[dpdk-dev] [PATCH 07/25] eal: Signal error when CPU isn't supported
Stephen Hemminger
stephen at networkplumber.org
Fri Jan 27 17:27:38 CET 2017
On Fri, 27 Jan 2017 09:56:45 -0500
Aaron Conole <aconole at redhat.com> wrote:
> It's now possible to gracefully exit the application, or for
> applications which support non-dpdk datapaths working in concert with
> DPDK datapaths, there no longer is the possibility of exiting for
> unsupported CPUs.
>
> Signed-off-by: Aaron Conole <aconole at redhat.com>
> ---
> lib/librte_eal/linuxapp/eal/eal.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c
> index 413be16..cd976f5 100644
> --- a/lib/librte_eal/linuxapp/eal/eal.c
> +++ b/lib/librte_eal/linuxapp/eal/eal.c
> @@ -752,7 +752,10 @@ rte_eal_init(int argc, char **argv)
> char thread_name[RTE_MAX_THREAD_NAME_LEN];
>
> /* checks if the machine is adequate */
> - rte_cpu_check_supported();
> + if (!rte_cpu_is_supported()) {
> + rte_errno = ENOTSUP;
> + return -1;
> + }
>
I like not having DPDK applications panic.
My concern is that naive user will not know to check rte_errno. Why not put
a high severity error out as well. If logging is not up just use stderr.
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