/*
* QLogic Fibre Channel HBA Driver
- * Copyright (c) 2003-2005 QLogic Corporation
+ * Copyright (c) 2003-2008 QLogic Corporation
*
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include <scsi/scsi_tcq.h>
-static inline uint16_t qla2x00_get_cmd_direction(struct scsi_cmnd *cmd);
-static inline cont_entry_t *qla2x00_prep_cont_type0_iocb(scsi_qla_host_t *);
-static inline cont_a64_entry_t *qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *);
-static request_t *qla2x00_req_pkt(scsi_qla_host_t *ha);
-static void qla2x00_isp_cmd(scsi_qla_host_t *ha);
+static request_t *qla2x00_req_pkt(struct scsi_qla_host *, struct req_que *,
+ struct rsp_que *rsp);
+static void qla2x00_isp_cmd(struct scsi_qla_host *, struct req_que *);
/**
* qla2x00_get_cmd_direction() - Determine control_flag data direction.
* Returns the proper CF_* direction based on CDB.
*/
static inline uint16_t
-qla2x00_get_cmd_direction(struct scsi_cmnd *cmd)
+qla2x00_get_cmd_direction(srb_t *sp)
{
uint16_t cflags;
cflags = 0;
/* Set transfer direction */
- if (cmd->sc_data_direction == DMA_TO_DEVICE)
+ if (sp->cmd->sc_data_direction == DMA_TO_DEVICE) {
cflags = CF_WRITE;
- else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
+ sp->fcport->vha->hw->qla_stats.output_bytes +=
+ scsi_bufflen(sp->cmd);
+ } else if (sp->cmd->sc_data_direction == DMA_FROM_DEVICE) {
cflags = CF_READ;
+ sp->fcport->vha->hw->qla_stats.input_bytes +=
+ scsi_bufflen(sp->cmd);
+ }
return (cflags);
}
* Returns a pointer to the Continuation Type 0 IOCB packet.
*/
static inline cont_entry_t *
-qla2x00_prep_cont_type0_iocb(scsi_qla_host_t *ha)
+qla2x00_prep_cont_type0_iocb(struct req_que *req, struct scsi_qla_host *vha)
{
cont_entry_t *cont_pkt;
-
/* Adjust ring index. */
- ha->req_ring_index++;
- if (ha->req_ring_index == ha->request_q_length) {
- ha->req_ring_index = 0;
- ha->request_ring_ptr = ha->request_ring;
+ req->ring_index++;
+ if (req->ring_index == req->length) {
+ req->ring_index = 0;
+ req->ring_ptr = req->ring;
} else {
- ha->request_ring_ptr++;
+ req->ring_ptr++;
}
- cont_pkt = (cont_entry_t *)ha->request_ring_ptr;
+ cont_pkt = (cont_entry_t *)req->ring_ptr;
/* Load packet defaults. */
*((uint32_t *)(&cont_pkt->entry_type)) =
* Returns a pointer to the continuation type 1 IOCB packet.
