drivers/net/ethernet/toshiba/ps3_gelic

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This source file includes following definitions.
gelic_card_set_irq_mask
gelic_card_rx_irq_on
gelic_card_rx_irq_off
gelic_card_get_ether_port_status
gelic_descr_get_status
gelic_card_set_link_mode
gelic_card_disable_txdmac
gelic_card_enable_rxdmac
gelic_card_disable_rxdmac
gelic_descr_set_status
gelic_card_reset_chain
gelic_card_up
gelic_card_down
gelic_card_free_chain
gelic_card_init_chain
gelic_descr_prepare_rx
gelic_card_release_rx_chain
gelic_card_fill_rx_chain
gelic_card_alloc_rx_skbs
gelic_descr_release_tx
gelic_card_stop_queues
gelic_card_wake_queues
gelic_card_release_tx_chain
gelic_net_set_multi
gelic_net_stop
gelic_card_get_next_tx_descr
gelic_descr_set_tx_cmdstat
gelic_put_vlan_tag
gelic_descr_prepare_tx
gelic_card_kick_txdma
gelic_net_xmit
gelic_net_pass_skb_up
gelic_card_decode_one_descr
gelic_net_poll
gelic_card_interrupt
gelic_net_poll_controller
gelic_net_open
gelic_net_get_drvinfo
gelic_ether_get_link_ksettings
gelic_ether_set_link_ksettings
gelic_net_get_wol
gelic_net_set_wol
gelic_net_tx_timeout_task
gelic_net_tx_timeout
gelic_ether_setup_netdev_ops
gelic_net_setup_netdev
gelic_alloc_card_net
gelic_card_get_vlan_info
ps3_gelic_driver_probe
ps3_gelic_driver_remove
ps3_gelic_driver_init
ps3_gelic_driver_exit
   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  PS3 gelic network driver.
   4  *
   5  * Copyright (C) 2007 Sony Computer Entertainment Inc.
   6  * Copyright 2006, 2007 Sony Corporation
   7  *
   8  * This file is based on: spider_net.c
   9  *
  10  * (C) Copyright IBM Corp. 2005
  11  *
  12  * Authors : Utz Bacher <utz.bacher@de.ibm.com>
  13  *           Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
  14  */
  15 
  16 #undef DEBUG
  17 
  18 #include <linux/interrupt.h>
  19 #include <linux/kernel.h>
  20 #include <linux/module.h>
  21 #include <linux/slab.h>
  22 
  23 #include <linux/etherdevice.h>
  24 #include <linux/ethtool.h>
  25 #include <linux/if_vlan.h>
  26 
  27 #include <linux/in.h>
  28 #include <linux/ip.h>
  29 #include <linux/tcp.h>
  30 
  31 #include <linux/dma-mapping.h>
  32 #include <net/checksum.h>
  33 #include <asm/firmware.h>
  34 #include <asm/ps3.h>
  35 #include <asm/lv1call.h>
  36 
  37 #include "ps3_gelic_net.h"
  38 #include "ps3_gelic_wireless.h"
  39 
  40 #define DRV_NAME "Gelic Network Driver"
  41 #define DRV_VERSION "2.0"
  42 
  43 MODULE_AUTHOR("SCE Inc.");
  44 MODULE_DESCRIPTION("Gelic Network driver");
  45 MODULE_LICENSE("GPL");
  46 
  47 
  48 /* set irq_mask */
  49 int gelic_card_set_irq_mask(struct gelic_card *card, u64 mask)
  50 {
  51         int status;
  52 
  53         status = lv1_net_set_interrupt_mask(bus_id(card), dev_id(card),
  54                                             mask, 0);
  55         if (status)
  56                 dev_info(ctodev(card),
  57                          "%s failed %d\n", __func__, status);
  58         return status;
  59 }
  60 
  61 static void gelic_card_rx_irq_on(struct gelic_card *card)
  62 {
  63         card->irq_mask |= GELIC_CARD_RXINT;
  64         gelic_card_set_irq_mask(card, card->irq_mask);
  65 }
  66 static void gelic_card_rx_irq_off(struct gelic_card *card)
  67 {
  68         card->irq_mask &= ~GELIC_CARD_RXINT;
  69         gelic_card_set_irq_mask(card, card->irq_mask);
  70 }
  71 
  72 static void gelic_card_get_ether_port_status(struct gelic_card *card,
  73                                              int inform)
  74 {
  75         u64 v2;
  76         struct net_device *ether_netdev;
  77 
  78         lv1_net_control(bus_id(card), dev_id(card),
  79                         GELIC_LV1_GET_ETH_PORT_STATUS,
  80                         GELIC_LV1_VLAN_TX_ETHERNET_0, 0, 0,
  81                         &card->ether_port_status, &v2);
  82 
  83         if (inform) {
  84                 ether_netdev = card->netdev[GELIC_PORT_ETHERNET_0];
  85                 if (card->ether_port_status & GELIC_LV1_ETHER_LINK_UP)
  86                         netif_carrier_on(ether_netdev);
  87                 else
  88                         netif_carrier_off(ether_netdev);
  89         }
  90 }
  91 
  92 /**
  93  * gelic_descr_get_status -- returns the status of a descriptor
  94  * @descr: descriptor to look at
  95  *
  96  * returns the status as in the dmac_cmd_status field of the descriptor
  97  */
  98 static enum gelic_descr_dma_status
  99 gelic_descr_get_status(struct gelic_descr *descr)
 100 {
 101         return be32_to_cpu(descr->dmac_cmd_status) & GELIC_DESCR_DMA_STAT_MASK;
 102 }
 103 
 104 static int gelic_card_set_link_mode(struct gelic_card *card, int mode)
 105 {
 106         int status;
 107         u64 v1, v2;
 108 
 109         status = lv1_net_control(bus_id(card), dev_id(card),
 110                                  GELIC_LV1_SET_NEGOTIATION_MODE,
 111                                  GELIC_LV1_PHY_ETHERNET_0, mode, 0, &v1, &v2);
 112         if (status) {
 113                 pr_info("%s: failed setting negotiation mode %d\n", __func__,
 114                         status);
 115                 return -EBUSY;
 116         }
 117 
 118         card->link_mode = mode;
 119         return 0;
 120 }
 121 
 122 /**
 123  * gelic_card_disable_txdmac - disables the transmit DMA controller
 124  * @card: card structure
 125  *
 126  * gelic_card_disable_txdmac terminates processing on the DMA controller by
 127  * turing off DMA and issuing a force end
 128  */
 129 static void gelic_card_disable_txdmac(struct gelic_card *card)
 130 {
 131         int status;
 132 
 133         /* this hvc blocks until the DMA in progress really stopped */
 134         status = lv1_net_stop_tx_dma(bus_id(card), dev_id(card));
 135         if (status)
 136                 dev_err(ctodev(card),
 137                         "lv1_net_stop_tx_dma failed, status=%d\n", status);
 138 }
 139 
 140 /**
 141  * gelic_card_enable_rxdmac - enables the receive DMA controller
 142  * @card: card structure
 143  *
 144  * gelic_card_enable_rxdmac enables the DMA controller by setting RX_DMA_EN
 145  * in the GDADMACCNTR register
 146  */
 147 static void gelic_card_enable_rxdmac(struct gelic_card *card)
 148 {
 149         int status;
 150 
 151 #ifdef DEBUG
 152         if (gelic_descr_get_status(card->rx_chain.head) !=
 153             GELIC_DESCR_DMA_CARDOWNED) {
 154                 printk(KERN_ERR "%s: status=%x\n", __func__,
 155                        be32_to_cpu(card->rx_chain.head->dmac_cmd_status));
 156                 printk(KERN_ERR "%s: nextphy=%x\n", __func__,
 157                        be32_to_cpu(card->rx_chain.head->next_descr_addr));
 158                 printk(KERN_ERR "%s: head=%p\n", __func__,
 159                        card->rx_chain.head);
 160         }
 161 #endif
 162         status = lv1_net_start_rx_dma(bus_id(card), dev_id(card),
 163                                 card->rx_chain.head->bus_addr, 0);
 164         if (status)
 165                 dev_info(ctodev(card),
 166                          "lv1_net_start_rx_dma failed, status=%d\n", status);
 167 }
 168 
 169 /**
 170  * gelic_card_disable_rxdmac - disables the receive DMA controller
 171  * @card: card structure
 172  *
 173  * gelic_card_disable_rxdmac terminates processing on the DMA controller by
 174  * turing off DMA and issuing a force end
 175  */
 176 static void gelic_card_disable_rxdmac(struct gelic_card *card)
 177 {
 178         int status;
 179 
 180         /* this hvc blocks until the DMA in progress really stopped */
 181         status = lv1_net_stop_rx_dma(bus_id(card), dev_id(card));
 182         if (status)
 183                 dev_err(ctodev(card),
 184                         "lv1_net_stop_rx_dma failed, %d\n", status);
 185 }
 186 
 187 /**
 188  * gelic_descr_set_status -- sets the status of a descriptor
 189  * @descr: descriptor to change
 190  * @status: status to set in the descriptor
 191  *
 192  * changes the status to the specified value. Doesn't change other bits
 193  * in the status
 194  */
 195 static void gelic_descr_set_status(struct gelic_descr *descr,
 196                                    enum gelic_descr_dma_status status)
 197 {
 198         descr->dmac_cmd_status = cpu_to_be32(status |
 199                         (be32_to_cpu(descr->dmac_cmd_status) &
 200                          ~GELIC_DESCR_DMA_STAT_MASK));
 201         /*
 202          * dma_cmd_status field is used to indicate whether the descriptor
 203          * is valid or not.
