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Diffstat (limited to 'drivers/scsi/qla2xxx/qla_iocb.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_iocb.c4205
1 files changed, 4205 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
new file mode 100644
index 000000000..9e524d52d
--- /dev/null
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -0,0 +1,4205 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * QLogic Fibre Channel HBA Driver
+ * Copyright (c) 2003-2014 QLogic Corporation
+ */
+#include "qla_def.h"
+#include "qla_target.h"
+
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+
+#include <scsi/scsi_tcq.h>
+
+/**
+ * qla2x00_get_cmd_direction() - Determine control_flag data direction.
+ * @sp: SCSI command
+ *
+ * Returns the proper CF_* direction based on CDB.
+ */
+static inline uint16_t
+qla2x00_get_cmd_direction(srb_t *sp)
+{
+ uint16_t cflags;
+ struct scsi_cmnd *cmd = GET_CMD_SP(sp);
+ struct scsi_qla_host *vha = sp->vha;
+
+ cflags = 0;
+
+ /* Set transfer direction */
+ if (cmd->sc_data_direction == DMA_TO_DEVICE) {
+ cflags = CF_WRITE;
+ vha->qla_stats.output_bytes += scsi_bufflen(cmd);
+ vha->qla_stats.output_requests++;
+ } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
+ cflags = CF_READ;
+ vha->qla_stats.input_bytes += scsi_bufflen(cmd);
+ vha->qla_stats.input_requests++;
+ }
+ return (cflags);
+}
+
+/**
+ * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and
+ * Continuation Type 0 IOCBs to allocate.
+ *
+ * @dsds: number of data segment descriptors needed
+ *
+ * Returns the number of IOCB entries needed to store @dsds.
+ */
+uint16_t
+qla2x00_calc_iocbs_32(uint16_t dsds)
+{
+ uint16_t iocbs;
+
+ iocbs = 1;
+ if (dsds > 3) {
+ iocbs += (dsds - 3) / 7;
+ if ((dsds - 3) % 7)
+ iocbs++;
+ }
+ return (iocbs);
+}
+
+/**
+ * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and
+ * Continuation Type 1 IOCBs to allocate.
+ *
+ * @dsds: number of data segment descriptors needed
+ *
+ * Returns the number of IOCB entries needed to store @dsds.
+ */
+uint16_t
+qla2x00_calc_iocbs_64(uint16_t dsds)
+{
+ uint16_t iocbs;
+
+ iocbs = 1;
+ if (dsds > 2) {
+ iocbs += (dsds - 2) / 5;
+ if ((dsds - 2) % 5)
+ iocbs++;
+ }
+ return (iocbs);
+}
+
+/**
+ * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB.
+ * @vha: HA context
+ *
+ * Returns a pointer to the Continuation Type 0 IOCB packet.
+ */
+static inline cont_entry_t *
+qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha)
+{
+ cont_entry_t *cont_pkt;
+ struct req_que *req = vha->req;
+ /* 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++;
+ }
+
+ cont_pkt = (cont_entry_t *)req->ring_ptr;
+
+ /* Load packet defaults. */
+ put_unaligned_le32(CONTINUE_TYPE, &cont_pkt->entry_type);
+
+ return (cont_pkt);
+}
+
+/**
+ * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB.
+ * @vha: HA context
+ * @req: request queue
+ *
+ * Returns a pointer to the continuation type 1 IOCB packet.
