Re: [PATCH rdma-next 0/8] RDMA/mana_ib: Handle service reset for RDMA resources
From: Leon Romanovsky <leon@kernel.org>
Date: 2026-03-07 17:38:18
Also in:
linux-hyperv, linux-rdma, lkml
From: Leon Romanovsky <leon@kernel.org>
Date: 2026-03-07 17:38:18
Also in:
linux-hyperv, linux-rdma, lkml
On Fri, Mar 06, 2026 at 05:47:14PM -0800, Long Li wrote:
When the MANA hardware undergoes a service reset, the ETH auxiliary device (mana.eth) used by DPDK persists across the reset cycle — it is not removed and re-added like RC/UD/GSI QPs. This means userspace RDMA consumers such as DPDK have no way of knowing that firmware handles for their PD, CQ, WQ, QP and MR resources have become stale.
NAK to any of this. In case of hardware reset, mana_ib AUX device needs to be destroyed and recreated later. The same is applicable for mana.eth as well. Thanks