From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E817C433F5 for ; Fri, 8 Apr 2022 04:06:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234267AbiDHEI4 (ORCPT ); Fri, 8 Apr 2022 00:08:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39474 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234261AbiDHEIk (ORCPT ); Fri, 8 Apr 2022 00:08:40 -0400 Received: from smtp.infotech.no (smtp.infotech.no [82.134.31.41]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 65E6D12C9CB for ; Thu, 7 Apr 2022 21:06:26 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by smtp.infotech.no (Postfix) with ESMTP id 684342041CE; Fri, 8 Apr 2022 05:57:07 +0200 (CEST) X-Virus-Scanned: by amavisd-new-2.6.6 (20110518) (Debian) at infotech.no Received: from smtp.infotech.no ([127.0.0.1]) by localhost (smtp.infotech.no [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SWOpHUBdghAp; Fri, 8 Apr 2022 05:57:03 +0200 (CEST) Received: from xtwo70.bingwo.ca (host-45-78-195-155.dyn.295.ca [45.78.195.155]) by smtp.infotech.no (Postfix) with ESMTPA id 04CD92041CF; Fri, 8 Apr 2022 05:56:59 +0200 (CEST) From: Douglas Gilbert To: linux-scsi@vger.kernel.org Cc: martin.petersen@oracle.com, jejb@linux.vnet.ibm.com, hare@suse.de, bvanassche@acm.org, hch@lst.de Subject: [PATCH 5/6] scsi_debug: reinstate cmd_len > 32 Date: Thu, 7 Apr 2022 23:56:50 -0400 Message-Id: <20220408035651.6472-6-dgilbert@interlog.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220408035651.6472-1-dgilbert@interlog.com> References: <20220408035651.6472-1-dgilbert@interlog.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Example of converting a SCSI low level driver (LLD) to handle cmd_len > 32 bytes. When (opts & 1) print out all cdb_s up to 64 bytes in length (was up to 32 bytes). For testing using sg_raw in user space via a sg device to send long cdb_s (i.e. > 32 bytes). Use 'cdb' when referring to a SCSI CDB as 'cmd' gets confused with other things such as a pointer to a scsi_cmnd object. Signed-off-by: Douglas Gilbert --- drivers/scsi/scsi_debug.c | 410 ++++++++++++++++++++------------------ 1 file changed, 213 insertions(+), 197 deletions(-) diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index c607755cce00..d61d039836a0 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -246,7 +246,7 @@ static const char *sdebug_version_date = "20210520"; #define SDEBUG_MAX_PARTS 4 -#define SDEBUG_MAX_CMD_LEN 32 +#define SDEBUG_MAX_CMD_LEN 64 #define SDEB_XA_NOT_IN_USE XA_MARK_1 @@ -1573,12 +1573,12 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) { unsigned char pq_pdt; unsigned char *arr; - unsigned char *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); u32 alloc_len, n; int ret; bool have_wlun, is_disk, is_zbc, is_disk_zbc; - alloc_len = get_unaligned_be16(cmd + 3); + alloc_len = get_unaligned_be16(cdb + 3); arr = kzalloc(SDEBUG_MAX_INQ_ARR_SZ, GFP_ATOMIC); if (! arr) return DID_REQUEUE << 16; @@ -1593,11 +1593,11 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) else pq_pdt = (sdebug_ptype & 0x1f); arr[0] = pq_pdt; - if (0x2 & cmd[1]) { /* CMDDT bit set */ + if (0x2 & cdb[1]) { /* CMDDT bit set */ mk_sense_invalid_fld(scp, SDEB_IN_CDB, 1, 1); kfree(arr); return check_condition_result; - } else if (0x1 & cmd[1]) { /* EVPD bit set */ + } else if (0x1 & cdb[1]) { /* EVPD bit set */ int lu_id_num, port_group_id, target_dev_id; u32 len; char lu_id_str[6]; @@ -1612,8 +1612,8 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) target_dev_id = ((host_no + 1) * 2000) + (devip->target * 1000) - 3; len = scnprintf(lu_id_str, 6, "%d", lu_id_num); - if (0 == cmd[2]) { /* supported vital product data pages */ - arr[1] = cmd[2]; /*sanity */ + if (0 == cdb[2]) { /* supported vital product data pages */ + arr[1] = cdb[2]; /*sanity */ n = 4; arr[n++] = 0x0; /* this page */ arr[n++] = 0x80; /* unit serial number */ @@ -1633,24 +1633,24 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) arr[n++] = 0xb6; /* ZB dev. char. */ } arr[3] = n - 4; /* number of supported VPD pages */ - } else if (0x80 == cmd[2]) { /* unit serial number */ - arr[1] = cmd[2]; /*sanity */ + } else if (0x80 == cdb[2]) { /* unit serial number */ + arr[1] = cdb[2]; /*sanity */ arr[3] = len; memcpy(&arr[4], lu_id_str, len); - } else if (0x83 == cmd[2]) { /* device identification */ - arr[1] = cmd[2]; /*sanity */ + } else if (0x83 == cdb[2]) { /* device identification */ + arr[1] = cdb[2]; /*sanity */ arr[3] = inquiry_vpd_83(&arr[4], port_group_id, target_dev_id, lu_id_num, lu_id_str, len, &devip->lu_name); - } else if (0x84 == cmd[2]) { /* Software interface