[657] | 1 | /* |
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[683] | 2 | * ksocket.c - kernel socket implementation. |
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[657] | 3 | * |
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[683] | 4 | * Authors Alain Greiner (2016,2017,2018,2019,2020) |
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[662] | 5 | * |
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[657] | 6 | * Copyright (c) UPMC Sorbonne Universites |
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| 7 | * |
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[662] | 8 | * This file is part of ALMOS-MKH. |
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[657] | 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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[662] | 20 | * along with ALMOS-MKH.; if not, write to the Free Software Foundation, |
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[657] | 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_kernel_types.h> |
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[662] | 26 | #include <hal_remote.h> |
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| 27 | #include <hal_uspace.h> |
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| 28 | #include <shared_socket.h> |
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| 29 | #include <process.h> |
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[657] | 30 | #include <remote_buf.h> |
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[662] | 31 | #include <bits.h> |
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| 32 | #include <printk.h> |
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| 33 | #include <kmem.h> |
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| 34 | #include <thread.h> |
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| 35 | #include <vfs.h> |
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[669] | 36 | #include <alarm.h> |
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| 37 | #include <dev_nic.h> |
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[662] | 38 | #include <ksocket.h> |
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[657] | 39 | |
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[662] | 40 | ////////////////////////////////////////////////////////////////////////////////////// |
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| 41 | // Extern global variables |
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| 42 | ////////////////////////////////////////////////////////////////////////////////////// |
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[657] | 43 | |
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[662] | 44 | extern chdev_directory_t chdev_dir; // allocated in kernel_init.c |
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| 45 | |
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| 46 | /////////////////////////////////////////// |
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| 47 | char * socket_domain_str( uint32_t domain ) |
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[657] | 48 | { |
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[662] | 49 | switch( domain ) |
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| 50 | { |
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| 51 | case AF_INET : return "INET"; |
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| 52 | case AF_LOCAL : return "LOCAL"; |
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| 53 | |
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| 54 | default : return "undefined"; |
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| 55 | } |
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[657] | 56 | } |
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[662] | 57 | |
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| 58 | /////////////////////////////////////// |
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| 59 | char * socket_type_str( uint32_t type ) |
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| 60 | { |
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| 61 | switch( type ) |
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| 62 | { |
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| 63 | case SOCK_DGRAM : return "UDP"; |
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| 64 | case SOCK_STREAM : return "TCP"; |
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[657] | 65 | |
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[662] | 66 | default : return "undefined"; |
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| 67 | } |
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| 68 | } |
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| 69 | |
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| 70 | ///////////////////////////////////////// |
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| 71 | char * socket_state_str( uint32_t state ) |
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| 72 | { |
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| 73 | switch( state ) |
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| 74 | { |
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| 75 | case UDP_STATE_UNBOUND : return "UDP_UNBOUND"; |
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| 76 | case UDP_STATE_BOUND : return "UDP_BOUND"; |
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| 77 | case UDP_STATE_ESTAB : return "UDP_ESTAB"; |
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[657] | 78 | |
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[662] | 79 | case TCP_STATE_UNBOUND : return "TCP_UNBOUND"; |
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| 80 | case TCP_STATE_BOUND : return "TCP_BOUND"; |
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| 81 | case TCP_STATE_LISTEN : return "TCP_LISTEN"; |
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| 82 | case TCP_STATE_SYN_SENT : return "TCP_SYN_SENT"; |
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| 83 | case TCP_STATE_SYN_RCVD : return "TCP_SYN_RCVD"; |
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| 84 | case TCP_STATE_ESTAB : return "TCP_ESTAB"; |
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| 85 | case TCP_STATE_FIN_WAIT1 : return "TCP_FIN_WAIT1"; |
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| 86 | case TCP_STATE_FIN_WAIT2 : return "TCP_FIN_WAIT2"; |
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| 87 | case TCP_STATE_CLOSING : return "TCP_CLOSING"; |
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| 88 | case TCP_STATE_TIME_WAIT : return "TCP_TIME_WAIT"; |
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| 89 | case TCP_STATE_CLOSE_WAIT : return "TCP_CLOSE_WAIT"; |
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| 90 | case TCP_STATE_LAST_ACK : return "TCP_LAST_ACK"; |
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| 91 | case TCP_STATE_CLOSED : return "TCP_CLOSED"; |
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| 92 | |
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| 93 | default : return "undefined"; |
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| 94 | } |
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[657] | 95 | } |
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| 96 | |
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[662] | 97 | /////////////////////////////////////////// |
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| 98 | char * socket_cmd_type_str( uint32_t type ) |
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[657] | 99 | { |
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[662] | 100 | switch( type ) |
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| 101 | { |
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| 102 | case CMD_TX_CONNECT : return "TX_CONNECT"; |
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| 103 | case CMD_TX_ACCEPT : return "TX_ACCEPT"; |
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| 104 | case CMD_TX_CLOSE : return "TX_CLOSE"; |
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| 105 | case CMD_TX_SEND : return "TX_SEND"; |
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| 106 | |
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| 107 | case CMD_RX_ACCEPT : return "RX_ACCEPT"; |
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| 108 | case CMD_RX_RECV : return "RX_RECV"; |
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| 109 | |
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| 110 | default : return "undefined"; |
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| 111 | } |
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[657] | 112 | } |
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[662] | 113 | |
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| 114 | /////////////////////////////////////////// |
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| 115 | char * socket_cmd_sts_str( uint32_t sts ) |
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| 116 | { |
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| 117 | switch( sts ) |
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| 118 | { |
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[683] | 119 | case CMD_STS_SUCCESS : return "SUCCESS"; |
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[662] | 120 | case CMD_STS_EOF : return "EOF"; |
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| 121 | case CMD_STS_RST : return "RST"; |
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| 122 | case CMD_STS_BADACK : return "BADACK"; |
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| 123 | case CMD_STS_BADSTATE : return "BADSTATE"; |
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| 124 | case CMD_STS_BADCMD : return "BADCMD"; |
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| 125 | |
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| 126 | default : return "undefined"; |
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| 127 | } |
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| 128 | } |
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[657] | 129 | |
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[669] | 130 | /////////////////////////////////////////////////////////////////////////////////////////// |
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| 131 | // This static function implements the alarm handler used by a TX client thread to |
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| 132 | // handle a retransmission timeout for a TX command (ACCEPT / CONNECT / CLOSE / SEND). |
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| 133 | // The <args_xp> argument is actually an extended pointer on the involved socket. |
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| 134 | // First, it updates the retransmission timeout. Then, it get the type of TX command, |
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| 135 | // and request the NIC_TX server thread to re-send the unacknowledged segment. |
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| 136 | /////////////////////////////////////////////////////////////////////////////////////////// |
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[683] | 137 | // @ sock_xp : extended pointer on the involved socket. |
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[669] | 138 | /////////////////////////////////////////////////////////////////////////////////////////// |
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[683] | 139 | static void __attribute__((noinline)) socket_alarm_handler( xptr_t sock_xp ) |
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[669] | 140 | { |
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| 141 | // get cluster and local pointer on socket descriptor |
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[683] | 142 | socket_t * sock_ptr = GET_PTR( sock_xp ); |
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| 143 | cxy_t sock_cxy = GET_CXY( sock_xp ); |
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[669] | 144 | |
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[683] | 145 | #if DEBUG_SOCKET_ALARM |
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| 146 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 147 | #endif |
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| 148 | |
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| 149 | // build extended pointer on lock protecting socket |
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| 150 | xptr_t socket_lock_xp = XPTR( sock_cxy , &sock_ptr->lock ); |
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| 151 | |
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| 152 | // take the socket lock |
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| 153 | remote_queuelock_acquire( socket_lock_xp ); |
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| 154 | |
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[669] | 155 | // get relevant infos from socket descriptor |
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| 156 | uint32_t tx_cmd = hal_remote_l32( XPTR( sock_cxy , &sock_ptr->tx_cmd )); |
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| 157 | uint32_t channel = hal_remote_l32( XPTR( sock_cxy , &sock_ptr->nic_channel )); |
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| 158 | xptr_t thread_xp = hal_remote_l64( XPTR( sock_cxy , &sock_ptr->tx_client )); |
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| 159 | |
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| 160 | assert( __FUNCTION__, (thread_xp != XPTR_NULL), |
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| 161 | "illegal tx_client field for a retransmission timeout" ); |
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| 162 | |
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[683] | 163 | // get TX client thread cluster |
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[669] | 164 | cxy_t thread_cxy = GET_CXY( thread_xp ); |
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| 165 | |
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| 166 | assert( __FUNCTION__, (thread_cxy == local_cxy), |
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| 167 | "the client thread must be running in the same cluster as the alarm handler" ); |
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| 168 | |
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| 169 | // get pointers on NIC_TX[index] chdev |
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| 170 | xptr_t tx_chdev_xp = chdev_dir.nic_tx[channel]; |
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| 171 | chdev_t * tx_chdev_ptr = GET_PTR( tx_chdev_xp ); |
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| 172 | cxy_t tx_chdev_cxy = GET_CXY( tx_chdev_xp ); |
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| 173 | |
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| 174 | // get pointers on NIC_TX[channel] server thread |
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| 175 | thread_t * tx_server_ptr = hal_remote_lpt( XPTR( tx_chdev_cxy , &tx_chdev_ptr->server )); |
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| 176 | xptr_t tx_server_xp = XPTR( tx_chdev_cxy , tx_server_ptr ); |
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| 177 | |
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| 178 | // update the date in alarm |
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[683] | 179 | alarm_update( thread_xp , hal_get_cycles() + CONFIG_SOCK_RETRY_TIMEOUT ); |
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[669] | 180 | |
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| 181 | ////////////////////////////// |
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| 182 | if( tx_cmd == CMD_TX_CONNECT ) |
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| 183 | { |
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| 184 | |
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| 185 | #if DEBUG_SOCKET_ALARM |
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[683] | 186 | if( DEBUG_SOCKET_ALARM < cycle ) |
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| 187 | printk("\n[%s] rings for CONNECT : request a new SYN segment / cycle %d\n", |
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[669] | 188 | __FUNCTION__ , cycle ); |
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| 189 | #endif |
