diff options
| author | Douglas Gilbert <dgilbert@interlog.com> | 2016-04-25 12:16:28 -0400 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-04-29 19:22:39 -0400 |
| commit | 773642d95b8220502555122578694deeee8af4af (patch) | |
| tree | 7f4096ae71f0a2db9434df4ca5d15eb56c561f03 /drivers/scsi/scsi_debug.c | |
| parent | ff54aee466e3ad3f5aad76c629a8bcb88fc9b348 (diff) | |
| download | op-kernel-dev-773642d95b8220502555122578694deeee8af4af.zip op-kernel-dev-773642d95b8220502555122578694deeee8af4af.tar.gz | |
scsi_debug: cleanup naming and bit crunching
Shorten file scope static and constant names. Use more
get/put_unaligned calls to hide bit banging. Introduce
sdebug_verbose boolean to replace frequent masking of
option bit flags. Add GPL and bump version.
[mkp: Use logical instead of bitwise OR for LBP VPD flags]
Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/scsi_debug.c')
| -rw-r--r-- | drivers/scsi/scsi_debug.c | 1162 |
1 files changed, 525 insertions, 637 deletions
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 06b1517..ac74cbd 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -6,23 +6,15 @@ * 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. To be more - * realistic, the simulated devices have the transport attributes of - * SAS disks. + * Copyright (C) 2001 - 2016 Douglas Gilbert * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. * * For documentation see http://sg.danny.cz/sg/sdebug26.html * - * D. Gilbert (dpg) work for Magneto-Optical device test [20010421] - * dpg: work for devfs large number of disks [20010809] - * forked for lk 2.5 series [20011216, 20020101] - * use vmalloc() more inquiry+mode_sense [20020302] - * add timers for delayed responses [20020721] - * Patrick Mansfield <patmans@us.ibm.com> max_luns+scsi_level [20021031] - * Mike Anderson <andmike@us.ibm.com> sysfs work [20021118] - * dpg: change style of boot options to "scsi_debug.num_tgts=2" and - * module options to "modprobe scsi_debug num_tgts=2" [20021221] */ @@ -66,8 +58,9 @@ #include "sd.h" #include "scsi_logging.h" -#define SCSI_DEBUG_VERSION "1.85" -static const char *scsi_debug_version_date = "20141022"; +/* make sure inq_product_rev string corresponds to this version */ +#define SCSI_DEBUG_VERSION "1.86" +static const char *sdebug_version_date = "20160422"; #define MY_NAME "scsi_debug" @@ -145,38 +138,44 @@ static const char *scsi_debug_version_date = "20141022"; #define DEF_STRICT 0 #define DELAY_OVERRIDDEN -9999 -/* bit mask values for scsi_debug_opts */ -#define SCSI_DEBUG_OPT_NOISE 1 -#define SCSI_DEBUG_OPT_MEDIUM_ERR 2 -#define SCSI_DEBUG_OPT_TIMEOUT 4 -#define SCSI_DEBUG_OPT_RECOVERED_ERR 8 -#define SCSI_DEBUG_OPT_TRANSPORT_ERR 16 -#define SCSI_DEBUG_OPT_DIF_ERR 32 -#define SCSI_DEBUG_OPT_DIX_ERR 64 -#define SCSI_DEBUG_OPT_MAC_TIMEOUT 128 -#define SCSI_DEBUG_OPT_SHORT_TRANSFER 0x100 -#define SCSI_DEBUG_OPT_Q_NOISE 0x200 -#define SCSI_DEBUG_OPT_ALL_TSF 0x400 -#define SCSI_DEBUG_OPT_RARE_TSF 0x800 -#define SCSI_DEBUG_OPT_N_WCE 0x1000 -#define SCSI_DEBUG_OPT_RESET_NOISE 0x2000 -#define SCSI_DEBUG_OPT_NO_CDB_NOISE 0x4000 -#define SCSI_DEBUG_OPT_ALL_NOISE (0x1 | 0x200 | 0x2000) +/* bit mask values for sdebug_opts */ +#define SDEBUG_OPT_NOISE 1 +#define SDEBUG_OPT_MEDIUM_ERR 2 +#define SDEBUG_OPT_TIMEOUT 4 +#define SDEBUG_OPT_RECOVERED_ERR 8 +#define SDEBUG_OPT_TRANSPORT_ERR 16 +#define SDEBUG_OPT_DIF_ERR 32 +#define SDEBUG_OPT_DIX_ERR 64 +#define SDEBUG_OPT_MAC_TIMEOUT 128 +#define SDEBUG_OPT_SHORT_TRANSFER 0x100 +#define SDEBUG_OPT_Q_NOISE 0x200 +#define SDEBUG_OPT_ALL_TSF 0x400 +#define SDEBUG_OPT_RARE_TSF 0x800 +#define SDEBUG_OPT_N_WCE 0x1000 +#define SDEBUG_OPT_RESET_NOISE 0x2000 +#define SDEBUG_OPT_NO_CDB_NOISE 0x4000 +#define SDEBUG_OPT_ALL_NOISE (SDEBUG_OPT_NOISE | SDEBUG_OPT_Q_NOISE | \ + SDEBUG_OPT_RESET_NOISE) +#define SDEBUG_OPT_ALL_INJECTING (SDEBUG_OPT_RECOVERED_ERR | \ + SDEBUG_OPT_TRANSPORT_ERR | \ + SDEBUG_OPT_DIF_ERR | SDEBUG_OPT_DIX_ERR | \ + SDEBUG_OPT_SHORT_TRANSFER) /* When "every_nth" > 0 then modulo "every_nth" commands: - * - a no response is simulated if SCSI_DEBUG_OPT_TIMEOUT is set + * - a no response is simulated if SDEBUG_OPT_TIMEOUT is set * - a RECOVERED_ERROR is simulated on successful read and write - * commands if SCSI_DEBUG_OPT_RECOVERED_ERR is set. + * commands if SDEBUG_OPT_RECOVERED_ERR is set. * - a TRANSPORT_ERROR is simulated on successful read and write - * commands if SCSI_DEBUG_OPT_TRANSPORT_ERR is set. + * commands if SDEBUG_OPT_TRANSPORT_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 no response is simulated if SDEBUG_OPT_TIMEOUT is set * - a RECOVERED_ERROR is simulated on successful read and write - * commands if SCSI_DEBUG_OPT_RECOVERED_ERR is set. + * commands if SDEBUG_OPT_RECOVERED_ERR is set. * - a TRANSPORT_ERROR is simulated on successful read and write - * commands if SCSI_DEBUG_OPT_TRANSPORT_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). + * commands if _DEBUG_OPT_TRANSPORT_ERR is set. + * This will continue on every subsequent command until some other action + * occurs (e.g. the user * writing a new value (other than -1 or 1) to + * every_nth via sysfs). */ /* As indicated in SAM-5 and SPC-4 Unit Attentions (UAs)are returned in @@ -196,7 +195,7 @@ static const char *scsi_debug_version_date = "20141022"; #define UAS_ONLY 1 /* check for UAs only */ #define UAS_TUR 0 /* if no UAs then check if media access possible */ -/* when 1==SCSI_DEBUG_OPT_MEDIUM_ERR, a medium error is simulated at this +/* when 1==SDEBUG_OPT_MEDIUM_ERR, a medium error is simulated at this * sector on read commands: */ #define OPT_MEDIUM_ERR_ADDR 0x1234 /* that's sector 4660 in decimal */ #define OPT_MEDIUM_ERR_NUM 10 /* number of consecutive medium errs */ @@ -517,47 +516,48 @@ struct sdebug_scmd_extra_t { bool inj_short; }; -static int scsi_debug_add_host = DEF_NUM_HOST; -static int scsi_debug_ato = DEF_ATO; -static int scsi_debug_delay = DEF_DELAY; -static int scsi_debug_dev_size_mb = DEF_DEV_SIZE_MB; -static int scsi_debug_dif = DEF_DIF; -static int scsi_debug_dix = DEF_DIX; -static int scsi_debug_dsense = DEF_D_SENSE; -static int scsi_debug_every_nth = DEF_EVERY_NTH; -static int scsi_debug_fake_rw = DEF_FAKE_RW; -static unsigned int scsi_debug_guard = DEF_GUARD; -static int scsi_debug_lowest_aligned = DEF_LOWEST_ALIGNED; -static int scsi_debug_max_luns = DEF_MAX_LUNS; -static int scsi_debug_max_queue = SCSI_DEBUG_CANQUEUE; +static int sdebug_add_host = DEF_NUM_HOST; +static int sdebug_ato = DEF_ATO; +static int sdebug_delay = DEF_DELAY; +static int sdebug_dev_size_mb = DEF_DEV_SIZE_MB; +static int sdebug_dif = DEF_DIF; +static int sdebug_dix = DEF_DIX; +static int sdebug_dsense = DEF_D_SENSE; +static int sdebug_every_nth = DEF_EVERY_NTH; +static int sdebug_fake_rw = DEF_FAKE_RW; +static unsigned int sdebug_guard = DEF_GUARD; +static int sdebug_lowest_aligned = DEF_LOWEST_ALIGNED; +static int sdebug_max_luns = DEF_MAX_LUNS; +static int sdebug_max_queue = SCSI_DEBUG_CANQUEUE; static atomic_t retired_max_queue; /* if > 0 then was prior max_queue */ -static int scsi_debug_ndelay = DEF_NDELAY; -static int scsi_debug_no_lun_0 = DEF_NO_LUN_0; -static int scsi_debug_no_uld = 0; -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_opt_blks = DEF_OPT_BLKS; -static int scsi_debug_opts = DEF_OPTS; -static int scsi_debug_physblk_exp = DEF_PHYSBLK_EXP; -static int scsi_debug_ptype = DEF_PTYPE; /* SCSI peripheral type (0==disk) */ -static int scsi_debug_scsi_level = DEF_SCSI_LEVEL; -static int scsi_debug_sector_size = DEF_SECTOR_SIZE; -static int scsi_debug_virtual_gb = DEF_VIRTUAL_GB; -static int scsi_debug_vpd_use_hostno = DEF_VPD_USE_HOSTNO; -static unsigned int scsi_debug_lbpu = DEF_LBPU; -static unsigned int scsi_debug_lbpws = DEF_LBPWS; -static unsigned int scsi_debug_lbpws10 = DEF_LBPWS10; -static unsigned int scsi_debug_lbprz = DEF_LBPRZ; -static unsigned int scsi_debug_unmap_alignment = DEF_UNMAP_ALIGNMENT; -static unsigned int scsi_debug_unmap_granularity = DEF_UNMAP_GRANULARITY; -static unsigned int scsi_debug_unmap_max_blocks = DEF_UNMAP_MAX_BLOCKS; -static unsigned int scsi_debug_unmap_max_desc = DEF_UNMAP_MAX_DESC; -static unsigned int scsi_debug_write_same_length = DEF_WRITESAME_LENGTH; -static bool scsi_debug_removable = DEF_REMOVABLE; -static bool scsi_debug_clustering; -static bool scsi_debug_host_lock = DEF_HOST_LOCK; -static bool scsi_debug_strict = DEF_STRICT; +static int sdebug_ndelay = DEF_NDELAY; +static int sdebug_no_lun_0 = DEF_NO_LUN_0; +static int sdebug_no_uld; +static int sdebug_num_parts = DEF_NUM_PARTS; +static int sdebug_num_tgts = DEF_NUM_TGTS; /* targets per host */ +static int sdebug_opt_blks = DEF_OPT_BLKS; +static int sdebug_opts = DEF_OPTS; +static int sdebug_physblk_exp = DEF_PHYSBLK_EXP; +static int sdebug_ptype = DEF_PTYPE; /* SCSI peripheral type (0==disk) */ +static int sdebug_scsi_level = DEF_SCSI_LEVEL; +static int sdebug_sector_size = DEF_SECTOR_SIZE; +static int sdebug_virtual_gb = DEF_VIRTUAL_GB; +static int sdebug_vpd_use_hostno = DEF_VPD_USE_HOSTNO; +static unsigned int sdebug_lbpu = DEF_LBPU; +static unsigned int sdebug_lbpws = DEF_LBPWS; +static unsigned int sdebug_lbpws10 = DEF_LBPWS10; +static unsigned int sdebug_lbprz = DEF_LBPRZ; +static unsigned int sdebug_unmap_alignment = DEF_UNMAP_ALIGNMENT; +static unsigned int sdebug_unmap_granularity = DEF_UNMAP_GRANULARITY; +static unsigned int sdebug_unmap_max_blocks = DEF_UNMAP_MAX_BLOCKS; +static unsigned int sdebug_unmap_max_desc = DEF_UNMAP_MAX_DESC; +static unsigned int sdebug_write_same_length = DEF_WRITESAME_LENGTH; +static bool sdebug_removable = DEF_REMOVABLE; +static bool sdebug_clustering; +static bool sdebug_host_lock = DEF_HOST_LOCK; +static bool sdebug_strict = DEF_STRICT; static bool sdebug_any_injecting_opt; +static bool sdebug_verbose; static atomic_t sdebug_cmnd_count; static atomic_t sdebug_completions; @@ -580,8 +580,8 @@ static int sdebug_sectors_per; /* sectors per cylinder */ static unsigned int scsi_debug_lbp(void) { - return ((0 == scsi_debug_fake_rw) && - (scsi_debug_lbpu | scsi_debug_lbpws | scsi_debug_lbpws10)); + return 0 == sdebug_fake_rw && + (sdebug_lbpu || sdebug_lbpws || sdebug_lbpws10); } struct sdebug_dev_info { @@ -674,7 +674,7 @@ static void *fake_store(unsigned long long lba) { lba = do_div(lba, sdebug_store_sectors); - return fake_storep + lba * scsi_debug_sector_size; + return fake_storep + lba * sdebug_sector_size; } static struct sd_dif_tuple *dif_store(sector_t sector) @@ -696,11 +696,11 @@ static void sdebug_max_tgts_luns(void) 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; + (sdebug_num_tgts > hpnt->this_id)) + hpnt->max_id = sdebug_num_tgts + 1; else - hpnt->max_id = scsi_debug_num_tgts; - /* scsi_debug_max_luns; */ + hpnt->max_id = sdebug_num_tgts; + /* sdebug_max_luns; */ hpnt->max_lun = SCSI_W_LUN_REPORT_LUNS + 1; } spin_unlock(&sdebug_host_list_lock); @@ -725,8 +725,7 @@ mk_sense_invalid_fld(struct scsi_cmnd *scp, enum sdeb_cmd_data c_d, } asc = c_d ? INVALID_FIELD_IN_CDB : INVALID_FIELD_IN_PARAM_LIST; memset(sbuff, 0, SCSI_SENSE_BUFFERSIZE); - scsi_build_sense_buffer(scsi_debug_dsense, sbuff, ILLEGAL_REQUEST, - asc, 0); + scsi_build_sense_buffer(sdebug_dsense, sbuff, ILLEGAL_REQUEST, asc, 0); memset(sks, 0, sizeof(sks)); sks[0] = 0x80; if (c_d) @@ -736,7 +735,7 @@ mk_sense_invalid_fld(struct scsi_cmnd *scp, enum sdeb_cmd_data c_d, sks[0] |= 0x7 & in_bit; } put_unaligned_be16(in_byte, sks + 1); - if (scsi_debug_dsense) { + if (sdebug_dsense) { sl = sbuff[7] + 8; sbuff[7] = sl; sbuff[sl] = 0x2; @@ -744,7 +743,7 @@ mk_sense_invalid_fld(struct scsi_cmnd *scp, enum sdeb_cmd_data c_d, memcpy(sbuff + sl + 4, sks, 3); } else memcpy(sbuff + 15, sks, 3); - if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) + if (sdebug_verbose) sdev_printk(KERN_INFO, scp->device, "%s: [sense_key,asc,ascq" "]: [0x5,0x%x,0x0] %c byte=%d, bit=%d\n", my_name, asc, c_d ? 