1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Atmel MACB Ethernet Controller driver 4 * 5 * Copyright (C) 2004-2006 Atmel Corporation 6 */ 7 #ifndef _MACB_H 8 #define _MACB_H 9 10 #include <linux/phylink.h> 11 #include <linux/ptp_clock_kernel.h> 12 #include <linux/net_tstamp.h> 13 #include <linux/interrupt.h> 14 15 #if defined(CONFIG_ARCH_DMA_ADDR_T_64BIT) || defined(CONFIG_MACB_USE_HWSTAMP) 16 #define MACB_EXT_DESC 17 #endif 18 19 #define MACB_GREGS_NBR 16 20 #define MACB_GREGS_VERSION 2 21 #define MACB_MAX_QUEUES 8 22 23 /* MACB register offsets */ 24 #define MACB_NCR 0x0000 /* Network Control */ 25 #define MACB_NCFGR 0x0004 /* Network Config */ 26 #define MACB_NSR 0x0008 /* Network Status */ 27 #define MACB_TAR 0x000c /* AT91RM9200 only */ 28 #define MACB_TCR 0x0010 /* AT91RM9200 only */ 29 #define MACB_TSR 0x0014 /* Transmit Status */ 30 #define MACB_RBQP 0x0018 /* RX Q Base Address */ 31 #define MACB_TBQP 0x001c /* TX Q Base Address */ 32 #define MACB_RSR 0x0020 /* Receive Status */ 33 #define MACB_ISR 0x0024 /* Interrupt Status */ 34 #define MACB_IER 0x0028 /* Interrupt Enable */ 35 #define MACB_IDR 0x002c /* Interrupt Disable */ 36 #define MACB_IMR 0x0030 /* Interrupt Mask */ 37 #define MACB_MAN 0x0034 /* PHY Maintenance */ 38 #define MACB_PTR 0x0038 39 #define MACB_PFR 0x003c 40 #define MACB_FTO 0x0040 41 #define MACB_SCF 0x0044 42 #define MACB_MCF 0x0048 43 #define MACB_FRO 0x004c 44 #define MACB_FCSE 0x0050 45 #define MACB_ALE 0x0054 46 #define MACB_DTF 0x0058 47 #define MACB_LCOL 0x005c 48 #define MACB_EXCOL 0x0060 49 #define MACB_TUND 0x0064 50 #define MACB_CSE 0x0068 51 #define MACB_RRE 0x006c 52 #define MACB_ROVR 0x0070 53 #define MACB_RSE 0x0074 54 #define MACB_ELE 0x0078 55 #define MACB_RJA 0x007c 56 #define MACB_USF 0x0080 57 #define MACB_STE 0x0084 58 #define MACB_RLE 0x0088 59 #define MACB_TPF 0x008c 60 #define MACB_HRB 0x0090 61 #define MACB_HRT 0x0094 62 #define MACB_SA1B 0x0098 63 #define MACB_SA1T 0x009c 64 #define MACB_SA2B 0x00a0 65 #define MACB_SA2T 0x00a4 66 #define MACB_SA3B 0x00a8 67 #define MACB_SA3T 0x00ac 68 #define MACB_SA4B 0x00b0 69 #define MACB_SA4T 0x00b4 70 #define MACB_TID 0x00b8 71 #define MACB_TPQ 0x00bc 72 #define MACB_USRIO 0x00c0 73 #define MACB_WOL 0x00c4 74 #define MACB_MID 0x00fc 75 #define MACB_TBQPH 0x04C8 76 #define MACB_RBQPH 0x04D4 77 78 /* GEM register offsets. */ 79 #define GEM_NCFGR 0x0004 /* Network Config */ 80 #define GEM_USRIO 0x000c /* User IO */ 81 #define GEM_DMACFG 0x0010 /* DMA Configuration */ 82 #define GEM_JML 0x0048 /* Jumbo Max Length */ 83 #define GEM_HRB 0x0080 /* Hash Bottom */ 84 #define GEM_HRT 0x0084 /* Hash Top */ 85 #define GEM_SA1B 0x0088 /* Specific1 Bottom */ 86 #define GEM_SA1T 0x008C /* Specific1 Top */ 87 #define GEM_SA2B 0x0090 /* Specific2 Bottom */ 88 #define GEM_SA2T 0x0094 /* Specific2 Top */ 89 #define GEM_SA3B 0x0098 /* Specific3 Bottom */ 90 #define GEM_SA3T 0x009C /* Specific3 Top */ 91 #define GEM_SA4B 0x00A0 /* Specific4 Bottom */ 92 #define GEM_SA4T 0x00A4 /* Specific4 Top */ 93 #define GEM_EFTSH 0x00e8 /* PTP Event Frame Transmitted Seconds Register 47:32 */ 94 #define GEM_EFRSH 0x00ec /* PTP Event Frame Received Seconds Register 47:32 */ 95 #define GEM_PEFTSH 0x00f0 /* PTP Peer Event Frame Transmitted Seconds Register 47:32 */ 96 #define GEM_PEFRSH 0x00f4 /* PTP Peer Event Frame Received Seconds Register 47:32 */ 97 #define GEM_OTX 0x0100 /* Octets transmitted */ 98 #define GEM_OCTTXL 0x0100 /* Octets transmitted [31:0] */ 99 #define GEM_OCTTXH 0x0104 /* Octets transmitted [47:32] */ 100 #define GEM_TXCNT 0x0108 /* Frames Transmitted counter */ 101 #define GEM_TXBCCNT 0x010c /* Broadcast Frames counter */ 102 #define GEM_TXMCCNT 0x0110 /* Multicast Frames counter */ 103 #define GEM_TXPAUSECNT 0x0114 /* Pause Frames Transmitted Counter */ 104 #define GEM_TX64CNT 0x0118 /* 64 byte Frames TX counter */ 105 #define GEM_TX65CNT 0x011c /* 65-127 byte Frames TX counter */ 106 #define GEM_TX128CNT 0x0120 /* 128-255 byte Frames TX counter */ 107 #define GEM_TX256CNT 0x0124 /* 256-511 byte Frames TX counter */ 108 #define GEM_TX512CNT 0x0128 /* 512-1023 byte Frames TX counter */ 109 #define GEM_TX1024CNT 0x012c /* 1024-1518 byte Frames TX counter */ 110 #define GEM_TX1519CNT 0x0130 /* 1519+ byte Frames TX counter */ 111 #define GEM_TXURUNCNT 0x0134 /* TX under run error counter */ 112 #define GEM_SNGLCOLLCNT 0x0138 /* Single Collision Frame Counter */ 113 #define GEM_MULTICOLLCNT 0x013c /* Multiple Collision Frame Counter */ 114 #define GEM_EXCESSCOLLCNT 0x0140 /* Excessive Collision Frame Counter */ 115 #define GEM_LATECOLLCNT 0x0144 /* Late Collision Frame Counter */ 116 #define GEM_TXDEFERCNT 0x0148 /* Deferred Transmission Frame Counter */ 117 #define GEM_TXCSENSECNT 0x014c /* Carrier Sense Error Counter */ 118 #define GEM_ORX 0x0150 /* Octets received */ 119 #define GEM_OCTRXL 0x0150 /* Octets received [31:0] */ 120 #define GEM_OCTRXH 0x0154 /* Octets received [47:32] */ 121 #define GEM_RXCNT 0x0158 /* Frames Received Counter */ 122 #define GEM_RXBROADCNT 0x015c /* Broadcast Frames Received Counter */ 123 #define GEM_RXMULTICNT 0x0160 /* Multicast Frames Received Counter */ 124 #define GEM_RXPAUSECNT 0x0164 /* Pause Frames Received Counter */ 125 #define GEM_RX64CNT 0x0168 /* 64 byte Frames RX Counter */ 126 #define GEM_RX65CNT 0x016c /* 65-127 byte Frames RX Counter */ 127 #define GEM_RX128CNT 0x0170 /* 128-255 byte Frames RX Counter */ 128 #define GEM_RX256CNT 0x0174 /* 256-511 byte Frames RX Counter */ 129 #define GEM_RX512CNT 0x0178 /* 512-1023 byte Frames RX Counter */ 130 #define GEM_RX1024CNT 0x017c /* 1024-1518 byte Frames RX Counter */ 131 #define GEM_RX1519CNT 0x0180 /* 1519+ byte Frames RX Counter */ 132 #define GEM_RXUNDRCNT 0x0184 /* Undersize Frames Received Counter */ 133 #define GEM_RXOVRCNT 0x0188 /* Oversize Frames Received Counter */ 134 #define GEM_RXJABCNT 0x018c /* Jabbers Received Counter */ 135 #define GEM_RXFCSCNT 