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Merge SCSI tree from James Bottomley.

Browse source 
Done with "git-pull-script rsync://www.parisc-linux.org/~jejb/scsi-rc-fixes-2.6.git"
together with an automated content merge.
This commit is contained in:
Linus Torvalds 2005-04-18 14:25:40 -07:00
commit 0b2cad2f30
37 changed files with 180 additions and 315 deletions
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11
include/scsi/scsi.h
View file

@ -295,6 +295,8 @@ struct scsi_lun {
#define DID_PASSTHROUGH 0x0a /* Force command past mid-layer */
#define DID_SOFT_ERROR 0x0b /* The low level driver just wish a retry */
#define DID_IMM_RETRY 0x0c /* Retry without decrementing retry count */
#define DID_REQUEUE 0x0d /* Requeue command (no immediate retry) also
* without decrementing the retry count */
#define DRIVER_OK 0x00 /* Driver status */
/*
@ -360,6 +362,15 @@ struct scsi_lun {
#define sense_error(sense) ((sense) & 0xf)
#define sense_valid(sense) ((sense) & 0x80);
/*
* default timeouts
*/
#define FORMAT_UNIT_TIMEOUT (2 * 60 * 60 * HZ)
#define START_STOP_TIMEOUT (60 * HZ)
#define MOVE_MEDIUM_TIMEOUT (5 * 60 * HZ)
#define READ_ELEMENT_STATUS_TIMEOUT (5 * 60 * HZ)
#define READ_DEFECT_DATA_TIMEOUT (60 * HZ )
#define IDENTIFY_BASE 0x80
#define IDENTIFY(can_disconnect, lun) (IDENTIFY_BASE |\

28
include/scsi/scsi_cmnd.h
View file

@ -43,21 +43,17 @@ struct scsi_cmnd {
void (*done) (struct scsi_cmnd *); /* Mid-level done function */
/*
* A SCSI Command is assigned a nonzero serial_number when internal_cmnd
* passes it to the driver's queue command function. The serial_number
* is cleared when scsi_done is entered indicating that the command has
* been completed. If a timeout occurs, the serial number at the moment
* of timeout is copied into serial_number_at_timeout. By subsequently
* comparing the serial_number and serial_number_at_timeout fields
* during abort or reset processing, we can detect whether the command
* has already completed. This also detects cases where the command has
* completed and the SCSI Command structure has already being reused
* for another command, so that we can avoid incorrectly aborting or
* resetting the new command.
* The serial number is only unique per host.
* A SCSI Command is assigned a nonzero serial_number before passed
* to the driver's queue command function. The serial_number is
* cleared when scsi_done is entered indicating that the command
* has been completed. It currently doesn't have much use other
* than printk's. Some lldd's use this number for other purposes.
* It's almost certain that such usages are either incorrect or
* meaningless. Please kill all usages other than printk's. Also,
* as this number is always identical to ->pid, please convert
* printk's to use ->pid, so that we can kill this field.
*/
unsigned long serial_number;
unsigned long serial_number_at_timeout;
int retries;
int allowed;
@ -65,12 +61,6 @@ struct scsi_cmnd {
int timeout_total;
int timeout;
/*
* We handle the timeout differently if it happens when a reset,
* abort, etc are in process.
*/
unsigned volatile char internal_timeout;
unsigned char cmd_len;
unsigned char old_cmd_len;
enum dma_data_direction sc_data_direction;