From: John Fastabend <john.fastabend@gmail.com>
To: Takshak Chahande <ctakshak@fb.com>,
netdev@vger.kernel.org, bpf@vger.kernel.org
Cc: andrii@kernel.org, ast@kernel.org, ctakshak@fb.com,
ndixit@fb.com, kafai@fb.com, andriin@fb.com,
daniel@iogearbox.net, yhs@fb.com, ctakshak@gmail.com
Subject: RE: [PATCH bpf-next v5 1/2] bpf: Extend batch operations for map-in-map bpf-maps
Date: Sun, 08 May 2022 20:23:56 -0700 [thread overview]
Message-ID: <6278894cd9ef6_6265d20832@john.notmuch> (raw)
In-Reply-To: <20220506010049.1980482-1-ctakshak@fb.com>
Takshak Chahande wrote:
> This patch extends batch operations support for map-in-map map-types:
> BPF_MAP_TYPE_HASH_OF_MAPS and BPF_MAP_TYPE_ARRAY_OF_MAPS
>
> A usecase where outer HASH map holds hundred of VIP entries and its
> associated reuse-ports per VIP stored in REUSEPORT_SOCKARRAY type
> inner map, needs to do batch operation for performance gain.
>
> This patch leverages the exiting generic functions for most of the batch
> operations. As map-in-map's value contains the actual reference of the inner map,
> for BPF_MAP_TYPE_HASH_OF_MAPS type, it needed an extra step to fetch the
> map_id from the reference value.
>
> selftests are added in next patch 2/2.
>
> Signed-off-by: Takshak Chahande <ctakshak@fb.com>
> Acked-by: Yonghong Song <yhs@fb.com>
> ---
Acked-by: John Fastabend <john.fastabend@gmail.com>
prev parent reply other threads:[~2022-05-09 3:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-06 1:00 [PATCH bpf-next v5 1/2] bpf: Extend batch operations for map-in-map bpf-maps Takshak Chahande
2022-05-06 1:00 ` [PATCH bpf-next v5 2/2] selftests/bpf: handle " Takshak Chahande
2022-05-09 3:23 ` John Fastabend [this message]
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