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Date: Sun, 26 Jan 2025 14:53:22 +0200
From: Leon Romanovsky <leon@kernel.org>
To: "Rita Han (she/her)" <rhan@purestorage.com>
Cc: linux-rdma@vger.kernel.org, Matthew Carlis <mattc@purestorage.com>
Subject: Re: Handling RDMA_CM_EVENT_DEVICE_REMOVAL in rdma-core
Message-ID: <20250126125322.GA74886@unreal>
References: <CAJGGzq9AhXns6y4i5LBY-g0eQY4JSV=3AG4Rt6-eMhNtE7fu4w@mail.gmail.com>
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On Fri, Jan 24, 2025 at 04:30:33PM -0800, Rita Han (she/her) wrote:
> Hi all,
> 
> I am currently working on validating PCIe DPC above Mellanox devices,
> and I've encountered issues where the device does not recover after
> injecting DPC above it with ENOMEM returned from rdma_create_qp. It
> seems that the rdma-core library does not support hotplugging or
> handle the removal of InfiniBand devices
> (RDMA_CM_EVENT_DEVICE_REMOVAL).

I was under impression that rdma-core supports it.
RDMA-CM disassociate support - https://github.com/linux-rdma/rdma-core/pull/750

Thanks