diff options
| 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_attr.c | |
| parent | ef47575fd982c7ed1993fbe104909722afa1994b (diff) | |
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_attr.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_attr.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 9b982cc270d9..ea6de542d42a 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -1120,12 +1120,22 @@ lpfc_link_state_show(struct device *dev, struct device_attribute *attr, len += scnprintf(buf + len, PAGE_SIZE-len, " Private Loop\n"); } else { - if (vport->fc_flag & FC_FABRIC) - len += scnprintf(buf + len, PAGE_SIZE-len, - " Fabric\n"); - else + if (vport->fc_flag & FC_FABRIC) { + if (phba->sli_rev == LPFC_SLI_REV4 && + vport->port_type == LPFC_PHYSICAL_PORT && + phba->sli4_hba.fawwpn_flag & + LPFC_FAWWPN_FABRIC) + len += scnprintf(buf + len, + PAGE_SIZE - len, + " Fabric FA-PWWN\n"); + else + len += scnprintf(buf + len, + PAGE_SIZE - len, + " Fabric\n"); + } else { len += scnprintf(buf + len, PAGE_SIZE-len, " Point-2-Point\n"); + } } } |