tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright(c) 2004 - 2009 Intel Corporation. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the Free
6 * Software Foundation; either version 2 of the License, or (at your option)
7 * any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc., 59
16 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called COPYING.
20 */
21#ifndef _IOAT_HW_H_
22#define _IOAT_HW_H_
23
24/* PCI Configuration Space Values */
25#define IOAT_MMIO_BAR 0
26
27/* CB device ID's */
28#define IOAT_PCI_DID_5000 0x1A38
29#define IOAT_PCI_DID_CNB 0x360B
30#define IOAT_PCI_DID_SCNB 0x65FF
31#define IOAT_PCI_DID_SNB 0x402F
32
33#define PCI_DEVICE_ID_INTEL_IOAT_IVB0 0x0e20
34#define PCI_DEVICE_ID_INTEL_IOAT_IVB1 0x0e21
35#define PCI_DEVICE_ID_INTEL_IOAT_IVB2 0x0e22
36#define PCI_DEVICE_ID_INTEL_IOAT_IVB3 0x0e23
37#define PCI_DEVICE_ID_INTEL_IOAT_IVB4 0x0e24
38#define PCI_DEVICE_ID_INTEL_IOAT_IVB5 0x0e25
39#define PCI_DEVICE_ID_INTEL_IOAT_IVB6 0x0e26
40#define PCI_DEVICE_ID_INTEL_IOAT_IVB7 0x0e27
41#define PCI_DEVICE_ID_INTEL_IOAT_IVB8 0x0e2e
42#define PCI_DEVICE_ID_INTEL_IOAT_IVB9 0x0e2f
43
44#define PCI_DEVICE_ID_INTEL_IOAT_HSW0 0x2f20
45#define PCI_DEVICE_ID_INTEL_IOAT_HSW1 0x2f21
46#define PCI_DEVICE_ID_INTEL_IOAT_HSW2 0x2f22
47#define PCI_DEVICE_ID_INTEL_IOAT_HSW3 0x2f23
48#define PCI_DEVICE_ID_INTEL_IOAT_HSW4 0x2f24
49#define PCI_DEVICE_ID_INTEL_IOAT_HSW5 0x2f25
50#define PCI_DEVICE_ID_INTEL_IOAT_HSW6 0x2f26
51#define PCI_DEVICE_ID_INTEL_IOAT_HSW7 0x2f27
52#define PCI_DEVICE_ID_INTEL_IOAT_HSW8 0x2f2e
53#define PCI_DEVICE_ID_INTEL_IOAT_HSW9 0x2f2f
54
55#define PCI_DEVICE_ID_INTEL_IOAT_BWD0 0x0C50
56#define PCI_DEVICE_ID_INTEL_IOAT_BWD1 0x0C51
57#define PCI_DEVICE_ID_INTEL_IOAT_BWD2 0x0C52
58#define PCI_DEVICE_ID_INTEL_IOAT_BWD3 0x0C53
59
60#define IOAT_VER_1_2 0x12 /* Version 1.2 */
61#define IOAT_VER_2_0 0x20 /* Version 2.0 */
62#define IOAT_VER_3_0 0x30 /* Version 3.0 */
63#define IOAT_VER_3_2 0x32 /* Version 3.2 */
64#define IOAT_VER_3_3 0x33 /* Version 3.3 */
65
66
67int system_has_dca_enabled(struct pci_dev *pdev);
68
69struct ioat_dma_descriptor {
70 uint32_t size;
71 union {
72 uint32_t ctl;
73 struct {
74 unsigned int int_en:1;
75 unsigned int src_snoop_dis:1;
76 unsigned int dest_snoop_dis:1;
77 unsigned int compl_write:1;
78 unsigned int fence:1;
79 unsigned int null:1;
80 unsigned int src_brk:1;
81 unsigned int dest_brk:1;
82 unsigned int bundle:1;
83 unsigned int dest_dca:1;
84 unsigned int hint:1;
85 unsigned int rsvd2:13;
86 #define IOAT_OP_COPY 0x00
87 unsigned int op:8;
88 } ctl_f;
89 };
90 uint64_t src_addr;
91 uint64_t dst_addr;
92 uint64_t next;
93 uint64_t rsv1;
94 uint64_t rsv2;
95 /* store some driver data in an unused portion of the descriptor */
96 union {
97 uint64_t user1;
98 uint64_t tx_cnt;
99 };
100 uint64_t user2;
101};
102
103struct ioat_xor_descriptor {
104 uint32_t size;
105 union {
106 uint32_t ctl;
107 struct {
108 unsigned int int_en:1;
109 unsigned int src_snoop_dis:1;
110 unsigned int dest_snoop_dis:1;
111 unsigned int compl_write:1;
112 unsigned int fence:1;
113 unsigned int src_cnt:3;
114 unsigned int bundle:1;
115 unsigned int dest_dca:1;
116 unsigned int hint:1;
117 unsigned int rsvd:13;
