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net: introduce qemu_get_nic()

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To support multiqueue, this patch introduces a helper qemu_get_nic() to get
NICState from a NetClientState. The following patches would refactor this helper
to support multiqueue.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jason Wang 2013-01-30 19:12:23 +08:00 • committed by Anthony Liguori
parent b356f76de3
commit cc1f0f4542
28 changed files with 92 additions and 78 deletions
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8
hw/e1000.c
View file

@ -748,7 +748,7 @@ receive_filter(E1000State *s, const uint8_t *buf, int size)
static void
e1000_set_link_status(NetClientState *nc)
{
E1000State *s = DO_UPCAST(NICState, nc, nc)->opaque;
E1000State *s = qemu_get_nic_opaque(nc);
uint32_t old_status = s->mac_reg[STATUS];
if (nc->link_down) {
@ -782,7 +782,7 @@ static bool e1000_has_rxbufs(E1000State *s, size_t total_size)
static int
e1000_can_receive(NetClientState *nc)
{
E1000State *s = DO_UPCAST(NICState, nc, nc)->opaque;
E1000State *s = qemu_get_nic_opaque(nc);
return (s->mac_reg[RCTL] & E1000_RCTL_EN) && e1000_has_rxbufs(s, 1);
}
@ -798,7 +798,7 @@ static uint64_t rx_desc_base(E1000State *s)
static ssize_t
e1000_receive(NetClientState *nc, const uint8_t *buf, size_t size)
{
E1000State *s = DO_UPCAST(NICState, nc, nc)->opaque;
E1000State *s = qemu_get_nic_opaque(nc);
struct e1000_rx_desc desc;
dma_addr_t base;
unsigned int n, rdt;
@ -1235,7 +1235,7 @@ e1000_mmio_setup(E1000State *d)
static void
e1000_cleanup(NetClientState *nc)
{
E1000State *s = DO_UPCAST(NICState, nc, nc)->opaque;
E1000State *s = qemu_get_nic_opaque(nc);
s->nic = NULL;
}