Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright(c) 2006 - 2007 Atheros Corporation. All rights reserved. |
| 3 | * Copyright(c) 2007 - 2008 Chris Snook <csnook@redhat.com> |
| 4 | * |
| 5 | * Derived from Intel e1000 driver |
| 6 | * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License as published by the Free |
| 10 | * Software Foundation; either version 2 of the License, or (at your option) |
| 11 | * any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 14 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 15 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 16 | * more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along with |
| 19 | * this program; if not, write to the Free Software Foundation, Inc., 59 |
| 20 | * Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 21 | */ |
| 22 | |
| 23 | #include <asm/atomic.h> |
| 24 | #include <linux/crc32.h> |
| 25 | #include <linux/dma-mapping.h> |
| 26 | #include <linux/etherdevice.h> |
| 27 | #include <linux/ethtool.h> |
| 28 | #include <linux/hardirq.h> |
| 29 | #include <linux/if_vlan.h> |
| 30 | #include <linux/in.h> |
| 31 | #include <linux/interrupt.h> |
| 32 | #include <linux/ip.h> |
| 33 | #include <linux/irqflags.h> |
| 34 | #include <linux/irqreturn.h> |
| 35 | #include <linux/mii.h> |
| 36 | #include <linux/net.h> |
| 37 | #include <linux/netdevice.h> |
| 38 | #include <linux/pci.h> |
| 39 | #include <linux/pci_ids.h> |
| 40 | #include <linux/pm.h> |
| 41 | #include <linux/skbuff.h> |
| 42 | #include <linux/spinlock.h> |
| 43 | #include <linux/string.h> |
| 44 | #include <linux/tcp.h> |
| 45 | #include <linux/timer.h> |
| 46 | #include <linux/types.h> |
| 47 | #include <linux/workqueue.h> |
| 48 | |
| 49 | #include "atl2.h" |
| 50 | |
| 51 | #define ATL2_DRV_VERSION "2.2.3" |
| 52 | |
| 53 | static char atl2_driver_name[] = "atl2"; |
| 54 | static const char atl2_driver_string[] = "Atheros(R) L2 Ethernet Driver"; |
| 55 | static char atl2_copyright[] = "Copyright (c) 2007 Atheros Corporation."; |
| 56 | static char atl2_driver_version[] = ATL2_DRV_VERSION; |
| 57 | |
| 58 | MODULE_AUTHOR("Atheros Corporation <xiong.huang@atheros.com>, Chris Snook <csnook@redhat.com>"); |
| 59 | MODULE_DESCRIPTION("Atheros Fast Ethernet Network Driver"); |
| 60 | MODULE_LICENSE("GPL"); |
| 61 | MODULE_VERSION(ATL2_DRV_VERSION); |
| 62 | |
| 63 | /* |
| 64 | * atl2_pci_tbl - PCI Device ID Table |
| 65 | */ |
| 66 | static struct pci_device_id atl2_pci_tbl[] = { |
| 67 | {PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATTANSIC_L2)}, |
| 68 | /* required last entry */ |
| 69 | {0,} |
| 70 | }; |
| 71 | MODULE_DEVICE_TABLE(pci, atl2_pci_tbl); |
| 72 | |
| 73 | static void atl2_set_ethtool_ops(struct net_device *netdev); |
| 74 | |
| 75 | static void atl2_check_options(struct atl2_adapter *adapter); |
| 76 | |
| 77 | /* |
| 78 | * atl2_sw_init - Initialize general software structures (struct atl2_adapter) |
| 79 | * @adapter: board private structure to initialize |
| 80 | * |
| 81 | * atl2_sw_init initializes the Adapter private data structure. |
| 82 | * Fields are initialized based on PCI device information and |
| 83 | * OS network device settings (MTU size). |
| 84 | */ |
| 85 | static int __devinit atl2_sw_init(struct atl2_adapter *adapter) |
| 86 | { |
| 87 | struct atl2_hw *hw = &adapter->hw; |
| 88 | struct pci_dev *pdev = adapter->pdev; |
| 89 | |
| 90 | /* PCI config space info */ |
| 91 | hw->vendor_id = pdev->vendor; |
| 92 | hw->device_id = pdev->device; |
| 93 | hw->subsystem_vendor_id = pdev->subsystem_vendor; |
| 94 | hw->subsystem_id = pdev->subsystem_device; |
| 95 | |
| 96 | pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id); |
| 97 | pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word); |
| 98 | |
| 99 | adapter->wol = 0; |
| 100 | adapter->ict = 50000; /* ~100ms */ |
| 101 | adapter->link_speed = SPEED_0; /* hardware init */ |
| 102 | adapter->link_duplex = FULL_DUPLEX; |
| 103 | |
| 104 | hw->phy_configured = false; |
| 105 | hw->preamble_len = 7; |
| 106 | hw->ipgt = 0x60; |
| 107 | hw->min_ifg = 0x50; |
| 108 | hw->ipgr1 = 0x40; |
| 109 | hw->ipgr2 = 0x60; |
| 110 | hw->retry_buf = 2; |
| 111 | hw->max_retry = 0xf; |
| 112 | hw->lcol = 0x37; |
| 113 | hw->jam_ipg = 7; |
| 114 | hw->fc_rxd_hi = 0; |
| 115 | hw->fc_rxd_lo = 0; |
| 116 | hw->max_frame_size = adapter->netdev->mtu; |
| 117 | |
| 118 | spin_lock_init(&adapter->stats_lock); |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 119 | |
| 120 | set_bit(__ATL2_DOWN, &adapter->flags); |
| 121 | |
| 122 | return 0; |
| 123 | } |
| 124 | |
| 125 | /* |
| 126 | * atl2_set_multi - Multicast and Promiscuous mode set |
| 127 | * @netdev: network interface device structure |
| 128 | * |
| 129 | * The set_multi entry point is called whenever the multicast address |
| 130 | * list or the network interface flags are updated. This routine is |
| 131 | * responsible for configuring the hardware for proper multicast, |
| 132 | * promiscuous mode, and all-multi behavior. |
| 133 | */ |
| 134 | static void atl2_set_multi(struct net_device *netdev) |
| 135 | { |
| 136 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 137 | struct atl2_hw *hw = &adapter->hw; |
| 138 | struct dev_mc_list *mc_ptr; |
| 139 | u32 rctl; |
| 140 | u32 hash_value; |
| 141 | |
| 142 | /* Check for Promiscuous and All Multicast modes */ |
| 143 | rctl = ATL2_READ_REG(hw, REG_MAC_CTRL); |
| 144 | |
| 145 | if (netdev->flags & IFF_PROMISC) { |
| 146 | rctl |= MAC_CTRL_PROMIS_EN; |
| 147 | } else if (netdev->flags & IFF_ALLMULTI) { |
| 148 | rctl |= MAC_CTRL_MC_ALL_EN; |
| 149 | rctl &= ~MAC_CTRL_PROMIS_EN; |
| 150 | } else |
| 151 | rctl &= ~(MAC_CTRL_PROMIS_EN | MAC_CTRL_MC_ALL_EN); |
| 152 | |
| 153 | ATL2_WRITE_REG(hw, REG_MAC_CTRL, rctl); |
| 154 | |
| 155 | /* clear the old settings from the multicast hash table */ |
| 156 | ATL2_WRITE_REG(hw, REG_RX_HASH_TABLE, 0); |
| 157 | ATL2_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, 1, 0); |
| 158 | |
| 159 | /* comoute mc addresses' hash value ,and put it into hash table */ |
| 160 | for (mc_ptr = netdev->mc_list; mc_ptr; mc_ptr = mc_ptr->next) { |
| 161 | hash_value = atl2_hash_mc_addr(hw, mc_ptr->dmi_addr); |
| 162 | atl2_hash_set(hw, hash_value); |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | static void init_ring_ptrs(struct atl2_adapter *adapter) |
| 167 | { |
| 168 | /* Read / Write Ptr Initialize: */ |
| 169 | adapter->txd_write_ptr = 0; |
| 170 | atomic_set(&adapter->txd_read_ptr, 0); |
| 171 | |
| 172 | adapter->rxd_read_ptr = 0; |
| 173 | adapter->rxd_write_ptr = 0; |
| 174 | |
| 175 | atomic_set(&adapter->txs_write_ptr, 0); |
| 176 | adapter->txs_next_clear = 0; |
| 177 | } |
| 178 | |
| 179 | /* |
| 180 | * atl2_configure - Configure Transmit&Receive Unit after Reset |
| 181 | * @adapter: board private structure |
| 182 | * |
| 183 | * Configure the Tx /Rx unit of the MAC after a reset. |
| 184 | */ |
| 185 | static int atl2_configure(struct atl2_adapter *adapter) |
| 186 | { |
| 187 | struct atl2_hw *hw = &adapter->hw; |
| 188 | u32 value; |
| 189 | |
| 190 | /* clear interrupt status */ |
| 191 | ATL2_WRITE_REG(&adapter->hw, REG_ISR, 0xffffffff); |
| 192 | |
| 193 | /* set MAC Address */ |
| 194 | value = (((u32)hw->mac_addr[2]) << 24) | |
| 195 | (((u32)hw->mac_addr[3]) << 16) | |
| 196 | (((u32)hw->mac_addr[4]) << 8) | |
| 197 | (((u32)hw->mac_addr[5])); |
| 198 | ATL2_WRITE_REG(hw, REG_MAC_STA_ADDR, value); |
| 199 | value = (((u32)hw->mac_addr[0]) << 8) | |
| 200 | (((u32)hw->mac_addr[1])); |
| 201 | ATL2_WRITE_REG(hw, (REG_MAC_STA_ADDR+4), value); |
| 202 | |
| 203 | /* HI base address */ |
| 204 | ATL2_WRITE_REG(hw, REG_DESC_BASE_ADDR_HI, |
| 205 | (u32)((adapter->ring_dma & 0xffffffff00000000ULL) >> 32)); |
| 206 | |
| 207 | /* LO base address */ |
| 208 | ATL2_WRITE_REG(hw, REG_TXD_BASE_ADDR_LO, |
| 209 | (u32)(adapter->txd_dma & 0x00000000ffffffffULL)); |
| 210 | ATL2_WRITE_REG(hw, REG_TXS_BASE_ADDR_LO, |
| 211 | (u32)(adapter->txs_dma & 0x00000000ffffffffULL)); |
| 212 | ATL2_WRITE_REG(hw, REG_RXD_BASE_ADDR_LO, |
| 213 | (u32)(adapter->rxd_dma & 0x00000000ffffffffULL)); |
| 214 | |
| 215 | /* element count */ |
| 216 | ATL2_WRITE_REGW(hw, REG_TXD_MEM_SIZE, (u16)(adapter->txd_ring_size/4)); |
| 217 | ATL2_WRITE_REGW(hw, REG_TXS_MEM_SIZE, (u16)adapter->txs_ring_size); |
| 218 | ATL2_WRITE_REGW(hw, REG_RXD_BUF_NUM, (u16)adapter->rxd_ring_size); |
| 219 | |
| 220 | /* config Internal SRAM */ |
| 221 | /* |
| 222 | ATL2_WRITE_REGW(hw, REG_SRAM_TXRAM_END, sram_tx_end); |
| 223 | ATL2_WRITE_REGW(hw, REG_SRAM_TXRAM_END, sram_rx_end); |
| 224 | */ |
| 225 | |
| 226 | /* config IPG/IFG */ |
| 227 | value = (((u32)hw->ipgt & MAC_IPG_IFG_IPGT_MASK) << |
| 228 | MAC_IPG_IFG_IPGT_SHIFT) | |
| 229 | (((u32)hw->min_ifg & MAC_IPG_IFG_MIFG_MASK) << |
| 230 | MAC_IPG_IFG_MIFG_SHIFT) | |
| 231 | (((u32)hw->ipgr1 & MAC_IPG_IFG_IPGR1_MASK) << |
| 232 | MAC_IPG_IFG_IPGR1_SHIFT)| |
| 233 | (((u32)hw->ipgr2 & MAC_IPG_IFG_IPGR2_MASK) << |
| 234 | MAC_IPG_IFG_IPGR2_SHIFT); |
| 235 | ATL2_WRITE_REG(hw, REG_MAC_IPG_IFG, value); |
| 236 | |
| 237 | /* config Half-Duplex Control */ |
| 238 | value = ((u32)hw->lcol & MAC_HALF_DUPLX_CTRL_LCOL_MASK) | |
| 239 | (((u32)hw->max_retry & MAC_HALF_DUPLX_CTRL_RETRY_MASK) << |
| 240 | MAC_HALF_DUPLX_CTRL_RETRY_SHIFT) | |
| 241 | MAC_HALF_DUPLX_CTRL_EXC_DEF_EN | |
| 242 | (0xa << MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT) | |
| 243 | (((u32)hw->jam_ipg & MAC_HALF_DUPLX_CTRL_JAMIPG_MASK) << |
| 244 | MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT); |
| 245 | ATL2_WRITE_REG(hw, REG_MAC_HALF_DUPLX_CTRL, value); |
| 246 | |
| 247 | /* set Interrupt Moderator Timer */ |
| 248 | ATL2_WRITE_REGW(hw, REG_IRQ_MODU_TIMER_INIT, adapter->imt); |
| 249 | ATL2_WRITE_REG(hw, REG_MASTER_CTRL, MASTER_CTRL_ITIMER_EN); |
| 250 | |
| 251 | /* set Interrupt Clear Timer */ |
| 252 | ATL2_WRITE_REGW(hw, REG_CMBDISDMA_TIMER, adapter->ict); |
| 253 | |
| 254 | /* set MTU */ |
| 255 | ATL2_WRITE_REG(hw, REG_MTU, adapter->netdev->mtu + |
| 256 | ENET_HEADER_SIZE + VLAN_SIZE + ETHERNET_FCS_SIZE); |
| 257 | |
| 258 | /* 1590 */ |
| 259 | ATL2_WRITE_REG(hw, REG_TX_CUT_THRESH, 0x177); |
| 260 | |
| 261 | /* flow control */ |
| 262 | ATL2_WRITE_REGW(hw, REG_PAUSE_ON_TH, hw->fc_rxd_hi); |
| 263 | ATL2_WRITE_REGW(hw, REG_PAUSE_OFF_TH, hw->fc_rxd_lo); |
| 264 | |
| 265 | /* Init mailbox */ |
| 266 | ATL2_WRITE_REGW(hw, REG_MB_TXD_WR_IDX, (u16)adapter->txd_write_ptr); |
| 267 | ATL2_WRITE_REGW(hw, REG_MB_RXD_RD_IDX, (u16)adapter->rxd_read_ptr); |
| 268 | |
| 269 | /* enable DMA read/write */ |
| 270 | ATL2_WRITE_REGB(hw, REG_DMAR, DMAR_EN); |
| 271 | ATL2_WRITE_REGB(hw, REG_DMAW, DMAW_EN); |
| 272 | |
| 273 | value = ATL2_READ_REG(&adapter->hw, REG_ISR); |
| 274 | if ((value & ISR_PHY_LINKDOWN) != 0) |
| 275 | value = 1; /* config failed */ |
| 276 | else |
| 277 | value = 0; |
| 278 | |
| 279 | /* clear all interrupt status */ |
| 280 | ATL2_WRITE_REG(&adapter->hw, REG_ISR, 0x3fffffff); |
| 281 | ATL2_WRITE_REG(&adapter->hw, REG_ISR, 0); |
| 282 | return value; |
| 283 | } |
| 284 | |
| 285 | /* |
| 286 | * atl2_setup_ring_resources - allocate Tx / RX descriptor resources |
| 287 | * @adapter: board private structure |
| 288 | * |
| 289 | * Return 0 on success, negative on failure |
| 290 | */ |
| 291 | static s32 atl2_setup_ring_resources(struct atl2_adapter *adapter) |
| 292 | { |
| 293 | struct pci_dev *pdev = adapter->pdev; |
| 294 | int size; |
| 295 | u8 offset = 0; |
| 296 | |
| 297 | /* real ring DMA buffer */ |
| 298 | adapter->ring_size = size = |
| 299 | adapter->txd_ring_size * 1 + 7 + /* dword align */ |
| 300 | adapter->txs_ring_size * 4 + 7 + /* dword align */ |
| 301 | adapter->rxd_ring_size * 1536 + 127; /* 128bytes align */ |
| 302 | |
| 303 | adapter->ring_vir_addr = pci_alloc_consistent(pdev, size, |
| 304 | &adapter->ring_dma); |
| 305 | if (!adapter->ring_vir_addr) |
| 306 | return -ENOMEM; |
| 307 | memset(adapter->ring_vir_addr, 0, adapter->ring_size); |
| 308 | |
| 309 | /* Init TXD Ring */ |
| 310 | adapter->txd_dma = adapter->ring_dma ; |
| 311 | offset = (adapter->txd_dma & 0x7) ? (8 - (adapter->txd_dma & 0x7)) : 0; |
| 312 | adapter->txd_dma += offset; |
| 313 | adapter->txd_ring = (struct tx_pkt_header *) (adapter->ring_vir_addr + |
| 314 | offset); |
| 315 | |
| 316 | /* Init TXS Ring */ |
| 317 | adapter->txs_dma = adapter->txd_dma + adapter->txd_ring_size; |
| 318 | offset = (adapter->txs_dma & 0x7) ? (8 - (adapter->txs_dma & 0x7)) : 0; |
| 319 | adapter->txs_dma += offset; |
| 320 | adapter->txs_ring = (struct tx_pkt_status *) |
| 321 | (((u8 *)adapter->txd_ring) + (adapter->txd_ring_size + offset)); |
| 322 | |
| 323 | /* Init RXD Ring */ |
| 324 | adapter->rxd_dma = adapter->txs_dma + adapter->txs_ring_size * 4; |
| 325 | offset = (adapter->rxd_dma & 127) ? |
| 326 | (128 - (adapter->rxd_dma & 127)) : 0; |
| 327 | if (offset > 7) |
| 328 | offset -= 8; |
| 329 | else |
| 330 | offset += (128 - 8); |
| 331 | |
| 332 | adapter->rxd_dma += offset; |
| 333 | adapter->rxd_ring = (struct rx_desc *) (((u8 *)adapter->txs_ring) + |
| 334 | (adapter->txs_ring_size * 4 + offset)); |
| 335 | |
| 336 | /* |
| 337 | * Read / Write Ptr Initialize: |
| 338 | * init_ring_ptrs(adapter); |
| 339 | */ |
| 340 | return 0; |
| 341 | } |
| 342 | |
| 343 | /* |
| 344 | * atl2_irq_enable - Enable default interrupt generation settings |
| 345 | * @adapter: board private structure |
| 346 | */ |
| 347 | static inline void atl2_irq_enable(struct atl2_adapter *adapter) |
| 348 | { |
| 349 | ATL2_WRITE_REG(&adapter->hw, REG_IMR, IMR_NORMAL_MASK); |
| 350 | ATL2_WRITE_FLUSH(&adapter->hw); |
| 351 | } |
| 352 | |
| 353 | /* |
| 354 | * atl2_irq_disable - Mask off interrupt generation on the NIC |
| 355 | * @adapter: board private structure |
| 356 | */ |
| 357 | static inline void atl2_irq_disable(struct atl2_adapter *adapter) |
| 358 | { |
| 359 | ATL2_WRITE_REG(&adapter->hw, REG_IMR, 0); |
| 360 | ATL2_WRITE_FLUSH(&adapter->hw); |
| 361 | synchronize_irq(adapter->pdev->irq); |
| 362 | } |
| 363 | |
| 364 | #ifdef NETIF_F_HW_VLAN_TX |
| 365 | static void atl2_vlan_rx_register(struct net_device *netdev, |
| 366 | struct vlan_group *grp) |
| 367 | { |
| 368 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 369 | u32 ctrl; |
| 370 | |
| 371 | atl2_irq_disable(adapter); |
| 372 | adapter->vlgrp = grp; |
| 373 | |
| 374 | if (grp) { |
