| /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ |
| /* |
| * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved. |
| * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved. |
| */ |
| |
| #ifndef RXE_LOC_H |
| #define RXE_LOC_H |
| |
| /* rxe_av.c */ |
| void rxe_init_av(struct rdma_ah_attr *attr, struct rxe_av *av); |
| |
| int rxe_av_chk_attr(struct rxe_dev *rxe, struct rdma_ah_attr *attr); |
| |
| void rxe_av_from_attr(u8 port_num, struct rxe_av *av, |
| struct rdma_ah_attr *attr); |
| |
| void rxe_av_to_attr(struct rxe_av *av, struct rdma_ah_attr *attr); |
| |
| void rxe_av_fill_ip_info(struct rxe_av *av, struct rdma_ah_attr *attr); |
| |
| struct rxe_av *rxe_get_av(struct rxe_pkt_info *pkt); |
| |
| /* rxe_cq.c */ |
| int rxe_cq_chk_attr(struct rxe_dev *rxe, struct rxe_cq *cq, |
| int cqe, int comp_vector); |
| |
| int rxe_cq_from_init(struct rxe_dev *rxe, struct rxe_cq *cq, int cqe, |
| int comp_vector, struct ib_udata *udata, |
| struct rxe_create_cq_resp __user *uresp); |
| |
| int rxe_cq_resize_queue(struct rxe_cq *cq, int new_cqe, |
| struct rxe_resize_cq_resp __user *uresp, |
| struct ib_udata *udata); |
| |
| int rxe_cq_post(struct rxe_cq *cq, struct rxe_cqe *cqe, int solicited); |
| |
| void rxe_cq_disable(struct rxe_cq *cq); |
| |
| void rxe_cq_cleanup(struct rxe_pool_entry *arg); |
| |
| /* rxe_mcast.c */ |
| int rxe_mcast_get_grp(struct rxe_dev *rxe, union ib_gid *mgid, |
| struct rxe_mc_grp **grp_p); |
| |
| int rxe_mcast_add_grp_elem(struct rxe_dev *rxe, struct rxe_qp *qp, |
| struct rxe_mc_grp *grp); |
| |
| int rxe_mcast_drop_grp_elem(struct rxe_dev *rxe, struct rxe_qp *qp, |
| union ib_gid *mgid); |
| |
| void rxe_drop_all_mcast_groups(struct rxe_qp *qp); |
| |
| void rxe_mc_cleanup(struct rxe_pool_entry *arg); |
| |
| /* rxe_mmap.c */ |
| struct rxe_mmap_info { |
| struct list_head pending_mmaps; |
| struct ib_ucontext *context; |
| struct kref ref; |
| void *obj; |
| |
| struct mminfo info; |
| }; |
| |
| void rxe_mmap_release(struct kref *ref); |
| |
| struct rxe_mmap_info *rxe_create_mmap_info(struct rxe_dev *dev, u32 size, |
| struct ib_udata *udata, void *obj); |
| |
| int rxe_mmap(struct ib_ucontext *context, struct vm_area_struct *vma); |
| |
| /* rxe_mr.c */ |
| enum copy_direction { |
| to_mem_obj, |
| from_mem_obj, |
| }; |
| |
| void rxe_mem_init_dma(struct rxe_pd *pd, |
| int access, struct rxe_mem *mem); |
| |
| int rxe_mem_init_user(struct rxe_pd *pd, u64 start, |
| u64 length, u64 iova, int access, struct ib_udata *udata, |
| struct rxe_mem *mr); |
| |
| int rxe_mem_init_fast(struct rxe_pd *pd, |
| int max_pages, struct rxe_mem *mem); |
| |
| int rxe_mem_copy(struct rxe_mem *mem, u64 iova, void *addr, |
| int length, enum copy_direction dir, u32 *crcp); |
| |
| int copy_data(struct rxe_pd *pd, int access, |
| struct rxe_dma_info *dma, void *addr, int length, |
| enum copy_direction dir, u32 *crcp); |
| |
| void *iova_to_vaddr(struct rxe_mem *mem, u64 iova, int length); |
| |
| enum lookup_type { |
| lookup_local, |
| lookup_remote, |
| }; |
| |
| struct rxe_mem *lookup_mem(struct rxe_pd *pd, int access, u32 key, |
| enum lookup_type type); |
| |
| int mem_check_range(struct rxe_mem *mem, u64 iova, size_t length); |
| |
| void rxe_mem_cleanup(struct rxe_pool_entry *arg); |
| |
| int advance_dma_data(struct rxe_dma_info *dma, unsigned int length); |
| |
| /* rxe_net.c */ |
| void rxe_loopback(struct sk_buff *skb); |
| int rxe_send(struct rxe_pkt_info *pkt, struct sk_buff *skb); |
| struct sk_buff *rxe_init_packet(struct rxe_dev *rxe, struct rxe_av *av, |
| int paylen, struct rxe_pkt_info *pkt); |
| int rxe_prepare(struct rxe_pkt_info *pkt, struct sk_buff *skb, u32 *crc); |
| const char *rxe_parent_name(struct rxe_dev *rxe, unsigned int port_num); |
| struct device *rxe_dma_device(struct rxe_dev *rxe); |
| int rxe_mcast_add(struct rxe_dev *rxe, union ib_gid *mgid); |
| int rxe_mcast_delete(struct rxe_dev *rxe, union ib_gid *mgid); |
| |
| /* rxe_qp.c */ |
| int rxe_qp_chk_init(struct rxe_dev *rxe, struct ib_qp_init_attr *init); |
| |
| int rxe_qp_from_init(struct rxe_dev *rxe, struct rxe_qp *qp, struct rxe_pd *pd, |
| struct ib_qp_init_attr *init, |
| struct rxe_create_qp_resp __user *uresp, |
| struct ib_pd *ibpd, struct ib_udata *udata); |
| |
| int rxe_qp_to_init(struct rxe_qp *qp, struct ib_qp_init_attr *init); |
| |
| int rxe_qp_chk_attr(struct rxe_dev *rxe, struct rxe_qp *qp, |
| struct ib_qp_attr *attr, int mask); |
| |
| int rxe_qp_from_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, |
| int mask, struct ib_udata *udata); |
| |
| int rxe_qp_to_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask); |
| |
| void rxe_qp_error(struct rxe_qp *qp); |
| |
| void rxe_qp_destroy(struct rxe_qp *qp); |
| |
| void rxe_qp_cleanup(struct rxe_pool_entry *arg); |
| |
| static inline int qp_num(struct rxe_qp *qp) |
| { |
| return qp->ibqp.qp_num; |
| } |
| |
| static inline enum ib_qp_type qp_type(struct rxe_qp *qp) |
| { |
| return qp->ibqp.qp_type; |
| } |
| |
| static inline enum ib_qp_state qp_state(struct rxe_qp *qp) |
| { |
| return qp->attr.qp_state; |
| } |
| |
| static inline int qp_mtu(struct rxe_qp *qp) |
| { |
| if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC) |
| return qp->attr.path_mtu; |
| else |
| return IB_MTU_4096; |
| } |
| |
| static inline int rcv_wqe_size(int max_sge) |
| { |
| return sizeof(struct rxe_recv_wqe) + |
| max_sge * sizeof(struct ib_sge); |
| } |
| |
| void free_rd_atomic_resource(struct rxe_qp *qp, struct resp_res *res); |
| |
| static inline void rxe_advance_resp_resource(struct rxe_qp *qp) |
| { |
| qp->resp.res_head++; |
| if (unlikely(qp->resp.res_head == qp->attr.max_dest_rd_atomic)) |
| qp->resp.res_head = 0; |
| } |
| |
| void retransmit_timer(struct timer_list *t); |
| void rnr_nak_timer(struct timer_list *t); |
| |
| /* rxe_srq.c */ |
| #define IB_SRQ_INIT_MASK (~IB_SRQ_LIMIT) |
| |
| int rxe_srq_chk_attr(struct rxe_dev *rxe, struct rxe_srq *srq, |
| struct ib_srq_attr *attr, enum ib_srq_attr_mask mask); |
| |
| int rxe_srq_from_init(struct rxe_dev *rxe, struct rxe_srq *srq, |
| struct ib_srq_init_attr *init, struct ib_udata *udata, |
| struct rxe_create_srq_resp __user *uresp); |
| |
| int rxe_srq_from_attr(struct rxe_dev *rxe, struct rxe_srq *srq, |
| struct ib_srq_attr *attr, enum ib_srq_attr_mask mask, |
| struct rxe_modify_srq_cmd *ucmd, struct ib_udata *udata); |
| |
| void rxe_dealloc(struct ib_device *ib_dev); |
| |
| int rxe_completer(void *arg); |
| int rxe_requester(void *arg); |
| int rxe_responder(void *arg); |
| |
| u32 rxe_icrc_hdr(struct rxe_pkt_info *pkt, struct sk_buff *skb); |
| |
| void rxe_resp_queue_pkt(struct rxe_qp *qp, struct sk_buff *skb); |
| |
| void rxe_comp_queue_pkt(struct rxe_qp *qp, struct sk_buff *skb); |
| |
| static inline unsigned int wr_opcode_mask(int opcode, struct rxe_qp *qp) |
| { |
| return rxe_wr_opcode_info[opcode].mask[qp->ibqp.qp_type]; |
| } |
| |
| static inline int rxe_xmit_packet(struct rxe_qp *qp, struct rxe_pkt_info *pkt, |
| struct sk_buff *skb) |
| { |
| int err; |
| int is_request = pkt->mask & RXE_REQ_MASK; |
| struct rxe_dev *rxe = to_rdev(qp->ibqp.device); |
| |
| if ((is_request && (qp->req.state != QP_STATE_READY)) || |
| (!is_request && (qp->resp.state != QP_STATE_READY))) { |
| pr_info("Packet dropped. QP is not in ready state\n"); |
| goto drop; |
| } |
| |
| if (pkt->mask & RXE_LOOPBACK_MASK) { |
| memcpy(SKB_TO_PKT(skb), pkt, sizeof(*pkt)); |
| rxe_loopback(skb); |
| err = 0; |
| } else { |
| err = rxe_send(pkt, skb); |
| } |
| |
| if (err) { |
| rxe->xmit_errors++; |
| rxe_counter_inc(rxe, RXE_CNT_SEND_ERR); |
| return err; |
| } |
| |
| if ((qp_type(qp) != IB_QPT_RC) && |
| (pkt->mask & RXE_END_MASK)) { |
| pkt->wqe->state = wqe_state_done; |
| rxe_run_task(&qp->comp.task, 1); |
| } |
| |
| rxe_counter_inc(rxe, RXE_CNT_SENT_PKTS); |
| goto done; |
| |
| drop: |
| kfree_skb(skb); |
| err = 0; |
| done: |
| return err; |
| } |
| |
| #endif /* RXE_LOC_H */ |