mirror of https://gitee.com/openkylin/linux.git
2044 lines
54 KiB
C
2044 lines
54 KiB
C
/*
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* QLogic Fibre Channel HBA Driver
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* Copyright (c) 2003-2011 QLogic Corporation
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*
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* See LICENSE.qla2xxx for copyright and licensing details.
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*/
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#include "qla_def.h"
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#include <linux/blkdev.h>
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#include <linux/delay.h>
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#include <scsi/scsi_tcq.h>
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static void qla2x00_isp_cmd(struct scsi_qla_host *, struct req_que *);
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static void qla25xx_set_que(srb_t *, struct rsp_que **);
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/**
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* qla2x00_get_cmd_direction() - Determine control_flag data direction.
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* @cmd: SCSI command
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*
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* Returns the proper CF_* direction based on CDB.
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*/
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static inline uint16_t
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qla2x00_get_cmd_direction(srb_t *sp)
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{
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uint16_t cflags;
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cflags = 0;
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/* Set transfer direction */
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if (sp->cmd->sc_data_direction == DMA_TO_DEVICE) {
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cflags = CF_WRITE;
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sp->fcport->vha->hw->qla_stats.output_bytes +=
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scsi_bufflen(sp->cmd);
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} else if (sp->cmd->sc_data_direction == DMA_FROM_DEVICE) {
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cflags = CF_READ;
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sp->fcport->vha->hw->qla_stats.input_bytes +=
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scsi_bufflen(sp->cmd);
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}
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return (cflags);
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}
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/**
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* qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and
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* Continuation Type 0 IOCBs to allocate.
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*
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* @dsds: number of data segment decriptors needed
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*
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* Returns the number of IOCB entries needed to store @dsds.
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*/
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uint16_t
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qla2x00_calc_iocbs_32(uint16_t dsds)
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{
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uint16_t iocbs;
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iocbs = 1;
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if (dsds > 3) {
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iocbs += (dsds - 3) / 7;
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if ((dsds - 3) % 7)
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iocbs++;
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}
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return (iocbs);
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}
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/**
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* qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and
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* Continuation Type 1 IOCBs to allocate.
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*
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* @dsds: number of data segment decriptors needed
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*
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* Returns the number of IOCB entries needed to store @dsds.
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*/
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uint16_t
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qla2x00_calc_iocbs_64(uint16_t dsds)
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{
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uint16_t iocbs;
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iocbs = 1;
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if (dsds > 2) {
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iocbs += (dsds - 2) / 5;
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if ((dsds - 2) % 5)
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iocbs++;
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}
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return (iocbs);
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}
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/**
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* qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB.
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* @ha: HA context
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*
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* Returns a pointer to the Continuation Type 0 IOCB packet.
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*/
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static inline cont_entry_t *
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qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha)
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{
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cont_entry_t *cont_pkt;
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struct req_que *req = vha->req;
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/* Adjust ring index. */
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req->ring_index++;
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if (req->ring_index == req->length) {
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req->ring_index = 0;
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req->ring_ptr = req->ring;
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} else {
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req->ring_ptr++;
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}
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cont_pkt = (cont_entry_t *)req->ring_ptr;
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/* Load packet defaults. */
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*((uint32_t *)(&cont_pkt->entry_type)) =
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__constant_cpu_to_le32(CONTINUE_TYPE);
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return (cont_pkt);
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}
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/**
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* qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB.
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* @ha: HA context
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*
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* Returns a pointer to the continuation type 1 IOCB packet.
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*/
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static inline cont_a64_entry_t *
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qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha)
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{
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cont_a64_entry_t *cont_pkt;
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struct req_que *req = vha->req;
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/* Adjust ring index. */
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req->ring_index++;
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if (req->ring_index == req->length) {
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req->ring_index = 0;
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req->ring_ptr = req->ring;
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} else {
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req->ring_ptr++;
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}
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cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
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/* Load packet defaults. */
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*((uint32_t *)(&cont_pkt->entry_type)) =
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__constant_cpu_to_le32(CONTINUE_A64_TYPE);
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return (cont_pkt);
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}
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static inline int
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qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts)
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{
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uint8_t guard = scsi_host_get_guard(sp->cmd->device->host);
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/* We only support T10 DIF right now */
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if (guard != SHOST_DIX_GUARD_CRC) {
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DEBUG2(printk(KERN_ERR "Unsupported guard: %d\n", guard));
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return 0;
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}
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/* We always use DIFF Bundling for best performance */
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*fw_prot_opts = 0;
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/* Translate SCSI opcode to a protection opcode */
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switch (scsi_get_prot_op(sp->cmd)) {
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case SCSI_PROT_READ_STRIP:
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*fw_prot_opts |= PO_MODE_DIF_REMOVE;
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break;
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case SCSI_PROT_WRITE_INSERT:
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*fw_prot_opts |= PO_MODE_DIF_INSERT;
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break;
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case SCSI_PROT_READ_INSERT:
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*fw_prot_opts |= PO_MODE_DIF_INSERT;
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break;
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case SCSI_PROT_WRITE_STRIP:
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*fw_prot_opts |= PO_MODE_DIF_REMOVE;
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break;
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case SCSI_PROT_READ_PASS:
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*fw_prot_opts |= PO_MODE_DIF_PASS;
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break;
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case SCSI_PROT_WRITE_PASS:
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*fw_prot_opts |= PO_MODE_DIF_PASS;
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break;
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default: /* Normal Request */
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*fw_prot_opts |= PO_MODE_DIF_PASS;
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break;
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}
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return scsi_prot_sg_count(sp->cmd);
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}
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/*
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* qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit
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* capable IOCB types.
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*
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* @sp: SRB command to process
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* @cmd_pkt: Command type 2 IOCB
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* @tot_dsds: Total number of segments to transfer
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*/
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void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt,
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uint16_t tot_dsds)
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{
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uint16_t avail_dsds;
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uint32_t *cur_dsd;
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scsi_qla_host_t *vha;
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struct scsi_cmnd *cmd;
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struct scatterlist *sg;
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int i;
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cmd = sp->cmd;
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/* Update entry type to indicate Command Type 2 IOCB */
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*((uint32_t *)(&cmd_pkt->entry_type)) =
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__constant_cpu_to_le32(COMMAND_TYPE);
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/* No data transfer */
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if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
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cmd_pkt->byte_count = __constant_cpu_to_le32(0);
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return;
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}
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vha = sp->fcport->vha;
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cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
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/* Three DSDs are available in the Command Type 2 IOCB */
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avail_dsds = 3;
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cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address;
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/* Load data segments */
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scsi_for_each_sg(cmd, sg, tot_dsds, i) {
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cont_entry_t *cont_pkt;
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/* Allocate additional continuation packets? */
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if (avail_dsds == 0) {
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/*
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* Seven DSDs are available in the Continuation
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* Type 0 IOCB.
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*/
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cont_pkt = qla2x00_prep_cont_type0_iocb(vha);
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cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address;
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avail_dsds = 7;
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}
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*cur_dsd++ = cpu_to_le32(sg_dma_address(sg));
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*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
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avail_dsds--;
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}
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}
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/**
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* qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit
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* capable IOCB types.
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*
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* @sp: SRB command to process
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* @cmd_pkt: Command type 3 IOCB
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* @tot_dsds: Total number of segments to transfer
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*/
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void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt,
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uint16_t tot_dsds)
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{
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uint16_t avail_dsds;
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uint32_t *cur_dsd;
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scsi_qla_host_t *vha;
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struct scsi_cmnd *cmd;
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struct scatterlist *sg;
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int i;
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cmd = sp->cmd;
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/* Update entry type to indicate Command Type 3 IOCB */
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*((uint32_t *)(&cmd_pkt->entry_type)) =
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__constant_cpu_to_le32(COMMAND_A64_TYPE);
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/* No data transfer */
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if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
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cmd_pkt->byte_count = __constant_cpu_to_le32(0);
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return;
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}
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vha = sp->fcport->vha;
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cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
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/* Two DSDs are available in the Command Type 3 IOCB */
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avail_dsds = 2;
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cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address;
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/* Load data segments */
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scsi_for_each_sg(cmd, sg, tot_dsds, i) {
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dma_addr_t sle_dma;
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cont_a64_entry_t *cont_pkt;
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/* Allocate additional continuation packets? */
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if (avail_dsds == 0) {
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/*
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* Five DSDs are available in the Continuation
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* Type 1 IOCB.
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*/
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cont_pkt = qla2x00_prep_cont_type1_iocb(vha);
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cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
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avail_dsds = 5;
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}
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sle_dma = sg_dma_address(sg);
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*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
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*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
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*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
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avail_dsds--;
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}
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}
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/**
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* qla2x00_start_scsi() - Send a SCSI command to the ISP
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* @sp: command to send to the ISP
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*
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* Returns non-zero if a failure occurred, else zero.
