From: Florian Fainelli <f.fainelli@gmail.com>
To: Lukasz Majewski <lukma@denx.de>,
Tristram.Ha@microchip.com, Eric Dumazet <edumazet@google.com>,
Andrew Lunn <andrew@lunn.ch>,
davem@davemloft.net, Woojung Huh <woojung.huh@microchip.com>,
Vladimir Oltean <olteanv@gmail.com>,
Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
UNGLinuxDriver@microchip.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5 net-next 3/5] net: dsa: tag_ksz: Extend ksz9477_xmit() for HSR frame duplication
Date: Thu, 21 Sep 2023 10:50:33 -0700 [thread overview]
Message-ID: <ab3076e2-5f65-e517-17f9-00249aabe51f@gmail.com> (raw)
In-Reply-To: <20230920114343.1979843-4-lukma@denx.de>
On 9/20/23 04:43, Lukasz Majewski wrote:
> The KSZ9477 has support for HSR (High-Availability Seamless Redundancy).
> One of its offloading (i.e. performed in the switch IC hardware) features
> is to duplicate received frame to both HSR aware switch ports.
>
> To achieve this goal - the tail TAG needs to be modified. To be more
> specific, both ports must be marked as destination (egress) ones.
>
> The NETIF_F_HW_HSR_DUP flag indicates that the device supports HSR and
> assures (in HSR core code) that frame is sent only once from HOST to
> switch with tail tag indicating both ports.
>
> Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
--
Florian
next prev parent reply other threads:[~2023-09-21 20:26 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-20 11:43 [PATCH v5 net-next 0/5] net: dsa: hsr: Enable HSR HW offloading for KSZ9477 Lukasz Majewski
2023-09-20 11:43 ` [PATCH v5 net-next 1/5] net: dsa: propagate extack to ds->ops->port_hsr_join() Lukasz Majewski
2023-09-21 17:47 ` Florian Fainelli
2023-09-20 11:43 ` [PATCH v5 net-next 2/5] net: dsa: notify drivers of MAC address changes on user ports Lukasz Majewski
2023-09-21 17:49 ` Florian Fainelli
2023-09-20 11:43 ` [PATCH v5 net-next 3/5] net: dsa: tag_ksz: Extend ksz9477_xmit() for HSR frame duplication Lukasz Majewski
2023-09-21 17:50 ` Florian Fainelli [this message]
2023-09-21 19:12 ` Vladimir Oltean
2023-09-20 11:43 ` [PATCH v5 net-next 4/5] net: dsa: microchip: move REG_SW_MAC_ADDR to dev->info->regs[] Lukasz Majewski
2023-09-21 17:50 ` Florian Fainelli
2023-09-20 11:43 ` [PATCH v5 net-next 5/5] net: dsa: microchip: Enable HSR offloading for KSZ9477 Lukasz Majewski
2023-09-21 17:52 ` Florian Fainelli
2023-09-21 19:32 ` Vladimir Oltean
2023-09-22 11:29 ` Lukasz Majewski
2023-09-22 11:43 ` Vladimir Oltean
2023-09-21 19:23 ` [PATCH v5 net-next 0/5] net: dsa: hsr: Enable HSR HW " Vladimir Oltean
2023-09-22 11:18 ` Lukasz Majewski
2023-09-22 11:31 ` Vladimir Oltean
2023-09-22 11:47 ` Lukasz Majewski
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