1 | /* |
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2 | * rpc.c - RPC related operations implementation. |
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3 | * |
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4 | * Author Alain Greiner (2016,2017) |
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5 | * |
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6 | * Copyright (c) UPMC Sorbonne Universites |
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7 | * |
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8 | * This file is part of ALMOS-MKH. |
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9 | * |
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10 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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11 | * under the terms of the GNU General Public License as published by |
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12 | * the Free Software Foundation; version 2.0 of the License. |
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13 | * |
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14 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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17 | * General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
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21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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22 | */ |
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23 | |
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24 | #include <kernel_config.h> |
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25 | #include <hal_types.h> |
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26 | #include <hal_atomic.h> |
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27 | #include <hal_remote.h> |
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28 | #include <hal_irqmask.h> |
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29 | #include <hal_special.h> |
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30 | #include <printk.h> |
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31 | #include <remote_sem.h> |
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32 | #include <core.h> |
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33 | #include <mapper.h> |
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34 | #include <chdev.h> |
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35 | #include <bits.h> |
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36 | #include <thread.h> |
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37 | #include <cluster.h> |
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38 | #include <process.h> |
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39 | #include <vfs.h> |
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40 | #include <fatfs.h> |
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41 | #include <signal.h> |
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42 | #include <rpc.h> |
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43 | |
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44 | ///////////////////////////////////////////////////////////////////////////////////////// |
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45 | // array of function pointers (must be consistent with enum in rpc.h) |
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46 | ///////////////////////////////////////////////////////////////////////////////////////// |
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47 | |
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48 | rpc_server_t * rpc_server[RPC_MAX_INDEX] = |
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49 | { |
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50 | &rpc_pmem_get_pages_server, // 0 |
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51 | &rpc_process_pid_alloc_server, // 1 |
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52 | &rpc_process_exec_server, // 2 |
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53 | &rpc_process_kill_server, // 3 |
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54 | &rpc_thread_user_create_server, // 4 |
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55 | &rpc_thread_kernel_create_server, // 5 |
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56 | &rpc_signal_rise_server, // 6 |
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57 | &rpc_undefined, // 7 |
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58 | &rpc_undefined, // 8 |
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59 | &rpc_undefined, // 9 |
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60 | |
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61 | &rpc_vfs_inode_create_server, // 10 |
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62 | &rpc_vfs_inode_destroy_server, // 11 |
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63 | &rpc_vfs_dentry_create_server, // 12 |
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64 | &rpc_vfs_dentry_destroy_server, // 13 |
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65 | &rpc_vfs_file_create_server, // 14 |
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66 | &rpc_vfs_file_destroy_server, // 15 |
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67 | &rpc_vfs_inode_load_server, // 16 |
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68 | &rpc_vfs_mapper_load_all_server, // 17 |
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69 | &rpc_fatfs_get_cluster_server, // 18 |
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70 | &rpc_undefined, // 19 |
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71 | |
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72 | &rpc_vmm_get_ref_vseg_server, // 20 |
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73 | &rpc_vmm_get_pte_server, // 21 |
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74 | &rpc_kcm_alloc_server, // 22 |
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75 | &rpc_kcm_free_server, // 23 |
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76 | &rpc_mapper_move_buffer_server, // 24 |
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77 | &rpc_undefined, // 25 |
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78 | &rpc_undefined, // 26 |
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79 | &rpc_undefined, // 27 |
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80 | &rpc_undefined, // 28 |
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81 | &rpc_undefined, // 29 |
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82 | }; |
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83 | |
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84 | ////////////////////////////////////////////// |
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85 | void __attribute__((noinline)) rpc_undefined() |
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86 | { |
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87 | printk("\n[PANIC] ‰s called in cluster %x\n", __FUNCTION__ , local_cxy ); |
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88 | hal_core_sleep(); |
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89 | } |
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90 | |
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91 | ///////////////////////////////////////////////////////////////////////////////////////// |
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92 | // [0] Marshaling functions attached to RPC_PMEM_GET_PAGES |
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93 | ///////////////////////////////////////////////////////////////////////////////////////// |
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94 | |
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95 | /////////////////////////////////////////////// |
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96 | void rpc_pmem_get_pages_client( cxy_t cxy, |
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97 | uint32_t order, // in |
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98 | error_t * error, // out |
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99 | uint32_t * ppn ) // out |
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100 | { |
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101 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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102 | |
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103 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
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104 | |
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105 | // initialise RPC descriptor header |
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106 | rpc_desc_t rpc; |
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107 | rpc.index = RPC_PMEM_GET_PAGES; |
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108 | rpc.response = 1; |
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109 | |
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110 | // set input arguments in RPC descriptor |
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111 | rpc.args[0] = (uint64_t)order; |
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112 | |
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113 | // register RPC request in remote RPC fifo (blocking function) |
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114 | rpc_send_sync( cxy , &rpc ); |
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115 | |
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116 | // get output arguments RPC descriptor |
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117 | *error = (error_t)rpc.args[0]; |
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118 | *ppn = (uint32_t)rpc.args[1]; |
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119 | |
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120 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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121 | } |
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122 | |
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123 | /////////////////////////////////////////// |
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124 | void rpc_pmem_get_pages_server( xptr_t xp ) |
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125 | { |
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126 | uint32_t order; // input |
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127 | error_t error; // output |
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128 | uint32_t ppn; // output |
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129 | |
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130 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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131 | |
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132 | // get client cluster identifier and pointer on RPC descriptor |
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133 | cxy_t cxy = (cxy_t)GET_CXY( xp ); |
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134 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
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135 | |
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136 | // get input arguments from client RPC descriptor |
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137 | order = hal_remote_lw( XPTR( cxy , &desc->args[0] ) ); |
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138 | |
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139 | // call local pmem allocator |
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140 | page_t * page = ppm_alloc_pages( order ); |
