1 /* 2 * AMD 10Gb Ethernet driver 3 * 4 * This file is available to you under your choice of the following two 5 * licenses: 6 * 7 * License 1: GPLv2 8 * 9 * Copyright (c) 2014-2016 Advanced Micro Devices, Inc. 10 * 11 * This file is free software; you may copy, redistribute and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation, either version 2 of the License, or (at 14 * your option) any later version. 15 * 16 * This file is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program. If not, see <http://www.gnu.org/licenses/>. 23 * 24 * This file incorporates work covered by the following copyright and 25 * permission notice: 26 * The Synopsys DWC ETHER XGMAC Software Driver and documentation 27 * (hereinafter "Software") is an unsupported proprietary work of Synopsys, 28 * Inc. unless otherwise expressly agreed to in writing between Synopsys 29 * and you. 30 * 31 * The Software IS NOT an item of Licensed Software or Licensed Product 32 * under any End User Software License Agreement or Agreement for Licensed 33 * Product with Synopsys or any supplement thereto. Permission is hereby 34 * granted, free of charge, to any person obtaining a copy of this software 35 * annotated with this license and the Software, to deal in the Software 36 * without restriction, including without limitation the rights to use, 37 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies 38 * of the Software, and to permit persons to whom the Software is furnished 39 * to do so, subject to the following conditions: 40 * 41 * The above copyright notice and this permission notice shall be included 42 * in all copies or substantial portions of the Software. 43 * 44 * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" 45 * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 46 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 47 * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS 48 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 49 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 50 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 51 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 52 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 53 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 54 * THE POSSIBILITY OF SUCH DAMAGE. 55 * 56 * 57 * License 2: Modified BSD 58 * 59 * Copyright (c) 2014-2016 Advanced Micro Devices, Inc. 60 * All rights reserved. 61 * 62 * Redistribution and use in source and binary forms, with or without 63 * modification, are permitted provided that the following conditions are met: 64 * * Redistributions of source code must retain the above copyright 65 * notice, this list of conditions and the following disclaimer. 66 * * Redistributions in binary form must reproduce the above copyright 67 * notice, this list of conditions and the following disclaimer in the 68 * documentation and/or other materials provided with the distribution. 69 * * Neither the name of Advanced Micro Devices, Inc. nor the 70 * names of its contributors may be used to endorse or promote products 71 * derived from this software without specific prior written permission. 72 * 73 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 74 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 75 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 76 * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY 77 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 78 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 79 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 80 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 81 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 82 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 83 * 84 * This file incorporates work covered by the following copyright and 85 * permission notice: 86 * The Synopsys DWC ETHER XGMAC Software Driver and documentation 87 * (hereinafter "Software") is an unsupported proprietary work of Synopsys, 88 * Inc. unless otherwise expressly agreed to in writing between Synopsys 89 * and you. 90 * 91 * The Software IS NOT an item of Licensed Software or Licensed Product 92 * under any End User Software License Agreement or Agreement for Licensed 93 * Product with Synopsys or any supplement thereto. Permission is hereby 94 * granted, free of charge, to any person obtaining a copy of this software 95 * annotated with this license and the Software, to deal in the Software 96 * without restriction, including without limitation the rights to use, 97 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies 98 * of the Software, and to permit persons to whom the Software is furnished 99 * to do so, subject to the following conditions: 100 * 101 * The above copyright notice and this permission notice shall be included 102 * in all copies or substantial portions of the Software. 103 * 104 * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" 105 * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 106 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 107 * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS 108 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 109 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 110 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 111 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 112 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 113 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 114 * THE POSSIBILITY OF SUCH DAMAGE. 