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549 lines
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<title>LCOV - lcov.info - raid/module.c</title>
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<td width="35%" class="headerValue"><a href="../index.html">top level</a> - <a href="index.html">raid</a> - module.c<span style="font-size: 80%;"> (source / <a href="module.c.func.html">functions</a>)</span></td>
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<td width="10%" class="headerCovTableHead">Hit</td>
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<td class="headerItem">Test:</td>
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<td class="headerValue">lcov.info</td>
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<td></td>
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<td class="headerItem">Lines:</td>
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<td class="headerCovTableEntry">159</td>
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<td class="headerCovTableEntry">159</td>
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<td class="headerCovTableEntryHi">100.0 %</td>
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<td class="headerItem">Date:</td>
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<td class="headerValue">2016-11-21</td>
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<td></td>
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<td class="headerItem">Functions:</td>
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<td class="headerCovTableEntry">7</td>
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<td class="headerCovTableEntry">7</td>
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<td class="headerCovTableEntryHi">100.0 %</td>
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</tr>
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<pre class="sourceHeading"> Line data Source code</pre>
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<pre class="source">
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<a name="1"><span class="lineNum"> 1 </span> : /*</a>
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<span class="lineNum"> 2 </span> : * Copyright (C) 2013 Andrea Mazzoleni
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<span class="lineNum"> 3 </span> : *
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<span class="lineNum"> 4 </span> : * This program is free software: you can redistribute it and/or modify
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<span class="lineNum"> 5 </span> : * it under the terms of the GNU General Public License as published by
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<span class="lineNum"> 6 </span> : * the Free Software Foundation, either version 2 of the License, or
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<span class="lineNum"> 7 </span> : * (at your option) any later version.
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<span class="lineNum"> 8 </span> : *
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<span class="lineNum"> 9 </span> : * This program is distributed in the hope that it will be useful,
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<span class="lineNum"> 10 </span> : * but WITHOUT ANY WARRANTY; without even the implied warranty of
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<span class="lineNum"> 11 </span> : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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<span class="lineNum"> 12 </span> : * GNU General Public License for more details.
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<span class="lineNum"> 13 </span> : */
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<span class="lineNum"> 14 </span> :
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<span class="lineNum"> 15 </span> : #include "internal.h"
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<span class="lineNum"> 16 </span> : #include "memory.h"
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<span class="lineNum"> 17 </span> : #include "cpu.h"
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<span class="lineNum"> 18 </span> :
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<span class="lineNum"> 19 </span> : /*
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<a name="20"><span class="lineNum"> 20 </span> : * Initializes and selects the best algorithm.</a>
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<span class="lineNum"> 21 </span> : */
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<span class="lineNum"> 22 </span><span class="lineCov"> 271 : void raid_init(void)</span>
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<span class="lineNum"> 23 </span> : {
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<span class="lineNum"> 24 </span><span class="lineCov"> 271 : raid_gen3_ptr = raid_gen3_int8;</span>
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<span class="lineNum"> 25 </span><span class="lineCov"> 271 : raid_gen_ptr[3] = raid_gen4_int8;</span>
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<span class="lineNum"> 26 </span><span class="lineCov"> 271 : raid_gen_ptr[4] = raid_gen5_int8;</span>
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<span class="lineNum"> 27 </span><span class="lineCov"> 271 : raid_gen_ptr[5] = raid_gen6_int8;</span>
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<span class="lineNum"> 28 </span> :
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<span class="lineNum"> 29 </span> : if (sizeof(void *) == 4) {
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<span class="lineNum"> 30 </span><span class="lineCov"> 271 : raid_gen_ptr[0] = raid_gen1_int32;</span>
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<span class="lineNum"> 31 </span><span class="lineCov"> 271 : raid_gen_ptr[1] = raid_gen2_int32;</span>
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<span class="lineNum"> 32 </span><span class="lineCov"> 271 : raid_genz_ptr = raid_genz_int32;</span>
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<span class="lineNum"> 33 </span> : } else {
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<span class="lineNum"> 34 </span> : raid_gen_ptr[0] = raid_gen1_int64;
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<span class="lineNum"> 35 </span> : raid_gen_ptr[1] = raid_gen2_int64;
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<span class="lineNum"> 36 </span> : raid_genz_ptr = raid_genz_int64;
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<span class="lineNum"> 37 </span> : }
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<span class="lineNum"> 38 </span> :
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<span class="lineNum"> 39 </span><span class="lineCov"> 271 : raid_rec_ptr[0] = raid_rec1_int8;</span>
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<span class="lineNum"> 40 </span><span class="lineCov"> 271 : raid_rec_ptr[1] = raid_rec2_int8;</span>