| 375 | /* enable VLAN tag insert/strip */ |
| 376 | ctrl = ATL2_READ_REG(&adapter->hw, REG_MAC_CTRL); |
| 377 | ctrl |= MAC_CTRL_RMV_VLAN; |
| 378 | ATL2_WRITE_REG(&adapter->hw, REG_MAC_CTRL, ctrl); |
| 379 | } else { |
| 380 | /* disable VLAN tag insert/strip */ |
| 381 | ctrl = ATL2_READ_REG(&adapter->hw, REG_MAC_CTRL); |
| 382 | ctrl &= ~MAC_CTRL_RMV_VLAN; |
| 383 | ATL2_WRITE_REG(&adapter->hw, REG_MAC_CTRL, ctrl); |
| 384 | } |
| 385 | |
| 386 | atl2_irq_enable(adapter); |
| 387 | } |
| 388 | |
| 389 | static void atl2_restore_vlan(struct atl2_adapter *adapter) |
| 390 | { |
| 391 | atl2_vlan_rx_register(adapter->netdev, adapter->vlgrp); |
| 392 | } |
| 393 | #endif |
| 394 | |
| 395 | static void atl2_intr_rx(struct atl2_adapter *adapter) |
| 396 | { |
| 397 | struct net_device *netdev = adapter->netdev; |
| 398 | struct rx_desc *rxd; |
| 399 | struct sk_buff *skb; |
| 400 | |
| 401 | do { |
| 402 | rxd = adapter->rxd_ring+adapter->rxd_write_ptr; |
| 403 | if (!rxd->status.update) |
| 404 | break; /* end of tx */ |
| 405 | |
| 406 | /* clear this flag at once */ |
| 407 | rxd->status.update = 0; |
| 408 | |
| 409 | if (rxd->status.ok && rxd->status.pkt_size >= 60) { |
| 410 | int rx_size = (int)(rxd->status.pkt_size - 4); |
| 411 | /* alloc new buffer */ |
| 412 | skb = netdev_alloc_skb(netdev, rx_size + NET_IP_ALIGN); |
| 413 | if (NULL == skb) { |
| 414 | printk(KERN_WARNING |
| 415 | "%s: Mem squeeze, deferring packet.\n", |
| 416 | netdev->name); |
| 417 | /* |
| 418 | * Check that some rx space is free. If not, |
| 419 | * free one and mark stats->rx_dropped++. |
| 420 | */ |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 421 | netdev->stats.rx_dropped++; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 422 | break; |
| 423 | } |
| 424 | skb_reserve(skb, NET_IP_ALIGN); |
| 425 | skb->dev = netdev; |
| 426 | memcpy(skb->data, rxd->packet, rx_size); |
| 427 | skb_put(skb, rx_size); |
| 428 | skb->protocol = eth_type_trans(skb, netdev); |
| 429 | #ifdef NETIF_F_HW_VLAN_TX |
| 430 | if (adapter->vlgrp && (rxd->status.vlan)) { |
| 431 | u16 vlan_tag = (rxd->status.vtag>>4) | |
| 432 | ((rxd->status.vtag&7) << 13) | |
| 433 | ((rxd->status.vtag&8) << 9); |
| 434 | vlan_hwaccel_rx(skb, adapter->vlgrp, vlan_tag); |
| 435 | } else |
| 436 | #endif |
| 437 | netif_rx(skb); |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 438 | netdev->stats.rx_bytes += rx_size; |
| 439 | netdev->stats.rx_packets++; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 440 | } else { |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 441 | netdev->stats.rx_errors++; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 442 | |
| 443 | if (rxd->status.ok && rxd->status.pkt_size <= 60) |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 444 | netdev->stats.rx_length_errors++; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 445 | if (rxd->status.mcast) |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 446 | netdev->stats.multicast++; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 447 | if (rxd->status.crc) |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 448 | netdev->stats.rx_crc_errors++; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 449 | if (rxd->status.align) |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 450 | netdev->stats.rx_frame_errors++; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 451 | } |
| 452 | |
| 453 | /* advance write ptr */ |
| 454 | if (++adapter->rxd_write_ptr == adapter->rxd_ring_size) |
| 455 | adapter->rxd_write_ptr = 0; |
| 456 | } while (1); |
| 457 | |
| 458 | /* update mailbox? */ |
| 459 | adapter->rxd_read_ptr = adapter->rxd_write_ptr; |
| 460 | ATL2_WRITE_REGW(&adapter->hw, REG_MB_RXD_RD_IDX, adapter->rxd_read_ptr); |
| 461 | } |
| 462 | |
| 463 | static void atl2_intr_tx(struct atl2_adapter *adapter) |
| 464 | { |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 465 | struct net_device *netdev = adapter->netdev; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 466 | u32 txd_read_ptr; |
| 467 | u32 txs_write_ptr; |
| 468 | struct tx_pkt_status *txs; |
| 469 | struct tx_pkt_header *txph; |
| 470 | int free_hole = 0; |
| 471 | |
| 472 | do { |
| 473 | txs_write_ptr = (u32) atomic_read(&adapter->txs_write_ptr); |
| 474 | txs = adapter->txs_ring + txs_write_ptr; |
| 475 | if (!txs->update) |
| 476 | break; /* tx stop here */ |
| 477 | |
| 478 | free_hole = 1; |
| 479 | txs->update = 0; |
| 480 | |
| 481 | if (++txs_write_ptr == adapter->txs_ring_size) |
| 482 | txs_write_ptr = 0; |
| 483 | atomic_set(&adapter->txs_write_ptr, (int)txs_write_ptr); |
| 484 | |
| 485 | txd_read_ptr = (u32) atomic_read(&adapter->txd_read_ptr); |
| 486 | txph = (struct tx_pkt_header *) |
| 487 | (((u8 *)adapter->txd_ring) + txd_read_ptr); |
| 488 | |
| 489 | if (txph->pkt_size != txs->pkt_size) { |
| 490 | struct tx_pkt_status *old_txs = txs; |
| 491 | printk(KERN_WARNING |
| 492 | "%s: txs packet size not consistent with txd" |
| 493 | " txd_:0x%08x, txs_:0x%08x!\n", |
| 494 | adapter->netdev->name, |
| 495 | *(u32 *)txph, *(u32 *)txs); |
| 496 | printk(KERN_WARNING |
| 497 | "txd read ptr: 0x%x\n", |
| 498 | txd_read_ptr); |
| 499 | txs = adapter->txs_ring + txs_write_ptr; |
| 500 | printk(KERN_WARNING |
| 501 | "txs-behind:0x%08x\n", |
| 502 | *(u32 *)txs); |
| 503 | if (txs_write_ptr < 2) { |
| 504 | txs = adapter->txs_ring + |
| 505 | (adapter->txs_ring_size + |
| 506 | txs_write_ptr - 2); |
| 507 | } else { |
| 508 | txs = adapter->txs_ring + (txs_write_ptr - 2); |
| 509 | } |
| 510 | printk(KERN_WARNING |
| 511 | "txs-before:0x%08x\n", |
| 512 | *(u32 *)txs); |
| 513 | txs = old_txs; |
| 514 | } |
| 515 | |
| 516 | /* 4for TPH */ |
| 517 | txd_read_ptr += (((u32)(txph->pkt_size) + 7) & ~3); |
| 518 | if (txd_read_ptr >= adapter->txd_ring_size) |
| 519 | txd_read_ptr -= adapter->txd_ring_size; |
| 520 | |
| 521 | atomic_set(&adapter->txd_read_ptr, (int)txd_read_ptr); |
| 522 | |
| 523 | /* tx statistics: */ |
Jay Cliburn | e2f092f | 2008-09-20 17:37:05 -0500 | [diff] [blame] | 524 | if (txs->ok) { |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 525 | netdev->stats.tx_bytes += txs->pkt_size; |
| 526 | netdev->stats.tx_packets++; |
Jay Cliburn | e2f092f | 2008-09-20 17:37:05 -0500 | [diff] [blame] | 527 | } |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 528 | else |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 529 | netdev->stats.tx_errors++; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 530 | |
| 531 | if (txs->defer) |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 532 | netdev->stats.collisions++; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 533 | if (txs->abort_col) |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 534 | netdev->stats.tx_aborted_errors++; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 535 | if (txs->late_col) |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 536 | netdev->stats.tx_window_errors++; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 537 | if (txs->underun) |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 538 | netdev->stats.tx_fifo_errors++; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 539 | } while (1); |
| 540 | |
| 541 | if (free_hole) { |
| 542 | if (netif_queue_stopped(adapter->netdev) && |
| 543 | netif_carrier_ok(adapter->netdev)) |
| 544 | netif_wake_queue(adapter->netdev); |
| 545 | } |
| 546 | } |
| 547 | |
| 548 | static void atl2_check_for_link(struct atl2_adapter *adapter) |
| 549 | { |
| 550 | struct net_device *netdev = adapter->netdev; |
| 551 | u16 phy_data = 0; |
| 552 | |
| 553 | spin_lock(&adapter->stats_lock); |
| 554 | atl2_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data); |
| 555 | atl2_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data); |
| 556 | spin_unlock(&adapter->stats_lock); |
| 557 | |
| 558 | /* notify upper layer link down ASAP */ |
| 559 | if (!(phy_data & BMSR_LSTATUS)) { /* Link Down */ |
| 560 | if (netif_carrier_ok(netdev)) { /* old link state: Up */ |
| 561 | printk(KERN_INFO "%s: %s NIC Link is Down\n", |
| 562 | atl2_driver_name, netdev->name); |
| 563 | adapter->link_speed = SPEED_0; |
| 564 | netif_carrier_off(netdev); |
| 565 | netif_stop_queue(netdev); |
| 566 | } |
| 567 | } |
| 568 | schedule_work(&adapter->link_chg_task); |
| 569 | } |
| 570 | |
| 571 | static inline void atl2_clear_phy_int(struct atl2_adapter *adapter) |
| 572 | { |
| 573 | u16 phy_data; |
| 574 | spin_lock(&adapter->stats_lock); |
| 575 | atl2_read_phy_reg(&adapter->hw, 19, &phy_data); |
| 576 | spin_unlock(&adapter->stats_lock); |
| 577 | } |
| 578 | |
| 579 | /* |
| 580 | * atl2_intr - Interrupt Handler |
| 581 | * @irq: interrupt number |
| 582 | * @data: pointer to a network interface device structure |
| 583 | * @pt_regs: CPU registers structure |
| 584 | */ |
| 585 | static irqreturn_t atl2_intr(int irq, void *data) |
| 586 | { |
| 587 | struct atl2_adapter *adapter = netdev_priv(data); |
| 588 | struct atl2_hw *hw = &adapter->hw; |
| 589 | u32 status; |
| 590 | |
| 591 | status = ATL2_READ_REG(hw, REG_ISR); |
| 592 | if (0 == status) |
| 593 | return IRQ_NONE; |
| 594 | |
| 595 | /* link event */ |
| 596 | if (status & ISR_PHY) |
| 597 | atl2_clear_phy_int(adapter); |
| 598 | |
| 599 | /* clear ISR status, and Enable CMB DMA/Disable Interrupt */ |
| 600 | ATL2_WRITE_REG(hw, REG_ISR, status | ISR_DIS_INT); |
| 601 | |
| 602 | /* check if PCIE PHY Link down */ |
| 603 | if (status & ISR_PHY_LINKDOWN) { |
| 604 | if (netif_running(adapter->netdev)) { /* reset MAC */ |
| 605 | ATL2_WRITE_REG(hw, REG_ISR, 0); |
| 606 | ATL2_WRITE_REG(hw, REG_IMR, 0); |
| 607 | ATL2_WRITE_FLUSH(hw); |
| 608 | schedule_work(&adapter->reset_task); |
| 609 | return IRQ_HANDLED; |
| 610 | } |
| 611 | } |
| 612 | |
| 613 | /* check if DMA read/write error? */ |
| 614 | if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) { |
| 615 | ATL2_WRITE_REG(hw, REG_ISR, 0); |
| 616 | ATL2_WRITE_REG(hw, REG_IMR, 0); |
| 617 | ATL2_WRITE_FLUSH(hw); |
| 618 | schedule_work(&adapter->reset_task); |
| 619 | return IRQ_HANDLED; |
| 620 | } |
| 621 | |
| 622 | /* link event */ |
| 623 | if (status & (ISR_PHY | ISR_MANUAL)) { |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 624 | adapter->netdev->stats.tx_carrier_errors++; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 625 | atl2_check_for_link(adapter); |
| 626 | } |
| 627 | |
| 628 | /* transmit event */ |
| 629 | if (status & ISR_TX_EVENT) |
| 630 | atl2_intr_tx(adapter); |
| 631 | |
| 632 | /* rx exception */ |
| 633 | if (status & ISR_RX_EVENT) |
| 634 | atl2_intr_rx(adapter); |
| 635 | |
| 636 | /* re-enable Interrupt */ |
| 637 | ATL2_WRITE_REG(&adapter->hw, REG_ISR, 0); |
| 638 | return IRQ_HANDLED; |
| 639 | } |
| 640 | |
| 641 | static int atl2_request_irq(struct atl2_adapter *adapter) |
| 642 | { |
| 643 | struct net_device *netdev = adapter->netdev; |
| 644 | int flags, err = 0; |
| 645 | |
| 646 | flags = IRQF_SHARED; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 647 | adapter->have_msi = true; |
| 648 | err = pci_enable_msi(adapter->pdev); |
| 649 | if (err) |
| 650 | adapter->have_msi = false; |
| 651 | |
| 652 | if (adapter->have_msi) |
| 653 | flags &= ~IRQF_SHARED; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 654 | |
| 655 | return request_irq(adapter->pdev->irq, &atl2_intr, flags, netdev->name, |
| 656 | netdev); |
| 657 | } |
| 658 | |
| 659 | /* |
| 660 | * atl2_free_ring_resources - Free Tx / RX descriptor Resources |
| 661 | * @adapter: board private structure |
| 662 | * |
| 663 | * Free all transmit software resources |
| 664 | */ |
| 665 | static void atl2_free_ring_resources(struct atl2_adapter *adapter) |
| 666 | { |
| 667 | struct pci_dev *pdev = adapter->pdev; |
| 668 | pci_free_consistent(pdev, adapter->ring_size, adapter->ring_vir_addr, |
| 669 | adapter->ring_dma); |
| 670 | } |
| 671 | |
| 672 | /* |
| 673 | * atl2_open - Called when a network interface is made active |
| 674 | * @netdev: network interface device structure |
| 675 | * |
| 676 | * Returns 0 on success, negative value on failure |
| 677 | * |
| 678 | * The open entry point is called when a network interface is made |
| 679 | * active by the system (IFF_UP). At this point all resources needed |
| 680 | * for transmit and receive operations are allocated, the interrupt |
| 681 | * handler is registered with the OS, the watchdog timer is started, |
| 682 | * and the stack is notified that the interface is ready. |
| 683 | */ |
| 684 | static int atl2_open(struct net_device *netdev) |
| 685 | { |
| 686 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 687 | int err; |
| 688 | u32 val; |
| 689 | |
| 690 | /* disallow open during test */ |
| 691 | if (test_bit(__ATL2_TESTING, &adapter->flags)) |
| 692 | return -EBUSY; |
| 693 | |
| 694 | /* allocate transmit descriptors */ |
| 695 | err = atl2_setup_ring_resources(adapter); |
| 696 | if (err) |
| 697 | return err; |
| 698 | |
| 699 | err = atl2_init_hw(&adapter->hw); |
| 700 | if (err) { |
| 701 | err = -EIO; |
| 702 | goto err_init_hw; |
| 703 | } |
| 704 | |
| 705 | /* hardware has been reset, we need to reload some things */ |
| 706 | atl2_set_multi(netdev); |
| 707 | init_ring_ptrs(adapter); |
| 708 | |
| 709 | #ifdef NETIF_F_HW_VLAN_TX |
| 710 | atl2_restore_vlan(adapter); |
| 711 | #endif |
| 712 | |
| 713 | if (atl2_configure(adapter)) { |
| 714 | err = -EIO; |
| 715 | goto err_config; |
| 716 | } |
| 717 | |
| 718 | err = atl2_request_irq(adapter); |
| 719 | if (err) |
| 720 | goto err_req_irq; |
| 721 | |
| 722 | clear_bit(__ATL2_DOWN, &adapter->flags); |
| 723 | |
Stephen Hemminger | e053b62 | 2008-10-31 16:52:04 -0700 | [diff] [blame] | 724 | mod_timer(&adapter->watchdog_timer, round_jiffies(jiffies + 4*HZ)); |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 725 | |
| 726 | val = ATL2_READ_REG(&adapter->hw, REG_MASTER_CTRL); |
| 727 | ATL2_WRITE_REG(&adapter->hw, REG_MASTER_CTRL, |
| 728 | val | MASTER_CTRL_MANUAL_INT); |
| 729 | |
| 730 | atl2_irq_enable(adapter); |
| 731 | |
| 732 | return 0; |
| 733 | |
| 734 | err_init_hw: |
| 735 | err_req_irq: |
| 736 | err_config: |
| 737 | atl2_free_ring_resources(adapter); |
| 738 | atl2_reset_hw(&adapter->hw); |
| 739 | |
| 740 | return err; |
| 741 | } |
| 742 | |
| 743 | static void atl2_down(struct atl2_adapter *adapter) |
| 744 | { |
| 745 | struct net_device *netdev = adapter->netdev; |
| 746 | |
