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Signed-off-by: Serhii Iliushyk --- doc/guides/nics/ntnic.rst | 9 +++++++++ drivers/net/ntnic/ntnic_ethdev.c | 21 +++++++++++++++++++++ 2 files changed, 30 insertions(+) diff --git a/doc/guides/nics/ntnic.rst b/doc/guides/nics/ntnic.rst index 5375d89a2d..01b6dca652 100644 --- a/doc/guides/nics/ntnic.rst +++ b/doc/guides/nics/ntnic.rst @@ -136,6 +136,15 @@ Multiple arguments for the same device are separated by ‘,’ comma. By default, the value is set to 1. +``exception_path`` parameter [int] + + Enable exception path for unmatched packets to go through queue 0. + + To enable exception_path:: + + -a ::00.0,exception_path=1 + + By default, the value is set to 0. Logging and Debugging --------------------- diff --git a/drivers/net/ntnic/ntnic_ethdev.c b/drivers/net/ntnic/ntnic_ethdev.c index 01b3fe00ef..29508888a3 100644 --- a/drivers/net/ntnic/ntnic_ethdev.c +++ b/drivers/net/ntnic/ntnic_ethdev.c @@ -73,11 +73,13 @@ uint64_t rte_tsc_freq; #define ETH_DEV_NTNIC_HELP_ARG "help" #define ETH_DEV_NTHW_RXQUEUES_ARG "rxqs" #define ETH_DEV_NTHW_TXQUEUES_ARG "txqs" +#define ETH_DEV_NTHW_EXCEPTION_PATH_ARG "exception_path" static const char *const valid_arguments[] = { ETH_DEV_NTNIC_HELP_ARG, ETH_DEV_NTHW_RXQUEUES_ARG, ETH_DEV_NTHW_TXQUEUES_ARG, + ETH_DEV_NTHW_EXCEPTION_PATH_ARG, NULL, }; @@ -2260,6 +2262,25 @@ nthw_pci_dev_init(struct rte_pci_device *pci_dev) NT_LOG_DBGX(DBG, NTNIC, "devargs: %s=%u", ETH_DEV_NTHW_TXQUEUES_ARG, nb_tx_queues); } + + kvargs_count = rte_kvargs_count(kvlist, ETH_DEV_NTHW_EXCEPTION_PATH_ARG); + + if (kvargs_count != 0) { + assert(kvargs_count == 1); + res = rte_kvargs_process(kvlist, ETH_DEV_NTHW_EXCEPTION_PATH_ARG, + &nthw_string_to_u32, &exception_path); + + if (res < 0) { + NT_LOG_DBGX(ERR, NTNIC, + "problem with command line arguments: res=%d", res); + return -1; + } + + NT_LOG_DBGX(DBG, NTNIC, "devargs: %s=%u", + ETH_DEV_NTHW_EXCEPTION_PATH_ARG, exception_path); + } + + rte_kvargs_free(kvlist); } -- 2.45.0