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<span class="lineNum"> 41 </span><span class="lineCov"> 271 : raid_rec_ptr[2] = raid_recX_int8;</span>
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<span class="lineNum"> 42 </span><span class="lineCov"> 271 : raid_rec_ptr[3] = raid_recX_int8;</span>
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<span class="lineNum"> 43 </span><span class="lineCov"> 271 : raid_rec_ptr[4] = raid_recX_int8;</span>
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<span class="lineNum"> 44 </span><span class="lineCov"> 271 : raid_rec_ptr[5] = raid_recX_int8;</span>
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<span class="lineNum"> 45 </span> :
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<span class="lineNum"> 46 </span> : #ifdef CONFIG_X86
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<span class="lineNum"> 47 </span> : #ifdef CONFIG_SSE2
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<span class="lineNum"> 48 </span><span class="lineCov"> 271 : if (raid_cpu_has_sse2()) {</span>
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<span class="lineNum"> 49 </span><span class="lineCov"> 271 : raid_gen_ptr[0] = raid_gen1_sse2;</span>
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<span class="lineNum"> 50 </span> : #ifdef CONFIG_X86_64
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<span class="lineNum"> 51 </span> : if (raid_cpu_has_slowextendedreg()) {
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<span class="lineNum"> 52 </span> : raid_gen_ptr[1] = raid_gen2_sse2;
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<span class="lineNum"> 53 </span> : } else {
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<span class="lineNum"> 54 </span> : raid_gen_ptr[1] = raid_gen2_sse2ext;
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<span class="lineNum"> 55 </span> : }
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<span class="lineNum"> 56 </span> : /* note that raid_cpu_has_slowextendedreg() doesn't affect parz */
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<span class="lineNum"> 57 </span> : raid_genz_ptr = raid_genz_sse2ext;
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<span class="lineNum"> 58 </span> : #else
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<span class="lineNum"> 59 </span><span class="lineCov"> 271 : raid_gen_ptr[1] = raid_gen2_sse2;</span>
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<span class="lineNum"> 60 </span><span class="lineCov"> 271 : raid_genz_ptr = raid_genz_sse2;</span>
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<span class="lineNum"> 61 </span> : #endif
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<span class="lineNum"> 62 </span> : }
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<span class="lineNum"> 63 </span> : #endif
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<span class="lineNum"> 64 </span> :
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<span class="lineNum"> 65 </span> : #ifdef CONFIG_SSSE3
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<span class="lineNum"> 66 </span><span class="lineCov"> 271 : if (raid_cpu_has_ssse3()) {</span>
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<span class="lineNum"> 67 </span> : #ifdef CONFIG_X86_64
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<span class="lineNum"> 68 </span> : if (raid_cpu_has_slowextendedreg()) {
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<span class="lineNum"> 69 </span> : raid_gen3_ptr = raid_gen3_ssse3;
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<span class="lineNum"> 70 </span> : raid_gen_ptr[3] = raid_gen4_ssse3;
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<span class="lineNum"> 71 </span> : raid_gen_ptr[4] = raid_gen5_ssse3;
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<span class="lineNum"> 72 </span> : raid_gen_ptr[5] = raid_gen6_ssse3;
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<span class="lineNum"> 73 </span> : } else {
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<span class="lineNum"> 74 </span> : raid_gen3_ptr = raid_gen3_ssse3ext;
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<span class="lineNum"> 75 </span> : raid_gen_ptr[3] = raid_gen4_ssse3ext;
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<span class="lineNum"> 76 </span> : raid_gen_ptr[4] = raid_gen5_ssse3ext;
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<span class="lineNum"> 77 </span> : raid_gen_ptr[5] = raid_gen6_ssse3ext;
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<span class="lineNum"> 78 </span> : }
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<span class="lineNum"> 79 </span> : #else
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<span class="lineNum"> 80 </span><span class="lineCov"> 270 : raid_gen3_ptr = raid_gen3_ssse3;</span>
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<span class="lineNum"> 81 </span><span class="lineCov"> 270 : raid_gen_ptr[3] = raid_gen4_ssse3;</span>
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<span class="lineNum"> 82 </span><span class="lineCov"> 270 : raid_gen_ptr[4] = raid_gen5_ssse3;</span>
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<span class="lineNum"> 83 </span><span class="lineCov"> 270 : raid_gen_ptr[5] = raid_gen6_ssse3;</span>
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<span class="lineNum"> 84 </span> : #endif
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<span class="lineNum"> 85 </span><span class="lineCov"> 270 : raid_rec_ptr[0] = raid_rec1_ssse3;</span>
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<span class="lineNum"> 86 </span><span class="lineCov"> 270 : raid_rec_ptr[1] = raid_rec2_ssse3;</span>
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<span class="lineNum"> 87 </span><span class="lineCov"> 270 : raid_rec_ptr[2] = raid_recX_ssse3;</span>
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<span class="lineNum"> 88 </span><span class="lineCov"> 270 : raid_rec_ptr[3] = raid_recX_ssse3;</span>
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<span class="lineNum"> 89 </span><span class="lineCov"> 270 : raid_rec_ptr[4] = raid_recX_ssse3;</span>
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<span class="lineNum"> 90 </span><span class="lineCov"> 270 : raid_rec_ptr[5] = raid_recX_ssse3;</span>
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<span class="lineNum"> 91 </span> : }
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<span class="lineNum"> 92 </span> : #endif
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<span class="lineNum"> 93 </span> :
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<span class="lineNum"> 94 </span> : #ifdef CONFIG_AVX2
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<span class="lineNum"> 95 </span><span class="lineCov"> 271 : if (raid_cpu_has_avx2()) {</span>
