diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-05 13:30:44 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-05 13:30:44 -0700 |
commit | 4f7a307dc6e4d8bfeb56f7cf7231b08cb845687c (patch) | |
tree | 3bf90522c87fcb32373cb2a5ff25b1ead33405f5 /include/scsi/sd.h | |
parent | fabb5c4e4a474ff0f7d6c1d3466a1b79bbce5f49 (diff) | |
parent | 7297824581755593535fc97d2c8b6c47e2dc2db6 (diff) |
Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (87 commits)
[SCSI] fusion: fix domain validation loops
[SCSI] qla2xxx: fix regression on sparc64
[SCSI] modalias for scsi devices
[SCSI] sg: cap reserved_size values at max_sectors
[SCSI] BusLogic: stop using check_region
[SCSI] tgt: fix rdma transfer bugs
[SCSI] aacraid: fix aacraid not finding device
[SCSI] aacraid: Correct SMC products in aacraid.txt
[SCSI] scsi_error.c: Add EH Start Unit retry
[SCSI] aacraid: [Fastboot] Panics for AACRAID driver during 'insmod' for kexec test.
[SCSI] ipr: Driver version to 2.3.2
[SCSI] ipr: Faster sg list fetch
[SCSI] ipr: Return better qc_issue errors
[SCSI] ipr: Disrupt device error
[SCSI] ipr: Improve async error logging level control
[SCSI] ipr: PCI unblock config access fix
[SCSI] ipr: Fix for oops following SATA request sense
[SCSI] ipr: Log error for SAS dual path switch
[SCSI] ipr: Enable logging of debug error data for all devices
[SCSI] ipr: Add new PCI-E IDs to device table
...
Diffstat (limited to 'include/scsi/sd.h')
-rw-r--r-- | include/scsi/sd.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/include/scsi/sd.h b/include/scsi/sd.h new file mode 100644 index 00000000000..5261488e110 --- /dev/null +++ b/include/scsi/sd.h @@ -0,0 +1,72 @@ +#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 + +/* + * 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) + +/* + * Number of allowed retries + */ +#define SD_MAX_RETRIES 5 +#define SD_PASSTHROUGH_RETRIES 1 + +/* + * Size of the initial data buffer for mode and read capacity data + */ +#define SD_BUF_SIZE 512 + +struct scsi_disk { + struct scsi_driver *driver; /* always &sd_template */ + struct scsi_device *device; + struct class_device cdev; + struct gendisk *disk; + unsigned int openers; /* protected by BKL for now, yuck */ + sector_t capacity; /* size in 512-byte sectors */ + u32 index; + u8 media_present; + u8 write_prot; + 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 */ +}; +#define to_scsi_disk(obj) container_of(obj,struct scsi_disk,cdev) + +static int sd_revalidate_disk(struct gendisk *disk); +static void sd_rw_intr(struct scsi_cmnd * SCpnt); +static int sd_probe(struct device *); +static int sd_remove(struct device *); +static void sd_shutdown(struct device *dev); +static int sd_suspend(struct device *dev, pm_message_t state); +static int sd_resume(struct device *dev); +static void sd_rescan(struct device *); +static int sd_init_command(struct scsi_cmnd *); +static int sd_issue_flush(struct device *, sector_t *); +static void sd_prepare_flush(request_queue_t *, struct request *); +static void sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer); +static void scsi_disk_release(struct class_device *cdev); +static void sd_print_sense_hdr(struct scsi_disk *, struct scsi_sense_hdr *); +static void sd_print_result(struct scsi_disk *, int); + +#define sd_printk(prefix, sdsk, fmt, a...) \ + (sdsk)->disk ? \ + sdev_printk(prefix, (sdsk)->device, "[%s] " fmt, \ + (sdsk)->disk->disk_name, ##a) : \ + sdev_printk(prefix, (sdsk)->device, fmt, ##a) + +#endif /* _SCSI_DISK_H */ |