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 } 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 wol->supported = 0; 646 wol->wolopts = 0; 647 648 if (priv->wol_supported & GFAR_WOL_MAGIC) 649 wol->supported |= WAKE_MAGIC; 650 651 if (priv->wol_supported & GFAR_WOL_FILER_UCAST) 652 wol->supported |= WAKE_UCAST; 653 654 if (priv->wol_opts & GFAR_WOL_MAGIC) 655 wol->wolopts |= WAKE_MAGIC; 656 657 if (priv->wol_opts & GFAR_WOL_FILER_UCAST) 658 wol->wolopts |= WAKE_UCAST; 659 } 660 661 static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 662 { 663 struct gfar_private *priv = netdev_priv(dev); 664 u16 wol_opts = 0; 665 int err; 666 667 if (!priv->wol_supported && wol->wolopts) 668 return -EINVAL; 669 670 if (wol->wolopts & ~(WAKE_MAGIC | WAKE_UCAST)) 671 return -EINVAL; 672 673 if (wol->wolopts & WAKE_MAGIC) { 674 wol_opts |= GFAR_WOL_MAGIC; 675 } else { 676 if (wol->wolopts & WAKE_UCAST) 677 wol_opts |= GFAR_WOL_FILER_UCAST; 678 } 679 680 wol_opts &= priv->wol_supported; 681 priv->wol_opts = 0; 682 683 err = device_set_wakeup_enable(priv->dev, wol_opts); 684 if (err) 685 return err; 686 687 priv->wol_opts = wol_opts; 688 689 return 0; 690 } 691 #endif 692 693 static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow) 694 { 695 u32 fcr = 0x0, fpr = FPR_FILER_MASK; 696 697 if (ethflow & RXH_L2DA) { 698 fcr = RQFCR_PID_DAH | RQFCR_CMP_NOMATCH | 699 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; 700 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 701 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 702 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 703 priv->cur_filer_idx = priv->cur_filer_idx - 1; 704 705 fcr = RQFCR_PID_DAL | RQFCR_CMP_NOMATCH | 706 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; 707 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 708 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 709 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 710 priv->cur_filer_idx = priv->cur_filer_idx - 1; 711 } 712 713 if (ethflow & RXH_VLAN) { 714 fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH | 715 RQFCR_AND | RQFCR_HASHTBL_0; 716 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 717 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 718 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 719 priv->cur_filer_idx = priv->cur_filer_idx - 1; 720 } 721 722 if (ethflow & RXH_IP_SRC) { 723 fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | 724 RQFCR_AND | RQFCR_HASHTBL_0; 725 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 726 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 727 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 728 priv->cur_filer_idx = priv->cur_filer_idx - 1; 729 } 730 731 if (ethflow & (RXH_IP_DST)) { 732 fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | 733 RQFCR_AND | RQFCR_HASHTBL_0; 734 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 735 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 736 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 737 priv->cur_filer_idx = priv->cur_filer_idx - 1; 738 } 739 740 if (ethflow & RXH_L3_PROTO) { 741 fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH | 742 RQFCR_AND | RQFCR_HASHTBL_0; 743 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 744 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 745 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 746 priv->cur_filer_idx = priv->cur_filer_idx - 1; 747 } 748 749 if (ethflow & RXH_L4_B_0_1) { 750 fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | 751 RQFCR_AND | RQFCR_HASHTBL_0; 752 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 753 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 754 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 755 priv->cur_filer_idx = priv->cur_filer_idx - 1; 756 } 757 758 if (ethflow & RXH_L4_B_2_3) { 759 fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | 760 RQFCR_AND | RQFCR_HASHTBL_0; 761 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; 762 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; 763 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); 764 priv->cur_filer_idx = priv->cur_filer_idx - 1; 765 } 766 } 767 768 static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow, 769 u64 class) 770 { 771 unsigned int last_rule_idx = priv->cur_filer_idx; 772 unsigned int cmp_rqfpr; 773 unsigned int *local_rqfpr; 774 unsigned int *local_rqfcr; 775 int i = 0x0, k = 0x0; 776 int j = MAX_FILER_IDX, l = 0x0; 777 int ret = 1; 778 779 local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int), 780 GFP_KERNEL); 781 local_rqfcr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int), 782 GFP_KERNEL); 783 if (!local_rqfpr || !local_rqfcr) { 784 ret = 0; 785 goto err; 786 } 787 788 switch (class) { 789 case TCP_V4_FLOW: 790 cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP; 791 break; 792 case UDP_V4_FLOW: 793 cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP; 794 break; 795 case TCP_V6_FLOW: 796 cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP; 797 break; 798 case UDP_V6_FLOW: 799 cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP; 800 break; 801 default: 802 netdev_err(priv->ndev, 803 "Right now this class is not supported\n"); 804 ret = 0; 805 goto err; 806 } 807 808 for (i = 0; i < MAX_FILER_IDX + 1; i++) { 809 local_rqfpr[j] = priv->ftp_rqfpr[i]; 810 local_rqfcr[j] = priv->ftp_rqfcr[i]; 811 j--; 812 if ((priv->ftp_rqfcr[i] == 813 (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) && 814 (priv->ftp_rqfpr[i] == cmp_rqfpr)) 815 break; 816 } 817 818 if (i == MAX_FILER_IDX + 1) { 819 netdev_err(priv->ndev, 820 "No parse rule found, can't create hash rules\n"); 821 ret = 0; 822 goto err; 823 } 824 825 /* If a match was found, then it begins the starting of a cluster rule 826 * if it was already programmed, we need to overwrite these rules 827 */ 828 for (l = i+1; l < MAX_FILER_IDX; l++) { 829 if ((priv->ftp_rqfcr[l] & RQFCR_CLE) && 830 !(priv->ftp_rqfcr[l] & RQFCR_AND)) { 831 priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT | 832 RQFCR_HASHTBL_0 | RQFCR_PID_MASK; 833 priv->ftp_rqfpr[l] = FPR_FILER_MASK; 834 gfar_write_filer(priv, l, priv->ftp_rqfcr[l], 835 priv->ftp_rqfpr[l]); 836 break; 837 } 838 839 if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) && 840 (priv->ftp_rqfcr[l] & RQFCR_AND)) 841 continue; 842 else { 843 local_rqfpr[j] = priv->ftp_rqfpr[l]; 844 local_rqfcr[j] = priv->ftp_rqfcr[l]; 845 j--; 846 } 847 } 848 849 priv->cur_filer_idx = l - 1; 850 last_rule_idx = l; 851 852 /* hash rules */ 853 ethflow_to_filer_rules(priv, ethflow); 854 855 /* Write back the popped out rules again */ 856 for (k = j+1; k < MAX_FILER_IDX; k++) { 857 priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k]; 858 priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k]; 859 gfar_write_filer(priv, priv->cur_filer_idx, 860 local_rqfcr[k], local_rqfpr[k]); 861 if (!priv->cur_filer_idx) 862 break; 863 priv->cur_filer_idx = priv->cur_filer_idx - 