ident. */ - arr[1] = cmd[2]; /*sanity */ + } else if (0x84 == cdb[2]) { /* Software interface ident. */ + arr[1] = cdb[2]; /*sanity */ arr[3] = inquiry_vpd_84(&arr[4]); - } else if (0x85 == cmd[2]) { /* Management network addresses */ - arr[1] = cmd[2]; /*sanity */ + } else if (0x85 == cdb[2]) { /* Management network addresses */ + arr[1] = cdb[2]; /*sanity */ arr[3] = inquiry_vpd_85(&arr[4]); - } else if (0x86 == cmd[2]) { /* extended inquiry */ - arr[1] = cmd[2]; /*sanity */ + } else if (0x86 == cdb[2]) { /* extended inquiry */ + arr[1] = cdb[2]; /*sanity */ arr[3] = 0x3c; /* number of following entries */ if (sdebug_dif == T10_PI_TYPE3_PROTECTION) arr[4] = 0x4; /* SPT: GRD_CHK:1 */ @@ -1659,31 +1659,31 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) else arr[4] = 0x0; /* no protection stuff */ arr[5] = 0x7; /* head of q, ordered + simple q's */ - } else if (0x87 == cmd[2]) { /* mode page policy */ - arr[1] = cmd[2]; /*sanity */ + } else if (0x87 == cdb[2]) { /* mode page policy */ + arr[1] = cdb[2]; /*sanity */ arr[3] = 0x8; /* number of following entries */ arr[4] = 0x2; /* disconnect-reconnect mp */ arr[6] = 0x80; /* mlus, shared */ arr[8] = 0x18; /* protocol specific lu */ arr[10] = 0x82; /* mlus, per initiator port */ - } else if (0x88 == cmd[2]) { /* SCSI Ports */ - arr[1] = cmd[2]; /*sanity */ + } else if (0x88 == cdb[2]) { /* SCSI Ports */ + arr[1] = cdb[2]; /*sanity */ arr[3] = inquiry_vpd_88(&arr[4], target_dev_id); - } else if (is_disk_zbc && 0x89 == cmd[2]) { /* ATA info */ - arr[1] = cmd[2]; /*sanity */ + } else if (is_disk_zbc && 0x89 == cdb[2]) { /* ATA info */ + arr[1] = cdb[2]; /*sanity */ n = inquiry_vpd_89(&arr[4]); put_unaligned_be16(n, arr + 2); - } else if (is_disk_zbc && 0xb0 == cmd[2]) { /* Block limits */ - arr[1] = cmd[2]; /*sanity */ + } else if (is_disk_zbc && 0xb0 == cdb[2]) { /* Block limits */ + arr[1] = cdb[2]; /*sanity */ arr[3] = inquiry_vpd_b0(&arr[4]); - } else if (is_disk_zbc && 0xb1 == cmd[2]) { /* Block char. */ - arr[1] = cmd[2]; /*sanity */ + } else if (is_disk_zbc && 0xb1 == cdb[2]) { /* Block char. */ + arr[1] = cdb[2]; /*sanity */ arr[3] = inquiry_vpd_b1(devip, &arr[4]); - } else if (is_disk && 0xb2 == cmd[2]) { /* LB Prov. */ - arr[1] = cmd[2]; /*sanity */ + } else if (is_disk && 0xb2 == cdb[2]) { /* LB Prov. */ + arr[1] = cdb[2]; /*sanity */ arr[3] = inquiry_vpd_b2(&arr[4]); - } else if (is_zbc && cmd[2] == 0xb6) { /* ZB dev. charact. */ - arr[1] = cmd[2]; /*sanity */ + } else if (is_zbc && cdb[2] == 0xb6) { /* ZB dev. charact. */ + arr[1] = cdb[2]; /*sanity */ arr[3] = inquiry_vpd_b6(devip, &arr[4]); } else { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 2, -1); @@ -1740,10 +1740,10 @@ static unsigned char iec_m_pg[] = {0x1c, 0xa, 0x08, 0, 0, 0, 0, 0, static int resp_requests(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) { - unsigned char *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); unsigned char arr[SCSI_SENSE_BUFFERSIZE]; /* assume >= 18 bytes */ - bool dsense = !!(cmd[1] & 1); - u32 alloc_len = cmd[4]; + bool dsense = !!(cdb[1] & 1); + u32 alloc_len = cdb[4]; u32 len = 18; int stopped_state = atomic_read(&devip->stopped); @@ -1793,16 +1793,16 @@ static int resp_requests(struct scsi_cmnd *scp, static int resp_start_stop(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) { - unsigned char *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); int power_cond, want_stop, stopped_state; bool changing; - power_cond = (cmd[4] & 0xf0) >> 4; + power_cond = (cdb[4] & 0xf0) >> 4; if (power_cond) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 4, 7); return check_condition_result; } - want_stop = !(cmd[4] & 1); + want_stop = !(cdb[4] & 1); stopped_state = atomic_read(&devip->stopped); if (stopped_state == 2) { ktime_t now_ts = ktime_get_boottime(); @@ -1828,7 +1828,7 @@ static int resp_start_stop(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) changing = (stopped_state != want_stop); if (changing) atomic_xchg(&devip->stopped, want_stop); - if (!changing || (cmd[1] & 0x1)) /* state unchanged or IMMED bit set in cdb */ + if (!changing || (cdb[1] & 0x1)) /* state unchanged or IMMED bit set in cdb */ return SDEG_RES_IMMED_MASK; else return 0; @@ -1868,11 +1868,11 @@ static int resp_readcap(struct scsi_cmnd *scp, static int resp_readcap16(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) { - unsigned char *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); unsigned char arr[SDEBUG_READCAP16_ARR_SZ]; u32 alloc_len; - alloc_len = get_unaligned_be32(cmd + 10); + alloc_len = get_unaligned_be32(cdb + 10); /* following