rxe_loc.h

  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_cleanup(struct rxe_pool_elem *elem);
 35
 36/* rxe_mcast.c */
 37struct rxe_mcg *rxe_lookup_mcg(struct rxe_dev *rxe, union ib_gid *mgid);
 38int rxe_attach_mcast(struct ib_qp *ibqp, union ib_gid *mgid, u16 mlid);
 39int rxe_detach_mcast(struct ib_qp *ibqp, union ib_gid *mgid, u16 mlid);
 40void rxe_cleanup_mcg(struct kref *kref);
 41
 42/* rxe_mmap.c */
 43struct rxe_mmap_info {
 44	struct list_head	pending_mmaps;
 45	struct ib_ucontext	*context;
 46	struct kref		ref;
 47	void			*obj;
 48
 49	struct mminfo info;
 50};
 51
 52void rxe_mmap_release(struct kref *ref);
 53
 54struct rxe_mmap_info *rxe_create_mmap_info(struct rxe_dev *dev, u32 size,
 55					   struct ib_udata *udata, void *obj);
 56
 57int rxe_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
 58
 59/* rxe_mr.c */
 60u8 rxe_get_next_key(u32 last_key);
 61void rxe_mr_init(int access, struct rxe_mr *mr);
 62void rxe_mr_init_dma(int access, struct rxe_mr *mr);
 63int rxe_mr_init_user(struct rxe_dev *rxe, u64 start, u64 length,
 64		     int access, struct rxe_mr *mr);
 65int rxe_mr_init_fast(int max_pages, struct rxe_mr *mr);
 66int rxe_flush_pmem_iova(struct rxe_mr *mr, u64 iova, unsigned int length);
 67int rxe_mr_copy(struct rxe_mr *mr, u64 iova, void *addr,
 68		unsigned int length, enum rxe_mr_copy_dir dir);
 69int copy_data(struct rxe_pd *pd, int access, struct rxe_dma_info *dma,
 70	      void *addr, int length, enum rxe_mr_copy_dir dir);
 71int rxe_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
 72		  int sg_nents, unsigned int *sg_offset);
 73enum resp_states rxe_mr_do_atomic_op(struct rxe_mr *mr, u64 iova, int opcode,
 74				     u64 compare, u64 swap_add, u64 *orig_val);
 75enum resp_states rxe_mr_do_atomic_write(struct rxe_mr *mr, u64 iova, u64 value);
 76struct rxe_mr *lookup_mr(struct rxe_pd *pd, int access, u32 key,
 77			 enum rxe_mr_lookup_type type);
 78int mr_check_range(struct rxe_mr *mr, u64 iova, size_t length);
 79int advance_dma_data(struct rxe_dma_info *dma, unsigned int length);
 80int rxe_invalidate_mr(struct rxe_qp *qp, u32 key);
 81int rxe_reg_fast_mr(struct rxe_qp *qp, struct rxe_send_wqe *wqe);
 82void rxe_mr_cleanup(struct rxe_pool_elem *elem);
 83
 84/* defined in rxe_mr.c; used in rxe_mr.c and rxe_odp.c */
 85extern spinlock_t atomic_ops_lock;
 86
 87/* rxe_mw.c */
 88int rxe_alloc_mw(struct ib_mw *ibmw, struct ib_udata *udata);
 89int rxe_dealloc_mw(struct ib_mw *ibmw);
 90int rxe_bind_mw(struct rxe_qp *qp, struct rxe_send_wqe *wqe);
 91int rxe_invalidate_mw(struct rxe_qp *qp, u32 rkey);
 92struct rxe_mw *rxe_lookup_mw(struct rxe_qp *qp, int access, u32 rkey);
 93void rxe_mw_cleanup(struct rxe_pool_elem *elem);
 94
 95/* rxe_net.c */
 96struct sk_buff *rxe_init_packet(struct rxe_dev *rxe, struct rxe_av *av,
 97				int paylen, struct rxe_pkt_info *pkt);
 98int rxe_prepare(struct rxe_av *av, struct rxe_pkt_info *pkt,
 99		struct sk_buff *skb);
100int rxe_xmit_packet(struct rxe_qp *qp, struct rxe_pkt_info *pkt,
101		    struct sk_buff *skb);
102const char *rxe_parent_name(struct rxe_dev *rxe, unsigned int port_num);
103
104/* rxe_qp.c */
105int rxe_qp_chk_init(struct rxe_dev *rxe, struct ib_qp_init_attr *init);
106int rxe_qp_from_init(struct rxe_dev *rxe, struct rxe_qp *qp, struct rxe_pd *pd,
107		     struct ib_qp_init_attr *init,
108		     struct rxe_create_qp_resp __user *uresp,
109		     struct ib_pd *ibpd, struct ib_udata *udata);
110int rxe_qp_to_init(struct rxe_qp *qp, struct ib_qp_init_attr *init);
111int rxe_qp_chk_attr(struct rxe_dev *rxe, struct rxe_qp *qp,
112		    struct ib_qp_attr *attr, int mask);
113int rxe_qp_from_attr(struct rxe_qp *qp, struct ib_qp_attr *attr,
114		     int mask, struct ib_udata *udata);
115int rxe_qp_to_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask);
116void rxe_qp_error(struct rxe_qp *qp);
117int rxe_qp_chk_destroy(struct rxe_qp *qp);
118void rxe_qp_cleanup(struct rxe_pool_elem *elem);
119
120static inline int qp_num(struct rxe_qp *qp)
121{
122	return qp->ibqp.qp_num;
123}
124
125static inline enum ib_qp_type qp_type(struct rxe_qp *qp)
126{
127	return qp->ibqp.qp_type;
128}
129
130static inline enum ib_qp_state qp_state(struct rxe_qp *qp)
