X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fscsi%2Fscsi_error.c;h=045a0868fc7b4540ac53676206ab1f5136355f13;hb=c9872fe1add5709fffd42249e6ca1080999aa06a;hp=3963e7013bd90eca80df51c268427a4f3107af32;hpb=c6799ade4ae04b53a5f677e5289116155ff01574;p=linux-2.6-omap-h63xx.git diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 3963e7013bd..045a0868fc7 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -18,8 +18,8 @@ #include #include #include -#include #include +#include #include #include #include @@ -36,9 +36,9 @@ #include "scsi_priv.h" #include "scsi_logging.h" +#include "scsi_transport_api.h" #define SENSE_TIMEOUT (10*HZ) -#define START_UNIT_TIMEOUT (30*HZ) /* * These should *probably* be handled by the host itself. @@ -62,7 +62,7 @@ void scsi_eh_wakeup(struct Scsi_Host *shost) * @shost: SCSI host to invoke error handling on. * * Schedule SCSI EH without scmd. - **/ + */ void scsi_schedule_eh(struct Scsi_Host *shost) { unsigned long flags; @@ -86,7 +86,7 @@ EXPORT_SYMBOL_GPL(scsi_schedule_eh); * * Return value: * 0 on failure. - **/ + */ int scsi_eh_scmd_add(struct scsi_cmnd *scmd, int eh_flag) { struct Scsi_Host *shost = scmd->device->host; @@ -121,7 +121,7 @@ int scsi_eh_scmd_add(struct scsi_cmnd *scmd, int eh_flag) * This should be turned into an inline function. Each scsi command * has its own timer, and as it is added to the queue, we set up the * timer. When the command completes, we cancel the timer. - **/ + */ void scsi_add_timer(struct scsi_cmnd *scmd, int timeout, void (*complete)(struct scsi_cmnd *)) { @@ -155,7 +155,7 @@ void scsi_add_timer(struct scsi_cmnd *scmd, int timeout, * Return value: * 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(struct scsi_cmnd *scmd) { int rtn; @@ -181,7 +181,7 @@ int scsi_delete_timer(struct scsi_cmnd *scmd) * only in that the normal completion handling might run, but if the * normal completion function determines that the timer has already * fired, then it mustn't do anything. - **/ + */ void scsi_times_out(struct scsi_cmnd *scmd) { enum scsi_eh_timer_return (* eh_timed_out)(struct scsi_cmnd *); @@ -224,7 +224,7 @@ void scsi_times_out(struct scsi_cmnd *scmd) * * Return value: * 0 when dev was taken offline by error recovery. 1 OK to proceed. - **/ + */ int scsi_block_when_processing_errors(struct scsi_device *sdev) { int online; @@ -245,7 +245,7 @@ EXPORT_SYMBOL(scsi_block_when_processing_errors); * scsi_eh_prt_fail_stats - Log info on failures. * @shost: scsi host being recovered. * @work_q: Queue of scsi cmds to process. - **/ + */ static inline void scsi_eh_prt_fail_stats(struct Scsi_Host *shost, struct list_head *work_q) { @@ -295,7 +295,7 @@ static inline void scsi_eh_prt_fail_stats(struct Scsi_Host *shost, * Notes: * When a deferred error is detected the current command has * not been executed and needs retrying. - **/ + */ static int scsi_check_sense(struct scsi_cmnd *scmd) { struct scsi_sense_hdr sshdr; @@ -398,7 +398,7 @@ static int scsi_check_sense(struct scsi_cmnd *scmd) * queued during error recovery. the main difference here is that we * 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(struct scsi_cmnd *scmd) { /* @@ -452,7 +452,7 @@ static int scsi_eh_completed_normally(struct scsi_cmnd *scmd) /** * scsi_eh_done - Completion function for error handling. * @scmd: Cmd that is done. - **/ + */ static void scsi_eh_done(struct scsi_cmnd *scmd) { struct completion *eh_action; @@ -469,7 +469,7 @@ static void scsi_eh_done(struct 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(struct scsi_cmnd *scmd) { unsigned long flags; @@ -498,7 +498,7 @@ static int scsi_try_host_reset(struct scsi_cmnd *scmd) /** * scsi_try_bus_reset - ask host to perform a bus reset * @scmd: SCSI cmd to send bus reset. - **/ + */ static int scsi_try_bus_reset(struct scsi_cmnd *scmd) { unsigned