diff options
| author | Michael Brown <mcb30@ipxe.org> | 2015-11-10 14:05:46 +0000 |
|---|---|---|
| committer | Michael Brown <mcb30@ipxe.org> | 2015-11-10 14:05:46 +0000 |
| commit | ed0d7c4f6f8db7bda1e74567693a0c525b9cf159 (patch) | |
| tree | 9445c55745f75db057fb88d91c2989b0c7a68c4e /src/config | |
| parent | d5f7ee60e7228d8d62507087bbb39c733a622939 (diff) | |
| download | ipxe-ed0d7c4f6f8db7bda1e74567693a0c525b9cf159.tar.gz | |
[dhcp] Limit maximum number of DHCP discovery deferrals
For switches which remain permanently in the non-forwarding state (or
which erroneously report a non-forwarding state), ensure that iPXE
will eventually give up waiting for the link to become unblocked.
Originally-fixed-by: Wissam Shoukair <wissams@mellanox.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/config')
| -rw-r--r-- | src/config/dhcp.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/config/dhcp.h b/src/config/dhcp.h index 49fe16b92..bff5b56d6 100644 --- a/src/config/dhcp.h +++ b/src/config/dhcp.h @@ -25,6 +25,12 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); //#define DHCP_DISC_END_TIMEOUT_SEC 32 /* as per PXE spec */ /* + * Maximum number of discovery deferrals due to blocked links + * (e.g. from non-forwarding STP ports) + */ +#define DHCP_DISC_MAX_DEFERRALS 60 + +/* * ProxyDHCP offers are given precedence by continue to wait for them * after a valid DHCPOFFER is received. We'll wait through this * timeout for it. The PXE spec indicates waiting through the 4 & 8 |