Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright(c) 2008 - 2009 Atheros Corporation. All rights reserved. |
| 3 | * |
| 4 | * Derived from Intel e1000 driver |
| 5 | * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of the GNU General Public License as published by the Free |
| 9 | * Software Foundation; either version 2 of the License, or (at your option) |
| 10 | * any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 15 | * more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License along with |
| 18 | * this program; if not, write to the Free Software Foundation, Inc., 59 |
| 19 | * Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 20 | */ |
| 21 | |
| 22 | #include "atl1c.h" |
| 23 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 24 | #define ATL1C_DRV_VERSION "1.0.1.0-NAPI" |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 25 | char atl1c_driver_name[] = "atl1c"; |
| 26 | char atl1c_driver_version[] = ATL1C_DRV_VERSION; |
| 27 | #define PCI_DEVICE_ID_ATTANSIC_L2C 0x1062 |
| 28 | #define PCI_DEVICE_ID_ATTANSIC_L1C 0x1063 |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 29 | #define PCI_DEVICE_ID_ATHEROS_L2C_B 0x2060 /* AR8152 v1.1 Fast 10/100 */ |
| 30 | #define PCI_DEVICE_ID_ATHEROS_L2C_B2 0x2062 /* AR8152 v2.0 Fast 10/100 */ |
| 31 | #define PCI_DEVICE_ID_ATHEROS_L1D 0x1073 /* AR8151 v1.0 Gigabit 1000 */ |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 32 | #define PCI_DEVICE_ID_ATHEROS_L1D_2_0 0x1083 /* AR8151 v2.0 Gigabit 1000 */ |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 33 | #define L2CB_V10 0xc0 |
| 34 | #define L2CB_V11 0xc1 |
| 35 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 36 | /* |
| 37 | * atl1c_pci_tbl - PCI Device ID Table |
| 38 | * |
| 39 | * Wildcard entries (PCI_ANY_ID) should come last |
| 40 | * Last entry must be all 0s |
| 41 | * |
| 42 | * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, |
| 43 | * Class, Class Mask, private data (not used) } |
| 44 | */ |
Alexey Dobriyan | a3aa188 | 2010-01-07 11:58:11 +0000 | [diff] [blame] | 45 | static DEFINE_PCI_DEVICE_TABLE(atl1c_pci_tbl) = { |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 46 | {PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATTANSIC_L1C)}, |
| 47 | {PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATTANSIC_L2C)}, |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 48 | {PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATHEROS_L2C_B)}, |
| 49 | {PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATHEROS_L2C_B2)}, |
| 50 | {PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATHEROS_L1D)}, |
Chuck Ebbert | 94dde7e | 2011-02-02 15:02:08 -0800 | [diff] [blame] | 51 | {PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATHEROS_L1D_2_0)}, |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 52 | /* required last entry */ |
| 53 | { 0 } |
| 54 | }; |
| 55 | MODULE_DEVICE_TABLE(pci, atl1c_pci_tbl); |
| 56 | |
| 57 | MODULE_AUTHOR("Jie Yang <jie.yang@atheros.com>"); |
| 58 | MODULE_DESCRIPTION("Atheros 1000M Ethernet Network Driver"); |
| 59 | MODULE_LICENSE("GPL"); |
| 60 | MODULE_VERSION(ATL1C_DRV_VERSION); |
| 61 | |
| 62 | static int atl1c_stop_mac(struct atl1c_hw *hw); |
| 63 | static void atl1c_enable_rx_ctrl(struct atl1c_hw *hw); |
| 64 | static void atl1c_enable_tx_ctrl(struct atl1c_hw *hw); |
| 65 | static void atl1c_disable_l0s_l1(struct atl1c_hw *hw); |
| 66 | static void atl1c_set_aspm(struct atl1c_hw *hw, bool linkup); |
| 67 | static void atl1c_setup_mac_ctrl(struct atl1c_adapter *adapter); |
| 68 | static void atl1c_clean_rx_irq(struct atl1c_adapter *adapter, u8 que, |
| 69 | int *work_done, int work_to_do); |
stephen hemminger | 0fb1e54 | 2010-10-21 07:50:49 +0000 | [diff] [blame] | 70 | static int atl1c_up(struct atl1c_adapter *adapter); |
| 71 | static void atl1c_down(struct atl1c_adapter *adapter); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 72 | |
| 73 | static const u16 atl1c_pay_load_size[] = { |
| 74 | 128, 256, 512, 1024, 2048, 4096, |
| 75 | }; |
| 76 | |
| 77 | static const u16 atl1c_rfd_prod_idx_regs[AT_MAX_RECEIVE_QUEUE] = |
| 78 | { |
| 79 | REG_MB_RFD0_PROD_IDX, |
| 80 | REG_MB_RFD1_PROD_IDX, |
| 81 | REG_MB_RFD2_PROD_IDX, |
| 82 | REG_MB_RFD3_PROD_IDX |
| 83 | }; |
| 84 | |
| 85 | static const u16 atl1c_rfd_addr_lo_regs[AT_MAX_RECEIVE_QUEUE] = |
| 86 | { |
| 87 | REG_RFD0_HEAD_ADDR_LO, |
| 88 | REG_RFD1_HEAD_ADDR_LO, |
| 89 | REG_RFD2_HEAD_ADDR_LO, |
| 90 | REG_RFD3_HEAD_ADDR_LO |
| 91 | }; |
| 92 | |
| 93 | static const u16 atl1c_rrd_addr_lo_regs[AT_MAX_RECEIVE_QUEUE] = |
| 94 | { |
| 95 | REG_RRD0_HEAD_ADDR_LO, |
| 96 | REG_RRD1_HEAD_ADDR_LO, |
| 97 | REG_RRD2_HEAD_ADDR_LO, |
| 98 | REG_RRD3_HEAD_ADDR_LO |
| 99 | }; |
| 100 | |
| 101 | static const u32 atl1c_default_msg = NETIF_MSG_DRV | NETIF_MSG_PROBE | |
| 102 | NETIF_MSG_LINK | NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 103 | static void atl1c_pcie_patch(struct atl1c_hw *hw) |
| 104 | { |
| 105 | u32 data; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 106 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 107 | AT_READ_REG(hw, REG_PCIE_PHYMISC, &data); |
| 108 | data |= PCIE_PHYMISC_FORCE_RCV_DET; |
| 109 | AT_WRITE_REG(hw, REG_PCIE_PHYMISC, data); |
| 110 | |
| 111 | if (hw->nic_type == athr_l2c_b && hw->revision_id == L2CB_V10) { |
| 112 | AT_READ_REG(hw, REG_PCIE_PHYMISC2, &data); |
| 113 | |
| 114 | data &= ~(PCIE_PHYMISC2_SERDES_CDR_MASK << |
| 115 | PCIE_PHYMISC2_SERDES_CDR_SHIFT); |
| 116 | data |= 3 << PCIE_PHYMISC2_SERDES_CDR_SHIFT; |
| 117 | data &= ~(PCIE_PHYMISC2_SERDES_TH_MASK << |
| 118 | PCIE_PHYMISC2_SERDES_TH_SHIFT); |
| 119 | data |= 3 << PCIE_PHYMISC2_SERDES_TH_SHIFT; |
| 120 | AT_WRITE_REG(hw, REG_PCIE_PHYMISC2, data); |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | /* FIXME: no need any more ? */ |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 125 | /* |
| 126 | * atl1c_init_pcie - init PCIE module |
| 127 | */ |
| 128 | static void atl1c_reset_pcie(struct atl1c_hw *hw, u32 flag) |
| 129 | { |
| 130 | u32 data; |
| 131 | u32 pci_cmd; |
| 132 | struct pci_dev *pdev = hw->adapter->pdev; |
| 133 | |
| 134 | AT_READ_REG(hw, PCI_COMMAND, &pci_cmd); |
| 135 | pci_cmd &= ~PCI_COMMAND_INTX_DISABLE; |
| 136 | pci_cmd |= (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | |
| 137 | PCI_COMMAND_IO); |
| 138 | AT_WRITE_REG(hw, PCI_COMMAND, pci_cmd); |
| 139 | |
| 140 | /* |
| 141 | * Clear any PowerSaveing Settings |
| 142 | */ |
| 143 | pci_enable_wake(pdev, PCI_D3hot, 0); |
| 144 | pci_enable_wake(pdev, PCI_D3cold, 0); |
| 145 | |
| 146 | /* |
| 147 | * Mask some pcie error bits |
| 148 | */ |
| 149 | AT_READ_REG(hw, REG_PCIE_UC_SEVERITY, &data); |
| 150 | data &= ~PCIE_UC_SERVRITY_DLP; |
| 151 | data &= ~PCIE_UC_SERVRITY_FCP; |
| 152 | AT_WRITE_REG(hw, REG_PCIE_UC_SEVERITY, data); |
| 153 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 154 | AT_READ_REG(hw, REG_LTSSM_ID_CTRL, &data); |
| 155 | data &= ~LTSSM_ID_EN_WRO; |
| 156 | AT_WRITE_REG(hw, REG_LTSSM_ID_CTRL, data); |
| 157 | |
| 158 | atl1c_pcie_patch(hw); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 159 | if (flag & ATL1C_PCIE_L0S_L1_DISABLE) |
| 160 | atl1c_disable_l0s_l1(hw); |
| 161 | if (flag & ATL1C_PCIE_PHY_RESET) |
| 162 | AT_WRITE_REG(hw, REG_GPHY_CTRL, GPHY_CTRL_DEFAULT); |
| 163 | else |
| 164 | AT_WRITE_REG(hw, REG_GPHY_CTRL, |
| 165 | GPHY_CTRL_DEFAULT | GPHY_CTRL_EXT_RESET); |
| 166 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 167 | msleep(5); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 168 | } |
| 169 | |
| 170 | /* |
| 171 | * atl1c_irq_enable - Enable default interrupt generation settings |
| 172 | * @adapter: board private structure |
| 173 | */ |
| 174 | static inline void atl1c_irq_enable(struct atl1c_adapter *adapter) |
| 175 | { |
| 176 | if (likely(atomic_dec_and_test(&adapter->irq_sem))) { |
| 177 | AT_WRITE_REG(&adapter->hw, REG_ISR, 0x7FFFFFFF); |
| 178 | AT_WRITE_REG(&adapter->hw, REG_IMR, adapter->hw.intr_mask); |
| 179 | AT_WRITE_FLUSH(&adapter->hw); |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | /* |
| 184 | * atl1c_irq_disable - Mask off interrupt generation on the NIC |
| 185 | * @adapter: board private structure |
| 186 | */ |
| 187 | static inline void atl1c_irq_disable(struct atl1c_adapter *adapter) |
| 188 | { |
| 189 | atomic_inc(&adapter->irq_sem); |
| 190 | AT_WRITE_REG(&adapter->hw, REG_IMR, 0); |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 191 | AT_WRITE_REG(&adapter->hw, REG_ISR, ISR_DIS_INT); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 192 | AT_WRITE_FLUSH(&adapter->hw); |
| 193 | synchronize_irq(adapter->pdev->irq); |
| 194 | } |
| 195 | |
| 196 | /* |
| 197 | * atl1c_irq_reset - reset interrupt confiure on the NIC |
| 198 | * @adapter: board private structure |
| 199 | */ |
| 200 | static inline void atl1c_irq_reset(struct atl1c_adapter *adapter) |
| 201 | { |
| 202 | atomic_set(&adapter->irq_sem, 1); |
| 203 | atl1c_irq_enable(adapter); |
| 204 | } |
| 205 | |
| 206 | /* |
Joe Perches | c930a66 | 2009-05-31 20:44:54 +0000 | [diff] [blame] | 207 | * atl1c_wait_until_idle - wait up to AT_HW_MAX_IDLE_DELAY reads |
| 208 | * of the idle status register until the device is actually idle |
| 209 | */ |
| 210 | static u32 atl1c_wait_until_idle(struct atl1c_hw *hw) |
| 211 | { |
| 212 | int timeout; |
| 213 | u32 data; |
| 214 | |
| 215 | for (timeout = 0; timeout < AT_HW_MAX_IDLE_DELAY; timeout++) { |
| 216 | AT_READ_REG(hw, REG_IDLE_STATUS, &data); |
| 217 | if ((data & IDLE_STATUS_MASK) == 0) |
| 218 | return 0; |
| 219 | msleep(1); |
| 220 | } |
| 221 | return data; |
| 222 | } |
| 223 | |
| 224 | /* |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 225 | * atl1c_phy_config - Timer Call-back |
| 226 | * @data: pointer to netdev cast into an unsigned long |
| 227 | */ |
| 228 | static void atl1c_phy_config(unsigned long data) |
| 229 | { |
| 230 | struct atl1c_adapter *adapter = (struct atl1c_adapter *) data; |
| 231 | struct atl1c_hw *hw = &adapter->hw; |
| 232 | unsigned long flags; |
| 233 | |
| 234 | spin_lock_irqsave(&adapter->mdio_lock, flags); |
| 235 | atl1c_restart_autoneg(hw); |
| 236 | spin_unlock_irqrestore(&adapter->mdio_lock, flags); |
| 237 | } |
| 238 | |
| 239 | void atl1c_reinit_locked(struct atl1c_adapter *adapter) |
| 240 | { |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 241 | WARN_ON(in_interrupt()); |
| 242 | atl1c_down(adapter); |
| 243 | atl1c_up(adapter); |
| 244 | clear_bit(__AT_RESETTING, &adapter->flags); |
| 245 | } |
| 246 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 247 | static void atl1c_check_link_status(struct atl1c_adapter *adapter) |
| 248 | { |
| 249 | struct atl1c_hw *hw = &adapter->hw; |
| 250 | struct net_device *netdev = adapter->netdev; |
| 251 | struct pci_dev *pdev = adapter->pdev; |
| 252 | int err; |
| 253 | unsigned long flags; |
| 254 | u16 speed, duplex, phy_data; |
| 255 | |
| 256 | spin_lock_irqsave(&adapter->mdio_lock, flags); |
| 257 | /* MII_BMSR must read twise */ |
| 258 | atl1c_read_phy_reg(hw, MII_BMSR, &phy_data); |
| 259 | atl1c_read_phy_reg(hw, MII_BMSR, &phy_data); |
| 260 | spin_unlock_irqrestore(&adapter->mdio_lock, flags); |
| 261 | |
| 262 | if ((phy_data & BMSR_LSTATUS) == 0) { |
| 263 | /* link down */ |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 264 | hw->hibernate = true; |
| 265 | if (atl1c_stop_mac(hw) != 0) |
| 266 | if (netif_msg_hw(adapter)) |
| 267 | dev_warn(&pdev->dev, "stop mac failed\n"); |
| 268 | atl1c_set_aspm(hw, false); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 269 | netif_carrier_off(netdev); |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 270 | netif_stop_queue(netdev); |
| 271 | atl1c_phy_reset(hw); |
| 272 | atl1c_phy_init(&adapter->hw); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 273 | } else { |
| 274 | /* Link Up */ |
| 275 | hw->hibernate = false; |
| 276 | spin_lock_irqsave(&adapter->mdio_lock, flags); |
| 277 | err = atl1c_get_speed_and_duplex(hw, &speed, &duplex); |
| 278 | spin_unlock_irqrestore(&adapter->mdio_lock, flags); |
| 279 | if (unlikely(err)) |
| 280 | return; |
| 281 | /* link result is our setting */ |
| 282 | if (adapter->link_speed != speed || |
| 283 | adapter->link_duplex != duplex) { |
| 284 | adapter->link_speed = speed; |
| 285 | adapter->link_duplex = duplex; |
Jie Yang | 52fbc10 | 2009-04-27 19:42:03 +0000 | [diff] [blame] | 286 | atl1c_set_aspm(hw, true); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 287 | atl1c_enable_tx_ctrl(hw); |
| 288 | atl1c_enable_rx_ctrl(hw); |
| 289 | atl1c_setup_mac_ctrl(adapter); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 290 | if (netif_msg_link(adapter)) |
| 291 | dev_info(&pdev->dev, |
| 292 | "%s: %s NIC Link is Up<%d Mbps %s>\n", |
| 293 | atl1c_driver_name, netdev->name, |
| 294 | adapter->link_speed, |
| 295 | adapter->link_duplex == FULL_DUPLEX ? |
| 296 | "Full Duplex" : "Half Duplex"); |
| 297 | } |
| 298 | if (!netif_carrier_ok(netdev)) |
| 299 | netif_carrier_on(netdev); |
| 300 | } |
| 301 | } |
| 302 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 303 | static void atl1c_link_chg_event(struct atl1c_adapter *adapter) |
| 304 | { |
| 305 | struct net_device *netdev = adapter->netdev; |
| 306 | struct pci_dev *pdev = adapter->pdev; |
| 307 | u16 phy_data; |
| 308 | u16 link_up; |
| 309 | |
| 310 | spin_lock(&adapter->mdio_lock); |
| 311 | atl1c_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data); |
| 312 | atl1c_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data); |
| 313 | spin_unlock(&adapter->mdio_lock); |
| 314 | link_up = phy_data & BMSR_LSTATUS; |
| 315 | /* notify upper layer link down ASAP */ |
| 316 | if (!link_up) { |
| 317 | if (netif_carrier_ok(netdev)) { |
| 318 | /* old link state: Up */ |
| 319 | netif_carrier_off(netdev); |
| 320 | if (netif_msg_link(adapter)) |
| 321 | dev_info(&pdev->dev, |
| 322 | "%s: %s NIC Link is Down\n", |
| 323 | atl1c_driver_name, netdev->name); |
| 324 | adapter->link_speed = SPEED_0; |
| 325 | } |
| 326 | } |
Jie Yang | cb19054 | 2009-12-06 23:16:58 +0000 | [diff] [blame] | 327 | |
Tim Gardner | cb77183 | 2011-04-20 09:00:49 +0000 | [diff] [blame] | 328 | set_bit(ATL1C_WORK_EVENT_LINK_CHANGE, &adapter->work_event); |
Jie Yang | cb19054 | 2009-12-06 23:16:58 +0000 | [diff] [blame] | 329 | schedule_work(&adapter->common_task); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 330 | } |
| 331 | |
Jie Yang | cb19054 | 2009-12-06 23:16:58 +0000 | [diff] [blame] | 332 | static void atl1c_common_task(struct work_struct *work) |
| 333 | { |
| 334 | struct atl1c_adapter *adapter; |
| 335 | struct net_device *netdev; |
| 336 | |
| 337 | adapter = container_of(work, struct atl1c_adapter, common_task); |
| 338 | netdev = adapter->netdev; |
| 339 | |
Tim Gardner | cb77183 | 2011-04-20 09:00:49 +0000 | [diff] [blame] | 340 | if (test_and_clear_bit(ATL1C_WORK_EVENT_RESET, &adapter->work_event)) { |
Jie Yang | cb19054 | 2009-12-06 23:16:58 +0000 | [diff] [blame] | 341 | netif_device_detach(netdev); |
| 342 | atl1c_down(adapter); |
| 343 | atl1c_up(adapter); |
| 344 | netif_device_attach(netdev); |
Jie Yang | cb19054 | 2009-12-06 23:16:58 +0000 | [diff] [blame] | 345 | } |
| 346 | |
Tim Gardner | cb77183 | 2011-04-20 09:00:49 +0000 | [diff] [blame] | 347 | if (test_and_clear_bit(ATL1C_WORK_EVENT_LINK_CHANGE, |
| 348 | &adapter->work_event)) |
Jie Yang | cb19054 | 2009-12-06 23:16:58 +0000 | [diff] [blame] | 349 | atl1c_check_link_status(adapter); |
Jie Yang | cb19054 | 2009-12-06 23:16:58 +0000 | [diff] [blame] | 350 | } |
| 351 | |
| 352 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 353 | static void atl1c_del_timer(struct atl1c_adapter *adapter) |
| 354 | { |
| 355 | del_timer_sync(&adapter->phy_config_timer); |
| 356 | } |
| 357 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 358 | |
| 359 | /* |
| 360 | * atl1c_tx_timeout - Respond to a Tx Hang |
| 361 | * @netdev: network interface device structure |
