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 /* extra stats */ 65 "rx-allocation-errors", 66 "rx-large-frame-errors", 67 "rx-short-frame-errors", 68 "rx-non-octet-errors", 69 "rx-crc-errors", 70 "rx-overrun-errors", 71 "rx-busy-errors", 72 "rx-babbling-errors", 73 "rx-truncated-frames", 74 "ethernet-bus-error", 75 "tx-babbling-errors", 76 "tx-underrun-errors", 77 "tx-timeout-errors", 78 /* rmon stats */ 79 "tx-rx-64-frames", 80 "tx-rx-65-127-frames", 81 "tx-rx-128-255-frames", 82 "tx-rx-256-511-frames", 83 "tx-rx-512-1023-frames", 84 "tx-rx-1024-1518-frames", 85 "tx-rx-1519-1522-good-vlan", 86 "rx-bytes", 87 "rx-packets", 88 "rx-fcs-errors", 89 "receive-multicast-packet", 90 "receive-broadcast-packet", 91 "rx-control-frame-packets", 92 "rx-pause-frame-packets", 93 "rx-unknown-op-code", 94 "rx-alignment-error", 95 "rx-frame-length-error", 96 "rx-code-error", 97 "rx-carrier-sense-error", 98 "rx-undersize-packets", 99 "rx-oversize-packets", 100 "rx-fragmented-frames", 101 "rx-jabber-frames", 102 "rx-dropped-frames", 103 "tx-byte-counter", 104 "tx-packets", 105 "tx-multicast-packets", 106 "tx-broadcast-packets", 107 "tx-pause-control-frames", 108 "tx-deferral-packets", 109 "tx-excessive-deferral-packets", 110 "tx-single-collision-packets", 111 "tx-multiple-collision-packets", 112 "tx-late-collision-packets", 113 "tx-excessive-collision-packets", 114 "tx-total-collision", 115 "reserved", 116 "tx-dropped-frames", 117 "tx-jabber-frames", 118 "tx-fcs-errors", 119 "tx-control-frames", 120 "tx-oversize-frames", 121 "tx-undersize-frames", 122 "tx-fragmented-frames", 123 }; 124 125 /* Fill in a buffer with the strings which correspond to the 126 * stats */ 127 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf) 128 { 129 struct gfar_private *priv = netdev_priv(dev); 130 131 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) 132 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN); 133 else 134 memcpy(buf, stat_gstrings, 135 GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN); 136 } 137 138 /* Fill in an array of 64-bit statistics from various sources. 139 * This array will be appended to the end of the ethtool_stats 140 * structure, and returned to user space 141 */ 142 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, 143 u64 *buf) 144 { 145 int i; 146 struct gfar_private *priv = netdev_priv(dev); 147 struct gfar __iomem *regs = priv->gfargrp[0].regs; 148 atomic64_t *extra = (atomic64_t *)&priv->extra_stats; 149 150 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++) 151 buf[i] = atomic64_read(&extra[i]); 152 153 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) { 154 u32 __iomem *rmon = (u32 __iomem *) ®s->rmon; 155 156 for (; i < GFAR_STATS_LEN; i++, rmon++) 157 buf[i] = (u64) gfar_read(rmon); 158 } 159 } 160 161 static int gfar_sset_count(struct net_device *dev, int sset) 162 { 163 struct gfar_private *priv = netdev_priv(dev); 164 165 switch (sset) { 166 case ETH_SS_STATS: 167 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) 168 return GFAR_STATS_LEN; 169 else 170 return GFAR_EXTRA_STATS_LEN; 171 default: 172 return -EOPNOTSUPP; 173 } 174 } 175 176 /* Fills in the drvinfo structure with some basic info */ 177 static void gfar_gdrvinfo(struct net_device *dev, 178 struct ethtool_drvinfo *drvinfo) 179 { 180 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 181 strlcpy(drvinfo->version, gfar_driver_version, 182 sizeof(drvinfo->version)); 183 strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); 184 strlcpy(drvinfo->bus_info, "N/A", sizeof(drvinfo->bus_info)); 185 drvinfo->regdump_len = 0; 186 drvinfo->eedump_len = 0; 187 } 188 189 190 static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd) 191 { 192 struct gfar_private *priv = netdev_priv(dev); 193 struct phy_device *phydev = priv->phydev; 194 195 if (NULL == phydev) 196 return -ENODEV; 197 198 return phy_ethtool_sset(phydev, cmd); 199 } 200 201 202 /* Return the current settings in the ethtool_cmd structure */ 203 static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd) 204 { 205 struct gfar_private *priv = netdev_priv(dev); 206 struct phy_device *phydev = priv->phydev; 207 struct gfar_priv_rx_q *rx_queue = NULL; 208 struct gfar_priv_tx_q *tx_queue = NULL; 209 210 if (NULL == phydev) 211 return -ENODEV; 212 tx_queue = priv->tx_queue[0]; 213 rx_queue = priv->rx_queue[0]; 214 215 /* etsec-1.7 and older versions have only one txic 216 * and rxic regs although they support multiple queues */ 217 cmd->maxtxpkt = get_icft_value(tx_queue->txic); 218 cmd->maxrxpkt = get_icft_value(rx_queue->rxic); 219 220 return phy_ethtool_gset(phydev, cmd); 221 } 222 223 /* Return the length of the register structure */ 224 static int gfar_reglen(struct net_device *dev) 225 { 226 return sizeof (struct gfar); 227 } 228 229 /* Return a dump of the GFAR register space */ 230 static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, 231 void *regbuf) 232 { 233 int i; 234 struct gfar_private *priv = netdev_priv(dev); 235 u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs; 236 u32 *buf = (u32 *) regbuf; 237 238 for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++) 239 buf[i] = gfar_read(&theregs[i]); 240 } 241 242 /* Convert microseconds to ethernet clock ticks, which changes 243 * depending on what speed the controller is running at */ 244 static unsigned int gfar_usecs2ticks(struct gfar_private *priv, 245 unsigned int usecs) 246 { 247 unsigned int count; 248 249 /* The timer is different, depending on the interface speed */ 250 switch (priv->phydev->speed) { 251 case SPEED_1000: 252 count = GFAR_GBIT_TIME; 253 break; 254 case SPEED_100: 255 count = GFAR_100_TIME; 256 break; 257 case SPEED_10: 258 default: 259 count = GFAR_10_TIME; 260 break; 261 } 262 263 /* Make sure we return a number greater than 0 264 * if usecs > 0 */ 265 return (usecs * 1000 + count - 1) / count; 266 } 267 268 /* Convert ethernet clock ticks to microseconds */ 269 static unsigned int gfar_ticks2usecs(struct gfar_private *priv, 270 unsigned int ticks) 271 { 272 unsigned int count; 273 274 /* The timer is different, depending on the interface speed */ 275 switch (priv->phydev->speed) { 276 case SPEED_1000: 277 count = GFAR_GBIT_TIME; 278 break; 279 case SPEED_100: 280 count = GFAR_100_TIME; 281 break; 282 case SPEED_10: 283 default: 284 count = GFAR_10_TIME; 285 break; 286 } 287 288 /* Make sure we return a number greater than 0 */ 289 /* if ticks is > 0 */ 290 return (ticks * count) / 1000; 291 } 292 293 /* Get the coalescing parameters, and put them in the cvals 294 * structure. */ 295 static int gfar_gcoalesce(struct net_device *dev, 296 struct ethtool_coalesce *cvals) 297 { 298 struct gfar_private *priv = netdev_priv(dev); 299 struct gfar_priv_rx_q *rx_queue = NULL; 300 struct gfar_priv_tx_q *tx_queue = NULL; 301 unsigned long rxtime; 302 unsigned long rxcount; 303 unsigned long txtime; 304 unsigned long txcount; 305 306 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) 307 return -EOPNOTSUPP; 308 309 if (NULL == priv->phydev) 310 return -ENODEV; 311 312 rx_queue = priv->rx_queue[0]; 313 tx_queue = priv->tx_queue[0]; 314 315 rxtime = get_ictt_value(rx_queue->rxic); 316 rxcount = get_icft_value(rx_queue->rxic); 317 txtime = get_ictt_value(tx_queue->txic); 318 txcount = get_icft_value(tx_queue->txic); 319 cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime); 320 cvals->rx_max_coalesced_frames = rxcount; 321 322 cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime); 323 cvals->tx_max_coalesced_frames = txcount; 324 325 cvals->use_adaptive_rx_coalesce = 0; 326 cvals->use_adaptive_tx_coalesce = 0; 327 328 cvals->pkt_rate_low = 0; 329 cvals->rx_coalesce_usecs_low = 0; 330 cvals->rx_max_coalesced_frames_low = 0; 331 cvals->tx_coalesce_usecs_low = 0; 332 cvals->tx_max_coalesced_frames_low = 0; 333 334 /* When the packet rate is below pkt_rate_high but above 335 * pkt_rate_low (both measured in packets per second) the 336 * normal {rx,tx}_* coalescing parameters are used. 337 */ 338 339 /* When the packet rate is (measured in packets per second) 340 * is above pkt_rate_high, the {rx,tx}_*_high parameters are 341 * used. 342 */ 343 cvals->pkt_rate_high = 0; 344 cvals->rx_coalesce_usecs_high = 0; 345 cvals->rx_max_coalesced_frames_high = 0; 346 cvals->tx_coalesce_usecs_high = 0; 347 cvals->tx_max_coalesced_frames_high = 0; 348 349 /* How often to do adaptive coalescing packet rate sampling, 350 * measured in seconds. Must not be zero. 351 */ 352 cvals->rate_sample_interval = 0; 353 354 return 0; 355 } 356 357 /* Change the coalescing values. 358 * Both cvals->*_usecs and cvals->*_frames have to be > 0 359 * in order for coalescing to be active 360 */ 361 static int gfar_scoalesce(struct net_device *dev, 362 struct ethtool_coalesce *cvals) 363 { 364 struct gfar_private *priv = netdev_priv(dev); 365 int i, err = 0; 366 367 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) 368 return -EOPNOTSUPP; 369 370 if (NULL == priv->phydev) 371 return -ENODEV; 372 373 /* Check the bounds of the values */ 374 if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) { 375 netdev_info(dev, "Coalescing is limited to %d microseconds\n", 376 GFAR_MAX_COAL_USECS); 377 return -EINVAL; 378 } 379 380 if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { 381 netdev_info(dev, "Coalescing is limited to %d frames\n", 382 GFAR_MAX_COAL_FRAMES); 383 return -EINVAL; 384 } 385 386 /* Check the bounds of the values */ 387 if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) { 388 netdev_info(dev, "Coalescing is limited to %d microseconds\n", 389 GFAR_MAX_COAL_USECS); 390 return -EINVAL; 391 } 392 393 if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { 394 netdev_info(dev, "Coalescing is limited to %d frames\n", 395 GFAR_MAX_COAL_FRAMES); 396 return -EINVAL; 397 } 398 399 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state)) 400 cpu_relax(); 401 402 /* Set up rx coalescing */ 403 if ((cvals->rx_coalesce_usecs == 0) || 404 (cvals->rx_max_coalesced_frames == 0)) { 405 for (i = 0; i < priv->num_rx_queues; i++) 406 priv->rx_queue[i]->rxcoalescing = 0; 407 } else { 408 for (i = 0; i < priv->num_rx_queues; i++) 409 priv->rx_queue[i]->rxcoalescing = 1; 410 } 411 412 for (i = 0; i < priv->num_rx_queues; i++) { 413 priv->rx_queue[i]->rxic = mk_ic_value( 414 cvals->rx_max_coalesced_frames, 415 gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs)); 416 } 417 418 /* Set up tx coalescing */ 419 if ((cvals->tx_coalesce_usecs == 0) || 420 (cvals->tx_max_coalesced_frames == 0)) { 421 for (i = 0; i < priv->num_tx_queues; i++) 422 priv->tx_queue[i]->txcoalescing = 0; 423 } else { 424 for (i = 0; i < priv->num_tx_queues; i++) 425 priv->tx_queue[i]->txcoalescing = 1; 426 } 427 428 for (i = 0; i < priv->num_tx_queues; i++) { 429 priv->tx_queue[i]->txic = mk_ic_value( 430 cvals->tx_max_coalesced_frames, 431 gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs)); 432 } 433 434 if (dev->flags & IFF_UP) { 435 stop_gfar(dev); 436 err = startup_gfar(dev); 437 } else { 438 gfar_mac_reset(priv); 439 } 440 441 