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141 | error = ( page == NULL ) ? ENOMEM : 0; |
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142 | ppn = ppm_page2ppn( page ); |
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143 | |
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144 | // set output arguments into client RPC descriptor |
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145 | hal_remote_sw( XPTR( cxy , &desc->args[0] ) , error ); |
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146 | hal_remote_sw( XPTR( cxy , &desc->args[1] ) , ppn ); |
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147 | |
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148 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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149 | } |
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150 | |
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151 | ///////////////////////////////////////////////////////////////////////////////////////// |
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152 | // [1] Marshaling functions attached to RPC_PROCESS_PID_ALLOC |
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153 | ///////////////////////////////////////////////////////////////////////////////////////// |
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154 | |
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155 | ////////////////////////////////////////////////// |
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156 | void rpc_process_pid_alloc_client( cxy_t cxy, |
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157 | process_t * process, // in |
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158 | error_t * error, // out |
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159 | pid_t * pid ) // out |
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160 | { |
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161 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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162 | |
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163 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
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164 | |
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165 | // initialise RPC descriptor header |
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166 | rpc_desc_t rpc; |
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167 | rpc.index = RPC_PROCESS_PID_ALLOC; |
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168 | rpc.response = 1; |
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169 | |
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170 | // set input arguments in RPC descriptor |
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171 | rpc.args[0] = (uint64_t)(intptr_t)process; |
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172 | |
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173 | // register RPC request in remote RPC fifo (blocking function) |
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174 | rpc_send_sync( cxy , &rpc ); |
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175 | |
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176 | // get output arguments RPC descriptor |
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177 | *pid = (pid_t)rpc.args[1]; |
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178 | *error = (error_t)rpc.args[2]; |
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179 | |
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180 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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181 | } |
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182 | |
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183 | ////////////////////////////////////////////// |
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184 | void rpc_process_pid_alloc_server( xptr_t xp ) |
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185 | { |
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186 | process_t * process; // input : client process descriptor |
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187 | error_t error; // output : error status |
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188 | pid_t pid; // output : process identifier |
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189 | |
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190 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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191 | |
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192 | // get client cluster identifier and pointer on RPC descriptor |
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193 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
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194 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
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195 | |
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196 | // get input argument from client RPC descriptor |
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197 | process = (process_t*)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
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198 | |
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199 | // call local pid allocator |
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200 | xptr_t xp_process = XPTR( client_cxy , process ); |
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201 | error = cluster_pid_alloc( xp_process , &pid ); |
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202 | |
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203 | // set output arguments into client RPC descriptor |
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204 | hal_remote_sw( XPTR( client_cxy , &desc->args[0] ) , (uint64_t)error ); |
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205 | hal_remote_sw( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)pid ); |
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206 | |
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207 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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208 | } |
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209 | |
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210 | |
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211 | ///////////////////////////////////////////////////////////////////////////////////////// |
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212 | // [2] Marshaling functions attached to RPC_PROCESS_EXEC |
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213 | ///////////////////////////////////////////////////////////////////////////////////////// |
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214 | |
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215 | //////////////////////////////////////////////// |
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216 | void rpc_process_exec_client( cxy_t cxy, |
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217 | exec_info_t * info, // in |
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218 | error_t * error ) // out |
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219 | { |
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220 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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221 | |
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222 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
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223 | |
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224 | // initialise RPC descriptor header |
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225 | rpc_desc_t rpc; |
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226 | rpc.index = RPC_PROCESS_EXEC; |
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227 | rpc.response = 1; |
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228 | |
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229 | // set input arguments in RPC descriptor |
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230 | rpc.args[0] = (uint64_t)(intptr_t)info; |
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231 | |
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232 | // register RPC request in remote RPC fifo (blocking function) |
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233 | rpc_send_sync( cxy , &rpc ); |
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234 | |
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235 | // get output arguments from RPC descriptor |
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236 | *error = (error_t)rpc.args[1]; |
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237 | |
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238 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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239 | } |
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240 | |
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241 | ///////////////////////////////////////// |
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242 | void rpc_process_exec_server( xptr_t xp ) |
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243 | { |
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244 | exec_info_t * ptr; // local pointer on remote exec_info structure |
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245 | exec_info_t info; // local copy of exec_info structure |
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246 | error_t error; // local error error status |
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247 | |
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248 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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249 | |
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250 | // get client cluster identifier and pointer on RPC descriptor |
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251 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
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252 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
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253 | |
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254 | // get pointer on exec_info structure in client cluster from RPC descriptor |
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255 | ptr = (exec_info_t*)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
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256 | |
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257 | // copy exec_info structure from client buffer to server buffer |
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258 | hal_remote_memcpy( XPTR( client_cxy , ptr ), |
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259 | XPTR( local_cxy , &info ), |
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260 | sizeof(exec_info_t) ); |
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261 | |
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262 | // call local kernel function |
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263 | error = process_make_exec( &info ); |
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264 | |
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265 | // set output argument into client RPC descriptor |
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266 | hal_remote_swd( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error ); |
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267 | |
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268 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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269 | } |
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270 | |
