-/*
+/*
* linux/kernel/scsi_debug.c
* vvvvvvvvvvvvvvvvvvvvvvv Original vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
* Copyright (C) 1992 Eric Youngdale
* anything out of the ordinary is seen.
* ^^^^^^^^^^^^^^^^^^^^^^^ Original ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
*
- * This version is more generic, simulating a variable number of disk
- * (or disk like devices) sharing a common amount of RAM
- *
+ * This version is more generic, simulating a variable number of disk
+ * (or disk like devices) sharing a common amount of RAM
*
- * For documentation see http://www.torque.net/sg/sdebug25.html
+ *
+ * For documentation see http://www.torque.net/sg/sdebug26.html
*
* D. Gilbert (dpg) work for Magneto-Optical device test [20010421]
* dpg: work for devfs large number of disks [20010809]
* module options to "modprobe scsi_debug num_tgts=2" [20021221]
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/blkdev.h>
#include "scsi.h"
-#include "hosts.h"
+#include <scsi/scsi_host.h>
#include <scsi/scsicam.h>
#include <linux/stat.h>
-#ifndef LINUX_VERSION_CODE
-#include <linux/version.h>
-#endif
-
#include "scsi_logging.h"
#include "scsi_debug.h"
-static const char * scsi_debug_version_str = "Version: 1.71 (20031007)";
+#define SCSI_DEBUG_VERSION "1.79"
+static const char * scsi_debug_version_date = "20060604";
/* Additional Sense Code (ASC) used */
-#define NO_ADDED_SENSE 0x0
+#define NO_ADDITIONAL_SENSE 0x0
+#define LOGICAL_UNIT_NOT_READY 0x4
#define UNRECOVERED_READ_ERR 0x11
+#define PARAMETER_LIST_LENGTH_ERR 0x1a
#define INVALID_OPCODE 0x20
#define ADDR_OUT_OF_RANGE 0x21
#define INVALID_FIELD_IN_CDB 0x24
+#define INVALID_FIELD_IN_PARAM_LIST 0x26
#define POWERON_RESET 0x29
#define SAVING_PARAMS_UNSUP 0x39
-#define THRESHHOLD_EXCEEDED 0x5d
+#define THRESHOLD_EXCEEDED 0x5d
+#define LOW_POWER_COND_ON 0x5e
#define SDEBUG_TAGGED_QUEUING 0 /* 0 | MSG_SIMPLE_TAG | MSG_ORDERED_TAG */
/* With these defaults, this driver will make 1 host with 1 target
* (id 0) containing 1 logical unit (lun 0). That is 1 device.
*/
+#define DEF_DELAY 1
#define DEF_DEV_SIZE_MB 8
#define DEF_EVERY_NTH 0
-#define DEF_DELAY 1
-#define DEF_SCSI_LEVEL 3
+#define DEF_NUM_PARTS 0
#define DEF_OPTS 0
+#define DEF_SCSI_LEVEL 5 /* INQUIRY, byte2 [5->SPC-3] */
+#define DEF_PTYPE 0
+#define DEF_D_SENSE 0
+#define DEF_NO_LUN_0 0
+#define DEF_VIRTUAL_GB 0
/* bit mask values for scsi_debug_opts */
#define SCSI_DEBUG_OPT_NOISE 1
* - a no response is simulated if SCSI_DEBUG_OPT_TIMEOUT is set
* - a RECOVERED_ERROR is simulated on successful read and write
* commands if SCSI_DEBUG_OPT_RECOVERED_ERR is set.
+ *
+ * When "every_nth" < 0 then after "- every_nth" commands:
+ * - a no response is simulated if SCSI_DEBUG_OPT_TIMEOUT is set
+ * - a RECOVERED_ERROR is simulated on successful read and write
+ * commands if SCSI_DEBUG_OPT_RECOVERED_ERR is set.
+ * This will continue until some other action occurs (e.g. the user
+ * writing a new value (other than -1 or 1) to every_nth via sysfs).
*/
/* when 1==SCSI_DEBUG_OPT_MEDIUM_ERR, a medium error is simulated at this
/* If REPORT LUNS has luns >= 256 it can choose "flat space" (value 1)
* or "peripheral device" addressing (value 0) */
#define SAM2_LUN_ADDRESS_METHOD 0
+#define SAM2_WLUN_REPORT_LUNS 0xc101
+static int scsi_debug_add_host = DEF_NUM_HOST;
+static int scsi_debug_delay = DEF_DELAY;
static int scsi_debug_dev_size_mb = DEF_DEV_SIZE_MB;
-static int scsi_debug_num_tgts = DEF_NUM_TGTS; /* targets per host */
-static int scsi_debug_opts = DEF_OPTS;
static int scsi_debug_every_nth = DEF_EVERY_NTH;
-static int scsi_debug_cmnd_count = 0;
-static int scsi_debug_delay = DEF_DELAY;
static int scsi_debug_max_luns = DEF_MAX_LUNS;
+static int scsi_debug_num_parts = DEF_NUM_PARTS;
+static int scsi_debug_num_tgts = DEF_NUM_TGTS; /* targets per host */
+static int scsi_debug_opts = DEF_OPTS;
static int scsi_debug_scsi_level = DEF_SCSI_LEVEL;
-static int scsi_debug_add_host = DEF_NUM_HOST;
+static int scsi_debug_ptype = DEF_PTYPE; /* SCSI peripheral type (0==disk) */
+static int scsi_debug_dsense = DEF_D_SENSE;
+static int scsi_debug_no_lun_0 = DEF_NO_LUN_0;
+static int scsi_debug_virtual_gb = DEF_VIRTUAL_GB;
+
+static int scsi_debug_cmnd_count = 0;
#define DEV_READONLY(TGT) (0)
#define DEV_REMOVEABLE(TGT) (0)
-#define PERIPH_DEVICE_TYPE(TGT) (TYPE_DISK);
-static unsigned long sdebug_store_size; /* in bytes */
+static unsigned int sdebug_store_size; /* in bytes */
+static unsigned int sdebug_store_sectors;
static sector_t sdebug_capacity; /* in sectors */
/* old BIOS stuff, kernel may get rid of them but some mode sense pages
#define SECT_SIZE (1 << POW2_SECT_SIZE)
#define SECT_SIZE_PER(TGT) SECT_SIZE
+#define SDEBUG_MAX_PARTS 4
+
#define SDEBUG_SENSE_LEN 32
struct sdebug_dev_info {
unsigned int target;
unsigned int lun;
struct sdebug_host_info *sdbg_host;
+ unsigned int wlun;
char reset;
+ char stopped;
char used;
};
container_of(d, struct sdebug_host_info, dev)
static LIST_HEAD(sdebug_host_list);
-static spinlock_t sdebug_host_list_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(sdebug_host_list_lock);
typedef void (* done_funct_t) (struct scsi_cmnd *);
};
static struct sdebug_queued_cmd queued_arr[SCSI_DEBUG_CANQUEUE];
-static Scsi_Host_Template sdebug_driver_template = {
+static struct scsi_host_template sdebug_driver_template = {
.proc_info = scsi_debug_proc_info,
.name = "SCSI DEBUG",
.info = scsi_debug_info,
.bios_param = scsi_debug_biosparam,
.can_queue = SCSI_DEBUG_CANQUEUE,
.this_id = 7,
- .sg_tablesize = 64,
- .cmd_per_lun = 3,
- .max_sectors = 4096,
+ .sg_tablesize = 256,
+ .cmd_per_lun = 16,
+ .max_sectors = 0xffff,
.unchecked_isa_dma = 0,
.use_clustering = ENABLE_CLUSTERING,
.module = THIS_MODULE,
static unsigned char * fake_storep; /* ramdisk storage */
-static unsigned char spare_buff[SDEBUG_SENSE_LEN];
-
static int num_aborts = 0;
static int num_dev_resets = 0;
static int num_bus_resets = 0;
static int num_host_resets = 0;
-static spinlock_t queued_arr_lock = SPIN_LOCK_UNLOCKED;
-static rwlock_t atomic_rw = RW_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(queued_arr_lock);
+static DEFINE_RWLOCK(atomic_rw);
static char sdebug_proc_name[] = "scsi_debug";
static struct device_driver sdebug_driverfs_driver = {
.name = sdebug_proc_name,
.bus = &pseudo_lld_bus,
- .probe = sdebug_driver_probe,
- .remove = sdebug_driver_remove,
};
-static const int check_condition_result =
+static const int check_condition_result =
(DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
+static unsigned char ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0,
+ 0, 0, 0x2, 0x4b};
+static unsigned char iec_m_pg[] = {0x1c, 0xa, 0x08, 0, 0, 0, 0, 0,
+ 0, 0, 0x0, 0x0};
+
/* function declarations */
-static int resp_inquiry(unsigned char * cmd, int target, unsigned char * buff,
- int bufflen, struct sdebug_dev_info * devip);
-static int resp_mode_sense(unsigned char * cmd, int target,
- unsigned char * buff, int bufflen,
+static int resp_inquiry(struct scsi_cmnd * SCpnt, int target,
+ struct sdebug_dev_info * devip);
+static int resp_requests(struct scsi_cmnd * SCpnt,
+ struct sdebug_dev_info * devip);
+static int resp_start_stop(struct scsi_cmnd * scp,
struct sdebug_dev_info * devip);
-static int resp_read(struct scsi_cmnd * SCpnt, int upper_blk, int block,
- int num, struct sdebug_dev_info * devip);
-static int resp_write(struct scsi_cmnd * SCpnt, int upper_blk, int block,
- int num, struct sdebug_dev_info * devip);
-static int resp_report_luns(unsigned char * cmd, unsigned char * buff,
- int bufflen, struct sdebug_dev_info * devip);
+static int resp_readcap(struct scsi_cmnd * SCpnt,
+ struct sdebug_dev_info * devip);
+static int resp_readcap16(struct scsi_cmnd * SCpnt,
+ struct sdebug_dev_info * devip);
+static int resp_mode_sense(struct scsi_cmnd * scp, int target,
+ struct sdebug_dev_info * devip);
+static int resp_mode_select(struct scsi_cmnd * scp, int mselect6,
+ struct sdebug_dev_info * devip);
+static int resp_log_sense(struct scsi_cmnd * scp,
+ struct sdebug_dev_info * devip);
+static int resp_read(struct scsi_cmnd * SCpnt, unsigned long long lba,
+ unsigned int num, struct sdebug_dev_info * devip);
+static int resp_write(struct scsi_cmnd * SCpnt, unsigned long long lba,
+ unsigned int num, struct sdebug_dev_info * devip);
+static int resp_report_luns(struct scsi_cmnd * SCpnt,
+ struct sdebug_dev_info * devip);
+static int fill_from_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr,
+ int arr_len);
+static int fetch_to_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr,
+ int max_arr_len);
static void timer_intr_handler(unsigned long);
static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev);
-static void mk_sense_buffer(struct sdebug_dev_info * devip, int key,
- int asc, int asq, int inbandLen);
-static int check_reset(struct scsi_cmnd * SCpnt,
- struct sdebug_dev_info * devip);
-static int schedule_resp(struct scsi_cmnd * cmnd,
- struct sdebug_dev_info * devip,
+static void mk_sense_buffer(struct sdebug_dev_info * devip, int key,
+ int asc, int asq);
+static int check_readiness(struct scsi_cmnd * SCpnt, int reset_only,
+ struct sdebug_dev_info * devip);
+static int schedule_resp(struct scsi_cmnd * cmnd,
+ struct sdebug_dev_info * devip,
done_funct_t done, int scsi_result, int delta_jiff);
-static void init_all_queued(void);
+static void __init sdebug_build_parts(unsigned char * ramp);
+static void __init init_all_queued(void);
static void stop_all_queued(void);
static int stop_queued_cmnd(struct scsi_cmnd * cmnd);
-static int inquiry_evpd_83(unsigned char * arr, int dev_id_num,
- const char * dev_id_str, int dev_id_str_len);
-static void do_create_driverfs_files(void);
+static int inquiry_evpd_83(unsigned char * arr, int target_dev_id,
+ int dev_id_num, const char * dev_id_str,
+ int dev_id_str_len);
+static int inquiry_evpd_88(unsigned char * arr, int target_dev_id);
+static int do_create_driverfs_files(void);
static void do_remove_driverfs_files(void);
static int sdebug_add_adapter(void);
static void sdebug_remove_adapter(void);
+static void sdebug_max_tgts_luns(void);
+
static struct device pseudo_primary;
static struct bus_type pseudo_lld_bus;
-static unsigned char * scatg2virt(const struct scatterlist * sclp)
-{
- if (NULL == sclp)
- return NULL;
- else if (sclp->page)
- return (unsigned char *)page_address(sclp->page) +
- sclp->offset;
- else
- return NULL;
-}
static
int scsi_debug_queuecommand(struct scsi_cmnd * SCpnt, done_funct_t done)
{
unsigned char *cmd = (unsigned char *) SCpnt->cmnd;
- int block, upper_blk, num;
- unsigned char *buff;
+ int len, k, j;
+ unsigned int num;
+ unsigned long long lba;
int errsts = 0;
int target = SCpnt->device->id;
- int bufflen = SCpnt->request_bufflen;
- unsigned long capac;
struct sdebug_dev_info * devip = NULL;
- unsigned char * sbuff;
int inj_recovered = 0;
+ int delay_override = 0;
if (done == NULL)
return 0; /* assume mid level reprocessing command */
- if (SCpnt->use_sg) { /* just use first element */
- struct scatterlist *sgpnt = (struct scatterlist *)
- SCpnt->request_buffer;
-
- buff = scatg2virt(&sgpnt[0]);
- bufflen = sgpnt[0].length;
- /* READ and WRITE process scatterlist themselves */
- }
- else
- buff = (unsigned char *) SCpnt->request_buffer;
- if (NULL == buff) {
- buff = spare_buff; /* assume cmd moves no data */
- bufflen = SDEBUG_SENSE_LEN;
+ SCpnt->resid = 0;
+ if ((SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) && cmd) {
+ printk(KERN_INFO "scsi_debug: cmd ");
+ for (k = 0, len = SCpnt->cmd_len; k < len; ++k)
+ printk("%02x ", (int)cmd[k]);
+ printk("\n");
}
-
-
if(target == sdebug_driver_template.this_id) {
printk(KERN_INFO "scsi_debug: initiator's id used as "
"target!\n");
DID_NO_CONNECT << 16, 0);
}
- if (SCpnt->device->lun >= scsi_debug_max_luns)
- return schedule_resp(SCpnt, NULL, done,
+ if ((SCpnt->device->lun >= scsi_debug_max_luns) &&
+ (SCpnt->device->lun != SAM2_WLUN_REPORT_LUNS))
+ return schedule_resp(SCpnt, NULL, done,
DID_NO_CONNECT << 16, 0);
devip = devInfoReg(SCpnt->device);
if (NULL == devip)
- return schedule_resp(SCpnt, NULL, done,
+ return schedule_resp(SCpnt, NULL, done,
DID_NO_CONNECT << 16, 0);
- if ((scsi_debug_every_nth > 0) &&
- (++scsi_debug_cmnd_count >= scsi_debug_every_nth)) {
- scsi_debug_cmnd_count =0;
+ if ((scsi_debug_every_nth != 0) &&
+ (++scsi_debug_cmnd_count >= abs(scsi_debug_every_nth))) {
+ scsi_debug_cmnd_count = 0;
+ if (scsi_debug_every_nth < -1)
+ scsi_debug_every_nth = -1;
if (SCSI_DEBUG_OPT_TIMEOUT & scsi_debug_opts)
return 0; /* ignore command causing timeout */
else if (SCSI_DEBUG_OPT_RECOVERED_ERR & scsi_debug_opts)
inj_recovered = 1; /* to reads and writes below */
}
+ if (devip->wlun) {
+ switch (*cmd) {
+ case INQUIRY:
+ case REQUEST_SENSE:
+ case TEST_UNIT_READY:
+ case REPORT_LUNS:
+ break; /* only allowable wlun commands */
+ default:
+ if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
+ printk(KERN_INFO "scsi_debug: Opcode: 0x%x "
+ "not supported for wlun\n", *cmd);
+ mk_sense_buffer(devip, ILLEGAL_REQUEST,
+ INVALID_OPCODE, 0);
+ errsts = check_condition_result;
+ return schedule_resp(SCpnt, devip, done, errsts,
+ 0);
+ }
+ }
+
switch (*cmd) {
- case INQUIRY: /* mandatory */
- errsts = resp_inquiry(cmd, target, buff, bufflen, devip);
+ case INQUIRY: /* mandatory, ignore unit attention */
+ delay_override = 1;
+ errsts = resp_inquiry(SCpnt, target, devip);
break;
- case REQUEST_SENSE: /* mandatory */
- /* Since this driver indicates autosense by placing the
- * sense buffer in the scsi_cmnd structure in the response
- * (when SAM_STAT_CHECK_CONDITION is set), the mid level
- * shouldn't need to call REQUEST_SENSE */
- if (devip) {
- sbuff = devip->sense_buff;
- memcpy(buff, sbuff, (bufflen < SDEBUG_SENSE_LEN) ?
