mirror of https://gitee.com/openkylin/linux.git
3122 lines
85 KiB
C
3122 lines
85 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) 2009-2010 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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* *
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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/interrupt.h>
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#include <linux/mempool.h>
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#include <linux/pci.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <scsi/scsi.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/scsi_bsg_fc.h>
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#include <scsi/fc/fc_fs.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_bsg.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_logmsg.h"
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#include "lpfc_crtn.h"
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#include "lpfc_vport.h"
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#include "lpfc_version.h"
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struct lpfc_bsg_event {
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struct list_head node;
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struct kref kref;
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wait_queue_head_t wq;
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/* Event type and waiter identifiers */
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uint32_t type_mask;
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uint32_t req_id;
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uint32_t reg_id;
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/* next two flags are here for the auto-delete logic */
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unsigned long wait_time_stamp;
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int waiting;
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/* seen and not seen events */
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struct list_head events_to_get;
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struct list_head events_to_see;
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/* job waiting for this event to finish */
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struct fc_bsg_job *set_job;
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};
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struct lpfc_bsg_iocb {
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struct lpfc_iocbq *cmdiocbq;
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struct lpfc_iocbq *rspiocbq;
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struct lpfc_dmabuf *bmp;
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struct lpfc_nodelist *ndlp;
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/* job waiting for this iocb to finish */
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struct fc_bsg_job *set_job;
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};
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struct lpfc_bsg_mbox {
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LPFC_MBOXQ_t *pmboxq;
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MAILBOX_t *mb;
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/* job waiting for this mbox command to finish */
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struct fc_bsg_job *set_job;
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};
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#define MENLO_DID 0x0000FC0E
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struct lpfc_bsg_menlo {
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struct lpfc_iocbq *cmdiocbq;
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struct lpfc_iocbq *rspiocbq;
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struct lpfc_dmabuf *bmp;
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/* job waiting for this iocb to finish */
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struct fc_bsg_job *set_job;
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};
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#define TYPE_EVT 1
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#define TYPE_IOCB 2
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#define TYPE_MBOX 3
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#define TYPE_MENLO 4
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struct bsg_job_data {
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uint32_t type;
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union {
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struct lpfc_bsg_event *evt;
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struct lpfc_bsg_iocb iocb;
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struct lpfc_bsg_mbox mbox;
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struct lpfc_bsg_menlo menlo;
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} context_un;
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};
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struct event_data {
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struct list_head node;
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uint32_t type;
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uint32_t immed_dat;
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void *data;
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uint32_t len;
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};
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#define BUF_SZ_4K 4096
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#define SLI_CT_ELX_LOOPBACK 0x10
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enum ELX_LOOPBACK_CMD {
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ELX_LOOPBACK_XRI_SETUP,
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ELX_LOOPBACK_DATA,
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};
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#define ELX_LOOPBACK_HEADER_SZ \
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(size_t)(&((struct lpfc_sli_ct_request *)NULL)->un)
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struct lpfc_dmabufext {
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struct lpfc_dmabuf dma;
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uint32_t size;
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uint32_t flag;
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};
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/**
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* lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler
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* @phba: Pointer to HBA context object.
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* @cmdiocbq: Pointer to command iocb.
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* @rspiocbq: Pointer to response iocb.
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*
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* This function is the completion handler for iocbs issued using
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* lpfc_bsg_send_mgmt_cmd function. This function is called by the
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* ring event handler function without any lock held. This function
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* can be called from both worker thread context and interrupt
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* context. This function also can be called from another thread which
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* cleans up the SLI layer objects.
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* This function copies the contents of the response iocb to the
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* response iocb memory object provided by the caller of
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* lpfc_sli_issue_iocb_wait and then wakes up the thread which
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* sleeps for the iocb completion.
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**/
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static void
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lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba,
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struct lpfc_iocbq *cmdiocbq,
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struct lpfc_iocbq *rspiocbq)
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{
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unsigned long iflags;
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struct bsg_job_data *dd_data;
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struct fc_bsg_job *job;
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IOCB_t *rsp;
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struct lpfc_dmabuf *bmp;
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struct lpfc_nodelist *ndlp;
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struct lpfc_bsg_iocb *iocb;
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unsigned long flags;
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int rc = 0;
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spin_lock_irqsave(&phba->ct_ev_lock, flags);
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dd_data = cmdiocbq->context1;
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if (!dd_data) {
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spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
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return;
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}
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iocb = &dd_data->context_un.iocb;
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job = iocb->set_job;
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job->dd_data = NULL; /* so timeout handler does not reply */
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spin_lock_irqsave(&phba->hbalock, iflags);
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cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
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if (cmdiocbq->context2 && rspiocbq)
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memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
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&rspiocbq->iocb, sizeof(IOCB_t));
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spin_unlock_irqrestore(&phba->hbalock, iflags);
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bmp = iocb->bmp;
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rspiocbq = iocb->rspiocbq;
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rsp = &rspiocbq->iocb;
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ndlp = iocb->ndlp;
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pci_unmap_sg(phba->pcidev, job->request_payload.sg_list,
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job->request_payload.sg_cnt, DMA_TO_DEVICE);
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pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list,
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job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
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if (rsp->ulpStatus) {
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if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
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switch (rsp->un.ulpWord[4] & 0xff) {
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case IOERR_SEQUENCE_TIMEOUT:
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rc = -ETIMEDOUT;
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break;
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case IOERR_INVALID_RPI:
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rc = -EFAULT;
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break;
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default:
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rc = -EACCES;
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break;
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}
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} else
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rc = -EACCES;
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} else
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job->reply->reply_payload_rcv_len =
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rsp->un.genreq64.bdl.bdeSize;
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lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
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lpfc_sli_release_iocbq(phba, rspiocbq);
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lpfc_sli_release_iocbq(phba, cmdiocbq);
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lpfc_nlp_put(ndlp);
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kfree(bmp);
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kfree(dd_data);
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/* make error code available to userspace */
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job->reply->result = rc;
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/* complete the job back to userspace */
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job->job_done(job);
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spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
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return;
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}
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/**
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* lpfc_bsg_send_mgmt_cmd - send a CT command from a bsg request
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* @job: fc_bsg_job to handle
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**/
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static int
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lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job)
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{
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struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
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struct lpfc_hba *phba = vport->phba;
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struct lpfc_rport_data *rdata = job->rport->dd_data;
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struct lpfc_nodelist *ndlp = rdata->pnode;
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struct ulp_bde64 *bpl = NULL;
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uint32_t timeout;
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struct lpfc_iocbq *cmdiocbq = NULL;
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struct lpfc_iocbq *rspiocbq = NULL;
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IOCB_t *cmd;
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IOCB_t *rsp;
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struct lpfc_dmabuf *bmp = NULL;
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int request_nseg;
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int reply_nseg;
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struct scatterlist *sgel = NULL;
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int numbde;
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dma_addr_t busaddr;
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struct bsg_job_data *dd_data;
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uint32_t creg_val;
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int rc = 0;
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/* in case no data is transferred */
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job->reply->reply_payload_rcv_len = 0;
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/* allocate our bsg tracking structure */
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dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
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if (!dd_data) {
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lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
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"2733 Failed allocation of dd_data\n");
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rc = -ENOMEM;
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goto no_dd_data;
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}
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if (!lpfc_nlp_get(ndlp)) {
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rc = -ENODEV;
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goto no_ndlp;
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}
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bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
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if (!bmp) {
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rc = -ENOMEM;
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goto free_ndlp;
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}
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if (ndlp->nlp_flag & NLP_ELS_SND_MASK) {
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rc = -ENODEV;
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goto free_bmp;
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}
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cmdiocbq = lpfc_sli_get_iocbq(phba);
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if (!cmdiocbq) {
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rc = -ENOMEM;
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goto free_bmp;
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}
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cmd = &cmdiocbq->iocb;
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rspiocbq = lpfc_sli_get_iocbq(phba);
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if (!rspiocbq) {
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rc = -ENOMEM;
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goto free_cmdiocbq;
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}
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rsp = &rspiocbq->iocb;
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bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
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if (!bmp->virt) {
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rc = -ENOMEM;
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goto free_rspiocbq;
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}
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INIT_LIST_HEAD(&bmp->list);
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bpl = (struct ulp_bde64 *) bmp->virt;
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request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list,
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job->request_payload.sg_cnt, DMA_TO_DEVICE);
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for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) {
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busaddr = sg_dma_address(sgel);
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bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
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bpl->tus.f.bdeSize = sg_dma_len(sgel);
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bpl->tus.w = cpu_to_le32(bpl->tus.w);
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bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr));
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bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr));
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bpl++;
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}
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reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list,
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job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
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for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) {
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busaddr = sg_dma_address(sgel);
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bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
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bpl->tus.f.bdeSize = sg_dma_len(sgel);
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bpl->tus.w = cpu_to_le32(bpl->tus.w);
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bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr));
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bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr));
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bpl++;
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}
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cmd->un.genreq64.bdl.ulpIoTag32 = 0;
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cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
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cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
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cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
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cmd->un.genreq64.bdl.bdeSize =
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(request_nseg + reply_nseg) * sizeof(struct ulp_bde64);
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cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
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cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
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cmd->un.genreq64.w5.hcsw.Dfctl = 0;
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cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
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cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT;
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cmd->ulpBdeCount = 1;
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cmd->ulpLe = 1;
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cmd->ulpClass = CLASS3;
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cmd->ulpContext = ndlp->nlp_rpi;
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cmd->ulpOwner = OWN_CHIP;
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cmdiocbq->vport = phba->pport;
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cmdiocbq->context3 = bmp;
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cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
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timeout = phba->fc_ratov * 2;
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cmd->ulpTimeout = timeout;
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cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp;
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cmdiocbq->context1 = dd_data;
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cmdiocbq->context2 = rspiocbq;
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dd_data->type = TYPE_IOCB;
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dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
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dd_data->context_un.iocb.rspiocbq = rspiocbq;
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dd_data->context_un.iocb.set_job = job;
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dd_data->context_un.iocb.bmp = bmp;
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dd_data->context_un.iocb.ndlp = ndlp;
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if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
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creg_val = readl(phba->HCregaddr);
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creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
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writel(creg_val, phba->HCregaddr);
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readl(phba->HCregaddr); /* flush */
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}
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rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
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if (rc == IOCB_SUCCESS)
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return 0; /* done for now */
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/* iocb failed so cleanup */
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pci_unmap_sg(phba->pcidev, job->request_payload.sg_list,
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job->request_payload.sg_cnt, DMA_TO_DEVICE);
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pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list,
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job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
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lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
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free_rspiocbq:
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lpfc_sli_release_iocbq(phba, rspiocbq);
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free_cmdiocbq:
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lpfc_sli_release_iocbq(phba, cmdiocbq);
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free_bmp:
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kfree(bmp);
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free_ndlp:
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lpfc_nlp_put(ndlp);
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no_ndlp:
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kfree(dd_data);
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no_dd_data:
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/* make error code available to userspace */
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job->reply->result = rc;
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job->dd_data = NULL;
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return rc;
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}
|
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|
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/**
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* lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler
|
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* @phba: Pointer to HBA context object.
|
|
* @cmdiocbq: Pointer to command iocb.
|
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* @rspiocbq: Pointer to response iocb.