'C' : 'D', in_byte, in_bit); @@ -762,9 +761,9 @@ static void mk_sense_buffer(struct scsi_cmnd *scp, int key, int asc, int asq) } memset(sbuff, 0, SCSI_SENSE_BUFFERSIZE); - scsi_build_sense_buffer(scsi_debug_dsense, sbuff, key, asc, asq); + scsi_build_sense_buffer(sdebug_dsense, sbuff, key, asc, asq); - if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) + if (sdebug_verbose) sdev_printk(KERN_INFO, scp->device, "%s: [sense_key,asc,ascq]: [0x%x,0x%x,0x%x]\n", my_name, key, asc, asq); @@ -778,7 +777,7 @@ mk_sense_invalid_opcode(struct scsi_cmnd *scp) static int scsi_debug_ioctl(struct scsi_device *dev, int cmd, void __user *arg) { - if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) { + if (sdebug_verbose) { if (0x1261 == cmd) sdev_printk(KERN_INFO, dev, "%s: BLKFLSBUF [0x1261]\n", __func__); @@ -814,7 +813,6 @@ static int check_readiness(struct scsi_cmnd *SCpnt, int uas_only, struct sdebug_dev_info * devip) { int k; - bool debug = !!(SCSI_DEBUG_OPT_NOISE & scsi_debug_opts); k = find_first_bit(devip->uas_bm, SDEBUG_NUM_UAS); if (k != SDEBUG_NUM_UAS) { @@ -824,38 +822,38 @@ static int check_readiness(struct scsi_cmnd *SCpnt, int uas_only, case SDEBUG_UA_POR: mk_sense_buffer(SCpnt, UNIT_ATTENTION, UA_RESET_ASC, POWER_ON_RESET_ASCQ); - if (debug) + if (sdebug_verbose) cp = "power on reset"; break; case SDEBUG_UA_BUS_RESET: mk_sense_buffer(SCpnt, UNIT_ATTENTION, UA_RESET_ASC, BUS_RESET_ASCQ); - if (debug) + if (sdebug_verbose) cp = "bus reset"; break; case SDEBUG_UA_MODE_CHANGED: mk_sense_buffer(SCpnt, UNIT_ATTENTION, UA_CHANGED_ASC, MODE_CHANGED_ASCQ); - if (debug) + if (sdebug_verbose) cp = "mode parameters changed"; break; case SDEBUG_UA_CAPACITY_CHANGED: mk_sense_buffer(SCpnt, UNIT_ATTENTION, UA_CHANGED_ASC, CAPACITY_CHANGED_ASCQ); - if (debug) + if (sdebug_verbose) cp = "capacity data changed"; break; case SDEBUG_UA_MICROCODE_CHANGED: mk_sense_buffer(SCpnt, UNIT_ATTENTION, TARGET_CHANGED_ASC, MICROCODE_CHANGED_ASCQ); - if (debug) + if (sdebug_verbose) cp = "microcode has been changed"; break; case SDEBUG_UA_MICROCODE_CHANGED_WO_RESET: mk_sense_buffer(SCpnt, UNIT_ATTENTION, TARGET_CHANGED_ASC, MICROCODE_CHANGED_WO_RESET_ASCQ); - if (debug) + if (sdebug_verbose) cp = "microcode has been changed without reset"; break; case SDEBUG_UA_LUNS_CHANGED: @@ -864,26 +862,25 @@ static int check_readiness(struct scsi_cmnd *SCpnt, int uas_only, * ASC/ASCQ REPORTED LUNS DATA HAS CHANGED on every LUN * on the target, until a REPORT LUNS command is * received. SPC-4 behavior is to report it only once. - * NOTE: scsi_debug_scsi_level does not use the same + * NOTE: sdebug_scsi_level does not use the same * values as struct scsi_device->scsi_level. */ - if (scsi_debug_scsi_level >= 6) /* SPC-4 and above */ + if (sdebug_scsi_level >= 6) /* SPC-4 and above */ clear_luns_changed_on_target(devip); mk_sense_buffer(SCpnt, UNIT_ATTENTION, TARGET_CHANGED_ASC, LUNS_CHANGED_ASCQ); - if (debug) + if (sdebug_verbose) cp = "reported luns data has changed"; break; default: - pr_warn("%s: unexpected unit attention code=%d\n", - __func__, k); - if (debug) + pr_warn("unexpected unit attention code=%d\n", k); + if (sdebug_verbose) cp = "unknown"; break; } clear_bit(k, devip->uas_bm); - if (debug) + if (sdebug_verbose) sdev_printk(KERN_INFO, SCpnt->device, "%s reports: Unit attention: %s\n", my_name, cp); @@ -892,7 +889,7 @@ static int check_readiness(struct scsi_cmnd *SCpnt, int uas_only, if ((UAS_TUR == uas_only) && devip->stopped) { mk_sense_buffer(SCpnt, NOT_READY, LOGICAL_UNIT_NOT_READY, 0x2); - if (debug) + if (sdebug_verbose) sdev_printk(KERN_INFO, SCpnt->device, "%s reports: Not ready: %s\n", my_name, "initializing command required"); @@ -911,7 +908,7 @@ static int fill_from_dev_buffer(struct scsi_cmnd *scp, unsigned char *arr, if (!sdb->length) return 0; if (!(scsi_bidi_cmnd(scp) || scp->sc_data_direction == DMA_FROM_DEVICE)) - return (DID_ERROR << 16); + return DID_ERROR << 16; act_len = sg_copy_from_buffer(sdb->table.sgl, sdb->table.nents, arr, arr_len); @@ -935,7 +932,10 @@ static int fetch_to_dev_buffer(struct scsi_cmnd *scp, unsigned char *arr, static const char * inq_vendor_id = "Linux "; static const char * inq_product_id = "scsi_debug "; -static const char *inq_product_rev = "0184"; /* version less '.' */ +static const char *inq_product_rev = "0186"; /* version less '.' */ +static const u64 naa5_comp_a = 0x5222222000000000ULL; +static const u64 naa5_comp_b = 0x5333333000000000ULL; +static const u64 naa5_comp_c = 0x5111111000000000ULL; /* Device identification VPD page. Returns number of bytes placed in arr */ static int inquiry_evpd_83(unsigned char * arr, int port_group_id, @@ -963,14 +963,8 @@ static int inquiry_evpd_83(unsigned char * arr, int port_group_id, 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; + put_unaligned_be64(naa5_comp_b + dev_id_num, arr + num); + num += 8; /* Target relative port number */ arr[num++] = 0x61; /* proto=sas, binary */ arr[num++] = 0x94; /* PIV=1, target port, rel port */ @@ -986,14 +980,8 @@ static int inquiry_evpd_83(unsigned char * arr, int port_group_id, 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; + put_unaligned_be64(naa5_comp_a + port_a, arr + num); + num += 8; /* NAA-5, Target port group identifier */ arr[num++] = 0x61; /* proto=sas, binary */ arr[num++] = 0x95; /* piv=1, target port group id */ @@ -1001,21 +989,15 @@ static int inquiry_evpd_83(unsigned char * arr, int port_group_id, arr[num++] = 0x4; arr[num++] = 0; arr[num++] = 0; - arr[num++] = (port_group_id >> 8) & 0xff; - arr[num++] = port_group_id & 0xff; + put_unaligned_be16(port_group_id, arr + num); + num += 2; /* 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; + put_unaligned_be64(naa5_comp_a + target_dev_id, arr + num); + num += 8; /* SCSI name string: Target device identifier */ arr[num++] = 0x63; /* proto=sas, UTF-8 */ arr[num++] = 0xa8; /* piv=1, target device, SCSI name string */ @@ -1031,7 +1013,6 @@ static int inquiry_evpd_83(unsigned char * arr, int port_group_id, return num; } - static unsigned char vpd84_data[] = { /* from 4th byte */ 0x22,0x22,0x22,0x0,0xbb,0x0, 0x22,0x22,0x22,0x0,0xbb,0x1, @@ -1101,15 +1082,8 @@ static int inquiry_evpd_88(unsigned char * arr, int target_dev_id) 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; - + put_unaligned_be64(naa5_comp_a + port_a, arr + num); + num += 8; arr[num++] = 0x0; /* reserved */ arr[num++] = 0x0; /* reserved */ arr[num++] = 0x0; @@ -1123,14 +1097,8 @@ static int inquiry_evpd_88(unsigned char * arr, int target_dev_id) 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; + put_unaligned_be64(naa5_comp_a + port_b, arr + num); + num += 8; return num; } @@ -1203,40 +1171,35 @@ static int inquiry_evpd_b0(unsigned char * arr) memcpy(arr, vpdb0_data, sizeof(vpdb0_data)); /* Optimal transfer length granularity */ - gran = 1 << scsi_debug_physblk_exp; - arr[2] = (gran >> 8) & 0xff; - arr[3] = gran & 0xff; + gran = 1 << sdebug_physblk_exp; + put_unaligned_be16(gran, arr + 2); /* Maximum Transfer Length */ - 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; - } + if (sdebug_store_sectors > 0x400) + put_unaligned_be32(sdebug_store_sectors, arr + 4); /* Optimal Transfer Length */ - put_unaligned_be32(scsi_debug_opt_blks, &arr[8]); + put_unaligned_be32(sdebug_opt_blks, &arr[8]); - if (scsi_debug_lbpu) { + if (sdebug_lbpu) { /* Maximum Unmap LBA Count */ - put_unaligned_be32(scsi_debug_unmap_max_blocks, &arr[16]); + put_unaligned_be32(sdebug_unmap_max_blocks, &arr[16]); /* Maximum Unmap Block Descriptor Count */ - put_unaligned_be32(scsi_debug_unmap_max_desc, &arr[20]); + put_unaligned_be32(sdebug_unmap_max_desc, &arr[20]); } /* Unmap Granularity Alignment */ - if (scsi_debug_unmap_alignment) { - put_unaligned_be32(scsi_debug_unmap_alignment, &arr[28]); + if (sdebug_unmap_alignment) { + put_unaligned_be32(sdebug_unmap_alignment, &arr[28]); arr[28] |= 0x80; /* UGAVALID */ } /* Optimal Unmap Granularity */ - put_unaligned_be32(scsi_debug_unmap_granularity, &arr[24]); + put_unaligned_be32(sdebug_unmap_granularity, &arr[24]); /* Maximum WRITE SAME Length */ - put_unaligned_be64(scsi_debug_write_same_length, &arr[32]); + put_unaligned_be64(sdebug_write_same_length, &arr[32]); return 0x3c; /* Mandatory page length for Logical Block Provisioning */ @@ -1261,16 +1224,16 @@ static int inquiry_evpd_b2(unsigned char *arr) memset(arr, 0, 0x4); arr[0] = 0; /* threshold exponent */ - if (scsi_debug_lbpu) + if (sdebug_lbpu) arr[1] = 1 << 7; - if (scsi_debug_lbpws) + if (sdebug_lbpws) arr[1] |= 1 << 6; - if (scsi_debug_lbpws10) + if (sdebug_lbpws10) arr[1] |= 1 << 5; - if (scsi_debug_lbprz) + if (sdebug_lbprz) arr[1] |= 1 << 2; return 0x4; @@ -1287,17 +1250,17 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) int alloc_len, n, ret; bool have_wlun; - alloc_len = (cmd[3] << 8) + cmd[4]; + alloc_len = get_unaligned_be16(cmd + 3); arr = kzalloc(SDEBUG_MAX_INQ_ARR_SZ, GFP_ATOMIC); if (! arr) return DID_REQUEUE << 16; have_wlun = (scp->device->lun == SCSI_W_LUN_REPORT_LUNS); if (have_wlun) pq_pdt = 0x1e; /* present, wlun */ - else if (scsi_debug_no_lun_0 && (0 == devip->lun)) + else if (sdebug_no_lun_0 && (0 == devip->lun)) pq_pdt = 0x7f; /* not present, no device type */ else - pq_pdt = (scsi_debug_ptype & 0x1f); + pq_pdt = (sdebug_ptype & 0x1f); arr[0] = pq_pdt; if (0x2 & cmd[1]) { /* CMDDT bit set */ mk_sense_invalid_fld(scp, SDEB_IN_CDB, 1, 1); @@ -1310,7 +1273,7 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) port_group_id = (((host_no + 1) & 0x7f) << 8) + (devip->channel & 0x7f); - if (0 == scsi_debug_vpd_use_hostno) + if (0 == sdebug_vpd_use_hostno) host_no = 0; lu_id_num = have_wlun ? -1 : (((host_no + 1) * 2000) + (devip->target * 1000) + devip->lun); @@ -1352,9 +1315,9 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) } else if (0x86 == cmd[2]) { /* extended inquiry */ arr[1] = cmd[2]; /*sanity */ arr[3] = 0x3c; /* number of following entries */ - if (scsi_debug_dif == SD_DIF_TYPE3_PROTECTION) + if (sdebug_dif == SD_DIF_TYPE3_PROTECTION) arr[4] = 0x4; /* SPT: GRD_CHK:1 */ - else if (scsi_debug_dif) + else if (sdebug_dif) arr[4] = 0x5; /* SPT: GRD_CHK:1, REF_CHK:1 */ else arr[4] = 0x0; /* no protection stuff */ @@ -1372,8 +1335,7 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) } 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); + put_unaligned_be16(n, arr + 2); } else if (0xb0 == cmd[2]) { /* Block limits (SBC) */ arr[1] = cmd[2]; /*sanity */ arr[3] = inquiry_evpd_b0(&arr[4]); @@ -1388,19 +1350,19 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) kfree(arr); return check_condition_result; } - len = min(((arr[2] << 8) + arr[3]) + 4, alloc_len); + len = min(get_unaligned_be16(arr + 2) + 4, alloc_len); ret = fill_from_dev_buffer(scp, arr, min(len, SDEBUG_MAX_INQ_ARR_SZ)); kfree(arr); return ret; } /* drops through here for a standard inquiry */ - arr[1] = scsi_debug_removable ? 0x80 : 0; /* Removable disk */ - arr[2] = scsi_debug_scsi_level; + arr[1] = sdebug_removable ? 0x80 : 0; /* Removable disk */ + arr[2] = sdebug_scsi_level; arr[3] = 2; /* response_data_format==2 */ arr[4] = SDEBUG_LONG_INQ_SZ - 5; - arr[5] = scsi_debug_dif ? 1 : 0; /* PROTECT bit */ - if (0 == scsi_debug_vpd_use_hostno) + arr[5] = sdebug_dif ? 