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Commit c1ad8867 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by James Bottomley
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[PATCH] Coding Style police for scsi_error.c

parent 2e8a9a3f
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Showing with 137 additions and 188 deletions
drivers/scsi/scsi_error.c
View file @ c1ad8867
......@@ -15,33 +15,19 @@
*/
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/stat.h>
#include <linux/blk.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/blkdev.h>
#include <linux/smp_lock.h>
#include <linux/completion.h>
#define __KERNEL_SYSCALLS__
#include <linux/unistd.h>
#include <asm/system.h>
#include <asm/irq.h>
#include <asm/dma.h>
#include <scsi/scsi_ioctl.h>
#include "scsi.h"
#include "hosts.h"
#include <scsi/scsi_ioctl.h> /* grr */
#ifdef DEBUG
#define SENSE_TIMEOUT SCSI_TIMEOUT
#else
......@@ -111,8 +97,8 @@ int scsi_eh_scmd_add(struct scsi_cmnd *scmd, int eh_flag)
* simple, really, especially compared to the old way of handling this
* crap.
**/
void scsi_add_timer(Scsi_Cmnd *scmd, int timeout, void (*complete)
(Scsi_Cmnd *))
void scsi_add_timer(struct scsi_cmnd *scmd, int timeout,
void (*complete)(struct scsi_cmnd *))
{
/*
......@@ -120,10 +106,10 @@ void scsi_add_timer(Scsi_Cmnd *scmd, int timeout, void (*complete)
* first delete the timer. The timer handling code gets rather
* confused if we don't do this.
*/
if (scmd->eh_timeout.function != NULL) {
if (scmd->eh_timeout.function)
del_timer(&scmd->eh_timeout);
}
scmd->eh_timeout.data = (unsigned long) scmd;
scmd->eh_timeout.data = (unsigned long)scmd;
scmd->eh_timeout.expires = jiffies + timeout;
scmd->eh_timeout.function = (void (*)(unsigned long)) complete;
......@@ -132,7 +118,6 @@ void scsi_add_timer(Scsi_Cmnd *scmd, int timeout, void (*complete)
scmd, timeout, complete));
add_timer(&scmd->eh_timeout);
}
/**
......@@ -146,7 +131,7 @@ void scsi_add_timer(Scsi_Cmnd *scmd, int timeout, void (*complete)
* 1 if we were able to detach the timer. 0 if we blew it, and the
* timer function has already started to run.
**/
int scsi_delete_timer(Scsi_Cmnd *scmd)
int scsi_delete_timer(struct scsi_cmnd *scmd)
{
int rtn;
......@@ -156,7 +141,7 @@ int scsi_delete_timer(Scsi_Cmnd *scmd)
" rtn: %d\n", __FUNCTION__,
scmd, rtn));
scmd->eh_timeout.data = (unsigned long) NULL;
scmd->eh_timeout.data = (unsigned long)NULL;
scmd->eh_timeout.function = NULL;
return rtn;
......@@ -172,7 +157,7 @@ int scsi_delete_timer(Scsi_Cmnd *scmd)
* normal completion function determines that the timer has already
* fired, then it mustn't do anything.
**/
void scsi_times_out(Scsi_Cmnd *scmd)
void scsi_times_out(struct scsi_cmnd *scmd)
{
if (unlikely(!scsi_eh_scmd_add(scmd, SCSI_EH_CANCEL_CMD))) {
panic("Error handler thread not present at %p %p %s %d",
......@@ -195,7 +180,7 @@ void scsi_times_out(Scsi_Cmnd *scmd)
* Return value:
* 0 when dev was taken offline by error recovery. 1 OK to proceed.