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*/
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int
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qla2x00_start_scsi(srb_t *sp)
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{
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int ret, nseg;
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unsigned long flags;
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scsi_qla_host_t *vha;
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struct scsi_cmnd *cmd;
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uint32_t *clr_ptr;
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uint32_t index;
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uint32_t handle;
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cmd_entry_t *cmd_pkt;
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uint16_t cnt;
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uint16_t req_cnt;
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uint16_t tot_dsds;
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struct device_reg_2xxx __iomem *reg;
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struct qla_hw_data *ha;
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struct req_que *req;
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struct rsp_que *rsp;
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char tag[2];
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/* Setup device pointers. */
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ret = 0;
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vha = sp->fcport->vha;
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ha = vha->hw;
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reg = &ha->iobase->isp;
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cmd = sp->cmd;
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req = ha->req_q_map[0];
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rsp = ha->rsp_q_map[0];
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/* So we know we haven't pci_map'ed anything yet */
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tot_dsds = 0;
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/* Send marker if required */
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if (vha->marker_needed != 0) {
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if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL)
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!= QLA_SUCCESS)
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return (QLA_FUNCTION_FAILED);
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vha->marker_needed = 0;
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}
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/* Acquire ring specific lock */
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spin_lock_irqsave(&ha->hardware_lock, flags);
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/* Check for room in outstanding command list. */
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handle = req->current_outstanding_cmd;
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for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
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handle++;
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if (handle == MAX_OUTSTANDING_COMMANDS)
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handle = 1;
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if (!req->outstanding_cmds[handle])
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break;
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}
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if (index == MAX_OUTSTANDING_COMMANDS)
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goto queuing_error;
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/* Map the sg table so we have an accurate count of sg entries needed */
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if (scsi_sg_count(cmd)) {
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nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
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scsi_sg_count(cmd), cmd->sc_data_direction);
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if (unlikely(!nseg))
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goto queuing_error;
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} else
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nseg = 0;
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tot_dsds = nseg;
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/* Calculate the number of request entries needed. */
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req_cnt = ha->isp_ops->calc_req_entries(tot_dsds);
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if (req->cnt < (req_cnt + 2)) {
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cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg));
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if (req->ring_index < cnt)
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req->cnt = cnt - req->ring_index;
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else
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req->cnt = req->length -
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(req->ring_index - cnt);
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}
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if (req->cnt < (req_cnt + 2))
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goto queuing_error;
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/* Build command packet */
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req->current_outstanding_cmd = handle;
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req->outstanding_cmds[handle] = sp;
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sp->handle = handle;
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sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
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req->cnt -= req_cnt;
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cmd_pkt = (cmd_entry_t *)req->ring_ptr;
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cmd_pkt->handle = handle;
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/* Zero out remaining portion of packet. */
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clr_ptr = (uint32_t *)cmd_pkt + 2;
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memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
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cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
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/* Set target ID and LUN number*/
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SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id);
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cmd_pkt->lun = cpu_to_le16(sp->cmd->device->lun);
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/* Update tagged queuing modifier */
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if (scsi_populate_tag_msg(cmd, tag)) {
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switch (tag[0]) {
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case HEAD_OF_QUEUE_TAG:
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cmd_pkt->control_flags =
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__constant_cpu_to_le16(CF_HEAD_TAG);
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break;
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case ORDERED_QUEUE_TAG:
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cmd_pkt->control_flags =
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__constant_cpu_to_le16(CF_ORDERED_TAG);
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break;
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default:
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cmd_pkt->control_flags =
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__constant_cpu_to_le16(CF_SIMPLE_TAG);
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break;
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}
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}
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/* Load SCSI command packet. */
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memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len);
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cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
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/* Build IOCB segments */
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ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds);
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/* Set total data segment count. */
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cmd_pkt->entry_count = (uint8_t)req_cnt;
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wmb();
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/* Adjust ring index. */
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req->ring_index++;
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if (req->ring_index == req->length) {
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req->ring_index = 0;
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req->ring_ptr = req->ring;
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} else
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req->ring_ptr++;
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sp->flags |= SRB_DMA_VALID;
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/* Set chip new ring index. */
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WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index);
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RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */
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/* Manage unprocessed RIO/ZIO commands in response queue. */
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if (vha->flags.process_response_queue &&
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rsp->ring_ptr->signature != RESPONSE_PROCESSED)
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qla2x00_process_response_queue(rsp);
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spin_unlock_irqrestore(&ha->hardware_lock, flags);
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return (QLA_SUCCESS);
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queuing_error:
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if (tot_dsds)
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scsi_dma_unmap(cmd);
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spin_unlock_irqrestore(&ha->hardware_lock, flags);
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return (QLA_FUNCTION_FAILED);
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}
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|
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/**
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* qla2x00_marker() - Send a marker IOCB to the firmware.
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* @ha: HA context
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* @loop_id: loop ID
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* @lun: LUN
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* @type: marker modifier
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*
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* Can be called from both normal and interrupt context.
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*
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* Returns non-zero if a failure occurred, else zero.
|
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*/
|
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static int
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__qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req,
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struct rsp_que *rsp, uint16_t loop_id,
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uint16_t lun, uint8_t type)
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|
{
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mrk_entry_t *mrk;
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struct mrk_entry_24xx *mrk24;
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struct qla_hw_data *ha = vha->hw;
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scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
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mrk24 = NULL;
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mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, 0);
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if (mrk == NULL) {
|
|
DEBUG2_3(printk("%s(%ld): failed to allocate Marker IOCB.\n",
|
|
__func__, base_vha->host_no));
|
|
|
|
return (QLA_FUNCTION_FAILED);
|
|
}
|
|
|
|
mrk->entry_type = MARKER_TYPE;
|
|
mrk->modifier = type;
|
|
if (type != MK_SYNC_ALL) {
|
|
if (IS_FWI2_CAPABLE(ha)) {
|
|
mrk24 = (struct mrk_entry_24xx *) mrk;
|
|
mrk24->nport_handle = cpu_to_le16(loop_id);
|
|
mrk24->lun[1] = LSB(lun);
|
|
mrk24->lun[2] = MSB(lun);
|
|
host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun));
|
|
mrk24->vp_index = vha->vp_idx;
|
|
mrk24->handle = MAKE_HANDLE(req->id, mrk24->handle);
|
|
} else {
|
|
SET_TARGET_ID(ha, mrk->target, loop_id);
|
|
mrk->lun = cpu_to_le16(lun);
|
|
}
|
|
}
|
|
wmb();
|
|
|
|
qla2x00_isp_cmd(vha, req);
|
|
|
|
return (QLA_SUCCESS);
|
|
}
|
|
|
|
int
|
|
qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req,
|
|
struct rsp_que *rsp, uint16_t loop_id, uint16_t lun,
|
|
uint8_t type)
|
|
{
|
|
int ret;
|
|
unsigned long flags = 0;
|
|
|
|
spin_lock_irqsave(&vha->hw->hardware_lock, flags);
|
|
ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type);
|
|
spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
|
|
|
|
return (ret);
|
|
}
|
|
|
|
/**
|
|
* qla2x00_isp_cmd() - Modify the request ring pointer.
|
|
* @ha: HA context
|
|
*
|
|
* Note: The caller must hold the hardware lock before calling this routine.
|
|
*/
|
|
static void
|
|
qla2x00_isp_cmd(struct scsi_qla_host *vha, struct req_que *req)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id);
|
|
struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
|
|
|
|
DEBUG5(printk("%s(): IOCB data:\n", __func__));
|
|
DEBUG5(qla2x00_dump_buffer(
|
|
(uint8_t *)req->ring_ptr, REQUEST_ENTRY_SIZE));
|
|
|
|
/* Adjust ring index. */
|
|
req->ring_index++;
|
|
if (req->ring_index == req->length) {
|
|
req->ring_index = 0;
|
|
req->ring_ptr = req->ring;
|
|
} else
|
|
req->ring_ptr++;
|
|
|
|
/* Set chip new ring index. */
|
|
if (IS_QLA82XX(ha)) {
|
|
uint32_t dbval = 0x04 | (ha->portnum << 5);
|
|
|
|
/* write, read and verify logic */
|
|
dbval = dbval | (req->id << 8) | (req->ring_index << 16);
|
|
if (ql2xdbwr)
|
|
qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
|
|
else {
|
|
WRT_REG_DWORD(
|
|
(unsigned long __iomem *)ha->nxdb_wr_ptr,
|
|
dbval);
|
|
wmb();
|
|
while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
|
|
WRT_REG_DWORD((unsigned long __iomem *)
|
|
ha->nxdb_wr_ptr, dbval);
|
|
wmb();
|
|
}
|
|
}
|
|
} else if (ha->mqenable) {
|
|
/* Set chip new ring index. */
|
|
WRT_REG_DWORD(®->isp25mq.req_q_in, req->ring_index);
|
|
RD_REG_DWORD(&ioreg->hccr);
|
|
} else {
|
|
if (IS_FWI2_CAPABLE(ha)) {
|
|
WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index);
|
|
RD_REG_DWORD_RELAXED(®->isp24.req_q_in);
|
|
} else {
|
|
WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp),
|
|
req->ring_index);
|
|
RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp));
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* qla24xx_calc_iocbs() - Determine number of Command Type 3 and
|
|
* Continuation Type 1 IOCBs to allocate.