clear_bit_unlock(GFAR_RESETTING, &priv->state); 442 443 return err; 444 } 445 446 /* Fills in rvals with the current ring parameters. Currently, 447 * rx, rx_mini, and rx_jumbo rings are the same size, as mini and 448 * jumbo are ignored by the driver */ 449 static void gfar_gringparam(struct net_device *dev, 450 struct ethtool_ringparam *rvals) 451 { 452 struct gfar_private *priv = netdev_priv(dev); 453 struct gfar_priv_tx_q *tx_queue = NULL; 454 struct gfar_priv_rx_q *rx_queue = NULL; 455 456 tx_queue = priv->tx_queue[0]; 457 rx_queue = priv->rx_queue[0]; 458 459 rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE; 460 rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE; 461 rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE; 462 rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE; 463 464 /* Values changeable by the user. The valid values are 465 * in the range 1 to the "*_max_pending" counterpart above. 466 */ 467 rvals->rx_pending = rx_queue->rx_ring_size; 468 rvals->rx_mini_pending = rx_queue->rx_ring_size; 469 rvals->rx_jumbo_pending = rx_queue->rx_ring_size; 470 rvals->tx_pending = tx_queue->tx_ring_size; 471 } 472 473 /* Change the current ring parameters, stopping the controller if 474 * necessary so that we don't mess things up while we're in motion. 475 */ 476 static int gfar_sringparam(struct net_device *dev, 477 struct ethtool_ringparam *rvals) 478 { 479 struct gfar_private *priv = netdev_priv(dev); 480 int err = 0, i; 481 482 if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE) 483 return -EINVAL; 484 485 if (!is_power_of_2(rvals->rx_pending)) { 486 netdev_err(dev, "Ring sizes must be a power of 2\n"); 487 return -EINVAL; 488 } 489 490 if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE) 491 return -EINVAL; 492 493 if (!is_power_of_2(rvals->tx_pending)) { 494 netdev_err(dev, "Ring sizes must be a power of 2\n"); 495 return -EINVAL; 496 } 497 498 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state)) 499 cpu_relax(); 500 501 if (dev->flags & IFF_UP) 502 stop_gfar(dev); 503 504 /* Change the sizes */ 505 for (i = 0; i < priv->num_rx_queues; i++) 506 priv->rx_queue[i]->rx_ring_size = rvals->rx_pending; 507 508 for (i = 0; i < priv->num_tx_queues; i++) 509 priv->tx_queue[i]->tx_ring_size = rvals->tx_pending; 510 511 /* Rebuild the rings with the new size */ 512 if (dev->flags & IFF_UP) 513 err = startup_gfar(dev); 514 515 clear_bit_unlock(GFAR_RESETTING, &priv->state); 516 517 return err; 518 } 519 520 static void gfar_gpauseparam(struct net_device *dev, 521 struct ethtool_pauseparam *epause) 522 { 523 struct gfar_private *priv = netdev_priv(dev); 524 525 epause->autoneg = !!priv->pause_aneg_en; 526 epause->rx_pause = !!priv->rx_pause_en; 527 epause->tx_pause = !!priv->tx_pause_en; 528 } 529 530 static int gfar_spauseparam(struct net_device *dev, 531 struct ethtool_pauseparam *epause) 532 { 533 struct gfar_private *priv = netdev_priv(dev); 534 struct phy_device *phydev = priv->phydev; 535 struct gfar __iomem *regs = priv->gfargrp[0].regs; 536 u32 oldadv, newadv; 537 538 if (!phydev) 539 return -ENODEV; 540 541 if (!(phydev->supported & SUPPORTED_Pause) || 542 (!(phydev->supported & SUPPORTED_Asym_Pause) && 543 (epause->rx_pause != epause->tx_pause))) 544 return -EINVAL; 545 546 priv->rx_pause_en = priv->tx_pause_en = 0; 547 if (epause->rx_pause) { 548 priv->rx_pause_en = 1; 549 550 if (epause->tx_pause) { 551 priv->tx_pause_en = 1; 552 /* FLOW_CTRL_RX & TX */ 553 newadv = ADVERTISED_Pause; 554 } else /* FLOW_CTLR_RX */ 555 newadv = ADVERTISED_Pause | ADVERTISED_Asym_Pause; 556 } else if (epause->tx_pause) { 557 priv->tx_pause_en = 1; 558 /* FLOW_CTLR_TX */ 559 newadv = ADVERTISED_Asym_Pause; 560 } else 561 newadv = 0; 562 563 if (epause->autoneg) 564 priv->pause_aneg_en = 1; 565 else 566 priv->pause_aneg_en = 0; 567 568 oldadv = phydev->advertising & 569 (ADVERTISED_Pause | ADVERTISED_Asym_Pause); 570 if (oldadv != newadv) { 571 phydev->advertising &= 572 ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause); 573 phydev->advertising |= newadv; 574 if (phydev->autoneg) 575 /* inform link partner of our 576 * new flow ctrl settings 577 */ 578 return phy_start_aneg(phydev); 579 580 if (!epause->autoneg) { 581 u32 tempval; 582 tempval = gfar_read(®s->maccfg1); 583 tempval &= ~(MACCFG1_TX_FLOW | MACCFG1_RX_FLOW); 584 585 priv->tx_actual_en = 0; 586 if (priv->tx_pause_en) { 587 priv->tx_actual_en = 1; 588 tempval |= MACCFG1_TX_FLOW; 589 } 590 591 if (priv->rx_pause_en) 592 tempval |= MACCFG1_RX_FLOW; 593 gfar_write(®s->maccfg1, tempval); 594 } 595 } 596 597 return 0; 598 } 599 600 int gfar_set_features(struct net_device *dev, netdev_features_t features) 601 { 602 netdev_features_t changed = dev->features ^ features; 603 struct gfar_private *priv = netdev_priv(dev); 604 int err = 0; 605 606 if (!