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authorKeith Busch <keith.busch@intel.com>2017-11-07 15:13:10 -0700
committerJens Axboe <axboe@kernel.dk>2017-11-10 19:53:25 -0700
commit38dabe210fbab4e7e8a03670ab3ba42f247ea08f (patch)
tree18928cb8fff987712a2b1a0d1ef7ee7d549fbd8f
parent4185f25acbc2a191341c7d8cf51e449698eceb06 (diff)
nvme: centralize AEN defines
All the transports were unnecessarilly duplicating the AEN request accounting. This patch defines everything in one place. Signed-off-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Guan Junxiong <guanjunxiong@huawei.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--drivers/nvme/host/core.c2
-rw-r--r--drivers/nvme/host/fc.c33
-rw-r--r--drivers/nvme/host/nvme.h1
-rw-r--r--drivers/nvme/host/pci.c16
-rw-r--r--drivers/nvme/host/rdma.c14
-rw-r--r--drivers/nvme/target/loop.c14
-rw-r--r--include/linux/nvme.h8
7 files changed, 30 insertions, 58 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 6c79b73fe2c3..315087dfcd8d 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2779,7 +2779,7 @@ EXPORT_SYMBOL_GPL(nvme_complete_async_event);
void nvme_queue_async_events(struct nvme_ctrl *ctrl)
{
- ctrl->event_limit = NVME_NR_AERS;
+ ctrl->event_limit = NVME_NR_AEN_COMMANDS;
queue_work(nvme_wq, &ctrl->async_event_work);
}
EXPORT_SYMBOL_GPL(nvme_queue_async_events);
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index da9296a1eb26..f3bfad47a95f 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -30,15 +30,6 @@
/* *************************** Data Structures/Defines ****************** */
-/*
- * We handle AEN commands ourselves and don't even let the
- * block layer know about them.
- */
-#define NVME_FC_NR_AEN_COMMANDS 1
-#define NVME_FC_AQ_BLKMQ_DEPTH \
- (NVME_AQ_DEPTH - NVME_FC_NR_AEN_COMMANDS)
-#define AEN_CMDID_BASE (NVME_FC_AQ_BLKMQ_DEPTH + 1)
-
enum nvme_fc_queue_flags {
NVME_FC_Q_CONNECTED = (1 << 0),
};
@@ -170,7 +161,7 @@ struct nvme_fc_ctrl {
u32 iocnt;
wait_queue_head_t ioabort_wait;
- struct nvme_fc_fcp_op aen_ops[NVME_FC_NR_AEN_COMMANDS];
+ struct nvme_fc_fcp_op aen_ops[NVME_NR_AEN_COMMANDS];
struct nvme_ctrl ctrl;
};
@@ -1546,7 +1537,7 @@ nvme_fc_abort_aen_ops(struct nvme_fc_ctrl *ctrl)
unsigned long flags;
int i, ret;
- for (i = 0; i < NVME_FC_NR_AEN_COMMANDS; i++, aen_op++) {
+ for (i = 0; i < NVME_NR_AEN_COMMANDS; i++, aen_op++) {
if (atomic_read(&aen_op->state) != FCPOP_STATE_ACTIVE)
continue;
@@ -1816,7 +1807,7 @@ nvme_fc_init_aen_ops(struct nvme_fc_ctrl *ctrl)
int i, ret;
aen_op = ctrl->aen_ops;
- for (i = 0; i < NVME_FC_NR_AEN_COMMANDS; i++, aen_op++) {
+ for (i = 0; i < NVME_NR_AEN_COMMANDS; i++, aen_op++) {
private = kzalloc(ctrl->lport->ops->fcprqst_priv_sz,
GFP_KERNEL);
if (!private)
@@ -1826,7 +1817,7 @@ nvme_fc_init_aen_ops(struct nvme_fc_ctrl *ctrl)
sqe = &cmdiu->sqe;
ret = __nvme_fc_init_request(ctrl, &ctrl->queues[0],
