#
700f11eb |
|
22-Apr-2023 |
Horatiu Vultur <horatiu.vultur@microchip.com> |
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>
|
#
a825b611 |
|
23-Nov-2022 |
Horatiu Vultur <horatiu.vultur@microchip.com> |
net: lan966x: Add support for XDP_REDIRECT Extend lan966x XDP support with the action XDP_REDIRECT. This is similar with the XDP_TX, so a lot of functionality can be reused. Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
|
#
19c6f534 |
|
23-Nov-2022 |
Horatiu Vultur <horatiu.vultur@microchip.com> |
net: lan966x: Add support for XDP_TX Extend lan966x XDP support with the action XDP_TX. In this case when the received buffer needs to execute XDP_TX, the buffer will be moved to the TX buffers. So a new RX buffer will be allocated. When the TX finish with the frame, it would give back the buffer to the page pool. Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
|
#
560c7223 |
|
23-Nov-2022 |
Horatiu Vultur <horatiu.vultur@microchip.com> |
net: lan966x: Update dma_dir of page_pool_params To add support for XDP_TX it is required to be able to write to the DMA area therefore it is required that the pages will be mapped using DMA_BIDIRECTIONAL flag. Therefore check if there are any xdp programs on the interfaces and in that case set DMA_BIDRECTIONAL otherwise use DMA_FROM_DEVICE. Therefore when a new XDP program is added it is required to redo the page_pool. Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
|
#
7292bb06 |
|
23-Nov-2022 |
Horatiu Vultur <horatiu.vultur@microchip.com> |
net: lan966x: Add XDP_PACKET_HEADROOM Update the page_pool params to allocate XDP_PACKET_HEADROOM space as headroom for all received frames. This is needed for when the XDP_TX and XDP_REDIRECT are implemented. Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
|
#
6a2159be |
|
09-Nov-2022 |
Horatiu Vultur <horatiu.vultur@microchip.com> |
net: lan966x: Add basic XDP support Introduce basic XDP support to lan966x driver. Currently the driver supports only the actions XDP_PASS, XDP_DROP and XDP_ABORTED. Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
|