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<span class="lineNum"> 96 </span><span class="lineCov"> 2 : raid_gen_ptr[0] = raid_gen1_avx2;</span>
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<span class="lineNum"> 97 </span><span class="lineCov"> 2 : raid_gen_ptr[1] = raid_gen2_avx2;</span>
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<span class="lineNum"> 98 </span> : #ifdef CONFIG_X86_64
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<span class="lineNum"> 99 </span> : raid_gen3_ptr = raid_gen3_avx2ext;
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<span class="lineNum"> 100 </span> : raid_genz_ptr = raid_genz_avx2ext;
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<span class="lineNum"> 101 </span> : raid_gen_ptr[3] = raid_gen4_avx2ext;
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<span class="lineNum"> 102 </span> : raid_gen_ptr[4] = raid_gen5_avx2ext;
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<span class="lineNum"> 103 </span> : raid_gen_ptr[5] = raid_gen6_avx2ext;
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<span class="lineNum"> 104 </span> : #endif
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<span class="lineNum"> 105 </span><span class="lineCov"> 2 : raid_rec_ptr[0] = raid_rec1_avx2;</span>
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<span class="lineNum"> 106 </span><span class="lineCov"> 2 : raid_rec_ptr[1] = raid_rec2_avx2;</span>
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<span class="lineNum"> 107 </span><span class="lineCov"> 2 : raid_rec_ptr[2] = raid_recX_avx2;</span>
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<span class="lineNum"> 108 </span><span class="lineCov"> 2 : raid_rec_ptr[3] = raid_recX_avx2;</span>
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<span class="lineNum"> 109 </span><span class="lineCov"> 2 : raid_rec_ptr[4] = raid_recX_avx2;</span>
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<span class="lineNum"> 110 </span><span class="lineCov"> 2 : raid_rec_ptr[5] = raid_recX_avx2;</span>
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<span class="lineNum"> 111 </span> : }
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<span class="lineNum"> 112 </span> : #endif
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<span class="lineNum"> 113 </span> : #endif /* CONFIG_X86 */
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<span class="lineNum"> 114 </span> :
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<span class="lineNum"> 115 </span> : /* set the default mode */
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<span class="lineNum"> 116 </span><span class="lineCov"> 271 : raid_mode(RAID_MODE_CAUCHY);</span>
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<span class="lineNum"> 117 </span><span class="lineCov"> 271 : }</span>
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<span class="lineNum"> 118 </span> :
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<span class="lineNum"> 119 </span> : /*
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<a name="120"><span class="lineNum"> 120 </span> : * Reference parity computation.</a>
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<span class="lineNum"> 121 </span> : */
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<span class="lineNum"> 122 </span><span class="lineCov"> 6 : void raid_gen_ref(int nd, int np, size_t size, void **vv)</span>
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<span class="lineNum"> 123 </span> : {
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<span class="lineNum"> 124 </span><span class="lineCov"> 6 : uint8_t **v = (uint8_t **)vv;</span>
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<span class="lineNum"> 125 </span> : size_t i;
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<span class="lineNum"> 126 </span> :
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<span class="lineNum"> 127 </span><span class="lineCov"> 5382 : for (i = 0; i < size; ++i) {</span>
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<span class="lineNum"> 128 </span> : uint8_t p[RAID_PARITY_MAX];
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<span class="lineNum"> 129 </span> : int j, d;
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<span class="lineNum"> 130 </span> :
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<span class="lineNum"> 131 </span><span class="lineCov"> 36096 : for (j = 0; j < np; ++j)</span>
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<span class="lineNum"> 132 </span><span class="lineCov"> 30720 : p[j] = 0;</span>
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<span class="lineNum"> 133 </span> :
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<span class="lineNum"> 134 </span><span class="lineCov"> 93696 : for (d = 0; d < nd; ++d) {</span>
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<span class="lineNum"> 135 </span><span class="lineCov"> 88320 : uint8_t b = v[d][i];</span>
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<span class="lineNum"> 136 </span> :
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<span class="lineNum"> 137 </span><span class="lineCov"> 584448 : for (j = 0; j < np; ++j)</span>
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<span class="lineNum"> 138 </span><span class="lineCov"> 496128 : p[j] ^= gfmul[b][gfgen[j][d]];</span>
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<span class="lineNum"> 139 </span> : }
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<span class="lineNum"> 140 </span> :
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<span class="lineNum"> 141 </span><span class="lineCov"> 36096 : for (j = 0; j < np; ++j)</span>
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<span class="lineNum"> 142 </span><span class="lineCov"> 30720 : v[nd + j][i] = p[j];</span>
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<span class="lineNum"> 143 </span> : }
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<span class="lineNum"> 144 </span><span class="lineCov"> 6 : }</span>
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<span class="lineNum"> 145 </span> :
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<span class="lineNum"> 146 </span> : /*
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<span class="lineNum"> 147 </span> : * Size of the blocks to test.
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<span class="lineNum"> 148 </span> : */
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<span class="lineNum"> 149 </span> : #define TEST_SIZE 4096
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<span class="lineNum"> 150 </span> :
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<span class="lineNum"> 151 </span> : /*
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<span class="lineNum"> 152 </span> : * Number of data blocks to test.
