2 * Copyright 2008 - 2015 Freescale Semiconductor Inc.
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5 * modification, are permitted provided that the following conditions are met:
6 * * Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
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10 * documentation and/or other materials provided with the distribution.
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12 * names of its contributors may be used to endorse or promote products
13 * derived from this software without specific prior written permission.
16 * ALTERNATIVELY, this software may be distributed under the terms of the
17 * GNU General Public License ("GPL") as published by the Free Software
18 * Foundation, either version 2 of that License or (at your option) any
21 * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
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33 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
36 #include <linux/slab.h>
37 #include <linux/module.h>
38 #include <linux/interrupt.h>
39 #include <linux/of_platform.h>
40 #include <linux/of_address.h>
41 #include <linux/delay.h>
42 #include <linux/libfdt_env.h>
45 #include "fman_port.h"
47 #include "fman_keygen.h"
50 #define DFLT_FQ_ID 0x00FFFFFF
53 #define PORT_BMI_FIFO_UNITS 0x100
55 #define MAX_PORT_FIFO_SIZE(bmi_max_fifo_size) \
56 min((u32)bmi_max_fifo_size, (u32)1024 * FMAN_BMI_FIFO_UNITS)
58 #define PORT_CG_MAP_NUM 8
59 #define PORT_PRS_RESULT_WORDS_NUM 8
60 #define PORT_IC_OFFSET_UNITS 0x10
62 #define MIN_EXT_BUF_SIZE 64
64 #define BMI_PORT_REGS_OFFSET 0
65 #define QMI_PORT_REGS_OFFSET 0x400
66 #define HWP_PORT_REGS_OFFSET 0x800
69 #define DFLT_PORT_BUFFER_PREFIX_CONTEXT_DATA_ALIGN \
70 DFLT_FM_SP_BUFFER_PREFIX_CONTEXT_DATA_ALIGN
72 #define DFLT_PORT_CUT_BYTES_FROM_END 4
74 #define DFLT_PORT_ERRORS_TO_DISCARD FM_PORT_FRM_ERR_CLS_DISCARD
75 #define DFLT_PORT_MAX_FRAME_LENGTH 9600
77 #define DFLT_PORT_RX_FIFO_PRI_ELEVATION_LEV(bmi_max_fifo_size) \
78 MAX_PORT_FIFO_SIZE(bmi_max_fifo_size)
80 #define DFLT_PORT_RX_FIFO_THRESHOLD(major, bmi_max_fifo_size) \
82 MAX_PORT_FIFO_SIZE(bmi_max_fifo_size) : \
83 (MAX_PORT_FIFO_SIZE(bmi_max_fifo_size) * 3 / 4)) \
85 #define DFLT_PORT_EXTRA_NUM_OF_FIFO_BUFS 0
88 #define QMI_DEQ_CFG_SUBPORTAL_MASK 0x1f
90 #define QMI_PORT_CFG_EN 0x80000000
91 #define QMI_PORT_STATUS_DEQ_FD_BSY 0x20000000
93 #define QMI_DEQ_CFG_PRI 0x80000000
94 #define QMI_DEQ_CFG_TYPE1 0x10000000
95 #define QMI_DEQ_CFG_TYPE2 0x20000000
96 #define QMI_DEQ_CFG_TYPE3 0x30000000
97 #define QMI_DEQ_CFG_PREFETCH_PARTIAL 0x01000000
98 #define QMI_DEQ_CFG_PREFETCH_FULL 0x03000000
99 #define QMI_DEQ_CFG_SP_MASK 0xf
100 #define QMI_DEQ_CFG_SP_SHIFT 20
102 #define QMI_BYTE_COUNT_LEVEL_CONTROL(_type) \
103 (_type == FMAN_PORT_TYPE_TX ? 0x1400 : 0x400)
106 #define BMI_EBD_EN 0x80000000
108 #define BMI_PORT_CFG_EN 0x80000000
110 #define BMI_PORT_STATUS_BSY 0x80000000
112 #define BMI_DMA_ATTR_SWP_SHIFT FMAN_SP_DMA_ATTR_SWP_SHIFT
113 #define BMI_DMA_ATTR_WRITE_OPTIMIZE FMAN_SP_DMA_ATTR_WRITE_OPTIMIZE
115 #define BMI_RX_FIFO_PRI_ELEVATION_SHIFT 16
116 #define BMI_RX_FIFO_THRESHOLD_ETHE 0x80000000
118 #define BMI_FRAME_END_CS_IGNORE_SHIFT 24
119 #define BMI_FRAME_END_CS_IGNORE_MASK 0x0000001f
121 #define BMI_RX_FRAME_END_CUT_SHIFT 16
122 #define BMI_RX_FRAME_END_CUT_MASK 0x0000001f
124 #define BMI_IC_TO_EXT_SHIFT FMAN_SP_IC_TO_EXT_SHIFT
125 #define BMI_IC_TO_EXT_MASK 0x0000001f
126 #define BMI_IC_FROM_INT_SHIFT FMAN_SP_IC_FROM_INT_SHIFT
127 #define BMI_IC_FROM_INT_MASK 0x0000000f
128 #define BMI_IC_SIZE_MASK 0x0000001f
130 #define BMI_INT_BUF_MARG_SHIFT 28
131 #define BMI_INT_BUF_MARG_MASK 0x0000000f
132 #define BMI_EXT_BUF_MARG_START_SHIFT FMAN_SP_EXT_BUF_MARG_START_SHIFT
133 #define BMI_EXT_BUF_MARG_START_MASK 0x000001ff
134 #define BMI_EXT_BUF_MARG_END_MASK 0x000001ff
136 #define BMI_CMD_MR_LEAC 0x00200000
137 #define BMI_CMD_MR_SLEAC 0x00100000
138 #define BMI_CMD_MR_MA 0x00080000
139 #define BMI_CMD_MR_DEAS 0x00040000
140 #define BMI_CMD_RX_MR_DEF (BMI_CMD_MR_LEAC | \
144 #define BMI_CMD_TX_MR_DEF 0
146 #define BMI_CMD_ATTR_ORDER 0x80000000
147 #define BMI_CMD_ATTR_SYNC 0x02000000
148 #define BMI_CMD_ATTR_COLOR_SHIFT 26
150 #define BMI_FIFO_PIPELINE_DEPTH_SHIFT 12
151 #define BMI_FIFO_PIPELINE_DEPTH_MASK 0x0000000f
152 #define BMI_NEXT_ENG_FD_BITS_SHIFT 24
154 #define BMI_EXT_BUF_POOL_VALID FMAN_SP_EXT_BUF_POOL_VALID
155 #define BMI_EXT_BUF_POOL_EN_COUNTER FMAN_SP_EXT_BUF_POOL_EN_COUNTER
156 #define BMI_EXT_BUF_POOL_BACKUP FMAN_SP_EXT_BUF_POOL_BACKUP
157 #define BMI_EXT_BUF_POOL_ID_SHIFT 16
158 #define BMI_EXT_BUF_POOL_ID_MASK 0x003F0000
159 #define BMI_POOL_DEP_NUM_OF_POOLS_SHIFT 16
161 #define BMI_TX_FIFO_MIN_FILL_SHIFT 16
163 #define BMI_PRIORITY_ELEVATION_LEVEL ((0x3FF + 1) * PORT_BMI_FIFO_UNITS)
164 #define BMI_FIFO_THRESHOLD ((0x3FF + 1) * PORT_BMI_FIFO_UNITS)
166 #define BMI_DEQUEUE_PIPELINE_DEPTH(_type, _speed) \
167 ((_type == FMAN_PORT_TYPE_TX && _speed == 10000) ? 4 : 1)
169 #define RX_ERRS_TO_ENQ \
170 (FM_PORT_FRM_ERR_DMA | \
171 FM_PORT_FRM_ERR_PHYSICAL | \
172 FM_PORT_FRM_ERR_SIZE | \
173 FM_PORT_FRM_ERR_EXTRACTION | \
174 FM_PORT_FRM_ERR_NO_SCHEME | \
175 FM_PORT_FRM_ERR_PRS_TIMEOUT | \
176 FM_PORT_FRM_ERR_PRS_ILL_INSTRUCT | \
177 FM_PORT_FRM_ERR_BLOCK_LIMIT_EXCEEDED | \
178 FM_PORT_FRM_ERR_PRS_HDR_ERR | \
179 FM_PORT_FRM_ERR_KEYSIZE_OVERFLOW | \
180 FM_PORT_FRM_ERR_IPRE)
183 #define NIA_ORDER_RESTOR 0x00800000
184 #define NIA_ENG_BMI 0x00500000
185 #define NIA_ENG_QMI_ENQ 0x00540000
186 #define NIA_ENG_QMI_DEQ 0x00580000
187 #define NIA_ENG_HWP 0x00440000
188 #define NIA_ENG_HWK 0x00480000
189 #define NIA_BMI_AC_ENQ_FRAME 0x00000002
190 #define NIA_BMI_AC_TX_RELEASE 0x000002C0
191 #define NIA_BMI_AC_RELEASE 0x000000C0
192 #define NIA_BMI_AC_TX 0x00000274
193 #define NIA_BMI_AC_FETCH_ALL_FRAME 0x0000020c
196 #define TX_10G_PORT_BASE 0x30
