summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/freescale/fman/fman.h
blob: f2ede1360f03a9cc1f312d84c87df854dc5f4847 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
/*
 * Copyright 2008-2015 Freescale Semiconductor Inc.
 * Copyright 2020 NXP
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Freescale Semiconductor nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 *
 * ALTERNATIVELY, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") as published by the Free Software
 * Foundation, either version 2 of that License or (at your option) any
 * later version.
 *
 * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __FM_H
#define __FM_H

#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/of_irq.h>

/* FM Frame descriptor macros  */
/* Frame queue Context Override */
#define FM_FD_CMD_FCO                   0x80000000
#define FM_FD_CMD_RPD                   0x40000000  /* Read Prepended Data */
#define FM_FD_CMD_UPD			0x20000000  /* Update Prepended Data */
#define FM_FD_CMD_DTC                   0x10000000  /* Do L4 Checksum */

/* TX-Port: Unsupported Format */
#define FM_FD_ERR_UNSUPPORTED_FORMAT    0x04000000
/* TX Port: Length Error */
#define FM_FD_ERR_LENGTH                0x02000000
#define FM_FD_ERR_DMA                   0x01000000  /* DMA Data error */

/* IPR frame (not error) */
#define FM_FD_IPR                       0x00000001
/* IPR non-consistent-sp */
#define FM_FD_ERR_IPR_NCSP              (0x00100000 | FM_FD_IPR)
/* IPR error */
#define FM_FD_ERR_IPR                   (0x00200000 | FM_FD_IPR)
/* IPR timeout */
#define FM_FD_ERR_IPR_TO                (0x00300000 | FM_FD_IPR)
/* TX Port: Length Error */
#define FM_FD_ERR_IPRE                  (FM_FD_ERR_IPR & ~FM_FD_IPR)

/* Rx FIFO overflow, FCS error, code error, running disparity error
 * (SGMII and TBI modes), FIFO parity error. PHY Sequence error,
 * PHY error control character detected.
 */
#define FM_FD_ERR_PHYSICAL              0x00080000
/* Frame too long OR Frame size exceeds max_length_frame  */
#define FM_FD_ERR_SIZE                  0x00040000
/* classification discard */
#define FM_FD_ERR_CLS_DISCARD           0x00020000
/* Extract Out of Frame */
#define FM_FD_ERR_EXTRACTION            0x00008000
/* No Scheme Selected */
#define FM_FD_ERR_NO_SCHEME             0x00004000
/* Keysize Overflow */
#define FM_FD_ERR_KEYSIZE_OVERFLOW      0x00002000
/* Frame color is red */
#define FM_FD_ERR_COLOR_RED             0x00000800
/* Frame color is yellow */
#define FM_FD_ERR_COLOR_YELLOW          0x00000400
/* Parser Time out Exceed */
#define FM_FD_ERR_PRS_TIMEOUT           0x00000080
/* Invalid Soft Parser instruction */
#define FM_FD_ERR_PRS_ILL_INSTRUCT      0x00000040
/* Header error was identified during parsing */
#define FM_FD_ERR_PRS_HDR_ERR           0x00000020
/* Frame parsed beyind 256 first bytes */
#define FM_FD_ERR_BLOCK_LIMIT_EXCEEDED  0x00000008

/* non Frame-Manager error */
#define FM_FD_RX_STATUS_ERR_NON_FM      0x00400000

/* FMan driver defines */
#define FMAN_BMI_FIFO_UNITS		0x100
#define OFFSET_UNITS			16

/* BMan defines */
#define BM_MAX_NUM_OF_POOLS		64 /* Buffers pools */
#define FMAN_PORT_MAX_EXT_POOLS_NUM	8  /* External BM pools per Rx port */

struct fman; /* FMan data */

/* Enum for defining port types */
enum fman_port_type {
	FMAN_PORT_TYPE_TX = 0,	/* TX Port */
	FMAN_PORT_TYPE_RX,	/* RX Port */
};

struct fman_rev_info {
	u8 major;			/* Major revision */
	u8 minor;			/* Minor revision */
};

