Merge branch 'mlx5e-xdp-extend'
Tariq Toukan says:
====================
net/mlx5e: Extend XDP multi-buffer capabilities
This series extends the XDP multi-buffer support in the mlx5e driver.
Patchset breakdown:
- Infrastructural changes and preparations.
- Add XDP multi-buffer support for XDP redirect-in.
- Use TX MPWQE (multi-packet WQE) HW feature for non-linear
single-segmented XDP frames.
- Add XDP multi-buffer support for striding RQ.
In Striding RQ, we overcome the lack of headroom and tailroom between
the RQ strides by allocating a side page per packet and using it for the
xdp_buff descriptor. We structure the xdp_buff so that it contains
nothing in the linear part, and the whole packet resides in the
fragments.
Performance highlight:
Packet rate test, 64 bytes, 32 channels, MTU 9000 bytes.
CPU: Intel(R) Xeon(R) Platinum 8380 CPU @ 2.30GHz.
NIC: ConnectX-6 Dx, at 100 Gbps.
+----------+-------------+-------------+---------+
| Test | Legacy RQ | Striding RQ | Speedup |
+----------+-------------+-------------+---------+
| XDP_DROP | 101,615,544 | 117,191,020 | +15% |
+----------+-------------+-------------+---------+
| XDP_TX | 95,608,169 | 117,043,422 | +22% |
+----------+-------------+-------------+---------+
Series generated against net commit:
e61caf04b9f8 Merge branch 'page_pool-allow-caching-from-safely-localized-napi'
I'm submitting this directly as Saeed is traveling.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>