- bufflen : SDEBUG_SENSE_LEN);
- mk_sense_buffer(devip, 0, NO_ADDED_SENSE, 0, 7);
- } else {
- memset(buff, 0, bufflen);
- buff[0] = 0x70;
- }
+ case REQUEST_SENSE: /* mandatory, ignore unit attention */
+ delay_override = 1;
+ errsts = resp_requests(SCpnt, devip);
break;
+ case REZERO_UNIT: /* actually this is REWIND for SSC */
case START_STOP:
- errsts = check_reset(SCpnt, devip);
+ errsts = resp_start_stop(SCpnt, devip);
break;
case ALLOW_MEDIUM_REMOVAL:
- if ((errsts = check_reset(SCpnt, devip)))
+ if ((errsts = check_readiness(SCpnt, 1, devip)))
break;
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
- printk("\tMedium removal %s\n",
- cmd[4] ? "inhibited" : "enabled");
+ printk(KERN_INFO "scsi_debug: Medium removal %s\n",
+ cmd[4] ? "inhibited" : "enabled");
break;
case SEND_DIAGNOSTIC: /* mandatory */
- memset(buff, 0, bufflen);
+ errsts = check_readiness(SCpnt, 1, devip);
break;
case TEST_UNIT_READY: /* mandatory */
- memset(buff, 0, bufflen);
+ delay_override = 1;
+ errsts = check_readiness(SCpnt, 0, devip);
break;
case RESERVE:
- errsts = check_reset(SCpnt, devip);
- memset(buff, 0, bufflen);
+ errsts = check_readiness(SCpnt, 1, devip);
break;
case RESERVE_10:
- errsts = check_reset(SCpnt, devip);
- memset(buff, 0, bufflen);
+ errsts = check_readiness(SCpnt, 1, devip);
break;
case RELEASE:
- errsts = check_reset(SCpnt, devip);
- memset(buff, 0, bufflen);
+ errsts = check_readiness(SCpnt, 1, devip);
break;
case RELEASE_10:
- errsts = check_reset(SCpnt, devip);
- memset(buff, 0, bufflen);
+ errsts = check_readiness(SCpnt, 1, devip);
break;
case READ_CAPACITY:
- errsts = check_reset(SCpnt, devip);
- memset(buff, 0, bufflen);
- if (bufflen > 7) {
- capac = (unsigned long)sdebug_capacity - 1;
- buff[0] = (capac >> 24);
- buff[1] = (capac >> 16) & 0xff;
- buff[2] = (capac >> 8) & 0xff;
- buff[3] = capac & 0xff;
- buff[6] = (SECT_SIZE_PER(target) >> 8) & 0xff;
- buff[7] = SECT_SIZE_PER(target) & 0xff;
+ errsts = resp_readcap(SCpnt, devip);
+ break;
+ case SERVICE_ACTION_IN:
+ if (SAI_READ_CAPACITY_16 != cmd[1]) {
+ mk_sense_buffer(devip, ILLEGAL_REQUEST,
+ INVALID_OPCODE, 0);
+ errsts = check_condition_result;
+ break;
}
+ errsts = resp_readcap16(SCpnt, devip);
break;
case READ_16:
case READ_12:
case READ_10:
case READ_6:
- if ((errsts = check_reset(SCpnt, devip)))
+ if ((errsts = check_readiness(SCpnt, 0, devip)))
break;
- upper_blk = 0;
if ((*cmd) == READ_16) {
- upper_blk = cmd[5] + (cmd[4] << 8) +
- (cmd[3] << 16) + (cmd[2] << 24);
- block = cmd[9] + (cmd[8] << 8) +
- (cmd[7] << 16) + (cmd[6] << 24);
- num = cmd[13] + (cmd[12] << 8) +
+ for (lba = 0, j = 0; j < 8; ++j) {
+ if (j > 0)
+ lba <<= 8;
+ lba += cmd[2 + j];
+ }
+ num = cmd[13] + (cmd[12] << 8) +
(cmd[11] << 16) + (cmd[10] << 24);
} else if ((*cmd) == READ_12) {
- block = cmd[5] + (cmd[4] << 8) +
+ lba = cmd[5] + (cmd[4] << 8) +
(cmd[3] << 16) + (cmd[2] << 24);
- num = cmd[9] + (cmd[8] << 8) +
+ num = cmd[9] + (cmd[8] << 8) +
(cmd[7] << 16) + (cmd[6] << 24);
} else if ((*cmd) == READ_10) {
- block = cmd[5] + (cmd[4] << 8) +
+ lba = cmd[5] + (cmd[4] << 8) +
(cmd[3] << 16) + (cmd[2] << 24);
num = cmd[8] + (cmd[7] << 8);
- } else {
- block = cmd[3] + (cmd[2] << 8) +
+ } else { /* READ (6) */
+ lba = cmd[3] + (cmd[2] << 8) +
((cmd[1] & 0x1f) << 16);
- num = cmd[4];
+ num = (0 == cmd[4]) ? 256 : cmd[4];
}
- errsts = resp_read(SCpnt, upper_blk, block, num, devip);
+ errsts = resp_read(SCpnt, lba, num, devip);
if (inj_recovered && (0 == errsts)) {
- mk_sense_buffer(devip, RECOVERED_ERROR,
- THRESHHOLD_EXCEEDED, 0, 18);
+ mk_sense_buffer(devip, RECOVERED_ERROR,
+ THRESHOLD_EXCEEDED, 0);
errsts = check_condition_result;
}
break;
- case REPORT_LUNS:
- errsts = resp_report_luns(cmd, buff, bufflen, devip);
+ case REPORT_LUNS: /* mandatory, ignore unit attention */
+ delay_override = 1;
+ errsts = resp_report_luns(SCpnt, devip);
+ break;
+ case VERIFY: /* 10 byte SBC-2 command */
+ errsts = check_readiness(SCpnt, 0, devip);
break;
case WRITE_16:
case WRITE_12:
case WRITE_10:
case WRITE_6:
- if ((errsts = check_reset(SCpnt, devip)))
+ if ((errsts = check_readiness(SCpnt, 0, devip)))
break;
- upper_blk = 0;
if ((*cmd) == WRITE_16) {
- upper_blk = cmd[5] + (cmd[4] << 8) +
- (cmd[3] << 16) + (cmd[2] << 24);
- block = cmd[9] + (cmd[8] << 8) +
- (cmd[7] << 16) + (cmd[6] << 24);
- num = cmd[13] + (cmd[12] << 8) +
+ for (lba = 0, j = 0; j < 8; ++j) {
+ if (j > 0)
+ lba <<= 8;
+ lba += cmd[2 + j];
+ }
+ num = cmd[13] + (cmd[12] << 8) +
(cmd[11] << 16) + (cmd[10] << 24);
} else if ((*cmd) == WRITE_12) {
- block = cmd[5] + (cmd[4] << 8) +
+ lba = cmd[5] + (cmd[4] << 8) +
(cmd[3] << 16) + (cmd[2] << 24);
- num = cmd[9] + (cmd[8] << 8) +
+ num = cmd[9] + (cmd[8] << 8) +
(cmd[7] << 16) + (cmd[6] << 24);
} else if ((*cmd) == WRITE_10) {
- block = cmd[5] + (cmd[4] << 8) +
+ lba = cmd[5] + (cmd[4] << 8) +
(cmd[3] << 16) + (cmd[2] << 24);
num = cmd[8] + (cmd[7] << 8);
- } else {
- block = cmd[3] + (cmd[2] << 8) +
+ } else { /* WRITE (6) */
+ lba = cmd[3] + (cmd[2] << 8) +
((cmd[1] & 0x1f) << 16);
- num = cmd[4];
+ num = (0 == cmd[4]) ? 256 : cmd[4];
}
- errsts = resp_write(SCpnt, upper_blk, block, num, devip);
+ errsts = resp_write(SCpnt, lba, num, devip);
if (inj_recovered && (0 == errsts)) {
- mk_sense_buffer(devip, RECOVERED_ERROR,
- THRESHHOLD_EXCEEDED, 0, 18);
+ mk_sense_buffer(devip, RECOVERED_ERROR,
+ THRESHOLD_EXCEEDED, 0);
errsts = check_condition_result;
}
break;
case MODE_SENSE:
case MODE_SENSE_10:
- errsts = resp_mode_sense(cmd, target, buff, bufflen, devip);
+ errsts = resp_mode_sense(SCpnt, target, devip);
+ break;
+ case MODE_SELECT:
+ errsts = resp_mode_select(SCpnt, 1, devip);
+ break;
+ case MODE_SELECT_10:
+ errsts = resp_mode_select(SCpnt, 0, devip);
+ break;
+ case LOG_SENSE:
+ errsts = resp_log_sense(SCpnt, devip);
break;
case SYNCHRONIZE_CACHE:
- memset(buff, 0, bufflen);
+ delay_override = 1;
+ errsts = check_readiness(SCpnt, 0, devip);
break;
default:
- if ((errsts = check_reset(SCpnt, devip)))
- break;
- mk_sense_buffer(devip, ILLEGAL_REQUEST, INVALID_OPCODE, 0, 18);
+ if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
+ printk(KERN_INFO "scsi_debug: Opcode: 0x%x not "
+ "supported\n", *cmd);
+ if ((errsts = check_readiness(SCpnt, 1, devip)))
+ break; /* Unit attention takes precedence */
+ mk_sense_buffer(devip, ILLEGAL_REQUEST, INVALID_OPCODE, 0);
errsts = check_condition_result;
break;
}
- return schedule_resp(SCpnt, devip, done, errsts, scsi_debug_delay);
+ return schedule_resp(SCpnt, devip, done, errsts,
+ (delay_override ? 0 : scsi_debug_delay));
}
-static int scsi_debug_ioctl(struct scsi_device *dev, int cmd, void *arg)
+static int scsi_debug_ioctl(struct scsi_device *dev, int cmd, void __user *arg)
{
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) {
printk(KERN_INFO "scsi_debug: ioctl: cmd=0x%x\n", cmd);
/* return -ENOTTY; // correct return but upsets fdisk */
}
-static int check_reset(struct scsi_cmnd * SCpnt, struct sdebug_dev_info * devip)
+static int check_readiness(struct scsi_cmnd * SCpnt, int reset_only,
+ struct sdebug_dev_info * devip)
{
if (devip->reset) {
+ if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
+ printk(KERN_INFO "scsi_debug: Reporting Unit "
+ "attention: power on reset\n");
devip->reset = 0;
- mk_sense_buffer(devip, UNIT_ATTENTION, POWERON_RESET, 0, 18);
+ mk_sense_buffer(devip, UNIT_ATTENTION, POWERON_RESET, 0);
+ return check_condition_result;
+ }
+ if ((0 == reset_only) && devip->stopped) {
+ if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
+ printk(KERN_INFO "scsi_debug: Reporting Not "
+ "ready: initializing command required\n");
+ mk_sense_buffer(devip, NOT_READY, LOGICAL_UNIT_NOT_READY,
+ 0x2);
return check_condition_result;
}
return 0;
}
-#define SDEBUG_LONG_INQ_SZ 58
-#define SDEBUG_MAX_INQ_ARR_SZ 128
+/* Returns 0 if ok else (DID_ERROR << 16). Sets scp->resid . */
+static int fill_from_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr,
+ int arr_len)
+{
+ int k, req_len, act_len, len, active;
+ void * kaddr;
+ void * kaddr_off;
+ struct scatterlist * sgpnt;
+
+ if (0 == scp->request_bufflen)
+ return 0;
+ if (NULL == scp->request_buffer)
+ return (DID_ERROR << 16);
+ if (! ((scp->sc_data_direction == DMA_BIDIRECTIONAL) ||
+ (scp->sc_data_direction == DMA_FROM_DEVICE)))
+ return (DID_ERROR << 16);
+ if (0 == scp->use_sg) {
+ req_len = scp->request_bufflen;
+ act_len = (req_len < arr_len) ? req_len : arr_len;
+ memcpy(scp->request_buffer, arr, act_len);
+ if (scp->resid)
+ scp->resid -= act_len;
+ else
+ scp->resid = req_len - act_len;
+ return 0;
+ }
+ sgpnt = (struct scatterlist *)scp->request_buffer;
+ active = 1;
+ for (k = 0, req_len = 0, act_len = 0; k < scp->use_sg; ++k, ++sgpnt) {
+ if (active) {
+ kaddr = (unsigned char *)
+ kmap_atomic(sgpnt->page, KM_USER0);
+ if (NULL == kaddr)
+ return (DID_ERROR << 16);
+ kaddr_off = (unsigned char *)kaddr + sgpnt->offset;
+ len = sgpnt->length;
+ if ((req_len + len) > arr_len) {
+ active = 0;
+ len = arr_len - req_len;
+ }
+ memcpy(kaddr_off, arr + req_len, len);
+ kunmap_atomic(kaddr, KM_USER0);
+ act_len += len;
+ }
+ req_len += sgpnt->length;
+ }
+ if (scp->resid)
+ scp->resid -= act_len;
+ else
+ scp->resid = req_len - act_len;
+ return 0;
+}
+
+/* Returns number of bytes fetched into 'arr' or -1 if error. */
+static int fetch_to_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr,
+ int max_arr_len)
+{
+ int k, req_len, len, fin;
+ void * kaddr;
+ void * kaddr_off;
+ struct scatterlist * sgpnt;
+
+ if (0 == scp->request_bufflen)
+ return 0;
+ if (NULL == scp->request_buffer)
+ return -1;
+ if (! ((scp->sc_data_direction == DMA_BIDIRECTIONAL) ||
