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author | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-05-05 21:26:43 +0000 |
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committer | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-05-05 21:26:43 +0000 |
commit | 603d3e79b2c64bceb8826d3d65b525188db47797 (patch) | |
tree | e520b0d2e9f8f87250ecee75397e54e6e0658265 /vl.c | |
parent | b2eb849d4b1fdb6f35d5c46958c7f703cf64cfef (diff) | |
download | hqemu-603d3e79b2c64bceb8826d3d65b525188db47797.zip hqemu-603d3e79b2c64bceb8826d3d65b525188db47797.tar.gz |
qemu: generate signals on tap I/O
Currently tap does not generate signals on I/O; this causes
network latency to be dependent on the timer tick (1ms without
dyntick, guest dependent with dyntick). By generating a signal
on I/O, we can inform the guest immediately that a packet has
arrived.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4341 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'vl.c')
-rw-r--r-- | vl.c | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -4030,6 +4030,7 @@ static TAPState *net_tap_fd_init(VLANState *vlan, int fd) if (!s) return NULL; s->fd = fd; + enable_sigio_timer(fd); s->vc = qemu_new_vlan_client(vlan, tap_receive, NULL, s); qemu_set_fd_handler(s->fd, tap_send, NULL, s); snprintf(s->vc->info_str, sizeof(s->vc->info_str), "tap: fd=%d", fd); |