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| 190 | // set tx_valid to request the NIC_TX server to send a new SYN segment |
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| 191 | hal_remote_s32( XPTR( sock_cxy , &sock_ptr->tx_valid ) , true ); |
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| 192 | |
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| 193 | // update socket state |
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| 194 | hal_remote_s32( XPTR( sock_cxy , &sock_ptr->state ) , TCP_STATE_BOUND ); |
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| 195 | |
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| 196 | // unblock the NIC_TX server thread |
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| 197 | thread_unblock( tx_server_xp , THREAD_BLOCKED_CLIENT ); |
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| 198 | } |
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| 199 | ///////////////////////////// |
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| 200 | if( tx_cmd == CMD_TX_ACCEPT ) |
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| 201 | { |
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| 202 | |
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| 203 | #if DEBUG_SOCKET_ALARM |
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[683] | 204 | if( DEBUG_SOCKET_ALARM < cycle ) |
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| 205 | printk("\n[%s] rings for ACCEPT : request a new SYN-ACK segment / cycle %d\n", |
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[669] | 206 | __FUNCTION__ , cycle ); |
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| 207 | #endif |
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| 208 | // set tx_valid to request the NIC_TX server to send a new SYN-ACK segment |
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| 209 | hal_remote_s32( XPTR( sock_cxy , &sock_ptr->tx_valid ) , true ); |
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| 210 | |
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| 211 | // update socket state |
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| 212 | hal_remote_s32( XPTR( sock_cxy , &sock_ptr->state ) , TCP_STATE_SYN_RCVD ); |
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| 213 | |
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| 214 | // unblock the NIC_TX server thread |
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| 215 | thread_unblock( tx_server_xp , THREAD_BLOCKED_CLIENT ); |
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| 216 | } |
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| 217 | //////////////////////////// |
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| 218 | if( tx_cmd == CMD_TX_CLOSE ) |
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| 219 | { |
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| 220 | |
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| 221 | #if DEBUG_SOCKET_ALARM |
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[683] | 222 | if( DEBUG_SOCKET_ALARM < cycle ) |
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| 223 | printk("\n[%s] rings for CLOSE : request a new FIN-ACK segment / cycle %d\n", |
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[669] | 224 | __FUNCTION__ , cycle ); |
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| 225 | #endif |
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| 226 | // set tx_valid to request the NIC_TX server to send a new FIN-ACK segment |
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| 227 | hal_remote_s32( XPTR( sock_cxy , &sock_ptr->tx_valid ) , true ); |
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| 228 | |
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| 229 | // update socket state |
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| 230 | hal_remote_s32( XPTR( sock_cxy , &sock_ptr->state ) , TCP_STATE_ESTAB ); |
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| 231 | |
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| 232 | // unblock the NIC_TX server thread |
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| 233 | thread_unblock( tx_server_xp , THREAD_BLOCKED_CLIENT ); |
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| 234 | } |
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| 235 | /////////////////////////// |
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| 236 | if( tx_cmd == CMD_TX_SEND ) |
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| 237 | { |
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[683] | 238 | // get get relevant infos from socket pointer |
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| 239 | uint32_t tx_una = hal_remote_l32( XPTR( sock_cxy , &sock_ptr->tx_una )); |
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| 240 | uint32_t tx_ack = hal_remote_l32( XPTR( sock_cxy , &sock_ptr->tx_ack )); |
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| 241 | uint32_t tx_len = hal_remote_l32( XPTR( sock_cxy , &sock_ptr->tx_len )); |
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[669] | 242 | |
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[683] | 243 | #if DEBUG_SOCKET_ALARM |
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| 244 | if( DEBUG_SOCKET_ALARM < cycle ) |
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| 245 | printk("\n[%s] rings for SEND : request %d bytes / cycle %d\n", |
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| 246 | __FUNCTION__ , tx_len , cycle ); |
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| 247 | #endif |
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| 248 | // update command fields in socket |
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| 249 | hal_remote_s32( XPTR( sock_cxy , &sock_ptr->tx_nxt ) , tx_una ); |
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| 250 | hal_remote_s32( XPTR( sock_cxy , &sock_ptr->tx_todo ) , tx_len - tx_ack ); |
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| 251 | hal_remote_s32( XPTR( sock_cxy , &sock_ptr->tx_valid ) , true ); |
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[669] | 252 | |
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[683] | 253 | // unblock the NIC_TX server thread |
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| 254 | thread_unblock( tx_server_xp , THREAD_BLOCKED_CLIENT ); |
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| 255 | } |
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[669] | 256 | |
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[683] | 257 | // release the socket lock |
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| 258 | remote_queuelock_release( socket_lock_xp ); |
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[669] | 259 | |
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[683] | 260 | } // end socket_alarm_handler() |
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[669] | 261 | |
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[662] | 262 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 263 | // This static function registers the socket defined by the <socket_xp> argument into |
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| 264 | // the lists of sockets attached to the relevant NIC_TX and NIC_TX chdevs identified |
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| 265 | // by the <channel> argument, and update the channel field in socket descriptor. |
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| 266 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 267 | // @ socket_xp : [in] extended pointer on socket descriptor. |
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| 268 | // @ channel : [in] NIC channel index. |
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| 269 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 270 | static void socket_link_to_servers( xptr_t socket_xp, |
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| 271 | uint32_t channel ) |
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[657] | 272 | { |
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[662] | 273 | cxy_t socket_cxy = GET_CXY( socket_xp ); |
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| 274 | socket_t * socket_ptr = GET_PTR( socket_xp ); |
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[657] | 275 | |
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[662] | 276 | #if DEBUG_SOCKET_LINK |
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| 277 | thread_t * this = CURRENT_THREAD; |
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| 278 | process_t * process = this->process; |
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| 279 | pid_t socket_pid = hal_remote_l32( XPTR( socket_cxy , &socket_ptr->pid )); |
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| 280 | fdid_t socket_fdid = hal_remote_l32( XPTR( socket_cxy , &socket_ptr->pid )); |
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| 281 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 282 | if( DEBUG_SOCKET_LINK < cycle ) |
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| 283 | printk("\n[%s] thread[%x,%x] enter for socket[%x,%d] / cycle %d\n", |
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| 284 | __FUNCTION__, process->pid, this->trdid, socket_pid, socket_fdid, cycle ); |
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| 285 | #endif |
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[657] | 286 | |
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[662] | 287 | // get pointers on NIC_TX[channel] chdev |
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| 288 | xptr_t tx_chdev_xp = chdev_dir.nic_tx[channel]; |
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| 289 | chdev_t * tx_chdev_ptr = GET_PTR( tx_chdev_xp ); |
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| 290 | cxy_t tx_chdev_cxy = GET_CXY( tx_chdev_xp ); |
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[657] | 291 | |
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[662] | 292 | // build various TX extended pointers |
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| 293 | xptr_t tx_root_xp = XPTR( tx_chdev_cxy , &tx_chdev_ptr->wait_root ); |
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| 294 | xptr_t tx_lock_xp = XPTR( tx_chdev_cxy , &tx_chdev_ptr->wait_lock ); |
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| 295 | xptr_t tx_list_xp = XPTR( socket_cxy , &socket_ptr->tx_list ); |
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[657] | 296 | |
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[662] | 297 | // get pointers on NIC_RX[channel] chdev |
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| 298 | xptr_t rx_chdev_xp = chdev_dir.nic_rx[channel]; |
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| 299 | chdev_t * rx_chdev_ptr = GET_PTR( rx_chdev_xp ); |
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| 300 | cxy_t rx_chdev_cxy = GET_CXY( rx_chdev_xp ); |
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[657] | 301 | |
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[662] | 302 | // build various RX extended pointers |
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| 303 | xptr_t rx_root_xp = XPTR( rx_chdev_cxy , &rx_chdev_ptr->wait_root ); |
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| 304 | xptr_t rx_lock_xp = XPTR( rx_chdev_cxy , &rx_chdev_ptr->wait_lock ); |
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| 305 | xptr_t rx_list_xp = XPTR( socket_cxy , &socket_ptr->rx_list ); |
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[657] | 306 | |
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[662] | 307 | // register socket in the NIC_TX[channel] chdev clients queue |
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| 308 | remote_busylock_acquire( tx_lock_xp ); |
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| 309 | xlist_add_last( tx_root_xp , tx_list_xp ); |
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| 310 | remote_busylock_release( tx_lock_xp ); |
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| 311 | |
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| 312 | // register socket in the NIC_RX[channel] chdev clients queue |
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| 313 | remote_busylock_acquire( rx_lock_xp ); |
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| 314 | xlist_add_last( rx_root_xp , rx_list_xp ); |
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| 315 | remote_busylock_release( rx_lock_xp ); |
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| 316 | |
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| 317 | #if DEBUG_SOCKET_LINK |
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| 318 | cycle = (uint32_t)hal_get_cycles(); |
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| 319 | if( DEBUG_SOCKET_LINK < cycle ) |
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| 320 | printk("\n[%s] thread[%x,%x] linked socket[%x,%d] to channel %d / cycle %d\n", |
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| 321 | __FUNCTION__, process->pid, this->trdid, process->pid, socket_pid, socket_fdid, channel, cycle ); |
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| 322 | #endif |
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| 323 | |
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| 324 | } // end socket_link_to_servers() |
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| 325 | |
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| 326 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 327 | // This function removes the socket defined by the <socket_xp> argument from the |
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| 328 | // lists of sockets attached to the relevant NIC_TX and NIC_TX chdevs. |
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| 329 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 330 | // @ socket_xp : [in] extended pointer on socket descriptor |
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| 331 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 332 | static void socket_unlink_from_servers( xptr_t socket_xp ) |
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| 333 | { |
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| 334 | cxy_t socket_cxy = GET_CXY( socket_xp ); |
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| 335 | socket_t * socket_ptr = GET_PTR( socket_xp ); |
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| 336 | |
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| 337 | #if DEBUG_SOCKET_LINK |
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| 338 | thread_t * this = CURRENT_THREAD; |
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| 339 | process_t * process = this->process; |
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| 340 | pid_t socket_pid = hal_remote_l32( XPTR( socket_cxy , &socket_ptr->pid )); |
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| 341 | fdid_t socket_fdid = hal_remote_l32( XPTR( socket_cxy , &socket_ptr->pid )); |
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| 342 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 343 | if( DEBUG_SOCKET_LINK < cycle ) |
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| 344 | printk("\n[%s] thread[%x,%x] enter for socket[%x,%d] / cycle %d\n", |
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| 345 | __FUNCTION__, process->pid, this->trdid, socket_pid, socket_fdid, cycle ); |
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| 346 | #endif |
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| 347 | |
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| 348 | // get NIC channel |
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| 349 | uint32_t channel = hal_remote_l32( XPTR( socket_cxy , &socket_ptr->nic_channel )); |
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| 350 | |
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| 351 | // get pointers on NIC_TX[channel] chdev |
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| 352 | xptr_t tx_chdev_xp = chdev_dir.nic_tx[channel]; |
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| 353 | chdev_t * tx_chdev_ptr = GET_PTR( tx_chdev_xp ); |
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| 354 | cxy_t tx_chdev_cxy = GET_CXY( tx_chdev_xp ); |
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| 355 | |
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| 356 | // build various TX extended pointers |
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[669] | 357 | xptr_t tx_lock_xp = XPTR( tx_chdev_cxy , &tx_chdev_ptr->wait_lock ); |
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| 358 | xptr_t tx_list_xp = XPTR( socket_cxy , &socket_ptr->tx_list ); |
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| 359 | xptr_t tx_list_next = hal_remote_l64( tx_list_xp ); |
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| 360 | xptr_t tx_list_pred = hal_remote_l64( tx_list_xp + sizeof(xptr_t) ); |
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[662] | 361 | |
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| 362 | // get pointers on NIC_RX[channel] chdev |
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| 363 | xptr_t rx_chdev_xp = chdev_dir.nic_rx[channel]; |
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| 364 | chdev_t * rx_chdev_ptr = GET_PTR( rx_chdev_xp ); |
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| 365 | cxy_t rx_chdev_cxy = GET_CXY( rx_chdev_xp ); |
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| 366 | |
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| 367 | // build various RX extended pointers |
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[669] | 368 | xptr_t rx_lock_xp = XPTR( rx_chdev_cxy , &rx_chdev_ptr->wait_lock ); |
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| 369 | xptr_t rx_list_xp = XPTR( socket_cxy , &socket_ptr->rx_list ); |
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| 370 | xptr_t rx_list_next = hal_remote_l64( rx_list_xp ); |
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| 371 | xptr_t rx_list_pred = hal_remote_l64( rx_list_xp + sizeof(xptr_t) ); |
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[662] | 372 | |
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[669] | 373 | // remove socket from the NIC_TX[channel] chdev clients queue if registered |
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| 374 | if( (tx_list_next != XPTR_NULL) || (tx_list_pred != XPTR_NULL) ) |
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| 375 | { |
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| 376 | remote_busylock_acquire( tx_lock_xp ); |
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| 377 | xlist_unlink( tx_list_xp ); |
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| 378 | remote_busylock_release( tx_lock_xp ); |
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| 379 | } |
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[662] | 380 | |
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[669] | 381 | // remove socket from the NIC_RX[channel] chdev clients queue if registered |
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| 382 | if( (rx_list_next != XPTR_NULL) || (rx_list_pred != XPTR_NULL) ) |
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| 383 | { |
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| 384 | remote_busylock_acquire( rx_lock_xp ); |
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| 385 | xlist_unlink( rx_list_xp ); |
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| 386 | remote_busylock_release( rx_lock_xp ); |
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| 387 | } |
---|
[662] | 388 | |
---|
| 389 | #if DEBUG_SOCKET_LINK |
---|
| 390 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 391 | if( DEBUG_SOCKET_LINK < cycle ) |
---|
| 392 | printk("\n[%s] thread[%x,%x] unlinked socket [%x,%d] / cycle %d\n", |
---|
| 393 | __FUNCTION__, process->pid, this->trdid, socket_pid, socket_fdid, cycle ); |
---|
| 394 | #endif |
---|
| 395 | |
---|
| 396 | } // end socket_unlink_from_servers() |
---|
| 397 | |
---|
| 398 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
[669] | 399 | // This function registers the socket defined by the <socket_xp> argument into the |
---|
| 400 | // list of listening sockets rooted in the nic_rx[0] chdev. |
---|
| 401 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 402 | // @ socket_xp : [in] extended pointer on socket descriptor |
---|
| 403 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 404 | static void socket_link_to_listen( xptr_t socket_xp ) |
---|
| 405 | { |
---|
| 406 | // get socket cluster and local pointer |
---|
| 407 | socket_t * socket_ptr = GET_PTR( socket_xp ); |
---|
| 408 | cxy_t socket_cxy = GET_CXY( socket_xp ); |
---|
| 409 | |
---|
| 410 | // get pointers on NIC_RX[0] chdev |
---|
| 411 | xptr_t rx0_chdev_xp = chdev_dir.nic_rx[0]; |
---|
| 412 | chdev_t * rx0_chdev_ptr = GET_PTR( rx0_chdev_xp ); |
---|
| 413 | cxy_t rx0_chdev_cxy = GET_CXY( rx0_chdev_xp ); |
---|
| 414 | |
---|
| 415 | // build extended pointers on list of listening sockets |
---|
| 416 | xptr_t rx0_root_xp = XPTR( rx0_chdev_cxy , &rx0_chdev_ptr->ext.nic.root ); |
---|
| 417 | xptr_t rx0_lock_xp = XPTR( rx0_chdev_cxy , &rx0_chdev_ptr->ext.nic.lock ); |
---|
| 418 | |
---|
| 419 | // build extended pointer on socket rx_list field |
---|
| 420 | xptr_t list_entry_xp = XPTR( socket_cxy , &socket_ptr->rx_list ); |
---|
| 421 | |
---|
| 422 | // register socket in listening sockets list |
---|
| 423 | remote_busylock_acquire( rx0_lock_xp ); |
---|
| 424 | xlist_add_last( rx0_root_xp , list_entry_xp ); |
---|
| 425 | remote_busylock_release( rx0_lock_xp ); |
---|
| 426 | |
---|
| 427 | } // end socket_link_to_listen() |
---|
| 428 | |
---|
| 429 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 430 | // This function removes the socket defined by the <socket_xp> argument from the |
---|
| 431 | // list of listening sockets rooted in the nic_rx[0] chdev. |
---|
| 432 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 433 | // @ socket_xp : [in] extended pointer on socket descriptor |
---|
| 434 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 435 | static void socket_unlink_from_listen( xptr_t socket_xp ) |
---|
| 436 | { |
---|
| 437 | // get socket cluster and local pointer |
---|
| 438 | socket_t * socket_ptr = GET_PTR( socket_xp ); |
---|
| 439 | cxy_t socket_cxy = GET_CXY( socket_xp ); |
---|
| 440 | |
---|
| 441 | // get pointers on NIC_RX[0] chdev |
---|
| 442 | xptr_t rx0_chdev_xp = chdev_dir.nic_rx[0]; |
---|
| 443 | chdev_t * rx0_chdev_ptr = GET_PTR( rx0_chdev_xp ); |
---|
| 444 | cxy_t rx0_chdev_cxy = GET_CXY( rx0_chdev_xp ); |
---|
| 445 | |
---|
| 446 | // build extended pointers on lock protecting list of listening sockets |
---|
| 447 | xptr_t rx0_lock_xp = XPTR( rx0_chdev_cxy , &rx0_chdev_ptr->ext.nic.lock ); |
---|
| 448 | |
---|
| 449 | // build extended pointer on socket rx_list field |
---|
| 450 | xptr_t list_entry_xp = XPTR( socket_cxy , &socket_ptr->rx_list ); |
---|
| 451 | |
---|
| 452 | // register socket in listening sockets list |
---|
| 453 | remote_busylock_acquire( rx0_lock_xp ); |
---|
| 454 | xlist_unlink( list_entry_xp ); |
---|
| 455 | remote_busylock_release( rx0_lock_xp ); |
---|
| 456 | |
---|
| 457 | } // end socket_unlink_from_listen() |
---|
| 458 | |
---|
| 459 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
[662] | 460 | // This static function is called by the socket_build() and socket_accept() functions. |
---|
| 461 | // It allocates memory in cluster defined by the <cxy> argument for all structures |
---|
| 462 | // associated to a socket: file descriptor, socket descriptor, RX buffer, R2T queue, |
---|
| 463 | // and CRQ queue. It allocates an fdid, and register it in the process fd_array. |
---|
[683] | 464 | // It initialise the socket desccriptor static fields, other than local_addr, |
---|
[662] | 465 | // local_port, remote_addr, remote_port), and set the socket state to UNBOUND. |
---|
| 466 | // It returns the local pointer on socket descriptor and the fdid value in buffers |
---|
| 467 | // defined by the <socket_ptr> & <fdid_ptr> arguments. |
---|
| 468 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 469 | // @ cxy : [in] target cluster fo socket & file descriptors. |
---|
| 470 | // @ domain : [in] socket domain. |
---|
| 471 | // @ type : [in] socket type. |
---|
| 472 | // @ socket_ptr : [out] local pointer on buffer for socket pointer. |
---|
| 473 | // @ fdid_ptr : [out] local pointer on buffer for fdid value. |
---|
| 474 | // # return 0 if success / return -1 if no memory. |
---|
| 475 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 476 | static error_t socket_create( cxy_t cxy, |
---|
| 477 | uint32_t domain, |
---|
| 478 | uint32_t type, |
---|
| 479 | socket_t ** socket_ptr, |
---|
| 480 | uint32_t * fdid_ptr ) |
---|
| 481 | { |
---|
[669] | 482 | uint32_t fdid; |
---|
[662] | 483 | socket_t * socket; |
---|
| 484 | vfs_file_t * file; |
---|
| 485 | uint32_t state; |
---|
[683] | 486 | void * tx_buf; |
---|
[662] | 487 | error_t error; |
---|
| 488 | |
---|
[683] | 489 | |
---|
[669] | 490 | thread_t * this = CURRENT_THREAD; |
---|
| 491 | process_t * process = this->process; |
---|
| 492 | |
---|
[683] | 493 | #if DEBUG_SOCKET_CREATE || DEBUG_SOCKET_ERROR |
---|
| 494 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 495 | #endif |
---|
| 496 | |
---|
[662] | 497 | #if DEBUG_SOCKET_CREATE |
---|
| 498 | if( DEBUG_SOCKET_CREATE < cycle ) |
---|
| 499 | printk("\n[%s] thread[%x,%x] enter / cycle %d\n", |
---|
| 500 | __FUNCTION__, process->pid, this->trdid, cycle ); |
---|
| 501 | #endif |
---|
| 502 | |
---|
[669] | 503 | // 1. allocate memory for socket descriptor |
---|
[683] | 504 | socket = kmem_remote_alloc( cxy , bits_log2(sizeof(socket_t)) , AF_ZERO ); |
---|
[662] | 505 | |
---|
| 506 | if( socket == NULL ) |
---|
| 507 | { |
---|
[683] | 508 | |
---|
| 509 | #if DEBUG_SOCKET_ERROR |
---|
| 510 | printk("\n[ERROR] in %s : cannot allocate socket descriptor / thread[%x,%x] / cycle %d\n", |
---|
| 511 | __FUNCTION__, process->pid, this->trdid, cycle ); |
---|
| 512 | #endif |
---|
[662] | 513 | return -1; |
---|
| 514 | } |
---|
| 515 | |
---|
[683] | 516 | // 2. allocate memory for rx_buf data buffer |
---|
[662] | 517 | error = remote_buf_init( XPTR( cxy , &socket->rx_buf ), |
---|
[683] | 518 | CONFIG_SOCK_RX_BUF_ORDER ); |
---|
[662] | 519 | |
---|
| 520 | if( error ) |
---|
| 521 | { |
---|
[683] | 522 | |
---|
| 523 | #if DEBUG_SOCKET_ERROR |
---|
| 524 | printk("\n[ERROR] in %s : no memory for rx_buf / thread[%x,%x] / cycle %d\n", |
---|
| 525 | __FUNCTION__, process->pid, this->trdid, cycle ); |
---|
| 526 | #endif |
---|
| 527 | kmem_remote_free( cxy , socket , bits_log2(sizeof(socket_t)) ); // 1 |
---|
[662] | 528 | return -1; |
---|
| 529 | } |
---|
| 530 | |
---|
[683] | 531 | // 3. allocate memory for tx_buf |
---|
| 532 | tx_buf = kmem_remote_alloc( cxy , CONFIG_SOCK_TX_BUF_ORDER , AF_NONE ); |
---|
| 533 | |
---|
| 534 | if( tx_buf == NULL ) |
---|
| 535 | { |
---|
| 536 | |
---|
| 537 | #if DEBUG_SOCKET_ERROR |
---|
| 538 | printk("\n[ERROR] in %s : no memory for tx_buf / thread[%x,%x] / cycle %d\n", |
---|
| 539 | __FUNCTION__, process->pid, this->trdid, cycle ); |
---|
| 540 | #endif |
---|
| 541 | remote_buf_release_data( XPTR( cxy , &socket->rx_buf ) ); // 2 |
---|
| 542 | kmem_remote_free( cxy , socket , bits_log2(sizeof(socket_t)) ); // 1 |
---|
| 543 | return -1; |
---|
| 544 | } |
---|
| 545 | |
---|
| 546 | // 4. allocate memory for r2tq queue |
---|
[662] | 547 | error = remote_buf_init( XPTR( cxy , &socket->r2tq ), |
---|
[669] | 548 | bits_log2( CONFIG_SOCK_R2T_BUF_SIZE ) ); |
---|
[662] | 549 | if( error ) |
---|
| 550 | { |
---|
[683] | 551 | |
---|
| 552 | #if DEBUG_SOCKET_ERROR |
---|
| 553 | printk("\n[ERROR] in %s : cannot allocate R2T queue / thread[%x,%x] / cycle %d\n", |
---|
| 554 | __FUNCTION__, process->pid, this->trdid, cycle ); |
---|
| 555 | #endif |
---|
| 556 | kmem_remote_free( cxy , tx_buf , CONFIG_SOCK_TX_BUF_ORDER ); // 3 |
---|
| 557 | remote_buf_release_data( XPTR( cxy , &socket->rx_buf ) ); // 2 |
---|
| 558 | kmem_remote_free( cxy , socket , bits_log2(sizeof(socket_t)) ); // 1 |
---|
[662] | 559 | return -1; |
---|
| 560 | } |
---|
| 561 | |
---|
[683] | 562 | // don't allocate memory for CRQ queue / done by the socket_listen function |
---|
[662] | 563 | |
---|
[683] | 564 | // 5. allocate memory for file descriptor |
---|
| 565 | file = kmem_remote_alloc( cxy , bits_log2(sizeof(vfs_file_t)) , AF_ZERO ); |
---|
[662] | 566 | |
---|
| 567 | if( file == NULL ) |
---|
| 568 | { |
---|
[683] | 569 | |
---|
| 570 | #if DEBUG_SOCKET_ERROR |
---|
| 571 | printk("\n[ERROR] in %s : cannot allocate file descriptor / thread[%x,%x] / cycle %d\n", |
---|
| 572 | __FUNCTION__, process->pid, this->trdid, cycle ); |
---|
| 573 | #endif |
---|
| 574 | remote_buf_release_data( XPTR( cxy , &socket->r2tq ) ); // 4 |
---|
| 575 | kmem_remote_free( cxy , tx_buf , CONFIG_SOCK_TX_BUF_ORDER ); // 3 |
---|
| 576 | remote_buf_release_data( XPTR( cxy , &socket->rx_buf ) ); // 2 |
---|
| 577 | kmem_remote_free( cxy , socket , bits_log2(sizeof(socket_t)) ); // 1 |
---|
[662] | 578 | return -1; |
---|
| 579 | } |
---|
| 580 | |
---|
[683] | 581 | // 6. get an fdid value, and register file descriptor in fd_array[] |
---|
[662] | 582 | error = process_fd_register( process->ref_xp, |
---|
| 583 | XPTR( cxy , file ), |
---|
| 584 | &fdid ); |
---|
| 585 | if ( error ) |
---|
| 586 | { |
---|
[683] | 587 | |
---|
| 588 | #if DEBUG_SOCKET_ERROR |
---|
| 589 | if( DEBUG_SOCKET_ERROR < cycle ) |
---|
| 590 | printk("\n[ERROR] in %s : cannot register file descriptor / thread[%x,%x] / cycle %d\n", |
---|
| 591 | __FUNCTION__, process->pid, this->trdid, cycle ); |
---|
| 592 | #endif |
---|
| 593 | kmem_remote_free( cxy , file , bits_log2(sizeof(vfs_file_t)) ); // 5 |
---|
| 594 | remote_buf_release_data( XPTR( cxy , &socket->r2tq ) ); // 4 |
---|
| 595 | kmem_remote_free( cxy , tx_buf , CONFIG_SOCK_TX_BUF_ORDER ); // 3 |
---|
| 596 | remote_buf_release_data( XPTR( cxy , &socket->rx_buf ) ); // 2 |
---|
| 597 | kmem_remote_free( cxy , socket , bits_log2(sizeof(socket_t)) ); // 1 |
---|
[662] | 598 | return -1; |
---|
| 599 | } |
---|
| 600 | |
---|
| 601 | state = (type == SOCK_STREAM) ? TCP_STATE_UNBOUND : UDP_STATE_UNBOUND; |
---|
| 602 | |
---|
| 603 | // initialise socket descriptor |
---|
| 604 | hal_remote_s32( XPTR( cxy , &socket->pid ) , process->pid ); |
---|
| 605 | hal_remote_s32( XPTR( cxy , &socket->fdid ) , fdid ); |
---|
| 606 | hal_remote_s32( XPTR( cxy , &socket->domain ) , domain ); |
---|
| 607 | hal_remote_s32( XPTR( cxy , &socket->type ) , type ); |
---|
| 608 | hal_remote_s32( XPTR( cxy , &socket->state ) , state ); |
---|
| 609 | hal_remote_s64( XPTR( cxy , &socket->tx_client ) , XPTR_NULL ); |
---|
| 610 | hal_remote_s64( XPTR( cxy , &socket->rx_client ) , XPTR_NULL ); |
---|
| 611 | hal_remote_s32( XPTR( cxy , &socket->tx_valid ) , false ); |
---|
| 612 | hal_remote_s32( XPTR( cxy , &socket->rx_valid ) , false ); |
---|
| 613 | hal_remote_s32( XPTR( cxy , &socket->nic_channel ) , 0 ); |
---|
[683] | 614 | hal_remote_spt( XPTR( cxy , &socket->tx_buf ) , tx_buf ); |
---|
[662] | 615 | |
---|
| 616 | // initialize file descriptor |
---|
[669] | 617 | hal_remote_s32( XPTR( cxy , &file->type ) , FILE_TYPE_SOCK ); |
---|
[662] | 618 | hal_remote_spt( XPTR( cxy , &file->socket ) , socket ); |
---|
| 619 | |
---|
| 620 | // initialize socket lock |
---|
| 621 | remote_queuelock_init( XPTR( cxy , &socket->lock ) , LOCK_SOCKET_STATE ); |
---|
| 622 | |
---|
| 623 | #if DEBUG_SOCKET_CREATE |
---|
[683] | 624 | cycle = (uint32_t)hal_get_cycles(); |
---|
[662] | 625 | if( DEBUG_SOCKET_CREATE < cycle ) |
---|
| 626 | printk("\n[%s] thread[%x,%x] exit / socket[%x,%d] / xptr[%x,%x] / cycle %d\n", |
---|
| 627 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cxy, socket, cycle ); |
---|
| 628 | #endif |
---|
| 629 | |
---|
| 630 | // return success |
---|
| 631 | *socket_ptr = socket; |
---|
| 632 | *fdid_ptr = fdid; |
---|
| 633 | |
---|
| 634 | return 0; |
---|
| 635 | |
---|
| 636 | } // end socket_create |
---|
| 637 | |
---|
| 638 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 639 | // This static function is called by the socket_close() function to destroy a socket |
---|
| 640 | // identified by the <file_xp> argument. |
---|
| 641 | // It remove the associated file from the reference process fd_array. It unlink the |
---|
| 642 | // socket from the NIC_TX [k] and NIC_RX[k] chdevs. It release all memory allocated |
---|
[669] | 643 | // for the structures associated to the target socket : file descriptor, socket |
---|
| 644 | // descriptor, RX buffer, R2T queue, CRQ queue. |
---|
[662] | 645 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 646 | // @ file_xp : extended pointer on the file descriptor. |
