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| author | Hannes Reinecke <hare@suse.de> | 2016-04-25 13:45:55 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2016-05-09 19:36:46 +0300 |
| commit | 856c4663930988118d9f355aad66811dd6df06de (patch) | |
| tree | 5b0d59494d213e6ffdc476bf6e1230c4cc8e444d /include/linux/ata.h | |
| parent | 284b3b77ea883234dadb2cbf97b145c3c30fe4bd (diff) | |
| download | linux-856c4663930988118d9f355aad66811dd6df06de.tar.xz | |
libata: support device-managed ZAC devices
Device-managed ZAC devices just set the zoned capabilities field
in INQUIRY byte 69 (cf ACS-4). This corresponds to the 'zoned'
field in the block device characteristics VPD page.
As this is only defined in SPC-5/SBC-4 we also need to update
the supported SCSI version descriptor.
Reviewed-by: Shaun Tancheff <shaun.tancheff@seagate.com>
Tested-by: Shaun Tancheff <shaun.tancheff@seagate.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux/ata.h')
| -rw-r--r-- | include/linux/ata.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h index e62703201e84..ac1cb9310dea 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -935,6 +935,11 @@ static inline bool ata_id_is_ssd(const u16 *id) return id[ATA_ID_ROT_SPEED] == 0x01; } +static inline u8 ata_id_zoned_cap(const u16 *id) +{ + return (id[ATA_ID_ADDITIONAL_SUPP] & 0x3); +} + static inline bool ata_id_pio_need_iordy(const u16 *id, const u8 pio) { /* CF spec. r4.1 Table 22 says no IORDY on PIO5 and PIO6. */ |