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| author |   Eli Cohen <eli@dev.mellanox.co.il> | 2014-01-14 17:45:12 +0200 |
|---|---|---|
| committer |   Roland Dreier <roland@purestorage.com> | 2014-01-14 13:54:23 -0800 |
| commit | c1be5232d21de68f46637e617225b9b7c586451a (patch) | |
| tree | ca552be072b1ec232a4ca7b1d3154fd6b5f4946f /include/linux/mlx5/device.h | |
| parent | mlx5_core: Remove dead code (diff) | |
| download | linux-dev-c1be5232d21de68f46637e617225b9b7c586451a.tar.xz linux-dev-c1be5232d21de68f46637e617225b9b7c586451a.zip | |
IB/mlx5: Fix micro UAR allocator
The micro UAR (uuar) allocator had a bug which resulted from the fact
that in each UAR we only have two micro UARs avaialable, those at
index 0 and 1. This patch defines iterators to aid in traversing the
list of available micro UARs when allocating a uuar.
In addition, change the logic in create_user_qp() so that if high
class allocation fails (high class means lower latency), we revert to
medium class and not to the low class.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'include/linux/mlx5/device.h')
| -rw-r--r-- | include/linux/mlx5/device.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index da78875807fc..2c1c62e339ca 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -104,9 +104,10 @@ enum { }; enum { - MLX5_BF_REGS_PER_PAGE = 4, - MLX5_MAX_UAR_PAGES = 1 << 8, - MLX5_MAX_UUARS = MLX5_MAX_UAR_PAGES * MLX5_BF_REGS_PER_PAGE, + MLX5_BF_REGS_PER_PAGE = 4, + MLX5_MAX_UAR_PAGES = 1 << 8, + MLX5_NON_FP_BF_REGS_PER_PAGE = 2, + MLX5_MAX_UUARS = MLX5_MAX_UAR_PAGES * MLX5_NON_FP_BF_REGS_PER_PAGE, }; enum { |