*/
static inline cont_a64_entry_t *
-qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *ha)
+qla2x00_prep_cont_type1_iocb(struct req_que *req, scsi_qla_host_t *vha)
{
cont_a64_entry_t *cont_pkt;
/* Adjust ring index. */
- ha->req_ring_index++;
- if (ha->req_ring_index == ha->request_q_length) {
- ha->req_ring_index = 0;
- ha->request_ring_ptr = ha->request_ring;
+ req->ring_index++;
+ if (req->ring_index == req->length) {
+ req->ring_index = 0;
+ req->ring_ptr = req->ring;
} else {
- ha->request_ring_ptr++;
+ req->ring_ptr++;
}
- cont_pkt = (cont_a64_entry_t *)ha->request_ring_ptr;
+ cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
/* Load packet defaults. */
*((uint32_t *)(&cont_pkt->entry_type)) =
{
uint16_t avail_dsds;
uint32_t *cur_dsd;
- scsi_qla_host_t *ha;
+ scsi_qla_host_t *vha;
struct scsi_cmnd *cmd;
+ struct scatterlist *sg;
+ int i;
+ struct req_que *req;
cmd = sp->cmd;
__constant_cpu_to_le32(COMMAND_TYPE);
/* No data transfer */
- if (cmd->request_bufflen == 0 || cmd->sc_data_direction == DMA_NONE) {
+ if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
cmd_pkt->byte_count = __constant_cpu_to_le32(0);
return;
}
- ha = sp->ha;
+ vha = sp->fcport->vha;
+ req = sp->que;
- cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(cmd));
+ cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
/* Three DSDs are available in the Command Type 2 IOCB */
avail_dsds = 3;
cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address;
/* Load data segments */
- if (cmd->use_sg != 0) {
- struct scatterlist *cur_seg;
- struct scatterlist *end_seg;
-
- cur_seg = (struct scatterlist *)cmd->request_buffer;
- end_seg = cur_seg + tot_dsds;
- while (cur_seg < end_seg) {
- 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(ha);
- cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address;
- avail_dsds = 7;
- }
-
- *cur_dsd++ = cpu_to_le32(sg_dma_address(cur_seg));
- *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg));
- avail_dsds--;
-
- cur_seg++;
+ 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(req, vha);
+ cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address;
+ avail_dsds = 7;
}
- } else {
- *cur_dsd++ = cpu_to_le32(sp->dma_handle);
- *cur_dsd++ = cpu_to_le32(cmd->request_bufflen);
+
+ *cur_dsd++ = cpu_to_le32(sg_dma_address(sg));
+ *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
+ avail_dsds--;
}
}
{
uint16_t avail_dsds;
uint32_t *cur_dsd;
- scsi_qla_host_t *ha;
+ scsi_qla_host_t *vha;
struct scsi_cmnd *cmd;
+ struct scatterlist *sg;
+ int i;
+ struct req_que *req;
cmd = sp->cmd;
__constant_cpu_to_le32(COMMAND_A64_TYPE);
/* No data transfer */
- if (cmd->request_bufflen == 0 || cmd->sc_data_direction == DMA_NONE) {
+ if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
cmd_pkt->byte_count = __constant_cpu_to_le32(0);
return;
}
- ha = sp->ha;
+ vha = sp->fcport->vha;
+ req = sp->que;
- cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(cmd));
+ cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
/* Two DSDs are available in the Command Type 3 IOCB */
avail_dsds = 2;
cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address;
/* Load data segments */
- if (cmd->use_sg != 0) {
- struct scatterlist *cur_seg;
- struct scatterlist *end_seg;
-
- cur_seg = (struct scatterlist *)cmd->request_buffer;
- end_seg = cur_seg + tot_dsds;
- while (cur_seg < end_seg) {
- dma_addr_t sle_dma;
- cont_a64_entry_t *cont_pkt;
-
- /* Allocate additional continuation packets? */
- if (avail_dsds == 0) {
- /*
- * Five DSDs are available in the Continuation
- * Type 1 IOCB.
- */
- cont_pkt = qla2x00_prep_cont_type1_iocb(ha);
- cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
- avail_dsds = 5;
- }
-
- sle_dma = sg_dma_address(cur_seg);
- *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
- *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
- *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg));
- avail_dsds--;
-
- cur_seg++;
+ scsi_for_each_sg(cmd, sg, tot_dsds, i) {
+ dma_addr_t sle_dma;
+ cont_a64_entry_t *cont_pkt;
+
+ /* Allocate additional continuation packets? */
+ if (avail_dsds == 0) {
+ /*
+ * Five DSDs are available in the Continuation
+ * Type 1 IOCB.
+ */
+ cont_pkt = qla2x00_prep_cont_type1_iocb(req, vha);
+ cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
+ avail_dsds = 5;
}
- } else {
- *cur_dsd++ = cpu_to_le32(LSD(sp->dma_handle));
- *cur_dsd++ = cpu_to_le32(MSD(sp->dma_handle));
- *cur_dsd++ = cpu_to_le32(cmd->request_bufflen);
+
+ sle_dma = sg_dma_address(sg);
+ *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
+ *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
+ *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
+ avail_dsds--;
}
}
* qla2x00_start_scsi() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
- * Returns non-zero if a failure occured, else zero.
+ * Returns non-zero if a failure occurred, else zero.
