Re: [PATCH] IB/hfi1: Allow for non-double word multiple message sizes for user SDMA
From: ira.weiny <hidden>
Date: 2016-07-28 16:35:37
On Thu, Jul 28, 2016 at 10:58:40AM +0300, Leon Romanovsky wrote:
On Wed, Jul 27, 2016 at 09:08:42PM -0400, ira.weiny wrote:quoted
The driver pads non-double word multiple message sizes but it doesn't account for this padding when the packet length is calculated. Also, the data length is miscalculated for message sizes less than 4 bytes due to the bit representation in LRH. And there's a check for non-double word multiple message sizes that prevents these messages from being sent. This patch fixes length miscalculations and enables the functionality to send non-double word multiple message sizes. Reviewed-by: Harish Chegondi <redacted> Signed-off-by: Sebastian Sanchez <redacted> Signed-off-by: Ira Weiny <redacted> ---Ira, Is this sizeof(u32) really necessary? It is always the same 4 bytes in all architectures.
Yes, using the magic number 4 would work but I don't think it really matters either way. Ira -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html