aen_op, (struct request *)NULL,
- (AEN_CMDID_BASE + i));
+ (NVME_AQ_BLK_MQ_DEPTH + i));
if (ret) {
kfree(private);
return ret;
@@ -1839,7 +1830,7 @@ nvme_fc_init_aen_ops(struct nvme_fc_ctrl *ctrl)
memset(sqe, 0, sizeof(*sqe));
sqe->common.opcode = nvme_admin_async_event;
/* Note: core layer may overwrite the sqe.command_id value */
- sqe->common.command_id = AEN_CMDID_BASE + i;
+ sqe->common.command_id = NVME_AQ_BLK_MQ_DEPTH + i;
}
return 0;
}
@@ -1851,7 +1842,7 @@ nvme_fc_term_aen_ops(struct nvme_fc_ctrl *ctrl)
int i;
aen_op = ctrl->aen_ops;
- for (i = 0; i < NVME_FC_NR_AEN_COMMANDS; i++, aen_op++) {
+ for (i = 0; i < NVME_NR_AEN_COMMANDS; i++, aen_op++) {
if (!aen_op->fcp_req.private)
continue;
@@ -2402,7 +2393,7 @@ nvme_fc_submit_async_event(struct nvme_ctrl *arg, int aer_idx)
bool terminating = false;
blk_status_t ret;
- if (aer_idx > NVME_FC_NR_AEN_COMMANDS)
+ if (aer_idx > NVME_NR_AEN_COMMANDS)
return;
spin_lock_irqsave(&ctrl->lock, flags);
@@ -2722,16 +2713,16 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
* Create the admin queue
*/
- nvme_fc_init_queue(ctrl, 0, NVME_FC_AQ_BLKMQ_DEPTH);
+ nvme_fc_init_queue(ctrl, 0, NVME_AQ_BLK_MQ_DEPTH);
ret = __nvme_fc_create_hw_queue(ctrl, &ctrl->queues[0], 0,
- NVME_FC_AQ_BLKMQ_DEPTH);
+ NVME_AQ_BLK_MQ_DEPTH);
if (ret)
goto out_free_queue;
ret = nvme_fc_connect_admin_queue(ctrl, &ctrl->queues[0],
- NVME_FC_AQ_BLKMQ_DEPTH,
- (NVME_FC_AQ_BLKMQ_DEPTH / 4));
+ NVME_AQ_BLK_MQ_DEPTH,
+ (NVME_AQ_BLK_MQ_DEPTH / 4));
if (ret)
goto out_delete_hw_queue;
@@ -3145,7 +3136,7 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
memset(&ctrl->admin_tag_set, 0, sizeof(ctrl->admin_tag_set));
ctrl->admin_tag_set.ops = &nvme_fc_admin_mq_ops;
- ctrl->admin_tag_set.queue_depth = NVME_FC_AQ_BLKMQ_DEPTH;
+ ctrl->admin_tag_set.queue_depth = NVME_AQ_MQ_TAG_DEPTH;
ctrl->admin_tag_set.reserved_tags = 2; /* fabric connect + Keep-Alive */
ctrl->admin_tag_set.numa_node = NUMA_NO_NODE;
ctrl->admin_tag_set.cmd_size = sizeof(struct nvme_fc_fcp_op) +
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index f7c21cea9485..a6d750cfa6b2 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -313,7 +313,6 @@ void nvme_remove_namespaces(struct nvme_ctrl *ctrl);
int nvme_sec_submit(void *data, u16 spsp, u8 secp, void *buffer, size_t len,
bool send);
-#define NVME_NR_AERS 1
void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status,
union nvme_result *res);
void nvme_queue_async_events(struct nvme_ctrl *ctrl);
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 32c413ec818c..c3dfd84feef7 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -35,12 +35,6 @@
#define SQ_SIZE(depth) (depth * sizeof(struct nvme_command))
#define CQ_SIZE(depth) (depth * sizeof(struct nvme_completion))
-/*
- * We handle AEN commands ourselves and don't even let the
- * block layer know about them.
