1 | /* |
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2 | * Copyright (c) 2012 embedded brains GmbH. All rights reserved. |
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3 | * |
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4 | * embedded brains GmbH |
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5 | * Obere Lagerstr. 30 |
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6 | * 82178 Puchheim |
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7 | * Germany |
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8 | * <rtems@embedded-brains.de> |
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9 | * |
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10 | * The license and distribution terms for this file may be |
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11 | * found in the file LICENSE in this distribution or at |
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12 | * http://www.rtems.com/license/LICENSE. |
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13 | */ |
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14 | |
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15 | #ifdef HAVE_CONFIG_H |
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16 | #include "config.h" |
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17 | #endif |
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18 | |
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19 | #include "tmacros.h" |
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20 | |
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21 | #include <errno.h> |
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22 | #include <string.h> |
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23 | |
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24 | #include <rtems/blkdev.h> |
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25 | #include <rtems/bdbuf.h> |
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26 | |
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27 | #define BLOCK_COUNT 9 |
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28 | #define READ_COUNT 19 |
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29 | |
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30 | static int block_access_counts [BLOCK_COUNT]; |
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31 | |
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32 | #define RESET_CACHE (-1) |
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33 | |
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34 | static const int action_sequence [READ_COUNT] = { |
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35 | 0, 2, 3, 4, 5, 6, 7, 8, |
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36 | RESET_CACHE, |
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37 | 8, |
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38 | RESET_CACHE, |
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39 | 7, |
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40 | RESET_CACHE, |
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41 | 6, 7, |
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42 | RESET_CACHE, |
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43 | 5, 6, 8 |
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44 | }; |
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45 | |
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46 | #define UNUSED_LINE { 0, 0, 0, 0, 0, 0, 0, 0, 0 } |
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47 | |
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48 | static const int expected_block_access_counts [READ_COUNT] [BLOCK_COUNT] = { |
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49 | { 1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
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50 | { 1, 0, 1, 0, 0, 0, 0, 0, 0 }, |
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51 | { 1, 0, 1, 1, 1, 1, 0, 0, 0 }, |
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52 | { 1, 0, 1, 1, 1, 1, 0, 0, 0 }, |
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53 | { 1, 0, 1, 1, 1, 1, 1, 1, 0 }, |
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54 | { 1, 0, 1, 1, 1, 1, 1, 1, 0 }, |
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55 | { 1, 0, 1, 1, 1, 1, 1, 1, 1 }, |
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56 | { 1, 0, 1, 1, 1, 1, 1, 1, 1 }, |
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57 | UNUSED_LINE, |
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58 | { 0, 0, 0, 0, 0, 0, 0, 0, 1 }, |
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59 | UNUSED_LINE, |
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60 | { 0, 0, 0, 0, 0, 0, 0, 1, 0 }, |
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61 | UNUSED_LINE, |
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62 | { 0, 0, 0, 0, 0, 0, 1, 0, 0 }, |
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63 | { 0, 0, 0, 0, 0, 0, 1, 1, 1 }, |
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64 | UNUSED_LINE, |
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65 | { 0, 0, 0, 0, 0, 1, 0, 0, 0 }, |
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66 | { 0, 0, 0, 0, 0, 1, 1, 1, 1 }, |
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67 | { 0, 0, 0, 0, 0, 1, 1, 1, 1 } |
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68 | }; |
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69 | |
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70 | #define NO_TRIGGER RTEMS_DISK_READ_AHEAD_NO_TRIGGER |
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71 | |
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72 | #define TRIGGER_AFTER_RESET RTEMS_DISK_READ_AHEAD_NO_TRIGGER |
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73 | |
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74 | static const rtems_blkdev_bnum trigger [READ_COUNT] = { |
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75 | 1, 3, 5, 5, 7, 7, NO_TRIGGER, NO_TRIGGER, |
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76 | TRIGGER_AFTER_RESET, |
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77 | 9, |
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78 | TRIGGER_AFTER_RESET, |
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79 | 8, |
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80 | TRIGGER_AFTER_RESET, |
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81 | 7, NO_TRIGGER, |
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82 | TRIGGER_AFTER_RESET, |
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83 | 6, 8, NO_TRIGGER |
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84 | }; |
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85 | |
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86 | #define NOT_CHANGED_BY_RESET(i) (i) |
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87 | |
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88 | static const rtems_blkdev_bnum next [READ_COUNT] = { |
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89 | 2, 4, 6, 6, 8, 8, 8, 8, |
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90 | NOT_CHANGED_BY_RESET(8), |
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91 | 10, |
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92 | NOT_CHANGED_BY_RESET(10), |
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93 | 9, |
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94 | NOT_CHANGED_BY_RESET(9), |
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95 | 8, 8, |
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96 | NOT_CHANGED_BY_RESET(8), |
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97 | 7, 9, 9 |
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98 | }; |
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99 | |
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100 | static int test_disk_ioctl(rtems_disk_device *dd, uint32_t req, void *arg) |
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101 | { |
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102 | int rv = 0; |
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103 | |
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104 | if (req == RTEMS_BLKIO_REQUEST) { |
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105 | rtems_blkdev_request *breq = arg; |
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106 | rtems_blkdev_sg_buffer *sg = breq->bufs; |
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107 | uint32_t i; |
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108 | |
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109 | rtems_test_assert(breq->req == RTEMS_BLKDEV_REQ_READ); |
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110 | |
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111 | for (i = 0; i < breq->bufnum; ++i) { |
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112 | rtems_blkdev_bnum block = sg [i].block; |
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113 | |
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114 | rtems_test_assert(block < BLOCK_COUNT); |
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115 | |
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116 | ++block_access_counts [block]; |
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117 | } |