(changed & (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | 607 NETIF_F_RXCSUM))) 608 return 0; 609 610 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state)) 611 cpu_relax(); 612 613 dev->features = features; 614 615 if (dev->flags & IFF_UP) { 616 /* Now we take down the rings to rebuild them */ 617 stop_gfar(dev); 618 err = startup_gfar(dev); 619 } else { 620 gfar_mac_reset(priv); 621 } 622 623 clear_bit_unlock(GFAR_RESETTING, &priv->state); 624 625 return err; 626 } 627 628 static uint32_t gfar_get_msglevel(struct net_device *dev) 629 { 630 struct gfar_private *priv = netdev_priv(dev); 631 632 return priv->msg_enable; 633 } 634 635 static void gfar_set_msglevel(struct net_device *dev, uint32_t data) 636 { 637 struct gfar_private *priv = netdev_priv(dev); 638 639 priv->msg_enable = data; 640 } 641 642 #ifdef CONFIG_PM 643 static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 644 { 645 struct gfar_private *priv = netdev_priv(dev); 646 647 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) { 648 wol->supported = WAKE_MAGIC; 649 wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0; 650 } else { 651 wol->supported = wol->wolopts = 0; 652 } 653 } 654 655 static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 656 { 657 struct gfar_private *priv = netdev_priv(dev); 658 659 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) && 660 wol->wolopts != 0) 661 return -EINVAL; 662 663 if (wol->wolopts & ~WAKE_MAGIC) 664 return -EINVAL; 665 666 device_set_wakeup_enable(&dev->dev, wol->wolopts & WAKE_MAGIC); 667 668 priv->wol_en = !!device_may_wakeup(&dev->dev); 669 670 return 0; 671 } 672 #endif 673 674 static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow) 675 { 676 u32 fcr = 0x0, fpr = FPR_FILER_MASK; 677 678 if (ethflow & RXH_L2DA) { 679 fcr = RQFCR_PID_DAH | RQFCR_CMP_NOMATCH | 680 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; 681 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 682 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 683 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 684 priv->cur_filer_idx = priv->cur_filer_idx - 1; 685 686 fcr = RQFCR_PID_DAL | RQFCR_CMP_NOMATCH | 687 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; 688 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 689 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 690 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 691 priv->cur_filer_idx = priv->cur_filer_idx - 1; 692 } 693 694 if (ethflow & RXH_VLAN) { 695 fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH | 696 RQFCR_AND | RQFCR_HASHTBL_0; 697 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 698 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 699 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 700 priv->cur_filer_idx = priv->cur_filer_idx - 1; 701 } 702 703 if (ethflow & RXH_IP_SRC) { 704 fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | 705 RQFCR_AND | RQFCR_HASHTBL_0; 706 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 707 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 708 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 709 priv->cur_filer_idx = priv->cur_filer_idx - 1; 710 } 711 712 if (ethflow & (RXH_IP_DST)) { 713 fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | 714 RQFCR_AND | RQFCR_HASHTBL_0; 715 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 716 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 717 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 718 priv->cur_filer_idx = priv->cur_filer_idx - 1; 719 } 720 721 if (ethflow & RXH_L3_PROTO) { 722 fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH | 723 RQFCR_AND | RQFCR_HASHTBL_0; 724 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 725 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 726 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 727 priv->cur_filer_idx = priv->cur_filer_idx - 1; 728 } 729 730 if (ethflow & RXH_L4_B_0_1) { 731 fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | 732 RQFCR_AND | RQFCR_HASHTBL_0; 733 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 734 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 735 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 736 priv->cur_filer_idx = priv->cur_filer_idx - 1; 737 } 738 739 if (ethflow & RXH_L4_B_2_3) { 740 fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | 741 RQFCR_AND | RQFCR_HASHTBL_0; 742 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 743 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 744 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 745 priv->cur_filer_idx = priv->cur_filer_idx - 1; 746 } 747 } 748 749 static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow, 750 u64 class) 751 { 752 unsigned int last_rule_idx = priv->cur_filer_idx; 753 unsigned int cmp_rqfpr; 754 unsigned int *local_rqfpr; 755 unsigned int *local_rqfcr; 756 int i = 0x0, k = 0x0; 757 int j = MAX_FILER_IDX, l = 0x0; 758 int ret = 1; 759 760 local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int), 761 GFP_KERNEL); 762 local_rqfcr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int), 763 GFP_KERNEL); 764 if (!local_rqfpr || !local_rqfcr) { 765 ret = 0; 766 goto err; 767 } 768 769 switch (class) { 770 case TCP_V4_FLOW: 771 cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP; 772 break; 773 case UDP_V4_FLOW: 774 cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP; 775 break; 776 case TCP_V6_FLOW: 777 cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP; 778 break; 779 case UDP_V6_FLOW: 780 cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP; 781 break; 782 default: 783 netdev_err(priv->ndev, 784 "Right now this class is not supported\n"); 785 ret = 0; 786 goto err; 787 } 788 789 for (i = 0; i < MAX_FILER_IDX + 1; i++) { 790 local_rqfpr[j] = priv->ftp_rqfpr[i]; 791 local_rqfcr[j] = priv->ftp_rqfcr[i]; 792 j--; 793 if ((priv->ftp_rqfcr[i] == 794 (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) && 795 (priv->ftp_rqfpr[i] == cmp_rqfpr)) 796 break; 797 } 798 799 if (i == MAX_FILER_IDX + 1) { 800 netdev_err(priv->ndev, 801 "No parse rule found, can't create hash rules\n"); 802 ret = 0; 803 goto err; 804 } 805 806 /* If a match was found, then it begins the starting of a cluster rule 807 * if it was already programmed, we need to overwrite these rules 808 */ 809 for (l = i+1; l < MAX_FILER_IDX; l++) { 810 if ((priv->ftp_rqfcr[l] & RQFCR_CLE) && 811 !