| 747 | /* signal that we're down so the interrupt handler does not |
| 748 | * reschedule our watchdog timer */ |
| 749 | set_bit(__ATL2_DOWN, &adapter->flags); |
| 750 | |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 751 | netif_tx_disable(netdev); |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 752 | |
| 753 | /* reset MAC to disable all RX/TX */ |
| 754 | atl2_reset_hw(&adapter->hw); |
| 755 | msleep(1); |
| 756 | |
| 757 | atl2_irq_disable(adapter); |
| 758 | |
| 759 | del_timer_sync(&adapter->watchdog_timer); |
| 760 | del_timer_sync(&adapter->phy_config_timer); |
| 761 | clear_bit(0, &adapter->cfg_phy); |
| 762 | |
| 763 | netif_carrier_off(netdev); |
| 764 | adapter->link_speed = SPEED_0; |
| 765 | adapter->link_duplex = -1; |
| 766 | } |
| 767 | |
| 768 | static void atl2_free_irq(struct atl2_adapter *adapter) |
| 769 | { |
| 770 | struct net_device *netdev = adapter->netdev; |
| 771 | |
| 772 | free_irq(adapter->pdev->irq, netdev); |
| 773 | |
| 774 | #ifdef CONFIG_PCI_MSI |
| 775 | if (adapter->have_msi) |
| 776 | pci_disable_msi(adapter->pdev); |
| 777 | #endif |
| 778 | } |
| 779 | |
| 780 | /* |
| 781 | * atl2_close - Disables a network interface |
| 782 | * @netdev: network interface device structure |
| 783 | * |
| 784 | * Returns 0, this is not allowed to fail |
| 785 | * |
| 786 | * The close entry point is called when an interface is de-activated |
| 787 | * by the OS. The hardware is still under the drivers control, but |
| 788 | * needs to be disabled. A global MAC reset is issued to stop the |
| 789 | * hardware, and all transmit and receive resources are freed. |
| 790 | */ |
| 791 | static int atl2_close(struct net_device *netdev) |
| 792 | { |
| 793 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 794 | |
| 795 | WARN_ON(test_bit(__ATL2_RESETTING, &adapter->flags)); |
| 796 | |
| 797 | atl2_down(adapter); |
| 798 | atl2_free_irq(adapter); |
| 799 | atl2_free_ring_resources(adapter); |
| 800 | |
| 801 | return 0; |
| 802 | } |
| 803 | |
| 804 | static inline int TxsFreeUnit(struct atl2_adapter *adapter) |
| 805 | { |
| 806 | u32 txs_write_ptr = (u32) atomic_read(&adapter->txs_write_ptr); |
| 807 | |
| 808 | return (adapter->txs_next_clear >= txs_write_ptr) ? |
| 809 | (int) (adapter->txs_ring_size - adapter->txs_next_clear + |
| 810 | txs_write_ptr - 1) : |
| 811 | (int) (txs_write_ptr - adapter->txs_next_clear - 1); |
| 812 | } |
| 813 | |
| 814 | static inline int TxdFreeBytes(struct atl2_adapter *adapter) |
| 815 | { |
| 816 | u32 txd_read_ptr = (u32)atomic_read(&adapter->txd_read_ptr); |
| 817 | |
| 818 | return (adapter->txd_write_ptr >= txd_read_ptr) ? |
| 819 | (int) (adapter->txd_ring_size - adapter->txd_write_ptr + |
| 820 | txd_read_ptr - 1) : |
| 821 | (int) (txd_read_ptr - adapter->txd_write_ptr - 1); |
| 822 | } |
| 823 | |
| 824 | static int atl2_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
| 825 | { |
| 826 | struct atl2_adapter *adapter = netdev_priv(netdev); |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 827 | struct tx_pkt_header *txph; |
| 828 | u32 offset, copy_len; |
| 829 | int txs_unused; |
| 830 | int txbuf_unused; |
| 831 | |
| 832 | if (test_bit(__ATL2_DOWN, &adapter->flags)) { |
| 833 | dev_kfree_skb_any(skb); |
| 834 | return NETDEV_TX_OK; |
| 835 | } |
| 836 | |
| 837 | if (unlikely(skb->len <= 0)) { |
| 838 | dev_kfree_skb_any(skb); |
| 839 | return NETDEV_TX_OK; |
| 840 | } |
| 841 | |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 842 | txs_unused = TxsFreeUnit(adapter); |
| 843 | txbuf_unused = TxdFreeBytes(adapter); |
| 844 | |
| 845 | if (skb->len + sizeof(struct tx_pkt_header) + 4 > txbuf_unused || |
| 846 | txs_unused < 1) { |
| 847 | /* not enough resources */ |
| 848 | netif_stop_queue(netdev); |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 849 | return NETDEV_TX_BUSY; |
| 850 | } |
| 851 | |
| 852 | offset = adapter->txd_write_ptr; |
| 853 | |
| 854 | txph = (struct tx_pkt_header *) (((u8 *)adapter->txd_ring) + offset); |
| 855 | |
| 856 | *(u32 *)txph = 0; |
| 857 | txph->pkt_size = skb->len; |
| 858 | |
| 859 | offset += 4; |
| 860 | if (offset >= adapter->txd_ring_size) |
| 861 | offset -= adapter->txd_ring_size; |
| 862 | copy_len = adapter->txd_ring_size - offset; |
| 863 | if (copy_len >= skb->len) { |
| 864 | memcpy(((u8 *)adapter->txd_ring) + offset, skb->data, skb->len); |
| 865 | offset += ((u32)(skb->len + 3) & ~3); |
| 866 | } else { |
| 867 | memcpy(((u8 *)adapter->txd_ring)+offset, skb->data, copy_len); |
| 868 | memcpy((u8 *)adapter->txd_ring, skb->data+copy_len, |
| 869 | skb->len-copy_len); |
| 870 | offset = ((u32)(skb->len-copy_len + 3) & ~3); |
| 871 | } |
| 872 | #ifdef NETIF_F_HW_VLAN_TX |
| 873 | if (adapter->vlgrp && vlan_tx_tag_present(skb)) { |
| 874 | u16 vlan_tag = vlan_tx_tag_get(skb); |
| 875 | vlan_tag = (vlan_tag << 4) | |
| 876 | (vlan_tag >> 13) | |
| 877 | ((vlan_tag >> 9) & 0x8); |
| 878 | txph->ins_vlan = 1; |
| 879 | txph->vlan = vlan_tag; |
| 880 | } |
| 881 | #endif |
| 882 | if (offset >= adapter->txd_ring_size) |
| 883 | offset -= adapter->txd_ring_size; |
| 884 | adapter->txd_write_ptr = offset; |
| 885 | |
| 886 | /* clear txs before send */ |
| 887 | adapter->txs_ring[adapter->txs_next_clear].update = 0; |
| 888 | if (++adapter->txs_next_clear == adapter->txs_ring_size) |
| 889 | adapter->txs_next_clear = 0; |
| 890 | |
| 891 | ATL2_WRITE_REGW(&adapter->hw, REG_MB_TXD_WR_IDX, |
| 892 | (adapter->txd_write_ptr >> 2)); |
| 893 | |
Kevin Hao | 87241840 | 2008-09-25 16:20:11 +0000 | [diff] [blame] | 894 | mmiowb(); |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 895 | netdev->trans_start = jiffies; |
| 896 | dev_kfree_skb_any(skb); |
| 897 | return NETDEV_TX_OK; |
| 898 | } |
| 899 | |
| 900 | /* |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 901 | * atl2_change_mtu - Change the Maximum Transfer Unit |
| 902 | * @netdev: network interface device structure |
| 903 | * @new_mtu: new value for maximum frame size |
| 904 | * |
| 905 | * Returns 0 on success, negative on failure |
| 906 | */ |
| 907 | static int atl2_change_mtu(struct net_device *netdev, int new_mtu) |
| 908 | { |
| 909 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 910 | struct atl2_hw *hw = &adapter->hw; |
| 911 | |
| 912 | if ((new_mtu < 40) || (new_mtu > (ETH_DATA_LEN + VLAN_SIZE))) |
| 913 | return -EINVAL; |
| 914 | |
| 915 | /* set MTU */ |
| 916 | if (hw->max_frame_size != new_mtu) { |
| 917 | netdev->mtu = new_mtu; |
| 918 | ATL2_WRITE_REG(hw, REG_MTU, new_mtu + ENET_HEADER_SIZE + |
| 919 | VLAN_SIZE + ETHERNET_FCS_SIZE); |
| 920 | } |
| 921 | |
| 922 | return 0; |
| 923 | } |
| 924 | |
| 925 | /* |
| 926 | * atl2_set_mac - Change the Ethernet Address of the NIC |
| 927 | * @netdev: network interface device structure |
| 928 | * @p: pointer to an address structure |
| 929 | * |
| 930 | * Returns 0 on success, negative on failure |
| 931 | */ |
| 932 | static int atl2_set_mac(struct net_device *netdev, void *p) |
| 933 | { |
| 934 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 935 | struct sockaddr *addr = p; |
| 936 | |
| 937 | if (!is_valid_ether_addr(addr->sa_data)) |
| 938 | return -EADDRNOTAVAIL; |
| 939 | |
| 940 | if (netif_running(netdev)) |
| 941 | return -EBUSY; |
| 942 | |
| 943 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
| 944 | memcpy(adapter->hw.mac_addr, addr->sa_data, netdev->addr_len); |
| 945 | |
| 946 | atl2_set_mac_addr(&adapter->hw); |
| 947 | |
| 948 | return 0; |
| 949 | } |
| 950 | |
| 951 | /* |
| 952 | * atl2_mii_ioctl - |
| 953 | * @netdev: |
| 954 | * @ifreq: |
| 955 | * @cmd: |
| 956 | */ |
| 957 | static int atl2_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) |
| 958 | { |
| 959 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 960 | struct mii_ioctl_data *data = if_mii(ifr); |
| 961 | unsigned long flags; |
| 962 | |
| 963 | switch (cmd) { |
| 964 | case SIOCGMIIPHY: |
| 965 | data->phy_id = 0; |
| 966 | break; |
| 967 | case SIOCGMIIREG: |
| 968 | if (!capable(CAP_NET_ADMIN)) |
| 969 | return -EPERM; |
| 970 | spin_lock_irqsave(&adapter->stats_lock, flags); |
| 971 | if (atl2_read_phy_reg(&adapter->hw, |
| 972 | data->reg_num & 0x1F, &data->val_out)) { |
| 973 | spin_unlock_irqrestore(&adapter->stats_lock, flags); |
| 974 | return -EIO; |
| 975 | } |
| 976 | spin_unlock_irqrestore(&adapter->stats_lock, flags); |
| 977 | break; |
| 978 | case SIOCSMIIREG: |
| 979 | if (!capable(CAP_NET_ADMIN)) |
| 980 | return -EPERM; |
| 981 | if (data->reg_num & ~(0x1F)) |
| 982 | return -EFAULT; |
| 983 | spin_lock_irqsave(&adapter->stats_lock, flags); |
| 984 | if (atl2_write_phy_reg(&adapter->hw, data->reg_num, |
| 985 | data->val_in)) { |
| 986 | spin_unlock_irqrestore(&adapter->stats_lock, flags); |
| 987 | return -EIO; |
| 988 | } |
| 989 | spin_unlock_irqrestore(&adapter->stats_lock, flags); |
| 990 | break; |
| 991 | default: |
| 992 | return -EOPNOTSUPP; |
| 993 | } |
| 994 | return 0; |
| 995 | } |
| 996 | |
| 997 | /* |
| 998 | * atl2_ioctl - |
| 999 | * @netdev: |
| 1000 | * @ifreq: |
| 1001 | * @cmd: |
| 1002 | */ |
| 1003 | static int atl2_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) |
| 1004 | { |
| 1005 | switch (cmd) { |
| 1006 | case SIOCGMIIPHY: |
| 1007 | case SIOCGMIIREG: |
| 1008 | case SIOCSMIIREG: |
| 1009 | return atl2_mii_ioctl(netdev, ifr, cmd); |
| 1010 | #ifdef ETHTOOL_OPS_COMPAT |
| 1011 | case SIOCETHTOOL: |
| 1012 | return ethtool_ioctl(ifr); |
| 1013 | #endif |
| 1014 | default: |
| 1015 | return -EOPNOTSUPP; |
| 1016 | } |
| 1017 | } |
| 1018 | |
| 1019 | /* |
| 1020 | * atl2_tx_timeout - Respond to a Tx Hang |
| 1021 | * @netdev: network interface device structure |
| 1022 | */ |
| 1023 | static void atl2_tx_timeout(struct net_device *netdev) |
| 1024 | { |
| 1025 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 1026 | |
| 1027 | /* Do the reset outside of interrupt context */ |
| 1028 | schedule_work(&adapter->reset_task); |
| 1029 | } |
| 1030 | |
| 1031 | /* |
| 1032 | * atl2_watchdog - Timer Call-back |
| 1033 | * @data: pointer to netdev cast into an unsigned long |
| 1034 | */ |
| 1035 | static void atl2_watchdog(unsigned long data) |
| 1036 | { |
| 1037 | struct atl2_adapter *adapter = (struct atl2_adapter *) data; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1038 | |
| 1039 | if (!test_bit(__ATL2_DOWN, &adapter->flags)) { |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 1040 | u32 drop_rxd, drop_rxs; |
| 1041 | unsigned long flags; |
| 1042 | |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1043 | spin_lock_irqsave(&adapter->stats_lock, flags); |
| 1044 | drop_rxd = ATL2_READ_REG(&adapter->hw, REG_STS_RXD_OV); |
| 1045 | drop_rxs = ATL2_READ_REG(&adapter->hw, REG_STS_RXS_OV); |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1046 | spin_unlock_irqrestore(&adapter->stats_lock, flags); |
| 1047 | |
Stephen Hemminger | 02e7173 | 2008-10-31 16:52:03 -0700 | [diff] [blame] | 1048 | adapter->netdev->stats.rx_over_errors += drop_rxd + drop_rxs; |
| 1049 | |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1050 | /* Reset the timer */ |
Stephen Hemminger | e053b62 | 2008-10-31 16:52:04 -0700 | [diff] [blame] | 1051 | mod_timer(&adapter->watchdog_timer, |
| 1052 | round_jiffies(jiffies + 4 * HZ)); |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1053 | } |
| 1054 | } |
| 1055 | |
| 1056 | /* |
| 1057 | * atl2_phy_config - Timer Call-back |
| 1058 | * @data: pointer to netdev cast into an unsigned long |
| 1059 | */ |
| 1060 | static void atl2_phy_config(unsigned long data) |
| 1061 | { |
| 1062 | struct atl2_adapter *adapter = (struct atl2_adapter *) data; |
| 1063 | struct atl2_hw *hw = &adapter->hw; |
| 1064 | unsigned long flags; |
| 1065 | |
| 1066 | spin_lock_irqsave(&adapter->stats_lock, flags); |
| 1067 | atl2_write_phy_reg(hw, MII_ADVERTISE, hw->mii_autoneg_adv_reg); |
| 1068 | atl2_write_phy_reg(hw, MII_BMCR, MII_CR_RESET | MII_CR_AUTO_NEG_EN | |
| 1069 | MII_CR_RESTART_AUTO_NEG); |
| 1070 | spin_unlock_irqrestore(&adapter->stats_lock, flags); |
| 1071 | clear_bit(0, &adapter->cfg_phy); |
| 1072 | } |
| 1073 | |
| 1074 | static int atl2_up(struct atl2_adapter *adapter) |
| 1075 | { |
| 1076 | struct net_device *netdev = adapter->netdev; |
| 1077 | int err = 0; |
| 1078 | u32 val; |
| 1079 | |
| 1080 | /* hardware has been reset, we need to reload some things */ |
| 1081 | |
| 1082 | err = atl2_init_hw(&adapter->hw); |
| 1083 | if (err) { |
| 1084 | err = -EIO; |
| 1085 | return err; |
| 1086 | } |
| 1087 | |
| 1088 | atl2_set_multi(netdev); |
| 1089 | init_ring_ptrs(adapter); |
| 1090 | |
| 1091 | #ifdef NETIF_F_HW_VLAN_TX |
| 1092 | atl2_restore_vlan(adapter); |
| 1093 | #endif |
| 1094 | |
| 1095 | if (atl2_configure(adapter)) { |
| 1096 | err = -EIO; |
| 1097 | goto err_up; |
| 1098 | } |
| 1099 | |
| 1100 | clear_bit(__ATL2_DOWN, &adapter->flags); |
| 1101 | |
| 1102 | val = ATL2_READ_REG(&adapter->hw, REG_MASTER_CTRL); |
| 1103 | ATL2_WRITE_REG(&adapter->hw, REG_MASTER_CTRL, val | |
| 1104 | MASTER_CTRL_MANUAL_INT); |
| 1105 | |
| 1106 | atl2_irq_enable(adapter); |
| 1107 | |
| 1108 | err_up: |
| 1109 | return err; |
| 1110 | } |
| 1111 | |
| 1112 | static void atl2_reinit_locked(struct atl2_adapter *adapter) |
| 1113 | { |
| 1114 | WARN_ON(in_interrupt()); |
| 1115 | while (test_and_set_bit(__ATL2_RESETTING, &adapter->flags)) |
| 1116 | msleep(1); |
| 1117 | atl2_down(adapter); |
| 1118 | atl2_up(adapter); |
| 1119 | clear_bit(__ATL2_RESETTING, &adapter->flags); |
| 1120 | } |
| 1121 | |
| 1122 | static void atl2_reset_task(struct work_struct *work) |
| 1123 | { |
| 1124 | struct atl2_adapter *adapter; |
| 1125 | adapter = container_of(work, struct atl2_adapter, reset_task); |
| 1126 | |
| 1127 | atl2_reinit_locked(adapter); |
| 1128 | } |
| 1129 | |
| 1130 | static void atl2_setup_mac_ctrl(struct atl2_adapter *adapter) |
| 1131 | { |
| 1132 | u32 value; |
| 1133 | struct atl2_hw *hw = &adapter->hw; |
| 1134 | struct net_device *netdev = adapter->netdev; |
| 1135 | |
| 1136 | /* Config MAC CTRL Register */ |
| 1137 | value = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN | MAC_CTRL_MACLP_CLK_PHY; |
| 1138 | |
| 1139 | /* duplex */ |
| 1140 | if (FULL_DUPLEX == adapter->link_duplex) |
| 1141 | value |= MAC_CTRL_DUPLX; |
| 1142 | |
| 1143 | /* flow control */ |
| 1144 | value |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW); |
| 1145 | |
| 1146 | /* PAD & CRC */ |
