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authorJeff Garzik <jgarzik@pobox.com>2006-02-09 04:30:18 -0500
committerJeff Garzik <jgarzik@pobox.com>2006-02-09 04:30:18 -0500
commit389984cb75a5d26aa6ee9724c343bbd130cb3eec (patch)
tree7eac7923ffdcae4539897ff4275c97259be60d0d
parent8a19ac89edbe9b702c10fd2039b8cb2db4644a5f (diff)
parent9caafa6c8686e319cf4d5f3757b3972c6c522b7c (diff)
Merge branch 'upstream-fixes'
-rw-r--r--drivers/scsi/sata_sil.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c
index b017f85e6d6..17f74d3c10e 100644
--- a/drivers/scsi/sata_sil.c
+++ b/drivers/scsi/sata_sil.c
@@ -231,6 +231,10 @@ MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, sil_pci_tbl);
MODULE_VERSION(DRV_VERSION);
+static int slow_down = 0;
+module_param(slow_down, int, 0444);
+MODULE_PARM_DESC(slow_down, "Sledgehammer used to work around random problems, by limiting commands to 15 sectors (0=off, 1=on)");
+
static unsigned char sil_get_device_cache_line(struct pci_dev *pdev)
{
@@ -354,8 +358,10 @@ static void sil_dev_config(struct ata_port *ap, struct ata_device *dev)
}
/* limit requests to 15 sectors */
- if ((ap->flags & SIL_FLAG_MOD15WRITE) && (quirks & SIL_QUIRK_MOD15WRITE)) {
- printk(KERN_INFO "ata%u(%u): applying Seagate errata fix\n",
+ if (slow_down ||
+ ((ap->flags & SIL_FLAG_MOD15WRITE) &&
+ (quirks & SIL_QUIRK_MOD15WRITE))) {
+ printk(KERN_INFO "ata%u(%u): applying Seagate errata fix (mod15write workaround)\n",
ap->id, dev->devno);
ap->host->max_sectors = 15;
ap->host->hostt->max_sectors = 15;