1 /* 2 * drivers/net/ethernet/freescale/gianfar_ethtool.c 3 * 4 * Gianfar Ethernet Driver 5 * Ethtool support for Gianfar Enet 6 * Based on e1000 ethtool support 7 * 8 * Author: Andy Fleming 9 * Maintainer: Kumar Gala 10 * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com> 11 * 12 * Copyright 2003-2006, 2008-2009, 2011 Freescale Semiconductor, Inc. 13 * 14 * This software may be used and distributed according to 15 * the terms of the GNU Public License, Version 2, incorporated herein 16 * by reference. 17 */ 18 19 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 20 21 #include <linux/kernel.h> 22 #include <linux/string.h> 23 #include <linux/errno.h> 24 #include <linux/interrupt.h> 25 #include <linux/delay.h> 26 #include <linux/netdevice.h> 27 #include <linux/etherdevice.h> 28 #include <linux/net_tstamp.h> 29 #include <linux/skbuff.h> 30 #include <linux/spinlock.h> 31 #include <linux/mm.h> 32 33 #include <asm/io.h> 34 #include <asm/irq.h> 35 #include <asm/uaccess.h> 36 #include <linux/module.h> 37 #include <linux/crc32.h> 38 #include <asm/types.h> 39 #include <linux/ethtool.h> 40 #include <linux/mii.h> 41 #include <linux/phy.h> 42 #include <linux/sort.h> 43 #include <linux/if_vlan.h> 44 45 #include "gianfar.h" 46 47 #define GFAR_MAX_COAL_USECS 0xffff 48 #define GFAR_MAX_COAL_FRAMES 0xff 49 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, 50 u64 *buf); 51 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf); 52 static int gfar_gcoalesce(struct net_device *dev, 53 struct ethtool_coalesce *cvals); 54 static int gfar_scoalesce(struct net_device *dev, 55 struct ethtool_coalesce *cvals); 56 static void gfar_gringparam(struct net_device *dev, 57 struct ethtool_ringparam *rvals); 58 static int gfar_sringparam(struct net_device *dev, 59 struct ethtool_ringparam *rvals); 60 static void gfar_gdrvinfo(struct net_device *dev, 61 struct ethtool_drvinfo *drvinfo); 62 63 static const char stat_gstrings[][ETH_GSTRING_LEN] = { 64 "rx-large-frame-errors", 65 "rx-short-frame-errors", 66 "rx-non-octet-errors", 67 "rx-crc-errors", 68 "rx-overrun-errors", 69 "rx-busy-errors", 70 "rx-babbling-errors", 71 "rx-truncated-frames", 72 "ethernet-bus-error", 73 "tx-babbling-errors", 74 "tx-underrun-errors", 75 "rx-skb-missing-errors", 76 "tx-timeout-errors", 77 "tx-rx-64-frames", 78 "tx-rx-65-127-frames", 79 "tx-rx-128-255-frames", 80 "tx-rx-256-511-frames", 81 "tx-rx-512-1023-frames", 82 "tx-rx-1024-1518-frames", 83 "tx-rx-1519-1522-good-vlan", 84 "rx-bytes", 85 "rx-packets", 86 "rx-fcs-errors", 87 "receive-multicast-packet", 88 "receive-broadcast-packet", 89 "rx-control-frame-packets", 90 "rx-pause-frame-packets", 91 "rx-unknown-op-code", 92 "rx-alignment-error", 93 "rx-frame-length-error", 94 "rx-code-error", 95 "rx-carrier-sense-error", 96 "rx-undersize-packets", 97 "rx-oversize-packets", 98 "rx-fragmented-frames", 99 "rx-jabber-frames", 100 "rx-dropped-frames", 101 "tx-byte-counter", 102 "tx-packets", 103 "tx-multicast-packets", 104 "tx-broadcast-packets", 105 "tx-pause-control-frames", 106 "tx-deferral-packets", 107 "tx-excessive-deferral-packets", 108 "tx-single-collision-packets", 109 "tx-multiple-collision-packets", 110 "tx-late-collision-packets", 111 "tx-excessive-collision-packets", 112 "tx-total-collision", 113 "reserved", 114 "tx-dropped-frames", 115 "tx-jabber-frames", 116 "tx-fcs-errors", 117 "tx-control-frames", 118 "tx-oversize-frames", 119 "tx-undersize-frames", 120 "tx-fragmented-frames", 121 }; 122 123 /* Fill in a buffer with the strings which correspond to the 124 * stats */ 125 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf) 126 { 127 struct gfar_private *priv = netdev_priv(dev); 128 129 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) 130 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN); 131 else 132 memcpy(buf, stat_gstrings, 133 GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN); 134 } 135 136 /* Fill in an array of 64-bit statistics from various sources. 137 * This array will be appended to the end of the ethtool_stats 138 * structure, and returned to user space 139 */ 140 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, 141 u64 *buf) 142 { 143 int i; 144 struct gfar_private *priv = netdev_priv(dev); 145 struct gfar __iomem *regs = priv->gfargrp[0].regs; 146 atomic64_t *extra = (atomic64_t *)&priv->extra_stats; 147 148 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++) 149 buf[i] = atomic64_read(&extra[i]); 150 151 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) { 152 u32 __iomem *rmon = (u32 __iomem *) ®s->rmon; 153 154 for (; i < GFAR_STATS_LEN; i++, rmon++) 155 buf[i] = (u64) gfar_read(rmon); 156 } 157 } 158 159 static int gfar_sset_count(struct net_device *dev, int sset) 160 { 161 struct gfar_private *priv = netdev_priv(dev); 162 163 switch (sset) { 164 case ETH_SS_STATS: 165 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) 166 return GFAR_STATS_LEN; 167 else 168 return GFAR_EXTRA_STATS_LEN; 169 default: 170 return -EOPNOTSUPP; 171 } 172 } 173 174 /* Fills in the drvinfo structure with some basic info */ 175 static void gfar_gdrvinfo(struct net_device *dev, 176 struct ethtool_drvinfo *drvinfo) 177 { 178 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 179 strlcpy(drvinfo->version, gfar_driver_version, 180 sizeof(drvinfo->version)); 181 strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); 182 strlcpy(drvinfo->bus_info, "N/A", sizeof(drvinfo->bus_info)); 183 drvinfo->regdump_len = 0; 184 drvinfo->eedump_len = 0; 185 } 186 187 188 static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd) 189 { 190 struct gfar_private *priv = netdev_priv(dev); 191 struct phy_device *phydev = priv->phydev; 192 193 if (NULL == phydev) 194 return -ENODEV; 195 196 return phy_ethtool_sset(phydev, cmd); 197 } 