| 1147 | value |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD); |
| 1148 | |
| 1149 | /* preamble length */ |
| 1150 | value |= (((u32)adapter->hw.preamble_len & MAC_CTRL_PRMLEN_MASK) << |
| 1151 | MAC_CTRL_PRMLEN_SHIFT); |
| 1152 | |
| 1153 | /* vlan */ |
| 1154 | if (adapter->vlgrp) |
| 1155 | value |= MAC_CTRL_RMV_VLAN; |
| 1156 | |
| 1157 | /* filter mode */ |
| 1158 | value |= MAC_CTRL_BC_EN; |
| 1159 | if (netdev->flags & IFF_PROMISC) |
| 1160 | value |= MAC_CTRL_PROMIS_EN; |
| 1161 | else if (netdev->flags & IFF_ALLMULTI) |
| 1162 | value |= MAC_CTRL_MC_ALL_EN; |
| 1163 | |
| 1164 | /* half retry buffer */ |
| 1165 | value |= (((u32)(adapter->hw.retry_buf & |
| 1166 | MAC_CTRL_HALF_LEFT_BUF_MASK)) << MAC_CTRL_HALF_LEFT_BUF_SHIFT); |
| 1167 | |
| 1168 | ATL2_WRITE_REG(hw, REG_MAC_CTRL, value); |
| 1169 | } |
| 1170 | |
| 1171 | static int atl2_check_link(struct atl2_adapter *adapter) |
| 1172 | { |
| 1173 | struct atl2_hw *hw = &adapter->hw; |
| 1174 | struct net_device *netdev = adapter->netdev; |
| 1175 | int ret_val; |
| 1176 | u16 speed, duplex, phy_data; |
| 1177 | int reconfig = 0; |
| 1178 | |
| 1179 | /* MII_BMSR must read twise */ |
| 1180 | atl2_read_phy_reg(hw, MII_BMSR, &phy_data); |
| 1181 | atl2_read_phy_reg(hw, MII_BMSR, &phy_data); |
| 1182 | if (!(phy_data&BMSR_LSTATUS)) { /* link down */ |
| 1183 | if (netif_carrier_ok(netdev)) { /* old link state: Up */ |
| 1184 | u32 value; |
| 1185 | /* disable rx */ |
| 1186 | value = ATL2_READ_REG(hw, REG_MAC_CTRL); |
| 1187 | value &= ~MAC_CTRL_RX_EN; |
| 1188 | ATL2_WRITE_REG(hw, REG_MAC_CTRL, value); |
| 1189 | adapter->link_speed = SPEED_0; |
| 1190 | netif_carrier_off(netdev); |
| 1191 | netif_stop_queue(netdev); |
| 1192 | } |
| 1193 | return 0; |
| 1194 | } |
| 1195 | |
| 1196 | /* Link Up */ |
| 1197 | ret_val = atl2_get_speed_and_duplex(hw, &speed, &duplex); |
| 1198 | if (ret_val) |
| 1199 | return ret_val; |
| 1200 | switch (hw->MediaType) { |
| 1201 | case MEDIA_TYPE_100M_FULL: |
| 1202 | if (speed != SPEED_100 || duplex != FULL_DUPLEX) |
| 1203 | reconfig = 1; |
| 1204 | break; |
| 1205 | case MEDIA_TYPE_100M_HALF: |
| 1206 | if (speed != SPEED_100 || duplex != HALF_DUPLEX) |
| 1207 | reconfig = 1; |
| 1208 | break; |
| 1209 | case MEDIA_TYPE_10M_FULL: |
| 1210 | if (speed != SPEED_10 || duplex != FULL_DUPLEX) |
| 1211 | reconfig = 1; |
| 1212 | break; |
| 1213 | case MEDIA_TYPE_10M_HALF: |
| 1214 | if (speed != SPEED_10 || duplex != HALF_DUPLEX) |
| 1215 | reconfig = 1; |
| 1216 | break; |
| 1217 | } |
| 1218 | /* link result is our setting */ |
| 1219 | if (reconfig == 0) { |
| 1220 | if (adapter->link_speed != speed || |
| 1221 | adapter->link_duplex != duplex) { |
| 1222 | adapter->link_speed = speed; |
| 1223 | adapter->link_duplex = duplex; |
| 1224 | atl2_setup_mac_ctrl(adapter); |
| 1225 | printk(KERN_INFO "%s: %s NIC Link is Up<%d Mbps %s>\n", |
| 1226 | atl2_driver_name, netdev->name, |
| 1227 | adapter->link_speed, |
| 1228 | adapter->link_duplex == FULL_DUPLEX ? |
| 1229 | "Full Duplex" : "Half Duplex"); |
| 1230 | } |
| 1231 | |
| 1232 | if (!netif_carrier_ok(netdev)) { /* Link down -> Up */ |
| 1233 | netif_carrier_on(netdev); |
| 1234 | netif_wake_queue(netdev); |
| 1235 | } |
| 1236 | return 0; |
| 1237 | } |
| 1238 | |
| 1239 | /* change original link status */ |
| 1240 | if (netif_carrier_ok(netdev)) { |
| 1241 | u32 value; |
| 1242 | /* disable rx */ |
| 1243 | value = ATL2_READ_REG(hw, REG_MAC_CTRL); |
| 1244 | value &= ~MAC_CTRL_RX_EN; |
| 1245 | ATL2_WRITE_REG(hw, REG_MAC_CTRL, value); |
| 1246 | |
| 1247 | adapter->link_speed = SPEED_0; |
| 1248 | netif_carrier_off(netdev); |
| 1249 | netif_stop_queue(netdev); |
| 1250 | } |
| 1251 | |
| 1252 | /* auto-neg, insert timer to re-config phy |
| 1253 | * (if interval smaller than 5 seconds, something strange) */ |
| 1254 | if (!test_bit(__ATL2_DOWN, &adapter->flags)) { |
| 1255 | if (!test_and_set_bit(0, &adapter->cfg_phy)) |
Stephen Hemminger | e053b62 | 2008-10-31 16:52:04 -0700 | [diff] [blame] | 1256 | mod_timer(&adapter->phy_config_timer, |
| 1257 | round_jiffies(jiffies + 5 * HZ)); |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1258 | } |
| 1259 | |
| 1260 | return 0; |
| 1261 | } |
| 1262 | |
| 1263 | /* |
| 1264 | * atl2_link_chg_task - deal with link change event Out of interrupt context |
| 1265 | * @netdev: network interface device structure |
| 1266 | */ |
| 1267 | static void atl2_link_chg_task(struct work_struct *work) |
| 1268 | { |
| 1269 | struct atl2_adapter *adapter; |
| 1270 | unsigned long flags; |
| 1271 | |
| 1272 | adapter = container_of(work, struct atl2_adapter, link_chg_task); |
| 1273 | |
| 1274 | spin_lock_irqsave(&adapter->stats_lock, flags); |
| 1275 | atl2_check_link(adapter); |
| 1276 | spin_unlock_irqrestore(&adapter->stats_lock, flags); |
| 1277 | } |
| 1278 | |
| 1279 | static void atl2_setup_pcicmd(struct pci_dev *pdev) |
| 1280 | { |
| 1281 | u16 cmd; |
| 1282 | |
| 1283 | pci_read_config_word(pdev, PCI_COMMAND, &cmd); |
| 1284 | |
| 1285 | if (cmd & PCI_COMMAND_INTX_DISABLE) |
| 1286 | cmd &= ~PCI_COMMAND_INTX_DISABLE; |
| 1287 | if (cmd & PCI_COMMAND_IO) |
| 1288 | cmd &= ~PCI_COMMAND_IO; |
| 1289 | if (0 == (cmd & PCI_COMMAND_MEMORY)) |
| 1290 | cmd |= PCI_COMMAND_MEMORY; |
| 1291 | if (0 == (cmd & PCI_COMMAND_MASTER)) |
| 1292 | cmd |= PCI_COMMAND_MASTER; |
| 1293 | pci_write_config_word(pdev, PCI_COMMAND, cmd); |
| 1294 | |
| 1295 | /* |
| 1296 | * some motherboards BIOS(PXE/EFI) driver may set PME |
| 1297 | * while they transfer control to OS (Windows/Linux) |
| 1298 | * so we should clear this bit before NIC work normally |
| 1299 | */ |
| 1300 | pci_write_config_dword(pdev, REG_PM_CTRLSTAT, 0); |
| 1301 | } |
| 1302 | |
Kevin Hao | 8d1b1fc | 2008-09-19 21:56:44 +0000 | [diff] [blame] | 1303 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 1304 | static void atl2_poll_controller(struct net_device *netdev) |
| 1305 | { |
| 1306 | disable_irq(netdev->irq); |
| 1307 | atl2_intr(netdev->irq, netdev); |
| 1308 | enable_irq(netdev->irq); |
| 1309 | } |
| 1310 | #endif |
| 1311 | |
Stephen Hemminger | 825a84d | 2008-11-19 22:14:17 -0800 | [diff] [blame] | 1312 | |
| 1313 | static const struct net_device_ops atl2_netdev_ops = { |
| 1314 | .ndo_open = atl2_open, |
| 1315 | .ndo_stop = atl2_close, |
Stephen Hemminger | 0082982 | 2008-11-20 20:14:53 -0800 | [diff] [blame] | 1316 | .ndo_start_xmit = atl2_xmit_frame, |
Stephen Hemminger | 825a84d | 2008-11-19 22:14:17 -0800 | [diff] [blame] | 1317 | .ndo_set_multicast_list = atl2_set_multi, |
| 1318 | .ndo_validate_addr = eth_validate_addr, |
| 1319 | .ndo_set_mac_address = atl2_set_mac, |
| 1320 | .ndo_change_mtu = atl2_change_mtu, |
| 1321 | .ndo_do_ioctl = atl2_ioctl, |
| 1322 | .ndo_tx_timeout = atl2_tx_timeout, |
| 1323 | .ndo_vlan_rx_register = atl2_vlan_rx_register, |
| 1324 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 1325 | .ndo_poll_controller = atl2_poll_controller, |
| 1326 | #endif |
| 1327 | }; |
| 1328 | |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1329 | /* |
| 1330 | * atl2_probe - Device Initialization Routine |
| 1331 | * @pdev: PCI device information struct |
| 1332 | * @ent: entry in atl2_pci_tbl |
| 1333 | * |
| 1334 | * Returns 0 on success, negative on failure |
| 1335 | * |
| 1336 | * atl2_probe initializes an adapter identified by a pci_dev structure. |
| 1337 | * The OS initialization, configuring of the adapter private structure, |
| 1338 | * and a hardware reset occur. |
| 1339 | */ |
| 1340 | static int __devinit atl2_probe(struct pci_dev *pdev, |
| 1341 | const struct pci_device_id *ent) |
| 1342 | { |
| 1343 | struct net_device *netdev; |
| 1344 | struct atl2_adapter *adapter; |
| 1345 | static int cards_found; |
| 1346 | unsigned long mmio_start; |
| 1347 | int mmio_len; |
| 1348 | int err; |
| 1349 | |
| 1350 | cards_found = 0; |
| 1351 | |
| 1352 | err = pci_enable_device(pdev); |
| 1353 | if (err) |
| 1354 | return err; |
| 1355 | |
| 1356 | /* |
| 1357 | * atl2 is a shared-high-32-bit device, so we're stuck with 32-bit DMA |
| 1358 | * until the kernel has the proper infrastructure to support 64-bit DMA |
| 1359 | * on these devices. |
| 1360 | */ |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 1361 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) && |
| 1362 | pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) { |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1363 | printk(KERN_ERR "atl2: No usable DMA configuration, aborting\n"); |
| 1364 | goto err_dma; |
| 1365 | } |
| 1366 | |
| 1367 | /* Mark all PCI regions associated with PCI device |
| 1368 | * pdev as being reserved by owner atl2_driver_name */ |
| 1369 | err = pci_request_regions(pdev, atl2_driver_name); |
| 1370 | if (err) |
| 1371 | goto err_pci_reg; |
| 1372 | |
| 1373 | /* Enables bus-mastering on the device and calls |
| 1374 | * pcibios_set_master to do the needed arch specific settings */ |
| 1375 | pci_set_master(pdev); |
| 1376 | |
| 1377 | err = -ENOMEM; |
| 1378 | netdev = alloc_etherdev(sizeof(struct atl2_adapter)); |
| 1379 | if (!netdev) |
| 1380 | goto err_alloc_etherdev; |
| 1381 | |
| 1382 | SET_NETDEV_DEV(netdev, &pdev->dev); |
| 1383 | |
| 1384 | pci_set_drvdata(pdev, netdev); |
| 1385 | adapter = netdev_priv(netdev); |
| 1386 | adapter->netdev = netdev; |
| 1387 | adapter->pdev = pdev; |
| 1388 | adapter->hw.back = adapter; |
| 1389 | |
| 1390 | mmio_start = pci_resource_start(pdev, 0x0); |
| 1391 | mmio_len = pci_resource_len(pdev, 0x0); |
| 1392 | |
| 1393 | adapter->hw.mem_rang = (u32)mmio_len; |
| 1394 | adapter->hw.hw_addr = ioremap(mmio_start, mmio_len); |
| 1395 | if (!adapter->hw.hw_addr) { |
| 1396 | err = -EIO; |
| 1397 | goto err_ioremap; |
| 1398 | } |
| 1399 | |
| 1400 | atl2_setup_pcicmd(pdev); |
| 1401 | |
Stephen Hemminger | 825a84d | 2008-11-19 22:14:17 -0800 | [diff] [blame] | 1402 | netdev->netdev_ops = &atl2_netdev_ops; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1403 | atl2_set_ethtool_ops(netdev); |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1404 | netdev->watchdog_timeo = 5 * HZ; |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1405 | strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); |
| 1406 | |
| 1407 | netdev->mem_start = mmio_start; |
| 1408 | netdev->mem_end = mmio_start + mmio_len; |
| 1409 | adapter->bd_number = cards_found; |
| 1410 | adapter->pci_using_64 = false; |
| 1411 | |
| 1412 | /* setup the private structure */ |
| 1413 | err = atl2_sw_init(adapter); |
| 1414 | if (err) |
| 1415 | goto err_sw_init; |
| 1416 | |
| 1417 | err = -EIO; |
| 1418 | |
| 1419 | #ifdef NETIF_F_HW_VLAN_TX |
| 1420 | netdev->features |= (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX); |
| 1421 | #endif |
| 1422 | |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1423 | /* Init PHY as early as possible due to power saving issue */ |
| 1424 | atl2_phy_init(&adapter->hw); |
| 1425 | |
| 1426 | /* reset the controller to |
| 1427 | * put the device in a known good starting state */ |
| 1428 | |
| 1429 | if (atl2_reset_hw(&adapter->hw)) { |
| 1430 | err = -EIO; |
| 1431 | goto err_reset; |
| 1432 | } |
| 1433 | |
| 1434 | /* copy the MAC address out of the EEPROM */ |
| 1435 | atl2_read_mac_addr(&adapter->hw); |
| 1436 | memcpy(netdev->dev_addr, adapter->hw.mac_addr, netdev->addr_len); |
| 1437 | /* FIXME: do we still need this? */ |
| 1438 | #ifdef ETHTOOL_GPERMADDR |
| 1439 | memcpy(netdev->perm_addr, adapter->hw.mac_addr, netdev->addr_len); |
| 1440 | |
| 1441 | if (!is_valid_ether_addr(netdev->perm_addr)) { |
| 1442 | #else |
| 1443 | if (!is_valid_ether_addr(netdev->dev_addr)) { |
| 1444 | #endif |
| 1445 | err = -EIO; |
| 1446 | goto err_eeprom; |
| 1447 | } |
| 1448 | |
| 1449 | atl2_check_options(adapter); |
| 1450 | |
| 1451 | init_timer(&adapter->watchdog_timer); |
| 1452 | adapter->watchdog_timer.function = &atl2_watchdog; |
| 1453 | adapter->watchdog_timer.data = (unsigned long) adapter; |
| 1454 | |
| 1455 | init_timer(&adapter->phy_config_timer); |
| 1456 | adapter->phy_config_timer.function = &atl2_phy_config; |
| 1457 | adapter->phy_config_timer.data = (unsigned long) adapter; |
| 1458 | |
| 1459 | INIT_WORK(&adapter->reset_task, atl2_reset_task); |
| 1460 | INIT_WORK(&adapter->link_chg_task, atl2_link_chg_task); |
| 1461 | |
| 1462 | strcpy(netdev->name, "eth%d"); /* ?? */ |
| 1463 | err = register_netdev(netdev); |
| 1464 | if (err) |
| 1465 | goto err_register; |
| 1466 | |
| 1467 | /* assume we have no link for now */ |
| 1468 | netif_carrier_off(netdev); |
| 1469 | netif_stop_queue(netdev); |
| 1470 | |
| 1471 | cards_found++; |
| 1472 | |
| 1473 | return 0; |
| 1474 | |
| 1475 | err_reset: |
| 1476 | err_register: |
| 1477 | err_sw_init: |
| 1478 | err_eeprom: |
| 1479 | iounmap(adapter->hw.hw_addr); |
| 1480 | err_ioremap: |
| 1481 | free_netdev(netdev); |
| 1482 | err_alloc_etherdev: |
| 1483 | pci_release_regions(pdev); |
| 1484 | err_pci_reg: |
| 1485 | err_dma: |
| 1486 | pci_disable_device(pdev); |
| 1487 | return err; |
| 1488 | } |
| 1489 | |
| 1490 | /* |
| 1491 | * atl2_remove - Device Removal Routine |
| 1492 | * @pdev: PCI device information struct |
| 1493 | * |
| 1494 | * atl2_remove is called by the PCI subsystem to alert the driver |
| 1495 | * that it should release a PCI device. The could be caused by a |
| 1496 | * Hot-Plug event, or because the driver is going to be removed from |
| 1497 | * memory. |
| 1498 | */ |
| 1499 | /* FIXME: write the original MAC address back in case it was changed from a |
| 1500 | * BIOS-set value, as in atl1 -- CHS */ |
| 1501 | static void __devexit atl2_remove(struct pci_dev *pdev) |
| 1502 | { |
| 1503 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 1504 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 1505 | |
| 1506 | /* flush_scheduled work may reschedule our watchdog task, so |
| 1507 | * explicitly disable watchdog tasks from being rescheduled */ |
| 1508 | set_bit(__ATL2_DOWN, &adapter->flags); |
| 1509 | |
| 1510 | del_timer_sync(&adapter->watchdog_timer); |
| 1511 | del_timer_sync(&adapter->phy_config_timer); |
| 1512 | |
| 1513 | flush_scheduled_work(); |
| 1514 | |
| 1515 | unregister_netdev(netdev); |
| 1516 | |
| 1517 | atl2_force_ps(&adapter->hw); |
| 1518 | |
| 1519 | iounmap(adapter->hw.hw_addr); |
| 1520 | pci_release_regions(pdev); |
| 1521 | |
| 1522 | free_netdev(netdev); |
| 1523 | |
| 1524 | pci_disable_device(pdev); |
| 1525 | } |
| 1526 | |
