| From: |
| Meghana Malladi <m-malladi-AT-ti.com> |
| To: |
| <horms-AT-kernel.org>, <namcao-AT-linutronix.de>, <jacob.e.keller-AT-intel.com>, <m-malladi-AT-ti.com>, <christian.koenig-AT-amd.com>, <sumit.semwal-AT-linaro.org>, <sdf-AT-fomichev.me>, <john.fastabend-AT-gmail.com>, <hawk-AT-kernel.org>, <daniel-AT-iogearbox.net>, <ast-AT-kernel.org>, <pabeni-AT-redhat.com>, <kuba-AT-kernel.org>, <edumazet-AT-google.com>, <davem-AT-davemloft.net>, <andrew+netdev-AT-lunn.ch> |
| Subject: |
| [PATCH net-next v3 0/6] Add AF_XDP zero copy support |
| Date: |
| Tue, 14 Oct 2025 16:26:06 +0530 |
| Message-ID: |
| <20251014105613.2808674-1-m-malladi@ti.com> |
| Cc: |
| <linaro-mm-sig-AT-lists.linaro.org>, <dri-devel-AT-lists.freedesktop.org>, <linux-media-AT-vger.kernel.org>, <bpf-AT-vger.kernel.org>, <linux-kernel-AT-vger.kernel.org>, <netdev-AT-vger.kernel.org>, <linux-arm-kernel-AT-lists.infradead.org>, <srk-AT-ti.com>, Vignesh Raghavendra <vigneshr-AT-ti.com>, Roger Quadros <rogerq-AT-kernel.org>, <danishanwar-AT-ti.com> |
| Archive-link: |
| Article |
This series adds AF_XDP zero coppy support to icssg driver.
Tests were performed on AM64x-EVM with xdpsock application [1].
A clear improvement is seen Transmit (txonly) and receive (rxdrop)
for 64 byte packets. 1500 byte test seems to be limited by line
rate (1G link) so no improvement seen there in packet rate
Having some issue with l2fwd as the benchmarking numbers show 0
for 64 byte packets after forwading first batch packets and I am
currently looking into it.
AF_XDP performance using 64 byte packets in Kpps.
Benchmark: XDP-SKB XDP-Native XDP-Native(ZeroCopy)
rxdrop 259 462 645
txonly 350 354 760
l2fwd 178 240 0
AF_XDP performance using 1500 byte packets in Kpps.
Benchmark: XDP-SKB XDP-Native XDP-Native(ZeroCopy)
rxdrop 82 82 82
txonly 81 82 82
l2fwd 81 82 82
[1]: https://github.com/xdp-project/bpf-examples/tree/master/A...
v2: https://lore.kernel.org/all/20250901100227.1150567-1-m-ma...
Meghana Malladi (6):
net: ti: icssg-prueth: Add functions to create and destroy Rx/Tx
queues
net: ti: icssg-prueth: Add XSK pool helpers
net: ti: icssg-prueth: Add AF_XDP zero copy for TX
net: ti: icssg-prueth: Make emac_run_xdp function independent of page
net: ti: icssg-prueth: Add AF_XDP zero copy for RX
net: ti: icssg-prueth: Enable zero copy in XDP features
drivers/net/ethernet/ti/icssg/icssg_common.c | 470 ++++++++++++++++---
drivers/net/ethernet/ti/icssg/icssg_prueth.c | 394 +++++++++++++---
drivers/net/ethernet/ti/icssg/icssg_prueth.h | 25 +-
3 files changed, 740 insertions(+), 149 deletions(-)
base-commit: db1b6006668623b46a3f6b3fe6b5f030e4c60a42
--
2.43.0
