[dpdk-dev] [PATCH] i40e: fix i40e_validate_mac_addr to permit multicast addresses

[David Harton <dharton@cisco.com>]

The i40e maintains a single MAC filter table for both
unicast and multicast addresses.  The i40e_validate_mac_addr
function was preventing multicast addresses from being added
to the table via i40evf_add_mac_addr.  Fixed the issue by
removing the multicast address check in i40e_validate_mac_addr.

Signed-off-by: David Harton <dharton@cisco.com>
---
 drivers/net/i40e/base/i40e_common.c | 12 +++++-------
 drivers/net/i40e/i40e_ethdev.c      |  3 ++-
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/net/i40e/base/i40e_common.c b/drivers/net/i40e/base/i40e_common.c
index 900d379..9779854 100644
--- a/drivers/net/i40e/base/i40e_common.c
+++ b/drivers/net/i40e/base/i40e_common.c
@@ -969,10 +969,10 @@ struct i40e_rx_ptype_decoded i40e_ptype_lookup[] = {
 
 
 /**
- * i40e_validate_mac_addr - Validate unicast MAC address
+ * i40e_validate_mac_addr - Validate MAC address
  * @mac_addr: pointer to MAC address
  *
- * Tests a MAC address to ensure it is a valid Individual Address
+ * Tests a MAC address to ensure it is a valid Address
  **/
 enum i40e_status_code i40e_validate_mac_addr(u8 *mac_addr)
 {
@@ -980,13 +980,11 @@ enum i40e_status_code i40e_validate_mac_addr(u8 *mac_addr)
 
 	DEBUGFUNC("i40e_validate_mac_addr");
 
-	/* Broadcast addresses ARE multicast addresses
-	 * Make sure it is not a multicast address
+	/*
 	 * Reject the zero address
 	 */
-	if (I40E_IS_MULTICAST(mac_addr) ||
-	    (mac_addr[0] == 0 && mac_addr[1] == 0 && mac_addr[2] == 0 &&
-	      mac_addr[3] == 0 && mac_addr[4] == 0 && mac_addr[5] == 0))
+	if (mac_addr[0] == 0 && mac_addr[1] == 0 && mac_addr[2] == 0 &&
+	    mac_addr[3] == 0 && mac_addr[4] == 0 && mac_addr[5] == 0)
 		status = I40E_ERR_INVALID_MAC_ADDR;
 
 	return status;
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 5f26e24..00b6082 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -1199,7 +1199,8 @@ eth_i40e_dev_init(struct rte_eth_dev *dev)
 
 	/* Get and check the mac address */
 	i40e_get_mac_addr(hw, hw->mac.addr);
-	if (i40e_validate_mac_addr(hw->mac.addr) != I40E_SUCCESS) {
+	if (i40e_validate_mac_addr(hw->mac.addr) != I40E_SUCCESS ||
+	    I40E_IS_MULTICAST(hw->mac.addr)) {
 		PMD_INIT_LOG(ERR, "mac address is not valid");
 		ret = -EIO;
 		goto err_get_mac_addr;
-- 
2.10.3.dirty