diff options
-rw-r--r-- | drivers/scsi/sata_sil.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c index b017f85e6d6a..17f74d3c10e7 100644 --- a/drivers/scsi/sata_sil.c +++ b/drivers/scsi/sata_sil.c | |||
@@ -231,6 +231,10 @@ MODULE_LICENSE("GPL"); | |||
231 | MODULE_DEVICE_TABLE(pci, sil_pci_tbl); | 231 | MODULE_DEVICE_TABLE(pci, sil_pci_tbl); |
232 | MODULE_VERSION(DRV_VERSION); | 232 | MODULE_VERSION(DRV_VERSION); |
233 | 233 | ||
234 | static int slow_down = 0; | ||
235 | module_param(slow_down, int, 0444); | ||
236 | MODULE_PARM_DESC(slow_down, "Sledgehammer used to work around random problems, by limiting commands to 15 sectors (0=off, 1=on)"); | ||
237 | |||
234 | 238 | ||
235 | static unsigned char sil_get_device_cache_line(struct pci_dev *pdev) | 239 | static unsigned char sil_get_device_cache_line(struct pci_dev *pdev) |
236 | { | 240 | { |
@@ -354,8 +358,10 @@ static void sil_dev_config(struct ata_port *ap, struct ata_device *dev) | |||
354 | } | 358 | } |
355 | 359 | ||
356 | /* limit requests to 15 sectors */ | 360 | /* limit requests to 15 sectors */ |
357 | if ((ap->flags & SIL_FLAG_MOD15WRITE) && (quirks & SIL_QUIRK_MOD15WRITE)) { | 361 | if (slow_down || |
358 | printk(KERN_INFO "ata%u(%u): applying Seagate errata fix\n", | 362 | ((ap->flags & SIL_FLAG_MOD15WRITE) && |
363 | (quirks & SIL_QUIRK_MOD15WRITE))) { | ||
364 | printk(KERN_INFO "ata%u(%u): applying Seagate errata fix (mod15write workaround)\n", | ||
359 | ap->id, dev->devno); | 365 | ap->id, dev->devno); |
360 | ap->host->max_sectors = 15; | 366 | ap->host->max_sectors = 15; |
361 | ap->host->hostt->max_sectors = 15; | 367 | ap->host->hostt->max_sectors = 15; |