mirror of https://gitee.com/openkylin/linux.git
12539 lines
386 KiB
C
12539 lines
386 KiB
C
/*******************************************************************
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* This file is part of the Emulex Linux Device Driver for *
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* Fibre Channel Host Bus Adapters. *
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* Copyright (C) 2004-2009 Emulex. All rights reserved. *
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* EMULEX and SLI are trademarks of Emulex. *
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* www.emulex.com *
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* Portions Copyright (C) 2004-2005 Christoph Hellwig *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of version 2 of the GNU General *
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* Public License as published by the Free Software Foundation. *
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* This program is distributed in the hope that it will be useful. *
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* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
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* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
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* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
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* TO BE LEGALLY INVALID. See the GNU General Public License for *
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* more details, a copy of which can be found in the file COPYING *
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* included with this package. *
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*******************************************************************/
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#include <linux/blkdev.h>
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#include <linux/pci.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_transport_fc.h>
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#include <scsi/fc/fc_fs.h>
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#include <linux/aer.h>
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#include "lpfc_hw4.h"
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#include "lpfc_hw.h"
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#include "lpfc_sli.h"
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#include "lpfc_sli4.h"
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#include "lpfc_nl.h"
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#include "lpfc_disc.h"
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#include "lpfc_scsi.h"
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#include "lpfc.h"
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#include "lpfc_crtn.h"
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#include "lpfc_logmsg.h"
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#include "lpfc_compat.h"
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#include "lpfc_debugfs.h"
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#include "lpfc_vport.h"
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/* There are only four IOCB completion types. */
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typedef enum _lpfc_iocb_type {
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LPFC_UNKNOWN_IOCB,
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LPFC_UNSOL_IOCB,
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LPFC_SOL_IOCB,
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LPFC_ABORT_IOCB
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} lpfc_iocb_type;
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/* Provide function prototypes local to this module. */
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static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
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uint32_t);
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static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
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uint8_t *, uint32_t *);
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static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
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struct lpfc_iocbq *);
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static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
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struct hbq_dmabuf *);
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static IOCB_t *
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lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
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{
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return &iocbq->iocb;
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}
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/**
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* lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
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* @q: The Work Queue to operate on.
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* @wqe: The work Queue Entry to put on the Work queue.
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*
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* This routine will copy the contents of @wqe to the next available entry on
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* the @q. This function will then ring the Work Queue Doorbell to signal the
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* HBA to start processing the Work Queue Entry. This function returns 0 if
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* successful. If no entries are available on @q then this function will return
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* -ENOMEM.
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* The caller is expected to hold the hbalock when calling this routine.
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**/
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static uint32_t
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lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
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{
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union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe;
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struct lpfc_register doorbell;
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uint32_t host_index;
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/* If the host has not yet processed the next entry then we are done */
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if (((q->host_index + 1) % q->entry_count) == q->hba_index)
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return -ENOMEM;
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/* set consumption flag every once in a while */
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if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL))
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bf_set(lpfc_wqe_gen_wqec, &wqe->generic, 1);
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lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
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/* Update the host index before invoking device */
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host_index = q->host_index;
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q->host_index = ((q->host_index + 1) % q->entry_count);
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/* Ring Doorbell */
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doorbell.word0 = 0;
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bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1);
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bf_set(lpfc_wq_doorbell_index, &doorbell, host_index);
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bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id);
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writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr);
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readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */
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return 0;
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}
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/**
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* lpfc_sli4_wq_release - Updates internal hba index for WQ
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* @q: The Work Queue to operate on.
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* @index: The index to advance the hba index to.
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*
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* This routine will update the HBA index of a queue to reflect consumption of
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* Work Queue Entries by the HBA. When the HBA indicates that it has consumed
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* an entry the host calls this function to update the queue's internal
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* pointers. This routine returns the number of entries that were consumed by
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* the HBA.
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**/
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static uint32_t
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lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
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{
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uint32_t released = 0;
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if (q->hba_index == index)
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return 0;
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do {
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q->hba_index = ((q->hba_index + 1) % q->entry_count);
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released++;
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} while (q->hba_index != index);
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return released;
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}
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/**
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* lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
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* @q: The Mailbox Queue to operate on.
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* @wqe: The Mailbox Queue Entry to put on the Work queue.
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*
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* This routine will copy the contents of @mqe to the next available entry on
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* the @q. This function will then ring the Work Queue Doorbell to signal the
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* HBA to start processing the Work Queue Entry. This function returns 0 if
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* successful. If no entries are available on @q then this function will return
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* -ENOMEM.
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* The caller is expected to hold the hbalock when calling this routine.
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**/
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static uint32_t
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lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
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{
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struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe;
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struct lpfc_register doorbell;
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uint32_t host_index;
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/* If the host has not yet processed the next entry then we are done */
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if (((q->host_index + 1) % q->entry_count) == q->hba_index)
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return -ENOMEM;
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lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
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/* Save off the mailbox pointer for completion */
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q->phba->mbox = (MAILBOX_t *)temp_mqe;
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/* Update the host index before invoking device */
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host_index = q->host_index;
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q->host_index = ((q->host_index + 1) % q->entry_count);
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/* Ring Doorbell */
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doorbell.word0 = 0;
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bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
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bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
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writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
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readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */
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return 0;
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}
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/**
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* lpfc_sli4_mq_release - Updates internal hba index for MQ
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* @q: The Mailbox Queue to operate on.
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*
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* This routine will update the HBA index of a queue to reflect consumption of
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* a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
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* an entry the host calls this function to update the queue's internal
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* pointers. This routine returns the number of entries that were consumed by
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* the HBA.
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**/
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static uint32_t
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lpfc_sli4_mq_release(struct lpfc_queue *q)
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{
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/* Clear the mailbox pointer for completion */
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q->phba->mbox = NULL;
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q->hba_index = ((q->hba_index + 1) % q->entry_count);
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return 1;
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}
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/**
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* lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
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* @q: The Event Queue to get the first valid EQE from
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*
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* This routine will get the first valid Event Queue Entry from @q, update
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* the queue's internal hba index, and return the EQE. If no valid EQEs are in
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* the Queue (no more work to do), or the Queue is full of EQEs that have been
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* processed, but not popped back to the HBA then this routine will return NULL.
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**/
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static struct lpfc_eqe *
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lpfc_sli4_eq_get(struct lpfc_queue *q)
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{
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struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe;
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/* If the next EQE is not valid then we are done */
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if (!bf_get(lpfc_eqe_valid, eqe))
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return NULL;
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/* If the host has not yet processed the next entry then we are done */
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if (((q->hba_index + 1) % q->entry_count) == q->host_index)
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return NULL;
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q->hba_index = ((q->hba_index + 1) % q->entry_count);
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return eqe;
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}
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/**
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* lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
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* @q: The Event Queue that the host has completed processing for.
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* @arm: Indicates whether the host wants to arms this CQ.
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*
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* This routine will mark all Event Queue Entries on @q, from the last
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* known completed entry to the last entry that was processed, as completed
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* by clearing the valid bit for each completion queue entry. Then it will
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* notify the HBA, by ringing the doorbell, that the EQEs have been processed.
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* The internal host index in the @q will be updated by this routine to indicate
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* that the host has finished processing the entries. The @arm parameter
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* indicates that the queue should be rearmed when ringing the doorbell.
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*
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* This function will return the number of EQEs that were popped.
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**/
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uint32_t
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lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
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{
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uint32_t released = 0;
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struct lpfc_eqe *temp_eqe;
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struct lpfc_register doorbell;
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/* while there are valid entries */
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while (q->hba_index != q->host_index) {
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temp_eqe = q->qe[q->host_index].eqe;
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bf_set(lpfc_eqe_valid, temp_eqe, 0);
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released++;
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q->host_index = ((q->host_index + 1) % q->entry_count);
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}
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if (unlikely(released == 0 && !arm))
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return 0;
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/* ring doorbell for number popped */
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doorbell.word0 = 0;
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if (arm) {
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bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
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bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
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}
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bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
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bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
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bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id);
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writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
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/* PCI read to flush PCI pipeline on re-arming for INTx mode */
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if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
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readl(q->phba->sli4_hba.EQCQDBregaddr);
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return released;
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}
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/**
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* lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
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* @q: The Completion Queue to get the first valid CQE from
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*
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* This routine will get the first valid Completion Queue Entry from @q, update
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* the queue's internal hba index, and return the CQE. If no valid CQEs are in
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* the Queue (no more work to do), or the Queue is full of CQEs that have been
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* processed, but not popped back to the HBA then this routine will return NULL.
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**/
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static struct lpfc_cqe *
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lpfc_sli4_cq_get(struct lpfc_queue *q)
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{
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struct lpfc_cqe *cqe;
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/* If the next CQE is not valid then we are done */
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if (!bf_get(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
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return NULL;
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/* If the host has not yet processed the next entry then we are done */
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if (((q->hba_index + 1) % q->entry_count) == q->host_index)
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return NULL;
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cqe = q->qe[q->hba_index].cqe;
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q->hba_index = ((q->hba_index + 1) % q->entry_count);
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return cqe;
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}
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/**
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* lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
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* @q: The Completion Queue that the host has completed processing for.
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* @arm: Indicates whether the host wants to arms this CQ.
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*
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* This routine will mark all Completion queue entries on @q, from the last
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* known completed entry to the last entry that was processed, as completed
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* by clearing the valid bit for each completion queue entry. Then it will
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* notify the HBA, by ringing the doorbell, that the CQEs have been processed.
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* The internal host index in the @q will be updated by this routine to indicate
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* that the host has finished processing the entries. The @arm parameter
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* indicates that the queue should be rearmed when ringing the doorbell.
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*
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* This function will return the number of CQEs that were released.
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**/
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uint32_t
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lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
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{
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uint32_t released = 0;
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struct lpfc_cqe *temp_qe;
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struct lpfc_register doorbell;
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/* while there are valid entries */
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while (q->hba_index != q->host_index) {
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temp_qe = q->qe[q->host_index].cqe;
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bf_set(lpfc_cqe_valid, temp_qe, 0);
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released++;
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q->host_index = ((q->host_index + 1) % q->entry_count);
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}
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if (unlikely(released == 0 && !arm))
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return 0;
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/* ring doorbell for number popped */
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doorbell.word0 = 0;
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if (arm)
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bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
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bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
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bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
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bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id);
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writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
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return released;
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}
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/**
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* lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
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* @q: The Header Receive Queue to operate on.
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* @wqe: The Receive Queue Entry to put on the Receive queue.
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*
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* This routine will copy the contents of @wqe to the next available entry on
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* the @q. This function will then ring the Receive Queue Doorbell to signal the
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* HBA to start processing the Receive Queue Entry. This function returns the
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* index that the rqe was copied to if successful. If no entries are available
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* on @q then this function will return -ENOMEM.
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* The caller is expected to hold the hbalock when calling this routine.
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**/
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static int
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lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
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struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
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{
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struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe;
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struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe;
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struct lpfc_register doorbell;
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int put_index = hq->host_index;
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if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
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return -EINVAL;
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if (hq->host_index != dq->host_index)
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return -EINVAL;
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/* If the host has not yet processed the next entry then we are done */
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if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
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return -EBUSY;
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lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
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lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
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/* Update the host index to point to the next slot */
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hq->host_index = ((hq->host_index + 1) % hq->entry_count);
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dq->host_index = ((dq->host_index + 1) % dq->entry_count);
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/* Ring The Header Receive Queue Doorbell */
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if (!(hq->host_index % LPFC_RQ_POST_BATCH)) {
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doorbell.word0 = 0;
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bf_set(lpfc_rq_doorbell_num_posted, &doorbell,
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LPFC_RQ_POST_BATCH);
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bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id);
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writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr);
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}
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return put_index;
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}
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/**
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* lpfc_sli4_rq_release - Updates internal hba index for RQ
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* @q: The Header Receive Queue to operate on.
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*
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* This routine will update the HBA index of a queue to reflect consumption of
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* one Receive Queue Entry by the HBA. When the HBA indicates that it has
|
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* consumed an entry the host calls this function to update the queue's
|
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* internal pointers. This routine returns the number of entries that were
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* consumed by the HBA.
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**/
|
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static uint32_t
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lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
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{
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if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
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return 0;
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hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
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dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
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return 1;
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}
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/**
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* lpfc_cmd_iocb - Get next command iocb entry in the ring
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* @phba: Pointer to HBA context object.
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* @pring: Pointer to driver SLI ring object.
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*
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* This function returns pointer to next command iocb entry
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* in the command ring. The caller must hold hbalock to prevent
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* other threads consume the next command iocb.
|
|
* SLI-2/SLI-3 provide different sized iocbs.
|
|
**/
|
|
static inline IOCB_t *
|
|
lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
|
|
{
|
|
return (IOCB_t *) (((char *) pring->cmdringaddr) +
|
|
pring->cmdidx * phba->iocb_cmd_size);
|
|
}
|
|
|
|
/**
|
|
* lpfc_resp_iocb - Get next response iocb entry in the ring
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
*
|
|
* This function returns pointer to next response iocb entry
|
|
* in the response ring. The caller must hold hbalock to make sure
|
|
* that no other thread consume the next response iocb.
|
|
* SLI-2/SLI-3 provide different sized iocbs.
|
|
**/
|
|
static inline IOCB_t *
|
|
lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
|
|
{
|
|
return (IOCB_t *) (((char *) pring->rspringaddr) +
|
|
pring->rspidx * phba->iocb_rsp_size);
|
|
}
|
|
|
|
/**
|
|
* __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called with hbalock held. This function
|
|
* allocates a new driver iocb object from the iocb pool. If the
|
|
* allocation is successful, it returns pointer to the newly
|
|
* allocated iocb object else it returns NULL.
|
|
**/
|
|
static struct lpfc_iocbq *
|
|
__lpfc_sli_get_iocbq(struct lpfc_hba *phba)
|
|
{
|
|
struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
|
|
struct lpfc_iocbq * iocbq = NULL;
|
|
|
|
list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
|
|
return iocbq;
|
|
}
|
|
|
|
/**
|
|
* __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
|
|
* @phba: Pointer to HBA context object.
|
|
* @xritag: XRI value.
|
|
*
|
|
* This function clears the sglq pointer from the array of acive
|
|
* sglq's. The xritag that is passed in is used to index into the
|
|
* array. Before the xritag can be used it needs to be adjusted
|
|
* by subtracting the xribase.
|
|
*
|
|
* Returns sglq ponter = success, NULL = Failure.
|
|
**/
|
|
static struct lpfc_sglq *
|
|
__lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
|
|
{
|
|
uint16_t adj_xri;
|
|
struct lpfc_sglq *sglq;
|
|
adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
|
|
if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
|
|
return NULL;
|
|
sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
|
|
phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL;
|
|
return sglq;
|
|
}
|
|
|
|
/**
|
|
* __lpfc_get_active_sglq - Get the active sglq for this XRI.
|
|
* @phba: Pointer to HBA context object.
|
|
* @xritag: XRI value.
|
|
*
|
|
* This function returns the sglq pointer from the array of acive
|
|
* sglq's. The xritag that is passed in is used to index into the
|
|
* array. Before the xritag can be used it needs to be adjusted
|
|
* by subtracting the xribase.
|
|
*
|
|
* Returns sglq ponter = success, NULL = Failure.
|
|
**/
|
|
struct lpfc_sglq *
|
|
__lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
|
|
{
|
|
uint16_t adj_xri;
|
|
struct lpfc_sglq *sglq;
|
|
adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
|
|
if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
|
|
return NULL;
|
|
sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
|
|
return sglq;
|
|
}
|
|
|
|
/**
|
|
* __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called with hbalock held. This function
|
|
* Gets a new driver sglq object from the sglq list. If the
|
|
* list is not empty then it is successful, it returns pointer to the newly
|
|
* allocated sglq object else it returns NULL.
|
|
**/
|
|
static struct lpfc_sglq *
|
|
__lpfc_sli_get_sglq(struct lpfc_hba *phba)
|
|
{
|
|
struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
|
|
struct lpfc_sglq *sglq = NULL;
|
|
uint16_t adj_xri;
|
|
list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
|
|
if (!sglq)
|
|
return NULL;
|
|
adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base;
|
|
phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq;
|
|
sglq->state = SGL_ALLOCATED;
|
|
return sglq;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called with no lock held. This function
|
|
* allocates a new driver iocb object from the iocb pool. If the
|
|
* allocation is successful, it returns pointer to the newly
|
|
* allocated iocb object else it returns NULL.
|
|
**/
|
|
struct lpfc_iocbq *
|
|
lpfc_sli_get_iocbq(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_iocbq * iocbq = NULL;
|
|
unsigned long iflags;
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
iocbq = __lpfc_sli_get_iocbq(phba);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
return iocbq;
|
|
}
|
|
|
|
/**
|
|
* __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
|
|
* @phba: Pointer to HBA context object.
|
|
* @iocbq: Pointer to driver iocb object.
|
|
*
|
|
* This function is called with hbalock held to release driver
|
|
* iocb object to the iocb pool. The iotag in the iocb object
|
|
* does not change for each use of the iocb object. This function
|
|
* clears all other fields of the iocb object when it is freed.
|
|
* The sqlq structure that holds the xritag and phys and virtual
|
|
* mappings for the scatter gather list is retrieved from the
|
|
* active array of sglq. The get of the sglq pointer also clears
|
|
* the entry in the array. If the status of the IO indiactes that
|
|
* this IO was aborted then the sglq entry it put on the
|
|
* lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
|
|
* IO has good status or fails for any other reason then the sglq
|
|
* entry is added to the free list (lpfc_sgl_list).
|
|
**/
|
|
static void
|
|
__lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
|
|
{
|
|
struct lpfc_sglq *sglq;
|
|
size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
|
|
unsigned long iflag;
|
|
|
|
if (iocbq->sli4_xritag == NO_XRI)
|
|
sglq = NULL;
|
|
else
|
|
sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag);
|
|
if (sglq) {
|
|
if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
|
|
(sglq->state != SGL_XRI_ABORTED)) {
|
|
spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
|
|
iflag);
|
|
list_add(&sglq->list,
|
|
&phba->sli4_hba.lpfc_abts_els_sgl_list);
|
|
spin_unlock_irqrestore(
|
|
&phba->sli4_hba.abts_sgl_list_lock, iflag);
|
|
} else {
|
|
sglq->state = SGL_FREED;
|
|
list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Clean all volatile data fields, preserve iotag and node struct.
|
|
*/
|
|
memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
|
|
iocbq->sli4_xritag = NO_XRI;
|
|
list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
|
|
}
|
|
|
|
/**
|
|
* __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
|
|
* @phba: Pointer to HBA context object.
|
|
* @iocbq: Pointer to driver iocb object.
|
|
*
|
|
* This function is called with hbalock held to release driver
|
|
* iocb object to the iocb pool. The iotag in the iocb object
|
|
* does not change for each use of the iocb object. This function
|
|
* clears all other fields of the iocb object when it is freed.
|
|
**/
|
|
static void
|
|
__lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
|
|
{
|
|
size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
|
|
|
|
/*
|
|
* Clean all volatile data fields, preserve iotag and node struct.
|
|
*/
|
|
memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
|
|
iocbq->sli4_xritag = NO_XRI;
|
|
list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
|
|
}
|
|
|
|
/**
|
|
* __lpfc_sli_release_iocbq - Release iocb to the iocb pool
|
|
* @phba: Pointer to HBA context object.
|
|
* @iocbq: Pointer to driver iocb object.
|
|
*
|
|
* This function is called with hbalock held to release driver
|
|
* iocb object to the iocb pool. The iotag in the iocb object
|
|
* does not change for each use of the iocb object. This function
|
|
* clears all other fields of the iocb object when it is freed.
|
|
**/
|
|
static void
|
|
__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
|
|
{
|
|
phba->__lpfc_sli_release_iocbq(phba, iocbq);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_release_iocbq - Release iocb to the iocb pool
|
|
* @phba: Pointer to HBA context object.
|
|
* @iocbq: Pointer to driver iocb object.
|
|
*
|
|
* This function is called with no lock held to release the iocb to
|
|
* iocb pool.
|
|
**/
|
|
void
|
|
lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
|
|
{
|
|
unsigned long iflags;
|
|
|
|
/*
|
|
* Clean all volatile data fields, preserve iotag and node struct.
|
|
*/
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
__lpfc_sli_release_iocbq(phba, iocbq);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
|
|
* @phba: Pointer to HBA context object.
|
|
* @iocblist: List of IOCBs.
|
|
* @ulpstatus: ULP status in IOCB command field.
|
|
* @ulpWord4: ULP word-4 in IOCB command field.
|
|
*
|
|
* This function is called with a list of IOCBs to cancel. It cancels the IOCB
|
|
* on the list by invoking the complete callback function associated with the
|
|
* IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
|
|
* fields.
|
|
**/
|
|
void
|
|
lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
|
|
uint32_t ulpstatus, uint32_t ulpWord4)
|
|
{
|
|
struct lpfc_iocbq *piocb;
|
|
|
|
while (!list_empty(iocblist)) {
|
|
list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
|
|
|
|
if (!piocb->iocb_cmpl)
|
|
lpfc_sli_release_iocbq(phba, piocb);
|
|
else {
|
|
piocb->iocb.ulpStatus = ulpstatus;
|
|
piocb->iocb.un.ulpWord[4] = ulpWord4;
|
|
(piocb->iocb_cmpl) (phba, piocb, piocb);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_iocb_cmd_type - Get the iocb type
|
|
* @iocb_cmnd: iocb command code.
|
|
*
|
|
* This function is called by ring event handler function to get the iocb type.
|
|
* This function translates the iocb command to an iocb command type used to
|
|
* decide the final disposition of each completed IOCB.
|
|
* The function returns
|
|
* LPFC_UNKNOWN_IOCB if it is an unsupported iocb
|
|
* LPFC_SOL_IOCB if it is a solicited iocb completion
|
|
* LPFC_ABORT_IOCB if it is an abort iocb
|
|
* LPFC_UNSOL_IOCB if it is an unsolicited iocb
|
|
*
|
|
* The caller is not required to hold any lock.
|
|
**/
|
|
static lpfc_iocb_type
|
|
lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
|
|
{
|
|
lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
|
|
|
|
if (iocb_cmnd > CMD_MAX_IOCB_CMD)
|
|
return 0;
|
|
|
|
switch (iocb_cmnd) {
|
|
case CMD_XMIT_SEQUENCE_CR:
|
|
case CMD_XMIT_SEQUENCE_CX:
|
|
case CMD_XMIT_BCAST_CN:
|
|
case CMD_XMIT_BCAST_CX:
|
|
case CMD_ELS_REQUEST_CR:
|
|
case CMD_ELS_REQUEST_CX:
|
|
case CMD_CREATE_XRI_CR:
|
|
case CMD_CREATE_XRI_CX:
|
|
case CMD_GET_RPI_CN:
|
|
case CMD_XMIT_ELS_RSP_CX:
|
|
case CMD_GET_RPI_CR:
|
|
case CMD_FCP_IWRITE_CR:
|
|
case CMD_FCP_IWRITE_CX:
|
|
case CMD_FCP_IREAD_CR:
|
|
case CMD_FCP_IREAD_CX:
|
|
case CMD_FCP_ICMND_CR:
|
|
case CMD_FCP_ICMND_CX:
|
|
case CMD_FCP_TSEND_CX:
|
|
case CMD_FCP_TRSP_CX:
|
|
case CMD_FCP_TRECEIVE_CX:
|
|
case CMD_FCP_AUTO_TRSP_CX:
|
|
case CMD_ADAPTER_MSG:
|
|
case CMD_ADAPTER_DUMP:
|
|
case CMD_XMIT_SEQUENCE64_CR:
|
|
case CMD_XMIT_SEQUENCE64_CX:
|
|
case CMD_XMIT_BCAST64_CN:
|
|
case CMD_XMIT_BCAST64_CX:
|
|
case CMD_ELS_REQUEST64_CR:
|
|
case CMD_ELS_REQUEST64_CX:
|
|
case CMD_FCP_IWRITE64_CR:
|
|
case CMD_FCP_IWRITE64_CX:
|
|
case CMD_FCP_IREAD64_CR:
|
|
case CMD_FCP_IREAD64_CX:
|
|
case CMD_FCP_ICMND64_CR:
|
|
case CMD_FCP_ICMND64_CX:
|
|
case CMD_FCP_TSEND64_CX:
|
|
case CMD_FCP_TRSP64_CX:
|
|
case CMD_FCP_TRECEIVE64_CX:
|
|
case CMD_GEN_REQUEST64_CR:
|
|
case CMD_GEN_REQUEST64_CX:
|
|
case CMD_XMIT_ELS_RSP64_CX:
|
|
case DSSCMD_IWRITE64_CR:
|
|
case DSSCMD_IWRITE64_CX:
|
|
case DSSCMD_IREAD64_CR:
|
|
case DSSCMD_IREAD64_CX:
|
|
type = LPFC_SOL_IOCB;
|
|
break;
|
|
case CMD_ABORT_XRI_CN:
|
|
case CMD_ABORT_XRI_CX:
|
|
case CMD_CLOSE_XRI_CN:
|
|
case CMD_CLOSE_XRI_CX:
|
|
case CMD_XRI_ABORTED_CX:
|
|
case CMD_ABORT_MXRI64_CN:
|
|
case CMD_XMIT_BLS_RSP64_CX:
|
|
type = LPFC_ABORT_IOCB;
|
|
break;
|
|
case CMD_RCV_SEQUENCE_CX:
|
|
case CMD_RCV_ELS_REQ_CX:
|
|
case CMD_RCV_SEQUENCE64_CX:
|
|
case CMD_RCV_ELS_REQ64_CX:
|
|
case CMD_ASYNC_STATUS:
|
|
case CMD_IOCB_RCV_SEQ64_CX:
|
|
case CMD_IOCB_RCV_ELS64_CX:
|
|
case CMD_IOCB_RCV_CONT64_CX:
|
|
case CMD_IOCB_RET_XRI64_CX:
|
|
type = LPFC_UNSOL_IOCB;
|
|
break;
|
|
case CMD_IOCB_XMIT_MSEQ64_CR:
|
|
case CMD_IOCB_XMIT_MSEQ64_CX:
|
|
case CMD_IOCB_RCV_SEQ_LIST64_CX:
|
|
case CMD_IOCB_RCV_ELS_LIST64_CX:
|
|
case CMD_IOCB_CLOSE_EXTENDED_CN:
|
|
case CMD_IOCB_ABORT_EXTENDED_CN:
|
|
case CMD_IOCB_RET_HBQE64_CN:
|
|
case CMD_IOCB_FCP_IBIDIR64_CR:
|
|
case CMD_IOCB_FCP_IBIDIR64_CX:
|
|
case CMD_IOCB_FCP_ITASKMGT64_CX:
|
|
case CMD_IOCB_LOGENTRY_CN:
|
|
case CMD_IOCB_LOGENTRY_ASYNC_CN:
|
|
printk("%s - Unhandled SLI-3 Command x%x\n",
|
|
__func__, iocb_cmnd);
|
|
type = LPFC_UNKNOWN_IOCB;
|
|
break;
|
|
default:
|
|
type = LPFC_UNKNOWN_IOCB;
|
|
break;
|
|
}
|
|
|
|
return type;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_ring_map - Issue config_ring mbox for all rings
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called from SLI initialization code
|
|
* to configure every ring of the HBA's SLI interface. The
|
|
* caller is not required to hold any lock. This function issues
|
|
* a config_ring mailbox command for each ring.
|
|
* This function returns zero if successful else returns a negative
|
|
* error code.
|
|
**/
|
|
static int
|
|
lpfc_sli_ring_map(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
LPFC_MBOXQ_t *pmb;
|
|
MAILBOX_t *pmbox;
|
|
int i, rc, ret = 0;
|
|
|
|
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmb)
|
|
return -ENOMEM;
|
|
pmbox = &pmb->u.mb;
|
|
phba->link_state = LPFC_INIT_MBX_CMDS;
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
lpfc_config_ring(phba, i, pmb);
|
|
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
|
|
if (rc != MBX_SUCCESS) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0446 Adapter failed to init (%d), "
|
|
"mbxCmd x%x CFG_RING, mbxStatus x%x, "
|
|
"ring %d\n",
|
|
rc, pmbox->mbxCommand,
|
|
pmbox->mbxStatus, i);
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
ret = -ENXIO;
|
|
break;
|
|
}
|
|
}
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @piocb: Pointer to the driver iocb object.
|
|
*
|
|
* This function is called with hbalock held. The function adds the
|
|
* new iocb to txcmplq of the given ring. This function always returns
|
|
* 0. If this function is called for ELS ring, this function checks if
|
|
* there is a vport associated with the ELS command. This function also
|
|
* starts els_tmofunc timer if this is an ELS command.
|
|
**/
|
|
static int
|
|
lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *piocb)
|
|
{
|
|
list_add_tail(&piocb->list, &pring->txcmplq);
|
|
pring->txcmplq_cnt++;
|
|
if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
|
|
(piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
|
|
(piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
|
|
if (!piocb->vport)
|
|
BUG();
|
|
else
|
|
mod_timer(&piocb->vport->els_tmofunc,
|
|
jiffies + HZ * (phba->fc_ratov << 1));
|
|
}
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_ringtx_get - Get first element of the txq
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
*
|
|
* This function is called with hbalock held to get next
|
|
* iocb in txq of the given ring. If there is any iocb in
|
|
* the txq, the function returns first iocb in the list after
|
|
* removing the iocb from the list, else it returns NULL.
|
|
**/
|
|
static struct lpfc_iocbq *
|
|
lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
|
|
{
|
|
struct lpfc_iocbq *cmd_iocb;
|
|
|
|
list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
|
|
if (cmd_iocb != NULL)
|
|
pring->txq_cnt--;
|
|
return cmd_iocb;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
*
|
|
* This function is called with hbalock held and the caller must post the
|
|
* iocb without releasing the lock. If the caller releases the lock,
|
|
* iocb slot returned by the function is not guaranteed to be available.
|
|
* The function returns pointer to the next available iocb slot if there
|
|
* is available slot in the ring, else it returns NULL.
|
|
* If the get index of the ring is ahead of the put index, the function
|
|
* will post an error attention event to the worker thread to take the
|
|
* HBA to offline state.
|
|
**/
|
|
static IOCB_t *
|
|
lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
|
|
{
|
|
struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
|
|
uint32_t max_cmd_idx = pring->numCiocb;
|
|
if ((pring->next_cmdidx == pring->cmdidx) &&
|
|
(++pring->next_cmdidx >= max_cmd_idx))
|
|
pring->next_cmdidx = 0;
|
|
|
|
if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
|
|
|
|
pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
|
|
|
|
if (unlikely(pring->local_getidx >= max_cmd_idx)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0315 Ring %d issue: portCmdGet %d "
|
|
"is bigger than cmd ring %d\n",
|
|
pring->ringno,
|
|
pring->local_getidx, max_cmd_idx);
|
|
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
/*
|
|
* All error attention handlers are posted to
|
|
* worker thread
|
|
*/
|
|
phba->work_ha |= HA_ERATT;
|
|
phba->work_hs = HS_FFER3;
|
|
|
|
lpfc_worker_wake_up(phba);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
if (pring->local_getidx == pring->next_cmdidx)
|
|
return NULL;
|
|
}
|
|
|
|
return lpfc_cmd_iocb(phba, pring);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_next_iotag - Get an iotag for the iocb
|
|
* @phba: Pointer to HBA context object.
|
|
* @iocbq: Pointer to driver iocb object.
|
|
*
|
|
* This function gets an iotag for the iocb. If there is no unused iotag and
|
|
* the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
|
|
* array and assigns a new iotag.
|
|
* The function returns the allocated iotag if successful, else returns zero.
|
|
* Zero is not a valid iotag.
|
|
* The caller is not required to hold any lock.
|
|
**/
|
|
uint16_t
|
|
lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
|
|
{
|
|
struct lpfc_iocbq **new_arr;
|
|
struct lpfc_iocbq **old_arr;
|
|
size_t new_len;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
uint16_t iotag;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
iotag = psli->last_iotag;
|
|
if(++iotag < psli->iocbq_lookup_len) {
|
|
psli->last_iotag = iotag;
|
|
psli->iocbq_lookup[iotag] = iocbq;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
iocbq->iotag = iotag;
|
|
return iotag;
|
|
} else if (psli->iocbq_lookup_len < (0xffff
|
|
- LPFC_IOCBQ_LOOKUP_INCREMENT)) {
|
|
new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
|
|
GFP_KERNEL);
|
|
if (new_arr) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
old_arr = psli->iocbq_lookup;
|
|
if (new_len <= psli->iocbq_lookup_len) {
|
|
/* highly unprobable case */
|
|
kfree(new_arr);
|
|
iotag = psli->last_iotag;
|
|
if(++iotag < psli->iocbq_lookup_len) {
|
|
psli->last_iotag = iotag;
|
|
psli->iocbq_lookup[iotag] = iocbq;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
iocbq->iotag = iotag;
|
|
return iotag;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return 0;
|
|
}
|
|
if (psli->iocbq_lookup)
|
|
memcpy(new_arr, old_arr,
|
|
((psli->last_iotag + 1) *
|
|
sizeof (struct lpfc_iocbq *)));
|
|
psli->iocbq_lookup = new_arr;
|
|
psli->iocbq_lookup_len = new_len;
|
|
psli->last_iotag = iotag;
|
|
psli->iocbq_lookup[iotag] = iocbq;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
iocbq->iotag = iotag;
|
|
kfree(old_arr);
|
|
return iotag;
|
|
}
|
|
} else
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
|
|
"0318 Failed to allocate IOTAG.last IOTAG is %d\n",
|
|
psli->last_iotag);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_submit_iocb - Submit an iocb to the firmware
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @iocb: Pointer to iocb slot in the ring.
|
|
* @nextiocb: Pointer to driver iocb object which need to be
|
|
* posted to firmware.
|
|
*
|
|
* This function is called with hbalock held to post a new iocb to
|
|
* the firmware. This function copies the new iocb to ring iocb slot and
|
|
* updates the ring pointers. It adds the new iocb to txcmplq if there is
|
|
* a completion call back for this iocb else the function will free the
|
|
* iocb object.
|
|
**/
|
|
static void
|
|
lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
|
|
{
|
|
/*
|
|
* Set up an iotag
|
|
*/
|
|
nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
|
|
|
|
|
|
if (pring->ringno == LPFC_ELS_RING) {
|
|
lpfc_debugfs_slow_ring_trc(phba,
|
|
"IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
|
|
*(((uint32_t *) &nextiocb->iocb) + 4),
|
|
*(((uint32_t *) &nextiocb->iocb) + 6),
|
|
*(((uint32_t *) &nextiocb->iocb) + 7));
|
|
}
|
|
|
|
/*
|
|
* Issue iocb command to adapter
|
|
*/
|
|
lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
|
|
wmb();
|
|
pring->stats.iocb_cmd++;
|
|
|
|
/*
|
|
* If there is no completion routine to call, we can release the
|
|
* IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
|
|
* that have no rsp ring completion, iocb_cmpl MUST be NULL.
|
|
*/
|
|
if (nextiocb->iocb_cmpl)
|
|
lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
|
|
else
|
|
__lpfc_sli_release_iocbq(phba, nextiocb);
|
|
|
|
/*
|
|
* Let the HBA know what IOCB slot will be the next one the
|
|
* driver will put a command into.
|
|
*/
|
|
pring->cmdidx = pring->next_cmdidx;
|
|
writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_update_full_ring - Update the chip attention register
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
*
|
|
* The caller is not required to hold any lock for calling this function.
|
|
* This function updates the chip attention bits for the ring to inform firmware
|
|
* that there are pending work to be done for this ring and requests an
|
|
* interrupt when there is space available in the ring. This function is
|
|
* called when the driver is unable to post more iocbs to the ring due
|
|
* to unavailability of space in the ring.
|
|
**/
|
|
static void
|
|
lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
|
|
{
|
|
int ringno = pring->ringno;
|
|
|
|
pring->flag |= LPFC_CALL_RING_AVAILABLE;
|
|
|
|
wmb();
|
|
|
|
/*
|
|
* Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
|
|
* The HBA will tell us when an IOCB entry is available.
|
|
*/
|
|
writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
|
|
readl(phba->CAregaddr); /* flush */
|
|
|
|
pring->stats.iocb_cmd_full++;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_update_ring - Update chip attention register
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
*
|
|
* This function updates the chip attention register bit for the
|
|
* given ring to inform HBA that there is more work to be done
|
|
* in this ring. The caller is not required to hold any lock.
|
|
**/
|
|
static void
|
|
lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
|
|
{
|
|
int ringno = pring->ringno;
|
|
|
|
/*
|
|
* Tell the HBA that there is work to do in this ring.
|
|
*/
|
|
if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
|
|
wmb();
|
|
writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
|
|
readl(phba->CAregaddr); /* flush */
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_resume_iocb - Process iocbs in the txq
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
*
|
|
* This function is called with hbalock held to post pending iocbs
|
|
* in the txq to the firmware. This function is called when driver
|
|
* detects space available in the ring.
|
|
**/
|
|
static void
|
|
lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
|
|
{
|
|
IOCB_t *iocb;
|
|
struct lpfc_iocbq *nextiocb;
|
|
|
|
/*
|
|
* Check to see if:
|
|
* (a) there is anything on the txq to send
|
|
* (b) link is up
|
|
* (c) link attention events can be processed (fcp ring only)
|
|
* (d) IOCB processing is not blocked by the outstanding mbox command.
|
|
*/
|
|
if (pring->txq_cnt &&
|
|
lpfc_is_link_up(phba) &&
|
|
(pring->ringno != phba->sli.fcp_ring ||
|
|
phba->sli.sli_flag & LPFC_PROCESS_LA)) {
|
|
|
|
while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
|
|
(nextiocb = lpfc_sli_ringtx_get(phba, pring)))
|
|
lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
|
|
|
|
if (iocb)
|
|
lpfc_sli_update_ring(phba, pring);
|
|
else
|
|
lpfc_sli_update_full_ring(phba, pring);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
|
|
* @phba: Pointer to HBA context object.
|
|
* @hbqno: HBQ number.
|
|
*
|
|
* This function is called with hbalock held to get the next
|
|
* available slot for the given HBQ. If there is free slot
|
|
* available for the HBQ it will return pointer to the next available
|
|
* HBQ entry else it will return NULL.
|
|
**/
|
|
static struct lpfc_hbq_entry *
|
|
lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
|
|
{
|
|
struct hbq_s *hbqp = &phba->hbqs[hbqno];
|
|
|
|
if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
|
|
++hbqp->next_hbqPutIdx >= hbqp->entry_count)
|
|
hbqp->next_hbqPutIdx = 0;
|
|
|
|
if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
|
|
uint32_t raw_index = phba->hbq_get[hbqno];
|
|
uint32_t getidx = le32_to_cpu(raw_index);
|
|
|
|
hbqp->local_hbqGetIdx = getidx;
|
|
|
|
if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
|
|
lpfc_printf_log(phba, KERN_ERR,
|
|
LOG_SLI | LOG_VPORT,
|
|
"1802 HBQ %d: local_hbqGetIdx "
|
|
"%u is > than hbqp->entry_count %u\n",
|
|
hbqno, hbqp->local_hbqGetIdx,
|
|
hbqp->entry_count);
|
|
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
return NULL;
|
|
}
|
|
|
|
if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
|
|
return NULL;
|
|
}
|
|
|
|
return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
|
|
hbqp->hbqPutIdx;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called with no lock held to free all the
|
|
* hbq buffers while uninitializing the SLI interface. It also
|
|
* frees the HBQ buffers returned by the firmware but not yet
|
|
* processed by the upper layers.
|
|
**/
|
|
void
|
|
lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_dmabuf *dmabuf, *next_dmabuf;
|
|
struct hbq_dmabuf *hbq_buf;
|
|
unsigned long flags;
|
|
int i, hbq_count;
|
|
uint32_t hbqno;
|
|
|
|
hbq_count = lpfc_sli_hbq_count();
|
|
/* Return all memory used by all HBQs */
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
for (i = 0; i < hbq_count; ++i) {
|
|
list_for_each_entry_safe(dmabuf, next_dmabuf,
|
|
&phba->hbqs[i].hbq_buffer_list, list) {
|
|
hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
|
|
list_del(&hbq_buf->dbuf.list);
|
|
(phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
|
|
}
|
|
phba->hbqs[i].buffer_count = 0;
|
|
}
|
|
/* Return all HBQ buffer that are in-fly */
|
|
list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
|
|
list) {
|
|
hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
|
|
list_del(&hbq_buf->dbuf.list);
|
|
if (hbq_buf->tag == -1) {
|
|
(phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
|
|
(phba, hbq_buf);
|
|
} else {
|
|
hbqno = hbq_buf->tag >> 16;
|
|
if (hbqno >= LPFC_MAX_HBQS)
|
|
(phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
|
|
(phba, hbq_buf);
|
|
else
|
|
(phba->hbqs[hbqno].hbq_free_buffer)(phba,
|
|
hbq_buf);
|
|
}
|
|
}
|
|
|
|
/* Mark the HBQs not in use */
|
|
phba->hbq_in_use = 0;
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
|
|
* @phba: Pointer to HBA context object.
|
|
* @hbqno: HBQ number.
|
|
* @hbq_buf: Pointer to HBQ buffer.
|
|
*
|
|
* This function is called with the hbalock held to post a
|
|
* hbq buffer to the firmware. If the function finds an empty
|
|
* slot in the HBQ, it will post the buffer. The function will return
|
|
* pointer to the hbq entry if it successfully post the buffer
|
|
* else it will return NULL.
|
|
**/
|
|
static int
|
|
lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
|
|
struct hbq_dmabuf *hbq_buf)
|
|
{
|
|
return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
|
|
* @phba: Pointer to HBA context object.
|
|
* @hbqno: HBQ number.
|
|
* @hbq_buf: Pointer to HBQ buffer.
|
|
*
|
|
* This function is called with the hbalock held to post a hbq buffer to the
|
|
* firmware. If the function finds an empty slot in the HBQ, it will post the
|
|
* buffer and place it on the hbq_buffer_list. The function will return zero if
|
|
* it successfully post the buffer else it will return an error.
|
|
**/
|
|
static int
|
|
lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
|
|
struct hbq_dmabuf *hbq_buf)
|
|
{
|
|
struct lpfc_hbq_entry *hbqe;
|
|
dma_addr_t physaddr = hbq_buf->dbuf.phys;
|
|
|
|
/* Get next HBQ entry slot to use */
|
|
hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
|
|
if (hbqe) {
|
|
struct hbq_s *hbqp = &phba->hbqs[hbqno];
|
|
|
|
hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
|
|
hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
|
|
hbqe->bde.tus.f.bdeSize = hbq_buf->size;
|
|
hbqe->bde.tus.f.bdeFlags = 0;
|
|
hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
|
|
hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
|
|
/* Sync SLIM */
|
|
hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
|
|
writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
|
|
/* flush */
|
|
readl(phba->hbq_put + hbqno);
|
|
list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
|
|
return 0;
|
|
} else
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
|
|
* @phba: Pointer to HBA context object.
|
|
* @hbqno: HBQ number.
|
|
* @hbq_buf: Pointer to HBQ buffer.
|
|
*
|
|
* This function is called with the hbalock held to post an RQE to the SLI4
|
|
* firmware. If able to post the RQE to the RQ it will queue the hbq entry to
|
|
* the hbq_buffer_list and return zero, otherwise it will return an error.
|
|
**/
|
|
static int
|
|
lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
|
|
struct hbq_dmabuf *hbq_buf)
|
|
{
|
|
int rc;
|
|
struct lpfc_rqe hrqe;
|
|
struct lpfc_rqe drqe;
|
|
|
|
hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
|
|
hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
|
|
drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
|
|
drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
|
|
rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
|
|
&hrqe, &drqe);
|
|
if (rc < 0)
|
|
return rc;
|
|
hbq_buf->tag = rc;
|
|
list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
|
|
return 0;
|
|
}
|
|
|
|
/* HBQ for ELS and CT traffic. */
|
|
static struct lpfc_hbq_init lpfc_els_hbq = {
|
|
.rn = 1,
|
|
.entry_count = 256,
|
|
.mask_count = 0,
|
|
.profile = 0,
|
|
.ring_mask = (1 << LPFC_ELS_RING),
|
|
.buffer_count = 0,
|
|
.init_count = 40,
|
|
.add_count = 40,
|
|
};
|
|
|
|
/* HBQ for the extra ring if needed */
|
|
static struct lpfc_hbq_init lpfc_extra_hbq = {
|
|
.rn = 1,
|
|
.entry_count = 200,
|
|
.mask_count = 0,
|
|
.profile = 0,
|
|
.ring_mask = (1 << LPFC_EXTRA_RING),
|
|
.buffer_count = 0,
|
|
.init_count = 0,
|
|
.add_count = 5,
|
|
};
|
|
|
|
/* Array of HBQs */
|
|
struct lpfc_hbq_init *lpfc_hbq_defs[] = {
|
|
&lpfc_els_hbq,
|
|
&lpfc_extra_hbq,
|
|
};
|
|
|
|
/**
|
|
* lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
|
|
* @phba: Pointer to HBA context object.
|
|
* @hbqno: HBQ number.
|
|
* @count: Number of HBQ buffers to be posted.
|
|
*
|
|
* This function is called with no lock held to post more hbq buffers to the
|
|
* given HBQ. The function returns the number of HBQ buffers successfully
|
|
* posted.
|
|
**/
|
|
static int
|
|
lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
|
|
{
|
|
uint32_t i, posted = 0;
|
|
unsigned long flags;
|
|
struct hbq_dmabuf *hbq_buffer;
|
|
LIST_HEAD(hbq_buf_list);
|
|
if (!phba->hbqs[hbqno].hbq_alloc_buffer)
|
|
return 0;
|
|
|
|
if ((phba->hbqs[hbqno].buffer_count + count) >
|
|
lpfc_hbq_defs[hbqno]->entry_count)
|
|
count = lpfc_hbq_defs[hbqno]->entry_count -
|
|
phba->hbqs[hbqno].buffer_count;
|
|
if (!count)
|
|
return 0;
|
|
/* Allocate HBQ entries */
|
|
for (i = 0; i < count; i++) {
|
|
hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
|
|
if (!hbq_buffer)
|
|
break;
|
|
list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
|
|
}
|
|
/* Check whether HBQ is still in use */
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
if (!phba->hbq_in_use)
|
|
goto err;
|
|
while (!list_empty(&hbq_buf_list)) {
|
|
list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
|
|
dbuf.list);
|
|
hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
|
|
(hbqno << 16));
|
|
if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
|
|
phba->hbqs[hbqno].buffer_count++;
|
|
posted++;
|
|
} else
|
|
(phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
|
|
}
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
return posted;
|
|
err:
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
while (!list_empty(&hbq_buf_list)) {
|
|
list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
|
|
dbuf.list);
|
|
(phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
|
|
* @phba: Pointer to HBA context object.
|
|
* @qno: HBQ number.
|
|
*
|
|
* This function posts more buffers to the HBQ. This function
|
|
* is called with no lock held. The function returns the number of HBQ entries
|
|
* successfully allocated.
|
|
**/
|
|
int
|
|
lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
|
|
{
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
return 0;
|
|
else
|
|
return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
|
|
lpfc_hbq_defs[qno]->add_count);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
|
|
* @phba: Pointer to HBA context object.
|
|
* @qno: HBQ queue number.
|
|
*
|
|
* This function is called from SLI initialization code path with
|
|
* no lock held to post initial HBQ buffers to firmware. The
|
|
* function returns the number of HBQ entries successfully allocated.
|
|
**/
|
|
static int
|
|
lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
|
|
{
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
|
|
lpfc_hbq_defs[qno]->entry_count);
|
|
else
|
|
return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
|
|
lpfc_hbq_defs[qno]->init_count);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
|
|
* @phba: Pointer to HBA context object.
|
|
* @hbqno: HBQ number.
|
|
*
|
|
* This function removes the first hbq buffer on an hbq list and returns a
|
|
* pointer to that buffer. If it finds no buffers on the list it returns NULL.
|
|
**/
|
|
static struct hbq_dmabuf *
|
|
lpfc_sli_hbqbuf_get(struct list_head *rb_list)
|
|
{
|
|
struct lpfc_dmabuf *d_buf;
|
|
|
|
list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
|
|
if (!d_buf)
|
|
return NULL;
|
|
return container_of(d_buf, struct hbq_dmabuf, dbuf);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
|
|
* @phba: Pointer to HBA context object.
|
|
* @tag: Tag of the hbq buffer.
|
|
*
|
|
* This function is called with hbalock held. This function searches
|
|
* for the hbq buffer associated with the given tag in the hbq buffer
|
|
* list. If it finds the hbq buffer, it returns the hbq_buffer other wise
|
|
* it returns NULL.
|
|
**/
|
|
static struct hbq_dmabuf *
|
|
lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
|
|
{
|
|
struct lpfc_dmabuf *d_buf;
|
|
struct hbq_dmabuf *hbq_buf;
|
|
uint32_t hbqno;
|
|
|
|
hbqno = tag >> 16;
|
|
if (hbqno >= LPFC_MAX_HBQS)
|
|
return NULL;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
|
|
hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
|
|
if (hbq_buf->tag == tag) {
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return hbq_buf;
|
|
}
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
|
|
"1803 Bad hbq tag. Data: x%x x%x\n",
|
|
tag, phba->hbqs[tag >> 16].buffer_count);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_free_hbq - Give back the hbq buffer to firmware
|
|
* @phba: Pointer to HBA context object.
|
|
* @hbq_buffer: Pointer to HBQ buffer.
|
|
*
|
|
* This function is called with hbalock. This function gives back
|
|
* the hbq buffer to firmware. If the HBQ does not have space to
|
|
* post the buffer, it will free the buffer.
|
|
**/
|
|
void
|
|
lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
|
|
{
|
|
uint32_t hbqno;
|
|
|
|
if (hbq_buffer) {
|
|
hbqno = hbq_buffer->tag >> 16;
|
|
if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
|
|
(phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
|
|
* @mbxCommand: mailbox command code.
|
|
*
|
|
* This function is called by the mailbox event handler function to verify
|
|
* that the completed mailbox command is a legitimate mailbox command. If the
|
|
* completed mailbox is not known to the function, it will return MBX_SHUTDOWN
|
|
* and the mailbox event handler will take the HBA offline.
|
|
**/
|
|
static int
|
|
lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
|
|
{
|
|
uint8_t ret;
|
|
|
|
switch (mbxCommand) {
|
|
case MBX_LOAD_SM:
|
|
case MBX_READ_NV:
|
|
case MBX_WRITE_NV:
|
|
case MBX_WRITE_VPARMS:
|
|
case MBX_RUN_BIU_DIAG:
|
|
case MBX_INIT_LINK:
|
|
case MBX_DOWN_LINK:
|
|
case MBX_CONFIG_LINK:
|
|
case MBX_CONFIG_RING:
|
|
case MBX_RESET_RING:
|
|
case MBX_READ_CONFIG:
|
|
case MBX_READ_RCONFIG:
|
|
case MBX_READ_SPARM:
|
|
case MBX_READ_STATUS:
|
|
case MBX_READ_RPI:
|
|
case MBX_READ_XRI:
|
|
case MBX_READ_REV:
|
|
case MBX_READ_LNK_STAT:
|
|
case MBX_REG_LOGIN:
|
|
case MBX_UNREG_LOGIN:
|
|
case MBX_READ_LA:
|
|
case MBX_CLEAR_LA:
|
|
case MBX_DUMP_MEMORY:
|
|
case MBX_DUMP_CONTEXT:
|
|
case MBX_RUN_DIAGS:
|
|
case MBX_RESTART:
|
|
case MBX_UPDATE_CFG:
|
|
case MBX_DOWN_LOAD:
|
|
case MBX_DEL_LD_ENTRY:
|
|
case MBX_RUN_PROGRAM:
|
|
case MBX_SET_MASK:
|
|
case MBX_SET_VARIABLE:
|
|
case MBX_UNREG_D_ID:
|
|
case MBX_KILL_BOARD:
|
|
case MBX_CONFIG_FARP:
|
|
case MBX_BEACON:
|
|
case MBX_LOAD_AREA:
|
|
case MBX_RUN_BIU_DIAG64:
|
|
case MBX_CONFIG_PORT:
|
|
case MBX_READ_SPARM64:
|
|
case MBX_READ_RPI64:
|
|
case MBX_REG_LOGIN64:
|
|
case MBX_READ_LA64:
|
|
case MBX_WRITE_WWN:
|
|
case MBX_SET_DEBUG:
|
|
case MBX_LOAD_EXP_ROM:
|
|
case MBX_ASYNCEVT_ENABLE:
|
|
case MBX_REG_VPI:
|
|
case MBX_UNREG_VPI:
|
|
case MBX_HEARTBEAT:
|
|
case MBX_PORT_CAPABILITIES:
|
|
case MBX_PORT_IOV_CONTROL:
|
|
case MBX_SLI4_CONFIG:
|
|
case MBX_SLI4_REQ_FTRS:
|
|
case MBX_REG_FCFI:
|
|
case MBX_UNREG_FCFI:
|
|
case MBX_REG_VFI:
|
|
case MBX_UNREG_VFI:
|
|
case MBX_INIT_VPI:
|
|
case MBX_INIT_VFI:
|
|
case MBX_RESUME_RPI:
|
|
ret = mbxCommand;
|
|
break;
|
|
default:
|
|
ret = MBX_SHUTDOWN;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
|
|
* @phba: Pointer to HBA context object.
|
|
* @pmboxq: Pointer to mailbox command.
|
|
*
|
|
* This is completion handler function for mailbox commands issued from
|
|
* lpfc_sli_issue_mbox_wait function. This function is called by the
|
|
* mailbox event handler function with no lock held. This function
|
|
* will wake up thread waiting on the wait queue pointed by context1
|
|
* of the mailbox.
|
|
**/
|
|
void
|
|
lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
|
|
{
|
|
wait_queue_head_t *pdone_q;
|
|
unsigned long drvr_flag;
|
|
|
|
/*
|
|
* If pdone_q is empty, the driver thread gave up waiting and
|
|
* continued running.
|
|
*/
|
|
pmboxq->mbox_flag |= LPFC_MBX_WAKE;
|
|
spin_lock_irqsave(&phba->hbalock, drvr_flag);
|
|
pdone_q = (wait_queue_head_t *) pmboxq->context1;
|
|
if (pdone_q)
|
|
wake_up_interruptible(pdone_q);
|
|
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
|
|
return;
|
|
}
|
|
|
|
|
|
/**
|
|
* lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
|
|
* @phba: Pointer to HBA context object.
|
|
* @pmb: Pointer to mailbox object.
|
|
*
|
|
* This function is the default mailbox completion handler. It
|
|
* frees the memory resources associated with the completed mailbox
|
|
* command. If the completed command is a REG_LOGIN mailbox command,
|
|
* this function will issue a UREG_LOGIN to re-claim the RPI.
|
|
**/
|
|
void
|
|
lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
|
|
{
|
|
struct lpfc_dmabuf *mp;
|
|
uint16_t rpi, vpi;
|
|
int rc;
|
|
struct lpfc_vport *vport = pmb->vport;
|
|
|
|
mp = (struct lpfc_dmabuf *) (pmb->context1);
|
|
|
|
if (mp) {
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
}
|
|
|
|
if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) &&
|
|
(phba->sli_rev == LPFC_SLI_REV4))
|
|
lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi);
|
|
|
|
/*
|
|
* If a REG_LOGIN succeeded after node is destroyed or node
|
|
* is in re-discovery driver need to cleanup the RPI.
|
|
*/
|
|
if (!(phba->pport->load_flag & FC_UNLOADING) &&
|
|
pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
|
|
!pmb->u.mb.mbxStatus) {
|
|
rpi = pmb->u.mb.un.varWords[0];
|
|
vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base;
|
|
lpfc_unreg_login(phba, vpi, rpi, pmb);
|
|
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
|
|
if (rc != MBX_NOT_FINISHED)
|
|
return;
|
|
}
|
|
|
|
/* Unreg VPI, if the REG_VPI succeed after VLink failure */
|
|
if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
|
|
!(phba->pport->load_flag & FC_UNLOADING) &&
|
|
!pmb->u.mb.mbxStatus) {
|
|
lpfc_unreg_vpi(phba, pmb->u.mb.un.varRegVpi.vpi, pmb);
|
|
pmb->vport = vport;
|
|
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
|
|
if (rc != MBX_NOT_FINISHED)
|
|
return;
|
|
}
|
|
|
|
if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
|
|
lpfc_sli4_mbox_cmd_free(phba, pmb);
|
|
else
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called with no lock held. This function processes all
|
|
* the completed mailbox commands and gives it to upper layers. The interrupt
|
|
* service routine processes mailbox completion interrupt and adds completed
|
|
* mailbox commands to the mboxq_cmpl queue and signals the worker thread.
|
|
* Worker thread call lpfc_sli_handle_mb_event, which will return the
|
|
* completed mailbox commands in mboxq_cmpl queue to the upper layers. This
|
|
* function returns the mailbox commands to the upper layer by calling the
|
|
* completion handler function of each mailbox.
|
|
**/
|
|
int
|
|
lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
|
|
{
|
|
MAILBOX_t *pmbox;
|
|
LPFC_MBOXQ_t *pmb;
|
|
int rc;
|
|
LIST_HEAD(cmplq);
|
|
|
|
phba->sli.slistat.mbox_event++;
|
|
|
|
/* Get all completed mailboxe buffers into the cmplq */
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Get a Mailbox buffer to setup mailbox commands for callback */
|
|
do {
|
|
list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
|
|
if (pmb == NULL)
|
|
break;
|
|
|
|
pmbox = &pmb->u.mb;
|
|
|
|
if (pmbox->mbxCommand != MBX_HEARTBEAT) {
|
|
if (pmb->vport) {
|
|
lpfc_debugfs_disc_trc(pmb->vport,
|
|
LPFC_DISC_TRC_MBOX_VPORT,
|
|
"MBOX cmpl vport: cmd:x%x mb:x%x x%x",
|
|
(uint32_t)pmbox->mbxCommand,
|
|
pmbox->un.varWords[0],
|
|
pmbox->un.varWords[1]);
|
|
}
|
|
else {
|
|
lpfc_debugfs_disc_trc(phba->pport,
|
|
LPFC_DISC_TRC_MBOX,
|
|
"MBOX cmpl: cmd:x%x mb:x%x x%x",
|
|
(uint32_t)pmbox->mbxCommand,
|
|
pmbox->un.varWords[0],
|
|
pmbox->un.varWords[1]);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* It is a fatal error if unknown mbox command completion.
|
|
*/
|
|
if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
|
|
MBX_SHUTDOWN) {
|
|
/* Unknown mailbox command compl */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"(%d):0323 Unknown Mailbox command "
|
|
"x%x (x%x) Cmpl\n",
|
|
pmb->vport ? pmb->vport->vpi : 0,
|
|
pmbox->mbxCommand,
|
|
lpfc_sli4_mbox_opcode_get(phba, pmb));
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
phba->work_hs = HS_FFER3;
|
|
lpfc_handle_eratt(phba);
|
|
continue;
|
|
}
|
|
|
|
if (pmbox->mbxStatus) {
|
|
phba->sli.slistat.mbox_stat_err++;
|
|
if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
|
|
/* Mbox cmd cmpl error - RETRYing */
|
|
lpfc_printf_log(phba, KERN_INFO,
|
|
LOG_MBOX | LOG_SLI,
|
|
"(%d):0305 Mbox cmd cmpl "
|
|
"error - RETRYing Data: x%x "
|
|
"(x%x) x%x x%x x%x\n",
|
|
pmb->vport ? pmb->vport->vpi :0,
|
|
pmbox->mbxCommand,
|
|
lpfc_sli4_mbox_opcode_get(phba,
|
|
pmb),
|
|
pmbox->mbxStatus,
|
|
pmbox->un.varWords[0],
|
|
pmb->vport->port_state);
|
|
pmbox->mbxStatus = 0;
|
|
pmbox->mbxOwner = OWN_HOST;
|
|
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
|
|
if (rc != MBX_NOT_FINISHED)
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/* Mailbox cmd <cmd> Cmpl <cmpl> */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
|
|
"(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
|
|
"Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
|
|
pmb->vport ? pmb->vport->vpi : 0,
|
|
pmbox->mbxCommand,
|
|
lpfc_sli4_mbox_opcode_get(phba, pmb),
|
|
pmb->mbox_cmpl,
|
|
*((uint32_t *) pmbox),
|
|
pmbox->un.varWords[0],
|
|
pmbox->un.varWords[1],
|
|
pmbox->un.varWords[2],
|
|
pmbox->un.varWords[3],
|
|
pmbox->un.varWords[4],
|
|
pmbox->un.varWords[5],
|
|
pmbox->un.varWords[6],
|
|
pmbox->un.varWords[7]);
|
|
|
|
if (pmb->mbox_cmpl)
|
|
pmb->mbox_cmpl(phba,pmb);
|
|
} while (1);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_get_buff - Get the buffer associated with the buffer tag
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @tag: buffer tag.
|
|
*
|
|
* This function is called with no lock held. When QUE_BUFTAG_BIT bit
|
|
* is set in the tag the buffer is posted for a particular exchange,
|
|
* the function will return the buffer without replacing the buffer.
|
|
* If the buffer is for unsolicited ELS or CT traffic, this function
|
|
* returns the buffer and also posts another buffer to the firmware.
|
|
**/
|
|
static struct lpfc_dmabuf *
|
|
lpfc_sli_get_buff(struct lpfc_hba *phba,
|
|
struct lpfc_sli_ring *pring,
|
|
uint32_t tag)
|
|
{
|
|
struct hbq_dmabuf *hbq_entry;
|
|
|
|
if (tag & QUE_BUFTAG_BIT)
|
|
return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
|
|
hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
|
|
if (!hbq_entry)
|
|
return NULL;
|
|
return &hbq_entry->dbuf;
|
|
}
|
|
|
|
/**
|
|
* lpfc_complete_unsol_iocb - Complete an unsolicited sequence
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @saveq: Pointer to the iocbq struct representing the sequence starting frame.
|
|
* @fch_r_ctl: the r_ctl for the first frame of the sequence.
|
|
* @fch_type: the type for the first frame of the sequence.
|
|
*
|
|
* This function is called with no lock held. This function uses the r_ctl and
|
|
* type of the received sequence to find the correct callback function to call
|
|
* to process the sequence.
|
|
**/
|
|
static int
|
|
lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
|
|
uint32_t fch_type)
|
|
{
|
|
int i;
|
|
|
|
/* unSolicited Responses */
|
|
if (pring->prt[0].profile) {
|
|
if (pring->prt[0].lpfc_sli_rcv_unsol_event)
|
|
(pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
|
|
saveq);
|
|
return 1;
|
|
}
|
|
/* We must search, based on rctl / type
|
|
for the right routine */
|
|
for (i = 0; i < pring->num_mask; i++) {
|
|
if ((pring->prt[i].rctl == fch_r_ctl) &&
|
|
(pring->prt[i].type == fch_type)) {
|
|
if (pring->prt[i].lpfc_sli_rcv_unsol_event)
|
|
(pring->prt[i].lpfc_sli_rcv_unsol_event)
|
|
(phba, pring, saveq);
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @saveq: Pointer to the unsolicited iocb.
|
|
*
|
|
* This function is called with no lock held by the ring event handler
|
|
* when there is an unsolicited iocb posted to the response ring by the
|
|
* firmware. This function gets the buffer associated with the iocbs
|
|
* and calls the event handler for the ring. This function handles both
|
|
* qring buffers and hbq buffers.
|
|
* When the function returns 1 the caller can free the iocb object otherwise
|
|
* upper layer functions will free the iocb objects.
|
|
**/
|
|
static int
|
|
lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *saveq)
|
|
{
|
|
IOCB_t * irsp;
|
|
WORD5 * w5p;
|
|
uint32_t Rctl, Type;
|
|
uint32_t match;
|
|
struct lpfc_iocbq *iocbq;
|
|
struct lpfc_dmabuf *dmzbuf;
|
|
|
|
match = 0;
|
|
irsp = &(saveq->iocb);
|
|
|
|
if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
|
|
if (pring->lpfc_sli_rcv_async_status)
|
|
pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
|
|
else
|
|
lpfc_printf_log(phba,
|
|
KERN_WARNING,
|
|
LOG_SLI,
|
|
"0316 Ring %d handler: unexpected "
|
|
"ASYNC_STATUS iocb received evt_code "
|
|
"0x%x\n",
|
|
pring->ringno,
|
|
irsp->un.asyncstat.evt_code);
|
|
return 1;
|
|
}
|
|
|
|
if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
|
|
(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
|
|
if (irsp->ulpBdeCount > 0) {
|
|
dmzbuf = lpfc_sli_get_buff(phba, pring,
|
|
irsp->un.ulpWord[3]);
|
|
lpfc_in_buf_free(phba, dmzbuf);
|
|
}
|
|
|
|
if (irsp->ulpBdeCount > 1) {
|
|
dmzbuf = lpfc_sli_get_buff(phba, pring,
|
|
irsp->unsli3.sli3Words[3]);
|
|
lpfc_in_buf_free(phba, dmzbuf);
|
|
}
|
|
|
|
if (irsp->ulpBdeCount > 2) {
|
|
dmzbuf = lpfc_sli_get_buff(phba, pring,
|
|
irsp->unsli3.sli3Words[7]);
|
|
lpfc_in_buf_free(phba, dmzbuf);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
|
|
if (irsp->ulpBdeCount != 0) {
|
|
saveq->context2 = lpfc_sli_get_buff(phba, pring,
|
|
irsp->un.ulpWord[3]);
|
|
if (!saveq->context2)
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_SLI,
|
|
"0341 Ring %d Cannot find buffer for "
|
|
"an unsolicited iocb. tag 0x%x\n",
|
|
pring->ringno,
|
|
irsp->un.ulpWord[3]);
|
|
}
|
|
if (irsp->ulpBdeCount == 2) {
|
|
saveq->context3 = lpfc_sli_get_buff(phba, pring,
|
|
irsp->unsli3.sli3Words[7]);
|
|
if (!saveq->context3)
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_SLI,
|
|
"0342 Ring %d Cannot find buffer for an"
|
|
" unsolicited iocb. tag 0x%x\n",
|
|
pring->ringno,
|
|
irsp->unsli3.sli3Words[7]);
|
|
}
|
|
list_for_each_entry(iocbq, &saveq->list, list) {
|
|
irsp = &(iocbq->iocb);
|
|
if (irsp->ulpBdeCount != 0) {
|
|
iocbq->context2 = lpfc_sli_get_buff(phba, pring,
|
|
irsp->un.ulpWord[3]);
|
|
if (!iocbq->context2)
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_SLI,
|
|
"0343 Ring %d Cannot find "
|
|
"buffer for an unsolicited iocb"
|
|
". tag 0x%x\n", pring->ringno,
|
|
irsp->un.ulpWord[3]);
|
|
}
|
|
if (irsp->ulpBdeCount == 2) {
|
|
iocbq->context3 = lpfc_sli_get_buff(phba, pring,
|
|
irsp->unsli3.sli3Words[7]);
|
|
if (!iocbq->context3)
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_SLI,
|
|
"0344 Ring %d Cannot find "
|
|
"buffer for an unsolicited "
|
|
"iocb. tag 0x%x\n",
|
|
pring->ringno,
|
|
irsp->unsli3.sli3Words[7]);
|
|
}
|
|
}
|
|
}
|
|
if (irsp->ulpBdeCount != 0 &&
|
|
(irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
|
|
irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
|
|
int found = 0;
|
|
|
|
/* search continue save q for same XRI */
|
|
list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
|
|
if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) {
|
|
list_add_tail(&saveq->list, &iocbq->list);
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (!found)
|
|
list_add_tail(&saveq->clist,
|
|
&pring->iocb_continue_saveq);
|
|
if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
|
|
list_del_init(&iocbq->clist);
|
|
saveq = iocbq;
|
|
irsp = &(saveq->iocb);
|
|
} else
|
|
return 0;
|
|
}
|
|
if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
|
|
(irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
|
|
(irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
|
|
Rctl = FC_RCTL_ELS_REQ;
|
|
Type = FC_TYPE_ELS;
|
|
} else {
|
|
w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
|
|
Rctl = w5p->hcsw.Rctl;
|
|
Type = w5p->hcsw.Type;
|
|
|
|
/* Firmware Workaround */
|
|
if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
|
|
(irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
|
|
irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
|
|
Rctl = FC_RCTL_ELS_REQ;
|
|
Type = FC_TYPE_ELS;
|
|
w5p->hcsw.Rctl = Rctl;
|
|
w5p->hcsw.Type = Type;
|
|
}
|
|
}
|
|
|
|
if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"0313 Ring %d handler: unexpected Rctl x%x "
|
|
"Type x%x received\n",
|
|
pring->ringno, Rctl, Type);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @prspiocb: Pointer to response iocb object.
|
|
*
|
|
* This function looks up the iocb_lookup table to get the command iocb
|
|
* corresponding to the given response iocb using the iotag of the
|
|
* response iocb. This function is called with the hbalock held.
|
|
* This function returns the command iocb object if it finds the command
|
|
* iocb else returns NULL.
|
|
**/
|
|
static struct lpfc_iocbq *
|
|
lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
|
|
struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *prspiocb)
|
|
{
|
|
struct lpfc_iocbq *cmd_iocb = NULL;
|
|
uint16_t iotag;
|
|
|
|
iotag = prspiocb->iocb.ulpIoTag;
|
|
|
|
if (iotag != 0 && iotag <= phba->sli.last_iotag) {
|
|
cmd_iocb = phba->sli.iocbq_lookup[iotag];
|
|
list_del_init(&cmd_iocb->list);
|
|
pring->txcmplq_cnt--;
|
|
return cmd_iocb;
|
|
}
|
|
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0317 iotag x%x is out off "
|
|
"range: max iotag x%x wd0 x%x\n",
|
|
iotag, phba->sli.last_iotag,
|
|
*(((uint32_t *) &prspiocb->iocb) + 7));
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @iotag: IOCB tag.
|
|
*
|
|
* This function looks up the iocb_lookup table to get the command iocb
|
|
* corresponding to the given iotag. This function is called with the
|
|
* hbalock held.
|
|
* This function returns the command iocb object if it finds the command
|
|
* iocb else returns NULL.
|
|
**/
|
|
static struct lpfc_iocbq *
|
|
lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
|
|
struct lpfc_sli_ring *pring, uint16_t iotag)
|
|
{
|
|
struct lpfc_iocbq *cmd_iocb;
|
|
|
|
if (iotag != 0 && iotag <= phba->sli.last_iotag) {
|
|
cmd_iocb = phba->sli.iocbq_lookup[iotag];
|
|
list_del_init(&cmd_iocb->list);
|
|
pring->txcmplq_cnt--;
|
|
return cmd_iocb;
|
|
}
|
|
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0372 iotag x%x is out off range: max iotag (x%x)\n",
|
|
iotag, phba->sli.last_iotag);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_process_sol_iocb - process solicited iocb completion
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @saveq: Pointer to the response iocb to be processed.
|
|
*
|
|
* This function is called by the ring event handler for non-fcp
|
|
* rings when there is a new response iocb in the response ring.
|
|
* The caller is not required to hold any locks. This function
|
|
* gets the command iocb associated with the response iocb and
|
|
* calls the completion handler for the command iocb. If there
|
|
* is no completion handler, the function will free the resources
|
|
* associated with command iocb. If the response iocb is for
|
|
* an already aborted command iocb, the status of the completion
|
|
* is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
|
|
* This function always returns 1.
|
|
**/
|
|
static int
|
|
lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *saveq)
|
|
{
|
|
struct lpfc_iocbq *cmdiocbp;
|
|
int rc = 1;
|
|
unsigned long iflag;
|
|
|
|
/* Based on the iotag field, get the cmd IOCB from the txcmplq */
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
|
|
if (cmdiocbp) {
|
|
if (cmdiocbp->iocb_cmpl) {
|
|
/*
|
|
* If an ELS command failed send an event to mgmt
|
|
* application.
|
|
*/
|
|
if (saveq->iocb.ulpStatus &&
|
|
(pring->ringno == LPFC_ELS_RING) &&
|
|
(cmdiocbp->iocb.ulpCommand ==
|
|
CMD_ELS_REQUEST64_CR))
|
|
lpfc_send_els_failure_event(phba,
|
|
cmdiocbp, saveq);
|
|
|
|
/*
|
|
* Post all ELS completions to the worker thread.
|
|
* All other are passed to the completion callback.
|
|
*/
|
|
if (pring->ringno == LPFC_ELS_RING) {
|
|
if ((phba->sli_rev < LPFC_SLI_REV4) &&
|
|
(cmdiocbp->iocb_flag &
|
|
LPFC_DRIVER_ABORTED)) {
|
|
spin_lock_irqsave(&phba->hbalock,
|
|
iflag);
|
|
cmdiocbp->iocb_flag &=
|
|
~LPFC_DRIVER_ABORTED;
|
|
spin_unlock_irqrestore(&phba->hbalock,
|
|
iflag);
|
|
saveq->iocb.ulpStatus =
|
|
IOSTAT_LOCAL_REJECT;
|
|
saveq->iocb.un.ulpWord[4] =
|
|
IOERR_SLI_ABORTED;
|
|
|
|
/* Firmware could still be in progress
|
|
* of DMAing payload, so don't free data
|
|
* buffer till after a hbeat.
|
|
*/
|
|
spin_lock_irqsave(&phba->hbalock,
|
|
iflag);
|
|
saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
|
|
spin_unlock_irqrestore(&phba->hbalock,
|
|
iflag);
|
|
}
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
if (saveq->iocb_flag &
|
|
LPFC_EXCHANGE_BUSY) {
|
|
/* Set cmdiocb flag for the
|
|
* exchange busy so sgl (xri)
|
|
* will not be released until
|
|
* the abort xri is received
|
|
* from hba.
|
|
*/
|
|
spin_lock_irqsave(
|
|
&phba->hbalock, iflag);
|
|
cmdiocbp->iocb_flag |=
|
|
LPFC_EXCHANGE_BUSY;
|
|
spin_unlock_irqrestore(
|
|
&phba->hbalock, iflag);
|
|
}
|
|
if (cmdiocbp->iocb_flag &
|
|
LPFC_DRIVER_ABORTED) {
|
|
/*
|
|
* Clear LPFC_DRIVER_ABORTED
|
|
* bit in case it was driver
|
|
* initiated abort.
|
|
*/
|
|
spin_lock_irqsave(
|
|
&phba->hbalock, iflag);
|
|
cmdiocbp->iocb_flag &=
|
|
~LPFC_DRIVER_ABORTED;
|
|
spin_unlock_irqrestore(
|
|
&phba->hbalock, iflag);
|
|
cmdiocbp->iocb.ulpStatus =
|
|
IOSTAT_LOCAL_REJECT;
|
|
cmdiocbp->iocb.un.ulpWord[4] =
|
|
IOERR_ABORT_REQUESTED;
|
|
/*
|
|
* For SLI4, irsiocb contains
|
|
* NO_XRI in sli_xritag, it
|
|
* shall not affect releasing
|
|
* sgl (xri) process.
|
|
*/
|
|
saveq->iocb.ulpStatus =
|
|
IOSTAT_LOCAL_REJECT;
|
|
saveq->iocb.un.ulpWord[4] =
|
|
IOERR_SLI_ABORTED;
|
|
spin_lock_irqsave(
|
|
&phba->hbalock, iflag);
|
|
saveq->iocb_flag |=
|
|
LPFC_DELAY_MEM_FREE;
|
|
spin_unlock_irqrestore(
|
|
&phba->hbalock, iflag);
|
|
}
|
|
}
|
|
}
|
|
(cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
|
|
} else
|
|
lpfc_sli_release_iocbq(phba, cmdiocbp);
|
|
} else {
|
|
/*
|
|
* Unknown initiating command based on the response iotag.
|
|
* This could be the case on the ELS ring because of
|
|
* lpfc_els_abort().
|
|
*/
|
|
if (pring->ringno != LPFC_ELS_RING) {
|
|
/*
|
|
* Ring <ringno> handler: unexpected completion IoTag
|
|
* <IoTag>
|
|
*/
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"0322 Ring %d handler: "
|
|
"unexpected completion IoTag x%x "
|
|
"Data: x%x x%x x%x x%x\n",
|
|
pring->ringno,
|
|
saveq->iocb.ulpIoTag,
|
|
saveq->iocb.ulpStatus,
|
|
saveq->iocb.un.ulpWord[4],
|
|
saveq->iocb.ulpCommand,
|
|
saveq->iocb.ulpContext);
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_rsp_pointers_error - Response ring pointer error handler
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
*
|
|
* This function is called from the iocb ring event handlers when
|
|
* put pointer is ahead of the get pointer for a ring. This function signal
|
|
* an error attention condition to the worker thread and the worker
|
|
* thread will transition the HBA to offline state.
|
|
**/
|
|
static void
|
|
lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
|
|
{
|
|
struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
|
|
/*
|
|
* Ring <ringno> handler: portRspPut <portRspPut> is bigger than
|
|
* rsp ring <portRspMax>
|
|
*/
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0312 Ring %d handler: portRspPut %d "
|
|
"is bigger than rsp ring %d\n",
|
|
pring->ringno, le32_to_cpu(pgp->rspPutInx),
|
|
pring->numRiocb);
|
|
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
|
|
/*
|
|
* All error attention handlers are posted to
|
|
* worker thread
|
|
*/
|
|
phba->work_ha |= HA_ERATT;
|
|
phba->work_hs = HS_FFER3;
|
|
|
|
lpfc_worker_wake_up(phba);
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_poll_eratt - Error attention polling timer timeout handler
|
|
* @ptr: Pointer to address of HBA context object.
|
|
*
|
|
* This function is invoked by the Error Attention polling timer when the
|
|
* timer times out. It will check the SLI Error Attention register for
|
|
* possible attention events. If so, it will post an Error Attention event
|
|
* and wake up worker thread to process it. Otherwise, it will set up the
|
|
* Error Attention polling timer for the next poll.
|
|
**/
|
|
void lpfc_poll_eratt(unsigned long ptr)
|
|
{
|
|
struct lpfc_hba *phba;
|
|
uint32_t eratt = 0;
|
|
|
|
phba = (struct lpfc_hba *)ptr;
|
|
|
|
/* Check chip HA register for error event */
|
|
eratt = lpfc_sli_check_eratt(phba);
|
|
|
|
if (eratt)
|
|
/* Tell the worker thread there is work to do */
|
|
lpfc_worker_wake_up(phba);
|
|
else
|
|
/* Restart the timer for next eratt poll */
|
|
mod_timer(&phba->eratt_poll, jiffies +
|
|
HZ * LPFC_ERATT_POLL_INTERVAL);
|
|
return;
|
|
}
|
|
|
|
|
|
/**
|
|
* lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @mask: Host attention register mask for this ring.
|
|
*
|
|
* This function is called from the interrupt context when there is a ring
|
|
* event for the fcp ring. The caller does not hold any lock.
|
|
* The function processes each response iocb in the response ring until it
|
|
* finds an iocb with LE bit set and chains all the iocbs upto the iocb with
|
|
* LE bit set. The function will call the completion handler of the command iocb
|
|
* if the response iocb indicates a completion for a command iocb or it is
|
|
* an abort completion. The function will call lpfc_sli_process_unsol_iocb
|
|
* function if this is an unsolicited iocb.
|
|
* This routine presumes LPFC_FCP_RING handling and doesn't bother
|
|
* to check it explicitly.
|
|
*/
|
|
int
|
|
lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
|
|
struct lpfc_sli_ring *pring, uint32_t mask)
|
|
{
|
|
struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
|
|
IOCB_t *irsp = NULL;
|
|
IOCB_t *entry = NULL;
|
|
struct lpfc_iocbq *cmdiocbq = NULL;
|
|
struct lpfc_iocbq rspiocbq;
|
|
uint32_t status;
|
|
uint32_t portRspPut, portRspMax;
|
|
int rc = 1;
|
|
lpfc_iocb_type type;
|
|
unsigned long iflag;
|
|
uint32_t rsp_cmpl = 0;
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
pring->stats.iocb_event++;
|
|
|
|
/*
|
|
* The next available response entry should never exceed the maximum
|
|
* entries. If it does, treat it as an adapter hardware error.
|
|
*/
|
|
portRspMax = pring->numRiocb;
|
|
portRspPut = le32_to_cpu(pgp->rspPutInx);
|
|
if (unlikely(portRspPut >= portRspMax)) {
|
|
lpfc_sli_rsp_pointers_error(phba, pring);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return 1;
|
|
}
|
|
if (phba->fcp_ring_in_use) {
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return 1;
|
|
} else
|
|
phba->fcp_ring_in_use = 1;
|
|
|
|
rmb();
|
|
while (pring->rspidx != portRspPut) {
|
|
/*
|
|
* Fetch an entry off the ring and copy it into a local data
|
|
* structure. The copy involves a byte-swap since the
|
|
* network byte order and pci byte orders are different.
|
|
*/
|
|
entry = lpfc_resp_iocb(phba, pring);
|
|
phba->last_completion_time = jiffies;
|
|
|
|
if (++pring->rspidx >= portRspMax)
|
|
pring->rspidx = 0;
|
|
|
|
lpfc_sli_pcimem_bcopy((uint32_t *) entry,
|
|
(uint32_t *) &rspiocbq.iocb,
|
|
phba->iocb_rsp_size);
|
|
INIT_LIST_HEAD(&(rspiocbq.list));
|
|
irsp = &rspiocbq.iocb;
|
|
|
|
type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
|
|
pring->stats.iocb_rsp++;
|
|
rsp_cmpl++;
|
|
|
|
if (unlikely(irsp->ulpStatus)) {
|
|
/*
|
|
* If resource errors reported from HBA, reduce
|
|
* queuedepths of the SCSI device.
|
|
*/
|
|
if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
|
|
(irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
phba->lpfc_rampdown_queue_depth(phba);
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
}
|
|
|
|
/* Rsp ring <ringno> error: IOCB */
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"0336 Rsp Ring %d error: IOCB Data: "
|
|
"x%x x%x x%x x%x x%x x%x x%x x%x\n",
|
|
pring->ringno,
|
|
irsp->un.ulpWord[0],
|
|
irsp->un.ulpWord[1],
|
|
irsp->un.ulpWord[2],
|
|
irsp->un.ulpWord[3],
|
|
irsp->un.ulpWord[4],
|
|
irsp->un.ulpWord[5],
|
|
*(uint32_t *)&irsp->un1,
|
|
*((uint32_t *)&irsp->un1 + 1));
|
|
}
|
|
|
|
switch (type) {
|
|
case LPFC_ABORT_IOCB:
|
|
case LPFC_SOL_IOCB:
|
|
/*
|
|
* Idle exchange closed via ABTS from port. No iocb
|
|
* resources need to be recovered.
|
|
*/
|
|
if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"0333 IOCB cmd 0x%x"
|
|
" processed. Skipping"
|
|
" completion\n",
|
|
irsp->ulpCommand);
|
|
break;
|
|
}
|
|
|
|
cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
|
|
&rspiocbq);
|
|
if (unlikely(!cmdiocbq))
|
|
break;
|
|
if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
|
|
cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
|
|
if (cmdiocbq->iocb_cmpl) {
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
(cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
|
|
&rspiocbq);
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
}
|
|
break;
|
|
case LPFC_UNSOL_IOCB:
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
break;
|
|
default:
|
|
if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
|
|
char adaptermsg[LPFC_MAX_ADPTMSG];
|
|
memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
|
|
memcpy(&adaptermsg[0], (uint8_t *) irsp,
|
|
MAX_MSG_DATA);
|
|
dev_warn(&((phba->pcidev)->dev),
|
|
"lpfc%d: %s\n",
|
|
phba->brd_no, adaptermsg);
|
|
} else {
|
|
/* Unknown IOCB command */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0334 Unknown IOCB command "
|
|
"Data: x%x, x%x x%x x%x x%x\n",
|
|
type, irsp->ulpCommand,
|
|
irsp->ulpStatus,
|
|
irsp->ulpIoTag,
|
|
irsp->ulpContext);
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* The response IOCB has been processed. Update the ring
|
|
* pointer in SLIM. If the port response put pointer has not
|
|
* been updated, sync the pgp->rspPutInx and fetch the new port
|
|
* response put pointer.
|
|
*/
|
|
writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
|
|
|
|
if (pring->rspidx == portRspPut)
|
|
portRspPut = le32_to_cpu(pgp->rspPutInx);
|
|
}
|
|
|
|
if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
|
|
pring->stats.iocb_rsp_full++;
|
|
status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
|
|
writel(status, phba->CAregaddr);
|
|
readl(phba->CAregaddr);
|
|
}
|
|
if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
|
|
pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
|
|
pring->stats.iocb_cmd_empty++;
|
|
|
|
/* Force update of the local copy of cmdGetInx */
|
|
pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
|
|
lpfc_sli_resume_iocb(phba, pring);
|
|
|
|
if ((pring->lpfc_sli_cmd_available))
|
|
(pring->lpfc_sli_cmd_available) (phba, pring);
|
|
|
|
}
|
|
|
|
phba->fcp_ring_in_use = 0;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @rspiocbp: Pointer to driver response IOCB object.
|
|
*
|
|
* This function is called from the worker thread when there is a slow-path
|
|
* response IOCB to process. This function chains all the response iocbs until
|
|
* seeing the iocb with the LE bit set. The function will call
|
|
* lpfc_sli_process_sol_iocb function if the response iocb indicates a
|
|
* completion of a command iocb. The function will call the
|
|
* lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
|
|
* The function frees the resources or calls the completion handler if this
|
|
* iocb is an abort completion. The function returns NULL when the response
|
|
* iocb has the LE bit set and all the chained iocbs are processed, otherwise
|
|
* this function shall chain the iocb on to the iocb_continueq and return the
|
|
* response iocb passed in.
|
|
**/
|
|
static struct lpfc_iocbq *
|
|
lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *rspiocbp)
|
|
{
|
|
struct lpfc_iocbq *saveq;
|
|
struct lpfc_iocbq *cmdiocbp;
|
|
struct lpfc_iocbq *next_iocb;
|
|
IOCB_t *irsp = NULL;
|
|
uint32_t free_saveq;
|
|
uint8_t iocb_cmd_type;
|
|
lpfc_iocb_type type;
|
|
unsigned long iflag;
|
|
int rc;
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
/* First add the response iocb to the countinueq list */
|
|
list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
|
|
pring->iocb_continueq_cnt++;
|
|
|
|
/* Now, determine whetehr the list is completed for processing */
|
|
irsp = &rspiocbp->iocb;
|
|
if (irsp->ulpLe) {
|
|
/*
|
|
* By default, the driver expects to free all resources
|
|
* associated with this iocb completion.
|
|
*/
|
|
free_saveq = 1;
|
|
saveq = list_get_first(&pring->iocb_continueq,
|
|
struct lpfc_iocbq, list);
|
|
irsp = &(saveq->iocb);
|
|
list_del_init(&pring->iocb_continueq);
|
|
pring->iocb_continueq_cnt = 0;
|
|
|
|
pring->stats.iocb_rsp++;
|
|
|
|
/*
|
|
* If resource errors reported from HBA, reduce
|
|
* queuedepths of the SCSI device.
|
|
*/
|
|
if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
|
|
(irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
phba->lpfc_rampdown_queue_depth(phba);
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
}
|
|
|
|
if (irsp->ulpStatus) {
|
|
/* Rsp ring <ringno> error: IOCB */
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"0328 Rsp Ring %d error: "
|
|
"IOCB Data: "
|
|
"x%x x%x x%x x%x "
|
|
"x%x x%x x%x x%x "
|
|
"x%x x%x x%x x%x "
|
|
"x%x x%x x%x x%x\n",
|
|
pring->ringno,
|
|
irsp->un.ulpWord[0],
|
|
irsp->un.ulpWord[1],
|
|
irsp->un.ulpWord[2],
|
|
irsp->un.ulpWord[3],
|
|
irsp->un.ulpWord[4],
|
|
irsp->un.ulpWord[5],
|
|
*(((uint32_t *) irsp) + 6),
|
|
*(((uint32_t *) irsp) + 7),
|
|
*(((uint32_t *) irsp) + 8),
|
|
*(((uint32_t *) irsp) + 9),
|
|
*(((uint32_t *) irsp) + 10),
|
|
*(((uint32_t *) irsp) + 11),
|
|
*(((uint32_t *) irsp) + 12),
|
|
*(((uint32_t *) irsp) + 13),
|
|
*(((uint32_t *) irsp) + 14),
|
|
*(((uint32_t *) irsp) + 15));
|
|
}
|
|
|
|
/*
|
|
* Fetch the IOCB command type and call the correct completion
|
|
* routine. Solicited and Unsolicited IOCBs on the ELS ring
|
|
* get freed back to the lpfc_iocb_list by the discovery
|
|
* kernel thread.
|
|
*/
|
|
iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
|
|
type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
|
|
switch (type) {
|
|
case LPFC_SOL_IOCB:
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
break;
|
|
|
|
case LPFC_UNSOL_IOCB:
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
if (!rc)
|
|
free_saveq = 0;
|
|
break;
|
|
|
|
case LPFC_ABORT_IOCB:
|
|
cmdiocbp = NULL;
|
|
if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
|
|
cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
|
|
saveq);
|
|
if (cmdiocbp) {
|
|
/* Call the specified completion routine */
|
|
if (cmdiocbp->iocb_cmpl) {
|
|
spin_unlock_irqrestore(&phba->hbalock,
|
|
iflag);
|
|
(cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
|
|
saveq);
|
|
spin_lock_irqsave(&phba->hbalock,
|
|
iflag);
|
|
} else
|
|
__lpfc_sli_release_iocbq(phba,
|
|
cmdiocbp);
|
|
}
|
|
break;
|
|
|
|
case LPFC_UNKNOWN_IOCB:
|
|
if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
|
|
char adaptermsg[LPFC_MAX_ADPTMSG];
|
|
memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
|
|
memcpy(&adaptermsg[0], (uint8_t *)irsp,
|
|
MAX_MSG_DATA);
|
|
dev_warn(&((phba->pcidev)->dev),
|
|
"lpfc%d: %s\n",
|
|
phba->brd_no, adaptermsg);
|
|
} else {
|
|
/* Unknown IOCB command */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0335 Unknown IOCB "
|
|
"command Data: x%x "
|
|
"x%x x%x x%x\n",
|
|
irsp->ulpCommand,
|
|
irsp->ulpStatus,
|
|
irsp->ulpIoTag,
|
|
irsp->ulpContext);
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (free_saveq) {
|
|
list_for_each_entry_safe(rspiocbp, next_iocb,
|
|
&saveq->list, list) {
|
|
list_del(&rspiocbp->list);
|
|
__lpfc_sli_release_iocbq(phba, rspiocbp);
|
|
}
|
|
__lpfc_sli_release_iocbq(phba, saveq);
|
|
}
|
|
rspiocbp = NULL;
|
|
}
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return rspiocbp;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @mask: Host attention register mask for this ring.
|
|
*
|
|
* This routine wraps the actual slow_ring event process routine from the
|
|
* API jump table function pointer from the lpfc_hba struct.
|
|
**/
|
|
void
|
|
lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
|
|
struct lpfc_sli_ring *pring, uint32_t mask)
|
|
{
|
|
phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @mask: Host attention register mask for this ring.
|
|
*
|
|
* This function is called from the worker thread when there is a ring event
|
|
* for non-fcp rings. The caller does not hold any lock. The function will
|
|
* remove each response iocb in the response ring and calls the handle
|
|
* response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
|
|
**/
|
|
static void
|
|
lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
|
|
struct lpfc_sli_ring *pring, uint32_t mask)
|
|
{
|
|
struct lpfc_pgp *pgp;
|
|
IOCB_t *entry;
|
|
IOCB_t *irsp = NULL;
|
|
struct lpfc_iocbq *rspiocbp = NULL;
|
|
uint32_t portRspPut, portRspMax;
|
|
unsigned long iflag;
|
|
uint32_t status;
|
|
|
|
pgp = &phba->port_gp[pring->ringno];
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
pring->stats.iocb_event++;
|
|
|
|
/*
|
|
* The next available response entry should never exceed the maximum
|
|
* entries. If it does, treat it as an adapter hardware error.
|
|
*/
|
|
portRspMax = pring->numRiocb;
|
|
portRspPut = le32_to_cpu(pgp->rspPutInx);
|
|
if (portRspPut >= portRspMax) {
|
|
/*
|
|
* Ring <ringno> handler: portRspPut <portRspPut> is bigger than
|
|
* rsp ring <portRspMax>
|
|
*/
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0303 Ring %d handler: portRspPut %d "
|
|
"is bigger than rsp ring %d\n",
|
|
pring->ringno, portRspPut, portRspMax);
|
|
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
|
|
phba->work_hs = HS_FFER3;
|
|
lpfc_handle_eratt(phba);
|
|
|
|
return;
|
|
}
|
|
|
|
rmb();
|
|
while (pring->rspidx != portRspPut) {
|
|
/*
|
|
* Build a completion list and call the appropriate handler.
|
|
* The process is to get the next available response iocb, get
|
|
* a free iocb from the list, copy the response data into the
|
|
* free iocb, insert to the continuation list, and update the
|
|
* next response index to slim. This process makes response
|
|
* iocb's in the ring available to DMA as fast as possible but
|
|
* pays a penalty for a copy operation. Since the iocb is
|
|
* only 32 bytes, this penalty is considered small relative to
|
|
* the PCI reads for register values and a slim write. When
|
|
* the ulpLe field is set, the entire Command has been
|
|
* received.
|
|
*/
|
|
entry = lpfc_resp_iocb(phba, pring);
|
|
|
|
phba->last_completion_time = jiffies;
|
|
rspiocbp = __lpfc_sli_get_iocbq(phba);
|
|
if (rspiocbp == NULL) {
|
|
printk(KERN_ERR "%s: out of buffers! Failing "
|
|
"completion.\n", __func__);
|
|
break;
|
|
}
|
|
|
|
lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
|
|
phba->iocb_rsp_size);
|
|
irsp = &rspiocbp->iocb;
|
|
|
|
if (++pring->rspidx >= portRspMax)
|
|
pring->rspidx = 0;
|
|
|
|
if (pring->ringno == LPFC_ELS_RING) {
|
|
lpfc_debugfs_slow_ring_trc(phba,
|
|
"IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
|
|
*(((uint32_t *) irsp) + 4),
|
|
*(((uint32_t *) irsp) + 6),
|
|
*(((uint32_t *) irsp) + 7));
|
|
}
|
|
|
|
writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
|
|
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
/* Handle the response IOCB */
|
|
rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
|
|
/*
|
|
* If the port response put pointer has not been updated, sync
|
|
* the pgp->rspPutInx in the MAILBOX_tand fetch the new port
|
|
* response put pointer.
|
|
*/
|
|
if (pring->rspidx == portRspPut) {
|
|
portRspPut = le32_to_cpu(pgp->rspPutInx);
|
|
}
|
|
} /* while (pring->rspidx != portRspPut) */
|
|
|
|
if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
|
|
/* At least one response entry has been freed */
|
|
pring->stats.iocb_rsp_full++;
|
|
/* SET RxRE_RSP in Chip Att register */
|
|
status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
|
|
writel(status, phba->CAregaddr);
|
|
readl(phba->CAregaddr); /* flush */
|
|
}
|
|
if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
|
|
pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
|
|
pring->stats.iocb_cmd_empty++;
|
|
|
|
/* Force update of the local copy of cmdGetInx */
|
|
pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
|
|
lpfc_sli_resume_iocb(phba, pring);
|
|
|
|
if ((pring->lpfc_sli_cmd_available))
|
|
(pring->lpfc_sli_cmd_available) (phba, pring);
|
|
|
|
}
|
|
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @mask: Host attention register mask for this ring.
|
|
*
|
|
* This function is called from the worker thread when there is a pending
|
|
* ELS response iocb on the driver internal slow-path response iocb worker
|
|
* queue. The caller does not hold any lock. The function will remove each
|
|
* response iocb from the response worker queue and calls the handle
|
|
* response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
|
|
**/
|
|
static void
|
|
lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
|
|
struct lpfc_sli_ring *pring, uint32_t mask)
|
|
{
|
|
struct lpfc_iocbq *irspiocbq;
|
|
struct hbq_dmabuf *dmabuf;
|
|
struct lpfc_cq_event *cq_event;
|
|
unsigned long iflag;
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
|
|
/* Get the response iocb from the head of work queue */
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
list_remove_head(&phba->sli4_hba.sp_queue_event,
|
|
cq_event, struct lpfc_cq_event, list);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
|
|
switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
|
|
case CQE_CODE_COMPL_WQE:
|
|
irspiocbq = container_of(cq_event, struct lpfc_iocbq,
|
|
cq_event);
|
|
/* Translate ELS WCQE to response IOCBQ */
|
|
irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
|
|
irspiocbq);
|
|
if (irspiocbq)
|
|
lpfc_sli_sp_handle_rspiocb(phba, pring,
|
|
irspiocbq);
|
|
break;
|
|
case CQE_CODE_RECEIVE:
|
|
dmabuf = container_of(cq_event, struct hbq_dmabuf,
|
|
cq_event);
|
|
lpfc_sli4_handle_received_buffer(phba, dmabuf);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
*
|
|
* This function aborts all iocbs in the given ring and frees all the iocb
|
|
* objects in txq. This function issues an abort iocb for all the iocb commands
|
|
* in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
|
|
* the return of this function. The caller is not required to hold any locks.
|
|
**/
|
|
void
|
|
lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
|
|
{
|
|
LIST_HEAD(completions);
|
|
struct lpfc_iocbq *iocb, *next_iocb;
|
|
|
|
if (pring->ringno == LPFC_ELS_RING) {
|
|
lpfc_fabric_abort_hba(phba);
|
|
}
|
|
|
|
/* Error everything on txq and txcmplq
|
|
* First do the txq.
|
|
*/
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_splice_init(&pring->txq, &completions);
|
|
pring->txq_cnt = 0;
|
|
|
|
/* Next issue ABTS for everything on the txcmplq */
|
|
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
|
|
lpfc_sli_issue_abort_iotag(phba, pring, iocb);
|
|
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Cancel all the IOCBs from the completions list */
|
|
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
|
|
IOERR_SLI_ABORTED);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function flushes all iocbs in the fcp ring and frees all the iocb
|
|
* objects in txq and txcmplq. This function will not issue abort iocbs
|
|
* for all the iocb commands in txcmplq, they will just be returned with
|
|
* IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
|
|
* slot has been permanently disabled.
|
|
**/
|
|
void
|
|
lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
|
|
{
|
|
LIST_HEAD(txq);
|
|
LIST_HEAD(txcmplq);
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_sli_ring *pring;
|
|
|
|
/* Currently, only one fcp ring */
|
|
pring = &psli->ring[psli->fcp_ring];
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
/* Retrieve everything on txq */
|
|
list_splice_init(&pring->txq, &txq);
|
|
pring->txq_cnt = 0;
|
|
|
|
/* Retrieve everything on the txcmplq */
|
|
list_splice_init(&pring->txcmplq, &txcmplq);
|
|
pring->txcmplq_cnt = 0;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Flush the txq */
|
|
lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
|
|
IOERR_SLI_DOWN);
|
|
|
|
/* Flush the txcmpq */
|
|
lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
|
|
IOERR_SLI_DOWN);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_brdready_s3 - Check for sli3 host ready status
|
|
* @phba: Pointer to HBA context object.
|
|
* @mask: Bit mask to be checked.
|
|
*
|
|
* This function reads the host status register and compares
|
|
* with the provided bit mask to check if HBA completed
|
|
* the restart. This function will wait in a loop for the
|
|
* HBA to complete restart. If the HBA does not restart within
|
|
* 15 iterations, the function will reset the HBA again. The
|
|
* function returns 1 when HBA fail to restart otherwise returns
|
|
* zero.
|
|
**/
|
|
static int
|
|
lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
|
|
{
|
|
uint32_t status;
|
|
int i = 0;
|
|
int retval = 0;
|
|
|
|
/* Read the HBA Host Status Register */
|
|
status = readl(phba->HSregaddr);
|
|
|
|
/*
|
|
* Check status register every 100ms for 5 retries, then every
|
|
* 500ms for 5, then every 2.5 sec for 5, then reset board and
|
|
* every 2.5 sec for 4.
|
|
* Break our of the loop if errors occurred during init.
|
|
*/
|
|
while (((status & mask) != mask) &&
|
|
!(status & HS_FFERM) &&
|
|
i++ < 20) {
|
|
|
|
if (i <= 5)
|
|
msleep(10);
|
|
else if (i <= 10)
|
|
msleep(500);
|
|
else
|
|
msleep(2500);
|
|
|
|
if (i == 15) {
|
|
/* Do post */
|
|
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
|
|
lpfc_sli_brdrestart(phba);
|
|
}
|
|
/* Read the HBA Host Status Register */
|
|
status = readl(phba->HSregaddr);
|
|
}
|
|
|
|
/* Check to see if any errors occurred during init */
|
|
if ((status & HS_FFERM) || (i >= 20)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2751 Adapter failed to restart, "
|
|
"status reg x%x, FW Data: A8 x%x AC x%x\n",
|
|
status,
|
|
readl(phba->MBslimaddr + 0xa8),
|
|
readl(phba->MBslimaddr + 0xac));
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
retval = 1;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_brdready_s4 - Check for sli4 host ready status
|
|
* @phba: Pointer to HBA context object.
|
|
* @mask: Bit mask to be checked.
|
|
*
|
|
* This function checks the host status register to check if HBA is
|
|
* ready. This function will wait in a loop for the HBA to be ready
|
|
* If the HBA is not ready , the function will will reset the HBA PCI
|
|
* function again. The function returns 1 when HBA fail to be ready
|
|
* otherwise returns zero.
|
|
**/
|
|
static int
|
|
lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
|
|
{
|
|
uint32_t status;
|
|
int retval = 0;
|
|
|
|
/* Read the HBA Host Status Register */
|
|
status = lpfc_sli4_post_status_check(phba);
|
|
|
|
if (status) {
|
|
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
|
|
lpfc_sli_brdrestart(phba);
|
|
status = lpfc_sli4_post_status_check(phba);
|
|
}
|
|
|
|
/* Check to see if any errors occurred during init */
|
|
if (status) {
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
retval = 1;
|
|
} else
|
|
phba->sli4_hba.intr_enable = 0;
|
|
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_brdready - Wrapper func for checking the hba readyness
|
|
* @phba: Pointer to HBA context object.
|
|
* @mask: Bit mask to be checked.
|
|
*
|
|
* This routine wraps the actual SLI3 or SLI4 hba readyness check routine
|
|
* from the API jump table function pointer from the lpfc_hba struct.
|
|
**/
|
|
int
|
|
lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
|
|
{
|
|
return phba->lpfc_sli_brdready(phba, mask);
|
|
}
|
|
|
|
#define BARRIER_TEST_PATTERN (0xdeadbeef)
|
|
|
|
/**
|
|
* lpfc_reset_barrier - Make HBA ready for HBA reset
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called before resetting an HBA. This
|
|
* function requests HBA to quiesce DMAs before a reset.
|
|
**/
|
|
void lpfc_reset_barrier(struct lpfc_hba *phba)
|
|
{
|
|
uint32_t __iomem *resp_buf;
|
|
uint32_t __iomem *mbox_buf;
|
|
volatile uint32_t mbox;
|
|
uint32_t hc_copy;
|
|
int i;
|
|
uint8_t hdrtype;
|
|
|
|
pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
|
|
if (hdrtype != 0x80 ||
|
|
(FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
|
|
FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
|
|
return;
|
|
|
|
/*
|
|
* Tell the other part of the chip to suspend temporarily all
|
|
* its DMA activity.
|
|
*/
|
|
resp_buf = phba->MBslimaddr;
|
|
|
|
/* Disable the error attention */
|
|
hc_copy = readl(phba->HCregaddr);
|
|
writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
phba->link_flag |= LS_IGNORE_ERATT;
|
|
|
|
if (readl(phba->HAregaddr) & HA_ERATT) {
|
|
/* Clear Chip error bit */
|
|
writel(HA_ERATT, phba->HAregaddr);
|
|
phba->pport->stopped = 1;
|
|
}
|
|
|
|
mbox = 0;
|
|
((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
|
|
((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
|
|
|
|
writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
|
|
mbox_buf = phba->MBslimaddr;
|
|
writel(mbox, mbox_buf);
|
|
|
|
for (i = 0;
|
|
readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
|
|
mdelay(1);
|
|
|
|
if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
|
|
if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
|
|
phba->pport->stopped)
|
|
goto restore_hc;
|
|
else
|
|
goto clear_errat;
|
|
}
|
|
|
|
((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
|
|
for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
|
|
mdelay(1);
|
|
|
|
clear_errat:
|
|
|
|
while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
|
|
mdelay(1);
|
|
|
|
if (readl(phba->HAregaddr) & HA_ERATT) {
|
|
writel(HA_ERATT, phba->HAregaddr);
|
|
phba->pport->stopped = 1;
|
|
}
|
|
|
|
restore_hc:
|
|
phba->link_flag &= ~LS_IGNORE_ERATT;
|
|
writel(hc_copy, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_brdkill - Issue a kill_board mailbox command
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function issues a kill_board mailbox command and waits for
|
|
* the error attention interrupt. This function is called for stopping
|
|
* the firmware processing. The caller is not required to hold any
|
|
* locks. This function calls lpfc_hba_down_post function to free
|
|
* any pending commands after the kill. The function will return 1 when it
|
|
* fails to kill the board else will return 0.
|
|
**/
|
|
int
|
|
lpfc_sli_brdkill(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli *psli;
|
|
LPFC_MBOXQ_t *pmb;
|
|
uint32_t status;
|
|
uint32_t ha_copy;
|
|
int retval;
|
|
int i = 0;
|
|
|
|
psli = &phba->sli;
|
|
|
|
/* Kill HBA */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"0329 Kill HBA Data: x%x x%x\n",
|
|
phba->pport->port_state, psli->sli_flag);
|
|
|
|
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmb)
|
|
return 1;
|
|
|
|
/* Disable the error attention */
|
|
spin_lock_irq(&phba->hbalock);
|
|
status = readl(phba->HCregaddr);
|
|
status &= ~HC_ERINT_ENA;
|
|
writel(status, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
phba->link_flag |= LS_IGNORE_ERATT;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
lpfc_kill_board(phba, pmb);
|
|
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
|
|
|
|
if (retval != MBX_SUCCESS) {
|
|
if (retval != MBX_BUSY)
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2752 KILL_BOARD command failed retval %d\n",
|
|
retval);
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->link_flag &= ~LS_IGNORE_ERATT;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return 1;
|
|
}
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
psli->sli_flag &= ~LPFC_SLI_ACTIVE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
|
|
/* There is no completion for a KILL_BOARD mbox cmd. Check for an error
|
|
* attention every 100ms for 3 seconds. If we don't get ERATT after
|
|
* 3 seconds we still set HBA_ERROR state because the status of the
|
|
* board is now undefined.
|
|
*/
|
|
ha_copy = readl(phba->HAregaddr);
|
|
|
|
while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
|
|
mdelay(100);
|
|
ha_copy = readl(phba->HAregaddr);
|
|
}
|
|
|
|
del_timer_sync(&psli->mbox_tmo);
|
|
if (ha_copy & HA_ERATT) {
|
|
writel(HA_ERATT, phba->HAregaddr);
|
|
phba->pport->stopped = 1;
|
|
}
|
|
spin_lock_irq(&phba->hbalock);
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
psli->mbox_active = NULL;
|
|
phba->link_flag &= ~LS_IGNORE_ERATT;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
lpfc_hba_down_post(phba);
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
|
|
return ha_copy & HA_ERATT ? 0 : 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function resets the HBA by writing HC_INITFF to the control
|
|
* register. After the HBA resets, this function resets all the iocb ring
|
|
* indices. This function disables PCI layer parity checking during
|
|
* the reset.
|
|
* This function returns 0 always.
|
|
* The caller is not required to hold any locks.
|
|
**/
|
|
int
|
|
lpfc_sli_brdreset(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli *psli;
|
|
struct lpfc_sli_ring *pring;
|
|
uint16_t cfg_value;
|
|
int i;
|
|
|
|
psli = &phba->sli;
|
|
|
|
/* Reset HBA */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"0325 Reset HBA Data: x%x x%x\n",
|
|
phba->pport->port_state, psli->sli_flag);
|
|
|
|
/* perform board reset */
|
|
phba->fc_eventTag = 0;
|
|
phba->link_events = 0;
|
|
phba->pport->fc_myDID = 0;
|
|
phba->pport->fc_prevDID = 0;
|
|
|
|
/* Turn off parity checking and serr during the physical reset */
|
|
pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
|
|
pci_write_config_word(phba->pcidev, PCI_COMMAND,
|
|
(cfg_value &
|
|
~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
|
|
|
|
psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
|
|
|
|
/* Now toggle INITFF bit in the Host Control Register */
|
|
writel(HC_INITFF, phba->HCregaddr);
|
|
mdelay(1);
|
|
readl(phba->HCregaddr); /* flush */
|
|
writel(0, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
|
|
/* Restore PCI cmd register */
|
|
pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
|
|
|
|
/* Initialize relevant SLI info */
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
pring = &psli->ring[i];
|
|
pring->flag = 0;
|
|
pring->rspidx = 0;
|
|
pring->next_cmdidx = 0;
|
|
pring->local_getidx = 0;
|
|
pring->cmdidx = 0;
|
|
pring->missbufcnt = 0;
|
|
}
|
|
|
|
phba->link_state = LPFC_WARM_START;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_brdreset - Reset a sli-4 HBA
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function resets a SLI4 HBA. This function disables PCI layer parity
|
|
* checking during resets the device. The caller is not required to hold
|
|
* any locks.
|
|
*
|
|
* This function returns 0 always.
|
|
**/
|
|
int
|
|
lpfc_sli4_brdreset(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
uint16_t cfg_value;
|
|
uint8_t qindx;
|
|
|
|
/* Reset HBA */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"0295 Reset HBA Data: x%x x%x\n",
|
|
phba->pport->port_state, psli->sli_flag);
|
|
|
|
/* perform board reset */
|
|
phba->fc_eventTag = 0;
|
|
phba->link_events = 0;
|
|
phba->pport->fc_myDID = 0;
|
|
phba->pport->fc_prevDID = 0;
|
|
|
|
/* Turn off parity checking and serr during the physical reset */
|
|
pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
|
|
pci_write_config_word(phba->pcidev, PCI_COMMAND,
|
|
(cfg_value &
|
|
~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
psli->sli_flag &= ~(LPFC_PROCESS_LA);
|
|
phba->fcf.fcf_flag = 0;
|
|
/* Clean up the child queue list for the CQs */
|
|
list_del_init(&phba->sli4_hba.mbx_wq->list);
|
|
list_del_init(&phba->sli4_hba.els_wq->list);
|
|
list_del_init(&phba->sli4_hba.hdr_rq->list);
|
|
list_del_init(&phba->sli4_hba.dat_rq->list);
|
|
list_del_init(&phba->sli4_hba.mbx_cq->list);
|
|
list_del_init(&phba->sli4_hba.els_cq->list);
|
|
for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++)
|
|
list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list);
|
|
for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++)
|
|
list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Now physically reset the device */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"0389 Performing PCI function reset!\n");
|
|
/* Perform FCoE PCI function reset */
|
|
lpfc_pci_function_reset(phba);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called in the SLI initialization code path to
|
|
* restart the HBA. The caller is not required to hold any lock.
|
|
* This function writes MBX_RESTART mailbox command to the SLIM and
|
|
* resets the HBA. At the end of the function, it calls lpfc_hba_down_post
|
|
* function to free any pending commands. The function enables
|
|
* POST only during the first initialization. The function returns zero.
|
|
* The function does not guarantee completion of MBX_RESTART mailbox
|
|
* command before the return of this function.
|
|
**/
|
|
static int
|
|
lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
|
|
{
|
|
MAILBOX_t *mb;
|
|
struct lpfc_sli *psli;
|
|
volatile uint32_t word0;
|
|
void __iomem *to_slim;
|
|
uint32_t hba_aer_enabled;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
|
|
/* Take PCIe device Advanced Error Reporting (AER) state */
|
|
hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
|
|
|
|
psli = &phba->sli;
|
|
|
|
/* Restart HBA */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"0337 Restart HBA Data: x%x x%x\n",
|
|
phba->pport->port_state, psli->sli_flag);
|
|
|
|
word0 = 0;
|
|
mb = (MAILBOX_t *) &word0;
|
|
mb->mbxCommand = MBX_RESTART;
|
|
mb->mbxHc = 1;
|
|
|
|
lpfc_reset_barrier(phba);
|
|
|
|
to_slim = phba->MBslimaddr;
|
|
writel(*(uint32_t *) mb, to_slim);
|
|
readl(to_slim); /* flush */
|
|
|
|
/* Only skip post after fc_ffinit is completed */
|
|
if (phba->pport->port_state)
|
|
word0 = 1; /* This is really setting up word1 */
|
|
else
|
|
word0 = 0; /* This is really setting up word1 */
|
|
to_slim = phba->MBslimaddr + sizeof (uint32_t);
|
|
writel(*(uint32_t *) mb, to_slim);
|
|
readl(to_slim); /* flush */
|
|
|
|
lpfc_sli_brdreset(phba);
|
|
phba->pport->stopped = 0;
|
|
phba->link_state = LPFC_INIT_START;
|
|
phba->hba_flag = 0;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
|
|
psli->stats_start = get_seconds();
|
|
|
|
/* Give the INITFF and Post time to settle. */
|
|
mdelay(100);
|
|
|
|
/* Reset HBA AER if it was enabled, note hba_flag was reset above */
|
|
if (hba_aer_enabled)
|
|
pci_disable_pcie_error_reporting(phba->pcidev);
|
|
|
|
lpfc_hba_down_post(phba);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called in the SLI initialization code path to restart
|
|
* a SLI4 HBA. The caller is not required to hold any lock.
|
|
* At the end of the function, it calls lpfc_hba_down_post function to
|
|
* free any pending commands.
|
|
**/
|
|
static int
|
|
lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
|
|
|
|
/* Restart HBA */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"0296 Restart HBA Data: x%x x%x\n",
|
|
phba->pport->port_state, psli->sli_flag);
|
|
|
|
lpfc_sli4_brdreset(phba);
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->pport->stopped = 0;
|
|
phba->link_state = LPFC_INIT_START;
|
|
phba->hba_flag = 0;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
|
|
psli->stats_start = get_seconds();
|
|
|
|
lpfc_hba_down_post(phba);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_brdrestart - Wrapper func for restarting hba
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This routine wraps the actual SLI3 or SLI4 hba restart routine from the
|
|
* API jump table function pointer from the lpfc_hba struct.
|
|
**/
|
|
int
|
|
lpfc_sli_brdrestart(struct lpfc_hba *phba)
|
|
{
|
|
return phba->lpfc_sli_brdrestart(phba);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called after a HBA restart to wait for successful
|
|
* restart of the HBA. Successful restart of the HBA is indicated by
|
|
* HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
|
|
* iteration, the function will restart the HBA again. The function returns
|
|
* zero if HBA successfully restarted else returns negative error code.
|
|
**/
|
|
static int
|
|
lpfc_sli_chipset_init(struct lpfc_hba *phba)
|
|
{
|
|
uint32_t status, i = 0;
|
|
|
|
/* Read the HBA Host Status Register */
|
|
status = readl(phba->HSregaddr);
|
|
|
|
/* Check status register to see what current state is */
|
|
i = 0;
|
|
while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
|
|
|
|
/* Check every 100ms for 5 retries, then every 500ms for 5, then
|
|
* every 2.5 sec for 5, then reset board and every 2.5 sec for
|
|
* 4.
|
|
*/
|
|
if (i++ >= 20) {
|
|
/* Adapter failed to init, timeout, status reg
|
|
<status> */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0436 Adapter failed to init, "
|
|
"timeout, status reg x%x, "
|
|
"FW Data: A8 x%x AC x%x\n", status,
|
|
readl(phba->MBslimaddr + 0xa8),
|
|
readl(phba->MBslimaddr + 0xac));
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
/* Check to see if any errors occurred during init */
|
|
if (status & HS_FFERM) {
|
|
/* ERROR: During chipset initialization */
|
|
/* Adapter failed to init, chipset, status reg
|
|
<status> */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0437 Adapter failed to init, "
|
|
"chipset, status reg x%x, "
|
|
"FW Data: A8 x%x AC x%x\n", status,
|
|
readl(phba->MBslimaddr + 0xa8),
|
|
readl(phba->MBslimaddr + 0xac));
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
return -EIO;
|
|
}
|
|
|
|
if (i <= 5) {
|
|
msleep(10);
|
|
} else if (i <= 10) {
|
|
msleep(500);
|
|
} else {
|
|
msleep(2500);
|
|
}
|
|
|
|
if (i == 15) {
|
|
/* Do post */
|
|
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
|
|
lpfc_sli_brdrestart(phba);
|
|
}
|
|
/* Read the HBA Host Status Register */
|
|
status = readl(phba->HSregaddr);
|
|
}
|
|
|
|
/* Check to see if any errors occurred during init */
|
|
if (status & HS_FFERM) {
|
|
/* ERROR: During chipset initialization */
|
|
/* Adapter failed to init, chipset, status reg <status> */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0438 Adapter failed to init, chipset, "
|
|
"status reg x%x, "
|
|
"FW Data: A8 x%x AC x%x\n", status,
|
|
readl(phba->MBslimaddr + 0xa8),
|
|
readl(phba->MBslimaddr + 0xac));
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
return -EIO;
|
|
}
|
|
|
|
/* Clear all interrupt enable conditions */
|
|
writel(0, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
|
|
/* setup host attn register */
|
|
writel(0xffffffff, phba->HAregaddr);
|
|
readl(phba->HAregaddr); /* flush */
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_hbq_count - Get the number of HBQs to be configured
|
|
*
|
|
* This function calculates and returns the number of HBQs required to be
|
|
* configured.
|
|
**/
|
|
int
|
|
lpfc_sli_hbq_count(void)
|
|
{
|
|
return ARRAY_SIZE(lpfc_hbq_defs);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
|
|
*
|
|
* This function adds the number of hbq entries in every HBQ to get
|
|
* the total number of hbq entries required for the HBA and returns
|
|
* the total count.
|
|
**/
|
|
static int
|
|
lpfc_sli_hbq_entry_count(void)
|
|
{
|
|
int hbq_count = lpfc_sli_hbq_count();
|
|
int count = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < hbq_count; ++i)
|
|
count += lpfc_hbq_defs[i]->entry_count;
|
|
return count;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_hbq_size - Calculate memory required for all hbq entries
|
|
*
|
|
* This function calculates amount of memory required for all hbq entries
|
|
* to be configured and returns the total memory required.
|
|
**/
|
|
int
|
|
lpfc_sli_hbq_size(void)
|
|
{
|
|
return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_hbq_setup - configure and initialize HBQs
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called during the SLI initialization to configure
|
|
* all the HBQs and post buffers to the HBQ. The caller is not
|
|
* required to hold any locks. This function will return zero if successful
|
|
* else it will return negative error code.
|
|
**/
|
|
static int
|
|
lpfc_sli_hbq_setup(struct lpfc_hba *phba)
|
|
{
|
|
int hbq_count = lpfc_sli_hbq_count();
|
|
LPFC_MBOXQ_t *pmb;
|
|
MAILBOX_t *pmbox;
|
|
uint32_t hbqno;
|
|
uint32_t hbq_entry_index;
|
|
|
|
/* Get a Mailbox buffer to setup mailbox
|
|
* commands for HBA initialization
|
|
*/
|
|
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
|
|
if (!pmb)
|
|
return -ENOMEM;
|
|
|
|
pmbox = &pmb->u.mb;
|
|
|
|
/* Initialize the struct lpfc_sli_hbq structure for each hbq */
|
|
phba->link_state = LPFC_INIT_MBX_CMDS;
|
|
phba->hbq_in_use = 1;
|
|
|
|
hbq_entry_index = 0;
|
|
for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
|
|
phba->hbqs[hbqno].next_hbqPutIdx = 0;
|
|
phba->hbqs[hbqno].hbqPutIdx = 0;
|
|
phba->hbqs[hbqno].local_hbqGetIdx = 0;
|
|
phba->hbqs[hbqno].entry_count =
|
|
lpfc_hbq_defs[hbqno]->entry_count;
|
|
lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
|
|
hbq_entry_index, pmb);
|
|
hbq_entry_index += phba->hbqs[hbqno].entry_count;
|
|
|
|
if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
|
|
/* Adapter failed to init, mbxCmd <cmd> CFG_RING,
|
|
mbxStatus <status>, ring <num> */
|
|
|
|
lpfc_printf_log(phba, KERN_ERR,
|
|
LOG_SLI | LOG_VPORT,
|
|
"1805 Adapter failed to init. "
|
|
"Data: x%x x%x x%x\n",
|
|
pmbox->mbxCommand,
|
|
pmbox->mbxStatus, hbqno);
|
|
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return ENXIO;
|
|
}
|
|
}
|
|
phba->hbq_count = hbq_count;
|
|
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
|
|
/* Initially populate or replenish the HBQs */
|
|
for (hbqno = 0; hbqno < hbq_count; ++hbqno)
|
|
lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_rb_setup - Initialize and post RBs to HBA
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called during the SLI initialization to configure
|
|
* all the HBQs and post buffers to the HBQ. The caller is not
|
|
* required to hold any locks. This function will return zero if successful
|
|
* else it will return negative error code.
|
|
**/
|
|
static int
|
|
lpfc_sli4_rb_setup(struct lpfc_hba *phba)
|
|
{
|
|
phba->hbq_in_use = 1;
|
|
phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
|
|
phba->hbq_count = 1;
|
|
/* Initially populate or replenish the HBQs */
|
|
lpfc_sli_hbqbuf_init_hbqs(phba, 0);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_config_port - Issue config port mailbox command
|
|
* @phba: Pointer to HBA context object.
|
|
* @sli_mode: sli mode - 2/3
|
|
*
|
|
* This function is called by the sli intialization code path
|
|
* to issue config_port mailbox command. This function restarts the
|
|
* HBA firmware and issues a config_port mailbox command to configure
|
|
* the SLI interface in the sli mode specified by sli_mode
|
|
* variable. The caller is not required to hold any locks.
|
|
* The function returns 0 if successful, else returns negative error
|
|
* code.
|
|
**/
|
|
int
|
|
lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
|
|
{
|
|
LPFC_MBOXQ_t *pmb;
|
|
uint32_t resetcount = 0, rc = 0, done = 0;
|
|
|
|
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmb) {
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
return -ENOMEM;
|
|
}
|
|
|
|
phba->sli_rev = sli_mode;
|
|
while (resetcount < 2 && !done) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
|
|
lpfc_sli_brdrestart(phba);
|
|
rc = lpfc_sli_chipset_init(phba);
|
|
if (rc)
|
|
break;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
resetcount++;
|
|
|
|
/* Call pre CONFIG_PORT mailbox command initialization. A
|
|
* value of 0 means the call was successful. Any other
|
|
* nonzero value is a failure, but if ERESTART is returned,
|
|
* the driver may reset the HBA and try again.
|
|
*/
|
|
rc = lpfc_config_port_prep(phba);
|
|
if (rc == -ERESTART) {
|
|
phba->link_state = LPFC_LINK_UNKNOWN;
|
|
continue;
|
|
} else if (rc)
|
|
break;
|
|
phba->link_state = LPFC_INIT_MBX_CMDS;
|
|
lpfc_config_port(phba, pmb);
|
|
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
|
|
phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
|
|
LPFC_SLI3_HBQ_ENABLED |
|
|
LPFC_SLI3_CRP_ENABLED |
|
|
LPFC_SLI3_INB_ENABLED |
|
|
LPFC_SLI3_BG_ENABLED);
|
|
if (rc != MBX_SUCCESS) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0442 Adapter failed to init, mbxCmd x%x "
|
|
"CONFIG_PORT, mbxStatus x%x Data: x%x\n",
|
|
pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
rc = -ENXIO;
|
|
} else {
|
|
/* Allow asynchronous mailbox command to go through */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
done = 1;
|
|
}
|
|
}
|
|
if (!done) {
|
|
rc = -EINVAL;
|
|
goto do_prep_failed;
|
|
}
|
|
if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
|
|
if (!pmb->u.mb.un.varCfgPort.cMA) {
|
|
rc = -ENXIO;
|
|
goto do_prep_failed;
|
|
}
|
|
if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
|
|
phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
|
|
phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
|
|
phba->max_vports = (phba->max_vpi > phba->max_vports) ?
|
|
phba->max_vpi : phba->max_vports;
|
|
|
|
} else
|
|
phba->max_vpi = 0;
|
|
if (pmb->u.mb.un.varCfgPort.gdss)
|
|
phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
|
|
if (pmb->u.mb.un.varCfgPort.gerbm)
|
|
phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
|
|
if (pmb->u.mb.un.varCfgPort.gcrp)
|
|
phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
|
|
if (pmb->u.mb.un.varCfgPort.ginb) {
|
|
phba->sli3_options |= LPFC_SLI3_INB_ENABLED;
|
|
phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get;
|
|
phba->port_gp = phba->mbox->us.s3_inb_pgp.port;
|
|
phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy;
|
|
phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter;
|
|
phba->inb_last_counter =
|
|
phba->mbox->us.s3_inb_pgp.counter;
|
|
} else {
|
|
phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
|
|
phba->port_gp = phba->mbox->us.s3_pgp.port;
|
|
phba->inb_ha_copy = NULL;
|
|
phba->inb_counter = NULL;
|
|
}
|
|
|
|
if (phba->cfg_enable_bg) {
|
|
if (pmb->u.mb.un.varCfgPort.gbg)
|
|
phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
|
|
else
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0443 Adapter did not grant "
|
|
"BlockGuard\n");
|
|
}
|
|
} else {
|
|
phba->hbq_get = NULL;
|
|
phba->port_gp = phba->mbox->us.s2.port;
|
|
phba->inb_ha_copy = NULL;
|
|
phba->inb_counter = NULL;
|
|
phba->max_vpi = 0;
|
|
}
|
|
do_prep_failed:
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return rc;
|
|
}
|
|
|
|
|
|
/**
|
|
* lpfc_sli_hba_setup - SLI intialization function
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is the main SLI intialization function. This function
|
|
* is called by the HBA intialization code, HBA reset code and HBA
|
|
* error attention handler code. Caller is not required to hold any
|
|
* locks. This function issues config_port mailbox command to configure
|
|
* the SLI, setup iocb rings and HBQ rings. In the end the function
|
|
* calls the config_port_post function to issue init_link mailbox
|
|
* command and to start the discovery. The function will return zero
|
|
* if successful, else it will return negative error code.
|
|
**/
|
|
int
|
|
lpfc_sli_hba_setup(struct lpfc_hba *phba)
|
|
{
|
|
uint32_t rc;
|
|
int mode = 3;
|
|
|
|
switch (lpfc_sli_mode) {
|
|
case 2:
|
|
if (phba->cfg_enable_npiv) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
|
|
"1824 NPIV enabled: Override lpfc_sli_mode "
|
|
"parameter (%d) to auto (0).\n",
|
|
lpfc_sli_mode);
|
|
break;
|
|
}
|
|
mode = 2;
|
|
break;
|
|
case 0:
|
|
case 3:
|
|
break;
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
|
|
"1819 Unrecognized lpfc_sli_mode "
|
|
"parameter: %d.\n", lpfc_sli_mode);
|
|
|
|
break;
|
|
}
|
|
|
|
rc = lpfc_sli_config_port(phba, mode);
|
|
|
|
if (rc && lpfc_sli_mode == 3)
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
|
|
"1820 Unable to select SLI-3. "
|
|
"Not supported by adapter.\n");
|
|
if (rc && mode != 2)
|
|
rc = lpfc_sli_config_port(phba, 2);
|
|
if (rc)
|
|
goto lpfc_sli_hba_setup_error;
|
|
|
|
/* Enable PCIe device Advanced Error Reporting (AER) if configured */
|
|
if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
|
|
rc = pci_enable_pcie_error_reporting(phba->pcidev);
|
|
if (!rc) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"2709 This device supports "
|
|
"Advanced Error Reporting (AER)\n");
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->hba_flag |= HBA_AER_ENABLED;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"2708 This device does not support "
|
|
"Advanced Error Reporting (AER)\n");
|
|
phba->cfg_aer_support = 0;
|
|
}
|
|
}
|
|
|
|
if (phba->sli_rev == 3) {
|
|
phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
|
|
phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
|
|
} else {
|
|
phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
|
|
phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
|
|
phba->sli3_options = 0;
|
|
}
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"0444 Firmware in SLI %x mode. Max_vpi %d\n",
|
|
phba->sli_rev, phba->max_vpi);
|
|
rc = lpfc_sli_ring_map(phba);
|
|
|
|
if (rc)
|
|
goto lpfc_sli_hba_setup_error;
|
|
|
|
/* Init HBQs */
|
|
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
|
|
rc = lpfc_sli_hbq_setup(phba);
|
|
if (rc)
|
|
goto lpfc_sli_hba_setup_error;
|
|
}
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->sli.sli_flag |= LPFC_PROCESS_LA;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
rc = lpfc_config_port_post(phba);
|
|
if (rc)
|
|
goto lpfc_sli_hba_setup_error;
|
|
|
|
return rc;
|
|
|
|
lpfc_sli_hba_setup_error:
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0445 Firmware initialization failed\n");
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
|
|
* @phba: Pointer to HBA context object.
|
|
* @mboxq: mailbox pointer.
|
|
* This function issue a dump mailbox command to read config region
|
|
* 23 and parse the records in the region and populate driver
|
|
* data structure.
|
|
**/
|
|
static int
|
|
lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
|
|
LPFC_MBOXQ_t *mboxq)
|
|
{
|
|
struct lpfc_dmabuf *mp;
|
|
struct lpfc_mqe *mqe;
|
|
uint32_t data_length;
|
|
int rc;
|
|
|
|
/* Program the default value of vlan_id and fc_map */
|
|
phba->valid_vlan = 0;
|
|
phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
|
|
phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
|
|
phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
|
|
|
|
mqe = &mboxq->u.mqe;
|
|
if (lpfc_dump_fcoe_param(phba, mboxq))
|
|
return -ENOMEM;
|
|
|
|
mp = (struct lpfc_dmabuf *) mboxq->context1;
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
|
|
"(%d):2571 Mailbox cmd x%x Status x%x "
|
|
"Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
|
|
"x%x x%x x%x x%x x%x x%x x%x x%x x%x "
|
|
"CQ: x%x x%x x%x x%x\n",
|
|
mboxq->vport ? mboxq->vport->vpi : 0,
|
|
bf_get(lpfc_mqe_command, mqe),
|
|
bf_get(lpfc_mqe_status, mqe),
|
|
mqe->un.mb_words[0], mqe->un.mb_words[1],
|
|
mqe->un.mb_words[2], mqe->un.mb_words[3],
|
|
mqe->un.mb_words[4], mqe->un.mb_words[5],
|
|
mqe->un.mb_words[6], mqe->un.mb_words[7],
|
|
mqe->un.mb_words[8], mqe->un.mb_words[9],
|
|
mqe->un.mb_words[10], mqe->un.mb_words[11],
|
|
mqe->un.mb_words[12], mqe->un.mb_words[13],
|
|
mqe->un.mb_words[14], mqe->un.mb_words[15],
|
|
mqe->un.mb_words[16], mqe->un.mb_words[50],
|
|
mboxq->mcqe.word0,
|
|
mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
|
|
mboxq->mcqe.trailer);
|
|
|
|
if (rc) {
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
return -EIO;
|
|
}
|
|
data_length = mqe->un.mb_words[5];
|
|
if (data_length > DMP_RGN23_SIZE) {
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
return -EIO;
|
|
}
|
|
|
|
lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @mboxq: pointer to the LPFC_MBOXQ_t structure.
|
|
* @vpd: pointer to the memory to hold resulting port vpd data.
|
|
* @vpd_size: On input, the number of bytes allocated to @vpd.
|
|
* On output, the number of data bytes in @vpd.
|
|
*
|
|
* This routine executes a READ_REV SLI4 mailbox command. In
|
|
* addition, this routine gets the port vpd data.
|
|
*
|
|
* Return codes
|
|
* 0 - successful
|
|
* ENOMEM - could not allocated memory.
|
|
**/
|
|
static int
|
|
lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
|
|
uint8_t *vpd, uint32_t *vpd_size)
|
|
{
|
|
int rc = 0;
|
|
uint32_t dma_size;
|
|
struct lpfc_dmabuf *dmabuf;
|
|
struct lpfc_mqe *mqe;
|
|
|
|
dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
if (!dmabuf)
|
|
return -ENOMEM;
|
|
|
|
/*
|
|
* Get a DMA buffer for the vpd data resulting from the READ_REV
|
|
* mailbox command.
|
|
*/
|
|
dma_size = *vpd_size;
|
|
dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
|
|
dma_size,
|
|
&dmabuf->phys,
|
|
GFP_KERNEL);
|
|
if (!dmabuf->virt) {
|
|
kfree(dmabuf);
|
|
return -ENOMEM;
|
|
}
|
|
memset(dmabuf->virt, 0, dma_size);
|
|
|
|
/*
|
|
* The SLI4 implementation of READ_REV conflicts at word1,
|
|
* bits 31:16 and SLI4 adds vpd functionality not present
|
|
* in SLI3. This code corrects the conflicts.
|
|
*/
|
|
lpfc_read_rev(phba, mboxq);
|
|
mqe = &mboxq->u.mqe;
|
|
mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
|
|
mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
|
|
mqe->un.read_rev.word1 &= 0x0000FFFF;
|
|
bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
|
|
bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
|
|
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
|
|
if (rc) {
|
|
dma_free_coherent(&phba->pcidev->dev, dma_size,
|
|
dmabuf->virt, dmabuf->phys);
|
|
kfree(dmabuf);
|
|
return -EIO;
|
|
}
|
|
|
|
/*
|
|
* The available vpd length cannot be bigger than the
|
|
* DMA buffer passed to the port. Catch the less than
|
|
* case and update the caller's size.
|
|
*/
|
|
if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
|
|
*vpd_size = mqe->un.read_rev.avail_vpd_len;
|
|
|
|
lpfc_sli_pcimem_bcopy(dmabuf->virt, vpd, *vpd_size);
|
|
dma_free_coherent(&phba->pcidev->dev, dma_size,
|
|
dmabuf->virt, dmabuf->phys);
|
|
kfree(dmabuf);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is called to explicitly arm the SLI4 device's completion and
|
|
* event queues
|
|
**/
|
|
static void
|
|
lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
|
|
{
|
|
uint8_t fcp_eqidx;
|
|
|
|
lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
|
|
lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
|
|
for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
|
|
lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
|
|
LPFC_QUEUE_REARM);
|
|
lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
|
|
for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
|
|
lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
|
|
LPFC_QUEUE_REARM);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_hba_setup - SLI4 device intialization PCI function
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is the main SLI4 device intialization PCI function. This
|
|
* function is called by the HBA intialization code, HBA reset code and
|
|
* HBA error attention handler code. Caller is not required to hold any
|
|
* locks.
|
|
**/
|
|
int
|
|
lpfc_sli4_hba_setup(struct lpfc_hba *phba)
|
|
{
|
|
int rc;
|
|
LPFC_MBOXQ_t *mboxq;
|
|
struct lpfc_mqe *mqe;
|
|
uint8_t *vpd;
|
|
uint32_t vpd_size;
|
|
uint32_t ftr_rsp = 0;
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
|
|
struct lpfc_vport *vport = phba->pport;
|
|
struct lpfc_dmabuf *mp;
|
|
|
|
/* Perform a PCI function reset to start from clean */
|
|
rc = lpfc_pci_function_reset(phba);
|
|
if (unlikely(rc))
|
|
return -ENODEV;
|
|
|
|
/* Check the HBA Host Status Register for readyness */
|
|
rc = lpfc_sli4_post_status_check(phba);
|
|
if (unlikely(rc))
|
|
return -ENODEV;
|
|
else {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
|
|
/*
|
|
* Allocate a single mailbox container for initializing the
|
|
* port.
|
|
*/
|
|
mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mboxq)
|
|
return -ENOMEM;
|
|
|
|
/*
|
|
* Continue initialization with default values even if driver failed
|
|
* to read FCoE param config regions
|
|
*/
|
|
if (lpfc_sli4_read_fcoe_params(phba, mboxq))
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
|
|
"2570 Failed to read FCoE parameters\n");
|
|
|
|
/* Issue READ_REV to collect vpd and FW information. */
|
|
vpd_size = PAGE_SIZE;
|
|
vpd = kzalloc(vpd_size, GFP_KERNEL);
|
|
if (!vpd) {
|
|
rc = -ENOMEM;
|
|
goto out_free_mbox;
|
|
}
|
|
|
|
rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
|
|
if (unlikely(rc))
|
|
goto out_free_vpd;
|
|
|
|
mqe = &mboxq->u.mqe;
|
|
phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
|
|
if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
|
|
phba->hba_flag |= HBA_FCOE_SUPPORT;
|
|
|
|
if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
|
|
LPFC_DCBX_CEE_MODE)
|
|
phba->hba_flag |= HBA_FIP_SUPPORT;
|
|
else
|
|
phba->hba_flag &= ~HBA_FIP_SUPPORT;
|
|
|
|
if (phba->sli_rev != LPFC_SLI_REV4 ||
|
|
!(phba->hba_flag & HBA_FCOE_SUPPORT)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"0376 READ_REV Error. SLI Level %d "
|
|
"FCoE enabled %d\n",
|
|
phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT);
|
|
rc = -EIO;
|
|
goto out_free_vpd;
|
|
}
|
|
/*
|
|
* Evaluate the read rev and vpd data. Populate the driver
|
|
* state with the results. If this routine fails, the failure
|
|
* is not fatal as the driver will use generic values.
|
|
*/
|
|
rc = lpfc_parse_vpd(phba, vpd, vpd_size);
|
|
if (unlikely(!rc)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"0377 Error %d parsing vpd. "
|
|
"Using defaults.\n", rc);
|
|
rc = 0;
|
|
}
|
|
|
|
/* Save information as VPD data */
|
|
phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
|
|
phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
|
|
phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
|
|
phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
|
|
&mqe->un.read_rev);
|
|
phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
|
|
&mqe->un.read_rev);
|
|
phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
|
|
&mqe->un.read_rev);
|
|
phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
|
|
&mqe->un.read_rev);
|
|
phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
|
|
memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
|
|
phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
|
|
memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
|
|
phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
|
|
memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
|
|
"(%d):0380 READ_REV Status x%x "
|
|
"fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
|
|
mboxq->vport ? mboxq->vport->vpi : 0,
|
|
bf_get(lpfc_mqe_status, mqe),
|
|
phba->vpd.rev.opFwName,
|
|
phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
|
|
phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
|
|
|
|
/*
|
|
* Discover the port's supported feature set and match it against the
|
|
* hosts requests.
|
|
*/
|
|
lpfc_request_features(phba, mboxq);
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
|
|
if (unlikely(rc)) {
|
|
rc = -EIO;
|
|
goto out_free_vpd;
|
|
}
|
|
|
|
/*
|
|
* The port must support FCP initiator mode as this is the
|
|
* only mode running in the host.
|
|
*/
|
|
if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
|
|
"0378 No support for fcpi mode.\n");
|
|
ftr_rsp++;
|
|
}
|
|
|
|
/*
|
|
* If the port cannot support the host's requested features
|
|
* then turn off the global config parameters to disable the
|
|
* feature in the driver. This is not a fatal error.
|
|
*/
|
|
if ((phba->cfg_enable_bg) &&
|
|
!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
|
|
ftr_rsp++;
|
|
|
|
if (phba->max_vpi && phba->cfg_enable_npiv &&
|
|
!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
|
|
ftr_rsp++;
|
|
|
|
if (ftr_rsp) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
|
|
"0379 Feature Mismatch Data: x%08x %08x "
|
|
"x%x x%x x%x\n", mqe->un.req_ftrs.word2,
|
|
mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
|
|
phba->cfg_enable_npiv, phba->max_vpi);
|
|
if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
|
|
phba->cfg_enable_bg = 0;
|
|
if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
|
|
phba->cfg_enable_npiv = 0;
|
|
}
|
|
|
|
/* These SLI3 features are assumed in SLI4 */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Read the port's service parameters. */
|
|
rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
|
|
if (rc) {
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
rc = -ENOMEM;
|
|
goto out_free_vpd;
|
|
}
|
|
|
|
mboxq->vport = vport;
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
|
|
mp = (struct lpfc_dmabuf *) mboxq->context1;
|
|
if (rc == MBX_SUCCESS) {
|
|
memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
|
|
rc = 0;
|
|
}
|
|
|
|
/*
|
|
* This memory was allocated by the lpfc_read_sparam routine. Release
|
|
* it to the mbuf pool.
|
|
*/
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
mboxq->context1 = NULL;
|
|
if (unlikely(rc)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"0382 READ_SPARAM command failed "
|
|
"status %d, mbxStatus x%x\n",
|
|
rc, bf_get(lpfc_mqe_status, mqe));
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
rc = -EIO;
|
|
goto out_free_vpd;
|
|
}
|
|
|
|
if (phba->cfg_soft_wwnn)
|
|
u64_to_wwn(phba->cfg_soft_wwnn,
|
|
vport->fc_sparam.nodeName.u.wwn);
|
|
if (phba->cfg_soft_wwpn)
|
|
u64_to_wwn(phba->cfg_soft_wwpn,
|
|
vport->fc_sparam.portName.u.wwn);
|
|
memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
|
|
sizeof(struct lpfc_name));
|
|
memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
|
|
sizeof(struct lpfc_name));
|
|
|
|
/* Update the fc_host data structures with new wwn. */
|
|
fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
|
|
fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
|
|
|
|
/* Register SGL pool to the device using non-embedded mailbox command */
|
|
rc = lpfc_sli4_post_sgl_list(phba);
|
|
if (unlikely(rc)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"0582 Error %d during sgl post operation\n",
|
|
rc);
|
|
rc = -ENODEV;
|
|
goto out_free_vpd;
|
|
}
|
|
|
|
/* Register SCSI SGL pool to the device */
|
|
rc = lpfc_sli4_repost_scsi_sgl_list(phba);
|
|
if (unlikely(rc)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
|
|
"0383 Error %d during scsi sgl post "
|
|
"operation\n", rc);
|
|
/* Some Scsi buffers were moved to the abort scsi list */
|
|
/* A pci function reset will repost them */
|
|
rc = -ENODEV;
|
|
goto out_free_vpd;
|
|
}
|
|
|
|
/* Post the rpi header region to the device. */
|
|
rc = lpfc_sli4_post_all_rpi_hdrs(phba);
|
|
if (unlikely(rc)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"0393 Error %d during rpi post operation\n",
|
|
rc);
|
|
rc = -ENODEV;
|
|
goto out_free_vpd;
|
|
}
|
|
|
|
/* Set up all the queues to the device */
|
|
rc = lpfc_sli4_queue_setup(phba);
|
|
if (unlikely(rc)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"0381 Error %d during queue setup.\n ", rc);
|
|
goto out_stop_timers;
|
|
}
|
|
|
|
/* Arm the CQs and then EQs on device */
|
|
lpfc_sli4_arm_cqeq_intr(phba);
|
|
|
|
/* Indicate device interrupt mode */
|
|
phba->sli4_hba.intr_enable = 1;
|
|
|
|
/* Allow asynchronous mailbox command to go through */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Post receive buffers to the device */
|
|
lpfc_sli4_rb_setup(phba);
|
|
|
|
/* Reset HBA FCF states after HBA reset */
|
|
phba->fcf.fcf_flag = 0;
|
|
phba->fcf.current_rec.flag = 0;
|
|
|
|
/* Start the ELS watchdog timer */
|
|
mod_timer(&vport->els_tmofunc,
|
|
jiffies + HZ * (phba->fc_ratov * 2));
|
|
|
|
/* Start heart beat timer */
|
|
mod_timer(&phba->hb_tmofunc,
|
|
jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
|
|
phba->hb_outstanding = 0;
|
|
phba->last_completion_time = jiffies;
|
|
|
|
/* Start error attention (ERATT) polling timer */
|
|
mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
|
|
|
|
/*
|
|
* The port is ready, set the host's link state to LINK_DOWN
|
|
* in preparation for link interrupts.
|
|
*/
|
|
lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed);
|
|
mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
lpfc_set_loopback_flag(phba);
|
|
/* Change driver state to LPFC_LINK_DOWN right before init link */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->link_state = LPFC_LINK_DOWN;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
|
|
if (unlikely(rc != MBX_NOT_FINISHED)) {
|
|
kfree(vpd);
|
|
return 0;
|
|
} else
|
|
rc = -EIO;
|
|
|
|
/* Unset all the queues set up in this routine when error out */
|
|
if (rc)
|
|
lpfc_sli4_queue_unset(phba);
|
|
|
|
out_stop_timers:
|
|
if (rc)
|
|
lpfc_stop_hba_timers(phba);
|
|
out_free_vpd:
|
|
kfree(vpd);
|
|
out_free_mbox:
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_mbox_timeout - Timeout call back function for mbox timer
|
|
* @ptr: context object - pointer to hba structure.
|
|
*
|
|
* This is the callback function for mailbox timer. The mailbox
|
|
* timer is armed when a new mailbox command is issued and the timer
|
|
* is deleted when the mailbox complete. The function is called by
|
|
* the kernel timer code when a mailbox does not complete within
|
|
* expected time. This function wakes up the worker thread to
|
|
* process the mailbox timeout and returns. All the processing is
|
|
* done by the worker thread function lpfc_mbox_timeout_handler.
|
|
**/
|
|
void
|
|
lpfc_mbox_timeout(unsigned long ptr)
|
|
{
|
|
struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
|
|
unsigned long iflag;
|
|
uint32_t tmo_posted;
|
|
|
|
spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
|
|
tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
|
|
if (!tmo_posted)
|
|
phba->pport->work_port_events |= WORKER_MBOX_TMO;
|
|
spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
|
|
|
|
if (!tmo_posted)
|
|
lpfc_worker_wake_up(phba);
|
|
return;
|
|
}
|
|
|
|
|
|
/**
|
|
* lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called from worker thread when a mailbox command times out.
|
|
* The caller is not required to hold any locks. This function will reset the
|
|
* HBA and recover all the pending commands.
|
|
**/
|
|
void
|
|
lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
|
|
{
|
|
LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
|
|
MAILBOX_t *mb = &pmbox->u.mb;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_sli_ring *pring;
|
|
|
|
/* Check the pmbox pointer first. There is a race condition
|
|
* between the mbox timeout handler getting executed in the
|
|
* worklist and the mailbox actually completing. When this
|
|
* race condition occurs, the mbox_active will be NULL.
|
|
*/
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (pmbox == NULL) {
|
|
lpfc_printf_log(phba, KERN_WARNING,
|
|
LOG_MBOX | LOG_SLI,
|
|
"0353 Active Mailbox cleared - mailbox timeout "
|
|
"exiting\n");
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return;
|
|
}
|
|
|
|
/* Mbox cmd <mbxCommand> timeout */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
|
|
mb->mbxCommand,
|
|
phba->pport->port_state,
|
|
phba->sli.sli_flag,
|
|
phba->sli.mbox_active);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Setting state unknown so lpfc_sli_abort_iocb_ring
|
|
* would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
|
|
* it to fail all oustanding SCSI IO.
|
|
*/
|
|
spin_lock_irq(&phba->pport->work_port_lock);
|
|
phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
|
|
spin_unlock_irq(&phba->pport->work_port_lock);
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->link_state = LPFC_LINK_UNKNOWN;
|
|
psli->sli_flag &= ~LPFC_SLI_ACTIVE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
pring = &psli->ring[psli->fcp_ring];
|
|
lpfc_sli_abort_iocb_ring(phba, pring);
|
|
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"0345 Resetting board due to mailbox timeout\n");
|
|
|
|
/* Reset the HBA device */
|
|
lpfc_reset_hba(phba);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
|
|
* @phba: Pointer to HBA context object.
|
|
* @pmbox: Pointer to mailbox object.
|
|
* @flag: Flag indicating how the mailbox need to be processed.
|
|
*
|
|
* This function is called by discovery code and HBA management code
|
|
* to submit a mailbox command to firmware with SLI-3 interface spec. This
|
|
* function gets the hbalock to protect the data structures.
|
|
* The mailbox command can be submitted in polling mode, in which case
|
|
* this function will wait in a polling loop for the completion of the
|
|
* mailbox.
|
|
* If the mailbox is submitted in no_wait mode (not polling) the
|
|
* function will submit the command and returns immediately without waiting
|
|
* for the mailbox completion. The no_wait is supported only when HBA
|
|
* is in SLI2/SLI3 mode - interrupts are enabled.
|
|
* The SLI interface allows only one mailbox pending at a time. If the
|
|
* mailbox is issued in polling mode and there is already a mailbox
|
|
* pending, then the function will return an error. If the mailbox is issued
|
|
* in NO_WAIT mode and there is a mailbox pending already, the function
|
|
* will return MBX_BUSY after queuing the mailbox into mailbox queue.
|
|
* The sli layer owns the mailbox object until the completion of mailbox
|
|
* command if this function return MBX_BUSY or MBX_SUCCESS. For all other
|
|
* return codes the caller owns the mailbox command after the return of
|
|
* the function.
|
|
**/
|
|
static int
|
|
lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
|
|
uint32_t flag)
|
|
{
|
|
MAILBOX_t *mb;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
uint32_t status, evtctr;
|
|
uint32_t ha_copy;
|
|
int i;
|
|
unsigned long timeout;
|
|
unsigned long drvr_flag = 0;
|
|
uint32_t word0, ldata;
|
|
void __iomem *to_slim;
|
|
int processing_queue = 0;
|
|
|
|
spin_lock_irqsave(&phba->hbalock, drvr_flag);
|
|
if (!pmbox) {
|
|
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
/* processing mbox queue from intr_handler */
|
|
if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
|
|
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
|
|
return MBX_SUCCESS;
|
|
}
|
|
processing_queue = 1;
|
|
pmbox = lpfc_mbox_get(phba);
|
|
if (!pmbox) {
|
|
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
|
|
return MBX_SUCCESS;
|
|
}
|
|
}
|
|
|
|
if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
|
|
pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
|
|
if(!pmbox->vport) {
|
|
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
|
|
lpfc_printf_log(phba, KERN_ERR,
|
|
LOG_MBOX | LOG_VPORT,
|
|
"1806 Mbox x%x failed. No vport\n",
|
|
pmbox->u.mb.mbxCommand);
|
|
dump_stack();
|
|
goto out_not_finished;
|
|
}
|
|
}
|
|
|
|
/* If the PCI channel is in offline state, do not post mbox. */
|
|
if (unlikely(pci_channel_offline(phba->pcidev))) {
|
|
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
|
|
goto out_not_finished;
|
|
}
|
|
|
|
/* If HBA has a deferred error attention, fail the iocb. */
|
|
if (unlikely(phba->hba_flag & DEFER_ERATT)) {
|
|
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
|
|
goto out_not_finished;
|
|
}
|
|
|
|
psli = &phba->sli;
|
|
|
|
mb = &pmbox->u.mb;
|
|
status = MBX_SUCCESS;
|
|
|
|
if (phba->link_state == LPFC_HBA_ERROR) {
|
|
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
|
|
|
|
/* Mbox command <mbxCommand> cannot issue */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"(%d):0311 Mailbox command x%x cannot "
|
|
"issue Data: x%x x%x\n",
|
|
pmbox->vport ? pmbox->vport->vpi : 0,
|
|
pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
|
|
goto out_not_finished;
|
|
}
|
|
|
|
if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
|
|
!(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
|
|
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"(%d):2528 Mailbox command x%x cannot "
|
|
"issue Data: x%x x%x\n",
|
|
pmbox->vport ? pmbox->vport->vpi : 0,
|
|
pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
|
|
goto out_not_finished;
|
|
}
|
|
|
|
if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
|
|
/* Polling for a mbox command when another one is already active
|
|
* is not allowed in SLI. Also, the driver must have established
|
|
* SLI2 mode to queue and process multiple mbox commands.
|
|
*/
|
|
|
|
if (flag & MBX_POLL) {
|
|
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
|
|
|
|
/* Mbox command <mbxCommand> cannot issue */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"(%d):2529 Mailbox command x%x "
|
|
"cannot issue Data: x%x x%x\n",
|
|
pmbox->vport ? pmbox->vport->vpi : 0,
|
|
pmbox->u.mb.mbxCommand,
|
|
psli->sli_flag, flag);
|
|
goto out_not_finished;
|
|
}
|
|
|
|
if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
|
|
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
|
|
/* Mbox command <mbxCommand> cannot issue */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"(%d):2530 Mailbox command x%x "
|
|
"cannot issue Data: x%x x%x\n",
|
|
pmbox->vport ? pmbox->vport->vpi : 0,
|
|
pmbox->u.mb.mbxCommand,
|
|
psli->sli_flag, flag);
|
|
goto out_not_finished;
|
|
}
|
|
|
|
/* Another mailbox command is still being processed, queue this
|
|
* command to be processed later.
|
|
*/
|
|
lpfc_mbox_put(phba, pmbox);
|
|
|
|
/* Mbox cmd issue - BUSY */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
|
|
"(%d):0308 Mbox cmd issue - BUSY Data: "
|
|
"x%x x%x x%x x%x\n",
|
|
pmbox->vport ? pmbox->vport->vpi : 0xffffff,
|
|
mb->mbxCommand, phba->pport->port_state,
|
|
psli->sli_flag, flag);
|
|
|
|
psli->slistat.mbox_busy++;
|
|
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
|
|
|
|
if (pmbox->vport) {
|
|
lpfc_debugfs_disc_trc(pmbox->vport,
|
|
LPFC_DISC_TRC_MBOX_VPORT,
|
|
"MBOX Bsy vport: cmd:x%x mb:x%x x%x",
|
|
(uint32_t)mb->mbxCommand,
|
|
mb->un.varWords[0], mb->un.varWords[1]);
|
|
}
|
|
else {
|
|
lpfc_debugfs_disc_trc(phba->pport,
|
|
LPFC_DISC_TRC_MBOX,
|
|
"MBOX Bsy: cmd:x%x mb:x%x x%x",
|
|
(uint32_t)mb->mbxCommand,
|
|
mb->un.varWords[0], mb->un.varWords[1]);
|
|
}
|
|
|
|
return MBX_BUSY;
|
|
}
|
|
|
|
psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
|
|
|
|
/* If we are not polling, we MUST be in SLI2 mode */
|
|
if (flag != MBX_POLL) {
|
|
if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
|
|
(mb->mbxCommand != MBX_KILL_BOARD)) {
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
|
|
/* Mbox command <mbxCommand> cannot issue */
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"(%d):2531 Mailbox command x%x "
|
|
"cannot issue Data: x%x x%x\n",
|
|
pmbox->vport ? pmbox->vport->vpi : 0,
|
|
pmbox->u.mb.mbxCommand,
|
|
psli->sli_flag, flag);
|
|
goto out_not_finished;
|
|
}
|
|
/* timeout active mbox command */
|
|
mod_timer(&psli->mbox_tmo, (jiffies +
|
|
(HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
|
|
}
|
|
|
|
/* Mailbox cmd <cmd> issue */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
|
|
"(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
|
|
"x%x\n",
|
|
pmbox->vport ? pmbox->vport->vpi : 0,
|
|
mb->mbxCommand, phba->pport->port_state,
|
|
psli->sli_flag, flag);
|
|
|
|
if (mb->mbxCommand != MBX_HEARTBEAT) {
|
|
if (pmbox->vport) {
|
|
lpfc_debugfs_disc_trc(pmbox->vport,
|
|
LPFC_DISC_TRC_MBOX_VPORT,
|
|
"MBOX Send vport: cmd:x%x mb:x%x x%x",
|
|
(uint32_t)mb->mbxCommand,
|
|
mb->un.varWords[0], mb->un.varWords[1]);
|
|
}
|
|
else {
|
|
lpfc_debugfs_disc_trc(phba->pport,
|
|
LPFC_DISC_TRC_MBOX,
|
|
"MBOX Send: cmd:x%x mb:x%x x%x",
|
|
(uint32_t)mb->mbxCommand,
|
|
mb->un.varWords[0], mb->un.varWords[1]);
|
|
}
|
|
}
|
|
|
|
psli->slistat.mbox_cmd++;
|
|
evtctr = psli->slistat.mbox_event;
|
|
|
|
/* next set own bit for the adapter and copy over command word */
|
|
mb->mbxOwner = OWN_CHIP;
|
|
|
|
if (psli->sli_flag & LPFC_SLI_ACTIVE) {
|
|
/* First copy command data to host SLIM area */
|
|
lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
|
|
} else {
|
|
if (mb->mbxCommand == MBX_CONFIG_PORT) {
|
|
/* copy command data into host mbox for cmpl */
|
|
lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
|
|
}
|
|
|
|
/* First copy mbox command data to HBA SLIM, skip past first
|
|
word */
|
|
to_slim = phba->MBslimaddr + sizeof (uint32_t);
|
|
lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
|
|
MAILBOX_CMD_SIZE - sizeof (uint32_t));
|
|
|
|
/* Next copy over first word, with mbxOwner set */
|
|
ldata = *((uint32_t *)mb);
|
|
to_slim = phba->MBslimaddr;
|
|
writel(ldata, to_slim);
|
|
readl(to_slim); /* flush */
|
|
|
|
if (mb->mbxCommand == MBX_CONFIG_PORT) {
|
|
/* switch over to host mailbox */
|
|
psli->sli_flag |= LPFC_SLI_ACTIVE;
|
|
}
|
|
}
|
|
|
|
wmb();
|
|
|
|
switch (flag) {
|
|
case MBX_NOWAIT:
|
|
/* Set up reference to mailbox command */
|
|
psli->mbox_active = pmbox;
|
|
/* Interrupt board to do it */
|
|
writel(CA_MBATT, phba->CAregaddr);
|
|
readl(phba->CAregaddr); /* flush */
|
|
/* Don't wait for it to finish, just return */
|
|
break;
|
|
|
|
case MBX_POLL:
|
|
/* Set up null reference to mailbox command */
|
|
psli->mbox_active = NULL;
|
|
/* Interrupt board to do it */
|
|
writel(CA_MBATT, phba->CAregaddr);
|
|
readl(phba->CAregaddr); /* flush */
|
|
|
|
if (psli->sli_flag & LPFC_SLI_ACTIVE) {
|
|
/* First read mbox status word */
|
|
word0 = *((uint32_t *)phba->mbox);
|
|
word0 = le32_to_cpu(word0);
|
|
} else {
|
|
/* First read mbox status word */
|
|
word0 = readl(phba->MBslimaddr);
|
|
}
|
|
|
|
/* Read the HBA Host Attention Register */
|
|
ha_copy = readl(phba->HAregaddr);
|
|
timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
|
|
mb->mbxCommand) *
|
|
1000) + jiffies;
|
|
i = 0;
|
|
/* Wait for command to complete */
|
|
while (((word0 & OWN_CHIP) == OWN_CHIP) ||
|
|
(!(ha_copy & HA_MBATT) &&
|
|
(phba->link_state > LPFC_WARM_START))) {
|
|
if (time_after(jiffies, timeout)) {
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
spin_unlock_irqrestore(&phba->hbalock,
|
|
drvr_flag);
|
|
goto out_not_finished;
|
|
}
|
|
|
|
/* Check if we took a mbox interrupt while we were
|
|
polling */
|
|
if (((word0 & OWN_CHIP) != OWN_CHIP)
|
|
&& (evtctr != psli->slistat.mbox_event))
|
|
break;
|
|
|
|
if (i++ > 10) {
|
|
spin_unlock_irqrestore(&phba->hbalock,
|
|
drvr_flag);
|
|
msleep(1);
|
|
spin_lock_irqsave(&phba->hbalock, drvr_flag);
|
|
}
|
|
|
|
if (psli->sli_flag & LPFC_SLI_ACTIVE) {
|
|
/* First copy command data */
|
|
word0 = *((uint32_t *)phba->mbox);
|
|
word0 = le32_to_cpu(word0);
|
|
if (mb->mbxCommand == MBX_CONFIG_PORT) {
|
|
MAILBOX_t *slimmb;
|
|
uint32_t slimword0;
|
|
/* Check real SLIM for any errors */
|
|
slimword0 = readl(phba->MBslimaddr);
|
|
slimmb = (MAILBOX_t *) & slimword0;
|
|
if (((slimword0 & OWN_CHIP) != OWN_CHIP)
|
|
&& slimmb->mbxStatus) {
|
|
psli->sli_flag &=
|
|
~LPFC_SLI_ACTIVE;
|
|
word0 = slimword0;
|
|
}
|
|
}
|
|
} else {
|
|
/* First copy command data */
|
|
word0 = readl(phba->MBslimaddr);
|
|
}
|
|
/* Read the HBA Host Attention Register */
|
|
ha_copy = readl(phba->HAregaddr);
|
|
}
|
|
|
|
if (psli->sli_flag & LPFC_SLI_ACTIVE) {
|
|
/* copy results back to user */
|
|
lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
|
|
} else {
|
|
/* First copy command data */
|
|
lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
|
|
MAILBOX_CMD_SIZE);
|
|
if ((mb->mbxCommand == MBX_DUMP_MEMORY) &&
|
|
pmbox->context2) {
|
|
lpfc_memcpy_from_slim((void *)pmbox->context2,
|
|
phba->MBslimaddr + DMP_RSP_OFFSET,
|
|
mb->un.varDmp.word_cnt);
|
|
}
|
|
}
|
|
|
|
writel(HA_MBATT, phba->HAregaddr);
|
|
readl(phba->HAregaddr); /* flush */
|
|
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
status = mb->mbxStatus;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
|
|
return status;
|
|
|
|
out_not_finished:
|
|
if (processing_queue) {
|
|
pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
|
|
lpfc_mbox_cmpl_put(phba, pmbox);
|
|
}
|
|
return MBX_NOT_FINISHED;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* The function blocks the posting of SLI4 asynchronous mailbox commands from
|
|
* the driver internal pending mailbox queue. It will then try to wait out the
|
|
* possible outstanding mailbox command before return.
|
|
*
|
|
* Returns:
|
|
* 0 - the outstanding mailbox command completed; otherwise, the wait for
|
|
* the outstanding mailbox command timed out.
|
|
**/
|
|
static int
|
|
lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
uint8_t actcmd = MBX_HEARTBEAT;
|
|
int rc = 0;
|
|
unsigned long timeout;
|
|
|
|
/* Mark the asynchronous mailbox command posting as blocked */
|
|
spin_lock_irq(&phba->hbalock);
|
|
psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
|
|
if (phba->sli.mbox_active)
|
|
actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
/* Determine how long we might wait for the active mailbox
|
|
* command to be gracefully completed by firmware.
|
|
*/
|
|
timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
|
|
jiffies;
|
|
/* Wait for the outstnading mailbox command to complete */
|
|
while (phba->sli.mbox_active) {
|
|
/* Check active mailbox complete status every 2ms */
|
|
msleep(2);
|
|
if (time_after(jiffies, timeout)) {
|
|
/* Timeout, marked the outstanding cmd not complete */
|
|
rc = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Can not cleanly block async mailbox command, fails it */
|
|
if (rc) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* The function unblocks and resume posting of SLI4 asynchronous mailbox
|
|
* commands from the driver internal pending mailbox queue. It makes sure
|
|
* that there is no outstanding mailbox command before resuming posting
|
|
* asynchronous mailbox commands. If, for any reason, there is outstanding
|
|
* mailbox command, it will try to wait it out before resuming asynchronous
|
|
* mailbox command posting.
|
|
**/
|
|
static void
|
|
lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
|
|
/* Asynchronous mailbox posting is not blocked, do nothing */
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return;
|
|
}
|
|
|
|
/* Outstanding synchronous mailbox command is guaranteed to be done,
|
|
* successful or timeout, after timing-out the outstanding mailbox
|
|
* command shall always be removed, so just unblock posting async
|
|
* mailbox command and resume
|
|
*/
|
|
psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* wake up worker thread to post asynchronlous mailbox command */
|
|
lpfc_worker_wake_up(phba);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
|
|
* @phba: Pointer to HBA context object.
|
|
* @mboxq: Pointer to mailbox object.
|
|
*
|
|
* The function posts a mailbox to the port. The mailbox is expected
|
|
* to be comletely filled in and ready for the port to operate on it.
|
|
* This routine executes a synchronous completion operation on the
|
|
* mailbox by polling for its completion.
|
|
*
|
|
* The caller must not be holding any locks when calling this routine.
|
|
*
|
|
* Returns:
|
|
* MBX_SUCCESS - mailbox posted successfully
|
|
* Any of the MBX error values.
|
|
**/
|
|
static int
|
|
lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
|
|
{
|
|
int rc = MBX_SUCCESS;
|
|
unsigned long iflag;
|
|
uint32_t db_ready;
|
|
uint32_t mcqe_status;
|
|
uint32_t mbx_cmnd;
|
|
unsigned long timeout;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_mqe *mb = &mboxq->u.mqe;
|
|
struct lpfc_bmbx_create *mbox_rgn;
|
|
struct dma_address *dma_address;
|
|
struct lpfc_register bmbx_reg;
|
|
|
|
/*
|
|
* Only one mailbox can be active to the bootstrap mailbox region
|
|
* at a time and there is no queueing provided.
|
|
*/
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"(%d):2532 Mailbox command x%x (x%x) "
|
|
"cannot issue Data: x%x x%x\n",
|
|
mboxq->vport ? mboxq->vport->vpi : 0,
|
|
mboxq->u.mb.mbxCommand,
|
|
lpfc_sli4_mbox_opcode_get(phba, mboxq),
|
|
psli->sli_flag, MBX_POLL);
|
|
return MBXERR_ERROR;
|
|
}
|
|
/* The server grabs the token and owns it until release */
|
|
psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
|
|
phba->sli.mbox_active = mboxq;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
|
|
/*
|
|
* Initialize the bootstrap memory region to avoid stale data areas
|
|
* in the mailbox post. Then copy the caller's mailbox contents to
|
|
* the bmbx mailbox region.
|
|
*/
|
|
mbx_cmnd = bf_get(lpfc_mqe_command, mb);
|
|
memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
|
|
lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
|
|
sizeof(struct lpfc_mqe));
|
|
|
|
/* Post the high mailbox dma address to the port and wait for ready. */
|
|
dma_address = &phba->sli4_hba.bmbx.dma_address;
|
|
writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
|
|
|
|
timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
|
|
* 1000) + jiffies;
|
|
do {
|
|
bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
|
|
db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
|
|
if (!db_ready)
|
|
msleep(2);
|
|
|
|
if (time_after(jiffies, timeout)) {
|
|
rc = MBXERR_ERROR;
|
|
goto exit;
|
|
}
|
|
} while (!db_ready);
|
|
|
|
/* Post the low mailbox dma address to the port. */
|
|
writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
|
|
timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
|
|
* 1000) + jiffies;
|
|
do {
|
|
bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
|
|
db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
|
|
if (!db_ready)
|
|
msleep(2);
|
|
|
|
if (time_after(jiffies, timeout)) {
|
|
rc = MBXERR_ERROR;
|
|
goto exit;
|
|
}
|
|
} while (!db_ready);
|
|
|
|
/*
|
|
* Read the CQ to ensure the mailbox has completed.
|
|
* If so, update the mailbox status so that the upper layers
|
|
* can complete the request normally.
|
|
*/
|
|
lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
|
|
sizeof(struct lpfc_mqe));
|
|
mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
|
|
lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
|
|
sizeof(struct lpfc_mcqe));
|
|
mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
|
|
|
|
/* Prefix the mailbox status with range x4000 to note SLI4 status. */
|
|
if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
|
|
bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status);
|
|
rc = MBXERR_ERROR;
|
|
}
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
|
|
"(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
|
|
"Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
|
|
" x%x x%x CQ: x%x x%x x%x x%x\n",
|
|
mboxq->vport ? mboxq->vport->vpi : 0,
|
|
mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq),
|
|
bf_get(lpfc_mqe_status, mb),
|
|
mb->un.mb_words[0], mb->un.mb_words[1],
|
|
mb->un.mb_words[2], mb->un.mb_words[3],
|
|
mb->un.mb_words[4], mb->un.mb_words[5],
|
|
mb->un.mb_words[6], mb->un.mb_words[7],
|
|
mb->un.mb_words[8], mb->un.mb_words[9],
|
|
mb->un.mb_words[10], mb->un.mb_words[11],
|
|
mb->un.mb_words[12], mboxq->mcqe.word0,
|
|
mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
|
|
mboxq->mcqe.trailer);
|
|
exit:
|
|
/* We are holding the token, no needed for lock when release */
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
phba->sli.mbox_active = NULL;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
|
|
* @phba: Pointer to HBA context object.
|
|
* @pmbox: Pointer to mailbox object.
|
|
* @flag: Flag indicating how the mailbox need to be processed.
|
|
*
|
|
* This function is called by discovery code and HBA management code to submit
|
|
* a mailbox command to firmware with SLI-4 interface spec.
|
|
*
|
|
* Return codes the caller owns the mailbox command after the return of the
|
|
* function.
|
|
**/
|
|
static int
|
|
lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
|
|
uint32_t flag)
|
|
{
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
unsigned long iflags;
|
|
int rc;
|
|
|
|
rc = lpfc_mbox_dev_check(phba);
|
|
if (unlikely(rc)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"(%d):2544 Mailbox command x%x (x%x) "
|
|
"cannot issue Data: x%x x%x\n",
|
|
mboxq->vport ? mboxq->vport->vpi : 0,
|
|
mboxq->u.mb.mbxCommand,
|
|
lpfc_sli4_mbox_opcode_get(phba, mboxq),
|
|
psli->sli_flag, flag);
|
|
goto out_not_finished;
|
|
}
|
|
|
|
/* Detect polling mode and jump to a handler */
|
|
if (!phba->sli4_hba.intr_enable) {
|
|
if (flag == MBX_POLL)
|
|
rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
|
|
else
|
|
rc = -EIO;
|
|
if (rc != MBX_SUCCESS)
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"(%d):2541 Mailbox command x%x "
|
|
"(x%x) cannot issue Data: x%x x%x\n",
|
|
mboxq->vport ? mboxq->vport->vpi : 0,
|
|
mboxq->u.mb.mbxCommand,
|
|
lpfc_sli4_mbox_opcode_get(phba, mboxq),
|
|
psli->sli_flag, flag);
|
|
return rc;
|
|
} else if (flag == MBX_POLL) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
|
|
"(%d):2542 Try to issue mailbox command "
|
|
"x%x (x%x) synchronously ahead of async"
|
|
"mailbox command queue: x%x x%x\n",
|
|
mboxq->vport ? mboxq->vport->vpi : 0,
|
|
mboxq->u.mb.mbxCommand,
|
|
lpfc_sli4_mbox_opcode_get(phba, mboxq),
|
|
psli->sli_flag, flag);
|
|
/* Try to block the asynchronous mailbox posting */
|
|
rc = lpfc_sli4_async_mbox_block(phba);
|
|
if (!rc) {
|
|
/* Successfully blocked, now issue sync mbox cmd */
|
|
rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
|
|
if (rc != MBX_SUCCESS)
|
|
lpfc_printf_log(phba, KERN_ERR,
|
|
LOG_MBOX | LOG_SLI,
|
|
"(%d):2597 Mailbox command "
|
|
"x%x (x%x) cannot issue "
|
|
"Data: x%x x%x\n",
|
|
mboxq->vport ?
|
|
mboxq->vport->vpi : 0,
|
|
mboxq->u.mb.mbxCommand,
|
|
lpfc_sli4_mbox_opcode_get(phba,
|
|
mboxq),
|
|
psli->sli_flag, flag);
|
|
/* Unblock the async mailbox posting afterward */
|
|
lpfc_sli4_async_mbox_unblock(phba);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/* Now, interrupt mode asynchrous mailbox command */
|
|
rc = lpfc_mbox_cmd_check(phba, mboxq);
|
|
if (rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"(%d):2543 Mailbox command x%x (x%x) "
|
|
"cannot issue Data: x%x x%x\n",
|
|
mboxq->vport ? mboxq->vport->vpi : 0,
|
|
mboxq->u.mb.mbxCommand,
|
|
lpfc_sli4_mbox_opcode_get(phba, mboxq),
|
|
psli->sli_flag, flag);
|
|
goto out_not_finished;
|
|
}
|
|
|
|
/* Put the mailbox command to the driver internal FIFO */
|
|
psli->slistat.mbox_busy++;
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
lpfc_mbox_put(phba, mboxq);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
|
|
"(%d):0354 Mbox cmd issue - Enqueue Data: "
|
|
"x%x (x%x) x%x x%x x%x\n",
|
|
mboxq->vport ? mboxq->vport->vpi : 0xffffff,
|
|
bf_get(lpfc_mqe_command, &mboxq->u.mqe),
|
|
lpfc_sli4_mbox_opcode_get(phba, mboxq),
|
|
phba->pport->port_state,
|
|
psli->sli_flag, MBX_NOWAIT);
|
|
/* Wake up worker thread to transport mailbox command from head */
|
|
lpfc_worker_wake_up(phba);
|
|
|
|
return MBX_BUSY;
|
|
|
|
out_not_finished:
|
|
return MBX_NOT_FINISHED;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called by worker thread to send a mailbox command to
|
|
* SLI4 HBA firmware.
|
|
*
|
|
**/
|
|
int
|
|
lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
LPFC_MBOXQ_t *mboxq;
|
|
int rc = MBX_SUCCESS;
|
|
unsigned long iflags;
|
|
struct lpfc_mqe *mqe;
|
|
uint32_t mbx_cmnd;
|
|
|
|
/* Check interrupt mode before post async mailbox command */
|
|
if (unlikely(!phba->sli4_hba.intr_enable))
|
|
return MBX_NOT_FINISHED;
|
|
|
|
/* Check for mailbox command service token */
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
return MBX_NOT_FINISHED;
|
|
}
|
|
if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
return MBX_NOT_FINISHED;
|
|
}
|
|
if (unlikely(phba->sli.mbox_active)) {
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"0384 There is pending active mailbox cmd\n");
|
|
return MBX_NOT_FINISHED;
|
|
}
|
|
/* Take the mailbox command service token */
|
|
psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
|
|
|
|
/* Get the next mailbox command from head of queue */
|
|
mboxq = lpfc_mbox_get(phba);
|
|
|
|
/* If no more mailbox command waiting for post, we're done */
|
|
if (!mboxq) {
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
return MBX_SUCCESS;
|
|
}
|
|
phba->sli.mbox_active = mboxq;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
|
|
/* Check device readiness for posting mailbox command */
|
|
rc = lpfc_mbox_dev_check(phba);
|
|
if (unlikely(rc))
|
|
/* Driver clean routine will clean up pending mailbox */
|
|
goto out_not_finished;
|
|
|
|
/* Prepare the mbox command to be posted */
|
|
mqe = &mboxq->u.mqe;
|
|
mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
|
|
|
|
/* Start timer for the mbox_tmo and log some mailbox post messages */
|
|
mod_timer(&psli->mbox_tmo, (jiffies +
|
|
(HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd))));
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
|
|
"(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
|
|
"x%x x%x\n",
|
|
mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
|
|
lpfc_sli4_mbox_opcode_get(phba, mboxq),
|
|
phba->pport->port_state, psli->sli_flag);
|
|
|
|
if (mbx_cmnd != MBX_HEARTBEAT) {
|
|
if (mboxq->vport) {
|
|
lpfc_debugfs_disc_trc(mboxq->vport,
|
|
LPFC_DISC_TRC_MBOX_VPORT,
|
|
"MBOX Send vport: cmd:x%x mb:x%x x%x",
|
|
mbx_cmnd, mqe->un.mb_words[0],
|
|
mqe->un.mb_words[1]);
|
|
} else {
|
|
lpfc_debugfs_disc_trc(phba->pport,
|
|
LPFC_DISC_TRC_MBOX,
|
|
"MBOX Send: cmd:x%x mb:x%x x%x",
|
|
mbx_cmnd, mqe->un.mb_words[0],
|
|
mqe->un.mb_words[1]);
|
|
}
|
|
}
|
|
psli->slistat.mbox_cmd++;
|
|
|
|
/* Post the mailbox command to the port */
|
|
rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
|
|
if (rc != MBX_SUCCESS) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
|
|
"(%d):2533 Mailbox command x%x (x%x) "
|
|
"cannot issue Data: x%x x%x\n",
|
|
mboxq->vport ? mboxq->vport->vpi : 0,
|
|
mboxq->u.mb.mbxCommand,
|
|
lpfc_sli4_mbox_opcode_get(phba, mboxq),
|
|
psli->sli_flag, MBX_NOWAIT);
|
|
goto out_not_finished;
|
|
}
|
|
|
|
return rc;
|
|
|
|
out_not_finished:
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
|
|
__lpfc_mbox_cmpl_put(phba, mboxq);
|
|
/* Release the token */
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
phba->sli.mbox_active = NULL;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
|
|
return MBX_NOT_FINISHED;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
|
|
* @phba: Pointer to HBA context object.
|
|
* @pmbox: Pointer to mailbox object.
|
|
* @flag: Flag indicating how the mailbox need to be processed.
|
|
*
|
|
* This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
|
|
* the API jump table function pointer from the lpfc_hba struct.
|
|
*
|
|
* Return codes the caller owns the mailbox command after the return of the
|
|
* function.
|
|
**/
|
|
int
|
|
lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
|
|
{
|
|
return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
|
|
}
|
|
|
|
/**
|
|
* lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
|
|
* @phba: The hba struct for which this call is being executed.
|
|
* @dev_grp: The HBA PCI-Device group number.
|
|
*
|
|
* This routine sets up the mbox interface API function jump table in @phba
|
|
* struct.
|
|
* Returns: 0 - success, -ENODEV - failure.
|
|
**/
|
|
int
|
|
lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
|
|
{
|
|
|
|
switch (dev_grp) {
|
|
case LPFC_PCI_DEV_LP:
|
|
phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
|
|
phba->lpfc_sli_handle_slow_ring_event =
|
|
lpfc_sli_handle_slow_ring_event_s3;
|
|
phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
|
|
phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
|
|
phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
|
|
break;
|
|
case LPFC_PCI_DEV_OC:
|
|
phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
|
|
phba->lpfc_sli_handle_slow_ring_event =
|
|
lpfc_sli_handle_slow_ring_event_s4;
|
|
phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
|
|
phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
|
|
phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
|
|
break;
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"1420 Invalid HBA PCI-device group: 0x%x\n",
|
|
dev_grp);
|
|
return -ENODEV;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* __lpfc_sli_ringtx_put - Add an iocb to the txq
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @piocb: Pointer to address of newly added command iocb.
|
|
*
|
|
* This function is called with hbalock held to add a command
|
|
* iocb to the txq when SLI layer cannot submit the command iocb
|
|
* to the ring.
|
|
**/
|
|
static void
|
|
__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *piocb)
|
|
{
|
|
/* Insert the caller's iocb in the txq tail for later processing. */
|
|
list_add_tail(&piocb->list, &pring->txq);
|
|
pring->txq_cnt++;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_next_iocb - Get the next iocb in the txq
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @piocb: Pointer to address of newly added command iocb.
|
|
*
|
|
* This function is called with hbalock held before a new
|
|
* iocb is submitted to the firmware. This function checks
|
|
* txq to flush the iocbs in txq to Firmware before
|
|
* submitting new iocbs to the Firmware.
|
|
* If there are iocbs in the txq which need to be submitted
|
|
* to firmware, lpfc_sli_next_iocb returns the first element
|
|
* of the txq after dequeuing it from txq.
|
|
* If there is no iocb in the txq then the function will return
|
|
* *piocb and *piocb is set to NULL. Caller needs to check
|
|
* *piocb to find if there are more commands in the txq.
|
|
**/
|
|
static struct lpfc_iocbq *
|
|
lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq **piocb)
|
|
{
|
|
struct lpfc_iocbq * nextiocb;
|
|
|
|
nextiocb = lpfc_sli_ringtx_get(phba, pring);
|
|
if (!nextiocb) {
|
|
nextiocb = *piocb;
|
|
*piocb = NULL;
|
|
}
|
|
|
|
return nextiocb;
|
|
}
|
|
|
|
/**
|
|
* __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
|
|
* @phba: Pointer to HBA context object.
|
|
* @ring_number: SLI ring number to issue iocb on.
|
|
* @piocb: Pointer to command iocb.
|
|
* @flag: Flag indicating if this command can be put into txq.
|
|
*
|
|
* __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
|
|
* an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
|
|
* recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
|
|
* flag is turned on, the function returns IOCB_ERROR. When the link is down,
|
|
* this function allows only iocbs for posting buffers. This function finds
|
|
* next available slot in the command ring and posts the command to the
|
|
* available slot and writes the port attention register to request HBA start
|
|
* processing new iocb. If there is no slot available in the ring and
|
|
* flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
|
|
* the function returns IOCB_BUSY.
|
|
*
|
|
* This function is called with hbalock held. The function will return success
|
|
* after it successfully submit the iocb to firmware or after adding to the
|
|
* txq.
|
|
**/
|
|
static int
|
|
__lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
|
|
struct lpfc_iocbq *piocb, uint32_t flag)
|
|
{
|
|
struct lpfc_iocbq *nextiocb;
|
|
IOCB_t *iocb;
|
|
struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
|
|
|
|
if (piocb->iocb_cmpl && (!piocb->vport) &&
|
|
(piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
|
|
(piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
|
|
lpfc_printf_log(phba, KERN_ERR,
|
|
LOG_SLI | LOG_VPORT,
|
|
"1807 IOCB x%x failed. No vport\n",
|
|
piocb->iocb.ulpCommand);
|
|
dump_stack();
|
|
return IOCB_ERROR;
|
|
}
|
|
|
|
|
|
/* If the PCI channel is in offline state, do not post iocbs. */
|
|
if (unlikely(pci_channel_offline(phba->pcidev)))
|
|
return IOCB_ERROR;
|
|
|
|
/* If HBA has a deferred error attention, fail the iocb. */
|
|
if (unlikely(phba->hba_flag & DEFER_ERATT))
|
|
return IOCB_ERROR;
|
|
|
|
/*
|
|
* We should never get an IOCB if we are in a < LINK_DOWN state
|
|
*/
|
|
if (unlikely(phba->link_state < LPFC_LINK_DOWN))
|
|
return IOCB_ERROR;
|
|
|
|
/*
|
|
* Check to see if we are blocking IOCB processing because of a
|
|
* outstanding event.
|
|
*/
|
|
if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
|
|
goto iocb_busy;
|
|
|
|
if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
|
|
/*
|
|
* Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
|
|
* can be issued if the link is not up.
|
|
*/
|
|
switch (piocb->iocb.ulpCommand) {
|
|
case CMD_GEN_REQUEST64_CR:
|
|
case CMD_GEN_REQUEST64_CX:
|
|
if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
|
|
(piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
|
|
FC_RCTL_DD_UNSOL_CMD) ||
|
|
(piocb->iocb.un.genreq64.w5.hcsw.Type !=
|
|
MENLO_TRANSPORT_TYPE))
|
|
|
|
goto iocb_busy;
|
|
break;
|
|
case CMD_QUE_RING_BUF_CN:
|
|
case CMD_QUE_RING_BUF64_CN:
|
|
/*
|
|
* For IOCBs, like QUE_RING_BUF, that have no rsp ring
|
|
* completion, iocb_cmpl MUST be 0.
|
|
*/
|
|
if (piocb->iocb_cmpl)
|
|
piocb->iocb_cmpl = NULL;
|
|
/*FALLTHROUGH*/
|
|
case CMD_CREATE_XRI_CR:
|
|
case CMD_CLOSE_XRI_CN:
|
|
case CMD_CLOSE_XRI_CX:
|
|
break;
|
|
default:
|
|
goto iocb_busy;
|
|
}
|
|
|
|
/*
|
|
* For FCP commands, we must be in a state where we can process link
|
|
* attention events.
|
|
*/
|
|
} else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
|
|
!(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
|
|
goto iocb_busy;
|
|
}
|
|
|
|
while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
|
|
(nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
|
|
lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
|
|
|
|
if (iocb)
|
|
lpfc_sli_update_ring(phba, pring);
|
|
else
|
|
lpfc_sli_update_full_ring(phba, pring);
|
|
|
|
if (!piocb)
|
|
return IOCB_SUCCESS;
|
|
|
|
goto out_busy;
|
|
|
|
iocb_busy:
|
|
pring->stats.iocb_cmd_delay++;
|
|
|
|
out_busy:
|
|
|
|
if (!(flag & SLI_IOCB_RET_IOCB)) {
|
|
__lpfc_sli_ringtx_put(phba, pring, piocb);
|
|
return IOCB_SUCCESS;
|
|
}
|
|
|
|
return IOCB_BUSY;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
|
|
* @phba: Pointer to HBA context object.
|
|
* @piocb: Pointer to command iocb.
|
|
* @sglq: Pointer to the scatter gather queue object.
|
|
*
|
|
* This routine converts the bpl or bde that is in the IOCB
|
|
* to a sgl list for the sli4 hardware. The physical address
|
|
* of the bpl/bde is converted back to a virtual address.
|
|
* If the IOCB contains a BPL then the list of BDE's is
|
|
* converted to sli4_sge's. If the IOCB contains a single
|
|
* BDE then it is converted to a single sli_sge.
|
|
* The IOCB is still in cpu endianess so the contents of
|
|
* the bpl can be used without byte swapping.
|
|
*
|
|
* Returns valid XRI = Success, NO_XRI = Failure.
|
|
**/
|
|
static uint16_t
|
|
lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
|
|
struct lpfc_sglq *sglq)
|
|
{
|
|
uint16_t xritag = NO_XRI;
|
|
struct ulp_bde64 *bpl = NULL;
|
|
struct ulp_bde64 bde;
|
|
struct sli4_sge *sgl = NULL;
|
|
IOCB_t *icmd;
|
|
int numBdes = 0;
|
|
int i = 0;
|
|
|
|
if (!piocbq || !sglq)
|
|
return xritag;
|
|
|
|
sgl = (struct sli4_sge *)sglq->sgl;
|
|
icmd = &piocbq->iocb;
|
|
if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
|
|
numBdes = icmd->un.genreq64.bdl.bdeSize /
|
|
sizeof(struct ulp_bde64);
|
|
/* The addrHigh and addrLow fields within the IOCB
|
|
* have not been byteswapped yet so there is no
|
|
* need to swap them back.
|
|
*/
|
|
bpl = (struct ulp_bde64 *)
|
|
((struct lpfc_dmabuf *)piocbq->context3)->virt;
|
|
|
|
if (!bpl)
|
|
return xritag;
|
|
|
|
for (i = 0; i < numBdes; i++) {
|
|
/* Should already be byte swapped. */
|
|
sgl->addr_hi = bpl->addrHigh;
|
|
sgl->addr_lo = bpl->addrLow;
|
|
|
|
if ((i+1) == numBdes)
|
|
bf_set(lpfc_sli4_sge_last, sgl, 1);
|
|
else
|
|
bf_set(lpfc_sli4_sge_last, sgl, 0);
|
|
sgl->word2 = cpu_to_le32(sgl->word2);
|
|
/* swap the size field back to the cpu so we
|
|
* can assign it to the sgl.
|
|
*/
|
|
bde.tus.w = le32_to_cpu(bpl->tus.w);
|
|
sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
|
|
bpl++;
|
|
sgl++;
|
|
}
|
|
} else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
|
|
/* The addrHigh and addrLow fields of the BDE have not
|
|
* been byteswapped yet so they need to be swapped
|
|
* before putting them in the sgl.
|
|
*/
|
|
sgl->addr_hi =
|
|
cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
|
|
sgl->addr_lo =
|
|
cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
|
|
bf_set(lpfc_sli4_sge_last, sgl, 1);
|
|
sgl->word2 = cpu_to_le32(sgl->word2);
|
|
sgl->sge_len =
|
|
cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
|
|
}
|
|
return sglq->sli4_xritag;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This routine performs a round robin SCSI command to SLI4 FCP WQ index
|
|
* distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
|
|
* held.
|
|
*
|
|
* Return: index into SLI4 fast-path FCP queue index.
|
|
**/
|
|
static uint32_t
|
|
lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
|
|
{
|
|
++phba->fcp_qidx;
|
|
if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
|
|
phba->fcp_qidx = 0;
|
|
|
|
return phba->fcp_qidx;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
|
|
* @phba: Pointer to HBA context object.
|
|
* @piocb: Pointer to command iocb.
|
|
* @wqe: Pointer to the work queue entry.
|
|
*
|
|
* This routine converts the iocb command to its Work Queue Entry
|
|
* equivalent. The wqe pointer should not have any fields set when
|
|
* this routine is called because it will memcpy over them.
|
|
* This routine does not set the CQ_ID or the WQEC bits in the
|
|
* wqe.
|
|
*
|
|
* Returns: 0 = Success, IOCB_ERROR = Failure.
|
|
**/
|
|
static int
|
|
lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
|
|
union lpfc_wqe *wqe)
|
|
{
|
|
uint32_t xmit_len = 0, total_len = 0;
|
|
uint8_t ct = 0;
|
|
uint32_t fip;
|
|
uint32_t abort_tag;
|
|
uint8_t command_type = ELS_COMMAND_NON_FIP;
|
|
uint8_t cmnd;
|
|
uint16_t xritag;
|
|
struct ulp_bde64 *bpl = NULL;
|
|
uint32_t els_id = ELS_ID_DEFAULT;
|
|
int numBdes, i;
|
|
struct ulp_bde64 bde;
|
|
|
|
fip = phba->hba_flag & HBA_FIP_SUPPORT;
|
|
/* The fcp commands will set command type */
|
|
if (iocbq->iocb_flag & LPFC_IO_FCP)
|
|
command_type = FCP_COMMAND;
|
|
else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
|
|
command_type = ELS_COMMAND_FIP;
|
|
else
|
|
command_type = ELS_COMMAND_NON_FIP;
|
|
|
|
/* Some of the fields are in the right position already */
|
|
memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
|
|
abort_tag = (uint32_t) iocbq->iotag;
|
|
xritag = iocbq->sli4_xritag;
|
|
wqe->words[7] = 0; /* The ct field has moved so reset */
|
|
/* words0-2 bpl convert bde */
|
|
if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
|
|
numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
|
|
sizeof(struct ulp_bde64);
|
|
bpl = (struct ulp_bde64 *)
|
|
((struct lpfc_dmabuf *)iocbq->context3)->virt;
|
|
if (!bpl)
|
|
return IOCB_ERROR;
|
|
|
|
/* Should already be byte swapped. */
|
|
wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
|
|
wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
|
|
/* swap the size field back to the cpu so we
|
|
* can assign it to the sgl.
|
|
*/
|
|
wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
|
|
xmit_len = wqe->generic.bde.tus.f.bdeSize;
|
|
total_len = 0;
|
|
for (i = 0; i < numBdes; i++) {
|
|
bde.tus.w = le32_to_cpu(bpl[i].tus.w);
|
|
total_len += bde.tus.f.bdeSize;
|
|
}
|
|
} else
|
|
xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
|
|
|
|
iocbq->iocb.ulpIoTag = iocbq->iotag;
|
|
cmnd = iocbq->iocb.ulpCommand;
|
|
|
|
switch (iocbq->iocb.ulpCommand) {
|
|
case CMD_ELS_REQUEST64_CR:
|
|
if (!iocbq->iocb.ulpLe) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2007 Only Limited Edition cmd Format"
|
|
" supported 0x%x\n",
|
|
iocbq->iocb.ulpCommand);
|
|
return IOCB_ERROR;
|
|
}
|
|
wqe->els_req.payload_len = xmit_len;
|
|
/* Els_reguest64 has a TMO */
|
|
bf_set(wqe_tmo, &wqe->els_req.wqe_com,
|
|
iocbq->iocb.ulpTimeout);
|
|
/* Need a VF for word 4 set the vf bit*/
|
|
bf_set(els_req64_vf, &wqe->els_req, 0);
|
|
/* And a VFID for word 12 */
|
|
bf_set(els_req64_vfid, &wqe->els_req, 0);
|
|
/*
|
|
* Set ct field to 3, indicates that the context_tag field
|
|
* contains the FCFI and remote N_Port_ID is
|
|
* in word 5.
|
|
*/
|
|
|
|
ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
|
|
bf_set(lpfc_wqe_gen_context, &wqe->generic,
|
|
iocbq->iocb.ulpContext);
|
|
|
|
bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct);
|
|
bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
|
|
/* CCP CCPE PV PRI in word10 were set in the memcpy */
|
|
|
|
if (command_type == ELS_COMMAND_FIP) {
|
|
els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
|
|
>> LPFC_FIP_ELS_ID_SHIFT);
|
|
}
|
|
bf_set(lpfc_wqe_gen_els_id, &wqe->generic, els_id);
|
|
|
|
break;
|
|
case CMD_XMIT_SEQUENCE64_CX:
|
|
bf_set(lpfc_wqe_gen_context, &wqe->generic,
|
|
iocbq->iocb.un.ulpWord[3]);
|
|
wqe->generic.word3 = 0;
|
|
bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
|
|
/* The entire sequence is transmitted for this IOCB */
|
|
xmit_len = total_len;
|
|
cmnd = CMD_XMIT_SEQUENCE64_CR;
|
|
case CMD_XMIT_SEQUENCE64_CR:
|
|
/* word3 iocb=io_tag32 wqe=payload_offset */
|
|
/* payload offset used for multilpe outstanding
|
|
* sequences on the same exchange
|
|
*/
|
|
wqe->words[3] = 0;
|
|
/* word4 relative_offset memcpy */
|
|
/* word5 r_ctl/df_ctl memcpy */
|
|
bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
|
|
wqe->xmit_sequence.xmit_len = xmit_len;
|
|
command_type = OTHER_COMMAND;
|
|
break;
|
|
case CMD_XMIT_BCAST64_CN:
|
|
/* word3 iocb=iotag32 wqe=payload_len */
|
|
wqe->words[3] = 0; /* no definition for this in wqe */
|
|
/* word4 iocb=rsvd wqe=rsvd */
|
|
/* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
|
|
/* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
|
|
bf_set(lpfc_wqe_gen_ct, &wqe->generic,
|
|
((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
|
|
break;
|
|
case CMD_FCP_IWRITE64_CR:
|
|
command_type = FCP_COMMAND_DATA_OUT;
|
|
/* The struct for wqe fcp_iwrite has 3 fields that are somewhat
|
|
* confusing.
|
|
* word3 is payload_len: byte offset to the sgl entry for the
|
|
* fcp_command.
|
|
* word4 is total xfer len, same as the IOCB->ulpParameter.
|
|
* word5 is initial xfer len 0 = wait for xfer-ready
|
|
*/
|
|
|
|
/* Always wait for xfer-ready before sending data */
|
|
wqe->fcp_iwrite.initial_xfer_len = 0;
|
|
/* word 4 (xfer length) should have been set on the memcpy */
|
|
|
|
/* allow write to fall through to read */
|
|
case CMD_FCP_IREAD64_CR:
|
|
/* FCP_CMD is always the 1st sgl entry */
|
|
wqe->fcp_iread.payload_len =
|
|
xmit_len + sizeof(struct fcp_rsp);
|
|
|
|
/* word 4 (xfer length) should have been set on the memcpy */
|
|
|
|
bf_set(lpfc_wqe_gen_erp, &wqe->generic,
|
|
iocbq->iocb.ulpFCP2Rcvy);
|
|
bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS);
|
|
/* The XC bit and the XS bit are similar. The driver never
|
|
* tracked whether or not the exchange was previouslly open.
|
|
* XC = Exchange create, 0 is create. 1 is already open.
|
|
* XS = link cmd: 1 do not close the exchange after command.
|
|
* XS = 0 close exchange when command completes.
|
|
* The only time we would not set the XC bit is when the XS bit
|
|
* is set and we are sending our 2nd or greater command on
|
|
* this exchange.
|
|
*/
|
|
/* Always open the exchange */
|
|
bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
|
|
|
|
wqe->words[10] &= 0xffff0000; /* zero out ebde count */
|
|
bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
|
|
break;
|
|
case CMD_FCP_ICMND64_CR:
|
|
/* Always open the exchange */
|
|
bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
|
|
|
|
wqe->words[4] = 0;
|
|
wqe->words[10] &= 0xffff0000; /* zero out ebde count */
|
|
bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
|
|
break;
|
|
case CMD_GEN_REQUEST64_CR:
|
|
/* word3 command length is described as byte offset to the
|
|
* rsp_data. Would always be 16, sizeof(struct sli4_sge)
|
|
* sgl[0] = cmnd
|
|
* sgl[1] = rsp.
|
|
*
|
|
*/
|
|
wqe->gen_req.command_len = xmit_len;
|
|
/* Word4 parameter copied in the memcpy */
|
|
/* Word5 [rctl, type, df_ctl, la] copied in memcpy */
|
|
/* word6 context tag copied in memcpy */
|
|
if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
|
|
ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2015 Invalid CT %x command 0x%x\n",
|
|
ct, iocbq->iocb.ulpCommand);
|
|
return IOCB_ERROR;
|
|
}
|
|
bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0);
|
|
bf_set(wqe_tmo, &wqe->gen_req.wqe_com,
|
|
iocbq->iocb.ulpTimeout);
|
|
|
|
bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
|
|
command_type = OTHER_COMMAND;
|
|
break;
|
|
case CMD_XMIT_ELS_RSP64_CX:
|
|
/* words0-2 BDE memcpy */
|
|
/* word3 iocb=iotag32 wqe=rsvd */
|
|
wqe->words[3] = 0;
|
|
/* word4 iocb=did wge=rsvd. */
|
|
wqe->words[4] = 0;
|
|
/* word5 iocb=rsvd wge=did */
|
|
bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
|
|
iocbq->iocb.un.elsreq64.remoteID);
|
|
|
|
bf_set(lpfc_wqe_gen_ct, &wqe->generic,
|
|
((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
|
|
|
|
bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
|
|
bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
|
|
if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
|
|
bf_set(lpfc_wqe_gen_context, &wqe->generic,
|
|
iocbq->vport->vpi + phba->vpi_base);
|
|
command_type = OTHER_COMMAND;
|
|
break;
|
|
case CMD_CLOSE_XRI_CN:
|
|
case CMD_ABORT_XRI_CN:
|
|
case CMD_ABORT_XRI_CX:
|
|
/* words 0-2 memcpy should be 0 rserved */
|
|
/* port will send abts */
|
|
if (iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
|
|
/*
|
|
* The link is down so the fw does not need to send abts
|
|
* on the wire.
|
|
*/
|
|
bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
|
|
else
|
|
bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
|
|
bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
|
|
wqe->words[5] = 0;
|
|
bf_set(lpfc_wqe_gen_ct, &wqe->generic,
|
|
((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
|
|
abort_tag = iocbq->iocb.un.acxri.abortIoTag;
|
|
/*
|
|
* The abort handler will send us CMD_ABORT_XRI_CN or
|
|
* CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
|
|
*/
|
|
bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX);
|
|
cmnd = CMD_ABORT_XRI_CX;
|
|
command_type = OTHER_COMMAND;
|
|
xritag = 0;
|
|
break;
|
|
case CMD_XMIT_BLS_RSP64_CX:
|
|
/* As BLS ABTS-ACC WQE is very different from other WQEs,
|
|
* we re-construct this WQE here based on information in
|
|
* iocbq from scratch.
|
|
*/
|
|
memset(wqe, 0, sizeof(union lpfc_wqe));
|
|
/* OX_ID is invariable to who sent ABTS to CT exchange */
|
|
bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
|
|
bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc));
|
|
if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) ==
|
|
LPFC_ABTS_UNSOL_INT) {
|
|
/* ABTS sent by initiator to CT exchange, the
|
|
* RX_ID field will be filled with the newly
|
|
* allocated responder XRI.
|
|
*/
|
|
bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
|
|
iocbq->sli4_xritag);
|
|
} else {
|
|
/* ABTS sent by responder to CT exchange, the
|
|
* RX_ID field will be filled with the responder
|
|
* RX_ID from ABTS.
|
|
*/
|
|
bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
|
|
bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc));
|
|
}
|
|
bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
|
|
bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
|
|
bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
|
|
iocbq->iocb.ulpContext);
|
|
/* Overwrite the pre-set comnd type with OTHER_COMMAND */
|
|
command_type = OTHER_COMMAND;
|
|
break;
|
|
case CMD_XRI_ABORTED_CX:
|
|
case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
|
|
/* words0-2 are all 0's no bde */
|
|
/* word3 and word4 are rsvrd */
|
|
wqe->words[3] = 0;
|
|
wqe->words[4] = 0;
|
|
/* word5 iocb=rsvd wge=did */
|
|
/* There is no remote port id in the IOCB? */
|
|
/* Let this fall through and fail */
|
|
case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
|
|
case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
|
|
case CMD_FCP_TRSP64_CX: /* Target mode rcv */
|
|
case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2014 Invalid command 0x%x\n",
|
|
iocbq->iocb.ulpCommand);
|
|
return IOCB_ERROR;
|
|
break;
|
|
|
|
}
|
|
bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag);
|
|
bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag);
|
|
wqe->generic.abort_tag = abort_tag;
|
|
bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type);
|
|
bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd);
|
|
bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass);
|
|
bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
|
|
* @phba: Pointer to HBA context object.
|
|
* @ring_number: SLI ring number to issue iocb on.
|
|
* @piocb: Pointer to command iocb.
|
|
* @flag: Flag indicating if this command can be put into txq.
|
|
*
|
|
* __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
|
|
* an iocb command to an HBA with SLI-4 interface spec.
|
|
*
|
|
* This function is called with hbalock held. The function will return success
|
|
* after it successfully submit the iocb to firmware or after adding to the
|
|
* txq.