|
|
*
|
|
* This function is the completion handler for iocbs issued using
|
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* lpfc_bsg_rport_els_cmp 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 copies 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
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lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba,
|
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struct lpfc_iocbq *cmdiocbq,
|
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struct lpfc_iocbq *rspiocbq)
|
|
{
|
|
struct bsg_job_data *dd_data;
|
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struct fc_bsg_job *job;
|
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IOCB_t *rsp;
|
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struct lpfc_nodelist *ndlp;
|
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struct lpfc_dmabuf *pbuflist = NULL;
|
|
struct fc_bsg_ctels_reply *els_reply;
|
|
uint8_t *rjt_data;
|
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unsigned long flags;
|
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int rc = 0;
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
dd_data = cmdiocbq->context1;
|
|
/* normal completion and timeout crossed paths, already done */
|
|
if (!dd_data) {
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
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return;
|
|
}
|
|
|
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cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
|
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if (cmdiocbq->context2 && rspiocbq)
|
|
memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
|
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&rspiocbq->iocb, sizeof(IOCB_t));
|
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|
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job = dd_data->context_un.iocb.set_job;
|
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cmdiocbq = dd_data->context_un.iocb.cmdiocbq;
|
|
rspiocbq = dd_data->context_un.iocb.rspiocbq;
|
|
rsp = &rspiocbq->iocb;
|
|
ndlp = dd_data->context_un.iocb.ndlp;
|
|
|
|
pci_unmap_sg(phba->pcidev, job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt, DMA_TO_DEVICE);
|
|
pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
|
|
|
|
if (job->reply->result == -EAGAIN)
|
|
rc = -EAGAIN;
|
|
else if (rsp->ulpStatus == IOSTAT_SUCCESS)
|
|
job->reply->reply_payload_rcv_len =
|
|
rsp->un.elsreq64.bdl.bdeSize;
|
|
else if (rsp->ulpStatus == IOSTAT_LS_RJT) {
|
|
job->reply->reply_payload_rcv_len =
|
|
sizeof(struct fc_bsg_ctels_reply);
|
|
/* LS_RJT data returned in word 4 */
|
|
rjt_data = (uint8_t *)&rsp->un.ulpWord[4];
|
|
els_reply = &job->reply->reply_data.ctels_reply;
|
|
els_reply->status = FC_CTELS_STATUS_REJECT;
|
|
els_reply->rjt_data.action = rjt_data[3];
|
|
els_reply->rjt_data.reason_code = rjt_data[2];
|
|
els_reply->rjt_data.reason_explanation = rjt_data[1];
|
|
els_reply->rjt_data.vendor_unique = rjt_data[0];
|
|
} else
|
|
rc = -EIO;
|
|
|
|
pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3;
|
|
lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys);
|
|
lpfc_sli_release_iocbq(phba, rspiocbq);
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
lpfc_nlp_put(ndlp);
|
|
kfree(dd_data);
|
|
/* make error code available to userspace */
|
|
job->reply->result = rc;
|
|
job->dd_data = NULL;
|
|
/* complete the job back to userspace */
|
|
job->job_done(job);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_rport_els - send an ELS command from a bsg request
|
|
* @job: fc_bsg_job to handle
|
|
**/
|
|
static int
|
|
lpfc_bsg_rport_els(struct fc_bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_rport_data *rdata = job->rport->dd_data;
|
|
struct lpfc_nodelist *ndlp = rdata->pnode;
|
|
uint32_t elscmd;
|
|
uint32_t cmdsize;
|
|
uint32_t rspsize;
|
|
struct lpfc_iocbq *rspiocbq;
|
|
struct lpfc_iocbq *cmdiocbq;
|
|
IOCB_t *rsp;
|
|
uint16_t rpi = 0;
|
|
struct lpfc_dmabuf *pcmd;
|
|
struct lpfc_dmabuf *prsp;
|
|
struct lpfc_dmabuf *pbuflist = NULL;
|
|
struct ulp_bde64 *bpl;
|
|
int request_nseg;
|
|
int reply_nseg;
|
|
struct scatterlist *sgel = NULL;
|
|
int numbde;
|
|
dma_addr_t busaddr;
|
|
struct bsg_job_data *dd_data;
|
|
uint32_t creg_val;
|
|
int rc = 0;
|
|
|
|
/* in case no data is transferred */
|
|
job->reply->reply_payload_rcv_len = 0;
|
|
|
|
/* allocate our bsg tracking structure */
|
|
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (!dd_data) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2735 Failed allocation of dd_data\n");
|
|
rc = -ENOMEM;
|
|
goto no_dd_data;
|
|
}
|
|
|
|
if (!lpfc_nlp_get(ndlp)) {
|
|
rc = -ENODEV;
|
|
goto free_dd_data;
|
|
}
|
|
|
|
elscmd = job->request->rqst_data.r_els.els_code;
|
|
cmdsize = job->request_payload.payload_len;
|
|
rspsize = job->reply_payload.payload_len;
|
|
rspiocbq = lpfc_sli_get_iocbq(phba);
|
|
if (!rspiocbq) {
|
|
lpfc_nlp_put(ndlp);
|
|
rc = -ENOMEM;
|
|
goto free_dd_data;
|
|
}
|
|
|
|
rsp = &rspiocbq->iocb;
|
|
rpi = ndlp->nlp_rpi;
|
|
|
|
cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp,
|
|
ndlp->nlp_DID, elscmd);
|
|
if (!cmdiocbq) {
|
|
rc = -EIO;
|
|
goto free_rspiocbq;
|
|
}
|
|
|
|
/* prep els iocb set context1 to the ndlp, context2 to the command
|
|
* dmabuf, context3 holds the data dmabuf
|
|
*/
|
|
pcmd = (struct lpfc_dmabuf *) cmdiocbq->context2;
|
|
prsp = (struct lpfc_dmabuf *) pcmd->list.next;
|
|
lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
|
|
kfree(pcmd);
|
|
lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
|
|
kfree(prsp);
|
|
cmdiocbq->context2 = NULL;
|
|
|
|
pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3;
|
|
bpl = (struct ulp_bde64 *) pbuflist->virt;
|
|
|
|
request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt, DMA_TO_DEVICE);
|
|
for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) {
|
|
busaddr = sg_dma_address(sgel);
|
|
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
|
|
bpl->tus.f.bdeSize = sg_dma_len(sgel);
|
|
bpl->tus.w = cpu_to_le32(bpl->tus.w);
|
|
bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr));
|
|
bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr));
|
|
bpl++;
|
|
}
|
|
|
|
reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
|
|
for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) {
|
|
busaddr = sg_dma_address(sgel);
|
|
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
|
|
bpl->tus.f.bdeSize = sg_dma_len(sgel);
|
|
bpl->tus.w = cpu_to_le32(bpl->tus.w);
|
|
bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr));
|
|
bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr));
|
|
bpl++;
|
|
}
|
|
cmdiocbq->iocb.un.elsreq64.bdl.bdeSize =
|
|
(request_nseg + reply_nseg) * sizeof(struct ulp_bde64);
|
|
cmdiocbq->iocb.ulpContext = rpi;
|
|
cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
|
|
cmdiocbq->context1 = NULL;
|
|
cmdiocbq->context2 = NULL;
|
|
|
|
cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp;
|
|
cmdiocbq->context1 = dd_data;
|
|
cmdiocbq->context2 = rspiocbq;
|
|
dd_data->type = TYPE_IOCB;
|
|
dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
|
|
dd_data->context_un.iocb.rspiocbq = rspiocbq;
|
|
dd_data->context_un.iocb.set_job = job;
|
|
dd_data->context_un.iocb.bmp = NULL;;
|
|
dd_data->context_un.iocb.ndlp = ndlp;
|
|
|
|
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 */
|
|
}
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
|
|
lpfc_nlp_put(ndlp);
|
|
if (rc == IOCB_SUCCESS)
|
|
return 0; /* done for now */
|
|
|
|
pci_unmap_sg(phba->pcidev, job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt, DMA_TO_DEVICE);
|
|
pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
|
|
|
|
lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys);
|
|
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
|
|
free_rspiocbq:
|
|
lpfc_sli_release_iocbq(phba, rspiocbq);
|
|
|
|
free_dd_data:
|
|
kfree(dd_data);
|
|
|
|
no_dd_data:
|
|
/* make error code available to userspace */
|
|
job->reply->result = rc;
|
|
job->dd_data = NULL;
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_event_free - frees an allocated event structure
|
|
* @kref: Pointer to a kref.
|
|
*
|
|
* Called from kref_put. Back cast the kref into an event structure address.
|
|
* Free any events to get, delete associated nodes, free any events to see,
|
|
* free any data then free the event itself.
|
|
**/
|
|
static void
|
|
lpfc_bsg_event_free(struct kref *kref)
|
|
{
|
|
struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event,
|
|
kref);
|
|
struct event_data *ed;
|
|
|
|
list_del(&evt->node);
|
|
|
|
while (!list_empty(&evt->events_to_get)) {
|
|
ed = list_entry(evt->events_to_get.next, typeof(*ed), node);
|
|
list_del(&ed->node);
|
|
kfree(ed->data);
|
|
kfree(ed);
|
|
}
|
|
|
|
while (!list_empty(&evt->events_to_see)) {
|
|
ed = list_entry(evt->events_to_see.next, typeof(*ed), node);
|
|
list_del(&ed->node);
|
|
kfree(ed->data);
|
|
kfree(ed);
|
|
}
|
|
|
|
kfree(evt);
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_event_ref - increments the kref for an event
|
|
* @evt: Pointer to an event structure.
|
|
**/
|
|
static inline void
|
|
lpfc_bsg_event_ref(struct lpfc_bsg_event *evt)
|
|
{
|
|
kref_get(&evt->kref);
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_event_unref - Uses kref_put to free an event structure
|
|
* @evt: Pointer to an event structure.
|
|
**/
|
|
static inline void
|
|
lpfc_bsg_event_unref(struct lpfc_bsg_event *evt)
|
|
{
|
|
kref_put(&evt->kref, lpfc_bsg_event_free);
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_event_new - allocate and initialize a event structure
|
|
* @ev_mask: Mask of events.
|
|
* @ev_reg_id: Event reg id.
|
|
* @ev_req_id: Event request id.
|
|
**/
|
|
static struct lpfc_bsg_event *
|
|
lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id)
|
|
{
|
|
struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL);
|
|
|
|
if (!evt)
|
|
return NULL;
|
|
|
|
INIT_LIST_HEAD(&evt->events_to_get);
|
|
INIT_LIST_HEAD(&evt->events_to_see);
|
|
evt->type_mask = ev_mask;
|
|
evt->req_id = ev_req_id;
|
|
evt->reg_id = ev_reg_id;
|
|
evt->wait_time_stamp = jiffies;
|
|
init_waitqueue_head(&evt->wq);
|
|
kref_init(&evt->kref);
|
|
return evt;
|
|
}
|
|
|
|
/**
|
|
* diag_cmd_data_free - Frees an lpfc dma buffer extension
|
|
* @phba: Pointer to HBA context object.
|
|
* @mlist: Pointer to an lpfc dma buffer extension.
|
|
**/
|
|
static int
|
|
diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist)
|
|
{
|
|
struct lpfc_dmabufext *mlast;
|
|
struct pci_dev *pcidev;
|
|
struct list_head head, *curr, *next;
|
|
|
|
if ((!mlist) || (!lpfc_is_link_up(phba) &&
|
|
(phba->link_flag & LS_LOOPBACK_MODE))) {
|
|
return 0;
|
|
}
|
|
|
|
pcidev = phba->pcidev;
|
|
list_add_tail(&head, &mlist->dma.list);
|
|
|
|
list_for_each_safe(curr, next, &head) {
|
|
mlast = list_entry(curr, struct lpfc_dmabufext , dma.list);
|
|
if (mlast->dma.virt)
|
|
dma_free_coherent(&pcidev->dev,
|
|
mlast->size,
|
|
mlast->dma.virt,
|
|
mlast->dma.phys);
|
|
kfree(mlast);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_ct_unsol_event - process an unsolicited CT command
|
|
* @phba:
|
|
* @pring:
|
|
* @piocbq:
|
|
*
|
|
* This function is called when an unsolicited CT command is received. It
|
|
* forwards the event to any processes registered to receive CT events.
