提交 b481b4ec 编写于 作者: L Linus Torvalds

Merge branch 'upstream-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev

......@@ -509,6 +509,12 @@ static const struct mv_hw_ops mv6xxx_ops = {
.reset_bus = mv_reset_pci_bus,
};
/*
* module options
*/
static int msi; /* Use PCI msi; either zero (off, default) or non-zero */
/*
* Functions
*/
......@@ -2191,7 +2197,7 @@ static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
}
/* Enable interrupts */
if (pci_enable_msi(pdev) == 0) {
if (msi && pci_enable_msi(pdev) == 0) {
hpriv->hp_flags |= MV_HP_FLAG_MSI;
} else {
pci_intx(pdev, 1);
......@@ -2246,5 +2252,8 @@ MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, mv_pci_tbl);
MODULE_VERSION(DRV_VERSION);
module_param(msi, int, 0444);
MODULE_PARM_DESC(msi, "Enable use of PCI MSI (0=off, 1=on)");
module_init(mv_init);
module_exit(mv_exit);
......@@ -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;
......
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