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<span class="lineNum"> 153 </span> : */
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<span class="lineNum"> 154 </span> : #define TEST_COUNT (65536 / TEST_SIZE)
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<span class="lineNum"> 155 </span> :
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<span class="lineNum"> 156 </span> : /*
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<a name="157"><span class="lineNum"> 157 </span> : * Parity generation test.</a>
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<span class="lineNum"> 158 </span> : */
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<span class="lineNum"> 159 </span><span class="lineCov"> 6 : static int raid_test_par(int nd, int np, size_t size, void **v, void **ref)</span>
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<span class="lineNum"> 160 </span> : {
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<span class="lineNum"> 161 </span> : int i;
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<span class="lineNum"> 162 </span> : void *t[TEST_COUNT + RAID_PARITY_MAX];
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<span class="lineNum"> 163 </span> :
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<span class="lineNum"> 164 </span> : /* setup data */
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<span class="lineNum"> 165 </span><span class="lineCov"> 102 : for (i = 0; i < nd; ++i)</span>
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<span class="lineNum"> 166 </span><span class="lineCov"> 96 : t[i] = ref[i];</span>
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<span class="lineNum"> 167 </span> :
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<span class="lineNum"> 168 </span> : /* setup parity */
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<span class="lineNum"> 169 </span><span class="lineCov"> 27 : for (i = 0; i < np; ++i)</span>
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<span class="lineNum"> 170 </span><span class="lineCov"> 21 : t[nd + i] = v[nd + i];</span>
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<span class="lineNum"> 171 </span> :
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<span class="lineNum"> 172 </span><span class="lineCov"> 6 : raid_gen(nd, np, size, t);</span>
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<span class="lineNum"> 173 </span> :
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<span class="lineNum"> 174 </span> : /* compare parity */
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<span class="lineNum"> 175 </span><span class="lineCov"> 27 : for (i = 0; i < np; ++i) {</span>
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<span class="lineNum"> 176 </span><span class="lineCov"> 21 : if (memcmp(t[nd + i], ref[nd + i], size) != 0) {</span>
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<span class="lineNum"> 177 </span> : /* LCOV_EXCL_START */
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<span class="lineNum"> 178 </span> : return -1;
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<span class="lineNum"> 179 </span> : /* LCOV_EXCL_STOP */
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<span class="lineNum"> 180 </span> : }
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<span class="lineNum"> 181 </span> : }
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<span class="lineNum"> 182 </span> :
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<span class="lineNum"> 183 </span><span class="lineCov"> 6 : return 0;</span>
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<span class="lineNum"> 184 </span> : }
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<span class="lineNum"> 185 </span> :
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<span class="lineNum"> 186 </span> : /*
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<a name="187"><span class="lineNum"> 187 </span> : * Recovering test.</a>
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<span class="lineNum"> 188 </span> : */
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<span class="lineNum"> 189 </span><span class="lineCov"> 18 : static int raid_test_rec(int nr, int *ir, int nd, int np, size_t size, void **v, void **ref)</span>
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<span class="lineNum"> 190 </span> : {
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<span class="lineNum"> 191 </span> : int i, j;
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<span class="lineNum"> 192 </span> : void *t[TEST_COUNT + RAID_PARITY_MAX];
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<span class="lineNum"> 193 </span> :
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<span class="lineNum"> 194 </span> : /* setup data and parity vector */
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<span class="lineNum"> 195 </span><span class="lineCov"> 369 : for (i = 0, j = 0; i < nd + np; ++i) {</span>
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<span class="lineNum"> 196 </span><span class="lineCov"> 351 : if (j < nr && ir[j] == i) {</span>
