4b4f30ccbb
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2869 lines
76 KiB
C
2869 lines
76 KiB
C
/*
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* QLogic Fibre Channel HBA Driver
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* Copyright (c) 2003-2013 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 "qla_target.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 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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struct scsi_cmnd *cmd = GET_CMD_SP(sp);
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struct scsi_qla_host *vha = sp->fcport->vha;
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cflags = 0;
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/* Set transfer direction */
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if (cmd->sc_data_direction == DMA_TO_DEVICE) {
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cflags = CF_WRITE;
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vha->qla_stats.output_bytes += scsi_bufflen(cmd);
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vha->qla_stats.output_requests++;
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} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
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cflags = CF_READ;
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vha->qla_stats.input_bytes += scsi_bufflen(cmd);
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vha->qla_stats.input_requests++;
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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, struct req_que *req)
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{
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cont_a64_entry_t *cont_pkt;
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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)) = IS_QLAFX00(vha->hw) ?
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__constant_cpu_to_le32(CONTINUE_A64_TYPE_FX00) :
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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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struct scsi_cmnd *cmd = GET_CMD_SP(sp);
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uint8_t guard = scsi_host_get_guard(cmd->device->host);
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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(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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case SCSI_PROT_WRITE_PASS:
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if (guard & SHOST_DIX_GUARD_IP)
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*fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM;
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else
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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(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 = GET_CMD_SP(sp);
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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 = GET_CMD_SP(sp);
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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, vha->req);
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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 = GET_CMD_SP(sp);
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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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}
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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 < req->num_outstanding_cmds; index++) {
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handle++;
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if (handle == req->num_outstanding_cmds)
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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 == req->num_outstanding_cmds)
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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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/* If still no head room then bail out */
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if (req->cnt < (req_cnt + 2))
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goto queuing_error;
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}
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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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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(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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} else {
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cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG);
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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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|
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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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|
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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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|
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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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|
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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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|
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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_start_iocbs() - Execute the IOCB command
|
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*/
|
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void
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qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req)
|
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{
|
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struct qla_hw_data *ha = vha->hw;
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device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id);
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|
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if (IS_P3P_TYPE(ha)) {
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qla82xx_start_iocbs(vha);
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} else {
|
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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;
|
|
req->ring_ptr = req->ring;
|
|
} else
|
|
req->ring_ptr++;
|
|
|
|
/* Set chip new ring index. */
|
|
if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
|
|
WRT_REG_DWORD(req->req_q_in, req->ring_index);
|
|
RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr);
|
|
} else if (IS_QLAFX00(ha)) {
|
|
WRT_REG_DWORD(®->ispfx00.req_q_in, req->ring_index);
|
|
RD_REG_DWORD_RELAXED(®->ispfx00.req_q_in);
|
|
QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
|
|
} 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));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* qla2x00_marker() - Send a marker IOCB to the firmware.
|
|
* @ha: HA context
|
|
* @loop_id: loop ID
|
|
* @lun: LUN
|
|
* @type: marker modifier
|
|
*
|
|
* Can be called from both normal and interrupt context.
|
|
*
|
|
* Returns non-zero if a failure occurred, else zero.
|
|
*/
|
|
static 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)
|
|
{
|
|
mrk_entry_t *mrk;
|
|
struct mrk_entry_24xx *mrk24 = NULL;
|
|
|
|
struct qla_hw_data *ha = vha->hw;
|
|
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
|
|
|
|
req = ha->req_q_map[0];
|
|
mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, NULL);
|
|
if (mrk == NULL) {
|
|
ql_log(ql_log_warn, base_vha, 0x3026,
|
|
"Failed to allocate Marker IOCB.\n");
|
|
|
|
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_start_iocbs(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_issue_marker
|
|
*
|
|
* Issue marker
|
|
* Caller CAN have hardware lock held as specified by ha_locked parameter.
|
|
* Might release it, then reaquire.
