First Burst support was not properly indicated in NVMe PRLI. Correct the bit position and the logic to check and set first burst support.
Signed-off-by: Dick Kennedy <[email protected]> Signed-off-by: James Smart <[email protected]> --- drivers/scsi/lpfc/lpfc_nportdisc.c | 15 ++++++++++++++- drivers/scsi/lpfc/lpfc_nvme.h | 2 ++ 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index b63179d895e2..022060636ae1 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -1998,8 +1998,14 @@ lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, ndlp->nlp_type |= NLP_NVME_TARGET; if (bf_get_be32(prli_disc, nvpr)) ndlp->nlp_type |= NLP_NVME_DISCOVERY; + + /* + * If prli_fba is set, the Target supports FirstBurst. + * If prli_fb_sz is 0, the FirstBurst size is unlimited, + * otherwise it defines the actual size supported by + * the NVME Target. + */ if ((bf_get_be32(prli_fba, nvpr) == 1) && - (bf_get_be32(prli_fb_sz, nvpr) > 0) && (phba->cfg_nvme_enable_fb) && (!phba->nvmet_support)) { /* Both sides support FB. The target's first @@ -2008,6 +2014,13 @@ lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, ndlp->nlp_flag |= NLP_FIRSTBURST; ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, nvpr); + + /* Expressed in units of 512 bytes */ + if (ndlp->nvme_fb_size) + ndlp->nvme_fb_size <<= + LPFC_NVME_FB_SHIFT; + else + ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; } } diff --git a/drivers/scsi/lpfc/lpfc_nvme.h b/drivers/scsi/lpfc/lpfc_nvme.h index e79f8f75758c..48b0229ebc99 100644 --- a/drivers/scsi/lpfc/lpfc_nvme.h +++ b/drivers/scsi/lpfc/lpfc_nvme.h @@ -27,6 +27,8 @@ #define LPFC_NVME_WAIT_TMO 10 #define LPFC_NVME_EXPEDITE_XRICNT 8 +#define LPFC_NVME_FB_SHIFT 9 +#define LPFC_NVME_MAX_FB (1 << 20) /* 1M */ struct lpfc_nvme_qhandle { uint32_t index; /* WQ index to use */ -- 2.13.1
