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ac988c4936
The function always returns QLA_SUCCESS and the caller qla2x00_start_sp() doesn't even evalute the return value. So there is no point in returning a status. Link: https://lore.kernel.org/r/20200520130819.90625-1-dwagner@suse.de Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
3938 lines
104 KiB
C
3938 lines
104 KiB
C
/*
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* QLogic Fibre Channel HBA Driver
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* Copyright (c) 2003-2014 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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/**
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* qla2x00_get_cmd_direction() - Determine control_flag data direction.
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* @sp: 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->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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* @vha: 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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put_unaligned_le32(CONTINUE_TYPE, &cont_pkt->entry_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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* @vha: HA context
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* @req: request queue
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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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put_unaligned_le32(IS_QLAFX00(vha->hw) ? CONTINUE_A64_TYPE_FX00 :
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CONTINUE_A64_TYPE, &cont_pkt->entry_type);
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return (cont_pkt);
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}
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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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struct dsd32 *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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put_unaligned_le32(COMMAND_TYPE, &cmd_pkt->entry_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 = cpu_to_le32(0);
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return;
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}
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vha = sp->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 = ARRAY_SIZE(cmd_pkt->dsd32);
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cur_dsd = cmd_pkt->dsd32;
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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 = cont_pkt->dsd;
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avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
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}
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append_dsd32(&cur_dsd, 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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struct dsd64 *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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put_unaligned_le32(COMMAND_A64_TYPE, &cmd_pkt->entry_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 = cpu_to_le32(0);
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return;
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}
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vha = sp->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 = ARRAY_SIZE(cmd_pkt->dsd64);
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cur_dsd = cmd_pkt->dsd64;
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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_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 = cont_pkt->dsd;
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avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
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}
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append_dsd64(&cur_dsd, sg);
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avail_dsds--;
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}
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}
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/*
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* Find the first handle that is not in use, starting from
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* req->current_outstanding_cmd + 1. The caller must hold the lock that is
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* associated with @req.
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*/
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uint32_t qla2xxx_get_next_handle(struct req_que *req)
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{
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uint32_t index, 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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return handle;
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}
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return 0;
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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 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 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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/* Setup device pointers. */
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vha = sp->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, ha->base_qpair, 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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handle = qla2xxx_get_next_handle(req);
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if (handle == 0)
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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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cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG);
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/* Load SCSI command packet. */
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memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len);
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cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
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/* Build IOCB segments */
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ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds);
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/* Set total data segment count. */
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cmd_pkt->entry_count = (uint8_t)req_cnt;
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wmb();
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/* Adjust ring index. */
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req->ring_index++;
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if (req->ring_index == req->length) {
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req->ring_index = 0;
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req->ring_ptr = req->ring;
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} else
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req->ring_ptr++;
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sp->flags |= SRB_DMA_VALID;
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/* Set chip new ring index. */
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wrt_reg_word(ISP_REQ_Q_IN(ha, reg), req->ring_index);
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rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */
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/* Manage unprocessed RIO/ZIO commands in response queue. */
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if (vha->flags.process_response_queue &&
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rsp->ring_ptr->signature != RESPONSE_PROCESSED)
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qla2x00_process_response_queue(rsp);
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spin_unlock_irqrestore(&ha->hardware_lock, flags);
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return (QLA_SUCCESS);
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queuing_error:
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if (tot_dsds)
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scsi_dma_unmap(cmd);
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spin_unlock_irqrestore(&ha->hardware_lock, flags);
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return (QLA_FUNCTION_FAILED);
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}
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|
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/**
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* qla2x00_start_iocbs() - Execute the IOCB command
|
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* @vha: HA context
|
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* @req: request queue
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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 *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;
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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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/* Set chip new ring index. */
|
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if (ha->mqenable || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
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wrt_reg_dword(req->req_q_in, req->ring_index);
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} else if (IS_QLA83XX(ha)) {
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wrt_reg_dword(req->req_q_in, req->ring_index);
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rd_reg_dword_relaxed(&ha->iobase->isp24.hccr);
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} 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.
|
|
* @vha: HA context
|
|
* @qpair: queue pair pointer
|
|
* @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 qla_qpair *qpair,
|
|
uint16_t loop_id, uint64_t lun, uint8_t type)
|
|
{
|
|
mrk_entry_t *mrk;
|
|
struct mrk_entry_24xx *mrk24 = NULL;
|
|
struct req_que *req = qpair->req;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
|
|
|
|
mrk = (mrk_entry_t *)__qla2x00_alloc_iocbs(qpair, 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);
|
|
int_to_scsilun(lun, (struct scsi_lun *)&mrk24->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((uint16_t)lun);
|
|
}
|
|
}
|
|
wmb();
|
|
|
|
qla2x00_start_iocbs(vha, req);
|
|
|
|
return (QLA_SUCCESS);
|
|
}
|
|
|
|
int
|
|
qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair,
|
|
uint16_t loop_id, uint64_t lun, uint8_t type)
|
|
{
|
|
int ret;
|
|
unsigned long flags = 0;
|
|
|
|
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
|
|
ret = __qla2x00_marker(vha, qpair, loop_id, lun, type);
|
|
spin_unlock_irqrestore(qpair->qp_lock_ptr, 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->hw->base_qpair, 0, 0,
|
|
MK_SYNC_ALL) != QLA_SUCCESS)
|
|
return QLA_FUNCTION_FAILED;
|
|
} else {
|
|
if (qla2x00_marker(vha, vha->hw->base_qpair, 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)
|
|
{
|
|
struct dsd64 *cur_dsd = NULL, *next_dsd;
|
|
scsi_qla_host_t *vha;
|
|
struct qla_hw_data *ha;
|
|
struct scsi_cmnd *cmd;
|
|
struct scatterlist *cur_seg;
|
|
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 */
|
|
put_unaligned_le32(COMMAND_TYPE_6, &cmd_pkt->entry_type);
|
|
|
|
/* No data transfer */
|
|
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
|
|
cmd_pkt->byte_count = cpu_to_le32(0);
|
|
return 0;
|
|
}
|
|
|
|
vha = sp->vha;
|
|
ha = vha->hw;
|
|
|
|
/* Set transfer direction */
|
|
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
|
|
cmd_pkt->control_flags = 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 = 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 = sp->u.scmd.ct6_ctx;
|
|
|
|
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;
|
|
put_unaligned_le64(dsd_ptr->dsd_list_dma,
|
|
&cmd_pkt->fcp_dsd.address);
|
|
cmd_pkt->fcp_dsd.length = cpu_to_le32(dsd_list_len);
|
|
} else {
|
|
put_unaligned_le64(dsd_ptr->dsd_list_dma,
|
|
&cur_dsd->address);
|
|
cur_dsd->length = cpu_to_le32(dsd_list_len);
|
|
cur_dsd++;
|
|
}
|
|
cur_dsd = next_dsd;
|
|
while (avail_dsds) {
|
|
append_dsd64(&cur_dsd, cur_seg);
|
|
cur_seg = sg_next(cur_seg);
|
|
avail_dsds--;
|
|
}
|
|
}
|
|
|
|
/* Null termination */
|
|
cur_dsd->address = 0;
|
|
cur_dsd->length = 0;
|
|
cur_dsd++;
|
|
cmd_pkt->control_flags |= cpu_to_le16(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.
