From: Andrew Vasquez Date: Tue, 24 Mar 2009 16:07:55 +0000 (-0700) Subject: [SCSI] qla2xxx: Refactor request/response-queue register handling. X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=08029990b25b76b1bc167336358bd21812567f2a;p=deliverable%2Flinux.git [SCSI] qla2xxx: Refactor request/response-queue register handling. Original code used an overabundance of indirect pointers to function helpers. Instead, the driver can exploit the immutable properties of a queue's ISP-association and ID, which are both known at queue initialization-time. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index e0c5bb54b258..c2bc67c42648 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -372,10 +372,10 @@ struct device_reg_2xxx { }; struct device_reg_25xxmq { - volatile uint32_t req_q_in; - volatile uint32_t req_q_out; - volatile uint32_t rsp_q_in; - volatile uint32_t rsp_q_out; + uint32_t req_q_in; + uint32_t req_q_out; + uint32_t rsp_q_in; + uint32_t rsp_q_out; }; typedef union { @@ -2102,9 +2102,6 @@ struct isp_operations { int (*get_flash_version) (struct scsi_qla_host *, void *); int (*start_scsi) (srb_t *); - void (*wrt_req_reg) (struct qla_hw_data *, uint16_t, uint16_t); - void (*wrt_rsp_reg) (struct qla_hw_data *, uint16_t, uint16_t); - uint16_t (*rd_req_reg) (struct qla_hw_data *, uint16_t); }; /* MSI-X Support *************************************************************/ @@ -2200,6 +2197,8 @@ struct rsp_que { dma_addr_t dma; response_t *ring; response_t *ring_ptr; + uint32_t __iomem *rsp_q_in; /* FWI2-capable only. */ + uint32_t __iomem *rsp_q_out; uint16_t ring_index; uint16_t out_ptr; uint16_t length; @@ -2217,6 +2216,8 @@ struct req_que { dma_addr_t dma; request_t *ring; request_t *ring_ptr; + uint32_t __iomem *req_q_in; /* FWI2-capable only. */ + uint32_t __iomem *req_q_out; uint16_t ring_index; uint16_t in_ptr; uint16_t cnt; @@ -2277,7 +2278,7 @@ struct qla_hw_data { #define MIN_IOBASE_LEN 0x100 /* Multi queue data structs */ - device_reg_t *mqiobase; + device_reg_t __iomem *mqiobase; uint16_t msix_count; uint8_t mqenable; struct req_que **req_q_map; diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 2258152b1f41..a8abbb95730d 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -776,7 +776,7 @@ qla24xx_start_scsi(srb_t *sp) req_cnt = qla24xx_calc_iocbs(tot_dsds); if (req->cnt < (req_cnt + 2)) { - cnt = ha->isp_ops->rd_req_reg(ha, req->id); + cnt = RD_REG_DWORD_RELAXED(req->req_q_out); if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; @@ -836,7 +836,8 @@ qla24xx_start_scsi(srb_t *sp) sp->flags |= SRB_DMA_VALID; /* Set chip new ring index. */ - ha->isp_ops->wrt_req_reg(ha, req->id, req->ring_index); + WRT_REG_DWORD(req->req_q_in, req->ring_index); + RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); /* Manage unprocessed RIO/ZIO commands in response queue. */ if (vha->flags.process_response_queue && @@ -854,35 +855,3 @@ queuing_error: return QLA_FUNCTION_FAILED; } - -uint16_t -qla24xx_rd_req_reg(struct qla_hw_data *ha, uint16_t id) -{ - device_reg_t __iomem *reg = (void *) ha->iobase; - return RD_REG_DWORD_RELAXED(®->isp24.req_q_out); -} - -uint16_t -qla25xx_rd_req_reg(struct qla_hw_data *ha, uint16_t id) -{ - device_reg_t __iomem *reg = (void *) ha->mqiobase + QLA_QUE_PAGE * id; - return RD_REG_DWORD_RELAXED(®->isp25mq.req_q_out); -} - -void -qla24xx_wrt_req_reg(struct qla_hw_data *ha, uint16_t id, uint16_t index) -{ - device_reg_t __iomem *reg = (void *) ha->iobase; - WRT_REG_DWORD(®->isp24.req_q_in, index); - RD_REG_DWORD_RELAXED(®->isp24.req_q_in); -} - -void -qla25xx_wrt_req_reg(struct qla_hw_data *ha, uint16_t id, uint16_t index) -{ - device_reg_t __iomem *reg = (void *) ha->mqiobase + QLA_QUE_PAGE * id; - struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp; - WRT_REG_DWORD(®->isp25mq.req_q_in, index); - RD_REG_DWORD(&ioreg->hccr); /* PCI posting */ -} - diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index f250e5b7897c..8e91f4aec977 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -1499,7 +1499,6 @@ qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) void qla24xx_process_response_queue(struct rsp_que *rsp) { - struct qla_hw_data *ha = rsp->hw; struct sts_entry_24xx *pkt; struct scsi_qla_host *vha; @@ -1553,7 +1552,7 @@ qla24xx_process_response_queue(struct rsp_que *rsp) } /* Adjust ring index */ - ha->isp_ops->wrt_rsp_reg(ha, rsp->id, rsp->ring_index); + WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index); } static void @@ -2117,18 +2116,3 @@ int