- */
-#define NVME_AQ_BLKMQ_DEPTH (NVME_AQ_DEPTH - NVME_NR_AERS)
-
#define SGES_PER_PAGE (PAGE_SIZE / sizeof(struct nvme_sgl_desc))
static int use_threaded_interrupts;
@@ -956,7 +950,7 @@ static inline void nvme_handle_cqe(struct nvme_queue *nvmeq,
* for them but rather special case them here.
*/
if (unlikely(nvmeq->qid == 0 &&
- cqe->command_id >= NVME_AQ_BLKMQ_DEPTH)) {
+ cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH)) {
nvme_complete_async_event(&nvmeq->dev->ctrl,
cqe->status, &cqe->result);
return;
@@ -1057,7 +1051,7 @@ static void nvme_pci_submit_async_event(struct nvme_ctrl *ctrl, int aer_idx)
memset(&c, 0, sizeof(c));
c.common.opcode = nvme_admin_async_event;
- c.common.command_id = NVME_AQ_BLKMQ_DEPTH + aer_idx;
+ c.common.command_id = NVME_AQ_BLK_MQ_DEPTH + aer_idx;
spin_lock_irq(&nvmeq->q_lock);
__nvme_submit_cmd(nvmeq, &c);
@@ -1524,11 +1518,7 @@ static int nvme_alloc_admin_tags(struct nvme_dev *dev)
dev->admin_tagset.ops = &nvme_mq_admin_ops;
dev->admin_tagset.nr_hw_queues = 1;
- /*
- * Subtract one to leave an empty queue entry for 'Full Queue'
- * condition. See NVM-Express 1.2 specification, section 4.1.2.
- */
- dev->admin_tagset.queue_depth = NVME_AQ_BLKMQ_DEPTH - 1;
+ dev->admin_tagset.queue_depth = NVME_AQ_MQ_TAG_DEPTH;
dev->admin_tagset.timeout = ADMIN_TIMEOUT;
dev->admin_tagset.numa_node = dev_to_node(dev->dev);
dev->admin_tagset.cmd_size = nvme_pci_cmd_size(dev, false);
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 32e21ab1ae52..008791bbdfb3 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -41,14 +41,6 @@
#define NVME_RDMA_MAX_INLINE_SEGMENTS 1
-/*
- * We handle AEN commands ourselves and don't even let the
- * block layer know about them.
- */
-#define NVME_RDMA_NR_AEN_COMMANDS 1
-#define NVME_RDMA_AQ_BLKMQ_DEPTH \
- (NVME_AQ_DEPTH - NVME_RDMA_NR_AEN_COMMANDS)
-
struct nvme_rdma_device {
struct ib_device *dev;
struct ib_pd *pd;
@@ -690,7 +682,7 @@ static struct blk_mq_tag_set *nvme_rdma_alloc_tagset(struct nvme_ctrl *nctrl,
set = &ctrl->admin_tag_set;
memset(set, 0, sizeof(*set));
set->ops = &nvme_rdma_admin_mq_ops;
- set->queue_depth = NVME_RDMA_AQ_BLKMQ_DEPTH;
+ set->queue_depth = NVME_AQ_MQ_TAG_DEPTH;
set->reserved_tags = 2; /* connect + keep-alive */
set->numa_node = NUMA_NO_NODE;
set->cmd_size = sizeof(struct nvme_rdma_request) +
@@ -1318,7 +1310,7 @@ static void nvme_rdma_submit_async_event(struct nvme_ctrl *arg, int aer_idx)
memset(cmd, 0, sizeof(*cmd));
cmd->common.opcode = nvme_admin_async_event;
- cmd->common.command_id = NVME_RDMA_AQ_BLKMQ_DEPTH;
+ cmd->common.command_id = NVME_AQ_BLK_MQ_DEPTH;
cmd->common.flags |= NVME_CMD_SGL_METABUF;
nvme_rdma_set_sg_null(cmd);
@@ -1380,7 +1372,7 @@ static int __nvme_rdma_recv_done(struct ib_cq *cq, struct ib_wc *wc, int tag)
* for them but rather special case them here.
