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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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![Linus Torvalds](/assets/img/avatar_default.png)
This series consists of the usual driver updates (ufs, qla2xxx, tcmu, ibmvfc, lpfc, smartpqi, hisi_sas, qedi, qedf, mpt3sas) and minor bug fixes. There are only three core changes: adding sense codes, cleaning up noretry and adding an option for limitless retries. Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com> -----BEGIN PGP SIGNATURE----- iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCX4YulyYcamFtZXMuYm90 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishaZDAQCT7rwG UEZYHgYkU9EX9ERVBQM0SW4mLrxf3g3P5ioJsAEAtkclCM4QsIOP+MIPjIa0EyUY khu0kcrmeFR2YwA8zhw= =4w4S -----END PGP SIGNATURE----- Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI updates from James Bottomley: "The usual driver updates (ufs, qla2xxx, tcmu, ibmvfc, lpfc, smartpqi, hisi_sas, qedi, qedf, mpt3sas) and minor bug fixes. There are only three core changes: adding sense codes, cleaning up noretry and adding an option for limitless retries" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (226 commits) scsi: hisi_sas: Recover PHY state according to the status before reset scsi: hisi_sas: Filter out new PHY up events during suspend scsi: hisi_sas: Add device link between SCSI devices and hisi_hba scsi: hisi_sas: Add check for methods _PS0 and _PR0 scsi: hisi_sas: Add controller runtime PM support for v3 hw scsi: hisi_sas: Switch to new framework to support suspend and resume scsi: hisi_sas: Use hisi_hba->cq_nvecs for calling calling synchronize_irq() scsi: qedf: Remove redundant assignment to variable 'rc' scsi: lpfc: Remove unneeded variable 'status' in lpfc_fcp_cpu_map_store() scsi: snic: Convert to use DEFINE_SEQ_ATTRIBUTE macro scsi: qla4xxx: Delete unneeded variable 'status' in qla4xxx_process_ddb_changed scsi: sun_esp: Use module_platform_driver to simplify the code scsi: sun3x_esp: Use module_platform_driver to simplify the code scsi: sni_53c710: Use module_platform_driver to simplify the code scsi: qlogicpti: Use module_platform_driver to simplify the code scsi: mac_esp: Use module_platform_driver to simplify the code scsi: jazz_esp: Use module_platform_driver to simplify the code scsi: mvumi: Fix error return in mvumi_io_attach() scsi: lpfc: Drop nodelist reference on error in lpfc_gen_req() scsi: be2iscsi: Fix a theoretical leak in beiscsi_create_eqs() ...
274 lines
6.9 KiB
C
274 lines
6.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _SCSI_DISK_H
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#define _SCSI_DISK_H
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/*
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* More than enough for everybody ;) The huge number of majors
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* is a leftover from 16bit dev_t days, we don't really need that
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* much numberspace.
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*/
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#define SD_MAJORS 16
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/*
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* Time out in seconds for disks and Magneto-opticals (which are slower).