| 1527 | static int atl2_suspend(struct pci_dev *pdev, pm_message_t state) |
| 1528 | { |
| 1529 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 1530 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 1531 | struct atl2_hw *hw = &adapter->hw; |
| 1532 | u16 speed, duplex; |
| 1533 | u32 ctrl = 0; |
| 1534 | u32 wufc = adapter->wol; |
| 1535 | |
| 1536 | #ifdef CONFIG_PM |
| 1537 | int retval = 0; |
| 1538 | #endif |
| 1539 | |
| 1540 | netif_device_detach(netdev); |
| 1541 | |
| 1542 | if (netif_running(netdev)) { |
| 1543 | WARN_ON(test_bit(__ATL2_RESETTING, &adapter->flags)); |
| 1544 | atl2_down(adapter); |
| 1545 | } |
| 1546 | |
| 1547 | #ifdef CONFIG_PM |
| 1548 | retval = pci_save_state(pdev); |
| 1549 | if (retval) |
| 1550 | return retval; |
| 1551 | #endif |
| 1552 | |
| 1553 | atl2_read_phy_reg(hw, MII_BMSR, (u16 *)&ctrl); |
| 1554 | atl2_read_phy_reg(hw, MII_BMSR, (u16 *)&ctrl); |
| 1555 | if (ctrl & BMSR_LSTATUS) |
| 1556 | wufc &= ~ATLX_WUFC_LNKC; |
| 1557 | |
| 1558 | if (0 != (ctrl & BMSR_LSTATUS) && 0 != wufc) { |
| 1559 | u32 ret_val; |
| 1560 | /* get current link speed & duplex */ |
| 1561 | ret_val = atl2_get_speed_and_duplex(hw, &speed, &duplex); |
| 1562 | if (ret_val) { |
| 1563 | printk(KERN_DEBUG |
| 1564 | "%s: get speed&duplex error while suspend\n", |
| 1565 | atl2_driver_name); |
| 1566 | goto wol_dis; |
| 1567 | } |
| 1568 | |
| 1569 | ctrl = 0; |
| 1570 | |
| 1571 | /* turn on magic packet wol */ |
| 1572 | if (wufc & ATLX_WUFC_MAG) |
| 1573 | ctrl |= (WOL_MAGIC_EN | WOL_MAGIC_PME_EN); |
| 1574 | |
| 1575 | /* ignore Link Chg event when Link is up */ |
| 1576 | ATL2_WRITE_REG(hw, REG_WOL_CTRL, ctrl); |
| 1577 | |
| 1578 | /* Config MAC CTRL Register */ |
| 1579 | ctrl = MAC_CTRL_RX_EN | MAC_CTRL_MACLP_CLK_PHY; |
| 1580 | if (FULL_DUPLEX == adapter->link_duplex) |
| 1581 | ctrl |= MAC_CTRL_DUPLX; |
| 1582 | ctrl |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD); |
| 1583 | ctrl |= (((u32)adapter->hw.preamble_len & |
| 1584 | MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT); |
| 1585 | ctrl |= (((u32)(adapter->hw.retry_buf & |
| 1586 | MAC_CTRL_HALF_LEFT_BUF_MASK)) << |
| 1587 | MAC_CTRL_HALF_LEFT_BUF_SHIFT); |
| 1588 | if (wufc & ATLX_WUFC_MAG) { |
| 1589 | /* magic packet maybe Broadcast&multicast&Unicast */ |
| 1590 | ctrl |= MAC_CTRL_BC_EN; |
| 1591 | } |
| 1592 | |
| 1593 | ATL2_WRITE_REG(hw, REG_MAC_CTRL, ctrl); |
| 1594 | |
| 1595 | /* pcie patch */ |
| 1596 | ctrl = ATL2_READ_REG(hw, REG_PCIE_PHYMISC); |
| 1597 | ctrl |= PCIE_PHYMISC_FORCE_RCV_DET; |
| 1598 | ATL2_WRITE_REG(hw, REG_PCIE_PHYMISC, ctrl); |
| 1599 | ctrl = ATL2_READ_REG(hw, REG_PCIE_DLL_TX_CTRL1); |
| 1600 | ctrl |= PCIE_DLL_TX_CTRL1_SEL_NOR_CLK; |
| 1601 | ATL2_WRITE_REG(hw, REG_PCIE_DLL_TX_CTRL1, ctrl); |
| 1602 | |
| 1603 | pci_enable_wake(pdev, pci_choose_state(pdev, state), 1); |
| 1604 | goto suspend_exit; |
| 1605 | } |
| 1606 | |
| 1607 | if (0 == (ctrl&BMSR_LSTATUS) && 0 != (wufc&ATLX_WUFC_LNKC)) { |
| 1608 | /* link is down, so only LINK CHG WOL event enable */ |
| 1609 | ctrl |= (WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN); |
| 1610 | ATL2_WRITE_REG(hw, REG_WOL_CTRL, ctrl); |
| 1611 | ATL2_WRITE_REG(hw, REG_MAC_CTRL, 0); |
| 1612 | |
| 1613 | /* pcie patch */ |
| 1614 | ctrl = ATL2_READ_REG(hw, REG_PCIE_PHYMISC); |
| 1615 | ctrl |= PCIE_PHYMISC_FORCE_RCV_DET; |
| 1616 | ATL2_WRITE_REG(hw, REG_PCIE_PHYMISC, ctrl); |
| 1617 | ctrl = ATL2_READ_REG(hw, REG_PCIE_DLL_TX_CTRL1); |
| 1618 | ctrl |= PCIE_DLL_TX_CTRL1_SEL_NOR_CLK; |
| 1619 | ATL2_WRITE_REG(hw, REG_PCIE_DLL_TX_CTRL1, ctrl); |
| 1620 | |
| 1621 | hw->phy_configured = false; /* re-init PHY when resume */ |
| 1622 | |
| 1623 | pci_enable_wake(pdev, pci_choose_state(pdev, state), 1); |
| 1624 | |
| 1625 | goto suspend_exit; |
| 1626 | } |
| 1627 | |
| 1628 | wol_dis: |
| 1629 | /* WOL disabled */ |
| 1630 | ATL2_WRITE_REG(hw, REG_WOL_CTRL, 0); |
| 1631 | |
| 1632 | /* pcie patch */ |
| 1633 | ctrl = ATL2_READ_REG(hw, REG_PCIE_PHYMISC); |
| 1634 | ctrl |= PCIE_PHYMISC_FORCE_RCV_DET; |
| 1635 | ATL2_WRITE_REG(hw, REG_PCIE_PHYMISC, ctrl); |
| 1636 | ctrl = ATL2_READ_REG(hw, REG_PCIE_DLL_TX_CTRL1); |
| 1637 | ctrl |= PCIE_DLL_TX_CTRL1_SEL_NOR_CLK; |
| 1638 | ATL2_WRITE_REG(hw, REG_PCIE_DLL_TX_CTRL1, ctrl); |
| 1639 | |
| 1640 | atl2_force_ps(hw); |
| 1641 | hw->phy_configured = false; /* re-init PHY when resume */ |
| 1642 | |
| 1643 | pci_enable_wake(pdev, pci_choose_state(pdev, state), 0); |
| 1644 | |
| 1645 | suspend_exit: |
| 1646 | if (netif_running(netdev)) |
| 1647 | atl2_free_irq(adapter); |
| 1648 | |
| 1649 | pci_disable_device(pdev); |
| 1650 | |
| 1651 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| 1652 | |
| 1653 | return 0; |
| 1654 | } |
| 1655 | |
| 1656 | #ifdef CONFIG_PM |
| 1657 | static int atl2_resume(struct pci_dev *pdev) |
| 1658 | { |
| 1659 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 1660 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 1661 | u32 err; |
| 1662 | |
| 1663 | pci_set_power_state(pdev, PCI_D0); |
| 1664 | pci_restore_state(pdev); |
| 1665 | |
| 1666 | err = pci_enable_device(pdev); |
| 1667 | if (err) { |
| 1668 | printk(KERN_ERR |
| 1669 | "atl2: Cannot enable PCI device from suspend\n"); |
| 1670 | return err; |
| 1671 | } |
| 1672 | |
| 1673 | pci_set_master(pdev); |
| 1674 | |
| 1675 | ATL2_READ_REG(&adapter->hw, REG_WOL_CTRL); /* clear WOL status */ |
| 1676 | |
| 1677 | pci_enable_wake(pdev, PCI_D3hot, 0); |
| 1678 | pci_enable_wake(pdev, PCI_D3cold, 0); |
| 1679 | |
| 1680 | ATL2_WRITE_REG(&adapter->hw, REG_WOL_CTRL, 0); |
| 1681 | |
Alan Jenkins | a849854 | 2008-11-20 04:18:25 -0800 | [diff] [blame] | 1682 | if (netif_running(netdev)) { |
| 1683 | err = atl2_request_irq(adapter); |
| 1684 | if (err) |
| 1685 | return err; |
| 1686 | } |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 1687 | |
| 1688 | atl2_reset_hw(&adapter->hw); |
| 1689 | |
| 1690 | if (netif_running(netdev)) |
| 1691 | atl2_up(adapter); |
| 1692 | |
| 1693 | netif_device_attach(netdev); |
| 1694 | |
| 1695 | return 0; |
| 1696 | } |
| 1697 | #endif |
| 1698 | |
| 1699 | static void atl2_shutdown(struct pci_dev *pdev) |
| 1700 | { |
| 1701 | atl2_suspend(pdev, PMSG_SUSPEND); |
| 1702 | } |
| 1703 | |
| 1704 | static struct pci_driver atl2_driver = { |
| 1705 | .name = atl2_driver_name, |
| 1706 | .id_table = atl2_pci_tbl, |
| 1707 | .probe = atl2_probe, |
| 1708 | .remove = __devexit_p(atl2_remove), |
| 1709 | /* Power Managment Hooks */ |
| 1710 | .suspend = atl2_suspend, |
| 1711 | #ifdef CONFIG_PM |
| 1712 | .resume = atl2_resume, |
| 1713 | #endif |
| 1714 | .shutdown = atl2_shutdown, |
| 1715 | }; |
| 1716 | |
| 1717 | /* |
| 1718 | * atl2_init_module - Driver Registration Routine |
| 1719 | * |
| 1720 | * atl2_init_module is the first routine called when the driver is |
| 1721 | * loaded. All it does is register with the PCI subsystem. |
| 1722 | */ |
| 1723 | static int __init atl2_init_module(void) |
| 1724 | { |
| 1725 | printk(KERN_INFO "%s - version %s\n", atl2_driver_string, |
| 1726 | atl2_driver_version); |
| 1727 | printk(KERN_INFO "%s\n", atl2_copyright); |
| 1728 | return pci_register_driver(&atl2_driver); |
| 1729 | } |
| 1730 | module_init(atl2_init_module); |
| 1731 | |
| 1732 | /* |
| 1733 | * atl2_exit_module - Driver Exit Cleanup Routine |
| 1734 | * |
| 1735 | * atl2_exit_module is called just before the driver is removed |
| 1736 | * from memory. |
| 1737 | */ |
| 1738 | static void __exit atl2_exit_module(void) |
| 1739 | { |
| 1740 | pci_unregister_driver(&atl2_driver); |
| 1741 | } |
| 1742 | module_exit(atl2_exit_module); |
| 1743 | |
| 1744 | static void atl2_read_pci_cfg(struct atl2_hw *hw, u32 reg, u16 *value) |
| 1745 | { |
| 1746 | struct atl2_adapter *adapter = hw->back; |
| 1747 | pci_read_config_word(adapter->pdev, reg, value); |
| 1748 | } |
| 1749 | |
| 1750 | static void atl2_write_pci_cfg(struct atl2_hw *hw, u32 reg, u16 *value) |
| 1751 | { |
| 1752 | struct atl2_adapter *adapter = hw->back; |
| 1753 | pci_write_config_word(adapter->pdev, reg, *value); |
| 1754 | } |
| 1755 | |
| 1756 | static int atl2_get_settings(struct net_device *netdev, |
| 1757 | struct ethtool_cmd *ecmd) |
| 1758 | { |
| 1759 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 1760 | struct atl2_hw *hw = &adapter->hw; |
| 1761 | |
| 1762 | ecmd->supported = (SUPPORTED_10baseT_Half | |
| 1763 | SUPPORTED_10baseT_Full | |
| 1764 | SUPPORTED_100baseT_Half | |
| 1765 | SUPPORTED_100baseT_Full | |
| 1766 | SUPPORTED_Autoneg | |
| 1767 | SUPPORTED_TP); |
| 1768 | ecmd->advertising = ADVERTISED_TP; |
| 1769 | |
| 1770 | ecmd->advertising |= ADVERTISED_Autoneg; |
| 1771 | ecmd->advertising |= hw->autoneg_advertised; |
| 1772 | |
| 1773 | ecmd->port = PORT_TP; |
| 1774 | ecmd->phy_address = 0; |
| 1775 | ecmd->transceiver = XCVR_INTERNAL; |
| 1776 | |
| 1777 | if (adapter->link_speed != SPEED_0) { |
| 1778 | ecmd->speed = adapter->link_speed; |
| 1779 | if (adapter->link_duplex == FULL_DUPLEX) |
| 1780 | ecmd->duplex = DUPLEX_FULL; |
| 1781 | else |
| 1782 | ecmd->duplex = DUPLEX_HALF; |
| 1783 | } else { |
| 1784 | ecmd->speed = -1; |
| 1785 | ecmd->duplex = -1; |
| 1786 | } |
| 1787 | |
| 1788 | ecmd->autoneg = AUTONEG_ENABLE; |
| 1789 | return 0; |
| 1790 | } |
| 1791 | |
| 1792 | static int atl2_set_settings(struct net_device *netdev, |
| 1793 | struct ethtool_cmd *ecmd) |
| 1794 | { |
| 1795 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 1796 | struct atl2_hw *hw = &adapter->hw; |
| 1797 | |
| 1798 | while (test_and_set_bit(__ATL2_RESETTING, &adapter->flags)) |
| 1799 | msleep(1); |
| 1800 | |
| 1801 | if (ecmd->autoneg == AUTONEG_ENABLE) { |
| 1802 | #define MY_ADV_MASK (ADVERTISE_10_HALF | \ |
| 1803 | ADVERTISE_10_FULL | \ |
| 1804 | ADVERTISE_100_HALF| \ |
| 1805 | ADVERTISE_100_FULL) |
| 1806 | |
| 1807 | if ((ecmd->advertising & MY_ADV_MASK) == MY_ADV_MASK) { |
| 1808 | hw->MediaType = MEDIA_TYPE_AUTO_SENSOR; |
| 1809 | hw->autoneg_advertised = MY_ADV_MASK; |
| 1810 | } else if ((ecmd->advertising & MY_ADV_MASK) == |
| 1811 | ADVERTISE_100_FULL) { |
| 1812 | hw->MediaType = MEDIA_TYPE_100M_FULL; |
| 1813 | hw->autoneg_advertised = ADVERTISE_100_FULL; |
| 1814 | } else if ((ecmd->advertising & MY_ADV_MASK) == |
| 1815 | ADVERTISE_100_HALF) { |
| 1816 | hw->MediaType = MEDIA_TYPE_100M_HALF; |
| 1817 | hw->autoneg_advertised = ADVERTISE_100_HALF; |
| 1818 | } else if ((ecmd->advertising & MY_ADV_MASK) == |
| 1819 | ADVERTISE_10_FULL) { |
| 1820 | hw->MediaType = MEDIA_TYPE_10M_FULL; |
| 1821 | hw->autoneg_advertised = ADVERTISE_10_FULL; |
| 1822 | } else if ((ecmd->advertising & MY_ADV_MASK) == |
| 1823 | ADVERTISE_10_HALF) { |
| 1824 | hw->MediaType = MEDIA_TYPE_10M_HALF; |
| 1825 | hw->autoneg_advertised = ADVERTISE_10_HALF; |
| 1826 | } else { |
| 1827 | clear_bit(__ATL2_RESETTING, &adapter->flags); |
| 1828 | return -EINVAL; |
| 1829 | } |
| 1830 | ecmd->advertising = hw->autoneg_advertised | |
| 1831 | ADVERTISED_TP | ADVERTISED_Autoneg; |
| 1832 | } else { |
| 1833 | clear_bit(__ATL2_RESETTING, &adapter->flags); |
| 1834 | return -EINVAL; |
| 1835 | } |
| 1836 | |
| 1837 | /* reset the link */ |
| 1838 | if (netif_running(adapter->netdev)) { |
| 1839 | atl2_down(adapter); |
| 1840 | atl2_up(adapter); |
| 1841 | } else |
| 1842 | atl2_reset_hw(&adapter->hw); |
| 1843 | |
| 1844 | clear_bit(__ATL2_RESETTING, &adapter->flags); |
| 1845 | return 0; |
| 1846 | } |
| 1847 | |
| 1848 | static u32 atl2_get_tx_csum(struct net_device *netdev) |
| 1849 | { |
| 1850 | return (netdev->features & NETIF_F_HW_CSUM) != 0; |
| 1851 | } |
| 1852 | |
| 1853 | static u32 atl2_get_msglevel(struct net_device *netdev) |
| 1854 | { |
| 1855 | return 0; |
| 1856 | } |
| 1857 | |
| 1858 | /* |
| 1859 | * It's sane for this to be empty, but we might want to take advantage of this. |
| 1860 | */ |
| 1861 | static void atl2_set_msglevel(struct net_device *netdev, u32 data) |
| 1862 | { |
| 1863 | } |
| 1864 | |
| 1865 | static int atl2_get_regs_len(struct net_device *netdev) |
| 1866 | { |
| 1867 | #define ATL2_REGS_LEN 42 |
| 1868 | return sizeof(u32) * ATL2_REGS_LEN; |
| 1869 | } |
| 1870 | |
| 1871 | static void atl2_get_regs(struct net_device *netdev, |
| 1872 | struct ethtool_regs *regs, void *p) |
| 1873 | { |
| 1874 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 1875 | struct atl2_hw *hw = &adapter->hw; |
| 1876 | u32 *regs_buff = p; |
| 1877 | u16 phy_data; |
| 1878 | |
| 1879 | memset(p, 0, sizeof(u32) * ATL2_REGS_LEN); |
| 1880 | |
| 1881 | regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id; |
| 1882 | |
| 1883 | regs_buff[0] = ATL2_READ_REG(hw, REG_VPD_CAP); |
| 1884 | regs_buff[1] = ATL2_READ_REG(hw, REG_SPI_FLASH_CTRL); |
| 1885 | regs_buff[2] = ATL2_READ_REG(hw, REG_SPI_FLASH_CONFIG); |
| 1886 | regs_buff[3] = ATL2_READ_REG(hw, REG_TWSI_CTRL); |
| 1887 | regs_buff[4] = ATL2_READ_REG(hw, REG_PCIE_DEV_MISC_CTRL); |
| 1888 | regs_buff[5] = ATL2_READ_REG(hw, REG_MASTER_CTRL); |
| 1889 | regs_buff[6] = ATL2_READ_REG(hw, REG_MANUAL_TIMER_INIT); |
| 1890 | regs_buff[7] = ATL2_READ_REG(hw, REG_IRQ_MODU_TIMER_INIT); |
| 1891 | regs_buff[8] = ATL2_READ_REG(hw, REG_PHY_ENABLE); |
| 1892 | regs_buff[9] = ATL2_READ_REG(hw, REG_CMBDISDMA_TIMER); |
| 1893 | regs_buff[10] = ATL2_READ_REG(hw, REG_IDLE_STATUS); |
| 1894 | regs_buff[11] = ATL2_READ_REG(hw, REG_MDIO_CTRL); |
| 1895 | regs_buff[12] = ATL2_READ_REG(hw, REG_SERDES_LOCK); |
| 1896 | regs_buff[13] = ATL2_READ_REG(hw, REG_MAC_CTRL); |
| 1897 | regs_buff[14] = ATL2_READ_REG(hw, REG_MAC_IPG_IFG); |
| 1898 | regs_buff[15] = ATL2_READ_REG(hw, REG_MAC_STA_ADDR); |
| 1899 | regs_buff[16] = ATL2_READ_REG(hw, REG_MAC_STA_ADDR+4); |
| 1900 | regs_buff[17] = ATL2_READ_REG(hw, REG_RX_HASH_TABLE); |
| 1901 | regs_buff[18] = ATL2_READ_REG(hw, REG_RX_HASH_TABLE+4); |
| 1902 | regs_buff[19] = ATL2_READ_REG(hw, REG_MAC_HALF_DUPLX_CTRL); |
| 1903 | regs_buff[20] = ATL2_READ_REG(hw, REG_MTU); |
| 1904 | regs_buff[21] = ATL2_READ_REG(hw, REG_WOL_CTRL); |
| 1905 | regs_buff[22] = ATL2_READ_REG(hw, REG_SRAM_TXRAM_END); |
| 1906 | regs_buff[23] = ATL2_READ_REG(hw, REG_DESC_BASE_ADDR_HI); |
| 1907 | regs_buff[24] = ATL2_READ_REG(hw, REG_TXD_BASE_ADDR_LO); |
| 1908 | regs_buff[25] = ATL2_READ_REG(hw, REG_TXD_MEM_SIZE); |
| 1909 | regs_buff[26] = ATL2_READ_REG(hw, REG_TXS_BASE_ADDR_LO); |
| 1910 | regs_buff[27] = ATL2_READ_REG(hw, REG_TXS_MEM_SIZE); |