+ */
+cont_a64_entry_t *
+qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req)
+{
+ cont_a64_entry_t *cont_pkt;
+
+ /* 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++;
+ }
+
+ cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
+
+ /* Load packet defaults. */
+ put_unaligned_le32(IS_QLAFX00(vha->hw) ? CONTINUE_A64_TYPE_FX00 :
+ CONTINUE_A64_TYPE, &cont_pkt->entry_type);
+
+ return (cont_pkt);
+}
+
+inline int
+qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts)
+{
+ struct scsi_cmnd *cmd = GET_CMD_SP(sp);
+
+ /* We always use DIFF Bundling for best performance */
+ *fw_prot_opts = 0;
+
+ /* Translate SCSI opcode to a protection opcode */
+ switch (scsi_get_prot_op(cmd)) {
+ case SCSI_PROT_READ_STRIP:
+ *fw_prot_opts |= PO_MODE_DIF_REMOVE;
+ break;
+ case SCSI_PROT_WRITE_INSERT:
+ *fw_prot_opts |= PO_MODE_DIF_INSERT;
+ break;
+ case SCSI_PROT_READ_INSERT:
+ *fw_prot_opts |= PO_MODE_DIF_INSERT;
+ break;
+ case SCSI_PROT_WRITE_STRIP:
+ *fw_prot_opts |= PO_MODE_DIF_REMOVE;
+ break;
+ case SCSI_PROT_READ_PASS:
+ case SCSI_PROT_WRITE_PASS:
+ if (cmd->prot_flags & SCSI_PROT_IP_CHECKSUM)
+ *fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM;
+ else
+ *fw_prot_opts |= PO_MODE_DIF_PASS;
+ break;
+ default: /* Normal Request */
+ *fw_prot_opts |= PO_MODE_DIF_PASS;
+ break;
+ }
+
+ if (!(cmd->prot_flags & SCSI_PROT_GUARD_CHECK))
+ *fw_prot_opts |= PO_DISABLE_GUARD_CHECK;
+
+ return scsi_prot_sg_count(cmd);
+}
+
+/*
+ * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit
+ * capable IOCB types.
+ *
+ * @sp: SRB command to process
+ * @cmd_pkt: Command type 2 IOCB
+ * @tot_dsds: Total number of segments to transfer
+ */
+void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt,
+ uint16_t tot_dsds)
+{
+ uint16_t avail_dsds;
+ struct dsd32 *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 2 IOCB */
+ put_unaligned_le32(COMMAND_TYPE, &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;
+ cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
+
+ /* Three DSDs are available in the Command Type 2 IOCB */
+ avail_dsds = ARRAY_SIZE(cmd_pkt->dsd32);
+ cur_dsd = cmd_pkt->dsd32;
+
+ /* Load data segments */
+ scsi_for_each_sg(cmd, sg, tot_dsds, i) {
+ cont_entry_t *cont_pkt;
+
+ /* Allocate additional continuation packets? */
+ if (avail_dsds == 0) {
+ /*
+ * Seven DSDs are available in the Continuation
+ * Type 0 IOCB.
+ */
+ cont_pkt = qla2x00_prep_cont_type0_iocb(vha);
+ cur_dsd = cont_pkt->dsd;
+ avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
+ }
+
+ append_dsd32(&cur_dsd, sg);
+ avail_dsds--;
+ }
+}
+
+/**
+ * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit
+ * capable IOCB types.
+ *
+ * @sp: SRB command to process
+ * @cmd_pkt: Command type 3 IOCB
+ * @tot_dsds: Total number of segments to transfer
+ */
+void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt,
+ uint16_t tot_dsds)
+{
+ 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_A64_TYPE, &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;
+ cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
+
+ /* Two DSDs are available in the Command Type 3 IOCB */
+ avail_dsds = ARRAY_SIZE(cmd_pkt->dsd64);
+ cur_dsd = cmd_pkt->dsd64;
+
+ /* 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, vha->req);
+ cur_dsd = cont_pkt->dsd;
+ avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
+ }
+
+ append_dsd64(&cur_dsd, sg);
+ avail_dsds--;
+ }
+}
+
+/*
+ * Find the first handle that is not in use, starting from
+ * req->current_outstanding_cmd + 1. The caller must hold the lock that is
+ * associated with @req.
