cnic: Send delete command when shutting down iSCSI ring.

This step is necessary on the bnx2x devices when restarting the iSCSI
ring.  Without it, the firmware can assert and cause bnx2x to report
errors.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c
index d4c6e7fcff53..a2c33289326a 100644
--- a/drivers/net/cnic.c
+++ b/drivers/net/cnic.c
@@ -4183,6 +4183,12 @@ static void cnic_shutdown_rings(struct cnic_dev *dev)
                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_HALT,
                         BNX2X_ISCSI_L2_CID, ETH_CONNECTION_TYPE, &l5_data);
                 msleep(10);
+
+                memset(&l5_data, 0, sizeof(l5_data));
+                cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_CFC_DEL,
+                        BNX2X_ISCSI_L2_CID, ETH_CONNECTION_TYPE |
+                        (1 << SPE_HDR_COMMON_RAMROD_SHIFT), &l5_data);
+                msleep(10);
         }
 }