From: Pavel Begunkov <asml.silence@gmail.com>
To: netdev@vger.kernel.org, "David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Cc: Eric Dumazet <edumazet@google.com>, Wei Liu <wei.liu@kernel.org>,
Paul Durrant <paul@xen.org>,
Pavel Begunkov <asml.silence@gmail.com>
Subject: [PATCH net-next 10/27] net: inline part of skb_csum_hwoffload_help
Date: Sun, 3 Apr 2022 14:06:22 +0100 [thread overview]
Message-ID: <8ca1d5139e1820ac7e55166f164a56b2993d10e1.1648981571.git.asml.silence@gmail.com> (raw)
In-Reply-To: <cover.1648981570.git.asml.silence@gmail.com>
Inline a part of skb_csum_hwoffload_help() responsible for skipping
for HW-accelerated cases.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
include/linux/netdevice.h | 13 ++++++++++---
net/core/dev.c | 11 ++++-------
2 files changed, 14 insertions(+), 10 deletions(-)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index cd7a597c55b1..a4e41f7edc47 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -4699,9 +4699,16 @@ extern u8 netdev_rss_key[NETDEV_RSS_KEY_LEN] __read_mostly;
void netdev_rss_key_fill(void *buffer, size_t len);
int skb_checksum_help(struct sk_buff *skb);
-int skb_crc32c_csum_help(struct sk_buff *skb);
-int skb_csum_hwoffload_help(struct sk_buff *skb,
- const netdev_features_t features);
+int __skb_csum_hwoffload_help(struct sk_buff *skb,
+ const netdev_features_t features);
+
+static inline int skb_csum_hwoffload_help(struct sk_buff *skb,
+ const netdev_features_t features)
+{
+ if ((features & NETIF_F_HW_CSUM) && !skb_csum_is_sctp(skb))
+ return 0;
+ return __skb_csum_hwoffload_help(skb, features);
+}
struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
netdev_features_t features, bool tx_path);
diff --git a/net/core/dev.c b/net/core/dev.c
index 4842a398f08d..6044b6124edc 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3233,7 +3233,7 @@ int skb_checksum_help(struct sk_buff *skb)
}
EXPORT_SYMBOL(skb_checksum_help);
-int skb_crc32c_csum_help(struct sk_buff *skb)
+static inline int skb_crc32c_csum_help(struct sk_buff *skb)
{
__le32 crc32c_csum;
int ret = 0, offset, start;
@@ -3572,16 +3572,13 @@ static struct sk_buff *validate_xmit_vlan(struct sk_buff *skb,
return skb;
}
-int skb_csum_hwoffload_help(struct sk_buff *skb,
- const netdev_features_t features)
+int __skb_csum_hwoffload_help(struct sk_buff *skb,
+ const netdev_features_t features)
{
if (unlikely(skb_csum_is_sctp(skb)))
return !!(features & NETIF_F_SCTP_CRC) ? 0 :
skb_crc32c_csum_help(skb);
- if (features & NETIF_F_HW_CSUM)
- return 0;
-
if (features & (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)) {
switch (skb->csum_offset) {
case offsetof(struct tcphdr, check):
@@ -3592,7 +3589,7 @@ int skb_csum_hwoffload_help(struct sk_buff *skb,
return skb_checksum_help(skb);
}
-EXPORT_SYMBOL(skb_csum_hwoffload_help);
+EXPORT_SYMBOL(__skb_csum_hwoffload_help);
static struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device *dev, bool *again)
{
--
2.35.1
next prev parent reply other threads:[~2022-04-03 13:09 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-03 13:06 [RFC net-next 00/27] net and/or udp optimisations Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 01/27] sock: deduplicate ->sk_wmem_alloc check Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 02/27] sock: optimise sock_def_write_space send refcounting Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 03/27] sock: optimise sock_def_write_space barriers Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 04/27] skbuff: drop zero check from skb_zcopy_set Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 05/27] skbuff: drop null check from skb_zcopy Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 06/27] net: xen: set zc flags only when there is ubuf Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 07/27] skbuff: introduce skb_is_zcopy() Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 08/27] skbuff: optimise alloc_skb_with_frags() Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 09/27] net: inline sock_alloc_send_skb Pavel Begunkov
2022-04-03 13:06 ` Pavel Begunkov [this message]
2022-04-03 13:06 ` [PATCH net-next 11/27] net: inline skb_zerocopy_iter_dgram Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 12/27] ipv6: inline ip6_local_out() Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 13/27] ipv6: help __ip6_finish_output() inlining Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 14/27] ipv6: refactor ip6_finish_output2() Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 15/27] net: inline dev_queue_xmit() Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 16/27] ipv6: partially inline fl6_update_dst() Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 17/27] tcp: optimise skb_zerocopy_iter_stream() Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 18/27] net: optimise ipcm6 cookie init Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 19/27] udp/ipv6: refactor udpv6_sendmsg udplite checks Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 20/27] udp/ipv6: move pending section of udpv6_sendmsg Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 21/27] udp/ipv6: prioritise the ip6 path over ip4 checks Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 22/27] udp/ipv6: optimise udpv6_sendmsg() daddr checks Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 23/27] udp/ipv6: optimise out daddr reassignment Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 24/27] udp/ipv6: clean up udpv6_sendmsg's saddr init Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 25/27] ipv6: refactor opts push in __ip6_make_skb() Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 26/27] ipv6: improve opt-less __ip6_make_skb() Pavel Begunkov
2022-04-03 13:06 ` [PATCH net-next 27/27] ipv6: clean up ip6_setup_cork Pavel Begunkov
2022-04-06 9:44 ` [RFC net-next 00/27] net and/or udp optimisations Eric Dumazet
2022-04-11 12:04 ` Pavel Begunkov
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