📄 net_cfg.h
字号:
*
* NET_UDP_APP_API_SEL_SOCK Demultiplex UDP datagrams to BSD sockets ONLY.
* NET_UDP_APP_API_SEL_APP Demultiplex UDP datagrams to application-specific
* connections ONLY.
* NET_UDP_APP_API_SEL_SOCK_APP Demultiplex UDP datagrams to BSD sockets first;
* if NO socket connection found to demultiplex
* a UDP datagram, demultiplex to application-
* specific connection.
*
* See also 'net_udp.c NetUDP_RxPktDemuxDatagram() Note #1'
* & 'net_udp.c NetUDP_RxPktDemuxAppData() Note #1'.
*
* (2) (a) RFC #1122, Section 4.1.3.4 states that "an application MAY optionally ... discard
* ... [or allow] ... received ... UDP datagrams without checksums".
*
* (b) Configure NET_UDP_CFG_RX_CHK_SUM_DISCARD_EN to enable/disable discarding of UDP
* datagrams received with NO computed check-sum :
*
* (1) When ENABLED, ALL UDP datagrams received without a check-sum are discarded.
*
* (2) When DISABLED, ALL UDP datagrams received without a check-sum are flagged so
* that application(s) may handle &/or discard.
*
* See also 'net_udp.c NetUDP_RxPktValidate() Note #4d3A'.
*
* (3) (a) RFC #1122, Section 4.1.3.4 states that "an application MAY optionally be able to
* control whether a UDP checksum will be generated".
*
* (b) Configure NET_UDP_CFG_TX_CHK_SUM_EN to enable/disable transmitting UDP datagrams
* with check-sums :
*
* (1) When ENABLED, ALL UDP datagrams are transmitted with a computed check-sum.
*
* (2) When DISABLED, ALL UDP datagrams are transmitted without a computed check-sum.
*
* See also 'net_udp.c NetUDP_TxPktPrepareHdr() Note #3b'.
*********************************************************************************************************
*/
/* Configure UDP Receive Demultiplex Selection ... */
/* ... (see Note #1) : */
#define NET_UDP_CFG_APP_API_SEL NET_UDP_APP_API_SEL_SOCK
/* Demultiplex & Receive via ... */
/* NET_UDP_APP_API_SEL_SOCK Sockets ONLY */
/* NET_UDP_APP_API_SEL_APP Application ONLY */
/* NET_UDP_APP_API_SEL_SOCK_APP First by Socket, */
/* Next by Application */
/* Configure UDP Receive Check-Sum Discard feature ... */
/* ... (see Note #2b) */
#define NET_UDP_CFG_RX_CHK_SUM_DISCARD_EN DEF_ENABLED
/* DEF_DISABLED UDP Datagrams Received without ... */
/* Check-Sums Validated */
/* DEF_ENABLED UDP Datagrams Received without ... */
/* Check-Sums Discarded */
/* Configure UDP Transmit Check-Sum feature ... */
/* ... (see Note #3b) : */
#define NET_UDP_CFG_TX_CHK_SUM_EN DEF_ENABLED
/* DEF_DISABLED Transmit Check-Sums DISABLED */
/* DEF_ENABLED Transmit Check-Sums ENABLED */
/*$PAGE*/
/*
*********************************************************************************************************
* TRANSMISSION CONTROL PROTOCOL LAYER CONFIGURATION
*
* Note(s) : (1) (a) Configure NET_TCP_CFG_NBR_CONN with the desired number of TCP connection objects.
*
* (b) Since TCP requires network sockets (see 'net_tcp.h Note #2'), the configured number
* of sockets MUST be greater than or equal to the configured number of TCP connections.
*
* See also 'net_sock.h MODULE Note #1',
* 'net_tcp.h MODULE Note #1',
* & 'net_cfg_net.h NETWORK SOCKET LAYER CONFIGURATION Note #4'.
*
* (2) Stevens, TCP/IP Illustrated, Volume 1, 8th Printing, Section 20.4, Page 282 states that
* "4.2BSD defaulted the send and receive buffer" (i.e. socket buffer/TCP window) "to 2048
* bytes each. With 4.3BSD both were increased to 4096 bytes ... Other systems, such as
* ... 4.4BSD ... use larger default buffer sizes, such as 8192 or 16384 bytes.
*
* The common default of 4096 bytes ... is not optimal for Ethernet. An approximate 40%
* increase in throughput is seen by just increasing both buffers to 16384 bytes."
*
* (3) RFC #793, Section 3.3 'Sequence Numbers : Knowing When to Keep Quiet' states that
* "the Maximum Segment Lifetime (MSL) is ... to be 2 minutes ... [but] may be changed
* if experience indicates it is desirable to do so".
*
* See also 'net_tcp.h TCP CONNECTION TIMEOUT DEFINES Note #1'.
*
* (4) RFC #2581, Section 4.2 states that "an ACK ... MUST be generated within 500 ms of the
* arrival of the first unacknowledged packet".
*
* See also 'net_tcp.h TCP CONGESTION CONTROL DEFINES Note #6b'
* & 'net_tcp.c NetTCP_TxConnAck() Note #6a2'.
*
* (5) Configure timeout values in integer number of milliseconds. Timeout values may also
* be configured with network time constant, NET_TMR_TIME_INFINITE, to never timeout.
