From: Jay Cliburn Date: Sun, 3 Feb 2008 01:50:12 +0000 (-0600) Subject: atl1: reduce forward declarations X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6446a860f8b72b6a7b6722b3e30c4b00d6f99967;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git atl1: reduce forward declarations Rearrange functions to allow removal of some forward declarations. Make certain global functions static along the way. Signed-off-by: Jay Cliburn Acked-by: Chris Snook Signed-off-by: Jeff Garzik --- diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c index 6f4a1d5376bc..240db847e129 100644 --- a/drivers/net/atlx/atl1.c +++ b/drivers/net/atlx/atl1.c @@ -108,452 +108,436 @@ module_param(debug, int, 0); MODULE_PARM_DESC(debug, "Message level (0=none,...,16=all)"); /* - * atl1_sw_init - Initialize general software structures (struct atl1_adapter) - * @adapter: board private structure to initialize - * - * atl1_sw_init initializes the Adapter private data structure. - * Fields are initialized based on PCI device information and - * OS network device settings (MTU size). + * Reset the transmit and receive units; mask and clear all interrupts. + * hw - Struct containing variables accessed by shared code + * return : 0 or idle status (if error) */ -static int __devinit atl1_sw_init(struct atl1_adapter *adapter) +static s32 atl1_reset_hw(struct atl1_hw *hw) { - struct atl1_hw *hw = &adapter->hw; - struct net_device *netdev = adapter->netdev; - - hw->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; - hw->min_frame_size = ETH_ZLEN + ETH_FCS_LEN; + struct pci_dev *pdev = hw->back->pdev; + struct atl1_adapter *adapter = hw->back; + u32 icr; + int i; - adapter->wol = 0; - adapter->rx_buffer_len = (hw->max_frame_size + 7) & ~7; - adapter->ict = 50000; /* 100ms */ - adapter->link_speed = SPEED_0; /* hardware init */ - adapter->link_duplex = FULL_DUPLEX; + /* + * Clear Interrupt mask to stop board from generating + * interrupts & Clear any pending interrupt events + */ + /* + * iowrite32(0, hw->hw_addr + REG_IMR); + * iowrite32(0xffffffff, hw->hw_addr + REG_ISR); + */ - hw->phy_configured = false; - hw->preamble_len = 7; - hw->ipgt = 0x60; - hw->min_ifg = 0x50; - hw->ipgr1 = 0x40; - hw->ipgr2 = 0x60; - hw->max_retry = 0xf; - hw->lcol = 0x37; - hw->jam_ipg = 7; - hw->rfd_burst = 8; - hw->rrd_burst = 8; - hw->rfd_fetch_gap = 1; - hw->rx_jumbo_th = adapter->rx_buffer_len / 8; - hw->rx_jumbo_lkah = 1; - hw->rrd_ret_timer = 16; - hw->tpd_burst = 4; - hw->tpd_fetch_th = 16; - hw->txf_burst = 0x100; - hw->tx_jumbo_task_th = (hw->max_frame_size + 7) >> 3; - hw->tpd_fetch_gap = 1; - hw->rcb_value = atl1_rcb_64; - hw->dma_ord = atl1_dma_ord_enh; - hw->dmar_block = atl1_dma_req_256; - hw->dmaw_block = atl1_dma_req_256; - hw->cmb_rrd = 4; - hw->cmb_tpd = 4; - hw->cmb_rx_timer = 1; /* about 2us */ - hw->cmb_tx_timer = 1; /* about 2us */ - hw->smb_timer = 100000; /* about 200ms */ + /* + * Issue Soft Reset to the MAC. This will reset the chip's + * transmit, receive, DMA. It will not effect + * the current PCI configuration. The global reset bit is self- + * clearing, and should clear within a microsecond. + */ + iowrite32(MASTER_CTRL_SOFT_RST, hw->hw_addr + REG_MASTER_CTRL); + ioread32(hw->hw_addr + REG_MASTER_CTRL); - spin_lock_init(&adapter->lock); - spin_lock_init(&adapter->mb_lock); + iowrite16(1, hw->hw_addr + REG_PHY_ENABLE); + ioread16(hw->hw_addr + REG_PHY_ENABLE); - return 0; -} + /* delay about 1ms */ + msleep(1); -static int mdio_read(struct net_device *netdev, int phy_id, int reg_num) -{ - struct atl1_adapter *adapter = netdev_priv(netdev); - u16 result; + /* Wait at least 10ms for All module to be Idle */ + for (i = 0; i < 10; i++) { + icr = ioread32(hw->hw_addr + REG_IDLE_STATUS); + if (!icr) + break; + /* delay 1 ms */ + msleep(1); + /* FIXME: still the right way to do this? */ + cpu_relax(); + } - atl1_read_phy_reg(&adapter->hw, reg_num & 0x1f, &result); + if (icr) { + if (netif_msg_hw(adapter)) + dev_dbg(&pdev->dev, "ICR = 0x%x\n", icr); + return icr; + } - return result; + return 0; } -static void mdio_write(struct net_device *netdev, int phy_id, int reg_num, - int val) +/* function about EEPROM + * + * check_eeprom_exist + * return 0 if eeprom exist + */ +static int atl1_check_eeprom_exist(struct atl1_hw *hw) { - struct atl1_adapter *adapter = netdev_priv(netdev); + u32 value; + value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL); + if (value & SPI_FLASH_CTRL_EN_VPD) { + value &= ~SPI_FLASH_CTRL_EN_VPD; + iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL); + } - atl1_write_phy_reg(&adapter->hw, reg_num, val); + value = ioread16(hw->hw_addr + REG_PCIE_CAP_LIST); + return ((value & 0xFF00) == 0x6C00) ? 0 : 1; } -/* - * atl1_mii_ioctl - - * @netdev: - * @ifreq: - * @cmd: - */ -static int atl1_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) +static bool atl1_read_eeprom(struct atl1_hw *hw, u32 offset, u32 *p_value) { - struct atl1_adapter *adapter = netdev_priv(netdev); - unsigned long flags; - int retval; + int i; + u32 control; - if (!netif_running(netdev)) - return -EINVAL; + if (offset & 3) + /* address do not align */ + return false; - spin_lock_irqsave(&adapter->lock, flags); - retval = generic_mii_ioctl(&adapter->mii, if_mii(ifr), cmd, NULL); - spin_unlock_irqrestore(&adapter->lock, flags); + iowrite32(0, hw->hw_addr + REG_VPD_DATA); + control = (offset & VPD_CAP_VPD_ADDR_MASK) << VPD_CAP_VPD_ADDR_SHIFT; + iowrite32(control, hw->hw_addr + REG_VPD_CAP); + ioread32(hw->hw_addr + REG_VPD_CAP); - return retval; + for (i = 0; i < 10; i++) { + msleep(2); + control = ioread32(hw->hw_addr + REG_VPD_CAP); + if (control & VPD_CAP_VPD_FLAG) + break; + } + if (control & VPD_CAP_VPD_FLAG) { + *p_value = ioread32(hw->hw_addr + REG_VPD_DATA); + return true; + } + /* timeout */ + return false; } /* - * atl1_setup_mem_resources - allocate Tx / RX descriptor resources - * @adapter: board private structure - * - * Return 0 on success, negative on failure + * Reads the value from a PHY register + * hw - Struct containing variables accessed by shared code + * reg_addr - address of the PHY register to read */ -static s32 atl1_setup_ring_resources(struct atl1_adapter *adapter) +s32 atl1_read_phy_reg(struct atl1_hw *hw, u16 reg_addr, u16 *phy_data) { - struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; - struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring; - struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring; - struct atl1_ring_header *ring_header = &adapter->ring_header; - struct pci_dev *pdev = adapter->pdev; - int size; - u8 offset = 0; - - size = sizeof(struct atl1_buffer) * (tpd_ring->count + rfd_ring->count); - tpd_ring->buffer_info = kzalloc(size, GFP_KERNEL); - if (unlikely(!tpd_ring->buffer_info)) { - if (netif_msg_drv(adapter)) - dev_err(&pdev->dev, "kzalloc failed , size = D%d\n", - size); - goto err_nomem; - } - rfd_ring->buffer_info = - (struct atl1_buffer *)(tpd_ring->buffer_info + tpd_ring->count); + u32 val; + int i; - /* - * real ring DMA buffer - * each ring/block may need up to 8 bytes for alignment, hence the - * additional 40 bytes tacked onto the end. - */ - ring_header->size = size = - sizeof(struct tx_packet_desc) * tpd_ring->count - + sizeof(struct rx_free_desc) * rfd_ring->count - + sizeof(struct rx_return_desc) * rrd_ring->count - + sizeof(struct coals_msg_block) - + sizeof(struct stats_msg_block) - + 40; + val = ((u32) (reg_addr & MDIO_REG_ADDR_MASK)) << MDIO_REG_ADDR_SHIFT | + MDIO_START | MDIO_SUP_PREAMBLE | MDIO_RW | MDIO_CLK_25_4 << + MDIO_CLK_SEL_SHIFT; + iowrite32(val, hw->hw_addr + REG_MDIO_CTRL); + ioread32(hw->hw_addr + REG_MDIO_CTRL); - ring_header->desc = pci_alloc_consistent(pdev, ring_header->size, - &ring_header->dma); - if (unlikely(!ring_header->desc)) { - if (netif_msg_drv(adapter)) - dev_err(&pdev->dev, "pci_alloc_consistent failed\n"); - goto err_nomem; + for (i = 0; i < MDIO_WAIT_TIMES; i++) { + udelay(2); + val = ioread32(hw->hw_addr + REG_MDIO_CTRL); + if (!(val & (MDIO_START | MDIO_BUSY))) + break; + } + if (!(val & (MDIO_START | MDIO_BUSY))) { + *phy_data = (u16) val; + return 0; } + return ATLX_ERR_PHY; +} - memset(ring_header->desc, 0, ring_header->size); +#define CUSTOM_SPI_CS_SETUP 2 +#define CUSTOM_SPI_CLK_HI 2 +#define CUSTOM_SPI_CLK_LO 2 +#define CUSTOM_SPI_CS_HOLD 2 +#define CUSTOM_SPI_CS_HI 3 - /* init TPD ring */ - tpd_ring->dma = ring_header->dma; - offset = (tpd_ring->dma & 0x7) ? (8 - (ring_header->dma & 0x7)) : 0; - tpd_ring->dma += offset; - tpd_ring->desc = (u8 *) ring_header->desc + offset; - tpd_ring->size = sizeof(struct tx_packet_desc) * tpd_ring->count; +static bool atl1_spi_read(struct atl1_hw *hw, u32 addr, u32 *buf) +{ + int i; + u32 value; - /* init RFD ring */ - rfd_ring->dma = tpd_ring->dma + tpd_ring->size; - offset = (rfd_ring->dma & 0x7) ? (8 - (rfd_ring->dma & 0x7)) : 0; - rfd_ring->dma += offset; - rfd_ring->desc = (u8 *) tpd_ring->desc + (tpd_ring->size + offset); - rfd_ring->size = sizeof(struct rx_free_desc) * rfd_ring->count; + iowrite32(0, hw->hw_addr + REG_SPI_DATA); + iowrite32(addr, hw->hw_addr + REG_SPI_ADDR); + value = SPI_FLASH_CTRL_WAIT_READY | + (CUSTOM_SPI_CS_SETUP & SPI_FLASH_CTRL_CS_SETUP_MASK) << + SPI_FLASH_CTRL_CS_SETUP_SHIFT | (CUSTOM_SPI_CLK_HI & + SPI_FLASH_CTRL_CLK_HI_MASK) << + SPI_FLASH_CTRL_CLK_HI_SHIFT | (CUSTOM_SPI_CLK_LO & + SPI_FLASH_CTRL_CLK_LO_MASK) << + SPI_FLASH_CTRL_CLK_LO_SHIFT | (CUSTOM_SPI_CS_HOLD & + SPI_FLASH_CTRL_CS_HOLD_MASK) << + SPI_FLASH_CTRL_CS_HOLD_SHIFT | (CUSTOM_SPI_CS_HI & + SPI_FLASH_CTRL_CS_HI_MASK) << + SPI_FLASH_CTRL_CS_HI_SHIFT | (1 & SPI_FLASH_CTRL_INS_MASK) << + SPI_FLASH_CTRL_INS_SHIFT; - /* init RRD ring */ - rrd_ring->dma = rfd_ring->dma + rfd_ring->size; - offset = (rrd_ring->dma & 0x7) ? (8 - (rrd_ring->dma & 0x7)) : 0; - rrd_ring->dma += offset; - rrd_ring->desc = (u8 *) rfd_ring->desc + (rfd_ring->size + offset); - rrd_ring->size = sizeof(struct rx_return_desc) * rrd_ring->count; - - - /* init CMB */ - adapter->cmb.dma = rrd_ring->dma + rrd_ring->size; - offset = (adapter->cmb.dma & 0x7) ? (8 - (adapter->cmb.dma & 0x7)) : 0; - adapter->cmb.dma += offset; - adapter->cmb.cmb = (struct coals_msg_block *) - ((u8 *) rrd_ring->desc + (rrd_ring->size + offset)); - - /* init SMB */ - adapter->smb.dma = adapter->cmb.dma + sizeof(struct coals_msg_block); - offset = (adapter->smb.dma & 0x7) ? (8 - (adapter->smb.dma & 0x7)) : 0; - adapter->smb.dma += offset; - adapter->smb.smb = (struct stats_msg_block *) - ((u8 *) adapter->cmb.cmb + - (sizeof(struct coals_msg_block) + offset)); - - return 0; + iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL); -err_nomem: - kfree(tpd_ring->buffer_info); - return -ENOMEM; -} + value |= SPI_FLASH_CTRL_START; + iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL); + ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL); -static void atl1_init_ring_ptrs(struct atl1_adapter *adapter) -{ - struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; - struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring; - struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring; + for (i = 0; i < 10; i++) { + msleep(1); + value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL); + if (!