[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20250609145833.990793-3-mbloch@nvidia.com>
Date: Mon, 9 Jun 2025 17:58:23 +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>
CC: <saeedm@...dia.com>, <gal@...dia.com>, <leonro@...dia.com>,
<tariqt@...dia.com>, Leon Romanovsky <leon@...nel.org>, Simon Horman
<horms@...nel.org>, Richard Cochran <richardcochran@...il.com>, "Alexei
Starovoitov" <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>,
"Jesper Dangaard Brouer" <hawk@...nel.org>, 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>, Cosmin Ratiu
<cratiu@...dia.com>, Mark Bloch <mbloch@...dia.com>
Subject: [PATCH net-next v3 02/12] net: Add skb_can_coalesce for netmem
From: Dragos Tatulea <dtatulea@...dia.com>
Allow drivers that have moved over to netmem to do fragment coalescing.
Signed-off-by: Dragos Tatulea <dtatulea@...dia.com>
Signed-off-by: Cosmin Ratiu <cratiu@...dia.com>
Reviewed-by: Tariq Toukan <tariqt@...dia.com>
Signed-off-by: Mark Bloch <mbloch@...dia.com>
---
include/linux/skbuff.h | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 5520524c93bf..9508968cb300 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3873,20 +3873,26 @@ static inline int __must_check skb_put_padto(struct sk_buff *skb, unsigned int l
bool csum_and_copy_from_iter_full(void *addr, size_t bytes, __wsum *csum, struct iov_iter *i)
__must_check;
-static inline bool skb_can_coalesce(struct sk_buff *skb, int i,
- const struct page *page, int off)
+static inline bool skb_can_coalesce_netmem(struct sk_buff *skb, int i,
+ netmem_ref netmem, int off)
{
if (skb_zcopy(skb))
return false;
if (i) {
const skb_frag_t *frag = &skb_shinfo(skb)->frags[i - 1];
- return page == skb_frag_page(frag) &&
+ return netmem == skb_frag_netmem(frag) &&
off == skb_frag_off(frag) + skb_frag_size(frag);
}
return false;
}
+static inline bool skb_can_coalesce(struct sk_buff *skb, int i,
+ const struct page *page, int off)
+{
+ return skb_can_coalesce_netmem(skb, i, page_to_netmem(page), off);
+}
+
static inline int __skb_linearize(struct sk_buff *skb)
{
return __pskb_pull_tail(skb, skb->data_len) ? 0 : -ENOMEM;
--
2.34.1
Powered by blists - more mailing lists