Messages in this thread | | | Date | Wed, 26 Feb 2014 00:20:04 +0200 | Subject | Re: [PATCH] mlx4: Use GFP_NOFS calls during the ipoib TX path when creating the QP | From | Or Gerlitz <> |
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On Wed, Feb 26, 2014 at 12:11 AM, Jiri Kosina <jkosina@suse.cz> wrote: > On Tue, 25 Feb 2014, Or Gerlitz wrote:
>> And what happens if you use IPoIB datagram mode, is/why the patch is >> needed there?
> I admittedly am no infiniband expert, but my understanding is that in > principle Connected/Datagram mode is about MTU and checksum offloading,
yes, the differences between the mode relate to these aspects, however
> but the TX path is the same. Please correct me if I am wrong.
no, note that your patch only touched drivers/infiniband/ulp/ipoib/ipoib_cm.c which is basically compiled out if you set CONFIG_INFINIBAND_IPOIB_CM, so surely the TX path for the datagram vs. connected modes are different.
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