projects/linux·blob v5.17-rc4 · refs

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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Microsemi Switchtec PCIe Driver
4 * Copyright (c) 2017, Microsemi Corporation
5 */
6
7#ifndef _SWITCHTEC_H
8#define _SWITCHTEC_H
9
10#include <linux/pci.h>
11#include <linux/cdev.h>
12
13#define SWITCHTEC_MRPC_PAYLOAD_SIZE 1024
14#define SWITCHTEC_MAX_PFF_CSR 255
15
16#define SWITCHTEC_EVENT_OCCURRED BIT(0)
17#define SWITCHTEC_EVENT_CLEAR BIT(0)
18#define SWITCHTEC_EVENT_EN_LOG BIT(1)
19#define SWITCHTEC_EVENT_EN_CLI BIT(2)
20#define SWITCHTEC_EVENT_EN_IRQ BIT(3)
21#define SWITCHTEC_EVENT_FATAL BIT(4)
22#define SWITCHTEC_EVENT_NOT_SUPP BIT(31)
23
24#define SWITCHTEC_DMA_MRPC_EN BIT(0)
25
26#define MRPC_GAS_READ 0x29
27#define MRPC_GAS_WRITE 0x87
28#define MRPC_CMD_ID(x) ((x) & 0xffff)
29
30enum {
31 SWITCHTEC_GAS_MRPC_OFFSET = 0x0000,
32 SWITCHTEC_GAS_TOP_CFG_OFFSET = 0x1000,
33 SWITCHTEC_GAS_SW_EVENT_OFFSET = 0x1800,
34 SWITCHTEC_GAS_SYS_INFO_OFFSET = 0x2000,
35 SWITCHTEC_GAS_FLASH_INFO_OFFSET = 0x2200,
36 SWITCHTEC_GAS_PART_CFG_OFFSET = 0x4000,
37 SWITCHTEC_GAS_NTB_OFFSET = 0x10000,
38 SWITCHTEC_GAS_PFF_CSR_OFFSET = 0x134000,
39};
40
41enum switchtec_gen {
42 SWITCHTEC_GEN3,
43 SWITCHTEC_GEN4,
44};
45
46struct mrpc_regs {
47 u8 input_data[SWITCHTEC_MRPC_PAYLOAD_SIZE];
48 u8 output_data[SWITCHTEC_MRPC_PAYLOAD_SIZE];
49 u32 cmd;
50 u32 status;
51 u32 ret_value;
52 u32 dma_en;
53 u64 dma_addr;
54 u32 dma_vector;
55 u32 dma_ver;
56} __packed;
57
58enum mrpc_status {
59 SWITCHTEC_MRPC_STATUS_INPROGRESS = 1,
60 SWITCHTEC_MRPC_STATUS_DONE = 2,
61 SWITCHTEC_MRPC_STATUS_ERROR = 0xFF,
62 SWITCHTEC_MRPC_STATUS_INTERRUPTED = 0x100,
63};
64
65struct sw_event_regs {
66 u64 event_report_ctrl;
67 u64 reserved1;
68 u64 part_event_bitmap;
69 u64 reserved2;
70 u32 global_summary;
71 u32 reserved3[3];
72 u32 stack_error_event_hdr;
73 u32 stack_error_event_data;
74 u32 reserved4[4];
75 u32 ppu_error_event_hdr;
76 u32 ppu_error_event_data;
77 u32 reserved5[4];
78 u32 isp_error_event_hdr;
79 u32 isp_error_event_data;
80 u32 reserved6[4];
81 u32 sys_reset_event_hdr;
82 u32 reserved7[5];
83 u32 fw_exception_hdr;
84 u32 reserved8[5];
85 u32 fw_nmi_hdr;
86 u32 reserved9[5];
87 u32 fw_non_fatal_hdr;
88 u32 reserved10[5];
89 u32 fw_fatal_hdr;
90 u32 reserved11[5];
91 u32 twi_mrpc_comp_hdr;
92 u32 twi_mrpc_comp_data;
93 u32 reserved12[4];
94 u32 twi_mrpc_comp_async_hdr;
95 u32 twi_mrpc_comp_async_data;
96 u32 reserved13[4];
97 u32 cli_mrpc_comp_hdr;
98 u32 cli_mrpc_comp_data;
