[657] | 1 | /* |
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[662] | 2 | * ksocket.c - kernel socket API implementation. |
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[657] | 3 | * |
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[662] | 4 | * Authors Alain Greiner (2016,2017,2018,2019,2020) |
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| 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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| 36 | #include <ksocket.h> |
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| 37 | #include <dev_nic.h> |
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[657] | 38 | |
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[662] | 39 | ////////////////////////////////////////////////////////////////////////////////////// |
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| 40 | // Extern global variables |
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| 41 | ////////////////////////////////////////////////////////////////////////////////////// |
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[657] | 42 | |
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[662] | 43 | extern chdev_directory_t chdev_dir; // allocated in kernel_init.c |
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| 44 | |
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| 45 | /////////////////////////////////////////// |
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| 46 | char * socket_domain_str( uint32_t domain ) |
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[657] | 47 | { |
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[662] | 48 | switch( domain ) |
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| 49 | { |
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| 50 | case AF_INET : return "INET"; |
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| 51 | case AF_LOCAL : return "LOCAL"; |
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| 52 | |
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| 53 | default : return "undefined"; |
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| 54 | } |
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[657] | 55 | } |
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[662] | 56 | |
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| 57 | /////////////////////////////////////// |
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| 58 | char * socket_type_str( uint32_t type ) |
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| 59 | { |
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| 60 | switch( type ) |
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| 61 | { |
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| 62 | case SOCK_DGRAM : return "UDP"; |
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| 63 | case SOCK_STREAM : return "TCP"; |
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[657] | 64 | |
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[662] | 65 | default : return "undefined"; |
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| 66 | } |
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| 67 | } |
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| 68 | |
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| 69 | ///////////////////////////////////////// |
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| 70 | char * socket_state_str( uint32_t state ) |
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| 71 | { |
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| 72 | switch( state ) |
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| 73 | { |
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| 74 | case UDP_STATE_UNBOUND : return "UDP_UNBOUND"; |
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| 75 | case UDP_STATE_BOUND : return "UDP_BOUND"; |
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| 76 | case UDP_STATE_ESTAB : return "UDP_ESTAB"; |
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[657] | 77 | |
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[662] | 78 | case TCP_STATE_UNBOUND : return "TCP_UNBOUND"; |
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| 79 | case TCP_STATE_BOUND : return "TCP_BOUND"; |
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| 80 | case TCP_STATE_LISTEN : return "TCP_LISTEN"; |
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| 81 | case TCP_STATE_SYN_SENT : return "TCP_SYN_SENT"; |
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| 82 | case TCP_STATE_SYN_RCVD : return "TCP_SYN_RCVD"; |
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| 83 | case TCP_STATE_ESTAB : return "TCP_ESTAB"; |
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| 84 | case TCP_STATE_FIN_WAIT1 : return "TCP_FIN_WAIT1"; |
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| 85 | case TCP_STATE_FIN_WAIT2 : return "TCP_FIN_WAIT2"; |
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| 86 | case TCP_STATE_CLOSING : return "TCP_CLOSING"; |
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| 87 | case TCP_STATE_TIME_WAIT : return "TCP_TIME_WAIT"; |
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| 88 | case TCP_STATE_CLOSE_WAIT : return "TCP_CLOSE_WAIT"; |
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| 89 | case TCP_STATE_LAST_ACK : return "TCP_LAST_ACK"; |
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| 90 | case TCP_STATE_CLOSED : return "TCP_CLOSED"; |
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| 91 | |
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| 92 | default : return "undefined"; |
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| 93 | } |
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[657] | 94 | } |
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| 95 | |
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[662] | 96 | /////////////////////////////////////////// |
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| 97 | char * socket_cmd_type_str( uint32_t type ) |
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[657] | 98 | { |
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[662] | 99 | switch( type ) |
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| 100 | { |
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| 101 | case CMD_TX_CONNECT : return "TX_CONNECT"; |
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| 102 | case CMD_TX_ACCEPT : return "TX_ACCEPT"; |
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| 103 | case CMD_TX_CLOSE : return "TX_CLOSE"; |
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| 104 | case CMD_TX_SEND : return "TX_SEND"; |
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| 105 | |
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| 106 | case CMD_RX_ACCEPT : return "RX_ACCEPT"; |
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| 107 | case CMD_RX_RECV : return "RX_RECV"; |
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| 108 | |
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| 109 | default : return "undefined"; |
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| 110 | } |
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[657] | 111 | } |
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[662] | 112 | |
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| 113 | /////////////////////////////////////////// |
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| 114 | char * socket_cmd_sts_str( uint32_t sts ) |
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| 115 | { |
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| 116 | switch( sts ) |
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| 117 | { |
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| 118 | case CMD_STS_SUCCESS : return "TX_CONNECT"; |
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| 119 | case CMD_STS_EOF : return "EOF"; |
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| 120 | case CMD_STS_RST : return "RST"; |
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| 121 | case CMD_STS_BADACK : return "BADACK"; |
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| 122 | case CMD_STS_BADSTATE : return "BADSTATE"; |
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| 123 | case CMD_STS_BADCMD : return "BADCMD"; |
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| 124 | |
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| 125 | default : return "undefined"; |
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| 126 | } |
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| 127 | } |
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[657] | 128 | |
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[662] | 129 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 130 | // This static function registers the socket defined by the <socket_xp> argument into |
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| 131 | // the lists of sockets attached to the relevant NIC_TX and NIC_TX chdevs identified |
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| 132 | // by the <channel> argument, and update the channel field in socket descriptor. |
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| 133 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 134 | // @ socket_xp : [in] extended pointer on socket descriptor. |
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| 135 | // @ channel : [in] NIC channel index. |
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| 136 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 137 | static void socket_link_to_servers( xptr_t socket_xp, |
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| 138 | uint32_t channel ) |
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[657] | 139 | { |
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[662] | 140 | cxy_t socket_cxy = GET_CXY( socket_xp ); |
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| 141 | socket_t * socket_ptr = GET_PTR( socket_xp ); |
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[657] | 142 | |
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[662] | 143 | #if DEBUG_SOCKET_LINK |
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| 144 | thread_t * this = CURRENT_THREAD; |
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| 145 | process_t * process = this->process; |
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| 146 | pid_t socket_pid = hal_remote_l32( XPTR( socket_cxy , &socket_ptr->pid )); |
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| 147 | fdid_t socket_fdid = hal_remote_l32( XPTR( socket_cxy , &socket_ptr->pid )); |
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| 148 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 149 | if( DEBUG_SOCKET_LINK < cycle ) |
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| 150 | printk("\n[%s] thread[%x,%x] enter for socket[%x,%d] / cycle %d\n", |
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| 151 | __FUNCTION__, process->pid, this->trdid, socket_pid, socket_fdid, cycle ); |
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| 152 | #endif |
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[657] | 153 | |
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[662] | 154 | // get pointers on NIC_TX[channel] chdev |
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| 155 | xptr_t tx_chdev_xp = chdev_dir.nic_tx[channel]; |
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| 156 | chdev_t * tx_chdev_ptr = GET_PTR( tx_chdev_xp ); |
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| 157 | cxy_t tx_chdev_cxy = GET_CXY( tx_chdev_xp ); |
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[657] | 158 | |
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[662] | 159 | // build various TX extended pointers |
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| 160 | xptr_t tx_root_xp = XPTR( tx_chdev_cxy , &tx_chdev_ptr->wait_root ); |
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| 161 | xptr_t tx_lock_xp = XPTR( tx_chdev_cxy , &tx_chdev_ptr->wait_lock ); |
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| 162 | xptr_t tx_list_xp = XPTR( socket_cxy , &socket_ptr->tx_list ); |
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[657] | 163 | |
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[662] | 164 | // get pointers on NIC_RX[channel] chdev |
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| 165 | xptr_t rx_chdev_xp = chdev_dir.nic_rx[channel]; |
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| 166 | chdev_t * rx_chdev_ptr = GET_PTR( rx_chdev_xp ); |
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| 167 | cxy_t rx_chdev_cxy = GET_CXY( rx_chdev_xp ); |
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[657] | 168 | |
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[662] | 169 | // build various RX extended pointers |
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| 170 | xptr_t rx_root_xp = XPTR( rx_chdev_cxy , &rx_chdev_ptr->wait_root ); |
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| 171 | xptr_t rx_lock_xp = XPTR( rx_chdev_cxy , &rx_chdev_ptr->wait_lock ); |
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| 172 | xptr_t rx_list_xp = XPTR( socket_cxy , &socket_ptr->rx_list ); |
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[657] | 173 | |
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[662] | 174 | // register socket in the NIC_TX[channel] chdev clients queue |
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| 175 | remote_busylock_acquire( tx_lock_xp ); |
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| 176 | xlist_add_last( tx_root_xp , tx_list_xp ); |
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| 177 | remote_busylock_release( tx_lock_xp ); |
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| 178 | |
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| 179 | // register socket in the NIC_RX[channel] chdev clients queue |
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| 180 | remote_busylock_acquire( rx_lock_xp ); |
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| 181 | xlist_add_last( rx_root_xp , rx_list_xp ); |
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| 182 | remote_busylock_release( rx_lock_xp ); |
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| 183 | |
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| 184 | #if DEBUG_SOCKET_LINK |
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| 185 | cycle = (uint32_t)hal_get_cycles(); |
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| 186 | if( DEBUG_SOCKET_LINK < cycle ) |
