1/* 2 * Copyright 2008-2015 Freescale Semiconductor Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 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. 8 * * Redistributions in binary form must reproduce the above copyright 9 * notice, this list of conditions and the following disclaimer in the 10 * documentation and/or other materials provided with the distribution. 11 * * Neither the name of Freescale Semiconductor nor the 12 * names of its contributors may be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * 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 19 * later version. 20 * 21 * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY 22 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24 * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 28 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33#ifndef __FM_H 34#define __FM_H 35 36#include <linux/io.h> 37#include <linux/interrupt.h> 38#include <linux/of_irq.h> 39 40/* FM Frame descriptor macros */ 41/* Frame queue Context Override */ 42#define FM_FD_CMD_FCO 0x80000000 43#define FM_FD_CMD_RPD 0x40000000 /* Read Prepended Data */ 44#define FM_FD_CMD_UPD 0x20000000 /* Update Prepended Data */ 45#define FM_FD_CMD_DTC 0x10000000 /* Do L4 Checksum */ 46 47/* TX-Port: Unsupported Format */ 48#define FM_FD_ERR_UNSUPPORTED_FORMAT 0x04000000 49/* TX Port: Length Error */ 50#define FM_FD_ERR_LENGTH 0x02000000 51#define FM_FD_ERR_DMA 0x01000000 /* DMA Data error */ 52 53/* IPR frame (not error) */ 54#define FM_FD_IPR 0x00000001 55/* IPR non-consistent-sp */ 56#define FM_FD_ERR_IPR_NCSP (0x00100000 | FM_FD_IPR) 57/* IPR error */ 58#define FM_FD_ERR_IPR (0x00200000 | FM_FD_IPR) 59/* IPR timeout */ 60#define FM_FD_ERR_IPR_TO (0x00300000 | FM_FD_IPR) 61/* TX Port: Length Error */ 62#define FM_FD_ERR_IPRE (FM_FD_ERR_IPR & ~FM_FD_IPR) 63 64/* Rx FIFO overflow, FCS error, code error, running disparity error 65 * (SGMII and TBI modes), FIFO parity error. PHY Sequence error, 66 * PHY error control character detected. 67 */ 68#define FM_FD_ERR_PHYSICAL 0x00080000 69/* Frame too long OR Frame size exceeds max_length_frame */ 70#define FM_FD_ERR_SIZE 0x00040000 71/* classification discard */ 72#define FM_FD_ERR_CLS_DISCARD 0x00020000 73/* Extract Out of Frame */ 74#define FM_FD_ERR_EXTRACTION 0x00008000 75/* No Scheme Selected */ 76#define FM_FD_ERR_NO_SCHEME 0x00004000 77/* Keysize Overflow */ 78#define FM_FD_ERR_KEYSIZE_OVERFLOW 0x00002000 79/* Frame color is red */ 80#define FM_FD_ERR_COLOR_RED 0x00000800 81/* Frame color is yellow */ 82#define FM_FD_ERR_COLOR_YELLOW 0x00000400 83/* Parser Time out Exceed */ 84#define FM_FD_ERR_PRS_TIMEOUT 0x00000080 85/* Invalid Soft Parser instruction */ 86#define FM_FD_ERR_PRS_ILL_INSTRUCT 0x00000040 87/* Header error was identified during parsing */ 88#define FM_FD_ERR_PRS_HDR_ERR 0x00000020 89/* Frame parsed beyind 256 first bytes */ 90#define FM_FD_ERR_BLOCK_LIMIT_EXCEEDED 0x00000008 91 92/* non Frame-Manager error */ 93#define FM_FD_RX_STATUS_ERR_NON_FM 0x00400000 94 95/* FMan driver defines */ 96#define FMAN_BMI_FIFO_UNITS 0x100 97#define OFFSET_UNITS 16 98 99/* BMan defines */ 100#define BM_MAX_NUM_OF_POOLS 64 /* Buffers pools */ 101#define FMAN_PORT_MAX_EXT_POOLS_NUM 8 /* External BM pools per Rx port */ 102 103struct fman; /* FMan data */ 104 105/* Enum for defining port types */ 106enum fman_port_type { 107 FMAN_PORT_TYPE_TX = 0, /* TX Port */ 108 FMAN_PORT_TYPE_RX, /* RX Port */ 109}; 110 111struct fman_rev_info { 112 u8 major; /* Major