qla25xx_request_irq(struct rsp_que *rsp) msix->rsp = rsp; return ret; } - -void -qla25xx_wrt_rsp_reg(struct qla_hw_data *ha, uint16_t id, uint16_t index) -{ - device_reg_t __iomem *reg = (void *) ha->mqiobase + QLA_QUE_PAGE * id; - WRT_REG_DWORD(®->isp25mq.rsp_q_out, index); -} - -void -qla24xx_wrt_rsp_reg(struct qla_hw_data *ha, uint16_t id, uint16_t index) -{ - device_reg_t __iomem *reg = (void *) ha->iobase; - WRT_REG_DWORD(®->isp24.rsp_q_out, index); -} - diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index 785c61279e6e..e2bd36e7e885 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -584,6 +584,7 @@ qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options, struct req_que *req = NULL; struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); uint16_t que_id = 0; + device_reg_t __iomem *reg; req = kzalloc(sizeof(struct req_que), GFP_KERNEL); if (req == NULL) { @@ -631,6 +632,9 @@ qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options, req->ring_index = 0; req->cnt = req->length; req->id = que_id; + reg = ISP_QUE_REG(ha, que_id); + req->req_q_in = ®->isp25mq.req_q_in; + req->req_q_out = ®->isp25mq.req_q_out; req->max_q_depth = ha->req_q_map[0]->max_q_depth; mutex_unlock(&ha->vport_lock); @@ -658,7 +662,8 @@ qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options, int ret = 0; struct rsp_que *rsp = NULL; struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); - uint16_t que_id = 0;; + uint16_t que_id = 0; + device_reg_t __iomem *reg; rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL); if (rsp == NULL) { @@ -706,6 +711,9 @@ qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options, rsp->ring_ptr = rsp->ring; rsp->ring_index = 0; rsp->id = que_id; + reg = ISP_QUE_REG(ha, que_id); + rsp->rsp_q_in = ®->isp25mq.rsp_q_in; + rsp->rsp_q_out = ®->isp25mq.rsp_q_out; mutex_unlock(&ha->vport_lock); ret = qla25xx_request_irq(rsp); diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 3ddfa889e949..a6761ff73e24 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1351,9 +1351,6 @@ static struct isp_operations qla2100_isp_ops = { .write_optrom = qla2x00_write_optrom_data, .get_flash_version = qla2x00_get_flash_version, .start_scsi = qla2x00_start_scsi, - .wrt_req_reg = NULL, - .wrt_rsp_reg = NULL, - .rd_req_reg = NULL, }; static struct isp_operations qla2300_isp_ops = { @@ -1389,9 +1386,6 @@ static struct isp_operations qla2300_isp_ops = { .write_optrom = qla2x00_write_optrom_data, .get_flash_version = qla2x00_get_flash_version, .start_scsi = qla2x00_start_scsi, - .wrt_req_reg = NULL, - .wrt_rsp_reg = NULL, - .rd_req_reg = NULL, }; static struct isp_operations qla24xx_isp_ops = { @@ -1427,9 +1421,6 @@ static struct isp_operations qla24xx_isp_ops = { .write_optrom = qla24xx_write_optrom_data, .get_flash_version = qla24xx_get_flash_version, .start_scsi = qla24xx_start_scsi, - .wrt_req_reg = qla24xx_wrt_req_reg, - .wrt_rsp_reg = qla24xx_wrt_rsp_reg, - .rd_req_reg = qla24xx_rd_req_reg, }; static struct isp_operations qla25xx_isp_ops = { @@ -1465,9 +1456,6 @@ static struct isp_operations qla25xx_isp_ops = { .write_optrom = qla24xx_write_optrom_data, .get_flash_version = qla24xx_get_flash_version, .start_scsi = qla24xx_start_scsi, - .wrt_req_reg = qla24xx_wrt_req_reg, - .wrt_rsp_reg = qla24xx_wrt_rsp_reg, - .rd_req_reg = qla24xx_rd_req_reg, }; static struct isp_operations qla81xx_isp_ops = { @@ -1503,9 +1491,6 @@ static struct isp_operations qla81xx_isp_ops = { .write_optrom = qla24xx_write_optrom_data, .get_flash_version = qla24xx_get_flash_version, .start_scsi = qla24xx_start_scsi, - .wrt_req_reg = qla24xx_wrt_req_reg, - .wrt_rsp_reg = qla24xx_wrt_rsp_reg, - .rd_req_reg = qla24xx_rd_req_reg, }; static inline void @@ -1927,10 +1912,16 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) ha->rsp_q_map[0] = rsp; ha->req_q_map[0] = req; + /* FWI2-capable only. */ + req->req_q_in = &ha->iobase->isp24.req_q_in; + req->req_q_out = &ha->iobase->isp24.req_q_out; + rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in; + rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out; if (ha->mqenable) { - ha->isp_ops->wrt_req_reg = qla25xx_wrt_req_reg; - ha->isp_ops->wrt_rsp_reg = qla25xx_wrt_rsp_reg; - ha->isp_ops->rd_req_reg = qla25xx_rd_req_reg; + req->req_q_in = &ha->mqiobase->isp25mq.req_q_in; + req->req_q_out = &ha->mqiobase->isp25mq.req_q_out; + rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in; + rsp->rsp_q_out = &ha->mqiobase->isp25mq.rsp_q_out; } if (qla2x00_initialize_adapter(base_vha)) {