Hi, > -----Original Message----- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Zhihong Wang > Sent: Wednesday, December 23, 2015 8:03 PM > To: dev at dpdk.org > Subject: [dpdk-dev] [PATCH 3/3] examples/l3fwd: Handle SIGINT and SIGTERM in > l3fwd > > Handle SIGINT and SIGTERM in l3fwd. > > Signed-off-by: Zhihong Wang <zhihong.wang at intel.com> > --- > examples/l3fwd/main.c | 25 +++++++++++++++++++++++++ > 1 file changed, 25 insertions(+) > > diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c > index 5b0c2dd..aae16d2 100644 > --- a/examples/l3fwd/main.c > +++ b/examples/l3fwd/main.c > @@ -41,6 +41,7 @@ > #include <stdarg.h> > #include <errno.h> > #include <getopt.h> > +#include <signal.h> > > #include <rte_common.h> > #include <rte_vect.h> > @@ -2559,6 +2560,27 @@ check_all_ports_link_status(uint8_t port_num, uint32_t > port_mask) > } > } > > +/* When we receive a INT signal, close all ports */ > +static void > +sigint_handler(__rte_unused int signum) > +{ > + unsigned portid, nb_ports; > + > + printf("Preparing to exit...\n"); > + nb_ports = rte_eth_dev_count(); > + for (portid = 0; portid < nb_ports; portid++) { > + if ((enabled_port_mask & (1 << portid)) == 0) { > + continue; > + } > + printf("Stopping port %d...", portid); > + rte_eth_dev_stop(portid); > + rte_eth_dev_close(portid);
Hmm, so your interrupt thread invokes dev_stop, while IO lcores keep calling rx_burst/tx_burst? For graceful shutdown on SIGINT, I suppose you first have to stop your IO lcores first. Let say have a global var: 'stop' that every lcore has to check from time to time (or something similar). Konstantin > + printf(" Done\n"); > + } > + printf("Bye...\n"); > + exit(0); > +} > + > int > main(int argc, char **argv) > { > @@ -2572,6 +2594,9 @@ main(int argc, char **argv) > uint32_t n_tx_queue, nb_lcores; > uint8_t portid, nb_rx_queue, queue, socketid; > > + signal(SIGINT, sigint_handler); > + signal(SIGTERM, sigint_handler); > + > /* init EAL */ > ret = rte_eal_init(argc, argv); > if (ret < 0) > -- > 2.5.0