> > This patch implements use of the API for LRO aggregated packet > max size. > It adds command-line and runtime commands to configure this value, > and adds option to show the supported value. > Documentation is updated accordingly. > > Signed-off-by: Dekel Peled <dek...@mellanox.com> > Acked-by: Bernard Iremonger <bernard.iremon...@intel.com> > Acked-by: Matan Azrad <ma...@mellanox.com> > --- > app/test-pmd/cmdline.c | 76 > +++++++++++++++++++++++++++++ > app/test-pmd/config.c | 2 + > app/test-pmd/parameters.c | 7 +++ > app/test-pmd/testpmd.c | 1 + > doc/guides/testpmd_app_ug/run_app.rst | 5 ++ > doc/guides/testpmd_app_ug/testpmd_funcs.rst | 9 ++++ > 6 files changed, 100 insertions(+) > > diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c > index 78c6899..2206a70 100644 > --- a/app/test-pmd/cmdline.c > +++ b/app/test-pmd/cmdline.c > @@ -777,6 +777,9 @@ static void cmd_help_long_parsed(void *parsed_result, > "port config all max-pkt-len (value)\n" > " Set the max packet length.\n\n" > > + "port config all max-lro-pkt-size (value)\n" > + " Set the max LRO aggregated packet size.\n\n" > + > "port config all drop-en (on|off)\n" > " Enable or disable packet drop on all RX queues of > all ports when no " > "receive buffers available.\n\n" > @@ -2040,6 +2043,78 @@ struct cmd_config_max_pkt_len_result { > }, > }; > > +/* *** config max LRO aggregated packet size *** */ > +struct cmd_config_max_lro_pkt_size_result { > + cmdline_fixed_string_t port; > + cmdline_fixed_string_t keyword; > + cmdline_fixed_string_t all; > + cmdline_fixed_string_t name; > + uint32_t value; > +}; > + > +static void > +cmd_config_max_lro_pkt_size_parsed(void *parsed_result, > + __attribute__((unused)) struct cmdline *cl, > + __attribute__((unused)) void *data) > +{ > + struct cmd_config_max_lro_pkt_size_result *res = parsed_result; > + portid_t pid; > + > + if (!all_ports_stopped()) { > + printf("Please stop all ports first\n"); > + return; > + } > + > + RTE_ETH_FOREACH_DEV(pid) { > + struct rte_port *port = &ports[pid]; > + > + if (!strcmp(res->name, "max-lro-pkt-size")) { > + if (res->value == > + port->dev_conf.rxmode.max_lro_pkt_size) > + return; > + > + port->dev_conf.rxmode.max_lro_pkt_size = res->value; > + } else { > + printf("Unknown parameter\n"); > + return; > + } > + } > + > + init_port_config(); > + > + cmd_reconfig_device_queue(RTE_PORT_ALL, 1, 1); > +} > + > +cmdline_parse_token_string_t cmd_config_max_lro_pkt_size_port = > + TOKEN_STRING_INITIALIZER(struct cmd_config_max_lro_pkt_size_result, > + port, "port"); > +cmdline_parse_token_string_t cmd_config_max_lro_pkt_size_keyword = > + TOKEN_STRING_INITIALIZER(struct cmd_config_max_lro_pkt_size_result, > + keyword, "config"); > +cmdline_parse_token_string_t cmd_config_max_lro_pkt_size_all = > + TOKEN_STRING_INITIALIZER(struct cmd_config_max_lro_pkt_size_result, > + all, "all"); > +cmdline_parse_token_string_t cmd_config_max_lro_pkt_size_name = > + TOKEN_STRING_INITIALIZER(struct cmd_config_max_lro_pkt_size_result, > + name, "max-lro-pkt-size"); > +cmdline_parse_token_num_t cmd_config_max_lro_pkt_size_value = > + TOKEN_NUM_INITIALIZER(struct cmd_config_max_lro_pkt_size_result, > + value, UINT32); > + > +cmdline_parse_inst_t cmd_config_max_lro_pkt_size = { > + .f = cmd_config_max_lro_pkt_size_parsed, > + .data = NULL, > + .help_str = "port config all max-lro-pkt-size <value>", > + .tokens = { > + (void *)&cmd_config_max_lro_pkt_size_port, > + (void *)&cmd_config_max_lro_pkt_size_keyword, > + (void *)&cmd_config_max_lro_pkt_size_all, > + (void *)&cmd_config_max_lro_pkt_size_name, > + (void *)&cmd_config_max_lro_pkt_size_value, > + NULL, > + }, > +}; > + > /* *** configure port MTU *** */ > struct cmd_config_mtu_result { > cmdline_fixed_string_t port; > @@ -19124,6 +19199,7 @@ struct cmd_show_rx_tx_desc_status_result { > (cmdline_parse_inst_t *)&cmd_config_rx_tx, > (cmdline_parse_inst_t *)&cmd_config_mtu, > (cmdline_parse_inst_t *)&cmd_config_max_pkt_len, > + (cmdline_parse_inst_t *)&cmd_config_max_lro_pkt_size, > (cmdline_parse_inst_t *)&cmd_config_rx_mode_flag, > (cmdline_parse_inst_t *)&cmd_config_rss, > (cmdline_parse_inst_t *)&cmd_config_rxtx_ring_size, > diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c > index b603974..e1e5cf7 100644 > --- a/app/test-pmd/config.c > +++ b/app/test-pmd/config.c > @@ -616,6 +616,8 @@ static int bus_match_all(const struct rte_bus *bus, const > void *data) > printf("Minimum size of RX buffer: %u\n", dev_info.min_rx_bufsize); > printf("Maximum configurable length of RX packet: %u\n", > dev_info.max_rx_pktlen); > + printf("Maximum configurable size of LRO aggregated packet: %u\n", > + dev_info.max_lro_pkt_size); > if (dev_info.max_vfs) > printf("Maximum number of VFs: %u\n", dev_info.max_vfs); > if (dev_info.max_vmdq_pools) > diff --git a/app/test-pmd/parameters.c b/app/test-pmd/parameters.c > index 9ea87c1..eda395b 100644 > --- a/app/test-pmd/parameters.c > +++ b/app/test-pmd/parameters.c > @@ -107,6 +107,8 @@ > printf(" --total-num-mbufs=N: set the number of mbufs to be allocated " > "in mbuf pools.\n"); > printf(" --max-pkt-len=N: set the maximum size of packet to N > bytes.\n"); > + printf(" --max-lro-pkt-size=N: set the maximum LRO aggregated packet " > + "size to N bytes.\n"); > #ifdef RTE_LIBRTE_CMDLINE > printf(" --eth-peers-configfile=name: config file with ethernet > addresses " > "of peer ports.\n"); > @@ -592,6 +594,7 @@ > { "mbuf-size", 1, 0, 0 }, > { "total-num-mbufs", 1, 0, 0 }, > { "max-pkt-len", 1, 0, 0 }, > + { "max-lro-pkt-size", 1, 0, 0 }, > { "pkt-filter-mode", 1, 0, 0 }, > { "pkt-filter-report-hash", 1, 0, 0 }, > { "pkt-filter-size", 1, 0, 0 }, > @@ -888,6 +891,10 @@ > "Invalid max-pkt-len=%d - > should be > %d\n", > n, RTE_ETHER_MIN_LEN); > } > + if (!strcmp(lgopts[opt_idx].name, "max-lro-pkt-size")) { > + n = atoi(optarg); > + rx_mode.max_lro_pkt_size = (uint32_t) n; > + } > if (!strcmp(lgopts[opt_idx].name, "pkt-filter-mode")) { > if (!strcmp(optarg, "signature")) > fdir_conf.mode = > diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c > index 5ba9741..3fe694f 100644 > --- a/app/test-pmd/testpmd.c > +++ b/app/test-pmd/testpmd.c > @@ -419,6 +419,7 @@ struct fwd_engine * fwd_engines[] = { > struct rte_eth_rxmode rx_mode = { > .max_rx_pkt_len = RTE_ETHER_MAX_LEN, > /**< Default maximum frame length. */ > + .max_lro_pkt_size = RTE_ETHER_MAX_LEN,
That looks like a change in current testpmd behavior, correct? If so, is there real need for that? Can't we have either some value for max_lro_pktlen, that would indicate PMD to use the default value it prefers? Or probably better to let have a separate function to set max lro size. Then by default PMD will always use its preferred value, and when needed user can change it via special function call. > }; > > struct rte_eth_txmode tx_mode = { > diff --git a/doc/guides/testpmd_app_ug/run_app.rst > b/doc/guides/testpmd_app_ug/run_app.rst > index 00e0c2a..721f740 100644 > --- a/doc/guides/testpmd_app_ug/run_app.rst > +++ b/doc/guides/testpmd_app_ug/run_app.rst > @@ -112,6 +112,11 @@ The command line options are: > > Set the maximum packet size to N bytes, where N >= 64. The default value > is 1518. > > +* ``--max-lro-pkt-size=N`` > + > + Set the maximum LRO aggregated packet size to N bytes, where N >= 64. > + The default value is 1518. > + > * ``--eth-peers-configfile=name`` > > Use a configuration file containing the Ethernet addresses of the peer > ports. > diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst > b/doc/guides/testpmd_app_ug/testpmd_funcs.rst > index 9a5e5cb..9cfc82a 100644 > --- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst > +++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst > @@ -2147,6 +2147,15 @@ Set the maximum packet length:: > > This is equivalent to the ``--max-pkt-len`` command-line option. > > +port config - max-lro-pkt-size > +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > + > +Set the maximum LRO aggregated packet size:: > + > + testpmd> port config all max-lro-pkt-size (value) > + > +This is equivalent to the ``--max-lro-pkt-size`` command-line option. > + > port config - Drop Packets > ~~~~~~~~~~~~~~~~~~~~~~~~~~ > > -- > 1.8.3.1