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Date: Tue, 20 Feb 2024 22:03:37 +0100
From: Toke Høiland-Jørgensen <toke@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: Toke Høiland-Jørgensen <toke@...hat.com>,
bpf@...r.kernel.org
Subject: [PATCH net-next v2 0/4] Change BPF_TEST_RUN use the system page pool for live XDP frames
Now that we have a system-wide page pool, we can use that for the live
frame mode of BPF_TEST_RUN (used by the XDP traffic generator), and
avoid the cost of creating a separate page pool instance for each
syscall invocation. See the individual patches for more details.
This series targets net-next because it depends on this series of
Lorenzo's, that adds a global system page pool:
https://lore.kernel.org/r/cover.1707729884.git.lorenzo@kernel.org
Changelog:
v2:
- Change the cookie that marks the page for recycling to be a 128-bit
value (Paolo)
- Add a patch that removes the init_callback parameter from page
pool (Olek)
- Carry forward review tags from v1
Toke Høiland-Jørgensen (4):
net: Register system page pool as an XDP memory model
bpf: test_run: Use system page pool for XDP live frame mode
bpf: test_run: Fix cacheline alignment of live XDP frame data
structures
page pool: Remove init_callback parameter
include/linux/netdevice.h | 1 +
include/net/page_pool/types.h | 4 -
net/bpf/test_run.c | 143 +++++++++++++++++-----------------
net/core/dev.c | 13 +++-
net/core/page_pool.c | 4 -
5 files changed, 86 insertions(+), 79 deletions(-)
--
2.43.0
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