path: root/Documentation/aoe
diff options
authorEd Cashin <ecashin@coraid.com>2012-12-17 16:04:14 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-17 17:15:25 -0800
commitc450ba0fc12153cb5d3fd582b4ec82c75217a989 (patch)
tree2acf7807aed922a2bb444b8b4f67d40961372331 /Documentation/aoe
parent71114ec45f09eb6ef6f9d41c98d4ab6455086e58 (diff)
aoe: allow user to disable target failure timeout
With this change, the aoe driver treats the value zero as special for the aoe_deadsecs module parameter. Normally, this value specifies the number of seconds during which the driver will continue to attempt retransmits to an unresponsive AoE target. After aoe_deadsecs has elapsed, the aoe driver marks the aoe device as "down" and fails all I/O. The new meaning of an aoe_deadsecs of zero is for the driver to retransmit commands indefinitely. Signed-off-by: Ed Cashin <ecashin@coraid.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/aoe')
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/aoe/aoe.txt b/Documentation/aoe/aoe.txt
index bfc9cb19abcd..c71487d399d1 100644
--- a/Documentation/aoe/aoe.txt
+++ b/Documentation/aoe/aoe.txt
@@ -125,7 +125,9 @@ DRIVER OPTIONS
The aoe_deadsecs module parameter determines the maximum number of
seconds that the driver will wait for an AoE device to provide a
response to an AoE command. After aoe_deadsecs seconds have
- elapsed, the AoE device will be marked as "down".
+ elapsed, the AoE device will be marked as "down". A value of zero
+ is supported for testing purposes and makes the aoe driver keep
+ trying AoE commands forever.
The aoe_maxout module parameter has a default of 128. This is the
maximum number of unresponded packets that will be sent to an AoE

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