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nvme: move sqsize setting to the core 

nvme_enable_ctrl reads the cap register right after, so
no need to do that locally in the transport driver. Have
sqsize setting in nvme_init_identify.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
This commit is contained in:
Sagi Grimberg 2019-07-22 17:06:53 -07:00
parent aa22c8e665
commit c0f2f45be2
7 changed files with 17 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/nvme/host/core.c
View File

@ -1968,16 +1968,23 @@ int nvme_disable_ctrl(struct nvme_ctrl *ctrl, u64 cap)
}
EXPORT_SYMBOL_GPL(nvme_disable_ctrl);
int nvme_enable_ctrl(struct nvme_ctrl *ctrl, u64 cap)
int nvme_enable_ctrl(struct nvme_ctrl *ctrl)
{
/*
* Default to a 4K page size, with the intention to update this
* path in the future to accomodate architectures with differing
* kernel and IO page sizes.
*/
unsigned dev_page_min = NVME_CAP_MPSMIN(cap) + 12, page_shift = 12;
unsigned dev_page_min, page_shift = 12;
int ret;
ret = ctrl->ops->reg_read64(ctrl, NVME_REG_CAP, &ctrl->cap);
if (ret) {
dev_err(ctrl->device, "Reading CAP failed (%d)\n", ret);
return ret;
}
dev_page_min = NVME_CAP_MPSMIN(ctrl->cap) + 12;
if (page_shift < dev_page_min) {
dev_err(ctrl->device,
"Minimum device page size %u too large for host (%u)\n",
@ -1996,7 +2003,7 @@ int nvme_enable_ctrl(struct nvme_ctrl *ctrl, u64 cap)
ret = ctrl->ops->reg_write32(ctrl, NVME_REG_CC, ctrl->ctrl_config);
if (ret)
return ret;
return nvme_wait_ready(ctrl, cap, true);
return nvme_wait_ready(ctrl, ctrl->cap, true);
}
EXPORT_SYMBOL_GPL(nvme_enable_ctrl);
@ -2571,13 +2578,8 @@ int nvme_init_identify(struct nvme_ctrl *ctrl)
dev_err(ctrl->device, "Reading VS failed (%d)\n", ret);
return ret;
}
ret = ctrl->ops->reg_read64(ctrl, NVME_REG_CAP, &ctrl->cap);
if (ret) {
dev_err(ctrl->device, "Reading CAP failed (%d)\n", ret);
return ret;
}
page_shift = NVME_CAP_MPSMIN(ctrl->cap) + 12;
ctrl->sqsize = min_t(int, NVME_CAP_MQES(ctrl->cap), ctrl->sqsize);
if (ctrl->vs >= NVME_VS(1, 1, 0))
ctrl->subsystem = NVME_CAP_NSSRC(ctrl->cap);

12
drivers/nvme/host/fc.c
View File

@ -2648,17 +2648,7 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
* prior connection values
*/
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");
goto out_disconnect_admin_queue;
}
ctrl->ctrl.sqsize =
min_t(int, NVME_CAP_MQES(ctrl->ctrl.cap), ctrl->ctrl.sqsize);
ret = nvme_enable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap);
ret = nvme_enable_ctrl(&ctrl->ctrl);
if (ret)
goto out_disconnect_admin_queue;

2
drivers/nvme/host/nvme.h
View File

@ -427,7 +427,7 @@ bool nvme_cancel_request(struct request *req, void *data, bool reserved);
bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
enum nvme_ctrl_state new_state);
int nvme_disable_ctrl(struct nvme_ctrl *ctrl, u64 cap);
int nvme_enable_ctrl(struct nvme_ctrl *ctrl, u64 cap);
int nvme_enable_ctrl(struct nvme_ctrl *ctrl);
int nvme_shutdown_ctrl(struct nvme_ctrl *ctrl);
int nvme_init_ctrl(struct nvme_ctrl *ctrl, struct device *dev,
const struct nvme_ctrl_ops *ops, unsigned long quirks);

2
drivers/nvme/host/pci.c
View File

@ -1695,7 +1695,7 @@ static int nvme_pci_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, dev->ctrl.cap);
result = nvme_enable_ctrl(&dev->ctrl);
if (result)
return result;

13
drivers/nvme/host/rdma.c
View File

@ -803,18 +803,7 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl,
if (error)
goto out_cleanup_queue;
error = ctrl->ctrl.ops->reg_read64(&ctrl->ctrl, NVME_REG_CAP,
&ctrl->ctrl.cap);
if (error) {
dev_err(ctrl->ctrl.device,
"prop_get NVME_REG_CAP failed\n");
goto out_stop_queue;
}
ctrl->ctrl.sqsize =
min_t(int, NVME_CAP_MQES(ctrl->ctrl.cap), ctrl->ctrl.sqsize);
error = nvme_enable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap);
error = nvme_enable_ctrl(&ctrl->ctrl);
if (error)
goto out_stop_queue;

11
drivers/nvme/host/tcp.c
View File

@ -1707,16 +1707,7 @@ static int nvme_tcp_configure_admin_queue(struct nvme_ctrl *ctrl, bool new)
if (error)
goto out_cleanup_queue;
error = ctrl->ops->reg_read64(ctrl, NVME_REG_CAP, &ctrl->cap);
if (error) {
dev_err(ctrl->device,
"prop_get NVME_REG_CAP failed\n");
goto out_stop_queue;
}
ctrl->sqsize = min_t(int, NVME_CAP_MQES(ctrl->cap), ctrl->sqsize);
error = nvme_enable_ctrl(ctrl, ctrl->cap);
error = nvme_enable_ctrl(ctrl);
if (error)
goto out_stop_queue;

12
drivers/nvme/target/loop.c
View File

@ -369,17 +369,7 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl)
set_bit(NVME_LOOP_Q_LIVE, &ctrl->queues[0].flags);
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");
goto out_cleanup_queue;
}
ctrl->ctrl.sqsize =
min_t(int, NVME_CAP_MQES(ctrl->ctrl.cap), ctrl->ctrl.sqsize);
error = nvme_enable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap);
error = nvme_enable_ctrl(&ctrl->ctrl);
if (error)
goto out_cleanup_queue;