From mboxrd@z Thu Jan 1 00:00:00 1970 From: sagi@grimberg.me (Sagi Grimberg) Date: Thu, 29 Jun 2017 14:09:07 +0300 Subject: [PATCH 2/7] nvme: move ctrl cap to struct nvme_ctrl In-Reply-To: <1498734552-14845-1-git-send-email-sagi@grimberg.me> References: <1498734552-14845-1-git-send-email-sagi@grimberg.me> Message-ID: <1498734552-14845-3-git-send-email-sagi@grimberg.me> instead of keeping it in every single driver controller context. Signed-off-by: Sagi Grimberg --- drivers/nvme/host/fc.c | 8 +++----- drivers/nvme/host/nvme.h | 1 + drivers/nvme/host/pci.c | 18 ++++++++---------- drivers/nvme/host/rdma.c | 10 +++++----- drivers/nvme/target/loop.c | 7 +++---- 5 files changed, 20 insertions(+), 24 deletions(-) diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index 7eb006427caf..2f990d979037 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -152,8 +152,6 @@ struct nvme_fc_ctrl { u64 association_id; - u64 cap; - struct list_head ctrl_list; /* rport->ctrl_list */ struct blk_mq_tag_set admin_tag_set; @@ -2328,7 +2326,7 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl) * prior connection values */ - ret = nvmf_reg_read64(&ctrl->ctrl, NVME_REG_CAP, &ctrl->cap); + ret = nvmf_reg_read64(&ctrl->ctrl, NVME_REG_CAP, &ctrl->ctrl.cap); if (ret) { dev_err(ctrl->ctrl.device, "prop_get NVME_REG_CAP failed\n"); @@ -2336,9 +2334,9 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl) } ctrl->ctrl.sqsize = - min_t(int, NVME_CAP_MQES(ctrl->cap) + 1, ctrl->ctrl.sqsize); + min_t(int, NVME_CAP_MQES(ctrl->ctrl.cap) + 1, ctrl->ctrl.sqsize); - ret = nvme_enable_ctrl(&ctrl->ctrl, ctrl->cap); + ret = nvme_enable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap); if (ret) goto out_disconnect_admin_queue; diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 6c51d92b7fab..e0b83311d5de 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -144,6 +144,7 @@ struct nvme_ctrl { u32 ctrl_config; u32 queue_count; + u64 cap; u32 page_size; u32 max_hw_sectors; u16 oncs; diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 0c83bfaa63e6..559c5df21c2a 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -1144,8 +1144,7 @@ static void nvme_disable_admin_queue(struct nvme_dev *dev, bool shutdown) if (shutdown) nvme_shutdown_ctrl(&dev->ctrl); else - nvme_disable_ctrl(&dev->ctrl, lo_hi_readq( - dev->bar + NVME_REG_CAP)); + nvme_disable_ctrl(&dev->ctrl, dev->ctrl.cap); spin_lock_irq(&nvmeq->q_lock); nvme_process_cq(nvmeq); @@ -1388,7 +1387,6 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev) { int result; u32 aqa; - u64 cap = lo_hi_readq(dev->bar + NVME_REG_CAP); struct nvme_queue *nvmeq; result = nvme_remap_bar(dev, db_bar_size(dev, 0)); @@ -1396,13 +1394,13 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev) return result; dev->subsystem = readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 1, 0) ? - NVME_CAP_NSSRC(cap) : 0; + NVME_CAP_NSSRC(dev->ctrl.cap) : 0; if (dev->subsystem && (readl(dev->bar + NVME_REG_CSTS) & NVME_CSTS_NSSRO)) writel(NVME_CSTS_NSSRO, dev->bar + NVME_REG_CSTS); - result = nvme_disable_ctrl(&dev->ctrl, cap); + result = nvme_disable_ctrl(&dev->ctrl, dev->ctrl.cap); if (result < 0) return result; @@ -1421,7 +1419,7 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev) lo_hi_writeq(nvmeq->sq_dma_addr, dev->bar + NVME_REG_ASQ); lo_hi_writeq(nvmeq->cq_dma_addr, dev->bar + NVME_REG_ACQ); - result = nvme_enable_ctrl(&dev->ctrl, cap); + result = nvme_enable_ctrl(&dev->ctrl, dev->ctrl.cap); if (result) return result; @@ -1865,7 +1863,6 @@ static int nvme_dev_add(struct nvme_dev *dev) static int nvme_pci_enable(struct nvme_dev *dev) { - u64 cap; int result = -ENOMEM; struct pci_dev *pdev = to_pci_dev(dev->dev); @@ -1892,10 +1889,11 @@ static int nvme_pci_enable(struct nvme_dev *dev) if (result < 0) return result; - cap = lo_hi_readq(dev->bar + NVME_REG_CAP); + dev->ctrl.cap = lo_hi_readq(dev->bar + NVME_REG_CAP); - dev->q_depth = min_t(int, NVME_CAP_MQES(cap) + 1, NVME_Q_DEPTH); - dev->db_stride = 1 << NVME_CAP_STRIDE(cap); + dev->q_depth = min_t(int, NVME_CAP_MQES(dev->ctrl.cap) + 1, + NVME_Q_DEPTH); + dev->db_stride = 1 << NVME_CAP_STRIDE(dev->ctrl.cap); dev->dbs = dev->bar + 4096; /* diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index c4bacad3fe23..2ab0cdb4d881 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -118,7 +118,6 @@ struct nvme_rdma_ctrl { struct blk_mq_tag_set admin_tag_set; struct nvme_rdma_device *device; - u64 cap; u32 max_fr_pages; struct sockaddr_storage addr; @@ -728,7 +727,7 @@ static void nvme_rdma_reconnect_ctrl_work(struct work_struct *work) set_bit(NVME_RDMA_Q_LIVE, &ctrl->queues[0].flags); - ret = nvme_enable_ctrl(&ctrl->ctrl, ctrl->cap); + ret = nvme_enable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap); if (ret) goto requeue; @@ -1573,7 +1572,8 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl) set_bit(NVME_RDMA_Q_LIVE, &ctrl->queues[0].flags); - error = nvmf_reg_read64(&ctrl->ctrl, NVME_REG_CAP, &ctrl->cap); + error = nvmf_reg_read64(&ctrl->ctrl, NVME_REG_CAP, + &ctrl->ctrl.cap); if (error) { dev_err(ctrl->ctrl.device, "prop_get NVME_REG_CAP failed\n"); @@ -1581,9 +1581,9 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl) } ctrl->ctrl.sqsize = - min_t(int, NVME_CAP_MQES(ctrl->cap), ctrl->ctrl.sqsize); + min_t(int, NVME_CAP_MQES(ctrl->ctrl.cap), ctrl->ctrl.sqsize); - error = nvme_enable_ctrl(&ctrl->ctrl, ctrl->cap); + error = nvme_enable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap); if (error) goto out_cleanup_queue; diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c index edf0e2ab19e3..568ed8625696 100644 --- a/drivers/nvme/target/loop.c +++ b/drivers/nvme/target/loop.c @@ -48,7 +48,6 @@ struct nvme_loop_ctrl { struct blk_mq_tag_set admin_tag_set; struct list_head list; - u64 cap; struct blk_mq_tag_set tag_set; struct nvme_loop_iod async_event_iod; struct nvme_ctrl ctrl; @@ -387,7 +386,7 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl) if (error) goto out_cleanup_queue; - error = nvmf_reg_read64(&ctrl->ctrl, NVME_REG_CAP, &ctrl->cap); + error = nvmf_reg_read64(&ctrl->ctrl, NVME_REG_CAP, &ctrl->ctrl.cap); if (error) { dev_err(ctrl->ctrl.device, "prop_get NVME_REG_CAP failed\n"); @@ -395,9 +394,9 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl) } ctrl->ctrl.sqsize = - min_t(int, NVME_CAP_MQES(ctrl->cap), ctrl->ctrl.sqsize); + min_t(int, NVME_CAP_MQES(ctrl->ctrl.cap), ctrl->ctrl.sqsize); - error = nvme_enable_ctrl(&ctrl->ctrl, ctrl->cap); + error = nvme_enable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap); if (error) goto out_cleanup_queue; -- 2.7.4