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scsi: lpfc: Allow support for BB credit recovery in point-to-point topology

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Currently, BB credit recovery is excluded to fabric topology mode.  This
patch allows setting of BB_SC_N in PLOGIs and PLOGI_ACCs when in
point-to-point mode so that BB credit recovery can operate in
point-to-point topology as well.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://patch.msgid.link/20251106224639.139176-9-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Justin Tee
2025-11-06 14:46:37 -08:00
committed by Martin K. Petersen
parent 07caedc6a3
commit 683df5fc3e
1 changed files with 4 additions and 2 deletions
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6
drivers/scsi/lpfc/lpfc_els.c
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@@ -2279,7 +2279,8 @@ lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
sp->cmn.valid_vendor_ver_level = 0;
memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
sp->cmn.bbRcvSizeMsb &= 0xF;
if (!test_bit(FC_PT2PT, &vport->fc_flag))
sp->cmn.bbRcvSizeMsb &= 0xF;
/* Check if the destination port supports VMID */
ndlp->vmid_support = 0;
@@ -5670,7 +5671,8 @@ lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
sp->cmn.valid_vendor_ver_level = 0;
memset(sp->un.vendorVersion, 0,
sizeof(sp->un.vendorVersion));
sp->cmn.bbRcvSizeMsb &= 0xF;
if (!test_bit(FC_PT2PT, &vport->fc_flag))
sp->cmn.bbRcvSizeMsb &= 0xF;
/* If our firmware supports this feature, convey that
* info to the target using the vendor specific field.