GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

libata: support host-aware and host-managed ZAC devices

Browse source 
Byte 69 bits 0:1 in the IDENTIFY DEVICE data indicate a
host-aware ZAC device.
Host-managed ZAC devices have their own individual signature,
and to not set the bits in the IDENTIFY DEVICE data.
And whenever we detect a ZAC-compatible device we should
be displaying the zoned block characteristics VPD page.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Hannes Reinecke 2016-04-25 12:45:56 +02:00 • committed by Tejun Heo
parent 856c466393
commit 6d1003ae8d
4 changed files with 138 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

7
include/linux/libata.h
View file

@ -181,6 +181,7 @@ enum {
ATA_DFLAG_DEVSLP = (1 << 27), /* device supports Device Sleep */
ATA_DFLAG_ACPI_DISABLED = (1 << 28), /* ACPI for the device is disabled */
ATA_DFLAG_D_SENSE = (1 << 29), /* Descriptor sense requested */
ATA_DFLAG_ZAC = (1 << 30), /* ZAC device */
ATA_DEV_UNKNOWN = 0, /* unknown device */
ATA_DEV_ATA = 1, /* ATA device */
@ -731,6 +732,12 @@ struct ata_device {
u8 ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_SIZE];
u8 ncq_non_data_cmds[ATA_LOG_NCQ_NON_DATA_SIZE];
/* ZAC zone configuration */
u32 zac_zoned_cap;
u32 zac_zones_optimal_open;
u32 zac_zones_optimal_nonseq;
u32 zac_zones_max_open;
/* error history */
int spdn_cnt;
/* ering is CLEAR_END, read comment above CLEAR_END */