long flags; @@ -533,7 +533,7 @@ static int scsi_try_bus_reset(struct scsi_cmnd *scmd) * unreliable for a given host, then the host itself needs to put a * timer on it, and set the host back to a consistent state prior to * returning. - **/ + */ static int scsi_try_bus_device_reset(struct scsi_cmnd *scmd) { int rtn; @@ -568,7 +568,7 @@ static int __scsi_try_to_abort_cmd(struct scsi_cmnd *scmd) * author of the low-level driver wishes this operation to be timed, * 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(struct scsi_cmnd *scmd) { /* @@ -589,39 +589,23 @@ static void scsi_abort_eh_cmnd(struct scsi_cmnd *scmd) } /** - * scsi_send_eh_cmnd - submit a scsi command as part of error recory + * scsi_eh_prep_cmnd - Save a scsi command info as part of error recory * @scmd: SCSI command structure to hijack - * @cmnd: CDB to send + * @ses: structure to save restore information + * @cmnd: CDB to send. Can be NULL if no new cmnd is needed * @cmnd_size: size in bytes of @cmnd - * @timeout: timeout for this request - * @copy_sense: request sense data if set to 1 + * @sense_bytes: size of sense data to copy. or 0 (if != 0 @cmnd is ignored) * - * This function is used to send a scsi command down to a target device - * as part of the error recovery process. If @copy_sense is 0 the command - * sent must be one that does not transfer any data. If @copy_sense is 1 - * the command must be REQUEST_SENSE and this functions copies out the - * sense buffer it got into @scmd->sense_buffer. - * - * Return value: - * SUCCESS or FAILED or NEEDS_RETRY - **/ -static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd, - int cmnd_size, int timeout, int copy_sense) + * This function is used to save a scsi command information before re-execution + * as part of the error recovery process. If @sense_bytes is 0 the command + * sent must be one that does not transfer any data. If @sense_bytes != 0 + * @cmnd is ignored and this functions sets up a REQUEST_SENSE command + * and cmnd buffers to read @sense_bytes into @scmd->sense_buffer. + */ +void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, struct scsi_eh_save *ses, + unsigned char *cmnd, int cmnd_size, unsigned sense_bytes) { struct scsi_device *sdev = scmd->device; - struct Scsi_Host *shost = sdev->host; - int old_result = scmd->result; - DECLARE_COMPLETION_ONSTACK(done); - unsigned long timeleft; - unsigned long flags; - struct scatterlist sgl; - unsigned char old_cmnd[MAX_COMMAND_SIZE]; - enum dma_data_direction old_data_direction; - unsigned short old_use_sg; - unsigned char old_cmd_len; - unsigned old_bufflen; - void *old_buffer; - int rtn; /* * We need saved copies of a number of fields - this is because @@ -630,43 +614,40 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd, * we will need to restore these values prior to running the actual * command. */ - old_buffer = scmd->request_buffer; - old_bufflen = scmd->request_bufflen; - memcpy(old_cmnd, scmd->cmnd, sizeof(scmd->cmnd)); - old_data_direction = scmd->sc_data_direction; - old_cmd_len = scmd->cmd_len; - old_use_sg = scmd->use_sg; - - memset(scmd->cmnd, 0, sizeof(scmd->cmnd)); - memcpy(scmd->cmnd, cmnd, cmnd_size); - - if (copy_sense) { - gfp_t gfp_mask = GFP_ATOMIC; - - if (shost->hostt->unchecked_isa_dma) - gfp_mask |= __GFP_DMA; - - sgl.page = alloc_page(gfp_mask); - if (!sgl.page) - return FAILED; - sgl.offset = 0; - sgl.length = 252; - + ses->cmd_len = scmd->cmd_len; + memcpy(ses->cmnd, scmd->cmnd, sizeof(scmd->cmnd)); + ses->data_direction = scmd->sc_data_direction; + ses->sdb = scmd->sdb; + ses->next_rq = scmd->request->next_rq; + ses->result = scmd->result; + + memset(&scmd->sdb, 0, sizeof(scmd->sdb)); + scmd->request->next_rq = NULL; + + if (sense_bytes) { + scmd->sdb.length = min_t(unsigned, SCSI_SENSE_BUFFERSIZE, + sense_bytes); + sg_init_one(&ses->sense_sgl, scmd->sense_buffer, + scmd->sdb.length); + scmd->sdb.table.sgl = &ses->sense_sgl; scmd->sc_data_direction = DMA_FROM_DEVICE; - scmd->request_bufflen = sgl.length; - scmd->request_buffer = &sgl; - scmd->use_sg = 1; + scmd->sdb.table.nents = 1; + memset(scmd->cmnd, 0, sizeof(scmd->cmnd)); + scmd->cmnd[0] = REQUEST_SENSE; + scmd->cmnd[4] = scmd->sdb.length; + scmd->cmd_len = COMMAND_SIZE(scmd->cmnd[0]); } else { - scmd->request_buffer = NULL; - scmd->request_bufflen = 0; scmd->sc_data_direction = DMA_NONE; - scmd->use_sg = 0; + if (cmnd) { + memset(scmd->cmnd, 0, sizeof(scmd->cmnd)); + memcpy(scmd->cmnd, cmnd, cmnd_size); + scmd->cmd_len = COMMAND_SIZE(scmd->cmnd[0]); + } } scmd->underflow = 0; - scmd->cmd_len = COMMAND_SIZE(scmd->cmnd[0]); - if (sdev->scsi_level <= SCSI_2) + if (sdev->scsi_level <= SCSI_2 && sdev->scsi_level != SCSI_UNKNOWN) scmd->cmnd[1] = (scmd->cmnd[1] & 0x1f) | (sdev->lun << 5 & 0xe0); @@ -674,8 +655,57 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd, * Zero the sense buffer. The scsi spec mandates that any * untransferred sense data should be interpreted as being zero. */ - memset(scmd->sense_buffer, 0, sizeof(scmd->sense_buffer)); + memset(scmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); +} +EXPORT_SYMBOL(scsi_eh_prep_cmnd); + +/** + * scsi_eh_restore_cmnd - Restore a scsi command info as part of error recory + * @scmd: SCSI command structure to restore + * @ses: saved information from a coresponding call to scsi_prep_eh_cmnd + * + * Undo any damage done by above scsi_prep_eh_cmnd(). + */ +void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd, struct scsi_eh_save *ses) +{ + /* + * Restore original data + */ + scmd->cmd_len = ses->cmd_len; + memcpy(scmd->cmnd, ses->cmnd, sizeof(scmd->cmnd)); + scmd->sc_data_direction = ses->data_direction; + scmd->sdb = ses->sdb; + scmd->request->next_rq = ses->next_rq; + scmd->result = ses->result; +} +EXPORT_SYMBOL(scsi_eh_restore_cmnd); +/** + * scsi_send_eh_cmnd - submit a scsi command as part of error recory + * @scmd: SCSI command structure to hijack + * @cmnd: CDB to send + * @cmnd_size: size in bytes of @cmnd + * @timeout: timeout for this request + * @sense_bytes: size of sense data to copy or 0 + * + * This function is used to send a scsi command down to a target device + * as part of the error recovery process. See also scsi_eh_prep_cmnd() above. + * + * Return value: + * SUCCESS or FAILED or NEEDS_RETRY + */ +static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd, + int cmnd_size, int timeout, unsigned sense_bytes) +{ + struct scsi_device *sdev = scmd->device; + struct Scsi_Host *shost = sdev->host; + DECLARE_COMPLETION_ONSTACK(done); + unsigned long timeleft; + unsigned long flags; + struct scsi_eh_save ses; + int rtn; + + scsi_eh_prep_cmnd(scmd, &ses, cmnd, cmnd_size, sense_bytes); shost->eh_action = &done; spin_lock_irqsave(shost->host_lock, flags); @@ -719,29 +749,7 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd, rtn = FAILED; } - - /* - * Last chance to have valid sense data. - */ - if (copy_sense) { - if (!SCSI_SENSE_VALID(scmd)) { - memcpy(scmd->sense_buffer, page_address(sgl.page), - sizeof(scmd->sense_buffer)); - } - __free_page(sgl.page); - } - - - /* - * Restore original data - */ - scmd->request_buffer = old_buffer; - scmd->request_bufflen = old_bufflen; - memcpy(scmd->cmnd, old_cmnd, sizeof(scmd->cmnd)); - scmd->sc_data_direction = old_data_direction; - scmd->cmd_len = old_cmd_len; - scmd->use_sg = old_use_sg; - scmd->result = old_result; + scsi_eh_restore_cmnd(scmd, &ses); return rtn; } @@ -753,13 +761,10 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd, * Some hosts automatically obtain this information, others require * 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(struct scsi_cmnd *scmd) { - static unsigned char generic_sense[6] = - {REQUEST_SENSE, 0, 0, 0, 252, 0}; - - return scsi_send_eh_cmnd(scmd, generic_sense, 6, SENSE_TIMEOUT, 1); + return scsi_send_eh_cmnd(scmd, NULL, 0, SENSE_TIMEOUT, ~0); } /** @@ -770,10 +775,10 @@ static int scsi_request_sense(struct scsi_cmnd *scmd) * Notes: * We don't want to use the normal command completion while we are are * still handling errors - it may cause other commands to be queued, - * and that would disturb what we are doing. thus we really want to + * and that would disturb what we are doing. Thus we really want to * keep a list of pending commands for final completion, and once we * are ready to leave error handling we handle completion for real. - **/ + */ void scsi_eh_finish_cmd(struct scsi_cmnd *scmd, struct list_head *done_q) { scmd->device->host->host_failed--; @@ -785,7 +790,7 @@ EXPORT_SYMBOL(scsi_eh_finish_cmd); /** * scsi_eh_get_sense - Get device sense data. * @work_q: Queue of commands to process. - * @done_q: Queue of proccessed commands.. + * @done_q: Queue of processed commands. * * Description: * See if we need to request sense information. if so, then get it @@ -793,7 +798,7 @@ EXPORT_SYMBOL(scsi_eh_finish_cmd); * * Notes: * This has the unfortunate side effect that if a shost adapter does - * not automatically request sense information, that we end up shutting + * not automatically request sense information, we end up shutting * it down before we request it. * * All drivers should request sense information internally these days, @@ -801,7 +806,7 @@ EXPORT_SYMBOL(scsi_eh_finish_cmd); * * XXX: Long term this code should go away, but that needs an audit of * all LLDDs first. - **/ + */ int scsi_eh_get_sense(struct list_head *work_q, struct list_head *done_q) { @@ -849,11 +854,11 @@ EXPORT_SYMBOL_GPL(scsi_eh_get_sense); /** * scsi_eh_tur - Send TUR to device. - * @scmd: Scsi cmd to send TUR + * @scmd: &scsi_cmnd to send TUR * * Return value: * 0 - Device is ready. 1 - Device NOT ready. - **/ + */ static int scsi_eh_tur(struct scsi_cmnd *scmd) { static unsigned char tur_command[6] = {TEST_UNIT_READY, 0, 0, 0, 0, 0}; @@ -878,17 +883,17 @@ retry_tur: } /** - * scsi_eh_abort_cmds - abort canceled commands. - * @shost: scsi host being recovered. - * @eh_done_q: list_head for processed commands. + * scsi_eh_abort_cmds - abort pending commands. + * @work_q: &list_head for pending commands. + * @done_q: &list_head for processed commands. * * Decription: * Try and see whether or not it makes sense to try and abort the - * running command. this only works out to be the case if we have one - * command that has timed out. if the command simply failed, it makes + * running command. This only works out to be the case if we have one + * command that has timed out. If the command simply failed, it makes * no sense to try and abort the command, since as far as the shost * adapter is concerned, it isn't running. - **/ + */ static int scsi_eh_abort_cmds(struct list_head *work_q, struct list_head *done_q) { @@ -922,11 +927,11 @@ static int scsi_eh_abort_cmds(struct list_head *work_q, /** * scsi_eh_try_stu - Send START_UNIT to device. - * @scmd: Scsi cmd to send START_UNIT + * @scmd: &scsi_cmnd to send START_UNIT * * Return value: * 0 - Device is ready. 