115 */ 116 117 #ifndef __XGBE_H__ 118 #define __XGBE_H__ 119 120 #include <linux/dma-mapping.h> 121 #include <linux/netdevice.h> 122 #include <linux/workqueue.h> 123 #include <linux/phy.h> 124 #include <linux/if_vlan.h> 125 #include <linux/bitops.h> 126 #include <linux/ptp_clock_kernel.h> 127 #include <linux/timecounter.h> 128 #include <linux/net_tstamp.h> 129 #include <net/dcbnl.h> 130 #include <linux/completion.h> 131 #include <linux/cpumask.h> 132 #include <linux/interrupt.h> 133 #include <linux/dcache.h> 134 #include <linux/ethtool.h> 135 #include <linux/list.h> 136 137 #define XGBE_DRV_NAME "amd-xgbe" 138 #define XGBE_DRV_DESC "AMD 10 Gigabit Ethernet Driver" 139 140 /* Descriptor related defines */ 141 #define XGBE_TX_DESC_CNT 512 142 #define XGBE_TX_DESC_MIN_FREE (XGBE_TX_DESC_CNT >> 3) 143 #define XGBE_TX_DESC_MAX_PROC (XGBE_TX_DESC_CNT >> 1) 144 #define XGBE_RX_DESC_CNT 512 145 146 #define XGBE_TX_DESC_CNT_MIN 64 147 #define XGBE_TX_DESC_CNT_MAX 4096 148 #define XGBE_RX_DESC_CNT_MIN 64 149 #define XGBE_RX_DESC_CNT_MAX 4096 150 151 #define XGBE_TX_MAX_BUF_SIZE (0x3fff & ~(64 - 1)) 152 153 /* Descriptors required for maximum contiguous TSO/GSO packet */ 154 #define XGBE_TX_MAX_SPLIT \ 155 ((GSO_LEGACY_MAX_SIZE / XGBE_TX_MAX_BUF_SIZE) + 1) 156 157 /* Maximum possible descriptors needed for an SKB: 158 * - Maximum number of SKB frags 159 * - Maximum descriptors for contiguous TSO/GSO packet 160 * - Possible context descriptor 161 * - Possible TSO header descriptor 162 */ 163 #define XGBE_TX_MAX_DESCS (MAX_SKB_FRAGS + XGBE_TX_MAX_SPLIT + 2) 164 165 #define XGBE_RX_MIN_BUF_SIZE (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN) 166 #define XGBE_RX_BUF_ALIGN 64 167 #define XGBE_SKB_ALLOC_SIZE 256 168 #define XGBE_SPH_HDSMS_SIZE 2 /* Keep in sync with SKB_ALLOC_SIZE */ 169 170 #define XGBE_MAX_DMA_CHANNELS 16 171 #define XGBE_MAX_QUEUES 16 172 #define XGBE_PRIORITY_QUEUES 8 173 #define XGBE_DMA_STOP_TIMEOUT 1 174 175 /* DMA cache settings - Outer sharable, write-back, write-allocate */ 176 #define XGBE_DMA_OS_ARCR 0x002b2b2b 177 #define XGBE_DMA_OS_AWCR 0x2f2f2f2f 178 179 /* DMA cache settings - System, no caches used */ 180 #define XGBE_DMA_SYS_ARCR 0x00303030 181 #define XGBE_DMA_SYS_AWCR 0x30303030 182 183 /* DMA cache settings - PCI device */ 184 #define XGBE_DMA_PCI_ARCR 0x000f0f0f 185 #define XGBE_DMA_PCI_AWCR 0x0f0f0f0f 186 #define XGBE_DMA_PCI_AWARCR 0x00000f0f 187 188 /* DMA channel interrupt modes */ 189 #define XGBE_IRQ_MODE_EDGE 0 190 #define XGBE_IRQ_MODE_LEVEL 1 191 192 #define XGMAC_MIN_PACKET 60 193 #define XGMAC_STD_PACKET_MTU 1500 194 #define XGMAC_MAX_STD_PACKET 1518 195 #define XGMAC_JUMBO_PACKET_MTU 9000 196 #define XGMAC_MAX_JUMBO_PACKET 9018 197 #define XGMAC_ETH_PREAMBLE (12 + 8) /* Inter-frame gap + preamble */ 198 199 #define XGMAC_PFC_DATA_LEN 46 200 #define XGMAC_PFC_DELAYS 14000 201 202 #define XGMAC_PRIO_QUEUES(_cnt) \ 203 min_t(unsigned int, IEEE_8021QAZ_MAX_TCS, (_cnt)) 204 205 /* Common property names */ 206 #define XGBE_MAC_ADDR_PROPERTY "mac-address" 207 #define XGBE_PHY_MODE_PROPERTY "phy-mode" 208 #define XGBE_DMA_IRQS_PROPERTY "amd,per-channel-interrupt" 209 #define XGBE_SPEEDSET_PROPERTY "amd,speed-set" 210 211 /* Device-tree clock names */ 212 #define XGBE_DMA_CLOCK "dma_clk" 213 #define XGBE_PTP_CLOCK "ptp_clk" 214 215 /* ACPI property names */ 216 #define XGBE_ACPI_DMA_FREQ "amd,dma-freq" 217 #define XGBE_ACPI_PTP_FREQ "amd,ptp-freq" 218 219 /* PCI BAR mapping */ 220 #define XGBE_XGMAC_BAR 0 221 #define XGBE_XPCS_BAR 1 222 #define XGBE_MAC_PROP_OFFSET 0x1d000 223 #define XGBE_I2C_CTRL_OFFSET 0x1e000 224 225 /* PCI MSI/MSIx support */ 226 #define XGBE_MSI_BASE_COUNT 4 227 #define XGBE_MSI_MIN_COUNT (XGBE_MSI_BASE_COUNT + 1) 228 229 /* PCI clock frequencies */ 230 #define XGBE_V2_DMA_CLOCK_FREQ 500000000 /* 500 MHz */ 231 #define XGBE_V2_PTP_CLOCK_FREQ 125000000 /* 125 MHz */ 232 233 /* Timestamp support - values based on 50MHz PTP clock 234 * 50MHz => 20 nsec 235 */ 236 #define XGBE_TSTAMP_SSINC 20 237 #define XGBE_TSTAMP_SNSINC 0 238 239 /* Driver PMT macros */ 240 #define XGMAC_DRIVER_CONTEXT 1 241 #define XGMAC_IOCTL_CONTEXT 2 242 243 #define XGMAC_FIFO_MIN_ALLOC 2048 244 #define XGMAC_FIFO_UNIT 256 245 #define XGMAC_FIFO_ALIGN(_x) \ 246 (((_x) + XGMAC_FIFO_UNIT - 1) & ~(XGMAC_FIFO_UNIT - 1)) 247 #define XGMAC_FIFO_FC_OFF 2048 248 #define XGMAC_FIFO_FC_MIN 4096 249 250 #define XGBE_TC_MIN_QUANTUM 10 251 252 /* Helper macro for descriptor handling 253 * Always use XGBE_GET_DESC_DATA to access the descriptor data 254 * since the index is free-running and needs to be and-ed 255 * with the descriptor count value of the ring to index to 256 * the proper descriptor data. 257 */ 258 #define XGBE_GET_DESC_DATA(_ring, _idx) \ 259 ((_ring)->rdata + \ 260 ((_idx) & ((_ring)->rdesc_count - 1))) 261 262 /* Default coalescing parameters */ 263 #define XGMAC_INIT_DMA_TX_USECS 1000 264 #define XGMAC_INIT_DMA_TX_FRAMES 25 265 266 #define XGMAC_MAX_DMA_RIWT 0xff 267 #define XGMAC_INIT_DMA_RX_USECS 30 268 #define XGMAC_INIT_DMA_RX_FRAMES 25 269 270 /* Flow control queue count */ 271 #define XGMAC_MAX_FLOW_CONTROL_QUEUES 8 272 273 /* Flow control threshold units */ 274 #define XGMAC_FLOW_CONTROL_UNIT 512 275 #define XGMAC_FLOW_CONTROL_ALIGN(_x) \ 276 (((_x) + XGMAC_FLOW_CONTROL_UNIT - 1) & ~(XGMAC_FLOW_CONTROL_UNIT - 1)) 277 #define XGMAC_FLOW_CONTROL_VALUE(_x) \ 278 (((_x) < 1024) ? 