|
|
*/
|
|
static 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
|
|
* @req: pointer to request queue
|
|
*/
|
|
inline void
|
|
qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
|
|
uint16_t tot_dsds, struct req_que *req)
|
|
{
|
|
uint16_t avail_dsds;
|
|
struct dsd64 *cur_dsd;
|
|
scsi_qla_host_t *vha;
|
|
struct scsi_cmnd *cmd;
|
|
struct scatterlist *sg;
|
|
int i;
|
|
|
|
cmd = GET_CMD_SP(sp);
|
|
|
|
/* Update entry type to indicate Command Type 3 IOCB */
|
|
put_unaligned_le32(COMMAND_TYPE_7, &cmd_pkt->entry_type);
|
|
|
|
/* No data transfer */
|
|
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
|
|
cmd_pkt->byte_count = cpu_to_le32(0);
|
|
return;
|
|
}
|
|
|
|
vha = sp->vha;
|
|
|
|
/* Set transfer direction */
|
|
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
|
|
cmd_pkt->task_mgmt_flags = 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 = 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 = &cmd_pkt->dsd;
|
|
|
|
/* Load data segments */
|
|
|
|
scsi_for_each_sg(cmd, sg, tot_dsds, i) {
|
|
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, req);
|
|
cur_dsd = cont_pkt->dsd;
|
|
avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
|
|
}
|
|
|
|
append_dsd64(&cur_dsd, sg);
|
|
avail_dsds--;
|
|
}
|
|
}
|
|
|
|
struct fw_dif_context {
|
|
__le32 ref_tag;
|
|
__le16 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 = 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 = 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;
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
int
|
|
qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp,
|
|
struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc)
|
|
{
|
|
void *next_dsd;
|
|
uint8_t avail_dsds = 0;
|
|
uint32_t dsd_list_len;
|
|
struct dsd_dma *dsd_ptr;
|
|
struct scatterlist *sg_prot;
|
|
struct dsd64 *cur_dsd = dsd;
|
|
uint16_t used_dsds = tot_dsds;
|
|
uint32_t prot_int; /* protection interval */
|
|
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;
|
|
|
|
memset(&sgx, 0, sizeof(struct qla2_sgx));
|
|
if (sp) {
|
|
cmd = GET_CMD_SP(sp);
|
|
prot_int = cmd->device->sector_size;
|
|
|
|
sgx.tot_bytes = scsi_bufflen(cmd);
|
|
sgx.cur_sg = scsi_sglist(cmd);
|
|
sgx.sp = sp;
|
|
|
|
sg_prot = scsi_prot_sglist(cmd);
|
|
} else if (tc) {
|
|
prot_int = tc->blk_sz;
|
|
sgx.tot_bytes = tc->bufflen;
|
|
sgx.cur_sg = tc->sg;
|
|
sg_prot = tc->prot_sg;
|
|
} else {
|
|
BUG();
|
|
return 1;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
if (sp) {
|
|
list_add_tail(&dsd_ptr->list,
|
|
&sp->u.scmd.crc_ctx->dsd_list);
|
|
|
|
sp->flags |= SRB_CRC_CTX_DSD_VALID;
|
|
} else {
|
|
list_add_tail(&dsd_ptr->list,
|
|
&(tc->ctx->dsd_list));
|
|
*tc->ctx_dsd_alloced = 1;
|
|
}
|
|
|
|
|
|
/* add new list to cmd iocb or last list */
|
|
put_unaligned_le64(dsd_ptr->dsd_list_dma,
|
|
&cur_dsd->address);
|
|
cur_dsd->length = cpu_to_le32(dsd_list_len);
|
|
cur_dsd = next_dsd;
|
|
}
|
|
put_unaligned_le64(sle_dma, &cur_dsd->address);
|
|
cur_dsd->length = cpu_to_le32(sle_dma_len);
|
|
cur_dsd++;
|
|
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->address = 0;
|
|
cur_dsd->length = 0;
|
|
cur_dsd++;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp,
|
|
struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc)
|
|
{
|
|
void *next_dsd;
|
|
uint8_t avail_dsds = 0;
|
|
uint32_t dsd_list_len;
|
|
struct dsd_dma *dsd_ptr;
|
|
struct scatterlist *sg, *sgl;
|
|
struct dsd64 *cur_dsd = dsd;
|
|
int i;
|
|
uint16_t used_dsds = tot_dsds;
|
|
struct scsi_cmnd *cmd;
|
|
|
|
if (sp) {
|
|
cmd = GET_CMD_SP(sp);
|
|
sgl = scsi_sglist(cmd);
|
|
} else if (tc) {
|
|
sgl = tc->sg;
|
|
} else {
|
|
BUG();
|
|
return 1;
|
|
}
|
|
|
|
|
|
for_each_sg(sgl, sg, tot_dsds, i) {
|
|
/* 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;
|
|
}
|
|
|
|
if (sp) {
|
|
list_add_tail(&dsd_ptr->list,
|
|
&sp->u.scmd.crc_ctx->dsd_list);
|
|
|
|
sp->flags |= SRB_CRC_CTX_DSD_VALID;
|
|
} else {
|
|
list_add_tail(&dsd_ptr->list,
|
|
&(tc->ctx->dsd_list));
|
|
*tc->ctx_dsd_alloced = 1;
|
|
}
|
|
|
|
/* add new list to cmd iocb or last list */
|
|
put_unaligned_le64(dsd_ptr->dsd_list_dma,
|
|
&cur_dsd->address);
|
|
cur_dsd->length = cpu_to_le32(dsd_list_len);
|
|
cur_dsd = next_dsd;
|
|
}
|
|
append_dsd64(&cur_dsd, sg);
|
|
avail_dsds--;
|
|
|
|
}
|
|
/* Null termination */
|
|
cur_dsd->address = 0;
|
|
cur_dsd->length = 0;
|
|
cur_dsd++;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp,
|
|
struct dsd64 *cur_dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc)
|
|
{
|
|
struct dsd_dma *dsd_ptr = NULL, *dif_dsd, *nxt_dsd;
|
|
struct scatterlist *sg, *sgl;
|
|
struct crc_context *difctx = NULL;
|
|
struct scsi_qla_host *vha;
|
|
uint dsd_list_len;
|
|
uint avail_dsds = 0;
|
|
uint used_dsds = tot_dsds;
|
|
bool dif_local_dma_alloc = false;
|
|
bool direction_to_device = false;
|
|
int i;
|
|
|
|
if (sp) {
|
|
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
|
|
|
|
sgl = scsi_prot_sglist(cmd);
|
|
vha = sp->vha;
|
|
difctx = sp->u.scmd.crc_ctx;
|
|
direction_to_device = cmd->sc_data_direction == DMA_TO_DEVICE;
|
|
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021,
|
|
"%s: scsi_cmnd: %p, crc_ctx: %p, sp: %p\n",
|
|
__func__, cmd, difctx, sp);
|
|
} else if (tc) {
|
|
vha = tc->vha;
|
|
sgl = tc->prot_sg;
|
|
difctx = tc->ctx;
|
|
direction_to_device = tc->dma_data_direction == DMA_TO_DEVICE;
|
|
} else {
|
|
BUG();
|
|
return 1;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021,
|
|
"%s: enter (write=%u)\n", __func__, direction_to_device);
|
|
|
|
/* if initiator doing write or target doing read */
|
|
if (direction_to_device) {
|
|
for_each_sg(sgl, sg, tot_dsds, i) {
|
|
u64 sle_phys = sg_phys(sg);
|
|
|
|
/* If SGE addr + len flips bits in upper 32-bits */
|
|
if (MSD(sle_phys + sg->length) ^ MSD(sle_phys)) {
|
|
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe022,
|
|
"%s: page boundary crossing (phys=%llx len=%x)\n",
|
|
__func__, sle_phys, sg->length);
|
|
|
|
if (difctx) {
|
|
ha->dif_bundle_crossed_pages++;
|
|
dif_local_dma_alloc = true;
|
|
} else {
|
|
ql_dbg(ql_dbg_tgt + ql_dbg_verbose,
|
|
vha, 0xe022,
|
|
"%s: difctx pointer is NULL\n",
|
|
__func__);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
ha->dif_bundle_writes++;
|
|
} else {
|
|
ha->dif_bundle_reads++;
|
|
}
|
|
|
|
if (ql2xdifbundlinginternalbuffers)
|
|
dif_local_dma_alloc = direction_to_device;
|
|
|
|
if (dif_local_dma_alloc) {
|
|
u32 track_difbundl_buf = 0;
|
|
u32 ldma_sg_len = 0;
|
|
u8 ldma_needed = 1;
|
|
|
|
difctx->no_dif_bundl = 0;
|
|
difctx->dif_bundl_len = 0;
|
|
|
|
/* Track DSD buffers */
|
|
INIT_LIST_HEAD(&difctx->ldif_dsd_list);
|
|
/* Track local DMA buffers */
|
|
INIT_LIST_HEAD(&difctx->ldif_dma_hndl_list);
|
|
|
|
for_each_sg(sgl, sg, tot_dsds, i) {
|
|
u32 sglen = sg_dma_len(sg);
|
|
|
|
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe023,
|
|
"%s: sg[%x] (phys=%llx sglen=%x) ldma_sg_len: %x dif_bundl_len: %x ldma_needed: %x\n",
|
|
__func__, i, (u64)sg_phys(sg), sglen, ldma_sg_len,
|
|
difctx->dif_bundl_len, ldma_needed);
|
|
|
|
while (sglen) {
|
|
u32 xfrlen = 0;
|
|
|
|
if (ldma_needed) {
|
|
/*
|
|
* Allocate list item to store
|
|
* the DMA buffers
|
|
*/
|
|
dsd_ptr = kzalloc(sizeof(*dsd_ptr),
|
|
GFP_ATOMIC);
|
|
if (!dsd_ptr) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe024,
|
|
"%s: failed alloc dsd_ptr\n",
|
|
__func__);
|
|
return 1;
|
|
}
|
|
ha->dif_bundle_kallocs++;
|
|
|
|
/* allocate dma buffer */
|
|
dsd_ptr->dsd_addr = dma_pool_alloc
|
|
(ha->dif_bundl_pool, GFP_ATOMIC,
|
|
&dsd_ptr->dsd_list_dma);
|
|
if (!dsd_ptr->dsd_addr) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe024,
|
|
"%s: failed alloc ->dsd_ptr\n",
|
|
__func__);
|
|
/*
|
|
* need to cleanup only this
|
|
* dsd_ptr rest will be done
|
|
* by sp_free_dma()
|
|
*/
|
|
kfree(dsd_ptr);
|
|
ha->dif_bundle_kallocs--;
|
|
return 1;
|
|
}
|
|
ha->dif_bundle_dma_allocs++;
|
|
ldma_needed = 0;
|
|
difctx->no_dif_bundl++;
|
|
list_add_tail(&dsd_ptr->list,
|
|
&difctx->ldif_dma_hndl_list);
|
|
}
|
|
|
|
/* xfrlen is min of dma pool size and sglen */
|
|
xfrlen = (sglen >
|
|
(DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len)) ?