**/
int scsi_block_when_processing_errors(Scsi_Device *sdev)
int scsi_block_when_processing_errors(struct scsi_device *sdev)
{
wait_event(sdev->host->host_wait, (sdev->host->in_recovery == 0));
......@@ -260,11 +245,10 @@ static inline void scsi_eh_prt_fail_stats(struct Scsi_Host *shost,
* Return value:
* SUCCESS or FAILED or NEEDS_RETRY
**/
static int scsi_check_sense(Scsi_Cmnd *scmd)
static int scsi_check_sense(struct scsi_cmnd *scmd)
{
if (!SCSI_SENSE_VALID(scmd)) {
if (!SCSI_SENSE_VALID(scmd))
return FAILED;
}
if (scmd->sense_buffer[2] & 0xe0)
return SUCCESS;
......@@ -326,9 +310,8 @@ static int scsi_check_sense(Scsi_Cmnd *scmd)
* don't allow for the possibility of retries here, and we are a lot
* more restrictive about what we consider acceptable.
**/
static int scsi_eh_completed_normally(Scsi_Cmnd *scmd)
static int scsi_eh_completed_normally(struct scsi_cmnd *scmd)
{
/*
* first check the host byte, to see if there is anything in there
* that would indicate what we need to do.
......@@ -353,15 +336,15 @@ static int scsi_eh_completed_normally(Scsi_Cmnd *scmd)
*/
return scsi_check_sense(scmd);
}
if (host_byte(scmd->result) != DID_OK) {
if (host_byte(scmd->result) != DID_OK)
return FAILED;
}
/*
* next, check the message byte.
*/
if (msg_byte(scmd->result) != COMMAND_COMPLETE) {
if (msg_byte(scmd->result) != COMMAND_COMPLETE)
return FAILED;
}
/*
* now, check the status byte to see if this indicates
* anything special.
......@@ -397,46 +380,38 @@ static int scsi_eh_completed_normally(Scsi_Cmnd *scmd)
* for some action to complete on the device. our only job is to
* record that it timed out, and to wake up the thread.
**/
static void scsi_eh_times_out(Scsi_Cmnd *scmd)
static void scsi_eh_times_out(struct scsi_cmnd *scmd)
{
scsi_eh_eflags_set(scmd, SCSI_EH_REC_TIMEOUT);
SCSI_LOG_ERROR_RECOVERY(3, printk("%s: scmd:%p\n", __FUNCTION__,
scmd));
if (scmd->device->host->eh_action != NULL)
if (scmd->device->host->eh_action)
up(scmd->device->host->eh_action);
else
printk("%s: eh_action NULL\n", __FUNCTION__);
}
/**
* scsi_eh_done - Completion function for error handling.
* @scmd: Cmd that is done.
**/
static void scsi_eh_done(Scsi_Cmnd *scmd)
static void scsi_eh_done(struct scsi_cmnd *scmd)
{
int rtn;
/*
* if the timeout handler is already running, then just set the
* flag which says we finished late, and return. we have no
* way of stopping the timeout handler from running, so we must
* always defer to it.
*/
rtn = del_timer(&scmd->eh_timeout);
if (!rtn) {
return;
}
if (del_timer(&scmd->eh_timeout)) {
scmd->request->rq_status = RQ_SCSI_DONE;
scmd->owner = SCSI_OWNER_ERROR_HANDLER;
SCSI_LOG_ERROR_RECOVERY(3, printk("%s scmd: %p result: %x\n",
__FUNCTION__, scmd, scmd->result));
if (scmd->device->host->eh_action != NULL)
if (scmd->device->host->eh_action)
up(scmd->device->host->eh_action);
}
}
/**
......@@ -451,10 +426,10 @@ static void scsi_eh_done(Scsi_Cmnd *scmd)
* Return value:
* SUCCESS or FAILED or NEEDS_RETRY
**/
static int scsi_send_eh_cmnd(Scsi_Cmnd *scmd, int timeout)
static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout)
{
unsigned long flags;
struct Scsi_Host *host = scmd->device->host;
unsigned long flags;
int rtn = SUCCESS;
ASSERT_LOCK(host->host_lock, 0);
......@@ -567,32 +542,33 @@ static int scsi_send_eh_cmnd(Scsi_Cmnd *scmd, int timeout)
* that we obtain it on our own. This function will *not* return until
* the command either times out, or it completes.
