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libata: detect Device Attention support
Add a new flag ATA_DFLAG_DA to indicate that device supports "Device Attention". Acked-by: Aaron Lu <aaron.lu@amd.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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@ -2374,6 +2374,9 @@ int ata_dev_configure(struct ata_device *dev)
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dma_dir_string = ", DMADIR";
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}
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if (ata_id_has_da(dev->id))
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dev->flags |= ATA_DFLAG_DA;
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/* print device info to dmesg */
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if (ata_msg_drv(ap) && print_info)
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ata_dev_info(dev,
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@ -578,6 +578,7 @@ static inline int ata_is_data(u8 prot)
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((u64) (id)[(n) + 0]) )
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#define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20)
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#define ata_id_has_da(id) ((id)[77] & (1 << 4))
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static inline bool ata_id_has_hipm(const u16 *id)
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{
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@ -161,6 +161,8 @@ enum {
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ATA_DFLAG_DETACH = (1 << 24),
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ATA_DFLAG_DETACHED = (1 << 25),
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ATA_DFLAG_DA = (1 << 26), /* device supports Device Attention */
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ATA_DEV_UNKNOWN = 0, /* unknown device */
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ATA_DEV_ATA = 1, /* ATA device */
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ATA_DEV_ATA_UNSUP = 2, /* ATA device (unsupported) */
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