99 u32 reserved14[4];
100 u32 cli_mrpc_comp_async_hdr;
101 u32 cli_mrpc_comp_async_data;
102 u32 reserved15[4];
103 u32 gpio_interrupt_hdr;
104 u32 gpio_interrupt_data;
105 u32 reserved16[4];
106 u32 gfms_event_hdr;
107 u32 gfms_event_data;
108 u32 reserved17[4];
109} __packed;
110
111enum {
112 SWITCHTEC_GEN3_CFG0_RUNNING = 0x04,
113 SWITCHTEC_GEN3_CFG1_RUNNING = 0x05,
114 SWITCHTEC_GEN3_IMG0_RUNNING = 0x03,
115 SWITCHTEC_GEN3_IMG1_RUNNING = 0x07,
116};
117
118enum {
119 SWITCHTEC_GEN4_MAP0_RUNNING = 0x00,
120 SWITCHTEC_GEN4_MAP1_RUNNING = 0x01,
121 SWITCHTEC_GEN4_KEY0_RUNNING = 0x02,
122 SWITCHTEC_GEN4_KEY1_RUNNING = 0x03,
123 SWITCHTEC_GEN4_BL2_0_RUNNING = 0x04,
124 SWITCHTEC_GEN4_BL2_1_RUNNING = 0x05,
125 SWITCHTEC_GEN4_CFG0_RUNNING = 0x06,
126 SWITCHTEC_GEN4_CFG1_RUNNING = 0x07,
127 SWITCHTEC_GEN4_IMG0_RUNNING = 0x08,
128 SWITCHTEC_GEN4_IMG1_RUNNING = 0x09,
129};
130
131enum {
132 SWITCHTEC_GEN4_KEY0_ACTIVE = 0,
133 SWITCHTEC_GEN4_KEY1_ACTIVE = 1,
134 SWITCHTEC_GEN4_BL2_0_ACTIVE = 0,
135 SWITCHTEC_GEN4_BL2_1_ACTIVE = 1,
136 SWITCHTEC_GEN4_CFG0_ACTIVE = 0,
137 SWITCHTEC_GEN4_CFG1_ACTIVE = 1,
138 SWITCHTEC_GEN4_IMG0_ACTIVE = 0,
139 SWITCHTEC_GEN4_IMG1_ACTIVE = 1,
140};
141
142struct sys_info_regs_gen3 {
143 u32 reserved1;
144 u32 vendor_table_revision;
145 u32 table_format_version;
146 u32 partition_id;
147 u32 cfg_file_fmt_version;
148 u16 cfg_running;
149 u16 img_running;
150 u32 reserved2[57];
151 char vendor_id[8];
152 char product_id[16];
153 char product_revision[4];
154 char component_vendor[8];
155 u16 component_id;
156 u8 component_revision;
157} __packed;
158
159struct sys_info_regs_gen4 {
160 u16 gas_layout_ver;
161 u8 evlist_ver;
162 u8 reserved1;
163 u16 mgmt_cmd_set_ver;
164 u16 fabric_cmd_set_ver;
165 u32 reserved2[2];
166 u8 mrpc_uart_ver;
167 u8 mrpc_twi_ver;
168 u8 mrpc_eth_ver;
169 u8 mrpc_inband_ver;
170 u32 reserved3[7];
171 u32 fw_update_tmo;
172 u32 xml_version_cfg;
173 u32 xml_version_img;
174 u32 partition_id;
175 u16 bl2_running;
176 u16 cfg_running;
177 u16 img_running;
178 u16 key_running;
179 u32 reserved4[43];
180 u32 vendor_seeprom_twi;
181 u32 vendor_table_revision;
182 u32 vendor_specific_info[2];
183 u16 p2p_vendor_id;
184 u16 p2p_device_id;
185 u8 p2p_revision_id;
186 u8 reserved5[3];
187 u32 p2p_class_id;
188 u16 subsystem_vendor_id;
189 u16 subsystem_id;
190 u32 p2p_serial_number[2];
191 u8 mac_addr[6];
192 u8 reserved6[2];
193 u32 reserved7[3];
194 char vendor_id[8];
195 char product_id[24];
196 char product_revision[2];
197 u16 reserved8;
