diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_iocb.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_iocb.c | 258 |
1 files changed, 134 insertions, 124 deletions
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 85bc0a48598b..0c145c9e0cd9 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -11,8 +11,8 @@ #include <scsi/scsi_tcq.h> -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(scsi_qla_host_t *); +static void qla2x00_isp_cmd(scsi_qla_host_t *); /** * qla2x00_get_cmd_direction() - Determine control_flag data direction. @@ -30,11 +30,11 @@ qla2x00_get_cmd_direction(srb_t *sp) /* Set transfer direction */ if (sp->cmd->sc_data_direction == DMA_TO_DEVICE) { cflags = CF_WRITE; - sp->fcport->ha->qla_stats.output_bytes += + 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->ha->qla_stats.input_bytes += + sp->fcport->vha->hw->qla_stats.input_bytes += scsi_bufflen(sp->cmd); } return (cflags); @@ -91,20 +91,20 @@ qla2x00_calc_iocbs_64(uint16_t dsds) * 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(scsi_qla_host_t *vha) { cont_entry_t *cont_pkt; - + struct req_que *req = vha->hw->req; /* 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)) = @@ -120,20 +120,21 @@ qla2x00_prep_cont_type0_iocb(scsi_qla_host_t *ha) * 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(scsi_qla_host_t *vha) { cont_a64_entry_t *cont_pkt; + struct req_que *req = vha->hw->req; /* 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)) = @@ -155,7 +156,7 @@ void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, { 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; @@ -172,7 +173,7 @@ void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, return; } - ha = sp->ha; + vha = sp->vha; cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); @@ -190,7 +191,7 @@ void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, * Seven DSDs are available in the Continuation * Type 0 IOCB. */ - cont_pkt = qla2x00_prep_cont_type0_iocb(ha); + cont_pkt = qla2x00_prep_cont_type0_iocb(vha); cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address; avail_dsds = 7; } @@ -214,7 +215,7 @@ void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, { 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; @@ -231,7 +232,7 @@ void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, return; } - ha = sp->ha; + vha = sp->vha; cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); @@ -250,7 +251,7 @@ void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, * Five DSDs are available in the Continuation * Type 1 IOCB. */ - cont_pkt = qla2x00_prep_cont_type1_iocb(ha); + cont_pkt = qla2x00_prep_cont_type1_iocb(vha); cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; avail_dsds = 5; } @@ -274,7 +275,7 @@ qla2x00_start_scsi(srb_t *sp) { 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; @@ -284,33 +285,36 @@ qla2x00_start_scsi(srb_t *sp) uint16_t req_cnt; uint16_t tot_dsds; struct device_reg_2xxx __iomem *reg; + struct qla_hw_data *ha; + struct req_que *req; /* Setup device pointers. */ ret = 0; - ha = sp->ha; + vha = sp->vha; + ha = vha->hw; reg = &ha->iobase->isp; cmd = sp->cmd; + req = ha->req; /* 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, 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]) + if (!req->outstanding_cmds[handle]) break; } if (index == MAX_OUTSTANDING_COMMANDS) @@ -329,25 +333,25 @@ qla2x00_start_scsi(srb_t *sp) /* 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)) { + 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->vha = vha; 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; @@ -373,23 +377,23 @@ qla2x00_start_scsi(srb_t *sp) 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 && + ha->rsp->ring_ptr->signature != RESPONSE_PROCESSED) + qla2x00_process_response_queue(vha); spin_unlock_irqrestore(&ha->hardware_lock, flags); return (QLA_SUCCESS); @@ -415,18 +419,19 @@ queuing_error: * Returns non-zero if a failure occurred, else zero. */ int -__qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun, +__qla2x00_marker(scsi_qla_host_t *vha, uint16_t loop_id, uint16_t lun, uint8_t type) { mrk_entry_t *mrk; struct mrk_entry_24xx *mrk24; - scsi_qla_host_t *pha = to_qla_parent(ha); + 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(pha); + mrk = (mrk_entry_t *)qla2x00_req_pkt(base_vha); 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); } @@ -440,7 +445,7 @@ __qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun, mrk24->lun[1] = LSB(lun); mrk24->lun[2] = MSB(lun); host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); - mrk24->vp_index = ha->vp_idx; + mrk24->vp_index = vha->vp_idx; } else { SET_TARGET_ID(ha, mrk->target, loop_id); mrk->lun = cpu_to_le16(lun); @@ -448,22 +453,22 @@ __qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun, } wmb(); - qla2x00_isp_cmd(pha); + qla2x00_isp_cmd(base_vha); return (QLA_SUCCESS); } int -qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun, +qla2x00_marker(scsi_qla_host_t *vha, uint16_t loop_id, uint16_t lun, uint8_t type) { int ret; unsigned long flags = 0; - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; - spin_lock_irqsave(&pha->hardware_lock, flags); - ret = __qla2x00_marker(ha, loop_id, lun, type); - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_lock_irqsave(&ha->hardware_lock, flags); + ret = __qla2x00_marker(vha, loop_id, lun, type); + spin_unlock_irqrestore(&ha->hardware_lock, flags); return (ret); } @@ -477,18 +482,20 @@ qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun, * 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(scsi_qla_host_t *vha) { + struct qla_hw_data *ha = vha->hw; device_reg_t __iomem *reg = ha->iobase; request_t *pkt = NULL; uint16_t cnt; uint32_t *dword_ptr; uint32_t timer; uint16_t req_cnt = 1; + struct req_que *req = ha->req; /* 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_FWI2_CAPABLE(ha)) cnt = (uint16_t)RD_REG_DWORD( @@ -496,16 +503,16 @@ qla2x00_req_pkt(scsi_qla_host_t *ha) 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 (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; @@ -513,7 +520,7 @@ qla2x00_req_pkt(scsi_qla_host_t *ha) *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; @@ -522,15 +529,14 @@ qla2x00_req_pkt(scsi_qla_host_t *ha) } /* 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 && !ha->flags.init_done) - qla2x00_poll(ha); - + if (!vha->marker_needed && !vha->flags.init_done) + qla2x00_poll(ha->rsp); spin_lock_irq(&ha->hardware_lock); } if (!pkt) { @@ -547,28 +553,30 @@ qla2x00_req_pkt(scsi_qla_host_t *ha) * 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(scsi_qla_host_t *vha) { + struct qla_hw_data *ha = vha->hw; device_reg_t __iomem *reg = ha->iobase; + struct req_que *req = ha->req; 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_FWI2_CAPABLE(ha)) { - WRT_REG_DWORD(®->isp24.req_q_in, ha->req_ring_index); + 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), ha->req_ring_index); + WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), req->ring_index); RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); } @@ -610,7 +618,7 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, { 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; @@ -627,18 +635,18 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, return; } - ha = sp->ha; + vha = sp->vha; /* Set transfer direction */ if (cmd->sc_data_direction == DMA_TO_DEVICE) { cmd_pkt->task_mgmt_flags = __constant_cpu_to_le16(TMF_WRITE_DATA); - sp->fcport->ha->qla_stats.output_bytes += + 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->ha->qla_stats.input_bytes += + sp->fcport->vha->hw->qla_stats.input_bytes += scsi_bufflen(sp->cmd); } @@ -658,7 +666,7 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, * Five DSDs are available in the Continuation * Type 1 IOCB. */ - cont_pkt = qla2x00_prep_cont_type1_iocb(ha); + cont_pkt = qla2x00_prep_cont_type1_iocb(vha); cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; avail_dsds = 5; } @@ -683,7 +691,7 @@ qla24xx_start_scsi(srb_t *sp) { int ret, nseg; unsigned long flags; - scsi_qla_host_t *ha, *pha; + scsi_qla_host_t *vha; struct scsi_cmnd *cmd; uint32_t *clr_ptr; uint32_t index; @@ -693,34 +701,36 @@ qla24xx_start_scsi(srb_t *sp) uint16_t req_cnt; uint16_t tot_dsds; struct device_reg_24xx __iomem *reg; + struct qla_hw_data *ha; + struct req_que *req; /* Setup device pointers. */ ret = 0; - ha = sp->ha; - pha = to_qla_parent(ha); + vha = sp->vha; + ha = vha->hw; reg = &ha->iobase->isp24; cmd = sp->cmd; + req = ha->req; /* 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, 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(&pha->hardware_lock, flags); + 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]) + if (!req->outstanding_cmds[handle]) break; } if (index == MAX_OUTSTANDING_COMMANDS) @@ -738,25 +748,25 @@ qla24xx_start_scsi(srb_t *sp) tot_dsds = nseg; req_cnt = qla24xx_calc_iocbs(tot_dsds); - if (ha->req_q_cnt < (req_cnt + 2)) { + if (req->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->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->vha = vha; 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. */ @@ -789,32 +799,32 @@ qla24xx_start_scsi(srb_t *sp) 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); + WRT_REG_DWORD(®->req_q_in, req->ring_index); RD_REG_DWORD_RELAXED(®->req_q_in); /* PCI Posting. */ /* 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 && + ha->rsp->ring_ptr->signature != RESPONSE_PROCESSED) + qla24xx_process_response_queue(vha); - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_SUCCESS; queuing_error: if (tot_dsds) scsi_dma_unmap(cmd); - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_FUNCTION_FAILED; } |