diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/rc.h')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/rc.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/rc.h b/drivers/infiniband/hw/hfi1/rc.h new file mode 100644 index 0000000000..5ed5e85d58 --- /dev/null +++ b/drivers/infiniband/hw/hfi1/rc.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ +/* + * Copyright(c) 2018 Intel Corporation. + * + */ + +#ifndef HFI1_RC_H +#define HFI1_RC_H + +/* cut down ridiculously long IB macro names */ +#define OP(x) IB_OPCODE_RC_##x + +static inline void update_ack_queue(struct rvt_qp *qp, unsigned int n) +{ + unsigned int next; + + next = n + 1; + if (next > rvt_size_atomic(ib_to_rvt(qp->ibqp.device))) + next = 0; + qp->s_tail_ack_queue = next; + qp->s_acked_ack_queue = next; + qp->s_ack_state = OP(ACKNOWLEDGE); +} + +static inline void rc_defered_ack(struct hfi1_ctxtdata *rcd, + struct rvt_qp *qp) +{ + if (list_empty(&qp->rspwait)) { + qp->r_flags |= RVT_R_RSP_NAK; + rvt_get_qp(qp); + list_add_tail(&qp->rspwait, &rcd->qp_wait_list); + } +} + +static inline u32 restart_sge(struct rvt_sge_state *ss, struct rvt_swqe *wqe, + u32 psn, u32 pmtu) +{ + u32 len; + + len = delta_psn(psn, wqe->psn) * pmtu; + return rvt_restart_sge(ss, wqe, len); +} + +static inline void release_rdma_sge_mr(struct rvt_ack_entry *e) +{ + if (e->rdma_sge.mr) { + rvt_put_mr(e->rdma_sge.mr); + e->rdma_sge.mr = NULL; + } +} + +struct rvt_ack_entry *find_prev_entry(struct rvt_qp *qp, u32 psn, u8 *prev, + u8 *prev_ack, bool *scheduled); +int do_rc_ack(struct rvt_qp *qp, u32 aeth, u32 psn, int opcode, u64 val, + struct hfi1_ctxtdata *rcd); +struct rvt_swqe *do_rc_completion(struct rvt_qp *qp, struct rvt_swqe *wqe, + struct hfi1_ibport *ibp); + +#endif /* HFI1_RC_H */ |