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Date: Sat, 22 Aug 2020 18:34:08 +0200 From: Andrew Lunn <andrew@...n.ch> To: Mickey Rachamim <mickeyr@...vell.com> Cc: Vadym Kochan <vadym.kochan@...ision.eu>, Jonathan McDowell <noodles@...th.li>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Jiri Pirko <jiri@...lanox.com>, Ido Schimmel <idosch@...lanox.com>, Oleksandr Mazur <oleksandr.mazur@...ision.eu>, Serhiy Boiko <serhiy.boiko@...ision.eu>, Serhiy Pshyk <serhiy.pshyk@...ision.eu>, Volodymyr Mytnyk <volodymyr.mytnyk@...ision.eu>, Taras Chornyi <taras.chornyi@...ision.eu>, Andrii Savka <andrii.savka@...ision.eu>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Andy Shevchenko <andy.shevchenko@...il.com> Subject: Re: [EXT] Re: [net-next v4 1/6] net: marvell: prestera: Add driver for Prestera family ASIC devices On Thu, Aug 20, 2020 at 10:00:21AM +0000, Mickey Rachamim wrote: > > ASIC device specific handling is serviced by the firmware, current > > driver's logic does not have PP specific code and relies on the FW > > ABI which is PP-generic, and it looks like this how it should work > > for boards with other ASICs, of course these boards should follow > > the Marvell's Switchdev board design. > > > All Marvell Prestera (DX) devices are all based on CPSS SDK. This is one SDK > and one build procedure that enables the Prestera driver to support all devices. > This unified support enables us (and our customers) to have one SW > implementation that will support variety of Prestera devices in same build/real-time > execution. > This approach also lead us with the implementation of the Prestera Switchdev drivers. > As having detailed familiarity (20Y) with Marvell Prestera old/current/future devices - > this approach will be kept strictly also on the future. So if i understand this correctly, the compatibility is not to Prestera, but to the firmware running on the Prestera? You want to express a compatibility to the ABI this firmware supports for the switchdev driver to use? Andrew
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