[RFC 07/16] lpfc: vmid: VMID params initialization

Muneendra
2020-08-04T09:07:29Z

From: Gaurav Srivastava <gaurav.srivastava@broadcom.com>

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@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Muneendra <muneendra.kumar@broadcom.com>
---
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 a62c60ca6477..e1aa094ff83d 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -6139,6 +6139,44 @@ 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,
@@ -6256,6 +6294,10 @@ 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,
};

@@ -7309,6 +7351,11 @@ 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);
--
2.18.2