|
|
*/
|
|
int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked)
|
|
{
|
|
if (ha_locked) {
|
|
if (__qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0,
|
|
MK_SYNC_ALL) != QLA_SUCCESS)
|
|
return QLA_FUNCTION_FAILED;
|
|
} else {
|
|
if (qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0,
|
|
MK_SYNC_ALL) != QLA_SUCCESS)
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
vha->marker_needed = 0;
|
|
|
|
return QLA_SUCCESS;
|
|
}
|
|
|
|
static inline int
|
|
qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
|
|
uint16_t tot_dsds)
|
|
{
|
|
uint32_t *cur_dsd = NULL;
|
|
scsi_qla_host_t *vha;
|
|
struct qla_hw_data *ha;
|
|
struct scsi_cmnd *cmd;
|
|
struct scatterlist *cur_seg;
|
|
uint32_t *dsd_seg;
|
|
void *next_dsd;
|
|
uint8_t avail_dsds;
|
|
uint8_t first_iocb = 1;
|
|
uint32_t dsd_list_len;
|
|
struct dsd_dma *dsd_ptr;
|
|
struct ct6_dsd *ctx;
|
|
|
|
cmd = GET_CMD_SP(sp);
|
|
|
|
/* Update entry type to indicate Command Type 3 IOCB */
|
|
*((uint32_t *)(&cmd_pkt->entry_type)) =
|
|
__constant_cpu_to_le32(COMMAND_TYPE_6);
|
|
|
|
/* No data transfer */
|
|
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
|
|
cmd_pkt->byte_count = __constant_cpu_to_le32(0);
|
|
return 0;
|
|
}
|
|
|
|
vha = sp->fcport->vha;
|
|
ha = vha->hw;
|
|
|
|
/* Set transfer direction */
|
|
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
|
|
cmd_pkt->control_flags =
|
|
__constant_cpu_to_le16(CF_WRITE_DATA);
|
|
vha->qla_stats.output_bytes += scsi_bufflen(cmd);
|
|
vha->qla_stats.output_requests++;
|
|
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
|
|
cmd_pkt->control_flags =
|
|
__constant_cpu_to_le16(CF_READ_DATA);
|
|
vha->qla_stats.input_bytes += scsi_bufflen(cmd);
|
|
vha->qla_stats.input_requests++;
|
|
}
|
|
|
|
cur_seg = scsi_sglist(cmd);
|
|
ctx = GET_CMD_CTX_SP(sp);
|
|
|
|
while (tot_dsds) {
|
|
avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ?
|
|
QLA_DSDS_PER_IOCB : tot_dsds;
|
|
tot_dsds -= avail_dsds;
|
|
dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
|
|
|
|
dsd_ptr = list_first_entry(&ha->gbl_dsd_list,
|
|
struct dsd_dma, list);
|
|
next_dsd = dsd_ptr->dsd_addr;
|
|
list_del(&dsd_ptr->list);
|
|
ha->gbl_dsd_avail--;
|
|
list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
|
|
ctx->dsd_use_cnt++;
|
|
ha->gbl_dsd_inuse++;
|
|
|
|
if (first_iocb) {
|
|
first_iocb = 0;
|
|
dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address;
|
|
*dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
|
|
*dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
|
|
cmd_pkt->fcp_data_dseg_len = cpu_to_le32(dsd_list_len);
|
|
} else {
|
|
*cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
|
|
*cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
|
|
*cur_dsd++ = cpu_to_le32(dsd_list_len);
|
|
}
|
|
cur_dsd = (uint32_t *)next_dsd;
|
|
while (avail_dsds) {
|
|
dma_addr_t sle_dma;
|
|
|
|
sle_dma = sg_dma_address(cur_seg);
|
|
*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg));
|
|
cur_seg = sg_next(cur_seg);
|
|
avail_dsds--;
|
|
}
|
|
}
|
|
|
|
/* Null termination */
|
|
*cur_dsd++ = 0;
|
|
*cur_dsd++ = 0;
|
|
*cur_dsd++ = 0;
|
|
cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* qla24xx_calc_dsd_lists() - Determine number of DSD list required
|
|
* for Command Type 6.
|
|
*
|
|
* @dsds: number of data segment decriptors needed
|
|
*
|
|
* Returns the number of dsd list needed to store @dsds.
|
|
*/
|
|
inline uint16_t
|
|
qla24xx_calc_dsd_lists(uint16_t dsds)
|
|
{
|
|
uint16_t dsd_lists = 0;
|
|
|
|
dsd_lists = (dsds/QLA_DSDS_PER_IOCB);
|
|
if (dsds % QLA_DSDS_PER_IOCB)
|
|
dsd_lists++;
|
|
return dsd_lists;
|
|
}
|
|
|
|
|
|
/**
|
|
* 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 = GET_CMD_SP(sp);
|
|
|
|
/* 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);
|
|
vha->qla_stats.output_bytes += scsi_bufflen(cmd);
|
|
vha->qla_stats.output_requests++;
|
|
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
|
|
cmd_pkt->task_mgmt_flags =
|
|
__constant_cpu_to_le16(TMF_READ_DATA);
|
|
vha->qla_stats.input_bytes += scsi_bufflen(cmd);
|
|
vha->qla_stats.input_requests++;
|
|
}
|
|
|
|
/* 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, vha->req);
|
|
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(srb_t *sp, struct fw_dif_context *pkt,
|
|
unsigned int protcnt)
|
|
{
|
|
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
|
|
|
|
switch (scsi_get_prot_type(cmd)) {
|
|
case SCSI_PROT_DIF_TYPE0:
|
|
/*
|
|
* No check for ql2xenablehba_err_chk, as it would be an
|
|
* I/O error if hba tag generation is not done.