+ */
+uint32_t qla2xxx_get_next_handle(struct req_que *req)
+{
+ uint32_t index, handle = req->current_outstanding_cmd;
+
+ for (index = 1; index < req->num_outstanding_cmds; index++) {
+ handle++;
+ if (handle == req->num_outstanding_cmds)
+ handle = 1;
+ if (!req->outstanding_cmds[handle])
+ return handle;
+ }
+
+ return 0;
+}
+
+/**
+ * qla2x00_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
+qla2x00_start_scsi(srb_t *sp)
+{
+ int nseg;
+ unsigned long flags;
+ scsi_qla_host_t *vha;
+ struct scsi_cmnd *cmd;
+ uint32_t *clr_ptr;
+ uint32_t handle;
+ cmd_entry_t *cmd_pkt;
+ uint16_t cnt;
+ uint16_t req_cnt;
+ uint16_t tot_dsds;
+ struct device_reg_2xxx __iomem *reg;
+ struct qla_hw_data *ha;
+ struct req_que *req;
+ struct rsp_que *rsp;
+
+ /* Setup device pointers. */
+ vha = sp->vha;
+ ha = vha->hw;
+ reg = &ha->iobase->isp;
+ cmd = GET_CMD_SP(sp);
+ req = ha->req_q_map[0];
+ rsp = ha->rsp_q_map[0];
+ /* 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;
+
+ /* Calculate the number of request entries needed. */
+ req_cnt = ha->isp_ops->calc_req_entries(tot_dsds);
+ if (req->cnt < (req_cnt + 2)) {
+ cnt = rd_reg_word_relaxed(ISP_REQ_Q_OUT(ha, reg));
+ if (req->ring_index < cnt)
+ req->cnt = cnt - req->ring_index;
+ else
+ req->cnt = req->length -
+ (req->ring_index - cnt);
+ /* If still no head room then bail out */
+ 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 = (cmd_entry_t *)req->ring_ptr;
+ cmd_pkt->handle = handle;
+ /* Zero out remaining portion of packet. */
+ 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 target ID and LUN number*/
+ SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id);
+ cmd_pkt->lun = cpu_to_le16(cmd->device->lun);
+ cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG);
+
+ /* Load SCSI command packet. */
+ memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len);
+ cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
+
+ /* Build IOCB segments */
+ ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds);
+
+ /* 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_word(ISP_REQ_Q_IN(ha, reg), req->ring_index);
+ rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */
+
+ /* Manage unprocessed RIO/ZIO commands in response queue. */
+ if (vha->flags.process_response_queue &&
+ rsp->ring_ptr->signature != RESPONSE_PROCESSED)
+ qla2x00_process_response_queue(rsp);
+
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ return (QLA_SUCCESS);
+
+queuing_error:
+ if (tot_dsds)
+ scsi_dma_unmap(cmd);
+
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ return (QLA_FUNCTION_FAILED);
+}
+
+/**
+ * qla2x00_start_iocbs() - Execute the IOCB command
+ * @vha: HA context
+ * @req: request queue
+ */
+void
+qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req)
+{
+ struct qla_hw_data *ha = vha->hw;
+ device_reg_t *reg = ISP_QUE_REG(ha, req->id);
+
+ if (IS_P3P_TYPE(ha)) {
+ qla82xx_start_iocbs(vha);
+ } else {
+ /* Adjust ring index. */
+ req->ring_index++;
+ if (req->ring_index == req->length) {
+ req->ring_index = 0;
+ req->ring_ptr = req->ring;
+ } else
+ req->ring_ptr++;
+
+ /* Set chip new ring index. */
+ if (ha->mqenable || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
+ wrt_reg_dword(req->req_q_in, req->ring_index);
+ } else if (IS_QLA83XX(ha)) {