0x0190 /* Frame Check Sequence Error Counter */ 136 #define GEM_RXLENGTHCNT 0x0194 /* Length Field Error Counter */ 137 #define GEM_RXSYMBCNT 0x0198 /* Symbol Error Counter */ 138 #define GEM_RXALIGNCNT 0x019c /* Alignment Error Counter */ 139 #define GEM_RXRESERRCNT 0x01a0 /* Receive Resource Error Counter */ 140 #define GEM_RXORCNT 0x01a4 /* Receive Overrun Counter */ 141 #define GEM_RXIPCCNT 0x01a8 /* IP header Checksum Error Counter */ 142 #define GEM_RXTCPCCNT 0x01ac /* TCP Checksum Error Counter */ 143 #define GEM_RXUDPCCNT 0x01b0 /* UDP Checksum Error Counter */ 144 #define GEM_TISUBN 0x01bc /* 1588 Timer Increment Sub-ns */ 145 #define GEM_TSH 0x01c0 /* 1588 Timer Seconds High */ 146 #define GEM_TSL 0x01d0 /* 1588 Timer Seconds Low */ 147 #define GEM_TN 0x01d4 /* 1588 Timer Nanoseconds */ 148 #define GEM_TA 0x01d8 /* 1588 Timer Adjust */ 149 #define GEM_TI 0x01dc /* 1588 Timer Increment */ 150 #define GEM_EFTSL 0x01e0 /* PTP Event Frame Tx Seconds Low */ 151 #define GEM_EFTN 0x01e4 /* PTP Event Frame Tx Nanoseconds */ 152 #define GEM_EFRSL 0x01e8 /* PTP Event Frame Rx Seconds Low */ 153 #define GEM_EFRN 0x01ec /* PTP Event Frame Rx Nanoseconds */ 154 #define GEM_PEFTSL 0x01f0 /* PTP Peer Event Frame Tx Secs Low */ 155 #define GEM_PEFTN 0x01f4 /* PTP Peer Event Frame Tx Ns */ 156 #define GEM_PEFRSL 0x01f8 /* PTP Peer Event Frame Rx Sec Low */ 157 #define GEM_PEFRN 0x01fc /* PTP Peer Event Frame Rx Ns */ 158 #define GEM_DCFG1 0x0280 /* Design Config 1 */ 159 #define GEM_DCFG2 0x0284 /* Design Config 2 */ 160 #define GEM_DCFG3 0x0288 /* Design Config 3 */ 161 #define GEM_DCFG4 0x028c /* Design Config 4 */ 162 #define GEM_DCFG5 0x0290 /* Design Config 5 */ 163 #define GEM_DCFG6 0x0294 /* Design Config 6 */ 164 #define GEM_DCFG7 0x0298 /* Design Config 7 */ 165 #define GEM_DCFG8 0x029C /* Design Config 8 */ 166 #define GEM_DCFG10 0x02A4 /* Design Config 10 */ 167 168 #define GEM_TXBDCTRL 0x04cc /* TX Buffer Descriptor control register */ 169 #define GEM_RXBDCTRL 0x04d0 /* RX Buffer Descriptor control register */ 170 171 /* Screener Type 2 match registers */ 172 #define GEM_SCRT2 0x540 173 174 /* EtherType registers */ 175 #define GEM_ETHT 0x06E0 176 177 /* Type 2 compare registers */ 178 #define GEM_T2CMPW0 0x0700 179 #define GEM_T2CMPW1 0x0704 180 #define T2CMP_OFST(t2idx) (t2idx * 2) 181 182 /* type 2 compare registers 183 * each location requires 3 compare regs 184 */ 185 #define GEM_IP4SRC_CMP(idx) (idx * 3) 186 #define GEM_IP4DST_CMP(idx) (idx * 3 + 1) 187 #define GEM_PORT_CMP(idx) (idx * 3 + 2) 188 189 /* Which screening type 2 EtherType register will be used (0 - 7) */ 190 #define SCRT2_ETHT 0 191 192 #define GEM_ISR(hw_q) (0x0400 + ((hw_q) << 2)) 193 #define GEM_TBQP(hw_q) (0x0440 + ((hw_q) << 2)) 194 #define GEM_TBQPH(hw_q) (0x04C8) 195 #define GEM_RBQP(hw_q) (0x0480 + ((hw_q) << 2)) 196 #define GEM_RBQS(hw_q) (0x04A0 + ((hw_q) << 2)) 197 #define GEM_RBQPH(hw_q) (0x04D4) 198 #define GEM_IER(hw_q) (0x0600 + ((hw_q) << 2)) 199 #define GEM_IDR(hw_q) (0x0620 + ((hw_q) << 2)) 200 #define GEM_IMR(hw_q) (0x0640 + ((hw_q) << 2)) 201 202 /* Bitfields in NCR */ 203 #define MACB_LB_OFFSET 0 /* reserved */ 204 #define MACB_LB_SIZE 1 205 #define MACB_LLB_OFFSET 1 /* Loop back local */ 206 #define MACB_LLB_SIZE 1 207 #define MACB_RE_OFFSET 2 /* Receive enable */ 208 #define MACB_RE_SIZE 1 209 #define MACB_TE_OFFSET 3 /* Transmit enable */ 210 #define MACB_TE_SIZE 1 211 #define MACB_MPE_OFFSET 4 /* Management port enable */ 212 #define MACB_MPE_SIZE 1 213 #define MACB_CLRSTAT_OFFSET 5 /* Clear stats regs */ 214 #define MACB_CLRSTAT_SIZE 1 215 #define MACB_INCSTAT_OFFSET 6 /* Incremental stats regs */ 216 #define MACB_INCSTAT_SIZE 1 217 #define MACB_WESTAT_OFFSET 7 /* Write enable stats regs */ 218 #define MACB_WESTAT_SIZE 1 219 #define MACB_BP_OFFSET 8 /* Back pressure */ 220 #define MACB_BP_SIZE 1 221 #define MACB_TSTART_OFFSET 9 /* Start transmission */ 222 #define MACB_TSTART_SIZE 1 223 #define MACB_THALT_OFFSET 10 /* Transmit halt */ 224 #define MACB_THALT_SIZE 1 225 #define MACB_NCR_TPF_OFFSET 11 /* Transmit pause frame */ 226 #define MACB_NCR_TPF_SIZE 1 227 #define MACB_TZQ_OFFSET 12 /* Transmit zero quantum pause frame */ 228 #define MACB_TZQ_SIZE 1 229 #define MACB_SRTSM_OFFSET 15 230 #define MACB_OSSMODE_OFFSET 24 /* Enable One Step Synchro Mode */ 231 #define MACB_OSSMODE_SIZE 1 232 233 /* Bitfields in NCFGR */ 234 #define MACB_SPD_OFFSET 0 /* Speed */ 235 #define MACB_SPD_SIZE 1 236 #define MACB_FD_OFFSET 1 /* Full duplex */ 237 #define MACB_FD_SIZE 1 238 #define MACB_BIT_RATE_OFFSET 2 /* Discard non-VLAN frames */ 239 #define MACB_BIT_RATE_SIZE 1 240 #define MACB_JFRAME_OFFSET 3 /* reserved */ 241 #define MACB_JFRAME_SIZE 1 242 #define MACB_CAF_OFFSET 4 /* Copy all frames */ 243 #define MACB_CAF_SIZE 1 244 #define MACB_NBC_OFFSET 5 /* No broadcast */ 245 #define MACB_NBC_SIZE 1 246 #define MACB_NCFGR_MTI_OFFSET 6 /* Multicast hash enable */ 247 #define MACB_NCFGR_MTI_SIZE 1 248 #define MACB_UNI_OFFSET 7 /* Unicast hash enable */ 249 #define MACB_UNI_SIZE 1 250 #define MACB_BIG_OFFSET 8 /* Receive 1536 byte frames */ 251 #define MACB_BIG_SIZE 1 252 #define MACB_EAE_OFFSET 9 /* External address match enable */ 253 #define MACB_EAE_SIZE 1 254 #define MACB_CLK_OFFSET 10 255 #define MACB_CLK_SIZE 2 256 #define MACB_RTY_OFFSET 12 /* Retry test */ 257 #define MACB_RTY_SIZE 1 258 #define MACB_PAE_OFFSET 13 /* Pause enable */ 259 #define MACB_PAE_SIZE 1 260 #define MACB_RM9200_RMII_OFFSET 13 /* AT91RM9200 only */ 261 #define MACB_RM9200_RMII_SIZE 1 /* AT91RM9200 only */ 262 #define MACB_RBOF_OFFSET 14 /* Receive buffer offset */ 263 #define MACB_RBOF_SIZE 2 264 #define MACB_RLCE_OFFSET 16 /* Length field error frame discard */ 265 #define MACB_RLCE_SIZE 1 266 #define MACB_DRFCS_OFFSET 17 /* FCS remove */ 267 #define MACB_DRFCS_SIZE 1 268 #define MACB_EFRHD_OFFSET 18 269 #define MACB_EFRHD_SIZE 1 270 #define MACB_IRXFCS_OFFSET 19 271 #define