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/*
* Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#ifndef USNIC_IB_QP_GRP_H_
#define USNIC_IB_QP_GRP_H_
#include <linux/debugfs.h>
#include <rdma/ib_verbs.h>
#include "usnic_ib.h"
#include "usnic_abi.h"
#include "usnic_fwd.h"
#include "usnic_vnic.h"
/*
* The qp group struct represents all the hw resources needed to present a ib_qp
*/
struct usnic_ib_qp_grp {
struct ib_qp ibqp;
enum ib_qp_state state;
int grp_id;
struct usnic_fwd_dev *ufdev;
struct usnic_ib_ucontext *ctx;
struct list_head flows_lst;
struct usnic_vnic_res_chunk **res_chunk_list;
pid_t owner_pid;
struct usnic_ib_vf *vf;
struct list_head link;
spinlock_t lock;
struct kobject kobj;
};
struct usnic_ib_qp_grp_flow {
struct usnic_fwd_flow *flow;
enum usnic_transport_type trans_type;
union {
struct {
uint16_t port_num;
} usnic_roce;
struct {
struct socket *sock;
} udp;
};
struct usnic_ib_qp_grp *qp_grp;
struct list_head link;
/* Debug FS */
struct dentry *dbgfs_dentry;
char dentry_name[32];
};
static const struct
usnic_vnic_res_spec min_transport_spec[USNIC_TRANSPORT_MAX] = {
{ /*USNIC_TRANSPORT_UNKNOWN*/
.resources = {
{.type = USNIC_VNIC_RES_TYPE_EOL, .cnt = 0,},
},
},
{ /*USNIC_TRANSPORT_ROCE_CUSTOM*/
.resources = {
{.type = USNIC_VNIC_RES_TYPE_WQ, .cnt = 1,},
{.type = USNIC_VNIC_RES_TYPE_RQ, .cnt = 1,},
{.type = USNIC_VNIC_RES_TYPE_CQ, .cnt = 1,},
{.type = USNIC_VNIC_RES_TYPE_EOL, .cnt = 0,},
},
},
{ /*USNIC_TRANSPORT_IPV4_UDP*/
.resources = {
{.type = USNIC_VNIC_RES_TYPE_WQ, .cnt = 1,},
{.type = USNIC_VNIC_RES_TYPE_RQ, .cnt = 1,},
{.type = USNIC_VNIC_RES_TYPE_CQ, .cnt = 1,},
{.type = USNIC_VNIC_RES_TYPE_EOL, .cnt = 0,},
},
},
};
const char *usnic_ib_qp_grp_state_to_string(enum ib_qp_state state);
int usnic_ib_qp_grp_dump_hdr(char *buf, int buf_sz);
int usnic_ib_qp_grp_dump_rows(void *obj, char *buf, int buf_sz);
struct usnic_ib_qp_grp *
usnic_ib_qp_grp_create(struct usnic_fwd_dev *ufdev, struct usnic_ib_vf *vf,
struct usnic_ib_pd *pd,
struct usnic_vnic_res_spec *res_spec,
struct usnic_transport_spec *trans_spec);
void usnic_ib_qp_grp_destroy(struct usnic_ib_qp_grp *qp_grp);
int usnic_ib_qp_grp_modify(struct usnic_ib_qp_grp *qp_grp,
enum ib_qp_state new_state,
void *data);
struct usnic_vnic_res_chunk
*usnic_ib_qp_grp_get_chunk(struct usnic_ib_qp_grp *qp_grp,
enum usnic_vnic_res_type type);
static inline
struct usnic_ib_qp_grp *to_uqp_grp(struct ib_qp *ibqp)
{
return container_of(ibqp, struct usnic_ib_qp_grp, ibqp);
}
#endif /* USNIC_IB_QP_GRP_H_ */
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