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<span class="lineNum"> 197 </span> : /* this block has to be recovered */
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<span class="lineNum"> 198 </span><span class="lineCov"> 63 : t[i] = v[i];</span>
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<span class="lineNum"> 199 </span><span class="lineCov"> 63 : ++j;</span>
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<span class="lineNum"> 200 </span> : } else {
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<span class="lineNum"> 201 </span> : /* this block is used for recovering */
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<span class="lineNum"> 202 </span><span class="lineCov"> 288 : t[i] = ref[i];</span>
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<span class="lineNum"> 203 </span> : }
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<span class="lineNum"> 204 </span> : }
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<span class="lineNum"> 205 </span> :
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<span class="lineNum"> 206 </span><span class="lineCov"> 18 : raid_rec(nr, ir, nd, np, size, t);</span>
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<span class="lineNum"> 207 </span> :
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<span class="lineNum"> 208 </span> : /* compare all data and parity */
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<span class="lineNum"> 209 </span><span class="lineCov"> 369 : for (i = 0; i < nd + np; ++i) {</span>
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<span class="lineNum"> 210 </span><span class="lineCov"> 351 : if (t[i] != ref[i]</span>
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<span class="lineNum"> 211 </span><span class="lineCov"> 63 : && memcmp(t[i], ref[i], size) != 0) {</span>
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<span class="lineNum"> 212 </span> : /* LCOV_EXCL_START */
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<span class="lineNum"> 213 </span> : return -1;
|
|
<span class="lineNum"> 214 </span> : /* LCOV_EXCL_STOP */
|
|
<span class="lineNum"> 215 </span> : }
|
|
<span class="lineNum"> 216 </span> : }
|
|
<span class="lineNum"> 217 </span> :
|
|
<span class="lineNum"> 218 </span><span class="lineCov"> 18 : return 0;</span>
|
|
<span class="lineNum"> 219 </span> : }
|
|
<span class="lineNum"> 220 </span> :
|
|
<span class="lineNum"> 221 </span> : /*
|
|
<a name="222"><span class="lineNum"> 222 </span> : * Recovering test for data.</a>
|
|
<span class="lineNum"> 223 </span> : */
|
|
<span class="lineNum"> 224 </span><span class="lineCov"> 18 : static int raid_test_data(int nr, int *id, int *ip, int nd, int np, size_t size, void **v, void **ref)</span>
|
|
<span class="lineNum"> 225 </span> : {
|
|
<span class="lineNum"> 226 </span> : int i, j;
|
|
<span class="lineNum"> 227 </span> : void *t[TEST_COUNT + RAID_PARITY_MAX];
|
|
<span class="lineNum"> 228 </span> :
|
|
<span class="lineNum"> 229 </span> : /* setup data vector */
|
|
<span class="lineNum"> 230 </span><span class="lineCov"> 306 : for (i = 0, j = 0; i < nd; ++i) {</span>
|
|
<span class="lineNum"> 231 </span><span class="lineCov"> 288 : if (j < nr && id[j] == i) {</span>
|
|
<span class="lineNum"> 232 </span> : /* this block has to be recovered */
|
|
<span class="lineNum"> 233 </span><span class="lineCov"> 39 : t[i] = v[i];</span>
|
|
<span class="lineNum"> 234 </span><span class="lineCov"> 39 : ++j;</span>
|
|
<span class="lineNum"> 235 </span> : } else {
|
|
<span class="lineNum"> 236 </span> : /* this block is left unchanged */
|
|
<span class="lineNum"> 237 </span><span class="lineCov"> 249 : t[i] = ref[i];</span>
|
|
<span class="lineNum"> 238 </span> : }
|
|
<span class="lineNum"> 239 </span> : }
|
|
<span class="lineNum"> 240 </span> :
|
|
<span class="lineNum"> 241 </span> : /* setup parity vector */
|
|
<span class="lineNum"> 242 </span><span class="lineCov"> 81 : for (i = 0, j = 0; i < np; ++i) {</span>
|
|
<span class="lineNum"> 243 </span><span class="lineCov"> 63 : if (j < nr && ip[j] == i) {</span>
|
|
<span class="lineNum"> 244 </span> : /* this block is used for recovering */
|
|
<span class="lineNum"> 245 </span><span class="lineCov"> 39 : t[nd + i] = ref[nd + i];</span>
|
|
<span class="lineNum"> 246 </span><span class="lineCov"> 39 : ++j;</span>
|
|
<span class="lineNum"> 247 </span> : } else {
|
|
<span class="lineNum"> 248 </span> : /* this block should not be read or written */
|
|
<span class="lineNum"> 249 </span><span class="lineCov"> 24 : t[nd + i] = 0;</span>
|
|
<span class="lineNum"> 250 </span> : }
|
|
<span class="lineNum"> 251 </span> : }
|
|
<span class="lineNum"> 252 </span> :
|
|
<span class="lineNum"> 253 </span><span class="lineCov"> 18 : raid_data(nr, id, ip, nd, size, t);</span>
|
|
<span class="lineNum"> 254 </span> :
|
|
<span class="lineNum"> 255 </span> : /* compare all data and parity */
|
|
<span class="lineNum"> 256 </span><span class="lineCov"> 306 : for (i = 0; i < nd; ++i) {</span>
|
|
<span class="lineNum"> 257 </span><span class="lineCov"> 288 : if (t[i] != ref[i]</span>
|
|
<span class="lineNum"> 258 </span><span class="lineCov"> 39 : && t[i] != 0</span>