|
|
*/
|
|
pkt->ref_tag = cpu_to_le32((uint32_t)
|
|
(0xffffffff & scsi_get_lba(cmd)));
|
|
|
|
if (!qla2x00_hba_err_chk_enabled(sp))
|
|
break;
|
|
|
|
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 2 protection: 16 bit GUARD + 32 bit REF tag has to
|
|
* match LBA in CDB + N
|
|
*/
|
|
case SCSI_PROT_DIF_TYPE2:
|
|
pkt->app_tag = __constant_cpu_to_le16(0);
|
|
pkt->app_tag_mask[0] = 0x0;
|
|
pkt->app_tag_mask[1] = 0x0;
|
|
|
|
pkt->ref_tag = cpu_to_le32((uint32_t)
|
|
(0xffffffff & scsi_get_lba(cmd)));
|
|
|
|
if (!qla2x00_hba_err_chk_enabled(sp))
|
|
break;
|
|
|
|
/* 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:
|
|
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;
|
|
|
|
if (!qla2x00_hba_err_chk_enabled(sp))
|
|
break;
|
|
|
|
/* 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;
|
|
}
|
|
}
|
|
|
|
struct qla2_sgx {
|
|
dma_addr_t dma_addr; /* OUT */
|
|
uint32_t dma_len; /* OUT */
|
|
|
|
uint32_t tot_bytes; /* IN */
|
|
struct scatterlist *cur_sg; /* IN */
|
|
|
|
/* for book keeping, bzero on initial invocation */
|
|
uint32_t bytes_consumed;
|
|
uint32_t num_bytes;
|
|
uint32_t tot_partial;
|
|
|
|
/* for debugging */
|
|
uint32_t num_sg;
|
|
srb_t *sp;
|
|
};
|
|
|
|
static int
|
|
qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx,
|
|
uint32_t *partial)
|
|
{
|
|
struct scatterlist *sg;
|
|
uint32_t cumulative_partial, sg_len;
|
|
dma_addr_t sg_dma_addr;
|
|
|
|
if (sgx->num_bytes == sgx->tot_bytes)
|
|
return 0;
|
|
|
|
sg = sgx->cur_sg;
|
|
cumulative_partial = sgx->tot_partial;
|
|
|
|
sg_dma_addr = sg_dma_address(sg);
|
|
sg_len = sg_dma_len(sg);
|
|
|
|
sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed;
|
|
|
|
if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) {
|
|
sgx->dma_len = (blk_sz - cumulative_partial);
|
|
sgx->tot_partial = 0;
|
|
sgx->num_bytes += blk_sz;
|
|
*partial = 0;
|
|
} else {
|
|
sgx->dma_len = sg_len - sgx->bytes_consumed;
|
|
sgx->tot_partial += sgx->dma_len;
|
|
*partial = 1;
|
|
}
|
|
|
|
sgx->bytes_consumed += sgx->dma_len;
|
|
|
|
if (sg_len == sgx->bytes_consumed) {
|
|
sg = sg_next(sg);
|
|
sgx->num_sg++;
|
|
sgx->cur_sg = sg;
|
|
sgx->bytes_consumed = 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
qla24xx_walk_and_build_sglist_no_difb(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_prot;
|
|
uint32_t *cur_dsd = dsd;
|
|
uint16_t used_dsds = tot_dsds;
|
|
|
|
uint32_t prot_int;
|
|
uint32_t partial;
|
|
struct qla2_sgx sgx;
|
|
dma_addr_t sle_dma;
|
|
uint32_t sle_dma_len, tot_prot_dma_len = 0;
|
|
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
|
|
|
|
prot_int = cmd->device->sector_size;
|
|
|
|
memset(&sgx, 0, sizeof(struct qla2_sgx));
|
|
sgx.tot_bytes = scsi_bufflen(cmd);
|
|
sgx.cur_sg = scsi_sglist(cmd);
|
|
sgx.sp = sp;
|
|
|
|
sg_prot = scsi_prot_sglist(cmd);
|
|
|
|
while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) {
|
|
|
|
sle_dma = sgx.dma_addr;
|
|
sle_dma_len = sgx.dma_len;
|
|
alloc_and_fill:
|
|
/* 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->u.scmd.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;
|
|
}
|
|
*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
|
|
*cur_dsd++ = cpu_to_le32(sle_dma_len);
|
|
avail_dsds--;
|
|
|
|
if (partial == 0) {
|
|
/* Got a full protection interval */
|
|
sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len;
|
|
sle_dma_len = 8;
|
|
|
|
tot_prot_dma_len += sle_dma_len;
|
|
if (tot_prot_dma_len == sg_dma_len(sg_prot)) {
|
|
tot_prot_dma_len = 0;
|
|
sg_prot = sg_next(sg_prot);
|
|
}
|
|
|
|
partial = 1; /* So as to not re-enter this block */
|
|
goto alloc_and_fill;
|
|
}
|
|
}
|
|
/* Null termination */
|
|
*cur_dsd++ = 0;
|
|
*cur_dsd++ = 0;
|
|
*cur_dsd++ = 0;
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
|
|
|
|
scsi_for_each_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->u.scmd.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);
|
|
|
|
*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--;
|
|
|
|
}
|
|
/* 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;
|
|
|
|
cmd = GET_CMD_SP(sp);
|
|
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->u.scmd.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);
|
|
|
|
*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--;
|
|
}
|
|
/* 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;
|
|
int sgc;
|
|
uint32_t total_bytes = 0;
|
|
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 = GET_CMD_SP(sp);
|
|
|
|
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);
|
|
|
|
vha = sp->fcport->vha;
|
|
ha = vha->hw;
|
|
|
|
/* No data transfer */
|
|
data_bytes = scsi_bufflen(cmd);
|
|
if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
|
|
cmd_pkt->byte_count = __constant_cpu_to_le32(0);
|
|
return QLA_SUCCESS;
|
|
}
|
|
|
|
cmd_pkt->vp_index = sp->fcport->vha->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);
|
|
}
|
|
|
|
if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
|
|
(scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) ||
|
|
(scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) ||
|
|
(scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT))
|
|
bundling = 0;
|
|
|
|
/* Allocate CRC context from global pool */
|
|
crc_ctx_pkt = sp->u.scmd.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(sp, (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) {
|
|
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(cmd->device->lun, &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 = TSK_SIMPLE;
|
|
break;
|
|
}
|
|
} else {
|
|
fcp_cmnd->task_attribute = TSK_SIMPLE;
|
|
}
|
|
|
|
cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */
|
|
|
|
/* Compute dif len and adjust data len to incude protection */
|
|
dif_bytes = 0;
|
|
blk_size = cmd->device->sector_size;
|
|
dif_bytes = (data_bytes / blk_size) * 8;
|
|
|
|
switch (scsi_get_prot_op(GET_CMD_SP(sp))) {
|
|
case SCSI_PROT_READ_INSERT:
|
|
case SCSI_PROT_WRITE_STRIP:
|
|
total_bytes = data_bytes;
|
|
data_bytes += dif_bytes;
|
|
break;
|
|
|
|
case SCSI_PROT_READ_STRIP:
|
|
case SCSI_PROT_WRITE_INSERT:
|
|
case SCSI_PROT_READ_PASS:
|
|
case SCSI_PROT_WRITE_PASS:
|
|
total_bytes = data_bytes + dif_bytes;
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
|
|
if (!qla2x00_hba_err_chk_enabled(sp))
|
|
fw_prot_opts |= 0x10; /* Disable Guard tag checking */
|
|
/* HBA error checking enabled */
|
|
else if (IS_PI_UNINIT_CAPABLE(ha)) {
|
|
if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1)
|
|
|| (scsi_get_prot_type(GET_CMD_SP(sp)) ==
|
|
SCSI_PROT_DIF_TYPE2))
|
|
fw_prot_opts |= BIT_10;
|
|
else if (scsi_get_prot_type(GET_CMD_SP(sp)) ==
|
|
SCSI_PROT_DIF_TYPE3)
|
|
fw_prot_opts |= BIT_11;
|
|
}
|
|
|
|
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);
|
|
|
|
if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
|
|
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 (!bundling && tot_prot_dsds) {
|
|
if (qla24xx_walk_and_build_sglist_no_difb(ha, sp,
|
|
cur_dsd, tot_dsds))
|
|
goto crc_queuing_error;
|
|
} else 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 */
|
|
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:
|
|
/* 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 = GET_CMD_SP(sp);
|
|
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 < req->num_outstanding_cmds; index++) {
|
|
handle++;
|
|
if (handle == req->num_outstanding_cmds)
|
|
handle = 1;
|
|
if (!req->outstanding_cmds[handle])
|
|
break;
|
|
}
|
|
if (index == req->num_outstanding_cmds)
|
|
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(vha, 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;
|
|
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->vha->vp_idx;
|
|
|
|
int_to_scsilun(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;
|
|
default:
|
|
cmd_pkt->task = TSK_SIMPLE;
|
|
break;
|
|
}
|
|
} else {
|
|
cmd_pkt->task = TSK_SIMPLE;
|
|
}
|
|
|
|
/* 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 = GET_CMD_SP(sp);
|
|
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 < req->num_outstanding_cmds; index++) {
|
|
handle++;
|
|
if (handle == req->num_outstanding_cmds)
|
|
handle = 1;
|
|
if (!req->outstanding_cmds[handle])
|
|
break;
|
|
}
|
|
|
|
if (index == req->num_outstanding_cmds)
|
|
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;
|
|
|
|
if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
|
|
(scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
|
|
struct qla2_sgx sgx;
|
|
uint32_t partial;
|
|
|
|
memset(&sgx, 0, sizeof(struct qla2_sgx));
|
|
sgx.tot_bytes = scsi_bufflen(cmd);
|
|
sgx.cur_sg = scsi_sglist(cmd);
|
|
sgx.sp = sp;
|
|
|
|
nseg = 0;