198 199 200 /* Return the current settings in the ethtool_cmd structure */ 201 static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd) 202 { 203 struct gfar_private *priv = netdev_priv(dev); 204 struct phy_device *phydev = priv->phydev; 205 struct gfar_priv_rx_q *rx_queue = NULL; 206 struct gfar_priv_tx_q *tx_queue = NULL; 207 208 if (NULL == phydev) 209 return -ENODEV; 210 tx_queue = priv->tx_queue[0]; 211 rx_queue = priv->rx_queue[0]; 212 213 /* etsec-1.7 and older versions have only one txic 214 * and rxic regs although they support multiple queues */ 215 cmd->maxtxpkt = get_icft_value(tx_queue->txic); 216 cmd->maxrxpkt = get_icft_value(rx_queue->rxic); 217 218 return phy_ethtool_gset(phydev, cmd); 219 } 220 221 /* Return the length of the register structure */ 222 static int gfar_reglen(struct net_device *dev) 223 { 224 return sizeof (struct gfar); 225 } 226 227 /* Return a dump of the GFAR register space */ 228 static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, 229 void *regbuf) 230 { 231 int i; 232 struct gfar_private *priv = netdev_priv(dev); 233 u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs; 234 u32 *buf = (u32 *) regbuf; 235 236 for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++) 237 buf[i] = gfar_read(&theregs[i]); 238 } 239 240 /* Convert microseconds to ethernet clock ticks, which changes 241 * depending on what speed the controller is running at */ 242 static unsigned int gfar_usecs2ticks(struct gfar_private *priv, 243 unsigned int usecs) 244 { 245 unsigned int count; 246 247 /* The timer is different, depending on the interface speed */ 248 switch (priv->phydev->speed) { 249 case SPEED_1000: 250 count = GFAR_GBIT_TIME; 251 break; 252 case SPEED_100: 253 count = GFAR_100_TIME; 254 break; 255 case SPEED_10: 256 default: 257 count = GFAR_10_TIME; 258 break; 259 } 260 261 /* Make sure we return a number greater than 0 262 * if usecs > 0 */ 263 return (usecs * 1000 + count - 1) / count; 264 } 265 266 /* Convert ethernet clock ticks to microseconds */ 267 static unsigned int gfar_ticks2usecs(struct gfar_private *priv, 268 unsigned int ticks) 269 { 270 unsigned int count; 271 272 /* The timer is different, depending on the interface speed */ 273 switch (priv->phydev->speed) { 274 case SPEED_1000: 275 count = GFAR_GBIT_TIME; 276 break; 277 case SPEED_100: 278 count = GFAR_100_TIME; 279 break; 280 case SPEED_10: 281 default: 282 count = GFAR_10_TIME; 283 break; 284 } 285 286 /* Make sure we return a number greater than 0 */ 287 /* if ticks is > 0 */ 288 return (ticks * count) / 1000; 289 } 290 291 /* Get the coalescing parameters, and put them in the cvals 292 * structure. */ 293 static int gfar_gcoalesce(struct net_device *dev, 294 struct ethtool_coalesce *cvals) 295 { 296 struct gfar_private *priv = netdev_priv(dev); 297 struct gfar_priv_rx_q *rx_queue = NULL; 298 struct gfar_priv_tx_q *tx_queue = NULL; 299 unsigned long rxtime; 300 unsigned long rxcount; 301 unsigned long txtime; 302 unsigned long txcount; 303 304 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) 305 return -EOPNOTSUPP; 306 307 if (NULL == priv->phydev) 308 return -ENODEV; 309 310 rx_queue = priv->rx_queue[0]; 311 tx_queue = priv->tx_queue[0]; 312 313 rxtime = get_ictt_value(rx_queue->rxic); 314 rxcount = get_icft_value(rx_queue->rxic); 315 txtime = get_ictt_value(tx_queue->txic); 316 txcount = get_icft_value(tx_queue->txic); 317 cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime); 318 cvals->rx_max_coalesced_frames = rxcount; 319 320 cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime); 321 cvals->tx_max_coalesced_frames = txcount; 322 323 cvals->use_adaptive_rx_coalesce = 0; 324 cvals->use_adaptive_tx_coalesce = 0; 325 326 cvals->pkt_rate_low = 0; 327 cvals->rx_coalesce_usecs_low = 0; 328 cvals->rx_max_coalesced_frames_low = 0; 329 cvals->tx_coalesce_usecs_low = 0; 330 cvals->tx_max_coalesced_frames_low = 0; 331 332 /* When the packet rate is below pkt_rate_high but above 333 * pkt_rate_low (both measured in packets per second) the 334 * normal {rx,tx}_* coalescing parameters are used. 335 */ 336 337 /* When the packet rate is (measured in packets per second) 338 * is above pkt_rate_high, the {rx,tx}_*_high parameters are 339 * used. 340 */ 341 cvals->pkt_rate_high = 0; 342 cvals->rx_coalesce_usecs_high = 0; 343 cvals->rx_max_coalesced_frames_high = 0; 344 cvals->tx_coalesce_usecs_high = 0; 345 cvals->tx_max_coalesced_frames_high = 0; 346 347 /* How often to do adaptive coalescing packet rate sampling, 348 * measured in seconds. Must not be zero. 349 */ 350 cvals->rate_sample_interval = 0; 351 352 return 0; 353 } 354 355 /* Change the coalescing values. 356 * Both cvals->*_usecs and cvals->*_frames have to be > 0 357 * in order for coalescing to be active 358 */ 359 static int gfar_scoalesce(struct net_device *dev, 360 struct ethtool_coalesce *cvals) 361 { 362 struct gfar_private *priv = netdev_priv(dev); 363 int i, err = 0; 364 365 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) 366 return -EOPNOTSUPP; 367 368 if (NULL == priv->phydev) 369 return -ENODEV; 370 371 /* Check the bounds of the values */ 372 if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) { 373 netdev_info(dev, "Coalescing is limited to %d microseconds\n", 374 GFAR_MAX_COAL_USECS); 375 return -EINVAL; 376 } 377 378 if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { 379 netdev_info(dev, "Coalescing is limited to %d frames\n", 380 GFAR_MAX_COAL_FRAMES); 381 return -EINVAL; 382 } 383 384 /* Check the bounds of the values */ 385 if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) { 386 netdev_info(dev, "Coalescing is limited to %d microseconds\n", 387 GFAR_MAX_COAL_USECS); 388 return -EINVAL; 389 } 390 391 if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { 392 netdev_info(dev, "Coalescing is limited to %d frames\n", 393 GFAR_MAX_COAL_FRAMES); 394 return -EINVAL; 395 } 396 397 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state)) 398 cpu_relax(); 399 400 /* Set up rx coalescing */ 401 if ((cvals->rx_coalesce_usecs == 0) || 402 (cvals->rx_max_coalesced_frames == 0)) { 403 for (i = 0; i < priv->num_rx_queues; i++) 404 priv->rx_queue[i]->rxcoalescing = 0; 405 } else { 406 for (i = 0; i < priv->num_rx_queues; i++) 407 priv->rx_queue[i]->rxcoalescing = 1; 408 } 409 410 for (i = 0; i < priv->num_rx_queues; i++) { 411 priv->rx_queue[i]->rxic = mk_ic_value( 412 cvals->rx_max_coalesced_frames, 413 gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs)); 414 } 415 416 /* Set up tx coalescing */ 417 if ((cvals->tx_coalesce_usecs == 0) || 418 (cvals->tx_max_coalesced_frames == 0)) { 419 for (i = 0; i < priv->num_tx_queues; i++) 420 priv->tx_queue[i]->txcoalescing = 0; 421 } else { 422 for (i = 0; i < priv->num_tx_queues; i++) 423 priv->tx_queue[i]->txcoalescing = 1; 424 } 425 426 for (i = 0; i < priv->num_tx_queues; i++) { 427 priv->tx_queue[i]->txic = mk_ic_value( 428 cvals->tx_max_coalesced_frames, 429 gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs)); 430 } 431 432 if (dev->flags & IFF_UP) { 433 stop_gfar(dev); 434 err = startup_gfar(dev); 435 } else { 436 gfar_mac_reset(priv); 437 } 438 439 clear_bit_unlock(GFAR_RESETTING, &priv->state); 440 441 return err; 442 } 443 444 /* Fills in rvals with the current ring parameters. Currently, 445 * rx, rx_mini, and rx_jumbo rings are the same size, as mini and 446 * jumbo are ignored by the driver */ 447 static void gfar_gringparam(struct net_device *dev, 448 struct ethtool_ringparam *rvals) 449 { 450 struct gfar_private *priv = netdev_priv(dev); 451 struct gfar_priv_tx_q *tx_queue = NULL; 452 struct gfar_priv_rx_q *rx_queue = NULL; 453 454 tx_queue = priv->tx_queue[0]; 455 rx_queue = priv->rx_queue[0]; 456 457 rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE; 458 rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE; 459 rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE; 460 rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE; 461 462 /* Values changeable by the user. The valid values are 463 * in the range 1 to the "*_max_pending" counterpart above. 464 */ 465 rvals->rx_pending = rx_queue->rx_ring_size; 466 rvals->rx_mini_pending = rx_queue->rx_ring_size; 467 rvals->rx_jumbo_pending = rx_queue->rx_ring_size; 468 rvals->tx_pending = tx_queue->tx_ring_size; 469 } 470 471 /* Change the current ring parameters, stopping the controller if 472 * necessary so that we don't mess things up while we're in motion. 473 */ 474 static int gfar_sringparam(struct net_device *dev, 475 struct ethtool_ringparam *rvals) 476 { 477 struct gfar_private *priv = netdev_priv(dev); 478 int err = 0, i; 479 480 if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE) 481 return -EINVAL; 482 483 if (!is_power_of_2(rvals->rx_pending)) { 484 netdev_err(dev, "Ring sizes must be a power of 2\n"); 485 return -EINVAL; 486 } 487 488 if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE) 489 return -EINVAL; 490 491 if (!is_power_of_2(rvals->tx_pending)) { 492 netdev_err(dev, "Ring sizes must be a power of 2\n"); 493 return -EINVAL; 494 } 495 496 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state)) 497 cpu_relax(); 498 499 if (dev->flags & IFF_UP) 500 stop_gfar(dev); 501 502 /* Change the sizes */ 503 for (i = 0; i < priv->num_rx_queues; i++) 504 priv->rx_queue[i]->rx_ring_size = rvals->rx_pending; 505 506 for (i = 0; i < priv->num_tx_queues; i++) 507 priv->tx_queue[i]->tx_ring_size = rvals->tx_pending; 508 509 /* Rebuild the rings with the new size */ 510 if (dev->flags & IFF_UP) 511 err = startup_gfar(dev); 512 513 clear_bit_unlock(GFAR_RESETTING, &priv->state); 514 515 return err; 516 } 517 518 static void gfar_gpauseparam(struct net_device *dev, 519 struct ethtool_pauseparam *epause) 520 { 521 struct gfar_private *priv = netdev_priv(dev); 522 523 epause->autoneg = !!priv->pause_aneg_en; 524 epause->rx_pause = !!priv->rx_pause_en; 525 epause->tx_pause = !!priv->tx_pause_en; 526 } 527 528 static int gfar_spauseparam(struct net_device *dev, 529 struct ethtool_pauseparam *epause) 530 { 531 struct gfar_private *priv = netdev_priv(dev); 532 struct phy_device *phydev = priv->phydev; 533 struct gfar __iomem *regs = priv->gfargrp[0].regs; 534 u32 oldadv, newadv; 535 536 if (!phydev) 537 return -ENODEV; 538 539 if (!(phydev->supported & SUPPORTED_Pause) || 540 (!(phydev->supported & SUPPORTED_Asym_Pause) && 541 (epause->rx_pause != epause->tx_pause))) 542 return -EINVAL; 543 544 priv->rx_pause_en = priv->tx_pause_en = 0; 545 if (epause->rx_pause) { 546 priv->rx_pause_en = 1; 547 548 if (epause->tx_pause) { 549 priv->tx_pause_en = 1; 550 /* FLOW_CTRL_RX & TX */ 551 newadv = ADVERTISED_Pause; 552 } else /* FLOW_CTLR_RX */ 553 newadv = ADVERTISED_Pause | ADVERTISED_Asym_Pause; 554 } else if (epause->tx_pause) { 555 priv->tx_pause_en = 1; 556 /* FLOW_CTLR_TX */ 557 newadv = ADVERTISED_Asym_Pause; 558 } else 559 newadv = 0; 560 561 if (epause->autoneg) 562 priv->pause_aneg_en = 1; 563 else 564 priv->pause_aneg_en = 0; 565 566 oldadv = phydev->advertising & 567 (ADVERTISED_Pause | ADVERTISED_Asym_Pause); 568 if (oldadv != newadv) { 569 phydev->advertising &= 570 ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause); 571 phydev->advertising |= newadv; 572 if (phydev->autoneg) 573 /* inform link partner of our 574 * new flow ctrl settings 575 */ 576 return phy_start_aneg(phydev); 577 578 if (!epause->autoneg) { 579 u32 tempval; 580 tempval = gfar_read(®s->maccfg1); 581 tempval &= ~(MACCFG1_TX_FLOW | MACCFG1_RX_FLOW); 582 583 priv->tx_actual_en = 0; 584 if (priv->tx_pause_en) { 585 priv->tx_actual_en = 1; 586 tempval |= MACCFG1_TX_FLOW; 587 } 588 589 if (priv->rx_pause_en) 590 tempval |= MACCFG1_RX_FLOW; 591 gfar_write(®s->maccfg1, tempval); 592 } 593 } 594 595 return 0; 596 } 597 598 int gfar_set_features(struct net_device *dev, netdev_features_t features) 599 { 600 netdev_features_t changed = dev->features ^ features; 601 struct gfar_private *priv = netdev_priv(dev); 602 int err = 0; 603 604 if (!