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*/
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#define SD_TIMEOUT (30 * HZ)
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#define SD_MOD_TIMEOUT (75 * HZ)
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/*
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* Flush timeout is a multiplier over the standard device timeout which is
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* user modifiable via sysfs but initially set to SD_TIMEOUT
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*/
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#define SD_FLUSH_TIMEOUT_MULTIPLIER 2
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#define SD_WRITE_SAME_TIMEOUT (120 * HZ)
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/*
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* Number of allowed retries
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*/
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#define SD_MAX_RETRIES 5
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#define SD_PASSTHROUGH_RETRIES 1
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#define SD_MAX_MEDIUM_TIMEOUTS 2
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/*
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* Size of the initial data buffer for mode and read capacity data
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*/
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#define SD_BUF_SIZE 512
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/*
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* Number of sectors at the end of the device to avoid multi-sector
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* accesses to in the case of last_sector_bug
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*/
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#define SD_LAST_BUGGY_SECTORS 8
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enum {
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SD_EXT_CDB_SIZE = 32, /* Extended CDB size */
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SD_MEMPOOL_SIZE = 2, /* CDB pool size */
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};
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enum {
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SD_DEF_XFER_BLOCKS = 0xffff,
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SD_MAX_XFER_BLOCKS = 0xffffffff,
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SD_MAX_WS10_BLOCKS = 0xffff,
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SD_MAX_WS16_BLOCKS = 0x7fffff,
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};
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enum {
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SD_LBP_FULL = 0, /* Full logical block provisioning */
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SD_LBP_UNMAP, /* Use UNMAP command */
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SD_LBP_WS16, /* Use WRITE SAME(16) with UNMAP bit */
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SD_LBP_WS10, /* Use WRITE SAME(10) with UNMAP bit */
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SD_LBP_ZERO, /* Use WRITE SAME(10) with zero payload */
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SD_LBP_DISABLE, /* Discard disabled due to failed cmd */
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};
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enum {
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SD_ZERO_WRITE = 0, /* Use WRITE(10/16) command */
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SD_ZERO_WS, /* Use WRITE SAME(10/16) command */
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SD_ZERO_WS16_UNMAP, /* Use WRITE SAME(16) with UNMAP */
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SD_ZERO_WS10_UNMAP, /* Use WRITE SAME(10) with UNMAP */
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};
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struct scsi_disk {
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struct scsi_driver *driver; /* always &sd_template */
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struct scsi_device *device;
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struct device dev;
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struct gendisk *disk;
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struct opal_dev *opal_dev;
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#ifdef CONFIG_BLK_DEV_ZONED
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u32 nr_zones;
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u32 rev_nr_zones;
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u32 zone_blocks;
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u32 rev_zone_blocks;
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u32 zones_optimal_open;
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u32 zones_optimal_nonseq;
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u32 zones_max_open;
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u32 *zones_wp_offset;
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spinlock_t zones_wp_offset_lock;
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u32 *rev_wp_offset;
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struct mutex rev_mutex;
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struct work_struct zone_wp_offset_work;
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char *zone_wp_update_buf;
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#endif
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atomic_t openers;
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sector_t capacity; /* size in logical blocks */
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int max_retries;
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u32 max_xfer_blocks;
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u32 opt_xfer_blocks;
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u32 max_ws_blocks;
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u32 max_unmap_blocks;
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u32 unmap_granularity;
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u32 unmap_alignment;
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u32 index;
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unsigned int physical_block_size;
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unsigned int max_medium_access_timeouts;
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unsigned int medium_access_timed_out;
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u8 media_present;
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u8 write_prot;
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u8 protection_type;/* Data Integrity Field */
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u8 provisioning_mode;
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u8 zeroing_mode;
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unsigned ATO : 1; /* state of disk ATO bit */
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unsigned cache_override : 1; /* temp override of WCE,RCD */
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unsigned WCE : 1; /* state of disk WCE bit */
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unsigned RCD : 1; /* state of disk RCD bit, unused */
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unsigned DPOFUA : 1; /* state of disk DPOFUA bit */
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unsigned first_scan : 1;
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unsigned lbpme : 1;
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unsigned lbprz : 1;
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unsigned lbpu : 1;
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unsigned lbpws : 1;
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unsigned lbpws10 : 1;
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unsigned lbpvpd : 1;
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unsigned ws10 : 1;
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unsigned ws16 : 1;
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unsigned rc_basis: 2;
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unsigned zoned: 2;
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unsigned urswrz : 1;
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unsigned security : 1;
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unsigned ignore_medium_access_errors : 1;
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};
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#define to_scsi_disk(obj) container_of(obj,struct scsi_disk,dev)
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static inline struct scsi_disk *scsi_disk(struct gendisk *disk)
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{
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return container_of(disk->private_data, struct scsi_disk, driver);
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}
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#define sd_printk(prefix, sdsk, fmt, a...) \