enum fman_exceptions {
	FMAN_EX_DMA_BUS_ERROR = 0,	/* DMA bus error. */
	FMAN_EX_DMA_READ_ECC,		/* Read Buffer ECC error */
	FMAN_EX_DMA_SYSTEM_WRITE_ECC,	/* Write Buffer ECC err on sys side */
	FMAN_EX_DMA_FM_WRITE_ECC,	/* Write Buffer ECC error on FM side */
	FMAN_EX_DMA_SINGLE_PORT_ECC,	/* Single Port ECC error on FM side */
	FMAN_EX_FPM_STALL_ON_TASKS,	/* Stall of tasks on FPM */
	FMAN_EX_FPM_SINGLE_ECC,		/* Single ECC on FPM. */
	FMAN_EX_FPM_DOUBLE_ECC,		/* Double ECC error on FPM ram access */
	FMAN_EX_QMI_SINGLE_ECC,	/* Single ECC on QMI. */
	FMAN_EX_QMI_DOUBLE_ECC,	/* Double bit ECC occurred on QMI */
	FMAN_EX_QMI_DEQ_FROM_UNKNOWN_PORTID,/* DeQ from unknown port id */
	FMAN_EX_BMI_LIST_RAM_ECC,	/* Linked List RAM ECC error */
	FMAN_EX_BMI_STORAGE_PROFILE_ECC,/* storage profile */
	FMAN_EX_BMI_STATISTICS_RAM_ECC,/* Statistics RAM ECC Err Enable */
	FMAN_EX_BMI_DISPATCH_RAM_ECC,	/* Dispatch RAM ECC Error Enable */
	FMAN_EX_IRAM_ECC,		/* Double bit ECC occurred on IRAM */
	FMAN_EX_MURAM_ECC		/* Double bit ECC occurred on MURAM */
};

/* Parse results memory layout */
struct fman_prs_result {
	u8 lpid;		/* Logical port id */
	u8 shimr;		/* Shim header result  */
	__be16 l2r;		/* Layer 2 result */
	__be16 l3r;		/* Layer 3 result */
	u8 l4r;		/* Layer 4 result */
	u8 cplan;		/* Classification plan id */
	__be16 nxthdr;		/* Next Header  */
	__be16 cksum;		/* Running-sum */
	/* Flags&fragment-offset field of the last IP-header */
	__be16 flags_frag_off;
	/* Routing type field of a IPV6 routing extension header */
	u8 route_type;
	/* Routing Extension Header Present; last bit is IP valid */
	u8 rhp_ip_valid;
	u8 shim_off[2];		/* Shim offset */
	u8 ip_pid_off;		/* IP PID (last IP-proto) offset */
	u8 eth_off;		/* ETH offset */
	u8 llc_snap_off;	/* LLC_SNAP offset */
	u8 vlan_off[2];		/* VLAN offset */
	u8 etype_off;		/* ETYPE offset */
	u8 pppoe_off;		/* PPP offset */
	u8 mpls_off[2];		/* MPLS offset */
	u8 ip_off[2];		/* IP offset */
	u8 gre_off;		/* GRE offset */
	u8 l4_off;		/* Layer 4 offset */
	u8 nxthdr_off;		/* Parser end point */
};

/* A structure for defining buffer prefix area content. */
struct fman_buffer_prefix_content {
	/* Number of bytes to be left at the beginning of the external
	 * buffer; Note that the private-area will start from the base
	 * of the buffer address.
	 */
	u16 priv_data_size;
	/* true to pass the parse result to/from the FM;
	 * User may use FM_PORT_GetBufferPrsResult() in
	 * order to get the parser-result from a buffer.
	 */
	bool pass_prs_result;
	/* true to pass the timeStamp to/from the FM User */
	bool pass_time_stamp;
	/* true to pass the KG hash result to/from the FM User may
	 * use FM_PORT_GetBufferHashResult() in order to get the
	 * parser-result from a buffer.
	 */
	bool pass_hash_result;
	/* Add all other Internal-Context information: AD,
	 * hash-result, key, etc.
	 */
	u16 data_align;
};

/* A structure of information about each of the external
 * buffer pools used by a port or storage-profile.
 */
struct fman_ext_pool_params {
	u8 id;		    /* External buffer pool id */
	u16 size;		    /* External buffer pool buffer size */
};

