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| author | hselasky <hselasky@FreeBSD.org> | 2014-11-03 12:38:29 +0000 |
|---|---|---|
| committer | hselasky <hselasky@FreeBSD.org> | 2014-11-03 12:38:29 +0000 |
| commit | fa183f01741aa54ff3ba0fcf31b7b1404b7a7e53 (patch) | |
| tree | 1bba595c897541325069c2ad2bb01c04241c25c0 /sys/netinet/tcp_var.h | |
| parent | 8dd879bfaf9ef726ec0754bd1c4368f02df4f798 (diff) | |
| download | FreeBSD-src-fa183f01741aa54ff3ba0fcf31b7b1404b7a7e53.zip FreeBSD-src-fa183f01741aa54ff3ba0fcf31b7b1404b7a7e53.tar.gz | |
MFC r271946 and r272595:
Improve transmit sending offload, TSO, algorithm in general. This
change allows all HCAs from Mellanox Technologies to function properly
when TSO is enabled. See r271946 and r272595 for more details about
this commit.
Sponsored by: Mellanox Technologies
Diffstat (limited to 'sys/netinet/tcp_var.h')
| -rw-r--r-- | sys/netinet/tcp_var.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/netinet/tcp_var.h b/sys/netinet/tcp_var.h index 10b1096..72bb7ae 100644 --- a/sys/netinet/tcp_var.h +++ b/sys/netinet/tcp_var.h @@ -208,13 +208,15 @@ struct tcpcb { u_int t_keepintvl; /* interval between keepalives */ u_int t_keepcnt; /* number of keepalives before close */ - u_int t_tsomax; /* tso burst length limit */ + u_int t_tsomax; /* TSO total burst length limit in bytes */ u_int t_pmtud_saved_maxopd; /* pre-blackhole MSS */ u_int t_flags2; /* More tcpcb flags storage */ uint32_t t_ispare[6]; /* 5 UTO, 1 TBD */ void *t_pspare2[4]; /* 1 TCP_SIGNATURE, 3 TBD */ - uint64_t _pad[6]; /* 6 TBD (1-2 CC/RTT?) */ + uint64_t _pad[5]; /* 5 TBD (1-2 CC/RTT?) */ + uint32_t t_tsomaxsegcount; /* TSO maximum segment count */ + uint32_t t_tsomaxsegsize; /* TSO maximum segment size in bytes */ }; /* @@ -342,6 +344,8 @@ struct hc_metrics_lite { /* must stay in sync with hc_metrics */ struct tcp_ifcap { int ifcap; u_int tsomax; + u_int tsomaxsegcount; + u_int tsomaxsegsize; }; #ifndef _NETINET_IN_PCB_H_ |