*/
int
qla2x00_start_scsi(srb_t *sp)
{
- int ret;
+ int ret, nseg;
unsigned long flags;
- scsi_qla_host_t *ha;
+ scsi_qla_host_t *vha;
struct scsi_cmnd *cmd;
uint32_t *clr_ptr;
uint32_t index;
uint32_t handle;
cmd_entry_t *cmd_pkt;
- struct scatterlist *sg;
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. */
ret = 0;
- ha = sp->ha;
+ vha = sp->fcport->vha;
+ ha = vha->hw;
reg = &ha->iobase->isp;
cmd = sp->cmd;
+ 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 (ha->marker_needed != 0) {
- if (qla2x00_marker(ha, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
+ if (vha->marker_needed != 0) {
+ if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL)
+ != QLA_SUCCESS)
return (QLA_FUNCTION_FAILED);
- }
- ha->marker_needed = 0;
+ vha->marker_needed = 0;
}
/* Acquire ring specific lock */
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Check for room in outstanding command list. */
- handle = ha->current_outstanding_cmd;
+ handle = req->current_outstanding_cmd;
for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
handle++;
if (handle == MAX_OUTSTANDING_COMMANDS)
handle = 1;
- if (ha->outstanding_cmds[handle] == 0)
+ if (!req->outstanding_cmds[handle])
break;
}
if (index == MAX_OUTSTANDING_COMMANDS)
goto queuing_error;
/* Map the sg table so we have an accurate count of sg entries needed */
- if (cmd->use_sg) {
- sg = (struct scatterlist *) cmd->request_buffer;
- tot_dsds = pci_map_sg(ha->pdev, sg, cmd->use_sg,
- cmd->sc_data_direction);
- if (tot_dsds == 0)
- goto queuing_error;
- } else if (cmd->request_bufflen) {
- dma_addr_t req_dma;
-
- req_dma = pci_map_single(ha->pdev, cmd->request_buffer,
- cmd->request_bufflen, cmd->sc_data_direction);
- if (dma_mapping_error(req_dma))
+ 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;
- sp->dma_handle = req_dma;
- tot_dsds = 1;
- }
+ tot_dsds = nseg;
/* Calculate the number of request entries needed. */
- req_cnt = ha->isp_ops.calc_req_entries(tot_dsds);
- if (ha->req_q_cnt < (req_cnt + 2)) {
+ 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 (ha->req_ring_index < cnt)
- ha->req_q_cnt = cnt - ha->req_ring_index;
+ if (req->ring_index < cnt)
+ req->cnt = cnt - req->ring_index;
else
- ha->req_q_cnt = ha->request_q_length -
- (ha->req_ring_index - cnt);
+ req->cnt = req->length -
+ (req->ring_index - cnt);
}
- if (ha->req_q_cnt < (req_cnt + 2))
+ if (req->cnt < (req_cnt + 2))
goto queuing_error;
/* Build command packet */
- ha->current_outstanding_cmd = handle;
- ha->outstanding_cmds[handle] = sp;
- sp->ha = ha;
+ req->current_outstanding_cmd = handle;
+ req->outstanding_cmds[handle] = sp;
+ sp->que = req;
sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
- ha->req_q_cnt -= req_cnt;
+ req->cnt -= req_cnt;
- cmd_pkt = (cmd_entry_t *)ha->request_ring_ptr;
+ 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;
/* Load SCSI command packet. */
memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len);
- cmd_pkt->byte_count = cpu_to_le32((uint32_t)cmd->request_bufflen);
+ 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);
+ 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. */
- ha->req_ring_index++;
- if (ha->req_ring_index == ha->request_q_length) {
- ha->req_ring_index = 0;
- ha->request_ring_ptr = ha->request_ring;
+ req->ring_index++;
+ if (req->ring_index == req->length) {
+ req->ring_index = 0;
+ req->ring_ptr = req->ring;
} else
- ha->request_ring_ptr++;
+ req->ring_ptr++;
sp->flags |= SRB_DMA_VALID;
/* Set chip new ring index. */
- WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), ha->req_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 (ha->flags.process_response_queue &&
- ha->response_ring_ptr->signature != RESPONSE_PROCESSED)
- qla2x00_process_response_queue(ha);
+ 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 (cmd->use_sg && tot_dsds) {
- sg = (struct scatterlist *) cmd->request_buffer;
- pci_unmap_sg(ha->pdev, sg, cmd->use_sg,
- cmd->sc_data_direction);
- } else if (tot_dsds) {
- pci_unmap_single(ha->pdev, sp->dma_handle,
- cmd->request_bufflen, cmd->sc_data_direction);
- }
+ if (tot_dsds)
+ scsi_dma_unmap(cmd);
+
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return (QLA_FUNCTION_FAILED);
*
* Can be called from both normal and interrupt context.
