Attachment #158345 for bug #229260

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	/* Weird ATAPI devices */
	{ "TORiSAN DVD-ROM DRD-N216", NULL,	ATA_HORKAGE_MAX_SEC_128 },
	{ "TSSTcorpCD/DVDW SH-S162L", NULL,	ATA_HORKAGE_DMA_RW_ONLY },

	/* Devices we expect to fail diagnostics */


{
	struct ata_port *ap = qc->ap;

	/* some drives can only do ATAPI DMA on read/write */
	if (unlikely(qc->dev->horkage & ATA_HORKAGE_DMA_RW_ONLY)) {
		switch (qc->cdb[0]) {
		case READ_10:
		case WRITE_10:
		case READ_12:
		case WRITE_12:
		case READ_6:
		case WRITE_6:
			/* atapi dma maybe ok */
			break;
		default:
			/* turn off atapi dma */
			return 1;
		}
	}

	/* Don't allow DMA if it isn't multiple of 16 bytes.  Quite a
	 * few ATAPI devices choke on such DMA requests.
	 */

Lines 327-332 enum { Link Here

(-)linux-2.6.22/include/linux/libata.h (+1 lines)
327	ATA_HORKAGE_MAX_SEC_128 = (1 << 3), /* Limit max sects to 128 */	327	ATA_HORKAGE_MAX_SEC_128 = (1 << 3), /* Limit max sects to 128 */
328	ATA_HORKAGE_SKIP_PM = (1 << 4), /* Skip PM operations */	328	ATA_HORKAGE_SKIP_PM = (1 << 4), /* Skip PM operations */
329	ATA_HORKAGE_BROKEN_HPA = (1 << 5), /* Broken HPA */	329	ATA_HORKAGE_BROKEN_HPA = (1 << 5), /* Broken HPA */
		330	ATA_HORKAGE_DMA_RW_ONLY = (1 << 6), /* ATAPI DMA for RW only */
330	};	331	};
331		332
332	enum hsm_task_states {	333	enum hsm_task_states {

Return to bug 229260

Lines 3836-3841 static const struct ata_blacklist_entry Link Here

(-)linux-2.6.22/drivers/ata/libata-core.c (+18 lines)
3836		3836
3837	/* Weird ATAPI devices */	3837	/* Weird ATAPI devices */
3838	{ "TORiSAN DVD-ROM DRD-N216", NULL, ATA_HORKAGE_MAX_SEC_128 },	3838	{ "TORiSAN DVD-ROM DRD-N216", NULL, ATA_HORKAGE_MAX_SEC_128 },
		3839	{ "TSSTcorpCD/DVDW SH-S162L", NULL, ATA_HORKAGE_DMA_RW_ONLY },
3839		3840
3840	/* Devices we expect to fail diagnostics */	3841	/* Devices we expect to fail diagnostics */
3841		3842
Lines 4252-4257 int ata_check_atapi_dma(struct ata_queue Link Here
4252	{	4253	{
4253	struct ata_port *ap = qc->ap;	4254	struct ata_port *ap = qc->ap;
4254		4255
		4256	/* some drives can only do ATAPI DMA on read/write */
		4257	if (unlikely(qc->dev->horkage & ATA_HORKAGE_DMA_RW_ONLY)) {
		4258	switch (qc->cdb[0]) {
		4259	case READ_10:
		4260	case WRITE_10:
		4261	case READ_12:
		4262	case WRITE_12:
		4263	case READ_6:
		4264	case WRITE_6:
		4265	/* atapi dma maybe ok */
		4266	break;
		4267	default:
		4268	/* turn off atapi dma */
		4269	return 1;
		4270	}
		4271	}
		4272
4255	/* Don't allow DMA if it isn't multiple of 16 bytes. Quite a	4273	/* Don't allow DMA if it isn't multiple of 16 bytes. Quite a
4256	* few ATAPI devices choke on such DMA requests.	4274	* few ATAPI devices choke on such DMA requests.
4257	*/	4275	*/