|
|
**/
|
|
int
|
|
lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
|
|
struct lpfc_iocbq *piocbq)
|
|
{
|
|
uint32_t evt_req_id = 0;
|
|
uint32_t cmd;
|
|
uint32_t len;
|
|
struct lpfc_dmabuf *dmabuf = NULL;
|
|
struct lpfc_bsg_event *evt;
|
|
struct event_data *evt_dat = NULL;
|
|
struct lpfc_iocbq *iocbq;
|
|
size_t offset = 0;
|
|
struct list_head head;
|
|
struct ulp_bde64 *bde;
|
|
dma_addr_t dma_addr;
|
|
int i;
|
|
struct lpfc_dmabuf *bdeBuf1 = piocbq->context2;
|
|
struct lpfc_dmabuf *bdeBuf2 = piocbq->context3;
|
|
struct lpfc_hbq_entry *hbqe;
|
|
struct lpfc_sli_ct_request *ct_req;
|
|
struct fc_bsg_job *job = NULL;
|
|
unsigned long flags;
|
|
int size = 0;
|
|
|
|
INIT_LIST_HEAD(&head);
|
|
list_add_tail(&head, &piocbq->list);
|
|
|
|
if (piocbq->iocb.ulpBdeCount == 0 ||
|
|
piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0)
|
|
goto error_ct_unsol_exit;
|
|
|
|
if (phba->link_state == LPFC_HBA_ERROR ||
|
|
(!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)))
|
|
goto error_ct_unsol_exit;
|
|
|
|
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
|
|
dmabuf = bdeBuf1;
|
|
else {
|
|
dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh,
|
|
piocbq->iocb.un.cont64[0].addrLow);
|
|
dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr);
|
|
}
|
|
if (dmabuf == NULL)
|
|
goto error_ct_unsol_exit;
|
|
ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt;
|
|
evt_req_id = ct_req->FsType;
|
|
cmd = ct_req->CommandResponse.bits.CmdRsp;
|
|
len = ct_req->CommandResponse.bits.Size;
|
|
if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
|
|
lpfc_sli_ringpostbuf_put(phba, pring, dmabuf);
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
|
|
if (!(evt->type_mask & FC_REG_CT_EVENT) ||
|
|
evt->req_id != evt_req_id)
|
|
continue;
|
|
|
|
lpfc_bsg_event_ref(evt);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL);
|
|
if (evt_dat == NULL) {
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
lpfc_bsg_event_unref(evt);
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2614 Memory allocation failed for "
|
|
"CT event\n");
|
|
break;
|
|
}
|
|
|
|
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
|
|
/* take accumulated byte count from the last iocbq */
|
|
iocbq = list_entry(head.prev, typeof(*iocbq), list);
|
|
evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len;
|
|
} else {
|
|
list_for_each_entry(iocbq, &head, list) {
|
|
for (i = 0; i < iocbq->iocb.ulpBdeCount; i++)
|
|
evt_dat->len +=
|
|
iocbq->iocb.un.cont64[i].tus.f.bdeSize;
|
|
}
|
|
}
|
|
|
|
evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL);
|
|
if (evt_dat->data == NULL) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2615 Memory allocation failed for "
|
|
"CT event data, size %d\n",
|
|
evt_dat->len);
|
|
kfree(evt_dat);
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
lpfc_bsg_event_unref(evt);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
goto error_ct_unsol_exit;
|
|
}
|
|
|
|
list_for_each_entry(iocbq, &head, list) {
|
|
size = 0;
|
|
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
|
|
bdeBuf1 = iocbq->context2;
|
|
bdeBuf2 = iocbq->context3;
|
|
}
|
|
for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) {
|
|
if (phba->sli3_options &
|
|
LPFC_SLI3_HBQ_ENABLED) {
|
|
if (i == 0) {
|
|
hbqe = (struct lpfc_hbq_entry *)
|
|
&iocbq->iocb.un.ulpWord[0];
|
|
size = hbqe->bde.tus.f.bdeSize;
|
|
dmabuf = bdeBuf1;
|
|
} else if (i == 1) {
|
|
hbqe = (struct lpfc_hbq_entry *)
|
|
&iocbq->iocb.unsli3.
|
|
sli3Words[4];
|
|
size = hbqe->bde.tus.f.bdeSize;
|
|
dmabuf = bdeBuf2;
|
|
}
|
|
if ((offset + size) > evt_dat->len)
|
|
size = evt_dat->len - offset;
|
|
} else {
|
|
size = iocbq->iocb.un.cont64[i].
|
|
tus.f.bdeSize;
|
|
bde = &iocbq->iocb.un.cont64[i];
|
|
dma_addr = getPaddr(bde->addrHigh,
|
|
bde->addrLow);
|
|
dmabuf = lpfc_sli_ringpostbuf_get(phba,
|
|
pring, dma_addr);
|
|
}
|
|
if (!dmabuf) {
|
|
lpfc_printf_log(phba, KERN_ERR,
|
|
LOG_LIBDFC, "2616 No dmabuf "
|
|
"found for iocbq 0x%p\n",
|
|
iocbq);
|
|
kfree(evt_dat->data);
|
|
kfree(evt_dat);
|
|
spin_lock_irqsave(&phba->ct_ev_lock,
|
|
flags);
|
|
lpfc_bsg_event_unref(evt);
|
|
spin_unlock_irqrestore(
|
|
&phba->ct_ev_lock, flags);
|
|
goto error_ct_unsol_exit;
|
|
}
|
|
memcpy((char *)(evt_dat->data) + offset,
|
|
dmabuf->virt, size);
|
|
offset += size;
|
|
if (evt_req_id != SLI_CT_ELX_LOOPBACK &&
|
|
!(phba->sli3_options &
|
|
LPFC_SLI3_HBQ_ENABLED)) {
|
|
lpfc_sli_ringpostbuf_put(phba, pring,
|
|
dmabuf);
|
|
} else {
|
|
switch (cmd) {
|
|
case ELX_LOOPBACK_DATA:
|
|
diag_cmd_data_free(phba,
|
|
(struct lpfc_dmabufext *)
|
|
dmabuf);
|
|
break;
|
|
case ELX_LOOPBACK_XRI_SETUP:
|
|
if ((phba->sli_rev ==
|
|
LPFC_SLI_REV2) ||
|
|
(phba->sli3_options &
|
|
LPFC_SLI3_HBQ_ENABLED
|
|
)) {
|
|
lpfc_in_buf_free(phba,
|
|
dmabuf);
|
|
} else {
|
|
lpfc_post_buffer(phba,
|
|
pring,
|
|
1);
|
|
}
|
|
break;
|
|
default:
|
|
if (!(phba->sli3_options &
|
|
LPFC_SLI3_HBQ_ENABLED))
|
|
lpfc_post_buffer(phba,
|
|
pring,
|
|
1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
evt_dat->immed_dat = phba->ctx_idx;
|
|
phba->ctx_idx = (phba->ctx_idx + 1) % 64;
|
|
phba->ct_ctx[evt_dat->immed_dat].oxid =
|
|
piocbq->iocb.ulpContext;
|
|
phba->ct_ctx[evt_dat->immed_dat].SID =
|
|
piocbq->iocb.un.rcvels.remoteID;
|
|
} else
|
|
evt_dat->immed_dat = piocbq->iocb.ulpContext;
|
|
|
|
evt_dat->type = FC_REG_CT_EVENT;
|
|
list_add(&evt_dat->node, &evt->events_to_see);
|
|
if (evt_req_id == SLI_CT_ELX_LOOPBACK) {
|
|
wake_up_interruptible(&evt->wq);
|
|
lpfc_bsg_event_unref(evt);
|
|
break;
|
|
}
|
|
|
|
list_move(evt->events_to_see.prev, &evt->events_to_get);
|
|
lpfc_bsg_event_unref(evt);
|
|
|
|
job = evt->set_job;
|
|
evt->set_job = NULL;
|
|
if (job) {
|
|
job->reply->reply_payload_rcv_len = size;
|
|
/* make error code available to userspace */
|
|
job->reply->result = 0;
|
|
job->dd_data = NULL;
|
|
/* complete the job back to userspace */
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
job->job_done(job);
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
error_ct_unsol_exit:
|
|
if (!list_empty(&head))
|
|
list_del(&head);
|
|
if (evt_req_id == SLI_CT_ELX_LOOPBACK)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command
|
|
* @job: SET_EVENT fc_bsg_job
|
|
**/
|
|
static int
|
|
lpfc_bsg_hba_set_event(struct fc_bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct set_ct_event *event_req;
|
|
struct lpfc_bsg_event *evt;
|
|
int rc = 0;
|
|
struct bsg_job_data *dd_data = NULL;
|
|
uint32_t ev_mask;
|
|
unsigned long flags;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2612 Received SET_CT_EVENT below minimum "
|
|
"size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (dd_data == NULL) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2734 Failed allocation of dd_data\n");
|
|
rc = -ENOMEM;
|
|
goto job_error;
|
|
}
|
|
|
|
event_req = (struct set_ct_event *)
|
|
job->request->rqst_data.h_vendor.vendor_cmd;
|
|
ev_mask = ((uint32_t)(unsigned long)event_req->type_mask &
|
|
FC_REG_EVENT_MASK);
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
|
|
if (evt->reg_id == event_req->ev_reg_id) {
|
|
lpfc_bsg_event_ref(evt);
|
|
evt->wait_time_stamp = jiffies;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
if (&evt->node == &phba->ct_ev_waiters) {
|
|
/* no event waiting struct yet - first call */
|
|
evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id,
|
|
event_req->ev_req_id);
|
|
if (!evt) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2617 Failed allocation of event "
|
|
"waiter\n");
|
|
rc = -ENOMEM;
|
|
goto job_error;
|
|
}
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_add(&evt->node, &phba->ct_ev_waiters);
|
|
lpfc_bsg_event_ref(evt);
|
|
evt->wait_time_stamp = jiffies;
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
}
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
evt->waiting = 1;
|
|
dd_data->type = TYPE_EVT;
|
|
dd_data->context_un.evt = evt;
|
|
evt->set_job = job; /* for unsolicited command */
|
|
job->dd_data = dd_data; /* for fc transport timeout callback*/
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
return 0; /* call job done later */
|
|
|
|
job_error:
|
|
if (dd_data != NULL)
|
|
kfree(dd_data);
|
|
|
|
job->dd_data = NULL;
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command
|
|
* @job: GET_EVENT fc_bsg_job
|
|
**/
|
|
static int
|
|
lpfc_bsg_hba_get_event(struct fc_bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct get_ct_event *event_req;
|
|
struct get_ct_event_reply *event_reply;
|
|
struct lpfc_bsg_event *evt;
|
|
struct event_data *evt_dat = NULL;
|
|
unsigned long flags;
|
|
uint32_t rc = 0;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2613 Received GET_CT_EVENT request below "
|
|
"minimum size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
event_req = (struct get_ct_event *)
|
|
job->request->rqst_data.h_vendor.vendor_cmd;
|
|
|
|
event_reply = (struct get_ct_event_reply *)
|
|
job->reply->reply_data.vendor_reply.vendor_rsp;
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
|
|
if (evt->reg_id == event_req->ev_reg_id) {
|
|
if (list_empty(&evt->events_to_get))
|
|
break;
|
|
lpfc_bsg_event_ref(evt);
|
|
evt->wait_time_stamp = jiffies;
|
|
evt_dat = list_entry(evt->events_to_get.prev,
|
|
struct event_data, node);
|
|
list_del(&evt_dat->node);
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
/* The app may continue to ask for event data until it gets
|
|
* an error indicating that there isn't anymore
|
|
*/
|
|
if (evt_dat == NULL) {
|
|
job->reply->reply_payload_rcv_len = 0;
|
|
rc = -ENOENT;
|
|
goto job_error;
|
|
}
|
|
|
|
if (evt_dat->len > job->request_payload.payload_len) {
|
|
evt_dat->len = job->request_payload.payload_len;
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2618 Truncated event data at %d "
|
|
"bytes\n",
|
|
job->request_payload.payload_len);
|
|
}
|
|
|
|
event_reply->type = evt_dat->type;
|
|
event_reply->immed_data = evt_dat->immed_dat;
|
|
if (evt_dat->len > 0)
|
|
job->reply->reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt,
|
|
evt_dat->data, evt_dat->len);
|
|
else
|
|
job->reply->reply_payload_rcv_len = 0;
|
|
|
|
if (evt_dat) {
|
|
kfree(evt_dat->data);
|
|
kfree(evt_dat);
|
|
}
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
lpfc_bsg_event_unref(evt);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
job->dd_data = NULL;
|
|
job->reply->result = 0;
|
|
job->job_done(job);
|
|
return 0;
|
|
|
|
job_error:
|
|
job->dd_data = NULL;
|
|
job->reply->result = rc;
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp'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_issue_ct_rsp_cmp 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_issue_ct_rsp_cmp(struct lpfc_hba *phba,
|
|
struct lpfc_iocbq *cmdiocbq,
|
|
struct lpfc_iocbq *rspiocbq)
|
|
{
|
|
struct bsg_job_data *dd_data;
|
|
struct fc_bsg_job *job;
|
|
IOCB_t *rsp;
|
|
struct lpfc_dmabuf *bmp;
|
|
struct lpfc_nodelist *ndlp;
|
|
unsigned long flags;
|
|
int rc = 0;
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
dd_data = cmdiocbq->context1;
|
|
/* normal completion and timeout crossed paths, already done */
|
|
if (!dd_data) {
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
return;
|
|
}
|
|
|
|
job = dd_data->context_un.iocb.set_job;
|
|
bmp = dd_data->context_un.iocb.bmp;
|
|
rsp = &rspiocbq->iocb;
|
|
ndlp = dd_data->context_un.iocb.ndlp;
|
|
|
|
pci_unmap_sg(phba->pcidev, job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt, DMA_TO_DEVICE);
|
|
|
|
if (rsp->ulpStatus) {
|
|
if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
|
|
switch (rsp->un.ulpWord[4] & 0xff) {
|
|
case IOERR_SEQUENCE_TIMEOUT:
|
|
rc = -ETIMEDOUT;
|
|
break;
|
|
case IOERR_INVALID_RPI:
|
|
rc = -EFAULT;
|
|
break;
|
|
default:
|
|
rc = -EACCES;
|
|
break;
|
|
}
|
|
} else
|
|
rc = -EACCES;
|
|
} else
|
|
job->reply->reply_payload_rcv_len =
|
|
rsp->un.genreq64.bdl.bdeSize;
|
|
|
|
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
lpfc_nlp_put(ndlp);
|
|
kfree(bmp);
|
|
kfree(dd_data);
|
|
/* make error code available to userspace */
|
|
job->reply->result = rc;
|
|
job->dd_data = NULL;
|
|
/* complete the job back to userspace */
|
|
job->job_done(job);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_issue_ct_rsp - issue a ct response
|
|
* @phba: Pointer to HBA context object.
