Hello, What you're experiencing looks like the ssd behaving badly after link state transition. I wonder whether the right solution is plugging PHYRDY IRQ for a while after LPM state change. Does the following path make any difference? Thanks. diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 97683e4..684f45d 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -735,8 +735,8 @@ static int ahci_set_lpm(struct ata_link *link, enum ata_lpm_policy policy, sata_link_scr_lpm(link, policy, false); /* turn PHYRDY IRQ back on */ - pp->intr_mask |= PORT_IRQ_PHYRDY; - writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK); + //pp->intr_mask |= PORT_IRQ_PHYRDY; + //writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK); } return 0; -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
