Add code to support per socket tcp window and tcp send buffer size configuration.
if (conn->flags & NETCONN_FLAG_CHECK_WRITESPACE) {
/* If the queued byte- or pbuf-count drops below the configured low-water limit,
let select mark this pcb as writable again. */
- if ((conn->pcb.tcp != NULL) && (tcp_sndbuf(conn->pcb.tcp) > TCP_SNDLOWAT) &&
- (tcp_sndqueuelen(conn->pcb.tcp) < TCP_SNDQUEUELOWAT)) {
+ if ((conn->pcb.tcp != NULL) && (tcp_sndbuf(conn->pcb.tcp) > TCP_SNDLOWAT(conn->pcb.tcp)) &&
+ (tcp_sndqueuelen(conn->pcb.tcp) < TCP_SNDQUEUELOWAT(conn->pcb.tcp))) {
conn->flags &= ~NETCONN_FLAG_CHECK_WRITESPACE;
API_EVENT(conn, NETCONN_EVT_SENDPLUS, 0);
}
/* If the queued byte- or pbuf-count drops below the configured low-water limit,
let select mark this pcb as writable again. */
- if ((conn->pcb.tcp != NULL) && (tcp_sndbuf(conn->pcb.tcp) > TCP_SNDLOWAT) &&
- (tcp_sndqueuelen(conn->pcb.tcp) < TCP_SNDQUEUELOWAT)) {
+ if ((conn->pcb.tcp != NULL) && (tcp_sndbuf(conn->pcb.tcp) > TCP_SNDLOWAT(conn->pcb.tcp) &&
+ (tcp_sndqueuelen(conn->pcb.tcp) < TCP_SNDQUEUELOWAT(conn->pcb.tcp)))) {
conn->flags &= ~NETCONN_FLAG_CHECK_WRITESPACE;
API_EVENT(conn, NETCONN_EVT_SENDPLUS, len);
}
and let poll_tcp check writable space to mark the pcb writable again */
API_EVENT(conn, NETCONN_EVT_SENDMINUS, len);
conn->flags |= NETCONN_FLAG_CHECK_WRITESPACE;
- } else if ((tcp_sndbuf(conn->pcb.tcp) <= TCP_SNDLOWAT) ||
- (tcp_sndqueuelen(conn->pcb.tcp) >= TCP_SNDQUEUELOWAT)) {
+ } else if ((tcp_sndbuf(conn->pcb.tcp) <= TCP_SNDLOWAT(conn->pcb.tcp)) ||
+ (tcp_sndqueuelen(conn->pcb.tcp) >= TCP_SNDQUEUELOWAT(conn->pcb.tcp))) {
/* The queued byte- or pbuf-count exceeds the configured low-water limit,
let select mark this pcb as non-writable. */
API_EVENT(conn, NETCONN_EVT_SENDMINUS, len);
printf("rttest=%d rtseq=%d sa=%d sv=%d\n", pcb->rttest, pcb->rtseq, pcb->sa, pcb->sv);
printf("rto=%d nrtx=%d\n", pcb->rto, pcb->nrtx);
printf("dupacks=%d lastack=%d\n", pcb->dupacks, pcb->lastack);
+#if ESP_PER_SOC_TCP_WND
+ printf("per_soc_window=%d per_soc_snd_buf=%d\n", pcb->per_soc_tcp_wnd, pcb->per_soc_tcp_snd_buf);
+#endif
printf("cwnd=%d ssthreash=%d\n", pcb->cwnd, pcb->ssthresh);
printf("snd_next=%d snd_wl1=%d snd_wl2=%d\n", pcb->snd_nxt, pcb->snd_wl1, pcb->snd_wl2);
printf("snd_lbb=%d snd_wnd=%d snd_wnd_max=%d\n", pcb->snd_lbb, pcb->snd_wnd, pcb->snd_wnd_max);
s, *(int *)optval));
break;
#endif /* LWIP_TCP_KEEPALIVE */
+
+#if ESP_PER_SOC_TCP_WND
+ case TCP_WINDOW:
+ *(int*)optval = (int)sock->conn->pcb.tcp->per_soc_tcp_wnd;
+ break;
+ case TCP_SNDBUF:
+ *(int*)optval = (int)sock->conn->pcb.tcp->per_soc_tcp_snd_buf;
+ break;
+#endif
+
default:
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
s, optname));
s, sock->conn->pcb.tcp->keep_cnt));
break;
#endif /* LWIP_TCP_KEEPALIVE */
+
+#if ESP_PER_SOC_TCP_WND
+ case TCP_WINDOW:
+ sock->conn->pcb.tcp->per_soc_tcp_wnd = ((u32_t)(*(const int*)optval)) * TCP_MSS;
+ break;
+ case TCP_SNDBUF:
+ sock->conn->pcb.tcp->per_soc_tcp_snd_buf = ((u32_t)(*(const int*)optval)) * TCP_MSS;
+ break;
+#endif
+
default:
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n",
s, optname));
//#endif
#else /* LWIP_WND_SCALE */
-#ifndef LWIP_ESP8266
+#if (ESP_PER_SOC_TCP_WND == 0)
#if (LWIP_TCP && (TCP_WND > 0xffff))
#error "If you want to use TCP, TCP_WND must fit in an u16_t, so, you have to reduce it in your lwipopts.h (or enable window scaling)"
#endif
#endif
#endif /* LWIP_WND_SCALE */
+
+#if (ESP_PER_SOC_TCP_WND == 0)
#if (LWIP_TCP && (TCP_SND_QUEUELEN > 0xffff))
#error "If you want to use TCP, TCP_SND_QUEUELEN must fit in an u16_t, so, you have to reduce it in your lwipopts.h"
#endif
#error "TCP_SND_QUEUELEN must be at least 2 for no-copy TCP writes to work"
#endif
-#ifndef LWIP_ESP8266
#if (LWIP_TCP && ((TCP_MAXRTX > 12) || (TCP_SYNMAXRTX > 12)))
#error "If you want to use TCP, TCP_MAXRTX and TCP_SYNMAXRTX must less or equal to 12 (due to tcp_backoff table), so, you have to reduce them in your lwipopts.h"
#endif
#if !MEMP_MEM_MALLOC && (MEMP_NUM_TCP_SEG < TCP_SND_QUEUELEN)
#error "lwip_sanity_check: WARNING: MEMP_NUM_TCP_SEG should be at least as big as TCP_SND_QUEUELEN. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."
#endif
+
+#if (ESP_PER_SOC_TCP_WND == 0)
#if TCP_SND_BUF < (2 * TCP_MSS)
#error "lwip_sanity_check: WARNING: TCP_SND_BUF must be at least as much as (2 * TCP_MSS) for things to work smoothly. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."
#endif
#if TCP_SNDQUEUELOWAT >= TCP_SND_QUEUELEN
#error "lwip_sanity_check: WARNING: TCP_SNDQUEUELOWAT must be less than TCP_SND_QUEUELEN. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."
#endif
+#endif
+
#if !MEMP_MEM_MALLOC && (PBUF_POOL_BUFSIZE <= (PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN))
#error "lwip_sanity_check: WARNING: PBUF_POOL_BUFSIZE does not provide enough space for protocol headers. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."