(value & SPI_FLASH_CTRL_START)) + break; + } - atomic_set(&tpd_ring->next_to_use, 0); - atomic_set(&tpd_ring->next_to_clean, 0); + if (value & SPI_FLASH_CTRL_START) + return false; - rfd_ring->next_to_clean = 0; - atomic_set(&rfd_ring->next_to_use, 0); + *buf = ioread32(hw->hw_addr + REG_SPI_DATA); - rrd_ring->next_to_use = 0; - atomic_set(&rrd_ring->next_to_clean, 0); + return true; } /* - * atl1_clean_rx_ring - Free RFD Buffers - * @adapter: board private structure + * get_permanent_address + * return 0 if get valid mac address, */ -static void atl1_clean_rx_ring(struct atl1_adapter *adapter) +static int atl1_get_permanent_address(struct atl1_hw *hw) { - struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring; - struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring; - struct atl1_buffer *buffer_info; - struct pci_dev *pdev = adapter->pdev; - unsigned long size; - unsigned int i; + u32 addr[2]; + u32 i, control; + u16 reg; + u8 eth_addr[ETH_ALEN]; + bool key_valid; - /* Free all the Rx ring sk_buffs */ - for (i = 0; i < rfd_ring->count; i++) { - buffer_info = &rfd_ring->buffer_info[i]; - if (buffer_info->dma) { - pci_unmap_page(pdev, buffer_info->dma, - buffer_info->length, PCI_DMA_FROMDEVICE); - buffer_info->dma = 0; + if (is_valid_ether_addr(hw->perm_mac_addr)) + return 0; + + /* init */ + addr[0] = addr[1] = 0; + + if (!atl1_check_eeprom_exist(hw)) { + reg = 0; + key_valid = false; + /* Read out all EEPROM content */ + i = 0; + while (1) { + if (atl1_read_eeprom(hw, i + 0x100, &control)) { + if (key_valid) { + if (reg == REG_MAC_STA_ADDR) + addr[0] = control; + else if (reg == (REG_MAC_STA_ADDR + 4)) + addr[1] = control; + key_valid = false; + } else if ((control & 0xff) == 0x5A) { + key_valid = true; + reg = (u16) (control >> 16); + } else + break; + } else + /* read error */ + break; + i += 4; } - if (buffer_info->skb) { - dev_kfree_skb(buffer_info->skb); - buffer_info->skb = NULL; + + *(u32 *) ð_addr[2] = swab32(addr[0]); + *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]); + if (is_valid_ether_addr(eth_addr)) { + memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN); + return 0; } + return 1; } - size = sizeof(struct atl1_buffer) * rfd_ring->count; - memset(rfd_ring->buffer_info, 0, size); + /* see if SPI FLAGS exist ? */ + addr[0] = addr[1] = 0; + reg = 0; + key_valid = false; + i = 0; + while (1) { + if (atl1_spi_read(hw, i + 0x1f000, &control)) { + if (key_valid) { + if (reg == REG_MAC_STA_ADDR) + addr[0] = control; + else if (reg == (REG_MAC_STA_ADDR + 4)) + addr[1] = control; + key_valid = false; + } else if ((control & 0xff) == 0x5A) { + key_valid = true; + reg = (u16) (control >> 16); + } else + /* data end */ + break; + } else + /* read error */ + break; + i += 4; + } - /* Zero out the descriptor ring */ - memset(rfd_ring->desc, 0, rfd_ring->size); + *(u32 *) ð_addr[2] = swab32(addr[0]); + *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]); + if (is_valid_ether_addr(eth_addr)) { + memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN); + return 0; + } - rfd_ring->next_to_clean = 0; - atomic_set(&rfd_ring->next_to_use, 0); + /* + * On some motherboards, the MAC address is written by the + * BIOS directly to the MAC register during POST, and is + * not stored in eeprom. If all else thus far has failed + * to fetch the permanent MAC address, try reading it directly. + */ + addr[0] = ioread32(hw->hw_addr + REG_MAC_STA_ADDR); + addr[1] = ioread16(hw->hw_addr + (REG_MAC_STA_ADDR + 4)); + *(u32 *) ð_addr[2] = swab32(addr[0]); + *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]); + if (is_valid_ether_addr(eth_addr)) { + memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN); + return 0; + } - rrd_ring->next_to_use = 0; - atomic_set(&rrd_ring->next_to_clean, 0); + return 1; } /* - * atl1_clean_tx_ring - Free Tx Buffers - * @adapter: board private structure + * Reads the adapter's MAC address from the EEPROM + * hw - Struct containing variables accessed by shared code */ -static void atl1_clean_tx_ring(struct atl1_adapter *adapter) +s32 atl1_read_mac_addr(struct atl1_hw *hw) { - struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; - struct atl1_buffer *buffer_info; - struct pci_dev *pdev = adapter->pdev; - unsigned long size; - unsigned int i; - - /* Free all the Tx ring sk_buffs */ - for (i = 0; i < tpd_ring->count; i++) { - buffer_info = &tpd_ring->buffer_info[i]; - if (buffer_info->dma) { - pci_unmap_page(pdev, buffer_info->dma, - buffer_info->length, PCI_DMA_TODEVICE); - buffer_info->dma = 0; - } - } - - for (i = 0; i < tpd_ring->count; i++) { - buffer_info = &tpd_ring->buffer_info[i]; - if (buffer_info->skb) { - dev_kfree_skb_any(buffer_info->skb); - buffer_info->skb = NULL; - } - } - - size = sizeof(struct atl1_buffer) * tpd_ring->count; - memset(tpd_ring->buffer_info, 0, size); + u16 i; - /* Zero out the descriptor ring */ - memset(tpd_ring->desc, 0, tpd_ring->size); + if (atl1_get_permanent_address(hw)) + random_ether_addr(hw->perm_mac_addr); - atomic_set(&tpd_ring->next_to_use, 0); - atomic_set(&tpd_ring->next_to_clean, 0); + for (i = 0; i < ETH_ALEN; i++) + hw->mac_addr[i] = hw->perm_mac_addr[i]; + return 0; } /* - * atl1_free_ring_resources - Free Tx / RX descriptor Resources - * @adapter: board private structure + * Hashes an address to determine its location in the multicast table + * hw - Struct containing variables accessed by shared code + * mc_addr - the multicast address to hash * - * Free all transmit software resources + * atl1_hash_mc_addr + * purpose + * set hash value for a multicast address + * hash calcu processing : + * 1. calcu 32bit CRC for multicast address + * 2. reverse crc with MSB to LSB */ -static void atl1_free_ring_resources(struct atl1_adapter *adapter) +u32 atl1_hash_mc_addr(struct atl1_hw *hw, u8 *mc_addr) { - struct pci_dev *pdev = adapter->pdev; - struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; - struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring; - struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring; - struct atl1_ring_header *ring_header = &adapter->ring_header; - - atl1_clean_tx_ring(adapter); - atl1_clean_rx_ring(adapter); - - kfree(tpd_ring->buffer_info); - pci_free_consistent(pdev, ring_header->size, ring_header->desc, - ring_header->dma); - - tpd_ring->buffer_info = NULL; - tpd_ring->desc = NULL; - tpd_ring->dma = 0; + u32 crc32, value = 0; + int i; - rfd_ring->buffer_info = NULL; - rfd_ring->desc = NULL; - rfd_ring->dma = 0; + crc32 = ether_crc_le(6, mc_addr); + for (i = 0; i < 32; i++) + value |= (((crc32 >> i) & 1) << (31 - i)); - rrd_ring->desc = NULL; - rrd_ring->dma = 0; + return value; } -static void atl1_setup_mac_ctrl(struct atl1_adapter *adapter) +/* + * Sets the bit in the multicast table corresponding to the hash value. + * hw - Struct containing variables accessed by shared code + * hash_value - Multicast address hash value + */ +void atl1_hash_set(struct atl1_hw *hw, u32 hash_value) { - u32 value; - struct atl1_hw *hw = &adapter->hw; - struct net_device *netdev = adapter->netdev; - /* Config MAC CTRL Register */ - value = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN; - /* duplex */ - if (FULL_DUPLEX == adapter->link_duplex) - value |= MAC_CTRL_DUPLX; - /* speed */ - value |= ((u32) ((SPEED_1000 == adapter->link_speed) ? - MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100) << - MAC_CTRL_SPEED_SHIFT); - /* flow control */ - value |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW); - /* PAD & CRC */ - value |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD); - /* preamble length */ - value |= (((u32) adapter->hw.preamble_len - & MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT); - /* vlan */ - if (adapter->vlgrp) - value |= MAC_CTRL_RMV_VLAN; - /* rx checksum - if (adapter->rx_csum) - value |= MAC_CTRL_RX_CHKSUM_EN; + u32 hash_bit, hash_reg; + u32 mta; + + /* + * The HASH Table is a register array of 2 32-bit registers. + * It is treated like an array of 64 bits. We want to set + * bit BitArray[hash_value]. So we figure out what register + * the bit is in, read it, OR in the new bit, then write + * back the new value. The register is determined by the + * upper 7 bits of the hash value and the bit within that + * register are determined by the lower 5 bits of the value. */ - /* filter mode */ - value |= MAC_CTRL_BC_EN; - if (netdev->flags & IFF_PROMISC) - value |= MAC_CTRL_PROMIS_EN; - else if (netdev->flags & IFF_ALLMULTI) - value |= MAC_CTRL_MC_ALL_EN; - /* value |= MAC_CTRL_LOOPBACK; */ - iowrite32(value, hw->hw_addr + REG_MAC_CTRL); + hash_reg = (hash_value >> 31) & 0x1; + hash_bit = (hash_value >> 26) & 0x1F; + mta = ioread32((hw->hw_addr + REG_RX_HASH_TABLE) + (hash_reg << 2)); + mta |= (1 << hash_bit); + iowrite32(mta, (hw->hw_addr + REG_RX_HASH_TABLE) + (hash_reg << 2)); } -static u32 atl1_check_link(struct atl1_adapter *adapter) +/* + * Writes a value to a PHY register + * hw - Struct containing variables accessed by shared code + * reg_addr - address of the PHY register to write + * data - data to write to the PHY + */ +static s32 atl1_write_phy_reg(struct atl1_hw *hw, u32 reg_addr, u16 phy_data) { - struct atl1_hw *hw = &adapter->hw; - struct net_device *netdev = adapter->netdev; - u32 ret_val; - u16 speed, duplex, phy_data; - int reconfig = 0; - - /* MII_BMSR must read twice */ - atl1_read_phy_reg(hw, MII_BMSR, &phy_data); - atl1_read_phy_reg(hw, MII_BMSR, &phy_data); - if (!(phy_data & BMSR_LSTATUS)) { - /* link down */ - if (netif_carrier_ok(netdev)) { - /* old link state: Up */ - if (netif_msg_link(adapter)) - dev_info(&adapter->pdev->dev, "link is down\n"); - adapter->link_speed = SPEED_0; - netif_carrier_off(netdev); - netif_stop_queue(netdev); - } - return 0; - } + int i; + u32 val; - /* Link Up */ - ret_val = atl1_get_speed_and_duplex(hw, &speed, &duplex); - if (ret_val) - return ret_val; + val = ((u32) (phy_data & MDIO_DATA_MASK)) << MDIO_DATA_SHIFT | + (reg_addr & MDIO_REG_ADDR_MASK) << MDIO_REG_ADDR_SHIFT | + MDIO_SUP_PREAMBLE | + MDIO_START | MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT; + iowrite32(val, hw->hw_addr + REG_MDIO_CTRL); + ioread32(hw->hw_addr + REG_MDIO_CTRL); - switch (hw->media_type) { - case MEDIA_TYPE_1000M_FULL: - if (speed != SPEED_1000 || duplex != FULL_DUPLEX) - reconfig = 1; - break; - case MEDIA_TYPE_100M_FULL: - if (speed != SPEED_100 || duplex != FULL_DUPLEX) - reconfig = 1; - break; - case MEDIA_TYPE_100M_HALF: - if (speed != SPEED_100 || duplex != HALF_DUPLEX) - reconfig = 1; - break; - case MEDIA_TYPE_10M_FULL: - if (speed != SPEED_10 || duplex != FULL_DUPLEX) - reconfig = 1; - break; - case MEDIA_TYPE_10M_HALF: - if (speed != SPEED_10 || duplex != HALF_DUPLEX) - reconfig = 1; - break; + for (i = 0; i < MDIO_WAIT_TIMES; i++) { + udelay(2); + val = ioread32(hw->hw_addr + REG_MDIO_CTRL); + if (!(val & (MDIO_START | MDIO_BUSY))) + break; } - /* link result is our setting */ - if (!reconfig) { - if (adapter->link_speed != speed - || adapter->link_duplex != duplex) { - adapter->link_speed = speed; - adapter->link_duplex = duplex; - atl1_setup_mac_ctrl(adapter); - if (netif_msg_link(adapter)) - dev_info(&adapter->pdev->dev, - "%s link is up %d Mbps %s\n", - netdev->name, adapter->link_speed, - adapter->link_duplex == FULL_DUPLEX ? - "full duplex" : "half duplex"); - } - if (!netif_carrier_ok(netdev)) { - /* Link down -> Up */ - netif_carrier_on(netdev); - netif_wake_queue(netdev); - } + if (!(val & (MDIO_START | MDIO_BUSY))) return 0; - } - /* change original link status */ - if (netif_carrier_ok(netdev)) { - adapter->link_speed = SPEED_0; - netif_carrier_off(netdev); - netif_stop_queue(netdev); - } + return ATLX_ERR_PHY; +} - if (hw->media_type != MEDIA_TYPE_AUTO_SENSOR && - hw->media_type != MEDIA_TYPE_1000M_FULL) { +/* + * Make L001's PHY out of Power Saving State (bug) + * hw - Struct containing variables accessed by shared code + * when power on, L001's PHY always on Power saving State + * (Gigabit Link forbidden) + */ +static s32 atl1_phy_leave_power_saving(struct atl1_hw *hw) +{ + s32 ret; + ret = atl1_write_phy_reg(hw, 29, 0x0029); + if (ret) + return ret; + return atl1_write_phy_reg(hw, 30, 0); +} + +/* + *TODO: do something or get rid of this + */ +static s32 atl1_phy_enter_power_saving(struct atl1_hw *hw) +{ +/* s32 ret_val; + * u16 phy_data; + */ + +/* + ret_val = atl1_write_phy_reg(hw, ...); + ret_val = atl1_write_phy_reg(hw, ...); + .... +*/ + return 0; +} + +/* + * Resets the PHY and make all config validate + * hw - Struct containing variables accessed by shared code + * + * Sets bit 15 and 12 of the MII Control regiser (for F001 bug) + */ +static s32 atl1_phy_reset(struct atl1_hw *hw) +{ + struct pci_dev *pdev = hw->back->pdev; + struct atl1_adapter *adapter = hw->back; + s32 ret_val; + u16 phy_data; + + if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR || + hw->media_type == MEDIA_TYPE_1000M_FULL) + phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN; + else { switch (hw->media_type) { case MEDIA_TYPE_100M_FULL: - phy_data = MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 | - MII_CR_RESET; + phy_data = + MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 | + MII_CR_RESET; break; case MEDIA_TYPE_100M_HALF: phy_data = MII_CR_SPEED_100 | MII_CR_RESET; @@ -567,2722 +551,2654 @@ static u32 atl1_check_link(struct atl1_adapter *adapter) phy_data = MII_CR_SPEED_10 | MII_CR_RESET; break; } - atl1_write_phy_reg(hw, MII_BMCR, phy_data); - return 0; } - /* auto-neg, insert timer to re-config phy */ - if (!adapter->phy_timer_pending) { - adapter->phy_timer_pending = true; - mod_timer(&adapter->phy_config_timer, jiffies + 3 * HZ); - } + ret_val = atl1_write_phy_reg(hw, MII_BMCR, phy_data); + if (ret_val) { + u32 val; + int i; + /* pcie serdes link may be down! */ + if (netif_msg_hw(adapter)) + dev_dbg(&pdev->dev, "pcie phy link down\n"); + + for (i = 0; i < 25; i++) { + msleep(1); + val = ioread32(hw->hw_addr + REG_MDIO_CTRL); + if (!