**/
static int scsi_request_sense(Scsi_Cmnd *scmd)
static int scsi_request_sense(struct scsi_cmnd *scmd)
{
static unsigned char generic_sense[6] =
{REQUEST_SENSE, 0, 0, 0, 255, 0};
unsigned char scsi_result0[256], *scsi_result = NULL;
unsigned char scsi_result0[256], *scsi_result = &scsi_result0[0];
int saved_result;
int rtn;
memcpy((void *) scmd->cmnd, (void *) generic_sense,
sizeof(generic_sense));
memcpy(scmd->cmnd, generic_sense, sizeof(generic_sense));
scsi_result = (!scmd->device->host->hostt->unchecked_isa_dma)
? &scsi_result0[0] : kmalloc(512, GFP_ATOMIC | GFP_DMA);
if (scsi_result == NULL) {
printk("%s: cannot allocate scsi_result.\n", __FUNCTION__);
if (scmd->device->host->hostt->unchecked_isa_dma) {
scsi_result = kmalloc(512, GFP_ATOMIC | __GFP_DMA);
if (unlikely(!scsi_result)) {
printk(KERN_ERR "%s: cannot allocate scsi_result.\n",
__FUNCTION__);
return FAILED;
}
}
/*
* zero the sense buffer. some host adapters automatically always
* request sense, so it is not a good idea that
* scmd->request_buffer and scmd->sense_buffer point to the same
* address (db). 0 is not a valid sense code.
*/
memset((void *) scmd->sense_buffer, 0, sizeof(scmd->sense_buffer));
memset((void *) scsi_result, 0, 256);
memset(scmd->sense_buffer, 0, sizeof(scmd->sense_buffer));
memset(scsi_result, 0, 256);
saved_result = scmd->result;
scmd->request_buffer = scsi_result;
......@@ -605,12 +581,12 @@ static int scsi_request_sense(Scsi_Cmnd *scmd)
rtn = scsi_send_eh_cmnd(scmd, SENSE_TIMEOUT);
/* last chance to have valid sense data */
if (!SCSI_SENSE_VALID(scmd))
memcpy((void *) scmd->sense_buffer,
scmd->request_buffer,
if (!SCSI_SENSE_VALID(scmd)) {
memcpy(scmd->sense_buffer, scmd->request_buffer,
sizeof(scmd->sense_buffer));
}
if (scsi_result != &scsi_result0[0] && scsi_result != NULL)
if (scsi_result != &scsi_result0[0])
kfree(scsi_result);
/*
......@@ -619,10 +595,6 @@ static int scsi_request_sense(Scsi_Cmnd *scmd)
*/
scsi_setup_cmd_retry(scmd);
scmd->result = saved_result;
/*
* hey, we are done. let's look to see what happened.
*/
return rtn;
}
......@@ -634,7 +606,7 @@ static int scsi_request_sense(Scsi_Cmnd *scmd)
* This function will *not* return until the command either times out,
* or it completes.
**/
static int scsi_eh_retry_cmd(Scsi_Cmnd *scmd)
static int scsi_eh_retry_cmd(struct scsi_cmnd *scmd)
{
int rtn = SUCCESS;
......@@ -660,11 +632,12 @@ static int scsi_eh_retry_cmd(Scsi_Cmnd *scmd)
* keep a list of pending commands for final completion, and once we
* are ready to leave error handling we handle completion for real.
**/
static void scsi_eh_finish_cmd(Scsi_Cmnd *scmd,
struct list_head *done_q )
static void scsi_eh_finish_cmd(struct scsi_cmnd *scmd,
struct list_head *done_q)
{
scmd->device->host->host_failed--;
scmd->state = SCSI_STATE_BHQUEUE;
scsi_eh_eflags_clr_all(scmd);
/*
......@@ -672,7 +645,6 @@ static void scsi_eh_finish_cmd(Scsi_Cmnd *scmd,
* things.