1; 864 } 865 866 err: 867 kfree(local_rqfcr); 868 kfree(local_rqfpr); 869 return ret; 870 } 871 872 static int gfar_set_hash_opts(struct gfar_private *priv, 873 struct ethtool_rxnfc *cmd) 874 { 875 /* write the filer rules here */ 876 if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type)) 877 return -EINVAL; 878 879 return 0; 880 } 881 882 static int gfar_check_filer_hardware(struct gfar_private *priv) 883 { 884 struct gfar __iomem *regs = priv->gfargrp[0].regs; 885 u32 i; 886 887 /* Check if we are in FIFO mode */ 888 i = gfar_read(®s->ecntrl); 889 i &= ECNTRL_FIFM; 890 if (i == ECNTRL_FIFM) { 891 netdev_notice(priv->ndev, "Interface in FIFO mode\n"); 892 i = gfar_read(®s->rctrl); 893 i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM; 894 if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) { 895 netdev_info(priv->ndev, 896 "Receive Queue Filtering enabled\n"); 897 } else { 898 netdev_warn(priv->ndev, 899 "Receive Queue Filtering disabled\n"); 900 return -EOPNOTSUPP; 901 } 902 } 903 /* Or in standard mode */ 904 else { 905 i = gfar_read(®s->rctrl); 906 i &= RCTRL_PRSDEP_MASK; 907 if (i == RCTRL_PRSDEP_MASK) { 908 netdev_info(priv->ndev, 909 "Receive Queue Filtering enabled\n"); 910 } else { 911 netdev_warn(priv->ndev, 912 "Receive Queue Filtering disabled\n"); 913 return -EOPNOTSUPP; 914 } 915 } 916 917 /* Sets the properties for arbitrary filer rule 918 * to the first 4 Layer 4 Bytes 919 */ 920 gfar_write(®s->rbifx, 0xC0C1C2C3); 921 return 0; 922 } 923 924 /* Write a mask to filer cache */ 925 static void gfar_set_mask(u32 mask, struct filer_table *tab) 926 { 927 tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT; 928 tab->fe[tab->index].prop = mask; 929 tab->index++; 930 } 931 932 /* Sets parse bits (e.g. IP or TCP) */ 933 static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab) 934 { 935 gfar_set_mask(mask, tab); 936 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE | 937 RQFCR_AND; 938 tab->fe[tab->index].prop = value; 939 tab->index++; 940 } 941 942 static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag, 943 struct filer_table *tab) 944 { 945 gfar_set_mask(mask, tab); 946 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag; 947 tab->fe[tab->index].prop = value; 948 tab->index++; 949 } 950 951 /* For setting a tuple of value and mask of type flag 952 * Example: 953 * IP-Src = 10.0.0.0/255.0.0.0 954 * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4 955 * 956 * Ethtool gives us a value=0 and mask=~0 for don't care a tuple 957 * For a don't care mask it gives us a 0 958 * 959 * The check if don't care and the mask adjustment if mask=0 is done for VLAN 960 * and MAC stuff on an upper level (due to missing information on this level). 961 * For these guys we can discard them if they are value=0 and mask=0. 962 * 963 * Further the all masks are one-padded for better hardware efficiency. 964 */ 965 static void gfar_set_attribute(u32 value, u32 mask, u32 flag, 966 struct filer_table *tab) 967 { 968 switch (flag) { 969 /* 3bit */ 970 case RQFCR_PID_PRI: 971 if (!(value | mask)) 972 return; 973 mask |= RQFCR_PID_PRI_MASK; 974 break; 975 /* 8bit */ 976 case RQFCR_PID_L4P: 977 case RQFCR_PID_TOS: 978 if (!~(mask | RQFCR_PID_L4P_MASK)) 979 return; 980 if (!mask) 981 mask = ~0; 982 else 983 mask |= RQFCR_PID_L4P_MASK; 984 break; 985 /* 12bit */ 986 case RQFCR_PID_VID: 987 if (!(value | mask)) 988 return; 989 mask |= RQFCR_PID_VID_MASK; 990 break; 991 /* 16bit */ 992 case RQFCR_PID_DPT: 993 case RQFCR_PID_SPT: 994 case RQFCR_PID_ETY: 995 if (!