diff options
| author | Ed Cashin <ecashin@coraid.com> | 2012-12-17 16:03:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-17 17:15:24 -0800 |
| commit | 3fc9b032489d365957ce531d32e225b2d0b3ed11 (patch) | |
| tree | 4e3ba6f0c3e89d98cede84bec580230b410cd0e1 /drivers/block/aoe/aoe.h | |
| parent | 5f0c9c48e7265039c3f945aaf44a1c6ae8adbd01 (diff) | |
aoe: commands in retransmit queue use new destination on failure
When one remote MAC address isn't working as a destination for AoE
commands, the frames used to track information associated with the AoE
commands are moved to a new aoetgt (defined by the tuple of {AoE major,
AoE minor, target MAC address}).
This patch makes sure that the frames on the queue for retransmits that
need to be done are updated to use the new destination, so that
retransmits will be sent through a working network path.
Without this change, packets on the retransmit queue will be needlessly
retransmitted to the unresponsive destination MAC, possibly causing
premature target failure before there's time for the retransmit timer to
run again, decide to retransmit again, and finally update the destination
to a working MAC address on the AoE target.
Signed-off-by: Ed Cashin <ecashin@coraid.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/block/aoe/aoe.h')
| -rw-r--r-- | drivers/block/aoe/aoe.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h index 9fb68fc3b280..c253cca4985b 100644 --- a/drivers/block/aoe/aoe.h +++ b/drivers/block/aoe/aoe.h @@ -108,6 +108,7 @@ struct frame { struct timeval sent; /* high-res time packet was sent */ u32 sent_jiffs; /* low-res jiffies-based sent time */ ulong waited; + ulong waited_total; struct aoetgt *t; /* parent target I belong to */ sector_t lba; struct sk_buff *skb; /* command skb freed on module exit */ |