| 362 | */ |
| 363 | static void atl1c_tx_timeout(struct net_device *netdev) |
| 364 | { |
| 365 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 366 | |
| 367 | /* Do the reset outside of interrupt context */ |
Tim Gardner | cb77183 | 2011-04-20 09:00:49 +0000 | [diff] [blame] | 368 | set_bit(ATL1C_WORK_EVENT_RESET, &adapter->work_event); |
Jie Yang | cb19054 | 2009-12-06 23:16:58 +0000 | [diff] [blame] | 369 | schedule_work(&adapter->common_task); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 370 | } |
| 371 | |
| 372 | /* |
| 373 | * atl1c_set_multi - Multicast and Promiscuous mode set |
| 374 | * @netdev: network interface device structure |
| 375 | * |
| 376 | * The set_multi entry point is called whenever the multicast address |
| 377 | * list or the network interface flags are updated. This routine is |
| 378 | * responsible for configuring the hardware for proper multicast, |
| 379 | * promiscuous mode, and all-multi behavior. |
| 380 | */ |
| 381 | static void atl1c_set_multi(struct net_device *netdev) |
| 382 | { |
| 383 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 384 | struct atl1c_hw *hw = &adapter->hw; |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 385 | struct netdev_hw_addr *ha; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 386 | u32 mac_ctrl_data; |
| 387 | u32 hash_value; |
| 388 | |
| 389 | /* Check for Promiscuous and All Multicast modes */ |
| 390 | AT_READ_REG(hw, REG_MAC_CTRL, &mac_ctrl_data); |
| 391 | |
| 392 | if (netdev->flags & IFF_PROMISC) { |
| 393 | mac_ctrl_data |= MAC_CTRL_PROMIS_EN; |
| 394 | } else if (netdev->flags & IFF_ALLMULTI) { |
| 395 | mac_ctrl_data |= MAC_CTRL_MC_ALL_EN; |
| 396 | mac_ctrl_data &= ~MAC_CTRL_PROMIS_EN; |
| 397 | } else { |
| 398 | mac_ctrl_data &= ~(MAC_CTRL_PROMIS_EN | MAC_CTRL_MC_ALL_EN); |
| 399 | } |
| 400 | |
| 401 | AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl_data); |
| 402 | |
| 403 | /* clear the old settings from the multicast hash table */ |
| 404 | AT_WRITE_REG(hw, REG_RX_HASH_TABLE, 0); |
| 405 | AT_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, 1, 0); |
| 406 | |
| 407 | /* comoute mc addresses' hash value ,and put it into hash table */ |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 408 | netdev_for_each_mc_addr(ha, netdev) { |
| 409 | hash_value = atl1c_hash_mc_addr(hw, ha->addr); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 410 | atl1c_hash_set(hw, hash_value); |
| 411 | } |
| 412 | } |
| 413 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 414 | static void __atl1c_vlan_mode(netdev_features_t features, u32 *mac_ctrl_data) |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 415 | { |
| 416 | if (features & NETIF_F_HW_VLAN_RX) { |
| 417 | /* enable VLAN tag insert/strip */ |
| 418 | *mac_ctrl_data |= MAC_CTRL_RMV_VLAN; |
| 419 | } else { |
| 420 | /* disable VLAN tag insert/strip */ |
| 421 | *mac_ctrl_data &= ~MAC_CTRL_RMV_VLAN; |
| 422 | } |
| 423 | } |
| 424 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 425 | static void atl1c_vlan_mode(struct net_device *netdev, |
| 426 | netdev_features_t features) |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 427 | { |
| 428 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 429 | struct pci_dev *pdev = adapter->pdev; |
| 430 | u32 mac_ctrl_data = 0; |
| 431 | |
| 432 | if (netif_msg_pktdata(adapter)) |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 433 | dev_dbg(&pdev->dev, "atl1c_vlan_mode\n"); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 434 | |
| 435 | atl1c_irq_disable(adapter); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 436 | AT_READ_REG(&adapter->hw, REG_MAC_CTRL, &mac_ctrl_data); |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 437 | __atl1c_vlan_mode(features, &mac_ctrl_data); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 438 | AT_WRITE_REG(&adapter->hw, REG_MAC_CTRL, mac_ctrl_data); |
| 439 | atl1c_irq_enable(adapter); |
| 440 | } |
| 441 | |
| 442 | static void atl1c_restore_vlan(struct atl1c_adapter *adapter) |
| 443 | { |
| 444 | struct pci_dev *pdev = adapter->pdev; |
| 445 | |
| 446 | if (netif_msg_pktdata(adapter)) |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 447 | dev_dbg(&pdev->dev, "atl1c_restore_vlan\n"); |
| 448 | atl1c_vlan_mode(adapter->netdev, adapter->netdev->features); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 449 | } |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 450 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 451 | /* |
| 452 | * atl1c_set_mac - Change the Ethernet Address of the NIC |
| 453 | * @netdev: network interface device structure |
| 454 | * @p: pointer to an address structure |
| 455 | * |
| 456 | * Returns 0 on success, negative on failure |
| 457 | */ |
| 458 | static int atl1c_set_mac_addr(struct net_device *netdev, void *p) |
| 459 | { |
| 460 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 461 | struct sockaddr *addr = p; |
| 462 | |
| 463 | if (!is_valid_ether_addr(addr->sa_data)) |
| 464 | return -EADDRNOTAVAIL; |
| 465 | |
| 466 | if (netif_running(netdev)) |
| 467 | return -EBUSY; |
| 468 | |
| 469 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
| 470 | memcpy(adapter->hw.mac_addr, addr->sa_data, netdev->addr_len); |
| 471 | |
| 472 | atl1c_hw_set_mac_addr(&adapter->hw); |
| 473 | |
| 474 | return 0; |
| 475 | } |
| 476 | |
| 477 | static void atl1c_set_rxbufsize(struct atl1c_adapter *adapter, |
| 478 | struct net_device *dev) |
| 479 | { |
| 480 | int mtu = dev->mtu; |
| 481 | |
| 482 | adapter->rx_buffer_len = mtu > AT_RX_BUF_SIZE ? |
| 483 | roundup(mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN, 8) : AT_RX_BUF_SIZE; |
| 484 | } |
Michał Mirosław | 782d640 | 2011-04-07 07:32:18 +0000 | [diff] [blame] | 485 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 486 | static netdev_features_t atl1c_fix_features(struct net_device *netdev, |
| 487 | netdev_features_t features) |
Michał Mirosław | 782d640 | 2011-04-07 07:32:18 +0000 | [diff] [blame] | 488 | { |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 489 | /* |
| 490 | * Since there is no support for separate rx/tx vlan accel |
| 491 | * enable/disable make sure tx flag is always in same state as rx. |
| 492 | */ |
| 493 | if (features & NETIF_F_HW_VLAN_RX) |
| 494 | features |= NETIF_F_HW_VLAN_TX; |
| 495 | else |
| 496 | features &= ~NETIF_F_HW_VLAN_TX; |
| 497 | |
Michał Mirosław | 782d640 | 2011-04-07 07:32:18 +0000 | [diff] [blame] | 498 | if (netdev->mtu > MAX_TSO_FRAME_SIZE) |
| 499 | features &= ~(NETIF_F_TSO | NETIF_F_TSO6); |
| 500 | |
| 501 | return features; |
| 502 | } |
| 503 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 504 | static int atl1c_set_features(struct net_device *netdev, |
| 505 | netdev_features_t features) |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 506 | { |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 507 | netdev_features_t changed = netdev->features ^ features; |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 508 | |
| 509 | if (changed & NETIF_F_HW_VLAN_RX) |
| 510 | atl1c_vlan_mode(netdev, features); |
| 511 | |
| 512 | return 0; |
| 513 | } |
| 514 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 515 | /* |
| 516 | * atl1c_change_mtu - Change the Maximum Transfer Unit |
| 517 | * @netdev: network interface device structure |
| 518 | * @new_mtu: new value for maximum frame size |
| 519 | * |
| 520 | * Returns 0 on success, negative on failure |
| 521 | */ |
| 522 | static int atl1c_change_mtu(struct net_device *netdev, int new_mtu) |
| 523 | { |
| 524 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 525 | int old_mtu = netdev->mtu; |
| 526 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; |
| 527 | |
| 528 | if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) || |
| 529 | (max_frame > MAX_JUMBO_FRAME_SIZE)) { |
| 530 | if (netif_msg_link(adapter)) |
| 531 | dev_warn(&adapter->pdev->dev, "invalid MTU setting\n"); |
| 532 | return -EINVAL; |
| 533 | } |
| 534 | /* set MTU */ |
| 535 | if (old_mtu != new_mtu && netif_running(netdev)) { |
| 536 | while (test_and_set_bit(__AT_RESETTING, &adapter->flags)) |
| 537 | msleep(1); |
| 538 | netdev->mtu = new_mtu; |
| 539 | adapter->hw.max_frame_size = new_mtu; |
| 540 | atl1c_set_rxbufsize(adapter, netdev); |
| 541 | atl1c_down(adapter); |
Michał Mirosław | 782d640 | 2011-04-07 07:32:18 +0000 | [diff] [blame] | 542 | netdev_update_features(netdev); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 543 | atl1c_up(adapter); |
| 544 | clear_bit(__AT_RESETTING, &adapter->flags); |
| 545 | if (adapter->hw.ctrl_flags & ATL1C_FPGA_VERSION) { |
| 546 | u32 phy_data; |
| 547 | |
| 548 | AT_READ_REG(&adapter->hw, 0x1414, &phy_data); |
| 549 | phy_data |= 0x10000000; |
| 550 | AT_WRITE_REG(&adapter->hw, 0x1414, phy_data); |
| 551 | } |
| 552 | |
| 553 | } |
| 554 | return 0; |
| 555 | } |
| 556 | |
| 557 | /* |
| 558 | * caller should hold mdio_lock |
| 559 | */ |
| 560 | static int atl1c_mdio_read(struct net_device *netdev, int phy_id, int reg_num) |
| 561 | { |
| 562 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 563 | u16 result; |
| 564 | |
| 565 | atl1c_read_phy_reg(&adapter->hw, reg_num & MDIO_REG_ADDR_MASK, &result); |
| 566 | return result; |
| 567 | } |
| 568 | |
| 569 | static void atl1c_mdio_write(struct net_device *netdev, int phy_id, |
| 570 | int reg_num, int val) |
| 571 | { |
| 572 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 573 | |
| 574 | atl1c_write_phy_reg(&adapter->hw, reg_num & MDIO_REG_ADDR_MASK, val); |
| 575 | } |
| 576 | |
| 577 | /* |
| 578 | * atl1c_mii_ioctl - |
| 579 | * @netdev: |
| 580 | * @ifreq: |
| 581 | * @cmd: |
| 582 | */ |
| 583 | static int atl1c_mii_ioctl(struct net_device *netdev, |
| 584 | struct ifreq *ifr, int cmd) |
| 585 | { |
| 586 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 587 | struct pci_dev *pdev = adapter->pdev; |
| 588 | struct mii_ioctl_data *data = if_mii(ifr); |
| 589 | unsigned long flags; |
| 590 | int retval = 0; |
| 591 | |
| 592 | if (!netif_running(netdev)) |
| 593 | return -EINVAL; |
| 594 | |
| 595 | spin_lock_irqsave(&adapter->mdio_lock, flags); |
| 596 | switch (cmd) { |
| 597 | case SIOCGMIIPHY: |
| 598 | data->phy_id = 0; |
| 599 | break; |
| 600 | |
| 601 | case SIOCGMIIREG: |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 602 | if (atl1c_read_phy_reg(&adapter->hw, data->reg_num & 0x1F, |
| 603 | &data->val_out)) { |
| 604 | retval = -EIO; |
| 605 | goto out; |
| 606 | } |
| 607 | break; |
| 608 | |
| 609 | case SIOCSMIIREG: |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 610 | if (data->reg_num & ~(0x1F)) { |
| 611 | retval = -EFAULT; |
| 612 | goto out; |
| 613 | } |
| 614 | |
| 615 | dev_dbg(&pdev->dev, "<atl1c_mii_ioctl> write %x %x", |
| 616 | data->reg_num, data->val_in); |
| 617 | if (atl1c_write_phy_reg(&adapter->hw, |
| 618 | data->reg_num, data->val_in)) { |
| 619 | retval = -EIO; |
| 620 | goto out; |
| 621 | } |
| 622 | break; |
| 623 | |
| 624 | default: |
| 625 | retval = -EOPNOTSUPP; |
| 626 | break; |
| 627 | } |
| 628 | out: |
| 629 | spin_unlock_irqrestore(&adapter->mdio_lock, flags); |
| 630 | return retval; |
| 631 | } |
| 632 | |
| 633 | /* |
| 634 | * atl1c_ioctl - |
| 635 | * @netdev: |
| 636 | * @ifreq: |
| 637 | * @cmd: |
| 638 | */ |
| 639 | static int atl1c_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) |
| 640 | { |
| 641 | switch (cmd) { |
| 642 | case SIOCGMIIPHY: |
| 643 | case SIOCGMIIREG: |
| 644 | case SIOCSMIIREG: |
| 645 | return atl1c_mii_ioctl(netdev, ifr, cmd); |
| 646 | default: |
| 647 | return -EOPNOTSUPP; |
| 648 | } |
| 649 | } |
| 650 | |
| 651 | /* |
| 652 | * atl1c_alloc_queues - Allocate memory for all rings |
| 653 | * @adapter: board private structure to initialize |
| 654 | * |
| 655 | */ |
| 656 | static int __devinit atl1c_alloc_queues(struct atl1c_adapter *adapter) |
| 657 | { |
| 658 | return 0; |
| 659 | } |
| 660 | |
| 661 | static void atl1c_set_mac_type(struct atl1c_hw *hw) |
| 662 | { |
| 663 | switch (hw->device_id) { |
| 664 | case PCI_DEVICE_ID_ATTANSIC_L2C: |
| 665 | hw->nic_type = athr_l2c; |
| 666 | break; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 667 | case PCI_DEVICE_ID_ATTANSIC_L1C: |
| 668 | hw->nic_type = athr_l1c; |
| 669 | break; |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 670 | case PCI_DEVICE_ID_ATHEROS_L2C_B: |
| 671 | hw->nic_type = athr_l2c_b; |
| 672 | break; |
| 673 | case PCI_DEVICE_ID_ATHEROS_L2C_B2: |
| 674 | hw->nic_type = athr_l2c_b2; |
| 675 | break; |
| 676 | case PCI_DEVICE_ID_ATHEROS_L1D: |
| 677 | hw->nic_type = athr_l1d; |
| 678 | break; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 679 | case PCI_DEVICE_ID_ATHEROS_L1D_2_0: |
| 680 | hw->nic_type = athr_l1d_2; |
| 681 | break; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 682 | default: |
| 683 | break; |
| 684 | } |
| 685 | } |
| 686 | |
| 687 | static int atl1c_setup_mac_funcs(struct atl1c_hw *hw) |
| 688 | { |
| 689 | u32 phy_status_data; |
| 690 | u32 link_ctrl_data; |
| 691 | |
| 692 | atl1c_set_mac_type(hw); |
| 693 | AT_READ_REG(hw, REG_PHY_STATUS, &phy_status_data); |
| 694 | AT_READ_REG(hw, REG_LINK_CTRL, &link_ctrl_data); |
| 695 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 696 | hw->ctrl_flags = ATL1C_INTR_MODRT_ENABLE | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 697 | ATL1C_TXQ_MODE_ENHANCE; |
| 698 | if (link_ctrl_data & LINK_CTRL_L0S_EN) |
| 699 | hw->ctrl_flags |= ATL1C_ASPM_L0S_SUPPORT; |
| 700 | if (link_ctrl_data & LINK_CTRL_L1_EN) |
| 701 | hw->ctrl_flags |= ATL1C_ASPM_L1_SUPPORT; |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 702 | if (link_ctrl_data & LINK_CTRL_EXT_SYNC) |
| 703 | hw->ctrl_flags |= ATL1C_LINK_EXT_SYNC; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 704 | hw->ctrl_flags |= ATL1C_ASPM_CTRL_MON; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 705 | |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 706 | if (hw->nic_type == athr_l1c || |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 707 | hw->nic_type == athr_l1d || |
| 708 | hw->nic_type == athr_l1d_2) |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 709 | hw->link_cap_flags |= ATL1C_LINK_CAP_1000M; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 710 | return 0; |
| 711 | } |
| 712 | /* |
| 713 | * atl1c_sw_init - Initialize general software structures (struct atl1c_adapter) |
| 714 | * @adapter: board private structure to initialize |
| 715 | * |
| 716 | * atl1c_sw_init initializes the Adapter private data structure. |
| 717 | * Fields are initialized based on PCI device information and |
| 718 | * OS network device settings (MTU size). |
| 719 | */ |
| 720 | static int __devinit atl1c_sw_init(struct atl1c_adapter *adapter) |
| 721 | { |
| 722 | struct atl1c_hw *hw = &adapter->hw; |
| 723 | struct pci_dev *pdev = adapter->pdev; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 724 | u32 revision; |
| 725 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 726 | |
| 727 | adapter->wol = 0; |
Rafael J. Wysocki | 762e302 | 2010-12-22 03:07:52 +0000 | [diff] [blame] | 728 | device_set_wakeup_enable(&pdev->dev, false); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 729 | adapter->link_speed = SPEED_0; |
| 730 | adapter->link_duplex = FULL_DUPLEX; |
| 731 | adapter->num_rx_queues = AT_DEF_RECEIVE_QUEUE; |
| 732 | adapter->tpd_ring[0].count = 1024; |
| 733 | adapter->rfd_ring[0].count = 512; |
| 734 | |
| 735 | hw->vendor_id = pdev->vendor; |
| 736 | hw->device_id = pdev->device; |
| 737 | hw->subsystem_vendor_id = pdev->subsystem_vendor; |
| 738 | hw->subsystem_id = pdev->subsystem_device; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 739 | AT_READ_REG(hw, PCI_CLASS_REVISION, &revision); |
| 740 | hw->revision_id = revision & 0xFF; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 741 | /* before link up, we assume hibernate is true */ |
| 742 | hw->hibernate = true; |
| 743 | hw->media_type = MEDIA_TYPE_AUTO_SENSOR; |