*/
scsi_setup_cmd_retry(scmd);
list_move_tail(&scmd->eh_entry, done_q);
}
......@@ -685,7 +657,6 @@ static void scsi_eh_finish_cmd(Scsi_Cmnd *scmd,
* See if we need to request sense information. if so, then get it
* now, so we have a better idea of what to do.
*
*
* Notes:
* This has the unfortunate side effect that if a shost adapter does
* not automatically request sense information, that we end up shutting
......@@ -696,13 +667,15 @@ static void scsi_eh_finish_cmd(Scsi_Cmnd *scmd,
* this.
*
* In 2.5 this capability will be going away.
*
* Really? --hch
**/
static int scsi_eh_get_sense(struct list_head *work_q,
struct list_head *done_q)
{
int rtn;
struct list_head *lh, *lh_sf;
Scsi_Cmnd *scmd;
struct scsi_cmnd *scmd;
int rtn;
list_for_each_safe(lh, lh_sf, work_q) {
scmd = list_entry(lh, struct scsi_cmnd, eh_entry);
......@@ -766,14 +739,14 @@ static int scsi_eh_get_sense(struct list_head *work_q,
* they can provide this facility themselves. helper functions in
* scsi_error.c can be supplied to make this easier to do.
**/
static int scsi_try_to_abort_cmd(Scsi_Cmnd *scmd)
static int scsi_try_to_abort_cmd(struct scsi_cmnd *scmd)
{
int rtn = FAILED;
unsigned long flags;
int rtn = FAILED;
if (scmd->device->host->hostt->eh_abort_handler == NULL) {
if (!scmd->device->host->hostt->eh_abort_handler)
return rtn;
}
/*
* scsi_done was called just after the command timed out and before
* we had a chance to process it. (db)
......@@ -786,6 +759,7 @@ static int scsi_try_to_abort_cmd(Scsi_Cmnd *scmd)
spin_lock_irqsave(scmd->device->host->host_lock, flags);
rtn = scmd->device->host->hostt->eh_abort_handler(scmd);
spin_unlock_irqrestore(scmd->device->host->host_lock, flags);
return rtn;
}
......@@ -796,22 +770,19 @@ static int scsi_try_to_abort_cmd(Scsi_Cmnd *scmd)
* Return value:
* 0 - Device is ready. 1 - Device NOT ready.
**/
static int scsi_eh_tur(Scsi_Cmnd *scmd)
static int scsi_eh_tur(struct scsi_cmnd *scmd)
{
static unsigned char tur_command[6] =
{TEST_UNIT_READY, 0, 0, 0, 0, 0};
int rtn;
int retry_cnt = 1;
static unsigned char tur_command[6] = {TEST_UNIT_READY, 0, 0, 0, 0, 0};
int retry_cnt = 1, rtn;
retry_tur:
memcpy((void *) scmd->cmnd, (void *) tur_command,
sizeof(tur_command));
memcpy(scmd->cmnd, tur_command, sizeof(tur_command));
/*
* zero the sense buffer. the scsi spec mandates that any
* untransferred sense data should be interpreted as being zero.
*/
memset((void *) scmd->sense_buffer, 0, sizeof(scmd->sense_buffer));
memset(scmd->sense_buffer, 0, sizeof(scmd->sense_buffer));
scmd->request_buffer = NULL;
scmd->request_bufflen = 0;
......@@ -856,9 +827,9 @@ static int scsi_eh_tur(Scsi_Cmnd *scmd)
static int scsi_eh_abort_cmds(struct list_head *work_q,
struct list_head *done_q)
{
int rtn;
struct list_head *lh, *lh_sf;
struct scsi_cmnd *scmd;
int rtn;
list_for_each_safe(lh, lh_sf, work_q) {
scmd = list_entry(lh, struct scsi_cmnd, eh_entry);
......@@ -895,14 +866,14 @@ static int scsi_eh_abort_cmds(struct list_head *work_q,
* timer on it, and set the host back to a consistent state prior to
* returning.