|
|
*
|
|
* @dsds: number of data segment decriptors needed
|
|
*
|
|
* Returns the number of IOCB entries needed to store @dsds.
|
|
*/
|
|
inline uint16_t
|
|
qla24xx_calc_iocbs(uint16_t dsds)
|
|
{
|
|
uint16_t iocbs;
|
|
|
|
iocbs = 1;
|
|
if (dsds > 1) {
|
|
iocbs += (dsds - 1) / 5;
|
|
if ((dsds - 1) % 5)
|
|
iocbs++;
|
|
}
|
|
DEBUG3(printk(KERN_DEBUG "%s(): Required PKT(s) = %d\n",
|
|
__func__, iocbs));
|
|
return iocbs;
|
|
}
|
|
|
|
/**
|
|
* qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7
|
|
* IOCB types.
|
|
*
|
|
* @sp: SRB command to process
|
|
* @cmd_pkt: Command type 3 IOCB
|
|
* @tot_dsds: Total number of segments to transfer
|
|
*/
|
|
inline void
|
|
qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
|
|
uint16_t tot_dsds)
|
|
{
|
|
uint16_t avail_dsds;
|
|
uint32_t *cur_dsd;
|
|
scsi_qla_host_t *vha;
|
|
struct scsi_cmnd *cmd;
|
|
struct scatterlist *sg;
|
|
int i;
|
|
struct req_que *req;
|
|
|
|
cmd = sp->cmd;
|
|
|
|
/* Update entry type to indicate Command Type 3 IOCB */
|
|
*((uint32_t *)(&cmd_pkt->entry_type)) =
|
|
__constant_cpu_to_le32(COMMAND_TYPE_7);
|
|
|
|
/* No data transfer */
|
|
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
|
|
cmd_pkt->byte_count = __constant_cpu_to_le32(0);
|
|
return;
|
|
}
|
|
|
|
vha = sp->fcport->vha;
|
|
req = vha->req;
|
|
|
|
/* Set transfer direction */
|
|
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
|
|
cmd_pkt->task_mgmt_flags =
|
|
__constant_cpu_to_le16(TMF_WRITE_DATA);
|
|
sp->fcport->vha->hw->qla_stats.output_bytes +=
|
|
scsi_bufflen(sp->cmd);
|
|
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
|
|
cmd_pkt->task_mgmt_flags =
|
|
__constant_cpu_to_le16(TMF_READ_DATA);
|
|
sp->fcport->vha->hw->qla_stats.input_bytes +=
|
|
scsi_bufflen(sp->cmd);
|
|
}
|
|
|
|
/* One DSD is available in the Command Type 3 IOCB */
|
|
avail_dsds = 1;
|
|
cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address;
|
|
|
|
/* Load data segments */
|
|
|
|
scsi_for_each_sg(cmd, sg, tot_dsds, i) {
|
|
dma_addr_t sle_dma;
|
|
cont_a64_entry_t *cont_pkt;
|
|
|
|
/* Allocate additional continuation packets? */
|
|
if (avail_dsds == 0) {
|
|
/*
|
|
* Five DSDs are available in the Continuation
|
|
* Type 1 IOCB.
|
|
*/
|
|
cont_pkt = qla2x00_prep_cont_type1_iocb(vha);
|
|
cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
|
|
avail_dsds = 5;
|
|
}
|
|
|
|
sle_dma = sg_dma_address(sg);
|
|
*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
|
|
avail_dsds--;
|
|
}
|
|
}
|
|
|
|
struct fw_dif_context {
|
|
uint32_t ref_tag;
|
|
uint16_t app_tag;
|
|
uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/
|
|
uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/
|
|
};
|
|
|
|
/*
|
|
* qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command
|
|
*
|
|
*/
|
|
static inline void
|
|
qla24xx_set_t10dif_tags(struct scsi_cmnd *cmd, struct fw_dif_context *pkt,
|
|
unsigned int protcnt)
|
|
{
|
|
struct sd_dif_tuple *spt;
|
|
unsigned char op = scsi_get_prot_op(cmd);
|
|
|
|
switch (scsi_get_prot_type(cmd)) {
|
|
/* For TYPE 0 protection: no checking */
|
|
case SCSI_PROT_DIF_TYPE0:
|
|
pkt->ref_tag_mask[0] = 0x00;
|
|
pkt->ref_tag_mask[1] = 0x00;
|
|
pkt->ref_tag_mask[2] = 0x00;
|
|
pkt->ref_tag_mask[3] = 0x00;
|
|
break;
|
|
|
|
/*
|
|
* For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to
|
|
* match LBA in CDB + N
|
|
*/
|
|
case SCSI_PROT_DIF_TYPE2:
|
|
if (!ql2xenablehba_err_chk)
|
|
break;
|
|
|
|
if (scsi_prot_sg_count(cmd)) {
|
|
spt = page_address(sg_page(scsi_prot_sglist(cmd))) +
|
|
scsi_prot_sglist(cmd)[0].offset;
|
|
pkt->app_tag = swab32(spt->app_tag);
|
|
pkt->app_tag_mask[0] = 0xff;
|
|
pkt->app_tag_mask[1] = 0xff;
|
|
}
|
|
|
|
pkt->ref_tag = cpu_to_le32((uint32_t)
|
|
(0xffffffff & scsi_get_lba(cmd)));
|
|
|
|
/* enable ALL bytes of the ref tag */
|
|
pkt->ref_tag_mask[0] = 0xff;
|
|
pkt->ref_tag_mask[1] = 0xff;
|
|
pkt->ref_tag_mask[2] = 0xff;
|
|
pkt->ref_tag_mask[3] = 0xff;
|
|
break;
|
|
|
|
/* For Type 3 protection: 16 bit GUARD only */
|
|
case SCSI_PROT_DIF_TYPE3:
|
|
pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] =
|
|
pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] =
|
|
0x00;
|
|
break;
|
|
|
|
/*
|
|
* For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and
|
|
* 16 bit app tag.
|
|
*/
|
|
case SCSI_PROT_DIF_TYPE1:
|
|
if (!ql2xenablehba_err_chk)
|
|
break;
|
|
|
|
if (protcnt && (op == SCSI_PROT_WRITE_STRIP ||
|
|
op == SCSI_PROT_WRITE_PASS)) {
|
|
spt = page_address(sg_page(scsi_prot_sglist(cmd))) +
|
|
scsi_prot_sglist(cmd)[0].offset;
|
|
DEBUG18(printk(KERN_DEBUG
|
|
"%s(): LBA from user %p, lba = 0x%x\n",
|
|
__func__, spt, (int)spt->ref_tag));
|
|
pkt->ref_tag = swab32(spt->ref_tag);
|
|
pkt->app_tag_mask[0] = 0x0;
|
|
pkt->app_tag_mask[1] = 0x0;
|
|
} else {
|
|
pkt->ref_tag = cpu_to_le32((uint32_t)
|
|
(0xffffffff & scsi_get_lba(cmd)));
|
|
pkt->app_tag = __constant_cpu_to_le16(0);
|
|
pkt->app_tag_mask[0] = 0x0;
|
|
pkt->app_tag_mask[1] = 0x0;
|
|
}
|
|
/* enable ALL bytes of the ref tag */
|
|
pkt->ref_tag_mask[0] = 0xff;
|
|
pkt->ref_tag_mask[1] = 0xff;
|
|
pkt->ref_tag_mask[2] = 0xff;
|
|
pkt->ref_tag_mask[3] = 0xff;
|
|
break;
|
|
}
|
|
|
|
DEBUG18(printk(KERN_DEBUG
|
|
"%s(): Setting protection Tags: (BIG) ref tag = 0x%x,"
|
|
" app tag = 0x%x, prot SG count %d , cmd lba 0x%x,"
|
|
" prot_type=%u\n", __func__, pkt->ref_tag, pkt->app_tag, protcnt,
|
|
(int)scsi_get_lba(cmd), scsi_get_prot_type(cmd)));
|
|
}
|
|
|
|
|
|
static int
|
|
qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd,
|
|
uint16_t tot_dsds)
|
|
{
|
|
void *next_dsd;
|
|
uint8_t avail_dsds = 0;
|
|
uint32_t dsd_list_len;
|
|
struct dsd_dma *dsd_ptr;
|
|
struct scatterlist *sg;
|
|
uint32_t *cur_dsd = dsd;
|
|
int i;
|
|
uint16_t used_dsds = tot_dsds;
|
|
|
|
uint8_t *cp;
|
|
|
|
scsi_for_each_sg(sp->cmd, sg, tot_dsds, i) {
|
|
dma_addr_t sle_dma;
|
|
|
|
/* Allocate additional continuation packets? */
|
|
if (avail_dsds == 0) {
|
|
avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
|
|
QLA_DSDS_PER_IOCB : used_dsds;
|
|
dsd_list_len = (avail_dsds + 1) * 12;
|
|
used_dsds -= avail_dsds;
|
|
|
|
/* allocate tracking DS */
|
|
dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
|
|
if (!dsd_ptr)
|
|
return 1;
|
|
|
|
/* allocate new list */
|
|
dsd_ptr->dsd_addr = next_dsd =
|
|
dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
|
|
&dsd_ptr->dsd_list_dma);
|
|
|
|
if (!next_dsd) {
|
|
/*
|
|
* Need to cleanup only this dsd_ptr, rest
|
|
* will be done by sp_free_dma()
|
|
*/
|
|
kfree(dsd_ptr);
|
|
return 1;
|
|
}
|
|
|
|
list_add_tail(&dsd_ptr->list,
|
|
&((struct crc_context *)sp->ctx)->dsd_list);
|
|
|
|
sp->flags |= SRB_CRC_CTX_DSD_VALID;
|
|
|
|
/* add new list to cmd iocb or last list */
|
|
*cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
|
|
*cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
|
|
*cur_dsd++ = dsd_list_len;
|
|
cur_dsd = (uint32_t *)next_dsd;
|
|
}
|
|
sle_dma = sg_dma_address(sg);
|
|
DEBUG18(printk("%s(): %p, sg entry %d - addr =0x%x 0x%x,"
|
|
" len =%d\n", __func__ , cur_dsd, i, LSD(sle_dma),
|
|
MSD(sle_dma), sg_dma_len(sg)));
|
|
*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
|
|
avail_dsds--;
|
|
|
|
if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) {
|
|
cp = page_address(sg_page(sg)) + sg->offset;
|
|
DEBUG18(printk("%s(): User Data buffer= %p:\n",
|
|
__func__ , cp));
|
|
}
|
|
}
|
|
/* Null termination */
|
|
