diff options
Diffstat (limited to 'usr/src/uts/common/inet/tcp/tcp_fusion.c')
| -rw-r--r-- | usr/src/uts/common/inet/tcp/tcp_fusion.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/usr/src/uts/common/inet/tcp/tcp_fusion.c b/usr/src/uts/common/inet/tcp/tcp_fusion.c index 313b024943..93f3250fcc 100644 --- a/usr/src/uts/common/inet/tcp/tcp_fusion.c +++ b/usr/src/uts/common/inet/tcp/tcp_fusion.c @@ -799,6 +799,7 @@ size_t tcp_fuse_set_rcv_hiwat(tcp_t *tcp, size_t rwnd) { tcp_stack_t *tcps = tcp->tcp_tcps; + uint32_t max_win; ASSERT(tcp->tcp_fused); @@ -810,6 +811,12 @@ tcp_fuse_set_rcv_hiwat(tcp_t *tcp, size_t rwnd) * after SO_SNDBUF; the latter is also similarly rounded up. */ rwnd = P2ROUNDUP_TYPED(rwnd, PAGESIZE, size_t); + max_win = TCP_MAXWIN << tcp->tcp_rcv_ws; + if (rwnd > max_win) { + rwnd = max_win - (max_win % tcp->tcp_mss); + if (rwnd < tcp->tcp_mss) + rwnd = max_win; + } /* * Record high water mark, this is used for flow-control |