1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
  2/*
  3 * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
  4 * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
  5 */
  6
  7#ifndef RXE_LOC_H
  8#define RXE_LOC_H
  9
 10/* rxe_av.c */
 11void rxe_init_av(struct rdma_ah_attr *attr, struct rxe_av *av);
 12int rxe_av_chk_attr(struct rxe_qp *qp, struct rdma_ah_attr *attr);
 13int rxe_ah_chk_attr(struct rxe_ah *ah, struct rdma_ah_attr *attr);
 14void rxe_av_from_attr(u8 port_num, struct rxe_av *av,
 15		     struct rdma_ah_attr *attr);
 16void rxe_av_to_attr(struct rxe_av *av, struct rdma_ah_attr *attr);
 17void rxe_av_fill_ip_info(struct rxe_av *av, struct rdma_ah_attr *attr);
 18struct rxe_av *rxe_get_av(struct rxe_pkt_info *pkt, struct rxe_ah **ahp);
 19
 20/* rxe_cq.c */
 21int rxe_cq_chk_attr(struct rxe_dev *rxe, struct rxe_cq *cq,
 22		    int cqe, int comp_vector);
 23
 24int rxe_cq_from_init(struct rxe_dev *rxe, struct rxe_cq *cq, int cqe,
 25		     int comp_vector, struct ib_udata *udata,
 26		     struct rxe_create_cq_resp __user *uresp);
 27
 28int rxe_cq_resize_queue(struct rxe_cq *cq, int new_cqe,
 29			struct rxe_resize_cq_resp __user *uresp,
 30			struct ib_udata *udata);
 31
 32int rxe_cq_post(struct rxe_cq *cq, struct rxe_cqe *cqe, int solicited);
 33
 34void rxe_cq_disable(struct rxe_cq *cq);
 35
 36void rxe_cq_cleanup(struct rxe_pool_elem *elem);
 37
 38/* rxe_mcast.c */
 39struct rxe_mcg *rxe_lookup_mcg(struct rxe_dev *rxe, union ib_gid *mgid);
 40int rxe_attach_mcast(struct ib_qp *ibqp, union ib_gid *mgid, u16 mlid);
 41int rxe_detach_mcast(struct ib_qp *ibqp, union ib_gid *mgid, u16 mlid);
 42void rxe_cleanup_mcg(struct kref *kref);
 43
 44/* rxe_mmap.c */
 45struct rxe_mmap_info {
 46	struct list_head	pending_mmaps;
 47	struct ib_ucontext	*context;
 48	struct kref		ref;
 49	void			*obj;
 50
 51	struct mminfo info;
 52};
 53
 54void rxe_mmap_release(struct kref *ref);
 55
 56struct rxe_mmap_info *rxe_create_mmap_info(struct rxe_dev *dev, u32 size,
 57					   struct ib_udata *udata, void *obj);
 58
 59int rxe_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
 60
 61/* rxe_mr.c */
 62u8 rxe_get_next_key(u32 last_key);
 63void rxe_mr_init_dma(int access, struct rxe_mr *mr);
 64int rxe_mr_init_user(struct rxe_dev *rxe, u64 start, u64 length, u64 iova,
 65		     int access, struct rxe_mr *mr);
 66int rxe_mr_init_fast(int max_pages, struct rxe_mr *mr);
 67int rxe_flush_pmem_iova(struct rxe_mr *mr, u64 iova, int length);
 68int rxe_mr_copy(struct rxe_mr *mr, u64 iova, void *addr, int length,
 69		enum rxe_mr_copy_dir dir);
 70int copy_data(struct rxe_pd *pd, int access, struct rxe_dma_info *dma,
 71	      void *addr, int length, enum rxe_mr_copy_dir dir);
 72void *iova_to_vaddr(struct rxe_mr *mr, u64 iova, int length);
 73struct rxe_mr *lookup_mr(struct rxe_pd *pd, int access, u32 key,
 74			 enum rxe_mr_lookup_type type);
 75int mr_check_range(struct rxe_mr *mr, u64 iova, size_t length);
 76int advance_dma_data(struct rxe_dma_info *dma, unsigned int length);
 77int rxe_invalidate_mr(struct rxe_qp *qp, u32 key);
 78int rxe_reg_fast_mr(struct rxe_qp *qp, struct rxe_send_wqe *wqe);
 79int rxe_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
 80void rxe_mr_cleanup(struct rxe_pool_elem *elem);
 81
 82/* rxe_mw.c */
 83int rxe_alloc_mw(struct ib_mw *ibmw, struct ib_udata *udata);
 84int rxe_dealloc_mw(struct ib_mw *ibmw);
 85int rxe_bind_mw(struct rxe_qp *qp, struct rxe_send_wqe *wqe);
 86int rxe_invalidate_mw(struct rxe_qp *qp, u32 rkey);
 87struct rxe_mw *rxe_lookup_mw(struct rxe_qp *qp, int access, u32 rkey);