/* A structure for informing the driver about the external
 * buffer pools allocated in the BM and used by a port or a
 * storage-profile.
 */
struct fman_ext_pools {
	u8 num_of_pools_used; /* Number of pools use by this port */
	struct fman_ext_pool_params ext_buf_pool[FMAN_PORT_MAX_EXT_POOLS_NUM];
					/* Parameters for each port */
};

/* A structure for defining BM pool depletion criteria */
struct fman_buf_pool_depletion {
	/* select mode in which pause frames will be sent after a
	 * number of pools (all together!) are depleted
	 */
	bool pools_grp_mode_enable;
	/* the number of depleted pools that will invoke pause
	 * frames transmission.
	 */
	u8 num_of_pools;
	/* For each pool, true if it should be considered for
	 * depletion (Note - this pool must be used by this port!).
	 */
	bool pools_to_consider[BM_MAX_NUM_OF_POOLS];
	/* select mode in which pause frames will be sent
	 * after a single-pool is depleted;
	 */
	bool single_pool_mode_enable;
	/* For each pool, true if it should be considered
	 * for depletion (Note - this pool must be used by this port!)
	 */
	bool pools_to_consider_for_single_mode[BM_MAX_NUM_OF_POOLS];
};

/* Enum for inter-module interrupts registration */
enum fman_event_modules {
	FMAN_MOD_MAC = 0,		/* MAC event */
	FMAN_MOD_FMAN_CTRL,	/* FMAN Controller */
	FMAN_MOD_DUMMY_LAST
};

/* Enum for interrupts types */
enum fman_intr_type {
	FMAN_INTR_TYPE_ERR,
	FMAN_INTR_TYPE_NORMAL
};

/* Enum for inter-module interrupts registration */
enum fman_inter_module_event {
	FMAN_EV_ERR_MAC0 = 0,	/* MAC 0 error event */
	FMAN_EV_ERR_MAC1,		/* MAC 1 error event */
	FMAN_EV_ERR_MAC2,		/* MAC 2 error event */
	FMAN_EV_ERR_MAC3,		/* MAC 3 error event */
	FMAN_EV_ERR_MAC4,		/* MAC 4 error event */
	FMAN_EV_ERR_MAC5,		/* MAC 5 error event */
	FMAN_EV_ERR_MAC6,		/* MAC 6 error event */
	FMAN_EV_ERR_MAC7,		/* MAC 7 error event */
	FMAN_EV_ERR_MAC8,		/* MAC 8 error event */
	FMAN_EV_ERR_MAC9,		/* MAC 9 error event */
	FMAN_EV_MAC0,		/* MAC 0 event (Magic packet detection) */
	FMAN_EV_MAC1,		/* MAC 1 event (Magic packet detection) */
	FMAN_EV_MAC2,		/* MAC 2 (Magic packet detection) */
	FMAN_EV_MAC3,		/* MAC 3 (Magic packet detection) */
	FMAN_EV_MAC4,		/* MAC 4 (Magic packet detection) */
	FMAN_EV_MAC5,		/* MAC 5 (Magic packet detection) */
	FMAN_EV_MAC6,		/* MAC 6 (Magic packet detection) */
	FMAN_EV_MAC7,		/* MAC 7 (Magic packet detection) */
	FMAN_EV_MAC8,		/* MAC 8 event (Magic packet detection) */
	FMAN_EV_MAC9,		/* MAC 9 event (Magic packet detection) */
	FMAN_EV_FMAN_CTRL_0,	/* Fman controller event 0 */
	FMAN_EV_FMAN_CTRL_1,	/* Fman controller event 1 */
	FMAN_EV_FMAN_CTRL_2,	/* Fman controller event 2 */
	FMAN_EV_FMAN_CTRL_3,	/* Fman controller event 3 */
	FMAN_EV_CNT
};

struct fman_intr_src {
	void (*isr_cb)(void *src_arg);
	void *src_handle;
};