 204          * Usually caller of this function wants to inform that to the
 205          * hardware, so we assure here the hardware sees the change.
 206          */
 207         wmb();
 208 }
 209 
 210 /**
 211  * gelic_card_reset_chain - reset status of a descriptor chain
 212  * @card: card structure
 213  * @chain: address of chain
 214  * @start_descr: address of descriptor array
 215  *
 216  * Reset the status of dma descriptors to ready state
 217  * and re-initialize the hardware chain for later use
 218  */
 219 static void gelic_card_reset_chain(struct gelic_card *card,
 220                                    struct gelic_descr_chain *chain,
 221                                    struct gelic_descr *start_descr)
 222 {
 223         struct gelic_descr *descr;
 224 
 225         for (descr = start_descr; start_descr != descr->next; descr++) {
 226                 gelic_descr_set_status(descr, GELIC_DESCR_DMA_CARDOWNED);
 227                 descr->next_descr_addr = cpu_to_be32(descr->next->bus_addr);
 228         }
 229 
 230         chain->head = start_descr;
 231         chain->tail = (descr - 1);
 232 
 233         (descr - 1)->next_descr_addr = 0;
 234 }
 235 
 236 void gelic_card_up(struct gelic_card *card)
 237 {
 238         pr_debug("%s: called\n", __func__);
 239         mutex_lock(&card->updown_lock);
 240         if (atomic_inc_return(&card->users) == 1) {
 241                 pr_debug("%s: real do\n", __func__);
 242                 /* enable irq */
 243                 gelic_card_set_irq_mask(card, card->irq_mask);
 244                 /* start rx */
 245                 gelic_card_enable_rxdmac(card);
 246 
 247                 napi_enable(&card->napi);
 248         }
 249         mutex_unlock(&card->updown_lock);
 250         pr_debug("%s: done\n", __func__);
 251 }
 252 
 253 void gelic_card_down(struct gelic_card *card)
 254 {
 255         u64 mask;
 256         pr_debug("%s: called\n", __func__);
 257         mutex_lock(&card->updown_lock);
 258         if (atomic_dec_if_positive(&card->users) == 0) {
 259                 pr_debug("%s: real do\n", __func__);
 260                 napi_disable(&card->napi);
 261                 /*
 262                  * Disable irq. Wireless interrupts will
 263                  * be disabled later if any
 264                  */
 265                 mask = card->irq_mask & (GELIC_CARD_WLAN_EVENT_RECEIVED |
 266                                          GELIC_CARD_WLAN_COMMAND_COMPLETED);
 267                 gelic_card_set_irq_mask(card, mask);
 268                 /* stop rx */
 269                 gelic_card_disable_rxdmac(card);
 270                 gelic_card_reset_chain(card, &card->rx_chain,
 271                                        card->descr + GELIC_NET_TX_DESCRIPTORS);
 272                 /* stop tx */
 273                 gelic_card_disable_txdmac(card);
 274         }
 275         mutex_unlock(&card->updown_lock);
 276         pr_debug("%s: done\n", __func__);
 277 }
 278 
 279 /**
 280  * gelic_card_free_chain - free descriptor chain
 281  * @card: card structure
 282  * @descr_in: address of desc
 283  */
 284 static void gelic_card_free_chain(struct gelic_card *card,
 285                                   struct gelic_descr *descr_in)
 286 {
 287         struct gelic_descr *descr;
 288 
 289         for (descr = descr_in; descr && descr->bus_addr; descr = descr->next) {
 290                 dma_unmap_single(ctodev(card), descr->bus_addr,
 291                                  GELIC_DESCR_SIZE, DMA_BIDIRECTIONAL);
 292                 descr->bus_addr = 0;
 293         }
 294 }
 295 
 296 /**
 297  * gelic_card_init_chain - links descriptor chain
 298  * @card: card structure
 299  * @chain: address of chain
 300  * @start_descr: address of descriptor array
 301  * @no: number of descriptors
 302  *
 303  * we manage a circular list that mirrors the hardware structure,
 304  * except that the hardware uses bus addresses.
 305  *
 306  * returns 0 on success, <0 on failure
 307  */
 308 static int gelic_card_init_chain(struct gelic_card *card,
 309                                  struct gelic_descr_chain *chain,
 310                                  struct gelic_descr *start_descr, int no)
 311 {
 312         int i;
 313         struct gelic_descr *descr;
 314 
 315         descr = start_descr;
 316         memset(descr, 0, sizeof(*descr) * no);
 317 
 318         /* set up the hardware pointers in each descriptor */
 319         for (i = 0; i < no; i++, descr++) {
 320                 gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE);
 321                 descr->bus_addr =
 322                         dma_map_single(ctodev(card), descr,
 323                                        GELIC_DESCR_SIZE,
 324                                        DMA_BIDIRECTIONAL);
 325 
 326                 if (!descr->bus_addr)
 327                         goto iommu_error;
 328 
 329                 descr->next = descr + 1;
 330                 descr->prev = descr - 1;
 331         }
 332         /* make them as ring */
 333         (descr - 1)->next = start_descr;
 334         start_descr->prev = (descr - 1);
 335 
 336         /* chain bus addr of hw descriptor */
 337         descr = start_descr;
 338         for (i = 0; i < no; i++, descr++) {
 339                 descr->next_descr_addr = cpu_to_be32(descr->next->bus_addr);
 340         }
 341 
 342         chain->head = start_descr;
 343         chain->tail = start_descr;
 344 
 345         /* do not chain last hw descriptor */
 346         (descr - 1)->next_descr_addr = 0;
 347 
 348         return 0;
 349 
 350 iommu_error:
 351         for (i--, descr--; 0 <= i; i--, descr--)
 352                 if (descr->bus_addr)
 353                         dma_unmap_single(ctodev(card), descr->bus_addr,
 354                                          GELIC_DESCR_SIZE,
 355                                          DMA_BIDIRECTIONAL);
 356         return -ENOMEM;
 357 }
 358 
 359 /**
 360  * gelic_descr_prepare_rx - reinitializes a rx descriptor
 361  * @card: card structure
 362  * @descr: descriptor to re-init
 363  *
 364  * return 0 on success, <0 on failure
 365  *
 366  * allocates a new rx skb, iommu-maps it and attaches it to the descriptor.
 367  * Activate the descriptor state-wise
 368  */
 369 static int gelic_descr_prepare_rx(struct gelic_card *card,
 370                                   struct gelic_descr *descr)
 371 {
 372         int offset;
 373         unsigned int bufsize;
 374 
 375         if (gelic_descr_get_status(descr) !=  GELIC_DESCR_DMA_NOT_IN_USE)
 376                 dev_info(ctodev(card), "%s: ERROR status\n", __func__);
 377         /* we need to round up the buffer size to a multiple of 128 */
 378         bufsize = ALIGN(GELIC_NET_MAX_MTU, GELIC_NET_RXBUF_ALIGN);
 379 
 380         /* and we need to have it 128 byte aligned, therefore we allocate a
 381          * bit more */
 382         descr->skb = dev_alloc_skb(bufsize + GELIC_NET_RXBUF_ALIGN - 1);
 383         if (!descr->skb) {
 384                 descr->buf_addr = 0; /* tell DMAC don't touch memory */
 385                 dev_info(ctodev(card),
 386                          "%s:allocate skb failed !!\n", __func__);
 387                 return -ENOMEM;
 388         }
 389         descr->buf_size = cpu_to_be32(bufsize);
 390         descr->dmac_cmd_status = 0;
 391         descr->result_size = 0;
 392         descr->valid_size = 0;
 393         descr->data_error = 0;
 394 
 395         offset = ((unsigned long)descr->skb->data) &
 396                 (GELIC_NET_RXBUF_ALIGN - 1);
 397         if (offset)
 398                 skb_reserve(descr->skb, GELIC_NET_RXBUF_ALIGN - offset);
 399         /* io-mmu-map the skb */
 400         descr->buf_addr = cpu_to_be32(dma_map_single(ctodev(card),
 401                                                      descr->skb->data,
 402                                                      GELIC_NET_MAX_MTU,
 403                                                      DMA_FROM_DEVICE));
 404         if (!descr->buf_addr) {
 405                 dev_kfree_skb_any(descr->skb);
 406                 descr->skb = NULL;
 407                 dev_info(ctodev(card),
 408                          "%s:Could not iommu-map rx buffer\n", __func__);
 409                 gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE);
 410                 return -ENOMEM;
 411         } else {
 412                 gelic_descr_set_status(descr, GELIC_DESCR_DMA_CARDOWNED);
 413                 return 0;
 414         }
 415 }
 416 
 417 /**
 418  * gelic_card_release_rx_chain - free all skb of rx descr
 419  * @card: card structure
 420  *
 421  */
 422 static void gelic_card_release_rx_chain(struct gelic_card *card)
 423 {
 424         struct gelic_descr *descr = card->rx_chain.head;
 425 
 426         do {
 427                 if (descr->skb) {
 428                         dma_unmap_single(ctodev(card),
 429                                          be32_to_cpu(descr->buf_addr),
 430                                          descr->skb->len,
 431                                          DMA_FROM_DEVICE);
 432                         descr->buf_addr = 0;
 433                         dev_kfree_skb_any(descr->skb);
 434                         descr->skb = NULL;
 435                         gelic_descr_set_status(descr,
 436                                                GELIC_DESCR_DMA_NOT_IN_USE);
 437                 }
 438                 descr = descr->next;
 439         } while (descr != card->rx_chain.head);
 440 }
 441 
 442 /**
 443  * gelic_card_fill_rx_chain - fills descriptors/skbs in the rx chains
 444  * @card: card structure
 445  *
 446  * fills all descriptors in the rx chain: allocates skbs
 447  * and iommu-maps them.
