xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

IB/mlx5: Extend UAR stuff to support dynamic allocation

Browse Source 
This patch extends the alloc context flow to be prepared for working
with dynamic UAR allocations.

Currently upon alloc context there is some fix size of UARs that are
allocated (named 'static allocation') and there is no option to user
application to ask for more or control which UAR will be used by which
QP.

In this patch the driver prepares its data structures to manage both the
static and the dynamic allocations and let the user driver knows about
the max value of dynamic blue-flame registers that are allowed.

Downstream patches from this series will enable the dynamic allocation
and the association as part of QP creation.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Yishai Hadas
2017-12-24 16:31:34 +02:00
committed by Jason Gunthorpe
parent 4e2b53a5cb
commit 31a78a5a79
6 changed files with 39 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
include/linux/mlx5/driver.h
View File

@@ -230,6 +230,9 @@ struct mlx5_bfreg_info {
u32 ver;
bool lib_uar_4k;
u32 num_sys_pages;
u32 num_static_sys_pages;
u32 total_num_bfregs;
u32 num_dyn_bfregs;
};
struct mlx5_cmd_first {