tg3: Add unicast filtering support.

Up to 3 additional unicast addresses can be added to the perfect match
filter table.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 80d55bf699baaaecf45de49540c718660e3ceedc..c3b12de0b91853f9879fb756b0b031399ad239cb 100644 (file)
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -37,6 +37,7 @@
 #include <linux/mii.h>
 #include <linux/phy.h>
 #include <linux/brcmphy.h>
+#include <linux/if.h>
 #include <linux/if_vlan.h>
 #include <linux/ip.h>
 #include <linux/tcp.h>
@@ -208,6 +209,9 @@ static inline void _tg3_flag_clear(enum TG3_FLAGS flag, unsigned long *bits)
 
 #define TG3_RAW_IP_ALIGN 2
 
+#define TG3_MAX_UCAST_ADDR(tp) (tg3_flag((tp), ENABLE_ASF) ? 2 : 3)
+#define TG3_UCAST_ADDR_IDX(tp) (tg3_flag((tp), ENABLE_ASF) ? 2 : 1)
+
 #define TG3_FW_UPDATE_TIMEOUT_SEC      5
 #define TG3_FW_UPDATE_FREQ_SEC         (TG3_FW_UPDATE_TIMEOUT_SEC / 2)
 
@@ -9198,6 +9202,7 @@ static int tg3_chip_reset(struct tg3 *tp)
 
 static void tg3_get_nstats(struct tg3 *, struct rtnl_link_stats64 *);
 static void tg3_get_estats(struct tg3 *, struct tg3_ethtool_stats *);
+static void __tg3_set_rx_mode(struct net_device *);
 
 /* tp->lock is held. */
 static int tg3_halt(struct tg3 *tp, int kind, bool silent)
@@ -9258,6 +9263,7 @@ static int tg3_set_mac_addr(struct net_device *dev, void *p)
        }
        spin_lock_bh(&tp->lock);
        __tg3_set_mac_addr(tp, skip_mac_1);
+       __tg3_set_rx_mode(dev);
        spin_unlock_bh(&tp->lock);
 
        return err;
@@ -9646,6 +9652,20 @@ static void __tg3_set_rx_mode(struct net_device *dev)
                tw32(MAC_HASH_REG_3, mc_filter[3]);
        }
 
+       if (netdev_uc_count(dev) > TG3_MAX_UCAST_ADDR(tp)) {
+               rx_mode |= RX_MODE_PROMISC;
+       } else if (!(dev->flags & IFF_PROMISC)) {
+               /* Add all entries into to the mac addr filter list */
+               int i = 0;
+               struct netdev_hw_addr *ha;
+
+               netdev_for_each_uc_addr(ha, dev) {
+                       __tg3_set_one_mac_addr(tp, ha->addr,
+                                              i + TG3_UCAST_ADDR_IDX(tp));
+                       i++;
+               }
+       }
+
        if (rx_mode != tp->rx_mode) {
                tp->rx_mode = rx_mode;
                tw32_f(MAC_RX_MODE, rx_mode);
@@ -17620,6 +17640,7 @@ static int tg3_init_one(struct pci_dev *pdev,
                features |= NETIF_F_LOOPBACK;
 
        dev->hw_features |= features;
+       dev->priv_flags |= IFF_UNICAST_FLT;
 
        if (tg3_chip_rev_id(tp) == CHIPREV_ID_5705_A1 &&
            !tg3_flag(tp, TSO_CAPABLE) &&