Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 274 insertions, 0 deletions

diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
new file mode 100644
index 000000000..b59136c41
--- /dev/null
+++ b/drivers/scsi/sd.h
@@ -0,0 +1,274 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SCSI_DISK_H
+#define _SCSI_DISK_H
+
+/*
+ * More than enough for everybody ;)  The huge number of majors
+ * is a leftover from 16bit dev_t days, we don't really need that
+ * much numberspace.
+ */
+#define SD_MAJORS	16
+
+/*
+ * Time out in seconds for disks and Magneto-opticals (which are slower).
+ */
+#define SD_TIMEOUT		(30 * HZ)
+#define SD_MOD_TIMEOUT		(75 * HZ)
+/*
+ * Flush timeout is a multiplier over the standard device timeout which is
+ * user modifiable via sysfs but initially set to SD_TIMEOUT
+ */
+#define SD_FLUSH_TIMEOUT_MULTIPLIER	2
+#define SD_WRITE_SAME_TIMEOUT	(120 * HZ)
+
+/*
+ * Number of allowed retries
+ */
+#define SD_MAX_RETRIES		5
+#define SD_PASSTHROUGH_RETRIES	1
+#define SD_MAX_MEDIUM_TIMEOUTS	2
+
+/*
+ * Size of the initial data buffer for mode and read capacity data
+ */
+#define SD_BUF_SIZE		512
+
+/*
+ * Number of sectors at the end of the device to avoid multi-sector
+ * accesses to in the case of last_sector_bug
+ */
+#define SD_LAST_BUGGY_SECTORS	8
+
+enum {
+	SD_EXT_CDB_SIZE = 32,	/* Extended CDB size */
+	SD_MEMPOOL_SIZE = 2,	/* CDB pool size */
+};
+
+enum {
+	SD_DEF_XFER_BLOCKS = 0xffff,
+	SD_MAX_XFER_BLOCKS = 0xffffffff,
+	SD_MAX_WS10_BLOCKS = 0xffff,
+	SD_MAX_WS16_BLOCKS = 0x7fffff,
+};
+
+enum {
+	SD_LBP_FULL = 0,	/* Full logical block provisioning */
+	SD_LBP_UNMAP,		/* Use UNMAP command */
+	SD_LBP_WS16,		/* Use WRITE SAME(16) with UNMAP bit */
+	SD_LBP_WS10,		/* Use WRITE SAME(10) with UNMAP bit */
+	SD_LBP_ZERO,		/* Use WRITE SAME(10) with zero payload */
+	SD_LBP_DISABLE,		/* Discard disabled due to failed cmd */
+};
+
+enum {
+	SD_ZERO_WRITE = 0,	/* Use WRITE(10/16) command */
+	SD_ZERO_WS,		/* Use WRITE SAME(10/16) command */
+	SD_ZERO_WS16_UNMAP,	/* Use WRITE SAME(16) with UNMAP */
+	SD_ZERO_WS10_UNMAP,	/* Use WRITE SAME(10) with UNMAP */
+};
+
+struct scsi_disk {
+	struct scsi_driver *driver;	/* always &sd_template */
+	struct scsi_device *device;
+	struct device	dev;
+	struct gendisk	*disk;
+	struct opal_dev *opal_dev;
+#ifdef CONFIG_BLK_DEV_ZONED
+	u32		nr_zones;
+	u32		rev_nr_zones;
+	u32		zone_blocks;
+	u32		rev_zone_blocks;
+	u32		zones_optimal_open;
+	u32		zones_optimal_nonseq;
+	u32		zones_max_open;
+	u32		*zones_wp_offset;
+	spinlock_t	zones_wp_offset_lock;
+	u32		*rev_wp_offset;
+	struct mutex	rev_mutex;
+	struct work_struct zone_wp_offset_work;
+	char		*zone_wp_update_buf;
+#endif
+	atomic_t	openers;
+	sector_t	capacity;	/* size in logical blocks */
+	int		max_retries;
+	u32		max_xfer_blocks;
+	u32		opt_xfer_blocks;
+	u32		max_ws_blocks;
+	u32		max_unmap_blocks;
+	u32		unmap_granularity;
+	u32		unmap_alignment;
+	u32		index;
+	unsigned int	physical_block_size;
+	unsigned int	max_medium_access_timeouts;
+	unsigned int	medium_access_timed_out;
+	u8		media_present;
+	u8		write_prot;
+	u8		protection_type;/* Data Integrity Field */
+	u8		provisioning_mode;
+	u8		zeroing_mode;
+	unsigned	ATO : 1;	/* state of disk ATO bit */
+	unsigned	cache_override : 1; /* temp override of WCE,RCD */
+	unsigned	WCE : 1;	/* state of disk WCE bit */
+	unsigned	RCD : 1;	/* state of disk RCD bit, unused */
+	unsigned	DPOFUA : 1;	/* state of disk DPOFUA bit */
+	unsigned	first_scan : 1;
+	unsigned	lbpme : 1;
+	unsigned	lbprz : 1;
+	unsigned	lbpu : 1;
+	unsigned	lbpws : 1;
+	unsigned	lbpws10 : 1;
+	unsigned	lbpvpd : 1;
+	unsigned	ws10 : 1;
+	unsigned	ws16 : 1;
+	unsigned	rc_basis: 2;
+	unsigned	zoned: 2;
+	unsigned	urswrz : 1;
+	unsigned	security : 1;
+	unsigned	ignore_medium_access_errors : 1;
+};