197 #define RX_10G_PORT_BASE 0x10
199 /* BMI Rx port register map */
200 struct fman_port_rx_bmi_regs {
201 u32 fmbm_rcfg; /* Rx Configuration */
202 u32 fmbm_rst; /* Rx Status */
203 u32 fmbm_rda; /* Rx DMA attributes */
204 u32 fmbm_rfp; /* Rx FIFO Parameters */
205 u32 fmbm_rfed; /* Rx Frame End Data */
206 u32 fmbm_ricp; /* Rx Internal Context Parameters */
207 u32 fmbm_rim; /* Rx Internal Buffer Margins */
208 u32 fmbm_rebm; /* Rx External Buffer Margins */
209 u32 fmbm_rfne; /* Rx Frame Next Engine */
210 u32 fmbm_rfca; /* Rx Frame Command Attributes. */
211 u32 fmbm_rfpne; /* Rx Frame Parser Next Engine */
212 u32 fmbm_rpso; /* Rx Parse Start Offset */
213 u32 fmbm_rpp; /* Rx Policer Profile */
214 u32 fmbm_rccb; /* Rx Coarse Classification Base */
215 u32 fmbm_reth; /* Rx Excessive Threshold */
216 u32 reserved003c[1]; /* (0x03C 0x03F) */
217 u32 fmbm_rprai[PORT_PRS_RESULT_WORDS_NUM];
218 /* Rx Parse Results Array Init */
219 u32 fmbm_rfqid; /* Rx Frame Queue ID */
220 u32 fmbm_refqid; /* Rx Error Frame Queue ID */
221 u32 fmbm_rfsdm; /* Rx Frame Status Discard Mask */
222 u32 fmbm_rfsem; /* Rx Frame Status Error Mask */
223 u32 fmbm_rfene; /* Rx Frame Enqueue Next Engine */
224 u32 reserved0074[0x2]; /* (0x074-0x07C) */
225 u32 fmbm_rcmne; /* Rx Frame Continuous Mode Next Engine */
226 u32 reserved0080[0x20]; /* (0x080 0x0FF) */
227 u32 fmbm_ebmpi[FMAN_PORT_MAX_EXT_POOLS_NUM];
228 /* Buffer Manager pool Information- */
229 u32 fmbm_acnt[FMAN_PORT_MAX_EXT_POOLS_NUM]; /* Allocate Counter- */
230 u32 reserved0130[8]; /* 0x130/0x140 - 0x15F reserved - */
231 u32 fmbm_rcgm[PORT_CG_MAP_NUM]; /* Congestion Group Map */
232 u32 fmbm_mpd; /* BM Pool Depletion */
233 u32 reserved0184[0x1F]; /* (0x184 0x1FF) */
234 u32 fmbm_rstc; /* Rx Statistics Counters */
235 u32 fmbm_rfrc; /* Rx Frame Counter */
236 u32 fmbm_rfbc; /* Rx Bad Frames Counter */
237 u32 fmbm_rlfc; /* Rx Large Frames Counter */
238 u32 fmbm_rffc; /* Rx Filter Frames Counter */
239 u32 fmbm_rfdc; /* Rx Frame Discard Counter */
240 u32 fmbm_rfldec; /* Rx Frames List DMA Error Counter */
241 u32 fmbm_rodc; /* Rx Out of Buffers Discard nntr */
242 u32 fmbm_rbdc; /* Rx Buffers Deallocate Counter */
243 u32 fmbm_rpec; /* RX Prepare to enqueue Counte */
244 u32 reserved0224[0x16]; /* (0x224 0x27F) */
245 u32 fmbm_rpc; /* Rx Performance Counters */
246 u32 fmbm_rpcp; /* Rx Performance Count Parameters */
247 u32 fmbm_rccn; /* Rx Cycle Counter */
248 u32 fmbm_rtuc; /* Rx Tasks Utilization Counter */
249 u32 fmbm_rrquc; /* Rx Receive Queue Utilization cntr */
250 u32 fmbm_rduc; /* Rx DMA Utilization Counter */
251 u32 fmbm_rfuc; /* Rx FIFO Utilization Counter */
252 u32 fmbm_rpac; /* Rx Pause Activation Counter */
253 u32 reserved02a0[0x18]; /* (0x2A0 0x2FF) */
254 u32 fmbm_rdcfg[0x3]; /* Rx Debug Configuration */
255 u32 fmbm_rgpr; /* Rx General Purpose Register */
256 u32 reserved0310[0x3a];
259 /* BMI Tx port register map */
260 struct fman_port_tx_bmi_regs {
261 u32 fmbm_tcfg; /* Tx Configuration */
262 u32 fmbm_tst; /* Tx Status */
263 u32 fmbm_tda; /* Tx DMA attributes */
264 u32 fmbm_tfp; /* Tx FIFO Parameters */
265 u32 fmbm_tfed; /* Tx Frame End Data */
266 u32 fmbm_ticp; /* Tx Internal Context Parameters */
267 u32 fmbm_tfdne; /* Tx Frame Dequeue Next Engine. */
268 u32 fmbm_tfca; /* Tx Frame Command attribute. */
269 u32 fmbm_tcfqid; /* Tx Confirmation Frame Queue ID. */
270 u32 fmbm_tefqid; /* Tx Frame Error Queue ID */
271 u32 fmbm_tfene; /* Tx Frame Enqueue Next Engine */
272 u32 fmbm_trlmts; /* Tx Rate Limiter Scale */
273 u32 fmbm_trlmt; /* Tx Rate Limiter */
274 u32 reserved0034[0x0e]; /* (0x034-0x6c) */
275 u32 fmbm_tccb; /* Tx Coarse Classification base */
276 u32 fmbm_tfne; /* Tx Frame Next Engine */
277 u32 fmbm_tpfcm[0x02];
278 /* Tx Priority based Flow Control (PFC) Mapping */
279 u32 fmbm_tcmne; /* Tx Frame Continuous Mode Next Engine */
280 u32 reserved0080[0x60]; /* (0x080-0x200) */
281 u32 fmbm_tstc; /* Tx Statistics Counters */
282 u32 fmbm_tfrc; /* Tx Frame Counter */
283 u32 fmbm_tfdc; /* Tx Frames Discard Counter */
284 u32 fmbm_tfledc; /* Tx Frame len error discard cntr */
285 u32 fmbm_tfufdc; /* Tx Frame unsprt frmt discard cntr */
286 u32 fmbm_tbdc; /* Tx Buffers Deallocate Counter */
287 u32 reserved0218[0x1A]; /* (0x218-0x280) */
288 u32 fmbm_tpc; /* Tx Performance Counters */
289 u32 fmbm_tpcp; /* Tx Performance Count Parameters */
290 u32 fmbm_tccn; /* Tx Cycle Counter */
291 u32 fmbm_ttuc; /* Tx Tasks Utilization Counter */
292 u32 fmbm_ttcquc; /* Tx Transmit conf Q util Counter */
293 u32 fmbm_tduc; /* Tx DMA Utilization Counter */
294 u32 fmbm_tfuc; /* Tx FIFO Utilization Counter */
295 u32 reserved029c[16]; /* (0x29C-0x2FF) */
296 u32 fmbm_tdcfg[0x3]; /* Tx Debug Configuration */
297 u32 fmbm_tgpr; /* Tx General Purpose Register */
298 u32 reserved0310[0x3a]; /* (0x310-0x3FF) */
301 /* BMI port register map */
302 union fman_port_bmi_regs {
303 struct fman_port_rx_bmi_regs rx;
304 struct fman_port_tx_bmi_regs tx;
307 /* QMI port register map */
308 struct fman_port_qmi_regs {
309 u32 fmqm_pnc; /* PortID n Configuration Register */
310 u32 fmqm_pns; /* PortID n Status Register */
311 u32 fmqm_pnts; /* PortID n Task Status Register */
312 u32 reserved00c[4]; /* 0xn00C - 0xn01B */
313 u32 fmqm_pnen; /* PortID n Enqueue NIA Register */
314 u32 fmqm_pnetfc; /* PortID n Enq Total Frame Counter */
315 u32 reserved024[2]; /* 0xn024 - 0x02B */
316 u32 fmqm_pndn; /* PortID n Dequeue NIA Register */
317 u32 fmqm_pndc; /* PortID n Dequeue Config Register */
318 u32 fmqm_pndtfc; /* PortID n Dequeue tot Frame cntr */
319 u32 fmqm_pndfdc; /* PortID n Dequeue FQID Dflt Cntr */
320 u32 fmqm_pndcc; /* PortID n Dequeue Confirm Counter */
323 #define HWP_HXS_COUNT 16
324 #define HWP_HXS_PHE_REPORT 0x00000800
325 #define HWP_HXS_PCAC_PSTAT 0x00000100