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| 187 | printk("\n[%s] thread[%x,%x] linked socket[%x,%d] to channel %d / cycle %d\n", |
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| 188 | __FUNCTION__, process->pid, this->trdid, process->pid, socket_pid, socket_fdid, channel, cycle ); |
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| 189 | #endif |
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| 190 | |
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| 191 | } // end socket_link_to_servers() |
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| 192 | |
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| 193 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 194 | // This function removes the socket defined by the <socket_xp> argument from the |
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| 195 | // lists of sockets attached to the relevant NIC_TX and NIC_TX chdevs. |
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| 196 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 197 | // @ socket_xp : [in] extended pointer on socket descriptor |
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| 198 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 199 | static void socket_unlink_from_servers( xptr_t socket_xp ) |
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| 200 | { |
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| 201 | cxy_t socket_cxy = GET_CXY( socket_xp ); |
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| 202 | socket_t * socket_ptr = GET_PTR( socket_xp ); |
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| 203 | |
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| 204 | #if DEBUG_SOCKET_LINK |
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| 205 | thread_t * this = CURRENT_THREAD; |
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| 206 | process_t * process = this->process; |
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| 207 | pid_t socket_pid = hal_remote_l32( XPTR( socket_cxy , &socket_ptr->pid )); |
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| 208 | fdid_t socket_fdid = hal_remote_l32( XPTR( socket_cxy , &socket_ptr->pid )); |
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| 209 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 210 | if( DEBUG_SOCKET_LINK < cycle ) |
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| 211 | printk("\n[%s] thread[%x,%x] enter for socket[%x,%d] / cycle %d\n", |
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| 212 | __FUNCTION__, process->pid, this->trdid, socket_pid, socket_fdid, cycle ); |
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| 213 | #endif |
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| 214 | |
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| 215 | // get NIC channel |
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| 216 | uint32_t channel = hal_remote_l32( XPTR( socket_cxy , &socket_ptr->nic_channel )); |
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| 217 | |
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| 218 | // get pointers on NIC_TX[channel] chdev |
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| 219 | xptr_t tx_chdev_xp = chdev_dir.nic_tx[channel]; |
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| 220 | chdev_t * tx_chdev_ptr = GET_PTR( tx_chdev_xp ); |
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| 221 | cxy_t tx_chdev_cxy = GET_CXY( tx_chdev_xp ); |
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| 222 | |
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| 223 | // build various TX extended pointers |
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| 224 | xptr_t tx_lock_xp = XPTR( tx_chdev_cxy , &tx_chdev_ptr->wait_lock ); |
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| 225 | xptr_t tx_list_xp = XPTR( socket_cxy , &socket_ptr->tx_list ); |
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| 226 | |
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| 227 | // get pointers on NIC_RX[channel] chdev |
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| 228 | xptr_t rx_chdev_xp = chdev_dir.nic_rx[channel]; |
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| 229 | chdev_t * rx_chdev_ptr = GET_PTR( rx_chdev_xp ); |
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| 230 | cxy_t rx_chdev_cxy = GET_CXY( rx_chdev_xp ); |
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| 231 | |
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| 232 | // build various RX extended pointers |
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| 233 | xptr_t rx_lock_xp = XPTR( rx_chdev_cxy , &rx_chdev_ptr->wait_lock ); |
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| 234 | xptr_t rx_list_xp = XPTR( socket_cxy , &socket_ptr->rx_list ); |
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| 235 | |
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| 236 | // remove socket from the NIC_TX[channel] chdev clients queue |
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| 237 | remote_busylock_acquire( tx_lock_xp ); |
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| 238 | xlist_unlink( tx_list_xp ); |
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| 239 | remote_busylock_release( tx_lock_xp ); |
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| 240 | |
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| 241 | // remove socket from the NIC_RX[channel] chdev clients queue |
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| 242 | remote_busylock_acquire( rx_lock_xp ); |
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| 243 | xlist_unlink( rx_list_xp ); |
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| 244 | remote_busylock_release( rx_lock_xp ); |
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| 245 | |
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| 246 | #if DEBUG_SOCKET_LINK |
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| 247 | cycle = (uint32_t)hal_get_cycles(); |
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| 248 | if( DEBUG_SOCKET_LINK < cycle ) |
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| 249 | printk("\n[%s] thread[%x,%x] unlinked socket [%x,%d] / cycle %d\n", |
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| 250 | __FUNCTION__, process->pid, this->trdid, socket_pid, socket_fdid, cycle ); |
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| 251 | #endif |
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| 252 | |
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| 253 | } // end socket_unlink_from_servers() |
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| 254 | |
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| 255 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 256 | // This static function is called by the socket_build() and socket_accept() functions. |
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| 257 | // It allocates memory in cluster defined by the <cxy> argument for all structures |
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| 258 | // associated to a socket: file descriptor, socket descriptor, RX buffer, R2T queue, |
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| 259 | // and CRQ queue. It allocates an fdid, and register it in the process fd_array. |
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| 260 | // It initialise the the socket desccriptor static fields, other than local_addr, |
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| 261 | // local_port, remote_addr, remote_port), and set the socket state to UNBOUND. |
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| 262 | // It returns the local pointer on socket descriptor and the fdid value in buffers |
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| 263 | // defined by the <socket_ptr> & <fdid_ptr> arguments. |
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| 264 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 265 | // @ cxy : [in] target cluster fo socket & file descriptors. |
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| 266 | // @ domain : [in] socket domain. |
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| 267 | // @ type : [in] socket type. |
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| 268 | // @ socket_ptr : [out] local pointer on buffer for socket pointer. |
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| 269 | // @ fdid_ptr : [out] local pointer on buffer for fdid value. |
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| 270 | // # return 0 if success / return -1 if no memory. |
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| 271 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 272 | static error_t socket_create( cxy_t cxy, |
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| 273 | uint32_t domain, |
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| 274 | uint32_t type, |
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| 275 | socket_t ** socket_ptr, |
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| 276 | uint32_t * fdid_ptr ) |
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| 277 | { |
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| 278 | uint32_t fdid; |
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| 279 | |
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| 280 | thread_t * this = CURRENT_THREAD; |
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| 281 | process_t * process = this->process; |
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| 282 | |
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| 283 | kmem_req_t req; |
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| 284 | socket_t * socket; |
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| 285 | vfs_file_t * file; |
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| 286 | uint32_t state; |
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| 287 | error_t error; |
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| 288 | |
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| 289 | #if DEBUG_SOCKET_CREATE |
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| 290 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 291 | if( DEBUG_SOCKET_CREATE < cycle ) |
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| 292 | printk("\n[%s] thread[%x,%x] enter / cycle %d\n", |
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| 293 | __FUNCTION__, process->pid, this->trdid, cycle ); |
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| 294 | #endif |
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| 295 | |
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| 296 | // allocate memory for socket descriptor |
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| 297 | req.type = KMEM_KCM; |
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| 298 | req.order = bits_log2( sizeof(socket_t) ); |
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| 299 | req.flags = AF_ZERO; |
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| 300 | socket = kmem_remote_alloc( cxy , &req ); |
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| 301 | |
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| 302 | if( socket == NULL ) |
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| 303 | { |
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| 304 | printk("\n[ERROR] in %s : cannot allocate socket descriptor / thread[%x,%x]\n", |
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| 305 | __FUNCTION__, process->pid, this->trdid ); |
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| 306 | return -1; |
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| 307 | } |
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| 308 | |
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| 309 | // allocate memory for rx_buf buffer |
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| 310 | error = remote_buf_init( XPTR( cxy , &socket->rx_buf ), |
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| 311 | NIC_RX_BUF_SIZE ); |
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| 312 | |
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| 313 | if( error ) |
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| 314 | { |
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| 315 | printk("\n[ERROR] in %s : cannot allocate rx_buf / thread[%x,%x]\n", |
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| 316 | __FUNCTION__, process->pid, this->trdid ); |
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| 317 | req.type = KMEM_KCM; |
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| 318 | req.ptr = socket; |
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| 319 | kmem_remote_free( cxy , &req ); |
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| 320 | return -1; |
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| 321 | } |
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| 322 | |
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| 323 | // allocate memory for r2tq queue |
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| 324 | error = remote_buf_init( XPTR( cxy , &socket->r2tq ), |
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| 325 | NIC_R2T_QUEUE_SIZE ); |
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| 326 | if( error ) |
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| 327 | { |
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| 328 | printk("\n[ERROR] in %s : cannot allocate R2T queue / thread[%x,%x]\n", |
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| 329 | __FUNCTION__, process->pid, this->trdid ); |
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| 330 | remote_buf_destroy( XPTR( cxy , &socket->rx_buf ) ); |
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| 331 | req.type = KMEM_KCM; |
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| 332 | req.ptr = socket; |
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| 333 | kmem_remote_free( cxy , &req ); |
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| 334 | return -1; |
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| 335 | } |
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| 336 | |
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| 337 | // don't allocate memory for crqq queue, as it is done by the socket_listen function |
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| 338 | |
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| 339 | // allocate memory for file descriptor |