| 1911 | regs_buff[28] = ATL2_READ_REG(hw, REG_RXD_BASE_ADDR_LO); |
| 1912 | regs_buff[29] = ATL2_READ_REG(hw, REG_RXD_BUF_NUM); |
| 1913 | regs_buff[30] = ATL2_READ_REG(hw, REG_DMAR); |
| 1914 | regs_buff[31] = ATL2_READ_REG(hw, REG_TX_CUT_THRESH); |
| 1915 | regs_buff[32] = ATL2_READ_REG(hw, REG_DMAW); |
| 1916 | regs_buff[33] = ATL2_READ_REG(hw, REG_PAUSE_ON_TH); |
| 1917 | regs_buff[34] = ATL2_READ_REG(hw, REG_PAUSE_OFF_TH); |
| 1918 | regs_buff[35] = ATL2_READ_REG(hw, REG_MB_TXD_WR_IDX); |
| 1919 | regs_buff[36] = ATL2_READ_REG(hw, REG_MB_RXD_RD_IDX); |
| 1920 | regs_buff[38] = ATL2_READ_REG(hw, REG_ISR); |
| 1921 | regs_buff[39] = ATL2_READ_REG(hw, REG_IMR); |
| 1922 | |
| 1923 | atl2_read_phy_reg(hw, MII_BMCR, &phy_data); |
| 1924 | regs_buff[40] = (u32)phy_data; |
| 1925 | atl2_read_phy_reg(hw, MII_BMSR, &phy_data); |
| 1926 | regs_buff[41] = (u32)phy_data; |
| 1927 | } |
| 1928 | |
| 1929 | static int atl2_get_eeprom_len(struct net_device *netdev) |
| 1930 | { |
| 1931 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 1932 | |
| 1933 | if (!atl2_check_eeprom_exist(&adapter->hw)) |
| 1934 | return 512; |
| 1935 | else |
| 1936 | return 0; |
| 1937 | } |
| 1938 | |
| 1939 | static int atl2_get_eeprom(struct net_device *netdev, |
| 1940 | struct ethtool_eeprom *eeprom, u8 *bytes) |
| 1941 | { |
| 1942 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 1943 | struct atl2_hw *hw = &adapter->hw; |
| 1944 | u32 *eeprom_buff; |
| 1945 | int first_dword, last_dword; |
| 1946 | int ret_val = 0; |
| 1947 | int i; |
| 1948 | |
| 1949 | if (eeprom->len == 0) |
| 1950 | return -EINVAL; |
| 1951 | |
| 1952 | if (atl2_check_eeprom_exist(hw)) |
| 1953 | return -EINVAL; |
| 1954 | |
| 1955 | eeprom->magic = hw->vendor_id | (hw->device_id << 16); |
| 1956 | |
| 1957 | first_dword = eeprom->offset >> 2; |
| 1958 | last_dword = (eeprom->offset + eeprom->len - 1) >> 2; |
| 1959 | |
| 1960 | eeprom_buff = kmalloc(sizeof(u32) * (last_dword - first_dword + 1), |
| 1961 | GFP_KERNEL); |
| 1962 | if (!eeprom_buff) |
| 1963 | return -ENOMEM; |
| 1964 | |
| 1965 | for (i = first_dword; i < last_dword; i++) { |
| 1966 | if (!atl2_read_eeprom(hw, i*4, &(eeprom_buff[i-first_dword]))) |
| 1967 | return -EIO; |
| 1968 | } |
| 1969 | |
| 1970 | memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3), |
| 1971 | eeprom->len); |
| 1972 | kfree(eeprom_buff); |
| 1973 | |
| 1974 | return ret_val; |
| 1975 | } |
| 1976 | |
| 1977 | static int atl2_set_eeprom(struct net_device *netdev, |
| 1978 | struct ethtool_eeprom *eeprom, u8 *bytes) |
| 1979 | { |
| 1980 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 1981 | struct atl2_hw *hw = &adapter->hw; |
| 1982 | u32 *eeprom_buff; |
| 1983 | u32 *ptr; |
| 1984 | int max_len, first_dword, last_dword, ret_val = 0; |
| 1985 | int i; |
| 1986 | |
| 1987 | if (eeprom->len == 0) |
| 1988 | return -EOPNOTSUPP; |
| 1989 | |
| 1990 | if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) |
| 1991 | return -EFAULT; |
| 1992 | |
| 1993 | max_len = 512; |
| 1994 | |
| 1995 | first_dword = eeprom->offset >> 2; |
| 1996 | last_dword = (eeprom->offset + eeprom->len - 1) >> 2; |
| 1997 | eeprom_buff = kmalloc(max_len, GFP_KERNEL); |
| 1998 | if (!eeprom_buff) |
| 1999 | return -ENOMEM; |
| 2000 | |
| 2001 | ptr = (u32 *)eeprom_buff; |
| 2002 | |
| 2003 | if (eeprom->offset & 3) { |
| 2004 | /* need read/modify/write of first changed EEPROM word */ |
| 2005 | /* only the second byte of the word is being modified */ |
| 2006 | if (!atl2_read_eeprom(hw, first_dword*4, &(eeprom_buff[0]))) |
| 2007 | return -EIO; |
| 2008 | ptr++; |
| 2009 | } |
| 2010 | if (((eeprom->offset + eeprom->len) & 3)) { |
| 2011 | /* |
| 2012 | * need read/modify/write of last changed EEPROM word |
| 2013 | * only the first byte of the word is being modified |
| 2014 | */ |
| 2015 | if (!atl2_read_eeprom(hw, last_dword * 4, |
| 2016 | &(eeprom_buff[last_dword - first_dword]))) |
| 2017 | return -EIO; |
| 2018 | } |
| 2019 | |
| 2020 | /* Device's eeprom is always little-endian, word addressable */ |
| 2021 | memcpy(ptr, bytes, eeprom->len); |
| 2022 | |
| 2023 | for (i = 0; i < last_dword - first_dword + 1; i++) { |
| 2024 | if (!atl2_write_eeprom(hw, ((first_dword+i)*4), eeprom_buff[i])) |
| 2025 | return -EIO; |
| 2026 | } |
| 2027 | |
| 2028 | kfree(eeprom_buff); |
| 2029 | return ret_val; |
| 2030 | } |
| 2031 | |
| 2032 | static void atl2_get_drvinfo(struct net_device *netdev, |
| 2033 | struct ethtool_drvinfo *drvinfo) |
| 2034 | { |
| 2035 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 2036 | |
| 2037 | strncpy(drvinfo->driver, atl2_driver_name, 32); |
| 2038 | strncpy(drvinfo->version, atl2_driver_version, 32); |
| 2039 | strncpy(drvinfo->fw_version, "L2", 32); |
| 2040 | strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32); |
| 2041 | drvinfo->n_stats = 0; |
| 2042 | drvinfo->testinfo_len = 0; |
| 2043 | drvinfo->regdump_len = atl2_get_regs_len(netdev); |
| 2044 | drvinfo->eedump_len = atl2_get_eeprom_len(netdev); |
| 2045 | } |
| 2046 | |
| 2047 | static void atl2_get_wol(struct net_device *netdev, |
| 2048 | struct ethtool_wolinfo *wol) |
| 2049 | { |
| 2050 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 2051 | |
| 2052 | wol->supported = WAKE_MAGIC; |
| 2053 | wol->wolopts = 0; |
| 2054 | |
| 2055 | if (adapter->wol & ATLX_WUFC_EX) |
| 2056 | wol->wolopts |= WAKE_UCAST; |
| 2057 | if (adapter->wol & ATLX_WUFC_MC) |
| 2058 | wol->wolopts |= WAKE_MCAST; |
| 2059 | if (adapter->wol & ATLX_WUFC_BC) |
| 2060 | wol->wolopts |= WAKE_BCAST; |
| 2061 | if (adapter->wol & ATLX_WUFC_MAG) |
| 2062 | wol->wolopts |= WAKE_MAGIC; |
| 2063 | if (adapter->wol & ATLX_WUFC_LNKC) |
| 2064 | wol->wolopts |= WAKE_PHY; |
| 2065 | } |
| 2066 | |
| 2067 | static int atl2_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) |
| 2068 | { |
| 2069 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 2070 | |
| 2071 | if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE)) |
| 2072 | return -EOPNOTSUPP; |
| 2073 | |
roel kluin | 41796e9 | 2009-07-12 13:12:37 +0000 | [diff] [blame] | 2074 | if (wol->wolopts & (WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)) |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 2075 | return -EOPNOTSUPP; |
| 2076 | |
| 2077 | /* these settings will always override what we currently have */ |
| 2078 | adapter->wol = 0; |
| 2079 | |
| 2080 | if (wol->wolopts & WAKE_MAGIC) |
| 2081 | adapter->wol |= ATLX_WUFC_MAG; |
| 2082 | if (wol->wolopts & WAKE_PHY) |
| 2083 | adapter->wol |= ATLX_WUFC_LNKC; |
| 2084 | |
| 2085 | return 0; |
| 2086 | } |
| 2087 | |
| 2088 | static int atl2_nway_reset(struct net_device *netdev) |
| 2089 | { |
| 2090 | struct atl2_adapter *adapter = netdev_priv(netdev); |
| 2091 | if (netif_running(netdev)) |
| 2092 | atl2_reinit_locked(adapter); |
| 2093 | return 0; |
| 2094 | } |
| 2095 | |
| 2096 | static struct ethtool_ops atl2_ethtool_ops = { |
| 2097 | .get_settings = atl2_get_settings, |
| 2098 | .set_settings = atl2_set_settings, |
| 2099 | .get_drvinfo = atl2_get_drvinfo, |
| 2100 | .get_regs_len = atl2_get_regs_len, |
| 2101 | .get_regs = atl2_get_regs, |
| 2102 | .get_wol = atl2_get_wol, |
| 2103 | .set_wol = atl2_set_wol, |
| 2104 | .get_msglevel = atl2_get_msglevel, |
| 2105 | .set_msglevel = atl2_set_msglevel, |
| 2106 | .nway_reset = atl2_nway_reset, |
| 2107 | .get_link = ethtool_op_get_link, |
| 2108 | .get_eeprom_len = atl2_get_eeprom_len, |
| 2109 | .get_eeprom = atl2_get_eeprom, |
| 2110 | .set_eeprom = atl2_set_eeprom, |
| 2111 | .get_tx_csum = atl2_get_tx_csum, |
| 2112 | .get_sg = ethtool_op_get_sg, |
| 2113 | .set_sg = ethtool_op_set_sg, |
| 2114 | #ifdef NETIF_F_TSO |
| 2115 | .get_tso = ethtool_op_get_tso, |
| 2116 | #endif |
| 2117 | }; |
| 2118 | |
| 2119 | static void atl2_set_ethtool_ops(struct net_device *netdev) |
| 2120 | { |
| 2121 | SET_ETHTOOL_OPS(netdev, &atl2_ethtool_ops); |
| 2122 | } |
| 2123 | |
| 2124 | #define LBYTESWAP(a) ((((a) & 0x00ff00ff) << 8) | \ |
| 2125 | (((a) & 0xff00ff00) >> 8)) |
| 2126 | #define LONGSWAP(a) ((LBYTESWAP(a) << 16) | (LBYTESWAP(a) >> 16)) |
| 2127 | #define SHORTSWAP(a) (((a) << 8) | ((a) >> 8)) |
| 2128 | |
| 2129 | /* |
| 2130 | * Reset the transmit and receive units; mask and clear all interrupts. |
| 2131 | * |
| 2132 | * hw - Struct containing variables accessed by shared code |
| 2133 | * return : 0 or idle status (if error) |
| 2134 | */ |
| 2135 | static s32 atl2_reset_hw(struct atl2_hw *hw) |
| 2136 | { |
| 2137 | u32 icr; |
| 2138 | u16 pci_cfg_cmd_word; |
| 2139 | int i; |
| 2140 | |
| 2141 | /* Workaround for PCI problem when BIOS sets MMRBC incorrectly. */ |
| 2142 | atl2_read_pci_cfg(hw, PCI_REG_COMMAND, &pci_cfg_cmd_word); |
| 2143 | if ((pci_cfg_cmd_word & |
| 2144 | (CMD_IO_SPACE|CMD_MEMORY_SPACE|CMD_BUS_MASTER)) != |
| 2145 | (CMD_IO_SPACE|CMD_MEMORY_SPACE|CMD_BUS_MASTER)) { |
| 2146 | pci_cfg_cmd_word |= |
| 2147 | (CMD_IO_SPACE|CMD_MEMORY_SPACE|CMD_BUS_MASTER); |
| 2148 | atl2_write_pci_cfg(hw, PCI_REG_COMMAND, &pci_cfg_cmd_word); |
| 2149 | } |
| 2150 | |
| 2151 | /* Clear Interrupt mask to stop board from generating |
| 2152 | * interrupts & Clear any pending interrupt events |
| 2153 | */ |
| 2154 | /* FIXME */ |
| 2155 | /* ATL2_WRITE_REG(hw, REG_IMR, 0); */ |
| 2156 | /* ATL2_WRITE_REG(hw, REG_ISR, 0xffffffff); */ |
| 2157 | |
| 2158 | /* Issue Soft Reset to the MAC. This will reset the chip's |
| 2159 | * transmit, receive, DMA. It will not effect |
| 2160 | * the current PCI configuration. The global reset bit is self- |
| 2161 | * clearing, and should clear within a microsecond. |
| 2162 | */ |
| 2163 | ATL2_WRITE_REG(hw, REG_MASTER_CTRL, MASTER_CTRL_SOFT_RST); |
| 2164 | wmb(); |
| 2165 | msleep(1); /* delay about 1ms */ |
| 2166 | |
| 2167 | /* Wait at least 10ms for All module to be Idle */ |
| 2168 | for (i = 0; i < 10; i++) { |
| 2169 | icr = ATL2_READ_REG(hw, REG_IDLE_STATUS); |
| 2170 | if (!icr) |
| 2171 | break; |
| 2172 | msleep(1); /* delay 1 ms */ |
| 2173 | cpu_relax(); |
| 2174 | } |
| 2175 | |
| 2176 | if (icr) |
| 2177 | return icr; |
| 2178 | |
| 2179 | return 0; |
| 2180 | } |
| 2181 | |
| 2182 | #define CUSTOM_SPI_CS_SETUP 2 |
| 2183 | #define CUSTOM_SPI_CLK_HI 2 |
| 2184 | #define CUSTOM_SPI_CLK_LO 2 |
| 2185 | #define CUSTOM_SPI_CS_HOLD 2 |
| 2186 | #define CUSTOM_SPI_CS_HI 3 |
| 2187 | |
| 2188 | static struct atl2_spi_flash_dev flash_table[] = |
| 2189 | { |
| 2190 | /* MFR WRSR READ PROGRAM WREN WRDI RDSR RDID SECTOR_ERASE CHIP_ERASE */ |
| 2191 | {"Atmel", 0x0, 0x03, 0x02, 0x06, 0x04, 0x05, 0x15, 0x52, 0x62 }, |
| 2192 | {"SST", 0x01, 0x03, 0x02, 0x06, 0x04, 0x05, 0x90, 0x20, 0x60 }, |
| 2193 | {"ST", 0x01, 0x03, 0x02, 0x06, 0x04, 0x05, 0xAB, 0xD8, 0xC7 }, |
| 2194 | }; |
| 2195 | |
| 2196 | static bool atl2_spi_read(struct atl2_hw *hw, u32 addr, u32 *buf) |
| 2197 | { |
| 2198 | int i; |
| 2199 | u32 value; |
| 2200 | |
| 2201 | ATL2_WRITE_REG(hw, REG_SPI_DATA, 0); |
| 2202 | ATL2_WRITE_REG(hw, REG_SPI_ADDR, addr); |
| 2203 | |
| 2204 | value = SPI_FLASH_CTRL_WAIT_READY | |
| 2205 | (CUSTOM_SPI_CS_SETUP & SPI_FLASH_CTRL_CS_SETUP_MASK) << |
| 2206 | SPI_FLASH_CTRL_CS_SETUP_SHIFT | |
| 2207 | (CUSTOM_SPI_CLK_HI & SPI_FLASH_CTRL_CLK_HI_MASK) << |
| 2208 | SPI_FLASH_CTRL_CLK_HI_SHIFT | |
| 2209 | (CUSTOM_SPI_CLK_LO & SPI_FLASH_CTRL_CLK_LO_MASK) << |
| 2210 | SPI_FLASH_CTRL_CLK_LO_SHIFT | |
| 2211 | (CUSTOM_SPI_CS_HOLD & SPI_FLASH_CTRL_CS_HOLD_MASK) << |
| 2212 | SPI_FLASH_CTRL_CS_HOLD_SHIFT | |
| 2213 | (CUSTOM_SPI_CS_HI & SPI_FLASH_CTRL_CS_HI_MASK) << |
| 2214 | SPI_FLASH_CTRL_CS_HI_SHIFT | |
| 2215 | (0x1 & SPI_FLASH_CTRL_INS_MASK) << SPI_FLASH_CTRL_INS_SHIFT; |
| 2216 | |
| 2217 | ATL2_WRITE_REG(hw, REG_SPI_FLASH_CTRL, value); |
| 2218 | |
| 2219 | value |= SPI_FLASH_CTRL_START; |
| 2220 | |
| 2221 | ATL2_WRITE_REG(hw, REG_SPI_FLASH_CTRL, value); |
| 2222 | |
| 2223 | for (i = 0; i < 10; i++) { |
| 2224 | msleep(1); |
| 2225 | value = ATL2_READ_REG(hw, REG_SPI_FLASH_CTRL); |
| 2226 | if (!(value & SPI_FLASH_CTRL_START)) |
| 2227 | break; |
| 2228 | } |
| 2229 | |
| 2230 | if (value & SPI_FLASH_CTRL_START) |
| 2231 | return false; |
| 2232 | |
| 2233 | *buf = ATL2_READ_REG(hw, REG_SPI_DATA); |
| 2234 | |
| 2235 | return true; |
| 2236 | } |
| 2237 | |
| 2238 | /* |
| 2239 | * get_permanent_address |
| 2240 | * return 0 if get valid mac address, |
| 2241 | */ |
| 2242 | static int get_permanent_address(struct atl2_hw *hw) |
| 2243 | { |
| 2244 | u32 Addr[2]; |
| 2245 | u32 i, Control; |
| 2246 | u16 Register; |
| 2247 | u8 EthAddr[NODE_ADDRESS_SIZE]; |
| 2248 | bool KeyValid; |
| 2249 | |
| 2250 | if (is_valid_ether_addr(hw->perm_mac_addr)) |
| 2251 | return 0; |
| 2252 | |
| 2253 | Addr[0] = 0; |
| 2254 | Addr[1] = 0; |
| 2255 | |
| 2256 | if (!atl2_check_eeprom_exist(hw)) { /* eeprom exists */ |
| 2257 | Register = 0; |
| 2258 | KeyValid = false; |
| 2259 | |
| 2260 | /* Read out all EEPROM content */ |
| 2261 | i = 0; |
| 2262 | while (1) { |
| 2263 | if (atl2_read_eeprom(hw, i + 0x100, &Control)) { |
| 2264 | if (KeyValid) { |
| 2265 | if (Register == REG_MAC_STA_ADDR) |
| 2266 | Addr[0] = Control; |
| 2267 | else if (Register == |
| 2268 | (REG_MAC_STA_ADDR + 4)) |
| 2269 | Addr[1] = Control; |
| 2270 | KeyValid = false; |
| 2271 | } else if ((Control & 0xff) == 0x5A) { |
| 2272 | KeyValid = true; |
| 2273 | Register = (u16) (Control >> 16); |
| 2274 | } else { |
| 2275 | /* assume data end while encount an invalid KEYWORD */ |
| 2276 | break; |
| 2277 | } |
| 2278 | } else { |
| 2279 | break; /* read error */ |
| 2280 | } |
| 2281 | i += 4; |
| 2282 | } |
| 2283 | |
| 2284 | *(u32 *) &EthAddr[2] = LONGSWAP(Addr[0]); |
| 2285 | *(u16 *) &EthAddr[0] = SHORTSWAP(*(u16 *) &Addr[1]); |
| 2286 | |
| 2287 | if (is_valid_ether_addr(EthAddr)) { |
| 2288 | memcpy(hw->perm_mac_addr, EthAddr, NODE_ADDRESS_SIZE); |
| 2289 | return 0; |
| 2290 | } |
| 2291 | return 1; |
| 2292 | } |
| 2293 | |
| 2294 | /* see if SPI flash exists? */ |
| 2295 | Addr[0] = 0; |
| 2296 | Addr[1] = 0; |
| 2297 | Register = 0; |
| 2298 | KeyValid = false; |
| 2299 | i = 0; |
| 2300 | while (1) { |
| 2301 | if (atl2_spi_read(hw, i + 0x1f000, &Control)) { |
| 2302 | if (KeyValid) { |
| 2303 | if (Register == REG_MAC_STA_ADDR) |
| 2304 | Addr[0] = Control; |
| 2305 | else if (Register == (REG_MAC_STA_ADDR + 4)) |
| 2306 | Addr[1] = Control; |
| 2307 | KeyValid = false; |
| 2308 | } else if ((Control & 0xff) == 0x5A) { |
| 2309 | KeyValid = true; |