*cur_dsd++ = 0;
|
|
*cur_dsd++ = 0;
|
|
*cur_dsd++ = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp,
|
|
uint32_t *dsd,
|
|
uint16_t tot_dsds)
|
|
{
|
|
void *next_dsd;
|
|
uint8_t avail_dsds = 0;
|
|
uint32_t dsd_list_len;
|
|
struct dsd_dma *dsd_ptr;
|
|
struct scatterlist *sg;
|
|
int i;
|
|
struct scsi_cmnd *cmd;
|
|
uint32_t *cur_dsd = dsd;
|
|
uint16_t used_dsds = tot_dsds;
|
|
|
|
uint8_t *cp;
|
|
|
|
|
|
cmd = sp->cmd;
|
|
scsi_for_each_prot_sg(cmd, sg, tot_dsds, i) {
|
|
dma_addr_t sle_dma;
|
|
|
|
/* Allocate additional continuation packets? */
|
|
if (avail_dsds == 0) {
|
|
avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
|
|
QLA_DSDS_PER_IOCB : used_dsds;
|
|
dsd_list_len = (avail_dsds + 1) * 12;
|
|
used_dsds -= avail_dsds;
|
|
|
|
/* allocate tracking DS */
|
|
dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
|
|
if (!dsd_ptr)
|
|
return 1;
|
|
|
|
/* allocate new list */
|
|
dsd_ptr->dsd_addr = next_dsd =
|
|
dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
|
|
&dsd_ptr->dsd_list_dma);
|
|
|
|
if (!next_dsd) {
|
|
/*
|
|
* Need to cleanup only this dsd_ptr, rest
|
|
* will be done by sp_free_dma()
|
|
*/
|
|
kfree(dsd_ptr);
|
|
return 1;
|
|
}
|
|
|
|
list_add_tail(&dsd_ptr->list,
|
|
&((struct crc_context *)sp->ctx)->dsd_list);
|
|
|
|
sp->flags |= SRB_CRC_CTX_DSD_VALID;
|
|
|
|
/* add new list to cmd iocb or last list */
|
|
*cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
|
|
*cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
|
|
*cur_dsd++ = dsd_list_len;
|
|
cur_dsd = (uint32_t *)next_dsd;
|
|
}
|
|
sle_dma = sg_dma_address(sg);
|
|
if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) {
|
|
DEBUG18(printk(KERN_DEBUG
|
|
"%s(): %p, sg entry %d - addr =0x%x"
|
|
"0x%x, len =%d\n", __func__ , cur_dsd, i,
|
|
LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg)));
|
|
}
|
|
*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
|
|
|
|
if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) {
|
|
cp = page_address(sg_page(sg)) + sg->offset;
|
|
DEBUG18(printk("%s(): Protection Data buffer = %p:\n",
|
|
__func__ , cp));
|
|
}
|
|
avail_dsds--;
|
|
}
|
|
/* Null termination */
|
|
*cur_dsd++ = 0;
|
|
*cur_dsd++ = 0;
|
|
*cur_dsd++ = 0;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command
|
|
* Type 6 IOCB types.
|
|
*
|
|
* @sp: SRB command to process
|
|
* @cmd_pkt: Command type 3 IOCB
|
|
* @tot_dsds: Total number of segments to transfer
|
|
*/
|
|
static inline int
|
|
qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt,
|
|
uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts)
|
|
{
|
|
uint32_t *cur_dsd, *fcp_dl;
|
|
scsi_qla_host_t *vha;
|
|
struct scsi_cmnd *cmd;
|
|
struct scatterlist *cur_seg;
|
|
int sgc;
|
|
uint32_t total_bytes;
|
|
uint32_t data_bytes;
|
|
uint32_t dif_bytes;
|
|
uint8_t bundling = 1;
|
|
uint16_t blk_size;
|
|
uint8_t *clr_ptr;
|
|
struct crc_context *crc_ctx_pkt = NULL;
|
|
struct qla_hw_data *ha;
|
|
uint8_t additional_fcpcdb_len;
|
|
uint16_t fcp_cmnd_len;
|
|
struct fcp_cmnd *fcp_cmnd;
|
|
dma_addr_t crc_ctx_dma;
|
|
char tag[2];
|
|
|
|
cmd = sp->cmd;
|
|
|
|
sgc = 0;
|
|
/* Update entry type to indicate Command Type CRC_2 IOCB */
|
|
*((uint32_t *)(&cmd_pkt->entry_type)) =
|
|
__constant_cpu_to_le32(COMMAND_TYPE_CRC_2);
|
|
|
|
/* No data transfer */
|
|
data_bytes = scsi_bufflen(cmd);
|
|
if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
|
|
DEBUG18(printk(KERN_INFO "%s: Zero data bytes or DMA-NONE %d\n",
|
|
__func__, data_bytes));
|
|
cmd_pkt->byte_count = __constant_cpu_to_le32(0);
|
|
return QLA_SUCCESS;
|
|
}
|
|
|
|
vha = sp->fcport->vha;
|
|
ha = vha->hw;
|
|
|
|
DEBUG18(printk(KERN_DEBUG
|
|
"%s(%ld): Executing cmd sp %p, prot_op=%u.\n", __func__,
|
|
vha->host_no, sp, scsi_get_prot_op(sp->cmd)));
|
|
|
|
cmd_pkt->vp_index = sp->fcport->vp_idx;
|
|
|
|
/* Set transfer direction */
|
|
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
|
|
cmd_pkt->control_flags =
|
|
__constant_cpu_to_le16(CF_WRITE_DATA);
|
|
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
|
|
cmd_pkt->control_flags =
|
|
__constant_cpu_to_le16(CF_READ_DATA);
|
|
}
|
|
|
|
tot_prot_dsds = scsi_prot_sg_count(cmd);
|
|
if (!tot_prot_dsds)
|
|
bundling = 0;
|
|
|
|
/* Allocate CRC context from global pool */
|
|
crc_ctx_pkt = sp->ctx = dma_pool_alloc(ha->dl_dma_pool,
|
|
GFP_ATOMIC, &crc_ctx_dma);
|
|
|
|
if (!crc_ctx_pkt)
|
|
goto crc_queuing_error;
|
|
|
|
/* Zero out CTX area. */
|
|
clr_ptr = (uint8_t *)crc_ctx_pkt;
|
|
memset(clr_ptr, 0, sizeof(*crc_ctx_pkt));
|
|
|
|
crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma;
|
|
|
|
sp->flags |= SRB_CRC_CTX_DMA_VALID;
|
|
|
|
/* Set handle */
|
|
crc_ctx_pkt->handle = cmd_pkt->handle;
|
|
|
|
INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list);
|
|
|
|
qla24xx_set_t10dif_tags(cmd, (struct fw_dif_context *)
|
|
&crc_ctx_pkt->ref_tag, tot_prot_dsds);
|
|
|
|
cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma));
|
|
cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma));
|
|
cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW;
|
|
|
|
/* Determine SCSI command length -- align to 4 byte boundary */
|
|
if (cmd->cmd_len > 16) {
|
|
DEBUG18(printk(KERN_INFO "%s(): **** SCSI CMD > 16\n",
|
|
__func__));
|
|
additional_fcpcdb_len = cmd->cmd_len - 16;
|
|
if ((cmd->cmd_len % 4) != 0) {
|
|
/* SCSI cmd > 16 bytes must be multiple of 4 */
|
|
goto crc_queuing_error;
|
|
}
|
|
fcp_cmnd_len = 12 + cmd->cmd_len + 4;
|
|
} else {
|
|
additional_fcpcdb_len = 0;
|
|
fcp_cmnd_len = 12 + 16 + 4;
|
|
}
|
|
|
|
fcp_cmnd = &crc_ctx_pkt->fcp_cmnd;
|
|
|
|
fcp_cmnd->additional_cdb_len = additional_fcpcdb_len;
|
|
if (cmd->sc_data_direction == DMA_TO_DEVICE)
|
|
fcp_cmnd->additional_cdb_len |= 1;
|
|
else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
|
|
fcp_cmnd->additional_cdb_len |= 2;
|
|
|
|
int_to_scsilun(sp->cmd->device->lun, &fcp_cmnd->lun);
|
|
host_to_fcp_swap((uint8_t *)&fcp_cmnd->lun, sizeof(fcp_cmnd->lun));
|
|
memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
|
|
cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len);
|
|
cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32(
|
|
LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF));
|
|
cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32(
|
|
MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF));
|
|
fcp_cmnd->task_management = 0;
|
|
|
|
/*
|
|
* Update tagged queuing modifier if using command tag queuing
|
|
*/
|
|
if (scsi_populate_tag_msg(cmd, tag)) {
|
|
switch (tag[0]) {
|
|
case HEAD_OF_QUEUE_TAG:
|
|
fcp_cmnd->task_attribute = TSK_HEAD_OF_QUEUE;
|
|
break;
|
|
case ORDERED_QUEUE_TAG:
|
|
fcp_cmnd->task_attribute = TSK_ORDERED;
|
|
break;
|
|
default:
|
|
fcp_cmnd->task_attribute = 0;
|
|
break;
|
|
}
|
|
} else {
|
|
fcp_cmnd->task_attribute = 0;
|
|
}
|
|
|
|
cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */
|
|
|
|
DEBUG18(printk(KERN_INFO "%s(%ld): Total SG(s) Entries %d, Data"
|
|
"entries %d, data bytes %d, Protection entries %d\n",
|
|
__func__, vha->host_no, tot_dsds, (tot_dsds-tot_prot_dsds),
|
|
data_bytes, tot_prot_dsds));
|
|
|
|
/* Compute dif len and adjust data len to incude protection */
|
|
total_bytes = data_bytes;
|
|
dif_bytes = 0;
|
|
blk_size = cmd->device->sector_size;
|
|
if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
|
|
dif_bytes = (data_bytes / blk_size) * 8;
|
|
total_bytes += dif_bytes;
|
|
}
|
|
|
|
if (!ql2xenablehba_err_chk)
