netdev - [PATCH net-next v2] nfp: using napi_build_skb() to replace build

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date: Thu, 26 Oct 2023 10:00:58 +0200
From: Louis Peens <louis.peens@...igine.com>
To: David Miller <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>
Cc: Wojciech Drewek <wojciech.drewek@...el.com>,
	Fei Qin <fei.qin@...igine.com>,
	netdev@...r.kernel.org,
	oss-drivers@...igine.com
Subject: [PATCH net-next v2] nfp: using napi_build_skb() to replace build_skb()

From: Fei Qin <fei.qin@...igine.com>

The napi_build_skb() can reuse the skb in skb cache per CPU or
can allocate skbs in bulk, which helps improve the performance.

Signed-off-by: Fei Qin <fei.qin@...igine.com>
Signed-off-by: Louis Peens <louis.peens@...igine.com>
---
v1->v2:
Dropped the changes for the *_ctrl_* paths, as they were not within
napi context. Thanks Wojciech for pointing this out.

 drivers/net/ethernet/netronome/nfp/nfd3/dp.c | 2 +-
 drivers/net/ethernet/netronome/nfp/nfdk/dp.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/nfd3/dp.c b/drivers/net/ethernet/netronome/nfp/nfd3/dp.c
index 0cc026b0aefd..17381bfc15d7 100644
--- a/drivers/net/ethernet/netronome/nfp/nfd3/dp.c
+++ b/drivers/net/ethernet/netronome/nfp/nfd3/dp.c
@@ -1070,7 +1070,7 @@ static int nfp_nfd3_rx(struct nfp_net_rx_ring *rx_ring, int budget)
 				nfp_repr_inc_rx_stats(netdev, pkt_len);
 		}
 
-		skb = build_skb(rxbuf->frag, true_bufsz);
+		skb = napi_build_skb(rxbuf->frag, true_bufsz);
 		if (unlikely(!skb)) {
 			nfp_nfd3_rx_drop(dp, r_vec, rx_ring, rxbuf, NULL);
 			continue;
diff --git a/drivers/net/ethernet/netronome/nfp/nfdk/dp.c b/drivers/net/ethernet/netronome/nfp/nfdk/dp.c
index 33b6d74adb4b..8d78c6faefa8 100644
--- a/drivers/net/ethernet/netronome/nfp/nfdk/dp.c
+++ b/drivers/net/ethernet/netronome/nfp/nfdk/dp.c
@@ -1189,7 +1189,7 @@ static int nfp_nfdk_rx(struct nfp_net_rx_ring *rx_ring, int budget)
 				nfp_repr_inc_rx_stats(netdev, pkt_len);
 		}
 
-		skb = build_skb(rxbuf->frag, true_bufsz);
+		skb = napi_build_skb(rxbuf->frag, true_bufsz);
 		if (unlikely(!skb)) {
 			nfp_nfdk_rx_drop(dp, r_vec, rx_ring, rxbuf, NULL);
 			continue;
-- 
2.34.1