~(mask | RQFCR_PID_PORT_MASK)) 996 return; 997 if (!mask) 998 mask = ~0; 999 else 1000 mask |= RQFCR_PID_PORT_MASK; 1001 break; 1002 /* 24bit */ 1003 case RQFCR_PID_DAH: 1004 case RQFCR_PID_DAL: 1005 case RQFCR_PID_SAH: 1006 case RQFCR_PID_SAL: 1007 if (!(value | mask)) 1008 return; 1009 mask |= RQFCR_PID_MAC_MASK; 1010 break; 1011 /* for all real 32bit masks */ 1012 default: 1013 if (!~mask) 1014 return; 1015 if (!mask) 1016 mask = ~0; 1017 break; 1018 } 1019 gfar_set_general_attribute(value, mask, flag, tab); 1020 } 1021 1022 /* Translates value and mask for UDP, TCP or SCTP */ 1023 static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value, 1024 struct ethtool_tcpip4_spec *mask, 1025 struct filer_table *tab) 1026 { 1027 gfar_set_attribute(be32_to_cpu(value->ip4src), 1028 be32_to_cpu(mask->ip4src), 1029 RQFCR_PID_SIA, tab); 1030 gfar_set_attribute(be32_to_cpu(value->ip4dst), 1031 be32_to_cpu(mask->ip4dst), 1032 RQFCR_PID_DIA, tab); 1033 gfar_set_attribute(be16_to_cpu(value->pdst), 1034 be16_to_cpu(mask->pdst), 1035 RQFCR_PID_DPT, tab); 1036 gfar_set_attribute(be16_to_cpu(value->psrc), 1037 be16_to_cpu(mask->psrc), 1038 RQFCR_PID_SPT, tab); 1039 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab); 1040 } 1041 1042 /* Translates value and mask for RAW-IP4 */ 1043 static void gfar_set_user_ip(struct ethtool_usrip4_spec *value, 1044 struct ethtool_usrip4_spec *mask, 1045 struct filer_table *tab) 1046 { 1047 gfar_set_attribute(be32_to_cpu(value->ip4src), 1048 be32_to_cpu(mask->ip4src), 1049 RQFCR_PID_SIA, tab); 1050 gfar_set_attribute(be32_to_cpu(value->ip4dst), 1051 be32_to_cpu(mask->ip4dst), 1052 RQFCR_PID_DIA, tab); 1053 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab); 1054 gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab); 1055 gfar_set_attribute(be32_to_cpu(value->l4_4_bytes), 1056 be32_to_cpu(mask->l4_4_bytes), 1057 RQFCR_PID_ARB, tab); 1058 1059 } 1060 1061 /* Translates value and mask for ETHER spec */ 1062 static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask, 1063 struct filer_table *tab) 1064 { 1065 u32 upper_temp_mask = 0; 1066 u32 lower_temp_mask = 0; 1067 1068 /* Source address */ 1069 if (!is_broadcast_ether_addr(mask->h_source)) { 1070 if (is_zero_ether_addr(mask->h_source)) { 1071 upper_temp_mask = 0xFFFFFFFF; 1072 lower_temp_mask = 0xFFFFFFFF; 1073 } else { 1074 upper_temp_mask = mask->h_source[0] << 16 | 1075 mask->h_source[1] << 8 | 1076 mask->h_source[2]; 1077 lower_temp_mask = mask->h_source[3] << 16 | 1078 mask->h_source[4] << 8 | 1079 mask->h_source[5]; 1080 } 1081 /* Upper 24bit */ 1082 gfar_set_attribute(value->h_source[0] << 16 | 1083 value->h_source[1] << 8 | 1084 value->h_source[2], 1085 upper_temp_mask, RQFCR_PID_SAH, tab); 1086 /* And the same for the lower part */ 1087 gfar_set_attribute(value->h_source[3] << 16 | 1088 value->h_source[4] << 8 | 1089 value->h_source[5], 1090 lower_temp_mask, RQFCR_PID_SAL, tab); 1091 } 1092 /* Destination address */ 1093 if (!is_broadcast_ether_addr(mask->h_dest)) { 1094 /* Special for destination is limited broadcast */ 1095 if ((is_broadcast_ether_addr(value->h_dest) && 1096 is_zero_ether_addr(mask->h_dest))) { 1097 gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab); 1098 } else { 1099 if (is_zero_ether_addr(mask->h_dest)) { 1100 upper_temp_mask = 0xFFFFFFFF; 1101 lower_temp_mask = 0xFFFFFFFF; 1102 } else { 1103 upper_temp_mask = mask->h_dest[0] << 16 | 1104 mask->h_dest[1] << 8 | 1105 