198} __packed;
199
200struct sys_info_regs {
201 u32 device_id;
202 u32 device_version;
203 u32 firmware_version;
204 union {
205 struct sys_info_regs_gen3 gen3;
206 struct sys_info_regs_gen4 gen4;
207 };
208} __packed;
209
210struct partition_info {
211 u32 address;
212 u32 length;
213};
214
215struct flash_info_regs_gen3 {
216 u32 flash_part_map_upd_idx;
217
218 struct active_partition_info_gen3 {
219 u32 address;
220 u32 build_version;
221 u32 build_string;
222 } active_img;
223
224 struct active_partition_info_gen3 active_cfg;
225 struct active_partition_info_gen3 inactive_img;
226 struct active_partition_info_gen3 inactive_cfg;
227
228 u32 flash_length;
229
230 struct partition_info cfg0;
231 struct partition_info cfg1;
232 struct partition_info img0;
233 struct partition_info img1;
234 struct partition_info nvlog;
235 struct partition_info vendor[8];
236};
237
238struct flash_info_regs_gen4 {
239 u32 flash_address;
240 u32 flash_length;
241
242 struct active_partition_info_gen4 {
243 unsigned char bl2;
244 unsigned char cfg;
245 unsigned char img;
246 unsigned char key;
247 } active_flag;
248
249 u32 reserved[3];
250
251 struct partition_info map0;
252 struct partition_info map1;
253 struct partition_info key0;
254 struct partition_info key1;
255 struct partition_info bl2_0;
256 struct partition_info bl2_1;
257 struct partition_info cfg0;
258 struct partition_info cfg1;
259 struct partition_info img0;
260 struct partition_info img1;
261 struct partition_info nvlog;
262 struct partition_info vendor[8];
263};
264
265struct flash_info_regs {
266 union {
267 struct flash_info_regs_gen3 gen3;
268 struct flash_info_regs_gen4 gen4;
269 };
270};
271
272enum {
273 SWITCHTEC_NTB_REG_INFO_OFFSET = 0x0000,
274 SWITCHTEC_NTB_REG_CTRL_OFFSET = 0x4000,
275 SWITCHTEC_NTB_REG_DBMSG_OFFSET = 0x64000,
276};
277
278struct ntb_info_regs {
279 u8 partition_count;
280 u8 partition_id;
281 u16 reserved1;
282 u64 ep_map;
283 u16 requester_id;
284 u16 reserved2;
285 u32 reserved3[4];
286 struct nt_partition_info {
287 u32 xlink_enabled;
288 u32 target_part_low;
289 u32 target_part_high;
290 u32 reserved;
291 } ntp_info[48];
292} __packed;
293
294struct part_cfg_regs {
295 u32 status;
296 u32 state;
297 u32 port_cnt;
298 u32 usp_port_mode;
299 u32 usp_pff_inst_id;
300 u32 vep_pff_inst_id;
301 u32 dsp_pff_inst_id[47];
302 u32 reserved1[11];
303 u16 vep_vector_number;
304 u16 usp_vector_number;
305 u32 port_event_bitmap;
306 u32 reserved2[3];
307 u32 part_event_summary;
308 u32 reserved3[3];