**/
static int scsi_try_bus_device_reset(Scsi_Cmnd *scmd)
static int scsi_try_bus_device_reset(struct scsi_cmnd *scmd)
{
unsigned long flags;
int rtn = FAILED;
if (scmd->device->host->hostt->eh_device_reset_handler == NULL) {
if (!scmd->device->host->hostt->eh_device_reset_handler)
return rtn;
}
scmd->owner = SCSI_OWNER_LOWLEVEL;
spin_lock_irqsave(scmd->device->host->host_lock, flags);
......@@ -932,10 +903,10 @@ static int scsi_eh_bus_device_reset(struct Scsi_Host *shost,
struct list_head *work_q,
struct list_head *done_q)
{
int rtn;
struct list_head *lh, *lh_sf;
struct scsi_cmnd *scmd, *bdr_scmd;
struct scsi_device *sdev;
int rtn;
list_for_each_entry(sdev, &shost->my_devices, siblings) {
bdr_scmd = NULL;
......@@ -980,18 +951,18 @@ static int scsi_eh_bus_device_reset(struct Scsi_Host *shost,
* scsi_try_bus_reset - ask host to perform a bus reset
* @scmd: SCSI cmd to send bus reset.
**/
static int scsi_try_bus_reset(Scsi_Cmnd *scmd)
static int scsi_try_bus_reset(struct scsi_cmnd *scmd)
{
struct scsi_device *sdev;
unsigned long flags;
int rtn;
Scsi_Device *sdev;
SCSI_LOG_ERROR_RECOVERY(3, printk("%s: Snd Bus RST\n",
__FUNCTION__));
scmd->owner = SCSI_OWNER_LOWLEVEL;
scmd->serial_number_at_timeout = scmd->serial_number;
if (scmd->device->host->hostt->eh_bus_reset_handler == NULL)
if (!scmd->device->host->hostt->eh_bus_reset_handler)
return FAILED;
spin_lock_irqsave(scmd->device->host->host_lock, flags);
......@@ -1017,18 +988,18 @@ static int scsi_try_bus_reset(Scsi_Cmnd *scmd)
* scsi_try_host_reset - ask host adapter to reset itself
* @scmd: SCSI cmd to send hsot reset.
**/
static int scsi_try_host_reset(Scsi_Cmnd *scmd)
static int scsi_try_host_reset(struct scsi_cmnd *scmd)
{
struct scsi_device *sdev;
unsigned long flags;
int rtn;
Scsi_Device *sdev;
SCSI_LOG_ERROR_RECOVERY(3, printk("%s: Snd Host RST\n",
__FUNCTION__));
scmd->owner = SCSI_OWNER_LOWLEVEL;
scmd->serial_number_at_timeout = scmd->serial_number;
if (scmd->device->host->hostt->eh_host_reset_handler == NULL)
if (!scmd->device->host->hostt->eh_host_reset_handler)
return FAILED;
spin_lock_irqsave(scmd->device->host->host_lock, flags);
......@@ -1059,11 +1030,11 @@ static int scsi_eh_bus_reset(struct Scsi_Host *shost,
struct list_head *work_q,
struct list_head *done_q)
{
int rtn;
struct list_head *lh, *lh_sf;
Scsi_Cmnd *scmd;
Scsi_Cmnd *chan_scmd;
struct scsi_cmnd *scmd;
struct scsi_cmnd *chan_scmd;
unsigned int channel;
int rtn;
/*
* we really want to loop over the various channels, and do this on
......@@ -1121,7 +1092,7 @@ static int scsi_eh_host_reset(struct list_head *work_q,
{
int rtn;
struct list_head *lh, *lh_sf;
Scsi_Cmnd *scmd;
struct scsi_cmnd *scmd;
if (!list_empty(work_q)) {
scmd = list_entry(work_q->next,
......@@ -1156,7 +1127,7 @@ static void scsi_eh_offline_sdevs(struct list_head *work_q,