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271 | |
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272 | ///////////////////////////////////////////////////////////////////////////////////////// |
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273 | // [3] Marshaling functions attached to RPC_PROCESS_KILL |
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274 | ///////////////////////////////////////////////////////////////////////////////////////// |
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275 | |
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276 | /////////////////////////////////////////////////// |
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277 | void rpc_process_kill_client( process_t * process ) |
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278 | { |
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279 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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280 | |
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281 | // only reference cluster can send this RPC |
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282 | assert( (GET_CXY( process->ref_xp ) == local_cxy) , __FUNCTION__ , |
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283 | "caller must be reference process cluster\n"); |
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284 | |
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285 | // get local process index in reference cluster |
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286 | lpid_t lpid = LPID_FROM_PID( process->pid ); |
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287 | |
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288 | // get local process manager pointer |
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289 | pmgr_t * pmgr = &LOCAL_CLUSTER->pmgr; |
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290 | |
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291 | // get number of copies |
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292 | uint32_t copies = pmgr->copies_nr[lpid]; |
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293 | |
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294 | // initialise RPC descriptor |
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295 | rpc_desc_t rpc; |
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296 | rpc.index = RPC_PROCESS_KILL; |
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297 | rpc.response = copies; |
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298 | rpc.args[0] = (uint64_t)process->pid; |
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299 | |
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300 | // loop on list of copies to send RPC |
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301 | xptr_t iter; |
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302 | XLIST_FOREACH( XPTR( local_cxy , &pmgr->copies_root[lpid] ) , iter ) |
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303 | { |
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304 | // get cluster_identifier for current copy |
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305 | cxy_t target_cxy = GET_CXY( iter ); |
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306 | |
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307 | // register RPC request in remote RPC fifo ... but the reference |
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308 | if( target_cxy != local_cxy ) rpc_send_sync( target_cxy , &rpc ); |
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309 | } |
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310 | |
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311 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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312 | } |
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313 | |
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314 | ///////////////////////////////////////// |
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315 | void rpc_process_kill_server( xptr_t xp ) |
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316 | { |
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317 | pid_t pid; |
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318 | process_t * process; |
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319 | |
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320 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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321 | |
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322 | // get client cluster identifier and pointer on RPC descriptor |
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323 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
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324 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
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325 | |
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326 | // get pid argument from RPC descriptor |
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327 | pid = (pid_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
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328 | |
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329 | // get process pointer to call local kernel function |
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330 | process = cluster_get_local_process_from_pid( pid ); |
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331 | |
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332 | if( process == NULL ) // process not found => do nothing |
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333 | { |
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334 | printk("\n[WARNING] in %s : process %x not found in cluster %x\n", |
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335 | __FUNCTION__ , pid , local_cxy ); |
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336 | } |
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337 | else // destroy process |
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338 | { |
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339 | process_kill( process ); |
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340 | } |
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341 | |
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342 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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343 | } |
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344 | |
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345 | |
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346 | ///////////////////////////////////////////////////////////////////////////////////////// |
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347 | // [4] Marshaling functions attached to RPC_THREAD_USER_CREATE |
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348 | ///////////////////////////////////////////////////////////////////////////////////////// |
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349 | |
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350 | ///////////////////////////////////////////////////////// |
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351 | void rpc_thread_user_create_client( cxy_t cxy, |
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352 | pid_t pid, // in |
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353 | void * start_func, // in |
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354 | void * start_arg, // in |
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355 | pthread_attr_t * attr, // in |
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356 | xptr_t * thread_xp, // out |
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357 | error_t * error ) // out |
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358 | { |
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359 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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360 | |
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361 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
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362 | |
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363 | // initialise RPC descriptor header |
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364 | rpc_desc_t rpc; |
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365 | rpc.index = RPC_THREAD_USER_CREATE; |
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366 | rpc.response = 1; |
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367 | |
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368 | // set input arguments in RPC descriptor |
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369 | rpc.args[0] = (uint64_t)pid; |
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370 | rpc.args[1] = (uint64_t)(intptr_t)start_func; |
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371 | rpc.args[2] = (uint64_t)(intptr_t)start_arg; |
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372 | rpc.args[3] = (uint64_t)(intptr_t)attr; |
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373 | |
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374 | // register RPC request in remote RPC fifo |
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375 | rpc_send_sync( cxy , &rpc ); |
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376 | |
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377 | // get output arguments from RPC descriptor |
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378 | *thread_xp = (xptr_t)rpc.args[4]; |
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379 | *error = (error_t)rpc.args[5]; |
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380 | |
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381 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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382 | } |
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383 | |
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384 | /////////////////////////////////////////////// |
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385 | void rpc_thread_user_create_server( xptr_t xp ) |
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386 | { |
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387 | pthread_attr_t * attr_ptr; // pointer on attributes structure in client cluster |
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388 | pthread_attr_t attr_copy; // attributes structure copy in server cluster |
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389 | thread_t * thread_ptr; // local pointer on thread descriptor |
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390 | xptr_t thread_xp; // extended pointer on thread descriptor |
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391 | |
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392 | pid_t pid; // process identifier |
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393 | void * start_func; |
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394 | void * start_arg; |
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395 | error_t error; |
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396 | |
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397 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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398 | |
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399 | // get client cluster identifier and pointer on RPC descriptor |
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400 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
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401 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
