net/ncsi: Send device address as source address

After receiving device mac address from device, send this as a source address for further commands instead of broadcast address. This will help in multi host NIC cards. Signed-off-by: Vijay Khemka <[email protected]> Signed-off-by: David S. Miller <[email protected]>
ambv · Jan 8, 2020 · 7c7b58d · 7c7b58d
1 parent e102774
commit 7c7b58d
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/net/ncsi/ncsi-cmd.c b/net/ncsi/ncsi-cmd.c
@@ -369,7 +369,15 @@ int ncsi_xmit_cmd(struct ncsi_cmd_arg *nca)
 	eh = skb_push(nr->cmd, sizeof(*eh));
 	eh->h_proto = htons(ETH_P_NCSI);
 	eth_broadcast_addr(eh->h_dest);
-	eth_broadcast_addr(eh->h_source);
+
+	/* If mac address received from device then use it for
+	 * source address as unicast address else use broadcast
+	 * address as source address
+	 */
+	if (nca->ndp->gma_flag == 1)
+		memcpy(eh->h_source, nca->ndp->ndev.dev->dev_addr, ETH_ALEN);
+	else
+		eth_broadcast_addr(eh->h_source);
 
 	/* Start the timer for the request that might not have
 	 * corresponding response. Given NCSI is an internal