MACB_IRXFCS_SIZE 1 272 273 /* GEM specific NCFGR bitfields. */ 274 #define GEM_GBE_OFFSET 10 /* Gigabit mode enable */ 275 #define GEM_GBE_SIZE 1 276 #define GEM_PCSSEL_OFFSET 11 277 #define GEM_PCSSEL_SIZE 1 278 #define GEM_CLK_OFFSET 18 /* MDC clock division */ 279 #define GEM_CLK_SIZE 3 280 #define GEM_DBW_OFFSET 21 /* Data bus width */ 281 #define GEM_DBW_SIZE 2 282 #define GEM_RXCOEN_OFFSET 24 283 #define GEM_RXCOEN_SIZE 1 284 #define GEM_SGMIIEN_OFFSET 27 285 #define GEM_SGMIIEN_SIZE 1 286 287 288 /* Constants for data bus width. */ 289 #define GEM_DBW32 0 /* 32 bit AMBA AHB data bus width */ 290 #define GEM_DBW64 1 /* 64 bit AMBA AHB data bus width */ 291 #define GEM_DBW128 2 /* 128 bit AMBA AHB data bus width */ 292 293 /* Bitfields in DMACFG. */ 294 #define GEM_FBLDO_OFFSET 0 /* fixed burst length for DMA */ 295 #define GEM_FBLDO_SIZE 5 296 #define GEM_ENDIA_DESC_OFFSET 6 /* endian swap mode for management descriptor access */ 297 #define GEM_ENDIA_DESC_SIZE 1 298 #define GEM_ENDIA_PKT_OFFSET 7 /* endian swap mode for packet data access */ 299 #define GEM_ENDIA_PKT_SIZE 1 300 #define GEM_RXBMS_OFFSET 8 /* RX packet buffer memory size select */ 301 #define GEM_RXBMS_SIZE 2 302 #define GEM_TXPBMS_OFFSET 10 /* TX packet buffer memory size select */ 303 #define GEM_TXPBMS_SIZE 1 304 #define GEM_TXCOEN_OFFSET 11 /* TX IP/TCP/UDP checksum gen offload */ 305 #define GEM_TXCOEN_SIZE 1 306 #define GEM_RXBS_OFFSET 16 /* DMA receive buffer size */ 307 #define GEM_RXBS_SIZE 8 308 #define GEM_DDRP_OFFSET 24 /* disc_when_no_ahb */ 309 #define GEM_DDRP_SIZE 1 310 #define GEM_RXEXT_OFFSET 28 /* RX extended Buffer Descriptor mode */ 311 #define GEM_RXEXT_SIZE 1 312 #define GEM_TXEXT_OFFSET 29 /* TX extended Buffer Descriptor mode */ 313 #define GEM_TXEXT_SIZE 1 314 #define GEM_ADDR64_OFFSET 30 /* Address bus width - 64b or 32b */ 315 #define GEM_ADDR64_SIZE 1 316 317 318 /* Bitfields in NSR */ 319 #define MACB_NSR_LINK_OFFSET 0 /* pcs_link_state */ 320 #define MACB_NSR_LINK_SIZE 1 321 #define MACB_MDIO_OFFSET 1 /* status of the mdio_in pin */ 322 #define MACB_MDIO_SIZE 1 323 #define MACB_IDLE_OFFSET 2 /* The PHY management logic is idle */ 324 #define MACB_IDLE_SIZE 1 325 326 /* Bitfields in TSR */ 327 #define MACB_UBR_OFFSET 0 /* Used bit read */ 328 #define MACB_UBR_SIZE 1 329 #define MACB_COL_OFFSET 1 /* Collision occurred */ 330 #define MACB_COL_SIZE 1 331 #define MACB_TSR_RLE_OFFSET 2 /* Retry limit exceeded */ 332 #define MACB_TSR_RLE_SIZE 1 333 #define MACB_TGO_OFFSET 3 /* Transmit go */ 334 #define MACB_TGO_SIZE 1 335 #define MACB_BEX_OFFSET 4 /* TX frame corruption due to AHB error */ 336 #define MACB_BEX_SIZE 1 337 #define MACB_RM9200_BNQ_OFFSET 4 /* AT91RM9200 only */ 338 #define MACB_RM9200_BNQ_SIZE 1 /* AT91RM9200 only */ 339 #define MACB_COMP_OFFSET 5 /* Trnasmit complete */ 340 #define MACB_COMP_SIZE 1 341 #define MACB_UND_OFFSET 6 /* Trnasmit under run */ 342 #define MACB_UND_SIZE 1 343 344 /* Bitfields in RSR */ 345 #define MACB_BNA_OFFSET 0 /* Buffer not available */ 346 #define MACB_BNA_SIZE 1 347 #define MACB_REC_OFFSET 1 /* Frame received */ 348 #define MACB_REC_SIZE 1 349 #define MACB_OVR_OFFSET 2 /* Receive overrun */ 350 #define MACB_OVR_SIZE 1 351 352 /* Bitfields in ISR/IER/IDR/IMR */ 353 #define MACB_MFD_OFFSET 0 /* Management frame sent */ 354 #define MACB_MFD_SIZE 1 355 #define MACB_RCOMP_OFFSET 1 /* Receive complete */ 356 #define MACB_RCOMP_SIZE 1 357 #define MACB_RXUBR_OFFSET 2 /* RX used bit read */ 358 #define MACB_RXUBR_SIZE 1 359 #define MACB_TXUBR_OFFSET 3 /* TX used bit read */ 360 #define MACB_TXUBR_SIZE 1 361 #define MACB_ISR_TUND_OFFSET 4 /* Enable TX buffer under run interrupt */ 362 #define MACB_ISR_TUND_SIZE 1 363 #define MACB_ISR_RLE_OFFSET 5 /* EN retry exceeded/late coll interrupt */ 364 #define MACB_ISR_RLE_SIZE 1 365 #define MACB_TXERR_OFFSET 6 /* EN TX frame corrupt from error interrupt */ 366 #define MACB_TXERR_SIZE 1 367 #define MACB_TCOMP_OFFSET 7 /* Enable transmit complete interrupt */ 368 #define MACB_TCOMP_SIZE 1 369 #define MACB_ISR_LINK_OFFSET 9 /* Enable link change interrupt */ 370 #define MACB_ISR_LINK_SIZE 1 371 #define MACB_ISR_ROVR_OFFSET 10 /* Enable receive overrun interrupt */ 372 #define MACB_ISR_ROVR_SIZE 1 373 #define MACB_HRESP_OFFSET 11 /* Enable hrsep not OK interrupt */ 374 #define MACB_HRESP_SIZE 1 375 #define MACB_PFR_OFFSET 12 /* Enable pause frame w/ quantum interrupt */ 376 #define MACB_PFR_SIZE 1 377 #define MACB_PTZ_OFFSET 13 /* Enable pause time zero interrupt */ 378 #define MACB_PTZ_SIZE 1 379 #define MACB_WOL_OFFSET 14 /* Enable wake-on-lan interrupt */ 380 #define MACB_WOL_SIZE 1 381 #define MACB_DRQFR_OFFSET 18 /* PTP Delay Request Frame Received */ 382 #define MACB_DRQFR_SIZE 1 383 #define MACB_SFR_OFFSET 19 /* PTP Sync Frame Received */ 384 #define MACB_SFR_SIZE 1 385 #define MACB_DRQFT_OFFSET 20 /* PTP Delay Request Frame Transmitted */ 386 #define MACB_DRQFT_SIZE 1 387 #define MACB_SFT_OFFSET 21 /* PTP Sync Frame Transmitted */ 388 #define MACB_SFT_SIZE 1 389 #define MACB_PDRQFR_OFFSET 22 /* PDelay Request Frame Received */ 390 #define MACB_PDRQFR_SIZE 1 391 #define MACB_PDRSFR_OFFSET 23 /* PDelay Response Frame Received */ 392 #define MACB_PDRSFR_SIZE 1 393 #define MACB_PDRQFT_OFFSET 24 /* PDelay Request Frame Transmitted */ 394 #define MACB_PDRQFT_SIZE 1 395 #define MACB_PDRSFT_OFFSET 25 /* PDelay Response Frame Transmitted */ 396 #define MACB_PDRSFT_SIZE 1 397 #define MACB_SRI_OFFSET 26 /* TSU Seconds Register Increment */ 398 #define MACB_SRI_SIZE 1 399 400 /* Timer increment fields */ 401 #define MACB_TI_CNS_OFFSET 0 402 #define MACB_TI_CNS_SIZE 8 403 #define MACB_TI_ACNS_OFFSET 8 404 #define MACB_TI_ACNS_SIZE 8 405 #define MACB_TI_NIT_OFFSET 16 406 #define MACB_TI_NIT_SIZE 8 407 408 /* Bitfields in MAN */ 409 #define MACB_DATA_OFFSET 0 /* data */ 410 #define MACB_DATA_SIZE 16 411 #define MACB_CODE_OFFSET 16 /* Must be written to 10 */ 412 #define MACB_CODE_SIZE 2 413 #define MACB_REGA_OFFSET 18 /* Register address */ 414 #define MACB_REGA_SIZE 5 415 #define MACB_PHYA_OFFSET 23 /* PHY address */ 416 #define MACB_PHYA_SIZE 5 417 #define MACB_RW_OFFSET 28 /* Operation. 