(changed & (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | 605 NETIF_F_RXCSUM))) 606 return 0; 607 608 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state)) 609 cpu_relax(); 610 611 dev->features = features; 612 613 if (dev->flags & IFF_UP) { 614 /* Now we take down the rings to rebuild them */ 615 stop_gfar(dev); 616 err = startup_gfar(dev); 617 } else { 618 gfar_mac_reset(priv); 619 } 620 621 clear_bit_unlock(GFAR_RESETTING, &priv->state); 622 623 return err; 624 } 625 626 static uint32_t gfar_get_msglevel(struct net_device *dev) 627 { 628 struct gfar_private *priv = netdev_priv(dev); 629 630 return priv->msg_enable; 631 } 632 633 static void gfar_set_msglevel(struct net_device *dev, uint32_t data) 634 { 635 struct gfar_private *priv = netdev_priv(dev); 636 637 priv->msg_enable = data; 638 } 639 640 #ifdef CONFIG_PM 641 static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 642 { 643 struct gfar_private *priv = netdev_priv(dev); 644 645 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) { 646 wol->supported = WAKE_MAGIC; 647 wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0; 648 } else { 649 wol->supported = wol->wolopts = 0; 650 } 651 } 652 653 static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 654 { 655 struct gfar_private *priv = netdev_priv(dev); 656 657 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) && 658 wol->wolopts != 0) 659 return -EINVAL; 660 661 if (wol->wolopts & ~WAKE_MAGIC) 662 return -EINVAL; 663 664 device_set_wakeup_enable(&dev->dev, wol->wolopts & WAKE_MAGIC); 665 666 priv->wol_en = !!device_may_wakeup(&dev->dev); 667 668 return 0; 669 } 670 #endif 671 672 static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow) 673 { 674 u32 fcr = 0x0, fpr = FPR_FILER_MASK; 675 676 if (ethflow & RXH_L2DA) { 677 fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH | 678 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; 679 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 680 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 681 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 682 priv->cur_filer_idx = priv->cur_filer_idx - 1; 683 684 fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH | 685 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; 686 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 687 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 688 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 689 priv->cur_filer_idx = priv->cur_filer_idx - 1; 690 } 691 692 if (ethflow & RXH_VLAN) { 693 fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH | 694 RQFCR_AND | RQFCR_HASHTBL_0; 695 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 696 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 697 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 698 priv->cur_filer_idx = priv->cur_filer_idx - 1; 699 } 700 701 if (ethflow & RXH_IP_SRC) { 702 fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | 703 RQFCR_AND | RQFCR_HASHTBL_0; 704 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 705 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 706 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 707 priv->cur_filer_idx = priv->cur_filer_idx - 1; 708 } 709 710 if (ethflow & (RXH_IP_DST)) { 711 fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | 712 RQFCR_AND | RQFCR_HASHTBL_0; 713 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 714 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 715 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 716 priv->cur_filer_idx = priv->cur_filer_idx - 1; 717 } 718 719 if (ethflow & RXH_L3_PROTO) { 720 fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH | 721 RQFCR_AND | RQFCR_HASHTBL_0; 722 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 723 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 724 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 725 priv->cur_filer_idx = priv->cur_filer_idx - 1; 726 } 727 728 if (ethflow & RXH_L4_B_0_1) { 729 fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | 730 RQFCR_AND | RQFCR_HASHTBL_0; 731 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 732 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 733 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 734 priv->cur_filer_idx = priv->cur_filer_idx - 1; 735 } 736 737 if (ethflow & RXH_L4_B_2_3) { 738 fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | 739 RQFCR_AND | RQFCR_HASHTBL_0; 740 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 741 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 742 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 743 priv->cur_filer_idx = priv->cur_filer_idx - 1; 744 } 745 } 746 747 static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow, 748 u64 class) 749 { 750 unsigned int last_rule_idx = priv->cur_filer_idx; 751 unsigned int cmp_rqfpr; 752 unsigned int *local_rqfpr; 753 unsigned int *local_rqfcr; 754 int i = 0x0, k = 0x0; 755 int j = MAX_FILER_IDX, l = 0x0; 756 int ret = 1; 757 758 local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int), 759 GFP_KERNEL); 760 local_rqfcr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int), 761 GFP_KERNEL); 762 if (!local_rqfpr || !local_rqfcr) { 763 ret = 0; 764 goto err; 765 } 766 767 switch (class) { 768 case TCP_V4_FLOW: 769 cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP; 770 