+ wrt_reg_dword(req->req_q_in, req->ring_index);
+ rd_reg_dword_relaxed(&ha->iobase->isp24.hccr);
+ } else if (IS_QLAFX00(ha)) {
+ wrt_reg_dword(&reg->ispfx00.req_q_in, req->ring_index);
+ rd_reg_dword_relaxed(&reg->ispfx00.req_q_in);
+ QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
+ } else if (IS_FWI2_CAPABLE(ha)) {
+ wrt_reg_dword(&reg->isp24.req_q_in, req->ring_index);
+ rd_reg_dword_relaxed(&reg->isp24.req_q_in);
+ } else {
+ wrt_reg_word(ISP_REQ_Q_IN(ha, &reg->isp),
+ req->ring_index);
+ rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, &reg->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);
+ }
+
+ mrk24 = (struct mrk_entry_24xx *)mrk;
+
+ mrk->entry_type = MARKER_TYPE;
+ mrk->modifier = type;
+ if (type != MK_SYNC_ALL) {
+ if (IS_FWI2_CAPABLE(ha)) {
+ 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;
+ } else {
+ SET_TARGET_ID(ha, mrk->target, loop_id);
+ mrk->lun = cpu_to_le16((uint16_t)lun);
+ }
+ }
+
+ if (IS_FWI2_CAPABLE(ha))
+ mrk24->handle = QLA_SKIP_HANDLE;
+
+ 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;
+ struct qla_qpair *qpair = sp->qpair;
+
+ 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 ||
+ tot_dsds == 0) {
+ 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);
+ qpair->counters.output_bytes += scsi_bufflen(cmd);
+ qpair->counters.output_requests++;
+ } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
+ cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
+ qpair->counters.input_bytes += scsi_bufflen(cmd);
+ qpair->counters.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 descriptors 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;
+ struct qla_qpair *qpair = sp->qpair;
+
+ 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);
+ qpair->counters.output_bytes += scsi_bufflen(cmd);
+ qpair->counters.output_requests++;
+ } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
+ cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA);
+ qpair->counters.input_bytes += scsi_bufflen(cmd);
+ qpair->counters.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);
+
+ pkt->ref_tag = cpu_to_le32(scsi_prot_ref_tag(cmd));
+
+ if (cmd->prot_flags & SCSI_PROT_REF_CHECK &&
+ qla2x00_hba_err_chk_enabled(sp)) {
+ pkt->ref_tag_mask[0] = 0xff;
+ pkt->ref_tag_mask[1] = 0xff;
+ pkt->ref_tag_mask[2] = 0xff;
+ pkt->ref_tag_mask[3] = 0xff;
+ }
+
+ pkt->app_tag = cpu_to_le16(0);
+ pkt->app_tag_mask[0] = 0x0;
+ pkt->app_tag_mask[1] = 0x0;
+}
+
+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 = scsi_prot_interval(cmd);
+
+ 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 rsp_que *rsp;
+ struct scsi_cmnd *cmd = GET_CMD_SP(sp);
+ struct scsi_qla_host *vha = sp->vha;
+ struct qla_hw_data *ha = vha->hw;
+
+ if (sp->fcport->edif.enable && (sp->fcport->flags & FCF_FCSP_DEVICE))
+ return qla28xx_start_scsi_edif(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;
+
+ /* 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);
+
+ sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH;
+ sp->iores.exch_cnt = 1;
+ sp->iores.iocb_cnt = req_cnt;
+ if (qla_get_fw_resources(sp->qpair, &sp->iores))
+ goto queuing_error;
+
+ if (req->cnt < (req_cnt + 2)) {
+ if (IS_SHADOW_REG_CAPABLE(ha)) {
+ cnt = *req->out_ptr;
+ } else {
+ cnt = rd_reg_dword_relaxed(req->req_q_out);