|
|
while (qla24xx_get_one_block_sg(
|
|
cmd->device->sector_size, &sgx, &partial))
|
|
nseg++;
|
|
}
|
|
} 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;
|
|
|
|
if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
|
|
(scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
|
|
nseg = scsi_bufflen(cmd) / cmd->device->sector_size;
|
|
}
|
|
} 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->handle = handle;
|
|
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(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);
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
|
|
|
|
static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp)
|
|
{
|
|
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
|
|
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 < req->num_outstanding_cmds; index++) {
|
|
handle++;
|
|
if (handle == req->num_outstanding_cmds)
|
|
handle = 1;
|
|
if (!req->outstanding_cmds[handle])
|
|
break;
|
|
}
|
|
if (index == req->num_outstanding_cmds) {
|
|
ql_log(ql_log_warn, vha, 0x700b,
|
|
"No room on outstanding cmd array.\n");
|
|
goto queuing_error;
|
|
}
|
|
|
|
/* Prep command array. */
|
|
req->current_outstanding_cmd = handle;
|
|
req->outstanding_cmds[handle] = sp;
|
|
sp->handle = handle;
|
|
|
|
/* Adjust entry-counts as needed. */
|
|
if (sp->type != SRB_SCSI_CMD)
|
|
req_cnt = sp->iocbs;
|
|
|
|
skip_cmd_array:
|
|
/* Check for room on request queue. */
|
|
if (req->cnt < req_cnt) {
|
|
if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha))
|
|
cnt = RD_REG_DWORD(®->isp25mq.req_q_out);
|
|
else if (IS_P3P_TYPE(ha))
|
|
cnt = RD_REG_DWORD(®->isp82.req_q_out);
|
|
else if (IS_FWI2_CAPABLE(ha))
|
|
cnt = RD_REG_DWORD(®->isp24.req_q_out);
|
|
else if (IS_QLAFX00(ha))
|
|
cnt = RD_REG_DWORD(®->ispfx00.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);
|
|
if (IS_QLAFX00(ha)) {
|
|
WRT_REG_BYTE((void __iomem *)&pkt->entry_count, req_cnt);
|
|
WRT_REG_WORD((void __iomem *)&pkt->handle, handle);
|
|
} else {
|
|
pkt->entry_count = req_cnt;
|
|
pkt->handle = handle;
|
|
}
|
|
|
|
queuing_error:
|
|
return pkt;
|
|
}
|
|
|
|
static void
|
|
qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio)
|
|
{
|
|
struct srb_iocb *lio = &sp->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->vha->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_iocb *lio = &sp->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->vha->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->vha->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->vha->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->vha->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->vha->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_iocb *iocb = &sp->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->vha->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 = sp->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->vha->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 =
|
|
sp->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));
|
|
|
|
sp->fcport->vha->qla_stats.control_requests++;
|
|
}
|
|
|
|
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 = sp->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,
|
|
vha->hw->req_q_map[0]);
|
|
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;
|
|
|
|
sp->fcport->vha->qla_stats.control_requests++;
|
|
}
|
|
|
|
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 qla_hw_data *ha = vha->hw;
|
|
struct fc_bsg_job *bsg_job = sp->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->vha->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,
|
|
ha->req_q_map[0]);
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* qla82xx_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
|
|
qla82xx_start_scsi(srb_t *sp)
|
|
{
|
|
int ret, nseg;
|
|
unsigned long flags;
|
|
struct scsi_cmnd *cmd;
|
|
uint32_t *clr_ptr;
|
|
uint32_t index;
|
|
uint32_t handle;
|
|
uint16_t cnt;
|
|
uint16_t req_cnt;
|
|
uint16_t tot_dsds;
|
|
struct device_reg_82xx __iomem *reg;
|
|
uint32_t dbval;
|
|
uint32_t *fcp_dl;
|
|
uint8_t additional_cdb_len;
|
|
struct ct6_dsd *ctx;
|
|
struct scsi_qla_host *vha = sp->fcport->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct req_que *req = NULL;
|
|
struct rsp_que *rsp = NULL;
|
|
char tag[2];
|
|
|
|