---|
| 647 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 648 | static void socket_destroy( xptr_t file_xp ) |
---|
| 649 | { |
---|
| 650 | thread_t * this = CURRENT_THREAD; |
---|
| 651 | process_t * process = this->process; |
---|
| 652 | |
---|
| 653 | // check file_xp argument |
---|
[669] | 654 | assert( __FUNCTION__, (file_xp != XPTR_NULL), "illegal argument\n" ); |
---|
[662] | 655 | |
---|
| 656 | // get cluster & local pointer for file descriptor |
---|
| 657 | vfs_file_t * file_ptr = GET_PTR( file_xp ); |
---|
| 658 | cxy_t file_cxy = GET_CXY( file_xp ); |
---|
| 659 | |
---|
| 660 | // get local pointer for socket and file type |
---|
| 661 | socket_t * socket_ptr = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
| 662 | uint32_t file_type = hal_remote_l32( XPTR( file_cxy , &file_ptr->type ) ); |
---|
| 663 | |
---|
| 664 | // check file descriptor type |
---|
[669] | 665 | assert( __FUNCTION__, (file_type == FILE_TYPE_SOCK), "illegal file type\n" ); |
---|
[662] | 666 | |
---|
[669] | 667 | // get socket nic_channel, state, pid and fdid |
---|
| 668 | uint32_t state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state )); |
---|
[662] | 669 | uint32_t fdid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->fdid )); |
---|
[669] | 670 | |
---|
| 671 | #if DEBUG_SOCKET_DESTROY |
---|
| 672 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 673 | pid_t pid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->pid )); |
---|
| 674 | if( DEBUG_SOCKET_DESTROY < cycle ) |
---|
| 675 | printk("\n[%s] thread[%x,%x] enter / file[%x,%x] / cycle %d\n", |
---|
| 676 | __FUNCTION__, process->pid, this->trdid, pid, fdid, cycle ); |
---|
| 677 | #endif |
---|
[662] | 678 | |
---|
[669] | 679 | // remove socket from NIC_TX & NIC_RX chdev queues |
---|
| 680 | // or from the listening sockets list |
---|
| 681 | if( state == TCP_STATE_LISTEN ) |
---|
[662] | 682 | { |
---|
[669] | 683 | socket_unlink_from_listen( XPTR( file_cxy , socket_ptr ) ); |
---|
| 684 | } |
---|
| 685 | else |
---|
| 686 | { |
---|
[662] | 687 | socket_unlink_from_servers( XPTR( file_cxy , socket_ptr ) ); |
---|
| 688 | } |
---|
| 689 | |
---|
| 690 | // remove the file descriptor from the fd_array |
---|
| 691 | process_fd_remove( process->owner_xp , fdid ); |
---|
| 692 | |
---|
| 693 | // release memory allocated for file descriptor |
---|
[683] | 694 | kmem_remote_free( file_cxy , file_ptr , bits_log2(sizeof(vfs_file_t)) ); |
---|
[662] | 695 | |
---|
| 696 | // release memory allocated for buffers attached to socket descriptor |
---|
[669] | 697 | remote_buf_release_data( XPTR( file_cxy , &socket_ptr->crqq ) ); |
---|
| 698 | remote_buf_release_data( XPTR( file_cxy , &socket_ptr->r2tq ) ); |
---|
| 699 | remote_buf_release_data( XPTR( file_cxy , &socket_ptr->rx_buf ) ); |
---|
[662] | 700 | |
---|
| 701 | // release memory allocated for socket descriptor |
---|
[683] | 702 | kmem_remote_free( file_cxy , socket_ptr , bits_log2(sizeof(socket_t)) ); |
---|
[662] | 703 | |
---|
| 704 | #if DEBUG_SOCKET_DESTROY |
---|
| 705 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 706 | if( DEBUG_SOCKET_DESTROY < cycle ) |
---|
| 707 | printk("\n[%s] thread[%x,%x] exit / cycle %d\n", |
---|
| 708 | __FUNCTION__, process->pid, this->trdid, cycle ); |
---|
| 709 | #endif |
---|
| 710 | |
---|
| 711 | } // end socket_destroy() |
---|
| 712 | |
---|
| 713 | //////////////////////////////////////////////// |
---|
| 714 | void socket_put_r2t_request( xptr_t queue_xp, |
---|
[683] | 715 | uint8_t flags, |
---|
[662] | 716 | uint32_t channel ) |
---|
| 717 | { |
---|
| 718 | xptr_t chdev_xp; |
---|
| 719 | cxy_t chdev_cxy; |
---|
| 720 | chdev_t * chdev_ptr; |
---|
| 721 | thread_t * server_ptr; |
---|
| 722 | xptr_t server_xp; |
---|
| 723 | |
---|
| 724 | while( 1 ) |
---|
| 725 | { |
---|
| 726 | // try to register R2T request |
---|
| 727 | error_t error = remote_buf_put_from_kernel( queue_xp, |
---|
[683] | 728 | &flags, |
---|
[662] | 729 | 1 ); |
---|
| 730 | if( error ) |
---|
| 731 | { |
---|
| 732 | // queue full => wait and retry |
---|
| 733 | sched_yield( "waiting R2T queue" ); |
---|
| 734 | } |
---|
| 735 | else |
---|
| 736 | { |
---|
| 737 | // get NIC_TX chdev pointers |
---|
| 738 | chdev_xp = chdev_dir.nic_tx[channel]; |
---|
| 739 | chdev_cxy = GET_CXY( chdev_xp ); |
---|
| 740 | chdev_ptr = GET_PTR( chdev_xp ); |
---|
| 741 | |
---|
| 742 | // get NIC_TX server thread pointers |
---|
| 743 | server_ptr = hal_remote_lpt( XPTR( chdev_cxy , &chdev_ptr->server ) ); |
---|
| 744 | server_xp = XPTR( chdev_cxy , server_ptr ); |
---|
| 745 | |
---|
| 746 | // unblocks NIC_TX server thread |
---|
| 747 | thread_unblock( server_xp , THREAD_BLOCKED_CLIENT ); |
---|
| 748 | |
---|
| 749 | return; |
---|
| 750 | } |
---|
| 751 | } |
---|
| 752 | } // end socket_put_r2t_request() |
---|
[683] | 753 | |
---|
| 754 | /////////////////////////////////////////////////// |
---|
| 755 | error_t socket_get_r2t_request( xptr_t queue_xp, |
---|
| 756 | uint8_t * flags ) |
---|
| 757 | { |
---|
| 758 | // get one request from R2T queue |
---|
| 759 | return remote_buf_get_to_kernel( queue_xp, |
---|
| 760 | flags, |
---|
| 761 | 1 ); |
---|
| 762 | } // end socket_get_r2T_request() |
---|
[662] | 763 | |
---|
| 764 | /////////////////////////////////////////////////// |
---|
| 765 | error_t socket_put_crq_request( xptr_t queue_xp, |
---|
| 766 | uint32_t remote_addr, |
---|
| 767 | uint32_t remote_port, |
---|
| 768 | uint32_t remote_iss, |
---|
| 769 | uint32_t remote_window ) |
---|
| 770 | { |
---|
| 771 | connect_request_t req; |
---|
| 772 | |
---|
| 773 | // build request |
---|
| 774 | req.addr = remote_addr; |
---|
| 775 | req.port = remote_port; |
---|
| 776 | req.iss = remote_iss; |
---|
| 777 | req.window = remote_window; |
---|
| 778 | |
---|
| 779 | // try to register request in CRQ |
---|
| 780 | return remote_buf_put_from_kernel( queue_xp, |
---|
| 781 | (uint8_t *)(&req), |
---|
| 782 | sizeof(connect_request_t) ); |
---|
| 783 | } // end socket_put_crq_request() |
---|
| 784 | |
---|
| 785 | //////////////////////////////////////////////////// |
---|
| 786 | error_t socket_get_crq_request( xptr_t queue_xp, |
---|
| 787 | uint32_t * remote_addr, |
---|
| 788 | uint32_t * remote_port, |
---|
| 789 | uint32_t * remote_iss, |
---|
| 790 | uint32_t * remote_window ) |
---|
| 791 | { |
---|
| 792 | connect_request_t req; |
---|
| 793 | error_t error; |
---|
| 794 | |
---|
| 795 | // get request from CRQ |
---|
| 796 | error = remote_buf_get_to_kernel( queue_xp, |
---|
| 797 | (uint8_t *)(&req), |
---|
| 798 | sizeof(connect_request_t) ); |
---|
| 799 | // extract request arguments |
---|
| 800 | *remote_addr = req.addr; |
---|
| 801 | *remote_port = req.port; |
---|
| 802 | *remote_iss = req.iss; |
---|
| 803 | *remote_window = req.window; |
---|
| 804 | |
---|
| 805 | return error; |
---|
| 806 | |
---|
| 807 | } // end socket_get_crq_request() |
---|
| 808 | |
---|
| 809 | |
---|
| 810 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 811 | // Functions implementing the SOCKET related syscalls |
---|
| 812 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 813 | |
---|
| 814 | ////////////////////////////////////// |
---|
| 815 | int socket_build( uint32_t domain, |
---|
| 816 | uint32_t type ) |
---|
| 817 | { |
---|
| 818 | uint32_t fdid; |
---|
| 819 | socket_t * socket; |
---|
| 820 | error_t error; |
---|
| 821 | |
---|
| 822 | #if DEBUG_SOCKET_BUILD |
---|
| 823 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 824 | thread_t * this = CURRENT_THREAD; |
---|
| 825 | process_t * process = this->process; |
---|
| 826 | if( DEBUG_SOCKET_BUILD < cycle ) |
---|
| 827 | printk("\n[%s] thread[%x,%x] enter / %s / %s / cycle %d\n", |
---|
| 828 | __FUNCTION__, process->pid, this->trdid, |
---|
| 829 | socket_domain_str(domain), socket_type_str(type), cycle ); |
---|
| 830 | #endif |
---|
| 831 | |
---|
| 832 | |
---|
| 833 | // allocate memory for the file descriptor and for the socket |
---|
| 834 | error = socket_create( local_cxy, |
---|
| 835 | domain, |
---|
| 836 | type, |
---|
| 837 | &socket, |
---|
| 838 | &fdid ); |
---|
| 839 | |
---|
| 840 | #if DEBUG_SOCKET_BUILD |
---|
| 841 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 842 | if( DEBUG_SOCKET_BUILD < cycle ) |
---|
| 843 | printk("\n[%s] thread[%x,%x] exit / socket %x / fdid %d / %s / cycle %d\n", |
---|
| 844 | __FUNCTION__, process->pid, this->trdid, socket, fdid, |
---|
| 845 | socket_state_str(hal_remote_l32(XPTR(local_cxy , &socket->state))), |
---|
| 846 | cycle ); |
---|
| 847 | #endif |
---|
| 848 | |
---|
| 849 | if( error ) return -1; |
---|
| 850 | return fdid; |
---|
[657] | 851 | } |
---|
| 852 | |
---|
[662] | 853 | //////////////////////////////// |
---|
| 854 | int socket_bind( uint32_t fdid, |
---|
| 855 | uint32_t addr, |
---|
| 856 | uint16_t port ) |
---|
| 857 | { |
---|
[669] | 858 | vfs_file_type_t file_type; |
---|
[662] | 859 | socket_t * socket; |
---|
| 860 | uint32_t socket_type; |
---|
| 861 | uint32_t socket_state; |
---|
[657] | 862 | |
---|
[662] | 863 | thread_t * this = CURRENT_THREAD; |
---|
| 864 | process_t * process = this->process; |
---|
[657] | 865 | |
---|
[683] | 866 | #if DEBUG_SOCKET_BIND || DEBUG_SOCKET_ERROR |
---|
| 867 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 868 | #endif |
---|
| 869 | |
---|
[662] | 870 | #if DEBUG_SOCKET_BIND |
---|
| 871 | if( DEBUG_SOCKET_BIND < cycle ) |
---|
| 872 | printk("\n[%s] thread[%x,%x] enter / socket[%x,%d] / addr %x / port %x / cycle %d\n", |
---|
| 873 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, addr, port, cycle ); |
---|
| 874 | #endif |
---|
[657] | 875 | |
---|
[662] | 876 | // get pointers on file descriptor |
---|
| 877 | xptr_t file_xp = process_fd_get_xptr_from_local( process , fdid ); |
---|
| 878 | vfs_file_t * file_ptr = GET_PTR( file_xp ); |
---|
| 879 | cxy_t file_cxy = GET_CXY( file_xp ); |
---|
| 880 | |
---|
| 881 | // check file_xp |
---|
| 882 | if( file_xp == XPTR_NULL ) |
---|
| 883 | { |
---|
[683] | 884 | |
---|
| 885 | #if DEBUG_SOCKET_ERROR |
---|
| 886 | printk("\n[ERROR] in %s : undefined fdid %d / thread[%x,%x] / cycle %d\n", |
---|
| 887 | __FUNCTION__, fdid, process->pid, this->trdid, cycle ); |
---|
| 888 | #endif |
---|
[662] | 889 | return -1; |
---|
| 890 | } |
---|
| 891 | |
---|
| 892 | file_type = hal_remote_l32( XPTR( file_cxy , &file_ptr->type ) ); |
---|
| 893 | socket = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
| 894 | |
---|
| 895 | // check file descriptor type |
---|
[669] | 896 | if( file_type != FILE_TYPE_SOCK ) |
---|
[662] | 897 | { |
---|
[683] | 898 | |
---|
| 899 | #if DEBUG_SOCKET_ERROR |
---|
| 900 | printk("\n[ERROR] in %s : illegal file type %s / thread[%x,%x] / cycle %d", |
---|
| 901 | __FUNCTION__, vfs_inode_type_str( file_type ), process->pid, this->trdid, cycle ); |
---|
| 902 | #endif |
---|
[662] | 903 | return -1; |
---|
| 904 | } |
---|
| 905 | |
---|
| 906 | // get socket type |
---|
| 907 | socket_type = hal_remote_l32(XPTR( file_cxy , &socket->type )); |
---|
| 908 | |
---|
| 909 | // compute socket state |
---|
| 910 | socket_state = (socket_type == SOCK_STREAM) ? TCP_STATE_BOUND : UDP_STATE_BOUND; |
---|
| 911 | |
---|
| 912 | // update the socket descriptor |
---|
| 913 | hal_remote_s32( XPTR( file_cxy , &socket->local_addr ) , addr ); |
---|
| 914 | hal_remote_s32( XPTR( file_cxy , &socket->local_port ) , port ); |
---|
| 915 | hal_remote_s32( XPTR( file_cxy , &socket->state ) , socket_state ); |
---|
| 916 | |
---|
| 917 | #if DEBUG_SOCKET_BIND |
---|
| 918 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 919 | if( DEBUG_SOCKET_BIND < cycle ) |
---|
| 920 | printk("\n[%s] thread[%x,%x] exit / socket[%x,%d] / %s / addr %x / port %x / cycle %d\n", |
---|
| 921 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, |
---|
| 922 | socket_state_str(hal_remote_l32( XPTR( file_cxy , &socket->state ))), |
---|
| 923 | hal_remote_l32( XPTR( file_cxy , &socket->local_addr )), |
---|
| 924 | hal_remote_l32( XPTR( file_cxy , &socket->local_port )), |
---|
| 925 | cycle ); |
---|
| 926 | #endif |
---|
| 927 | |
---|
| 928 | return 0; |
---|
| 929 | |
---|
| 930 | } // end socket_bind() |
---|
| 931 | |
---|
| 932 | ////////////////////////////////// |
---|
| 933 | int socket_listen( uint32_t fdid, |
---|
| 934 | uint32_t crq_depth ) |
---|
| 935 | { |
---|
| 936 | xptr_t file_xp; |
---|
| 937 | vfs_file_t * file_ptr; |
---|
| 938 | cxy_t file_cxy; |
---|
[669] | 939 | vfs_file_type_t file_type; |
---|
[662] | 940 | socket_t * socket_ptr; |
---|
| 941 | uint32_t socket_type; |
---|
| 942 | uint32_t socket_state; |
---|
| 943 | uint32_t socket_local_addr; |
---|
| 944 | uint32_t socket_local_port; |
---|
| 945 | error_t error; |
---|
| 946 | |
---|
| 947 | thread_t * this = CURRENT_THREAD; |
---|
| 948 | process_t * process = this->process; |
---|
| 949 | |
---|
[683] | 950 | #if DEBUG_SOCKET_LISTEN || DEBUG_SOCKET_ERROR |
---|
| 951 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 952 | #endif |
---|
| 953 | |
---|
[662] | 954 | #if DEBUG_SOCKET_LISTEN |
---|
| 955 | if( DEBUG_SOCKET_LISTEN < cycle ) |
---|
| 956 | printk("\n[%s] thread[%x,%x] enter / socket[%x,%d] / crq_depth %x / cycle %d\n", |
---|
| 957 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, crq_depth, cycle ); |
---|
| 958 | #endif |
---|
| 959 | |
---|
| 960 | // get pointers on file descriptor |
---|
| 961 | file_xp = process_fd_get_xptr_from_local( process , fdid ); |
---|
| 962 | file_ptr = GET_PTR( file_xp ); |
---|
| 963 | file_cxy = GET_CXY( file_xp ); |
---|
| 964 | |
---|
| 965 | // check file_xp |
---|
| 966 | if( file_xp == XPTR_NULL ) |
---|
| 967 | { |
---|
[683] | 968 | |
---|
| 969 | #if DEBUG_SOCKET_ERROR |
---|
| 970 | printk("\n[ERROR] in %s : undefined fdid %d / thread[%x,%x] / cycle %d\n", |
---|
| 971 | __FUNCTION__, fdid, process->pid, this->trdid, cycle ); |
---|
| 972 | #endif |
---|
[662] | 973 | return -1; |
---|
| 974 | } |
---|
| 975 | |
---|
| 976 | file_type = hal_remote_l32( XPTR( file_cxy , &file_ptr->type ) ); |
---|
| 977 | socket_ptr = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
| 978 | |
---|
| 979 | // check file descriptor type |
---|
[669] | 980 | if( file_type != FILE_TYPE_SOCK ) |
---|
[662] | 981 | { |
---|
[683] | 982 | |
---|
| 983 | #if DEBUG_SOCKET_ERROR |
---|
| 984 | printk("\n[ERROR] in %s : illegal file type %s / thread[%x,%x] / cycle %d\n", |
---|
| 985 | __FUNCTION__, vfs_inode_type_str(file_type), process->pid, this->trdid, cycle ); |
---|
| 986 | #endif |
---|
[662] | 987 | return -1; |
---|
| 988 | } |
---|
| 989 | |
---|
[669] | 990 | // get relevant infos from socket descriptor |
---|
[662] | 991 | socket_type = hal_remote_l32( XPTR( file_cxy , &socket_ptr->type )); |
---|
| 992 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state )); |
---|
| 993 | socket_local_addr = hal_remote_l32( XPTR( file_cxy , &socket_ptr->local_addr )); |
---|
| 994 | socket_local_port = hal_remote_l32( XPTR( file_cxy , &socket_ptr->local_port )); |
---|
| 995 | |
---|
| 996 | // check socket type |
---|
| 997 | if( socket_type != SOCK_STREAM ) |
---|
| 998 | { |
---|
[683] | 999 | |
---|
| 1000 | #if DEBUG_SOCKET_ERROR |
---|
| 1001 | printk("\n[ERROR] in %s : illegal socket type %s / thread[%x,%x] / cycle %d\n", |
---|
| 1002 | __FUNCTION__, socket_type_str(socket_type), process->pid, this->trdid, cycle ); |
---|
| 1003 | #endif |
---|
[662] | 1004 | return -1; |
---|
| 1005 | } |
---|
| 1006 | |
---|
| 1007 | // check socket state |
---|
| 1008 | if( socket_state != TCP_STATE_BOUND ) |
---|
| 1009 | { |
---|
[683] | 1010 | |
---|
| 1011 | #if DEBUG_SOCKET_ERROR |
---|
| 1012 | printk("\n[ERROR] in %s : illegal socket state %s / thread[%x,%x] / cycle %d\n", |
---|
| 1013 | __FUNCTION__, socket_state_str(socket_state), process->pid, this->trdid, cycle ); |
---|
| 1014 | #endif |
---|
[662] | 1015 | return -1; |
---|
| 1016 | } |
---|
| 1017 | |
---|
[669] | 1018 | // compute CRQ queue depth : max( crq_depth , CONFIG_SOCK_CRQ_BUF_SIZE ) |
---|
| 1019 | uint32_t depth = ( crq_depth > CONFIG_SOCK_CRQ_BUF_SIZE ) ? |
---|
| 1020 | crq_depth : CONFIG_SOCK_CRQ_BUF_SIZE; |
---|
[662] | 1021 | |
---|
| 1022 | // allocate memory for the CRQ queue |
---|
| 1023 | error = remote_buf_init( XPTR( file_cxy , &socket_ptr->crqq ), |
---|
[669] | 1024 | bits_log2( depth * sizeof(connect_request_t)) ); |
---|
[662] | 1025 | if( error ) |
---|
| 1026 | { |
---|
[683] | 1027 | |
---|
| 1028 | #if DEBUG_SOCKET_ERROR |