+ (scp->sc_data_direction == DMA_TO_DEVICE)))
+ return -1;
+ if (0 == scp->use_sg) {
+ req_len = scp->request_bufflen;
+ len = (req_len < max_arr_len) ? req_len : max_arr_len;
+ memcpy(arr, scp->request_buffer, len);
+ return len;
+ }
+ sgpnt = (struct scatterlist *)scp->request_buffer;
+ for (k = 0, req_len = 0, fin = 0; k < scp->use_sg; ++k, ++sgpnt) {
+ kaddr = (unsigned char *)kmap_atomic(sgpnt->page, KM_USER0);
+ if (NULL == kaddr)
+ return -1;
+ kaddr_off = (unsigned char *)kaddr + sgpnt->offset;
+ len = sgpnt->length;
+ if ((req_len + len) > max_arr_len) {
+ len = max_arr_len - req_len;
+ fin = 1;
+ }
+ memcpy(arr + req_len, kaddr_off, len);
+ kunmap_atomic(kaddr, KM_USER0);
+ if (fin)
+ return req_len + len;
+ req_len += sgpnt->length;
+ }
+ return req_len;
+}
+
-static const char * vendor_id = "Linux ";
-static const char * product_id = "scsi_debug ";
-static const char * product_rev = "0004";
+static const char * inq_vendor_id = "Linux ";
+static const char * inq_product_id = "scsi_debug ";
+static const char * inq_product_rev = "0004";
-static int inquiry_evpd_83(unsigned char * arr, int dev_id_num,
- const char * dev_id_str, int dev_id_str_len)
+static int inquiry_evpd_83(unsigned char * arr, int target_dev_id,
+ int dev_id_num, const char * dev_id_str,
+ int dev_id_str_len)
{
- int num;
+ int num, port_a;
+ char b[32];
- /* Two identification descriptors: */
+ port_a = target_dev_id + 1;
/* T10 vendor identifier field format (faked) */
arr[0] = 0x2; /* ASCII */
arr[1] = 0x1;
arr[2] = 0x0;
- memcpy(&arr[4], vendor_id, 8);
- memcpy(&arr[12], product_id, 16);
+ memcpy(&arr[4], inq_vendor_id, 8);
+ memcpy(&arr[12], inq_product_id, 16);
memcpy(&arr[28], dev_id_str, dev_id_str_len);
num = 8 + 16 + dev_id_str_len;
arr[3] = num;
num += 4;
- /* NAA IEEE registered identifier (faked) */
- arr[num] = 0x1; /* binary */
- arr[num + 1] = 0x3;
- arr[num + 2] = 0x0;
- arr[num + 3] = 0x8;
- arr[num + 4] = 0x51; /* ieee company id=0x123456 (faked) */
- arr[num + 5] = 0x23;
- arr[num + 6] = 0x45;
- arr[num + 7] = 0x60;
- arr[num + 8] = (dev_id_num >> 24);
- arr[num + 9] = (dev_id_num >> 16) & 0xff;
- arr[num + 10] = (dev_id_num >> 8) & 0xff;
- arr[num + 11] = dev_id_num & 0xff;
- return num + 12;
-}
-
-static int resp_inquiry(unsigned char * cmd, int target, unsigned char * buff,
- int bufflen, struct sdebug_dev_info * devip)
+ if (dev_id_num >= 0) {
+ /* NAA-5, Logical unit identifier (binary) */
+ arr[num++] = 0x1; /* binary (not necessarily sas) */
+ arr[num++] = 0x3; /* PIV=0, lu, naa */
+ arr[num++] = 0x0;
+ arr[num++] = 0x8;
+ arr[num++] = 0x53; /* naa-5 ieee company id=0x333333 (fake) */
+ arr[num++] = 0x33;
+ arr[num++] = 0x33;
+ arr[num++] = 0x30;
+ arr[num++] = (dev_id_num >> 24);
+ arr[num++] = (dev_id_num >> 16) & 0xff;
+ arr[num++] = (dev_id_num >> 8) & 0xff;
+ arr[num++] = dev_id_num & 0xff;
+ /* Target relative port number */
+ arr[num++] = 0x61; /* proto=sas, binary */
+ arr[num++] = 0x94; /* PIV=1, target port, rel port */
+ arr[num++] = 0x0; /* reserved */
+ arr[num++] = 0x4; /* length */
+ arr[num++] = 0x0; /* reserved */
+ arr[num++] = 0x0; /* reserved */
+ arr[num++] = 0x0;
+ arr[num++] = 0x1; /* relative port A */
+ }
+ /* NAA-5, Target port identifier */
+ arr[num++] = 0x61; /* proto=sas, binary */
+ arr[num++] = 0x93; /* piv=1, target port, naa */
+ arr[num++] = 0x0;
+ arr[num++] = 0x8;
+ arr[num++] = 0x52; /* naa-5, company id=0x222222 (fake) */
+ arr[num++] = 0x22;
+ arr[num++] = 0x22;
+ arr[num++] = 0x20;
+ arr[num++] = (port_a >> 24);
+ arr[num++] = (port_a >> 16) & 0xff;
+ arr[num++] = (port_a >> 8) & 0xff;
+ arr[num++] = port_a & 0xff;
+ /* NAA-5, Target device identifier */
+ arr[num++] = 0x61; /* proto=sas, binary */
+ arr[num++] = 0xa3; /* piv=1, target device, naa */
+ arr[num++] = 0x0;
+ arr[num++] = 0x8;
+ arr[num++] = 0x52; /* naa-5, company id=0x222222 (fake) */
+ arr[num++] = 0x22;
+ arr[num++] = 0x22;
+ arr[num++] = 0x20;
+ arr[num++] = (target_dev_id >> 24);
+ arr[num++] = (target_dev_id >> 16) & 0xff;
+ arr[num++] = (target_dev_id >> 8) & 0xff;
+ arr[num++] = target_dev_id & 0xff;
+ /* SCSI name string: Target device identifier */
+ arr[num++] = 0x63; /* proto=sas, UTF-8 */
+ arr[num++] = 0xa8; /* piv=1, target device, SCSI name string */
+ arr[num++] = 0x0;
+ arr[num++] = 24;
+ memcpy(arr + num, "naa.52222220", 12);
+ num += 12;
+ snprintf(b, sizeof(b), "%08X", target_dev_id);
+ memcpy(arr + num, b, 8);
+ num += 8;
+ memset(arr + num, 0, 4);
+ num += 4;
+ return num;
+}
+
+
+static unsigned char vpd84_data[] = {
+/* from 4th byte */ 0x22,0x22,0x22,0x0,0xbb,0x0,
+ 0x22,0x22,0x22,0x0,0xbb,0x1,
+ 0x22,0x22,0x22,0x0,0xbb,0x2,
+};
+
+static int inquiry_evpd_84(unsigned char * arr)
+{
+ memcpy(arr, vpd84_data, sizeof(vpd84_data));
+ return sizeof(vpd84_data);
+}
+
+static int inquiry_evpd_85(unsigned char * arr)
+{
+ int num = 0;
+ const char * na1 = "https://www.kernel.org/config";
+ const char * na2 = "http://www.kernel.org/log";
+ int plen, olen;
+
+ arr[num++] = 0x1; /* lu, storage config */
+ arr[num++] = 0x0; /* reserved */
+ arr[num++] = 0x0;
+ olen = strlen(na1);
+ plen = olen + 1;
+ if (plen % 4)
+ plen = ((plen / 4) + 1) * 4;
+ arr[num++] = plen; /* length, null termianted, padded */
+ memcpy(arr + num, na1, olen);
+ memset(arr + num + olen, 0, plen - olen);
+ num += plen;
+
+ arr[num++] = 0x4; /* lu, logging */
+ arr[num++] = 0x0; /* reserved */
+ arr[num++] = 0x0;
+ olen = strlen(na2);
+ plen = olen + 1;
+ if (plen % 4)
+ plen = ((plen / 4) + 1) * 4;
+ arr[num++] = plen; /* length, null terminated, padded */
+ memcpy(arr + num, na2, olen);
+ memset(arr + num + olen, 0, plen - olen);
+ num += plen;
+
+ return num;
+}
+
+/* SCSI ports VPD page */
+static int inquiry_evpd_88(unsigned char * arr, int target_dev_id)
+{
+ int num = 0;
+ int port_a, port_b;
+
+ port_a = target_dev_id + 1;
+ port_b = port_a + 1;
+ arr[num++] = 0x0; /* reserved */
+ arr[num++] = 0x0; /* reserved */
+ arr[num++] = 0x0;
+ arr[num++] = 0x1; /* relative port 1 (primary) */
+ memset(arr + num, 0, 6);
+ num += 6;
+ arr[num++] = 0x0;
+ arr[num++] = 12; /* length tp descriptor */
+ /* naa-5 target port identifier (A) */
+ arr[num++] = 0x61; /* proto=sas, binary */
+ arr[num++] = 0x93; /* PIV=1, target port, NAA */
+ arr[num++] = 0x0; /* reserved */
+ arr[num++] = 0x8; /* length */
+ arr[num++] = 0x52; /* NAA-5, company_id=0x222222 (fake) */
+ arr[num++] = 0x22;
+ arr[num++] = 0x22;
+ arr[num++] = 0x20;
+ arr[num++] = (port_a >> 24);
+ arr[num++] = (port_a >> 16) & 0xff;
+ arr[num++] = (port_a >> 8) & 0xff;
+ arr[num++] = port_a & 0xff;
+
+ arr[num++] = 0x0; /* reserved */
+ arr[num++] = 0x0; /* reserved */
+ arr[num++] = 0x0;
+ arr[num++] = 0x2; /* relative port 2 (secondary) */
+ memset(arr + num, 0, 6);
+ num += 6;
+ arr[num++] = 0x0;
+ arr[num++] = 12; /* length tp descriptor */
+ /* naa-5 target port identifier (B) */
+ arr[num++] = 0x61; /* proto=sas, binary */
+ arr[num++] = 0x93; /* PIV=1, target port, NAA */
+ arr[num++] = 0x0; /* reserved */
+ arr[num++] = 0x8; /* length */
+ arr[num++] = 0x52; /* NAA-5, company_id=0x222222 (fake) */
+ arr[num++] = 0x22;
+ arr[num++] = 0x22;
+ arr[num++] = 0x20;
+ arr[num++] = (port_b >> 24);
+ arr[num++] = (port_b >> 16) & 0xff;
+ arr[num++] = (port_b >> 8) & 0xff;
+ arr[num++] = port_b & 0xff;
+
+ return num;
+}
+
+
+static unsigned char vpd89_data[] = {
+/* from 4th byte */ 0,0,0,0,
+'l','i','n','u','x',' ',' ',' ',
+'S','A','T',' ','s','c','s','i','_','d','e','b','u','g',' ',' ',
+'1','2','3','4',
+0x34,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+0xec,0,0,0,
+0x5a,0xc,0xff,0x3f,0x37,0xc8,0x10,0,0,0,0,0,0x3f,0,0,0,
+0,0,0,0,0x58,0x58,0x58,0x58,0x58,0x58,0x58,0x58,0x20,0x20,0x20,0x20,
+0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0,0,0,0x40,0x4,0,0x2e,0x33,
+0x38,0x31,0x20,0x20,0x20,0x20,0x54,0x53,0x38,0x33,0x30,0x30,0x33,0x31,
+0x53,0x41,
+0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
+0x20,0x20,
+0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
+0x10,0x80,
+0,0,0,0x2f,0,0,0,0x2,0,0x2,0x7,0,0xff,0xff,0x1,0,
+0x3f,0,0xc1,0xff,0x3e,0,0x10,0x1,0xb0,0xf8,0x50,0x9,0,0,0x7,0,
+0x3,0,0x78,0,0x78,0,0xf0,0,0x78,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0x2,0,0,0,0,0,0,0,
+0x7e,0,0x1b,0,0x6b,0x34,0x1,0x7d,0x3,0x40,0x69,0x34,0x1,0x3c,0x3,0x40,
+0x7f,0x40,0,0,0,0,0xfe,0xfe,0,0,0,0,0,0xfe,0,0,
+0,0,0,0,0,0,0,0,0xb0,0xf8,0x50,0x9,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0x1,0,0xb0,0xf8,0x50,0x9,0xb0,0xf8,0x50,0x9,0x20,0x20,0x2,0,0xb6,0x42,
+0,0x80,0x8a,0,0x6,0x3c,0xa,0x3c,0xff,0xff,0xc6,0x7,0,0x1,0,0x8,
+0xf0,0xf,0,0x10,0x2,0,0x30,0,0,0,0,0,0,0,0x6,0xfe,
+0,0,0x2,0,0x50,0,0x8a,0,0x4f,0x95,0,0,0x21,0,0xb,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0xa5,0x51,
+};
+
+static int inquiry_evpd_89(unsigned char * arr)
+{
+ memcpy(arr, vpd89_data, sizeof(vpd89_data));
+ return sizeof(vpd89_data);
+}
+
+
+static unsigned char vpdb0_data[] = {
+ /* from 4th byte */ 0,0,0,4,
+ 0,0,0x4,0,
+ 0,0,0,64,
+};
+
+static int inquiry_evpd_b0(unsigned char * arr)
+{
+ memcpy(arr, vpdb0_data, sizeof(vpdb0_data));
+ if (sdebug_store_sectors > 0x400) {
+ arr[4] = (sdebug_store_sectors >> 24) & 0xff;
+ arr[5] = (sdebug_store_sectors >> 16) & 0xff;
+ arr[6] = (sdebug_store_sectors >> 8) & 0xff;
+ arr[7] = sdebug_store_sectors & 0xff;
+ }
+ return sizeof(vpdb0_data);
+}
+
+
+#define SDEBUG_LONG_INQ_SZ 96
+#define SDEBUG_MAX_INQ_ARR_SZ 584
+
+static int resp_inquiry(struct scsi_cmnd * scp, int target,
+ struct sdebug_dev_info * devip)
{
unsigned char pq_pdt;
unsigned char arr[SDEBUG_MAX_INQ_ARR_SZ];
- int min_len = bufflen > SDEBUG_MAX_INQ_ARR_SZ ?
