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| author |   Yamin Friedman <yaminf@mellanox.com> | 2020-05-27 11:34:52 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2020-05-29 15:40:51 -0300 |
| commit | 3446cbd2d523fdaf37f3772082071d1154c419d9 (patch) | |
| tree | 205c3b7700d47311a9ebd1708dfeb039fbcfce3d /include/rdma | |
| parent | RDMA/core: Fix several reference count leaks. (diff) | |
| download | linux-dev-3446cbd2d523fdaf37f3772082071d1154c419d9.tar.xz linux-dev-3446cbd2d523fdaf37f3772082071d1154c419d9.zip | |
RDMA/core: Add protection for shared CQs used by ULPs
A pre-step for adding shared CQs. Add the infrastructure to prevent shared
CQ users from altering the CQ configurations. For now all cqs are marked
as private (non-shared). The core driver should use the new force
functions to perform resize/destroy/moderation changes that are not
allowed for users of shared CQs.
Link: https://lore.kernel.org/r/1590568495-101621-2-git-send-email-yaminf@mellanox.com
Signed-off-by: Yamin Friedman <yaminf@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include/rdma')
| -rw-r--r-- | include/rdma/ib_verbs.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 94533ae16697..cc515025cbdb 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1613,7 +1613,8 @@ struct ib_cq { /* updated only by trace points */ ktime_t timestamp; - bool interrupt; + u8 interrupt:1; + u8 shared:1; /* * Implementation details of the RDMA core, don't use in drivers: @@ -3909,6 +3910,8 @@ static inline struct ib_cq *ib_alloc_cq_any(struct ib_device *dev, * ib_free_cq_user - Free kernel/user CQ * @cq: The CQ to free * @udata: Valid user data or NULL for kernel objects + * + * NOTE: This function shouldn't be called on shared CQs. */ void ib_free_cq_user(struct ib_cq *cq, struct ib_udata *udata); |