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| author | Dick Kennedy <dick.kennedy@broadcom.com> | 2017-08-23 16:55:37 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-08-24 22:29:38 -0400 |
| commit | 4adc041b4dccbf315297e504457b096757fdb324 (patch) | |
| tree | e54cb83deb13c6c337224874e7abb92e2db97fc3 /drivers/scsi | |
| parent | 8db1c2b3e7fa1b1a75a8dddc77bf516acfc03e8a (diff) | |
| download | linux-4adc041b4dccbf315297e504457b096757fdb324.tar.bz2 | |
scsi: lpfc: Fix duplicate NVME rport entries and namespaces.
After lip, the driver sometimes would have two rports for the same
device, allowing the namespaces to be duplicated by nvme.
In lpfc_plogi_confirm_nport() the driver was not swapping the nrport
maintained by the ndlp's undergoing address swapping. This allowed the
2nd rport to sneak in as it was considered a separate device.
This patch adds the fixes to Swap the nrport in each ndlp and take care
of the reference counts on the ndlps similar to FCP rports.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_els.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 19af0e6e7667..ffbd3eddeabb 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -1527,6 +1527,7 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, uint8_t name[sizeof(struct lpfc_name)]; uint32_t rc, keepDID = 0, keep_nlp_flag = 0; uint16_t keep_nlp_state; + struct lpfc_nvme_rport *keep_nrport = NULL; int put_node; int put_rport; unsigned long *active_rrqs_xri_bitmap = NULL; @@ -1624,6 +1625,10 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, keep_nlp_state = new_ndlp->nlp_state; lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); + /* interchange the nvme remoteport structs */ + keep_nrport = new_ndlp->nrport; + new_ndlp->nrport = ndlp->nrport; + /* Move this back to NPR state */ if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { /* The new_ndlp is replacing ndlp totally, so we need @@ -1646,6 +1651,13 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, } new_ndlp->nlp_type = ndlp->nlp_type; } + + /* Fix up the nvme rport */ + if (ndlp->nrport) { + ndlp->nrport = NULL; + lpfc_nlp_put(ndlp); + } + /* We shall actually free the ndlp with both nlp_DID and * nlp_portname fields equals 0 to avoid any ndlp on the * nodelist never to be used. @@ -1690,6 +1702,14 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, keep_nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_set_state(vport, ndlp, keep_nlp_state); + /* Previous ndlp no longer active with nvme host transport. + * Remove reference from earlier registration unless the + * nvme host took care of it. + */ + if (ndlp->nrport) + lpfc_nlp_put(ndlp); + ndlp->nrport = keep_nrport; + /* Fix up the rport accordingly */ rport = ndlp->rport; if (rport) { |