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authorYamin Friedman <yaminf@mellanox.com>2020-05-27 11:34:52 +0300
committerJason Gunthorpe <jgg@mellanox.com>2020-05-29 15:40:51 -0300
commit3446cbd2d523fdaf37f3772082071d1154c419d9 (patch)
tree205c3b7700d47311a9ebd1708dfeb039fbcfce3d /include/rdma
parent0b8e125e213204508e1b3c4bdfe69713280b7abd (diff)
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.h5
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);