From 404d9a900b5bc83a3780ec337ca6fdcb04b766c0 Mon Sep 17 00:00:00 2001 From: Mark Haverkamp Date: Wed, 10 May 2006 09:12:48 -0700 Subject: [SCSI] aacraid: adjustable timeouts Received From Mark Salyzyn Add the ability to adjust for unusual corner case failures. Both of these additional module parameters deal with embedded, non-intel or complicated system scenarios. Aif_timeout can be increased past the default 2 minute timeout to drop application registrations when a system has an unusually high event load resulting from continuing management requests, or simultaneous builds, or sluggish user space as a result of system load. Startup_timeout can be increased past the default 3 minute timeout to drop an adapter initialization for systems that have a very large number of targets, or slow to spin-up targets, or a complicated set of array configurations that extend the time for the firmware to declare that it is operational. This timeout would only have an affect on non-intel based systems, as the (more patient) BIOS would generally be where the startup delay would be dealt with. Signed-off-by: Mark Haverkamp Signed-off-by: James Bottomley --- drivers/scsi/aacraid/aachba.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/scsi/aacraid/aachba.c') diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 5d2989754c9..be8dde4c0f0 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -148,6 +148,8 @@ static int nondasd = -1; static int dacmode = -1; static int commit = -1; +int startup_timeout = 180; +int aif_timeout = 120; module_param(nondasd, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on"); @@ -155,6 +157,10 @@ module_param(dacmode, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on"); module_param(commit, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the adapter for foreign arrays.\nThis is typically needed in systems that do not have a BIOS. 0=off, 1=on"); +module_param(startup_timeout, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for adapter to have it's kernel up and\nrunning. This is typically adjusted for large systems that do not have a BIOS."); +module_param(aif_timeout, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for applications to pick up AIFs before\nderegistering them. This is typically adjusted for heavily burdened systems."); int numacb = -1; module_param(numacb, int, S_IRUGO|S_IWUSR); -- cgit v1.2.3