system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-09-20 11:07:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

net: stmmac: selftests: Needs to check the number of Multicast regs

Browse source 
When running the MC and UC filter tests we setup a multicast address
that its expected to be blocked. If the number of available multicast
registers is zero, driver will always pass the multicast packets which
will fail the test.

Check if available multicast addresses is enough before running the
tests.

Fixes: 091810dbde ("net: stmmac: Introduce selftests support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jose Abreu 2019-12-18 11:17:35 +01:00 committed by David S. Miller
parent b7ac893652
commit 08c9654308
1 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
View file

@ -624,6 +624,8 @@ static int stmmac_test_mcfilt(struct stmmac_priv *priv)
return -EOPNOTSUPP;
if (netdev_uc_count(priv->dev) >= priv->hw->unicast_filter_entries)
return -EOPNOTSUPP;
if (netdev_mc_count(priv->dev) >= priv->hw->multicast_filter_bins)
return -EOPNOTSUPP;
while (--tries) {
/* We only need to check the mc_addr for collisions */
@ -666,6 +668,8 @@ static int stmmac_test_ucfilt(struct stmmac_priv *priv)
if (stmmac_filter_check(priv))
return -EOPNOTSUPP;
if (netdev_uc_count(priv->dev) >= priv->hw->unicast_filter_entries)
return -EOPNOTSUPP;
if (netdev_mc_count(priv->dev) >= priv->hw->multicast_filter_bins)
return -EOPNOTSUPP;