10 is read. 01 is write. */ 418 #define MACB_RW_SIZE 2 419 #define MACB_SOF_OFFSET 30 /* Must be written to 1 for Clause 22 */ 420 #define MACB_SOF_SIZE 2 421 422 /* Bitfields in USRIO (AVR32) */ 423 #define MACB_MII_OFFSET 0 424 #define MACB_MII_SIZE 1 425 #define MACB_EAM_OFFSET 1 426 #define MACB_EAM_SIZE 1 427 #define MACB_TX_PAUSE_OFFSET 2 428 #define MACB_TX_PAUSE_SIZE 1 429 #define MACB_TX_PAUSE_ZERO_OFFSET 3 430 #define MACB_TX_PAUSE_ZERO_SIZE 1 431 432 /* Bitfields in USRIO (AT91) */ 433 #define MACB_RMII_OFFSET 0 434 #define MACB_RMII_SIZE 1 435 #define GEM_RGMII_OFFSET 0 /* GEM gigabit mode */ 436 #define GEM_RGMII_SIZE 1 437 #define MACB_CLKEN_OFFSET 1 438 #define MACB_CLKEN_SIZE 1 439 440 /* Bitfields in WOL */ 441 #define MACB_IP_OFFSET 0 442 #define MACB_IP_SIZE 16 443 #define MACB_MAG_OFFSET 16 444 #define MACB_MAG_SIZE 1 445 #define MACB_ARP_OFFSET 17 446 #define MACB_ARP_SIZE 1 447 #define MACB_SA1_OFFSET 18 448 #define MACB_SA1_SIZE 1 449 #define MACB_WOL_MTI_OFFSET 19 450 #define MACB_WOL_MTI_SIZE 1 451 452 /* Bitfields in MID */ 453 #define MACB_IDNUM_OFFSET 16 454 #define MACB_IDNUM_SIZE 12 455 #define MACB_REV_OFFSET 0 456 #define MACB_REV_SIZE 16 457 458 /* Bitfields in DCFG1. */ 459 #define GEM_IRQCOR_OFFSET 23 460 #define GEM_IRQCOR_SIZE 1 461 #define GEM_DBWDEF_OFFSET 25 462 #define GEM_DBWDEF_SIZE 3 463 464 /* Bitfields in DCFG2. */ 465 #define GEM_RX_PKT_BUFF_OFFSET 20 466 #define GEM_RX_PKT_BUFF_SIZE 1 467 #define GEM_TX_PKT_BUFF_OFFSET 21 468 #define GEM_TX_PKT_BUFF_SIZE 1 469 470 471 /* Bitfields in DCFG5. */ 472 #define GEM_TSU_OFFSET 8 473 #define GEM_TSU_SIZE 1 474 475 /* Bitfields in DCFG6. */ 476 #define GEM_PBUF_LSO_OFFSET 27 477 #define GEM_PBUF_LSO_SIZE 1 478 #define GEM_DAW64_OFFSET 23 479 #define GEM_DAW64_SIZE 1 480 481 /* Bitfields in DCFG8. */ 482 #define GEM_T1SCR_OFFSET 24 483 #define GEM_T1SCR_SIZE 8 484 #define GEM_T2SCR_OFFSET 16 485 #define GEM_T2SCR_SIZE 8 486 #define GEM_SCR2ETH_OFFSET 8 487 #define GEM_SCR2ETH_SIZE 8 488 #define GEM_SCR2CMP_OFFSET 0 489 #define GEM_SCR2CMP_SIZE 8 490 491 /* Bitfields in DCFG10 */ 492 #define GEM_TXBD_RDBUFF_OFFSET 12 493 #define GEM_TXBD_RDBUFF_SIZE 4 494 #define GEM_RXBD_RDBUFF_OFFSET 8 495 #define GEM_RXBD_RDBUFF_SIZE 4 496 497 /* Bitfields in TISUBN */ 498 #define GEM_SUBNSINCR_OFFSET 0 499 #define GEM_SUBNSINCRL_OFFSET 24 500 #define GEM_SUBNSINCRL_SIZE 8 501 #define GEM_SUBNSINCRH_OFFSET 0 502 #define GEM_SUBNSINCRH_SIZE 16 503 #define GEM_SUBNSINCR_SIZE 24 504 505 /* Bitfields in TI */ 506 #define GEM_NSINCR_OFFSET 0 507 #define GEM_NSINCR_SIZE 8 508 509 /* Bitfields in TSH */ 510 #define GEM_TSH_OFFSET 0 /* TSU timer value (s). MSB [47:32] of seconds timer count */ 511 #define GEM_TSH_SIZE 16 512 513 /* Bitfields in TSL */ 514 #define GEM_TSL_OFFSET 0 /* TSU timer value (s). LSB [31:0] of seconds timer count */ 515 #define GEM_TSL_SIZE 32 516 517 /* Bitfields in TN */ 518 #define GEM_TN_OFFSET 0 /* TSU timer value (ns) */ 519 #define GEM_TN_SIZE 30 520 521 /* Bitfields in TXBDCTRL */ 522 #define GEM_TXTSMODE_OFFSET 4 /* TX Descriptor Timestamp Insertion mode */ 523 #define GEM_TXTSMODE_SIZE 2 524 525 /* Bitfields in RXBDCTRL */ 526 #define GEM_RXTSMODE_OFFSET 4 /* RX Descriptor Timestamp Insertion mode */ 527 #define GEM_RXTSMODE_SIZE 2 528 529 /* Bitfields in SCRT2 */ 530 #define GEM_QUEUE_OFFSET 0 /* Queue Number */ 531 #define GEM_QUEUE_SIZE 4 532 #define GEM_VLANPR_OFFSET 4 /* VLAN Priority */ 533 #define GEM_VLANPR_SIZE 3 534 #define GEM_VLANEN_OFFSET 8 /* VLAN Enable */ 535 #define GEM_VLANEN_SIZE 1 536 #define GEM_ETHT2IDX_OFFSET 9 /* Index to screener type 2 EtherType register */ 537 #define GEM_ETHT2IDX_SIZE 3 538 #define GEM_ETHTEN_OFFSET 12 /* EtherType Enable */ 539 #define GEM_ETHTEN_SIZE 1 540 #define GEM_CMPA_OFFSET 13 /* Compare A - Index to screener type 2 Compare register */ 541 #define GEM_CMPA_SIZE 5 542 #define GEM_CMPAEN_OFFSET 18 /* Compare A Enable */ 543 #define GEM_CMPAEN_SIZE 1 544 #define GEM_CMPB_OFFSET 19 /* Compare B - Index to screener type 2 Compare register */ 545 #define GEM_CMPB_SIZE 5 546 #define GEM_CMPBEN_OFFSET 24 /* Compare B Enable */ 547 #define GEM_CMPBEN_SIZE 1 548 #define GEM_CMPC_OFFSET 25 /* Compare C - Index to screener type 2 Compare register */ 549 #define GEM_CMPC_SIZE 5 550 #define GEM_CMPCEN_OFFSET 30 /* Compare C Enable */ 551 #define GEM_CMPCEN_SIZE 1 552 553 /* Bitfields in ETHT */ 554 #define GEM_ETHTCMP_OFFSET 0 /* EtherType compare value */ 555 #define GEM_ETHTCMP_SIZE 16 556 557 /* Bitfields in T2CMPW0 */ 558 #define GEM_T2CMP_OFFSET 16 /* 0xFFFF0000 compare value */ 559 #define GEM_T2CMP_SIZE 16 560 #define GEM_T2MASK_OFFSET 0 /* 0x0000FFFF compare value or mask */ 561 #define GEM_T2MASK_SIZE 16 562 563 /* Bitfields in T2CMPW1 */ 564 #define GEM_T2DISMSK_OFFSET 9 /* disable mask */ 565 #define GEM_T2DISMSK_SIZE 1 566 #define GEM_T2CMPOFST_OFFSET 7 /* compare offset */ 567 #define GEM_T2CMPOFST_SIZE 2 568 #define GEM_T2OFST_OFFSET 0 /* offset value */ 569 #define GEM_T2OFST_SIZE 7 570 571 /* Offset for screener type 2 compare values (T2CMPOFST). 572 * Note the offset is applied after the specified point, 573 * e.g. GEM_T2COMPOFST_ETYPE denotes the EtherType field, so an offset 574 * of 12 bytes from this would be the source IP address in an IP header 575 */ 576 #define GEM_T2COMPOFST_SOF 0 577 #define GEM_T2COMPOFST_ETYPE 1 578 #define GEM_T2COMPOFST_IPHDR 2 579 #define GEM_T2COMPOFST_TCPUDP 3 580 581 /* offset from EtherType to IP address */ 582 #define ETYPE_SRCIP_OFFSET 12 583 #define ETYPE_DSTIP_OFFSET 16 584 585 /* offset from IP header to port */ 586 #define IPHDR_SRCPORT_OFFSET 0 587 #define IPHDR_DSTPORT_OFFSET 2 588 589 /* Transmit DMA buffer descriptor Word 1 */ 590 #define GEM_DMA_TXVALID_OFFSET 23 /* timestamp has been captured in the Buffer Descriptor */ 591 #define GEM_DMA_TXVALID_SIZE 1 592 593 /* Receive DMA buffer descriptor Word 0 */ 594 #define GEM_DMA_RXVALID_OFFSET 2 /* indicates a valid timestamp in the Buffer Descriptor */ 595 #define GEM_DMA_RXVALID_SIZE 1 596 597 /* DMA buffer descriptor Word 2 (32 bit addressing) or Word 4 (64 bit addressing) */ 598 #define GEM_DMA_SECL_OFFSET 30 /* Timestamp seconds[1:0] */ 599 #define GEM_DMA_SECL_SIZE 2 600 #define GEM_DMA_NSEC_OFFSET 0 /* Timestamp nanosecs [29:0] */ 601 #define GEM_DMA_NSEC_SIZE 30 602 603 /* DMA buffer descriptor Word 3 (32 bit addressing) or Word 5 (64 bit addressing) */ 604 605 /* New hardware supports 12 bit precision of timestamp in DMA buffer descriptor. 606 * Old hardware supports only 6 bit precision but it is enough for PTP. 607 * Less accuracy is used always instead of checking hardware version. 608 */ 609 #define GEM_DMA_SECH_OFFSET 0 /* Timestamp seconds[5:2] */ 610 #define GEM_DMA_SECH_SIZE 4 611 #define GEM_DMA_SEC_WIDTH (GEM_DMA_SECH_SIZE + GEM_DMA_SECL_SIZE) 612 #define GEM_DMA_SEC_TOP (1 << GEM_DMA_SEC_WIDTH) 613 #define GEM_DMA_SEC_MASK (GEM_DMA_SEC_TOP - 1) 614 615 /* Bitfields in ADJ */ 616 #define GEM_ADDSUB_OFFSET 31 617 #define GEM_ADDSUB_SIZE 1 618 /* Constants for CLK */ 619 #define MACB_CLK_DIV8 0 620 #define MACB_CLK_DIV16 1 621 #define MACB_CLK_DIV32 2 622 #define MACB_CLK_DIV64 3 623 624 /* GEM specific constants for CLK. */ 625 #define GEM_CLK_DIV8 0 626 #define GEM_CLK_DIV16 1 627 #define GEM_CLK_DIV32 2 628 #define GEM_CLK_DIV48 3 629 #define GEM_CLK_DIV64 4 630 #define GEM_CLK_DIV96 5 631 632 /* Constants for MAN register */ 633 #define MACB_MAN_C22_SOF 1 634 #define MACB_MAN_C22_WRITE 1 635 #define MACB_MAN_C22_READ 2 636 #define MACB_MAN_C22_CODE 2 637 638 #define MACB_MAN_C45_SOF 0 639 #define MACB_MAN_C45_ADDR 0 640 #define MACB_MAN_C45_WRITE 1 641 #define MACB_MAN_C45_POST_READ_INCR 2 642 #define MACB_MAN_C45_READ 3 643 #define MACB_MAN_C45_CODE 2 644 645 /* Capability mask bits */ 646 #define MACB_CAPS_ISR_CLEAR_ON_WRITE 0x00000001 647 #define MACB_CAPS_USRIO_HAS_CLKEN 0x00000002 648 #define MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII 0x00000004 649 #define MACB_CAPS_NO_GIGABIT_HALF 0x00000008 650 #define MACB_CAPS_USRIO_DISABLED 0x00000010 651 #define MACB_CAPS_JUMBO 0x00000020 652 #define MACB_CAPS_GEM_HAS_PTP 0x00000040 653 #define MACB_CAPS_BD_RD_PREFETCH 0x00000080 654 #define MACB_CAPS_NEEDS_RSTONUBR 0x00000100 655 #define MACB_CAPS_MACB_IS_EMAC 0x08000000 656 #define MACB_CAPS_FIFO_MODE 0x10000000 657 #define MACB_CAPS_GIGABIT_MODE_AVAILABLE 0x20000000 658 #define MACB_CAPS_SG_DISABLED 0x40000000 659 #define MACB_CAPS_MACB_IS_GEM 0x80000000 660 661 /* LSO settings */ 662 #define MACB_LSO_UFO_ENABLE 0x01 663 #define MACB_LSO_TSO_ENABLE 0x02 664 665 /* Bit manipulation macros */ 666 #define MACB_BIT(name) \ 667 (1 << MACB_##name##_OFFSET) 668 #define MACB_BF(name,value) \ 669 (((value) & ((1 << MACB_##name##_SIZE) - 1)) \ 670 << MACB_##name##_OFFSET) 671 #define MACB_BFEXT(name,value)\ 672 (((value) >> MACB_##name##_OFFSET) \ 673 & ((1 << MACB_##name##_SIZE) - 1)) 674 #define MACB_BFINS(name,value,old) \ 675 (((old) & ~(((1 << MACB_##name##_SIZE) - 1) \ 676 << MACB_##name##_OFFSET)) \ 677 | MACB_BF(name,value)) 678 679 #define GEM_BIT(name) \ 680 (1 << GEM_##name##_OFFSET) 681 #define GEM_BF(name, value) \ 682 (((value) & ((1 << GEM_##name##_SIZE) - 1)) \ 683 << GEM_##name##_OFFSET) 684 #define GEM_BFEXT(name, value)\ 685 (((value) >> GEM_##name##_OFFSET) \ 686 & ((1 << GEM_##name##_SIZE) - 1)) 687 #define GEM_BFINS(name, value, old) \ 688 (((old) & ~(((1 << GEM_##name##_SIZE) - 1) \ 689 << GEM_##name##_OFFSET)) \ 690 | GEM_BF(name, value)) 691 692 /* Register access macros */ 693 #define macb_readl(port, reg) (port)->macb_reg_readl((port), MACB_##reg) 694 #define macb_writel(port, reg, value) (port)->macb_reg_writel((port), MACB_##reg, (value)) 695 #define gem_readl(port, reg) (port)->macb_reg_readl((port), GEM_##reg) 696 #define gem_writel(port, reg, value) (port)->macb_reg_writel((port), GEM_##reg, (value)) 697 #define queue_readl(queue, reg) (queue)->bp->macb_reg_readl((queue)->bp, (queue)->reg) 698 #define queue_writel(queue, reg, value) (queue)->bp->macb_reg_writel((queue)->bp, (queue)->reg, (value)) 699 #define gem_readl_n(port, reg, idx) (port)->macb_reg_readl((port), GEM_##reg + idx * 4) 700 #define gem_writel_n(port, reg, idx, value) (port)->macb_reg_writel((port), GEM_##reg + idx * 4, (value)) 701 702 #define PTP_TS_BUFFER_SIZE 128 /* must be power of 2 */ 703 704 /* Conditional GEM/MACB macros. These perform the operation to the correct 705 * register dependent on whether the device is a GEM or a MACB. For registers 706 * and bitfields that are common across both devices, use macb_{read,write}l 707 * to avoid the cost of the conditional. 708 */ 709 #define macb_or_gem_writel(__bp, __reg, __value) \ 710 ({ \ 711 if (macb_is_gem((__bp))) \ 712 gem_writel((__bp), __reg, __value); \ 713 else \ 714 macb_writel((__bp), __reg, __value); \ 715 }) 716 717 #define macb_or_gem_readl(__bp, __reg) \ 718 ({ \ 719 u32 __v; \ 720 if (macb_is_gem((__bp))) \ 721 __v = gem_readl((__bp), __reg); \ 722 else \ 723 __v = macb_readl((__bp), __reg); \ 724 __v; \ 725 }) 726 727 #define MACB_READ_NSR(bp) macb_readl(bp, NSR) 728 729 /* struct macb_dma_desc - Hardware DMA descriptor 730 * @addr: DMA address of data buffer 731 * @ctrl: Control and status bits 732 */ 733 struct macb_dma_desc { 734 u32 addr; 735 u32 ctrl; 736 }; 737 738 #ifdef MACB_EXT_DESC 739 #define HW_DMA_CAP_32B 0 740 #define HW_DMA_CAP_64B (1 << 0) 741 #define HW_DMA_CAP_PTP (1 << 1) 742 #define HW_DMA_CAP_64B_PTP (HW_DMA_CAP_64B | HW_DMA_CAP_PTP) 743 744 struct macb_dma_desc_64 { 745 u32 addrh; 746 u32 resvd; 747 }; 748 749 struct macb_dma_desc_ptp { 750 u32 ts_1; 751 u32 ts_2; 752 }; 753 754 struct gem_tx_ts { 755 struct