linux-kernel - [PATCH net-next v5 03/12] page_pool: Add page_pool_dev_alloc

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Message-ID: <20250612154648.1161201-4-mbloch@nvidia.com>
Date: Thu, 12 Jun 2025 18:46:39 +0300
From: Mark Bloch <mbloch@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com>, "Andrew
 Lunn" <andrew+netdev@...n.ch>, Simon Horman <horms@...nel.org>
CC: <saeedm@...dia.com>, <gal@...dia.com>, <leonro@...dia.com>,
	<tariqt@...dia.com>, Leon Romanovsky <leon@...nel.org>, "Jesper Dangaard
 Brouer" <hawk@...nel.org>, Ilias Apalodimas <ilias.apalodimas@...aro.org>,
	Richard Cochran <richardcochran@...il.com>, Alexei Starovoitov
	<ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, John Fastabend
	<john.fastabend@...il.com>, <netdev@...r.kernel.org>,
	<linux-rdma@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<bpf@...r.kernel.org>, Dragos Tatulea <dtatulea@...dia.com>, Mark Bloch
	<mbloch@...dia.com>
Subject: [PATCH net-next v5 03/12] page_pool: Add page_pool_dev_alloc_netmems helper

From: Dragos Tatulea <dtatulea@...dia.com>

This is the netmem counterpart of page_pool_dev_alloc_pages() which
uses the default GFP flags for RX.

Signed-off-by: Dragos Tatulea <dtatulea@...dia.com>
Signed-off-by: Mark Bloch <mbloch@...dia.com>
---
 include/net/page_pool/helpers.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/net/page_pool/helpers.h b/include/net/page_pool/helpers.h
index 93f2c31baf9b..773fc65780b5 100644
--- a/include/net/page_pool/helpers.h
+++ b/include/net/page_pool/helpers.h
@@ -153,6 +153,13 @@ static inline netmem_ref page_pool_dev_alloc_netmem(struct page_pool *pool,
 	return page_pool_alloc_netmem(pool, offset, size, gfp);
 }
 
+static inline netmem_ref page_pool_dev_alloc_netmems(struct page_pool *pool)
+{
+	gfp_t gfp = GFP_ATOMIC | __GFP_NOWARN;
+
+	return page_pool_alloc_netmems(pool, gfp);
+}
+
 static inline struct page *page_pool_alloc(struct page_pool *pool,
 					   unsigned int *offset,
 					   unsigned int *size, gfp_t gfp)
-- 
2.34.1