|
|
fw_prot_opts |= 0x10; /* Disable Guard tag checking */
|
|
|
|
if (!bundling) {
|
|
cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address;
|
|
} else {
|
|
/*
|
|
* Configure Bundling if we need to fetch interlaving
|
|
* protection PCI accesses
|
|
*/
|
|
fw_prot_opts |= PO_ENABLE_DIF_BUNDLING;
|
|
crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes);
|
|
crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds -
|
|
tot_prot_dsds);
|
|
cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address;
|
|
}
|
|
|
|
/* Finish the common fields of CRC pkt */
|
|
crc_ctx_pkt->blk_size = cpu_to_le16(blk_size);
|
|
crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
|
|
crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
|
|
crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0);
|
|
/* Fibre channel byte count */
|
|
cmd_pkt->byte_count = cpu_to_le32(total_bytes);
|
|
fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 +
|
|
additional_fcpcdb_len);
|
|
*fcp_dl = htonl(total_bytes);
|
|
|
|
DEBUG18(printk(KERN_INFO "%s(%ld): dif bytes = 0x%x (%d), total bytes"
|
|
" = 0x%x (%d), dat block size =0x%x (%d)\n", __func__,
|
|
vha->host_no, dif_bytes, dif_bytes, total_bytes, total_bytes,
|
|
crc_ctx_pkt->blk_size, crc_ctx_pkt->blk_size));
|
|
|
|
if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
|
|
DEBUG18(printk(KERN_INFO "%s: Zero data bytes or DMA-NONE %d\n",
|
|
__func__, data_bytes));
|
|
cmd_pkt->byte_count = __constant_cpu_to_le32(0);
|
|
return QLA_SUCCESS;
|
|
}
|
|
/* Walks data segments */
|
|
|
|
cmd_pkt->control_flags |=
|
|
__constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE);
|
|
if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd,
|
|
(tot_dsds - tot_prot_dsds)))
|
|
goto crc_queuing_error;
|
|
|
|
if (bundling && tot_prot_dsds) {
|
|
/* Walks dif segments */
|
|
cur_seg = scsi_prot_sglist(cmd);
|
|
cmd_pkt->control_flags |=
|
|
__constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE);
|
|
cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address;
|
|
if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd,
|
|
tot_prot_dsds))
|
|
goto crc_queuing_error;
|
|
}
|
|
return QLA_SUCCESS;
|
|
|
|
crc_queuing_error:
|
|
DEBUG18(qla_printk(KERN_INFO, ha,
|
|
"CMD sent FAILED crc_q error:sp = %p\n", sp));
|
|
/* Cleanup will be performed by the caller */
|
|
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
|
|
/**
|
|
* qla24xx_start_scsi() - Send a SCSI command to the ISP
|
|
* @sp: command to send to the ISP
|
|
*
|
|
* Returns non-zero if a failure occurred, else zero.
|
|
*/
|
|
int
|
|
qla24xx_start_scsi(srb_t *sp)
|
|
{
|
|
int ret, nseg;
|
|
unsigned long flags;
|
|
uint32_t *clr_ptr;
|
|
uint32_t index;
|
|
uint32_t handle;
|
|
struct cmd_type_7 *cmd_pkt;
|
|
uint16_t cnt;
|
|
uint16_t req_cnt;
|
|
uint16_t tot_dsds;
|
|
struct req_que *req = NULL;
|
|
struct rsp_que *rsp = NULL;
|
|
struct scsi_cmnd *cmd = sp->cmd;
|
|
struct scsi_qla_host *vha = sp->fcport->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
char tag[2];
|
|
|
|
/* Setup device pointers. */
|
|
ret = 0;
|
|
|
|
qla25xx_set_que(sp, &rsp);
|
|
req = vha->req;
|
|
|
|
/* So we know we haven't pci_map'ed anything yet */
|
|
tot_dsds = 0;
|
|
|
|
/* Send marker if required */
|
|
if (vha->marker_needed != 0) {
|
|
if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL)
|
|
!= QLA_SUCCESS)
|
|
return QLA_FUNCTION_FAILED;
|
|
vha->marker_needed = 0;
|
|
}
|
|
|
|
/* Acquire ring specific lock */
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
|
|
/* Check for room in outstanding command list. */
|
|
handle = req->current_outstanding_cmd;
|
|
for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
|
|
handle++;
|
|
if (handle == MAX_OUTSTANDING_COMMANDS)
|
|
handle = 1;
|
|
if (!req->outstanding_cmds[handle])
|
|
break;
|
|
}
|
|
if (index == MAX_OUTSTANDING_COMMANDS)
|
|
goto queuing_error;
|
|
|
|
/* Map the sg table so we have an accurate count of sg entries needed */
|
|
if (scsi_sg_count(cmd)) {
|
|
nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
|
|
scsi_sg_count(cmd), cmd->sc_data_direction);
|
|
if (unlikely(!nseg))
|
|
goto queuing_error;
|
|
} else
|
|
nseg = 0;
|
|
|
|
tot_dsds = nseg;
|
|
|
|
req_cnt = qla24xx_calc_iocbs(tot_dsds);
|
|
if (req->cnt < (req_cnt + 2)) {
|
|
cnt = RD_REG_DWORD_RELAXED(req->req_q_out);
|
|
|
|
if (req->ring_index < cnt)
|
|
req->cnt = cnt - req->ring_index;
|
|
else
|
|
req->cnt = req->length -
|
|
(req->ring_index - cnt);
|
|
}
|
|
if (req->cnt < (req_cnt + 2))
|
|
goto queuing_error;
|
|
|
|
/* Build command packet. */
|
|
req->current_outstanding_cmd = handle;
|
|
req->outstanding_cmds[handle] = sp;
|
|
sp->handle = handle;
|
|
sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
|
|
req->cnt -= req_cnt;
|
|
|
|
cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
|
|
cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
|
|
|
|
/* Zero out remaining portion of packet. */
|
|
/* tagged queuing modifier -- default is TSK_SIMPLE (0). */
|
|
clr_ptr = (uint32_t *)cmd_pkt + 2;
|
|
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
|
|
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
|
|
|
|
/* Set NPORT-ID and LUN number*/
|
|
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
|
|
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
|
|
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
|
|
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
|
|
cmd_pkt->vp_index = sp->fcport->vp_idx;
|
|
|
|
int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
|
|
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
|
|
|
|
/* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */
|
|
if (scsi_populate_tag_msg(cmd, tag)) {
|
|
switch (tag[0]) {
|
|
case HEAD_OF_QUEUE_TAG:
|
|
cmd_pkt->task = TSK_HEAD_OF_QUEUE;
|
|
break;
|
|
case ORDERED_QUEUE_TAG:
|
|
cmd_pkt->task = TSK_ORDERED;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Load SCSI command packet. */
|
|
memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
|
|
host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
|
|
|
|
cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
|
|
|
|
/* Build IOCB segments */
|
|
qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds);
|
|
|
|
/* Set total data segment count. */
|
|
cmd_pkt->entry_count = (uint8_t)req_cnt;
|
|
/* Specify response queue number where completion should happen */
|
|
cmd_pkt->entry_status = (uint8_t) rsp->id;
|
|
wmb();
|
|
|
|
/* Adjust ring index. */
|
|
req->ring_index++;
|
|
if (req->ring_index == req->length) {
|
|
req->ring_index = 0;
|
|
req->ring_ptr = req->ring;
|
|
} else
|
|
req->ring_ptr++;
|
|
|
|
sp->flags |= SRB_DMA_VALID;
|
|
|
|
/* Set chip new ring index. */
|
|
WRT_REG_DWORD(req->req_q_in, req->ring_index);
|
|
RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr);
|
|
|
|
/* Manage unprocessed RIO/ZIO commands in response queue. */
|
|
if (vha->flags.process_response_queue &&
|
|
rsp->ring_ptr->signature != RESPONSE_PROCESSED)
|
|
qla24xx_process_response_queue(vha, rsp);
|
|
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
return QLA_SUCCESS;
|
|
|
|
queuing_error:
|
|
if (tot_dsds)
|
|
scsi_dma_unmap(cmd);
|
|
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
|
|
|
|
/**
|
|
* qla24xx_dif_start_scsi() - Send a SCSI command to the ISP
|
|
* @sp: command to send to the ISP
|
|
*
|
|
* Returns non-zero if a failure occurred, else zero.
