Date: Sat, 16 Apr 2016 21:59:27 +0100 From: Justin Clift <justin@postgresql.org> To: Meny Yossefi <menyy@mellanox.com> Cc: "freebsd-infiniband@freebsd.org" <freebsd-infiniband@freebsd.org>, Hans Petter Selasky <hanss@mellanox.com>, Yuval Bason <yuvalba@mellanox.com> Subject: Re: How to force IB cards to come up in IB mode? Message-ID: <037CBF0B-10E4-47FB-97A1-B281E8BE5151@postgresql.org> In-Reply-To: <DB5PR05MB1765AAD188E07C726CE5C005C3690@DB5PR05MB1765.eurprd05.prod.outlook.com> References: <9C08621D-AAE9-42D0-8079-716CDD9BC5E0@postgresql.org> <223ee8f3dd5240779d39bf78c383c50c@AMSPR05MB0580.eurprd05.prod.outlook.com> <DB5PR05MB1765AAD188E07C726CE5C005C3690@DB5PR05MB1765.eurprd05.prod.outlook.com>
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On 16 Apr 2016, at 15:55, Meny Yossefi <menyy@mellanox.com> wrote: > Hi Justin, > > > It seems as the pre-boot configuration didn't work. > > loader.conf doesn't work on all sysctl params AFAIK. > > > Is it a pre-boot only issue? > > What is the current sysctl output for those ports? > > Have you tried switching to IB after system was loaded? > > > If I remember correctly, the driver was set for Eth configuration by default. > > Of course, this is reversible.. Looking at the 10.3 code, this seems to be the port selection clause: https://github.com/freebsd/freebsd/blob/master/sys/ofed/drivers/net/mlx4/main.c#L706-L736 In the comments inside that clause, it says: "If IB and ETH are supported, we set the port type according to user selection of port type; if there is no user selection, take the FW hint" https://github.com/freebsd/freebsd/blob/master/sys/ofed/drivers/net/mlx4/main.c#L716-L718 There is no man page for mlx4, so I'm a bit stumped for how to select the port type for "user selection" as mentioned there. Any hints? :) (And sure, things could be forced in the code with something like: dev->caps.port_type[i] = MLX4_PORT_TYPE_IB; ... for each of the ports. But that's a temporary only solution and we probably find the proper one instead. ;D Regards and best wishes, Justin Clift -- "My grandfather once told me that there are two kinds of people: those who work and those who take the credit. He told me to try to be in the first group; there was less competition there." - Indira Gandhihome | help
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