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5a1c269f LG |
1 | /* |
2 | * Microsemi Switchtec PCIe Driver | |
3 | * Copyright (c) 2017, Microsemi Corporation | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms and conditions of the GNU General Public License, | |
7 | * version 2, as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope 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 | */ | |
15 | ||
16 | #ifndef _SWITCHTEC_H | |
17 | #define _SWITCHTEC_H | |
18 | ||
19 | #include <linux/pci.h> | |
20 | #include <linux/cdev.h> | |
21 | ||
22 | #define MICROSEMI_VENDOR_ID 0x11f8 | |
23 | #define MICROSEMI_NTB_CLASSCODE 0x068000 | |
24 | #define MICROSEMI_MGMT_CLASSCODE 0x058000 | |
25 | ||
26 | #define SWITCHTEC_MRPC_PAYLOAD_SIZE 1024 | |
27 | #define SWITCHTEC_MAX_PFF_CSR 48 | |
28 | ||
29 | #define SWITCHTEC_EVENT_OCCURRED BIT(0) | |
30 | #define SWITCHTEC_EVENT_CLEAR BIT(0) | |
31 | #define SWITCHTEC_EVENT_EN_LOG BIT(1) | |
32 | #define SWITCHTEC_EVENT_EN_CLI BIT(2) | |
33 | #define SWITCHTEC_EVENT_EN_IRQ BIT(3) | |
34 | #define SWITCHTEC_EVENT_FATAL BIT(4) | |
35 | ||
36 | enum { | |
37 | SWITCHTEC_GAS_MRPC_OFFSET = 0x0000, | |
38 | SWITCHTEC_GAS_TOP_CFG_OFFSET = 0x1000, | |
39 | SWITCHTEC_GAS_SW_EVENT_OFFSET = 0x1800, | |
40 | SWITCHTEC_GAS_SYS_INFO_OFFSET = 0x2000, | |
41 | SWITCHTEC_GAS_FLASH_INFO_OFFSET = 0x2200, | |
42 | SWITCHTEC_GAS_PART_CFG_OFFSET = 0x4000, | |
43 | SWITCHTEC_GAS_NTB_OFFSET = 0x10000, | |
44 | SWITCHTEC_GAS_PFF_CSR_OFFSET = 0x134000, | |
45 | }; | |
46 | ||
47 | struct mrpc_regs { | |
48 | u8 input_data[SWITCHTEC_MRPC_PAYLOAD_SIZE]; | |
49 | u8 output_data[SWITCHTEC_MRPC_PAYLOAD_SIZE]; | |
50 | u32 cmd; | |
51 | u32 status; | |
52 | u32 ret_value; | |
53 | } __packed; | |
54 | ||
55 | enum mrpc_status { | |
56 | SWITCHTEC_MRPC_STATUS_INPROGRESS = 1, | |
57 | SWITCHTEC_MRPC_STATUS_DONE = 2, | |
58 | SWITCHTEC_MRPC_STATUS_ERROR = 0xFF, | |
59 | SWITCHTEC_MRPC_STATUS_INTERRUPTED = 0x100, | |
60 | }; | |
61 | ||
62 | struct sw_event_regs { | |
63 | u64 event_report_ctrl; | |
64 | u64 reserved1; | |
65 | u64 part_event_bitmap; | |
66 | u64 reserved2; | |
67 | u32 global_summary; | |
68 | u32 reserved3[3]; | |
69 | u32 stack_error_event_hdr; | |
70 | u32 stack_error_event_data; | |
71 | u32 reserved4[4]; | |
72 | u32 ppu_error_event_hdr; | |
73 | u32 ppu_error_event_data; | |
74 | u32 reserved5[4]; | |
75 | u32 isp_error_event_hdr; | |
76 | u32 isp_error_event_data; | |
77 | u32 reserved6[4]; | |
78 | u32 sys_reset_event_hdr; | |
79 | u32 reserved7[5]; | |
80 | u32 fw_exception_hdr; | |
81 | u32 reserved8[5]; | |
82 | u32 fw_nmi_hdr; | |
83 | u32 reserved9[5]; | |
84 | u32 fw_non_fatal_hdr; | |
85 | u32 reserved10[5]; | |
86 | u32 fw_fatal_hdr; | |
87 | u32 reserved11[5]; | |
88 | u32 twi_mrpc_comp_hdr; | |
89 | u32 twi_mrpc_comp_data; | |
90 | u32 reserved12[4]; | |
91 | u32 twi_mrpc_comp_async_hdr; | |
