diff options
| author | Lendacky, Thomas <Thomas.Lendacky@amd.com> | 2014-06-24 16:19:24 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-06-26 17:14:04 -0700 |
| commit | 801c62d945c6121c0262924732e430f0553bfb37 (patch) | |
| tree | 1f0b7aa98c8ee048d54b141416dccf56e93e9d8b /drivers/net/ethernet/amd/xgbe/xgbe.h | |
| parent | c52e9c6385ec5578eaac2989b855742e52777711 (diff) | |
amd-xgbe: Add support for VLAN filtering
This patch adds support for (imperfect) filtering of
VLAN tag ids using a 16-bit filter hash table. When
VLANs are added, a 4-bit hash is calculated with the
result indicating the bit in the hash table to set.
This table is used by the hardware to drop packets with
a VLAN id that does not hash to a set bit in the table.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe.h')
| -rw-r--r-- | drivers/net/ethernet/amd/xgbe/xgbe.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h index f5da54cddd8d..3cb911f39b60 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe.h +++ b/drivers/net/ethernet/amd/xgbe/xgbe.h @@ -121,6 +121,8 @@ #include <linux/netdevice.h> #include <linux/workqueue.h> #include <linux/phy.h> +#include <linux/if_vlan.h> +#include <linux/bitops.h> #define XGBE_DRV_NAME "amd-xgbe" @@ -393,6 +395,9 @@ struct xgbe_hw_if { int (*enable_rx_vlan_stripping)(struct xgbe_prv_data *); int (*disable_rx_vlan_stripping)(struct xgbe_prv_data *); + int (*enable_rx_vlan_filtering)(struct xgbe_prv_data *); + int (*disable_rx_vlan_filtering)(struct xgbe_prv_data *); + int (*update_vlan_hash_table)(struct xgbe_prv_data *); int (*read_mmd_regs)(struct xgbe_prv_data *, int, int); void (*write_mmd_regs)(struct xgbe_prv_data *, int, int, int); @@ -588,6 +593,9 @@ struct xgbe_prv_data { struct napi_struct napi; struct xgbe_mmc_stats mmc_stats; + /* Filtering support */ + unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; + /* System clock value used for Rx watchdog */ struct clk *sysclock; |