break; 771 case UDP_V4_FLOW: 772 cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP; 773 break; 774 case TCP_V6_FLOW: 775 cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP; 776 break; 777 case UDP_V6_FLOW: 778 cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP; 779 break; 780 default: 781 netdev_err(priv->ndev, 782 "Right now this class is not supported\n"); 783 ret = 0; 784 goto err; 785 } 786 787 for (i = 0; i < MAX_FILER_IDX + 1; i++) { 788 local_rqfpr[j] = priv->ftp_rqfpr[i]; 789 local_rqfcr[j] = priv->ftp_rqfcr[i]; 790 j--; 791 if ((priv->ftp_rqfcr[i] == 792 (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) && 793 (priv->ftp_rqfpr[i] == cmp_rqfpr)) 794 break; 795 } 796 797 if (i == MAX_FILER_IDX + 1) { 798 netdev_err(priv->ndev, 799 "No parse rule found, can't create hash rules\n"); 800 ret = 0; 801 goto err; 802 } 803 804 /* If a match was found, then it begins the starting of a cluster rule 805 * if it was already programmed, we need to overwrite these rules 806 */ 807 for (l = i+1; l < MAX_FILER_IDX; l++) { 808 if ((priv->ftp_rqfcr[l] & RQFCR_CLE) && 809 !(priv->ftp_rqfcr[l] & RQFCR_AND)) { 810 priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT | 811 RQFCR_HASHTBL_0 | RQFCR_PID_MASK; 812 priv->ftp_rqfpr[l] = FPR_FILER_MASK; 813 gfar_write_filer(priv, l, priv->ftp_rqfcr[l], 814 priv->ftp_rqfpr[l]); 815 break; 816 } 817 818 if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) && 819 (priv->ftp_rqfcr[l] & RQFCR_AND)) 820 continue; 821 else { 822 local_rqfpr[j] = priv->ftp_rqfpr[l]; 823 local_rqfcr[j] = priv->ftp_rqfcr[l]; 824 j--; 825 } 826 } 827 828 priv->cur_filer_idx = l - 1; 829 last_rule_idx = l; 830 831 /* hash rules */ 832 ethflow_to_filer_rules(priv, ethflow); 833 834 /* Write back the popped out rules again */ 835 for (k = j+1; k < MAX_FILER_IDX; k++) { 836 priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k]; 837 priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k]; 838 gfar_write_filer(priv, priv->cur_filer_idx, 839 local_rqfcr[k], local_rqfpr[k]); 840 if (!priv->cur_filer_idx) 841 break; 842 priv->cur_filer_idx = priv->cur_filer_idx - 1; 843 } 844 845 err: 846 kfree(local_rqfcr); 847 kfree(local_rqfpr); 848 return ret; 849 } 850 851 static int gfar_set_hash_opts(struct gfar_private *priv, 852 struct ethtool_rxnfc *cmd) 853 { 854 /* write the filer rules here */ 855 if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type)) 856 return -EINVAL; 857 858 return 0; 859 } 860 861 static int gfar_check_filer_hardware(struct gfar_private *priv) 862 { 863 struct gfar __iomem *regs = priv->gfargrp[0].regs; 864 u32 i; 865 866 /* Check if we are in FIFO mode */ 867 i = gfar_read(®s->ecntrl); 868 i &= ECNTRL_FIFM; 869 if (i == ECNTRL_FIFM) { 870 netdev_notice(priv->ndev, "Interface in FIFO mode\n"); 871 i = gfar_read(®s->rctrl); 872 i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM; 873 if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) { 874 netdev_info(priv->ndev, 875 "Receive Queue Filtering enabled\n"); 876 } else { 877 netdev_warn(priv->ndev, 878 "Receive Queue Filtering disabled\n"); 879 return -EOPNOTSUPP; 880 } 881 } 882 /* Or in standard mode */ 883 else { 884 i = gfar_read(®s->rctrl); 885 i &= RCTRL_PRSDEP_MASK; 886 if (i == RCTRL_PRSDEP_MASK) { 887 netdev_info(priv->ndev, 888 "Receive Queue Filtering enabled\n"); 889 } else { 890 netdev_warn(priv->ndev, 891 "Receive Queue Filtering disabled\n"); 892 return -EOPNOTSUPP; 893 } 894 } 895 896 /* Sets the properties for arbitrary filer rule 897 * to the first 4 Layer 4 Bytes 898 */ 899 gfar_write(®s->rbifx, 0xC0C1C2C3); 900 return 0; 901 } 902 903 /* Write a mask to filer cache */ 904 static void gfar_set_mask(u32 mask, struct filer_table *tab) 905 { 906 tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT; 907 tab->fe[tab->index].prop = mask; 908 tab->index++; 909 } 910 911 /* Sets parse bits (e.g. IP or TCP) */ 912 static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab) 913 { 914 gfar_set_mask(mask, tab); 915 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE | 916 RQFCR_AND; 917 tab->fe[tab->index].prop = value; 918 tab->index++; 919 } 920 921 static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag, 922 struct filer_table *tab) 923 { 924 gfar_set_mask(mask, tab); 925 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag; 926 tab->fe[tab->index].prop = value; 927 tab->index++; 928 } 929 930 /* For setting a tuple of value and mask of type flag 931 * Example: 932 * IP-Src = 10.0.0.0/255.0.0.0 933 * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4 934 * 935 * Ethtool gives us a value=0 and mask=~0 for don't care a tuple 936 * For a don't care mask it gives us a 0 937 * 938 * The check if don't care and the mask adjustment if mask=0 is done for VLAN 939 * and MAC stuff on an upper level (due to missing information on this level). 940 * For these guys we can discard them if they are value=0 and mask=0. 941 * 942 * Further the all masks are one-padded for better hardware efficiency. 943 */ 944 static void gfar_set_attribute(u32 value, u32 mask, u32 flag, 945 struct filer_table *tab) 946 { 947 switch (flag) { 948 /* 3bit */ 949 case RQFCR_PID_PRI: 950 if (!(value | mask)) 951 return; 952 mask |= RQFCR_PID_PRI_MASK; 953 break; 954 /* 8bit */ 955 case RQFCR_PID_L4P: 956 case RQFCR_PID_TOS: 957 if (!~(mask | RQFCR_PID_L4P_MASK)) 958 return; 959 if (!mask) 960 mask = ~0; 961 else 962 mask |= RQFCR_PID_L4P_MASK; 963 break; 964 /* 12bit */ 965 case RQFCR_PID_VID: 966 if (!(value | mask)) 967 return; 968 mask |= RQFCR_PID_VID_MASK; 969 break; 970 /* 16bit */ 971 case RQFCR_PID_DPT: 972 case RQFCR_PID_SPT: 973 case RQFCR_PID_ETY: 974 if (!