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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Aquantia PHY in OCSGMII mode? 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X-MS-Exchange-CrossPremises-SCL: 1 X-MS-Exchange-CrossPremises-Processed-By-Journaling: Journal Agent X-OrganizationHeadersPreserved: GVXP192MB1781.EURP192.PROD.OUTLOOK.COM X-Proofpoint-GUID: OkKgKVLjj8qlLRikxIOG4WJ0gNvlrI92 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODAxMDA5MCBTYWx0ZWRfXyUN6rf/Cbww1 GAaBrHlHarpRNx7vI+crABLaDwpRvOQURLs6DXSZkaqVKhn8LVigea72fVXTMa6S3cs6VgPmwxw AgsOmIWrKk/nQIfQG3K24Kgtbeg74HYFQ+K6v2gcT2z5IpPDTYAFB50cBNC4OA6bt+dRGssVWtA cEc0CHaW4dE5qnMqbvj/5r1hv+P0RCIvUvL89Wq+fEbppfVDPDTcWOhzR7k/TGcO1vEx10+ghBv +vvB0cfmLfsDHa/bPtBI8KsD4M5sea+L9jW+2E76BLmYyDxL0yWwA5Otgcr1dsFOuYmdCGFkxxm JTtRFfU7QWliiUKtZ1vstNOEG6bkhYQOYn6aHqSSDFi7VsntyIbuC62uXet/Y4= X-Authority-Analysis: v=2.4 cv=IaeHWXqa c=1 sm=1 tr=0 ts=688cadbe cx=c_pps a=xx55tk8hyb47AkJjldnMnA==:117 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=wKuvFiaSGQ0qltdbU6+NXLB8nM8=:19 a=Ol13hO9ccFRV9qXi2t6ftBPywas=:19 a=xqWC_Br6kY4A:10 a=kj9zAlcOel0A:10 a=2OwXVqhp2XgA:10 a=8gLI3H-aZtYA:10 a=G9Su_PKzgMt-2-K_yNIA:9 a=CjuIK1q_8ugA:10 X-Proofpoint-ORIG-GUID: OkKgKVLjj8qlLRikxIOG4WJ0gNvlrI92 Am Fri, Aug 01, 2025 at 12:58:23PM +0100 schrieb Russell King (Oracle): > On Fri, Aug 01, 2025 at 01:54:29PM +0200, Alexander Wilhelm wrote: > > Am Fri, Aug 01, 2025 at 02:01:06PM +0300 schrieb Vladimir Oltean: > > > On Thu, Jul 31, 2025 at 08:26:43PM +0100, Russell King (Oracle) wrote: > > > > and this works. So... we could actually reconfigure the PHY independent > > > > of what was programmed into the firmware. > > > > > > It does work indeed, the trouble will be adding this code to the common > > > mainline kernel driver and then watching various boards break after their > > > known-good firmware provisioning was overwritten, from a source of unknown > > > applicability to their system. > > > > You're right. I've now selected a firmware that uses a different provisioning > > table, which already configures the PHY for 2500BASE-X with Flow Control. > > According to the documentation, it should support all modes: 10M, 100M, 1G, and > > 2.5G. > > > > It seems the issue lies with the MAC, as it doesn't appear to handle the > > configured PHY_INTERFACE_MODE_2500BASEX correctly. I'm currently investigating > > this further. > > Which MAC driver, and is it using phylink? If I understand it correclty, then yes. It is an Freescale FMAN driver that is called through phylink callbacks like the following: static const struct phylink_mac_ops memac_mac_ops = { .validate = memac_validate, .mac_select_pcs = memac_select_pcs, .mac_prepare = memac_prepare, .mac_config = memac_mac_config, .mac_link_up = memac_link_up, .mac_link_down = memac_link_down, }; Best regards Alexander Wilhelm