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From: Lance Richardson <lance.richardson@broadcom.com>
To: Steve Yang <stevex.yang@intel.com>
Cc: dev@dpdk.org, Wenzhuo Lu <wenzhuo.lu@intel.com>,
	Beilei Xing <beilei.xing@intel.com>,
	 Bernard Iremonger <bernard.iremonger@intel.com>
Subject: Re: [dpdk-dev] [PATCH v4 02/22] app/testpmd: fix max rx packet length for VLAN packets
Date: Thu, 21 Jan 2021 10:27:07 -0500
Message-ID: <CADyeNECVU-w0nXxU4ib-4zikyBWvrnDzC4vRcVF2DgTfsiSJug@mail.gmail.com> (raw)
In-Reply-To: <20210118070428.36998-3-stevex.yang@intel.com>

[-- Attachment #1: Type: text/plain, Size: 6403 bytes --]

On Mon, Jan 18, 2021 at 2:08 AM Steve Yang <stevex.yang@intel.com> wrote:
>
> When the max rx packet length is smaller than the sum of mtu size and
> ether overhead size, it should be enlarged, otherwise the VLAN packets
> will be dropped.
>
> Removed the rx_offloads assignment for jumbo frame during command line
> parsing, and set the correct jumbo frame flag if MTU size is larger than
> the default value 'RTE_ETHER_MTU' within 'init_config()'.
>
> Fixes: 384161e00627 ("app/testpmd: adjust on the fly VLAN configuration")
> Fixes: 35b2d13fd6fd ("net: add rte prefix to ether defines")
> Fixes: ce17eddefc20 ("ethdev: introduce Rx queue offloads API")
> Fixes: 150c9ac2df13 ("app/testpmd: update Rx offload after setting MTU")
>
> Cc: Wenzhuo Lu <wenzhuo.lu@intel.com>
> Cc: Beilei Xing <beilei.xing@intel.com>
> Cc: Bernard Iremonger <bernard.iremonger@intel.com>
>
> Signed-off-by: Steve Yang <stevex.yang@intel.com>
> ---
>  app/test-pmd/cmdline.c    |  6 ------
>  app/test-pmd/config.c     |  2 +-
>  app/test-pmd/parameters.c |  7 ++-----
>  app/test-pmd/testpmd.c    | 18 ++++++++++++++++++
>  4 files changed, 21 insertions(+), 12 deletions(-)
>
> diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
> index 2ccbaa039e..65042fcff5 100644
> --- a/app/test-pmd/cmdline.c
> +++ b/app/test-pmd/cmdline.c
> @@ -1886,7 +1886,6 @@ cmd_config_max_pkt_len_parsed(void *parsed_result,
>
>         RTE_ETH_FOREACH_DEV(pid) {
>                 struct rte_port *port = &ports[pid];
> -               uint64_t rx_offloads = port->dev_conf.rxmode.offloads;
>
>                 if (!strcmp(res->name, "max-pkt-len")) {
>                         if (res->value < RTE_ETHER_MIN_LEN) {
> @@ -1898,11 +1897,6 @@ cmd_config_max_pkt_len_parsed(void *parsed_result,
>                                 return;
>
>                         port->dev_conf.rxmode.max_rx_pkt_len = res->value;
> -                       if (res->value > RTE_ETHER_MAX_LEN)
> -                               rx_offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
> -                       else
> -                               rx_offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
> -                       port->dev_conf.rxmode.offloads = rx_offloads;
>                 } else {
>                         printf("Unknown parameter\n");
>                         return;
> diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
> index 3f6c8642b1..1195f054f3 100644
> --- a/app/test-pmd/config.c
> +++ b/app/test-pmd/config.c
> @@ -1434,7 +1434,7 @@ port_mtu_set(portid_t port_id, uint16_t mtu)
>                  * device supports jumbo frame.