|
|
*/
|
|
int
|
|
qla24xx_dif_start_scsi(srb_t *sp)
|
|
{
|
|
int nseg;
|
|
unsigned long flags;
|
|
uint32_t *clr_ptr;
|
|
uint32_t index;
|
|
uint32_t handle;
|
|
uint16_t cnt;
|
|
uint16_t req_cnt = 0;
|
|
uint16_t tot_dsds;
|
|
uint16_t tot_prot_dsds;
|
|
uint16_t fw_prot_opts = 0;
|
|
struct req_que *req = NULL;
|
|
struct rsp_que *rsp = NULL;
|
|
struct scsi_cmnd *cmd = sp->cmd;
|
|
struct scsi_qla_host *vha = sp->fcport->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct cmd_type_crc_2 *cmd_pkt;
|
|
uint32_t status = 0;
|
|
|
|
#define QDSS_GOT_Q_SPACE BIT_0
|
|
|
|
/* Only process protection or >16 cdb in this routine */
|
|
if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) {
|
|
if (cmd->cmd_len <= 16)
|
|
return qla24xx_start_scsi(sp);
|
|
}
|
|
|
|
/* Setup device pointers. */
|
|
|
|
qla25xx_set_que(sp, &rsp);
|
|
req = vha->req;
|
|
|
|
/* So we know we haven't pci_map'ed anything yet */
|
|
tot_dsds = 0;
|
|
|
|
/* Send marker if required */
|
|
if (vha->marker_needed != 0) {
|
|
if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) !=
|
|
QLA_SUCCESS)
|
|
return QLA_FUNCTION_FAILED;
|
|
vha->marker_needed = 0;
|
|
}
|
|
|
|
/* Acquire ring specific lock */
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
|
|
/* Check for room in outstanding command list. */
|
|
handle = req->current_outstanding_cmd;
|
|
for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
|
|
handle++;
|
|
if (handle == MAX_OUTSTANDING_COMMANDS)
|
|
handle = 1;
|
|
if (!req->outstanding_cmds[handle])
|
|
break;
|
|
}
|
|
|
|
if (index == MAX_OUTSTANDING_COMMANDS)
|
|
goto queuing_error;
|
|
|
|
/* Compute number of required data segments */
|
|
/* Map the sg table so we have an accurate count of sg entries needed */
|
|
if (scsi_sg_count(cmd)) {
|
|
nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
|
|
scsi_sg_count(cmd), cmd->sc_data_direction);
|
|
if (unlikely(!nseg))
|
|
goto queuing_error;
|
|
else
|
|
sp->flags |= SRB_DMA_VALID;
|
|
} else
|
|
nseg = 0;
|
|
|
|
/* number of required data segments */
|
|
tot_dsds = nseg;
|
|
|
|
/* Compute number of required protection segments */
|
|
if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) {
|
|
nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
|
|
scsi_prot_sg_count(cmd), cmd->sc_data_direction);
|
|
if (unlikely(!nseg))
|
|
goto queuing_error;
|
|
else
|
|
sp->flags |= SRB_CRC_PROT_DMA_VALID;
|
|
} else {
|
|
nseg = 0;
|
|
}
|
|
|
|
req_cnt = 1;
|
|
/* Total Data and protection sg segment(s) */
|
|
tot_prot_dsds = nseg;
|
|
tot_dsds += nseg;
|
|
if (req->cnt < (req_cnt + 2)) {
|
|
cnt = RD_REG_DWORD_RELAXED(req->req_q_out);
|
|
|
|
if (req->ring_index < cnt)
|
|
req->cnt = cnt - req->ring_index;
|
|
else
|
|
req->cnt = req->length -
|
|
(req->ring_index - cnt);
|
|
}
|
|
|
|
if (req->cnt < (req_cnt + 2))
|
|
goto queuing_error;
|
|
|
|
status |= QDSS_GOT_Q_SPACE;
|
|
|
|
/* Build header part of command packet (excluding the OPCODE). */
|
|
req->current_outstanding_cmd = handle;
|
|
req->outstanding_cmds[handle] = sp;
|
|
sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
|
|
req->cnt -= req_cnt;
|
|
|
|
/* Fill-in common area */
|
|
cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr;
|
|
cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
|
|
|
|
clr_ptr = (uint32_t *)cmd_pkt + 2;
|
|
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
|
|
|
|
/* Set NPORT-ID and LUN number*/
|
|
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
|
|
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
|
|
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
|
|
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
|
|
|
|
int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
|
|
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
|
|
|
|
/* Total Data and protection segment(s) */
|
|
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
|
|
|
|
/* Build IOCB segments and adjust for data protection segments */
|
|
if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *)
|
|
req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) !=
|
|
QLA_SUCCESS)
|
|
goto queuing_error;
|
|
|
|
cmd_pkt->entry_count = (uint8_t)req_cnt;
|
|
/* Specify response queue number where completion should happen */
|
|
cmd_pkt->entry_status = (uint8_t) rsp->id;
|
|
cmd_pkt->timeout = __constant_cpu_to_le16(0);
|
|
wmb();
|
|
|
|
/* Adjust ring index. */
|
|
req->ring_index++;
|
|
if (req->ring_index == req->length) {
|
|
req->ring_index = 0;
|
|
req->ring_ptr = req->ring;
|
|
} else
|
|
req->ring_ptr++;
|
|
|
|
/* Set chip new ring index. */
|
|
WRT_REG_DWORD(req->req_q_in, req->ring_index);
|
|
RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr);
|
|
|
|
/* Manage unprocessed RIO/ZIO commands in response queue. */
|
|
if (vha->flags.process_response_queue &&
|
|
rsp->ring_ptr->signature != RESPONSE_PROCESSED)
|
|
qla24xx_process_response_queue(vha, rsp);
|
|
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
return QLA_SUCCESS;
|
|
|
|
queuing_error:
|
|
if (status & QDSS_GOT_Q_SPACE) {
|
|
req->outstanding_cmds[handle] = NULL;
|
|
req->cnt += req_cnt;
|
|
}
|
|
/* Cleanup will be performed by the caller (queuecommand) */
|
|
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
DEBUG18(qla_printk(KERN_INFO, ha,
|
|
"CMD sent FAILED SCSI prot_op:%02x\n", scsi_get_prot_op(cmd)));
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
|
|
|
|
static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp)
|
|
{
|
|
struct scsi_cmnd *cmd = sp->cmd;
|
|
struct qla_hw_data *ha = sp->fcport->vha->hw;
|
|
int affinity = cmd->request->cpu;
|
|
|
|
if (ha->flags.cpu_affinity_enabled && affinity >= 0 &&
|
|
affinity < ha->max_rsp_queues - 1)
|
|
*rsp = ha->rsp_q_map[affinity + 1];
|
|
else
|
|
*rsp = ha->rsp_q_map[0];
|
|
}
|
|
|
|
/* Generic Control-SRB manipulation functions. */
|
|
void *
|
|
qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp)
|
|
{
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct req_que *req = ha->req_q_map[0];
|
|
device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id);
|
|
uint32_t index, handle;
|
|
request_t *pkt;
|
|
uint16_t cnt, req_cnt;
|
|
|
|
pkt = NULL;
|
|
req_cnt = 1;
|
|
handle = 0;
|
|
|
|
if (!sp)
|
|
goto skip_cmd_array;
|
|
|
|
/* Check for room in outstanding command list. */
|
|
handle = req->current_outstanding_cmd;
|
|
for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
|
|
handle++;
|
|
if (handle == MAX_OUTSTANDING_COMMANDS)
|
|
handle = 1;
|
|
if (!req->outstanding_cmds[handle])
|
|
break;
|
|
}
|
|
if (index == MAX_OUTSTANDING_COMMANDS)
|
|
goto queuing_error;
|
|
|
|
/* Prep command array. */
|
|
req->current_outstanding_cmd = handle;
|
|
req->outstanding_cmds[handle] = sp;
|
|
sp->handle = handle;
|
|
|
|
skip_cmd_array:
|
|
/* Check for room on request queue. */
|
|
if (req->cnt < req_cnt) {
|
|
if (ha->mqenable)
|
|
cnt = RD_REG_DWORD(®->isp25mq.req_q_out);
|
|
else if (IS_QLA82XX(ha))
|
|
cnt = RD_REG_DWORD(®->isp82.req_q_out);
|
|
else if (IS_FWI2_CAPABLE(ha))
|
|
cnt = RD_REG_DWORD(®->isp24.req_q_out);
|
|
else
|
|
cnt = qla2x00_debounce_register(
|
|
ISP_REQ_Q_OUT(ha, ®->isp));
|
|
|
|
if (req->ring_index < cnt)