309 u32 part_reset_hdr;
310 u32 part_reset_data[5];
311 u32 mrpc_comp_hdr;
312 u32 mrpc_comp_data[5];
313 u32 mrpc_comp_async_hdr;
314 u32 mrpc_comp_async_data[5];
315 u32 dyn_binding_hdr;
316 u32 dyn_binding_data[5];
317 u32 intercomm_notify_hdr;
318 u32 intercomm_notify_data[5];
319 u32 reserved4[153];
320} __packed;
321
322enum {
323 NTB_CTRL_PART_OP_LOCK = 0x1,
324 NTB_CTRL_PART_OP_CFG = 0x2,
325 NTB_CTRL_PART_OP_RESET = 0x3,
326
327 NTB_CTRL_PART_STATUS_NORMAL = 0x1,
328 NTB_CTRL_PART_STATUS_LOCKED = 0x2,
329 NTB_CTRL_PART_STATUS_LOCKING = 0x3,
330 NTB_CTRL_PART_STATUS_CONFIGURING = 0x4,
331 NTB_CTRL_PART_STATUS_RESETTING = 0x5,
332
333 NTB_CTRL_BAR_VALID = 1 << 0,
334 NTB_CTRL_BAR_DIR_WIN_EN = 1 << 4,
335 NTB_CTRL_BAR_LUT_WIN_EN = 1 << 5,
336
337 NTB_CTRL_REQ_ID_EN = 1 << 0,
338
339 NTB_CTRL_LUT_EN = 1 << 0,
340};
341
342struct ntb_ctrl_regs {
343 u32 partition_status;
344 u32 partition_op;
345 u32 partition_ctrl;
346 u32 bar_setup;
347 u32 bar_error;
348 u16 lut_table_entries;
349 u16 lut_table_offset;
350 u32 lut_error;
351 u16 req_id_table_size;
352 u16 req_id_table_offset;
353 u32 req_id_error;
354 u32 reserved1[7];
355 struct {
356 u32 ctl;
357 u32 win_size;
358 u64 xlate_addr;
359 } bar_entry[6];
360 struct {
361 u32 win_size;
362 u32 reserved[3];
363 } bar_ext_entry[6];
364 u32 reserved2[192];
365 u32 req_id_table[512];
366 u32 reserved3[256];
367 u64 lut_entry[512];
368} __packed;
369
370#define NTB_DBMSG_IMSG_STATUS BIT_ULL(32)
371#define NTB_DBMSG_IMSG_MASK BIT_ULL(40)
372
373struct ntb_dbmsg_regs {
374 u32 reserved1[1024];
375 u64 odb;
376 u64 odb_mask;
377 u64 idb;
378 u64 idb_mask;
379 u8 idb_vec_map[64];
380 u32 msg_map;
381 u32 reserved2;
382 struct {
383 u32 msg;
384 u32 status;
385 } omsg[4];
386
387 struct {
388 u32 msg;
389 u8 status;
390 u8 mask;
391 u8 src;
392 u8 reserved;
393 } imsg[4];
394
395 u8 reserved3[3928];
396 u8 msix_table[1024];
397 u8 reserved4[3072];
398 u8 pba[24];
399 u8 reserved5[4072];
400} __packed;
401
402enum {
403 SWITCHTEC_PART_CFG_EVENT_RESET = 1 << 0,
404 SWITCHTEC_PART_CFG_EVENT_MRPC_CMP = 1 << 1,
405 SWITCHTEC_PART_CFG_EVENT_MRPC_ASYNC_CMP = 1 << 2,
406 SWITCHTEC_PART_CFG_EVENT_DYN_PART_CMP = 1 << 3,
407};
408
409struct pff_csr_regs {
410 u16 vendor_id;
411 u16 device_id;
412 u16 pcicmd;
413 u16 pcists;
414 u32 pci_class;
415 u32 pci_opts;
416 union {
417 u32 pci_bar[6];
418 u64 pci_bar64[3];
419 };
420 u32 pci_cardbus;
421 u32 pci_subsystem_id;
422 u32 pci_expansion_rom;
423 u32 pci_cap_ptr;
424 u32 reserved1;
425 u32 pci_irq;