92 | u32 twi_mrpc_comp_async_data; | |
93 | u32 reserved13[4]; | |
94 | u32 cli_mrpc_comp_hdr; | |
95 | u32 cli_mrpc_comp_data; | |
96 | u32 reserved14[4]; | |
97 | u32 cli_mrpc_comp_async_hdr; | |
98 | u32 cli_mrpc_comp_async_data; | |
99 | u32 reserved15[4]; | |
100 | u32 gpio_interrupt_hdr; | |
101 | u32 gpio_interrupt_data; | |
102 | u32 reserved16[4]; | |
103 | } __packed; | |
104 | ||
105 | enum { | |
106 | SWITCHTEC_CFG0_RUNNING = 0x04, | |
107 | SWITCHTEC_CFG1_RUNNING = 0x05, | |
108 | SWITCHTEC_IMG0_RUNNING = 0x03, | |
109 | SWITCHTEC_IMG1_RUNNING = 0x07, | |
110 | }; | |
111 | ||
112 | struct sys_info_regs { | |
113 | u32 device_id; | |
114 | u32 device_version; | |
115 | u32 firmware_version; | |
116 | u32 reserved1; | |
117 | u32 vendor_table_revision; | |
118 | u32 table_format_version; | |
119 | u32 partition_id; | |
120 | u32 cfg_file_fmt_version; | |
121 | u16 cfg_running; | |
122 | u16 img_running; | |
123 | u32 reserved2[57]; | |
124 | char vendor_id[8]; | |
125 | char product_id[16]; | |
126 | char product_revision[4]; | |
127 | char component_vendor[8]; | |
128 | u16 component_id; | |
129 | u8 component_revision; | |
130 | } __packed; | |
131 | ||
132 | struct flash_info_regs { | |
133 | u32 flash_part_map_upd_idx; | |
134 | ||
135 | struct active_partition_info { | |
136 | u32 address; | |
137 | u32 build_version; | |
138 | u32 build_string; | |
139 | } active_img; | |
140 | ||
141 | struct active_partition_info active_cfg; | |
142 | struct active_partition_info inactive_img; | |
143 | struct active_partition_info inactive_cfg; | |
144 | ||
145 | u32 flash_length; | |
146 | ||
147 | struct partition_info { | |
148 | u32 address; | |
149 | u32 length; | |
150 | } cfg0; | |
151 | ||
152 | struct partition_info cfg1; | |
153 | struct partition_info img0; | |
154 | struct partition_info img1; | |
155 | struct partition_info nvlog; | |
156 | struct partition_info vendor[8]; | |
157 | }; | |
158 | ||
159 | struct ntb_info_regs { | |
160 | u8 partition_count; | |
161 | u8 partition_id; | |
162 | u16 reserved1; | |
163 | u64 ep_map; | |
164 | u16 requester_id; | |
165 | } __packed; | |
166 | ||
167 | struct part_cfg_regs { | |
168 | u32 status; | |
169 | u32 state; | |
170 | u32 port_cnt; | |
171 | u32 usp_port_mode; | |
172 | u32 usp_pff_inst_id; | |
173 | u32 vep_pff_inst_id; | |
174 | u32 dsp_pff_inst_id[47]; | |
175 | u32 reserved1[11]; | |
176 | u16 vep_vector_number; | |
177 | u16 usp_vector_number; | |
178 | u32 port_event_bitmap; | |
179 | u32 reserved2[3]; | |
180 | u32 part_event_summary; | |
181 | u32 reserved3[3]; | |
182 | u32 part_reset_hdr; | |
183 | u32 part_reset_data[5]; | |
184 | u32 mrpc_comp_hdr; | |
185 | u32 mrpc_comp_data[5]; | |
186 | u32 mrpc_comp_async_hdr; | |
187 | u32 mrpc_comp_async_data[5]; | |
188 | u32 dyn_binding_hdr; | |
189 | u32 dyn_binding_data[5]; | |
