[SCSI] bnx2fc: Handle LOGO flooding from the target

Host drops sessions when flood of unsolicited LOGOs are received from the
target. Because of unsufficient PLOGI retries, upon exceeding the retry count
of 3, the target sessions are dropped. Increased the retry count to 255 to
allow sufficient retries in this scenario.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h
index 049ea90..c5af098 100644 (file)
--- a/drivers/scsi/bnx2fc/bnx2fc.h
+++ b/drivers/scsi/bnx2fc/bnx2fc.h
@@ -114,6 +114,8 @@
 #define BNX2FC_HASH_TBL_CHUNK_SIZE     (16 * 1024)
 
 #define BNX2FC_MAX_SEQS                        255
+#define BNX2FC_MAX_RETRY_CNT           3
+#define BNX2FC_MAX_RPORT_RETRY_CNT     255
 
 #define BNX2FC_READ                    (1 << 1)
 #define BNX2FC_WRITE                   (1 << 0)

diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 10cf5d9..bd18ab5 100644 (file)
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -953,8 +953,8 @@ static int bnx2fc_lport_config(struct fc_lport *lport)
 {
        lport->link_up = 0;
        lport->qfull = 0;
-       lport->max_retry_count = 3;
-       lport->max_rport_retry_count = 3;
+       lport->max_retry_count = BNX2FC_MAX_RETRY_CNT;
+       lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT;
        lport->e_d_tov = 2 * 1000;
        lport->r_a_tov = 10 * 1000;