|
|
<span class="lineNum"> 259 </span><span class="lineCov"> 39 : && memcmp(t[i], ref[i], size) != 0) {</span>
|
|
<span class="lineNum"> 260 </span> : /* LCOV_EXCL_START */
|
|
<span class="lineNum"> 261 </span> : return -1;
|
|
<span class="lineNum"> 262 </span> : /* LCOV_EXCL_STOP */
|
|
<span class="lineNum"> 263 </span> : }
|
|
<span class="lineNum"> 264 </span> : }
|
|
<span class="lineNum"> 265 </span> :
|
|
<span class="lineNum"> 266 </span><span class="lineCov"> 18 : return 0;</span>
|
|
<span class="lineNum"> 267 </span> : }
|
|
<span class="lineNum"> 268 </span> :
|
|
<span class="lineNum"> 269 </span> : /*
|
|
<a name="270"><span class="lineNum"> 270 </span> : * Scan test.</a>
|
|
<span class="lineNum"> 271 </span> : */
|
|
<span class="lineNum"> 272 </span><span class="lineCov"> 7 : static int raid_test_scan(int nr, int *ir, int nd, int np, size_t size, void **v, void **ref)</span>
|
|
<span class="lineNum"> 273 </span> : {
|
|
<span class="lineNum"> 274 </span> : int i, j, ret;
|
|
<span class="lineNum"> 275 </span> : void *t[TEST_COUNT + RAID_PARITY_MAX];
|
|
<span class="lineNum"> 276 </span> : int is[RAID_PARITY_MAX];
|
|
<span class="lineNum"> 277 </span> :
|
|
<span class="lineNum"> 278 </span> : /* setup data and parity vector */
|
|
<span class="lineNum"> 279 </span><span class="lineCov"> 140 : for (i = 0, j = 0; i < nd + np; ++i) {</span>
|
|
<span class="lineNum"> 280 </span><span class="lineCov"> 133 : if (j < nr && ir[j] == i) {</span>
|
|
<span class="lineNum"> 281 </span> : /* this block is bad */
|
|
<span class="lineNum"> 282 </span><span class="lineCov"> 15 : t[i] = v[i];</span>
|
|
<span class="lineNum"> 283 </span><span class="lineCov"> 15 : ++j;</span>
|
|
<span class="lineNum"> 284 </span> : } else {
|
|
<span class="lineNum"> 285 </span> : /* this block is used for recovering */
|
|
<span class="lineNum"> 286 </span><span class="lineCov"> 118 : t[i] = ref[i];</span>
|
|
<span class="lineNum"> 287 </span> : }
|
|
<span class="lineNum"> 288 </span> : }
|
|
<span class="lineNum"> 289 </span> :
|
|
<span class="lineNum"> 290 </span><span class="lineCov"> 7 : ret = raid_scan(is, nd, np, size, t);</span>
|
|
<span class="lineNum"> 291 </span> :
|
|
<span class="lineNum"> 292 </span> : /* compare identified bad blocks */
|
|
<span class="lineNum"> 293 </span><span class="lineCov"> 7 : if (ret != nr)</span>
|
|
<span class="lineNum"> 294 </span><span class="lineCov"> 1 : return -1;</span>
|
|
<span class="lineNum"> 295 </span><span class="lineCov"> 21 : for (i = 0; i < nr; ++i) {</span>
|
|
<span class="lineNum"> 296 </span><span class="lineCov"> 15 : if (ir[i] != is[i]) {</span>
|
|
<span class="lineNum"> 297 </span> : /* LCOV_EXCL_START */
|
|
<span class="lineNum"> 298 </span> : return -1;
|
|
<span class="lineNum"> 299 </span> : /* LCOV_EXCL_STOP */
|
|
<span class="lineNum"> 300 </span> : }
|
|
<span class="lineNum"> 301 </span> : }
|
|
<span class="lineNum"> 302 </span> :
|
|
<span class="lineNum"> 303 </span><span class="lineCov"> 6 : return 0;</span>
|
|
<span class="lineNum"> 304 </span> : }
|
|
<span class="lineNum"> 305 </span> :
|
|
<span class="lineNum"> 306 </span> : /*
|
|
<a name="307"><span class="lineNum"> 307 </span> : * Basic functionality self test.</a>
|
|
<span class="lineNum"> 308 </span> : */
|
|
<span class="lineNum"> 309 </span><span class="lineCov"> 1 : int raid_selftest(void)</span>
|
|
<span class="lineNum"> 310 </span> : {
|
|
<span class="lineNum"> 311 </span><span class="lineCov"> 1 : const int nd = TEST_COUNT;</span>
|
|
<span class="lineNum"> 312 </span><span class="lineCov"> 1 : const size_t size = TEST_SIZE;</span>
|
|
<span class="lineNum"> 313 </span><span class="lineCov"> 1 : const int nv = nd + RAID_PARITY_MAX * 2 + 1;</span>
|
|
<span class="lineNum"> 314 </span> : void *v_alloc;
|
|
<span class="lineNum"> 315 </span> : void **v;
|
|
<span class="lineNum"> 316 </span><span class="lineCov"> 1 : void *ref[nd + RAID_PARITY_MAX];</span>
|
|
<span class="lineNum"> 317 </span> : int ir[RAID_PARITY_MAX];
|
|
<span class="lineNum"> 318 </span> : int ip[RAID_PARITY_MAX];
|
|
<span class="lineNum"> 319 </span> : int i, np;
|
|
<span class="lineNum"> 320 </span><span class="lineCov"> 1 : int ret = 0;</span>
|
|
<span class="lineNum"> 321 </span> :
|
|
<span class="lineNum"> 322 </span> : /* ensure to have enough space for data */
|
|
<span class="lineNum"> 323 </span><span class="lineCov"> 1 : BUG_ON(nd * size > 65536);</span>
|
|
<span class="lineNum"> 324 </span> :
|
|
<span class="lineNum"> 325 </span><span class="lineCov"> 1 : v = raid_malloc_vector(nd, nv, size, &v_alloc);</span>
|
|
<span class="lineNum"> 326 </span><span class="lineCov"> 1 : if (!v) {</span>
|
|
<span class="lineNum"> 327 </span> : /* LCOV_EXCL_START */
|
|
<span class="lineNum"> 328 </span> : return -1;
|
|
<span class="lineNum"> 329 </span> : /* LCOV_EXCL_STOP */
|
|
<span class="lineNum"> 330 </span> : }
|
|
<span class="lineNum"> 331 </span> :
|
|
<span class="lineNum"> 332 </span><span class="lineCov"> 1 : memset(v[nv - 1], 0, size);</span>
|
|
<span class="lineNum"> 333 </span><span class="lineCov"> 1 : raid_zero(v[nv - 1]);</span>