#endif
void
lwip_init(void)
{
-#ifdef LWIP_ESP8266
-// MEMP_NUM_TCP_PCB = 5;
-// TCP_WND = (4 * TCP_MSS);
-// TCP_MAXRTX = 12;
-// TCP_SYNMAXRTX = 6;
-#endif
-
/* Modules initialization */
stats_init();
#if !NO_SYS
{
u32_t new_right_edge = pcb->rcv_nxt + pcb->rcv_wnd;
- if (TCP_SEQ_GEQ(new_right_edge, pcb->rcv_ann_right_edge + LWIP_MIN((TCP_WND / 2), pcb->mss))) {
+ if (TCP_SEQ_GEQ(new_right_edge, pcb->rcv_ann_right_edge + LWIP_MIN((TCP_WND(pcb) / 2), pcb->mss))) {
/* we can advertise more window */
pcb->rcv_ann_wnd = pcb->rcv_wnd;
return new_right_edge - pcb->rcv_ann_right_edge;
wnd_inflation = tcp_update_rcv_ann_wnd(pcb);
/* If the change in the right edge of window is significant (default
- * watermark is TCP_WND/4), then send an explicit update now.
+ * watermark is TCP_WND(pcb)/4), then send an explicit update now.
* Otherwise wait for a packet to be sent in the normal course of
* events (or more window to be available later) */
- if (wnd_inflation >= TCP_WND_UPDATE_THRESHOLD) {
+ if (wnd_inflation >= TCP_WND_UPDATE_THRESHOLD(pcb)) {
tcp_ack_now(pcb);
tcp_output(pcb);
}
pcb->snd_lbb = iss - 1;
/* Start with a window that does not need scaling. When window scaling is
enabled and used, the window is enlarged when both sides agree on scaling. */
- pcb->rcv_wnd = pcb->rcv_ann_wnd = TCPWND_MIN16(TCP_WND);
+ pcb->rcv_wnd = pcb->rcv_ann_wnd = TCPWND_MIN16(TCP_WND(pcb));
pcb->rcv_ann_right_edge = pcb->rcv_nxt;
- pcb->snd_wnd = TCP_WND;
+ pcb->snd_wnd = TCP_WND(pcb);
/* As initial send MSS, we use TCP_MSS but limit it to 536.
The send MSS is updated when an MSS option is received. */
pcb->mss = (TCP_MSS > 536) ? 536 : TCP_MSS;
pcb->mss = tcp_eff_send_mss(pcb->mss, &pcb->local_ip, &pcb->remote_ip);
#endif /* TCP_CALCULATE_EFF_SEND_MSS */
pcb->cwnd = 1;
- pcb->ssthresh = TCP_WND;
+ pcb->ssthresh = TCP_WND(pcb);
#if LWIP_CALLBACK_API
pcb->connected = connected;
#else /* LWIP_CALLBACK_API */
if (pcb != NULL) {
memset(pcb, 0, sizeof(struct tcp_pcb));
pcb->prio = prio;
- pcb->snd_buf = TCP_SND_BUF;
+ pcb->snd_buf = TCP_SND_BUF_DEFAULT;
pcb->snd_queuelen = 0;
/* Start with a window that does not need scaling. When window scaling is
enabled and used, the window is enlarged when both sides agree on scaling. */
- pcb->rcv_wnd = pcb->rcv_ann_wnd = TCPWND_MIN16(TCP_WND);
+ pcb->rcv_wnd = pcb->rcv_ann_wnd = TCPWND_MIN16(TCP_WND(pcb));
#if LWIP_WND_SCALE
/* snd_scale and rcv_scale are zero unless both sides agree to use scaling */
pcb->snd_scale = 0;
pcb->snd_lbb = iss;
pcb->tmr = tcp_ticks;
pcb->last_timer = tcp_timer_ctr;
-
pcb->polltmr = 0;
#if LWIP_CALLBACK_API
#endif /* LWIP_TCP_KEEPALIVE */
pcb->keep_cnt_sent = 0;
+
+#if ESP_PER_SOC_TCP_WND
+ pcb->per_soc_tcp_wnd = TCP_WND_DEFAULT;
+ pcb->per_soc_tcp_snd_buf = TCP_SND_BUF_DEFAULT;
+#endif
}
+
return pcb;
}
pcb->rcv_scale = TCP_RCV_SCALE;
pcb->flags |= TF_WND_SCALE;
/* window scaling is enabled, we can use the full receive window */
- LWIP_ASSERT("window not at default value", pcb->rcv_wnd == TCPWND_MIN16(TCP_WND));
