net: sh_eth: add support for multicast filtering

Some controllers have TSU. It can filter multicast by hardware.
This patch supports it.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index cb07add8638f..86b392e22c01 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -29,6 +29,8 @@
 #define RX_RING_SIZE    64      /* Rx ring size */
 #define ETHERSMALL              60
 #define PKT_BUF_SZ              1538
+#define SH_ETH_TSU_TIMEOUT_MS   500
+#define SH_ETH_TSU_CAM_ENTRIES  32
 
 enum {
         /* E-DMAC registers */
@@ -778,6 +780,7 @@ struct sh_eth_private {
         char post_rx;           /* POST receive */
         char post_fw;           /* POST forward */
         struct net_device_stats tsu_stats;      /* TSU forward status */
+        int port;               /* for TSU */
 
         unsigned no_ether_link:1;
         unsigned ether_link_active_low:1;
@@ -811,6 +814,12 @@ static inline unsigned long sh_eth_read(struct net_device *ndev,
         return ioread32(mdp->addr + mdp->reg_offset[enum_index]);
 }
 
+static inline void *sh_eth_tsu_get_offset(struct sh_eth_private *mdp,
+                                          int enum_index)
+{
+        return mdp->tsu_addr + mdp->reg_offset[enum_index];
+}
+
 static inline void sh_eth_tsu_write(struct sh_eth_private *mdp,
                                 unsigned long data, int enum_index)
 {