- SDEBUG_MAX_INQ_ARR_SZ : bufflen;
+ unsigned char *cmd = (unsigned char *)scp->cmnd;
+ int alloc_len, n;
- if (bufflen < cmd[4])
- printk(KERN_INFO "scsi_debug: inquiry: bufflen=%d "
- "< alloc_length=%d\n", bufflen, (int)cmd[4]);
- memset(buff, 0, bufflen);
+ alloc_len = (cmd[3] << 8) + cmd[4];
memset(arr, 0, SDEBUG_MAX_INQ_ARR_SZ);
- pq_pdt = PERIPH_DEVICE_TYPE(target);
+ if (devip->wlun)
+ pq_pdt = 0x1e; /* present, wlun */
+ else if (scsi_debug_no_lun_0 && (0 == devip->lun))
+ pq_pdt = 0x7f; /* not present, no device type */
+ else
+ pq_pdt = (scsi_debug_ptype & 0x1f);
arr[0] = pq_pdt;
if (0x2 & cmd[1]) { /* CMDDT bit set */
mk_sense_buffer(devip, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB,
- 0, 18);
+ 0);
return check_condition_result;
} else if (0x1 & cmd[1]) { /* EVPD bit set */
- int dev_id_num, len;
- char dev_id_str[6];
+ int lu_id_num, target_dev_id, len;
+ char lu_id_str[6];
+ int host_no = devip->sdbg_host->shost->host_no;
- dev_id_num = ((devip->sdbg_host->shost->host_no + 1) * 2000) +
- (devip->target * 1000) + devip->lun;
- len = scnprintf(dev_id_str, 6, "%d", dev_id_num);
+ lu_id_num = devip->wlun ? -1 : (((host_no + 1) * 2000) +
+ (devip->target * 1000) + devip->lun);
+ target_dev_id = ((host_no + 1) * 2000) +
+ (devip->target * 1000) - 3;
+ len = scnprintf(lu_id_str, 6, "%d", lu_id_num);
if (0 == cmd[2]) { /* supported vital product data pages */
- arr[3] = 3;
- arr[4] = 0x0; /* this page */
- arr[5] = 0x80; /* unit serial number */
- arr[6] = 0x83; /* device identification */
+ arr[1] = cmd[2]; /*sanity */
+ n = 4;
+ arr[n++] = 0x0; /* this page */
+ arr[n++] = 0x80; /* unit serial number */
+ arr[n++] = 0x83; /* device identification */
+ arr[n++] = 0x84; /* software interface ident. */
+ arr[n++] = 0x85; /* management network addresses */
+ arr[n++] = 0x86; /* extended inquiry */
+ arr[n++] = 0x87; /* mode page policy */
+ arr[n++] = 0x88; /* SCSI ports */
+ arr[n++] = 0x89; /* ATA information */
+ arr[n++] = 0xb0; /* Block limits (SBC) */
+ arr[3] = n - 4; /* number of supported VPD pages */
} else if (0x80 == cmd[2]) { /* unit serial number */
- arr[1] = 0x80;
+ arr[1] = cmd[2]; /*sanity */
arr[3] = len;
- memcpy(&arr[4], dev_id_str, len);
+ memcpy(&arr[4], lu_id_str, len);
} else if (0x83 == cmd[2]) { /* device identification */
- arr[1] = 0x83;
- arr[3] = inquiry_evpd_83(&arr[4], dev_id_num,
- dev_id_str, len);
+ arr[1] = cmd[2]; /*sanity */
+ arr[3] = inquiry_evpd_83(&arr[4], target_dev_id,
+ lu_id_num, lu_id_str, len);
+ } else if (0x84 == cmd[2]) { /* Software interface ident. */
+ arr[1] = cmd[2]; /*sanity */
+ arr[3] = inquiry_evpd_84(&arr[4]);
+ } else if (0x85 == cmd[2]) { /* Management network addresses */
+ arr[1] = cmd[2]; /*sanity */
+ arr[3] = inquiry_evpd_85(&arr[4]);
+ } else if (0x86 == cmd[2]) { /* extended inquiry */
+ arr[1] = cmd[2]; /*sanity */
+ arr[3] = 0x3c; /* number of following entries */
+ arr[4] = 0x0; /* no protection stuff */
+ arr[5] = 0x7; /* head of q, ordered + simple q's */
+ } else if (0x87 == cmd[2]) { /* mode page policy */
+ arr[1] = cmd[2]; /*sanity */
+ arr[3] = 0x8; /* number of following entries */
+ arr[4] = 0x2; /* disconnect-reconnect mp */
+ arr[6] = 0x80; /* mlus, shared */
+ arr[8] = 0x18; /* protocol specific lu */
+ arr[10] = 0x82; /* mlus, per initiator port */
+ } else if (0x88 == cmd[2]) { /* SCSI Ports */
+ arr[1] = cmd[2]; /*sanity */
+ arr[3] = inquiry_evpd_88(&arr[4], target_dev_id);
+ } else if (0x89 == cmd[2]) { /* ATA information */
+ arr[1] = cmd[2]; /*sanity */
+ n = inquiry_evpd_89(&arr[4]);
+ arr[2] = (n >> 8);
+ arr[3] = (n & 0xff);
+ } else if (0xb0 == cmd[2]) { /* Block limits (SBC) */
+ arr[1] = cmd[2]; /*sanity */
+ arr[3] = inquiry_evpd_b0(&arr[4]);
} else {
/* Illegal request, invalid field in cdb */
- mk_sense_buffer(devip, ILLEGAL_REQUEST,
- INVALID_FIELD_IN_CDB, 0, 18);
+ mk_sense_buffer(devip, ILLEGAL_REQUEST,
+ INVALID_FIELD_IN_CDB, 0);
return check_condition_result;
}
- memcpy(buff, arr, min_len);
- return 0;
+ len = min(((arr[2] << 8) + arr[3]) + 4, alloc_len);
+ return fill_from_dev_buffer(scp, arr,
+ min(len, SDEBUG_MAX_INQ_ARR_SZ));
}
/* drops through here for a standard inquiry */
arr[1] = DEV_REMOVEABLE(target) ? 0x80 : 0; /* Removable disk */
arr[2] = scsi_debug_scsi_level;
+ arr[3] = 2; /* response_data_format==2 */
arr[4] = SDEBUG_LONG_INQ_SZ - 5;
- arr[7] = 0x3a; /* claim: WBUS16, SYNC, LINKED + CMDQUE */
- memcpy(&arr[8], vendor_id, 8);
- memcpy(&arr[16], product_id, 16);
- memcpy(&arr[32], product_rev, 4);
- memcpy(buff, arr, min_len);
+ arr[6] = 0x10; /* claim: MultiP */
+ /* arr[6] |= 0x40; ... claim: EncServ (enclosure services) */
+ arr[7] = 0xa; /* claim: LINKED + CMDQUE */
+ memcpy(&arr[8], inq_vendor_id, 8);
+ memcpy(&arr[16], inq_product_id, 16);
+ memcpy(&arr[32], inq_product_rev, 4);
+ /* version descriptors (2 bytes each) follow */
+ arr[58] = 0x0; arr[59] = 0x77; /* SAM-3 ANSI */
+ arr[60] = 0x3; arr[61] = 0x14; /* SPC-3 ANSI */
+ n = 62;
+ if (scsi_debug_ptype == 0) {
+ arr[n++] = 0x3; arr[n++] = 0x3d; /* SBC-2 ANSI */
+ } else if (scsi_debug_ptype == 1) {
+ arr[n++] = 0x3; arr[n++] = 0x60; /* SSC-2 no version */
+ }
+ arr[n++] = 0xc; arr[n++] = 0xf; /* SAS-1.1 rev 10 */
+ return fill_from_dev_buffer(scp, arr,
+ min(alloc_len, SDEBUG_LONG_INQ_SZ));
+}
+
+static int resp_requests(struct scsi_cmnd * scp,
+ struct sdebug_dev_info * devip)
+{
+ unsigned char * sbuff;
+ unsigned char *cmd = (unsigned char *)scp->cmnd;
+ unsigned char arr[SDEBUG_SENSE_LEN];
+ int want_dsense;
+ int len = 18;
+
+ memset(arr, 0, sizeof(arr));
+ if (devip->reset == 1)
+ mk_sense_buffer(devip, 0, NO_ADDITIONAL_SENSE, 0);
+ want_dsense = !!(cmd[1] & 1) || scsi_debug_dsense;
+ sbuff = devip->sense_buff;
+ if ((iec_m_pg[2] & 0x4) && (6 == (iec_m_pg[3] & 0xf))) {
+ if (want_dsense) {
+ arr[0] = 0x72;
+ arr[1] = 0x0; /* NO_SENSE in sense_key */
+ arr[2] = THRESHOLD_EXCEEDED;
+ arr[3] = 0xff; /* TEST set and MRIE==6 */
+ } else {
+ arr[0] = 0x70;
+ arr[2] = 0x0; /* NO_SENSE in sense_key */
+ arr[7] = 0xa; /* 18 byte sense buffer */
+ arr[12] = THRESHOLD_EXCEEDED;
+ arr[13] = 0xff; /* TEST set and MRIE==6 */
+ }
+ } else if (devip->stopped) {
+ if (want_dsense) {
+ arr[0] = 0x72;
+ arr[1] = 0x0; /* NO_SENSE in sense_key */
+ arr[2] = LOW_POWER_COND_ON;
+ arr[3] = 0x0; /* TEST set and MRIE==6 */
+ } else {
+ arr[0] = 0x70;
+ arr[2] = 0x0; /* NO_SENSE in sense_key */
+ arr[7] = 0xa; /* 18 byte sense buffer */
+ arr[12] = LOW_POWER_COND_ON;
+ arr[13] = 0x0; /* TEST set and MRIE==6 */
+ }
+ } else {
+ memcpy(arr, sbuff, SDEBUG_SENSE_LEN);
+ if ((cmd[1] & 1) && (! scsi_debug_dsense)) {
+ /* DESC bit set and sense_buff in fixed format */
+ memset(arr, 0, sizeof(arr));
+ arr[0] = 0x72;
+ arr[1] = sbuff[2]; /* sense key */
+ arr[2] = sbuff[12]; /* asc */
+ arr[3] = sbuff[13]; /* ascq */
+ len = 8;
+ }
+ }
+ mk_sense_buffer(devip, 0, NO_ADDITIONAL_SENSE, 0);
+ return fill_from_dev_buffer(scp, arr, len);
+}
+
+static int resp_start_stop(struct scsi_cmnd * scp,
+ struct sdebug_dev_info * devip)
+{
+ unsigned char *cmd = (unsigned char *)scp->cmnd;
+ int power_cond, errsts, start;
+
+ if ((errsts = check_readiness(scp, 1, devip)))
+ return errsts;
+ power_cond = (cmd[4] & 0xf0) >> 4;
+ if (power_cond) {
+ mk_sense_buffer(devip, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB,
+ 0);
+ return check_condition_result;
+ }
+ start = cmd[4] & 1;
+ if (start == devip->stopped)
+ devip->stopped = !start;
return 0;
}
-/* <<Following mode page info copied from ST318451LW>> */
+#define SDEBUG_READCAP_ARR_SZ 8
+static int resp_readcap(struct scsi_cmnd * scp,
+ struct sdebug_dev_info * devip)
+{
+ unsigned char arr[SDEBUG_READCAP_ARR_SZ];
+ unsigned int capac;
+ int errsts;
+
+ if ((errsts = check_readiness(scp, 1, devip)))
+ return errsts;
+ /* following just in case virtual_gb changed */
+ if (scsi_debug_virtual_gb > 0) {
+ sdebug_capacity = 2048 * 1024;
+ sdebug_capacity *= scsi_debug_virtual_gb;
+ } else
+ sdebug_capacity = sdebug_store_sectors;
+ memset(arr, 0, SDEBUG_READCAP_ARR_SZ);
+ if (sdebug_capacity < 0xffffffff) {
+ capac = (unsigned int)sdebug_capacity - 1;
+ arr[0] = (capac >> 24);
+ arr[1] = (capac >> 16) & 0xff;
+ arr[2] = (capac >> 8) & 0xff;
+ arr[3] = capac & 0xff;
+ } else {
+ arr[0] = 0xff;
+ arr[1] = 0xff;
+ arr[2] = 0xff;
+ arr[3] = 0xff;
+ }
+ arr[6] = (SECT_SIZE_PER(target) >> 8) & 0xff;
+ arr[7] = SECT_SIZE_PER(target) & 0xff;
+ return fill_from_dev_buffer(scp, arr, SDEBUG_READCAP_ARR_SZ);
+}
+
+#define SDEBUG_READCAP16_ARR_SZ 32
+static int resp_readcap16(struct scsi_cmnd * scp,
+ struct sdebug_dev_info * devip)
+{
+ unsigned char *cmd = (unsigned char *)scp->cmnd;
+ unsigned char arr[SDEBUG_READCAP16_ARR_SZ];
+ unsigned long long capac;
+ int errsts, k, alloc_len;
+
+ if ((errsts = check_readiness(scp, 1, devip)))
+ return errsts;
+ alloc_len = ((cmd[10] << 24) + (cmd[11] << 16) + (cmd[12] << 8)
+ + cmd[13]);
+ /* following just in case virtual_gb changed */
+ if (scsi_debug_virtual_gb > 0) {
+ sdebug_capacity = 2048 * 1024;
+ sdebug_capacity *= scsi_debug_virtual_gb;
+ } else
+ sdebug_capacity = sdebug_store_sectors;
+ memset(arr, 0, SDEBUG_READCAP16_ARR_SZ);
+ capac = sdebug_capacity - 1;
+ for (k = 0; k < 8; ++k, capac >>= 8)
+ arr[7 - k] = capac & 0xff;
+ arr[8] = (SECT_SIZE_PER(target) >> 24) & 0xff;
+ arr[9] = (SECT_SIZE_PER(target) >> 16) & 0xff;
+ arr[10] = (SECT_SIZE_PER(target) >> 8) & 0xff;
+ arr[11] = SECT_SIZE_PER(target) & 0xff;
+ return fill_from_dev_buffer(scp, arr,
+ min(alloc_len, SDEBUG_READCAP16_ARR_SZ));
+}
+
+/* <<Following mode page info copied from ST318451LW>> */
static int resp_err_recov_pg(unsigned char * p, int pcontrol, int target)
{ /* Read-Write Error Recovery page for mode_sense */
- unsigned char err_recov_pg[] = {0x1, 0xa, 0xc0, 11, 240, 0, 0, 0,
+ unsigned char err_recov_pg[] = {0x1, 0xa, 0xc0, 11, 240, 0, 0, 0,
5, 0, 0xff, 0xff};
memcpy(p, err_recov_pg, sizeof(err_recov_pg));
static int resp_disconnect_pg(unsigned char * p, int pcontrol, int target)
{ /* Disconnect-Reconnect page for mode_sense */
- unsigned char disconnect_pg[] = {0x2, 0xe, 128, 128, 0, 10, 0, 0,
+ unsigned char disconnect_pg[] = {0x2, 0xe, 128, 128, 0, 10, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0};
memcpy(p, disconnect_pg, sizeof(disconnect_pg));
static int resp_caching_pg(unsigned char * p, int pcontrol, int target)
{ /* Caching page for mode_sense */
- unsigned char caching_pg[] = {0x8, 18, 0x14, 0, 0xff, 0xff, 0, 0,
+ unsigned char caching_pg[] = {0x8, 18, 0x14, 0, 0xff, 0xff, 0, 0,
0xff, 0xff, 0xff, 0xff, 0x80, 0x14, 0, 0, 0, 0, 0, 0};
memcpy(p, caching_pg, sizeof(caching_pg));
static int resp_ctrl_m_pg(unsigned char * p, int pcontrol, int target)
{ /* Control mode page for mode_sense */
- unsigned char ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0,
+ unsigned char ch_ctrl_m_pg[] = {/* 0xa, 10, */ 0x6, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0};
+ unsigned char d_ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0,
0, 0, 0x2, 0x4b};
+ if (scsi_debug_dsense)
