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NVMe: Include device and queue numbers in interrupt name

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On larger systems with many drives, it may help debugging to know which
queue is tied to which interrupt, just by looking at /proc/interrupts.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
This commit is contained in:
Matthew Wilcox 2014-01-27 15:57:22 -05:00
parent 09ece1424f
commit 3193f07bb7
1 changed files with 9 additions and 5 deletions
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14
drivers/block/nvme-core.c
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@ -76,6 +76,7 @@ struct async_cmd_info {
struct nvme_queue {
struct device *q_dmadev;
struct nvme_dev *dev;
char irqname[24]; /* nvme4294967295-65535\0 */
spinlock_t q_lock;
struct nvme_command *sq_cmds;
volatile struct nvme_completion *cqes;
@ -1235,6 +1236,8 @@ static struct nvme_queue *nvme_alloc_queue(struct nvme_dev *dev, int qid,
nvmeq->q_dmadev = dmadev;
nvmeq->dev = dev;
snprintf(nvmeq->irqname, sizeof(nvmeq->irqname), "nvme%dq%d",
dev->instance, qid);
spin_lock_init(&nvmeq->q_lock);
nvmeq->cq_head = 0;
nvmeq->cq_phase = 1;
@ -1297,7 +1300,7 @@ static int nvme_create_queue(struct nvme_queue *nvmeq, int qid)
if (result < 0)
goto release_cq;
result = queue_request_irq(dev, nvmeq, "nvme");
result = queue_request_irq(dev, nvmeq, nvmeq->irqname);
if (result < 0)
goto release_sq;
@ -1415,7 +1418,7 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev)
if (result)
return result;
result = queue_request_irq(dev, nvmeq, "nvme admin");
result = queue_request_irq(dev, nvmeq, nvmeq->irqname);
if (result)
return result;
@ -1873,6 +1876,7 @@ static size_t db_bar_size(struct nvme_dev *dev, unsigned nr_io_queues)
static int nvme_setup_io_queues(struct nvme_dev *dev)
{
struct nvme_queue *adminq = dev->queues[0];
struct pci_dev *pdev = dev->pci_dev;
int result, cpu, i, vecs, nr_io_queues, size, q_depth;
@ -1899,7 +1903,7 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
}
/* Deregister the admin queue's interrupt */
free_irq(dev->entry[0].vector, dev->queues[0]);
free_irq(dev->entry[0].vector, adminq);
vecs = nr_io_queues;
for (i = 0; i < vecs; i++)
@ -1937,9 +1941,9 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
*/
nr_io_queues = vecs;
result = queue_request_irq(dev, dev->queues[0], "nvme admin");
result = queue_request_irq(dev, adminq, adminq->irqname);
if (result) {
dev->queues[0]->q_suspended = 1;
adminq->q_suspended = 1;
goto free_queues;
}