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authorJakub Kicinski <kuba@kernel.org>2023-11-26 15:07:38 -0800
committerPaolo Abeni <pabeni@redhat.com>2023-11-28 15:48:39 +0100
commitd49010adae737638447369a4eff8f1aab736b076 (patch)
treec627989bb9b26d93ddebaa6a2746d58619acdbd8 /net/core/page_pool.c
parent69cb4952b6f6a226c1c0a7ca400398aaa8f75cf2 (diff)
net: page_pool: expose page pool stats via netlink
Dump the stats into netlink. More clever approaches like dumping the stats per-CPU for each CPU individually to see where the packets get consumed can be implemented in the future. A trimmed example from a real (but recently booted system): $ ./cli.py --no-schema --spec netlink/specs/netdev.yaml \ --dump page-pool-stats-get [{'info': {'id': 19, 'ifindex': 2}, 'alloc-empty': 48, 'alloc-fast': 3024, 'alloc-refill': 0, 'alloc-slow': 48, 'alloc-slow-high-order': 0, 'alloc-waive': 0, 'recycle-cache-full': 0, 'recycle-cached': 0, 'recycle-released-refcnt': 0, 'recycle-ring': 0, 'recycle-ring-full': 0}, {'info': {'id': 18, 'ifindex': 2}, 'alloc-empty': 66, 'alloc-fast': 11811, 'alloc-refill': 35, 'alloc-slow': 66, 'alloc-slow-high-order': 0, 'alloc-waive': 0, 'recycle-cache-full': 1145, 'recycle-cached': 6541, 'recycle-released-refcnt': 0, 'recycle-ring': 1275, 'recycle-ring-full': 0}, {'info': {'id': 17, 'ifindex': 2}, 'alloc-empty': 73, 'alloc-fast': 62099, 'alloc-refill': 413, ... Acked-by: Jesper Dangaard Brouer <hawk@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/core/page_pool.c')
-rw-r--r--net/core/page_pool.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/page_pool.c b/net/core/page_pool.c
index a821fb5fe054..3d0938a60646 100644
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c
@@ -71,7 +71,7 @@ static const char pp_stats[][ETH_GSTRING_LEN] = {
* is passed to this API which is filled in. The caller can then report
* those stats to the user (perhaps via ethtool, debugfs, etc.).
*/
-bool page_pool_get_stats(struct page_pool *pool,
+bool page_pool_get_stats(const struct page_pool *pool,
struct page_pool_stats *stats)
{
int cpu = 0;