diff options
31 files changed, 6811 insertions, 161 deletions
diff --git a/cmd/Makefile.am b/cmd/Makefile.am index 05f42a556..04aa7c633 100644 --- a/cmd/Makefile.am +++ b/cmd/Makefile.am @@ -1,3 +1,3 @@ SUBDIRS = zfs zpool zdb zhack zinject zstreamdump ztest zpios SUBDIRS += mount_zfs fsck_zfs zvol_id vdev_id arcstat dbufstat zed -SUBDIRS += arc_summary +SUBDIRS += arc_summary raidz_test diff --git a/cmd/raidz_test/.gitignore b/cmd/raidz_test/.gitignore new file mode 100644 index 000000000..f8b83d9cc --- /dev/null +++ b/cmd/raidz_test/.gitignore @@ -0,0 +1 @@ +/raidz_test diff --git a/cmd/raidz_test/Makefile.am b/cmd/raidz_test/Makefile.am new file mode 100644 index 000000000..23ad08ad9 --- /dev/null +++ b/cmd/raidz_test/Makefile.am @@ -0,0 +1,21 @@ +include $(top_srcdir)/config/Rules.am + +AM_CFLAGS += $(DEBUG_STACKFLAGS) $(FRAME_LARGER_THAN) +AM_CPPFLAGS += -DDEBUG + +DEFAULT_INCLUDES += \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/lib/libspl/include + +bin_PROGRAMS = raidz_test + +raidz_test_SOURCES = \ + raidz_test.h \ + raidz_test.c \ + raidz_bench.c + +raidz_test_LDADD = \ + $(top_builddir)/lib/libuutil/libuutil.la \ + $(top_builddir)/lib/libzpool/libzpool.la + +raidz_test_LDADD += -lm -ldl diff --git a/cmd/raidz_test/raidz_bench.c b/cmd/raidz_test/raidz_bench.c new file mode 100644 index 000000000..040171a38 --- /dev/null +++ b/cmd/raidz_test/raidz_bench.c @@ -0,0 +1,241 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright (C) 2016 Gvozden Nešković. All rights reserved. + */ + +#include <sys/zfs_context.h> +#include <sys/time.h> +#include <sys/wait.h> +#include <sys/zio.h> +#include <sys/vdev_raidz.h> +#include <sys/vdev_raidz_impl.h> +#include <stdio.h> + +#include <sys/time.h> +#include <sys/resource.h> + +#include "raidz_test.h" + +#define GEN_BENCH_MEMORY (((uint64_t)1ULL)<<32) +#define REC_BENCH_MEMORY (((uint64_t)1ULL)<<29) +#define BENCH_ASHIFT 12 +#define MIN_CS_SHIFT BENCH_ASHIFT +#define MAX_CS_SHIFT SPA_MAXBLOCKSHIFT + + +static zio_t zio_bench; +static raidz_map_t *rm_bench; +static size_t max_data_size = SPA_MAXBLOCKSIZE; + +static void +bench_init_raidz_map(void) +{ + zio_bench.io_offset = 0; + zio_bench.io_size = max_data_size; + + /* + * To permit larger column sizes these have to be done + * allocated using aligned alloc instead of zio_data_buf_alloc + */ + zio_bench.io_data = raidz_alloc(max_data_size); + + init_zio_data(&zio_bench); +} + +static void +bench_fini_raidz_maps(void) +{ + /* tear down golden zio */ + raidz_free(zio_bench.io_data, max_data_size); + bzero(&zio_bench, sizeof (zio_t)); +} + +static double +get_time_diff(struct rusage *start, struct rusage *stop) +{ + return (((double)stop->ru_utime.tv_sec * (double)MICROSEC + + (double)stop->ru_utime.tv_usec) - + ((double)start->ru_utime.tv_sec * (double)MICROSEC + + (double)start->ru_utime.tv_usec)) / (double)MICROSEC; +} + +static inline void +run_gen_bench_impl(const char *impl) +{ + int fn, ncols; + uint64_t ds, iter_cnt, iter, disksize; + struct rusage start, stop; + double elapsed, d_bw; + + /* Benchmark generate functions */ + for (fn = 0; fn < RAIDZ_GEN_NUM; fn++) { + + for (ds = MIN_CS_SHIFT; ds <= MAX_CS_SHIFT; ds++) { + + /* create suitable raidz_map */ + ncols = rto_opts.rto_dcols + fn + 1; + zio_bench.io_size = 1ULL << ds; + rm_bench = vdev_raidz_map_alloc(&zio_bench, + BENCH_ASHIFT, ncols, fn+1); + + /* estimate iteration count */ + iter_cnt = GEN_BENCH_MEMORY; + iter_cnt /= zio_bench.io_size; + + getrusage(RUSAGE_THREAD, &start); + for (iter = 0; iter < iter_cnt; iter++) + vdev_raidz_generate_parity(rm_bench); + getrusage(RUSAGE_THREAD, &stop); + + elapsed = get_time_diff(&start, &stop); + disksize = (1ULL << ds) / rto_opts.rto_dcols; + d_bw = (double)iter_cnt * (double)disksize; + d_bw /= (1024.0 * 1024.0 * elapsed); + + LOG(D_ALL, "%10s, %8s, %zu, %10llu, %lf, %lf, %u\n", + impl, + raidz_gen_name[fn], + rto_opts.rto_dcols, + (1ULL<<ds), + d_bw, + d_bw * (double)(ncols), + (unsigned) iter_cnt); + + vdev_raidz_map_free(rm_bench); + } + } +} + +void +run_gen_bench(void) +{ + char **impl_name; + + LOG(D_INFO, DBLSEP "\nBenchmarking parity generation...\n\n"); + LOG(D_ALL, "impl, math, dcols, iosize, disk_bw, total_bw, iter\n"); + + for (impl_name = (char **)raidz_impl_names; *impl_name != NULL; + impl_name++) { + + if (vdev_raidz_impl_set(*impl_name) != 0) + continue; + + run_gen_bench_impl(*impl_name); + } +} + +static void +run_rec_bench_impl(const char *impl) +{ + struct rusage start, stop; + int fn, ncols, nbad; + uint64_t ds, iter_cnt, iter, disksize; + double elapsed, d_bw; + static const int tgt[7][3] = { + {1, 2, 3}, /* rec_p: bad QR & D[0] */ + {0, 2, 3}, /* rec_q: bad PR & D[0] */ + {0, 1, 3}, /* rec_r: bad PQ & D[0] */ + {2, 3, 4}, /* rec_pq: bad R & D[0][1] */ + {1, 3, 4}, /* rec_pr: bad Q & D[0][1] */ + {0, 3, 4}, /* rec_qr: bad P & D[0][1] */ + {3, 4, 5} /* rec_pqr: bad & D[0][1][2] */ + }; + + for (fn = 0; fn < RAIDZ_REC_NUM; fn++) { + for (ds = MIN_CS_SHIFT; ds <= MAX_CS_SHIFT; ds++) { + + /* create suitable raidz_map */ + ncols = rto_opts.rto_dcols + PARITY_PQR; + zio_bench.io_size = 1ULL << ds; + + /* + * raidz block is too short to test + * the requested method + */ + if (zio_bench.io_size / rto_opts.rto_dcols < + (1ULL << BENCH_ASHIFT)) + continue; + + rm_bench = vdev_raidz_map_alloc(&zio_bench, + BENCH_ASHIFT, ncols, PARITY_PQR); + + /* estimate iteration count */ + iter_cnt = (REC_BENCH_MEMORY); + iter_cnt /= zio_bench.io_size; + + /* calculate how many bad columns there are */ + nbad = MIN(3, raidz_ncols(rm_bench) - + raidz_parity(rm_bench)); + + getrusage(RUSAGE_THREAD, &start); + for (iter = 0; iter < iter_cnt; iter++) + vdev_raidz_reconstruct(rm_bench, tgt[fn], nbad); + getrusage(RUSAGE_THREAD, &stop); + + elapsed = get_time_diff(&start, &stop); + disksize = (1ULL << ds) / rto_opts.rto_dcols; + d_bw = (double)iter_cnt * (double)(disksize); + d_bw /= (1024.0 * 1024.0 * elapsed); + + LOG(D_ALL, "%10s, %8s, %zu, %10llu, %lf, %lf, %u\n", + impl, + raidz_rec_name[fn], + rto_opts.rto_dcols, + (1ULL<<ds), + d_bw, + d_bw * (double)ncols, + (unsigned) iter_cnt); + + vdev_raidz_map_free(rm_bench); + } + } +} + +void +run_rec_bench(void) +{ + char **impl_name; + + LOG(D_INFO, DBLSEP "\nBenchmarking data reconstruction...\n\n"); + LOG(D_ALL, "impl, math, dcols, iosize, disk_bw, total_bw, iter\n"); + + for (impl_name = (char **)raidz_impl_names; *impl_name != NULL; + impl_name++) { + + if (vdev_raidz_impl_set(*impl_name) != 0) + continue; + + run_rec_bench_impl(*impl_name); + } +} + +void +run_raidz_benchmark(void) +{ + bench_init_raidz_map(); + + run_gen_bench(); + run_rec_bench(); + + bench_fini_raidz_maps(); +} diff --git a/cmd/raidz_test/raidz_test.c b/cmd/raidz_test/raidz_test.c new file mode 100644 index 000000000..e592cf7e8 --- /dev/null +++ b/cmd/raidz_test/raidz_test.c @@ -0,0 +1,770 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright (C) 2016 Gvozden Nešković. All rights reserved. + */ + +#include <sys/zfs_context.h> +#include <sys/time.h> +#include <sys/wait.h> +#include <sys/zio.h> +#include <umem.h> +#include <sys/vdev_raidz.h> +#include <sys/vdev_raidz_impl.h> +#include <assert.h> +#include <stdio.h> +#include "raidz_test.h" + +static int *rand_data; +raidz_test_opts_t rto_opts; + +static char gdb[256]; +static const char gdb_tmpl[] = "gdb -ex \"set pagination 0\" -p %d"; + +static void sig_handler(int signo) +{ + struct sigaction action; + /* + * Restore default action and re-raise signal so SIGSEGV and + * SIGABRT can trigger a core dump. + */ + action.sa_handler = SIG_DFL; + sigemptyset(&action.sa_mask); + action.sa_flags = 0; + (void) sigaction(signo, &action, NULL); + + if (rto_opts.rto_gdb) + if (system(gdb)); + + raise(signo); +} + +static void print_opts(raidz_test_opts_t *opts, boolean_t force) +{ + char *verbose; + switch (opts->rto_v) { + case 0: + verbose = "no"; + break; + case 1: + verbose = "info"; + break; + default: + verbose = "debug"; + break; + } + + if (force || opts->rto_v >= D_INFO) { + (void) fprintf(stdout, DBLSEP "Running with options:\n" + " (-a) zio ashift : %zu\n" + " (-o) zio offset : 1 << %zu\n" + " (-d) number of raidz data columns : %zu\n" + " (-s) size of DATA : 1 << %zu\n" + " (-S) sweep parameters : %s \n" + " (-v) verbose : %s \n\n", + opts->rto_ashift, /* -a */ + ilog2(opts->rto_offset), /* -o */ + opts->rto_dcols, /* -d */ + ilog2(opts->rto_dsize), /* -s */ + opts->rto_sweep ? "yes" : "no", /* -S */ + verbose /* -v */ + ); + } +} + +static void usage(boolean_t requested) +{ + const raidz_test_opts_t *o = &rto_opts_defaults; + + FILE *fp = requested ? stdout : stderr; + + (void) fprintf(fp, "Usage:\n" + "\t[-a zio ashift (default: %zu)]\n" + "\t[-o zio offset, exponent radix 2 (default: %zu)]\n" + "\t[-d number of raidz data columns (default: %zu)]\n" + "\t[-s zio size, exponent radix 2 (default: %zu)]\n" + "\t[-S parameter sweep (default: %s)]\n" + "\t[-t timeout for parameter sweep test]\n" + "\t[-B benchmark all raidz implementations]\n" + "\t[-v increase verbosity (default: %zu)]\n" + "\t[-h (print help)]\n" + "\t[-T test the test, see if failure would be detected]\n" + "\t[-D debug (attach gdb on SIGSEGV)]\n" + "", + o->rto_ashift, /* -a */ + ilog2(o->rto_offset), /* -o */ + o->rto_dcols, /* -d */ + ilog2(o->rto_dsize), /* -s */ + rto_opts.rto_sweep ? "yes" : "no", /* -S */ + o->rto_v /* -d */ + ); + + exit(requested ? 0 : 1); +} + +static void process_options(int argc, char **argv) +{ + size_t value; + int opt; + + raidz_test_opts_t *o = &rto_opts; + + bcopy(&rto_opts_defaults, o, sizeof (*o)); + + while ((opt = getopt(argc, argv, "TDBSvha:o:d:s:t:")) != -1) { + value = 0; + + switch (opt) { + case 'a': + value = strtoull(optarg, NULL, 0); + o->rto_ashift = MIN(13, MAX(9, value)); + break; + case 'o': + value = strtoull(optarg, NULL, 0); + o->rto_offset = ((1ULL << MIN(12, value)) >> 9) << 9; + break; + case 'd': + value = strtoull(optarg, NULL, 0); + o->rto_dcols = MIN(255, MAX(1, value)); + break; + case 's': + value = strtoull(optarg, NULL, 0); + o->rto_dsize = 1ULL << MIN(SPA_MAXBLOCKSHIFT, + MAX(SPA_MINBLOCKSHIFT, value)); + break; + case 't': + value = strtoull(optarg, NULL, 0); + o->rto_sweep_timeout = value; + break; + case 'v': + o->rto_v++; + break; + case 'S': + o->rto_sweep = 1; + break; + case 'B': + o->rto_benchmark = 1; + break; + case 'D': + o->rto_gdb = 1; + break; + case 'T': + o->rto_sanity = 1; + break; + case 'h': + usage(B_TRUE); + break; + case '?': + default: + usage(B_FALSE); + break; + } + } +} + +#define DATA_COL(rm, i) ((rm)->rm_col[raidz_parity(rm) + (i)].rc_data) +#define DATA_COL_SIZE(rm, i) ((rm)->rm_col[raidz_parity(rm) + (i)].rc_size) + +#define CODE_COL(rm, i) ((rm)->rm_col[(i)].rc_data) +#define CODE_COL_SIZE(rm, i) ((rm)->rm_col[(i)].rc_size) + +static int +cmp_code(raidz_test_opts_t *opts, const raidz_map_t *rm, const int parity) +{ + int i, ret = 0; + + VERIFY(parity >= 1 && parity <= 3); + + for (i = 0; i < parity; i++) { + if (0 != memcmp(CODE_COL(rm, i), CODE_COL(opts->rm_golden, i), + CODE_COL_SIZE(rm, i))) { + ret++; + + LOG_OPT(D_DEBUG, opts, + "\nParity block [%d] different!\n", i); + } + } + return (ret); +} + +static int +cmp_data(raidz_test_opts_t *opts, raidz_map_t *rm) +{ + int i, ret = 0; + int dcols = opts->rm_golden->rm_cols - raidz_parity(opts->rm_golden); + + for (i = 0; i < dcols; i++) { + if (0 != memcmp(DATA_COL(opts->rm_golden, i), DATA_COL(rm, i), + DATA_COL_SIZE(opts->rm_golden, i))) { + ret++; + + LOG_OPT(D_DEBUG, opts, + "\nData block [%d] different!\n", i); + } + } + return (ret); +} + +static void +corrupt_colums(raidz_map_t *rm, const int *tgts, const int cnt) +{ + int i; + int *dst; + raidz_col_t *col; + + for (i = 0; i < cnt; i++) { + col = &rm->rm_col[tgts[i]]; + dst = col->rc_data; + for (i = 0; i < col->rc_size / sizeof (int); i++) + dst[i] = rand(); + } +} + +void +init_zio_data(zio_t *zio) +{ + int i; + int *dst = (int *) zio->io_data; + + for (i = 0; i < zio->io_size / sizeof (int); i++) { + dst[i] = rand_data[i]; + } +} + +static void +fini_raidz_map(zio_t **zio, raidz_map_t **rm) +{ + vdev_raidz_map_free(*rm); + raidz_free((*zio)->io_data, (*zio)->io_size); + umem_free(*zio, sizeof (zio_t)); + + *zio = NULL; + *rm = NULL; +} + +static int +init_raidz_golden_map(raidz_test_opts_t *opts, const int parity) +{ + int err = 0; + zio_t *zio_test; + raidz_map_t *rm_test; + const size_t total_ncols = opts->rto_dcols + parity; + + if (opts->rm_golden) { + fini_raidz_map(&opts->zio_golden, &opts->rm_golden); + } + + opts->zio_golden = umem_zalloc(sizeof (zio_t), UMEM_NOFAIL); + zio_test = umem_zalloc(sizeof (zio_t), UMEM_NOFAIL); + + opts->zio_golden->io_offset = zio_test->io_offset = opts->rto_offset; + opts->zio_golden->io_size = zio_test->io_size = opts->rto_dsize; + + opts->zio_golden->io_data = raidz_alloc(opts->rto_dsize); + zio_test->io_data = raidz_alloc(opts->rto_dsize); + + init_zio_data(opts->zio_golden); + init_zio_data(zio_test); + + VERIFY0(vdev_raidz_impl_set("original")); + + opts->rm_golden = vdev_raidz_map_alloc(opts->zio_golden, + opts->rto_ashift, total_ncols, parity); + rm_test = vdev_raidz_map_alloc(zio_test, + opts->rto_ashift, total_ncols, parity); + + VERIFY(opts->zio_golden); + VERIFY(opts->rm_golden); + + vdev_raidz_generate_parity(opts->rm_golden); + vdev_raidz_generate_parity(rm_test); + + /* sanity check */ + err |= cmp_data(opts, rm_test); + err |= cmp_code(opts, rm_test, parity); + + if (err) + ERR("initializing the golden copy ... [FAIL]!\n"); + + /* tear down raidz_map of test zio */ + fini_raidz_map(&zio_test, &rm_test); + + return (err); +} + +static raidz_map_t * +init_raidz_map(raidz_test_opts_t *opts, zio_t **zio, const int parity) +{ + raidz_map_t *rm = NULL; + const size_t alloc_dsize = opts->rto_dsize; + const size_t total_ncols = opts->rto_dcols + parity; + const int ccols[] = { 0, 1, 2 }; + + VERIFY(zio); + VERIFY(parity <= 3 && parity >= 1); + + *zio = umem_zalloc(sizeof (zio_t), UMEM_NOFAIL); + + (*zio)->io_offset = 0; + (*zio)->io_size = alloc_dsize; + (*zio)->io_data = raidz_alloc(alloc_dsize); + init_zio_data(*zio); + + rm = vdev_raidz_map_alloc(*zio, opts->rto_ashift, + total_ncols, parity); + VERIFY(rm); + + /* Make sure code columns are destroyed */ + corrupt_colums(rm, ccols, parity); + + return (rm); +} + +static int +run_gen_check(raidz_test_opts_t *opts) +{ + char **impl_name; + int fn, err = 0; + zio_t *zio_test; + raidz_map_t *rm_test; + + err = init_raidz_golden_map(opts, PARITY_PQR); + if (0 != err) + return (err); + + LOG(D_INFO, DBLSEP); + LOG(D_INFO, "Testing parity generation...\n"); + + for (impl_name = (char **)raidz_impl_names+1; *impl_name != NULL; + impl_name++) { + + LOG(D_INFO, SEP); + LOG(D_INFO, "\tTesting [%s] implementation...", *impl_name); + + if (0 != vdev_raidz_impl_set(*impl_name)) { + LOG(D_INFO, "[SKIP]\n"); + continue; + } else { + LOG(D_INFO, "[SUPPORTED]\n"); + } + + for (fn = 0; fn < RAIDZ_GEN_NUM; fn++) { + + /* create suitable raidz_map */ + rm_test = init_raidz_map(opts, &zio_test, fn+1); + VERIFY(rm_test); + + LOG(D_INFO, "\t\tTesting method [%s] ...", + raidz_gen_name[fn]); + + if (!opts->rto_sanity) + vdev_raidz_generate_parity(rm_test); + + if (cmp_code(opts, rm_test, fn+1) != 0) { + LOG(D_INFO, "[FAIL]\n"); + err++; + } else + LOG(D_INFO, "[PASS]\n"); + + fini_raidz_map(&zio_test, &rm_test); + } + } + + fini_raidz_map(&opts->zio_golden, &opts->rm_golden); + + return (err); +} + +static int +run_rec_check_impl(raidz_test_opts_t *opts, raidz_map_t *rm, const int fn) +{ + int x0, x1, x2; + int tgtidx[3]; + int err = 0; + static const int rec_tgts[7][3] = { + {1, 2, 3}, /* rec_p: bad QR & D[0] */ + {0, 2, 3}, /* rec_q: bad PR & D[0] */ + {0, 1, 3}, /* rec_r: bad PQ & D[0] */ + {2, 3, 4}, /* rec_pq: bad R & D[0][1] */ + {1, 3, 4}, /* rec_pr: bad Q & D[0][1] */ + {0, 3, 4}, /* rec_qr: bad P & D[0][1] */ + {3, 4, 5} /* rec_pqr: bad & D[0][1][2] */ + }; + + memcpy(tgtidx, rec_tgts[fn], sizeof (tgtidx)); + + if (fn < RAIDZ_REC_PQ) { + /* can reconstruct 1 failed data disk */ + for (x0 = 0; x0 < opts->rto_dcols; x0++) { + if (x0 >= rm->rm_cols - raidz_parity(rm)) + continue; + + LOG(D_DEBUG, "[%d] ", x0); + + tgtidx[2] = x0 + raidz_parity(rm); + + corrupt_colums(rm, tgtidx+2, 1); + + if (!opts->rto_sanity) + vdev_raidz_reconstruct(rm, tgtidx, 3); + + if (cmp_data(opts, rm) != 0) { + err++; + LOG(D_DEBUG, "\nREC D[%d]... [FAIL]\n", x0); + } + } + + } else if (fn < RAIDZ_REC_PQR) { + /* can reconstruct 2 failed data disk */ + for (x0 = 0; x0 < opts->rto_dcols; x0++) { + if (x0 >= rm->rm_cols - raidz_parity(rm)) + continue; + for (x1 = x0 + 1; x1 < opts->rto_dcols; x1++) { + if (x1 >= rm->rm_cols - raidz_parity(rm)) + continue; + + LOG(D_DEBUG, "[%d %d] ", x0, x1); + + tgtidx[1] = x0 + raidz_parity(rm); + tgtidx[2] = x1 + raidz_parity(rm); + + corrupt_colums(rm, tgtidx+1, 2); + + if (!opts->rto_sanity) + vdev_raidz_reconstruct(rm, tgtidx, 3); + + if (cmp_data(opts, rm) != 0) { + err++; + LOG(D_DEBUG, "\nREC D[%d %d]... " + "[FAIL]\n", x0, x1); + } + } + } + } else { + /* can reconstruct 3 failed data disk */ + for (x0 = 0; + x0 < opts->rto_dcols; x0++) { + if (x0 >= rm->rm_cols - raidz_parity(rm)) + continue; + for (x1 = x0 + 1; + x1 < opts->rto_dcols; x1++) { + if (x1 >= rm->rm_cols - raidz_parity(rm)) + continue; + for (x2 = x1 + 1; + x2 < opts->rto_dcols; x2++) { + if (x2 >= + rm->rm_cols - raidz_parity(rm)) + continue; + + LOG(D_DEBUG, "[%d %d %d]", x0, x1, x2); + + tgtidx[0] = x0 + raidz_parity(rm); + tgtidx[1] = x1 + raidz_parity(rm); + tgtidx[2] = x2 + raidz_parity(rm); + + corrupt_colums(rm, tgtidx, 3); + + if (!opts->rto_sanity) + vdev_raidz_reconstruct(rm, + tgtidx, 3); + + if (cmp_data(opts, rm) != 0) { + err++; + LOG(D_DEBUG, + "\nREC D[%d %d %d]... " + "[FAIL]\n", x0, x1, x2); + } + } + } + } + } + return (err); +} + +static int +run_rec_check(raidz_test_opts_t *opts) +{ + char **impl_name; + unsigned fn, err = 0; + zio_t *zio_test; + raidz_map_t *rm_test; + + err = init_raidz_golden_map(opts, PARITY_PQR); + if (0 != err) + return (err); + + LOG(D_INFO, DBLSEP); + LOG(D_INFO, "Testing data reconstruction...\n"); + + for (impl_name = (char **)raidz_impl_names+1; *impl_name != NULL; + impl_name++) { + + LOG(D_INFO, SEP); + LOG(D_INFO, "\tTesting [%s] implementation...", *impl_name); + + if (vdev_raidz_impl_set(*impl_name) != 0) { + LOG(D_INFO, "[SKIP]\n"); + continue; + } else + LOG(D_INFO, "[SUPPORTED]\n"); + + + /* create suitable raidz_map */ + rm_test = init_raidz_map(opts, &zio_test, PARITY_PQR); + /* generate parity */ + vdev_raidz_generate_parity(rm_test); + + for (fn = 0; fn < RAIDZ_REC_NUM; fn++) { + + LOG(D_INFO, "\t\tTesting method [%s] ...", + raidz_rec_name[fn]); + + if (run_rec_check_impl(opts, rm_test, fn) != 0) { + LOG(D_INFO, "[FAIL]\n"); + err++; + + } else + LOG(D_INFO, "[PASS]\n"); + + } + /* tear down test raidz_map */ + fini_raidz_map(&zio_test, &rm_test); + } + + fini_raidz_map(&opts->zio_golden, &opts->rm_golden); + + return (err); +} + +static int +run_test(raidz_test_opts_t *opts) +{ + int err = 0; + + if (opts == NULL) + opts = &rto_opts; + + print_opts(opts, B_FALSE); + + err |= run_gen_check(opts); + err |= run_rec_check(opts); + + return (err); +} + +#define SWEEP_RUNNING 0 +#define SWEEP_FINISHED 1 +#define SWEEP_ERROR 2 +#define SWEEP_TIMEOUT 3 + +static int sweep_state = 0; +static raidz_test_opts_t failed_opts; + +static kmutex_t sem_mtx; +static kcondvar_t sem_cv; +static int max_free_slots; +static int free_slots; + +static void +sweep_thread(void *arg) +{ + int err = 0; + raidz_test_opts_t *opts = (raidz_test_opts_t *) arg; + VERIFY(opts != NULL); + + err = run_test(opts); + + if (rto_opts.rto_sanity) { + /* 25% chance that a sweep test fails */ + if (rand() < (RAND_MAX/4)) + err = 1; + } + + if (0 != err) { + mutex_enter(&sem_mtx); + memcpy(&failed_opts, opts, sizeof (raidz_test_opts_t)); + sweep_state = SWEEP_ERROR; + mutex_exit(&sem_mtx); + } + + umem_free(opts, sizeof (raidz_test_opts_t)); + + /* signal the next thread */ + mutex_enter(&sem_mtx); + free_slots++; + cv_signal(&sem_cv); + mutex_exit(&sem_mtx); + + thread_exit(); +} + +static int +run_sweep(void) +{ + static const size_t dcols_v[] = { 1, 2, 3, 4, 5, 6, 7, 8 }; + static const size_t ashift_v[] = { 9, 12 }; + static const size_t offset_cnt = 4; + static const size_t size_v[] = { 1 << 9, 21 * (1 << 9), 13 * (1 << 12), + 1 << 17, (1 << 20) - (1 << 12), SPA_MAXBLOCKSIZE }; + + (void) setvbuf(stdout, NULL, _IONBF, 0); + + ulong_t total_comb = ARRAY_SIZE(size_v) * ARRAY_SIZE(ashift_v) * + ARRAY_SIZE(dcols_v) * offset_cnt; + ulong_t tried_comb = 0; + hrtime_t time_diff, start_time = gethrtime(); + raidz_test_opts_t *opts; + int a, d, o, s; + + max_free_slots = free_slots = MAX(2, boot_ncpus); + + mutex_init(&sem_mtx, NULL, MUTEX_DEFAULT, NULL); + cv_init(&sem_cv, NULL, CV_DEFAULT, NULL); + + for (s = 0; s < ARRAY_SIZE(size_v); s++) + for (a = 0; a < ARRAY_SIZE(ashift_v); a++) + for (o = 0; o < offset_cnt; o++) + for (d = 0; d < ARRAY_SIZE(dcols_v); d++) { + + if ((size_v[s] < (1 << ashift_v[a]) * o) || + (size_v[s] < (1 << ashift_v[a]) * dcols_v[d])) { + total_comb--; + continue; + } + + if (++tried_comb % 20 == 0) + LOG(D_ALL, "%lu/%lu... ", tried_comb, total_comb); + + /* wait for signal to start new thread */ + mutex_enter(&sem_mtx); + while (cv_timedwait_sig(&sem_cv, &sem_mtx, + ddi_get_lbolt() + hz)) { + + /* check if should stop the test (timeout) */ + time_diff = (gethrtime() - start_time) / NANOSEC; + if (rto_opts.rto_sweep_timeout > 0 && + time_diff >= rto_opts.rto_sweep_timeout) { + sweep_state = SWEEP_TIMEOUT; + mutex_exit(&sem_mtx); + goto exit; + } + + /* check if should stop the test (error) */ + if (sweep_state != SWEEP_RUNNING) { + mutex_exit(&sem_mtx); + goto exit; + } + + /* exit loop if a slot is available */ + if (free_slots > 0) { + break; + } + } + + free_slots--; + mutex_exit(&sem_mtx); + + opts = umem_zalloc(sizeof (raidz_test_opts_t), UMEM_NOFAIL); + opts->rto_ashift = ashift_v[a]; + opts->rto_dcols = dcols_v[d]; + opts->rto_offset = (1 << ashift_v[a]) * o; + opts->rto_dsize = size_v[s]; + opts->rto_v = 0; /* be quiet */ + + VERIFY3P(zk_thread_create(NULL, 0, + (thread_func_t) sweep_thread, + (void *) opts, TS_RUN, NULL, 0, 0, + PTHREAD_CREATE_JOINABLE), !=, NULL); + } + +exit: + LOG(D_ALL, "\nWaiting for test threads to finish...\n"); + mutex_enter(&sem_mtx); + VERIFY(free_slots <= max_free_slots); + while (free_slots < max_free_slots) { + (void) cv_wait(&sem_cv, &sem_mtx); + } + mutex_exit(&sem_mtx); + + if (sweep_state == SWEEP_ERROR) { + ERR("Sweep test failed! Failed option: \n"); + print_opts(&failed_opts, B_TRUE); + } else { + if (sweep_state == SWEEP_TIMEOUT) + LOG(D_ALL, "Test timeout (%lus). Stopping...\n", + (ulong_t)rto_opts.rto_sweep_timeout); + + LOG(D_ALL, "Sweep test succeeded on %lu raidz maps!\n", + (ulong_t)tried_comb); + } + + return (sweep_state == SWEEP_ERROR ? SWEEP_ERROR : 0); +} + +int +main(int argc, char **argv) +{ + size_t i; + struct sigaction action; + int err = 0; + + /* init gdb string early */ + (void) sprintf(gdb, gdb_tmpl, getpid()); + + action.sa_handler = sig_handler; + sigemptyset(&action.sa_mask); + action.sa_flags = 0; + + if (sigaction(SIGSEGV, &action, NULL) < 0) { + ERR("raidz_test: cannot catch SIGSEGV: %s.\n", strerror(errno)); + exit(EXIT_FAILURE); + } + + (void) setvbuf(stdout, NULL, _IOLBF, 0); + + dprintf_setup(&argc, argv); + + process_options(argc, argv); + + kernel_init(FREAD); + + /* setup random data because rand() is not reentrant */ + rand_data = (int *) umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); + srand((unsigned)time(NULL) * getpid()); + for (i = 0; i < SPA_MAXBLOCKSIZE / sizeof (int); i++) + rand_data[i] = rand(); + + mprotect(rand_data, SPA_MAXBLOCKSIZE, PROT_READ); + + if (rto_opts.rto_benchmark) { + run_raidz_benchmark(); + } else if (rto_opts.rto_sweep) { + err = run_sweep(); + } else { + err = run_test(NULL); + } + + umem_free(rand_data, SPA_MAXBLOCKSIZE); + kernel_fini(); + + return (err); +} diff --git a/cmd/raidz_test/raidz_test.h b/cmd/raidz_test/raidz_test.h new file mode 100644 index 000000000..8eccc43ca --- /dev/null +++ b/cmd/raidz_test/raidz_test.h @@ -0,0 +1,106 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright (C) 2016 Gvozden Nešković. All rights reserved. + */ + +#ifndef RAIDZ_TEST_H +#define RAIDZ_TEST_H + +#include <sys/spa.h> + +static const char *raidz_impl_names[] = { + "original", + "scalar", + "sse", + "avx2", + NULL +}; + +typedef struct raidz_test_opts { + size_t rto_ashift; + size_t rto_offset; + size_t rto_dcols; + size_t rto_dsize; + size_t rto_v; + size_t rto_sweep; + size_t rto_sweep_timeout; + size_t rto_benchmark; + size_t rto_sanity; + size_t rto_gdb; + + zio_t *zio_golden; + raidz_map_t *rm_golden; +} raidz_test_opts_t; + +static const raidz_test_opts_t rto_opts_defaults = { + .rto_ashift = 9, + .rto_offset = 1ULL << 0, + .rto_dcols = 8, + .rto_dsize = 1<<19, + .rto_v = 0, + .rto_sweep = 0, + .rto_benchmark = 0, + .rto_sanity = 0, + .rto_gdb = 0 +}; + +extern raidz_test_opts_t rto_opts; + +static inline size_t ilog2(size_t a) +{ + return (a > 1 ? 1 + ilog2(a >> 1) : 0); +} + + +#define D_ALL 0 +#define D_INFO 1 +#define D_DEBUG 2 + +#define LOG(lvl, a...) \ +{ \ + if (rto_opts.rto_v >= lvl) \ + (void) fprintf(stdout, a); \ +} \ + +#define LOG_OPT(lvl, opt, a...) \ +{ \ + if (opt->rto_v >= lvl) \ + (void) fprintf(stdout, a); \ +} \ + +#define ERR(a...) (void) fprintf(stderr, a) + + +#define DBLSEP "================\n" +#define SEP "----------------\n" + + +#define raidz_alloc(size) zio_data_buf_alloc(size) +#define raidz_free(p, size) zio_data_buf_free(p, size) + + +void init_zio_data(zio_t *zio); + +void run_raidz_benchmark(void); + +#endif /* RAIDZ_TEST_H */ diff --git a/configure.ac b/configure.ac index ce0808972..99c25bc27 100644 --- a/configure.ac +++ b/configure.ac @@ -111,6 +111,7 @@ AC_CONFIG_FILES([ cmd/dbufstat/Makefile cmd/arc_summary/Makefile cmd/zed/Makefile + cmd/raidz_test/Makefile contrib/Makefile contrib/bash_completion.d/Makefile contrib/dracut/Makefile @@ -250,6 +251,7 @@ AC_CONFIG_FILES([ tests/zfs-tests/tests/functional/poolversion/Makefile tests/zfs-tests/tests/functional/privilege/Makefile tests/zfs-tests/tests/functional/quota/Makefile + tests/zfs-tests/tests/functional/raidz/Makefile tests/zfs-tests/tests/functional/redundancy/Makefile tests/zfs-tests/tests/functional/refquota/Makefile tests/zfs-tests/tests/functional/refreserv/Makefile diff --git a/include/sys/Makefile.am b/include/sys/Makefile.am index 25e74af18..522492836 100644 --- a/include/sys/Makefile.am +++ b/include/sys/Makefile.am @@ -78,6 +78,8 @@ COMMON_H = \ $(top_srcdir)/include/sys/vdev_file.h \ $(top_srcdir)/include/sys/vdev.h \ $(top_srcdir)/include/sys/vdev_impl.h \ + $(top_srcdir)/include/sys/vdev_raidz.h \ + $(top_srcdir)/include/sys/vdev_raidz_impl.h \ $(top_srcdir)/include/sys/xvattr.h \ $(top_srcdir)/include/sys/zap.h \ $(top_srcdir)/include/sys/zap_impl.h \ diff --git a/include/sys/vdev_raidz.h b/include/sys/vdev_raidz.h new file mode 100644 index 000000000..d0c682ee4 --- /dev/null +++ b/include/sys/vdev_raidz.h @@ -0,0 +1,64 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (C) 2016 Gvozden Neskovic <[email protected]>. + */ + +#ifndef _SYS_VDEV_RAIDZ_H +#define _SYS_VDEV_RAIDZ_H + +#include <sys/types.h> + +#ifdef __cplusplus +extern "C" { +#endif + +struct zio; +struct raidz_map; +#if !defined(_KERNEL) +struct kernel_param {}; +#endif + +/* + * vdev_raidz interface + */ +struct raidz_map * vdev_raidz_map_alloc(struct zio *, uint64_t, uint64_t, + uint64_t); +void vdev_raidz_map_free(struct raidz_map *); +void vdev_raidz_generate_parity(struct raidz_map *); +int vdev_raidz_reconstruct(struct raidz_map *, const int *, int); + +/* + * vdev_raidz_math interface + */ +void vdev_raidz_math_init(void); +void vdev_raidz_math_fini(void); +void vdev_raidz_math_get_ops(struct raidz_map *); +void vdev_raidz_math_generate(struct raidz_map *); +int vdev_raidz_math_reconstruct(struct raidz_map *, const int *, + const int *, const int); +int vdev_raidz_impl_set(const char *); + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_VDEV_RAIDZ_H */ diff --git a/include/sys/vdev_raidz_impl.h b/include/sys/vdev_raidz_impl.h new file mode 100644 index 000000000..dd411aa88 --- /dev/null +++ b/include/sys/vdev_raidz_impl.h @@ -0,0 +1,344 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (C) 2016 Gvozden Nešković. All rights reserved. + */ + +#ifndef _VDEV_RAIDZ_H +#define _VDEV_RAIDZ_H + +#include <sys/types.h> +#include <sys/debug.h> +#include <sys/kstat.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#define CODE_P (0U) +#define CODE_Q (1U) +#define CODE_R (2U) + +#define PARITY_P (1U) +#define PARITY_PQ (2U) +#define PARITY_PQR (3U) + +#define TARGET_X (0U) +#define TARGET_Y (1U) +#define TARGET_Z (2U) + +/* + * Parity generation methods indexes + */ +enum raidz_math_gen_op { + RAIDZ_GEN_P = 0, + RAIDZ_GEN_PQ, + RAIDZ_GEN_PQR, + RAIDZ_GEN_NUM = 3 +}; +/* + * Data reconstruction methods indexes + */ +enum raidz_rec_op { + RAIDZ_REC_P = 0, + RAIDZ_REC_Q, + RAIDZ_REC_R, + RAIDZ_REC_PQ, + RAIDZ_REC_PR, + RAIDZ_REC_QR, + RAIDZ_REC_PQR, + RAIDZ_REC_NUM = 7 +}; + +extern const char *raidz_gen_name[RAIDZ_GEN_NUM]; +extern const char *raidz_rec_name[RAIDZ_REC_NUM]; + +/* + * Methods used to define raidz implementation + * + * @raidz_gen_f Parity generation function + * @par1 pointer to raidz_map + * @raidz_rec_f Data reconstruction function + * @par1 pointer to raidz_map + * @par2 array of reconstruction targets + * @will_work_f Function returns TRUE if impl. is supported on the system + * @init_impl_f Function is called once on init + * @fini_impl_f Function is called once on fini + */ +typedef void (*raidz_gen_f)(void *); +typedef int (*raidz_rec_f)(void *, const int *); +typedef boolean_t (*will_work_f)(void); +typedef void (*init_impl_f)(void); +typedef void (*fini_impl_f)(void); + +typedef struct raidz_impl_ops { + init_impl_f init; + fini_impl_f fini; + raidz_gen_f gen[RAIDZ_GEN_NUM]; /* Parity generate functions */ + raidz_rec_f rec[RAIDZ_REC_NUM]; /* Data reconstruction functions */ + will_work_f is_supported; /* Support check function */ + char *name; /* Name of the implementation */ +} raidz_impl_ops_t; + +typedef struct raidz_col { + size_t rc_devidx; /* child device index for I/O */ + size_t rc_offset; /* device offset */ + size_t rc_size; /* I/O size */ + void *rc_data; /* I/O data */ + void *rc_gdata; /* used to store the "good" version */ + int rc_error; /* I/O error for this device */ + unsigned int rc_tried; /* Did we attempt this I/O column? */ + unsigned int rc_skipped; /* Did we skip this I/O column? */ +} raidz_col_t; + +typedef struct raidz_map { + size_t rm_cols; /* Regular column count */ + size_t rm_scols; /* Count including skipped columns */ + size_t rm_bigcols; /* Number of oversized columns */ + size_t rm_asize; /* Actual total I/O size */ + size_t rm_missingdata; /* Count of missing data devices */ + size_t rm_missingparity; /* Count of missing parity devices */ + size_t rm_firstdatacol; /* First data column/parity count */ + size_t rm_nskip; /* Skipped sectors for padding */ + size_t rm_skipstart; /* Column index of padding start */ + void *rm_datacopy; /* rm_asize-buffer of copied data */ + size_t rm_reports; /* # of referencing checksum reports */ + unsigned int rm_freed; /* map no longer has referencing ZIO */ + unsigned int rm_ecksuminjected; /* checksum error was injected */ + raidz_impl_ops_t *rm_ops; /* RAIDZ math operations */ + raidz_col_t rm_col[1]; /* Flexible array of I/O columns */ +} raidz_map_t; + +/* + * Commonly used raidz_map helpers + * + * raidz_parity Returns parity of the RAIDZ block + * raidz_ncols Returns number of columns the block spans + * raidz_nbigcols Returns number of big columns columns + * raidz_col_p Returns pointer to a column + * raidz_col_size Returns size of a column + * raidz_big_size Returns size of big columns + * raidz_short_size Returns size of short columns + */ +#define raidz_parity(rm) ((rm)->rm_firstdatacol) +#define raidz_ncols(rm) ((rm)->rm_cols) +#define raidz_nbigcols(rm) ((rm)->rm_bigcols) +#define raidz_col_p(rm, c) ((rm)->rm_col + (c)) +#define raidz_col_size(rm, c) ((rm)->rm_col[c].rc_size) +#define raidz_big_size(rm) (raidz_col_size(rm, CODE_P)) +#define raidz_short_size(rm) (raidz_col_size(rm, raidz_ncols(rm)-1)) + +/* + * Macro defines an RAIDZ parity generation method + * + * @code parity the function produce + * @impl name of the implementation + */ +#define _RAIDZ_GEN_WRAP(code, impl) \ +static void \ +impl ## _gen_ ## code(void *rmp) \ +{ \ + raidz_map_t *rm = (raidz_map_t *) rmp; \ + raidz_generate_## code ## _impl(rm); \ +} + +/* + * Macro defines an RAIDZ data reconstruction method + * + * @code parity the function produce + * @impl name of the implementation + */ +#define _RAIDZ_REC_WRAP(code, impl) \ +static int \ +impl ## _rec_ ## code(void *rmp, const int *tgtidx) \ +{ \ + raidz_map_t *rm = (raidz_map_t *) rmp; \ + return (raidz_reconstruct_## code ## _impl(rm, tgtidx)); \ +} + +/* + * Define all gen methods for an implementation + * + * @impl name of the implementation + */ +#define DEFINE_GEN_METHODS(impl) \ + _RAIDZ_GEN_WRAP(p, impl); \ + _RAIDZ_GEN_WRAP(pq, impl); \ + _RAIDZ_GEN_WRAP(pqr, impl) + +/* + * Define all rec functions for an implementation + * + * @impl name of the implementation + */ +#define DEFINE_REC_METHODS(impl) \ + _RAIDZ_REC_WRAP(p, impl); \ + _RAIDZ_REC_WRAP(q, impl); \ + _RAIDZ_REC_WRAP(r, impl); \ + _RAIDZ_REC_WRAP(pq, impl); \ + _RAIDZ_REC_WRAP(pr, impl); \ + _RAIDZ_REC_WRAP(qr, impl); \ + _RAIDZ_REC_WRAP(pqr, impl) + +#define RAIDZ_GEN_METHODS(impl) \ +{ \ + [RAIDZ_GEN_P] = & impl ## _gen_p, \ + [RAIDZ_GEN_PQ] = & impl ## _gen_pq, \ + [RAIDZ_GEN_PQR] = & impl ## _gen_pqr \ +} + +#define RAIDZ_REC_METHODS(impl) \ +{ \ + [RAIDZ_REC_P] = & impl ## _rec_p, \ + [RAIDZ_REC_Q] = & impl ## _rec_q, \ + [RAIDZ_REC_R] = & impl ## _rec_r, \ + [RAIDZ_REC_PQ] = & impl ## _rec_pq, \ + [RAIDZ_REC_PR] = & impl ## _rec_pr, \ + [RAIDZ_REC_QR] = & impl ## _rec_qr, \ + [RAIDZ_REC_PQR] = & impl ## _rec_pqr \ +} + + +typedef struct raidz_impl_kstat { + kstat_named_t gen[RAIDZ_GEN_NUM]; /* gen method speed kiB/s */ + kstat_named_t rec[RAIDZ_REC_NUM]; /* rec method speed kiB/s */ +} raidz_impl_kstat_t; + +/* + * Enumerate various multiplication constants + * used in reconstruction methods + */ +typedef enum raidz_mul_info { + /* Reconstruct Q */ + MUL_Q_X = 0, + /* Reconstruct R */ + MUL_R_X = 0, + /* Reconstruct PQ */ + MUL_PQ_X = 0, + MUL_PQ_Y = 1, + /* Reconstruct PR */ + MUL_PR_X = 0, + MUL_PR_Y = 1, + /* Reconstruct QR */ + MUL_QR_XQ = 0, + MUL_QR_X = 1, + MUL_QR_YQ = 2, + MUL_QR_Y = 3, + /* Reconstruct PQR */ + MUL_PQR_XP = 0, + MUL_PQR_XQ = 1, + MUL_PQR_XR = 2, + MUL_PQR_YU = 3, + MUL_PQR_YP = 4, + MUL_PQR_YQ = 5, + + MUL_CNT = 6 +} raidz_mul_info_t; + +/* + * Powers of 2 in the Galois field. + */ +extern const uint8_t vdev_raidz_pow2[256] __attribute__((aligned(256))); +/* Logs of 2 in the Galois field defined above. */ +extern const uint8_t vdev_raidz_log2[256] __attribute__((aligned(256))); + +/* + * Multiply a given number by 2 raised to the given power. + */ +static inline uint8_t +vdev_raidz_exp2(const uint8_t a, const unsigned exp) +{ + if (a == 0) + return (0); + + return (vdev_raidz_pow2[(exp + (unsigned) vdev_raidz_log2[a]) % 255]); +} + +/* + * Galois Field operations. + * + * gf_exp2 - computes 2 raised to the given power + * gf_exp2 - computes 4 raised to the given power + * gf_mul - multiplication + * gf_div - division + * gf_inv - multiplicative inverse + */ +typedef unsigned gf_t; +typedef unsigned gf_log_t; + +static inline gf_t +gf_mul(const gf_t a, const gf_t b) +{ + gf_log_t logsum; + + if (a == 0 || b == 0) + return (0); + + logsum = (gf_log_t) vdev_raidz_log2[a] + (gf_log_t) vdev_raidz_log2[b]; + + return ((gf_t) vdev_raidz_pow2[logsum % 255]); +} + +static inline gf_t +gf_div(const gf_t a, const gf_t b) +{ + gf_log_t logsum; + + ASSERT3U(b, >, 0); + if (a == 0) + return (0); + + logsum = (gf_log_t) 255 + (gf_log_t) vdev_raidz_log2[a] - + (gf_log_t) vdev_raidz_log2[b]; + + return ((gf_t) vdev_raidz_pow2[logsum % 255]); +} + +static inline gf_t +gf_inv(const gf_t a) +{ + gf_log_t logsum; + + ASSERT3U(a, >, 0); + + logsum = (gf_log_t) 255 - (gf_log_t) vdev_raidz_log2[a]; + + return ((gf_t) vdev_raidz_pow2[logsum]); +} + +static inline gf_t +gf_exp2(gf_log_t exp) +{ + return (vdev_raidz_pow2[exp % 255]); +} + +static inline gf_t +gf_exp4(gf_log_t exp) +{ + ASSERT3U(exp, <=, 255); + return ((gf_t) vdev_raidz_pow2[(2 * exp) % 255]); +} + +#ifdef __cplusplus +} +#endif + +#endif /* _VDEV_RAIDZ_H */ diff --git a/lib/libzpool/Makefile.am b/lib/libzpool/Makefile.am index f2bd580b8..e08a6ea64 100644 --- a/lib/libzpool/Makefile.am +++ b/lib/libzpool/Makefile.am @@ -92,6 +92,10 @@ KERNEL_C = \ vdev_missing.c \ vdev_queue.c \ vdev_raidz.c \ + vdev_raidz_math.c \ + vdev_raidz_math_scalar.c \ + vdev_raidz_math_sse.c \ + vdev_raidz_math_avx2.c \ vdev_root.c \ zap.c \ zap_leaf.c \ diff --git a/man/man1/Makefile.am b/man/man1/Makefile.am index 113cd0d80..5f18d1ed6 100644 --- a/man/man1/Makefile.am +++ b/man/man1/Makefile.am @@ -1,4 +1,4 @@ -dist_man_MANS = zhack.1 zpios.1 ztest.1 +dist_man_MANS = zhack.1 zpios.1 ztest.1 raidz_test.1 EXTRA_DIST = cstyle.1 install-data-local: diff --git a/man/man1/raidz_test.1 b/man/man1/raidz_test.1 new file mode 100644 index 000000000..90d858d5b --- /dev/null +++ b/man/man1/raidz_test.1 @@ -0,0 +1,97 @@ +'\" t +.\" +.\" CDDL HEADER START +.\" +.\" The contents of this file are subject to the terms of the +.\" Common Development and Distribution License (the "License"). +.\" You may not use this file except in compliance with the License. +.\" +.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE +.\" or http://www.opensolaris.org/os/licensing. +.\" See the License for the specific language governing permissions +.\" and limitations under the License. +.\" +.\" When distributing Covered Code, include this CDDL HEADER in each +.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE. +.\" If applicable, add the following below this CDDL HEADER, with the +.\" fields enclosed by brackets "[]" replaced with your own identifying +.\" information: Portions Copyright [yyyy] [name of copyright owner] +.\" +.\" CDDL HEADER END +.\" +.\" +.\" Copyright (c) 2016 Gvozden Nešković. All rights reserved. +.\" +.TH raidz_test 1 "2016" "ZFS on Linux" "User Commands" + +.SH NAME +\fBraidz_test\fR \- raidz implementation verification and bencmarking tool +.SH SYNOPSIS +.LP +.BI "raidz_test <options>" +.SH DESCRIPTION +.LP +This manual page documents briefly the \fBraidz_test\fR command. +.LP +Purpose of this tool is to run all supported raidz implementation and verify +results of all methods. Tool also contains a parameter sweep option where all +parameters affecting RAIDZ block are verified (like ashift size, data offset, +data size, etc...). +The tool also supports a benchmarking mode using -B option. +.SH OPTION +.HP +.BI "\-h" "" +.IP +Print a help summary. +.HP +.BI "\-a" " ashift (default: 9)" +.IP +Ashift value. +.HP +.BI "\-o" " zio_off_shift" " (default: 0)" +.IP +Zio offset for raidz block. Offset value is 1 << (zio_off_shift) +.HP +.BI "\-d" " raidz_data_disks" " (default: 8)" +.IP +Number of raidz data disks to use. Additional disks for parity will be used +during testing. +.HP +.BI "\-s" " zio_size_shift" " (default: 19)" +.IP +Size of data for raidz block. Size is 1 << (zio_size_shift). +.HP +.BI "\-S(weep)" +.IP +Sweep parameter space while verifying the raidz implementations. This option +will exhaust all most of valid values for -a -o -d -s options. Runtime using +this option will be long. +.HP +.BI "\-t(imeout)" +.IP +Wall time for sweep test in seconds. The actual runtime could be longer. +.HP +.BI "\-B(enchmark)" +.IP +This options starts the benchmark mode. All implementations are benchmarked +using increasing per disk data size. Results are given as throughput per disk, +measured in MiB/s. +.HP +.BI "\-v(erbose)" +.IP +Increase verbosity. +.HP +.BI "\-T(est the test)" +.IP +Debugging option. When this option is specified tool is supposed to fail +all tests. This is to check if tests would properly verify bit-exactness. +.HP +.BI "\-D(ebug)" +.IP +Debugging option. Specify to attach gdb when SIGSEGV or SIGABRT are received. +.HP + +.SH "SEE ALSO" +.BR "ztest (1)" +.SH "AUTHORS" +vdev_raidz, created for ZFS on Linux by Gvozden Nešković <[email protected]> diff --git a/man/man5/zfs-module-parameters.5 b/man/man5/zfs-module-parameters.5 index 664a806c0..e8c363eba 100644 --- a/man/man5/zfs-module-parameters.5 +++ b/man/man5/zfs-module-parameters.5 @@ -1677,6 +1677,33 @@ Default value: \fB4,096\fR. .sp .ne 2 .na +\fBzfs_vdev_raidz_impl\fR (string) +.ad +.RS 12n +Parameter for selecting raidz implementation to use. + +Options marked (always) below may be selected on module load as they are +supported on all systems. +The remaining options may only be set after the module is loaded, as they +are available only if the implementations are compiled in and supported +on the running system. + +Once the module is loaded, the content of +/sys/module/zfs/parameters/zfs_vdev_raidz_impl will show available options +with the currently selected one enclosed in []. +Possible options are: + fastest - (always) implementation selected using built-in benchmark + original - (always) original raidz implementation + scalar - (always) scalar raidz implementation + sse - implementation using SSE instruction set (64bit x86 only) + avx2 - implementation using AVX2 instruction set (64bit x86 only) +.sp +Default value: \fBfastest\fR. +.RE + +.sp +.ne 2 +.na \fBzfs_zevent_cols\fR (int) .ad .RS 12n @@ -1739,7 +1766,7 @@ Default value: \fB1,048,576\fR. .ad .RS 12n A zevent will be logged if a ZIO operation takes more than N milliseconds to -complete. Note that this is only a logging facility, not a timeout on +complete. Note that this is only a logging facility, not a timeout on operations. .sp Default value: \fB30,000\fR. diff --git a/module/zfs/Makefile.in b/module/zfs/Makefile.in index 33f923ffd..8a5d2c1a9 100644 --- a/module/zfs/Makefile.in +++ b/module/zfs/Makefile.in @@ -71,6 +71,8 @@ $(MODULE)-objs += vdev_mirror.o $(MODULE)-objs += vdev_missing.o $(MODULE)-objs += vdev_queue.o $(MODULE)-objs += vdev_raidz.o +$(MODULE)-objs += vdev_raidz_math.o +$(MODULE)-objs += vdev_raidz_math_scalar.o $(MODULE)-objs += vdev_root.o $(MODULE)-objs += zap.o $(MODULE)-objs += zap_leaf.o @@ -109,3 +111,6 @@ $(MODULE)-objs += zrlock.o $(MODULE)-objs += zvol.o $(MODULE)-objs += dsl_destroy.o $(MODULE)-objs += dsl_userhold.o + +$(MODULE)-$(CONFIG_X86) += vdev_raidz_math_sse.o +$(MODULE)-$(CONFIG_X86) += vdev_raidz_math_avx2.o diff --git a/module/zfs/spa_misc.c b/module/zfs/spa_misc.c index 6f2ba52f4..e3e7e36fe 100644 --- a/module/zfs/spa_misc.c +++ b/module/zfs/spa_misc.c @@ -36,6 +36,7 @@ #include <sys/zil.h> #include <sys/vdev_impl.h> #include <sys/vdev_file.h> +#include <sys/vdev_raidz.h> #include <sys/metaslab.h> #include <sys/uberblock_impl.h> #include <sys/txg.h> @@ -1831,6 +1832,7 @@ spa_init(int mode) dmu_init(); zil_init(); vdev_cache_stat_init(); + vdev_raidz_math_init(); zfs_prop_init(); zpool_prop_init(); zpool_feature_init(); @@ -1846,6 +1848,7 @@ spa_fini(void) spa_evict_all(); vdev_cache_stat_fini(); + vdev_raidz_math_fini(); zil_fini(); dmu_fini(); zio_fini(); diff --git a/module/zfs/vdev_raidz.c b/module/zfs/vdev_raidz.c index b9479092c..7f17d18b6 100644 --- a/module/zfs/vdev_raidz.c +++ b/module/zfs/vdev_raidz.c @@ -22,6 +22,7 @@ /* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2012, 2014 by Delphix. All rights reserved. + * Copyright (c) 2016 Gvozden Nešković. All rights reserved. */ #include <sys/zfs_context.h> @@ -31,6 +32,8 @@ #include <sys/zio_checksum.h> #include <sys/fs/zfs.h> #include <sys/fm/fs/zfs.h> +#include <sys/vdev_raidz.h> +#include <sys/vdev_raidz_impl.h> /* * Virtual device vector for RAID-Z. @@ -99,34 +102,6 @@ * or in concert to recover missing data columns. */ -typedef struct raidz_col { - uint64_t rc_devidx; /* child device index for I/O */ - uint64_t rc_offset; /* device offset */ - uint64_t rc_size; /* I/O size */ - void *rc_data; /* I/O data */ - void *rc_gdata; /* used to store the "good" version */ - int rc_error; /* I/O error for this device */ - uint8_t rc_tried; /* Did we attempt this I/O column? */ - uint8_t rc_skipped; /* Did we skip this I/O column? */ -} raidz_col_t; - -typedef struct raidz_map { - uint64_t rm_cols; /* Regular column count */ - uint64_t rm_scols; /* Count including skipped columns */ - uint64_t rm_bigcols; /* Number of oversized columns */ - uint64_t rm_asize; /* Actual total I/O size */ - uint64_t rm_missingdata; /* Count of missing data devices */ - uint64_t rm_missingparity; /* Count of missing parity devices */ - uint64_t rm_firstdatacol; /* First data column/parity count */ - uint64_t rm_nskip; /* Skipped sectors for padding */ - uint64_t rm_skipstart; /* Column index of padding start */ - void *rm_datacopy; /* rm_asize-buffer of copied data */ - uintptr_t rm_reports; /* # of referencing checksum reports */ - uint8_t rm_freed; /* map no longer has referencing ZIO */ - uint8_t rm_ecksuminjected; /* checksum error was injected */ - raidz_col_t rm_col[1]; /* Flexible array of I/O columns */ -} raidz_map_t; - #define VDEV_RAIDZ_P 0 #define VDEV_RAIDZ_Q 1 #define VDEV_RAIDZ_R 2 @@ -154,104 +129,7 @@ typedef struct raidz_map { VDEV_RAIDZ_64MUL_2((x), mask); \ } -/* - * Force reconstruction to use the general purpose method. - */ -int vdev_raidz_default_to_general; - -/* Powers of 2 in the Galois field defined above. */ -static const uint8_t vdev_raidz_pow2[256] = { - 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, - 0x1d, 0x3a, 0x74, 0xe8, 0xcd, 0x87, 0x13, 0x26, - 0x4c, 0x98, 0x2d, 0x5a, 0xb4, 0x75, 0xea, 0xc9, - 0x8f, 0x03, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, - 0x9d, 0x27, 0x4e, 0x9c, 0x25, 0x4a, 0x94, 0x35, - 0x6a, 0xd4, 0xb5, 0x77, 0xee, 0xc1, 0x9f, 0x23, - 0x46, 0x8c, 0x05, 0x0a, 0x14, 0x28, 0x50, 0xa0, - 0x5d, 0xba, 0x69, 0xd2, 0xb9, 0x6f, 0xde, 0xa1, - 0x5f, 0xbe, 0x61, 0xc2, 0x99, 0x2f, 0x5e, 0xbc, - 0x65, 0xca, 0x89, 0x0f, 0x1e, 0x3c, 0x78, 0xf0, - 0xfd, 0xe7, 0xd3, 0xbb, 0x6b, 0xd6, 0xb1, 0x7f, - 0xfe, 0xe1, 0xdf, 0xa3, 0x5b, 0xb6, 0x71, 0xe2, - 0xd9, 0xaf, 0x43, 0x86, 0x11, 0x22, 0x44, 0x88, - 0x0d, 0x1a, 0x34, 0x68, 0xd0, 0xbd, 0x67, 0xce, - 0x81, 0x1f, 0x3e, 0x7c, 0xf8, 0xed, 0xc7, 0x93, - 0x3b, 0x76, 0xec, 0xc5, 0x97, 0x33, 0x66, 0xcc, - 0x85, 0x17, 0x2e, 0x5c, 0xb8, 0x6d, 0xda, 0xa9, - 0x4f, 0x9e, 0x21, 0x42, 0x84, 0x15, 0x2a, 0x54, - 0xa8, 0x4d, 0x9a, 0x29, 0x52, 0xa4, 0x55, 0xaa, - 0x49, 0x92, 0x39, 0x72, 0xe4, 0xd5, 0xb7, 0x73, - 0xe6, 0xd1, 0xbf, 0x63, 0xc6, 0x91, 0x3f, 0x7e, - 0xfc, 0xe5, 0xd7, 0xb3, 0x7b, 0xf6, 0xf1, 0xff, - 0xe3, 0xdb, 0xab, 0x4b, 0x96, 0x31, 0x62, 0xc4, - 0x95, 0x37, 0x6e, 0xdc, 0xa5, 0x57, 0xae, 0x41, - 0x82, 0x19, 0x32, 0x64, 0xc8, 0x8d, 0x07, 0x0e, - 0x1c, 0x38, 0x70, 0xe0, 0xdd, 0xa7, 0x53, 0xa6, - 0x51, 0xa2, 0x59, 0xb2, 0x79, 0xf2, 0xf9, 0xef, - 0xc3, 0x9b, 0x2b, 0x56, 0xac, 0x45, 0x8a, 0x09, - 0x12, 0x24, 0x48, 0x90, 0x3d, 0x7a, 0xf4, 0xf5, - 0xf7, 0xf3, 0xfb, 0xeb, 0xcb, 0x8b, 0x0b, 0x16, - 0x2c, 0x58, 0xb0, 0x7d, 0xfa, 0xe9, 0xcf, 0x83, - 0x1b, 0x36, 0x6c, 0xd8, 0xad, 0x47, 0x8e, 0x01 -}; -/* Logs of 2 in the Galois field defined above. */ -static const uint8_t vdev_raidz_log2[256] = { - 0x00, 0x00, 0x01, 0x19, 0x02, 0x32, 0x1a, 0xc6, - 0x03, 0xdf, 0x33, 0xee, 0x1b, 0x68, 0xc7, 0x4b, - 0x04, 0x64, 0xe0, 0x0e, 0x34, 0x8d, 0xef, 0x81, - 0x1c, 0xc1, 0x69, 0xf8, 0xc8, 0x08, 0x4c, 0x71, - 0x05, 0x8a, 0x65, 0x2f, 0xe1, 0x24, 0x0f, 0x21, - 0x35, 0x93, 0x8e, 0xda, 0xf0, 0x12, 0x82, 0x45, - 0x1d, 0xb5, 0xc2, 0x7d, 0x6a, 0x27, 0xf9, 0xb9, - 0xc9, 0x9a, 0x09, 0x78, 0x4d, 0xe4, 0x72, 0xa6, - 0x06, 0xbf, 0x8b, 0x62, 0x66, 0xdd, 0x30, 0xfd, - 0xe2, 0x98, 0x25, 0xb3, 0x10, 0x91, 0x22, 0x88, - 0x36, 0xd0, 0x94, 0xce, 0x8f, 0x96, 0xdb, 0xbd, - 0xf1, 0xd2, 0x13, 0x5c, 0x83, 0x38, 0x46, 0x40, - 0x1e, 0x42, 0xb6, 0xa3, 0xc3, 0x48, 0x7e, 0x6e, - 0x6b, 0x3a, 0x28, 0x54, 0xfa, 0x85, 0xba, 0x3d, - 0xca, 0x5e, 0x9b, 0x9f, 0x0a, 0x15, 0x79, 0x2b, - 0x4e, 0xd4, 0xe5, 0xac, 0x73, 0xf3, 0xa7, 0x57, - 0x07, 0x70, 0xc0, 0xf7, 0x8c, 0x80, 0x63, 0x0d, - 0x67, 0x4a, 0xde, 0xed, 0x31, 0xc5, 0xfe, 0x18, - 0xe3, 0xa5, 0x99, 0x77, 0x26, 0xb8, 0xb4, 0x7c, - 0x11, 0x44, 0x92, 0xd9, 0x23, 0x20, 0x89, 0x2e, - 0x37, 0x3f, 0xd1, 0x5b, 0x95, 0xbc, 0xcf, 0xcd, - 0x90, 0x87, 0x97, 0xb2, 0xdc, 0xfc, 0xbe, 0x61, - 0xf2, 0x56, 0xd3, 0xab, 0x14, 0x2a, 0x5d, 0x9e, - 0x84, 0x3c, 0x39, 0x53, 0x47, 0x6d, 0x41, 0xa2, - 0x1f, 0x2d, 0x43, 0xd8, 0xb7, 0x7b, 0xa4, 0x76, - 0xc4, 0x17, 0x49, 0xec, 0x7f, 0x0c, 0x6f, 0xf6, - 0x6c, 0xa1, 0x3b, 0x52, 0x29, 0x9d, 0x55, 0xaa, - 0xfb, 0x60, 0x86, 0xb1, 0xbb, 0xcc, 0x3e, 0x5a, - 0xcb, 0x59, 0x5f, 0xb0, 0x9c, 0xa9, 0xa0, 0x51, - 0x0b, 0xf5, 0x16, 0xeb, 0x7a, 0x75, 0x2c, 0xd7, - 0x4f, 0xae, 0xd5, 0xe9, 0xe6, 0xe7, 0xad, 0xe8, - 0x74, 0xd6, 0xf4, 0xea, 0xa8, 0x50, 0x58, 0xaf, -}; - -static void vdev_raidz_generate_parity(raidz_map_t *rm); - -/* - * Multiply a given number by 2 raised to the given power. - */ -static uint8_t -vdev_raidz_exp2(uint_t a, int exp) -{ - if (a == 0) - return (0); - - ASSERT(exp >= 0); - ASSERT(vdev_raidz_log2[a] > 0 || a == 1); - - exp += vdev_raidz_log2[a]; - if (exp > 255) - exp -= 255; - - return (vdev_raidz_pow2[exp]); -} - -static void +void vdev_raidz_map_free(raidz_map_t *rm) { int c; @@ -437,7 +315,7 @@ static const zio_vsd_ops_t vdev_raidz_vsd_ops = { * Avoid inlining the function to keep vdev_raidz_io_start(), which * is this functions only caller, as small as possible on the stack. */ -noinline static raidz_map_t * +noinline raidz_map_t * vdev_raidz_map_alloc(zio_t *zio, uint64_t unit_shift, uint64_t dcols, uint64_t nparity) { @@ -579,6 +457,10 @@ vdev_raidz_map_alloc(zio_t *zio, uint64_t unit_shift, uint64_t dcols, zio->io_vsd = rm; zio->io_vsd_ops = &vdev_raidz_vsd_ops; + + /* RAIDZ ops init */ + vdev_raidz_math_get_ops(rm); + return (rm); } @@ -726,9 +608,14 @@ vdev_raidz_generate_parity_pqr(raidz_map_t *rm) * Generate RAID parity in the first virtual columns according to the number of * parity columns available. */ -static void +void vdev_raidz_generate_parity(raidz_map_t *rm) { + if (rm->rm_ops) { + vdev_raidz_math_generate(rm); + return; + } + switch (rm->rm_firstdatacol) { case 1: vdev_raidz_generate_parity_p(rm); @@ -1392,8 +1279,8 @@ vdev_raidz_reconstruct_general(raidz_map_t *rm, int *tgts, int ntgts) return (code); } -static int -vdev_raidz_reconstruct(raidz_map_t *rm, int *t, int nt) +int +vdev_raidz_reconstruct(raidz_map_t *rm, const int *t, int nt) { int tgts[VDEV_RAIDZ_MAXPARITY], *dt; int ntgts; @@ -1436,33 +1323,40 @@ vdev_raidz_reconstruct(raidz_map_t *rm, int *t, int nt) dt = &tgts[nbadparity]; /* + * Reconstruct using the new math implementation if + * rm_ops is set. + */ + if (rm->rm_ops) { + return (vdev_raidz_math_reconstruct(rm, parity_valid, dt, + nbaddata)); + } + + /* * See if we can use any of our optimized reconstruction routines. */ - if (!vdev_raidz_default_to_general) { - switch (nbaddata) { - case 1: - if (parity_valid[VDEV_RAIDZ_P]) - return (vdev_raidz_reconstruct_p(rm, dt, 1)); + switch (nbaddata) { + case 1: + if (parity_valid[VDEV_RAIDZ_P]) + return (vdev_raidz_reconstruct_p(rm, dt, 1)); - ASSERT(rm->rm_firstdatacol > 1); + ASSERT(rm->rm_firstdatacol > 1); - if (parity_valid[VDEV_RAIDZ_Q]) - return (vdev_raidz_reconstruct_q(rm, dt, 1)); + if (parity_valid[VDEV_RAIDZ_Q]) + return (vdev_raidz_reconstruct_q(rm, dt, 1)); - ASSERT(rm->rm_firstdatacol > 2); - break; + ASSERT(rm->rm_firstdatacol > 2); + break; - case 2: - ASSERT(rm->rm_firstdatacol > 1); + case 2: + ASSERT(rm->rm_firstdatacol > 1); - if (parity_valid[VDEV_RAIDZ_P] && - parity_valid[VDEV_RAIDZ_Q]) - return (vdev_raidz_reconstruct_pq(rm, dt, 2)); + if (parity_valid[VDEV_RAIDZ_P] && + parity_valid[VDEV_RAIDZ_Q]) + return (vdev_raidz_reconstruct_pq(rm, dt, 2)); - ASSERT(rm->rm_firstdatacol > 2); + ASSERT(rm->rm_firstdatacol > 2); - break; - } + break; } code = vdev_raidz_reconstruct_general(rm, tgts, ntgts); @@ -1739,11 +1633,6 @@ raidz_parity_verify(zio_t *zio, raidz_map_t *rm) return (ret); } -/* - * Keep statistics on all the ways that we used parity to correct data. - */ -static uint64_t raidz_corrected[1 << VDEV_RAIDZ_MAXPARITY]; - static int vdev_raidz_worst_error(raidz_map_t *rm) { @@ -1845,7 +1734,6 @@ vdev_raidz_combrec(zio_t *zio, int total_errors, int data_errors) */ code = vdev_raidz_reconstruct(rm, tgts, n); if (raidz_checksum_verify(zio) == 0) { - atomic_inc_64(&raidz_corrected[code]); for (i = 0; i < n; i++) { c = tgts[i]; @@ -2058,8 +1946,6 @@ vdev_raidz_io_done(zio_t *zio) code = vdev_raidz_reconstruct(rm, tgts, n); if (raidz_checksum_verify(zio) == 0) { - atomic_inc_64(&raidz_corrected[code]); - /* * If we read more parity disks than were used * for reconstruction, confirm that the other diff --git a/module/zfs/vdev_raidz_math.c b/module/zfs/vdev_raidz_math.c new file mode 100644 index 000000000..2d9486087 --- /dev/null +++ b/module/zfs/vdev_raidz_math.c @@ -0,0 +1,571 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (C) 2016 Gvozden Nešković. All rights reserved. + */ + +#include <sys/zfs_context.h> +#include <sys/types.h> +#include <sys/zio.h> +#include <sys/debug.h> +#include <sys/zfs_debug.h> + +#include <sys/vdev_raidz.h> +#include <sys/vdev_raidz_impl.h> + +extern const raidz_impl_ops_t vdev_raidz_scalar_impl; +extern const raidz_impl_ops_t vdev_raidz_sse_impl; +extern const raidz_impl_ops_t vdev_raidz_avx2_impl; + +/* All compiled in implementations */ +const raidz_impl_ops_t *raidz_all_maths[] = { + &vdev_raidz_scalar_impl, +#if defined(__x86_64) && defined(HAVE_SSSE3) /* only x86_64 for now */ + &vdev_raidz_sse_impl, +#endif +#if defined(__x86_64) && defined(HAVE_AVX2) /* only x86_64 for now */ + &vdev_raidz_avx2_impl +#endif +}; + +/* Indicate that benchmark has been completed */ +static boolean_t raidz_math_initialized = B_FALSE; + +/* Select raidz implementation */ +static enum vdev_raidz_impl_sel { + IMPL_FASTEST = -1, + IMPL_ORIGINAL = -2, + IMPL_CYCLE = -3, + IMPL_SCALAR = 0, +} zfs_vdev_raidz_impl = IMPL_SCALAR; + +/* selected implementation and its lock */ +static krwlock_t vdev_raidz_impl_lock; +static raidz_impl_ops_t *vdev_raidz_used_impl = + (raidz_impl_ops_t *) &vdev_raidz_scalar_impl; +static boolean_t vdev_raidz_impl_user_set = B_FALSE; + +/* RAIDZ op that contain the fastest routines */ +static raidz_impl_ops_t vdev_raidz_fastest_impl = { + .name = "fastest" +}; + +/* Hold all supported implementations */ +size_t raidz_supp_impl_cnt = 1; +raidz_impl_ops_t *raidz_supp_impl[ARRAY_SIZE(raidz_all_maths) + 1] = { + (raidz_impl_ops_t *) &vdev_raidz_scalar_impl, /* scalar is supported */ + NULL +}; + +/* + * kstats values for supported impl & original methods + * Values represent per disk throughput of 8 disk+parity raidz vdev (Bps) + */ +static raidz_impl_kstat_t raidz_impl_kstats[ARRAY_SIZE(raidz_all_maths) + 1]; + +/* kstat for benchmarked implementations */ +static kstat_t *raidz_math_kstat = NULL; + +/* + * Selects the raidz operation for raidz_map + * If rm_ops is set to NULL original raidz implementation will be used + */ +void +vdev_raidz_math_get_ops(raidz_map_t *rm) +{ + rw_enter(&vdev_raidz_impl_lock, RW_READER); + + rm->rm_ops = vdev_raidz_used_impl; + +#if !defined(_KERNEL) + if (zfs_vdev_raidz_impl == IMPL_CYCLE) { + static size_t cycle_impl_idx = 0; + size_t idx; + /* + * Cycle through all supported new implementations, and + * when idx == raidz_supp_impl_cnt, use the original + */ + idx = (++cycle_impl_idx) % (raidz_supp_impl_cnt + 1); + rm->rm_ops = raidz_supp_impl[idx]; + } +#endif + + rw_exit(&vdev_raidz_impl_lock); +} + +/* + * Select parity generation method for raidz_map + */ +void +vdev_raidz_math_generate(raidz_map_t *rm) +{ + raidz_gen_f gen_parity = NULL; + + switch (raidz_parity(rm)) { + case 1: + gen_parity = rm->rm_ops->gen[RAIDZ_GEN_P]; + break; + case 2: + gen_parity = rm->rm_ops->gen[RAIDZ_GEN_PQ]; + break; + case 3: + gen_parity = rm->rm_ops->gen[RAIDZ_GEN_PQR]; + break; + default: + gen_parity = NULL; + cmn_err(CE_PANIC, "invalid RAID-Z configuration %d", + raidz_parity(rm)); + break; + } + + ASSERT(gen_parity != NULL); + + gen_parity(rm); +} + +static raidz_rec_f +_reconstruct_fun_raidz1(raidz_map_t *rm, const int *parity_valid, + const int nbaddata) +{ + if (nbaddata == 1 && parity_valid[CODE_P]) { + return (rm->rm_ops->rec[RAIDZ_REC_P]); + } + return ((raidz_rec_f) NULL); +} + +static raidz_rec_f +_reconstruct_fun_raidz2(raidz_map_t *rm, const int *parity_valid, + const int nbaddata) +{ + if (nbaddata == 1) { + if (parity_valid[CODE_P]) { + return (rm->rm_ops->rec[RAIDZ_REC_P]); + } else if (parity_valid[CODE_Q]) { + return (rm->rm_ops->rec[RAIDZ_REC_Q]); + } + } else if (nbaddata == 2 && + parity_valid[CODE_P] && parity_valid[CODE_Q]) { + return (rm->rm_ops->rec[RAIDZ_REC_PQ]); + } + return ((raidz_rec_f) NULL); +} + +static raidz_rec_f +_reconstruct_fun_raidz3(raidz_map_t *rm, const int *parity_valid, + const int nbaddata) +{ + if (nbaddata == 1) { + if (parity_valid[CODE_P]) { + return (rm->rm_ops->rec[RAIDZ_REC_P]); + } else if (parity_valid[CODE_Q]) { + return (rm->rm_ops->rec[RAIDZ_REC_Q]); + } else if (parity_valid[CODE_R]) { + return (rm->rm_ops->rec[RAIDZ_REC_R]); + } + } else if (nbaddata == 2) { + if (parity_valid[CODE_P] && parity_valid[CODE_Q]) { + return (rm->rm_ops->rec[RAIDZ_REC_PQ]); + } else if (parity_valid[CODE_P] && parity_valid[CODE_R]) { + return (rm->rm_ops->rec[RAIDZ_REC_PR]); + } else if (parity_valid[CODE_Q] && parity_valid[CODE_R]) { + return (rm->rm_ops->rec[RAIDZ_REC_QR]); + } + } else if (nbaddata == 3 && + parity_valid[CODE_P] && parity_valid[CODE_Q] && + parity_valid[CODE_R]) { + return (rm->rm_ops->rec[RAIDZ_REC_PQR]); + } + return ((raidz_rec_f) NULL); +} + +/* + * Select data reconstruction method for raidz_map + * @parity_valid - Parity validity flag + * @dt - Failed data index array + * @nbaddata - Number of failed data columns + */ +int +vdev_raidz_math_reconstruct(raidz_map_t *rm, const int *parity_valid, + const int *dt, const int nbaddata) +{ + raidz_rec_f rec_data = NULL; + + switch (raidz_parity(rm)) { + case 1: + rec_data = _reconstruct_fun_raidz1(rm, parity_valid, + nbaddata); + break; + case 2: + rec_data = _reconstruct_fun_raidz2(rm, parity_valid, + nbaddata); + break; + case 3: + rec_data = _reconstruct_fun_raidz3(rm, parity_valid, + nbaddata); + break; + default: + cmn_err(CE_PANIC, "invalid RAID-Z configuration %d", + raidz_parity(rm)); + break; + } + + ASSERT(rec_data != NULL); + + return (rec_data(rm, dt)); +} + +const char *raidz_gen_name[] = { + "gen_p", "gen_pq", "gen_pqr" +}; +const char *raidz_rec_name[] = { + "rec_p", "rec_q", "rec_r", + "rec_pq", "rec_pr", "rec_qr", "rec_pqr" +}; + +static void +init_raidz_kstat(raidz_impl_kstat_t *rs, const char *name) +{ + int i; + const size_t impl_name_len = strnlen(name, KSTAT_STRLEN); + const size_t op_name_max = (KSTAT_STRLEN - 2) > impl_name_len ? + KSTAT_STRLEN - impl_name_len - 2 : 0; + + for (i = 0; i < RAIDZ_GEN_NUM; i++) { + strncpy(rs->gen[i].name, name, impl_name_len); + strncpy(rs->gen[i].name + impl_name_len, "_", 1); + strncpy(rs->gen[i].name + impl_name_len + 1, + raidz_gen_name[i], op_name_max); + + rs->gen[i].data_type = KSTAT_DATA_UINT64; + rs->gen[i].value.ui64 = 0; + } + + for (i = 0; i < RAIDZ_REC_NUM; i++) { + strncpy(rs->rec[i].name, name, impl_name_len); + strncpy(rs->rec[i].name + impl_name_len, "_", 1); + strncpy(rs->rec[i].name + impl_name_len + 1, + raidz_rec_name[i], op_name_max); + + rs->rec[i].data_type = KSTAT_DATA_UINT64; + rs->rec[i].value.ui64 = 0; + } +} + +#define BENCH_D_COLS (8ULL) +#define BENCH_COLS (BENCH_D_COLS + PARITY_PQR) +#define BENCH_ZIO_SIZE (2ULL << 17) /* 128 kiB */ +#define BENCH_NS MSEC2NSEC(25) /* 25ms */ + +typedef void (*benchmark_fn)(raidz_map_t *rm, const int fn); + +static void +benchmark_gen_impl(raidz_map_t *rm, const int fn) +{ + (void) fn; + vdev_raidz_generate_parity(rm); +} + +static void +benchmark_rec_impl(raidz_map_t *rm, const int fn) +{ + static const int rec_tgt[7][3] = { + {1, 2, 3}, /* rec_p: bad QR & D[0] */ + {0, 2, 3}, /* rec_q: bad PR & D[0] */ + {0, 1, 3}, /* rec_r: bad PQ & D[0] */ + {2, 3, 4}, /* rec_pq: bad R & D[0][1] */ + {1, 3, 4}, /* rec_pr: bad Q & D[0][1] */ + {0, 3, 4}, /* rec_qr: bad P & D[0][1] */ + {3, 4, 5} /* rec_pqr: bad & D[0][1][2] */ + }; + + vdev_raidz_reconstruct(rm, rec_tgt[fn], 3); +} + +/* + * Benchmarking of all supported implementations (raidz_supp_impl_cnt) + * is performed by setting the rm_ops pointer and calling the top level + * generate/reconstruct methods of bench_rm. + */ +static void +benchmark_raidz_impl(raidz_map_t *bench_rm, const int fn, benchmark_fn bench_fn) +{ + uint64_t run_cnt, speed, best_speed = 0; + hrtime_t t_start, t_diff; + raidz_impl_ops_t *curr_impl; + int impl, i; + + /* + * Use the sentinel (NULL) from the end of raidz_supp_impl_cnt + * to run "original" implementation (bench_rm->rm_ops = NULL) + */ + for (impl = 0; impl <= raidz_supp_impl_cnt; impl++) { + /* set an implementation to benchmark */ + curr_impl = raidz_supp_impl[impl]; + bench_rm->rm_ops = curr_impl; + + run_cnt = 0; + t_start = gethrtime(); + + do { + for (i = 0; i < 25; i++, run_cnt++) + bench_fn(bench_rm, fn); + + t_diff = gethrtime() - t_start; + } while (t_diff < BENCH_NS); + + speed = run_cnt * BENCH_ZIO_SIZE * NANOSEC; + speed /= (t_diff * BENCH_COLS); + + if (bench_fn == benchmark_gen_impl) + raidz_impl_kstats[impl].gen[fn].value.ui64 = speed; + else + raidz_impl_kstats[impl].rec[fn].value.ui64 = speed; + + /* if curr_impl==NULL the original impl is benchmarked */ + if (curr_impl != NULL && speed > best_speed) { + best_speed = speed; + + if (bench_fn == benchmark_gen_impl) + vdev_raidz_fastest_impl.gen[fn] = + curr_impl->gen[fn]; + else + vdev_raidz_fastest_impl.rec[fn] = + curr_impl->rec[fn]; + } + } +} + +void +vdev_raidz_math_init(void) +{ + raidz_impl_ops_t *curr_impl; + zio_t *bench_zio = NULL; + raidz_map_t *bench_rm = NULL; + uint64_t bench_parity; + int i, c, fn; + + /* init & vdev_raidz_impl_lock */ + rw_init(&vdev_raidz_impl_lock, NULL, RW_DEFAULT, NULL); + + /* move supported impl into raidz_supp_impl */ + for (i = 0, c = 0; i < ARRAY_SIZE(raidz_all_maths); i++) { + curr_impl = (raidz_impl_ops_t *) raidz_all_maths[i]; + + /* initialize impl */ + if (curr_impl->init) + curr_impl->init(); + + if (curr_impl->is_supported()) { + /* init kstat */ + init_raidz_kstat(&raidz_impl_kstats[c], + curr_impl->name); + raidz_supp_impl[c++] = (raidz_impl_ops_t *) curr_impl; + } + } + raidz_supp_impl_cnt = c; /* number of supported impl */ + raidz_supp_impl[c] = NULL; /* sentinel */ + + /* init kstat for original routines */ + init_raidz_kstat(&(raidz_impl_kstats[raidz_supp_impl_cnt]), "original"); + +#if !defined(_KERNEL) + /* + * Skip benchmarking and use last implementation as fastest + */ + memcpy(&vdev_raidz_fastest_impl, raidz_supp_impl[raidz_supp_impl_cnt-1], + sizeof (vdev_raidz_fastest_impl)); + + vdev_raidz_fastest_impl.name = "fastest"; + + raidz_math_initialized = B_TRUE; + + /* Use 'cycle' math selection method for userspace */ + VERIFY0(vdev_raidz_impl_set("cycle")); + return; +#endif + + /* Fake an zio and run the benchmark on it */ + bench_zio = kmem_zalloc(sizeof (zio_t), KM_SLEEP); + bench_zio->io_offset = 0; + bench_zio->io_size = BENCH_ZIO_SIZE; /* only data columns */ + bench_zio->io_data = zio_data_buf_alloc(BENCH_ZIO_SIZE); + VERIFY(bench_zio->io_data); + + /* Benchmark parity generation methods */ + for (fn = 0; fn < RAIDZ_GEN_NUM; fn++) { + bench_parity = fn + 1; + /* New raidz_map is needed for each generate_p/q/r */ + bench_rm = vdev_raidz_map_alloc(bench_zio, 9, + BENCH_D_COLS + bench_parity, bench_parity); + + benchmark_raidz_impl(bench_rm, fn, benchmark_gen_impl); + + vdev_raidz_map_free(bench_rm); + } + + /* Benchmark data reconstruction methods */ + bench_rm = vdev_raidz_map_alloc(bench_zio, 9, BENCH_COLS, PARITY_PQR); + + for (fn = 0; fn < RAIDZ_REC_NUM; fn++) + benchmark_raidz_impl(bench_rm, fn, benchmark_rec_impl); + + vdev_raidz_map_free(bench_rm); + + /* cleanup the bench zio */ + zio_data_buf_free(bench_zio->io_data, BENCH_ZIO_SIZE); + kmem_free(bench_zio, sizeof (zio_t)); + + /* install kstats for all impl */ + raidz_math_kstat = kstat_create("zfs", 0, "vdev_raidz_bench", + "misc", KSTAT_TYPE_NAMED, + sizeof (raidz_impl_kstat_t) / sizeof (kstat_named_t) * + (raidz_supp_impl_cnt + 1), KSTAT_FLAG_VIRTUAL); + + if (raidz_math_kstat != NULL) { + raidz_math_kstat->ks_data = raidz_impl_kstats; + kstat_install(raidz_math_kstat); + } + + /* Finish initialization */ + raidz_math_initialized = B_TRUE; + if (!vdev_raidz_impl_user_set) + VERIFY0(vdev_raidz_impl_set("fastest")); +} + +void +vdev_raidz_math_fini(void) +{ + raidz_impl_ops_t const *curr_impl; + int i; + + if (raidz_math_kstat != NULL) { + kstat_delete(raidz_math_kstat); + raidz_math_kstat = NULL; + } + + rw_destroy(&vdev_raidz_impl_lock); + + /* fini impl */ + for (i = 0; i < ARRAY_SIZE(raidz_all_maths); i++) { + curr_impl = raidz_all_maths[i]; + + if (curr_impl->fini) + curr_impl->fini(); + } +} + +static const +struct { + char *name; + raidz_impl_ops_t *impl; + enum vdev_raidz_impl_sel sel; +} math_impl_opts[] = { + { "fastest", &vdev_raidz_fastest_impl, IMPL_FASTEST }, + { "original", NULL, IMPL_ORIGINAL }, +#if !defined(_KERNEL) + { "cycle", NULL, IMPL_CYCLE }, +#endif +}; + +/* + * Function sets desired raidz implementation. + * If called after module_init(), vdev_raidz_impl_lock must be held for writing. + * + * @val Name of raidz implementation to use + * @param Unused. + */ +static int +zfs_vdev_raidz_impl_set(const char *val, struct kernel_param *kp) +{ + size_t i; + + /* Check mandatory options */ + for (i = 0; i < ARRAY_SIZE(math_impl_opts); i++) { + if (strcmp(val, math_impl_opts[i].name) == 0) { + zfs_vdev_raidz_impl = math_impl_opts[i].sel; + vdev_raidz_used_impl = math_impl_opts[i].impl; + vdev_raidz_impl_user_set = B_TRUE; + return (0); + } + } + + /* check all supported implementations */ + for (i = 0; i < raidz_supp_impl_cnt; i++) { + if (strcmp(val, raidz_supp_impl[i]->name) == 0) { + zfs_vdev_raidz_impl = i; + vdev_raidz_used_impl = raidz_supp_impl[i]; + vdev_raidz_impl_user_set = B_TRUE; + return (0); + } + } + + return (-EINVAL); +} + +int +vdev_raidz_impl_set(const char *val) +{ + int err; + + ASSERT(raidz_math_initialized); + + rw_enter(&vdev_raidz_impl_lock, RW_WRITER); + err = zfs_vdev_raidz_impl_set(val, NULL); + rw_exit(&vdev_raidz_impl_lock); + return (err); +} + +#if defined(_KERNEL) && defined(HAVE_SPL) +static int +zfs_vdev_raidz_impl_get(char *buffer, struct kernel_param *kp) +{ + int i, cnt = 0; + char *fmt; + + ASSERT(raidz_math_initialized); + + rw_enter(&vdev_raidz_impl_lock, RW_READER); + + /* list mandatory options */ + for (i = 0; i < ARRAY_SIZE(math_impl_opts); i++) { + if (math_impl_opts[i].sel == zfs_vdev_raidz_impl) + fmt = "[%s] "; + else + fmt = "%s "; + + cnt += sprintf(buffer + cnt, fmt, math_impl_opts[i].name); + } + + /* list all supported implementations */ + for (i = 0; i < raidz_supp_impl_cnt; i++) { + fmt = (i == zfs_vdev_raidz_impl) ? "[%s] " : "%s "; + cnt += sprintf(buffer + cnt, fmt, raidz_supp_impl[i]->name); + } + + rw_exit(&vdev_raidz_impl_lock); + + return (cnt); +} + +module_param_call(zfs_vdev_raidz_impl, zfs_vdev_raidz_impl_set, + zfs_vdev_raidz_impl_get, NULL, 0644); +MODULE_PARM_DESC(zfs_vdev_raidz_impl, "Select raidz implementation."); +#endif diff --git a/module/zfs/vdev_raidz_math_avx2.c b/module/zfs/vdev_raidz_math_avx2.c new file mode 100644 index 000000000..1df9c55b1 --- /dev/null +++ b/module/zfs/vdev_raidz_math_avx2.c @@ -0,0 +1,396 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (C) 2016 Gvozden Nešković. All rights reserved. + */ + +#include <sys/isa_defs.h> + +#if defined(__x86_64) && defined(HAVE_AVX2) + +#include <sys/types.h> +#include <linux/simd_x86.h> + +#define __asm __asm__ __volatile__ + +#define _REG_CNT(_0, _1, _2, _3, _4, _5, _6, _7, N, ...) N +#define REG_CNT(r...) _REG_CNT(r, 8, 7, 6, 5, 4, 3, 2, 1) + +#define VR0_(REG, ...) "ymm"#REG +#define VR1_(_1, REG, ...) "ymm"#REG +#define VR2_(_1, _2, REG, ...) "ymm"#REG +#define VR3_(_1, _2, _3, REG, ...) "ymm"#REG +#define VR4_(_1, _2, _3, _4, REG, ...) "ymm"#REG +#define VR5_(_1, _2, _3, _4, _5, REG, ...) "ymm"#REG +#define VR6_(_1, _2, _3, _4, _5, _6, REG, ...) "ymm"#REG +#define VR7_(_1, _2, _3, _4, _5, _6, _7, REG, ...) "ymm"#REG + +#define VR0(r...) VR0_(r) +#define VR1(r...) VR1_(r) +#define VR2(r...) VR2_(r, 1) +#define VR3(r...) VR3_(r, 1, 2) +#define VR4(r...) VR4_(r, 1) +#define VR5(r...) VR5_(r, 1, 2) +#define VR6(r...) VR6_(r, 1, 2, 3) +#define VR7(r...) VR7_(r, 1, 2, 3, 4) + +#define R_01(REG1, REG2, ...) REG1, REG2 +#define _R_23(_0, _1, REG2, REG3, ...) REG2, REG3 +#define R_23(REG...) _R_23(REG, 1, 2, 3) + +#define ASM_BUG() ASSERT(0) + +extern const uint8_t gf_clmul_mod_lt[4*256][16]; + +#define ELEM_SIZE 32 + +typedef struct v { + uint8_t b[ELEM_SIZE] __attribute__((aligned(ELEM_SIZE))); +} v_t; + +#define PREFETCHNTA(ptr, offset) \ +{ \ + __asm( \ + "prefetchnta " #offset "(%[MEM])\n" \ + : : [MEM] "r" (ptr)); \ +} + +#define PREFETCH(ptr, offset) \ +{ \ + __asm( \ + "prefetcht0 " #offset "(%[MEM])\n" \ + : : [MEM] "r" (ptr)); \ +} + +#define XOR_ACC(src, r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 4: \ + __asm( \ + "vpxor 0x00(%[SRC]), %%" VR0(r)", %%" VR0(r) "\n" \ + "vpxor 0x20(%[SRC]), %%" VR1(r)", %%" VR1(r) "\n" \ + "vpxor 0x40(%[SRC]), %%" VR2(r)", %%" VR2(r) "\n" \ + "vpxor 0x60(%[SRC]), %%" VR3(r)", %%" VR3(r) "\n" \ + : : [SRC] "r" (src)); \ + break; \ + case 2: \ + __asm( \ + "vpxor 0x00(%[SRC]), %%" VR0(r)", %%" VR0(r) "\n" \ + "vpxor 0x20(%[SRC]), %%" VR1(r)", %%" VR1(r) "\n" \ + : : [SRC] "r" (src)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define XOR(r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 8: \ + __asm( \ + "vpxor %" VR0(r) ", %" VR4(r)", %" VR4(r) "\n" \ + "vpxor %" VR1(r) ", %" VR5(r)", %" VR5(r) "\n" \ + "vpxor %" VR2(r) ", %" VR6(r)", %" VR6(r) "\n" \ + "vpxor %" VR3(r) ", %" VR7(r)", %" VR7(r)); \ + break; \ + case 4: \ + __asm( \ + "vpxor %" VR0(r) ", %" VR2(r)", %" VR2(r) "\n" \ + "vpxor %" VR1(r) ", %" VR3(r)", %" VR3(r)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define COPY(r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 8: \ + __asm( \ + "vmovdqa %" VR0(r) ", %" VR4(r) "\n" \ + "vmovdqa %" VR1(r) ", %" VR5(r) "\n" \ + "vmovdqa %" VR2(r) ", %" VR6(r) "\n" \ + "vmovdqa %" VR3(r) ", %" VR7(r)); \ + break; \ + case 4: \ + __asm( \ + "vmovdqa %" VR0(r) ", %" VR2(r) "\n" \ + "vmovdqa %" VR1(r) ", %" VR3(r)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define LOAD(src, r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 4: \ + __asm( \ + "vmovdqa 0x00(%[SRC]), %%" VR0(r) "\n" \ + "vmovdqa 0x20(%[SRC]), %%" VR1(r) "\n" \ + "vmovdqa 0x40(%[SRC]), %%" VR2(r) "\n" \ + "vmovdqa 0x60(%[SRC]), %%" VR3(r) "\n" \ + : : [SRC] "r" (src)); \ + break; \ + case 2: \ + __asm( \ + "vmovdqa 0x00(%[SRC]), %%" VR0(r) "\n" \ + "vmovdqa 0x20(%[SRC]), %%" VR1(r) "\n" \ + : : [SRC] "r" (src)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define STORE(dst, r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 4: \ + __asm( \ + "vmovdqa %%" VR0(r) ", 0x00(%[DST])\n" \ + "vmovdqa %%" VR1(r) ", 0x20(%[DST])\n" \ + "vmovdqa %%" VR2(r) ", 0x40(%[DST])\n" \ + "vmovdqa %%" VR3(r) ", 0x60(%[DST])\n" \ + : : [DST] "r" (dst)); \ + break; \ + case 2: \ + __asm( \ + "vmovdqa %%" VR0(r) ", 0x00(%[DST])\n" \ + "vmovdqa %%" VR1(r) ", 0x20(%[DST])\n" \ + : : [DST] "r" (dst)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define FLUSH() \ +{ \ + __asm("vzeroupper"); \ +} + +#define MUL2_SETUP() \ +{ \ + __asm("vmovq %0, %%xmm14" :: "r"(0x1d1d1d1d1d1d1d1d)); \ + __asm("vpbroadcastq %xmm14, %ymm14"); \ + __asm("vpxor %ymm15, %ymm15 ,%ymm15"); \ +} + +#define _MUL2(r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 2: \ + __asm( \ + "vpcmpgtb %" VR0(r)", %ymm15, %ymm12\n" \ + "vpcmpgtb %" VR1(r)", %ymm15, %ymm13\n" \ + "vpaddb %" VR0(r)", %" VR0(r)", %" VR0(r) "\n" \ + "vpaddb %" VR1(r)", %" VR1(r)", %" VR1(r) "\n" \ + "vpand %ymm14, %ymm12, %ymm12\n" \ + "vpand %ymm14, %ymm13, %ymm13\n" \ + "vpxor %ymm12, %" VR0(r)", %" VR0(r) "\n" \ + "vpxor %ymm13, %" VR1(r)", %" VR1(r)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define MUL2(r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 4: \ + _MUL2(R_01(r)); \ + _MUL2(R_23(r)); \ + break; \ + case 2: \ + _MUL2(r); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define MUL4(r...) \ +{ \ + MUL2(r); \ + MUL2(r); \ +} + +#define _0f "ymm15" +#define _as "ymm14" +#define _bs "ymm13" +#define _ltmod "ymm12" +#define _ltmul "ymm11" +#define _ta "ymm10" +#define _tb "ymm15" + +static const uint8_t __attribute__((aligned(32))) _mul_mask = 0x0F; + +#define _MULx2(c, r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 2: \ + __asm( \ + "vpbroadcastb (%[mask]), %%" _0f "\n" \ + /* upper bits */ \ + "vbroadcasti128 0x00(%[lt]), %%" _ltmod "\n" \ + "vbroadcasti128 0x10(%[lt]), %%" _ltmul "\n" \ + \ + "vpsraw $0x4, %%" VR0(r) ", %%"_as "\n" \ + "vpsraw $0x4, %%" VR1(r) ", %%"_bs "\n" \ + "vpand %%" _0f ", %%" VR0(r) ", %%" VR0(r) "\n" \ + "vpand %%" _0f ", %%" VR1(r) ", %%" VR1(r) "\n" \ + "vpand %%" _0f ", %%" _as ", %%" _as "\n" \ + "vpand %%" _0f ", %%" _bs ", %%" _bs "\n" \ + \ + "vpshufb %%" _as ", %%" _ltmod ", %%" _ta "\n" \ + "vpshufb %%" _bs ", %%" _ltmod ", %%" _tb "\n" \ + "vpshufb %%" _as ", %%" _ltmul ", %%" _as "\n" \ + "vpshufb %%" _bs ", %%" _ltmul ", %%" _bs "\n" \ + /* lower bits */ \ + "vbroadcasti128 0x20(%[lt]), %%" _ltmod "\n" \ + "vbroadcasti128 0x30(%[lt]), %%" _ltmul "\n" \ + \ + "vpxor %%" _ta ", %%" _as ", %%" _as "\n" \ + "vpxor %%" _tb ", %%" _bs ", %%" _bs "\n" \ + \ + "vpshufb %%" VR0(r) ", %%" _ltmod ", %%" _ta "\n" \ + "vpshufb %%" VR1(r) ", %%" _ltmod ", %%" _tb "\n" \ + "vpshufb %%" VR0(r) ", %%" _ltmul ", %%" VR0(r) "\n"\ + "vpshufb %%" VR1(r) ", %%" _ltmul ", %%" VR1(r) "\n"\ + \ + "vpxor %%" _ta ", %%" VR0(r) ", %%" VR0(r) "\n" \ + "vpxor %%" _as ", %%" VR0(r) ", %%" VR0(r) "\n" \ + "vpxor %%" _tb ", %%" VR1(r) ", %%" VR1(r) "\n" \ + "vpxor %%" _bs ", %%" VR1(r) ", %%" VR1(r) "\n" \ + : : [mask] "r" (&_mul_mask), \ + [lt] "r" (gf_clmul_mod_lt[4*(c)])); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define MUL(c, r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 4: \ + _MULx2(c, R_01(r)); \ + _MULx2(c, R_23(r)); \ + break; \ + case 2: \ + _MULx2(c, R_01(r)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define raidz_math_begin() kfpu_begin() +#define raidz_math_end() \ +{ \ + FLUSH(); \ + kfpu_end(); \ +} + +#define GEN_P_DEFINE() {} +#define GEN_P_STRIDE 4 +#define GEN_P_P 0, 1, 2, 3 + +#define GEN_PQ_DEFINE() {} +#define GEN_PQ_STRIDE 4 +#define GEN_PQ_D 0, 1, 2, 3 +#define GEN_PQ_P 4, 5, 6, 7 +#define GEN_PQ_Q 8, 9, 10, 11 + +#define GEN_PQR_DEFINE() {} +#define GEN_PQR_STRIDE 2 +#define GEN_PQR_D 0, 1 +#define GEN_PQR_P 2, 3 +#define GEN_PQR_Q 4, 5 +#define GEN_PQR_R 6, 7 + +#define REC_P_DEFINE() {} +#define REC_P_STRIDE 4 +#define REC_P_X 0, 1, 2, 3 + +#define REC_Q_DEFINE() {} +#define REC_Q_STRIDE 4 +#define REC_Q_X 0, 1, 2, 3 + +#define REC_R_DEFINE() {} +#define REC_R_STRIDE 4 +#define REC_R_X 0, 1, 2, 3 + +#define REC_PQ_DEFINE() {} +#define REC_PQ_STRIDE 2 +#define REC_PQ_X 0, 1 +#define REC_PQ_Y 2, 3 +#define REC_PQ_D 4, 5 + +#define REC_PR_DEFINE() {} +#define REC_PR_STRIDE 2 +#define REC_PR_X 0, 1 +#define REC_PR_Y 2, 3 +#define REC_PR_D 4, 5 + +#define REC_QR_DEFINE() {} +#define REC_QR_STRIDE 2 +#define REC_QR_X 0, 1 +#define REC_QR_Y 2, 3 +#define REC_QR_D 4, 5 + +#define REC_PQR_DEFINE() {} +#define REC_PQR_STRIDE 2 +#define REC_PQR_X 0, 1 +#define REC_PQR_Y 2, 3 +#define REC_PQR_Z 4, 5 +#define REC_PQR_D 6, 7 +#define REC_PQR_XS 6, 7 +#define REC_PQR_YS 8, 9 + + +#include <sys/vdev_raidz_impl.h> +#include "vdev_raidz_math_impl.h" + +DEFINE_GEN_METHODS(avx2); +DEFINE_REC_METHODS(avx2); + +static boolean_t +raidz_will_avx2_work(void) +{ + return (zfs_avx_available() && zfs_avx2_available()); +} + +const raidz_impl_ops_t vdev_raidz_avx2_impl = { + .init = NULL, + .fini = NULL, + .gen = RAIDZ_GEN_METHODS(avx2), + .rec = RAIDZ_REC_METHODS(avx2), + .is_supported = &raidz_will_avx2_work, + .name = "avx2" +}; + +#endif /* defined(__x86_64) && defined(HAVE_AVX2) */ diff --git a/module/zfs/vdev_raidz_math_impl.h b/module/zfs/vdev_raidz_math_impl.h new file mode 100644 index 000000000..67cad76c1 --- /dev/null +++ b/module/zfs/vdev_raidz_math_impl.h @@ -0,0 +1,1199 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (C) 2016 Gvozden Nešković. All rights reserved. + */ + +#ifndef _VDEV_RAIDZ_MATH_IMPL_H +#define _VDEV_RAIDZ_MATH_IMPL_H + +#include <sys/types.h> + +#define raidz_inline inline __attribute__((always_inline)) +#ifndef noinline +#define noinline __attribute__((noinline)) +#endif + +/* Calculate data offset in raidz column, offset is in bytes */ +#define COL_OFF(col, off) ((v_t *)(((char *)(col)->rc_data) + (off))) + +/* + * PARITY CALCULATION + * An optimized function is called for a full length of data columns + * If RAIDZ map contains remainder columns (shorter columns) the same function + * is called for reminder of full columns. + * + * GEN_[P|PQ|PQR]_BLOCK() functions are designed to be efficiently in-lined by + * the compiler. This removes a lot of conditionals from the inside loop which + * makes the code faster, especially for vectorized code. + * They are also highly parametrized, allowing for each implementation to define + * most optimal stride, and register allocation. + */ + +static raidz_inline void +GEN_P_BLOCK(raidz_map_t * const rm, const size_t off, const size_t end, + const int ncols) +{ + int c; + size_t ioff; + raidz_col_t * const pcol = raidz_col_p(rm, CODE_P); + raidz_col_t *col; + + GEN_P_DEFINE(); + + for (ioff = off; ioff < end; ioff += (GEN_P_STRIDE * sizeof (v_t))) { + LOAD(COL_OFF(&(rm->rm_col[1]), ioff), GEN_P_P); + + for (c = 2; c < ncols; c++) { + col = &rm->rm_col[c]; + XOR_ACC(COL_OFF(col, ioff), GEN_P_P); + } + + STORE(COL_OFF(pcol, ioff), GEN_P_P); + } +} + +/* + * Generate P parity (RAIDZ1) + * + * @rm RAIDZ map + */ +static raidz_inline void +raidz_generate_p_impl(raidz_map_t * const rm) +{ + const int ncols = raidz_ncols(rm); + const size_t psize = raidz_big_size(rm); + const size_t short_size = raidz_short_size(rm); + + raidz_math_begin(); + + /* short_size */ + GEN_P_BLOCK(rm, 0, short_size, ncols); + + /* fullcols */ + GEN_P_BLOCK(rm, short_size, psize, raidz_nbigcols(rm)); + + raidz_math_end(); +} + +static raidz_inline void +GEN_PQ_BLOCK(raidz_map_t * const rm, const size_t off, const size_t end, + const int ncols, const int nbigcols) +{ + int c; + size_t ioff; + raidz_col_t * const pcol = raidz_col_p(rm, CODE_P); + raidz_col_t * const qcol = raidz_col_p(rm, CODE_Q); + raidz_col_t *col; + + GEN_PQ_DEFINE(); + + MUL2_SETUP(); + + for (ioff = off; ioff < end; ioff += (GEN_PQ_STRIDE * sizeof (v_t))) { + LOAD(COL_OFF(&rm->rm_col[2], ioff), GEN_PQ_P); + COPY(GEN_PQ_P, GEN_PQ_Q); + + for (c = 3; c < nbigcols; c++) { + col = &rm->rm_col[c]; + LOAD(COL_OFF(col, ioff), GEN_PQ_D); + MUL2(GEN_PQ_Q); + XOR(GEN_PQ_D, GEN_PQ_P); + XOR(GEN_PQ_D, GEN_PQ_Q); + } + + STORE(COL_OFF(pcol, ioff), GEN_PQ_P); + + for (; c < ncols; c++) + MUL2(GEN_PQ_Q); + + STORE(COL_OFF(qcol, ioff), GEN_PQ_Q); + } +} + +/* + * Generate PQ parity (RAIDZ2) + * + * @rm RAIDZ map + */ +static raidz_inline void +raidz_generate_pq_impl(raidz_map_t * const rm) +{ + const int ncols = raidz_ncols(rm); + const size_t psize = raidz_big_size(rm); + const size_t short_size = raidz_short_size(rm); + + raidz_math_begin(); + + /* short_size */ + GEN_PQ_BLOCK(rm, 0, short_size, ncols, ncols); + + /* fullcols */ + GEN_PQ_BLOCK(rm, short_size, psize, ncols, raidz_nbigcols(rm)); + + raidz_math_end(); +} + + +static raidz_inline void +GEN_PQR_BLOCK(raidz_map_t * const rm, const size_t off, const size_t end, + const int ncols, const int nbigcols) +{ + int c; + size_t ioff; + raidz_col_t *col; + raidz_col_t * const pcol = raidz_col_p(rm, CODE_P); + raidz_col_t * const qcol = raidz_col_p(rm, CODE_Q); + raidz_col_t * const rcol = raidz_col_p(rm, CODE_R); + + GEN_PQR_DEFINE(); + + MUL2_SETUP(); + + for (ioff = off; ioff < end; ioff += (GEN_PQR_STRIDE * sizeof (v_t))) { + LOAD(COL_OFF(&rm->rm_col[3], ioff), GEN_PQR_P); + COPY(GEN_PQR_P, GEN_PQR_Q); + COPY(GEN_PQR_P, GEN_PQR_R); + + for (c = 4; c < nbigcols; c++) { + col = &rm->rm_col[c]; + LOAD(COL_OFF(col, ioff), GEN_PQR_D); + MUL2(GEN_PQR_Q); + MUL4(GEN_PQR_R); + XOR(GEN_PQR_D, GEN_PQR_P); + XOR(GEN_PQR_D, GEN_PQR_Q); + XOR(GEN_PQR_D, GEN_PQR_R); + } + + STORE(COL_OFF(pcol, ioff), GEN_PQR_P); + + for (; c < ncols; c++) { + MUL2(GEN_PQR_Q); + MUL4(GEN_PQR_R); + } + + STORE(COL_OFF(qcol, ioff), GEN_PQR_Q); + STORE(COL_OFF(rcol, ioff), GEN_PQR_R); + } +} + + +/* + * Generate PQR parity (RAIDZ3) + * + * @rm RAIDZ map + */ +static raidz_inline void +raidz_generate_pqr_impl(raidz_map_t * const rm) +{ + const int ncols = raidz_ncols(rm); + const size_t psize = raidz_big_size(rm); + const size_t short_size = raidz_short_size(rm); + + raidz_math_begin(); + + /* short_size */ + GEN_PQR_BLOCK(rm, 0, short_size, ncols, ncols); + + /* fullcols */ + GEN_PQR_BLOCK(rm, short_size, psize, ncols, raidz_nbigcols(rm)); + + raidz_math_end(); +} + +/* + * DATA RECONSTRUCTION + * + * Data reconstruction process consists of two phases: + * - Syndrome calculation + * - Data reconstruction + * + * Syndrome is calculated by generating parity using available data columns + * and zeros in places of erasure. Existing parity is added to corresponding + * syndrome value to obtain the [P|Q|R]syn values from equation: + * P = Psyn + Dx + Dy + Dz + * Q = Qsyn + 2^x * Dx + 2^y * Dy + 2^z * Dz + * R = Rsyn + 4^x * Dx + 4^y * Dy + 4^z * Dz + * + * For data reconstruction phase, the corresponding equations are solved + * for missing data (Dx, Dy, Dz). This generally involves multiplying known + * symbols by an coefficient and adding them together. The multiplication + * constant coefficients are calculated ahead of the operation in + * raidz_rec_[q|r|pq|pq|qr|pqr]_coeff() functions. + * + * IMPLEMENTATION NOTE: RAID-Z block can have complex geometry, with "big" + * and "short" columns. + * For this reason, reconstruction is performed in minimum of + * two steps. First, from offset 0 to short_size, then from short_size to + * short_size. Calculation functions REC_[*]_BLOCK() are implemented to work + * over both ranges. The split also enables removal of conditional expressions + * from loop bodies, improving throughput of SIMD implementations. + * For the best performance, all functions marked with raidz_inline attribute + * must be inlined by compiler. + * + * parity data + * columns columns + * <----------> <------------------> + * x y <----+ missing columns (x, y) + * | | + * +---+---+---+---+-v-+---+-v-+---+ ^ 0 + * | | | | | | | | | | + * | | | | | | | | | | + * | P | Q | R | D | D | D | D | D | | + * | | | | 0 | 1 | 2 | 3 | 4 | | + * | | | | | | | | | v + * | | | | | +---+---+---+ ^ short_size + * | | | | | | | + * +---+---+---+---+---+ v big_size + * <------------------> <----------> + * big columns short columns + * + */ + +/* + * Functions calculate multiplication constants for data reconstruction. + * Coefficients depend on RAIDZ geometry, indexes of failed child vdevs, and + * used parity columns for reconstruction. + * @rm RAIDZ map + * @tgtidx array of missing data indexes + * @coeff output array of coefficients. Array must be user + * provided and must hold minimum MUL_CNT values + */ +static noinline void +raidz_rec_q_coeff(const raidz_map_t *rm, const int *tgtidx, unsigned *coeff) +{ + const unsigned ncols = raidz_ncols(rm); + const unsigned x = tgtidx[TARGET_X]; + + coeff[MUL_Q_X] = gf_exp2(255 - (ncols - x - 1)); +} + +static noinline void +raidz_rec_r_coeff(const raidz_map_t *rm, const int *tgtidx, unsigned *coeff) +{ + const unsigned ncols = raidz_ncols(rm); + const unsigned x = tgtidx[TARGET_X]; + + coeff[MUL_R_X] = gf_exp4(255 - (ncols - x - 1)); +} + +static noinline void +raidz_rec_pq_coeff(const raidz_map_t *rm, const int *tgtidx, unsigned *coeff) +{ + const unsigned ncols = raidz_ncols(rm); + const unsigned x = tgtidx[TARGET_X]; + const unsigned y = tgtidx[TARGET_Y]; + gf_t a, b, e; + + a = gf_exp2(x + 255 - y); + b = gf_exp2(255 - (ncols - x - 1)); + e = a ^ 0x01; + + coeff[MUL_PQ_X] = gf_div(a, e); + coeff[MUL_PQ_Y] = gf_div(b, e); +} + +static noinline void +raidz_rec_pr_coeff(const raidz_map_t *rm, const int *tgtidx, unsigned *coeff) +{ + const unsigned ncols = raidz_ncols(rm); + const unsigned x = tgtidx[TARGET_X]; + const unsigned y = tgtidx[TARGET_Y]; + + gf_t a, b, e; + + a = gf_exp4(x + 255 - y); + b = gf_exp4(255 - (ncols - x - 1)); + e = a ^ 0x01; + + coeff[MUL_PR_X] = gf_div(a, e); + coeff[MUL_PR_Y] = gf_div(b, e); +} + +static noinline void +raidz_rec_qr_coeff(const raidz_map_t *rm, const int *tgtidx, unsigned *coeff) +{ + const unsigned ncols = raidz_ncols(rm); + const unsigned x = tgtidx[TARGET_X]; + const unsigned y = tgtidx[TARGET_Y]; + + gf_t nx, ny, nxxy, nxyy, d; + + nx = gf_exp2(ncols - x - 1); + ny = gf_exp2(ncols - y - 1); + nxxy = gf_mul(gf_mul(nx, nx), ny); + nxyy = gf_mul(gf_mul(nx, ny), ny); + d = nxxy ^ nxyy; + + coeff[MUL_QR_XQ] = ny; + coeff[MUL_QR_X] = gf_div(ny, d); + coeff[MUL_QR_YQ] = nx; + coeff[MUL_QR_Y] = gf_div(nx, d); +} + +static noinline void +raidz_rec_pqr_coeff(const raidz_map_t *rm, const int *tgtidx, unsigned *coeff) +{ + const unsigned ncols = raidz_ncols(rm); + const unsigned x = tgtidx[TARGET_X]; + const unsigned y = tgtidx[TARGET_Y]; + const unsigned z = tgtidx[TARGET_Z]; + + gf_t nx, ny, nz, nxx, nyy, nzz, nyyz, nyzz, xd, yd; + + nx = gf_exp2(ncols - x - 1); + ny = gf_exp2(ncols - y - 1); + nz = gf_exp2(ncols - z - 1); + + nxx = gf_exp4(ncols - x - 1); + nyy = gf_exp4(ncols - y - 1); + nzz = gf_exp4(ncols - z - 1); + + nyyz = gf_mul(gf_mul(ny, nz), ny); + nyzz = gf_mul(nzz, ny); + + xd = gf_mul(nxx, ny) ^ gf_mul(nx, nyy) ^ nyyz ^ + gf_mul(nxx, nz) ^ gf_mul(nzz, nx) ^ nyzz; + + yd = gf_inv(ny ^ nz); + + coeff[MUL_PQR_XP] = gf_div(nyyz ^ nyzz, xd); + coeff[MUL_PQR_XQ] = gf_div(nyy ^ nzz, xd); + coeff[MUL_PQR_XR] = gf_div(ny ^ nz, xd); + coeff[MUL_PQR_YU] = nx; + coeff[MUL_PQR_YP] = gf_mul(nz, yd); + coeff[MUL_PQR_YQ] = yd; +} + + +/* + * Reconstruction using P parity + * @rm RAIDZ map + * @off starting offset + * @end ending offset + * @x missing data column + * @ncols number of column + */ +static raidz_inline void +REC_P_BLOCK(raidz_map_t * const rm, const size_t off, const size_t end, + const int x, const int ncols) +{ + int c; + size_t ioff; + const size_t firstdc = raidz_parity(rm); + raidz_col_t * const pcol = raidz_col_p(rm, CODE_P); + raidz_col_t * const xcol = raidz_col_p(rm, x); + raidz_col_t *col; + + REC_P_DEFINE(); + + for (ioff = off; ioff < end; ioff += (REC_P_STRIDE * sizeof (v_t))) { + LOAD(COL_OFF(pcol, ioff), REC_P_X); + + for (c = firstdc; c < x; c++) { + col = &rm->rm_col[c]; + XOR_ACC(COL_OFF(col, ioff), REC_P_X); + } + + for (c++; c < ncols; c++) { + col = &rm->rm_col[c]; + XOR_ACC(COL_OFF(col, ioff), REC_P_X); + } + + STORE(COL_OFF(xcol, ioff), REC_P_X); + } +} + +/* + * Reconstruct single data column using P parity + * @rec_method REC_P_BLOCK() + * + * @rm RAIDZ map + * @tgtidx array of missing data indexes + */ +static raidz_inline int +raidz_reconstruct_p_impl(raidz_map_t *rm, const int *tgtidx) +{ + const int x = tgtidx[TARGET_X]; + const int ncols = raidz_ncols(rm); + const int nbigcols = raidz_nbigcols(rm); + const size_t xsize = raidz_col_size(rm, x); + const size_t short_size = raidz_short_size(rm); + + raidz_math_begin(); + + /* 0 - short_size */ + REC_P_BLOCK(rm, 0, short_size, x, ncols); + + /* short_size - xsize */ + REC_P_BLOCK(rm, short_size, xsize, x, nbigcols); + + raidz_math_end(); + + return (1 << CODE_P); +} + +/* + * Reconstruct using Q parity + */ + +#define REC_Q_SYN_UPDATE() MUL2(REC_Q_X) + +#define REC_Q_INNER_LOOP(c) \ +{ \ + col = &rm->rm_col[c]; \ + REC_Q_SYN_UPDATE(); \ + XOR_ACC(COL_OFF(col, ioff), REC_Q_X); \ +} + +/* + * Reconstruction using Q parity + * @rm RAIDZ map + * @off starting offset + * @end ending offset + * @x missing data column + * @coeff multiplication coefficients + * @ncols number of column + * @nbigcols number of big columns + */ +static raidz_inline void +REC_Q_BLOCK(raidz_map_t * const rm, const size_t off, const size_t end, + const int x, const unsigned *coeff, const int ncols, const int nbigcols) +{ + int c; + size_t ioff = 0; + const size_t firstdc = raidz_parity(rm); + raidz_col_t * const qcol = raidz_col_p(rm, CODE_Q); + raidz_col_t * const xcol = raidz_col_p(rm, x); + raidz_col_t *col; + + REC_Q_DEFINE(); + + for (ioff = off; ioff < end; ioff += (REC_Q_STRIDE * sizeof (v_t))) { + MUL2_SETUP(); + + XOR(REC_Q_X, REC_Q_X); + + if (ncols == nbigcols) { + for (c = firstdc; c < x; c++) + REC_Q_INNER_LOOP(c); + + REC_Q_SYN_UPDATE(); + for (c++; c < nbigcols; c++) + REC_Q_INNER_LOOP(c); + } else { + for (c = firstdc; c < nbigcols; c++) { + REC_Q_SYN_UPDATE(); + if (x != c) { + col = &rm->rm_col[c]; + XOR_ACC(COL_OFF(col, ioff), REC_Q_X); + } + } + for (; c < ncols; c++) + REC_Q_SYN_UPDATE(); + } + + XOR_ACC(COL_OFF(qcol, ioff), REC_Q_X); + MUL(coeff[MUL_Q_X], REC_Q_X); + STORE(COL_OFF(xcol, ioff), REC_Q_X); + } +} + +/* + * Reconstruct single data column using Q parity + * @rec_method REC_Q_BLOCK() + * + * @rm RAIDZ map + * @tgtidx array of missing data indexes + */ +static raidz_inline int +raidz_reconstruct_q_impl(raidz_map_t *rm, const int *tgtidx) +{ + const int x = tgtidx[TARGET_X]; + const int ncols = raidz_ncols(rm); + const int nbigcols = raidz_nbigcols(rm); + const size_t xsize = raidz_col_size(rm, x); + const size_t short_size = raidz_short_size(rm); + unsigned coeff[MUL_CNT]; + + raidz_rec_q_coeff(rm, tgtidx, coeff); + + raidz_math_begin(); + + /* 0 - short_size */ + REC_Q_BLOCK(rm, 0, short_size, x, coeff, ncols, ncols); + + /* short_size - xsize */ + REC_Q_BLOCK(rm, short_size, xsize, x, coeff, ncols, nbigcols); + + raidz_math_end(); + + return (1 << CODE_Q); +} + +/* + * Reconstruct using R parity + */ + +#define REC_R_SYN_UPDATE() MUL4(REC_R_X) +#define REC_R_INNER_LOOP(c) \ +{ \ + col = &rm->rm_col[c]; \ + REC_R_SYN_UPDATE(); \ + XOR_ACC(COL_OFF(col, ioff), REC_R_X); \ +} + +/* + * Reconstruction using R parity + * @rm RAIDZ map + * @off starting offset + * @end ending offset + * @x missing data column + * @coeff multiplication coefficients + * @ncols number of column + * @nbigcols number of big columns + */ +static raidz_inline void +REC_R_BLOCK(raidz_map_t * const rm, const size_t off, const size_t end, + const int x, const unsigned *coeff, const int ncols, const int nbigcols) +{ + int c; + size_t ioff = 0; + const size_t firstdc = raidz_parity(rm); + raidz_col_t * const rcol = raidz_col_p(rm, CODE_R); + raidz_col_t * const xcol = raidz_col_p(rm, x); + raidz_col_t *col; + + REC_R_DEFINE(); + + for (ioff = off; ioff < end; ioff += (REC_R_STRIDE * sizeof (v_t))) { + MUL2_SETUP(); + + XOR(REC_R_X, REC_R_X); + + if (ncols == nbigcols) { + for (c = firstdc; c < x; c++) + REC_R_INNER_LOOP(c); + + REC_R_SYN_UPDATE(); + for (c++; c < nbigcols; c++) + REC_R_INNER_LOOP(c); + } else { + for (c = firstdc; c < nbigcols; c++) { + REC_R_SYN_UPDATE(); + if (c != x) { + col = &rm->rm_col[c]; + XOR_ACC(COL_OFF(col, ioff), REC_R_X); + } + } + for (; c < ncols; c++) + REC_R_SYN_UPDATE(); + } + + XOR_ACC(COL_OFF(rcol, ioff), REC_R_X); + MUL(coeff[MUL_R_X], REC_R_X); + STORE(COL_OFF(xcol, ioff), REC_R_X); + } +} + +/* + * Reconstruct single data column using R parity + * @rec_method REC_R_BLOCK() + * + * @rm RAIDZ map + * @tgtidx array of missing data indexes + */ +static raidz_inline int +raidz_reconstruct_r_impl(raidz_map_t *rm, const int *tgtidx) +{ + const int x = tgtidx[TARGET_X]; + const int ncols = raidz_ncols(rm); + const int nbigcols = raidz_nbigcols(rm); + const size_t xsize = raidz_col_size(rm, x); + const size_t short_size = raidz_short_size(rm); + unsigned coeff[MUL_CNT]; + + raidz_rec_r_coeff(rm, tgtidx, coeff); + + raidz_math_begin(); + + /* 0 - short_size */ + REC_R_BLOCK(rm, 0, short_size, x, coeff, ncols, ncols); + + /* short_size - xsize */ + REC_R_BLOCK(rm, short_size, xsize, x, coeff, ncols, nbigcols); + + raidz_math_end(); + + return (1 << CODE_R); +} + +/* + * Reconstruct using PQ parity + */ + +#define REC_PQ_SYN_UPDATE() MUL2(REC_PQ_Y) +#define REC_PQ_INNER_LOOP(c) \ +{ \ + col = &rm->rm_col[c]; \ + LOAD(COL_OFF(col, ioff), REC_PQ_D); \ + REC_PQ_SYN_UPDATE(); \ + XOR(REC_PQ_D, REC_PQ_X); \ + XOR(REC_PQ_D, REC_PQ_Y); \ +} + +/* + * Reconstruction using PQ parity + * @rm RAIDZ map + * @off starting offset + * @end ending offset + * @x missing data column + * @y missing data column + * @coeff multiplication coefficients + * @ncols number of column + * @nbigcols number of big columns + * @calcy calculate second data column + */ +static raidz_inline void +REC_PQ_BLOCK(raidz_map_t * const rm, const size_t off, const size_t end, + const int x, const int y, const unsigned *coeff, const int ncols, + const int nbigcols, const boolean_t calcy) +{ + int c; + size_t ioff = 0; + const size_t firstdc = raidz_parity(rm); + raidz_col_t * const pcol = raidz_col_p(rm, CODE_P); + raidz_col_t * const qcol = raidz_col_p(rm, CODE_Q); + raidz_col_t * const xcol = raidz_col_p(rm, x); + raidz_col_t * const ycol = raidz_col_p(rm, y); + raidz_col_t *col; + + REC_PQ_DEFINE(); + + for (ioff = off; ioff < end; ioff += (REC_PQ_STRIDE * sizeof (v_t))) { + LOAD(COL_OFF(pcol, ioff), REC_PQ_X); + XOR(REC_PQ_Y, REC_PQ_Y); + MUL2_SETUP(); + + if (ncols == nbigcols) { + for (c = firstdc; c < x; c++) + REC_PQ_INNER_LOOP(c); + + REC_PQ_SYN_UPDATE(); + for (c++; c < y; c++) + REC_PQ_INNER_LOOP(c); + + REC_PQ_SYN_UPDATE(); + for (c++; c < nbigcols; c++) + REC_PQ_INNER_LOOP(c); + } else { + for (c = firstdc; c < nbigcols; c++) { + REC_PQ_SYN_UPDATE(); + if (c != x && c != y) { + col = &rm->rm_col[c]; + LOAD(COL_OFF(col, ioff), REC_PQ_D); + XOR(REC_PQ_D, REC_PQ_X); + XOR(REC_PQ_D, REC_PQ_Y); + } + } + for (; c < ncols; c++) + REC_PQ_SYN_UPDATE(); + } + + XOR_ACC(COL_OFF(qcol, ioff), REC_PQ_Y); + + /* Save Pxy */ + COPY(REC_PQ_X, REC_PQ_D); + + /* Calc X */ + MUL(coeff[MUL_PQ_X], REC_PQ_X); + MUL(coeff[MUL_PQ_Y], REC_PQ_Y); + XOR(REC_PQ_Y, REC_PQ_X); + STORE(COL_OFF(xcol, ioff), REC_PQ_X); + + if (calcy) { + /* Calc Y */ + XOR(REC_PQ_D, REC_PQ_X); + STORE(COL_OFF(ycol, ioff), REC_PQ_X); + } + } +} + +/* + * Reconstruct two data columns using PQ parity + * @rec_method REC_PQ_BLOCK() + * + * @rm RAIDZ map + * @tgtidx array of missing data indexes + */ +static raidz_inline int +raidz_reconstruct_pq_impl(raidz_map_t *rm, const int *tgtidx) +{ + const int x = tgtidx[TARGET_X]; + const int y = tgtidx[TARGET_Y]; + const int ncols = raidz_ncols(rm); + const int nbigcols = raidz_nbigcols(rm); + const size_t xsize = raidz_col_size(rm, x); + const size_t ysize = raidz_col_size(rm, y); + const size_t short_size = raidz_short_size(rm); + unsigned coeff[MUL_CNT]; + + raidz_rec_pq_coeff(rm, tgtidx, coeff); + + raidz_math_begin(); + + /* 0 - short_size */ + REC_PQ_BLOCK(rm, 0, short_size, x, y, coeff, ncols, ncols, B_TRUE); + + /* short_size - xsize */ + REC_PQ_BLOCK(rm, short_size, xsize, x, y, coeff, ncols, nbigcols, + xsize == ysize); + + raidz_math_end(); + + return ((1 << CODE_P) | (1 << CODE_Q)); +} + +/* + * Reconstruct using PR parity + */ + +#define REC_PR_SYN_UPDATE() MUL4(REC_PR_Y) +#define REC_PR_INNER_LOOP(c) \ +{ \ + col = &rm->rm_col[c]; \ + LOAD(COL_OFF(col, ioff), REC_PR_D); \ + REC_PR_SYN_UPDATE(); \ + XOR(REC_PR_D, REC_PR_X); \ + XOR(REC_PR_D, REC_PR_Y); \ +} + +/* + * Reconstruction using PR parity + * @rm RAIDZ map + * @off starting offset + * @end ending offset + * @x missing data column + * @y missing data column + * @coeff multiplication coefficients + * @ncols number of column + * @nbigcols number of big columns + * @calcy calculate second data column + */ +static raidz_inline void +REC_PR_BLOCK(raidz_map_t * const rm, const size_t off, const size_t end, + const int x, const int y, const unsigned *coeff, const int ncols, + const int nbigcols, const boolean_t calcy) +{ + int c; + size_t ioff; + const size_t firstdc = raidz_parity(rm); + raidz_col_t * const pcol = raidz_col_p(rm, CODE_P); + raidz_col_t * const rcol = raidz_col_p(rm, CODE_R); + raidz_col_t * const xcol = raidz_col_p(rm, x); + raidz_col_t * const ycol = raidz_col_p(rm, y); + raidz_col_t *col; + + REC_PR_DEFINE(); + + for (ioff = off; ioff < end; ioff += (REC_PR_STRIDE * sizeof (v_t))) { + LOAD(COL_OFF(pcol, ioff), REC_PR_X); + XOR(REC_PR_Y, REC_PR_Y); + MUL2_SETUP(); + + if (ncols == nbigcols) { + for (c = firstdc; c < x; c++) + REC_PR_INNER_LOOP(c); + + REC_PR_SYN_UPDATE(); + for (c++; c < y; c++) + REC_PR_INNER_LOOP(c); + + REC_PR_SYN_UPDATE(); + for (c++; c < nbigcols; c++) + REC_PR_INNER_LOOP(c); + } else { + for (c = firstdc; c < nbigcols; c++) { + REC_PR_SYN_UPDATE(); + if (c != x && c != y) { + col = &rm->rm_col[c]; + LOAD(COL_OFF(col, ioff), REC_PR_D); + XOR(REC_PR_D, REC_PR_X); + XOR(REC_PR_D, REC_PR_Y); + } + } + for (; c < ncols; c++) + REC_PR_SYN_UPDATE(); + } + + XOR_ACC(COL_OFF(rcol, ioff), REC_PR_Y); + + /* Save Pxy */ + COPY(REC_PR_X, REC_PR_D); + + /* Calc X */ + MUL(coeff[MUL_PR_X], REC_PR_X); + MUL(coeff[MUL_PR_Y], REC_PR_Y); + XOR(REC_PR_Y, REC_PR_X); + STORE(COL_OFF(xcol, ioff), REC_PR_X); + + if (calcy) { + /* Calc Y */ + XOR(REC_PR_D, REC_PR_X); + STORE(COL_OFF(ycol, ioff), REC_PR_X); + } + } +} + + +/* + * Reconstruct two data columns using PR parity + * @rec_method REC_PR_BLOCK() + * + * @rm RAIDZ map + * @tgtidx array of missing data indexes + */ +static raidz_inline int +raidz_reconstruct_pr_impl(raidz_map_t *rm, const int *tgtidx) +{ + const int x = tgtidx[TARGET_X]; + const int y = tgtidx[TARGET_Y]; + const int ncols = raidz_ncols(rm); + const int nbigcols = raidz_nbigcols(rm); + const size_t xsize = raidz_col_size(rm, x); + const size_t ysize = raidz_col_size(rm, y); + const size_t short_size = raidz_short_size(rm); + unsigned coeff[MUL_CNT]; + + raidz_rec_pr_coeff(rm, tgtidx, coeff); + + raidz_math_begin(); + + /* 0 - short_size */ + REC_PR_BLOCK(rm, 0, short_size, x, y, coeff, ncols, ncols, B_TRUE); + + /* short_size - xsize */ + REC_PR_BLOCK(rm, short_size, xsize, x, y, coeff, ncols, nbigcols, + xsize == ysize); + + raidz_math_end(); + + return ((1 << CODE_P) | (1 << CODE_R)); +} + + +/* + * Reconstruct using QR parity + */ + +#define REC_QR_SYN_UPDATE() \ +{ \ + MUL2(REC_QR_X); \ + MUL4(REC_QR_Y); \ +} + +#define REC_QR_INNER_LOOP(c) \ +{ \ + col = &rm->rm_col[c]; \ + LOAD(COL_OFF(col, ioff), REC_QR_D); \ + REC_QR_SYN_UPDATE(); \ + XOR(REC_QR_D, REC_QR_X); \ + XOR(REC_QR_D, REC_QR_Y); \ +} + +/* + * Reconstruction using QR parity + * @rm RAIDZ map + * @off starting offset + * @end ending offset + * @x missing data column + * @y missing data column + * @coeff multiplication coefficients + * @ncols number of column + * @nbigcols number of big columns + * @calcy calculate second data column + */ +static raidz_inline void +REC_QR_BLOCK(raidz_map_t * const rm, const size_t off, const size_t end, + const int x, const int y, const unsigned *coeff, const int ncols, + const int nbigcols, const boolean_t calcy) +{ + int c; + size_t ioff; + const size_t firstdc = raidz_parity(rm); + raidz_col_t * const qcol = raidz_col_p(rm, CODE_Q); + raidz_col_t * const rcol = raidz_col_p(rm, CODE_R); + raidz_col_t * const xcol = raidz_col_p(rm, x); + raidz_col_t * const ycol = raidz_col_p(rm, y); + raidz_col_t *col; + + REC_QR_DEFINE(); + + for (ioff = off; ioff < end; ioff += (REC_QR_STRIDE * sizeof (v_t))) { + MUL2_SETUP(); + XOR(REC_QR_X, REC_QR_X); + XOR(REC_QR_Y, REC_QR_Y); + + if (ncols == nbigcols) { + for (c = firstdc; c < x; c++) + REC_QR_INNER_LOOP(c); + + REC_QR_SYN_UPDATE(); + for (c++; c < y; c++) + REC_QR_INNER_LOOP(c); + + REC_QR_SYN_UPDATE(); + for (c++; c < nbigcols; c++) + REC_QR_INNER_LOOP(c); + } else { + for (c = firstdc; c < nbigcols; c++) { + REC_QR_SYN_UPDATE(); + if (c != x && c != y) { + col = &rm->rm_col[c]; + LOAD(COL_OFF(col, ioff), REC_QR_D); + XOR(REC_QR_D, REC_QR_X); + XOR(REC_QR_D, REC_QR_Y); + } + } + for (; c < ncols; c++) + REC_QR_SYN_UPDATE(); + } + + XOR_ACC(COL_OFF(qcol, ioff), REC_QR_X); + XOR_ACC(COL_OFF(rcol, ioff), REC_QR_Y); + + /* Save Qxy */ + COPY(REC_QR_X, REC_QR_D); + + /* Calc X */ + MUL(coeff[MUL_QR_XQ], REC_QR_X); /* X = Q * xqm */ + XOR(REC_QR_Y, REC_QR_X); /* X = R ^ X */ + MUL(coeff[MUL_QR_X], REC_QR_X); /* X = X * xm */ + STORE(COL_OFF(xcol, ioff), REC_QR_X); + + if (calcy) { + /* Calc Y */ + MUL(coeff[MUL_QR_YQ], REC_QR_D); /* X = Q * xqm */ + XOR(REC_QR_Y, REC_QR_D); /* X = R ^ X */ + MUL(coeff[MUL_QR_Y], REC_QR_D); /* X = X * xm */ + STORE(COL_OFF(ycol, ioff), REC_QR_D); + } + } +} + +/* + * Reconstruct two data columns using QR parity + * @rec_method REC_QR_BLOCK() + * + * @rm RAIDZ map + * @tgtidx array of missing data indexes + */ +static raidz_inline int +raidz_reconstruct_qr_impl(raidz_map_t *rm, const int *tgtidx) +{ + const int x = tgtidx[TARGET_X]; + const int y = tgtidx[TARGET_Y]; + const int ncols = raidz_ncols(rm); + const int nbigcols = raidz_nbigcols(rm); + const size_t xsize = raidz_col_size(rm, x); + const size_t ysize = raidz_col_size(rm, y); + const size_t short_size = raidz_short_size(rm); + unsigned coeff[MUL_CNT]; + + raidz_rec_qr_coeff(rm, tgtidx, coeff); + + raidz_math_begin(); + + /* 0 - short_size */ + REC_QR_BLOCK(rm, 0, short_size, x, y, coeff, ncols, ncols, B_TRUE); + + /* short_size - xsize */ + REC_QR_BLOCK(rm, short_size, xsize, x, y, coeff, ncols, nbigcols, + xsize == ysize); + + raidz_math_end(); + + return ((1 << CODE_Q) | (1 << CODE_R)); +} + +/* + * Reconstruct using PQR parity + */ + +#define REC_PQR_SYN_UPDATE() \ +{ \ + MUL2(REC_PQR_Y); \ + MUL4(REC_PQR_Z); \ +} + +#define REC_PQR_INNER_LOOP(c) \ +{ \ + col = &rm->rm_col[(c)]; \ + LOAD(COL_OFF(col, ioff), REC_PQR_D); \ + REC_PQR_SYN_UPDATE(); \ + XOR(REC_PQR_D, REC_PQR_X); \ + XOR(REC_PQR_D, REC_PQR_Y); \ + XOR(REC_PQR_D, REC_PQR_Z); \ +} + +/* + * Reconstruction using PQR parity + * @rm RAIDZ map + * @off starting offset + * @end ending offset + * @x missing data column + * @y missing data column + * @z missing data column + * @coeff multiplication coefficients + * @ncols number of column + * @nbigcols number of big columns + * @calcy calculate second data column + * @calcz calculate third data column + */ +static raidz_inline void +REC_PQR_BLOCK(raidz_map_t * const rm, const size_t off, const size_t end, + const int x, const int y, const int z, const unsigned *coeff, + const int ncols, const int nbigcols, const boolean_t calcy, + const boolean_t calcz) +{ + int c; + size_t ioff; + const size_t firstdc = raidz_parity(rm); + raidz_col_t * const pcol = raidz_col_p(rm, CODE_P); + raidz_col_t * const qcol = raidz_col_p(rm, CODE_Q); + raidz_col_t * const rcol = raidz_col_p(rm, CODE_R); + raidz_col_t * const xcol = raidz_col_p(rm, x); + raidz_col_t * const ycol = raidz_col_p(rm, y); + raidz_col_t * const zcol = raidz_col_p(rm, z); + raidz_col_t *col; + + REC_PQR_DEFINE(); + + for (ioff = off; ioff < end; ioff += (REC_PQR_STRIDE * sizeof (v_t))) { + MUL2_SETUP(); + LOAD(COL_OFF(pcol, ioff), REC_PQR_X); + XOR(REC_PQR_Y, REC_PQR_Y); + XOR(REC_PQR_Z, REC_PQR_Z); + + if (ncols == nbigcols) { + for (c = firstdc; c < x; c++) + REC_PQR_INNER_LOOP(c); + + REC_PQR_SYN_UPDATE(); + for (c++; c < y; c++) + REC_PQR_INNER_LOOP(c); + + REC_PQR_SYN_UPDATE(); + for (c++; c < z; c++) + REC_PQR_INNER_LOOP(c); + + REC_PQR_SYN_UPDATE(); + for (c++; c < nbigcols; c++) + REC_PQR_INNER_LOOP(c); + } else { + for (c = firstdc; c < nbigcols; c++) { + REC_PQR_SYN_UPDATE(); + if (c != x && c != y && c != z) { + col = &rm->rm_col[c]; + LOAD(COL_OFF(col, ioff), REC_PQR_D); + XOR(REC_PQR_D, REC_PQR_X); + XOR(REC_PQR_D, REC_PQR_Y); + XOR(REC_PQR_D, REC_PQR_Z); + } + } + for (; c < ncols; c++) + REC_PQR_SYN_UPDATE(); + } + + XOR_ACC(COL_OFF(qcol, ioff), REC_PQR_Y); + XOR_ACC(COL_OFF(rcol, ioff), REC_PQR_Z); + + /* Save Pxyz and Qxyz */ + COPY(REC_PQR_X, REC_PQR_XS); + COPY(REC_PQR_Y, REC_PQR_YS); + + /* Calc X */ + MUL(coeff[MUL_PQR_XP], REC_PQR_X); /* Xp = Pxyz * xp */ + MUL(coeff[MUL_PQR_XQ], REC_PQR_Y); /* Xq = Qxyz * xq */ + XOR(REC_PQR_Y, REC_PQR_X); + MUL(coeff[MUL_PQR_XR], REC_PQR_Z); /* Xr = Rxyz * xr */ + XOR(REC_PQR_Z, REC_PQR_X); /* X = Xp + Xq + Xr */ + STORE(COL_OFF(xcol, ioff), REC_PQR_X); + + if (calcy) { + /* Calc Y */ + XOR(REC_PQR_X, REC_PQR_XS); /* Pyz = Pxyz + X */ + MUL(coeff[MUL_PQR_YU], REC_PQR_X); /* Xq = X * upd_q */ + XOR(REC_PQR_X, REC_PQR_YS); /* Qyz = Qxyz + Xq */ + COPY(REC_PQR_XS, REC_PQR_X); /* restore Pyz */ + MUL(coeff[MUL_PQR_YP], REC_PQR_X); /* Yp = Pyz * yp */ + MUL(coeff[MUL_PQR_YQ], REC_PQR_YS); /* Yq = Qyz * yq */ + XOR(REC_PQR_X, REC_PQR_YS); /* Y = Yp + Yq */ + STORE(COL_OFF(ycol, ioff), REC_PQR_YS); + } + + if (calcz) { + /* Calc Z */ + XOR(REC_PQR_XS, REC_PQR_YS); /* Z = Pz = Pyz + Y */ + STORE(COL_OFF(zcol, ioff), REC_PQR_YS); + } + } +} + +/* + * Reconstruct three data columns using PQR parity + * @rec_method REC_PQR_BLOCK() + * + * @rm RAIDZ map + * @tgtidx array of missing data indexes + */ +static raidz_inline int +raidz_reconstruct_pqr_impl(raidz_map_t *rm, const int *tgtidx) +{ + const int x = tgtidx[TARGET_X]; + const int y = tgtidx[TARGET_Y]; + const int z = tgtidx[TARGET_Z]; + const int ncols = raidz_ncols(rm); + const int nbigcols = raidz_nbigcols(rm); + const size_t xsize = raidz_col_size(rm, x); + const size_t ysize = raidz_col_size(rm, y); + const size_t zsize = raidz_col_size(rm, z); + const size_t short_size = raidz_short_size(rm); + unsigned coeff[MUL_CNT]; + + raidz_rec_pqr_coeff(rm, tgtidx, coeff); + + raidz_math_begin(); + + /* 0 - short_size */ + REC_PQR_BLOCK(rm, 0, short_size, x, y, z, coeff, ncols, ncols, + B_TRUE, B_TRUE); + + /* short_size - xsize */ + REC_PQR_BLOCK(rm, short_size, xsize, x, y, z, coeff, ncols, nbigcols, + xsize == ysize, xsize == zsize); + + raidz_math_end(); + + return ((1 << CODE_P) | (1 << CODE_Q) | (1 << CODE_R)); +} + +#endif /* _VDEV_RAIDZ_MATH_IMPL_H */ diff --git a/module/zfs/vdev_raidz_math_scalar.c b/module/zfs/vdev_raidz_math_scalar.c new file mode 100644 index 000000000..39b90a344 --- /dev/null +++ b/module/zfs/vdev_raidz_math_scalar.c @@ -0,0 +1,302 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright (C) 2016 Gvozden Nešković. All rights reserved. + */ + +#include <sys/vdev_raidz_impl.h> + +/* + * Provide native CPU scalar routines. + * Support 32bit and 64bit CPUs. + */ +#if ((~(0x0ULL)) >> 24) == 0xffULL +#define ELEM_SIZE 4 +typedef uint32_t iv_t; +#elif ((~(0x0ULL)) >> 56) == 0xffULL +#define ELEM_SIZE 8 +typedef uint64_t iv_t; +#endif + +/* + * Vector type used in scalar implementation + * + * The union is expected to be of native CPU register size. Since addition + * uses XOR operation, it can be performed an all byte elements at once. + * Multiplication requires per byte access. + */ +typedef union { + iv_t e; + uint8_t b[ELEM_SIZE]; +} v_t; + +/* + * Precomputed lookup tables for multiplication by a constant + * + * Reconstruction path requires multiplication by a constant factors. Instead of + * performing two step lookup (log & exp tables), a direct lookup can be used + * instead. Multiplication of element 'a' by a constant 'c' is obtained as: + * + * r = vdev_raidz_mul_lt[c_log][a]; + * + * where c_log = vdev_raidz_log2[c]. Log of coefficient factors is used because + * they are faster to obtain while solving the syndrome equations. + * + * PERFORMANCE NOTE: + * Even though the complete lookup table uses 64kiB, only relatively small + * portion of it is used at the same time. Following shows number of accessed + * bytes for different cases: + * - 1 failed disk: 256B (1 mul. coefficient) + * - 2 failed disks: 512B (2 mul. coefficients) + * - 3 failed disks: 1536B (6 mul. coefficients) + * + * Size of actually accessed lookup table regions is only larger for + * reconstruction of 3 failed disks, when compared to traditional log/exp + * method. But since the result is obtained in one lookup step performance is + * doubled. + */ +static uint8_t vdev_raidz_mul_lt[256][256] __attribute__((aligned(256))); + +static void +raidz_init_scalar(void) +{ + int c, i; + for (c = 0; c < 256; c++) + for (i = 0; i < 256; i++) + vdev_raidz_mul_lt[c][i] = gf_mul(c, i); + +} + +#define PREFETCHNTA(ptr, offset) {} +#define PREFETCH(ptr, offset) {} + +#define XOR_ACC(src, acc) acc.e ^= ((v_t *)src)[0].e +#define XOR(src, acc) acc.e ^= src.e +#define COPY(src, dst) dst = src +#define LOAD(src, val) val = ((v_t *)src)[0] +#define STORE(dst, val) ((v_t *)dst)[0] = val + +/* + * Constants used for optimized multiplication by 2. + */ +static const struct { + iv_t mod; + iv_t mask; + iv_t msb; +} scalar_mul2_consts = { +#if ELEM_SIZE == 8 + .mod = 0x1d1d1d1d1d1d1d1dULL, + .mask = 0xfefefefefefefefeULL, + .msb = 0x8080808080808080ULL, +#else + .mod = 0x1d1d1d1dULL, + .mask = 0xfefefefeULL, + .msb = 0x80808080ULL, +#endif +}; + +#define MUL2_SETUP() {} + +#define MUL2(a) \ +{ \ + iv_t _mask; \ + \ + _mask = (a).e & scalar_mul2_consts.msb; \ + _mask = (_mask << 1) - (_mask >> 7); \ + (a).e = ((a).e << 1) & scalar_mul2_consts.mask; \ + (a).e = (a).e ^ (_mask & scalar_mul2_consts.mod); \ +} + +#define MUL4(a) \ +{ \ + MUL2(a); \ + MUL2(a); \ +} + +#define MUL(c, a) \ +{ \ + const uint8_t *mul_lt = vdev_raidz_mul_lt[c]; \ + switch (ELEM_SIZE) { \ + case 8: \ + a.b[7] = mul_lt[a.b[7]]; \ + a.b[6] = mul_lt[a.b[6]]; \ + a.b[5] = mul_lt[a.b[5]]; \ + a.b[4] = mul_lt[a.b[4]]; \ + case 4: \ + a.b[3] = mul_lt[a.b[3]]; \ + a.b[2] = mul_lt[a.b[2]]; \ + a.b[1] = mul_lt[a.b[1]]; \ + a.b[0] = mul_lt[a.b[0]]; \ + break; \ + } \ +} + +#define raidz_math_begin() {} +#define raidz_math_end() {} + +#define GEN_P_DEFINE() v_t p0 +#define GEN_P_STRIDE 1 +#define GEN_P_P p0 + +#define GEN_PQ_DEFINE() v_t d0, p0, q0 +#define GEN_PQ_STRIDE 1 +#define GEN_PQ_D d0 +#define GEN_PQ_P p0 +#define GEN_PQ_Q q0 + +#define GEN_PQR_DEFINE() v_t d0, p0, q0, r0 +#define GEN_PQR_STRIDE 1 +#define GEN_PQR_D d0 +#define GEN_PQR_P p0 +#define GEN_PQR_Q q0 +#define GEN_PQR_R r0 + +#define REC_P_DEFINE() v_t x0 +#define REC_P_STRIDE 1 +#define REC_P_X x0 + +#define REC_Q_DEFINE() v_t x0 +#define REC_Q_STRIDE 1 +#define REC_Q_X x0 + +#define REC_R_DEFINE() v_t x0 +#define REC_R_STRIDE 1 +#define REC_R_X x0 + +#define REC_PQ_DEFINE() v_t x0, y0, d0 +#define REC_PQ_STRIDE 1 +#define REC_PQ_X x0 +#define REC_PQ_Y y0 +#define REC_PQ_D d0 + +#define REC_PR_DEFINE() v_t x0, y0, d0 +#define REC_PR_STRIDE 1 +#define REC_PR_X x0 +#define REC_PR_Y y0 +#define REC_PR_D d0 + +#define REC_QR_DEFINE() v_t x0, y0, d0 +#define REC_QR_STRIDE 1 +#define REC_QR_X x0 +#define REC_QR_Y y0 +#define REC_QR_D d0 + +#define REC_PQR_DEFINE() v_t x0, y0, z0, d0, t0 +#define REC_PQR_STRIDE 1 +#define REC_PQR_X x0 +#define REC_PQR_Y y0 +#define REC_PQR_Z z0 +#define REC_PQR_D d0 +#define REC_PQR_XS d0 +#define REC_PQR_YS t0 + +#include "vdev_raidz_math_impl.h" + +DEFINE_GEN_METHODS(scalar); +DEFINE_REC_METHODS(scalar); + +static boolean_t +raidz_will_scalar_work(void) +{ + return (B_TRUE); /* always */ +} + +const raidz_impl_ops_t vdev_raidz_scalar_impl = { + .init = raidz_init_scalar, + .fini = NULL, + .gen = RAIDZ_GEN_METHODS(scalar), + .rec = RAIDZ_REC_METHODS(scalar), + .is_supported = &raidz_will_scalar_work, + .name = "scalar" +}; + +/* Powers of 2 in the RAID-Z Galois field. */ +const uint8_t vdev_raidz_pow2[256] __attribute__((aligned(256))) = { + 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, + 0x1d, 0x3a, 0x74, 0xe8, 0xcd, 0x87, 0x13, 0x26, + 0x4c, 0x98, 0x2d, 0x5a, 0xb4, 0x75, 0xea, 0xc9, + 0x8f, 0x03, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, + 0x9d, 0x27, 0x4e, 0x9c, 0x25, 0x4a, 0x94, 0x35, + 0x6a, 0xd4, 0xb5, 0x77, 0xee, 0xc1, 0x9f, 0x23, + 0x46, 0x8c, 0x05, 0x0a, 0x14, 0x28, 0x50, 0xa0, + 0x5d, 0xba, 0x69, 0xd2, 0xb9, 0x6f, 0xde, 0xa1, + 0x5f, 0xbe, 0x61, 0xc2, 0x99, 0x2f, 0x5e, 0xbc, + 0x65, 0xca, 0x89, 0x0f, 0x1e, 0x3c, 0x78, 0xf0, + 0xfd, 0xe7, 0xd3, 0xbb, 0x6b, 0xd6, 0xb1, 0x7f, + 0xfe, 0xe1, 0xdf, 0xa3, 0x5b, 0xb6, 0x71, 0xe2, + 0xd9, 0xaf, 0x43, 0x86, 0x11, 0x22, 0x44, 0x88, + 0x0d, 0x1a, 0x34, 0x68, 0xd0, 0xbd, 0x67, 0xce, + 0x81, 0x1f, 0x3e, 0x7c, 0xf8, 0xed, 0xc7, 0x93, + 0x3b, 0x76, 0xec, 0xc5, 0x97, 0x33, 0x66, 0xcc, + 0x85, 0x17, 0x2e, 0x5c, 0xb8, 0x6d, 0xda, 0xa9, + 0x4f, 0x9e, 0x21, 0x42, 0x84, 0x15, 0x2a, 0x54, + 0xa8, 0x4d, 0x9a, 0x29, 0x52, 0xa4, 0x55, 0xaa, + 0x49, 0x92, 0x39, 0x72, 0xe4, 0xd5, 0xb7, 0x73, + 0xe6, 0xd1, 0xbf, 0x63, 0xc6, 0x91, 0x3f, 0x7e, + 0xfc, 0xe5, 0xd7, 0xb3, 0x7b, 0xf6, 0xf1, 0xff, + 0xe3, 0xdb, 0xab, 0x4b, 0x96, 0x31, 0x62, 0xc4, + 0x95, 0x37, 0x6e, 0xdc, 0xa5, 0x57, 0xae, 0x41, + 0x82, 0x19, 0x32, 0x64, 0xc8, 0x8d, 0x07, 0x0e, + 0x1c, 0x38, 0x70, 0xe0, 0xdd, 0xa7, 0x53, 0xa6, + 0x51, 0xa2, 0x59, 0xb2, 0x79, 0xf2, 0xf9, 0xef, + 0xc3, 0x9b, 0x2b, 0x56, 0xac, 0x45, 0x8a, 0x09, + 0x12, 0x24, 0x48, 0x90, 0x3d, 0x7a, 0xf4, 0xf5, + 0xf7, 0xf3, 0xfb, 0xeb, 0xcb, 0x8b, 0x0b, 0x16, + 0x2c, 0x58, 0xb0, 0x7d, 0xfa, 0xe9, 0xcf, 0x83, + 0x1b, 0x36, 0x6c, 0xd8, 0xad, 0x47, 0x8e, 0x01 +}; + +/* Logs of 2 in the RAID-Z Galois field. */ +const uint8_t vdev_raidz_log2[256] __attribute__((aligned(256))) = { + 0x00, 0x00, 0x01, 0x19, 0x02, 0x32, 0x1a, 0xc6, + 0x03, 0xdf, 0x33, 0xee, 0x1b, 0x68, 0xc7, 0x4b, + 0x04, 0x64, 0xe0, 0x0e, 0x34, 0x8d, 0xef, 0x81, + 0x1c, 0xc1, 0x69, 0xf8, 0xc8, 0x08, 0x4c, 0x71, + 0x05, 0x8a, 0x65, 0x2f, 0xe1, 0x24, 0x0f, 0x21, + 0x35, 0x93, 0x8e, 0xda, 0xf0, 0x12, 0x82, 0x45, + 0x1d, 0xb5, 0xc2, 0x7d, 0x6a, 0x27, 0xf9, 0xb9, + 0xc9, 0x9a, 0x09, 0x78, 0x4d, 0xe4, 0x72, 0xa6, + 0x06, 0xbf, 0x8b, 0x62, 0x66, 0xdd, 0x30, 0xfd, + 0xe2, 0x98, 0x25, 0xb3, 0x10, 0x91, 0x22, 0x88, + 0x36, 0xd0, 0x94, 0xce, 0x8f, 0x96, 0xdb, 0xbd, + 0xf1, 0xd2, 0x13, 0x5c, 0x83, 0x38, 0x46, 0x40, + 0x1e, 0x42, 0xb6, 0xa3, 0xc3, 0x48, 0x7e, 0x6e, + 0x6b, 0x3a, 0x28, 0x54, 0xfa, 0x85, 0xba, 0x3d, + 0xca, 0x5e, 0x9b, 0x9f, 0x0a, 0x15, 0x79, 0x2b, + 0x4e, 0xd4, 0xe5, 0xac, 0x73, 0xf3, 0xa7, 0x57, + 0x07, 0x70, 0xc0, 0xf7, 0x8c, 0x80, 0x63, 0x0d, + 0x67, 0x4a, 0xde, 0xed, 0x31, 0xc5, 0xfe, 0x18, + 0xe3, 0xa5, 0x99, 0x77, 0x26, 0xb8, 0xb4, 0x7c, + 0x11, 0x44, 0x92, 0xd9, 0x23, 0x20, 0x89, 0x2e, + 0x37, 0x3f, 0xd1, 0x5b, 0x95, 0xbc, 0xcf, 0xcd, + 0x90, 0x87, 0x97, 0xb2, 0xdc, 0xfc, 0xbe, 0x61, + 0xf2, 0x56, 0xd3, 0xab, 0x14, 0x2a, 0x5d, 0x9e, + 0x84, 0x3c, 0x39, 0x53, 0x47, 0x6d, 0x41, 0xa2, + 0x1f, 0x2d, 0x43, 0xd8, 0xb7, 0x7b, 0xa4, 0x76, + 0xc4, 0x17, 0x49, 0xec, 0x7f, 0x0c, 0x6f, 0xf6, + 0x6c, 0xa1, 0x3b, 0x52, 0x29, 0x9d, 0x55, 0xaa, + 0xfb, 0x60, 0x86, 0xb1, 0xbb, 0xcc, 0x3e, 0x5a, + 0xcb, 0x59, 0x5f, 0xb0, 0x9c, 0xa9, 0xa0, 0x51, + 0x0b, 0xf5, 0x16, 0xeb, 0x7a, 0x75, 0x2c, 0xd7, + 0x4f, 0xae, 0xd5, 0xe9, 0xe6, 0xe7, 0xad, 0xe8, + 0x74, 0xd6, 0xf4, 0xea, 0xa8, 0x50, 0x58, 0xaf, +}; diff --git a/module/zfs/vdev_raidz_math_sse.c b/module/zfs/vdev_raidz_math_sse.c new file mode 100644 index 000000000..2a22e79b8 --- /dev/null +++ b/module/zfs/vdev_raidz_math_sse.c @@ -0,0 +1,2456 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (C) 2016 Gvozden Nešković. All rights reserved. + */ + +#include <sys/isa_defs.h> + +#if defined(__x86_64) && defined(HAVE_SSSE3) + +#include <sys/types.h> +#include <linux/simd_x86.h> + +#define __asm __asm__ __volatile__ + +#define _REG_CNT(_0, _1, _2, _3, _4, _5, _6, _7, N, ...) N +#define REG_CNT(r...) _REG_CNT(r, 8, 7, 6, 5, 4, 3, 2, 1) + +#define VR0_(REG, ...) "xmm"#REG +#define VR1_(_1, REG, ...) "xmm"#REG +#define VR2_(_1, _2, REG, ...) "xmm"#REG +#define VR3_(_1, _2, _3, REG, ...) "xmm"#REG +#define VR4_(_1, _2, _3, _4, REG, ...) "xmm"#REG +#define VR5_(_1, _2, _3, _4, _5, REG, ...) "xmm"#REG +#define VR6_(_1, _2, _3, _4, _5, _6, REG, ...) "xmm"#REG +#define VR7_(_1, _2, _3, _4, _5, _6, _7, REG, ...) "xmm"#REG + +#define VR0(r...) VR0_(r) +#define VR1(r...) VR1_(r) +#define VR2(r...) VR2_(r, 1) +#define VR3(r...) VR3_(r, 1, 2) +#define VR4(r...) VR4_(r, 1) +#define VR5(r...) VR5_(r, 1, 2) +#define VR6(r...) VR6_(r, 1, 2, 3) +#define VR7(r...) VR7_(r, 1, 2, 3, 4) + +#define R_01(REG1, REG2, ...) REG1, REG2 +#define _R_23(_0, _1, REG2, REG3, ...) REG2, REG3 +#define R_23(REG...) _R_23(REG, 1, 2, 3) + +#define ASM_BUG() ASSERT(0) + +const uint8_t gf_clmul_mod_lt[4*256][16]; + +#define ELEM_SIZE 16 + +typedef struct v { + uint8_t b[ELEM_SIZE] __attribute__((aligned(ELEM_SIZE))); +} v_t; + +#define PREFETCHNTA(ptr, offset) \ +{ \ + __asm( \ + "prefetchnta " #offset "(%[MEM])\n" \ + : : [MEM] "r" (ptr)); \ +} + +#define PREFETCH(ptr, offset) \ +{ \ + __asm( \ + "prefetcht0 " #offset "(%[MEM])\n" \ + : : [MEM] "r" (ptr)); \ +} + +#define XOR_ACC(src, r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 4: \ + __asm( \ + "pxor 0x00(%[SRC]), %%" VR0(r) "\n" \ + "pxor 0x10(%[SRC]), %%" VR1(r) "\n" \ + "pxor 0x20(%[SRC]), %%" VR2(r) "\n" \ + "pxor 0x30(%[SRC]), %%" VR3(r) "\n" \ + : : [SRC] "r" (src)); \ + break; \ + case 2: \ + __asm( \ + "pxor 0x00(%[SRC]), %%" VR0(r) "\n" \ + "pxor 0x10(%[SRC]), %%" VR1(r) "\n" \ + : : [SRC] "r" (src)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define XOR(r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 8: \ + __asm( \ + "pxor %" VR0(r) ", %" VR4(r) "\n" \ + "pxor %" VR1(r) ", %" VR5(r) "\n" \ + "pxor %" VR2(r) ", %" VR6(r) "\n" \ + "pxor %" VR3(r) ", %" VR7(r)); \ + break; \ + case 4: \ + __asm( \ + "pxor %" VR0(r) ", %" VR2(r) "\n" \ + "pxor %" VR1(r) ", %" VR3(r)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define COPY(r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 8: \ + __asm( \ + "movdqa %" VR0(r) ", %" VR4(r) "\n" \ + "movdqa %" VR1(r) ", %" VR5(r) "\n" \ + "movdqa %" VR2(r) ", %" VR6(r) "\n" \ + "movdqa %" VR3(r) ", %" VR7(r)); \ + break; \ + case 4: \ + __asm( \ + "movdqa %" VR0(r) ", %" VR2(r) "\n" \ + "movdqa %" VR1(r) ", %" VR3(r)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define LOAD(src, r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 4: \ + __asm( \ + "movdqa 0x00(%[SRC]), %%" VR0(r) "\n" \ + "movdqa 0x10(%[SRC]), %%" VR1(r) "\n" \ + "movdqa 0x20(%[SRC]), %%" VR2(r) "\n" \ + "movdqa 0x30(%[SRC]), %%" VR3(r) "\n" \ + : : [SRC] "r" (src)); \ + break; \ + case 2: \ + __asm( \ + "movdqa 0x00(%[SRC]), %%" VR0(r) "\n" \ + "movdqa 0x10(%[SRC]), %%" VR1(r) "\n" \ + : : [SRC] "r" (src)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define STORE(dst, r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 4: \ + __asm( \ + "movdqa %%" VR0(r)", 0x00(%[DST])\n" \ + "movdqa %%" VR1(r)", 0x10(%[DST])\n" \ + "movdqa %%" VR2(r)", 0x20(%[DST])\n" \ + "movdqa %%" VR3(r)", 0x30(%[DST])\n" \ + : : [DST] "r" (dst)); \ + break; \ + case 2: \ + __asm( \ + "movdqa %%" VR0(r)", 0x00(%[DST])\n" \ + "movdqa %%" VR1(r)", 0x10(%[DST])\n" \ + : : [DST] "r" (dst)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define MUL2_SETUP() \ +{ \ + __asm( \ + "movd %[mask], %%xmm15\n" \ + "pshufd $0x0, %%xmm15, %%xmm15\n" \ + : : [mask] "r" (0x1d1d1d1d)); \ +} + +#define _MUL2_x2(r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 2: \ + __asm( \ + "pxor %xmm14, %xmm14\n" \ + "pxor %xmm13, %xmm13\n" \ + "pcmpgtb %" VR0(r)", %xmm14\n" \ + "pcmpgtb %" VR1(r)", %xmm13\n" \ + "pand %xmm15, %xmm14\n" \ + "pand %xmm15, %xmm13\n" \ + "paddb %" VR0(r)", %" VR0(r) "\n" \ + "paddb %" VR1(r)", %" VR1(r) "\n" \ + "pxor %xmm14, %" VR0(r) "\n" \ + "pxor %xmm13, %" VR1(r)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define MUL2(r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 4: \ + _MUL2_x2(R_01(r)); \ + _MUL2_x2(R_23(r)); \ + break; \ + case 2: \ + _MUL2_x2(r); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define MUL4(r...) \ +{ \ + MUL2(r); \ + MUL2(r); \ +} + +#define _0f "xmm15" +#define _a_save "xmm14" +#define _b_save "xmm13" +#define _lt_mod_a "xmm12" +#define _lt_clmul_a "xmm11" +#define _lt_mod_b "xmm10" +#define _lt_clmul_b "xmm15" + +#define _MULx2(c, r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 2: \ + __asm( \ + /* lts for upper part */ \ + "movd %[mask], %%" _0f "\n" \ + "pshufd $0x0, %%" _0f ", %%" _0f "\n" \ + "movdqa 0x00(%[lt]), %%" _lt_mod_a "\n" \ + "movdqa 0x10(%[lt]), %%" _lt_clmul_a "\n" \ + /* upper part */ \ + "movdqa %%" VR0(r) ", %%" _a_save "\n" \ + "movdqa %%" VR1(r) ", %%" _b_save "\n" \ + "psraw $0x4, %%" VR0(r) "\n" \ + "psraw $0x4, %%" VR1(r) "\n" \ + "pand %%" _0f ", %%" _a_save "\n" \ + "pand %%" _0f ", %%" _b_save "\n" \ + "pand %%" _0f ", %%" VR0(r) "\n" \ + "pand %%" _0f ", %%" VR1(r) "\n" \ + \ + "movdqa %%" _lt_mod_a ", %%" _lt_mod_b "\n" \ + "movdqa %%" _lt_clmul_a ", %%" _lt_clmul_b "\n" \ + \ + "pshufb %%" VR0(r) ",%%" _lt_mod_a "\n" \ + "pshufb %%" VR1(r) ",%%" _lt_mod_b "\n" \ + "pshufb %%" VR0(r) ",%%" _lt_clmul_a "\n" \ + "pshufb %%" VR1(r) ",%%" _lt_clmul_b "\n" \ + \ + "pxor %%" _lt_mod_a ",%%" _lt_clmul_a "\n" \ + "pxor %%" _lt_mod_b ",%%" _lt_clmul_b "\n" \ + "movdqa %%" _lt_clmul_a ",%%" VR0(r) "\n" \ + "movdqa %%" _lt_clmul_b ",%%" VR1(r) "\n" \ + /* lts for lower part */ \ + "movdqa 0x20(%[lt]), %%" _lt_mod_a "\n" \ + "movdqa 0x30(%[lt]), %%" _lt_clmul_a "\n" \ + "movdqa %%" _lt_mod_a ", %%" _lt_mod_b "\n" \ + "movdqa %%" _lt_clmul_a ", %%" _lt_clmul_b "\n" \ + /* lower part */ \ + "pshufb %%" _a_save ",%%" _lt_mod_a "\n" \ + "pshufb %%" _b_save ",%%" _lt_mod_b "\n" \ + "pshufb %%" _a_save ",%%" _lt_clmul_a "\n" \ + "pshufb %%" _b_save ",%%" _lt_clmul_b "\n" \ + \ + "pxor %%" _lt_mod_a ",%%" VR0(r) "\n" \ + "pxor %%" _lt_mod_b ",%%" VR1(r) "\n" \ + "pxor %%" _lt_clmul_a ",%%" VR0(r) "\n" \ + "pxor %%" _lt_clmul_b ",%%" VR1(r) "\n" \ + : : [mask] "r" (0x0f0f0f0f), \ + [lt] "r" (gf_clmul_mod_lt[4*(c)])); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define MUL(c, r...) \ +{ \ + switch (REG_CNT(r)) { \ + case 4: \ + _MULx2(c, R_23(r)); \ + _MULx2(c, R_01(r)); \ + break; \ + case 2: \ + _MULx2(c, R_01(r)); \ + break; \ + default: \ + ASM_BUG(); \ + } \ +} + +#define raidz_math_begin() kfpu_begin() +#define raidz_math_end() kfpu_end() + +#define GEN_P_DEFINE() {} +#define GEN_P_STRIDE 4 +#define GEN_P_P 0, 1, 2, 3 + +#define GEN_PQ_DEFINE() {} +#define GEN_PQ_STRIDE 4 +#define GEN_PQ_D 0, 1, 2, 3 +#define GEN_PQ_P 4, 5, 6, 7 +#define GEN_PQ_Q 8, 9, 10, 11 + +#define GEN_PQR_DEFINE() {} +#define GEN_PQR_STRIDE 2 +#define GEN_PQR_D 0, 1 +#define GEN_PQR_P 2, 3 +#define GEN_PQR_Q 4, 5 +#define GEN_PQR_R 6, 7 + +#define REC_P_DEFINE() {} +#define REC_P_STRIDE 4 +#define REC_P_X 0, 1, 2, 3 + +#define REC_Q_DEFINE() {} +#define REC_Q_STRIDE 4 +#define REC_Q_X 0, 1, 2, 3 + +#define REC_R_DEFINE() {} +#define REC_R_STRIDE 4 +#define REC_R_X 0, 1, 2, 3 + +#define REC_PQ_DEFINE() {} +#define REC_PQ_STRIDE 2 +#define REC_PQ_X 0, 1 +#define REC_PQ_Y 2, 3 +#define REC_PQ_D 4, 5 + +#define REC_PR_DEFINE() {} +#define REC_PR_STRIDE 2 +#define REC_PR_X 0, 1 +#define REC_PR_Y 2, 3 +#define REC_PR_D 4, 5 + +#define REC_QR_DEFINE() {} +#define REC_QR_STRIDE 2 +#define REC_QR_X 0, 1 +#define REC_QR_Y 2, 3 +#define REC_QR_D 4, 5 + +#define REC_PQR_DEFINE() {} +#define REC_PQR_STRIDE 2 +#define REC_PQR_X 0, 1 +#define REC_PQR_Y 2, 3 +#define REC_PQR_Z 4, 5 +#define REC_PQR_D 6, 7 +#define REC_PQR_XS 6, 7 +#define REC_PQR_YS 8, 9 + + +#include <sys/vdev_raidz_impl.h> +#include "vdev_raidz_math_impl.h" + +DEFINE_GEN_METHODS(sse); +DEFINE_REC_METHODS(sse); + +static boolean_t +raidz_will_sse_work(void) +{ + return (zfs_sse_available() && zfs_sse2_available() && + zfs_ssse3_available()); +} + +const raidz_impl_ops_t vdev_raidz_sse_impl = { + .init = NULL, + .fini = NULL, + .gen = RAIDZ_GEN_METHODS(sse), + .rec = RAIDZ_REC_METHODS(sse), + .is_supported = &raidz_will_sse_work, + .name = "sse" +}; + +#endif /* defined(__x86_64) && defined(HAVE_SSSE3) */ + + +#if defined(__x86_64) && (defined(HAVE_SSSE3) || defined(HAVE_AVX2)) + +const uint8_t +__attribute__((aligned(256))) gf_clmul_mod_lt[4*256][16] = { + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, + 0x80, 0x90, 0xa0, 0xb0, 0xc0, 0xd0, 0xe0, 0xf0 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x1d }, + { 0x00, 0x20, 0x40, 0x60, 0x80, 0xa0, 0xc0, 0xe0, + 0x00, 0x20, 0x40, 0x60, 0x80, 0xa0, 0xc0, 0xe0 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, + 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x1d }, + { 0x00, 0x30, 0x60, 0x50, 0xc0, 0xf0, 0xa0, 0x90, + 0x80, 0xb0, 0xe0, 0xd0, 0x40, 0x70, 0x20, 0x10 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x03, 0x06, 0x05, 0x0c, 0x0f, 0x0a, 0x09, + 0x18, 0x1b, 0x1e, 0x1d, 0x14, 0x17, 0x12, 0x11 }, + { 0x00, 0x00, 0x00, 0x00, 0x1d, 0x1d, 0x1d, 0x1d, + 0x3a, 0x3a, 0x3a, 0x3a, 0x27, 0x27, 0x27, 0x27 }, + { 0x00, 0x40, 0x80, 0xc0, 0x00, 0x40, 0x80, 0xc0, + 0x00, 0x40, 0x80, 0xc0, 0x00, 0x40, 0x80, 0xc0 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x04, 0x08, 0x0c, 0x10, 0x14, 0x18, 0x1c, + 0x20, 0x24, 0x28, 0x2c, 0x30, 0x34, 0x38, 0x3c }, + { 0x00, 0x00, 0x00, 0x00, 0x1d, 0x1d, 0x1d, 0x1d, + 0x3a, 0x3a, 0x3a, 0x3a, 0x27, 0x27, 0x27, 0x27 }, + { 0x00, 0x50, 0xa0, 0xf0, 0x40, 0x10, 0xe0, 0xb0, + 0x80, 0xd0, 0x20, 0x70, 0xc0, 0x90, 0x60, 0x30 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x05, 0x0a, 0x0f, 0x14, 0x11, 0x1e, 0x1b, + 0x28, 0x2d, 0x22, 0x27, 0x3c, 0x39, 0x36, 0x33 }, + { 0x00, 0x00, 0x00, 0x00, 0x1d, 0x1d, 0x1d, 0x1d, + 0x27, 0x27, 0x27, 0x27, 0x3a, 0x3a, 0x3a, 0x3a }, + { 0x00, 0x60, 0xc0, 0xa0, 0x80, 0xe0, 0x40, 0x20, + 0x00, 0x60, 0xc0, 0xa0, 0x80, 0xe0, 0x40, 0x20 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x06, 0x0c, 0x0a, 0x18, 0x1e, 0x14, 0x12, + 0x30, 0x36, 0x3c, 0x3a, 0x28, 0x2e, 0x24, 0x22 }, + { 0x00, 0x00, 0x00, 0x00, 0x1d, 0x1d, 0x1d, 0x1d, + 0x27, 0x27, 0x27, 0x27, 0x3a, 0x3a, 0x3a, 0x3a }, + { 0x00, 0x70, 0xe0, 0x90, 0xc0, 0xb0, 0x20, 0x50, + 0x80, 0xf0, 0x60, 0x10, 0x40, 0x30, 0xa0, 0xd0 }, + { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x07, 0x0e, 0x09, 0x1c, 0x1b, 0x12, 0x15, + 0x38, 0x3f, 0x36, 0x31, 0x24, 0x23, 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0x4e, 0x74, 0x74, 0x69, 0x69 }, + { 0x00, 0xf7, 0xee, 0x19, 0xdc, 0x2b, 0x32, 0xc5, + 0xb8, 0x4f, 0x56, 0xa1, 0x64, 0x93, 0x8a, 0x7d }, + { 0x00, 0xbb, 0x76, 0xcd, 0xec, 0x57, 0x9a, 0x21, + 0xc5, 0x7e, 0xb3, 0x08, 0x29, 0x92, 0x5f, 0xe4 }, + { 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, + 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80 }, + { 0x00, 0x00, 0x1d, 0x1d, 0x27, 0x27, 0x3a, 0x3a, + 0x53, 0x53, 0x4e, 0x4e, 0x74, 0x74, 0x69, 0x69 }, + { 0x00, 0xf8, 0xf0, 0x08, 0xe0, 0x18, 0x10, 0xe8, + 0xc0, 0x38, 0x30, 0xc8, 0x20, 0xd8, 0xd0, 0x28 }, + { 0x00, 0xbb, 0x76, 0xcd, 0xec, 0x57, 0x9a, 0x21, + 0xc5, 0x7e, 0xb3, 0x08, 0x29, 0x92, 0x5f, 0xe4 }, + { 0x00, 0x90, 0x20, 0xb0, 0x40, 0xd0, 0x60, 0xf0, + 0x80, 0x10, 0xa0, 0x30, 0xc0, 0x50, 0xe0, 0x70 }, + { 0x00, 0x00, 0x1d, 0x1d, 0x27, 0x27, 0x3a, 0x3a, + 0x53, 0x53, 0x4e, 0x4e, 0x74, 0x74, 0x69, 0x69 }, + { 0x00, 0xf9, 0xf2, 0x0b, 0xe4, 0x1d, 0x16, 0xef, + 0xc8, 0x31, 0x3a, 0xc3, 0x2c, 0xd5, 0xde, 0x27 }, + { 0x00, 0xbb, 0x76, 0xcd, 0xec, 0x57, 0x9a, 0x21, + 0xd8, 0x63, 0xae, 0x15, 0x34, 0x8f, 0x42, 0xf9 }, + { 0x00, 0xa0, 0x40, 0xe0, 0x80, 0x20, 0xc0, 0x60, + 0x00, 0xa0, 0x40, 0xe0, 0x80, 0x20, 0xc0, 0x60 }, + { 0x00, 0x00, 0x1d, 0x1d, 0x27, 0x27, 0x3a, 0x3a, + 0x53, 0x53, 0x4e, 0x4e, 0x74, 0x74, 0x69, 0x69 }, + { 0x00, 0xfa, 0xf4, 0x0e, 0xe8, 0x12, 0x1c, 0xe6, + 0xd0, 0x2a, 0x24, 0xde, 0x38, 0xc2, 0xcc, 0x36 }, + { 0x00, 0xbb, 0x76, 0xcd, 0xec, 0x57, 0x9a, 0x21, + 0xd8, 0x63, 0xae, 0x15, 0x34, 0x8f, 0x42, 0xf9 }, + { 0x00, 0xb0, 0x60, 0xd0, 0xc0, 0x70, 0xa0, 0x10, + 0x80, 0x30, 0xe0, 0x50, 0x40, 0xf0, 0x20, 0x90 }, + { 0x00, 0x00, 0x1d, 0x1d, 0x27, 0x27, 0x3a, 0x3a, + 0x53, 0x53, 0x4e, 0x4e, 0x74, 0x74, 0x69, 0x69 }, + { 0x00, 0xfb, 0xf6, 0x0d, 0xec, 0x17, 0x1a, 0xe1, + 0xd8, 0x23, 0x2e, 0xd5, 0x34, 0xcf, 0xc2, 0x39 }, + { 0x00, 0xbb, 0x76, 0xcd, 0xf1, 0x4a, 0x87, 0x3c, + 0xff, 0x44, 0x89, 0x32, 0x0e, 0xb5, 0x78, 0xc3 }, + { 0x00, 0xc0, 0x80, 0x40, 0x00, 0xc0, 0x80, 0x40, + 0x00, 0xc0, 0x80, 0x40, 0x00, 0xc0, 0x80, 0x40 }, + { 0x00, 0x00, 0x1d, 0x1d, 0x27, 0x27, 0x3a, 0x3a, + 0x53, 0x53, 0x4e, 0x4e, 0x74, 0x74, 0x69, 0x69 }, + { 0x00, 0xfc, 0xf8, 0x04, 0xf0, 0x0c, 0x08, 0xf4, + 0xe0, 0x1c, 0x18, 0xe4, 0x10, 0xec, 0xe8, 0x14 }, + { 0x00, 0xbb, 0x76, 0xcd, 0xf1, 0x4a, 0x87, 0x3c, + 0xff, 0x44, 0x89, 0x32, 0x0e, 0xb5, 0x78, 0xc3 }, + { 0x00, 0xd0, 0xa0, 0x70, 0x40, 0x90, 0xe0, 0x30, + 0x80, 0x50, 0x20, 0xf0, 0xc0, 0x10, 0x60, 0xb0 }, + { 0x00, 0x00, 0x1d, 0x1d, 0x27, 0x27, 0x3a, 0x3a, + 0x53, 0x53, 0x4e, 0x4e, 0x74, 0x74, 0x69, 0x69 }, + { 0x00, 0xfd, 0xfa, 0x07, 0xf4, 0x09, 0x0e, 0xf3, + 0xe8, 0x15, 0x12, 0xef, 0x1c, 0xe1, 0xe6, 0x1b }, + { 0x00, 0xbb, 0x76, 0xcd, 0xf1, 0x4a, 0x87, 0x3c, + 0xe2, 0x59, 0x94, 0x2f, 0x13, 0xa8, 0x65, 0xde }, + { 0x00, 0xe0, 0xc0, 0x20, 0x80, 0x60, 0x40, 0xa0, + 0x00, 0xe0, 0xc0, 0x20, 0x80, 0x60, 0x40, 0xa0 }, + { 0x00, 0x00, 0x1d, 0x1d, 0x27, 0x27, 0x3a, 0x3a, + 0x53, 0x53, 0x4e, 0x4e, 0x74, 0x74, 0x69, 0x69 }, + { 0x00, 0xfe, 0xfc, 0x02, 0xf8, 0x06, 0x04, 0xfa, + 0xf0, 0x0e, 0x0c, 0xf2, 0x08, 0xf6, 0xf4, 0x0a }, + { 0x00, 0xbb, 0x76, 0xcd, 0xf1, 0x4a, 0x87, 0x3c, + 0xe2, 0x59, 0x94, 0x2f, 0x13, 0xa8, 0x65, 0xde }, + { 0x00, 0xf0, 0xe0, 0x10, 0xc0, 0x30, 0x20, 0xd0, + 0x80, 0x70, 0x60, 0x90, 0x40, 0xb0, 0xa0, 0x50 }, + { 0x00, 0x00, 0x1d, 0x1d, 0x27, 0x27, 0x3a, 0x3a, + 0x53, 0x53, 0x4e, 0x4e, 0x74, 0x74, 0x69, 0x69 }, + { 0x00, 0xff, 0xfe, 0x01, 0xfc, 0x03, 0x02, 0xfd, + 0xf8, 0x07, 0x06, 0xf9, 0x04, 0xfb, 0xfa, 0x05 } +}; + +#endif /* defined(__x86_64) && (defined(HAVE_SSSE3) || defined(HAVE_AVX2)) */ diff --git a/tests/runfiles/linux.run b/tests/runfiles/linux.run index ad20d352a..1f52d2815 100644 --- a/tests/runfiles/linux.run +++ b/tests/runfiles/linux.run @@ -262,7 +262,7 @@ tests = ['zpool_clear_001_pos', 'zpool_clear_002_neg', 'zpool_clear_003_neg'] # zpool_create_020_pos - needs investigation [tests/functional/cli_root/zpool_create] tests = [ - 'zpool_create_003_pos', 'zpool_create_005_pos', 'zpool_create_007_neg', + 'zpool_create_003_pos', 'zpool_create_005_pos', 'zpool_create_007_neg', 'zpool_create_009_neg', 'zpool_create_010_neg', 'zpool_create_017_neg', 'zpool_create_018_pos', 'zpool_create_019_pos', 'zpool_create_021_pos', 'zpool_create_022_pos', 'zpool_create_023_neg', @@ -512,12 +512,15 @@ tests = ['poolversion_001_pos', 'poolversion_002_pos'] #tests = ['privilege_001_pos', 'privilege_002_pos'] # DISABLED: -# quota_002_pos - size is less than current used or reserved space +# quota_002_pos - size is less than current used or reserved space # quota_004_pos - size is less than current used or reserved space # quota_005_pos - size is less than current used or reserved space [tests/functional/quota] tests = ['quota_001_pos', 'quota_003_pos', 'quota_006_neg'] +[tests/functional/raidz] +tests = ['raidz_001_neg', 'raidz_002_pos'] + [tests/functional/redundancy] tests = ['redundancy_001_pos', 'redundancy_002_pos', 'redundancy_003_pos'] diff --git a/tests/zfs-tests/include/default.cfg.in b/tests/zfs-tests/include/default.cfg.in index 2fd9a9830..9474c489e 100644 --- a/tests/zfs-tests/include/default.cfg.in +++ b/tests/zfs-tests/include/default.cfg.in @@ -42,6 +42,7 @@ export ZINJECT=${ZINJECT:-${sbindir}/zinject} export ZPOOL=${ZPOOL:-${sbindir}/zpool} export ZTEST=${ZTEST:-${sbindir}/ztest} export ZPIOS=${ZPIOS:-${sbindir}/zpios} +export RAIDZ_TEST=${RAIDZ_TEST:-${bindir}/raidz_test} . $STF_SUITE/include/libtest.shlib diff --git a/tests/zfs-tests/tests/functional/Makefile.am b/tests/zfs-tests/tests/functional/Makefile.am index 9aea472b2..79d33a14b 100644 --- a/tests/zfs-tests/tests/functional/Makefile.am +++ b/tests/zfs-tests/tests/functional/Makefile.am @@ -34,6 +34,7 @@ SUBDIRS = \ poolversion \ privilege \ quota \ + raidz \ redundancy \ refquota \ refreserv \ diff --git a/tests/zfs-tests/tests/functional/raidz/Makefile.am b/tests/zfs-tests/tests/functional/raidz/Makefile.am new file mode 100644 index 000000000..694de18a6 --- /dev/null +++ b/tests/zfs-tests/tests/functional/raidz/Makefile.am @@ -0,0 +1,6 @@ +pkgdatadir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/raidz +dist_pkgdata_SCRIPTS = \ + setup.ksh \ + cleanup.ksh \ + raidz_001_neg.ksh \ + raidz_002_pos.ksh diff --git a/tests/zfs-tests/tests/functional/raidz/cleanup.ksh b/tests/zfs-tests/tests/functional/raidz/cleanup.ksh new file mode 100755 index 000000000..c92c54c27 --- /dev/null +++ b/tests/zfs-tests/tests/functional/raidz/cleanup.ksh @@ -0,0 +1,30 @@ +#!/bin/ksh -p +# +# CDDL HEADER START +# +# The contents of this file are subject to the terms of the +# Common Development and Distribution License (the "License"). +# You may not use this file except in compliance with the License. +# +# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE +# or http://www.opensolaris.org/os/licensing. +# See the License for the specific language governing permissions +# and limitations under the License. +# +# When distributing Covered Code, include this CDDL HEADER in each +# file and include the License file at usr/src/OPENSOLARIS.LICENSE. +# If applicable, add the following below this CDDL HEADER, with the +# fields enclosed by brackets "[]" replaced with your own identifying +# information: Portions Copyright [yyyy] [name of copyright owner] +# +# CDDL HEADER END +# + +# +# Copyright (c) 2016 by Gvozden Neskovic. All rights reserved. +# Use is subject to license terms. +# + +. $STF_SUITE/include/libtest.shlib + +# default_cleanup diff --git a/tests/zfs-tests/tests/functional/raidz/raidz_001_neg.ksh b/tests/zfs-tests/tests/functional/raidz/raidz_001_neg.ksh new file mode 100755 index 000000000..158ce678d --- /dev/null +++ b/tests/zfs-tests/tests/functional/raidz/raidz_001_neg.ksh @@ -0,0 +1,38 @@ +#!/bin/ksh -p +# +# CDDL HEADER START +# +# The contents of this file are subject to the terms of the +# Common Development and Distribution License (the "License"). +# You may not use this file except in compliance with the License. +# +# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE +# or http://www.opensolaris.org/os/licensing. +# See the License for the specific language governing permissions +# and limitations under the License. +# +# When distributing Covered Code, include this CDDL HEADER in each +# file and include the License file at usr/src/OPENSOLARIS.LICENSE. +# If applicable, add the following below this CDDL HEADER, with the +# fields enclosed by brackets "[]" replaced with your own identifying +# information: Portions Copyright [yyyy] [name of copyright owner] +# +# CDDL HEADER END +# + +# +# Copyright (c) 2016 by Gvozden Neskovic. All rights reserved. +# Use is subject to license terms. +# + +. $STF_SUITE/include/libtest.shlib + +# +# DESCRIPTION: +# Call the raidz_test tool with -T options to test the infrastructure. +# This option should make raidz_test to return non 0. +# + +log_mustnot $RAIDZ_TEST -T + +log_pass "raidz_test detects errors as espected." diff --git a/tests/zfs-tests/tests/functional/raidz/raidz_002_pos.ksh b/tests/zfs-tests/tests/functional/raidz/raidz_002_pos.ksh new file mode 100755 index 000000000..b33bd1b90 --- /dev/null +++ b/tests/zfs-tests/tests/functional/raidz/raidz_002_pos.ksh @@ -0,0 +1,41 @@ +#!/bin/ksh -p +# +# CDDL HEADER START +# +# The contents of this file are subject to the terms of the +# Common Development and Distribution License (the "License"). +# You may not use this file except in compliance with the License. +# +# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE +# or http://www.opensolaris.org/os/licensing. +# See the License for the specific language governing permissions +# and limitations under the License. +# +# When distributing Covered Code, include this CDDL HEADER in each +# file and include the License file at usr/src/OPENSOLARIS.LICENSE. +# If applicable, add the following below this CDDL HEADER, with the +# fields enclosed by brackets "[]" replaced with your own identifying +# information: Portions Copyright [yyyy] [name of copyright owner] +# +# CDDL HEADER END +# + +# +# Copyright (c) 2016 by Gvozden Neskovic. All rights reserved. +# Use is subject to license terms. +# + +. $STF_SUITE/include/libtest.shlib + +# +# DESCRIPTION: +# Call the raidz_test tool with -S to test all supported raidz +# implementations. This options will test several raidz block geometries +# and several zio parameters that affect raidz block layout. Data +# reconstruction performs all combinations of failed disks. Wall time +# is set to 5min, but actual runtime might be longer. +# + +log_must $RAIDZ_TEST -S -t 300 + +log_pass "raidz_test parameter sweep test succeeded." diff --git a/tests/zfs-tests/tests/functional/raidz/setup.ksh b/tests/zfs-tests/tests/functional/raidz/setup.ksh new file mode 100755 index 000000000..4e155d24d --- /dev/null +++ b/tests/zfs-tests/tests/functional/raidz/setup.ksh @@ -0,0 +1,32 @@ +#!/bin/ksh -p +# +# CDDL HEADER START +# +# The contents of this file are subject to the terms of the +# Common Development and Distribution License (the "License"). +# You may not use this file except in compliance with the License. +# +# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE +# or http://www.opensolaris.org/os/licensing. +# See the License for the specific language governing permissions +# and limitations under the License. +# +# When distributing Covered Code, include this CDDL HEADER in each +# file and include the License file at usr/src/OPENSOLARIS.LICENSE. +# If applicable, add the following below this CDDL HEADER, with the +# fields enclosed by brackets "[]" replaced with your own identifying +# information: Portions Copyright [yyyy] [name of copyright owner] +# +# CDDL HEADER END +# + +# +# Copyright (c) 2016 by Gvozden Neskovic. All rights reserved. +# Use is subject to license terms. +# + +. $STF_SUITE/include/libtest.shlib + +verify_runnable "global" + +log_pass diff --git a/zfs-script-config.sh.in b/zfs-script-config.sh.in index 5ebaf6977..2470c554a 100644 --- a/zfs-script-config.sh.in +++ b/zfs-script-config.sh.in @@ -28,6 +28,7 @@ export ZINJECT=${CMDDIR}/zinject/zinject export ZPOOL=${CMDDIR}/zpool/zpool export ZTEST=${CMDDIR}/ztest/ztest export ZPIOS=${CMDDIR}/zpios/zpios +export RAIDZ_TEST=${CMDDIR}/raidz_test/raidz_test} export COMMON_SH=${SCRIPTDIR}/common.sh export ZFS_SH=${SCRIPTDIR}/zfs.sh |