mask->h_dest[2]; 1106 lower_temp_mask = mask->h_dest[3] << 16 | 1107 mask->h_dest[4] << 8 | 1108 mask->h_dest[5]; 1109 } 1110 1111 /* Upper 24bit */ 1112 gfar_set_attribute(value->h_dest[0] << 16 | 1113 value->h_dest[1] << 8 | 1114 value->h_dest[2], 1115 upper_temp_mask, RQFCR_PID_DAH, tab); 1116 /* And the same for the lower part */ 1117 gfar_set_attribute(value->h_dest[3] << 16 | 1118 value->h_dest[4] << 8 | 1119 value->h_dest[5], 1120 lower_temp_mask, RQFCR_PID_DAL, tab); 1121 } 1122 } 1123 1124 gfar_set_attribute(be16_to_cpu(value->h_proto), 1125 be16_to_cpu(mask->h_proto), 1126 RQFCR_PID_ETY, tab); 1127 } 1128 1129 static inline u32 vlan_tci_vid(struct ethtool_rx_flow_spec *rule) 1130 { 1131 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_VID_MASK; 1132 } 1133 1134 static inline u32 vlan_tci_vidm(struct ethtool_rx_flow_spec *rule) 1135 { 1136 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_VID_MASK; 1137 } 1138 1139 static inline u32 vlan_tci_cfi(struct ethtool_rx_flow_spec *rule) 1140 { 1141 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_CFI_MASK; 1142 } 1143 1144 static inline u32 vlan_tci_cfim(struct ethtool_rx_flow_spec *rule) 1145 { 1146 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_CFI_MASK; 1147 } 1148 1149 static inline u32 vlan_tci_prio(struct ethtool_rx_flow_spec *rule) 1150 { 1151 return (be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_PRIO_MASK) >> 1152 VLAN_PRIO_SHIFT; 1153 } 1154 1155 static inline u32 vlan_tci_priom(struct ethtool_rx_flow_spec *rule) 1156 { 1157 return (be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_PRIO_MASK) >> 1158 VLAN_PRIO_SHIFT; 1159 } 1160 1161 /* Convert a rule to binary filter format of gianfar */ 1162 static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule, 1163 struct filer_table *tab) 1164 { 1165 u32 vlan = 0, vlan_mask = 0; 1166 u32 id = 0, id_mask = 0; 1167 u32 cfi = 0, cfi_mask = 0; 1168 u32 prio = 0, prio_mask = 0; 1169 u32 old_index = tab->index; 1170 1171 /* Check if vlan is wanted */ 1172 if ((rule->flow_type & FLOW_EXT) && 1173 (rule->m_ext.vlan_tci != cpu_to_be16(0xFFFF))) { 1174 if (!rule->m_ext.vlan_tci) 1175 rule->m_ext.vlan_tci = cpu_to_be16(0xFFFF); 1176 1177 vlan = RQFPR_VLN; 1178 vlan_mask = RQFPR_VLN; 1179 1180 /* Separate the fields */ 1181 id = vlan_tci_vid(rule); 1182 id_mask = vlan_tci_vidm(rule); 1183 cfi = vlan_tci_cfi(rule); 1184 cfi_mask = vlan_tci_cfim(rule); 1185 prio = vlan_tci_prio(rule); 1186 prio_mask = vlan_tci_priom(rule); 1187 1188 if (cfi == VLAN_TAG_PRESENT && cfi_mask == VLAN_TAG_PRESENT) { 1189 vlan |= RQFPR_CFI; 1190 vlan_mask |= RQFPR_CFI; 1191 } else if (cfi != VLAN_TAG_PRESENT && 1192 cfi_mask == VLAN_TAG_PRESENT) { 1193 vlan_mask |= RQFPR_CFI; 1194 } 1195 } 1196 1197 switch (rule->flow_type & ~FLOW_EXT) { 1198 case TCP_V4_FLOW: 1199 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan, 1200 RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab); 1201 gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec, 1202 &rule->m_u.tcp_ip4_spec, tab); 1203 break; 1204 case UDP_V4_FLOW: 1205 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan, 1206 RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab); 1207 gfar_set_basic_ip(&rule->h_u.udp_ip4_spec, 1208 &rule->m_u.udp_ip4_spec, tab); 1209 break; 1210 case SCTP_V4_FLOW: 1211 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask, 1212 tab); 1213 gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab); 1214 gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u, 