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| 340 | req.type = KMEM_KCM; |
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| 341 | req.order = bits_log2( sizeof(vfs_file_t) ); |
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| 342 | req.flags = AF_ZERO; |
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| 343 | file = kmem_remote_alloc( cxy , &req ); |
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| 344 | |
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| 345 | if( file == NULL ) |
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| 346 | { |
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| 347 | printk("\n[ERROR] in %s : cannot allocate file descriptor / thread[%x,%x]\n", |
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| 348 | __FUNCTION__, process->pid, this->trdid ); |
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| 349 | remote_buf_destroy( XPTR( cxy , &socket->r2tq ) ); |
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| 350 | remote_buf_destroy( XPTR( cxy , &socket->rx_buf ) ); |
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| 351 | req.type = KMEM_KCM; |
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| 352 | req.ptr = socket; |
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| 353 | kmem_remote_free( cxy , &req ); |
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| 354 | return -1; |
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| 355 | } |
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| 356 | |
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| 357 | // get an fdid value, and register file descriptor in fd_array[] |
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| 358 | error = process_fd_register( process->ref_xp, |
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| 359 | XPTR( cxy , file ), |
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| 360 | &fdid ); |
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| 361 | if ( error ) |
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| 362 | { |
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| 363 | printk("\n[ERROR] in %s : cannot register file descriptor / thread[%x,%x]\n", |
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| 364 | __FUNCTION__, process->pid, this->trdid ); |
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| 365 | req.type = KMEM_KCM; |
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| 366 | req.ptr = file; |
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| 367 | kmem_free( &req ); |
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| 368 | remote_buf_destroy( XPTR( cxy , &socket->r2tq ) ); |
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| 369 | remote_buf_destroy( XPTR( cxy , &socket->rx_buf ) ); |
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| 370 | req.ptr = socket; |
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| 371 | kmem_free( &req ); |
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| 372 | return -1; |
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| 373 | } |
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| 374 | |
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| 375 | state = (type == SOCK_STREAM) ? TCP_STATE_UNBOUND : UDP_STATE_UNBOUND; |
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| 376 | |
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| 377 | // initialise socket descriptor |
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| 378 | hal_remote_s32( XPTR( cxy , &socket->pid ) , process->pid ); |
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| 379 | hal_remote_s32( XPTR( cxy , &socket->fdid ) , fdid ); |
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| 380 | hal_remote_s32( XPTR( cxy , &socket->domain ) , domain ); |
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| 381 | hal_remote_s32( XPTR( cxy , &socket->type ) , type ); |
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| 382 | hal_remote_s32( XPTR( cxy , &socket->state ) , state ); |
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| 383 | hal_remote_s64( XPTR( cxy , &socket->tx_client ) , XPTR_NULL ); |
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| 384 | hal_remote_s64( XPTR( cxy , &socket->rx_client ) , XPTR_NULL ); |
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| 385 | hal_remote_s32( XPTR( cxy , &socket->tx_valid ) , false ); |
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| 386 | hal_remote_s32( XPTR( cxy , &socket->rx_valid ) , false ); |
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| 387 | hal_remote_s32( XPTR( cxy , &socket->nic_channel ) , 0 ); |
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| 388 | |
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| 389 | // initialize file descriptor |
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| 390 | hal_remote_s32( XPTR( cxy , &file->type ) , INODE_TYPE_SOCK ); |
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| 391 | hal_remote_spt( XPTR( cxy , &file->socket ) , socket ); |
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| 392 | hal_remote_s32( XPTR( cxy , &file->refcount ) , 1 ); |
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| 393 | |
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| 394 | // initialize socket lock |
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| 395 | remote_queuelock_init( XPTR( cxy , &socket->lock ) , LOCK_SOCKET_STATE ); |
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| 396 | |
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| 397 | #if DEBUG_SOCKET_CREATE |
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| 398 | if( DEBUG_SOCKET_CREATE < cycle ) |
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| 399 | printk("\n[%s] thread[%x,%x] exit / socket[%x,%d] / xptr[%x,%x] / cycle %d\n", |
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| 400 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cxy, socket, cycle ); |
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| 401 | #endif |
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| 402 | |
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| 403 | // return success |
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| 404 | *socket_ptr = socket; |
---|
| 405 | *fdid_ptr = fdid; |
---|
| 406 | |
---|
| 407 | return 0; |
---|
| 408 | |
---|
| 409 | } // end socket_create |
---|
| 410 | |
---|
| 411 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 412 | // This static function is called by the socket_close() function to destroy a socket |
---|
| 413 | // identified by the <file_xp> argument. |
---|
| 414 | // It remove the associated file from the reference process fd_array. It unlink the |
---|
| 415 | // socket from the NIC_TX [k] and NIC_RX[k] chdevs. It release all memory allocated |
---|
| 416 | // for the structures associated to the target socket socket : file descriptor, |
---|
| 417 | // socket descriptor, RX buffer, R2T queue, CRQ queue. |
---|
| 418 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 419 | // @ file_xp : extended pointer on the file descriptor. |
---|
| 420 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 421 | static void socket_destroy( xptr_t file_xp ) |
---|
| 422 | { |
---|
| 423 | kmem_req_t req; |
---|
| 424 | |
---|
| 425 | thread_t * this = CURRENT_THREAD; |
---|
| 426 | process_t * process = this->process; |
---|
| 427 | |
---|
| 428 | // check file_xp argument |
---|
| 429 | assert( (file_xp != XPTR_NULL), "illegal argument\n" ); |
---|
| 430 | |
---|
| 431 | // get cluster & local pointer for file descriptor |
---|
| 432 | vfs_file_t * file_ptr = GET_PTR( file_xp ); |
---|
| 433 | cxy_t file_cxy = GET_CXY( file_xp ); |
---|
| 434 | |
---|
| 435 | #if DEBUG_SOCKET_DESTROY |
---|
| 436 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 437 | if( DEBUG_SOCKET_DESTROY < cycle ) |
---|
| 438 | printk("\n[%s] thread[%x,%x] enter / file[%x,%x] / cycle %d\n", |
---|
| 439 | __FUNCTION__, process->pid, this->trdid, file_cxy, file_ptr, cycle ); |
---|
| 440 | #endif |
---|
| 441 | |
---|
| 442 | // get local pointer for socket and file type |
---|
| 443 | socket_t * socket_ptr = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
| 444 | uint32_t file_type = hal_remote_l32( XPTR( file_cxy , &file_ptr->type ) ); |
---|
| 445 | |
---|
| 446 | // check file descriptor type |
---|
| 447 | assert( (file_type == INODE_TYPE_SOCK), "illegal file type\n" ); |
---|
| 448 | |
---|
| 449 | // get socket nic_channel and fdid |
---|
| 450 | uint32_t channel = hal_remote_l32( XPTR( file_cxy , &socket_ptr->nic_channel )); |
---|
| 451 | uint32_t fdid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->fdid )); |
---|
| 452 | |
---|
| 453 | // remove socket from NIC_TX & NIC_RX chdev queues when socket is connected |
---|
| 454 | if( channel < LOCAL_CLUSTER->nb_nic_channels ) |
---|
| 455 | { |
---|
| 456 | socket_unlink_from_servers( XPTR( file_cxy , socket_ptr ) ); |
---|
| 457 | } |
---|
| 458 | |
---|
| 459 | // remove the file descriptor from the fd_array |
---|
| 460 | process_fd_remove( process->owner_xp , fdid ); |
---|
| 461 | |
---|
| 462 | // release memory allocated for file descriptor |
---|
| 463 | req.type = KMEM_KCM; |
---|
| 464 | req.ptr = file_ptr; |
---|
| 465 | kmem_remote_free( file_cxy , &req ); |
---|
| 466 | |
---|
| 467 | // release memory allocated for buffers attached to socket descriptor |
---|
| 468 | remote_buf_destroy( XPTR( file_cxy , &socket_ptr->crqq ) ); |
---|
| 469 | remote_buf_destroy( XPTR( file_cxy , &socket_ptr->r2tq ) ); |
---|
| 470 | remote_buf_destroy( XPTR( file_cxy , &socket_ptr->rx_buf ) ); |
---|
| 471 | |
---|
| 472 | // release memory allocated for socket descriptor |
---|
| 473 | req.type = KMEM_KCM; |
---|
| 474 | req.ptr = socket_ptr; |
---|
| 475 | kmem_remote_free( file_cxy , &req ); |
---|
| 476 | |
---|
| 477 | #if DEBUG_SOCKET_DESTROY |
---|
| 478 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 479 | if( DEBUG_SOCKET_DESTROY < cycle ) |
---|
| 480 | printk("\n[%s] thread[%x,%x] exit / cycle %d\n", |
---|
| 481 | __FUNCTION__, process->pid, this->trdid, cycle ); |
---|
| 482 | #endif |
---|
| 483 | |
---|
| 484 | } // end socket_destroy() |
---|
| 485 | |
---|
| 486 | //////////////////////////////////////////////// |
---|
| 487 | void socket_put_r2t_request( xptr_t queue_xp, |
---|
| 488 | uint32_t flags, |
---|
| 489 | uint32_t channel ) |
---|
| 490 | { |
---|
| 491 | xptr_t chdev_xp; |
---|
| 492 | cxy_t chdev_cxy; |
---|
| 493 | chdev_t * chdev_ptr; |
---|
| 494 | thread_t * server_ptr; |
---|
| 495 | xptr_t server_xp; |
---|
| 496 | |
---|
| 497 | while( 1 ) |
---|
| 498 | { |
---|
| 499 | // try to register R2T request |
---|
| 500 | error_t error = remote_buf_put_from_kernel( queue_xp, |
---|
| 501 | (uint8_t *)(&flags), |
---|
| 502 | 1 ); |
---|
| 503 | if( error ) |
---|
| 504 | { |
---|
| 505 | // queue full => wait and retry |
---|
| 506 | sched_yield( "waiting R2T queue" ); |
---|
| 507 | } |
---|
| 508 | else |
---|
| 509 | { |
---|
| 510 | // get NIC_TX chdev pointers |
---|
| 511 | chdev_xp = chdev_dir.nic_tx[channel]; |
---|
| 512 | chdev_cxy = GET_CXY( chdev_xp ); |
---|
| 513 | chdev_ptr = GET_PTR( chdev_xp ); |
---|
| 514 | |
---|
| 515 | // get NIC_TX server thread pointers |
---|
| 516 | server_ptr = hal_remote_lpt( XPTR( chdev_cxy , &chdev_ptr->server ) ); |
---|
| 517 | server_xp = XPTR( chdev_cxy , server_ptr ); |
---|
| 518 | |
---|
| 519 | // unblocks NIC_TX server thread |
---|
| 520 | thread_unblock( server_xp , THREAD_BLOCKED_CLIENT ); |
---|
| 521 | |
---|
| 522 | return; |
---|
| 523 | } |
---|
| 524 | } |
---|
| 525 | } // end socket_put_r2t_request() |
---|
| 526 | |
---|
| 527 | /////////////////////////////////////////////////// |
---|
| 528 | error_t socket_put_crq_request( xptr_t queue_xp, |
---|
| 529 | uint32_t remote_addr, |
---|
| 530 | uint32_t remote_port, |
---|
| 531 | uint32_t remote_iss, |
---|
| 532 | uint32_t remote_window ) |
---|
| 533 | { |
---|
| 534 | connect_request_t req; |
---|
| 535 | |
---|
| 536 | // build request |
---|
| 537 | req.addr = remote_addr; |
---|
| 538 | req.port = remote_port; |
---|
| 539 | req.iss = remote_iss; |
---|
| 540 | req.window = remote_window; |
---|
| 541 | |
---|
| 542 | // try to register request in CRQ |
---|
| 543 | return remote_buf_put_from_kernel( queue_xp, |
---|
| 544 | (uint8_t *)(&req), |
---|
| 545 | sizeof(connect_request_t) ); |
---|
| 546 | } // end socket_put_crq_request() |
---|
| 547 | |
---|
| 548 | //////////////////////////////////////////////////// |
---|
| 549 | error_t socket_get_crq_request( xptr_t queue_xp, |
---|
| 550 | uint32_t * remote_addr, |
---|
| 551 | uint32_t * remote_port, |
---|
| 552 | uint32_t * remote_iss, |
---|
| 553 | uint32_t * remote_window ) |
---|
| 554 | { |
---|
| 555 | connect_request_t req; |
---|
| 556 | error_t error; |
---|
| 557 | |
---|
| 558 | // get request from CRQ |
---|
| 559 | error = remote_buf_get_to_kernel( queue_xp, |
---|
| 560 | (uint8_t *)(&req), |
---|
| 561 | sizeof(connect_request_t) ); |
---|
| 562 | // extract request arguments |
---|
| 563 | *remote_addr = req.addr; |
---|
| 564 | *remote_port = req.port; |
---|
| 565 | *remote_iss = req.iss; |
---|
| 566 | *remote_window = req.window; |
---|
| 567 | |
---|
| 568 | return error; |
---|
| 569 | |
---|
| 570 | } // end socket_get_crq_request() |
---|
| 571 | |
---|
| 572 | |
---|
| 573 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 574 | // Functions implementing the SOCKET related syscalls |
---|
| 575 | ///////////////////////////////////////////////////////////////////////////////////////// |
---|
| 576 | |
---|
| 577 | ////////////////////////////////////// |
---|
| 578 | int socket_build( uint32_t domain, |
---|
| 579 | uint32_t type ) |
---|
| 580 | { |
---|
| 581 | uint32_t fdid; |
---|
| 582 | socket_t * socket; |
---|
| 583 | error_t error; |
---|
| 584 | |
---|
| 585 | #if DEBUG_SOCKET_BUILD |
---|
| 586 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 587 | thread_t * this = CURRENT_THREAD; |
---|
| 588 | process_t * process = this->process; |
---|
| 589 | if( DEBUG_SOCKET_BUILD < cycle ) |
---|
| 590 | printk("\n[%s] thread[%x,%x] enter / %s / %s / cycle %d\n", |
---|
| 591 | __FUNCTION__, process->pid, this->trdid, |
---|
| 592 | socket_domain_str(domain), socket_type_str(type), cycle ); |
---|
| 593 | #endif |
---|
| 594 | |
---|
| 595 | |
---|
| 596 | // allocate memory for the file descriptor and for the socket |
---|
| 597 | error = socket_create( local_cxy, |
---|
| 598 | domain, |
---|
| 599 | type, |
