From 1058e1a377680e17bc8b56d5e9cab9559d47a3c1 Mon Sep 17 00:00:00 2001 From: Mark Cave-Ayland Date: Sun, 30 Jun 2019 18:21:50 +0100 Subject: [PATCH] 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 --- hw/net/sunhme.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/hw/net/sunhme.c b/hw/net/sunhme.c index e3a488ee1d..14e7effb88 100644 --- a/hw/net/sunhme.c +++ b/hw/net/sunhme.c @@ -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,