+ if (qla2x00_check_reg16_for_disconnect(vha, cnt))
+ goto queuing_error;
+ }
+
+ 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->qpair->cmd_cnt++;
+ sp->flags |= SRB_DMA_VALID;
+
+ /* 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(&ha->hardware_lock, flags);
+ return QLA_SUCCESS;
+
+queuing_error:
+ if (tot_dsds)
+ scsi_dma_unmap(cmd);
+
+ qla_put_fw_resources(sp->qpair, &sp->iores);
+ 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;
+
+ sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH;
+ sp->iores.exch_cnt = 1;
+ sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
+ if (qla_get_fw_resources(sp->qpair, &sp->iores))
+ goto queuing_error;
+
+ if (req->cnt < (req_cnt + 2)) {
+ if (IS_SHADOW_REG_CAPABLE(ha)) {
+ cnt = *req->out_ptr;
+ } else {
+ cnt = rd_reg_dword_relaxed(req->req_q_out);
+ if (qla2x00_check_reg16_for_disconnect(vha, cnt))
+ goto queuing_error;
+ }
+ 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++;
+
+ sp->qpair->cmd_cnt++;
+ /* 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(&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) */
+
+ qla_put_fw_resources(sp->qpair, &sp->iores);
+ 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 rsp_que *rsp;
+ 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;
+
+ if (sp->fcport->edif.enable && (sp->fcport->flags & FCF_FCSP_DEVICE))
+ return qla28xx_start_scsi_edif(sp);
+
+ /* Acquire qpair specific lock */
+ spin_lock_irqsave(&qpair->qp_lock, flags);
+
+ /* Setup qpair pointers */
+ req = qpair->req;
+ rsp = qpair->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, 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);
+
+ sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH;
+ sp->iores.exch_cnt = 1;
+ sp->iores.iocb_cnt = req_cnt;
+ if (qla_get_fw_resources(sp->qpair, &sp->iores))
+ goto queuing_error;
+
+ if (req->cnt < (req_cnt + 2)) {
+ if (IS_SHADOW_REG_CAPABLE(ha)) {
+ cnt = *req->out_ptr;
+ } else {
+ cnt = rd_reg_dword_relaxed(req->req_q_out);
+ if (qla2x00_check_reg16_for_disconnect(vha, cnt))
+ goto queuing_error;
+ }
+
+ 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->qpair->cmd_cnt++;
+ sp->flags |= SRB_DMA_VALID;
+
+ /* 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 (tot_dsds)
+ scsi_dma_unmap(cmd);
+
+ qla_put_fw_resources(sp->qpair, &sp->iores);
+ 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;
+
+ sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH;
+ sp->iores.exch_cnt = 1;
+ sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
+ if (qla_get_fw_resources(sp->qpair, &sp->iores))
+ goto queuing_error;
+
+ if (req->cnt < (req_cnt + 2)) {
+ if (IS_SHADOW_REG_CAPABLE(ha)) {
+ cnt = *req->out_ptr;
+ } else {
+ cnt = rd_reg_dword_relaxed(req->req_q_out);
+ if (qla2x00_check_reg16_for_disconnect(vha, cnt))
+ goto queuing_error;
+ }
+
+ 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++;
+
+ sp->qpair->cmd_cnt++;
+ /* 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) */
+
+ qla_put_fw_resources(sp->qpair, &sp->iores);
+ 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(&reg->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(&reg->isp24.req_q_out);
+ else if (IS_QLAFX00(ha))
+ cnt = rd_reg_dword(&reg->ispfx00.req_q_out);
+ else
