ata: libata: Allow more quirks

We have currently used up 30 out of the 32-bits in the struct ata_device
struct member quirks. Thus, it is only possible to add two more quirks.

Change the struct ata_device struct member quirks from an unsigned int to
an u64.

Doing this core level change now, will make it easier for us now, as we
will not need to also do core level changes once the final two bits are
used as well.

Signed-off-by: Niklas Cassel <cassel@kernel.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>

Author: floatious

drivers/ata/libata-core.c

@@ -76,8 +76,8 @@ static unsigned int ata_dev_init_params(struct ata_device *dev,
 					u16 heads, u16 sectors);
 static unsigned int ata_dev_set_xfermode(struct ata_device *dev);
 static void ata_dev_xfermask(struct ata_device *dev);
-static unsigned int ata_dev_quirks(const struct ata_device *dev);
-static u64 ata_dev_get_quirk_value(struct ata_device *dev, unsigned int quirk);
+static u64 ata_dev_quirks(const struct ata_device *dev);
+static u64 ata_dev_get_quirk_value(struct ata_device *dev, u64 quirk);
 
 static DEFINE_IDA(ata_ida);
 
@@ -88,8 +88,8 @@ struct ata_force_param {
 	u8		cbl;
 	u8		spd_limit;
 	unsigned int	xfer_mask;
-	unsigned int	quirk_on;
-	unsigned int	quirk_off;
+	u64		quirk_on;
+	u64		quirk_off;
 	unsigned int	pflags_on;
 	u16		lflags_on;
 	u16		lflags_off;
@@ -4088,7 +4088,7 @@ static const struct ata_dev_quirk_value __ata_dev_max_sec_quirks[] = {
 struct ata_dev_quirks_entry {
 	const char *model_num;
 	const char *model_rev;
-	unsigned int quirks;
+	u64 quirks;
 };
 
 static const struct ata_dev_quirks_entry __ata_dev_quirks[] = {
@@ -4377,14 +4377,14 @@ static const struct ata_dev_quirks_entry __ata_dev_quirks[] = {
 	{ }
 };
 
-static unsigned int ata_dev_quirks(const struct ata_device *dev)
+static u64 ata_dev_quirks(const struct ata_device *dev)
 {
 	unsigned char model_num[ATA_ID_PROD_LEN + 1];
 	unsigned char model_rev[ATA_ID_FW_REV_LEN + 1];
 	const struct ata_dev_quirks_entry *ad = __ata_dev_quirks;
 
-	/* dev->quirks is an unsigned int. */
-	BUILD_BUG_ON(__ATA_QUIRK_MAX > 32);
+	/* dev->quirks is an u64. */
+	BUILD_BUG_ON(__ATA_QUIRK_MAX > 64);
 
 	ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num));
 	ata_id_c_string(dev->id, model_rev, ATA_ID_FW_REV, sizeof(model_rev));
@@ -4435,7 +4435,7 @@ static u64 ata_dev_get_max_sec_quirk_value(struct ata_device *dev)
 	return val;
 }
 
-static u64 ata_dev_get_quirk_value(struct ata_device *dev, unsigned int quirk)
+static u64 ata_dev_get_quirk_value(struct ata_device *dev, u64 quirk)
 {
 	if (quirk == ATA_QUIRK_MAX_SEC)
 		return ata_dev_get_max_sec_quirk_value(dev);