0 : ((_x) / XGMAC_FLOW_CONTROL_UNIT) - 2) 279 #define XGMAC_FLOW_CONTROL_MAX 33280 280 281 /* Maximum MAC address hash table size (256 bits = 8 bytes) */ 282 #define XGBE_MAC_HASH_TABLE_SIZE 8 283 284 /* Receive Side Scaling */ 285 #define XGBE_RSS_HASH_KEY_SIZE 40 286 #define XGBE_RSS_MAX_TABLE_SIZE 256 287 #define XGBE_RSS_LOOKUP_TABLE_TYPE 0 288 #define XGBE_RSS_HASH_KEY_TYPE 1 289 290 /* Auto-negotiation */ 291 #define XGBE_AN_MS_TIMEOUT 500 292 #define XGBE_LINK_TIMEOUT 5 293 #define XGBE_KR_TRAINING_WAIT_ITER 50 294 295 #define XGBE_SGMII_AN_LINK_STATUS BIT(1) 296 #define XGBE_SGMII_AN_LINK_SPEED (BIT(2) | BIT(3)) 297 #define XGBE_SGMII_AN_LINK_SPEED_10 0x00 298 #define XGBE_SGMII_AN_LINK_SPEED_100 0x04 299 #define XGBE_SGMII_AN_LINK_SPEED_1000 0x08 300 #define XGBE_SGMII_AN_LINK_DUPLEX BIT(4) 301 302 /* ECC correctable error notification window (seconds) */ 303 #define XGBE_ECC_LIMIT 60 304 305 /* MDIO port types */ 306 #define XGMAC_MAX_C22_PORT 3 307 308 /* Link mode bit operations */ 309 #define XGBE_ZERO_SUP(_ls) \ 310 ethtool_link_ksettings_zero_link_mode((_ls), supported) 311 312 #define XGBE_SET_SUP(_ls, _mode) \ 313 ethtool_link_ksettings_add_link_mode((_ls), supported, _mode) 314 315 #define XGBE_CLR_SUP(_ls, _mode) \ 316 ethtool_link_ksettings_del_link_mode((_ls), supported, _mode) 317 318 #define XGBE_IS_SUP(_ls, _mode) \ 319 ethtool_link_ksettings_test_link_mode((_ls), supported, _mode) 320 321 #define XGBE_ZERO_ADV(_ls) \ 322 ethtool_link_ksettings_zero_link_mode((_ls), advertising) 323 324 #define XGBE_SET_ADV(_ls, _mode) \ 325 ethtool_link_ksettings_add_link_mode((_ls), advertising, _mode) 326 327 #define XGBE_CLR_ADV(_ls, _mode) \ 328 ethtool_link_ksettings_del_link_mode((_ls), advertising, _mode) 329 330 #define XGBE_ADV(_ls, _mode) \ 331 ethtool_link_ksettings_test_link_mode((_ls), advertising, _mode) 332 333 #define XGBE_ZERO_LP_ADV(_ls) \ 334 ethtool_link_ksettings_zero_link_mode((_ls), lp_advertising) 335 336 #define XGBE_SET_LP_ADV(_ls, _mode) \ 337 ethtool_link_ksettings_add_link_mode((_ls), lp_advertising, _mode) 338 339 #define XGBE_CLR_LP_ADV(_ls, _mode) \ 340 ethtool_link_ksettings_del_link_mode((_ls), lp_advertising, _mode) 341 342 #define XGBE_LP_ADV(_ls, _mode) \ 343 ethtool_link_ksettings_test_link_mode((_ls), lp_advertising, _mode) 344 345 #define XGBE_LM_COPY(_dst, _dname, _src, _sname) \ 346 bitmap_copy((_dst)->link_modes._dname, \ 347 (_src)->link_modes._sname, \ 348 __ETHTOOL_LINK_MODE_MASK_NBITS) 349 350 struct xgbe_prv_data; 351 352 struct xgbe_packet_data { 353 struct sk_buff *skb; 354 355 unsigned int attributes; 356 357 unsigned int errors; 358 359 unsigned int rdesc_count; 360 unsigned int length; 361 362 unsigned int header_len; 363 unsigned int tcp_header_len; 364 unsigned int tcp_payload_len; 365 unsigned short mss; 366 367 unsigned short vlan_ctag; 368 369 u64 rx_tstamp; 370 371 u32 rss_hash; 372 enum pkt_hash_types rss_hash_type; 373 374 unsigned int tx_packets; 375 unsigned int tx_bytes; 376 }; 377 378 /* Common Rx and Tx descriptor mapping */ 379 struct xgbe_ring_desc { 380 __le32 desc0; 381 __le32 desc1; 382 __le32 desc2; 383 __le32 desc3; 384 }; 385 386 /* Page allocation related values */ 387 struct xgbe_page_alloc { 388 struct page *pages; 389 unsigned int pages_len; 390 unsigned int pages_offset; 391 392 dma_addr_t pages_dma; 393 }; 394 395 /* Ring entry buffer data */ 396 struct xgbe_buffer_data { 397 struct xgbe_page_alloc pa; 398 struct xgbe_page_alloc pa_unmap; 399 400 dma_addr_t dma_base; 401 unsigned long dma_off; 402 unsigned int dma_len; 403 }; 404 405 /* Tx-related ring data */ 406 struct xgbe_tx_ring_data { 407 unsigned int packets; /* BQL packet count */ 408 unsigned int bytes; /* BQL byte count */ 409 }; 410 411 /* Rx-related ring data */ 412 struct xgbe_rx_ring_data { 413 struct xgbe_buffer_data hdr; /* Header locations */ 414 struct xgbe_buffer_data buf; /* Payload locations */ 415 416 unsigned short hdr_len; /* Length of received header */ 417 unsigned short len; /* Length of received packet */ 418 }; 419 420 /* Structure used to hold information related to the descriptor 421 * and the packet associated with the descriptor (always use 422 * the XGBE_GET_DESC_DATA macro to access this data from the ring) 423 */ 424 struct xgbe_ring_data { 425 struct xgbe_ring_desc *rdesc; /* Virtual address of descriptor */ 426 dma_addr_t rdesc_dma; /* DMA address of descriptor */ 427 428 struct sk_buff *skb; /* Virtual address of SKB */ 429 dma_addr_t skb_dma; /* DMA address of SKB data */ 430 unsigned int skb_dma_len; /* Length of SKB DMA area */ 431 432 struct xgbe_tx_ring_data tx; /* Tx-related data */ 433 struct xgbe_rx_ring_data rx; /* Rx-related data */ 434 435 unsigned int mapped_as_page; 436 437 /* Incomplete receive save location. If the budget is exhausted 438 * or the last descriptor (last normal descriptor or a following 439 * context descriptor) has not been DMA'd yet the current state 440 * of the receive processing needs to be saved. 441 */ 442 unsigned int state_saved; 443 struct { 444 struct sk_buff *skb; 445 unsigned int len; 446 unsigned int error; 447 } state; 448 }; 449 450 struct xgbe_ring { 451 /* Ring lock - used just for TX rings at the moment */ 452 spinlock_t lock; 453 454 /* Per packet related information */ 455 struct xgbe_packet_data packet_data; 456 457 /* Virtual/DMA addresses and count of allocated descriptor memory */ 458 struct xgbe_ring_desc *rdesc; 459 dma_addr_t rdesc_dma; 460 unsigned int rdesc_count; 461 462 /* Array of descriptor data corresponding the descriptor memory 463 * (always use the XGBE_GET_DESC_DATA macro to access this data) 464 */ 465 struct xgbe_ring_data *rdata; 466 467 /* Page allocation for RX buffers */ 468 struct xgbe_page_alloc rx_hdr_pa; 469 struct xgbe_page_alloc rx_buf_pa; 470 int node; 471 472 /* Ring index values 473 * cur - Tx: index of descriptor to be used for current transfer 474 * Rx: index of descriptor to check for packet availability 475 * dirty - Tx: index of descriptor to check for transfer complete 476 * Rx: index of descriptor to check for buffer reallocation 477 */ 478 unsigned int cur; 479 unsigned int dirty; 480 481 /* Coalesce frame count used for interrupt bit setting */ 482 unsigned int coalesce_count; 483 484 union { 485 struct { 486 unsigned int queue_stopped; 487 unsigned int xmit_more; 488 unsigned short cur_mss; 489 unsigned short cur_vlan_ctag; 490 } tx; 491 }; 492 } ____cacheline_aligned; 493 494 /* Structure used to describe the descriptor rings associated with 495 * a DMA channel. 