/** fman_exceptions_cb
 * fman         - Pointer to FMan
 * exception    - The exception.
 *
 * Exceptions user callback routine, will be called upon an exception
 * passing the exception identification.
 *
 * Return: irq status
 */
typedef irqreturn_t (fman_exceptions_cb)(struct fman *fman,
					 enum fman_exceptions exception);
/** fman_bus_error_cb
 * fman         - Pointer to FMan
 * port_id      - Port id
 * addr         - Address that caused the error
 * tnum         - Owner of error
 * liodn        - Logical IO device number
 *
 * Bus error user callback routine, will be called upon bus error,
 * passing parameters describing the errors and the owner.
 *
 * Return: IRQ status
 */
typedef irqreturn_t (fman_bus_error_cb)(struct fman *fman, u8 port_id,
					u64 addr, u8 tnum, u16 liodn);

/* Structure that holds information received from device tree */
struct fman_dts_params {
	void __iomem *base_addr;                /* FMan virtual address */
	struct resource *res;                   /* FMan memory resource */
	u8 id;                                  /* FMan ID */

	int err_irq;                            /* FMan Error IRQ */

	u16 clk_freq;                           /* FMan clock freq (In Mhz) */

	u32 qman_channel_base;                  /* QMan channels base */
	u32 num_of_qman_channels;               /* Number of QMan channels */

	struct resource muram_res;              /* MURAM resource */
};

struct fman {
	struct device *dev;
	void __iomem *base_addr;
	struct fman_intr_src intr_mng[FMAN_EV_CNT];

	struct fman_fpm_regs __iomem *fpm_regs;
	struct fman_bmi_regs __iomem *bmi_regs;
	struct fman_qmi_regs __iomem *qmi_regs;
	struct fman_dma_regs __iomem *dma_regs;
	struct fman_hwp_regs __iomem *hwp_regs;
	struct fman_kg_regs __iomem *kg_regs;
	fman_exceptions_cb *exception_cb;
	fman_bus_error_cb *bus_error_cb;
	/* Spinlock for FMan use */
	spinlock_t spinlock;
	struct fman_state_struct *state;

	struct fman_cfg *cfg;
	struct muram_info *muram;
	struct fman_keygen *keygen;
	/* cam section in muram */
	unsigned long cam_offset;
	size_t cam_size;
	/* Fifo in MURAM */
	unsigned long fifo_offset;
	size_t fifo_size;

	u32 liodn_base[64];
	u32 liodn_offset[64];

	struct fman_dts_params dts_params;
};

/* Structure for port-FM communication during fman_port_init. */
struct fman_port_init_params {
	u8 port_id;			/* port Id */
	enum fman_port_type port_type;	/* Port type */
	u16 port_speed;			/* Port speed */
	u16 liodn_offset;		/* Port's requested resource */
	u8 num_of_tasks;		/* Port's requested resource */
	u8 num_of_extra_tasks;		/* Port's requested resource */
	u8 num_of_open_dmas;		/* Port's requested resource */
	u8 num_of_extra_open_dmas;	/* Port's requested resource */
	u32 size_of_fifo;		/* Port's requested resource */
	u32 extra_size_of_fifo;		/* Port's requested resource */
	u8 deq_pipeline_depth;		/* Port's requested resource */
	u16 max_frame_length;		/* Port's max frame length. */
	u16 liodn_base;
	/* LIODN base for this port, to be used together with LIODN offset. */
};

void fman_get_revision(struct fman *fman, struct fman_rev_info *rev_info);

void fman_register_intr(struct fman *fman, enum fman_event_modules mod,
			u8 mod_id, enum fman_intr_type intr_type,
			void (*f_isr)(void *h_src_arg), void *h_src_arg);

void fman_unregister_intr(struct fman *fman, enum fman_event_modules mod,
			  u8 mod_id, enum fman_intr_type intr_type);

int fman_set_port_params(struct fman *fman,
			 struct fman_port_init_params *port_params);

int fman_reset_mac(struct fman *fman, u8 mac_id);

u16 fman_get_clock_freq(struct fman *fman);

u32 fman_get_bmi_max_fifo_size(struct fman *fman);

int fman_set_mac_max_frame(struct fman *fman, u8 mac_id, u16 mfl);

u32 fman_get_qman_channel_id(struct fman *fman, u32 port_id);

struct resource *fman_get_mem_region(struct fman *fman);

u16 fman_get_max_frm(void);

int fman_get_rx_extra_headroom(void);

#ifdef CONFIG_DPAA_ERRATUM_A050385
bool fman_has_errata_a050385(void);
#endif

struct fman *fman_bind(struct device *dev);

#endif /* __FM_H */