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yaml
---
r: 184278
b: refs/heads/master
c: d7b855c
h: refs/heads/master
v: v3
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Jiri Pirko authored and David S. Miller committed Feb 17, 2010
1 parent ced0a57 commit 03efff2
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Showing 2 changed files with 36 additions and 38 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: faf234220fb79a05891477a75180e1d9f7ab4105
refs/heads/master: d7b855c2dcc89587f36338bd383203322efb9903
72 changes: 35 additions & 37 deletions trunk/drivers/net/cassini.c
Original file line number Diff line number Diff line change
Expand Up @@ -2999,6 +2999,40 @@ static inline void cas_init_dma(struct cas *cp)
cas_init_rx_dma(cp);
}

static void cas_process_mc_list(struct cas *cp)
{
u16 hash_table[16];
u32 crc;
struct dev_mc_list *dmi;
int i = 1;

memset(hash_table, 0, sizeof(hash_table));
netdev_for_each_mc_addr(dmi, cp->dev) {
if (i <= CAS_MC_EXACT_MATCH_SIZE) {
/* use the alternate mac address registers for the
* first 15 multicast addresses
*/
writel((dmi->dmi_addr[4] << 8) | dmi->dmi_addr[5],
cp->regs + REG_MAC_ADDRN(i*3 + 0));
writel((dmi->dmi_addr[2] << 8) | dmi->dmi_addr[3],
cp->regs + REG_MAC_ADDRN(i*3 + 1));
writel((dmi->dmi_addr[0] << 8) | dmi->dmi_addr[1],
cp->regs + REG_MAC_ADDRN(i*3 + 2));
i++;
}
else {
/* use hw hash table for the next series of
* multicast addresses
*/
crc = ether_crc_le(ETH_ALEN, dmi->dmi_addr);
crc >>= 24;
hash_table[crc >> 4] |= 1 << (15 - (crc & 0xf));
}
}
for (i = 0; i < 16; i++)
writel(hash_table[i], cp->regs + REG_MAC_HASH_TABLEN(i));
}

/* Must be invoked under cp->lock. */
static u32 cas_setup_multicast(struct cas *cp)
{
Expand All @@ -3014,43 +3048,7 @@ static u32 cas_setup_multicast(struct cas *cp)
rxcfg |= MAC_RX_CFG_HASH_FILTER_EN;

} else {
u16 hash_table[16];
u32 crc;
struct dev_mc_list *dmi = cp->dev->mc_list;
int i;

/* use the alternate mac address registers for the
* first 15 multicast addresses
*/
for (i = 1; i <= CAS_MC_EXACT_MATCH_SIZE; i++) {
if (!dmi) {
writel(0x0, cp->regs + REG_MAC_ADDRN(i*3 + 0));
writel(0x0, cp->regs + REG_MAC_ADDRN(i*3 + 1));
writel(0x0, cp->regs + REG_MAC_ADDRN(i*3 + 2));
continue;
}
writel((dmi->dmi_addr[4] << 8) | dmi->dmi_addr[5],
cp->regs + REG_MAC_ADDRN(i*3 + 0));
writel((dmi->dmi_addr[2] << 8) | dmi->dmi_addr[3],
cp->regs + REG_MAC_ADDRN(i*3 + 1));
writel((dmi->dmi_addr[0] << 8) | dmi->dmi_addr[1],
cp->regs + REG_MAC_ADDRN(i*3 + 2));
dmi = dmi->next;
}

/* use hw hash table for the next series of
* multicast addresses
*/
memset(hash_table, 0, sizeof(hash_table));
while (dmi) {
crc = ether_crc_le(ETH_ALEN, dmi->dmi_addr);
crc >>= 24;
hash_table[crc >> 4] |= 1 << (15 - (crc & 0xf));
dmi = dmi->next;
}
for (i=0; i < 16; i++)
writel(hash_table[i], cp->regs +
REG_MAC_HASH_TABLEN(i));
cas_process_mc_list(cp);
rxcfg |= MAC_RX_CFG_HASH_FILTER_EN;
}

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