revision */ 113 u8 minor; /* Minor revision */ 114}; 115 116enum fman_exceptions { 117 FMAN_EX_DMA_BUS_ERROR = 0, /* DMA bus error. */ 118 FMAN_EX_DMA_READ_ECC, /* Read Buffer ECC error */ 119 FMAN_EX_DMA_SYSTEM_WRITE_ECC, /* Write Buffer ECC err on sys side */ 120 FMAN_EX_DMA_FM_WRITE_ECC, /* Write Buffer ECC error on FM side */ 121 FMAN_EX_DMA_SINGLE_PORT_ECC, /* Single Port ECC error on FM side */ 122 FMAN_EX_FPM_STALL_ON_TASKS, /* Stall of tasks on FPM */ 123 FMAN_EX_FPM_SINGLE_ECC, /* Single ECC on FPM. */ 124 FMAN_EX_FPM_DOUBLE_ECC, /* Double ECC error on FPM ram access */ 125 FMAN_EX_QMI_SINGLE_ECC, /* Single ECC on QMI. */ 126 FMAN_EX_QMI_DOUBLE_ECC, /* Double bit ECC occurred on QMI */ 127 FMAN_EX_QMI_DEQ_FROM_UNKNOWN_PORTID,/* DeQ from unknown port id */ 128 FMAN_EX_BMI_LIST_RAM_ECC, /* Linked List RAM ECC error */ 129 FMAN_EX_BMI_STORAGE_PROFILE_ECC,/* storage profile */ 130 FMAN_EX_BMI_STATISTICS_RAM_ECC,/* Statistics RAM ECC Err Enable */ 131 FMAN_EX_BMI_DISPATCH_RAM_ECC, /* Dispatch RAM ECC Error Enable */ 132 FMAN_EX_IRAM_ECC, /* Double bit ECC occurred on IRAM */ 133 FMAN_EX_MURAM_ECC /* Double bit ECC occurred on MURAM */ 134}; 135 136/* Parse results memory layout */ 137struct fman_prs_result { 138 u8 lpid; /* Logical port id */ 139 u8 shimr; /* Shim header result */ 140 __be16 l2r; /* Layer 2 result */ 141 __be16 l3r; /* Layer 3 result */ 142 u8 l4r; /* Layer 4 result */ 143 u8 cplan; /* Classification plan id */ 144 __be16 nxthdr; /* Next Header */ 145 __be16 cksum; /* Running-sum */ 146 /* Flags&fragment-offset field of the last IP-header */ 147 __be16 flags_frag_off; 148 /* Routing type field of a IPV6 routing extension header */ 149 u8 route_type; 150 /* Routing Extension Header Present; last bit is IP valid */ 151 u8 rhp_ip_valid; 152 u8 shim_off[2]; /* Shim offset */ 153 u8 ip_pid_off; /* IP PID (last IP-proto) offset */ 154 u8 eth_off; /* ETH offset */ 155 u8 llc_snap_off; /* LLC_SNAP offset */ 156 u8 vlan_off[2]; /* VLAN offset */ 157 u8 etype_off; /* ETYPE offset */ 158 u8 pppoe_off; /* PPP offset */ 159 u8 mpls_off[2]; /* MPLS offset */ 160 u8 ip_off[2]; /* IP offset */ 161 u8 gre_off; /* GRE offset */ 162 u8 l4_off; /* Layer 4 offset */ 163 u8 nxthdr_off; /* Parser end point */ 164}; 165 166/* A structure for defining buffer prefix area content. */ 167struct fman_buffer_prefix_content { 168 /* Number of bytes to be left at the beginning of the external 169 * buffer; Note that the private-area will start from the base 170 * of the buffer address. 171 */ 172 u16 priv_data_size; 173 /* true to pass the parse result to/from the FM; 174 * User may use FM_PORT_GetBufferPrsResult() in 175 * order to get the parser-result from a buffer. 176 */ 177 bool pass_prs_result; 178 /* true to pass the timeStamp to/from the FM User */ 179 bool pass_time_stamp; 180 /* true to pass the KG hash result to/from the FM User may 181 * use FM_PORT_GetBufferHashResult() in order to get the 182 * parser-result from a buffer. 183 */ 184 bool pass_hash_result; 185 /* Add all other Internal-Context information: AD, 186 * hash-result, key, etc. 187 */ 188 u16 data_align; 189}; 190 191/* A structure of information about each of the external 192 * buffer pools used by a port or storage-profile. 193 */ 194struct fman_ext_pool_params { 195 u8 id; /* External buffer pool id */ 196 u16 size; /* External buffer pool buffer size */ 197}; 198 199/* A structure for informing the driver about the external 200 * buffer pools allocated in the BM and used by a port or a 201 * storage-profile. 