(priv->ftp_rqfcr[l] & RQFCR_AND)) { 812 priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT | 813 RQFCR_HASHTBL_0 | RQFCR_PID_MASK; 814 priv->ftp_rqfpr[l] = FPR_FILER_MASK; 815 gfar_write_filer(priv, l, priv->ftp_rqfcr[l], 816 priv->ftp_rqfpr[l]); 817 break; 818 } 819 820 if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) && 821 (priv->ftp_rqfcr[l] & RQFCR_AND)) 822 continue; 823 else { 824 local_rqfpr[j] = priv->ftp_rqfpr[l]; 825 local_rqfcr[j] = priv->ftp_rqfcr[l]; 826 j--; 827 } 828 } 829 830 priv->cur_filer_idx = l - 1; 831 last_rule_idx = l; 832 833 /* hash rules */ 834 ethflow_to_filer_rules(priv, ethflow); 835 836 /* Write back the popped out rules again */ 837 for (k = j+1; k < MAX_FILER_IDX; k++) { 838 priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k]; 839 priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k]; 840 gfar_write_filer(priv, priv->cur_filer_idx, 841 local_rqfcr[k], local_rqfpr[k]); 842 if (!priv->cur_filer_idx) 843 break; 844 priv->cur_filer_idx = priv->cur_filer_idx - 1; 845 } 846 847 err: 848 kfree(local_rqfcr); 849 kfree(local_rqfpr); 850 return ret; 851 } 852 853 static int gfar_set_hash_opts(struct gfar_private *priv, 854 struct ethtool_rxnfc *cmd) 855 { 856 /* write the filer rules here */ 857 if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type)) 858 return -EINVAL; 859 860 return 0; 861 } 862 863 static int gfar_check_filer_hardware(struct gfar_private *priv) 864 { 865 struct gfar __iomem *regs = priv->gfargrp[0].regs; 866 u32 i; 867 868 /* Check if we are in FIFO mode */ 869 i = gfar_read(®s->ecntrl); 870 i &= ECNTRL_FIFM; 871 if (i == ECNTRL_FIFM) { 872 netdev_notice(priv->ndev, "Interface in FIFO mode\n"); 873 i = gfar_read(®s->rctrl); 874 i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM; 875 if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) { 876 netdev_info(priv->ndev, 877 "Receive Queue Filtering enabled\n"); 878 } else { 879 netdev_warn(priv->ndev, 880 "Receive Queue Filtering disabled\n"); 881 return -EOPNOTSUPP; 882 } 883 } 884 /* Or in standard mode */ 885 else { 886 i = gfar_read(®s->rctrl); 887 i &= RCTRL_PRSDEP_MASK; 888 if (i == RCTRL_PRSDEP_MASK) { 889 netdev_info(priv->ndev, 890 "Receive Queue Filtering enabled\n"); 891 } else { 892 netdev_warn(priv->ndev, 893 "Receive Queue Filtering disabled\n"); 894 return -EOPNOTSUPP; 895 } 896 } 897 898 /* Sets the properties for arbitrary filer rule 899 * to the first 4 Layer 4 Bytes 900 */ 901 gfar_write(®s->rbifx, 0xC0C1C2C3); 902 return 0; 903 } 904 905 /* Write a mask to filer cache */ 906 static void gfar_set_mask(u32 mask, struct filer_table *tab) 907 { 908 tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT; 909 tab->fe[tab->index].prop = mask; 910 tab->index++; 911 } 912 913 /* Sets parse bits (e.g. IP or TCP) */ 914 static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab) 915 { 916 gfar_set_mask(mask, tab); 917 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE | 918 RQFCR_AND; 919 tab->fe[tab->index].prop = value; 920 tab->index++; 921 } 922 923 static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag, 924 struct filer_table *tab) 925 { 926 gfar_set_mask(mask, tab); 927 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag; 928 tab->fe[tab->index].prop = value; 929 tab->index++; 930 } 931 932 /* For setting a tuple of value and mask of type flag 933 * Example: 934 * IP-Src = 10.0.0.0/255.0.0.0 935 * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4 936 * 937 * Ethtool gives us a value=0 and mask=~0 for don't care a tuple 938 * For a don't care mask it gives us a 0 939 * 940 * The check if don't care and the mask adjustment if mask=0 is done for VLAN 941 * and MAC stuff on an upper level (due to missing information on this level). 942 * For these guys we can discard them if they are value=0 and mask=0. 943 * 944 * Further the all masks are one-padded for better hardware efficiency. 945 */ 946 static void gfar_set_attribute(u32 value, u32 mask, u32 flag, 947 struct filer_table *tab) 948 { 949 switch (flag) { 950 /* 3bit */ 951 case RQFCR_PID_PRI: 952 if (!(value | mask)) 953 return; 954 mask |= RQFCR_PID_PRI_MASK; 955 break; 956 /* 8bit */ 957 case RQFCR_PID_L4P: 958 case RQFCR_PID_TOS: 959 if (!~(mask | RQFCR_PID_L4P_MASK)) 960 return; 961 if (!mask) 962 mask = ~0; 963 else 964 mask |= RQFCR_PID_L4P_MASK; 965 break; 966 /* 12bit */ 967 case RQFCR_PID_VID: 968 if (!(value | mask)) 969 return; 970 mask |= RQFCR_PID_VID_MASK; 971 break; 972 /* 16bit */ 973 case RQFCR_PID_DPT: 974 case RQFCR_PID_SPT: 975 case RQFCR_PID_ETY: 976 if (!~(mask | RQFCR_PID_PORT_MASK)) 977 return; 978 if (!mask) 979 mask = ~0; 980 else 981 mask |= RQFCR_PID_PORT_MASK; 982 break; 983 /* 24bit */ 984 case RQFCR_PID_DAH: 985 case RQFCR_PID_DAL: 986 case RQFCR_PID_SAH: 987 case RQFCR_PID_SAL: 988 if (!(value | mask)) 989 return; 990 mask |= RQFCR_PID_MAC_MASK; 991 break; 992 /* for all real 32bit masks */ 993 default: 994 if (!