bnx2x: Fix PF-VF communication over multi-cos queues.

PF driver doesn't enable tx-switching for all cos queues/clients,
which causes packets drop from PF to VF. Fix this by enabling
tx-switching on all cos queues/clients.
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c

@@ -2397,10 +2397,15 @@ static int bnx2x_set_pf_tx_switching(struct bnx2x *bp, bool enable)
 	/* send the ramrod on all the queues of the PF */
 	for_each_eth_queue(bp, i) {
 		struct bnx2x_fastpath *fp = &bp->fp[i];
+		int tx_idx;
 
 		/* Set the appropriate Queue object */
 		q_params.q_obj = &bnx2x_sp_obj(bp, fp).q_obj;
 
+		for (tx_idx = FIRST_TX_COS_INDEX;
+		     tx_idx < fp->max_cos; tx_idx++) {
+			q_params.params.update.cid_index = tx_idx;
+
 			/* Update the Queue state */
 			rc = bnx2x_queue_state_change(bp, &q_params);
 			if (rc) {
@@ -2408,6 +2413,7 @@ static int bnx2x_set_pf_tx_switching(struct bnx2x *bp, bool enable)
 				return rc;
 			}
 		}
+	}
 
 	DP(BNX2X_MSG_IOV, "%s Tx Switching\n", enable ? "Enabled" : "Disabled");
 	return 0;