202 */ 203struct fman_ext_pools { 204 u8 num_of_pools_used; /* Number of pools use by this port */ 205 struct fman_ext_pool_params ext_buf_pool[FMAN_PORT_MAX_EXT_POOLS_NUM]; 206 /* Parameters for each port */ 207}; 208 209/* A structure for defining BM pool depletion criteria */ 210struct fman_buf_pool_depletion { 211 /* select mode in which pause frames will be sent after a 212 * number of pools (all together!) are depleted 213 */ 214 bool pools_grp_mode_enable; 215 /* the number of depleted pools that will invoke pause 216 * frames transmission. 217 */ 218 u8 num_of_pools; 219 /* For each pool, true if it should be considered for 220 * depletion (Note - this pool must be used by this port!). 221 */ 222 bool pools_to_consider[BM_MAX_NUM_OF_POOLS]; 223 /* select mode in which pause frames will be sent 224 * after a single-pool is depleted; 225 */ 226 bool single_pool_mode_enable; 227 /* For each pool, true if it should be considered 228 * for depletion (Note - this pool must be used by this port!) 229 */ 230 bool pools_to_consider_for_single_mode[BM_MAX_NUM_OF_POOLS]; 231}; 232 233/* Enum for inter-module interrupts registration */ 234enum fman_event_modules { 235 FMAN_MOD_MAC = 0, /* MAC event */ 236 FMAN_MOD_FMAN_CTRL, /* FMAN Controller */ 237 FMAN_MOD_DUMMY_LAST 238}; 239 240/* Enum for interrupts types */ 241enum fman_intr_type { 242 FMAN_INTR_TYPE_ERR, 243 FMAN_INTR_TYPE_NORMAL 244}; 245 246/* Enum for inter-module interrupts registration */ 247enum fman_inter_module_event { 248 FMAN_EV_ERR_MAC0 = 0, /* MAC 0 error event */ 249 FMAN_EV_ERR_MAC1, /* MAC 1 error event */ 250 FMAN_EV_ERR_MAC2, /* MAC 2 error event */ 251 FMAN_EV_ERR_MAC3, /* MAC 3 error event */ 252 FMAN_EV_ERR_MAC4, /* MAC 4 error event */ 253 FMAN_EV_ERR_MAC5, /* MAC 5 error event */ 254 FMAN_EV_ERR_MAC6, /* MAC 6 error event */ 255 FMAN_EV_ERR_MAC7, /* MAC 7 error event */ 256 FMAN_EV_ERR_MAC8, /* MAC 8 error event */ 257 FMAN_EV_ERR_MAC9, /* MAC 9 error event */ 258 FMAN_EV_MAC0, /* MAC 0 event (Magic packet detection) */ 259 FMAN_EV_MAC1, /* MAC 1 event (Magic packet detection) */ 260 FMAN_EV_MAC2, /* MAC 2 (Magic packet detection) */ 261 FMAN_EV_MAC3, /* MAC 3 (Magic packet detection) */ 262 FMAN_EV_MAC4, /* MAC 4 (Magic packet detection) */ 263 FMAN_EV_MAC5, /* MAC 5 (Magic packet detection) */ 264 FMAN_EV_MAC6, /* MAC 6 (Magic packet detection) */ 265 FMAN_EV_MAC7, /* MAC 7 (Magic packet detection) */ 266 FMAN_EV_MAC8, /* MAC 8 event (Magic packet detection) */ 267 FMAN_EV_MAC9, /* MAC 9 event (Magic packet detection) */ 268 FMAN_EV_FMAN_CTRL_0, /* Fman controller event 0 */ 269 FMAN_EV_FMAN_CTRL_1, /* Fman controller event 1 */ 270 FMAN_EV_FMAN_CTRL_2, /* Fman controller event 2 */ 271 FMAN_EV_FMAN_CTRL_3, /* Fman controller event 3 */ 272 FMAN_EV_CNT 273}; 274 275struct fman_intr_src { 276 void (*isr_cb)(void *src_arg); 277 void *src_handle; 278}; 279 280/** fman_exceptions_cb 281 * fman - Pointer to FMan 282 * exception - The exception. 283 * 284 * Exceptions user callback routine, will be called upon an exception 285 * passing the exception identification. 286 * 287 * Return: irq status 288 */ 289typedef irqreturn_t (fman_exceptions_cb)(struct fman *fman, 290 enum fman_exceptions exception); 291/** fman_bus_error_cb 292 * fman - Pointer to FMan 293 * port_id - Port id 294 * addr - Address that caused the error 295 * tnum - Owner of error 296 * liodn - Logical IO device number 297 * 298 * Bus error user callback routine, will be called upon bus error, 299 * passing parameters describing the errors and the owner. 