- LWIP_ASSERT("window not at default value", pcb->rcv_ann_wnd == TCPWND_MIN16(TCP_WND));
- pcb->rcv_wnd = pcb->rcv_ann_wnd = TCP_WND;
+ LWIP_ASSERT("window not at default value", pcb->rcv_wnd == TCPWND_MIN16(TCP_WND(pcb)));
+ LWIP_ASSERT("window not at default value", pcb->rcv_ann_wnd == TCPWND_MIN16(TCP_WND(pcb)));
+ pcb->rcv_wnd = pcb->rcv_ann_wnd = TCP_WND(pcb);
}
break;
#endif
/* If total number of pbufs on the unsent/unacked queues exceeds the
* configured maximum, return an error */
/* check for configured max queuelen and possible overflow */
- if ((pcb->snd_queuelen >= TCP_SND_QUEUELEN) || (pcb->snd_queuelen > TCP_SNDQUEUELEN_OVERFLOW)) {
+ if ((pcb->snd_queuelen >= TCP_SND_QUEUELEN(pcb)) || (pcb->snd_queuelen > TCP_SNDQUEUELEN_OVERFLOW)) {
LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("tcp_write: too long queue %"U16_F" (max %"U16_F")\n",
- pcb->snd_queuelen, TCP_SND_QUEUELEN));
+ pcb->snd_queuelen, TCP_SND_QUEUELEN(pcb)));
TCP_STATS_INC(tcp.memerr);
pcb->flags |= TF_NAGLEMEMERR;
return ERR_MEM;
/* Now that there are more segments queued, we check again if the
* length of the queue exceeds the configured maximum or
* overflows. */
- if ((queuelen > TCP_SND_QUEUELEN) || (queuelen > TCP_SNDQUEUELEN_OVERFLOW)) {
+ if ((queuelen > TCP_SND_QUEUELEN(pcb)) || (queuelen > TCP_SNDQUEUELEN_OVERFLOW)) {
LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_write: queue too long %"U16_F" (%d)\n",
- queuelen, (int)TCP_SND_QUEUELEN));
+ queuelen, (int)TCP_SND_QUEUELEN(pcb)));
pbuf_free(p);
goto memerr;
}
(flags & (TCP_SYN | TCP_FIN)) != 0);
/* check for configured max queuelen and possible overflow (FIN flag should always come through!) */
- if (((pcb->snd_queuelen >= TCP_SND_QUEUELEN) || (pcb->snd_queuelen > TCP_SNDQUEUELEN_OVERFLOW)) &&
+ if (((pcb->snd_queuelen >= TCP_SND_QUEUELEN(pcb)) || (pcb->snd_queuelen > TCP_SNDQUEUELEN_OVERFLOW)) &&
((flags & TCP_FIN) == 0)) {
LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("tcp_enqueue_flags: too long queue %"U16_F" (max %"U16_F")\n",
- pcb->snd_queuelen, TCP_SND_QUEUELEN));
+ pcb->snd_queuelen, TCP_SND_QUEUELEN(pcb)));
TCP_STATS_INC(tcp.memerr);
pcb->flags |= TF_NAGLEMEMERR;
return ERR_MEM;
struct pbuf *p;
struct tcp_hdr *tcphdr;
struct netif *netif;
+
p = pbuf_alloc(PBUF_IP, TCP_HLEN, PBUF_RAM);
if (p == NULL) {
LWIP_DEBUGF(TCP_DEBUG, ("tcp_rst: could not allocate memory for pbuf\n"));
tcphdr->seqno = htonl(seqno);
tcphdr->ackno = htonl(ackno);
TCPH_HDRLEN_FLAGS_SET(tcphdr, TCP_HLEN/4, TCP_RST | TCP_ACK);
+#if ESP_PER_SOC_TCP_WND
+#if LWIP_WND_SCALE
+ tcphdr->wnd = PP_HTONS(((TCP_WND_DEFAULT >> TCP_RCV_SCALE) & 0xFFFF));
+#else
+ tcphdr->wnd = PP_HTONS(TCP_WND_DEFAULT);
+#endif
+#else
#if LWIP_WND_SCALE
tcphdr->wnd = PP_HTONS(((TCP_WND >> TCP_RCV_SCALE) & 0xFFFF));
#else
tcphdr->wnd = PP_HTONS(TCP_WND);
+#endif
#endif
tcphdr->chksum = 0;
tcphdr->urgp = 0;
* (2 * TCP_MSS) for things to work well
*/
#ifndef TCP_WND
-#define TCP_WND (4 * TCP_MSS)
+#define TCP_WND(pcb) (4 * TCP_MSS)
#endif
/**
* To achieve good performance, this should be at least 2 * TCP_MSS.