|
|
DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len :
|
|
sglen;
|
|
|
|
/* replace with local allocated dma buffer */
|
|
sg_pcopy_to_buffer(sgl, sg_nents(sgl),
|
|
dsd_ptr->dsd_addr + ldma_sg_len, xfrlen,
|
|
difctx->dif_bundl_len);
|
|
difctx->dif_bundl_len += xfrlen;
|
|
sglen -= xfrlen;
|
|
ldma_sg_len += xfrlen;
|
|
if (ldma_sg_len == DIF_BUNDLING_DMA_POOL_SIZE ||
|
|
sg_is_last(sg)) {
|
|
ldma_needed = 1;
|
|
ldma_sg_len = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
track_difbundl_buf = used_dsds = difctx->no_dif_bundl;
|
|
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe025,
|
|
"dif_bundl_len=%x, no_dif_bundl=%x track_difbundl_buf: %x\n",
|
|
difctx->dif_bundl_len, difctx->no_dif_bundl,
|
|
track_difbundl_buf);
|
|
|
|
if (sp)
|
|
sp->flags |= SRB_DIF_BUNDL_DMA_VALID;
|
|
else
|
|
tc->prot_flags = DIF_BUNDL_DMA_VALID;
|
|
|
|
list_for_each_entry_safe(dif_dsd, nxt_dsd,
|
|
&difctx->ldif_dma_hndl_list, list) {
|
|
u32 sglen = (difctx->dif_bundl_len >
|
|
DIF_BUNDLING_DMA_POOL_SIZE) ?
|
|
DIF_BUNDLING_DMA_POOL_SIZE : difctx->dif_bundl_len;
|
|
|
|
BUG_ON(track_difbundl_buf == 0);
|
|
|
|
/* Allocate additional continuation packets? */
|
|
if (avail_dsds == 0) {
|
|
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha,
|
|
0xe024,
|
|
"%s: adding continuation iocb's\n",
|
|
__func__);
|
|
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(*dsd_ptr), GFP_ATOMIC);
|
|
if (!dsd_ptr) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe026,
|
|
"%s: failed alloc dsd_ptr\n",
|
|
__func__);
|
|
return 1;
|
|
}
|
|
ha->dif_bundle_kallocs++;
|
|
|
|
difctx->no_ldif_dsd++;
|
|
/* allocate new list */
|
|
dsd_ptr->dsd_addr =
|
|
dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
|
|
&dsd_ptr->dsd_list_dma);
|
|
if (!dsd_ptr->dsd_addr) {
|
|
ql_dbg(ql_dbg_tgt, vha, 0xe026,
|
|
"%s: failed alloc ->dsd_addr\n",
|
|
__func__);
|
|
/*
|
|
* need to cleanup only this dsd_ptr
|
|
* rest will be done by sp_free_dma()
|
|
*/
|
|
kfree(dsd_ptr);
|
|
ha->dif_bundle_kallocs--;
|
|
return 1;
|
|
}
|
|
ha->dif_bundle_dma_allocs++;
|
|
|
|
if (sp) {
|
|
list_add_tail(&dsd_ptr->list,
|
|
&difctx->ldif_dsd_list);
|
|
sp->flags |= SRB_CRC_CTX_DSD_VALID;
|
|
} else {
|
|
list_add_tail(&dsd_ptr->list,
|
|
&difctx->ldif_dsd_list);
|
|
tc->ctx_dsd_alloced = 1;
|
|
}
|
|
|
|
/* add new list to cmd iocb or last list */
|
|
put_unaligned_le64(dsd_ptr->dsd_list_dma,
|
|
&cur_dsd->address);
|
|
cur_dsd->length = cpu_to_le32(dsd_list_len);
|
|
cur_dsd = dsd_ptr->dsd_addr;
|
|
}
|
|
put_unaligned_le64(dif_dsd->dsd_list_dma,
|
|
&cur_dsd->address);
|
|
cur_dsd->length = cpu_to_le32(sglen);
|
|
cur_dsd++;
|
|
avail_dsds--;
|
|
difctx->dif_bundl_len -= sglen;
|
|
track_difbundl_buf--;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe026,
|
|
"%s: no_ldif_dsd:%x, no_dif_bundl:%x\n", __func__,
|
|
difctx->no_ldif_dsd, difctx->no_dif_bundl);
|
|
} else {
|
|
for_each_sg(sgl, sg, tot_dsds, i) {
|
|
/* 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(*dsd_ptr), GFP_ATOMIC);
|
|
if (!dsd_ptr) {
|
|
ql_dbg(ql_dbg_tgt + ql_dbg_verbose,
|
|
vha, 0xe027,
|
|
"%s: failed alloc dsd_dma...\n",
|
|
__func__);
|
|
return 1;
|
|
}
|
|
|
|
/* allocate new list */
|
|
dsd_ptr->dsd_addr =
|
|
dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
|
|
&dsd_ptr->dsd_list_dma);
|
|
if (!dsd_ptr->dsd_addr) {
|
|
/* need to cleanup only this dsd_ptr */
|
|
/* rest will be done by sp_free_dma() */
|
|
kfree(dsd_ptr);
|
|
return 1;
|
|
}
|
|
|
|
if (sp) {
|
|
list_add_tail(&dsd_ptr->list,
|
|
&difctx->dsd_list);
|
|
sp->flags |= SRB_CRC_CTX_DSD_VALID;
|
|
} else {
|
|
list_add_tail(&dsd_ptr->list,
|
|
&difctx->dsd_list);
|
|
tc->ctx_dsd_alloced = 1;
|
|
}
|
|
|
|
/* add new list to cmd iocb or last list */
|
|
put_unaligned_le64(dsd_ptr->dsd_list_dma,
|
|
&cur_dsd->address);
|
|
cur_dsd->length = cpu_to_le32(dsd_list_len);
|
|
cur_dsd = dsd_ptr->dsd_addr;
|
|
}
|
|
append_dsd64(&cur_dsd, sg);
|
|
avail_dsds--;
|
|
}
|
|
}
|
|
/* Null termination */
|
|
cur_dsd->address = 0;
|
|
cur_dsd->length = 0;
|
|
cur_dsd++;
|
|
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
|
|
* @tot_prot_dsds: Total number of segments with protection information
|
|
* @fw_prot_opts: Protection options to be passed to firmware
|
|
*/
|
|
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)
|
|
{
|
|
struct dsd64 *cur_dsd;
|
|
__be32 *fcp_dl;
|
|
scsi_qla_host_t *vha;
|
|
struct scsi_cmnd *cmd;
|
|
uint32_t total_bytes = 0;
|
|
uint32_t data_bytes;
|
|
uint32_t dif_bytes;
|
|
uint8_t bundling = 1;
|
|
uint16_t blk_size;
|
|
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;
|
|
|
|
cmd = GET_CMD_SP(sp);
|
|
|
|
/* Update entry type to indicate Command Type CRC_2 IOCB */
|
|
put_unaligned_le32(COMMAND_TYPE_CRC_2, &cmd_pkt->entry_type);
|
|
|
|
vha = sp->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 = cpu_to_le32(0);
|
|
return QLA_SUCCESS;
|
|
}
|
|
|
|
cmd_pkt->vp_index = sp->vha->vp_idx;
|
|
|
|
/* Set transfer direction */
|
|
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
|
|
cmd_pkt->control_flags =
|
|
cpu_to_le16(CF_WRITE_DATA);
|
|
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
|
|
cmd_pkt->control_flags =
|
|
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.crc_ctx =
|
|
dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma);
|
|
|
|
if (!crc_ctx_pkt)
|
|
goto crc_queuing_error;
|
|
|
|
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);
|
|
|
|
put_unaligned_le64(crc_ctx_dma, &cmd_pkt->crc_context_address);
|
|
cmd_pkt->crc_context_len = cpu_to_le16(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);
|
|
put_unaligned_le64(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF,
|
|
&cmd_pkt->fcp_cmnd_dseg_address);
|
|
fcp_cmnd->task_management = 0;
|
|
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 = &crc_ctx_pkt->u.nobundling.data_dsd[0];
|
|
} 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 = &crc_ctx_pkt->u.bundling.data_dsd[0];
|
|
}
|
|
|
|
/* 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 = cpu_to_le16(0);
|
|
/* Fibre channel byte count */
|
|
cmd_pkt->byte_count = cpu_to_le32(total_bytes);
|
|
fcp_dl = (__be32 *)(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 = cpu_to_le32(0);
|
|
return QLA_SUCCESS;
|
|
}
|
|
/* Walks data segments */
|
|
|
|
cmd_pkt->control_flags |= 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, NULL))
|
|
goto crc_queuing_error;
|
|
} else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd,
|
|
(tot_dsds - tot_prot_dsds), NULL))
|
|
goto crc_queuing_error;
|
|
|
|
if (bundling && tot_prot_dsds) {
|
|
/* Walks dif segments */
|
|
cmd_pkt->control_flags |= cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE);
|
|
cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd;
|
|
if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd,
|
|
tot_prot_dsds, NULL))
|
|
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 nseg;
|
|
unsigned long flags;
|
|
uint32_t *clr_ptr;
|
|
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 scsi_cmnd *cmd = GET_CMD_SP(sp);
|
|
struct scsi_qla_host *vha = sp->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
|
|
/* Setup device pointers. */
|
|
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, ha->base_qpair, 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);
|
|
|
|
handle = qla2xxx_get_next_handle(req);
|
|
if (handle == 0)
|
|
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 = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
|
|
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->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));
|
|
|
|
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, req);
|
|
|
|
/* Set total data segment count. */
|
|
cmd_pkt->entry_count = (uint8_t)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. */
|
|
wrt_reg_dword(req->req_q_in, req->ring_index);
|
|
|
|
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 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->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. */
|
|
req = vha->req;
|
|
rsp = req->rsp;
|
|
|
|
/* 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, ha->base_qpair, 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);
|
|
|
|
handle = qla2xxx_get_next_handle(req);
|
|
if (handle == 0)
|
|
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 = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
|
|
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 = 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);
|
|
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP
|
|
* @sp: command to send to the ISP
|
|
*
|
|
* Returns non-zero if a failure occurred, else zero.
