> -----Original Message----- > From: Tan, Jianfeng > Sent: Monday, September 26, 2016 2:49 PM > To: dev at dpdk.org > Cc: Ananyev, Konstantin <konstantin.ananyev at intel.com>; Wu, Jingjing > <jingjing.wu at intel.com>; Tan, Jianfeng > <jianfeng.tan at intel.com>; Zhe Tao <zhe.tao at intel.com> > Subject: [PATCH v5 3/3] app/testpmd: support tunneled TSO in csum fwd engine > > Add a new command "tunnel_tso set <tso_segsz> <port>" to enable > segmentation offload and set MSS to tso_segsz. Another command, > "tunnel_tso show <port>" is added to show tunneled packet MSS. > Result 0 means tunnel_tso is disabled. > > The original commands, "tso set <tso_segsz> <port>" and "tso show > <port>" are only reponsible for non-tunneled packets. And the new > commands are for tunneled packets. > > Below conditions are needed to make it work: > a. tunnel TSO is supported by the NIC; > b. "csum parse_tunnel" must be set so that tunneled pkts are > recognized; > c. for tunneled pkts with outer L3 is IPv4, "csum set outer-ip" > must be set to hw, because after tso, total_len of outer IP > header is changed, and the checksum of outer IP header calculated > by sw should be wrong; that is not necessary for IPv6 tunneled > pkts because there's no checksum field to be filled anymore. > > Suggested-by: Konstantin Ananyev <konstantin.ananyev at intel.com> > Signed-off-by: Zhe Tao <zhe.tao at intel.com> > Signed-off-by: Jianfeng Tan <jianfeng.tan at intel.com> > --- > v5: > -- Instead of reuse original tso command, add a new command for > tunneled tso; > -- Fix a implicit conversion from long -> int bug, as the parameter > of process_outer_cksums() in previous version. > app/test-pmd/cmdline.c | 132 > +++++++++++++++++++++++++++++++++++++++++++++--- > app/test-pmd/csumonly.c | 69 ++++++++++++++++++------- > app/test-pmd/testpmd.h | 3 +- > 3 files changed, 179 insertions(+), 25 deletions(-) >
Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
