> On Thu, 19 Feb 2026 17:08:51 -0800 > [email protected] wrote: > > > From: Long Li <[email protected]> > > > > This series fixes multi-process support for DPDK drivers used on Azure > > VMs with Accelerated Networking (AN). When AN is toggled, the VF > > device is hot-removed and hot-added, which can crash secondary > > processes due to stale fast-path pointers and race conditions. > > > > Patches 1-3 fix the netvsc PMD: > > - Prevent secondary from calling unsupported promiscuous ops > > - Fix rwlock misuse and race conditions on VF add/remove events > > - Add multi-process VF device removal support via IPC > > > > Patches 4-5 fix resource leaks: > > - MANA PD resource leak on device close > > - netvsc devargs memory leak on hotplug > > > > Patches 6-8 fix a common bug across MANA, MLX5, and MLX4 drivers where > > the secondary process START_RXTX/STOP_RXTX IPC handlers update > > dev->rx_pkt_burst/tx_pkt_burst but do not update the process-local > > rte_eth_fp_ops[] array. Since rte_eth_rx_burst() uses rte_eth_fp_ops > > (not dev->rx_pkt_burst), the secondary retains stale queue data > > pointers after VF hot-add, causing a segfault. > > > > Long Li (8): > > net/netvsc: secondary ignore promiscuous enable/disable > > net/netvsc: fix race conditions on VF add/remove events > > net/netvsc: add multi-process VF device removal support > > net/mana: fix PD resource leak on device close > > net/netvsc: fix devargs memory leak on hotplug > > net/mana: fix fast-path ops setup in secondary process > > net/mlx5: fix fast-path ops setup in secondary process > > net/mlx4: fix fast-path ops setup in secondary process > > > > drivers/net/mana/mana.c | 14 ++ > > drivers/net/mana/mp.c | 6 + > > drivers/net/mlx4/mlx4_mp.c | 4 + > > drivers/net/mlx5/linux/mlx5_mp_os.c | 4 + > > drivers/net/netvsc/hn_ethdev.c | 288 +++++++++++++++++++++++++++- > > drivers/net/netvsc/hn_nvs.h | 5 + > > drivers/net/netvsc/hn_rxtx.c | 40 ++-- > > drivers/net/netvsc/hn_var.h | 1 + > > drivers/net/netvsc/hn_vf.c | 122 ++++++------ > > 9 files changed, 397 insertions(+), 87 deletions(-) > > > > I didn't see anything wrong, but AI review spotted some issues. > Address these and resubmit.
Thank you, I have sent v2. > > Prompt: Using AGENTS.md, do a deep dive patch review of this patchset to DPDK > VF support in Azure >