~mask) 995 return; 996 if (!mask) 997 mask = ~0; 998 break; 999 } 1000 gfar_set_general_attribute(value, mask, flag, tab); 1001 } 1002 1003 /* Translates value and mask for UDP, TCP or SCTP */ 1004 static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value, 1005 struct ethtool_tcpip4_spec *mask, 1006 struct filer_table *tab) 1007 { 1008 gfar_set_attribute(be32_to_cpu(value->ip4src), 1009 be32_to_cpu(mask->ip4src), 1010 RQFCR_PID_SIA, tab); 1011 gfar_set_attribute(be32_to_cpu(value->ip4dst), 1012 be32_to_cpu(mask->ip4dst), 1013 RQFCR_PID_DIA, tab); 1014 gfar_set_attribute(be16_to_cpu(value->pdst), 1015 be16_to_cpu(mask->pdst), 1016 RQFCR_PID_DPT, tab); 1017 gfar_set_attribute(be16_to_cpu(value->psrc), 1018 be16_to_cpu(mask->psrc), 1019 RQFCR_PID_SPT, tab); 1020 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab); 1021 } 1022 1023 /* Translates value and mask for RAW-IP4 */ 1024 static void gfar_set_user_ip(struct ethtool_usrip4_spec *value, 1025 struct ethtool_usrip4_spec *mask, 1026 struct filer_table *tab) 1027 { 1028 gfar_set_attribute(be32_to_cpu(value->ip4src), 1029 be32_to_cpu(mask->ip4src), 1030 RQFCR_PID_SIA, tab); 1031 gfar_set_attribute(be32_to_cpu(value->ip4dst), 1032 be32_to_cpu(mask->ip4dst), 1033 RQFCR_PID_DIA, tab); 1034 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab); 1035 gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab); 1036 gfar_set_attribute(be32_to_cpu(value->l4_4_bytes), 1037 be32_to_cpu(mask->l4_4_bytes), 1038 RQFCR_PID_ARB, tab); 1039 1040 } 1041 1042 /* Translates value and mask for ETHER spec */ 1043 static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask, 1044 struct filer_table *tab) 1045 { 1046 u32 upper_temp_mask = 0; 1047 u32 lower_temp_mask = 0; 1048 1049 /* Source address */ 1050 if (!is_broadcast_ether_addr(mask->h_source)) { 1051 if (is_zero_ether_addr(mask->h_source)) { 1052 upper_temp_mask = 0xFFFFFFFF; 1053 lower_temp_mask = 0xFFFFFFFF; 1054 } else { 1055 upper_temp_mask = mask->h_source[0] << 16 | 1056 mask->h_source[1] << 8 | 1057 mask->h_source[2]; 1058 lower_temp_mask = mask->h_source[3] << 16 | 1059 mask->h_source[4] << 8 | 1060 mask->h_source[5]; 1061 } 1062 /* Upper 24bit */ 1063 gfar_set_attribute(value->h_source[0] << 16 | 1064 value->h_source[1] << 8 | 1065 value->h_source[2], 1066 upper_temp_mask, RQFCR_PID_SAH, tab); 1067 /* And the same for the lower part */ 1068 gfar_set_attribute(value->h_source[3] << 16 | 1069 value->h_source[4] << 8 | 1070 value->h_source[5], 1071 lower_temp_mask, RQFCR_PID_SAL, tab); 1072 } 1073 /* Destination address */ 1074 if (!is_broadcast_ether_addr(mask->h_dest)) { 1075 /* Special for destination is limited broadcast */ 1076 if ((is_broadcast_ether_addr(value->h_dest) && 1077 is_zero_ether_addr(mask->h_dest))) { 1078 gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab); 1079 } else { 1080 if (is_zero_ether_addr(mask->h_dest)) { 1081 upper_temp_mask = 0xFFFFFFFF; 1082 lower_temp_mask = 0xFFFFFFFF; 1083 } else { 1084 upper_temp_mask = mask->h_dest[0] << 16 | 1085 mask->h_dest[1] << 8 | 1086 mask->h_dest[2]; 1087 lower_temp_mask = mask->h_dest[3] << 16 | 1088 mask->h_dest[4] << 8 | 1089 mask->h_dest[5]; 1090 } 1091 1092 /* Upper 24bit */ 1093 gfar_set_attribute(value->h_dest[0] << 16 | 1094 value->h_dest[1] << 8 | 1095 value->h_dest[2], 1096 upper_temp_mask, RQFCR_PID_DAH, tab); 1097 /* And the same for the lower part */ 1098 gfar_set_attribute(value->h_dest[3] << 16 | 1099 value->h_dest[4] << 8 | 1100 value->h_dest[5], 1101 lower_temp_mask, RQFCR_PID_DAL, tab); 1102 } 1103 } 1104 1105 gfar_set_attribute(be16_to_cpu(value->h_proto), 1106 be16_to_cpu(mask->h_proto), 1107 RQFCR_PID_ETY, tab); 1108 } 1109 1110 static inline u32 vlan_tci_vid(struct ethtool_rx_flow_spec *rule) 1111 { 1112 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_VID_MASK; 1113 } 1114 1115 static inline u32 vlan_tci_vidm(struct ethtool_rx_flow_spec *rule) 1116 { 1117 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_VID_MASK; 1118 } 1119 1120 static inline u32 vlan_tci_cfi(struct ethtool_rx_flow_spec *rule) 1121 { 1122 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_CFI_MASK; 1123 } 1124 1125 static inline u32 vlan_tci_cfim(struct ethtool_rx_flow_spec *rule) 1126 { 1127 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_CFI_MASK; 1128 } 1129 1130 static inline u32 vlan_tci_prio(struct ethtool_rx_flow_spec *rule) 1131 { 1132 return (be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_PRIO_MASK) >> 1133 VLAN_PRIO_SHIFT; 1134 } 1135 1136 static inline u32 vlan_tci_priom(struct ethtool_rx_flow_spec *rule) 1137 { 1138 return (be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_PRIO_MASK) >> 1139 VLAN_PRIO_SHIFT; 1140 } 1141 1142 /* Convert a rule to binary filter format of gianfar */ 1143 static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule, 1144 struct filer_table *tab) 1145 { 1146 u32 vlan = 0, vlan_mask = 0; 1147 u32 id = 0, id_mask = 0; 1148 u32 cfi = 0, cfi_mask = 0; 1149 u32 prio = 0, prio_mask = 0; 1150 u32 old_index = tab->index; 1151 1152 /* Check if vlan is wanted */ 1153 if ((rule->flow_type & FLOW_EXT) && 1154 (rule->m_ext.vlan_tci != cpu_to_be16(0xFFFF))) { 1155 if (!rule->m_ext.vlan_tci) 1156 rule->m_ext.vlan_tci = cpu_to_be16(0xFFFF); 1157 1158 vlan = RQFPR_VLN; 1159 vlan_mask = RQFPR_VLN; 1160 1161 /* Separate the fields */ 1162 id = vlan_tci_vid(rule); 1163 id_mask = vlan_tci_vidm(rule); 1164 cfi = vlan_tci_cfi(rule); 1165 cfi_mask = vlan_tci_cfim(rule); 1166 prio = vlan_tci_prio(rule); 1167 prio_mask = vlan_tci_priom(rule); 1168 1169 if (cfi == VLAN_TAG_PRESENT && cfi_mask == VLAN_TAG_PRESENT) { 1170 vlan |= RQFPR_CFI; 1171 vlan_mask |= RQFPR_CFI; 1172 } else if (cfi != VLAN_TAG_PRESENT && 1173 cfi_mask == VLAN_TAG_PRESENT) { 1174 vlan_mask |= RQFPR_CFI; 1175 } 1176 } 1177 1178 switch (rule->flow_type & ~FLOW_EXT) { 1179 case TCP_V4_FLOW: 1180 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan, 1181 RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab); 