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402 | |
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403 | // get pointer on attributes structure in client cluster from RPC descriptor |
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404 | |
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405 | // get input arguments from RPC descriptor |
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406 | pid = (pid_t) hal_remote_lwd(XPTR(client_cxy , &desc->args[0])); |
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407 | start_func = (void *)(intptr_t) hal_remote_lwd(XPTR(client_cxy , &desc->args[1])); |
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408 | start_arg = (void *)(intptr_t) hal_remote_lwd(XPTR(client_cxy , &desc->args[2])); |
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409 | attr_ptr = (pthread_attr_t *)(intptr_t)hal_remote_lwd(XPTR(client_cxy , &desc->args[3])); |
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410 | |
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411 | // makes a local copy of attributes structure |
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412 | hal_remote_memcpy( XPTR( local_cxy , &attr_copy ), |
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413 | XPTR( client_cxy , attr_ptr ), |
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414 | sizeof(pthread_attr_t) ); |
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415 | |
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416 | assert( (attr_copy.cxy == local_cxy) , __FUNCTION__ , "bad target cluster\n" ); |
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417 | |
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418 | // call kernel function |
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419 | error = thread_user_create( pid, |
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420 | start_func, |
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421 | start_arg, |
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422 | &attr_copy, |
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423 | &thread_ptr ); |
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424 | |
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425 | // set output arguments |
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426 | thread_xp = XPTR( local_cxy , thread_ptr ); |
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427 | hal_remote_swd( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error ); |
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428 | hal_remote_swd( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)thread_xp ); |
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429 | |
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430 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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431 | } |
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432 | |
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433 | ///////////////////////////////////////////////////////////////////////////////////////// |
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434 | // [5] Marshaling functions attached to RPC_THREAD_KERNEL_CREATE |
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435 | ///////////////////////////////////////////////////////////////////////////////////////// |
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436 | |
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437 | //////////////////////////////////////////////////// |
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438 | void rpc_thread_kernel_create_client( cxy_t cxy, |
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439 | uint32_t type, // in |
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440 | void * func, // in |
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441 | void * args, // in |
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442 | xptr_t * thread_xp, // out |
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443 | error_t * error ) // out |
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444 | { |
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445 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
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446 | |
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447 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
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448 | |
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449 | // initialise RPC descriptor header |
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450 | rpc_desc_t rpc; |
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451 | rpc.index = RPC_THREAD_KERNEL_CREATE; |
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452 | rpc.response = 1; |
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453 | |
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454 | // set input arguments in RPC descriptor |
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455 | rpc.args[0] = (uint64_t)type; |
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456 | rpc.args[1] = (uint64_t)(intptr_t)func; |
---|
457 | rpc.args[2] = (uint64_t)(intptr_t)args; |
---|
458 | |
---|
459 | // register RPC request in remote RPC fifo |
---|
460 | rpc_send_sync( cxy , &rpc ); |
---|
461 | |
---|
462 | // get output arguments from RPC descriptor |
---|
463 | *thread_xp = (xptr_t)rpc.args[3]; |
---|
464 | *error = (error_t)rpc.args[4]; |
---|
465 | |
---|
466 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
467 | } |
---|
468 | |
---|
469 | ///////////////////////////////////////////////// |
---|
470 | void rpc_thread_kernel_create_server( xptr_t xp ) |
---|
471 | { |
---|
472 | thread_t * thread_ptr; // local pointer on thread descriptor |
---|
473 | xptr_t thread_xp; // extended pointer on thread descriptor |
---|
474 | lid_t core_lid; // core local index |
---|
475 | error_t error; |
---|
476 | |
---|
477 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
478 | |
---|
479 | // get client cluster identifier and pointer on RPC descriptor |
---|
480 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
481 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
482 | |
---|
483 | // get attributes from RPC descriptor |
---|
484 | uint32_t type = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
---|
485 | void * func = (void*)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) ); |
---|
486 | void * args = (void*)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) ); |
---|
487 | |
---|
488 | // select one core |
---|
489 | core_lid = cluster_select_local_core(); |
---|
490 | |
---|
491 | // call local kernel function |
---|
492 | error = thread_kernel_create( &thread_ptr , type , func , args , core_lid ); |
---|
493 | |
---|
494 | // set output arguments |
---|
495 | thread_xp = XPTR( local_cxy , thread_ptr ); |
---|
496 | hal_remote_swd( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)error ); |
---|
497 | hal_remote_swd( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)thread_xp ); |
---|
498 | |
---|
499 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
500 | } |
---|
501 | |
---|
502 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
503 | // [6] Marshaling functions attached to RPC_SIGNAL_RISE |
---|
504 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
505 | |
---|
506 | ///////////////////////////////////////////// |
---|
507 | void rpc_signal_rise_client( cxy_t cxy, |
---|
508 | process_t * process, // in |
---|
509 | uint32_t sig_id ) // in |
---|
510 | { |
---|
511 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
512 | |
---|
513 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
514 | |
---|
515 | // initialise RPC descriptor header |
---|
516 | rpc_desc_t rpc; |
---|
517 | rpc.index = RPC_SIGNAL_RISE; |
---|
518 | rpc.response = 1; |
---|
519 | |
---|
520 | // set input arguments in RPC descriptor |
---|
521 | rpc.args[0] = (uint64_t)(intptr_t)process; |
---|
522 | rpc.args[1] = (uint64_t)sig_id; |
---|
523 | |
---|
524 | // register RPC request in remote RPC fifo |
---|
525 | rpc_send_sync( cxy , &rpc ); |
---|
526 | |
---|
527 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
528 | } |
---|
529 | |
---|
530 | //////////////////////////////////////// |
---|
531 | void rpc_signal_rise_server( xptr_t xp ) |
---|
532 | { |
---|
533 | process_t * process; // local pointer on process descriptor |
---|
534 | uint32_t sig_id; // signal index |
---|
535 | |
---|
536 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
537 | |
---|
538 | // get client cluster identifier and pointer on RPC descriptor |
---|
539 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
540 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
541 | |
---|
542 | // get attributes from RPC descriptor |
---|
543 | process = (process_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
---|
544 | sig_id = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) ); |
---|
545 | |
---|
546 | // call local kernel function |
---|
547 | signal_rise( process , sig_id ); |
---|
548 | |
---|
549 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
550 | } |
---|
551 | |
---|
552 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
553 | // [10] Marshaling functions attached to RPC_VFS_INODE_CREATE |
---|
554 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
555 | |
---|
556 | ///////////////////////////////////////////////////// |
---|
557 | void rpc_vfs_inode_create_client( cxy_t cxy, |
---|
558 | xptr_t dentry_xp, // in |
---|
559 | uint32_t fs_type, // in |
---|
560 | uint32_t inode_type, // in |
---|
561 | void * extend, // in |
---|
562 | uint32_t attr, // in |
---|
563 | uint32_t rights, // in |
---|
564 | uint32_t uid, // in |
---|
565 | uint32_t gid, // in |
---|
566 | xptr_t * inode_xp, // out |
---|
567 | error_t * error ) // out |
---|
568 | { |
---|
569 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
570 | |
---|
571 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
572 | |
---|
573 | // initialise RPC descriptor header |
---|
574 | rpc_desc_t rpc; |
---|
575 | rpc.index = RPC_VFS_INODE_CREATE; |
---|
576 | rpc.response = 1; |
---|
577 | |
---|
578 | // set input arguments in RPC descriptor |
---|
579 | rpc.args[0] = (uint64_t)dentry_xp; |
---|
580 | rpc.args[1] = (uint64_t)fs_type; |
---|
581 | rpc.args[2] = (uint64_t)inode_type; |
---|
582 | rpc.args[3] = (uint64_t)(intptr_t)extend; |
---|
583 | rpc.args[4] = (uint64_t)attr; |
---|
584 | rpc.args[5] = (uint64_t)rights; |
---|
585 | rpc.args[6] = (uint64_t)uid; |
---|
586 | rpc.args[7] = (uint64_t)gid; |
---|
587 | |
---|
588 | // register RPC request in remote RPC fifo (blocking function) |
---|
589 | rpc_send_sync( cxy , &rpc ); |
---|
590 | |
---|
591 | // get output values from RPC descriptor |
---|
592 | *inode_xp = (xptr_t)rpc.args[8]; |
---|
593 | *error = (error_t)rpc.args[9]; |
---|
594 | |
---|
595 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
596 | } |
---|
597 | |
---|
598 | ///////////////////////////////////////////// |
---|
599 | void rpc_vfs_inode_create_server( xptr_t xp ) |
---|
600 | { |
---|
601 | xptr_t dentry_xp; |
---|
602 | uint32_t fs_type; |
---|
603 | uint32_t inode_type; |
---|
604 | void * extend; |
---|
605 | uint32_t attr; |
---|
606 | uint32_t rights; |
---|
607 | uint32_t uid; |
---|
608 | uint32_t gid; |
---|
609 | xptr_t inode_xp; |
---|
610 | error_t error; |
---|
611 | |
---|
612 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
613 | |
---|
614 | // get client cluster identifier and pointer on RPC descriptor |
---|
615 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
616 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
617 | |
---|
618 | // get input arguments from client rpc descriptor |
---|
