From: Eli Cohen Date: Thu, 17 Apr 2008 04:09:33 +0000 (-0700) Subject: IB/core: Add support for modify CQ X-Git-Tag: v2.6.26-rc1~1156^2~15 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2dd5716227878d5950988514a2cbabf72f7fc888;p=linux-2.6 IB/core: Add support for modify CQ Add support for modifying CQ parameters for controlling event generation moderation. Signed-off-by: Eli Cohen Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 8ffb5f2c21..05042089de 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 c48f6af5ef..95bf4bac44 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); @@ -1391,6 +1393,15 @@ 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.