diff options
| author | Horatiu Vultur <horatiu.vultur@microchip.com> | 2023-04-22 16:23:44 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-04-24 18:58:04 -0700 |
| commit | 700f11eb2cbea349bda2599b4b676b49d43b4175 (patch) | |
| tree | 62fcef2e01e3dee4946f51350fa56dfec90ee312 /drivers/net/ethernet/microchip/lan966x/lan966x_main.h | |
| parent | ee3392ed16b064594a14ce5886e412efb05ed17b (diff) | |
lan966x: Don't use xdp_frame when action is XDP_TX
When the action of an xdp program was XDP_TX, lan966x was creating
a xdp_frame and use this one to send the frame back. But it is also
possible to send back the frame without needing a xdp_frame, because
it is possible to send it back using the page.
And then once the frame is transmitted is possible to use directly
page_pool_recycle_direct as lan966x is using page pools.
This would save some CPU usage on this path, which results in higher
number of transmitted frames. Bellow are the statistics:
Frame size: Improvement:
64 ~8%
256 ~11%
512 ~8%
1000 ~0%
1500 ~0%
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://lore.kernel.org/r/20230422142344.3630602-1-horatiu.vultur@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/microchip/lan966x/lan966x_main.h')
| -rw-r--r-- | drivers/net/ethernet/microchip/lan966x/lan966x_main.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.h b/drivers/net/ethernet/microchip/lan966x/lan966x_main.h index 851afb0166b1..c977c70abc3d 100644 --- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.h +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.h @@ -243,6 +243,7 @@ struct lan966x_tx_dcb_buf { union { struct sk_buff *skb; struct xdp_frame *xdpf; + struct page *page; } data; u32 len; u32 used : 1; @@ -541,10 +542,7 @@ int lan966x_ptp_setup_traps(struct lan966x_port *port, struct ifreq *ifr); int lan966x_ptp_del_traps(struct lan966x_port *port); int lan966x_fdma_xmit(struct sk_buff *skb, __be32 *ifh, struct net_device *dev); -int lan966x_fdma_xmit_xdpf(struct lan966x_port *port, - struct xdp_frame *frame, - struct page *page, - bool dma_map); +int lan966x_fdma_xmit_xdpf(struct lan966x_port *port, void *ptr, u32 len); int lan966x_fdma_change_mtu(struct lan966x *lan966x); void lan966x_fdma_netdev_init(struct lan966x *lan966x, struct net_device *dev); void lan966x_fdma_netdev_deinit(struct lan966x *lan966x, struct net_device *dev); |