1 : 0; /* PROTECT bit */ + if (0 == sdebug_vpd_use_hostno) arr[5] = 0x10; /* claim: implicit TGPS */ arr[6] = 0x10; /* claim: MultiP */ /* arr[6] |= 0x40; ... claim: EncServ (enclosure services) */ @@ -1412,9 +1374,9 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) arr[58] = 0x0; arr[59] = 0xa2; /* SAM-5 rev 4 */ arr[60] = 0x4; arr[61] = 0x68; /* SPC-4 rev 37 */ n = 62; - if (scsi_debug_ptype == 0) { + if (sdebug_ptype == 0) { arr[n++] = 0x4; arr[n++] = 0xc5; /* SBC-4 rev 36 */ - } else if (scsi_debug_ptype == 1) { + } else if (sdebug_ptype == 1) { arr[n++] = 0x5; arr[n++] = 0x25; /* SSC-4 rev 3 */ } arr[n++] = 0x20; arr[n++] = 0xe6; /* SPL-3 rev 7 */ @@ -1452,7 +1414,7 @@ static int resp_requests(struct scsi_cmnd * scp, } } else { memcpy(arr, sbuff, SCSI_SENSE_BUFFERSIZE); - if (arr[0] >= 0x70 && dsense == scsi_debug_dsense) + if (arr[0] >= 0x70 && dsense == sdebug_dsense) ; /* have sense and formats match */ else if (arr[0] <= 0x70) { if (dsense) { @@ -1504,9 +1466,11 @@ static int resp_start_stop(struct scsi_cmnd * scp, static sector_t get_sdebug_capacity(void) { - if (scsi_debug_virtual_gb > 0) - return (sector_t)scsi_debug_virtual_gb * - (1073741824 / scsi_debug_sector_size); + static const unsigned int gibibyte = 1073741824; + + if (sdebug_virtual_gb > 0) + return (sector_t)sdebug_virtual_gb * + (gibibyte / sdebug_sector_size); else return sdebug_store_sectors; } @@ -1523,18 +1487,10 @@ static int resp_readcap(struct scsi_cmnd * scp, 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] = (scsi_debug_sector_size >> 8) & 0xff; - arr[7] = scsi_debug_sector_size & 0xff; + put_unaligned_be32(capac, arr + 0); + } else + put_unaligned_be32(0xffffffff, arr + 0); + put_unaligned_be16(sdebug_sector_size, arr + 6); return fill_from_dev_buffer(scp, arr, SDEBUG_READCAP_ARR_SZ); } @@ -1544,34 +1500,27 @@ static int resp_readcap16(struct scsi_cmnd * scp, { unsigned char *cmd = scp->cmnd; unsigned char arr[SDEBUG_READCAP16_ARR_SZ]; - unsigned long long capac; - int k, alloc_len; + int alloc_len; - alloc_len = ((cmd[10] << 24) + (cmd[11] << 16) + (cmd[12] << 8) - + cmd[13]); + alloc_len = get_unaligned_be32(cmd + 10); /* following just in case virtual_gb changed */ sdebug_capacity = get_sdebug_capacity(); 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] = (scsi_debug_sector_size >> 24) & 0xff; - arr[9] = (scsi_debug_sector_size >> 16) & 0xff; - arr[10] = (scsi_debug_sector_size >> 8) & 0xff; - arr[11] = scsi_debug_sector_size & 0xff; - arr[13] = scsi_debug_physblk_exp & 0xf; - arr[14] = (scsi_debug_lowest_aligned >> 8) & 0x3f; + put_unaligned_be64((u64)(sdebug_capacity - 1), arr + 0); + put_unaligned_be32(sdebug_sector_size, arr + 8); + arr[13] = sdebug_physblk_exp & 0xf; + arr[14] = (sdebug_lowest_aligned >> 8) & 0x3f; if (scsi_debug_lbp()) { arr[14] |= 0x80; /* LBPME */ - if (scsi_debug_lbprz) + if (sdebug_lbprz) arr[14] |= 0x40; /* LBPRZ */ } - arr[15] = scsi_debug_lowest_aligned & 0xff; + arr[15] = sdebug_lowest_aligned & 0xff; - if (scsi_debug_dif) { - arr[12] = (scsi_debug_dif - 1) << 1; /* P_TYPE */ + if (sdebug_dif) { + arr[12] = (sdebug_dif - 1) << 1; /* P_TYPE */ arr[12] |= 1; /* PROT_EN */ } @@ -1590,9 +1539,7 @@ static int resp_report_tgtpgs(struct scsi_cmnd * scp, int n, ret, alen, rlen; int port_group_a, port_group_b, port_a, port_b; - alen = ((cmd[6] << 24) + (cmd[7] << 16) + (cmd[8] << 8) - + cmd[9]); - + alen = get_unaligned_be32(cmd + 6); arr = kzalloc(SDEBUG_MAX_TGTPGS_ARR_SZ, GFP_ATOMIC); if (! arr) return DID_REQUEUE << 16; @@ -1605,49 +1552,46 @@ static int resp_report_tgtpgs(struct scsi_cmnd * scp, port_a = 0x1; /* relative port A */ port_b = 0x2; /* relative port B */ port_group_a = (((host_no + 1) & 0x7f) << 8) + - (devip->channel & 0x7f); + (devip->channel & 0x7f); port_group_b = (((host_no + 1) & 0x7f) << 8) + - (devip->channel & 0x7f) + 0x80; + (devip->channel & 0x7f) + 0x80; /* * The asymmetric access state is cycled according to the host_id. */ n = 4; - if (0 == scsi_debug_vpd_use_hostno) { - arr[n++] = host_no % 3; /* Asymm access state */ - arr[n++] = 0x0F; /* claim: all states are supported */ + if (0 == sdebug_vpd_use_hostno) { + arr[n++] = host_no % 3; /* Asymm access state */ + arr[n++] = 0x0F; /* claim: all states are supported */ } else { - arr[n++] = 0x0; /* Active/Optimized path */ - arr[n++] = 0x01; /* claim: only support active/optimized paths */ + arr[n++] = 0x0; /* Active/Optimized path */ + arr[n++] = 0x01; /* only support active/optimized paths */ } - arr[n++] = (port_group_a >> 8) & 0xff; - arr[n++] = port_group_a & 0xff; + put_unaligned_be16(port_group_a, arr + n); + n += 2; arr[n++] = 0; /* Reserved */ arr[n++] = 0; /* Status code */ arr[n++] = 0; /* Vendor unique */ arr[n++] = 0x1; /* One port per group */ arr[n++] = 0; /* Reserved */ arr[n++] = 0; /* Reserved */ - arr[n++] = (port_a >> 8) & 0xff; - arr[n++] = port_a & 0xff; + put_unaligned_be16(port_a, arr + n); + n += 2; arr[n++] = 3; /* Port unavailable */ arr[n++] = 0x08; /* claim: only unavailalbe paths are supported */ - arr[n++] = (port_group_b >> 8) & 0xff; - arr[n++] = port_group_b & 0xff; + put_unaligned_be16(port_group_b, arr + n); + n += 2; arr[n++] = 0; /* Reserved */ arr[n++] = 0; /* Status code */ arr[n++] = 0; /* Vendor unique */ arr[n++] = 0x1; /* One port per group */ arr[n++] = 0; /* Reserved */ arr[n++] = 0; /* Reserved */ - arr[n++] = (port_b >> 8) & 0xff; - arr[n++] = port_b & 0xff; + put_unaligned_be16(port_b, arr + n); + n += 2; rlen = n - 4; - arr[0] = (rlen >> 24) & 0xff; - arr[1] = (rlen >> 16) & 0xff; - arr[2] = (rlen >> 8) & 0xff; - arr[3] = rlen & 0xff; + put_unaligned_be32(rlen, arr + 0); /* * Return the smallest value of either @@ -1871,11 +1815,9 @@ static int resp_format_pg(unsigned char * p, int pcontrol, int target) 0, 0, 0, 0, 0x40, 0, 0, 0}; memcpy(p, format_pg, sizeof(format_pg)); - p[10] = (sdebug_sectors_per >> 8) & 0xff; - p[11] = sdebug_sectors_per & 0xff; - p[12] = (scsi_debug_sector_size >> 8) & 0xff; - p[13] = scsi_debug_sector_size & 0xff; - if (scsi_debug_removable) + put_unaligned_be16(sdebug_sectors_per, p + 10); + put_unaligned_be16(sdebug_sector_size, p + 12); + if (sdebug_removable) p[20] |= 0x20; /* should agree with INQUIRY */ if (1 == pcontrol) memset(p + 2, 0, sizeof(format_pg) - 2); @@ -1889,7 +1831,7 @@ static int resp_caching_pg(unsigned char * p, int pcontrol, int target) unsigned char d_caching_pg[] = {0x8, 18, 0x14, 0, 0xff, 0xff, 0, 0, 0xff, 0xff, 0xff, 0xff, 0x80, 0x14, 0, 0, 0, 0, 0, 0}; - if (SCSI_DEBUG_OPT_N_WCE & scsi_debug_opts) + if (SDEBUG_OPT_N_WCE & sdebug_opts) caching_pg[2] &= ~0x4; /* set WCE=0 (default WCE=1) */ memcpy(p, caching_pg, sizeof(caching_pg)); if (1 == pcontrol) @@ -1906,12 +1848,12 @@ static int resp_ctrl_m_pg(unsigned char * p, int pcontrol, int target) unsigned char d_ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0, 0, 0, 0x2, 0x4b}; - if (scsi_debug_dsense) + if (sdebug_dsense) ctrl_m_pg[2] |= 0x4; else ctrl_m_pg[2] &= ~0x4; - if (scsi_debug_ato) + if (sdebug_ato) ctrl_m_pg[5] |= 0x80; /* ATO=1 */ memcpy(p, ctrl_m_pg, sizeof(ctrl_m_pg)); @@ -1955,31 +1897,29 @@ static int resp_sas_pcd_m_spg(unsigned char * p, int pcontrol, int target, { /* 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, + 0, 0, 0, 0, 0, 0, 0, 0, /* insert SAS addr */ + 0, 0, 0, 0, 0, 0, 0, 0, /* insert SAS addr */ 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, + 0, 0, 0, 0, 0, 0, 0, 0, /* insert SAS addr */ + 0, 0, 0, 0, 0, 0, 0, 0, /* insert SAS addr */ 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; + put_unaligned_be64(naa5_comp_a, sas_pcd_m_pg + 16); + put_unaligned_be64(naa5_comp_c + 1, sas_pcd_m_pg + 24); + put_unaligned_be64(naa5_comp_a, sas_pcd_m_pg + 64); + put_unaligned_be64(naa5_comp_c + 1, sas_pcd_m_pg + 72); 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; + put_unaligned_be32(port_a, p + 20); + put_unaligned_be32(port_b, p + 48 + 20); if (1 == pcontrol) memset(p + 4, 0, sizeof(sas_pcd_m_pg) - 4); return sizeof(sas_pcd_m_pg); @@ -2005,7 +1945,7 @@ resp_mode_sense(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) unsigned char dbd, llbaa; int pcontrol, pcode, subpcode, bd_len; unsigned char dev_spec; - int k, alloc_len, msense_6, offset, len, target_dev_id; + int alloc_len, msense_6, offset, len, target_dev_id; int target = scp->device->id; unsigned char * ap; unsigned char arr[SDEBUG_MAX_MSENSE_SZ]; @@ -2017,11 +1957,11 @@ resp_mode_sense(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) subpcode = cmd[3]; msense_6 = (MODE_SENSE == cmd[0]); llbaa = msense_6 ? 0 : !!(cmd[1] & 0x10); - if ((0 == scsi_debug_ptype) && (0 == dbd)) + if ((0 == sdebug_ptype) && (0 == dbd)) bd_len = llbaa ? 16 : 8; else bd_len = 0; - alloc_len = msense_6 ? cmd[4] : ((cmd[7] << 8) | cmd[8]); + alloc_len = msense_6 ? cmd[4] : get_unaligned_be16(cmd + 7); memset(arr, 0, SDEBUG_MAX_MSENSE_SZ); if (0x3 == pcontrol) { /* Saving values not supported */ mk_sense_buffer(scp, ILLEGAL_REQUEST, SAVING_PARAMS_UNSUP, 0); @@ -2030,7 +1970,7 @@ resp_mode_sense(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) target_dev_id = ((devip->sdbg_host->shost->host_no + 1) * 2000) + (devip->target * 1000) - 3; /* set DPOFUA bit for disks */ - if (0 == scsi_debug_ptype) + if (0 == sdebug_ptype) dev_spec = (DEV_READONLY(target) ? 0x80 : 0x0) | 0x10; else dev_spec = 0x0; @@ -2050,30 +1990,16 @@ resp_mode_sense(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) sdebug_capacity = get_sdebug_capacity(); if (8 == bd_len) { - if (sdebug_capacity > 0xfffffffe) { - ap[0] = 0xff; - ap[1] = 0xff; - ap[2] = 0xff; - ap[3] = 0xff; - } else { - ap[0] = (sdebug_capacity >> 24) & 0xff; - ap[1] = (sdebug_capacity >> 16) & 0xff; - ap[2] = (sdebug_capacity >> 8) & 0xff; - ap[3] = sdebug_capacity & 0xff; - } - ap[6] = (scsi_debug_sector_size >> 8) & 0xff; - ap[7] = scsi_debug_sector_size & 0xff; + if (sdebug_capacity > 0xfffffffe) + put_unaligned_be32(0xffffffff, ap + 0); + else + put_unaligned_be32(sdebug_capacity, ap + 0); + put_unaligned_be16(sdebug_sector_size, ap + 6); offset += bd_len; ap = arr + offset; } else if (16 == bd_len) { - unsigned long long capac = sdebug_capacity; - - for (k = 0; k < 8; ++k, capac >>= 8) - ap[7 - k] = capac & 0xff; - ap[12] = (scsi_debug_sector_size >> 24) & 0xff; - ap[13] = (scsi_debug_sector_size >> 16) & 0xff; - ap[14] = (scsi_debug_sector_size >> 8) & 0xff; - ap[15] = scsi_debug_sector_size & 0xff; + put_unaligned_be64((u64)sdebug_capacity, ap + 0); + put_unaligned_be32(sdebug_sector_size, ap + 12); offset += bd_len; ap = arr + offset; } @@ -2149,10 +2075,8 @@ resp_mode_sense(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) } if (msense_6) arr[0] = offset - 1; - else { - arr[0] = ((offset - 2) >> 8) & 0xff; - arr[1] = (offset - 2) & 0xff; - } + else + put_unaligned_be16((offset - 2), arr + 0); return fill_from_dev_buffer(scp, arr, min(alloc_len, offset)); } @@ -2170,21 +2094,20 @@ resp_mode_select(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) memset(arr, 0, sizeof(arr)); pf = cmd[1] & 0x10; sp = cmd[1] & 0x1; - param_len = mselect6 ? cmd[4] : ((cmd[7] << 8) + cmd[8]); + param_len = mselect6 ? cmd[4] : get_unaligned_be16(cmd + 7); if ((0 == pf) || sp || (param_len > SDEBUG_MAX_MSELECT_SZ)) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, mselect6 ? 