496 */ 497 struct xgbe_channel { 498 char name[16]; 499 500 /* Address of private data area for device */ 501 struct xgbe_prv_data *pdata; 502 503 /* Queue index and base address of queue's DMA registers */ 504 unsigned int queue_index; 505 void __iomem *dma_regs; 506 507 /* Per channel interrupt irq number */ 508 int dma_irq; 509 char dma_irq_name[IFNAMSIZ + 32]; 510 511 /* Netdev related settings */ 512 struct napi_struct napi; 513 514 /* Per channel interrupt enablement tracker */ 515 unsigned int curr_ier; 516 unsigned int saved_ier; 517 518 unsigned int tx_timer_active; 519 struct timer_list tx_timer; 520 521 struct xgbe_ring *tx_ring; 522 struct xgbe_ring *rx_ring; 523 524 int node; 525 cpumask_t affinity_mask; 526 } ____cacheline_aligned; 527 528 enum xgbe_state { 529 XGBE_DOWN, 530 XGBE_LINK_INIT, 531 XGBE_LINK_ERR, 532 XGBE_STOPPED, 533 }; 534 535 enum xgbe_int { 536 XGMAC_INT_DMA_CH_SR_TI, 537 XGMAC_INT_DMA_CH_SR_TPS, 538 XGMAC_INT_DMA_CH_SR_TBU, 539 XGMAC_INT_DMA_CH_SR_RI, 540 XGMAC_INT_DMA_CH_SR_RBU, 541 XGMAC_INT_DMA_CH_SR_RPS, 542 XGMAC_INT_DMA_CH_SR_TI_RI, 543 XGMAC_INT_DMA_CH_SR_FBE, 544 XGMAC_INT_DMA_ALL, 545 }; 546 547 enum xgbe_int_state { 548 XGMAC_INT_STATE_SAVE, 549 XGMAC_INT_STATE_RESTORE, 550 }; 551 552 enum xgbe_ecc_sec { 553 XGBE_ECC_SEC_TX, 554 XGBE_ECC_SEC_RX, 555 XGBE_ECC_SEC_DESC, 556 }; 557 558 enum xgbe_speed { 559 XGBE_SPEED_1000 = 0, 560 XGBE_SPEED_2500, 561 XGBE_SPEED_10000, 562 XGBE_SPEEDS, 563 }; 564 565 enum xgbe_xpcs_access { 566 XGBE_XPCS_ACCESS_V1 = 0, 567 XGBE_XPCS_ACCESS_V2, 568 }; 569 570 enum xgbe_an_mode { 571 XGBE_AN_MODE_CL73 = 0, 572 XGBE_AN_MODE_CL73_REDRV, 573 XGBE_AN_MODE_CL37, 574 XGBE_AN_MODE_CL37_SGMII, 575 XGBE_AN_MODE_NONE, 576 }; 577 578 enum xgbe_an { 579 XGBE_AN_READY = 0, 580 XGBE_AN_PAGE_RECEIVED, 581 XGBE_AN_INCOMPAT_LINK, 582 XGBE_AN_COMPLETE, 583 XGBE_AN_NO_LINK, 584 XGBE_AN_ERROR, 585 }; 586 587 enum xgbe_rx { 588 XGBE_RX_BPA = 0, 589 XGBE_RX_XNP, 590 XGBE_RX_COMPLETE, 591 XGBE_RX_ERROR, 592 }; 593 594 enum xgbe_mode { 595 XGBE_MODE_KX_1000 = 0, 596 XGBE_MODE_KX_2500, 597 XGBE_MODE_KR, 598 XGBE_MODE_X, 599 XGBE_MODE_SGMII_10, 600 XGBE_MODE_SGMII_100, 601 XGBE_MODE_SGMII_1000, 602 XGBE_MODE_SFI, 603 XGBE_MODE_UNKNOWN, 604 }; 605 606 enum xgbe_speedset { 607 XGBE_SPEEDSET_1000_10000 = 0, 608 XGBE_SPEEDSET_2500_10000, 609 }; 610 611 enum xgbe_mdio_mode { 612 XGBE_MDIO_MODE_NONE = 0, 613 XGBE_MDIO_MODE_CL22, 614 XGBE_MDIO_MODE_CL45, 615 }; 616 617 enum xgbe_mb_cmd { 618 XGBE_MB_CMD_POWER_OFF = 0, 619 XGBE_MB_CMD_SET_1G, 620 XGBE_MB_CMD_SET_2_5G, 621 XGBE_MB_CMD_SET_10G_SFI, 622 XGBE_MB_CMD_SET_10G_KR, 623 XGBE_MB_CMD_RRC 624 }; 625 626 enum xgbe_mb_subcmd { 627 XGBE_MB_SUBCMD_NONE = 0, 628 XGBE_MB_SUBCMD_RX_ADAP, 629 630 /* 10GbE SFP subcommands */ 631 XGBE_MB_SUBCMD_ACTIVE = 0, 632 XGBE_MB_SUBCMD_PASSIVE_1M, 633 XGBE_MB_SUBCMD_PASSIVE_3M, 634 XGBE_MB_SUBCMD_PASSIVE_OTHER, 635 636 /* 1GbE Mode subcommands */ 637 XGBE_MB_SUBCMD_10MBITS = 0, 638 XGBE_MB_SUBCMD_100MBITS, 639 XGBE_MB_SUBCMD_1G_SGMII, 640 XGBE_MB_SUBCMD_1G_KX 641 }; 642 643 struct xgbe_phy { 644 struct ethtool_link_ksettings lks; 645 646 int address; 647 648 int autoneg; 649 int speed; 650 int duplex; 651 652 int link; 653 654 int pause_autoneg; 655 int tx_pause; 656 int rx_pause; 657 }; 658 659 enum xgbe_i2c_cmd { 660 XGBE_I2C_CMD_READ = 0, 661 XGBE_I2C_CMD_WRITE, 662 }; 663 664 struct xgbe_i2c_op { 665 enum xgbe_i2c_cmd cmd; 666 667 unsigned int target; 668 669 void *buf; 670 unsigned int len; 671 }; 672 673 struct xgbe_i2c_op_state { 674 struct xgbe_i2c_op *op; 675 676 unsigned int tx_len; 677 unsigned char *tx_buf; 678 679 unsigned int rx_len; 680 unsigned char *rx_buf; 681 682 unsigned int tx_abort_source; 683 684 int ret; 685 }; 686 687 struct xgbe_i2c { 688 unsigned int started; 689 unsigned int max_speed_mode; 690 unsigned int rx_fifo_size; 691 unsigned int tx_fifo_size; 692 693 struct xgbe_i2c_op_state op_state; 694 }; 695 696 struct xgbe_mmc_stats { 697 /* Tx Stats */ 698 u64 txoctetcount_gb; 699 u64 txframecount_gb; 700 u64 txbroadcastframes_g; 701 u64 txmulticastframes_g; 702 u64 tx64octets_gb; 703 u64 tx65to127octets_gb; 704 u64 tx128to255octets_gb; 705 u64 tx256to511octets_gb; 706 u64 tx512to1023octets_gb; 707 u64 tx1024tomaxoctets_gb; 708 u64 txunicastframes_gb; 709 u64 txmulticastframes_gb; 710 u64 txbroadcastframes_gb; 711 u64 txunderflowerror; 712 u64 txoctetcount_g; 713 u64 txframecount_g; 714 u64 txpauseframes; 715 u64 txvlanframes_g; 716 717 /* Rx Stats */ 718 u64 rxframecount_gb; 719 u64 rxoctetcount_gb; 720 u64 rxoctetcount_g; 721 u64 rxbroadcastframes_g; 722 u64 rxmulticastframes_g; 723 u64 rxcrcerror; 724 u64 rxrunterror; 725 u64 rxjabbererror; 726 u64 rxundersize_g; 727 u64 rxoversize_g; 728 u64 rx64octets_gb; 729 u64 rx65to127octets_gb; 730 u64 rx128to255octets_gb; 731 u64 rx256to511octets_gb; 732 u64 rx512to1023octets_gb; 733 u64 rx1024tomaxoctets_gb; 734 u64 rxunicastframes_g; 735 u64 rxlengtherror; 736 u64 rxoutofrangetype; 737 u64 rxpauseframes; 738 u64 rxfifooverflow; 739 u64 rxvlanframes_gb; 740 u64 rxwatchdogerror; 741 }; 742 743 struct xgbe_ext_stats { 744 u64 tx_tso_packets; 745 u64 rx_split_header_packets; 746 u64 rx_buffer_unavailable; 747 748 u64 txq_packets[XGBE_MAX_DMA_CHANNELS]; 749 u64 txq_bytes[XGBE_MAX_DMA_CHANNELS]; 750 