|
|
* @job: Pointer to the job object.
|
|
* @tag: tag index value into the ports context exchange array.
|
|
* @bmp: Pointer to a dma buffer descriptor.
|
|
* @num_entry: Number of enties in the bde.
|
|
**/
|
|
static int
|
|
lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag,
|
|
struct lpfc_dmabuf *bmp, int num_entry)
|
|
{
|
|
IOCB_t *icmd;
|
|
struct lpfc_iocbq *ctiocb = NULL;
|
|
int rc = 0;
|
|
struct lpfc_nodelist *ndlp = NULL;
|
|
struct bsg_job_data *dd_data;
|
|
uint32_t creg_val;
|
|
|
|
/* allocate our bsg tracking structure */
|
|
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (!dd_data) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2736 Failed allocation of dd_data\n");
|
|
rc = -ENOMEM;
|
|
goto no_dd_data;
|
|
}
|
|
|
|
/* Allocate buffer for command iocb */
|
|
ctiocb = lpfc_sli_get_iocbq(phba);
|
|
if (!ctiocb) {
|
|
rc = ENOMEM;
|
|
goto no_ctiocb;
|
|
}
|
|
|
|
icmd = &ctiocb->iocb;
|
|
icmd->un.xseq64.bdl.ulpIoTag32 = 0;
|
|
icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
|
|
icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys);
|
|
icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
|
|
icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64));
|
|
icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA);
|
|
icmd->un.xseq64.w5.hcsw.Dfctl = 0;
|
|
icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL;
|
|
icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
|
|
|
|
/* Fill in rest of iocb */
|
|
icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
|
|
icmd->ulpBdeCount = 1;
|
|
icmd->ulpLe = 1;
|
|
icmd->ulpClass = CLASS3;
|
|
if (phba->sli_rev == LPFC_SLI_REV4) {
|
|
/* Do not issue unsol response if oxid not marked as valid */
|
|
if (!(phba->ct_ctx[tag].flags & UNSOL_VALID)) {
|
|
rc = IOCB_ERROR;
|
|
goto issue_ct_rsp_exit;
|
|
}
|
|
icmd->ulpContext = phba->ct_ctx[tag].oxid;
|
|
ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID);
|
|
if (!ndlp) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
|
|
"2721 ndlp null for oxid %x SID %x\n",
|
|
icmd->ulpContext,
|
|
phba->ct_ctx[tag].SID);
|
|
rc = IOCB_ERROR;
|
|
goto issue_ct_rsp_exit;
|
|
}
|
|
icmd->un.ulpWord[3] = ndlp->nlp_rpi;
|
|
/* The exchange is done, mark the entry as invalid */
|
|
phba->ct_ctx[tag].flags &= ~UNSOL_VALID;
|
|
} else
|
|
icmd->ulpContext = (ushort) tag;
|
|
|
|
icmd->ulpTimeout = phba->fc_ratov * 2;
|
|
|
|
/* Xmit CT response on exchange <xid> */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
|
|
"2722 Xmit CT response on exchange x%x Data: x%x x%x\n",
|
|
icmd->ulpContext, icmd->ulpIoTag, phba->link_state);
|
|
|
|
ctiocb->iocb_cmpl = NULL;
|
|
ctiocb->iocb_flag |= LPFC_IO_LIBDFC;
|
|
ctiocb->vport = phba->pport;
|
|
ctiocb->context3 = bmp;
|
|
|
|
ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp;
|
|
ctiocb->context1 = dd_data;
|
|
ctiocb->context2 = NULL;
|
|
dd_data->type = TYPE_IOCB;
|
|
dd_data->context_un.iocb.cmdiocbq = ctiocb;
|
|
dd_data->context_un.iocb.rspiocbq = NULL;
|
|
dd_data->context_un.iocb.set_job = job;
|
|
dd_data->context_un.iocb.bmp = bmp;
|
|
dd_data->context_un.iocb.ndlp = ndlp;
|
|
|
|
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 */
|
|
}
|
|
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
|
|
|
|
if (rc == IOCB_SUCCESS)
|
|
return 0; /* done for now */
|
|
|
|
issue_ct_rsp_exit:
|
|
lpfc_sli_release_iocbq(phba, ctiocb);
|
|
no_ctiocb:
|
|
kfree(dd_data);
|
|
no_dd_data:
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command
|
|
* @job: SEND_MGMT_RESP fc_bsg_job
|
|
**/
|
|
static int
|
|
lpfc_bsg_send_mgmt_rsp(struct fc_bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *)
|
|
job->request->rqst_data.h_vendor.vendor_cmd;
|
|
struct ulp_bde64 *bpl;
|
|
struct lpfc_dmabuf *bmp = NULL;
|
|
struct scatterlist *sgel = NULL;
|
|
int request_nseg;
|
|
int numbde;
|
|
dma_addr_t busaddr;
|
|
uint32_t tag = mgmt_resp->tag;
|
|
unsigned long reqbfrcnt =
|
|
(unsigned long)job->request_payload.payload_len;
|
|
int rc = 0;
|
|
|
|
/* in case no data is transferred */
|
|
job->reply->reply_payload_rcv_len = 0;
|
|
|
|
if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) {
|
|
rc = -ERANGE;
|
|
goto send_mgmt_rsp_exit;
|
|
}
|
|
|
|
bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
if (!bmp) {
|
|
rc = -ENOMEM;
|
|
goto send_mgmt_rsp_exit;
|
|
}
|
|
|
|
bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
|
|
if (!bmp->virt) {
|
|
rc = -ENOMEM;
|
|
goto send_mgmt_rsp_free_bmp;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&bmp->list);
|
|
bpl = (struct ulp_bde64 *) bmp->virt;
|
|
request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt, DMA_TO_DEVICE);
|
|
for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) {
|
|
busaddr = sg_dma_address(sgel);
|
|
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
|
|
bpl->tus.f.bdeSize = sg_dma_len(sgel);
|
|
bpl->tus.w = cpu_to_le32(bpl->tus.w);
|
|
bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr));
|
|
bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr));
|
|
bpl++;
|
|
}
|
|
|
|
rc = lpfc_issue_ct_rsp(phba, job, tag, bmp, request_nseg);
|
|
|
|
if (rc == IOCB_SUCCESS)
|
|
return 0; /* done for now */
|
|
|
|
/* TBD need to handle a timeout */
|
|
pci_unmap_sg(phba->pcidev, job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt, DMA_TO_DEVICE);
|
|
rc = -EACCES;
|
|
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
|
|
|
|
send_mgmt_rsp_free_bmp:
|
|
kfree(bmp);
|
|
send_mgmt_rsp_exit:
|
|
/* make error code available to userspace */
|
|
job->reply->result = rc;
|
|
job->dd_data = NULL;
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_diag_mode - process a LPFC_BSG_VENDOR_DIAG_MODE bsg vendor command
|
|
* @job: LPFC_BSG_VENDOR_DIAG_MODE
|
|
*
|
|
* This function is responsible for placing a port into diagnostic loopback
|
|
* mode in order to perform a diagnostic loopback test.
|
|
* All new scsi requests are blocked, a small delay is used to allow the
|
|
* scsi requests to complete then the link is brought down. If the link is
|
|
* is placed in loopback mode then scsi requests are again allowed
|
|
* so the scsi mid-layer doesn't give up on the port.
|
|
* All of this is done in-line.
|
|
*/
|
|
static int
|
|
lpfc_bsg_diag_mode(struct fc_bsg_job *job)
|
|
{
|
|
struct Scsi_Host *shost = job->shost;
|
|
struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct diag_mode_set *loopback_mode;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING];
|
|
uint32_t link_flags;
|
|
uint32_t timeout;
|
|
struct lpfc_vport **vports;
|
|
LPFC_MBOXQ_t *pmboxq;
|
|
int mbxstatus;
|
|
int i = 0;
|
|
int rc = 0;
|
|
|
|
/* no data to return just the return code */
|
|
job->reply->reply_payload_rcv_len = 0;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_set)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2738 Received DIAG MODE request below minimum "
|
|
"size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
loopback_mode = (struct diag_mode_set *)
|
|
job->request->rqst_data.h_vendor.vendor_cmd;
|
|
link_flags = loopback_mode->type;
|
|
timeout = loopback_mode->timeout;
|
|
|
|
if ((phba->link_state == LPFC_HBA_ERROR) ||
|
|
(psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
|
|
(!(psli->sli_flag & LPFC_SLI_ACTIVE))) {
|
|
rc = -EACCES;
|
|
goto job_error;
|
|
}
|
|
|
|
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmboxq) {
|
|
rc = -ENOMEM;
|
|
goto job_error;
|
|
}
|
|
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports) {
|
|
for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
|
|
shost = lpfc_shost_from_vport(vports[i]);
|
|
scsi_block_requests(shost);
|
|
}
|
|
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
} else {
|
|
shost = lpfc_shost_from_vport(phba->pport);
|
|
scsi_block_requests(shost);
|
|
}
|
|
|
|
while (pring->txcmplq_cnt) {
|
|
if (i++ > 500) /* wait up to 5 seconds */
|
|
break;
|
|
|
|
msleep(10);
|
|
}
|
|
|
|
memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
|
|
pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
|
|
pmboxq->u.mb.mbxOwner = OWN_HOST;
|
|
|
|
mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
|
|
|
|
if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) {
|
|
/* wait for link down before proceeding */
|
|
i = 0;
|
|
while (phba->link_state != LPFC_LINK_DOWN) {
|
|
if (i++ > timeout) {
|
|
rc = -ETIMEDOUT;
|
|
goto loopback_mode_exit;
|
|
}
|
|
|
|
msleep(10);
|
|
}
|
|
|
|
memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
|
|
if (link_flags == INTERNAL_LOOP_BACK)
|
|
pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
|
|
else
|
|
pmboxq->u.mb.un.varInitLnk.link_flags =
|
|
FLAGS_TOPOLOGY_MODE_LOOP;
|
|
|
|
pmboxq->u.mb.mbxCommand = MBX_INIT_LINK;
|
|
pmboxq->u.mb.mbxOwner = OWN_HOST;
|
|
|
|
mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
|
|
LPFC_MBOX_TMO);
|
|
|
|
if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus))
|
|
rc = -ENODEV;
|
|
else {
|
|
phba->link_flag |= LS_LOOPBACK_MODE;
|
|
/* wait for the link attention interrupt */
|
|
msleep(100);
|
|
|
|
i = 0;
|
|
while (phba->link_state != LPFC_HBA_READY) {
|
|
if (i++ > timeout) {
|
|
rc = -ETIMEDOUT;
|
|
break;
|
|
}
|
|
|
|
msleep(10);
|
|
}
|
|
}
|
|
|
|
} else
|
|
rc = -ENODEV;
|
|
|
|
loopback_mode_exit:
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports) {
|
|
for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
|
|
shost = lpfc_shost_from_vport(vports[i]);
|
|
scsi_unblock_requests(shost);
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
} else {
|
|
shost = lpfc_shost_from_vport(phba->pport);
|
|
scsi_unblock_requests(shost);
|
|
}
|
|
|
|
/*
|
|
* Let SLI layer release mboxq if mbox command completed after timeout.
|
|
*/
|
|
if (mbxstatus != MBX_TIMEOUT)
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
|
|
job_error:
|
|
/* make error code available to userspace */
|
|
job->reply->result = rc;
|
|
/* complete the job back to userspace if no error */
|
|
if (rc == 0)
|
|
job->job_done(job);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfcdiag_loop_self_reg - obtains a remote port login id
|
|
* @phba: Pointer to HBA context object
|
|
* @rpi: Pointer to a remote port login id
|
|
*
|
|
* This function obtains a remote port login id so the diag loopback test
|
|
* can send and receive its own unsolicited CT command.
