| Message ID | 20230523183206.7728-4-justintee8345@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | lpfc: Update lpfc to revision 14.2.0.13 | expand |
On Tue, 2023-05-23 at 11:32 -0700, Justin Tee wrote: > Pre-existing device loss recovery logic via the > NLP_IN_RECOV_POST_DEV_LOSS > flag only handled Fabric Port Login, Fabric Controller, Management, > and > Name Server addresses. > > Fabric domain controllers fall under the same category for usage of > the > NLP_IN_RECOV_POST_DEV_LOSS flag. Add a default case statement to > mark > an ndlp for device loss recovery. > > Signed-off-by: Justin Tee <justin.tee@broadcom.com> This patch fixed a customer issue for us. Acked-by: Martin Wilck <mwilck@suse.com> > --- > drivers/scsi/lpfc/lpfc_hbadisc.c | 19 ++++++++++++++----- > 1 file changed, 14 insertions(+), 5 deletions(-) > > diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c > b/drivers/scsi/lpfc/lpfc_hbadisc.c > index f99b5c206cdb..a5c69d4bf2e0 100644 > --- a/drivers/scsi/lpfc/lpfc_hbadisc.c > +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c > @@ -458,11 +458,9 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist > *ndlp) > if (ndlp->nlp_type & NLP_FABRIC) { > spin_lock_irqsave(&ndlp->lock, iflags); > > - /* In massive vport configuration settings or when > the FLOGI > - * completes with a sequence timeout, it's possible > - * dev_loss_tmo fired during node recovery. The > driver has to > - * account for this race to allow for recovery and > keepThis patch fixed a customer issue for us. Acked-by: Martin Wilck <mwilck@suse.com> > - * the reference counting correct. > + /* The driver has to account for a race between any > fabric > + * node that's in recovery when dev_loss_tmo expires. > When this > + * happens, the driver has to allow node recovery. > */ > switch (ndlp->nlp_DID) { > case Fabric_DID: > @@ -489,6 +487,17 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist > *ndlp) > ndlp->nlp_state <= > NLP_STE_REG_LOGIN_ISSUE) > recovering = true; > break; > + default: > + /* Ensure the nlp_DID at least has the > correct prefix. > + * The fabric domain controller's last three > nibbles > + * vary so we handle it in the default case. > + */ > + if (ndlp->nlp_DID & Fabric_DID_MASK) { > + if (ndlp->nlp_state >= > NLP_STE_PLOGI_ISSUE && > + ndlp->nlp_state <= > NLP_STE_REG_LOGIN_ISSUE) > + recovering = true; > + } > + break; > } > spin_unlock_irqrestore(&ndlp->lock, iflags); >
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index f99b5c206cdb..a5c69d4bf2e0 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -458,11 +458,9 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) if (ndlp->nlp_type & NLP_FABRIC) { spin_lock_irqsave(&ndlp->lock, iflags); - /* In massive vport configuration settings or when the FLOGI - * completes with a sequence timeout, it's possible - * dev_loss_tmo fired during node recovery. The driver has to - * account for this race to allow for recovery and keep - * the reference counting correct. + /* The driver has to account for a race between any fabric + * node that's in recovery when dev_loss_tmo expires. When this + * happens, the driver has to allow node recovery. */ switch (ndlp->nlp_DID) { case Fabric_DID: @@ -489,6 +487,17 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) recovering = true; break; + default: + /* Ensure the nlp_DID at least has the correct prefix. + * The fabric domain controller's last three nibbles + * vary so we handle it in the default case. + */ + if (ndlp->nlp_DID & Fabric_DID_MASK) { + if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && + ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) + recovering = true; + } + break; } spin_unlock_irqrestore(&ndlp->lock, iflags);
Pre-existing device loss recovery logic via the NLP_IN_RECOV_POST_DEV_LOSS flag only handled Fabric Port Login, Fabric Controller, Management, and Name Server addresses. Fabric domain controllers fall under the same category for usage of the NLP_IN_RECOV_POST_DEV_LOSS flag. Add a default case statement to mark an ndlp for device loss recovery. Signed-off-by: Justin Tee <justin.tee@broadcom.com> --- drivers/scsi/lpfc/lpfc_hbadisc.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-)