|
|
req->cnt = cnt - req->ring_index;
|
|
else
|
|
req->cnt = req->length -
|
|
(req->ring_index - cnt);
|
|
}
|
|
if (req->cnt < req_cnt)
|
|
goto queuing_error;
|
|
|
|
/* Prep packet */
|
|
req->cnt -= req_cnt;
|
|
pkt = req->ring_ptr;
|
|
memset(pkt, 0, REQUEST_ENTRY_SIZE);
|
|
pkt->entry_count = req_cnt;
|
|
pkt->handle = handle;
|
|
|
|
queuing_error:
|
|
return pkt;
|
|
}
|
|
|
|
static void
|
|
qla2x00_start_iocbs(srb_t *sp)
|
|
{
|
|
struct qla_hw_data *ha = sp->fcport->vha->hw;
|
|
struct req_que *req = ha->req_q_map[0];
|
|
device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id);
|
|
struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
|
|
|
|
if (IS_QLA82XX(ha)) {
|
|
qla82xx_start_iocbs(sp);
|
|
} else {
|
|
/* Adjust ring index. */
|
|
req->ring_index++;
|
|
if (req->ring_index == req->length) {
|
|
req->ring_index = 0;
|
|
req->ring_ptr = req->ring;
|
|
} else
|
|
req->ring_ptr++;
|
|
|
|
/* Set chip new ring index. */
|
|
if (ha->mqenable) {
|
|
WRT_REG_DWORD(®->isp25mq.req_q_in, req->ring_index);
|
|
RD_REG_DWORD(&ioreg->hccr);
|
|
} else if (IS_QLA82XX(ha)) {
|
|
qla82xx_start_iocbs(sp);
|
|
} else if (IS_FWI2_CAPABLE(ha)) {
|
|
WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index);
|
|
RD_REG_DWORD_RELAXED(®->isp24.req_q_in);
|
|
} else {
|
|
WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp),
|
|
req->ring_index);
|
|
RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio)
|
|
{
|
|
struct srb_ctx *ctx = sp->ctx;
|
|
struct srb_iocb *lio = ctx->u.iocb_cmd;
|
|
|
|
logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
|
|
logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI);
|
|
if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI)
|
|
logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI);
|
|
if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI)
|
|
logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI);
|
|
logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
|
|
logio->port_id[0] = sp->fcport->d_id.b.al_pa;
|
|
logio->port_id[1] = sp->fcport->d_id.b.area;
|
|
logio->port_id[2] = sp->fcport->d_id.b.domain;
|
|
logio->vp_index = sp->fcport->vp_idx;
|
|
}
|
|
|
|
static void
|
|
qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx)
|
|
{
|
|
struct qla_hw_data *ha = sp->fcport->vha->hw;
|
|
struct srb_ctx *ctx = sp->ctx;
|
|
struct srb_iocb *lio = ctx->u.iocb_cmd;
|
|
uint16_t opts;
|
|
|
|
mbx->entry_type = MBX_IOCB_TYPE;
|
|
SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
|
|
mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT);
|
|
opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0;
|
|
opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0;
|
|
if (HAS_EXTENDED_IDS(ha)) {
|
|
mbx->mb1 = cpu_to_le16(sp->fcport->loop_id);
|
|
mbx->mb10 = cpu_to_le16(opts);
|
|
} else {
|
|
mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts);
|
|
}
|
|
mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
|
|
mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
|
|
sp->fcport->d_id.b.al_pa);
|
|
mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx);
|
|
}
|
|
|
|
static void
|
|
qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio)
|
|
{
|
|
logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
|
|
logio->control_flags =
|
|
cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO);
|
|
logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
|
|
logio->port_id[0] = sp->fcport->d_id.b.al_pa;
|
|
logio->port_id[1] = sp->fcport->d_id.b.area;
|
|
logio->port_id[2] = sp->fcport->d_id.b.domain;
|
|
logio->vp_index = sp->fcport->vp_idx;
|
|
}
|
|
|
|
static void
|
|
qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx)
|
|
{
|
|
struct qla_hw_data *ha = sp->fcport->vha->hw;
|
|
|
|
mbx->entry_type = MBX_IOCB_TYPE;
|
|
SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
|
|
mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT);
|
|
mbx->mb1 = HAS_EXTENDED_IDS(ha) ?
|
|
cpu_to_le16(sp->fcport->loop_id):
|
|
cpu_to_le16(sp->fcport->loop_id << 8);
|
|
mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
|
|
mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
|
|
sp->fcport->d_id.b.al_pa);
|
|
mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx);
|
|
/* Implicit: mbx->mbx10 = 0. */
|
|
}
|
|
|
|
static void
|
|
qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio)
|
|
{
|
|
logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
|
|
logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC);
|
|
logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
|
|
logio->vp_index = sp->fcport->vp_idx;
|
|
}
|
|
|
|
static void
|
|
qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx)
|
|
{
|
|
struct qla_hw_data *ha = sp->fcport->vha->hw;
|
|
|
|
mbx->entry_type = MBX_IOCB_TYPE;
|
|
SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
|
|
mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE);
|
|
if (HAS_EXTENDED_IDS(ha)) {
|
|
mbx->mb1 = cpu_to_le16(sp->fcport->loop_id);
|
|
mbx->mb10 = cpu_to_le16(BIT_0);
|
|
} else {
|
|
mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0);
|
|
}
|
|
mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma));
|
|
mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma));
|
|
mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma)));
|
|
mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma)));
|
|
mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx);
|
|
}
|
|
|
|
static void
|
|
qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk)
|
|
{
|
|
uint32_t flags;
|
|
unsigned int lun;
|
|
struct fc_port *fcport = sp->fcport;
|
|
scsi_qla_host_t *vha = fcport->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct srb_ctx *ctx = sp->ctx;
|
|
struct srb_iocb *iocb = ctx->u.iocb_cmd;
|
|
struct req_que *req = vha->req;
|
|
|
|
flags = iocb->u.tmf.flags;
|
|
lun = iocb->u.tmf.lun;
|
|
|
|
tsk->entry_type = TSK_MGMT_IOCB_TYPE;
|
|
tsk->entry_count = 1;
|
|
tsk->handle = MAKE_HANDLE(req->id, tsk->handle);
|
|
tsk->nport_handle = cpu_to_le16(fcport->loop_id);
|
|
tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
|
|
tsk->control_flags = cpu_to_le32(flags);
|
|
tsk->port_id[0] = fcport->d_id.b.al_pa;
|
|
tsk->port_id[1] = fcport->d_id.b.area;
|
|
tsk->port_id[2] = fcport->d_id.b.domain;
|
|
tsk->vp_index = fcport->vp_idx;
|
|
|
|
if (flags == TCF_LUN_RESET) {
|
|
int_to_scsilun(lun, &tsk->lun);
|
|
host_to_fcp_swap((uint8_t *)&tsk->lun,
|
|
sizeof(tsk->lun));
|
|
}
|
|
}
|
|
|
|
static void
|
|
qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
|
|
{
|
|
struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job;
|
|
|
|
els_iocb->entry_type = ELS_IOCB_TYPE;
|
|
els_iocb->entry_count = 1;
|
|
els_iocb->sys_define = 0;
|
|
els_iocb->entry_status = 0;
|
|
els_iocb->handle = sp->handle;
|
|
els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
|
|
els_iocb->tx_dsd_count = __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt);
|
|
els_iocb->vp_index = sp->fcport->vp_idx;
|
|
els_iocb->sof_type = EST_SOFI3;
|
|
els_iocb->rx_dsd_count = __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt);
|
|
|
|
els_iocb->opcode =
|
|
(((struct srb_ctx *)sp->ctx)->type == SRB_ELS_CMD_RPT) ?