(val & (MDIO_START | MDIO_BUSY))) + break; + } + if ((val & (MDIO_START | MDIO_BUSY)) != 0) { + if (netif_msg_hw(adapter)) + dev_warn(&pdev->dev, + "pcie link down at least 25ms\n"); + return ret_val; + } + } return 0; } -static void set_flow_ctrl_old(struct atl1_adapter *adapter) +/* + * Configures PHY autoneg and flow control advertisement settings + * hw - Struct containing variables accessed by shared code + */ +static s32 atl1_phy_setup_autoneg_adv(struct atl1_hw *hw) { - u32 hi, lo, value; + s32 ret_val; + s16 mii_autoneg_adv_reg; + s16 mii_1000t_ctrl_reg; - /* RFD Flow Control */ - value = adapter->rfd_ring.count; - hi = value / 16; - if (hi < 2) - hi = 2; - lo = value * 7 / 8; + /* Read the MII Auto-Neg Advertisement Register (Address 4). */ + mii_autoneg_adv_reg = MII_AR_DEFAULT_CAP_MASK; - value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) | - ((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT); - iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RXF_PAUSE_THRESH); + /* Read the MII 1000Base-T Control Register (Address 9). */ + mii_1000t_ctrl_reg = MII_ATLX_CR_1000T_DEFAULT_CAP_MASK; - /* RRD Flow Control */ - value = adapter->rrd_ring.count; - lo = value / 16; - hi = value * 7 / 8; - if (lo < 2) - lo = 2; - value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) | - ((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT); - iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RRD_PAUSE_THRESH); -} - -static void set_flow_ctrl_new(struct atl1_hw *hw) -{ - u32 hi, lo, value; - - /* RXF Flow Control */ - value = ioread32(hw->hw_addr + REG_SRAM_RXF_LEN); - lo = value / 16; - if (lo < 192) - lo = 192; - hi = value * 7 / 8; - if (hi < lo) - hi = lo + 16; - value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) | - ((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT); - iowrite32(value, hw->hw_addr + REG_RXQ_RXF_PAUSE_THRESH); - - /* RRD Flow Control */ - value = ioread32(hw->hw_addr + REG_SRAM_RRD_LEN); - lo = value / 8; - hi = value * 7 / 8; - if (lo < 2) - lo = 2; - if (hi < lo) - hi = lo + 3; - value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) | - ((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT); - iowrite32(value, hw->hw_addr + REG_RXQ_RRD_PAUSE_THRESH); -} - -/* - * atl1_configure - Configure Transmit&Receive Unit after Reset - * @adapter: board private structure - * - * Configure the Tx /Rx unit of the MAC after a reset. - */ -static u32 atl1_configure(struct atl1_adapter *adapter) -{ - struct atl1_hw *hw = &adapter->hw; - u32 value; - - /* clear interrupt status */ - iowrite32(0xffffffff, adapter->hw.hw_addr + REG_ISR); - - /* set MAC Address */ - value = (((u32) hw->mac_addr[2]) << 24) | - (((u32) hw->mac_addr[3]) << 16) | - (((u32) hw->mac_addr[4]) << 8) | - (((u32) hw->mac_addr[5])); - iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR); - value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1])); - iowrite32(value, hw->hw_addr + (REG_MAC_STA_ADDR + 4)); - - /* tx / rx ring */ - - /* HI base address */ - iowrite32((u32) ((adapter->tpd_ring.dma & 0xffffffff00000000ULL) >> 32), - hw->hw_addr + REG_DESC_BASE_ADDR_HI); - /* LO base address */ - iowrite32((u32) (adapter->rfd_ring.dma & 0x00000000ffffffffULL), - hw->hw_addr + REG_DESC_RFD_ADDR_LO); - iowrite32((u32) (adapter->rrd_ring.dma & 0x00000000ffffffffULL), - hw->hw_addr + REG_DESC_RRD_ADDR_LO); - iowrite32((u32) (adapter->tpd_ring.dma & 0x00000000ffffffffULL), - hw->hw_addr + REG_DESC_TPD_ADDR_LO); - iowrite32((u32) (adapter->cmb.dma & 0x00000000ffffffffULL), - hw->hw_addr + REG_DESC_CMB_ADDR_LO); - iowrite32((u32) (adapter->smb.dma & 0x00000000ffffffffULL), - hw->hw_addr + REG_DESC_SMB_ADDR_LO); - - /* element count */ - value = adapter->rrd_ring.count; - value <<= 16; - value += adapter->rfd_ring.count; - iowrite32(value, hw->hw_addr + REG_DESC_RFD_RRD_RING_SIZE); - iowrite32(adapter->tpd_ring.count, hw->hw_addr + - REG_DESC_TPD_RING_SIZE); - - /* Load Ptr */ - iowrite32(1, hw->hw_addr + REG_LOAD_PTR); - - /* config Mailbox */ - value = ((atomic_read(&adapter->tpd_ring.next_to_use) - & MB_TPD_PROD_INDX_MASK) << MB_TPD_PROD_INDX_SHIFT) | - ((atomic_read(&adapter->rrd_ring.next_to_clean) - & MB_RRD_CONS_INDX_MASK) << MB_RRD_CONS_INDX_SHIFT) | - ((atomic_read(&adapter->rfd_ring.next_to_use) - & MB_RFD_PROD_INDX_MASK) << MB_RFD_PROD_INDX_SHIFT); - iowrite32(value, hw->hw_addr + REG_MAILBOX); - - /* config IPG/IFG */ - value = (((u32) hw->ipgt & MAC_IPG_IFG_IPGT_MASK) - << MAC_IPG_IFG_IPGT_SHIFT) | - (((u32) hw->min_ifg & MAC_IPG_IFG_MIFG_MASK) - << MAC_IPG_IFG_MIFG_SHIFT) | - (((u32) hw->ipgr1 & MAC_IPG_IFG_IPGR1_MASK) - << MAC_IPG_IFG_IPGR1_SHIFT) | - (((u32) hw->ipgr2 & MAC_IPG_IFG_IPGR2_MASK) - << MAC_IPG_IFG_IPGR2_SHIFT); - iowrite32(value, hw->hw_addr + REG_MAC_IPG_IFG); - - /* config Half-Duplex Control */ - value = ((u32) hw->lcol & MAC_HALF_DUPLX_CTRL_LCOL_MASK) | - (((u32) hw->max_retry & MAC_HALF_DUPLX_CTRL_RETRY_MASK) - << MAC_HALF_DUPLX_CTRL_RETRY_SHIFT) | - MAC_HALF_DUPLX_CTRL_EXC_DEF_EN | - (0xa << MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT) | - (((u32) hw->jam_ipg & MAC_HALF_DUPLX_CTRL_JAMIPG_MASK) - << MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT); - iowrite32(value, hw->hw_addr + REG_MAC_HALF_DUPLX_CTRL); + /* + * First we clear all the 10/100 mb speed bits in the Auto-Neg + * Advertisement Register (Address 4) and the 1000 mb speed bits in + * the 1000Base-T Control Register (Address 9). + */ + mii_autoneg_adv_reg &= ~MII_AR_SPEED_MASK; + mii_1000t_ctrl_reg &= ~MII_ATLX_CR_1000T_SPEED_MASK; - /* set Interrupt Moderator Timer */ - iowrite16(adapter->imt, hw->hw_addr + REG_IRQ_MODU_TIMER_INIT); - iowrite32(MASTER_CTRL_ITIMER_EN, hw->hw_addr + REG_MASTER_CTRL); + /* + * Need to parse media_type and set up + * the appropriate PHY registers. + */ + switch (hw->media_type) { + case MEDIA_TYPE_AUTO_SENSOR: + mii_autoneg_adv_reg |= (MII_AR_10T_HD_CAPS | + MII_AR_10T_FD_CAPS | + MII_AR_100TX_HD_CAPS | + MII_AR_100TX_FD_CAPS); + mii_1000t_ctrl_reg |= MII_ATLX_CR_1000T_FD_CAPS; + break; - /* set Interrupt Clear Timer */ - iowrite16(adapter->ict, hw->hw_addr + REG_CMBDISDMA_TIMER); + case MEDIA_TYPE_1000M_FULL: + mii_1000t_ctrl_reg |= MII_ATLX_CR_1000T_FD_CAPS; + break; - /* set max frame size hw will accept */ - iowrite32(hw->max_frame_size, hw->hw_addr + REG_MTU); + case MEDIA_TYPE_100M_FULL: + mii_autoneg_adv_reg |= MII_AR_100TX_FD_CAPS; + break; - /* jumbo size & rrd retirement timer */ - value = (((u32) hw->rx_jumbo_th & RXQ_JMBOSZ_TH_MASK) - << RXQ_JMBOSZ_TH_SHIFT) | - (((u32) hw->rx_jumbo_lkah & RXQ_JMBO_LKAH_MASK) - << RXQ_JMBO_LKAH_SHIFT) | - (((u32) hw->rrd_ret_timer & RXQ_RRD_TIMER_MASK) - << RXQ_RRD_TIMER_SHIFT); - iowrite32(value, hw->hw_addr + REG_RXQ_JMBOSZ_RRDTIM); + case MEDIA_TYPE_100M_HALF: + mii_autoneg_adv_reg |= MII_AR_100TX_HD_CAPS; + break; - /* Flow Control */ - switch (hw->dev_rev) { - case 0x8001: - case 0x9001: - case 0x9002: - case 0x9003: - set_flow_ctrl_old(adapter); + case MEDIA_TYPE_10M_FULL: + mii_autoneg_adv_reg |= MII_AR_10T_FD_CAPS; break; + default: - set_flow_ctrl_new(hw); + mii_autoneg_adv_reg |= MII_AR_10T_HD_CAPS; break; } - /* config TXQ */ - value = (((u32) hw->tpd_burst & TXQ_CTRL_TPD_BURST_NUM_MASK) - << TXQ_CTRL_TPD_BURST_NUM_SHIFT) | - (((u32) hw->txf_burst & TXQ_CTRL_TXF_BURST_NUM_MASK) - << TXQ_CTRL_TXF_BURST_NUM_SHIFT) | - (((u32) hw->tpd_fetch_th & TXQ_CTRL_TPD_FETCH_TH_MASK) - << TXQ_CTRL_TPD_FETCH_TH_SHIFT) | TXQ_CTRL_ENH_MODE | - TXQ_CTRL_EN; - iowrite32(value, hw->hw_addr + REG_TXQ_CTRL); - - /* min tpd fetch gap & tx jumbo packet size threshold for taskoffload */ - value = (((u32) hw->tx_jumbo_task_th & TX_JUMBO_TASK_TH_MASK) - << TX_JUMBO_TASK_TH_SHIFT) | - (((u32) hw->tpd_fetch_gap & TX_TPD_MIN_IPG_MASK) - << TX_TPD_MIN_IPG_SHIFT); - iowrite32(value, hw->hw_addr + REG_TX_JUMBO_TASK_TH_TPD_IPG); - - /* config RXQ */ - value = (((u32) hw->rfd_burst & RXQ_CTRL_RFD_BURST_NUM_MASK) - << RXQ_CTRL_RFD_BURST_NUM_SHIFT) | - (((u32) hw->rrd_burst & RXQ_CTRL_RRD_BURST_THRESH_MASK) - << RXQ_CTRL_RRD_BURST_THRESH_SHIFT) | - (((u32) hw->rfd_fetch_gap & RXQ_CTRL_RFD_PREF_MIN_IPG_MASK) - << RXQ_CTRL_RFD_PREF_MIN_IPG_SHIFT) | RXQ_CTRL_CUT_THRU_EN | - RXQ_CTRL_EN; - iowrite32(value, hw->hw_addr + REG_RXQ_CTRL); - - /* config DMA Engine */ - value = ((((u32) hw->dmar_block) & DMA_CTRL_DMAR_BURST_LEN_MASK) - << DMA_CTRL_DMAR_BURST_LEN_SHIFT) | - ((((u32) hw->dmaw_block) & DMA_CTRL_DMAW_BURST_LEN_MASK) - << DMA_CTRL_DMAW_BURST_LEN_SHIFT) | DMA_CTRL_DMAR_EN | - DMA_CTRL_DMAW_EN; - value |= (u32) hw->dma_ord; - if (atl1_rcb_128 == hw->rcb_value) - value |= DMA_CTRL_RCB_VALUE; - iowrite32(value, hw->hw_addr + REG_DMA_CTRL); + /* flow control fixed to enable all */ + mii_autoneg_adv_reg |= (MII_AR_ASM_DIR | MII_AR_PAUSE); - /* config CMB / SMB */ - value = (hw->cmb_tpd > adapter->tpd_ring.count) ? - hw->cmb_tpd : adapter->tpd_ring.count; - value <<= 16; - value |= hw->cmb_rrd; - iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TH); - value = hw->cmb_rx_timer | ((u32) hw->cmb_tx_timer << 16); - iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TIMER); - iowrite32(hw->smb_timer, hw->hw_addr + REG_SMB_TIMER); + hw->mii_autoneg_adv_reg = mii_autoneg_adv_reg; + hw->mii_1000t_ctrl_reg = mii_1000t_ctrl_reg; - /* --- enable CMB / SMB */ - value = CSMB_CTRL_CMB_EN | CSMB_CTRL_SMB_EN; - iowrite32(value, hw->hw_addr + REG_CSMB_CTRL); + ret_val = atl1_write_phy_reg(hw, MII_ADVERTISE, mii_autoneg_adv_reg); + if (ret_val) + return ret_val; - value = ioread32(adapter->hw.hw_addr + REG_ISR); - if (unlikely((value & ISR_PHY_LINKDOWN) != 0)) - value = 1; /* config failed */ - else - value = 0; + ret_val = atl1_write_phy_reg(hw, MII_ATLX_CR, mii_1000t_ctrl_reg); + if (ret_val) + return ret_val; - /* clear all interrupt status */ - iowrite32(0x3fffffff, adapter->hw.hw_addr + REG_ISR); - iowrite32(0, adapter->hw.hw_addr + REG_ISR); - return value; + return 0; } /* - * atl1_pcie_patch - Patch for PCIE module + * Configures link settings. + * hw - Struct containing variables accessed by shared code + * Assumes the hardware has previously been reset and the + * transmitter and receiver are not enabled. */ -static void atl1_pcie_patch(struct atl1_adapter *adapter) +static s32 atl1_setup_link(struct atl1_hw *hw) { - u32 value; + struct pci_dev *pdev = hw->back->pdev; + struct atl1_adapter *adapter = hw->back; + s32 ret_val; - /* much vendor magic here */ - value = 0x6500; - iowrite32(value, adapter->hw.hw_addr + 0x12FC); - /* pcie flow control mode change */ - value = ioread32(adapter->hw.hw_addr + 0x1008); - value |= 0x8000; - iowrite32(value, adapter->hw.hw_addr + 0x1008); -} + /* + * Options: + * PHY will advertise value(s) parsed from + * autoneg_advertised and fc + * no matter what autoneg is , We will not wait link result. + */ + ret_val = atl1_phy_setup_autoneg_adv(hw); + if (ret_val) { + if (netif_msg_link(adapter)) + dev_dbg(&pdev->dev, + "error setting up autonegotiation\n"); + return ret_val; + } + /* SW.Reset , En-Auto-Neg if needed */ + ret_val = atl1_phy_reset(hw); + if (ret_val) { + if (netif_msg_link(adapter)) + dev_dbg(&pdev->dev, "error resetting phy\n"); + return ret_val; + } + hw->phy_configured = true; + return ret_val; +} -/* - * When ACPI resume on some VIA MotherBoard, the Interrupt Disable bit/0x400 - * on PCI Command register is disable. - * The function enable this bit. - * Brackett, 2006/03/15 - */ -static void atl1_via_workaround(struct atl1_adapter *adapter) +static void atl1_init_flash_opcode(struct atl1_hw *hw) { - unsigned long value; + if (hw->flash_vendor >= ARRAY_SIZE(flash_table)) + /* Atmel */ + hw->flash_vendor = 0; - value = ioread16(adapter->hw.hw_addr + PCI_COMMAND); - if (value & PCI_COMMAND_INTX_DISABLE) - value &= ~PCI_COMMAND_INTX_DISABLE; - iowrite32(value, adapter->hw.hw_addr + PCI_COMMAND); + /* Init OP table */ + iowrite8(flash_table[hw->flash_vendor].cmd_program, + hw->hw_addr + REG_SPI_FLASH_OP_PROGRAM); + iowrite8(flash_table[hw->flash_vendor].cmd_sector_erase, + hw->hw_addr + REG_SPI_FLASH_OP_SC_ERASE); + iowrite8(flash_table[hw->flash_vendor].cmd_chip_erase, + hw->hw_addr + REG_SPI_FLASH_OP_CHIP_ERASE); + iowrite8(flash_table[hw->flash_vendor].cmd_rdid, + hw->hw_addr + REG_SPI_FLASH_OP_RDID); + iowrite8(flash_table[hw->flash_vendor].cmd_wren, + hw->hw_addr + REG_SPI_FLASH_OP_WREN); + iowrite8(flash_table[hw->flash_vendor].cmd_rdsr, + hw->hw_addr + REG_SPI_FLASH_OP_RDSR); + iowrite8(flash_table[hw->flash_vendor].cmd_wrsr, + hw->hw_addr + REG_SPI_FLASH_OP_WRSR); + iowrite8(flash_table[hw->flash_vendor].cmd_read, + hw->hw_addr + REG_SPI_FLASH_OP_READ); } -static void atl1_inc_smb(struct atl1_adapter *adapter) +/* + * Performs basic configuration of the adapter. + * hw - Struct containing variables accessed by shared code + * Assumes that the controller has previously been reset and is in a + * post-reset uninitialized state. Initializes multicast table, + * and Calls routines to setup link + * Leaves the transmit and receive units disabled and uninitialized. + */ +static s32 atl1_init_hw(struct atl1_hw *hw) { - struct stats_msg_block *smb = adapter->smb.smb; - - /* Fill out the OS statistics structure */ - adapter->soft_stats.rx_packets += smb->rx_ok; - adapter->soft_stats.tx_packets += smb->tx_ok; - adapter->soft_stats.rx_bytes += smb->rx_byte_cnt; - adapter->soft_stats.tx_bytes += smb->tx_byte_cnt; - adapter->soft_stats.multicast += smb->rx_mcast; - adapter->soft_stats.collisions += (smb->tx_1_col + smb->tx_2_col * 2 + - smb->tx_late_col + smb->tx_abort_col * adapter->hw.max_retry); - - /* Rx Errors */ - adapter->soft_stats.rx_errors += (smb->rx_frag + smb->rx_fcs_err + - smb->rx_len_err + smb->rx_sz_ov + smb->rx_rxf_ov + - smb->rx_rrd_ov + smb->rx_align_err); - adapter->soft_stats.rx_fifo_errors += smb->rx_rxf_ov; - adapter->soft_stats.rx_length_errors += smb->rx_len_err; - adapter->soft_stats.rx_crc_errors += smb->rx_fcs_err; - adapter->soft_stats.rx_frame_errors += smb->rx_align_err; - adapter->soft_stats.rx_missed_errors += (smb->rx_rrd_ov + - smb->rx_rxf_ov); - - adapter->soft_stats.rx_pause += smb->rx_pause; - adapter->soft_stats.rx_rrd_ov += smb->rx_rrd_ov; - adapter->soft_stats.rx_trunc += smb->rx_sz_ov; + u32 ret_val = 0; - /* Tx Errors */ - adapter->soft_stats.tx_errors += (smb->tx_late_col + - smb->tx_abort_col + smb->tx_underrun + smb->tx_trunc); - adapter->soft_stats.tx_fifo_errors += smb->tx_underrun; - adapter->soft_stats.tx_aborted_errors += smb->tx_abort_col; - adapter->soft_stats.tx_window_errors += smb->tx_late_col; + /* Zero out the Multicast HASH table */ + iowrite32(0, hw->hw_addr + REG_RX_HASH_TABLE); + /* clear the old settings from the multicast hash table */ + iowrite32(0, (hw->hw_addr + REG_RX_HASH_TABLE) + (1 << 2)); - adapter->soft_stats.excecol += smb->tx_abort_col; - adapter->soft_stats.deffer += smb->tx_defer; - adapter->soft_stats.scc += smb->tx_1_col; - adapter->soft_stats.mcc += smb->tx_2_col; - adapter->soft_stats.latecol += smb->tx_late_col; - adapter->soft_stats.tx_underun += smb->tx_underrun; - adapter->soft_stats.tx_trunc += smb->tx_trunc; - adapter->soft_stats.tx_pause += smb->tx_pause; + atl1_init_flash_opcode(hw); - adapter->net_stats.rx_packets = adapter->soft_stats.rx_packets; - adapter->net_stats.tx_packets = adapter->soft_stats.tx_packets; - adapter->net_stats.rx_bytes = adapter->soft_stats.rx_bytes; - adapter->net_stats.tx_bytes = adapter->soft_stats.tx_bytes; - adapter->net_stats.multicast = adapter->soft_stats.multicast; - adapter->net_stats.collisions = adapter->soft_stats.collisions; - adapter->net_stats.rx_errors = adapter->soft_stats.rx_errors; - adapter->net_stats.rx_over_errors = - adapter->soft_stats.rx_missed_errors; - adapter->net_stats.rx_length_errors = - adapter->soft_stats.rx_length_errors; - adapter->net_stats.rx_crc_errors = adapter->soft_stats.rx_crc_errors; - adapter->net_stats.rx_frame_errors = - adapter->soft_stats.rx_frame_errors; - adapter->net_stats.rx_fifo_errors = adapter->soft_stats.rx_fifo_errors; - adapter->net_stats.rx_missed_errors = - adapter->soft_stats.rx_missed_errors; - adapter->net_stats.tx_errors = adapter->soft_stats.tx_errors; - adapter->net_stats.tx_fifo_errors = adapter->soft_stats.tx_fifo_errors; - adapter->net_stats.tx_aborted_errors = - adapter->soft_stats.tx_aborted_errors; - adapter->net_stats.tx_window_errors = - adapter->soft_stats.tx_window_errors; - adapter->net_stats.tx_carrier_errors = - adapter->soft_stats.tx_carrier_errors; + if (!hw->phy_configured) { + /* enable GPHY LinkChange Interrrupt */ + ret_val = atl1_write_phy_reg(hw, 18, 0xC00); + if (ret_val) + return ret_val; + /* make PHY out of power-saving state */ + ret_val = atl1_phy_leave_power_saving(hw); + if (ret_val) + return ret_val; + /* Call a subroutine to configure the link */ + ret_val = atl1_setup_link(hw); + } + return ret_val; } -static void atl1_update_mailbox(struct atl1_adapter *adapter) +/* + * Detects the current speed and duplex settings of the hardware. + * hw - Struct containing variables accessed by shared code + * speed - Speed of the connection + * duplex - Duplex setting of the connection + */ +static s32 atl1_get_speed_and_duplex(struct atl1_hw *hw, u16 *speed, u16 *duplex) { - unsigned long flags; - u32 tpd_next_to_use; - u32 rfd_next_to_use; - u32 rrd_next_to_clean; - u32 value; - - spin_lock_irqsave(&adapter->mb_lock, flags); - - tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use); - rfd_next_to_use = atomic_read(&adapter->rfd_ring.next_to_use); - rrd_next_to_clean = atomic_read(&adapter->rrd_ring.next_to_clean); - - value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) << - MB_RFD_PROD_INDX_SHIFT) | - ((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) << - MB_RRD_CONS_INDX_SHIFT) | - ((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) << - MB_TPD_PROD_INDX_SHIFT); - iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX); + struct pci_dev *pdev = hw->back->pdev; + struct atl1_adapter *adapter = hw->back; + s32 ret_val; + u16 phy_data; - spin_unlock_irqrestore(&adapter->mb_lock, flags); -} + /* ; --- Read PHY Specific Status Register (17) */ + ret_val = atl1_read_phy_reg(hw, MII_ATLX_PSSR, &phy_data); + if (ret_val) + return ret_val; -static void atl1_clean_alloc_flag(struct atl1_adapter *adapter, - struct rx_return_desc *rrd, u16 offset) -{ - struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring; + if (!(phy_data & MII_ATLX_PSSR_SPD_DPLX_RESOLVED)) + return ATLX_ERR_PHY_RES; - while (rfd_ring->next_to_clean != (rrd->buf_indx + offset)) { - rfd_ring->buffer_info[rfd_ring->next_to_clean].alloced = 0; - if (++rfd_ring->next_to_clean == rfd_ring->count) { - rfd_ring->next_to_clean = 0; - } + switch (phy_data & MII_ATLX_PSSR_SPEED) { + case MII_ATLX_PSSR_1000MBS: + *speed = SPEED_1000; + break; + case MII_ATLX_PSSR_100MBS: + *speed = SPEED_100; + break; + case MII_ATLX_PSSR_10MBS: + *speed = SPEED_10; + break; + default: + if (netif_msg_hw(adapter)) + dev_dbg(&pdev->dev, "error getting speed\n"); + return ATLX_ERR_PHY_SPEED; + break; } + if (phy_data & MII_ATLX_PSSR_DPLX) + *duplex = FULL_DUPLEX; + else + *duplex = HALF_DUPLEX; + + return 0; } -static void atl1_update_rfd_index(struct atl1_adapter *adapter, - struct rx_return_desc *rrd) +void atl1_set_mac_addr(struct atl1_hw *hw) { - u16 num_buf; - - num_buf = (rrd->xsz.xsum_sz.pkt_size + adapter->rx_buffer_len - 1) / - adapter->rx_buffer_len; - if (rrd->num_buf == num_buf) - /* clean alloc flag for bad rrd */ - atl1_clean_alloc_flag(adapter, rrd, num_buf); + u32 value; + /* + * 00-0B-6A-F6-00-DC + * 0: 6AF600DC 1: 000B + * low dword + */ + value = (((u32) hw->mac_addr[2]) << 24) | + (((u32) hw->mac_addr[3]) << 16) | + (((u32) hw->mac_addr[4]) << 8) | (((u32) hw->mac_addr[5])); + iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR); + /* high dword */ + value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1])); + iowrite32(value, (hw->hw_addr + REG_MAC_STA_ADDR) + (1 << 2)); } -static void atl1_rx_checksum(struct atl1_adapter *adapter, - struct rx_return_desc *rrd, struct sk_buff *skb) +/* + * atl1_sw_init - Initialize general software structures (struct atl1_adapter) + * @adapter: board private structure to initialize + * + * atl1_sw_init initializes the Adapter private data structure. + * Fields are initialized based on PCI device information and + * OS network device settings (MTU size). + */ +static int __devinit atl1_sw_init(struct atl1_adapter *adapter) { - struct pci_dev *pdev = adapter->pdev; + struct atl1_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; - skb->ip_summed = CHECKSUM_NONE; + hw->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; + hw->min_frame_size = ETH_ZLEN + ETH_FCS_LEN; - if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) { - if (rrd->err_flg & (ERR_FLAG_CRC | ERR_FLAG_TRUNC | - ERR_FLAG_CODE | ERR_FLAG_OV)) { - adapter->hw_csum_err++; - if (netif_msg_rx_err(adapter)) - dev_printk(KERN_DEBUG, &pdev->dev, - "rx checksum error\n"); - return; - } - } + adapter->wol = 0; + adapter->rx_buffer_len = (hw->max_frame_size + 7) & ~7; + adapter->ict = 50000; /* 100ms */ + adapter->link_speed = SPEED_0; /* hardware init */ + adapter->link_duplex = FULL_DUPLEX; - /* not IPv4 */ - if (!(rrd->pkt_flg & PACKET_FLAG_IPV4)) - /* checksum is invalid, but it's not an IPv4 pkt, so ok */ - return; + hw->phy_configured = false; + hw->preamble_len = 7; + hw->ipgt = 0x60; + hw->min_ifg = 0x50; + hw->ipgr1 = 0x40; + hw->ipgr2 = 0x60; + hw->max_retry = 0xf; + hw->lcol = 0x37; + hw->jam_ipg = 7; + hw->rfd_burst = 8; + hw->rrd_burst = 8; + hw->rfd_fetch_gap = 1; + hw->rx_jumbo_th = adapter->rx_buffer_len / 8; + hw->rx_jumbo_lkah = 1; + hw->rrd_ret_timer = 16; + hw->tpd_burst = 4; + hw->tpd_fetch_th = 16; + hw->txf_burst = 0x100; + hw->tx_jumbo_task_th = (hw->max_frame_size + 7) >> 3; + hw->tpd_fetch_gap = 1; + hw->rcb_value = atl1_rcb_64; + hw->dma_ord = atl1_dma_ord_enh; + hw->dmar_block = atl1_dma_req_256; + hw->dmaw_block = atl1_dma_req_256; + hw->cmb_rrd = 4; + hw->cmb_tpd = 4; + hw->cmb_rx_timer = 1; /* about 2us */ + hw->cmb_tx_timer = 1; /* about 2us */ + hw->smb_timer = 100000; /* about 200ms */ - /* IPv4 packet */ - if (likely(!(rrd->err_flg & - (ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM)))) { - skb->ip_summed = CHECKSUM_UNNECESSARY; - adapter->hw_csum_good++; - return; - } + spin_lock_init(&adapter->lock); + spin_lock_init(&adapter->mb_lock); - /* IPv4, but hardware thinks its checksum is wrong */ - if (netif_msg_rx_err(adapter)) - dev_printk(KERN_DEBUG, &pdev->dev, - "hw csum wrong, pkt_flag:%x, err_flag:%x\n", - rrd->pkt_flg, rrd->err_flg); - skb->ip_summed = CHECKSUM_COMPLETE; - skb->csum = htons(rrd->xsz.xsum_sz.rx_chksum); - adapter->hw_csum_err++; - return; + return 0; +} + +static int mdio_read(struct net_device *netdev, int phy_id, int reg_num) +{ + struct atl1_adapter *adapter = netdev_priv(netdev); + u16 result; + + atl1_read_phy_reg(&adapter->hw, reg_num & 0x1f, &result); + + return result; +} + +static void mdio_write(struct net_device *netdev, int phy_id, int reg_num, + int val) +{ + struct atl1_adapter *adapter = netdev_priv(netdev); + + atl1_write_phy_reg(&adapter->hw, reg_num, val); } /* - * atl1_alloc_rx_buffers - Replace used receive buffers - * @adapter: address of board private structure + * atl1_mii_ioctl - + * @netdev: + * @ifreq: + * @cmd: */ -static u16 atl1_alloc_rx_buffers(struct atl1_adapter *adapter) +static int atl1_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) +{ + struct atl1_adapter *adapter = netdev_priv(netdev); + unsigned long flags; + int retval; + + if (!netif_running(netdev)) + return -EINVAL; + + spin_lock_irqsave(&adapter->lock, flags); + retval = generic_mii_ioctl(&adapter->mii, if_mii(ifr), cmd, NULL); + spin_unlock_irqrestore(&adapter->lock, flags); + + return retval; +} + +/* + * atl1_setup_mem_resources - allocate Tx / RX descriptor resources + * @adapter: board private structure + * + * Return 0 on success, negative on failure + */ +static s32 atl1_setup_ring_resources(struct atl1_adapter *adapter) { + struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring; + struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring; + struct atl1_ring_header *ring_header = &adapter->ring_header; struct pci_dev *pdev = adapter->pdev; - struct