*
- * Returns non-zero if a failure occured, else zero.
+ * Returns non-zero if a failure occurred, else zero.
*/
int
-__qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun,
- uint8_t type)
+__qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req,
+ struct rsp_que *rsp, uint16_t loop_id,
+ uint16_t lun, uint8_t type)
{
mrk_entry_t *mrk;
struct mrk_entry_24xx *mrk24;
+ struct qla_hw_data *ha = vha->hw;
+ scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
mrk24 = NULL;
- mrk = (mrk_entry_t *)qla2x00_req_pkt(ha);
+ mrk = (mrk_entry_t *)qla2x00_req_pkt(vha, req, rsp);
if (mrk == NULL) {
DEBUG2_3(printk("%s(%ld): failed to allocate Marker IOCB.\n",
- __func__, ha->host_no));
+ __func__, base_vha->host_no));
return (QLA_FUNCTION_FAILED);
}
mrk->entry_type = MARKER_TYPE;
mrk->modifier = type;
if (type != MK_SYNC_ALL) {
- if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
+ if (IS_FWI2_CAPABLE(ha)) {
mrk24 = (struct mrk_entry_24xx *) mrk;
mrk24->nport_handle = cpu_to_le16(loop_id);
mrk24->lun[1] = LSB(lun);
mrk24->lun[2] = MSB(lun);
+ host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun));
+ mrk24->vp_index = vha->vp_idx;
} else {
SET_TARGET_ID(ha, mrk->target, loop_id);
mrk->lun = cpu_to_le16(lun);
}
wmb();
- qla2x00_isp_cmd(ha);
+ qla2x00_isp_cmd(vha, req);
return (QLA_SUCCESS);
}
int
-qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun,
- uint8_t type)
+qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req,
+ struct rsp_que *rsp, uint16_t loop_id, uint16_t lun,
+ uint8_t type)
{
int ret;
unsigned long flags = 0;
- spin_lock_irqsave(&ha->hardware_lock, flags);
- ret = __qla2x00_marker(ha, loop_id, lun, type);
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ spin_lock_irqsave(&vha->hw->hardware_lock, flags);
+ ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type);
+ spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
return (ret);
}
* Returns NULL if function failed, else, a pointer to the request packet.
*/
static request_t *
-qla2x00_req_pkt(scsi_qla_host_t *ha)
+qla2x00_req_pkt(struct scsi_qla_host *vha, struct req_que *req,
+ struct rsp_que *rsp)
{
- device_reg_t __iomem *reg = ha->iobase;
+ struct qla_hw_data *ha = vha->hw;
+ device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id);
request_t *pkt = NULL;
uint16_t cnt;
uint32_t *dword_ptr;
/* Wait 1 second for slot. */
for (timer = HZ; timer; timer--) {
- if ((req_cnt + 2) >= ha->req_q_cnt) {
+ if ((req_cnt + 2) >= req->cnt) {
/* Calculate number of free request entries. */
- if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
- cnt = (uint16_t)RD_REG_DWORD(
- ®->isp24.req_q_out);
- else
- cnt = qla2x00_debounce_register(
- ISP_REQ_Q_OUT(ha, ®->isp));
- if (ha->req_ring_index < cnt)
- ha->req_q_cnt = cnt - ha->req_ring_index;
+ if (ha->mqenable)
+ cnt = (uint16_t)
+ RD_REG_DWORD(®->isp25mq.req_q_out);
+ else {
+ if (IS_FWI2_CAPABLE(ha))
+ cnt = (uint16_t)RD_REG_DWORD(
+ ®->isp24.req_q_out);
+ else
+ cnt = qla2x00_debounce_register(
+ ISP_REQ_Q_OUT(ha, ®->isp));
+ }
+ if (req->ring_index < cnt)
+ req->cnt = cnt - req->ring_index;
else
- ha->req_q_cnt = ha->request_q_length -
- (ha->req_ring_index - cnt);
+ req->cnt = req->length -
+ (req->ring_index - cnt);
}
/* If room for request in request ring. */
- if ((req_cnt + 2) < ha->req_q_cnt) {
- ha->req_q_cnt--;
- pkt = ha->request_ring_ptr;
+ if ((req_cnt + 2) < req->cnt) {
+ req->cnt--;
+ pkt = req->ring_ptr;
/* Zero out packet. */
dword_ptr = (uint32_t *)pkt;
*dword_ptr++ = 0;
/* Set system defined field. */
- pkt->sys_define = (uint8_t)ha->req_ring_index;
+ pkt->sys_define = (uint8_t)req->ring_index;
/* Set entry count. */
pkt->entry_count = 1;
