linux-kernel - Re: [PATCH net-next] net: mana: Record doorbell physical address in PF mode

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Message-ID: <20250610153534.0011c952@kernel.org>
Date: Tue, 10 Jun 2025 15:35:34 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: longli@...uxonhyperv.com
Cc: longli@...rosoft.com, "K. Y. Srinivasan" <kys@...rosoft.com>, Haiyang
 Zhang <haiyangz@...rosoft.com>, Wei Liu <wei.liu@...nel.org>, Dexuan Cui
 <decui@...rosoft.com>, "David S. Miller" <davem@...emloft.net>, Eric
 Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, Shradha
 Gupta <shradhagupta@...ux.microsoft.com>, Simon Horman <horms@...nel.org>,
 Konstantin Taranov <kotaranov@...rosoft.com>, Souradeep Chakrabarti
 <schakrabarti@...ux.microsoft.com>, Erick Archer
 <erick.archer@...look.com>, linux-hyperv@...r.kernel.org,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-rdma@...r.kernel.org
Subject: Re: [PATCH net-next] net: mana: Record doorbell physical address in
 PF mode

On Mon,  9 Jun 2025 16:09:40 -0700 longli@...uxonhyperv.com wrote:
> From: Long Li <longli@...rosoft.com>
> 
> MANA supports RDMA in PF mode. The driver should record the doorbell
> physical address when in PF mode.

Could you explain in more detail what happens if it doesn't?
What user-visible improvement does this patch bring?
-- 
pw-bot: cr