| 744 | if (atl1c_setup_mac_funcs(hw) != 0) { |
| 745 | dev_err(&pdev->dev, "set mac function pointers failed\n"); |
| 746 | return -1; |
| 747 | } |
| 748 | hw->intr_mask = IMR_NORMAL_MASK; |
| 749 | hw->phy_configured = false; |
| 750 | hw->preamble_len = 7; |
| 751 | hw->max_frame_size = adapter->netdev->mtu; |
| 752 | if (adapter->num_rx_queues < 2) { |
| 753 | hw->rss_type = atl1c_rss_disable; |
| 754 | hw->rss_mode = atl1c_rss_mode_disable; |
| 755 | } else { |
| 756 | hw->rss_type = atl1c_rss_ipv4; |
| 757 | hw->rss_mode = atl1c_rss_mul_que_mul_int; |
| 758 | hw->rss_hash_bits = 16; |
| 759 | } |
| 760 | hw->autoneg_advertised = ADVERTISED_Autoneg; |
| 761 | hw->indirect_tab = 0xE4E4E4E4; |
| 762 | hw->base_cpu = 0; |
| 763 | |
| 764 | hw->ict = 50000; /* 100ms */ |
| 765 | hw->smb_timer = 200000; /* 400ms */ |
| 766 | hw->cmb_tpd = 4; |
| 767 | hw->cmb_tx_timer = 1; /* 2 us */ |
| 768 | hw->rx_imt = 200; |
| 769 | hw->tx_imt = 1000; |
| 770 | |
| 771 | hw->tpd_burst = 5; |
| 772 | hw->rfd_burst = 8; |
| 773 | hw->dma_order = atl1c_dma_ord_out; |
| 774 | hw->dmar_block = atl1c_dma_req_1024; |
| 775 | hw->dmaw_block = atl1c_dma_req_1024; |
| 776 | hw->dmar_dly_cnt = 15; |
| 777 | hw->dmaw_dly_cnt = 4; |
| 778 | |
| 779 | if (atl1c_alloc_queues(adapter)) { |
| 780 | dev_err(&pdev->dev, "Unable to allocate memory for queues\n"); |
| 781 | return -ENOMEM; |
| 782 | } |
| 783 | /* TODO */ |
| 784 | atl1c_set_rxbufsize(adapter, adapter->netdev); |
| 785 | atomic_set(&adapter->irq_sem, 1); |
| 786 | spin_lock_init(&adapter->mdio_lock); |
| 787 | spin_lock_init(&adapter->tx_lock); |
| 788 | set_bit(__AT_DOWN, &adapter->flags); |
| 789 | |
| 790 | return 0; |
| 791 | } |
| 792 | |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 793 | static inline void atl1c_clean_buffer(struct pci_dev *pdev, |
| 794 | struct atl1c_buffer *buffer_info, int in_irq) |
| 795 | { |
Jie Yang | 4b45e34 | 2009-12-06 22:56:59 +0000 | [diff] [blame] | 796 | u16 pci_driection; |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 797 | if (buffer_info->flags & ATL1C_BUFFER_FREE) |
| 798 | return; |
| 799 | if (buffer_info->dma) { |
Jie Yang | 4b45e34 | 2009-12-06 22:56:59 +0000 | [diff] [blame] | 800 | if (buffer_info->flags & ATL1C_PCIMAP_FROMDEVICE) |
| 801 | pci_driection = PCI_DMA_FROMDEVICE; |
| 802 | else |
| 803 | pci_driection = PCI_DMA_TODEVICE; |
| 804 | |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 805 | if (buffer_info->flags & ATL1C_PCIMAP_SINGLE) |
| 806 | pci_unmap_single(pdev, buffer_info->dma, |
Jie Yang | 4b45e34 | 2009-12-06 22:56:59 +0000 | [diff] [blame] | 807 | buffer_info->length, pci_driection); |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 808 | else if (buffer_info->flags & ATL1C_PCIMAP_PAGE) |
| 809 | pci_unmap_page(pdev, buffer_info->dma, |
Jie Yang | 4b45e34 | 2009-12-06 22:56:59 +0000 | [diff] [blame] | 810 | buffer_info->length, pci_driection); |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 811 | } |
| 812 | if (buffer_info->skb) { |
| 813 | if (in_irq) |
| 814 | dev_kfree_skb_irq(buffer_info->skb); |
| 815 | else |
| 816 | dev_kfree_skb(buffer_info->skb); |
| 817 | } |
| 818 | buffer_info->dma = 0; |
| 819 | buffer_info->skb = NULL; |
| 820 | ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_FREE); |
| 821 | } |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 822 | /* |
| 823 | * atl1c_clean_tx_ring - Free Tx-skb |
| 824 | * @adapter: board private structure |
| 825 | */ |
| 826 | static void atl1c_clean_tx_ring(struct atl1c_adapter *adapter, |
| 827 | enum atl1c_trans_queue type) |
| 828 | { |
| 829 | struct atl1c_tpd_ring *tpd_ring = &adapter->tpd_ring[type]; |
| 830 | struct atl1c_buffer *buffer_info; |
| 831 | struct pci_dev *pdev = adapter->pdev; |
| 832 | u16 index, ring_count; |
| 833 | |
| 834 | ring_count = tpd_ring->count; |
| 835 | for (index = 0; index < ring_count; index++) { |
| 836 | buffer_info = &tpd_ring->buffer_info[index]; |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 837 | atl1c_clean_buffer(pdev, buffer_info, 0); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 838 | } |
| 839 | |
| 840 | /* Zero out Tx-buffers */ |
| 841 | memset(tpd_ring->desc, 0, sizeof(struct atl1c_tpd_desc) * |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 842 | ring_count); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 843 | atomic_set(&tpd_ring->next_to_clean, 0); |
| 844 | tpd_ring->next_to_use = 0; |
| 845 | } |
| 846 | |
| 847 | /* |
| 848 | * atl1c_clean_rx_ring - Free rx-reservation skbs |
| 849 | * @adapter: board private structure |
| 850 | */ |
| 851 | static void atl1c_clean_rx_ring(struct atl1c_adapter *adapter) |
| 852 | { |
| 853 | struct atl1c_rfd_ring *rfd_ring = adapter->rfd_ring; |
| 854 | struct atl1c_rrd_ring *rrd_ring = adapter->rrd_ring; |
| 855 | struct atl1c_buffer *buffer_info; |
| 856 | struct pci_dev *pdev = adapter->pdev; |
| 857 | int i, j; |
| 858 | |
| 859 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 860 | for (j = 0; j < rfd_ring[i].count; j++) { |
| 861 | buffer_info = &rfd_ring[i].buffer_info[j]; |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 862 | atl1c_clean_buffer(pdev, buffer_info, 0); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 863 | } |
| 864 | /* zero out the descriptor ring */ |
| 865 | memset(rfd_ring[i].desc, 0, rfd_ring[i].size); |
| 866 | rfd_ring[i].next_to_clean = 0; |
| 867 | rfd_ring[i].next_to_use = 0; |
| 868 | rrd_ring[i].next_to_use = 0; |
| 869 | rrd_ring[i].next_to_clean = 0; |
| 870 | } |
| 871 | } |
| 872 | |
| 873 | /* |
| 874 | * Read / Write Ptr Initialize: |
| 875 | */ |
| 876 | static void atl1c_init_ring_ptrs(struct atl1c_adapter *adapter) |
| 877 | { |
| 878 | struct atl1c_tpd_ring *tpd_ring = adapter->tpd_ring; |
| 879 | struct atl1c_rfd_ring *rfd_ring = adapter->rfd_ring; |
| 880 | struct atl1c_rrd_ring *rrd_ring = adapter->rrd_ring; |
| 881 | struct atl1c_buffer *buffer_info; |
| 882 | int i, j; |
| 883 | |
| 884 | for (i = 0; i < AT_MAX_TRANSMIT_QUEUE; i++) { |
| 885 | tpd_ring[i].next_to_use = 0; |
| 886 | atomic_set(&tpd_ring[i].next_to_clean, 0); |
| 887 | buffer_info = tpd_ring[i].buffer_info; |
| 888 | for (j = 0; j < tpd_ring->count; j++) |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 889 | ATL1C_SET_BUFFER_STATE(&buffer_info[i], |
| 890 | ATL1C_BUFFER_FREE); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 891 | } |
| 892 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 893 | rfd_ring[i].next_to_use = 0; |
| 894 | rfd_ring[i].next_to_clean = 0; |
| 895 | rrd_ring[i].next_to_use = 0; |
| 896 | rrd_ring[i].next_to_clean = 0; |
| 897 | for (j = 0; j < rfd_ring[i].count; j++) { |
| 898 | buffer_info = &rfd_ring[i].buffer_info[j]; |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 899 | ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_FREE); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 900 | } |
| 901 | } |
| 902 | } |
| 903 | |
| 904 | /* |
| 905 | * atl1c_free_ring_resources - Free Tx / RX descriptor Resources |
| 906 | * @adapter: board private structure |
| 907 | * |
| 908 | * Free all transmit software resources |
| 909 | */ |
| 910 | static void atl1c_free_ring_resources(struct atl1c_adapter *adapter) |
| 911 | { |
| 912 | struct pci_dev *pdev = adapter->pdev; |
| 913 | |
| 914 | pci_free_consistent(pdev, adapter->ring_header.size, |
| 915 | adapter->ring_header.desc, |
| 916 | adapter->ring_header.dma); |
| 917 | adapter->ring_header.desc = NULL; |
| 918 | |
| 919 | /* Note: just free tdp_ring.buffer_info, |
| 920 | * it contain rfd_ring.buffer_info, do not double free */ |
| 921 | if (adapter->tpd_ring[0].buffer_info) { |
| 922 | kfree(adapter->tpd_ring[0].buffer_info); |
| 923 | adapter->tpd_ring[0].buffer_info = NULL; |
| 924 | } |
| 925 | } |
| 926 | |
| 927 | /* |
| 928 | * atl1c_setup_mem_resources - allocate Tx / RX descriptor resources |
| 929 | * @adapter: board private structure |
| 930 | * |
| 931 | * Return 0 on success, negative on failure |
| 932 | */ |
| 933 | static int atl1c_setup_ring_resources(struct atl1c_adapter *adapter) |
| 934 | { |
| 935 | struct pci_dev *pdev = adapter->pdev; |
| 936 | struct atl1c_tpd_ring *tpd_ring = adapter->tpd_ring; |
| 937 | struct atl1c_rfd_ring *rfd_ring = adapter->rfd_ring; |
| 938 | struct atl1c_rrd_ring *rrd_ring = adapter->rrd_ring; |
| 939 | struct atl1c_ring_header *ring_header = &adapter->ring_header; |
| 940 | int num_rx_queues = adapter->num_rx_queues; |
| 941 | int size; |
| 942 | int i; |
| 943 | int count = 0; |
| 944 | int rx_desc_count = 0; |
| 945 | u32 offset = 0; |
| 946 | |
| 947 | rrd_ring[0].count = rfd_ring[0].count; |
| 948 | for (i = 1; i < AT_MAX_TRANSMIT_QUEUE; i++) |
| 949 | tpd_ring[i].count = tpd_ring[0].count; |
| 950 | |
| 951 | for (i = 1; i < adapter->num_rx_queues; i++) |
| 952 | rfd_ring[i].count = rrd_ring[i].count = rfd_ring[0].count; |
| 953 | |
| 954 | /* 2 tpd queue, one high priority queue, |
| 955 | * another normal priority queue */ |
| 956 | size = sizeof(struct atl1c_buffer) * (tpd_ring->count * 2 + |
| 957 | rfd_ring->count * num_rx_queues); |
| 958 | tpd_ring->buffer_info = kzalloc(size, GFP_KERNEL); |
| 959 | if (unlikely(!tpd_ring->buffer_info)) { |
| 960 | dev_err(&pdev->dev, "kzalloc failed, size = %d\n", |
| 961 | size); |
| 962 | goto err_nomem; |
| 963 | } |
| 964 | for (i = 0; i < AT_MAX_TRANSMIT_QUEUE; i++) { |
| 965 | tpd_ring[i].buffer_info = |
| 966 | (struct atl1c_buffer *) (tpd_ring->buffer_info + count); |
| 967 | count += tpd_ring[i].count; |
| 968 | } |
| 969 | |
| 970 | for (i = 0; i < num_rx_queues; i++) { |
| 971 | rfd_ring[i].buffer_info = |
| 972 | (struct atl1c_buffer *) (tpd_ring->buffer_info + count); |
| 973 | count += rfd_ring[i].count; |
| 974 | rx_desc_count += rfd_ring[i].count; |
| 975 | } |
| 976 | /* |
| 977 | * real ring DMA buffer |
| 978 | * each ring/block may need up to 8 bytes for alignment, hence the |
| 979 | * additional bytes tacked onto the end. |
| 980 | */ |
| 981 | ring_header->size = size = |
| 982 | sizeof(struct atl1c_tpd_desc) * tpd_ring->count * 2 + |
| 983 | sizeof(struct atl1c_rx_free_desc) * rx_desc_count + |
| 984 | sizeof(struct atl1c_recv_ret_status) * rx_desc_count + |
| 985 | sizeof(struct atl1c_hw_stats) + |
| 986 | 8 * 4 + 8 * 2 * num_rx_queues; |
| 987 | |
| 988 | ring_header->desc = pci_alloc_consistent(pdev, ring_header->size, |
| 989 | &ring_header->dma); |
| 990 | if (unlikely(!ring_header->desc)) { |
| 991 | dev_err(&pdev->dev, "pci_alloc_consistend failed\n"); |
| 992 | goto err_nomem; |
| 993 | } |
| 994 | memset(ring_header->desc, 0, ring_header->size); |
| 995 | /* init TPD ring */ |
| 996 | |
| 997 | tpd_ring[0].dma = roundup(ring_header->dma, 8); |
| 998 | offset = tpd_ring[0].dma - ring_header->dma; |
| 999 | for (i = 0; i < AT_MAX_TRANSMIT_QUEUE; i++) { |
| 1000 | tpd_ring[i].dma = ring_header->dma + offset; |
| 1001 | tpd_ring[i].desc = (u8 *) ring_header->desc + offset; |
| 1002 | tpd_ring[i].size = |
| 1003 | sizeof(struct atl1c_tpd_desc) * tpd_ring[i].count; |
| 1004 | offset += roundup(tpd_ring[i].size, 8); |
| 1005 | } |
| 1006 | /* init RFD ring */ |
| 1007 | for (i = 0; i < num_rx_queues; i++) { |
| 1008 | rfd_ring[i].dma = ring_header->dma + offset; |
| 1009 | rfd_ring[i].desc = (u8 *) ring_header->desc + offset; |
| 1010 | rfd_ring[i].size = sizeof(struct atl1c_rx_free_desc) * |
| 1011 | rfd_ring[i].count; |
| 1012 | offset += roundup(rfd_ring[i].size, 8); |
| 1013 | } |
| 1014 | |
| 1015 | /* init RRD ring */ |
| 1016 | for (i = 0; i < num_rx_queues; i++) { |
| 1017 | rrd_ring[i].dma = ring_header->dma + offset; |
| 1018 | rrd_ring[i].desc = (u8 *) ring_header->desc + offset; |
| 1019 | rrd_ring[i].size = sizeof(struct atl1c_recv_ret_status) * |
| 1020 | rrd_ring[i].count; |
| 1021 | offset += roundup(rrd_ring[i].size, 8); |
| 1022 | } |
| 1023 | |
| 1024 | adapter->smb.dma = ring_header->dma + offset; |
| 1025 | adapter->smb.smb = (u8 *)ring_header->desc + offset; |
| 1026 | return 0; |
| 1027 | |
| 1028 | err_nomem: |
| 1029 | kfree(tpd_ring->buffer_info); |
| 1030 | return -ENOMEM; |
| 1031 | } |
| 1032 | |
| 1033 | static void atl1c_configure_des_ring(struct atl1c_adapter *adapter) |
| 1034 | { |
| 1035 | struct atl1c_hw *hw = &adapter->hw; |
| 1036 | struct atl1c_rfd_ring *rfd_ring = (struct atl1c_rfd_ring *) |
| 1037 | adapter->rfd_ring; |
| 1038 | struct atl1c_rrd_ring *rrd_ring = (struct atl1c_rrd_ring *) |
| 1039 | adapter->rrd_ring; |
| 1040 | struct atl1c_tpd_ring *tpd_ring = (struct atl1c_tpd_ring *) |
| 1041 | adapter->tpd_ring; |
| 1042 | struct atl1c_cmb *cmb = (struct atl1c_cmb *) &adapter->cmb; |
| 1043 | struct atl1c_smb *smb = (struct atl1c_smb *) &adapter->smb; |
| 1044 | int i; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1045 | u32 data; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1046 | |
| 1047 | /* TPD */ |
| 1048 | AT_WRITE_REG(hw, REG_TX_BASE_ADDR_HI, |
| 1049 | (u32)((tpd_ring[atl1c_trans_normal].dma & |
| 1050 | AT_DMA_HI_ADDR_MASK) >> 32)); |
| 1051 | /* just enable normal priority TX queue */ |
| 1052 | AT_WRITE_REG(hw, REG_NTPD_HEAD_ADDR_LO, |
| 1053 | (u32)(tpd_ring[atl1c_trans_normal].dma & |
| 1054 | AT_DMA_LO_ADDR_MASK)); |
| 1055 | AT_WRITE_REG(hw, REG_HTPD_HEAD_ADDR_LO, |
| 1056 | (u32)(tpd_ring[atl1c_trans_high].dma & |
| 1057 | AT_DMA_LO_ADDR_MASK)); |
| 1058 | AT_WRITE_REG(hw, REG_TPD_RING_SIZE, |
| 1059 | (u32)(tpd_ring[0].count & TPD_RING_SIZE_MASK)); |
| 1060 | |
| 1061 | |
| 1062 | /* RFD */ |
| 1063 | AT_WRITE_REG(hw, REG_RX_BASE_ADDR_HI, |
| 1064 | (u32)((rfd_ring[0].dma & AT_DMA_HI_ADDR_MASK) >> 32)); |
| 1065 | for (i = 0; i < adapter->num_rx_queues; i++) |
| 1066 | AT_WRITE_REG(hw, atl1c_rfd_addr_lo_regs[i], |
| 1067 | (u32)(rfd_ring[i].dma & AT_DMA_LO_ADDR_MASK)); |
| 1068 | |
| 1069 | AT_WRITE_REG(hw, REG_RFD_RING_SIZE, |
| 1070 | rfd_ring[0].count & RFD_RING_SIZE_MASK); |
| 1071 | AT_WRITE_REG(hw, REG_RX_BUF_SIZE, |
| 1072 | adapter->rx_buffer_len & RX_BUF_SIZE_MASK); |
| 1073 | |
| 1074 | /* RRD */ |
| 1075 | for (i = 0; i < adapter->num_rx_queues; i++) |
| 1076 | AT_WRITE_REG(hw, atl1c_rrd_addr_lo_regs[i], |
| 1077 | (u32)(rrd_ring[i].dma & AT_DMA_LO_ADDR_MASK)); |
| 1078 | AT_WRITE_REG(hw, REG_RRD_RING_SIZE, |
| 1079 | (rrd_ring[0].count & RRD_RING_SIZE_MASK)); |
| 1080 | |
| 1081 | /* CMB */ |
| 1082 | AT_WRITE_REG(hw, REG_CMB_BASE_ADDR_LO, cmb->dma & AT_DMA_LO_ADDR_MASK); |
| 1083 | |
| 1084 | /* SMB */ |
| 1085 | AT_WRITE_REG(hw, REG_SMB_BASE_ADDR_HI, |
| 1086 | (u32)((smb->dma & AT_DMA_HI_ADDR_MASK) >> 32)); |
| 1087 | AT_WRITE_REG(hw, REG_SMB_BASE_ADDR_LO, |
| 1088 | (u32)(smb->dma & AT_DMA_LO_ADDR_MASK)); |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1089 | if (hw->nic_type == athr_l2c_b) { |
| 1090 | AT_WRITE_REG(hw, REG_SRAM_RXF_LEN, 0x02a0L); |
| 1091 | AT_WRITE_REG(hw, REG_SRAM_TXF_LEN, 0x0100L); |
| 1092 | AT_WRITE_REG(hw, REG_SRAM_RXF_ADDR, 0x029f0000L); |
| 1093 | AT_WRITE_REG(hw, REG_SRAM_RFD0_INFO, 0x02bf02a0L); |
| 1094 | AT_WRITE_REG(hw, REG_SRAM_TXF_ADDR, 0x03bf02c0L); |
| 1095 | AT_WRITE_REG(hw, REG_SRAM_TRD_ADDR, 0x03df03c0L); |
| 1096 | AT_WRITE_REG(hw, REG_TXF_WATER_MARK, 0); /* TX watermark, to enter l1 state.*/ |
| 1097 | AT_WRITE_REG(hw, REG_RXD_DMA_CTRL, 0); /* RXD threshold.*/ |
| 1098 | } |
| 1099 | if (hw->nic_type == athr_l2c_b || hw->nic_type == athr_l1d_2) { |
| 1100 | /* Power Saving for L2c_B */ |
| 1101 | AT_READ_REG(hw, REG_SERDES_LOCK, &data); |
| 1102 | data |= SERDES_MAC_CLK_SLOWDOWN; |
| 1103 | data |= SERDES_PYH_CLK_SLOWDOWN; |
| 1104 | AT_WRITE_REG(hw, REG_SERDES_LOCK, data); |
| 1105 | } |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1106 | /* Load all of base address above */ |
| 1107 | AT_WRITE_REG(hw, REG_LOAD_PTR, 1); |
| 1108 | } |
| 1109 | |
| 1110 | static void atl1c_configure_tx(struct atl1c_adapter *adapter) |
| 1111 | { |
| 1112 | struct atl1c_hw *hw = &adapter->hw; |
| 1113 | u32 dev_ctrl_data; |
| 1114 | u32 max_pay_load; |
| 1115 | u16 tx_offload_thresh; |