u64 rxq_packets[XGBE_MAX_DMA_CHANNELS]; 751 u64 rxq_bytes[XGBE_MAX_DMA_CHANNELS]; 752 753 u64 tx_vxlan_packets; 754 u64 rx_vxlan_packets; 755 u64 rx_csum_errors; 756 u64 rx_vxlan_csum_errors; 757 }; 758 759 struct xgbe_hw_if { 760 int (*tx_complete)(struct xgbe_ring_desc *); 761 762 int (*set_mac_address)(struct xgbe_prv_data *, const u8 *addr); 763 int (*config_rx_mode)(struct xgbe_prv_data *); 764 765 int (*enable_rx_csum)(struct xgbe_prv_data *); 766 int (*disable_rx_csum)(struct xgbe_prv_data *); 767 768 int (*enable_rx_vlan_stripping)(struct xgbe_prv_data *); 769 int (*disable_rx_vlan_stripping)(struct xgbe_prv_data *); 770 int (*enable_rx_vlan_filtering)(struct xgbe_prv_data *); 771 int (*disable_rx_vlan_filtering)(struct xgbe_prv_data *); 772 int (*update_vlan_hash_table)(struct xgbe_prv_data *); 773 774 int (*read_mmd_regs)(struct xgbe_prv_data *, int, int); 775 void (*write_mmd_regs)(struct xgbe_prv_data *, int, int, int); 776 int (*set_speed)(struct xgbe_prv_data *, int); 777 778 int (*set_ext_mii_mode)(struct xgbe_prv_data *, unsigned int, 779 enum xgbe_mdio_mode); 780 int (*read_ext_mii_regs_c22)(struct xgbe_prv_data *, int, int); 781 int (*write_ext_mii_regs_c22)(struct xgbe_prv_data *, int, int, u16); 782 int (*read_ext_mii_regs_c45)(struct xgbe_prv_data *, int, int, int); 783 int (*write_ext_mii_regs_c45)(struct xgbe_prv_data *, int, int, int, 784 u16); 785 786 int (*set_gpio)(struct xgbe_prv_data *, unsigned int); 787 int (*clr_gpio)(struct xgbe_prv_data *, unsigned int); 788 789 void (*enable_tx)(struct xgbe_prv_data *); 790 void (*disable_tx)(struct xgbe_prv_data *); 791 void (*enable_rx)(struct xgbe_prv_data *); 792 void (*disable_rx)(struct xgbe_prv_data *); 793 794 void (*powerup_tx)(struct xgbe_prv_data *); 795 void (*powerdown_tx)(struct xgbe_prv_data *); 796 void (*powerup_rx)(struct xgbe_prv_data *); 797 void (*powerdown_rx)(struct xgbe_prv_data *); 798 799 int (*init)(struct xgbe_prv_data *); 800 int (*exit)(struct xgbe_prv_data *); 801 802 int (*enable_int)(struct xgbe_channel *, enum xgbe_int); 803 int (*disable_int)(struct xgbe_channel *, enum xgbe_int); 804 void (*dev_xmit)(struct xgbe_channel *); 805 int (*dev_read)(struct xgbe_channel *); 806 void (*tx_desc_init)(struct xgbe_channel *); 807 void (*rx_desc_init)(struct xgbe_channel *); 808 void (*tx_desc_reset)(struct xgbe_ring_data *); 809 void (*rx_desc_reset)(struct xgbe_prv_data *, struct xgbe_ring_data *, 810 unsigned int); 811 int (*is_last_desc)(struct xgbe_ring_desc *); 812 int (*is_context_desc)(struct xgbe_ring_desc *); 813 void (*tx_start_xmit)(struct xgbe_channel *, struct xgbe_ring *); 814 815 /* For FLOW ctrl */ 816 int (*config_tx_flow_control)(struct xgbe_prv_data *); 817 int (*config_rx_flow_control)(struct xgbe_prv_data *); 818 819 /* For RX coalescing */ 820 int (*config_rx_coalesce)(struct xgbe_prv_data *); 821 int (*config_tx_coalesce)(struct xgbe_prv_data *); 822 unsigned int (*usec_to_riwt)(struct xgbe_prv_data *, unsigned int); 823 unsigned int (*riwt_to_usec)(struct xgbe_prv_data *, unsigned int); 824 825 /* For RX and TX threshold config */ 826 int (*config_rx_threshold)(struct xgbe_prv_data *, unsigned int); 827 int (*config_tx_threshold)(struct xgbe_prv_data *, unsigned int); 828 829 /* For RX and TX Store and Forward Mode config */ 830 int (*config_rsf_mode)(struct xgbe_prv_data *, unsigned int); 831 int (*config_tsf_mode)(struct xgbe_prv_data *, unsigned int); 832 833 /* For TX DMA Operate on Second Frame config */ 834 int (*config_osp_mode)(struct xgbe_prv_data *); 835 836 /* For MMC statistics */ 837 void (*rx_mmc_int)(struct xgbe_prv_data *); 838 void (*tx_mmc_int)(struct xgbe_prv_data *); 839 void (*read_mmc_stats)(struct xgbe_prv_data *); 840 841 /* For Timestamp config */ 842 int (*config_tstamp)(struct xgbe_prv_data *, unsigned int); 843 void (*update_tstamp_addend)(struct xgbe_prv_data *, unsigned int); 844 void (*set_tstamp_time)(struct xgbe_prv_data *, unsigned int sec, 845 unsigned int nsec); 846 u64 (*get_tstamp_time)(struct xgbe_prv_data *); 847 u64 (*get_tx_tstamp)(struct xgbe_prv_data *); 848 849 /* For Data Center Bridging config */ 850 void (*config_tc)(struct xgbe_prv_data *); 851 void (*config_dcb_tc)(struct xgbe_prv_data *); 852 void (*config_dcb_pfc)(struct xgbe_prv_data *); 853 854 /* For Receive Side Scaling */ 855 int (*enable_rss)(struct xgbe_prv_data *); 856 int (*disable_rss)(struct xgbe_prv_data *); 857 int (*set_rss_hash_key)(struct xgbe_prv_data *, const u8 *); 858 int (*set_rss_lookup_table)(struct xgbe_prv_data *, const u32 *); 859 860 /* For ECC */ 861 void (*disable_ecc_ded)(struct xgbe_prv_data *); 862 void (*disable_ecc_sec)(struct xgbe_prv_data *, enum xgbe_ecc_sec); 863 864 /* For VXLAN */ 865 void (*enable_vxlan)(struct xgbe_prv_data *); 866 void (*disable_vxlan)(struct xgbe_prv_data *); 867 void (*set_vxlan_id)(struct xgbe_prv_data *); 868 }; 869 870 /* This structure represents implementation specific routines for an 871 * implementation of a PHY. All routines are required unless noted below. 