diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/nfs/bootp_subr.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sys/nfs/bootp_subr.c b/sys/nfs/bootp_subr.c index b29a0e9..165999a 100644 --- a/sys/nfs/bootp_subr.c +++ b/sys/nfs/bootp_subr.c @@ -82,6 +82,14 @@ __FBSDID("$FreeBSD$"); #define BOOTP_SETTLE_DELAY 3 #endif +/* + * Wait 10 seconds for interface appearance + * USB ethernet adapters might reqquire some time to pop up + */ +#ifndef BOOTP_IFACE_WAIT_TIMEOUT +#define BOOTP_IFACE_WAIT_TIMEOUT 10 +#endif + /* * What is the longest we will wait before re-sending a request? * Note this is also the frequency of "RPC timeout" messages. @@ -1515,6 +1523,8 @@ bootpc_init(void) #endif struct nfsv3_diskless *nd; struct thread *td; + int timeout = BOOTP_IFACE_WAIT_TIMEOUT * hz; + int delay = hz / 10; nd = &nfsv3_diskless; td = curthread; @@ -1567,6 +1577,7 @@ bootpc_init(void) allocifctx(gctx); #endif +retry: ifctx = STAILQ_FIRST(&gctx->interfaces); IFNET_RLOCK(); TAILQ_FOREACH(ifp, &V_ifnet, if_link) { @@ -1613,6 +1624,11 @@ bootpc_init(void) if (STAILQ_EMPTY(&gctx->interfaces) || STAILQ_FIRST(&gctx->interfaces)->ifp == NULL) { + if (timeout > 0) { + pause("bootpc", delay); + timeout -= delay; + goto retry; + } #ifdef BOOTP_WIRED_TO panic("%s: Could not find interface specified " "by BOOTP_WIRED_TO: " |
