1 /* $NetBSD: octeon_pkovar.h,v 1.6 2020/06/23 05:15:33 simonb Exp $ */
2
3 /*
4 * Copyright (c) 2007 Internet Initiative Japan, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 /*
30 * PKO Registers
31 */
32
33 #ifndef _OCTEON_PKOVAR_H_
34 #define _OCTEON_PKOVAR_H_
35
36 #include <mips/cavium/dev/octeon_fauvar.h>
37 #include <mips/cavium/dev/octeon_pkoreg.h>
38
39 #define FAU_OP_SIZE_8 0
40 #define FAU_OP_SIZE_16 1
41 #define FAU_OP_SIZE_32 2
42 #define FAU_OP_SIZE_64 3
43
44 #define PKO_OUTPUT_PORTS_NUM 5
45 #define PKO_OUTPUT_PORTS_PKTIF_NUM 3
46 #define PKO_OUTPUT_PORTS_PCIIF_NUM 2
47 #define PKO_MEM_QUEUE_PTRS_ILLEGAL_PID 63
48
49 /* XXX */
50 struct octpko_cmdptr_desc {
51 uint64_t cmdptr;
52 uint64_t cmdptr_idx;
53 };
54
55 /* XXX */
56 struct octpko_softc {
57 int sc_port;
58 bus_space_tag_t sc_regt;
59 bus_space_handle_t sc_regh;
60 struct octpko_cmdptr_desc
61 *sc_cmdptr;
62 int sc_cmd_buf_pool;
63 size_t sc_cmd_buf_size;
64 };
65
66 /* XXX */
67 struct octpko_attach_args {
68 int aa_port;
69 bus_space_tag_t aa_regt;
70 struct octpko_cmdptr_desc *aa_cmdptr;
71 int aa_cmd_buf_pool;
72 size_t aa_cmd_buf_size;
73 };
74
75 /* XXX */
76 void octpko_init(struct octpko_attach_args *,
77 struct octpko_softc **);
78 int octpko_enable(struct octpko_softc *);
79 int octpko_reset(struct octpko_softc *);
80 void octpko_config(struct octpko_softc *);
81 int octpko_port_enable(struct octpko_softc *, int);
82 int octpko_port_config(struct octpko_softc *);
83 void octpko_int_enable(struct octpko_softc *, int);
84 uint64_t octpko_int_summary(struct octpko_softc *);
85 static __inline uint64_t octpko_cmd_word0(int, int, int, int, int, int,
86 int, int, int, int, int, int, int, int, int, int);
87 static __inline uint64_t octpko_cmd_word1(int, int, int, int, paddr_t);
88
89
90 static __inline uint64_t
octpko_cmd_word0(int sz1,int sz0,int s1,int reg1,int s0,int reg0,int le,int n2,int q,int r,int g,int ipoffp1,int ii,int df,int segs,int totalbytes)91 octpko_cmd_word0(int sz1, int sz0, int s1, int reg1, int s0, int reg0,
92 int le, int n2, int q, int r, int g, int ipoffp1, int ii, int df, int segs,
93 int totalbytes)
94 {
95 uint64_t cmd =
96 __SHIFTIN(sz1, PKO_CMD_WORD0_SZ1) |
97 __SHIFTIN(sz0, PKO_CMD_WORD0_SZ0) |
98 __SHIFTIN(s1, PKO_CMD_WORD0_S1) |
99 __SHIFTIN(reg1, PKO_CMD_WORD0_REG1) |
100 __SHIFTIN(s0, PKO_CMD_WORD0_S0) |
101 __SHIFTIN(reg0, PKO_CMD_WORD0_REG0) |
102 __SHIFTIN(le, PKO_CMD_WORD0_LE) |
103 __SHIFTIN(n2, PKO_CMD_WORD0_N2) |
104 __SHIFTIN(q, PKO_CMD_WORD0_Q) |
105 __SHIFTIN(r, PKO_CMD_WORD0_R) |
106 __SHIFTIN(g, PKO_CMD_WORD0_G) |
107 __SHIFTIN(ipoffp1, PKO_CMD_WORD0_IPOFFP1) |
108 __SHIFTIN(ii, PKO_CMD_WORD0_II) |
109 __SHIFTIN(df, PKO_CMD_WORD0_DF) |
110 __SHIFTIN(segs, PKO_CMD_WORD0_SEGS) |
111 __SHIFTIN(totalbytes, PKO_CMD_WORD0_TOTALBYTES);
112
113 return cmd;
114 }
115
116 static __inline uint64_t
octpko_cmd_word1(int i,int back,int pool,int size,paddr_t addr)117 octpko_cmd_word1(int i, int back, int pool, int size, paddr_t addr)
118 {
119 uint64_t cmd =
120 __SHIFTIN(i, PKO_CMD_WORD1_I) |
121 __SHIFTIN(back, PKO_CMD_WORD1_BACK) |
122 __SHIFTIN(pool, PKO_CMD_WORD1_POOL) |
123 __SHIFTIN(size, PKO_CMD_WORD1_SIZE) |
124 __SHIFTIN(addr, PKO_CMD_WORD1_ADDR);
125
126 return cmd;
127 }
128
129 /* ---- operation primitives */
130
131 /* Store Operations */
132
133 static __inline void
octpko_op_store(uint64_t args,uint64_t value)134 octpko_op_store(uint64_t args, uint64_t value)
135 {
136 paddr_t addr;
137
138 addr = OCTEON_ADDR_IO_DID(PKO_MAJOR_DID, PKO_SUB_DID) | args;
139 /* XXX */
140 OCTEON_SYNCW;
141 octeon_xkphys_write_8(addr, value);
142 }
143
144 static __inline void
octpko_op_doorbell_write(int pid,int qid,int wdc)145 octpko_op_doorbell_write(int pid, int qid, int wdc)
146 {
147 uint64_t args, value;
148
149 args =
150 __SHIFTIN(pid, PKO_DOORBELL_WRITE_PID) |
151 __SHIFTIN(qid, PKO_DOORBELL_WRITE_QID);
152 value = __SHIFTIN(wdc, PKO_DOORBELL_WRITE_WDC);
153 octpko_op_store(args, value);
154 }
155
156 #endif /* _OCTEON_PKOVAR_H_ */
157