}
/* Release ring specific lock */
- spin_unlock(&ha->hardware_lock);
+ spin_unlock_irq(&ha->hardware_lock);
udelay(2); /* 2 us */
/* Check for pending interrupts. */
/* During init we issue marker directly */
- if (!ha->marker_needed)
- qla2x00_poll(ha);
-
+ if (!vha->marker_needed && !vha->flags.init_done)
+ qla2x00_poll(rsp);
spin_lock_irq(&ha->hardware_lock);
}
if (!pkt) {
* Note: The caller must hold the hardware lock before calling this routine.
*/
static void
-qla2x00_isp_cmd(scsi_qla_host_t *ha)
+qla2x00_isp_cmd(struct scsi_qla_host *vha, struct req_que *req)
{
- device_reg_t __iomem *reg = ha->iobase;
+ struct qla_hw_data *ha = vha->hw;
+ device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id);
+ struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
DEBUG5(printk("%s(): IOCB data:\n", __func__));
DEBUG5(qla2x00_dump_buffer(
- (uint8_t *)ha->request_ring_ptr, REQUEST_ENTRY_SIZE));
+ (uint8_t *)req->ring_ptr, REQUEST_ENTRY_SIZE));
/* Adjust ring index. */
- ha->req_ring_index++;
- if (ha->req_ring_index == ha->request_q_length) {
- ha->req_ring_index = 0;
- ha->request_ring_ptr = ha->request_ring;
+ req->ring_index++;
+ if (req->ring_index == req->length) {
+ req->ring_index = 0;
+ req->ring_ptr = req->ring;
} else
- ha->request_ring_ptr++;
+ req->ring_ptr++;
/* Set chip new ring index. */
- if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
- WRT_REG_DWORD(®->isp24.req_q_in, ha->req_ring_index);
- RD_REG_DWORD_RELAXED(®->isp24.req_q_in);
- } else {
- WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), ha->req_ring_index);
- RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp));
+ if (ha->mqenable) {
+ WRT_REG_DWORD(®->isp25mq.req_q_in, req->ring_index);
+ RD_REG_DWORD(&ioreg->hccr);
+ }
+ else {
+ if (IS_FWI2_CAPABLE(ha)) {
+ WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index);
+ RD_REG_DWORD_RELAXED(®->isp24.req_q_in);
+ } else {
+ WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp),
+ req->ring_index);
+ RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp));
+ }
}
}
{
uint16_t avail_dsds;
uint32_t *cur_dsd;
- scsi_qla_host_t *ha;
+ scsi_qla_host_t *vha;
struct scsi_cmnd *cmd;
+ struct scatterlist *sg;
+ int i;
+ struct req_que *req;
cmd = sp->cmd;
__constant_cpu_to_le32(COMMAND_TYPE_7);
/* No data transfer */
- if (cmd->request_bufflen == 0 || cmd->sc_data_direction == DMA_NONE) {
+ if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
cmd_pkt->byte_count = __constant_cpu_to_le32(0);
return;
}
- ha = sp->ha;
+ vha = sp->fcport->vha;
+ req = sp->que;
/* Set transfer direction */
- if (cmd->sc_data_direction == DMA_TO_DEVICE)
+ if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cmd_pkt->task_mgmt_flags =
__constant_cpu_to_le16(TMF_WRITE_DATA);
- else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
+ sp->fcport->vha->hw->qla_stats.output_bytes +=
+ scsi_bufflen(sp->cmd);
+ } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cmd_pkt->task_mgmt_flags =
__constant_cpu_to_le16(TMF_READ_DATA);
+ sp->fcport->vha->hw->qla_stats.input_bytes +=
+ scsi_bufflen(sp->cmd);
+ }
/* One DSD is available in the Command Type 3 IOCB */
avail_dsds = 1;
cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address;
/* Load data segments */
- if (cmd->use_sg != 0) {
- struct scatterlist *cur_seg;
- struct scatterlist *end_seg;
-
- cur_seg = (struct scatterlist *)cmd->request_buffer;
- end_seg = cur_seg + tot_dsds;
- while (cur_seg < end_seg) {
- dma_addr_t sle_dma;
- cont_a64_entry_t *cont_pkt;
-
- /* Allocate additional continuation packets? */
- if (avail_dsds == 0) {
- /*
- * Five DSDs are available in the Continuation
- * Type 1 IOCB.