|
|
<span class="lineNum"> 334 </span> :
|
|
<span class="lineNum"> 335 </span> : /* use the multiplication table as data */
|
|
<span class="lineNum"> 336 </span><span class="lineCov"> 17 : for (i = 0; i < nd; ++i)</span>
|
|
<span class="lineNum"> 337 </span><span class="lineCov"> 16 : ref[i] = ((uint8_t *)gfmul) + size * i;</span>
|
|
<span class="lineNum"> 338 </span> :
|
|
<span class="lineNum"> 339 </span> : /* setup reference parity */
|
|
<span class="lineNum"> 340 </span><span class="lineCov"> 7 : for (i = 0; i < RAID_PARITY_MAX; ++i)</span>
|
|
<span class="lineNum"> 341 </span><span class="lineCov"> 6 : ref[nd + i] = v[nd + RAID_PARITY_MAX + i];</span>
|
|
<span class="lineNum"> 342 </span> :
|
|
<span class="lineNum"> 343 </span> : /* compute reference parity */
|
|
<span class="lineNum"> 344 </span><span class="lineCov"> 1 : raid_gen_ref(nd, RAID_PARITY_MAX, size, ref);</span>
|
|
<span class="lineNum"> 345 </span> :
|
|
<span class="lineNum"> 346 </span> : /* test for each parity level */
|
|
<span class="lineNum"> 347 </span><span class="lineCov"> 7 : for (np = 1; np <= RAID_PARITY_MAX; ++np) {</span>
|
|
<span class="lineNum"> 348 </span> : /* test parity generation */
|
|
<span class="lineNum"> 349 </span><span class="lineCov"> 6 : ret = raid_test_par(nd, np, size, v, ref);</span>
|
|
<span class="lineNum"> 350 </span><span class="lineCov"> 6 : if (ret != 0) {</span>
|
|
<span class="lineNum"> 351 </span> : /* LCOV_EXCL_START */
|
|
<span class="lineNum"> 352 </span> : goto bail;
|
|
<span class="lineNum"> 353 </span> : /* LCOV_EXCL_STOP */
|
|
<span class="lineNum"> 354 </span> : }
|
|
<span class="lineNum"> 355 </span> :
|
|
<span class="lineNum"> 356 </span> : /* test recovering with broken ending data disks */
|
|
<span class="lineNum"> 357 </span><span class="lineCov"> 27 : for (i = 0; i < np; ++i) {</span>
|
|
<span class="lineNum"> 358 </span> : /* bad data */
|
|
<span class="lineNum"> 359 </span><span class="lineCov"> 21 : ir[i] = nd - np + i;</span>
|
|
<span class="lineNum"> 360 </span> :
|
|
<span class="lineNum"> 361 </span> : /* good parity */
|
|
<span class="lineNum"> 362 </span><span class="lineCov"> 21 : ip[i] = i;</span>
|
|
<span class="lineNum"> 363 </span> : }
|
|
<span class="lineNum"> 364 </span> :
|
|
<span class="lineNum"> 365 </span><span class="lineCov"> 6 : ret = raid_test_rec(np, ir, nd, np, size, v, ref);</span>
|
|
<span class="lineNum"> 366 </span><span class="lineCov"> 6 : if (ret != 0) {</span>
|
|
<span class="lineNum"> 367 </span> : /* LCOV_EXCL_START */
|
|
<span class="lineNum"> 368 </span> : goto bail;
|
|
<span class="lineNum"> 369 </span> : /* LCOV_EXCL_STOP */
|
|
<span class="lineNum"> 370 </span> : }
|
|
<span class="lineNum"> 371 </span> :
|
|
<span class="lineNum"> 372 </span><span class="lineCov"> 6 : ret = raid_test_data(np, ir, ip, nd, np, size, v, ref);</span>
|
|
<span class="lineNum"> 373 </span><span class="lineCov"> 6 : if (ret != 0) {</span>
|
|
<span class="lineNum"> 374 </span> : /* LCOV_EXCL_START */
|
|
<span class="lineNum"> 375 </span> : goto bail;
|
|
<span class="lineNum"> 376 </span> : /* LCOV_EXCL_STOP */
|
|
<span class="lineNum"> 377 </span> : }
|
|
<span class="lineNum"> 378 </span> :
|
|
<span class="lineNum"> 379 </span> : /* test recovering with broken leading data and broken leading parity */
|
|
<span class="lineNum"> 380 </span><span class="lineCov"> 15 : for (i = 0; i < np / 2; ++i) {</span>
|
|
<span class="lineNum"> 381 </span> : /* bad data */
|
|
<span class="lineNum"> 382 </span><span class="lineCov"> 9 : ir[i] = i;</span>
|
|
<span class="lineNum"> 383 </span> :
|
|
<span class="lineNum"> 384 </span> : /* good parity */
|
|
<span class="lineNum"> 385 </span><span class="lineCov"> 9 : ip[i] = (np + 1) / 2 + i;</span>
|
|
<span class="lineNum"> 386 </span> : }
|
|
<span class="lineNum"> 387 </span> :
|
|
<span class="lineNum"> 388 </span> : /* bad parity */
|
|
<span class="lineNum"> 389 </span><span class="lineCov"> 18 : for (i = 0; i < (np + 1) / 2; ++i)</span>
|
|
<span class="lineNum"> 390 </span><span class="lineCov"> 12 : ir[np / 2 + i] = nd + i;</span>
|
|
<span class="lineNum"> 391 </span> :
|
|
<span class="lineNum"> 392 </span><span class="lineCov"> 6 : ret = raid_test_rec(np, ir, nd, np, size, v, ref);</span>
|
|
<span class="lineNum"> 393 </span><span class="lineCov"> 6 : if (ret != 0) {</span>
|
|
<span class="lineNum"> 394 </span> : /* LCOV_EXCL_START */
|
|
<span class="lineNum"> 395 </span> : goto bail;
|
|
<span class="lineNum"> 396 </span> : /* LCOV_EXCL_STOP */
|
|
<span class="lineNum"> 397 </span> : }
|
|
<span class="lineNum"> 398 </span> :
|
|
<span class="lineNum"> 399 </span><span class="lineCov"> 6 : ret = raid_test_data(np / 2, ir, ip, nd, np, size, v, ref);</span>
|
|
<span class="lineNum"> 400 </span><span class="lineCov"> 6 : if (ret != 0) {</span>
|
|
<span class="lineNum"> 401 </span> : /* LCOV_EXCL_START */
|
|
<span class="lineNum"> 402 </span> : goto bail;
|
|
<span class="lineNum"> 403 </span> : /* LCOV_EXCL_STOP */
|
|
<span class="lineNum"> 404 </span> : }
|
|
<span class="lineNum"> 405 </span> :
|
|
