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scsi: qla2xxx: Add ql2xnvme_queues module param to configure number of NVMe queues 

Add ql2xnvme_queues module parameter to configure number of NVMe queues

Usage:

Number of NVMe Queues that can be configured.

Final value will be min(ql2xnvme_queues, num_cpus, num_chip_queues),

  1 - Minimum number of queues supported
  8 - Default value
128 - Maximum number of queues supported

Link: https://lore.kernel.org/r/20220110050218.3958-10-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Shreyas Deodhar <sdeodhar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Shreyas Deodhar 2022-01-09 21:02:10 -08:00 коммит произвёл Martin K. Petersen
Родитель 1cfbbacbee
Коммит 65120de26a
4 изменённых файлов: 27 добавлений и 2 удалений
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1
drivers/scsi/qla2xxx/qla_gbl.h
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@ -192,6 +192,7 @@ extern int ql2xfulldump_on_mpifail;
extern int ql2xsecenable;
extern int ql2xenforce_iocb_limit;
extern int ql2xabts_wait_nvme;
extern u32 ql2xnvme_queues;
extern int qla2x00_loop_reset(scsi_qla_host_t *);
extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int);

16
drivers/scsi/qla2xxx/qla_nvme.c
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@ -710,7 +710,7 @@ static struct nvme_fc_port_template qla_nvme_fc_transport = {
.fcp_io = qla_nvme_post_cmd,
.fcp_abort = qla_nvme_fcp_abort,
.map_queues = qla_nvme_map_queues,
.max_hw_queues = 8,
.max_hw_queues = DEF_NVME_HW_QUEUES,
.max_sgl_segments = 1024,
.max_dif_sgl_segments = 64,
.dma_boundary = 0xFFFFFFFF,
@ -779,10 +779,22 @@ int qla_nvme_register_hba(struct scsi_qla_host *vha)
WARN_ON(vha->nvme_local_port);
if (ql2xnvme_queues < MIN_NVME_HW_QUEUES || ql2xnvme_queues > MAX_NVME_HW_QUEUES) {
ql_log(ql_log_warn, vha, 0xfffd,
"ql2xnvme_queues=%d is out of range(MIN:%d - MAX:%d). Resetting ql2xnvme_queues to:%d\n",
ql2xnvme_queues, MIN_NVME_HW_QUEUES, MAX_NVME_HW_QUEUES,
DEF_NVME_HW_QUEUES);
ql2xnvme_queues = DEF_NVME_HW_QUEUES;
}
qla_nvme_fc_transport.max_hw_queues =
min((uint8_t)(qla_nvme_fc_transport.max_hw_queues),
min((uint8_t)(ql2xnvme_queues),
(uint8_t)(ha->max_qpairs ? ha->max_qpairs : 1));
ql_log(ql_log_info, vha, 0xfffb,
"Number of NVME queues used for this port: %d\n",
qla_nvme_fc_transport.max_hw_queues);
pinfo.node_name = wwn_to_u64(vha->node_name);
pinfo.port_name = wwn_to_u64(vha->port_name);
pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR;

4
drivers/scsi/qla2xxx/qla_nvme.h
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@ -13,6 +13,10 @@
#include "qla_def.h"
#include "qla_dsd.h"
#define MIN_NVME_HW_QUEUES 1
#define MAX_NVME_HW_QUEUES 128
#define DEF_NVME_HW_QUEUES 8
#define NVME_ATIO_CMD_OFF 32
#define NVME_FIRST_PACKET_CMDLEN (64 - NVME_ATIO_CMD_OFF)
#define Q2T_NVME_NUM_TAGS 2048

8
drivers/scsi/qla2xxx/qla_os.c
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@ -338,6 +338,14 @@ static void qla2x00_free_device(scsi_qla_host_t *);
static int qla2xxx_map_queues(struct Scsi_Host *shost);
static void qla2x00_destroy_deferred_work(struct qla_hw_data *);
u32 ql2xnvme_queues = DEF_NVME_HW_QUEUES;
module_param(ql2xnvme_queues, uint, S_IRUGO);
MODULE_PARM_DESC(ql2xnvme_queues,
"Number of NVMe Queues that can be configured.\n"
"Final value will be min(ql2xnvme_queues, num_cpus,num_chip_queues)\n"
"1 - Minimum number of queues supported\n"
"128 - Maximum number of queues supported\n"
"8 - Default value");
static struct scsi_transport_template *qla2xxx_transport_template = NULL;
struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;