 448  * returns 0 on success, < 0 on failure
 449  */
 450 static int gelic_card_fill_rx_chain(struct gelic_card *card)
 451 {
 452         struct gelic_descr *descr = card->rx_chain.head;
 453         int ret;
 454 
 455         do {
 456                 if (!descr->skb) {
 457                         ret = gelic_descr_prepare_rx(card, descr);
 458                         if (ret)
 459                                 goto rewind;
 460                 }
 461                 descr = descr->next;
 462         } while (descr != card->rx_chain.head);
 463 
 464         return 0;
 465 rewind:
 466         gelic_card_release_rx_chain(card);
 467         return ret;
 468 }
 469 
 470 /**
 471  * gelic_card_alloc_rx_skbs - allocates rx skbs in rx descriptor chains
 472  * @card: card structure
 473  *
 474  * returns 0 on success, < 0 on failure
 475  */
 476 static int gelic_card_alloc_rx_skbs(struct gelic_card *card)
 477 {
 478         struct gelic_descr_chain *chain;
 479         int ret;
 480         chain = &card->rx_chain;
 481         ret = gelic_card_fill_rx_chain(card);
 482         chain->tail = card->rx_top->prev; /* point to the last */
 483         return ret;
 484 }
 485 
 486 /**
 487  * gelic_descr_release_tx - processes a used tx descriptor
 488  * @card: card structure
 489  * @descr: descriptor to release
 490  *
 491  * releases a used tx descriptor (unmapping, freeing of skb)
 492  */
 493 static void gelic_descr_release_tx(struct gelic_card *card,
 494                                        struct gelic_descr *descr)
 495 {
 496         struct sk_buff *skb = descr->skb;
 497 
 498         BUG_ON(!(be32_to_cpu(descr->data_status) & GELIC_DESCR_TX_TAIL));
 499 
 500         dma_unmap_single(ctodev(card), be32_to_cpu(descr->buf_addr), skb->len,
 501                          DMA_TO_DEVICE);
 502         dev_kfree_skb_any(skb);
 503 
 504         descr->buf_addr = 0;
 505         descr->buf_size = 0;
 506         descr->next_descr_addr = 0;
 507         descr->result_size = 0;
 508         descr->valid_size = 0;
 509         descr->data_status = 0;
 510         descr->data_error = 0;
 511         descr->skb = NULL;
 512 
 513         /* set descr status */
 514         gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE);
 515 }
 516 
 517 static void gelic_card_stop_queues(struct gelic_card *card)
 518 {
 519         netif_stop_queue(card->netdev[GELIC_PORT_ETHERNET_0]);
 520 
 521         if (card->netdev[GELIC_PORT_WIRELESS])
 522                 netif_stop_queue(card->netdev[GELIC_PORT_WIRELESS]);
 523 }
 524 static void gelic_card_wake_queues(struct gelic_card *card)
 525 {
 526         netif_wake_queue(card->netdev[GELIC_PORT_ETHERNET_0]);
 527 
 528         if (card->netdev[GELIC_PORT_WIRELESS])
 529                 netif_wake_queue(card->netdev[GELIC_PORT_WIRELESS]);
 530 }
 531 /**
 532  * gelic_card_release_tx_chain - processes sent tx descriptors
 533  * @card: adapter structure
 534  * @stop: net_stop sequence
 535  *
 536  * releases the tx descriptors that gelic has finished with
 537  */
 538 static void gelic_card_release_tx_chain(struct gelic_card *card, int stop)
 539 {
 540         struct gelic_descr_chain *tx_chain;
 541         enum gelic_descr_dma_status status;
 542         struct net_device *netdev;
 543         int release = 0;
 544 
 545         for (tx_chain = &card->tx_chain;
 546              tx_chain->head != tx_chain->tail && tx_chain->tail;
 547              tx_chain->tail = tx_chain->tail->next) {
 548                 status = gelic_descr_get_status(tx_chain->tail);
 549                 netdev = tx_chain->tail->skb->dev;
 550                 switch (status) {
 551                 case GELIC_DESCR_DMA_RESPONSE_ERROR:
 552                 case GELIC_DESCR_DMA_PROTECTION_ERROR:
 553                 case GELIC_DESCR_DMA_FORCE_END:
 554                         if (printk_ratelimit())
 555                                 dev_info(ctodev(card),
 556                                          "%s: forcing end of tx descriptor " \
 557                                          "with status %x\n",
 558                                          __func__, status);
 559                         netdev->stats.tx_dropped++;
 560                         break;
 561 
 562                 case GELIC_DESCR_DMA_COMPLETE:
 563                         if (tx_chain->tail->skb) {
 564                                 netdev->stats.tx_packets++;
 565                                 netdev->stats.tx_bytes +=
 566                                         tx_chain->tail->skb->len;
 567                         }
 568                         break;
 569 
 570                 case GELIC_DESCR_DMA_CARDOWNED:
 571                         /* pending tx request */
 572                 default:
 573                         /* any other value (== GELIC_DESCR_DMA_NOT_IN_USE) */
 574                         if (!stop)
 575                                 goto out;
 576                 }
 577                 gelic_descr_release_tx(card, tx_chain->tail);
 578                 release ++;
 579         }
 580 out:
 581         if (!stop && release)
 582                 gelic_card_wake_queues(card);
 583 }
 584 
 585 /**
 586  * gelic_net_set_multi - sets multicast addresses and promisc flags
 587  * @netdev: interface device structure
 588  *
 589  * gelic_net_set_multi configures multicast addresses as needed for the
 590  * netdev interface. It also sets up multicast, allmulti and promisc
 591  * flags appropriately
 592  */
 593 void gelic_net_set_multi(struct net_device *netdev)
 594 {
 595         struct gelic_card *card = netdev_card(netdev);
 596         struct netdev_hw_addr *ha;
 597         unsigned int i;
 598         uint8_t *p;
 599         u64 addr;
 600         int status;
 601 
 602         /* clear all multicast address */
 603         status = lv1_net_remove_multicast_address(bus_id(card), dev_id(card),
 604                                                   0, 1);
 605         if (status)
 606                 dev_err(ctodev(card),
 607                         "lv1_net_remove_multicast_address failed %d\n",
 608                         status);
 609         /* set broadcast address */
 610         status = lv1_net_add_multicast_address(bus_id(card), dev_id(card),
 611                                                GELIC_NET_BROADCAST_ADDR, 0);
 612         if (status)
 613                 dev_err(ctodev(card),
 614                         "lv1_net_add_multicast_address failed, %d\n",
 615                         status);
 616 
 617         if ((netdev->flags & IFF_ALLMULTI) ||
 618             (netdev_mc_count(netdev) > GELIC_NET_MC_COUNT_MAX)) {
 619                 status = lv1_net_add_multicast_address(bus_id(card),
 620                                                        dev_id(card),
 621                                                        0, 1);
 622                 if (status)
 623                         dev_err(ctodev(card),
 624                                 "lv1_net_add_multicast_address failed, %d\n",
 625                                 status);
 626                 return;
 627         }
 628 
 629         /* set multicast addresses */
 630         netdev_for_each_mc_addr(ha, netdev) {
 631                 addr = 0;
 632                 p = ha->addr;
 633                 for (i = 0; i < ETH_ALEN; i++) {
 634                         addr <<= 8;
 635                         addr |= *p++;
 636                 }
 637                 status = lv1_net_add_multicast_address(bus_id(card),
 638                                                        dev_id(card),
 639                                                        addr, 0);
 640                 if (status)
 641                         dev_err(ctodev(card),
 642                                 "lv1_net_add_multicast_address failed, %d\n",
 643                                 status);
 644         }
 645 }
 646 
 647 /**
 648  * gelic_net_stop - called upon ifconfig down
 649  * @netdev: interface device structure
 650  *
 651  * always returns 0
 652  */
 653 int gelic_net_stop(struct net_device *netdev)
 654 {
 655         struct gelic_card *card;
 656 
 657         pr_debug("%s: start\n", __func__);
 658 
 659         netif_stop_queue(netdev);
 660         netif_carrier_off(netdev);
 661 
 662         card = netdev_card(netdev);
 663         gelic_card_down(card);
 664 
 665         pr_debug("%s: done\n", __func__);
 666         return 0;
 667 }
 668 
 669 /**
 670  * gelic_card_get_next_tx_descr - returns the next available tx descriptor
 671  * @card: device structure to get descriptor from
 672  *
 673  * returns the address of the next descriptor, or NULL if not available.
 674  */
 675 static struct gelic_descr *
 676 gelic_card_get_next_tx_descr(struct gelic_card *card)
 677 {
 678         if (!card->tx_chain.head)
 679                 return NULL;
 680         /*  see if the next descriptor is free */
 681         if (card->tx_chain.tail != card->tx_chain.head->next &&
 682             gelic_descr_get_status(card->tx_chain.head) ==
 683             GELIC_DESCR_DMA_NOT_IN_USE)
 684                 return card->tx_chain.head;
 685         else
 686                 return NULL;
 687 
 688 }
 689 
 690 /**
 691  * gelic_net_set_txdescr_cmdstat - sets the tx descriptor command field
 692  * @descr: descriptor structure to fill out
 693  * @skb: packet to consider
 694  *
 695  * fills out the command and status field of the descriptor structure,
 696  * depending on hardware checksum settings. This function assumes a wmb()
 697  * has executed before.
 698  */
 699 static void gelic_descr_set_tx_cmdstat(struct gelic_descr *descr,
 700                                        struct sk_buff *skb)
 701 {
 702         if (skb->ip_summed != CHECKSUM_PARTIAL)
 703                 descr->dmac_cmd_status =
 704                         cpu_to_be32(GELIC_DESCR_DMA_CMD_NO_CHKSUM |
 705                                     GELIC_DESCR_TX_DMA_FRAME_TAIL);
 706         else {
 707                 /* is packet ip?
 708                  * if yes: tcp? udp? */
 709                 if (skb->protocol == htons(ETH_P_IP)) {
 710                         if (ip_hdr(skb)->protocol == IPPROTO_TCP)
 711                                 descr->dmac_cmd_status =
 712                                 cpu_to_be32(GELIC_DESCR_DMA_CMD_TCP_CHKSUM |
 713                                             GELIC_DESCR_TX_DMA_FRAME_TAIL);
 714 
 715                         else if (ip_hdr(skb)->protocol == IPPROTO_UDP)
 716                                 descr->dmac_cmd_status =
 717                                 cpu_to_be32(GELIC_DESCR_DMA_CMD_UDP_CHKSUM |
 718                                             GELIC_DESCR_TX_DMA_FRAME_TAIL);
 719                         else    /*
 720                                  * the stack should checksum non-tcp and non-udp
 721                                  * packets on his own: NETIF_F_IP_CSUM
 722                                  */
 723                                 descr->dmac_cmd_status =
 724                                 cpu_to_be32(GELIC_DESCR_DMA_CMD_NO_CHKSUM |
 725                                             GELIC_DESCR_TX_DMA_FRAME_TAIL);
 726                 }
 727         }
 728 }
 729 
 730 static struct sk_buff *gelic_put_vlan_tag(struct sk_buff *skb,
 731                                                  unsigned short tag)
 732 {
 733         struct vlan_ethhdr *veth;
 734         static unsigned int c;
 735 
 736         if (skb_headroom(skb) < VLAN_HLEN) {
 737                 struct sk_buff *sk_tmp = skb;
 738                 pr_debug("%s: hd=%d c=%ud\n", __func__, skb_headroom(skb), c);
 739                 skb = skb_realloc_headroom(sk_tmp, VLAN_HLEN);
 740                 if (!skb)
 741                         return NULL;
 742                 dev_kfree_skb_any(sk_tmp);
 743         }
 744         veth = skb_push(skb, VLAN_HLEN);
 745 
 746         /* Move the mac addresses to the top of buffer */
 747         memmove(skb->data, skb->data + VLAN_HLEN, 2 * ETH_ALEN);
 748 
 749         veth->h_vlan_proto = cpu_to_be16(ETH_P_8021Q);
 750         veth->h_vlan_TCI = htons(tag);
 751 
 752         return skb;
 753 }
 754 
 755 /**
 756  * gelic_descr_prepare_tx - setup a descriptor for sending packets
 757  * @card: card structure
 758  * @descr: descriptor structure
 759  * @skb: packet to use
 760  *
 761  * returns 0 on success, <0 on failure.
 762  *
 763  */
 764 static int gelic_descr_prepare_tx(struct gelic_card *card,
 765                                   struct gelic_descr *descr,
 766                                   struct sk_buff *skb)
 767 {
 768         dma_addr_t buf;
 769 
 770         if (card->vlan_required) {
 771                 struct sk_buff *skb_tmp;
 772                 enum gelic_port_type type;
 773 
 774                 type = netdev_port(skb->dev)->type;
 775                 skb_tmp = gelic_put_vlan_tag(skb,
 776                                              card->vlan[type].tx);
 777                 if (!skb_tmp)
 778                         return -ENOMEM;
 779                 skb = skb_tmp;
 780         }
 781 
 782         buf = dma_map_single(ctodev(card), skb->data, skb->len, DMA_TO_DEVICE);
 783 
 784         if (!buf) {
 785                 dev_err(ctodev(card),
 786                         "dma map 2 failed (%p, %i). Dropping packet\n",
 787                         skb->data, skb->len);
 788                 return -ENOMEM;
 789         }
 790 
 791         descr->buf_addr = cpu_to_be32(buf);
 792         descr->buf_size = cpu_to_be32(skb->len);
 793         descr->skb = skb;
 794         descr->data_status = 0;
 795         descr->next_descr_addr = 0; /* terminate hw descr */
 796         gelic_descr_set_tx_cmdstat(descr, skb);
 797 
 798         /* bump free descriptor pointer */
 799         card->tx_chain.head = descr->next;
 800         return 0;
 801 }
 802 
 803 /**
 804  * gelic_card_kick_txdma - enables TX DMA processing
 805  * @card: card structure
 806  * @descr: descriptor address to enable TX processing at
 807  *
 808  */
 809 static int gelic_card_kick_txdma(struct gelic_card *card,
 810                                  struct gelic_descr *descr)
 811 {
 812         int status = 0;
 813 
 814         if (card->tx_dma_progress)
 815                 return 0;
 816 
 817         if (gelic_descr_get_status(descr) == GELIC_DESCR_DMA_CARDOWNED) {
 818                 card->tx_dma_progress = 1;
 819                 status = lv1_net_start_tx_dma(bus_id(card), dev_id(card),
 820                                               descr->bus_addr, 0);
 821                 if (status) {
 822                         card->tx_dma_progress = 0;
 823                         dev_info(ctodev(card), "lv1_net_start_txdma failed," \
 824                                  "status=%d\n", status);
 825                 }
 826         }
 827         return status;
 828 }
 829 
 830 /**
 831  * gelic_net_xmit - transmits a frame over the device
 832  * @skb: packet to send out
 833  * @netdev: interface device structure
 834  *
 835  * returns NETDEV_TX_OK on success, NETDEV_TX_BUSY on failure
 836  */
 837 netdev_tx_t gelic_net_xmit(struct sk_buff *skb, struct net_device *netdev)
 838 {
 839         struct gelic_card *card = netdev_card(netdev);
 840         struct gelic_descr *descr;
 841         int result;
 842         unsigned long flags;
 843 
 844         spin_lock_irqsave(&card->tx_lock, flags);
 845 
 846         gelic_card_release_tx_chain(card, 0);
 847 
 848         descr = gelic_card_get_next_tx_descr(card);
 849         if (!descr) {
 850                 /*
 851                  * no more descriptors free
 852                  */
 853                 gelic_card_stop_queues(card);
 854                 spin_unlock_irqrestore(&card->tx_lock, flags);
 855                 return NETDEV_TX_BUSY;
 856         }
 857 
 858         result = gelic_descr_prepare_tx(card, descr, skb);
 859         if (result) {
 860                 /*
 861                  * DMA map failed.  As chances are that failure
 862                  * would continue, just release skb and return
 863                  */
 864                 netdev->stats.tx_dropped++;
 865                 dev_kfree_skb_any(skb);
 866                 spin_unlock_irqrestore(&card->tx_lock, flags);
 867                 return NETDEV_TX_OK;
 868         }
 869         /*
 870          * link this prepared descriptor to previous one
 871          * to achieve high performance
 872          */
 873         descr->prev->next_descr_addr = cpu_to_be32(descr->bus_addr);
 874         /*
 875          * as hardware descriptor is modified in the above lines,
 876          * ensure that the hardware sees it
 877          */
 878         wmb();
 879         if (gelic_card_kick_txdma(card, descr)) {
 880                 /*
 881                  * kick failed.
 882                  * release descriptor which was just prepared
 883                  */
 884                 netdev->stats.tx_dropped++;
 885                 /* don't trigger BUG_ON() in gelic_descr_release_tx */
 886                 descr->data_status = cpu_to_be32(GELIC_DESCR_TX_TAIL);
 887                 gelic_descr_release_tx(card, descr);
 888                 /* reset head */
 889                 card->tx_chain.head = descr;
 890                 /* reset hw termination */
 891                 descr->prev->next_descr_addr = 0;
 892                 dev_info(ctodev(card), "%s: kick failure\n", __func__);
 893         }
 894 
 895         spin_unlock_irqrestore(&card->tx_lock, flags);
 896         return NETDEV_TX_OK;
 897 }
 898 
 899 /**
 900  * gelic_net_pass_skb_up - takes an skb from a descriptor and passes it on
 901  * @descr: descriptor to process
 902  * @card: card structure
 903  * @netdev: net_device structure to be passed packet
 904  *
 905  * iommu-unmaps the skb, fills out skb structure and passes the data to the
 906  * stack. The descriptor state is not changed.
 907  */
 908 static void gelic_net_pass_skb_up(struct gelic_descr *descr,
 909                                   struct gelic_card *card,
 910                                   struct net_device *netdev)
 911 
 912 {
 913         struct sk_buff *skb = descr->skb;
 914         u32 data_status, data_error;
 915 
 916         data_status = be32_to_cpu(descr->data_status);
 917         data_error = be32_to_cpu(descr->data_error);
 918         /* unmap skb buffer */
 919         dma_unmap_single(ctodev(card), be32_to_cpu(descr->buf_addr),
 920                          GELIC_NET_MAX_MTU,
 921                          DMA_FROM_DEVICE);
 922 
 923         skb_put(skb, be32_to_cpu(descr->valid_size)?