~(mask | RQFCR_PID_PORT_MASK)) 975 return; 976 if (!mask) 977 mask = ~0; 978 else 979 mask |= RQFCR_PID_PORT_MASK; 980 break; 981 /* 24bit */ 982 case RQFCR_PID_DAH: 983 case RQFCR_PID_DAL: 984 case RQFCR_PID_SAH: 985 case RQFCR_PID_SAL: 986 if (!(value | mask)) 987 return; 988 mask |= RQFCR_PID_MAC_MASK; 989 break; 990 /* for all real 32bit masks */ 991 default: 992 if (!~mask) 993 return; 994 if (!mask) 995 mask = ~0; 996 break; 997 } 998 gfar_set_general_attribute(value, mask, flag, tab); 999 } 1000 1001 /* Translates value and mask for UDP, TCP or SCTP */ 1002 static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value, 1003 struct ethtool_tcpip4_spec *mask, 1004 struct filer_table *tab) 1005 { 1006 gfar_set_attribute(be32_to_cpu(value->ip4src), 1007 be32_to_cpu(mask->ip4src), 1008 RQFCR_PID_SIA, tab); 1009 gfar_set_attribute(be32_to_cpu(value->ip4dst), 1010 be32_to_cpu(mask->ip4dst), 1011 RQFCR_PID_DIA, tab); 1012 gfar_set_attribute(be16_to_cpu(value->pdst), 1013 be16_to_cpu(mask->pdst), 1014 RQFCR_PID_DPT, tab); 1015 gfar_set_attribute(be16_to_cpu(value->psrc), 1016 be16_to_cpu(mask->psrc), 1017 RQFCR_PID_SPT, tab); 1018 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab); 1019 } 1020 1021 /* Translates value and mask for RAW-IP4 */ 1022 static void gfar_set_user_ip(struct ethtool_usrip4_spec *value, 1023 struct ethtool_usrip4_spec *mask, 1024 struct filer_table *tab) 1025 { 1026 gfar_set_attribute(be32_to_cpu(value->ip4src), 1027 be32_to_cpu(mask->ip4src), 1028 RQFCR_PID_SIA, tab); 1029 gfar_set_attribute(be32_to_cpu(value->ip4dst), 1030 be32_to_cpu(mask->ip4dst), 1031 RQFCR_PID_DIA, tab); 1032 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab); 1033 gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab); 1034 gfar_set_attribute(be32_to_cpu(value->l4_4_bytes), 1035 be32_to_cpu(mask->l4_4_bytes), 1036 RQFCR_PID_ARB, tab); 1037 1038 } 1039 1040 /* Translates value and mask for ETHER spec */ 1041 static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask, 1042 struct filer_table *tab) 1043 { 1044 u32 upper_temp_mask = 0; 1045 u32 lower_temp_mask = 0; 1046 1047 /* Source address */ 1048 if (!is_broadcast_ether_addr(mask->h_source)) { 1049 if (is_zero_ether_addr(mask->h_source)) { 1050 upper_temp_mask = 0xFFFFFFFF; 1051 lower_temp_mask = 0xFFFFFFFF; 1052 } else { 1053 upper_temp_mask = mask->h_source[0] << 16 | 1054 mask->h_source[1] << 8 | 1055 mask->h_source[2]; 1056 lower_temp_mask = mask->h_source[3] << 16 | 1057 mask->h_source[4] << 8 | 1058 mask->h_source[5]; 1059 } 1060 /* Upper 24bit */ 1061 gfar_set_attribute(value->h_source[0] << 16 | 1062 value->h_source[1] << 8 | 1063 value->h_source[2], 1064 upper_temp_mask, RQFCR_PID_SAH, tab); 1065 /* And the same for the lower part */ 1066 gfar_set_attribute(value->h_source[3] << 16 | 1067 value->h_source[4] << 8 | 1068 value->h_source[5], 1069 lower_temp_mask, RQFCR_PID_SAL, tab); 1070 } 1071 /* Destination address */ 1072 if (!is_broadcast_ether_addr(mask->h_dest)) { 1073 /* Special for destination is limited broadcast */ 1074 if ((is_broadcast_ether_addr(value->h_dest) && 1075 is_zero_ether_addr(mask->h_dest))) { 1076 gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab); 1077 } else { 1078 if (is_zero_ether_addr(mask->h_dest)) { 1079 upper_temp_mask = 0xFFFFFFFF; 1080 lower_temp_mask = 0xFFFFFFFF; 1081 } else { 1082 upper_temp_mask = mask->h_dest[0] << 16 | 1083 mask->h_dest[1] << 8 | 1084 mask->h_dest[2]; 1085 lower_temp_mask = mask->h_dest[3] << 16 | 1086 mask->h_dest[4] << 8 | 1087 mask->h_dest[5]; 1088 } 1089 1090 /* Upper 24bit */ 1091 gfar_set_attribute(value->h_dest[0] << 16 | 1092 value->h_dest[1] << 8 | 1093 value->h_dest[2], 1094 upper_temp_mask, RQFCR_PID_DAH, tab); 1095 /* And the same for the lower part */ 1096 gfar_set_attribute(value->h_dest[3] << 16 | 1097 value->h_dest[4] << 8 | 1098 value->h_dest[5], 1099 lower_temp_mask, RQFCR_PID_DAL, tab); 1100 } 1101 } 1102 1103 gfar_set_attribute(be16_to_cpu(value->h_proto), 1104 be16_to_cpu(mask->h_proto), 1105 RQFCR_PID_ETY, tab); 1106 } 1107 1108 static inline u32 vlan_tci_vid(struct ethtool_rx_flow_spec *rule) 1109 { 1110 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_VID_MASK; 1111 } 1112 1113 static inline u32 vlan_tci_vidm(struct ethtool_rx_flow_spec *rule) 1114 { 1115 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_VID_MASK; 1116 } 1117 1118 static inline u32 vlan_tci_cfi(struct ethtool_rx_flow_spec *rule) 1119 { 1120 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_CFI_MASK; 1121 } 1122 1123 static inline u32 vlan_tci_cfim(struct ethtool_rx_flow_spec *rule) 1124 { 1125 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_CFI_MASK; 1126 } 1127 1128 static inline u32 vlan_tci_prio(struct ethtool_rx_flow_spec *rule) 1129 { 1130 return (be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_PRIO_MASK) >> 1131 VLAN_PRIO_SHIFT; 1132 } 1133 1134 static inline u32 vlan_tci_priom(struct ethtool_rx_flow_spec *rule) 1135 { 1136 return (be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_PRIO_MASK) >> 1137 VLAN_PRIO_SHIFT; 1138 } 1139 1140 /* Convert a rule to binary filter format of gianfar */ 1141 static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule, 1142 struct filer_table *tab) 1143 { 1144 u32 vlan = 0, vlan_mask = 0; 1145 u32 id = 0, id_mask = 0; 1146 u32 cfi = 0, cfi_mask = 0; 1147 u32 prio = 0, prio_mask = 0; 1148 u32 old_index = tab->index; 1149 1150 /* Check if vlan is wanted */ 1151 if ((rule->flow_type & FLOW_EXT) && 1152 (rule->m_ext.vlan_tci != cpu_to_be16(0xFFFF))) { 1153 if (!rule->m_ext.vlan_tci) 1154 rule->m_ext.vlan_tci = cpu_to_be16(0xFFFF); 1155 1156 vlan = RQFPR_VLN; 1157 vlan_mask = RQFPR_VLN; 1158 1159 /* Separate the fields */ 1160 id = vlan_tci_vid(rule); 1161 id_mask = vlan_tci_vidm(rule); 1162 cfi = vlan_tci_cfi(rule); 1163 cfi_mask = vlan_tci_cfim(rule); 1164 prio = vlan_tci_prio(rule); 1165 prio_mask = vlan_tci_priom(rule); 1166 1167 if (cfi == VLAN_TAG_PRESENT && cfi_mask == VLAN_TAG_PRESENT) { 1168 vlan |= RQFPR_CFI; 1169 vlan_mask |= RQFPR_CFI; 1170 } else if (cfi != VLAN_TAG_PRESENT && 1171 cfi_mask == VLAN_TAG_PRESENT) { 1172 vlan_mask |= RQFPR_CFI; 1173 } 1174 } 1175 1176 switch (rule->flow_type & ~FLOW_EXT) { 1177 case TCP_V4_FLOW: 1178 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan, 1179 RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab); 1180 gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec, 1181 &rule->m_u.tcp_ip4_spec, tab); 1182 break; 1183 case UDP_V4_FLOW: 1184 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan, 1185 RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab); 1186 gfar_set_basic_ip(&rule->h_u.udp_ip4_spec, 1187 &rule->m_u.udp_ip4_spec, tab); 1188 break; 1189 case SCTP_V4_FLOW: 1190 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask, 1191 tab); 1192 gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab); 1193 gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u, 1194 (struct ethtool_tcpip4_spec *)&rule->m_u, 1195 tab); 1196 break; 1197 case IP_USER_FLOW: 1198 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask, 1199 tab); 1200 gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u, 1201 (struct ethtool_usrip4_spec *) &rule->m_u, 1202 tab); 1203 break; 1204 case ETHER_FLOW: 1205 if (vlan) 1206 gfar_set_parse_bits(vlan, vlan_mask, tab); 1207 gfar_set_ether((struct ethhdr *) &rule->h_u, 1208 (struct ethhdr *) &rule->m_u, tab); 1209 break; 1210 default: 1211 return -1; 1212 } 1213 1214 /* Set the vlan attributes in the end */ 1215 if (vlan) { 1216 gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab); 1217 gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab); 1218 } 1219 1220 /* If there has been nothing written till now, it must be a default */ 1221 if (tab->index == old_index) { 1222 gfar_set_mask(0xFFFFFFFF, tab); 1223 tab->fe[tab->index].ctrl = 0x20; 1224 tab->fe[tab->index].prop = 0x0; 1225 tab->index++; 1226 } 1227 1228 /* Remove last AND */ 1229 tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND); 1230 1231 /* Specify which queue to use or to drop */ 1232 if (rule->ring_cookie == RX_CLS_FLOW_DISC) 1233 tab->fe[tab->index - 1].ctrl |= RQFCR_RJE; 1234 else 1235 tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10); 1236 1237 /* Only big enough entries can be clustered */ 1238 if (tab->index > (old_index + 2)) { 1239 tab->fe[old_index + 1].ctrl |= RQFCR_CLE; 1240 tab->fe[tab->index - 1].ctrl |= RQFCR_CLE; 1241 } 1242 1243 /* In rare cases the cache can be full while there is 1244 * free space in hw 1245 */ 1246 if (tab->index > MAX_FILER_CACHE_IDX - 1) 1247 return -EBUSY; 1248 1249 return 0; 1250 } 1251 1252 /* Write the bit-pattern from software's buffer to hardware registers */ 1253 static int gfar_write_filer_table(struct gfar_private *priv, 1254 struct filer_table *tab) 1255 { 1256 u32 i = 0; 1257 if (tab->index > MAX_FILER_IDX - 1) 1258 return -EBUSY; 1259 1260 /* Fill regular entries */ 1261 for (; i < MAX_FILER_IDX && (tab->fe[i].ctrl | tab->fe[i].prop); i++) 1262 gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop); 1263 /* Fill the rest with fall-troughs */ 1264 for (; i < MAX_FILER_IDX; i++) 1265 gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF); 1266 /* Last entry must be default accept 1267 * because that's what people expect 1268 */ 1269 gfar_write_filer(priv, i, 0x20, 0x0); 1270 1271 return 0; 1272 } 1273 1274 static int gfar_check_capability(struct ethtool_rx_flow_spec *flow, 1275 struct gfar_private *priv) 1276 { 1277 1278 if (flow->flow_type & FLOW_EXT) { 1279 if (~flow->m_ext.data[0] || ~flow->m_ext.data[1]) 1280 netdev_warn(priv->ndev, 1281 "User-specific data not supported!\n"); 1282 if (~flow->m_ext.vlan_etype) 1283 netdev_warn(priv->ndev, 1284 "VLAN-etype not supported!\n"); 1285 } 1286 if (flow->flow_type == IP_USER_FLOW) 1287 if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4) 1288 netdev_warn(priv->ndev, 1289 "IP-Version differing from IPv4 not supported!\n"); 1290 1291 return 0; 1292 } 1293 1294 static int gfar_process_filer_changes(struct gfar_private *priv) 1295 { 1296 struct ethtool_flow_spec_container *j; 1297 struct filer_table *tab; 1298 s32 ret = 0; 1299 1300 /* So index is set to zero, too! */ 1301 tab = kzalloc(sizeof(*tab), GFP_KERNEL); 1302 if (tab == NULL) 1303 return -ENOMEM; 1304 1305 /* Now convert the existing filer data from flow_spec into 1306 * filer tables binary format 1307 */ 1308 list_for_each_entry(j, &priv->rx_list.list, list) { 1309 ret = gfar_convert_to_filer(&j->fs, tab); 1310 if (ret == -EBUSY) { 1311 netdev_err(priv->ndev, 1312 "Rule not added: No free space!\n"); 1313 goto end; 1314 } 1315 if (ret == -1) { 1316 netdev_err(priv->ndev, 1317 "Rule not added: Unsupported Flow-type!\n"); 1318 goto end; 1319 } 1320 } 1321 1322 /* Write everything to hardware */ 1323 ret = gfar_write_filer_table(priv, tab); 1324 if (ret == -EBUSY) { 1325 netdev_err(priv->ndev, "Rule not added: No free space!\n"); 1326 goto end; 1327 } 1328 1329 end: 1330 kfree(tab); 1331 return ret; 1332 } 1333 1334 static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow) 1335 { 1336 u32 i = 0; 1337 1338 for (i = 0; i < sizeof(flow->m_u); i++) 1339 flow->m_u.hdata[i] ^= 0xFF; 1340 1341 flow->m_ext.vlan_etype ^= cpu_to_be16(0xFFFF); 1342 flow->m_ext.vlan_tci ^= cpu_to_be16(0xFFFF); 1343 flow->m_ext.data[0] ^= cpu_to_be32(~0); 1344 flow->m_ext.data[1] ^= cpu_to_be32(~0); 1345 } 1346 1347 static int gfar_add_cls(struct gfar_private *priv, 1348 struct ethtool_rx_flow_spec *flow) 1349 { 1350 struct ethtool_flow_spec_container *temp, *comp; 1351 int ret = 0; 1352 1353 temp = kmalloc(sizeof(*temp), GFP_KERNEL); 1354 if (temp == NULL) 1355 return -ENOMEM; 1356 memcpy(&temp->fs, flow, sizeof(temp->fs)); 1357 1358 gfar_invert_masks(&temp->fs); 1359 ret = gfar_check_capability(&temp->fs, priv); 1360 if (ret) 1361 goto clean_mem; 1362 /* Link in the new element at the right @location */ 1363 if (list_empty(&priv->rx_list.list)) { 1364 ret = gfar_check_filer_hardware(priv); 1365 if (ret != 0) 1366 goto clean_mem; 1367 list_add(&temp->list, &priv->rx_list.list); 1368 goto process; 1369 } else { 1370 list_for_each_entry(comp, &priv->rx_list.list, list) { 1371 if (comp->fs.location > flow->location) { 1372 list_add_tail(&temp->list, &comp->list); 1373 goto process; 1374 } 1375 if (comp->fs.location == flow->location) { 1376 netdev_err(priv->ndev, 1377 "Rule not added: ID %d not free!\n", 1378 flow->location); 1379 ret = -EBUSY; 1380 goto clean_mem; 1381 } 1382 } 1383 list_add_tail(&temp->list, &priv->rx_list.list); 1384 } 1385 1386 process: 1387 priv->rx_list.count++; 1388 ret = gfar_process_filer_changes(priv); 1389 if (ret) 1390 goto clean_list; 1391 return ret; 1392 1393 clean_list: 1394 priv->rx_list.count--; 1395 list_del(&temp->list); 1396 clean_mem: 1397 kfree(temp); 1398 return ret; 1399 } 1400 1401 static int gfar_del_cls(struct gfar_private *priv, u32 loc) 1402 { 1403 struct ethtool_flow_spec_container *comp; 1404 u32 ret = -EINVAL; 1405 1406 if (list_empty(&priv->rx_list.list)) 1407 return ret; 1408 1409 list_for_each_entry(comp, &priv->rx_list.list, list) { 1410 if (comp->fs.location == loc) { 1411 list_del(&comp->list); 1412 kfree(comp); 1413 priv->rx_list.count--; 1414 gfar_process_filer_changes(priv); 1415 ret = 0; 1416 break; 1417 } 1418 } 1419 1420 return ret; 1421 } 1422 1423 static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd) 1424 { 1425 struct ethtool_flow_spec_container *comp; 1426 u32 ret = -EINVAL; 1427 1428 list_for_each_entry(comp, &priv->rx_list.list, list) { 1429 if (comp->fs.location == cmd->fs.location) { 1430 memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs)); 1431 gfar_invert_masks(&cmd->fs); 1432 ret = 0; 1433 break; 1434 } 1435 } 1436 1437 return ret; 1438 } 1439 1440 static int gfar_get_cls_all(struct gfar_private *priv, 1441 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1442 { 1443 struct ethtool_flow_spec_container *comp; 1444 u32 i = 0; 1445 1446 list_for_each_entry(comp, &priv->rx_list.list, list) { 1447 if (i == cmd->rule_cnt) 1448 return -EMSGSIZE; 1449 rule_locs[i] = comp->fs.location; 1450 i++; 1451 } 1452 1453 cmd->data = MAX_FILER_IDX; 1454 cmd->rule_cnt = i; 1455 1456 return 0; 1457 } 1458 1459 static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd) 1460 { 1461 struct gfar_private *priv = netdev_priv(dev); 1462 int ret = 0; 1463 1464 if (test_bit(GFAR_RESETTING, &priv->state)) 1465 return -EBUSY; 1466 1467 mutex_lock(&priv->rx_queue_access); 1468 1469 switch (cmd->cmd) { 1470 case ETHTOOL_SRXFH: 1471 ret = gfar_set_hash_opts(priv, cmd); 1472 break; 1473 case ETHTOOL_SRXCLSRLINS: 1474 if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC && 1475 cmd->fs.ring_cookie >= priv->num_rx_queues) || 1476 cmd->fs.location >= MAX_FILER_IDX) { 1477 ret = -EINVAL; 1478 break; 1479 } 1480 ret = gfar_add_cls(priv, &cmd->fs); 1481 break; 1482 case ETHTOOL_SRXCLSRLDEL: 1483 ret = gfar_del_cls(priv, cmd->fs.location); 1484 break; 1485 default: 1486 ret = -EINVAL; 1487 } 1488 1489 mutex_unlock(&priv->rx_queue_access); 1490 1491 return ret; 1492 } 1493 1494 static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd, 1495 u32 *rule_locs) 1496 { 1497 struct gfar_private *priv = netdev_priv(dev); 1498 int ret = 0; 1499 1500 switch (cmd->cmd) { 1501 case ETHTOOL_GRXRINGS: 1502 cmd->data = priv->num_rx_queues; 1503 break; 1504 case ETHTOOL_GRXCLSRLCNT: 1505 cmd->rule_cnt = priv->rx_list.count; 1506 break; 1507 case ETHTOOL_GRXCLSRULE: 1508 ret = gfar_get_cls(priv, cmd); 1509 break; 1510 case ETHTOOL_GRXCLSRLALL: 1511 ret = gfar_get_cls_all(priv, cmd, rule_locs); 1512 break; 1513 default: 1514 ret = -EINVAL; 1515 break; 1516 } 1517 1518 return ret; 1519 } 1520 1521 int gfar_phc_index = -1; 1522 EXPORT_SYMBOL(gfar_phc_index); 1523 1524 static int gfar_get_ts_info(struct net_device *dev, 1525 struct ethtool_ts_info *info) 1526 { 1527 struct gfar_private *priv = netdev_priv(dev); 1528 1529 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) { 1530 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE | 1531 SOF_TIMESTAMPING_SOFTWARE; 1532 info->phc_index = -1; 1533 return 0; 1534 } 1535 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE | 1536 SOF_TIMESTAMPING_RX_HARDWARE | 1537 SOF_TIMESTAMPING_RAW_HARDWARE; 1538 info->phc_index = gfar_phc_index; 1539 info->tx_types = (1 << HWTSTAMP_TX_OFF) | 1540 (1 << HWTSTAMP_TX_ON); 1541 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | 1542 (1 << HWTSTAMP_FILTER_ALL); 1543 return 0; 1544 } 1545 1546 const struct ethtool_ops gfar_ethtool_ops = { 1547 .get_settings = gfar_gsettings, 1548 .set_settings = gfar_ssettings, 1549 .get_drvinfo = gfar_gdrvinfo, 1550 .get_regs_len = gfar_reglen, 1551 .get_regs = gfar_get_regs, 1552 .get_link = ethtool_op_get_link, 1553 .get_coalesce = gfar_gcoalesce, 1554 .set_coalesce = gfar_scoalesce, 1555 .get_ringparam = gfar_gringparam, 1556 .set_ringparam = gfar_sringparam, 1557 .get_pauseparam = gfar_gpauseparam, 1558 .set_pauseparam = gfar_spauseparam, 1559 .get_strings = gfar_gstrings, 1560 .get_sset_count = gfar_sset_count, 1561 .get_ethtool_stats = gfar_fill_stats, 1562 .get_msglevel = gfar_get_msglevel, 1563 .set_msglevel = gfar_set_msglevel, 1564 #ifdef CONFIG_PM 1565 .get_wol = gfar_get_wol, 1566 .set_wol = gfar_set_wol, 1567 #endif 1568 .set_rxnfc = gfar_set_nfc, 1569 .get_rxnfc = gfar_get_nfc, 1570 .get_ts_info = gfar_get_ts_info, 1571 }; 1572