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| author | Alexander Lobakin <[email protected]> | 2024-03-29 16:55:07 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2024-04-03 01:13:49 +0000 |
| commit | 39806b96c89ae5d52092c8f86393ecbfaae26697 (patch) | |
| tree | 78701c158045e79d05961247fd068dad9fe12d3c /net/core/page_pool.c | |
| parent | page_pool: check for PP direct cache locality later (diff) | |
| download | kernel-39806b96c89ae5d52092c8f86393ecbfaae26697.tar.gz kernel-39806b96c89ae5d52092c8f86393ecbfaae26697.zip | |
page_pool: try direct bulk recycling
Now that the checks for direct recycling possibility live inside the
Page Pool core, reuse them when performing bulk recycling.
page_pool_put_page_bulk() can be called from process context as well,
page_pool_napi_local() takes care of this at the very beginning.
Under high .ndo_xdp_xmit() traffic load, the win is 2-3% Pps assuming
the sending driver uses xdp_return_frame_bulk() on Tx completion.
Signed-off-by: Alexander Lobakin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'net/core/page_pool.c')
| -rw-r--r-- | net/core/page_pool.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/net/core/page_pool.c b/net/core/page_pool.c index 9d56257e444b..4c175091fc0a 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -772,8 +772,11 @@ void page_pool_put_page_bulk(struct page_pool *pool, void **data, int count) { int i, bulk_len = 0; + bool allow_direct; bool in_softirq; + allow_direct = page_pool_napi_local(pool); + for (i = 0; i < count; i++) { struct page *page = virt_to_head_page(data[i]); @@ -781,13 +784,13 @@ void page_pool_put_page_bulk(struct page_pool *pool, void **data, if (!page_pool_is_last_ref(page)) continue; - page = __page_pool_put_page(pool, page, -1, false); + page = __page_pool_put_page(pool, page, -1, allow_direct); /* Approved for bulk recycling in ptr_ring cache */ if (page) data[bulk_len++] = page; } - if (unlikely(!bulk_len)) + if (!bulk_len) return; /* Bulk producer into ptr_ring page_pool cache */ |