|
|
*/
|
|
static int
|
|
qla2xxx_start_scsi_mq(srb_t *sp)
|
|
{
|
|
int nseg;
|
|
unsigned long flags;
|
|
uint32_t *clr_ptr;
|
|
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 scsi_cmnd *cmd = GET_CMD_SP(sp);
|
|
struct scsi_qla_host *vha = sp->fcport->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct qla_qpair *qpair = sp->qpair;
|
|
|
|
/* Acquire qpair specific lock */
|
|
spin_lock_irqsave(&qpair->qp_lock, flags);
|
|
|
|
/* Setup qpair pointers */
|
|
req = qpair->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, qpair, 0, 0, MK_SYNC_ALL) !=
|
|
QLA_SUCCESS) {
|
|
spin_unlock_irqrestore(&qpair->qp_lock, flags);
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
vha->marker_needed = 0;
|
|
}
|
|
|
|
handle = qla2xxx_get_next_handle(req);
|
|
if (handle == 0)
|
|
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 = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
|
|
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));
|
|
|
|
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, req);
|
|
|
|
/* Set total data segment count. */
|
|
cmd_pkt->entry_count = (uint8_t)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. */
|
|
wrt_reg_dword(req->req_q_in, req->ring_index);
|
|
|
|
spin_unlock_irqrestore(&qpair->qp_lock, flags);
|
|
return QLA_SUCCESS;
|
|
|
|
queuing_error:
|
|
if (tot_dsds)
|
|
scsi_dma_unmap(cmd);
|
|
|
|
spin_unlock_irqrestore(&qpair->qp_lock, flags);
|
|
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
|
|
|
|
/**
|
|
* qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP
|
|
* @sp: command to send to the ISP
|
|
*
|
|
* Returns non-zero if a failure occurred, else zero.
|
|
*/
|
|
int
|
|
qla2xxx_dif_start_scsi_mq(srb_t *sp)
|
|
{
|
|
int nseg;
|
|
unsigned long flags;
|
|
uint32_t *clr_ptr;
|
|
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;
|
|
struct qla_qpair *qpair = sp->qpair;
|
|
|
|
#define QDSS_GOT_Q_SPACE BIT_0
|
|
|
|
/* Check for host side state */
|
|
if (!qpair->online) {
|
|
cmd->result = DID_NO_CONNECT << 16;
|
|
return QLA_INTERFACE_ERROR;
|
|
}
|
|
|
|
if (!qpair->difdix_supported &&
|
|
scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
|
|
cmd->result = DID_NO_CONNECT << 16;
|
|
return QLA_INTERFACE_ERROR;
|
|
}
|
|
|
|
/* Only process protection or >16 cdb in this routine */
|
|
if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) {
|
|
if (cmd->cmd_len <= 16)
|
|
return qla2xxx_start_scsi_mq(sp);
|
|
}
|
|
|
|
spin_lock_irqsave(&qpair->qp_lock, flags);
|
|
|
|
/* Setup qpair pointers */
|
|
rsp = qpair->rsp;
|
|
req = qpair->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, qpair, 0, 0, MK_SYNC_ALL) !=
|
|
QLA_SUCCESS) {
|
|
spin_unlock_irqrestore(&qpair->qp_lock, flags);
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
vha->marker_needed = 0;
|
|
}
|
|
|
|
handle = qla2xxx_get_next_handle(req);
|
|
if (handle == 0)
|
|
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 = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
|
|
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;
|
|
cmd_pkt->timeout = 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);
|
|
|
|
/* 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(&qpair->qp_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(&qpair->qp_lock, flags);
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
|
|
/* Generic Control-SRB manipulation functions. */
|
|
|
|
/* hardware_lock assumed to be held. */
|
|
|
|
void *
|
|
__qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp)
|
|
{
|
|
scsi_qla_host_t *vha = qpair->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct req_que *req = qpair->req;
|
|
device_reg_t *reg = ISP_QUE_REG(ha, req->id);
|
|
uint32_t handle;
|
|
request_t *pkt;
|
|
uint16_t cnt, req_cnt;
|
|
|
|
pkt = NULL;
|
|
req_cnt = 1;
|
|
handle = 0;
|
|
|
|
if (sp && (sp->type != SRB_SCSI_CMD)) {
|
|
/* Adjust entry-counts as needed. */
|
|
req_cnt = sp->iocbs;
|
|
}
|
|
|
|
/* Check for room on request queue. */
|
|
if (req->cnt < req_cnt + 2) {
|
|
if (qpair->use_shadow_reg)
|
|
cnt = *req->out_ptr;
|
|
else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
|
|
IS_QLA28XX(ha))
|
|
cnt = rd_reg_dword(®->isp25mq.req_q_out);
|
|
else if (IS_P3P_TYPE(ha))
|
|
cnt = rd_reg_dword(reg->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 + 2)
|
|
goto queuing_error;
|
|
|
|
if (sp) {
|
|
handle = qla2xxx_get_next_handle(req);
|
|
if (handle == 0) {
|
|
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;
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
|
|
return pkt;
|
|
|
|
queuing_error:
|
|
qpair->tgt_counters.num_alloc_iocb_failed++;
|
|
return pkt;
|
|
}
|
|
|
|
void *
|
|
qla2x00_alloc_iocbs_ready(struct qla_qpair *qpair, srb_t *sp)
|
|
{
|
|
scsi_qla_host_t *vha = qpair->vha;
|
|
|
|
if (qla2x00_reset_active(vha))
|
|
return NULL;
|
|
|
|
return __qla2x00_alloc_iocbs(qpair, sp);
|
|
}
|
|
|
|
void *
|
|
qla2x00_alloc_iocbs(struct scsi_qla_host *vha, srb_t *sp)
|
|
{
|
|
return __qla2x00_alloc_iocbs(vha->hw->base_qpair, sp);
|
|
}
|
|
|
|
static void
|
|
qla24xx_prli_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_PRLI);
|
|
if (lio->u.logio.flags & SRB_LOGIN_NVME_PRLI) {
|
|
logio->control_flags |= cpu_to_le16(LCF_NVME_PRLI);
|
|
if (sp->vha->flags.nvme_first_burst)
|
|
logio->io_parameter[0] =
|
|
cpu_to_le32(NVME_PRLI_SP_FIRST_BURST);
|
|
}
|
|
|
|
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->vha->vp_idx;
|
|
}
|
|
|
|
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_PRLI_ONLY) {
|
|
logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI);
|
|
} else {
|
|
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->vha->vp_idx;
|
|
}
|
|
|
|
static void
|
|
qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx)
|
|
{
|
|
struct qla_hw_data *ha = sp->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->vha->vp_idx);
|
|
}
|
|
|
|
static void
|
|
qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio)
|
|
{
|
|
u16 control_flags = LCF_COMMAND_LOGO;
|
|
logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
|
|
|
|
if (sp->fcport->explicit_logout) {
|
|
control_flags |= LCF_EXPL_LOGO|LCF_FREE_NPORT;
|
|
} else {
|
|
control_flags |= LCF_IMPL_LOGO;
|
|
|
|
if (!sp->fcport->keep_nport_handle)
|
|
control_flags |= LCF_FREE_NPORT;
|
|
}
|
|
|
|
logio->control_flags = cpu_to_le16(control_flags);
|
|
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->vha->vp_idx;
|
|
}
|
|
|
|
static void
|
|
qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx)
|
|
{
|
|
struct qla_hw_data *ha = sp->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->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->vha->vp_idx;
|
|
}
|
|
|
|
static void
|
|
qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx)
|
|
{
|
|
struct qla_hw_data *ha = sp->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->vha->vp_idx);
|
|
}
|
|
|
|
static void
|
|
qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk)
|
|
{
|
|
uint32_t flags;
|
|
uint64_t 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));
|
|
}
|
|
}
|
|
|
|
void qla2x00_init_timer(srb_t *sp, unsigned long tmo)
|
|
{
|
|
timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0);
|
|
sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ;
|
|
sp->free = qla2x00_sp_free;
|
|
if (IS_QLAFX00(sp->vha->hw) && sp->type == SRB_FXIOCB_DCMD)
|
|
init_completion(&sp->u.iocb_cmd.u.fxiocb.fxiocb_comp);
|
|
sp->start_timer = 1;
|
|
}
|
|
|
|
static void qla2x00_els_dcmd_sp_free(srb_t *sp)
|
|
{
|
|
struct srb_iocb *elsio = &sp->u.iocb_cmd;
|
|
|
|
kfree(sp->fcport);
|
|
|
|
if (elsio->u.els_logo.els_logo_pyld)
|
|
dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE,
|
|
elsio->u.els_logo.els_logo_pyld,
|
|
elsio->u.els_logo.els_logo_pyld_dma);
|
|
|
|
del_timer(&elsio->timer);
|
|
qla2x00_rel_sp(sp);
|
|
}
|
|
|
|
static void
|
|
qla2x00_els_dcmd_iocb_timeout(void *data)
|
|
{
|
|
srb_t *sp = data;
|
|
fc_port_t *fcport = sp->fcport;
|
|
struct scsi_qla_host *vha = sp->vha;
|
|
struct srb_iocb *lio = &sp->u.iocb_cmd;
|
|
unsigned long flags = 0;
|
|
int res, h;
|
|
|
|
ql_dbg(ql_dbg_io, vha, 0x3069,
|
|
"%s Timeout, hdl=%x, portid=%02x%02x%02x\n",
|
|
sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area,
|
|
fcport->d_id.b.al_pa);
|
|
|
|
/* Abort the exchange */
|
|
res = qla24xx_async_abort_cmd(sp, false);
|
|
if (res) {
|
|
ql_dbg(ql_dbg_io, vha, 0x3070,
|
|
"mbx abort_command failed.\n");
|
|
spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
|
|
for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) {
|
|
if (sp->qpair->req->outstanding_cmds[h] == sp) {
|
|
sp->qpair->req->outstanding_cmds[h] = NULL;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
|
|
complete(&lio->u.els_logo.comp);
|
|
} else {
|
|
ql_dbg(ql_dbg_io, vha, 0x3071,
|
|
"mbx abort_command success.\n");
|
|
}
|
|
}
|
|
|
|
static void qla2x00_els_dcmd_sp_done(srb_t *sp, int res)
|
|
{
|
|
fc_port_t *fcport = sp->fcport;
|
|
struct srb_iocb *lio = &sp->u.iocb_cmd;
|
|
struct scsi_qla_host *vha = sp->vha;
|
|
|
|
ql_dbg(ql_dbg_io, vha, 0x3072,
|
|
"%s hdl=%x, portid=%02x%02x%02x done\n",
|
|
sp->name, sp->handle, fcport->d_id.b.domain,
|
|
fcport->d_id.b.area, fcport->d_id.b.al_pa);
|
|
|
|
complete(&lio->u.els_logo.comp);
|
|
}
|
|
|
|
int
|
|
qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode,
|
|
port_id_t remote_did)
|
|
{
|
|
srb_t *sp;
|
|
fc_port_t *fcport = NULL;
|
|
struct srb_iocb *elsio = NULL;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct els_logo_payload logo_pyld;
|
|
int rval = QLA_SUCCESS;
|
|
|
|
fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
|
|
if (!fcport) {
|
|
ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* Alloc SRB structure */
|
|
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
|
|
if (!sp) {
|
|
kfree(fcport);
|
|
ql_log(ql_log_info, vha, 0x70e6,
|
|
"SRB allocation failed\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
elsio = &sp->u.iocb_cmd;
|
|
fcport->loop_id = 0xFFFF;
|
|
fcport->d_id.b.domain = remote_did.b.domain;
|
|
fcport->d_id.b.area = remote_did.b.area;
|
|
fcport->d_id.b.al_pa = remote_did.b.al_pa;
|
|
|
|
ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n",
|
|
fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa);
|
|
|
|
sp->type = SRB_ELS_DCMD;
|
|
sp->name = "ELS_DCMD";
|
|
sp->fcport = fcport;
|
|
elsio->timeout = qla2x00_els_dcmd_iocb_timeout;
|
|
qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT);
|
|
init_completion(&sp->u.iocb_cmd.u.els_logo.comp);
|
|
sp->done = qla2x00_els_dcmd_sp_done;
|
|
sp->free = qla2x00_els_dcmd_sp_free;
|
|
|
|
elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev,
|
|
DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma,
|
|
GFP_KERNEL);
|
|
|
|
if (!elsio->u.els_logo.els_logo_pyld) {
|
|
sp->free(sp);
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
|
|
memset(&logo_pyld, 0, sizeof(struct els_logo_payload));
|
|
|
|
elsio->u.els_logo.els_cmd = els_opcode;
|
|
logo_pyld.opcode = els_opcode;
|
|
logo_pyld.s_id[0] = vha->d_id.b.al_pa;
|
|
logo_pyld.s_id[1] = vha->d_id.b.area;
|
|
logo_pyld.s_id[2] = vha->d_id.b.domain;
|
|
host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t));
|
|
memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE);
|
|
|
|
memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld,
|
|
sizeof(struct els_logo_payload));
|
|
ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3075, "LOGO buffer:");
|
|
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x010a,
|
|
elsio->u.els_logo.els_logo_pyld,
|
|
sizeof(*elsio->u.els_logo.els_logo_pyld));
|
|
|
|
rval = qla2x00_start_sp(sp);
|
|
if (rval != QLA_SUCCESS) {
|
|
sp->free(sp);
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_io, vha, 0x3074,
|
|
"%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n",
|
|
sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain,
|
|
fcport->d_id.b.area, fcport->d_id.b.al_pa);
|
|
|
|
wait_for_completion(&elsio->u.els_logo.comp);
|
|
|
|
sp->free(sp);
|
|
return rval;
|
|
}
|
|
|
|
static void
|
|
qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
|
|
{
|
|
scsi_qla_host_t *vha = sp->vha;
|
|
struct srb_iocb *elsio = &sp->u.iocb_cmd;
|
|
|
|
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 = cpu_to_le16(1);
|
|
els_iocb->vp_index = vha->vp_idx;
|
|
els_iocb->sof_type = EST_SOFI3;
|
|
els_iocb->rx_dsd_count = 0;
|
|
els_iocb->opcode = elsio->u.els_logo.els_cmd;
|
|
|
|
els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa;
|
|
els_iocb->d_id[1] = sp->fcport->d_id.b.area;
|
|
els_iocb->d_id[2] = sp->fcport->d_id.b.domain;
|
|
/* For SID the byte order is different than DID */
|
|
els_iocb->s_id[1] = vha->d_id.b.al_pa;
|
|
els_iocb->s_id[2] = vha->d_id.b.area;
|
|
els_iocb->s_id[0] = vha->d_id.b.domain;
|
|
|
|
if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) {
|
|
els_iocb->control_flags = 0;
|
|
els_iocb->tx_byte_count = els_iocb->tx_len =
|
|
cpu_to_le32(sizeof(struct els_plogi_payload));
|
|
put_unaligned_le64(elsio->u.els_plogi.els_plogi_pyld_dma,
|
|
&els_iocb->tx_address);
|
|
els_iocb->rx_dsd_count = cpu_to_le16(1);
|
|
els_iocb->rx_byte_count = els_iocb->rx_len =
|
|
cpu_to_le32(sizeof(struct els_plogi_payload));
|
|
put_unaligned_le64(elsio->u.els_plogi.els_resp_pyld_dma,
|
|
&els_iocb->rx_address);
|
|
|
|
ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073,
|
|
"PLOGI ELS IOCB:\n");
|
|
ql_dump_buffer(ql_log_info, vha, 0x0109,
|
|
(uint8_t *)els_iocb,
|
|
sizeof(*els_iocb));
|
|
} else {
|
|
els_iocb->control_flags = cpu_to_le16(1 << 13);
|
|
els_iocb->tx_byte_count =
|
|
cpu_to_le32(sizeof(struct els_logo_payload));
|
|
put_unaligned_le64(elsio->u.els_logo.els_logo_pyld_dma,
|
|
&els_iocb->tx_address);
|
|
els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload));
|
|
|
|
els_iocb->rx_byte_count = 0;
|
|
els_iocb->rx_address = 0;
|
|
els_iocb->rx_len = 0;
|
|
ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3076,
|
|
"LOGO ELS IOCB:");
|
|
ql_dump_buffer(ql_log_info, vha, 0x010b,
|
|
els_iocb,
|
|
sizeof(*els_iocb));
|
|
}
|
|
|
|
sp->vha->qla_stats.control_requests++;
|
|
}
|
|
|
|
static void
|
|
qla2x00_els_dcmd2_iocb_timeout(void *data)
|
|
{
|
|
srb_t *sp = data;
|
|
fc_port_t *fcport = sp->fcport;
|
|
struct scsi_qla_host *vha = sp->vha;
|
|
