2021-03-16 20:45 (UTC+0800), Xueming Li:
[...]
> diff --git a/lib/librte_eal/common/eal_common_bus.c
> b/lib/librte_eal/common/eal_common_bus.c
> index baa5b532af..ebbb3995f6 100644
> --- a/lib/librte_eal/common/eal_common_bus.c
> +++ b/lib/librte_eal/common/eal_common_bus.c
> @@ -277,3 +277,19 @@ rte_bus_sigbus_handler(const void *failure_addr)
>
> return ret;
> }
> +
> +static bool mode_set;
Could be function-local if we really want to save list traversals.
> +
> +void
> +rte_bus_scan_mode_update(enum rte_bus_scan_mode mode)
> +{
> + struct rte_bus *bus;
> +
> + if (mode_set)
> + return;
> + TAILQ_FOREACH(bus, &rte_bus_list, next) {
> + if (bus->conf.scan_mode == RTE_BUS_SCAN_UNDEFINED)
> + bus->conf.scan_mode = mode;
> + }
> + mode_set = true;
> +}
[...]
> /**
> * Create the unix channel for primary/secondary communication.
> *
> diff --git a/lib/librte_eal/rte_eal_exports.def
> b/lib/librte_eal/rte_eal_exports.def
> index 474cf123fa..2757f31461 100644
> --- a/lib/librte_eal/rte_eal_exports.def
> +++ b/lib/librte_eal/rte_eal_exports.def
> @@ -11,6 +11,7 @@ EXPORTS
> rte_bus_probe
> rte_bus_register
> rte_bus_scan
> + rte_bus_scan_mode_update
> rte_bus_unregister
> rte_calloc
> rte_calloc_socket
> diff --git a/lib/librte_eal/version.map b/lib/librte_eal/version.map
> index fce90a112f..171bca478d 100644
> --- a/lib/librte_eal/version.map
> +++ b/lib/librte_eal/version.map
> @@ -417,6 +417,8 @@ EXPERIMENTAL {
> INTERNAL {
> global:
>
> + rte_bus_scan_mode_update;
> +
> rte_mem_lock;
> rte_mem_map;
> rte_mem_page_size;
New function is private to EAL, so it doesn't need exporting.