 924                 be32_to_cpu(descr->valid_size) :
 925                 be32_to_cpu(descr->result_size));
 926         if (!descr->valid_size)
 927                 dev_info(ctodev(card), "buffer full %x %x %x\n",
 928                          be32_to_cpu(descr->result_size),
 929                          be32_to_cpu(descr->buf_size),
 930                          be32_to_cpu(descr->dmac_cmd_status));
 931 
 932         descr->skb = NULL;
 933         /*
 934          * the card put 2 bytes vlan tag in front
 935          * of the ethernet frame
 936          */
 937         skb_pull(skb, 2);
 938         skb->protocol = eth_type_trans(skb, netdev);
 939 
 940         /* checksum offload */
 941         if (netdev->features & NETIF_F_RXCSUM) {
 942                 if ((data_status & GELIC_DESCR_DATA_STATUS_CHK_MASK) &&
 943                     (!(data_error & GELIC_DESCR_DATA_ERROR_CHK_MASK)))
 944                         skb->ip_summed = CHECKSUM_UNNECESSARY;
 945                 else
 946                         skb_checksum_none_assert(skb);
 947         } else
 948                 skb_checksum_none_assert(skb);
 949 
 950         /* update netdevice statistics */
 951         netdev->stats.rx_packets++;
 952         netdev->stats.rx_bytes += skb->len;
 953 
 954         /* pass skb up to stack */
 955         netif_receive_skb(skb);
 956 }
 957 
 958 /**
 959  * gelic_card_decode_one_descr - processes an rx descriptor
 960  * @card: card structure
 961  *
 962  * returns 1 if a packet has been sent to the stack, otherwise 0
 963  *
 964  * processes an rx descriptor by iommu-unmapping the data buffer and passing
 965  * the packet up to the stack
 966  */
 967 static int gelic_card_decode_one_descr(struct gelic_card *card)
 968 {
 969         enum gelic_descr_dma_status status;
 970         struct gelic_descr_chain *chain = &card->rx_chain;
 971         struct gelic_descr *descr = chain->head;
 972         struct net_device *netdev = NULL;
 973         int dmac_chain_ended;
 974 
 975         status = gelic_descr_get_status(descr);
 976 
 977         if (status == GELIC_DESCR_DMA_CARDOWNED)
 978                 return 0;
 979 
 980         if (status == GELIC_DESCR_DMA_NOT_IN_USE) {
 981                 dev_dbg(ctodev(card), "dormant descr? %p\n", descr);
 982                 return 0;
 983         }
 984 
 985         /* netdevice select */
 986         if (card->vlan_required) {
 987                 unsigned int i;
 988                 u16 vid;
 989                 vid = *(u16 *)(descr->skb->data) & VLAN_VID_MASK;
 990                 for (i = 0; i < GELIC_PORT_MAX; i++) {
 991                         if (card->vlan[i].rx == vid) {
 992                                 netdev = card->netdev[i];
 993                                 break;
 994                         }
 995                 }
 996                 if (GELIC_PORT_MAX <= i) {
 997                         pr_info("%s: unknown packet vid=%x\n", __func__, vid);
 998                         goto refill;
 999                 }
1000         } else
1001                 netdev = card->netdev[GELIC_PORT_ETHERNET_0];
1002 
1003         if ((status == GELIC_DESCR_DMA_RESPONSE_ERROR) ||
1004             (status == GELIC_DESCR_DMA_PROTECTION_ERROR) ||
1005             (status == GELIC_DESCR_DMA_FORCE_END)) {
1006                 dev_info(ctodev(card), "dropping RX descriptor with state %x\n",
1007                          status);
1008                 netdev->stats.rx_dropped++;
1009                 goto refill;
1010         }
1011 
1012         if (status == GELIC_DESCR_DMA_BUFFER_FULL) {
1013                 /*
1014                  * Buffer full would occur if and only if
1015                  * the frame length was longer than the size of this
1016                  * descriptor's buffer.  If the frame length was equal
1017                  * to or shorter than buffer'size, FRAME_END condition
1018                  * would occur.
1019                  * Anyway this frame was longer than the MTU,
1020                  * just drop it.
1021                  */
1022                 dev_info(ctodev(card), "overlength frame\n");
1023                 goto refill;
1024         }
1025         /*
1026          * descriptors any other than FRAME_END here should
1027          * be treated as error.
1028          */
1029         if (status != GELIC_DESCR_DMA_FRAME_END) {
1030                 dev_dbg(ctodev(card), "RX descriptor with state %x\n",
1031                         status);
1032                 goto refill;
1033         }
1034 
1035         /* ok, we've got a packet in descr */
1036         gelic_net_pass_skb_up(descr, card, netdev);
1037 refill:
1038 
1039         /* is the current descriptor terminated with next_descr == NULL? */
1040         dmac_chain_ended =
1041                 be32_to_cpu(descr->dmac_cmd_status) &
1042                 GELIC_DESCR_RX_DMA_CHAIN_END;
1043         /*
1044          * So that always DMAC can see the end
1045          * of the descriptor chain to avoid
1046          * from unwanted DMAC overrun.
1047          */
1048         descr->next_descr_addr = 0;
1049 
1050         /* change the descriptor state: */
1051         gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE);
1052 
1053         /*
1054          * this call can fail, but for now, just leave this
1055          * descriptor without skb
1056          */
1057         gelic_descr_prepare_rx(card, descr);
1058 
1059         chain->tail = descr;
1060         chain->head = descr->next;
1061 
1062         /*
1063          * Set this descriptor the end of the chain.
1064          */
1065         descr->prev->next_descr_addr = cpu_to_be32(descr->bus_addr);
1066 
1067         /*
1068          * If dmac chain was met, DMAC stopped.
1069          * thus re-enable it
1070          */
1071 
1072         if (dmac_chain_ended)
1073                 gelic_card_enable_rxdmac(card);
1074 
1075         return 1;
1076 }
1077 
1078 /**
1079  * gelic_net_poll - NAPI poll function called by the stack to return packets
1080  * @napi: napi structure
1081  * @budget: number of packets we can pass to the stack at most
1082  *
1083  * returns the number of the processed packets
1084  *
1085  */
1086 static int gelic_net_poll(struct napi_struct *napi, int budget)
1087 {
1088         struct gelic_card *card = container_of(napi, struct gelic_card, napi);
1089         int packets_done = 0;
1090 
1091         while (packets_done < budget) {
1092                 if (!gelic_card_decode_one_descr(card))
1093                         break;
1094 
1095                 packets_done++;
1096         }
1097 
1098         if (packets_done < budget) {
1099                 napi_complete_done(napi, packets_done);
1100                 gelic_card_rx_irq_on(card);
1101         }
1102         return packets_done;
1103 }
1104 
1105 /**
1106  * gelic_card_interrupt - event handler for gelic_net
1107  */
1108 static irqreturn_t gelic_card_interrupt(int irq, void *ptr)
1109 {
1110         unsigned long flags;
1111         struct gelic_card *card = ptr;
1112         u64 status;
1113 
1114         status = card->irq_status;
1115 
1116         if (!status)
1117                 return IRQ_NONE;
1118 
1119         status &= card->irq_mask;
1120 
1121         if (status & GELIC_CARD_RXINT) {
1122                 gelic_card_rx_irq_off(card);
1123                 napi_schedule(&card->napi);
1124         }
1125 
1126         if (status & GELIC_CARD_TXINT) {
1127                 spin_lock_irqsave(&card->tx_lock, flags);
1128                 card->tx_dma_progress = 0;
1129                 gelic_card_release_tx_chain(card, 0);
1130                 /* kick outstanding tx descriptor if any */
1131                 gelic_card_kick_txdma(card, card->tx_chain.tail);
1132                 spin_unlock_irqrestore(&card->tx_lock, flags);
1133         }
1134 
1135         /* ether port status changed */
1136         if (status & GELIC_CARD_PORT_STATUS_CHANGED)
1137                 gelic_card_get_ether_port_status(card, 1);
1138 
1139 #ifdef CONFIG_GELIC_WIRELESS
1140         if (status & (GELIC_CARD_WLAN_EVENT_RECEIVED |
1141                       GELIC_CARD_WLAN_COMMAND_COMPLETED))
1142                 gelic_wl_interrupt(card->netdev[GELIC_PORT_WIRELESS], status);
1143 #endif
1144 
1145         return IRQ_HANDLED;
1146 }
1147 
1148 #ifdef CONFIG_NET_POLL_CONTROLLER
1149 /**
1150  * gelic_net_poll_controller - artificial interrupt for netconsole etc.
