2 * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
3 * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
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:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
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.
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
40 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
42 #include <linux/module.h>
43 #include <linux/skbuff.h>
44 #include <linux/crc32.h>
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>
56 #include "rxe_opcode.h"
58 #include "rxe_param.h"
59 #include "rxe_verbs.h"
61 #define RXE_UVERBS_ABI_VERSION (1)
63 #define IB_PHYS_STATE_LINK_UP (5)
64 #define IB_PHYS_STATE_LINK_DOWN (3)
66 #define RXE_ROCE_V2_SPORT (0xc000)
68 static inline u32 rxe_crc32(struct rxe_dev *rxe,
69 u32 crc, void *next, size_t len)
74 SHASH_DESC_ON_STACK(shash, rxe->tfm);
76 shash->tfm = rxe->tfm;
78 *(u32 *)shash_desc_ctx(shash) = crc;
79 err = crypto_shash_update(shash, next, len);
81 pr_warn_ratelimited("failed crc calculation, err: %d\n", err);
82 return crc32_le(crc, next, len);
85 retval = *(u32 *)shash_desc_ctx(shash);
86 barrier_data(shash_desc_ctx(shash));
90 int rxe_set_mtu(struct rxe_dev *rxe, unsigned int dev_mtu);
92 int rxe_add(struct rxe_dev *rxe, unsigned int mtu);
93 void rxe_remove(struct rxe_dev *rxe);
94 void rxe_remove_all(void);
96 int rxe_rcv(struct sk_buff *skb);
98 void rxe_dev_put(struct rxe_dev *rxe);
99 struct rxe_dev *net_to_rxe(struct net_device *ndev);
100 struct rxe_dev *get_rxe_by_name(const char* name);
102 void rxe_port_up(struct rxe_dev *rxe);
103 void rxe_port_down(struct rxe_dev *rxe);