Some driver implements it's own network packet pool, so PKTBUFSRX is zero. This results in zero-size TCP receive window, so data transfer doesn't work. Avod it by setting a reasonable fallback value.
Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevets...@iopsys.eu> --- net/tcp.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/tcp.c b/net/tcp.c index 9fb80f9c2a8..fc713f503fa 100644 --- a/net/tcp.c +++ b/net/tcp.c @@ -29,7 +29,11 @@ #define TCP_SEND_TIMEOUT 2000UL #define TCP_RX_INACTIVE_TIMEOUT 30000UL #define TCP_START_SEQ_INC 2153 /* just large prime number */ -#define TCP_RCV_WND_SIZE (PKTBUFSRX * TCP_MSS) +#if PKTBUFSRX != 0 + #define TCP_RCV_WND_SIZE (PKTBUFSRX * TCP_MSS) +#else + #define TCP_RCV_WND_SIZE (4 * TCP_MSS) +#endif #define TCP_PACKET_OK 0 #define TCP_PACKET_DROP 1 -- 2.39.2
