1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
4*4882a593Smuzhiyun * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #ifndef RXE_H
8*4882a593Smuzhiyun #define RXE_H
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #ifdef pr_fmt
11*4882a593Smuzhiyun #undef pr_fmt
12*4882a593Smuzhiyun #endif
13*4882a593Smuzhiyun #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #include <linux/module.h>
16*4882a593Smuzhiyun #include <linux/skbuff.h>
17*4882a593Smuzhiyun #include <linux/crc32.h>
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun #include <rdma/ib_verbs.h>
20*4882a593Smuzhiyun #include <rdma/ib_user_verbs.h>
21*4882a593Smuzhiyun #include <rdma/ib_pack.h>
22*4882a593Smuzhiyun #include <rdma/ib_smi.h>
23*4882a593Smuzhiyun #include <rdma/ib_umem.h>
24*4882a593Smuzhiyun #include <rdma/ib_cache.h>
25*4882a593Smuzhiyun #include <rdma/ib_addr.h>
26*4882a593Smuzhiyun #include <crypto/hash.h>
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun #include "rxe_net.h"
29*4882a593Smuzhiyun #include "rxe_opcode.h"
30*4882a593Smuzhiyun #include "rxe_hdr.h"
31*4882a593Smuzhiyun #include "rxe_param.h"
32*4882a593Smuzhiyun #include "rxe_verbs.h"
33*4882a593Smuzhiyun #include "rxe_loc.h"
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun /*
36*4882a593Smuzhiyun * Version 1 and Version 2 are identical on 64 bit machines, but on 32 bit
37*4882a593Smuzhiyun * machines Version 2 has a different struct layout.
38*4882a593Smuzhiyun */
39*4882a593Smuzhiyun #define RXE_UVERBS_ABI_VERSION 2
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun #define RXE_ROCE_V2_SPORT (0xc000)
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun extern bool rxe_initialized;
44*4882a593Smuzhiyun
rxe_crc32(struct rxe_dev * rxe,u32 crc,void * next,size_t len)45*4882a593Smuzhiyun static inline u32 rxe_crc32(struct rxe_dev *rxe,
46*4882a593Smuzhiyun u32 crc, void *next, size_t len)
47*4882a593Smuzhiyun {
48*4882a593Smuzhiyun u32 retval;
49*4882a593Smuzhiyun int err;
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun SHASH_DESC_ON_STACK(shash, rxe->tfm);
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun shash->tfm = rxe->tfm;
54*4882a593Smuzhiyun *(u32 *)shash_desc_ctx(shash) = crc;
55*4882a593Smuzhiyun err = crypto_shash_update(shash, next, len);
56*4882a593Smuzhiyun if (unlikely(err)) {
57*4882a593Smuzhiyun pr_warn_ratelimited("failed crc calculation, err: %d\n", err);
58*4882a593Smuzhiyun return crc32_le(crc, next, len);
59*4882a593Smuzhiyun }
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun retval = *(u32 *)shash_desc_ctx(shash);
62*4882a593Smuzhiyun barrier_data(shash_desc_ctx(shash));
63*4882a593Smuzhiyun return retval;
64*4882a593Smuzhiyun }
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun void rxe_set_mtu(struct rxe_dev *rxe, unsigned int dev_mtu);
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun int rxe_add(struct rxe_dev *rxe, unsigned int mtu, const char *ibdev_name);
69*4882a593Smuzhiyun
70*4882a593Smuzhiyun void rxe_rcv(struct sk_buff *skb);
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun /* The caller must do a matching ib_device_put(&dev->ib_dev) */
rxe_get_dev_from_net(struct net_device * ndev)73*4882a593Smuzhiyun static inline struct rxe_dev *rxe_get_dev_from_net(struct net_device *ndev)
74*4882a593Smuzhiyun {
75*4882a593Smuzhiyun struct ib_device *ibdev =
76*4882a593Smuzhiyun ib_device_get_by_netdev(ndev, RDMA_DRIVER_RXE);
77*4882a593Smuzhiyun
78*4882a593Smuzhiyun if (!ibdev)
79*4882a593Smuzhiyun return NULL;
80*4882a593Smuzhiyun return container_of(ibdev, struct rxe_dev, ib_dev);
81*4882a593Smuzhiyun }
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun void rxe_port_up(struct rxe_dev *rxe);
84*4882a593Smuzhiyun void rxe_port_down(struct rxe_dev *rxe);
85*4882a593Smuzhiyun void rxe_set_port_state(struct rxe_dev *rxe);
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun #endif /* RXE_H */
88