/* Setup device pointers. */
|
|
ret = 0;
|
|
reg = &ha->iobase->isp82;
|
|
cmd = GET_CMD_SP(sp);
|
|
req = vha->req;
|
|
rsp = ha->rsp_q_map[0];
|
|
|
|
/* So we know we haven't pci_map'ed anything yet */
|
|
tot_dsds = 0;
|
|
|
|
dbval = 0x04 | (ha->portnum << 5);
|
|
|
|
/* Send marker if required */
|
|
if (vha->marker_needed != 0) {
|
|
if (qla2x00_marker(vha, req,
|
|
rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
|
|
ql_log(ql_log_warn, vha, 0x300c,
|
|
"qla2x00_marker failed for cmd=%p.\n", cmd);
|
|
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 < req->num_outstanding_cmds; index++) {
|
|
handle++;
|
|
if (handle == req->num_outstanding_cmds)
|
|
handle = 1;
|
|
if (!req->outstanding_cmds[handle])
|
|
break;
|
|
}
|
|
if (index == req->num_outstanding_cmds)
|
|
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;
|
|
|
|
if (tot_dsds > ql2xshiftctondsd) {
|
|
struct cmd_type_6 *cmd_pkt;
|
|
uint16_t more_dsd_lists = 0;
|
|
struct dsd_dma *dsd_ptr;
|
|
uint16_t i;
|
|
|
|
more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds);
|
|
if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) {
|
|
ql_dbg(ql_dbg_io, vha, 0x300d,
|
|
"Num of DSD list %d is than %d for cmd=%p.\n",
|
|
more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN,
|
|
cmd);
|
|
goto queuing_error;
|
|
}
|
|
|
|
if (more_dsd_lists <= ha->gbl_dsd_avail)
|
|
goto sufficient_dsds;
|
|
else
|
|
more_dsd_lists -= ha->gbl_dsd_avail;
|
|
|
|
for (i = 0; i < more_dsd_lists; i++) {
|
|
dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
|
|
if (!dsd_ptr) {
|
|
ql_log(ql_log_fatal, vha, 0x300e,
|
|
"Failed to allocate memory for dsd_dma "
|
|
"for cmd=%p.\n", cmd);
|
|
goto queuing_error;
|
|
}
|
|
|
|
dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
|
|
GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
|
|
if (!dsd_ptr->dsd_addr) {
|
|
kfree(dsd_ptr);
|
|
ql_log(ql_log_fatal, vha, 0x300f,
|
|
"Failed to allocate memory for dsd_addr "
|
|
"for cmd=%p.\n", cmd);
|
|
goto queuing_error;
|
|
}
|
|
list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list);
|
|
ha->gbl_dsd_avail++;
|
|
}
|
|
|
|
sufficient_dsds:
|
|
req_cnt = 1;
|
|
|
|
if (req->cnt < (req_cnt + 2)) {
|
|
cnt = (uint16_t)RD_REG_DWORD_RELAXED(
|
|
®->req_q_out[0]);
|
|
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;
|
|
}
|
|
|
|
ctx = sp->u.scmd.ctx =
|
|
mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
|
|
if (!ctx) {
|
|
ql_log(ql_log_fatal, vha, 0x3010,
|
|
"Failed to allocate ctx for cmd=%p.\n", cmd);
|
|
goto queuing_error;
|
|
}
|
|
|
|
memset(ctx, 0, sizeof(struct ct6_dsd));
|
|
ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool,
|
|
GFP_ATOMIC, &ctx->fcp_cmnd_dma);
|
|
if (!ctx->fcp_cmnd) {
|
|
ql_log(ql_log_fatal, vha, 0x3011,
|
|
"Failed to allocate fcp_cmnd for cmd=%p.\n", cmd);
|
|
goto queuing_error;
|
|
}
|
|
|
|
/* Initialize the DSD list and dma handle */
|
|
INIT_LIST_HEAD(&ctx->dsd_list);
|
|
ctx->dsd_use_cnt = 0;
|
|
|
|
if (cmd->cmd_len > 16) {
|
|
additional_cdb_len = cmd->cmd_len - 16;
|
|
if ((cmd->cmd_len % 4) != 0) {
|
|
/* SCSI command bigger than 16 bytes must be
|
|
* multiple of 4
|
|
*/
|
|
ql_log(ql_log_warn, vha, 0x3012,
|
|
"scsi cmd len %d not multiple of 4 "
|
|
"for cmd=%p.\n", cmd->cmd_len, cmd);
|
|
goto queuing_error_fcp_cmnd;
|
|
}
|
|
ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
|
|
} else {
|
|
additional_cdb_len = 0;
|
|
ctx->fcp_cmnd_len = 12 + 16 + 4;
|
|
}
|
|
|
|
cmd_pkt = (struct cmd_type_6 *)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->vha->vp_idx;
|
|
|
|
/* Build IOCB segments */
|
|
if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
|
|
goto queuing_error_fcp_cmnd;
|
|
|
|
int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
|
|
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
|
|
|
|
/* build FCP_CMND IU */
|
|
memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd));
|
|
int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun);
|
|
ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
|
|
|
|
if (cmd->sc_data_direction == DMA_TO_DEVICE)
|
|
ctx->fcp_cmnd->additional_cdb_len |= 1;
|
|
else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
|
|
ctx->fcp_cmnd->additional_cdb_len |= 2;
|
|
|
|
/*
|
|
* Update tagged queuing modifier -- default is TSK_SIMPLE (0).
