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Commit f4b15fef authored by Alan Cox's avatar Alan Cox Committed by Jeff Garzik
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[PATCH] Update libata DMA blacklist to cover versions, and resync with IDE layer 



Not much to say here except that some drives have fixed and bad firmware

Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 09c7ad79

drivers/scsi/libata-core.c

+59 −35
Original line number Diff line number Diff line
@@ -2563,48 +2563,72 @@ int ata_dev_revalidate(struct ata_port *ap, struct ata_device *dev, 
}



static const char * const ata_dma_blacklist [] = {

	"WDC AC11000H",

	"WDC AC22100H",

	"WDC AC32500H",

	"WDC AC33100H",

	"WDC AC31600H",

	"WDC AC32100H",

	"WDC AC23200L",

	"Compaq CRD-8241B",

	"CRD-8400B",

	"CRD-8480B",

	"CRD-8482B",

 	"CRD-84",

	"SanDisk SDP3B",

	"SanDisk SDP3B-64",

	"SANYO CD-ROM CRD",

	"HITACHI CDR-8",

	"HITACHI CDR-8335",

	"HITACHI CDR-8435",

	"Toshiba CD-ROM XM-6202B",

	"TOSHIBA CD-ROM XM-1702BC",

	"CD-532E-A",

	"E-IDE CD-ROM CR-840",

	"CD-ROM Drive/F5A",

	"WPI CDD-820",

	"SAMSUNG CD-ROM SC-148C",

	"SAMSUNG CD-ROM SC",

	"SanDisk SDP3B-64",

	"ATAPI CD-ROM DRIVE 40X MAXIMUM",

	"_NEC DV5800A",

	"WDC AC11000H", NULL,

	"WDC AC22100H", NULL,

	"WDC AC32500H", NULL,

	"WDC AC33100H", NULL,

	"WDC AC31600H", NULL,

	"WDC AC32100H", "24.09P07",

	"WDC AC23200L", "21.10N21",

	"Compaq CRD-8241B",  NULL,

	"CRD-8400B", NULL,

	"CRD-8480B", NULL,

	"CRD-8482B", NULL,

 	"CRD-84", NULL,

	"SanDisk SDP3B", NULL,

	"SanDisk SDP3B-64", NULL,

	"SANYO CD-ROM CRD", NULL,

	"HITACHI CDR-8", NULL,

	"HITACHI CDR-8335", NULL, 

	"HITACHI CDR-8435", NULL,

	"Toshiba CD-ROM XM-6202B", NULL, 

	"TOSHIBA CD-ROM XM-1702BC", NULL, 

	"CD-532E-A", NULL, 

	"E-IDE CD-ROM CR-840", NULL, 

	"CD-ROM Drive/F5A", NULL, 

	"WPI CDD-820", NULL, 

	"SAMSUNG CD-ROM SC-148C", NULL,

	"SAMSUNG CD-ROM SC", NULL, 

	"SanDisk SDP3B-64", NULL,

	"ATAPI CD-ROM DRIVE 40X MAXIMUM",NULL,

	"_NEC DV5800A", NULL,

	"SAMSUNG CD-ROM SN-124", "N001"

};

 

static int ata_strim(char *s, size_t len)

{

	len = strnlen(s, len);



	/* ATAPI specifies that empty space is blank-filled; remove blanks */

	while ((len > 0) && (s[len - 1] == ' ')) {

		len--;

		s[len] = 0;

	}

	return len;

}



static int ata_dma_blacklisted(const struct ata_device *dev)

{

	unsigned char model_num[41];

	unsigned char model_num[40];

	unsigned char model_rev[16];

	unsigned int nlen, rlen;

	int i;



	ata_id_c_string(dev->id, model_num, ATA_ID_PROD_OFS, sizeof(model_num));

	ata_id_string(dev->id, model_num, ATA_ID_PROD_OFS,

			  sizeof(model_num));

	ata_id_string(dev->id, model_rev, ATA_ID_FW_REV_OFS,

			  sizeof(model_rev));

	nlen = ata_strim(model_num, sizeof(model_num));

	rlen = ata_strim(model_rev, sizeof(model_rev));



	for (i = 0; i < ARRAY_SIZE(ata_dma_blacklist); i++)

		if (!strcmp(ata_dma_blacklist[i], model_num))

	for (i = 0; i < ARRAY_SIZE(ata_dma_blacklist); i += 2) {

		if (!strncmp(ata_dma_blacklist[i], model_num, nlen)) {

			if (ata_dma_blacklist[i+1] == NULL)

				return 1;



			if (!strncmp(ata_dma_blacklist[i], model_rev, rlen))

				return 1;

		}

	}

	return 0;

}