118 #define IOAT_OP_XOR 0x87
119 #define IOAT_OP_XOR_VAL 0x88
120 unsigned int op:8;
121 } ctl_f;
122 };
123 uint64_t src_addr;
124 uint64_t dst_addr;
125 uint64_t next;
126 uint64_t src_addr2;
127 uint64_t src_addr3;
128 uint64_t src_addr4;
129 uint64_t src_addr5;
130};
131
132struct ioat_xor_ext_descriptor {
133 uint64_t src_addr6;
134 uint64_t src_addr7;
135 uint64_t src_addr8;
136 uint64_t next;
137 uint64_t rsvd[4];
138};
139
140struct ioat_pq_descriptor {
141 union {
142 uint32_t size;
143 uint32_t dwbes;
144 struct {
145 unsigned int rsvd:25;
146 unsigned int p_val_err:1;
147 unsigned int q_val_err:1;
148 unsigned int rsvd1:4;
149 unsigned int wbes:1;
150 } dwbes_f;
151 };
152 union {
153 uint32_t ctl;
154 struct {
155 unsigned int int_en:1;
156 unsigned int src_snoop_dis:1;
157 unsigned int dest_snoop_dis:1;
158 unsigned int compl_write:1;
159 unsigned int fence:1;
160 unsigned int src_cnt:3;
161 unsigned int bundle:1;
162 unsigned int dest_dca:1;
163 unsigned int hint:1;
164 unsigned int p_disable:1;
165 unsigned int q_disable:1;
166 unsigned int rsvd2:2;
167 unsigned int wb_en:1;
168 unsigned int prl_en:1;
169 unsigned int rsvd3:7;
170 #define IOAT_OP_PQ 0x89
171 #define IOAT_OP_PQ_VAL 0x8a
172 #define IOAT_OP_PQ_16S 0xa0
173 #define IOAT_OP_PQ_VAL_16S 0xa1
174 unsigned int op:8;
175 } ctl_f;
176 };
177 uint64_t src_addr;
178 uint64_t p_addr;
179 uint64_t next;
180 uint64_t src_addr2;
181 union {
182 uint64_t src_addr3;
183 uint64_t sed_addr;
184 };
185 uint8_t coef[8];
186 uint64_t q_addr;
187};
188
189struct ioat_pq_ext_descriptor {
190 uint64_t src_addr4;
191 uint64_t src_addr5;
192 uint64_t src_addr6;
193 uint64_t next;
194 uint64_t src_addr7;
195 uint64_t src_addr8;
196 uint64_t rsvd[2];
197};
198
199struct ioat_pq_update_descriptor {
200 uint32_t size;
201 union {
202 uint32_t ctl;
203 struct {
204 unsigned int int_en:1;
205 unsigned int src_snoop_dis:1;
206 unsigned int dest_snoop_dis:1;
207 unsigned int compl_write:1;
208 unsigned int fence:1;
209 unsigned int src_cnt:3;
210 unsigned int bundle:1;
211 unsigned int dest_dca:1;
212 unsigned int hint:1;
213 unsigned int p_disable:1;
214 unsigned int q_disable:1;
215 unsigned int rsvd:3;
216 unsigned int coef:8;
217 #define IOAT_OP_PQ_UP 0x8b
218 unsigned int op:8;
219 } ctl_f;
220 };
221 uint64_t src_addr;
222 uint64_t p_addr;
223 uint64_t next;
224 uint64_t src_addr2;
225 uint64_t p_src;
226 uint64_t q_src;
227 uint64_t q_addr;
228};
229
230struct ioat_raw_descriptor {
231 uint64_t field[8];
232};
233
234struct ioat_pq16a_descriptor {
235 uint8_t coef[8];
236 uint64_t src_addr3;
237 uint64_t src_addr4;
238 uint64_t src_addr5;
239 uint64_t src_addr6;
240 uint64_t src_addr7;
241 uint64_t src_addr8;
242 uint64_t src_addr9;
243};
244
245struct ioat_pq16b_descriptor {
246 uint64_t src_addr10;
247 uint64_t src_addr11;
248 uint64_t src_addr12;
249 uint64_t src_addr13;
250 uint64_t src_addr14;
251 uint64_t src_addr15;
252 uint64_t src_addr16;
253 uint64_t rsvd;
254};
255
256union ioat_sed_pq_descriptor {
257 struct ioat_pq16a_descriptor a;
258 struct ioat_pq16b_descriptor b;
259};
260
261#define SED_SIZE 64
262
263struct ioat_sed_raw_descriptor {
264 uint64_t a[8];
265 uint64_t b[8];
266 uint64_t c[8];
267};
268
269#endif