|
|
**/
|
|
static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t * rpi)
|
|
{
|
|
LPFC_MBOXQ_t *mbox;
|
|
struct lpfc_dmabuf *dmabuff;
|
|
int status;
|
|
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!mbox)
|
|
return ENOMEM;
|
|
|
|
status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID,
|
|
(uint8_t *)&phba->pport->fc_sparam, mbox, 0);
|
|
if (status) {
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return ENOMEM;
|
|
}
|
|
|
|
dmabuff = (struct lpfc_dmabuf *) mbox->context1;
|
|
mbox->context1 = NULL;
|
|
status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
|
|
|
|
if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
|
|
lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
|
|
kfree(dmabuff);
|
|
if (status != MBX_TIMEOUT)
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return ENODEV;
|
|
}
|
|
|
|
*rpi = mbox->u.mb.un.varWords[0];
|
|
|
|
lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
|
|
kfree(dmabuff);
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfcdiag_loop_self_unreg - unregs from the rpi
|
|
* @phba: Pointer to HBA context object
|
|
* @rpi: Remote port login id
|
|
*
|
|
* This function unregisters the rpi obtained in lpfcdiag_loop_self_reg
|
|
**/
|
|
static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi)
|
|
{
|
|
LPFC_MBOXQ_t *mbox;
|
|
int status;
|
|
|
|
/* Allocate mboxq structure */
|
|
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (mbox == NULL)
|
|
return ENOMEM;
|
|
|
|
lpfc_unreg_login(phba, 0, rpi, mbox);
|
|
status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
|
|
|
|
if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
|
|
if (status != MBX_TIMEOUT)
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return EIO;
|
|
}
|
|
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfcdiag_loop_get_xri - obtains the transmit and receive ids
|
|
* @phba: Pointer to HBA context object
|
|
* @rpi: Remote port login id
|
|
* @txxri: Pointer to transmit exchange id
|
|
* @rxxri: Pointer to response exchabge id
|
|
*
|
|
* This function obtains the transmit and receive ids required to send
|
|
* an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp
|
|
* flags are used to the unsolicted response handler is able to process
|
|
* the ct command sent on the same port.
|
|
**/
|
|
static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi,
|
|
uint16_t *txxri, uint16_t * rxxri)
|
|
{
|
|
struct lpfc_bsg_event *evt;
|
|
struct lpfc_iocbq *cmdiocbq, *rspiocbq;
|
|
IOCB_t *cmd, *rsp;
|
|
struct lpfc_dmabuf *dmabuf;
|
|
struct ulp_bde64 *bpl = NULL;
|
|
struct lpfc_sli_ct_request *ctreq = NULL;
|
|
int ret_val = 0;
|
|
unsigned long flags;
|
|
|
|
*txxri = 0;
|
|
*rxxri = 0;
|
|
evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
|
|
SLI_CT_ELX_LOOPBACK);
|
|
if (!evt)
|
|
return ENOMEM;
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_add(&evt->node, &phba->ct_ev_waiters);
|
|
lpfc_bsg_event_ref(evt);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
cmdiocbq = lpfc_sli_get_iocbq(phba);
|
|
rspiocbq = lpfc_sli_get_iocbq(phba);
|
|
|
|
dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
if (dmabuf) {
|
|
dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys);
|
|
INIT_LIST_HEAD(&dmabuf->list);
|
|
bpl = (struct ulp_bde64 *) dmabuf->virt;
|
|
memset(bpl, 0, sizeof(*bpl));
|
|
ctreq = (struct lpfc_sli_ct_request *)(bpl + 1);
|
|
bpl->addrHigh =
|
|
le32_to_cpu(putPaddrHigh(dmabuf->phys + sizeof(*bpl)));
|
|
bpl->addrLow =
|
|
le32_to_cpu(putPaddrLow(dmabuf->phys + sizeof(*bpl)));
|
|
bpl->tus.f.bdeFlags = 0;
|
|
bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ;
|
|
bpl->tus.w = le32_to_cpu(bpl->tus.w);
|
|
}
|
|
|
|
if (cmdiocbq == NULL || rspiocbq == NULL ||
|
|
dmabuf == NULL || bpl == NULL || ctreq == NULL) {
|
|
ret_val = ENOMEM;
|
|
goto err_get_xri_exit;
|
|
}
|
|
|
|
cmd = &cmdiocbq->iocb;
|
|
rsp = &rspiocbq->iocb;
|
|
|
|
memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
|
|
|
|
ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
|
|
ctreq->RevisionId.bits.InId = 0;
|
|
ctreq->FsType = SLI_CT_ELX_LOOPBACK;
|
|
ctreq->FsSubType = 0;
|
|
ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP;
|
|
ctreq->CommandResponse.bits.Size = 0;
|
|
|
|
|
|
cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys);
|
|
cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys);
|
|
cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
|
|
cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl);
|
|
|
|
cmd->un.xseq64.w5.hcsw.Fctl = LA;
|
|
cmd->un.xseq64.w5.hcsw.Dfctl = 0;
|
|
cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
|
|
cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
|
|
|
|
cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR;
|
|
cmd->ulpBdeCount = 1;
|
|
cmd->ulpLe = 1;
|
|
cmd->ulpClass = CLASS3;
|
|
cmd->ulpContext = rpi;
|
|
|
|
cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
|
|
cmdiocbq->vport = phba->pport;
|
|
|
|
ret_val = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
|
|
rspiocbq,
|
|
(phba->fc_ratov * 2)
|
|
+ LPFC_DRVR_TIMEOUT);
|
|
if (ret_val)
|
|
goto err_get_xri_exit;
|
|
|
|
*txxri = rsp->ulpContext;
|
|
|
|
evt->waiting = 1;
|
|
evt->wait_time_stamp = jiffies;
|
|
ret_val = wait_event_interruptible_timeout(
|
|
evt->wq, !list_empty(&evt->events_to_see),
|
|
((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ);
|
|
if (list_empty(&evt->events_to_see))
|
|
ret_val = (ret_val) ? EINTR : ETIMEDOUT;
|
|
else {
|
|
ret_val = IOCB_SUCCESS;
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_move(evt->events_to_see.prev, &evt->events_to_get);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
*rxxri = (list_entry(evt->events_to_get.prev,
|
|
typeof(struct event_data),
|
|
node))->immed_dat;
|
|
}
|
|
evt->waiting = 0;
|
|
|
|
err_get_xri_exit:
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
lpfc_bsg_event_unref(evt); /* release ref */
|
|
lpfc_bsg_event_unref(evt); /* delete */
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
if (dmabuf) {
|
|
if (dmabuf->virt)
|
|
lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
|
|
kfree(dmabuf);
|
|
}
|
|
|
|
if (cmdiocbq && (ret_val != IOCB_TIMEDOUT))
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
if (rspiocbq)
|
|
lpfc_sli_release_iocbq(phba, rspiocbq);
|
|
return ret_val;
|
|
}
|
|
|
|
/**
|
|
* diag_cmd_data_alloc - fills in a bde struct with dma buffers
|
|
* @phba: Pointer to HBA context object
|
|
* @bpl: Pointer to 64 bit bde structure
|
|
* @size: Number of bytes to process
|
|
* @nocopydata: Flag to copy user data into the allocated buffer
|
|
*
|
|
* This function allocates page size buffers and populates an lpfc_dmabufext.
|
|
* If allowed the user data pointed to with indataptr is copied into the kernel
|
|
* memory. The chained list of page size buffers is returned.
|
|
**/
|
|
static struct lpfc_dmabufext *
|
|
diag_cmd_data_alloc(struct lpfc_hba *phba,
|
|
struct ulp_bde64 *bpl, uint32_t size,
|
|
int nocopydata)
|
|
{
|
|
struct lpfc_dmabufext *mlist = NULL;
|
|
struct lpfc_dmabufext *dmp;
|
|
int cnt, offset = 0, i = 0;
|
|
struct pci_dev *pcidev;
|
|
|
|
pcidev = phba->pcidev;
|
|
|
|
while (size) {
|
|
/* We get chunks of 4K */
|
|
if (size > BUF_SZ_4K)
|
|
cnt = BUF_SZ_4K;
|
|
else
|
|
cnt = size;
|
|
|
|
/* allocate struct lpfc_dmabufext buffer header */
|
|
dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL);
|
|
if (!dmp)
|
|
goto out;
|
|
|
|
INIT_LIST_HEAD(&dmp->dma.list);
|
|
|
|
/* Queue it to a linked list */
|
|
if (mlist)
|
|
list_add_tail(&dmp->dma.list, &mlist->dma.list);
|
|
else
|
|
mlist = dmp;
|
|
|
|
/* allocate buffer */
|
|
dmp->dma.virt = dma_alloc_coherent(&pcidev->dev,
|
|
cnt,
|
|
&(dmp->dma.phys),
|
|
GFP_KERNEL);
|
|
|
|
if (!dmp->dma.virt)
|
|
goto out;
|
|
|
|
dmp->size = cnt;
|
|
|
|
if (nocopydata) {
|
|
bpl->tus.f.bdeFlags = 0;
|
|
pci_dma_sync_single_for_device(phba->pcidev,
|
|
dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE);
|
|
|
|
} else {
|
|
memset((uint8_t *)dmp->dma.virt, 0, cnt);
|
|
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
|
|
}
|
|
|
|
/* build buffer ptr list for IOCB */
|
|
bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys));
|
|
bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys));
|
|
bpl->tus.f.bdeSize = (ushort) cnt;
|
|
bpl->tus.w = le32_to_cpu(bpl->tus.w);
|
|
bpl++;
|
|
|
|
i++;
|
|
offset += cnt;
|
|
size -= cnt;
|
|
}
|
|
|
|
mlist->flag = i;
|
|
return mlist;
|
|
out:
|
|
diag_cmd_data_free(phba, mlist);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd
|
|
* @phba: Pointer to HBA context object
|
|
* @rxxri: Receive exchange id
|
|
* @len: Number of data bytes
|
|
*
|
|
* This function allocates and posts a data buffer of sufficient size to recieve
|
|
* an unsolicted CT command.
|
|
**/
|
|
static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri,
|
|
size_t len)
|
|
{
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
|
|
struct lpfc_iocbq *cmdiocbq;
|
|
IOCB_t *cmd = NULL;
|
|
struct list_head head, *curr, *next;
|
|
struct lpfc_dmabuf *rxbmp;
|
|
struct lpfc_dmabuf *dmp;
|
|
struct lpfc_dmabuf *mp[2] = {NULL, NULL};
|
|
struct ulp_bde64 *rxbpl = NULL;
|
|
uint32_t num_bde;
|
|
struct lpfc_dmabufext *rxbuffer = NULL;
|
|
int ret_val = 0;
|
|
int i = 0;
|
|
|
|
cmdiocbq = lpfc_sli_get_iocbq(phba);
|
|
rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
if (rxbmp != NULL) {
|
|
rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys);
|
|
INIT_LIST_HEAD(&rxbmp->list);
|
|
rxbpl = (struct ulp_bde64 *) rxbmp->virt;
|
|
rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0);
|
|
}
|
|
|
|
if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer) {
|
|
ret_val = ENOMEM;
|
|
goto err_post_rxbufs_exit;
|
|
}
|
|
|
|
/* Queue buffers for the receive exchange */
|
|
num_bde = (uint32_t)rxbuffer->flag;
|
|
dmp = &rxbuffer->dma;
|
|
|
|
cmd = &cmdiocbq->iocb;
|
|
i = 0;
|
|
|
|
INIT_LIST_HEAD(&head);
|
|
list_add_tail(&head, &dmp->list);
|
|
list_for_each_safe(curr, next, &head) {
|
|
mp[i] = list_entry(curr, struct lpfc_dmabuf, list);
|
|
list_del(curr);
|
|
|
|
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
|
|
mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba);
|
|
cmd->un.quexri64cx.buff.bde.addrHigh =
|
|
putPaddrHigh(mp[i]->phys);
|
|
cmd->un.quexri64cx.buff.bde.addrLow =
|
|
putPaddrLow(mp[i]->phys);
|
|
cmd->un.quexri64cx.buff.bde.tus.f.bdeSize =
|
|
((struct lpfc_dmabufext *)mp[i])->size;
|
|
cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag;
|
|
cmd->ulpCommand = CMD_QUE_XRI64_CX;
|
|
cmd->ulpPU = 0;
|
|
cmd->ulpLe = 1;
|
|
cmd->ulpBdeCount = 1;
|
|
cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0;
|
|
|
|
} else {
|
|
cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys);
|
|
cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys);
|
|
cmd->un.cont64[i].tus.f.bdeSize =
|
|
((struct lpfc_dmabufext *)mp[i])->size;
|
|
cmd->ulpBdeCount = ++i;
|
|
|
|
if ((--num_bde > 0) && (i < 2))
|
|
continue;
|
|
|
|
cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX;
|
|
cmd->ulpLe = 1;
|
|
}
|
|
|
|
cmd->ulpClass = CLASS3;
|
|
cmd->ulpContext = rxxri;
|
|
|
|
ret_val = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
|
|
|
|
if (ret_val == IOCB_ERROR) {
|
|
diag_cmd_data_free(phba,
|
|
(struct lpfc_dmabufext *)mp[0]);
|
|
if (mp[1])
|
|
diag_cmd_data_free(phba,
|
|
(struct lpfc_dmabufext *)mp[1]);
|
|
dmp = list_entry(next, struct lpfc_dmabuf, list);
|
|
ret_val = EIO;
|
|
goto err_post_rxbufs_exit;
|
|
}
|
|
|
|
lpfc_sli_ringpostbuf_put(phba, pring, mp[0]);
|
|
if (mp[1]) {
|
|
lpfc_sli_ringpostbuf_put(phba, pring, mp[1]);
|
|
mp[1] = NULL;
|
|
}
|
|
|
|
/* The iocb was freed by lpfc_sli_issue_iocb */
|
|
cmdiocbq = lpfc_sli_get_iocbq(phba);
|
|
if (!cmdiocbq) {
|
|
dmp = list_entry(next, struct lpfc_dmabuf, list);
|
|
ret_val = EIO;
|
|
goto err_post_rxbufs_exit;
|
|
}
|
|
|
|
cmd = &cmdiocbq->iocb;
|
|
i = 0;
|
|
}
|
|
list_del(&head);
|
|
|
|
err_post_rxbufs_exit:
|
|
|
|
if (rxbmp) {
|
|
if (rxbmp->virt)
|
|
lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys);
|
|
kfree(rxbmp);
|
|
}
|
|
|
|
if (cmdiocbq)
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
return ret_val;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_diag_test - with a port in loopback issues a Ct cmd to itself
|
|
* @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job
|
|
*
|
|
* This function receives a user data buffer to be transmitted and received on
|
|
* the same port, the link must be up and in loopback mode prior
|
|
* to being called.
