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sunhme: flush any queued packets when HME_MAC_RXCFG_ENABLE bit is raised 

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
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@ -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,