---|
| 600 | &socket, |
---|
| 601 | &fdid ); |
---|
| 602 | |
---|
| 603 | #if DEBUG_SOCKET_BUILD |
---|
| 604 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 605 | if( DEBUG_SOCKET_BUILD < cycle ) |
---|
| 606 | printk("\n[%s] thread[%x,%x] exit / socket %x / fdid %d / %s / cycle %d\n", |
---|
| 607 | __FUNCTION__, process->pid, this->trdid, socket, fdid, |
---|
| 608 | socket_state_str(hal_remote_l32(XPTR(local_cxy , &socket->state))), |
---|
| 609 | cycle ); |
---|
| 610 | #endif |
---|
| 611 | |
---|
| 612 | if( error ) return -1; |
---|
| 613 | return fdid; |
---|
[657] | 614 | } |
---|
| 615 | |
---|
[662] | 616 | //////////////////////////////// |
---|
| 617 | int socket_bind( uint32_t fdid, |
---|
| 618 | uint32_t addr, |
---|
| 619 | uint16_t port ) |
---|
| 620 | { |
---|
| 621 | vfs_inode_type_t file_type; |
---|
| 622 | socket_t * socket; |
---|
| 623 | uint32_t socket_type; |
---|
| 624 | uint32_t socket_state; |
---|
[657] | 625 | |
---|
[662] | 626 | thread_t * this = CURRENT_THREAD; |
---|
| 627 | process_t * process = this->process; |
---|
[657] | 628 | |
---|
[662] | 629 | #if DEBUG_SOCKET_BIND |
---|
| 630 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 631 | if( DEBUG_SOCKET_BIND < cycle ) |
---|
| 632 | printk("\n[%s] thread[%x,%x] enter / socket[%x,%d] / addr %x / port %x / cycle %d\n", |
---|
| 633 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, addr, port, cycle ); |
---|
| 634 | #endif |
---|
[657] | 635 | |
---|
[662] | 636 | // get pointers on file descriptor |
---|
| 637 | xptr_t file_xp = process_fd_get_xptr_from_local( process , fdid ); |
---|
| 638 | vfs_file_t * file_ptr = GET_PTR( file_xp ); |
---|
| 639 | cxy_t file_cxy = GET_CXY( file_xp ); |
---|
| 640 | |
---|
| 641 | // check file_xp |
---|
| 642 | if( file_xp == XPTR_NULL ) |
---|
| 643 | { |
---|
| 644 | printk("\n[ERROR] in %s : undefined fdid %d / thread[%x,%x]\n", |
---|
| 645 | __FUNCTION__, fdid, process->pid, this->trdid ); |
---|
| 646 | return -1; |
---|
| 647 | } |
---|
| 648 | |
---|
| 649 | file_type = hal_remote_l32( XPTR( file_cxy , &file_ptr->type ) ); |
---|
| 650 | socket = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
| 651 | |
---|
| 652 | // check file descriptor type |
---|
| 653 | if( file_type != INODE_TYPE_SOCK ) |
---|
| 654 | { |
---|
| 655 | printk("\n[ERROR] in %s : illegal file type %s / thread[%x,%x]", |
---|
| 656 | __FUNCTION__, vfs_inode_type_str( file_type ), process->pid, this->trdid ); |
---|
| 657 | return -1; |
---|
| 658 | } |
---|
| 659 | |
---|
| 660 | // get socket type |
---|
| 661 | socket_type = hal_remote_l32(XPTR( file_cxy , &socket->type )); |
---|
| 662 | |
---|
| 663 | // compute socket state |
---|
| 664 | socket_state = (socket_type == SOCK_STREAM) ? TCP_STATE_BOUND : UDP_STATE_BOUND; |
---|
| 665 | |
---|
| 666 | // update the socket descriptor |
---|
| 667 | hal_remote_s32( XPTR( file_cxy , &socket->local_addr ) , addr ); |
---|
| 668 | hal_remote_s32( XPTR( file_cxy , &socket->local_port ) , port ); |
---|
| 669 | hal_remote_s32( XPTR( file_cxy , &socket->state ) , socket_state ); |
---|
| 670 | |
---|
| 671 | #if DEBUG_SOCKET_BIND |
---|
| 672 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 673 | if( DEBUG_SOCKET_BIND < cycle ) |
---|
| 674 | printk("\n[%s] thread[%x,%x] exit / socket[%x,%d] / %s / addr %x / port %x / cycle %d\n", |
---|
| 675 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, |
---|
| 676 | socket_state_str(hal_remote_l32( XPTR( file_cxy , &socket->state ))), |
---|
| 677 | hal_remote_l32( XPTR( file_cxy , &socket->local_addr )), |
---|
| 678 | hal_remote_l32( XPTR( file_cxy , &socket->local_port )), |
---|
| 679 | cycle ); |
---|
| 680 | #endif |
---|
| 681 | |
---|
| 682 | return 0; |
---|
| 683 | |
---|
| 684 | } // end socket_bind() |
---|
| 685 | |
---|
| 686 | ////////////////////////////////// |
---|
| 687 | int socket_listen( uint32_t fdid, |
---|
| 688 | uint32_t crq_depth ) |
---|
| 689 | { |
---|
| 690 | xptr_t file_xp; |
---|
| 691 | vfs_file_t * file_ptr; |
---|
| 692 | cxy_t file_cxy; |
---|
| 693 | vfs_inode_type_t file_type; |
---|
| 694 | socket_t * socket_ptr; |
---|
| 695 | uint32_t socket_type; |
---|
| 696 | uint32_t socket_state; |
---|
| 697 | uint32_t socket_local_addr; |
---|
| 698 | uint32_t socket_local_port; |
---|
| 699 | error_t error; |
---|
| 700 | |
---|
| 701 | thread_t * this = CURRENT_THREAD; |
---|
| 702 | process_t * process = this->process; |
---|
| 703 | |
---|
| 704 | #if DEBUG_SOCKET_LISTEN |
---|
| 705 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 706 | if( DEBUG_SOCKET_LISTEN < cycle ) |
---|
| 707 | printk("\n[%s] thread[%x,%x] enter / socket[%x,%d] / crq_depth %x / cycle %d\n", |
---|
| 708 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, crq_depth, cycle ); |
---|
| 709 | #endif |
---|
| 710 | |
---|
| 711 | // get pointers on file descriptor |
---|
| 712 | file_xp = process_fd_get_xptr_from_local( process , fdid ); |
---|
| 713 | file_ptr = GET_PTR( file_xp ); |
---|
| 714 | file_cxy = GET_CXY( file_xp ); |
---|
| 715 | |
---|
| 716 | // check file_xp |
---|
| 717 | if( file_xp == XPTR_NULL ) |
---|
| 718 | { |
---|
| 719 | printk("\n[ERROR] in %s : undefined fdid %d / thread[%x,%x]\n", |
---|
| 720 | __FUNCTION__, fdid, process->pid, this->trdid ); |
---|
| 721 | return -1; |
---|
| 722 | } |
---|
| 723 | |
---|
| 724 | file_type = hal_remote_l32( XPTR( file_cxy , &file_ptr->type ) ); |
---|
| 725 | socket_ptr = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
| 726 | |
---|
| 727 | // check file descriptor type |
---|
| 728 | if( file_type != INODE_TYPE_SOCK ) |
---|
| 729 | { |
---|
| 730 | printk("\n[ERROR] in %s : illegal file type %s / thread[%x,%x]\n", |
---|
| 731 | __FUNCTION__, vfs_inode_type_str(file_type), process->pid, this->trdid ); |
---|
| 732 | return -1; |
---|
| 733 | } |
---|
| 734 | |
---|
| 735 | // get relevant infos from <fdid> socket descriptor |
---|
| 736 | socket_type = hal_remote_l32( XPTR( file_cxy , &socket_ptr->type )); |
---|
| 737 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state )); |
---|
| 738 | socket_local_addr = hal_remote_l32( XPTR( file_cxy , &socket_ptr->local_addr )); |
---|
| 739 | socket_local_port = hal_remote_l32( XPTR( file_cxy , &socket_ptr->local_port )); |
---|
| 740 | |
---|
| 741 | // check socket type |
---|
| 742 | if( socket_type != SOCK_STREAM ) |
---|
| 743 | { |
---|
| 744 | printk("\n[ERROR] in %s : illegal socket type %s / thread[%x,%x]\n", |
---|
| 745 | __FUNCTION__, socket_type_str(socket_type), process->pid, this->trdid ); |
---|
| 746 | return -1; |
---|
| 747 | } |
---|
| 748 | |
---|
| 749 | // check socket state |
---|
| 750 | if( socket_state != TCP_STATE_BOUND ) |
---|
| 751 | { |
---|
| 752 | printk("\n[ERROR] in %s : illegal socket state %s / thread[%x,%x]\n", |
---|
| 753 | __FUNCTION__, socket_state_str(socket_state), process->pid, this->trdid ); |
---|
| 754 | return -1; |
---|
| 755 | } |
---|
| 756 | |
---|
| 757 | // compute CRQ queue depth : max( crq_depth , NIC_CRQ_QUEUE_SIZE ) |
---|
| 758 | uint32_t depth = ( crq_depth > NIC_CRQ_QUEUE_SIZE ) ? crq_depth : NIC_CRQ_QUEUE_SIZE; |
---|
| 759 | |
---|
| 760 | // allocate memory for the CRQ queue |
---|
| 761 | error = remote_buf_init( XPTR( file_cxy , &socket_ptr->crqq ), |
---|
| 762 | depth * sizeof(connect_request_t) ); |
---|
| 763 | if( error ) |
---|
| 764 | { |
---|
| 765 | printk("\n[ERROR] in %s : cannot allocate CRQ queue / thread[%x,%x]\n", |
---|
| 766 | __FUNCTION__, process->pid, this->trdid ); |
---|
| 767 | return -1; |
---|
| 768 | } |
---|
| 769 | |
---|
| 770 | // update socket.state |
---|
| 771 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->state ) , TCP_STATE_LISTEN ); |
---|
| 772 | |
---|
| 773 | // get pointers on NIC_RX[0] chdev |
---|
| 774 | xptr_t rx0_chdev_xp = chdev_dir.nic_rx[0]; |
---|
| 775 | chdev_t * rx0_chdev_ptr = GET_PTR( rx0_chdev_xp ); |
---|
| 776 | cxy_t rx0_chdev_cxy = GET_CXY( rx0_chdev_xp ); |
---|
| 777 | |
---|
| 778 | // build extended pointers on list of listening sockets |
---|
| 779 | xptr_t rx0_root_xp = XPTR( rx0_chdev_cxy , &rx0_chdev_ptr->ext.nic.root ); |
---|
| 780 | xptr_t rx0_lock_xp = XPTR( rx0_chdev_cxy , &rx0_chdev_ptr->ext.nic.lock ); |
---|
| 781 | |
---|
| 782 | // build extended pointer on socket rx_list field |
---|
| 783 | xptr_t list_entry_xp = XPTR( file_cxy , &socket_ptr->rx_list ); |
---|
| 784 | |
---|
| 785 | // register <fdid> socket in listening sockets list |
---|
| 786 | remote_busylock_acquire( rx0_lock_xp ); |
---|
| 787 | xlist_add_last( rx0_root_xp , list_entry_xp ); |
---|
| 788 | remote_busylock_release( rx0_lock_xp ); |
---|
| 789 | |
---|
| 790 | #if DEBUG_SOCKET_LISTEN |
---|
| 791 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 792 | if( DEBUG_SOCKET_LISTEN < cycle ) |
---|
| 793 | printk("\n[%s] thread[%x,%x] exit / socket[%x,%d] / %s / cycle %d\n", |
---|
| 794 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, |
---|
| 795 | socket_state_str(socket_state), cycle ); |
---|
| 796 | #endif |
---|
| 797 | |
---|
| 798 | return 0; |
---|
| 799 | |
---|
| 800 | } // end socket_listen() |
---|
| 801 | |
---|
| 802 | /////////////////////////////////// |
---|
| 803 | int socket_accept( uint32_t fdid, |
---|
| 804 | uint32_t * remote_addr, |
---|
| 805 | uint16_t * remote_port ) |
---|
| 806 | { |
---|
| 807 | xptr_t file_xp; // extended pointer on remote file |
---|
| 808 | vfs_file_t * file_ptr; |
---|
| 809 | cxy_t file_cxy; |
---|
| 810 | vfs_inode_type_t file_type; // file descriptor type |
---|
| 811 | socket_t * socket_ptr; // local pointer on remote waiting socket |
---|
| 812 | uint32_t socket_type; // listening socket type |
---|
| 813 | uint32_t socket_state; // listening socket state |
---|
| 814 | uint32_t socket_domain; // listening socket domain |
---|
| 815 | uint32_t socket_local_addr; // listening socket local IP address |
---|
| 816 | uint32_t socket_local_port; // listening socket local port |
---|
| 817 | uint32_t socket_tx_nxt; // listening socket tx_nxt |
---|
| 818 | bool_t socket_tx_valid; // listening socket tx_valid |
---|
| 819 | xptr_t socket_tx_client; // listening socket tx_client thread |
---|
| 820 | bool_t socket_rx_valid; // listening socket rx_valid |
---|
| 821 | xptr_t socket_rx_client; // listening socket rx_client thread |
---|
| 822 | xptr_t socket_lock_xp; // listening socket lock |
---|
| 823 | xptr_t crq_xp; // listening socket CRQ queue |
---|
| 824 | uint32_t crq_status; // number of bytes in CRQ |
---|
| 825 | cxy_t new_socket_cxy; // new socket cluster identifier |
---|
| 826 | socket_t * new_socket_ptr; // local pointer on new socket |
---|
| 827 | xptr_t new_socket_xp; // extended pointer on new socket |
---|
| 828 | volatile uint32_t new_state; // new socket state (modified by NIC_RX thread) |
---|
| 829 | uint32_t new_fdid; // new socket file descriptor index |
---|
| 830 | uint32_t new_remote_addr; // new socket remote IP address |
---|
| 831 | uint32_t new_remote_port; // new socket remote port |
---|
| 832 | uint32_t new_remote_iss; // new socket remote iss |
---|
| 833 | uint32_t new_remote_window; // new socket receive window |
---|
| 834 | xptr_t tx_server_xp; // extended pointer on TX server thread |
---|
| 835 | thread_t * tx_server_ptr; // local pointer on TX server thread |
---|
| 836 | uint32_t cmd_status; // command status (rx_sts or tx_sts) |
---|
| 837 | bool_t cmd_valid; // valid command (rx_valid or tx_valid) |
---|
| 838 | error_t error; |
---|
| 839 | |
---|
| 840 | thread_t * this = CURRENT_THREAD; |
---|
| 841 | xptr_t client_xp = XPTR( local_cxy , this ); |
---|
| 842 | process_t * process = this->process; |
---|
| 843 | |
---|
| 844 | #if DEBUG_SOCKET_ACCEPT |
---|
| 845 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 846 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 847 | printk("\n[%s] thread[%x,%x] enter for socket[%x,%d] / cycle %d\n", |
---|
| 848 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 849 | #endif |
---|
| 850 | |
---|
| 851 | // 1) get pointers on file descriptor |
---|
| 852 | file_xp = process_fd_get_xptr_from_local( process , fdid ); |
---|
| 853 | file_ptr = GET_PTR( file_xp ); |
---|
| 854 | file_cxy = GET_CXY( file_xp ); |
---|
| 855 | |
---|
| 856 | // check file_xp |
---|
| 857 | if( file_xp == XPTR_NULL ) |
---|
| 858 | { |
---|
| 859 | printk("\n[ERROR] in %s : undefined fdid %d", |
---|
| 860 | __FUNCTION__, fdid ); |
---|
| 861 | return -1; |
---|
| 862 | } |
---|
| 863 | |
---|
| 864 | file_type = hal_remote_l32( XPTR( file_cxy , &file_ptr->type ) ); |
---|
| 865 | socket_ptr = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
| 866 | |
---|
| 867 | // check file descriptor type |
---|
| 868 | if( file_type != INODE_TYPE_SOCK ) |
---|
| 869 | { |
---|
| 870 | printk("\n[ERROR] in %s : illegal file type %s / thread[%x,%x]\n", |
---|
| 871 | __FUNCTION__, vfs_inode_type_str(file_type), process->pid, this->trdid ); |
---|
| 872 | return -1; |
---|
| 873 | } |
---|
| 874 | |
---|
| 875 | // build extended pointer on listening socket lock |
---|
| 876 | socket_lock_xp = XPTR( file_cxy , &socket_ptr->lock ); |
---|
| 877 | |
---|
| 878 | // acquire listening socket lock |
---|
| 879 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 880 | |
---|
| 881 | // get listening socket type, domain, state, local_addr, local_port & tx_nxt |
---|
| 882 | socket_type = hal_remote_l32( XPTR( file_cxy , &socket_ptr->type )); |
---|
| 883 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state )); |
---|
| 884 | socket_domain = hal_remote_l32( XPTR( file_cxy , &socket_ptr->domain )); |
---|
| 885 | socket_local_addr = hal_remote_l32( XPTR( file_cxy , &socket_ptr->local_addr )); |
---|
| 886 | socket_local_port = hal_remote_l32( XPTR( file_cxy , &socket_ptr->local_port )); |
---|
| 887 | socket_tx_nxt = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_nxt )); |
---|
| 888 | socket_tx_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_valid )); |
---|
| 889 | socket_tx_client = hal_remote_l64( XPTR( file_cxy , &socket_ptr->tx_client )); |
---|
| 890 | socket_rx_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->rx_valid )); |
---|
| 891 | socket_rx_client = hal_remote_l64( XPTR( file_cxy , &socket_ptr->rx_client )); |
---|
| 892 | |
---|
| 893 | // check socket type |
---|
| 894 | if( socket_type != SOCK_STREAM ) |
---|
| 895 | { |
---|
| 896 | // release listening socket lock |
---|
| 897 | remote_queuelock_release( socket_lock_xp ); |
---|
| 898 | |
---|
| 899 | printk("\n[ERROR] in %s : illegal socket type %s / thread[%x,%x]\n", |
---|
| 900 | __FUNCTION__, socket_type_str(socket_type), process->pid , this->trdid ); |
---|
| 901 | return -1; |
---|
| 902 | } |
---|
| 903 | |
---|
| 904 | // check socket state |
---|
| 905 | if( socket_state != TCP_STATE_LISTEN ) |
---|
| 906 | { |
---|
| 907 | // release listening socket lock |
---|
| 908 | remote_queuelock_release( socket_lock_xp ); |
---|
| 909 | |
---|
| 910 | printk("\n[ERROR] in %s : illegal socket state %s / thread[%x,%x]\n", |
---|
| 911 | __FUNCTION__, socket_state_str(socket_state), process->pid, this->trdid ); |
---|
| 912 | return -1; |
---|
| 913 | } |
---|
| 914 | |
---|
| 915 | // check no previous RX command |
---|
| 916 | if( (socket_rx_valid == true) || (socket_rx_client != XPTR_NULL) ) |
---|
| 917 | { |
---|
| 918 | // release listening socket lock |
---|
| 919 | remote_queuelock_release( socket_lock_xp ); |
---|
| 920 | |
---|
| 921 | printk("\n[ERROR] in %s : previous RX cmd on socket[%x,%d] / thread[%x,%x]\n", |
---|
| 922 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid ); |
---|
| 923 | return -1; |
---|
| 924 | } |
---|
| 925 | |
---|
| 926 | // check no previous TX command |
---|
| 927 | if( (socket_tx_valid == true) || (socket_tx_client != XPTR_NULL) ) |
---|
| 928 | { |
---|
| 929 | // release socket lock |
---|
| 930 | remote_queuelock_release( socket_lock_xp ); |
---|
| 931 | |
---|
| 932 | printk("\n[ERROR] in %s : previous TX cmd on socket[%x,%d] / thread[%x,%x]\n", |
---|
| 933 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid ); |
---|
| 934 | return -1; |
---|
| 935 | } |
---|
| 936 | |
---|
| 937 | // 2) build extended pointer on listening socket.crq |
---|
| 938 | crq_xp = XPTR( file_cxy , &socket_ptr->crqq ); |
---|
| 939 | |
---|
| 940 | // get CRQ status |
---|
| 941 | crq_status = remote_buf_status( crq_xp ); |
---|
| 942 | |
---|
| 943 | // block & deschedule when CRQ empty |
---|
| 944 | if( crq_status == 0 ) |
---|
| 945 | { |
---|
| 946 | // register command arguments in listening socket |
---|
| 947 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->rx_cmd ), CMD_RX_ACCEPT ); |
---|
| 948 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->rx_client ), client_xp ); |
---|
| 949 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->rx_valid ), true ); |
---|
| 950 | |
---|
| 951 | // release listening socket lock |
---|
| 952 | remote_queuelock_release( socket_lock_xp ); |
---|
| 953 | |
---|
| 954 | #if DEBUG_SOCKET_ACCEPT |
---|
| 955 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 956 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 957 | printk("\n[%s] thread[%x,%x] socket[%x,%d] / CRQ empty => blocks on <IO> / cycle %d\n", |
---|
| 958 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 959 | #endif |
---|
| 960 | // block & deschedule when CRQQ empty |
---|
| 961 | thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_IO ); |
---|
| 962 | sched_yield( "CRQ queue empty"); |
---|
| 963 | |
---|
| 964 | #if DEBUG_SOCKET_ACCEPT |
---|
| 965 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 966 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 967 | printk("\n[%s] thread[%x,%x] socket[%x,%d] / resumes / cycle %d\n", |
---|
| 968 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 969 | #endif |
---|
| 970 | // take listening socket lock |
---|
| 971 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 972 | |
---|
| 973 | // get CRQ status & command status |
---|
| 974 | cmd_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->rx_valid ) ); |
---|
| 975 | cmd_status = hal_remote_l32( XPTR( file_cxy , &socket_ptr->rx_sts ) ); |
---|
| 976 | crq_status = remote_buf_status( crq_xp ); |
---|
| 977 | |
---|
| 978 | assert( (((crq_status > 0) || (cmd_status!= CMD_STS_SUCCESS)) && (cmd_valid == false)), |
---|
| 979 | "illegal socket state when client thread resumes after RX_ACCEPT" ); |
---|
| 980 | |
---|
| 981 | // reset socket.rx_client |
---|
| 982 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->rx_client ) , XPTR_NULL ); |
---|
| 983 | |
---|
| 984 | if( cmd_status != CMD_STS_SUCCESS ) |
---|
| 985 | { |
---|
| 986 | // release socket lock |
---|
| 987 | remote_queuelock_release( socket_lock_xp ); |
---|
| 988 | |
---|
| 989 | printk("\n[ERROR] in %s for RX_ACCEPT command / socket[%x,%d] / thread[%x,%x]\n", |
---|
| 990 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid ); |
---|
| 991 | return -1; |
---|
| 992 | } |
---|
| 993 | |
---|
| 994 | // extract first request from the listening socket CRQ |
---|
| 995 | error = socket_get_crq_request( crq_xp, |
---|
| 996 | &new_remote_addr, |
---|
| 997 | &new_remote_port, |
---|
| 998 | &new_remote_iss, |
---|
| 999 | &new_remote_window ); |
---|
| 1000 | |
---|
| 1001 | assert( (error == 0), |
---|
| 1002 | "cannot get a connection request from a non-empty CRQ" ); |
---|
| 1003 | |
---|
| 1004 | // reset listening socket rx_client |
---|
| 1005 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->rx_client ) , XPTR_NULL ); |
---|
| 1006 | |
---|
| 1007 | // release socket lock |
---|
| 1008 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1009 | |
---|
| 1010 | } // end blocking on CRQ status |
---|
| 1011 | |
---|
| 1012 | // from this point, we can create a new socket |
---|
| 1013 | // and ask the NIC_TX to send a SYN-ACK segment |
---|
| 1014 | |
---|
| 1015 | #if DEBUG_SOCKET_ACCEPT |
---|
| 1016 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1017 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 1018 | printk("\n[%s] thread[%x,%x] socket[%x,%d] / got a CRQ request / cycle %d\n", |
---|
| 1019 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 1020 | #endif |
---|
| 1021 | |
---|
| 1022 | // 3) select a cluster for the new socket |
---|
| 1023 | new_socket_cxy = cluster_random_select(); |
---|
| 1024 | |
---|
| 1025 | // allocate memory for the new socket descriptor |
---|
| 1026 | error = socket_create( new_socket_cxy, |
---|
| 1027 | socket_domain, |
---|
| 1028 | socket_type, |
---|
| 1029 | &new_socket_ptr, |
---|
| 1030 | &new_fdid ); |
---|
| 1031 | if( error ) |
---|
| 1032 | { |
---|
| 1033 | printk("\n[ERROR] in %s : cannot allocate new socket / thread[%x,%x]\n", |
---|
| 1034 | __FUNCTION__, process->pid, this->trdid ); |
---|
| 1035 | return -1; |
---|
| 1036 | } |
---|
| 1037 | |
---|
| 1038 | // build extended poiner on new socket |
---|
| 1039 | new_socket_xp = XPTR( new_socket_cxy , new_socket_ptr ); |
---|
| 1040 | |
---|
| 1041 | #if DEBUG_SOCKET_ACCEPT |
---|
| 1042 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1043 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 1044 | printk("\n[%s] thread[%x,%x] created new socket[%x,%d] / cycle %d\n", |
---|
| 1045 | __FUNCTION__, process->pid, this->trdid, process->pid, new_fdid, cycle ); |
---|
| 1046 | #endif |
---|
| 1047 | |
---|
| 1048 | // compute NIC channel index from remote_addr and remote_port |
---|
| 1049 | uint32_t new_nic_channel = dev_nic_get_key( new_remote_addr , new_remote_port ); |
---|
| 1050 | |
---|
| 1051 | // update new socket descriptor |
---|
| 1052 | hal_remote_s32(XPTR(new_socket_cxy , &new_socket_ptr->local_addr ) , socket_local_addr ); |
---|
| 1053 | hal_remote_s32(XPTR(new_socket_cxy , &new_socket_ptr->local_port ) , socket_local_port ); |
---|
| 1054 | hal_remote_s32(XPTR(new_socket_cxy , &new_socket_ptr->remote_addr) , new_remote_addr ); |
---|
| 1055 | hal_remote_s32(XPTR(new_socket_cxy , &new_socket_ptr->remote_port) , new_remote_port ); |
---|
| 1056 | hal_remote_s32(XPTR(new_socket_cxy , &new_socket_ptr->nic_channel) , new_nic_channel ); |
---|
| 1057 | hal_remote_s32(XPTR(new_socket_cxy , &new_socket_ptr->state ) , TCP_STATE_SYN_RCVD ); |
---|
| 1058 | |
---|
| 1059 | // set new socket TCB : increment tx_nxt / initialize rx_nxt, rx_irs, rx_wnd |
---|
| 1060 | hal_remote_s32( XPTR( new_socket_cxy , &new_socket_ptr->tx_nxt ), socket_tx_nxt + 1 ); |
---|
| 1061 | hal_remote_s32( XPTR( new_socket_cxy , &new_socket_ptr->rx_nxt ), new_remote_iss + 1 ); |
---|
| 1062 | hal_remote_s32( XPTR( new_socket_cxy , &new_socket_ptr->rx_irs ), new_remote_iss ); |
---|
| 1063 | hal_remote_s32( XPTR( new_socket_cxy , &new_socket_ptr->rx_wnd ), new_remote_window ); |
---|
| 1064 | |
---|
| 1065 | // link new socket to chdev servers |
---|
| 1066 | socket_link_to_servers( new_socket_xp , new_nic_channel ); |
---|
| 1067 | |
---|
| 1068 | // 3) get pointers on NIC_TX[channel] chdev |
---|
| 1069 | xptr_t tx_chdev_xp = chdev_dir.nic_tx[new_nic_channel]; |
---|
| 1070 | chdev_t * tx_chdev_ptr = GET_PTR( tx_chdev_xp ); |
---|
| 1071 | cxy_t tx_chdev_cxy = GET_CXY( tx_chdev_xp ); |
---|
| 1072 | |
---|
| 1073 | // get pointers on NIC_TX[channel] server thread |
---|
| 1074 | tx_server_ptr = hal_remote_lpt( XPTR( tx_chdev_cxy , &tx_chdev_ptr->server )); |
---|
| 1075 | tx_server_xp = XPTR( tx_chdev_cxy , tx_server_ptr ); |
---|
| 1076 | |
---|
| 1077 | // register command arguments in new socket to request a SYN_ACK segment |
---|
| 1078 | hal_remote_s32( XPTR( new_socket_cxy , &new_socket_ptr->tx_cmd ), CMD_TX_ACCEPT ); |
---|
| 1079 | hal_remote_s64( XPTR( new_socket_cxy , &new_socket_ptr->tx_client ), client_xp ); |
---|
| 1080 | hal_remote_s32( XPTR( new_socket_cxy , &new_socket_ptr->tx_valid ), true ); |
---|
| 1081 | |
---|
| 1082 | // unblock NIC_TX server thread |
---|
| 1083 | thread_unblock( tx_server_xp , THREAD_BLOCKED_CLIENT ); |
---|
[657] | 1084 | |
---|
[662] | 1085 | #if DEBUG_SOCKET_ACCEPT |
---|
| 1086 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1087 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 1088 | printk("\n[%s] thread[%x,%x] new_socket[%x,%d] blocks on <IO> waiting ESTAB / cycle %d\n", |
---|
| 1089 | __FUNCTION__, process->pid, this->trdid, process->pid, new_fdid, cycle ); |
---|
| 1090 | #endif |
---|
| 1091 | |
---|
| 1092 | // client thread blocks & deschedules |
---|
| 1093 | thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_IO ); |
---|
| 1094 | sched_yield( "waiting new socket connection"); |
---|
| 1095 | |
---|
| 1096 | #if DEBUG_SOCKET_ACCEPT |
---|
| 1097 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1098 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 1099 | printk("\n[%s] thread[%x,%x] new_socket[%x,%d] resumes / cycle %d\n", |
---|
| 1100 | __FUNCTION__, process->pid, this->trdid, process->pid, new_fdid, cycle ); |
---|
| 1101 | #endif |
---|
| 1102 | |
---|
| 1103 | // get new socket state, tx_valid and tx_sts |
---|
| 1104 | new_state = hal_remote_l32( XPTR( new_socket_cxy , &new_socket_ptr->state )); |
---|
| 1105 | cmd_valid = hal_remote_l32( XPTR( new_socket_cxy , &new_socket_ptr->tx_valid )); |
---|
| 1106 | cmd_status = hal_remote_l32( XPTR( new_socket_cxy , &new_socket_ptr->tx_sts )); |
---|
| 1107 | |
---|
| 1108 | assert( (((new_state == TCP_STATE_ESTAB) || (cmd_status != CMD_STS_SUCCESS)) |
---|
| 1109 | && (cmd_valid == false)), |
---|
| 1110 | "illegal socket state when client thread resumes after TX_ACCEPT" ); |
---|
| 1111 | |
---|
| 1112 | // reset socket.tx_client |
---|
| 1113 | hal_remote_s64( XPTR( new_socket_cxy , &new_socket_ptr->tx_client ) , XPTR_NULL ); |
---|
| 1114 | |
---|
| 1115 | if( cmd_status != CMD_STS_SUCCESS ) |
---|
| 1116 | { |
---|
| 1117 | printk("\n[ERROR] in %s for TX_ACCEPT command / socket[%x,%d] / thread[%x,%x]\n", |
---|
| 1118 | __FUNCTION__, process->pid, new_fdid, process->pid, this->trdid ); |
---|
| 1119 | return -1; |
---|
| 1120 | } |
---|
| 1121 | else |
---|
| 1122 | { |
---|
| 1123 | |
---|
| 1124 | #if DEBUG_SOCKET_ACCEPT |
---|
| 1125 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1126 | if( DEBUG_SOCKET_ACCEPT < cycle ) |
---|
| 1127 | printk("\n[%s] thread[%x,%x] new_socket[%x,%d] / state %s / addr %x / port %x / cycle %d\n", |
---|
| 1128 | __FUNCTION__, process->pid, this->trdid, process->pid, new_fdid, |
---|
| 1129 | socket_state_str(new_state), new_remote_addr, new_remote_port, cycle ); |
---|
| 1130 | #endif |
---|
| 1131 | |
---|
| 1132 | // return success |
---|
| 1133 | *remote_addr = new_remote_addr; |
---|
| 1134 | *remote_port = new_remote_port; |
---|
| 1135 | return new_fdid; |
---|
| 1136 | } |
---|
| 1137 | |
---|
| 1138 | } // end socket_accept() |
---|
| 1139 | |
---|
| 1140 | ////////////////////////////////// |
---|
| 1141 | int socket_connect( uint32_t fdid, |
---|
| 1142 | uint32_t remote_addr, |
---|
| 1143 | uint16_t remote_port ) |
---|
| 1144 | { |
---|
| 1145 | vfs_inode_type_t file_type; |
---|
| 1146 | socket_t * socket_ptr; // local pointer on thread descriptor |
---|
| 1147 | volatile uint32_t socket_state; // socket state (modified by the NIC_TX thread) |
---|
| 1148 | uint32_t socket_type; // socket type |
---|
| 1149 | uint32_t local_addr; // local IP address |
---|
| 1150 | uint32_t local_port; // local port |
---|
| 1151 | xptr_t tx_server_xp; // extended pointer on TX server thread |
---|
| 1152 | thread_t * tx_server_ptr; // local pointer on TX server thread |
---|
| 1153 | uint32_t nic_channel; // NIC channel index |
---|
| 1154 | uint32_t cmd_status; // command status (tx_sts field) |
---|
| 1155 | bool_t cmd_valid; // command valid (tx_valid field) |
---|
| 1156 | |
---|
| 1157 | thread_t * this = CURRENT_THREAD; |
---|
| 1158 | xptr_t client_xp = XPTR( local_cxy , this ); |
---|
| 1159 | |
---|
| 1160 | // get pointers on file descriptor |
---|
| 1161 | xptr_t file_xp = process_fd_get_xptr_from_local( this->process , fdid ); |
---|
| 1162 | vfs_file_t * file_ptr = GET_PTR( file_xp ); |
---|
| 1163 | cxy_t file_cxy = GET_CXY( file_xp ); |
---|
| 1164 | |
---|
| 1165 | // check file_xp |
---|
| 1166 | if( file_xp == XPTR_NULL ) |
---|
| 1167 | { |
---|
| 1168 | printk("\n[ERROR] in %s : undefined fdid %d", |
---|
| 1169 | __FUNCTION__, fdid ); |
---|
| 1170 | return -1; |
---|
| 1171 | } |
---|
| 1172 | |
---|
| 1173 | file_type = hal_remote_l32( XPTR( file_cxy , &file_ptr->type ) ); |
---|
| 1174 | socket_ptr = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
| 1175 | |
---|
| 1176 | #if DEBUG_SOCKET_CONNECT |
---|
| 1177 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 1178 | pid_t pid = this->process->pid; |
---|
| 1179 | trdid_t trdid = this->trdid; |
---|
| 1180 | if( DEBUG_SOCKET_CONNECT < cycle ) |
---|
| 1181 | printk("\n[%s] thread[%x,%x] enter for socket[%x,%d] / addr %x / port %d / cycle %d\n", |
---|
| 1182 | __FUNCTION__, pid, trdid, pid, fdid, remote_addr, remote_port, cycle ); |
---|
| 1183 | #endif |
---|
| 1184 | |
---|
| 1185 | // check file descriptor type |
---|
| 1186 | if( file_type != INODE_TYPE_SOCK ) |
---|
| 1187 | { |
---|
