[RFC v2 09/18] lpfc: vmid: VMID params initialization

From: Muneendra <muneendra.kumar@broadcom.com>
To: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org,
	tj@kernel.org, linux-nvme@lists.infradead.org
Cc: jsmart2021@gmail.com, emilne@redhat.com, mkumar@redhat.com,
	pbonzini@redhat.com,
	Gaurav Srivastava <gaurav.srivastava@broadcom.com>
Subject: [RFC v2 09/18] lpfc: vmid: VMID params initialization
Date: Mon, 19 Oct 2020 13:13:04 +0530	[thread overview]
Message-ID: <1603093393-12875-10-git-send-email-muneendra.kumar@broadcom.com> (raw)
In-Reply-To: <1603093393-12875-1-git-send-email-muneendra.kumar@broadcom.com>

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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>

---
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);
-- 
2.26.2


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