|
|
* 1. A kernel buffer is allocated to copy the user data into.
|
|
* 2. The port registers with "itself".
|
|
* 3. The transmit and receive exchange ids are obtained.
|
|
* 4. The receive exchange id is posted.
|
|
* 5. A new els loopback event is created.
|
|
* 6. The command and response iocbs are allocated.
|
|
* 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback.
|
|
*
|
|
* This function is meant to be called n times while the port is in loopback
|
|
* so it is the apps responsibility to issue a reset to take the port out
|
|
* of loopback mode.
|
|
**/
|
|
static int
|
|
lpfc_bsg_diag_test(struct fc_bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct diag_mode_test *diag_mode;
|
|
struct lpfc_bsg_event *evt;
|
|
struct event_data *evdat;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
uint32_t size;
|
|
uint32_t full_size;
|
|
size_t segment_len = 0, segment_offset = 0, current_offset = 0;
|
|
uint16_t rpi;
|
|
struct lpfc_iocbq *cmdiocbq, *rspiocbq;
|
|
IOCB_t *cmd, *rsp;
|
|
struct lpfc_sli_ct_request *ctreq;
|
|
struct lpfc_dmabuf *txbmp;
|
|
struct ulp_bde64 *txbpl = NULL;
|
|
struct lpfc_dmabufext *txbuffer = NULL;
|
|
struct list_head head;
|
|
struct lpfc_dmabuf *curr;
|
|
uint16_t txxri, rxxri;
|
|
uint32_t num_bde;
|
|
uint8_t *ptr = NULL, *rx_databuf = NULL;
|
|
int rc = 0;
|
|
unsigned long flags;
|
|
void *dataout = NULL;
|
|
uint32_t total_mem;
|
|
|
|
/* in case no data is returned return just the return code */
|
|
job->reply->reply_payload_rcv_len = 0;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2739 Received DIAG TEST request below minimum "
|
|
"size\n");
|
|
rc = -EINVAL;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
if (job->request_payload.payload_len !=
|
|
job->reply_payload.payload_len) {
|
|
rc = -EINVAL;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
diag_mode = (struct diag_mode_test *)
|
|
job->request->rqst_data.h_vendor.vendor_cmd;
|
|
|
|
if ((phba->link_state == LPFC_HBA_ERROR) ||
|
|
(psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
|
|
(!(psli->sli_flag & LPFC_SLI_ACTIVE))) {
|
|
rc = -EACCES;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) {
|
|
rc = -EACCES;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
size = job->request_payload.payload_len;
|
|
full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */
|
|
|
|
if ((size == 0) || (size > 80 * BUF_SZ_4K)) {
|
|
rc = -ERANGE;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
if (size >= BUF_SZ_4K) {
|
|
/*
|
|
* Allocate memory for ioctl data. If buffer is bigger than 64k,
|
|
* then we allocate 64k and re-use that buffer over and over to
|
|
* xfer the whole block. This is because Linux kernel has a
|
|
* problem allocating more than 120k of kernel space memory. Saw
|
|
* problem with GET_FCPTARGETMAPPING...
|
|
*/
|
|
if (size <= (64 * 1024))
|
|
total_mem = size;
|
|
else
|
|
total_mem = 64 * 1024;
|
|
} else
|
|
/* Allocate memory for ioctl data */
|
|
total_mem = BUF_SZ_4K;
|
|
|
|
dataout = kmalloc(total_mem, GFP_KERNEL);
|
|
if (dataout == NULL) {
|
|
rc = -ENOMEM;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
ptr = dataout;
|
|
ptr += ELX_LOOPBACK_HEADER_SZ;
|
|
sg_copy_to_buffer(job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt,
|
|
ptr, size);
|
|
|
|
rc = lpfcdiag_loop_self_reg(phba, &rpi);
|
|
if (rc) {
|
|
rc = -ENOMEM;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri);
|
|
if (rc) {
|
|
lpfcdiag_loop_self_unreg(phba, rpi);
|
|
rc = -ENOMEM;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size);
|
|
if (rc) {
|
|
lpfcdiag_loop_self_unreg(phba, rpi);
|
|
rc = -ENOMEM;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
|
|
SLI_CT_ELX_LOOPBACK);
|
|
if (!evt) {
|
|
lpfcdiag_loop_self_unreg(phba, rpi);
|
|
rc = -ENOMEM;
|
|
goto loopback_test_exit;
|
|
}
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_add(&evt->node, &phba->ct_ev_waiters);
|
|
lpfc_bsg_event_ref(evt);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
cmdiocbq = lpfc_sli_get_iocbq(phba);
|
|
rspiocbq = lpfc_sli_get_iocbq(phba);
|
|
txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
|
|
if (txbmp) {
|
|
txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys);
|
|
INIT_LIST_HEAD(&txbmp->list);
|
|
txbpl = (struct ulp_bde64 *) txbmp->virt;
|
|
if (txbpl)
|
|
txbuffer = diag_cmd_data_alloc(phba,
|
|
txbpl, full_size, 0);
|
|
}
|
|
|
|
if (!cmdiocbq || !rspiocbq || !txbmp || !txbpl || !txbuffer) {
|
|
rc = -ENOMEM;
|
|
goto err_loopback_test_exit;
|
|
}
|
|
|
|
cmd = &cmdiocbq->iocb;
|
|
rsp = &rspiocbq->iocb;
|
|
|
|
INIT_LIST_HEAD(&head);
|
|
list_add_tail(&head, &txbuffer->dma.list);
|
|
list_for_each_entry(curr, &head, list) {
|
|
segment_len = ((struct lpfc_dmabufext *)curr)->size;
|
|
if (current_offset == 0) {
|
|
ctreq = curr->virt;
|
|
memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
|
|
ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
|
|
ctreq->RevisionId.bits.InId = 0;
|
|
ctreq->FsType = SLI_CT_ELX_LOOPBACK;
|
|
ctreq->FsSubType = 0;
|
|
ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA;
|
|
ctreq->CommandResponse.bits.Size = size;
|
|
segment_offset = ELX_LOOPBACK_HEADER_SZ;
|
|
} else
|
|
segment_offset = 0;
|
|
|
|
BUG_ON(segment_offset >= segment_len);
|
|
memcpy(curr->virt + segment_offset,
|
|
ptr + current_offset,
|
|
segment_len - segment_offset);
|
|
|
|
current_offset += segment_len - segment_offset;
|
|
BUG_ON(current_offset > size);
|
|
}
|
|
list_del(&head);
|
|
|
|
/* Build the XMIT_SEQUENCE iocb */
|
|
|
|
num_bde = (uint32_t)txbuffer->flag;
|
|
|
|
cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys);
|
|
cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys);
|
|
cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
|
|
cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64));
|
|
|
|
cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA);
|
|
cmd->un.xseq64.w5.hcsw.Dfctl = 0;
|
|
cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
|
|
cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
|
|
|
|
cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
|
|
cmd->ulpBdeCount = 1;
|
|
cmd->ulpLe = 1;
|
|
cmd->ulpClass = CLASS3;
|
|
cmd->ulpContext = txxri;
|
|
|
|
cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
|
|
cmdiocbq->vport = phba->pport;
|
|
|
|
rc = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, rspiocbq,
|
|
(phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT);
|
|
|
|
if ((rc != IOCB_SUCCESS) || (rsp->ulpStatus != IOCB_SUCCESS)) {
|
|
rc = -EIO;
|
|
goto err_loopback_test_exit;
|
|
}
|
|
|
|
evt->waiting = 1;
|
|
rc = wait_event_interruptible_timeout(
|
|
evt->wq, !list_empty(&evt->events_to_see),
|
|
((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ);
|
|
evt->waiting = 0;
|
|
if (list_empty(&evt->events_to_see))
|
|
rc = (rc) ? -EINTR : -ETIMEDOUT;
|
|
else {
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
list_move(evt->events_to_see.prev, &evt->events_to_get);
|
|
evdat = list_entry(evt->events_to_get.prev,
|
|
typeof(*evdat), node);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
rx_databuf = evdat->data;
|
|
if (evdat->len != full_size) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
|
|
"1603 Loopback test did not receive expected "
|
|
"data length. actual length 0x%x expected "
|
|
"length 0x%x\n",
|
|
evdat->len, full_size);
|
|
rc = -EIO;
|
|
} else if (rx_databuf == NULL)
|
|
rc = -EIO;
|
|
else {
|
|
rc = IOCB_SUCCESS;
|
|
/* skip over elx loopback header */
|
|
rx_databuf += ELX_LOOPBACK_HEADER_SZ;
|
|
job->reply->reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt,
|
|
rx_databuf, size);
|
|
job->reply->reply_payload_rcv_len = size;
|
|
}
|
|
}
|
|
|
|
err_loopback_test_exit:
|
|
lpfcdiag_loop_self_unreg(phba, rpi);
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
lpfc_bsg_event_unref(evt); /* release ref */
|
|
lpfc_bsg_event_unref(evt); /* delete */
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
|
|
if (cmdiocbq != NULL)
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
|
|
if (rspiocbq != NULL)
|
|
lpfc_sli_release_iocbq(phba, rspiocbq);
|
|
|
|
if (txbmp != NULL) {
|
|
if (txbpl != NULL) {
|
|
if (txbuffer != NULL)
|
|
diag_cmd_data_free(phba, txbuffer);
|
|
lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys);
|
|
}
|
|
kfree(txbmp);
|
|
}
|
|
|
|
loopback_test_exit:
|
|
kfree(dataout);
|
|
/* make error code available to userspace */
|
|
job->reply->result = rc;
|
|
job->dd_data = NULL;
|
|
/* complete the job back to userspace if no error */
|
|
if (rc == 0)
|
|
job->job_done(job);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command
|
|
* @job: GET_DFC_REV fc_bsg_job
|
|
**/
|
|
static int
|
|
lpfc_bsg_get_dfc_rev(struct fc_bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct get_mgmt_rev *event_req;
|
|
struct get_mgmt_rev_reply *event_reply;
|
|
int rc = 0;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2740 Received GET_DFC_REV request below "
|
|
"minimum size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
event_req = (struct get_mgmt_rev *)
|
|
job->request->rqst_data.h_vendor.vendor_cmd;
|
|
|
|
event_reply = (struct get_mgmt_rev_reply *)
|
|
job->reply->reply_data.vendor_reply.vendor_rsp;
|
|
|
|
if (job->reply_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2741 Received GET_DFC_REV reply below "
|
|
"minimum size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
event_reply->info.a_Major = MANAGEMENT_MAJOR_REV;
|
|
event_reply->info.a_Minor = MANAGEMENT_MINOR_REV;
|
|
job_error:
|
|
job->reply->result = rc;
|
|
if (rc == 0)
|
|
job->job_done(job);
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_wake_mbox_wait - lpfc_bsg_issue_mbox 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_bsg_issue_mbox 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_bsg_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
|
|
{
|
|
struct bsg_job_data *dd_data;
|
|
MAILBOX_t *pmb;
|
|
MAILBOX_t *mb;
|
|
struct fc_bsg_job *job;
|
|
uint32_t size;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
dd_data = pmboxq->context1;
|
|
if (!dd_data) {
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
return;
|
|
}
|
|
|
|
pmb = &dd_data->context_un.mbox.pmboxq->u.mb;
|
|
mb = dd_data->context_un.mbox.mb;
|
|
job = dd_data->context_un.mbox.set_job;
|
|
memcpy(mb, pmb, sizeof(*pmb));
|
|
size = job->request_payload.payload_len;
|
|
job->reply->reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt,
|
|
mb, size);
|
|
job->reply->result = 0;
|
|
dd_data->context_un.mbox.set_job = NULL;
|
|
job->dd_data = NULL;
|
|
job->job_done(job);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool);
|
|
kfree(mb);
|
|
kfree(dd_data);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_check_cmd_access - test for a supported mailbox command
|
|
* @phba: Pointer to HBA context object.
