diff options
Diffstat (limited to 'drivers/ata/ahci.c')
| -rw-r--r-- | drivers/ata/ahci.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index cf3404467ce..9f3c591c721 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1356,27 +1356,17 @@ static void ahci_port_intr(struct ata_port *ap) } if (status & PORT_IRQ_SDB_FIS) { - /* - * if this is an ATAPI device with AN turned on, - * then we should interrogate the device to - * determine the cause of the interrupt - * - * for AN - this we should check the SDB FIS - * and find the I and N bits set + /* If the 'N' bit in word 0 of the FIS is set, we just + * received asynchronous notification. Tell libata + * about it. Note that as the SDB FIS itself is + * accessible, SNotification can be emulated by the + * driver but don't bother for the time being. */ const __le32 *f = pp->rx_fis + RX_FIS_SDB; u32 f0 = le32_to_cpu(f[0]); - /* check the 'N' bit in word 0 of the FIS */ - if (f0 & (1 << 15)) { - int port_addr = ((f0 & 0x00000f00) >> 8); - struct ata_device *adev; - if (port_addr < ATA_MAX_DEVICES) { - adev = &ap->link.device[port_addr]; - if (adev->flags & ATA_DFLAG_AN) - ata_scsi_media_change_notify(adev); - } - } + if (f0 & (1 << 15)) + sata_async_notification(ap); } if (ap->link.sactive) |