>                  */
>                 eth_overhead = dev_info.max_rx_pktlen - dev_info.max_mtu;
> -               if (mtu > RTE_ETHER_MAX_LEN - eth_overhead) {
> +               if (mtu > RTE_ETHER_MTU) {
>                         rte_port->dev_conf.rxmode.offloads |=
>                                                 DEV_RX_OFFLOAD_JUMBO_FRAME;
>                         rte_port->dev_conf.rxmode.max_rx_pkt_len =
> diff --git a/app/test-pmd/parameters.c b/app/test-pmd/parameters.c
> index 414a0068fb..df5eb10d84 100644
> --- a/app/test-pmd/parameters.c
> +++ b/app/test-pmd/parameters.c
> @@ -834,12 +834,9 @@ launch_args_parse(int argc, char** argv)
>                         }
>                         if (!strcmp(lgopts[opt_idx].name, "max-pkt-len")) {
>                                 n = atoi(optarg);
> -                               if (n >= RTE_ETHER_MIN_LEN) {
> +                               if (n >= RTE_ETHER_MIN_LEN)
>                                         rx_mode.max_rx_pkt_len = (uint32_t) n;
> -                                       if (n > RTE_ETHER_MAX_LEN)
> -                                               rx_offloads |=
> -                                                       DEV_RX_OFFLOAD_JUMBO_FRAME;
> -                               } else
> +                               else
>                                         rte_exit(EXIT_FAILURE,
>                                                  "Invalid max-pkt-len=%d - should be > %d\n",
>                                                  n, RTE_ETHER_MIN_LEN);
> diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
> index 2b60f6c5d3..c256e719ae 100644
> --- a/app/test-pmd/testpmd.c
> +++ b/app/test-pmd/testpmd.c
> @@ -1410,6 +1410,7 @@ init_config(void)
>         struct rte_gro_param gro_param;
>         uint32_t gso_types;
>         uint16_t data_size;
> +       uint16_t eth_overhead;
>         bool warning = 0;
>         int k;
>         int ret;
> @@ -1446,6 +1447,23 @@ init_config(void)
>                         rte_exit(EXIT_FAILURE,
>                                  "rte_eth_dev_info_get() failed\n");
>
> +               /* Update the max_rx_pkt_len to have MTU as RTE_ETHER_MTU */
> +               if (port->dev_info.max_mtu != UINT16_MAX &&
> +                   port->dev_info.max_rx_pktlen > port->dev_info.max_mtu)
> +                       eth_overhead = port->dev_info.max_rx_pktlen -
> +                               port->dev_info.max_mtu;
> +               else
> +                       eth_overhead =
> +                               RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN;
> +
> +               if (port->dev_conf.rxmode.max_rx_pkt_len <=
> +                       (uint32_t)(RTE_ETHER_MTU + eth_overhead))
> +                       port->dev_conf.rxmode.max_rx_pkt_len =
> +                                       RTE_ETHER_MTU + eth_overhead;
> +               else
> +                       port->dev_conf.rxmode.offloads |=
> +                                       DEV_RX_OFFLOAD_JUMBO_FRAME;
> +
>                 if (!(port->dev_info.tx_offload_capa &
>                       DEV_TX_OFFLOAD_MBUF_FAST_FREE))
>                         port->dev_conf.txmode.offloads &=
> --
> 2.17.1
>

Moving the setting of DEV_RX_OFFLOAD_JUMBO_FRAME from
cmd_config_max_pkt_len_parsed() to init_config() doesn't seem to
be correct for the case where max_rx_pkt_len is changed from the
command line via "port config all max-pkt-len".

The init_config() function is only called when testpmd is started,
but the DEV_RX_OFFLOAD_JUMBO_FRAME setting needs to
be recomputed whenever max_rx_pkt_len changes.

(Of course this won't matter when DEV_RX_OFFLOAD_JUMBO_FRAME
is removed, which seems like a great idea, but for now this is impacting
some test automation with 21.02-rc1.)

  reply	other threads:[~2021-01-21 15:27 UTC|newest]

Thread overview: 115+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-09  3:16 [dpdk-dev] [PATCH v1 00/12] fix rx packets dropped issue Steve Yang
2020-12-09  3:16 ` [dpdk-dev] [PATCH v1 01/12] net/dpaa2: fix the jumbo frame flag condition for mtu set Steve Yang
2020-12-09  3:16 ` [dpdk-dev] [PATCH v1 02/12] net/e1000: " Steve Yang
2020-12-09  3:16 ` [dpdk-dev] [PATCH v1 03/12] net/hns3: " Steve Yang
2020-12-09  3:16 ` [dpdk-dev] [PATCH v1 04/12] net/i40e: fix the jumbo frame flag condition Steve Yang
2020-12-09  3:16 ` [dpdk-dev] [PATCH v1 05/12] net/iavf: " Steve Yang
2020-12-09  3:16 ` [dpdk-dev] [PATCH v1 06/12] net/ice: " Steve Yang
2020-12-09  3:16 ` [dpdk-dev] [PATCH v1 07/12] net/ipn3ke: fix the jumbo frame flag condition for mtu set Steve Yang
2020-12-09  3:16 ` [dpdk-dev] [PATCH v1 08/12] net/octeontx: " Steve Yang
2020-12-09  3:16 ` [dpdk-dev] [PATCH v1 09/12] net/octeontx2: fix the jumbo frame flag condition for mtu Steve Yang
2020-12-21  7:16   ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2020-12-09  3:16 ` [dpdk-dev] [PATCH v1 10/12] net/qede: fix the jumbo frame flag condition for mtu set Steve Yang
2020-12-09  3:16 ` [dpdk-dev] [PATCH v1 11/12] net/sfc: " Steve Yang
2020-12-09  3:16 ` [dpdk-dev] [PATCH v1 12/12] net/thunderx: " Steve Yang
2020-12-11  4:31 ` [dpdk-dev] [PATCH v1 00/12] fix rx packets dropped issue Guo, Jia
2020-12-14 17:44 ` Ferruh Yigit
2020-12-17  9:22 ` [dpdk-dev] [PATCH v2 00/22] " Steve Yang
2020-12-17  9:22   ` [dpdk-dev] [PATCH v2 01/22] ethdev: fix MTU size exceeds max rx packet length Steve Yang
2020-12-28 14:51     ` Andrew Rybchenko
2021-01-13 10:32       ` Ferruh Yigit
2020-12-30 10:19     ` oulijun
     [not found]       ` <DM6PR11MB43627F10DDAFC9801816FF5BF9D00@DM6PR11MB4362.namprd11.prod.outlook.com>
2021-01-13 10:25         ` Ferruh Yigit
2021-01-13 11:04         ` Ferruh Yigit
2020-12-17  9:22   ` [dpdk-dev] [PATCH v2 02/22] app/testpmd: fix max rx packet length for VLAN packets Steve Yang
2021-01-13 11:26     ` Ferruh Yigit
2020-12-17  9:22   ` [dpdk-dev] [PATCH v2 03/22] net/dpaa: fix the jumbo frame flag condition for mtu set Steve Yang
2020-12-17  9:22   ` [dpdk-dev] [PATCH v2 04/22] net/dpaa2: " Steve Yang
2020-12-17  9:22   ` [dpdk-dev] [PATCH v2 05/22] net/e1000: " Steve Yang
2020-12-18  2:42     ` Guo, Jia
2020-12-17  9:22   ` [dpdk-dev] [PATCH v2 06/22] net/hns3: " Steve Yang
2020-12-17  9:22   ` [dpdk-dev] [PATCH v2 07/22] net/i40e: fix the jumbo frame flag condition Steve Yang
2020-12-18  2:44     ` Guo, Jia
2020-12-17  9:22   ` [dpdk-dev] [PATCH v2 08/22] net/iavf: " Steve Yang
2020-12-17  9:22   ` [dpdk-dev] [PATCH v2 09/22] net/ice: " Steve Yang
2020-12-17  9:23   ` [dpdk-dev] [PATCH v2 10/22] net/ipn3ke: fix the jumbo frame flag condition for mtu set Steve Yang
2020-12-19  0:54     ` Xu, Rosen
2020-12-17  9:23   ` [dpdk-dev] [PATCH v2 11/22] net/octeontx: " Steve Yang
2020-12-21 15:04     ` [dpdk-dev] [EXT] " Harman Kalra
2020-12-17  9:23   ` [dpdk-dev] [PATCH v2 12/22] net/octeontx2: fix the jumbo frame flag condition for mtu Steve Yang
2020-12-18 10:15     ` Nithin Dabilpuram
2020-12-21  7:19     ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2020-12-17  9:23   ` [dpdk-dev] [PATCH v2 13/22] net/qede: fix the jumbo frame flag condition for mtu set Steve Yang
2020-12-17  9:23   ` [dpdk-dev] [PATCH v2 14/22] net/sfc: " Steve Yang
2020-12-17  9:23   ` [dpdk-dev] [PATCH v2 15/22] net/thunderx: " Steve Yang
2020-12-17  9:23   ` [dpdk-dev] [PATCH v2 16/22] net/ixgbe: fix the jumbo frame flag condition Steve Yang
2020-12-18  2:43     ` Guo, Jia
2020-12-17  9:23   ` [dpdk-dev] [PATCH v2 17/22] net/cxgbe: " Steve Yang
2020-12-17  9:23   ` [dpdk-dev] [PATCH v2 18/22] net/axgbe: fix the jumbo frame flag condition for mtu set Steve Yang
2020-12-17  9:23   ` [dpdk-dev] [PATCH v2 19/22] net/enetc: " Steve Yang
2020-12-17  9:23   ` [dpdk-dev] [PATCH v2 20/22] net/hinic: " Steve Yang
2020-12-17  9:23   ` [dpdk-dev] [PATCH v2 21/22] net/nfp: " Steve Yang
2020-12-17  9:23   ` [dpdk-dev] [PATCH v2 22/22] net/liquidio: " Steve Yang
2021-01-13 11:32   ` [dpdk-dev] [PATCH v2 00/22] fix rx packets dropped issue Ferruh Yigit
2021-01-14  9:45   ` [dpdk-dev] [PATCH v3 " Steve Yang
2021-01-14  9:45   ` [dpdk-dev] [PATCH v3 01/22] ethdev: fix MTU size exceeds max rx packet length Steve Yang
2021-01-14 16:36     ` Ferruh Yigit
2021-01-14 17:13       ` Ferruh Yigit
2021-01-14 17:29         ` Andrew Boyer
2021-01-14 20:44           ` Ferruh Yigit
2021-01-15 10:44     ` oulijun
2021-01-18 10:42       ` Ferruh Yigit
2021-01-19  8:46         ` oulijun
2021-01-23  9:05           ` oulijun
2021-01-25 12:22           ` Ferruh Yigit
2021-01-18  7:04     ` [dpdk-dev] [PATCH v4 00/22] fix rx packets dropped issue Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 01/22] ethdev: fix MTU size exceeds max rx packet length Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 02/22] app/testpmd: fix max rx packet length for VLAN packets Steve Yang
2021-01-21 15:27         ` Lance Richardson [this message]
2021-01-22 14:26           ` Lance Richardson
2021-01-25 12:14           ` Ferruh Yigit
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 03/22] net/dpaa: fix the jumbo frame flag condition for mtu set Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 04/22] net/dpaa2: " Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 05/22] net/e1000: " Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 06/22] net/hns3: " Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 07/22] net/i40e: fix the jumbo frame flag condition Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 08/22] net/iavf: " Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 09/22] net/ice: " Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 10/22] net/ipn3ke: fix the jumbo frame flag condition for mtu set Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 11/22] net/octeontx: " Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 12/22] net/octeontx2: fix the jumbo frame flag condition for mtu Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 13/22] net/qede: fix the jumbo frame flag condition for mtu set Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 14/22] net/sfc: " Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 15/22] net/thunderx: " Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 16/22] net/ixgbe: fix the jumbo frame flag condition Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 17/22] net/cxgbe: " Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 18/22] net/axgbe: fix the jumbo frame flag condition for mtu set Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 19/22] net/enetc: " Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 20/22] net/hinic: " Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 21/22] net/nfp: " Steve Yang
2021-01-18  7:04       ` [dpdk-dev] [PATCH v4 22/22] net/liquidio: " Steve Yang
2021-01-18 11:54       ` [dpdk-dev] [PATCH v4 00/22] fix rx packets dropped issue Ferruh Yigit
2021-01-14  9:45   ` [dpdk-dev] [PATCH v3 02/22] app/testpmd: fix max rx packet length for VLAN packets Steve Yang
2021-01-14  9:45   ` [dpdk-dev] [PATCH v3 03/22] net/dpaa: fix the jumbo frame flag condition for mtu set Steve Yang
2021-01-14 10:26     ` Hemant Agrawal
2021-01-14  9:46   ` [dpdk-dev] [PATCH v3 04/22] net/dpaa2: " Steve Yang
2021-01-14 10:27     ` Hemant Agrawal
2021-01-14  9:46   ` [dpdk-dev] [PATCH v3 05/22] net/e1000: " Steve Yang
2021-01-14  9:46   ` [dpdk-dev] [PATCH v3 06/22] net/hns3: " Steve Yang
2021-01-18  1:30     ` oulijun
2021-01-14  9:46   ` [dpdk-dev] [PATCH v3 07/22] net/i40e: fix the jumbo frame flag condition Steve Yang
2021-01-14  9:46   ` [dpdk-dev] [PATCH v3 08/22] net/iavf: " Steve Yang
2021-01-14  9:46   ` [dpdk-dev] [PATCH v3 09/22] net/ice: " Steve Yang
2021-01-14  9:46   ` [dpdk-dev] [PATCH v3 10/22] net/ipn3ke: fix the jumbo frame flag condition for mtu set Steve Yang
2021-01-14  9:46   ` [dpdk-dev] [PATCH v3 11/22] net/octeontx: " Steve Yang
2021-01-14  9:46   ` [dpdk-dev] [PATCH v3 12/22] net/octeontx2: fix the jumbo frame flag condition for mtu Steve Yang
2021-01-14  9:46   ` [dpdk-dev] [PATCH v3 13/22] net/qede: fix the jumbo frame flag condition for mtu set Steve Yang
2021-01-14  9:47   ` [dpdk-dev] [PATCH v3 14/22] net/sfc: " Steve Yang
2021-01-14  9:47   ` [dpdk-dev] [PATCH v3 15/22] net/thunderx: " Steve Yang
2021-01-14  9:47   ` [dpdk-dev] [PATCH v3 16/22] net/ixgbe: fix the jumbo frame flag condition Steve Yang
2021-01-14  9:47   ` [dpdk-dev] [PATCH v3 17/22] net/cxgbe: " Steve Yang
2021-01-14  9:47   ` [dpdk-dev] [PATCH v3 18/22] net/axgbe: fix the jumbo frame flag condition for mtu set Steve Yang
2021-01-14  9:47   ` [dpdk-dev] [PATCH v3 19/22] net/enetc: " Steve Yang
2021-01-14  9:47   ` [dpdk-dev] [PATCH v3 20/22] net/hinic: " Steve Yang
2021-01-14  9:47   ` [dpdk-dev] [PATCH v3 21/22] net/nfp: " Steve Yang
2021-01-14  9:47   ` [dpdk-dev] [PATCH v3 22/22] net/liquidio: " Steve Yang

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