---|
| 1029 | printk("\n[ERROR] in %s : cannot allocate CRQ queue / thread[%x,%x] / cycle %d\n", |
---|
| 1030 | __FUNCTION__, process->pid, this->trdid, cycle ); |
---|
| 1031 | #endif |
---|
[662] | 1032 | return -1; |
---|
| 1033 | } |
---|
| 1034 | |
---|
| 1035 | // update socket.state |
---|
| 1036 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->state ) , TCP_STATE_LISTEN ); |
---|
| 1037 | |
---|
[669] | 1038 | // register socket in the list of listening socket |
---|
| 1039 | socket_link_to_listen( XPTR( file_cxy , socket_ptr ) ); |
---|
[662] | 1040 | |
---|
| 1041 | #if DEBUG_SOCKET_LISTEN |
---|
| 1042 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1043 | if( DEBUG_SOCKET_LISTEN < cycle ) |
---|
| 1044 | printk("\n[%s] thread[%x,%x] exit / socket[%x,%d] / %s / cycle %d\n", |
---|
| 1045 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, |
---|
| 1046 | socket_state_str(socket_state), cycle ); |
---|
| 1047 | #endif |
---|
| 1048 | |
---|
| 1049 | return 0; |
---|
| 1050 | |
---|
| 1051 | } // end socket_listen() |
---|
| 1052 | |
---|
| 1053 | /////////////////////////////////// |
---|
| 1054 | int socket_accept( uint32_t fdid, |
---|
| 1055 | uint32_t * remote_addr, |
---|
| 1056 | uint16_t * remote_port ) |
---|
| 1057 | { |
---|
| 1058 | xptr_t file_xp; // extended pointer on remote file |
---|
| 1059 | vfs_file_t * file_ptr; |
---|
| 1060 | cxy_t file_cxy; |
---|
[683] | 1061 | vfs_file_type_t file_type; // file descriptor type |
---|
[662] | 1062 | socket_t * socket_ptr; // local pointer on remote waiting socket |
---|
| 1063 | uint32_t socket_type; // listening socket type |
---|
| 1064 | uint32_t socket_state; // listening socket state |
---|
| 1065 | uint32_t socket_domain; // listening socket domain |
---|
| 1066 | uint32_t socket_local_addr; // listening socket local IP address |
---|
| 1067 | uint32_t socket_local_port; // listening socket local port |
---|
| 1068 | uint32_t socket_tx_nxt; // listening socket tx_nxt |
---|
| 1069 | bool_t socket_tx_valid; // listening socket tx_valid |
---|
| 1070 | xptr_t socket_tx_client; // listening socket tx_client thread |
---|
| 1071 | bool_t socket_rx_valid; // listening socket rx_valid |
---|
| 1072 | xptr_t socket_rx_client; // listening socket rx_client thread |
---|
| 1073 | xptr_t socket_lock_xp; // listening socket lock |
---|
| 1074 | xptr_t crq_xp; // listening socket CRQ queue |
---|
| 1075 | uint32_t crq_status; // number of bytes in CRQ |
---|
| 1076 | cxy_t new_socket_cxy; // new socket cluster identifier |
---|
| 1077 | socket_t * new_socket_ptr; // local pointer on new socket |
---|
| 1078 | xptr_t new_socket_xp; // extended pointer on new socket |
---|
| 1079 | volatile uint32_t new_state; // new socket state (modified by NIC_RX thread) |
---|
| 1080 | uint32_t new_fdid; // new socket file descriptor index |
---|
| 1081 | uint32_t new_remote_addr; // new socket remote IP address |
---|
| 1082 | uint32_t new_remote_port; // new socket remote port |
---|
| 1083 | uint32_t new_remote_iss; // new socket remote iss |
---|
| 1084 | uint32_t new_remote_window; // new socket receive window |
---|
| 1085 | xptr_t tx_server_xp; // extended pointer on TX server thread |
---|
| 1086 | thread_t * tx_server_ptr; // local pointer on TX server thread |
---|
| 1087 | uint32_t cmd_status; // command status (rx_sts or tx_sts) |
---|
| 1088 | bool_t cmd_valid; // valid command (rx_valid or tx_valid) |
---|
| 1089 | error_t error; |
---|
| 1090 | |
---|
| 1091 | thread_t * this = CURRENT_THREAD; |
---|
| 1092 | xptr_t client_xp = XPTR( local_cxy , this ); |
---|
| 1093 | process_t * process = this->process; |
---|
| 1094 | |
---|
[683] | 1095 | #if DEBUG_SOCKET_ACCEPT || DEBUG_SOCKET_ERROR |
---|
[662] | 1096 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
[683] | 1097 | #endif |
---|
| 1098 | |
---|
| 1099 | #if DEBUG_SOCKET_ACCEPT |
---|
[662] | 1100 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 1101 | printk("\n[%s] thread[%x,%x] enter for socket[%x,%d] / cycle %d\n", |
---|
| 1102 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 1103 | #endif |
---|
| 1104 | |
---|
| 1105 | // 1) get pointers on file descriptor |
---|
| 1106 | file_xp = process_fd_get_xptr_from_local( process , fdid ); |
---|
| 1107 | file_ptr = GET_PTR( file_xp ); |
---|
| 1108 | file_cxy = GET_CXY( file_xp ); |
---|
| 1109 | |
---|
| 1110 | // check file_xp |
---|
| 1111 | if( file_xp == XPTR_NULL ) |
---|
| 1112 | { |
---|
[683] | 1113 | |
---|
| 1114 | #if DEBUG_SOCKET_ERROR |
---|
| 1115 | printk("\n[ERROR] in %s : undefined fdid %d / thead[%x,%x] / cycle %d", |
---|
| 1116 | __FUNCTION__, fdid, process->pid, this->trdid, cycle ); |
---|
| 1117 | #endif |
---|
[662] | 1118 | return -1; |
---|
| 1119 | } |
---|
| 1120 | |
---|
| 1121 | file_type = hal_remote_l32( XPTR( file_cxy , &file_ptr->type ) ); |
---|
| 1122 | socket_ptr = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
| 1123 | |
---|
| 1124 | // check file descriptor type |
---|
[669] | 1125 | if( file_type != FILE_TYPE_SOCK ) |
---|
[662] | 1126 | { |
---|
[683] | 1127 | |
---|
| 1128 | #if DEBUG_SOCKET_ERROR |
---|
| 1129 | printk("\n[ERROR] in %s : illegal file type %s / thread[%x,%x] / cycle %d\n", |
---|
| 1130 | __FUNCTION__, vfs_inode_type_str(file_type), process->pid, this->trdid, cycle ); |
---|
| 1131 | #endif |
---|
[662] | 1132 | return -1; |
---|
| 1133 | } |
---|
| 1134 | |
---|
| 1135 | // build extended pointer on listening socket lock |
---|
| 1136 | socket_lock_xp = XPTR( file_cxy , &socket_ptr->lock ); |
---|
| 1137 | |
---|
| 1138 | // acquire listening socket lock |
---|
| 1139 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 1140 | |
---|
| 1141 | // get listening socket type, domain, state, local_addr, local_port & tx_nxt |
---|
| 1142 | socket_type = hal_remote_l32( XPTR( file_cxy , &socket_ptr->type )); |
---|
| 1143 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state )); |
---|
| 1144 | socket_domain = hal_remote_l32( XPTR( file_cxy , &socket_ptr->domain )); |
---|
| 1145 | socket_local_addr = hal_remote_l32( XPTR( file_cxy , &socket_ptr->local_addr )); |
---|
| 1146 | socket_local_port = hal_remote_l32( XPTR( file_cxy , &socket_ptr->local_port )); |
---|
| 1147 | socket_tx_nxt = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_nxt )); |
---|
| 1148 | socket_tx_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_valid )); |
---|
| 1149 | socket_tx_client = hal_remote_l64( XPTR( file_cxy , &socket_ptr->tx_client )); |
---|
| 1150 | socket_rx_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->rx_valid )); |
---|
| 1151 | socket_rx_client = hal_remote_l64( XPTR( file_cxy , &socket_ptr->rx_client )); |
---|
| 1152 | |
---|
| 1153 | // check socket type |
---|
| 1154 | if( socket_type != SOCK_STREAM ) |
---|
| 1155 | { |
---|
[683] | 1156 | |
---|
| 1157 | #if DEBUG_SOCKET_ERROR |
---|
| 1158 | printk("\n[ERROR] in %s : illegal socket type %s / thread[%x,%x] / cycle %d\n", |
---|
| 1159 | __FUNCTION__, socket_type_str(socket_type), process->pid , this->trdid, cycle ); |
---|
| 1160 | #endif |
---|
[662] | 1161 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1162 | return -1; |
---|
| 1163 | } |
---|
| 1164 | |
---|
| 1165 | // check socket state |
---|
| 1166 | if( socket_state != TCP_STATE_LISTEN ) |
---|
| 1167 | { |
---|
[683] | 1168 | |
---|
| 1169 | #if DEBUG_SOCKET_ERROR |
---|
| 1170 | printk("\n[ERROR] in %s : illegal socket state %s / thread[%x,%x] / cycle %d\n", |
---|
| 1171 | __FUNCTION__, socket_state_str(socket_state), process->pid, this->trdid, cycle ); |
---|
| 1172 | #endif |
---|
[662] | 1173 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1174 | return -1; |
---|
| 1175 | } |
---|
| 1176 | |
---|
| 1177 | // check no previous RX command |
---|
| 1178 | if( (socket_rx_valid == true) || (socket_rx_client != XPTR_NULL) ) |
---|
| 1179 | { |
---|
[683] | 1180 | |
---|
| 1181 | #if DEBUG_SOCKET_ERROR |
---|
| 1182 | printk("\n[ERROR] in %s : previous RX cmd on socket[%x,%d] / thread[%x,%x] / cycle %d\n", |
---|
| 1183 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid, cycle ); |
---|
| 1184 | #endif |
---|
[662] | 1185 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1186 | return -1; |
---|
| 1187 | } |
---|
| 1188 | |
---|
| 1189 | // check no previous TX command |
---|
| 1190 | if( (socket_tx_valid == true) || (socket_tx_client != XPTR_NULL) ) |
---|
| 1191 | { |
---|
[683] | 1192 | |
---|
| 1193 | #if DEBUG_SOCKET_ERROR |
---|
| 1194 | printk("\n[ERROR] in %s : previous TX cmd on socket[%x,%d] / thread[%x,%x] / cycle %d\n", |
---|
| 1195 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid, cycle ); |
---|
| 1196 | #endif |
---|
[662] | 1197 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1198 | return -1; |
---|
| 1199 | } |
---|
| 1200 | |
---|
[683] | 1201 | // 2) check the listenig socket CRQ |
---|
[662] | 1202 | crq_xp = XPTR( file_cxy , &socket_ptr->crqq ); |
---|
| 1203 | |
---|
| 1204 | // get CRQ status |
---|
| 1205 | crq_status = remote_buf_status( crq_xp ); |
---|
| 1206 | |
---|
[683] | 1207 | // block & deschedule to wait a client request when CRQ empty |
---|
[662] | 1208 | if( crq_status == 0 ) |
---|
| 1209 | { |
---|
[683] | 1210 | // register command arguments for NIC_RX server in listening socket |
---|
[662] | 1211 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->rx_cmd ), CMD_RX_ACCEPT ); |
---|
| 1212 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->rx_client ), client_xp ); |
---|
| 1213 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->rx_valid ), true ); |
---|
| 1214 | |
---|
| 1215 | // release listening socket lock |
---|
| 1216 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1217 | |
---|
| 1218 | #if DEBUG_SOCKET_ACCEPT |
---|
| 1219 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1220 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 1221 | printk("\n[%s] thread[%x,%x] socket[%x,%d] / CRQ empty => blocks on <IO> / cycle %d\n", |
---|
| 1222 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 1223 | #endif |
---|
| 1224 | // block & deschedule when CRQQ empty |
---|
| 1225 | thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_IO ); |
---|
| 1226 | sched_yield( "CRQ queue empty"); |
---|
| 1227 | |
---|
| 1228 | #if DEBUG_SOCKET_ACCEPT |
---|
| 1229 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1230 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 1231 | printk("\n[%s] thread[%x,%x] socket[%x,%d] / resumes / cycle %d\n", |
---|
| 1232 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 1233 | #endif |
---|
| 1234 | // take listening socket lock |
---|
| 1235 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 1236 | |
---|
| 1237 | // get CRQ status & command status |
---|
| 1238 | cmd_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->rx_valid ) ); |
---|
| 1239 | cmd_status = hal_remote_l32( XPTR( file_cxy , &socket_ptr->rx_sts ) ); |
---|
| 1240 | crq_status = remote_buf_status( crq_xp ); |
---|
| 1241 | |
---|
[683] | 1242 | assert( __FUNCTION__, |
---|
| 1243 | (((crq_status > 0) || (cmd_status!= CMD_STS_SUCCESS)) && (cmd_valid == false)), |
---|
[662] | 1244 | "illegal socket state when client thread resumes after RX_ACCEPT" ); |
---|
| 1245 | |
---|
| 1246 | // reset socket.rx_client |
---|
| 1247 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->rx_client ) , XPTR_NULL ); |
---|
| 1248 | |
---|
| 1249 | if( cmd_status != CMD_STS_SUCCESS ) |
---|
| 1250 | { |
---|
[683] | 1251 | |
---|
| 1252 | #if DEBUG_SOCKET_ERROR |
---|
| 1253 | printk("\n[ERROR] in %s : reported for RX / socket[%x,%d] / thread[%x,%x] / cycle %d\n", |
---|
| 1254 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid, cycle ); |
---|
| 1255 | #endif |
---|
[662] | 1256 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1257 | return -1; |
---|
| 1258 | } |
---|
[683] | 1259 | } // end blocking on CRQ empty |
---|
[662] | 1260 | |
---|
[683] | 1261 | // from this point, we can extract a request from listening socket CRQ |
---|
| 1262 | error = socket_get_crq_request( crq_xp, |
---|
[662] | 1263 | &new_remote_addr, |
---|
| 1264 | &new_remote_port, |
---|
| 1265 | &new_remote_iss, |
---|
| 1266 | &new_remote_window ); |
---|
[669] | 1267 | assert( __FUNCTION__, (error == 0), |
---|
[662] | 1268 | "cannot get a connection request from a non-empty CRQ" ); |
---|
| 1269 | |
---|
[683] | 1270 | // release listening socket lock |
---|
| 1271 | remote_queuelock_release( socket_lock_xp ); |
---|
[662] | 1272 | |
---|
| 1273 | #if DEBUG_SOCKET_ACCEPT |
---|
| 1274 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1275 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
[683] | 1276 | printk("\n[%s] thread[%x,%x] socket[%x,%d] / CRQ request [addr %x / port %x] / cycle %d\n", |
---|
| 1277 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, |
---|
| 1278 | new_remote_addr, new_remote_port, cycle ); |
---|
[662] | 1279 | #endif |
---|
| 1280 | |
---|
| 1281 | // 3) select a cluster for the new socket |
---|
| 1282 | new_socket_cxy = cluster_random_select(); |
---|
| 1283 | |
---|
| 1284 | // allocate memory for the new socket descriptor |
---|
| 1285 | error = socket_create( new_socket_cxy, |
---|
| 1286 | socket_domain, |
---|
| 1287 | socket_type, |
---|
| 1288 | &new_socket_ptr, |
---|
| 1289 | &new_fdid ); |
---|
| 1290 | if( error ) |
---|
| 1291 | { |
---|
[683] | 1292 | |
---|
| 1293 | #if DEBUG_SOCKET_ERROR |
---|
| 1294 | printk("\n[ERROR] in %s : cannot create new socket / thread[%x,%x] / cycle %d\n", |
---|
| 1295 | __FUNCTION__, process->pid, this->trdid, cycle ); |
---|
| 1296 | #endif |
---|
[662] | 1297 | return -1; |
---|
| 1298 | } |
---|
| 1299 | |
---|
| 1300 | // build extended poiner on new socket |
---|
| 1301 | new_socket_xp = XPTR( new_socket_cxy , new_socket_ptr ); |
---|
| 1302 | |
---|
| 1303 | #if DEBUG_SOCKET_ACCEPT |
---|
| 1304 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1305 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 1306 | printk("\n[%s] thread[%x,%x] created new socket[%x,%d] / cycle %d\n", |
---|
| 1307 | __FUNCTION__, process->pid, this->trdid, process->pid, new_fdid, cycle ); |
---|
| 1308 | #endif |
---|
| 1309 | |
---|
| 1310 | // compute NIC channel index from remote_addr and remote_port |
---|
| 1311 | uint32_t new_nic_channel = dev_nic_get_key( new_remote_addr , new_remote_port ); |
---|
| 1312 | |
---|
| 1313 | // update new socket descriptor |
---|
| 1314 | hal_remote_s32(XPTR(new_socket_cxy , &new_socket_ptr->local_addr ) , socket_local_addr ); |
---|
| 1315 | hal_remote_s32(XPTR(new_socket_cxy , &new_socket_ptr->local_port ) , socket_local_port ); |
---|
| 1316 | hal_remote_s32(XPTR(new_socket_cxy , &new_socket_ptr->remote_addr) , new_remote_addr ); |
---|
| 1317 | hal_remote_s32(XPTR(new_socket_cxy , &new_socket_ptr->remote_port) , new_remote_port ); |
---|
| 1318 | hal_remote_s32(XPTR(new_socket_cxy , &new_socket_ptr->nic_channel) , new_nic_channel ); |
---|
| 1319 | hal_remote_s32(XPTR(new_socket_cxy , &new_socket_ptr->state ) , TCP_STATE_SYN_RCVD ); |
---|
| 1320 | |
---|
| 1321 | // set new socket TCB : increment tx_nxt / initialize rx_nxt, rx_irs, rx_wnd |
---|
| 1322 | hal_remote_s32( XPTR( new_socket_cxy , &new_socket_ptr->tx_nxt ), socket_tx_nxt + 1 ); |
---|
| 1323 | hal_remote_s32( XPTR( new_socket_cxy , &new_socket_ptr->rx_nxt ), new_remote_iss + 1 ); |
---|
| 1324 | hal_remote_s32( XPTR( new_socket_cxy , &new_socket_ptr->rx_irs ), new_remote_iss ); |
---|
| 1325 | hal_remote_s32( XPTR( new_socket_cxy , &new_socket_ptr->rx_wnd ), new_remote_window ); |
---|
| 1326 | |
---|
| 1327 | // link new socket to chdev servers |
---|
| 1328 | socket_link_to_servers( new_socket_xp , new_nic_channel ); |
---|
| 1329 | |
---|
| 1330 | // 3) get pointers on NIC_TX[channel] chdev |
---|
| 1331 | xptr_t tx_chdev_xp = chdev_dir.nic_tx[new_nic_channel]; |
---|
| 1332 | chdev_t * tx_chdev_ptr = GET_PTR( tx_chdev_xp ); |
---|
| 1333 | cxy_t tx_chdev_cxy = GET_CXY( tx_chdev_xp ); |
---|
| 1334 | |
---|
| 1335 | // get pointers on NIC_TX[channel] server thread |
---|
| 1336 | tx_server_ptr = hal_remote_lpt( XPTR( tx_chdev_cxy , &tx_chdev_ptr->server )); |
---|
| 1337 | tx_server_xp = XPTR( tx_chdev_cxy , tx_server_ptr ); |
---|
| 1338 | |
---|
| 1339 | // register command arguments in new socket to request a SYN_ACK segment |
---|
| 1340 | hal_remote_s32( XPTR( new_socket_cxy , &new_socket_ptr->tx_cmd ), CMD_TX_ACCEPT ); |
---|
| 1341 | hal_remote_s64( XPTR( new_socket_cxy , &new_socket_ptr->tx_client ), client_xp ); |