|
|
*/
|
|
if (scsi_populate_tag_msg(cmd, tag)) {
|
|
switch (tag[0]) {
|
|
case HEAD_OF_QUEUE_TAG:
|
|
ctx->fcp_cmnd->task_attribute =
|
|
TSK_HEAD_OF_QUEUE;
|
|
break;
|
|
case ORDERED_QUEUE_TAG:
|
|
ctx->fcp_cmnd->task_attribute =
|
|
TSK_ORDERED;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Populate the FCP_PRIO. */
|
|
if (ha->flags.fcp_prio_enabled)
|
|
ctx->fcp_cmnd->task_attribute |=
|
|
sp->fcport->fcp_prio << 3;
|
|
|
|
memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
|
|
|
|
fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 +
|
|
additional_cdb_len);
|
|
*fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
|
|
|
|
cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
|
|
cmd_pkt->fcp_cmnd_dseg_address[0] =
|
|
cpu_to_le32(LSD(ctx->fcp_cmnd_dma));
|
|
cmd_pkt->fcp_cmnd_dseg_address[1] =
|
|
cpu_to_le32(MSD(ctx->fcp_cmnd_dma));
|
|
|
|
sp->flags |= SRB_FCP_CMND_DMA_VALID;
|
|
cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
|
|
/* 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;
|
|
} else {
|
|
struct cmd_type_7 *cmd_pkt;
|
|
req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
|
|
if (req->cnt < (req_cnt + 2)) {
|
|
cnt = (uint16_t)RD_REG_DWORD_RELAXED(
|
|
®->req_q_out[0]);
|
|
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;
|
|
|
|
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->vha->vp_idx;
|
|
|
|
int_to_scsilun(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;
|
|
}
|
|
}
|
|
|
|
/* Populate the FCP_PRIO. */
|
|
if (ha->flags.fcp_prio_enabled)
|
|
cmd_pkt->task |= sp->fcport->fcp_prio << 3;
|
|
|
|
/* 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;
|
|
|
|
}
|
|
/* Build command packet. */
|
|
req->current_outstanding_cmd = handle;
|
|
req->outstanding_cmds[handle] = sp;
|
|
sp->handle = handle;
|
|
cmd->host_scribble = (unsigned char *)(unsigned long)handle;
|
|
req->cnt -= req_cnt;
|
|
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. */
|
|
/* 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((void __iomem *)ha->nxdb_rd_ptr) != dbval) {
|
|
WRT_REG_DWORD(
|
|
(unsigned long __iomem *)ha->nxdb_wr_ptr,
|
|
dbval);
|
|
wmb();
|
|
}
|
|
}
|
|
|
|
/* 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_fcp_cmnd:
|
|
dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
|
|
queuing_error:
|
|
if (tot_dsds)
|
|
scsi_dma_unmap(cmd);
|
|
|
|
if (sp->u.scmd.ctx) {
|
|
mempool_free(sp->u.scmd.ctx, ha->ctx_mempool);
|
|
sp->u.scmd.ctx = NULL;
|
|
}
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
|
|
void
|
|
qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb)
|
|
{
|
|
struct srb_iocb *aio = &sp->u.iocb_cmd;
|
|
scsi_qla_host_t *vha = sp->fcport->vha;
|
|
struct req_que *req = vha->req;
|
|
|
|
memset(abt_iocb, 0, sizeof(struct abort_entry_24xx));
|
|
abt_iocb->entry_type = ABORT_IOCB_TYPE;
|
|
abt_iocb->entry_count = 1;
|
|
abt_iocb->handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
|
|
abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
|
|
abt_iocb->handle_to_abort =
|
|
cpu_to_le32(MAKE_HANDLE(req->id, aio->u.abt.cmd_hndl));
|
|
abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
|
|
abt_iocb->port_id[1] = sp->fcport->d_id.b.area;
|
|
abt_iocb->port_id[2] = sp->fcport->d_id.b.domain;
|
|
abt_iocb->vp_index = vha->vp_idx;
|
|
abt_iocb->req_que_no = cpu_to_le16(req->id);
|
|
/* Send the command to the firmware */
|
|
wmb();
|
|
}
|
|
|
|
int
|
|
qla2x00_start_sp(srb_t *sp)
|
|
{
|
|
int rval;
|
|
struct qla_hw_data *ha = sp->fcport->vha->hw;
|
|
void *pkt;
|
|
unsigned long flags;
|
|
|
|
rval = QLA_FUNCTION_FAILED;
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
pkt = qla2x00_alloc_iocbs(sp->fcport->vha, sp);
|
|
if (!pkt) {
|
|
ql_log(ql_log_warn, sp->fcport->vha, 0x700c,
|
|
"qla2x00_alloc_iocbs failed.\n");
|
|
goto done;
|
|
}
|
|
|
|
rval = QLA_SUCCESS;
|
|
switch (sp->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:
|
|
IS_QLAFX00(ha) ?
|
|
qlafx00_tm_iocb(sp, pkt) :
|
|
qla24xx_tm_iocb(sp, pkt);
|
|
break;
|
|
case SRB_FXIOCB_DCMD:
|
|
case SRB_FXIOCB_BCMD:
|
|
qlafx00_fxdisc_iocb(sp, pkt);
|
|
break;
|
|
case SRB_ABT_CMD:
|
|
IS_QLAFX00(ha) ?
|
|
qlafx00_abort_iocb(sp, pkt) :
|
|
qla24xx_abort_iocb(sp, pkt);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
wmb();
|
|
qla2x00_start_iocbs(sp->fcport->vha, ha->req_q_map[0]);
|
|
done:
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
return rval;
|
|
}
|
|
|
|
static void
|
|
qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha,
|
|
struct cmd_bidir *cmd_pkt, uint32_t tot_dsds)
|
|
{
|
|
uint16_t avail_dsds;
|
|
uint32_t *cur_dsd;
|
|
uint32_t req_data_len = 0;
|
|
uint32_t rsp_data_len = 0;
|
|
struct scatterlist *sg;
|
|
int index;
|
|
int entry_count = 1;
|
|
struct fc_bsg_job *bsg_job = sp->u.bsg_job;
|
|
|
|
/*Update entry type to indicate bidir command */
|
|
*((uint32_t *)(&cmd_pkt->entry_type)) =
|
|
__constant_cpu_to_le32(COMMAND_BIDIRECTIONAL);
|
|
|
|
/* Set the transfer direction, in this set both flags
|
|
* Also set the BD_WRAP_BACK flag, firmware will take care
|
|
* assigning DID=SID for outgoing pkts.