*********************************************************************************************************
*/
#define NET_TCP_CFG_NBR_CONN 10 /* Configure total number of TCP connections. */
/* Configure TCP connections' window sizes ... */
/* ... in integer number of octets (see Note #2) : */
#define NET_TCP_CFG_RX_WIN_SIZE_OCTET ( 4 * 1460) /* Configure TCP connection receive window size. */
#define NET_TCP_CFG_TX_WIN_SIZE_OCTET ( 6 * 1460) /* Configure TCP connection transmit window size. */
/* Configure TCP connections' default maximum ... */
/* ... segment lifetime timeout (MSL) value, ... */
#define NET_TCP_CFG_TIMEOUT_CONN_MAX_SEG_SEC 1 /* ... in integer seconds (see Note #3). */
/* Configure TCP acknowledgement delay ... */
#define NET_TCP_CFG_TIMEOUT_CONN_ACK_DLY_MS 500 /* ... in integer milliseconds (see Note #4). */
/* Configure TCP timeouts (see Note #5) : */
#define NET_TCP_CFG_TIMEOUT_CONN_RX_Q_MS 3000 /* Configure TCP connection receive queue timeout. */
#define NET_TCP_CFG_TIMEOUT_CONN_TX_Q_MS 3000 /* Configure TCP connection transmit queue timeout. */
/*$PAGE*/
/*
*********************************************************************************************************
* NETWORK SOCKET LAYER CONFIGURATION
*
* Note(s) : (1) Network Socket Layer NOT required for all application interfaces (see 'net_sock.h
* MODULE Note #1').
*
* (2) See 'net_sock.h NETWORK SOCKET FAMILY & PROTOCOL DEFINES Note #1' for supported
* Network Socket Family types.
*
* (3) Configure socket select maximum number of socket events/operations to wait on.
*
* See 'net_sock.c NetSock_Sel() Note #4b'
* & 'net_os.c NetOS_Sock_SelWait() Note #2b2'.
*
* (4) Configure timeout values in integer number of milliseconds. Timeout values may also
* be configured with network time constant, NET_TMR_TIME_INFINITE, to never timeout.
*********************************************************************************************************
*/
/* Configure socket family type (see Note #2) : */
#define NET_SOCK_CFG_FAMILY NET_SOCK_FAMILY_IP_V4
#define NET_SOCK_CFG_NBR_SOCK 10 /* Configure total number of sockets. */
/* Configure socket blocking/non-blocking behavior : */
#define NET_SOCK_CFG_BLOCK_SEL NET_SOCK_BLOCK_SEL_BLOCK
/* NET_SOCK_BLOCK_SEL_DFLT Default blocking; */
/* ... run-time options */
/* ... can override */
/* NET_SOCK_BLOCK_SEL_BLOCK Always block */
/* NET_SOCK_BLOCK_SEL_NO_BLOCK Never block */
/* Configure socket select functionality : */
#define NET_SOCK_CFG_SEL_EN DEF_DISABLED
/* DEF_DISABLED Socket select DISABLED */
/* DEF_ENABLED Socket select ENABLED */
/* Configure maximum number of socket select ... */
#define NET_SOCK_CFG_SEL_NBR_EVENTS_MAX 10 /* ... operations/events to wait on (see Note #3). */
/* Configure stream-type sockets' accept queue ... */
#define NET_SOCK_CFG_CONN_ACCEPT_Q_SIZE_MAX 5 /* ... maximum size. */
#define NET_SOCK_CFG_PORT_NBR_RANDOM_BASE 65000 /* Configure random ports' starting port number. */
/* Configure socket timeout values (see Note #4) : */
#define NET_SOCK_CFG_TIMEOUT_RX_Q_MS 3000 /* Configure socket receive queue timeout. */
#define NET_SOCK_CFG_TIMEOUT_CONN_REQ_MS 10000 /* Configure socket connection request timeout. */
#define NET_SOCK_CFG_TIMEOUT_CONN_ACCEPT_MS 3000 /* Configure socket connection accept timeout. */
#define NET_SOCK_CFG_TIMEOUT_CONN_CLOSE_MS 1000 /* Configure socket connection close timeout. */
/*
*********************************************************************************************************
* BSD 4.x LAYER CONFIGURATION
*
* Note(s) : (1) BSD 4.x Layer API NOT required for all applications (see 'net_bsd.h MODULE Note #1b').
*********************************************************************************************************
*/
/* Configure BSD 4.x Layer API (see Note #1) : */
#define NET_BSD_CFG_API_EN DEF_ENABLED
/* DEF_DISABLED BSD 4.x Layer API DISABLED */
/* DEF_ENABLED BSD 4.x Layer API ENABLED */
/*$PAGE*/
/*
*********************************************************************************************************
* NETWORK CONNECTION MANAGEMENT CONFIGURATION
*
* Note(s) : (1) Network Connection Management NOT required for all application interfaces (see 'net_conn.h
* MODULE Note #1').
*
* (2) See 'net_def.h NETWORK CONNECTION MANAGEMENT DEFINES' for supported Family types.
*
* (3) The configured number of connections MUST be greater than the configured/required/expected
* number of application connections & transport layer connections.
*
* See also 'net_cfg_net.h NETWORK CONNECTION MANAGEMENT CONFIGURATION Note #4'.
*********************************************************************************************************
*/
/* Configure connection family type (see Note #2). */
#define NET_CONN_CFG_FAMILY NET_CONN_FAMILY_IP_V4_SOCK
#define NET_CONN_CFG_NBR_CONN 20 /* Configure total number of connections (see Note #3). */
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -