diff options
Diffstat (limited to 'include/rdma')
| -rw-r--r-- | include/rdma/ib_verbs.h | 47 |
1 files changed, 37 insertions, 10 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 765589f4d166..5342ac64ed1a 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -431,9 +431,11 @@ struct ib_wc { u8 port_num; /* valid only for DR SMPs on switches */ }; -enum ib_cq_notify { - IB_CQ_SOLICITED, - IB_CQ_NEXT_COMP +enum ib_cq_notify_flags { + IB_CQ_SOLICITED = 1 << 0, + IB_CQ_NEXT_COMP = 1 << 1, + IB_CQ_SOLICITED_MASK = IB_CQ_SOLICITED | IB_CQ_NEXT_COMP, + IB_CQ_REPORT_MISSED_EVENTS = 1 << 2, }; enum ib_srq_attr_mask { @@ -912,6 +914,8 @@ struct ib_device { u32 flags; + int num_comp_vectors; + struct iw_cm_verbs *iwcm; int (*query_device)(struct ib_device *device, @@ -978,6 +982,7 @@ struct ib_device { struct ib_recv_wr *recv_wr, struct ib_recv_wr **bad_recv_wr); struct ib_cq * (*create_cq)(struct ib_device *device, int cqe, + int comp_vector, struct ib_ucontext *context, struct ib_udata *udata); int (*destroy_cq)(struct ib_cq *cq); @@ -987,7 +992,7 @@ struct ib_device { struct ib_wc *wc); int (*peek_cq)(struct ib_cq *cq, int wc_cnt); int (*req_notify_cq)(struct ib_cq *cq, - enum ib_cq_notify cq_notify); + enum ib_cq_notify_flags flags); int (*req_ncomp_notif)(struct ib_cq *cq, int wc_cnt); struct ib_mr * (*get_dma_mr)(struct ib_pd *pd, @@ -1358,13 +1363,15 @@ static inline int ib_post_recv(struct ib_qp *qp, * @cq_context: Context associated with the CQ returned to the user via * the associated completion and event handlers. * @cqe: The minimum size of the CQ. + * @comp_vector - Completion vector used to signal completion events. + * Must be >= 0 and < context->num_comp_vectors. * * Users can examine the cq structure to determine the actual CQ size. */ struct ib_cq *ib_create_cq(struct ib_device *device, ib_comp_handler comp_handler, void (*event_handler)(struct ib_event *, void *), - void *cq_context, int cqe); + void *cq_context, int cqe, int comp_vector); /** * ib_resize_cq - Modifies the capacity of the CQ. @@ -1414,14 +1421,34 @@ int ib_peek_cq(struct ib_cq *cq, int wc_cnt); /** * ib_req_notify_cq - Request completion notification on a CQ. * @cq: The CQ to generate an event for. - * @cq_notify: If set to %IB_CQ_SOLICITED, completion notification will - * occur on the next solicited event. If set to %IB_CQ_NEXT_COMP, - * notification will occur on the next completion. + * @flags: + * Must contain exactly one of %IB_CQ_SOLICITED or %IB_CQ_NEXT_COMP + * to request an event on the next solicited event or next work + * completion at any type, respectively. %IB_CQ_REPORT_MISSED_EVENTS + * may also be |ed in to request a hint about missed events, as + * described below. + * + * Return Value: + * < 0 means an error occurred while requesting notification + * == 0 means notification was requested successfully, and if + * IB_CQ_REPORT_MISSED_EVENTS was passed in, then no events + * were missed and it is safe to wait for another event. In + * this case is it guaranteed that any work completions added + * to the CQ since the last CQ poll will trigger a completion + * notification event. + * > 0 is only returned if IB_CQ_REPORT_MISSED_EVENTS was passed + * in. It means that the consumer must poll the CQ again to + * make sure it is empty to avoid missing an event because of a + * race between requesting notification and an entry being + * added to the CQ. This return value means it is possible + * (but not guaranteed) that a work completion has been added + * to the CQ since the last poll without triggering a + * completion notification event. */ static inline int ib_req_notify_cq(struct ib_cq *cq, - enum ib_cq_notify cq_notify) + enum ib_cq_notify_flags flags) { - return cq->device->req_notify_cq(cq, cq_notify); + return cq->device->req_notify_cq(cq, flags); } /** |