| 1188 | printk("\n[ERROR] in %s : illegal file type %s", |
---|
| 1189 | __FUNCTION__, vfs_inode_type_str( file_type ) ); |
---|
| 1190 | return -1; |
---|
| 1191 | } |
---|
| 1192 | |
---|
| 1193 | // get relevant socket infos |
---|
| 1194 | socket_type = hal_remote_l32( XPTR( file_cxy , &socket_ptr->type ) ); |
---|
| 1195 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state ) ); |
---|
| 1196 | local_addr = hal_remote_l32( XPTR( file_cxy , &socket_ptr->local_addr ) ); |
---|
| 1197 | local_port = hal_remote_l32( XPTR( file_cxy , &socket_ptr->local_port ) ); |
---|
| 1198 | |
---|
| 1199 | if( socket_type == SOCK_DGRAM ) // UDP |
---|
| 1200 | { |
---|
| 1201 | if( socket_state != UDP_STATE_BOUND ) |
---|
| 1202 | { |
---|
| 1203 | printk("\n[ERROR] in %s : illegal socket state %s for type %s", |
---|
| 1204 | __FUNCTION__, socket_state_str(socket_state), socket_type_str(socket_type) ); |
---|
| 1205 | return -1; |
---|
| 1206 | } |
---|
| 1207 | } |
---|
| 1208 | else if( socket_type == SOCK_STREAM ) // TCP |
---|
| 1209 | { |
---|
| 1210 | if( socket_state != TCP_STATE_BOUND ) |
---|
| 1211 | { |
---|
| 1212 | printk("\n[ERROR] in %s : illegal socket state %s for type %s", |
---|
| 1213 | __FUNCTION__, socket_state_str(socket_state), socket_type_str(socket_type) ); |
---|
| 1214 | return -1; |
---|
| 1215 | } |
---|
| 1216 | } |
---|
| 1217 | else |
---|
| 1218 | { |
---|
| 1219 | printk("\n[ERROR] in %s : illegal socket type %s", |
---|
| 1220 | __FUNCTION__, socket_type_str(socket_type) ); |
---|
| 1221 | return -1; |
---|
| 1222 | } |
---|
| 1223 | |
---|
| 1224 | // compute nic_channel index from remote_addr and remote_port |
---|
| 1225 | nic_channel = dev_nic_get_key( remote_addr , remote_port ); |
---|
| 1226 | |
---|
| 1227 | // link socket to chdev servers |
---|
| 1228 | socket_link_to_servers( XPTR( file_cxy , socket_ptr ), nic_channel ); |
---|
| 1229 | |
---|
| 1230 | // update the socket descriptor |
---|
| 1231 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->remote_addr ) , remote_addr ); |
---|
| 1232 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->remote_port ) , remote_port ); |
---|
| 1233 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->nic_channel ) , nic_channel ); |
---|
| 1234 | |
---|
| 1235 | // the actual connection mechanism depends on socket type |
---|
| 1236 | // UDP : client thread updates the local socket state without blocking |
---|
| 1237 | // TCP : client thread request TX server thread to start the 3 steps handshake |
---|
| 1238 | |
---|
| 1239 | if( socket_type == SOCK_DGRAM ) // UDP |
---|
| 1240 | { |
---|
| 1241 | // directly update the local socket state |
---|
| 1242 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->state ) , UDP_STATE_ESTAB ); |
---|
| 1243 | |
---|
| 1244 | return 0; |
---|
| 1245 | } |
---|
| 1246 | else // TCP |
---|
| 1247 | { |
---|
| 1248 | // get pointers on NIC_TX[channel] chdev |
---|
| 1249 | xptr_t tx_chdev_xp = chdev_dir.nic_tx[nic_channel]; |
---|
| 1250 | chdev_t * tx_chdev_ptr = GET_PTR( tx_chdev_xp ); |
---|
| 1251 | cxy_t tx_chdev_cxy = GET_CXY( tx_chdev_xp ); |
---|
| 1252 | |
---|
| 1253 | // get pointers on NIC_TX[channel] server thread |
---|
| 1254 | tx_server_ptr = hal_remote_lpt( XPTR( tx_chdev_cxy , &tx_chdev_ptr->server )); |
---|
| 1255 | tx_server_xp = XPTR( tx_chdev_cxy , tx_server_ptr ); |
---|
| 1256 | |
---|
| 1257 | // register command arguments in socket descriptor for a SYN segment |
---|
| 1258 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_cmd ), CMD_TX_CONNECT ); |
---|
| 1259 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->tx_client ), client_xp ); |
---|
| 1260 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_valid ), true ); |
---|
| 1261 | |
---|
| 1262 | // unblock NIC_TX server thread |
---|
| 1263 | thread_unblock( tx_server_xp , THREAD_BLOCKED_CLIENT ); |
---|
| 1264 | |
---|
| 1265 | #if DEBUG_SOCKET_CONNECT |
---|
| 1266 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1267 | if( DEBUG_SOCKET_CONNECT < cycle ) |
---|
| 1268 | printk("\n[%s] thread[%x,%x] socket[%x,%d] blocks on <IO> waiting connexion / cycle %d \n", |
---|
| 1269 | __FUNCTION__, pid, trdid, pid, fdid, cycle ); |
---|
| 1270 | #endif |
---|
| 1271 | // block itself and deschedule |
---|
| 1272 | thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_IO ); |
---|
| 1273 | sched_yield( "waiting connection" ); |
---|
| 1274 | |
---|
| 1275 | #if DEBUG_SOCKET_CONNECT |
---|
| 1276 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1277 | if( DEBUG_SOCKET_CONNECT < cycle ) |
---|
| 1278 | printk("\n[%s] thread[%x,%x] socket[%x,%d] / resumes / cycle %d \n", |
---|
| 1279 | __FUNCTION__, pid, trdid, pid, fdid, cycle ); |
---|
| 1280 | #endif |
---|
| 1281 | |
---|
| 1282 | // get socket state, tx_valid and tx_sts |
---|
| 1283 | cmd_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_valid )); |
---|
| 1284 | cmd_status = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_sts )); |
---|
| 1285 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state )); |
---|
| 1286 | |
---|
| 1287 | assert( (((socket_state == TCP_STATE_ESTAB) || (cmd_status != CMD_STS_SUCCESS)) |
---|
| 1288 | && (cmd_valid == false)), |
---|
| 1289 | "illegal socket state when client thread resumes after TX_CONNECT" ); |
---|
| 1290 | |
---|
| 1291 | // reset socket.tx_client |
---|
| 1292 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_client ) , XPTR_NULL ); |
---|
| 1293 | |
---|
| 1294 | if( cmd_status != CMD_STS_SUCCESS ) |
---|
| 1295 | { |
---|
| 1296 | printk("\n[ERROR] in %s : for command TX_CONNECT / socket[%x,%d] / thread[%x,%x]\n", |
---|
| 1297 | __FUNCTION__, pid, fdid, pid, trdid ); |
---|
| 1298 | return -1; |
---|
| 1299 | } |
---|
| 1300 | else |
---|
| 1301 | { |
---|
| 1302 | |
---|
| 1303 | #if DEBUG_SOCKET_CONNECT |
---|
| 1304 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1305 | if( DEBUG_SOCKET_CONNECT < cycle ) |
---|
| 1306 | printk("\n[%s] thread[%x,%x] exit for socket[%x,%d] / %s / cycle %d \n", |
---|
| 1307 | __FUNCTION__, pid, trdid, pid, fdid, socket_state_str(socket_state),cycle ); |
---|
| 1308 | #endif |
---|
| 1309 | return 0; |
---|
| 1310 | } |
---|
| 1311 | } // end TCP |
---|
| 1312 | |
---|
| 1313 | } // end socket_connect() |
---|
| 1314 | |
---|
| 1315 | /////////////////////////////////// |
---|
| 1316 | int socket_close( xptr_t file_xp, |
---|
| 1317 | uint32_t fdid ) |
---|
| 1318 | { |
---|
| 1319 | uint32_t socket_type; |
---|
| 1320 | uint32_t socket_state; |
---|
| 1321 | uint32_t nic_channel; |
---|
| 1322 | uint32_t cmd_status; // socket.tx_sts |
---|
| 1323 | bool_t cmd_valid; // socket.tx_valid |
---|
| 1324 | thread_t * tx_server_ptr; // local pointer on NIC_TX server thread |
---|
| 1325 | xptr_t tx_server_xp; // extended pointer on NIC_TX server thread |
---|
| 1326 | xptr_t socket_lock_xp; // extended pointer on socket lock |
---|
| 1327 | |
---|
| 1328 | thread_t * this = CURRENT_THREAD; |
---|
| 1329 | xptr_t client_xp = XPTR( local_cxy , this ); |
---|
| 1330 | process_t * process = this->process; |
---|
| 1331 | |
---|
| 1332 | // get pointer on socket descriptor |
---|
| 1333 | cxy_t file_cxy = GET_CXY( file_xp ); |
---|
| 1334 | vfs_file_t * file_ptr = GET_PTR( file_xp ); |
---|
| 1335 | socket_t * socket_ptr = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
| 1336 | |
---|
| 1337 | assert( (hal_remote_l32( XPTR( file_cxy , &socket_ptr->fdid )) == fdid), |
---|
| 1338 | "unconsistent file_xp & fdid arguments"); |
---|
| 1339 | |
---|
| 1340 | #if DEBUG_SOCKET_CLOSE |
---|
| 1341 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 1342 | pid_t pid = this->process->pid; |
---|
| 1343 | if (DEBUG_SOCKET_CLOSE < cycle ) |
---|
| 1344 | printk("\n[%s] thread[%x,%x] enters for socket[%x,%d] / cycle %d\n", |
---|
| 1345 | __FUNCTION__, pid, this->trdid, pid, fdid, cycle ); |
---|
| 1346 | #endif |
---|
| 1347 | |
---|
| 1348 | // build extended pointer on lock protecting socket |
---|
| 1349 | socket_lock_xp = XPTR( file_cxy , &socket_ptr->lock ); |
---|
| 1350 | |
---|
| 1351 | // take socket lock |
---|
| 1352 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 1353 | |
---|
| 1354 | // check no previous TX command |
---|
| 1355 | if( (hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_valid )) == true) || |
---|
| 1356 | (hal_remote_l64( XPTR( file_cxy , &socket_ptr->tx_client)) != XPTR_NULL) ) |
---|
| 1357 | { |
---|
| 1358 | // release socket lock |
---|
| 1359 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1360 | |
---|
| 1361 | printk("\n[ERROR] in %s : previous TX cmd on socket[%x,%d] / thread[%x,%x]\n", |
---|
| 1362 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid ); |
---|
| 1363 | return -1; |
---|
| 1364 | } |
---|
| 1365 | |
---|
| 1366 | // get relevant socket infos |
---|
| 1367 | socket_type = hal_remote_l32( XPTR( file_cxy , &socket_ptr->type )); |
---|
| 1368 | nic_channel = hal_remote_l32( XPTR( file_cxy , &socket_ptr->nic_channel )); |
---|
| 1369 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state )); |
---|
| 1370 | |
---|
| 1371 | |
---|
| 1372 | // the actual close mechanism depends on socket type and state: |
---|
| 1373 | // UDP or TCP not connected : client thread directly destroy the socket descriptor |
---|
| 1374 | // TCP connected : client thread request TX server thread to make the TCP close handshake |
---|
| 1375 | |
---|
| 1376 | if( socket_type == SOCK_DGRAM ) // UDP |
---|
| 1377 | { |
---|
| 1378 | |
---|
| 1379 | #if DEBUG_SOCKET_CLOSE |
---|
| 1380 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1381 | if( cycle > DEBUG_DEV_NIC_TX ) |
---|
| 1382 | printk("\n[%s] thread[%x,%x] socket[%x,%d] %s / destroy socket / cycle %d\n", |
---|
| 1383 | __FUNCTION__, this->process->pid, this->trdid, pid, fdid, |
---|
| 1384 | socket_state_str( socket_state ), cycle ); |
---|
| 1385 | #endif |
---|
| 1386 | // directly destroy socket |
---|
| 1387 | socket_destroy( file_xp ); |
---|
| 1388 | |
---|
| 1389 | return 0; |
---|
| 1390 | } |
---|
| 1391 | else if( (socket_state == TCP_STATE_BOUND) || |
---|
| 1392 | (socket_state == TCP_STATE_LISTEN) || |
---|
| 1393 | (socket_state == TCP_STATE_SYN_SENT) ) // TCP not connected |
---|
| 1394 | { |
---|
| 1395 | |
---|
| 1396 | #if DEBUG_SOCKET_CLOSE |
---|
| 1397 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1398 | if( cycle > DEBUG_DEV_NIC_TX ) |
---|
| 1399 | printk("\n[%s] thread[%x,%x] socket[%x,%d] %s / destroy socket / cycle %d\n", |
---|
| 1400 | __FUNCTION__, this->process->pid, this->trdid, pid, fdid, |
---|
| 1401 | socket_state_str( socket_state ), cycle ); |
---|
| 1402 | #endif |
---|
| 1403 | // directly destroy socket |
---|
| 1404 | socket_destroy( file_xp ); |
---|
| 1405 | |
---|
| 1406 | return 0; |
---|
| 1407 | } |
---|
| 1408 | else // TCP connected |
---|
| 1409 | { |
---|
| 1410 | // get pointers on NIC_TX[index] chdev |
---|
| 1411 | xptr_t tx_chdev_xp = chdev_dir.nic_tx[nic_channel]; |
---|
| 1412 | chdev_t * tx_chdev_ptr = GET_PTR( tx_chdev_xp ); |
---|
| 1413 | cxy_t tx_chdev_cxy = GET_CXY( tx_chdev_xp ); |
---|
| 1414 | |
---|
| 1415 | // get pointers on NIC_TX[channel] server thread |
---|
| 1416 | tx_server_ptr = hal_remote_lpt( XPTR( tx_chdev_cxy , &tx_chdev_ptr->server )); |
---|
| 1417 | tx_server_xp = XPTR( tx_chdev_cxy , tx_server_ptr ); |
---|
| 1418 | |
---|
| 1419 | // register command arguments in socket descriptor |
---|
| 1420 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_cmd ), CMD_TX_CLOSE ); |
---|
| 1421 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->tx_client ), client_xp ); |
---|
| 1422 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_valid ), true ); |
---|
| 1423 | |
---|
| 1424 | // unblock NIC_TX server thread |
---|
| 1425 | thread_unblock( tx_server_xp , THREAD_BLOCKED_CLIENT ); |
---|
| 1426 | |
---|
| 1427 | // release socket lock |
---|
| 1428 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1429 | |
---|
| 1430 | #if DEBUG_SOCKET_CLOSE |
---|
| 1431 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1432 | if( DEBUG_SOCKET_CLOSE < cycle ) |
---|
| 1433 | printk("\n[%s] thread[%x,%x] socket[%x,%d] blocks on <IO> waiting close / cycle %d \n", |
---|
| 1434 | __FUNCTION__, pid, this->trdid, pid, fdid, cycle ); |
---|
| 1435 | #endif |
---|
| 1436 | // block itself and deschedule |
---|
| 1437 | thread_block( client_xp , THREAD_BLOCKED_IO ); |
---|
| 1438 | sched_yield( "blocked in close" ); |
---|
| 1439 | |
---|
| 1440 | #if DEBUG_SOCKET_CLOSE |
---|
| 1441 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1442 | if( DEBUG_SOCKET_CLOSE < cycle ) |
---|
| 1443 | printk("\n[%s] thread[%x,%x] socket[%x,%d] / resumes / cycle %d \n", |
---|
| 1444 | __FUNCTION__, pid, this->trdid, pid, fdid, cycle ); |
---|
| 1445 | #endif |
---|
| 1446 | // take socket lock |
---|
| 1447 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 1448 | |
---|
| 1449 | // get socket state & command status |
---|
| 1450 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state ) ); |
---|
| 1451 | cmd_status = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_sts) ); |
---|
| 1452 | cmd_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_valid ) ); |
---|
| 1453 | |
---|
| 1454 | assert( (((socket_state == TCP_STATE_CLOSED) || (cmd_status != CMD_STS_SUCCESS)) |
---|
| 1455 | && (cmd_valid == false)), |
---|
| 1456 | "illegal socket state when client thread resumes after TX_CLOSE\n" |
---|
| 1457 | " socket_state = %s / cmd_status = %d / cmd_valid = %d\n", |
---|
| 1458 | socket_state_str(socket_state), cmd_status, cmd_valid ); |
---|
| 1459 | |
---|
| 1460 | // reset socket.tx_client |
---|
| 1461 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_client ) , XPTR_NULL ); |
---|
| 1462 | |
---|
| 1463 | if( cmd_status != CMD_STS_SUCCESS ) // error reported |
---|
| 1464 | { |
---|
| 1465 | printk("\n[ERROR] in %s for command TX_CLOSE / socket[%x,%d] / thread[%x,%x]\n", |
---|
| 1466 | __FUNCTION__, pid, fdid, pid, this->trdid ); |
---|
| 1467 | return -1; |
---|
| 1468 | } |
---|
| 1469 | else // success |
---|
| 1470 | { |
---|
| 1471 | |
---|
| 1472 | #if DEBUG_SOCKET_CLOSE |
---|
| 1473 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1474 | if( DEBUG_SOCKET_CLOSE < cycle ) |
---|
| 1475 | printk("\n[%s] thread[%x,%x] socket[%x,%d] / destroy socket / cycle %d\n", |
---|
| 1476 | __FUNCTION__, pid, this->trdid, pid, fdid, socket_state_str(socket_state) , cycle ); |
---|
| 1477 | #endif |
---|
| 1478 | // destroy socket |
---|
| 1479 | socket_destroy( file_xp ); |
---|
| 1480 | |
---|
| 1481 | return 0; |