619 | dentry_xp = (xptr_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
---|
620 | fs_type = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) ); |
---|
621 | inode_type = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) ); |
---|
622 | extend = (void *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[3] ) ); |
---|
623 | attr = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[4] ) ); |
---|
624 | rights = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[5] ) ); |
---|
625 | uid = (uid_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[6] ) ); |
---|
626 | gid = (gid_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[7] ) ); |
---|
627 | |
---|
628 | // call local kernel function |
---|
629 | error = vfs_inode_create( dentry_xp, |
---|
630 | fs_type, |
---|
631 | inode_type, |
---|
632 | extend, |
---|
633 | attr, |
---|
634 | rights, |
---|
635 | uid, |
---|
636 | gid, |
---|
637 | &inode_xp ); |
---|
638 | |
---|
639 | // set output arguments |
---|
640 | hal_remote_swd( XPTR( client_cxy , &desc->args[8] ) , (uint64_t)inode_xp ); |
---|
641 | hal_remote_swd( XPTR( client_cxy , &desc->args[9] ) , (uint64_t)error ); |
---|
642 | |
---|
643 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
644 | } |
---|
645 | |
---|
646 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
647 | // [11] Marshaling functions attached to RPC_VFS_INODE_DESTROY |
---|
648 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
649 | |
---|
650 | ///////////////////////////////////////////////////////////// |
---|
651 | void rpc_vfs_inode_destroy_client( cxy_t cxy, |
---|
652 | struct vfs_inode_s * inode ) |
---|
653 | { |
---|
654 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
655 | |
---|
656 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
657 | |
---|
658 | // initialise RPC descriptor header |
---|
659 | rpc_desc_t rpc; |
---|
660 | rpc.index = RPC_VFS_INODE_DESTROY; |
---|
661 | rpc.response = 1; |
---|
662 | |
---|
663 | // set input arguments in RPC descriptor |
---|
664 | rpc.args[0] = (uint64_t)(intptr_t)inode; |
---|
665 | |
---|
666 | // register RPC request in remote RPC fifo (blocking function) |
---|
667 | rpc_send_sync( cxy , &rpc ); |
---|
668 | |
---|
669 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
670 | } |
---|
671 | |
---|
672 | ////////////////////////////////////////////// |
---|
673 | void rpc_vfs_inode_destroy_server( xptr_t xp ) |
---|
674 | { |
---|
675 | vfs_inode_t * inode; |
---|
676 | |
---|
677 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
678 | |
---|
679 | // get client cluster identifier and pointer on RPC descriptor |
---|
680 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
681 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
682 | |
---|
683 | // get arguments "inode" from client RPC descriptor |
---|
684 | inode = (vfs_inode_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
---|
685 | |
---|
686 | // call local kernel function |
---|
687 | vfs_inode_destroy( inode ); |
---|
688 | |
---|
689 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
690 | } |
---|
691 | |
---|
692 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
693 | // [12] Marshaling functions attached to RPC_VFS_DENTRY_CREATE |
---|
694 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
695 | |
---|
696 | ////////////////////////////////////////////////////////////// |
---|
697 | void rpc_vfs_dentry_create_client( cxy_t cxy, |
---|
698 | uint32_t type, // in |
---|
699 | char * name, // in |
---|
700 | struct vfs_inode_s * parent, // in |
---|
701 | xptr_t * dentry_xp, // out |
---|
702 | error_t * error ) // out |
---|
703 | { |
---|
704 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
705 | |
---|
706 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
707 | |
---|
708 | // initialise RPC descriptor header |
---|
709 | rpc_desc_t rpc; |
---|
710 | rpc.index = RPC_VFS_DENTRY_CREATE; |
---|
711 | rpc.response = 1; |
---|
712 | |
---|
713 | // set input arguments in RPC descriptor |
---|
714 | rpc.args[0] = (uint64_t)type; |
---|
715 | rpc.args[1] = (uint64_t)(intptr_t)name; |
---|
716 | rpc.args[2] = (uint64_t)(intptr_t)parent; |
---|
717 | |
---|
718 | // register RPC request in remote RPC fifo (blocking function) |
---|
719 | rpc_send_sync( cxy , &rpc ); |
---|
720 | |
---|
721 | // get output values from RPC descriptor |
---|
722 | *dentry_xp = (xptr_t)rpc.args[3]; |
---|
723 | *error = (error_t)rpc.args[4]; |
---|
724 | |
---|
725 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
726 | } |
---|
727 | |
---|
728 | ////////////////////////////////////////////// |
---|
729 | void rpc_vfs_dentry_create_server( xptr_t xp ) |
---|
730 | { |
---|
731 | uint32_t type; |
---|
732 | char * name; |
---|
733 | vfs_inode_t * parent; |
---|
734 | xptr_t dentry_xp; |
---|
735 | error_t error; |
---|
736 | |
---|
737 | char name_copy[CONFIG_VFS_MAX_NAME_LENGTH]; |
---|
738 | |
---|
739 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
740 | |
---|
741 | // get client cluster identifier and pointer on RPC descriptor |
---|
742 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
743 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
744 | |
---|
745 | // get arguments "name", "type", and "parent" from client RPC descriptor |
---|
746 | type = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
---|
747 | name = (char *)(intptr_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) ); |
---|
748 | parent = (vfs_inode_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) ); |
---|
749 | |
---|
750 | // makes a local copy of name |
---|
751 | hal_remote_strcpy( XPTR( local_cxy , name_copy ), |
---|
752 | XPTR( client_cxy , name ) ); |
---|
753 | |
---|
754 | // call local kernel function |
---|
755 | error = vfs_dentry_create( type, |
---|
756 | name_copy, |
---|
757 | parent, |
---|
758 | &dentry_xp ); |
---|
759 | // set output arguments |
---|
760 | hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)dentry_xp ); |
---|
761 | hal_remote_swd( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)error ); |
---|
762 | |
---|
763 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
764 | } |
---|
765 | |
---|
766 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
767 | // [13] Marshaling functions attached to RPC_VFS_DENTRY_DESTROY |
---|
768 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
769 | |
---|
770 | |
---|
771 | /////////////////////////////////////////////////////// |
---|
772 | void rpc_vfs_dentry_destroy_client( cxy_t cxy, |
---|
773 | vfs_dentry_t * dentry ) |
---|
774 | { |
---|
775 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
776 | |
---|
777 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
778 | |
---|
779 | // initialise RPC descriptor header |
---|
780 | rpc_desc_t rpc; |
---|
781 | rpc.index = RPC_VFS_DENTRY_DESTROY; |
---|
782 | rpc.response = 1; |
---|
783 | |
---|
784 | // set input arguments in RPC descriptor |
---|
785 | rpc.args[0] = (uint64_t)(intptr_t)dentry; |
---|
786 | |
---|
787 | // register RPC request in remote RPC fifo (blocking function) |
---|
788 | rpc_send_sync( cxy , &rpc ); |
---|
789 | |
---|
790 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
791 | } |
---|
792 | |
---|
793 | /////////////////////////////////////////////// |
---|
794 | void rpc_vfs_dentry_destroy_server( xptr_t xp ) |
---|
795 | { |
---|
796 | vfs_dentry_t * dentry; |
---|
797 | |
---|
798 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
799 | |
---|
800 | // get client cluster identifier and pointer on RPC descriptor |
---|
801 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
802 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
803 | |
---|
804 | // get arguments "dentry" from client RPC descriptor |
---|
805 | dentry = (vfs_dentry_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
---|
806 | |
---|
807 | // call local kernel function |
---|
808 | vfs_dentry_destroy( dentry ); |
---|
809 | |
---|
810 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
811 | } |
---|
812 | |
---|
813 | |
---|
814 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
815 | // [14] Marshaling functions attached to RPC_VFS_FILE_CREATE |
---|
816 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
817 | |
---|
818 | ////////////////////////////////////////////////////////////// |
---|
819 | void rpc_vfs_file_create_client( cxy_t cxy, |
---|
820 | struct vfs_inode_s * inode, // in |
---|
821 | uint32_t file_attr, // in |
---|
822 | xptr_t * file_xp, // out |
---|
823 | error_t * error ) // out |
---|
824 | { |
---|
825 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
826 | |
---|
827 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
828 | |
---|
829 | // initialise RPC descriptor header |
---|
830 | rpc_desc_t rpc; |
---|
831 | rpc.index = RPC_VFS_FILE_CREATE; |
---|
832 | rpc.response = 1; |
---|
833 | |
---|
834 | // set input arguments in RPC descriptor |
---|
835 | rpc.args[0] = (uint64_t)(intptr_t)inode; |
---|
836 | rpc.args[1] = (uint64_t)file_attr; |
---|
837 | |
---|
838 | // register RPC request in remote RPC fifo (blocking function) |
---|
839 | rpc_send_sync( cxy , &rpc ); |
---|
840 | |
---|
841 | // get output values from RPC descriptor |
---|
842 | *file_xp = (xptr_t)rpc.args[2]; |
---|
843 | *error = (error_t)rpc.args[3]; |
---|
844 | |
---|
845 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
846 | } |
---|
847 | |
---|
848 | //////////////////////////////////////////// |
---|
849 | void rpc_vfs_file_create_server( xptr_t xp ) |
---|
850 | { |
---|
851 | uint32_t file_attr; |
---|
852 | vfs_inode_t * inode; |
---|
853 | xptr_t file_xp; |
---|
854 | error_t error; |
---|
855 | |
---|
856 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
857 | |
---|
858 | // get client cluster identifier and pointer on RPC descriptor |
---|
859 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
860 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
861 | |
---|
862 | // get arguments "file_attr" and "inode" from client RPC descriptor |
---|
863 | inode = (vfs_inode_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
---|
864 | file_attr = (uint32_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) ); |
---|
865 | |
---|
866 | // call local kernel function |
---|
867 | error = vfs_file_create( inode, |
---|
868 | file_attr, |
---|
869 | &file_xp ); |
---|
870 | |
---|
871 | // set output arguments |
---|
872 | hal_remote_swd( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)file_xp ); |
---|
873 | hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error ); |
---|
874 | |
---|
875 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
876 | } |
---|
877 | |
---|
878 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
879 | // [15] Marshaling functions attached to RPC_VFS_FILE_DESTROY |
---|
880 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
881 | |
---|
882 | /////////////////////////////////////////////////// |
---|
883 | void rpc_vfs_file_destroy_client( cxy_t cxy, |
---|
884 | vfs_file_t * file ) |
---|
885 | { |
---|
886 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
887 | |
---|
888 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
889 | |
---|
890 | // initialise RPC descriptor header |
---|
891 | rpc_desc_t rpc; |
---|
892 | rpc.index = RPC_VFS_FILE_DESTROY; |
---|
893 | rpc.response = 1; |
---|
894 | |
---|
895 | // set input arguments in RPC descriptor |
---|
896 | rpc.args[0] = (uint64_t)(intptr_t)file; |
---|
897 | |
---|
898 | // register RPC request in remote RPC fifo (blocking function) |
---|
899 | rpc_send_sync( cxy , &rpc ); |
---|
900 | |
---|
901 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
902 | } |
---|
903 | |
---|
904 | ///////////////////////////////////////////// |
---|
905 | void rpc_vfs_file_destroy_server( xptr_t xp ) |
---|
906 | { |
---|
907 | vfs_file_t * file; |
---|
908 | |
---|
