[dpdk-dev] [PATCH v2] net/cxgbe: fix duplicate MAC addresses in MPS TCAM

[Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>]

From: Karra Satwik <kaara.satwik@chelsio.com>

During MAC address insertion to MPS TCAM, add a default mask when
the mask is not explicitly specified. Otherwise, driver misses the
mask comparison and ends up inserting duplicate entries in the
MPS TCAM.

Fixes: 6fda3f0ddda9 ("net/cxgbe: add API to program hardware MPS table")
Cc: stable@dpdk.org

Signed-off-by: Karra Satwik <kaara.satwik@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
---
v2:
- Fix spelling Othewise to Otherwise in commit message.

 drivers/net/cxgbe/mps_tcam.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/cxgbe/mps_tcam.c b/drivers/net/cxgbe/mps_tcam.c
index 5302d1343..6e5fae992 100644
--- a/drivers/net/cxgbe/mps_tcam.c
+++ b/drivers/net/cxgbe/mps_tcam.c
@@ -140,6 +140,7 @@ int cxgbe_mpstcam_modify(struct port_info *pi, int idx, const u8 *addr)
 	/* idx can now be different from what user provided */
 	entry = &mpstcam->entry[idx];
 	memcpy(entry->eth_addr, addr, RTE_ETHER_ADDR_LEN);
+	memset(entry->mask, ~0, RTE_ETHER_ADDR_LEN);
 	/* NOTE: we have considered the case that idx returned by t4_change_mac
 	 * will be different from the user provided value only if user
 	 * provided value is -1
-- 
2.24.0