struct list_head *done_q)
{
struct list_head *lh, *lh_sf;
Scsi_Cmnd *scmd;
struct scsi_cmnd *scmd;
list_for_each_safe(lh, lh_sf, work_q) {
scmd = list_entry(lh, struct scsi_cmnd, eh_entry);
......@@ -1183,12 +1154,12 @@ static void scsi_eh_offline_sdevs(struct list_head *work_q,
* @sem: semphore to signal
*
**/
static
void scsi_sleep_done(struct semaphore *sem)
static void scsi_sleep_done(unsigned long data)
{
if (sem != NULL) {
struct semaphore *sem = (struct semaphore *)data;
if (sem)
up(sem);
}
}
/**
......@@ -1202,9 +1173,9 @@ void scsi_sleep(int timeout)
struct timer_list timer;
init_timer(&timer);
timer.data = (unsigned long) &sem;
timer.data = (unsigned long)&sem;
timer.expires = jiffies + timeout;
timer.function = (void (*)(unsigned long)) scsi_sleep_done;
timer.function = (void (*)(unsigned long))scsi_sleep_done;
SCSI_LOG_ERROR_RECOVERY(5, printk("sleeping for timer tics %d\n",
timeout));
......@@ -1229,7 +1200,7 @@ void scsi_sleep(int timeout)
* doesn't require the error handler read (i.e. we don't need to
* abort/reset), then this function should return SUCCESS.
**/
int scsi_decide_disposition(Scsi_Cmnd *scmd)
int scsi_decide_disposition(struct scsi_cmnd *scmd)
{
int rtn;
......@@ -1429,7 +1400,7 @@ static void scsi_eh_lock_door(struct scsi_device *sdev)
{
struct scsi_request *sreq = scsi_allocate_request(sdev);
if (sreq == NULL) {
if (unlikely(!sreq)) {
printk(KERN_ERR "%s: request allocate failed,"
"prevent media removal cmd not sent", __FUNCTION__);
return;
......@@ -1463,7 +1434,7 @@ static void scsi_eh_lock_door(struct scsi_device *sdev)
**/
static void scsi_restart_operations(struct Scsi_Host *shost)
{
Scsi_Device *sdev;
struct scsi_device *sdev;
unsigned long flags;
ASSERT_LOCK(shost->host_lock, 0);
......@@ -1533,7 +1504,7 @@ static void scsi_eh_ready_devs(struct Scsi_Host *shost,
static void scsi_eh_flush_done_q(struct list_head *done_q)
{
struct list_head *lh, *lh_sf;
Scsi_Cmnd *scmd;
struct scsi_cmnd *scmd;
list_for_each_safe(lh, lh_sf, done_q) {
scmd = list_entry(lh, struct scsi_cmnd, eh_entry);
......@@ -1674,11 +1645,10 @@ void scsi_error_handler(void *data)
* what we need to do to get it up and online again (if we can).
* If we fail, we end up taking the thing offline.
*/
if (shost->hostt->eh_strategy_handler != NULL) {
if (shost->hostt->eh_strategy_handler)
rtn = shost->hostt->eh_strategy_handler(shost);
} else {
else
scsi_unjam_host(shost);
}
shost->eh_active = 0;
......@@ -1719,45 +1689,8 @@ void scsi_error_handler(void *data)
complete_and_exit(shost->eh_notify, 0);
}
/**
* scsi_new_reset - Send reset to a bus or device at any phase.
* @scmd: Cmd to send reset with (usually a dummy)
* @flag: Reset type.
*
* Description:
* This is used by the SCSI Generic driver to provide Bus/Device reset
* capability.
*
* Return value:
* SUCCESS/FAILED.
