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etherzynq: implement promisc mode and multicast filter support

front
cinap_lenrek 2016-09-17 15:58:11 +02:00
parent cb9a5a19b0
commit 2aa727ff09
1 changed files with 47 additions and 0 deletions
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47
sys/src/9/zynq/etherzynq.c
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@ -62,6 +62,9 @@ enum {
/* NET_CFG */
SPEED = 1<<0,
FDEN = 1<<1,
COPYALLEN = 1<<4,
MCASTHASHEN = 1<<6,
UCASTHASHEN = 1<<7,
RX1536EN = 1<<8,
GIGE_EN = 1<<10,
RXCHKSUMEN = 1<<24,
@ -290,6 +293,48 @@ ethirq(Ureg *, void *arg)
print("eth: RX overrun, shouldn't happen\n");
}
static void
ethprom(void *arg, int on)
{
Ether *edev;
Ctlr *c;
edev = arg;
c = edev->ctlr;
if(on)
c->r[NET_CFG] |= COPYALLEN;
else
c->r[NET_CFG] &= ~COPYALLEN;
}
static void
ethmcast(void *arg, uchar *ea, int on)
{
Ether *edev;
Ctlr *c;
u64int a;
uchar x;
edev = arg;
c = edev->ctlr;
if(edev->nmaddr == 0){
c->r[NET_CFG] &= ~MCASTHASHEN;
c->r[HASH_BOT] = 0;
c->r[HASH_TOP] = 0;
}
if(!on)
return;
a = (u64int)ea[0] | (u64int)ea[1]<<8 | (u64int)ea[2]<<16 |
(u64int)ea[3]<<24 | (u64int)ea[4]<<32 | (u64int)ea[5]<<40;
x = a ^ (a>>6) ^ (a>>12) ^ (a>>18) ^ (a>>24) ^ (a>>30) ^ (a>>36) ^ (a>>42);
x &= 63;
if(x < 32)
c->r[HASH_BOT] |= 1<<x;
else
c->r[HASH_TOP] |= 1<<(x-32);
c->r[NET_CFG] |= MCASTHASHEN;
}
static int
ethinit(Ether *edev)
{
@ -362,6 +407,8 @@ etherpnp(Ether *edev)
edev->interrupt = ethirq;
edev->transmit = ethtx;
edev->attach = ethattach;
edev->promiscuous = ethprom;
edev->multicast = ethmcast;
edev->arg = edev;
edev->mbps = 1000;