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118 | |
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119 | (*breq->req_done)(breq->done_arg, RTEMS_SUCCESSFUL); |
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120 | } else { |
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121 | errno = EINVAL; |
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122 | rv = -1; |
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123 | } |
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124 | |
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125 | return rv; |
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126 | } |
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127 | |
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128 | static void test_read_ahead(rtems_disk_device *dd) |
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129 | { |
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130 | int i; |
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131 | |
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132 | for (i = 0; i < READ_COUNT; ++i) { |
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133 | int action = action_sequence [i]; |
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134 | |
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135 | if (action != RESET_CACHE) { |
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136 | rtems_blkdev_bnum block = (rtems_blkdev_bnum) action; |
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137 | rtems_status_code sc; |
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138 | rtems_bdbuf_buffer *bd; |
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139 | |
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140 | printf("%i ", action); |
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141 | |
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142 | sc = rtems_bdbuf_read(dd, block, &bd); |
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143 | rtems_test_assert(sc == RTEMS_SUCCESSFUL); |
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144 | |
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145 | sc = rtems_bdbuf_release(bd); |
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146 | rtems_test_assert(sc == RTEMS_SUCCESSFUL); |
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147 | |
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148 | rtems_test_assert( |
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149 | memcmp( |
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150 | block_access_counts, |
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151 | expected_block_access_counts [i], |
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152 | sizeof(block_access_counts) |
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153 | ) == 0 |
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154 | ); |
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155 | } else { |
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156 | printf("\nreset\n"); |
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157 | |
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158 | rtems_bdbuf_purge_dev(dd); |
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159 | memset(&block_access_counts, 0, sizeof(block_access_counts)); |
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160 | } |
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161 | |
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162 | rtems_test_assert(trigger [i] == dd->read_ahead.trigger); |
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163 | rtems_test_assert(next [i] == dd->read_ahead.next); |
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164 | } |
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165 | |
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166 | printf("\n"); |
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167 | } |
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168 | |
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169 | static void test(void) |
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170 | { |
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171 | rtems_status_code sc; |
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172 | dev_t dev = 0; |
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173 | rtems_disk_device *dd; |
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174 | |
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175 | sc = rtems_disk_io_initialize(); |
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176 | rtems_test_assert(sc == RTEMS_SUCCESSFUL); |
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177 | |
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178 | sc = rtems_disk_create_phys( |
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179 | dev, |
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180 | 1, |
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181 | BLOCK_COUNT, |
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182 | test_disk_ioctl, |
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183 | NULL, |
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184 | NULL |
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185 | ); |
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186 | rtems_test_assert(sc == RTEMS_SUCCESSFUL); |
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187 | |
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188 | dd = rtems_disk_obtain(dev); |
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189 | rtems_test_assert(dd != NULL); |
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190 | |
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191 | test_read_ahead(dd); |
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192 | |
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193 | sc = rtems_disk_release(dd); |
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194 | rtems_test_assert(sc == RTEMS_SUCCESSFUL); |
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195 | |
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196 | sc = rtems_disk_delete(dev); |
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197 | rtems_test_assert(sc == RTEMS_SUCCESSFUL); |
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198 | } |
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199 | |
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200 | static void Init(rtems_task_argument arg) |
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201 | { |
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202 | puts("\n\n*** TEST BLOCK 13 ***"); |
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203 | |
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204 | test(); |
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205 | |
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206 | puts("*** END OF TEST BLOCK 13 ***"); |
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207 | |
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208 | rtems_test_exit(0); |
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209 | } |
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210 | |
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211 | #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER |
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212 | #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER |
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213 | #define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK |
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214 | |
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215 | #define CONFIGURE_BDBUF_BUFFER_MIN_SIZE 1 |
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216 | #define CONFIGURE_BDBUF_BUFFER_MAX_SIZE 1 |
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217 | #define CONFIGURE_BDBUF_CACHE_MEMORY_SIZE BLOCK_COUNT |
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218 | #define CONFIGURE_BDBUF_MAX_READ_AHEAD_BLOCKS 2 |
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219 | #define CONFIGURE_BDBUF_READ_AHEAD_TASK_PRIORITY 1 |
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220 | |
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221 | #define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM |
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222 | |
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223 | #define CONFIGURE_MAXIMUM_TASKS 1 |
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224 | |
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225 | #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |
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226 | |
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227 | #define CONFIGURE_INIT_TASK_INITIAL_MODES RTEMS_DEFAULT_MODES |
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228 | #define CONFIGURE_INIT_TASK_PRIORITY 2 |
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229 | |
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230 | #define CONFIGURE_INIT |
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231 | |
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232 | #include <rtems/confdefs.h> |
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