4 : 7, -1); 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)) + return DID_ERROR << 16; + else if (sdebug_verbose && (res < param_len)) sdev_printk(KERN_INFO, scp->device, "%s: cdb indicated=%d, IO sent=%d bytes\n", __func__, 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]); + md_len = mselect6 ? (arr[0] + 1) : (get_unaligned_be16(arr + 0) + 2); + bd_len = mselect6 ? arr[3] : get_unaligned_be16(arr + 6); if (md_len > 2) { mk_sense_invalid_fld(scp, SDEB_IN_DATA, 0, -1); return check_condition_result; @@ -2197,7 +2120,7 @@ resp_mode_select(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) return check_condition_result; } spf = !!(arr[off] & 0x40); - pg_len = spf ? ((arr[off + 2] << 8) + arr[off + 3] + 4) : + pg_len = spf ? (get_unaligned_be16(arr + off + 2) + 4) : (arr[off + 1] + 2); if ((pg_len + off) > param_len) { mk_sense_buffer(scp, ILLEGAL_REQUEST, @@ -2216,7 +2139,7 @@ resp_mode_select(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) 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); + sdebug_dsense = !!(ctrl_m_pg[2] & 0x4); goto set_mode_changed_ua; } break; @@ -2279,7 +2202,7 @@ static int resp_log_sense(struct scsi_cmnd * scp, pcontrol = (cmd[2] & 0xc0) >> 6; pcode = cmd[2] & 0x3f; subpcode = cmd[3] & 0xff; - alloc_len = (cmd[7] << 8) + cmd[8]; + alloc_len = get_unaligned_be16(cmd + 7); arr[0] = pcode; if (0 == subpcode) { switch (pcode) { @@ -2336,7 +2259,7 @@ static int resp_log_sense(struct scsi_cmnd * scp, mk_sense_invalid_fld(scp, SDEB_IN_CDB, 3, -1); return check_condition_result; } - len = min(((arr[2] << 8) + arr[3]) + 4, alloc_len); + len = min(get_unaligned_be16(arr + 2) + 4, alloc_len); return fill_from_dev_buffer(scp, arr, min(len, SDEBUG_MAX_INQ_ARR_SZ)); } @@ -2384,15 +2307,15 @@ do_device_access(struct scsi_cmnd *scmd, u64 lba, u32 num, bool do_write) rest = block + num - sdebug_store_sectors; ret = sg_copy_buffer(sdb->table.sgl, sdb->table.nents, - fake_storep + (block * scsi_debug_sector_size), - (num - rest) * scsi_debug_sector_size, 0, do_write); - if (ret != (num - rest) * scsi_debug_sector_size) + fake_storep + (block * sdebug_sector_size), + (num - rest) * sdebug_sector_size, 0, do_write); + if (ret != (num - rest) * sdebug_sector_size) return ret; if (rest) { ret += sg_copy_buffer(sdb->table.sgl, sdb->table.nents, - fake_storep, rest * scsi_debug_sector_size, - (num - rest) * scsi_debug_sector_size, do_write); + fake_storep, rest * sdebug_sector_size, + (num - rest) * sdebug_sector_size, do_write); } return ret; @@ -2407,7 +2330,7 @@ comp_write_worker(u64 lba, u32 num, const u8 *arr) bool res; u64 block, rest = 0; u32 store_blks = sdebug_store_sectors; - u32 lb_size = scsi_debug_sector_size; + u32 lb_size = sdebug_sector_size; block = do_div(lba, store_blks); if (block + num > store_blks) @@ -2434,7 +2357,7 @@ static __be16 dif_compute_csum(const void *buf, int len) { __be16 csum; - if (scsi_debug_guard) + if (sdebug_guard) csum = (__force __be16)ip_compute_csum(buf, len); else csum = cpu_to_be16(crc_t10dif(buf, len)); @@ -2445,7 +2368,7 @@ static __be16 dif_compute_csum(const void *buf, int len) static int dif_verify(struct sd_dif_tuple *sdt, const void *data, sector_t sector, u32 ei_lba) { - __be16 csum = dif_compute_csum(data, scsi_debug_sector_size); + __be16 csum = dif_compute_csum(data, sdebug_sector_size); if (sdt->guard_tag != csum) { pr_err("GUARD check failed on sector %lu rcvd 0x%04x, data 0x%04x\n", @@ -2454,13 +2377,13 @@ static int dif_verify(struct sd_dif_tuple *sdt, const void *data, be16_to_cpu(csum)); return 0x01; } - if (scsi_debug_dif == SD_DIF_TYPE1_PROTECTION && + if (sdebug_dif == SD_DIF_TYPE1_PROTECTION && be32_to_cpu(sdt->ref_tag) != (sector & 0xffffffff)) { pr_err("REF check failed on sector %lu\n", (unsigned long)sector); return 0x03; } - if (scsi_debug_dif == SD_DIF_TYPE2_PROTECTION && + if (sdebug_dif == SD_DIF_TYPE2_PROTECTION && be32_to_cpu(sdt->ref_tag) != ei_lba) { pr_err("REF check failed on sector %lu\n", (unsigned long)sector); @@ -2592,13 +2515,13 @@ resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) break; } if (check_prot) { - if (scsi_debug_dif == SD_DIF_TYPE2_PROTECTION && + if (sdebug_dif == SD_DIF_TYPE2_PROTECTION && (cmd[1] & 0xe0)) { mk_sense_invalid_opcode(scp); return check_condition_result; } - if ((scsi_debug_dif == SD_DIF_TYPE1_PROTECTION || - scsi_debug_dif == SD_DIF_TYPE3_PROTECTION) && + if ((sdebug_dif == SD_DIF_TYPE1_PROTECTION || + sdebug_dif == SD_DIF_TYPE3_PROTECTION) && (cmd[1] & 0xe0) == 0) sdev_printk(KERN_ERR, scp->device, "Unprotected RD " "to DIF device\n"); @@ -2622,7 +2545,7 @@ resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) return check_condition_result; } - if ((SCSI_DEBUG_OPT_MEDIUM_ERR & scsi_debug_opts) && + if ((SDEBUG_OPT_MEDIUM_ERR & sdebug_opts) && (lba <= (OPT_MEDIUM_ERR_ADDR + OPT_MEDIUM_ERR_NUM - 1)) && ((lba + num) > OPT_MEDIUM_ERR_ADDR)) { /* claim unrecoverable read error */ @@ -2641,7 +2564,7 @@ resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) read_lock_irqsave(&atomic_rw, iflags); /* DIX + T10 DIF */ - if (scsi_debug_dix && scsi_prot_sg_count(scp)) { + if (sdebug_dix && scsi_prot_sg_count(scp)) { int prot_ret = prot_verify_read(scp, lba, num, ei_lba); if (prot_ret) { @@ -2750,13 +2673,13 @@ static int prot_verify_write(struct scsi_cmnd *SCpnt, sector_t start_sec, ret = dif_verify(sdt, daddr, sector, ei_lba); if (ret) { - dump_sector(daddr, scsi_debug_sector_size); + dump_sector(daddr, sdebug_sector_size); goto out; } sector++; ei_lba++; - dpage_offset += scsi_debug_sector_size; + dpage_offset += sdebug_sector_size; } diter.consumed = dpage_offset; sg_miter_stop(&diter); @@ -2777,24 +2700,18 @@ out: static unsigned long lba_to_map_index(sector_t lba) { - if (scsi_debug_unmap_alignment) { - lba += scsi_debug_unmap_granularity - - scsi_debug_unmap_alignment; - } - sector_div(lba, scsi_debug_unmap_granularity); - + if (sdebug_unmap_alignment) + lba += sdebug_unmap_granularity - sdebug_unmap_alignment; + sector_div(lba, sdebug_unmap_granularity); return lba; } static sector_t map_index_to_lba(unsigned long index) { - sector_t lba = index * scsi_debug_unmap_granularity; - - if (scsi_debug_unmap_alignment) { - lba -= scsi_debug_unmap_granularity - - scsi_debug_unmap_alignment; - } + sector_t lba = index * sdebug_unmap_granularity; + if (sdebug_unmap_alignment) + lba -= sdebug_unmap_granularity - sdebug_unmap_alignment; return lba; } @@ -2815,7 +2732,6 @@ static unsigned int map_state(sector_t lba, unsigned int *num) end = min_t(sector_t, sdebug_store_sectors, map_index_to_lba(next)); *num = end - lba; - return mapped; } @@ -2841,19 +2757,19 @@ static void unmap_region(sector_t lba, unsigned int len) unsigned long index = lba_to_map_index(lba); if (lba == map_index_to_lba(index) && - lba + scsi_debug_unmap_granularity <= end && + lba + sdebug_unmap_granularity <= end && index < map_size) { clear_bit(index, map_storep); - if (scsi_debug_lbprz) { + if (sdebug_lbprz) { memset(fake_storep + - lba * scsi_debug_sector_size, 0, - scsi_debug_sector_size * - scsi_debug_unmap_granularity); + lba * sdebug_sector_size, 0, + sdebug_sector_size * + sdebug_unmap_granularity); } if (dif_storep) { memset(dif_storep + lba, 0xff, sizeof(*dif_storep) * - scsi_debug_unmap_granularity); + sdebug_unmap_granularity); } } lba = map_index_to_lba(index + 1); @@ -2911,13 +2827,13 @@ resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) break; } if (check_prot) { - if (scsi_debug_dif == SD_DIF_TYPE2_PROTECTION && + if (sdebug_dif == SD_DIF_TYPE2_PROTECTION && (cmd[1] & 0xe0)) { mk_sense_invalid_opcode(scp); return check_condition_result; } - if ((scsi_debug_dif == SD_DIF_TYPE1_PROTECTION || - scsi_debug_dif == SD_DIF_TYPE3_PROTECTION) && + if ((sdebug_dif == SD_DIF_TYPE1_PROTECTION || + sdebug_dif == SD_DIF_TYPE3_PROTECTION) && (cmd[1] & 0xe0) == 0) sdev_printk(KERN_ERR, scp->device, "Unprotected WR " "to DIF device\n"); @@ -2938,7 +2854,7 @@ resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) write_lock_irqsave(&atomic_rw, iflags); /* DIX + T10 DIF */ - if (scsi_debug_dix && scsi_prot_sg_count(scp)) { + if (sdebug_dix && scsi_prot_sg_count(scp)) { int prot_ret = prot_verify_write(scp, lba, num, ei_lba); if (prot_ret) { @@ -2953,12 +2869,11 @@ resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) map_region(lba, num); write_unlock_irqrestore(&atomic_rw, iflags); if (-1 == ret) - return (DID_ERROR << 16); - else if ((ret < (num * scsi_debug_sector_size)) && - (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)) + return DID_ERROR << 16; + else if (sdebug_verbose && (ret < (num * sdebug_sector_size))) sdev_printk(KERN_INFO, scp->device, "%s: write: cdb indicated=%u, IO sent=%d bytes\n", - my_name, num * scsi_debug_sector_size, ret); + my_name, num * sdebug_sector_size, ret); if (sdebug_any_injecting_opt) { struct sdebug_scmd_extra_t *ep = scsi_cmd_priv(scp); @@ -2986,6 +2901,7 @@ resp_write_same(struct scsi_cmnd *scp, u64 lba, u32 num, u32 ei_lba, unsigned long iflags; unsigned long long i; int ret; + u64 lba_off; ret = check_device_access_params(scp, lba, num); if (ret) @@ -2998,31 +2914,29 @@ resp_write_same(struct scsi_cmnd *scp, u64 lba, u32 num, u32 ei_lba, goto out; } + lba_off = lba * sdebug_sector_size; /* if ndob then zero 1 logical block, else fetch 1 logical block */ if (ndob) { - memset(fake_storep + (lba * scsi_debug_sector_size), 0, - scsi_debug_sector_size); + memset(fake_storep + lba_off, 0, sdebug_sector_size); ret = 0; } else - ret = fetch_to_dev_buffer(scp, fake_storep + - (lba * scsi_debug_sector_size), - scsi_debug_sector_size); + ret = fetch_to_dev_buffer(scp, fake_storep + lba_off, + sdebug_sector_size); if (-1 == ret) { write_unlock_irqrestore(&atomic_rw, iflags); - return (DID_ERROR << 16); - } else if ((ret < (num * scsi_debug_sector_size)) && - (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)) + return DID_ERROR << 16; + } else if (sdebug_verbose && (ret < (num * sdebug_sector_size))) sdev_printk(KERN_INFO, scp->device, "%s: %s: cdb indicated=%u, IO sent=%d bytes\n", my_name, "write same", - num * scsi_debug_sector_size, ret); + num * sdebug_sector_size, ret); /* Copy first sector to remaining blocks */ for (i = 1 ; i < num ; i++) - memcpy(fake_storep + ((lba + i) * scsi_debug_sector_size), - fake_storep + (lba * scsi_debug_sector_size), - scsi_debug_sector_size); + memcpy(fake_storep + ((lba + i) * sdebug_sector_size), + fake_storep + lba_off, + sdebug_sector_size); if (scsi_debug_lbp()) map_region(lba, num); @@ -3042,7 +2956,7 @@ resp_write_same_10(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) bool unmap = false; if (cmd[1] & 0x8) { - if (scsi_debug_lbpws10 == 0) { + if (sdebug_lbpws10 == 0) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 1, 3); return check_condition_result; } else @@ -3050,7 +2964,7 @@ resp_write_same_10(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) } lba = get_unaligned_be32(cmd + 2); num = get_unaligned_be16(cmd + 7); - if (num > scsi_debug_write_same_length) { + if (num > sdebug_write_same_length) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 7, -1); return check_condition_result; } @@ -3068,7 +2982,7 @@ resp_write_same_16(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) bool ndob = false; if (cmd[1] & 0x8) { /* UNMAP */ - if (scsi_debug_lbpws == 0) { + if (sdebug_lbpws == 0) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 1, 3); return check_condition_result; } else @@ -3078,7 +2992,7 @@ resp_write_same_16(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) ndob = true; lba = get_unaligned_be64(cmd + 2); num = get_unaligned_be32(cmd + 10); - if (num > scsi_debug_write_same_length) { + if (num > sdebug_write_same_length) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 10, -1); return check_condition_result; } @@ -3142,7 +3056,7 @@ resp_comp_write(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) u8 *fake_storep_hold; u64 lba; u32 dnum; - u32 lb_size = scsi_debug_sector_size; + u32 lb_size = sdebug_sector_size; u8 num; unsigned long iflags; int ret; @@ -3152,13 +3066,13 @@ resp_comp_write(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) num = cmd[13]; /* 1 to a maximum of 255 logical blocks */ if (0 == num) return 0; /* degenerate case, not an error */ - if (scsi_debug_dif == SD_DIF_TYPE2_PROTECTION && + if (sdebug_dif == SD_DIF_TYPE2_PROTECTION && (cmd[1] & 0xe0)) { mk_sense_invalid_opcode(scp); return check_condition_result; } - if ((scsi_debug_dif == SD_DIF_TYPE1_PROTECTION || - scsi_debug_dif == SD_DIF_TYPE3_PROTECTION) && + if ((sdebug_dif == SD_DIF_TYPE1_PROTECTION || + sdebug_dif == SD_DIF_TYPE3_PROTECTION) && (cmd[1] & 0xe0) == 0) sdev_printk(KERN_ERR, scp->device, "Unprotected WR " "to DIF device\n"); @@ -3193,8 +3107,7 @@ resp_comp_write(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) if (ret == -1) { retval = DID_ERROR << 16; goto cleanup; - } else if ((ret < (dnum * lb_size)) && - (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)) + } else if (sdebug_verbose && (ret < (dnum * lb_size))) sdev_printk(KERN_INFO, scp->device, "%s: compare_write: cdb " "indicated=%u, IO sent=%d bytes\n", my_name, dnum * lb_size, ret); @@ -3233,7 +3146,7 @@ resp_unmap(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) BUG_ON(scsi_bufflen(scp) != payload_len); descriptors = (payload_len - 8) / 16; - if (descriptors > scsi_debug_unmap_max_desc) { + if (descriptors > sdebug_unmap_max_desc) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 7, -1); return check_condition_result; } @@ -3339,10 +3252,10 @@ static int resp_report_luns(struct scsi_cmnd * scp, } /* 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; + lun_cnt = sdebug_max_luns; if (1 == select_report) lun_cnt = 0; - else if (scsi_debug_no_lun_0 && (lun_cnt > 0)) + else if (sdebug_no_lun_0 && (lun_cnt > 0)) --lun_cnt; want_wlun = (select_report > 0) ? 1 : 0; num = lun_cnt + want_wlun; @@ -3356,7 +3269,7 @@ static int resp_report_luns(struct scsi_cmnd * scp, } 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); + for (i = 0, lun = (sdebug_no_lun_0 ? 1 : 0); ((i < lun_cnt) && ((unsigned char *)(one_lun + i) < max_addr)); i++, lun++) { upper = (lun >> 8) & 0x3f; @@ -3486,7 +3399,7 @@ static void sdebug_q_cmd_complete(unsigned long indx) return; } k = find_last_bit(queued_in_use_bm, retval); - if ((k < scsi_debug_max_queue) || (k == retval)) + if ((k < sdebug_max_queue) || (k == retval)) atomic_set(&retired_max_queue, 0); else atomic_set(&retired_max_queue, k + 1); @@ -3546,7 +3459,7 @@ sdebug_q_cmd_hrt_complete(struct hrtimer *timer) goto the_end; } k = find_last_bit(queued_in_use_bm, retval); - if ((k < scsi_debug_max_queue) || (k == retval)) + if ((k < sdebug_max_queue) || (k == retval)) atomic_set(&retired_max_queue, 0); else atomic_set(&retired_max_queue, k + 1); @@ -3614,7 +3527,7 @@ static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev) static int scsi_debug_slave_alloc(struct scsi_device *sdp) { - if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) + if (sdebug_verbose) pr_info("slave_alloc <%u %u %u %llu>\n", sdp->host->host_no, sdp->channel, sdp->id, sdp->lun); queue_flag_set_unlocked(QUEUE_FLAG_BIDI, sdp->request_queue); @@ -3625,7 +3538,7 @@ static int scsi_debug_slave_configure(struct scsi_device *sdp) { struct sdebug_dev_info *devip; - if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) + if (sdebug_verbose) pr_info("slave_configure <%u %u %u %llu>\n", sdp->host->host_no, sdp->channel, sdp->id, sdp->lun); if (sdp->host->max_cmd_len != SCSI_DEBUG_MAX_CMD_LEN) @@ -3635,7 +3548,7 @@ static int scsi_debug_slave_configure(struct scsi_device *sdp) return 1; /* no resources, will be marked offline */ sdp->hostdata = devip; blk_queue_max_segment_size(sdp->request_queue, -1U); - if (scsi_debug_no_uld) + if (sdebug_no_uld) sdp->no_uld_attach = 1; return 0; } @@ -3645,7 +3558,7 @@ static void scsi_debug_slave_destroy(struct scsi_device *sdp) struct sdebug_dev_info *devip = (struct sdebug_dev_info *)sdp->hostdata; - if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) + if (sdebug_verbose) pr_info("slave_destroy <%u %u %u %llu>\n", sdp->host->host_no, sdp->channel, sdp->id, sdp->lun); if (devip) { @@ -3664,7 +3577,7 @@ static int stop_queued_cmnd(struct scsi_cmnd *cmnd) struct sdebug_dev_info *devip; spin_lock_irqsave(&queued_arr_lock, iflags); - qmax = scsi_debug_max_queue; + qmax = sdebug_max_queue; r_qmax = atomic_read(&retired_max_queue); if (r_qmax > qmax) qmax = r_qmax; @@ -3679,15 +3592,15 @@ static int stop_queued_cmnd(struct scsi_cmnd *cmnd) sqcp->a_cmnd = NULL; spin_unlock_irqrestore(&queued_arr_lock, iflags); - if (scsi_debug_ndelay > 0) { + if (sdebug_ndelay > 0) { if (sqcp->sd_hrtp) hrtimer_cancel( &sqcp->sd_hrtp->hrt); - } else if (scsi_debug_delay > 0) { + } else if (sdebug_delay > 0) { if (sqcp->cmnd_timerp) del_timer_sync( sqcp->cmnd_timerp); - } else if (scsi_debug_delay < 0) { + } else if (sdebug_delay < 0) { if (sqcp->tletp) tasklet_kill(sqcp->tletp); } @@ -3720,15 +3633,15 @@ static void stop_all_queued(void) sqcp->a_cmnd = NULL; spin_unlock_irqrestore(&queued_arr_lock, iflags); - if (scsi_debug_ndelay > 0) { + if (sdebug_ndelay > 0) { if (sqcp->sd_hrtp) hrtimer_cancel( &sqcp->sd_hrtp->hrt); - } else if (scsi_debug_delay > 0) { + } else if (sdebug_delay > 0) { if (sqcp->cmnd_timerp) del_timer_sync( sqcp->cmnd_timerp); - } else if (scsi_debug_delay < 0) { + } else if (sdebug_delay < 0) { if (sqcp->tletp) tasklet_kill(sqcp->tletp); } @@ -3765,7 +3678,7 @@ static int scsi_debug_abort(struct scsi_cmnd *SCpnt) ++num_aborts; if (SCpnt) { if (SCpnt->device && - (SCSI_DEBUG_OPT_ALL_NOISE & scsi_debug_opts)) + (SDEBUG_OPT_ALL_NOISE & sdebug_opts)) sdev_printk(KERN_INFO, SCpnt->device, "%s\n", __func__); stop_queued_cmnd(SCpnt); @@ -3781,7 +3694,7 @@ static int scsi_debug_device_reset(struct scsi_cmnd * SCpnt) if (SCpnt && SCpnt->device) { struct scsi_device *sdp = SCpnt->device; - if (SCSI_DEBUG_OPT_ALL_NOISE & scsi_debug_opts) + if (SDEBUG_OPT_ALL_NOISE & sdebug_opts) sdev_printk(KERN_INFO, sdp, "%s\n", __func__); devip = devInfoReg(sdp); if (devip) @@ -3804,7 +3717,7 @@ static int scsi_debug_target_reset(struct scsi_cmnd *SCpnt) sdp = SCpnt->device; if (!sdp) goto lie; - if (SCSI_DEBUG_OPT_ALL_NOISE & scsi_debug_opts) + if (SDEBUG_OPT_ALL_NOISE & sdebug_opts) sdev_printk(KERN_INFO, sdp, "%s\n", __func__); hp = sdp->host; if (!hp) @@ -3819,7 +3732,7 @@ static int scsi_debug_target_reset(struct scsi_cmnd *SCpnt) ++k; } } - if (SCSI_DEBUG_OPT_RESET_NOISE & scsi_debug_opts) + if (SDEBUG_OPT_RESET_NOISE & sdebug_opts) sdev_printk(KERN_INFO, sdp, "%s: %d device(s) found in target\n", __func__, k); lie: @@ -3838,7 +3751,7 @@ static int scsi_debug_bus_reset(struct scsi_cmnd * SCpnt) if (!(SCpnt && SCpnt->device)) goto lie; sdp = SCpnt->device; - if (SCSI_DEBUG_OPT_ALL_NOISE & scsi_debug_opts) + if (SDEBUG_OPT_ALL_NOISE & sdebug_opts) sdev_printk(KERN_INFO, sdp, "%s\n", __func__); hp = sdp->host; if (hp) { @@ -3852,7 +3765,7 @@ static int scsi_debug_bus_reset(struct scsi_cmnd * SCpnt) } } } - if (SCSI_DEBUG_OPT_RESET_NOISE & scsi_debug_opts) + if (SDEBUG_OPT_RESET_NOISE & sdebug_opts) sdev_printk(KERN_INFO, sdp, "%s: %d device(s) found in host\n", __func__, k); lie: @@ -3866,7 +3779,7 @@ static int scsi_debug_host_reset(struct scsi_cmnd * SCpnt) int k = 0; ++num_host_resets; - if ((SCpnt->device) && (SCSI_DEBUG_OPT_ALL_NOISE & scsi_debug_opts)) + if ((SCpnt->device) && (SDEBUG_OPT_ALL_NOISE & sdebug_opts)) sdev_printk(KERN_INFO, SCpnt->device, "%s\n", __func__); spin_lock(&sdebug_host_list_lock); list_for_each_entry(sdbg_host, &sdebug_host_list, host_list) { @@ -3878,7 +3791,7 @@ static int scsi_debug_host_reset(struct scsi_cmnd * SCpnt) } spin_unlock(&sdebug_host_list_lock); stop_all_queued(); - if (SCSI_DEBUG_OPT_RESET_NOISE & scsi_debug_opts) + if (SDEBUG_OPT_RESET_NOISE & sdebug_opts) sdev_printk(KERN_INFO, SCpnt->device, "%s: %d device(s) found\n", __func__, k); return SUCCESS; @@ -3893,22 +3806,22 @@ static void __init sdebug_build_parts(unsigned char *ramp, int heads_by_sects, start_sec, end_sec; /* assume partition table already zeroed */ - if ((scsi_debug_num_parts < 1) || (store_size < 1048576)) + if ((sdebug_num_parts < 1) || (store_size < 1048576)) return; - if (scsi_debug_num_parts > SDEBUG_MAX_PARTS) { - scsi_debug_num_parts = SDEBUG_MAX_PARTS; + if (sdebug_num_parts > SDEBUG_MAX_PARTS) { + sdebug_num_parts = SDEBUG_MAX_PARTS; pr_warn("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; + / sdebug_num_parts; heads_by_sects = sdebug_heads * sdebug_sectors_per; starts[0] = sdebug_sectors_per; - for (k = 1; k < scsi_debug_num_parts; ++k) + for (k = 1; k < sdebug_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; + starts[sdebug_num_parts] = num_sectors; + starts[sdebug_num_parts + 1] = 0; ramp[510] = 0x55; /* magic partition markings */ ramp[511] = 0xAA; @@ -3955,7 +3868,7 @@ schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip, sdp = cmnd->device; - if ((scsi_result) && (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)) + if (sdebug_verbose && scsi_result) sdev_printk(KERN_INFO, sdp, "%s: non-zero result=0x%x\n", __func__, scsi_result); if (delta_jiff == 0) @@ -3972,29 +3885,29 @@ schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip, goto respond_in_thread; } else scsi_result = device_qfull_result; - } else if ((scsi_debug_every_nth != 0) && - (SCSI_DEBUG_OPT_RARE_TSF & scsi_debug_opts) && + } else if ((sdebug_every_nth != 0) && + (SDEBUG_OPT_RARE_TSF & sdebug_opts) && (scsi_result == 0)) { if ((num_in_q == (qdepth - 1)) && (atomic_inc_return(&sdebug_a_tsf) >= - abs(scsi_debug_every_nth))) { + abs(sdebug_every_nth))) { atomic_set(&sdebug_a_tsf, 0); inject = 1; scsi_result = device_qfull_result; } } - k = find_first_zero_bit(queued_in_use_bm, scsi_debug_max_queue); - if (k >= scsi_debug_max_queue) { + k = find_first_zero_bit(queued_in_use_bm, sdebug_max_queue); + if (k >= sdebug_max_queue) { spin_unlock_irqrestore(&queued_arr_lock, iflags); if (scsi_result) goto respond_in_thread; - else if (SCSI_DEBUG_OPT_ALL_TSF & scsi_debug_opts) + else if (SDEBUG_OPT_ALL_TSF & sdebug_opts) scsi_result = device_qfull_result; - if (SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts) + if (SDEBUG_OPT_Q_NOISE & sdebug_opts) sdev_printk(KERN_INFO, sdp, "%s: max_queue=%d exceeded, %s\n", - __func__, scsi_debug_max_queue, + __func__, sdebug_max_queue, (scsi_result ? "status: TASK SET FULL" : "report: host busy")); if (scsi_result) @@ -4020,8 +3933,8 @@ schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip, sqcp->cmnd_timerp->data = k; sqcp->cmnd_timerp->expires = get_jiffies_64() + delta_jiff; add_timer(sqcp->cmnd_timerp); - } else if (scsi_debug_ndelay > 0) { - ktime_t kt = ktime_set(0, scsi_debug_ndelay); + } else if (sdebug_ndelay > 0) { + ktime_t kt = ktime_set(0, sdebug_ndelay); struct sdebug_hrtimer *sd_hp = sqcp->sd_hrtp; if (NULL == sd_hp) { @@ -4049,7 +3962,7 @@ schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip, else tasklet_schedule(sqcp->tletp); } - if ((SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts) && + if ((SDEBUG_OPT_Q_NOISE & sdebug_opts) && (scsi_result == device_qfull_result)) sdev_printk(KERN_INFO, sdp, "%s: num_in_q=%d +1, %s%s\n", __func__, @@ -4069,46 +3982,46 @@ respond_in_thread: /* call back to mid-layer using invocation thread */ as it can when the corresponding attribute in the /sys/bus/pseudo/drivers/scsi_debug directory