just in case virtual_gb changed */ sdebug_capacity = get_sdebug_capacity(); memset(arr, 0, SDEBUG_READCAP16_ARR_SZ); @@ -1907,14 +1907,14 @@ static int resp_readcap16(struct scsi_cmnd *scp, static int resp_report_tgtpgs(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) { - unsigned char *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); unsigned char *arr; int host_no = devip->sdbg_host->shost->host_no; int port_group_a, port_group_b, port_a, port_b; u32 alen, n, rlen; int ret; - alen = get_unaligned_be32(cmd + 6); + alen = get_unaligned_be32(cdb + 6); arr = kzalloc(SDEBUG_MAX_TGTPGS_ARR_SZ, GFP_ATOMIC); if (! arr) return DID_REQUEUE << 16; @@ -1992,13 +1992,13 @@ static int resp_rsup_opcodes(struct scsi_cmnd *scp, const struct opcode_info_t *oip; const struct opcode_info_t *r_oip; u8 *arr; - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); - rctd = !!(cmd[2] & 0x80); - reporting_opts = cmd[2] & 0x7; - req_opcode = cmd[3]; - req_sa = get_unaligned_be16(cmd + 4); - alloc_len = get_unaligned_be32(cmd + 6); + rctd = !!(cdb[2] & 0x80); + reporting_opts = cdb[2] & 0x7; + req_opcode = cdb[3]; + req_sa = get_unaligned_be16(cdb + 4); + alloc_len = get_unaligned_be32(cdb + 6); if (alloc_len < 4 || alloc_len > 0xffff) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 6, -1); return check_condition_result; @@ -2138,11 +2138,11 @@ static int resp_rsup_tmfs(struct scsi_cmnd *scp, bool repd; u32 alloc_len, len; u8 arr[16]; - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); memset(arr, 0, sizeof(arr)); - repd = !!(cmd[2] & 0x80); - alloc_len = get_unaligned_be32(cmd + 6); + repd = !!(cdb[2] & 0x80); + alloc_len = get_unaligned_be32(cdb + 6); if (alloc_len < 4) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 6, -1); return check_condition_result; @@ -2331,22 +2331,22 @@ static int resp_mode_sense(struct scsi_cmnd *scp, int target = scp->device->id; unsigned char *ap; unsigned char arr[SDEBUG_MAX_MSENSE_SZ]; - unsigned char *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); bool dbd, llbaa, msense_6, is_disk, is_zbc, bad_pcode; - dbd = !!(cmd[1] & 0x8); /* disable block descriptors */ - pcontrol = (cmd[2] & 0xc0) >> 6; - pcode = cmd[2] & 0x3f; - subpcode = cmd[3]; - msense_6 = (MODE_SENSE == cmd[0]); - llbaa = msense_6 ? false : !!(cmd[1] & 0x10); + dbd = !!(cdb[1] & 0x8); /* disable block descriptors */ + pcontrol = (cdb[2] & 0xc0) >> 6; + pcode = cdb[2] & 0x3f; + subpcode = cdb[3]; + msense_6 = (MODE_SENSE == cdb[0]); + llbaa = msense_6 ? false : !!(cdb[1] & 0x10); is_disk = (sdebug_ptype == TYPE_DISK); is_zbc = (devip->zmodel != BLK_ZONED_NONE); if ((is_disk || is_zbc) && !dbd) bd_len = llbaa ? 16 : 8; else bd_len = 0; - alloc_len = msense_6 ? cmd[4] : get_unaligned_be16(cmd + 7); + alloc_len = msense_6 ? cdb[4] : get_unaligned_be16(cdb + 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); @@ -2494,13 +2494,13 @@ static int resp_mode_select(struct scsi_cmnd *scp, int pf, sp, ps, md_len, bd_len, off, spf, pg_len; int param_len, res, mpage; unsigned char arr[SDEBUG_MAX_MSELECT_SZ]; - unsigned char *cmd = scp->cmnd; - int mselect6 = (MODE_SELECT == cmd[0]); + const u8 *cdb = scsi_cmnd_get_cdb(scp); + int mselect6 = (MODE_SELECT == cdb[0]); memset(arr, 0, sizeof(arr)); - pf = cmd[1] & 0x10; - sp = cmd[1] & 0x1; - param_len = mselect6 ? cmd[4] : get_unaligned_be16(cmd + 7); + pf = cdb[1] & 0x10; + sp = cdb[1] & 0x1; + param_len = mselect6 ? cdb[4] : get_unaligned_be16(cdb + 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; @@ -2613,18 +2613,18 @@ static int resp_log_sense(struct scsi_cmnd *scp, int ppc, sp, pcode, subpcode; u32 alloc_len, len, n; unsigned char arr[SDEBUG_MAX_LSENSE_SZ]; - unsigned char *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); memset(arr, 0, sizeof(arr)); - ppc = cmd[1] & 0x2; - sp = cmd[1] & 0x1; + ppc = cdb[1] & 0x2; + sp = cdb[1] & 0x1; if (ppc || sp) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 1, ppc ? 