|
|
*/
|
|
cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
|
|
cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
|
|
cmd_pkt->control_flags =
|
|
__constant_cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA |
|
|
BD_WRAP_BACK);
|
|
|
|
req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
|
|
cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len);
|
|
cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len);
|
|
cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2);
|
|
|
|
vha->bidi_stats.transfer_bytes += req_data_len;
|
|
vha->bidi_stats.io_count++;
|
|
|
|
vha->qla_stats.output_bytes += req_data_len;
|
|
vha->qla_stats.output_requests++;
|
|
|
|
/* Only one dsd is available for bidirectional IOCB, remaining dsds
|
|
* are bundled in continuation iocb
|
|
*/
|
|
avail_dsds = 1;
|
|
cur_dsd = (uint32_t *)&cmd_pkt->fcp_data_dseg_address;
|
|
|
|
index = 0;
|
|
|
|
for_each_sg(bsg_job->request_payload.sg_list, sg,
|
|
bsg_job->request_payload.sg_cnt, index) {
|
|
dma_addr_t sle_dma;
|
|
cont_a64_entry_t *cont_pkt;
|
|
|
|
/* Allocate additional continuation packets */
|
|
if (avail_dsds == 0) {
|
|
/* Continuation type 1 IOCB can accomodate
|
|
* 5 DSDS
|
|
*/
|
|
cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
|
|
cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
|
|
avail_dsds = 5;
|
|
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));
|
|
avail_dsds--;
|
|
}
|
|
/* For read request DSD will always goes to continuation IOCB
|
|
* and follow the write DSD. If there is room on the current IOCB
|
|
* then it is added to that IOCB else new continuation IOCB is
|
|
* allocated.
|
|
*/
|
|
for_each_sg(bsg_job->reply_payload.sg_list, sg,
|
|
bsg_job->reply_payload.sg_cnt, index) {
|
|
dma_addr_t sle_dma;
|
|
cont_a64_entry_t *cont_pkt;
|
|
|
|
/* Allocate additional continuation packets */
|
|
if (avail_dsds == 0) {
|
|
/* Continuation type 1 IOCB can accomodate
|
|
* 5 DSDS
|
|
*/
|
|
cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
|
|
cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
|
|
avail_dsds = 5;
|
|
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));
|
|
avail_dsds--;
|
|
}
|
|
/* This value should be same as number of IOCB required for this cmd */
|
|
cmd_pkt->entry_count = entry_count;
|
|
}
|
|
|
|
int
|
|
qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds)
|
|
{
|
|
|
|
struct qla_hw_data *ha = vha->hw;
|
|
unsigned long flags;
|
|
uint32_t handle;
|
|
uint32_t index;
|
|
uint16_t req_cnt;
|
|
uint16_t cnt;
|
|
uint32_t *clr_ptr;
|
|
struct cmd_bidir *cmd_pkt = NULL;
|
|
struct rsp_que *rsp;
|
|
struct req_que *req;
|
|
int rval = EXT_STATUS_OK;
|
|
|
|
rval = QLA_SUCCESS;
|
|
|
|
rsp = ha->rsp_q_map[0];
|
|
req = vha->req;
|
|
|
|
/* Send marker if required */
|
|
if (vha->marker_needed != 0) {
|
|
if (qla2x00_marker(vha, req,
|
|
rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS)
|
|
return EXT_STATUS_MAILBOX;
|
|
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 < req->num_outstanding_cmds; index++) {
|
|
handle++;
|
|
if (handle == req->num_outstanding_cmds)
|
|
handle = 1;
|
|
if (!req->outstanding_cmds[handle])
|
|
break;
|
|
}
|
|
|
|
if (index == req->num_outstanding_cmds) {
|
|
rval = EXT_STATUS_BUSY;
|
|
goto queuing_error;
|
|
}
|
|
|
|
/* Calculate number of IOCB required */
|
|
req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
|
|
|
|
/* Check for room on request queue. */
|
|
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) {
|
|
rval = EXT_STATUS_BUSY;
|
|
goto queuing_error;
|
|
}
|
|
|
|
cmd_pkt = (struct cmd_bidir *)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);
|
|
|
|
/* Set NPORT-ID (of vha)*/
|
|
cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id);
|
|
cmd_pkt->port_id[0] = vha->d_id.b.al_pa;
|
|
cmd_pkt->port_id[1] = vha->d_id.b.area;
|
|
cmd_pkt->port_id[2] = vha->d_id.b.domain;
|
|
|
|
qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds);
|
|
cmd_pkt->entry_status = (uint8_t) rsp->id;
|
|
/* Build command packet. */
|
|
req->current_outstanding_cmd = handle;
|
|
req->outstanding_cmds[handle] = sp;
|
|
sp->handle = handle;
|
|
req->cnt -= req_cnt;
|
|
|
|
/* Send the command to the firmware */
|
|
wmb();
|
|
qla2x00_start_iocbs(vha, req);
|
|
queuing_error:
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
return rval;
|
|
}
|