1182 gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec, 1183 &rule->m_u.tcp_ip4_spec, tab); 1184 break; 1185 case UDP_V4_FLOW: 1186 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan, 1187 RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab); 1188 gfar_set_basic_ip(&rule->h_u.udp_ip4_spec, 1189 &rule->m_u.udp_ip4_spec, tab); 1190 break; 1191 case SCTP_V4_FLOW: 1192 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask, 1193 tab); 1194 gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab); 1195 gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u, 1196 (struct ethtool_tcpip4_spec *)&rule->m_u, 1197 tab); 1198 break; 1199 case IP_USER_FLOW: 1200 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask, 1201 tab); 1202 gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u, 1203 (struct ethtool_usrip4_spec *) &rule->m_u, 1204 tab); 1205 break; 1206 case ETHER_FLOW: 1207 if (vlan) 1208 gfar_set_parse_bits(vlan, vlan_mask, tab); 1209 gfar_set_ether((struct ethhdr *) &rule->h_u, 1210 (struct ethhdr *) &rule->m_u, tab); 1211 break; 1212 default: 1213 return -1; 1214 } 1215 1216 /* Set the vlan attributes in the end */ 1217 if (vlan) { 1218 gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab); 1219 gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab); 1220 } 1221 1222 /* If there has been nothing written till now, it must be a default */ 1223 if (tab->index == old_index) { 1224 gfar_set_mask(0xFFFFFFFF, tab); 1225 tab->fe[tab->index].ctrl = 0x20; 1226 tab->fe[tab->index].prop = 0x0; 1227 tab->index++; 1228 } 1229 1230 /* Remove last AND */ 1231 tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND); 1232 1233 /* Specify which queue to use or to drop */ 1234 if (rule->ring_cookie == RX_CLS_FLOW_DISC) 1235 tab->fe[tab->index - 1].ctrl |= RQFCR_RJE; 1236 else 1237 tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10); 1238 1239 /* Only big enough entries can be clustered */ 1240 if (tab->index > (old_index + 2)) { 1241 tab->fe[old_index + 1].ctrl |= RQFCR_CLE; 1242 tab->fe[tab->index - 1].ctrl |= RQFCR_CLE; 1243 } 1244 1245 /* In rare cases the cache can be full while there is 1246 * free space in hw 1247 */ 1248 if (tab->index > MAX_FILER_CACHE_IDX - 1) 1249 return -EBUSY; 1250 1251 return 0; 1252 } 1253 1254 /* Write the bit-pattern from software's buffer to hardware registers */ 1255 static int gfar_write_filer_table(struct gfar_private *priv, 1256 struct filer_table *tab) 1257 { 1258 u32 i = 0; 1259 if (tab->index > MAX_FILER_IDX - 1) 1260 return -EBUSY; 1261 1262 /* Fill regular entries */ 1263 for (; i < MAX_FILER_IDX && (tab->fe[i].ctrl | tab->fe[i].prop); i++) 1264 gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop); 1265 /* Fill the rest with fall-troughs */ 1266 for (; i < MAX_FILER_IDX; i++) 1267 gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF); 1268 /* Last entry must be default accept 1269 * because that's what people expect 1270 */ 1271 gfar_write_filer(priv, i, 0x20, 0x0); 1272 1273 return 0; 1274 } 1275 1276 static int gfar_check_capability(struct ethtool_rx_flow_spec *flow, 1277 struct gfar_private *priv) 1278 { 1279 1280 if (flow->flow_type & FLOW_EXT) { 1281 if (~flow->m_ext.data[0] || ~flow->m_ext.data[1]) 1282 netdev_warn(priv->ndev, 1283 "User-specific data not supported!\n"); 1284 if (~flow->m_ext.vlan_etype) 1285 netdev_warn(priv->ndev, 1286 "VLAN-etype not supported!\n"); 1287 } 1288 if (flow->flow_type == IP_USER_FLOW) 1289 if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4) 1290 netdev_warn(priv->ndev, 1291 "IP-Version differing from IPv4 not supported!\n"); 1292 1293 return 0; 1294 } 1295 1296 static int gfar_process_filer_changes(struct gfar_private *priv) 1297 { 1298 struct ethtool_flow_spec_container *j; 1299 struct filer_table *tab; 1300 s32 ret = 0; 1301 1302 /* So index is set to zero, too! */ 1303 tab = kzalloc(sizeof(*tab), GFP_KERNEL); 1304 if (tab == NULL) 1305 return -ENOMEM; 1306 1307 /* Now convert the existing filer data from flow_spec into 1308 * filer tables binary format 1309 */ 1310 list_for_each_entry(j, &priv->rx_list.list, list) { 1311 ret = gfar_convert_to_filer(&j->fs, tab); 1312 if (ret == -EBUSY) { 1313 netdev_err(priv->ndev, 1314 "Rule not added: No free space!\n"); 1315 goto end; 1316 } 1317 if (ret == -1) { 1318 netdev_err(priv->ndev, 1319 "Rule not added: Unsupported Flow-type!\n"); 1320 goto end; 1321 } 1322 } 1323 1324 /* Write everything to hardware */ 1325 ret = gfar_write_filer_table(priv, tab); 1326 if (ret == -EBUSY) { 1327 netdev_err(priv->ndev, "Rule not added: No free space!\n"); 1328 goto end; 1329 } 1330 1331 end: 1332 kfree(tab); 1333 return ret; 1334 } 1335 1336 static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow) 1337 { 1338 u32 i = 0; 1339 1340 for (i = 0; i < sizeof(flow->m_u); i++) 1341 flow->m_u.hdata[i] ^= 0xFF; 1342 1343 flow->m_ext.vlan_etype ^= cpu_to_be16(0xFFFF); 1344 flow->m_ext.vlan_tci ^= cpu_to_be16(0xFFFF); 1345 flow->m_ext.data[0] ^= cpu_to_be32(~0); 1346 flow->m_ext.data[1] ^= cpu_to_be32(~0); 1347 } 1348 1349 static int gfar_add_cls(struct gfar_private *priv, 1350 struct ethtool_rx_flow_spec *flow) 1351 { 1352 struct ethtool_flow_spec_container *temp, *comp; 1353 int ret = 0; 1354 1355 temp = kmalloc(sizeof(*temp), GFP_KERNEL); 1356 if (temp == NULL) 1357 return -ENOMEM; 1358 memcpy(&temp->fs, flow, sizeof(temp->fs)); 1359 1360 gfar_invert_masks(&temp->fs); 1361 ret = gfar_check_capability(&temp->fs, priv); 1362 if (ret) 1363 goto clean_mem; 1364 /* Link in the new element at the right @location */ 1365 if (list_empty(&priv->rx_list.list)) { 1366 ret = gfar_check_filer_hardware(priv); 1367 if (ret != 0) 1368 goto clean_mem; 1369 list_add(&temp->list, &priv->rx_list.list); 1370 goto process; 1371 } else { 1372 list_for_each_entry(comp, &priv->rx_list.list, list) { 1373 if (comp->fs.location > flow->location) { 1374 list_add_tail(&temp->list, &comp->list); 1375 goto process; 1376 } 1377 if (comp->fs.location == flow->location) { 1378 netdev_err(priv->ndev, 1379 "Rule not added: ID %d not free!