**/
static int scsi_new_reset(Scsi_Cmnd *scmd, int flag)
{
int rtn;
switch(flag) {
case SCSI_TRY_RESET_DEVICE:
rtn = scsi_try_bus_device_reset(scmd);
if (rtn == SUCCESS)
break;
/* FALLTHROUGH */
case SCSI_TRY_RESET_BUS:
rtn = scsi_try_bus_reset(scmd);
if (rtn == SUCCESS)
break;
/* FALLTHROUGH */
case SCSI_TRY_RESET_HOST:
rtn = scsi_try_host_reset(scmd);
break;
default:
rtn = FAILED;
}
return rtn;
}
static void
scsi_reset_provider_done_command(Scsi_Cmnd *SCpnt)
scsi_reset_provider_done_command(struct scsi_cmnd *scmd)
{
}
......@@ -1775,47 +1708,63 @@ scsi_reset_provider_done_command(Scsi_Cmnd *SCpnt)
* Bus/Device reset capability.
*/
int
scsi_reset_provider(Scsi_Device *dev, int flag)
scsi_reset_provider(struct scsi_device *dev, int flag)
{
struct scsi_cmnd *SCpnt = scsi_get_command(dev, GFP_KERNEL);
struct scsi_cmnd *scmd = scsi_get_command(dev, GFP_KERNEL);
struct request req;
int rtn;
SCpnt->request = &req;
memset(&SCpnt->eh_timeout, 0, sizeof(SCpnt->eh_timeout));
SCpnt->request->rq_status = RQ_SCSI_BUSY;
SCpnt->state = SCSI_STATE_INITIALIZING;
SCpnt->owner = SCSI_OWNER_MIDLEVEL;
scmd->request = &req;
memset(&scmd->eh_timeout, 0, sizeof(scmd->eh_timeout));
scmd->request->rq_status = RQ_SCSI_BUSY;
scmd->state = SCSI_STATE_INITIALIZING;
scmd->owner = SCSI_OWNER_MIDLEVEL;
memset(&SCpnt->cmnd, '\0', sizeof(SCpnt->cmnd));
memset(&scmd->cmnd, '\0', sizeof(scmd->cmnd));
SCpnt->scsi_done = scsi_reset_provider_done_command;
SCpnt->done = NULL;
SCpnt->reset_chain = NULL;
scmd->scsi_done = scsi_reset_provider_done_command;
scmd->done = NULL;
scmd->reset_chain = NULL;
SCpnt->buffer = NULL;
SCpnt->bufflen = 0;
SCpnt->request_buffer = NULL;
SCpnt->request_bufflen = 0;
scmd->buffer = NULL;
scmd->bufflen = 0;
scmd->request_buffer = NULL;
scmd->request_bufflen = 0;
SCpnt->internal_timeout = NORMAL_TIMEOUT;
SCpnt->abort_reason = DID_ABORT;
scmd->internal_timeout = NORMAL_TIMEOUT;
scmd->abort_reason = DID_ABORT;
SCpnt->cmd_len = 0;
scmd->cmd_len = 0;
SCpnt->sc_data_direction = SCSI_DATA_UNKNOWN;
SCpnt->sc_request = NULL;
SCpnt->sc_magic = SCSI_CMND_MAGIC;
scmd->sc_data_direction = SCSI_DATA_UNKNOWN;
scmd->sc_request = NULL;
scmd->sc_magic = SCSI_CMND_MAGIC;
/*
* Sometimes the command can get back into the timer chain,
* so use the pid as an identifier.
*/
SCpnt->pid = 0;
scmd->pid = 0;
rtn = scsi_new_reset(SCpnt, flag);
switch (flag) {
case SCSI_TRY_RESET_DEVICE:
rtn = scsi_try_bus_device_reset(scmd);
if (rtn == SUCCESS)
break;
/* FALLTHROUGH */
case SCSI_TRY_RESET_BUS:
rtn = scsi_try_bus_reset(scmd);
if (rtn == SUCCESS)
break;
/* FALLTHROUGH */
case SCSI_TRY_RESET_HOST:
rtn = scsi_try_host_reset(scmd);
break;
default:
rtn = FAILED;
}
scsi_delete_timer(SCpnt);
scsi_put_command(SCpnt);
scsi_delete_timer(scmd);
scsi_put_command(scmd);
return rtn;
}
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