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1/*
2 * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
3 * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 */
33
34#ifndef RXE_H
35#define RXE_H
36
37#ifdef pr_fmt
38#undef pr_fmt
39#endif
40#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
41
42#include <linux/module.h>
43#include <linux/skbuff.h>
44#include <linux/crc32.h>
45
46#include <rdma/ib_verbs.h>
47#include <rdma/ib_user_verbs.h>
48#include <rdma/ib_pack.h>
49#include <rdma/ib_smi.h>
50#include <rdma/ib_umem.h>
51#include <rdma/ib_cache.h>
52#include <rdma/ib_addr.h>
53
54#include "rxe_net.h"
55#include "rxe_opcode.h"
56#include "rxe_hdr.h"
57#include "rxe_param.h"
58#include "rxe_verbs.h"
59
60#define RXE_UVERBS_ABI_VERSION (1)
61
62#define IB_PHYS_STATE_LINK_UP (5)
63#define IB_PHYS_STATE_LINK_DOWN (3)
64
65#define RXE_ROCE_V2_SPORT (0xc000)
66
67int rxe_set_mtu(struct rxe_dev *rxe, unsigned int dev_mtu);
68
69int rxe_add(struct rxe_dev *rxe, unsigned int mtu);
70void rxe_remove(struct rxe_dev *rxe);
71void rxe_remove_all(void);
72
73int rxe_rcv(struct sk_buff *skb);
74
75void rxe_dev_put(struct rxe_dev *rxe);
76struct rxe_dev *net_to_rxe(struct net_device *ndev);
77struct rxe_dev *get_rxe_by_name(const char* name);
78
79void rxe_port_up(struct rxe_dev *rxe);
80void rxe_port_down(struct rxe_dev *rxe);
81
82#endif /* RXE_H */
1/*
2 * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
3 * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 */
33
34#ifndef RXE_H
35#define RXE_H
36
37#ifdef pr_fmt
38#undef pr_fmt
39#endif
40#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
41
42#include <linux/module.h>
43#include <linux/skbuff.h>
44#include <linux/crc32.h>
45
46#include <rdma/ib_verbs.h>
47#include <rdma/ib_user_verbs.h>
48#include <rdma/ib_pack.h>
49#include <rdma/ib_smi.h>
50#include <rdma/ib_umem.h>
51#include <rdma/ib_cache.h>
52#include <rdma/ib_addr.h>
53#include <crypto/hash.h>
54
55#include "rxe_net.h"
56#include "rxe_opcode.h"
57#include "rxe_hdr.h"
58#include "rxe_param.h"
59#include "rxe_verbs.h"
60#include "rxe_loc.h"
61
62/*
63 * Version 1 and Version 2 are identical on 64 bit machines, but on 32 bit
64 * machines Version 2 has a different struct layout.
65 */
66#define RXE_UVERBS_ABI_VERSION 2
67
68#define IB_PHYS_STATE_LINK_UP (5)
69#define IB_PHYS_STATE_LINK_DOWN (3)
70
71#define RXE_ROCE_V2_SPORT (0xc000)
72
73static inline u32 rxe_crc32(struct rxe_dev *rxe,
74 u32 crc, void *next, size_t len)
75{
76 u32 retval;
77 int err;
78
79 SHASH_DESC_ON_STACK(shash, rxe->tfm);
80
81 shash->tfm = rxe->tfm;
82 shash->flags = 0;
83 *(u32 *)shash_desc_ctx(shash) = crc;
84 err = crypto_shash_update(shash, next, len);
85 if (unlikely(err)) {
86 pr_warn_ratelimited("failed crc calculation, err: %d\n", err);
87 return crc32_le(crc, next, len);
88 }
89
90 retval = *(u32 *)shash_desc_ctx(shash);
91 barrier_data(shash_desc_ctx(shash));
92 return retval;
93}
94
95int rxe_set_mtu(struct rxe_dev *rxe, unsigned int dev_mtu);
96
97int rxe_add(struct rxe_dev *rxe, unsigned int mtu);
98void rxe_remove(struct rxe_dev *rxe);
99void rxe_remove_all(void);
100
101int rxe_rcv(struct sk_buff *skb);
102
103static inline void rxe_dev_put(struct rxe_dev *rxe)
104{
105 kref_put(&rxe->ref_cnt, rxe_release);
106}
107struct rxe_dev *net_to_rxe(struct net_device *ndev);
108struct rxe_dev *get_rxe_by_name(const char *name);
109
110void rxe_port_up(struct rxe_dev *rxe);
111void rxe_port_down(struct rxe_dev *rxe);
112
113#endif /* RXE_H */