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ixgbe: Allow FDB entries access to more RAR filters

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This change makes it so that we allow the PF to make use of all free RAR
entries for FDB use if needed.

Previously the code limited us to 16 unicast entries, however this was
shared between MACVLAN which wasn't limited and the FDB code which was.  So
instead of treating the FDB code as a second class citizen I have updated
it so that it has access to just as many entries as the MACVLAN filters.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Darin Miller <darin.j.miller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2015-10-22 16:26:42 -07:00 committed by Jeff Kirsher
parent 0f079d2283
commit 2f9be16655
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
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@ -8200,7 +8200,10 @@ static int ixgbe_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
{
/* guarantee we can provide a unique filter for the unicast address */
if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr)) {
if (IXGBE_MAX_PF_MACVLANS <= netdev_uc_count(dev))
struct ixgbe_adapter *adapter = netdev_priv(dev);
u16 pool = VMDQ_P(0);
if (netdev_uc_count(dev) >= ixgbe_available_rars(adapter, pool))
return -ENOMEM;
}