1151  * @netdev: interface device structure
1152  *
1153  * see Documentation/networking/netconsole.txt
1154  */
1155 void gelic_net_poll_controller(struct net_device *netdev)
1156 {
1157         struct gelic_card *card = netdev_card(netdev);
1158 
1159         gelic_card_set_irq_mask(card, 0);
1160         gelic_card_interrupt(netdev->irq, netdev);
1161         gelic_card_set_irq_mask(card, card->irq_mask);
1162 }
1163 #endif /* CONFIG_NET_POLL_CONTROLLER */
1164 
1165 /**
1166  * gelic_net_open - called upon ifconfig up
1167  * @netdev: interface device structure
1168  *
1169  * returns 0 on success, <0 on failure
1170  *
1171  * gelic_net_open allocates all the descriptors and memory needed for
1172  * operation, sets up multicast list and enables interrupts
1173  */
1174 int gelic_net_open(struct net_device *netdev)
1175 {
1176         struct gelic_card *card = netdev_card(netdev);
1177 
1178         dev_dbg(ctodev(card), " -> %s %p\n", __func__, netdev);
1179 
1180         gelic_card_up(card);
1181 
1182         netif_start_queue(netdev);
1183         gelic_card_get_ether_port_status(card, 1);
1184 
1185         dev_dbg(ctodev(card), " <- %s\n", __func__);
1186         return 0;
1187 }
1188 
1189 void gelic_net_get_drvinfo(struct net_device *netdev,
1190                            struct ethtool_drvinfo *info)
1191 {
1192         strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
1193         strlcpy(info->version, DRV_VERSION, sizeof(info->version));
1194 }
1195 
1196 static int gelic_ether_get_link_ksettings(struct net_device *netdev,
1197                                           struct ethtool_link_ksettings *cmd)
1198 {
1199         struct gelic_card *card = netdev_card(netdev);
1200         u32 supported, advertising;
1201 
1202         gelic_card_get_ether_port_status(card, 0);
1203 
1204         if (card->ether_port_status & GELIC_LV1_ETHER_FULL_DUPLEX)
1205                 cmd->base.duplex = DUPLEX_FULL;
1206         else
1207                 cmd->base.duplex = DUPLEX_HALF;
1208 
1209         switch (card->ether_port_status & GELIC_LV1_ETHER_SPEED_MASK) {
1210         case GELIC_LV1_ETHER_SPEED_10:
1211                 cmd->base.speed = SPEED_10;
1212                 break;
1213         case GELIC_LV1_ETHER_SPEED_100:
1214                 cmd->base.speed = SPEED_100;
1215                 break;
1216         case GELIC_LV1_ETHER_SPEED_1000:
1217                 cmd->base.speed = SPEED_1000;
1218                 break;
1219         default:
1220                 pr_info("%s: speed unknown\n", __func__);
1221                 cmd->base.speed = SPEED_10;
1222                 break;
1223         }
1224 
1225         supported = SUPPORTED_TP | SUPPORTED_Autoneg |
1226                         SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
1227                         SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
1228                         SUPPORTED_1000baseT_Full;
1229         advertising = supported;
1230         if (card->link_mode & GELIC_LV1_ETHER_AUTO_NEG) {
1231                 cmd->base.autoneg = AUTONEG_ENABLE;
1232         } else {
1233                 cmd->base.autoneg = AUTONEG_DISABLE;
1234                 advertising &= ~ADVERTISED_Autoneg;
1235         }
1236         cmd->base.port = PORT_TP;
1237 
1238         ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
1239                                                 supported);
1240         ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
1241                                                 advertising);
1242 
1243         return 0;
1244 }
1245 
1246 static int
1247 gelic_ether_set_link_ksettings(struct net_device *netdev,
1248                                const struct ethtool_link_ksettings *cmd)
1249 {
1250         struct gelic_card *card = netdev_card(netdev);
1251         u64 mode;
1252         int ret;
1253 
1254         if (cmd->base.autoneg == AUTONEG_ENABLE) {
1255                 mode = GELIC_LV1_ETHER_AUTO_NEG;
1256         } else {
1257                 switch (cmd->base.speed) {
1258                 case SPEED_10:
1259                         mode = GELIC_LV1_ETHER_SPEED_10;
1260                         break;
1261                 case SPEED_100:
1262                         mode = GELIC_LV1_ETHER_SPEED_100;
1263                         break;
1264                 case SPEED_1000:
1265                         mode = GELIC_LV1_ETHER_SPEED_1000;
1266                         break;
1267                 default:
1268                         return -EINVAL;
1269                 }
1270                 if (cmd->base.duplex == DUPLEX_FULL) {
1271                         mode |= GELIC_LV1_ETHER_FULL_DUPLEX;
1272                 } else if (cmd->base.speed == SPEED_1000) {
1273                         pr_info("1000 half duplex is not supported.\n");
1274                         return -EINVAL;
1275                 }
1276         }
1277 
1278         ret = gelic_card_set_link_mode(card, mode);
1279 
1280         if (ret)
1281                 return ret;
1282 
1283         return 0;
1284 }
1285 
1286 static void gelic_net_get_wol(struct net_device *netdev,
1287                               struct ethtool_wolinfo *wol)
1288 {
1289         if (0 <= ps3_compare_firmware_version(2, 2, 0))
1290                 wol->supported = WAKE_MAGIC;
1291         else
1292                 wol->supported = 0;
1293 
1294         wol->wolopts = ps3_sys_manager_get_wol() ? wol->supported : 0;
1295         memset(&wol->sopass, 0, sizeof(wol->sopass));
1296 }
1297 static int gelic_net_set_wol(struct net_device *netdev,
1298                              struct ethtool_wolinfo *wol)
1299 {
1300         int status;
1301         struct gelic_card *card;
1302         u64 v1, v2;
1303 
1304         if (ps3_compare_firmware_version(2, 2, 0) < 0 ||
1305             !capable(CAP_NET_ADMIN))
1306                 return -EPERM;
1307 
1308         if (wol->wolopts & ~WAKE_MAGIC)
1309                 return -EINVAL;
1310 
1311         card = netdev_card(netdev);
1312         if (wol->wolopts & WAKE_MAGIC) {
1313                 status = lv1_net_control(bus_id(card), dev_id(card),
1314                                          GELIC_LV1_SET_WOL,
1315                                          GELIC_LV1_WOL_MAGIC_PACKET,
1316                                          0, GELIC_LV1_WOL_MP_ENABLE,
1317                                          &v1, &v2);
1318                 if (status) {
1319                         pr_info("%s: enabling WOL failed %d\n", __func__,
1320                                 status);
1321                         status = -EIO;
1322                         goto done;
1323                 }
1324                 status = lv1_net_control(bus_id(card), dev_id(card),
1325                                          GELIC_LV1_SET_WOL,
1326                                          GELIC_LV1_WOL_ADD_MATCH_ADDR,
1327                                          0, GELIC_LV1_WOL_MATCH_ALL,
1328                                          &v1, &v2);
1329                 if (!status)
1330                         ps3_sys_manager_set_wol(1);
1331                 else {
1332                         pr_info("%s: enabling WOL filter failed %d\n",
1333                                 __func__, status);
1334                         status = -EIO;
1335                 }
1336         } else {
1337                 status = lv1_net_control(bus_id(card), dev_id(card),
1338                                          GELIC_LV1_SET_WOL,
1339                                          GELIC_LV1_WOL_MAGIC_PACKET,
1340                                          0, GELIC_LV1_WOL_MP_DISABLE,
1341                                          &v1, &v2);
1342                 if (status) {
1343                         pr_info("%s: disabling WOL failed %d\n", __func__,
1344                                 status);
1345                         status = -EIO;
1346                         goto done;
1347                 }
1348                 status = lv1_net_control(bus_id(card), dev_id(card),
1349                                          GELIC_LV1_SET_WOL,
1350                                          GELIC_LV1_WOL_DELETE_MATCH_ADDR,
1351                                          0, GELIC_LV1_WOL_MATCH_ALL,
1352                                          &v1, &v2);
1353                 if (!status)
1354                         ps3_sys_manager_set_wol(0);
1355                 else {
1356                         pr_info("%s: removing WOL filter failed %d\n",
1357                                 __func__, status);
1358                         status = -EIO;
1359                 }
1360         }
1361 done:
1362         return status;
1363 }
1364 
1365 static const struct ethtool_ops gelic_ether_ethtool_ops = {
1366         .get_drvinfo    = gelic_net_get_drvinfo,
1367         .get_link       = ethtool_op_get_link,
1368         .get_wol        = gelic_net_get_wol,
1369         .set_wol        = gelic_net_set_wol,
1370         .get_link_ksettings = gelic_ether_get_link_ksettings,
1371         .set_link_ksettings = gelic_ether_set_link_ksettings,
1372 };
1373 
1374 /**
1375  * gelic_net_tx_timeout_task - task scheduled by the watchdog timeout
1376  * function (to be called not under interrupt status)
1377  * @work: work is context of tx timout task
1378  *
1379  * called as task when tx hangs, resets interface (if interface is up)
1380  */
1381 static void gelic_net_tx_timeout_task(struct work_struct *work)
1382 {
1383         struct gelic_card *card =
1384                 container_of(work, struct gelic_card, tx_timeout_task);
1385         struct net_device *netdev = card->netdev[GELIC_PORT_ETHERNET_0];
1386 
1387         dev_info(ctodev(card), "%s:Timed out. Restarting...\n", __func__);
1388 
1389         if (!(netdev->flags & IFF_UP))
1390                 goto out;
1391 
1392         netif_device_detach(netdev);
1393         gelic_net_stop(netdev);
1394 
1395         gelic_net_open(netdev);
1396         netif_device_attach(netdev);
1397 
1398 out:
1399         atomic_dec(&card->tx_timeout_task_counter);
1400 }
1401 
1402 /**
1403  * gelic_net_tx_timeout - called when the tx timeout watchdog kicks in.