131{
132	return qp->attr.qp_state;
133}
134
135static inline int qp_mtu(struct rxe_qp *qp)
136{
137	if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC)
138		return qp->attr.path_mtu;
139	else
140		return IB_MTU_4096;
141}
142
143static inline bool is_odp_mr(struct rxe_mr *mr)
144{
145	return IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING) && mr->umem &&
146	       mr->umem->is_odp;
147}
148
149void free_rd_atomic_resource(struct resp_res *res);
150
151static inline void rxe_advance_resp_resource(struct rxe_qp *qp)
152{
153	qp->resp.res_head++;
154	if (unlikely(qp->resp.res_head == qp->attr.max_dest_rd_atomic))
155		qp->resp.res_head = 0;
156}
157
158void retransmit_timer(struct timer_list *t);
159void rnr_nak_timer(struct timer_list *t);
160
161/* rxe_srq.c */
162int rxe_srq_chk_init(struct rxe_dev *rxe, struct ib_srq_init_attr *init);
163int rxe_srq_from_init(struct rxe_dev *rxe, struct rxe_srq *srq,
164		      struct ib_srq_init_attr *init, struct ib_udata *udata,
165		      struct rxe_create_srq_resp __user *uresp);
166int rxe_srq_chk_attr(struct rxe_dev *rxe, struct rxe_srq *srq,
167		     struct ib_srq_attr *attr, enum ib_srq_attr_mask mask);
168int rxe_srq_from_attr(struct rxe_dev *rxe, struct rxe_srq *srq,
169		      struct ib_srq_attr *attr, enum ib_srq_attr_mask mask,
170		      struct rxe_modify_srq_cmd *ucmd, struct ib_udata *udata);
171void rxe_srq_cleanup(struct rxe_pool_elem *elem);
172
173void rxe_dealloc(struct ib_device *ib_dev);
174
175int rxe_completer(struct rxe_qp *qp);
176int rxe_requester(struct rxe_qp *qp);
177int rxe_sender(struct rxe_qp *qp);
178int rxe_receiver(struct rxe_qp *qp);
179
180/* rxe_icrc.c */
181int rxe_icrc_check(struct sk_buff *skb, struct rxe_pkt_info *pkt);
182void rxe_icrc_generate(struct sk_buff *skb, struct rxe_pkt_info *pkt);
183
184void rxe_resp_queue_pkt(struct rxe_qp *qp, struct sk_buff *skb);
185
186void rxe_comp_queue_pkt(struct rxe_qp *qp, struct sk_buff *skb);
187
188static inline unsigned int wr_opcode_mask(int opcode, struct rxe_qp *qp)
189{
190	return rxe_wr_opcode_info[opcode].mask[qp->ibqp.qp_type];
191}
192
193/* rxe_odp.c */
194extern const struct mmu_interval_notifier_ops rxe_mn_ops;
195
196#if defined CONFIG_INFINIBAND_ON_DEMAND_PAGING
197int rxe_odp_mr_init_user(struct rxe_dev *rxe, u64 start, u64 length,
198			 u64 iova, int access_flags, struct rxe_mr *mr);
199int rxe_odp_mr_copy(struct rxe_mr *mr, u64 iova, void *addr, int length,
200		    enum rxe_mr_copy_dir dir);
201enum resp_states rxe_odp_atomic_op(struct rxe_mr *mr, u64 iova, int opcode,
202				   u64 compare, u64 swap_add, u64 *orig_val);
203int rxe_odp_flush_pmem_iova(struct rxe_mr *mr, u64 iova,
204			    unsigned int length);
205enum resp_states rxe_odp_do_atomic_write(struct rxe_mr *mr, u64 iova, u64 value);
206int rxe_ib_advise_mr(struct ib_pd *pd, enum ib_uverbs_advise_mr_advice advice,
207		     u32 flags, struct ib_sge *sg_list, u32 num_sge,
208		     struct uverbs_attr_bundle *attrs);
209#else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
210static inline int
211rxe_odp_mr_init_user(struct rxe_dev *rxe, u64 start, u64 length, u64 iova,
212		     int access_flags, struct rxe_mr *mr)
213{
214	return -EOPNOTSUPP;
215}
216static inline int rxe_odp_mr_copy(struct rxe_mr *mr, u64 iova, void *addr,
217				  int length, enum rxe_mr_copy_dir dir)
218{
219	return -EOPNOTSUPP;
220}
221static inline enum resp_states
222rxe_odp_atomic_op(struct rxe_mr *mr, u64 iova, int opcode,
223		  u64 compare, u64 swap_add, u64 *orig_val)
224{
225	return RESPST_ERR_UNSUPPORTED_OPCODE;
226}
227static inline int rxe_odp_flush_pmem_iova(struct rxe_mr *mr, u64 iova,
228					  unsigned int length)
229{
230	return -EOPNOTSUPP;
231}
232static inline enum resp_states rxe_odp_do_atomic_write(struct rxe_mr *mr,
233						       u64 iova, u64 value)
234{
235	return RESPST_ERR_UNSUPPORTED_OPCODE;
236}
237static inline int rxe_ib_advise_mr(struct ib_pd *pd,
238				   enum ib_uverbs_advise_mr_advice advice,
239				   u32 flags, struct ib_sge *sg_list,
240				   u32 num_sge,
241				   struct uverbs_attr_bundle *attrs)
242{
243	return -EOPNOTSUPP;
244}
245
246#endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
247
248#endif /* RXE_LOC_H */