[Bug 2154523] Re: [26.04] BCM57708 (Thor3) Hangs on Linux 7.0

** Tags added: kernel-daily-bug -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2154523 Title: [26.04] BCM57708 (Thor3) Hangs on Linux 7.0 Status in linux package in Ubuntu: New Bug description: Broadcom BCM57708 Thor Ultra (Thor3) drivers are present in Linux 7.0 kernel released with Ubuntu Resolute (26.04 LTS), however they hang on load: [ 1.496333] bng_en 0000:01:00.0: Broadcom BCM57708 ThorUltra 50Gb/100Gb/200Gb/400Gb/800Gb Ethernet found at mem 18018010000 [ 1.496341] bng_en 0000:01:00.0: 1024.000 Gb/s available PCIe bandwidth (64.0 GT/s PCIe x16 link), in Flit mode [ 1.498568] bng_en 0000:01:00.0: Default HWRM commands max timeout increased to 60 seconds [ 1.508703] bng_en 0000:01:00.0: Failed to allocate ctx mem rc: -22 [ 1.514563] bng_en 0000:01:00.0: Failed to register with firmware rc = -22 [ 1.514712] bng_en 0000:01:00.0: probe with driver bng_en failed with error -22 [ 1.525193] bng_en 0000:01:00.1: Broadcom BCM57708 ThorUltra 50Gb/100Gb/200Gb/400Gb/800Gb Ethernet found at mem 18018000000 [ 1.525199] bng_en 0000:01:00.1: 1024.000 Gb/s available PCIe bandwidth (64.0 GT/s PCIe x16 link), in Flit mode [ 1.527128] bng_en 0000:01:00.1: Default HWRM commands max timeout increased to 60 seconds [ 1.536024] bng_en 0000:01:00.1: Failed to allocate ctx mem rc: -22 [ 1.541309] bng_en 0000:01:00.1: Failed to register with firmware rc = -22 [ 1.546011] bng_en 0000:01:00.1: probe with driver bng_en failed with error -22 The issue appears to be already fixed upstream in the 7.1 tree via the following commits (1),(2). We need to include this fix in the Ubuntu 2.6.04 LTS kernel to properly enable these devices. I tested and both of them do apply to the 7.0 in-tree drivers. Thank you, Alan (1) https://github.com/torvalds/linux/commit/c6b34add67a5402f53359580956b5c318965a893.patch (2) https://github.com/torvalds/linux/commit/70d7c905a07ae8415b955569620bf2bf77423553.patch To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2154523/+subscriptions