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pcnet: Add link state support

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Update lnkst on link state changes so that guests can obtain this
information via reading back the LED output pin. Works for Linux but
not for guests that depend on the missing PHY.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jan Kiszka 2011-10-07 12:27:25 +02:00 • committed by Anthony Liguori
parent 7ba7974197
commit e1c2008af6
4 changed files with 10 additions and 0 deletions
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7
hw/pcnet.c
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@ -1197,6 +1197,13 @@ ssize_t pcnet_receive(VLANClientState *nc, const uint8_t *buf, size_t size_)
return size_;
}
void pcnet_set_link_status(VLANClientState *nc)
{
PCNetState *d = DO_UPCAST(NICState, nc, nc)->opaque;
d->lnkst = nc->link_down ? 0 : 0x40;
}
static void pcnet_transmit(PCNetState *s)
{
target_phys_addr_t xmit_cxda = 0;