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From: <Patrick.Mclean@sony.com>
To: <stable@vger.kernel.org>
Cc: <regressions@lists.linux.dev>, <ayal@nvidia.com>,
	<saeedm@nvidia.com>, <netdev@vger.kernel.org>,
	<leonro@nvidia.com>, <Aaron.U'ren@sony.com>,
	<Russell.Brown@sony.com>, <Victor.Payno@sony.com>
Subject: mlx5_core 5.10 stable series regression starting at 5.10.65
Date: Mon, 20 Sep 2021 20:22:44 +0000	[thread overview]
Message-ID: <BY5PR13MB3604D3031E984CA34A57B7C9EEA09@BY5PR13MB3604.namprd13.prod.outlook.com> (raw)

In 5.10 stable kernels since 5.10.65 certain mlx5 cards are no longer usable (relevant dmesg logs and lspci output are pasted below).

Bisecting the problem tracks the problem down to this commit:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=fe6322774ca28669868a7e231e173e09f7422118

Here is how lscpi -nn identifies the cards:
41:00.0 Ethernet controller [0200]: Mellanox Technologies MT27800 Family [ConnectX-5] [15b3:1017]
41:00.1 Ethernet controller [0200]: Mellanox Technologies MT27800 Family [ConnectX-5] [15b3:1017]

Here are the relevant dmesg logs:
[   13.409473] mlx5_core 0000:41:00.0: firmware version: 16.31.1014
[   13.415944] mlx5_core 0000:41:00.0: 126.016 Gb/s available PCIe bandwidth (8.0 GT/s PCIe x16 link)
[   13.707425] mlx5_core 0000:41:00.0: Rate limit: 127 rates are supported, range: 0Mbps to 24414Mbps
[   13.718221] mlx5_core 0000:41:00.0: E-Switch: Total vports 2, per vport: max uc(128) max mc(2048)
[   13.740607] mlx5_core 0000:41:00.0: Port module event: module 0, Cable plugged
[   13.759857] mlx5_core 0000:41:00.0: mlx5_pcie_event:294:(pid 586): PCIe slot advertised sufficient power (75W).
[   17.986973] mlx5_core 0000:41:00.0: E-Switch: cleanup
[   18.686204] mlx5_core 0000:41:00.0: init_one:1371:(pid 803): mlx5_load_one failed with error code -22
[   18.701352] mlx5_core: probe of 0000:41:00.0 failed with error -22
[   18.727364] mlx5_core 0000:41:00.1: firmware version: 16.31.1014
[   18.743853] mlx5_core 0000:41:00.1: 126.016 Gb/s available PCIe bandwidth (8.0 GT/s PCIe x16 link)
[   19.015349] mlx5_core 0000:41:00.1: Rate limit: 127 rates are supported, range: 0Mbps to 24414Mbps
[   19.025157] mlx5_core 0000:41:00.1: E-Switch: Total vports 2, per vport: max uc(128) max mc(2048)
[   19.053569] mlx5_core 0000:41:00.1: Port module event: module 1, Cable unplugged
[   19.062093] mlx5_core 0000:41:00.1: mlx5_pcie_event:294:(pid 591): PCIe slot advertised sufficient power (75W).
[   22.826932] mlx5_core 0000:41:00.1: E-Switch: cleanup
[   23.544747] mlx5_core 0000:41:00.1: init_one:1371:(pid 803): mlx5_load_one failed with error code -22
[   23.555071] mlx5_core: probe of 0000:41:00.1 failed with error -22

Please let me know if I can provide any further information.

             reply	other threads:[~2021-09-20 20:32 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-20 20:22 Patrick.Mclean [this message]
2021-09-21  6:31 ` Greg KH
2021-09-21 22:22   ` Patrick.Mclean
2021-09-22  6:21     ` Leon Romanovsky
2021-09-23 11:04       ` Greg KH

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