1 : 0); return check_condition_result; } - pcode = cmd[2] & 0x3f; - subpcode = cmd[3] & 0xff; - alloc_len = get_unaligned_be16(cmd + 7); + pcode = cdb[2] & 0x3f; + subpcode = cdb[3] & 0xff; + alloc_len = get_unaligned_be16(cdb + 7); arr[0] = pcode; if (0 == subpcode) { switch (pcode) { @@ -3132,6 +3132,7 @@ static int prot_verify_read(struct scsi_cmnd *scp, sector_t start_sec, struct sdeb_store_info *sip = devip2sip((struct sdebug_dev_info *) scp->device->hostdata, true); struct t10_pi_tuple *sdt; + const u8 *cdb = scsi_cmnd_get_cdb(scp); for (i = 0; i < sectors; i++, ei_lba++) { sector = start_sec + i; @@ -3147,7 +3148,7 @@ static int prot_verify_read(struct scsi_cmnd *scp, sector_t start_sec, * which type of error to return. Otherwise we would * have to iterate over the PI twice. */ - if (scp->cmnd[1] >> 5) { /* RDPROTECT */ + if (cdb[1] >> 5) { /* RDPROTECT */ ret = dif_verify(sdt, lba2fake_store(sip, sector), sector, ei_lba); if (ret) { @@ -3235,56 +3236,56 @@ static int resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) int ret; u64 lba; struct sdeb_store_info *sip = devip2sip(devip, true); - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); - switch (cmd[0]) { + switch (cdb[0]) { case READ_16: ei_lba = 0; - lba = get_unaligned_be64(cmd + 2); - num = get_unaligned_be32(cmd + 10); + lba = get_unaligned_be64(cdb + 2); + num = get_unaligned_be32(cdb + 10); check_prot = true; break; case READ_10: ei_lba = 0; - lba = get_unaligned_be32(cmd + 2); - num = get_unaligned_be16(cmd + 7); + lba = get_unaligned_be32(cdb + 2); + num = get_unaligned_be16(cdb + 7); check_prot = true; break; case READ_6: ei_lba = 0; - lba = (u32)cmd[3] | (u32)cmd[2] << 8 | - (u32)(cmd[1] & 0x1f) << 16; - num = (0 == cmd[4]) ? 256 : cmd[4]; + lba = (u32)cdb[3] | (u32)cdb[2] << 8 | + (u32)(cdb[1] & 0x1f) << 16; + num = (0 == cdb[4]) ? 256 : cdb[4]; check_prot = true; break; case READ_12: ei_lba = 0; - lba = get_unaligned_be32(cmd + 2); - num = get_unaligned_be32(cmd + 6); + lba = get_unaligned_be32(cdb + 2); + num = get_unaligned_be32(cdb + 6); check_prot = true; break; case XDWRITEREAD_10: ei_lba = 0; - lba = get_unaligned_be32(cmd + 2); - num = get_unaligned_be16(cmd + 7); + lba = get_unaligned_be32(cdb + 2); + num = get_unaligned_be16(cdb + 7); check_prot = false; break; default: /* assume READ(32) */ - lba = get_unaligned_be64(cmd + 12); - ei_lba = get_unaligned_be32(cmd + 20); - num = get_unaligned_be32(cmd + 28); + lba = get_unaligned_be64(cdb + 12); + ei_lba = get_unaligned_be32(cdb + 20); + num = get_unaligned_be32(cdb + 28); check_prot = false; break; } if (unlikely(have_dif_prot && check_prot)) { if (sdebug_dif == T10_PI_TYPE2_PROTECTION && - (cmd[1] & 0xe0)) { + (cdb[1] & 0xe0)) { mk_sense_invalid_opcode(scp); return check_condition_result; } if ((sdebug_dif == T10_PI_TYPE1_PROTECTION || sdebug_dif == T10_PI_TYPE3_PROTECTION) && - (cmd[1] & 0xe0) == 0) + (cdb[1] & 0xe0) == 0) sdev_printk(KERN_ERR, scp->device, "Unprotected RD " "to DIF device\n"); } @@ -3319,7 +3320,7 @@ static int resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) if (unlikely(sdebug_dix && scsi_prot_sg_count(scp))) { switch (prot_verify_read(scp, lba, num, ei_lba)) { case 1: /* Guard tag error */ - if (cmd[1] >> 5 != 3) { /* RDPROTECT != 3 */ + if (cdb[1] >> 5 != 3) { /* RDPROTECT != 3 */ sdeb_read_unlock(sip); mk_sense_buffer(scp, ABORTED_COMMAND, 0x10, 1); return check_condition_result; @@ -3330,7 +3331,7 @@ static int resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) } break; case 3: /* Reference tag error */ - if (cmd[1] >> 5 != 3) { /* RDPROTECT != 3 */ + if (cdb[1] >> 5 != 3) { /* RDPROTECT != 3 */ sdeb_read_unlock(sip); mk_sense_buffer(scp, ABORTED_COMMAND, 0x10, 3); return check_condition_result; @@ -3376,6 +3377,7 @@ static int prot_verify_write(struct scsi_cmnd *SCpnt, sector_t start_sec, int ret; struct t10_pi_tuple *sdt; void *daddr; + const u8 *cdb = scsi_cmnd_get_cdb(SCpnt); sector_t sector = start_sec; int ppage_offset; int dpage_offset; @@ -3415,7 +3417,7 @@ static int prot_verify_write(struct scsi_cmnd *SCpnt, sector_t start_sec, sdt = piter.addr + ppage_offset; daddr = diter.addr + dpage_offset; - if (SCpnt->cmnd[1] >> 5 != 3) { /* WRPROTECT */ + if (cdb[1] >> 5 != 3) { /* WRPROTECT */ ret = dif_verify(sdt, daddr, sector, ei_lba); if (ret) goto out; @@ -3532,56 +3534,56 @@ static int resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) int ret; u64 lba; struct sdeb_store_info *sip = devip2sip(devip, true); - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); - switch (cmd[0]) { + switch (cdb[0]) { case WRITE_16: ei_lba = 0; - lba = get_unaligned_be64(cmd + 2); - num = get_unaligned_be32(cmd + 10); + lba = get_unaligned_be64(cdb + 2); + num = get_unaligned_be32(cdb + 10); check_prot = true; break; case WRITE_10: ei_lba = 0; - lba = get_unaligned_be32(cmd + 2); - num = get_unaligned_be16(cmd + 7); + lba = get_unaligned_be32(cdb + 2); + num = get_unaligned_be16(cdb + 7); check_prot = true; break; case WRITE_6: ei_lba = 0; - lba = (u32)cmd[3] | (u32)cmd[2] << 8 | - (u32)(cmd[1] & 0x1f) << 16; - num = (0 == cmd[4]) ? 256 : cmd[4]; + lba = (u32)cdb[3] | (u32)cdb[2] << 8 | + (u32)(cdb[1] & 0x1f) << 16; + num = (0 == cdb[4]) ? 