include/linux/libata.h

@@ -46,7 +46,7 @@
 
 /*
  * Quirk flags bits.
- * ata_device->quirks is an unsigned int, so __ATA_QUIRK_MAX must not exceed 32.
+ * ata_device->quirks is an u64, so __ATA_QUIRK_MAX must not exceed 64.
  */
 enum ata_quirks {
 	__ATA_QUIRK_DIAGNOSTIC,		/* Failed boot diag */
@@ -89,36 +89,36 @@ enum ata_quirks {
  * Some quirks may be drive/controller pair dependent.
  */
 enum {
-	ATA_QUIRK_DIAGNOSTIC		= (1U << __ATA_QUIRK_DIAGNOSTIC),
-	ATA_QUIRK_NODMA			= (1U << __ATA_QUIRK_NODMA),
-	ATA_QUIRK_NONCQ			= (1U << __ATA_QUIRK_NONCQ),
-	ATA_QUIRK_BROKEN_HPA		= (1U << __ATA_QUIRK_BROKEN_HPA),
-	ATA_QUIRK_DISABLE		= (1U << __ATA_QUIRK_DISABLE),
-	ATA_QUIRK_HPA_SIZE		= (1U << __ATA_QUIRK_HPA_SIZE),
-	ATA_QUIRK_IVB			= (1U << __ATA_QUIRK_IVB),
-	ATA_QUIRK_STUCK_ERR		= (1U << __ATA_QUIRK_STUCK_ERR),
-	ATA_QUIRK_BRIDGE_OK		= (1U << __ATA_QUIRK_BRIDGE_OK),
-	ATA_QUIRK_ATAPI_MOD16_DMA	= (1U << __ATA_QUIRK_ATAPI_MOD16_DMA),
-	ATA_QUIRK_FIRMWARE_WARN		= (1U << __ATA_QUIRK_FIRMWARE_WARN),
-	ATA_QUIRK_1_5_GBPS		= (1U << __ATA_QUIRK_1_5_GBPS),
-	ATA_QUIRK_NOSETXFER		= (1U << __ATA_QUIRK_NOSETXFER),
-	ATA_QUIRK_BROKEN_FPDMA_AA	= (1U << __ATA_QUIRK_BROKEN_FPDMA_AA),
-	ATA_QUIRK_DUMP_ID		= (1U << __ATA_QUIRK_DUMP_ID),
-	ATA_QUIRK_MAX_SEC_LBA48		= (1U << __ATA_QUIRK_MAX_SEC_LBA48),
-	ATA_QUIRK_ATAPI_DMADIR		= (1U << __ATA_QUIRK_ATAPI_DMADIR),
-	ATA_QUIRK_NO_NCQ_TRIM		= (1U << __ATA_QUIRK_NO_NCQ_TRIM),
-	ATA_QUIRK_NOLPM			= (1U << __ATA_QUIRK_NOLPM),
-	ATA_QUIRK_WD_BROKEN_LPM		= (1U << __ATA_QUIRK_WD_BROKEN_LPM),
-	ATA_QUIRK_ZERO_AFTER_TRIM	= (1U << __ATA_QUIRK_ZERO_AFTER_TRIM),
-	ATA_QUIRK_NO_DMA_LOG		= (1U << __ATA_QUIRK_NO_DMA_LOG),
-	ATA_QUIRK_NOTRIM		= (1U << __ATA_QUIRK_NOTRIM),
-	ATA_QUIRK_MAX_SEC		= (1U << __ATA_QUIRK_MAX_SEC),
-	ATA_QUIRK_MAX_TRIM_128M		= (1U << __ATA_QUIRK_MAX_TRIM_128M),
-	ATA_QUIRK_NO_NCQ_ON_ATI		= (1U << __ATA_QUIRK_NO_NCQ_ON_ATI),
-	ATA_QUIRK_NO_LPM_ON_ATI		= (1U << __ATA_QUIRK_NO_LPM_ON_ATI),
-	ATA_QUIRK_NO_ID_DEV_LOG		= (1U << __ATA_QUIRK_NO_ID_DEV_LOG),
-	ATA_QUIRK_NO_LOG_DIR		= (1U << __ATA_QUIRK_NO_LOG_DIR),
-	ATA_QUIRK_NO_FUA		= (1U << __ATA_QUIRK_NO_FUA),
+	ATA_QUIRK_DIAGNOSTIC		= BIT_ULL(__ATA_QUIRK_DIAGNOSTIC),
+	ATA_QUIRK_NODMA			= BIT_ULL(__ATA_QUIRK_NODMA),
+	ATA_QUIRK_NONCQ			= BIT_ULL(__ATA_QUIRK_NONCQ),
+	ATA_QUIRK_BROKEN_HPA		= BIT_ULL(__ATA_QUIRK_BROKEN_HPA),
+	ATA_QUIRK_DISABLE		= BIT_ULL(__ATA_QUIRK_DISABLE),
+	ATA_QUIRK_HPA_SIZE		= BIT_ULL(__ATA_QUIRK_HPA_SIZE),
+	ATA_QUIRK_IVB			= BIT_ULL(__ATA_QUIRK_IVB),
+	ATA_QUIRK_STUCK_ERR		= BIT_ULL(__ATA_QUIRK_STUCK_ERR),
+	ATA_QUIRK_BRIDGE_OK		= BIT_ULL(__ATA_QUIRK_BRIDGE_OK),
+	ATA_QUIRK_ATAPI_MOD16_DMA	= BIT_ULL(__ATA_QUIRK_ATAPI_MOD16_DMA),
+	ATA_QUIRK_FIRMWARE_WARN		= BIT_ULL(__ATA_QUIRK_FIRMWARE_WARN),
+	ATA_QUIRK_1_5_GBPS		= BIT_ULL(__ATA_QUIRK_1_5_GBPS),
+	ATA_QUIRK_NOSETXFER		= BIT_ULL(__ATA_QUIRK_NOSETXFER),
+	ATA_QUIRK_BROKEN_FPDMA_AA	= BIT_ULL(__ATA_QUIRK_BROKEN_FPDMA_AA),
+	ATA_QUIRK_DUMP_ID		= BIT_ULL(__ATA_QUIRK_DUMP_ID),
+	ATA_QUIRK_MAX_SEC_LBA48		= BIT_ULL(__ATA_QUIRK_MAX_SEC_LBA48),
+	ATA_QUIRK_ATAPI_DMADIR		= BIT_ULL(__ATA_QUIRK_ATAPI_DMADIR),
+	ATA_QUIRK_NO_NCQ_TRIM		= BIT_ULL(__ATA_QUIRK_NO_NCQ_TRIM),
+	ATA_QUIRK_NOLPM			= BIT_ULL(__ATA_QUIRK_NOLPM),
+	ATA_QUIRK_WD_BROKEN_LPM		= BIT_ULL(__ATA_QUIRK_WD_BROKEN_LPM),
+	ATA_QUIRK_ZERO_AFTER_TRIM	= BIT_ULL(__ATA_QUIRK_ZERO_AFTER_TRIM),
+	ATA_QUIRK_NO_DMA_LOG		= BIT_ULL(__ATA_QUIRK_NO_DMA_LOG),
+	ATA_QUIRK_NOTRIM		= BIT_ULL(__ATA_QUIRK_NOTRIM),
+	ATA_QUIRK_MAX_SEC		= BIT_ULL(__ATA_QUIRK_MAX_SEC),
+	ATA_QUIRK_MAX_TRIM_128M		= BIT_ULL(__ATA_QUIRK_MAX_TRIM_128M),
+	ATA_QUIRK_NO_NCQ_ON_ATI		= BIT_ULL(__ATA_QUIRK_NO_NCQ_ON_ATI),
+	ATA_QUIRK_NO_LPM_ON_ATI		= BIT_ULL(__ATA_QUIRK_NO_LPM_ON_ATI),
+	ATA_QUIRK_NO_ID_DEV_LOG		= BIT_ULL(__ATA_QUIRK_NO_ID_DEV_LOG),
+	ATA_QUIRK_NO_LOG_DIR		= BIT_ULL(__ATA_QUIRK_NO_LOG_DIR),
+	ATA_QUIRK_NO_FUA		= BIT_ULL(__ATA_QUIRK_NO_FUA),
 };
 
 enum {
@@ -719,7 +719,7 @@ struct ata_cdl {
 struct ata_device {
 	struct ata_link		*link;
 	unsigned int		devno;		/* 0 or 1 */
-	unsigned int		quirks;		/* List of broken features */
+	u64			quirks;		/* List of broken features */
 	unsigned long		flags;		/* ATA_DFLAG_xxx */
 	struct scsi_device	*sdev;		/* attached SCSI device */
 	void			*private_data;