300 * 301 * Return: IRQ status 302 */ 303typedef irqreturn_t (fman_bus_error_cb)(struct fman *fman, u8 port_id, 304 u64 addr, u8 tnum, u16 liodn); 305 306/* Structure that holds information received from device tree */ 307struct fman_dts_params { 308 void __iomem *base_addr; /* FMan virtual address */ 309 struct resource *res; /* FMan memory resource */ 310 u8 id; /* FMan ID */ 311 312 int err_irq; /* FMan Error IRQ */ 313 314 u16 clk_freq; /* FMan clock freq (In Mhz) */ 315 316 u32 qman_channel_base; /* QMan channels base */ 317 u32 num_of_qman_channels; /* Number of QMan channels */ 318 319 struct resource muram_res; /* MURAM resource */ 320}; 321 322struct fman { 323 struct device *dev; 324 void __iomem *base_addr; 325 struct fman_intr_src intr_mng[FMAN_EV_CNT]; 326 327 struct fman_fpm_regs __iomem *fpm_regs; 328 struct fman_bmi_regs __iomem *bmi_regs; 329 struct fman_qmi_regs __iomem *qmi_regs; 330 struct fman_dma_regs __iomem *dma_regs; 331 struct fman_hwp_regs __iomem *hwp_regs; 332 struct fman_kg_regs __iomem *kg_regs; 333 fman_exceptions_cb *exception_cb; 334 fman_bus_error_cb *bus_error_cb; 335 /* Spinlock for FMan use */ 336 spinlock_t spinlock; 337 struct fman_state_struct *state; 338 339 struct fman_cfg *cfg; 340 struct muram_info *muram; 341 struct fman_keygen *keygen; 342 /* cam section in muram */ 343 unsigned long cam_offset; 344 size_t cam_size; 345 /* Fifo in MURAM */ 346 unsigned long fifo_offset; 347 size_t fifo_size; 348 349 u32 liodn_base[64]; 350 u32 liodn_offset[64]; 351 352 struct fman_dts_params dts_params; 353}; 354 355/* Structure for port-FM communication during fman_port_init. */ 356struct fman_port_init_params { 357 u8 port_id; /* port Id */ 358 enum fman_port_type port_type; /* Port type */ 359 u16 port_speed; /* Port speed */ 360 u16 liodn_offset; /* Port's requested resource */ 361 u8 num_of_tasks; /* Port's requested resource */ 362 u8 num_of_extra_tasks; /* Port's requested resource */ 363 u8 num_of_open_dmas; /* Port's requested resource */ 364 u8 num_of_extra_open_dmas; /* Port's requested resource */ 365 u32 size_of_fifo; /* Port's requested resource */ 366 u32 extra_size_of_fifo; /* Port's requested resource */ 367 u8 deq_pipeline_depth; /* Port's requested resource */ 368 u16 max_frame_length; /* Port's max frame length. */ 369 u16 liodn_base; 370 /* LIODN base for this port, to be used together with LIODN offset. */ 371}; 372 373void fman_get_revision(struct fman *fman, struct fman_rev_info *rev_info); 374 375void fman_register_intr(struct fman *fman, enum fman_event_modules mod, 376 u8 mod_id, enum fman_intr_type intr_type, 377 void (*f_isr)(void *h_src_arg), void *h_src_arg); 378 379void fman_unregister_intr(struct fman *fman, enum fman_event_modules mod, 380 u8 mod_id, enum fman_intr_type intr_type); 381 382int fman_set_port_params(struct fman *fman, 383 struct fman_port_init_params *port_params); 384 385int fman_reset_mac(struct fman *fman, u8 mac_id); 386 387u16 fman_get_clock_freq(struct fman *fman); 388 389u32 fman_get_bmi_max_fifo_size(struct fman *fman); 390 391int fman_set_mac_max_frame(struct fman *fman, u8 mac_id, u16 mfl); 392 393u32 fman_get_qman_channel_id(struct fman *fman, u32 port_id); 394 395struct resource *fman_get_mem_region(struct fman *fman); 396 397u16 fman_get_max_frm(void); 398 399int fman_get_rx_extra_headroom(void); 400 401struct fman *fman_bind(struct device *dev); 402 403#endif /* __FM_H */ 404