1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2 /*
3 * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
4 * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
5 */
6
7 #ifndef RXE_H
8 #define RXE_H
9
10 #ifdef pr_fmt
11 #undef pr_fmt
12 #endif
13 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
14
15 #include <linux/skbuff.h>
16
17 #include <rdma/ib_verbs.h>
18 #include <rdma/ib_user_verbs.h>
19 #include <rdma/ib_pack.h>
20 #include <rdma/ib_smi.h>
21 #include <rdma/ib_umem.h>
22 #include <rdma/ib_cache.h>
23 #include <rdma/ib_addr.h>
24 #include <crypto/hash.h>
25
26 #include "rxe_net.h"
27 #include "rxe_opcode.h"
28 #include "rxe_hdr.h"
29 #include "rxe_param.h"
30 #include "rxe_verbs.h"
31 #include "rxe_loc.h"
32
33 /*
34 * Version 1 and Version 2 are identical on 64 bit machines, but on 32 bit
35 * machines Version 2 has a different struct layout.
36 */
37 #define RXE_UVERBS_ABI_VERSION 2
38
39 #define RXE_ROCE_V2_SPORT (0xc000)
40
41 #define rxe_dbg(rxe, fmt, ...) ibdev_dbg(&(rxe)->ib_dev, \
42 "%s: " fmt, __func__, ##__VA_ARGS__)
43 #define rxe_dbg_uc(uc, fmt, ...) ibdev_dbg((uc)->ibuc.device, \
44 "uc#%d %s: " fmt, (uc)->elem.index, __func__, ##__VA_ARGS__)
45 #define rxe_dbg_pd(pd, fmt, ...) ibdev_dbg((pd)->ibpd.device, \
46 "pd#%d %s: " fmt, (pd)->elem.index, __func__, ##__VA_ARGS__)
47 #define rxe_dbg_ah(ah, fmt, ...) ibdev_dbg((ah)->ibah.device, \
48 "ah#%d %s: " fmt, (ah)->elem.index, __func__, ##__VA_ARGS__)
49 #define rxe_dbg_srq(srq, fmt, ...) ibdev_dbg((srq)->ibsrq.device, \
50 "srq#%d %s: " fmt, (srq)->elem.index, __func__, ##__VA_ARGS__)
51 #define rxe_dbg_qp(qp, fmt, ...) ibdev_dbg((qp)->ibqp.device, \
52 "qp#%d %s: " fmt, (qp)->elem.index, __func__, ##__VA_ARGS__)
53 #define rxe_dbg_cq(cq, fmt, ...) ibdev_dbg((cq)->ibcq.device, \
54 "cq#%d %s: " fmt, (cq)->elem.index, __func__, ##__VA_ARGS__)
55 #define rxe_dbg_mr(mr, fmt, ...) ibdev_dbg((mr)->ibmr.device, \
56 "mr#%d %s: " fmt, (mr)->elem.index, __func__, ##__VA_ARGS__)
57 #define rxe_dbg_mw(mw, fmt, ...) ibdev_dbg((mw)->ibmw.device, \
58 "mw#%d %s: " fmt, (mw)->elem.index, __func__, ##__VA_ARGS__)
59
60 /* responder states */
61 enum resp_states {
62 RESPST_NONE,
63 RESPST_GET_REQ,
64 RESPST_CHK_PSN,
65 RESPST_CHK_OP_SEQ,
66 RESPST_CHK_OP_VALID,
67 RESPST_CHK_RESOURCE,
68 RESPST_CHK_LENGTH,
69 RESPST_CHK_RKEY,
70 RESPST_EXECUTE,
71 RESPST_READ_REPLY,
72 RESPST_ATOMIC_REPLY,
73 RESPST_ATOMIC_WRITE_REPLY,
74 RESPST_PROCESS_FLUSH,
75 RESPST_COMPLETE,
76 RESPST_ACKNOWLEDGE,
77 RESPST_CLEANUP,
78 RESPST_DUPLICATE_REQUEST,
79 RESPST_ERR_MALFORMED_WQE,
80 RESPST_ERR_UNSUPPORTED_OPCODE,
81 RESPST_ERR_MISALIGNED_ATOMIC,
82 RESPST_ERR_PSN_OUT_OF_SEQ,
83 RESPST_ERR_MISSING_OPCODE_FIRST,
84 RESPST_ERR_MISSING_OPCODE_LAST_C,
85 RESPST_ERR_MISSING_OPCODE_LAST_D1E,
86 RESPST_ERR_TOO_MANY_RDMA_ATM_REQ,
87 RESPST_ERR_RNR,
88 RESPST_ERR_RKEY_VIOLATION,
89 RESPST_ERR_INVALIDATE_RKEY,
90 RESPST_ERR_LENGTH,
91 RESPST_ERR_CQ_OVERFLOW,
92 RESPST_ERROR,
93 RESPST_RESET,
94 RESPST_DONE,
95 RESPST_EXIT,
96 };
97
98 void rxe_set_mtu(struct rxe_dev *rxe, unsigned int dev_mtu);
99
100 int rxe_add(struct rxe_dev *rxe, unsigned int mtu, const char *ibdev_name);
101
102 void rxe_rcv(struct sk_buff *skb);
103
104 /* The caller must do a matching ib_device_put(&dev->ib_dev) */
rxe_get_dev_from_net(struct net_device * ndev)105 static inline struct rxe_dev *rxe_get_dev_from_net(struct net_device *ndev)
106 {
107 struct ib_device *ibdev =
108 ib_device_get_by_netdev(ndev, RDMA_DRIVER_RXE);
109
110 if (!ibdev)
111 return NULL;
112 return container_of(ibdev, struct rxe_dev, ib_dev);
113 }
114
115 void rxe_port_up(struct rxe_dev *rxe);
116 void rxe_port_down(struct rxe_dev *rxe);
117 void rxe_set_port_state(struct rxe_dev *rxe);
118
119 #endif /* RXE_H */
120