diff options
| author | Eli Cohen <eli@dev.mellanox.co.il> | 2008-04-17 08:09:33 +0400 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-04-17 08:09:33 +0400 |
| commit | 2dd5716227878d5950988514a2cbabf72f7fc888 (patch) | |
| tree | cd999c4f9bcf1bb1f54fc6b91fac7d16552a930e | |
| parent | 82c24c18afc5e1c2a955bdc2762b19721283365c (diff) | |
| download | linux-2dd5716227878d5950988514a2cbabf72f7fc888.tar.xz | |
IB/core: Add support for modify CQ
Add support for modifying CQ parameters for controlling event
generation moderation.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 7 | ||||
| -rw-r--r-- | include/rdma/ib_verbs.h | 11 |
2 files changed, 18 insertions, 0 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 8ffb5f2c21f7..05042089de6e 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -630,6 +630,13 @@ struct ib_cq *ib_create_cq(struct ib_device *device, } EXPORT_SYMBOL(ib_create_cq); +int ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period) +{ + return cq->device->modify_cq ? + cq->device->modify_cq(cq, cq_count, cq_period) : -ENOSYS; +} +EXPORT_SYMBOL(ib_modify_cq); + int ib_destroy_cq(struct ib_cq *cq) { if (atomic_read(&cq->usecnt)) diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index c48f6af5ef9a..95bf4bac44cb 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -987,6 +987,8 @@ struct ib_device { int comp_vector, struct ib_ucontext *context, struct ib_udata *udata); + int (*modify_cq)(struct ib_cq *cq, u16 cq_count, + u16 cq_period); int (*destroy_cq)(struct ib_cq *cq); int (*resize_cq)(struct ib_cq *cq, int cqe, struct ib_udata *udata); @@ -1392,6 +1394,15 @@ struct ib_cq *ib_create_cq(struct ib_device *device, int ib_resize_cq(struct ib_cq *cq, int cqe); /** + * ib_modify_cq - Modifies moderation params of the CQ + * @cq: The CQ to modify. + * @cq_count: number of CQEs that will trigger an event + * @cq_period: max period of time in usec before triggering an event + * + */ +int ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period); + +/** * ib_destroy_cq - Destroys the specified CQ. * @cq: The CQ to destroy. */ |