| 2310 | Register = (u16) (Control >> 16); |
| 2311 | } else { |
| 2312 | break; /* data end */ |
| 2313 | } |
| 2314 | } else { |
| 2315 | break; /* read error */ |
| 2316 | } |
| 2317 | i += 4; |
| 2318 | } |
| 2319 | |
| 2320 | *(u32 *) &EthAddr[2] = LONGSWAP(Addr[0]); |
| 2321 | *(u16 *) &EthAddr[0] = SHORTSWAP(*(u16 *)&Addr[1]); |
| 2322 | if (is_valid_ether_addr(EthAddr)) { |
| 2323 | memcpy(hw->perm_mac_addr, EthAddr, NODE_ADDRESS_SIZE); |
| 2324 | return 0; |
| 2325 | } |
| 2326 | /* maybe MAC-address is from BIOS */ |
| 2327 | Addr[0] = ATL2_READ_REG(hw, REG_MAC_STA_ADDR); |
| 2328 | Addr[1] = ATL2_READ_REG(hw, REG_MAC_STA_ADDR + 4); |
| 2329 | *(u32 *) &EthAddr[2] = LONGSWAP(Addr[0]); |
| 2330 | *(u16 *) &EthAddr[0] = SHORTSWAP(*(u16 *) &Addr[1]); |
| 2331 | |
| 2332 | if (is_valid_ether_addr(EthAddr)) { |
| 2333 | memcpy(hw->perm_mac_addr, EthAddr, NODE_ADDRESS_SIZE); |
| 2334 | return 0; |
| 2335 | } |
| 2336 | |
| 2337 | return 1; |
| 2338 | } |
| 2339 | |
| 2340 | /* |
| 2341 | * Reads the adapter's MAC address from the EEPROM |
| 2342 | * |
| 2343 | * hw - Struct containing variables accessed by shared code |
| 2344 | */ |
| 2345 | static s32 atl2_read_mac_addr(struct atl2_hw *hw) |
| 2346 | { |
| 2347 | u16 i; |
| 2348 | |
| 2349 | if (get_permanent_address(hw)) { |
| 2350 | /* for test */ |
| 2351 | /* FIXME: shouldn't we use random_ether_addr() here? */ |
| 2352 | hw->perm_mac_addr[0] = 0x00; |
| 2353 | hw->perm_mac_addr[1] = 0x13; |
| 2354 | hw->perm_mac_addr[2] = 0x74; |
| 2355 | hw->perm_mac_addr[3] = 0x00; |
| 2356 | hw->perm_mac_addr[4] = 0x5c; |
| 2357 | hw->perm_mac_addr[5] = 0x38; |
| 2358 | } |
| 2359 | |
| 2360 | for (i = 0; i < NODE_ADDRESS_SIZE; i++) |
| 2361 | hw->mac_addr[i] = hw->perm_mac_addr[i]; |
| 2362 | |
| 2363 | return 0; |
| 2364 | } |
| 2365 | |
| 2366 | /* |
| 2367 | * Hashes an address to determine its location in the multicast table |
| 2368 | * |
| 2369 | * hw - Struct containing variables accessed by shared code |
| 2370 | * mc_addr - the multicast address to hash |
| 2371 | * |
| 2372 | * atl2_hash_mc_addr |
| 2373 | * purpose |
| 2374 | * set hash value for a multicast address |
| 2375 | * hash calcu processing : |
| 2376 | * 1. calcu 32bit CRC for multicast address |
| 2377 | * 2. reverse crc with MSB to LSB |
| 2378 | */ |
| 2379 | static u32 atl2_hash_mc_addr(struct atl2_hw *hw, u8 *mc_addr) |
| 2380 | { |
| 2381 | u32 crc32, value; |
| 2382 | int i; |
| 2383 | |
| 2384 | value = 0; |
| 2385 | crc32 = ether_crc_le(6, mc_addr); |
| 2386 | |
| 2387 | for (i = 0; i < 32; i++) |
| 2388 | value |= (((crc32 >> i) & 1) << (31 - i)); |
| 2389 | |
| 2390 | return value; |
| 2391 | } |
| 2392 | |
| 2393 | /* |
| 2394 | * Sets the bit in the multicast table corresponding to the hash value. |
| 2395 | * |
| 2396 | * hw - Struct containing variables accessed by shared code |
| 2397 | * hash_value - Multicast address hash value |
| 2398 | */ |
| 2399 | static void atl2_hash_set(struct atl2_hw *hw, u32 hash_value) |
| 2400 | { |
| 2401 | u32 hash_bit, hash_reg; |
| 2402 | u32 mta; |
| 2403 | |
| 2404 | /* The HASH Table is a register array of 2 32-bit registers. |
| 2405 | * It is treated like an array of 64 bits. We want to set |
| 2406 | * bit BitArray[hash_value]. So we figure out what register |
| 2407 | * the bit is in, read it, OR in the new bit, then write |
| 2408 | * back the new value. The register is determined by the |
| 2409 | * upper 7 bits of the hash value and the bit within that |
| 2410 | * register are determined by the lower 5 bits of the value. |
| 2411 | */ |
| 2412 | hash_reg = (hash_value >> 31) & 0x1; |
| 2413 | hash_bit = (hash_value >> 26) & 0x1F; |
| 2414 | |
| 2415 | mta = ATL2_READ_REG_ARRAY(hw, REG_RX_HASH_TABLE, hash_reg); |
| 2416 | |
| 2417 | mta |= (1 << hash_bit); |
| 2418 | |
| 2419 | ATL2_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, hash_reg, mta); |
| 2420 | } |
| 2421 | |
| 2422 | /* |
| 2423 | * atl2_init_pcie - init PCIE module |
| 2424 | */ |
| 2425 | static void atl2_init_pcie(struct atl2_hw *hw) |
| 2426 | { |
| 2427 | u32 value; |
| 2428 | value = LTSSM_TEST_MODE_DEF; |
| 2429 | ATL2_WRITE_REG(hw, REG_LTSSM_TEST_MODE, value); |
| 2430 | |
| 2431 | value = PCIE_DLL_TX_CTRL1_DEF; |
| 2432 | ATL2_WRITE_REG(hw, REG_PCIE_DLL_TX_CTRL1, value); |
| 2433 | } |
| 2434 | |
| 2435 | static void atl2_init_flash_opcode(struct atl2_hw *hw) |
| 2436 | { |
| 2437 | if (hw->flash_vendor >= ARRAY_SIZE(flash_table)) |
| 2438 | hw->flash_vendor = 0; /* ATMEL */ |
| 2439 | |
| 2440 | /* Init OP table */ |
| 2441 | ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_PROGRAM, |
| 2442 | flash_table[hw->flash_vendor].cmdPROGRAM); |
| 2443 | ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_SC_ERASE, |
| 2444 | flash_table[hw->flash_vendor].cmdSECTOR_ERASE); |
| 2445 | ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_CHIP_ERASE, |
| 2446 | flash_table[hw->flash_vendor].cmdCHIP_ERASE); |
| 2447 | ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_RDID, |
| 2448 | flash_table[hw->flash_vendor].cmdRDID); |
| 2449 | ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_WREN, |
| 2450 | flash_table[hw->flash_vendor].cmdWREN); |
| 2451 | ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_RDSR, |
| 2452 | flash_table[hw->flash_vendor].cmdRDSR); |
| 2453 | ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_WRSR, |
| 2454 | flash_table[hw->flash_vendor].cmdWRSR); |
| 2455 | ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_READ, |
| 2456 | flash_table[hw->flash_vendor].cmdREAD); |
| 2457 | } |
| 2458 | |
| 2459 | /******************************************************************** |
| 2460 | * Performs basic configuration of the adapter. |
| 2461 | * |
| 2462 | * hw - Struct containing variables accessed by shared code |
| 2463 | * Assumes that the controller has previously been reset and is in a |
| 2464 | * post-reset uninitialized state. Initializes multicast table, |
| 2465 | * and Calls routines to setup link |
| 2466 | * Leaves the transmit and receive units disabled and uninitialized. |
| 2467 | ********************************************************************/ |
| 2468 | static s32 atl2_init_hw(struct atl2_hw *hw) |
| 2469 | { |
| 2470 | u32 ret_val = 0; |
| 2471 | |
| 2472 | atl2_init_pcie(hw); |
| 2473 | |
| 2474 | /* Zero out the Multicast HASH table */ |
| 2475 | /* clear the old settings from the multicast hash table */ |
| 2476 | ATL2_WRITE_REG(hw, REG_RX_HASH_TABLE, 0); |
| 2477 | ATL2_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, 1, 0); |
| 2478 | |
| 2479 | atl2_init_flash_opcode(hw); |
| 2480 | |
| 2481 | ret_val = atl2_phy_init(hw); |
| 2482 | |
| 2483 | return ret_val; |
| 2484 | } |
| 2485 | |
| 2486 | /* |
| 2487 | * Detects the current speed and duplex settings of the hardware. |
| 2488 | * |
| 2489 | * hw - Struct containing variables accessed by shared code |
| 2490 | * speed - Speed of the connection |
| 2491 | * duplex - Duplex setting of the connection |
| 2492 | */ |
| 2493 | static s32 atl2_get_speed_and_duplex(struct atl2_hw *hw, u16 *speed, |
| 2494 | u16 *duplex) |
| 2495 | { |
| 2496 | s32 ret_val; |
| 2497 | u16 phy_data; |
| 2498 | |
| 2499 | /* Read PHY Specific Status Register (17) */ |
| 2500 | ret_val = atl2_read_phy_reg(hw, MII_ATLX_PSSR, &phy_data); |
| 2501 | if (ret_val) |
| 2502 | return ret_val; |
| 2503 | |
| 2504 | if (!(phy_data & MII_ATLX_PSSR_SPD_DPLX_RESOLVED)) |
| 2505 | return ATLX_ERR_PHY_RES; |
| 2506 | |
| 2507 | switch (phy_data & MII_ATLX_PSSR_SPEED) { |
| 2508 | case MII_ATLX_PSSR_100MBS: |
| 2509 | *speed = SPEED_100; |
| 2510 | break; |
| 2511 | case MII_ATLX_PSSR_10MBS: |
| 2512 | *speed = SPEED_10; |
| 2513 | break; |
| 2514 | default: |
| 2515 | return ATLX_ERR_PHY_SPEED; |
| 2516 | break; |
| 2517 | } |
| 2518 | |
| 2519 | if (phy_data & MII_ATLX_PSSR_DPLX) |
| 2520 | *duplex = FULL_DUPLEX; |
| 2521 | else |
| 2522 | *duplex = HALF_DUPLEX; |
| 2523 | |
| 2524 | return 0; |
| 2525 | } |
| 2526 | |
| 2527 | /* |
| 2528 | * Reads the value from a PHY register |
| 2529 | * hw - Struct containing variables accessed by shared code |
| 2530 | * reg_addr - address of the PHY register to read |
| 2531 | */ |
| 2532 | static s32 atl2_read_phy_reg(struct atl2_hw *hw, u16 reg_addr, u16 *phy_data) |
| 2533 | { |
| 2534 | u32 val; |
| 2535 | int i; |
| 2536 | |
| 2537 | val = ((u32)(reg_addr & MDIO_REG_ADDR_MASK)) << MDIO_REG_ADDR_SHIFT | |
| 2538 | MDIO_START | |
| 2539 | MDIO_SUP_PREAMBLE | |
| 2540 | MDIO_RW | |
| 2541 | MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT; |
| 2542 | ATL2_WRITE_REG(hw, REG_MDIO_CTRL, val); |
| 2543 | |
| 2544 | wmb(); |
| 2545 | |
| 2546 | for (i = 0; i < MDIO_WAIT_TIMES; i++) { |
| 2547 | udelay(2); |
| 2548 | val = ATL2_READ_REG(hw, REG_MDIO_CTRL); |
| 2549 | if (!(val & (MDIO_START | MDIO_BUSY))) |
| 2550 | break; |
| 2551 | wmb(); |
| 2552 | } |
| 2553 | if (!(val & (MDIO_START | MDIO_BUSY))) { |
| 2554 | *phy_data = (u16)val; |
| 2555 | return 0; |
| 2556 | } |
| 2557 | |
| 2558 | return ATLX_ERR_PHY; |
| 2559 | } |
| 2560 | |
| 2561 | /* |
| 2562 | * Writes a value to a PHY register |
| 2563 | * hw - Struct containing variables accessed by shared code |
| 2564 | * reg_addr - address of the PHY register to write |
| 2565 | * data - data to write to the PHY |
| 2566 | */ |
| 2567 | static s32 atl2_write_phy_reg(struct atl2_hw *hw, u32 reg_addr, u16 phy_data) |
| 2568 | { |
| 2569 | int i; |
| 2570 | u32 val; |
| 2571 | |
| 2572 | val = ((u32)(phy_data & MDIO_DATA_MASK)) << MDIO_DATA_SHIFT | |
| 2573 | (reg_addr & MDIO_REG_ADDR_MASK) << MDIO_REG_ADDR_SHIFT | |
| 2574 | MDIO_SUP_PREAMBLE | |
| 2575 | MDIO_START | |
| 2576 | MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT; |
| 2577 | ATL2_WRITE_REG(hw, REG_MDIO_CTRL, val); |
| 2578 | |
| 2579 | wmb(); |
| 2580 | |
| 2581 | for (i = 0; i < MDIO_WAIT_TIMES; i++) { |
| 2582 | udelay(2); |
| 2583 | val = ATL2_READ_REG(hw, REG_MDIO_CTRL); |
| 2584 | if (!(val & (MDIO_START | MDIO_BUSY))) |
| 2585 | break; |
| 2586 | |
| 2587 | wmb(); |
| 2588 | } |
| 2589 | |
| 2590 | if (!(val & (MDIO_START | MDIO_BUSY))) |
| 2591 | return 0; |
| 2592 | |
| 2593 | return ATLX_ERR_PHY; |
| 2594 | } |
| 2595 | |
| 2596 | /* |
| 2597 | * Configures PHY autoneg and flow control advertisement settings |
| 2598 | * |
| 2599 | * hw - Struct containing variables accessed by shared code |
| 2600 | */ |
| 2601 | static s32 atl2_phy_setup_autoneg_adv(struct atl2_hw *hw) |
| 2602 | { |
| 2603 | s32 ret_val; |
| 2604 | s16 mii_autoneg_adv_reg; |
| 2605 | |
| 2606 | /* Read the MII Auto-Neg Advertisement Register (Address 4). */ |
| 2607 | mii_autoneg_adv_reg = MII_AR_DEFAULT_CAP_MASK; |
| 2608 | |
| 2609 | /* Need to parse autoneg_advertised and set up |
| 2610 | * the appropriate PHY registers. First we will parse for |
| 2611 | * autoneg_advertised software override. Since we can advertise |
| 2612 | * a plethora of combinations, we need to check each bit |
| 2613 | * individually. |
| 2614 | */ |
| 2615 | |
| 2616 | /* First we clear all the 10/100 mb speed bits in the Auto-Neg |
| 2617 | * Advertisement Register (Address 4) and the 1000 mb speed bits in |
| 2618 | * the 1000Base-T Control Register (Address 9). */ |
| 2619 | mii_autoneg_adv_reg &= ~MII_AR_SPEED_MASK; |
| 2620 | |
| 2621 | /* Need to parse MediaType and setup the |
| 2622 | * appropriate PHY registers. */ |
| 2623 | switch (hw->MediaType) { |
| 2624 | case MEDIA_TYPE_AUTO_SENSOR: |
| 2625 | mii_autoneg_adv_reg |= |
| 2626 | (MII_AR_10T_HD_CAPS | |
| 2627 | MII_AR_10T_FD_CAPS | |
| 2628 | MII_AR_100TX_HD_CAPS| |
| 2629 | MII_AR_100TX_FD_CAPS); |
| 2630 | hw->autoneg_advertised = |
| 2631 | ADVERTISE_10_HALF | |
| 2632 | ADVERTISE_10_FULL | |
| 2633 | ADVERTISE_100_HALF| |
| 2634 | ADVERTISE_100_FULL; |
| 2635 | break; |
| 2636 | case MEDIA_TYPE_100M_FULL: |
| 2637 | mii_autoneg_adv_reg |= MII_AR_100TX_FD_CAPS; |
| 2638 | hw->autoneg_advertised = ADVERTISE_100_FULL; |
| 2639 | break; |
| 2640 | case MEDIA_TYPE_100M_HALF: |
| 2641 | mii_autoneg_adv_reg |= MII_AR_100TX_HD_CAPS; |
| 2642 | hw->autoneg_advertised = ADVERTISE_100_HALF; |
| 2643 | break; |
| 2644 | case MEDIA_TYPE_10M_FULL: |
| 2645 | mii_autoneg_adv_reg |= MII_AR_10T_FD_CAPS; |
| 2646 | hw->autoneg_advertised = ADVERTISE_10_FULL; |
| 2647 | break; |
| 2648 | default: |
| 2649 | mii_autoneg_adv_reg |= MII_AR_10T_HD_CAPS; |
| 2650 | hw->autoneg_advertised = ADVERTISE_10_HALF; |
| 2651 | break; |
| 2652 | } |
| 2653 | |
| 2654 | /* flow control fixed to enable all */ |
| 2655 | mii_autoneg_adv_reg |= (MII_AR_ASM_DIR | MII_AR_PAUSE); |
| 2656 | |
| 2657 | hw->mii_autoneg_adv_reg = mii_autoneg_adv_reg; |
| 2658 | |
| 2659 | ret_val = atl2_write_phy_reg(hw, MII_ADVERTISE, mii_autoneg_adv_reg); |
| 2660 | |
| 2661 | if (ret_val) |
| 2662 | return ret_val; |
| 2663 | |
| 2664 | return 0; |
| 2665 | } |
| 2666 | |
| 2667 | /* |
| 2668 | * Resets the PHY and make all config validate |
| 2669 | * |
| 2670 | * hw - Struct containing variables accessed by shared code |
| 2671 | * |
| 2672 | * Sets bit 15 and 12 of the MII Control regiser (for F001 bug) |
| 2673 | */ |
| 2674 | static s32 atl2_phy_commit(struct atl2_hw *hw) |
| 2675 | { |
| 2676 | s32 ret_val; |
| 2677 | u16 phy_data; |
| 2678 | |
| 2679 | phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG; |
| 2680 | ret_val = atl2_write_phy_reg(hw, MII_BMCR, phy_data); |
| 2681 | if (ret_val) { |
| 2682 | u32 val; |
| 2683 | int i; |
| 2684 | /* pcie serdes link may be down ! */ |
| 2685 | for (i = 0; i < 25; i++) { |
| 2686 | msleep(1); |
| 2687 | val = ATL2_READ_REG(hw, REG_MDIO_CTRL); |
| 2688 | if (!(val & (MDIO_START | MDIO_BUSY))) |
| 2689 | break; |
| 2690 | } |
| 2691 | |
| 2692 | if (0 != (val & (MDIO_START | MDIO_BUSY))) { |
| 2693 | printk(KERN_ERR "atl2: PCIe link down for at least 25ms !\n"); |
| 2694 | return ret_val; |
| 2695 | } |
| 2696 | } |
| 2697 | return 0; |
| 2698 | } |
| 2699 | |
| 2700 | static s32 atl2_phy_init(struct atl2_hw *hw) |
| 2701 | { |
| 2702 | s32 ret_val; |
| 2703 | u16 phy_val; |
| 2704 | |
| 2705 | if (hw->phy_configured) |
| 2706 | return 0; |
| 2707 | |
| 2708 | /* Enable PHY */ |
| 2709 | ATL2_WRITE_REGW(hw, REG_PHY_ENABLE, 1); |
| 2710 | ATL2_WRITE_FLUSH(hw); |
| 2711 | msleep(1); |
| 2712 | |
| 2713 | /* check if the PHY is in powersaving mode */ |
| 2714 | atl2_write_phy_reg(hw, MII_DBG_ADDR, 0); |
| 2715 | atl2_read_phy_reg(hw, MII_DBG_DATA, &phy_val); |
| 2716 | |
| 2717 | /* 024E / 124E 0r 0274 / 1274 ? */ |
| 2718 | if (phy_val & 0x1000) { |
| 2719 | phy_val &= ~0x1000; |
| 2720 | atl2_write_phy_reg(hw, MII_DBG_DATA, phy_val); |
| 2721 | } |
| 2722 | |
| 2723 | msleep(1); |
| 2724 | |
| 2725 | /*Enable PHY LinkChange Interrupt */ |
| 2726 | ret_val = atl2_write_phy_reg(hw, 18, 0xC00); |
| 2727 | if (ret_val) |
| 2728 | return ret_val; |
| 2729 | |
| 2730 | /* setup AutoNeg parameters */ |
| 2731 | ret_val = atl2_phy_setup_autoneg_adv(hw); |
| 2732 | if (ret_val) |
| 2733 | return ret_val; |
| 2734 | |
| 2735 | /* SW.Reset & En-Auto-Neg to restart Auto-Neg */ |
| 2736 | ret_val = atl2_phy_commit(hw); |
| 2737 | if (ret_val) |
| 2738 | return ret_val; |
| 2739 | |
| 2740 | hw->phy_configured = true; |
| 2741 | |
| 2742 | return ret_val; |
| 2743 | } |
| 2744 | |
| 2745 | static void atl2_set_mac_addr(struct atl2_hw *hw) |
| 2746 | { |
| 2747 | u32 value; |
| 2748 | /* 00-0B-6A-F6-00-DC |
| 2749 | * 0: 6AF600DC 1: 000B |
| 2750 | * low dword */ |
| 2751 | value = (((u32)hw->mac_addr[2]) << 24) | |
| 2752 | (((u32)hw->mac_addr[3]) << 16) | |
| 2753 | (((u32)hw->mac_addr[4]) << 8) | |
| 2754 | (((u32)hw->mac_addr[5])); |
| 2755 | ATL2_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 0, value); |
| 2756 | /* hight dword */ |
| 2757 | value = (((u32)hw->mac_addr[0]) << 8) | |
| 2758 | (((u32)hw->mac_addr[1])); |
| 2759 | ATL2_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 1, value); |
| 2760 | } |
| 2761 | |
| 2762 | /* |
| 2763 | * check_eeprom_exist |
| 2764 | * return 0 if eeprom exist |
| 2765 | */ |
| 2766 | static int atl2_check_eeprom_exist(struct atl2_hw *hw) |
| 2767 | { |
| 2768 | u32 value; |
| 2769 | |
| 2770 | value = ATL2_READ_REG(hw, REG_SPI_FLASH_CTRL); |
| 2771 | if (value & SPI_FLASH_CTRL_EN_VPD) { |
| 2772 | value &= ~SPI_FLASH_CTRL_EN_VPD; |
| 2773 | ATL2_WRITE_REG(hw, REG_SPI_FLASH_CTRL, value); |
| 2774 | } |
| 2775 | value = ATL2_READ_REGW(hw, REG_PCIE_CAP_LIST); |
| 2776 | return ((value & 0xFF00) == 0x6C00) ? 0 : 1; |
| 2777 | } |
| 2778 | |
| 2779 | /* FIXME: This doesn't look right. -- CHS */ |
| 2780 | static bool atl2_write_eeprom(struct atl2_hw *hw, u32 offset, u32 value) |
| 2781 | { |
| 2782 | return true; |
| 2783 | } |
| 2784 | |
| 2785 | static bool atl2_read_eeprom(struct atl2_hw *hw, u32 Offset, u32 *pValue) |
| 2786 | { |
| 2787 | int i; |
| 2788 | u32 Control; |
| 2789 | |
| 2790 | if (Offset & 0x3) |
| 2791 | return false; /* address do not align */ |
| 2792 | |
| 2793 | ATL2_WRITE_REG(hw, REG_VPD_DATA, 0); |
| 2794 | Control = (Offset & VPD_CAP_VPD_ADDR_MASK) << VPD_CAP_VPD_ADDR_SHIFT; |
| 2795 | ATL2_WRITE_REG(hw, REG_VPD_CAP, Control); |
| 2796 | |
| 2797 | for (i = 0; i < 10; i++) { |
| 2798 | msleep(2); |
| 2799 | Control = ATL2_READ_REG(hw, REG_VPD_CAP); |
| 2800 | if (Control & VPD_CAP_VPD_FLAG) |
| 2801 | break; |
| 2802 | } |
| 2803 | |
| 2804 | if (Control & VPD_CAP_VPD_FLAG) { |
| 2805 | *pValue = ATL2_READ_REG(hw, REG_VPD_DATA); |
| 2806 | return true; |
| 2807 | } |
| 2808 | return false; /* timeout */ |
| 2809 | } |
| 2810 | |
| 2811 | static void atl2_force_ps(struct atl2_hw *hw) |
| 2812 | { |
| 2813 | u16 phy_val; |
| 2814 | |
| 2815 | atl2_write_phy_reg(hw, MII_DBG_ADDR, 0); |
| 2816 | atl2_read_phy_reg(hw, MII_DBG_DATA, &phy_val); |
| 2817 | atl2_write_phy_reg(hw, MII_DBG_DATA, phy_val | 0x1000); |
| 2818 | |
| 2819 | atl2_write_phy_reg(hw, MII_DBG_ADDR, 2); |
| 2820 | atl2_write_phy_reg(hw, MII_DBG_DATA, 0x3000); |
| 2821 | atl2_write_phy_reg(hw, MII_DBG_ADDR, 3); |
| 2822 | atl2_write_phy_reg(hw, MII_DBG_DATA, 0); |
| 2823 | } |
| 2824 | |
| 2825 | /* This is the only thing that needs to be changed to adjust the |
| 2826 | * maximum number of ports that the driver can manage. |
| 2827 | */ |
| 2828 | #define ATL2_MAX_NIC 4 |
| 2829 | |
| 2830 | #define OPTION_UNSET -1 |
| 2831 | #define OPTION_DISABLED 0 |
| 2832 | #define OPTION_ENABLED 1 |
| 2833 | |
| 2834 | /* All parameters are treated the same, as an integer array of values. |
| 2835 | * This macro just reduces the need to repeat the same declaration code |
| 2836 | * over and over (plus this helps to avoid typo bugs). |
| 2837 | */ |
| 2838 | #define ATL2_PARAM_INIT {[0 ... ATL2_MAX_NIC] = OPTION_UNSET} |
| 2839 | #ifndef module_param_array |
| 2840 | /* Module Parameters are always initialized to -1, so that the driver |
| 2841 | * can tell the difference between no user specified value or the |
| 2842 | * user asking for the default value. |
| 2843 | * The true default values are loaded in when atl2_check_options is called. |
| 2844 | * |
| 2845 | * This is a GCC extension to ANSI C. |
| 2846 | * See the item "Labeled Elements in Initializers" in the section |
| 2847 | * "Extensions to the C Language Family" of the GCC documentation. |
| 2848 | */ |
| 2849 | |
| 2850 | #define ATL2_PARAM(X, desc) \ |
| 2851 | static const int __devinitdata X[ATL2_MAX_NIC + 1] = ATL2_PARAM_INIT; \ |
| 2852 | MODULE_PARM(X, "1-" __MODULE_STRING(ATL2_MAX_NIC) "i"); \ |
| 2853 | MODULE_PARM_DESC(X, desc); |
| 2854 | #else |
| 2855 | #define ATL2_PARAM(X, desc) \ |
| 2856 | static int __devinitdata X[ATL2_MAX_NIC+1] = ATL2_PARAM_INIT; \ |
Hannes Eder | b79d8ff | 2009-02-14 11:15:17 +0000 | [diff] [blame] | 2857 | static unsigned int num_##X; \ |
Chris Snook | 452c1ce | 2008-09-14 19:56:10 -0500 | [diff] [blame] | 2858 | module_param_array_named(X, X, int, &num_##X, 0); \ |
| 2859 | MODULE_PARM_DESC(X, desc); |
| 2860 | #endif |
| 2861 | |
| 2862 | /* |
| 2863 | * Transmit Memory Size |
| 2864 | * Valid Range: 64-2048 |
| 2865 | * Default Value: 128 |
| 2866 | */ |
| 2867 | #define ATL2_MIN_TX_MEMSIZE 4 /* 4KB */ |
| 2868 | #define ATL2_MAX_TX_MEMSIZE 64 /* 64KB */ |
| 2869 | #define ATL2_DEFAULT_TX_MEMSIZE 8 /* 8KB */ |
| 2870 | ATL2_PARAM(TxMemSize, "Bytes of Transmit Memory"); |
| 2871 | |
| 2872 | /* |
| 2873 | * Receive Memory Block Count |
| 2874 | * Valid Range: 16-512 |
| 2875 | * Default Value: 128 |
| 2876 | */ |
| 2877 | #define ATL2_MIN_RXD_COUNT 16 |
| 2878 | #define ATL2_MAX_RXD_COUNT 512 |
| 2879 | #define ATL2_DEFAULT_RXD_COUNT 64 |
| 2880 | ATL2_PARAM(RxMemBlock, "Number of receive memory block"); |
| 2881 | |
| 2882 | /* |
| 2883 | * User Specified MediaType Override |
| 2884 | * |
| 2885 | * Valid Range: 0-5 |
| 2886 | * - 0 - auto-negotiate at all supported speeds |
| 2887 | * - 1 - only link at 1000Mbps Full Duplex |
| 2888 | * - 2 - only link at 100Mbps Full Duplex |
| 2889 | * - 3 - only link at 100Mbps Half Duplex |
| 2890 | * - 4 - only link at 10Mbps Full Duplex |
| 2891 | * - 5 - only link at 10Mbps Half Duplex |
| 2892 | * Default Value: 0 |
| 2893 | */ |
| 2894 | ATL2_PARAM(MediaType, "MediaType Select"); |
| 2895 | |
| 2896 | /* |
| 2897 | * Interrupt Moderate Timer in units of 2048 ns (~2 us) |
| 2898 | * Valid Range: 10-65535 |
| 2899 | * Default Value: 45000(90ms) |
| 2900 | */ |
| 2901 | #define INT_MOD_DEFAULT_CNT 100 /* 200us */ |
| 2902 | #define INT_MOD_MAX_CNT 65000 |
| 2903 | #define INT_MOD_MIN_CNT 50 |
| 2904 | ATL2_PARAM(IntModTimer, "Interrupt Moderator Timer"); |
| 2905 | |
| 2906 | /* |
| 2907 | * FlashVendor |
| 2908 | * Valid Range: 0-2 |
| 2909 | * 0 - Atmel |
| 2910 | * 1 - SST |
| 2911 | * 2 - ST |
| 2912 | */ |
| 2913 | ATL2_PARAM(FlashVendor, "SPI Flash Vendor"); |
| 2914 | |
| 2915 | #define AUTONEG_ADV_DEFAULT 0x2F |
| 2916 | #define AUTONEG_ADV_MASK 0x2F |
| 2917 | #define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL |
| 2918 | |
| 2919 | #define FLASH_VENDOR_DEFAULT 0 |
| 2920 | #define FLASH_VENDOR_MIN 0 |
| 2921 | #define FLASH_VENDOR_MAX 2 |
| 2922 | |
| 2923 | struct atl2_option { |
| 2924 | enum { enable_option, range_option, list_option } type; |
| 2925 | char *name; |
| 2926 | char *err; |
| 2927 | int def; |
| 2928 | union { |
| 2929 | struct { /* range_option info */ |
| 2930 | int min; |
| 2931 | int max; |
| 2932 | } r; |
| 2933 | struct { /* list_option info */ |
| 2934 | int nr; |
| 2935 | struct atl2_opt_list { int i; char *str; } *p; |
| 2936 | } l; |
| 2937 | } arg; |
| 2938 | }; |
| 2939 | |
| 2940 | static int __devinit atl2_validate_option(int *value, struct atl2_option *opt) |
| 2941 | { |
| 2942 | int i; |
| 2943 | struct atl2_opt_list *ent; |
| 2944 | |
| 2945 | if (*value == OPTION_UNSET) { |
| 2946 | *value = opt->def; |
| 2947 | return 0; |
| 2948 | } |
| 2949 | |
| 2950 | switch (opt->type) { |
| 2951 | case enable_option: |
| 2952 | switch (*value) { |
| 2953 | case OPTION_ENABLED: |
| 2954 | printk(KERN_INFO "%s Enabled\n", opt->name); |
| 2955 | return 0; |
| 2956 | break; |
| 2957 | case OPTION_DISABLED: |
| 2958 | printk(KERN_INFO "%s Disabled\n", opt->name); |
| 2959 | return 0; |
| 2960 | break; |
| 2961 | } |
| 2962 | break; |
| 2963 | case range_option: |
| 2964 | if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) { |
| 2965 | printk(KERN_INFO "%s set to %i\n", opt->name, *value); |
| 2966 | return 0; |
| 2967 | } |
| 2968 | break; |
| 2969 | case list_option: |
| 2970 | for (i = 0; i < opt->arg.l.nr; i++) { |
| 2971 | ent = &opt->arg.l.p[i]; |
| 2972 | if (*value == ent->i) { |
| 2973 | if (ent->str[0] != '\0') |
| 2974 | printk(KERN_INFO "%s\n", ent->str); |
| 2975 | return 0; |
| 2976 | } |
| 2977 | } |
| 2978 | break; |
| 2979 | default: |
| 2980 | BUG(); |
| 2981 | } |
| 2982 | |
| 2983 | printk(KERN_INFO "Invalid %s specified (%i) %s\n", |
| 2984 | opt->name, *value, opt->err); |
| 2985 | *value = opt->def; |
| 2986 | return -1; |
| 2987 | } |
| 2988 | |
| 2989 | /* |
| 2990 | * atl2_check_options - Range Checking for Command Line Parameters |
| 2991 | * @adapter: board private structure |
| 2992 | * |
| 2993 | * This routine checks all command line parameters for valid user |
| 2994 | * input. If an invalid value is given, or if no user specified |
| 2995 | * value exists, a default value is used. The final value is stored |
| 2996 | * in a variable in the adapter structure. |
| 2997 | */ |
| 2998 | static void __devinit atl2_check_options(struct atl2_adapter *adapter) |
| 2999 | { |
| 3000 | int val; |
| 3001 | struct atl2_option opt; |
| 3002 | int bd = adapter->bd_number; |
| 3003 | if (bd >= ATL2_MAX_NIC) { |
| 3004 | printk(KERN_NOTICE "Warning: no configuration for board #%i\n", |
| 3005 | bd); |
| 3006 | printk(KERN_NOTICE "Using defaults for all values\n"); |
| 3007 | #ifndef module_param_array |
| 3008 | bd = ATL2_MAX_NIC; |
| 3009 | #endif |
| 3010 | } |
| 3011 | |
| 3012 | /* Bytes of Transmit Memory */ |
| 3013 | opt.type = range_option; |
| 3014 | opt.name = "Bytes of Transmit Memory"; |
| 3015 | opt.err = "using default of " __MODULE_STRING(ATL2_DEFAULT_TX_MEMSIZE); |
| 3016 | opt.def = ATL2_DEFAULT_TX_MEMSIZE; |
| 3017 | opt.arg.r.min = ATL2_MIN_TX_MEMSIZE; |
| 3018 | opt.arg.r.max = ATL2_MAX_TX_MEMSIZE; |
| 3019 | #ifdef module_param_array |
| 3020 | if (num_TxMemSize > bd) { |
| 3021 | #endif |
| 3022 | val = TxMemSize[bd]; |
| 3023 | atl2_validate_option(&val, &opt); |
| 3024 | adapter->txd_ring_size = ((u32) val) * 1024; |
| 3025 | #ifdef module_param_array |
| 3026 | } else |
| 3027 | adapter->txd_ring_size = ((u32)opt.def) * 1024; |
| 3028 | #endif |
| 3029 | /* txs ring size: */ |
| 3030 | adapter->txs_ring_size = adapter->txd_ring_size / 128; |
| 3031 | if (adapter->txs_ring_size > 160) |
| 3032 | adapter->txs_ring_size = 160; |
| 3033 | |
| 3034 | /* Receive Memory Block Count */ |
| 3035 | opt.type = range_option; |
| 3036 | opt.name = "Number of receive memory block"; |
| 3037 | opt.err = "using default of " __MODULE_STRING(ATL2_DEFAULT_RXD_COUNT); |
| 3038 | opt.def = ATL2_DEFAULT_RXD_COUNT; |
| 3039 | opt.arg.r.min = ATL2_MIN_RXD_COUNT; |
| 3040 | opt.arg.r.max = ATL2_MAX_RXD_COUNT; |
| 3041 | #ifdef module_param_array |
| 3042 | if (num_RxMemBlock > bd) { |
| 3043 | #endif |
| 3044 | val = RxMemBlock[bd]; |
| 3045 | atl2_validate_option(&val, &opt); |
| 3046 | adapter->rxd_ring_size = (u32)val; |
| 3047 | /* FIXME */ |
| 3048 | /* ((u16)val)&~1; */ /* even number */ |
| 3049 | #ifdef module_param_array |
| 3050 | } else |
| 3051 | adapter->rxd_ring_size = (u32)opt.def; |
| 3052 | #endif |
| 3053 | /* init RXD Flow control value */ |
| 3054 | adapter->hw.fc_rxd_hi = (adapter->rxd_ring_size / 8) * 7; |
| 3055 | adapter->hw.fc_rxd_lo = (ATL2_MIN_RXD_COUNT / 8) > |
| 3056 | (adapter->rxd_ring_size / 12) ? (ATL2_MIN_RXD_COUNT / 8) : |
| 3057 | (adapter->rxd_ring_size / 12); |
| 3058 | |
| 3059 | /* Interrupt Moderate Timer */ |
| 3060 | opt.type = range_option; |
| 3061 | opt.name = "Interrupt Moderate Timer"; |
| 3062 | opt.err = "using default of " __MODULE_STRING(INT_MOD_DEFAULT_CNT); |
| 3063 | opt.def = INT_MOD_DEFAULT_CNT; |
| 3064 | opt.arg.r.min = INT_MOD_MIN_CNT; |
| 3065 | opt.arg.r.max = INT_MOD_MAX_CNT; |
| 3066 | #ifdef module_param_array |
| 3067 | if (num_IntModTimer > bd) { |
| 3068 | #endif |
| 3069 | val = IntModTimer[bd]; |
| 3070 | atl2_validate_option(&val, &opt); |
| 3071 | adapter->imt = (u16) val; |
| 3072 | #ifdef module_param_array |
| 3073 | } else |
| 3074 | adapter->imt = (u16)(opt.def); |
| 3075 | #endif |
| 3076 | /* Flash Vendor */ |
| 3077 | opt.type = range_option; |
| 3078 | opt.name = "SPI Flash Vendor"; |
| 3079 | opt.err = "using default of " __MODULE_STRING(FLASH_VENDOR_DEFAULT); |
| 3080 | opt.def = FLASH_VENDOR_DEFAULT; |
| 3081 | opt.arg.r.min = FLASH_VENDOR_MIN; |
| 3082 | opt.arg.r.max = FLASH_VENDOR_MAX; |
| 3083 | #ifdef module_param_array |
| 3084 | if (num_FlashVendor > bd) { |
| 3085 | #endif |
| 3086 | val = FlashVendor[bd]; |
| 3087 | atl2_validate_option(&val, &opt); |
| 3088 | adapter->hw.flash_vendor = (u8) val; |
| 3089 | #ifdef module_param_array |
| 3090 | } else |
| 3091 | adapter->hw.flash_vendor = (u8)(opt.def); |
| 3092 | #endif |
| 3093 | /* MediaType */ |
| 3094 | opt.type = range_option; |
| 3095 | opt.name = "Speed/Duplex Selection"; |
| 3096 | opt.err = "using default of " __MODULE_STRING(MEDIA_TYPE_AUTO_SENSOR); |
| 3097 | opt.def = MEDIA_TYPE_AUTO_SENSOR; |
| 3098 | opt.arg.r.min = MEDIA_TYPE_AUTO_SENSOR; |
| 3099 | opt.arg.r.max = MEDIA_TYPE_10M_HALF; |
| 3100 | #ifdef module_param_array |
| 3101 | if (num_MediaType > bd) { |
| 3102 | #endif |
| 3103 | val = MediaType[bd]; |
| 3104 | atl2_validate_option(&val, &opt); |
| 3105 | adapter->hw.MediaType = (u16) val; |
| 3106 | #ifdef module_param_array |
| 3107 | } else |
| 3108 | adapter->hw.MediaType = (u16)(opt.def); |
| 3109 | #endif |
| 3110 | } |