page *page; - unsigned long offset; - struct atl1_buffer *buffer_info, *next_info; - struct sk_buff *skb; - u16 num_alloc = 0; - u16 rfd_next_to_use, next_next; - struct rx_free_desc *rfd_desc; + int size; + u8 offset = 0; - next_next = rfd_next_to_use = atomic_read(&rfd_ring->next_to_use); - if (++next_next == rfd_ring->count) - next_next = 0; - buffer_info = &rfd_ring->buffer_info[rfd_next_to_use]; - next_info = &rfd_ring->buffer_info[next_next]; + size = sizeof(struct atl1_buffer) * (tpd_ring->count + rfd_ring->count); + tpd_ring->buffer_info = kzalloc(size, GFP_KERNEL); + if (unlikely(!tpd_ring->buffer_info)) { + if (netif_msg_drv(adapter)) + dev_err(&pdev->dev, "kzalloc failed , size = D%d\n", + size); + goto err_nomem; + } + rfd_ring->buffer_info = + (struct atl1_buffer *)(tpd_ring->buffer_info + tpd_ring->count); - while (!buffer_info->alloced && !next_info->alloced) { - if (buffer_info->skb) { - buffer_info->alloced = 1; - goto next; - } + /* + * real ring DMA buffer + * each ring/block may need up to 8 bytes for alignment, hence the + * additional 40 bytes tacked onto the end. + */ + ring_header->size = size = + sizeof(struct tx_packet_desc) * tpd_ring->count + + sizeof(struct rx_free_desc) * rfd_ring->count + + sizeof(struct rx_return_desc) * rrd_ring->count + + sizeof(struct coals_msg_block) + + sizeof(struct stats_msg_block) + + 40; - rfd_desc = ATL1_RFD_DESC(rfd_ring, rfd_next_to_use); + ring_header->desc = pci_alloc_consistent(pdev, ring_header->size, + &ring_header->dma); + if (unlikely(!ring_header->desc)) { + if (netif_msg_drv(adapter)) + dev_err(&pdev->dev, "pci_alloc_consistent failed\n"); + goto err_nomem; + } - skb = dev_alloc_skb(adapter->rx_buffer_len + NET_IP_ALIGN); - if (unlikely(!skb)) { - /* Better luck next round */ - adapter->net_stats.rx_dropped++; - break; - } + memset(ring_header->desc, 0, ring_header->size); - /* - * Make buffer alignment 2 beyond a 16 byte boundary - * this will result in a 16 byte aligned IP header after - * the 14 byte MAC header is removed - */ - skb_reserve(skb, NET_IP_ALIGN); + /* init TPD ring */ + tpd_ring->dma = ring_header->dma; + offset = (tpd_ring->dma & 0x7) ? (8 - (ring_header->dma & 0x7)) : 0; + tpd_ring->dma += offset; + tpd_ring->desc = (u8 *) ring_header->desc + offset; + tpd_ring->size = sizeof(struct tx_packet_desc) * tpd_ring->count; - buffer_info->alloced = 1; - buffer_info->skb = skb; - buffer_info->length = (u16) adapter->rx_buffer_len; - page = virt_to_page(skb->data); - offset = (unsigned long)skb->data & ~PAGE_MASK; - buffer_info->dma = pci_map_page(pdev, page, offset, - adapter->rx_buffer_len, - PCI_DMA_FROMDEVICE); - rfd_desc->buffer_addr = cpu_to_le64(buffer_info->dma); - rfd_desc->buf_len = cpu_to_le16(adapter->rx_buffer_len); - rfd_desc->coalese = 0; + /* init RFD ring */ + rfd_ring->dma = tpd_ring->dma + tpd_ring->size; + offset = (rfd_ring->dma & 0x7) ? (8 - (rfd_ring->dma & 0x7)) : 0; + rfd_ring->dma += offset; + rfd_ring->desc = (u8 *) tpd_ring->desc + (tpd_ring->size + offset); + rfd_ring->size = sizeof(struct rx_free_desc) * rfd_ring->count; -next: - rfd_next_to_use = next_next; - if (unlikely(++next_next == rfd_ring->count)) - next_next = 0; - buffer_info = &rfd_ring->buffer_info[rfd_next_to_use]; - next_info = &rfd_ring->buffer_info[next_next]; - num_alloc++; - } + /* init RRD ring */ + rrd_ring->dma = rfd_ring->dma + rfd_ring->size; + offset = (rrd_ring->dma & 0x7) ? (8 - (rrd_ring->dma & 0x7)) : 0; + rrd_ring->dma += offset; + rrd_ring->desc = (u8 *) rfd_ring->desc + (rfd_ring->size + offset); + rrd_ring->size = sizeof(struct rx_return_desc) * rrd_ring->count; - if (num_alloc) { - /* - * Force memory writes to complete before letting h/w - * know there are new descriptors to fetch. (Only - * applicable for weak-ordered memory model archs, - * such as IA-64). - */ - wmb(); - atomic_set(&rfd_ring->next_to_use, (int)rfd_next_to_use); - } - return num_alloc; + + /* init CMB */ + adapter->cmb.dma = rrd_ring->dma + rrd_ring->size; + offset = (adapter->cmb.dma & 0x7) ? (8 - (adapter->cmb.dma & 0x7)) : 0; + adapter->cmb.dma += offset; + adapter->cmb.cmb = (struct coals_msg_block *) + ((u8 *) rrd_ring->desc + (rrd_ring->size + offset)); + + /* init SMB */ + adapter->smb.dma = adapter->cmb.dma + sizeof(struct coals_msg_block); + offset = (adapter->smb.dma & 0x7) ? (8 - (adapter->smb.dma & 0x7)) : 0; + adapter->smb.dma += offset; + adapter->smb.smb = (struct stats_msg_block *) + ((u8 *) adapter->cmb.cmb + + (sizeof(struct coals_msg_block) + offset)); + + return 0; + +err_nomem: + kfree(tpd_ring->buffer_info); + return -ENOMEM; } -static void atl1_intr_rx(struct atl1_adapter *adapter) +static void atl1_init_ring_ptrs(struct atl1_adapter *adapter) { - int i, count; - u16 length; - u16 rrd_next_to_clean; - u32 value; + struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring; struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring; - struct atl1_buffer *buffer_info; - struct rx_return_desc *rrd; - struct sk_buff *skb; - - count = 0; - rrd_next_to_clean = atomic_read(&rrd_ring->next_to_clean); + atomic_set(&tpd_ring->next_to_use, 0); + atomic_set(&tpd_ring->next_to_clean, 0); - while (1) { - rrd = ATL1_RRD_DESC(rrd_ring, rrd_next_to_clean); - i = 1; - if (likely(rrd->xsz.valid)) { /* packet valid */ -chk_rrd: - /* check rrd status */ - if (likely(rrd->num_buf == 1)) - goto rrd_ok; - else if (netif_msg_rx_err(adapter)) { - dev_printk(KERN_DEBUG, &adapter->pdev->dev, - "unexpected RRD buffer count\n"); - dev_printk(KERN_DEBUG, &adapter->pdev->dev, - "rx_buf_len = %d\n", - adapter->rx_buffer_len); - dev_printk(KERN_DEBUG, &adapter->pdev->dev, - "RRD num_buf = %d\n", - rrd->num_buf); - dev_printk(KERN_DEBUG, &adapter->pdev->dev, - "RRD pkt_len = %d\n", - rrd->xsz.xsum_sz.pkt_size); - dev_printk(KERN_DEBUG, &adapter->pdev->dev, - "RRD pkt_flg = 0x%08X\n", - rrd->pkt_flg); - dev_printk(KERN_DEBUG, &adapter->pdev->dev, - "RRD err_flg = 0x%08X\n", - rrd->err_flg); - dev_printk(KERN_DEBUG, &adapter->pdev->dev, - "RRD vlan_tag = 0x%08X\n", - rrd->vlan_tag); - } + rfd_ring->next_to_clean = 0; + atomic_set(&rfd_ring->next_to_use, 0); - /* rrd seems to be bad */ - if (unlikely(i-- > 0)) { - /* rrd may not be DMAed completely */ - udelay(1); - goto chk_rrd; - } - /* bad rrd */ - if (netif_msg_rx_err(adapter)) - dev_printk(KERN_DEBUG, &adapter->pdev->dev, - "bad RRD\n"); - /* see if update RFD index */ - if (rrd->num_buf > 1) - atl1_update_rfd_index(adapter, rrd); + rrd_ring->next_to_use = 0; + atomic_set(&rrd_ring->next_to_clean, 0); +} - /* update rrd */ - rrd->xsz.valid = 0; - if (++rrd_next_to_clean == rrd_ring->count) - rrd_next_to_clean = 0; - count++; - continue; - } else { /* current rrd still not be updated */ +/* + * atl1_clean_rx_ring - Free RFD Buffers + * @adapter: board private structure + */ +static void atl1_clean_rx_ring(struct atl1_adapter *adapter) +{ + struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring; + struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring; + struct atl1_buffer *buffer_info; + struct pci_dev *pdev = adapter->pdev; + unsigned long size; + unsigned int i; - break; + /* Free all the Rx ring sk_buffs */ + for (i = 0; i < rfd_ring->count; i++) { + buffer_info = &rfd_ring->buffer_info[i]; + if (buffer_info->dma) { + pci_unmap_page(pdev, buffer_info->dma, + buffer_info->length, PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; } -rrd_ok: - /* clean alloc flag for bad rrd */ - atl1_clean_alloc_flag(adapter, rrd, 0); - - buffer_info = &rfd_ring->buffer_info[rrd->buf_indx]; - if (++rfd_ring->next_to_clean == rfd_ring->count) - rfd_ring->next_to_clean = 0; - - /* update rrd next to clean */ - if (++rrd_next_to_clean == rrd_ring->count) - rrd_next_to_clean = 0; - count++; - - if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) { - if (!(rrd->err_flg & - (ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM - | ERR_FLAG_LEN))) { - /* packet error, don't need upstream */ - buffer_info->alloced = 0; - rrd->xsz.valid = 0; - continue; - } + if (buffer_info->skb) { + dev_kfree_skb(buffer_info->skb); + buffer_info->skb = NULL; } - - /* Good Receive */ - pci_unmap_page(adapter->pdev, buffer_info->dma, - buffer_info->length, PCI_DMA_FROMDEVICE); - skb = buffer_info->skb; - length = le16_to_cpu(rrd->xsz.xsum_sz.pkt_size); - - skb_put(skb, length - ETH_FCS_LEN); - - /* Receive Checksum Offload */ - atl1_rx_checksum(adapter, rrd, skb); - skb->protocol = eth_type_trans(skb, adapter->netdev); - - if (adapter->vlgrp && (rrd->pkt_flg & PACKET_FLAG_VLAN_INS)) { - u16 vlan_tag = (rrd->vlan_tag >> 4) | - ((rrd->vlan_tag & 7) << 13) | - ((rrd->vlan_tag & 8) << 9); - vlan_hwaccel_rx(skb, adapter->vlgrp, vlan_tag); - } else - netif_rx(skb); - - /* let protocol layer free skb */ - buffer_info->skb = NULL; - buffer_info->alloced = 0; - rrd->xsz.valid = 0; - - adapter->netdev->last_rx = jiffies; } - atomic_set(&rrd_ring->next_to_clean, rrd_next_to_clean); - - atl1_alloc_rx_buffers(adapter); + size = sizeof(struct atl1_buffer) * rfd_ring->count; + memset(rfd_ring->buffer_info, 0, size); - /* update mailbox ? */ - if (count) { - u32 tpd_next_to_use; - u32 rfd_next_to_use; + /* Zero out the descriptor ring */ + memset(rfd_ring->desc, 0, rfd_ring->size); - spin_lock(&adapter->mb_lock); + rfd_ring->next_to_clean = 0; + atomic_set(&rfd_ring->next_to_use, 0); - tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use); - rfd_next_to_use = - atomic_read(&adapter->rfd_ring.next_to_use); - rrd_next_to_clean = - atomic_read(&adapter->rrd_ring.next_to_clean); - value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) << - MB_RFD_PROD_INDX_SHIFT) | - ((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) << - MB_RRD_CONS_INDX_SHIFT) | - ((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) << - MB_TPD_PROD_INDX_SHIFT); - iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX); - spin_unlock(&adapter->mb_lock); - } + rrd_ring->next_to_use = 0; + atomic_set(&rrd_ring->next_to_clean, 0); } -static void atl1_intr_tx(struct atl1_adapter *adapter) +/* + * atl1_clean_tx_ring - Free Tx Buffers + * @adapter: board private structure + */ +static void atl1_clean_tx_ring(struct atl1_adapter *adapter) { struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; struct atl1_buffer *buffer_info; - u16 sw_tpd_next_to_clean; - u16 cmb_tpd_next_to_clean; - - sw_tpd_next_to_clean = atomic_read(&tpd_ring->next_to_clean); - cmb_tpd_next_to_clean = le16_to_cpu(adapter->cmb.cmb->tpd_cons_idx); - - while (cmb_tpd_next_to_clean != sw_tpd_next_to_clean) { - struct tx_packet_desc *tpd; + struct pci_dev *pdev = adapter->pdev; + unsigned long size; + unsigned int i; - tpd = ATL1_TPD_DESC(tpd_ring, sw_tpd_next_to_clean); - buffer_info = &tpd_ring->buffer_info[sw_tpd_next_to_clean]; + /* Free all the Tx ring sk_buffs */ + for (i = 0; i < tpd_ring->count; i++) { + buffer_info = &tpd_ring->buffer_info[i]; if (buffer_info->dma) { - pci_unmap_page(adapter->pdev, buffer_info->dma, - buffer_info->length, PCI_DMA_TODEVICE); + pci_unmap_page(pdev, buffer_info->dma, + buffer_info->length, PCI_DMA_TODEVICE); buffer_info->dma = 0; } + } + for (i = 0; i < tpd_ring->count; i++) { + buffer_info = &tpd_ring->buffer_info[i]; if (buffer_info->skb) { - dev_kfree_skb_irq(buffer_info->skb); + dev_kfree_skb_any(buffer_info->skb); buffer_info->skb = NULL; } - - if (++sw_tpd_next_to_clean == tpd_ring->count) - sw_tpd_next_to_clean = 0; } - atomic_set(&tpd_ring->next_to_clean, sw_tpd_next_to_clean); - if (netif_queue_stopped(adapter->netdev) - && netif_carrier_ok(adapter->netdev)) - netif_wake_queue(adapter->netdev); -} + size = sizeof(struct atl1_buffer) * tpd_ring->count; + memset(tpd_ring->buffer_info, 0, size); -static u16 atl1_tpd_avail(struct atl1_tpd_ring *tpd_ring) -{ - u16 next_to_clean = atomic_read(&tpd_ring->next_to_clean); - u16 next_to_use = atomic_read(&tpd_ring->next_to_use); - return ((next_to_clean > next_to_use) ? - next_to_clean - next_to_use - 1 : - tpd_ring->count + next_to_clean - next_to_use - 1); + /* Zero out the descriptor ring */ + memset(tpd_ring->desc, 0, tpd_ring->size); + + atomic_set(&tpd_ring->next_to_use, 0); + atomic_set(&tpd_ring->next_to_clean, 0); } -static int atl1_tso(struct atl1_adapter *adapter, struct sk_buff *skb, - struct tx_packet_desc *ptpd) +/* + * atl1_free_ring_resources - Free Tx / RX descriptor Resources + * @adapter: board private structure + * + * Free all transmit software resources + */ +static void atl1_free_ring_resources(struct atl1_adapter *adapter) { - /* spinlock held */ - u8 hdr_len, ip_off; - u32 real_len; - int err; + struct pci_dev *pdev = adapter->pdev; + struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; + struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring; + struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring; + struct atl1_ring_header *ring_header = &adapter->ring_header; - if (skb_shinfo(skb)->gso_size) { - if (skb_header_cloned(skb)) { - err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); - if (unlikely(err)) - return -1; - } + atl1_clean_tx_ring(adapter); + atl1_clean_rx_ring(adapter); - if (skb->protocol == ntohs(ETH_P_IP)) { - struct iphdr *iph = ip_hdr(skb); + kfree(tpd_ring->buffer_info); + pci_free_consistent(pdev, ring_header->size, ring_header->desc, + ring_header->dma); - real_len = (((unsigned char *)iph - skb->data) + - ntohs(iph->tot_len)); - if (real_len < skb->len) - pskb_trim(skb, real_len); - hdr_len = (skb_transport_offset(skb) + tcp_hdrlen(skb)); - if (skb->len == hdr_len) { - iph->check = 0; - tcp_hdr(skb)->check = - ~csum_tcpudp_magic(iph->saddr, - iph->daddr, tcp_hdrlen(skb), - IPPROTO_TCP, 0); - ptpd->word3 |= (iph->ihl & TPD_IPHL_MASK) << - TPD_IPHL_SHIFT; - ptpd->word3 |= ((tcp_hdrlen(skb) >> 2) & - TPD_TCPHDRLEN_MASK) << - TPD_TCPHDRLEN_SHIFT; - ptpd->word3 |= 1 << TPD_IP_CSUM_SHIFT; - ptpd->word3 |= 1 << TPD_TCP_CSUM_SHIFT; - return 1; - } + tpd_ring->buffer_info = NULL; + tpd_ring->desc = NULL; + tpd_ring->dma = 0; - iph->check = 0; - tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, - iph->daddr, 0, IPPROTO_TCP, 0); - ip_off = (unsigned char *)iph - - (unsigned char *) skb_network_header(skb); - if (ip_off == 8) /* 802.3-SNAP frame */ - ptpd->word3 |= 1 << TPD_ETHTYPE_SHIFT; - else if (ip_off != 0) - return -2; + rfd_ring->buffer_info = NULL; + rfd_ring->desc = NULL; + rfd_ring->dma = 0; - ptpd->word3 |= (iph->ihl & TPD_IPHL_MASK) << - TPD_IPHL_SHIFT; - ptpd->word3 |= ((tcp_hdrlen(skb) >> 2) & - TPD_TCPHDRLEN_MASK) << TPD_TCPHDRLEN_SHIFT; - ptpd->word3 |= (skb_shinfo(skb)->gso_size & - TPD_MSS_MASK) << TPD_MSS_SHIFT; - ptpd->word3 |= 1 << TPD_SEGMENT_EN_SHIFT; - return 3; - } - } - return false; + rrd_ring->desc = NULL; + rrd_ring->dma = 0; } -static int atl1_tx_csum(struct atl1_adapter *adapter, struct sk_buff *skb, - struct tx_packet_desc *ptpd) +static void atl1_setup_mac_ctrl(struct atl1_adapter *adapter) { - u8 css, cso; - - if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) { - css = (u8) (skb->csum_start - skb_headroom(skb)); - cso = css + (u8) skb->csum_offset; - if (unlikely(css & 0x1)) { - /* L1 hardware requires an even number here */ - if (netif_msg_tx_err(adapter)) - dev_printk(KERN_DEBUG, &adapter->pdev->dev, - "payload offset not an even number\n"); - return -1; - } - ptpd->word3 |= (css & TPD_PLOADOFFSET_MASK) << - TPD_PLOADOFFSET_SHIFT; - ptpd->word3 |= (cso & TPD_CCSUMOFFSET_MASK) << - TPD_CCSUMOFFSET_SHIFT; - ptpd->word3 |= 1 << TPD_CUST_CSUM_EN_SHIFT; - return true; - } - return 0; + u32 value; + struct atl1_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + /* Config MAC CTRL Register */ + value = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN; + /* duplex */ + if (FULL_DUPLEX == adapter->link_duplex) + value |= MAC_CTRL_DUPLX; + /* speed */ + value |= ((u32) ((SPEED_1000 == adapter->link_speed) ? + MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100) << + MAC_CTRL_SPEED_SHIFT); + /* flow control */ + value |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW); + /* PAD & CRC */ + value |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD); + /* preamble length */ + value |= (((u32) adapter->hw.preamble_len + & MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT); + /* vlan */ + if (adapter->vlgrp) + value |= MAC_CTRL_RMV_VLAN; + /* rx checksum + if (adapter->rx_csum) + value |= MAC_CTRL_RX_CHKSUM_EN; + */ + /* filter mode */ + value |= MAC_CTRL_BC_EN; + if (netdev->flags & IFF_PROMISC) + value |= MAC_CTRL_PROMIS_EN; + else if (netdev->flags & IFF_ALLMULTI) + value |= MAC_CTRL_MC_ALL_EN; + /* value |= MAC_CTRL_LOOPBACK; */ + iowrite32(value, hw->hw_addr + REG_MAC_CTRL); } -static void atl1_tx_map(struct atl1_adapter *adapter, struct sk_buff *skb, - struct tx_packet_desc *ptpd) +static u32 atl1_check_link(struct atl1_adapter *adapter) { - /* spinlock held */ - struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; - struct atl1_buffer *buffer_info; - u16 buf_len = skb->len; - struct page *page; - unsigned long offset; - unsigned int nr_frags; - unsigned int f; - int retval; - u16 next_to_use; - u16 data_len; - u8 hdr_len; - - buf_len -= skb->data_len; - nr_frags = skb_shinfo(skb)->nr_frags; - next_to_use = atomic_read(&tpd_ring->next_to_use); - buffer_info = &tpd_ring->buffer_info[next_to_use]; - if (unlikely(buffer_info->skb)) - BUG(); - /* put skb in last TPD */ - buffer_info->skb = NULL; - - retval = (ptpd->word3 >> TPD_SEGMENT_EN_SHIFT) & TPD_SEGMENT_EN_MASK; - if (retval) { - /* TSO */ - hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); - buffer_info->length = hdr_len; - page = virt_to_page(skb->data); - offset = (unsigned long)skb->data & ~PAGE_MASK; - buffer_info->dma = pci_map_page(adapter->pdev, page, - offset, hdr_len, - PCI_DMA_TODEVICE); - - if (++next_to_use == tpd_ring->count) - next_to_use = 0; - - if (buf_len > hdr_len) { - int i, nseg; - - data_len = buf_len - hdr_len; - nseg = (data_len + ATL1_MAX_TX_BUF_LEN - 1) / - ATL1_MAX_TX_BUF_LEN; - for (i = 0; i < nseg; i++) { - buffer_info = - &tpd_ring->buffer_info[next_to_use]; - buffer_info->skb = NULL; - buffer_info->length = - (ATL1_MAX_TX_BUF_LEN >= - data_len) ? ATL1_MAX_TX_BUF_LEN : data_len; - data_len -= buffer_info->length; - page = virt_to_page(skb->data + - (hdr_len + i * ATL1_MAX_TX_BUF_LEN)); - offset = (unsigned long)(skb->data + - (hdr_len + i * ATL1_MAX_TX_BUF_LEN)) & - ~PAGE_MASK; - buffer_info->dma = pci_map_page(adapter->pdev, - page, offset, buffer_info->length, - PCI_DMA_TODEVICE); - if (++next_to_use == tpd_ring->count) - next_to_use = 0; - } - } - } else { - /* not TSO */ - buffer_info->length = buf_len; - page = virt_to_page(skb->data); - offset = (unsigned long)skb->data & ~PAGE_MASK; - buffer_info->dma = pci_map_page(adapter->pdev, page, - offset, buf_len, PCI_DMA_TODEVICE); - if (++next_to_use == tpd_ring->count) - next_to_use = 0; - } - - for (f = 0; f < nr_frags; f++) { - struct skb_frag_struct *frag; - u16 i, nseg; - - frag = &skb_shinfo(skb)->frags[f]; - buf_len = frag->size; - - nseg = (buf_len + ATL1_MAX_TX_BUF_LEN - 1) / - ATL1_MAX_TX_BUF_LEN; - for (i = 0; i < nseg; i++) { - buffer_info = &tpd_ring->buffer_info[next_to_use]; - if (unlikely(buffer_info->skb)) - BUG(); - buffer_info->skb = NULL; - buffer_info->length = (buf_len > ATL1_MAX_TX_BUF_LEN) ? - ATL1_MAX_TX_BUF_LEN : buf_len; - buf_len -= buffer_info->length; - buffer_info->dma = pci_map_page(adapter->pdev, - frag->page, - frag->page_offset + (i * ATL1_MAX_TX_BUF_LEN), - buffer_info->length, PCI_DMA_TODEVICE); + struct atl1_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 ret_val; + u16 speed, duplex, phy_data; + int reconfig = 0; - if (++next_to_use == tpd_ring->count) - next_to_use = 0; + /* MII_BMSR must read twice */ + atl1_read_phy_reg(hw, MII_BMSR, &phy_data); + atl1_read_phy_reg(hw, MII_BMSR, &phy_data); + if (!(phy_data & BMSR_LSTATUS)) { + /* link down */ + if (netif_carrier_ok(netdev)) { + /* old link state: Up */ + if (netif_msg_link(adapter)) + dev_info(&adapter->pdev->dev, "link is down\n"); + adapter->link_speed = SPEED_0; + netif_carrier_off(netdev); + netif_stop_queue(netdev); } + return 0; } - /* last tpd's buffer-info */ - buffer_info->skb = skb; -} - -static void atl1_tx_queue(struct atl1_adapter *adapter, u16 count, - struct tx_packet_desc *ptpd) -{ - /* spinlock held */ - struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; - struct atl1_buffer *buffer_info; - struct tx_packet_desc *tpd; - u16 j; - u32 val; - u16 next_to_use = (u16) atomic_read(&tpd_ring->next_to_use); - - for (j = 0; j < count; j++) { - buffer_info = &tpd_ring->buffer_info[next_to_use]; - tpd = ATL1_TPD_DESC(&adapter->tpd_ring, next_to_use); - if (tpd != ptpd) - memcpy(tpd, ptpd, sizeof(struct tx_packet_desc)); - tpd->buffer_addr = cpu_to_le64(buffer_info->dma); - tpd->word2 = (cpu_to_le16(buffer_info->length) & - TPD_BUFLEN_MASK) << TPD_BUFLEN_SHIFT; - - /* - * if this is the first packet in a TSO chain, set - * TPD_HDRFLAG, otherwise, clear it. - */ - val = (tpd->word3 >> TPD_SEGMENT_EN_SHIFT) & - TPD_SEGMENT_EN_MASK; - if (val) { - if (!j) - tpd->word3 |= 1 << TPD_HDRFLAG_SHIFT; - else - tpd->word3 &= ~(1 << TPD_HDRFLAG_SHIFT); - } - - if (j == (count - 1)) - tpd->word3 |= 1 << TPD_EOP_SHIFT; + /* Link Up */ + ret_val = atl1_get_speed_and_duplex(hw, &speed, &duplex); + if (ret_val) + return ret_val; - if (++next_to_use == tpd_ring->count) - next_to_use = 0; + switch (hw->media_type) { + case MEDIA_TYPE_1000M_FULL: + if (speed != SPEED_1000 || duplex != FULL_DUPLEX) + reconfig = 1; + break; + case MEDIA_TYPE_100M_FULL: + if (speed != SPEED_100 || duplex != FULL_DUPLEX) + reconfig = 1; + break; + case MEDIA_TYPE_100M_HALF: + if (speed != SPEED_100 || duplex != HALF_DUPLEX) + reconfig = 1; + break; + case MEDIA_TYPE_10M_FULL: + if (speed != SPEED_10 || duplex != FULL_DUPLEX) + reconfig = 1; + break; + case MEDIA_TYPE_10M_HALF: + if (speed != SPEED_10 || duplex != HALF_DUPLEX) + reconfig = 1; + break; } - /* - * Force memory writes to complete before letting h/w - * know there are new descriptors to fetch. (Only - * applicable for weak-ordered memory model archs, - * such as IA-64). - */ - wmb(); - atomic_set(&tpd_ring->next_to_use, next_to_use); -} - -static int atl1_xmit_frame(struct sk_buff *skb, struct net_device *netdev) -{ - struct atl1_adapter *adapter = netdev_priv(netdev); - struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; - int len = skb->len; - int tso; - int count = 1; - int ret_val; - struct tx_packet_desc *ptpd; - u16 frag_size; - u16 vlan_tag; - unsigned long flags; - unsigned int nr_frags = 0; - unsigned int mss = 0; - unsigned int f; - unsigned int proto_hdr_len; - - len -= skb->data_len; - - if (unlikely(skb->len <= 0)) { - dev_kfree_skb_any(skb); - return NETDEV_TX_OK; + /* link result is our setting */ + if (!reconfig) { + if (adapter->link_speed != speed + || adapter->link_duplex != duplex) { + adapter->link_speed = speed; + adapter->link_duplex = duplex; + atl1_setup_mac_ctrl(adapter); + if (netif_msg_link(adapter)) + dev_info(&adapter->pdev->dev, + "%s link is up %d Mbps %s\n", + netdev->name, adapter->link_speed, + adapter->link_duplex == FULL_DUPLEX ? + "full duplex" : "half duplex"); + } + if (!netif_carrier_ok(netdev)) { + /* Link down -> Up */ + netif_carrier_on(netdev); + netif_wake_queue(netdev); + } + return 0; } - nr_frags = skb_shinfo(skb)->nr_frags; - for (f = 0; f < nr_frags; f++) { - frag_size = skb_shinfo(skb)->frags[f].size; - if (frag_size) - count += (frag_size + ATL1_MAX_TX_BUF_LEN - 1) / - ATL1_MAX_TX_BUF_LEN; + /* change original link status */ + if (netif_carrier_ok(netdev)) { + adapter->link_speed = SPEED_0; + netif_carrier_off(netdev); + netif_stop_queue(netdev); } - mss = skb_shinfo(skb)->gso_size; - if (mss) { - if (skb->protocol == ntohs(ETH_P_IP)) { - proto_hdr_len = (skb_transport_offset(skb) + - tcp_hdrlen(skb)); - if (unlikely(proto_hdr_len > len)) { - dev_kfree_skb_any(skb); - return NETDEV_TX_OK; - } - /* need additional TPD ? */ - if (proto_hdr_len != len) - count += (len - proto_hdr_len + - ATL1_MAX_TX_BUF_LEN - 1) / - ATL1_MAX_TX_BUF_LEN; + if (hw->media_type != MEDIA_TYPE_AUTO_SENSOR && + hw->media_type != MEDIA_TYPE_1000M_FULL) { + switch (hw->media_type) { + case MEDIA_TYPE_100M_FULL: + phy_data = MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 | + MII_CR_RESET; + break; + case MEDIA_TYPE_100M_HALF: + phy_data = MII_CR_SPEED_100 | MII_CR_RESET; + break; + case MEDIA_TYPE_10M_FULL: + phy_data = + MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET; + break; + default: + /* MEDIA_TYPE_10M_HALF: */ + phy_data = MII_CR_SPEED_10 | MII_CR_RESET; + break; } + atl1_write_phy_reg(hw, MII_BMCR, phy_data); + return 0; } - if (!spin_trylock_irqsave(&adapter->lock, flags)) { - /* Can't