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| author | Joe Damato <jdamato@fastly.com> | 2022-03-01 23:55:49 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-03-03 09:55:28 +0000 |
| commit | 6b95e3388b1ea0ca63500c5a6e39162dbf828433 (patch) | |
| tree | 3d15476a44c79f2230e2467afa937193c64341b2 /include/net/page_pool.h | |
| parent | ad6fa1e1ab1b8164f1ba296b1b4dc556a483bcad (diff) | |
| download | linux-6b95e3388b1ea0ca63500c5a6e39162dbf828433.tar.bz2 | |
page_pool: Add function to batch and return stats
Adds a function page_pool_get_stats which can be used by drivers to obtain
stats for a specified page_pool.
Signed-off-by: Joe Damato <jdamato@fastly.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/page_pool.h')
| -rw-r--r-- | include/net/page_pool.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/net/page_pool.h b/include/net/page_pool.h index 298af95bbf96..ea5fb70e5101 100644 --- a/include/net/page_pool.h +++ b/include/net/page_pool.h @@ -107,6 +107,23 @@ struct page_pool_recycle_stats { * refcnt */ }; + +/* This struct wraps the above stats structs so users of the + * page_pool_get_stats API can pass a single argument when requesting the + * stats for the page pool. + */ +struct page_pool_stats { + struct page_pool_alloc_stats alloc_stats; + struct page_pool_recycle_stats recycle_stats; +}; + +/* + * Drivers that wish to harvest page pool stats and report them to users + * (perhaps via ethtool, debugfs, or another mechanism) can allocate a + * struct page_pool_stats call page_pool_get_stats to get stats for the specified pool. + */ +bool page_pool_get_stats(struct page_pool *pool, + struct page_pool_stats *stats); #endif struct page_pool { |