326 #define HWP_HXS_PCAC_PSTOP 0x00000001
327 #define HWP_HXS_TCP_OFFSET 0xA
328 #define HWP_HXS_UDP_OFFSET 0xB
329 #define HWP_HXS_SH_PAD_REM 0x80000000
331 struct fman_port_hwp_regs {
333 u32 ssa; /* Soft Sequence Attachment */
334 u32 lcv; /* Line-up Enable Confirmation Mask */
335 } pmda[HWP_HXS_COUNT]; /* Parse Memory Direct Access Registers */
336 u32 reserved080[(0x3f8 - 0x080) / 4]; /* (0x080-0x3f7) */
337 u32 fmpr_pcac; /* Configuration Access Control */
340 /* QMI dequeue prefetch modes */
341 enum fman_port_deq_prefetch {
342 FMAN_PORT_DEQ_NO_PREFETCH, /* No prefetch mode */
343 FMAN_PORT_DEQ_PART_PREFETCH, /* Partial prefetch mode */
344 FMAN_PORT_DEQ_FULL_PREFETCH /* Full prefetch mode */
347 /* A structure for defining FM port resources */
348 struct fman_port_rsrc {
349 u32 num; /* Committed required resource */
350 u32 extra; /* Extra (not committed) required resource */
353 enum fman_port_dma_swap {
354 FMAN_PORT_DMA_NO_SWAP, /* No swap, transfer data as is */
355 FMAN_PORT_DMA_SWAP_LE,
356 /* The transferred data should be swapped in PPC Little Endian mode */
357 FMAN_PORT_DMA_SWAP_BE
358 /* The transferred data should be swapped in Big Endian mode */
361 /* Default port color */
362 enum fman_port_color {
363 FMAN_PORT_COLOR_GREEN, /* Default port color is green */
364 FMAN_PORT_COLOR_YELLOW, /* Default port color is yellow */
365 FMAN_PORT_COLOR_RED, /* Default port color is red */
366 FMAN_PORT_COLOR_OVERRIDE /* Ignore color */
369 /* QMI dequeue from the SP channel - types */
370 enum fman_port_deq_type {
371 FMAN_PORT_DEQ_BY_PRI,
372 /* Priority precedence and Intra-Class scheduling */
373 FMAN_PORT_DEQ_ACTIVE_FQ,
374 /* Active FQ precedence and Intra-Class scheduling */
375 FMAN_PORT_DEQ_ACTIVE_FQ_NO_ICS
376 /* Active FQ precedence and override Intra-Class scheduling */
379 /* External buffer pools configuration */
380 struct fman_port_bpools {
381 u8 count; /* Num of pools to set up */
382 bool counters_enable; /* Enable allocate counters */
383 u8 grp_bp_depleted_num;
384 /* Number of depleted pools - if reached the BMI indicates
385 * the MAC to send a pause frame
388 u8 bpid; /* BM pool ID */
390 /* Pool's size - must be in ascending order */
392 /* If this is a backup pool */
393 bool grp_bp_depleted;
394 /* Consider this buffer in multiple pools depletion criteria */
395 bool single_bp_depleted;
396 /* Consider this buffer in single pool depletion criteria */
397 } bpool[FMAN_PORT_MAX_EXT_POOLS_NUM];
400 struct fman_port_cfg {
406 bool deq_high_priority;
407 enum fman_port_deq_type deq_type;
408 enum fman_port_deq_prefetch deq_prefetch_option;
410 u8 cheksum_last_bytes_ignore;
412 struct fman_buf_pool_depletion buf_pool_depletion;
413 struct fman_ext_pools ext_buf_pools;
414 u32 tx_fifo_min_level;
415 u32 tx_fifo_low_comf_level;
416 u32 rx_pri_elevation;
418 struct fman_sp_buf_margins buf_margins;
419 u32 int_buf_start_margin;
420 struct fman_sp_int_context_data_copy int_context;
423 struct fman_buffer_prefix_content buffer_prefix_content;
424 bool dont_release_buf;
427 u32 tx_fifo_deq_pipeline_depth;
429 bool excessive_threshold_register;
430 bool fmbm_tfne_has_features;
432 enum fman_port_dma_swap dma_swap_data;
433 enum fman_port_color color;
436 struct fman_port_rx_pools_params {
438 u16 largest_buf_size;
441 struct fman_port_dts_params {
442 void __iomem *base_addr; /* FMan port virtual memory */
443 enum fman_port_type type; /* Port type */
444 u16 speed; /* Port speed */
445 u8 id; /* HW Port Id */
446 u32 qman_channel_id; /* QMan channel id (non RX only) */
447 struct fman *fman; /* FMan Handle */
453 struct fman_rev_info rev_info;
455 enum fman_port_type port_type;
458 union fman_port_bmi_regs __iomem *bmi_regs;
459 struct fman_port_qmi_regs __iomem *qmi_regs;
460 struct fman_port_hwp_regs __iomem *hwp_regs;
462 struct fman_sp_buffer_offsets buffer_offsets;
464 u8 internal_buf_offset;
465 struct fman_ext_pools ext_buf_pools;
467 u16 max_frame_length;
468 struct fman_port_rsrc open_dmas;
469 struct fman_port_rsrc tasks;
470 struct fman_port_rsrc fifo_bufs;
471 struct fman_port_rx_pools_params rx_pools_params;
473 struct fman_port_cfg *cfg;
474 struct fman_port_dts_params dts_params;
477 u32 max_port_fifo_size;
478 u32 max_num_of_ext_pools;
479 u32 max_num_of_sub_portals;
480 u32 bm_max_num_of_pools;
483 static int init_bmi_rx(struct fman_port *port)
485 struct fman_port_rx_bmi_regs __iomem *regs = &port->bmi_regs->rx;
486 struct fman_port_cfg *cfg = port->cfg;
490 tmp = (u32)cfg->dma_swap_data << BMI_DMA_ATTR_SWP_SHIFT;
491 /* Enable write optimization */
492 tmp |= BMI_DMA_ATTR_WRITE_OPTIMIZE;
493 iowrite32be(tmp, ®s->fmbm_rda);
495 /* Rx FIFO parameters */
496 tmp = (cfg->rx_pri_elevation / PORT_BMI_FIFO_UNITS - 1) <<
497 BMI_RX_FIFO_PRI_ELEVATION_SHIFT;
498 tmp |= cfg->rx_fifo_thr / PORT_BMI_FIFO_UNITS - 1;
499 iowrite32be(tmp, ®s->fmbm_rfp);
501 if (cfg->excessive_threshold_register)
502 /* always allow access to the extra resources */
503 iowrite32be(BMI_RX_FIFO_THRESHOLD_ETHE, ®s->fmbm_reth);
506 tmp = (cfg->cheksum_last_bytes_ignore & BMI_FRAME_END_CS_IGNORE_MASK) <<
507 BMI_FRAME_END_CS_IGNORE_SHIFT;
508 tmp |= (cfg->rx_cut_end_bytes & BMI_RX_FRAME_END_CUT_MASK) <<
509 BMI_RX_FRAME_END_CUT_SHIFT;
510 if (cfg->errata_A006320)
512 iowrite32be(tmp, ®s->fmbm_rfed);
514 /* Internal context parameters */
515 tmp = ((cfg->int_context.ext_buf_offset / PORT_IC_OFFSET_UNITS) &
516 BMI_IC_TO_EXT_MASK) << BMI_IC_TO_EXT_SHIFT;
517 tmp |= ((cfg->int_context.int_context_offset / PORT_IC_OFFSET_UNITS) &
518 BMI_IC_FROM_INT_MASK) << BMI_IC_FROM_INT_SHIFT;
519 tmp |= (cfg->int_context.size / PORT_IC_OFFSET_UNITS) &
521 iowrite32be(tmp, ®s->fmbm_ricp);
523 /* Internal buffer offset */
524 tmp = ((cfg->int_buf_start_margin / PORT_IC_OFFSET_UNITS) &
525 BMI_INT_BUF_MARG_MASK) << BMI_INT_BUF_MARG_SHIFT;
526 iowrite32be(tmp, ®s->fmbm_rim);