872 * Optional routines: 873 * an_pre, an_post 874 * kr_training_pre, kr_training_post 875 * module_info, module_eeprom 876 */ 877 struct xgbe_phy_impl_if { 878 /* Perform Setup/teardown actions */ 879 int (*init)(struct xgbe_prv_data *); 880 void (*exit)(struct xgbe_prv_data *); 881 882 /* Perform start/stop specific actions */ 883 int (*reset)(struct xgbe_prv_data *); 884 int (*start)(struct xgbe_prv_data *); 885 void (*stop)(struct xgbe_prv_data *); 886 887 /* Return the link status */ 888 int (*link_status)(struct xgbe_prv_data *, int *); 889 890 /* Indicate if a particular speed is valid */ 891 bool (*valid_speed)(struct xgbe_prv_data *, int); 892 893 /* Check if the specified mode can/should be used */ 894 bool (*use_mode)(struct xgbe_prv_data *, enum xgbe_mode); 895 /* Switch the PHY into various modes */ 896 void (*set_mode)(struct xgbe_prv_data *, enum xgbe_mode); 897 /* Retrieve mode needed for a specific speed */ 898 enum xgbe_mode (*get_mode)(struct xgbe_prv_data *, int); 899 /* Retrieve new/next mode when trying to auto-negotiate */ 900 enum xgbe_mode (*switch_mode)(struct xgbe_prv_data *); 901 /* Retrieve current mode */ 902 enum xgbe_mode (*cur_mode)(struct xgbe_prv_data *); 903 904 /* Retrieve current auto-negotiation mode */ 905 enum xgbe_an_mode (*an_mode)(struct xgbe_prv_data *); 906 907 /* Configure auto-negotiation settings */ 908 int (*an_config)(struct xgbe_prv_data *); 909 910 /* Set/override auto-negotiation advertisement settings */ 911 void (*an_advertising)(struct xgbe_prv_data *, 912 struct ethtool_link_ksettings *); 913 914 /* Process results of auto-negotiation */ 915 enum xgbe_mode (*an_outcome)(struct xgbe_prv_data *); 916 917 /* Pre/Post auto-negotiation support */ 918 void (*an_pre)(struct xgbe_prv_data *); 919 void (*an_post)(struct xgbe_prv_data *); 920 921 /* Pre/Post KR training enablement support */ 922 void (*kr_training_pre)(struct xgbe_prv_data *); 923 void (*kr_training_post)(struct xgbe_prv_data *); 924 925 /* SFP module related info */ 926 int (*module_info)(struct xgbe_prv_data *pdata, 927 struct ethtool_modinfo *modinfo); 928 int (*module_eeprom)(struct xgbe_prv_data *pdata, 929 struct ethtool_eeprom *eeprom, u8 *data); 930 }; 931 932 struct xgbe_phy_if { 933 /* For PHY setup/teardown */ 934 int (*phy_init)(struct xgbe_prv_data *); 935 void (*phy_exit)(struct xgbe_prv_data *); 936 937 /* For PHY support when setting device up/down */ 938 int (*phy_reset)(struct xgbe_prv_data *); 939 int (*phy_start)(struct xgbe_prv_data *); 940 void (*phy_stop)(struct xgbe_prv_data *); 941 942 /* For PHY support while device is up */ 943 void (*phy_status)(struct xgbe_prv_data *); 944 int (*phy_config_aneg)(struct xgbe_prv_data *); 945 946 /* For PHY settings validation */ 947 bool (*phy_valid_speed)(struct xgbe_prv_data *, int); 948 949 /* For single interrupt support */ 950 irqreturn_t (*an_isr)(struct xgbe_prv_data *); 951 952 /* For ethtool PHY support */ 953 int (*module_info)(struct xgbe_prv_data *pdata, 954 struct ethtool_modinfo *modinfo); 955 int (*module_eeprom)(struct xgbe_prv_data *pdata, 956 struct ethtool_eeprom *eeprom, u8 *data); 957 958 /* PHY implementation specific services */ 959 struct xgbe_phy_impl_if phy_impl; 960 }; 961 962 struct xgbe_i2c_if { 963 /* For initial I2C setup */ 964 int (*i2c_init)(struct xgbe_prv_data *); 965 966 /* For I2C support when setting device up/down */ 967 int (*i2c_start)(struct xgbe_prv_data *); 968 void (*i2c_stop)(struct xgbe_prv_data *); 969 970 /* For performing I2C operations */ 971 int (*i2c_xfer)(struct xgbe_prv_data *, struct xgbe_i2c_op *); 972 973 /* For single interrupt support */ 974 irqreturn_t (*i2c_isr)(struct xgbe_prv_data *); 975 }; 976 977 struct xgbe_desc_if { 978 int (*alloc_ring_resources)(struct xgbe_prv_data *); 979 void (*free_ring_resources)(struct xgbe_prv_data *); 980 int (*map_tx_skb)(struct xgbe_channel *, struct sk_buff *); 981 int (*map_rx_buffer)(struct xgbe_prv_data *, struct xgbe_ring *, 982 struct xgbe_ring_data *); 983 void (*unmap_rdata)(struct xgbe_prv_data *, struct xgbe_ring_data *); 984 void (*wrapper_tx_desc_init)(struct xgbe_prv_data *); 985 void (*wrapper_rx_desc_init)(struct xgbe_prv_data *); 986 }; 987 988 /* This structure contains flags that indicate what hardware features 989 * or configurations are present in the device. 990 */ 991 struct xgbe_hw_features { 992 /* HW Version */ 993 unsigned int version; 994 995 /* HW Feature Register0 */ 996 unsigned int gmii; /* 1000 Mbps support */ 997 unsigned int vlhash; /* VLAN Hash Filter */ 998 unsigned int sma; /* SMA(MDIO) Interface */ 999 unsigned int rwk; /* PMT remote wake-up packet */ 1000 unsigned int mgk; /* PMT magic packet */ 1001 unsigned int mmc; /* RMON module */ 1002 unsigned int aoe; /* ARP Offload */ 1003 unsigned int ts; /* IEEE 1588-2008 Advanced Timestamp */ 1004 unsigned int eee; /* Energy Efficient Ethernet */ 1005 unsigned int tx_coe; /* Tx Checksum Offload */ 1006 unsigned int rx_coe; /* Rx Checksum Offload */ 1007 unsigned int addn_mac; /* Additional MAC Addresses */ 1008 unsigned int ts_src; /* Timestamp Source */ 1009 unsigned int sa_vlan_ins; /* Source Address or VLAN Insertion */ 1010 unsigned int vxn; /* VXLAN/NVGRE */ 1011 1012 /* HW Feature Register1 */ 1013 unsigned int rx_fifo_size; /* MTL Receive FIFO Size */ 1014 unsigned int tx_fifo_size; /* MTL Transmit FIFO Size */ 1015 unsigned int adv_ts_hi; /* Advance Timestamping High Word */ 1016 unsigned int dma_width; /* DMA width */ 1017 unsigned int dcb; /* DCB Feature */ 1018 unsigned int sph; /* Split Header Feature */ 1019 unsigned int tso; /* TCP Segmentation Offload */ 1020 unsigned int dma_debug; /* DMA Debug Registers */ 1021 unsigned int rss; /* Receive Side Scaling */ 1022 unsigned int tc_cnt; /* Number of Traffic Classes */ 1023 unsigned int hash_table_size; /* Hash Table Size */ 1024 unsigned int l3l4_filter_num; /* Number of L3-L4 Filters */ 1025 1026 /* HW Feature Register2 */ 1027 unsigned int rx_q_cnt; /* Number of MTL Receive Queues */ 1028 unsigned int tx_q_cnt; /* Number of MTL Transmit Queues */ 1029 unsigned int rx_ch_cnt; /* Number of DMA Receive Channels */ 1030 unsigned int tx_ch_cnt; /* Number of DMA Transmit Channels */ 1031 unsigned int pps_out_num; /* Number of PPS outputs */ 1032 unsigned int aux_snap_num; /* Number of Aux snapshot inputs */ 1033 }; 1034 1035 struct xgbe_version_data { 1036 void (*init_function_ptrs_phy_impl)(struct xgbe_phy_if *); 1037 enum xgbe_xpcs_access xpcs_access; 1038 unsigned int mmc_64bit; 1039 unsigned int tx_max_fifo_size; 1040 unsigned int rx_max_fifo_size; 1041 unsigned int tx_tstamp_workaround; 1042 unsigned int ecc_support; 1043 unsigned int i2c_support; 1044 unsigned int irq_reissue_support; 1045 unsigned int tx_desc_prefetch; 1046 unsigned int rx_desc_prefetch; 1047 unsigned int an_cdr_workaround; 1048 unsigned int enable_rrc; 1049 }; 1050 1051 struct xgbe_prv_data { 1052 struct net_device *netdev; 1053 struct pci_dev *pcidev; 1054 struct platform_device *platdev; 1055 struct acpi_device *adev; 1056 struct device *dev; 1057 struct platform_device *phy_platdev; 1058 struct device *phy_dev; 1059 1060 /* Version related data */ 1061 struct xgbe_version_data *vdata; 1062 1063 /* ACPI or DT flag */ 1064 unsigned int use_acpi; 1065 1066 /* XGMAC/XPCS related mmio registers */ 1067 void __iomem *xgmac_regs; /* XGMAC CSRs */ 1068 void __iomem *xpcs_regs; /* XPCS MMD registers */ 1069 void __iomem *rxtx_regs; /* SerDes Rx/Tx CSRs */ 1070 void __iomem *sir0_regs; /* SerDes integration registers (1/2) */ 1071 void __iomem *sir1_regs; /* SerDes integration registers (2/2) */ 1072 void __iomem *xprop_regs; /* XGBE property registers */ 1073 void __iomem *xi2c_regs; /* XGBE I2C CSRs */ 1074 1075 /* Port property registers */ 1076 unsigned int pp0; 1077 unsigned int pp1; 1078 unsigned int pp2; 1079 unsigned int pp3; 1080 unsigned int pp4; 1081 1082 /* Overall device lock */ 1083 spinlock_t lock; 1084 1085 /* XPCS indirect addressing lock */ 1086 spinlock_t xpcs_lock; 1087 unsigned int xpcs_window_def_reg; 1088 unsigned int xpcs_window_sel_reg; 1089 unsigned int xpcs_window; 1090 unsigned int xpcs_window_size; 1091 unsigned int xpcs_window_mask; 1092 1093 /* RSS addressing mutex */ 1094 struct mutex rss_mutex; 1095 1096 /* Flags representing xgbe_state */ 1097 unsigned long dev_state; 1098 1099 /* ECC support */ 1100 unsigned long tx_sec_period; 1101 unsigned long tx_ded_period; 1102 unsigned long rx_sec_period; 1103 unsigned long rx_ded_period; 1104 unsigned long desc_sec_period; 1105 unsigned long desc_ded_period; 1106 1107 unsigned int tx_sec_count; 1108 unsigned int tx_ded_count; 1109 unsigned int rx_sec_count; 1110 unsigned int rx_ded_count; 1111 unsigned int desc_ded_count; 1112 unsigned int desc_sec_count; 1113 1114 int dev_irq; 1115 int ecc_irq; 1116 int i2c_irq; 1117 int channel_irq[XGBE_MAX_DMA_CHANNELS]; 1118 1119 unsigned int per_channel_irq; 1120 unsigned int irq_count; 1121 unsigned int channel_irq_count; 1122 unsigned int channel_irq_mode; 1123 1124 char ecc_name[IFNAMSIZ + 32]; 1125 1126 struct xgbe_hw_if hw_if; 1127 struct xgbe_phy_if phy_if; 1128 struct xgbe_desc_if desc_if; 1129 struct xgbe_i2c_if i2c_if; 1130 1131 /* AXI DMA settings */ 1132 unsigned int coherent; 1133 unsigned int arcr; 1134 unsigned int awcr; 1135 unsigned int awarcr; 1136 1137 /* Service routine support */ 1138 struct workqueue_struct *dev_workqueue; 1139 struct work_struct service_work; 1140 struct timer_list service_timer; 1141 1142 /* Rings for Tx/Rx on a DMA channel */ 1143 struct xgbe_channel *channel[XGBE_MAX_DMA_CHANNELS]; 1144 unsigned int tx_max_channel_count; 1145 unsigned int rx_max_channel_count; 1146 unsigned int channel_count; 1147 unsigned int tx_ring_count; 1148 unsigned int tx_desc_count; 1149 unsigned int rx_ring_count; 1150 unsigned int rx_desc_count; 1151 1152 unsigned int new_tx_ring_count; 1153 unsigned int new_rx_ring_count; 1154 1155 unsigned int tx_max_q_count; 1156 unsigned int rx_max_q_count; 1157 unsigned int tx_q_count; 1158 unsigned int rx_q_count; 1159 1160 /* Tx/Rx common settings */ 1161 unsigned int blen; 1162 unsigned int pbl; 1163 unsigned int aal; 1164 unsigned int rd_osr_limit; 1165 unsigned int wr_osr_limit; 1166 1167 /* Tx settings */ 1168 unsigned int tx_sf_mode; 1169 unsigned int tx_threshold; 1170 unsigned int tx_osp_mode; 1171 unsigned int tx_max_fifo_size; 1172 1173 /* Rx settings */ 1174 unsigned int rx_sf_mode; 1175 unsigned int rx_threshold; 1176 unsigned int rx_max_fifo_size; 1177 1178 /* Tx coalescing settings */ 1179 unsigned int tx_usecs; 1180 unsigned int tx_frames; 1181 1182 /* Rx coalescing settings */ 1183 unsigned int rx_riwt; 1184 unsigned int rx_usecs; 1185 unsigned int rx_frames; 1186 1187 /* Current Rx buffer size */ 1188 unsigned int rx_buf_size; 1189 1190 /* Flow control settings */ 1191 unsigned int pause_autoneg; 1192 unsigned int tx_pause; 1193 unsigned int rx_pause; 1194 unsigned int rx_rfa[XGBE_MAX_QUEUES]; 1195 unsigned int rx_rfd[XGBE_MAX_QUEUES]; 1196 1197 /* Receive Side Scaling settings */ 1198 u8 rss_key[XGBE_RSS_HASH_KEY_SIZE]; 1199 u32 rss_table[XGBE_RSS_MAX_TABLE_SIZE]; 1200 u32 rss_options; 1201 1202 /* VXLAN settings */ 1203 u16 vxlan_port; 1204 1205 /* Netdev related settings */ 1206 unsigned char mac_addr[ETH_ALEN]; 1207 netdev_features_t netdev_features; 1208 struct napi_struct napi; 1209 struct xgbe_mmc_stats mmc_stats; 1210 struct xgbe_ext_stats ext_stats; 1211 1212 /* Filtering support */ 1213 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 1214 1215 /* Device clocks */ 1216 struct clk *sysclk; 1217 unsigned long sysclk_rate; 1218 struct clk *ptpclk; 1219 unsigned long ptpclk_rate; 1220 1221 /* Timestamp support */ 1222 spinlock_t tstamp_lock; 1223 struct ptp_clock_info ptp_clock_info; 1224 struct ptp_clock *ptp_clock; 1225 struct hwtstamp_config tstamp_config; 1226 struct cyclecounter tstamp_cc; 1227 struct timecounter tstamp_tc; 1228 unsigned int tstamp_addend; 1229 struct work_struct tx_tstamp_work; 1230 struct