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i40e/i40evf: fix unicast mac address add 

When using something like "ip maddr add ..." to add another unicast mac
address to the netdev, the mac address comes into the set_rx_mode handler
in the multicast list whether it is a unicast or multicast address.
This was confusing the code when it was trying to search for addresses
that needed to be deleted from the VSI, because it was looking for the
VSI unicast address in the netdev unicast list.  The result was that a
new unicast address would get added to the VSI list and then immediately
removed, and would never actually make it down into the hardware.

This patch removes the separation from unicast and multicast in the search
for filters to be deleted.  It also simplifies the logic a little with a
jump to the bottom of the loop when an address is found.  Now it doesn't
matter which netdev list the address is hiding in, we'll check them all.

Change-ID: Ie3685a92427ae7d2212bf948919ce295bc7a874c
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Shannon Nelson 2015-08-26 15:14:20 -04:00 committed by Jeff Kirsher
parent a72a5abcb3
commit 2f41f33586
2 changed files with 37 additions and 47 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
drivers/net/ethernet/intel/i40e/i40e_main.c
View File

@ -1726,36 +1726,27 @@ static void i40e_set_rx_mode(struct net_device *netdev)
/* remove filter if not in netdev list */
list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) {
bool found = false;
if (!f->is_netdev)
continue;
if (is_multicast_ether_addr(f->macaddr)) {
netdev_for_each_mc_addr(mca, netdev) {
if (ether_addr_equal(mca->addr, f->macaddr)) {
found = true;
break;
}
}
} else {
netdev_for_each_uc_addr(uca, netdev) {
if (ether_addr_equal(uca->addr, f->macaddr)) {
found = true;
break;
}
}
netdev_for_each_mc_addr(mca, netdev)
if (ether_addr_equal(mca->addr, f->macaddr))
goto bottom_of_search_loop;
for_each_dev_addr(netdev, ha) {
if (ether_addr_equal(ha->addr, f->macaddr)) {
found = true;
break;
}
}
}
if (!found)
i40e_del_filter(
vsi, f->macaddr, I40E_VLAN_ANY, false, true);
netdev_for_each_uc_addr(uca, netdev)
if (ether_addr_equal(uca->addr, f->macaddr))
goto bottom_of_search_loop;
for_each_dev_addr(netdev, ha)
if (ether_addr_equal(ha->addr, f->macaddr))
goto bottom_of_search_loop;
/* f->macaddr wasn't found in uc, mc, or ha list so delete it */
i40e_del_filter(vsi, f->macaddr, I40E_VLAN_ANY, false, true);
bottom_of_search_loop:
continue;
}
/* check for other flag changes */

37
drivers/net/ethernet/intel/i40evf/i40evf_main.c
View File

@ -855,6 +855,7 @@ static void i40evf_set_rx_mode(struct net_device *netdev)
struct i40evf_mac_filter *f, *ftmp;
struct netdev_hw_addr *uca;
struct netdev_hw_addr *mca;
struct netdev_hw_addr *ha;
int count = 50;
/* add addr if not already in the filter list */
@ -876,29 +877,27 @@ static void i40evf_set_rx_mode(struct net_device *netdev)
}
/* remove filter if not in netdev list */
list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
bool found = false;
netdev_for_each_mc_addr(mca, netdev)
if (ether_addr_equal(mca->addr, f->macaddr))
goto bottom_of_search_loop;
netdev_for_each_uc_addr(uca, netdev)
if (ether_addr_equal(uca->addr, f->macaddr))
goto bottom_of_search_loop;
for_each_dev_addr(netdev, ha)
if (ether_addr_equal(ha->addr, f->macaddr))
goto bottom_of_search_loop;
if (is_multicast_ether_addr(f->macaddr)) {
netdev_for_each_mc_addr(mca, netdev) {
if (ether_addr_equal(mca->addr, f->macaddr)) {
found = true;
break;
}
}
} else {
netdev_for_each_uc_addr(uca, netdev) {
if (ether_addr_equal(uca->addr, f->macaddr)) {
found = true;
break;
}
}
if (ether_addr_equal(f->macaddr, adapter->hw.mac.addr))
found = true;
}
if (!found) {
goto bottom_of_search_loop;
/* f->macaddr wasn't found in uc, mc, or ha list so delete it */
f->remove = true;
adapter->aq_required |= I40EVF_FLAG_AQ_DEL_MAC_FILTER;
}
bottom_of_search_loop:
continue;
}
clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section);
}