256 : cdb[4]; check_prot = true; break; case WRITE_12: ei_lba = 0; - lba = get_unaligned_be32(cmd + 2); - num = get_unaligned_be32(cmd + 6); + lba = get_unaligned_be32(cdb + 2); + num = get_unaligned_be32(cdb + 6); check_prot = true; break; case 0x53: /* XDWRITEREAD(10) */ ei_lba = 0; - lba = get_unaligned_be32(cmd + 2); - num = get_unaligned_be16(cmd + 7); + lba = get_unaligned_be32(cdb + 2); + num = get_unaligned_be16(cdb + 7); check_prot = false; break; default: /* assume WRITE(32) */ - lba = get_unaligned_be64(cmd + 12); - ei_lba = get_unaligned_be32(cmd + 20); - num = get_unaligned_be32(cmd + 28); + lba = get_unaligned_be64(cdb + 12); + ei_lba = get_unaligned_be32(cdb + 20); + num = get_unaligned_be32(cdb + 28); check_prot = false; break; } if (unlikely(have_dif_prot && check_prot)) { if (sdebug_dif == T10_PI_TYPE2_PROTECTION && - (cmd[1] & 0xe0)) { + (cdb[1] & 0xe0)) { mk_sense_invalid_opcode(scp); return check_condition_result; } if ((sdebug_dif == T10_PI_TYPE1_PROTECTION || sdebug_dif == T10_PI_TYPE3_PROTECTION) && - (cmd[1] & 0xe0) == 0) + (cdb[1] & 0xe0) == 0) sdev_printk(KERN_ERR, scp->device, "Unprotected WR " "to DIF device\n"); } @@ -3601,7 +3603,7 @@ static int resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) sdeb_write_unlock(sip); mk_sense_buffer(scp, ILLEGAL_REQUEST, 0x10, 1); return illegal_condition_result; - } else if (scp->cmnd[1] >> 5 != 3) { /* WRPROTECT != 3 */ + } else if (cdb[1] >> 5 != 3) { /* WRPROTECT != 3 */ sdeb_write_unlock(sip); mk_sense_buffer(scp, ABORTED_COMMAND, 0x10, 1); return check_condition_result; @@ -3612,7 +3614,7 @@ static int resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) sdeb_write_unlock(sip); mk_sense_buffer(scp, ILLEGAL_REQUEST, 0x10, 3); return illegal_condition_result; - } else if (scp->cmnd[1] >> 5 != 3) { /* WRPROTECT != 3 */ + } else if (cdb[1] >> 5 != 3) { /* WRPROTECT != 3 */ sdeb_write_unlock(sip); mk_sense_buffer(scp, ABORTED_COMMAND, 0x10, 3); return check_condition_result; @@ -3663,7 +3665,7 @@ static int resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) static int resp_write_scat(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) { - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); u8 *lrdp = NULL; u8 *up; struct sdeb_store_info *sip = devip2sip(devip, true); @@ -3677,18 +3679,18 @@ static int resp_write_scat(struct scsi_cmnd *scp, bool is_16; static const u32 lrd_size = 32; /* + parameter list header size */ - if (cmd[0] == VARIABLE_LENGTH_CMD) { + if (cdb[0] == VARIABLE_LENGTH_CMD) { is_16 = false; - wrprotect = (cmd[10] >> 5) & 0x7; - lbdof = get_unaligned_be16(cmd + 12); - num_lrd = get_unaligned_be16(cmd + 16); - bt_len = get_unaligned_be32(cmd + 28); + wrprotect = (cdb[10] >> 5) & 0x7; + lbdof = get_unaligned_be16(cdb + 12); + num_lrd = get_unaligned_be16(cdb + 16); + bt_len = get_unaligned_be32(cdb + 28); } else { /* that leaves WRITE SCATTERED(16) */ is_16 = true; - wrprotect = (cmd[2] >> 5) & 0x7; - lbdof = get_unaligned_be16(cmd + 4); - num_lrd = get_unaligned_be16(cmd + 8); - bt_len = get_unaligned_be32(cmd + 10); + wrprotect = (cdb[2] >> 5) & 0x7; + lbdof = get_unaligned_be16(cdb + 4); + num_lrd = get_unaligned_be16(cdb + 8); + bt_len = get_unaligned_be32(cdb + 10); if (unlikely(have_dif_prot)) { if (sdebug_dif == T10_PI_TYPE2_PROTECTION && wrprotect) { @@ -3887,21 +3889,21 @@ static int resp_write_same(struct scsi_cmnd *scp, u64 lba, u32 num, static int resp_write_same_10(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) { - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); u32 lba; u16 num; u32 ei_lba = 0; bool unmap = false; - if (cmd[1] & 0x8) { + if (cdb[1] & 0x8) { if (sdebug_lbpws10 == 0) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 1, 3); return check_condition_result; } else unmap = true; } - lba = get_unaligned_be32(cmd + 2); - num = get_unaligned_be16(cmd + 7); + lba = get_unaligned_be32(cdb + 2); + num = get_unaligned_be16(cdb + 7); if (num > sdebug_write_same_length) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 7, -1); return check_condition_result; @@ -3912,24 +3914,24 @@ static int resp_write_same_10(struct scsi_cmnd *scp, static int resp_write_same_16(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) { - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); u64 lba; u32 num; u32 ei_lba = 0; bool unmap = false; bool ndob = false; - if (cmd[1] & 0x8) { /* UNMAP */ + if (cdb[1] & 0x8) { /* UNMAP */ if (sdebug_lbpws == 0) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 1, 3); return check_condition_result; } else unmap = true; } - if (cmd[1] & 0x1) /* NDOB (no data-out buffer, assumes zeroes) */ + if (cdb[1] & 0x1) /* NDOB (no data-out buffer, assumes zeroes) */ ndob = true; - lba = get_unaligned_be64(cmd + 2); - num = get_unaligned_be32(cmd + 10); + lba = get_unaligned_be64(cdb + 2); + num = get_unaligned_be32(cdb + 10); if (num > sdebug_write_same_length) { mk_sense_invalid_fld(scp, SDEB_IN_CDB, 10, -1); return check_condition_result; @@ -3943,12 +3945,12 @@ static int resp_write_same_16(struct scsi_cmnd *scp, static int resp_write_buffer(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) { - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); struct scsi_device *sdp = scp->device; struct sdebug_dev_info *dp; u8 mode; - mode = cmd[1] & 0x1f; + mode = cdb[1] & 0x1f; switch (mode) { case 0x4: /* download microcode (MC) and activate (ACT) */ /* set UAs on this device only */ @@ -3989,7 +3991,7 @@ static int resp_write_buffer(struct scsi_cmnd *scp, static int resp_comp_write(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) { - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); u8 *arr; struct sdeb_store_info *sip = devip2sip(devip, true); u64 lba; @@ -3999,18 +4001,18 @@ static int resp_comp_write(struct scsi_cmnd *scp, int ret; int retval = 0; - lba = get_unaligned_be64(cmd + 2); - num = cmd[13]; /* 1 to a maximum of 255 logical blocks */ + lba = get_unaligned_be64(cdb + 2); + num = cdb[13]; /* 1 to a maximum of 255 logical blocks */ if (0 == num) return 0; /* degenerate case, not an error */ if (sdebug_dif == T10_PI_TYPE2_PROTECTION && - (cmd[1] & 0xe0)) { + (cdb[1] & 0xe0)) { mk_sense_invalid_opcode(scp); return check_condition_result; } if ((sdebug_dif == T10_PI_TYPE1_PROTECTION || sdebug_dif == T10_PI_TYPE3_PROTECTION) && - (cmd[1] & 0xe0) == 0) + (cdb[1] & 0xe0) == 0) sdev_printk(KERN_ERR, scp->device, "Unprotected WR " "to DIF device\n"); ret = check_device_access_params(scp, lba, num, false); @@ -4057,13 +4059,14 @@ static int resp_unmap(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) { unsigned char *buf; struct unmap_block_desc *desc; + const u8 *cdb = scsi_cmnd_get_cdb(scp); struct sdeb_store_info *sip = devip2sip(devip, true); unsigned int i, payload_len, descriptors; int ret; if (!scsi_debug_lbp()) return 0; /* fib and say its done */ - payload_len = get_unaligned_be16(scp->cmnd + 7); + payload_len = get_unaligned_be16(cdb + 7); BUG_ON(scsi_bufflen(scp) != payload_len); descriptors = (payload_len - 8) / 16; @@ -4113,14 +4116,14 @@ static int resp_unmap(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) static int resp_get_lba_status(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) { - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); u64 lba; u32 alloc_len, mapped, num; int ret; u8 arr[SDEBUG_GET_LBA_STATUS_LEN]; - lba = get_unaligned_be64(cmd + 2); - alloc_len = get_unaligned_be32(cmd + 10); + lba = get_unaligned_be64(cdb + 2); + alloc_len = get_unaligned_be32(cdb + 10); if (alloc_len < 24) return 0; @@ -4158,20 +4161,20 @@ static int resp_sync_cache(struct scsi_cmnd *scp, int res = 0; u64 lba; u32 num_blocks; - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); - if (cmd[0] == SYNCHRONIZE_CACHE) { /* 10 byte cdb */ - lba = get_unaligned_be32(cmd + 2); - num_blocks = get_unaligned_be16(cmd + 7); + if (cdb[0] == SYNCHRONIZE_CACHE) { /* 10 byte cdb */ + lba = get_unaligned_be32(cdb + 2); + num_blocks = get_unaligned_be16(cdb + 7); } else { /* SYNCHRONIZE_CACHE(16) */ - lba = get_unaligned_be64(cmd + 2); - num_blocks = get_unaligned_be32(cmd + 10); + lba = get_unaligned_be64(cdb + 2); + num_blocks = get_unaligned_be32(cdb + 10); } if (lba + num_blocks > sdebug_capacity) { mk_sense_buffer(scp, ILLEGAL_REQUEST, LBA_OUT_OF_RANGE, 0); return check_condition_result; } - if (!write_since_sync || (cmd[1] & 0x2)) + if (!write_since_sync || (cdb[1] & 0x2)) res = SDEG_RES_IMMED_MASK; else /* delay if write_since_sync and IMMED clear */ write_since_sync = false; @@ -4192,16 +4195,16 @@ static int resp_pre_fetch(struct scsi_cmnd *scp, u64 lba; u64 block, rest = 0; u32 nblks; - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); struct sdeb_store_info *sip = devip2sip(devip, true); u8 *fsp = sip->storep; - if (cmd[0] == PRE_FETCH) { /* 10 byte cdb */ - lba = get_unaligned_be32(cmd + 2); - nblks = get_unaligned_be16(cmd + 7); + if (cdb[0] == PRE_FETCH) { /* 10 byte cdb */ + lba = get_unaligned_be32(cdb + 2); + nblks = get_unaligned_be16(cdb + 7); } else { /* PRE-FETCH(16) */ - lba = get_unaligned_be64(cmd + 2); - nblks = get_unaligned_be32(cmd + 10); + lba = get_unaligned_be64(cdb + 2); + nblks = get_unaligned_be32(cdb + 10); } if (lba + nblks > sdebug_capacity) { mk_sense_buffer(scp, ILLEGAL_REQUEST, LBA_OUT_OF_RANGE, 0); @@ -4222,7 +4225,7 @@ static int resp_pre_fetch(struct scsi_cmnd *scp, prefetch_range(fsp, rest * sdebug_sector_size); sdeb_read_unlock(sip); fini: - if (cmd[1] & 0x2) + if (cdb[1] & 0x2) res = SDEG_RES_IMMED_MASK; return res | condition_met_result; } @@ -4240,7 +4243,7 @@ static int resp_pre_fetch(struct scsi_cmnd *scp, static int resp_report_luns(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) { - unsigned char *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); unsigned int alloc_len; unsigned char select_report; u64 lun; @@ -4256,8 +4259,8 @@ static int resp_report_luns(struct scsi_cmnd *scp, clear_luns_changed_on_target(devip); - select_report = cmd[2]; - alloc_len = get_unaligned_be32(cmd + 6); + select_report = cdb[2]; + alloc_len = get_unaligned_be32(cdb + 6); if (alloc_len < 4) { pr_err("alloc len too small %d\n", alloc_len); @@ -4339,10 +4342,10 @@ static int resp_verify(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) const u32 lb_size = sdebug_sector_size; u64 lba; u8 *arr; - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); struct sdeb_store_info *sip = devip2sip(devip, true); - bytchk = (cmd[1] >> 1) & 0x3; + bytchk = (cdb[1] >> 1) & 0x3; if (bytchk == 0) { return 0; /* always claim internal verify okay */ } else if (bytchk == 2) { @@ -4351,14 +4354,14 @@ static int resp_verify(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) } else if (bytchk == 3) { is_bytchk3 = true; /* 1 block sent, compared repeatedly */ } - switch (cmd[0]) { + switch (cdb[0]) { case VERIFY_16: - lba = get_unaligned_be64(cmd + 2); - vnum = get_unaligned_be32(cmd + 10); + lba = get_unaligned_be64(cdb + 2); + vnum = get_unaligned_be32(cdb + 10); break; case VERIFY: /* is VERIFY(10) */ - lba = get_unaligned_be32(cmd + 2); - vnum = get_unaligned_be16(cmd + 7); + lba = get_unaligned_be32(cdb + 2); + vnum = get_unaligned_be16(cdb + 7); break; default: mk_sense_invalid_opcode(scp); @@ -4418,7 +4421,7 @@ static int resp_report_zones(struct scsi_cmnd *scp, bool partial; u64 lba, zs_lba; u8 *arr = NULL, *desc; - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); struct sdeb_zone_state *zsp; struct sdeb_store_info *sip = devip2sip(devip, false); @@ -4426,12 +4429,12 @@ static int resp_report_zones(struct scsi_cmnd *scp, mk_sense_invalid_opcode(scp); return check_condition_result; } - zs_lba = get_unaligned_be64(cmd + 2); - alloc_len = get_unaligned_be32(cmd + 10); + zs_lba = get_unaligned_be64(cdb + 2); + alloc_len = get_unaligned_be32(cdb + 10); if (alloc_len == 0) return 0; /* not an error */ - rep_opts = cmd[14] & 0x3f; - partial = cmd[14] & 0x80; + rep_opts = cdb[14] & 0x3f; + partial = cdb[14] & 0x80; if (zs_lba >= sdebug_capacity) { mk_sense_buffer(scp, ILLEGAL_REQUEST, LBA_OUT_OF_RANGE, 0); @@ -4559,9 +4562,9 @@ static int resp_open_zone(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) int res = 0; u64 z_id; enum sdebug_z_cond zc; - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); struct sdeb_zone_state *zsp; - bool all = cmd[14] & 0x01; + bool all = cdb[14] & 0x01; struct sdeb_store_info *sip = devip2sip(devip, false); if (!sdebug_dev_is_zoned(devip)) { @@ -4586,7 +4589,7 @@ static int resp_open_zone(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) } /* Open the specified zone */ - z_id = get_unaligned_be64(cmd + 2); + z_id = get_unaligned_be64(cdb + 2); if (z_id >= sdebug_capacity) { mk_sense_buffer(scp, ILLEGAL_REQUEST, LBA_OUT_OF_RANGE, 0); res = check_condition_result; @@ -4635,9 +4638,9 @@ static int resp_close_zone(struct scsi_cmnd *scp, { int res = 0; u64 z_id; - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); struct sdeb_zone_state *zsp; - bool all = cmd[14] & 0x01; + bool all = cdb[14] & 0x01; struct sdeb_store_info *sip = devip2sip(devip, false); if (!sdebug_dev_is_zoned(devip)) { @@ -4653,7 +4656,7 @@ static int resp_close_zone(struct scsi_cmnd *scp, } /* Close specified zone */ - z_id = get_unaligned_be64(cmd + 2); + z_id = get_unaligned_be64(cdb + 2); if (z_id >= sdebug_capacity) { mk_sense_buffer(scp, ILLEGAL_REQUEST, LBA_OUT_OF_RANGE, 0); res = check_condition_result; @@ -4708,8 +4711,8 @@ static int resp_finish_zone(struct scsi_cmnd *scp, struct sdeb_zone_state *zsp; int res = 0; u64 z_id; - u8 *cmd = scp->cmnd; - bool all = cmd[14] & 0x01; + const u8 *cdb = scsi_cmnd_get_cdb(scp); + bool all = cdb[14] & 0x01; struct sdeb_store_info *sip = devip2sip(devip, false); if (!sdebug_dev_is_zoned(devip)) { @@ -4725,7 +4728,7 @@ static int resp_finish_zone(struct scsi_cmnd *scp, } /* Finish the specified zone */ - z_id = get_unaligned_be64(cmd + 2); + z_id = get_unaligned_be64(cdb + 2); if (z_id >= sdebug_capacity) { mk_sense_buffer(scp, ILLEGAL_REQUEST, LBA_OUT_OF_RANGE, 0); res = check_condition_result; @@ -4788,8 +4791,8 @@ static int resp_rwp_zone(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) struct sdeb_zone_state *zsp; int res = 0; u64 z_id; - u8 *cmd = scp->cmnd; - bool all = cmd[14] & 0x01; + const u8 *cdb = scsi_cmnd_get_cdb(scp); + bool all = cdb[14] & 0x01; struct sdeb_store_info *sip = devip2sip(devip, false); if (!sdebug_dev_is_zoned(devip)) { @@ -4804,7 +4807,7 @@ static int resp_rwp_zone(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) goto fini; } - z_id = get_unaligned_be64(cmd + 2); + z_id = get_unaligned_be64(cdb + 2); if (z_id >= sdebug_capacity) { mk_sense_buffer(scp, ILLEGAL_REQUEST, LBA_OUT_OF_RANGE, 0); res = check_condition_result; @@ -5528,7 +5531,7 @@ static bool inject_on_this_cmd(void) static int process_deflect_incoming(struct scsi_cmnd *scp) { - u8 opcode = scp->cmnd[0]; + u8 opcode = scsi_cmnd_get_cdb(scp)[0]; if (opcode == SYNCHRONIZE_CACHE || opcode == SYNCHRONIZE_CACHE_16) return 0; @@ -7436,6 +7439,7 @@ static int resp_not_ready(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) u64 diff_ns = 0; ktime_t now_ts = ktime_get_boottime(); struct scsi_device *sdp = scp->device; + const u8 *cmd = scsi_cmnd_get_cdb(scp); stopped_state = atomic_read(&devip->stopped); if (stopped_state == 2) { @@ -7451,7 +7455,7 @@ static int resp_not_ready(struct scsi_cmnd *scp, struct sdebug_dev_info *devip) if (sdebug_verbose) sdev_printk(KERN_INFO, sdp, "%s: Not ready: in process of becoming ready\n", my_name); - if (scp->cmnd[0] == TEST_UNIT_READY) { + if (cmd[0] == TEST_UNIT_READY) { u64 tur_nanosecs_to_ready = (u64)sdeb_tur_ms_to_ready * 1000000; if (diff_ns <= tur_nanosecs_to_ready) @@ -7604,7 +7608,7 @@ static int scsi_debug_queuecommand(struct Scsi_Host *shost, const struct opcode_info_t *oip; const struct opcode_info_t *r_oip; struct sdebug_dev_info *devip; - u8 *cmd = scp->cmnd; + const u8 *cdb = scsi_cmnd_get_cdb(scp); int (*r_pfp)(struct scsi_cmnd *, struct sdebug_dev_info *); int (*pfp)(struct scsi_cmnd *, struct sdebug_dev_info *) = NULL; int k, na; @@ -7612,7 +7616,7 @@ static int scsi_debug_queuecommand(struct Scsi_Host *shost, u64 lun_index = sdp->lun & 0x3FFF; u32 flags; u16 sa; - u8 opcode = cmd[0]; + u8 opcode = cdb[0]; bool has_wlun_rl; bool inject_now; @@ -7625,20 +7629,32 @@ static int scsi_debug_queuecommand(struct Scsi_Host *shost, } if (unlikely(sdebug_verbose && !(SDEBUG_OPT_NO_CDB_NOISE & sdebug_opts))) { - char b[120]; + char b[200]; int n, len, sb; len = scp->cmd_len; sb = (int)sizeof(b); - if (len > 32) - strcpy(b, "too long, over 32 bytes"); + k = 0; + if (len > 64) + strcpy(b, "too long, over 64 bytes"); else { - for (k = 0, n = 0; k < len && n < sb; ++k) + for (n = 0; k < len && k < 16 && n < sb; ++k) n += scnprintf(b + n, sb - n, "%02x ", - (u32)cmd[k]); + (u32)cdb[k]); } - sdev_printk(KERN_INFO, sdp, "%s: tag=%#x, cmd %s\n", my_name, + sdev_printk(KERN_INFO, sdp, "%s: tag=%#x, cmd: %s\n", my_name, blk_mq_unique_tag(scsi_cmd_to_rq(scp)), b); + while (k > 0 && k < len) { + for (n = 0; (k < len && n < sb); ++k) { + n += scnprintf(b + n, sb - n, "%02x ", + (u32)cdb[k]); + if (((k + 1) % 16) == 0) { + ++k; + break; + } + } + sdev_printk(KERN_INFO, sdp, " extra cmd: %s\n", b); + } } if (unlikely(inject_now && (sdebug_opts & SDEBUG_OPT_HOST_BUSY))) return SCSI_MLQUEUE_HOST_BUSY; @@ -7663,9 +7679,9 @@ static int scsi_debug_queuecommand(struct Scsi_Host *shost, r_oip = oip; if (FF_SA & r_oip->flags) { if (F_SA_LOW & oip->flags) - sa = 0x1f & cmd[1]; + sa = 0x1f & cdb[1]; else - sa = get_unaligned_be16(cmd + 8); + sa = get_unaligned_be16(cdb + 8); for (k = 0; k <= na; oip = r_oip->arrp + k++) { if (opcode == oip->opcode && sa == oip->sa) break; @@ -7703,7 +7719,7 @@ static int scsi_debug_queuecommand(struct Scsi_Host *shost, int j; for (k = 1; k < oip->len_mask[0] && k < 16; ++k) { - rem = ~oip->len_mask[k] & cmd[k]; + rem = ~oip->len_mask[k] & cdb[k]; if (rem) { for (j = 7; j >= 0; --j, rem <<= 1) { if (0x80 & rem) @@ -7721,7 +7737,7 @@ static int scsi_debug_queuecommand(struct Scsi_Host *shost, if (errsts) goto check_cond; } - if (unlikely(((F_M_ACCESS & flags) || scp->cmnd[0] == TEST_UNIT_READY) && + if (unlikely(((F_M_ACCESS & flags) || cdb[0] == TEST_UNIT_READY) && atomic_read(&devip->stopped))) { errsts = resp_not_ready(scp, devip); if (errsts) -- 2.25.1