Date: Thu, 10 Nov 2016 16:20:20 +0000 From: Justin Clift <justin@postgresql.org> To: =?UTF-8?Q?Vin=C3=ADcius_Ferr=C3=A3o?= <ferrao@vmio.com.br> Cc: Meny Yossefi <menyy@mellanox.com>, Mark Bloch <markb@mellanox.com>, freebsd-infiniband@freebsd.org, Yuval Bason <yuvalba@mellanox.com>, Hans Petter Selasky <hanss@mellanox.com>, owner-freebsd-infiniband@freebsd.org Subject: Re: Device hints to put mlx4 on IB mode Message-ID: <20872ef5058b19aa9793734d82ef3396@postgresql.org> In-Reply-To: <D2621C85-E6C0-4A2B-8E6D-A32655DE5ABA@vmio.com.br> References: <B1D279B3-FD90-4997-84D2-605D7B4AE967@vmio.com.br> <fabc0ffda5574d729360cacca6650267@AM5PR0502MB2916.eurprd05.prod.outlook.com> <DB5PR05MB176572180CC2D5143694F8B7C3B80@DB5PR05MB1765.eurprd05.prod.outlook.com> <D2621C85-E6C0-4A2B-8E6D-A32655DE5ABA@vmio.com.br>
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On 2016-11-10 15:39, Vinícius Ferrão wrote: > Hello Meny, > > Thanks for the input. You’re recommending a driver code change to > start always on IB mode. This appears to be OK, but it's little > dangerous. I will need to keep the patches for the drivers/modules if > anything changes, right? > > Another question, changing the starting mode cannot be done in other > place? Like the Connect-X3 firmware? If not, since you’re on Mellanox > can we recommend a better approach from the upstream (mlx) or this > would be inviable? > > Thanks for your attention and time, it was really helpful. As a thought, are you using a config mgmt system? (eg Ansible, Salt, Puppet, etc) If so, that would be able to set this correctly (via sysctl) for all the nodes. :) + Justin
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