linux-kernel - [PATCH v6 0/4] virtio-net: disable delayed refill when pausing rx

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Message-ID: <20250425071018.36078-1-minhquangbui99@gmail.com>
Date: Fri, 25 Apr 2025 14:10:14 +0700
From: Bui Quang Minh <minhquangbui99@...il.com>
To: virtualization@...ts.linux.dev
Cc: "Michael S. Tsirkin" <mst@...hat.com>,
	Jason Wang <jasowang@...hat.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	John Fastabend <john.fastabend@...il.com>,
	Eugenio Pérez <eperezma@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	bpf@...r.kernel.org,
	Bui Quang Minh <minhquangbui99@...il.com>
Subject: [PATCH v6 0/4] virtio-net: disable delayed refill when pausing rx

Hi everyone,

This only includes the selftest for virtio-net deadlock bug. The fix
commit has been applied already.

Link: https://lore.kernel.org/virtualization/174537302875.2111809.8543884098526067319.git-patchwork-notify@kernel.org/T/

Version 6 changes:
- Rebase on net-next and resolve conflicts
- Move the retry logic to xdp_helper

Version 5 changes:
- Refactor the selftest

Version 4 changes:
- Add force zerocopy mode to xdp_helper
- Make virtio_net selftest use force zerocopy mode
- Move virtio_net selftest to drivers/net/hw

Version 3 changes:
- Patch 1: refactor to avoid code duplication

Version 2 changes:
- Add selftest for deadlock scenario

Thanks,
Quang Minh.

Bui Quang Minh (4):
  selftests: net: move xdp_helper to net/lib
  selftests: net: add flag to force zerocopy mode in xdp_helper
  selftests: net: retry when bind returns EBUSY in xdp_helper
  selftests: net: add a virtio_net deadlock selftest

 .../testing/selftests/drivers/net/.gitignore  |  1 -
 tools/testing/selftests/drivers/net/Makefile  |  1 -
 .../testing/selftests/drivers/net/hw/Makefile |  1 +
 .../selftests/drivers/net/hw/xsk_reconfig.py  | 60 +++++++++++++++++++
 .../selftests/drivers/net/napi_id_helper.c    |  2 +-
 tools/testing/selftests/drivers/net/queues.py |  4 +-
 tools/testing/selftests/net/lib/.gitignore    |  1 +
 tools/testing/selftests/net/lib/Makefile      |  1 +
 .../selftests/{drivers/net => net/lib}/ksft.h |  0
 .../{drivers/net => net/lib}/xdp_helper.c     | 39 +++++++++---
 10 files changed, 98 insertions(+), 12 deletions(-)
 create mode 100755 tools/testing/selftests/drivers/net/hw/xsk_reconfig.py
 rename tools/testing/selftests/{drivers/net => net/lib}/ksft.h (100%)
 rename tools/testing/selftests/{drivers/net => net/lib}/xdp_helper.c (78%)

-- 
2.43.0