1215 (struct ethtool_tcpip4_spec *)&rule->m_u, 1216 tab); 1217 break; 1218 case IP_USER_FLOW: 1219 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask, 1220 tab); 1221 gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u, 1222 (struct ethtool_usrip4_spec *) &rule->m_u, 1223 tab); 1224 break; 1225 case ETHER_FLOW: 1226 if (vlan) 1227 gfar_set_parse_bits(vlan, vlan_mask, tab); 1228 gfar_set_ether((struct ethhdr *) &rule->h_u, 1229 (struct ethhdr *) &rule->m_u, tab); 1230 break; 1231 default: 1232 return -1; 1233 } 1234 1235 /* Set the vlan attributes in the end */ 1236 if (vlan) { 1237 gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab); 1238 gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab); 1239 } 1240 1241 /* If there has been nothing written till now, it must be a default */ 1242 if (tab->index == old_index) { 1243 gfar_set_mask(0xFFFFFFFF, tab); 1244 tab->fe[tab->index].ctrl = 0x20; 1245 tab->fe[tab->index].prop = 0x0; 1246 tab->index++; 1247 } 1248 1249 /* Remove last AND */ 1250 tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND); 1251 1252 /* Specify which queue to use or to drop */ 1253 if (rule->ring_cookie == RX_CLS_FLOW_DISC) 1254 tab->fe[tab->index - 1].ctrl |= RQFCR_RJE; 1255 else 1256 tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10); 1257 1258 /* Only big enough entries can be clustered */ 1259 if (tab->index > (old_index + 2)) { 1260 tab->fe[old_index + 1].ctrl |= RQFCR_CLE; 1261 tab->fe[tab->index - 1].ctrl |= RQFCR_CLE; 1262 } 1263 1264 /* In rare cases the cache can be full while there is 1265 * free space in hw 1266 */ 1267 if (tab->index > MAX_FILER_CACHE_IDX - 1) 1268 return -EBUSY; 1269 1270 return 0; 1271 } 1272 1273 /* Write the bit-pattern from software's buffer to hardware registers */ 1274 static int gfar_write_filer_table(struct gfar_private *priv, 1275 struct filer_table *tab) 1276 { 1277 u32 i = 0; 1278 if (tab->index > MAX_FILER_IDX - 1) 1279 return -EBUSY; 1280 1281 /* Fill regular entries */ 1282 for (; i < MAX_FILER_IDX && (tab->fe[i].ctrl | tab->fe[i].prop); i++) 1283 gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop); 1284 /* Fill the rest with fall-troughs */ 1285 for (; i < MAX_FILER_IDX; i++) 1286 gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF); 1287 /* Last entry must be default accept 1288 * because that's what people expect 1289 */ 1290 gfar_write_filer(priv, i, 0x20, 0x0); 1291 1292 return 0; 1293 } 1294 1295 static int gfar_check_capability(struct ethtool_rx_flow_spec *flow, 1296 struct gfar_private *priv) 1297 { 1298 1299 if (flow->flow_type & FLOW_EXT) { 1300 if (~flow->m_ext.data[0] || ~flow->m_ext.data[1]) 1301 netdev_warn(priv->ndev, 1302 "User-specific data not supported!\n"); 1303 if (~flow->m_ext.vlan_etype) 1304 netdev_warn(priv->ndev, 1305 "VLAN-etype not supported!\n"); 1306 } 1307 if (flow->flow_type == IP_USER_FLOW) 1308 if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4) 1309 netdev_warn(priv->ndev, 1310 "IP-Version differing from IPv4 not supported!\n"); 1311 1312 return 0; 1313 } 1314 1315 static int gfar_process_filer_changes(struct gfar_private *priv) 1316 { 1317 struct ethtool_flow_spec_container *j; 1318 struct filer_table *tab; 1319 s32 ret = 0; 1320 1321 /* So index is set to zero, too! */ 1322 tab = kzalloc(sizeof(*tab), GFP_KERNEL); 1323 if (tab == NULL) 1324 return -ENOMEM; 1325 1326 /* Now convert the existing filer data from flow_spec into 1327 * filer tables binary format 1328 */ 1329 list_for_each_entry(j, &priv->rx_list.list, list) { 1330 ret = gfar_convert_to_filer(&j->fs, tab); 1331 if (ret == -EBUSY) { 1332 netdev_err(priv->ndev, 1333 "Rule not added: No free space!\n"); 1334 goto end; 1335 } 1336 if (ret == -1) { 1337 netdev_err(priv->ndev, 1338 "Rule not added: Unsupported Flow-type!\n"); 1339 goto end; 1340 } 1341 } 1342 1343 /* Write everything to hardware */ 1344 ret = gfar_write_filer_table(priv, tab); 1345 if (ret == -EBUSY) { 1346 netdev_err(priv->ndev, "Rule not added: No free space!\n"); 1347 goto end; 1348 } 1349 1350 end: 1351 kfree(tab); 1352 return ret; 1353 } 1354 1355 static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow) 1356 { 1357 u32 i = 0; 1358 1359 for (i = 0; i < sizeof(flow->m_u); i++) 1360 flow->m_u.hdata[i] ^= 0xFF; 1361 1362 flow->m_ext.vlan_etype ^= cpu_to_be16(0xFFFF); 1363 flow->m_ext.vlan_tci ^= cpu_to_be16(0xFFFF); 1364 flow->m_ext.data[0] ^= cpu_to_be32(~0); 1365 flow->m_ext.data[1] ^= cpu_to_be32(~0); 1366 } 1367 1368 static int gfar_add_cls(struct gfar_private *priv, 1369 struct ethtool_rx_flow_spec *flow) 1370 { 1371 struct ethtool_flow_spec_container *temp, *comp; 1372 int ret = 0; 1373 1374 temp = kmalloc(sizeof(*temp), GFP_KERNEL); 1375 if (temp == NULL) 1376 return -ENOMEM; 1377 memcpy(&temp->fs, flow, sizeof(temp->fs)); 1378 1379 gfar_invert_masks(&temp->fs); 1380 ret = gfar_check_capability(&temp->fs, priv); 1381 if (ret) 1382 goto clean_mem; 1383 /* Link in the new element at the right @location */ 1384 if (list_empty(&priv->rx_list.list)) { 1385 ret = gfar_check_filer_hardware(priv); 1386 if (ret != 0) 1387 goto clean_mem; 1388 list_add(&temp->list, &priv->rx_list.list); 1389 goto process; 1390 } else { 1391 list_for_each_entry(comp, &priv->rx_list.list, list) { 1392 if (comp->fs.location > flow->location) { 1393 list_add_tail(&temp->list, &comp->list); 1394 goto process; 1395 } 1396 if (comp->fs.location == flow->location) { 1397 netdev_err(priv->ndev, 1398 "Rule not added: ID %d not free!\n", 1399 flow->location); 1400 ret = -EBUSY; 1401 goto clean_mem; 1402 } 1403 } 1404 list_add_tail(&temp->list, &priv->rx_list.list); 1405 } 1406 1407 process: 1408 priv->rx_list.count++; 1409 ret = gfar_process_filer_changes(priv); 1410 if (ret) 1411 goto clean_list; 1412 return ret; 1413 1414 clean_list: 1415 priv->rx_list.count--; 1416 list_del(&temp->list); 1417 clean_mem: 1418 kfree(temp); 1419 return ret; 1420 } 1421 1422 static int gfar_del_cls(struct gfar_private *priv, u32 loc) 1423 { 1424 struct ethtool_flow_spec_container *comp; 1425 u32 ret = -EINVAL; 1426 1427 if (list_empty(&priv->rx_list.list)) 1428 return ret; 1429 1430 list_for_each_entry(comp, &priv->rx_list.list, list) { 1431 if (comp->fs.location == loc) { 1432 list_del(&comp->list); 1433 kfree(comp); 1434 priv->rx_list.count--; 1435 gfar_process_filer_changes(priv); 1436 ret = 0; 1437 break; 1438 } 1439 } 1440 1441 return ret; 1442 } 1443 1444 static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd) 1445 { 1446 struct ethtool_flow_spec_container *comp; 1447 u32 ret = -EINVAL; 1448 1449 list_for_each_entry(comp, &priv->rx_list.list, list) { 1450 if (comp->fs.location == cmd->fs.location) { 1451 memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs)); 1452 gfar_invert_masks(&cmd->fs); 1453 ret = 0; 1454 break; 1455 } 1456 } 1457 1458 return ret; 1459 } 1460 1461 static int gfar_get_cls_all(struct gfar_private *priv, 1462 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1463 { 1464 struct