From 6fcd98fd2c731f87ab5ccd604d61d0ef20a8c5b2 Mon Sep 17 00:00:00 2001 From: "himanshu.madhani@cavium.com" Date: Fri, 21 Jul 2017 09:32:23 -0700 Subject: [PATCH] scsi: qla2xxx: Cleanup FC-NVMe code This patch does not change any functionality. Following cleanups have been done as requested by reviewer - Changed waitQ --> waitq - Collapsed multiple debug statements into single - Remove extra parentheses in if-else as per operator precedence - Remove unnecessary casting Cc: Johannes Thumshirn Signed-off-by: Himanshu Madhani Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_def.h | 6 ++-- drivers/scsi/qla2xxx/qla_nvme.c | 61 ++++++++++++++++++----------------------- drivers/scsi/qla2xxx/qla_os.c | 6 ++-- 3 files changed, 33 insertions(+), 40 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 0730b10..1635e98 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -470,7 +470,7 @@ typedef struct srb { uint8_t cmd_type; uint8_t pad[3]; atomic_t ref_count; - wait_queue_head_t nvme_ls_waitQ; + wait_queue_head_t nvme_ls_waitq; struct fc_port *fcport; struct scsi_qla_host *vha; uint32_t handle; @@ -2302,7 +2302,7 @@ typedef struct fc_port { struct work_struct nvme_del_work; atomic_t nvme_ref_count; - wait_queue_head_t nvme_waitQ; + wait_queue_head_t nvme_waitq; uint32_t nvme_prli_service_param; #define NVME_PRLI_SP_CONF BIT_7 #define NVME_PRLI_SP_INITIATOR BIT_5 @@ -4130,7 +4130,7 @@ typedef struct scsi_qla_host { struct nvme_fc_local_port *nvme_local_port; atomic_t nvme_ref_count; - wait_queue_head_t nvme_waitQ; + wait_queue_head_t nvme_waitq; struct list_head nvme_rport_list; atomic_t nvme_active_aen_cnt; uint16_t nvme_last_rptd_aen; diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c index f3710a7..3c58d1b 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.c +++ b/drivers/scsi/qla2xxx/qla_nvme.c @@ -77,15 +77,15 @@ int qla_nvme_register_remote(scsi_qla_host_t *vha, fc_port_t *fcport) fcport->nvme_remote_port->private = fcport; fcport->nvme_flag |= NVME_FLAG_REGISTERED; atomic_set(&fcport->nvme_ref_count, 1); - init_waitqueue_head(&fcport->nvme_waitQ); + init_waitqueue_head(&fcport->nvme_waitq); rport->fcport = fcport; list_add_tail(&rport->list, &vha->nvme_rport_list); return 0; } /* Allocate a queue for NVMe traffic */ -static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport, unsigned int qidx, - u16 qsize, void **handle) +static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport, + unsigned int qidx, u16 qsize, void **handle) { struct scsi_qla_host *vha; struct qla_hw_data *ha; @@ -193,13 +193,11 @@ static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport, struct qla_hw_data *ha = fcport->vha->hw; rval = ha->isp_ops->abort_command(sp); - if (rval != QLA_SUCCESS) - ql_log(ql_log_warn, fcport->vha, 0x2125, - "%s: failed to abort LS command for SP:%p rval=%x\n", - __func__, sp, rval); ql_dbg(ql_dbg_io, fcport->vha, 0x212b, - "%s: aborted sp:%p on fcport:%p\n", __func__, sp, fcport); + "%s: %s LS command for sp=%p on fcport=%p rval=%x\n", __func__, + (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted", + sp, fcport, rval); } static void qla_nvme_ls_complete(struct work_struct *work) @@ -214,7 +212,7 @@ static void qla_nvme_ls_complete(struct work_struct *work) static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd) { - fc_port_t *fcport = (fc_port_t *)rport->private; + fc_port_t *fcport = rport->private; struct srb_iocb *nvme; struct nvme_private *priv = fd->private; struct scsi_qla_host *vha; @@ -236,7 +234,7 @@ static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, sp->name = "nvme_ls"; sp->done = qla_nvme_sp_ls_done; atomic_set(&sp->ref_count, 1); - init_waitqueue_head(&sp->nvme_ls_waitQ); + init_waitqueue_head(&sp->nvme_ls_waitq); nvme = &sp->u.iocb_cmd; priv->sp = sp; priv->fd = fd; @@ -258,7 +256,7 @@ static int qla_nvme_ls_req(struct nvme_fc_local_port *lport, ql_log(ql_log_warn, vha, 0x700e, "qla2x00_start_sp failed = %d\n", rval); atomic_dec(&sp->ref_count); - wake_up(&sp->nvme_ls_waitQ); + wake_up(&sp->nvme_ls_waitq); return rval; } @@ -276,20 +274,18 @@ static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport, struct qla_hw_data *ha = fcport->vha->hw; rval = ha->isp_ops->abort_command(sp); - if (!rval) - ql_log(ql_log_warn, fcport->vha, 0x2127, - "%s: failed to abort command for SP:%p rval=%x\n", - __func__, sp, rval); - ql_dbg(ql_dbg_io, fcport->vha, 0x2126, - "%s: aborted