Re: [PATCH 1/1] pyverbs: fix speed_to_str(), to handle disabled links

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Hi John

On 12/21/2019 3:32 AM, John Hubbard wrote:

> For disabled links, the raw speed token is 0. However, speed_to_str()
> doesn't have that in the list. This leads to an assertion when running
> tests (test_query_port) when one link is down and other link(s) are up.
>
> Fix this by returning '0.0 Gbps' for the zero speed case.
>
> Cc: Noa Osherovich <noaos@xxxxxxxxxxxx>
> Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
> ---
>   pyverbs/device.pyx | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/pyverbs/device.pyx b/pyverbs/device.pyx
> index 33d133fd..cf7b75de 100755
> --- a/pyverbs/device.pyx
> +++ b/pyverbs/device.pyx
> @@ -923,8 +923,8 @@ def width_to_str(width):
>   
>   
>   def speed_to_str(speed):
> -    l = {1: '2.5 Gbps', 2: '5.0 Gbps', 4: '5.0 Gbps', 8: '10.0 Gbps',
> -         16: '14.0 Gbps', 32: '25.0 Gbps', 64: '50.0 Gbps'}
> +    l = {0: '0.0 Gbps', 1: '2.5 Gbps', 2: '5.0 Gbps', 4: '5.0 Gbps',
> +         8: '10.0 Gbps', 16: '14.0 Gbps', 32: '25.0 Gbps', 64: '50.0 Gbps'}
>       try:
>           return '{s} ({n})'.format(s=l[speed], n=speed)
>       except KeyError:

This seems OK to me. BTW, what's the reported active_width for disabled links?
Maybe width_to_str could use a similar fix.

Thanks,
Noa





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