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Merge pull request #101 from adamgreen/netFixLargeSegmentIssues 

net: Fix a couple of large TCP segment issues
pull/105/head
Emilio Monti 2013-11-04 00:46:49 -08:00
parent 5aad98af4b 64620e2e78
commit 8222bde1af
2 changed files with 4 additions and 1 deletions
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2
libraries/net/eth/lwip-eth/arch/lpc_emac_config.h
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@ -86,7 +86,7 @@ extern "C"
/** \brief Defines the number of descriptors used for TX. Must /** \brief Defines the number of descriptors used for TX. Must
* be a minimum value of 2. * be a minimum value of 2.
*/ */
#define LPC_NUM_BUFF_TXDESCS 3 #define LPC_NUM_BUFF_TXDESCS (TCP_SND_QUEUELEN + 1)
/** \brief Set this define to 1 to enable bounce buffers for transmit pbufs /** \brief Set this define to 1 to enable bounce buffers for transmit pbufs
* that cannot be sent via the zero-copy method. Some chained pbufs * that cannot be sent via the zero-copy method. Some chained pbufs

3
libraries/net/lwip/lwip/core/tcp_out.c
View File

@ -646,6 +646,9 @@ tcp_write(struct tcp_pcb *pcb, const void *arg, u16_t len, u8_t apiflags)
last_unsent->len += concat_p->tot_len; last_unsent->len += concat_p->tot_len;
#if TCP_CHECKSUM_ON_COPY #if TCP_CHECKSUM_ON_COPY
if (concat_chksummed) { if (concat_chksummed) {
if (concat_chksum_swapped) {
concat_chksum = SWAP_BYTES_IN_WORD(concat_chksum);
}
tcp_seg_add_chksum(concat_chksum, concat_chksummed, &last_unsent->chksum, tcp_seg_add_chksum(concat_chksum, concat_chksummed, &last_unsent->chksum,
&last_unsent->chksum_swapped); &last_unsent->chksum_swapped);
last_unsent->flags |= TF_SEG_DATA_CHECKSUMMED; last_unsent->flags |= TF_SEG_DATA_CHECKSUMMED;