netdev - Re: [PATCH bpf-next v2 6/6] tools: Add definitions for devmap

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Date:   Mon, 08 Jul 2019 11:57:26 +0200
From:   Toke Høiland-Jørgensen <toke@...hat.com>
To:     Quentin Monnet <quentin.monnet@...ronome.com>,
        Daniel Borkmann <daniel@...earbox.net>
Cc:     Alexei Starovoitov <ast@...nel.org>, netdev@...r.kernel.org,
        David Miller <davem@...emloft.net>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Björn Töpel 
        <bjorn.topel@...il.com>
Subject: Re: [PATCH bpf-next v2 6/6] tools: Add definitions for devmap_hash map type

Quentin Monnet <quentin.monnet@...ronome.com> writes:

> 2019-07-06 10:47 UTC+0200 ~ Toke Høiland-Jørgensen <toke@...hat.com>
>> From: Toke Høiland-Jørgensen <toke@...hat.com>
>> 
>> This adds a selftest, syncs the tools/ uapi header and adds the
>> devmap_hash name to bpftool for the new devmap_hash map type.
>> 
>> Signed-off-by: Toke Høiland-Jørgensen <toke@...hat.com>
>> ---
>>  tools/bpf/bpftool/map.c                 |    1 +
>>  tools/include/uapi/linux/bpf.h          |    1 +
>>  tools/testing/selftests/bpf/test_maps.c |   16 ++++++++++++++++
>>  3 files changed, 18 insertions(+)
>> 
>> diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c
>> index 5da5a7311f13..c345f819b840 100644
>> --- a/tools/bpf/bpftool/map.c
>> +++ b/tools/bpf/bpftool/map.c
>> @@ -37,6 +37,7 @@ const char * const map_type_name[] = {
>>  	[BPF_MAP_TYPE_ARRAY_OF_MAPS]		= "array_of_maps",
>>  	[BPF_MAP_TYPE_HASH_OF_MAPS]		= "hash_of_maps",
>>  	[BPF_MAP_TYPE_DEVMAP]			= "devmap",
>> +	[BPF_MAP_TYPE_DEVMAP_HASH]		= "devmap_hash",
>>  	[BPF_MAP_TYPE_SOCKMAP]			= "sockmap",
>>  	[BPF_MAP_TYPE_CPUMAP]			= "cpumap",
>>  	[BPF_MAP_TYPE_XSKMAP]			= "xskmap",
>> diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
>> index cecf42c871d4..8afaa0a19c67 100644
>> --- a/tools/include/uapi/linux/bpf.h
>> +++ b/tools/include/uapi/linux/bpf.h
>> @@ -134,6 +134,7 @@ enum bpf_map_type {
>>  	BPF_MAP_TYPE_QUEUE,
>>  	BPF_MAP_TYPE_STACK,
>>  	BPF_MAP_TYPE_SK_STORAGE,
>> +	BPF_MAP_TYPE_DEVMAP_HASH,
>>  };
>>  
>>  /* Note that tracing related programs such as
>
> Hi Toke, thanks for the bpftool update!
>
> Could you please also complete the documentation and bash completion for
> the map type? We probably want to add the new name to the "bpftool map
> help" message [0], to the manual page [1], and to the bash completion
> file [2].

Sure, can do :)

-Toke