unsigned long flags = 0;
|
|
int res, h;
|
|
|
|
ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069,
|
|
"%s hdl=%x ELS Timeout, %8phC portid=%06x\n",
|
|
sp->name, sp->handle, fcport->port_name, fcport->d_id.b24);
|
|
|
|
/* Abort the exchange */
|
|
res = qla24xx_async_abort_cmd(sp, false);
|
|
ql_dbg(ql_dbg_io, vha, 0x3070,
|
|
"mbx abort_command %s\n",
|
|
(res == QLA_SUCCESS) ? "successful" : "failed");
|
|
if (res) {
|
|
spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
|
|
for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) {
|
|
if (sp->qpair->req->outstanding_cmds[h] == sp) {
|
|
sp->qpair->req->outstanding_cmds[h] = NULL;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
|
|
sp->done(sp, QLA_FUNCTION_TIMEOUT);
|
|
}
|
|
}
|
|
|
|
void qla2x00_els_dcmd2_free(scsi_qla_host_t *vha, struct els_plogi *els_plogi)
|
|
{
|
|
if (els_plogi->els_plogi_pyld)
|
|
dma_free_coherent(&vha->hw->pdev->dev,
|
|
els_plogi->tx_size,
|
|
els_plogi->els_plogi_pyld,
|
|
els_plogi->els_plogi_pyld_dma);
|
|
|
|
if (els_plogi->els_resp_pyld)
|
|
dma_free_coherent(&vha->hw->pdev->dev,
|
|
els_plogi->rx_size,
|
|
els_plogi->els_resp_pyld,
|
|
els_plogi->els_resp_pyld_dma);
|
|
}
|
|
|
|
static void qla2x00_els_dcmd2_sp_done(srb_t *sp, int res)
|
|
{
|
|
fc_port_t *fcport = sp->fcport;
|
|
struct srb_iocb *lio = &sp->u.iocb_cmd;
|
|
struct scsi_qla_host *vha = sp->vha;
|
|
struct event_arg ea;
|
|
struct qla_work_evt *e;
|
|
struct fc_port *conflict_fcport;
|
|
port_id_t cid; /* conflict Nport id */
|
|
const __le32 *fw_status = sp->u.iocb_cmd.u.els_plogi.fw_status;
|
|
u16 lid;
|
|
|
|
ql_dbg(ql_dbg_disc, vha, 0x3072,
|
|
"%s ELS done rc %d hdl=%x, portid=%06x %8phC\n",
|
|
sp->name, res, sp->handle, fcport->d_id.b24, fcport->port_name);
|
|
|
|
fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
|
|
del_timer(&sp->u.iocb_cmd.timer);
|
|
|
|
if (sp->flags & SRB_WAKEUP_ON_COMP)
|
|
complete(&lio->u.els_plogi.comp);
|
|
else {
|
|
switch (le32_to_cpu(fw_status[0])) {
|
|
case CS_DATA_UNDERRUN:
|
|
case CS_COMPLETE:
|
|
memset(&ea, 0, sizeof(ea));
|
|
ea.fcport = fcport;
|
|
ea.rc = res;
|
|
qla_handle_els_plogi_done(vha, &ea);
|
|
break;
|
|
|
|
case CS_IOCB_ERROR:
|
|
switch (le32_to_cpu(fw_status[1])) {
|
|
case LSC_SCODE_PORTID_USED:
|
|
lid = le32_to_cpu(fw_status[2]) & 0xffff;
|
|
qlt_find_sess_invalidate_other(vha,
|
|
wwn_to_u64(fcport->port_name),
|
|
fcport->d_id, lid, &conflict_fcport);
|
|
if (conflict_fcport) {
|
|
/*
|
|
* Another fcport shares the same
|
|
* loop_id & nport id; conflict
|
|
* fcport needs to finish cleanup
|
|
* before this fcport can proceed
|
|
* to login.
|
|
*/
|
|
conflict_fcport->conflict = fcport;
|
|
fcport->login_pause = 1;
|
|
ql_dbg(ql_dbg_disc, vha, 0x20ed,
|
|
"%s %d %8phC pid %06x inuse with lid %#x post gidpn\n",
|
|
__func__, __LINE__,
|
|
fcport->port_name,
|
|
fcport->d_id.b24, lid);
|
|
} else {
|
|
ql_dbg(ql_dbg_disc, vha, 0x20ed,
|
|
"%s %d %8phC pid %06x inuse with lid %#x sched del\n",
|
|
__func__, __LINE__,
|
|
fcport->port_name,
|
|
fcport->d_id.b24, lid);
|
|
qla2x00_clear_loop_id(fcport);
|
|
set_bit(lid, vha->hw->loop_id_map);
|
|
fcport->loop_id = lid;
|
|
fcport->keep_nport_handle = 0;
|
|
qlt_schedule_sess_for_deletion(fcport);
|
|
}
|
|
break;
|
|
|
|
case LSC_SCODE_NPORT_USED:
|
|
cid.b.domain = (le32_to_cpu(fw_status[2]) >> 16)
|
|
& 0xff;
|
|
cid.b.area = (le32_to_cpu(fw_status[2]) >> 8)
|
|
& 0xff;
|
|
cid.b.al_pa = le32_to_cpu(fw_status[2]) & 0xff;
|
|
cid.b.rsvd_1 = 0;
|
|
|
|
ql_dbg(ql_dbg_disc, vha, 0x20ec,
|
|
"%s %d %8phC lid %#x in use with pid %06x post gnl\n",
|
|
__func__, __LINE__, fcport->port_name,
|
|
fcport->loop_id, cid.b24);
|
|
set_bit(fcport->loop_id,
|
|
vha->hw->loop_id_map);
|
|
fcport->loop_id = FC_NO_LOOP_ID;
|
|
qla24xx_post_gnl_work(vha, fcport);
|
|
break;
|
|
|
|
case LSC_SCODE_NOXCB:
|
|
vha->hw->exch_starvation++;
|
|
if (vha->hw->exch_starvation > 5) {
|
|
ql_log(ql_log_warn, vha, 0xd046,
|
|
"Exchange starvation. Resetting RISC\n");
|
|
vha->hw->exch_starvation = 0;
|
|
set_bit(ISP_ABORT_NEEDED,
|
|
&vha->dpc_flags);
|
|
qla2xxx_wake_dpc(vha);
|
|
}
|
|
/* fall through */
|
|
default:
|
|
ql_dbg(ql_dbg_disc, vha, 0x20eb,
|
|
"%s %8phC cmd error fw_status 0x%x 0x%x 0x%x\n",
|
|
__func__, sp->fcport->port_name,
|
|
fw_status[0], fw_status[1], fw_status[2]);
|
|
|
|
fcport->flags &= ~FCF_ASYNC_SENT;
|
|
qla2x00_set_fcport_disc_state(fcport,
|
|
DSC_LOGIN_FAILED);
|
|
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
ql_dbg(ql_dbg_disc, vha, 0x20eb,
|
|
"%s %8phC cmd error 2 fw_status 0x%x 0x%x 0x%x\n",
|
|
__func__, sp->fcport->port_name,
|
|
fw_status[0], fw_status[1], fw_status[2]);
|
|
|
|
sp->fcport->flags &= ~FCF_ASYNC_SENT;
|
|
qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_FAILED);
|
|
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
|
|
break;
|
|
}
|
|
|
|
e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP);
|
|
if (!e) {
|
|
struct srb_iocb *elsio = &sp->u.iocb_cmd;
|
|
|
|
qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi);
|
|
sp->free(sp);
|
|
return;
|
|
}
|
|
e->u.iosb.sp = sp;
|
|
qla2x00_post_work(vha, e);
|
|
}
|
|
}
|
|
|
|
int
|
|
qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode,
|
|
fc_port_t *fcport, bool wait)
|
|
{
|
|
srb_t *sp;
|
|
struct srb_iocb *elsio = NULL;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
int rval = QLA_SUCCESS;
|
|
void *ptr, *resp_ptr;
|
|
|
|
/* Alloc SRB structure */
|
|
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
|
|
if (!sp) {
|
|
ql_log(ql_log_info, vha, 0x70e6,
|
|
"SRB allocation failed\n");
|
|
fcport->flags &= ~FCF_ASYNC_ACTIVE;
|
|
return -ENOMEM;
|
|
}
|
|
|
|
fcport->flags |= FCF_ASYNC_SENT;
|
|
qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
|
|
elsio = &sp->u.iocb_cmd;
|
|
ql_dbg(ql_dbg_io, vha, 0x3073,
|
|
"Enter: PLOGI portid=%06x\n", fcport->d_id.b24);
|
|
|
|
sp->type = SRB_ELS_DCMD;
|
|
sp->name = "ELS_DCMD";
|
|
sp->fcport = fcport;
|
|
|
|
elsio->timeout = qla2x00_els_dcmd2_iocb_timeout;
|
|
if (wait)
|
|
sp->flags = SRB_WAKEUP_ON_COMP;
|
|
|
|
qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT + 2);
|
|
|
|
sp->done = qla2x00_els_dcmd2_sp_done;
|
|
elsio->u.els_plogi.tx_size = elsio->u.els_plogi.rx_size = DMA_POOL_SIZE;
|
|
|
|
ptr = elsio->u.els_plogi.els_plogi_pyld =
|
|
dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.tx_size,
|
|
&elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL);
|
|
|
|
if (!elsio->u.els_plogi.els_plogi_pyld) {
|
|
rval = QLA_FUNCTION_FAILED;
|
|
goto out;
|
|
}
|
|
|
|
resp_ptr = elsio->u.els_plogi.els_resp_pyld =
|
|
dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.rx_size,
|
|
&elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL);
|
|
|
|
if (!elsio->u.els_plogi.els_resp_pyld) {
|
|
rval = QLA_FUNCTION_FAILED;
|
|
goto out;
|
|
}
|
|
|
|
ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr);
|
|
|
|
memset(ptr, 0, sizeof(struct els_plogi_payload));
|
|
memset(resp_ptr, 0, sizeof(struct els_plogi_payload));
|
|
memcpy(elsio->u.els_plogi.els_plogi_pyld->data,
|
|
&ha->plogi_els_payld.data,
|
|
sizeof(elsio->u.els_plogi.els_plogi_pyld->data));