---|
| 1482 | } |
---|
| 1483 | } // end if TCP |
---|
| 1484 | } // end socket_close() |
---|
| 1485 | |
---|
| 1486 | //////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1487 | // This static and blocking function is executed by an user thread calling one of the |
---|
| 1488 | // four functions: socket_send() / socket_recv() / socket_sendto() / socket_recvfrom() |
---|
| 1489 | // It can be used for both UDP and TCP sockets. |
---|
| 1490 | //////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1491 | // @ is_send : send when true / receive when false. |
---|
| 1492 | // @ fdid : socket identifier. |
---|
| 1493 | // @ u_buf : pointer on user buffer in user space. |
---|
| 1494 | // @ length : number of bytes. |
---|
| 1495 | // @ explicit : explicit remote IP address and port when true. |
---|
| 1496 | //////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1497 | // Implementation note : The behavior is different for SEND & RECV |
---|
| 1498 | // - For a SEND, the client thread checks that there is no TX command registered |
---|
| 1499 | // in the socket. It registers the command arguments in the socket descriptor |
---|
| 1500 | // (tx_client, tx_cmd, tx_buf, tx_len). Then the client thread unblocks the |
---|
| 1501 | // TX server thread from the BLOCKED_CLIENT condition, blocks itself on the |
---|
| 1502 | // BLOCKED_IO condition, and deschedules. It is unblocked by the TX server thread |
---|
| 1503 | // when the last byte has been sent (for UDP) or acknowledged (for TCP). |
---|
| 1504 | // When the client thread resumes, it reset the command in socket, and returns. |
---|
| 1505 | // - For a RECV, the client thread checks that there is no RX command registered |
---|
| 1506 | // in the socket. It registers itself in socket (rx_client). It checks the status |
---|
| 1507 | // of the receive buffer. It the rx_buf is empty, it blocks on the BLOCKED_IO |
---|
| 1508 | // condition, and deschedules. It is unblocked by the RX server thread when an UDP |
---|
| 1509 | // packet or TCP segment has been writen in the rx_buf. When it resumes, it moves |
---|
| 1510 | // the available data from the rx_buf to the user buffer, reset its registration |
---|
| 1511 | // in socket (reset the rx_buf for an UDP socket), and returns. |
---|
| 1512 | //////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1513 | int socket_move_data( bool_t is_send, |
---|
| 1514 | uint32_t fdid, |
---|
| 1515 | uint8_t * u_buf, |
---|
| 1516 | uint32_t length, |
---|
| 1517 | bool_t explicit, |
---|
| 1518 | uint32_t explicit_addr, |
---|
| 1519 | uint32_t explicit_port ) |
---|
| 1520 | { |
---|
| 1521 | vfs_inode_type_t file_type; // file descriptor type |
---|
| 1522 | socket_t * socket_ptr; // local pointer on socket descriptor |
---|
| 1523 | uint32_t socket_state; // current socket state |
---|
| 1524 | uint32_t socket_type; // socket type (UDP/TCP) |
---|
| 1525 | uint32_t nic_channel; // NIC channel for this socket |
---|
| 1526 | xptr_t socket_lock_xp; // extended pointer on socket lock |
---|
| 1527 | xptr_t file_xp; // extended pointer on file descriptor |
---|
| 1528 | vfs_file_t * file_ptr; |
---|
| 1529 | cxy_t file_cxy; |
---|
| 1530 | xptr_t chdev_xp; // extended pointer on NIC_TX[channel] chdev |
---|
| 1531 | chdev_t * chdev_ptr; |
---|
| 1532 | cxy_t chdev_cxy; |
---|
| 1533 | uint32_t remote_addr; |
---|
| 1534 | uint32_t remote_port; |
---|
| 1535 | uint32_t buf_status; // number of bytes in rx_buf |
---|
| 1536 | int32_t moved_bytes; // total number of moved bytes (fot return) |
---|
| 1537 | xptr_t server_xp; // extended pointer on NIC_TX / NIC_RX server thread |
---|
| 1538 | thread_t * server_ptr; // local pointer on NIC_TX / NIC_RX server thread |
---|
| 1539 | kmem_req_t req; // KCM request for TX kernel buffer |
---|
| 1540 | uint8_t * tx_buf; // kernel buffer for TX transfer |
---|
| 1541 | bool_t cmd_valid; // from socket descriptor |
---|
| 1542 | uint32_t cmd_status; // from socket descriptor |
---|
| 1543 | uint32_t tx_todo; // from socket descriptor |
---|
| 1544 | |
---|
| 1545 | thread_t * this = CURRENT_THREAD; |
---|
| 1546 | process_t * process = this->process; |
---|
| 1547 | |
---|
| 1548 | // build extended pointer on client thread |
---|
| 1549 | xptr_t client_xp = XPTR( local_cxy , this ); |
---|
| 1550 | |
---|
| 1551 | // get pointers on file descriptor identifying the socket |
---|
| 1552 | file_xp = process_fd_get_xptr_from_local( process , fdid ); |
---|
| 1553 | file_ptr = GET_PTR( file_xp ); |
---|
| 1554 | file_cxy = GET_CXY( file_xp ); |
---|
| 1555 | |
---|
| 1556 | if( file_xp == XPTR_NULL ) |
---|
| 1557 | { |
---|
| 1558 | printk("\n[ERROR] in %s : undefined fdid %d / thread%x,%x]\n", |
---|
| 1559 | __FUNCTION__, fdid , process->pid, this->trdid ); |
---|
| 1560 | return -1; |
---|
| 1561 | } |
---|
| 1562 | |
---|
| 1563 | // get file type and socket pointer |
---|
| 1564 | file_type = hal_remote_l32( XPTR( file_cxy , &file_ptr->type ) ); |
---|
| 1565 | |
---|
| 1566 | // get local pointer on socket |
---|
| 1567 | socket_ptr = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
| 1568 | |
---|
| 1569 | // check file descriptor type |
---|
| 1570 | if( file_type != INODE_TYPE_SOCK ) |
---|
| 1571 | { |
---|
| 1572 | printk("\n[ERROR] in %s : illegal file type %s / socket[%x,%d]\n", |
---|
| 1573 | __FUNCTION__, vfs_inode_type_str(file_type), process->pid, fdid ); |
---|
| 1574 | return -1; |
---|
| 1575 | } |
---|
| 1576 | |
---|
| 1577 | // build extended pointer on lock protecting socket |
---|
| 1578 | socket_lock_xp = XPTR( file_cxy , &socket_ptr->lock ); |
---|
| 1579 | |
---|
| 1580 | // take the socket lock |
---|
| 1581 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 1582 | |
---|
| 1583 | // get socket type, state, and channel |
---|
| 1584 | socket_type = hal_remote_l32( XPTR( file_cxy , &socket_ptr->type )); |
---|
| 1585 | socket_state = hal_remote_l32( XPTR( file_cxy , &socket_ptr->state )); |
---|
| 1586 | nic_channel = hal_remote_l32( XPTR( file_cxy , &socket_ptr->nic_channel )); |
---|
| 1587 | |
---|
| 1588 | // handle the explicit remote address and port |
---|
| 1589 | if( socket_type == SOCK_DGRAM ) // UDP socket |
---|
| 1590 | { |
---|
| 1591 | if( socket_state == UDP_STATE_UNBOUND ) |
---|
| 1592 | { |
---|
| 1593 | // release socket lock |
---|
| 1594 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1595 | |
---|
| 1596 | printk("\n[ERROR] in %s : SEND/RECV for socket[%x,%d] in state %s\n", |
---|
| 1597 | __FUNCTION__, process->pid, fdid, socket_state_str(socket_state) ); |
---|
| 1598 | return -1; |
---|
| 1599 | } |
---|
| 1600 | |
---|
| 1601 | if( explicit ) |
---|
| 1602 | { |
---|
| 1603 | // update remote IP address and port into socket descriptor |
---|
| 1604 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->remote_addr ), explicit_addr ); |
---|
| 1605 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->remote_port ), explicit_port ); |
---|
| 1606 | |
---|
| 1607 | // update socket state if required |
---|
| 1608 | if( socket_state == UDP_STATE_BOUND ) |
---|
| 1609 | { |
---|
| 1610 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->state ), UDP_STATE_ESTAB ); |
---|
| 1611 | } |
---|
| 1612 | } |
---|
| 1613 | } |
---|
| 1614 | else // TCP socket |
---|
| 1615 | { |
---|
| 1616 | if( explicit ) |
---|
| 1617 | { |
---|
| 1618 | // get remote IP address and port from socket descriptor |
---|
| 1619 | remote_addr = hal_remote_l32( XPTR( file_cxy , &socket_ptr->remote_addr )); |
---|
| 1620 | remote_port = hal_remote_l32( XPTR( file_cxy , &socket_ptr->remote_port )); |
---|
| 1621 | |
---|
| 1622 | if( (remote_addr != explicit_addr) || (remote_port != explicit_port) ) |
---|
| 1623 | { |
---|
| 1624 | // release socket lock |
---|
| 1625 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1626 | |
---|
| 1627 | printk("\n[ERROR] in %s : wrong expliciy access for socket[%x,%d]\n", |
---|
| 1628 | __FUNCTION__, process->pid, fdid ); |
---|
| 1629 | return -1; |
---|
| 1630 | } |
---|
| 1631 | } |
---|
| 1632 | } |
---|
| 1633 | |
---|
| 1634 | /////////////////////////////////////////////////////// |
---|
| 1635 | if( is_send ) // TX_SEND command |
---|
| 1636 | { |
---|
| 1637 | |
---|
| 1638 | #if DEBUG_SOCKET_SEND |
---|
| 1639 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 1640 | if (DEBUG_SOCKET_SEND < cycle ) |
---|
| 1641 | printk("\n[%s] thread[%x,%x] received SEND command for socket[%x,%d] / length %d / cycle %d\n", |
---|
| 1642 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, length, cycle ); |
---|
| 1643 | #endif |
---|
| 1644 | // check no previous TX command |
---|
| 1645 | if( (hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_valid )) == true) || |
---|
| 1646 | (hal_remote_l64( XPTR( file_cxy , &socket_ptr->tx_client)) != XPTR_NULL) ) |
---|
| 1647 | { |
---|
| 1648 | // release socket lock |
---|
| 1649 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1650 | |
---|
| 1651 | printk("\n[ERROR] in %s : previous TX command / socket[%x,%d] / thread[%x,%x]\n", |
---|
| 1652 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid ); |
---|
| 1653 | return -1; |
---|
| 1654 | } |
---|
| 1655 | |
---|
| 1656 | // allocate a temporary kernel buffer |
---|
| 1657 | req.type = KMEM_KCM; |
---|
| 1658 | req.order = bits_log2( length ); |
---|
| 1659 | req.flags = AF_NONE; |
---|
| 1660 | tx_buf = kmem_alloc( &req ); |
---|
| 1661 | |
---|
| 1662 | if( tx_buf == NULL ) |
---|
| 1663 | { |
---|
| 1664 | // release socket lock |
---|
| 1665 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1666 | |
---|
| 1667 | printk("\n[ERROR] in %s : no memory for tx_buf / socket[%x,%d] / thread[%x,%x]\n", |
---|
| 1668 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid ); |
---|
| 1669 | return -1; |
---|
| 1670 | } |
---|
| 1671 | |
---|
| 1672 | // copy data from user u_buf to kernel tx_buf |
---|
| 1673 | hal_copy_from_uspace( XPTR( local_cxy , tx_buf ), |
---|
| 1674 | u_buf, |
---|
| 1675 | length ); |
---|
| 1676 | |
---|
| 1677 | // register command in socket descriptor |
---|
| 1678 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->tx_client ) , client_xp ); |
---|
| 1679 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_cmd ) , CMD_TX_SEND ); |
---|
| 1680 | hal_remote_spt( XPTR( file_cxy , &socket_ptr->tx_buf ) , tx_buf ); |
---|
| 1681 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_len ) , length ); |
---|
| 1682 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_todo ) , length ); |
---|
| 1683 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->tx_valid ) , true ); |
---|
| 1684 | |
---|
| 1685 | // release socket lock |
---|
| 1686 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1687 | |
---|
| 1688 | // get pointers on relevant chdev |
---|
| 1689 | chdev_xp = chdev_dir.nic_tx[nic_channel]; |
---|
| 1690 | chdev_ptr = GET_PTR( chdev_xp ); |
---|
| 1691 | chdev_cxy = GET_CXY( chdev_xp ); |
---|
| 1692 | |
---|
| 1693 | // get pointers on NIC_TX[channel] server thread |
---|
| 1694 | server_ptr = hal_remote_lpt( XPTR( chdev_cxy , &chdev_ptr->server )); |
---|
| 1695 | server_xp = XPTR( chdev_cxy , server_ptr ); |
---|
| 1696 | |
---|
| 1697 | // unblocks the NIC_TX server thread |
---|
| 1698 | thread_unblock( server_xp , THREAD_BLOCKED_CLIENT ); |
---|
| 1699 | |
---|
| 1700 | #if DEBUG_SOCKET_SEND |
---|
| 1701 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1702 | if( DEBUG_SOCKET_SEND < cycle ) |
---|
| 1703 | printk("\n[%s] thread[%x,%x] socket[%x,%d] register SEND => blocks on <IO> / cycle %d\n", |
---|
| 1704 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 1705 | #endif |
---|
| 1706 | // client thread blocks itself and deschedules |
---|
| 1707 | thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_IO ); |
---|
| 1708 | sched_yield( "blocked in nic_io" ); |
---|
| 1709 | |
---|
| 1710 | #if DEBUG_SOCKET_SEND |
---|
| 1711 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1712 | if( DEBUG_SOCKET_SEND < cycle ) |
---|
| 1713 | printk("\n[%s] thread[%x,%x] socket[%x,%d] for SEND resumes / cycle %d\n", |
---|
| 1714 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 1715 | #endif |
---|
| 1716 | // take socket lock |
---|
| 1717 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 1718 | |
---|
| 1719 | // get tx_valid, tx_todo, and tx_sts |
---|
| 1720 | tx_todo = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_todo )); |
---|
| 1721 | cmd_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_valid )); |
---|
| 1722 | cmd_status = hal_remote_l32( XPTR( file_cxy , &socket_ptr->tx_sts )); |
---|
| 1723 | |
---|
| 1724 | // reset tx_client in socket descriptor |
---|
| 1725 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->tx_client ) , XPTR_NULL ); |
---|
| 1726 | |
---|
| 1727 | // release socket lock |
---|
| 1728 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1729 | |
---|
| 1730 | // check SEND command completed when TX client thread resumes |
---|
| 1731 | assert( (((tx_todo == 0) || (cmd_status != CMD_STS_SUCCESS)) && (cmd_valid == false)), |
---|
| 1732 | "illegal socket state when client thread resumes after TX_SEND\n" |
---|
| 1733 | " tx_todo = %d / tx_status = %d / tx_valid = %d\n", |
---|
| 1734 | tx_todo, cmd_status, cmd_valid ); |
---|
| 1735 | |
---|
| 1736 | // release the tx_buf |
---|
| 1737 | req.ptr = tx_buf; |
---|
| 1738 | kmem_free( &req ); |
---|
| 1739 | |
---|
| 1740 | if( cmd_status != CMD_STS_SUCCESS ) |
---|
| 1741 | { |
---|
| 1742 | |
---|
| 1743 | #if DEBUG_SOCKET_SEND |
---|
| 1744 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1745 | if( DEBUG_SOCKET_RECV < cycle ) |
---|
| 1746 | printk("\n[%s] error %s for TX_SEND / socket[%x,%d] / thread[%x,%x]\n", |
---|
| 1747 | __FUNCTION__, socket_cmd_sts_str(cmd_status), process->pid, fdid, process->pid, this->trdid ); |
---|
| 1748 | #endif |
---|
| 1749 | return -1; |
---|
| 1750 | } |
---|
| 1751 | else |
---|
| 1752 | { |
---|
| 1753 | |
---|
| 1754 | #if DEBUG_SOCKET_SEND |
---|
| 1755 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1756 | if (DEBUG_SOCKET_SEND < cycle ) |
---|
| 1757 | printk("\n[%s] thread[%x,%x] success for SEND / socket[%x,%d] / length %d / cycle %d\n", |
---|
| 1758 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, length, cycle ); |
---|
| 1759 | #endif |
---|
| 1760 | return length; |
---|
| 1761 | } |
---|
| 1762 | |
---|
| 1763 | } // end TX_SEND command |
---|
| 1764 | |
---|
| 1765 | //////////////////////////////////////////////////////// |
---|
| 1766 | else // RX_RECV command |
---|
| 1767 | { |
