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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: pbonzini@redhat.com, jsmart2021@gmail.com, mkumar@redhat.com,
	emilne@redhat.com,
	Gaurav Srivastava <gaurav.srivastava@broadcom.com>
Subject: [PATCH v3 05/19] lpfc: vmid: API to check if VMID is enabled.
Date: Tue,  3 Nov 2020 12:48:09 +0530	[thread overview]
Message-ID: <1604387903-20006-6-git-send-email-muneendra.kumar@broadcom.com> (raw)
In-Reply-To: <1604387903-20006-1-git-send-email-muneendra.kumar@broadcom.com>


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

This API will determine if VMID is enabled by the user or not.

Signed-off-by: Gaurav Srivastava  <gaurav.srivastava@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>

---
v3:
No change

v2:
Ported the patch on top of 5.10/scsi-queue
---
 drivers/scsi/lpfc/lpfc.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 8f0062d2b891..a62e985aa180 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -1506,3 +1506,27 @@ static const char *routine(enum enum_name table_key)			\
 	}								\
 	return name;							\
 }
+
+/**
+ * lpfc_is_vmid_enabled - returns if VMID is enabled for either switch types
+ * @phba: Pointer to HBA context object.
+ *
+ * Relationship between the enable, target support and if vmid tag is required
+ * for the particular combination
+ * ---------------------------------------------------
+ * Switch    Enable Flag  Target Support  VMID Needed
+ * ---------------------------------------------------
+ * App Id     0              NA              N
+ * App Id     1               0              N
+ * App Id     1               1              Y
+ * Pr Tag     0              NA              N
+ * Pr Tag     1               0              N
+ * Pr Tag     1               1              Y
+ * Pr Tag     2               *              Y
+ ---------------------------------------------------
+ *
+ **/
+static inline int lpfc_is_vmid_enabled(struct lpfc_hba *phba)
+{
+	return phba->cfg_vmid_app_header || phba->cfg_vmid_priority_tagging;
+}
-- 
2.26.2


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  parent reply	other threads:[~2020-11-03 14:12 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-03  7:18 [PATCH v3 00/19] blkcg:Support to track FC storage blk io traffic Muneendra
2020-11-03  7:18 ` [PATCH v3 01/19] cgroup: Added cgroup_get_from_kernfs_id Muneendra
2020-11-09 13:49   ` Tejun Heo
2020-11-03  7:18 ` [PATCH v3 02/19] blkcg: Added a app identifier support for blkcg Muneendra
2020-11-03  7:18 ` [PATCH v3 03/19] nvme: Added a newsysfs attribute appid_store Muneendra
2020-11-03  7:18 ` [PATCH v3 04/19] lpfc: vmid: Add the datastructure for supporting VMID in lpfc Muneendra
2020-11-03  7:18 ` Muneendra [this message]
2020-11-03  7:18 ` [PATCH v3 06/19] lpfc: vmid: Supplementary data structures for vmid Muneendra
2020-11-03  7:18 ` [PATCH v3 07/19] lpfc: vmid: Forward declarations for APIs Muneendra
2020-11-03  7:18 ` [PATCH v3 08/19] lpfc: vmid: Add support for vmid in mailbox command Muneendra
2020-11-03  7:18 ` [PATCH v3 09/19] lpfc: vmid: VMID params initialization Muneendra
2020-11-03  7:18 ` [PATCH v3 10/19] lpfc: vmid: vmid resource allocation Muneendra
2020-11-03  7:18 ` [PATCH v3 11/19] lpfc: vmid: cleanup vmid resources Muneendra
2020-11-03  7:18 ` [PATCH v3 12/19] lpfc: vmid: Implements ELS commands for appid patch Muneendra
2020-11-03  7:18 ` [PATCH v3 13/19] lpfc: vmid: Functions to manage vmids Muneendra
2020-11-03  7:18 ` [PATCH v3 14/19] lpfc: vmid: Implements CT commands for appid Muneendra
2020-11-03  7:18 ` [PATCH v3 15/19] lpfc: vmid: Appends the vmid in the wqe before sending request Muneendra
2020-11-03  7:18 ` [PATCH v3 16/19] lpfc: vmid: Timeout implementation for vmid Muneendra
2020-11-03  7:18 ` [PATCH v3 17/19] lpfc: vmid: Adding qfpa and vmid timeout check in worker thread Muneendra
2020-11-03  7:18 ` [PATCH v3 18/19] lpfc: vmid: Introducing vmid in io path Muneendra
2020-11-03  7:18 ` [PATCH v3 19/19] scsi: Made changes in Kconfig to select BLK_CGROUP_FC_APPID Muneendra
2020-11-03 18:07   ` kernel test robot
2020-11-03 21:19   ` kernel test robot
2020-11-04  0:55   ` kernel test robot

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