---|
| 1342 | hal_remote_s32( XPTR( new_socket_cxy , &new_socket_ptr->tx_valid ), true ); |
---|
| 1343 | |
---|
| 1344 | // unblock NIC_TX server thread |
---|
| 1345 | thread_unblock( tx_server_xp , THREAD_BLOCKED_CLIENT ); |
---|
[669] | 1346 | |
---|
| 1347 | // start retransmission timer |
---|
[683] | 1348 | alarm_start( client_xp, |
---|
| 1349 | hal_get_cycles() + CONFIG_SOCK_RETRY_TIMEOUT, |
---|
| 1350 | &socket_alarm_handler, |
---|
| 1351 | new_socket_xp ); |
---|
[669] | 1352 | |
---|
[662] | 1353 | #if DEBUG_SOCKET_ACCEPT |
---|
| 1354 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1355 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
[683] | 1356 | printk("\n[%s] thread[%x,%x] for socket[%x,%d] request SYN-ACK & blocks on <IO> / cycle %d\n", |
---|
[662] | 1357 | __FUNCTION__, process->pid, this->trdid, process->pid, new_fdid, cycle ); |
---|
| 1358 | #endif |
---|
| 1359 | |
---|
| 1360 | // client thread blocks & deschedules |
---|
| 1361 | thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_IO ); |
---|
| 1362 | sched_yield( "waiting new socket connection"); |
---|
| 1363 | |
---|
| 1364 | #if DEBUG_SOCKET_ACCEPT |
---|
| 1365 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1366 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 1367 | printk("\n[%s] thread[%x,%x] new_socket[%x,%d] resumes / cycle %d\n", |
---|
| 1368 | __FUNCTION__, process->pid, this->trdid, process->pid, new_fdid, cycle ); |
---|
| 1369 | #endif |
---|
| 1370 | |
---|
[683] | 1371 | // stop retransmission timer in thread descriptor |
---|
| 1372 | alarm_stop( client_xp ); |
---|
[669] | 1373 | |
---|
[662] | 1374 | // get new socket state, tx_valid and tx_sts |
---|
| 1375 | new_state = hal_remote_l32( XPTR( new_socket_cxy , &new_socket_ptr->state )); |
---|
| 1376 | cmd_valid = hal_remote_l32( XPTR( new_socket_cxy , &new_socket_ptr->tx_valid )); |
---|
| 1377 | cmd_status = hal_remote_l32( XPTR( new_socket_cxy , &new_socket_ptr->tx_sts )); |
---|
| 1378 | |
---|
[683] | 1379 | assert( __FUNCTION__, |
---|
| 1380 | (((new_state == TCP_STATE_ESTAB) || (cmd_status != CMD_STS_SUCCESS)) && (cmd_valid == false)), |
---|
[662] | 1381 | "illegal socket state when client thread resumes after TX_ACCEPT" ); |
---|
| 1382 | |
---|
| 1383 | // reset socket.tx_client |
---|
| 1384 | hal_remote_s64( XPTR( new_socket_cxy , &new_socket_ptr->tx_client ) , XPTR_NULL ); |
---|
| 1385 | |
---|
| 1386 | if( cmd_status != CMD_STS_SUCCESS ) |
---|
| 1387 | { |
---|
[683] | 1388 | |
---|
| 1389 | #if DEBUG_SOCKET_ERROR |
---|
| 1390 | printk("\n[ERROR] in %s reported for TX / socket[%x,%d] / thread[%x,%x] / cycle %d\n", |
---|
| 1391 | __FUNCTION__, process->pid, new_fdid, process->pid, this->trdid, cycle ); |
---|
| 1392 | #endif |
---|
[662] | 1393 | return -1; |
---|
| 1394 | } |
---|
| 1395 | else |
---|
| 1396 | { |
---|
| 1397 | |
---|
| 1398 | #if DEBUG_SOCKET_ACCEPT |
---|
| 1399 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1400 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 1401 | printk("\n[%s] thread[%x,%x] new_socket[%x,%d] / state %s / addr %x / port %x / cycle %d\n", |
---|
| 1402 | __FUNCTION__, process->pid, this->trdid, process->pid, new_fdid, |
---|
| 1403 | socket_state_str(new_state), new_remote_addr, new_remote_port, cycle ); |
---|
| 1404 | #endif |
---|
| 1405 | |
---|
| 1406 | // return success |
---|
| 1407 | *remote_addr = new_remote_addr; |
---|
| 1408 | *remote_port = new_remote_port; |
---|
| 1409 | return new_fdid; |
---|
| 1410 | } |
---|
| 1411 | |
---|
| 1412 | } // end socket_accept() |
---|
| 1413 | |
---|
| 1414 | ////////////////////////////////// |
---|
| 1415 | int socket_connect( uint32_t fdid, |
---|
| 1416 | uint32_t remote_addr, |
---|
| 1417 | uint16_t remote_port ) |
---|
| 1418 | { |
---|
[669] | 1419 | vfs_file_type_t file_type; |
---|
| 1420 | xptr_t socket_xp; // extended pointer on socket descriptor |
---|
| 1421 | socket_t * socket_ptr; // local pointer on socket descriptor |
---|
[662] | 1422 | volatile uint32_t socket_state; // socket state (modified by the NIC_TX thread) |
---|
| 1423 | uint32_t socket_type; // socket type |
---|
| 1424 | uint32_t local_addr; // local IP address |
---|
| 1425 | uint32_t local_port; // local port |
---|
| 1426 | xptr_t tx_server_xp; // extended pointer on TX server thread |
---|
| 1427 | thread_t * tx_server_ptr; // local pointer on TX server thread |
---|
| 1428 | uint32_t nic_channel; // NIC channel index |
---|
| 1429 | uint32_t cmd_status; // command status (tx_sts field) |
---|
| 1430 | bool_t cmd_valid; // command valid (tx_valid field) |
---|
| 1431 | |
---|
| 1432 | thread_t * this = CURRENT_THREAD; |
---|
| 1433 | xptr_t client_xp = XPTR( local_cxy , this ); |
---|
[668] | 1434 | pid_t pid = this->process->pid; |
---|
| 1435 | trdid_t trdid = this->trdid; |
---|
[662] | 1436 | |
---|
[683] | 1437 | #if DEBUG_SOCKET_CONNECT || DEBUG_SOCKET_ERROR |
---|
| 1438 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 1439 | #endif |
---|
| 1440 | |
---|
[662] | 1441 | // get pointers on file descriptor |
---|
| 1442 | xptr_t file_xp = process_fd_get_xptr_from_local( this->process , fdid ); |
---|
| 1443 | vfs_file_t * file_ptr = GET_PTR( file_xp ); |
---|
| 1444 | cxy_t file_cxy = GET_CXY( file_xp ); |
---|
| 1445 | |
---|
| 1446 | // check file_xp |
---|
| 1447 | if( file_xp == XPTR_NULL ) |
---|
| 1448 | { |
---|
[683] | 1449 | |
---|
| 1450 | #if DEBUG_SOCKET_ERROR |
---|
| 1451 | printk("\n[ERROR] in %s : undefined fdid %d / thread[%x,%x] / cycle %d", |
---|
| 1452 | __FUNCTION__, fdid, pid, trdid, cycle ); |
---|
| 1453 | #endif |
---|
[662] | 1454 | return -1; |
---|
| 1455 | } |
---|
| 1456 | |
---|
| 1457 | file_type = hal_remote_l32( XPTR( file_cxy , &file_ptr->type ) ); |
---|
| 1458 | socket_ptr = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
[669] | 1459 | socket_xp = XPTR( file_cxy , socket_ptr ); |
---|
[662] | 1460 | |
---|
| 1461 | #if DEBUG_SOCKET_CONNECT |
---|
| 1462 | if( DEBUG_SOCKET_CONNECT < cycle ) |
---|
[683] | 1463 | printk("\n[%s] thread[%x,%x] enter for socket[%x,%d] / addr %x / port %x / cycle %d\n", |
---|
[662] | 1464 | __FUNCTION__, pid, trdid, pid, fdid, remote_addr, remote_port, cycle ); |
---|
| 1465 | #endif |
---|
| 1466 | |
---|
| 1467 | // check file descriptor type |
---|
[669] | 1468 | if( file_type != FILE_TYPE_SOCK ) |
---|
[662] | 1469 | { |
---|
[683] | 1470 | |
---|
| 1471 | #if DEBUG_SOCKET_ERROR |
---|
| 1472 | printk("\n[ERROR] in %s : illegal file type %s / thread[%x,%x] / cycle %d", |
---|
| 1473 | __FUNCTION__, vfs_inode_type_str( file_type ), pid, trdid, cycle ); |
---|
| 1474 | #endif |
---|
[662] | 1475 | return -1; |
---|
| 1476 | } |
---|
| 1477 | |
---|
| 1478 | // get relevant socket infos |
---|
| 1479 | socket_type = hal_remote_l32( XPTR( file_cxy , &socket_ptr->type ) ); |
---|
| 1480 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state ) ); |
---|
| 1481 | local_addr = hal_remote_l32( XPTR( file_cxy , &socket_ptr->local_addr ) ); |
---|
| 1482 | local_port = hal_remote_l32( XPTR( file_cxy , &socket_ptr->local_port ) ); |
---|
| 1483 | |
---|
| 1484 | if( socket_type == SOCK_DGRAM ) // UDP |
---|
| 1485 | { |
---|
| 1486 | if( socket_state != UDP_STATE_BOUND ) |
---|
| 1487 | { |
---|
[683] | 1488 | |
---|
| 1489 | #if DEBUG_SOCKET_ERROR |
---|
| 1490 | printk("\n[ERROR] in %s : illegal socket state %s for type %s / thread[%x,%x] / cycle %d", |
---|
| 1491 | __FUNCTION__, socket_state_str(socket_state), socket_type_str(socket_type), pid, trdid, cycle ); |
---|
| 1492 | #endif |
---|
[662] | 1493 | return -1; |
---|
| 1494 | } |
---|
| 1495 | } |
---|
| 1496 | else if( socket_type == SOCK_STREAM ) // TCP |
---|
| 1497 | { |
---|
| 1498 | if( socket_state != TCP_STATE_BOUND ) |
---|
| 1499 | { |
---|
[683] | 1500 | |
---|
| 1501 | #if DEBUG_SOCKET_ERROR |
---|
| 1502 | printk("\n[ERROR] in %s : illegal socket state %s for type %s / thread[%x,%x] / cycle %d", |
---|
| 1503 | __FUNCTION__, socket_state_str(socket_state), socket_type_str(socket_type), pid, trdid, cycle ); |
---|
| 1504 | #endif |
---|
[662] | 1505 | return -1; |
---|
| 1506 | } |
---|
| 1507 | } |
---|
| 1508 | else |
---|
| 1509 | { |
---|
[683] | 1510 | |
---|
| 1511 | #if DEBUG_SOCKET_ERROR |
---|
| 1512 | printk("\n[ERROR] in %s : illegal socket type / thread[%x,%x] / cycle %d", |
---|
| 1513 | __FUNCTION__, pid, trdid, cycle ); |
---|
| 1514 | #endif |
---|
[662] | 1515 | return -1; |
---|
| 1516 | } |
---|
| 1517 | |
---|
| 1518 | // compute nic_channel index from remote_addr and remote_port |
---|
| 1519 | nic_channel = dev_nic_get_key( remote_addr , remote_port ); |
---|
| 1520 | |
---|
| 1521 | // link socket to chdev servers |
---|
| 1522 | socket_link_to_servers( XPTR( file_cxy , socket_ptr ), nic_channel ); |
---|
| 1523 | |
---|
| 1524 | // update the socket descriptor |
---|
| 1525 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->remote_addr ) , remote_addr ); |
---|
| 1526 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->remote_port ) , remote_port ); |
---|
| 1527 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->nic_channel ) , nic_channel ); |
---|
| 1528 | |
---|
| 1529 | // the actual connection mechanism depends on socket type |
---|
| 1530 | // UDP : client thread updates the local socket state without blocking |
---|
| 1531 | // TCP : client thread request TX server thread to start the 3 steps handshake |
---|
| 1532 | |
---|
| 1533 | if( socket_type == SOCK_DGRAM ) // UDP |
---|
| 1534 | { |
---|
| 1535 | // directly update the local socket state |
---|
| 1536 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->state ) , UDP_STATE_ESTAB ); |
---|
| 1537 | |
---|
| 1538 | return 0; |
---|
| 1539 | } |
---|
| 1540 | else // TCP |
---|
| 1541 | { |
---|
| 1542 | // get pointers on NIC_TX[channel] chdev |
---|
| 1543 | xptr_t tx_chdev_xp = chdev_dir.nic_tx[nic_channel]; |
---|
| 1544 | chdev_t * tx_chdev_ptr = GET_PTR( tx_chdev_xp ); |
---|
| 1545 | cxy_t tx_chdev_cxy = GET_CXY( tx_chdev_xp ); |
---|
| 1546 | |
---|
| 1547 | // get pointers on NIC_TX[channel] server thread |
---|
| 1548 | tx_server_ptr = hal_remote_lpt( XPTR( tx_chdev_cxy , &tx_chdev_ptr->server )); |
---|
| 1549 | tx_server_xp = XPTR( tx_chdev_cxy , tx_server_ptr ); |
---|
| 1550 | |
---|
| 1551 | // register command arguments in socket descriptor for a SYN segment |
---|
| 1552 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_cmd ), CMD_TX_CONNECT ); |
---|
| 1553 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->tx_client ), client_xp ); |
---|
| 1554 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_valid ), true ); |
---|
| 1555 | |
---|
| 1556 | // unblock NIC_TX server thread |
---|
| 1557 | thread_unblock( tx_server_xp , THREAD_BLOCKED_CLIENT ); |
---|
| 1558 | |
---|
[669] | 1559 | // start retransmission timer |
---|
[683] | 1560 | alarm_start( client_xp, |
---|
| 1561 | hal_get_cycles() + CONFIG_SOCK_RETRY_TIMEOUT, |
---|
| 1562 | &socket_alarm_handler, |
---|
| 1563 | socket_xp ); |
---|
[669] | 1564 | |
---|
[662] | 1565 | #if DEBUG_SOCKET_CONNECT |
---|
| 1566 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1567 | if( DEBUG_SOCKET_CONNECT < cycle ) |
---|
| 1568 | printk("\n[%s] thread[%x,%x] socket[%x,%d] blocks on <IO> waiting connexion / cycle %d \n", |
---|
| 1569 | __FUNCTION__, pid, trdid, pid, fdid, cycle ); |
---|
| 1570 | #endif |
---|
| 1571 | // block itself and deschedule |
---|
| 1572 | thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_IO ); |
---|
| 1573 | sched_yield( "waiting connection" ); |
---|
| 1574 | |
---|
| 1575 | #if DEBUG_SOCKET_CONNECT |
---|
| 1576 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1577 | if( DEBUG_SOCKET_CONNECT < cycle ) |
---|
| 1578 | printk("\n[%s] thread[%x,%x] socket[%x,%d] / resumes / cycle %d \n", |
---|
| 1579 | __FUNCTION__, pid, trdid, pid, fdid, cycle ); |
---|
| 1580 | #endif |
---|
| 1581 | |
---|
[683] | 1582 | // stop retransmission timer in thread descriptor |
---|
| 1583 | alarm_stop( client_xp ); |
---|
[669] | 1584 | |
---|
[662] | 1585 | // get socket state, tx_valid and tx_sts |
---|
| 1586 | cmd_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_valid )); |
---|
| 1587 | cmd_status = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_sts )); |
---|
| 1588 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state )); |
---|
| 1589 | |
---|
[669] | 1590 | assert( __FUNCTION__, (((socket_state == TCP_STATE_ESTAB) || (cmd_status != CMD_STS_SUCCESS)) |
---|
[662] | 1591 | && (cmd_valid == false)), |
---|
| 1592 | "illegal socket state when client thread resumes after TX_CONNECT" ); |
---|
| 1593 | |
---|
| 1594 | // reset socket.tx_client |
---|
[683] | 1595 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->tx_client ) , XPTR_NULL ); |
---|
[662] | 1596 | |
---|
| 1597 | if( cmd_status != CMD_STS_SUCCESS ) |
---|
| 1598 | { |
---|
[683] | 1599 | |
---|
| 1600 | #if DEBUG_SOCKET_ERROR |
---|
| 1601 | printk("\n[ERROR] in %s reported by server / socket[%x,%d] / thread[%x,%x] / cycle %d\n", |
---|
| 1602 | __FUNCTION__, pid, fdid, pid, trdid, cycle ); |
---|
| 1603 | #endif |
---|
[662] | 1604 | return -1; |
---|
| 1605 | } |
---|
| 1606 | else |
---|
| 1607 | { |
---|
| 1608 | |
---|
| 1609 | #if DEBUG_SOCKET_CONNECT |
---|
| 1610 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1611 | if( DEBUG_SOCKET_CONNECT < cycle ) |
---|
| 1612 | printk("\n[%s] thread[%x,%x] exit for socket[%x,%d] / %s / cycle %d \n", |
---|
| 1613 | __FUNCTION__, pid, trdid, pid, fdid, socket_state_str(socket_state),cycle ); |
---|
| 1614 | #endif |
---|
| 1615 | return 0; |
---|
| 1616 | } |
---|
| 1617 | } // end TCP |
---|
| 1618 | |
---|
| 1619 | } // end socket_connect() |
---|
| 1620 | |
---|
| 1621 | /////////////////////////////////// |
---|
| 1622 | int socket_close( xptr_t file_xp, |
---|
| 1623 | uint32_t fdid ) |
---|
| 1624 | { |
---|
| 1625 | uint32_t socket_type; |
---|
| 1626 | uint32_t socket_state; |
---|
| 1627 | uint32_t nic_channel; |
---|
| 1628 | uint32_t cmd_status; // socket.tx_sts |
---|
| 1629 | bool_t cmd_valid; // socket.tx_valid |
---|
| 1630 | thread_t * tx_server_ptr; // local pointer on NIC_TX server thread |
---|
| 1631 | xptr_t tx_server_xp; // extended pointer on NIC_TX server thread |
---|
| 1632 | xptr_t socket_lock_xp; // extended pointer on socket lock |
---|
| 1633 | |
---|
| 1634 | thread_t * this = CURRENT_THREAD; |
---|
| 1635 | xptr_t client_xp = XPTR( local_cxy , this ); |
---|
[668] | 1636 | pid_t pid = this->process->pid; |
---|
| 1637 | trdid_t trdid = this->trdid; |
---|
[662] | 1638 | |
---|
[683] | 1639 | #if DEBUG_SOCKET_CLOSE || DEBUG_SOCKET_ERROR |
---|
| 1640 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 1641 | #endif |
---|
| 1642 | |
---|
[669] | 1643 | // get pointers on socket descriptor |
---|
| 1644 | cxy_t file_cxy = GET_CXY( file_xp ); |
---|
| 1645 | vfs_file_t * file_ptr = GET_PTR( file_xp ); |
---|
[662] | 1646 | socket_t * socket_ptr = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
[669] | 1647 | xptr_t socket_xp = XPTR( file_cxy , socket_ptr ); |
---|
[662] | 1648 | |
---|
[669] | 1649 | assert( __FUNCTION__, (hal_remote_l32( XPTR( file_cxy , &socket_ptr->fdid )) == fdid), |
---|
[662] | 1650 | "unconsistent file_xp & fdid arguments"); |
---|
| 1651 | |
---|
| 1652 | #if DEBUG_SOCKET_CLOSE |
---|
| 1653 | if (DEBUG_SOCKET_CLOSE < cycle ) |
---|
| 1654 | printk("\n[%s] thread[%x,%x] enters for socket[%x,%d] / cycle %d\n", |
---|
[668] | 1655 | __FUNCTION__, pid, trdid, pid, fdid, cycle ); |
---|
[662] | 1656 | #endif |
---|
| 1657 | |
---|
| 1658 | // build extended pointer on lock protecting socket |
---|
| 1659 | socket_lock_xp = XPTR( file_cxy , &socket_ptr->lock ); |
---|
| 1660 | |
---|
| 1661 | // take socket lock |
---|
| 1662 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 1663 | |
---|
| 1664 | // check no previous TX command |
---|
| 1665 | if( (hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_valid )) == true) || |
---|
| 1666 | (hal_remote_l64( XPTR( file_cxy , &socket_ptr->tx_client)) != XPTR_NULL) ) |
---|
| 1667 | { |
---|
[683] | 1668 | |
---|
| 1669 | #if DEBUG_SOCKET_ERROR |
---|
| 1670 | printk("\n[ERROR] in %s : previous TX cmd on socket[%x,%d] / thread[%x,%x] / cycle %d\n", |
---|
| 1671 | __FUNCTION__, pid, fdid, pid, trdid, cycle ); |
---|
| 1672 | #endif |
---|
[662] | 1673 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1674 | return -1; |
---|
| 1675 | } |
---|
| 1676 | |
---|
| 1677 | // get relevant socket infos |
---|
