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| author | Michael Brown | 2008-04-22 18:40:50 +0200 |
|---|---|---|
| committer | Michael Brown | 2008-04-22 18:40:50 +0200 |
| commit | 1ba959c6b342b314dfb01ca0a926ed6832c090b3 (patch) | |
| tree | d977e301ebfe46d76f9def376e9edb173b96eb26 /src/usr/autoboot.c | |
| parent | [Infiniband] Fix event queue doorbell ringing on Arbel (diff) | |
| download | ipxe-1ba959c6b342b314dfb01ca0a926ed6832c090b3.tar.gz ipxe-1ba959c6b342b314dfb01ca0a926ed6832c090b3.tar.xz ipxe-1ba959c6b342b314dfb01ca0a926ed6832c090b3.zip | |
[NETDEV] Add notion of link state
Add ability for network devices to flag link up/down state to the
networking core.
Autobooting code will now wait for link-up before attempting DHCP.
IPoIB reflects the Infiniband link state as the network device link state
(which is not strictly correct; we also need a succesful IPoIB IPv4
broadcast group join), but is probably more informative.
Diffstat (limited to 'src/usr/autoboot.c')
| -rw-r--r-- | src/usr/autoboot.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/usr/autoboot.c b/src/usr/autoboot.c index c1a61ec0..cff6e95d 100644 --- a/src/usr/autoboot.c +++ b/src/usr/autoboot.c @@ -38,6 +38,9 @@ * */ +/** Time to wait for link-up */ +#define LINK_WAIT_MS 15000 + /** * Identify the boot network device * @@ -136,6 +139,14 @@ static int netboot ( struct net_device *netdev ) { return rc; ifstat ( netdev ); + /* Wait for link-up */ + printf ( "Waiting for link-up on %s...", netdev->name ); + if ( ( rc = iflinkwait ( netdev, LINK_WAIT_MS ) ) != 0 ) { + printf ( " no link detected\n" ); + return rc; + } + printf ( " ok\n" ); + /* Configure device via DHCP */ if ( ( rc = dhcp ( netdev ) ) != 0 ) return rc; |