1/*
  2 * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
  3 *
  4 * This software is available to you under a choice of one of two
  5 * licenses.  You may choose to be licensed under the terms of the GNU
  6 * General Public License (GPL) Version 2, available from the file
  7 * COPYING in the main directory of this source tree, or the
  8 * BSD license below:
  9 *
 10 *     Redistribution and use in source and binary forms, with or
 11 *     without modification, are permitted provided that the following
 12 *     conditions are met:
 13 *
 14 *      - Redistributions of source code must retain the above
 15 *        copyright notice, this list of conditions and the following
 16 *        disclaimer.
 17 *
 18 *      - Redistributions in binary form must reproduce the above
 19 *        copyright notice, this list of conditions and the following
 20 *        disclaimer in the documentation and/or other materials
 21 *        provided with the distribution.
 22 *
 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 30 * SOFTWARE.
 31 *
 32 */
 33
 34#ifndef USNIC_IB_QP_GRP_H_
 35#define USNIC_IB_QP_GRP_H_
 36
 37#include <linux/debugfs.h>
 38#include <rdma/ib_verbs.h>
 39
 40#include "usnic_ib.h"
 41#include "usnic_abi.h"
 42#include "usnic_fwd.h"
 43#include "usnic_vnic.h"
 44
 45/*
 46 * The qp group struct represents all the hw resources needed to present a ib_qp
 47 */
 48struct usnic_ib_qp_grp {
 49	struct ib_qp				ibqp;
 50	enum ib_qp_state			state;
 51	int					grp_id;
 52
 53	struct usnic_fwd_dev			*ufdev;
 54	struct usnic_ib_ucontext		*ctx;
 55	struct list_head			flows_lst;
 56
 57	struct usnic_vnic_res_chunk		**res_chunk_list;
 58
 59	pid_t					owner_pid;
 60	struct usnic_ib_vf			*vf;
 61	struct list_head			link;
 62
 63	spinlock_t				lock;
 64
 65	struct kobject				kobj;
 66};
 67
 68struct usnic_ib_qp_grp_flow {
 69	struct usnic_fwd_flow		*flow;
 70	enum usnic_transport_type	trans_type;
 71	union {
 72		struct {
 73			uint16_t	port_num;
 74		} usnic_roce;
 75		struct {
 76			struct socket	*sock;
 77		} udp;
 78	};
 79	struct usnic_ib_qp_grp		*qp_grp;
 80	struct list_head		link;
 81
 82	/* Debug FS */
 83	struct dentry			*dbgfs_dentry;
 84	char				dentry_name[32];
 85};
 86
 87extern const struct usnic_vnic_res_spec min_transport_spec[USNIC_TRANSPORT_MAX];
 88
 89const char *usnic_ib_qp_grp_state_to_string(enum ib_qp_state state);
 90int usnic_ib_qp_grp_dump_hdr(char *buf, int buf_sz);
 91int usnic_ib_qp_grp_dump_rows(void *obj, char *buf, int buf_sz);
 92int usnic_ib_qp_grp_create(struct usnic_ib_qp_grp *qp,
 93			   struct usnic_fwd_dev *ufdev, struct usnic_ib_vf *vf,
 94			   struct usnic_ib_pd *pd,
 95			   struct usnic_vnic_res_spec *res_spec,
 96			   struct usnic_transport_spec *trans_spec);
 97void usnic_ib_qp_grp_destroy(struct usnic_ib_qp_grp *qp_grp);
 98int usnic_ib_qp_grp_modify(struct usnic_ib_qp_grp *qp_grp,
 99				enum ib_qp_state new_state,
100				void *data);
101struct usnic_vnic_res_chunk
102*usnic_ib_qp_grp_get_chunk(struct usnic_ib_qp_grp *qp_grp,
103				enum usnic_vnic_res_type type);
104static inline
105struct usnic_ib_qp_grp *to_uqp_grp(struct ib_qp *ibqp)
106{
107	return container_of(ibqp, struct usnic_ib_qp_grp, ibqp);
108}
109#endif /* USNIC_IB_QP_GRP_H_ */