sk_buff *skb; 756 struct macb_dma_desc_ptp desc_ptp; 757 }; 758 #endif 759 760 /* DMA descriptor bitfields */ 761 #define MACB_RX_USED_OFFSET 0 762 #define MACB_RX_USED_SIZE 1 763 #define MACB_RX_WRAP_OFFSET 1 764 #define MACB_RX_WRAP_SIZE 1 765 #define MACB_RX_WADDR_OFFSET 2 766 #define MACB_RX_WADDR_SIZE 30 767 768 #define MACB_RX_FRMLEN_OFFSET 0 769 #define MACB_RX_FRMLEN_SIZE 12 770 #define MACB_RX_OFFSET_OFFSET 12 771 #define MACB_RX_OFFSET_SIZE 2 772 #define MACB_RX_SOF_OFFSET 14 773 #define MACB_RX_SOF_SIZE 1 774 #define MACB_RX_EOF_OFFSET 15 775 #define MACB_RX_EOF_SIZE 1 776 #define MACB_RX_CFI_OFFSET 16 777 #define MACB_RX_CFI_SIZE 1 778 #define MACB_RX_VLAN_PRI_OFFSET 17 779 #define MACB_RX_VLAN_PRI_SIZE 3 780 #define MACB_RX_PRI_TAG_OFFSET 20 781 #define MACB_RX_PRI_TAG_SIZE 1 782 #define MACB_RX_VLAN_TAG_OFFSET 21 783 #define MACB_RX_VLAN_TAG_SIZE 1 784 #define MACB_RX_TYPEID_MATCH_OFFSET 22 785 #define MACB_RX_TYPEID_MATCH_SIZE 1 786 #define MACB_RX_SA4_MATCH_OFFSET 23 787 #define MACB_RX_SA4_MATCH_SIZE 1 788 #define MACB_RX_SA3_MATCH_OFFSET 24 789 #define MACB_RX_SA3_MATCH_SIZE 1 790 #define MACB_RX_SA2_MATCH_OFFSET 25 791 #define MACB_RX_SA2_MATCH_SIZE 1 792 #define MACB_RX_SA1_MATCH_OFFSET 26 793 #define MACB_RX_SA1_MATCH_SIZE 1 794 #define MACB_RX_EXT_MATCH_OFFSET 28 795 #define MACB_RX_EXT_MATCH_SIZE 1 796 #define MACB_RX_UHASH_MATCH_OFFSET 29 797 #define MACB_RX_UHASH_MATCH_SIZE 1 798 #define MACB_RX_MHASH_MATCH_OFFSET 30 799 #define MACB_RX_MHASH_MATCH_SIZE 1 800 #define MACB_RX_BROADCAST_OFFSET 31 801 #define MACB_RX_BROADCAST_SIZE 1 802 803 #define MACB_RX_FRMLEN_MASK 0xFFF 804 #define MACB_RX_JFRMLEN_MASK 0x3FFF 805 806 /* RX checksum offload disabled: bit 24 clear in NCFGR */ 807 #define GEM_RX_TYPEID_MATCH_OFFSET 22 808 #define GEM_RX_TYPEID_MATCH_SIZE 2 809 810 /* RX checksum offload enabled: bit 24 set in NCFGR */ 811 #define GEM_RX_CSUM_OFFSET 22 812 #define GEM_RX_CSUM_SIZE 2 813 814 #define MACB_TX_FRMLEN_OFFSET 0 815 #define MACB_TX_FRMLEN_SIZE 11 816 #define MACB_TX_LAST_OFFSET 15 817 #define MACB_TX_LAST_SIZE 1 818 #define MACB_TX_NOCRC_OFFSET 16 819 #define MACB_TX_NOCRC_SIZE 1 820 #define MACB_MSS_MFS_OFFSET 16 821 #define MACB_MSS_MFS_SIZE 14 822 #define MACB_TX_LSO_OFFSET 17 823 #define MACB_TX_LSO_SIZE 2 824 #define MACB_TX_TCP_SEQ_SRC_OFFSET 19 825 #define MACB_TX_TCP_SEQ_SRC_SIZE 1 826 #define MACB_TX_BUF_EXHAUSTED_OFFSET 27 827 #define MACB_TX_BUF_EXHAUSTED_SIZE 1 828 #define MACB_TX_UNDERRUN_OFFSET 28 829 #define MACB_TX_UNDERRUN_SIZE 1 830 #define MACB_TX_ERROR_OFFSET 29 831 #define MACB_TX_ERROR_SIZE 1 832 #define MACB_TX_WRAP_OFFSET 30 833 #define MACB_TX_WRAP_SIZE 1 834 #define MACB_TX_USED_OFFSET 31 835 #define MACB_TX_USED_SIZE 1 836 837 #define GEM_TX_FRMLEN_OFFSET 0 838 #define GEM_TX_FRMLEN_SIZE 14 839 840 /* Buffer descriptor constants */ 841 #define GEM_RX_CSUM_NONE 0 842 #define GEM_RX_CSUM_IP_ONLY 1 843 #define GEM_RX_CSUM_IP_TCP 2 844 #define GEM_RX_CSUM_IP_UDP 3 845 846 /* limit RX checksum offload to TCP and UDP packets */ 847 #define GEM_RX_CSUM_CHECKED_MASK 2 848 849 /* Scaled PPM fraction */ 850 #define PPM_FRACTION 16 851 852 /* struct macb_tx_skb - data about an skb which is being transmitted 853 * @skb: skb currently being transmitted, only set for the last buffer 854 * of the frame 855 * @mapping: DMA address of the skb's fragment buffer 856 * @size: size of the DMA mapped buffer 857 * @mapped_as_page: true when buffer was mapped with skb_frag_dma_map(), 858 * false when buffer was mapped with dma_map_single() 859 */ 860 struct macb_tx_skb { 861 struct sk_buff *skb; 862 dma_addr_t mapping; 863 size_t size; 864 bool mapped_as_page; 865 }; 866 867 /* Hardware-collected statistics. Used when updating the network 868 * device stats by a periodic timer. 869 */ 870 struct macb_stats { 871 u32 rx_pause_frames; 872 u32 tx_ok; 873 u32 tx_single_cols; 874 u32 tx_multiple_cols; 875 u32 rx_ok; 876 u32 rx_fcs_errors; 877 u32 rx_align_errors; 878 u32 tx_deferred; 879 u32 tx_late_cols; 880 u32 tx_excessive_cols; 881 u32 tx_underruns; 882 u32 tx_carrier_errors; 883 u32 rx_resource_errors; 884 u32 rx_overruns; 885 u32 rx_symbol_errors; 886 u32 rx_oversize_pkts; 887 u32 rx_jabbers; 888 u32 rx_undersize_pkts; 889 u32 sqe_test_errors; 890 u32 rx_length_mismatch; 891 u32 tx_pause_frames; 892 }; 893 894 struct gem_stats { 895 u32 tx_octets_31_0; 896 u32 tx_octets_47_32; 897 u32 tx_frames; 898 u32 tx_broadcast_frames; 899 u32 tx_multicast_frames; 900 u32 tx_pause_frames; 901 u32 tx_64_byte_frames; 902 u32 tx_65_127_byte_frames; 903 u32 tx_128_255_byte_frames; 904 u32 tx_256_511_byte_frames; 905 u32 tx_512_1023_byte_frames; 906 u32 tx_1024_1518_byte_frames; 907 u32 tx_greater_than_1518_byte_frames; 908 u32 tx_underrun; 909 u32 tx_single_collision_frames; 910 u32 tx_multiple_collision_frames; 911 u32 tx_excessive_collisions; 912 u32 tx_late_collisions; 913 u32 tx_deferred_frames; 914 u32 tx_carrier_sense_errors; 915 u32 rx_octets_31_0; 916 u32 rx_octets_47_32; 917 u32 rx_frames; 918 u32 rx_broadcast_frames; 919 u32 rx_multicast_frames; 920 u32 rx_pause_frames; 921 u32 rx_64_byte_frames; 922 u32 rx_65_127_byte_frames; 923 u32 rx_128_255_byte_frames; 924 u32 rx_256_511_byte_frames; 925 u32 rx_512_1023_byte_frames; 926 u32 rx_1024_1518_byte_frames; 927 u32 rx_greater_than_1518_byte_frames; 928 u32 rx_undersized_frames; 929 u32 rx_oversize_frames; 930 u32 rx_jabbers; 931 u32 rx_frame_check_sequence_errors; 932 u32 rx_length_field_frame_errors; 933 u32 rx_symbol_errors; 934 u32 rx_alignment_errors; 935 u32 rx_resource_errors; 936 u32 rx_overruns; 937 u32 rx_ip_header_checksum_errors; 938 u32 rx_tcp_checksum_errors; 939 u32 rx_udp_checksum_errors; 940 }; 941 942 /* Describes the name and offset of an individual statistic register, as 943 * returned by `ethtool -S`. Also describes which net_device_stats statistics 944 * this register should contribute to. 945 */ 946 struct gem_statistic { 947 char stat_string[ETH_GSTRING_LEN]; 948 int offset; 949 u32 stat_bits; 950 }; 951 952 /* Bitfield defs for net_device_stat statistics */ 953 #define GEM_NDS_RXERR_OFFSET 0 954 #define GEM_NDS_RXLENERR_OFFSET 1 955 #define GEM_NDS_RXOVERERR_OFFSET 2 956 #define GEM_NDS_RXCRCERR_OFFSET 3 957 #define GEM_NDS_RXFRAMEERR_OFFSET 4 958 #define GEM_NDS_RXFIFOERR_OFFSET 5 959 #define GEM_NDS_TXERR_OFFSET 6 960 #define GEM_NDS_TXABORTEDERR_OFFSET 7 961 #define GEM_NDS_TXCARRIERERR_OFFSET 8 962 #define GEM_NDS_TXFIFOERR_OFFSET 9 963 #define GEM_NDS_COLLISIONS_OFFSET 10 964 965 #define GEM_STAT_TITLE(name, title) GEM_STAT_TITLE_BITS(name, title, 0) 966 #define GEM_STAT_TITLE_BITS(name, title, bits) { \ 967 .stat_string = title, \ 968 .offset = GEM_##name, \ 969 .stat_bits = bits \ 970 } 971 972 /* list of gem statistic registers. The names MUST match the 973 * corresponding GEM_* definitions. 