1 - Device NOT ready. - **/ + */ static int scsi_eh_try_stu(struct scsi_cmnd *scmd) { static unsigned char stu_command[6] = {START_STOP, 0, 0, 0, 1, 0}; @@ -936,7 +941,7 @@ static int scsi_eh_try_stu(struct scsi_cmnd *scmd) for (i = 0; rtn == NEEDS_RETRY && i < 2; i++) rtn = scsi_send_eh_cmnd(scmd, stu_command, 6, - START_UNIT_TIMEOUT, 0); + scmd->device->timeout, 0); if (rtn == SUCCESS) return 0; @@ -947,13 +952,14 @@ static int scsi_eh_try_stu(struct scsi_cmnd *scmd) /** * scsi_eh_stu - send START_UNIT if needed - * @shost: scsi host being recovered. - * @eh_done_q: list_head for processed commands. + * @shost: &scsi host being recovered. + * @work_q: &list_head for pending commands. + * @done_q: &list_head for processed commands. * * Notes: * If commands are failing due to not ready, initializing command required, * try revalidating the device, which will end up sending a start unit. - **/ + */ static int scsi_eh_stu(struct Scsi_Host *shost, struct list_head *work_q, struct list_head *done_q) @@ -999,14 +1005,15 @@ static int scsi_eh_stu(struct Scsi_Host *shost, /** * scsi_eh_bus_device_reset - send bdr if needed * @shost: scsi host being recovered. - * @eh_done_q: list_head for processed commands. + * @work_q: &list_head for pending commands. + * @done_q: &list_head for processed commands. * * Notes: - * Try a bus device reset. still, look to see whether we have multiple + * Try a bus device reset. Still, look to see whether we have multiple * devices that are jammed or not - if we have multiple devices, it * makes no sense to try bus_device_reset - we really would need to try * a bus_reset instead. - **/ + */ static int scsi_eh_bus_device_reset(struct Scsi_Host *shost, struct list_head *work_q, struct list_head *done_q) @@ -1054,9 +1061,10 @@ static int scsi_eh_bus_device_reset(struct Scsi_Host *shost, /** * scsi_eh_bus_reset - send a bus reset - * @shost: scsi host being recovered. - * @eh_done_q: list_head for processed commands. - **/ + * @shost: &scsi host being recovered. + * @work_q: &list_head for pending commands. + * @done_q: &list_head for processed commands. + */ static int scsi_eh_bus_reset(struct Scsi_Host *shost, struct list_head *work_q, struct list_head *done_q) @@ -1113,7 +1121,7 @@ static int scsi_eh_bus_reset(struct Scsi_Host *shost, * scsi_eh_host_reset - send a host reset * @work_q: list_head for processed commands. * @done_q: list_head for processed commands. - **/ + */ static int scsi_eh_host_reset(struct list_head *work_q, struct list_head *done_q) { @@ -1148,17 +1156,15 @@ static int scsi_eh_host_reset(struct list_head *work_q, * scsi_eh_offline_sdevs - offline scsi devices that fail to recover * @work_q: list_head for processed commands. * @done_q: list_head for processed commands. - * - **/ + */ static void scsi_eh_offline_sdevs(struct list_head *work_q, struct list_head *done_q) { struct scsi_cmnd *scmd, *next; list_for_each_entry_safe(scmd, next, work_q, eh_entry) { - sdev_printk(KERN_INFO, scmd->device, - "scsi: Device offlined - not" - " ready after error recovery\n"); + sdev_printk(KERN_INFO, scmd->device, "Device offlined - " + "not ready after error recovery\n"); scsi_device_set_state(scmd->device, SDEV_OFFLINE); if (scmd->eh_eflags & SCSI_EH_CANCEL_CMD) { /* @@ -1183,7 +1189,7 @@ static void scsi_eh_offline_sdevs(struct list_head *work_q, * is woken. In cases where the error code indicates an error that * doesn't require the error handler read (i.e. we don't need to * abort/reset), this function should return SUCCESS. - **/ + */ int scsi_decide_disposition(struct scsi_cmnd *scmd) { int rtn; @@ -1364,7 +1370,7 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd) * * If scsi_allocate_request() fails for what ever reason, we * completely forget to lock the door. - **/ + */ static void scsi_eh_lock_door(struct scsi_device *sdev) { unsigned char cmnd[MAX_COMMAND_SIZE]; @@ -1388,7 +1394,7 @@ static void scsi_eh_lock_door(struct scsi_device *sdev) * Notes: * When we entered the error handler, we blocked all further i/o to * this device. we need to 'reverse' this process. - **/ + */ static void scsi_restart_operations(struct Scsi_Host *shost) { struct scsi_device *sdev; @@ -1432,9 +1438,9 @@ static void scsi_restart_operations(struct Scsi_Host *shost) /** * scsi_eh_ready_devs - check device ready state and recover if not. * @shost: host