\n", 1380 flow->location); 1381 ret = -EBUSY; 1382 goto clean_mem; 1383 } 1384 } 1385 list_add_tail(&temp->list, &priv->rx_list.list); 1386 } 1387 1388 process: 1389 priv->rx_list.count++; 1390 ret = gfar_process_filer_changes(priv); 1391 if (ret) 1392 goto clean_list; 1393 return ret; 1394 1395 clean_list: 1396 priv->rx_list.count--; 1397 list_del(&temp->list); 1398 clean_mem: 1399 kfree(temp); 1400 return ret; 1401 } 1402 1403 static int gfar_del_cls(struct gfar_private *priv, u32 loc) 1404 { 1405 struct ethtool_flow_spec_container *comp; 1406 u32 ret = -EINVAL; 1407 1408 if (list_empty(&priv->rx_list.list)) 1409 return ret; 1410 1411 list_for_each_entry(comp, &priv->rx_list.list, list) { 1412 if (comp->fs.location == loc) { 1413 list_del(&comp->list); 1414 kfree(comp); 1415 priv->rx_list.count--; 1416 gfar_process_filer_changes(priv); 1417 ret = 0; 1418 break; 1419 } 1420 } 1421 1422 return ret; 1423 } 1424 1425 static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd) 1426 { 1427 struct ethtool_flow_spec_container *comp; 1428 u32 ret = -EINVAL; 1429 1430 list_for_each_entry(comp, &priv->rx_list.list, list) { 1431 if (comp->fs.location == cmd->fs.location) { 1432 memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs)); 1433 gfar_invert_masks(&cmd->fs); 1434 ret = 0; 1435 break; 1436 } 1437 } 1438 1439 return ret; 1440 } 1441 1442 static int gfar_get_cls_all(struct gfar_private *priv, 1443 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1444 { 1445 struct ethtool_flow_spec_container *comp; 1446 u32 i = 0; 1447 1448 list_for_each_entry(comp, &priv->rx_list.list, list) { 1449 if (i == cmd->rule_cnt) 1450 return -EMSGSIZE; 1451 rule_locs[i] = comp->fs.location; 1452 i++; 1453 } 1454 1455 cmd->data = MAX_FILER_IDX; 1456 cmd->rule_cnt = i; 1457 1458 return 0; 1459 } 1460 1461 static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd) 1462 { 1463 struct gfar_private *priv = netdev_priv(dev); 1464 int ret = 0; 1465 1466 if (test_bit(GFAR_RESETTING, &priv->state)) 1467 return -EBUSY; 1468 1469 mutex_lock(&priv->rx_queue_access); 1470 1471 switch (cmd->cmd) { 1472 case ETHTOOL_SRXFH: 1473 ret = gfar_set_hash_opts(priv, cmd); 1474 break; 1475 case ETHTOOL_SRXCLSRLINS: 1476 if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC && 1477 cmd->fs.ring_cookie >= priv->num_rx_queues) || 1478 cmd->fs.location >= MAX_FILER_IDX) { 1479 ret = -EINVAL; 1480 break; 1481 } 1482 ret = gfar_add_cls(priv, &cmd->fs); 1483 break; 1484 case ETHTOOL_SRXCLSRLDEL: 1485 ret = gfar_del_cls(priv, cmd->fs.location); 1486 break; 1487 default: 1488 ret = -EINVAL; 1489 } 1490 1491 mutex_unlock(&priv->rx_queue_access); 1492 1493 return ret; 1494 } 1495 1496 static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd, 1497 u32 *rule_locs) 1498 { 1499 struct gfar_private *priv = netdev_priv(dev); 1500 int ret = 0; 1501 1502 switch (cmd->cmd) { 1503 case ETHTOOL_GRXRINGS: 1504 cmd->data = priv->num_rx_queues; 1505 break; 1506 case ETHTOOL_GRXCLSRLCNT: 1507 cmd->rule_cnt = priv->rx_list.count; 1508 break; 1509 case ETHTOOL_GRXCLSRULE: 1510 ret = gfar_get_cls(priv, cmd); 1511 break; 1512 case ETHTOOL_GRXCLSRLALL: 1513 ret = gfar_get_cls_all(priv, cmd, rule_locs); 1514 break; 1515 default: 1516 ret = -EINVAL; 1517 break; 1518 } 1519 1520 return ret; 1521 } 1522 1523 int gfar_phc_index = -1; 1524 EXPORT_SYMBOL(gfar_phc_index); 1525 1526 static int gfar_get_ts_info(struct net_device *dev, 1527 struct ethtool_ts_info *info) 1528 { 1529 struct gfar_private *priv = netdev_priv(dev); 1530 1531 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) { 1532 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE | 1533 SOF_TIMESTAMPING_SOFTWARE; 1534 info->phc_index = -1; 1535 return 0; 1536 } 1537 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE | 1538 SOF_TIMESTAMPING_RX_HARDWARE | 1539 SOF_TIMESTAMPING_RAW_HARDWARE; 1540 info->phc_index = gfar_phc_index; 1541 info->tx_types = (1 << HWTSTAMP_TX_OFF) | 1542 (1 << HWTSTAMP_TX_ON); 1543 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | 1544 (1 << HWTSTAMP_FILTER_ALL); 1545 return 0; 1546 } 1547 1548 const struct ethtool_ops gfar_ethtool_ops = { 1549 .get_settings = gfar_gsettings, 1550 .set_settings = gfar_ssettings, 1551 .get_drvinfo = gfar_gdrvinfo, 1552 .get_regs_len = gfar_reglen, 1553 .get_regs = gfar_get_regs, 1554 .get_link = ethtool_op_get_link, 1555 .get_coalesce = gfar_gcoalesce, 1556 .set_coalesce = gfar_scoalesce, 1557 .get_ringparam = gfar_gringparam, 1558 .set_ringparam = gfar_sringparam, 1559 .get_pauseparam = gfar_gpauseparam, 1560 .set_pauseparam = gfar_spauseparam, 1561 .get_strings = gfar_gstrings, 1562 .get_sset_count = gfar_sset_count, 1563 .get_ethtool_stats = gfar_fill_stats, 1564 .get_msglevel = gfar_get_msglevel, 1565 .set_msglevel = gfar_set_msglevel, 1566 #ifdef CONFIG_PM 1567 .get_wol = gfar_get_wol, 1568 .set_wol = gfar_set_wol, 1569 #endif 1570 .set_rxnfc = gfar_set_nfc, 1571 .get_rxnfc = gfar_get_nfc, 1572 .get_ts_info = gfar_get_ts_info, 1573 }; 1574