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igb: Enable nfc filters to specify MAC addresses

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This allows igb_add_filter()/igb_erase_filter() to work on filters
that include MAC addresses (both source and destination).

For now, this only exposes the functionality, the next commit glues
ethtool into this. Later in this series, these APIs are used to allow
offloading of cls_flower filters.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@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:
Vinicius Costa Gomes 2018-04-10 10:49:56 -07:00 committed by Jeff Kirsher
parent 872f923c5b
commit bae51fefe2
2 changed files with 32 additions and 0 deletions
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4
drivers/net/ethernet/intel/igb/igb.h
View File

@ -442,6 +442,8 @@ struct hwmon_buff {
enum igb_filter_match_flags {
IGB_FILTER_FLAG_ETHER_TYPE = 0x1,
IGB_FILTER_FLAG_VLAN_TCI = 0x2,
IGB_FILTER_FLAG_SRC_MAC_ADDR = 0x4,
IGB_FILTER_FLAG_DST_MAC_ADDR = 0x8,
};
#define IGB_MAX_RXNFC_FILTERS 16
@ -456,6 +458,8 @@ struct igb_nfc_input {
u8 match_flags;
__be16 etype;
__be16 vlan_tci;
u8 src_addr[ETH_ALEN];
u8 dst_addr[ETH_ALEN];
};
struct igb_nfc_filter {

28
drivers/net/ethernet/intel/igb/igb_ethtool.c
View File

@ -2776,6 +2776,25 @@ int igb_add_filter(struct igb_adapter *adapter, struct igb_nfc_filter *input)
return err;
}
if (input->filter.match_flags & IGB_FILTER_FLAG_DST_MAC_ADDR) {
err = igb_add_mac_steering_filter(adapter,
input->filter.dst_addr,
input->action, 0);
err = min_t(int, err, 0);
if (err)
return err;
}
if (input->filter.match_flags & IGB_FILTER_FLAG_SRC_MAC_ADDR) {
err = igb_add_mac_steering_filter(adapter,
input->filter.src_addr,
input->action,
IGB_MAC_STATE_SRC_ADDR);
err = min_t(int, err, 0);
if (err)
return err;
}
if (input->filter.match_flags & IGB_FILTER_FLAG_VLAN_TCI)
err = igb_rxnfc_write_vlan_prio_filter(adapter, input);
@ -2824,6 +2843,15 @@ int igb_erase_filter(struct igb_adapter *adapter, struct igb_nfc_filter *input)
igb_clear_vlan_prio_filter(adapter,
ntohs(input->filter.vlan_tci));
if (input->filter.match_flags & IGB_FILTER_FLAG_SRC_MAC_ADDR)
igb_del_mac_steering_filter(adapter, input->filter.src_addr,
input->action,
IGB_MAC_STATE_SRC_ADDR);
if (input->filter.match_flags & IGB_FILTER_FLAG_DST_MAC_ADDR)
igb_del_mac_steering_filter(adapter, input->filter.dst_addr,
input->action, 0);
return 0;
}