- */
- cont_pkt = qla2x00_prep_cont_type1_iocb(ha);
- cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
- avail_dsds = 5;
- }
-
- sle_dma = sg_dma_address(cur_seg);
- *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
- *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
- *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg));
- avail_dsds--;
- cur_seg++;
+ scsi_for_each_sg(cmd, sg, tot_dsds, i) {
+ dma_addr_t sle_dma;
+ cont_a64_entry_t *cont_pkt;
+
+ /* Allocate additional continuation packets? */
+ if (avail_dsds == 0) {
+ /*
+ * Five DSDs are available in the Continuation
+ * Type 1 IOCB.
+ */
+ cont_pkt = qla2x00_prep_cont_type1_iocb(req, vha);
+ cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
+ avail_dsds = 5;
}
- } else {
- *cur_dsd++ = cpu_to_le32(LSD(sp->dma_handle));
- *cur_dsd++ = cpu_to_le32(MSD(sp->dma_handle));
- *cur_dsd++ = cpu_to_le32(cmd->request_bufflen);
+
+ sle_dma = sg_dma_address(sg);
+ *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
+ *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
+ *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
+ avail_dsds--;
}
}
* qla24xx_start_scsi() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
- * Returns non-zero if a failure occured, else zero.
+ * Returns non-zero if a failure occurred, else zero.
*/
int
qla24xx_start_scsi(srb_t *sp)
{
- int ret;
+ int ret, nseg;
unsigned long flags;
- scsi_qla_host_t *ha;
- struct scsi_cmnd *cmd;
uint32_t *clr_ptr;
uint32_t index;
uint32_t handle;
struct cmd_type_7 *cmd_pkt;
- struct scatterlist *sg;
uint16_t cnt;
uint16_t req_cnt;
uint16_t tot_dsds;
- struct device_reg_24xx __iomem *reg;
+ struct req_que *req = NULL;
+ struct rsp_que *rsp = NULL;
+ struct scsi_cmnd *cmd = sp->cmd;
+ struct scsi_qla_host *vha = sp->fcport->vha;
+ struct qla_hw_data *ha = vha->hw;
+ uint16_t que_id;
/* Setup device pointers. */
ret = 0;
- ha = sp->ha;
- reg = &ha->iobase->isp24;
- cmd = sp->cmd;
+ que_id = vha->req_ques[0];
+
+ req = ha->req_q_map[que_id];
+ sp->que = req;
+
+ if (req->rsp)
+ rsp = req->rsp;
+ else
+ rsp = ha->rsp_q_map[que_id];
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
/* Send marker if required */
- if (ha->marker_needed != 0) {
- if (qla2x00_marker(ha, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
+ if (vha->marker_needed != 0) {
+ if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL)
+ != QLA_SUCCESS)
return QLA_FUNCTION_FAILED;
- }
- ha->marker_needed = 0;
+ vha->marker_needed = 0;
}
/* Acquire ring specific lock */
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Check for room in outstanding command list. */
- handle = ha->current_outstanding_cmd;
+ handle = req->current_outstanding_cmd;
for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
handle++;
if (handle == MAX_OUTSTANDING_COMMANDS)
handle = 1;
- if (ha->outstanding_cmds[handle] == 0)
+ if (!req->outstanding_cmds[handle])
break;
}
if (index == MAX_OUTSTANDING_COMMANDS)
goto queuing_error;
/* Map the sg table so we have an accurate count of sg entries needed */
- if (cmd->use_sg) {
- sg = (struct scatterlist *) cmd->request_buffer;
- tot_dsds = pci_map_sg(ha->pdev, sg, cmd->use_sg,
- cmd->sc_data_direction);
- if (tot_dsds == 0)
- goto queuing_error;