|
|
**/
|
|
static int
|
|
__lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
|
|
struct lpfc_iocbq *piocb, uint32_t flag)
|
|
{
|
|
struct lpfc_sglq *sglq;
|
|
uint16_t xritag;
|
|
union lpfc_wqe wqe;
|
|
struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
|
|
|
|
if (piocb->sli4_xritag == NO_XRI) {
|
|
if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
|
|
piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
|
|
sglq = NULL;
|
|
else {
|
|
sglq = __lpfc_sli_get_sglq(phba);
|
|
if (!sglq)
|
|
return IOCB_ERROR;
|
|
piocb->sli4_xritag = sglq->sli4_xritag;
|
|
}
|
|
} else if (piocb->iocb_flag & LPFC_IO_FCP) {
|
|
sglq = NULL; /* These IO's already have an XRI and
|
|
* a mapped sgl.
|
|
*/
|
|
} else {
|
|
/* This is a continuation of a commandi,(CX) so this
|
|
* sglq is on the active list
|
|
*/
|
|
sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
|
|
if (!sglq)
|
|
return IOCB_ERROR;
|
|
}
|
|
|
|
if (sglq) {
|
|
xritag = lpfc_sli4_bpl2sgl(phba, piocb, sglq);
|
|
if (xritag != sglq->sli4_xritag)
|
|
return IOCB_ERROR;
|
|
}
|
|
|
|
if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
|
|
return IOCB_ERROR;
|
|
|
|
if ((piocb->iocb_flag & LPFC_IO_FCP) ||
|
|
(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
|
|
/*
|
|
* For FCP command IOCB, get a new WQ index to distribute
|
|
* WQE across the WQsr. On the other hand, for abort IOCB,
|
|
* it carries the same WQ index to the original command
|
|
* IOCB.
|
|
*/
|
|
if (piocb->iocb_flag & LPFC_IO_FCP)
|
|
piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
|
|
if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
|
|
&wqe))
|
|
return IOCB_ERROR;
|
|
} else {
|
|
if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
|
|
return IOCB_ERROR;
|
|
}
|
|
lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
|
|
*
|
|
* This routine wraps the actual lockless version for issusing IOCB function
|
|
* pointer from the lpfc_hba struct.
|
|
*
|
|
* Return codes:
|
|
* IOCB_ERROR - Error
|
|
* IOCB_SUCCESS - Success
|
|
* IOCB_BUSY - Busy
|
|
**/
|
|
static inline int
|
|
__lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
|
|
struct lpfc_iocbq *piocb, uint32_t flag)
|
|
{
|
|
return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_api_table_setup - Set up sli api fucntion jump table
|
|
* @phba: The hba struct for which this call is being executed.
|
|
* @dev_grp: The HBA PCI-Device group number.
|
|
*
|
|
* This routine sets up the SLI interface API function jump table in @phba
|
|
* struct.
|
|
* Returns: 0 - success, -ENODEV - failure.
|
|
**/
|
|
int
|
|
lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
|
|
{
|
|
|
|
switch (dev_grp) {
|
|
case LPFC_PCI_DEV_LP:
|
|
phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
|
|
phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
|
|
break;
|
|
case LPFC_PCI_DEV_OC:
|
|
phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
|
|
phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
|
|
break;
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"1419 Invalid HBA PCI-device group: 0x%x\n",
|
|
dev_grp);
|
|
return -ENODEV;
|
|
break;
|
|
}
|
|
phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @piocb: Pointer to command iocb.
|
|
* @flag: Flag indicating if this command can be put into txq.
|
|
*
|
|
* lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
|
|
* function. This function gets the hbalock and calls
|
|
* __lpfc_sli_issue_iocb function and will return the error returned
|
|
* by __lpfc_sli_issue_iocb function. This wrapper is used by
|
|
* functions which do not hold hbalock.
|
|
**/
|
|
int
|
|
lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
|
|
struct lpfc_iocbq *piocb, uint32_t flag)
|
|
{
|
|
unsigned long iflags;
|
|
int rc;
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_extra_ring_setup - Extra ring setup function
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called while driver attaches with the
|
|
* HBA to setup the extra ring. The extra ring is used
|
|
* only when driver needs to support target mode functionality
|
|
* or IP over FC functionalities.
|
|
*
|
|
* This function is called with no lock held.
|
|
**/
|
|
static int
|
|
lpfc_extra_ring_setup( struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli *psli;
|
|
struct lpfc_sli_ring *pring;
|
|
|
|
psli = &phba->sli;
|
|
|
|
/* Adjust cmd/rsp ring iocb entries more evenly */
|
|
|
|
/* Take some away from the FCP ring */
|
|
pring = &psli->ring[psli->fcp_ring];
|
|
pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
|
|
pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
|
|
pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
|
|
pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
|
|
|
|
/* and give them to the extra ring */
|
|
pring = &psli->ring[psli->extra_ring];
|
|
|
|
pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
|
|
pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
|
|
pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
|
|
pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
|
|
|
|
/* Setup default profile for this ring */
|
|
pring->iotag_max = 4096;
|
|
pring->num_mask = 1;
|
|
pring->prt[0].profile = 0; /* Mask 0 */
|
|
pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
|
|
pring->prt[0].type = phba->cfg_multi_ring_type;
|
|
pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_async_event_handler - ASYNC iocb handler function
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @iocbq: Pointer to iocb object.
|
|
*
|
|
* This function is called by the slow ring event handler
|
|
* function when there is an ASYNC event iocb in the ring.
|
|
* This function is called with no lock held.
|
|
* Currently this function handles only temperature related
|
|
* ASYNC events. The function decodes the temperature sensor
|
|
* event message and posts events for the management applications.
|
|
**/
|
|
static void
|
|
lpfc_sli_async_event_handler(struct lpfc_hba * phba,
|
|
struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
|
|
{
|
|
IOCB_t *icmd;
|
|
uint16_t evt_code;
|
|
uint16_t temp;
|
|
struct temp_event temp_event_data;
|
|
struct Scsi_Host *shost;
|
|
uint32_t *iocb_w;
|
|
|
|
icmd = &iocbq->iocb;
|
|
evt_code = icmd->un.asyncstat.evt_code;
|
|
temp = icmd->ulpContext;
|
|
|
|
if ((evt_code != ASYNC_TEMP_WARN) &&
|
|
(evt_code != ASYNC_TEMP_SAFE)) {
|
|
iocb_w = (uint32_t *) icmd;
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_SLI,
|
|
"0346 Ring %d handler: unexpected ASYNC_STATUS"
|
|
" evt_code 0x%x\n"
|
|
"W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
|
|
"W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
|
|
"W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
|
|
"W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
|
|
pring->ringno,
|
|
icmd->un.asyncstat.evt_code,
|
|
iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
|
|
iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
|
|
iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
|
|
iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
|
|
|
|
return;
|
|
}
|
|
temp_event_data.data = (uint32_t)temp;
|
|
temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
|
|
if (evt_code == ASYNC_TEMP_WARN) {
|
|
temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_TEMP,
|
|
"0347 Adapter is very hot, please take "
|
|
"corrective action. temperature : %d Celsius\n",
|
|
temp);
|
|
}
|
|
if (evt_code == ASYNC_TEMP_SAFE) {
|
|
temp_event_data.event_code = LPFC_NORMAL_TEMP;
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_TEMP,
|
|
"0340 Adapter temperature is OK now. "
|
|
"temperature : %d Celsius\n",
|
|
temp);
|
|
}
|
|
|
|
/* Send temperature change event to applications */
|
|
shost = lpfc_shost_from_vport(phba->pport);
|
|
fc_host_post_vendor_event(shost, fc_get_event_number(),
|
|
sizeof(temp_event_data), (char *) &temp_event_data,
|
|
LPFC_NL_VENDOR_ID);
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
* lpfc_sli_setup - SLI ring setup function
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* lpfc_sli_setup sets up rings of the SLI interface with
|
|
* number of iocbs per ring and iotags. This function is
|
|
* called while driver attach to the HBA and before the
|
|
* interrupts are enabled. So there is no need for locking.
|
|
*
|
|
* This function always returns 0.
|
|
**/
|
|
int
|
|
lpfc_sli_setup(struct lpfc_hba *phba)
|
|
{
|
|
int i, totiocbsize = 0;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_sli_ring *pring;
|
|
|
|
psli->num_rings = MAX_CONFIGURED_RINGS;
|
|
psli->sli_flag = 0;
|
|
psli->fcp_ring = LPFC_FCP_RING;
|
|
psli->next_ring = LPFC_FCP_NEXT_RING;
|
|
psli->extra_ring = LPFC_EXTRA_RING;
|
|
|
|
psli->iocbq_lookup = NULL;
|
|
psli->iocbq_lookup_len = 0;
|
|
psli->last_iotag = 0;
|
|
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
pring = &psli->ring[i];
|
|
switch (i) {
|
|
case LPFC_FCP_RING: /* ring 0 - FCP */
|
|
/* numCiocb and numRiocb are used in config_port */
|
|
pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
|
|
pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
|
|
pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
|
|
pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
|
|
pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
|
|
pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
|
|
pring->sizeCiocb = (phba->sli_rev == 3) ?
|
|
SLI3_IOCB_CMD_SIZE :
|
|
SLI2_IOCB_CMD_SIZE;
|
|
pring->sizeRiocb = (phba->sli_rev == 3) ?
|
|
SLI3_IOCB_RSP_SIZE :
|
|
SLI2_IOCB_RSP_SIZE;
|
|
pring->iotag_ctr = 0;
|
|
pring->iotag_max =
|
|
(phba->cfg_hba_queue_depth * 2);
|
|
pring->fast_iotag = pring->iotag_max;
|
|
pring->num_mask = 0;
|
|
break;
|
|
case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
|
|
/* numCiocb and numRiocb are used in config_port */
|
|
pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
|
|
pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
|
|
pring->sizeCiocb = (phba->sli_rev == 3) ?
|
|
SLI3_IOCB_CMD_SIZE :
|
|
SLI2_IOCB_CMD_SIZE;
|
|
pring->sizeRiocb = (phba->sli_rev == 3) ?
|
|
SLI3_IOCB_RSP_SIZE :
|
|
SLI2_IOCB_RSP_SIZE;
|
|
pring->iotag_max = phba->cfg_hba_queue_depth;
|
|
pring->num_mask = 0;
|
|
break;
|
|
case LPFC_ELS_RING: /* ring 2 - ELS / CT */
|
|
/* numCiocb and numRiocb are used in config_port */
|
|
pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
|
|
pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
|
|
pring->sizeCiocb = (phba->sli_rev == 3) ?
|
|
SLI3_IOCB_CMD_SIZE :
|
|
SLI2_IOCB_CMD_SIZE;
|
|
pring->sizeRiocb = (phba->sli_rev == 3) ?
|
|
SLI3_IOCB_RSP_SIZE :
|
|
SLI2_IOCB_RSP_SIZE;
|
|
pring->fast_iotag = 0;
|
|
pring->iotag_ctr = 0;
|
|
pring->iotag_max = 4096;
|
|
pring->lpfc_sli_rcv_async_status =
|
|
lpfc_sli_async_event_handler;
|
|
pring->num_mask = LPFC_MAX_RING_MASK;
|
|
pring->prt[0].profile = 0; /* Mask 0 */
|
|
pring->prt[0].rctl = FC_RCTL_ELS_REQ;
|
|
pring->prt[0].type = FC_TYPE_ELS;
|
|
pring->prt[0].lpfc_sli_rcv_unsol_event =
|
|
lpfc_els_unsol_event;
|
|
pring->prt[1].profile = 0; /* Mask 1 */
|
|
pring->prt[1].rctl = FC_RCTL_ELS_REP;
|
|
pring->prt[1].type = FC_TYPE_ELS;
|
|
pring->prt[1].lpfc_sli_rcv_unsol_event =
|
|
lpfc_els_unsol_event;
|
|
pring->prt[2].profile = 0; /* Mask 2 */
|
|
/* NameServer Inquiry */
|
|
pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
|
|
/* NameServer */
|
|
pring->prt[2].type = FC_TYPE_CT;
|
|
pring->prt[2].lpfc_sli_rcv_unsol_event =
|
|
lpfc_ct_unsol_event;
|
|
pring->prt[3].profile = 0; /* Mask 3 */
|
|
/* NameServer response */
|
|
pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
|
|
/* NameServer */
|
|
pring->prt[3].type = FC_TYPE_CT;
|
|
pring->prt[3].lpfc_sli_rcv_unsol_event =
|
|
lpfc_ct_unsol_event;
|
|
/* abort unsolicited sequence */
|
|
pring->prt[4].profile = 0; /* Mask 4 */
|
|
pring->prt[4].rctl = FC_RCTL_BA_ABTS;
|
|
pring->prt[4].type = FC_TYPE_BLS;
|
|
pring->prt[4].lpfc_sli_rcv_unsol_event =
|
|
lpfc_sli4_ct_abort_unsol_event;
|
|
break;
|
|
}
|
|
totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
|
|
(pring->numRiocb * pring->sizeRiocb);
|
|
}
|
|
if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
|
|
/* Too many cmd / rsp ring entries in SLI2 SLIM */
|
|
printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
|
|
"SLI2 SLIM Data: x%x x%lx\n",
|
|
phba->brd_no, totiocbsize,
|
|
(unsigned long) MAX_SLIM_IOCB_SIZE);
|
|
}
|
|
if (phba->cfg_multi_ring_support == 2)
|
|
lpfc_extra_ring_setup(phba);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_queue_setup - Queue initialization function
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
|
|
* ring. This function also initializes ring indices of each ring.
|
|
* This function is called during the initialization of the SLI
|
|
* interface of an HBA.
|
|
* This function is called with no lock held and always returns
|
|
* 1.
|
|
**/
|
|
int
|
|
lpfc_sli_queue_setup(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli *psli;
|
|
struct lpfc_sli_ring *pring;
|
|
int i;
|
|
|
|
psli = &phba->sli;
|
|
spin_lock_irq(&phba->hbalock);
|
|
INIT_LIST_HEAD(&psli->mboxq);
|
|
INIT_LIST_HEAD(&psli->mboxq_cmpl);
|
|
/* Initialize list headers for txq and txcmplq as double linked lists */
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
pring = &psli->ring[i];
|
|
pring->ringno = i;
|
|
pring->next_cmdidx = 0;
|
|
pring->local_getidx = 0;
|
|
pring->cmdidx = 0;
|
|
INIT_LIST_HEAD(&pring->txq);
|
|
INIT_LIST_HEAD(&pring->txcmplq);
|
|
INIT_LIST_HEAD(&pring->iocb_continueq);
|
|
INIT_LIST_HEAD(&pring->iocb_continue_saveq);
|
|
INIT_LIST_HEAD(&pring->postbufq);
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This routine flushes the mailbox command subsystem. It will unconditionally
|
|
* flush all the mailbox commands in the three possible stages in the mailbox
|
|
* command sub-system: pending mailbox command queue; the outstanding mailbox
|
|
* command; and completed mailbox command queue. It is caller's responsibility
|
|
* to make sure that the driver is in the proper state to flush the mailbox
|
|
* command sub-system. Namely, the posting of mailbox commands into the
|
|
* pending mailbox command queue from the various clients must be stopped;
|
|
* either the HBA is in a state that it will never works on the outstanding
|
|
* mailbox command (such as in EEH or ERATT conditions) or the outstanding
|
|
* mailbox command has been completed.
|
|
**/
|
|
static void
|
|
lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
|
|
{
|
|
LIST_HEAD(completions);
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
LPFC_MBOXQ_t *pmb;
|
|
unsigned long iflag;
|
|
|
|
/* Flush all the mailbox commands in the mbox system */
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
/* The pending mailbox command queue */
|
|
list_splice_init(&phba->sli.mboxq, &completions);
|
|
/* The outstanding active mailbox command */
|
|
if (psli->mbox_active) {
|
|
list_add_tail(&psli->mbox_active->list, &completions);
|
|
psli->mbox_active = NULL;
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
}
|
|
/* The completed mailbox command queue */
|
|
list_splice_init(&phba->sli.mboxq_cmpl, &completions);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
|
|
/* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
|
|
while (!list_empty(&completions)) {
|
|
list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
|
|
pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
|
|
if (pmb->mbox_cmpl)
|
|
pmb->mbox_cmpl(phba, pmb);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_host_down - Vport cleanup function
|
|
* @vport: Pointer to virtual port object.
|
|
*
|
|
* lpfc_sli_host_down is called to clean up the resources
|
|
* associated with a vport before destroying virtual
|
|
* port data structures.
|
|
* This function does following operations:
|
|
* - Free discovery resources associated with this virtual
|
|
* port.
|
|
* - Free iocbs associated with this virtual port in
|
|
* the txq.
|
|
* - Send abort for all iocb commands associated with this
|
|
* vport in txcmplq.
|
|
*
|
|
* This function is called with no lock held and always returns 1.
|
|
**/
|
|
int
|
|
lpfc_sli_host_down(struct lpfc_vport *vport)
|
|
{
|
|
LIST_HEAD(completions);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_sli_ring *pring;
|
|
struct lpfc_iocbq *iocb, *next_iocb;
|
|
int i;
|
|
unsigned long flags = 0;
|
|
uint16_t prev_pring_flag;
|
|
|
|
lpfc_cleanup_discovery_resources(vport);
|
|
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
pring = &psli->ring[i];
|
|
prev_pring_flag = pring->flag;
|
|
/* Only slow rings */
|
|
if (pring->ringno == LPFC_ELS_RING) {
|
|
pring->flag |= LPFC_DEFERRED_RING_EVENT;
|
|
/* Set the lpfc data pending flag */
|
|
set_bit(LPFC_DATA_READY, &phba->data_flags);
|
|
}
|
|
/*
|
|
* Error everything on the txq since these iocbs have not been
|
|
* given to the FW yet.
|
|
*/
|
|
list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
|
|
if (iocb->vport != vport)
|
|
continue;
|
|
list_move_tail(&iocb->list, &completions);
|
|
pring->txq_cnt--;
|
|
}
|
|
|
|
/* Next issue ABTS for everything on the txcmplq */
|
|
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
|
|
list) {
|
|
if (iocb->vport != vport)
|
|
continue;
|
|
lpfc_sli_issue_abort_iotag(phba, pring, iocb);
|
|
}
|
|
|
|
pring->flag = prev_pring_flag;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
|
|
/* Cancel all the IOCBs from the completions list */
|
|
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
|
|
IOERR_SLI_DOWN);
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_hba_down - Resource cleanup function for the HBA
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function cleans up all iocb, buffers, mailbox commands
|
|
* while shutting down the HBA. This function is called with no
|
|
* lock held and always returns 1.
|
|
* This function does the following to cleanup driver resources:
|
|
* - Free discovery resources for each virtual port
|
|
* - Cleanup any pending fabric iocbs
|
|
* - Iterate through the iocb txq and free each entry
|
|
* in the list.
|
|
* - Free up any buffer posted to the HBA
|
|
* - Free mailbox commands in the mailbox queue.
|
|
**/
|
|
int
|
|
lpfc_sli_hba_down(struct lpfc_hba *phba)
|
|
{
|
|
LIST_HEAD(completions);
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_sli_ring *pring;
|
|
struct lpfc_dmabuf *buf_ptr;
|
|
unsigned long flags = 0;
|
|
int i;
|
|
|
|
/* Shutdown the mailbox command sub-system */
|
|
lpfc_sli_mbox_sys_shutdown(phba);
|
|
|
|
lpfc_hba_down_prep(phba);
|
|
|
|
lpfc_fabric_abort_hba(phba);
|
|
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
pring = &psli->ring[i];
|
|
/* Only slow rings */
|
|
if (pring->ringno == LPFC_ELS_RING) {
|
|
pring->flag |= LPFC_DEFERRED_RING_EVENT;
|
|
/* Set the lpfc data pending flag */
|
|
set_bit(LPFC_DATA_READY, &phba->data_flags);
|
|
}
|
|
|
|
/*
|
|
* Error everything on the txq since these iocbs have not been
|
|
* given to the FW yet.
|
|
*/
|
|
list_splice_init(&pring->txq, &completions);
|
|
pring->txq_cnt = 0;
|
|
|
|
}
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
|
|
/* Cancel all the IOCBs from the completions list */
|
|
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
|
|
IOERR_SLI_DOWN);
|
|
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
list_splice_init(&phba->elsbuf, &completions);
|
|
phba->elsbuf_cnt = 0;
|
|
phba->elsbuf_prev_cnt = 0;
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
|
|
while (!list_empty(&completions)) {
|
|
list_remove_head(&completions, buf_ptr,
|
|
struct lpfc_dmabuf, list);
|
|
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
|
|
kfree(buf_ptr);
|
|
}
|
|
|
|
/* Return any active mbox cmds */
|
|
del_timer_sync(&psli->mbox_tmo);
|
|
|
|
spin_lock_irqsave(&phba->pport->work_port_lock, flags);
|
|
phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
|
|
spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function cleans up all queues, iocb, buffers, mailbox commands while
|
|
* shutting down the SLI4 HBA FCoE function. This function is called with no
|
|
* lock held and always returns 1.
|
|
*
|
|
* This function does the following to cleanup driver FCoE function resources:
|
|
* - Free discovery resources for each virtual port
|
|
* - Cleanup any pending fabric iocbs
|
|
* - Iterate through the iocb txq and free each entry in the list.
|
|
* - Free up any buffer posted to the HBA.
|
|
* - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc.
|
|
* - Free mailbox commands in the mailbox queue.
|
|
**/
|
|
int
|
|
lpfc_sli4_hba_down(struct lpfc_hba *phba)
|
|
{
|
|
/* Stop the SLI4 device port */
|
|
lpfc_stop_port(phba);
|
|
|
|
/* Tear down the queues in the HBA */
|
|
lpfc_sli4_queue_unset(phba);
|
|
|
|
/* unregister default FCFI from the HBA */
|
|
lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_pcimem_bcopy - SLI memory copy function
|
|
* @srcp: Source memory pointer.
|
|
* @destp: Destination memory pointer.
|
|
* @cnt: Number of words required to be copied.
|
|
*
|
|
* This function is used for copying data between driver memory
|
|
* and the SLI memory. This function also changes the endianness
|
|
* of each word if native endianness is different from SLI
|
|
* endianness. This function can be called with or without
|
|
* lock.
|
|
**/
|
|
void
|
|
lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
|
|
{
|
|
uint32_t *src = srcp;
|
|
uint32_t *dest = destp;
|
|
uint32_t ldata;
|
|
int i;
|
|
|
|
for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
|
|
ldata = *src;
|
|
ldata = le32_to_cpu(ldata);
|
|
*dest = ldata;
|
|
src++;
|
|
dest++;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* lpfc_sli_bemem_bcopy - SLI memory copy function
|
|
* @srcp: Source memory pointer.
|
|
* @destp: Destination memory pointer.
|
|
* @cnt: Number of words required to be copied.
|
|
*
|
|
* This function is used for copying data between a data structure
|
|
* with big endian representation to local endianness.
|
|
* This function can be called with or without lock.
|
|
**/
|
|
void
|
|
lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
|
|
{
|
|
uint32_t *src = srcp;
|
|
uint32_t *dest = destp;
|
|
uint32_t ldata;
|
|
int i;
|
|
|
|
for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
|
|
ldata = *src;
|
|
ldata = be32_to_cpu(ldata);
|
|
*dest = ldata;
|
|
src++;
|
|
dest++;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @mp: Pointer to driver buffer object.
|
|
*
|
|
* This function is called with no lock held.
|
|
* It always return zero after adding the buffer to the postbufq
|
|
* buffer list.
|
|
**/
|
|
int
|
|
lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_dmabuf *mp)
|
|
{
|
|
/* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
|
|
later */
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_add_tail(&mp->list, &pring->postbufq);
|
|
pring->postbufq_cnt++;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* When HBQ is enabled, buffers are searched based on tags. This function
|
|
* allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
|
|
* tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
|
|
* does not conflict with tags of buffer posted for unsolicited events.
|
|
* The function returns the allocated tag. The function is called with
|
|
* no locks held.
|
|
**/
|
|
uint32_t
|
|
lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
|
|
{
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->buffer_tag_count++;
|
|
/*
|
|
* Always set the QUE_BUFTAG_BIT to distiguish between
|
|
* a tag assigned by HBQ.
|
|
*/
|
|
phba->buffer_tag_count |= QUE_BUFTAG_BIT;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return phba->buffer_tag_count;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @tag: Buffer tag.
|
|
*
|
|
* Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
|
|
* list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
|
|
* iocb is posted to the response ring with the tag of the buffer.
|
|
* This function searches the pring->postbufq list using the tag
|
|
* to find buffer associated with CMD_IOCB_RET_XRI64_CX
|
|
* iocb. If the buffer is found then lpfc_dmabuf object of the
|
|
* buffer is returned to the caller else NULL is returned.
|
|
* This function is called with no lock held.
|
|
**/
|
|
struct lpfc_dmabuf *
|
|
lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
uint32_t tag)
|
|
{
|
|
struct lpfc_dmabuf *mp, *next_mp;
|
|
struct list_head *slp = &pring->postbufq;
|
|
|
|
/* Search postbufq, from the begining, looking for a match on tag */
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
|
|
if (mp->buffer_tag == tag) {
|
|
list_del_init(&mp->list);
|
|
pring->postbufq_cnt--;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return mp;
|
|
}
|
|
}
|
|
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0402 Cannot find virtual addr for buffer tag on "
|
|
"ring %d Data x%lx x%p x%p x%x\n",
|
|
pring->ringno, (unsigned long) tag,
|
|
slp->next, slp->prev, pring->postbufq_cnt);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @phys: DMA address of the buffer.
|
|
*
|
|
* This function searches the buffer list using the dma_address
|
|
* of unsolicited event to find the driver's lpfc_dmabuf object
|
|
* corresponding to the dma_address. The function returns the
|
|
* lpfc_dmabuf object if a buffer is found else it returns NULL.
|
|
* This function is called by the ct and els unsolicited event
|
|
* handlers to get the buffer associated with the unsolicited
|
|
* event.
|
|
*
|
|
* This function is called with no lock held.
|
|
**/
|
|
struct lpfc_dmabuf *
|
|
lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
dma_addr_t phys)
|
|
{
|
|
struct lpfc_dmabuf *mp, *next_mp;
|
|
struct list_head *slp = &pring->postbufq;
|
|
|
|
/* Search postbufq, from the begining, looking for a match on phys */
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
|
|
if (mp->phys == phys) {
|
|
list_del_init(&mp->list);
|
|
pring->postbufq_cnt--;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return mp;
|
|
}
|
|
}
|
|
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0410 Cannot find virtual addr for mapped buf on "
|
|
"ring %d Data x%llx x%p x%p x%x\n",
|
|
pring->ringno, (unsigned long long)phys,
|
|
slp->next, slp->prev, pring->postbufq_cnt);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
|
|
* @phba: Pointer to HBA context object.
|
|
* @cmdiocb: Pointer to driver command iocb object.
|
|
* @rspiocb: Pointer to driver response iocb object.
|
|
*
|
|
* This function is the completion handler for the abort iocbs for
|
|
* ELS commands. This function is called from the ELS ring event
|
|
* handler with no lock held. This function frees memory resources
|
|
* associated with the abort iocb.
|
|
**/
|
|
static void
|
|
lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
IOCB_t *irsp = &rspiocb->iocb;
|
|
uint16_t abort_iotag, abort_context;
|
|
struct lpfc_iocbq *abort_iocb;
|
|
struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
|
|
|
|
abort_iocb = NULL;
|
|
|
|
if (irsp->ulpStatus) {
|
|
abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
|
|
abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (phba->sli_rev < LPFC_SLI_REV4) {
|
|
if (abort_iotag != 0 &&
|
|
abort_iotag <= phba->sli.last_iotag)
|
|
abort_iocb =
|
|
phba->sli.iocbq_lookup[abort_iotag];
|
|
} else
|
|
/* For sli4 the abort_tag is the XRI,
|
|
* so the abort routine puts the iotag of the iocb
|
|
* being aborted in the context field of the abort
|
|
* IOCB.
|
|
*/
|
|
abort_iocb = phba->sli.iocbq_lookup[abort_context];
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI,
|
|
"0327 Cannot abort els iocb %p "
|
|
"with tag %x context %x, abort status %x, "
|
|
"abort code %x\n",
|
|
abort_iocb, abort_iotag, abort_context,
|
|
irsp->ulpStatus, irsp->un.ulpWord[4]);
|
|
|
|
/*
|
|
* If the iocb is not found in Firmware queue the iocb
|
|
* might have completed already. Do not free it again.
|
|
*/
|
|
if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
|
|
if (irsp->un.ulpWord[4] != IOERR_NO_XRI) {
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_sli_release_iocbq(phba, cmdiocb);
|
|
return;
|
|
}
|
|
/* For SLI4 the ulpContext field for abort IOCB
|
|
* holds the iotag of the IOCB being aborted so
|
|
* the local abort_context needs to be reset to
|
|
* match the aborted IOCBs ulpContext.
|
|
*/
|
|
if (abort_iocb && phba->sli_rev == LPFC_SLI_REV4)
|
|
abort_context = abort_iocb->iocb.ulpContext;
|
|
}
|
|
/*
|
|
* make sure we have the right iocbq before taking it
|
|
* off the txcmplq and try to call completion routine.
|
|
*/
|
|
if (!abort_iocb ||
|
|
abort_iocb->iocb.ulpContext != abort_context ||
|
|
(abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0)
|
|
spin_unlock_irq(&phba->hbalock);
|
|
else if (phba->sli_rev < LPFC_SLI_REV4) {
|
|
/*
|
|
* leave the SLI4 aborted command on the txcmplq
|
|
* list and the command complete WCQE's XB bit
|
|
* will tell whether the SGL (XRI) can be released
|
|
* immediately or to the aborted SGL list for the
|
|
* following abort XRI from the HBA.
|
|
*/
|
|
list_del_init(&abort_iocb->list);
|
|
pring->txcmplq_cnt--;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Firmware could still be in progress of DMAing
|
|
* payload, so don't free data buffer till after
|
|
* a hbeat.
|
|
*/
|
|
spin_lock_irq(&phba->hbalock);
|
|
abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE;
|
|
abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
|
|
abort_iocb->iocb.un.ulpWord[4] = IOERR_ABORT_REQUESTED;
|
|
(abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb);
|
|
}
|
|
}
|
|
|
|
lpfc_sli_release_iocbq(phba, cmdiocb);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
|
|
* @phba: Pointer to HBA context object.
|
|
* @cmdiocb: Pointer to driver command iocb object.
|
|
* @rspiocb: Pointer to driver response iocb object.
|
|
*
|
|
* The function is called from SLI ring event handler with no
|
|
* lock held. This function is the completion handler for ELS commands
|
|
* which are aborted. The function frees memory resources used for
|
|
* the aborted ELS commands.
|
|
**/
|
|
static void
|
|
lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
IOCB_t *irsp = &rspiocb->iocb;
|
|
|
|
/* ELS cmd tag <ulpIoTag> completes */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
|
|
"0139 Ignoring ELS cmd tag x%x completion Data: "
|
|
"x%x x%x x%x\n",
|
|
irsp->ulpIoTag, irsp->ulpStatus,
|
|
irsp->un.ulpWord[4], irsp->ulpTimeout);
|
|
if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
|
|
lpfc_ct_free_iocb(phba, cmdiocb);
|
|
else
|
|
lpfc_els_free_iocb(phba, cmdiocb);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_issue_abort_iotag - Abort function for a command iocb
|
|
* @phba: Pointer to HBA context object.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @cmdiocb: Pointer to driver command iocb object.
|
|
*
|
|
* This function issues an abort iocb for the provided command
|
|
* iocb. This function is called with hbalock held.
|
|
* The function returns 0 when it fails due to memory allocation
|
|
* failure or when the command iocb is an abort request.
|
|
**/
|
|
int
|
|
lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *cmdiocb)
|
|
{
|
|
struct lpfc_vport *vport = cmdiocb->vport;
|
|
struct lpfc_iocbq *abtsiocbp;
|
|
IOCB_t *icmd = NULL;
|
|
IOCB_t *iabt = NULL;
|
|
int retval = IOCB_ERROR;
|
|
|
|
/*
|
|
* There are certain command types we don't want to abort. And we
|
|
* don't want to abort commands that are already in the process of
|
|
* being aborted.
|
|
*/
|
|
icmd = &cmdiocb->iocb;
|
|
if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
|
|
icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
|
|
(cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
|
|
return 0;
|
|
|
|
/* If we're unloading, don't abort iocb on the ELS ring, but change the
|
|
* callback so that nothing happens when it finishes.
|
|
*/
|
|
if ((vport->load_flag & FC_UNLOADING) &&
|
|
(pring->ringno == LPFC_ELS_RING)) {
|
|
if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
|
|
cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
|
|
else
|
|
cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
|
|
goto abort_iotag_exit;
|
|
}
|
|
|
|
/* issue ABTS for this IOCB based on iotag */
|
|
abtsiocbp = __lpfc_sli_get_iocbq(phba);
|
|
if (abtsiocbp == NULL)
|
|
return 0;
|
|
|
|
/* This signals the response to set the correct status
|
|
* before calling the completion handler
|
|
*/
|
|
cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
|
|
|
|
iabt = &abtsiocbp->iocb;
|
|
iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
|
|
iabt->un.acxri.abortContextTag = icmd->ulpContext;
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
|
|
iabt->un.acxri.abortContextTag = cmdiocb->iotag;
|
|
}
|
|
else
|
|
iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
|
|
iabt->ulpLe = 1;
|
|
iabt->ulpClass = icmd->ulpClass;
|
|
|
|
/* ABTS WQE must go to the same WQ as the WQE to be aborted */
|
|
abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
|
|
if (cmdiocb->iocb_flag & LPFC_IO_FCP)
|
|
abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
|
|
|
|
if (phba->link_state >= LPFC_LINK_UP)
|
|
iabt->ulpCommand = CMD_ABORT_XRI_CN;
|
|
else
|
|
iabt->ulpCommand = CMD_CLOSE_XRI_CN;
|
|
|
|
abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
|
|
|
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
|
|
"0339 Abort xri x%x, original iotag x%x, "
|
|
"abort cmd iotag x%x\n",
|
|
iabt->un.acxri.abortContextTag,
|
|
iabt->un.acxri.abortIoTag, abtsiocbp->iotag);
|
|
retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
|
|
|
|
if (retval)
|
|
__lpfc_sli_release_iocbq(phba, abtsiocbp);
|
|
abort_iotag_exit:
|
|
/*
|
|
* Caller to this routine should check for IOCB_ERROR
|
|
* and handle it properly. This routine no longer removes
|
|
* iocb off txcmplq and call compl in case of IOCB_ERROR.
|
|
*/
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
|
|
* @iocbq: Pointer to driver iocb object.
|
|
* @vport: Pointer to driver virtual port object.
|
|
* @tgt_id: SCSI ID of the target.
|
|
* @lun_id: LUN ID of the scsi device.
|
|
* @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
|
|
*
|
|
* This function acts as an iocb filter for functions which abort or count
|
|
* all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
|
|
* 0 if the filtering criteria is met for the given iocb and will return
|
|
* 1 if the filtering criteria is not met.
|
|
* If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
|
|
* given iocb is for the SCSI device specified by vport, tgt_id and
|
|
* lun_id parameter.
|
|
* If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
|
|
* given iocb is for the SCSI target specified by vport and tgt_id
|
|
* parameters.
|
|
* If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
|
|
* given iocb is for the SCSI host associated with the given vport.
|
|
* This function is called with no locks held.
|
|
**/
|
|
static int
|
|
lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
|
|
uint16_t tgt_id, uint64_t lun_id,
|
|
lpfc_ctx_cmd ctx_cmd)
|
|
{
|
|
struct lpfc_scsi_buf *lpfc_cmd;
|
|
int rc = 1;
|
|
|
|
if (!(iocbq->iocb_flag & LPFC_IO_FCP))
|
|
return rc;
|
|
|
|
if (iocbq->vport != vport)
|
|
return rc;
|
|
|
|
lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
|
|
|
|
if (lpfc_cmd->pCmd == NULL)
|
|
return rc;
|
|
|
|
switch (ctx_cmd) {
|
|
case LPFC_CTX_LUN:
|
|
if ((lpfc_cmd->rdata->pnode) &&
|
|
(lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
|
|
(scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
|
|
rc = 0;
|
|
break;
|
|
case LPFC_CTX_TGT:
|
|
if ((lpfc_cmd->rdata->pnode) &&
|
|
(lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
|
|
rc = 0;
|
|
break;
|
|
case LPFC_CTX_HOST:
|
|
rc = 0;
|
|
break;
|
|
default:
|
|
printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
|
|
__func__, ctx_cmd);
|
|
break;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
|
|
* @vport: Pointer to virtual port.
|
|
* @tgt_id: SCSI ID of the target.
|
|
* @lun_id: LUN ID of the scsi device.
|
|
* @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
|
|
*
|
|
* This function returns number of FCP commands pending for the vport.
|
|
* When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
|
|
* commands pending on the vport associated with SCSI device specified
|
|
* by tgt_id and lun_id parameters.
|
|
* When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
|
|
* commands pending on the vport associated with SCSI target specified
|
|
* by tgt_id parameter.
|
|
* When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
|
|
* commands pending on the vport.
|
|
* This function returns the number of iocbs which satisfy the filter.
|
|
* This function is called without any lock held.
|
|
**/
|
|
int
|
|
lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
|
|
lpfc_ctx_cmd ctx_cmd)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_iocbq *iocbq;
|
|
int sum, i;
|
|
|
|
for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
|
|
iocbq = phba->sli.iocbq_lookup[i];
|
|
|
|
if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
|
|
ctx_cmd) == 0)
|
|
sum++;
|
|
}
|
|
|
|
return sum;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
|
|
* @phba: Pointer to HBA context object
|
|
* @cmdiocb: Pointer to command iocb object.
|
|
* @rspiocb: Pointer to response iocb object.
|
|
*
|
|
* This function is called when an aborted FCP iocb completes. This
|
|
* function is called by the ring event handler with no lock held.
|
|
* This function frees the iocb.
|
|
**/
|
|
void
|
|
lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
|
|
struct lpfc_iocbq *rspiocb)
|
|
{
|
|
lpfc_sli_release_iocbq(phba, cmdiocb);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
|
|
* @vport: Pointer to virtual port.
|
|
* @pring: Pointer to driver SLI ring object.
|
|
* @tgt_id: SCSI ID of the target.
|
|
* @lun_id: LUN ID of the scsi device.
|
|
* @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
|
|
*
|
|
* This function sends an abort command for every SCSI command
|
|
* associated with the given virtual port pending on the ring
|
|
* filtered by lpfc_sli_validate_fcp_iocb function.
|
|
* When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
|
|
* FCP iocbs associated with lun specified by tgt_id and lun_id
|
|
* parameters
|
|
* When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
|
|
* FCP iocbs associated with SCSI target specified by tgt_id parameter.
|
|
* When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
|
|
* FCP iocbs associated with virtual port.
|
|
* This function returns number of iocbs it failed to abort.
|
|
* This function is called with no locks held.
|
|
**/
|
|
int
|
|
lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
|
|
uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_iocbq *iocbq;
|
|
struct lpfc_iocbq *abtsiocb;
|
|
IOCB_t *cmd = NULL;
|
|
int errcnt = 0, ret_val = 0;
|
|
int i;
|
|
|
|
for (i = 1; i <= phba->sli.last_iotag; i++) {
|
|
iocbq = phba->sli.iocbq_lookup[i];
|
|
|
|
if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
|
|
abort_cmd) != 0)
|
|
continue;
|
|
|
|
/* issue ABTS for this IOCB based on iotag */
|
|
abtsiocb = lpfc_sli_get_iocbq(phba);
|
|
if (abtsiocb == NULL) {
|
|
errcnt++;
|
|
continue;
|
|
}
|
|
|
|
cmd = &iocbq->iocb;
|
|
abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
|
|
abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
|
|
if (phba->sli_rev == LPFC_SLI_REV4)
|
|
abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
|
|
else
|
|
abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
|
|
abtsiocb->iocb.ulpLe = 1;
|
|
abtsiocb->iocb.ulpClass = cmd->ulpClass;
|
|
abtsiocb->vport = phba->pport;
|
|
|
|
/* ABTS WQE must go to the same WQ as the WQE to be aborted */
|
|
abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
|
|
if (iocbq->iocb_flag & LPFC_IO_FCP)
|
|
abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
|
|
|
|
if (lpfc_is_link_up(phba))
|
|
abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
|
|
else
|
|
abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
|
|
|
|
/* Setup callback routine and issue the command. */
|
|
abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
|
|
ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
|
|
abtsiocb, 0);
|
|
if (ret_val == IOCB_ERROR) {
|
|
lpfc_sli_release_iocbq(phba, abtsiocb);
|
|
errcnt++;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
return errcnt;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
|
|
* @phba: Pointer to HBA context object.
|
|
* @cmdiocbq: Pointer to command iocb.
|
|
* @rspiocbq: Pointer to response iocb.
|
|
*
|
|
* This function is the completion handler for iocbs issued using
|
|
* lpfc_sli_issue_iocb_wait function. This function is called by the
|
|
* ring event handler function without any lock held. This function
|
|
* can be called from both worker thread context and interrupt
|
|
* context. This function also can be called from other thread which
|
|
* cleans up the SLI layer objects.
|
|
* This function copy the contents of the response iocb to the
|
|
* response iocb memory object provided by the caller of
|
|
* lpfc_sli_issue_iocb_wait and then wakes up the thread which
|
|
* sleeps for the iocb completion.
|
|
**/
|
|
static void
|
|
lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
|
|
struct lpfc_iocbq *cmdiocbq,
|
|
struct lpfc_iocbq *rspiocbq)
|
|
{
|
|
wait_queue_head_t *pdone_q;
|
|
unsigned long iflags;
|
|
struct lpfc_scsi_buf *lpfc_cmd;
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
|
|
if (cmdiocbq->context2 && rspiocbq)
|
|
memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
|
|
&rspiocbq->iocb, sizeof(IOCB_t));
|
|
|
|
/* Set the exchange busy flag for task management commands */
|
|
if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
|
|
!(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
|
|
lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
|
|
cur_iocbq);
|
|
lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
|
|
}
|
|
|
|
pdone_q = cmdiocbq->context_un.wait_queue;
|
|
if (pdone_q)
|
|
wake_up(pdone_q);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_chk_iocb_flg - Test IOCB flag with lock held.
|
|
* @phba: Pointer to HBA context object..
|
|
* @piocbq: Pointer to command iocb.
|
|
* @flag: Flag to test.
|
|
*
|
|
* This routine grabs the hbalock and then test the iocb_flag to
|
|
* see if the passed in flag is set.
|
|
* Returns:
|
|
* 1 if flag is set.
|
|
* 0 if flag is not set.
|
|
**/
|
|
static int
|
|
lpfc_chk_iocb_flg(struct lpfc_hba *phba,
|
|
struct lpfc_iocbq *piocbq, uint32_t flag)
|
|
{
|
|
unsigned long iflags;
|
|
int ret;
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
ret = piocbq->iocb_flag & flag;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
return ret;
|
|
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
|
|
* @phba: Pointer to HBA context object..
|
|
* @pring: Pointer to sli ring.
|
|
* @piocb: Pointer to command iocb.
|
|
* @prspiocbq: Pointer to response iocb.
|
|
* @timeout: Timeout in number of seconds.
|
|
*
|
|
* This function issues the iocb to firmware and waits for the
|
|
* iocb to complete. If the iocb command is not
|
|
* completed within timeout seconds, it returns IOCB_TIMEDOUT.
|
|
* Caller should not free the iocb resources if this function
|
|
* returns IOCB_TIMEDOUT.
|
|
* The function waits for the iocb completion using an
|
|
* non-interruptible wait.
|
|
* This function will sleep while waiting for iocb completion.
|
|
* So, this function should not be called from any context which
|
|
* does not allow sleeping. Due to the same reason, this function
|
|
* cannot be called with interrupt disabled.
|
|
* This function assumes that the iocb completions occur while
|
|
* this function sleep. So, this function cannot be called from
|
|
* the thread which process iocb completion for this ring.
|
|
* This function clears the iocb_flag of the iocb object before
|
|
* issuing the iocb and the iocb completion handler sets this
|
|
* flag and wakes this thread when the iocb completes.
|
|
* The contents of the response iocb will be copied to prspiocbq
|
|
* by the completion handler when the command completes.
|
|
* This function returns IOCB_SUCCESS when success.
|
|
* This function is called with no lock held.
|
|
**/
|
|
int
|
|
lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
|
|
uint32_t ring_number,
|
|
struct lpfc_iocbq *piocb,
|
|
struct lpfc_iocbq *prspiocbq,
|
|
uint32_t timeout)
|
|
{
|
|
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
|
|
long timeleft, timeout_req = 0;
|
|
int retval = IOCB_SUCCESS;
|
|
uint32_t creg_val;
|
|
|
|
/*
|
|
* If the caller has provided a response iocbq buffer, then context2
|
|
* is NULL or its an error.
|
|
*/
|
|
if (prspiocbq) {
|
|
if (piocb->context2)
|
|
return IOCB_ERROR;
|
|
piocb->context2 = prspiocbq;
|
|
}
|
|
|
|
piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
|
|
piocb->context_un.wait_queue = &done_q;
|
|
piocb->iocb_flag &= ~LPFC_IO_WAKE;
|
|
|
|
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
|
|
creg_val = readl(phba->HCregaddr);
|
|
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
|
|
writel(creg_val, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
}
|
|
|
|
retval = lpfc_sli_issue_iocb(phba, ring_number, piocb, 0);
|
|
if (retval == IOCB_SUCCESS) {
|
|
timeout_req = timeout * HZ;
|
|
timeleft = wait_event_timeout(done_q,
|
|
lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
|
|
timeout_req);
|
|
|
|
if (piocb->iocb_flag & LPFC_IO_WAKE) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"0331 IOCB wake signaled\n");
|
|
} else if (timeleft == 0) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0338 IOCB wait timeout error - no "
|
|
"wake response Data x%x\n", timeout);
|
|
retval = IOCB_TIMEDOUT;
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0330 IOCB wake NOT set, "
|
|
"Data x%x x%lx\n",
|
|
timeout, (timeleft / jiffies));
|
|
retval = IOCB_TIMEDOUT;
|
|
}
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"0332 IOCB wait issue failed, Data x%x\n",
|
|
retval);
|
|
retval = IOCB_ERROR;
|
|
}
|
|
|
|
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
|
|
creg_val = readl(phba->HCregaddr);
|
|
creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
|
|
writel(creg_val, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
}
|
|
|
|
if (prspiocbq)
|
|
piocb->context2 = NULL;
|
|
|
|
piocb->context_un.wait_queue = NULL;
|
|
piocb->iocb_cmpl = NULL;
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
|
|
* @phba: Pointer to HBA context object.
|
|
* @pmboxq: Pointer to driver mailbox object.
|
|
* @timeout: Timeout in number of seconds.
|
|
*
|
|
* This function issues the mailbox to firmware and waits for the
|
|
* mailbox command to complete. If the mailbox command is not
|
|
* completed within timeout seconds, it returns MBX_TIMEOUT.
|
|
* The function waits for the mailbox completion using an
|
|
* interruptible wait. If the thread is woken up due to a
|
|
* signal, MBX_TIMEOUT error is returned to the caller. Caller
|
|
* should not free the mailbox resources, if this function returns
|
|
* MBX_TIMEOUT.
|
|
* This function will sleep while waiting for mailbox completion.
|
|
* So, this function should not be called from any context which
|
|
* does not allow sleeping. Due to the same reason, this function
|
|
* cannot be called with interrupt disabled.
|
|
* This function assumes that the mailbox completion occurs while
|
|
* this function sleep. So, this function cannot be called from
|
|
* the worker thread which processes mailbox completion.
|
|
* This function is called in the context of HBA management
|
|
* applications.
|
|
* This function returns MBX_SUCCESS when successful.
|
|
* This function is called with no lock held.
|
|
**/
|
|
int
|
|
lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
|
|
uint32_t timeout)
|
|
{
|
|
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
|
|
int retval;
|
|
unsigned long flag;
|
|
|
|
/* The caller must leave context1 empty. */
|
|
if (pmboxq->context1)
|
|
return MBX_NOT_FINISHED;
|
|
|
|
pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
|
|
/* setup wake call as IOCB callback */
|
|
pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
|
|
/* setup context field to pass wait_queue pointer to wake function */
|
|
pmboxq->context1 = &done_q;
|
|
|
|
/* now issue the command */
|
|
retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
|
|
|
|
if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
|
|
wait_event_interruptible_timeout(done_q,
|
|
pmboxq->mbox_flag & LPFC_MBX_WAKE,
|
|
timeout * HZ);
|
|
|
|
spin_lock_irqsave(&phba->hbalock, flag);
|
|
pmboxq->context1 = NULL;
|
|
/*
|
|
* if LPFC_MBX_WAKE flag is set the mailbox is completed
|
|
* else do not free the resources.
|
|
*/
|
|
if (pmboxq->mbox_flag & LPFC_MBX_WAKE)
|
|
retval = MBX_SUCCESS;
|
|
else {
|
|
retval = MBX_TIMEOUT;
|
|
pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
}
|
|
spin_unlock_irqrestore(&phba->hbalock, flag);
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
|
|
* @phba: Pointer to HBA context.
|
|
*
|
|
* This function is called to shutdown the driver's mailbox sub-system.
|
|
* It first marks the mailbox sub-system is in a block state to prevent
|
|
* the asynchronous mailbox command from issued off the pending mailbox
|
|
* command queue. If the mailbox command sub-system shutdown is due to
|
|
* HBA error conditions such as EEH or ERATT, this routine shall invoke
|
|
* the mailbox sub-system flush routine to forcefully bring down the
|
|
* mailbox sub-system. Otherwise, if it is due to normal condition (such
|
|
* as with offline or HBA function reset), this routine will wait for the
|
|
* outstanding mailbox command to complete before invoking the mailbox
|
|
* sub-system flush routine to gracefully bring down mailbox sub-system.
|
|
**/
|
|
void
|
|
lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
uint8_t actcmd = MBX_HEARTBEAT;
|
|
unsigned long timeout;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
if (psli->sli_flag & LPFC_SLI_ACTIVE) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (phba->sli.mbox_active)
|
|
actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
/* Determine how long we might wait for the active mailbox
|
|
* command to be gracefully completed by firmware.
|
|
*/
|
|
timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) *
|
|
1000) + jiffies;
|
|
while (phba->sli.mbox_active) {
|
|
/* Check active mailbox complete status every 2ms */
|
|
msleep(2);
|
|
if (time_after(jiffies, timeout))
|
|
/* Timeout, let the mailbox flush routine to
|
|
* forcefully release active mailbox command
|
|
*/
|
|
break;
|
|
}
|
|
}
|
|
lpfc_sli_mbox_sys_flush(phba);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_eratt_read - read sli-3 error attention events
|
|
* @phba: Pointer to HBA context.