is changed. */ -module_param_named(add_host, scsi_debug_add_host, int, S_IRUGO | S_IWUSR); -module_param_named(ato, scsi_debug_ato, int, S_IRUGO); -module_param_named(clustering, scsi_debug_clustering, bool, 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(dif, scsi_debug_dif, int, S_IRUGO); -module_param_named(dix, scsi_debug_dix, 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(fake_rw, scsi_debug_fake_rw, int, S_IRUGO | S_IWUSR); -module_param_named(guard, scsi_debug_guard, uint, S_IRUGO); -module_param_named(host_lock, scsi_debug_host_lock, bool, S_IRUGO | S_IWUSR); -module_param_named(lbpu, scsi_debug_lbpu, int, S_IRUGO); -module_param_named(lbpws, scsi_debug_lbpws, int, S_IRUGO); -module_param_named(lbpws10, scsi_debug_lbpws10, int, S_IRUGO); -module_param_named(lbprz, scsi_debug_lbprz, int, S_IRUGO); -module_param_named(lowest_aligned, scsi_debug_lowest_aligned, int, S_IRUGO); -module_param_named(max_luns, scsi_debug_max_luns, int, S_IRUGO | S_IWUSR); -module_param_named(max_queue, scsi_debug_max_queue, int, S_IRUGO | S_IWUSR); -module_param_named(ndelay, scsi_debug_ndelay, int, S_IRUGO | S_IWUSR); -module_param_named(no_lun_0, scsi_debug_no_lun_0, int, S_IRUGO | S_IWUSR); -module_param_named(no_uld, scsi_debug_no_uld, int, S_IRUGO); -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(opt_blks, scsi_debug_opt_blks, int, S_IRUGO); -module_param_named(opts, scsi_debug_opts, int, S_IRUGO | S_IWUSR); -module_param_named(physblk_exp, scsi_debug_physblk_exp, int, S_IRUGO); -module_param_named(ptype, scsi_debug_ptype, int, S_IRUGO | S_IWUSR); -module_param_named(removable, scsi_debug_removable, bool, S_IRUGO | S_IWUSR); -module_param_named(scsi_level, scsi_debug_scsi_level, int, S_IRUGO); -module_param_named(sector_size, scsi_debug_sector_size, int, S_IRUGO); -module_param_named(strict, scsi_debug_strict, bool, S_IRUGO | S_IWUSR); -module_param_named(unmap_alignment, scsi_debug_unmap_alignment, int, S_IRUGO); -module_param_named(unmap_granularity, scsi_debug_unmap_granularity, int, S_IRUGO); -module_param_named(unmap_max_blocks, scsi_debug_unmap_max_blocks, int, S_IRUGO); -module_param_named(unmap_max_desc, scsi_debug_unmap_max_desc, int, S_IRUGO); -module_param_named(virtual_gb, scsi_debug_virtual_gb, int, S_IRUGO | S_IWUSR); -module_param_named(vpd_use_hostno, scsi_debug_vpd_use_hostno, int, +module_param_named(add_host, sdebug_add_host, int, S_IRUGO | S_IWUSR); +module_param_named(ato, sdebug_ato, int, S_IRUGO); +module_param_named(clustering, sdebug_clustering, bool, S_IRUGO | S_IWUSR); +module_param_named(delay, sdebug_delay, int, S_IRUGO | S_IWUSR); +module_param_named(dev_size_mb, sdebug_dev_size_mb, int, S_IRUGO); +module_param_named(dif, sdebug_dif, int, S_IRUGO); +module_param_named(dix, sdebug_dix, int, S_IRUGO); +module_param_named(dsense, sdebug_dsense, int, S_IRUGO | S_IWUSR); +module_param_named(every_nth, sdebug_every_nth, int, S_IRUGO | S_IWUSR); +module_param_named(fake_rw, sdebug_fake_rw, int, S_IRUGO | S_IWUSR); +module_param_named(guard, sdebug_guard, uint, S_IRUGO); +module_param_named(host_lock, sdebug_host_lock, bool, S_IRUGO | S_IWUSR); +module_param_named(lbpu, sdebug_lbpu, int, S_IRUGO); +module_param_named(lbpws, sdebug_lbpws, int, S_IRUGO); +module_param_named(lbpws10, sdebug_lbpws10, int, S_IRUGO); +module_param_named(lbprz, sdebug_lbprz, int, S_IRUGO); +module_param_named(lowest_aligned, sdebug_lowest_aligned, int, S_IRUGO); +module_param_named(max_luns, sdebug_max_luns, int, S_IRUGO | S_IWUSR); +module_param_named(max_queue, sdebug_max_queue, int, S_IRUGO | S_IWUSR); +module_param_named(ndelay, sdebug_ndelay, int, S_IRUGO | S_IWUSR); +module_param_named(no_lun_0, sdebug_no_lun_0, int, S_IRUGO | S_IWUSR); +module_param_named(no_uld, sdebug_no_uld, int, S_IRUGO); +module_param_named(num_parts, sdebug_num_parts, int, S_IRUGO); +module_param_named(num_tgts, sdebug_num_tgts, int, S_IRUGO | S_IWUSR); +module_param_named(opt_blks, sdebug_opt_blks, int, S_IRUGO); +module_param_named(opts, sdebug_opts, int, S_IRUGO | S_IWUSR); +module_param_named(physblk_exp, sdebug_physblk_exp, int, S_IRUGO); +module_param_named(ptype, sdebug_ptype, int, S_IRUGO | S_IWUSR); +module_param_named(removable, sdebug_removable, bool, S_IRUGO | S_IWUSR); +module_param_named(scsi_level, sdebug_scsi_level, int, S_IRUGO); +module_param_named(sector_size, sdebug_sector_size, int, S_IRUGO); +module_param_named(strict, sdebug_strict, bool, S_IRUGO | S_IWUSR); +module_param_named(unmap_alignment, sdebug_unmap_alignment, int, S_IRUGO); +module_param_named(unmap_granularity, sdebug_unmap_granularity, int, S_IRUGO); +module_param_named(unmap_max_blocks, sdebug_unmap_max_blocks, int, S_IRUGO); +module_param_named(unmap_max_desc, sdebug_unmap_max_desc, int, S_IRUGO); +module_param_named(virtual_gb, sdebug_virtual_gb, int, S_IRUGO | S_IWUSR); +module_param_named(vpd_use_hostno, sdebug_vpd_use_hostno, int, S_IRUGO | S_IWUSR); -module_param_named(write_same_length, scsi_debug_write_same_length, int, +module_param_named(write_same_length, sdebug_write_same_length, int, S_IRUGO | S_IWUSR); MODULE_AUTHOR("Eric Youngdale + Douglas Gilbert"); @@ -4162,8 +4075,7 @@ static const char * scsi_debug_info(struct Scsi_Host * shp) { 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); + sdebug_version_date, sdebug_dev_size_mb, sdebug_opts); return sdebug_info; } @@ -4180,8 +4092,10 @@ static int scsi_debug_write_info(struct Scsi_Host *host, char *buffer, int lengt arr[minLen] = '\0'; if (1 != sscanf(arr, "%d", &opts)) return -EINVAL; - scsi_debug_opts = opts; - if (scsi_debug_every_nth != 0) + sdebug_opts = opts; + sdebug_verbose = !!(SDEBUG_OPT_NOISE & opts); + sdebug_any_injecting_opt = !!(SDEBUG_OPT_ALL_INJECTING & opts); + if (sdebug_every_nth != 0) atomic_set(&sdebug_cmnd_count, 0); return length; } @@ -4194,9 +4108,9 @@ static int scsi_debug_show_info(struct seq_file *m, struct Scsi_Host *host) int f, l; char b[32]; - if (scsi_debug_every_nth > 0) + if (sdebug_every_nth > 0) snprintf(b, sizeof(b), " (curr:%d)", - ((SCSI_DEBUG_OPT_RARE_TSF & scsi_debug_opts) ? + ((SDEBUG_OPT_RARE_TSF & sdebug_opts) ? atomic_read(&sdebug_a_tsf) : atomic_read(&sdebug_cmnd_count))); else @@ -4210,18 +4124,18 @@ static int scsi_debug_show_info(struct seq_file *m, struct Scsi_Host *host) "command aborts=%d; RESETs: device=%d, target=%d, bus=%d, " "host=%d\ndix_reads=%d dix_writes=%d dif_errors=%d " "usec_in_jiffy=%lu\n", - SCSI_DEBUG_VERSION, scsi_debug_version_date, - scsi_debug_num_tgts, scsi_debug_dev_size_mb, scsi_debug_opts, - scsi_debug_every_nth, b, scsi_debug_delay, scsi_debug_ndelay, - scsi_debug_max_luns, atomic_read(&sdebug_completions), - scsi_debug_sector_size, sdebug_cylinders_per, sdebug_heads, + SCSI_DEBUG_VERSION, sdebug_version_date, + sdebug_num_tgts, sdebug_dev_size_mb, sdebug_opts, + sdebug_every_nth, b, sdebug_delay, sdebug_ndelay, + sdebug_max_luns, atomic_read(&sdebug_completions), + sdebug_sector_size, sdebug_cylinders_per, sdebug_heads, sdebug_sectors_per, num_aborts, num_dev_resets, num_target_resets, num_bus_resets, num_host_resets, dix_reads, dix_writes, dif_errors, TICK_NSEC / 1000); - f = find_first_bit(queued_in_use_bm, scsi_debug_max_queue); - if (f != scsi_debug_max_queue) { - l = find_last_bit(queued_in_use_bm, scsi_debug_max_queue); + f = find_first_bit(queued_in_use_bm, sdebug_max_queue); + if (f != sdebug_max_queue) { + l = find_last_bit(queued_in_use_bm, sdebug_max_queue); seq_printf(m, " %s BUSY: first,last bits set: %d,%d\n", "queued_in_use_bm", f, l); } @@ -4230,7 +4144,7 @@ static int scsi_debug_show_info(struct seq_file *m, struct Scsi_Host *host) static ssize_t delay_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_delay); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_delay); } /* Returns -EBUSY if delay is being changed and commands are queued */ static ssize_t delay_store(struct device_driver *ddp, const char *buf, @@ -4240,18 +4154,17 @@ static ssize_t delay_store(struct device_driver *ddp, const char *buf, if ((count > 0) && (1 == sscanf(buf, "%d", &delay))) { res = count; - if (scsi_debug_delay != delay) { + if (sdebug_delay != delay) { unsigned long iflags; int k; spin_lock_irqsave(&queued_arr_lock, iflags); - k = find_first_bit(queued_in_use_bm, - scsi_debug_max_queue); - if (k != scsi_debug_max_queue) + k = find_first_bit(queued_in_use_bm, sdebug_max_queue); + if (k != sdebug_max_queue) res = -EBUSY; /* have queued commands */ else { - scsi_debug_delay = delay; - scsi_debug_ndelay = 0; + sdebug_delay = delay; + sdebug_ndelay = 0; } spin_unlock_irqrestore(&queued_arr_lock, iflags); } @@ -4263,10 +4176,10 @@ static DRIVER_ATTR_RW(delay); static ssize_t ndelay_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_ndelay); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_ndelay); } /* Returns -EBUSY if ndelay is being changed and commands are queued */ -/* If > 0 and accepted then scsi_debug_delay is set to DELAY_OVERRIDDEN */ +/* If > 0 and accepted then sdebug_delay is set to DELAY_OVERRIDDEN */ static ssize_t ndelay_store(struct device_driver *ddp, const char *buf, size_t count) { @@ -4276,15 +4189,14 @@ static ssize_t ndelay_store(struct device_driver *ddp, const char *buf, if ((count > 0) && (1 == sscanf(buf, "%d", &ndelay)) && (ndelay >= 0) && (ndelay < 1000000000)) { res = count; - if (scsi_debug_ndelay != ndelay) { + if (sdebug_ndelay != ndelay) { spin_lock_irqsave(&queued_arr_lock, iflags); - k = find_first_bit(queued_in_use_bm, - scsi_debug_max_queue); - if (k != scsi_debug_max_queue) + k = find_first_bit(queued_in_use_bm, sdebug_max_queue); + if (k != sdebug_max_queue) res = -EBUSY; /* have queued commands */ else { - scsi_debug_ndelay = ndelay; - scsi_debug_delay = ndelay ? DELAY_OVERRIDDEN + sdebug_ndelay = ndelay; + sdebug_delay = ndelay ? DELAY_OVERRIDDEN : DEF_DELAY; } spin_unlock_irqrestore(&queued_arr_lock, iflags); @@ -4297,7 +4209,7 @@ static DRIVER_ATTR_RW(ndelay); static ssize_t opts_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "0x%x\n", scsi_debug_opts); + return scnprintf(buf, PAGE_SIZE, "0x%x\n", sdebug_opts); } static ssize_t opts_store(struct device_driver *ddp, const char *buf, @@ -4317,17 +4229,9 @@ static ssize_t opts_store(struct device_driver *ddp, const char *buf, } return -EINVAL; opts_done: - scsi_debug_opts = opts; - if (SCSI_DEBUG_OPT_RECOVERED_ERR & opts) - sdebug_any_injecting_opt = true; - else if (SCSI_DEBUG_OPT_TRANSPORT_ERR & opts) - sdebug_any_injecting_opt = true; - else if (SCSI_DEBUG_OPT_DIF_ERR & opts) - sdebug_any_injecting_opt = true; - else if (SCSI_DEBUG_OPT_DIX_ERR & opts) - sdebug_any_injecting_opt = true; - else if (SCSI_DEBUG_OPT_SHORT_TRANSFER & opts) - sdebug_any_injecting_opt = true; + sdebug_opts = opts; + sdebug_verbose = !!(SDEBUG_OPT_NOISE & opts); + sdebug_any_injecting_opt = !!