+ cnt = qla2x00_debounce_register(
+ ISP_REQ_Q_OUT(ha, &reg->isp));
+
+ if (!qpair->use_shadow_reg && cnt == ISP_REG16_DISCONNECT) {
+ qla_schedule_eeh_work(vha);
+ return NULL;
+ }
+
+ 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((u8 __force __iomem *)&pkt->entry_count, req_cnt);
+ wrt_reg_dword((__le32 __force __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);
+ if (sp->vha->flags.nvme2_enabled) {
+ /* Set service parameter BIT_7 for NVME CONF support */
+ logio->io_parameter[0] |=
+ cpu_to_le32(NVME_PRLI_SP_CONF);
+ /* Set service parameter BIT_8 for SLER support */
+ logio->io_parameter[0] |=
+ cpu_to_le32(NVME_PRLI_SP_SLER);
+ /* Set service parameter BIT_9 for PI control support */
+ logio->io_parameter[0] |=
+ cpu_to_le32(NVME_PRLI_SP_PI_CTRL);
+ }
+ }
+
+ 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);
+ if (lio->u.logio.flags & SRB_LOGIN_FCSP) {
+ logio->control_flags |=
+ cpu_to_le16(LCF_COMMON_FEAT | LCF_SKIP_PRLI);
+ logio->io_parameter[0] =
+ cpu_to_le32(LIO_COMM_FEAT_FCSP | LIO_COMM_FEAT_CIO);
+ }
+ }
+ 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 = sp->qpair->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 | TCF_ABORT_TASK_SET|
+ TCF_CLEAR_TASK_SET|TCF_CLEAR_ACA)) {
+ int_to_scsilun(lun, &tsk->lun);
+ host_to_fcp_swap((uint8_t *)&tsk->lun,
+ sizeof(tsk->lun));
+ }
+}
+
+static void
+qla2x00_async_done(struct srb *sp, int res)
+{
+ if (del_timer(&sp->u.iocb_cmd.timer)) {
+ /*
+ * Successfully cancelled the timeout handler
+ * ref: TMR
+ */
+ if (kref_put(&sp->cmd_kref, qla2x00_sp_release))
+ return;
+ }
+ sp->async_done(sp, res);
+}
+
+void
+qla2x00_sp_release(struct kref *kref)
+{
+ struct srb *sp = container_of(kref, struct srb, cmd_kref);
+
+ sp->free(sp);
+}
+
+void
+qla2x00_init_async_sp(srb_t *sp, unsigned long tmo,
+ void (*done)(struct srb *sp, int res))
+{
+ timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0);
+ sp->done = qla2x00_async_done;
+ sp->async_done = done;
+ sp->free = qla2x00_sp_free;
+ sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
+ sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ;
+ 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
+ * ref: INIT
+ */
+ 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;
+ qla2x00_init_async_sp(sp, ELS_DCMD_TIMEOUT,
+ qla2x00_els_dcmd_sp_done);
+ sp->free = qla2x00_els_dcmd_sp_free;
+ sp->u.iocb_cmd.timeout = qla2x00_els_dcmd_iocb_timeout;
+ init_completion(&sp->u.iocb_cmd.u.els_logo.comp);
+
+ 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) {
+ /* ref: INIT */
+ kref_put(&sp->cmd_kref, qla2x00_sp_release);
+ 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) {
+ /* ref: INIT */
+ kref_put(&sp->cmd_kref, qla2x00_sp_release);
+ 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);
+
+ /* ref: INIT */
+ kref_put(&sp->cmd_kref, qla2x00_sp_release);
+ 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) {
+ if (vha->hw->flags.edif_enabled)
+ els_iocb->control_flags = cpu_to_le16(ECF_SEC_LOGIN);
+ else
+ 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->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++;
+}
+
+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);
+ /* For edif, set logout on delete to ensure any residual key from FW is flushed.*/
+ fcport->logout_on_delete = 1;
