From: Bhanu Prakash Gollapudi <bprakash@xxxxxxxxxxxx>
While we wait for GPN_FT response, if the ctlr link goes down, the stack
generates a completion for GPN_FT with error FC_EXCH_CLOSED, and reports a
discovery error. Discovery is not retried in this case, and rightly so.
However, the 'pending' flag stays set, which does not allow subsequent
discovery to succeed as GPN_FT will never be issued. Fix it by clearing the
pending flag when the discovery fails due to GPN_FT failure.
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@xxxxxxxxxxxx>
Signed-off-by: Robert Love <robert.w.love@xxxxxxxxx>
---
drivers/scsi/libfc/fc_disc.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c
index 1d1b0c9..8e561e6 100644
--- a/drivers/scsi/libfc/fc_disc.c
+++ b/drivers/scsi/libfc/fc_disc.c
@@ -337,6 +337,13 @@ static void fc_disc_error(struct fc_disc *disc, struct fc_frame *fp)
schedule_delayed_work(&disc->disc_work, delay);
} else
fc_disc_done(disc, DISC_EV_FAILED);
+ } else if (PTR_ERR(fp) == -FC_EX_CLOSED) {
+ /*
+ * if discovery fails due to lport reset, clear
+ * pending flag so that subsequent discovery can
+ * continue
+ */
+ disc->pending = 0;
}
}
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