(SDEBUG_OPT_ALL_INJECTING & opts); atomic_set(&sdebug_cmnd_count, 0); atomic_set(&sdebug_a_tsf, 0); return count; @@ -4336,7 +4240,7 @@ static DRIVER_ATTR_RW(opts); static ssize_t ptype_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_ptype); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_ptype); } static ssize_t ptype_store(struct device_driver *ddp, const char *buf, size_t count) @@ -4344,7 +4248,7 @@ static ssize_t ptype_store(struct device_driver *ddp, const char *buf, int n; if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) { - scsi_debug_ptype = n; + sdebug_ptype = n; return count; } return -EINVAL; @@ -4353,7 +4257,7 @@ static DRIVER_ATTR_RW(ptype); static ssize_t dsense_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_dsense); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_dsense); } static ssize_t dsense_store(struct device_driver *ddp, const char *buf, size_t count) @@ -4361,7 +4265,7 @@ static ssize_t dsense_store(struct device_driver *ddp, const char *buf, int n; if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) { - scsi_debug_dsense = n; + sdebug_dsense = n; return count; } return -EINVAL; @@ -4370,7 +4274,7 @@ static DRIVER_ATTR_RW(dsense); static ssize_t fake_rw_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_fake_rw); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_fake_rw); } static ssize_t fake_rw_store(struct device_driver *ddp, const char *buf, size_t count) @@ -4379,11 +4283,11 @@ static ssize_t fake_rw_store(struct device_driver *ddp, const char *buf, if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) { n = (n > 0); - scsi_debug_fake_rw = (scsi_debug_fake_rw > 0); - if (scsi_debug_fake_rw != n) { + sdebug_fake_rw = (sdebug_fake_rw > 0); + if (sdebug_fake_rw != n) { if ((0 == n) && (NULL == fake_storep)) { unsigned long sz = - (unsigned long)scsi_debug_dev_size_mb * + (unsigned long)sdebug_dev_size_mb * 1048576; fake_storep = vmalloc(sz); @@ -4393,7 +4297,7 @@ static ssize_t fake_rw_store(struct device_driver *ddp, const char *buf, } memset(fake_storep, 0, sz); } - scsi_debug_fake_rw = n; + sdebug_fake_rw = n; } return count; } @@ -4403,7 +4307,7 @@ static DRIVER_ATTR_RW(fake_rw); static ssize_t no_lun_0_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_no_lun_0); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_no_lun_0); } static ssize_t no_lun_0_store(struct device_driver *ddp, const char *buf, size_t count) @@ -4411,7 +4315,7 @@ static ssize_t no_lun_0_store(struct device_driver *ddp, const char *buf, int n; if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) { - scsi_debug_no_lun_0 = n; + sdebug_no_lun_0 = n; return count; } return -EINVAL; @@ -4420,7 +4324,7 @@ static DRIVER_ATTR_RW(no_lun_0); static ssize_t num_tgts_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_num_tgts); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_num_tgts); } static ssize_t num_tgts_store(struct device_driver *ddp, const char *buf, size_t count) @@ -4428,7 +4332,7 @@ static ssize_t num_tgts_store(struct device_driver *ddp, const char *buf, int n; if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) { - scsi_debug_num_tgts = n; + sdebug_num_tgts = n; sdebug_max_tgts_luns(); return count; } @@ -4438,19 +4342,19 @@ static DRIVER_ATTR_RW(num_tgts); static ssize_t dev_size_mb_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_dev_size_mb); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_dev_size_mb); } static DRIVER_ATTR_RO(dev_size_mb); static ssize_t num_parts_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_num_parts); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_num_parts); } static DRIVER_ATTR_RO(num_parts); static ssize_t every_nth_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_every_nth); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_every_nth); } static ssize_t every_nth_store(struct device_driver *ddp, const char *buf, size_t count) @@ -4458,7 +4362,7 @@ static ssize_t every_nth_store(struct device_driver *ddp, const char *buf, int nth; if ((count > 0) && (1 == sscanf(buf, "%d", &nth))) { - scsi_debug_every_nth = nth; + sdebug_every_nth = nth; atomic_set(&sdebug_cmnd_count, 0); return count; } @@ -4468,7 +4372,7 @@ static DRIVER_ATTR_RW(every_nth); static ssize_t max_luns_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_max_luns); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_max_luns); } static ssize_t max_luns_store(struct device_driver *ddp, const char *buf, size_t count) @@ -4477,10 +4381,10 @@ static ssize_t max_luns_store(struct device_driver *ddp, const char *buf, bool changed; if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) { - changed = (scsi_debug_max_luns != n); - scsi_debug_max_luns = n; + changed = (sdebug_max_luns != n); + sdebug_max_luns = n; sdebug_max_tgts_luns(); - if (changed && (scsi_debug_scsi_level >= 5)) { /* >= SPC-3 */ + if (changed && (sdebug_scsi_level >= 5)) { /* >= SPC-3 */ struct sdebug_host_info *sdhp; struct sdebug_dev_info *dp; @@ -4503,7 +4407,7 @@ static DRIVER_ATTR_RW(max_luns); static ssize_t max_queue_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_max_queue); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_max_queue); } /* N.B. max_queue can be changed while there are queued commands. In flight * commands beyond the new max_queue will be completed. */ @@ -4517,7 +4421,7 @@ static ssize_t max_queue_store(struct device_driver *ddp, const char *buf, (n <= SCSI_DEBUG_CANQUEUE)) { spin_lock_irqsave(&queued_arr_lock, iflags); k = find_last_bit(queued_in_use_bm, SCSI_DEBUG_CANQUEUE); - scsi_debug_max_queue = n; + sdebug_max_queue = n; if (SCSI_DEBUG_CANQUEUE == k) atomic_set(&retired_max_queue, 0); else if (k >= n) @@ -4533,19 +4437,19 @@ static DRIVER_ATTR_RW(max_queue); static ssize_t no_uld_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_no_uld); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_no_uld); } static DRIVER_ATTR_RO(no_uld); static ssize_t scsi_level_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_scsi_level); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_scsi_level); } static DRIVER_ATTR_RO(scsi_level); static ssize_t virtual_gb_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_virtual_gb); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_virtual_gb); } static ssize_t virtual_gb_store(struct device_driver *ddp, const char *buf, size_t count) @@ -4554,8 +4458,8 @@ static ssize_t virtual_gb_store(struct device_driver *ddp, const char *buf, bool changed; if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) { - changed = (scsi_debug_virtual_gb != n); - scsi_debug_virtual_gb = n; + changed = (sdebug_virtual_gb != n); + sdebug_virtual_gb = n; sdebug_capacity = get_sdebug_capacity(); if (changed) { struct sdebug_host_info *sdhp; @@ -4580,7 +4484,7 @@ static DRIVER_ATTR_RW(virtual_gb); static ssize_t add_host_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_add_host); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_add_host); } static ssize_t add_host_store(struct device_driver *ddp, const char *buf, @@ -4605,7 +4509,7 @@ static DRIVER_ATTR_RW(add_host); static ssize_t vpd_use_hostno_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_vpd_use_hostno); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_vpd_use_hostno); } static ssize_t vpd_use_hostno_store(struct device_driver *ddp, const char *buf, size_t count) @@ -4613,7 +4517,7 @@ static ssize_t vpd_use_hostno_store(struct device_driver *ddp, const char *buf, int n; if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) { - scsi_debug_vpd_use_hostno = n; + sdebug_vpd_use_hostno = n; return count; } return -EINVAL; @@ -4622,31 +4526,31 @@ static DRIVER_ATTR_RW(vpd_use_hostno); static ssize_t sector_size_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%u\n", scsi_debug_sector_size); + return scnprintf(buf, PAGE_SIZE, "%u\n", sdebug_sector_size); } static DRIVER_ATTR_RO(sector_size); static ssize_t dix_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_dix); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_dix); } static DRIVER_ATTR_RO(dix); static ssize_t dif_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_dif); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_dif); } static DRIVER_ATTR_RO(dif); static ssize_t guard_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%u\n", scsi_debug_guard); + return scnprintf(buf, PAGE_SIZE, "%u\n", sdebug_guard); } static DRIVER_ATTR_RO(guard); static ssize_t ato_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_ato); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_ato); } static DRIVER_ATTR_RO(ato); @@ -4669,7 +4573,7 @@ static DRIVER_ATTR_RO(map); static ssize_t removable_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_removable ? 1 : 0); + return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_removable ? 1 : 0); } static ssize_t removable_store(struct device_driver *ddp, const char *buf, size_t count) @@ -4677,7 +4581,7 @@ static ssize_t removable_store(struct device_driver *ddp, const char *buf, int n; if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) { - scsi_debug_removable = (n > 0); + sdebug_removable = (n > 0); return count; } return -EINVAL; @@ -4686,7 +4590,7 @@ static DRIVER_ATTR_RW(removable); static ssize_t host_lock_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", !!scsi_debug_host_lock); + return scnprintf(buf, PAGE_SIZE, "%d\n", !!sdebug_host_lock); } /* Returns -EBUSY if host_lock is being changed and commands are queued */ static ssize_t host_lock_store(struct device_driver *ddp, const char *buf, @@ -4698,17 +4602,17 @@ static ssize_t host_lock_store(struct device_driver *ddp, const char *buf, bool new_host_lock = (n > 0); res = count; - if (new_host_lock != scsi_debug_host_lock) { + if (new_host_lock != sdebug_host_lock) { unsigned long iflags; int k; spin_lock_irqsave(&queued_arr_lock, iflags); k = find_first_bit(queued_in_use_bm, - scsi_debug_max_queue); - if (k != scsi_debug_max_queue) + sdebug_max_queue); + if (k != sdebug_max_queue) res = -EBUSY; /* have queued commands */ else - scsi_debug_host_lock = new_host_lock; + sdebug_host_lock = new_host_lock; spin_unlock_irqrestore(&queued_arr_lock, iflags); } return res; @@ -4719,7 +4623,7 @@ static DRIVER_ATTR_RW(host_lock); static ssize_t strict_show(struct device_driver *ddp, char *buf) { - return scnprintf(buf, PAGE_SIZE, "%d\n", !!scsi_debug_strict); + return scnprintf(buf, PAGE_SIZE, "%d\n", !!sdebug_strict); } static ssize_t strict_store(struct device_driver *ddp, const char *buf, size_t count) @@ -4727,7 +4631,7 @@ static ssize_t strict_store(struct device_driver *ddp, const char *buf, int n; if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) { - scsi_debug_strict = (n > 0); + sdebug_strict = (n > 0); return count; } return -EINVAL; @@ -4787,24 +4691,24 @@ static int __init scsi_debug_init(void) atomic_set(&sdebug_completions, 0); atomic_set(&retired_max_queue, 0); - if (scsi_debug_ndelay >= 1000000000) { + if (sdebug_ndelay >= 1000 * 1000 * 1000) { pr_warn("ndelay must be less than 1 second, ignored\n"); - scsi_debug_ndelay = 0; - } else if (scsi_debug_ndelay > 0) - scsi_debug_delay = DELAY_OVERRIDDEN; + sdebug_ndelay = 0; + } else if (sdebug_ndelay > 0) + sdebug_delay = DELAY_OVERRIDDEN; - switch (scsi_debug_sector_size) { + switch (sdebug_sector_size) { case 512: case 1024: case 2048: case 4096: break; default: - pr_err("invalid sector_size %d\n", scsi_debug_sector_size); + pr_err("invalid sector_size %d\n", sdebug_sector_size); return -EINVAL; } - switch (scsi_debug_dif) { + switch (sdebug_dif) { case SD_DIF_TYPE0_PROTECTION: case SD_DIF_TYPE1_PROTECTION: @@ -4817,39 +4721,38 @@ static int __init scsi_debug_init(void) return -EINVAL; } - if (scsi_debug_guard > 1) { + if (sdebug_guard > 1) { pr_err("guard must be 0 or 1\n"); return -EINVAL; } - if (scsi_debug_ato > 1) { + if (sdebug_ato > 1) { pr_err("ato must be 0 or 1\n"); return -EINVAL; } - if (scsi_debug_physblk_exp > 15) { - pr_err("invalid physblk_exp %u\n", scsi_debug_physblk_exp); + if (sdebug_physblk_exp > 15) { + pr_err("invalid physblk_exp %u\n", sdebug_physblk_exp); return -EINVAL; } - if (scsi_debug_lowest_aligned > 0x3fff) { - pr_err("lowest_aligned too big: %u\n", - scsi_debug_lowest_aligned); + if (sdebug_lowest_aligned > 0x3fff) { + pr_err("lowest_aligned