*/
if (unlikely(nvme_rdma_queue_idx(queue) == 0 &&
- cqe->command_id >= NVME_RDMA_AQ_BLKMQ_DEPTH))
+ cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH))
nvme_complete_async_event(&queue->ctrl->ctrl, cqe->status,
&cqe->result);
else
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index bc95c6ed531a..7258b796f209 100644
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -23,14 +23,6 @@
#define NVME_LOOP_MAX_SEGMENTS 256
-/*
- * We handle AEN commands ourselves and don't even let the
- * block layer know about them.
- */
-#define NVME_LOOP_NR_AEN_COMMANDS 1
-#define NVME_LOOP_AQ_BLKMQ_DEPTH \
- (NVME_AQ_DEPTH - NVME_LOOP_NR_AEN_COMMANDS)
-
struct nvme_loop_iod {
struct nvme_request nvme_req;
struct nvme_command cmd;
@@ -112,7 +104,7 @@ static void nvme_loop_queue_response(struct nvmet_req *req)
* for them but rather special case them here.
*/
if (unlikely(nvme_loop_queue_idx(queue) == 0 &&
- cqe->command_id >= NVME_LOOP_AQ_BLKMQ_DEPTH)) {
+ cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH)) {
nvme_complete_async_event(&queue->ctrl->ctrl, cqe->status,
&cqe->result);
} else {
@@ -200,7 +192,7 @@ static void nvme_loop_submit_async_event(struct nvme_ctrl *arg, int aer_idx)
memset(&iod->cmd, 0, sizeof(iod->cmd));
iod->cmd.common.opcode = nvme_admin_async_event;
- iod->cmd.common.command_id = NVME_LOOP_AQ_BLKMQ_DEPTH;
+ iod->cmd.common.command_id = NVME_AQ_BLK_MQ_DEPTH;
iod->cmd.common.flags |= NVME_CMD_SGL_METABUF;
if (!nvmet_req_init(&iod->req, &queue->nvme_cq, &queue->nvme_sq,
@@ -356,7 +348,7 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl)
memset(&ctrl->admin_tag_set, 0, sizeof(ctrl->admin_tag_set));
ctrl->admin_tag_set.ops = &nvme_loop_admin_mq_ops;
- ctrl->admin_tag_set.queue_depth = NVME_LOOP_AQ_BLKMQ_DEPTH;
+ ctrl->admin_tag_set.queue_depth = NVME_AQ_MQ_TAG_DEPTH;
ctrl->admin_tag_set.reserved_tags = 2; /* connect + keep-alive */
ctrl->admin_tag_set.numa_node = NUMA_NO_NODE;
ctrl->admin_tag_set.cmd_size = sizeof(struct nvme_loop_iod) +
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index fd1d4508a612..89ffa7eed2fd 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -90,6 +90,14 @@ enum {
};
#define NVME_AQ_DEPTH 32
+#define NVME_NR_AEN_COMMANDS 1
+#define NVME_AQ_BLK_MQ_DEPTH (NVME_AQ_DEPTH - NVME_NR_AEN_COMMANDS)
+
+/*
+ * Subtract one to leave an empty queue entry for 'Full Queue' condition. See
+ * NVM-Express 1.2 specification, section 4.1.2.
+ */
+#define NVME_AQ_MQ_TAG_DEPTH (NVME_AQ_BLK_MQ_DEPTH - 1)
enum {
NVME_REG_CAP = 0x0000, /* Controller Capabilities */