909 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
910 | |
---|
911 | // get client cluster identifier and pointer on RPC descriptor |
---|
912 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
913 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
914 | |
---|
915 | // get arguments "dentry" from client RPC descriptor |
---|
916 | file = (vfs_file_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
---|
917 | |
---|
918 | // call local kernel function |
---|
919 | vfs_file_destroy( file ); |
---|
920 | |
---|
921 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
922 | } |
---|
923 | |
---|
924 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
925 | // [16] Marshaling functions attached to RPC_VFS_INODE_LOAD |
---|
926 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
927 | |
---|
928 | ////////////////////////////////////////////////// |
---|
929 | void rpc_vfs_inode_load_client( cxy_t cxy, |
---|
930 | vfs_inode_t * parent_inode, // in |
---|
931 | char * name, // in |
---|
932 | xptr_t child_inode_xp, // in |
---|
933 | error_t * error ) // out |
---|
934 | { |
---|
935 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
936 | |
---|
937 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
938 | |
---|
939 | // initialise RPC descriptor header |
---|
940 | rpc_desc_t rpc; |
---|
941 | rpc.index = RPC_VFS_INODE_LOAD; |
---|
942 | rpc.response = 1; |
---|
943 | |
---|
944 | // set input arguments in RPC descriptor |
---|
945 | rpc.args[0] = (uint64_t)(intptr_t)parent_inode; |
---|
946 | rpc.args[1] = (uint64_t)(intptr_t)name; |
---|
947 | rpc.args[2] = (uint64_t)child_inode_xp; |
---|
948 | |
---|
949 | // register RPC request in remote RPC fifo (blocking function) |
---|
950 | rpc_send_sync( cxy , &rpc ); |
---|
951 | |
---|
952 | // get output values from RPC descriptor |
---|
953 | *error = (error_t)rpc.args[3]; |
---|
954 | |
---|
955 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
956 | } |
---|
957 | |
---|
958 | /////////////////////////////////////////// |
---|
959 | void rpc_vfs_inode_load_server( xptr_t xp ) |
---|
960 | { |
---|
961 | error_t error; |
---|
962 | vfs_inode_t * parent; |
---|
963 | xptr_t child_xp; |
---|
964 | char * name; |
---|
965 | |
---|
966 | char name_copy[CONFIG_VFS_MAX_NAME_LENGTH]; |
---|
967 | |
---|
968 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
969 | |
---|
970 | // get client cluster identifier and pointer on RPC descriptor |
---|
971 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
972 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
973 | |
---|
974 | // get arguments "parent", "name", and "child_xp" |
---|
975 | parent = (vfs_inode_t*)(intptr_t)hal_remote_lwd(XPTR(client_cxy , &desc->args[0])); |
---|
976 | name = (char*)(intptr_t) hal_remote_lwd(XPTR(client_cxy , &desc->args[1])); |
---|
977 | child_xp = (xptr_t) hal_remote_lwd(XPTR(client_cxy , &desc->args[2])); |
---|
978 | |
---|
979 | // get name local copy |
---|
980 | hal_remote_strcpy( XPTR( local_cxy , name_copy ) , |
---|
981 | XPTR( client_cxy , name ) ); |
---|
982 | |
---|
983 | // call the kernel function |
---|
984 | error = vfs_inode_load( parent , name_copy , child_xp ); |
---|
985 | |
---|
986 | // set output argument |
---|
987 | hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error ); |
---|
988 | |
---|
989 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
990 | } |
---|
991 | |
---|
992 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
993 | // [17] Marshaling functions attached to RPC_VFS_MAPPER_LOAD_ALL |
---|
994 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
995 | |
---|
996 | /////////////////////////////////////////////////////// |
---|
997 | void rpc_vfs_mapper_load_all_client( cxy_t cxy, |
---|
998 | vfs_inode_t * inode, // in |
---|
999 | error_t * error ) // out |
---|
1000 | { |
---|
1001 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1002 | |
---|
1003 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
1004 | |
---|
1005 | // initialise RPC descriptor header |
---|
1006 | rpc_desc_t rpc; |
---|
1007 | rpc.index = RPC_VFS_INODE_LOAD; |
---|
1008 | rpc.response = 1; |
---|
1009 | |
---|
1010 | // set input arguments in RPC descriptor |
---|
1011 | rpc.args[0] = (uint64_t)(intptr_t)inode; |
---|
1012 | |
---|
1013 | // register RPC request in remote RPC fifo (blocking function) |
---|
1014 | rpc_send_sync( cxy , &rpc ); |
---|
1015 | |
---|
1016 | // get output values from RPC descriptor |
---|
1017 | *error = (error_t)rpc.args[1]; |
---|
1018 | |
---|
1019 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1020 | } |
---|
1021 | |
---|
1022 | //////////////////////////////////////////////// |
---|
1023 | void rpc_vfs_mapper_load_all_server( xptr_t xp ) |
---|
1024 | { |
---|
1025 | error_t error; |
---|
1026 | vfs_inode_t * inode; |
---|
1027 | |
---|
1028 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1029 | |
---|
1030 | // get client cluster identifier and pointer on RPC descriptor |
---|
1031 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
1032 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
1033 | |
---|
1034 | // get arguments "parent", "name", and "child_xp" |
---|
1035 | inode = (vfs_inode_t*)(intptr_t)hal_remote_lwd(XPTR(client_cxy , &desc->args[0])); |
---|
1036 | |
---|
1037 | // call the kernel function |
---|
1038 | error = vfs_mapper_load_all( inode ); |
---|
1039 | |
---|
1040 | // set output argument |
---|
1041 | hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)error ); |
---|
1042 | |
---|
1043 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1044 | } |
---|
1045 | |
---|
1046 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1047 | // [18] Marshaling functions attached to RPC_FATFS_GET_CLUSTER |
---|
1048 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1049 | |
---|
1050 | ////////////////////////////////////////////////// |
---|
1051 | void rpc_fatfs_get_cluster_client( cxy_t cxy, |
---|
1052 | mapper_t * mapper, // in |
---|
1053 | uint32_t first, // in |
---|
1054 | uint32_t page, // in |
---|
1055 | uint32_t * cluster, // out |
---|
1056 | error_t * error ) // out |
---|
1057 | { |
---|
1058 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1059 | |
---|
1060 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
1061 | |
---|
1062 | // initialise RPC descriptor header |
---|
1063 | rpc_desc_t rpc; |
---|
1064 | rpc.index = RPC_FATFS_GET_CLUSTER; |
---|
1065 | rpc.response = 1; |
---|
1066 | |
---|
1067 | // set input arguments in RPC descriptor |
---|
1068 | rpc.args[0] = (uint64_t)(intptr_t)mapper; |
---|
1069 | rpc.args[1] = (uint64_t)first; |
---|
1070 | rpc.args[2] = (uint64_t)page; |
---|
1071 | |
---|
1072 | // register RPC request in remote RPC fifo |
---|
1073 | rpc_send_sync( cxy , &rpc ); |
---|
1074 | |
---|
1075 | // get output argument from rpc descriptor |
---|
1076 | *cluster = (uint32_t)rpc.args[3]; |
---|
1077 | *error = (error_t)rpc.args[4]; |
---|
1078 | |
---|
1079 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1080 | } |
---|
1081 | |
---|
1082 | ////////////////////////////////////////////// |
---|
1083 | void rpc_fatfs_get_cluster_server( xptr_t xp ) |
---|
1084 | { |
---|
1085 | mapper_t * mapper; |
---|
1086 | uint32_t first; |
---|
1087 | uint32_t page; |
---|
1088 | uint32_t cluster; |
---|
1089 | error_t error; |
---|
1090 | |
---|
1091 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1092 | |
---|
1093 | // get client cluster identifier and pointer on RPC descriptor |
---|
1094 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
1095 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
1096 | |
---|
1097 | // get input arguments |
---|
1098 | mapper = (mapper_t *)(intptr_t)hal_remote_lpt( XPTR( client_cxy , &desc->args[0] ) ); |
---|
1099 | first = (uint32_t) hal_remote_lw ( XPTR( client_cxy , &desc->args[1] ) ); |
---|
1100 | page = (uint32_t) hal_remote_lw ( XPTR( client_cxy , &desc->args[2] ) ); |
---|
1101 | |
---|
1102 | // call the kernel function |
---|
1103 | error = fatfs_get_cluster( mapper , first , page , &cluster ); |
---|
1104 | |
---|
1105 | // set output argument |
---|
1106 | hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)cluster ); |
---|
1107 | hal_remote_swd( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)error ); |
---|
1108 | |
---|
1109 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1110 | } |
---|
1111 | |
---|
1112 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1113 | // [20] Marshaling functions attached to RPC_VMM_GET_REF_VSEG |
---|
1114 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1115 | |
---|
1116 | ////////////////////////////////////////////////// |
---|
1117 | void rpc_vmm_get_ref_vseg_client( cxy_t cxy, |
---|
1118 | process_t * process, // in |
---|
1119 | intptr_t vaddr, // in |
---|
1120 | xptr_t * vseg_xp ) // out |
---|
1121 | { |
---|
1122 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1123 | |
---|
1124 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
1125 | |
---|
1126 | // initialise RPC descriptor header |
---|
1127 | rpc_desc_t rpc; |
---|
1128 | rpc.index = RPC_VMM_GET_REF_VSEG; |
---|
1129 | rpc.response = 1; |
---|
1130 | |
---|
1131 | // set input arguments in RPC descriptor |
---|
1132 | rpc.args[0] = (uint64_t)(intptr_t)process; |
---|
1133 | rpc.args[1] = (uint64_t)vaddr; |
---|
1134 | |
---|
1135 | // register RPC request in remote RPC fifo (blocking function) |
---|
1136 | rpc_send_sync( cxy , &rpc ); |
---|
1137 | |
---|
1138 | // get output argument from rpc descriptor |
---|
1139 | *vseg_xp = rpc.args[2]; |
---|
1140 | |
---|
1141 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1142 | } |
---|
1143 | |
---|
1144 | ///////////////////////////////////////////// |
---|
1145 | void rpc_vmm_get_ref_vseg_server( xptr_t xp ) |
---|
1146 | { |
---|
1147 | process_t * process; |
---|
1148 | intptr_t vaddr; |
---|
1149 | vseg_t * vseg_ptr; |
---|
1150 | xptr_t vseg_xp; |
---|
1151 | |
---|
1152 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1153 | |
---|
1154 | // get client cluster identifier and pointer on RPC descriptor |
---|
1155 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
1156 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
1157 | |
---|
1158 | // get input argument from client RPC descriptor |
---|
1159 | process = (process_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
---|
1160 | vaddr = (intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) ); |
---|
1161 | |
---|
1162 | // call local kernel function |
---|
1163 | vseg_ptr = vmm_get_vseg( process , vaddr ); |
---|
1164 | |
---|
1165 | // set output argument to client RPC descriptor |
---|
1166 | if( vseg_ptr == NULL ) vseg_xp = XPTR_NULL; |
---|
1167 | else vseg_xp = XPTR( local_cxy , vseg_ptr ); |
---|
1168 | hal_remote_swd( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)vseg_xp ); |
---|
1169 | |
---|
1170 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1171 | } |
---|
1172 | |
---|
1173 | |
---|
1174 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1175 | // [21] Marshaling functions attached to RPC_VMM_GET_PTE |
---|
1176 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1177 | |
---|
1178 | //////////////////////////////////////////// |
---|
1179 | void rpc_vmm_get_pte_client( cxy_t cxy, |
---|
1180 | process_t * process, // in |
---|
1181 | vpn_t vpn, // in |
---|
1182 | uint32_t * attr, // out |
---|
1183 | ppn_t * ppn, // out |
---|
1184 | error_t * error ) // out |
---|
1185 | { |
---|
1186 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1187 | |
---|
1188 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
1189 | |
---|
1190 | // initialise RPC descriptor header |
---|
1191 | rpc_desc_t rpc; |
---|
1192 | rpc.index = RPC_VMM_GET_PTE; |
---|
1193 | rpc.response = 1; |
---|
1194 | |
---|
1195 | // set input arguments in RPC descriptor |
---|
