linux-kernel - Re: mlx4: "failed to allocate default counter port 1"

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Date:	Tue, 30 Jun 2015 15:19:42 +0200 (CEST)
From:	Sebastian Ott <sebott@...ux.vnet.ibm.com>
To:	Or Gerlitz <gerlitz.or@...il.com>
cc:	Eran Ben Elisha <eranbe@...lanox.com>,
	Or Gerlitz <ogerlitz@...lanox.com>,
	Jack Morgenstein <jackm@....mellanox.co.il>,
	Hadar Hen Zion <hadarh@...lanox.com>,
	Linux Netdev List <netdev@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: mlx4: "failed to allocate default counter port 1"

On Tue, 30 Jun 2015, Or Gerlitz wrote:
> On Tue, Jun 30, 2015 at 1:45 PM, Sebastian Ott
> <sebott@...ux.vnet.ibm.com> wrote:
> > after the latest mellanox update the mlx4 driver fails to probe a VF:
> > [   88.909562] mlx4_core 0000:00:00.0: mlx4_allocate_default_counters: failed to allocate default counter port 1 err -22
> > [   88.909564] mlx4_core 0000:00:00.0: Failed to allocate default counters, aborting
> > [   88.961735] mlx4_core: probe of 0000:00:00.0 failed with error -22
> >
> > PFs still work. See below for more dmesg output - I also added a line of
> > debug output...maybe this helps.
> 
> Can you please send your "lspci | grep nox" listing? also what

0000:00:00.0 Ethernet controller: Mellanox Technologies MT27500 Family [ConnectX-3 Virtual Function]

> Firmware version you have there? e.g when you probe the PF with
> mlx4_core debug_level=1 can you sens us the lines that follow the PF
> probe, e.g as here + dump of all caps as you did for the VF

I have access to 2 machines and run a guest instance on both machines:
* on one the guest has acccess to a PF, but VF enablement is disallowed
* on the other the hypervisor controls the PF and the guests have only
  access to the VFs - so I cannot say much about the PF here

At least I found out the FW version - it's: 2.33.5100

Regards,
Sebastian

> 
>   952.367911] mlx4_core: Mellanox ConnectX core driver v2.2-1 (Feb, 2014)
> [  952.374606] mlx4_core: Initializing 0000:06:00.0
> [  953.384332] mlx4_core 0000:06:00.0: FW version 2.34.5000 (cmd intf
> rev 3), max commands 16
> [...]
> 
> Also send us the output of "dmesg | grep -i counter" after such verbose load.
> 
> thanks,
> 
> Or.
> 
> 

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