+#define to_scsi_disk(obj) container_of(obj,struct scsi_disk,dev)
+
+static inline struct scsi_disk *scsi_disk(struct gendisk *disk)
+{
+	return container_of(disk->private_data, struct scsi_disk, driver);
+}
+
+#define sd_printk(prefix, sdsk, fmt, a...)				\
+        (sdsk)->disk ?							\
+	      sdev_prefix_printk(prefix, (sdsk)->device,		\
+				 (sdsk)->disk->disk_name, fmt, ##a) :	\
+	      sdev_printk(prefix, (sdsk)->device, fmt, ##a)
+
+#define sd_first_printk(prefix, sdsk, fmt, a...)			\
+	do {								\
+		if ((sdsk)->first_scan)					\
+			sd_printk(prefix, sdsk, fmt, ##a);		\
+	} while (0)
+
+static inline int scsi_medium_access_command(struct scsi_cmnd *scmd)
+{
+	switch (scmd->cmnd[0]) {
+	case READ_6:
+	case READ_10:
+	case READ_12:
+	case READ_16:
+	case SYNCHRONIZE_CACHE:
+	case VERIFY:
+	case VERIFY_12:
+	case VERIFY_16:
+	case WRITE_6:
+	case WRITE_10:
+	case WRITE_12:
+	case WRITE_16:
+	case WRITE_SAME:
+	case WRITE_SAME_16:
+	case UNMAP:
+		return 1;
+	case VARIABLE_LENGTH_CMD:
+		switch (scmd->cmnd[9]) {
+		case READ_32:
+		case VERIFY_32:
+		case WRITE_32:
+		case WRITE_SAME_32:
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static inline sector_t logical_to_sectors(struct scsi_device *sdev, sector_t blocks)
+{
+	return blocks << (ilog2(sdev->sector_size) - 9);
+}
+
+static inline unsigned int logical_to_bytes(struct scsi_device *sdev, sector_t blocks)
+{
+	return blocks * sdev->sector_size;
+}
+
+static inline sector_t bytes_to_logical(struct scsi_device *sdev, unsigned int bytes)
+{
+	return bytes >> ilog2(sdev->sector_size);
+}
+
+static inline sector_t sectors_to_logical(struct scsi_device *sdev, sector_t sector)
+{
+	return sector >> (ilog2(sdev->sector_size) - 9);
+}
+
+#ifdef CONFIG_BLK_DEV_INTEGRITY
+
+extern void sd_dif_config_host(struct scsi_disk *);
+
+#else /* CONFIG_BLK_DEV_INTEGRITY */
+
+static inline void sd_dif_config_host(struct scsi_disk *disk)
+{
+}
+
+#endif /* CONFIG_BLK_DEV_INTEGRITY */
+
+static inline int sd_is_zoned(struct scsi_disk *sdkp)
+{
+	return sdkp->zoned == 1 || sdkp->device->type == TYPE_ZBC;
+}
+
+#ifdef CONFIG_BLK_DEV_ZONED
+
+void sd_zbc_release_disk(struct scsi_disk *sdkp);
+int sd_zbc_read_zones(struct scsi_disk *sdkp, unsigned char *buffer);
+int sd_zbc_revalidate_zones(struct scsi_disk *sdkp);
+blk_status_t sd_zbc_setup_zone_mgmt_cmnd(struct scsi_cmnd *cmd,
+					 unsigned char op, bool all);
+unsigned int sd_zbc_complete(struct scsi_cmnd *cmd, unsigned int good_bytes,
+			     struct scsi_sense_hdr *sshdr);
+int sd_zbc_report_zones(struct gendisk *disk, sector_t sector,
+		unsigned int nr_zones, report_zones_cb cb, void *data);
+
+blk_status_t sd_zbc_prepare_zone_append(struct scsi_cmnd *cmd, sector_t *lba,
+				        unsigned int nr_blocks);
+
+#else /* CONFIG_BLK_DEV_ZONED */
+
+static inline void sd_zbc_release_disk(struct scsi_disk *sdkp) {}
+
+static inline int sd_zbc_read_zones(struct scsi_disk *sdkp,
+				    unsigned char *buf)
+{
+	return 0;
+}
+
+static inline int sd_zbc_revalidate_zones(struct scsi_disk *sdkp)
+{
+	return 0;
+}
+
+static inline blk_status_t sd_zbc_setup_zone_mgmt_cmnd(struct scsi_cmnd *cmd,
+						       unsigned char op,
+						       bool all)
+{
+	return BLK_STS_TARGET;
+}
+
+static inline unsigned int sd_zbc_complete(struct scsi_cmnd *cmd,
+			unsigned int good_bytes, struct scsi_sense_hdr *sshdr)
+{
+	return good_bytes;
+}
+
+static inline blk_status_t sd_zbc_prepare_zone_append(struct scsi_cmnd *cmd,
+						      sector_t *lba,
+						      unsigned int nr_blocks)
+{
+	return BLK_STS_TARGET;
+}
+
+#define sd_zbc_report_zones NULL
+
+#endif /* CONFIG_BLK_DEV_ZONED */
+
+void sd_print_sense_hdr(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr);
+void sd_print_result(const struct scsi_disk *sdkp, const char *msg, int result);
+
+#endif /* _SCSI_DISK_H */