*/
#ifndef TCP_SND_BUF
-#define TCP_SND_BUF (2 * TCP_MSS)
+#define TCP_SND_BUF(pcb) (2 * TCP_MSS)
#endif
/**
* as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work.
*/
#ifndef TCP_SND_QUEUELEN
-#define TCP_SND_QUEUELEN ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS))
+#define TCP_SND_QUEUELEN(pcb) ((4 * (TCP_SND_BUF((pcb))) + (TCP_MSS - 1))/(TCP_MSS))
#endif
/**
* TCP snd_buf for select to return writable (combined with TCP_SNDQUEUELOWAT).
*/
#ifndef TCP_SNDLOWAT
-#define TCP_SNDLOWAT LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1)
+#define TCP_SNDLOWAT(pcb) LWIP_MIN(LWIP_MAX(((TCP_SND_BUF((pcb)))/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF((pcb))) - 1)
#endif
/**
* this number, select returns writable (combined with TCP_SNDLOWAT).
*/
#ifndef TCP_SNDQUEUELOWAT
-#define TCP_SNDQUEUELOWAT LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5)
+#define TCP_SNDQUEUELOWAT(pcb) LWIP_MAX(((TCP_SND_QUEUELEN((pcb)))/2), 5)
#endif
/**
* explicit window update
*/
#ifndef TCP_WND_UPDATE_THRESHOLD
-#define TCP_WND_UPDATE_THRESHOLD LWIP_MIN((TCP_WND / 4), (TCP_MSS * 4))
+#define TCP_WND_UPDATE_THRESHOLD(pcb) LWIP_MIN((TCP_WND((pcb)) / 4), (TCP_MSS * 4))
#endif
/**
((tpcb)->flags & (TF_NODELAY | TF_INFR)) || \
(((tpcb)->unsent != NULL) && (((tpcb)->unsent->next != NULL) || \
((tpcb)->unsent->len >= (tpcb)->mss))) || \
- ((tcp_sndbuf(tpcb) == 0) || (tcp_sndqueuelen(tpcb) >= TCP_SND_QUEUELEN)) \
+ ((tcp_sndbuf(tpcb) == 0) || (tcp_sndqueuelen(tpcb) >= TCP_SND_QUEUELEN(tpcb))) \
) ? 1 : 0)
#define tcp_output_nagle(tpcb) (tcp_do_output_nagle(tpcb) ? tcp_output(tpcb) : ERR_OK)
#define SO_CONTIMEO 0x1009 /* Unimplemented: connect timeout */
#define SO_NO_CHECK 0x100a /* don't create UDP checksum */
-
/*
* Structure used for manipulating linger option.