528 /* External buffer margins */
529 tmp = (cfg->buf_margins.start_margins & BMI_EXT_BUF_MARG_START_MASK) <<
530 BMI_EXT_BUF_MARG_START_SHIFT;
531 tmp |= cfg->buf_margins.end_margins & BMI_EXT_BUF_MARG_END_MASK;
532 iowrite32be(tmp, ®s->fmbm_rebm);
534 /* Frame attributes */
535 tmp = BMI_CMD_RX_MR_DEF;
536 tmp |= BMI_CMD_ATTR_ORDER;
537 tmp |= (u32)cfg->color << BMI_CMD_ATTR_COLOR_SHIFT;
538 /* Synchronization request */
539 tmp |= BMI_CMD_ATTR_SYNC;
541 iowrite32be(tmp, ®s->fmbm_rfca);
544 tmp = (u32)cfg->rx_fd_bits << BMI_NEXT_ENG_FD_BITS_SHIFT;
547 iowrite32be(tmp, ®s->fmbm_rfne);
549 /* Parser Next Engine NIA */
550 iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_ENQ_FRAME, ®s->fmbm_rfpne);
553 iowrite32be(NIA_ENG_QMI_ENQ | NIA_ORDER_RESTOR, ®s->fmbm_rfene);
555 /* Default/error queues */
556 iowrite32be((cfg->dflt_fqid & DFLT_FQ_ID), ®s->fmbm_rfqid);
557 iowrite32be((cfg->err_fqid & DFLT_FQ_ID), ®s->fmbm_refqid);
559 /* Discard/error masks */
560 iowrite32be(cfg->discard_mask, ®s->fmbm_rfsdm);
561 iowrite32be(cfg->err_mask, ®s->fmbm_rfsem);
566 static int init_bmi_tx(struct fman_port *port)
568 struct fman_port_tx_bmi_regs __iomem *regs = &port->bmi_regs->tx;
569 struct fman_port_cfg *cfg = port->cfg;
572 /* Tx Configuration register */
574 iowrite32be(tmp, ®s->fmbm_tcfg);
577 tmp = (u32)cfg->dma_swap_data << BMI_DMA_ATTR_SWP_SHIFT;
578 iowrite32be(tmp, ®s->fmbm_tda);
580 /* Tx FIFO parameters */
581 tmp = (cfg->tx_fifo_min_level / PORT_BMI_FIFO_UNITS) <<
582 BMI_TX_FIFO_MIN_FILL_SHIFT;
583 tmp |= ((cfg->tx_fifo_deq_pipeline_depth - 1) &
584 BMI_FIFO_PIPELINE_DEPTH_MASK) << BMI_FIFO_PIPELINE_DEPTH_SHIFT;
585 tmp |= (cfg->tx_fifo_low_comf_level / PORT_BMI_FIFO_UNITS) - 1;
586 iowrite32be(tmp, ®s->fmbm_tfp);
589 tmp = (cfg->cheksum_last_bytes_ignore & BMI_FRAME_END_CS_IGNORE_MASK) <<
590 BMI_FRAME_END_CS_IGNORE_SHIFT;
591 iowrite32be(tmp, ®s->fmbm_tfed);
593 /* Internal context parameters */
594 tmp = ((cfg->int_context.ext_buf_offset / PORT_IC_OFFSET_UNITS) &
595 BMI_IC_TO_EXT_MASK) << BMI_IC_TO_EXT_SHIFT;
596 tmp |= ((cfg->int_context.int_context_offset / PORT_IC_OFFSET_UNITS) &
597 BMI_IC_FROM_INT_MASK) << BMI_IC_FROM_INT_SHIFT;
598 tmp |= (cfg->int_context.size / PORT_IC_OFFSET_UNITS) &
600 iowrite32be(tmp, ®s->fmbm_ticp);
602 /* Frame attributes */
603 tmp = BMI_CMD_TX_MR_DEF;
604 tmp |= BMI_CMD_ATTR_ORDER;
605 tmp |= (u32)cfg->color << BMI_CMD_ATTR_COLOR_SHIFT;
606 iowrite32be(tmp, ®s->fmbm_tfca);
608 /* Dequeue NIA + enqueue NIA */
609 iowrite32be(NIA_ENG_QMI_DEQ, ®s->fmbm_tfdne);
610 iowrite32be(NIA_ENG_QMI_ENQ | NIA_ORDER_RESTOR, ®s->fmbm_tfene);
611 if (cfg->fmbm_tfne_has_features)
612 iowrite32be(!cfg->dflt_fqid ?
613 BMI_EBD_EN | NIA_BMI_AC_FETCH_ALL_FRAME :
614 NIA_BMI_AC_FETCH_ALL_FRAME, ®s->fmbm_tfne);
615 if (!cfg->dflt_fqid && cfg->dont_release_buf) {
616 iowrite32be(DFLT_FQ_ID, ®s->fmbm_tcfqid);
617 iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_TX_RELEASE,
619 if (cfg->fmbm_tfne_has_features)
620 iowrite32be(ioread32be(®s->fmbm_tfne) & ~BMI_EBD_EN,
624 /* Confirmation/error queues */
625 if (cfg->dflt_fqid || !cfg->dont_release_buf)
626 iowrite32be(cfg->dflt_fqid & DFLT_FQ_ID, ®s->fmbm_tcfqid);
627 iowrite32be((cfg->err_fqid & DFLT_FQ_ID), ®s->fmbm_tefqid);
632 static int init_qmi(struct fman_port *port)
634 struct fman_port_qmi_regs __iomem *regs = port->qmi_regs;
635 struct fman_port_cfg *cfg = port->cfg;
638 /* Rx port configuration */
639 if (port->port_type == FMAN_PORT_TYPE_RX) {
641 iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_RELEASE, ®s->fmqm_pnen);
645 /* Continue with Tx port configuration */
646 if (port->port_type == FMAN_PORT_TYPE_TX) {
648 iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_TX_RELEASE,
651 iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_TX, ®s->fmqm_pndn);
654 /* Dequeue Configuration register */
656 if (cfg->deq_high_priority)
657 tmp |= QMI_DEQ_CFG_PRI;
659 switch (cfg->deq_type) {
660 case FMAN_PORT_DEQ_BY_PRI:
661 tmp |= QMI_DEQ_CFG_TYPE1;
663 case FMAN_PORT_DEQ_ACTIVE_FQ:
664 tmp |= QMI_DEQ_CFG_TYPE2;
666 case FMAN_PORT_DEQ_ACTIVE_FQ_NO_ICS:
667 tmp |= QMI_DEQ_CFG_TYPE3;
673 switch (cfg->deq_prefetch_option) {
674 case FMAN_PORT_DEQ_NO_PREFETCH:
676 case FMAN_PORT_DEQ_PART_PREFETCH:
677 tmp |= QMI_DEQ_CFG_PREFETCH_PARTIAL;
679 case FMAN_PORT_DEQ_FULL_PREFETCH:
680 tmp |= QMI_DEQ_CFG_PREFETCH_FULL;
686 tmp |= (cfg->deq_sp & QMI_DEQ_CFG_SP_MASK) << QMI_DEQ_CFG_SP_SHIFT;
687 tmp |= cfg->deq_byte_cnt;
688 iowrite32be(tmp, ®s->fmqm_pndc);
693 static void stop_port_hwp(struct fman_port *port)
695 struct fman_port_hwp_regs __iomem *regs = port->hwp_regs;
698 iowrite32be(HWP_HXS_PCAC_PSTOP, ®s->fmpr_pcac);
701 (ioread32be(®s->fmpr_pcac) & HWP_HXS_PCAC_PSTAT))
704 pr_err("Timeout stopping HW Parser\n");
707 static void start_port_hwp(struct fman_port *port)
709 struct fman_port_hwp_regs __iomem *regs = port->hwp_regs;
712 iowrite32be(0, ®s->fmpr_pcac);
715 !(ioread32be(®s->fmpr_pcac) & HWP_HXS_PCAC_PSTAT))
718 pr_err("Timeout starting HW Parser\n");
721 static void init_hwp(struct fman_port *port)
723 struct fman_port_hwp_regs __iomem *regs = port->hwp_regs;
728 for (i = 0; i < HWP_HXS_COUNT; i++) {
729 /* enable HXS error reporting into FD[STATUS] PHE */
730 iowrite32be(0x00000000, ®s->pmda[i].ssa);
731 iowrite32be(0xffffffff, ®s->pmda[i].lcv);
734 /* Short packet padding removal from checksum calculation */
735 iowrite32be(HWP_HXS_SH_PAD_REM, ®s->pmda[HWP_HXS_TCP_OFFSET].ssa);
736 iowrite32be(HWP_HXS_SH_PAD_REM, ®s->pmda[HWP_HXS_UDP_OFFSET].ssa);
738 start_port_hwp(port);
741 static int init(struct fman_port *port)
745 /* Init BMI registers */
746 switch (port->port_type) {
747 case FMAN_PORT_TYPE_RX:
748 err = init_bmi_rx(port);
752 case FMAN_PORT_TYPE_TX:
753 err = init_bmi_tx(port);
762 /* Init QMI registers */
763 err = init_qmi(port);
770 static int set_bpools(const struct fman_port *port,
771 const struct fman_port_bpools *bp)
773 u32 __iomem *bp_reg, *bp_depl_reg;
776 bool grp_depl_used = false, rx_port;
778 switch (port->port_type) {
779 case FMAN_PORT_TYPE_RX:
780 max_bp_num = port->ext_pools_num;
782 bp_reg = port->bmi_regs->rx.fmbm_ebmpi;
783 bp_depl_reg = &port->bmi_regs->rx.fmbm_mpd;
790 /* Check buffers are provided in ascending order */
791 for (i = 0; (i < (bp->count - 1) &&
792 (i < FMAN_PORT_MAX_EXT_POOLS_NUM - 1)); i++) {
793 if (bp->bpool[i].size > bp->bpool[i + 1].size)
798 /* Set up external buffers pools */
799 for (i = 0; i < bp->count; i++) {
800 tmp = BMI_EXT_BUF_POOL_VALID;
801 tmp |= ((u32)bp->bpool[i].bpid <<
802 BMI_EXT_BUF_POOL_ID_SHIFT) & BMI_EXT_BUF_POOL_ID_MASK;
805 if (bp->counters_enable)
806 tmp |= BMI_EXT_BUF_POOL_EN_COUNTER;
808 if (bp->bpool[i].is_backup)
809 tmp |= BMI_EXT_BUF_POOL_BACKUP;
811 tmp |= (u32)bp->bpool[i].size;
814 iowrite32be(tmp, &bp_reg[i]);
817 /* Clear unused pools */
818 for (i = bp->count; i < max_bp_num; i++)
819 iowrite32be(0, &bp_reg[i]);
821 /* Pools depletion */
823 for (i = 0; i < FMAN_PORT_MAX_EXT_POOLS_NUM; i++) {
824 if (bp->bpool[i].grp_bp_depleted) {
825 grp_depl_used = true;
826 tmp |= 0x80000000 >> i;
829 if (bp->bpool[i].single_bp_depleted)
834 tmp |= ((u32)bp->grp_bp_depleted_num - 1) <<
835 BMI_POOL_DEP_NUM_OF_POOLS_SHIFT;
837 iowrite32be(tmp, bp_depl_reg);
841 static bool is_init_done(struct fman_port_cfg *cfg)
843 /* Checks if FMan port driver parameters were initialized */
850 static int verify_size_of_fifo(struct fman_port *port)
852 u32 min_fifo_size_required = 0, opt_fifo_size_for_b2b = 0;
855 if (port->port_type == FMAN_PORT_TYPE_TX) {
856 min_fifo_size_required = (u32)
857 (roundup(port->max_frame_length,
858 FMAN_BMI_FIFO_UNITS) + (3 * FMAN_BMI_FIFO_UNITS));
860 min_fifo_size_required +=
861 port->cfg->tx_fifo_deq_pipeline_depth *
864 opt_fifo_size_for_b2b = min_fifo_size_required;
866 /* Add some margin for back-to-back capability to improve
867 * performance, allows the hardware to pipeline new frame dma
868 * while the previous frame not yet transmitted.
870 if (port->port_speed == 10000)
871 opt_fifo_size_for_b2b += 3 * FMAN_BMI_FIFO_UNITS;
873 opt_fifo_size_for_b2b += 2 * FMAN_BMI_FIFO_UNITS;
877 else if (port->port_type == FMAN_PORT_TYPE_RX) {
878 if (port->rev_info.major >= 6)
879 min_fifo_size_required = (u32)
880 (roundup(port->max_frame_length,
881 FMAN_BMI_FIFO_UNITS) +
882 (5 * FMAN_BMI_FIFO_UNITS));
883 /* 4 according to spec + 1 for FOF>0 */
885 min_fifo_size_required = (u32)
886 (roundup(min(port->max_frame_length,
887 port->rx_pools_params.largest_buf_size),
888 FMAN_BMI_FIFO_UNITS) +
889 (7 * FMAN_BMI_FIFO_UNITS));
891 opt_fifo_size_for_b2b = min_fifo_size_required;
893 /* Add some margin for back-to-back capability to improve
894 * performance,allows the hardware to pipeline new frame dma
895 * while the previous frame not yet transmitted.
897 if (port->port_speed == 10000)
898 opt_fifo_size_for_b2b += 8 * FMAN_BMI_FIFO_UNITS;
900 opt_fifo_size_for_b2b += 3 * FMAN_BMI_FIFO_UNITS;
903 WARN_ON(min_fifo_size_required <= 0);
904 WARN_ON(opt_fifo_size_for_b2b < min_fifo_size_required);
906 /* Verify the size */
907 if (port->fifo_bufs.num < min_fifo_size_required)
908 dev_dbg(port->dev, "%s: FIFO size should be enlarged to %d bytes\n",
909 __func__, min_fifo_size_required);
910 else if (port->fifo_bufs.num < opt_fifo_size_for_b2b)
911 dev_dbg(port->dev, "%s: For b2b processing,FIFO may be enlarged to %d bytes\n",
912 __func__, opt_fifo_size_for_b2b);
917 static int set_ext_buffer_pools(struct fman_port *port)
919 struct fman_ext_pools *ext_buf_pools = &port->cfg->ext_buf_pools;
920 struct fman_buf_pool_depletion *buf_pool_depletion =
921 &port->cfg->buf_pool_depletion;
922 u8 ordered_array[FMAN_PORT_MAX_EXT_POOLS_NUM];
923 u16 sizes_array[BM_MAX_NUM_OF_POOLS];
924 int i = 0, j = 0, err;
925 struct fman_port_bpools bpools;
927 memset(&ordered_array, 0, sizeof(u8) * FMAN_PORT_MAX_EXT_POOLS_NUM);
928 memset(&sizes_array, 0, sizeof(u16) * BM_MAX_NUM_OF_POOLS);
929 memcpy(&port->ext_buf_pools, ext_buf_pools,
930 sizeof(struct fman_ext_pools));
932 fman_sp_set_buf_pools_in_asc_order_of_buf_sizes(ext_buf_pools,
936 memset(&bpools, 0, sizeof(struct fman_port_bpools));
937 bpools.count = ext_buf_pools->num_of_pools_used;
938 bpools.counters_enable = true;
939 for (i = 0; i < ext_buf_pools->num_of_pools_used; i++) {
940 bpools.bpool[i].bpid = ordered_array[i];
941 bpools.bpool[i].size = sizes_array[ordered_array[i]];
944 /* save pools parameters for later use */
945 port->rx_pools_params.num_of_pools = ext_buf_pools->num_of_pools_used;
946 port->rx_pools_params.largest_buf_size =
947 sizes_array[ordered_array[ext_buf_pools->num_of_pools_used - 1]];
949 /* FMBM_RMPD reg. - pool depletion */
950 if (buf_pool_depletion->pools_grp_mode_enable) {
951 bpools.grp_bp_depleted_num = buf_pool_depletion->num_of_pools;
952 for (i = 0; i < port->bm_max_num_of_pools; i++) {
953 if (buf_pool_depletion->pools_to_consider[i]) {
954 for (j = 0; j < ext_buf_pools->
955 num_of_pools_used; j++) {
956 if (i == ordered_array[j]) {
958 grp_bp_depleted = true;
966 if (buf_pool_depletion->single_pool_mode_enable) {
967 for (i = 0; i < port->bm_max_num_of_pools; i++) {
968 if (buf_pool_depletion->
969 pools_to_consider_for_single_mode[i]) {
970 for (j = 0; j < ext_buf_pools->
971 num_of_pools_used; j++) {
972 if (i == ordered_array[j]) {
974 single_bp_depleted = true;
982 err = set_bpools(port, &bpools);
984 dev_err(port->dev, "%s: set_bpools() failed\n", __func__);
991 static int init_low_level_driver(struct fman_port *port)
993 struct fman_port_cfg *cfg = port->cfg;
996 switch (port->port_type) {
997 case FMAN_PORT_TYPE_RX:
998 cfg->err_mask = (RX_ERRS_TO_ENQ & ~cfg->discard_mask);
1004 tmp_val = (u32)((port->internal_buf_offset % OFFSET_UNITS) ?
1005 (port->internal_buf_offset / OFFSET_UNITS + 1) :
1006 (port->internal_buf_offset / OFFSET_UNITS));
1007 port->internal_buf_offset = (u8)(tmp_val * OFFSET_UNITS);
1008 port->cfg->int_buf_start_margin = port->internal_buf_offset;
1010 if (init(port) != 0) {
1011 dev_err(port->dev, "%s: fman port initialization failed\n",
1016 /* The code bellow is a trick so the FM will not release the buffer
1017 * to BM nor will try to enqueue the frame to QM
1019 if (port->port_type == FMAN_PORT_TYPE_TX) {
1020 if (!cfg->dflt_fqid && cfg->dont_release_buf) {
1021 /* override fmbm_tcfqid 0 with a false non-0 value.
1022 * This will force FM to act according to tfene.
1023 * Otherwise, if fmbm_tcfqid is 0 the FM will release
1024 * buffers to BM regardless of fmbm_tfene
1026 iowrite32be(0xFFFFFF, &port->bmi_regs->tx.fmbm_tcfqid);
1027 iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_TX_RELEASE,
1028 &port->bmi_regs->tx.fmbm_tfene);
1035 static int fill_soc_specific_params(struct fman_port *port)
1037 u32 bmi_max_fifo_size;
1039 bmi_max_fifo_size = fman_get_bmi_max_fifo_size(port->fm);
1040 port->max_port_fifo_size = MAX_PORT_FIFO_SIZE(bmi_max_fifo_size);
1041 port->bm_max_num_of_pools = 64;
1044 * P2041/P3041/P5020/P5040 - Major 3
1047 switch (port->rev_info.major) {
1050 port->max_num_of_ext_pools = 4;
1051 port->max_num_of_sub_portals = 12;
1055 port->max_num_of_ext_pools = 8;
1056 port->max_num_of_sub_portals = 16;
1060 dev_err(port->dev, "%s: Unsupported FMan version\n", __func__);
1067 static int get_dflt_fifo_deq_pipeline_depth(u8 major, enum fman_port_type type,
1071 case FMAN_PORT_TYPE_RX:
1072 case FMAN_PORT_TYPE_TX:
1089 static int get_dflt_num_of_tasks(u8 major, enum fman_port_type type,
1093 case FMAN_PORT_TYPE_RX:
1094 case FMAN_PORT_TYPE_TX:
1111 static int get_dflt_extra_num_of_tasks(u8 major, enum fman_port_type type,
1115 case FMAN_PORT_TYPE_RX:
1125 case FMAN_PORT_TYPE_TX:
1131 static int get_dflt_num_of_open_dmas(u8 major, enum fman_port_type type,
1138 case FMAN_PORT_TYPE_TX:
1144 case FMAN_PORT_TYPE_RX:
1155 case FMAN_PORT_TYPE_TX:
1156 case FMAN_PORT_TYPE_RX:
1170 static int get_dflt_extra_num_of_open_dmas(u8 major, enum fman_port_type type,
1179 case FMAN_PORT_TYPE_RX:
1180 case FMAN_PORT_TYPE_TX:
1190 static int get_dflt_num_of_fifo_bufs(u8 major, enum fman_port_type type,
1197 case FMAN_PORT_TYPE_TX:
1203 case FMAN_PORT_TYPE_RX:
1214 case FMAN_PORT_TYPE_TX:
1220 case FMAN_PORT_TYPE_RX:
1234 static void set_dflt_cfg(struct fman_port *port,
1235 struct fman_port_params *port_params)
1237 struct fman_port_cfg *cfg = port->cfg;
1239 cfg->dma_swap_data = FMAN_PORT_DMA_NO_SWAP;
1240 cfg->color = FMAN_PORT_COLOR_GREEN;
1241 cfg->rx_cut_end_bytes = DFLT_PORT_CUT_BYTES_FROM_END;
1242 cfg->rx_pri_elevation = BMI_PRIORITY_ELEVATION_LEVEL;
1243 cfg->rx_fifo_thr = BMI_FIFO_THRESHOLD;
1244 cfg->tx_fifo_low_comf_level = (5 * 1024);
1245 cfg->deq_type = FMAN_PORT_DEQ_BY_PRI;
1246 cfg->deq_prefetch_option = FMAN_PORT_DEQ_FULL_PREFETCH;
1247 cfg->tx_fifo_deq_pipeline_depth =
1248 BMI_DEQUEUE_PIPELINE_DEPTH(port->port_type, port->port_speed);
1249 cfg->deq_byte_cnt = QMI_BYTE_COUNT_LEVEL_CONTROL(port->port_type);
1251 cfg->rx_pri_elevation =
1252 DFLT_PORT_RX_FIFO_PRI_ELEVATION_LEV(port->max_port_fifo_size);
1253 port->cfg->rx_fifo_thr =
1254 DFLT_PORT_RX_FIFO_THRESHOLD(port->rev_info.major,
1255 port->max_port_fifo_size);
1257 if ((port->rev_info.major == 6) &&
1258 ((port->rev_info.minor == 0) || (port->rev_info.minor == 3)))
1259 cfg->errata_A006320 = true;
1261 /* Excessive Threshold register - exists for pre-FMv3 chips only */
1262 if (port->rev_info.major < 6)
1263 cfg->excessive_threshold_register = true;
1265 cfg->fmbm_tfne_has_features = true;
1267 cfg->buffer_prefix_content.data_align =
1268 DFLT_PORT_BUFFER_PREFIX_CONTEXT_DATA_ALIGN;
1271 static void set_rx_dflt_cfg(struct fman_port *port,
1272 struct fman_port_params *port_params)
1274 port->cfg->discard_mask = DFLT_PORT_ERRORS_TO_DISCARD;
1276 memcpy(&port->cfg->ext_buf_pools,
1277 &port_params->specific_params.rx_params.ext_buf_pools,
1278 sizeof(struct fman_ext_pools));
1279 port->cfg->err_fqid =
1280 port_params->specific_params.rx_params.err_fqid;
1281 port->cfg->dflt_fqid =
1282 port_params->specific_params.rx_params.dflt_fqid;
1283 port->cfg->pcd_base_fqid =
1284 port_params->specific_params.rx_params.pcd_base_fqid;
1285 port->cfg->pcd_fqs_count =
1286 port_params->specific_params.rx_params.pcd_fqs_count;
1289 static void set_tx_dflt_cfg(struct fman_port *port,
1290 struct fman_port_params *port_params,
1291 struct fman_port_dts_params *dts_params)
1293 port->cfg->tx_fifo_deq_pipeline_depth =
1294 get_dflt_fifo_deq_pipeline_depth(port->rev_info.major,
1297 port->cfg->err_fqid =
1298 port_params->specific_params.non_rx_params.err_fqid;
1300 (u8)(dts_params->qman_channel_id & QMI_DEQ_CFG_SUBPORTAL_MASK);
1301 port->cfg->dflt_fqid =
1302 port_params->specific_params.non_rx_params.dflt_fqid;
1303 port->cfg->deq_high_priority = true;
1308 * @port: Pointer to the port structure
1309 * @params: Pointer to data structure of parameters
1311 * Creates a descriptor for the FM PORT module.
1312 * The routine returns a pointer to the FM PORT object.
1313 * This descriptor must be passed as first parameter to all other FM PORT
1315 * No actual initialization or configuration of FM hardware is done by this
1318 * Return: 0 on success; Error code otherwise.
