From 9944af2e1e70704c940f2dd7e933847a295b5d66 Mon Sep 17 00:00:00 2001 From: Mark McLoughlin <markmc@redhat.com> Date: Fri, 16 Jan 2009 10:17:41 +0000 Subject: [PATCH 38/54] Handle link status in qemu_sendv_packet() If link is down, pretend that the packet has been successfully sent. Signed-off-by: Mark McLoughlin <markmc@redhat.com> RH-Upstream-status: submitted(kvm-devel) RH-Acked-by: Mark McLoughlin <markmc@redhat.com> --- qemu/net.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/qemu/net.c b/qemu/net.c index 9841197..b4c92da 100644 --- a/qemu/net.c +++ b/qemu/net.c @@ -428,6 +428,16 @@ static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, return offset; } +static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt) +{ + size_t offset = 0; + int i; + + for (i = 0; i < iovcnt; i++) + offset += iov[i].iov_len; + return offset; +} + ssize_t qemu_sendv_packet(VLANClientState *vc1, const struct iovec *iov, int iovcnt) { @@ -435,12 +445,17 @@ ssize_t qemu_sendv_packet(VLANClientState *vc1, const struct iovec *iov, VLANClientState *vc; ssize_t max_len = 0; + if (vc1->link_down) + return calc_iov_length(iov, iovcnt); + for (vc = vlan->first_client; vc != NULL; vc = vc->next) { ssize_t len = 0; if (vc == vc1) continue; + if (vc->link_down) + len = calc_iov_length(iov, iovcnt); if (vc->fd_readv) len = vc->fd_readv(vc->opaque, iov, iovcnt); else if (vc->fd_read) -- 1.6.1