From: Mark Haverkamp Date: Wed, 10 May 2006 16:12:48 +0000 (-0700) Subject: [SCSI] aacraid: adjustable timeouts X-Git-Tag: v2.6.18-rc1~1092^2~65 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=404d9a900b5bc83a3780ec337ca6fdcb04b766c0;p=linux-2.6 [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 --- diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 5d2989754c..be8dde4c0f 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); diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index f773b0dcfc..ff5c380eae 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -1815,3 +1815,5 @@ int aac_probe_container(struct aac_dev *dev, int cid); extern int numacb; extern int acbsize; extern char aac_driver_version[]; +extern int startup_timeout; +extern int aif_timeout; diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 9f9f4aae23..1c83af3d0f 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -1214,7 +1214,7 @@ int aac_command_thread(void *data) * since the last read off * the queue? */ - if ((time_now - time_last) > 120) { + if ((time_now - time_last) > aif_timeout) { entry = entry->next; aac_close_fib_context(dev, fibctx); continue; diff --git a/drivers/scsi/aacraid/rkt.c b/drivers/scsi/aacraid/rkt.c index 7a23e027eb..5b52966bbb 100644 --- a/drivers/scsi/aacraid/rkt.c +++ b/drivers/scsi/aacraid/rkt.c @@ -444,14 +444,14 @@ int aac_rkt_init(struct aac_dev *dev) */ while (!(rkt_readl(dev, MUnit.OMRx[0]) & KERNEL_UP_AND_RUNNING)) { - if(time_after(jiffies, start+180*HZ)) + if(time_after(jiffies, start+startup_timeout*HZ)) { status = rkt_readl(dev, MUnit.OMRx[0]); printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", dev->name, instance, status); goto error_iounmap; } - schedule_timeout_uninterruptible(1); + msleep(1); } if (request_irq(dev->scsi_host_ptr->irq, aac_rkt_intr, SA_SHIRQ|SA_INTERRUPT, "aacraid", (void *)dev)<0) { diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c index 729b9eb268..9dadfb28b3 100644 --- a/drivers/scsi/aacraid/rx.c +++ b/drivers/scsi/aacraid/rx.c @@ -444,14 +444,14 @@ int aac_rx_init(struct aac_dev *dev) while ((!(rx_readl(dev, IndexRegs.Mailbox[7]) & KERNEL_UP_AND_RUNNING)) || (!(rx_readl(dev, MUnit.OMRx[0]) & KERNEL_UP_AND_RUNNING))) { - if(time_after(jiffies, start+180*HZ)) + if(time_after(jiffies, start+startup_timeout*HZ)) { status = rx_readl(dev, IndexRegs.Mailbox[7]); printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", dev->name, instance, status); goto error_iounmap; } - schedule_timeout_uninterruptible(1); + msleep(1); } if (request_irq(dev->scsi_host_ptr->irq, aac_rx_intr, SA_SHIRQ|SA_INTERRUPT, "aacraid", (void *)dev)<0) { diff --git a/drivers/scsi/aacraid/sa.c b/drivers/scsi/aacraid/sa.c index a534549082..ecc47b605c 100644 --- a/drivers/scsi/aacraid/sa.c +++ b/drivers/scsi/aacraid/sa.c @@ -318,13 +318,13 @@ int aac_sa_init(struct aac_dev *dev) * Wait for the adapter to be up and running. Wait up to 3 minutes. */ while (!(sa_readl(dev, Mailbox7) & KERNEL_UP_AND_RUNNING)) { - if (time_after(jiffies, start+180*HZ)) { + if (time_after(jiffies, start+startup_timeout*HZ)) { status = sa_readl(dev, Mailbox7); printk(KERN_WARNING "%s%d: adapter kernel failed to start, init status = %lx.\n", name, instance, status); goto error_iounmap; } - schedule_timeout_uninterruptible(1); + msleep(1); } if (request_irq(dev->scsi_host_ptr->irq, aac_sa_intr, SA_SHIRQ|SA_INTERRUPT, "aacraid", (void *)dev ) < 0) {