<span class="lineNum"> 406 </span> : /* test recovering with broken leading data and broken ending parity */
|
|
<span class="lineNum"> 407 </span><span class="lineCov"> 15 : for (i = 0; i < np / 2; ++i) {</span>
|
|
<span class="lineNum"> 408 </span> : /* bad data */
|
|
<span class="lineNum"> 409 </span><span class="lineCov"> 9 : ir[i] = i;</span>
|
|
<span class="lineNum"> 410 </span> :
|
|
<span class="lineNum"> 411 </span> : /* good parity */
|
|
<span class="lineNum"> 412 </span><span class="lineCov"> 9 : ip[i] = i;</span>
|
|
<span class="lineNum"> 413 </span> : }
|
|
<span class="lineNum"> 414 </span> :
|
|
<span class="lineNum"> 415 </span> : /* bad parity */
|
|
<span class="lineNum"> 416 </span><span class="lineCov"> 18 : for (i = 0; i < (np + 1) / 2; ++i)</span>
|
|
<span class="lineNum"> 417 </span><span class="lineCov"> 12 : ir[np / 2 + i] = nd + np - (np + 1) / 2 + i;</span>
|
|
<span class="lineNum"> 418 </span> :
|
|
<span class="lineNum"> 419 </span><span class="lineCov"> 6 : ret = raid_test_rec(np, ir, nd, np, size, v, ref);</span>
|
|
<span class="lineNum"> 420 </span><span class="lineCov"> 6 : if (ret != 0) {</span>
|
|
<span class="lineNum"> 421 </span> : /* LCOV_EXCL_START */
|
|
<span class="lineNum"> 422 </span> : goto bail;
|
|
<span class="lineNum"> 423 </span> : /* LCOV_EXCL_STOP */
|
|
<span class="lineNum"> 424 </span> : }
|
|
<span class="lineNum"> 425 </span> :
|
|
<span class="lineNum"> 426 </span><span class="lineCov"> 6 : ret = raid_test_data(np / 2, ir, ip, nd, np, size, v, ref);</span>
|
|
<span class="lineNum"> 427 </span><span class="lineCov"> 6 : if (ret != 0) {</span>
|
|
<span class="lineNum"> 428 </span> : /* LCOV_EXCL_START */
|
|
<span class="lineNum"> 429 </span> : goto bail;
|
|
<span class="lineNum"> 430 </span> : /* LCOV_EXCL_STOP */
|
|
<span class="lineNum"> 431 </span> : }
|
|
<span class="lineNum"> 432 </span> :
|
|
<span class="lineNum"> 433 </span> : /* scan test with broken data and parity */
|
|
<span class="lineNum"> 434 </span><span class="lineCov"> 15 : for (i = 0; i < np / 2; ++i) {</span>
|
|
<span class="lineNum"> 435 </span> : /* bad data */
|
|
<span class="lineNum"> 436 </span><span class="lineCov"> 9 : ir[i] = i;</span>
|
|
<span class="lineNum"> 437 </span> : }
|
|
<span class="lineNum"> 438 </span><span class="lineCov"> 12 : for (i = 0; i < (np - 1) / 2; ++i) {</span>
|
|
<span class="lineNum"> 439 </span> : /* bad parity */
|
|
<span class="lineNum"> 440 </span><span class="lineCov"> 6 : ir[np / 2 + i] = nd + i;</span>
|
|
<span class="lineNum"> 441 </span> : }
|
|
<span class="lineNum"> 442 </span><span class="lineCov"> 21 : for (i = 0; i < np - 1; ++i) {</span>
|
|
<span class="lineNum"> 443 </span> : /* make blocks bad */
|
|
<span class="lineNum"> 444 </span> : /* we cannot fill them with 0, because the original */
|
|
<span class="lineNum"> 445 </span> : /* data may be already filled with 0 */
|
|
<span class="lineNum"> 446 </span><span class="lineCov"> 15 : memset(v[ir[i]], 0x55, size);</span>
|
|
<span class="lineNum"> 447 </span> : }
|
|
<span class="lineNum"> 448 </span> :
|
|
<span class="lineNum"> 449 </span><span class="lineCov"> 6 : ret = raid_test_scan(np - 1, ir, nd, np, size, v, ref);</span>
|
|
<span class="lineNum"> 450 </span><span class="lineCov"> 6 : if (ret != 0) {</span>
|
|
<span class="lineNum"> 451 </span> : /* LCOV_EXCL_START */
|
|
<span class="lineNum"> 452 </span> : goto bail;
|
|
<span class="lineNum"> 453 </span> : /* LCOV_EXCL_STOP */
|
|
<span class="lineNum"> 454 </span> : }
|
|
<span class="lineNum"> 455 </span> : }
|
|
<span class="lineNum"> 456 </span> :
|
|
<span class="lineNum"> 457 </span> : /* scan test with no parity */
|
|
<span class="lineNum"> 458 </span><span class="lineCov"> 1 : ret = raid_test_scan(0, 0, nd, 0, size, v, ref);</span>
|
|
<span class="lineNum"> 459 </span><span class="lineCov"> 1 : if (ret != -1) {</span>
|
|
<span class="lineNum"> 460 </span> : /* LCOV_EXCL_START */
|
|
<span class="lineNum"> 461 </span> : goto bail;
|
|
<span class="lineNum"> 462 </span> : /* LCOV_EXCL_STOP */
|
|
<span class="lineNum"> 463 </span> : }
|
|
<span class="lineNum"> 464 </span> :
|
|
<span class="lineNum"> 465 </span><span class="lineCov"> 1 : ret = 0;</span>
|
|
<span class="lineNum"> 466 </span> :
|
|
<span class="lineNum"> 467 </span> : bail:
|
|
<span class="lineNum"> 468 </span><span class="lineCov"> 1 : free(v);</span>
|
|
<span class="lineNum"> 469 </span><span class="lineCov"> 1 : free(v_alloc);</span>
|
|
<span class="lineNum"> 470 </span> :
|
|
<span class="lineNum"> 471 </span><span class="lineCov"> 1 : return ret;</span>
|
|
<span class="lineNum"> 472 </span> : }
|
|
<span class="lineNum"> 473 </span> :
|
|
</pre>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
<br>
|
|
|
|
<table width="100%" border=0 cellspacing=0 cellpadding=0>
|
|
<tr><td class="ruler"><img src="../glass.png" width=3 height=3 alt=""></td></tr>
|
|
<tr><td class="versionInfo">Generated by: <a href="http://ltp.sourceforge.net/coverage/lcov.php" target="_parent">LCOV version 1.10</a></td></tr>
|
|
</table>
|
|
<br>
|
|
|
|
</body>
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</html>
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