+ ctrl_m_pg[2] |= 0x4;
+ else
+ ctrl_m_pg[2] &= ~0x4;
memcpy(p, ctrl_m_pg, sizeof(ctrl_m_pg));
if (1 == pcontrol)
- memset(p + 2, 0, sizeof(ctrl_m_pg) - 2);
+ memcpy(p + 2, ch_ctrl_m_pg, sizeof(ch_ctrl_m_pg));
+ else if (2 == pcontrol)
+ memcpy(p, d_ctrl_m_pg, sizeof(d_ctrl_m_pg));
return sizeof(ctrl_m_pg);
}
+
static int resp_iec_m_pg(unsigned char * p, int pcontrol, int target)
{ /* Informational Exceptions control mode page for mode_sense */
- unsigned char iec_m_pg[] = {0x1c, 0xa, 0x08, 0, 0, 0, 0, 0,
- 0, 0, 0x0, 0x0};
+ unsigned char ch_iec_m_pg[] = {/* 0x1c, 0xa, */ 0x4, 0xf, 0, 0, 0, 0,
+ 0, 0, 0x0, 0x0};
+ unsigned char d_iec_m_pg[] = {0x1c, 0xa, 0x08, 0, 0, 0, 0, 0,
+ 0, 0, 0x0, 0x0};
+
memcpy(p, iec_m_pg, sizeof(iec_m_pg));
if (1 == pcontrol)
- memset(p + 2, 0, sizeof(iec_m_pg) - 2);
+ memcpy(p + 2, ch_iec_m_pg, sizeof(ch_iec_m_pg));
+ else if (2 == pcontrol)
+ memcpy(p, d_iec_m_pg, sizeof(d_iec_m_pg));
return sizeof(iec_m_pg);
}
+static int resp_sas_sf_m_pg(unsigned char * p, int pcontrol, int target)
+{ /* SAS SSP mode page - short format for mode_sense */
+ unsigned char sas_sf_m_pg[] = {0x19, 0x6,
+ 0x6, 0x0, 0x7, 0xd0, 0x0, 0x0};
+
+ memcpy(p, sas_sf_m_pg, sizeof(sas_sf_m_pg));
+ if (1 == pcontrol)
+ memset(p + 2, 0, sizeof(sas_sf_m_pg) - 2);
+ return sizeof(sas_sf_m_pg);
+}
+
+
+static int resp_sas_pcd_m_spg(unsigned char * p, int pcontrol, int target,
+ int target_dev_id)
+{ /* SAS phy control and discover mode page for mode_sense */
+ unsigned char sas_pcd_m_pg[] = {0x59, 0x1, 0, 0x64, 0, 0x6, 0, 2,
+ 0, 0, 0, 0, 0x10, 0x9, 0x8, 0x0,
+ 0x52, 0x22, 0x22, 0x20, 0x0, 0x0, 0x0, 0x0,
+ 0x51, 0x11, 0x11, 0x10, 0x0, 0x0, 0x0, 0x1,
+ 0x2, 0, 0, 0, 0, 0, 0, 0,
+ 0x88, 0x99, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 1, 0, 0, 0x10, 0x9, 0x8, 0x0,
+ 0x52, 0x22, 0x22, 0x20, 0x0, 0x0, 0x0, 0x0,
+ 0x51, 0x11, 0x11, 0x10, 0x0, 0x0, 0x0, 0x1,
+ 0x3, 0, 0, 0, 0, 0, 0, 0,
+ 0x88, 0x99, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ };
+ int port_a, port_b;
+
+ port_a = target_dev_id + 1;
+ port_b = port_a + 1;
+ memcpy(p, sas_pcd_m_pg, sizeof(sas_pcd_m_pg));
+ p[20] = (port_a >> 24);
+ p[21] = (port_a >> 16) & 0xff;
+ p[22] = (port_a >> 8) & 0xff;
+ p[23] = port_a & 0xff;
+ p[48 + 20] = (port_b >> 24);
+ p[48 + 21] = (port_b >> 16) & 0xff;
+ p[48 + 22] = (port_b >> 8) & 0xff;
+ p[48 + 23] = port_b & 0xff;
+ if (1 == pcontrol)
+ memset(p + 4, 0, sizeof(sas_pcd_m_pg) - 4);
+ return sizeof(sas_pcd_m_pg);
+}
+
+static int resp_sas_sha_m_spg(unsigned char * p, int pcontrol)
+{ /* SAS SSP shared protocol specific port mode subpage */
+ unsigned char sas_sha_m_pg[] = {0x59, 0x2, 0, 0xc, 0, 0x6, 0x10, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ };
+
+ memcpy(p, sas_sha_m_pg, sizeof(sas_sha_m_pg));
+ if (1 == pcontrol)
+ memset(p + 4, 0, sizeof(sas_sha_m_pg) - 4);
+ return sizeof(sas_sha_m_pg);
+}
+
#define SDEBUG_MAX_MSENSE_SZ 256
-static int resp_mode_sense(unsigned char * cmd, int target,
- unsigned char * buff, int bufflen,
+static int resp_mode_sense(struct scsi_cmnd * scp, int target,
struct sdebug_dev_info * devip)
{
unsigned char dbd;
- int pcontrol, pcode;
+ int pcontrol, pcode, subpcode;
unsigned char dev_spec;
- int alloc_len, msense_6, offset, len;
+ int alloc_len, msense_6, offset, len, errsts, target_dev_id;
unsigned char * ap;
unsigned char arr[SDEBUG_MAX_MSENSE_SZ];
- int min_len = bufflen > SDEBUG_MAX_MSENSE_SZ ?
- SDEBUG_MAX_MSENSE_SZ : bufflen;
+ unsigned char *cmd = (unsigned char *)scp->cmnd;
- SCSI_LOG_LLQUEUE(3, printk("Mode sense ...(%p %d)\n", buff, bufflen));
+ if ((errsts = check_readiness(scp, 1, devip)))
+ return errsts;
dbd = cmd[1] & 0x8;
pcontrol = (cmd[2] & 0xc0) >> 6;
pcode = cmd[2] & 0x3f;
+ subpcode = cmd[3];
msense_6 = (MODE_SENSE == cmd[0]);
alloc_len = msense_6 ? cmd[4] : ((cmd[7] << 8) | cmd[8]);
- /* printk(KERN_INFO "msense: dbd=%d pcontrol=%d pcode=%d "
- "msense_6=%d alloc_len=%d\n", dbd, pcontrol, pcode, "
- "msense_6, alloc_len); */
- if (bufflen < alloc_len)
- printk(KERN_INFO "scsi_debug: mode_sense: bufflen=%d "
- "< alloc_length=%d\n", bufflen, alloc_len);
- memset(buff, 0, bufflen);
memset(arr, 0, SDEBUG_MAX_MSENSE_SZ);
if (0x3 == pcontrol) { /* Saving values not supported */
mk_sense_buffer(devip, ILLEGAL_REQUEST, SAVING_PARAMS_UNSUP,
- 0, 18);
+ 0);
return check_condition_result;
}
+ target_dev_id = ((devip->sdbg_host->shost->host_no + 1) * 2000) +
+ (devip->target * 1000) - 3;
dev_spec = DEV_READONLY(target) ? 0x80 : 0x0;
if (msense_6) {
arr[2] = dev_spec;
}
ap = arr + offset;
+ if ((subpcode > 0x0) && (subpcode < 0xff) && (0x19 != pcode)) {
+ /* TODO: Control Extension page */
+ mk_sense_buffer(devip, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB,
+ 0);
+ return check_condition_result;
+ }
switch (pcode) {
case 0x1: /* Read-Write error recovery page, direct access */
len = resp_err_recov_pg(ap, pcontrol, target);
len = resp_ctrl_m_pg(ap, pcontrol, target);
offset += len;
break;
+ case 0x19: /* if spc==1 then sas phy, control+discover */
+ if ((subpcode > 0x2) && (subpcode < 0xff)) {
+ mk_sense_buffer(devip, ILLEGAL_REQUEST,
+ INVALID_FIELD_IN_CDB, 0);
+ return check_condition_result;
+ }
+ len = 0;
+ if ((0x0 == subpcode) || (0xff == subpcode))
+ len += resp_sas_sf_m_pg(ap + len, pcontrol, target);
+ if ((0x1 == subpcode) || (0xff == subpcode))
+ len += resp_sas_pcd_m_spg(ap + len, pcontrol, target,
+ target_dev_id);
+ if ((0x2 == subpcode) || (0xff == subpcode))
+ len += resp_sas_sha_m_spg(ap + len, pcontrol);
+ offset += len;
+ break;
case 0x1c: /* Informational Exceptions Mode page, all devices */
len = resp_iec_m_pg(ap, pcontrol, target);
offset += len;
break;
case 0x3f: /* Read all Mode pages */
- len = resp_err_recov_pg(ap, pcontrol, target);
- len += resp_disconnect_pg(ap + len, pcontrol, target);
- len += resp_format_pg(ap + len, pcontrol, target);
- len += resp_caching_pg(ap + len, pcontrol, target);
- len += resp_ctrl_m_pg(ap + len, pcontrol, target);
- len += resp_iec_m_pg(ap + len, pcontrol, target);
+ if ((0 == subpcode) || (0xff == subpcode)) {
+ len = resp_err_recov_pg(ap, pcontrol, target);
+ len += resp_disconnect_pg(ap + len, pcontrol, target);
+ len += resp_format_pg(ap + len, pcontrol, target);
+ len += resp_caching_pg(ap + len, pcontrol, target);
+ len += resp_ctrl_m_pg(ap + len, pcontrol, target);
+ len += resp_sas_sf_m_pg(ap + len, pcontrol, target);
+ if (0xff == subpcode) {
+ len += resp_sas_pcd_m_spg(ap + len, pcontrol,
+ target, target_dev_id);
+ len += resp_sas_sha_m_spg(ap + len, pcontrol);
+ }
+ len += resp_iec_m_pg(ap + len, pcontrol, target);
+ } else {
+ mk_sense_buffer(devip, ILLEGAL_REQUEST,
+ INVALID_FIELD_IN_CDB, 0);
+ return check_condition_result;
+ }
offset += len;
break;
default:
mk_sense_buffer(devip, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB,
- 0, 18);
+ 0);
return check_condition_result;
}
if (msense_6)
arr[0] = offset - 1;
else {
- offset -= 2;
- arr[0] = (offset >> 8) & 0xff;
- arr[1] = offset & 0xff;
+ arr[0] = ((offset - 2) >> 8) & 0xff;
+ arr[1] = (offset - 2) & 0xff;
}
- memcpy(buff, arr, min_len);
- return 0;
+ return fill_from_dev_buffer(scp, arr, min(alloc_len, offset));
}
-static int resp_read(struct scsi_cmnd * SCpnt, int upper_blk, int block,
- int num, struct sdebug_dev_info * devip)
+#define SDEBUG_MAX_MSELECT_SZ 512
+
+static int resp_mode_select(struct scsi_cmnd * scp, int mselect6,
+ struct sdebug_dev_info * devip)
+{
+ int pf, sp, ps, md_len, bd_len, off, spf, pg_len;
+ int param_len, res, errsts, mpage;
+ unsigned char arr[SDEBUG_MAX_MSELECT_SZ];
+ unsigned char *cmd = (unsigned char *)scp->cmnd;
+
+ if ((errsts = check_readiness(scp, 1, devip)))
+ return errsts;
+ memset(arr, 0, sizeof(arr));
+ pf = cmd[1] & 0x10;
+ sp = cmd[1] & 0x1;
+ param_len = mselect6 ? cmd[4] : ((cmd[7] << 8) + cmd[8]);
+ if ((0 == pf) || sp || (param_len > SDEBUG_MAX_MSELECT_SZ)) {
+ mk_sense_buffer(devip, ILLEGAL_REQUEST,
+ INVALID_FIELD_IN_CDB, 0);
+ return check_condition_result;
+ }
+ res = fetch_to_dev_buffer(scp, arr, param_len);
+ if (-1 == res)
+ return (DID_ERROR << 16);
+ else if ((res < param_len) &&
+ (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts))
+ printk(KERN_INFO "scsi_debug: mode_select: cdb indicated=%d, "
+ " IO sent=%d bytes\n", param_len, res);
+ md_len = mselect6 ? (arr[0] + 1) : ((arr[0] << 8) + arr[1] + 2);
+ bd_len = mselect6 ? arr[3] : ((arr[6] << 8) + arr[7]);
+ if ((md_len > 2) || (0 != bd_len)) {
+ mk_sense_buffer(devip, ILLEGAL_REQUEST,
+ INVALID_FIELD_IN_PARAM_LIST, 0);
+ return check_condition_result;
+ }
+ off = bd_len + (mselect6 ? 4 : 8);
+ mpage = arr[off] & 0x3f;
+ ps = !!(arr[off] & 0x80);
+ if (ps) {
+ mk_sense_buffer(devip, ILLEGAL_REQUEST,
+ INVALID_FIELD_IN_PARAM_LIST, 0);
+ return check_condition_result;
+ }
+ spf = !!(arr[off] & 0x40);
+ pg_len = spf ? ((arr[off + 2] << 8) + arr[off + 3] + 4) :
+ (arr[off + 1] + 2);
+ if ((pg_len + off) > param_len) {
+ mk_sense_buffer(devip, ILLEGAL_REQUEST,
+ PARAMETER_LIST_LENGTH_ERR, 0);
+ return check_condition_result;
+ }
+ switch (mpage) {
+ case 0xa: /* Control Mode page */
+ if (ctrl_m_pg[1] == arr[off + 1]) {
+ memcpy(ctrl_m_pg + 2, arr + off + 2,
+ sizeof(ctrl_m_pg) - 2);
+ scsi_debug_dsense = !!(ctrl_m_pg[2] & 0x4);
+ return 0;
+ }
+ break;
+ case 0x1c: /* Informational Exceptions Mode page */
+ if (iec_m_pg[1] == arr[off + 1]) {
+ memcpy(iec_m_pg + 2, arr + off + 2,
+ sizeof(iec_m_pg) - 2);
+ return 0;
+ }
+ break;
+ default:
+ break;
+ }
+ mk_sense_buffer(devip, ILLEGAL_REQUEST,
+ INVALID_FIELD_IN_PARAM_LIST, 0);
+ return check_condition_result;
+}
+
+static int resp_temp_l_pg(unsigned char * arr)
+{
+ unsigned char temp_l_pg[] = {0x0, 0x0, 0x3, 0x2, 0x0, 38,
+ 0x0, 0x1, 0x3, 0x2, 0x0, 65,
+ };
+
+ memcpy(arr, temp_l_pg, sizeof(temp_l_pg));
+ return sizeof(temp_l_pg);
+}
+
+static int resp_ie_l_pg(unsigned char * arr)
+{
+ unsigned char ie_l_pg[] = {0x0, 0x0, 0x3, 0x3, 0x0, 0x0, 38,
+ };
+
+ memcpy(arr, ie_l_pg, sizeof(ie_l_pg));
+ if (iec_m_pg[2] & 0x4) { /* TEST bit set */
+ arr[4] = THRESHOLD_EXCEEDED;
+ arr[5] = 0xff;
+ }
+ return sizeof(ie_l_pg);
+}
+
+#define SDEBUG_MAX_LSENSE_SZ 512
+
+static int resp_log_sense(struct scsi_cmnd * scp,
+ struct sdebug_dev_info * devip)
+{
+ int ppc, sp, pcontrol, pcode, alloc_len, errsts, len, n;
+ unsigned char arr[SDEBUG_MAX_LSENSE_SZ];
+ unsigned char *cmd = (unsigned char *)scp->cmnd;
+
+ if ((errsts = check_readiness(scp, 1, devip)))
+ return errsts;
+ memset(arr, 0, sizeof(arr));
+ ppc = cmd[1] & 0x2;
+ sp = cmd[1] & 0x1;
+ if (ppc || sp) {
+ mk_sense_buffer(devip, ILLEGAL_REQUEST,
+ INVALID_FIELD_IN_CDB, 0);
+ return check_condition_result;
+ }
+ pcontrol = (cmd[2] & 0xc0) >> 6;
+ pcode = cmd[2] & 0x3f;
+ alloc_len = (cmd[7] << 8) + cmd[8];
+ arr[0] = pcode;
+ switch (pcode) {
+ case 0x0: /* Supported log pages log page */
+ n = 4;
+ arr[n++] = 0x0; /* this page */
+ arr[n++] = 0xd; /* Temperature */
+ arr[n++] = 0x2f; /* Informational exceptions */
+ arr[3] = n - 4;
+ break;
+ case 0xd: /* Temperature log page */
+ arr[3] = resp_temp_l_pg(arr + 4);
+ break;
+ case 0x2f: /* Informational exceptions log page */
+ arr[3] = resp_ie_l_pg(arr + 4);
+ break;
+ default:
+ mk_sense_buffer(devip, ILLEGAL_REQUEST,
+ INVALID_FIELD_IN_CDB, 0);
+ return check_condition_result;
+ }
+ len = min(((arr[2] << 8) + arr[3]) + 4, alloc_len);
+ return fill_from_dev_buffer(scp, arr,
+ min(len, SDEBUG_MAX_INQ_ARR_SZ));
+}
+
+static int resp_read(struct scsi_cmnd * SCpnt, unsigned long long lba,
+ unsigned int num, struct sdebug_dev_info * devip)
{
- unsigned char *buff = (unsigned char *) SCpnt->request_buffer;
- int nbytes, sgcount;
- struct scatterlist *sgpnt = NULL;
- int bufflen = SCpnt->request_bufflen;
unsigned long iflags;
+ unsigned int block, from_bottom;
+ unsigned long long u;
+ int ret;
- if (upper_blk || (block + num > sdebug_capacity)) {
- mk_sense_buffer(devip, ILLEGAL_REQUEST, ADDR_OUT_OF_RANGE,
- 0, 18);
+ if (lba + num > sdebug_capacity) {
+ mk_sense_buffer(devip, ILLEGAL_REQUEST, ADDR_OUT_OF_RANGE,
+ 0);
+ return check_condition_result;
+ }
+ /* transfer length excessive (tie in to block limits VPD page) */
+ if (num > sdebug_store_sectors) {
+ mk_sense_buffer(devip, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB,
+ 0);
return check_condition_result;
}
if ((SCSI_DEBUG_OPT_MEDIUM_ERR & scsi_debug_opts) &&
- (block <= OPT_MEDIUM_ERR_ADDR) &&
- ((block + num) > OPT_MEDIUM_ERR_ADDR)) {
- mk_sense_buffer(devip, MEDIUM_ERROR, UNRECOVERED_READ_ERR,
- 0, 18);
+ (lba <= OPT_MEDIUM_ERR_ADDR) &&
+ ((lba + num) > OPT_MEDIUM_ERR_ADDR)) {
/* claim unrecoverable read error */
+ mk_sense_buffer(devip, MEDIUM_ERROR, UNRECOVERED_READ_ERR,
+ 0);
+ /* set info field and valid bit for fixed descriptor */
+ if (0x70 == (devip->sense_buff[0] & 0x7f)) {
+ devip->sense_buff[0] |= 0x80; /* Valid bit */
+ ret = OPT_MEDIUM_ERR_ADDR;
+ devip->sense_buff[3] = (ret >> 24) & 0xff;
+ devip->sense_buff[4] = (ret >> 16) & 0xff;
+ devip->sense_buff[5] = (ret >> 8) & 0xff;
+ devip->sense_buff[6] = ret & 0xff;
+ }
return check_condition_result;
}
read_lock_irqsave(&atomic_rw, iflags);
- sgcount = 0;
- nbytes = bufflen;
- /* printk(KERN_INFO "scsi_debug_read: block=%d, tot_bufflen=%d\n",
- block, bufflen); */
- if (SCpnt->use_sg) {
- sgcount = 0;
- sgpnt = (struct scatterlist *) buff;
- buff = scatg2virt(&sgpnt[sgcount]);
- bufflen = sgpnt[sgcount].length;
- }
- do {
- memcpy(buff, fake_storep + (block * SECT_SIZE), bufflen);
- nbytes -= bufflen;
- if (SCpnt->use_sg) {
- block += bufflen >> POW2_SECT_SIZE;
- sgcount++;
- if (nbytes) {
- buff = scatg2virt(&sgpnt[sgcount]);
- bufflen = sgpnt[sgcount].length;
- }
- } else if (nbytes > 0)
- printk(KERN_WARNING "scsi_debug:resp_read: unexpected "
- "nbytes=%d\n", nbytes);
- } while (nbytes);
+ if ((lba + num) <= sdebug_store_sectors)
+ ret = fill_from_dev_buffer(SCpnt,
+ fake_storep + (lba * SECT_SIZE),
+ num * SECT_SIZE);
+ else {
+ /* modulo when one arg is 64 bits needs do_div() */
+ u = lba;
+ block = do_div(u, sdebug_store_sectors);
+ from_bottom = 0;
+ if ((block + num) > sdebug_store_sectors)
+ from_bottom = (block + num) - sdebug_store_sectors;
+ ret = fill_from_dev_buffer(SCpnt,
+ fake_storep + (block * SECT_SIZE),
+ (num - from_bottom) * SECT_SIZE);
+ if ((0 == ret) && (from_bottom > 0))
+ ret = fill_from_dev_buffer(SCpnt, fake_storep,
+ from_bottom * SECT_SIZE);
+ }
read_unlock_irqrestore(&atomic_rw, iflags);
- return 0;
+ return ret;
}
-static int resp_write(struct scsi_cmnd * SCpnt, int upper_blk, int block,
- int num, struct sdebug_dev_info * devip)
+static int resp_write(struct scsi_cmnd * SCpnt, unsigned long long lba,
+ unsigned int num, struct sdebug_dev_info * devip)
{
- unsigned char *buff = (unsigned char *) SCpnt->request_buffer;
- int nbytes, sgcount;
- struct scatterlist *sgpnt = NULL;
- int bufflen = SCpnt->request_bufflen;
unsigned long iflags;
+ unsigned int block, to_bottom;
+ unsigned long long u;
+ int res;
- if (upper_blk || (block + num > sdebug_capacity)) {
+ if (lba + num > sdebug_capacity) {
mk_sense_buffer(devip, ILLEGAL_REQUEST, ADDR_OUT_OF_RANGE,
- 0, 18);
+ 0);
+ return check_condition_result;
+ }
+ /* transfer length excessive (tie in to block limits VPD page) */
+ if (num > sdebug_store_sectors) {
+ mk_sense_buffer(devip, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB,
+ 0);
return check_condition_result;
}
write_lock_irqsave(&atomic_rw, iflags);
- sgcount = 0;
- nbytes = bufflen;
- if (SCpnt->use_sg) {
- sgcount = 0;
- sgpnt = (struct scatterlist *) buff;
- buff = scatg2virt(&sgpnt[sgcount]);
- bufflen = sgpnt[sgcount].length;
- }
- do {
- memcpy(fake_storep + (block * SECT_SIZE), buff, bufflen);
-
- nbytes -= bufflen;
- if (SCpnt->use_sg) {
- block += bufflen >> POW2_SECT_SIZE;
- sgcount++;
- if (nbytes) {
- buff = scatg2virt(&sgpnt[sgcount]);
- bufflen = sgpnt[sgcount].length;
- }
- } else if (nbytes > 0)
- printk(KERN_WARNING "scsi_debug:resp_write: "
- "unexpected nbytes=%d\n", nbytes);
- } while (nbytes);
+ if ((lba + num) <= sdebug_store_sectors)
+ res = fetch_to_dev_buffer(SCpnt,
+ fake_storep + (lba * SECT_SIZE),
+ num * SECT_SIZE);
+ else {
+ /* modulo when one arg is 64 bits needs do_div() */
+ u = lba;
+ block = do_div(u, sdebug_store_sectors);
+ to_bottom = 0;
+ if ((block + num) > sdebug_store_sectors)
+ to_bottom = (block + num) - sdebug_store_sectors;
+ res = fetch_to_dev_buffer(SCpnt,
+ fake_storep + (block * SECT_SIZE),
+ (num - to_bottom) * SECT_SIZE);
+ if ((0 == res) && (to_bottom > 0))
+ res = fetch_to_dev_buffer(SCpnt, fake_storep,
+ to_bottom * SECT_SIZE);
+ }
write_unlock_irqrestore(&atomic_rw, iflags);
+ if (-1 == res)
+ return (DID_ERROR << 16);
+ else if ((res < (num * SECT_SIZE)) &&
+ (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts))
+ printk(KERN_INFO "scsi_debug: write: cdb indicated=%u, "
+ " IO sent=%d bytes\n", num * SECT_SIZE, res);
return 0;
}
-static int resp_report_luns(unsigned char * cmd, unsigned char * buff,
- int bufflen, struct sdebug_dev_info * devip)
+#define SDEBUG_RLUN_ARR_SZ 256
+
+static int resp_report_luns(struct scsi_cmnd * scp,
+ struct sdebug_dev_info * devip)
{
- unsigned int alloc_len;
- int lun_cnt, i, upper;
+ unsigned int alloc_len;
+ int lun_cnt, i, upper, num, n, wlun, lun;
+ unsigned char *cmd = (unsigned char *)scp->cmnd;
int select_report = (int)cmd[2];
struct scsi_lun *one_lun;
+ unsigned char arr[SDEBUG_RLUN_ARR_SZ];
+ unsigned char * max_addr;
alloc_len = cmd[9] + (cmd[8] << 8) + (cmd[7] << 16) + (cmd[6] << 24);
- if ((alloc_len < 16) || (select_report > 2)) {
+ if ((alloc_len < 4) || (select_report > 2)) {
mk_sense_buffer(devip, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB,
- 0, 18);
+ 0);
return check_condition_result;
}
- if (bufflen > 8) { /* can produce response with up to 16k luns
- (lun 0 to lun 16383) */
- memset(buff, 0, bufflen);
- lun_cnt = scsi_debug_max_luns;
- buff[2] = ((sizeof(struct scsi_lun) * lun_cnt) >> 8) & 0xff;
- buff[3] = (sizeof(struct scsi_lun) * lun_cnt) & 0xff;
- lun_cnt = min((int)((bufflen - 8) / sizeof(struct scsi_lun)),
- lun_cnt);
- one_lun = (struct scsi_lun *) &buff[8];
- for (i = 0; i < lun_cnt; i++) {
- upper = (i >> 8) & 0x3f;
- if (upper)
- one_lun[i].scsi_lun[0] =
- (upper | (SAM2_LUN_ADDRESS_METHOD << 6));
- one_lun[i].scsi_lun[1] = i & 0xff;
- }
+ /* can produce response with up to 16k luns (lun 0 to lun 16383) */
+ memset(arr, 0, SDEBUG_RLUN_ARR_SZ);
+ lun_cnt = scsi_debug_max_luns;
+ if (1 == select_report)
+ lun_cnt = 0;
+ else if (scsi_debug_no_lun_0 && (lun_cnt > 0))
+ --lun_cnt;
+ wlun = (select_report > 0) ? 1 : 0;
+ num = lun_cnt + wlun;
+ arr[2] = ((sizeof(struct scsi_lun) * num) >> 8) & 0xff;
+ arr[3] = (sizeof(struct scsi_lun) * num) & 0xff;
+ n = min((int)((SDEBUG_RLUN_ARR_SZ - 8) /
+ sizeof(struct scsi_lun)), num);
+ if (n < num) {
+ wlun = 0;
+ lun_cnt = n;
}
- return 0;
+ one_lun = (struct scsi_lun *) &arr[8];
+ max_addr = arr + SDEBUG_RLUN_ARR_SZ;
+ for (i = 0, lun = (scsi_debug_no_lun_0 ? 1 : 0);
+ ((i < lun_cnt) && ((unsigned char *)(one_lun + i) < max_addr));
+ i++, lun++) {
+ upper = (lun >> 8) & 0x3f;
+ if (upper)
+ one_lun[i].scsi_lun[0] =
+ (upper | (SAM2_LUN_ADDRESS_METHOD << 6));
+ one_lun[i].scsi_lun[1] = lun & 0xff;
+ }
+ if (wlun) {
+ one_lun[i].scsi_lun[0] = (SAM2_WLUN_REPORT_LUNS >> 8) & 0xff;
+ one_lun[i].scsi_lun[1] = SAM2_WLUN_REPORT_LUNS & 0xff;
+ i++;
+ }
+ alloc_len = (unsigned char *)(one_lun + i) - arr;
+ return fill_from_dev_buffer(scp, arr,
+ min((int)alloc_len, SDEBUG_RLUN_ARR_SZ));
}
/* When timer goes off this function is called. */
static int scsi_debug_slave_configure(struct scsi_device * sdp)
{
- struct sdebug_dev_info * devip;
+ struct sdebug_dev_info * devip;
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: slave_configure <%u %u %u %u>\n",
devip = devInfoReg(sdp);
sdp->hostdata = devip;
if (sdp->host->cmd_per_lun)
- scsi_adjust_queue_depth(sdp, SDEBUG_TAGGED_QUEUING,
+ scsi_adjust_queue_depth(sdp, SDEBUG_TAGGED_QUEUING,
sdp->host->cmd_per_lun);
+ blk_queue_max_segment_size(sdp->request_queue, 256 * 1024);
return 0;
}
static void scsi_debug_slave_destroy(struct scsi_device * sdp)
{
- struct sdebug_dev_info * devip =
+ struct sdebug_dev_info * devip =
(struct sdebug_dev_info *)sdp->hostdata;
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
open_devip = devip;
}
}
+ if (NULL == open_devip) { /* try and make a new one */
+ open_devip = kzalloc(sizeof(*open_devip),GFP_KERNEL);
+ if (NULL == open_devip) {
+ printk(KERN_ERR "%s: out of memory at line %d\n",
+ __FUNCTION__, __LINE__);
+ return NULL;
+ }
+ open_devip->sdbg_host = sdbg_host;
+ list_add_tail(&open_devip->dev_list,
+ &sdbg_host->dev_info_list);
+ }
if (open_devip) {
open_devip->channel = sdev->channel;
open_devip->target = sdev->id;
open_devip->reset = 1;
open_devip->used = 1;
memset(open_devip->sense_buff, 0, SDEBUG_SENSE_LEN);
- open_devip->sense_buff[0] = 0x70;
+ if (scsi_debug_dsense)
+ open_devip->sense_buff[0] = 0x72;
+ else {
+ open_devip->sense_buff[0] = 0x70;
+ open_devip->sense_buff[7] = 0xa;
+ }
+ if (sdev->lun == SAM2_WLUN_REPORT_LUNS)
+ open_devip->wlun = SAM2_WLUN_REPORT_LUNS & 0xff;
return open_devip;
}
return NULL;
}
-static void mk_sense_buffer(struct sdebug_dev_info * devip, int key,
- int asc, int asq, int inbandLen)
+static void mk_sense_buffer(struct sdebug_dev_info * devip, int key,
+ int asc, int asq)
{
unsigned char * sbuff;
sbuff = devip->sense_buff;
memset(sbuff, 0, SDEBUG_SENSE_LEN);
- if (inbandLen > SDEBUG_SENSE_LEN)
- inbandLen = SDEBUG_SENSE_LEN;
- sbuff[0] = 0x70;
- sbuff[2] = key;
- sbuff[7] = (inbandLen > 7) ? (inbandLen - 8) : 0;
- sbuff[12] = asc;
- sbuff[13] = asq;
+ if (scsi_debug_dsense) {
+ sbuff[0] = 0x72; /* descriptor, current */
+ sbuff[1] = key;
+ sbuff[2] = asc;
+ sbuff[3] = asq;
+ } else {
+ sbuff[0] = 0x70; /* fixed, current */
+ sbuff[2] = key;
+ sbuff[7] = 0xa; /* implies 18 byte sense buffer */
+ sbuff[12] = asc;
+ sbuff[13] = asq;
+ }
+ if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
+ printk(KERN_INFO "scsi_debug: [sense_key,asc,ascq]: "
+ "[0x%x,0x%x,0x%x]\n", key, asc, asq);
}
static int scsi_debug_abort(struct scsi_cmnd * SCpnt)
printk(KERN_INFO "scsi_debug: biosparam\n");
buf = scsi_bios_ptable(bdev);
if (buf) {
- res = scsi_partsize(buf, capacity,
+ res = scsi_partsize(buf, capacity,
&info[2], &info[0], &info[1]);
kfree(buf);
if (! res)
}
/* Initializes timers in queued array */
-static void init_all_queued(void)
+static void __init init_all_queued(void)
{
unsigned long iflags;
int k;
spin_unlock_irqrestore(&queued_arr_lock, iflags);
}
-static int schedule_resp(struct scsi_cmnd * cmnd,
+static void __init sdebug_build_parts(unsigned char * ramp)
+{
+ struct partition * pp;
+ int starts[SDEBUG_MAX_PARTS + 2];
+ int sectors_per_part, num_sectors, k;
+ int heads_by_sects, start_sec, end_sec;
+
+ /* assume partition table already zeroed */
+ if ((scsi_debug_num_parts < 1) || (sdebug_store_size < 1048576))
+ return;
+ if (scsi_debug_num_parts > SDEBUG_MAX_PARTS) {
+ scsi_debug_num_parts = SDEBUG_MAX_PARTS;
+ printk(KERN_WARNING "scsi_debug:build_parts: reducing "
+ "partitions to %d\n", SDEBUG_MAX_PARTS);
+ }
+ num_sectors = (int)sdebug_store_sectors;
+ sectors_per_part = (num_sectors - sdebug_sectors_per)
+ / scsi_debug_num_parts;
+ heads_by_sects = sdebug_heads * sdebug_sectors_per;
+ starts[0] = sdebug_sectors_per;
+ for (k = 1; k < scsi_debug_num_parts; ++k)
+ starts[k] = ((k * sectors_per_part) / heads_by_sects)
+ * heads_by_sects;
+ starts[scsi_debug_num_parts] = num_sectors;
+ starts[scsi_debug_num_parts + 1] = 0;
+
+ ramp[510] = 0x55; /* magic partition markings */
+ ramp[511] = 0xAA;
+ pp = (struct partition *)(ramp + 0x1be);
+ for (k = 0; starts[k + 1]; ++k, ++pp) {
+ start_sec = starts[k];
+ end_sec = starts[k + 1] - 1;
+ pp->boot_ind = 0;
+
+ pp->cyl = start_sec / heads_by_sects;
+ pp->head = (start_sec - (pp->cyl * heads_by_sects))
+ / sdebug_sectors_per;
+ pp->sector = (start_sec % sdebug_sectors_per) + 1;
+
+ pp->end_cyl = end_sec / heads_by_sects;
+ pp->end_head = (end_sec - (pp->end_cyl * heads_by_sects))
+ / sdebug_sectors_per;
+ pp->end_sector = (end_sec % sdebug_sectors_per) + 1;
+
+ pp->start_sect = start_sec;
+ pp->nr_sects = end_sec - start_sec + 1;
+ pp->sys_ind = 0x83; /* plain Linux partition */
+ }
+}
+
+static int schedule_resp(struct scsi_cmnd * cmnd,
struct sdebug_dev_info * devip,
done_funct_t done, int scsi_result, int delta_jiff)
{
- int k, num;
-
if ((SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) && cmnd) {
- printk(KERN_INFO "scsi_debug: cmd ");
- for (k = 0, num = cmnd->cmd_len; k < num; ++k)
- printk("%02x ", (int)cmnd->cmnd[k]);
- printk("\n");
if (scsi_result) {
struct scsi_device * sdp = cmnd->device;
- printk(KERN_INFO "scsi_debug: ... <%u %u %u %u> "
+ printk(KERN_INFO "scsi_debug: <%u %u %u %u> "
"non-zero result=0x%x\n", sdp->host->host_no,
sdp->channel, sdp->id, sdp->lun, scsi_result);
}
if (cmnd && devip) {
/* simulate autosense by this driver */
if (SAM_STAT_CHECK_CONDITION == (scsi_result & 0xff))
- memcpy(cmnd->sense_buffer, devip->sense_buff,
+ memcpy(cmnd->sense_buffer, devip->sense_buff,
(SCSI_SENSE_BUFFERSIZE > SDEBUG_SENSE_LEN) ?
SDEBUG_SENSE_LEN : SCSI_SENSE_BUFFERSIZE);
}
}
}
-/* Set 'perm' (4th argument) to 0 to disable module_param's definition
- * of sysfs parameters (which module_param doesn't yet support).
- * Sysfs parameters defined explicitly below.
- */
-module_param_named(num_tgts, scsi_debug_num_tgts, int, 0);
-module_param_named(max_luns, scsi_debug_max_luns, int, 0);
-module_param_named(scsi_level, scsi_debug_scsi_level, int, 0);
-module_param_named(dev_size_mb, scsi_debug_dev_size_mb, int, 0);
-module_param_named(opts, scsi_debug_opts, int, 0); /* perm=0644 */
-module_param_named(every_nth, scsi_debug_every_nth, int, 0);
-module_param_named(delay, scsi_debug_delay, int, 0); /* perm=0644 */
-module_param_named(add_host, scsi_debug_add_host, int, 0); /* perm=0644 */
+module_param_named(add_host, scsi_debug_add_host, int, S_IRUGO | S_IWUSR);
+module_param_named(delay, scsi_debug_delay, int, S_IRUGO | S_IWUSR);
+module_param_named(dev_size_mb, scsi_debug_dev_size_mb, int, S_IRUGO);
+module_param_named(dsense, scsi_debug_dsense, int, S_IRUGO | S_IWUSR);
+module_param_named(every_nth, scsi_debug_every_nth, int, S_IRUGO | S_IWUSR);
+module_param_named(max_luns, scsi_debug_max_luns, int, S_IRUGO | S_IWUSR);
+module_param_named(no_lun_0, scsi_debug_no_lun_0, int, S_IRUGO | S_IWUSR);
+module_param_named(num_parts, scsi_debug_num_parts, int, S_IRUGO);
+module_param_named(num_tgts, scsi_debug_num_tgts, int, S_IRUGO | S_IWUSR);
+module_param_named(opts, scsi_debug_opts, int, S_IRUGO | S_IWUSR);
+module_param_named(ptype, scsi_debug_ptype, int, S_IRUGO | S_IWUSR);
+module_param_named(scsi_level, scsi_debug_scsi_level, int, S_IRUGO);
+module_param_named(virtual_gb, scsi_debug_virtual_gb, int, S_IRUGO | S_IWUSR);
MODULE_AUTHOR("Eric Youngdale + Douglas Gilbert");
MODULE_DESCRIPTION("SCSI debug adapter driver");
MODULE_LICENSE("GPL");
+MODULE_VERSION(SCSI_DEBUG_VERSION);
-MODULE_PARM_DESC(num_tgts, "number of SCSI targets per host to simulate");
-MODULE_PARM_DESC(max_luns, "number of SCSI LUNs per target to simulate");
-MODULE_PARM_DESC(scsi_level, "SCSI level to simulate");
-MODULE_PARM_DESC(dev_size_mb, "size in MB of ram shared by devs");
-MODULE_PARM_DESC(opts, "1->noise, 2->medium_error, 4->...");
-MODULE_PARM_DESC(every_nth, "timeout every nth command(def=100)");
-MODULE_PARM_DESC(delay, "# of jiffies to delay response(def=1)");
MODULE_PARM_DESC(add_host, "0..127 hosts allowed(def=1)");
+MODULE_PARM_DESC(delay, "# of jiffies to delay response(def=1)");
+MODULE_PARM_DESC(dev_size_mb, "size in MB of ram shared by devs(def=8)");
+MODULE_PARM_DESC(dsense, "use descriptor sense format(def=0 -> fixed)");
+MODULE_PARM_DESC(every_nth, "timeout every nth command(def=100)");
+MODULE_PARM_DESC(max_luns, "number of LUNs per target to simulate(def=1)");
+MODULE_PARM_DESC(no_lun_0, "no LU number 0 (def=0 -> have lun 0)");
+MODULE_PARM_DESC(num_parts, "number of partitions(def=0)");
+MODULE_PARM_DESC(num_tgts, "number of targets per host to simulate(def=1)");
+MODULE_PARM_DESC(opts, "1->noise, 2->medium_error, 4->... (def=0)");
+MODULE_PARM_DESC(ptype, "SCSI peripheral type(def=0[disk])");
+MODULE_PARM_DESC(scsi_level, "SCSI level to simulate(def=5[SPC-3])");
+MODULE_PARM_DESC(virtual_gb, "virtual gigabyte size (def=0 -> use dev_size_mb)");
static char sdebug_info[256];
static const char * scsi_debug_info(struct Scsi_Host * shp)
{
- sprintf(sdebug_info, "scsi_debug, %s, num_tgts=%d, "
- "dev_size_mb=%d, opts=0x%x", scsi_debug_version_str,
- scsi_debug_num_tgts, scsi_debug_dev_size_mb,
+ sprintf(sdebug_info, "scsi_debug, version %s [%s], "
+ "dev_size_mb=%d, opts=0x%x", SCSI_DEBUG_VERSION,
+ scsi_debug_version_date, scsi_debug_dev_size_mb,
scsi_debug_opts);
return sdebug_info;
}
if (1 != sscanf(arr, "%d", &pos))
return -EINVAL;
scsi_debug_opts = pos;
- if (scsi_debug_every_nth > 0)
+ if (scsi_debug_every_nth != 0)
scsi_debug_cmnd_count = 0;
return length;
}
begin = 0;
- pos = len = sprintf(buffer, "scsi_debug adapter driver, %s\n"
+ pos = len = sprintf(buffer, "scsi_debug adapter driver, version "
+ "%s [%s]\n"
"num_tgts=%d, shared (ram) size=%d MB, opts=0x%x, "
"every_nth=%d(curr:%d)\n"
"delay=%d, max_luns=%d, scsi_level=%d\n"
"sector_size=%d bytes, cylinders=%d, heads=%d, sectors=%d\n"
- "number of aborts=%d, device_reset=%d, bus_resets=%d, "
+ "number of aborts=%d, device_reset=%d, bus_resets=%d, "
"host_resets=%d\n",
- scsi_debug_version_str, scsi_debug_num_tgts,
+ SCSI_DEBUG_VERSION, scsi_debug_version_date, scsi_debug_num_tgts,
scsi_debug_dev_size_mb, scsi_debug_opts, scsi_debug_every_nth,
scsi_debug_cmnd_count, scsi_debug_delay,
scsi_debug_max_luns, scsi_debug_scsi_level,
return len;
}
-static ssize_t sdebug_delay_show(struct device_driver * ddp, char * buf)
+static ssize_t sdebug_delay_show(struct device_driver * ddp, char * buf)
{
return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_delay);
}
-static ssize_t sdebug_delay_store(struct device_driver * ddp,
+static ssize_t sdebug_delay_store(struct device_driver * ddp,
const char * buf, size_t count)
{
int delay;
}
return -EINVAL;
}
-DRIVER_ATTR(delay, S_IRUGO | S_IWUSR, sdebug_delay_show,
- sdebug_delay_store)
+DRIVER_ATTR(delay, S_IRUGO | S_IWUSR, sdebug_delay_show,
+ sdebug_delay_store);
-static ssize_t sdebug_opts_show(struct device_driver * ddp, char * buf)
+static ssize_t sdebug_opts_show(struct device_driver * ddp, char * buf)
{
return scnprintf(buf, PAGE_SIZE, "0x%x\n", scsi_debug_opts);
}
-static ssize_t sdebug_opts_store(struct device_driver * ddp,
+static ssize_t sdebug_opts_store(struct device_driver * ddp,
const char * buf, size_t count)
{
int opts;
scsi_debug_cmnd_count = 0;
return count;
}
-DRIVER_ATTR(opts, S_IRUGO | S_IWUSR, sdebug_opts_show,
- sdebug_opts_store)
+DRIVER_ATTR(opts, S_IRUGO | S_IWUSR, sdebug_opts_show,
+ sdebug_opts_store);
+
+static ssize_t sdebug_ptype_show(struct device_driver * ddp, char * buf)
+{
+ return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_ptype);
+}
+static ssize_t sdebug_ptype_store(struct device_driver * ddp,
+ const char * buf, size_t count)
+{
+ int n;
+
+ if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
+ scsi_debug_ptype = n;
+ return count;
+ }
+ return -EINVAL;
+}
+DRIVER_ATTR(ptype, S_IRUGO | S_IWUSR, sdebug_ptype_show, sdebug_ptype_store);
+
+static ssize_t sdebug_dsense_show(struct device_driver * ddp, char * buf)
+{
+ return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_dsense);
+}
+static ssize_t sdebug_dsense_store(struct device_driver * ddp,
+ const char * buf, size_t count)
+{
+ int n;
+
+ if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
+ scsi_debug_dsense = n;
+ return count;
+ }
+ return -EINVAL;
+}
+DRIVER_ATTR(dsense, S_IRUGO | S_IWUSR, sdebug_dsense_show,
+ sdebug_dsense_store);
+
+static ssize_t sdebug_no_lun_0_show(struct device_driver * ddp, char * buf)
+{
+ return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_no_lun_0);
+}
+static ssize_t sdebug_no_lun_0_store(struct device_driver * ddp,
+ const char * buf, size_t count)
+{
+ int n;
+
+ if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
+ scsi_debug_no_lun_0 = n;
+ return count;
+ }
+ return -EINVAL;
+}
+DRIVER_ATTR(no_lun_0, S_IRUGO | S_IWUSR, sdebug_no_lun_0_show,
+ sdebug_no_lun_0_store);
-static ssize_t sdebug_num_tgts_show(struct device_driver * ddp, char * buf)
+static ssize_t sdebug_num_tgts_show(struct device_driver * ddp, char * buf)
{
return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_num_tgts);
}
-static ssize_t sdebug_num_tgts_store(struct device_driver * ddp,
+static ssize_t sdebug_num_tgts_store(struct device_driver * ddp,
const char * buf, size_t count)
{
int n;
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
scsi_debug_num_tgts = n;
+ sdebug_max_tgts_luns();
return count;
}
return -EINVAL;
}
-DRIVER_ATTR(num_tgts, S_IRUGO | S_IWUSR, sdebug_num_tgts_show,
- sdebug_num_tgts_store)
+DRIVER_ATTR(num_tgts, S_IRUGO | S_IWUSR, sdebug_num_tgts_show,
+ sdebug_num_tgts_store);
