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1/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */2/*3 * Copyright(c) 2018 Intel Corporation.4 *5 */6 7#ifndef HFI1_RC_H8#define HFI1_RC_H9 10/* cut down ridiculously long IB macro names */11#define OP(x) IB_OPCODE_RC_##x12 13static inline void update_ack_queue(struct rvt_qp *qp, unsigned int n)14{15 unsigned int next;16 17 next = n + 1;18 if (next > rvt_size_atomic(ib_to_rvt(qp->ibqp.device)))19 next = 0;20 qp->s_tail_ack_queue = next;21 qp->s_acked_ack_queue = next;22 qp->s_ack_state = OP(ACKNOWLEDGE);23}24 25static inline void rc_defered_ack(struct hfi1_ctxtdata *rcd,26 struct rvt_qp *qp)27{28 if (list_empty(&qp->rspwait)) {29 qp->r_flags |= RVT_R_RSP_NAK;30 rvt_get_qp(qp);31 list_add_tail(&qp->rspwait, &rcd->qp_wait_list);32 }33}34 35static inline u32 restart_sge(struct rvt_sge_state *ss, struct rvt_swqe *wqe,36 u32 psn, u32 pmtu)37{38 u32 len;39 40 len = delta_psn(psn, wqe->psn) * pmtu;41 return rvt_restart_sge(ss, wqe, len);42}43 44static inline void release_rdma_sge_mr(struct rvt_ack_entry *e)45{46 if (e->rdma_sge.mr) {47 rvt_put_mr(e->rdma_sge.mr);48 e->rdma_sge.mr = NULL;49 }50}51 52struct rvt_ack_entry *find_prev_entry(struct rvt_qp *qp, u32 psn, u8 *prev,53 u8 *prev_ack, bool *scheduled);54int do_rc_ack(struct rvt_qp *qp, u32 aeth, u32 psn, int opcode, u64 val,55 struct hfi1_ctxtdata *rcd);56struct rvt_swqe *do_rc_completion(struct rvt_qp *qp, struct rvt_swqe *wqe,57 struct hfi1_ibport *ibp);58 59#endif /* HFI1_RC_H */60