Thanks, PSB.
> -----Original Message-----
> From: Iremonger, Bernard <bernard.iremon...@intel.com>
> Sent: Wednesday, November 6, 2019 2:36 PM
> To: Dekel Peled <dek...@mellanox.com>; Mcnamara, John
> <john.mcnam...@intel.com>; Kovacevic, Marko
> <marko.kovace...@intel.com>; nhor...@tuxdriver.com;
> ajit.khapa...@broadcom.com; somnath.ko...@broadcom.com; Burakov,
> Anatoly <anatoly.bura...@intel.com>; xuanziya...@huawei.com;
> cloud.wangxiao...@huawei.com; zhouguoy...@huawei.com; Lu, Wenzhuo
> <wenzhuo...@intel.com>; Ananyev, Konstantin
> <konstantin.anan...@intel.com>; Matan Azrad <ma...@mellanox.com>;
> Shahaf Shuler <shah...@mellanox.com>; Slava Ovsiienko
> <viachesl...@mellanox.com>; rm...@marvell.com;
> shsha...@marvell.com; maxime.coque...@redhat.com; Bie, Tiwei
> <tiwei....@intel.com>; Wang, Zhihong <zhihong.w...@intel.com>;
> yongw...@vmware.com; Thomas Monjalon <tho...@monjalon.net>; Yigit,
> Ferruh <ferruh.yi...@intel.com>; arybche...@solarflare.com; Wu, Jingjing
> <jingjing...@intel.com>
> Cc: dev@dpdk.org
> Subject: RE: [PATCH v2 3/3] app/testpmd: use API to set max LRO packet size
>
> Hi Dekel,
>
> > -----Original Message-----
> > From: Dekel Peled <dek...@mellanox.com>
> > Sent: Wednesday, November 6, 2019 11:35 AM
> > To: Mcnamara, John <john.mcnam...@intel.com>; Kovacevic, Marko
> > <marko.kovace...@intel.com>; nhor...@tuxdriver.com;
> > ajit.khapa...@broadcom.com; somnath.ko...@broadcom.com; Burakov,
> > Anatoly <anatoly.bura...@intel.com>; xuanziya...@huawei.com;
> > cloud.wangxiao...@huawei.com; zhouguoy...@huawei.com; Lu,
> Wenzhuo
> > <wenzhuo...@intel.com>; Ananyev, Konstantin
> > <konstantin.anan...@intel.com>; ma...@mellanox.com;
> > shah...@mellanox.com; viachesl...@mellanox.com;
> rm...@marvell.com;
> > shsha...@marvell.com; maxime.coque...@redhat.com; Bie, Tiwei
> > <tiwei....@intel.com>; Wang, Zhihong <zhihong.w...@intel.com>;
> > yongw...@vmware.com; tho...@monjalon.net; Yigit, Ferruh
> > <ferruh.yi...@intel.com>; arybche...@solarflare.com; Wu, Jingjing
> > <jingjing...@intel.com>; Iremonger, Bernard
> > <bernard.iremon...@intel.com>
> > Cc: dev@dpdk.org
> > Subject: [PATCH v2 3/3] app/testpmd: use API to set max LRO packet
> > size
> >
> > 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>
> > ---
> > app/test-pmd/cmdline.c | 73
> > +++++++++++++++++++++++++++++
> > app/test-pmd/config.c | 2 +
> > app/test-pmd/parameters.c | 5 ++
> > 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, 95 insertions(+)
> >
> > diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c index
> > 4478069..edfa60f 100644
> > --- a/app/test-pmd/cmdline.c
> > +++ b/app/test-pmd/cmdline.c
> > @@ -2037,6 +2037,78 @@ 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;
> > +
>
> Should there be a check on the input value, max is RTE_ETHER_MAX_LEN ?
>
Max is device specific, can't check it here.
>
> > + 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;
> > @@ -19024,6 +19096,7 @@ struct
> > cmd_show_port_supported_ptypes_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 efe2812..50e6ac0
> > 100644
> > --- a/app/test-pmd/config.c
> > +++ b/app/test-pmd/config.c
> > @@ -629,6 +629,8 @@ 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..3e371e2 100644
> > --- a/app/test-pmd/parameters.c
> > +++ b/app/test-pmd/parameters.c
> > @@ -592,6 +592,7 @@
> > { "mbuf-size", 1, 0, 0 },
> > { "total-num-mbufs", 1, 0, 0 },
> > { "max-pkt-len", 1, 0, 0 },
> > + { "max-lro-pkt-size", 1, 0, 0 },
>
> The max-lro-pkt-size option should be documented in the usage() function
> around line 110 in parameters.c
>
I'll add in in v3.
> > { "pkt-filter-mode", 1, 0, 0 },
> > { "pkt-filter-report-hash", 1, 0, 0 },
> > { "pkt-filter-size", 1, 0, 0 },
> > @@ -888,6 +889,10 @@
> > "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);
>
> Should there be a check on the value input, max value is
> RTE_ETHER_MAX_LEN?
Max is device specific, can't check it here.
>
> > + 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
> > 38acbc5..d4f67ec 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,
> > };
> >
> > 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 ef677ba..bc17f3f 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.
>
> Should a max value be specified ?
Max is device specific, can't specify it here.
>
> > +
> > * ``--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 c68a742..0267295 100644
> > --- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> > +++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> > @@ -2139,6 +2139,15 @@ 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
>
> Regards,
>
> Bernard.