426 u32 pci_cap_region[48];
427 u32 pcie_cap_region[448];
428 u32 indirect_gas_window[128];
429 u32 indirect_gas_window_off;
430 u32 reserved[127];
431 u32 pff_event_summary;
432 u32 reserved2[3];
433 u32 aer_in_p2p_hdr;
434 u32 aer_in_p2p_data[5];
435 u32 aer_in_vep_hdr;
436 u32 aer_in_vep_data[5];
437 u32 dpc_hdr;
438 u32 dpc_data[5];
439 u32 cts_hdr;
440 u32 cts_data[5];
441 u32 uec_hdr;
442 u32 uec_data[5];
443 u32 hotplug_hdr;
444 u32 hotplug_data[5];
445 u32 ier_hdr;
446 u32 ier_data[5];
447 u32 threshold_hdr;
448 u32 threshold_data[5];
449 u32 power_mgmt_hdr;
450 u32 power_mgmt_data[5];
451 u32 tlp_throttling_hdr;
452 u32 tlp_throttling_data[5];
453 u32 force_speed_hdr;
454 u32 force_speed_data[5];
455 u32 credit_timeout_hdr;
456 u32 credit_timeout_data[5];
457 u32 link_state_hdr;
458 u32 link_state_data[5];
459 u32 reserved4[174];
460} __packed;
461
462struct switchtec_ntb;
463
464struct dma_mrpc_output {
465 u32 status;
466 u32 cmd_id;
467 u32 rtn_code;
468 u32 output_size;
469 u8 data[SWITCHTEC_MRPC_PAYLOAD_SIZE];
470};
471
472struct switchtec_dev {
473 struct pci_dev *pdev;
474 struct device dev;
475 struct cdev cdev;
476
477 enum switchtec_gen gen;
478
479 int partition;
480 int partition_count;
481 int pff_csr_count;
482 char pff_local[SWITCHTEC_MAX_PFF_CSR];
483
484 void __iomem *mmio;
485 struct mrpc_regs __iomem *mmio_mrpc;
486 struct sw_event_regs __iomem *mmio_sw_event;
487 struct sys_info_regs __iomem *mmio_sys_info;
488 struct flash_info_regs __iomem *mmio_flash_info;
489 struct ntb_info_regs __iomem *mmio_ntb;
490 struct part_cfg_regs __iomem *mmio_part_cfg;
491 struct part_cfg_regs __iomem *mmio_part_cfg_all;
492 struct pff_csr_regs __iomem *mmio_pff_csr;
493
494 /*
495 * The mrpc mutex must be held when accessing the other
496 * mrpc_ fields, alive flag and stuser->state field
497 */
498 struct mutex mrpc_mutex;
499 struct list_head mrpc_queue;
500 int mrpc_busy;
501 struct work_struct mrpc_work;
502 struct delayed_work mrpc_timeout;
503 bool alive;
504
505 wait_queue_head_t event_wq;
506 atomic_t event_cnt;
507
508 struct work_struct link_event_work;
509 void (*link_notifier)(struct switchtec_dev *stdev);
510 u8 link_event_count[SWITCHTEC_MAX_PFF_CSR];
511
512 struct switchtec_ntb *sndev;
513
514 struct dma_mrpc_output *dma_mrpc;
515 dma_addr_t dma_mrpc_dma_addr;
516};
517
518static inline struct switchtec_dev *to_stdev(struct device *dev)
519{
520 return container_of(dev, struct switchtec_dev, dev);
521}
522
523extern struct class *switchtec_class;
524
525#endif