From 683df5fc3ec5b9bd2596f84d120c4fda8151fd09 Mon Sep 17 00:00:00 2001 From: Justin Tee Date: Thu, 6 Nov 2025 14:46:37 -0800 Subject: [PATCH] scsi: lpfc: Allow support for BB credit recovery in point-to-point topology 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 Link: https://patch.msgid.link/20251106224639.139176-9-justintee8345@gmail.com Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_els.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 0045c1e296197..b066ba83ce87b 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -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. -- 2.47.3