ethtool_flow_spec_container *comp; 1465 u32 i = 0; 1466 1467 list_for_each_entry(comp, &priv->rx_list.list, list) { 1468 if (i == cmd->rule_cnt) 1469 return -EMSGSIZE; 1470 rule_locs[i] = comp->fs.location; 1471 i++; 1472 } 1473 1474 cmd->data = MAX_FILER_IDX; 1475 cmd->rule_cnt = i; 1476 1477 return 0; 1478 } 1479 1480 static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd) 1481 { 1482 struct gfar_private *priv = netdev_priv(dev); 1483 int ret = 0; 1484 1485 if (test_bit(GFAR_RESETTING, &priv->state)) 1486 return -EBUSY; 1487 1488 mutex_lock(&priv->rx_queue_access); 1489 1490 switch (cmd->cmd) { 1491 case ETHTOOL_SRXFH: 1492 ret = gfar_set_hash_opts(priv, cmd); 1493 break; 1494 case ETHTOOL_SRXCLSRLINS: 1495 if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC && 1496 cmd->fs.ring_cookie >= priv->num_rx_queues) || 1497 cmd->fs.location >= MAX_FILER_IDX) { 1498 ret = -EINVAL; 1499 break; 1500 } 1501 ret = gfar_add_cls(priv, &cmd->fs); 1502 break; 1503 case ETHTOOL_SRXCLSRLDEL: 1504 ret = gfar_del_cls(priv, cmd->fs.location); 1505 break; 1506 default: 1507 ret = -EINVAL; 1508 } 1509 1510 mutex_unlock(&priv->rx_queue_access); 1511 1512 return ret; 1513 } 1514 1515 static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd, 1516 u32 *rule_locs) 1517 { 1518 struct gfar_private *priv = netdev_priv(dev); 1519 int ret = 0; 1520 1521 switch (cmd->cmd) { 1522 case ETHTOOL_GRXRINGS: 1523 cmd->data = priv->num_rx_queues; 1524 break; 1525 case ETHTOOL_GRXCLSRLCNT: 1526 cmd->rule_cnt = priv->rx_list.count; 1527 break; 1528 case ETHTOOL_GRXCLSRULE: 1529 ret = gfar_get_cls(priv, cmd); 1530 break; 1531 case ETHTOOL_GRXCLSRLALL: 1532 ret = gfar_get_cls_all(priv, cmd, rule_locs); 1533 break; 1534 default: 1535 ret = -EINVAL; 1536 break; 1537 } 1538 1539 return ret; 1540 } 1541 1542 int gfar_phc_index = -1; 1543 EXPORT_SYMBOL(gfar_phc_index); 1544 1545 static int gfar_get_ts_info(struct net_device *dev, 1546 struct ethtool_ts_info *info) 1547 { 1548 struct gfar_private *priv = netdev_priv(dev); 1549 1550 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) { 1551 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE | 1552 SOF_TIMESTAMPING_SOFTWARE; 1553 info->phc_index = -1; 1554 return 0; 1555 } 1556 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE | 1557 SOF_TIMESTAMPING_RX_HARDWARE | 1558 SOF_TIMESTAMPING_RAW_HARDWARE; 1559 info->phc_index = gfar_phc_index; 1560 info->tx_types = (1 << HWTSTAMP_TX_OFF) | 1561 (1 << HWTSTAMP_TX_ON); 1562 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | 1563 (1 << HWTSTAMP_FILTER_ALL); 1564 return 0; 1565 } 1566 1567 const struct ethtool_ops gfar_ethtool_ops = { 1568 .get_settings = gfar_gsettings, 1569 .set_settings = gfar_ssettings, 1570 .get_drvinfo = gfar_gdrvinfo, 1571 .get_regs_len = gfar_reglen, 1572 .get_regs = gfar_get_regs, 1573 .get_link = ethtool_op_get_link, 1574 .get_coalesce = gfar_gcoalesce, 1575 .set_coalesce = gfar_scoalesce, 1576 .get_ringparam = gfar_gringparam, 1577 .set_ringparam = gfar_sringparam, 1578 .get_pauseparam = gfar_gpauseparam, 1579 .set_pauseparam = gfar_spauseparam, 1580 .get_strings = gfar_gstrings, 1581 .get_sset_count = gfar_sset_count, 1582 .get_ethtool_stats = gfar_fill_stats, 1583 .get_msglevel = gfar_get_msglevel, 1584 .set_msglevel = gfar_set_msglevel, 1585 #ifdef CONFIG_PM 1586 .get_wol = gfar_get_wol, 1587 .set_wol = gfar_set_wol, 1588 #endif 1589 .set_rxnfc = gfar_set_nfc, 1590 .get_rxnfc = gfar_get_nfc, 1591 .get_ts_info = gfar_get_ts_info, 1592 }; 1593