| 1116 | u32 txq_ctrl_data; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1117 | u32 max_pay_load_data; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1118 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1119 | tx_offload_thresh = MAX_TX_OFFLOAD_THRESH; |
| 1120 | AT_WRITE_REG(hw, REG_TX_TSO_OFFLOAD_THRESH, |
| 1121 | (tx_offload_thresh >> 3) & TX_TSO_OFFLOAD_THRESH_MASK); |
| 1122 | AT_READ_REG(hw, REG_DEVICE_CTRL, &dev_ctrl_data); |
| 1123 | max_pay_load = (dev_ctrl_data >> DEVICE_CTRL_MAX_PAYLOAD_SHIFT) & |
| 1124 | DEVICE_CTRL_MAX_PAYLOAD_MASK; |
stephen hemminger | 81b504b | 2011-02-23 09:06:49 +0000 | [diff] [blame] | 1125 | hw->dmaw_block = min_t(u32, max_pay_load, hw->dmaw_block); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1126 | max_pay_load = (dev_ctrl_data >> DEVICE_CTRL_MAX_RREQ_SZ_SHIFT) & |
| 1127 | DEVICE_CTRL_MAX_RREQ_SZ_MASK; |
stephen hemminger | 81b504b | 2011-02-23 09:06:49 +0000 | [diff] [blame] | 1128 | hw->dmar_block = min_t(u32, max_pay_load, hw->dmar_block); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1129 | |
| 1130 | txq_ctrl_data = (hw->tpd_burst & TXQ_NUM_TPD_BURST_MASK) << |
| 1131 | TXQ_NUM_TPD_BURST_SHIFT; |
| 1132 | if (hw->ctrl_flags & ATL1C_TXQ_MODE_ENHANCE) |
| 1133 | txq_ctrl_data |= TXQ_CTRL_ENH_MODE; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1134 | max_pay_load_data = (atl1c_pay_load_size[hw->dmar_block] & |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1135 | TXQ_TXF_BURST_NUM_MASK) << TXQ_TXF_BURST_NUM_SHIFT; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1136 | if (hw->nic_type == athr_l2c_b || hw->nic_type == athr_l2c_b2) |
| 1137 | max_pay_load_data >>= 1; |
| 1138 | txq_ctrl_data |= max_pay_load_data; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1139 | |
| 1140 | AT_WRITE_REG(hw, REG_TXQ_CTRL, txq_ctrl_data); |
| 1141 | } |
| 1142 | |
| 1143 | static void atl1c_configure_rx(struct atl1c_adapter *adapter) |
| 1144 | { |
| 1145 | struct atl1c_hw *hw = &adapter->hw; |
| 1146 | u32 rxq_ctrl_data; |
| 1147 | |
| 1148 | rxq_ctrl_data = (hw->rfd_burst & RXQ_RFD_BURST_NUM_MASK) << |
| 1149 | RXQ_RFD_BURST_NUM_SHIFT; |
| 1150 | |
| 1151 | if (hw->ctrl_flags & ATL1C_RX_IPV6_CHKSUM) |
| 1152 | rxq_ctrl_data |= IPV6_CHKSUM_CTRL_EN; |
| 1153 | if (hw->rss_type == atl1c_rss_ipv4) |
| 1154 | rxq_ctrl_data |= RSS_HASH_IPV4; |
| 1155 | if (hw->rss_type == atl1c_rss_ipv4_tcp) |
| 1156 | rxq_ctrl_data |= RSS_HASH_IPV4_TCP; |
| 1157 | if (hw->rss_type == atl1c_rss_ipv6) |
| 1158 | rxq_ctrl_data |= RSS_HASH_IPV6; |
| 1159 | if (hw->rss_type == atl1c_rss_ipv6_tcp) |
| 1160 | rxq_ctrl_data |= RSS_HASH_IPV6_TCP; |
| 1161 | if (hw->rss_type != atl1c_rss_disable) |
| 1162 | rxq_ctrl_data |= RRS_HASH_CTRL_EN; |
| 1163 | |
| 1164 | rxq_ctrl_data |= (hw->rss_mode & RSS_MODE_MASK) << |
| 1165 | RSS_MODE_SHIFT; |
| 1166 | rxq_ctrl_data |= (hw->rss_hash_bits & RSS_HASH_BITS_MASK) << |
| 1167 | RSS_HASH_BITS_SHIFT; |
| 1168 | if (hw->ctrl_flags & ATL1C_ASPM_CTRL_MON) |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1169 | rxq_ctrl_data |= (ASPM_THRUPUT_LIMIT_1M & |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1170 | ASPM_THRUPUT_LIMIT_MASK) << ASPM_THRUPUT_LIMIT_SHIFT; |
| 1171 | |
| 1172 | AT_WRITE_REG(hw, REG_RXQ_CTRL, rxq_ctrl_data); |
| 1173 | } |
| 1174 | |
| 1175 | static void atl1c_configure_rss(struct atl1c_adapter *adapter) |
| 1176 | { |
| 1177 | struct atl1c_hw *hw = &adapter->hw; |
| 1178 | |
| 1179 | AT_WRITE_REG(hw, REG_IDT_TABLE, hw->indirect_tab); |
| 1180 | AT_WRITE_REG(hw, REG_BASE_CPU_NUMBER, hw->base_cpu); |
| 1181 | } |
| 1182 | |
| 1183 | static void atl1c_configure_dma(struct atl1c_adapter *adapter) |
| 1184 | { |
| 1185 | struct atl1c_hw *hw = &adapter->hw; |
| 1186 | u32 dma_ctrl_data; |
| 1187 | |
| 1188 | dma_ctrl_data = DMA_CTRL_DMAR_REQ_PRI; |
| 1189 | if (hw->ctrl_flags & ATL1C_CMB_ENABLE) |
| 1190 | dma_ctrl_data |= DMA_CTRL_CMB_EN; |
| 1191 | if (hw->ctrl_flags & ATL1C_SMB_ENABLE) |
| 1192 | dma_ctrl_data |= DMA_CTRL_SMB_EN; |
| 1193 | else |
| 1194 | dma_ctrl_data |= MAC_CTRL_SMB_DIS; |
| 1195 | |
| 1196 | switch (hw->dma_order) { |
| 1197 | case atl1c_dma_ord_in: |
| 1198 | dma_ctrl_data |= DMA_CTRL_DMAR_IN_ORDER; |
| 1199 | break; |
| 1200 | case atl1c_dma_ord_enh: |
| 1201 | dma_ctrl_data |= DMA_CTRL_DMAR_ENH_ORDER; |
| 1202 | break; |
| 1203 | case atl1c_dma_ord_out: |
| 1204 | dma_ctrl_data |= DMA_CTRL_DMAR_OUT_ORDER; |
| 1205 | break; |
| 1206 | default: |
| 1207 | break; |
| 1208 | } |
| 1209 | |
| 1210 | dma_ctrl_data |= (((u32)hw->dmar_block) & DMA_CTRL_DMAR_BURST_LEN_MASK) |
| 1211 | << DMA_CTRL_DMAR_BURST_LEN_SHIFT; |
| 1212 | dma_ctrl_data |= (((u32)hw->dmaw_block) & DMA_CTRL_DMAW_BURST_LEN_MASK) |
| 1213 | << DMA_CTRL_DMAW_BURST_LEN_SHIFT; |
| 1214 | dma_ctrl_data |= (((u32)hw->dmar_dly_cnt) & DMA_CTRL_DMAR_DLY_CNT_MASK) |
| 1215 | << DMA_CTRL_DMAR_DLY_CNT_SHIFT; |
| 1216 | dma_ctrl_data |= (((u32)hw->dmaw_dly_cnt) & DMA_CTRL_DMAW_DLY_CNT_MASK) |
| 1217 | << DMA_CTRL_DMAW_DLY_CNT_SHIFT; |
| 1218 | |
| 1219 | AT_WRITE_REG(hw, REG_DMA_CTRL, dma_ctrl_data); |
| 1220 | } |
| 1221 | |
| 1222 | /* |
| 1223 | * Stop the mac, transmit and receive units |
| 1224 | * hw - Struct containing variables accessed by shared code |
| 1225 | * return : 0 or idle status (if error) |
| 1226 | */ |
| 1227 | static int atl1c_stop_mac(struct atl1c_hw *hw) |
| 1228 | { |
| 1229 | u32 data; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1230 | |
| 1231 | AT_READ_REG(hw, REG_RXQ_CTRL, &data); |
| 1232 | data &= ~(RXQ1_CTRL_EN | RXQ2_CTRL_EN | |
| 1233 | RXQ3_CTRL_EN | RXQ_CTRL_EN); |
| 1234 | AT_WRITE_REG(hw, REG_RXQ_CTRL, data); |
| 1235 | |
| 1236 | AT_READ_REG(hw, REG_TXQ_CTRL, &data); |
| 1237 | data &= ~TXQ_CTRL_EN; |
| 1238 | AT_WRITE_REG(hw, REG_TWSI_CTRL, data); |
| 1239 | |
Joe Perches | c930a66 | 2009-05-31 20:44:54 +0000 | [diff] [blame] | 1240 | atl1c_wait_until_idle(hw); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1241 | |
| 1242 | AT_READ_REG(hw, REG_MAC_CTRL, &data); |
| 1243 | data &= ~(MAC_CTRL_TX_EN | MAC_CTRL_RX_EN); |
| 1244 | AT_WRITE_REG(hw, REG_MAC_CTRL, data); |
| 1245 | |
Joe Perches | c930a66 | 2009-05-31 20:44:54 +0000 | [diff] [blame] | 1246 | return (int)atl1c_wait_until_idle(hw); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1247 | } |
| 1248 | |
| 1249 | static void atl1c_enable_rx_ctrl(struct atl1c_hw *hw) |
| 1250 | { |
| 1251 | u32 data; |
| 1252 | |
| 1253 | AT_READ_REG(hw, REG_RXQ_CTRL, &data); |
| 1254 | switch (hw->adapter->num_rx_queues) { |
| 1255 | case 4: |
| 1256 | data |= (RXQ3_CTRL_EN | RXQ2_CTRL_EN | RXQ1_CTRL_EN); |
| 1257 | break; |
| 1258 | case 3: |
| 1259 | data |= (RXQ2_CTRL_EN | RXQ1_CTRL_EN); |
| 1260 | break; |
| 1261 | case 2: |
| 1262 | data |= RXQ1_CTRL_EN; |
| 1263 | break; |
| 1264 | default: |
| 1265 | break; |
| 1266 | } |
| 1267 | data |= RXQ_CTRL_EN; |
| 1268 | AT_WRITE_REG(hw, REG_RXQ_CTRL, data); |
| 1269 | } |
| 1270 | |
| 1271 | static void atl1c_enable_tx_ctrl(struct atl1c_hw *hw) |
| 1272 | { |
| 1273 | u32 data; |
| 1274 | |
| 1275 | AT_READ_REG(hw, REG_TXQ_CTRL, &data); |
| 1276 | data |= TXQ_CTRL_EN; |
| 1277 | AT_WRITE_REG(hw, REG_TXQ_CTRL, data); |
| 1278 | } |
| 1279 | |
| 1280 | /* |
| 1281 | * Reset the transmit and receive units; mask and clear all interrupts. |
| 1282 | * hw - Struct containing variables accessed by shared code |
| 1283 | * return : 0 or idle status (if error) |
| 1284 | */ |
| 1285 | static int atl1c_reset_mac(struct atl1c_hw *hw) |
| 1286 | { |
| 1287 | struct atl1c_adapter *adapter = (struct atl1c_adapter *)hw->adapter; |
| 1288 | struct pci_dev *pdev = adapter->pdev; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1289 | u32 master_ctrl_data = 0; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1290 | |
| 1291 | AT_WRITE_REG(hw, REG_IMR, 0); |
| 1292 | AT_WRITE_REG(hw, REG_ISR, ISR_DIS_INT); |
| 1293 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1294 | atl1c_stop_mac(hw); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1295 | /* |
| 1296 | * Issue Soft Reset to the MAC. This will reset the chip's |
| 1297 | * transmit, receive, DMA. It will not effect |
| 1298 | * the current PCI configuration. The global reset bit is self- |
| 1299 | * clearing, and should clear within a microsecond. |
| 1300 | */ |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1301 | AT_READ_REG(hw, REG_MASTER_CTRL, &master_ctrl_data); |
| 1302 | master_ctrl_data |= MASTER_CTRL_OOB_DIS_OFF; |
| 1303 | AT_WRITE_REGW(hw, REG_MASTER_CTRL, ((master_ctrl_data | MASTER_CTRL_SOFT_RST) |
| 1304 | & 0xFFFF)); |
| 1305 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1306 | AT_WRITE_FLUSH(hw); |
| 1307 | msleep(10); |
| 1308 | /* Wait at least 10ms for All module to be Idle */ |
Joe Perches | c930a66 | 2009-05-31 20:44:54 +0000 | [diff] [blame] | 1309 | |
| 1310 | if (atl1c_wait_until_idle(hw)) { |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1311 | dev_err(&pdev->dev, |
Joe Perches | c930a66 | 2009-05-31 20:44:54 +0000 | [diff] [blame] | 1312 | "MAC state machine can't be idle since" |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1313 | " disabled for 10ms second\n"); |
| 1314 | return -1; |
| 1315 | } |
| 1316 | return 0; |
| 1317 | } |
| 1318 | |
| 1319 | static void atl1c_disable_l0s_l1(struct atl1c_hw *hw) |
| 1320 | { |
| 1321 | u32 pm_ctrl_data; |
| 1322 | |
| 1323 | AT_READ_REG(hw, REG_PM_CTRL, &pm_ctrl_data); |
| 1324 | pm_ctrl_data &= ~(PM_CTRL_L1_ENTRY_TIMER_MASK << |
| 1325 | PM_CTRL_L1_ENTRY_TIMER_SHIFT); |
| 1326 | pm_ctrl_data &= ~PM_CTRL_CLK_SWH_L1; |
| 1327 | pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN; |
| 1328 | pm_ctrl_data &= ~PM_CTRL_ASPM_L1_EN; |
| 1329 | pm_ctrl_data &= ~PM_CTRL_MAC_ASPM_CHK; |
| 1330 | pm_ctrl_data &= ~PM_CTRL_SERDES_PD_EX_L1; |
| 1331 | |
| 1332 | pm_ctrl_data |= PM_CTRL_SERDES_BUDS_RX_L1_EN; |
| 1333 | pm_ctrl_data |= PM_CTRL_SERDES_PLL_L1_EN; |
| 1334 | pm_ctrl_data |= PM_CTRL_SERDES_L1_EN; |
| 1335 | AT_WRITE_REG(hw, REG_PM_CTRL, pm_ctrl_data); |
| 1336 | } |
| 1337 | |
| 1338 | /* |
| 1339 | * Set ASPM state. |
| 1340 | * Enable/disable L0s/L1 depend on link state. |
| 1341 | */ |
| 1342 | static void atl1c_set_aspm(struct atl1c_hw *hw, bool linkup) |
| 1343 | { |
| 1344 | u32 pm_ctrl_data; |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 1345 | u32 link_ctrl_data; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1346 | u32 link_l1_timer = 0xF; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1347 | |
| 1348 | AT_READ_REG(hw, REG_PM_CTRL, &pm_ctrl_data); |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 1349 | AT_READ_REG(hw, REG_LINK_CTRL, &link_ctrl_data); |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 1350 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1351 | pm_ctrl_data &= ~PM_CTRL_SERDES_PD_EX_L1; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1352 | pm_ctrl_data &= ~(PM_CTRL_L1_ENTRY_TIMER_MASK << |
| 1353 | PM_CTRL_L1_ENTRY_TIMER_SHIFT); |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 1354 | pm_ctrl_data &= ~(PM_CTRL_LCKDET_TIMER_MASK << |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1355 | PM_CTRL_LCKDET_TIMER_SHIFT); |
| 1356 | pm_ctrl_data |= AT_LCKDET_TIMER << PM_CTRL_LCKDET_TIMER_SHIFT; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1357 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1358 | if (hw->nic_type == athr_l2c_b || hw->nic_type == athr_l1d || |
| 1359 | hw->nic_type == athr_l2c_b2 || hw->nic_type == athr_l1d_2) { |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 1360 | link_ctrl_data &= ~LINK_CTRL_EXT_SYNC; |
| 1361 | if (!(hw->ctrl_flags & ATL1C_APS_MODE_ENABLE)) { |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1362 | if (hw->nic_type == athr_l2c_b && hw->revision_id == L2CB_V10) |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 1363 | link_ctrl_data |= LINK_CTRL_EXT_SYNC; |
| 1364 | } |
| 1365 | |
| 1366 | AT_WRITE_REG(hw, REG_LINK_CTRL, link_ctrl_data); |
| 1367 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1368 | pm_ctrl_data |= PM_CTRL_RCVR_WT_TIMER; |
| 1369 | pm_ctrl_data &= ~(PM_CTRL_PM_REQ_TIMER_MASK << |
| 1370 | PM_CTRL_PM_REQ_TIMER_SHIFT); |
| 1371 | pm_ctrl_data |= AT_ASPM_L1_TIMER << |
| 1372 | PM_CTRL_PM_REQ_TIMER_SHIFT; |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 1373 | pm_ctrl_data &= ~PM_CTRL_SA_DLY_EN; |
| 1374 | pm_ctrl_data &= ~PM_CTRL_HOTRST; |
| 1375 | pm_ctrl_data |= 1 << PM_CTRL_L1_ENTRY_TIMER_SHIFT; |
| 1376 | pm_ctrl_data |= PM_CTRL_SERDES_PD_EX_L1; |
| 1377 | } |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1378 | pm_ctrl_data |= PM_CTRL_MAC_ASPM_CHK; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1379 | if (linkup) { |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 1380 | pm_ctrl_data &= ~PM_CTRL_ASPM_L1_EN; |
| 1381 | pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN; |
| 1382 | if (hw->ctrl_flags & ATL1C_ASPM_L1_SUPPORT) |
| 1383 | pm_ctrl_data |= PM_CTRL_ASPM_L1_EN; |
| 1384 | if (hw->ctrl_flags & ATL1C_ASPM_L0S_SUPPORT) |
| 1385 | pm_ctrl_data |= PM_CTRL_ASPM_L0S_EN; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1386 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1387 | if (hw->nic_type == athr_l2c_b || hw->nic_type == athr_l1d || |
| 1388 | hw->nic_type == athr_l2c_b2 || hw->nic_type == athr_l1d_2) { |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 1389 | if (hw->nic_type == athr_l2c_b) |
| 1390 | if (!(hw->ctrl_flags & ATL1C_APS_MODE_ENABLE)) |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1391 | pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN; |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 1392 | pm_ctrl_data &= ~PM_CTRL_SERDES_L1_EN; |
| 1393 | pm_ctrl_data &= ~PM_CTRL_SERDES_PLL_L1_EN; |
| 1394 | pm_ctrl_data &= ~PM_CTRL_SERDES_BUDS_RX_L1_EN; |
| 1395 | pm_ctrl_data |= PM_CTRL_CLK_SWH_L1; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1396 | if (hw->adapter->link_speed == SPEED_100 || |
| 1397 | hw->adapter->link_speed == SPEED_1000) { |
| 1398 | pm_ctrl_data &= ~(PM_CTRL_L1_ENTRY_TIMER_MASK << |
| 1399 | PM_CTRL_L1_ENTRY_TIMER_SHIFT); |
| 1400 | if (hw->nic_type == athr_l2c_b) |
| 1401 | link_l1_timer = 7; |
| 1402 | else if (hw->nic_type == athr_l2c_b2 || |
| 1403 | hw->nic_type == athr_l1d_2) |
| 1404 | link_l1_timer = 4; |
| 1405 | pm_ctrl_data |= link_l1_timer << |
| 1406 | PM_CTRL_L1_ENTRY_TIMER_SHIFT; |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 1407 | } |
| 1408 | } else { |
| 1409 | pm_ctrl_data |= PM_CTRL_SERDES_L1_EN; |
| 1410 | pm_ctrl_data |= PM_CTRL_SERDES_PLL_L1_EN; |
| 1411 | pm_ctrl_data |= PM_CTRL_SERDES_BUDS_RX_L1_EN; |
| 1412 | pm_ctrl_data &= ~PM_CTRL_CLK_SWH_L1; |
| 1413 | pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN; |
| 1414 | pm_ctrl_data &= ~PM_CTRL_ASPM_L1_EN; |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 1415 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1416 | } |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1417 | } else { |
Jie Yang | 52fbc10 | 2009-04-27 19:42:03 +0000 | [diff] [blame] | 1418 | pm_ctrl_data &= ~PM_CTRL_SERDES_L1_EN; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1419 | pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN; |
| 1420 | pm_ctrl_data &= ~PM_CTRL_SERDES_PLL_L1_EN; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1421 | pm_ctrl_data |= PM_CTRL_CLK_SWH_L1; |
| 1422 | |
| 1423 | if (hw->ctrl_flags & ATL1C_ASPM_L1_SUPPORT) |
| 1424 | pm_ctrl_data |= PM_CTRL_ASPM_L1_EN; |
| 1425 | else |
| 1426 | pm_ctrl_data &= ~PM_CTRL_ASPM_L1_EN; |
| 1427 | } |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1428 | AT_WRITE_REG(hw, REG_PM_CTRL, pm_ctrl_data); |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1429 | |
| 1430 | return; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1431 | } |
| 1432 | |
| 1433 | static void atl1c_setup_mac_ctrl(struct atl1c_adapter *adapter) |
| 1434 | { |
| 1435 | struct atl1c_hw *hw = &adapter->hw; |
| 1436 | struct net_device *netdev = adapter->netdev; |