get lock - tell upper layer to requeue */ - if (netif_msg_tx_queued(adapter)) - dev_printk(KERN_DEBUG, &adapter->pdev->dev, - "tx locked\n"); - return NETDEV_TX_LOCKED; + /* auto-neg, insert timer to re-config phy */ + if (!adapter->phy_timer_pending) { + adapter->phy_timer_pending = true; + mod_timer(&adapter->phy_config_timer, jiffies + 3 * HZ); } - if (atl1_tpd_avail(&adapter->tpd_ring) < count) { - /* not enough descriptors */ - netif_stop_queue(netdev); - spin_unlock_irqrestore(&adapter->lock, flags); - if (netif_msg_tx_queued(adapter)) - dev_printk(KERN_DEBUG, &adapter->pdev->dev, - "tx busy\n"); - return NETDEV_TX_BUSY; - } + return 0; +} - ptpd = ATL1_TPD_DESC(tpd_ring, - (u16) atomic_read(&tpd_ring->next_to_use)); - memset(ptpd, 0, sizeof(struct tx_packet_desc)); +static void set_flow_ctrl_old(struct atl1_adapter *adapter) +{ + u32 hi, lo, value; - if (adapter->vlgrp && vlan_tx_tag_present(skb)) { - vlan_tag = vlan_tx_tag_get(skb); - vlan_tag = (vlan_tag << 4) | (vlan_tag >> 13) | - ((vlan_tag >> 9) & 0x8); - ptpd->word3 |= 1 << TPD_INS_VL_TAG_SHIFT; - ptpd->word3 |= (vlan_tag & TPD_VL_TAGGED_MASK) << - TPD_VL_TAGGED_SHIFT; - } + /* RFD Flow Control */ + value = adapter->rfd_ring.count; + hi = value / 16; + if (hi < 2) + hi = 2; + lo = value * 7 / 8; - tso = atl1_tso(adapter, skb, ptpd); - if (tso < 0) { - spin_unlock_irqrestore(&adapter->lock, flags); - dev_kfree_skb_any(skb); - return NETDEV_TX_OK; - } + value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) | + ((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT); + iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RXF_PAUSE_THRESH); - if (!tso) { - ret_val = atl1_tx_csum(adapter, skb, ptpd); - if (ret_val < 0) { - spin_unlock_irqrestore(&adapter->lock, flags); - dev_kfree_skb_any(skb); - return NETDEV_TX_OK; - } - } + /* RRD Flow Control */ + value = adapter->rrd_ring.count; + lo = value / 16; + hi = value * 7 / 8; + if (lo < 2) + lo = 2; + value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) | + ((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT); + iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RRD_PAUSE_THRESH); +} - atl1_tx_map(adapter, skb, ptpd); - atl1_tx_queue(adapter, count, ptpd); - atl1_update_mailbox(adapter); - spin_unlock_irqrestore(&adapter->lock, flags); - netdev->trans_start = jiffies; - return NETDEV_TX_OK; +static void set_flow_ctrl_new(struct atl1_hw *hw) +{ + u32 hi, lo, value; + + /* RXF Flow Control */ + value = ioread32(hw->hw_addr + REG_SRAM_RXF_LEN); + lo = value / 16; + if (lo < 192) + lo = 192; + hi = value * 7 / 8; + if (hi < lo) + hi = lo + 16; + value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) | + ((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT); + iowrite32(value, hw->hw_addr + REG_RXQ_RXF_PAUSE_THRESH); + + /* RRD Flow Control */ + value = ioread32(hw->hw_addr + REG_SRAM_RRD_LEN); + lo = value / 8; + hi = value * 7 / 8; + if (lo < 2) + lo = 2; + if (hi < lo) + hi = lo + 3; + value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) | + ((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT); + iowrite32(value, hw->hw_addr + REG_RXQ_RRD_PAUSE_THRESH); } /* - * atl1_intr - Interrupt Handler - * @irq: interrupt number - * @data: pointer to a network interface device structure - * @pt_regs: CPU registers structure + * atl1_configure - Configure Transmit&Receive Unit after Reset + * @adapter: board private structure + * + * Configure the Tx /Rx unit of the MAC after a reset. */ -static irqreturn_t atl1_intr(int irq, void *data) +static u32 atl1_configure(struct atl1_adapter *adapter) { - struct atl1_adapter *adapter = netdev_priv(data); - u32 status; - u8 update_rx; - int max_ints = 10; + struct atl1_hw *hw = &adapter->hw; + u32 value; - status = adapter->cmb.cmb->int_stats; - if (!status) - return IRQ_NONE; + /* clear interrupt status */ + iowrite32(0xffffffff, adapter->hw.hw_addr + REG_ISR); - update_rx = 0; + /* set MAC Address */ + value = (((u32) hw->mac_addr[2]) << 24) | + (((u32) hw->mac_addr[3]) << 16) | + (((u32) hw->mac_addr[4]) << 8) | + (((u32) hw->mac_addr[5])); + iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR); + value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1])); + iowrite32(value, hw->hw_addr + (REG_MAC_STA_ADDR + 4)); - do { - /* clear CMB interrupt status at once */ - adapter->cmb.cmb->int_stats = 0; + /* tx / rx ring */ - if (status & ISR_GPHY) /* clear phy status */ - atlx_clear_phy_int(adapter); + /* HI base address */ + iowrite32((u32) ((adapter->tpd_ring.dma & 0xffffffff00000000ULL) >> 32), + hw->hw_addr + REG_DESC_BASE_ADDR_HI); + /* LO base address */ + iowrite32((u32) (adapter->rfd_ring.dma & 0x00000000ffffffffULL), + hw->hw_addr + REG_DESC_RFD_ADDR_LO); + iowrite32((u32) (adapter->rrd_ring.dma & 0x00000000ffffffffULL), + hw->hw_addr + REG_DESC_RRD_ADDR_LO); + iowrite32((u32) (adapter->tpd_ring.dma & 0x00000000ffffffffULL), + hw->hw_addr + REG_DESC_TPD_ADDR_LO); + iowrite32((u32) (adapter->cmb.dma & 0x00000000ffffffffULL), + hw->hw_addr + REG_DESC_CMB_ADDR_LO); + iowrite32((u32) (adapter->smb.dma & 0x00000000ffffffffULL), + hw->hw_addr + REG_DESC_SMB_ADDR_LO); + + /* element count */ + value = adapter->rrd_ring.count; + value <<= 16; + value += adapter->rfd_ring.count; + iowrite32(value, hw->hw_addr + REG_DESC_RFD_RRD_RING_SIZE); + iowrite32(adapter->tpd_ring.count, hw->hw_addr + + REG_DESC_TPD_RING_SIZE); + + /* Load Ptr */ + iowrite32(1, hw->hw_addr + REG_LOAD_PTR); + + /* config Mailbox */ + value = ((atomic_read(&adapter->tpd_ring.next_to_use) + & MB_TPD_PROD_INDX_MASK) << MB_TPD_PROD_INDX_SHIFT) | + ((atomic_read(&adapter->rrd_ring.next_to_clean) + & MB_RRD_CONS_INDX_MASK) << MB_RRD_CONS_INDX_SHIFT) | + ((atomic_read(&adapter->rfd_ring.next_to_use) + & MB_RFD_PROD_INDX_MASK) << MB_RFD_PROD_INDX_SHIFT); + iowrite32(value, hw->hw_addr + REG_MAILBOX); + + /* config IPG/IFG */ + value = (((u32) hw->ipgt & MAC_IPG_IFG_IPGT_MASK) + << MAC_IPG_IFG_IPGT_SHIFT) | + (((u32) hw->min_ifg & MAC_IPG_IFG_MIFG_MASK) + << MAC_IPG_IFG_MIFG_SHIFT) | + (((u32) hw->ipgr1 & MAC_IPG_IFG_IPGR1_MASK) + << MAC_IPG_IFG_IPGR1_SHIFT) | + (((u32) hw->ipgr2 & MAC_IPG_IFG_IPGR2_MASK) + << MAC_IPG_IFG_IPGR2_SHIFT); + iowrite32(value, hw->hw_addr + REG_MAC_IPG_IFG); + + /* config Half-Duplex Control */ + value = ((u32) hw->lcol & MAC_HALF_DUPLX_CTRL_LCOL_MASK) | + (((u32) hw->max_retry & MAC_HALF_DUPLX_CTRL_RETRY_MASK) + << MAC_HALF_DUPLX_CTRL_RETRY_SHIFT) | + MAC_HALF_DUPLX_CTRL_EXC_DEF_EN | + (0xa << MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT) | + (((u32) hw->jam_ipg & MAC_HALF_DUPLX_CTRL_JAMIPG_MASK) + << MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT); + iowrite32(value, hw->hw_addr + REG_MAC_HALF_DUPLX_CTRL); + + /* set Interrupt Moderator Timer */ + iowrite16(adapter->imt, hw->hw_addr + REG_IRQ_MODU_TIMER_INIT); + iowrite32(MASTER_CTRL_ITIMER_EN, hw->hw_addr + REG_MASTER_CTRL); - /* clear ISR status, and Enable CMB DMA/Disable Interrupt */ - iowrite32(status | ISR_DIS_INT, adapter->hw.hw_addr + REG_ISR); + /* set Interrupt Clear Timer */ + iowrite16(adapter->ict, hw->hw_addr + REG_CMBDISDMA_TIMER); - /* check if SMB intr */ - if (status & ISR_SMB) - atl1_inc_smb(adapter); + /* set max frame size hw will accept */ + iowrite32(hw->max_frame_size, hw->hw_addr + REG_MTU); - /* check if PCIE PHY Link down */ - if (status & ISR_PHY_LINKDOWN) { - if (netif_msg_intr(adapter)) - dev_printk(KERN_DEBUG, &adapter->pdev->dev, - "pcie phy link down %x\n", status); - if (netif_running(adapter->netdev)) { /* reset MAC */ - iowrite32(0, adapter->hw.hw_addr + REG_IMR); - schedule_work(&adapter->pcie_dma_to_rst_task); - return IRQ_HANDLED; - } - } + /* jumbo size & rrd retirement timer */ + value = (((u32) hw->rx_jumbo_th & RXQ_JMBOSZ_TH_MASK) + << RXQ_JMBOSZ_TH_SHIFT) | + (((u32) hw->rx_jumbo_lkah & RXQ_JMBO_LKAH_MASK) + << RXQ_JMBO_LKAH_SHIFT) | + (((u32) hw->rrd_ret_timer & RXQ_RRD_TIMER_MASK) + << RXQ_RRD_TIMER_SHIFT); + iowrite32(value, hw->hw_addr + REG_RXQ_JMBOSZ_RRDTIM); - /* check if DMA read/write error ? */ - if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) { - if (netif_msg_intr(adapter)) - dev_printk(KERN_DEBUG, &adapter->pdev->dev, - "pcie DMA r/w error (status = 0x%x)\n", - status); - iowrite32(0, adapter->hw.hw_addr + REG_IMR); - schedule_work(&adapter->pcie_dma_to_rst_task); - return IRQ_HANDLED; - } + /* Flow Control */ + switch (hw->dev_rev) { + case 0x8001: + case 0x9001: + case 0x9002: + case 0x9003: + set_flow_ctrl_old(adapter); + break; + default: + set_flow_ctrl_new(hw); + break; + } - /* link event */ - if (status & ISR_GPHY) { - adapter->soft_stats.tx_carrier_errors++; - atl1_check_for_link(adapter); - } + /* config TXQ */ + value = (((u32) hw->tpd_burst & TXQ_CTRL_TPD_BURST_NUM_MASK) + << TXQ_CTRL_TPD_BURST_NUM_SHIFT) | + (((u32) hw->txf_burst & TXQ_CTRL_TXF_BURST_NUM_MASK) + << TXQ_CTRL_TXF_BURST_NUM_SHIFT) | + (((u32) hw->tpd_fetch_th & TXQ_CTRL_TPD_FETCH_TH_MASK) + << TXQ_CTRL_TPD_FETCH_TH_SHIFT) | TXQ_CTRL_ENH_MODE | + TXQ_CTRL_EN; + iowrite32(value, hw->hw_addr + REG_TXQ_CTRL); - /* transmit event */ - if (status & ISR_CMB_TX) - atl1_intr_tx(adapter); + /* min tpd fetch gap & tx jumbo packet size threshold for taskoffload */ + value = (((u32) hw->tx_jumbo_task_th & TX_JUMBO_TASK_TH_MASK) + << TX_JUMBO_TASK_TH_SHIFT) | + (((u32) hw->tpd_fetch_gap & TX_TPD_MIN_IPG_MASK) + << TX_TPD_MIN_IPG_SHIFT); + iowrite32(value, hw->hw_addr + REG_TX_JUMBO_TASK_TH_TPD_IPG); - /* rx exception */ - if (unlikely(status & (ISR_RXF_OV | ISR_RFD_UNRUN | - ISR_RRD_OV | ISR_HOST_RFD_UNRUN | - ISR_HOST_RRD_OV | ISR_CMB_RX))) { - if (status & (ISR_RXF_OV | ISR_RFD_UNRUN | - ISR_RRD_OV | ISR_HOST_RFD_UNRUN | - ISR_HOST_RRD_OV)) - if (netif_msg_intr(adapter)) - dev_printk(KERN_DEBUG, - &adapter->pdev->dev, - "rx exception, ISR = 0x%x\n", - status); - atl1_intr_rx(adapter); - } + /* config RXQ */ + value = (((u32) hw->rfd_burst & RXQ_CTRL_RFD_BURST_NUM_MASK) + << RXQ_CTRL_RFD_BURST_NUM_SHIFT) | + (((u32) hw->rrd_burst & RXQ_CTRL_RRD_BURST_THRESH_MASK) + << RXQ_CTRL_RRD_BURST_THRESH_SHIFT) | + (((u32) hw->rfd_fetch_gap & RXQ_CTRL_RFD_PREF_MIN_IPG_MASK) + << RXQ_CTRL_RFD_PREF_MIN_IPG_SHIFT) | RXQ_CTRL_CUT_THRU_EN | + RXQ_CTRL_EN; + iowrite32(value, hw->hw_addr + REG_RXQ_CTRL); - if (--max_ints < 0) - break; + /* config DMA Engine */ + value = ((((u32) hw->dmar_block) & DMA_CTRL_DMAR_BURST_LEN_MASK) + << DMA_CTRL_DMAR_BURST_LEN_SHIFT) | + ((((u32) hw->dmaw_block) & DMA_CTRL_DMAW_BURST_LEN_MASK) + << DMA_CTRL_DMAW_BURST_LEN_SHIFT) | DMA_CTRL_DMAR_EN | + DMA_CTRL_DMAW_EN; + value |= (u32) hw->dma_ord; + if (atl1_rcb_128 == hw->rcb_value) + value |= DMA_CTRL_RCB_VALUE; + iowrite32(value, hw->hw_addr + REG_DMA_CTRL); - } while ((status = adapter->cmb.cmb->int_stats)); + /* config CMB / SMB */ + value = (hw->cmb_tpd > adapter->tpd_ring.count) ? + hw->cmb_tpd : adapter->tpd_ring.count; + value <<= 16; + value |= hw->cmb_rrd; + iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TH); + value = hw->cmb_rx_timer | ((u32) hw->cmb_tx_timer << 16); + iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TIMER); + iowrite32(hw->smb_timer, hw->hw_addr + REG_SMB_TIMER); - /* re-enable Interrupt */ - iowrite32(ISR_DIS_SMB | ISR_DIS_DMA, adapter->hw.hw_addr + REG_ISR); - return IRQ_HANDLED; -} + /* --- enable CMB / SMB */ + value = CSMB_CTRL_CMB_EN | CSMB_CTRL_SMB_EN; + iowrite32(value, hw->hw_addr + REG_CSMB_CTRL); -/* - * atl1_watchdog - Timer Call-back - * @data: pointer to netdev cast into an unsigned long - */ -static void atl1_watchdog(unsigned long data) -{ - struct atl1_adapter *adapter = (struct atl1_adapter *)data; + value = ioread32(adapter->hw.hw_addr + REG_ISR); + if (unlikely((value & ISR_PHY_LINKDOWN) != 0)) + value = 1; /* config failed */ + else + value = 0; - /* Reset the timer */ - mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); + /* clear all interrupt status */ + iowrite32(0x3fffffff, adapter->hw.hw_addr + REG_ISR); + iowrite32(0, adapter->hw.hw_addr + REG_ISR); + return value; } /* - * atl1_phy_config - Timer Call-back - * @data: pointer to netdev cast into an unsigned long + * atl1_pcie_patch - Patch for PCIE module */ -static void atl1_phy_config(unsigned long data) +static void atl1_pcie_patch(struct atl1_adapter *adapter) { - struct atl1_adapter *adapter = (struct atl1_adapter *)data; - struct