On Wed, Jun 13, 2018 at 10:22:01AM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
>
> Hi,
>
> New series from Parav and Jason:
> Now that we have stable pointers to the gid_attrs in the GID table, we can
> replace lookups in the cache with pointer de-references throughout the
> stack from the core to the drivers.
>
> HW objects that touch gid entires will hold a reference to the gid_attrs
> for their lifetime. In RoCE mode this prevents reuse of the GID index
> while there is an active user, which prevents a security/functional issue
> around re-assigned GID table entries.
>
> After this series there is only one driver call remaining to the GID cache
> (in RXE receive) and driver use of the grh.sgid_index has been substantially
> reduced.
>
> Thanks
>
> Jason Gunthorpe (3):
> IB/core: Add a sgid_attr pointer to struct rdma_ah_attr
> IB{cm, core}: Introduce and use ah_attr copy, move, replace APIs
> RDMA: Hold the sgid_attr inside the struct ib_ah/qp
>
> Parav Pandit (5):
> IB: Ensure that all rdma_ah_attr's are zero initialized
> IB/core: Tidy ib_resolve_eth_dmac
> RDMA: Convert drivers to use sgid_attr instead of sgid_index
> IB/mlx4: Use GID attribute from ah attribute
> RDMA: Convert drivers to use the AH's sgid_attr in post_wr paths
Applied to for-next, thanks
Jason
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