From c450ba0fc12153cb5d3fd582b4ec82c75217a989 Mon Sep 17 00:00:00 2001 From: Ed Cashin Date: Mon, 17 Dec 2012 16:04:14 -0800 Subject: 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 Cc: Jens Axboe Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/aoe/aoe.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'Documentation/aoe/aoe.txt') 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 -- cgit v1.2.3