|
|
* @mb: Pointer to a mailbox object.
|
|
* @vport: Pointer to a vport object.
|
|
*
|
|
* Some commands require the port to be offline, some may not be called from
|
|
* the application.
|
|
**/
|
|
static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba,
|
|
MAILBOX_t *mb, struct lpfc_vport *vport)
|
|
{
|
|
/* return negative error values for bsg job */
|
|
switch (mb->mbxCommand) {
|
|
/* Offline only */
|
|
case MBX_INIT_LINK:
|
|
case MBX_DOWN_LINK:
|
|
case MBX_CONFIG_LINK:
|
|
case MBX_CONFIG_RING:
|
|
case MBX_RESET_RING:
|
|
case MBX_UNREG_LOGIN:
|
|
case MBX_CLEAR_LA:
|
|
case MBX_DUMP_CONTEXT:
|
|
case MBX_RUN_DIAGS:
|
|
case MBX_RESTART:
|
|
case MBX_SET_MASK:
|
|
if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2743 Command 0x%x is illegal in on-line "
|
|
"state\n",
|
|
mb->mbxCommand);
|
|
return -EPERM;
|
|
}
|
|
case MBX_WRITE_NV:
|
|
case MBX_WRITE_VPARMS:
|
|
case MBX_LOAD_SM:
|
|
case MBX_READ_NV:
|
|
case MBX_READ_CONFIG:
|
|
case MBX_READ_RCONFIG:
|
|
case MBX_READ_STATUS:
|
|
case MBX_READ_XRI:
|
|
case MBX_READ_REV:
|
|
case MBX_READ_LNK_STAT:
|
|
case MBX_DUMP_MEMORY:
|
|
case MBX_DOWN_LOAD:
|
|
case MBX_UPDATE_CFG:
|
|
case MBX_KILL_BOARD:
|
|
case MBX_LOAD_AREA:
|
|
case MBX_LOAD_EXP_ROM:
|
|
case MBX_BEACON:
|
|
case MBX_DEL_LD_ENTRY:
|
|
case MBX_SET_DEBUG:
|
|
case MBX_WRITE_WWN:
|
|
case MBX_SLI4_CONFIG:
|
|
case MBX_READ_EVENT_LOG_STATUS:
|
|
case MBX_WRITE_EVENT_LOG:
|
|
case MBX_PORT_CAPABILITIES:
|
|
case MBX_PORT_IOV_CONTROL:
|
|
break;
|
|
case MBX_SET_VARIABLE:
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"1226 mbox: set_variable 0x%x, 0x%x\n",
|
|
mb->un.varWords[0],
|
|
mb->un.varWords[1]);
|
|
if ((mb->un.varWords[0] == SETVAR_MLOMNT)
|
|
&& (mb->un.varWords[1] == 1)) {
|
|
phba->wait_4_mlo_maint_flg = 1;
|
|
} else if (mb->un.varWords[0] == SETVAR_MLORST) {
|
|
phba->link_flag &= ~LS_LOOPBACK_MODE;
|
|
phba->fc_topology = TOPOLOGY_PT_PT;
|
|
}
|
|
break;
|
|
case MBX_RUN_BIU_DIAG64:
|
|
case MBX_READ_EVENT_LOG:
|
|
case MBX_READ_SPARM64:
|
|
case MBX_READ_LA:
|
|
case MBX_READ_LA64:
|
|
case MBX_REG_LOGIN:
|
|
case MBX_REG_LOGIN64:
|
|
case MBX_CONFIG_PORT:
|
|
case MBX_RUN_BIU_DIAG:
|
|
default:
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2742 Unknown Command 0x%x\n",
|
|
mb->mbxCommand);
|
|
return -EPERM;
|
|
}
|
|
|
|
return 0; /* ok */
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app
|
|
* @phba: Pointer to HBA context object.
|
|
* @mb: Pointer to a mailbox object.
|
|
* @vport: Pointer to a vport object.
|
|
*
|
|
* Allocate a tracking object, mailbox command memory, get a mailbox
|
|
* from the mailbox pool, copy the caller mailbox command.
|
|
*
|
|
* If offline and the sli is active we need to poll for the command (port is
|
|
* being reset) and com-plete the job, otherwise issue the mailbox command and
|
|
* let our completion handler finish the command.
|
|
**/
|
|
static uint32_t
|
|
lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job,
|
|
struct lpfc_vport *vport)
|
|
{
|
|
LPFC_MBOXQ_t *pmboxq;
|
|
MAILBOX_t *pmb;
|
|
MAILBOX_t *mb;
|
|
struct bsg_job_data *dd_data;
|
|
uint32_t size;
|
|
int rc = 0;
|
|
|
|
/* allocate our bsg tracking structure */
|
|
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (!dd_data) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2727 Failed allocation of dd_data\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
mb = kzalloc(PAGE_SIZE, GFP_KERNEL);
|
|
if (!mb) {
|
|
kfree(dd_data);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmboxq) {
|
|
kfree(dd_data);
|
|
kfree(mb);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
size = job->request_payload.payload_len;
|
|
job->reply->reply_payload_rcv_len =
|
|
sg_copy_to_buffer(job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt,
|
|
mb, size);
|
|
|
|
rc = lpfc_bsg_check_cmd_access(phba, mb, vport);
|
|
if (rc != 0) {
|
|
kfree(dd_data);
|
|
kfree(mb);
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
return rc; /* must be negative */
|
|
}
|
|
|
|
memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
|
|
pmb = &pmboxq->u.mb;
|
|
memcpy(pmb, mb, sizeof(*pmb));
|
|
pmb->mbxOwner = OWN_HOST;
|
|
pmboxq->context1 = NULL;
|
|
pmboxq->vport = vport;
|
|
|
|
if ((vport->fc_flag & FC_OFFLINE_MODE) ||
|
|
(!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
|
|
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
|
|
if (rc != MBX_SUCCESS) {
|
|
if (rc != MBX_TIMEOUT) {
|
|
kfree(dd_data);
|
|
kfree(mb);
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
}
|
|
return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
|
|
}
|
|
|
|
memcpy(mb, pmb, sizeof(*pmb));
|
|
job->reply->reply_payload_rcv_len =
|
|
sg_copy_from_buffer(job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt,
|
|
mb, size);
|
|
kfree(dd_data);
|
|
kfree(mb);
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
/* not waiting mbox already done */
|
|
return 0;
|
|
}
|
|
|
|
/* setup wake call as IOCB callback */
|
|
pmboxq->mbox_cmpl = lpfc_bsg_wake_mbox_wait;
|
|
/* setup context field to pass wait_queue pointer to wake function */
|
|
pmboxq->context1 = dd_data;
|
|
dd_data->type = TYPE_MBOX;
|
|
dd_data->context_un.mbox.pmboxq = pmboxq;
|
|
dd_data->context_un.mbox.mb = mb;
|
|
dd_data->context_un.mbox.set_job = job;
|
|
job->dd_data = dd_data;
|
|
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
|
|
if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
|
|
kfree(dd_data);
|
|
kfree(mb);
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
return -EIO;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command
|
|
* @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX.
|
|
**/
|
|
static int
|
|
lpfc_bsg_mbox_cmd(struct fc_bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
int rc = 0;
|
|
|
|
/* in case no data is transferred */
|
|
job->reply->reply_payload_rcv_len = 0;
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2737 Received MBOX_REQ request below "
|
|
"minimum size\n");
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
if (job->request_payload.payload_len != PAGE_SIZE) {
|
|
rc = -EINVAL;
|
|
goto job_error;
|
|
}
|
|
|
|
if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
|
|
rc = -EAGAIN;
|
|
goto job_error;
|
|
}
|
|
|
|
rc = lpfc_bsg_issue_mbox(phba, job, vport);
|
|
|
|
job_error:
|
|
if (rc == 0) {
|
|
/* job done */
|
|
job->reply->result = 0;
|
|
job->dd_data = NULL;
|
|
job->job_done(job);
|
|
} else if (rc == 1)
|
|
/* job submitted, will complete later*/
|
|
rc = 0; /* return zero, no error */
|
|
else {
|
|
/* some error occurred */
|
|
job->reply->result = rc;
|
|
job->dd_data = NULL;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd 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_menlo_cmd 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 another thread which
|
|
* cleans up the SLI layer objects.
|
|
* This function copies 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_bsg_menlo_cmd_cmp(struct lpfc_hba *phba,
|
|
struct lpfc_iocbq *cmdiocbq,
|
|
struct lpfc_iocbq *rspiocbq)
|
|
{
|
|
struct bsg_job_data *dd_data;
|
|
struct fc_bsg_job *job;
|
|
IOCB_t *rsp;
|
|
struct lpfc_dmabuf *bmp;
|
|
struct lpfc_bsg_menlo *menlo;
|
|
unsigned long flags;
|
|
struct menlo_response *menlo_resp;
|
|
int rc = 0;
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
dd_data = cmdiocbq->context1;
|
|
if (!dd_data) {
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
return;
|
|
}
|
|
|
|
menlo = &dd_data->context_un.menlo;
|
|
job = menlo->set_job;
|
|
job->dd_data = NULL; /* so timeout handler does not reply */
|
|
|
|
spin_lock_irqsave(&phba->hbalock, flags);
|
|
cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
|
|
if (cmdiocbq->context2 && rspiocbq)
|
|
memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
|
|
&rspiocbq->iocb, sizeof(IOCB_t));
|
|
spin_unlock_irqrestore(&phba->hbalock, flags);
|
|
|
|
bmp = menlo->bmp;
|
|
rspiocbq = menlo->rspiocbq;
|
|
rsp = &rspiocbq->iocb;
|
|
|
|
pci_unmap_sg(phba->pcidev, job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt, DMA_TO_DEVICE);
|
|
pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
|
|
|
|
/* always return the xri, this would be used in the case
|
|
* of a menlo download to allow the data to be sent as a continuation
|
|
* of the exchange.
|
|
*/
|
|
menlo_resp = (struct menlo_response *)
|
|
job->reply->reply_data.vendor_reply.vendor_rsp;
|
|
menlo_resp->xri = rsp->ulpContext;
|
|
if (rsp->ulpStatus) {
|
|
if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
|
|
switch (rsp->un.ulpWord[4] & 0xff) {
|
|
case IOERR_SEQUENCE_TIMEOUT:
|
|
rc = -ETIMEDOUT;
|
|
break;
|
|
case IOERR_INVALID_RPI:
|
|
rc = -EFAULT;
|
|
break;
|
|
default:
|
|
rc = -EACCES;
|
|
break;
|
|
}
|
|
} else
|
|
rc = -EACCES;
|
|
} else
|
|
job->reply->reply_payload_rcv_len =
|
|
rsp->un.genreq64.bdl.bdeSize;
|
|
|
|
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
|
|
lpfc_sli_release_iocbq(phba, rspiocbq);
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
kfree(bmp);
|
|
kfree(dd_data);
|
|
/* make error code available to userspace */
|
|
job->reply->result = rc;
|
|
/* complete the job back to userspace */
|
|
job->job_done(job);
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* lpfc_menlo_cmd - send an ioctl for menlo hardware
|
|
* @job: fc_bsg_job to handle
|
|
*
|
|
* This function issues a gen request 64 CR ioctl for all menlo cmd requests,
|
|
* all the command completions will return the xri for the command.
