From 761c4d66900fd7db6927f57eb610f543cc0908e4 Mon Sep 17 00:00:00 2001 From: Steve Yang Date: Mon, 18 Jan 2021 07:04:08 +0000 Subject: [PATCH] app/testpmd: fix max Rx packet length for VLAN packets 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: stable@dpdk.org Signed-off-by: Steve Yang Reviewed-by: Ferruh Yigit --- 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 855dbc2dec..89034c8b72 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 a6a5baa4e1..0e2b9f7d3c 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 &= -- 2.20.1