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igb: rework igb_set_multi so that vfs are properly updated 

Currently if there are no multicast addresses programmed into the PF then
the VFs cannot have their multicast filters reset.  This change makes it so
the code path that updates vf multicast is always called along with the pf
updates.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck 2009-03-20 00:17:25 +00:00 committed by David S. Miller
parent 0e34048572
commit c5cd11e380
1 changed files with 8 additions and 10 deletions
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18
drivers/net/igb/igb_main.c
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@ -2464,7 +2464,7 @@ static void igb_set_multi(struct net_device *netdev)
struct e1000_hw *hw = &adapter->hw;
struct e1000_mac_info *mac = &hw->mac;
struct dev_mc_list *mc_ptr;
u8 *mta_list;
u8 *mta_list = NULL;
u32 rctl;
int i;
@ -2485,17 +2485,15 @@ static void igb_set_multi(struct net_device *netdev)
}
wr32(E1000_RCTL, rctl);
if (!netdev->mc_count) {
/* nothing to program, so clear mc list */
igb_update_mc_addr_list(hw, NULL, 0, 1,
mac->rar_entry_count);
return;
if (netdev->mc_count) {
mta_list = kzalloc(netdev->mc_count * 6, GFP_ATOMIC);
if (!mta_list) {
dev_err(&adapter->pdev->dev,
"failed to allocate multicast filter list\n");
return;
}
}
mta_list = kzalloc(netdev->mc_count * 6, GFP_ATOMIC);
if (!mta_list)
return;
/* The shared function expects a packed array of only addresses. */
mc_ptr = netdev->mc_list;