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| author |   James Smart <jsmart2021@gmail.com> | 2022-04-12 15:20:04 -0700 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2022-04-18 22:48:47 -0400 |
| commit | 1b6f71f7fcb685970aa1c4ecca3dd60ed37a32ea (patch) | |
| tree | bc22a12bdb0b681f0f76d147b20614579d6c7739 /drivers/scsi/lpfc/lpfc_hw4.h | |
| parent | scsi: lpfc: Refactor cleanup of mailbox commands (diff) | |
| download | wireguard-linux-1b6f71f7fcb685970aa1c4ecca3dd60ed37a32ea.tar.xz wireguard-linux-1b6f71f7fcb685970aa1c4ecca3dd60ed37a32ea.zip | |
scsi: lpfc: Change FA-PWWN detection methodology
Do not rely on vendor version field of the CSPs to determine if we are in a
FA-PWWN environment. Instead, use the following procedure:
First, during HBA initialization, driver does a READ_CONFIG to determine if
FA-PWWN is configured on the HBA. A LPFC_FAWWPN_CONFIG hba_flag is set
accordingly.
Next, when the link comes up before the driver gets a link up event, the
firmware logs into the fabric with FA-PWWN. If the fabric port does not
support FA-PWWN, the driver will get a Misconfigured FA-WWN async event
before the link up. A LPFC_FAWWPN_FABRIC hba_flag will be set accordingly.
Finally, if the fabric supports FA-PWWN, the firmware will replace its CSPs
WWN with the Fabric Assigned ones. Then after link up, the driver will
retrieve the Fabric Assigned WWN when it does a READ_SPARAM mbox command.
Link: https://lore.kernel.org/r/20220412222008.126521-23-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_hw4.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_hw4.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h index 02e230ed6280..6d20c97762e9 100644 --- a/drivers/scsi/lpfc/lpfc_hw4.h +++ b/drivers/scsi/lpfc/lpfc_hw4.h @@ -2893,6 +2893,9 @@ struct lpfc_mbx_read_config { #define lpfc_mbx_rd_conf_extnts_inuse_SHIFT 31 #define lpfc_mbx_rd_conf_extnts_inuse_MASK 0x00000001 #define lpfc_mbx_rd_conf_extnts_inuse_WORD word1 +#define lpfc_mbx_rd_conf_fawwpn_SHIFT 30 +#define lpfc_mbx_rd_conf_fawwpn_MASK 0x00000001 +#define lpfc_mbx_rd_conf_fawwpn_WORD word1 #define lpfc_mbx_rd_conf_wcs_SHIFT 28 /* warning signaling */ #define lpfc_mbx_rd_conf_wcs_MASK 0x00000001 #define lpfc_mbx_rd_conf_wcs_WORD word1 |