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igc: Add debug messages to MAC filter code

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This patch adds log messages to functions related to the MAC address
filtering code to ease debugging.

Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Andre Guedes 2020-03-18 16:01:02 -07:00 committed by Jeff Kirsher
parent 5f93071372
commit 949b922e8b
1 changed files with 22 additions and 2 deletions
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24
drivers/net/ethernet/intel/igc/igc_main.c
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@ -776,6 +776,7 @@ static void igc_setup_tctl(struct igc_adapter *adapter)
static void igc_set_mac_filter_hw(struct igc_adapter *adapter, int index,
const u8 *addr, int queue)
{
struct net_device *dev = adapter->netdev;
struct igc_hw *hw = &adapter->hw;
u32 ral, rah;
@ -795,6 +796,8 @@ static void igc_set_mac_filter_hw(struct igc_adapter *adapter, int index,
wr32(IGC_RAL(index), ral);
wr32(IGC_RAH(index), rah);
netdev_dbg(dev, "MAC address filter set in HW: index %d", index);
}
/**
@ -804,6 +807,7 @@ static void igc_set_mac_filter_hw(struct igc_adapter *adapter, int index,
*/
static void igc_clear_mac_filter_hw(struct igc_adapter *adapter, int index)
{
struct net_device *dev = adapter->netdev;
struct igc_hw *hw = &adapter->hw;
if (WARN_ON(index >= hw->mac.rar_entry_count))
@ -811,18 +815,24 @@ static void igc_clear_mac_filter_hw(struct igc_adapter *adapter, int index)
wr32(IGC_RAL(index), 0);
wr32(IGC_RAH(index), 0);
netdev_dbg(dev, "MAC address filter cleared in HW: index %d", index);
}
/* Set default MAC address for the PF in the first RAR entry */
static void igc_set_default_mac_filter(struct igc_adapter *adapter)
{
struct igc_mac_addr *mac_table = &adapter->mac_table[0];
struct net_device *dev = adapter->netdev;
u8 *addr = adapter->hw.mac.addr;
ether_addr_copy(mac_table->addr, adapter->hw.mac.addr);
netdev_dbg(dev, "Set default MAC address filter: address %pM", addr);
ether_addr_copy(mac_table->addr, addr);
mac_table->state = IGC_MAC_STATE_DEFAULT | IGC_MAC_STATE_IN_USE;
mac_table->queue = -1;
igc_set_mac_filter_hw(adapter, 0, mac_table->addr, mac_table->queue);
igc_set_mac_filter_hw(adapter, 0, addr, mac_table->queue);
}
/**
@ -2231,6 +2241,7 @@ static int igc_get_avail_mac_filter_slot(struct igc_adapter *adapter)
int igc_add_mac_filter(struct igc_adapter *adapter, const u8 *addr,
const s8 queue, const u8 flags)
{
struct net_device *dev = adapter->netdev;
int index;
if (!is_valid_ether_addr(addr))
@ -2246,6 +2257,9 @@ int igc_add_mac_filter(struct igc_adapter *adapter, const u8 *addr,
if (index < 0)
return -ENOSPC;
netdev_dbg(dev, "Add MAC address filter: index %d address %pM queue %d",
index, addr, queue);
ether_addr_copy(adapter->mac_table[index].addr, addr);
adapter->mac_table[index].state |= IGC_MAC_STATE_IN_USE | flags;
update_queue_assignment:
@ -2267,6 +2281,7 @@ int igc_add_mac_filter(struct igc_adapter *adapter, const u8 *addr,
int igc_del_mac_filter(struct igc_adapter *adapter, const u8 *addr,
const u8 flags)
{
struct net_device *dev = adapter->netdev;
struct igc_mac_addr *entry;
int index;
@ -2284,9 +2299,14 @@ int igc_del_mac_filter(struct igc_adapter *adapter, const u8 *addr,
* We just reset to its default value i.e. disable queue
* assignment.
*/
netdev_dbg(dev, "Disable default MAC filter queue assignment");
entry->queue = -1;
igc_set_mac_filter_hw(adapter, 0, addr, entry->queue);
} else {
netdev_dbg(dev, "Delete MAC address filter: index %d address %pM",
index, addr);
entry->state = 0;
entry->queue = -1;
memset(entry->addr, 0, ETH_ALEN);