|
|
|
|
elsio->u.els_plogi.els_cmd = els_opcode;
|
|
elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode;
|
|
|
|
ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n");
|
|
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x0109,
|
|
(uint8_t *)elsio->u.els_plogi.els_plogi_pyld,
|
|
sizeof(*elsio->u.els_plogi.els_plogi_pyld));
|
|
|
|
init_completion(&elsio->u.els_plogi.comp);
|
|
rval = qla2x00_start_sp(sp);
|
|
if (rval != QLA_SUCCESS) {
|
|
rval = QLA_FUNCTION_FAILED;
|
|
} else {
|
|
ql_dbg(ql_dbg_disc, vha, 0x3074,
|
|
"%s PLOGI sent, hdl=%x, loopid=%x, to port_id %06x from port_id %06x\n",
|
|
sp->name, sp->handle, fcport->loop_id,
|
|
fcport->d_id.b24, vha->d_id.b24);
|
|
}
|
|
|
|
if (wait) {
|
|
wait_for_completion(&elsio->u.els_plogi.comp);
|
|
|
|
if (elsio->u.els_plogi.comp_status != CS_COMPLETE)
|
|
rval = QLA_FUNCTION_FAILED;
|
|
} else {
|
|
goto done;
|
|
}
|
|
|
|
out:
|
|
fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
|
|
qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi);
|
|
sp->free(sp);
|
|
done:
|
|
return rval;
|
|
}
|
|
|
|
static void
|
|
qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
|
|
{
|
|
struct bsg_job *bsg_job = sp->u.bsg_job;
|
|
struct fc_bsg_request *bsg_request = bsg_job->request;
|
|
|
|
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 = cpu_to_le16(bsg_job->request_payload.sg_cnt);
|
|
els_iocb->vp_index = sp->vha->vp_idx;
|
|
els_iocb->sof_type = EST_SOFI3;
|
|
els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
|
|
|
|
els_iocb->opcode =
|
|
sp->type == SRB_ELS_CMD_RPT ?
|
|
bsg_request->rqst_data.r_els.els_code :
|
|
bsg_request->rqst_data.h_els.command_code;
|
|
els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa;
|
|
els_iocb->d_id[1] = sp->fcport->d_id.b.area;
|
|
els_iocb->d_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);
|
|
|
|
put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list),
|
|
&els_iocb->tx_address);
|
|
els_iocb->tx_len = cpu_to_le32(sg_dma_len
|
|
(bsg_job->request_payload.sg_list));
|
|
|
|
put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list),
|
|
&els_iocb->rx_address);
|
|
els_iocb->rx_len = cpu_to_le32(sg_dma_len
|
|
(bsg_job->reply_payload.sg_list));
|
|
|
|
sp->vha->qla_stats.control_requests++;
|
|
}
|
|
|
|
static void
|
|
qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb)
|
|
{
|
|
uint16_t avail_dsds;
|
|
struct dsd64 *cur_dsd;
|
|
struct scatterlist *sg;
|
|
int index;
|
|
uint16_t tot_dsds;
|
|
scsi_qla_host_t *vha = sp->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct bsg_job *bsg_job = sp->u.bsg_job;
|
|
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 = cpu_to_le16(0);
|
|
ct_iocb->control_flags = cpu_to_le16(0);
|
|
ct_iocb->timeout = 0;
|
|
ct_iocb->cmd_dsd_count =
|
|
cpu_to_le16(bsg_job->request_payload.sg_cnt);
|
|
ct_iocb->total_dsd_count =
|
|
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);
|
|
|
|
put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list),
|
|
&ct_iocb->req_dsd.address);
|
|
ct_iocb->req_dsd.length = ct_iocb->req_bytecount;
|
|
|
|
put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list),
|
|
&ct_iocb->rsp_dsd.address);
|
|
ct_iocb->rsp_dsd.length = ct_iocb->rsp_bytecount;
|
|
|
|
avail_dsds = 1;
|
|
cur_dsd = &ct_iocb->rsp_dsd;
|
|
index = 0;
|
|
tot_dsds = bsg_job->reply_payload.sg_cnt;
|
|
|
|
for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) {
|
|
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 = cont_pkt->dsd;
|
|
avail_dsds = 5;
|
|
entry_count++;
|
|
}
|
|
|
|
append_dsd64(&cur_dsd, sg);
|
|
avail_dsds--;
|
|
}
|
|
ct_iocb->entry_count = entry_count;
|
|
|
|
sp->vha->qla_stats.control_requests++;
|
|
}
|
|
|
|
static void
|
|
qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb)
|
|
{
|
|
uint16_t avail_dsds;
|
|
struct dsd64 *cur_dsd;
|
|
struct scatterlist *sg;
|
|
int index;
|
|
uint16_t cmd_dsds, rsp_dsds;
|
|
scsi_qla_host_t *vha = sp->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct bsg_job *bsg_job = sp->u.bsg_job;
|
|
int entry_count = 1;
|
|
cont_a64_entry_t *cont_pkt = NULL;
|
|
|
|
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->vha->vp_idx;
|
|
ct_iocb->comp_status = cpu_to_le16(0);
|
|
|
|
cmd_dsds = bsg_job->request_payload.sg_cnt;
|
|
rsp_dsds = bsg_job->reply_payload.sg_cnt;
|
|
|
|
ct_iocb->cmd_dsd_count = cpu_to_le16(cmd_dsds);
|
|
ct_iocb->timeout = 0;
|
|
ct_iocb->rsp_dsd_count = cpu_to_le16(rsp_dsds);
|
|
ct_iocb->cmd_byte_count =
|
|
cpu_to_le32(bsg_job->request_payload.payload_len);
|
|
|
|
avail_dsds = 2;
|
|
cur_dsd = ct_iocb->dsd;
|
|
index = 0;
|
|
|
|
for_each_sg(bsg_job->request_payload.sg_list, sg, cmd_dsds, index) {
|
|
/* 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 = cont_pkt->dsd;
|
|
avail_dsds = 5;
|
|
entry_count++;
|
|
}
|
|
|
|
append_dsd64(&cur_dsd, sg);
|
|
avail_dsds--;
|
|
}
|
|
|
|
index = 0;
|
|
|
|
for_each_sg(bsg_job->reply_payload.sg_list, sg, rsp_dsds, index) {
|
|
/* 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 = cont_pkt->dsd;
|
|
avail_dsds = 5;
|
|
entry_count++;
|
|
}
|
|
|
|
append_dsd64(&cur_dsd, sg);
|
|
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 nseg;
|
|
unsigned long flags;
|
|
struct scsi_cmnd *cmd;
|
|
uint32_t *clr_ptr;
|
|
uint32_t handle;
|
|
uint16_t cnt;
|
|
uint16_t req_cnt;
|
|
uint16_t tot_dsds;
|
|
struct device_reg_82xx __iomem *reg;
|
|
uint32_t dbval;
|
|
__be32 *fcp_dl;
|
|
uint8_t additional_cdb_len;
|
|
struct ct6_dsd *ctx;
|
|
struct scsi_qla_host *vha = sp->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct req_que *req = NULL;
|
|
struct rsp_que *rsp = NULL;
|
|
|
|
/* Setup device pointers. */
|
|
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, ha->base_qpair,
|
|
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);
|
|
|
|
handle = qla2xxx_get_next_handle(req);
|
|
if (handle == 0)
|
|
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.ct6_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_zalloc(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->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 */
|
|
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;
|
|
|
|
/* 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 = (__be32 *)(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);
|
|
put_unaligned_le64(ctx->fcp_cmnd_dma,
|
|
&cmd_pkt->fcp_cmnd_dseg_address);
|
|
|
|
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->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));
|
|
|
|
/* 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, req);
|
|
|
|
/* 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, (uintptr_t __force)ha->nxdb_wr_ptr, dbval);
|
|
else {
|
|
wrt_reg_dword(ha->nxdb_wr_ptr, dbval);
|
|
wmb();
|
|
while (rd_reg_dword(ha->nxdb_rd_ptr) != dbval) {
|
|
wrt_reg_dword(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.crc_ctx) {
|
|
mempool_free(sp->u.scmd.crc_ctx, ha->ctx_mempool);
|
|
sp->u.scmd.crc_ctx = NULL;
|
|
}
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
return QLA_FUNCTION_FAILED;
|
|
}
|
|
|
|
static 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->vha;