| 1437 | u32 mac_ctrl_data; |
| 1438 | |
| 1439 | mac_ctrl_data = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN; |
| 1440 | mac_ctrl_data |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW); |
| 1441 | |
| 1442 | if (adapter->link_duplex == FULL_DUPLEX) { |
| 1443 | hw->mac_duplex = true; |
| 1444 | mac_ctrl_data |= MAC_CTRL_DUPLX; |
| 1445 | } |
| 1446 | |
| 1447 | if (adapter->link_speed == SPEED_1000) |
| 1448 | hw->mac_speed = atl1c_mac_speed_1000; |
| 1449 | else |
| 1450 | hw->mac_speed = atl1c_mac_speed_10_100; |
| 1451 | |
| 1452 | mac_ctrl_data |= (hw->mac_speed & MAC_CTRL_SPEED_MASK) << |
| 1453 | MAC_CTRL_SPEED_SHIFT; |
| 1454 | |
| 1455 | mac_ctrl_data |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD); |
| 1456 | mac_ctrl_data |= ((hw->preamble_len & MAC_CTRL_PRMLEN_MASK) << |
| 1457 | MAC_CTRL_PRMLEN_SHIFT); |
| 1458 | |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 1459 | __atl1c_vlan_mode(netdev->features, &mac_ctrl_data); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1460 | |
| 1461 | mac_ctrl_data |= MAC_CTRL_BC_EN; |
| 1462 | if (netdev->flags & IFF_PROMISC) |
| 1463 | mac_ctrl_data |= MAC_CTRL_PROMIS_EN; |
| 1464 | if (netdev->flags & IFF_ALLMULTI) |
| 1465 | mac_ctrl_data |= MAC_CTRL_MC_ALL_EN; |
| 1466 | |
| 1467 | mac_ctrl_data |= MAC_CTRL_SINGLE_PAUSE_EN; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1468 | if (hw->nic_type == athr_l1d || hw->nic_type == athr_l2c_b2 || |
| 1469 | hw->nic_type == athr_l1d_2) { |
Luis R. Rodriguez | 496c185 | 2010-02-16 15:16:45 -0800 | [diff] [blame] | 1470 | mac_ctrl_data |= MAC_CTRL_SPEED_MODE_SW; |
| 1471 | mac_ctrl_data |= MAC_CTRL_HASH_ALG_CRC32; |
| 1472 | } |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1473 | AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl_data); |
| 1474 | } |
| 1475 | |
| 1476 | /* |
| 1477 | * atl1c_configure - Configure Transmit&Receive Unit after Reset |
| 1478 | * @adapter: board private structure |
| 1479 | * |
| 1480 | * Configure the Tx /Rx unit of the MAC after a reset. |
| 1481 | */ |
| 1482 | static int atl1c_configure(struct atl1c_adapter *adapter) |
| 1483 | { |
| 1484 | struct atl1c_hw *hw = &adapter->hw; |
| 1485 | u32 master_ctrl_data = 0; |
| 1486 | u32 intr_modrt_data; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1487 | u32 data; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1488 | |
| 1489 | /* clear interrupt status */ |
| 1490 | AT_WRITE_REG(hw, REG_ISR, 0xFFFFFFFF); |
| 1491 | /* Clear any WOL status */ |
| 1492 | AT_WRITE_REG(hw, REG_WOL_CTRL, 0); |
| 1493 | /* set Interrupt Clear Timer |
| 1494 | * HW will enable self to assert interrupt event to system after |
| 1495 | * waiting x-time for software to notify it accept interrupt. |
| 1496 | */ |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1497 | |
| 1498 | data = CLK_GATING_EN_ALL; |
| 1499 | if (hw->ctrl_flags & ATL1C_CLK_GATING_EN) { |
| 1500 | if (hw->nic_type == athr_l2c_b) |
| 1501 | data &= ~CLK_GATING_RXMAC_EN; |
| 1502 | } else |
| 1503 | data = 0; |
| 1504 | AT_WRITE_REG(hw, REG_CLK_GATING_CTRL, data); |
| 1505 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1506 | AT_WRITE_REG(hw, REG_INT_RETRIG_TIMER, |
| 1507 | hw->ict & INT_RETRIG_TIMER_MASK); |
| 1508 | |
| 1509 | atl1c_configure_des_ring(adapter); |
| 1510 | |
| 1511 | if (hw->ctrl_flags & ATL1C_INTR_MODRT_ENABLE) { |
| 1512 | intr_modrt_data = (hw->tx_imt & IRQ_MODRT_TIMER_MASK) << |
| 1513 | IRQ_MODRT_TX_TIMER_SHIFT; |
| 1514 | intr_modrt_data |= (hw->rx_imt & IRQ_MODRT_TIMER_MASK) << |
| 1515 | IRQ_MODRT_RX_TIMER_SHIFT; |
| 1516 | AT_WRITE_REG(hw, REG_IRQ_MODRT_TIMER_INIT, intr_modrt_data); |
| 1517 | master_ctrl_data |= |
| 1518 | MASTER_CTRL_TX_ITIMER_EN | MASTER_CTRL_RX_ITIMER_EN; |
| 1519 | } |
| 1520 | |
| 1521 | if (hw->ctrl_flags & ATL1C_INTR_CLEAR_ON_READ) |
| 1522 | master_ctrl_data |= MASTER_CTRL_INT_RDCLR; |
| 1523 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1524 | master_ctrl_data |= MASTER_CTRL_SA_TIMER_EN; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1525 | AT_WRITE_REG(hw, REG_MASTER_CTRL, master_ctrl_data); |
| 1526 | |
| 1527 | if (hw->ctrl_flags & ATL1C_CMB_ENABLE) { |
| 1528 | AT_WRITE_REG(hw, REG_CMB_TPD_THRESH, |
| 1529 | hw->cmb_tpd & CMB_TPD_THRESH_MASK); |
| 1530 | AT_WRITE_REG(hw, REG_CMB_TX_TIMER, |
| 1531 | hw->cmb_tx_timer & CMB_TX_TIMER_MASK); |
| 1532 | } |
| 1533 | |
| 1534 | if (hw->ctrl_flags & ATL1C_SMB_ENABLE) |
| 1535 | AT_WRITE_REG(hw, REG_SMB_STAT_TIMER, |
| 1536 | hw->smb_timer & SMB_STAT_TIMER_MASK); |
| 1537 | /* set MTU */ |
| 1538 | AT_WRITE_REG(hw, REG_MTU, hw->max_frame_size + ETH_HLEN + |
| 1539 | VLAN_HLEN + ETH_FCS_LEN); |
| 1540 | /* HDS, disable */ |
| 1541 | AT_WRITE_REG(hw, REG_HDS_CTRL, 0); |
| 1542 | |
| 1543 | atl1c_configure_tx(adapter); |
| 1544 | atl1c_configure_rx(adapter); |
| 1545 | atl1c_configure_rss(adapter); |
| 1546 | atl1c_configure_dma(adapter); |
| 1547 | |
| 1548 | return 0; |
| 1549 | } |
| 1550 | |
| 1551 | static void atl1c_update_hw_stats(struct atl1c_adapter *adapter) |
| 1552 | { |
| 1553 | u16 hw_reg_addr = 0; |
| 1554 | unsigned long *stats_item = NULL; |
| 1555 | u32 data; |
| 1556 | |
| 1557 | /* update rx status */ |
| 1558 | hw_reg_addr = REG_MAC_RX_STATUS_BIN; |
| 1559 | stats_item = &adapter->hw_stats.rx_ok; |
| 1560 | while (hw_reg_addr <= REG_MAC_RX_STATUS_END) { |
| 1561 | AT_READ_REG(&adapter->hw, hw_reg_addr, &data); |
| 1562 | *stats_item += data; |
| 1563 | stats_item++; |
| 1564 | hw_reg_addr += 4; |
| 1565 | } |
| 1566 | /* update tx status */ |
| 1567 | hw_reg_addr = REG_MAC_TX_STATUS_BIN; |
| 1568 | stats_item = &adapter->hw_stats.tx_ok; |
| 1569 | while (hw_reg_addr <= REG_MAC_TX_STATUS_END) { |
| 1570 | AT_READ_REG(&adapter->hw, hw_reg_addr, &data); |
| 1571 | *stats_item += data; |
| 1572 | stats_item++; |
| 1573 | hw_reg_addr += 4; |
| 1574 | } |
| 1575 | } |
| 1576 | |
| 1577 | /* |
| 1578 | * atl1c_get_stats - Get System Network Statistics |
| 1579 | * @netdev: network interface device structure |
| 1580 | * |
| 1581 | * Returns the address of the device statistics structure. |
| 1582 | * The statistics are actually updated from the timer callback. |
| 1583 | */ |
| 1584 | static struct net_device_stats *atl1c_get_stats(struct net_device *netdev) |
| 1585 | { |
| 1586 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 1587 | struct atl1c_hw_stats *hw_stats = &adapter->hw_stats; |
Eric Dumazet | a2c483a | 2010-08-20 02:55:16 +0000 | [diff] [blame] | 1588 | struct net_device_stats *net_stats = &netdev->stats; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1589 | |
| 1590 | atl1c_update_hw_stats(adapter); |
| 1591 | net_stats->rx_packets = hw_stats->rx_ok; |
| 1592 | net_stats->tx_packets = hw_stats->tx_ok; |
| 1593 | net_stats->rx_bytes = hw_stats->rx_byte_cnt; |
| 1594 | net_stats->tx_bytes = hw_stats->tx_byte_cnt; |
| 1595 | net_stats->multicast = hw_stats->rx_mcast; |
| 1596 | net_stats->collisions = hw_stats->tx_1_col + |
| 1597 | hw_stats->tx_2_col * 2 + |
| 1598 | hw_stats->tx_late_col + hw_stats->tx_abort_col; |
| 1599 | net_stats->rx_errors = hw_stats->rx_frag + hw_stats->rx_fcs_err + |
| 1600 | hw_stats->rx_len_err + hw_stats->rx_sz_ov + |
| 1601 | hw_stats->rx_rrd_ov + hw_stats->rx_align_err; |
| 1602 | net_stats->rx_fifo_errors = hw_stats->rx_rxf_ov; |
| 1603 | net_stats->rx_length_errors = hw_stats->rx_len_err; |
| 1604 | net_stats->rx_crc_errors = hw_stats->rx_fcs_err; |
| 1605 | net_stats->rx_frame_errors = hw_stats->rx_align_err; |
| 1606 | net_stats->rx_over_errors = hw_stats->rx_rrd_ov + hw_stats->rx_rxf_ov; |
| 1607 | |
| 1608 | net_stats->rx_missed_errors = hw_stats->rx_rrd_ov + hw_stats->rx_rxf_ov; |
| 1609 | |
| 1610 | net_stats->tx_errors = hw_stats->tx_late_col + hw_stats->tx_abort_col + |
| 1611 | hw_stats->tx_underrun + hw_stats->tx_trunc; |
| 1612 | net_stats->tx_fifo_errors = hw_stats->tx_underrun; |
| 1613 | net_stats->tx_aborted_errors = hw_stats->tx_abort_col; |
| 1614 | net_stats->tx_window_errors = hw_stats->tx_late_col; |
| 1615 | |
Eric Dumazet | a2c483a | 2010-08-20 02:55:16 +0000 | [diff] [blame] | 1616 | return net_stats; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1617 | } |
| 1618 | |
| 1619 | static inline void atl1c_clear_phy_int(struct atl1c_adapter *adapter) |
| 1620 | { |
| 1621 | u16 phy_data; |
| 1622 | |
| 1623 | spin_lock(&adapter->mdio_lock); |
| 1624 | atl1c_read_phy_reg(&adapter->hw, MII_ISR, &phy_data); |
| 1625 | spin_unlock(&adapter->mdio_lock); |
| 1626 | } |
| 1627 | |
| 1628 | static bool atl1c_clean_tx_irq(struct atl1c_adapter *adapter, |
| 1629 | enum atl1c_trans_queue type) |
| 1630 | { |
| 1631 | struct atl1c_tpd_ring *tpd_ring = (struct atl1c_tpd_ring *) |
| 1632 | &adapter->tpd_ring[type]; |
| 1633 | struct atl1c_buffer *buffer_info; |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 1634 | struct pci_dev *pdev = adapter->pdev; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1635 | u16 next_to_clean = atomic_read(&tpd_ring->next_to_clean); |
| 1636 | u16 hw_next_to_clean; |
| 1637 | u16 shift; |
| 1638 | u32 data; |
| 1639 | |
| 1640 | if (type == atl1c_trans_high) |
| 1641 | shift = MB_HTPD_CONS_IDX_SHIFT; |
| 1642 | else |
| 1643 | shift = MB_NTPD_CONS_IDX_SHIFT; |
| 1644 | |
| 1645 | AT_READ_REG(&adapter->hw, REG_MB_PRIO_CONS_IDX, &data); |
| 1646 | hw_next_to_clean = (data >> shift) & MB_PRIO_PROD_IDX_MASK; |
| 1647 | |
| 1648 | while (next_to_clean != hw_next_to_clean) { |
| 1649 | buffer_info = &tpd_ring->buffer_info[next_to_clean]; |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 1650 | atl1c_clean_buffer(pdev, buffer_info, 1); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1651 | if (++next_to_clean == tpd_ring->count) |
| 1652 | next_to_clean = 0; |
| 1653 | atomic_set(&tpd_ring->next_to_clean, next_to_clean); |
| 1654 | } |
| 1655 | |
| 1656 | if (netif_queue_stopped(adapter->netdev) && |
| 1657 | netif_carrier_ok(adapter->netdev)) { |
| 1658 | netif_wake_queue(adapter->netdev); |
| 1659 | } |
| 1660 | |
| 1661 | return true; |
| 1662 | } |
| 1663 | |
| 1664 | /* |
| 1665 | * atl1c_intr - Interrupt Handler |
| 1666 | * @irq: interrupt number |
| 1667 | * @data: pointer to a network interface device structure |
| 1668 | * @pt_regs: CPU registers structure |
| 1669 | */ |
| 1670 | static irqreturn_t atl1c_intr(int irq, void *data) |
| 1671 | { |
| 1672 | struct net_device *netdev = data; |
| 1673 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 1674 | struct pci_dev *pdev = adapter->pdev; |
| 1675 | struct atl1c_hw *hw = &adapter->hw; |
| 1676 | int max_ints = AT_MAX_INT_WORK; |
| 1677 | int handled = IRQ_NONE; |
| 1678 | u32 status; |
| 1679 | u32 reg_data; |
| 1680 | |
| 1681 | do { |
| 1682 | AT_READ_REG(hw, REG_ISR, ®_data); |
| 1683 | status = reg_data & hw->intr_mask; |
| 1684 | |
| 1685 | if (status == 0 || (status & ISR_DIS_INT) != 0) { |
| 1686 | if (max_ints != AT_MAX_INT_WORK) |
| 1687 | handled = IRQ_HANDLED; |
| 1688 | break; |
| 1689 | } |
| 1690 | /* link event */ |
| 1691 | if (status & ISR_GPHY) |
| 1692 | atl1c_clear_phy_int(adapter); |
| 1693 | /* Ack ISR */ |
| 1694 | AT_WRITE_REG(hw, REG_ISR, status | ISR_DIS_INT); |
| 1695 | if (status & ISR_RX_PKT) { |
| 1696 | if (likely(napi_schedule_prep(&adapter->napi))) { |
| 1697 | hw->intr_mask &= ~ISR_RX_PKT; |
| 1698 | AT_WRITE_REG(hw, REG_IMR, hw->intr_mask); |
| 1699 | __napi_schedule(&adapter->napi); |
| 1700 | } |
| 1701 | } |
| 1702 | if (status & ISR_TX_PKT) |
| 1703 | atl1c_clean_tx_irq(adapter, atl1c_trans_normal); |
| 1704 | |
| 1705 | handled = IRQ_HANDLED; |
| 1706 | /* check if PCIE PHY Link down */ |
| 1707 | if (status & ISR_ERROR) { |
| 1708 | if (netif_msg_hw(adapter)) |
| 1709 | dev_err(&pdev->dev, |
| 1710 | "atl1c hardware error (status = 0x%x)\n", |
| 1711 | status & ISR_ERROR); |
| 1712 | /* reset MAC */ |
Jie Yang | cb19054 | 2009-12-06 23:16:58 +0000 | [diff] [blame] | 1713 | adapter->work_event |= ATL1C_WORK_EVENT_RESET; |
| 1714 | schedule_work(&adapter->common_task); |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 1715 | return IRQ_HANDLED; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1716 | } |
| 1717 | |
| 1718 | if (status & ISR_OVER) |
| 1719 | if (netif_msg_intr(adapter)) |
| 1720 | dev_warn(&pdev->dev, |
André Goddard Rosa | af901ca | 2009-11-14 13:09:05 -0200 | [diff] [blame] | 1721 | "TX/RX overflow (status = 0x%x)\n", |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1722 | status & ISR_OVER); |
| 1723 | |
| 1724 | /* link event */ |
| 1725 | if (status & (ISR_GPHY | ISR_MANUAL)) { |
Eric Dumazet | a2c483a | 2010-08-20 02:55:16 +0000 | [diff] [blame] | 1726 | netdev->stats.tx_carrier_errors++; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1727 | atl1c_link_chg_event(adapter); |
| 1728 | break; |
| 1729 | } |
| 1730 | |
| 1731 | } while (--max_ints > 0); |
| 1732 | /* re-enable Interrupt*/ |
| 1733 | AT_WRITE_REG(&adapter->hw, REG_ISR, 0); |
| 1734 | return handled; |
| 1735 | } |
| 1736 | |
| 1737 | static inline void atl1c_rx_checksum(struct atl1c_adapter *adapter, |
| 1738 | struct sk_buff *skb, struct atl1c_recv_ret_status *prrs) |
| 1739 | { |
| 1740 | /* |
| 1741 | * The pid field in RRS in not correct sometimes, so we |
| 1742 | * cannot figure out if the packet is fragmented or not, |
| 1743 | * so we tell the KERNEL CHECKSUM_NONE |
| 1744 | */ |
Eric Dumazet | bc8acf2 | 2010-09-02 13:07:41 -0700 | [diff] [blame] | 1745 | skb_checksum_none_assert(skb); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1746 | } |
| 1747 | |
| 1748 | static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter, const int ringid) |
| 1749 | { |
| 1750 | struct atl1c_rfd_ring *rfd_ring = &adapter->rfd_ring[ringid]; |
| 1751 | struct pci_dev *pdev = adapter->pdev; |
| 1752 | struct atl1c_buffer *buffer_info, *next_info; |
| 1753 | struct sk_buff *skb; |
| 1754 | void *vir_addr = NULL; |
| 1755 | u16 num_alloc = 0; |
| 1756 | u16 rfd_next_to_use, next_next; |
| 1757 | struct atl1c_rx_free_desc *rfd_desc; |
| 1758 | |
| 1759 | next_next = rfd_next_to_use = rfd_ring->next_to_use; |
| 1760 | if (++next_next == rfd_ring->count) |
| 1761 | next_next = 0; |
| 1762 | buffer_info = &rfd_ring->buffer_info[rfd_next_to_use]; |
| 1763 | next_info = &rfd_ring->buffer_info[next_next]; |
| 1764 | |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 1765 | while (next_info->flags & ATL1C_BUFFER_FREE) { |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1766 | rfd_desc = ATL1C_RFD_DESC(rfd_ring, rfd_next_to_use); |
| 1767 | |
| 1768 | skb = dev_alloc_skb(adapter->rx_buffer_len); |
| 1769 | if (unlikely(!skb)) { |
| 1770 | if (netif_msg_rx_err(adapter)) |
| 1771 | dev_warn(&pdev->dev, "alloc rx buffer failed\n"); |
| 1772 | break; |
| 1773 | } |
| 1774 | |
| 1775 | /* |
| 1776 | * Make buffer alignment 2 beyond a 16 byte boundary |
| 1777 | * this will result in a 16 byte aligned IP header after |
| 1778 | * the 14 byte MAC header is removed |
| 1779 | */ |
| 1780 | vir_addr = skb->data; |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 1781 | ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1782 | buffer_info->skb = skb; |
| 1783 | buffer_info->length = adapter->rx_buffer_len; |
| 1784 | buffer_info->dma = pci_map_single(pdev, vir_addr, |
| 1785 | buffer_info->length, |
| 1786 | PCI_DMA_FROMDEVICE); |
Jie Yang | 4b45e34 | 2009-12-06 22:56:59 +0000 | [diff] [blame] | 1787 | ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_SINGLE, |
| 1788 | ATL1C_PCIMAP_FROMDEVICE); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1789 | rfd_desc->buffer_addr = cpu_to_le64(buffer_info->dma); |
| 1790 | rfd_next_to_use = next_next; |
| 1791 | if (++next_next == rfd_ring->count) |
| 1792 | next_next = 0; |
| 1793 | buffer_info = &rfd_ring->buffer_info[rfd_next_to_use]; |
| 1794 | next_info = &rfd_ring->buffer_info[next_next]; |
| 1795 | num_alloc++; |
| 1796 | } |
| 1797 | |
| 1798 | if (num_alloc) { |
| 1799 | /* TODO: update mailbox here */ |
| 1800 | wmb(); |
