1 /**************************************************************************/ 2 /* */ 3 /* Copyright (c) Microsoft Corporation. All rights reserved. */ 4 /* */ 5 /* This software is licensed under the Microsoft Software License */ 6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */ 7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ 8 /* and in the root directory of this software. */ 9 /* */ 10 /**************************************************************************/ 11 12 13 /**************************************************************************/ 14 /**************************************************************************/ 15 /** */ 16 /** NetX Component */ 17 /** */ 18 /** Internet Protocol (IP) */ 19 /** */ 20 /**************************************************************************/ 21 /**************************************************************************/ 22 23 #define NX_SOURCE_CODE 24 25 26 /* Include necessary system files. */ 27 28 #include "nx_api.h" 29 #include "nx_ip.h" 30 31 32 /**************************************************************************/ 33 /* */ 34 /* FUNCTION RELEASE */ 35 /* */ 36 /* _nx_ip_auxiliary_packet_pool_set PORTABLE C */ 37 /* 6.1 */ 38 /* AUTHOR */ 39 /* */ 40 /* Yuxin Zhou, Microsoft Corporation */ 41 /* */ 42 /* DESCRIPTION */ 43 /* */ 44 /* This function assigns an auxiliary packet pool to IP instance. */ 45 /* Note in order to utilize the auxiliary packet pool feature, the */ 46 /* symbol NX_ENABLE_DUAL_PACKET_POOL must be defined when building */ 47 /* NetX Duo library. */ 48 /* */ 49 /* INPUT */ 50 /* */ 51 /* ip_ptr Pointer to IP control block */ 52 /* auxiliary_pool Pointer to auxiliary packet */ 53 /* pool */ 54 /* */ 55 /* OUTPUT */ 56 /* */ 57 /* status Completion status */ 58 /* */ 59 /* CALLS */ 60 /* */ 61 /* tx_mutex_get Get protection mutex */ 62 /* tx_mutex_put Put protection mutex */ 63 /* */ 64 /* CALLED BY */ 65 /* */ 66 /* Application */ 67 /* */ 68 /* RELEASE HISTORY */ 69 /* */ 70 /* DATE NAME DESCRIPTION */ 71 /* */ 72 /* 05-19-2020 Yuxin Zhou Initial Version 6.0 */ 73 /* 09-30-2020 Yuxin Zhou Modified comment(s), */ 74 /* resulting in version 6.1 */ 75 /* */ 76 /**************************************************************************/ _nx_ip_auxiliary_packet_pool_set(NX_IP * ip_ptr,NX_PACKET_POOL * auxiliary_pool)77UINT _nx_ip_auxiliary_packet_pool_set(NX_IP *ip_ptr, NX_PACKET_POOL *auxiliary_pool) 78 { 79 80 #ifdef NX_ENABLE_DUAL_PACKET_POOL 81 TX_INTERRUPT_SAVE_AREA 82 83 84 /* Disable interrupts. */ 85 TX_DISABLE 86 87 /* Choose a packet pool with smaller payload size as auxiliary packet pool. */ 88 if (auxiliary_pool -> nx_packet_pool_payload_size > ip_ptr -> nx_ip_default_packet_pool -> nx_packet_pool_payload_size) 89 { 90 ip_ptr -> nx_ip_default_packet_pool = auxiliary_pool; 91 } 92 else 93 { 94 ip_ptr -> nx_ip_auxiliary_packet_pool = auxiliary_pool; 95 } 96 97 /* Restore interrupts. */ 98 TX_RESTORE 99 100 /* Return success to the caller. */ 101 return(NX_SUCCESS); 102 103 #else /* !NX_ENABLE_DUAL_PACKET_POOL */ 104 NX_PARAMETER_NOT_USED(ip_ptr); 105 NX_PARAMETER_NOT_USED(auxiliary_pool); 106 107 return(NX_NOT_SUPPORTED); 108 109 #endif /* NX_ENABLE_DUAL_PACKET_POOL */ 110 } 111 112