 88void rxe_mw_cleanup(struct rxe_pool_elem *elem);
 89
 90/* rxe_net.c */
 91struct sk_buff *rxe_init_packet(struct rxe_dev *rxe, struct rxe_av *av,
 92				int paylen, struct rxe_pkt_info *pkt);
 93int rxe_prepare(struct rxe_av *av, struct rxe_pkt_info *pkt,
 94		struct sk_buff *skb);
 95int rxe_xmit_packet(struct rxe_qp *qp, struct rxe_pkt_info *pkt,
 96		    struct sk_buff *skb);
 97const char *rxe_parent_name(struct rxe_dev *rxe, unsigned int port_num);
 98
 99/* rxe_qp.c */
100int rxe_qp_chk_init(struct rxe_dev *rxe, struct ib_qp_init_attr *init);
101int rxe_qp_from_init(struct rxe_dev *rxe, struct rxe_qp *qp, struct rxe_pd *pd,
102		     struct ib_qp_init_attr *init,
103		     struct rxe_create_qp_resp __user *uresp,
104		     struct ib_pd *ibpd, struct ib_udata *udata);
105int rxe_qp_to_init(struct rxe_qp *qp, struct ib_qp_init_attr *init);
106int rxe_qp_chk_attr(struct rxe_dev *rxe, struct rxe_qp *qp,
107		    struct ib_qp_attr *attr, int mask);
108int rxe_qp_from_attr(struct rxe_qp *qp, struct ib_qp_attr *attr,
109		     int mask, struct ib_udata *udata);
110int rxe_qp_to_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask);
111void rxe_qp_error(struct rxe_qp *qp);
112int rxe_qp_chk_destroy(struct rxe_qp *qp);
113void rxe_qp_cleanup(struct rxe_pool_elem *elem);
114
115static inline int qp_num(struct rxe_qp *qp)
116{
117	return qp->ibqp.qp_num;
118}
119
120static inline enum ib_qp_type qp_type(struct rxe_qp *qp)
121{
122	return qp->ibqp.qp_type;
123}
124
125static inline enum ib_qp_state qp_state(struct rxe_qp *qp)
126{
127	return qp->attr.qp_state;
128}
129
130static inline int qp_mtu(struct rxe_qp *qp)
131{
132	if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC)
133		return qp->attr.path_mtu;
134	else
135		return IB_MTU_4096;
136}
137
138static inline int rcv_wqe_size(int max_sge)
139{
140	return sizeof(struct rxe_recv_wqe) +
141		max_sge * sizeof(struct ib_sge);
142}
143
144void free_rd_atomic_resource(struct resp_res *res);
145
146static inline void rxe_advance_resp_resource(struct rxe_qp *qp)
147{
148	qp->resp.res_head++;
149	if (unlikely(qp->resp.res_head == qp->attr.max_dest_rd_atomic))
150		qp->resp.res_head = 0;
151}
152
153void retransmit_timer(struct timer_list *t);
154void rnr_nak_timer(struct timer_list *t);
155
156/* rxe_srq.c */
157int rxe_srq_chk_init(struct rxe_dev *rxe, struct ib_srq_init_attr *init);
158int rxe_srq_from_init(struct rxe_dev *rxe, struct rxe_srq *srq,
159		      struct ib_srq_init_attr *init, struct ib_udata *udata,
160		      struct rxe_create_srq_resp __user *uresp);
161int rxe_srq_chk_attr(struct rxe_dev *rxe, struct rxe_srq *srq,
162		     struct ib_srq_attr *attr, enum ib_srq_attr_mask mask);
163int rxe_srq_from_attr(struct rxe_dev *rxe, struct rxe_srq *srq,
164		      struct ib_srq_attr *attr, enum ib_srq_attr_mask mask,
165		      struct rxe_modify_srq_cmd *ucmd, struct ib_udata *udata);
166void rxe_srq_cleanup(struct rxe_pool_elem *elem);
167
168void rxe_dealloc(struct ib_device *ib_dev);
169
170int rxe_completer(void *arg);
171int rxe_requester(void *arg);
172int rxe_responder(void *arg);
173
174/* rxe_icrc.c */
175int rxe_icrc_init(struct rxe_dev *rxe);
176int rxe_icrc_check(struct sk_buff *skb, struct rxe_pkt_info *pkt);
177void rxe_icrc_generate(struct sk_buff *skb, struct rxe_pkt_info *pkt);
178
179void rxe_resp_queue_pkt(struct rxe_qp *qp, struct sk_buff *skb);
180
181void rxe_comp_queue_pkt(struct rxe_qp *qp, struct sk_buff *skb);
182
183static inline unsigned int wr_opcode_mask(int opcode, struct rxe_qp *qp)
184{
185	return rxe_wr_opcode_info[opcode].mask[qp->ibqp.qp_type];
186}
187
188#endif /* RXE_LOC_H */