too big: %u\n", sdebug_lowest_aligned); return -EINVAL; } - if (scsi_debug_dev_size_mb < 1) - scsi_debug_dev_size_mb = 1; /* force minimum 1 MB ramdisk */ - sz = (unsigned long)scsi_debug_dev_size_mb * 1048576; - sdebug_store_sectors = sz / scsi_debug_sector_size; + if (sdebug_dev_size_mb < 1) + sdebug_dev_size_mb = 1; /* force minimum 1 MB ramdisk */ + sz = (unsigned long)sdebug_dev_size_mb * 1048576; + sdebug_store_sectors = sz / sdebug_sector_size; sdebug_capacity = get_sdebug_capacity(); /* 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 >= 256) + if (sdebug_dev_size_mb >= 256) sdebug_heads = 64; - else if (scsi_debug_dev_size_mb >= 16) + else if (sdebug_dev_size_mb >= 16) sdebug_heads = 32; sdebug_cylinders_per = (unsigned long)sdebug_capacity / (sdebug_sectors_per * sdebug_heads); @@ -4861,18 +4764,18 @@ static int __init scsi_debug_init(void) (sdebug_sectors_per * sdebug_heads); } - if (0 == scsi_debug_fake_rw) { + if (0 == sdebug_fake_rw) { fake_storep = vmalloc(sz); if (NULL == fake_storep) { pr_err("out of memory, 1\n"); return -ENOMEM; } memset(fake_storep, 0, sz); - if (scsi_debug_num_parts > 0) + if (sdebug_num_parts > 0) sdebug_build_parts(fake_storep, sz); } - if (scsi_debug_dix) { + if (sdebug_dix) { int dif_size; dif_size = sdebug_store_sectors * sizeof(struct sd_dif_tuple); @@ -4891,18 +4794,18 @@ static int __init scsi_debug_init(void) /* Logical Block Provisioning */ if (scsi_debug_lbp()) { - scsi_debug_unmap_max_blocks = - clamp(scsi_debug_unmap_max_blocks, 0U, 0xffffffffU); + sdebug_unmap_max_blocks = + clamp(sdebug_unmap_max_blocks, 0U, 0xffffffffU); - scsi_debug_unmap_max_desc = - clamp(scsi_debug_unmap_max_desc, 0U, 256U); + sdebug_unmap_max_desc = + clamp(sdebug_unmap_max_desc, 0U, 256U); - scsi_debug_unmap_granularity = - clamp(scsi_debug_unmap_granularity, 1U, 0xffffffffU); + sdebug_unmap_granularity = + clamp(sdebug_unmap_granularity, 1U, 0xffffffffU); - if (scsi_debug_unmap_alignment && - scsi_debug_unmap_granularity <= - scsi_debug_unmap_alignment) { + if (sdebug_unmap_alignment && + sdebug_unmap_granularity <= + sdebug_unmap_alignment) { pr_err("ERR: unmap_granularity <= unmap_alignment\n"); return -EINVAL; } @@ -4921,7 +4824,7 @@ static int __init scsi_debug_init(void) bitmap_zero(map_storep, map_size); /* Map first 1KB for partition table */ - if (scsi_debug_num_parts) + if (sdebug_num_parts) map_region(0, 2); } @@ -4942,8 +4845,8 @@ static int __init scsi_debug_init(void) goto bus_unreg; } - host_to_add = scsi_debug_add_host; - scsi_debug_add_host = 0; + host_to_add = sdebug_add_host; + sdebug_add_host = 0; for (k = 0; k < host_to_add; k++) { if (sdebug_add_adapter()) { @@ -4952,8 +4855,8 @@ static int __init scsi_debug_init(void) } } - if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) - pr_info("built %d host(s)\n", scsi_debug_add_host); + if (sdebug_verbose) + pr_info("built %d host(s)\n", sdebug_add_host); return 0; @@ -4971,7 +4874,7 @@ free_vm: static void __exit scsi_debug_exit(void) { - int k = scsi_debug_add_host; + int k = sdebug_add_host; stop_all_queued(); free_all_queued(); @@ -5011,7 +4914,7 @@ static int sdebug_add_adapter(void) INIT_LIST_HEAD(&sdbg_host->dev_info_list); - devs_per_host = scsi_debug_num_tgts * scsi_debug_max_luns; + devs_per_host = sdebug_num_tgts * sdebug_max_luns; for (k = 0; k < devs_per_host; k++) { sdbg_devinfo = sdebug_device_create(sdbg_host, GFP_KERNEL); if (!sdbg_devinfo) { @@ -5028,14 +4931,14 @@ static int sdebug_add_adapter(void) sdbg_host->dev.bus = &pseudo_lld_bus; sdbg_host->dev.parent = pseudo_primary; sdbg_host->dev.release = &sdebug_release_adapter; - dev_set_name(&sdbg_host->dev, "adapter%d", scsi_debug_add_host); + dev_set_name(&sdbg_host->dev, "adapter%d", sdebug_add_host); error = device_register(&sdbg_host->dev); if (error) goto clean; - ++scsi_debug_add_host; + ++sdebug_add_host; return error; clean: @@ -5064,8 +4967,8 @@ static void sdebug_remove_adapter(void) if (!sdbg_host) return; - device_unregister(&sdbg_host->dev); - --scsi_debug_add_host; + device_unregister(&sdbg_host->dev); + --sdebug_add_host; } static int @@ -5091,7 +4994,7 @@ sdebug_change_qdepth(struct scsi_device *sdev, int qdepth) qdepth = SCSI_DEBUG_CANQUEUE + 10; scsi_change_queue_depth(sdev, qdepth); - if (SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts) { + if (SDEBUG_OPT_Q_NOISE & sdebug_opts) { sdev_printk(KERN_INFO, sdev, "%s: qdepth=%d, num_in_q=%d\n", __func__, qdepth, num_in_q); @@ -5106,28 +5009,25 @@ check_inject(struct scsi_cmnd *scp) memset(ep, 0, sizeof(struct sdebug_scmd_extra_t)); - if (atomic_inc_return(&sdebug_cmnd_count) >= - abs(scsi_debug_every_nth)) { + if (atomic_inc_return(&sdebug_cmnd_count) >= abs(sdebug_every_nth)) { atomic_set(&sdebug_cmnd_count, 0); - if (scsi_debug_every_nth < -1) - scsi_debug_every_nth = -1; - if (SCSI_DEBUG_OPT_TIMEOUT & scsi_debug_opts) + if (sdebug_every_nth < -1) + sdebug_every_nth = -1; + if (SDEBUG_OPT_TIMEOUT & sdebug_opts) return 1; /* ignore command causing timeout */ - else if (SCSI_DEBUG_OPT_MAC_TIMEOUT & scsi_debug_opts && + else if (SDEBUG_OPT_MAC_TIMEOUT & sdebug_opts && scsi_medium_access_command(scp)) return 1; /* time out reads and writes */ if (sdebug_any_injecting_opt) { - int opts = scsi_debug_opts; - - if (SCSI_DEBUG_OPT_RECOVERED_ERR & opts) + if (SDEBUG_OPT_RECOVERED_ERR & sdebug_opts) ep->inj_recovered = true; - else if (SCSI_DEBUG_OPT_TRANSPORT_ERR & opts) + if (SDEBUG_OPT_TRANSPORT_ERR & sdebug_opts) ep->inj_transport = true; - else if (SCSI_DEBUG_OPT_DIF_ERR & opts) + if (SDEBUG_OPT_DIF_ERR & sdebug_opts) ep->inj_dif = true; - else if (SCSI_DEBUG_OPT_DIX_ERR & opts) + if (SDEBUG_OPT_DIX_ERR & sdebug_opts) ep->inj_dix = true; - else if (SCSI_DEBUG_OPT_SHORT_TRANSFER & opts) + if (SDEBUG_OPT_SHORT_TRANSFER & sdebug_opts) ep->inj_short = true; } } @@ -5146,15 +5046,13 @@ scsi_debug_queuecommand(struct scsi_cmnd *scp) int (*r_pfp)(struct scsi_cmnd *, struct sdebug_dev_info *); int k, na; int errsts = 0; - int errsts_no_connect = DID_NO_CONNECT << 16; u32 flags; u16 sa; u8 opcode = cmd[0]; bool has_wlun_rl; - bool debug = !!(SCSI_DEBUG_OPT_NOISE & scsi_debug_opts); scsi_set_resid(scp, 0); - if (debug && !(SCSI_DEBUG_OPT_NO_CDB_NOISE & scsi_debug_opts)) { + if (sdebug_verbose && !(SDEBUG_OPT_NO_CDB_NOISE & sdebug_opts)) { char b[120]; int n, len, sb; @@ -5170,8 +5068,8 @@ scsi_debug_queuecommand(struct scsi_cmnd *scp) sdev_printk(KERN_INFO, sdp, "%s: cmd %s\n", my_name, b); } has_wlun_rl = (sdp->lun == SCSI_W_LUN_REPORT_LUNS); - if ((sdp->lun >= scsi_debug_max_luns) && !has_wlun_rl) - return schedule_resp(scp, NULL, errsts_no_connect, 0); + if ((sdp->lun >= sdebug_max_luns) && !has_wlun_rl) + return schedule_resp(scp, NULL, DID_NO_CONNECT << 16, 0); sdeb_i = opcode_ind_arr[opcode]; /* fully mapped */ oip = &opcode_info_arr[sdeb_i]; /* safe if table consistent */ @@ -5179,7 +5077,8 @@ scsi_debug_queuecommand(struct scsi_cmnd *scp) if (!devip) { devip = devInfoReg(sdp); if (NULL == devip) - return schedule_resp(scp, NULL, errsts_no_connect, 0); + return schedule_resp(scp, NULL, DID_NO_CONNECT << 16, + 0); } na = oip->num_attached; r_pfp = oip->pfp; @@ -5216,13 +5115,13 @@ scsi_debug_queuecommand(struct scsi_cmnd *scp) goto check_cond; } if (has_wlun_rl && !(F_RL_WLUN_OK & flags)) { - if (debug) - sdev_printk(KERN_INFO, sdp, "scsi_debug: Opcode: " - "0x%x not supported for wlun\n", opcode); + if (sdebug_verbose) + sdev_printk(KERN_INFO, sdp, "%s: Opcode 0x%x not%s\n", + my_name, opcode, " supported for wlun"); mk_sense_invalid_opcode(scp); goto check_cond; } - if (scsi_debug_strict) { /* check cdb against mask */ + if (sdebug_strict) { /* check cdb against mask */ u8 rem; int j; @@ -5246,16 +5145,16 @@ scsi_debug_queuecommand(struct scsi_cmnd *scp) } if ((F_M_ACCESS & flags) && devip->stopped) { mk_sense_buffer(scp, NOT_READY, LOGICAL_UNIT_NOT_READY, 0x2); - if (debug) + if (sdebug_verbose) sdev_printk(KERN_INFO, sdp, "%s reports: Not ready: " "%s\n", my_name, "initializing command " "required"); errsts = check_condition_result; goto fini; } - if (scsi_debug_fake_rw && (F_FAKE_RW & flags)) + if (sdebug_fake_rw && (F_FAKE_RW & flags)) goto fini; - if (scsi_debug_every_nth) { + if (sdebug_every_nth) { if (check_inject(scp)) return 0; /* ignore command: make trouble */ } @@ -5266,7 +5165,7 @@ scsi_debug_queuecommand(struct scsi_cmnd *scp) fini: return schedule_resp(scp, devip, errsts, - ((F_DELAY_OVERR & flags) ? 0 : scsi_debug_delay)); + ((F_DELAY_OVERR & flags) ? 0 : sdebug_delay)); check_cond: return schedule_resp(scp, devip, check_condition_result, 0); } @@ -5274,7 +5173,7 @@ check_cond: static int sdebug_queuecommand_lock_or_not(struct Scsi_Host *shost, struct scsi_cmnd *cmd) { - if (scsi_debug_host_lock) { + if (sdebug_host_lock) { unsigned long iflags; int rc; @@ -5317,15 +5216,14 @@ static struct scsi_host_template sdebug_driver_template = { static int sdebug_driver_probe(struct device * dev) { int error = 0; - int opts; struct sdebug_host_info *sdbg_host; struct Scsi_Host *hpnt; int host_prot; sdbg_host = to_sdebug_host(dev); - sdebug_driver_template.can_queue = scsi_debug_max_queue; - if (scsi_debug_clustering) + sdebug_driver_template.can_queue = sdebug_max_queue; + if (sdebug_clustering) sdebug_driver_template.use_clustering = ENABLE_CLUSTERING; hpnt = scsi_host_alloc(&sdebug_driver_template, sizeof(sdbg_host)); if (NULL == hpnt) { @@ -5336,37 +5234,37 @@ static int sdebug_driver_probe(struct device * dev) sdbg_host->shost = hpnt; *((struct sdebug_host_info **)hpnt->hostdata) = sdbg_host; - if ((hpnt->this_id >= 0) && (scsi_debug_num_tgts > hpnt->this_id)) - hpnt->max_id = scsi_debug_num_tgts + 1; + if ((hpnt->this_id >= 0) && (sdebug_num_tgts > hpnt->this_id)) + hpnt->max_id = sdebug_num_tgts + 1; else - hpnt->max_id = scsi_debug_num_tgts; - /* = scsi_debug_max_luns; */ + hpnt->max_id = sdebug_num_tgts; + /* = sdebug_max_luns; */ hpnt->max_lun = SCSI_W_LUN_REPORT_LUNS + 1; host_prot = 0; - switch (scsi_debug_dif) { + switch (sdebug_dif) { case SD_DIF_TYPE1_PROTECTION: host_prot = SHOST_DIF_TYPE1_PROTECTION; - if (scsi_debug_dix) + if (sdebug_dix) host_prot |= SHOST_DIX_TYPE1_PROTECTION; break; case SD_DIF_TYPE2_PROTECTION: host_prot = SHOST_DIF_TYPE2_PROTECTION; - if (scsi_debug_dix) + if (sdebug_dix) host_prot |= SHOST_DIX_TYPE2_PROTECTION; break; case SD_DIF_TYPE3_PROTECTION: host_prot = SHOST_DIF_TYPE3_PROTECTION; - if (scsi_debug_dix) + if (sdebug_dix) host_prot |= SHOST_DIX_TYPE3_PROTECTION; break; default: - if (scsi_debug_dix) + if (sdebug_dix) host_prot |= SHOST_DIX_TYPE0_PROTECTION; break; } @@ -5382,23 +5280,13 @@ static int sdebug_driver_probe(struct device * dev) (host_prot & SHOST_DIX_TYPE2_PROTECTION) ? " DIX2" : "", (host_prot & SHOST_DIX_TYPE3_PROTECTION) ? " DIX3" : ""); - if (scsi_debug_guard == 1) + if (sdebug_guard == 1) scsi_host_set_guard(hpnt, SHOST_DIX_GUARD_IP); else scsi_host_set_guard(hpnt, SHOST_DIX_GUARD_CRC); - opts = scsi_debug_opts; - if (SCSI_DEBUG_OPT_RECOVERED_ERR & opts) - sdebug_any_injecting_opt = true; - else if (SCSI_DEBUG_OPT_TRANSPORT_ERR & opts) - sdebug_any_injecting_opt = true; - else if (SCSI_DEBUG_OPT_DIF_ERR & opts) - sdebug_any_injecting_opt = true; - else if (SCSI_DEBUG_OPT_DIX_ERR & opts) - sdebug_any_injecting_opt = true; - else if (SCSI_DEBUG_OPT_SHORT_TRANSFER & opts) - sdebug_any_injecting_opt = true; - + sdebug_verbose = !!(SDEBUG_OPT_NOISE & sdebug_opts); + sdebug_any_injecting_opt = !!(SDEBUG_OPT_ALL_INJECTING & sdebug_opts); error = scsi_add_host(hpnt, &sdbg_host->dev); if (error) { pr_err("scsi_add_host failed\n"); |
