[PATCH v5 01/21] ibmvfc: add vhost fields and defaults for MQ enablement
From: Tyrel Datwyler <tyreld@linux.ibm.com>
Date: 2021-01-14 20:33:01
Also in:
linux-scsi, lkml
Subsystem:
ibm power virtual fc device drivers, linux for powerpc (32-bit and 64-bit), scsi subsystem, the rest · Maintainers:
Tyrel Datwyler, Madhavan Srinivasan, "James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
Introduce several new vhost fields for managing MQ state of the adapter as well as initial defaults for MQ enablement. Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> Reviewed-by: Brian King <redacted> --- drivers/scsi/ibmvscsi/ibmvfc.c | 8 ++++++++ drivers/scsi/ibmvscsi/ibmvfc.h | 9 +++++++++ 2 files changed, 17 insertions(+)
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index ba95438a8912..9200fe49c57e 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c@@ -3302,6 +3302,7 @@ static struct scsi_host_template driver_template = { .max_sectors = IBMVFC_MAX_SECTORS, .shost_attrs = ibmvfc_attrs, .track_queue_depth = 1, + .host_tagset = 1, }; /**
@@ -5290,6 +5291,7 @@ static int ibmvfc_probe(struct vio_dev *vdev, const struct vio_device_id *id) shost->max_sectors = IBMVFC_MAX_SECTORS; shost->max_cmd_len = IBMVFC_MAX_CDB_LEN; shost->unique_id = shost->host_no; + shost->nr_hw_queues = IBMVFC_MQ ? IBMVFC_SCSI_HW_QUEUES : 1; vhost = shost_priv(shost); INIT_LIST_HEAD(&vhost->targets);
@@ -5300,6 +5302,12 @@ static int ibmvfc_probe(struct vio_dev *vdev, const struct vio_device_id *id) vhost->partition_number = -1; vhost->log_level = log_level; vhost->task_set = 1; + + vhost->mq_enabled = IBMVFC_MQ; + vhost->client_scsi_channels = IBMVFC_SCSI_CHANNELS; + vhost->using_channels = 0; + vhost->do_enquiry = 1; + strcpy(vhost->partition_name, "UNKNOWN"); init_waitqueue_head(&vhost->work_wait_q); init_waitqueue_head(&vhost->init_wait_q);
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h
index 632e977449c5..dd6d89292867 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.h
+++ b/drivers/scsi/ibmvscsi/ibmvfc.h@@ -41,6 +41,11 @@ #define IBMVFC_DEFAULT_LOG_LEVEL 2 #define IBMVFC_MAX_CDB_LEN 16 #define IBMVFC_CLS3_ERROR 0 +#define IBMVFC_MQ 0 +#define IBMVFC_SCSI_CHANNELS 0 +#define IBMVFC_SCSI_HW_QUEUES 1 +#define IBMVFC_MIG_NO_SUB_TO_CRQ 0 +#define IBMVFC_MIG_NO_N_TO_M 0 /* * Ensure we have resources for ERP and initialization:
@@ -840,6 +845,10 @@ struct ibmvfc_host { int delay_init; int scan_complete; int logged_in; + int mq_enabled; + int using_channels; + int do_enquiry; + int client_scsi_channels; int aborting_passthru; int events_to_log; #define IBMVFC_AE_LINKUP 0x0001
--
2.27.0