to be recovered. - * @eh_done_q: list_head for processed commands. - * - **/ + * @work_q: &list_head for pending commands. + * @done_q: &list_head for processed commands. + */ void scsi_eh_ready_devs(struct Scsi_Host *shost, struct list_head *work_q, struct list_head *done_q) @@ -1450,8 +1456,7 @@ EXPORT_SYMBOL_GPL(scsi_eh_ready_devs); /** * scsi_eh_flush_done_q - finish processed commands or retry them. * @done_q: list_head of processed commands. - * - **/ + */ void scsi_eh_flush_done_q(struct list_head *done_q) { struct scsi_cmnd *scmd, *next; @@ -1505,7 +1510,7 @@ EXPORT_SYMBOL(scsi_eh_flush_done_q); * scsi_finish_cmd() called for it. we do all of the retry stuff * here, so when we restart the host after we return it should have an * empty queue. - **/ + */ static void scsi_unjam_host(struct Scsi_Host *shost) { unsigned long flags; @@ -1532,13 +1537,11 @@ static void scsi_unjam_host(struct Scsi_Host *shost) * Notes: * This is the main error handling loop. This is run as a kernel thread * for every SCSI host and handles all error handling activity. - **/ + */ int scsi_error_handler(void *data) { struct Scsi_Host *shost = data; - current->flags |= PF_NOFREEZE; - /* * We use TASK_INTERRUPTIBLE so that the thread is not * counted against the load average as a running process. @@ -1693,9 +1696,7 @@ scsi_reset_provider(struct scsi_device *dev, int flag) memset(&scmd->cmnd, '\0', sizeof(scmd->cmnd)); scmd->scsi_done = scsi_reset_provider_done_command; - scmd->done = NULL; - scmd->request_buffer = NULL; - scmd->request_bufflen = 0; + memset(&scmd->sdb, 0, sizeof(scmd->sdb)); scmd->cmd_len = 0; @@ -1703,12 +1704,6 @@ scsi_reset_provider(struct scsi_device *dev, int flag) init_timer(&scmd->eh_timeout); - /* - * Sometimes the command can get back into the timer chain, - * so use the pid as an identifier. - */ - scmd->pid = 0; - spin_lock_irqsave(shost->host_lock, flags); shost->tmf_in_progress = 1; spin_unlock_irqrestore(shost->host_lock, flags); @@ -1770,7 +1765,7 @@ EXPORT_SYMBOL(scsi_reset_provider); * * Return value: * 1 if valid sense data information found, else 0; - **/ + */ int scsi_normalize_sense(const u8 *sense_buffer, int sb_len, struct scsi_sense_hdr *sshdr) { @@ -1820,14 +1815,12 @@ int scsi_command_normalize_sense(struct scsi_cmnd *cmd, struct scsi_sense_hdr *sshdr) { return scsi_normalize_sense(cmd->sense_buffer, - sizeof(cmd->sense_buffer), sshdr); + SCSI_SENSE_BUFFERSIZE, sshdr); } EXPORT_SYMBOL(scsi_command_normalize_sense); /** - * scsi_sense_desc_find - search for a given descriptor type in - * descriptor sense data format. - * + * scsi_sense_desc_find - search for a given descriptor type in descriptor sense data format. * @sense_buffer: byte array of descriptor format sense data * @sb_len: number of valid bytes in sense_buffer * @desc_type: value of descriptor type to find @@ -1838,7 +1831,7 @@ EXPORT_SYMBOL(scsi_command_normalize_sense); * * Return value: * pointer to start of (first) descriptor if found else NULL - **/ + */ const u8 * scsi_sense_desc_find(const u8 * sense_buffer, int sb_len, int desc_type) { @@ -1866,9 +1859,7 @@ const u8 * scsi_sense_desc_find(const u8 * sense_buffer, int sb_len, EXPORT_SYMBOL(scsi_sense_desc_find); /** - * scsi_get_sense_info_fld - attempts to get information field from - * sense data (either fixed or descriptor format) - * + * scsi_get_sense_info_fld - get information field from sense data (either fixed or descriptor format) * @sense_buffer: byte array of sense data * @sb_len: number of valid bytes in sense_buffer * @info_out: pointer to 64 integer where 8 or 4 byte information @@ -1876,7 +1867,7 @@ EXPORT_SYMBOL(scsi_sense_desc_find); * * Return value: * 1 if information field found, 0 if not found. - **/ + */ int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len, u64 * info_out) {