1196 | rpc.args[0] = (uint64_t)(intptr_t)process; |
---|
1197 | rpc.args[1] = (uint64_t)vpn; |
---|
1198 | |
---|
1199 | // register RPC request in remote RPC fifo (blocking function) |
---|
1200 | rpc_send_sync( cxy , &rpc ); |
---|
1201 | |
---|
1202 | // get output argument from rpc descriptor |
---|
1203 | *attr = (uint32_t)rpc.args[2]; |
---|
1204 | *ppn = (ppn_t)rpc.args[3]; |
---|
1205 | *error = (error_t)rpc.args[4]; |
---|
1206 | |
---|
1207 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1208 | } |
---|
1209 | |
---|
1210 | //////////////////////////////////////// |
---|
1211 | void rpc_vmm_get_pte_server( xptr_t xp ) |
---|
1212 | { |
---|
1213 | process_t * process; |
---|
1214 | vpn_t vpn; |
---|
1215 | uint32_t attr; |
---|
1216 | ppn_t ppn; |
---|
1217 | error_t error; |
---|
1218 | |
---|
1219 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1220 | |
---|
1221 | // get client cluster identifier and pointer on RPC descriptor |
---|
1222 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
1223 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
1224 | |
---|
1225 | // get input argument "process" & "vpn" from client RPC descriptor |
---|
1226 | process = (process_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
---|
1227 | vpn = (vpn_t) hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) ); |
---|
1228 | |
---|
1229 | // call local kernel function |
---|
1230 | error = vmm_get_pte( process , vpn , &attr , &ppn ); |
---|
1231 | |
---|
1232 | // set output argument "attr" & "ppn" to client RPC descriptor |
---|
1233 | hal_remote_swd( XPTR( client_cxy , &desc->args[2] ) , (uint64_t)attr ); |
---|
1234 | hal_remote_swd( XPTR( client_cxy , &desc->args[3] ) , (uint64_t)ppn ); |
---|
1235 | hal_remote_swd( XPTR( client_cxy , &desc->args[4] ) , (uint64_t)error ); |
---|
1236 | |
---|
1237 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1238 | } |
---|
1239 | |
---|
1240 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1241 | // [22] Marshaling functions attached to RPC_KCM_ALLOC |
---|
1242 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1243 | |
---|
1244 | ////////////////////////////////////////// |
---|
1245 | void rpc_kcm_alloc_client( cxy_t cxy, |
---|
1246 | uint32_t kmem_type, // in |
---|
1247 | xptr_t * buf_xp ) // out |
---|
1248 | { |
---|
1249 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1250 | |
---|
1251 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
1252 | |
---|
1253 | // initialise RPC descriptor header |
---|
1254 | rpc_desc_t rpc; |
---|
1255 | rpc.index = RPC_THREAD_USER_CREATE; |
---|
1256 | rpc.response = 1; |
---|
1257 | |
---|
1258 | // set input arguments in RPC descriptor |
---|
1259 | rpc.args[0] = (uint64_t)kmem_type; |
---|
1260 | |
---|
1261 | // register RPC request in remote RPC fifo |
---|
1262 | rpc_send_sync( cxy , &rpc ); |
---|
1263 | |
---|
1264 | // get output arguments from RPC descriptor |
---|
1265 | *buf_xp = (xptr_t)rpc.args[1]; |
---|
1266 | |
---|
1267 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1268 | } |
---|
1269 | |
---|
1270 | ////////////////////////////////////// |
---|
1271 | void rpc_kcm_alloc_server( xptr_t xp ) |
---|
1272 | { |
---|
1273 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1274 | |
---|
1275 | // get client cluster identifier and pointer on RPC descriptor |
---|
1276 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
1277 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
1278 | |
---|
1279 | // get input argument "kmem_type" from client RPC descriptor |
---|
1280 | uint32_t kmem_type = (uint32_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
---|
1281 | |
---|
1282 | // allocates memory for kcm |
---|
1283 | kmem_req_t req; |
---|
1284 | req.type = kmem_type; |
---|
1285 | req.flags = AF_ZERO; |
---|
1286 | void * buf_ptr = kmem_alloc( &req ); |
---|
1287 | |
---|
1288 | // set output argument |
---|
1289 | xptr_t buf_xp = XPTR( local_cxy , buf_ptr ); |
---|
1290 | hal_remote_swd( XPTR( client_cxy , &desc->args[1] ) , (uint64_t)buf_xp ); |
---|
1291 | |
---|
1292 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1293 | } |
---|
1294 | |
---|
1295 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1296 | // [23] Marshaling functions attached to RPC_KCM_FREE |
---|
1297 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1298 | |
---|
1299 | ///////////////////////////////////////// |
---|
1300 | void rpc_kcm_free_client( cxy_t cxy, |
---|
1301 | void * buf, // in |
---|
1302 | uint32_t kmem_type ) // in |
---|
1303 | { |
---|
1304 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1305 | |
---|
1306 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
1307 | |
---|
1308 | // initialise RPC descriptor header |
---|
1309 | rpc_desc_t rpc; |
---|
1310 | rpc.index = RPC_THREAD_USER_CREATE; |
---|
1311 | rpc.response = 1; |
---|
1312 | |
---|
1313 | // set input arguments in RPC descriptor |
---|
1314 | rpc.args[0] = (uint64_t)(intptr_t)buf; |
---|
1315 | rpc.args[1] = (uint64_t)kmem_type; |
---|
1316 | |
---|
1317 | // register RPC request in remote RPC fifo |
---|
1318 | rpc_send_sync( cxy , &rpc ); |
---|
1319 | |
---|
1320 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1321 | } |
---|
1322 | |
---|
1323 | ///////////////////////////////////// |
---|
1324 | void rpc_kcm_free_server( xptr_t xp ) |
---|
1325 | { |
---|
1326 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1327 | |
---|
1328 | // get client cluster identifier and pointer on RPC descriptor |
---|
1329 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
1330 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
1331 | |
---|
1332 | // get input arguments "buf" and "kmem_type" from client RPC descriptor |
---|
1333 | void * buf = (void *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
---|
1334 | uint32_t kmem_type = (uint32_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) ); |
---|
1335 | |
---|
1336 | // releases memory |
---|
1337 | kmem_req_t req; |
---|
1338 | req.type = kmem_type; |
---|
1339 | req.ptr = buf; |
---|
1340 | kmem_free( &req ); |
---|
1341 | |
---|
1342 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1343 | } |
---|
1344 | |
---|
1345 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1346 | // [24] Marshaling functions attached to RPC_MAPPER_MOVE_BUFFER |
---|
1347 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
1348 | |
---|
1349 | /////////////////////////////////////////////////// |
---|
1350 | void rpc_mapper_move_buffer_client( cxy_t cxy, |
---|
1351 | mapper_t * mapper, // in |
---|
1352 | bool_t to_buffer, // in |
---|
1353 | bool_t is_user, // in |
---|
1354 | uint32_t file_offset, // in |
---|
1355 | void * buffer, // in |
---|
1356 | uint32_t size, // in |
---|
1357 | error_t * error ) // out |
---|
1358 | { |
---|
1359 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1360 | |
---|
1361 | assert( (cxy != local_cxy) , __FUNCTION__ , "target cluster is not remote\n"); |
---|
1362 | |
---|
1363 | // initialise RPC descriptor header |
---|
1364 | rpc_desc_t rpc; |
---|
1365 | rpc.index = RPC_MAPPER_MOVE_BUFFER; |
---|
1366 | rpc.response = 1; |
---|
1367 | |
---|
1368 | // set input arguments in RPC descriptor |
---|
1369 | rpc.args[0] = (uint64_t)(intptr_t)mapper; |
---|
1370 | rpc.args[1] = (uint64_t)to_buffer; |
---|
1371 | rpc.args[2] = (uint64_t)is_user; |
---|
1372 | rpc.args[3] = (uint64_t)file_offset; |
---|
1373 | rpc.args[4] = (uint64_t)(intptr_t)buffer; |
---|
1374 | rpc.args[5] = (uint64_t)size; |
---|
1375 | |
---|
1376 | // register RPC request in remote RPC fifo (blocking function) |
---|
1377 | rpc_send_sync( cxy , &rpc ); |
---|
1378 | |
---|
1379 | // get output values from RPC descriptor |
---|
1380 | *error = (error_t)rpc.args[6]; |
---|
1381 | |
---|
1382 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1383 | } |
---|
1384 | |
---|
1385 | /////////////////////////////////////////////// |
---|
1386 | void rpc_mapper_move_buffer_server( xptr_t xp ) |
---|
1387 | { |
---|
1388 | mapper_t * mapper; |
---|
1389 | bool_t to_buffer; |
---|
1390 | bool_t is_user; |
---|
1391 | uint32_t file_offset; |
---|
1392 | void * buffer; |
---|
1393 | uint32_t size; |
---|
1394 | error_t error; |
---|
1395 | |
---|
1396 | rpc_dmsg("\n[INFO] %s : enter at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1397 | |
---|
1398 | // get client cluster identifier and pointer on RPC descriptor |
---|
1399 | cxy_t client_cxy = (cxy_t)GET_CXY( xp ); |
---|
1400 | rpc_desc_t * desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
1401 | |
---|
1402 | // get arguments from client RPC descriptor |
---|
1403 | mapper = (mapper_t *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[0] ) ); |
---|
1404 | to_buffer = hal_remote_lwd( XPTR( client_cxy , &desc->args[1] ) ); |
---|
1405 | is_user = hal_remote_lwd( XPTR( client_cxy , &desc->args[2] ) ); |
---|
1406 | file_offset = hal_remote_lwd( XPTR( client_cxy , &desc->args[3] ) ); |
---|
1407 | buffer = (void *)(intptr_t)hal_remote_lwd( XPTR( client_cxy , &desc->args[4] ) ); |
---|
1408 | size = hal_remote_lwd( XPTR( client_cxy , &desc->args[5] ) ); |
---|
1409 | |
---|
1410 | // call local kernel function |
---|
1411 | error = mapper_move_buffer( mapper, |
---|
1412 | to_buffer, |
---|
1413 | is_user, |
---|
1414 | file_offset, |
---|
1415 | buffer, |
---|
1416 | size ); |
---|
1417 | |
---|
1418 | // set output argument to client RPC descriptor |
---|
1419 | hal_remote_swd( XPTR( client_cxy , &desc->args[6] ) , (uint64_t)error ); |
---|
1420 | |
---|
1421 | rpc_dmsg("\n[INFO] %s : completed at cycle %d\n", __FUNCTION__ , hal_time_stamp() ); |
---|
1422 | } |
---|
1423 | |
---|
1424 | /***************************************************************************************/ |
---|
1425 | /************ Generic functions supporting RPCs : client side **************************/ |
---|
1426 | /***************************************************************************************/ |
---|
1427 | |
---|
1428 | //////////////////////////////////////////// |
---|
1429 | void rpc_send_sync( cxy_t server_cxy, |
---|
1430 | rpc_desc_t * rpc ) |
---|
1431 | { |
---|
1432 | uint32_t cores; |
---|
1433 | error_t error; |
---|
1434 | bool_t first; |
---|
1435 | reg_t sr_save; |
---|
1436 | |
---|
1437 | thread_t * this = CURRENT_THREAD; |
---|
1438 | |
---|
1439 | rpc_dmsg("\n[INFO] %s : enter / client_cxy = %x / server_cxy = %x / cycle %d\n", |
---|
1440 | __FUNCTION__ , local_cxy , server_cxy , hal_time_stamp() ); |
---|
1441 | |
---|
1442 | // allocate and initialise an extended pointer on the RPC descriptor |
---|
1443 | xptr_t desc_xp = XPTR( local_cxy , rpc ); |
---|
1444 | |
---|
1445 | // get local pointer on rpc_fifo in remote cluster, with the |
---|
1446 | // assumption that rpc_fifo pddresses are identical in all clusters |
---|
1447 | rpc_fifo_t * rf = &LOCAL_CLUSTER->rpc_fifo; |
---|
1448 | |
---|
1449 | // try to post an item in remote fifo |
---|
1450 | // deschedule and retry if remote fifo full |
---|
1451 | do |
---|
1452 | { |
---|
1453 | error = remote_fifo_put_item( XPTR( server_cxy , &rf->fifo ), |
---|
1454 | (uint64_t )desc_xp, |
---|
1455 | &first ); |
---|
1456 | |
---|
1457 | if ( error ) |
---|
1458 | { |
---|
1459 | printk("\n[WARNING] %s : cluster %x cannot post RPC to cluster %x\n", |
---|
1460 | __FUNCTION__ , local_cxy , server_cxy ); |
---|
1461 | |
---|
1462 | if( thread_can_yield() ) sched_yield( NULL ); |
---|
1463 | } |
---|
1464 | } |
---|
1465 | while( error ); |
---|
1466 | |
---|
1467 | rpc_dmsg("\n[INFO] %s : RPC %l registered / server_cxy = %x / cycle %d\n", |
---|
1468 | __FUNCTION__ , desc_xp , server_cxy , hal_time_stamp() ); |
---|
1469 | |
---|
1470 | // send IPI to remote CP0, if this is the first RPC in remote FIFO, |
---|
1471 | // and there is no CPU is in kernel mode in server cluster. |
---|
1472 | if( first ) |
---|
1473 | { |
---|