sk_buff *tx_tstamp_skb; 1231 u64 tx_tstamp; 1232 1233 /* DCB support */ 1234 struct ieee_ets *ets; 1235 struct ieee_pfc *pfc; 1236 unsigned int q2tc_map[XGBE_MAX_QUEUES]; 1237 unsigned int prio2q_map[IEEE_8021QAZ_MAX_TCS]; 1238 unsigned int pfcq[XGBE_MAX_QUEUES]; 1239 unsigned int pfc_rfa; 1240 u8 num_tcs; 1241 1242 /* Hardware features of the device */ 1243 struct xgbe_hw_features hw_feat; 1244 1245 /* Device work structures */ 1246 struct work_struct restart_work; 1247 struct work_struct stopdev_work; 1248 1249 /* Keeps track of power mode */ 1250 unsigned int power_down; 1251 1252 /* Network interface message level setting */ 1253 u32 msg_enable; 1254 1255 /* Current PHY settings */ 1256 phy_interface_t phy_mode; 1257 int phy_link; 1258 int phy_speed; 1259 1260 /* MDIO/PHY related settings */ 1261 unsigned int phy_started; 1262 void *phy_data; 1263 struct xgbe_phy phy; 1264 int mdio_mmd; 1265 unsigned long link_check; 1266 struct completion mdio_complete; 1267 1268 unsigned int kr_redrv; 1269 1270 char an_name[IFNAMSIZ + 32]; 1271 struct workqueue_struct *an_workqueue; 1272 1273 int an_irq; 1274 struct work_struct an_irq_work; 1275 1276 /* Auto-negotiation state machine support */ 1277 unsigned int an_int; 1278 unsigned int an_status; 1279 struct mutex an_mutex; 1280 enum xgbe_an an_result; 1281 enum xgbe_an an_state; 1282 enum xgbe_rx kr_state; 1283 enum xgbe_rx kx_state; 1284 struct work_struct an_work; 1285 unsigned int an_again; 1286 unsigned int an_supported; 1287 unsigned int parallel_detect; 1288 unsigned int fec_ability; 1289 unsigned long an_start; 1290 unsigned long kr_start_time; 1291 enum xgbe_an_mode an_mode; 1292 1293 /* I2C support */ 1294 struct xgbe_i2c i2c; 1295 struct mutex i2c_mutex; 1296 struct completion i2c_complete; 1297 char i2c_name[IFNAMSIZ + 32]; 1298 1299 unsigned int lpm_ctrl; /* CTRL1 for resume */ 1300 1301 unsigned int isr_as_tasklet; 1302 struct tasklet_struct tasklet_dev; 1303 struct tasklet_struct tasklet_ecc; 1304 struct tasklet_struct tasklet_i2c; 1305 struct tasklet_struct tasklet_an; 1306 1307 struct dentry *xgbe_debugfs; 1308 1309 unsigned int debugfs_xgmac_reg; 1310 1311 unsigned int debugfs_xpcs_mmd; 1312 unsigned int debugfs_xpcs_reg; 1313 1314 unsigned int debugfs_xprop_reg; 1315 1316 unsigned int debugfs_xi2c_reg; 1317 1318 bool debugfs_an_cdr_workaround; 1319 bool debugfs_an_cdr_track_early; 1320 bool en_rx_adap; 1321 int rx_adapt_retries; 1322 bool rx_adapt_done; 1323 bool mode_set; 1324 }; 1325 1326 /* Function prototypes*/ 1327 struct xgbe_prv_data *xgbe_alloc_pdata(struct device *); 1328 void xgbe_free_pdata(struct xgbe_prv_data *); 1329 void xgbe_set_counts(struct xgbe_prv_data *); 1330 int xgbe_config_netdev(struct xgbe_prv_data *); 1331 void xgbe_deconfig_netdev(struct xgbe_prv_data *); 1332 1333 int xgbe_platform_init(void); 1334 void xgbe_platform_exit(void); 1335 #ifdef CONFIG_PCI 1336 int xgbe_pci_init(void); 1337 void xgbe_pci_exit(void); 1338 #else xgbe_pci_init(void)1339 static inline int xgbe_pci_init(void) { return 0; } xgbe_pci_exit(void)1340 static inline void xgbe_pci_exit(void) { } 1341 #endif 1342 1343 void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *); 1344 void xgbe_init_function_ptrs_phy(struct xgbe_phy_if *); 1345 void xgbe_init_function_ptrs_phy_v1(struct xgbe_phy_if *); 1346 void xgbe_init_function_ptrs_phy_v2(struct xgbe_phy_if *); 1347 void xgbe_init_function_ptrs_desc(struct xgbe_desc_if *); 1348 void xgbe_init_function_ptrs_i2c(struct xgbe_i2c_if *); 1349 const struct net_device_ops *xgbe_get_netdev_ops(void); 1350 const struct ethtool_ops *xgbe_get_ethtool_ops(void); 1351 const struct udp_tunnel_nic_info *xgbe_get_udp_tunnel_info(void); 1352 1353 #ifdef CONFIG_AMD_XGBE_DCB 1354 const struct dcbnl_rtnl_ops *xgbe_get_dcbnl_ops(void); 1355 #endif 1356 1357 void xgbe_ptp_register(struct xgbe_prv_data *); 1358 void xgbe_ptp_unregister(struct xgbe_prv_data *); 1359 void xgbe_dump_tx_desc(struct xgbe_prv_data *, struct xgbe_ring *, 1360 unsigned int, unsigned int, unsigned int); 1361 void xgbe_dump_rx_desc(struct xgbe_prv_data *, struct xgbe_ring *, 1362 unsigned int); 1363 void xgbe_print_pkt(struct net_device *, struct sk_buff *, bool); 1364 void xgbe_get_all_hw_features(struct xgbe_prv_data *); 1365 int xgbe_powerup(struct net_device *, unsigned int); 1366 int xgbe_powerdown(struct net_device *, unsigned int); 1367 void xgbe_init_rx_coalesce(struct xgbe_prv_data *); 1368 void xgbe_init_tx_coalesce(struct xgbe_prv_data *); 1369 void xgbe_restart_dev(struct xgbe_prv_data *pdata); 1370 void xgbe_full_restart_dev(struct xgbe_prv_data *pdata); 1371 1372 #ifdef CONFIG_DEBUG_FS 1373 void xgbe_debugfs_init(struct xgbe_prv_data *); 1374 void xgbe_debugfs_exit(struct xgbe_prv_data *); 1375 void xgbe_debugfs_rename(struct xgbe_prv_data *pdata); 1376 #else xgbe_debugfs_init(struct xgbe_prv_data * pdata)1377 static inline void xgbe_debugfs_init(struct xgbe_prv_data *pdata) {} xgbe_debugfs_exit(struct xgbe_prv_data * pdata)1378 static inline void xgbe_debugfs_exit(struct xgbe_prv_data *pdata) {} xgbe_debugfs_rename(struct xgbe_prv_data * pdata)1379 static inline void xgbe_debugfs_rename(struct xgbe_prv_data *pdata) {} 1380 #endif /* CONFIG_DEBUG_FS */ 1381 1382 /* NOTE: Uncomment for function trace log messages in KERNEL LOG */ 1383 #if 0 1384 #define YDEBUG 1385 #define YDEBUG_MDIO 1386 #endif 1387 1388 /* For debug prints */ 1389 #ifdef YDEBUG 1390 #define DBGPR(x...) pr_alert(x) 1391 #else 1392 #define DBGPR(x...) do { } while (0) 1393 #endif 1394 1395 #ifdef YDEBUG_MDIO 1396 #define DBGPR_MDIO(x...) pr_alert(x) 1397 #else 1398 #define DBGPR_MDIO(x...) do { } while (0) 1399 #endif 1400 1401 #endif 1402