+ fcport->chip_reset = vha->hw->base_qpair->chip_reset;
+
+ 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);
+ break;
+ }
+ fallthrough;
+ 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;
+ qlt_schedule_sess_for_deletion(fcport);
+ 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;
+ qlt_schedule_sess_for_deletion(fcport);
+ 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);
+ /* ref: INIT */
+ kref_put(&sp->cmd_kref, qla2x00_sp_release);
+ 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
+ * ref: INIT
+ */
+ 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,
+ "%s Enter: PLOGI portid=%06x\n", __func__, fcport->d_id.b24);
+
+ if (wait)
+ sp->flags = SRB_WAKEUP_ON_COMP;
+
+ sp->type = SRB_ELS_DCMD;
+ sp->name = "ELS_DCMD";
+ sp->fcport = fcport;
+ qla2x00_init_async_sp(sp, ELS_DCMD_TIMEOUT + 2,
+ qla2x00_els_dcmd2_sp_done);
+ sp->u.iocb_cmd.timeout = qla2x00_els_dcmd2_iocb_timeout;
+
+ 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.fl_csp, LOGIN_TEMPLATE_SIZE);
+
+ elsio->u.els_plogi.els_cmd = els_opcode;
+ elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode;
+
+ if (els_opcode == ELS_DCMD_PLOGI && DBELL_ACTIVE(vha)) {
+ struct fc_els_flogi *p = ptr;
+
+ p->fl_csp.sp_features |= cpu_to_be16(FC_SP_FT_SEC);
+ }
+
+ 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);
+ /* ref: INIT */
+ kref_put(&sp->cmd_kref, qla2x00_sp_release);
+done:
+ return rval;
+}
+
+/* it is assume qpair lock is held */
+void qla_els_pt_iocb(struct scsi_qla_host *vha,
+ struct els_entry_24xx *els_iocb,
+ struct qla_els_pt_arg *a)
+{
+ 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 = QLA_SKIP_HANDLE;
+ els_iocb->nport_handle = a->nport_handle;
+ els_iocb->rx_xchg_address = a->rx_xchg_address;
+ els_iocb->tx_dsd_count = cpu_to_le16(1);
+ els_iocb->vp_index = a->vp_idx;
+ els_iocb->sof_type = EST_SOFI3;
+ els_iocb->rx_dsd_count = cpu_to_le16(0);
+ els_iocb->opcode = a->els_opcode;
+
+ els_iocb->d_id[0] = a->did.b.al_pa;
+ els_iocb->d_id[1] = a->did.b.area;
+ els_iocb->d_id[2] = a->did.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;
+
+ els_iocb->control_flags = cpu_to_le16(a->control_flags);
+
+ els_iocb->tx_byte_count = cpu_to_le32(a->tx_byte_count);
+ els_iocb->tx_len = cpu_to_le32(a->tx_len);
+ put_unaligned_le64(a->tx_addr, &els_iocb->tx_address);
+
+ els_iocb->rx_byte_count = cpu_to_le32(a->rx_byte_count);
+ els_iocb->rx_len = cpu_to_le32(a->rx_len);
+ put_unaligned_le64(a->rx_addr, &els_iocb->rx_address);
+}
+
+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(
+ &reg->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(
+ &reg->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;
+ srb_t *orig_sp = sp->cmd_sp;
+
+ 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;
+
+ /* need to pass original sp */
+ if (orig_sp)
+ qla_nvme_abort_set_option(abt_iocb, orig_sp);
+
+ /* 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;
+
+ if (ntfy->u.isp24.status_subcode == ELS_PLOGI &&
+ (le16_to_cpu(ntfy->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP) &&
+ sp->vha->hw->flags.edif_enabled) {
+ ql_dbg(ql_dbg_disc, sp->vha, 0x3074,
+ "%s PLOGI NACK sent with FC SECURITY bit, hdl=%x, loopid=%x, to pid %06x\n",
+ sp->name, sp->handle, sp->fcport->loop_id,
+ sp->fcport->d_id.b24);