---|
| 1768 | |
---|
| 1769 | #if DEBUG_SOCKET_RECV |
---|
| 1770 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 1771 | if (DEBUG_SOCKET_SEND < cycle ) |
---|
| 1772 | printk("\n[%s] thread[%x,%x] received RECV command for socket[%x,%d] / length %d / cycle %d\n", |
---|
| 1773 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, length, cycle ); |
---|
| 1774 | #endif |
---|
| 1775 | // check no previous RX command |
---|
| 1776 | if( (hal_remote_l32( XPTR( file_cxy , &socket_ptr->rx_valid )) == true) || |
---|
| 1777 | (hal_remote_l64( XPTR( file_cxy , &socket_ptr->rx_client)) != XPTR_NULL) ) |
---|
| 1778 | { |
---|
| 1779 | // release socket lock |
---|
| 1780 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1781 | |
---|
| 1782 | printk("\n[ERROR] in %s : previous RX command on socket[%x,%d] / thread[%x,%x]\n", |
---|
| 1783 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid ); |
---|
| 1784 | return -1; |
---|
| 1785 | } |
---|
| 1786 | |
---|
| 1787 | // return EOF for a TCP socket not in ESTAB state |
---|
| 1788 | if( (socket_type == SOCK_STREAM ) && (socket_state != TCP_STATE_ESTAB) ) |
---|
| 1789 | { |
---|
| 1790 | // release socket lock |
---|
| 1791 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1792 | |
---|
| 1793 | #if DEBUG_SOCKET_RECV |
---|
| 1794 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 1795 | if( DEBUG_SOCKET_RECV < cycle ) |
---|
| 1796 | printk("\n[%s] thread[%x,%x] socket[%x,%d] TCP connection closed / cycle %d\n", |
---|
| 1797 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 1798 | #endif |
---|
| 1799 | return 0; |
---|
| 1800 | } |
---|
| 1801 | // build extended pointer on socket.rx_buf |
---|
| 1802 | xptr_t rx_buf_xp = XPTR( file_cxy , &socket_ptr->rx_buf ); |
---|
| 1803 | |
---|
| 1804 | // get rx_buf status |
---|
| 1805 | buf_status = remote_buf_status( rx_buf_xp ); |
---|
| 1806 | |
---|
| 1807 | if( buf_status == 0 ) |
---|
| 1808 | { |
---|
| 1809 | // registers RX_RECV command in socket descriptor |
---|
| 1810 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->rx_cmd ) , CMD_RX_RECV ); |
---|
| 1811 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->rx_client ) , client_xp ); |
---|
| 1812 | hal_remote_s32( XPTR( file_cxy , &socket_ptr->rx_valid ) , true ); |
---|
| 1813 | |
---|
| 1814 | // release socket lock |
---|
| 1815 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1816 | |
---|
| 1817 | #if DEBUG_SOCKET_RECV |
---|
| 1818 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 1819 | if( DEBUG_SOCKET_RECV < cycle ) |
---|
| 1820 | printk("\n[%s] thread[%x,%x] socket[%x,%d] rx_buf empty => blocks on <IO> / cycle %d\n", |
---|
| 1821 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 1822 | #endif |
---|
| 1823 | // client thread blocks itself and deschedules |
---|
| 1824 | thread_block( XPTR( local_cxy , this ) , THREAD_BLOCKED_IO ); |
---|
| 1825 | sched_yield( "blocked in nic_io" ); |
---|
| 1826 | |
---|
| 1827 | #if DEBUG_SOCKET_RECV |
---|
| 1828 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1829 | if( DEBUG_SOCKET_RECV < cycle ) |
---|
| 1830 | printk("\n[%s] thread[%x,%x] socket[%x,%d] for RECV resumes / cycle %d\n", |
---|
| 1831 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, cycle ); |
---|
| 1832 | #endif |
---|
| 1833 | // take socket lock |
---|
| 1834 | remote_queuelock_acquire( socket_lock_xp ); |
---|
| 1835 | |
---|
| 1836 | // get rx_sts and rx_buf status |
---|
| 1837 | cmd_valid = hal_remote_l32( XPTR( file_cxy , &socket_ptr->rx_valid )); |
---|
| 1838 | cmd_status = hal_remote_l32( XPTR( file_cxy , &socket_ptr->rx_sts )); |
---|
| 1839 | buf_status = remote_buf_status( rx_buf_xp ); |
---|
| 1840 | |
---|
| 1841 | assert( (((buf_status != 0) || (cmd_status != CMD_STS_SUCCESS)) && (cmd_valid == false)), |
---|
| 1842 | "illegal socket state when client thread resumes after RX_RECV\n" |
---|
| 1843 | " buf_status = %d / rx_sts = %d / rx_valid = %d\n", |
---|
| 1844 | buf_status , cmd_status , cmd_valid ); |
---|
| 1845 | |
---|
| 1846 | // reset rx_client in socket descriptor |
---|
| 1847 | hal_remote_s64( XPTR( file_cxy , &socket_ptr->rx_client ) , XPTR_NULL ); |
---|
| 1848 | |
---|
| 1849 | // reset rx_buf for an UDP socket |
---|
| 1850 | if( socket_type == SOCK_DGRAM ) remote_buf_reset( rx_buf_xp ); |
---|
| 1851 | |
---|
| 1852 | // release socket lock |
---|
| 1853 | remote_queuelock_release( socket_lock_xp ); |
---|
| 1854 | |
---|
| 1855 | if( cmd_status == CMD_STS_EOF ) // EOF (remote close) reported |
---|
| 1856 | { |
---|
| 1857 | |
---|
| 1858 | #if DEBUG_SOCKET_RECV |
---|
| 1859 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1860 | if( DEBUG_SOCKET_RECV < cycle ) |
---|
| 1861 | printk("\n[%s] EOF for RX_RECV / socket[%x,%d] / thread[%x,%x]\n", |
---|
| 1862 | __FUNCTION__, process->pid, fdid, process->pid, this->trdid ); |
---|
| 1863 | #endif |
---|
| 1864 | return 0; |
---|
| 1865 | } |
---|
| 1866 | else if( cmd_status != CMD_STS_SUCCESS ) // other error reported |
---|
| 1867 | { |
---|
| 1868 | |
---|
| 1869 | #if DEBUG_SOCKET_RECV |
---|
| 1870 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1871 | if( DEBUG_SOCKET_RECV < cycle ) |
---|
| 1872 | printk("\n[%s] error %s for RX_RECV / socket[%x,%d] / thread[%x,%x]\n", |
---|
| 1873 | __FUNCTION__, socket_cmd_sts_str(cmd_status), process->pid, fdid, process->pid, this->trdid ); |
---|
| 1874 | #endif |
---|
| 1875 | return -1; |
---|
| 1876 | } |
---|
| 1877 | |
---|
| 1878 | } |
---|
| 1879 | |
---|
| 1880 | // number of bytes extracted from rx_buf cannot be larger than u_buf size |
---|
| 1881 | moved_bytes = ( length < buf_status ) ? length : buf_status; |
---|
| 1882 | |
---|
| 1883 | // move data from kernel rx_buf to user u_buf |
---|
| 1884 | remote_buf_get_to_user( rx_buf_xp, |
---|
| 1885 | u_buf, |
---|
| 1886 | moved_bytes ); |
---|
| 1887 | #if DEBUG_SOCKET_SEND |
---|
| 1888 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 1889 | if (DEBUG_SOCKET_SEND < cycle ) |
---|
| 1890 | printk("\n[%s] thread[%x,%x] success for RECV / socket[%x,%d] / length %d / cycle %d\n", |
---|
| 1891 | __FUNCTION__, process->pid, this->trdid, process->pid, fdid, moved_bytes, cycle ); |
---|
| 1892 | #endif |
---|
| 1893 | return moved_bytes; |
---|
| 1894 | |
---|
| 1895 | } // end RX_RECV command |
---|
| 1896 | } // end socket_move_data() |
---|
| 1897 | |
---|
| 1898 | |
---|
| 1899 | /////////////////////////////////// |
---|
| 1900 | int socket_send( uint32_t fdid, |
---|
| 1901 | uint8_t * u_buf, |
---|
| 1902 | uint32_t length ) |
---|
| 1903 | { |
---|
| 1904 | int nbytes = socket_move_data( true, // SEND |
---|
| 1905 | fdid, |
---|
| 1906 | u_buf, |
---|
| 1907 | length, |
---|
| 1908 | false, 0, 0 ); // no explicit remote socket |
---|
| 1909 | return nbytes; |
---|
| 1910 | |
---|
| 1911 | } // end socket_send() |
---|
| 1912 | |
---|
| 1913 | ///////////////////////////////////// |
---|
| 1914 | int socket_sendto( uint32_t fdid, |
---|
| 1915 | uint8_t * u_buf, |
---|
| 1916 | uint32_t length, |
---|
| 1917 | uint32_t remote_addr, |
---|
| 1918 | uint32_t remote_port ) |
---|
| 1919 | { |
---|
| 1920 | int nbytes = socket_move_data( true, // SEND |
---|
| 1921 | fdid, |
---|
| 1922 | u_buf, |
---|
| 1923 | length, |
---|
| 1924 | true, // explicit remote socket |
---|
| 1925 | remote_addr, |
---|
| 1926 | remote_port ); |
---|
| 1927 | return nbytes; |
---|
| 1928 | |
---|
| 1929 | } // end socket_sendto() |
---|
| 1930 | |
---|
| 1931 | /////////////////////////////////// |
---|
| 1932 | int socket_recv( uint32_t fdid, |
---|
| 1933 | uint8_t * u_buf, |
---|
| 1934 | uint32_t length ) |
---|
| 1935 | { |
---|
| 1936 | int nbytes = socket_move_data( false, // RECV |
---|
| 1937 | fdid, |
---|
| 1938 | u_buf, |
---|
| 1939 | length, |
---|
| 1940 | false, 0, 0 ); // no explicit remote socket |
---|
| 1941 | return nbytes; |
---|
| 1942 | |
---|
| 1943 | } // end socket_recv() |
---|
| 1944 | |
---|
| 1945 | |
---|
| 1946 | /////////////////////////////////////// |
---|
| 1947 | int socket_recvfrom( uint32_t fdid, |
---|
| 1948 | uint8_t * u_buf, |
---|
| 1949 | uint32_t length, |
---|
| 1950 | uint32_t remote_addr, |
---|
| 1951 | uint32_t remote_port ) |
---|
| 1952 | { |
---|
| 1953 | int nbytes = socket_move_data( false, // RECV |
---|
| 1954 | fdid, |
---|
| 1955 | u_buf, |
---|
| 1956 | length, |
---|
| 1957 | true, // explicit remote socket |
---|
| 1958 | remote_addr, |
---|
| 1959 | remote_port ); |
---|
| 1960 | return nbytes; |
---|
| 1961 | |
---|
| 1962 | } // end socket_recvfrom() |
---|
| 1963 | |
---|
| 1964 | //////////////////////////////////////////// |
---|
| 1965 | void socket_display( xptr_t socket_xp, |
---|
| 1966 | const char * func_str ) |
---|
| 1967 | { |
---|
| 1968 | socket_t * socket = GET_PTR( socket_xp ); |
---|
| 1969 | cxy_t cxy = GET_CXY( socket_xp ); |
---|
| 1970 | |
---|
| 1971 | pid_t pid = hal_remote_l32( XPTR( cxy , &socket->pid )); |
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| 1972 | fdid_t fdid = hal_remote_l32( XPTR( cxy , &socket->fdid )); |
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| 1973 | uint32_t state = hal_remote_l32( XPTR( cxy , &socket->state )); |
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| 1974 | uint32_t channel = hal_remote_l32( XPTR( cxy , &socket->nic_channel )); |
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| 1975 | uint32_t local_addr = hal_remote_l32( XPTR( cxy , &socket->local_addr )); |
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| 1976 | uint32_t local_port = hal_remote_l32( XPTR( cxy , &socket->local_port )); |
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| 1977 | uint32_t remote_addr = hal_remote_l32( XPTR( cxy , &socket->remote_addr )); |
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| 1978 | uint32_t remote_port = hal_remote_l32( XPTR( cxy , &socket->remote_port )); |
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| 1979 | uint32_t tx_valid = hal_remote_l32( XPTR( cxy , &socket->tx_valid )); |
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| 1980 | uint32_t tx_cmd = hal_remote_l32( XPTR( cxy , &socket->tx_cmd )); |
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| 1981 | uint32_t tx_sts = hal_remote_l32( XPTR( cxy , &socket->tx_sts )); |
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| 1982 | uint32_t tx_len = hal_remote_l32( XPTR( cxy , &socket->tx_len )); |
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| 1983 | uint32_t tx_todo = hal_remote_l32( XPTR( cxy , &socket->tx_todo )); |
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| 1984 | uint32_t tx_una = hal_remote_l32( XPTR( cxy , &socket->tx_una )); |
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| 1985 | uint32_t tx_nxt = hal_remote_l32( XPTR( cxy , &socket->tx_nxt )); |
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| 1986 | uint32_t tx_wnd = hal_remote_l32( XPTR( cxy , &socket->tx_wnd )); |
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| 1987 | uint32_t rx_valid = hal_remote_l32( XPTR( cxy , &socket->rx_valid )); |
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| 1988 | uint32_t rx_cmd = hal_remote_l32( XPTR( cxy , &socket->rx_cmd )); |
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| 1989 | uint32_t rx_sts = hal_remote_l32( XPTR( cxy , &socket->rx_sts )); |
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| 1990 | uint32_t rx_nxt = hal_remote_l32( XPTR( cxy , &socket->rx_nxt )); |
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| 1991 | uint32_t rx_wnd = hal_remote_l32( XPTR( cxy , &socket->rx_wnd )); |
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| 1992 | uint32_t rx_irs = hal_remote_l32( XPTR( cxy , &socket->rx_irs )); |
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| 1993 | |
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| 1994 | if( func_str == NULL ) |
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| 1995 | { |
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| 1996 | printk("\n****** socket[%x,%d] / xptr[%x,%x]*****\n", |
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| 1997 | pid, fdid, cxy, socket ); |
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| 1998 | } |
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| 1999 | else |
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| 2000 | { |
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| 2001 | printk("\n***** socket[%x,%d] / xptr[%x,%x] / from %s *****\n", |
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| 2002 | pid, fdid, cxy, socket, func_str ); |
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| 2003 | } |
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| 2004 | printk(" - state %s / channel %d\n" |
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| 2005 | " - local_addr %x / local_port %x\n" |
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| 2006 | " - remote_addr %x / remote_port %x\n" |
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| 2007 | " - tx_valid %d (%s) / tx_sts %d / tx_len %x / tx_todo %x\n" |
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| 2008 | " - tx_una %x / tx_nxt %x / tx_wnd %x\n" |
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| 2009 | " - rx_valid %d (%s) / rx_sts %d\n" |
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| 2010 | " - rx_nxt %x / rx_wnd %x / rx_irs %x\n", |
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| 2011 | socket_state_str(state), channel , |
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| 2012 | local_addr, local_port, |
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| 2013 | remote_addr, remote_port, |
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| 2014 | tx_valid, socket_cmd_type_str(tx_cmd), tx_sts, tx_len, tx_todo, |
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| 2015 | tx_una, tx_nxt, tx_wnd, |
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| 2016 | rx_valid, socket_cmd_type_str(rx_cmd), rx_sts, |
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| 2017 | rx_nxt, rx_wnd, rx_irs ); |
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| 2018 | |
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| 2019 | } // end socket_display() |
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| 2020 | |
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| 2021 | |
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| 2022 | |
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| 2023 | |
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| 2024 | |
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