*/
#define TCP_KEEPIDLE 0x03 /* set pcb->keep_idle - Same as TCP_KEEPALIVE, but use seconds for get/setsockopt */
#define TCP_KEEPINTVL 0x04 /* set pcb->keep_intvl - Use seconds for get/setsockopt */
#define TCP_KEEPCNT 0x05 /* set pcb->keep_cnt - Use number of probes sent for get/setsockopt */
+#if ESP_PER_SOC_TCP_WND
+#define TCP_WINDOW 0x06 /* set pcb->per_soc_tcp_wnd */
+#define TCP_SNDBUF 0x07 /* set pcb->per_soc_tcp_snd_buf */
+#endif
+
#endif /* LWIP_TCP */
#if LWIP_IPV6
#define RCV_WND_SCALE(pcb, wnd) (((wnd) >> (pcb)->rcv_scale))
#define SND_WND_SCALE(pcb, wnd) (((wnd) << (pcb)->snd_scale))
#define TCPWND16(x) ((u16_t)LWIP_MIN((x), 0xFFFF))
-#define TCP_WND_MAX(pcb) ((tcpwnd_size_t)(((pcb)->flags & TF_WND_SCALE) ? TCP_WND : TCPWND16(TCP_WND)))
+#define TCP_WND_MAX(pcb) ((tcpwnd_size_t)(((pcb)->flags & TF_WND_SCALE) ? TCP_WND(pcb) : TCPWND16(TCP_WND(pcb))))
typedef u32_t tcpwnd_size_t;
typedef u16_t tcpflags_t;
#else
#define RCV_WND_SCALE(pcb, wnd) (wnd)
#define SND_WND_SCALE(pcb, wnd) (wnd)
#define TCPWND16(x) (x)
-#define TCP_WND_MAX(pcb) TCP_WND
+#define TCP_WND_MAX(pcb) TCP_WND(pcb)
typedef u16_t tcpwnd_size_t;
typedef u8_t tcpflags_t;
#endif
u8_t dupacks;
u32_t lastack; /* Highest acknowledged seqno. */
+#if ESP_PER_SOC_TCP_WND
+ tcpwnd_size_t per_soc_tcp_wnd; /* per tcp socket tcp window size */
+ tcpwnd_size_t per_soc_tcp_snd_buf; /* per tcp socket tcp send buffer size */
+#endif
+
/* congestion avoidance/control variables */
tcpwnd_size_t cwnd;
tcpwnd_size_t ssthresh;
/* for compatibility with older implementation */
#define tcp_new_ip6() tcp_new_ip_type(IPADDR_TYPE_V6)
+#if ESP_PER_SOC_TCP_WND
+#define PER_SOC_WND(pcb) (pcb->per_soc_wnd)
+#endif
+
#ifdef __cplusplus
}
#endif
* TCP_WND: The size of a TCP window. This must be at least
* (2 * TCP_MSS) for things to work well
*/
-#define PERF 1
+
+#define ESP_PER_SOC_TCP_WND 1
+#if ESP_PER_SOC_TCP_WND
+#define TCP_WND_DEFAULT (4*TCP_MSS)
+#define TCP_SND_BUF_DEFAULT (2*TCP_MSS)
+
+#define TCP_WND(pcb) (pcb->per_soc_tcp_wnd)
+#define TCP_SND_BUF(pcb) (pcb->per_soc_tcp_snd_buf)
+#else
#ifdef PERF
extern unsigned char misc_prof_get_tcpw(void);
extern unsigned char misc_prof_get_tcp_snd_buf(void);
-#define TCP_WND (misc_prof_get_tcpw()*TCP_MSS)
-#define TCP_SND_BUF (misc_prof_get_tcp_snd_buf()*TCP_MSS)
-
-#else
-
-#define TCP_WND (4 * TCP_MSS)
-#define TCP_SND_BUF (2 * TCP_MSS)
-
+#define TCP_WND(pcb) (misc_prof_get_tcpw()*TCP_MSS)
+#define TCP_SND_BUF(pcb) (misc_prof_get_tcp_snd_buf()*TCP_MSS)
+#endif
#endif