diff options
| -rw-r--r-- | hw/net/lan9118.c | 6 | ||||
| -rw-r--r-- | net/net.c | 5 | ||||
| -rw-r--r-- | net/tap-linux.c | 14 |
3 files changed, 12 insertions, 13 deletions
diff --git a/hw/net/lan9118.c b/hw/net/lan9118.c index 2315f996d4..e528290b41 100644 --- a/hw/net/lan9118.c +++ b/hw/net/lan9118.c @@ -727,14 +727,14 @@ static void tx_fifo_push(lan9118_state *s, uint32_t val) s->txp->cmd_a = val & 0x831f37ff; s->txp->fifo_used++; s->txp->state = TX_B; + s->txp->buffer_size = extract32(s->txp->cmd_a, 0, 11); + s->txp->offset = extract32(s->txp->cmd_a, 16, 5); break; case TX_B: if (s->txp->cmd_a & 0x2000) { /* First segment */ s->txp->cmd_b = val; s->txp->fifo_used++; - s->txp->buffer_size = s->txp->cmd_a & 0x7ff; - s->txp->offset = (s->txp->cmd_a >> 16) & 0x1f; /* End alignment does not include command words. */ n = (s->txp->buffer_size + s->txp->offset + 3) >> 2; switch ((n >> 24) & 3) { @@ -763,7 +763,7 @@ static void tx_fifo_push(lan9118_state *s, uint32_t val) if (s->txp->buffer_size <= 0 && s->txp->pad != 0) { s->txp->pad--; } else { - n = 4; + n = MIN(4, s->txp->buffer_size + s->txp->offset); while (s->txp->offset) { val >>= 8; n--; @@ -164,7 +164,6 @@ void qemu_macaddr_default_if_unset(MACAddr *macaddr) static char *assign_name(NetClientState *nc1, const char *model) { NetClientState *nc; - char buf[256]; int id = 0; QTAILQ_FOREACH(nc, &net_clients, next) { @@ -176,9 +175,7 @@ static char *assign_name(NetClientState *nc1, const char *model) } } - snprintf(buf, sizeof(buf), "%s.%d", model, id); - - return g_strdup(buf); + return g_strdup_printf("%s.%d", model, id); } static void qemu_net_client_destructor(NetClientState *nc) diff --git a/net/tap-linux.c b/net/tap-linux.c index 36c09e24d8..812bf2dfc6 100644 --- a/net/tap-linux.c +++ b/net/tap-linux.c @@ -52,14 +52,17 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, memset(&ifr, 0, sizeof(ifr)); ifr.ifr_flags = IFF_TAP | IFF_NO_PI; - if (ioctl(fd, TUNGETFEATURES, &features) == 0 && - features & IFF_ONE_QUEUE) { + if (ioctl(fd, TUNGETFEATURES, &features) == -1) { + error_report("warning: TUNGETFEATURES failed: %s", strerror(errno)); + features = 0; + } + + if (features & IFF_ONE_QUEUE) { ifr.ifr_flags |= IFF_ONE_QUEUE; } if (*vnet_hdr) { - if (ioctl(fd, TUNGETFEATURES, &features) == 0 && - features & IFF_VNET_HDR) { + if (features & IFF_VNET_HDR) { *vnet_hdr = 1; ifr.ifr_flags |= IFF_VNET_HDR; } else { @@ -82,8 +85,7 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, } if (mq_required) { - if ((ioctl(fd, TUNGETFEATURES, &features) != 0) || - !(features & IFF_MULTI_QUEUE)) { + if (!(features & IFF_MULTI_QUEUE)) { error_report("multiqueue required, but no kernel " "support for IFF_MULTI_QUEUE available"); close(fd); |