From: Leon Romanovsky <leon@kernel.org>
To: Long Li <longli@microsoft.com>
Cc: Konstantin Taranov <kotaranov@microsoft.com>,
Jakub Kicinski <kuba@kernel.org>,
"David S . Miller" <davem@davemloft.net>,
Paolo Abeni <pabeni@redhat.com>,
Eric Dumazet <edumazet@google.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
Jason Gunthorpe <jgg@ziepe.ca>,
Haiyang Zhang <haiyangz@microsoft.com>,
"K . Y . Srinivasan" <kys@microsoft.com>,
Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
Simon Horman <horms@kernel.org>,
netdev@vger.kernel.org, linux-rdma@vger.kernel.org,
linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH rdma-next 0/8] RDMA/mana_ib: Handle service reset for RDMA resources
Date: Sat, 7 Mar 2026 19:38:14 +0200 [thread overview]
Message-ID: <20260307173814.GN12611@unreal> (raw)
In-Reply-To: <20260307014723.556523-1-longli@microsoft.com>
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
next prev parent reply other threads:[~2026-03-07 17:38 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-07 1:47 [PATCH rdma-next 0/8] RDMA/mana_ib: Handle service reset for RDMA resources Long Li
2026-03-07 1:47 ` [PATCH rdma-next 1/8] RDMA/mana_ib: Track ucontext per device Long Li
2026-03-07 1:47 ` [PATCH rdma-next 2/8] RDMA/mana_ib: Track PD per ucontext Long Li
2026-03-07 1:47 ` [PATCH rdma-next 3/8] RDMA/mana_ib: Track CQ " Long Li
2026-03-07 1:47 ` [PATCH rdma-next 4/8] RDMA/mana_ib: Track WQ " Long Li
2026-03-07 1:47 ` [PATCH rdma-next 5/8] RDMA/mana_ib: Track QP " Long Li
2026-03-07 1:47 ` [PATCH rdma-next 6/8] RDMA/mana_ib: Track MR " Long Li
2026-03-07 1:47 ` [PATCH rdma-next 7/8] RDMA/mana_ib: Notify service reset events to RDMA devices Long Li
2026-03-07 1:47 ` [PATCH rdma-next 8/8] RDMA/mana_ib: Skip firmware commands for invalidated handles Long Li
2026-03-07 17:38 ` Leon Romanovsky [this message]
2026-03-13 16:59 ` [PATCH rdma-next 0/8] RDMA/mana_ib: Handle service reset for RDMA resources Jason Gunthorpe
2026-03-16 20:08 ` Leon Romanovsky
2026-03-17 23:43 ` [EXTERNAL] " Long Li
2026-03-18 14:49 ` Leon Romanovsky
2026-03-21 0:49 ` Long Li
2026-04-10 15:49 ` Jason Gunthorpe
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