Re: [PATCH rdma-next 0/8] RDMA/mana_ib: Handle service reset for RDMA resources

From: Leon Romanovsky

Date: Sat Mar 07 2026 - 12:38:42 EST


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