Re: [PATCH v4 09/19] lpfc: vmid: VMID params initialization

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On 11/9/20 5:23 AM, Muneendra wrote:
From: Gaurav Srivastava <gaurav.srivastava@xxxxxxxxxxxx>

This patch initializes the VMID parameters like the type of vmid, max
number of vmids supported and timeout value for the vmid registration
based on the user input.

Signed-off-by: Gaurav Srivastava  <gaurav.srivastava@xxxxxxxxxxxx>
Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>

---
v4:
No change

v3:
No change

v2:
Ported the patch on top of 5.10/scsi-queue
---
  drivers/scsi/lpfc/lpfc_attr.c | 47 +++++++++++++++++++++++++++++++++++
  1 file changed, 47 insertions(+)

diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index e94eac194676..e73997bce65c 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -6138,6 +6138,44 @@ LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery");
   */
  LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push");
+/*
+ * lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if
+ * either vmid_app_header or vmid_priority_tagging is enabled.
+ *       4 - 255  = vmid support enabled for 4-255 VMs
+ *       Value range is [4,255].
+ */
+LPFC_ATTR_RW(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID,
+	     "Maximum number of VMs supported");
+
+/*
+ * lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours
+ *       0  = Timeout is disabled
+ * Value range is [0,24].
+ */
+LPFC_ATTR_RW(vmid_inactivity_timeout, 4, 0, 24,
+	     "Inactivity timeout in hours");
+
+/*
+ * lpfc_vmid_app_header: Enable App Header VMID support
+ *       0  = Support is disabled (default)
+ *       1  = Support is enabled
+ * Value range is [0,1].
+ */
+LPFC_ATTR_RW(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE,
+	     LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE,
+	     "Enable App Header VMID support");
+
+/*
+ * lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support
+ *       0  = Support is disabled (default)
+ *       1  = Support is enabled
+ * Value range is [0,1]..
+ */
+LPFC_ATTR_RW(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE,
+	     LPFC_VMID_PRIO_TAG_DISABLE,
+	     LPFC_VMID_PRIO_TAG_ALL_TARGETS,
+	     "Enable Priority Tagging VMID support");
+
  struct device_attribute *lpfc_hba_attrs[] = {
  	&dev_attr_nvme_info,
  	&dev_attr_scsi_stat,
@@ -6255,6 +6293,10 @@ struct device_attribute *lpfc_hba_attrs[] = {
  	&dev_attr_lpfc_ras_fwlog_func,
  	&dev_attr_lpfc_enable_bbcr,
  	&dev_attr_lpfc_enable_dpp,
+	&dev_attr_lpfc_max_vmid,
+	&dev_attr_lpfc_vmid_inactivity_timeout,
+	&dev_attr_lpfc_vmid_app_header,
+	&dev_attr_lpfc_vmid_priority_tagging,
  	NULL,
  };
@@ -7314,6 +7356,11 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
  	lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
lpfc_EnableXLane_init(phba, lpfc_EnableXLane);
+	/* VMID Inits */
+	lpfc_max_vmid_init(phba, lpfc_max_vmid);
+	lpfc_vmid_inactivity_timeout_init(phba, lpfc_vmid_inactivity_timeout);
+	lpfc_vmid_app_header_init(phba, lpfc_vmid_app_header);
+	lpfc_vmid_priority_tagging_init(phba, lpfc_vmid_priority_tagging);
  	if (phba->sli_rev != LPFC_SLI_REV4)
  		phba->cfg_EnableXLane = 0;
  	lpfc_XLanePriority_init(phba, lpfc_XLanePriority);

Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke                Kernel Storage Architect
hare@xxxxxxx                              +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer



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