1320 int fman_port_config(struct fman_port *port, struct fman_port_params *params)
1322 void __iomem *base_addr = port->dts_params.base_addr;
1325 /* Allocate the FM driver's parameters structure */
1326 port->cfg = kzalloc(sizeof(*port->cfg), GFP_KERNEL);
1330 /* Initialize FM port parameters which will be kept by the driver */
1331 port->port_type = port->dts_params.type;
1332 port->port_speed = port->dts_params.speed;
1333 port->port_id = port->dts_params.id;
1334 port->fm = port->dts_params.fman;
1335 port->ext_pools_num = (u8)8;
1337 /* get FM revision */
1338 fman_get_revision(port->fm, &port->rev_info);
1340 err = fill_soc_specific_params(port);
1344 switch (port->port_type) {
1345 case FMAN_PORT_TYPE_RX:
1346 set_rx_dflt_cfg(port, params);
1348 case FMAN_PORT_TYPE_TX:
1349 set_tx_dflt_cfg(port, params, &port->dts_params);
1352 set_dflt_cfg(port, params);
1355 /* Continue with other parameters */
1356 /* set memory map pointers */
1357 port->bmi_regs = base_addr + BMI_PORT_REGS_OFFSET;
1358 port->qmi_regs = base_addr + QMI_PORT_REGS_OFFSET;
1359 port->hwp_regs = base_addr + HWP_PORT_REGS_OFFSET;
1361 port->max_frame_length = DFLT_PORT_MAX_FRAME_LENGTH;
1362 /* resource distribution. */
1364 port->fifo_bufs.num =
1365 get_dflt_num_of_fifo_bufs(port->rev_info.major, port->port_type,
1366 port->port_speed) * FMAN_BMI_FIFO_UNITS;
1367 port->fifo_bufs.extra =
1368 DFLT_PORT_EXTRA_NUM_OF_FIFO_BUFS * FMAN_BMI_FIFO_UNITS;
1370 port->open_dmas.num =
1371 get_dflt_num_of_open_dmas(port->rev_info.major,
1372 port->port_type, port->port_speed);
1373 port->open_dmas.extra =
1374 get_dflt_extra_num_of_open_dmas(port->rev_info.major,
1375 port->port_type, port->port_speed);
1377 get_dflt_num_of_tasks(port->rev_info.major,
1378 port->port_type, port->port_speed);
1380 get_dflt_extra_num_of_tasks(port->rev_info.major,
1381 port->port_type, port->port_speed);
1383 /* FM_HEAVY_TRAFFIC_SEQUENCER_HANG_ERRATA_FMAN_A006981 errata
1386 if ((port->rev_info.major == 6) && (port->rev_info.minor == 0) &&
1387 (((port->port_type == FMAN_PORT_TYPE_TX) &&
1388 (port->port_speed == 1000)))) {
1389 port->open_dmas.num = 16;
1390 port->open_dmas.extra = 0;
1393 if (port->rev_info.major >= 6 &&
1394 port->port_type == FMAN_PORT_TYPE_TX &&
1395 port->port_speed == 1000) {
1396 /* FM_WRONG_RESET_VALUES_ERRATA_FMAN_A005127 Errata
1402 iowrite32be(reg, &port->bmi_regs->tx.fmbm_tfp);
1411 EXPORT_SYMBOL(fman_port_config);
1414 * fman_port_use_kg_hash
1415 * port: A pointer to a FM Port module.
1416 * Sets the HW KeyGen or the BMI as HW Parser next engine, enabling
1417 * or bypassing the KeyGen hashing of Rx traffic
1419 void fman_port_use_kg_hash(struct fman_port *port, bool enable)
1422 /* After the Parser frames go to KeyGen */
1423 iowrite32be(NIA_ENG_HWK, &port->bmi_regs->rx.fmbm_rfpne);
1425 /* After the Parser frames go to BMI */
1426 iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_ENQ_FRAME,
1427 &port->bmi_regs->rx.fmbm_rfpne);
1429 EXPORT_SYMBOL(fman_port_use_kg_hash);
1433 * port: A pointer to a FM Port module.
1434 * Initializes the FM PORT module by defining the software structure and
1435 * configuring the hardware registers.
1437 * Return: 0 on success; Error code otherwise.
1439 int fman_port_init(struct fman_port *port)
1441 struct fman_port_init_params params;
1442 struct fman_keygen *keygen;
1443 struct fman_port_cfg *cfg;
1446 if (is_init_done(port->cfg))
1449 err = fman_sp_build_buffer_struct(&port->cfg->int_context,
1450 &port->cfg->buffer_prefix_content,
1451 &port->cfg->buf_margins,
1452 &port->buffer_offsets,
1453 &port->internal_buf_offset);
1459 if (port->port_type == FMAN_PORT_TYPE_RX) {
1460 /* Call the external Buffer routine which also checks fifo
1461 * size and updates it if necessary
1463 /* define external buffer pools and pool depletion */
1464 err = set_ext_buffer_pools(port);
1467 /* check if the largest external buffer pool is large enough */
1468 if (cfg->buf_margins.start_margins + MIN_EXT_BUF_SIZE +
1469 cfg->buf_margins.end_margins >
1470 port->rx_pools_params.largest_buf_size) {
1471 dev_err(port->dev, "%s: buf_margins.start_margins (%d) + minimum buf size (64) + buf_margins.end_margins (%d) is larger than maximum external buffer size (%d)\n",
1472 __func__, cfg->buf_margins.start_margins,
1473 cfg->buf_margins.end_margins,
1474 port->rx_pools_params.largest_buf_size);
1479 /* Call FM module routine for communicating parameters */
1480 memset(¶ms, 0, sizeof(params));
1481 params.port_id = port->port_id;
1482 params.port_type = port->port_type;
1483 params.port_speed = port->port_speed;
1484 params.num_of_tasks = (u8)port->tasks.num;
1485 params.num_of_extra_tasks = (u8)port->tasks.extra;
1486 params.num_of_open_dmas = (u8)port->open_dmas.num;
1487 params.num_of_extra_open_dmas = (u8)port->open_dmas.extra;
1489 if (port->fifo_bufs.num) {
1490 err = verify_size_of_fifo(port);
1494 params.size_of_fifo = port->fifo_bufs.num;
1495 params.extra_size_of_fifo = port->fifo_bufs.extra;
1496 params.deq_pipeline_depth = port->cfg->tx_fifo_deq_pipeline_depth;
1497 params.max_frame_length = port->max_frame_length;
1499 err = fman_set_port_params(port->fm, ¶ms);
1503 err = init_low_level_driver(port);
1507 if (port->cfg->pcd_fqs_count) {
1508 keygen = port->dts_params.fman->keygen;
1509 err = keygen_port_hashing_init(keygen, port->port_id,
1510 port->cfg->pcd_base_fqid,
1511 port->cfg->pcd_fqs_count);
1515 fman_port_use_kg_hash(port, true);
1523 EXPORT_SYMBOL(fman_port_init);
1526 * fman_port_cfg_buf_prefix_content
1527 * @port A pointer to a FM Port module.
1528 * @buffer_prefix_content A structure of parameters describing
1529 * the structure of the buffer.
1531 * Start margin - offset of data from
1532 * start of external buffer.
1533 * Defines the structure, size and content of the application buffer.
1534 * The prefix, in Tx ports, if 'pass_prs_result', the application should set
1535 * a value to their offsets in the prefix of the FM will save the first
1536 * 'priv_data_size', than, depending on 'pass_prs_result' and
1537 * 'pass_time_stamp', copy parse result and timeStamp, and the packet itself
1538 * (in this order), to the application buffer, and to offset.
1539 * Calling this routine changes the buffer margins definitions in the internal
1540 * driver data base from its default configuration:
1541 * Data size: [DEFAULT_PORT_BUFFER_PREFIX_CONTENT_PRIV_DATA_SIZE]
1542 * Pass Parser result: [DEFAULT_PORT_BUFFER_PREFIX_CONTENT_PASS_PRS_RESULT].
1543 * Pass timestamp: [DEFAULT_PORT_BUFFER_PREFIX_CONTENT_PASS_TIME_STAMP].
1544 * May be used for all ports
1546 * Allowed only following fman_port_config() and before fman_port_init().
1548 * Return: 0 on success; Error code otherwise.
1550 int fman_port_cfg_buf_prefix_content(struct fman_port *port,
1551 struct fman_buffer_prefix_content *
1552 buffer_prefix_content)
1554 if (is_init_done(port->cfg))
1557 memcpy(&port->cfg->buffer_prefix_content,
1558 buffer_prefix_content,
1559 sizeof(struct fman_buffer_prefix_content));
1560 /* if data_align was not initialized by user,
1561 * we return to driver's default
1563 if (!port->cfg->buffer_prefix_content.data_align)
1564 port->cfg->buffer_prefix_content.data_align =
1565 DFLT_PORT_BUFFER_PREFIX_CONTEXT_DATA_ALIGN;
1569 EXPORT_SYMBOL(fman_port_cfg_buf_prefix_content);
1573 * port: A pointer to a FM Port module.
1575 * Gracefully disable an FM port. The port will not start new tasks after all
1576 * tasks associated with the port are terminated.
1578 * This is a blocking routine, it returns after port is gracefully stopped,
1579 * i.e. the port will not except new frames, but it will finish all frames
1580 * or tasks which were already began.
1581 * Allowed only following fman_port_init().
1583 * Return: 0 on success; Error code otherwise.
