1 /* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */
2
3 #ifndef __QPLIB_TLV_H__
4 #define __QPLIB_TLV_H__
5
6 struct roce_tlv {
7 struct tlv tlv;
8 u8 total_size; // in units of 16 byte chunks
9 u8 unused[7]; // for 16 byte alignment
10 };
11
12 #define CHUNK_SIZE 16
13 #define CHUNKS(x) (((x) + CHUNK_SIZE - 1) / CHUNK_SIZE)
14
__roce_1st_tlv_prep(struct roce_tlv * rtlv,u8 tot_chunks,u16 content_bytes,u8 flags)15 static inline void __roce_1st_tlv_prep(struct roce_tlv *rtlv, u8 tot_chunks,
16 u16 content_bytes, u8 flags)
17 {
18 rtlv->tlv.cmd_discr = cpu_to_le16(CMD_DISCR_TLV_ENCAP);
19 rtlv->tlv.tlv_type = cpu_to_le16(TLV_TYPE_ROCE_SP_COMMAND);
20 rtlv->tlv.length = cpu_to_le16(content_bytes);
21 rtlv->tlv.flags = TLV_FLAGS_REQUIRED;
22 rtlv->tlv.flags |= flags ? TLV_FLAGS_MORE : 0;
23 rtlv->total_size = (tot_chunks);
24 }
25
__roce_ext_tlv_prep(struct roce_tlv * rtlv,u16 tlv_type,u16 content_bytes,u8 more,u8 flags)26 static inline void __roce_ext_tlv_prep(struct roce_tlv *rtlv, u16 tlv_type,
27 u16 content_bytes, u8 more, u8 flags)
28 {
29 rtlv->tlv.cmd_discr = cpu_to_le16(CMD_DISCR_TLV_ENCAP);
30 rtlv->tlv.tlv_type = cpu_to_le16(tlv_type);
31 rtlv->tlv.length = cpu_to_le16(content_bytes);
32 rtlv->tlv.flags |= more ? TLV_FLAGS_MORE : 0;
33 rtlv->tlv.flags |= flags ? TLV_FLAGS_REQUIRED : 0;
34 }
35
36 /*
37 * TLV size in units of 16 byte chunks
38 */
39 #define TLV_SIZE ((sizeof(struct roce_tlv) + 15) / 16)
40 /*
41 * TLV length in bytes
42 */
43 #define TLV_BYTES (TLV_SIZE * 16)
44
45 #define HAS_TLV_HEADER(msg) (le16_to_cpu(((struct tlv *)(msg))->cmd_discr) == CMD_DISCR_TLV_ENCAP)
46 #define GET_TLV_DATA(tlv) ((void *)&((uint8_t *)(tlv))[TLV_BYTES])
47
__get_cmdq_base_opcode(struct cmdq_base * req,u32 size)48 static inline u8 __get_cmdq_base_opcode(struct cmdq_base *req, u32 size)
49 {
50 if (HAS_TLV_HEADER(req) && size > TLV_BYTES)
51 return ((struct cmdq_base *)GET_TLV_DATA(req))->opcode;
52 else
53 return req->opcode;
54 }
55
__set_cmdq_base_opcode(struct cmdq_base * req,u32 size,u8 val)56 static inline void __set_cmdq_base_opcode(struct cmdq_base *req,
57 u32 size, u8 val)
58 {
59 if (HAS_TLV_HEADER(req) && size > TLV_BYTES)
60 ((struct cmdq_base *)GET_TLV_DATA(req))->opcode = val;
61 else
62 req->opcode = val;
63 }
64
__get_cmdq_base_cookie(struct cmdq_base * req,u32 size)65 static inline __le16 __get_cmdq_base_cookie(struct cmdq_base *req, u32 size)
66 {
67 if (HAS_TLV_HEADER(req) && size > TLV_BYTES)
68 return ((struct cmdq_base *)GET_TLV_DATA(req))->cookie;
69 else
70 return req->cookie;
71 }
72
__set_cmdq_base_cookie(struct cmdq_base * req,u32 size,__le16 val)73 static inline void __set_cmdq_base_cookie(struct cmdq_base *req,
74 u32 size, __le16 val)
75 {
76 if (HAS_TLV_HEADER(req) && size > TLV_BYTES)
77 ((struct cmdq_base *)GET_TLV_DATA(req))->cookie = val;
78 else
79 req->cookie = val;