|
|
*
|
|
* This function is called to read the SLI3 device error attention registers
|
|
* for possible error attention events. The caller must hold the hostlock
|
|
* with spin_lock_irq().
|
|
*
|
|
* This fucntion returns 1 when there is Error Attention in the Host Attention
|
|
* Register and returns 0 otherwise.
|
|
**/
|
|
static int
|
|
lpfc_sli_eratt_read(struct lpfc_hba *phba)
|
|
{
|
|
uint32_t ha_copy;
|
|
|
|
/* Read chip Host Attention (HA) register */
|
|
ha_copy = readl(phba->HAregaddr);
|
|
if (ha_copy & HA_ERATT) {
|
|
/* Read host status register to retrieve error event */
|
|
lpfc_sli_read_hs(phba);
|
|
|
|
/* Check if there is a deferred error condition is active */
|
|
if ((HS_FFER1 & phba->work_hs) &&
|
|
((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
|
|
HS_FFER6 | HS_FFER7) & phba->work_hs)) {
|
|
phba->hba_flag |= DEFER_ERATT;
|
|
/* Clear all interrupt enable conditions */
|
|
writel(0, phba->HCregaddr);
|
|
readl(phba->HCregaddr);
|
|
}
|
|
|
|
/* Set the driver HA work bitmap */
|
|
phba->work_ha |= HA_ERATT;
|
|
/* Indicate polling handles this ERATT */
|
|
phba->hba_flag |= HBA_ERATT_HANDLED;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_eratt_read - read sli-4 error attention events
|
|
* @phba: Pointer to HBA context.
|
|
*
|
|
* This function is called to read the SLI4 device error attention registers
|
|
* for possible error attention events. The caller must hold the hostlock
|
|
* with spin_lock_irq().
|
|
*
|
|
* This fucntion returns 1 when there is Error Attention in the Host Attention
|
|
* Register and returns 0 otherwise.
|
|
**/
|
|
static int
|
|
lpfc_sli4_eratt_read(struct lpfc_hba *phba)
|
|
{
|
|
uint32_t uerr_sta_hi, uerr_sta_lo;
|
|
|
|
/* For now, use the SLI4 device internal unrecoverable error
|
|
* registers for error attention. This can be changed later.
|
|
*/
|
|
uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr);
|
|
uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr);
|
|
if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
|
|
(~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"1423 HBA Unrecoverable error: "
|
|
"uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
|
|
"ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
|
|
uerr_sta_lo, uerr_sta_hi,
|
|
phba->sli4_hba.ue_mask_lo,
|
|
phba->sli4_hba.ue_mask_hi);
|
|
phba->work_status[0] = uerr_sta_lo;
|
|
phba->work_status[1] = uerr_sta_hi;
|
|
/* Set the driver HA work bitmap */
|
|
phba->work_ha |= HA_ERATT;
|
|
/* Indicate polling handles this ERATT */
|
|
phba->hba_flag |= HBA_ERATT_HANDLED;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_check_eratt - check error attention events
|
|
* @phba: Pointer to HBA context.
|
|
*
|
|
* This function is called from timer soft interrupt context to check HBA's
|
|
* error attention register bit for error attention events.
|
|
*
|
|
* This fucntion returns 1 when there is Error Attention in the Host Attention
|
|
* Register and returns 0 otherwise.
|
|
**/
|
|
int
|
|
lpfc_sli_check_eratt(struct lpfc_hba *phba)
|
|
{
|
|
uint32_t ha_copy;
|
|
|
|
/* If somebody is waiting to handle an eratt, don't process it
|
|
* here. The brdkill function will do this.
|
|
*/
|
|
if (phba->link_flag & LS_IGNORE_ERATT)
|
|
return 0;
|
|
|
|
/* Check if interrupt handler handles this ERATT */
|
|
spin_lock_irq(&phba->hbalock);
|
|
if (phba->hba_flag & HBA_ERATT_HANDLED) {
|
|
/* Interrupt handler has handled ERATT */
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* If there is deferred error attention, do not check for error
|
|
* attention
|
|
*/
|
|
if (unlikely(phba->hba_flag & DEFER_ERATT)) {
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return 0;
|
|
}
|
|
|
|
/* If PCI channel is offline, don't process it */
|
|
if (unlikely(pci_channel_offline(phba->pcidev))) {
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return 0;
|
|
}
|
|
|
|
switch (phba->sli_rev) {
|
|
case LPFC_SLI_REV2:
|
|
case LPFC_SLI_REV3:
|
|
/* Read chip Host Attention (HA) register */
|
|
ha_copy = lpfc_sli_eratt_read(phba);
|
|
break;
|
|
case LPFC_SLI_REV4:
|
|
/* Read devcie Uncoverable Error (UERR) registers */
|
|
ha_copy = lpfc_sli4_eratt_read(phba);
|
|
break;
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0299 Invalid SLI revision (%d)\n",
|
|
phba->sli_rev);
|
|
ha_copy = 0;
|
|
break;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
return ha_copy;
|
|
}
|
|
|
|
/**
|
|
* lpfc_intr_state_check - Check device state for interrupt handling
|
|
* @phba: Pointer to HBA context.
|
|
*
|
|
* This inline routine checks whether a device or its PCI slot is in a state
|
|
* that the interrupt should be handled.
|
|
*
|
|
* This function returns 0 if the device or the PCI slot is in a state that
|
|
* interrupt should be handled, otherwise -EIO.
|
|
*/
|
|
static inline int
|
|
lpfc_intr_state_check(struct lpfc_hba *phba)
|
|
{
|
|
/* If the pci channel is offline, ignore all the interrupts */
|
|
if (unlikely(pci_channel_offline(phba->pcidev)))
|
|
return -EIO;
|
|
|
|
/* Update device level interrupt statistics */
|
|
phba->sli.slistat.sli_intr++;
|
|
|
|
/* Ignore all interrupts during initialization. */
|
|
if (unlikely(phba->link_state < LPFC_LINK_DOWN))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
|
|
* @irq: Interrupt number.
|
|
* @dev_id: The device context pointer.
|
|
*
|
|
* This function is directly called from the PCI layer as an interrupt
|
|
* service routine when device with SLI-3 interface spec is enabled with
|
|
* MSI-X multi-message interrupt mode and there are slow-path events in
|
|
* the HBA. However, when the device is enabled with either MSI or Pin-IRQ
|
|
* interrupt mode, this function is called as part of the device-level
|
|
* interrupt handler. When the PCI slot is in error recovery or the HBA
|
|
* is undergoing initialization, the interrupt handler will not process
|
|
* the interrupt. The link attention and ELS ring attention events are
|
|
* handled by the worker thread. The interrupt handler signals the worker
|
|
* thread and returns for these events. This function is called without
|
|
* any lock held. It gets the hbalock to access and update SLI data
|
|
* structures.
|
|
*
|
|
* This function returns IRQ_HANDLED when interrupt is handled else it
|
|
* returns IRQ_NONE.
|
|
**/
|
|
irqreturn_t
|
|
lpfc_sli_sp_intr_handler(int irq, void *dev_id)
|
|
{
|
|
struct lpfc_hba *phba;
|
|
uint32_t ha_copy, hc_copy;
|
|
uint32_t work_ha_copy;
|
|
unsigned long status;
|
|
unsigned long iflag;
|
|
uint32_t control;
|
|
|
|
MAILBOX_t *mbox, *pmbox;
|
|
struct lpfc_vport *vport;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct lpfc_dmabuf *mp;
|
|
LPFC_MBOXQ_t *pmb;
|
|
int rc;
|
|
|
|
/*
|
|
* Get the driver's phba structure from the dev_id and
|
|
* assume the HBA is not interrupting.
|
|
*/
|
|
phba = (struct lpfc_hba *)dev_id;
|
|
|
|
if (unlikely(!phba))
|
|
return IRQ_NONE;
|
|
|
|
/*
|
|
* Stuff needs to be attented to when this function is invoked as an
|
|
* individual interrupt handler in MSI-X multi-message interrupt mode
|
|
*/
|
|
if (phba->intr_type == MSIX) {
|
|
/* Check device state for handling interrupt */
|
|
if (lpfc_intr_state_check(phba))
|
|
return IRQ_NONE;
|
|
/* Need to read HA REG for slow-path events */
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
ha_copy = readl(phba->HAregaddr);
|
|
/* If somebody is waiting to handle an eratt don't process it
|
|
* here. The brdkill function will do this.
|
|
*/
|
|
if (phba->link_flag & LS_IGNORE_ERATT)
|
|
ha_copy &= ~HA_ERATT;
|
|
/* Check the need for handling ERATT in interrupt handler */
|
|
if (ha_copy & HA_ERATT) {
|
|
if (phba->hba_flag & HBA_ERATT_HANDLED)
|
|
/* ERATT polling has handled ERATT */
|
|
ha_copy &= ~HA_ERATT;
|
|
else
|
|
/* Indicate interrupt handler handles ERATT */
|
|
phba->hba_flag |= HBA_ERATT_HANDLED;
|
|
}
|
|
|
|
/*
|
|
* If there is deferred error attention, do not check for any
|
|
* interrupt.
|
|
*/
|
|
if (unlikely(phba->hba_flag & DEFER_ERATT)) {
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
/* Clear up only attention source related to slow-path */
|
|
hc_copy = readl(phba->HCregaddr);
|
|
writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
|
|
HC_LAINT_ENA | HC_ERINT_ENA),
|
|
phba->HCregaddr);
|
|
writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
|
|
phba->HAregaddr);
|
|
writel(hc_copy, phba->HCregaddr);
|
|
readl(phba->HAregaddr); /* flush */
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
} else
|
|
ha_copy = phba->ha_copy;
|
|
|
|
work_ha_copy = ha_copy & phba->work_ha_mask;
|
|
|
|
if (work_ha_copy) {
|
|
if (work_ha_copy & HA_LATT) {
|
|
if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
|
|
/*
|
|
* Turn off Link Attention interrupts
|
|
* until CLEAR_LA done
|
|
*/
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
|
|
control = readl(phba->HCregaddr);
|
|
control &= ~HC_LAINT_ENA;
|
|
writel(control, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
}
|
|
else
|
|
work_ha_copy &= ~HA_LATT;
|
|
}
|
|
|
|
if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
|
|
/*
|
|
* Turn off Slow Rings interrupts, LPFC_ELS_RING is
|
|
* the only slow ring.
|
|
*/
|
|
status = (work_ha_copy &
|
|
(HA_RXMASK << (4*LPFC_ELS_RING)));
|
|
status >>= (4*LPFC_ELS_RING);
|
|
if (status & HA_RXMASK) {
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
control = readl(phba->HCregaddr);
|
|
|
|
lpfc_debugfs_slow_ring_trc(phba,
|
|
"ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
|
|
control, status,
|
|
(uint32_t)phba->sli.slistat.sli_intr);
|
|
|
|
if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
|
|
lpfc_debugfs_slow_ring_trc(phba,
|
|
"ISR Disable ring:"
|
|
"pwork:x%x hawork:x%x wait:x%x",
|
|
phba->work_ha, work_ha_copy,
|
|
(uint32_t)((unsigned long)
|
|
&phba->work_waitq));
|
|
|
|
control &=
|
|
~(HC_R0INT_ENA << LPFC_ELS_RING);
|
|
writel(control, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
}
|
|
else {
|
|
lpfc_debugfs_slow_ring_trc(phba,
|
|
"ISR slow ring: pwork:"
|
|
"x%x hawork:x%x wait:x%x",
|
|
phba->work_ha, work_ha_copy,
|
|
(uint32_t)((unsigned long)
|
|
&phba->work_waitq));
|
|
}
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
}
|
|
}
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
if (work_ha_copy & HA_ERATT) {
|
|
lpfc_sli_read_hs(phba);
|
|
/*
|
|
* Check if there is a deferred error condition
|
|
* is active
|
|
*/
|
|
if ((HS_FFER1 & phba->work_hs) &&
|
|
((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
|
|
HS_FFER6 | HS_FFER7) & phba->work_hs)) {
|
|
phba->hba_flag |= DEFER_ERATT;
|
|
/* Clear all interrupt enable conditions */
|
|
writel(0, phba->HCregaddr);
|
|
readl(phba->HCregaddr);
|
|
}
|
|
}
|
|
|
|
if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
|
|
pmb = phba->sli.mbox_active;
|
|
pmbox = &pmb->u.mb;
|
|
mbox = phba->mbox;
|
|
vport = pmb->vport;
|
|
|
|
/* First check out the status word */
|
|
lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
|
|
if (pmbox->mbxOwner != OWN_HOST) {
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
/*
|
|
* Stray Mailbox Interrupt, mbxCommand <cmd>
|
|
* mbxStatus <status>
|
|
*/
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
|
|
LOG_SLI,
|
|
"(%d):0304 Stray Mailbox "
|
|
"Interrupt mbxCommand x%x "
|
|
"mbxStatus x%x\n",
|
|
(vport ? vport->vpi : 0),
|
|
pmbox->mbxCommand,
|
|
pmbox->mbxStatus);
|
|
/* clear mailbox attention bit */
|
|
work_ha_copy &= ~HA_MBATT;
|
|
} else {
|
|
phba->sli.mbox_active = NULL;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
phba->last_completion_time = jiffies;
|
|
del_timer(&phba->sli.mbox_tmo);
|
|
if (pmb->mbox_cmpl) {
|
|
lpfc_sli_pcimem_bcopy(mbox, pmbox,
|
|
MAILBOX_CMD_SIZE);
|
|
}
|
|
if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
|
|
pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
|
|
|
|
lpfc_debugfs_disc_trc(vport,
|
|
LPFC_DISC_TRC_MBOX_VPORT,
|
|
"MBOX dflt rpi: : "
|
|
"status:x%x rpi:x%x",
|
|
(uint32_t)pmbox->mbxStatus,
|
|
pmbox->un.varWords[0], 0);
|
|
|
|
if (!pmbox->mbxStatus) {
|
|
mp = (struct lpfc_dmabuf *)
|
|
(pmb->context1);
|
|
ndlp = (struct lpfc_nodelist *)
|
|
pmb->context2;
|
|
|
|
/* Reg_LOGIN of dflt RPI was
|
|
* successful. new lets get
|
|
* rid of the RPI using the
|
|
* same mbox buffer.
|
|
*/
|
|
lpfc_unreg_login(phba,
|
|
vport->vpi,
|
|
pmbox->un.varWords[0],
|
|
pmb);
|
|
pmb->mbox_cmpl =
|
|
lpfc_mbx_cmpl_dflt_rpi;
|
|
pmb->context1 = mp;
|
|
pmb->context2 = ndlp;
|
|
pmb->vport = vport;
|
|
rc = lpfc_sli_issue_mbox(phba,
|
|
pmb,
|
|
MBX_NOWAIT);
|
|
if (rc != MBX_BUSY)
|
|
lpfc_printf_log(phba,
|
|
KERN_ERR,
|
|
LOG_MBOX | LOG_SLI,
|
|
"0350 rc should have"
|
|
"been MBX_BUSY\n");
|
|
if (rc != MBX_NOT_FINISHED)
|
|
goto send_current_mbox;
|
|
}
|
|
}
|
|
spin_lock_irqsave(
|
|
&phba->pport->work_port_lock,
|
|
iflag);
|
|
phba->pport->work_port_events &=
|
|
~WORKER_MBOX_TMO;
|
|
spin_unlock_irqrestore(
|
|
&phba->pport->work_port_lock,
|
|
iflag);
|
|
lpfc_mbox_cmpl_put(phba, pmb);
|
|
}
|
|
} else
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
|
|
if ((work_ha_copy & HA_MBATT) &&
|
|
(phba->sli.mbox_active == NULL)) {
|
|
send_current_mbox:
|
|
/* Process next mailbox command if there is one */
|
|
do {
|
|
rc = lpfc_sli_issue_mbox(phba, NULL,
|
|
MBX_NOWAIT);
|
|
} while (rc == MBX_NOT_FINISHED);
|
|
if (rc != MBX_SUCCESS)
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
|
|
LOG_SLI, "0349 rc should be "
|
|
"MBX_SUCCESS\n");
|
|
}
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
phba->work_ha |= work_ha_copy;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
lpfc_worker_wake_up(phba);
|
|
}
|
|
return IRQ_HANDLED;
|
|
|
|
} /* lpfc_sli_sp_intr_handler */
|
|
|
|
/**
|
|
* lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
|
|
* @irq: Interrupt number.
|
|
* @dev_id: The device context pointer.
|
|
*
|
|
* This function is directly called from the PCI layer as an interrupt
|
|
* service routine when device with SLI-3 interface spec is enabled with
|
|
* MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
|
|
* ring event in the HBA. However, when the device is enabled with either
|
|
* MSI or Pin-IRQ interrupt mode, this function is called as part of the
|
|
* device-level interrupt handler. When the PCI slot is in error recovery
|
|
* or the HBA is undergoing initialization, the interrupt handler will not
|
|
* process the interrupt. The SCSI FCP fast-path ring event are handled in
|
|
* the intrrupt context. This function is called without any lock held.
|
|
* It gets the hbalock to access and update SLI data structures.
|
|
*
|
|
* This function returns IRQ_HANDLED when interrupt is handled else it
|
|
* returns IRQ_NONE.
|
|
**/
|
|
irqreturn_t
|
|
lpfc_sli_fp_intr_handler(int irq, void *dev_id)
|
|
{
|
|
struct lpfc_hba *phba;
|
|
uint32_t ha_copy;
|
|
unsigned long status;
|
|
unsigned long iflag;
|
|
|
|
/* Get the driver's phba structure from the dev_id and
|
|
* assume the HBA is not interrupting.
|
|
*/
|
|
phba = (struct lpfc_hba *) dev_id;
|
|
|
|
if (unlikely(!phba))
|
|
return IRQ_NONE;
|
|
|
|
/*
|
|
* Stuff needs to be attented to when this function is invoked as an
|
|
* individual interrupt handler in MSI-X multi-message interrupt mode
|
|
*/
|
|
if (phba->intr_type == MSIX) {
|
|
/* Check device state for handling interrupt */
|
|
if (lpfc_intr_state_check(phba))
|
|
return IRQ_NONE;
|
|
/* Need to read HA REG for FCP ring and other ring events */
|
|
ha_copy = readl(phba->HAregaddr);
|
|
/* Clear up only attention source related to fast-path */
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
/*
|
|
* If there is deferred error attention, do not check for
|
|
* any interrupt.
|
|
*/
|
|
if (unlikely(phba->hba_flag & DEFER_ERATT)) {
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return IRQ_NONE;
|
|
}
|
|
writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
|
|
phba->HAregaddr);
|
|
readl(phba->HAregaddr); /* flush */
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
} else
|
|
ha_copy = phba->ha_copy;
|
|
|
|
/*
|
|
* Process all events on FCP ring. Take the optimized path for FCP IO.
|
|
*/
|
|
ha_copy &= ~(phba->work_ha_mask);
|
|
|
|
status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
|
|
status >>= (4*LPFC_FCP_RING);
|
|
if (status & HA_RXMASK)
|
|
lpfc_sli_handle_fast_ring_event(phba,
|
|
&phba->sli.ring[LPFC_FCP_RING],
|
|
status);
|
|
|
|
if (phba->cfg_multi_ring_support == 2) {
|
|
/*
|
|
* Process all events on extra ring. Take the optimized path
|
|
* for extra ring IO.
|
|
*/
|
|
status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
|
|
status >>= (4*LPFC_EXTRA_RING);
|
|
if (status & HA_RXMASK) {
|
|
lpfc_sli_handle_fast_ring_event(phba,
|
|
&phba->sli.ring[LPFC_EXTRA_RING],
|
|
status);
|
|
}
|
|
}
|
|
return IRQ_HANDLED;
|
|
} /* lpfc_sli_fp_intr_handler */
|
|
|
|
/**
|
|
* lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
|
|
* @irq: Interrupt number.
|
|
* @dev_id: The device context pointer.
|
|
*
|
|
* This function is the HBA device-level interrupt handler to device with
|
|
* SLI-3 interface spec, called from the PCI layer when either MSI or
|
|
* Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
|
|
* requires driver attention. This function invokes the slow-path interrupt
|
|
* attention handling function and fast-path interrupt attention handling
|
|
* function in turn to process the relevant HBA attention events. This
|
|
* function is called without any lock held. It gets the hbalock to access
|
|
* and update SLI data structures.
|
|
*
|
|
* This function returns IRQ_HANDLED when interrupt is handled, else it
|
|
* returns IRQ_NONE.
|
|
**/
|
|
irqreturn_t
|
|
lpfc_sli_intr_handler(int irq, void *dev_id)
|
|
{
|
|
struct lpfc_hba *phba;
|
|
irqreturn_t sp_irq_rc, fp_irq_rc;
|
|
unsigned long status1, status2;
|
|
uint32_t hc_copy;
|
|
|
|
/*
|
|
* Get the driver's phba structure from the dev_id and
|
|
* assume the HBA is not interrupting.
|
|
*/
|
|
phba = (struct lpfc_hba *) dev_id;
|
|
|
|
if (unlikely(!phba))
|
|
return IRQ_NONE;
|
|
|
|
/* Check device state for handling interrupt */
|
|
if (lpfc_intr_state_check(phba))
|
|
return IRQ_NONE;
|
|
|
|
spin_lock(&phba->hbalock);
|
|
phba->ha_copy = readl(phba->HAregaddr);
|
|
if (unlikely(!phba->ha_copy)) {
|
|
spin_unlock(&phba->hbalock);
|
|
return IRQ_NONE;
|
|
} else if (phba->ha_copy & HA_ERATT) {
|
|
if (phba->hba_flag & HBA_ERATT_HANDLED)
|
|
/* ERATT polling has handled ERATT */
|
|
phba->ha_copy &= ~HA_ERATT;
|
|
else
|
|
/* Indicate interrupt handler handles ERATT */
|
|
phba->hba_flag |= HBA_ERATT_HANDLED;
|
|
}
|
|
|
|
/*
|
|
* If there is deferred error attention, do not check for any interrupt.
|
|
*/
|
|
if (unlikely(phba->hba_flag & DEFER_ERATT)) {
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
/* Clear attention sources except link and error attentions */
|
|
hc_copy = readl(phba->HCregaddr);
|
|
writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
|
|
| HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
|
|
phba->HCregaddr);
|
|
writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
|
|
writel(hc_copy, phba->HCregaddr);
|
|
readl(phba->HAregaddr); /* flush */
|
|
spin_unlock(&phba->hbalock);
|
|
|
|
/*
|
|
* Invokes slow-path host attention interrupt handling as appropriate.
|
|
*/
|
|
|
|
/* status of events with mailbox and link attention */
|
|
status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
|
|
|
|
/* status of events with ELS ring */
|
|
status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
|
|
status2 >>= (4*LPFC_ELS_RING);
|
|
|
|
if (status1 || (status2 & HA_RXMASK))
|
|
sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
|
|
else
|
|
sp_irq_rc = IRQ_NONE;
|
|
|
|
/*
|
|
* Invoke fast-path host attention interrupt handling as appropriate.
|
|
*/
|
|
|
|
/* status of events with FCP ring */
|
|
status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
|
|
status1 >>= (4*LPFC_FCP_RING);
|
|
|
|
/* status of events with extra ring */
|
|
if (phba->cfg_multi_ring_support == 2) {
|
|
status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
|
|
status2 >>= (4*LPFC_EXTRA_RING);
|
|
} else
|
|
status2 = 0;
|
|
|
|
if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
|
|
fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
|
|
else
|
|
fp_irq_rc = IRQ_NONE;
|
|
|
|
/* Return device-level interrupt handling status */
|
|
return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
|
|
} /* lpfc_sli_intr_handler */
|
|
|
|
/**
|
|
* lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is invoked by the worker thread to process all the pending
|
|
* SLI4 FCP abort XRI events.
|
|
**/
|
|
void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_cq_event *cq_event;
|
|
|
|
/* First, declare the fcp xri abort event has been handled */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
/* Now, handle all the fcp xri abort events */
|
|
while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
|
|
/* Get the first event from the head of the event queue */
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
|
|
cq_event, struct lpfc_cq_event, list);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
/* Notify aborted XRI for FCP work queue */
|
|
lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
|
|
/* Free the event processed back to the free pool */
|
|
lpfc_sli4_cq_event_release(phba, cq_event);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is invoked by the worker thread to process all the pending
|
|
* SLI4 els abort xri events.
|
|
**/
|
|
void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_cq_event *cq_event;
|
|
|
|
/* First, declare the els xri abort event has been handled */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
/* Now, handle all the els xri abort events */
|
|
while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
|
|
/* Get the first event from the head of the event queue */
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
|
|
cq_event, struct lpfc_cq_event, list);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
/* Notify aborted XRI for ELS work queue */
|
|
lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
|
|
/* Free the event processed back to the free pool */
|
|
lpfc_sli4_cq_event_release(phba, cq_event);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
|
|
* @phba: pointer to lpfc hba data structure
|
|
* @pIocbIn: pointer to the rspiocbq
|
|
* @pIocbOut: pointer to the cmdiocbq
|
|
* @wcqe: pointer to the complete wcqe
|
|
*
|
|
* This routine transfers the fields of a command iocbq to a response iocbq
|
|
* by copying all the IOCB fields from command iocbq and transferring the
|
|
* completion status information from the complete wcqe.
|
|
**/
|
|
static void
|
|
lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
|
|
struct lpfc_iocbq *pIocbIn,
|
|
struct lpfc_iocbq *pIocbOut,
|
|
struct lpfc_wcqe_complete *wcqe)
|
|
{
|
|
unsigned long iflags;
|
|
size_t offset = offsetof(struct lpfc_iocbq, iocb);
|
|
|
|
memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
|
|
sizeof(struct lpfc_iocbq) - offset);
|
|
/* Map WCQE parameters into irspiocb parameters */
|
|
pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe);
|
|
if (pIocbOut->iocb_flag & LPFC_IO_FCP)
|
|
if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
|
|
pIocbIn->iocb.un.fcpi.fcpi_parm =
|
|
pIocbOut->iocb.un.fcpi.fcpi_parm -
|
|
wcqe->total_data_placed;
|
|
else
|
|
pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
|
|
else {
|
|
pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
|
|
pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
|
|
}
|
|
|
|
/* Pick up HBA exchange busy condition */
|
|
if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
|
|
* @phba: Pointer to HBA context object.
|
|
* @wcqe: Pointer to work-queue completion queue entry.
|
|
*
|
|
* This routine handles an ELS work-queue completion event and construct
|
|
* a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
|
|
* discovery engine to handle.
|
|
*
|
|
* Return: Pointer to the receive IOCBQ, NULL otherwise.
|
|
**/
|
|
static struct lpfc_iocbq *
|
|
lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
|
|
struct lpfc_iocbq *irspiocbq)
|
|
{
|
|
struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
|
|
struct lpfc_iocbq *cmdiocbq;
|
|
struct lpfc_wcqe_complete *wcqe;
|
|
unsigned long iflags;
|
|
|
|
wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
pring->stats.iocb_event++;
|
|
/* Look up the ELS command IOCB and create pseudo response IOCB */
|
|
cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
|
|
bf_get(lpfc_wcqe_c_request_tag, wcqe));
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
|
|
if (unlikely(!cmdiocbq)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"0386 ELS complete with no corresponding "
|
|
"cmdiocb: iotag (%d)\n",
|
|
bf_get(lpfc_wcqe_c_request_tag, wcqe));
|
|
lpfc_sli_release_iocbq(phba, irspiocbq);
|
|
return NULL;
|
|
}
|
|
|
|
/* Fake the irspiocbq and copy necessary response information */
|
|
lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
|
|
|
|
return irspiocbq;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
|
|
* @phba: Pointer to HBA context object.
|
|
* @cqe: Pointer to mailbox completion queue entry.
|
|
*
|
|
* This routine process a mailbox completion queue entry with asynchrous
|
|
* event.
|
|
*
|
|
* Return: true if work posted to worker thread, otherwise false.
|
|
**/
|
|
static bool
|
|
lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
|
|
{
|
|
struct lpfc_cq_event *cq_event;
|
|
unsigned long iflags;
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
|
|
"0392 Async Event: word0:x%x, word1:x%x, "
|
|
"word2:x%x, word3:x%x\n", mcqe->word0,
|
|
mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
|
|
|
|
/* Allocate a new internal CQ_EVENT entry */
|
|
cq_event = lpfc_sli4_cq_event_alloc(phba);
|
|
if (!cq_event) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0394 Failed to allocate CQ_EVENT entry\n");
|
|
return false;
|
|
}
|
|
|
|
/* Move the CQE into an asynchronous event entry */
|
|
memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
|
|
/* Set the async event flag */
|
|
phba->hba_flag |= ASYNC_EVENT;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
|
|
* @phba: Pointer to HBA context object.
|
|
* @cqe: Pointer to mailbox completion queue entry.
|
|
*
|
|
* This routine process a mailbox completion queue entry with mailbox
|
|
* completion event.
|
|
*
|
|
* Return: true if work posted to worker thread, otherwise false.
|
|
**/
|
|
static bool
|
|
lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
|
|
{
|
|
uint32_t mcqe_status;
|
|
MAILBOX_t *mbox, *pmbox;
|
|
struct lpfc_mqe *mqe;
|
|
struct lpfc_vport *vport;
|
|
struct lpfc_nodelist *ndlp;
|
|
struct lpfc_dmabuf *mp;
|
|
unsigned long iflags;
|
|
LPFC_MBOXQ_t *pmb;
|
|
bool workposted = false;
|
|
int rc;
|
|
|
|
/* If not a mailbox complete MCQE, out by checking mailbox consume */
|
|
if (!bf_get(lpfc_trailer_completed, mcqe))
|
|
goto out_no_mqe_complete;
|
|
|
|
/* Get the reference to the active mbox command */
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
pmb = phba->sli.mbox_active;
|
|
if (unlikely(!pmb)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
|
|
"1832 No pending MBOX command to handle\n");
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
goto out_no_mqe_complete;
|
|
}
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
mqe = &pmb->u.mqe;
|
|
pmbox = (MAILBOX_t *)&pmb->u.mqe;
|
|
mbox = phba->mbox;
|
|
vport = pmb->vport;
|
|
|
|
/* Reset heartbeat timer */
|
|
phba->last_completion_time = jiffies;
|
|
del_timer(&phba->sli.mbox_tmo);
|
|
|
|
/* Move mbox data to caller's mailbox region, do endian swapping */
|
|
if (pmb->mbox_cmpl && mbox)
|
|
lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
|
|
/* Set the mailbox status with SLI4 range 0x4000 */
|
|
mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
|
|
if (mcqe_status != MB_CQE_STATUS_SUCCESS)
|
|
bf_set(lpfc_mqe_status, mqe,
|
|
(LPFC_MBX_ERROR_RANGE | mcqe_status));
|
|
|
|
if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
|
|
pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
|
|
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
|
|
"MBOX dflt rpi: status:x%x rpi:x%x",
|
|
mcqe_status,
|
|
pmbox->un.varWords[0], 0);
|
|
if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
|
|
mp = (struct lpfc_dmabuf *)(pmb->context1);
|
|
ndlp = (struct lpfc_nodelist *)pmb->context2;
|
|
/* Reg_LOGIN of dflt RPI was successful. Now lets get
|
|
* RID of the PPI using the same mbox buffer.
|
|
*/
|
|
lpfc_unreg_login(phba, vport->vpi,
|
|
pmbox->un.varWords[0], pmb);
|
|
pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
|
|
pmb->context1 = mp;
|
|
pmb->context2 = ndlp;
|
|
pmb->vport = vport;
|
|
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
|
|
if (rc != MBX_BUSY)
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
|
|
LOG_SLI, "0385 rc should "
|
|
"have been MBX_BUSY\n");
|
|
if (rc != MBX_NOT_FINISHED)
|
|
goto send_current_mbox;
|
|
}
|
|
}
|
|
spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
|
|
phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
|
|
spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
|
|
|
|
/* There is mailbox completion work to do */
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
__lpfc_mbox_cmpl_put(phba, pmb);
|
|
phba->work_ha |= HA_MBATT;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
workposted = true;
|
|
|
|
send_current_mbox:
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
/* Release the mailbox command posting token */
|
|
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
/* Setting active mailbox pointer need to be in sync to flag clear */
|
|
phba->sli.mbox_active = NULL;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
/* Wake up worker thread to post the next pending mailbox command */
|
|
lpfc_worker_wake_up(phba);
|
|
out_no_mqe_complete:
|
|
if (bf_get(lpfc_trailer_consumed, mcqe))
|
|
lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
|
|
return workposted;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
|
|
* @phba: Pointer to HBA context object.
|
|
* @cqe: Pointer to mailbox completion queue entry.
|
|
*
|
|
* This routine process a mailbox completion queue entry, it invokes the
|
|
* proper mailbox complete handling or asynchrous event handling routine
|
|
* according to the MCQE's async bit.
|
|
*
|
|
* Return: true if work posted to worker thread, otherwise false.
|
|
**/
|
|
static bool
|
|
lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
|
|
{
|
|
struct lpfc_mcqe mcqe;
|
|
bool workposted;
|
|
|
|
/* Copy the mailbox MCQE and convert endian order as needed */
|
|
lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
|
|
|
|
/* Invoke the proper event handling routine */
|
|
if (!bf_get(lpfc_trailer_async, &mcqe))
|
|
workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
|
|
else
|
|
workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
|
|
return workposted;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
|
|
* @phba: Pointer to HBA context object.
|
|
* @wcqe: Pointer to work-queue completion queue entry.
|
|
*
|
|
* This routine handles an ELS work-queue completion event.
|
|
*
|
|
* Return: true if work posted to worker thread, otherwise false.
|
|
**/
|
|
static bool
|
|
lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
|
|
struct lpfc_wcqe_complete *wcqe)
|
|
{
|
|
struct lpfc_iocbq *irspiocbq;
|
|
unsigned long iflags;
|
|
|
|
/* Get an irspiocbq for later ELS response processing use */
|
|
irspiocbq = lpfc_sli_get_iocbq(phba);
|
|
if (!irspiocbq) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0387 Failed to allocate an iocbq\n");
|
|
return false;
|
|
}
|
|
|
|
/* Save off the slow-path queue event for work thread to process */
|
|
memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
list_add_tail(&irspiocbq->cq_event.list,
|
|
&phba->sli4_hba.sp_queue_event);
|
|
phba->hba_flag |= HBA_SP_QUEUE_EVT;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
|
|
* @phba: Pointer to HBA context object.
|
|
* @wcqe: Pointer to work-queue completion queue entry.
|
|
*
|
|
* This routine handles slow-path WQ entry comsumed event by invoking the
|
|
* proper WQ release routine to the slow-path WQ.
|
|
**/
|
|
static void
|
|
lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
|
|
struct lpfc_wcqe_release *wcqe)
|
|
{
|
|
/* Check for the slow-path ELS work queue */
|
|
if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
|
|
lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
|
|
bf_get(lpfc_wcqe_r_wqe_index, wcqe));
|
|
else
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"2579 Slow-path wqe consume event carries "
|
|
"miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
|
|
bf_get(lpfc_wcqe_r_wqe_index, wcqe),
|
|
phba->sli4_hba.els_wq->queue_id);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
|
|
* @phba: Pointer to HBA context object.
|
|
* @cq: Pointer to a WQ completion queue.
|
|
* @wcqe: Pointer to work-queue completion queue entry.
|
|
*
|
|
* This routine handles an XRI abort event.
|
|
*
|
|
* Return: true if work posted to worker thread, otherwise false.
|
|
**/
|
|
static bool
|
|
lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
|
|
struct lpfc_queue *cq,
|
|
struct sli4_wcqe_xri_aborted *wcqe)
|
|
{
|
|
bool workposted = false;
|
|
struct lpfc_cq_event *cq_event;
|
|
unsigned long iflags;
|
|
|
|
/* Allocate a new internal CQ_EVENT entry */
|
|
cq_event = lpfc_sli4_cq_event_alloc(phba);
|
|
if (!cq_event) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0602 Failed to allocate CQ_EVENT entry\n");
|
|
return false;
|
|
}
|
|
|
|
/* Move the CQE into the proper xri abort event list */
|
|
memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
|
|
switch (cq->subtype) {
|
|
case LPFC_FCP:
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
list_add_tail(&cq_event->list,
|
|
&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
|
|
/* Set the fcp xri abort event flag */
|
|
phba->hba_flag |= FCP_XRI_ABORT_EVENT;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
workposted = true;
|
|
break;
|
|
case LPFC_ELS:
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
list_add_tail(&cq_event->list,
|
|
&phba->sli4_hba.sp_els_xri_aborted_work_queue);
|
|
/* Set the els xri abort event flag */
|
|
phba->hba_flag |= ELS_XRI_ABORT_EVENT;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
workposted = true;
|
|
break;
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0603 Invalid work queue CQE subtype (x%x)\n",
|
|
cq->subtype);
|
|
workposted = false;
|
|
break;
|
|
}
|
|
return workposted;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
|
|
* @phba: Pointer to HBA context object.
|
|
* @rcqe: Pointer to receive-queue completion queue entry.
|
|
*
|
|
* This routine process a receive-queue completion queue entry.
|
|
*
|
|
* Return: true if work posted to worker thread, otherwise false.
|
|
**/
|
|
static bool
|
|
lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
|
|
{
|
|
bool workposted = false;
|
|
struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
|
|
struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
|
|
struct hbq_dmabuf *dma_buf;
|
|
uint32_t status;
|
|
unsigned long iflags;
|
|
|
|
if (bf_get(lpfc_rcqe_rq_id, rcqe) != hrq->queue_id)
|
|
goto out;
|
|
|
|
status = bf_get(lpfc_rcqe_status, rcqe);
|
|
switch (status) {
|
|
case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2537 Receive Frame Truncated!!\n");
|
|
case FC_STATUS_RQ_SUCCESS:
|
|
lpfc_sli4_rq_release(hrq, drq);
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
|
|
if (!dma_buf) {
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
goto out;
|
|
}
|
|
memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
|
|
/* save off the frame for the word thread to process */
|
|
list_add_tail(&dma_buf->cq_event.list,
|
|
&phba->sli4_hba.sp_queue_event);
|
|
/* Frame received */
|
|
phba->hba_flag |= HBA_SP_QUEUE_EVT;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
workposted = true;
|
|
break;
|
|
case FC_STATUS_INSUFF_BUF_NEED_BUF:
|
|
case FC_STATUS_INSUFF_BUF_FRM_DISC:
|
|
/* Post more buffers if possible */
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
workposted = true;
|
|
break;
|
|
}
|
|
out:
|
|
return workposted;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
|
|
* @phba: Pointer to HBA context object.
|
|
* @cq: Pointer to the completion queue.
|
|
* @wcqe: Pointer to a completion queue entry.
|
|
*
|
|
* This routine process a slow-path work-queue or recieve queue completion queue
|
|
* entry.
|
|
*
|
|
* Return: true if work posted to worker thread, otherwise false.
|
|
**/
|
|
static bool
|
|
lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
|
|
struct lpfc_cqe *cqe)
|
|
{
|
|
struct lpfc_cqe cqevt;
|
|
bool workposted = false;
|
|
|
|
/* Copy the work queue CQE and convert endian order if needed */
|
|
lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
|
|
|
|
/* Check and process for different type of WCQE and dispatch */
|
|
switch (bf_get(lpfc_cqe_code, &cqevt)) {
|
|
case CQE_CODE_COMPL_WQE:
|
|
/* Process the WQ/RQ complete event */
|
|
workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
|
|
(struct lpfc_wcqe_complete *)&cqevt);
|
|
break;
|
|
case CQE_CODE_RELEASE_WQE:
|
|
/* Process the WQ release event */
|
|
lpfc_sli4_sp_handle_rel_wcqe(phba,
|
|
(struct lpfc_wcqe_release *)&cqevt);
|
|
break;
|
|
case CQE_CODE_XRI_ABORTED:
|
|
/* Process the WQ XRI abort event */
|
|
workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
|
|
(struct sli4_wcqe_xri_aborted *)&cqevt);
|
|
break;
|
|
case CQE_CODE_RECEIVE:
|
|
/* Process the RQ event */
|
|
workposted = lpfc_sli4_sp_handle_rcqe(phba,
|
|
(struct lpfc_rcqe *)&cqevt);
|
|
break;
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0388 Not a valid WCQE code: x%x\n",
|
|
bf_get(lpfc_cqe_code, &cqevt));
|
|
break;
|
|
}
|
|
return workposted;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
|
|
* @phba: Pointer to HBA context object.
|
|
* @eqe: Pointer to fast-path event queue entry.
|
|
*
|
|
* This routine process a event queue entry from the slow-path event queue.
|
|
* It will check the MajorCode and MinorCode to determine this is for a
|
|
* completion event on a completion queue, if not, an error shall be logged
|
|
* and just return. Otherwise, it will get to the corresponding completion
|
|
* queue and process all the entries on that completion queue, rearm the
|
|
* completion queue, and then return.
|
|
*
|
|
**/
|
|
static void
|
|
lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
|
|
{
|
|
struct lpfc_queue *cq = NULL, *childq, *speq;
|
|
struct lpfc_cqe *cqe;
|
|
bool workposted = false;
|
|
int ecount = 0;
|
|
uint16_t cqid;
|
|
|
|
if (bf_get(lpfc_eqe_major_code, eqe) != 0) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0359 Not a valid slow-path completion "
|
|
"event: majorcode=x%x, minorcode=x%x\n",
|
|
bf_get(lpfc_eqe_major_code, eqe),
|
|
bf_get(lpfc_eqe_minor_code, eqe));
|
|
return;
|
|
}
|
|
|
|
/* Get the reference to the corresponding CQ */
|
|
cqid = bf_get(lpfc_eqe_resource_id, eqe);
|
|
|
|
/* Search for completion queue pointer matching this cqid */
|
|
speq = phba->sli4_hba.sp_eq;
|
|
list_for_each_entry(childq, &speq->child_list, list) {
|
|
if (childq->queue_id == cqid) {
|
|
cq = childq;
|
|
break;
|
|
}
|
|
}
|
|
if (unlikely(!cq)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0365 Slow-path CQ identifier (%d) does "
|
|
"not exist\n", cqid);
|
|
return;
|
|
}
|
|
|
|
/* Process all the entries to the CQ */
|
|
switch (cq->type) {
|
|
case LPFC_MCQ:
|
|
while ((cqe = lpfc_sli4_cq_get(cq))) {
|
|
workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
|
|
if (!(++ecount % LPFC_GET_QE_REL_INT))
|
|
lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
|
|
}
|
|
break;
|
|
case LPFC_WCQ:
|
|
while ((cqe = lpfc_sli4_cq_get(cq))) {
|
|
workposted |= lpfc_sli4_sp_handle_cqe(phba, cq, cqe);
|
|
if (!(++ecount % LPFC_GET_QE_REL_INT))
|
|
lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
|
|
}
|
|
break;
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0370 Invalid completion queue type (%d)\n",
|
|
cq->type);
|
|
return;
|
|
}
|
|
|
|
/* Catch the no cq entry condition, log an error */
|
|
if (unlikely(ecount == 0))
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0371 No entry from the CQ: identifier "
|
|
"(x%x), type (%d)\n", cq->queue_id, cq->type);
|
|
|
|
/* In any case, flash and re-arm the RCQ */
|
|
lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
|
|
|
|
/* wake up worker thread if there are works to be done */
|
|
if (workposted)
|
|
lpfc_worker_wake_up(phba);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
|
|
* @eqe: Pointer to fast-path completion queue entry.
|
|
*
|
|
* This routine process a fast-path work queue completion entry from fast-path
|
|
* event queue for FCP command response completion.
|
|
**/
|
|
static void
|
|
lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
|
|
struct lpfc_wcqe_complete *wcqe)
|
|
{
|
|
struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
|
|
struct lpfc_iocbq *cmdiocbq;
|
|
struct lpfc_iocbq irspiocbq;
|
|
unsigned long iflags;
|
|
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
pring->stats.iocb_event++;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
|
|
/* Check for response status */
|
|
if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
|
|
/* If resource errors reported from HBA, reduce queue
|
|
* depth of the SCSI device.
|
|
*/
|
|
if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
|
|
IOSTAT_LOCAL_REJECT) &&
|
|
(wcqe->parameter == IOERR_NO_RESOURCES)) {
|
|
phba->lpfc_rampdown_queue_depth(phba);
|
|
}
|
|
/* Log the error status */
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"0373 FCP complete error: status=x%x, "
|
|
"hw_status=x%x, total_data_specified=%d, "
|
|
"parameter=x%x, word3=x%x\n",
|
|
bf_get(lpfc_wcqe_c_status, wcqe),
|
|
bf_get(lpfc_wcqe_c_hw_status, wcqe),
|
|
wcqe->total_data_placed, wcqe->parameter,
|
|
wcqe->word3);
|
|
}
|
|
|
|
/* Look up the FCP command IOCB and create pseudo response IOCB */
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
|
|
bf_get(lpfc_wcqe_c_request_tag, wcqe));
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
if (unlikely(!cmdiocbq)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"0374 FCP complete with no corresponding "
|
|
"cmdiocb: iotag (%d)\n",
|
|
bf_get(lpfc_wcqe_c_request_tag, wcqe));
|
|
return;
|
|
}
|
|
if (unlikely(!cmdiocbq->iocb_cmpl)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"0375 FCP cmdiocb not callback function "
|
|
"iotag: (%d)\n",
|
|
bf_get(lpfc_wcqe_c_request_tag, wcqe));
|
|
return;
|
|
}
|
|
|
|
/* Fake the irspiocb and copy necessary response information */
|
|
lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
|
|
|
|
if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
|
|
spin_lock_irqsave(&phba->hbalock, iflags);
|
|
cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
|
|
spin_unlock_irqrestore(&phba->hbalock, iflags);
|
|
}
|
|
|
|
/* Pass the cmd_iocb and the rsp state to the upper layer */
|
|
(cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
|
|
* @phba: Pointer to HBA context object.
|
|
* @cq: Pointer to completion queue.
|
|
* @wcqe: Pointer to work-queue completion queue entry.
|
|
*
|
|
* This routine handles an fast-path WQ entry comsumed event by invoking the
|
|
* proper WQ release routine to the slow-path WQ.
|
|
**/
|
|
static void
|
|
lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
|
|
struct lpfc_wcqe_release *wcqe)
|
|
{
|
|
struct lpfc_queue *childwq;
|
|
bool wqid_matched = false;
|
|
uint16_t fcp_wqid;
|
|
|
|
/* Check for fast-path FCP work queue release */
|
|
fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
|
|
list_for_each_entry(childwq, &cq->child_list, list) {
|
|
if (childwq->queue_id == fcp_wqid) {
|
|
lpfc_sli4_wq_release(childwq,
|
|
bf_get(lpfc_wcqe_r_wqe_index, wcqe));
|
|
wqid_matched = true;
|
|
break;
|
|
}
|
|
}
|
|
/* Report warning log message if no match found */
|
|
if (wqid_matched != true)
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"2580 Fast-path wqe consume event carries "
|
|
"miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
|
|
* @cq: Pointer to the completion queue.
|
|
* @eqe: Pointer to fast-path completion queue entry.
|
|
*
|
|
* This routine process a fast-path work queue completion entry from fast-path
|
|
* event queue for FCP command response completion.
|
|
**/
|
|
static int
|
|
lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
|
|
struct lpfc_cqe *cqe)
|
|
{
|
|
struct lpfc_wcqe_release wcqe;
|
|
bool workposted = false;
|
|
|
|
/* Copy the work queue CQE and convert endian order if needed */
|
|
lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
|
|
|
|
/* Check and process for different type of WCQE and dispatch */
|
|
switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
|
|
case CQE_CODE_COMPL_WQE:
|
|
/* Process the WQ complete event */
|
|
lpfc_sli4_fp_handle_fcp_wcqe(phba,
|
|
(struct lpfc_wcqe_complete *)&wcqe);
|
|
break;
|
|
case CQE_CODE_RELEASE_WQE:
|
|
/* Process the WQ release event */
|
|
lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
|
|
(struct lpfc_wcqe_release *)&wcqe);
|
|
break;
|
|
case CQE_CODE_XRI_ABORTED:
|
|
/* Process the WQ XRI abort event */
|
|
workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
|
|
(struct sli4_wcqe_xri_aborted *)&wcqe);
|
|
break;
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0144 Not a valid WCQE code: x%x\n",
|
|
bf_get(lpfc_wcqe_c_code, &wcqe));
|
|
break;
|
|
}
|
|
return workposted;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
|
|
* @phba: Pointer to HBA context object.
|
|
* @eqe: Pointer to fast-path event queue entry.
|
|
*
|
|
* This routine process a event queue entry from the fast-path event queue.
|
|
* It will check the MajorCode and MinorCode to determine this is for a
|
|
* completion event on a completion queue, if not, an error shall be logged
|
|
* and just return. Otherwise, it will get to the corresponding completion
|
|
* queue and process all the entries on the completion queue, rearm the
|
|
* completion queue, and then return.
|
|
**/
|
|
static void
|
|
lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
|
|
uint32_t fcp_cqidx)
|
|
{
|
|
struct lpfc_queue *cq;
|
|
struct lpfc_cqe *cqe;
|
|
bool workposted = false;
|
|
uint16_t cqid;
|
|
int ecount = 0;
|
|
|
|
if (unlikely(bf_get(lpfc_eqe_major_code, eqe) != 0)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0366 Not a valid fast-path completion "
|
|
"event: majorcode=x%x, minorcode=x%x\n",
|
|
bf_get(lpfc_eqe_major_code, eqe),
|
|
bf_get(lpfc_eqe_minor_code, eqe));
|
|
return;
|
|
}
|
|
|
|
cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
|
|
if (unlikely(!cq)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0367 Fast-path completion queue does not "
|
|
"exist\n");
|
|
return;
|
|
}
|
|
|
|
/* Get the reference to the corresponding CQ */
|
|
cqid = bf_get(lpfc_eqe_resource_id, eqe);
|
|
if (unlikely(cqid != cq->queue_id)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0368 Miss-matched fast-path completion "
|
|
"queue identifier: eqcqid=%d, fcpcqid=%d\n",
|
|
cqid, cq->queue_id);
|
|
return;
|
|
}
|
|
|
|
/* Process all the entries to the CQ */
|
|
while ((cqe = lpfc_sli4_cq_get(cq))) {
|
|
workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
|
|
if (!(++ecount % LPFC_GET_QE_REL_INT))
|
|
lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
|
|
}
|
|
|
|
/* Catch the no cq entry condition */
|
|
if (unlikely(ecount == 0))
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0369 No entry from fast-path completion "
|
|
"queue fcpcqid=%d\n", cq->queue_id);
|
|
|
|
/* In any case, flash and re-arm the CQ */
|
|
lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
|
|
|
|
/* wake up worker thread if there are works to be done */
|
|
if (workposted)
|
|
lpfc_worker_wake_up(phba);
|
|
}
|
|
|
|
static void
|
|
lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
|
|
{
|
|
struct lpfc_eqe *eqe;
|
|
|
|
/* walk all the EQ entries and drop on the floor */
|
|
while ((eqe = lpfc_sli4_eq_get(eq)))
|
|
;
|
|
|
|
/* Clear and re-arm the EQ */
|
|
lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
|
|
* @irq: Interrupt number.
