diff options
| author | James Smart <jsmart2021@gmail.com> | 2021-03-01 09:18:15 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-03-04 17:37:05 -0500 |
| commit | debbc1e2b978bbacd629e30d93d8eaba1592c358 (patch) | |
| tree | e4b5327029861a019d239bfb93ef1f451284a24c /drivers/scsi/lpfc/lpfc_nportdisc.c | |
| parent | bb6fd33e3a0cf4325a8114f2f2fece881713973c (diff) | |
scsi: lpfc: Fix pt2pt state transition causing rmmod hang
On a setup with a dual port HBA and both ports direct connected, an rmmod
hangs momentarily when we log an Illegal State Transition. Once it resumes,
a nodelist not empty logic is hit, which forces rmmod to cleanup and exit.
We're missing a state transition case in the discovery engine.
Fix by adding a case for a DEVICE_RM event while in the unmapped state to
avoid illegal state transition log message.
Link: https://lore.kernel.org/r/20210301171821.3427-17-jsmart2021@gmail.com
Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Dick Kennedy <dick.kennedy@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_nportdisc.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_nportdisc.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index 090a4232bfa8..e178ffb4e4eb 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -2486,6 +2486,16 @@ lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, } static uint32_t +lpfc_device_rm_unmap_node(struct lpfc_vport *vport, + struct lpfc_nodelist *ndlp, + void *arg, + uint32_t evt) +{ + lpfc_drop_node(vport, ndlp); + return NLP_STE_FREED_NODE; +} + +static uint32_t lpfc_device_recov_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, @@ -2978,7 +2988,7 @@ static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) lpfc_disc_illegal, /* CMPL_LOGO */ lpfc_disc_illegal, /* CMPL_ADISC */ lpfc_disc_illegal, /* CMPL_REG_LOGIN */ - lpfc_disc_illegal, /* DEVICE_RM */ + lpfc_device_rm_unmap_node, /* DEVICE_RM */ lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ |