^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * asynchronous raid6 recovery self test
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) 2009, Intel Corporation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * based on drivers/md/raid6test/test.c:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright 2002-2007 H. Peter Anvin
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/async_tx.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/gfp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/random.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #undef pr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define pr(fmt, args...) pr_info("raid6test: " fmt, ##args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define NDISKS 64 /* Including P and Q */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static struct page *dataptrs[NDISKS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) unsigned int dataoffs[NDISKS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static addr_conv_t addr_conv[NDISKS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static struct page *data[NDISKS+3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) static struct page *spare;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static struct page *recovi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static struct page *recovj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static void callback(void *param)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct completion *cmp = param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) complete(cmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) static void makedata(int disks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) for (i = 0; i < disks; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) prandom_bytes(page_address(data[i]), PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) dataptrs[i] = data[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) dataoffs[i] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) static char disk_type(int d, int disks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) if (d == disks - 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) return 'P';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) else if (d == disks - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) return 'Q';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return 'D';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) /* Recover two failed blocks. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static void raid6_dual_recov(int disks, size_t bytes, int faila, int failb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct page **ptrs, unsigned int *offs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct async_submit_ctl submit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct completion cmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct dma_async_tx_descriptor *tx = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) enum sum_check_flags result = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) if (faila > failb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) swap(faila, failb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) if (failb == disks-1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) if (faila == disks-2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) /* P+Q failure. Just rebuild the syndrome. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) init_async_submit(&submit, 0, NULL, NULL, NULL, addr_conv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) tx = async_gen_syndrome(ptrs, offs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) disks, bytes, &submit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct page *blocks[NDISKS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) struct page *dest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) int count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) BUG_ON(disks > NDISKS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /* data+Q failure. Reconstruct data from P,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * then rebuild syndrome
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) for (i = disks; i-- ; ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) if (i == faila || i == failb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) blocks[count++] = ptrs[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) dest = ptrs[faila];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) init_async_submit(&submit, ASYNC_TX_XOR_ZERO_DST, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) NULL, NULL, addr_conv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) tx = async_xor(dest, blocks, 0, count, bytes, &submit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) init_async_submit(&submit, 0, tx, NULL, NULL, addr_conv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) tx = async_gen_syndrome(ptrs, offs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) disks, bytes, &submit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) if (failb == disks-2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) /* data+P failure. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) init_async_submit(&submit, 0, NULL, NULL, NULL, addr_conv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) tx = async_raid6_datap_recov(disks, bytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) faila, ptrs, offs, &submit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) /* data+data failure. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) init_async_submit(&submit, 0, NULL, NULL, NULL, addr_conv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) tx = async_raid6_2data_recov(disks, bytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) faila, failb, ptrs, offs, &submit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) init_completion(&cmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) init_async_submit(&submit, ASYNC_TX_ACK, tx, callback, &cmp, addr_conv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) tx = async_syndrome_val(ptrs, offs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) disks, bytes, &result, spare, 0, &submit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) async_tx_issue_pending(tx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) if (wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000)) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) pr("%s: timeout! (faila: %d failb: %d disks: %d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) __func__, faila, failb, disks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) if (result != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) pr("%s: validation failure! faila: %d failb: %d sum_check_flags: %x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) __func__, faila, failb, result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) static int test_disks(int i, int j, int disks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) int erra, errb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) memset(page_address(recovi), 0xf0, PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) memset(page_address(recovj), 0xba, PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) dataptrs[i] = recovi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) dataptrs[j] = recovj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) raid6_dual_recov(disks, PAGE_SIZE, i, j, dataptrs, dataoffs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) erra = memcmp(page_address(data[i]), page_address(recovi), PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) errb = memcmp(page_address(data[j]), page_address(recovj), PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) pr("%s(%d, %d): faila=%3d(%c) failb=%3d(%c) %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) __func__, i, j, i, disk_type(i, disks), j, disk_type(j, disks),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) (!erra && !errb) ? "OK" : !erra ? "ERRB" : !errb ? "ERRA" : "ERRAB");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) dataptrs[i] = data[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) dataptrs[j] = data[j];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) return erra || errb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) static int test(int disks, int *tests)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) struct dma_async_tx_descriptor *tx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct async_submit_ctl submit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct completion cmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) recovi = data[disks];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) recovj = data[disks+1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) spare = data[disks+2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) makedata(disks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) /* Nuke syndromes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) memset(page_address(data[disks-2]), 0xee, PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) memset(page_address(data[disks-1]), 0xee, PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) /* Generate assumed good syndrome */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) init_completion(&cmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) init_async_submit(&submit, ASYNC_TX_ACK, NULL, callback, &cmp, addr_conv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) tx = async_gen_syndrome(dataptrs, dataoffs, disks, PAGE_SIZE, &submit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) async_tx_issue_pending(tx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) if (wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000)) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) pr("error: initial gen_syndrome(%d) timed out\n", disks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) pr("testing the %d-disk case...\n", disks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) for (i = 0; i < disks-1; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) for (j = i+1; j < disks; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) (*tests)++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) err += test_disks(i, j, disks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) static int raid6_test(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) int tests = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) for (i = 0; i < NDISKS+3; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) data[i] = alloc_page(GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) if (!data[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) while (i--)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) put_page(data[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) /* the 4-disk and 5-disk cases are special for the recovery code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) if (NDISKS > 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) err += test(4, &tests);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) if (NDISKS > 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) err += test(5, &tests);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) /* the 11 and 12 disk cases are special for ioatdma (p-disabled
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) * q-continuation without extended descriptor)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) if (NDISKS > 12) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) err += test(11, &tests);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) err += test(12, &tests);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) /* the 24 disk case is special for ioatdma as it is the boudary point
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) * at which it needs to switch from 8-source ops to 16-source
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) * ops for continuation (assumes DMA_HAS_PQ_CONTINUE is not set)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) if (NDISKS > 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) err += test(24, &tests);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) err += test(NDISKS, &tests);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) pr("\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) pr("complete (%d tests, %d failure%s)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) tests, err, err == 1 ? "" : "s");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) for (i = 0; i < NDISKS+3; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) put_page(data[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) static void raid6_test_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) /* when compiled-in wait for drivers to load first (assumes dma drivers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) * are also compliled-in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) late_initcall(raid6_test);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) module_exit(raid6_test_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) MODULE_AUTHOR("Dan Williams <dan.j.williams@intel.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) MODULE_DESCRIPTION("asynchronous RAID-6 recovery self tests");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags