app/testpmd: update Rx offload after setting MTU
Currently, Rx offload capabilities and max_rx_pkt_len in the struct
variable named rte_port are not updated after setting mtu successfully
in port_mtu_set function by 'port config mtu <port_id> <value>' command.
This may lead to reconfig mtu to the initial value in the driver when
recalling rte_eth_dev_configure API interface.
This patch updates Rx offload capabilities and max_rx_pkt_len after
setting mtu successfully when configuring mtu.
Fixes: ae03d0d18a
("app/testpmd: command to configure MTU")
Cc: stable@dpdk.org
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
parent
0654d4a8ad
commit
150c9ac2df
@ -1215,7 +1215,9 @@ void
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port_mtu_set(portid_t port_id, uint16_t mtu)
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{
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int diag;
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struct rte_port *rte_port = &ports[port_id];
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struct rte_eth_dev_info dev_info;
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uint16_t eth_overhead;
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int ret;
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if (port_id_is_invalid(port_id, ENABLED_WARN))
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@ -1231,8 +1233,25 @@ port_mtu_set(portid_t port_id, uint16_t mtu)
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return;
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}
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diag = rte_eth_dev_set_mtu(port_id, mtu);
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if (diag == 0)
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if (diag == 0 &&
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dev_info.rx_offload_capa & DEV_RX_OFFLOAD_JUMBO_FRAME) {
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/*
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* Ether overhead in driver is equal to the difference of
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* max_rx_pktlen and max_mtu in rte_eth_dev_info when the
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* device supports jumbo frame.
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*/
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eth_overhead = dev_info.max_rx_pktlen - dev_info.max_mtu;
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if (mtu > RTE_ETHER_MAX_LEN - eth_overhead) {
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rte_port->dev_conf.rxmode.offloads |=
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DEV_RX_OFFLOAD_JUMBO_FRAME;
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rte_port->dev_conf.rxmode.max_rx_pkt_len =
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mtu + eth_overhead;
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} else
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rte_port->dev_conf.rxmode.offloads &=
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~DEV_RX_OFFLOAD_JUMBO_FRAME;
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return;
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}
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printf("Set MTU failed. diag=%d\n", diag);
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}
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