From: Caleb Sander Mateos Date: Thu, 8 Jan 2026 09:19:42 +0000 (-0700) Subject: selftests: ublk: add kublk support for integrity params X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6ed6476c4aefa9ee3ba90f39bcc002dd034f6e03;p=thirdparty%2Fkernel%2Flinux.git selftests: ublk: add kublk support for integrity params Add integrity param command line arguments to kublk. Plumb these to struct ublk_params for the null and fault_inject targets, as they don't need to actually read or write the integrity data. Forbid the integrity params for loop or stripe until the integrity data copy is implemented. Signed-off-by: Caleb Sander Mateos Reviewed-by: Ming Lei Signed-off-by: Jens Axboe --- diff --git a/tools/testing/selftests/ublk/fault_inject.c b/tools/testing/selftests/ublk/fault_inject.c index b227bd78b2528..3b897f69c014c 100644 --- a/tools/testing/selftests/ublk/fault_inject.c +++ b/tools/testing/selftests/ublk/fault_inject.c @@ -33,6 +33,7 @@ static int ublk_fault_inject_tgt_init(const struct dev_ctx *ctx, .dev_sectors = dev_size >> 9, }, }; + ublk_set_integrity_params(ctx, &dev->tgt.params); dev->private_data = (void *)(unsigned long)(ctx->fault_inject.delay_us * 1000); return 0; diff --git a/tools/testing/selftests/ublk/file_backed.c b/tools/testing/selftests/ublk/file_backed.c index 269d5f124e06a..c14ce6608696d 100644 --- a/tools/testing/selftests/ublk/file_backed.c +++ b/tools/testing/selftests/ublk/file_backed.c @@ -158,6 +158,10 @@ static int ublk_loop_tgt_init(const struct dev_ctx *ctx, struct ublk_dev *dev) ublk_err("%s: not support auto_zc_fallback\n", __func__); return -EINVAL; } + if (ctx->metadata_size) { + ublk_err("%s: integrity not supported\n", __func__); + return -EINVAL; + } ret = backing_file_tgt_init(dev); if (ret) diff --git a/tools/testing/selftests/ublk/kublk.c b/tools/testing/selftests/ublk/kublk.c index 261095f19c93a..48e1865b4875b 100644 --- a/tools/testing/selftests/ublk/kublk.c +++ b/tools/testing/selftests/ublk/kublk.c @@ -3,6 +3,7 @@ * Description: uring_cmd based ublk */ +#include #include "kublk.h" #define MAX_NR_TGT_ARG 64 @@ -1550,6 +1551,8 @@ static void __cmd_create_help(char *exe, bool recovery) printf("\t[--foreground] [--quiet] [-z] [--auto_zc] [--auto_zc_fallback] [--debug_mask mask] [-r 0|1] [-g] [-u]\n"); printf("\t[-e 0|1 ] [-i 0|1] [--no_ublk_fixed_fd]\n"); printf("\t[--nthreads threads] [--per_io_tasks]\n"); + printf("\t[--integrity_capable] [--integrity_reftag] [--metadata_size SIZE] " + "[--pi_offset OFFSET] [--csum_type ip|t10dif|nvme] [--tag_size SIZE]\n"); printf("\t[target options] [backfile1] [backfile2] ...\n"); printf("\tdefault: nr_queues=2(max 32), depth=128(max 1024), dev_id=-1(auto allocation)\n"); printf("\tdefault: nthreads=nr_queues"); @@ -1613,6 +1616,12 @@ int main(int argc, char *argv[]) { "nthreads", 1, NULL, 0 }, { "per_io_tasks", 0, NULL, 0 }, { "no_ublk_fixed_fd", 0, NULL, 0 }, + { "integrity_capable", 0, NULL, 0 }, + { "integrity_reftag", 0, NULL, 0 }, + { "metadata_size", 1, NULL, 0 }, + { "pi_offset", 1, NULL, 0 }, + { "csum_type", 1, NULL, 0 }, + { "tag_size", 1, NULL, 0 }, { 0, 0, 0, 0 } }; const struct ublk_tgt_ops *ops = NULL; @@ -1623,6 +1632,7 @@ int main(int argc, char *argv[]) .nr_hw_queues = 2, .dev_id = -1, .tgt_type = "unknown", + .csum_type = LBMD_PI_CSUM_NONE, }; int ret = -EINVAL, i; int tgt_argc = 1; @@ -1697,6 +1707,28 @@ int main(int argc, char *argv[]) ctx.per_io_tasks = 1; if (!strcmp(longopts[option_idx].name, "no_ublk_fixed_fd")) ctx.no_ublk_fixed_fd = 1; + if (!strcmp(longopts[option_idx].name, "integrity_capable")) + ctx.integrity_flags |= LBMD_PI_CAP_INTEGRITY; + if (!strcmp(longopts[option_idx].name, "integrity_reftag")) + ctx.integrity_flags |= LBMD_PI_CAP_REFTAG; + if (!strcmp(longopts[option_idx].name, "metadata_size")) + ctx.metadata_size = strtoul(optarg, NULL, 0); + if (!strcmp(longopts[option_idx].name, "pi_offset")) + ctx.pi_offset = strtoul(optarg, NULL, 0); + if (!strcmp(longopts[option_idx].name, "csum_type")) { + if (!strcmp(optarg, "ip")) { + ctx.csum_type = LBMD_PI_CSUM_IP; + } else if (!strcmp(optarg, "t10dif")) { + ctx.csum_type = LBMD_PI_CSUM_CRC16_T10DIF; + } else if (!strcmp(optarg, "nvme")) { + ctx.csum_type = LBMD_PI_CSUM_CRC64_NVME; + } else { + ublk_err("invalid csum_type: %s\n", optarg); + return -EINVAL; + } + } + if (!strcmp(longopts[option_idx].name, "tag_size")) + ctx.tag_size = strtoul(optarg, NULL, 0); break; case '?': /* @@ -1739,6 +1771,21 @@ int main(int argc, char *argv[]) return -EINVAL; } + if (ctx.metadata_size) { + if (!(ctx.flags & UBLK_F_USER_COPY)) { + ublk_err("integrity requires user_copy\n"); + return -EINVAL; + } + + ctx.flags |= UBLK_F_INTEGRITY; + } else if (ctx.integrity_flags || + ctx.pi_offset || + ctx.csum_type != LBMD_PI_CSUM_NONE || + ctx.tag_size) { + ublk_err("integrity parameters require metadata_size\n"); + return -EINVAL; + } + i = optind; while (i < argc && ctx.nr_files < MAX_BACK_FILES) { ctx.files[ctx.nr_files++] = argv[i++]; diff --git a/tools/testing/selftests/ublk/kublk.h b/tools/testing/selftests/ublk/kublk.h index 8a83b90ec603a..d00f2b465cdfb 100644 --- a/tools/testing/selftests/ublk/kublk.h +++ b/tools/testing/selftests/ublk/kublk.h @@ -78,6 +78,11 @@ struct dev_ctx { unsigned int auto_zc_fallback:1; unsigned int per_io_tasks:1; unsigned int no_ublk_fixed_fd:1; + __u32 integrity_flags; + __u8 metadata_size; + __u8 pi_offset; + __u8 csum_type; + __u8 tag_size; int _evtfd; int _shmid; @@ -202,6 +207,22 @@ struct ublk_dev { extern int ublk_queue_io_cmd(struct ublk_thread *t, struct ublk_io *io); +static inline void ublk_set_integrity_params(const struct dev_ctx *ctx, + struct ublk_params *params) +{ + if (!ctx->metadata_size) + return; + + params->types |= UBLK_PARAM_TYPE_INTEGRITY; + params->integrity = (struct ublk_param_integrity) { + .flags = ctx->integrity_flags, + .interval_exp = params->basic.logical_bs_shift, + .metadata_size = ctx->metadata_size, + .pi_offset = ctx->pi_offset, + .csum_type = ctx->csum_type, + .tag_size = ctx->tag_size, + }; +} static inline int ublk_io_auto_zc_fallback(const struct ublksrv_io_desc *iod) { diff --git a/tools/testing/selftests/ublk/null.c b/tools/testing/selftests/ublk/null.c index 280043f6b6896..3aa162f08476f 100644 --- a/tools/testing/selftests/ublk/null.c +++ b/tools/testing/selftests/ublk/null.c @@ -36,6 +36,7 @@ static int ublk_null_tgt_init(const struct dev_ctx *ctx, struct ublk_dev *dev) .max_segments = 32, }, }; + ublk_set_integrity_params(ctx, &dev->tgt.params); if (info->flags & UBLK_F_SUPPORT_ZERO_COPY) dev->tgt.sq_depth = dev->tgt.cq_depth = 2 * info->queue_depth; diff --git a/tools/testing/selftests/ublk/stripe.c b/tools/testing/selftests/ublk/stripe.c index fd412e1f01c0e..d4aaf3351d712 100644 --- a/tools/testing/selftests/ublk/stripe.c +++ b/tools/testing/selftests/ublk/stripe.c @@ -298,6 +298,10 @@ static int ublk_stripe_tgt_init(const struct dev_ctx *ctx, struct ublk_dev *dev) ublk_err("%s: not support auto_zc_fallback\n", __func__); return -EINVAL; } + if (ctx->metadata_size) { + ublk_err("%s: integrity not supported\n", __func__); + return -EINVAL; + } if ((chunk_size & (chunk_size - 1)) || !chunk_size) { ublk_err("invalid chunk size %u\n", chunk_size);