Commit 2c33bbda authored by Damien Le Moal's avatar Damien Le Moal
Browse files

ata: libata-core: Allow forcing most horkage flags 



To facilitate debugging of drive issues in the field without kernel
changes (e.g. temporary test patches), add an entry for most horkage
flags in the force_tbl array to allow controlling these horkage
settings with the libata.force kernel boot parameter.

Signed-off-by: default avatarDamien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: default avatarSergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: default avatarHannes Reinecke <hare@suse.de>
parent 3af9ca4d

drivers/ata/libata-core.c

+20 −2
Original line number Diff line number Diff line
@@ -6187,9 +6187,27 @@ static const struct ata_force_param force_tbl[] __initconst = { 
	force_horkage_onoff(ncqtrim,	ATA_HORKAGE_NO_NCQ_TRIM),

	force_horkage_onoff(ncqati,	ATA_HORKAGE_NO_NCQ_ON_ATI),



	force_horkage_on(dump_id,	ATA_HORKAGE_DUMP_ID),

	force_horkage_onoff(trim,	ATA_HORKAGE_NOTRIM),

	force_horkage_on(trim_zero,	ATA_HORKAGE_ZERO_AFTER_TRIM),

	force_horkage_on(max_trim_128m, ATA_HORKAGE_MAX_TRIM_128M),



	force_horkage_onoff(dma,	ATA_HORKAGE_NODMA),

	force_horkage_on(atapi_dmadir,	ATA_HORKAGE_ATAPI_DMADIR),

	force_horkage_on(disable,	ATA_HORKAGE_DISABLE)

	force_horkage_on(atapi_mod16_dma, ATA_HORKAGE_ATAPI_MOD16_DMA),



	force_horkage_onoff(dmalog,	ATA_HORKAGE_NO_DMA_LOG),

	force_horkage_onoff(iddevlog,	ATA_HORKAGE_NO_ID_DEV_LOG),

	force_horkage_onoff(logdir,	ATA_HORKAGE_NO_LOG_DIR),



	force_horkage_on(max_sec_128,	ATA_HORKAGE_MAX_SEC_128),

	force_horkage_on(max_sec_1024,	ATA_HORKAGE_MAX_SEC_1024),

	force_horkage_on(max_sec_lba48,	ATA_HORKAGE_MAX_SEC_LBA48),



	force_horkage_onoff(lpm,	ATA_HORKAGE_NOLPM),

	force_horkage_onoff(setxfer,	ATA_HORKAGE_NOSETXFER),

	force_horkage_on(dump_id,	ATA_HORKAGE_DUMP_ID),



	force_horkage_on(disable,	ATA_HORKAGE_DISABLE),

};



static int __init ata_parse_force_one(char **cur,