| 1678 | socket_type = hal_remote_l32( XPTR( file_cxy , &socket_ptr->type )); |
---|
| 1679 | nic_channel = hal_remote_l32( XPTR( file_cxy , &socket_ptr->nic_channel )); |
---|
| 1680 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state )); |
---|
| 1681 | |
---|
| 1682 | |
---|
| 1683 | // the actual close mechanism depends on socket type and state: |
---|
| 1684 | // UDP or TCP not connected : client thread directly destroy the socket descriptor |
---|
| 1685 | // TCP connected : client thread request TX server thread to make the TCP close handshake |
---|
| 1686 | |
---|
| 1687 | if( socket_type == SOCK_DGRAM ) // UDP |
---|
| 1688 | { |
---|
| 1689 | |
---|
| 1690 | #if DEBUG_SOCKET_CLOSE |
---|
| 1691 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1692 | if( cycle > DEBUG_DEV_NIC_TX ) |
---|
[669] | 1693 | printk("\n[%s] thread[%x,%x] socket[%x,%d] %s => directly destroy socket / cycle %d\n", |
---|
[668] | 1694 | __FUNCTION__, pid, trdid, pid, fdid, socket_state_str( socket_state ), cycle ); |
---|
[662] | 1695 | #endif |
---|
| 1696 | // directly destroy socket |
---|
| 1697 | socket_destroy( file_xp ); |
---|
| 1698 | |
---|
| 1699 | return 0; |
---|
| 1700 | } |
---|
| 1701 | else if( (socket_state == TCP_STATE_BOUND) || |
---|
| 1702 | (socket_state == TCP_STATE_LISTEN) || |
---|
| 1703 | (socket_state == TCP_STATE_SYN_SENT) ) // TCP not connected |
---|
| 1704 | { |
---|
| 1705 | |
---|
| 1706 | #if DEBUG_SOCKET_CLOSE |
---|
| 1707 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1708 | if( cycle > DEBUG_DEV_NIC_TX ) |
---|
[669] | 1709 | printk("\n[%s] thread[%x,%x] socket[%x,%d] %s => directly destroy socket / cycle %d\n", |
---|
[668] | 1710 | __FUNCTION__, pid, trdid, pid, fdid, socket_state_str( socket_state ), cycle ); |
---|
[662] | 1711 | #endif |
---|
| 1712 | // directly destroy socket |
---|
| 1713 | socket_destroy( file_xp ); |
---|
| 1714 | |
---|
| 1715 | return 0; |
---|
| 1716 | } |
---|
| 1717 | else // TCP connected |
---|
| 1718 | { |
---|
| 1719 | // get pointers on NIC_TX[index] chdev |
---|
| 1720 | xptr_t tx_chdev_xp = chdev_dir.nic_tx[nic_channel]; |
---|
| 1721 | chdev_t * tx_chdev_ptr = GET_PTR( tx_chdev_xp ); |
---|
| 1722 | cxy_t tx_chdev_cxy = GET_CXY( tx_chdev_xp ); |
---|
| 1723 | |
---|
| 1724 | // get pointers on NIC_TX[channel] server thread |
---|
| 1725 | tx_server_ptr = hal_remote_lpt( XPTR( tx_chdev_cxy , &tx_chdev_ptr->server )); |
---|
| 1726 | tx_server_xp = XPTR( tx_chdev_cxy , tx_server_ptr ); |
---|
| 1727 | |
---|
| 1728 | // register command arguments in socket descriptor |
---|
| 1729 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_cmd ), CMD_TX_CLOSE ); |
---|
| 1730 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->tx_client ), client_xp ); |
---|
| 1731 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_valid ), true ); |
---|
| 1732 | |
---|
| 1733 | // release socket lock |
---|
| 1734 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1735 | |
---|
[669] | 1736 | // unblock NIC_TX server thread |
---|
| 1737 | thread_unblock( tx_server_xp , THREAD_BLOCKED_CLIENT ); |
---|
| 1738 | |
---|
| 1739 | // start retransmission timer |
---|
[683] | 1740 | alarm_start( client_xp, |
---|
| 1741 | hal_get_cycles() + CONFIG_SOCK_RETRY_TIMEOUT, |
---|
| 1742 | &socket_alarm_handler, |
---|
| 1743 | socket_xp ); |
---|
[669] | 1744 | |
---|
[662] | 1745 | #if DEBUG_SOCKET_CLOSE |
---|
| 1746 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1747 | if( DEBUG_SOCKET_CLOSE < cycle ) |
---|
[669] | 1748 | printk("\n[%s] thread[%x,%x] socket[%x,%d] %s => blocks on <IO> waiting close / cycle %d \n", |
---|
| 1749 | __FUNCTION__, pid, trdid, pid, fdid, socket_state_str( socket_state ), cycle ); |
---|
[662] | 1750 | #endif |
---|
[669] | 1751 | // client thread block itself and deschedule |
---|
[662] | 1752 | thread_block( client_xp , THREAD_BLOCKED_IO ); |
---|
| 1753 | sched_yield( "blocked in close" ); |
---|
| 1754 | |
---|
| 1755 | #if DEBUG_SOCKET_CLOSE |
---|
| 1756 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1757 | if( DEBUG_SOCKET_CLOSE < cycle ) |
---|
| 1758 | printk("\n[%s] thread[%x,%x] socket[%x,%d] / resumes / cycle %d \n", |
---|
[668] | 1759 | __FUNCTION__, pid, trdid, pid, fdid, cycle ); |
---|
[662] | 1760 | #endif |
---|
[683] | 1761 | // stop retransmission timer in thread descriptor |
---|
| 1762 | alarm_stop( client_xp ); |
---|
[669] | 1763 | |
---|
[662] | 1764 | // take socket lock |
---|
| 1765 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 1766 | |
---|
| 1767 | // get socket state & command status |
---|
| 1768 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state ) ); |
---|
| 1769 | cmd_status = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_sts) ); |
---|
| 1770 | cmd_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_valid ) ); |
---|
| 1771 | |
---|
[683] | 1772 | assert( __FUNCTION__, |
---|
| 1773 | (((socket_state == TCP_STATE_CLOSED) || (cmd_status != CMD_STS_SUCCESS)) && (cmd_valid == false)), |
---|
| 1774 | " socket_state = %s / cmd_status = %d / cmd_valid = %d", |
---|
[662] | 1775 | socket_state_str(socket_state), cmd_status, cmd_valid ); |
---|
| 1776 | |
---|
| 1777 | // reset socket.tx_client |
---|
[683] | 1778 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->tx_client ) , XPTR_NULL ); |
---|
[662] | 1779 | |
---|
| 1780 | if( cmd_status != CMD_STS_SUCCESS ) // error reported |
---|
| 1781 | { |
---|
[683] | 1782 | |
---|
| 1783 | #if DEBUG_SOCKET_ERROR |
---|
| 1784 | printk("\n[ERROR] in %s for command TX_CLOSE / socket[%x,%d] / thread[%x,%x] / cycle %d\n", |
---|
| 1785 | __FUNCTION__, pid, fdid, pid, this->trdid, cycle ); |
---|
| 1786 | #endif |
---|
[662] | 1787 | return -1; |
---|
| 1788 | } |
---|
| 1789 | else // success |
---|
| 1790 | { |
---|
| 1791 | |
---|
| 1792 | #if DEBUG_SOCKET_CLOSE |
---|
| 1793 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1794 | if( DEBUG_SOCKET_CLOSE < cycle ) |
---|
| 1795 | printk("\n[%s] thread[%x,%x] socket[%x,%d] / destroy socket / cycle %d\n", |
---|
[668] | 1796 | __FUNCTION__, pid, trdid, pid, fdid, socket_state_str(socket_state) , cycle ); |
---|
[662] | 1797 | #endif |
---|
| 1798 | // destroy socket |
---|
| 1799 | socket_destroy( file_xp ); |
---|
| 1800 | |
---|
| 1801 | return 0; |
---|
| 1802 | } |
---|
| 1803 | } // end if TCP |
---|
| 1804 | } // end socket_close() |
---|
| 1805 | |
---|
| 1806 | //////////////////////////////////////////////////////////////////////////////////////// |
---|
[669] | 1807 | // This static function is called by the two functions socket_send() & socket_recv(). |
---|
[683] | 1808 | // It is used for both UDP and TCP sockets. |
---|
[662] | 1809 | //////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1810 | // @ is_send : send when true / receive when false. |
---|
| 1811 | // @ fdid : socket identifier. |
---|
| 1812 | // @ u_buf : pointer on user buffer in user space. |
---|
[683] | 1813 | // @ length : number of bytes in buffer. |
---|
[662] | 1814 | //////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1815 | // Implementation note : The behavior is different for SEND & RECV |
---|
| 1816 | // - For a SEND, the client thread checks that there is no TX command registered |
---|
| 1817 | // in the socket. It registers the command arguments in the socket descriptor |
---|
| 1818 | // (tx_client, tx_cmd, tx_buf, tx_len). Then the client thread unblocks the |
---|
| 1819 | // TX server thread from the BLOCKED_CLIENT condition, blocks itself on the |
---|
| 1820 | // BLOCKED_IO condition, and deschedules. It is unblocked by the TX server thread |
---|
| 1821 | // when the last byte has been sent (for UDP) or acknowledged (for TCP). |
---|
| 1822 | // When the client thread resumes, it reset the command in socket, and returns. |
---|
| 1823 | // - For a RECV, the client thread checks that there is no RX command registered |
---|
| 1824 | // in the socket. It registers itself in socket (rx_client). It checks the status |
---|
| 1825 | // of the receive buffer. It the rx_buf is empty, it blocks on the BLOCKED_IO |
---|
| 1826 | // condition, and deschedules. It is unblocked by the RX server thread when an UDP |
---|
| 1827 | // packet or TCP segment has been writen in the rx_buf. When it resumes, it moves |
---|
| 1828 | // the available data from the rx_buf to the user buffer, reset its registration |
---|
| 1829 | // in socket (reset the rx_buf for an UDP socket), and returns. |
---|
| 1830 | //////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1831 | int socket_move_data( bool_t is_send, |
---|
| 1832 | uint32_t fdid, |
---|
| 1833 | uint8_t * u_buf, |
---|
[669] | 1834 | uint32_t length ) |
---|
[662] | 1835 | { |
---|
[669] | 1836 | vfs_file_type_t file_type; // file descriptor type |
---|
| 1837 | xptr_t socket_xp; // extended pointer on socket descriptor |
---|
[662] | 1838 | socket_t * socket_ptr; // local pointer on socket descriptor |
---|
| 1839 | uint32_t socket_state; // current socket state |
---|
| 1840 | uint32_t socket_type; // socket type (UDP/TCP) |
---|
| 1841 | uint32_t nic_channel; // NIC channel for this socket |
---|
| 1842 | xptr_t socket_lock_xp; // extended pointer on socket lock |
---|
| 1843 | xptr_t file_xp; // extended pointer on file descriptor |
---|
| 1844 | vfs_file_t * file_ptr; |
---|
| 1845 | cxy_t file_cxy; |
---|
| 1846 | xptr_t chdev_xp; // extended pointer on NIC_TX[channel] chdev |
---|
| 1847 | chdev_t * chdev_ptr; |
---|
| 1848 | cxy_t chdev_cxy; |
---|
| 1849 | int32_t moved_bytes; // total number of moved bytes (fot return) |
---|
[683] | 1850 | xptr_t server_xp; // ext pointer on NIC_TX / NIC_RX thread |
---|
| 1851 | thread_t * server_ptr; // local pointer on NIC_TX / NIC_RX thread |
---|
| 1852 | uint8_t * tx_buf; // pointer on kernel buffer for TX transfer |
---|
| 1853 | bool_t cmd_valid; // RX or TX command from socket descriptor |
---|
| 1854 | uint32_t cmd_sts; // RX or TX command from socket descriptor |
---|
| 1855 | uint32_t tx_todo; // number of bytes still to send |
---|
| 1856 | xptr_t rx_buf_xp; // extended pointer on socket rx_buf |
---|
| 1857 | uint32_t rx_buf_sts; // current status of socket rx_buf |
---|
[662] | 1858 | |
---|
| 1859 | thread_t * this = CURRENT_THREAD; |
---|
| 1860 | process_t * process = this->process; |
---|
| 1861 | |
---|
[683] | 1862 | #if DEBUG_SOCKET_SEND || DEBUG_SOCKET_RECV || DEBUG_SOCKET_ERROR |
---|
| 1863 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 1864 | #endif |
---|
| 1865 | |
---|
| 1866 | #if DEBUG_SOCKET_SEND || DEBUG_SOCKET_RECV |
---|
| 1867 | if( is_send ) |
---|
| 1868 | printk("\n[%s] thread[%x,%x] socket[%x,%d] enter : SEND / buf %x / length %d / cycle %d\n", |
---|
| 1869 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, u_buf, length, cycle ); |
---|
| 1870 | else |
---|
| 1871 | printk("\n[%s] thread[%x,%x] socket[%x,%d] enter : RECV / buf %x / length %d / cycle %d\n", |
---|
| 1872 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, u_buf, length, cycle ); |
---|
| 1873 | #endif |
---|
| 1874 | |
---|
[662] | 1875 | // build extended pointer on client thread |
---|
| 1876 | xptr_t client_xp = XPTR( local_cxy , this ); |
---|
| 1877 | |
---|
| 1878 | // get pointers on file descriptor identifying the socket |
---|
| 1879 | file_xp = process_fd_get_xptr_from_local( process , fdid ); |
---|
| 1880 | file_ptr = GET_PTR( file_xp ); |
---|
| 1881 | file_cxy = GET_CXY( file_xp ); |
---|
| 1882 | |
---|
| 1883 | if( file_xp == XPTR_NULL ) |
---|
| 1884 | { |
---|
[683] | 1885 | |
---|
| 1886 | #if DEBUG_SOCKET_ERROR |
---|
| 1887 | printk("\n[ERROR] in %s : undefined fdid %d / thread%x,%x] / cycle %d\n", |
---|
| 1888 | __FUNCTION__, fdid , process->pid, this->trdid, cycle ); |
---|
| 1889 | #endif |
---|
[662] | 1890 | return -1; |
---|
| 1891 | } |
---|
| 1892 | |
---|
| 1893 | // get file type and socket pointer |
---|
| 1894 | file_type = hal_remote_l32( XPTR( file_cxy , &file_ptr->type ) ); |
---|
| 1895 | |
---|
[669] | 1896 | // get pointers on socket |
---|
[662] | 1897 | socket_ptr = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
[669] | 1898 | socket_xp = XPTR( file_cxy , socket_ptr ); |
---|
[662] | 1899 | |
---|
| 1900 | // check file descriptor type |
---|
[669] | 1901 | if( file_type != FILE_TYPE_SOCK ) |
---|
[662] | 1902 | { |
---|
[683] | 1903 | |
---|
| 1904 | #if DEBUG_SOCKET_ERROR |
---|
| 1905 | printk("\n[ERROR] in %s : illegal file type thread[%x,%x] / cycle %d\n", |
---|
| 1906 | __FUNCTION__, process->pid, this->trdid, cycle ); |
---|
| 1907 | #endif |
---|
[662] | 1908 | return -1; |
---|
| 1909 | } |
---|
| 1910 | |
---|
| 1911 | // build extended pointer on lock protecting socket |
---|
| 1912 | socket_lock_xp = XPTR( file_cxy , &socket_ptr->lock ); |
---|
| 1913 | |
---|
| 1914 | // take the socket lock |
---|
| 1915 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 1916 | |
---|
| 1917 | // get socket type, state, and channel |
---|
| 1918 | socket_type = hal_remote_l32( XPTR( file_cxy , &socket_ptr->type )); |
---|
| 1919 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state )); |
---|
| 1920 | nic_channel = hal_remote_l32( XPTR( file_cxy , &socket_ptr->nic_channel )); |
---|
| 1921 | |
---|
[683] | 1922 | ////////////////////////////////////////////////////// |
---|
[669] | 1923 | if( is_send ) // SEND command |
---|
[662] | 1924 | { |
---|
| 1925 | |
---|
| 1926 | #if DEBUG_SOCKET_SEND |
---|
[683] | 1927 | cycle = (uint32_t)hal_get_cycles(); |
---|
[662] | 1928 | if (DEBUG_SOCKET_SEND < cycle ) |
---|
[683] | 1929 | printk("\n[%s] thread[%x,%x] / socket[%x,%d] get SEND / length %d / cycle %d\n", |
---|
[662] | 1930 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, length, cycle ); |
---|
| 1931 | #endif |
---|
[683] | 1932 | |
---|
[662] | 1933 | // check no previous TX command |
---|
[683] | 1934 | if( hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_valid )) == true ) |
---|
[662] | 1935 | { |
---|
[683] | 1936 | |
---|
| 1937 | #if DEBUG_SOCKET_ERROR |
---|
| 1938 | printk("\n[ERROR] in %s : previous TX command / socket[%x,%d] / thread[%x,%x] / cycle %d\n", |
---|
| 1939 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid, cycle ); |
---|
| 1940 | #endif |
---|
[662] | 1941 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1942 | return -1; |
---|
| 1943 | } |
---|
| 1944 | |
---|
[683] | 1945 | // get tx_buf pointer from socket pointer |
---|
| 1946 | tx_buf = (uint8_t*)hal_remote_lpt( XPTR( file_cxy , &socket_ptr->tx_buf )); |
---|
[662] | 1947 | |
---|
[683] | 1948 | // copy data from user u_buf to kernel socket tx_buf |
---|
| 1949 | hal_copy_from_uspace( XPTR( file_cxy , tx_buf ), |
---|
[662] | 1950 | u_buf, |
---|
| 1951 | length ); |
---|
[683] | 1952 | #if DEBUG_SOCKET_SEND |
---|
| 1953 | if (DEBUG_SOCKET_SEND < cycle ) |
---|
| 1954 | printk("\n[%s] thread[%x,%x] / socket[%x,%d] copied %d bytes to tx_buf (%x,%x)\n", |
---|
| 1955 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, length, file_cxy, tx_buf ); |
---|
| 1956 | putb("tx_buf : 16 first data bytes" , tx_buf , 16 ); |
---|
| 1957 | #endif |
---|
[662] | 1958 | |
---|
| 1959 | // register command in socket descriptor |
---|
| 1960 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->tx_client ) , client_xp ); |
---|
| 1961 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_cmd ) , CMD_TX_SEND ); |
---|
| 1962 | hal_remote_spt( XPTR( file_cxy , &socket_ptr->tx_buf ) , tx_buf ); |
---|
| 1963 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_len ) , length ); |
---|
| 1964 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_todo ) , length ); |
---|
[683] | 1965 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_ack ) , 0 ); |
---|
[662] | 1966 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_valid ) , true ); |
---|
| 1967 | |
---|
| 1968 | // release socket lock |
---|
| 1969 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1970 | |
---|
| 1971 | // get pointers on relevant chdev |
---|
| 1972 | chdev_xp = chdev_dir.nic_tx[nic_channel]; |
---|
| 1973 | chdev_ptr = GET_PTR( chdev_xp ); |
---|
| 1974 | chdev_cxy = GET_CXY( chdev_xp ); |
---|
| 1975 | |
---|
| 1976 | // get pointers on NIC_TX[channel] server thread |
---|
| 1977 | server_ptr = hal_remote_lpt( XPTR( chdev_cxy , &chdev_ptr->server )); |
---|
| 1978 | server_xp = XPTR( chdev_cxy , server_ptr ); |
---|
| 1979 | |
---|
| 1980 | // unblocks the NIC_TX server thread |
---|
| 1981 | thread_unblock( server_xp , THREAD_BLOCKED_CLIENT ); |
---|
| 1982 | |
---|