| 1801 | rfd_ring->next_to_use = rfd_next_to_use; |
| 1802 | AT_WRITE_REG(&adapter->hw, atl1c_rfd_prod_idx_regs[ringid], |
| 1803 | rfd_ring->next_to_use & MB_RFDX_PROD_IDX_MASK); |
| 1804 | } |
| 1805 | |
| 1806 | return num_alloc; |
| 1807 | } |
| 1808 | |
| 1809 | static void atl1c_clean_rrd(struct atl1c_rrd_ring *rrd_ring, |
| 1810 | struct atl1c_recv_ret_status *rrs, u16 num) |
| 1811 | { |
| 1812 | u16 i; |
| 1813 | /* the relationship between rrd and rfd is one map one */ |
| 1814 | for (i = 0; i < num; i++, rrs = ATL1C_RRD_DESC(rrd_ring, |
| 1815 | rrd_ring->next_to_clean)) { |
| 1816 | rrs->word3 &= ~RRS_RXD_UPDATED; |
| 1817 | if (++rrd_ring->next_to_clean == rrd_ring->count) |
| 1818 | rrd_ring->next_to_clean = 0; |
| 1819 | } |
| 1820 | } |
| 1821 | |
| 1822 | static void atl1c_clean_rfd(struct atl1c_rfd_ring *rfd_ring, |
| 1823 | struct atl1c_recv_ret_status *rrs, u16 num) |
| 1824 | { |
| 1825 | u16 i; |
| 1826 | u16 rfd_index; |
| 1827 | struct atl1c_buffer *buffer_info = rfd_ring->buffer_info; |
| 1828 | |
| 1829 | rfd_index = (rrs->word0 >> RRS_RX_RFD_INDEX_SHIFT) & |
| 1830 | RRS_RX_RFD_INDEX_MASK; |
| 1831 | for (i = 0; i < num; i++) { |
| 1832 | buffer_info[rfd_index].skb = NULL; |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 1833 | ATL1C_SET_BUFFER_STATE(&buffer_info[rfd_index], |
| 1834 | ATL1C_BUFFER_FREE); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1835 | if (++rfd_index == rfd_ring->count) |
| 1836 | rfd_index = 0; |
| 1837 | } |
| 1838 | rfd_ring->next_to_clean = rfd_index; |
| 1839 | } |
| 1840 | |
| 1841 | static void atl1c_clean_rx_irq(struct atl1c_adapter *adapter, u8 que, |
| 1842 | int *work_done, int work_to_do) |
| 1843 | { |
| 1844 | u16 rfd_num, rfd_index; |
| 1845 | u16 count = 0; |
| 1846 | u16 length; |
| 1847 | struct pci_dev *pdev = adapter->pdev; |
| 1848 | struct net_device *netdev = adapter->netdev; |
| 1849 | struct atl1c_rfd_ring *rfd_ring = &adapter->rfd_ring[que]; |
| 1850 | struct atl1c_rrd_ring *rrd_ring = &adapter->rrd_ring[que]; |
| 1851 | struct sk_buff *skb; |
| 1852 | struct atl1c_recv_ret_status *rrs; |
| 1853 | struct atl1c_buffer *buffer_info; |
| 1854 | |
| 1855 | while (1) { |
| 1856 | if (*work_done >= work_to_do) |
| 1857 | break; |
| 1858 | rrs = ATL1C_RRD_DESC(rrd_ring, rrd_ring->next_to_clean); |
| 1859 | if (likely(RRS_RXD_IS_VALID(rrs->word3))) { |
| 1860 | rfd_num = (rrs->word0 >> RRS_RX_RFD_CNT_SHIFT) & |
| 1861 | RRS_RX_RFD_CNT_MASK; |
roel kluin | 37b76c6 | 2009-07-12 12:57:38 +0000 | [diff] [blame] | 1862 | if (unlikely(rfd_num != 1)) |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1863 | /* TODO support mul rfd*/ |
| 1864 | if (netif_msg_rx_err(adapter)) |
| 1865 | dev_warn(&pdev->dev, |
| 1866 | "Multi rfd not support yet!\n"); |
| 1867 | goto rrs_checked; |
| 1868 | } else { |
| 1869 | break; |
| 1870 | } |
| 1871 | rrs_checked: |
| 1872 | atl1c_clean_rrd(rrd_ring, rrs, rfd_num); |
| 1873 | if (rrs->word3 & (RRS_RX_ERR_SUM | RRS_802_3_LEN_ERR)) { |
| 1874 | atl1c_clean_rfd(rfd_ring, rrs, rfd_num); |
| 1875 | if (netif_msg_rx_err(adapter)) |
| 1876 | dev_warn(&pdev->dev, |
| 1877 | "wrong packet! rrs word3 is %x\n", |
| 1878 | rrs->word3); |
| 1879 | continue; |
| 1880 | } |
| 1881 | |
| 1882 | length = le16_to_cpu((rrs->word3 >> RRS_PKT_SIZE_SHIFT) & |
| 1883 | RRS_PKT_SIZE_MASK); |
| 1884 | /* Good Receive */ |
| 1885 | if (likely(rfd_num == 1)) { |
| 1886 | rfd_index = (rrs->word0 >> RRS_RX_RFD_INDEX_SHIFT) & |
| 1887 | RRS_RX_RFD_INDEX_MASK; |
| 1888 | buffer_info = &rfd_ring->buffer_info[rfd_index]; |
| 1889 | pci_unmap_single(pdev, buffer_info->dma, |
| 1890 | buffer_info->length, PCI_DMA_FROMDEVICE); |
| 1891 | skb = buffer_info->skb; |
| 1892 | } else { |
| 1893 | /* TODO */ |
| 1894 | if (netif_msg_rx_err(adapter)) |
| 1895 | dev_warn(&pdev->dev, |
| 1896 | "Multi rfd not support yet!\n"); |
| 1897 | break; |
| 1898 | } |
| 1899 | atl1c_clean_rfd(rfd_ring, rrs, rfd_num); |
| 1900 | skb_put(skb, length - ETH_FCS_LEN); |
| 1901 | skb->protocol = eth_type_trans(skb, netdev); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1902 | atl1c_rx_checksum(adapter, skb, rrs); |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 1903 | if (rrs->word3 & RRS_VLAN_INS) { |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1904 | u16 vlan; |
| 1905 | |
| 1906 | AT_TAG_TO_VLAN(rrs->vlan_tag, vlan); |
| 1907 | vlan = le16_to_cpu(vlan); |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 1908 | __vlan_hwaccel_put_tag(skb, vlan); |
| 1909 | } |
| 1910 | netif_receive_skb(skb); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1911 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 1912 | (*work_done)++; |
| 1913 | count++; |
| 1914 | } |
| 1915 | if (count) |
| 1916 | atl1c_alloc_rx_buffer(adapter, que); |
| 1917 | } |
| 1918 | |
| 1919 | /* |
| 1920 | * atl1c_clean - NAPI Rx polling callback |
| 1921 | * @adapter: board private structure |
| 1922 | */ |
| 1923 | static int atl1c_clean(struct napi_struct *napi, int budget) |
| 1924 | { |
| 1925 | struct atl1c_adapter *adapter = |
| 1926 | container_of(napi, struct atl1c_adapter, napi); |
| 1927 | int work_done = 0; |
| 1928 | |
| 1929 | /* Keep link state information with original netdev */ |
| 1930 | if (!netif_carrier_ok(adapter->netdev)) |
| 1931 | goto quit_polling; |
| 1932 | /* just enable one RXQ */ |
| 1933 | atl1c_clean_rx_irq(adapter, 0, &work_done, budget); |
| 1934 | |
| 1935 | if (work_done < budget) { |
| 1936 | quit_polling: |
| 1937 | napi_complete(napi); |
| 1938 | adapter->hw.intr_mask |= ISR_RX_PKT; |
| 1939 | AT_WRITE_REG(&adapter->hw, REG_IMR, adapter->hw.intr_mask); |
| 1940 | } |
| 1941 | return work_done; |
| 1942 | } |
| 1943 | |
| 1944 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 1945 | |
| 1946 | /* |
| 1947 | * Polling 'interrupt' - used by things like netconsole to send skbs |
| 1948 | * without having to re-enable interrupts. It's not called while |
| 1949 | * the interrupt routine is executing. |
| 1950 | */ |
| 1951 | static void atl1c_netpoll(struct net_device *netdev) |
| 1952 | { |
| 1953 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 1954 | |
| 1955 | disable_irq(adapter->pdev->irq); |
| 1956 | atl1c_intr(adapter->pdev->irq, netdev); |
| 1957 | enable_irq(adapter->pdev->irq); |
| 1958 | } |
| 1959 | #endif |
| 1960 | |
| 1961 | static inline u16 atl1c_tpd_avail(struct atl1c_adapter *adapter, enum atl1c_trans_queue type) |
| 1962 | { |
| 1963 | struct atl1c_tpd_ring *tpd_ring = &adapter->tpd_ring[type]; |
| 1964 | u16 next_to_use = 0; |
| 1965 | u16 next_to_clean = 0; |
| 1966 | |
| 1967 | next_to_clean = atomic_read(&tpd_ring->next_to_clean); |
| 1968 | next_to_use = tpd_ring->next_to_use; |
| 1969 | |
| 1970 | return (u16)(next_to_clean > next_to_use) ? |
| 1971 | (next_to_clean - next_to_use - 1) : |
| 1972 | (tpd_ring->count + next_to_clean - next_to_use - 1); |
| 1973 | } |
| 1974 | |
| 1975 | /* |
| 1976 | * get next usable tpd |
| 1977 | * Note: should call atl1c_tdp_avail to make sure |
| 1978 | * there is enough tpd to use |
| 1979 | */ |
| 1980 | static struct atl1c_tpd_desc *atl1c_get_tpd(struct atl1c_adapter *adapter, |
| 1981 | enum atl1c_trans_queue type) |
| 1982 | { |
| 1983 | struct atl1c_tpd_ring *tpd_ring = &adapter->tpd_ring[type]; |
| 1984 | struct atl1c_tpd_desc *tpd_desc; |
| 1985 | u16 next_to_use = 0; |
| 1986 | |
| 1987 | next_to_use = tpd_ring->next_to_use; |
| 1988 | if (++tpd_ring->next_to_use == tpd_ring->count) |
| 1989 | tpd_ring->next_to_use = 0; |
| 1990 | tpd_desc = ATL1C_TPD_DESC(tpd_ring, next_to_use); |
| 1991 | memset(tpd_desc, 0, sizeof(struct atl1c_tpd_desc)); |
| 1992 | return tpd_desc; |
| 1993 | } |
| 1994 | |
| 1995 | static struct atl1c_buffer * |
| 1996 | atl1c_get_tx_buffer(struct atl1c_adapter *adapter, struct atl1c_tpd_desc *tpd) |
| 1997 | { |
| 1998 | struct atl1c_tpd_ring *tpd_ring = adapter->tpd_ring; |
| 1999 | |
| 2000 | return &tpd_ring->buffer_info[tpd - |
| 2001 | (struct atl1c_tpd_desc *)tpd_ring->desc]; |
| 2002 | } |
| 2003 | |
| 2004 | /* Calculate the transmit packet descript needed*/ |
| 2005 | static u16 atl1c_cal_tpd_req(const struct sk_buff *skb) |
| 2006 | { |
| 2007 | u16 tpd_req; |
| 2008 | u16 proto_hdr_len = 0; |
| 2009 | |
| 2010 | tpd_req = skb_shinfo(skb)->nr_frags + 1; |
| 2011 | |
| 2012 | if (skb_is_gso(skb)) { |
| 2013 | proto_hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); |
| 2014 | if (proto_hdr_len < skb_headlen(skb)) |
| 2015 | tpd_req++; |
| 2016 | if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) |
| 2017 | tpd_req++; |
| 2018 | } |
| 2019 | return tpd_req; |
| 2020 | } |
| 2021 | |
| 2022 | static int atl1c_tso_csum(struct atl1c_adapter *adapter, |
| 2023 | struct sk_buff *skb, |
| 2024 | struct atl1c_tpd_desc **tpd, |
| 2025 | enum atl1c_trans_queue type) |
| 2026 | { |
| 2027 | struct pci_dev *pdev = adapter->pdev; |
| 2028 | u8 hdr_len; |
| 2029 | u32 real_len; |
| 2030 | unsigned short offload_type; |
| 2031 | int err; |
| 2032 | |
| 2033 | if (skb_is_gso(skb)) { |
| 2034 | if (skb_header_cloned(skb)) { |
| 2035 | err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); |
| 2036 | if (unlikely(err)) |
| 2037 | return -1; |
| 2038 | } |
| 2039 | offload_type = skb_shinfo(skb)->gso_type; |
| 2040 | |
| 2041 | if (offload_type & SKB_GSO_TCPV4) { |
| 2042 | real_len = (((unsigned char *)ip_hdr(skb) - skb->data) |
| 2043 | + ntohs(ip_hdr(skb)->tot_len)); |
| 2044 | |
| 2045 | if (real_len < skb->len) |
| 2046 | pskb_trim(skb, real_len); |
| 2047 | |
| 2048 | hdr_len = (skb_transport_offset(skb) + tcp_hdrlen(skb)); |
| 2049 | if (unlikely(skb->len == hdr_len)) { |
| 2050 | /* only xsum need */ |
| 2051 | if (netif_msg_tx_queued(adapter)) |
| 2052 | dev_warn(&pdev->dev, |
| 2053 | "IPV4 tso with zero data??\n"); |
| 2054 | goto check_sum; |
| 2055 | } else { |
| 2056 | ip_hdr(skb)->check = 0; |
| 2057 | tcp_hdr(skb)->check = ~csum_tcpudp_magic( |
| 2058 | ip_hdr(skb)->saddr, |
| 2059 | ip_hdr(skb)->daddr, |
| 2060 | 0, IPPROTO_TCP, 0); |
| 2061 | (*tpd)->word1 |= 1 << TPD_IPV4_PACKET_SHIFT; |
| 2062 | } |
| 2063 | } |
| 2064 | |
| 2065 | if (offload_type & SKB_GSO_TCPV6) { |
| 2066 | struct atl1c_tpd_ext_desc *etpd = |
| 2067 | *(struct atl1c_tpd_ext_desc **)(tpd); |
| 2068 | |
| 2069 | memset(etpd, 0, sizeof(struct atl1c_tpd_ext_desc)); |
| 2070 | *tpd = atl1c_get_tpd(adapter, type); |
| 2071 | ipv6_hdr(skb)->payload_len = 0; |
| 2072 | /* check payload == 0 byte ? */ |
| 2073 | hdr_len = (skb_transport_offset(skb) + tcp_hdrlen(skb)); |
| 2074 | if (unlikely(skb->len == hdr_len)) { |
| 2075 | /* only xsum need */ |
| 2076 | if (netif_msg_tx_queued(adapter)) |
| 2077 | dev_warn(&pdev->dev, |
| 2078 | "IPV6 tso with zero data??\n"); |
| 2079 | goto check_sum; |
| 2080 | } else |
| 2081 | tcp_hdr(skb)->check = ~csum_ipv6_magic( |
| 2082 | &ipv6_hdr(skb)->saddr, |
| 2083 | &ipv6_hdr(skb)->daddr, |
| 2084 | 0, IPPROTO_TCP, 0); |
| 2085 | etpd->word1 |= 1 << TPD_LSO_EN_SHIFT; |
| 2086 | etpd->word1 |= 1 << TPD_LSO_VER_SHIFT; |
| 2087 | etpd->pkt_len = cpu_to_le32(skb->len); |
| 2088 | (*tpd)->word1 |= 1 << TPD_LSO_VER_SHIFT; |
| 2089 | } |
| 2090 | |
| 2091 | (*tpd)->word1 |= 1 << TPD_LSO_EN_SHIFT; |
| 2092 | (*tpd)->word1 |= (skb_transport_offset(skb) & TPD_TCPHDR_OFFSET_MASK) << |
| 2093 | TPD_TCPHDR_OFFSET_SHIFT; |
| 2094 | (*tpd)->word1 |= (skb_shinfo(skb)->gso_size & TPD_MSS_MASK) << |
| 2095 | TPD_MSS_SHIFT; |
| 2096 | return 0; |
| 2097 | } |
| 2098 | |
| 2099 | check_sum: |
| 2100 | if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) { |
| 2101 | u8 css, cso; |
Michał Mirosław | 0d0b167 | 2010-12-14 15:24:08 +0000 | [diff] [blame] | 2102 | cso = skb_checksum_start_offset(skb); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2103 | |
| 2104 | if (unlikely(cso & 0x1)) { |
| 2105 | if (netif_msg_tx_err(adapter)) |
| 2106 | dev_err(&adapter->pdev->dev, |
| 2107 | "payload offset should not an event number\n"); |
| 2108 | return -1; |
| 2109 | } else { |
| 2110 | css = cso + skb->csum_offset; |
| 2111 | |
| 2112 | (*tpd)->word1 |= ((cso >> 1) & TPD_PLOADOFFSET_MASK) << |
| 2113 | TPD_PLOADOFFSET_SHIFT; |
| 2114 | (*tpd)->word1 |= ((css >> 1) & TPD_CCSUM_OFFSET_MASK) << |
| 2115 | TPD_CCSUM_OFFSET_SHIFT; |
| 2116 | (*tpd)->word1 |= 1 << TPD_CCSUM_EN_SHIFT; |
| 2117 | } |
| 2118 | } |
| 2119 | return 0; |
| 2120 | } |
| 2121 | |
| 2122 | static void atl1c_tx_map(struct atl1c_adapter *adapter, |
| 2123 | struct sk_buff *skb, struct atl1c_tpd_desc *tpd, |
| 2124 | enum atl1c_trans_queue type) |
| 2125 | { |
| 2126 | struct atl1c_tpd_desc *use_tpd = NULL; |
| 2127 | struct atl1c_buffer *buffer_info = NULL; |
| 2128 | u16 buf_len = skb_headlen(skb); |
| 2129 | u16 map_len = 0; |
| 2130 | u16 mapped_len = 0; |
| 2131 | u16 hdr_len = 0; |
| 2132 | u16 nr_frags; |
| 2133 | u16 f; |
| 2134 | int tso; |
| 2135 | |
| 2136 | nr_frags = skb_shinfo(skb)->nr_frags; |
| 2137 | tso = (tpd->word1 >> TPD_LSO_EN_SHIFT) & TPD_LSO_EN_MASK; |
| 2138 | if (tso) { |
| 2139 | /* TSO */ |
| 2140 | map_len = hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); |
| 2141 | use_tpd = tpd; |
| 2142 | |
| 2143 | buffer_info = atl1c_get_tx_buffer(adapter, use_tpd); |
| 2144 | buffer_info->length = map_len; |
| 2145 | buffer_info->dma = pci_map_single(adapter->pdev, |
| 2146 | skb->data, hdr_len, PCI_DMA_TODEVICE); |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 2147 | ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY); |
Jie Yang | 4b45e34 | 2009-12-06 22:56:59 +0000 | [diff] [blame] | 2148 | ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_SINGLE, |
| 2149 | ATL1C_PCIMAP_TODEVICE); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2150 | mapped_len += map_len; |
| 2151 | use_tpd->buffer_addr = cpu_to_le64(buffer_info->dma); |
| 2152 | use_tpd->buffer_len = cpu_to_le16(buffer_info->length); |
| 2153 | } |
| 2154 | |
| 2155 | if (mapped_len < buf_len) { |
| 2156 | /* mapped_len == 0, means we should use the first tpd, |
| 2157 | which is given by caller */ |
| 2158 | if (mapped_len == 0) |
| 2159 | use_tpd = tpd; |
| 2160 | else { |
| 2161 | use_tpd = atl1c_get_tpd(adapter, type); |
| 2162 | memcpy(use_tpd, tpd, sizeof(struct atl1c_tpd_desc)); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2163 | } |
| 2164 | buffer_info = atl1c_get_tx_buffer(adapter, use_tpd); |
| 2165 | buffer_info->length = buf_len - mapped_len; |
| 2166 | buffer_info->dma = |
| 2167 | pci_map_single(adapter->pdev, skb->data + mapped_len, |
| 2168 | buffer_info->length, PCI_DMA_TODEVICE); |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 2169 | ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY); |
Jie Yang | 4b45e34 | 2009-12-06 22:56:59 +0000 | [diff] [blame] | 2170 | ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_SINGLE, |
| 2171 | ATL1C_PCIMAP_TODEVICE); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2172 | use_tpd->buffer_addr = cpu_to_le64(buffer_info->dma); |
| 2173 | use_tpd->buffer_len = cpu_to_le16(buffer_info->length); |
| 2174 | } |
| 2175 | |
| 2176 | for (f = 0; f < nr_frags; f++) { |
| 2177 | struct skb_frag_struct *frag; |
| 2178 | |
| 2179 | frag = &skb_shinfo(skb)->frags[f]; |
| 2180 | |
| 2181 | use_tpd = atl1c_get_tpd(adapter, type); |
| 2182 | memcpy(use_tpd, tpd, sizeof(struct atl1c_tpd_desc)); |
| 2183 | |
| 2184 | buffer_info = atl1c_get_tx_buffer(adapter, use_tpd); |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 2185 | buffer_info->length = skb_frag_size(frag); |
Ian Campbell | 8d1bb86 | 2011-08-29 23:18:20 +0000 | [diff] [blame] | 2186 | buffer_info->dma = skb_frag_dma_map(&adapter->pdev->dev, |
| 2187 | frag, 0, |
| 2188 | buffer_info->length, |
Ian Campbell | 5d6bcdf | 2011-10-06 11:10:48 +0100 | [diff] [blame] | 2189 | DMA_TO_DEVICE); |
Jie Yang | c6060be | 2009-11-06 00:32:05 -0800 | [diff] [blame] | 2190 | ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY); |
Jie Yang | 4b45e34 | 2009-12-06 22:56:59 +0000 | [diff] [blame] | 2191 | ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_PAGE, |