|
|
bsg_job->request->rqst_data.r_els.els_code :
|
|
bsg_job->request->rqst_data.h_els.command_code;
|
|
els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
|
|
els_iocb->port_id[1] = sp->fcport->d_id.b.area;
|
|
els_iocb->port_id[2] = sp->fcport->d_id.b.domain;
|
|
els_iocb->control_flags = 0;
|
|
els_iocb->rx_byte_count =
|
|
cpu_to_le32(bsg_job->reply_payload.payload_len);
|
|
els_iocb->tx_byte_count =
|
|
cpu_to_le32(bsg_job->request_payload.payload_len);
|
|
|
|
els_iocb->tx_address[0] = cpu_to_le32(LSD(sg_dma_address
|
|
(bsg_job->request_payload.sg_list)));
|
|
els_iocb->tx_address[1] = cpu_to_le32(MSD(sg_dma_address
|
|
(bsg_job->request_payload.sg_list)));
|
|
els_iocb->tx_len = cpu_to_le32(sg_dma_len
|
|
(bsg_job->request_payload.sg_list));
|
|
|
|
els_iocb->rx_address[0] = cpu_to_le32(LSD(sg_dma_address
|
|
(bsg_job->reply_payload.sg_list)));
|
|
els_iocb->rx_address[1] = cpu_to_le32(MSD(sg_dma_address
|
|
(bsg_job->reply_payload.sg_list)));
|
|
els_iocb->rx_len = cpu_to_le32(sg_dma_len
|
|
(bsg_job->reply_payload.sg_list));
|
|
}
|
|
|
|
static void
|
|
qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb)
|
|
{
|
|
uint16_t avail_dsds;
|
|
uint32_t *cur_dsd;
|
|
struct scatterlist *sg;
|
|
int index;
|
|
uint16_t tot_dsds;
|
|
scsi_qla_host_t *vha = sp->fcport->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job;
|
|
int loop_iterartion = 0;
|
|
int cont_iocb_prsnt = 0;
|
|
int entry_count = 1;
|
|
|
|
memset(ct_iocb, 0, sizeof(ms_iocb_entry_t));
|
|
ct_iocb->entry_type = CT_IOCB_TYPE;
|
|
ct_iocb->entry_status = 0;
|
|
ct_iocb->handle1 = sp->handle;
|
|
SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id);
|
|
ct_iocb->status = __constant_cpu_to_le16(0);
|
|
ct_iocb->control_flags = __constant_cpu_to_le16(0);
|
|
ct_iocb->timeout = 0;
|
|
ct_iocb->cmd_dsd_count =
|
|
__constant_cpu_to_le16(bsg_job->request_payload.sg_cnt);
|
|
ct_iocb->total_dsd_count =
|
|
__constant_cpu_to_le16(bsg_job->request_payload.sg_cnt + 1);
|
|
ct_iocb->req_bytecount =
|
|
cpu_to_le32(bsg_job->request_payload.payload_len);
|
|
ct_iocb->rsp_bytecount =
|
|
cpu_to_le32(bsg_job->reply_payload.payload_len);
|
|
|
|
ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address
|
|
(bsg_job->request_payload.sg_list)));
|
|
ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address
|
|
(bsg_job->request_payload.sg_list)));
|
|
ct_iocb->dseg_req_length = ct_iocb->req_bytecount;
|
|
|
|
ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address
|
|
(bsg_job->reply_payload.sg_list)));
|
|
ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address
|
|
(bsg_job->reply_payload.sg_list)));
|
|
ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount;
|
|
|
|
avail_dsds = 1;
|
|
cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address;
|
|
index = 0;
|
|
tot_dsds = bsg_job->reply_payload.sg_cnt;
|
|
|
|
for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) {
|
|
dma_addr_t sle_dma;
|
|
cont_a64_entry_t *cont_pkt;
|
|
|
|
/* Allocate additional continuation packets? */
|
|
if (avail_dsds == 0) {
|
|
/*
|
|
* Five DSDs are available in the Cont.
|
|
* Type 1 IOCB.
|
|
*/
|
|
cont_pkt = qla2x00_prep_cont_type1_iocb(vha);
|
|
cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
|
|
avail_dsds = 5;
|
|
cont_iocb_prsnt = 1;
|
|
entry_count++;
|
|
}
|
|
|
|
sle_dma = sg_dma_address(sg);
|
|
*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
|
|
loop_iterartion++;
|
|
avail_dsds--;
|
|
}
|
|
ct_iocb->entry_count = entry_count;
|
|
}
|
|
|
|
static void
|
|
qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb)
|
|
{
|
|
uint16_t avail_dsds;
|
|
uint32_t *cur_dsd;
|
|
struct scatterlist *sg;
|
|
int index;
|
|
uint16_t tot_dsds;
|
|
scsi_qla_host_t *vha = sp->fcport->vha;
|
|
struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job;
|
|
int loop_iterartion = 0;
|
|
int cont_iocb_prsnt = 0;
|
|
int entry_count = 1;
|
|
|
|
ct_iocb->entry_type = CT_IOCB_TYPE;
|
|
ct_iocb->entry_status = 0;
|
|
ct_iocb->sys_define = 0;
|
|
ct_iocb->handle = sp->handle;
|
|
|
|
ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
|
|
ct_iocb->vp_index = sp->fcport->vp_idx;
|
|
ct_iocb->comp_status = __constant_cpu_to_le16(0);
|
|
|
|
ct_iocb->cmd_dsd_count =
|
|
__constant_cpu_to_le16(bsg_job->request_payload.sg_cnt);
|
|
ct_iocb->timeout = 0;
|
|
ct_iocb->rsp_dsd_count =
|
|
__constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt);
|
|
ct_iocb->rsp_byte_count =
|
|
cpu_to_le32(bsg_job->reply_payload.payload_len);
|
|
ct_iocb->cmd_byte_count =
|
|
cpu_to_le32(bsg_job->request_payload.payload_len);
|
|
ct_iocb->dseg_0_address[0] = cpu_to_le32(LSD(sg_dma_address
|
|
(bsg_job->request_payload.sg_list)));
|
|
ct_iocb->dseg_0_address[1] = cpu_to_le32(MSD(sg_dma_address
|
|
(bsg_job->request_payload.sg_list)));
|
|
ct_iocb->dseg_0_len = cpu_to_le32(sg_dma_len
|
|
(bsg_job->request_payload.sg_list));
|
|
|
|
avail_dsds = 1;
|
|
cur_dsd = (uint32_t *)ct_iocb->dseg_1_address;
|
|
index = 0;
|
|
tot_dsds = bsg_job->reply_payload.sg_cnt;
|
|
|
|
for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) {
|
|
dma_addr_t sle_dma;
|
|
cont_a64_entry_t *cont_pkt;
|
|
|
|
/* Allocate additional continuation packets? */
|
|
if (avail_dsds == 0) {
|
|
/*
|
|
* Five DSDs are available in the Cont.
|
|
* Type 1 IOCB.
|
|
*/
|
|
cont_pkt = qla2x00_prep_cont_type1_iocb(vha);
|
|
cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
|
|
avail_dsds = 5;
|
|
cont_iocb_prsnt = 1;
|
|
entry_count++;
|
|
}
|
|
|
|
sle_dma = sg_dma_address(sg);
|
|
*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
|
|
loop_iterartion++;
|
|
avail_dsds--;
|
|
}
|
|
ct_iocb->entry_count = entry_count;
|
|
}
|
|
|
|
int
|
|
qla2x00_start_sp(srb_t *sp)
|
|
{
|
|
int rval;
|
|
struct qla_hw_data *ha = sp->fcport->vha->hw;
|
|
void *pkt;
|
|
struct srb_ctx *ctx = sp->ctx;
|
|
unsigned long flags;
|
|
|
|
rval = QLA_FUNCTION_FAILED;
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
pkt = qla2x00_alloc_iocbs(sp->fcport->vha, sp);
|
|
if (!pkt)
|
|
goto done;
|
|
|
|
rval = QLA_SUCCESS;
|
|
switch (ctx->type) {
|
|
case SRB_LOGIN_CMD:
|
|
IS_FWI2_CAPABLE(ha) ?
|
|
qla24xx_login_iocb(sp, pkt) :
|
|
qla2x00_login_iocb(sp, pkt);
|
|
break;
|
|
case SRB_LOGOUT_CMD:
|
|
IS_FWI2_CAPABLE(ha) ?
|
|
qla24xx_logout_iocb(sp, pkt) :
|
|
qla2x00_logout_iocb(sp, pkt);
|
|
break;
|
|
case SRB_ELS_CMD_RPT:
|
|
case SRB_ELS_CMD_HST:
|
|
qla24xx_els_iocb(sp, pkt);
|
|
break;
|
|
case SRB_CT_CMD:
|
|
IS_FWI2_CAPABLE(ha) ?
|
|
qla24xx_ct_iocb(sp, pkt) :
|
|
qla2x00_ct_iocb(sp, pkt);
|
|
break;
|
|
case SRB_ADISC_CMD:
|
|
IS_FWI2_CAPABLE(ha) ?
|
|
qla24xx_adisc_iocb(sp, pkt) :
|
|
qla2x00_adisc_iocb(sp, pkt);
|
|
break;
|
|
case SRB_TM_CMD:
|
|
qla24xx_tm_iocb(sp, pkt);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
wmb();
|
|
qla2x00_start_iocbs(sp);
|
|
done:
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
return rval;
|
|
}
|