net/cxgbe: fix duplicate MAC addresses in MPS TCAM
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Message ID 1598980729-19850-1-git-send-email-rahul.lakkireddy@chelsio.com
State Superseded, archived
Delegated to: Ferruh Yigit
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Series
  • net/cxgbe: fix duplicate MAC addresses in MPS TCAM
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ci/checkpatch warning coding style issues
ci/Intel-compilation success Compilation OK
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-testing success Testing PASS
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Commit Message

Rahul Lakkireddy Sept. 1, 2020, 5:18 p.m. UTC
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
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>
---
 drivers/net/cxgbe/mps_tcam.c | 1 +
 1 file changed, 1 insertion(+)

Patch
diff mbox series

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