974 */ 975 static const struct gem_statistic gem_statistics[] = { 976 GEM_STAT_TITLE(OCTTXL, "tx_octets"), /* OCTTXH combined with OCTTXL */ 977 GEM_STAT_TITLE(TXCNT, "tx_frames"), 978 GEM_STAT_TITLE(TXBCCNT, "tx_broadcast_frames"), 979 GEM_STAT_TITLE(TXMCCNT, "tx_multicast_frames"), 980 GEM_STAT_TITLE(TXPAUSECNT, "tx_pause_frames"), 981 GEM_STAT_TITLE(TX64CNT, "tx_64_byte_frames"), 982 GEM_STAT_TITLE(TX65CNT, "tx_65_127_byte_frames"), 983 GEM_STAT_TITLE(TX128CNT, "tx_128_255_byte_frames"), 984 GEM_STAT_TITLE(TX256CNT, "tx_256_511_byte_frames"), 985 GEM_STAT_TITLE(TX512CNT, "tx_512_1023_byte_frames"), 986 GEM_STAT_TITLE(TX1024CNT, "tx_1024_1518_byte_frames"), 987 GEM_STAT_TITLE(TX1519CNT, "tx_greater_than_1518_byte_frames"), 988 GEM_STAT_TITLE_BITS(TXURUNCNT, "tx_underrun", 989 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_TXFIFOERR)), 990 GEM_STAT_TITLE_BITS(SNGLCOLLCNT, "tx_single_collision_frames", 991 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)), 992 GEM_STAT_TITLE_BITS(MULTICOLLCNT, "tx_multiple_collision_frames", 993 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)), 994 GEM_STAT_TITLE_BITS(EXCESSCOLLCNT, "tx_excessive_collisions", 995 GEM_BIT(NDS_TXERR)| 996 GEM_BIT(NDS_TXABORTEDERR)| 997 GEM_BIT(NDS_COLLISIONS)), 998 GEM_STAT_TITLE_BITS(LATECOLLCNT, "tx_late_collisions", 999 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)), 1000 GEM_STAT_TITLE(TXDEFERCNT, "tx_deferred_frames"), 1001 GEM_STAT_TITLE_BITS(TXCSENSECNT, "tx_carrier_sense_errors", 1002 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)), 1003 GEM_STAT_TITLE(OCTRXL, "rx_octets"), /* OCTRXH combined with OCTRXL */ 1004 GEM_STAT_TITLE(RXCNT, "rx_frames"), 1005 GEM_STAT_TITLE(RXBROADCNT, "rx_broadcast_frames"), 1006 GEM_STAT_TITLE(RXMULTICNT, "rx_multicast_frames"), 1007 GEM_STAT_TITLE(RXPAUSECNT, "rx_pause_frames"), 1008 GEM_STAT_TITLE(RX64CNT, "rx_64_byte_frames"), 1009 GEM_STAT_TITLE(RX65CNT, "rx_65_127_byte_frames"), 1010 GEM_STAT_TITLE(RX128CNT, "rx_128_255_byte_frames"), 1011 GEM_STAT_TITLE(RX256CNT, "rx_256_511_byte_frames"), 1012 GEM_STAT_TITLE(RX512CNT, "rx_512_1023_byte_frames"), 1013 GEM_STAT_TITLE(RX1024CNT, "rx_1024_1518_byte_frames"), 1014 GEM_STAT_TITLE(RX1519CNT, "rx_greater_than_1518_byte_frames"), 1015 GEM_STAT_TITLE_BITS(RXUNDRCNT, "rx_undersized_frames", 1016 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)), 1017 GEM_STAT_TITLE_BITS(RXOVRCNT, "rx_oversize_frames", 1018 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)), 1019 GEM_STAT_TITLE_BITS(RXJABCNT, "rx_jabbers", 1020 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)), 1021 GEM_STAT_TITLE_BITS(RXFCSCNT, "rx_frame_check_sequence_errors", 1022 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXCRCERR)), 1023 GEM_STAT_TITLE_BITS(RXLENGTHCNT, "rx_length_field_frame_errors", 1024 GEM_BIT(NDS_RXERR)), 1025 GEM_STAT_TITLE_BITS(RXSYMBCNT, "rx_symbol_errors", 1026 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXFRAMEERR)), 1027 GEM_STAT_TITLE_BITS(RXALIGNCNT, "rx_alignment_errors", 1028 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXOVERERR)), 1029 GEM_STAT_TITLE_BITS(RXRESERRCNT, "rx_resource_errors", 1030 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXOVERERR)), 1031 GEM_STAT_TITLE_BITS(RXORCNT, "rx_overruns", 1032 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXFIFOERR)), 1033 GEM_STAT_TITLE_BITS(RXIPCCNT, "rx_ip_header_checksum_errors", 1034 GEM_BIT(NDS_RXERR)), 1035 GEM_STAT_TITLE_BITS(RXTCPCCNT, "rx_tcp_checksum_errors", 1036 GEM_BIT(NDS_RXERR)), 1037 GEM_STAT_TITLE_BITS(RXUDPCCNT, "rx_udp_checksum_errors", 1038 GEM_BIT(NDS_RXERR)), 1039 }; 1040 1041 #define GEM_STATS_LEN ARRAY_SIZE(gem_statistics) 1042 1043 #define QUEUE_STAT_TITLE(title) { \ 1044 .stat_string = title, \ 1045 } 1046 1047 /* per queue statistics, each should be unsigned long type */ 1048 struct queue_stats { 1049 union { 1050 unsigned long first; 1051 unsigned long rx_packets; 1052 }; 1053 unsigned long rx_bytes; 1054 unsigned long rx_dropped; 1055 unsigned long tx_packets; 1056 unsigned long tx_bytes; 1057 unsigned long tx_dropped; 1058 }; 1059 1060 static const struct gem_statistic queue_statistics[] = { 1061 QUEUE_STAT_TITLE("rx_packets"), 1062 QUEUE_STAT_TITLE("rx_bytes"), 1063 QUEUE_STAT_TITLE("rx_dropped"), 1064 QUEUE_STAT_TITLE("tx_packets"), 1065 QUEUE_STAT_TITLE("tx_bytes"), 1066 QUEUE_STAT_TITLE("tx_dropped"), 1067 }; 1068 1069 #define QUEUE_STATS_LEN ARRAY_SIZE(queue_statistics) 1070 1071 struct macb; 1072 struct macb_queue; 1073 1074 struct macb_or_gem_ops { 1075 int (*mog_alloc_rx_buffers)(struct macb *bp); 1076 void (*mog_free_rx_buffers)(struct macb *bp); 1077 void (*mog_init_rings)(struct macb *bp); 1078 int (*mog_rx)(struct macb_queue *queue, struct napi_struct *napi, 1079 int budget); 1080 }; 1081 1082 /* MACB-PTP interface: adapt to platform needs. */ 1083 struct macb_ptp_info { 1084 void (*ptp_init)(struct net_device *ndev); 1085 void (*ptp_remove)(struct net_device *ndev); 1086 s32 (*get_ptp_max_adj)(void); 1087 unsigned int (*get_tsu_rate)(struct macb *bp); 1088 int (*get_ts_info)(struct net_device *dev, 1089 struct ethtool_ts_info *info); 1090 int (*get_hwtst)(struct net_device *netdev, 1091 struct ifreq *ifr); 1092 int (*set_hwtst)(struct net_device *netdev, 1093 struct ifreq *ifr, int cmd); 1094 }; 1095 1096 struct macb_pm_data { 1097 u32 scrt2; 1098 u32 usrio; 1099 }; 1100 1101 struct macb_config { 1102 u32 caps; 1103 unsigned int dma_burst_length; 1104 int (*clk_init)(struct platform_device *pdev, struct clk **pclk, 1105 struct clk **hclk, struct clk **tx_clk, 1106 struct clk **rx_clk, struct clk **tsu_clk); 1107 int (*init)(struct platform_device *pdev); 1108 int jumbo_max_len; 1109 }; 1110 1111 struct tsu_incr { 1112 u32 sub_ns; 1113 u32 ns; 1114 }; 1115 1116 struct macb_queue { 1117 struct macb *bp; 1118 int irq; 1119 1120 unsigned int ISR; 1121 unsigned int IER; 1122 unsigned int IDR; 1123 unsigned int IMR; 1124 unsigned int TBQP; 1125 unsigned int TBQPH; 1126 unsigned int RBQS; 1127 unsigned int RBQP; 1128 unsigned int RBQPH; 1129 1130 unsigned int tx_head, tx_tail; 1131 struct macb_dma_desc *tx_ring; 1132 struct macb_tx_skb *tx_skb; 1133 dma_addr_t tx_ring_dma; 1134 struct work_struct tx_error_task; 1135 1136 dma_addr_t rx_ring_dma; 1137 dma_addr_t rx_buffers_dma; 1138 unsigned int rx_tail; 1139 unsigned int rx_prepared_head; 1140 struct macb_dma_desc *rx_ring; 1141 struct sk_buff **rx_skbuff; 1142 void *rx_buffers; 1143 struct napi_struct napi; 1144 struct queue_stats stats; 1145 1146 #ifdef CONFIG_MACB_USE_HWSTAMP 1147 struct work_struct tx_ts_task; 1148 unsigned int tx_ts_head, tx_ts_tail; 1149 struct gem_tx_ts tx_timestamps[PTP_TS_BUFFER_SIZE]; 1150 #endif 1151 }; 1152 1153 struct ethtool_rx_fs_item { 1154 struct ethtool_rx_flow_spec fs; 1155 struct list_head list; 1156 }; 1157 1158 struct ethtool_rx_fs_list { 1159 struct list_head list; 1160 unsigned int count; 1161 }; 1162 1163 struct macb { 1164 void __iomem *regs; 1165 bool native_io; 1166 1167 /* hardware IO accessors */ 1168 u32 (*macb_reg_readl)(struct macb *bp, int offset); 1169 void (*macb_reg_writel)(struct macb *bp, int offset, u32 value); 1170 1171 size_t rx_buffer_size; 1172 1173 unsigned int rx_ring_size; 1174 unsigned int tx_ring_size; 1175 1176 unsigned int num_queues; 1177 unsigned int queue_mask; 1178 struct macb_queue queues[MACB_MAX_QUEUES]; 1179 1180 spinlock_t lock; 1181 struct platform_device *pdev; 1182 struct clk *pclk; 1183 struct clk *hclk; 1184 struct clk *tx_clk; 1185 struct clk *rx_clk; 1186 struct clk *tsu_clk; 1187 struct net_device *dev; 1188 union { 1189 struct macb_stats macb; 1190 struct gem_stats gem; 1191 } hw_stats; 1192 1193 struct macb_or_gem_ops macbgem_ops; 1194 1195 struct mii_bus *mii_bus; 1196 struct phylink *phylink; 1197 struct phylink_config phylink_config; 1198 1199 u32 caps; 1200 unsigned int dma_burst_length; 1201 1202 phy_interface_t phy_interface; 1203 1204 /* AT91RM9200 transmit */ 1205 struct sk_buff *skb; /* holds skb until xmit interrupt completes */ 1206 dma_addr_t skb_physaddr; /* phys addr from pci_map_single */ 1207 int skb_length; /* saved skb length for pci_unmap_single */ 1208 unsigned int max_tx_length; 1209 1210 u64 ethtool_stats[GEM_STATS_LEN + QUEUE_STATS_LEN * MACB_MAX_QUEUES]; 1211 1212 unsigned int rx_frm_len_mask; 1213 unsigned int jumbo_max_len; 1214 1215 u32 wol; 1216 1217 struct macb_ptp_info *ptp_info; /* macb-ptp interface */ 1218 #ifdef MACB_EXT_DESC 1219 uint8_t hw_dma_cap; 1220 #endif 1221 spinlock_t tsu_clk_lock; /* gem tsu clock locking */ 1222 unsigned int tsu_rate; 1223 struct ptp_clock *ptp_clock; 1224 struct ptp_clock_info ptp_clock_info; 1225 struct tsu_incr tsu_incr; 1226 struct hwtstamp_config tstamp_config; 1227 1228 /* RX queue filer rule set*/ 1229 struct ethtool_rx_fs_list rx_fs_list; 1230 spinlock_t rx_fs_lock; 1231 unsigned int max_tuples; 1232 1233 struct tasklet_struct hresp_err_tasklet; 1234 1235 int rx_bd_rd_prefetch; 1236 int tx_bd_rd_prefetch; 1237 1238 u32 rx_intr_mask; 1239 1240 struct macb_pm_data pm_data; 1241 }; 1242 1243 #ifdef CONFIG_MACB_USE_HWSTAMP 1244 #define GEM_TSEC_SIZE (GEM_TSH_SIZE + GEM_TSL_SIZE) 1245 #define TSU_SEC_MAX_VAL (((u64)1 << GEM_TSEC_SIZE) - 1) 1246 #define TSU_NSEC_MAX_VAL ((1 << GEM_TN_SIZE) - 1) 1247 1248 enum macb_bd_control { 1249 TSTAMP_DISABLED, 1250 TSTAMP_FRAME_PTP_EVENT_ONLY, 1251 TSTAMP_ALL_PTP_FRAMES, 1252 TSTAMP_ALL_FRAMES, 1253 }; 1254 1255 void gem_ptp_init(struct net_device *ndev); 1256 void gem_ptp_remove(struct net_device *ndev); 1257 int gem_ptp_txstamp(struct macb_queue *queue, struct sk_buff *skb, struct macb_dma_desc *des); 1258 void gem_ptp_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc); 1259 static inline int gem_ptp_do_txstamp(struct macb_queue *queue, struct sk_buff *skb, struct macb_dma_desc *desc) 1260 { 1261 if (queue->bp->tstamp_config.tx_type == TSTAMP_DISABLED) 1262 return -ENOTSUPP; 1263 1264 return gem_ptp_txstamp(queue, skb, desc); 1265 } 1266 1267 static inline void gem_ptp_do_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc) 1268 { 1269 if (bp->tstamp_config.rx_filter == TSTAMP_DISABLED) 1270 return; 1271 1272 gem_ptp_rxstamp(bp, skb, desc); 1273 } 1274 int gem_get_hwtst(struct net_device *dev, struct ifreq *rq); 1275 int gem_set_hwtst(struct net_device *dev, struct ifreq *ifr, int cmd); 1276 #else 1277 static inline void gem_ptp_init(struct net_device *ndev) { } 1278 static inline void gem_ptp_remove(struct net_device *ndev) { } 1279 1280 static inline int gem_ptp_do_txstamp(struct macb_queue *queue, struct sk_buff *skb, struct macb_dma_desc *desc) 1281 { 1282 return -1; 1283 } 1284 1285 static inline void gem_ptp_do_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc) { } 1286 #endif 1287 1288 static inline bool macb_is_gem(struct macb *bp) 1289 { 1290 return !!(bp->caps & MACB_CAPS_MACB_IS_GEM); 1291 } 1292 1293 static inline bool gem_has_ptp(struct macb *bp) 1294 { 1295 return !!(bp->caps & MACB_CAPS_GEM_HAS_PTP); 1296 } 1297 1298 #endif /* _MACB_H */ 1299