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qla2xxx: add ->map_queues support for nvme

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Implement ->map queues and use the block layer blk_mq_pci_map_queues
helper for mapping queues to CPUs.

With this mapping minimum 10%+ increase in performance is noticed.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Saurav Kashyap 2021-08-23 05:56:49 -07:00 committed by Christoph Hellwig
parent 01d838164b
commit 2b2af50ae8
1 changed files with 15 additions and 0 deletions
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15
drivers/scsi/qla2xxx/qla_nvme.c
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@ -8,6 +8,8 @@
#include <linux/delay.h>
#include <linux/nvme.h>
#include <linux/nvme-fc.h>
#include <linux/blk-mq-pci.h>
#include <linux/blk-mq.h>
static struct nvme_fc_port_template qla_nvme_fc_transport;
@ -642,6 +644,18 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
return rval;
}
static void qla_nvme_map_queues(struct nvme_fc_local_port *lport,
struct blk_mq_queue_map *map)
{
struct scsi_qla_host *vha = lport->private;
int rc;
rc = blk_mq_pci_map_queues(map, vha->hw->pdev, vha->irq_offset);
if (rc)
ql_log(ql_log_warn, vha, 0x21de,
"pci map queue failed 0x%x", rc);
}
static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport)
{
struct scsi_qla_host *vha = lport->private;
@ -676,6 +690,7 @@ static struct nvme_fc_port_template qla_nvme_fc_transport = {
.ls_abort = qla_nvme_ls_abort,
.fcp_io = qla_nvme_post_cmd,
.fcp_abort = qla_nvme_fcp_abort,
.map_queues = qla_nvme_map_queues,
.max_hw_queues = 8,
.max_sgl_segments = 1024,
.max_dif_sgl_segments = 64,