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.
Co-developed-by: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>
Signed-off-by: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>
Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>
---
drivers/scsi/lpfc/lpfc_nportdisc.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
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
@@ -2485,6 +2485,16 @@ lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
return ndlp->nlp_state;
}
+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,
@@ -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 */
--
2.26.2