1404  * @netdev: interface device structure
1405  *
1406  * called, if tx hangs. Schedules a task that resets the interface
1407  */
1408 void gelic_net_tx_timeout(struct net_device *netdev)
1409 {
1410         struct gelic_card *card;
1411 
1412         card = netdev_card(netdev);
1413         atomic_inc(&card->tx_timeout_task_counter);
1414         if (netdev->flags & IFF_UP)
1415                 schedule_work(&card->tx_timeout_task);
1416         else
1417                 atomic_dec(&card->tx_timeout_task_counter);
1418 }
1419 
1420 static const struct net_device_ops gelic_netdevice_ops = {
1421         .ndo_open = gelic_net_open,
1422         .ndo_stop = gelic_net_stop,
1423         .ndo_start_xmit = gelic_net_xmit,
1424         .ndo_set_rx_mode = gelic_net_set_multi,
1425         .ndo_tx_timeout = gelic_net_tx_timeout,
1426         .ndo_set_mac_address = eth_mac_addr,
1427         .ndo_validate_addr = eth_validate_addr,
1428 #ifdef CONFIG_NET_POLL_CONTROLLER
1429         .ndo_poll_controller = gelic_net_poll_controller,
1430 #endif
1431 };
1432 
1433 /**
1434  * gelic_ether_setup_netdev_ops - initialization of net_device operations
1435  * @netdev: net_device structure
1436  *
1437  * fills out function pointers in the net_device structure
1438  */
1439 static void gelic_ether_setup_netdev_ops(struct net_device *netdev,
1440                                          struct napi_struct *napi)
1441 {
1442         netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
1443         /* NAPI */
1444         netif_napi_add(netdev, napi, gelic_net_poll, NAPI_POLL_WEIGHT);
1445         netdev->ethtool_ops = &gelic_ether_ethtool_ops;
1446         netdev->netdev_ops = &gelic_netdevice_ops;
1447 }
1448 
1449 /**
1450  * gelic_ether_setup_netdev - initialization of net_device
1451  * @netdev: net_device structure
1452  * @card: card structure
1453  *
1454  * Returns 0 on success or <0 on failure
1455  *
1456  * gelic_ether_setup_netdev initializes the net_device structure
1457  * and register it.
1458  **/
1459 int gelic_net_setup_netdev(struct net_device *netdev, struct gelic_card *card)
1460 {
1461         int status;
1462         u64 v1, v2;
1463 
1464         netdev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
1465 
1466         netdev->features = NETIF_F_IP_CSUM;
1467         if (GELIC_CARD_RX_CSUM_DEFAULT)
1468                 netdev->features |= NETIF_F_RXCSUM;
1469 
1470         status = lv1_net_control(bus_id(card), dev_id(card),
1471                                  GELIC_LV1_GET_MAC_ADDRESS,
1472                                  0, 0, 0, &v1, &v2);
1473         v1 <<= 16;
1474         if (status || !is_valid_ether_addr((u8 *)&v1)) {
1475                 dev_info(ctodev(card),
1476                          "%s:lv1_net_control GET_MAC_ADDR failed %d\n",
1477                          __func__, status);
1478                 return -EINVAL;
1479         }
1480         memcpy(netdev->dev_addr, &v1, ETH_ALEN);
1481 
1482         if (card->vlan_required) {
1483                 netdev->hard_header_len += VLAN_HLEN;
1484                 /*
1485                  * As vlan is internally used,
1486                  * we can not receive vlan packets
1487                  */
1488                 netdev->features |= NETIF_F_VLAN_CHALLENGED;
1489         }
1490 
1491         /* MTU range: 64 - 1518 */
1492         netdev->min_mtu = GELIC_NET_MIN_MTU;
1493         netdev->max_mtu = GELIC_NET_MAX_MTU;
1494 
1495         status = register_netdev(netdev);
1496         if (status) {
1497                 dev_err(ctodev(card), "%s:Couldn't register %s %d\n",
1498                         __func__, netdev->name, status);
1499                 return status;
1500         }
1501         dev_info(ctodev(card), "%s: MAC addr %pM\n",
1502                  netdev->name, netdev->dev_addr);
1503 
1504         return 0;
1505 }
1506 
1507 /**
1508  * gelic_alloc_card_net - allocates net_device and card structure
1509  *
1510  * returns the card structure or NULL in case of errors
1511  *
1512  * the card and net_device structures are linked to each other
1513  */
1514 #define GELIC_ALIGN (32)
1515 static struct gelic_card *gelic_alloc_card_net(struct net_device **netdev)
1516 {
1517         struct gelic_card *card;
1518         struct gelic_port *port;
1519         void *p;
1520         size_t alloc_size;
1521         /*
1522          * gelic requires dma descriptor is 32 bytes aligned and
1523          * the hypervisor requires irq_status is 8 bytes aligned.
1524          */
1525         BUILD_BUG_ON(offsetof(struct gelic_card, irq_status) % 8);
1526         BUILD_BUG_ON(offsetof(struct gelic_card, descr) % 32);
1527         alloc_size =
1528                 sizeof(struct gelic_card) +
1529                 sizeof(struct gelic_descr) * GELIC_NET_RX_DESCRIPTORS +
1530                 sizeof(struct gelic_descr) * GELIC_NET_TX_DESCRIPTORS +
1531                 GELIC_ALIGN - 1;
1532 
1533         p  = kzalloc(alloc_size, GFP_KERNEL);
1534         if (!p)
1535                 return NULL;
1536         card = PTR_ALIGN(p, GELIC_ALIGN);
1537         card->unalign = p;
1538 
1539         /*
1540          * alloc netdev
1541          */
1542         *netdev = alloc_etherdev(sizeof(struct gelic_port));
1543         if (!*netdev) {
1544                 kfree(card->unalign);
1545                 return NULL;
1546         }
1547         port = netdev_priv(*netdev);
1548 
1549         /* gelic_port */
1550         port->netdev = *netdev;
1551         port->card = card;
1552         port->type = GELIC_PORT_ETHERNET_0;
1553 
1554         /* gelic_card */
1555         card->netdev[GELIC_PORT_ETHERNET_0] = *netdev;
1556 
1557         INIT_WORK(&card->tx_timeout_task, gelic_net_tx_timeout_task);
1558         init_waitqueue_head(&card->waitq);
1559         atomic_set(&card->tx_timeout_task_counter, 0);
1560         mutex_init(&card->updown_lock);
1561         atomic_set(&card->users, 0);
1562 
1563         return card;
1564 }
1565 
1566 static void gelic_card_get_vlan_info(struct gelic_card *card)
1567 {
1568         u64 v1, v2;
1569         int status;
1570         unsigned int i;
1571         struct {
1572                 int tx;
1573                 int rx;
1574         } vlan_id_ix[2] = {
1575                 [GELIC_PORT_ETHERNET_0] = {
1576                         .tx = GELIC_LV1_VLAN_TX_ETHERNET_0,
1577                         .rx = GELIC_LV1_VLAN_RX_ETHERNET_0
1578                 },
1579                 [GELIC_PORT_WIRELESS] = {
1580                         .tx = GELIC_LV1_VLAN_TX_WIRELESS,
1581                         .rx = GELIC_LV1_VLAN_RX_WIRELESS
1582                 }
1583         };
1584 
1585         for (i = 0; i < ARRAY_SIZE(vlan_id_ix); i++) {
1586                 /* tx tag */
1587                 status = lv1_net_control(bus_id(card), dev_id(card),
1588                                          GELIC_LV1_GET_VLAN_ID,
1589                                          vlan_id_ix[i].tx,
1590                                          0, 0, &v1, &v2);
1591                 if (status || !v1) {
1592                         if (status != LV1_NO_ENTRY)
1593                                 dev_dbg(ctodev(card),
1594                                         "get vlan id for tx(%d) failed(%d)\n",
1595                                         vlan_id_ix[i].tx, status);
1596                         card->vlan[i].tx = 0;
1597                         card->vlan[i].rx = 0;
1598                         continue;
1599                 }
1600                 card->vlan[i].tx = (u16)v1;
1601 
1602                 /* rx tag */
1603                 status = lv1_net_control(bus_id(card), dev_id(card),
1604                                          GELIC_LV1_GET_VLAN_ID,
1605                                          vlan_id_ix[i].rx,
1606                                          0, 0, &v1, &v2);
1607                 if (status || !v1) {
1608                         if (status != LV1_NO_ENTRY)
1609                                 dev_info(ctodev(card),
1610                                          "get vlan id for rx(%d) failed(%d)\n",
1611                                          vlan_id_ix[i].rx, status);
1612                         card->vlan[i].tx = 0;
1613                         card->vlan[i].rx = 0;
1614                         continue;
1615                 }
1616                 card->vlan[i].rx = (u16)v1;
1617 
1618                 dev_dbg(ctodev(card), "vlan_id[%d] tx=%02x rx=%02x\n",
1619                         i, card->vlan[i].tx, card->vlan[i].rx);
1620         }
1621 
1622         if (card->vlan[GELIC_PORT_ETHERNET_0].tx) {
1623                 BUG_ON(!card->vlan[GELIC_PORT_WIRELESS].tx);
1624                 card->vlan_required = 1;
1625         } else
1626                 card->vlan_required = 0;
1627 
1628         /* check wirelss capable firmware */
1629         if (ps3_compare_firmware_version(1, 6, 0) < 0) {
1630                 card->vlan[GELIC_PORT_WIRELESS].tx = 0;
