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([2620:10d:c091:500::1:a491]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-439899da8dbsm19894484f8f.18.2026.02.26.06.11.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 26 Feb 2026 06:11:50 -0800 (PST) Message-ID: Date: Thu, 26 Feb 2026 09:11:47 -0500 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [net-next, v2 1/2] psp: Support for transmit on logical device when the underlying transport device supports PSP. To: Kiran Kella Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, willemb@google.com, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, jayakrishnan.udayavarma@broadcom.com, ajit.khaparde@broadcom.com, akhilesh.samineni@broadcom.com References: <20260223191154.2800616-1-kiran.kella@broadcom.com> <20260223191154.2800616-2-kiran.kella@broadcom.com> <0a850f65-be67-4a66-941f-17d8440e987b@gmail.com> Content-Language: en-US From: Daniel Zahka In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 2/26/26 6:46 AM, Kiran Kella wrote: > On Wed, Feb 25, 2026 at 2:28 AM Daniel Zahka wrote: >> The lack of support for netns is a bit of a gap for this feature. It may >> make sense to see if what was posted in >> https://lore.kernel.org/netdev/20260224002410.1553838-1-weibunny@fb.com/ >> is sufficient for your use case, as it handles cases where upper devices >> are in a different netns from psd->main_netdev. > Thanks. Went through the changes in > https://lore.kernel.org/netdev/20260224002410.1553838-1-weibunny@fb.com/ > It is sufficient for my use case too, although it specifically > addresses the cross-netns virtual devices use case. > But the same net-ns stacked devices like VLANs can be handled with > this patch implicitly, without user intervention through dev-assoc. > I think both approaches can co-exist without conflict. I agree they can co-exist, and automatically propagating psp devices is useful. I was just pointing out that support for upper devices will eventually need to deal with netns, because when I looked at this patch things like ipvlan and macvlan came to mind.