[683] | 1983 | // start retransmission timer for TCP socket |
---|
| 1984 | if( socket_type == SOCK_STREAM ) |
---|
| 1985 | { |
---|
| 1986 | alarm_start( client_xp, |
---|
| 1987 | hal_get_cycles() + CONFIG_SOCK_RETRY_TIMEOUT, |
---|
| 1988 | &socket_alarm_handler, |
---|
| 1989 | socket_xp ); |
---|
| 1990 | } |
---|
[669] | 1991 | |
---|
[662] | 1992 | #if DEBUG_SOCKET_SEND |
---|
| 1993 | if( DEBUG_SOCKET_SEND < cycle ) |
---|
[683] | 1994 | printk("\n[%s] thread[%x,%x] / socket[%x,%d] registers SEND => blocks on <IO>\n", |
---|
| 1995 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid ); |
---|
[662] | 1996 | #endif |
---|
| 1997 | // client thread blocks itself and deschedules |
---|
| 1998 | thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_IO ); |
---|
| 1999 | sched_yield( "blocked in nic_io" ); |
---|
| 2000 | |
---|
| 2001 | #if DEBUG_SOCKET_SEND |
---|
| 2002 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 2003 | if( DEBUG_SOCKET_SEND < cycle ) |
---|
[683] | 2004 | printk("\n[%s] thread[%x,%x] / socket[%x,%d] resumes for SEND / cycle %d\n", |
---|
[662] | 2005 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 2006 | #endif |
---|
[683] | 2007 | // stop retransmission timer for TCP socket |
---|
| 2008 | if( socket_type == SOCK_STREAM ) |
---|
| 2009 | { |
---|
| 2010 | alarm_stop( client_xp ); |
---|
| 2011 | } |
---|
[669] | 2012 | |
---|
[683] | 2013 | // take socket lock |
---|
[662] | 2014 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 2015 | |
---|
| 2016 | // get tx_valid, tx_todo, and tx_sts |
---|
| 2017 | tx_todo = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_todo )); |
---|
| 2018 | cmd_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_valid )); |
---|
[683] | 2019 | cmd_sts = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_sts )); |
---|
[662] | 2020 | |
---|
| 2021 | // reset tx_client in socket descriptor |
---|
| 2022 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->tx_client ) , XPTR_NULL ); |
---|
| 2023 | |
---|
| 2024 | // release socket lock |
---|
| 2025 | remote_queuelock_release( socket_lock_xp ); |
---|
| 2026 | |
---|
| 2027 | // check SEND command completed when TX client thread resumes |
---|
[683] | 2028 | assert( __FUNCTION__, |
---|
| 2029 | (((tx_todo == 0) || (cmd_sts != CMD_STS_SUCCESS)) && (cmd_valid == false)), |
---|
| 2030 | "client thread resumes from SEND / bad state : tx_todo %d / tx_sts %d / tx_valid %d", |
---|
| 2031 | tx_todo, cmd_sts, cmd_valid ); |
---|
[662] | 2032 | |
---|
[683] | 2033 | if( cmd_sts != CMD_STS_SUCCESS ) |
---|
[662] | 2034 | { |
---|
| 2035 | |
---|
[683] | 2036 | #if DEBUG_SOCKET_ERROR |
---|
| 2037 | printk("\n[ERROR] in %s : reported for SEND / socket[%x,%d] / thread[%x,%x] / cycle %d\n", |
---|
| 2038 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid, cycle ); |
---|
[662] | 2039 | #endif |
---|
| 2040 | return -1; |
---|
| 2041 | } |
---|
| 2042 | else |
---|
| 2043 | { |
---|
| 2044 | |
---|
| 2045 | #if DEBUG_SOCKET_SEND |
---|
| 2046 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 2047 | if (DEBUG_SOCKET_SEND < cycle ) |
---|
[683] | 2048 | printk("\n[%s] thread[%x,%x] SEND success / socket[%x,%d] / bytes %d / cycle %d\n", |
---|
[662] | 2049 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, length, cycle ); |
---|
| 2050 | #endif |
---|
| 2051 | return length; |
---|
| 2052 | } |
---|
| 2053 | |
---|
[669] | 2054 | } // end SEND command |
---|
[662] | 2055 | |
---|
[683] | 2056 | ///////////////////////////////////////////////////////////// |
---|
| 2057 | else // RECV command |
---|
[662] | 2058 | { |
---|
| 2059 | |
---|
| 2060 | #if DEBUG_SOCKET_RECV |
---|
[683] | 2061 | if (DEBUG_SOCKET_RECV < cycle ) |
---|
| 2062 | printk("\n[%s] thread[%x,%x] / socket[%x,%d] get RECV / length %d / cycle %d\n", |
---|
[662] | 2063 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, length, cycle ); |
---|
| 2064 | #endif |
---|
| 2065 | // check no previous RX command |
---|
[683] | 2066 | if( hal_remote_l32( XPTR( file_cxy , &socket_ptr->rx_valid )) == true ) |
---|
[662] | 2067 | { |
---|
[683] | 2068 | |
---|
| 2069 | #if DEBUG_SOCKET_ERROR |
---|
| 2070 | printk("\n[ERROR] in %s : previous RX command on socket[%x,%d] / thread[%x,%x] / cycle %d\n", |
---|
| 2071 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid, cycle ); |
---|
| 2072 | #endif |
---|
[662] | 2073 | remote_queuelock_release( socket_lock_xp ); |
---|
| 2074 | return -1; |
---|
| 2075 | } |
---|
| 2076 | |
---|
| 2077 | // return EOF for a TCP socket not in ESTAB state |
---|
| 2078 | if( (socket_type == SOCK_STREAM ) && (socket_state != TCP_STATE_ESTAB) ) |
---|
| 2079 | { |
---|
| 2080 | // release socket lock |
---|
| 2081 | remote_queuelock_release( socket_lock_xp ); |
---|
| 2082 | |
---|
| 2083 | #if DEBUG_SOCKET_RECV |
---|
[683] | 2084 | cycle = (uint32_t)hal_get_cycles(); |
---|
[662] | 2085 | if( DEBUG_SOCKET_RECV < cycle ) |
---|
[683] | 2086 | printk("\n[%s] thread[%x,%x] / socket[%x,%d] TCP connection closed / cycle %d\n", |
---|
[662] | 2087 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 2088 | #endif |
---|
| 2089 | return 0; |
---|
| 2090 | } |
---|
| 2091 | |
---|
[683] | 2092 | // build extended pointer on socket rx_buf |
---|
| 2093 | rx_buf_xp = XPTR( file_cxy , &socket_ptr->rx_buf ); |
---|
[662] | 2094 | |
---|
[683] | 2095 | // get socket rx_buf status |
---|
| 2096 | rx_buf_sts = remote_buf_status( rx_buf_xp ); |
---|
| 2097 | |
---|
| 2098 | // register RECV command and deschedule when rx_buf empty |
---|
| 2099 | if( rx_buf_sts == 0 ) |
---|
[662] | 2100 | { |
---|
| 2101 | // registers RX_RECV command in socket descriptor |
---|
| 2102 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->rx_cmd ) , CMD_RX_RECV ); |
---|
| 2103 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->rx_client ) , client_xp ); |
---|
| 2104 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->rx_valid ) , true ); |
---|
| 2105 | |
---|
| 2106 | // release socket lock |
---|
| 2107 | remote_queuelock_release( socket_lock_xp ); |
---|
| 2108 | |
---|
| 2109 | #if DEBUG_SOCKET_RECV |
---|
| 2110 | if( DEBUG_SOCKET_RECV < cycle ) |
---|
[683] | 2111 | printk("\n[%s] thread[%x,%x] socket[%x,%d] for RECV : rx_buf empty => blocks on <IO>\n", |
---|
| 2112 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid ); |
---|
[662] | 2113 | #endif |
---|
| 2114 | // client thread blocks itself and deschedules |
---|
| 2115 | thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_IO ); |
---|
| 2116 | sched_yield( "blocked in nic_io" ); |
---|
| 2117 | |
---|
| 2118 | #if DEBUG_SOCKET_RECV |
---|
| 2119 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 2120 | if( DEBUG_SOCKET_RECV < cycle ) |
---|
[683] | 2121 | printk("\n[%s] thread[%x,%x] socket[%x,%d] for RECV : resumes / cycle %d\n", |
---|
[662] | 2122 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 2123 | #endif |
---|
| 2124 | // take socket lock |
---|
| 2125 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 2126 | |
---|
[683] | 2127 | // get command status, command valid, and rx_buf status |
---|
[662] | 2128 | cmd_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->rx_valid )); |
---|
[683] | 2129 | cmd_sts = hal_remote_l32( XPTR( file_cxy , &socket_ptr->rx_sts )); |
---|
| 2130 | rx_buf_sts = remote_buf_status( rx_buf_xp ); |
---|
[662] | 2131 | |
---|
[683] | 2132 | assert( __FUNCTION__, (cmd_valid == false), |
---|
| 2133 | "client thread resumes from RECV but rx_valid is true" ); |
---|
[662] | 2134 | |
---|
[683] | 2135 | if( cmd_sts == CMD_STS_EOF ) // EOF reported by RX server |
---|
[662] | 2136 | { |
---|
| 2137 | |
---|
| 2138 | #if DEBUG_SOCKET_RECV |
---|
| 2139 | if( DEBUG_SOCKET_RECV < cycle ) |
---|
[683] | 2140 | printk("\n[%s] EOF received for socket[%x,%d] / thread[%x,%x]\n", |
---|
[662] | 2141 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid ); |
---|
| 2142 | #endif |
---|
[683] | 2143 | // release socket lock |
---|
| 2144 | remote_queuelock_release( socket_lock_xp ); |
---|
| 2145 | |
---|
[662] | 2146 | return 0; |
---|
| 2147 | } |
---|
[683] | 2148 | else if( cmd_sts != CMD_STS_SUCCESS ) // error reported by RX server |
---|
[662] | 2149 | { |
---|
| 2150 | |
---|
[683] | 2151 | #if DEBUG_SOCKET_ERROR |
---|
| 2152 | printk("\n[ERROR] in %s : rx_server for socket[%x,%d] / thread[%x,%x] / cycle %d\n", |
---|
| 2153 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid, cycle ); |
---|
[662] | 2154 | #endif |
---|
[683] | 2155 | // release socket lock |
---|
| 2156 | remote_queuelock_release( socket_lock_xp ); |
---|
| 2157 | |
---|
[662] | 2158 | return -1; |
---|
| 2159 | } |
---|
[683] | 2160 | else if( rx_buf_sts == 0 ) // annormally empty rx_buf |
---|
| 2161 | { |
---|
[662] | 2162 | |
---|
[683] | 2163 | #if DEBUG_SOCKET_ERROR |
---|
| 2164 | printk("\n[ERROR] in %s : rx_buf empty for socket[%x,%d] / thread[%x,%x] / cycle %d\n", |
---|
| 2165 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid, cycle ); |
---|
| 2166 | #endif |
---|
| 2167 | // release socket lock |
---|
| 2168 | remote_queuelock_release( socket_lock_xp ); |
---|
| 2169 | |
---|
| 2170 | return -1; |
---|
| 2171 | } |
---|
[662] | 2172 | } |
---|
| 2173 | |
---|
| 2174 | // number of bytes extracted from rx_buf cannot be larger than u_buf size |
---|
[683] | 2175 | moved_bytes = ( length < rx_buf_sts ) ? length : rx_buf_sts; |
---|
[662] | 2176 | |
---|
| 2177 | // move data from kernel rx_buf to user u_buf |
---|
| 2178 | remote_buf_get_to_user( rx_buf_xp, |
---|
| 2179 | u_buf, |
---|
| 2180 | moved_bytes ); |
---|
[683] | 2181 | #if DEBUG_SOCKET_RECV |
---|
[662] | 2182 | cycle = (uint32_t)hal_get_cycles(); |
---|
[683] | 2183 | if (DEBUG_SOCKET_RECV < cycle ) |
---|
| 2184 | printk("\n[%s] thread[%x,%x] : RECV success / socket[%x,%d] / bytes %d / cycle %d\n", |
---|
[662] | 2185 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, moved_bytes, cycle ); |
---|
| 2186 | #endif |
---|
[683] | 2187 | // release socket lock |
---|
| 2188 | remote_queuelock_release( socket_lock_xp ); |
---|
| 2189 | |
---|
[662] | 2190 | return moved_bytes; |
---|
| 2191 | |
---|
[669] | 2192 | } // end RECV command |
---|
[662] | 2193 | } // end socket_move_data() |
---|
| 2194 | |
---|
| 2195 | /////////////////////////////////// |
---|
| 2196 | int socket_send( uint32_t fdid, |
---|
| 2197 | uint8_t * u_buf, |
---|
| 2198 | uint32_t length ) |
---|
| 2199 | { |
---|
[669] | 2200 | return socket_move_data( true, // SEND |
---|
| 2201 | fdid, |
---|
| 2202 | u_buf, |
---|
| 2203 | length ); |
---|
[662] | 2204 | } // end socket_send() |
---|
| 2205 | |
---|
| 2206 | /////////////////////////////////// |
---|
| 2207 | int socket_recv( uint32_t fdid, |
---|
| 2208 | uint8_t * u_buf, |
---|
| 2209 | uint32_t length ) |
---|
| 2210 | { |
---|
[669] | 2211 | return socket_move_data( false, // RECV |
---|
| 2212 | fdid, |
---|
| 2213 | u_buf, |
---|
| 2214 | length ); |
---|
[662] | 2215 | } // end socket_recv() |
---|
| 2216 | |
---|
[683] | 2217 | //////////////////////////////////// |
---|
| 2218 | int socket_sendto( uint32_t fdid, |
---|
| 2219 | uint8_t * u_buf, |
---|
| 2220 | uint32_t length, |
---|
| 2221 | uint32_t remote_ip, |
---|
| 2222 | uint16_t remote_port ) |
---|
| 2223 | { |
---|
| 2224 | printk("\n[ERROR] in %s : this function is not implemented yet\n", |
---|
| 2225 | __FUNCTION__, fdid, u_buf, length, remote_ip, remote_port ); |
---|
| 2226 | return -1; |
---|
| 2227 | |
---|
| 2228 | } // end socket_sendto() |
---|
| 2229 | |
---|
| 2230 | ////////////////////////////////////// |
---|
| 2231 | int socket_recvfrom( uint32_t fdid, |
---|
| 2232 | uint8_t * u_buf, |
---|
| 2233 | uint32_t length, |
---|
| 2234 | uint32_t remote_ip, |
---|
| 2235 | uint16_t remote_port ) |
---|
| 2236 | { |
---|
| 2237 | printk("\n[ERROR] in %s : this function is not implemented yet\n", |
---|
| 2238 | __FUNCTION__, fdid, u_buf, length, remote_ip, remote_port ); |
---|
| 2239 | return -1; |
---|
| 2240 | |
---|
| 2241 | } // end socket_recvfrom() |
---|
| 2242 | |
---|
[662] | 2243 | //////////////////////////////////////////// |
---|
| 2244 | void socket_display( xptr_t socket_xp, |
---|
[683] | 2245 | const char * func_str, |
---|
| 2246 | const char * string ) |
---|
[662] | 2247 | { |
---|
[683] | 2248 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 2249 | |
---|
[662] | 2250 | socket_t * socket = GET_PTR( socket_xp ); |
---|
| 2251 | cxy_t cxy = GET_CXY( socket_xp ); |
---|
| 2252 | |
---|
| 2253 | pid_t pid = hal_remote_l32( XPTR( cxy , &socket->pid )); |
---|
| 2254 | fdid_t fdid = hal_remote_l32( XPTR( cxy , &socket->fdid )); |
---|
| 2255 | uint32_t state = hal_remote_l32( XPTR( cxy , &socket->state )); |
---|
| 2256 | uint32_t channel = hal_remote_l32( XPTR( cxy , &socket->nic_channel )); |
---|
| 2257 | uint32_t local_addr = hal_remote_l32( XPTR( cxy , &socket->local_addr )); |
---|
| 2258 | uint32_t local_port = hal_remote_l32( XPTR( cxy , &socket->local_port )); |
---|
| 2259 | uint32_t remote_addr = hal_remote_l32( XPTR( cxy , &socket->remote_addr )); |
---|
| 2260 | uint32_t remote_port = hal_remote_l32( XPTR( cxy , &socket->remote_port )); |
---|
| 2261 | uint32_t tx_valid = hal_remote_l32( XPTR( cxy , &socket->tx_valid )); |
---|
[683] | 2262 | xptr_t tx_client = hal_remote_l64( XPTR( cxy , &socket->tx_client )); |
---|
[662] | 2263 | uint32_t tx_cmd = hal_remote_l32( XPTR( cxy , &socket->tx_cmd )); |
---|
| 2264 | uint32_t tx_sts = hal_remote_l32( XPTR( cxy , &socket->tx_sts )); |
---|
| 2265 | uint32_t tx_len = hal_remote_l32( XPTR( cxy , &socket->tx_len )); |
---|
| 2266 | uint32_t tx_todo = hal_remote_l32( XPTR( cxy , &socket->tx_todo )); |
---|
| 2267 | uint32_t tx_una = hal_remote_l32( XPTR( cxy , &socket->tx_una )); |
---|
| 2268 | uint32_t tx_nxt = hal_remote_l32( XPTR( cxy , &socket->tx_nxt )); |
---|
| 2269 | uint32_t tx_wnd = hal_remote_l32( XPTR( cxy , &socket->tx_wnd )); |
---|
[683] | 2270 | uint32_t tx_ack = hal_remote_l32( XPTR( cxy , &socket->tx_ack )); |
---|
[662] | 2271 | uint32_t rx_valid = hal_remote_l32( XPTR( cxy , &socket->rx_valid )); |
---|
[683] | 2272 | xptr_t rx_client = hal_remote_l64( XPTR( cxy , &socket->rx_client )); |
---|
[662] | 2273 | uint32_t rx_cmd = hal_remote_l32( XPTR( cxy , &socket->rx_cmd )); |
---|
| 2274 | uint32_t rx_sts = hal_remote_l32( XPTR( cxy , &socket->rx_sts )); |
---|
| 2275 | uint32_t rx_nxt = hal_remote_l32( XPTR( cxy , &socket->rx_nxt )); |
---|
| 2276 | uint32_t rx_wnd = hal_remote_l32( XPTR( cxy , &socket->rx_wnd )); |
---|
[683] | 2277 | uint32_t rx_irs = hal_remote_l32( XPTR( cxy , &socket->rx_irs )); |
---|
[662] | 2278 | |
---|
[683] | 2279 | remote_queuelock_t * lock_ptr = &socket->lock; |
---|
| 2280 | uint32_t taken = hal_remote_l32( XPTR( cxy , &lock_ptr->taken )); |
---|
| 2281 | |
---|
| 2282 | thread_t * tx_ptr = GET_PTR( tx_client ); |
---|
| 2283 | cxy_t tx_cxy = GET_CXY( tx_client ); |
---|
| 2284 | trdid_t tx_tid = hal_remote_l32( XPTR( tx_cxy , &tx_ptr->trdid )); |
---|
| 2285 | |
---|
| 2286 | thread_t * rx_ptr = GET_PTR( rx_client ); |
---|
| 2287 | cxy_t rx_cxy = GET_CXY( rx_client ); |
---|
| 2288 | trdid_t rx_tid = hal_remote_l32( XPTR( rx_cxy , &rx_ptr->trdid )); |
---|
| 2289 | |
---|
| 2290 | if( string == NULL ) |
---|
[662] | 2291 | { |
---|
[683] | 2292 | printk("\n****** socket[%x,%d] / lock %d / in %s / cycle %d *****\n", |
---|
| 2293 | pid, fdid, taken, func_str, cycle ); |
---|
[662] | 2294 | } |
---|
| 2295 | else |
---|
| 2296 | { |
---|
[683] | 2297 | printk("\n***** socket[%x,%d] / lock %d / in %s %s / cycle %d *****\n", |
---|
| 2298 | pid, fdid, taken, func_str, string, cycle ); |
---|
[662] | 2299 | } |
---|
[683] | 2300 | printk(" - state %s / channel %d / local [%x,%x] / remote[%x,%x]\n" |
---|
| 2301 | " - tx : valid %d / client [%x,%x] / cmd %s \n" |
---|
| 2302 | " sts %d / len %x / todo %x / ack %x / una %x / nxt %x / wnd %x\n" |
---|
| 2303 | " - rx : valid %d / client [%x,%x] / cmd %s\n" |
---|
| 2304 | " sts %d / nxt %x / wnd %x / irs %x\n", |
---|
| 2305 | socket_state_str(state), channel, |
---|
| 2306 | local_addr, local_port, remote_addr, remote_port, |
---|
| 2307 | tx_valid, pid, tx_tid, socket_cmd_type_str(tx_cmd), |
---|
| 2308 | tx_sts, tx_len, tx_todo, tx_ack, tx_una, tx_nxt, tx_wnd, |
---|
| 2309 | rx_valid, pid, rx_tid, socket_cmd_type_str(rx_cmd), |
---|
| 2310 | rx_sts, rx_nxt, rx_wnd, rx_irs ); |
---|
[662] | 2311 | |
---|
| 2312 | } // end socket_display() |
---|
| 2313 | |
---|
| 2314 | |
---|
| 2315 | |
---|
| 2316 | |
---|
| 2317 | |
---|