Majd, how soon? I have plan to work patch on next week, i looks copy-paste of pointed Leon with some minor changes and applied to the different buffer. > 21 июня 2018 г., в 14:20, Majd Dibbiny <majd@xxxxxxxxxxxx> написал(а): > > >> On Jun 21, 2018, at 1:14 PM, Leon Romanovsky <leon@xxxxxxxxxx> wrote: >> >>> On Wed, Jun 20, 2018 at 10:48:16AM +0300, Alexey Lyashkov wrote: >>> Hi All, >>> >>> while a lustre testing I have seen an very high ordered allocations was done by mlx5 driver. >>> Similar bug reported agaist mlx4 driver in Lustre ticket https://jira.whamcloud.com/browse/LU-10736. >>> As i see both fails related to the SGE array buffer allocation (sorry, i don’t know a good terms for it). >>> But it uses a continues space, instead of fragmented. >>> I have several questions about it >>> What a reason for it? why don’t use a fragmented allocation and merge it logically as before for mlx4? >> >> I don't know the reasons for it, but we are working to avoid such large >> allocations, for example see commit 88ca8be0037 "IB/mlx5: Implement fragmented >> completion queue (CQ)" > Soon we are going to do it for QPs of mlx5 and mlx4 as well. >> >> Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