-static ssize_t sdebug_dev_size_mb_show(struct device_driver * ddp, char * buf)
+static ssize_t sdebug_dev_size_mb_show(struct device_driver * ddp, char * buf)
{
return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_dev_size_mb);
}
-DRIVER_ATTR(dev_size_mb, S_IRUGO, sdebug_dev_size_mb_show, NULL)
+DRIVER_ATTR(dev_size_mb, S_IRUGO, sdebug_dev_size_mb_show, NULL);
-static ssize_t sdebug_every_nth_show(struct device_driver * ddp, char * buf)
+static ssize_t sdebug_num_parts_show(struct device_driver * ddp, char * buf)
+{
+ return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_num_parts);
+}
+DRIVER_ATTR(num_parts, S_IRUGO, sdebug_num_parts_show, NULL);
+
+static ssize_t sdebug_every_nth_show(struct device_driver * ddp, char * buf)
{
return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_every_nth);
}
-static ssize_t sdebug_every_nth_store(struct device_driver * ddp,
+static ssize_t sdebug_every_nth_store(struct device_driver * ddp,
const char * buf, size_t count)
{
int nth;
- if ((count > 0) && (1 == sscanf(buf, "%d", &nth)) && (nth >= 0)) {
+ if ((count > 0) && (1 == sscanf(buf, "%d", &nth))) {
scsi_debug_every_nth = nth;
scsi_debug_cmnd_count = 0;
return count;
return -EINVAL;
}
DRIVER_ATTR(every_nth, S_IRUGO | S_IWUSR, sdebug_every_nth_show,
- sdebug_every_nth_store)
+ sdebug_every_nth_store);
-static ssize_t sdebug_max_luns_show(struct device_driver * ddp, char * buf)
+static ssize_t sdebug_max_luns_show(struct device_driver * ddp, char * buf)
{
return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_max_luns);
}
-static ssize_t sdebug_max_luns_store(struct device_driver * ddp,
+static ssize_t sdebug_max_luns_store(struct device_driver * ddp,
const char * buf, size_t count)
{
int n;
if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
scsi_debug_max_luns = n;
+ sdebug_max_tgts_luns();
return count;
}
return -EINVAL;
}
-DRIVER_ATTR(max_luns, S_IRUGO | S_IWUSR, sdebug_max_luns_show,
- sdebug_max_luns_store)
+DRIVER_ATTR(max_luns, S_IRUGO | S_IWUSR, sdebug_max_luns_show,
+ sdebug_max_luns_store);
-static ssize_t sdebug_scsi_level_show(struct device_driver * ddp, char * buf)
+static ssize_t sdebug_scsi_level_show(struct device_driver * ddp, char * buf)
{
return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_scsi_level);
}
-DRIVER_ATTR(scsi_level, S_IRUGO, sdebug_scsi_level_show, NULL)
+DRIVER_ATTR(scsi_level, S_IRUGO, sdebug_scsi_level_show, NULL);
-static ssize_t sdebug_add_host_show(struct device_driver * ddp, char * buf)
+static ssize_t sdebug_virtual_gb_show(struct device_driver * ddp, char * buf)
+{
+ return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_virtual_gb);
+}
+static ssize_t sdebug_virtual_gb_store(struct device_driver * ddp,
+ const char * buf, size_t count)
+{
+ int n;
+
+ if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
+ scsi_debug_virtual_gb = n;
+ if (scsi_debug_virtual_gb > 0) {
+ sdebug_capacity = 2048 * 1024;
+ sdebug_capacity *= scsi_debug_virtual_gb;
+ } else
+ sdebug_capacity = sdebug_store_sectors;
+ return count;
+ }
+ return -EINVAL;
+}
+DRIVER_ATTR(virtual_gb, S_IRUGO | S_IWUSR, sdebug_virtual_gb_show,
+ sdebug_virtual_gb_store);
+
+static ssize_t sdebug_add_host_show(struct device_driver * ddp, char * buf)
{
return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_add_host);
}
-static ssize_t sdebug_add_host_store(struct device_driver * ddp,
+static ssize_t sdebug_add_host_store(struct device_driver * ddp,
const char * buf, size_t count)
{
int delta_hosts;
return count;
}
DRIVER_ATTR(add_host, S_IRUGO | S_IWUSR, sdebug_add_host_show,
- sdebug_add_host_store)
+ sdebug_add_host_store);
-static void do_create_driverfs_files(void)
+static int do_create_driverfs_files(void)
{
- driver_create_file(&sdebug_driverfs_driver, &driver_attr_delay);
- driver_create_file(&sdebug_driverfs_driver, &driver_attr_opts);
- driver_create_file(&sdebug_driverfs_driver, &driver_attr_num_tgts);
- driver_create_file(&sdebug_driverfs_driver, &driver_attr_dev_size_mb);
- driver_create_file(&sdebug_driverfs_driver, &driver_attr_every_nth);
- driver_create_file(&sdebug_driverfs_driver, &driver_attr_max_luns);
- driver_create_file(&sdebug_driverfs_driver, &driver_attr_scsi_level);
- driver_create_file(&sdebug_driverfs_driver, &driver_attr_add_host);
+ int ret;
+
+ ret = driver_create_file(&sdebug_driverfs_driver, &driver_attr_add_host);
+ ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_delay);
+ ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_dev_size_mb);
+ ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_dsense);
+ ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_every_nth);
+ ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_max_luns);
+ ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_num_tgts);
+ ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_num_parts);
+ ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_ptype);
+ ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_opts);
+ ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_scsi_level);
+ return ret;
}
static void do_remove_driverfs_files(void)
{
- driver_remove_file(&sdebug_driverfs_driver, &driver_attr_add_host);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_scsi_level);
+ driver_remove_file(&sdebug_driverfs_driver, &driver_attr_opts);
+ driver_remove_file(&sdebug_driverfs_driver, &driver_attr_ptype);
+ driver_remove_file(&sdebug_driverfs_driver, &driver_attr_num_parts);
+ driver_remove_file(&sdebug_driverfs_driver, &driver_attr_num_tgts);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_max_luns);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_every_nth);
+ driver_remove_file(&sdebug_driverfs_driver, &driver_attr_dsense);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_dev_size_mb);
- driver_remove_file(&sdebug_driverfs_driver, &driver_attr_num_tgts);
- driver_remove_file(&sdebug_driverfs_driver, &driver_attr_opts);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_delay);
+ driver_remove_file(&sdebug_driverfs_driver, &driver_attr_add_host);
}
static int __init scsi_debug_init(void)
{
- unsigned long sz;
+ unsigned int sz;
int host_to_add;
int k;
-
- sdebug_store_size = (unsigned long)scsi_debug_dev_size_mb * 1048576;
- sdebug_capacity = sdebug_store_size / SECT_SIZE;
+ int ret;
+
+ if (scsi_debug_dev_size_mb < 1)
+ scsi_debug_dev_size_mb = 1; /* force minimum 1 MB ramdisk */
+ sdebug_store_size = (unsigned int)scsi_debug_dev_size_mb * 1048576;
+ sdebug_store_sectors = sdebug_store_size / SECT_SIZE;
+ if (scsi_debug_virtual_gb > 0) {
+ sdebug_capacity = 2048 * 1024;
+ sdebug_capacity *= scsi_debug_virtual_gb;
+ } else
+ sdebug_capacity = sdebug_store_sectors;
/* play around with geometry, don't waste too much on track 0 */
sdebug_heads = 8;
sdebug_sectors_per = 32;
- if (scsi_debug_dev_size_mb >= 16)
+ if (scsi_debug_dev_size_mb >= 16)
sdebug_heads = 32;
else if (scsi_debug_dev_size_mb >= 256)
sdebug_heads = 64;
- sdebug_cylinders_per = (unsigned long)sdebug_capacity /
+ sdebug_cylinders_per = (unsigned long)sdebug_capacity /
(sdebug_sectors_per * sdebug_heads);
- if (sdebug_cylinders_per >= 1024) {
+ if (sdebug_cylinders_per >= 1024) {
/* other LLDs do this; implies >= 1GB ram disk ... */
sdebug_heads = 255;
sdebug_sectors_per = 63;
- sdebug_cylinders_per = (unsigned long)sdebug_capacity /
+ sdebug_cylinders_per = (unsigned long)sdebug_capacity /
(sdebug_sectors_per * sdebug_heads);
}
return -ENOMEM;
}
memset(fake_storep, 0, sz);
+ if (scsi_debug_num_parts > 0)
+ sdebug_build_parts(fake_storep);
+
+ ret = device_register(&pseudo_primary);
+ if (ret < 0) {
+ printk(KERN_WARNING "scsi_debug: device_register error: %d\n",
+ ret);
+ goto free_vm;
+ }
+ ret = bus_register(&pseudo_lld_bus);
+ if (ret < 0) {
+ printk(KERN_WARNING "scsi_debug: bus_register error: %d\n",
+ ret);
+ goto dev_unreg;
+ }
+ ret = driver_register(&sdebug_driverfs_driver);
+ if (ret < 0) {
+ printk(KERN_WARNING "scsi_debug: driver_register error: %d\n",
+ ret);
+ goto bus_unreg;
+ }
+ ret = do_create_driverfs_files();
+ if (ret < 0) {
+ printk(KERN_WARNING "scsi_debug: driver_create_file error: %d\n",
+ ret);
+ goto del_files;
+ }
init_all_queued();
- device_register(&pseudo_primary);
- bus_register(&pseudo_lld_bus);
- driver_register(&sdebug_driverfs_driver);
- do_create_driverfs_files();
-
sdebug_driver_template.proc_name = (char *)sdebug_proc_name;
host_to_add = scsi_debug_add_host;
scsi_debug_add_host);
}
return 0;
+
+del_files:
+ do_remove_driverfs_files();
+ driver_unregister(&sdebug_driverfs_driver);
+bus_unreg:
+ bus_unregister(&pseudo_lld_bus);
+dev_unreg:
+ device_unregister(&pseudo_primary);
+free_vm:
+ vfree(fake_storep);
+
+ return ret;
}
static void __exit scsi_debug_exit(void)
device_initcall(scsi_debug_init);
module_exit(scsi_debug_exit);
-void pseudo_0_release(struct device * dev)
+static void pseudo_0_release(struct device * dev)
{
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: pseudo_0_release() called\n");
.release = pseudo_0_release,
};
-static int pseudo_lld_bus_match(struct device *dev,
+static int pseudo_lld_bus_match(struct device *dev,
struct device_driver *dev_driver)
{
return 1;
static struct bus_type pseudo_lld_bus = {
.name = "pseudo",
.match = pseudo_lld_bus_match,
+ .probe = sdebug_driver_probe,
+ .remove = sdebug_driver_remove,
};
static void sdebug_release_adapter(struct device * dev)
struct sdebug_dev_info *sdbg_devinfo;
struct list_head *lh, *lh_sf;
- sdbg_host = kmalloc(sizeof(*sdbg_host),GFP_KERNEL);
+ sdbg_host = kzalloc(sizeof(*sdbg_host),GFP_KERNEL);
if (NULL == sdbg_host) {
printk(KERN_ERR "%s: out of memory at line %d\n",
return -ENOMEM;
}
- memset(sdbg_host, 0, sizeof(*sdbg_host));
INIT_LIST_HEAD(&sdbg_host->dev_info_list);
devs_per_host = scsi_debug_num_tgts * scsi_debug_max_luns;
for (k = 0; k < devs_per_host; k++) {
- sdbg_devinfo = kmalloc(sizeof(*sdbg_devinfo),GFP_KERNEL);
+ sdbg_devinfo = kzalloc(sizeof(*sdbg_devinfo),GFP_KERNEL);
if (NULL == sdbg_devinfo) {
printk(KERN_ERR "%s: out of memory at line %d\n",
__FUNCTION__, __LINE__);
error = -ENOMEM;
goto clean;
}
- memset(sdbg_devinfo, 0, sizeof(*sdbg_devinfo));
sdbg_devinfo->sdbg_host = sdbg_host;
list_add_tail(&sdbg_devinfo->dev_list,
&sdbg_host->dev_info_list);
hpnt->max_id = scsi_debug_num_tgts + 1;
else
hpnt->max_id = scsi_debug_num_tgts;
- hpnt->max_lun = scsi_debug_max_luns;
+ hpnt->max_lun = SAM2_WLUN_REPORT_LUNS; /* = scsi_debug_max_luns; */
error = scsi_add_host(hpnt, &sdbg_host->dev);
if (error) {
scsi_host_put(sdbg_host->shost);
return 0;
}
+
+static void sdebug_max_tgts_luns(void)
+{
+ struct sdebug_host_info * sdbg_host;
+ struct Scsi_Host *hpnt;
+
+ spin_lock(&sdebug_host_list_lock);
+ list_for_each_entry(sdbg_host, &sdebug_host_list, host_list) {
+ hpnt = sdbg_host->shost;
+ if ((hpnt->this_id >= 0) &&
+ (scsi_debug_num_tgts > hpnt->this_id))
+ hpnt->max_id = scsi_debug_num_tgts + 1;
+ else
+ hpnt->max_id = scsi_debug_num_tgts;
+ hpnt->max_lun = SAM2_WLUN_REPORT_LUNS; /* scsi_debug_max_luns; */
+ }
+ spin_unlock(&sdebug_host_list_lock);
+}
git://git.onelab.eu / linux-2.6.git / blobdiff