|
|
struct req_que *req = sp->qpair->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 = make_handle(req->id, sp->handle);
|
|
if (sp->fcport) {
|
|
abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
|
|
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->handle_to_abort =
|
|
make_handle(le16_to_cpu(aio->u.abt.req_que_no),
|
|
aio->u.abt.cmd_hndl);
|
|
abt_iocb->vp_index = vha->vp_idx;
|
|
abt_iocb->req_que_no = aio->u.abt.req_que_no;
|
|
/* Send the command to the firmware */
|
|
wmb();
|
|
}
|
|
|
|
static void
|
|
qla2x00_mb_iocb(srb_t *sp, struct mbx_24xx_entry *mbx)
|
|
{
|
|
int i, sz;
|
|
|
|
mbx->entry_type = MBX_IOCB_TYPE;
|
|
mbx->handle = sp->handle;
|
|
sz = min(ARRAY_SIZE(mbx->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.out_mb));
|
|
|
|
for (i = 0; i < sz; i++)
|
|
mbx->mb[i] = sp->u.iocb_cmd.u.mbx.out_mb[i];
|
|
}
|
|
|
|
static void
|
|
qla2x00_ctpthru_cmd_iocb(srb_t *sp, struct ct_entry_24xx *ct_pkt)
|
|
{
|
|
sp->u.iocb_cmd.u.ctarg.iocb = ct_pkt;
|
|
qla24xx_prep_ms_iocb(sp->vha, &sp->u.iocb_cmd.u.ctarg);
|
|
ct_pkt->handle = sp->handle;
|
|
}
|
|
|
|
static void qla2x00_send_notify_ack_iocb(srb_t *sp,
|
|
struct nack_to_isp *nack)
|
|
{
|
|
struct imm_ntfy_from_isp *ntfy = sp->u.iocb_cmd.u.nack.ntfy;
|
|
|
|
nack->entry_type = NOTIFY_ACK_TYPE;
|
|
nack->entry_count = 1;
|
|
nack->ox_id = ntfy->ox_id;
|
|
|
|
nack->u.isp24.handle = sp->handle;
|
|
nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
|
|
if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
|
|
nack->u.isp24.flags = ntfy->u.isp24.flags &
|
|
cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB);
|
|
}
|
|
nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
|
|
nack->u.isp24.status = ntfy->u.isp24.status;
|
|
nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
|
|
nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
|
|
nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
|
|
nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
|
|
nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
|
|
nack->u.isp24.srr_flags = 0;
|
|
nack->u.isp24.srr_reject_code = 0;
|
|
nack->u.isp24.srr_reject_code_expl = 0;
|
|
nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
|
|
}
|
|
|
|
/*
|
|
* Build NVME LS request
|
|
*/
|
|
static void
|
|
qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt)
|
|
{
|
|
struct srb_iocb *nvme;
|
|
|
|
nvme = &sp->u.iocb_cmd;
|
|
cmd_pkt->entry_type = PT_LS4_REQUEST;
|
|
cmd_pkt->entry_count = 1;
|
|
cmd_pkt->control_flags = cpu_to_le16(CF_LS4_ORIGINATOR << CF_LS4_SHIFT);
|
|
|
|
cmd_pkt->timeout = cpu_to_le16(nvme->u.nvme.timeout_sec);
|
|
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
|
|
cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
|
|
|
|
cmd_pkt->tx_dseg_count = cpu_to_le16(1);
|
|
cmd_pkt->tx_byte_count = cpu_to_le32(nvme->u.nvme.cmd_len);
|
|
cmd_pkt->dsd[0].length = cpu_to_le32(nvme->u.nvme.cmd_len);
|
|
put_unaligned_le64(nvme->u.nvme.cmd_dma, &cmd_pkt->dsd[0].address);
|
|
|
|
cmd_pkt->rx_dseg_count = cpu_to_le16(1);
|
|
cmd_pkt->rx_byte_count = cpu_to_le32(nvme->u.nvme.rsp_len);
|
|
cmd_pkt->dsd[1].length = cpu_to_le32(nvme->u.nvme.rsp_len);
|
|
put_unaligned_le64(nvme->u.nvme.rsp_dma, &cmd_pkt->dsd[1].address);
|
|
}
|
|
|
|
static void
|
|
qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce)
|
|
{
|
|
int map, pos;
|
|
|
|
vce->entry_type = VP_CTRL_IOCB_TYPE;
|
|
vce->handle = sp->handle;
|
|
vce->entry_count = 1;
|
|
vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd);
|
|
vce->vp_count = cpu_to_le16(1);
|
|
|
|
/*
|
|
* index map in firmware starts with 1; decrement index
|
|
* this is ok as we never use index 0
|
|
*/
|
|
map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8;
|
|
pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7;
|
|
vce->vp_idx_map[map] |= 1 << pos;
|
|
}
|
|
|
|
static void
|
|
qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio)
|
|
{
|
|
logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
|
|
logio->control_flags =
|
|
cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO);
|
|
|
|
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;
|
|
}
|
|
|
|
int
|
|
qla2x00_start_sp(srb_t *sp)
|
|
{
|
|
int rval = QLA_SUCCESS;
|
|
scsi_qla_host_t *vha = sp->vha;
|
|
struct qla_hw_data *ha = vha->hw;
|
|
struct qla_qpair *qp = sp->qpair;
|
|
void *pkt;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(qp->qp_lock_ptr, flags);
|
|
pkt = __qla2x00_alloc_iocbs(sp->qpair, sp);
|
|
if (!pkt) {
|
|
rval = EAGAIN;
|
|
ql_log(ql_log_warn, vha, 0x700c,
|
|
"qla2x00_alloc_iocbs failed.\n");
|
|
goto done;
|
|
}
|
|
|
|
switch (sp->type) {
|
|
case SRB_LOGIN_CMD:
|
|
IS_FWI2_CAPABLE(ha) ?
|
|
qla24xx_login_iocb(sp, pkt) :
|
|
qla2x00_login_iocb(sp, pkt);
|
|
break;
|
|
case SRB_PRLI_CMD:
|
|
qla24xx_prli_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_NVME_LS:
|
|
qla_nvme_ls(sp, pkt);
|
|
break;
|
|
case SRB_ABT_CMD:
|
|
IS_QLAFX00(ha) ?
|
|
qlafx00_abort_iocb(sp, pkt) :
|
|
qla24xx_abort_iocb(sp, pkt);
|
|
break;
|
|
case SRB_ELS_DCMD:
|
|
qla24xx_els_logo_iocb(sp, pkt);
|
|
break;
|
|
case SRB_CT_PTHRU_CMD:
|
|
qla2x00_ctpthru_cmd_iocb(sp, pkt);
|
|
break;
|
|
case SRB_MB_IOCB:
|
|
qla2x00_mb_iocb(sp, pkt);
|
|
break;
|
|
case SRB_NACK_PLOGI:
|
|
case SRB_NACK_PRLI:
|
|
case SRB_NACK_LOGO:
|
|
qla2x00_send_notify_ack_iocb(sp, pkt);
|
|
break;
|
|
case SRB_CTRL_VP:
|
|
qla25xx_ctrlvp_iocb(sp, pkt);
|
|
break;
|
|
case SRB_PRLO_CMD:
|
|
qla24xx_prlo_iocb(sp, pkt);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (sp->start_timer)
|
|
add_timer(&sp->u.iocb_cmd.timer);
|
|
|
|
wmb();
|
|
qla2x00_start_iocbs(vha, qp->req);
|
|
done:
|
|
spin_unlock_irqrestore(qp->qp_lock_ptr, 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;
|
|
struct dsd64 *cur_dsd;
|
|
uint32_t req_data_len = 0;
|
|
uint32_t rsp_data_len = 0;
|
|
struct scatterlist *sg;
|
|
int index;
|
|
int entry_count = 1;
|
|
struct bsg_job *bsg_job = sp->u.bsg_job;
|
|
|
|
/*Update entry type to indicate bidir command */
|
|
put_unaligned_le32(COMMAND_BIDIRECTIONAL, &cmd_pkt->entry_type);
|
|
|
|
/* 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 = 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 = &cmd_pkt->fcp_dsd;
|
|
|
|
index = 0;
|
|
|
|
for_each_sg(bsg_job->request_payload.sg_list, sg,
|
|
bsg_job->request_payload.sg_cnt, index) {
|
|
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 = cont_pkt->dsd;
|
|
avail_dsds = 5;
|
|
entry_count++;
|
|
}
|
|
append_dsd64(&cur_dsd, 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) {
|
|
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 = cont_pkt->dsd;
|
|
avail_dsds = 5;
|
|
entry_count++;
|
|
}
|
|
append_dsd64(&cur_dsd, 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;
|
|
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, ha->base_qpair,
|
|
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);
|
|
|
|
handle = qla2xxx_get_next_handle(req);
|
|
if (handle == 0) {
|
|
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 = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
|
|
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;
|
|
}
|