|
|
* For menlo data requests a gen request 64 CX is used to continue the exchange
|
|
* supplied in the menlo request header xri field.
|
|
**/
|
|
static int
|
|
lpfc_menlo_cmd(struct fc_bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_iocbq *cmdiocbq, *rspiocbq;
|
|
IOCB_t *cmd, *rsp;
|
|
int rc = 0;
|
|
struct menlo_command *menlo_cmd;
|
|
struct menlo_response *menlo_resp;
|
|
struct lpfc_dmabuf *bmp = NULL;
|
|
int request_nseg;
|
|
int reply_nseg;
|
|
struct scatterlist *sgel = NULL;
|
|
int numbde;
|
|
dma_addr_t busaddr;
|
|
struct bsg_job_data *dd_data;
|
|
struct ulp_bde64 *bpl = NULL;
|
|
|
|
/* in case no data is returned return just the return code */
|
|
job->reply->reply_payload_rcv_len = 0;
|
|
|
|
if (job->request_len <
|
|
sizeof(struct fc_bsg_request) +
|
|
sizeof(struct menlo_command)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2784 Received MENLO_CMD request below "
|
|
"minimum size\n");
|
|
rc = -ERANGE;
|
|
goto no_dd_data;
|
|
}
|
|
|
|
if (job->reply_len <
|
|
sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2785 Received MENLO_CMD reply below "
|
|
"minimum size\n");
|
|
rc = -ERANGE;
|
|
goto no_dd_data;
|
|
}
|
|
|
|
if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2786 Adapter does not support menlo "
|
|
"commands\n");
|
|
rc = -EPERM;
|
|
goto no_dd_data;
|
|
}
|
|
|
|
menlo_cmd = (struct menlo_command *)
|
|
job->request->rqst_data.h_vendor.vendor_cmd;
|
|
|
|
menlo_resp = (struct menlo_response *)
|
|
job->reply->reply_data.vendor_reply.vendor_rsp;
|
|
|
|
/* allocate our bsg tracking structure */
|
|
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
|
|
if (!dd_data) {
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
|
|
"2787 Failed allocation of dd_data\n");
|
|
rc = -ENOMEM;
|
|
goto no_dd_data;
|
|
}
|
|
|
|
bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
if (!bmp) {
|
|
rc = -ENOMEM;
|
|
goto free_dd;
|
|
}
|
|
|
|
cmdiocbq = lpfc_sli_get_iocbq(phba);
|
|
if (!cmdiocbq) {
|
|
rc = -ENOMEM;
|
|
goto free_bmp;
|
|
}
|
|
|
|
rspiocbq = lpfc_sli_get_iocbq(phba);
|
|
if (!rspiocbq) {
|
|
rc = -ENOMEM;
|
|
goto free_cmdiocbq;
|
|
}
|
|
|
|
rsp = &rspiocbq->iocb;
|
|
|
|
bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
|
|
if (!bmp->virt) {
|
|
rc = -ENOMEM;
|
|
goto free_rspiocbq;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&bmp->list);
|
|
bpl = (struct ulp_bde64 *) bmp->virt;
|
|
request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt, DMA_TO_DEVICE);
|
|
for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) {
|
|
busaddr = sg_dma_address(sgel);
|
|
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
|
|
bpl->tus.f.bdeSize = sg_dma_len(sgel);
|
|
bpl->tus.w = cpu_to_le32(bpl->tus.w);
|
|
bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr));
|
|
bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr));
|
|
bpl++;
|
|
}
|
|
|
|
reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
|
|
for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) {
|
|
busaddr = sg_dma_address(sgel);
|
|
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
|
|
bpl->tus.f.bdeSize = sg_dma_len(sgel);
|
|
bpl->tus.w = cpu_to_le32(bpl->tus.w);
|
|
bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr));
|
|
bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr));
|
|
bpl++;
|
|
}
|
|
|
|
cmd = &cmdiocbq->iocb;
|
|
cmd->un.genreq64.bdl.ulpIoTag32 = 0;
|
|
cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
|
|
cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
|
|
cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
|
|
cmd->un.genreq64.bdl.bdeSize =
|
|
(request_nseg + reply_nseg) * sizeof(struct ulp_bde64);
|
|
cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
|
|
cmd->un.genreq64.w5.hcsw.Dfctl = 0;
|
|
cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD;
|
|
cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */
|
|
cmd->ulpBdeCount = 1;
|
|
cmd->ulpClass = CLASS3;
|
|
cmd->ulpOwner = OWN_CHIP;
|
|
cmd->ulpLe = 1; /* Limited Edition */
|
|
cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
|
|
cmdiocbq->vport = phba->pport;
|
|
/* We want the firmware to timeout before we do */
|
|
cmd->ulpTimeout = MENLO_TIMEOUT - 5;
|
|
cmdiocbq->context3 = bmp;
|
|
cmdiocbq->context2 = rspiocbq;
|
|
cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp;
|
|
cmdiocbq->context1 = dd_data;
|
|
cmdiocbq->context2 = rspiocbq;
|
|
if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) {
|
|
cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
|
|
cmd->ulpPU = MENLO_PU; /* 3 */
|
|
cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */
|
|
cmd->ulpContext = MENLO_CONTEXT; /* 0 */
|
|
} else {
|
|
cmd->ulpCommand = CMD_GEN_REQUEST64_CX;
|
|
cmd->ulpPU = 1;
|
|
cmd->un.ulpWord[4] = 0;
|
|
cmd->ulpContext = menlo_cmd->xri;
|
|
}
|
|
|
|
dd_data->type = TYPE_MENLO;
|
|
dd_data->context_un.menlo.cmdiocbq = cmdiocbq;
|
|
dd_data->context_un.menlo.rspiocbq = rspiocbq;
|
|
dd_data->context_un.menlo.set_job = job;
|
|
dd_data->context_un.menlo.bmp = bmp;
|
|
|
|
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq,
|
|
MENLO_TIMEOUT - 5);
|
|
if (rc == IOCB_SUCCESS)
|
|
return 0; /* done for now */
|
|
|
|
/* iocb failed so cleanup */
|
|
pci_unmap_sg(phba->pcidev, job->request_payload.sg_list,
|
|
job->request_payload.sg_cnt, DMA_TO_DEVICE);
|
|
pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list,
|
|
job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
|
|
|
|
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
|
|
|
|
free_rspiocbq:
|
|
lpfc_sli_release_iocbq(phba, rspiocbq);
|
|
free_cmdiocbq:
|
|
lpfc_sli_release_iocbq(phba, cmdiocbq);
|
|
free_bmp:
|
|
kfree(bmp);
|
|
free_dd:
|
|
kfree(dd_data);
|
|
no_dd_data:
|
|
/* make error code available to userspace */
|
|
job->reply->result = rc;
|
|
job->dd_data = NULL;
|
|
return rc;
|
|
}
|
|
/**
|
|
* lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job
|
|
* @job: fc_bsg_job to handle
|
|
**/
|
|
static int
|
|
lpfc_bsg_hst_vendor(struct fc_bsg_job *job)
|
|
{
|
|
int command = job->request->rqst_data.h_vendor.vendor_cmd[0];
|
|
int rc;
|
|
|
|
switch (command) {
|
|
case LPFC_BSG_VENDOR_SET_CT_EVENT:
|
|
rc = lpfc_bsg_hba_set_event(job);
|
|
break;
|
|
case LPFC_BSG_VENDOR_GET_CT_EVENT:
|
|
rc = lpfc_bsg_hba_get_event(job);
|
|
break;
|
|
case LPFC_BSG_VENDOR_SEND_MGMT_RESP:
|
|
rc = lpfc_bsg_send_mgmt_rsp(job);
|
|
break;
|
|
case LPFC_BSG_VENDOR_DIAG_MODE:
|
|
rc = lpfc_bsg_diag_mode(job);
|
|
break;
|
|
case LPFC_BSG_VENDOR_DIAG_TEST:
|
|
rc = lpfc_bsg_diag_test(job);
|
|
break;
|
|
case LPFC_BSG_VENDOR_GET_MGMT_REV:
|
|
rc = lpfc_bsg_get_dfc_rev(job);
|
|
break;
|
|
case LPFC_BSG_VENDOR_MBOX:
|
|
rc = lpfc_bsg_mbox_cmd(job);
|
|
break;
|
|
case LPFC_BSG_VENDOR_MENLO_CMD:
|
|
case LPFC_BSG_VENDOR_MENLO_DATA:
|
|
rc = lpfc_menlo_cmd(job);
|
|
break;
|
|
default:
|
|
rc = -EINVAL;
|
|
job->reply->reply_payload_rcv_len = 0;
|
|
/* make error code available to userspace */
|
|
job->reply->result = rc;
|
|
break;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_request - handle a bsg request from the FC transport
|
|
* @job: fc_bsg_job to handle
|
|
**/
|
|
int
|
|
lpfc_bsg_request(struct fc_bsg_job *job)
|
|
{
|
|
uint32_t msgcode;
|
|
int rc;
|
|
|
|
msgcode = job->request->msgcode;
|
|
switch (msgcode) {
|
|
case FC_BSG_HST_VENDOR:
|
|
rc = lpfc_bsg_hst_vendor(job);
|
|
break;
|
|
case FC_BSG_RPT_ELS:
|
|
rc = lpfc_bsg_rport_els(job);
|
|
break;
|
|
case FC_BSG_RPT_CT:
|
|
rc = lpfc_bsg_send_mgmt_cmd(job);
|
|
break;
|
|
default:
|
|
rc = -EINVAL;
|
|
job->reply->reply_payload_rcv_len = 0;
|
|
/* make error code available to userspace */
|
|
job->reply->result = rc;
|
|
break;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport
|
|
* @job: fc_bsg_job that has timed out
|
|
*
|
|
* This function just aborts the job's IOCB. The aborted IOCB will return to
|
|
* the waiting function which will handle passing the error back to userspace
|
|
**/
|
|
int
|
|
lpfc_bsg_timeout(struct fc_bsg_job *job)
|
|
{
|
|
struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_iocbq *cmdiocb;
|
|
struct lpfc_bsg_event *evt;
|
|
struct lpfc_bsg_iocb *iocb;
|
|
struct lpfc_bsg_mbox *mbox;
|
|
struct lpfc_bsg_menlo *menlo;
|
|
struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
|
|
struct bsg_job_data *dd_data;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&phba->ct_ev_lock, flags);
|
|
dd_data = (struct bsg_job_data *)job->dd_data;
|
|
/* timeout and completion crossed paths if no dd_data */
|
|
if (!dd_data) {
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
switch (dd_data->type) {
|
|
case TYPE_IOCB:
|
|
iocb = &dd_data->context_un.iocb;
|
|
cmdiocb = iocb->cmdiocbq;
|
|
/* hint to completion handler that the job timed out */
|
|
job->reply->result = -EAGAIN;
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
/* this will call our completion handler */
|
|
spin_lock_irq(&phba->hbalock);
|
|
lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
break;
|
|
case TYPE_EVT:
|
|
evt = dd_data->context_un.evt;
|
|
/* this event has no job anymore */
|
|
evt->set_job = NULL;
|
|
job->dd_data = NULL;
|
|
job->reply->reply_payload_rcv_len = 0;
|
|
/* Return -EAGAIN which is our way of signallying the
|
|
* app to retry.
|
|
*/
|
|
job->reply->result = -EAGAIN;
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
job->job_done(job);
|
|
break;
|
|
case TYPE_MBOX:
|
|
mbox = &dd_data->context_un.mbox;
|
|
/* this mbox has no job anymore */
|
|
mbox->set_job = NULL;
|
|
job->dd_data = NULL;
|
|
job->reply->reply_payload_rcv_len = 0;
|
|
job->reply->result = -EAGAIN;
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
job->job_done(job);
|
|
break;
|
|
case TYPE_MENLO:
|
|
menlo = &dd_data->context_un.menlo;
|
|
cmdiocb = menlo->cmdiocbq;
|
|
/* hint to completion handler that the job timed out */
|
|
job->reply->result = -EAGAIN;
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
/* this will call our completion handler */
|
|
spin_lock_irq(&phba->hbalock);
|
|
lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
break;
|
|
default:
|
|
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
|
|
break;
|
|
}
|
|
|
|
/* scsi transport fc fc_bsg_job_timeout expects a zero return code,
|
|
* otherwise an error message will be displayed on the console
|
|
* so always return success (zero)
|
|
*/
|
|
return 0;
|
|
}
|