[RFC v2 05/18] lpfc: vmid: API to check if VMID is enabled.
From: Muneendra <hidden>
Date: 2020-10-19 14:37:02
Also in:
linux-nvme, linux-scsi
Subsystem:
emulex/broadcom lpfc fc/fcoe scsi driver, scsi subsystem, the rest · Maintainers:
Justin Tee, Paul Ely, "James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
From: Gaurav Srivastava <redacted> This API will determine if VMID is enabled by the user or not. Signed-off-by: Gaurav Srivastava <redacted> Signed-off-by: James Smart <redacted> --- 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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