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authorSomnath Kotur <somnath.kotur@emulex.com>2011-10-27 07:14:05 +0000
committerDavid S. Miller <davem@davemloft.net>2011-10-27 23:16:20 -0400
commite3a7ae2c1819aa210a38f80f6bf13322652c8211 (patch)
tree75cbeb4866aee1e1d8c75148200795a17c1f657a
parent106df1e3594c710c74348883a4942f65651781ff (diff)
downloadlinux-e3a7ae2c1819aa210a38f80f6bf13322652c8211.tar.gz
be2net: Changing MAC Address of a VF was broken.
Allow for MAC Address change of VF(SR-IOV case) on the fly- First add and then
delete MAC Address to allow for 'out of pool' errors.
When MAC Addr configured from a VM, the MAC on the NIC will aleady have
the supplied MAC,so just copy the supplied MAC to the netdev structure
before returning success to the stack

Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/emulex/benet/be_cmds.c4
-rw-r--r--drivers/net/ethernet/emulex/benet/be_main.c28
2 files changed, 19 insertions, 13 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 83b8a46cdf41..824b8e6021f6 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -688,6 +688,10 @@ int be_cmd_pmac_add(struct be_adapter *adapter, u8 *mac_addr,
 
 err:
 	spin_unlock_bh(&adapter->mcc_lock);
+
+	 if (status == MCC_STATUS_UNAUTHORIZED_REQUEST)
+		status = -EPERM;
+
 	return status;
 }
 
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index d6a232a300ad..21804972fa2f 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -229,27 +229,29 @@ static int be_mac_addr_set(struct net_device *netdev, void *p)
 	struct be_adapter *adapter = netdev_priv(netdev);
 	struct sockaddr *addr = p;
 	int status = 0;
+	u8 current_mac[ETH_ALEN];
+	u32 pmac_id = adapter->pmac_id;
 
 	if (!is_valid_ether_addr(addr->sa_data))
 		return -EADDRNOTAVAIL;
 
-	/* MAC addr configuration will be done in hardware for VFs
-	 * by their corresponding PFs. Just copy to netdev addr here
-	 */
-	if (!be_physfn(adapter))
-		goto netdev_addr;
-
-	status = be_cmd_pmac_del(adapter, adapter->if_handle,
-				adapter->pmac_id, 0);
+	status = be_cmd_mac_addr_query(adapter, current_mac,
+			MAC_ADDRESS_TYPE_NETWORK, false, adapter->if_handle);
 	if (status)
-		return status;
+		goto err;
 
-	status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
+	if (memcmp(addr->sa_data, current_mac, ETH_ALEN)) {
+		status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
 				adapter->if_handle, &adapter->pmac_id, 0);
-netdev_addr:
-	if (!status)
-		memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+		if (status)
+			goto err;
 
+		be_cmd_pmac_del(adapter, adapter->if_handle, pmac_id, 0);
+	}
+	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+	return 0;
+err:
+	dev_err(&adapter->pdev->dev, "MAC %pM set Failed\n", addr->sa_data);
 	return status;
 }