|
|
* @dev_id: The device context pointer.
|
|
*
|
|
* This function is directly called from the PCI layer as an interrupt
|
|
* service routine when device with SLI-4 interface spec is enabled with
|
|
* MSI-X multi-message interrupt mode and there are slow-path events in
|
|
* the HBA. However, when the device is enabled with either MSI or Pin-IRQ
|
|
* interrupt mode, this function is called as part of the device-level
|
|
* interrupt handler. When the PCI slot is in error recovery or the HBA is
|
|
* undergoing initialization, the interrupt handler will not process the
|
|
* interrupt. The link attention and ELS ring attention events are handled
|
|
* by the worker thread. The interrupt handler signals the worker thread
|
|
* and returns for these events. This function is called without any lock
|
|
* held. It gets the hbalock to access and update SLI data structures.
|
|
*
|
|
* This function returns IRQ_HANDLED when interrupt is handled else it
|
|
* returns IRQ_NONE.
|
|
**/
|
|
irqreturn_t
|
|
lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
|
|
{
|
|
struct lpfc_hba *phba;
|
|
struct lpfc_queue *speq;
|
|
struct lpfc_eqe *eqe;
|
|
unsigned long iflag;
|
|
int ecount = 0;
|
|
|
|
/*
|
|
* Get the driver's phba structure from the dev_id
|
|
*/
|
|
phba = (struct lpfc_hba *)dev_id;
|
|
|
|
if (unlikely(!phba))
|
|
return IRQ_NONE;
|
|
|
|
/* Get to the EQ struct associated with this vector */
|
|
speq = phba->sli4_hba.sp_eq;
|
|
|
|
/* Check device state for handling interrupt */
|
|
if (unlikely(lpfc_intr_state_check(phba))) {
|
|
/* Check again for link_state with lock held */
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
if (phba->link_state < LPFC_LINK_DOWN)
|
|
/* Flush, clear interrupt, and rearm the EQ */
|
|
lpfc_sli4_eq_flush(phba, speq);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
/*
|
|
* Process all the event on FCP slow-path EQ
|
|
*/
|
|
while ((eqe = lpfc_sli4_eq_get(speq))) {
|
|
lpfc_sli4_sp_handle_eqe(phba, eqe);
|
|
if (!(++ecount % LPFC_GET_QE_REL_INT))
|
|
lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
|
|
}
|
|
|
|
/* Always clear and re-arm the slow-path EQ */
|
|
lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
|
|
|
|
/* Catch the no cq entry condition */
|
|
if (unlikely(ecount == 0)) {
|
|
if (phba->intr_type == MSIX)
|
|
/* MSI-X treated interrupt served as no EQ share INT */
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"0357 MSI-X interrupt with no EQE\n");
|
|
else
|
|
/* Non MSI-X treated on interrupt as EQ share INT */
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
} /* lpfc_sli4_sp_intr_handler */
|
|
|
|
/**
|
|
* lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
|
|
* @irq: Interrupt number.
|
|
* @dev_id: The device context pointer.
|
|
*
|
|
* This function is directly called from the PCI layer as an interrupt
|
|
* service routine when device with SLI-4 interface spec is enabled with
|
|
* MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
|
|
* ring event in the HBA. However, when the device is enabled with either
|
|
* MSI or Pin-IRQ interrupt mode, this function is called as part of the
|
|
* device-level interrupt handler. When the PCI slot is in error recovery
|
|
* or the HBA is undergoing initialization, the interrupt handler will not
|
|
* process the interrupt. The SCSI FCP fast-path ring event are handled in
|
|
* the intrrupt context. This function is called without any lock held.
|
|
* It gets the hbalock to access and update SLI data structures. Note that,
|
|
* the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
|
|
* equal to that of FCP CQ index.
|
|
*
|
|
* This function returns IRQ_HANDLED when interrupt is handled else it
|
|
* returns IRQ_NONE.
|
|
**/
|
|
irqreturn_t
|
|
lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
|
|
{
|
|
struct lpfc_hba *phba;
|
|
struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
|
|
struct lpfc_queue *fpeq;
|
|
struct lpfc_eqe *eqe;
|
|
unsigned long iflag;
|
|
int ecount = 0;
|
|
uint32_t fcp_eqidx;
|
|
|
|
/* Get the driver's phba structure from the dev_id */
|
|
fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
|
|
phba = fcp_eq_hdl->phba;
|
|
fcp_eqidx = fcp_eq_hdl->idx;
|
|
|
|
if (unlikely(!phba))
|
|
return IRQ_NONE;
|
|
|
|
/* Get to the EQ struct associated with this vector */
|
|
fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
|
|
|
|
/* Check device state for handling interrupt */
|
|
if (unlikely(lpfc_intr_state_check(phba))) {
|
|
/* Check again for link_state with lock held */
|
|
spin_lock_irqsave(&phba->hbalock, iflag);
|
|
if (phba->link_state < LPFC_LINK_DOWN)
|
|
/* Flush, clear interrupt, and rearm the EQ */
|
|
lpfc_sli4_eq_flush(phba, fpeq);
|
|
spin_unlock_irqrestore(&phba->hbalock, iflag);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
/*
|
|
* Process all the event on FCP fast-path EQ
|
|
*/
|
|
while ((eqe = lpfc_sli4_eq_get(fpeq))) {
|
|
lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
|
|
if (!(++ecount % LPFC_GET_QE_REL_INT))
|
|
lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
|
|
}
|
|
|
|
/* Always clear and re-arm the fast-path EQ */
|
|
lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
|
|
|
|
if (unlikely(ecount == 0)) {
|
|
if (phba->intr_type == MSIX)
|
|
/* MSI-X treated interrupt served as no EQ share INT */
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"0358 MSI-X interrupt with no EQE\n");
|
|
else
|
|
/* Non MSI-X treated on interrupt as EQ share INT */
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
} /* lpfc_sli4_fp_intr_handler */
|
|
|
|
/**
|
|
* lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
|
|
* @irq: Interrupt number.
|
|
* @dev_id: The device context pointer.
|
|
*
|
|
* This function is the device-level interrupt handler to device with SLI-4
|
|
* interface spec, called from the PCI layer when either MSI or Pin-IRQ
|
|
* interrupt mode is enabled and there is an event in the HBA which requires
|
|
* driver attention. This function invokes the slow-path interrupt attention
|
|
* handling function and fast-path interrupt attention handling function in
|
|
* turn to process the relevant HBA attention events. This function is called
|
|
* without any lock held. It gets the hbalock to access and update SLI data
|
|
* structures.
|
|
*
|
|
* This function returns IRQ_HANDLED when interrupt is handled, else it
|
|
* returns IRQ_NONE.
|
|
**/
|
|
irqreturn_t
|
|
lpfc_sli4_intr_handler(int irq, void *dev_id)
|
|
{
|
|
struct lpfc_hba *phba;
|
|
irqreturn_t sp_irq_rc, fp_irq_rc;
|
|
bool fp_handled = false;
|
|
uint32_t fcp_eqidx;
|
|
|
|
/* Get the driver's phba structure from the dev_id */
|
|
phba = (struct lpfc_hba *)dev_id;
|
|
|
|
if (unlikely(!phba))
|
|
return IRQ_NONE;
|
|
|
|
/*
|
|
* Invokes slow-path host attention interrupt handling as appropriate.
|
|
*/
|
|
sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
|
|
|
|
/*
|
|
* Invoke fast-path host attention interrupt handling as appropriate.
|
|
*/
|
|
for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
|
|
fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
|
|
&phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
|
|
if (fp_irq_rc == IRQ_HANDLED)
|
|
fp_handled |= true;
|
|
}
|
|
|
|
return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
|
|
} /* lpfc_sli4_intr_handler */
|
|
|
|
/**
|
|
* lpfc_sli4_queue_free - free a queue structure and associated memory
|
|
* @queue: The queue structure to free.
|
|
*
|
|
* This function frees a queue structure and the DMAable memeory used for
|
|
* the host resident queue. This function must be called after destroying the
|
|
* queue on the HBA.
|
|
**/
|
|
void
|
|
lpfc_sli4_queue_free(struct lpfc_queue *queue)
|
|
{
|
|
struct lpfc_dmabuf *dmabuf;
|
|
|
|
if (!queue)
|
|
return;
|
|
|
|
while (!list_empty(&queue->page_list)) {
|
|
list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
|
|
list);
|
|
dma_free_coherent(&queue->phba->pcidev->dev, PAGE_SIZE,
|
|
dmabuf->virt, dmabuf->phys);
|
|
kfree(dmabuf);
|
|
}
|
|
kfree(queue);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
|
|
* @phba: The HBA that this queue is being created on.
|
|
* @entry_size: The size of each queue entry for this queue.
|
|
* @entry count: The number of entries that this queue will handle.
|
|
*
|
|
* This function allocates a queue structure and the DMAable memory used for
|
|
* the host resident queue. This function must be called before creating the
|
|
* queue on the HBA.
|
|
**/
|
|
struct lpfc_queue *
|
|
lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
|
|
uint32_t entry_count)
|
|
{
|
|
struct lpfc_queue *queue;
|
|
struct lpfc_dmabuf *dmabuf;
|
|
int x, total_qe_count;
|
|
void *dma_pointer;
|
|
|
|
|
|
queue = kzalloc(sizeof(struct lpfc_queue) +
|
|
(sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
|
|
if (!queue)
|
|
return NULL;
|
|
queue->page_count = (PAGE_ALIGN(entry_size * entry_count))/PAGE_SIZE;
|
|
INIT_LIST_HEAD(&queue->list);
|
|
INIT_LIST_HEAD(&queue->page_list);
|
|
INIT_LIST_HEAD(&queue->child_list);
|
|
for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
|
|
dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
if (!dmabuf)
|
|
goto out_fail;
|
|
dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
|
|
PAGE_SIZE, &dmabuf->phys,
|
|
GFP_KERNEL);
|
|
if (!dmabuf->virt) {
|
|
kfree(dmabuf);
|
|
goto out_fail;
|
|
}
|
|
memset(dmabuf->virt, 0, PAGE_SIZE);
|
|
dmabuf->buffer_tag = x;
|
|
list_add_tail(&dmabuf->list, &queue->page_list);
|
|
/* initialize queue's entry array */
|
|
dma_pointer = dmabuf->virt;
|
|
for (; total_qe_count < entry_count &&
|
|
dma_pointer < (PAGE_SIZE + dmabuf->virt);
|
|
total_qe_count++, dma_pointer += entry_size) {
|
|
queue->qe[total_qe_count].address = dma_pointer;
|
|
}
|
|
}
|
|
queue->entry_size = entry_size;
|
|
queue->entry_count = entry_count;
|
|
queue->phba = phba;
|
|
|
|
return queue;
|
|
out_fail:
|
|
lpfc_sli4_queue_free(queue);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* lpfc_eq_create - Create an Event Queue on the HBA
|
|
* @phba: HBA structure that indicates port to create a queue on.
|
|
* @eq: The queue structure to use to create the event queue.
|
|
* @imax: The maximum interrupt per second limit.
|
|
*
|
|
* This function creates an event queue, as detailed in @eq, on a port,
|
|
* described by @phba by sending an EQ_CREATE mailbox command to the HBA.
|
|
*
|
|
* The @phba struct is used to send mailbox command to HBA. The @eq struct
|
|
* is used to get the entry count and entry size that are necessary to
|
|
* determine the number of pages to allocate and use for this queue. This
|
|
* function will send the EQ_CREATE mailbox command to the HBA to setup the
|
|
* event queue. This function is asynchronous and will wait for the mailbox
|
|
* command to finish before continuing.
|
|
*
|
|
* On success this function will return a zero. If unable to allocate enough
|
|
* memory this function will return ENOMEM. If the queue create mailbox command
|
|
* fails this function will return ENXIO.
|
|
**/
|
|
uint32_t
|
|
lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
|
|
{
|
|
struct lpfc_mbx_eq_create *eq_create;
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc, length, status = 0;
|
|
struct lpfc_dmabuf *dmabuf;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
uint16_t dmult;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
length = (sizeof(struct lpfc_mbx_eq_create) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr));
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
|
|
LPFC_MBOX_OPCODE_EQ_CREATE,
|
|
length, LPFC_SLI4_MBX_EMBED);
|
|
eq_create = &mbox->u.mqe.un.eq_create;
|
|
bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
|
|
eq->page_count);
|
|
bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
|
|
LPFC_EQE_SIZE);
|
|
bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
|
|
/* Calculate delay multiper from maximum interrupt per second */
|
|
dmult = LPFC_DMULT_CONST/imax - 1;
|
|
bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
|
|
dmult);
|
|
switch (eq->entry_count) {
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0360 Unsupported EQ count. (%d)\n",
|
|
eq->entry_count);
|
|
if (eq->entry_count < 256)
|
|
return -EINVAL;
|
|
/* otherwise default to smallest count (drop through) */
|
|
case 256:
|
|
bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
|
|
LPFC_EQ_CNT_256);
|
|
break;
|
|
case 512:
|
|
bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
|
|
LPFC_EQ_CNT_512);
|
|
break;
|
|
case 1024:
|
|
bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
|
|
LPFC_EQ_CNT_1024);
|
|
break;
|
|
case 2048:
|
|
bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
|
|
LPFC_EQ_CNT_2048);
|
|
break;
|
|
case 4096:
|
|
bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
|
|
LPFC_EQ_CNT_4096);
|
|
break;
|
|
}
|
|
list_for_each_entry(dmabuf, &eq->page_list, list) {
|
|
eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
|
|
putPaddrLow(dmabuf->phys);
|
|
eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
|
|
putPaddrHigh(dmabuf->phys);
|
|
}
|
|
mbox->vport = phba->pport;
|
|
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
mbox->context1 = NULL;
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
|
|
shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2500 EQ_CREATE mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
status = -ENXIO;
|
|
}
|
|
eq->type = LPFC_EQ;
|
|
eq->subtype = LPFC_NONE;
|
|
eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
|
|
if (eq->queue_id == 0xFFFF)
|
|
status = -ENXIO;
|
|
eq->host_index = 0;
|
|
eq->hba_index = 0;
|
|
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cq_create - Create a Completion Queue on the HBA
|
|
* @phba: HBA structure that indicates port to create a queue on.
|
|
* @cq: The queue structure to use to create the completion queue.
|
|
* @eq: The event queue to bind this completion queue to.
|
|
*
|
|
* This function creates a completion queue, as detailed in @wq, on a port,
|
|
* described by @phba by sending a CQ_CREATE mailbox command to the HBA.
|
|
*
|
|
* The @phba struct is used to send mailbox command to HBA. The @cq struct
|
|
* is used to get the entry count and entry size that are necessary to
|
|
* determine the number of pages to allocate and use for this queue. The @eq
|
|
* is used to indicate which event queue to bind this completion queue to. This
|
|
* function will send the CQ_CREATE mailbox command to the HBA to setup the
|
|
* completion queue. This function is asynchronous and will wait for the mailbox
|
|
* command to finish before continuing.
|
|
*
|
|
* On success this function will return a zero. If unable to allocate enough
|
|
* memory this function will return ENOMEM. If the queue create mailbox command
|
|
* fails this function will return ENXIO.
|
|
**/
|
|
uint32_t
|
|
lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
|
|
struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
|
|
{
|
|
struct lpfc_mbx_cq_create *cq_create;
|
|
struct lpfc_dmabuf *dmabuf;
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc, length, status = 0;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
length = (sizeof(struct lpfc_mbx_cq_create) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr));
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
|
|
LPFC_MBOX_OPCODE_CQ_CREATE,
|
|
length, LPFC_SLI4_MBX_EMBED);
|
|
cq_create = &mbox->u.mqe.un.cq_create;
|
|
bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
|
|
cq->page_count);
|
|
bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
|
|
bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
|
|
bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id);
|
|
switch (cq->entry_count) {
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0361 Unsupported CQ count. (%d)\n",
|
|
cq->entry_count);
|
|
if (cq->entry_count < 256)
|
|
return -EINVAL;
|
|
/* otherwise default to smallest count (drop through) */
|
|
case 256:
|
|
bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
|
|
LPFC_CQ_CNT_256);
|
|
break;
|
|
case 512:
|
|
bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
|
|
LPFC_CQ_CNT_512);
|
|
break;
|
|
case 1024:
|
|
bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
|
|
LPFC_CQ_CNT_1024);
|
|
break;
|
|
}
|
|
list_for_each_entry(dmabuf, &cq->page_list, list) {
|
|
cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
|
|
putPaddrLow(dmabuf->phys);
|
|
cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
|
|
putPaddrHigh(dmabuf->phys);
|
|
}
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
|
|
|
|
/* The IOCTL status is embedded in the mailbox subheader. */
|
|
shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2501 CQ_CREATE mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
status = -ENXIO;
|
|
goto out;
|
|
}
|
|
cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
|
|
if (cq->queue_id == 0xFFFF) {
|
|
status = -ENXIO;
|
|
goto out;
|
|
}
|
|
/* link the cq onto the parent eq child list */
|
|
list_add_tail(&cq->list, &eq->child_list);
|
|
/* Set up completion queue's type and subtype */
|
|
cq->type = type;
|
|
cq->subtype = subtype;
|
|
cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
|
|
cq->host_index = 0;
|
|
cq->hba_index = 0;
|
|
|
|
out:
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* lpfc_mq_create - Create a mailbox Queue on the HBA
|
|
* @phba: HBA structure that indicates port to create a queue on.
|
|
* @mq: The queue structure to use to create the mailbox queue.
|
|
*
|
|
* This function creates a mailbox queue, as detailed in @mq, on a port,
|
|
* described by @phba by sending a MQ_CREATE mailbox command to the HBA.
|
|
*
|
|
* The @phba struct is used to send mailbox command to HBA. The @cq struct
|
|
* is used to get the entry count and entry size that are necessary to
|
|
* determine the number of pages to allocate and use for this queue. This
|
|
* function will send the MQ_CREATE mailbox command to the HBA to setup the
|
|
* mailbox queue. This function is asynchronous and will wait for the mailbox
|
|
* command to finish before continuing.
|
|
*
|
|
* On success this function will return a zero. If unable to allocate enough
|
|
* memory this function will return ENOMEM. If the queue create mailbox command
|
|
* fails this function will return ENXIO.
|
|
**/
|
|
uint32_t
|
|
lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
|
|
struct lpfc_queue *cq, uint32_t subtype)
|
|
{
|
|
struct lpfc_mbx_mq_create *mq_create;
|
|
struct lpfc_dmabuf *dmabuf;
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc, length, status = 0;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
length = (sizeof(struct lpfc_mbx_mq_create) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr));
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
|
|
LPFC_MBOX_OPCODE_MQ_CREATE,
|
|
length, LPFC_SLI4_MBX_EMBED);
|
|
mq_create = &mbox->u.mqe.un.mq_create;
|
|
bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
|
|
mq->page_count);
|
|
bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
|
|
cq->queue_id);
|
|
bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
|
|
switch (mq->entry_count) {
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0362 Unsupported MQ count. (%d)\n",
|
|
mq->entry_count);
|
|
if (mq->entry_count < 16)
|
|
return -EINVAL;
|
|
/* otherwise default to smallest count (drop through) */
|
|
case 16:
|
|
bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
|
|
LPFC_MQ_CNT_16);
|
|
break;
|
|
case 32:
|
|
bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
|
|
LPFC_MQ_CNT_32);
|
|
break;
|
|
case 64:
|
|
bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
|
|
LPFC_MQ_CNT_64);
|
|
break;
|
|
case 128:
|
|
bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
|
|
LPFC_MQ_CNT_128);
|
|
break;
|
|
}
|
|
list_for_each_entry(dmabuf, &mq->page_list, list) {
|
|
mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
|
|
putPaddrLow(dmabuf->phys);
|
|
mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
|
|
putPaddrHigh(dmabuf->phys);
|
|
}
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
|
|
/* The IOCTL status is embedded in the mailbox subheader. */
|
|
shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2502 MQ_CREATE mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
status = -ENXIO;
|
|
goto out;
|
|
}
|
|
mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, &mq_create->u.response);
|
|
if (mq->queue_id == 0xFFFF) {
|
|
status = -ENXIO;
|
|
goto out;
|
|
}
|
|
mq->type = LPFC_MQ;
|
|
mq->subtype = subtype;
|
|
mq->host_index = 0;
|
|
mq->hba_index = 0;
|
|
|
|
/* link the mq onto the parent cq child list */
|
|
list_add_tail(&mq->list, &cq->child_list);
|
|
out:
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* lpfc_wq_create - Create a Work Queue on the HBA
|
|
* @phba: HBA structure that indicates port to create a queue on.
|
|
* @wq: The queue structure to use to create the work queue.
|
|
* @cq: The completion queue to bind this work queue to.
|
|
* @subtype: The subtype of the work queue indicating its functionality.
|
|
*
|
|
* This function creates a work queue, as detailed in @wq, on a port, described
|
|
* by @phba by sending a WQ_CREATE mailbox command to the HBA.
|
|
*
|
|
* The @phba struct is used to send mailbox command to HBA. The @wq struct
|
|
* is used to get the entry count and entry size that are necessary to
|
|
* determine the number of pages to allocate and use for this queue. The @cq
|
|
* is used to indicate which completion queue to bind this work queue to. This
|
|
* function will send the WQ_CREATE mailbox command to the HBA to setup the
|
|
* work queue. This function is asynchronous and will wait for the mailbox
|
|
* command to finish before continuing.
|
|
*
|
|
* On success this function will return a zero. If unable to allocate enough
|
|
* memory this function will return ENOMEM. If the queue create mailbox command
|
|
* fails this function will return ENXIO.
|
|
**/
|
|
uint32_t
|
|
lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
|
|
struct lpfc_queue *cq, uint32_t subtype)
|
|
{
|
|
struct lpfc_mbx_wq_create *wq_create;
|
|
struct lpfc_dmabuf *dmabuf;
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc, length, status = 0;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
length = (sizeof(struct lpfc_mbx_wq_create) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr));
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
|
|
length, LPFC_SLI4_MBX_EMBED);
|
|
wq_create = &mbox->u.mqe.un.wq_create;
|
|
bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
|
|
wq->page_count);
|
|
bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
|
|
cq->queue_id);
|
|
list_for_each_entry(dmabuf, &wq->page_list, list) {
|
|
wq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
|
|
putPaddrLow(dmabuf->phys);
|
|
wq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
|
|
putPaddrHigh(dmabuf->phys);
|
|
}
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
|
|
/* The IOCTL status is embedded in the mailbox subheader. */
|
|
shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2503 WQ_CREATE mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
status = -ENXIO;
|
|
goto out;
|
|
}
|
|
wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
|
|
if (wq->queue_id == 0xFFFF) {
|
|
status = -ENXIO;
|
|
goto out;
|
|
}
|
|
wq->type = LPFC_WQ;
|
|
wq->subtype = subtype;
|
|
wq->host_index = 0;
|
|
wq->hba_index = 0;
|
|
|
|
/* link the wq onto the parent cq child list */
|
|
list_add_tail(&wq->list, &cq->child_list);
|
|
out:
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* lpfc_rq_create - Create a Receive Queue on the HBA
|
|
* @phba: HBA structure that indicates port to create a queue on.
|
|
* @hrq: The queue structure to use to create the header receive queue.
|
|
* @drq: The queue structure to use to create the data receive queue.
|
|
* @cq: The completion queue to bind this work queue to.
|
|
*
|
|
* This function creates a receive buffer queue pair , as detailed in @hrq and
|
|
* @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
|
|
* to the HBA.
|
|
*
|
|
* The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
|
|
* struct is used to get the entry count that is necessary to determine the
|
|
* number of pages to use for this queue. The @cq is used to indicate which
|
|
* completion queue to bind received buffers that are posted to these queues to.
|
|
* This function will send the RQ_CREATE mailbox command to the HBA to setup the
|
|
* receive queue pair. This function is asynchronous and will wait for the
|
|
* mailbox command to finish before continuing.
|
|
*
|
|
* On success this function will return a zero. If unable to allocate enough
|
|
* memory this function will return ENOMEM. If the queue create mailbox command
|
|
* fails this function will return ENXIO.
|
|
**/
|
|
uint32_t
|
|
lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
|
|
struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
|
|
{
|
|
struct lpfc_mbx_rq_create *rq_create;
|
|
struct lpfc_dmabuf *dmabuf;
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc, length, status = 0;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
if (hrq->entry_count != drq->entry_count)
|
|
return -EINVAL;
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
length = (sizeof(struct lpfc_mbx_rq_create) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr));
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
|
|
length, LPFC_SLI4_MBX_EMBED);
|
|
rq_create = &mbox->u.mqe.un.rq_create;
|
|
switch (hrq->entry_count) {
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2535 Unsupported RQ count. (%d)\n",
|
|
hrq->entry_count);
|
|
if (hrq->entry_count < 512)
|
|
return -EINVAL;
|
|
/* otherwise default to smallest count (drop through) */
|
|
case 512:
|
|
bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
|
|
LPFC_RQ_RING_SIZE_512);
|
|
break;
|
|
case 1024:
|
|
bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
|
|
LPFC_RQ_RING_SIZE_1024);
|
|
break;
|
|
case 2048:
|
|
bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
|
|
LPFC_RQ_RING_SIZE_2048);
|
|
break;
|
|
case 4096:
|
|
bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
|
|
LPFC_RQ_RING_SIZE_4096);
|
|
break;
|
|
}
|
|
bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
|
|
cq->queue_id);
|
|
bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
|
|
hrq->page_count);
|
|
bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
|
|
LPFC_HDR_BUF_SIZE);
|
|
list_for_each_entry(dmabuf, &hrq->page_list, list) {
|
|
rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
|
|
putPaddrLow(dmabuf->phys);
|
|
rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
|
|
putPaddrHigh(dmabuf->phys);
|
|
}
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
|
|
/* The IOCTL status is embedded in the mailbox subheader. */
|
|
shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2504 RQ_CREATE mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
status = -ENXIO;
|
|
goto out;
|
|
}
|
|
hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
|
|
if (hrq->queue_id == 0xFFFF) {
|
|
status = -ENXIO;
|
|
goto out;
|
|
}
|
|
hrq->type = LPFC_HRQ;
|
|
hrq->subtype = subtype;
|
|
hrq->host_index = 0;
|
|
hrq->hba_index = 0;
|
|
|
|
/* now create the data queue */
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
|
|
length, LPFC_SLI4_MBX_EMBED);
|
|
switch (drq->entry_count) {
|
|
default:
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2536 Unsupported RQ count. (%d)\n",
|
|
drq->entry_count);
|
|
if (drq->entry_count < 512)
|
|
return -EINVAL;
|
|
/* otherwise default to smallest count (drop through) */
|
|
case 512:
|
|
bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
|
|
LPFC_RQ_RING_SIZE_512);
|
|
break;
|
|
case 1024:
|
|
bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
|
|
LPFC_RQ_RING_SIZE_1024);
|
|
break;
|
|
case 2048:
|
|
bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
|
|
LPFC_RQ_RING_SIZE_2048);
|
|
break;
|
|
case 4096:
|
|
bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
|
|
LPFC_RQ_RING_SIZE_4096);
|
|
break;
|
|
}
|
|
bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
|
|
cq->queue_id);
|
|
bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
|
|
drq->page_count);
|
|
bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
|
|
LPFC_DATA_BUF_SIZE);
|
|
list_for_each_entry(dmabuf, &drq->page_list, list) {
|
|
rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
|
|
putPaddrLow(dmabuf->phys);
|
|
rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
|
|
putPaddrHigh(dmabuf->phys);
|
|
}
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
|
|
/* The IOCTL status is embedded in the mailbox subheader. */
|
|
shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
status = -ENXIO;
|
|
goto out;
|
|
}
|
|
drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
|
|
if (drq->queue_id == 0xFFFF) {
|
|
status = -ENXIO;
|
|
goto out;
|
|
}
|
|
drq->type = LPFC_DRQ;
|
|
drq->subtype = subtype;
|
|
drq->host_index = 0;
|
|
drq->hba_index = 0;
|
|
|
|
/* link the header and data RQs onto the parent cq child list */
|
|
list_add_tail(&hrq->list, &cq->child_list);
|
|
list_add_tail(&drq->list, &cq->child_list);
|
|
|
|
out:
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* lpfc_eq_destroy - Destroy an event Queue on the HBA
|
|
* @eq: The queue structure associated with the queue to destroy.
|
|
*
|
|
* This function destroys a queue, as detailed in @eq by sending an mailbox
|
|
* command, specific to the type of queue, to the HBA.
|
|
*
|
|
* The @eq struct is used to get the queue ID of the queue to destroy.
|
|
*
|
|
* On success this function will return a zero. If the queue destroy mailbox
|
|
* command fails this function will return ENXIO.
|
|
**/
|
|
uint32_t
|
|
lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
|
|
{
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc, length, status = 0;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
if (!eq)
|
|
return -ENODEV;
|
|
mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
length = (sizeof(struct lpfc_mbx_eq_destroy) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr));
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
|
|
LPFC_MBOX_OPCODE_EQ_DESTROY,
|
|
length, LPFC_SLI4_MBX_EMBED);
|
|
bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
|
|
eq->queue_id);
|
|
mbox->vport = eq->phba->pport;
|
|
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
|
|
rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
|
|
/* The IOCTL status is embedded in the mailbox subheader. */
|
|
shdr = (union lpfc_sli4_cfg_shdr *)
|
|
&mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2505 EQ_DESTROY mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
status = -ENXIO;
|
|
}
|
|
|
|
/* Remove eq from any list */
|
|
list_del_init(&eq->list);
|
|
mempool_free(mbox, eq->phba->mbox_mem_pool);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cq_destroy - Destroy a Completion Queue on the HBA
|
|
* @cq: The queue structure associated with the queue to destroy.
|
|
*
|
|
* This function destroys a queue, as detailed in @cq by sending an mailbox
|
|
* command, specific to the type of queue, to the HBA.
|
|
*
|
|
* The @cq struct is used to get the queue ID of the queue to destroy.
|
|
*
|
|
* On success this function will return a zero. If the queue destroy mailbox
|
|
* command fails this function will return ENXIO.
|
|
**/
|
|
uint32_t
|
|
lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
|
|
{
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc, length, status = 0;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
if (!cq)
|
|
return -ENODEV;
|
|
mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
length = (sizeof(struct lpfc_mbx_cq_destroy) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr));
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
|
|
LPFC_MBOX_OPCODE_CQ_DESTROY,
|
|
length, LPFC_SLI4_MBX_EMBED);
|
|
bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
|
|
cq->queue_id);
|
|
mbox->vport = cq->phba->pport;
|
|
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
|
|
/* The IOCTL status is embedded in the mailbox subheader. */
|
|
shdr = (union lpfc_sli4_cfg_shdr *)
|
|
&mbox->u.mqe.un.wq_create.header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2506 CQ_DESTROY mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
status = -ENXIO;
|
|
}
|
|
/* Remove cq from any list */
|
|
list_del_init(&cq->list);
|
|
mempool_free(mbox, cq->phba->mbox_mem_pool);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
|
|
* @qm: The queue structure associated with the queue to destroy.
|
|
*
|
|
* This function destroys a queue, as detailed in @mq by sending an mailbox
|
|
* command, specific to the type of queue, to the HBA.
|
|
*
|
|
* The @mq struct is used to get the queue ID of the queue to destroy.
|
|
*
|
|
* On success this function will return a zero. If the queue destroy mailbox
|
|
* command fails this function will return ENXIO.
|
|
**/
|
|
uint32_t
|
|
lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
|
|
{
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc, length, status = 0;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
if (!mq)
|
|
return -ENODEV;
|
|
mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
length = (sizeof(struct lpfc_mbx_mq_destroy) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr));
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
|
|
LPFC_MBOX_OPCODE_MQ_DESTROY,
|
|
length, LPFC_SLI4_MBX_EMBED);
|
|
bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
|
|
mq->queue_id);
|
|
mbox->vport = mq->phba->pport;
|
|
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
|
|
/* The IOCTL status is embedded in the mailbox subheader. */
|
|
shdr = (union lpfc_sli4_cfg_shdr *)
|
|
&mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2507 MQ_DESTROY mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
status = -ENXIO;
|
|
}
|
|
/* Remove mq from any list */
|
|
list_del_init(&mq->list);
|
|
mempool_free(mbox, mq->phba->mbox_mem_pool);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* lpfc_wq_destroy - Destroy a Work Queue on the HBA
|
|
* @wq: The queue structure associated with the queue to destroy.
|
|
*
|
|
* This function destroys a queue, as detailed in @wq by sending an mailbox
|
|
* command, specific to the type of queue, to the HBA.
|
|
*
|
|
* The @wq struct is used to get the queue ID of the queue to destroy.
|
|
*
|
|
* On success this function will return a zero. If the queue destroy mailbox
|
|
* command fails this function will return ENXIO.
|
|
**/
|
|
uint32_t
|
|
lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
|
|
{
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc, length, status = 0;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
if (!wq)
|
|
return -ENODEV;
|
|
mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
length = (sizeof(struct lpfc_mbx_wq_destroy) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr));
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
|
|
length, LPFC_SLI4_MBX_EMBED);
|
|
bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
|
|
wq->queue_id);
|
|
mbox->vport = wq->phba->pport;
|
|
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
|
|
shdr = (union lpfc_sli4_cfg_shdr *)
|
|
&mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2508 WQ_DESTROY mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
status = -ENXIO;
|
|
}
|
|
/* Remove wq from any list */
|
|
list_del_init(&wq->list);
|
|
mempool_free(mbox, wq->phba->mbox_mem_pool);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* lpfc_rq_destroy - Destroy a Receive Queue on the HBA
|
|
* @rq: The queue structure associated with the queue to destroy.
|
|
*
|
|
* This function destroys a queue, as detailed in @rq by sending an mailbox
|
|
* command, specific to the type of queue, to the HBA.
|
|
*
|
|
* The @rq struct is used to get the queue ID of the queue to destroy.
|
|
*
|
|
* On success this function will return a zero. If the queue destroy mailbox
|
|
* command fails this function will return ENXIO.
|
|
**/
|
|
uint32_t
|
|
lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
|
|
struct lpfc_queue *drq)
|
|
{
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc, length, status = 0;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
if (!hrq || !drq)
|
|
return -ENODEV;
|
|
mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
length = (sizeof(struct lpfc_mbx_rq_destroy) -
|
|
sizeof(struct mbox_header));
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
|
|
length, LPFC_SLI4_MBX_EMBED);
|
|
bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
|
|
hrq->queue_id);
|
|
mbox->vport = hrq->phba->pport;
|
|
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
|
|
/* The IOCTL status is embedded in the mailbox subheader. */
|
|
shdr = (union lpfc_sli4_cfg_shdr *)
|
|
&mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2509 RQ_DESTROY mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
if (rc != MBX_TIMEOUT)
|
|
mempool_free(mbox, hrq->phba->mbox_mem_pool);
|
|
return -ENXIO;
|
|
}
|
|
bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
|
|
drq->queue_id);
|
|
rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
|
|
shdr = (union lpfc_sli4_cfg_shdr *)
|
|
&mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2510 RQ_DESTROY mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
status = -ENXIO;
|
|
}
|
|
list_del_init(&hrq->list);
|
|
list_del_init(&drq->list);
|
|
mempool_free(mbox, hrq->phba->mbox_mem_pool);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
|
|
* @phba: The virtual port for which this call being executed.
|
|
* @pdma_phys_addr0: Physical address of the 1st SGL page.
|
|
* @pdma_phys_addr1: Physical address of the 2nd SGL page.
|
|
* @xritag: the xritag that ties this io to the SGL pages.
|
|
*
|
|
* This routine will post the sgl pages for the IO that has the xritag
|
|
* that is in the iocbq structure. The xritag is assigned during iocbq
|
|
* creation and persists for as long as the driver is loaded.
|
|
* if the caller has fewer than 256 scatter gather segments to map then
|
|
* pdma_phys_addr1 should be 0.
|
|
* If the caller needs to map more than 256 scatter gather segment then
|
|
* pdma_phys_addr1 should be a valid physical address.
|
|
* physical address for SGLs must be 64 byte aligned.
|
|
* If you are going to map 2 SGL's then the first one must have 256 entries
|
|
* the second sgl can have between 1 and 256 entries.
|
|
*
|
|
* Return codes:
|
|
* 0 - Success
|
|
* -ENXIO, -ENOMEM - Failure
|
|
**/
|
|
int
|
|
lpfc_sli4_post_sgl(struct lpfc_hba *phba,
|
|
dma_addr_t pdma_phys_addr0,
|
|
dma_addr_t pdma_phys_addr1,
|
|
uint16_t xritag)
|
|
{
|
|
struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
if (xritag == NO_XRI) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"0364 Invalid param:\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
|
|
sizeof(struct lpfc_mbx_post_sgl_pages) -
|
|
sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
|
|
|
|
post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
|
|
&mbox->u.mqe.un.post_sgl_pages;
|
|
bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
|
|
bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
|
|
|
|
post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
|
|
cpu_to_le32(putPaddrLow(pdma_phys_addr0));
|
|
post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
|
|
cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
|
|
|
|
post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
|
|
cpu_to_le32(putPaddrLow(pdma_phys_addr1));
|
|
post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
|
|
cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
|
|
if (!phba->sli4_hba.intr_enable)
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
|
|
else
|
|
rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
|
|
/* The IOCTL status is embedded in the mailbox subheader. */
|
|
shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (rc != MBX_TIMEOUT)
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2511 POST_SGL mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
rc = -ENXIO;
|
|
}
|
|
return 0;
|
|
}
|
|
/**
|
|
* lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA
|
|
* @phba: The virtual port for which this call being executed.
|
|
*
|
|
* This routine will remove all of the sgl pages registered with the hba.
|
|
*
|
|
* Return codes:
|
|
* 0 - Success
|
|
* -ENXIO, -ENOMEM - Failure
|
|
**/
|
|
int
|
|
lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *phba)
|
|
{
|
|
LPFC_MBOXQ_t *mbox;
|
|
int rc;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return -ENOMEM;
|
|
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES, 0,
|
|
LPFC_SLI4_MBX_EMBED);
|
|
if (!phba->sli4_hba.intr_enable)
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
|
|
else
|
|
rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
|
|
/* The IOCTL status is embedded in the mailbox subheader. */
|
|
shdr = (union lpfc_sli4_cfg_shdr *)
|
|
&mbox->u.mqe.un.sli4_config.header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (rc != MBX_TIMEOUT)
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2512 REMOVE_ALL_SGL_PAGES mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
rc = -ENXIO;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_next_xritag - Get an xritag for the io
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function gets an xritag for the iocb. If there is no unused xritag
|
|
* it will return 0xffff.
|
|
* The function returns the allocated xritag if successful, else returns zero.
|
|
* Zero is not a valid xritag.
|
|
* The caller is not required to hold any lock.
|
|
**/
|
|
uint16_t
|
|
lpfc_sli4_next_xritag(struct lpfc_hba *phba)
|
|
{
|
|
uint16_t xritag;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
xritag = phba->sli4_hba.next_xri;
|
|
if ((xritag != (uint16_t) -1) && xritag <
|
|
(phba->sli4_hba.max_cfg_param.max_xri
|
|
+ phba->sli4_hba.max_cfg_param.xri_base)) {
|
|
phba->sli4_hba.next_xri++;
|
|
phba->sli4_hba.max_cfg_param.xri_used++;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return xritag;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"2004 Failed to allocate XRI.last XRITAG is %d"
|
|
" Max XRI is %d, Used XRI is %d\n",
|
|
phba->sli4_hba.next_xri,
|
|
phba->sli4_hba.max_cfg_param.max_xri,
|
|
phba->sli4_hba.max_cfg_param.xri_used);
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is invoked to post a block of driver's sgl pages to the
|
|
* HBA using non-embedded mailbox command. No Lock is held. This routine
|
|
* is only called when the driver is loading and after all IO has been
|
|
* stopped.
|
|
**/
|
|
int
|
|
lpfc_sli4_post_sgl_list(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_sglq *sglq_entry;
|
|
struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
|
|
struct sgl_page_pairs *sgl_pg_pairs;
|
|
void *viraddr;
|
|
LPFC_MBOXQ_t *mbox;
|
|
uint32_t reqlen, alloclen, pg_pairs;
|
|
uint32_t mbox_tmo;
|
|
uint16_t xritag_start = 0;
|
|
int els_xri_cnt, rc = 0;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
/* The number of sgls to be posted */
|
|
els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
|
|
|
|
reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
|
|
sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
|
|
if (reqlen > PAGE_SIZE) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
|
|
"2559 Block sgl registration required DMA "
|
|
"size (%d) great than a page\n", reqlen);
|
|
return -ENOMEM;
|
|
}
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2560 Failed to allocate mbox cmd memory\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* Allocate DMA memory and set up the non-embedded mailbox command */
|
|
alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
|
|
LPFC_SLI4_MBX_NEMBED);
|
|
|
|
if (alloclen < reqlen) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0285 Allocated DMA memory size (%d) is "
|
|
"less than the requested DMA memory "
|
|
"size (%d)\n", alloclen, reqlen);
|
|
lpfc_sli4_mbox_cmd_free(phba, mbox);
|
|
return -ENOMEM;
|
|
}
|
|
/* Get the first SGE entry from the non-embedded DMA memory */
|
|
viraddr = mbox->sge_array->addr[0];
|
|
|
|
/* Set up the SGL pages in the non-embedded DMA pages */
|
|
sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
|
|
sgl_pg_pairs = &sgl->sgl_pg_pairs;
|
|
|
|
for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) {
|
|
sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs];
|
|
/* Set up the sge entry */
|
|
sgl_pg_pairs->sgl_pg0_addr_lo =
|
|
cpu_to_le32(putPaddrLow(sglq_entry->phys));
|
|
sgl_pg_pairs->sgl_pg0_addr_hi =
|
|
cpu_to_le32(putPaddrHigh(sglq_entry->phys));
|
|
sgl_pg_pairs->sgl_pg1_addr_lo =
|
|
cpu_to_le32(putPaddrLow(0));
|
|
sgl_pg_pairs->sgl_pg1_addr_hi =
|
|
cpu_to_le32(putPaddrHigh(0));
|
|
/* Keep the first xritag on the list */
|
|
if (pg_pairs == 0)
|
|
xritag_start = sglq_entry->sli4_xritag;
|
|
sgl_pg_pairs++;
|
|
}
|
|
bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
|
|
bf_set(lpfc_post_sgl_pages_xricnt, sgl, els_xri_cnt);
|
|
/* Perform endian conversion if necessary */
|
|
sgl->word0 = cpu_to_le32(sgl->word0);
|
|
|
|
if (!phba->sli4_hba.intr_enable)
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
|
|
else {
|
|
mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
|
|
rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
|
|
}
|
|
shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (rc != MBX_TIMEOUT)
|
|
lpfc_sli4_mbox_cmd_free(phba, mbox);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2513 POST_SGL_BLOCK mailbox command failed "
|
|
"status x%x add_status x%x mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
rc = -ENXIO;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @sblist: pointer to scsi buffer list.
|
|
* @count: number of scsi buffers on the list.
|
|
*
|
|
* This routine is invoked to post a block of @count scsi sgl pages from a
|
|
* SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
|
|
* No Lock is held.
|
|
*
|
|
**/
|
|
int
|
|
lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist,
|
|
int cnt)
|
|
{
|
|
struct lpfc_scsi_buf *psb;
|
|
struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
|
|
struct sgl_page_pairs *sgl_pg_pairs;
|
|
void *viraddr;
|
|
LPFC_MBOXQ_t *mbox;
|
|
uint32_t reqlen, alloclen, pg_pairs;
|
|
uint32_t mbox_tmo;
|
|
uint16_t xritag_start = 0;
|
|
int rc = 0;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
dma_addr_t pdma_phys_bpl1;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
/* Calculate the requested length of the dma memory */
|
|
reqlen = cnt * sizeof(struct sgl_page_pairs) +
|
|
sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
|
|
if (reqlen > PAGE_SIZE) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
|
|
"0217 Block sgl registration required DMA "
|
|
"size (%d) great than a page\n", reqlen);
|
|
return -ENOMEM;
|
|
}
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0283 Failed to allocate mbox cmd memory\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* Allocate DMA memory and set up the non-embedded mailbox command */
|
|
alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
|
|
LPFC_SLI4_MBX_NEMBED);
|
|
|
|
if (alloclen < reqlen) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2561 Allocated DMA memory size (%d) is "
|
|
"less than the requested DMA memory "
|
|
"size (%d)\n", alloclen, reqlen);
|
|
lpfc_sli4_mbox_cmd_free(phba, mbox);
|
|
return -ENOMEM;
|
|
}
|
|
/* Get the first SGE entry from the non-embedded DMA memory */
|
|
viraddr = mbox->sge_array->addr[0];
|
|
|
|
/* Set up the SGL pages in the non-embedded DMA pages */
|
|
sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
|
|
sgl_pg_pairs = &sgl->sgl_pg_pairs;
|
|
|
|
pg_pairs = 0;
|
|
list_for_each_entry(psb, sblist, list) {
|
|
/* Set up the sge entry */
|
|
sgl_pg_pairs->sgl_pg0_addr_lo =
|
|
cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
|
|
sgl_pg_pairs->sgl_pg0_addr_hi =
|
|
cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
|
|
if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
|
|
pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
|
|
else
|
|
pdma_phys_bpl1 = 0;
|
|
sgl_pg_pairs->sgl_pg1_addr_lo =
|
|
cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
|
|
sgl_pg_pairs->sgl_pg1_addr_hi =
|
|
cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
|
|
/* Keep the first xritag on the list */
|
|
if (pg_pairs == 0)
|
|
xritag_start = psb->cur_iocbq.sli4_xritag;
|
|
sgl_pg_pairs++;
|
|
pg_pairs++;
|
|
}
|
|
bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
|
|
bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
|
|
/* Perform endian conversion if necessary */
|
|
sgl->word0 = cpu_to_le32(sgl->word0);
|
|
|
|
if (!phba->sli4_hba.intr_enable)
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
|
|
else {
|
|
mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
|
|
rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
|
|
}
|
|
shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (rc != MBX_TIMEOUT)
|
|
lpfc_sli4_mbox_cmd_free(phba, mbox);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2564 POST_SGL_BLOCK mailbox command failed "
|
|
"status x%x add_status x%x mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
rc = -ENXIO;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_fc_frame_check - Check that this frame is a valid frame to handle
|
|
* @phba: pointer to lpfc_hba struct that the frame was received on
|
|
* @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
|
|
*
|
|
* This function checks the fields in the @fc_hdr to see if the FC frame is a
|
|
* valid type of frame that the LPFC driver will handle. This function will
|
|
* return a zero if the frame is a valid frame or a non zero value when the
|
|
* frame does not pass the check.
|
|
**/
|
|
static int
|
|
lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
|
|
{
|
|
char *rctl_names[] = FC_RCTL_NAMES_INIT;
|
|
char *type_names[] = FC_TYPE_NAMES_INIT;
|
|
struct fc_vft_header *fc_vft_hdr;
|
|
|
|
switch (fc_hdr->fh_r_ctl) {
|
|
case FC_RCTL_DD_UNCAT: /* uncategorized information */
|
|
case FC_RCTL_DD_SOL_DATA: /* solicited data */
|
|
case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
|
|
case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
|
|
case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
|
|
case FC_RCTL_DD_DATA_DESC: /* data descriptor */
|
|
case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
|
|
case FC_RCTL_DD_CMD_STATUS: /* command status */
|
|
case FC_RCTL_ELS_REQ: /* extended link services request */
|
|
case FC_RCTL_ELS_REP: /* extended link services reply */
|
|
case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
|
|
case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
|
|
case FC_RCTL_BA_NOP: /* basic link service NOP */
|
|
case FC_RCTL_BA_ABTS: /* basic link service abort */
|
|
case FC_RCTL_BA_RMC: /* remove connection */
|
|
case FC_RCTL_BA_ACC: /* basic accept */
|
|
case FC_RCTL_BA_RJT: /* basic reject */
|
|
case FC_RCTL_BA_PRMT:
|
|
case FC_RCTL_ACK_1: /* acknowledge_1 */
|
|
case FC_RCTL_ACK_0: /* acknowledge_0 */
|
|
case FC_RCTL_P_RJT: /* port reject */
|
|
case FC_RCTL_F_RJT: /* fabric reject */
|
|
case FC_RCTL_P_BSY: /* port busy */
|
|
case FC_RCTL_F_BSY: /* fabric busy to data frame */
|
|
case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
|
|
case FC_RCTL_LCR: /* link credit reset */
|
|
case FC_RCTL_END: /* end */
|
|
break;
|
|
case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
|
|
fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
|
|
fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
|
|
return lpfc_fc_frame_check(phba, fc_hdr);
|
|
default:
|
|
goto drop;
|
|
}
|
|
switch (fc_hdr->fh_type) {
|
|
case FC_TYPE_BLS:
|
|
case FC_TYPE_ELS:
|
|
case FC_TYPE_FCP:
|
|
case FC_TYPE_CT:
|
|
break;
|
|
case FC_TYPE_IP:
|
|
case FC_TYPE_ILS:
|
|
default:
|
|
goto drop;
|
|
}
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
|
|
"2538 Received frame rctl:%s type:%s\n",
|
|
rctl_names[fc_hdr->fh_r_ctl],
|
|
type_names[fc_hdr->fh_type]);
|
|
return 0;
|
|
drop:
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
|
|
"2539 Dropped frame rctl:%s type:%s\n",
|
|
rctl_names[fc_hdr->fh_r_ctl],
|
|
type_names[fc_hdr->fh_type]);
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
|
|
* @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
|
|
*
|
|
* This function processes the FC header to retrieve the VFI from the VF
|
|
* header, if one exists. This function will return the VFI if one exists
|
|
* or 0 if no VSAN Header exists.
|
|
**/
|
|
static uint32_t
|
|
lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
|
|
{
|
|
struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
|
|
|
|
if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
|
|
return 0;
|
|
return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
|
|
}
|
|
|
|
/**
|
|
* lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
|
|
* @phba: Pointer to the HBA structure to search for the vport on
|
|
* @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
|
|
* @fcfi: The FC Fabric ID that the frame came from
|
|
*
|
|
* This function searches the @phba for a vport that matches the content of the
|
|
* @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
|
|
* VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
|
|
* returns the matching vport pointer or NULL if unable to match frame to a
|
|
* vport.
