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sunhme: flush any queued packets when HME_MAC_RXCFG_ENABLE bit is raised

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Some client drivers use this bit to pause and resume the driver so make sure
that queued packets are flushed when the MAC is disabled and then reactivated.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
This commit is contained in:
Mark Cave-Ayland 2019-06-30 18:21:50 +01:00
parent 076489c043
commit 1058e1a377
1 changed files with 10 additions and 0 deletions
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10
hw/net/sunhme.c
View file

@ -373,10 +373,20 @@ static void sunhme_mac_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
{
SunHMEState *s = SUNHME(opaque);
uint64_t oldval = s->macregs[addr >> 2];
trace_sunhme_mac_write(addr, val);
s->macregs[addr >> 2] = val;
switch (addr) {
case HME_MACI_RXCFG:
if (!(oldval & HME_MAC_RXCFG_ENABLE) &&
(val & HME_MAC_RXCFG_ENABLE)) {
qemu_flush_queued_packets(qemu_get_queue(s->nic));
}
break;
}
}
static uint64_t sunhme_mac_read(void *opaque, hwaddr addr,