1585 int fman_port_disable(struct fman_port *port)
1587 u32 __iomem *bmi_cfg_reg, *bmi_status_reg;
1589 bool rx_port, failure = false;
1592 if (!is_init_done(port->cfg))
1595 switch (port->port_type) {
1596 case FMAN_PORT_TYPE_RX:
1597 bmi_cfg_reg = &port->bmi_regs->rx.fmbm_rcfg;
1598 bmi_status_reg = &port->bmi_regs->rx.fmbm_rst;
1601 case FMAN_PORT_TYPE_TX:
1602 bmi_cfg_reg = &port->bmi_regs->tx.fmbm_tcfg;
1603 bmi_status_reg = &port->bmi_regs->tx.fmbm_tst;
1612 tmp = ioread32be(&port->qmi_regs->fmqm_pnc) & ~QMI_PORT_CFG_EN;
1613 iowrite32be(tmp, &port->qmi_regs->fmqm_pnc);
1615 /* Wait for QMI to finish FD handling */
1619 tmp = ioread32be(&port->qmi_regs->fmqm_pns);
1620 } while ((tmp & QMI_PORT_STATUS_DEQ_FD_BSY) && --count);
1629 tmp = ioread32be(bmi_cfg_reg) & ~BMI_PORT_CFG_EN;
1630 iowrite32be(tmp, bmi_cfg_reg);
1632 /* Wait for graceful stop end */
1636 tmp = ioread32be(bmi_status_reg);
1637 } while ((tmp & BMI_PORT_STATUS_BSY) && --count);
1645 dev_dbg(port->dev, "%s: FMan Port[%d]: BMI or QMI is Busy. Port forced down\n",
1646 __func__, port->port_id);
1650 EXPORT_SYMBOL(fman_port_disable);
1654 * port: A pointer to a FM Port module.
1656 * A runtime routine provided to allow disable/enable of port.
1658 * Allowed only following fman_port_init().
1660 * Return: 0 on success; Error code otherwise.
1662 int fman_port_enable(struct fman_port *port)
1664 u32 __iomem *bmi_cfg_reg;
1668 if (!is_init_done(port->cfg))
1671 switch (port->port_type) {
1672 case FMAN_PORT_TYPE_RX:
1673 bmi_cfg_reg = &port->bmi_regs->rx.fmbm_rcfg;
1676 case FMAN_PORT_TYPE_TX:
1677 bmi_cfg_reg = &port->bmi_regs->tx.fmbm_tcfg;
1686 tmp = ioread32be(&port->qmi_regs->fmqm_pnc) | QMI_PORT_CFG_EN;
1687 iowrite32be(tmp, &port->qmi_regs->fmqm_pnc);
1691 tmp = ioread32be(bmi_cfg_reg) | BMI_PORT_CFG_EN;
1692 iowrite32be(tmp, bmi_cfg_reg);
1696 EXPORT_SYMBOL(fman_port_enable);
1700 * dev: FMan Port OF device pointer
1702 * Bind to a specific FMan Port.
1704 * Allowed only after the port was created.
1706 * Return: A pointer to the FMan port device.
1708 struct fman_port *fman_port_bind(struct device *dev)
1710 return (struct fman_port *)(dev_get_drvdata(get_device(dev)));
1712 EXPORT_SYMBOL(fman_port_bind);
1715 * fman_port_get_qman_channel_id
1716 * port: Pointer to the FMan port devuce
1718 * Get the QMan channel ID for the specific port
1720 * Return: QMan channel ID
1722 u32 fman_port_get_qman_channel_id(struct fman_port *port)
1724 return port->dts_params.qman_channel_id;
1726 EXPORT_SYMBOL(fman_port_get_qman_channel_id);
1729 * fman_port_get_device
1730 * port: Pointer to the FMan port device
1732 * Get the 'struct device' associated to the specified FMan port device
1734 * Return: pointer to associated 'struct device'
1736 struct device *fman_port_get_device(struct fman_port *port)
1740 EXPORT_SYMBOL(fman_port_get_device);
1742 int fman_port_get_hash_result_offset(struct fman_port *port, u32 *offset)
1744 if (port->buffer_offsets.hash_result_offset == ILLEGAL_BASE)
1747 *offset = port->buffer_offsets.hash_result_offset;
1751 EXPORT_SYMBOL(fman_port_get_hash_result_offset);
1753 int fman_port_get_tstamp(struct fman_port *port, const void *data, u64 *tstamp)
1755 if (port->buffer_offsets.time_stamp_offset == ILLEGAL_BASE)
1758 *tstamp = be64_to_cpu(*(__be64 *)(data +
1759 port->buffer_offsets.time_stamp_offset));
1763 EXPORT_SYMBOL(fman_port_get_tstamp);
1765 static int fman_port_probe(struct platform_device *of_dev)
1767 struct fman_port *port;
1769 struct device_node *fm_node, *port_node;
1770 struct platform_device *fm_pdev;
1771 struct resource res;
1772 struct resource *dev_res;
1775 enum fman_port_type port_type;
1779 port = kzalloc(sizeof(*port), GFP_KERNEL);
1783 port->dev = &of_dev->dev;
1785 port_node = of_node_get(of_dev->dev.of_node);
1787 /* Get the FM node */
1788 fm_node = of_get_parent(port_node);
1790 dev_err(port->dev, "%s: of_get_parent() failed\n", __func__);
1795 fm_pdev = of_find_device_by_node(fm_node);
1796 of_node_put(fm_node);
1802 fman = dev_get_drvdata(&fm_pdev->dev);
1808 err = of_property_read_u32(port_node, "cell-index", &val);
1810 dev_err(port->dev, "%s: reading cell-index for %pOF failed\n",
1811 __func__, port_node);
1816 port->dts_params.id = port_id;
1818 if (of_device_is_compatible(port_node, "fsl,fman-v3-port-tx")) {
1819 port_type = FMAN_PORT_TYPE_TX;
1821 if (of_find_property(port_node, "fsl,fman-10g-port", &lenp))
1824 } else if (of_device_is_compatible(port_node, "fsl,fman-v2-port-tx")) {
1825 if (port_id >= TX_10G_PORT_BASE)
1829 port_type = FMAN_PORT_TYPE_TX;
1831 } else if (of_device_is_compatible(port_node, "fsl,fman-v3-port-rx")) {
1832 port_type = FMAN_PORT_TYPE_RX;
1834 if (of_find_property(port_node, "fsl,fman-10g-port", &lenp))
1837 } else if (of_device_is_compatible(port_node, "fsl,fman-v2-port-rx")) {
1838 if (port_id >= RX_10G_PORT_BASE)
1842 port_type = FMAN_PORT_TYPE_RX;
1845 dev_err(port->dev, "%s: Illegal port type\n", __func__);
1850 port->dts_params.type = port_type;
1851 port->dts_params.speed = port_speed;
1853 if (port_type == FMAN_PORT_TYPE_TX) {
1854 u32 qman_channel_id;
1856 qman_channel_id = fman_get_qman_channel_id(fman, port_id);
1857 if (qman_channel_id == 0) {
1858 dev_err(port->dev, "%s: incorrect qman-channel-id\n",
1863 port->dts_params.qman_channel_id = qman_channel_id;
1866 err = of_address_to_resource(port_node, 0, &res);
1868 dev_err(port->dev, "%s: of_address_to_resource() failed\n",
1874 port->dts_params.fman = fman;
1876 of_node_put(port_node);
1878 dev_res = __devm_request_region(port->dev, &res, res.start,
1879 resource_size(&res), "fman-port");
1881 dev_err(port->dev, "%s: __devm_request_region() failed\n",
1887 port->dts_params.base_addr = devm_ioremap(port->dev, res.start,
1888 resource_size(&res));
1889 if (!port->dts_params.base_addr)
1890 dev_err(port->dev, "%s: devm_ioremap() failed\n", __func__);
1892 dev_set_drvdata(&of_dev->dev, port);
1897 of_node_put(port_node);
1903 static const struct of_device_id fman_port_match[] = {
1904 {.compatible = "fsl,fman-v3-port-rx"},
1905 {.compatible = "fsl,fman-v2-port-rx"},
1906 {.compatible = "fsl,fman-v3-port-tx"},
1907 {.compatible = "fsl,fman-v2-port-tx"},
1911 MODULE_DEVICE_TABLE(of, fman_port_match);
1913 static struct platform_driver fman_port_driver = {
1915 .name = "fsl-fman-port",
1916 .of_match_table = fman_port_match,
1918 .probe = fman_port_probe,
1921 static int __init fman_port_load(void)
1925 pr_debug("FSL DPAA FMan driver\n");
1927 err = platform_driver_register(&fman_port_driver);
1929 pr_err("Error, platform_driver_register() = %d\n", err);
1933 module_init(fman_port_load);
1935 static void __exit fman_port_unload(void)
1937 platform_driver_unregister(&fman_port_driver);
1939 module_exit(fman_port_unload);
1941 MODULE_LICENSE("Dual BSD/GPL");
1942 MODULE_DESCRIPTION("Freescale DPAA Frame Manager Port driver");