- } else if (cmd->request_bufflen) {
- dma_addr_t req_dma;
-
- req_dma = pci_map_single(ha->pdev, cmd->request_buffer,
- cmd->request_bufflen, cmd->sc_data_direction);
- if (dma_mapping_error(req_dma))
+ 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;
- sp->dma_handle = req_dma;
- tot_dsds = 1;
- }
+ tot_dsds = nseg;
req_cnt = qla24xx_calc_iocbs(tot_dsds);
- if (ha->req_q_cnt < (req_cnt + 2)) {
- cnt = (uint16_t)RD_REG_DWORD_RELAXED(®->req_q_out);
- if (ha->req_ring_index < cnt)
- ha->req_q_cnt = cnt - ha->req_ring_index;
+ if (req->cnt < (req_cnt + 2)) {
+ cnt = RD_REG_DWORD_RELAXED(req->req_q_out);
+
+ if (req->ring_index < cnt)
+ req->cnt = cnt - req->ring_index;
else
- ha->req_q_cnt = ha->request_q_length -
- (ha->req_ring_index - cnt);
+ req->cnt = req->length -
+ (req->ring_index - cnt);
}
- if (ha->req_q_cnt < (req_cnt + 2))
+ if (req->cnt < (req_cnt + 2))
goto queuing_error;
/* Build command packet. */
- ha->current_outstanding_cmd = handle;
- ha->outstanding_cmds[handle] = sp;
- sp->ha = ha;
+ req->current_outstanding_cmd = handle;
+ req->outstanding_cmds[handle] = sp;
sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
- ha->req_q_cnt -= req_cnt;
+ req->cnt -= req_cnt;
- cmd_pkt = (struct cmd_type_7 *)ha->request_ring_ptr;
+ cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
cmd_pkt->handle = handle;
/* Zero out remaining portion of packet. */
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
+ cmd_pkt->vp_index = sp->fcport->vp_idx;
int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
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)cmd->request_bufflen);
+ cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
/* Build IOCB segments */
qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds);
wmb();
/* Adjust ring index. */
- ha->req_ring_index++;
- if (ha->req_ring_index == ha->request_q_length) {
- ha->req_ring_index = 0;
- ha->request_ring_ptr = ha->request_ring;
+ req->ring_index++;
+ if (req->ring_index == req->length) {
+ req->ring_index = 0;
+ req->ring_ptr = req->ring;
} else
- ha->request_ring_ptr++;
+ req->ring_ptr++;
sp->flags |= SRB_DMA_VALID;
/* Set chip new ring index. */
- WRT_REG_DWORD(®->req_q_in, ha->req_ring_index);
- RD_REG_DWORD_RELAXED(®->req_q_in); /* PCI Posting. */
+ WRT_REG_DWORD(req->req_q_in, req->ring_index);
+ RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr);
/* Manage unprocessed RIO/ZIO commands in response queue. */
- if (ha->flags.process_response_queue &&
- ha->response_ring_ptr->signature != RESPONSE_PROCESSED)
- qla24xx_process_response_queue(ha);
+ if (vha->flags.process_response_queue &&
+ rsp->ring_ptr->signature != RESPONSE_PROCESSED)
+ qla24xx_process_response_queue(rsp);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
queuing_error:
- if (cmd->use_sg && tot_dsds) {
- sg = (struct scatterlist *) cmd->request_buffer;
- pci_unmap_sg(ha->pdev, sg, cmd->use_sg,
- cmd->sc_data_direction);
- } else if (tot_dsds) {
- pci_unmap_single(ha->pdev, sp->dma_handle,
- cmd->request_bufflen, cmd->sc_data_direction);
- }
+ if (tot_dsds)
+ scsi_dma_unmap(cmd);
+
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_FUNCTION_FAILED;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff