openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

cassini: convert to use netdev_for_each_mc_addr 

Introduced a new function to do the mc list processing, makes code
clearer after transition.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2010-02-17 10:43:33 +00:00 committed by David S. Miller
parent faf234220f
commit d7b855c2dc
1 changed files with 35 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

72
drivers/net/cassini.c
View File

@ -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)
{
@ -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;
}