cxgb4: fix the wrong conversion of Mbps to Kbps

fix the wrong conversion where 1 Mbps was converted to
1024 Kbps.
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c

@@ -2886,13 +2886,13 @@ static int cxgb_set_tx_maxrate(struct net_device *dev, int index, u32 rate)
 	}
 
 	/* Convert from Mbps to Kbps */
-	req_rate = rate << 10;
+	req_rate = rate * 1000;
 
 	/* Max rate is 100 Gbps */
-	if (req_rate >= SCHED_MAX_RATE_KBPS) {
+	if (req_rate > SCHED_MAX_RATE_KBPS) {
 		dev_err(adap->pdev_dev,
 			"Invalid rate %u Mbps, Max rate is %u Mbps\n",
-			rate, SCHED_MAX_RATE_KBPS >> 10);
+			rate, SCHED_MAX_RATE_KBPS / 1000);
 		return -ERANGE;
 	}