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From: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
To: dev@dpdk.org
Cc: kaara.satwik@chelsio.com, stable@dpdk.org
Subject: [dpdk-dev] [PATCH] net/cxgbe: fix duplicate MAC addresses in MPS TCAM
Date: Tue,  1 Sep 2020 22:48:49 +0530	[thread overview]
Message-ID: <1598980729-19850-1-git-send-email-rahul.lakkireddy@chelsio.com> (raw)

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. Othewise, driver misses the
mask comparison and ends up inserting duplicate entries in the

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>
 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

             reply	other threads:[~2020-09-01 17:33 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-01 17:18 Rahul Lakkireddy [this message]
2020-09-11 23:47 ` [dpdk-dev] [PATCH v2] " Rahul Lakkireddy
2020-09-14 17:46   ` [dpdk-dev] [dpdk-stable] " Ferruh Yigit

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