diff options
| author | Giuseppe CAVALLARO <peppe.cavallaro@st.com> | 2012-05-13 22:18:41 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-05-14 18:53:19 -0400 |
| commit | cffb13f4d6fb5976f907c37e7fc7f6e6acb10d5f (patch) | |
| tree | 2778dd1ed389a91e78af991cad051ff5d64821e6 /drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c | |
| parent | 20fb18dae04194486c61666dc1d9317f6f6dbf75 (diff) | |
stmmac: extend mac addr reg and fix perfect filering
This patch is to extend the number of MAC address registers
for 16 to 32. In fact, other new 16 registers are available in new
chips and this can help on perfect filter mode for unicast.
This patch also fixes the perfect filtering mode by setting the
bit 31 in the MAC address registers.
v2: fixed Coding Style.
Signed-off-by: Gianni Antoniazzi <gianni.antoniazzi-ext@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c index e7cbcd99c2cb..b5e4d02f15c9 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c @@ -84,10 +84,11 @@ static void dwmac1000_get_umac_addr(void __iomem *ioaddr, unsigned char *addr, GMAC_ADDR_LOW(reg_n)); } -static void dwmac1000_set_filter(struct net_device *dev) +static void dwmac1000_set_filter(struct net_device *dev, int id) { void __iomem *ioaddr = (void __iomem *) dev->base_addr; unsigned int value = 0; + unsigned int perfect_addr_number; CHIP_DBG(KERN_INFO "%s: # mcasts %d, # unicast %d\n", __func__, netdev_mc_count(dev), netdev_uc_count(dev)); @@ -121,8 +122,14 @@ static void dwmac1000_set_filter(struct net_device *dev) writel(mc_filter[1], ioaddr + GMAC_HASH_HIGH); } + /* Extra 16 regs are available in cores newer than the 3.40. */ + if (id > DWMAC_CORE_3_40) + perfect_addr_number = GMAC_MAX_PERFECT_ADDRESSES; + else + perfect_addr_number = GMAC_MAX_PERFECT_ADDRESSES / 2; + /* Handle multiple unicast addresses (perfect filtering)*/ - if (netdev_uc_count(dev) > GMAC_MAX_UNICAST_ADDRESSES) + if (netdev_uc_count(dev) > perfect_addr_number) /* Switch to promiscuous mode is more than 16 addrs are required */ value |= GMAC_FRAME_FILTER_PR; |