80 }
81
__get_cmdq_base_resp_addr(struct cmdq_base * req,u32 size)82 static inline __le64 __get_cmdq_base_resp_addr(struct cmdq_base *req, u32 size)
83 {
84 if (HAS_TLV_HEADER(req) && size > TLV_BYTES)
85 return ((struct cmdq_base *)GET_TLV_DATA(req))->resp_addr;
86 else
87 return req->resp_addr;
88 }
89
__set_cmdq_base_resp_addr(struct cmdq_base * req,u32 size,__le64 val)90 static inline void __set_cmdq_base_resp_addr(struct cmdq_base *req,
91 u32 size, __le64 val)
92 {
93 if (HAS_TLV_HEADER(req) && size > TLV_BYTES)
94 ((struct cmdq_base *)GET_TLV_DATA(req))->resp_addr = val;
95 else
96 req->resp_addr = val;
97 }
98
__get_cmdq_base_resp_size(struct cmdq_base * req,u32 size)99 static inline u8 __get_cmdq_base_resp_size(struct cmdq_base *req, u32 size)
100 {
101 if (HAS_TLV_HEADER(req) && size > TLV_BYTES)
102 return ((struct cmdq_base *)GET_TLV_DATA(req))->resp_size;
103 else
104 return req->resp_size;
105 }
106
__set_cmdq_base_resp_size(struct cmdq_base * req,u32 size,u8 val)107 static inline void __set_cmdq_base_resp_size(struct cmdq_base *req,
108 u32 size, u8 val)
109 {
110 if (HAS_TLV_HEADER(req) && size > TLV_BYTES)
111 ((struct cmdq_base *)GET_TLV_DATA(req))->resp_size = val;
112 else
113 req->resp_size = val;
114 }
115
__get_cmdq_base_cmd_size(struct cmdq_base * req,u32 size)116 static inline u8 __get_cmdq_base_cmd_size(struct cmdq_base *req, u32 size)
117 {
118 if (HAS_TLV_HEADER(req) && size > TLV_BYTES)
119 return ((struct roce_tlv *)(req))->total_size;
120 else
121 return req->cmd_size;
122 }
123
__set_cmdq_base_cmd_size(struct cmdq_base * req,u32 size,u8 val)124 static inline void __set_cmdq_base_cmd_size(struct cmdq_base *req,
125 u32 size, u8 val)
126 {
127 if (HAS_TLV_HEADER(req) && size > TLV_BYTES)
128 ((struct cmdq_base *)GET_TLV_DATA(req))->cmd_size = val;
129 else
130 req->cmd_size = val;
131 }
132
__get_cmdq_base_flags(struct cmdq_base * req,u32 size)133 static inline __le16 __get_cmdq_base_flags(struct cmdq_base *req, u32 size)
134 {
135 if (HAS_TLV_HEADER(req) && size > TLV_BYTES)
136 return ((struct cmdq_base *)GET_TLV_DATA(req))->flags;
137 else
138 return req->flags;
139 }
140
__set_cmdq_base_flags(struct cmdq_base * req,u32 size,__le16 val)141 static inline void __set_cmdq_base_flags(struct cmdq_base *req,
142 u32 size, __le16 val)
143 {
144 if (HAS_TLV_HEADER(req) && size > TLV_BYTES)
145 ((struct cmdq_base *)GET_TLV_DATA(req))->flags = val;
146 else
147 req->flags = val;
148 }
149
150 struct bnxt_qplib_tlv_modify_cc_req {
151 struct roce_tlv tlv_hdr;
152 struct cmdq_modify_roce_cc base_req;
153 __le64 tlvpad;
154 struct cmdq_modify_roce_cc_gen1_tlv ext_req;
155 };
156
157 struct bnxt_qplib_tlv_query_rcc_sb {
158 struct roce_tlv tlv_hdr;
159 struct creq_query_roce_cc_resp_sb base_sb;
160 struct creq_query_roce_cc_gen1_resp_sb_tlv gen1_sb;
161 };
162 #endif /* __QPLIB_TLV_H__ */
163