|
|
**/
|
|
static struct lpfc_vport *
|
|
lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
|
|
uint16_t fcfi)
|
|
{
|
|
struct lpfc_vport **vports;
|
|
struct lpfc_vport *vport = NULL;
|
|
int i;
|
|
uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
|
|
fc_hdr->fh_d_id[1] << 8 |
|
|
fc_hdr->fh_d_id[2]);
|
|
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports != NULL)
|
|
for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
|
|
if (phba->fcf.fcfi == fcfi &&
|
|
vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
|
|
vports[i]->fc_myDID == did) {
|
|
vport = vports[i];
|
|
break;
|
|
}
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
return vport;
|
|
}
|
|
|
|
/**
|
|
* lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
|
|
* @vport: The vport to work on.
|
|
*
|
|
* This function updates the receive sequence time stamp for this vport. The
|
|
* receive sequence time stamp indicates the time that the last frame of the
|
|
* the sequence that has been idle for the longest amount of time was received.
|
|
* the driver uses this time stamp to indicate if any received sequences have
|
|
* timed out.
|
|
**/
|
|
void
|
|
lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_dmabuf *h_buf;
|
|
struct hbq_dmabuf *dmabuf = NULL;
|
|
|
|
/* get the oldest sequence on the rcv list */
|
|
h_buf = list_get_first(&vport->rcv_buffer_list,
|
|
struct lpfc_dmabuf, list);
|
|
if (!h_buf)
|
|
return;
|
|
dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
|
|
vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
|
|
* @vport: The vport that the received sequences were sent to.
|
|
*
|
|
* This function cleans up all outstanding received sequences. This is called
|
|
* by the driver when a link event or user action invalidates all the received
|
|
* sequences.
|
|
**/
|
|
void
|
|
lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_dmabuf *h_buf, *hnext;
|
|
struct lpfc_dmabuf *d_buf, *dnext;
|
|
struct hbq_dmabuf *dmabuf = NULL;
|
|
|
|
/* start with the oldest sequence on the rcv list */
|
|
list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
|
|
dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
|
|
list_del_init(&dmabuf->hbuf.list);
|
|
list_for_each_entry_safe(d_buf, dnext,
|
|
&dmabuf->dbuf.list, list) {
|
|
list_del_init(&d_buf->list);
|
|
lpfc_in_buf_free(vport->phba, d_buf);
|
|
}
|
|
lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
|
|
* @vport: The vport that the received sequences were sent to.
|
|
*
|
|
* This function determines whether any received sequences have timed out by
|
|
* first checking the vport's rcv_buffer_time_stamp. If this time_stamp
|
|
* indicates that there is at least one timed out sequence this routine will
|
|
* go through the received sequences one at a time from most inactive to most
|
|
* active to determine which ones need to be cleaned up. Once it has determined
|
|
* that a sequence needs to be cleaned up it will simply free up the resources
|
|
* without sending an abort.
|
|
**/
|
|
void
|
|
lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_dmabuf *h_buf, *hnext;
|
|
struct lpfc_dmabuf *d_buf, *dnext;
|
|
struct hbq_dmabuf *dmabuf = NULL;
|
|
unsigned long timeout;
|
|
int abort_count = 0;
|
|
|
|
timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
|
|
vport->rcv_buffer_time_stamp);
|
|
if (list_empty(&vport->rcv_buffer_list) ||
|
|
time_before(jiffies, timeout))
|
|
return;
|
|
/* start with the oldest sequence on the rcv list */
|
|
list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
|
|
dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
|
|
timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
|
|
dmabuf->time_stamp);
|
|
if (time_before(jiffies, timeout))
|
|
break;
|
|
abort_count++;
|
|
list_del_init(&dmabuf->hbuf.list);
|
|
list_for_each_entry_safe(d_buf, dnext,
|
|
&dmabuf->dbuf.list, list) {
|
|
list_del_init(&d_buf->list);
|
|
lpfc_in_buf_free(vport->phba, d_buf);
|
|
}
|
|
lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
|
|
}
|
|
if (abort_count)
|
|
lpfc_update_rcv_time_stamp(vport);
|
|
}
|
|
|
|
/**
|
|
* lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
|
|
* @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
|
|
*
|
|
* This function searches through the existing incomplete sequences that have
|
|
* been sent to this @vport. If the frame matches one of the incomplete
|
|
* sequences then the dbuf in the @dmabuf is added to the list of frames that
|
|
* make up that sequence. If no sequence is found that matches this frame then
|
|
* the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
|
|
* This function returns a pointer to the first dmabuf in the sequence list that
|
|
* the frame was linked to.
|
|
**/
|
|
static struct hbq_dmabuf *
|
|
lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
|
|
{
|
|
struct fc_frame_header *new_hdr;
|
|
struct fc_frame_header *temp_hdr;
|
|
struct lpfc_dmabuf *d_buf;
|
|
struct lpfc_dmabuf *h_buf;
|
|
struct hbq_dmabuf *seq_dmabuf = NULL;
|
|
struct hbq_dmabuf *temp_dmabuf = NULL;
|
|
|
|
INIT_LIST_HEAD(&dmabuf->dbuf.list);
|
|
dmabuf->time_stamp = jiffies;
|
|
new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
|
|
/* Use the hdr_buf to find the sequence that this frame belongs to */
|
|
list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
|
|
temp_hdr = (struct fc_frame_header *)h_buf->virt;
|
|
if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
|
|
(temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
|
|
(memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
|
|
continue;
|
|
/* found a pending sequence that matches this frame */
|
|
seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
|
|
break;
|
|
}
|
|
if (!seq_dmabuf) {
|
|
/*
|
|
* This indicates first frame received for this sequence.
|
|
* Queue the buffer on the vport's rcv_buffer_list.
|
|
*/
|
|
list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
|
|
lpfc_update_rcv_time_stamp(vport);
|
|
return dmabuf;
|
|
}
|
|
temp_hdr = seq_dmabuf->hbuf.virt;
|
|
if (be16_to_cpu(new_hdr->fh_seq_cnt) <
|
|
be16_to_cpu(temp_hdr->fh_seq_cnt)) {
|
|
list_del_init(&seq_dmabuf->hbuf.list);
|
|
list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
|
|
list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
|
|
lpfc_update_rcv_time_stamp(vport);
|
|
return dmabuf;
|
|
}
|
|
/* move this sequence to the tail to indicate a young sequence */
|
|
list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
|
|
seq_dmabuf->time_stamp = jiffies;
|
|
lpfc_update_rcv_time_stamp(vport);
|
|
if (list_empty(&seq_dmabuf->dbuf.list)) {
|
|
temp_hdr = dmabuf->hbuf.virt;
|
|
list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
|
|
return seq_dmabuf;
|
|
}
|
|
/* find the correct place in the sequence to insert this frame */
|
|
list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
|
|
temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
|
|
temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
|
|
/*
|
|
* If the frame's sequence count is greater than the frame on
|
|
* the list then insert the frame right after this frame
|
|
*/
|
|
if (be16_to_cpu(new_hdr->fh_seq_cnt) >
|
|
be16_to_cpu(temp_hdr->fh_seq_cnt)) {
|
|
list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
|
|
return seq_dmabuf;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
|
|
* @vport: pointer to a vitural port
|
|
* @dmabuf: pointer to a dmabuf that describes the FC sequence
|
|
*
|
|
* This function tries to abort from the partially assembed sequence, described
|
|
* by the information from basic abbort @dmabuf. It checks to see whether such
|
|
* partially assembled sequence held by the driver. If so, it shall free up all
|
|
* the frames from the partially assembled sequence.
|
|
*
|
|
* Return
|
|
* true -- if there is matching partially assembled sequence present and all
|
|
* the frames freed with the sequence;
|
|
* false -- if there is no matching partially assembled sequence present so
|
|
* nothing got aborted in the lower layer driver
|
|
**/
|
|
static bool
|
|
lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
|
|
struct hbq_dmabuf *dmabuf)
|
|
{
|
|
struct fc_frame_header *new_hdr;
|
|
struct fc_frame_header *temp_hdr;
|
|
struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
|
|
struct hbq_dmabuf *seq_dmabuf = NULL;
|
|
|
|
/* Use the hdr_buf to find the sequence that matches this frame */
|
|
INIT_LIST_HEAD(&dmabuf->dbuf.list);
|
|
INIT_LIST_HEAD(&dmabuf->hbuf.list);
|
|
new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
|
|
list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
|
|
temp_hdr = (struct fc_frame_header *)h_buf->virt;
|
|
if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
|
|
(temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
|
|
(memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
|
|
continue;
|
|
/* found a pending sequence that matches this frame */
|
|
seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
|
|
break;
|
|
}
|
|
|
|
/* Free up all the frames from the partially assembled sequence */
|
|
if (seq_dmabuf) {
|
|
list_for_each_entry_safe(d_buf, n_buf,
|
|
&seq_dmabuf->dbuf.list, list) {
|
|
list_del_init(&d_buf->list);
|
|
lpfc_in_buf_free(vport->phba, d_buf);
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
|
|
* @phba: Pointer to HBA context object.
|
|
* @cmd_iocbq: pointer to the command iocbq structure.
|
|
* @rsp_iocbq: pointer to the response iocbq structure.
|
|
*
|
|
* This function handles the sequence abort accept iocb command complete
|
|
* event. It properly releases the memory allocated to the sequence abort
|
|
* accept iocb.
|
|
**/
|
|
static void
|
|
lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba,
|
|
struct lpfc_iocbq *cmd_iocbq,
|
|
struct lpfc_iocbq *rsp_iocbq)
|
|
{
|
|
if (cmd_iocbq)
|
|
lpfc_sli_release_iocbq(phba, cmd_iocbq);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_seq_abort_acc - Accept sequence abort
|
|
* @phba: Pointer to HBA context object.
|
|
* @fc_hdr: pointer to a FC frame header.
|
|
*
|
|
* This function sends a basic accept to a previous unsol sequence abort
|
|
* event after aborting the sequence handling.
|
|
**/
|
|
static void
|
|
lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba,
|
|
struct fc_frame_header *fc_hdr)
|
|
{
|
|
struct lpfc_iocbq *ctiocb = NULL;
|
|
struct lpfc_nodelist *ndlp;
|
|
uint16_t oxid, rxid;
|
|
uint32_t sid, fctl;
|
|
IOCB_t *icmd;
|
|
|
|
if (!lpfc_is_link_up(phba))
|
|
return;
|
|
|
|
sid = sli4_sid_from_fc_hdr(fc_hdr);
|
|
oxid = be16_to_cpu(fc_hdr->fh_ox_id);
|
|
rxid = be16_to_cpu(fc_hdr->fh_rx_id);
|
|
|
|
ndlp = lpfc_findnode_did(phba->pport, sid);
|
|
if (!ndlp) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
|
|
"1268 Find ndlp returned NULL for oxid:x%x "
|
|
"SID:x%x\n", oxid, sid);
|
|
return;
|
|
}
|
|
|
|
/* Allocate buffer for acc iocb */
|
|
ctiocb = lpfc_sli_get_iocbq(phba);
|
|
if (!ctiocb)
|
|
return;
|
|
|
|
/* Extract the F_CTL field from FC_HDR */
|
|
fctl = sli4_fctl_from_fc_hdr(fc_hdr);
|
|
|
|
icmd = &ctiocb->iocb;
|
|
icmd->un.xseq64.bdl.bdeSize = 0;
|
|
icmd->un.xseq64.bdl.ulpIoTag32 = 0;
|
|
icmd->un.xseq64.w5.hcsw.Dfctl = 0;
|
|
icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
|
|
icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
|
|
|
|
/* Fill in the rest of iocb fields */
|
|
icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
|
|
icmd->ulpBdeCount = 0;
|
|
icmd->ulpLe = 1;
|
|
icmd->ulpClass = CLASS3;
|
|
icmd->ulpContext = ndlp->nlp_rpi;
|
|
|
|
ctiocb->iocb_cmpl = NULL;
|
|
ctiocb->vport = phba->pport;
|
|
ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl;
|
|
|
|
if (fctl & FC_FC_EX_CTX) {
|
|
/* ABTS sent by responder to CT exchange, construction
|
|
* of BA_ACC will use OX_ID from ABTS for the XRI_TAG
|
|
* field and RX_ID from ABTS for RX_ID field.
|
|
*/
|
|
bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP);
|
|
bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid);
|
|
ctiocb->sli4_xritag = oxid;
|
|
} else {
|
|
/* ABTS sent by initiator to CT exchange, construction
|
|
* of BA_ACC will need to allocate a new XRI as for the
|
|
* XRI_TAG and RX_ID fields.
|
|
*/
|
|
bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT);
|
|
bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI);
|
|
ctiocb->sli4_xritag = NO_XRI;
|
|
}
|
|
bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid);
|
|
|
|
/* Xmit CT abts accept on exchange <xid> */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
|
|
"1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
|
|
CMD_XMIT_BLS_RSP64_CX, phba->link_state);
|
|
lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
|
|
* @vport: Pointer to the vport on which this sequence was received
|
|
* @dmabuf: pointer to a dmabuf that describes the FC sequence
|
|
*
|
|
* This function handles an SLI-4 unsolicited abort event. If the unsolicited
|
|
* receive sequence is only partially assembed by the driver, it shall abort
|
|
* the partially assembled frames for the sequence. Otherwise, if the
|
|
* unsolicited receive sequence has been completely assembled and passed to
|
|
* the Upper Layer Protocol (UPL), it then mark the per oxid status for the
|
|
* unsolicited sequence has been aborted. After that, it will issue a basic
|
|
* accept to accept the abort.
|
|
**/
|
|
void
|
|
lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
|
|
struct hbq_dmabuf *dmabuf)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct fc_frame_header fc_hdr;
|
|
uint32_t fctl;
|
|
bool abts_par;
|
|
|
|
/* Make a copy of fc_hdr before the dmabuf being released */
|
|
memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
|
|
fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
|
|
|
|
if (fctl & FC_FC_EX_CTX) {
|
|
/*
|
|
* ABTS sent by responder to exchange, just free the buffer
|
|
*/
|
|
lpfc_in_buf_free(phba, &dmabuf->dbuf);
|
|
} else {
|
|
/*
|
|
* ABTS sent by initiator to exchange, need to do cleanup
|
|
*/
|
|
/* Try to abort partially assembled seq */
|
|
abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf);
|
|
|
|
/* Send abort to ULP if partially seq abort failed */
|
|
if (abts_par == false)
|
|
lpfc_sli4_send_seq_to_ulp(vport, dmabuf);
|
|
else
|
|
lpfc_in_buf_free(phba, &dmabuf->dbuf);
|
|
}
|
|
/* Send basic accept (BA_ACC) to the abort requester */
|
|
lpfc_sli4_seq_abort_acc(phba, &fc_hdr);
|
|
}
|
|
|
|
/**
|
|
* lpfc_seq_complete - Indicates if a sequence is complete
|
|
* @dmabuf: pointer to a dmabuf that describes the FC sequence
|
|
*
|
|
* This function checks the sequence, starting with the frame described by
|
|
* @dmabuf, to see if all the frames associated with this sequence are present.
|
|
* the frames associated with this sequence are linked to the @dmabuf using the
|
|
* dbuf list. This function looks for two major things. 1) That the first frame
|
|
* has a sequence count of zero. 2) There is a frame with last frame of sequence
|
|
* set. 3) That there are no holes in the sequence count. The function will
|
|
* return 1 when the sequence is complete, otherwise it will return 0.
|
|
**/
|
|
static int
|
|
lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
|
|
{
|
|
struct fc_frame_header *hdr;
|
|
struct lpfc_dmabuf *d_buf;
|
|
struct hbq_dmabuf *seq_dmabuf;
|
|
uint32_t fctl;
|
|
int seq_count = 0;
|
|
|
|
hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
|
|
/* make sure first fame of sequence has a sequence count of zero */
|
|
if (hdr->fh_seq_cnt != seq_count)
|
|
return 0;
|
|
fctl = (hdr->fh_f_ctl[0] << 16 |
|
|
hdr->fh_f_ctl[1] << 8 |
|
|
hdr->fh_f_ctl[2]);
|
|
/* If last frame of sequence we can return success. */
|
|
if (fctl & FC_FC_END_SEQ)
|
|
return 1;
|
|
list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
|
|
seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
|
|
hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
|
|
/* If there is a hole in the sequence count then fail. */
|
|
if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
|
|
return 0;
|
|
fctl = (hdr->fh_f_ctl[0] << 16 |
|
|
hdr->fh_f_ctl[1] << 8 |
|
|
hdr->fh_f_ctl[2]);
|
|
/* If last frame of sequence we can return success. */
|
|
if (fctl & FC_FC_END_SEQ)
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_prep_seq - Prep sequence for ULP processing
|
|
* @vport: Pointer to the vport on which this sequence was received
|
|
* @dmabuf: pointer to a dmabuf that describes the FC sequence
|
|
*
|
|
* This function takes a sequence, described by a list of frames, and creates
|
|
* a list of iocbq structures to describe the sequence. This iocbq list will be
|
|
* used to issue to the generic unsolicited sequence handler. This routine
|
|
* returns a pointer to the first iocbq in the list. If the function is unable
|
|
* to allocate an iocbq then it throw out the received frames that were not
|
|
* able to be described and return a pointer to the first iocbq. If unable to
|
|
* allocate any iocbqs (including the first) this function will return NULL.
|
|
**/
|
|
static struct lpfc_iocbq *
|
|
lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
|
|
{
|
|
struct lpfc_dmabuf *d_buf, *n_buf;
|
|
struct lpfc_iocbq *first_iocbq, *iocbq;
|
|
struct fc_frame_header *fc_hdr;
|
|
uint32_t sid;
|
|
struct ulp_bde64 *pbde;
|
|
|
|
fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
|
|
/* remove from receive buffer list */
|
|
list_del_init(&seq_dmabuf->hbuf.list);
|
|
lpfc_update_rcv_time_stamp(vport);
|
|
/* get the Remote Port's SID */
|
|
sid = sli4_sid_from_fc_hdr(fc_hdr);
|
|
/* Get an iocbq struct to fill in. */
|
|
first_iocbq = lpfc_sli_get_iocbq(vport->phba);
|
|
if (first_iocbq) {
|
|
/* Initialize the first IOCB. */
|
|
first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
|
|
first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
|
|
first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
|
|
first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id);
|
|
first_iocbq->iocb.unsli3.rcvsli3.vpi =
|
|
vport->vpi + vport->phba->vpi_base;
|
|
/* put the first buffer into the first IOCBq */
|
|
first_iocbq->context2 = &seq_dmabuf->dbuf;
|
|
first_iocbq->context3 = NULL;
|
|
first_iocbq->iocb.ulpBdeCount = 1;
|
|
first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
|
|
LPFC_DATA_BUF_SIZE;
|
|
first_iocbq->iocb.un.rcvels.remoteID = sid;
|
|
first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
|
|
bf_get(lpfc_rcqe_length,
|
|
&seq_dmabuf->cq_event.cqe.rcqe_cmpl);
|
|
}
|
|
iocbq = first_iocbq;
|
|
/*
|
|
* Each IOCBq can have two Buffers assigned, so go through the list
|
|
* of buffers for this sequence and save two buffers in each IOCBq
|
|
*/
|
|
list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
|
|
if (!iocbq) {
|
|
lpfc_in_buf_free(vport->phba, d_buf);
|
|
continue;
|
|
}
|
|
if (!iocbq->context3) {
|
|
iocbq->context3 = d_buf;
|
|
iocbq->iocb.ulpBdeCount++;
|
|
pbde = (struct ulp_bde64 *)
|
|
&iocbq->iocb.unsli3.sli3Words[4];
|
|
pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
|
|
first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
|
|
bf_get(lpfc_rcqe_length,
|
|
&seq_dmabuf->cq_event.cqe.rcqe_cmpl);
|
|
} else {
|
|
iocbq = lpfc_sli_get_iocbq(vport->phba);
|
|
if (!iocbq) {
|
|
if (first_iocbq) {
|
|
first_iocbq->iocb.ulpStatus =
|
|
IOSTAT_FCP_RSP_ERROR;
|
|
first_iocbq->iocb.un.ulpWord[4] =
|
|
IOERR_NO_RESOURCES;
|
|
}
|
|
lpfc_in_buf_free(vport->phba, d_buf);
|
|
continue;
|
|
}
|
|
iocbq->context2 = d_buf;
|
|
iocbq->context3 = NULL;
|
|
iocbq->iocb.ulpBdeCount = 1;
|
|
iocbq->iocb.un.cont64[0].tus.f.bdeSize =
|
|
LPFC_DATA_BUF_SIZE;
|
|
first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
|
|
bf_get(lpfc_rcqe_length,
|
|
&seq_dmabuf->cq_event.cqe.rcqe_cmpl);
|
|
iocbq->iocb.un.rcvels.remoteID = sid;
|
|
list_add_tail(&iocbq->list, &first_iocbq->list);
|
|
}
|
|
}
|
|
return first_iocbq;
|
|
}
|
|
|
|
static void
|
|
lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
|
|
struct hbq_dmabuf *seq_dmabuf)
|
|
{
|
|
struct fc_frame_header *fc_hdr;
|
|
struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
|
|
fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
|
|
iocbq = lpfc_prep_seq(vport, seq_dmabuf);
|
|
if (!iocbq) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2707 Ring %d handler: Failed to allocate "
|
|
"iocb Rctl x%x Type x%x received\n",
|
|
LPFC_ELS_RING,
|
|
fc_hdr->fh_r_ctl, fc_hdr->fh_type);
|
|
return;
|
|
}
|
|
if (!lpfc_complete_unsol_iocb(phba,
|
|
&phba->sli.ring[LPFC_ELS_RING],
|
|
iocbq, fc_hdr->fh_r_ctl,
|
|
fc_hdr->fh_type))
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
|
|
"2540 Ring %d handler: unexpected Rctl "
|
|
"x%x Type x%x received\n",
|
|
LPFC_ELS_RING,
|
|
fc_hdr->fh_r_ctl, fc_hdr->fh_type);
|
|
|
|
/* Free iocb created in lpfc_prep_seq */
|
|
list_for_each_entry_safe(curr_iocb, next_iocb,
|
|
&iocbq->list, list) {
|
|
list_del_init(&curr_iocb->list);
|
|
lpfc_sli_release_iocbq(phba, curr_iocb);
|
|
}
|
|
lpfc_sli_release_iocbq(phba, iocbq);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
|
|
* @phba: Pointer to HBA context object.
|
|
*
|
|
* This function is called with no lock held. This function processes all
|
|
* the received buffers and gives it to upper layers when a received buffer
|
|
* indicates that it is the final frame in the sequence. The interrupt
|
|
* service routine processes received buffers at interrupt contexts and adds
|
|
* received dma buffers to the rb_pend_list queue and signals the worker thread.
|
|
* Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
|
|
* appropriate receive function when the final frame in a sequence is received.
|
|
**/
|
|
void
|
|
lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
|
|
struct hbq_dmabuf *dmabuf)
|
|
{
|
|
struct hbq_dmabuf *seq_dmabuf;
|
|
struct fc_frame_header *fc_hdr;
|
|
struct lpfc_vport *vport;
|
|
uint32_t fcfi;
|
|
|
|
/* Process each received buffer */
|
|
fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
|
|
/* check to see if this a valid type of frame */
|
|
if (lpfc_fc_frame_check(phba, fc_hdr)) {
|
|
lpfc_in_buf_free(phba, &dmabuf->dbuf);
|
|
return;
|
|
}
|
|
fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->cq_event.cqe.rcqe_cmpl);
|
|
vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
|
|
if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) {
|
|
/* throw out the frame */
|
|
lpfc_in_buf_free(phba, &dmabuf->dbuf);
|
|
return;
|
|
}
|
|
/* Handle the basic abort sequence (BA_ABTS) event */
|
|
if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
|
|
lpfc_sli4_handle_unsol_abort(vport, dmabuf);
|
|
return;
|
|
}
|
|
|
|
/* Link this frame */
|
|
seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
|
|
if (!seq_dmabuf) {
|
|
/* unable to add frame to vport - throw it out */
|
|
lpfc_in_buf_free(phba, &dmabuf->dbuf);
|
|
return;
|
|
}
|
|
/* If not last frame in sequence continue processing frames. */
|
|
if (!lpfc_seq_complete(seq_dmabuf))
|
|
return;
|
|
|
|
/* Send the complete sequence to the upper layer protocol */
|
|
lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is invoked to post rpi header templates to the
|
|
* HBA consistent with the SLI-4 interface spec. This routine
|
|
* posts a PAGE_SIZE memory region to the port to hold up to
|
|
* PAGE_SIZE modulo 64 rpi context headers.
|
|
*
|
|
* This routine does not require any locks. It's usage is expected
|
|
* to be driver load or reset recovery when the driver is
|
|
* sequential.
|
|
*
|
|
* Return codes
|
|
* 0 - successful
|
|
* EIO - The mailbox failed to complete successfully.
|
|
* When this error occurs, the driver is not guaranteed
|
|
* to have any rpi regions posted to the device and
|
|
* must either attempt to repost the regions or take a
|
|
* fatal error.
|
|
**/
|
|
int
|
|
lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_rpi_hdr *rpi_page;
|
|
uint32_t rc = 0;
|
|
|
|
/* Post all rpi memory regions to the port. */
|
|
list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
|
|
rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
|
|
if (rc != MBX_SUCCESS) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2008 Error %d posting all rpi "
|
|
"headers\n", rc);
|
|
rc = -EIO;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @rpi_page: pointer to the rpi memory region.
|
|
*
|
|
* This routine is invoked to post a single rpi header to the
|
|
* HBA consistent with the SLI-4 interface spec. This memory region
|
|
* maps up to 64 rpi context regions.
|
|
*
|
|
* Return codes
|
|
* 0 - successful
|
|
* ENOMEM - No available memory
|
|
* EIO - The mailbox failed to complete successfully.
|
|
**/
|
|
int
|
|
lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
|
|
{
|
|
LPFC_MBOXQ_t *mboxq;
|
|
struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
|
|
uint32_t rc = 0;
|
|
uint32_t mbox_tmo;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
|
|
/* The port is notified of the header region via a mailbox command. */
|
|
mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mboxq) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2001 Unable to allocate memory for issuing "
|
|
"SLI_CONFIG_SPECIAL mailbox command\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* Post all rpi memory regions to the port. */
|
|
hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
|
|
mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
|
|
lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
|
|
sizeof(struct lpfc_mbx_post_hdr_tmpl) -
|
|
sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
|
|
bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
|
|
hdr_tmpl, rpi_page->page_count);
|
|
bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
|
|
rpi_page->start_rpi);
|
|
hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
|
|
hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
|
|
shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
if (rc != MBX_TIMEOUT)
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
if (shdr_status || shdr_add_status || rc) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2514 POST_RPI_HDR mailbox failed with "
|
|
"status x%x add_status x%x, mbx status x%x\n",
|
|
shdr_status, shdr_add_status, rc);
|
|
rc = -ENXIO;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is invoked to post rpi header templates to the
|
|
* HBA consistent with the SLI-4 interface spec. This routine
|
|
* posts a PAGE_SIZE memory region to the port to hold up to
|
|
* PAGE_SIZE modulo 64 rpi context headers.
|
|
*
|
|
* Returns
|
|
* A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
|
|
* LPFC_RPI_ALLOC_ERROR if no rpis are available.
|
|
**/
|
|
int
|
|
lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
|
|
{
|
|
int rpi;
|
|
uint16_t max_rpi, rpi_base, rpi_limit;
|
|
uint16_t rpi_remaining;
|
|
struct lpfc_rpi_hdr *rpi_hdr;
|
|
|
|
max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
|
|
rpi_base = phba->sli4_hba.max_cfg_param.rpi_base;
|
|
rpi_limit = phba->sli4_hba.next_rpi;
|
|
|
|
/*
|
|
* The valid rpi range is not guaranteed to be zero-based. Start
|
|
* the search at the rpi_base as reported by the port.
|
|
*/
|
|
spin_lock_irq(&phba->hbalock);
|
|
rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base);
|
|
if (rpi >= rpi_limit || rpi < rpi_base)
|
|
rpi = LPFC_RPI_ALLOC_ERROR;
|
|
else {
|
|
set_bit(rpi, phba->sli4_hba.rpi_bmask);
|
|
phba->sli4_hba.max_cfg_param.rpi_used++;
|
|
phba->sli4_hba.rpi_count++;
|
|
}
|
|
|
|
/*
|
|
* Don't try to allocate more rpi header regions if the device limit
|
|
* on available rpis max has been exhausted.
|
|
*/
|
|
if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
|
|
(phba->sli4_hba.rpi_count >= max_rpi)) {
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return rpi;
|
|
}
|
|
|
|
/*
|
|
* If the driver is running low on rpi resources, allocate another
|
|
* page now. Note that the next_rpi value is used because
|
|
* it represents how many are actually in use whereas max_rpi notes
|
|
* how many are supported max by the device.
|
|
*/
|
|
rpi_remaining = phba->sli4_hba.next_rpi - rpi_base -
|
|
phba->sli4_hba.rpi_count;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
|
|
rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
|
|
if (!rpi_hdr) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2002 Error Could not grow rpi "
|
|
"count\n");
|
|
} else {
|
|
lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
|
|
}
|
|
}
|
|
|
|
return rpi;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_free_rpi - Release an rpi for reuse.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is invoked to release an rpi to the pool of
|
|
* available rpis maintained by the driver.
|
|
**/
|
|
void
|
|
lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
|
|
{
|
|
spin_lock_irq(&phba->hbalock);
|
|
clear_bit(rpi, phba->sli4_hba.rpi_bmask);
|
|
phba->sli4_hba.rpi_count--;
|
|
phba->sli4_hba.max_cfg_param.rpi_used--;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_remove_rpis - Remove the rpi bitmask region
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is invoked to remove the memory region that
|
|
* provided rpi via a bitmask.
|
|
**/
|
|
void
|
|
lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
|
|
{
|
|
kfree(phba->sli4_hba.rpi_bmask);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_resume_rpi - Remove the rpi bitmask region
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is invoked to remove the memory region that
|
|
* provided rpi via a bitmask.
|
|
**/
|
|
int
|
|
lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp)
|
|
{
|
|
LPFC_MBOXQ_t *mboxq;
|
|
struct lpfc_hba *phba = ndlp->phba;
|
|
int rc;
|
|
|
|
/* The port is notified of the header region via a mailbox command. */
|
|
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mboxq)
|
|
return -ENOMEM;
|
|
|
|
/* Post all rpi memory regions to the port. */
|
|
lpfc_resume_rpi(mboxq, ndlp);
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2010 Resume RPI Mailbox failed "
|
|
"status %d, mbxStatus x%x\n", rc,
|
|
bf_get(lpfc_mqe_status, &mboxq->u.mqe));
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
return -EIO;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_init_vpi - Initialize a vpi with the port
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @vpi: vpi value to activate with the port.
|
|
*
|
|
* This routine is invoked to activate a vpi with the
|
|
* port when the host intends to use vports with a
|
|
* nonzero vpi.
|
|
*
|
|
* Returns:
|
|
* 0 success
|
|
* -Evalue otherwise
|
|
**/
|
|
int
|
|
lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi)
|
|
{
|
|
LPFC_MBOXQ_t *mboxq;
|
|
int rc = 0;
|
|
int retval = MBX_SUCCESS;
|
|
uint32_t mbox_tmo;
|
|
|
|
if (vpi == 0)
|
|
return -EINVAL;
|
|
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mboxq)
|
|
return -ENOMEM;
|
|
lpfc_init_vpi(phba, mboxq, vpi);
|
|
mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI);
|
|
rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
|
|
if (rc != MBX_SUCCESS) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2022 INIT VPI Mailbox failed "
|
|
"status %d, mbxStatus x%x\n", rc,
|
|
bf_get(lpfc_mqe_status, &mboxq->u.mqe));
|
|
retval = -EIO;
|
|
}
|
|
if (rc != MBX_TIMEOUT)
|
|
mempool_free(mboxq, phba->mbox_mem_pool);
|
|
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @mboxq: Pointer to mailbox object.
|
|
*
|
|
* This routine is invoked to manually add a single FCF record. The caller
|
|
* must pass a completely initialized FCF_Record. This routine takes
|
|
* care of the nonembedded mailbox operations.
|
|
**/
|
|
static void
|
|
lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
|
|
{
|
|
void *virt_addr;
|
|
union lpfc_sli4_cfg_shdr *shdr;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
|
|
virt_addr = mboxq->sge_array->addr[0];
|
|
/* The IOCTL status is embedded in the mailbox subheader. */
|
|
shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
|
|
|
|
if ((shdr_status || shdr_add_status) &&
|
|
(shdr_status != STATUS_FCF_IN_USE))
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2558 ADD_FCF_RECORD mailbox failed with "
|
|
"status x%x add_status x%x\n",
|
|
shdr_status, shdr_add_status);
|
|
|
|
lpfc_sli4_mbox_cmd_free(phba, mboxq);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_add_fcf_record - Manually add an FCF Record.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @fcf_record: pointer to the initialized fcf record to add.
|
|
*
|
|
* This routine is invoked to manually add a single FCF record. The caller
|
|
* must pass a completely initialized FCF_Record. This routine takes
|
|
* care of the nonembedded mailbox operations.
|
|
**/
|
|
int
|
|
lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
|
|
{
|
|
int rc = 0;
|
|
LPFC_MBOXQ_t *mboxq;
|
|
uint8_t *bytep;
|
|
void *virt_addr;
|
|
dma_addr_t phys_addr;
|
|
struct lpfc_mbx_sge sge;
|
|
uint32_t alloc_len, req_len;
|
|
uint32_t fcfindex;
|
|
|
|
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mboxq) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2009 Failed to allocate mbox for ADD_FCF cmd\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
|
|
sizeof(uint32_t);
|
|
|
|
/* Allocate DMA memory and set up the non-embedded mailbox command */
|
|
alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
|
|
req_len, LPFC_SLI4_MBX_NEMBED);
|
|
if (alloc_len < req_len) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2523 Allocated DMA memory size (x%x) is "
|
|
"less than the requested DMA memory "
|
|
"size (x%x)\n", alloc_len, req_len);
|
|
lpfc_sli4_mbox_cmd_free(phba, mboxq);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/*
|
|
* Get the first SGE entry from the non-embedded DMA memory. This
|
|
* routine only uses a single SGE.
|
|
*/
|
|
lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
|
|
phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
|
|
virt_addr = mboxq->sge_array->addr[0];
|
|
/*
|
|
* Configure the FCF record for FCFI 0. This is the driver's
|
|
* hardcoded default and gets used in nonFIP mode.
|
|
*/
|
|
fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
|
|
bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
|
|
lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
|
|
|
|
/*
|
|
* Copy the fcf_index and the FCF Record Data. The data starts after
|
|
* the FCoE header plus word10. The data copy needs to be endian
|
|
* correct.
|
|
*/
|
|
bytep += sizeof(uint32_t);
|
|
lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
|
|
mboxq->vport = phba->pport;
|
|
mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2515 ADD_FCF_RECORD mailbox failed with "
|
|
"status 0x%x\n", rc);
|
|
lpfc_sli4_mbox_cmd_free(phba, mboxq);
|
|
rc = -EIO;
|
|
} else
|
|
rc = 0;
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @fcf_record: pointer to the fcf record to write the default data.
|
|
* @fcf_index: FCF table entry index.
|
|
*
|
|
* This routine is invoked to build the driver's default FCF record. The
|
|
* values used are hardcoded. This routine handles memory initialization.
|
|
*
|
|
**/
|
|
void
|
|
lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
|
|
struct fcf_record *fcf_record,
|
|
uint16_t fcf_index)
|
|
{
|
|
memset(fcf_record, 0, sizeof(struct fcf_record));
|
|
fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
|
|
fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
|
|
fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
|
|
bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
|
|
bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
|
|
bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
|
|
bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
|
|
bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
|
|
bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
|
|
bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
|
|
bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
|
|
bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
|
|
bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
|
|
bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
|
|
bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
|
|
bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
|
|
LPFC_FCF_FPMA | LPFC_FCF_SPMA);
|
|
/* Set the VLAN bit map */
|
|
if (phba->valid_vlan) {
|
|
fcf_record->vlan_bitmap[phba->vlan_id / 8]
|
|
= 1 << (phba->vlan_id % 8);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @fcf_index: FCF table entry offset.
|
|
*
|
|
* This routine is invoked to scan the entire FCF table by reading FCF
|
|
* record and processing it one at a time starting from the @fcf_index
|
|
* for initial FCF discovery or fast FCF failover rediscovery.
|
|
*
|
|
* Return 0 if the mailbox command is submitted sucessfully, none 0
|
|
* otherwise.
|
|
**/
|
|
int
|
|
lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
|
|
{
|
|
int rc = 0, error;
|
|
LPFC_MBOXQ_t *mboxq;
|
|
|
|
phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
|
|
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mboxq) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2000 Failed to allocate mbox for "
|
|
"READ_FCF cmd\n");
|
|
error = -ENOMEM;
|
|
goto fail_fcf_scan;
|
|
}
|
|
/* Construct the read FCF record mailbox command */
|
|
rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
|
|
if (rc) {
|
|
error = -EINVAL;
|
|
goto fail_fcf_scan;
|
|
}
|
|
/* Issue the mailbox command asynchronously */
|
|
mboxq->vport = phba->pport;
|
|
mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED)
|
|
error = -EIO;
|
|
else {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->hba_flag |= FCF_DISC_INPROGRESS;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
/* Reset FCF round robin index bmask for new scan */
|
|
if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
|
|
memset(phba->fcf.fcf_rr_bmask, 0,
|
|
sizeof(*phba->fcf.fcf_rr_bmask));
|
|
error = 0;
|
|
}
|
|
fail_fcf_scan:
|
|
if (error) {
|
|
if (mboxq)
|
|
lpfc_sli4_mbox_cmd_free(phba, mboxq);
|
|
/* FCF scan failed, clear FCF_DISC_INPROGRESS flag */
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for round robin fcf.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @fcf_index: FCF table entry offset.
|
|
*
|
|
* This routine is invoked to read an FCF record indicated by @fcf_index
|
|
* and to use it for FLOGI round robin FCF failover.
|
|
*
|
|
* Return 0 if the mailbox command is submitted sucessfully, none 0
|
|
* otherwise.
|
|
**/
|
|
int
|
|
lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
|
|
{
|
|
int rc = 0, error;
|
|
LPFC_MBOXQ_t *mboxq;
|
|
|
|
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mboxq) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
|
|
"2763 Failed to allocate mbox for "
|
|
"READ_FCF cmd\n");
|
|
error = -ENOMEM;
|
|
goto fail_fcf_read;
|
|
}
|
|
/* Construct the read FCF record mailbox command */
|
|
rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
|
|
if (rc) {
|
|
error = -EINVAL;
|
|
goto fail_fcf_read;
|
|
}
|
|
/* Issue the mailbox command asynchronously */
|
|
mboxq->vport = phba->pport;
|
|
mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED)
|
|
error = -EIO;
|
|
else
|
|
error = 0;
|
|
|
|
fail_fcf_read:
|
|
if (error && mboxq)
|
|
lpfc_sli4_mbox_cmd_free(phba, mboxq);
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
* @fcf_index: FCF table entry offset.
|
|
*
|
|
* This routine is invoked to read an FCF record indicated by @fcf_index to
|
|
* determine whether it's eligible for FLOGI round robin failover list.
|
|
*
|
|
* Return 0 if the mailbox command is submitted sucessfully, none 0
|
|
* otherwise.
|
|
**/
|
|
int
|
|
lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
|
|
{
|
|
int rc = 0, error;
|
|
LPFC_MBOXQ_t *mboxq;
|
|
|
|
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mboxq) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
|
|
"2758 Failed to allocate mbox for "
|
|
"READ_FCF cmd\n");
|
|
error = -ENOMEM;
|
|
goto fail_fcf_read;
|
|
}
|
|
/* Construct the read FCF record mailbox command */
|
|
rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
|
|
if (rc) {
|
|
error = -EINVAL;
|
|
goto fail_fcf_read;
|
|
}
|
|
/* Issue the mailbox command asynchronously */
|
|
mboxq->vport = phba->pport;
|
|
mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
|
|
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED)
|
|
error = -EIO;
|
|
else
|
|
error = 0;
|
|
|
|
fail_fcf_read:
|
|
if (error && mboxq)
|
|
lpfc_sli4_mbox_cmd_free(phba, mboxq);
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is to get the next eligible FCF record index in a round
|
|
* robin fashion. If the next eligible FCF record index equals to the
|
|
* initial round robin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
|
|
* shall be returned, otherwise, the next eligible FCF record's index
|
|
* shall be returned.
|
|
**/
|
|
uint16_t
|
|
lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
|
|
{
|
|
uint16_t next_fcf_index;
|
|
|
|
/* Search from the currently registered FCF index */
|
|
next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
|
|
LPFC_SLI4_FCF_TBL_INDX_MAX,
|
|
phba->fcf.current_rec.fcf_indx);
|
|
/* Wrap around condition on phba->fcf.fcf_rr_bmask */
|
|
if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
|
|
next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
|
|
LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
|
|
/* Round robin failover stop condition */
|
|
if (next_fcf_index == phba->fcf.fcf_rr_init_indx)
|
|
return LPFC_FCOE_FCF_NEXT_NONE;
|
|
|
|
return next_fcf_index;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine sets the FCF record index in to the eligible bmask for
|
|
* round robin failover search. It checks to make sure that the index
|
|
* does not go beyond the range of the driver allocated bmask dimension
|
|
* before setting the bit.
|
|
*
|
|
* Returns 0 if the index bit successfully set, otherwise, it returns
|
|
* -EINVAL.
|
|
**/
|
|
int
|
|
lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
|
|
{
|
|
if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
|
|
"2610 HBA FCF index reached driver's "
|
|
"book keeping dimension: fcf_index:%d, "
|
|
"driver_bmask_max:%d\n",
|
|
fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
|
|
return -EINVAL;
|
|
}
|
|
/* Set the eligible FCF record index bmask */
|
|
set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fcf_rr_index_set - Clear bmask from eligible fcf record index
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine clears the FCF record index from the eligible bmask for
|
|
* round robin failover search. It checks to make sure that the index
|
|
* does not go beyond the range of the driver allocated bmask dimension
|
|
* before clearing the bit.
|
|
**/
|
|
void
|
|
lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
|
|
{
|
|
if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
|
|
"2762 HBA FCF index goes beyond driver's "
|
|
"book keeping dimension: fcf_index:%d, "
|
|
"driver_bmask_max:%d\n",
|
|
fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
|
|
return;
|
|
}
|
|
/* Clear the eligible FCF record index bmask */
|
|
clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
|
|
}
|
|
|
|
/**
|
|
* lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is the completion routine for the rediscover FCF table mailbox
|
|
* command. If the mailbox command returned failure, it will try to stop the
|
|
* FCF rediscover wait timer.
|
|
**/
|
|
void
|
|
lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
|
|
{
|
|
struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
|
|
uint32_t shdr_status, shdr_add_status;
|
|
|
|
redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
|
|
|
|
shdr_status = bf_get(lpfc_mbox_hdr_status,
|
|
&redisc_fcf->header.cfg_shdr.response);
|
|
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
|
|
&redisc_fcf->header.cfg_shdr.response);
|
|
if (shdr_status || shdr_add_status) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
|
|
"2746 Requesting for FCF rediscovery failed "
|
|
"status x%x add_status x%x\n",
|
|
shdr_status, shdr_add_status);
|
|
if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
/*
|
|
* CVL event triggered FCF rediscover request failed,
|
|
* last resort to re-try current registered FCF entry.
|
|
*/
|
|
lpfc_retry_pport_discovery(phba);
|
|
} else {
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
/*
|
|
* DEAD FCF event triggered FCF rediscover request
|
|
* failed, last resort to fail over as a link down
|
|
* to FCF registration.
|
|
*/
|
|
lpfc_sli4_fcf_dead_failthrough(phba);
|
|
}
|
|
} else {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
|
|
"2775 Start FCF rediscovery quiescent period "
|
|
"wait timer before scaning FCF table\n");
|
|
/*
|
|
* Start FCF rediscovery wait timer for pending FCF
|
|
* before rescan FCF record table.
|
|
*/
|
|
lpfc_fcf_redisc_wait_start_timer(phba);
|
|
}
|
|
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_redisc_all_fcf - Request to rediscover entire FCF table by port.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This routine is invoked to request for rediscovery of the entire FCF table
|
|
* by the port.
|
|
**/
|
|
int
|
|
lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
|
|
{
|
|
LPFC_MBOXQ_t *mbox;
|
|
struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
|
|
int rc, length;
|
|
|
|
/* Cancel retry delay timers to all vports before FCF rediscover */
|
|
lpfc_cancel_all_vport_retry_delay_timer(phba);
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
|
|
"2745 Failed to allocate mbox for "
|
|
"requesting FCF rediscover.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
|
|
sizeof(struct lpfc_sli4_cfg_mhdr));
|
|
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
|
|
LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
|
|
length, LPFC_SLI4_MBX_EMBED);
|
|
|
|
redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
|
|
/* Set count to 0 for invalidating the entire FCF database */
|
|
bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
|
|
|
|
/* Issue the mailbox command asynchronously */
|
|
mbox->vport = phba->pport;
|
|
mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
|
|
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
|
|
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return -EIO;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This function is the failover routine as a last resort to the FCF DEAD
|
|
* event when driver failed to perform fast FCF failover.
|
|
**/
|
|
void
|
|
lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
|
|
{
|
|
uint32_t link_state;
|
|
|
|
/*
|
|
* Last resort as FCF DEAD event failover will treat this as
|
|
* a link down, but save the link state because we don't want
|
|
* it to be changed to Link Down unless it is already down.
|
|
*/
|
|
link_state = phba->link_state;
|
|
lpfc_linkdown(phba);
|
|
phba->link_state = link_state;
|
|
|
|
/* Unregister FCF if no devices connected to it */
|
|
lpfc_unregister_unused_fcf(phba);
|
|
}
|
|
|
|
/**
|
|
* lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
|
|
* @phba: pointer to lpfc hba data structure.
|
|
*
|
|
* This function read region 23 and parse TLV for port status to
|
|
* decide if the user disaled the port. If the TLV indicates the
|
|
* port is disabled, the hba_flag is set accordingly.
|
|
**/
|
|
void
|
|
lpfc_sli_read_link_ste(struct lpfc_hba *phba)
|
|
{
|
|
LPFC_MBOXQ_t *pmb = NULL;
|
|
MAILBOX_t *mb;
|
|
uint8_t *rgn23_data = NULL;
|
|
uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset;
|
|
int rc;
|
|
|
|
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmb) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2600 lpfc_sli_read_serdes_param failed to"
|
|
" allocate mailbox memory\n");
|
|
goto out;
|
|
}
|
|
mb = &pmb->u.mb;
|
|
|
|
/* Get adapter Region 23 data */
|
|
rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
|
|
if (!rgn23_data)
|
|
goto out;
|
|
|
|
do {
|
|
lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
|
|
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
|
|
|
|
if (rc != MBX_SUCCESS) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"2601 lpfc_sli_read_link_ste failed to"
|
|
" read config region 23 rc 0x%x Status 0x%x\n",
|
|
rc, mb->mbxStatus);
|
|
mb->un.varDmp.word_cnt = 0;
|
|
}
|
|
/*
|
|
* dump mem may return a zero when finished or we got a
|
|
* mailbox error, either way we are done.
|
|
*/
|
|
if (mb->un.varDmp.word_cnt == 0)
|
|
break;
|
|
if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
|
|
mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
|
|
|
|
lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
|
|
rgn23_data + offset,
|
|
mb->un.varDmp.word_cnt);
|
|
offset += mb->un.varDmp.word_cnt;
|
|
} while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
|
|
|
|
data_size = offset;
|
|
offset = 0;
|
|
|
|
if (!data_size)
|
|
goto out;
|
|
|
|
/* Check the region signature first */
|
|
if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2619 Config region 23 has bad signature\n");
|
|
goto out;
|
|
}
|
|
offset += 4;
|
|
|
|
/* Check the data structure version */
|
|
if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"2620 Config region 23 has bad version\n");
|
|
goto out;
|
|
}
|
|
offset += 4;
|
|
|
|
/* Parse TLV entries in the region */
|
|
while (offset < data_size) {
|
|
if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
|
|
break;
|
|
/*
|
|
* If the TLV is not driver specific TLV or driver id is
|
|
* not linux driver id, skip the record.
|
|
*/
|
|
if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
|
|
(rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
|
|
(rgn23_data[offset + 3] != 0)) {
|
|
offset += rgn23_data[offset + 1] * 4 + 4;
|
|
continue;
|
|
}
|
|
|
|
/* Driver found a driver specific TLV in the config region */
|
|
sub_tlv_len = rgn23_data[offset + 1] * 4;
|
|
offset += 4;
|
|
tlv_offset = 0;
|
|
|
|
/*
|
|
* Search for configured port state sub-TLV.
|
|
*/
|
|
while ((offset < data_size) &&
|
|
(tlv_offset < sub_tlv_len)) {
|
|
if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
|
|
offset += 4;
|
|
tlv_offset += 4;
|
|
break;
|
|
}
|
|
if (rgn23_data[offset] != PORT_STE_TYPE) {
|
|
offset += rgn23_data[offset + 1] * 4 + 4;
|
|
tlv_offset += rgn23_data[offset + 1] * 4 + 4;
|
|
continue;
|
|
}
|
|
|
|
/* This HBA contains PORT_STE configured */
|
|
if (!rgn23_data[offset + 2])
|
|
phba->hba_flag |= LINK_DISABLED;
|
|
|
|
goto out;
|
|
}
|
|
}
|
|
out:
|
|
if (pmb)
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
kfree(rgn23_data);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
|
|
* @vport: pointer to vport data structure.
|
|
*
|
|
* This function iterate through the mailboxq and clean up all REG_LOGIN
|
|
* and REG_VPI mailbox commands associated with the vport. This function
|
|
* is called when driver want to restart discovery of the vport due to
|
|
* a Clear Virtual Link event.
|
|
**/
|
|
void
|
|
lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
LPFC_MBOXQ_t *mb, *nextmb;
|
|
struct lpfc_dmabuf *mp;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
|
|
if (mb->vport != vport)
|
|
continue;
|
|
|
|
if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
|
|
(mb->u.mb.mbxCommand != MBX_REG_VPI))
|
|
continue;
|
|
|
|
if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
|
|
mp = (struct lpfc_dmabuf *) (mb->context1);
|
|
if (mp) {
|
|
__lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
}
|
|
}
|
|
list_del(&mb->list);
|
|
mempool_free(mb, phba->mbox_mem_pool);
|
|
}
|
|
mb = phba->sli.mbox_active;
|
|
if (mb && (mb->vport == vport)) {
|
|
if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
|
|
(mb->u.mb.mbxCommand == MBX_REG_VPI))
|
|
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
|