1474 | // get number of cores in kernel mode in server cluster |
---|
1475 | cores = hal_remote_lw( XPTR( server_cxy , &LOCAL_CLUSTER->cores_in_kernel ) ); |
---|
1476 | |
---|
1477 | if( cores == 0 ) // no core in kernel mode in server |
---|
1478 | { |
---|
1479 | dev_pic_send_ipi( server_cxy , 0 ); |
---|
1480 | |
---|
1481 | rpc_dmsg("\n[INFO] %s : IPI sent / client_cxy = %x / server_cxy = %x\n", |
---|
1482 | __FUNCTION__, local_cxy , server_cxy ); |
---|
1483 | } |
---|
1484 | } |
---|
1485 | |
---|
1486 | // enable IRQs to allow incoming RPC and avoid deadlock |
---|
1487 | if( this->type == THREAD_RPC ) hal_enable_irq( &sr_save ); |
---|
1488 | |
---|
1489 | // the server thread poll the response slot until RPC completed |
---|
1490 | // TODO this could be replaced by a descheduling policy... [AG] |
---|
1491 | while( 1 ) |
---|
1492 | { |
---|
1493 | if( rpc->response == 0 ) break; |
---|
1494 | } |
---|
1495 | |
---|
1496 | // restore IRQs |
---|
1497 | if( this->type == THREAD_RPC ) hal_restore_irq( sr_save ); |
---|
1498 | |
---|
1499 | rpc_dmsg("\n[INFO] %s : completed / client_cxy = %x / server_cxy = %x / cycle %d\n", |
---|
1500 | __FUNCTION__ , local_cxy , server_cxy , hal_time_stamp() ); |
---|
1501 | |
---|
1502 | } // end rpc_send_sync() |
---|
1503 | |
---|
1504 | |
---|
1505 | |
---|
1506 | /***************************************************************************************/ |
---|
1507 | /************ Generic functions supporting RPCs : server side **************************/ |
---|
1508 | /***************************************************************************************/ |
---|
1509 | |
---|
1510 | /////////////////////////////////////////// |
---|
1511 | void rpc_fifo_init( rpc_fifo_t * rpc_fifo ) |
---|
1512 | { |
---|
1513 | rpc_fifo->count = 0; |
---|
1514 | rpc_fifo->owner = 0; |
---|
1515 | local_fifo_init( &rpc_fifo->fifo ); |
---|
1516 | } |
---|
1517 | |
---|
1518 | ///////////////////////////////////////////// |
---|
1519 | void rpc_execute_all( rpc_fifo_t * rpc_fifo ) |
---|
1520 | { |
---|
1521 | xptr_t xp; // extended pointer on RPC descriptor |
---|
1522 | uint32_t count; // handled RPC request counter |
---|
1523 | thread_t * this; // pointer on this RPC thread |
---|
1524 | core_t * core; // pointer on core running this thread |
---|
1525 | rpc_desc_t * desc; // pointer on RPC descriptor |
---|
1526 | uint32_t index; // RPC index |
---|
1527 | cxy_t client_cxy; // client cluster identifier |
---|
1528 | error_t error; |
---|
1529 | |
---|
1530 | this = CURRENT_THREAD; |
---|
1531 | core = this->core; |
---|
1532 | count = 0; |
---|
1533 | |
---|
1534 | rpc_dmsg("\n[INFO] %s : enter / thread %x on core[%x,%d] / fifo = %x / cycle %d\n", |
---|
1535 | __FUNCTION__, this->trdid, local_cxy, core->lid , hal_time_stamp() ); |
---|
1536 | |
---|
1537 | // handle up to CONFIG_RPC_PENDING_MAX requests before exit |
---|
1538 | do |
---|
1539 | { |
---|
1540 | error = local_fifo_get_item( &rpc_fifo->fifo, (uint64_t *)&xp ); |
---|
1541 | |
---|
1542 | if ( error == 0 ) // One RPC request successfully extracted from RPC_FIFO |
---|
1543 | { |
---|
1544 | // get client cluster identifier and pointer on RPC descriptor |
---|
1545 | client_cxy = (cxy_t)GET_CXY( xp ); |
---|
1546 | desc = (rpc_desc_t *)GET_PTR( xp ); |
---|
1547 | |
---|
1548 | // get rpc index from RPC descriptor |
---|
1549 | index = hal_remote_lw( XPTR( client_cxy , &desc->index ) ); |
---|
1550 | |
---|
1551 | rpc_dmsg("\n[INFO] %s : thread %x on core [%x,%d] / index = %d / &rpc = %x\n", |
---|
1552 | __FUNCTION__ , this->trdid , core->lid , local_cxy , index , rpc_server[index] ); |
---|
1553 | |
---|
1554 | // call the relevant server function |
---|
1555 | rpc_server[index]( xp ); |
---|
1556 | |
---|
1557 | // increment handled RPC counter |
---|
1558 | count++; |
---|
1559 | |
---|
1560 | // notify RPC completion as required |
---|
1561 | hal_remote_atomic_add( XPTR(client_cxy,&desc->response) , -1 ); |
---|
1562 | } |
---|
1563 | |
---|
1564 | // exit loop in three cases: |
---|
1565 | // - fifo is empty |
---|
1566 | // - look has been released (because descheduling) |
---|
1567 | // - max number of RPCs has been reached |
---|
1568 | if( error || |
---|
1569 | (rpc_fifo->owner != this->trdid) || |
---|
1570 | (count > CONFIG_RPC_PENDING_MAX) ) break; |
---|
1571 | } |
---|
1572 | while( 1 ); |
---|
1573 | |
---|
1574 | // update RPC_FIFO global counter |
---|
1575 | rpc_fifo->count += count; |
---|
1576 | |
---|
1577 | } // end rpc_execute_all() |
---|
1578 | |
---|
1579 | //////////////////////////////////////////////////// |
---|
1580 | error_t rpc_activate_thread( rpc_fifo_t * rpc_fifo ) |
---|
1581 | { |
---|
1582 | core_t * core; |
---|
1583 | thread_t * thread; |
---|
1584 | thread_t * this; |
---|
1585 | scheduler_t * sched; |
---|
1586 | error_t error; |
---|
1587 | bool_t found; |
---|
1588 | reg_t sr_save; |
---|
1589 | |
---|
1590 | |
---|
1591 | this = CURRENT_THREAD; |
---|
1592 | core = this->core; |
---|
1593 | sched = &core->scheduler; |
---|
1594 | found = false; |
---|
1595 | |
---|
1596 | assert( (this->trdid == rpc_fifo->owner) , __FUNCTION__ , |
---|
1597 | "calling thread is not RPC_FIFO owner\n" ); |
---|
1598 | |
---|
1599 | // makes the calling thread not preemptable |
---|
1600 | // during activation / creation of the RPC thread |
---|
1601 | hal_disable_irq( &sr_save ); |
---|
1602 | |
---|
1603 | // search a free RPC thread (must be in THREAD_BLOCKED_IDLE state) |
---|
1604 | list_entry_t * iter; |
---|
1605 | LIST_FOREACH( &sched->k_root , iter ) |
---|
1606 | { |
---|
1607 | thread = LIST_ELEMENT( iter , thread_t , sched_list ); |
---|
1608 | if( (thread->type == THREAD_RPC) && (thread->blocked == THREAD_BLOCKED_IDLE ) ) |
---|
1609 | { |
---|
1610 | found = true; |
---|
1611 | break; |
---|
1612 | } |
---|
1613 | } |
---|
1614 | |
---|
1615 | if( found ) // activate this idle RPC thread |
---|
1616 | { |
---|
1617 | // unblock it |
---|
1618 | thread->blocked = 0; |
---|
1619 | |
---|
1620 | rpc_dmsg("\n[INFO] %s : activate RPC thread %x on core [%x,%d] / cycle %d\n", |
---|
1621 | __FUNCTION__ , thread , core->gid , local_cxy , hal_time_stamp() ); |
---|
1622 | } |
---|
1623 | else // create a new RPC thread |
---|
1624 | { |
---|
1625 | // create new thread |
---|
1626 | error = thread_kernel_create( &thread, |
---|
1627 | THREAD_RPC, |
---|
1628 | &rpc_thread_func, |
---|
1629 | NULL, |
---|
1630 | core->lid ); |
---|
1631 | if( error ) |
---|
1632 | { |
---|
1633 | hal_restore_irq( sr_save ); |
---|
1634 | printk("\n[ERROR] in %s : no memory for new RPC thread in cluster %x\n", |
---|
1635 | __FUNCTION__ , local_cxy ); |
---|
1636 | return ENOMEM; |
---|
1637 | } |
---|
1638 | |
---|
1639 | // unblock new thread |
---|
1640 | thread->blocked = 0; |
---|
1641 | |
---|
1642 | // update core descriptor counter |
---|
1643 | hal_atomic_add( &LOCAL_CLUSTER->rpc_threads , 1 ); |
---|
1644 | |
---|
1645 | rpc_dmsg("\n[INFO] %s : create RPC thread %x on core [%x,%d] / cycle %d\n", |
---|
1646 | __FUNCTION__ , thread->trdid, local_cxy, core->lid, hal_time_stamp() ); |
---|
1647 | } |
---|
1648 | |
---|
1649 | // update owner in rpc_fifo |
---|
1650 | rpc_fifo->owner = thread->trdid; |
---|
1651 | |
---|
1652 | // current thread switch to RPC thread |
---|
1653 | sched_yield( thread ); |
---|
1654 | |
---|
1655 | // restore IRQs for the calling thread |
---|
1656 | hal_restore_irq( sr_save ); |
---|
1657 | |
---|
1658 | // return success |
---|
1659 | return 0; |
---|
1660 | |
---|
1661 | } // end rpc_activate_thread() |
---|
1662 | |
---|
1663 | ////////////////// |
---|
1664 | bool_t rpc_check() |
---|
1665 | { |
---|
1666 | thread_t * this = CURRENT_THREAD; |
---|
1667 | rpc_fifo_t * rpc_fifo = &LOCAL_CLUSTER->rpc_fifo; |
---|
1668 | error_t error; |
---|
1669 | |
---|
1670 | rpc_dmsg("\n[INFO] %s : enter in cluster %x\n", |
---|
1671 | __FUNCTION__ , local_cxy ); |
---|
1672 | |
---|
1673 | // calling thread does nothing if light lock already taken or FIFO empty |
---|
1674 | if( (rpc_fifo->owner != 0) || (local_fifo_is_empty( &rpc_fifo->fifo )) ) |
---|
1675 | { |
---|
1676 | rpc_dmsg("\n[INFO] %s : exit but do nothing in cluster %x\n", |
---|
1677 | __FUNCTION__ , local_cxy ); |
---|
1678 | |
---|
1679 | return false; |
---|
1680 | } |
---|
1681 | |
---|
1682 | // try to take the light lock, and activates an RPC thread if success |
---|
1683 | if( hal_atomic_test_set( &rpc_fifo->owner , this->trdid ) ) |
---|
1684 | { |
---|
1685 | error = rpc_activate_thread( rpc_fifo ); |
---|
1686 | |
---|
1687 | if( error ) // cannot activate an RPC_THREAD |
---|
1688 | { |
---|
1689 | rpc_fifo->owner = 0; |
---|
1690 | |
---|
1691 | printk("\n[ERROR] in %s : no memory to create a RPC thread for core %d" |
---|
1692 | " in cluster %x => do nothing\n", |
---|
1693 | __FUNCTION__ , CURRENT_CORE->lid , local_cxy ); |
---|
1694 | } |
---|
1695 | |
---|
1696 | rpc_dmsg("\n[INFO] %s : exit after activating an RPC thread in cluster %x\n", |
---|
1697 | __FUNCTION__ , local_cxy ); |
---|
1698 | |
---|
1699 | return true; |
---|
1700 | } |
---|
1701 | else // light lock taken by another thread |
---|
1702 | { |
---|
1703 | rpc_dmsg("\n[INFO] %s : exit but do nothing in cluster %x\n", |
---|
1704 | __FUNCTION__ , local_cxy ); |
---|
1705 | |
---|
1706 | return false; |
---|
1707 | } |
---|
1708 | } // end rpc_check() |
---|
1709 | |
---|
1710 | |
---|
1711 | ////////////////////// |
---|
1712 | void rpc_thread_func() |
---|
1713 | { |
---|
1714 | // makes the RPC thread not preemptable |
---|
1715 | hal_disable_irq( NULL ); |
---|
1716 | |
---|
1717 | thread_t * this = CURRENT_THREAD; |
---|
1718 | rpc_fifo_t * rpc_fifo = &LOCAL_CLUSTER->rpc_fifo; |
---|
1719 | |
---|
1720 | rpc_dmsg("\n[INFO] %s : enter / thread %x on core[%x,%d] / cycle %d\n", |
---|
1721 | __FUNCTION__, this->trdid, local_cxy, this->core->lid, hal_time_stamp() ); |
---|
1722 | |
---|
1723 | // this infinite loop is not preemptable |
---|
1724 | // the RPC thread deschedule only when the RPC_FIFO is empty |
---|
1725 | while(1) |
---|
1726 | { |
---|
1727 | // check fifo ownership (ownership should be given by rpc_activate() |
---|
1728 | if( this->trdid != rpc_fifo->owner ) |
---|
1729 | { |
---|
1730 | printk("\n[PANIC] in %s : thread %x on core[%x,%d] not owner of RPC_FIFO\n", |
---|
1731 | __FUNCTION__, this->trdid, local_cxy, this->core->lid ); |
---|
1732 | hal_core_sleep(); |
---|
1733 | } |
---|
1734 | |
---|
1735 | // executes pending RPC(s) |
---|
1736 | rpc_execute_all( rpc_fifo ); |
---|
1737 | |
---|
1738 | // release rpc_fifo ownership (can be lost during RPC execution) |
---|
1739 | if( rpc_fifo->owner == this->trdid ) rpc_fifo->owner = 0; |
---|
1740 | |
---|
1741 | |
---|
1742 | // block and deschedule or sucide |
---|
1743 | if( LOCAL_CLUSTER->rpc_threads >= CONFIG_RPC_THREADS_MAX ) |
---|
1744 | { |
---|
1745 | rpc_dmsg("\n[INFO] thread %x on core[%x,%d] suicide / cycle %d\n", |
---|
1746 | __FUNCTION__, this->trdid, local_cxy, this->core->lid, hal_time_stamp() ); |
---|
1747 | |
---|
1748 | // update core descriptor counter |
---|
1749 | hal_atomic_add( &LOCAL_CLUSTER->rpc_threads , -1 ); |
---|
1750 | |
---|
1751 | // suicide |
---|
1752 | thread_exit(); |
---|
1753 | } |
---|
1754 | else |
---|
1755 | { |
---|
1756 | rpc_dmsg("\n[INFO] %s : thread %x on core[%x,%d] blocks / cycle %d\n", |
---|
1757 | __FUNCTION__, this->trdid, local_cxy, this->core->lid, hal_time_stamp() ); |
---|
1758 | |
---|
1759 | thread_block( this , THREAD_BLOCKED_IDLE ); |
---|
1760 | sched_yield( NULL ); |
---|
1761 | |
---|
1762 | rpc_dmsg("\n[INFO] RPC thread %x wake up on core[%x,%d] / cycle %d\n", |
---|
1763 | __FUNCTION__, this->trdid, local_cxy, this->core->lid, hal_time_stamp() ); |
---|
1764 | } |
---|
1765 | } // end while |
---|
1766 | } // end rpc_thread_func() |
---|
1767 | |
---|