| 2192 | ATL1C_PCIMAP_TODEVICE); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2193 | use_tpd->buffer_addr = cpu_to_le64(buffer_info->dma); |
| 2194 | use_tpd->buffer_len = cpu_to_le16(buffer_info->length); |
| 2195 | } |
| 2196 | |
| 2197 | /* The last tpd */ |
| 2198 | use_tpd->word1 |= 1 << TPD_EOP_SHIFT; |
| 2199 | /* The last buffer info contain the skb address, |
| 2200 | so it will be free after unmap */ |
| 2201 | buffer_info->skb = skb; |
| 2202 | } |
| 2203 | |
| 2204 | static void atl1c_tx_queue(struct atl1c_adapter *adapter, struct sk_buff *skb, |
| 2205 | struct atl1c_tpd_desc *tpd, enum atl1c_trans_queue type) |
| 2206 | { |
| 2207 | struct atl1c_tpd_ring *tpd_ring = &adapter->tpd_ring[type]; |
| 2208 | u32 prod_data; |
| 2209 | |
| 2210 | AT_READ_REG(&adapter->hw, REG_MB_PRIO_PROD_IDX, &prod_data); |
| 2211 | switch (type) { |
| 2212 | case atl1c_trans_high: |
| 2213 | prod_data &= 0xFFFF0000; |
| 2214 | prod_data |= tpd_ring->next_to_use & 0xFFFF; |
| 2215 | break; |
| 2216 | case atl1c_trans_normal: |
| 2217 | prod_data &= 0x0000FFFF; |
| 2218 | prod_data |= (tpd_ring->next_to_use & 0xFFFF) << 16; |
| 2219 | break; |
| 2220 | default: |
| 2221 | break; |
| 2222 | } |
| 2223 | wmb(); |
| 2224 | AT_WRITE_REG(&adapter->hw, REG_MB_PRIO_PROD_IDX, prod_data); |
| 2225 | } |
| 2226 | |
Stephen Hemminger | 61357325 | 2009-08-31 19:50:58 +0000 | [diff] [blame] | 2227 | static netdev_tx_t atl1c_xmit_frame(struct sk_buff *skb, |
| 2228 | struct net_device *netdev) |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2229 | { |
| 2230 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 2231 | unsigned long flags; |
| 2232 | u16 tpd_req = 1; |
| 2233 | struct atl1c_tpd_desc *tpd; |
| 2234 | enum atl1c_trans_queue type = atl1c_trans_normal; |
| 2235 | |
| 2236 | if (test_bit(__AT_DOWN, &adapter->flags)) { |
| 2237 | dev_kfree_skb_any(skb); |
| 2238 | return NETDEV_TX_OK; |
| 2239 | } |
| 2240 | |
| 2241 | tpd_req = atl1c_cal_tpd_req(skb); |
| 2242 | if (!spin_trylock_irqsave(&adapter->tx_lock, flags)) { |
| 2243 | if (netif_msg_pktdata(adapter)) |
| 2244 | dev_info(&adapter->pdev->dev, "tx locked\n"); |
| 2245 | return NETDEV_TX_LOCKED; |
| 2246 | } |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2247 | |
| 2248 | if (atl1c_tpd_avail(adapter, type) < tpd_req) { |
| 2249 | /* no enough descriptor, just stop queue */ |
| 2250 | netif_stop_queue(netdev); |
| 2251 | spin_unlock_irqrestore(&adapter->tx_lock, flags); |
| 2252 | return NETDEV_TX_BUSY; |
| 2253 | } |
| 2254 | |
| 2255 | tpd = atl1c_get_tpd(adapter, type); |
| 2256 | |
| 2257 | /* do TSO and check sum */ |
| 2258 | if (atl1c_tso_csum(adapter, skb, &tpd, type) != 0) { |
| 2259 | spin_unlock_irqrestore(&adapter->tx_lock, flags); |
| 2260 | dev_kfree_skb_any(skb); |
| 2261 | return NETDEV_TX_OK; |
| 2262 | } |
| 2263 | |
Jesse Gross | eab6d18 | 2010-10-20 13:56:03 +0000 | [diff] [blame] | 2264 | if (unlikely(vlan_tx_tag_present(skb))) { |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2265 | u16 vlan = vlan_tx_tag_get(skb); |
| 2266 | __le16 tag; |
| 2267 | |
| 2268 | vlan = cpu_to_le16(vlan); |
| 2269 | AT_VLAN_TO_TAG(vlan, tag); |
| 2270 | tpd->word1 |= 1 << TPD_INS_VTAG_SHIFT; |
| 2271 | tpd->vlan_tag = tag; |
| 2272 | } |
| 2273 | |
| 2274 | if (skb_network_offset(skb) != ETH_HLEN) |
| 2275 | tpd->word1 |= 1 << TPD_ETH_TYPE_SHIFT; /* Ethernet frame */ |
| 2276 | |
| 2277 | atl1c_tx_map(adapter, skb, tpd, type); |
| 2278 | atl1c_tx_queue(adapter, skb, tpd, type); |
| 2279 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2280 | spin_unlock_irqrestore(&adapter->tx_lock, flags); |
| 2281 | return NETDEV_TX_OK; |
| 2282 | } |
| 2283 | |
| 2284 | static void atl1c_free_irq(struct atl1c_adapter *adapter) |
| 2285 | { |
| 2286 | struct net_device *netdev = adapter->netdev; |
| 2287 | |
| 2288 | free_irq(adapter->pdev->irq, netdev); |
| 2289 | |
| 2290 | if (adapter->have_msi) |
| 2291 | pci_disable_msi(adapter->pdev); |
| 2292 | } |
| 2293 | |
| 2294 | static int atl1c_request_irq(struct atl1c_adapter *adapter) |
| 2295 | { |
| 2296 | struct pci_dev *pdev = adapter->pdev; |
| 2297 | struct net_device *netdev = adapter->netdev; |
| 2298 | int flags = 0; |
| 2299 | int err = 0; |
| 2300 | |
| 2301 | adapter->have_msi = true; |
| 2302 | err = pci_enable_msi(adapter->pdev); |
| 2303 | if (err) { |
| 2304 | if (netif_msg_ifup(adapter)) |
| 2305 | dev_err(&pdev->dev, |
| 2306 | "Unable to allocate MSI interrupt Error: %d\n", |
| 2307 | err); |
| 2308 | adapter->have_msi = false; |
| 2309 | } else |
| 2310 | netdev->irq = pdev->irq; |
| 2311 | |
| 2312 | if (!adapter->have_msi) |
| 2313 | flags |= IRQF_SHARED; |
Julia Lawall | 9aff7e9 | 2009-11-18 10:47:03 -0800 | [diff] [blame] | 2314 | err = request_irq(adapter->pdev->irq, atl1c_intr, flags, |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2315 | netdev->name, netdev); |
| 2316 | if (err) { |
| 2317 | if (netif_msg_ifup(adapter)) |
| 2318 | dev_err(&pdev->dev, |
| 2319 | "Unable to allocate interrupt Error: %d\n", |
| 2320 | err); |
| 2321 | if (adapter->have_msi) |
| 2322 | pci_disable_msi(adapter->pdev); |
| 2323 | return err; |
| 2324 | } |
| 2325 | if (netif_msg_ifup(adapter)) |
| 2326 | dev_dbg(&pdev->dev, "atl1c_request_irq OK\n"); |
| 2327 | return err; |
| 2328 | } |
| 2329 | |
stephen hemminger | 0fb1e54 | 2010-10-21 07:50:49 +0000 | [diff] [blame] | 2330 | static int atl1c_up(struct atl1c_adapter *adapter) |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2331 | { |
| 2332 | struct net_device *netdev = adapter->netdev; |
| 2333 | int num; |
| 2334 | int err; |
| 2335 | int i; |
| 2336 | |
| 2337 | netif_carrier_off(netdev); |
| 2338 | atl1c_init_ring_ptrs(adapter); |
| 2339 | atl1c_set_multi(netdev); |
| 2340 | atl1c_restore_vlan(adapter); |
| 2341 | |
| 2342 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 2343 | num = atl1c_alloc_rx_buffer(adapter, i); |
| 2344 | if (unlikely(num == 0)) { |
| 2345 | err = -ENOMEM; |
| 2346 | goto err_alloc_rx; |
| 2347 | } |
| 2348 | } |
| 2349 | |
| 2350 | if (atl1c_configure(adapter)) { |
| 2351 | err = -EIO; |
| 2352 | goto err_up; |
| 2353 | } |
| 2354 | |
| 2355 | err = atl1c_request_irq(adapter); |
| 2356 | if (unlikely(err)) |
| 2357 | goto err_up; |
| 2358 | |
| 2359 | clear_bit(__AT_DOWN, &adapter->flags); |
| 2360 | napi_enable(&adapter->napi); |
| 2361 | atl1c_irq_enable(adapter); |
| 2362 | atl1c_check_link_status(adapter); |
| 2363 | netif_start_queue(netdev); |
| 2364 | return err; |
| 2365 | |
| 2366 | err_up: |
| 2367 | err_alloc_rx: |
| 2368 | atl1c_clean_rx_ring(adapter); |
| 2369 | return err; |
| 2370 | } |
| 2371 | |
stephen hemminger | 0fb1e54 | 2010-10-21 07:50:49 +0000 | [diff] [blame] | 2372 | static void atl1c_down(struct atl1c_adapter *adapter) |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2373 | { |
| 2374 | struct net_device *netdev = adapter->netdev; |
| 2375 | |
| 2376 | atl1c_del_timer(adapter); |
Jie Yang | cb19054 | 2009-12-06 23:16:58 +0000 | [diff] [blame] | 2377 | adapter->work_event = 0; /* clear all event */ |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2378 | /* signal that we're down so the interrupt handler does not |
| 2379 | * reschedule our watchdog timer */ |
| 2380 | set_bit(__AT_DOWN, &adapter->flags); |
| 2381 | netif_carrier_off(netdev); |
| 2382 | napi_disable(&adapter->napi); |
| 2383 | atl1c_irq_disable(adapter); |
| 2384 | atl1c_free_irq(adapter); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2385 | /* reset MAC to disable all RX/TX */ |
| 2386 | atl1c_reset_mac(&adapter->hw); |
| 2387 | msleep(1); |
| 2388 | |
| 2389 | adapter->link_speed = SPEED_0; |
| 2390 | adapter->link_duplex = -1; |
| 2391 | atl1c_clean_tx_ring(adapter, atl1c_trans_normal); |
| 2392 | atl1c_clean_tx_ring(adapter, atl1c_trans_high); |
| 2393 | atl1c_clean_rx_ring(adapter); |
| 2394 | } |
| 2395 | |
| 2396 | /* |
| 2397 | * atl1c_open - Called when a network interface is made active |
| 2398 | * @netdev: network interface device structure |
| 2399 | * |
| 2400 | * Returns 0 on success, negative value on failure |
| 2401 | * |
| 2402 | * The open entry point is called when a network interface is made |
| 2403 | * active by the system (IFF_UP). At this point all resources needed |
| 2404 | * for transmit and receive operations are allocated, the interrupt |
| 2405 | * handler is registered with the OS, the watchdog timer is started, |
| 2406 | * and the stack is notified that the interface is ready. |
| 2407 | */ |
| 2408 | static int atl1c_open(struct net_device *netdev) |
| 2409 | { |
| 2410 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 2411 | int err; |
| 2412 | |
| 2413 | /* disallow open during test */ |
| 2414 | if (test_bit(__AT_TESTING, &adapter->flags)) |
| 2415 | return -EBUSY; |
| 2416 | |
| 2417 | /* allocate rx/tx dma buffer & descriptors */ |
| 2418 | err = atl1c_setup_ring_resources(adapter); |
| 2419 | if (unlikely(err)) |
| 2420 | return err; |
| 2421 | |
| 2422 | err = atl1c_up(adapter); |
| 2423 | if (unlikely(err)) |
| 2424 | goto err_up; |
| 2425 | |
| 2426 | if (adapter->hw.ctrl_flags & ATL1C_FPGA_VERSION) { |
| 2427 | u32 phy_data; |
| 2428 | |
| 2429 | AT_READ_REG(&adapter->hw, REG_MDIO_CTRL, &phy_data); |
| 2430 | phy_data |= MDIO_AP_EN; |
| 2431 | AT_WRITE_REG(&adapter->hw, REG_MDIO_CTRL, phy_data); |
| 2432 | } |
| 2433 | return 0; |
| 2434 | |
| 2435 | err_up: |
| 2436 | atl1c_free_irq(adapter); |
| 2437 | atl1c_free_ring_resources(adapter); |
| 2438 | atl1c_reset_mac(&adapter->hw); |
| 2439 | return err; |
| 2440 | } |
| 2441 | |
| 2442 | /* |
| 2443 | * atl1c_close - Disables a network interface |
| 2444 | * @netdev: network interface device structure |
| 2445 | * |
| 2446 | * Returns 0, this is not allowed to fail |
| 2447 | * |
| 2448 | * The close entry point is called when an interface is de-activated |
| 2449 | * by the OS. The hardware is still under the drivers control, but |
| 2450 | * needs to be disabled. A global MAC reset is issued to stop the |
| 2451 | * hardware, and all transmit and receive resources are freed. |
| 2452 | */ |
| 2453 | static int atl1c_close(struct net_device *netdev) |
| 2454 | { |
| 2455 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 2456 | |
| 2457 | WARN_ON(test_bit(__AT_RESETTING, &adapter->flags)); |
| 2458 | atl1c_down(adapter); |
| 2459 | atl1c_free_ring_resources(adapter); |
| 2460 | return 0; |
| 2461 | } |
| 2462 | |
Rafael J. Wysocki | 762e302 | 2010-12-22 03:07:52 +0000 | [diff] [blame] | 2463 | static int atl1c_suspend(struct device *dev) |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2464 | { |
Rafael J. Wysocki | 762e302 | 2010-12-22 03:07:52 +0000 | [diff] [blame] | 2465 | struct pci_dev *pdev = to_pci_dev(dev); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2466 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 2467 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 2468 | struct atl1c_hw *hw = &adapter->hw; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 2469 | u32 mac_ctrl_data = 0; |
| 2470 | u32 master_ctrl_data = 0; |
jie.yang@atheros.com | 55865c6 | 2009-09-20 19:01:58 +0000 | [diff] [blame] | 2471 | u32 wol_ctrl_data = 0; |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 2472 | u16 mii_intr_status_data = 0; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2473 | u32 wufc = adapter->wol; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2474 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 2475 | atl1c_disable_l0s_l1(hw); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2476 | if (netif_running(netdev)) { |
| 2477 | WARN_ON(test_bit(__AT_RESETTING, &adapter->flags)); |
| 2478 | atl1c_down(adapter); |
| 2479 | } |
| 2480 | netif_device_detach(netdev); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2481 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 2482 | if (wufc) |
| 2483 | if (atl1c_phy_power_saving(hw) != 0) |
| 2484 | dev_dbg(&pdev->dev, "phy power saving failed"); |
| 2485 | |
| 2486 | AT_READ_REG(hw, REG_MASTER_CTRL, &master_ctrl_data); |
| 2487 | AT_READ_REG(hw, REG_MAC_CTRL, &mac_ctrl_data); |
| 2488 | |
| 2489 | master_ctrl_data &= ~MASTER_CTRL_CLK_SEL_DIS; |
| 2490 | mac_ctrl_data &= ~(MAC_CTRL_PRMLEN_MASK << MAC_CTRL_PRMLEN_SHIFT); |
| 2491 | mac_ctrl_data |= (((u32)adapter->hw.preamble_len & |
| 2492 | MAC_CTRL_PRMLEN_MASK) << |
| 2493 | MAC_CTRL_PRMLEN_SHIFT); |
| 2494 | mac_ctrl_data &= ~(MAC_CTRL_SPEED_MASK << MAC_CTRL_SPEED_SHIFT); |
| 2495 | mac_ctrl_data &= ~MAC_CTRL_DUPLX; |
| 2496 | |
| 2497 | if (wufc) { |
| 2498 | mac_ctrl_data |= MAC_CTRL_RX_EN; |
| 2499 | if (adapter->link_speed == SPEED_1000 || |
| 2500 | adapter->link_speed == SPEED_0) { |
| 2501 | mac_ctrl_data |= atl1c_mac_speed_1000 << |
| 2502 | MAC_CTRL_SPEED_SHIFT; |
| 2503 | mac_ctrl_data |= MAC_CTRL_DUPLX; |
| 2504 | } else |
| 2505 | mac_ctrl_data |= atl1c_mac_speed_10_100 << |
| 2506 | MAC_CTRL_SPEED_SHIFT; |
| 2507 | |
| 2508 | if (adapter->link_duplex == DUPLEX_FULL) |
| 2509 | mac_ctrl_data |= MAC_CTRL_DUPLX; |
| 2510 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2511 | /* turn on magic packet wol */ |
| 2512 | if (wufc & AT_WUFC_MAG) |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 2513 | wol_ctrl_data |= WOL_MAGIC_EN | WOL_MAGIC_PME_EN; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2514 | |
| 2515 | if (wufc & AT_WUFC_LNKC) { |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2516 | wol_ctrl_data |= WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN; |
| 2517 | /* only link up can wake up */ |
| 2518 | if (atl1c_write_phy_reg(hw, MII_IER, IER_LINK_UP) != 0) { |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 2519 | dev_dbg(&pdev->dev, "%s: read write phy " |
| 2520 | "register failed.\n", |
| 2521 | atl1c_driver_name); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2522 | } |
| 2523 | } |
| 2524 | /* clear phy interrupt */ |
| 2525 | atl1c_read_phy_reg(hw, MII_ISR, &mii_intr_status_data); |
| 2526 | /* Config MAC Ctrl register */ |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 2527 | __atl1c_vlan_mode(netdev->features, &mac_ctrl_data); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2528 | |
| 2529 | /* magic packet maybe Broadcast&multicast&Unicast frame */ |
| 2530 | if (wufc & AT_WUFC_MAG) |
| 2531 | mac_ctrl_data |= MAC_CTRL_BC_EN; |
| 2532 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 2533 | dev_dbg(&pdev->dev, |
| 2534 | "%s: suspend MAC=0x%x\n", |
| 2535 | atl1c_driver_name, mac_ctrl_data); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2536 | AT_WRITE_REG(hw, REG_MASTER_CTRL, master_ctrl_data); |
| 2537 | AT_WRITE_REG(hw, REG_WOL_CTRL, wol_ctrl_data); |
| 2538 | AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl_data); |
| 2539 | |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 2540 | AT_WRITE_REG(hw, REG_GPHY_CTRL, GPHY_CTRL_DEFAULT | |
| 2541 | GPHY_CTRL_EXT_RESET); |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 2542 | } else { |
| 2543 | AT_WRITE_REG(hw, REG_GPHY_CTRL, GPHY_CTRL_POWER_SAVING); |
| 2544 | master_ctrl_data |= MASTER_CTRL_CLK_SEL_DIS; |
| 2545 | mac_ctrl_data |= atl1c_mac_speed_10_100 << MAC_CTRL_SPEED_SHIFT; |
| 2546 | mac_ctrl_data |= MAC_CTRL_DUPLX; |
| 2547 | AT_WRITE_REG(hw, REG_MASTER_CTRL, master_ctrl_data); |
| 2548 | AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl_data); |
| 2549 | AT_WRITE_REG(hw, REG_WOL_CTRL, 0); |
| 2550 | hw->phy_configured = false; /* re-init PHY when resume */ |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2551 | } |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2552 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2553 | return 0; |
| 2554 | } |
| 2555 | |
David S. Miller | d187c1a | 2011-05-19 18:44:41 -0400 | [diff] [blame] | 2556 | #ifdef CONFIG_PM_SLEEP |
Rafael J. Wysocki | 762e302 | 2010-12-22 03:07:52 +0000 | [diff] [blame] | 2557 | static int atl1c_resume(struct device *dev) |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2558 | { |