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(sdsk)->disk ? \
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sdev_prefix_printk(prefix, (sdsk)->device, \
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(sdsk)->disk->disk_name, fmt, ##a) : \
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sdev_printk(prefix, (sdsk)->device, fmt, ##a)
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#define sd_first_printk(prefix, sdsk, fmt, a...) \
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do { \
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if ((sdsk)->first_scan) \
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sd_printk(prefix, sdsk, fmt, ##a); \
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} while (0)
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static inline int scsi_medium_access_command(struct scsi_cmnd *scmd)
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{
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switch (scmd->cmnd[0]) {
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case READ_6:
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case READ_10:
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case READ_12:
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case READ_16:
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case SYNCHRONIZE_CACHE:
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case VERIFY:
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case VERIFY_12:
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case VERIFY_16:
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case WRITE_6:
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case WRITE_10:
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case WRITE_12:
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case WRITE_16:
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case WRITE_SAME:
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case WRITE_SAME_16:
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case UNMAP:
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return 1;
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case VARIABLE_LENGTH_CMD:
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switch (scmd->cmnd[9]) {
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case READ_32:
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case VERIFY_32:
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case WRITE_32:
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case WRITE_SAME_32:
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return 1;
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}
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}
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return 0;
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}
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static inline sector_t logical_to_sectors(struct scsi_device *sdev, sector_t blocks)
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{
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return blocks << (ilog2(sdev->sector_size) - 9);
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}
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static inline unsigned int logical_to_bytes(struct scsi_device *sdev, sector_t blocks)
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{
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return blocks * sdev->sector_size;
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}
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static inline sector_t bytes_to_logical(struct scsi_device *sdev, unsigned int bytes)
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{
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return bytes >> ilog2(sdev->sector_size);
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}
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static inline sector_t sectors_to_logical(struct scsi_device *sdev, sector_t sector)
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{
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return sector >> (ilog2(sdev->sector_size) - 9);
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}
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#ifdef CONFIG_BLK_DEV_INTEGRITY
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extern void sd_dif_config_host(struct scsi_disk *);
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#else /* CONFIG_BLK_DEV_INTEGRITY */
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static inline void sd_dif_config_host(struct scsi_disk *disk)
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{
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}
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#endif /* CONFIG_BLK_DEV_INTEGRITY */
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static inline int sd_is_zoned(struct scsi_disk *sdkp)
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{
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return sdkp->zoned == 1 || sdkp->device->type == TYPE_ZBC;
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}
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#ifdef CONFIG_BLK_DEV_ZONED
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void sd_zbc_release_disk(struct scsi_disk *sdkp);
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int sd_zbc_read_zones(struct scsi_disk *sdkp, unsigned char *buffer);
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int sd_zbc_revalidate_zones(struct scsi_disk *sdkp);
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blk_status_t sd_zbc_setup_zone_mgmt_cmnd(struct scsi_cmnd *cmd,
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unsigned char op, bool all);
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unsigned int sd_zbc_complete(struct scsi_cmnd *cmd, unsigned int good_bytes,
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struct scsi_sense_hdr *sshdr);
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int sd_zbc_report_zones(struct gendisk *disk, sector_t sector,
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unsigned int nr_zones, report_zones_cb cb, void *data);
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blk_status_t sd_zbc_prepare_zone_append(struct scsi_cmnd *cmd, sector_t *lba,
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unsigned int nr_blocks);
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#else /* CONFIG_BLK_DEV_ZONED */
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static inline void sd_zbc_release_disk(struct scsi_disk *sdkp) {}
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static inline int sd_zbc_read_zones(struct scsi_disk *sdkp,
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unsigned char *buf)
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{
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return 0;
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}
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static inline int sd_zbc_revalidate_zones(struct scsi_disk *sdkp)
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{
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return 0;
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}
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static inline blk_status_t sd_zbc_setup_zone_mgmt_cmnd(struct scsi_cmnd *cmd,
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unsigned char op,
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bool all)
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{
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return BLK_STS_TARGET;
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}
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static inline unsigned int sd_zbc_complete(struct scsi_cmnd *cmd,
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unsigned int good_bytes, struct scsi_sense_hdr *sshdr)
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{
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return good_bytes;
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}
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static inline blk_status_t sd_zbc_prepare_zone_append(struct scsi_cmnd *cmd,
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sector_t *lba,
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unsigned int nr_blocks)
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{
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return BLK_STS_TARGET;
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}
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#define sd_zbc_report_zones NULL
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#endif /* CONFIG_BLK_DEV_ZONED */
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void sd_print_sense_hdr(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr);
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void sd_print_result(const struct scsi_disk *sdkp, const char *msg, int result);
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#endif /* _SCSI_DISK_H */
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