Commit 2b2af50a authored by Saurav Kashyap's avatar Saurav Kashyap Committed by Christoph Hellwig
Browse files

qla2xxx: add ->map_queues support for nvme 



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: default avatarSaurav Kashyap <skashyap@marvell.com>
Signed-off-by: default avatarNilesh Javali <njavali@marvell.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent 01d83816

drivers/scsi/qla2xxx/qla_nvme.c

+15 −0
Original line number Diff line number Diff line
@@ -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,