Rafael J. Wysocki | 762e302 | 2010-12-22 03:07:52 +0000 | [diff] [blame] | 2559 | struct pci_dev *pdev = to_pci_dev(dev); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2560 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 2561 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 2562 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2563 | AT_WRITE_REG(&adapter->hw, REG_WOL_CTRL, 0); |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 2564 | atl1c_reset_pcie(&adapter->hw, ATL1C_PCIE_L0S_L1_DISABLE | |
| 2565 | ATL1C_PCIE_PHY_RESET); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2566 | |
| 2567 | atl1c_phy_reset(&adapter->hw); |
| 2568 | atl1c_reset_mac(&adapter->hw); |
Jie Yang | 8f574b3 | 2010-06-01 00:28:12 -0700 | [diff] [blame] | 2569 | atl1c_phy_init(&adapter->hw); |
| 2570 | |
| 2571 | #if 0 |
| 2572 | AT_READ_REG(&adapter->hw, REG_PM_CTRLSTAT, &pm_data); |
| 2573 | pm_data &= ~PM_CTRLSTAT_PME_EN; |
| 2574 | AT_WRITE_REG(&adapter->hw, REG_PM_CTRLSTAT, pm_data); |
| 2575 | #endif |
| 2576 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2577 | netif_device_attach(netdev); |
| 2578 | if (netif_running(netdev)) |
| 2579 | atl1c_up(adapter); |
| 2580 | |
| 2581 | return 0; |
| 2582 | } |
David S. Miller | d187c1a | 2011-05-19 18:44:41 -0400 | [diff] [blame] | 2583 | #endif |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2584 | |
| 2585 | static void atl1c_shutdown(struct pci_dev *pdev) |
| 2586 | { |
Rafael J. Wysocki | 762e302 | 2010-12-22 03:07:52 +0000 | [diff] [blame] | 2587 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 2588 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 2589 | |
| 2590 | atl1c_suspend(&pdev->dev); |
| 2591 | pci_wake_from_d3(pdev, adapter->wol); |
| 2592 | pci_set_power_state(pdev, PCI_D3hot); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2593 | } |
| 2594 | |
| 2595 | static const struct net_device_ops atl1c_netdev_ops = { |
| 2596 | .ndo_open = atl1c_open, |
| 2597 | .ndo_stop = atl1c_close, |
| 2598 | .ndo_validate_addr = eth_validate_addr, |
| 2599 | .ndo_start_xmit = atl1c_xmit_frame, |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 2600 | .ndo_set_mac_address = atl1c_set_mac_addr, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 2601 | .ndo_set_rx_mode = atl1c_set_multi, |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2602 | .ndo_change_mtu = atl1c_change_mtu, |
Michał Mirosław | 782d640 | 2011-04-07 07:32:18 +0000 | [diff] [blame] | 2603 | .ndo_fix_features = atl1c_fix_features, |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 2604 | .ndo_set_features = atl1c_set_features, |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2605 | .ndo_do_ioctl = atl1c_ioctl, |
| 2606 | .ndo_tx_timeout = atl1c_tx_timeout, |
| 2607 | .ndo_get_stats = atl1c_get_stats, |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2608 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 2609 | .ndo_poll_controller = atl1c_netpoll, |
| 2610 | #endif |
| 2611 | }; |
| 2612 | |
| 2613 | static int atl1c_init_netdev(struct net_device *netdev, struct pci_dev *pdev) |
| 2614 | { |
| 2615 | SET_NETDEV_DEV(netdev, &pdev->dev); |
| 2616 | pci_set_drvdata(pdev, netdev); |
| 2617 | |
| 2618 | netdev->irq = pdev->irq; |
| 2619 | netdev->netdev_ops = &atl1c_netdev_ops; |
| 2620 | netdev->watchdog_timeo = AT_TX_WATCHDOG; |
| 2621 | atl1c_set_ethtool_ops(netdev); |
| 2622 | |
| 2623 | /* TODO: add when ready */ |
Michał Mirosław | 782d640 | 2011-04-07 07:32:18 +0000 | [diff] [blame] | 2624 | netdev->hw_features = NETIF_F_SG | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2625 | NETIF_F_HW_CSUM | |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 2626 | NETIF_F_HW_VLAN_RX | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2627 | NETIF_F_TSO | |
| 2628 | NETIF_F_TSO6; |
Michał Mirosław | 782d640 | 2011-04-07 07:32:18 +0000 | [diff] [blame] | 2629 | netdev->features = netdev->hw_features | |
Jiri Pirko | 46facce | 2011-07-20 04:54:12 +0000 | [diff] [blame] | 2630 | NETIF_F_HW_VLAN_TX; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2631 | return 0; |
| 2632 | } |
| 2633 | |
| 2634 | /* |
| 2635 | * atl1c_probe - Device Initialization Routine |
| 2636 | * @pdev: PCI device information struct |
| 2637 | * @ent: entry in atl1c_pci_tbl |
| 2638 | * |
| 2639 | * Returns 0 on success, negative on failure |
| 2640 | * |
| 2641 | * atl1c_probe initializes an adapter identified by a pci_dev structure. |
| 2642 | * The OS initialization, configuring of the adapter private structure, |
| 2643 | * and a hardware reset occur. |
| 2644 | */ |
| 2645 | static int __devinit atl1c_probe(struct pci_dev *pdev, |
| 2646 | const struct pci_device_id *ent) |
| 2647 | { |
| 2648 | struct net_device *netdev; |
| 2649 | struct atl1c_adapter *adapter; |
| 2650 | static int cards_found; |
| 2651 | |
| 2652 | int err = 0; |
| 2653 | |
| 2654 | /* enable device (incl. PCI PM wakeup and hotplug setup) */ |
| 2655 | err = pci_enable_device_mem(pdev); |
| 2656 | if (err) { |
| 2657 | dev_err(&pdev->dev, "cannot enable PCI device\n"); |
| 2658 | return err; |
| 2659 | } |
| 2660 | |
| 2661 | /* |
| 2662 | * The atl1c chip can DMA to 64-bit addresses, but it uses a single |
| 2663 | * shared register for the high 32 bits, so only a single, aligned, |
| 2664 | * 4 GB physical address range can be used at a time. |
| 2665 | * |
| 2666 | * Supporting 64-bit DMA on this hardware is more trouble than it's |
| 2667 | * worth. It is far easier to limit to 32-bit DMA than update |
| 2668 | * various kernel subsystems to support the mechanics required by a |
| 2669 | * fixed-high-32-bit system. |
| 2670 | */ |
Yang Hongyang | e930438 | 2009-04-13 14:40:14 -0700 | [diff] [blame] | 2671 | if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) || |
| 2672 | (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) { |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2673 | dev_err(&pdev->dev, "No usable DMA configuration,aborting\n"); |
| 2674 | goto err_dma; |
| 2675 | } |
| 2676 | |
| 2677 | err = pci_request_regions(pdev, atl1c_driver_name); |
| 2678 | if (err) { |
| 2679 | dev_err(&pdev->dev, "cannot obtain PCI resources\n"); |
| 2680 | goto err_pci_reg; |
| 2681 | } |
| 2682 | |
| 2683 | pci_set_master(pdev); |
| 2684 | |
| 2685 | netdev = alloc_etherdev(sizeof(struct atl1c_adapter)); |
| 2686 | if (netdev == NULL) { |
| 2687 | err = -ENOMEM; |
| 2688 | dev_err(&pdev->dev, "etherdev alloc failed\n"); |
| 2689 | goto err_alloc_etherdev; |
| 2690 | } |
| 2691 | |
| 2692 | err = atl1c_init_netdev(netdev, pdev); |
| 2693 | if (err) { |
| 2694 | dev_err(&pdev->dev, "init netdevice failed\n"); |
| 2695 | goto err_init_netdev; |
| 2696 | } |
| 2697 | adapter = netdev_priv(netdev); |
| 2698 | adapter->bd_number = cards_found; |
| 2699 | adapter->netdev = netdev; |
| 2700 | adapter->pdev = pdev; |
| 2701 | adapter->hw.adapter = adapter; |
| 2702 | adapter->msg_enable = netif_msg_init(-1, atl1c_default_msg); |
| 2703 | adapter->hw.hw_addr = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0)); |
| 2704 | if (!adapter->hw.hw_addr) { |
| 2705 | err = -EIO; |
| 2706 | dev_err(&pdev->dev, "cannot map device registers\n"); |
| 2707 | goto err_ioremap; |
| 2708 | } |
| 2709 | netdev->base_addr = (unsigned long)adapter->hw.hw_addr; |
| 2710 | |
| 2711 | /* init mii data */ |
| 2712 | adapter->mii.dev = netdev; |
| 2713 | adapter->mii.mdio_read = atl1c_mdio_read; |
| 2714 | adapter->mii.mdio_write = atl1c_mdio_write; |
| 2715 | adapter->mii.phy_id_mask = 0x1f; |
| 2716 | adapter->mii.reg_num_mask = MDIO_REG_ADDR_MASK; |
| 2717 | netif_napi_add(netdev, &adapter->napi, atl1c_clean, 64); |
| 2718 | setup_timer(&adapter->phy_config_timer, atl1c_phy_config, |
| 2719 | (unsigned long)adapter); |
| 2720 | /* setup the private structure */ |
| 2721 | err = atl1c_sw_init(adapter); |
| 2722 | if (err) { |
| 2723 | dev_err(&pdev->dev, "net device private data init failed\n"); |
| 2724 | goto err_sw_init; |
| 2725 | } |
| 2726 | atl1c_reset_pcie(&adapter->hw, ATL1C_PCIE_L0S_L1_DISABLE | |
| 2727 | ATL1C_PCIE_PHY_RESET); |
| 2728 | |
| 2729 | /* Init GPHY as early as possible due to power saving issue */ |
| 2730 | atl1c_phy_reset(&adapter->hw); |
| 2731 | |
| 2732 | err = atl1c_reset_mac(&adapter->hw); |
| 2733 | if (err) { |
| 2734 | err = -EIO; |
| 2735 | goto err_reset; |
| 2736 | } |
| 2737 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2738 | /* reset the controller to |
| 2739 | * put the device in a known good starting state */ |
| 2740 | err = atl1c_phy_init(&adapter->hw); |
| 2741 | if (err) { |
| 2742 | err = -EIO; |
| 2743 | goto err_reset; |
| 2744 | } |
| 2745 | if (atl1c_read_mac_addr(&adapter->hw) != 0) { |
| 2746 | err = -EIO; |
| 2747 | dev_err(&pdev->dev, "get mac address failed\n"); |
| 2748 | goto err_eeprom; |
| 2749 | } |
| 2750 | memcpy(netdev->dev_addr, adapter->hw.mac_addr, netdev->addr_len); |
| 2751 | memcpy(netdev->perm_addr, adapter->hw.mac_addr, netdev->addr_len); |
| 2752 | if (netif_msg_probe(adapter)) |
hartleys | 8299117 | 2010-01-05 06:54:01 +0000 | [diff] [blame] | 2753 | dev_dbg(&pdev->dev, "mac address : %pM\n", |
| 2754 | adapter->hw.mac_addr); |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2755 | |
| 2756 | atl1c_hw_set_mac_addr(&adapter->hw); |
Jie Yang | cb19054 | 2009-12-06 23:16:58 +0000 | [diff] [blame] | 2757 | INIT_WORK(&adapter->common_task, atl1c_common_task); |
| 2758 | adapter->work_event = 0; |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2759 | err = register_netdev(netdev); |
| 2760 | if (err) { |
| 2761 | dev_err(&pdev->dev, "register netdevice failed\n"); |
| 2762 | goto err_register; |
| 2763 | } |
| 2764 | |
| 2765 | if (netif_msg_probe(adapter)) |
| 2766 | dev_info(&pdev->dev, "version %s\n", ATL1C_DRV_VERSION); |
| 2767 | cards_found++; |
| 2768 | return 0; |
| 2769 | |
| 2770 | err_reset: |
| 2771 | err_register: |
| 2772 | err_sw_init: |
| 2773 | err_eeprom: |
| 2774 | iounmap(adapter->hw.hw_addr); |
| 2775 | err_init_netdev: |
| 2776 | err_ioremap: |
| 2777 | free_netdev(netdev); |
| 2778 | err_alloc_etherdev: |
| 2779 | pci_release_regions(pdev); |
| 2780 | err_pci_reg: |
| 2781 | err_dma: |
| 2782 | pci_disable_device(pdev); |
| 2783 | return err; |
| 2784 | } |
| 2785 | |
| 2786 | /* |
| 2787 | * atl1c_remove - Device Removal Routine |
| 2788 | * @pdev: PCI device information struct |
| 2789 | * |
| 2790 | * atl1c_remove is called by the PCI subsystem to alert the driver |
| 2791 | * that it should release a PCI device. The could be caused by a |
| 2792 | * Hot-Plug event, or because the driver is going to be removed from |
| 2793 | * memory. |
| 2794 | */ |
| 2795 | static void __devexit atl1c_remove(struct pci_dev *pdev) |
| 2796 | { |
| 2797 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 2798 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 2799 | |
| 2800 | unregister_netdev(netdev); |
| 2801 | atl1c_phy_disable(&adapter->hw); |
| 2802 | |
| 2803 | iounmap(adapter->hw.hw_addr); |
| 2804 | |
| 2805 | pci_release_regions(pdev); |
| 2806 | pci_disable_device(pdev); |
| 2807 | free_netdev(netdev); |
| 2808 | } |
| 2809 | |
| 2810 | /* |
| 2811 | * atl1c_io_error_detected - called when PCI error is detected |
| 2812 | * @pdev: Pointer to PCI device |
| 2813 | * @state: The current pci connection state |
| 2814 | * |
| 2815 | * This function is called after a PCI bus error affecting |
| 2816 | * this device has been detected. |
| 2817 | */ |
| 2818 | static pci_ers_result_t atl1c_io_error_detected(struct pci_dev *pdev, |
| 2819 | pci_channel_state_t state) |
| 2820 | { |
| 2821 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 2822 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 2823 | |
| 2824 | netif_device_detach(netdev); |
| 2825 | |
Dean Nelson | 005fb4f | 2009-07-31 09:13:02 +0000 | [diff] [blame] | 2826 | if (state == pci_channel_io_perm_failure) |
| 2827 | return PCI_ERS_RESULT_DISCONNECT; |
| 2828 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2829 | if (netif_running(netdev)) |
| 2830 | atl1c_down(adapter); |
| 2831 | |
| 2832 | pci_disable_device(pdev); |
| 2833 | |
| 2834 | /* Request a slot slot reset. */ |
| 2835 | return PCI_ERS_RESULT_NEED_RESET; |
| 2836 | } |
| 2837 | |
| 2838 | /* |
| 2839 | * atl1c_io_slot_reset - called after the pci bus has been reset. |
| 2840 | * @pdev: Pointer to PCI device |
| 2841 | * |
| 2842 | * Restart the card from scratch, as if from a cold-boot. Implementation |
| 2843 | * resembles the first-half of the e1000_resume routine. |
| 2844 | */ |
| 2845 | static pci_ers_result_t atl1c_io_slot_reset(struct pci_dev *pdev) |
| 2846 | { |
| 2847 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 2848 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 2849 | |
| 2850 | if (pci_enable_device(pdev)) { |
| 2851 | if (netif_msg_hw(adapter)) |
| 2852 | dev_err(&pdev->dev, |
| 2853 | "Cannot re-enable PCI device after reset\n"); |
| 2854 | return PCI_ERS_RESULT_DISCONNECT; |
| 2855 | } |
| 2856 | pci_set_master(pdev); |
| 2857 | |
| 2858 | pci_enable_wake(pdev, PCI_D3hot, 0); |
| 2859 | pci_enable_wake(pdev, PCI_D3cold, 0); |
| 2860 | |
| 2861 | atl1c_reset_mac(&adapter->hw); |
| 2862 | |
| 2863 | return PCI_ERS_RESULT_RECOVERED; |
| 2864 | } |
| 2865 | |
| 2866 | /* |
| 2867 | * atl1c_io_resume - called when traffic can start flowing again. |
| 2868 | * @pdev: Pointer to PCI device |
| 2869 | * |
| 2870 | * This callback is called when the error recovery driver tells us that |
| 2871 | * its OK to resume normal operation. Implementation resembles the |
| 2872 | * second-half of the atl1c_resume routine. |
| 2873 | */ |
| 2874 | static void atl1c_io_resume(struct pci_dev *pdev) |
| 2875 | { |
| 2876 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 2877 | struct atl1c_adapter *adapter = netdev_priv(netdev); |
| 2878 | |
| 2879 | if (netif_running(netdev)) { |
| 2880 | if (atl1c_up(adapter)) { |
| 2881 | if (netif_msg_hw(adapter)) |
| 2882 | dev_err(&pdev->dev, |
| 2883 | "Cannot bring device back up after reset\n"); |
| 2884 | return; |
| 2885 | } |
| 2886 | } |
| 2887 | |
| 2888 | netif_device_attach(netdev); |
| 2889 | } |
| 2890 | |
| 2891 | static struct pci_error_handlers atl1c_err_handler = { |
| 2892 | .error_detected = atl1c_io_error_detected, |
| 2893 | .slot_reset = atl1c_io_slot_reset, |
| 2894 | .resume = atl1c_io_resume, |
| 2895 | }; |
| 2896 | |
Rafael J. Wysocki | 762e302 | 2010-12-22 03:07:52 +0000 | [diff] [blame] | 2897 | static SIMPLE_DEV_PM_OPS(atl1c_pm_ops, atl1c_suspend, atl1c_resume); |
| 2898 | |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2899 | static struct pci_driver atl1c_driver = { |
| 2900 | .name = atl1c_driver_name, |
| 2901 | .id_table = atl1c_pci_tbl, |
| 2902 | .probe = atl1c_probe, |
| 2903 | .remove = __devexit_p(atl1c_remove), |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2904 | .shutdown = atl1c_shutdown, |
Rafael J. Wysocki | 762e302 | 2010-12-22 03:07:52 +0000 | [diff] [blame] | 2905 | .err_handler = &atl1c_err_handler, |
| 2906 | .driver.pm = &atl1c_pm_ops, |
Jie Yang | 43250dd | 2009-02-18 17:24:15 -0800 | [diff] [blame] | 2907 | }; |
| 2908 | |
| 2909 | /* |
| 2910 | * atl1c_init_module - Driver Registration Routine |
| 2911 | * |
| 2912 | * atl1c_init_module is the first routine called when the driver is |
| 2913 | * loaded. All it does is register with the PCI subsystem. |
| 2914 | */ |
| 2915 | static int __init atl1c_init_module(void) |
| 2916 | { |
| 2917 | return pci_register_driver(&atl1c_driver); |
| 2918 | } |
| 2919 | |
| 2920 | /* |
| 2921 | * atl1c_exit_module - Driver Exit Cleanup Routine |
| 2922 | * |
| 2923 | * atl1c_exit_module is called just before the driver is removed |
| 2924 | * from memory. |
| 2925 | */ |
| 2926 | static void __exit atl1c_exit_module(void) |
| 2927 | { |
| 2928 | pci_unregister_driver(&atl1c_driver); |
| 2929 | } |
| 2930 | |
| 2931 | module_init(atl1c_init_module); |
| 2932 | module_exit(atl1c_exit_module); |