diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-05-30 01:17:38 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-05-30 01:17:38 +0200 |
| commit | 932d5649e7402a5d46c0bdd5788b96153416af70 (patch) | |
| tree | d8e6573c8ba24d565af4a2811233934ef65b8cb1 /linux/src | |
| parent | 0bd4a8ed0ea5295bd00de63d33253ad05548d71f (diff) | |
Add LBA48 support to AHCI driver
* linux/dev/drivers/block/ahci.c (port): Extend `capacity' field type to
unsigned long long. Add `lba48' field. Make `identify' field unsigned.
(ahci_do_port_request): When `lba48' is true, use WIN_READDMA_EXT and
WIN_WRITEDMA_EXT commands.
(ahci_probe_port): Test lba48 flag, read capacity and set `lba48'
accordingly. Display size in GiB above 10GiB.
* linux/src/include/linux/hdreg.h (WIN_READDMA_EXT, WIN_WRITEDMA_EXT): New
macros
(hd_driveid): Add `command_set_2' and lba_capacity_2' fields.
Diffstat (limited to 'linux/src')
| -rw-r--r-- | linux/src/include/linux/hdreg.h | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/linux/src/include/linux/hdreg.h b/linux/src/include/linux/hdreg.h index e223480..4a388c5 100644 --- a/linux/src/include/linux/hdreg.h +++ b/linux/src/include/linux/hdreg.h @@ -62,6 +62,8 @@ #define WIN_SETFEATURES 0xEF /* set special drive features */ #define WIN_READDMA 0xc8 /* read sectors using DMA transfers */ #define WIN_WRITEDMA 0xca /* write sectors using DMA transfers */ +#define WIN_READDMA_EXT 0x25 /* read sectors using LBA48 DMA transfers */ +#define WIN_WRITEDMA_EXT 0x35 /* write sectors using LBA48 DMA transfers */ /* Additional drive command codes used by ATAPI devices. */ #define WIN_PIDENTIFY 0xA1 /* identify ATAPI device */ @@ -168,7 +170,7 @@ struct hd_driveid { unsigned short word80; unsigned short word81; unsigned short command_sets; /* bits 0:Smart 1:Security 2:Removable 3:PM */ - unsigned short word83; /* bits 14:Smart Enabled 13:0 zero */ + unsigned short command_set_2; /* bits 14:Smart Enabled 13:0 zero */ unsigned short word84; unsigned short word85; unsigned short word86; @@ -185,10 +187,7 @@ struct hd_driveid { unsigned short word97; /* reserved (word 97) */ unsigned short word98; /* reserved (word 98) */ unsigned short word99; /* reserved (word 99) */ - unsigned short word100; /* reserved (word 100) */ - unsigned short word101; /* reserved (word 101) */ - unsigned short word102; /* reserved (word 102) */ - unsigned short word103; /* reserved (word 103) */ + unsigned long long lba_capacity_2; /* 48-bit total number of sectors */ unsigned short word104; /* reserved (word 104) */ unsigned short word105; /* reserved (word 105) */ unsigned short word106; /* reserved (word 106) */ |