sp:%p on fcport:%p\n", __func__, sp, fcport); + ql_dbg(ql_dbg_io, fcport->vha, 0x2127, + "%s: %s command for sp=%p on fcport=%p rval=%x\n", __func__, + (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted", + sp, fcport, rval); } static void qla_nvme_poll(struct nvme_fc_local_port *lport, void *hw_queue_handle) { struct scsi_qla_host *vha = lport->private; unsigned long flags; - struct qla_qpair *qpair = (struct qla_qpair *)hw_queue_handle; + struct qla_qpair *qpair = hw_queue_handle; /* Acquire ring specific lock */ spin_lock_irqsave(&qpair->qp_lock, flags); @@ -487,7 +483,7 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport, struct scsi_qla_host *vha; int rval = QLA_FUNCTION_FAILED; srb_t *sp; - struct qla_qpair *qpair = (struct qla_qpair *)hw_queue_handle; + struct qla_qpair *qpair = hw_queue_handle; struct nvme_private *priv; if (!fd) { @@ -496,7 +492,7 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport, } priv = fd->private; - fcport = (fc_port_t *)rport->private; + fcport = rport->private; if (!fcport) { ql_log(ql_log_warn, NULL, 0x210e, "No fcport ptr\n"); return rval; @@ -512,7 +508,7 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport, return -EIO; atomic_set(&sp->ref_count, 1); - init_waitqueue_head(&sp->nvme_ls_waitQ); + init_waitqueue_head(&sp->nvme_ls_waitq); priv->sp = sp; sp->type = SRB_NVME_CMD; sp->name = "nvme_cmd"; @@ -526,7 +522,7 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport, ql_log(ql_log_warn, vha, 0x212d, "qla2x00_start_nvme_mq failed = %d\n", rval); atomic_dec(&sp->ref_count); - wake_up(&sp->nvme_ls_waitQ); + wake_up(&sp->nvme_ls_waitq); return -EIO; } @@ -538,7 +534,7 @@ static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport) struct scsi_qla_host *vha = lport->private; atomic_dec(&vha->nvme_ref_count); - wake_up_all(&vha->nvme_waitQ); + wake_up_all(&vha->nvme_waitq); ql_log(ql_log_info, vha, 0x210f, "localport delete of %p completed.\n", vha->nvme_local_port); @@ -550,11 +546,11 @@ static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport) fc_port_t *fcport; struct nvme_rport *r_port, *trport; - fcport = (fc_port_t *)rport->private; + fcport = rport->private; fcport->nvme_remote_port = NULL; fcport->nvme_flag &= ~NVME_FLAG_REGISTERED; atomic_dec(&fcport->nvme_ref_count); - wake_up_all(&fcport->nvme_waitQ); + wake_up_all(&fcport->nvme_waitq); list_for_each_entry_safe(r_port, trport, &fcport->vha->nvme_rport_list, list) { @@ -594,7 +590,7 @@ static int qla_nvme_wait_on_command(srb_t *sp) { int ret = QLA_SUCCESS; - wait_event_timeout(sp->nvme_ls_waitQ, (atomic_read(&sp->ref_count) > 1), + wait_event_timeout(sp->nvme_ls_waitq, (atomic_read(&sp->ref_count) > 1), NVME_ABORT_POLLING_PERIOD*HZ); if (atomic_read(&sp->ref_count) > 1) @@ -607,7 +603,7 @@ static int qla_nvme_wait_on_rport_del(fc_port_t *fcport) { int ret = QLA_SUCCESS; - wait_event_timeout(fcport->nvme_waitQ, + wait_event_timeout(fcport->nvme_waitq, atomic_read(&fcport->nvme_ref_count), NVME_ABORT_POLLING_PERIOD*HZ); @@ -625,12 +621,9 @@ void qla_nvme_abort(struct qla_hw_data *ha, srb_t *sp) int rval; rval = ha->isp_ops->abort_command(sp); - if (!rval) { - if (!qla_nvme_wait_on_command(sp)) - ql_log(ql_log_warn, NULL, 0x2112, - "nvme_wait_on_command timed out waiting on sp=%p\n", - sp); - } + if (!rval && !qla_nvme_wait_on_command(sp)) + ql_log(ql_log_warn, NULL, 0x2112, + "nvme_wait_on_comand timed out waiting on sp=%p\n", sp); } static void qla_nvme_abort_all(fc_port_t *fcport) @@ -757,5 +750,5 @@ void qla_nvme_register_hba(scsi_qla_host_t *vha) } atomic_set(&vha->nvme_ref_count, 1); vha->nvme_local_port->private = vha; - init_waitqueue_head(&vha->nvme_waitQ); + init_waitqueue_head(&vha->nvme_waitq); } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index df57655..635ce75 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -710,7 +710,7 @@ qla2x00_sp_free_dma(void *ptr) } end: - if ((sp->type != SRB_NVME_CMD) && (sp->type != SRB_NVME_LS)) { + if (sp->type != SRB_NVME_CMD && sp->type != SRB_NVME_LS) { CMD_SP(cmd) = NULL; qla2x00_rel_sp(sp); } @@ -1715,8 +1715,8 @@ qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res) if (sp) { req->outstanding_cmds[cnt] = NULL; if (sp->cmd_type == TYPE_SRB) { - if ((sp->type == SRB_NVME_CMD) || - (sp->type == SRB_NVME_LS)) { + if (sp->type == SRB_NVME_CMD || + sp->type == SRB_NVME_LS) { sp_get(sp); spin_unlock_irqrestore( &ha->hardware_lock, flags); -- 2.7.4