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authorJames Smart <jsmart2021@gmail.com>2017-11-21 01:00:40 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2017-12-05 02:32:54 +0100
commitadd9d6be3d650bf897b1c3feadabcf42e216acdb (patch)
treeac974757bc9682ef557f4d957fc8d1fd368f671a /drivers/scsi/lpfc/lpfc_disc.h
parentscsi: lpfc: correct port registrations with nvme_fc (diff)
downloadlinux-add9d6be3d650bf897b1c3feadabcf42e216acdb.tar.xz
linux-add9d6be3d650bf897b1c3feadabcf42e216acdb.zip
scsi: lpfc: Correct driver deregistrations with host nvme transport
The driver's interaction with the host nvme transport has been incorrect for a while. The driver did not wait for the unregister callbacks (waited only 5 jiffies). Thus the driver may remove objects that may be referenced by subsequent abort commands from the transport, and the actual unregister callback was effectively a noop. This was especially problematic if the driver was unloaded. The driver now waits for the unregister callbacks, as it should, before continuing with teardown. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_disc.h')
-rw-r--r--drivers/scsi/lpfc/lpfc_disc.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_disc.h b/drivers/scsi/lpfc/lpfc_disc.h
index f9a566eaef04..5a7547f9d8d8 100644
--- a/drivers/scsi/lpfc/lpfc_disc.h
+++ b/drivers/scsi/lpfc/lpfc_disc.h
@@ -134,6 +134,8 @@ struct lpfc_nodelist {
struct lpfc_scsicmd_bkt *lat_data; /* Latency data */
uint32_t fc4_prli_sent;
uint32_t upcall_flags;
+#define NLP_WAIT_FOR_UNREG 0x1
+
uint32_t nvme_fb_size; /* NVME target's supported byte cnt */
#define NVME_FB_BIT_SHIFT 9 /* PRLI Rsp first burst in 512B units. */
};