1631                 card->vlan[GELIC_PORT_WIRELESS].rx = 0;
1632         }
1633 
1634         dev_info(ctodev(card), "internal vlan %s\n",
1635                  card->vlan_required? "enabled" : "disabled");
1636 }
1637 /**
1638  * ps3_gelic_driver_probe - add a device to the control of this driver
1639  */
1640 static int ps3_gelic_driver_probe(struct ps3_system_bus_device *dev)
1641 {
1642         struct gelic_card *card;
1643         struct net_device *netdev;
1644         int result;
1645 
1646         pr_debug("%s: called\n", __func__);
1647 
1648         udbg_shutdown_ps3gelic();
1649 
1650         result = ps3_open_hv_device(dev);
1651 
1652         if (result) {
1653                 dev_dbg(&dev->core, "%s:ps3_open_hv_device failed\n",
1654                         __func__);
1655                 goto fail_open;
1656         }
1657 
1658         result = ps3_dma_region_create(dev->d_region);
1659 
1660         if (result) {
1661                 dev_dbg(&dev->core, "%s:ps3_dma_region_create failed(%d)\n",
1662                         __func__, result);
1663                 BUG_ON("check region type");
1664                 goto fail_dma_region;
1665         }
1666 
1667         /* alloc card/netdevice */
1668         card = gelic_alloc_card_net(&netdev);
1669         if (!card) {
1670                 dev_info(&dev->core, "%s:gelic_net_alloc_card failed\n",
1671                          __func__);
1672                 result = -ENOMEM;
1673                 goto fail_alloc_card;
1674         }
1675         ps3_system_bus_set_drvdata(dev, card);
1676         card->dev = dev;
1677 
1678         /* get internal vlan info */
1679         gelic_card_get_vlan_info(card);
1680 
1681         card->link_mode = GELIC_LV1_ETHER_AUTO_NEG;
1682 
1683         /* setup interrupt */
1684         result = lv1_net_set_interrupt_status_indicator(bus_id(card),
1685                                                         dev_id(card),
1686                 ps3_mm_phys_to_lpar(__pa(&card->irq_status)),
1687                 0);
1688 
1689         if (result) {
1690                 dev_dbg(&dev->core,
1691                         "%s:set_interrupt_status_indicator failed: %s\n",
1692                         __func__, ps3_result(result));
1693                 result = -EIO;
1694                 goto fail_status_indicator;
1695         }
1696 
1697         result = ps3_sb_event_receive_port_setup(dev, PS3_BINDING_CPU_ANY,
1698                 &card->irq);
1699 
1700         if (result) {
1701                 dev_info(ctodev(card),
1702                          "%s:gelic_net_open_device failed (%d)\n",
1703                          __func__, result);
1704                 result = -EPERM;
1705                 goto fail_alloc_irq;
1706         }
1707         result = request_irq(card->irq, gelic_card_interrupt,
1708                              0, netdev->name, card);
1709 
1710         if (result) {
1711                 dev_info(ctodev(card), "%s:request_irq failed (%d)\n",
1712                         __func__, result);
1713                 goto fail_request_irq;
1714         }
1715 
1716         /* setup card structure */
1717         card->irq_mask = GELIC_CARD_RXINT | GELIC_CARD_TXINT |
1718                 GELIC_CARD_PORT_STATUS_CHANGED;
1719 
1720 
1721         result = gelic_card_init_chain(card, &card->tx_chain,
1722                                        card->descr, GELIC_NET_TX_DESCRIPTORS);
1723         if (result)
1724                 goto fail_alloc_tx;
1725         result = gelic_card_init_chain(card, &card->rx_chain,
1726                                        card->descr + GELIC_NET_TX_DESCRIPTORS,
1727                                        GELIC_NET_RX_DESCRIPTORS);
1728         if (result)
1729                 goto fail_alloc_rx;
1730 
1731         /* head of chain */
1732         card->tx_top = card->tx_chain.head;
1733         card->rx_top = card->rx_chain.head;
1734         dev_dbg(ctodev(card), "descr rx %p, tx %p, size %#lx, num %#x\n",
1735                 card->rx_top, card->tx_top, sizeof(struct gelic_descr),
1736                 GELIC_NET_RX_DESCRIPTORS);
1737         /* allocate rx skbs */
1738         result = gelic_card_alloc_rx_skbs(card);
1739         if (result)
1740                 goto fail_alloc_skbs;
1741 
1742         spin_lock_init(&card->tx_lock);
1743         card->tx_dma_progress = 0;
1744 
1745         /* setup net_device structure */
1746         netdev->irq = card->irq;
1747         SET_NETDEV_DEV(netdev, &card->dev->core);
1748         gelic_ether_setup_netdev_ops(netdev, &card->napi);
1749         result = gelic_net_setup_netdev(netdev, card);
1750         if (result) {
1751                 dev_dbg(&dev->core, "%s: setup_netdev failed %d\n",
1752                         __func__, result);
1753                 goto fail_setup_netdev;
1754         }
1755 
1756 #ifdef CONFIG_GELIC_WIRELESS
1757         result = gelic_wl_driver_probe(card);
1758         if (result) {
1759                 dev_dbg(&dev->core, "%s: WL init failed\n", __func__);
1760                 goto fail_setup_netdev;
1761         }
1762 #endif
1763         pr_debug("%s: done\n", __func__);
1764         return 0;
1765 
1766 fail_setup_netdev:
1767 fail_alloc_skbs:
1768         gelic_card_free_chain(card, card->rx_chain.head);
1769 fail_alloc_rx:
1770         gelic_card_free_chain(card, card->tx_chain.head);
1771 fail_alloc_tx:
1772         free_irq(card->irq, card);
1773         netdev->irq = 0;
1774 fail_request_irq:
1775         ps3_sb_event_receive_port_destroy(dev, card->irq);
1776 fail_alloc_irq:
1777         lv1_net_set_interrupt_status_indicator(bus_id(card),
1778                                                bus_id(card),
1779                                                0, 0);
1780 fail_status_indicator:
1781         ps3_system_bus_set_drvdata(dev, NULL);
1782         kfree(netdev_card(netdev)->unalign);
1783         free_netdev(netdev);
1784 fail_alloc_card:
1785         ps3_dma_region_free(dev->d_region);
1786 fail_dma_region:
1787         ps3_close_hv_device(dev);
1788 fail_open:
1789         return result;
1790 }
1791 
1792 /**
1793  * ps3_gelic_driver_remove - remove a device from the control of this driver
1794  */
1795 
1796 static int ps3_gelic_driver_remove(struct ps3_system_bus_device *dev)
1797 {
1798         struct gelic_card *card = ps3_system_bus_get_drvdata(dev);
1799         struct net_device *netdev0;
1800         pr_debug("%s: called\n", __func__);
1801 
1802         /* set auto-negotiation */
1803         gelic_card_set_link_mode(card, GELIC_LV1_ETHER_AUTO_NEG);
1804 
1805 #ifdef CONFIG_GELIC_WIRELESS
1806         gelic_wl_driver_remove(card);
1807 #endif
1808         /* stop interrupt */
1809         gelic_card_set_irq_mask(card, 0);
1810 
1811         /* turn off DMA, force end */
1812         gelic_card_disable_rxdmac(card);
1813         gelic_card_disable_txdmac(card);
1814 
1815         /* release chains */
1816         gelic_card_release_tx_chain(card, 1);
1817         gelic_card_release_rx_chain(card);
1818 
1819         gelic_card_free_chain(card, card->tx_top);
1820         gelic_card_free_chain(card, card->rx_top);
1821 
1822         netdev0 = card->netdev[GELIC_PORT_ETHERNET_0];
1823         /* disconnect event port */
1824         free_irq(card->irq, card);
1825         netdev0->irq = 0;
1826         ps3_sb_event_receive_port_destroy(card->dev, card->irq);
1827 
1828         wait_event(card->waitq,
1829                    atomic_read(&card->tx_timeout_task_counter) == 0);
1830 
1831         lv1_net_set_interrupt_status_indicator(bus_id(card), dev_id(card),
1832                                                0 , 0);
1833 
1834         unregister_netdev(netdev0);
1835         kfree(netdev_card(netdev0)->unalign);
1836         free_netdev(netdev0);
1837 
1838         ps3_system_bus_set_drvdata(dev, NULL);
1839 
1840         ps3_dma_region_free(dev->d_region);
1841 
1842         ps3_close_hv_device(dev);
1843 
1844         pr_debug("%s: done\n", __func__);
1845         return 0;
1846 }
1847 
1848 static struct ps3_system_bus_driver ps3_gelic_driver = {
1849         .match_id = PS3_MATCH_ID_GELIC,
1850         .probe = ps3_gelic_driver_probe,
1851         .remove = ps3_gelic_driver_remove,
1852         .shutdown = ps3_gelic_driver_remove,
1853         .core.name = "ps3_gelic_driver",
1854         .core.owner = THIS_MODULE,
1855 };
1856 
1857 static int __init ps3_gelic_driver_init (void)
1858 {
1859         return firmware_has_feature(FW_FEATURE_PS3_LV1)
1860                 ? ps3_system_bus_driver_register(&ps3_gelic_driver)
1861                 : -ENODEV;
1862 }
1863 
1864 static void __exit ps3_gelic_driver_exit (void)
1865 {
1866         ps3_system_bus_driver_unregister(&ps3_gelic_driver);
1867 }
1868 
1869 module_init(ps3_gelic_driver_init);
1870 module_exit(ps3_gelic_driver_exit);
1871 
1872 MODULE_ALIAS(PS3_MODULE_ALIAS_GELIC);
1873
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/net/ethernet/toshiba/ps3_gelic_net.c

DEFINITIONS
