IB/mlx4: Use vmalloc for WR buffers when needed

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There are several hits that WR buffer allocation(kmalloc) failed.
It failed at order 3 and/or 4 contigous pages allocation. At the same time
there are actually 100MB+ free memory but well fragmented.
So try vmalloc when kmalloc failed.

Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

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Wengang Wang 2015-10-08 13:27:04 +08:00 • committed by Doug Ledford

parent 73d4da7b9f

commit 0ef2f05c7e

2 changed files with 21 additions and 9 deletions

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19

drivers/infiniband/hw/mlx4/qp.c

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11

drivers/infiniband/hw/mlx4/srq.c

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