diff options
Diffstat (limited to 'sys/netinet/tcp_output.c')
| -rw-r--r-- | sys/netinet/tcp_output.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sys/netinet/tcp_output.c b/sys/netinet/tcp_output.c index ba0ec40..f1196e1 100644 --- a/sys/netinet/tcp_output.c +++ b/sys/netinet/tcp_output.c @@ -807,7 +807,8 @@ send: */ if (if_hw_tsomax != 0) { /* compute maximum TSO length */ - max_len = (if_hw_tsomax - hdrlen); + max_len = (if_hw_tsomax - hdrlen - + max_linkhdr); if (max_len <= 0) { len = 0; } else if (len > max_len) { @@ -822,6 +823,15 @@ send: */ if (if_hw_tsomaxsegcount != 0 && if_hw_tsomaxsegsize != 0) { + /* + * Subtract one segment for the LINK + * and TCP/IP headers mbuf that will + * be prepended to this mbuf chain + * after the code in this section + * limits the number of mbufs in the + * chain to if_hw_tsomaxsegcount. + */ + if_hw_tsomaxsegcount -= 1; max_len = 0; mb = sbsndmbuf(&so->so_snd, off, &moff); |
