*/
#define SD_MAJORS 16
-/*
- * This is limited by the naming scheme enforced in sd_probe,
- * add another character to it if you really need more disks.
- */
-#define SD_MAX_DISKS (((26 * 26) + 26 + 1) * 26)
-
/*
* Time out in seconds for disks and Magneto-opticals (which are slower).
*/
#define SD_TIMEOUT (30 * HZ)
#define SD_MOD_TIMEOUT (75 * HZ)
+#define SD_FLUSH_TIMEOUT (60 * 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
SD_MEMPOOL_SIZE = 2, /* CDB pool size */
};
+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 */
+};
+
struct scsi_disk {
struct scsi_driver *driver; /* always &sd_template */
struct scsi_device *device;
struct device dev;
struct gendisk *disk;
- unsigned int openers; /* protected by BKL for now, yuck */
+ atomic_t openers;
sector_t capacity; /* size in 512-byte sectors */
+ u32 max_ws_blocks;
+ u32 max_unmap_blocks;
+ u32 unmap_granularity;
+ u32 unmap_alignment;
u32 index;
- unsigned short hw_sector_size;
+ 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 */
- unsigned previous_state : 1;
+ u8 provisioning_mode;
unsigned ATO : 1; /* state of disk ATO bit */
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;
};
#define to_scsi_disk(obj) container_of(obj,struct scsi_disk,dev)
(sdsk)->disk->disk_name, ##a) : \
sdev_printk(prefix, (sdsk)->device, fmt, ##a)
+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;
+}
+
/*
* A DIF-capable target device can be formatted with different
* protection schemes. Currently 0 through 3 are defined: