Hi > -----Original Message----- > From: dev <dev-boun...@dpdk.org> On Behalf Of Lijun Ou > Sent: Friday, March 5, 2021 08:56 > To: Yigit, Ferruh <ferruh.yi...@intel.com> > Cc: dev@dpdk.org; linux...@openeuler.org > Subject: [dpdk-dev] [PATCH 2/3] app/testpmd: remove forwarding config from > parsing Rx and Tx > > From: Huisong Li <lihuis...@huawei.com> > > The "fwd_config_setup()" function does release and apply for memory of > forwarding flows, and re-establish these flows when rxq/txq or rxd/txd is > changed. The function is also called by "start_packet_forwarding()" when user > executes "start" cmd. > All changes for rxq/txq or rxd/txd can be updated uniformly when this command > is executed. Therefore, it is a little redundant in the > "cmd_config_rx_tx_parsed" > function. > > In addition, the forwarding flows under one TC is configured based on number > of queues allocated to TC. And number of queues allocated to TC is updated > after calling "rte_eth_dev_configure" > again. If the number of queues is reduced after configuring the DCB, and then, > release and apply for flow memory, and reinitialize the forwarding flows under > the DCB mode based on the old TC information. As a result, null pointer may be > accessed.
The patch looks good to me. But in commit log, you mean forwarding streams, right? Flows will confuse to mean rte_flow. > > Like: > set nbcore 4 > port stop all > port config 0 dcb vt off 4 pfc on > port start all > port stop all > port config all rxq 8 > port config all txq 8 > > At the moment, a segmentation fault occurs. > > Fixes: ce8d561418d4 ("app/testpmd: add port configuration settings") > Cc: sta...@dpdk.org > > Signed-off-by: Huisong Li <lihuis...@huawei.com> > Signed-off-by: Lijun Ou <ouli...@huawei.com> > --- > app/test-pmd/cmdline.c | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c index > 832ae70..8b0f7d5 100644 > --- a/app/test-pmd/cmdline.c > +++ b/app/test-pmd/cmdline.c > @@ -1837,8 +1837,6 @@ cmd_config_rx_tx_parsed(void *parsed_result, > return; > } > > - fwd_config_setup(); > - > init_port_config(); > > cmd_reconfig_device_queue(RTE_PORT_ALL, 1, 1); > -- > 2.7.4