+ nack->u.isp24.flags |= cpu_to_le16(NOTIFY_ACK_FLAGS_FCSP);
+ }
+}
+
+/*
+ * 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 qla_get_iocbs_resource(struct srb *sp)
+{
+ bool get_exch;
+ bool push_it_through = false;
+
+ if (!ql2xenforce_iocb_limit) {
+ sp->iores.res_type = RESOURCE_NONE;
+ return 0;
+ }
+ sp->iores.res_type = RESOURCE_NONE;
+
+ switch (sp->type) {
+ case SRB_TM_CMD:
+ case SRB_PRLI_CMD:
+ case SRB_ADISC_CMD:
+ push_it_through = true;
+ fallthrough;
+ case SRB_LOGIN_CMD:
+ case SRB_ELS_CMD_RPT:
+ case SRB_ELS_CMD_HST:
+ case SRB_ELS_CMD_HST_NOLOGIN:
+ case SRB_CT_CMD:
+ case SRB_NVME_LS:
+ case SRB_ELS_DCMD:
+ get_exch = true;
+ break;
+
+ case SRB_FXIOCB_DCMD:
+ case SRB_FXIOCB_BCMD:
+ sp->iores.res_type = RESOURCE_NONE;
+ return 0;
+
+ case SRB_SA_UPDATE:
+ case SRB_SA_REPLACE:
+ case SRB_MB_IOCB:
+ case SRB_ABT_CMD:
+ case SRB_NACK_PLOGI:
+ case SRB_NACK_PRLI:
+ case SRB_NACK_LOGO:
+ case SRB_LOGOUT_CMD:
+ case SRB_CTRL_VP:
+ case SRB_MARKER:
+ default:
+ push_it_through = true;
+ get_exch = false;
+ }
+
+ sp->iores.res_type |= RESOURCE_IOCB;
+ sp->iores.iocb_cnt = 1;
+ if (get_exch) {
+ sp->iores.res_type |= RESOURCE_EXCH;
+ sp->iores.exch_cnt = 1;
+ }
+ if (push_it_through)
+ sp->iores.res_type |= RESOURCE_FORCE;
+
+ return qla_get_fw_resources(sp->qpair, &sp->iores);
+}
+
+static void
+qla_marker_iocb(srb_t *sp, struct mrk_entry_24xx *mrk)
+{
+ mrk->entry_type = MARKER_TYPE;
+ mrk->modifier = sp->u.iocb_cmd.u.tmf.modifier;
+ mrk->handle = make_handle(sp->qpair->req->id, sp->handle);
+ if (sp->u.iocb_cmd.u.tmf.modifier != MK_SYNC_ALL) {
+ mrk->nport_handle = cpu_to_le16(sp->u.iocb_cmd.u.tmf.loop_id);
+ int_to_scsilun(sp->u.iocb_cmd.u.tmf.lun, (struct scsi_lun *)&mrk->lun);
+ host_to_fcp_swap(mrk->lun, sizeof(mrk->lun));
+ mrk->vp_index = sp->u.iocb_cmd.u.tmf.vp_index;
+ }
+}
+
+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;
+
+ if (vha->hw->flags.eeh_busy)
+ return -EIO;
+
+ spin_lock_irqsave(qp->qp_lock_ptr, flags);
+ rval = qla_get_iocbs_resource(sp);
+ if (rval) {
+ spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
+ return -EAGAIN;
+ }
+
+ 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_ELS_CMD_HST_NOLOGIN:
+ qla_els_pt_iocb(sp->vha, pkt, &sp->u.bsg_cmd.u.els_arg);
+ ((struct els_entry_24xx *)pkt)->handle = sp->handle;
+ 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;
+ case SRB_SA_UPDATE:
+ qla24xx_sa_update_iocb(sp, pkt);
+ break;
+ case SRB_SA_REPLACE:
+ qla24xx_sa_replace_iocb(sp, pkt);
+ break;
+ case SRB_MARKER:
+ qla_marker_iocb(sp, pkt);
+ break;
+ default:
+ break;
+ }
+
+ if (sp->start_timer) {
+ /* ref: TMR timer ref
+ * this code should be just before start_iocbs function
+ * This will make sure that caller function don't to do
+ * kref_put even on failure
+ */
+ kref_get(&sp->cmd_kref);
+ add_timer(&sp->u.iocb_cmd.timer);
+ }
+
+ wmb();
+ qla2x00_start_iocbs(vha, qp->req);
+done:
+ if (rval)
+ qla_put_fw_resources(sp->qpair, &sp->iores);
+ 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) {
+ if (IS_SHADOW_REG_CAPABLE(ha)) {
+ cnt = *req->out_ptr;
+ } else {
+ cnt = rd_reg_dword_relaxed(req->req_q_out);
+ if (qla2x00_check_reg16_for_disconnect(vha, cnt))
+ goto queuing_error;
+ }
+
+ 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;
+}