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authorNavdeep Parhar <np@FreeBSD.org>2015-01-02 21:13:24 +0000
committerNavdeep Parhar <np@FreeBSD.org>2015-01-02 21:13:24 +0000
commit402873f32ac9347c82c67d1523bbd5fdc23d8c0c (patch)
tree775cce73b5588da8d4622bf8d9529fb98089e396 /sys/dev
parentaf80e5148c06963c438f6a833c08d305e1b122f8 (diff)
Notes
Diffstat (limited to 'sys/dev')
-rw-r--r--sys/dev/cxgbe/tom/t4_cpl_io.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/sys/dev/cxgbe/tom/t4_cpl_io.c b/sys/dev/cxgbe/tom/t4_cpl_io.c
index f1e2dfac372a8..3cee10ae06a1b 100644
--- a/sys/dev/cxgbe/tom/t4_cpl_io.c
+++ b/sys/dev/cxgbe/tom/t4_cpl_io.c
@@ -44,6 +44,7 @@ __FBSDID("$FreeBSD$");
#include <netinet/in.h>
#include <netinet/in_pcb.h>
#include <netinet/ip.h>
+#include <netinet/ip6.h>
#include <netinet/tcp_var.h>
#define TCPSTATES
#include <netinet/tcp_fsm.h>
@@ -236,11 +237,20 @@ static void
assign_rxopt(struct tcpcb *tp, unsigned int opt)
{
struct toepcb *toep = tp->t_toe;
+ struct inpcb *inp = tp->t_inpcb;
struct adapter *sc = td_adapter(toep->td);
+ int n;
+
+ INP_LOCK_ASSERT(inp);
- INP_LOCK_ASSERT(tp->t_inpcb);
+ if (inp->inp_inc.inc_flags & INC_ISIPV6)
+ n = sizeof(struct ip6_hdr) + sizeof(struct tcphdr);
+ else
+ n = sizeof(struct ip) + sizeof(struct tcphdr);
+ tp->t_maxseg = tp->t_maxopd = sc->params.mtus[G_TCPOPT_MSS(opt)] - n;
- tp->t_maxseg = tp->t_maxopd = sc->params.mtus[G_TCPOPT_MSS(opt)] - 40;
+ CTR4(KTR_CXGBE, "%s: tid %d, mtu_idx %u (%u)", __func__, toep->tid,
+ G_TCPOPT_MSS(opt), sc->params.mtus[G_TCPOPT_MSS(opt)]);
if (G_TCPOPT_TSTAMP(opt)) {
tp->t_flags |= TF_RCVD_TSTMP; /* timestamps ok */