190 | u32 reserved4[159]; | |
191 | } __packed; | |
192 | ||
193 | enum { | |
194 | SWITCHTEC_PART_CFG_EVENT_RESET = 1 << 0, | |
195 | SWITCHTEC_PART_CFG_EVENT_MRPC_CMP = 1 << 1, | |
196 | SWITCHTEC_PART_CFG_EVENT_MRPC_ASYNC_CMP = 1 << 2, | |
197 | SWITCHTEC_PART_CFG_EVENT_DYN_PART_CMP = 1 << 3, | |
198 | }; | |
199 | ||
200 | struct pff_csr_regs { | |
201 | u16 vendor_id; | |
202 | u16 device_id; | |
203 | u32 pci_cfg_header[15]; | |
204 | u32 pci_cap_region[48]; | |
205 | u32 pcie_cap_region[448]; | |
206 | u32 indirect_gas_window[128]; | |
207 | u32 indirect_gas_window_off; | |
208 | u32 reserved[127]; | |
209 | u32 pff_event_summary; | |
210 | u32 reserved2[3]; | |
211 | u32 aer_in_p2p_hdr; | |
212 | u32 aer_in_p2p_data[5]; | |
213 | u32 aer_in_vep_hdr; | |
214 | u32 aer_in_vep_data[5]; | |
215 | u32 dpc_hdr; | |
216 | u32 dpc_data[5]; | |
217 | u32 cts_hdr; | |
218 | u32 cts_data[5]; | |
219 | u32 reserved3[6]; | |
220 | u32 hotplug_hdr; | |
221 | u32 hotplug_data[5]; | |
222 | u32 ier_hdr; | |
223 | u32 ier_data[5]; | |
224 | u32 threshold_hdr; | |
225 | u32 threshold_data[5]; | |
226 | u32 power_mgmt_hdr; | |
227 | u32 power_mgmt_data[5]; | |
228 | u32 tlp_throttling_hdr; | |
229 | u32 tlp_throttling_data[5]; | |
230 | u32 force_speed_hdr; | |
231 | u32 force_speed_data[5]; | |
232 | u32 credit_timeout_hdr; | |
233 | u32 credit_timeout_data[5]; | |
234 | u32 link_state_hdr; | |
235 | u32 link_state_data[5]; | |
236 | u32 reserved4[174]; | |
237 | } __packed; | |
238 | ||
239 | struct switchtec_dev { | |
240 | struct pci_dev *pdev; | |
241 | struct device dev; | |
242 | struct cdev cdev; | |
243 | ||
244 | int partition; | |
245 | int partition_count; | |
246 | int pff_csr_count; | |
247 | char pff_local[SWITCHTEC_MAX_PFF_CSR]; | |
248 | ||
249 | void __iomem *mmio; | |
250 | struct mrpc_regs __iomem *mmio_mrpc; | |
251 | struct sw_event_regs __iomem *mmio_sw_event; | |
252 | struct sys_info_regs __iomem *mmio_sys_info; | |
253 | struct flash_info_regs __iomem *mmio_flash_info; | |
254 | struct ntb_info_regs __iomem *mmio_ntb; | |
255 | struct part_cfg_regs __iomem *mmio_part_cfg; | |
256 | struct part_cfg_regs __iomem *mmio_part_cfg_all; | |
257 | struct pff_csr_regs __iomem *mmio_pff_csr; | |
258 | ||
259 | /* | |
260 | * The mrpc mutex must be held when accessing the other | |
261 | * mrpc_ fields, alive flag and stuser->state field | |
262 | */ | |
263 | struct mutex mrpc_mutex; | |
264 | struct list_head mrpc_queue; | |
265 | int mrpc_busy; | |
266 | struct work_struct mrpc_work; | |
267 | struct delayed_work mrpc_timeout; | |
268 | bool alive; | |
269 | ||
270 | wait_queue_head_t event_wq; | |
271 | atomic_t event_cnt; | |
272 | }; | |
273 | ||
274 | static inline struct switchtec_dev *to_stdev(struct device *dev) | |
275 | { | |
276 | return container_of(dev, struct switchtec_dev, dev); | |
277 | } | |
278 | ||
279 | #endif |