atl1_hw *hw = &adapter->hw; - unsigned long flags; + u32 value; - spin_lock_irqsave(&adapter->lock, flags); - adapter->phy_timer_pending = false; - atl1_write_phy_reg(hw, MII_ADVERTISE, hw->mii_autoneg_adv_reg); - atl1_write_phy_reg(hw, MII_ATLX_CR, hw->mii_1000t_ctrl_reg); - atl1_write_phy_reg(hw, MII_BMCR, MII_CR_RESET | MII_CR_AUTO_NEG_EN); - spin_unlock_irqrestore(&adapter->lock, flags); + /* much vendor magic here */ + value = 0x6500; + iowrite32(value, adapter->hw.hw_addr + 0x12FC); + /* pcie flow control mode change */ + value = ioread32(adapter->hw.hw_addr + 0x1008); + value |= 0x8000; + iowrite32(value, adapter->hw.hw_addr + 0x1008); } /* - * Orphaned vendor comment left intact here: - * - * If TPD Buffer size equal to 0, PCIE DMAR_TO_INT - * will assert. We do soft reset <0x1400=1> according - * with the SPEC. BUT, it seemes that PCIE or DMA - * state-machine will not be reset. DMAR_TO_INT will - * assert again and again. - * + * When ACPI resume on some VIA MotherBoard, the Interrupt Disable bit/0x400 + * on PCI Command register is disable. + * The function enable this bit. + * Brackett, 2006/03/15 */ - -static int atl1_reset(struct atl1_adapter *adapter) +static void atl1_via_workaround(struct atl1_adapter *adapter) { - int ret; - ret = atl1_reset_hw(&adapter->hw); - if (ret) - return ret; - return atl1_init_hw(&adapter->hw); + unsigned long value; + + value = ioread16(adapter->hw.hw_addr + PCI_COMMAND); + if (value & PCI_COMMAND_INTX_DISABLE) + value &= ~PCI_COMMAND_INTX_DISABLE; + iowrite32(value, adapter->hw.hw_addr + PCI_COMMAND); } -static s32 atl1_up(struct atl1_adapter *adapter) +static void atl1_inc_smb(struct atl1_adapter *adapter) { - struct net_device *netdev = adapter->netdev; - int err; - int irq_flags = IRQF_SAMPLE_RANDOM; + struct stats_msg_block *smb = adapter->smb.smb; - /* hardware has been reset, we need to reload some things */ - atlx_set_multi(netdev); - atl1_init_ring_ptrs(adapter); - atlx_restore_vlan(adapter); - err = atl1_alloc_rx_buffers(adapter); - if (unlikely(!err)) - /* no RX BUFFER allocated */ - return -ENOMEM; + /* Fill out the OS statistics structure */ + adapter->soft_stats.rx_packets += smb->rx_ok; + adapter->soft_stats.tx_packets += smb->tx_ok; + adapter->soft_stats.rx_bytes += smb->rx_byte_cnt; + adapter->soft_stats.tx_bytes += smb->tx_byte_cnt; + adapter->soft_stats.multicast += smb->rx_mcast; + adapter->soft_stats.collisions += (smb->tx_1_col + smb->tx_2_col * 2 + + smb->tx_late_col + smb->tx_abort_col * adapter->hw.max_retry); - if (unlikely(atl1_configure(adapter))) { - err = -EIO; - goto err_up; - } + /* Rx Errors */ + adapter->soft_stats.rx_errors += (smb->rx_frag + smb->rx_fcs_err + + smb->rx_len_err + smb->rx_sz_ov + smb->rx_rxf_ov + + smb->rx_rrd_ov + smb->rx_align_err); + adapter->soft_stats.rx_fifo_errors += smb->rx_rxf_ov; + adapter->soft_stats.rx_length_errors += smb->rx_len_err; + adapter->soft_stats.rx_crc_errors += smb->rx_fcs_err; + adapter->soft_stats.rx_frame_errors += smb->rx_align_err; + adapter->soft_stats.rx_missed_errors += (smb->rx_rrd_ov + + smb->rx_rxf_ov); - err = pci_enable_msi(adapter->pdev); - if (err) { - if (netif_msg_ifup(adapter)) - dev_info(&adapter->pdev->dev, - "Unable to enable MSI: %d\n", err); - irq_flags |= IRQF_SHARED; - } + adapter->soft_stats.rx_pause += smb->rx_pause; + adapter->soft_stats.rx_rrd_ov += smb->rx_rrd_ov; + adapter->soft_stats.rx_trunc += smb->rx_sz_ov; - err = request_irq(adapter->pdev->irq, &atl1_intr, irq_flags, - netdev->name, netdev); - if (unlikely(err)) - goto err_up; + /* Tx Errors */ + adapter->soft_stats.tx_errors += (smb->tx_late_col + + smb->tx_abort_col + smb->tx_underrun + smb->tx_trunc); + adapter->soft_stats.tx_fifo_errors += smb->tx_underrun; + adapter->soft_stats.tx_aborted_errors += smb->tx_abort_col; + adapter->soft_stats.tx_window_errors += smb->tx_late_col; - mod_timer(&adapter->watchdog_timer, jiffies); - atlx_irq_enable(adapter); - atl1_check_link(adapter); - return 0; + adapter->soft_stats.excecol += smb->tx_abort_col; + adapter->soft_stats.deffer += smb->tx_defer; + adapter->soft_stats.scc += smb->tx_1_col; + adapter->soft_stats.mcc += smb->tx_2_col; + adapter->soft_stats.latecol += smb->tx_late_col; + adapter->soft_stats.tx_underun += smb->tx_underrun; + adapter->soft_stats.tx_trunc += smb->tx_trunc; + adapter->soft_stats.tx_pause += smb->tx_pause; -err_up: - pci_disable_msi(adapter->pdev); - /* free rx_buffers */ - atl1_clean_rx_ring(adapter); - return err; + adapter->net_stats.rx_packets = adapter->soft_stats.rx_packets; + adapter->net_stats.tx_packets = adapter->soft_stats.tx_packets; + adapter->net_stats.rx_bytes = adapter->soft_stats.rx_bytes; + adapter->net_stats.tx_bytes = adapter->soft_stats.tx_bytes; + adapter->net_stats.multicast = adapter->soft_stats.multicast; + adapter->net_stats.collisions = adapter->soft_stats.collisions; + adapter->net_stats.rx_errors = adapter->soft_stats.rx_errors; + adapter->net_stats.rx_over_errors = + adapter->soft_stats.rx_missed_errors; + adapter->net_stats.rx_length_errors = + adapter->soft_stats.rx_length_errors; + adapter->net_stats.rx_crc_errors = adapter->soft_stats.rx_crc_errors; + adapter->net_stats.rx_frame_errors = + adapter->soft_stats.rx_frame_errors; + adapter->net_stats.rx_fifo_errors = adapter->soft_stats.rx_fifo_errors; + adapter->net_stats.rx_missed_errors = + adapter->soft_stats.rx_missed_errors; + adapter->net_stats.tx_errors = adapter->soft_stats.tx_errors; + adapter->net_stats.tx_fifo_errors = adapter->soft_stats.tx_fifo_errors; + adapter->net_stats.tx_aborted_errors = + adapter->soft_stats.tx_aborted_errors; + adapter->net_stats.tx_window_errors = + adapter->soft_stats.tx_window_errors; + adapter->net_stats.tx_carrier_errors = + adapter->soft_stats.tx_carrier_errors; } -static void atl1_down(struct atl1_adapter *adapter) +static void atl1_update_mailbox(struct atl1_adapter *adapter) { - struct net_device *netdev = adapter->netdev; + unsigned long flags; + u32 tpd_next_to_use; + u32 rfd_next_to_use; + u32 rrd_next_to_clean; + u32 value; - del_timer_sync(&adapter->watchdog_timer); - del_timer_sync(&adapter->phy_config_timer); - adapter->phy_timer_pending = false; + spin_lock_irqsave(&adapter->mb_lock, flags); - atlx_irq_disable(adapter); - free_irq(adapter->pdev->irq, netdev); - pci_disable_msi(adapter->pdev); - atl1_reset_hw(&adapter->hw); - adapter->cmb.cmb->int_stats = 0; + tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use); + rfd_next_to_use = atomic_read(&adapter->rfd_ring.next_to_use); + rrd_next_to_clean = atomic_read(&adapter->rrd_ring.next_to_clean); - adapter->link_speed = SPEED_0; - adapter->link_duplex = -1; - netif_carrier_off(netdev); - netif_stop_queue(netdev); + value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) << + MB_RFD_PROD_INDX_SHIFT) | + ((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) << + MB_RRD_CONS_INDX_SHIFT) | + ((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) << + MB_TPD_PROD_INDX_SHIFT); + iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX); - atl1_clean_tx_ring(adapter); - atl1_clean_rx_ring(adapter); + spin_unlock_irqrestore(&adapter->mb_lock, flags); } -static void atl1_tx_timeout_task(struct work_struct *work) +static void atl1_clean_alloc_flag(struct atl1_adapter *adapter, + struct rx_return_desc *rrd, u16 offset) { - struct atl1_adapter *adapter = - container_of(work, struct atl1_adapter, tx_timeout_task); - struct net_device *netdev = adapter->netdev; + struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring; - netif_device_detach(netdev); - atl1_down(adapter); - atl1_up(adapter); - netif_device_attach(netdev); + while (rfd_ring->next_to_clean != (rrd->buf_indx + offset)) { + rfd_ring->buffer_info[rfd_ring->next_to_clean].alloced = 0; + if (++rfd_ring->next_to_clean == rfd_ring->count) { + rfd_ring->next_to_clean = 0; + } + } } -/* - * atl1_change_mtu - Change the Maximum Transfer Unit - * @netdev: network interface device structure - * @new_mtu: new value for maximum frame size - * - * Returns 0 on success, negative on failure - */ -static int atl1_change_mtu(struct net_device *netdev, int new_mtu) +static void atl1_update_rfd_index(struct atl1_adapter *adapter, + struct rx_return_desc *rrd) { - struct atl1_adapter *adapter = netdev_priv(netdev); - int old_mtu = netdev->mtu; - int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; - - if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) || - (max_frame > MAX_JUMBO_FRAME_SIZE)) { - if (netif_msg_link(adapter)) - dev_warn(&adapter->pdev->dev, "invalid MTU setting\n"); - return -EINVAL; - } - - adapter->hw.max_frame_size = max_frame; - adapter->hw.tx_jumbo_task_th = (max_frame + 7) >> 3; - adapter->rx_buffer_len = (max_frame + 7) & ~7; - adapter->hw.rx_jumbo_th = adapter->rx_buffer_len / 8; - - netdev->mtu = new_mtu; - if ((old_mtu != new_mtu) && netif_running(netdev)) { - atl1_down(adapter); - atl1_up(adapter); - } + u16 num_buf; - return 0; + num_buf = (rrd->xsz.xsum_sz.pkt_size + adapter->rx_buffer_len - 1) / + adapter->rx_buffer_len; + if (rrd->num_buf == num_buf) + /* clean alloc flag for bad rrd */ + atl1_clean_alloc_flag(adapter, rrd, num_buf); } -/* - * atl1_open - Called when a network interface is made active - * @netdev: network interface device structure - * - * Returns 0 on success, negative value on failure - * - * The open entry point is called when a network interface is made - * active by the system (IFF_UP). At this point all resources needed - * for transmit and receive operations are allocated, the interrupt - * handler is registered with the OS, the watchdog timer is started, - * and the stack is notified that the interface is ready. - */ -static int atl1_open(struct net_device *netdev) +static void atl1_rx_checksum(struct atl1_adapter *adapter, + struct rx_return_desc *rrd, struct sk_buff *skb) { - struct atl1_adapter *adapter = netdev_priv(netdev); - int err; + struct pci_dev *pdev = adapter->pdev; - /* allocate transmit descriptors */ - err = atl1_setup_ring_resources(adapter); - if (err) - return err; + skb->ip_summed = CHECKSUM_NONE; - err = atl1_up(adapter); - if (err) - goto err_up; + if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) { + if (rrd->err_flg & (ERR_FLAG_CRC | ERR_FLAG_TRUNC | + ERR_FLAG_CODE | ERR_FLAG_OV)) { + adapter->hw_csum_err++; + if (netif_msg_rx_err(adapter)) + dev_printk(KERN_DEBUG, &pdev->dev, + "rx checksum error\n"); + return; + } + } - return 0; + /* not IPv4 */ + if (!(rrd->pkt_flg & PACKET_FLAG_IPV4)) + /* checksum is invalid, but it's not an IPv4 pkt, so ok */ + return; -err_up: - atl1_reset(adapter); - return err; + /* IPv4 packet */ + if (likely(!(rrd->err_flg & + (ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM)))) { + skb->ip_summed = CHECKSUM_UNNECESSARY; + adapter->hw_csum_good++; + return; + } + + /* IPv4, but hardware thinks its checksum is wrong */ + if (netif_msg_rx_err(adapter)) + dev_printk(KERN_DEBUG, &pdev->dev, + "hw csum wrong, pkt_flag:%x, err_flag:%x\n", + rrd->pkt_flg, rrd->err_flg); + skb->ip_summed = CHECKSUM_COMPLETE; + skb->csum = htons(rrd->xsz.xsum_sz.rx_chksum); + adapter->hw_csum_err++; + return; } /* - * atl1_close - Disables a network interface - * @netdev: network interface device structure - * - * Returns 0, this is not allowed to fail - * - * The close entry point is called when an interface is de-activated - * by the OS. The hardware is still under the drivers control, but - * needs to be disabled. A global MAC reset is issued to stop the - * hardware, and all transmit and receive resources are freed. + * atl1_alloc_rx_buffers - Replace used receive buffers + * @adapter: address of board private structure */ -static int atl1_close(struct net_device *netdev) -{ - struct atl1_adapter *adapter = netdev_priv(netdev); - atl1_down(adapter); - atl1_free_ring_resources(adapter); - return 0; -} - -#ifdef CONFIG_PM -static int atl1_suspend(struct pci_dev *pdev, pm_message_t state) +static u16 atl1_alloc_rx_buffers(struct atl1_adapter *adapter) { - struct net_device *netdev = pci_get_drvdata(pdev); - struct atl1_adapter *adapter = netdev_priv(netdev); - struct atl1_hw *hw = &adapter->hw; - u32 ctrl = 0; - u32 wufc = adapter->wol; + struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring; + struct pci_dev *pdev = adapter->pdev; + struct page *page; + unsigned long offset; + struct atl1_buffer *buffer_info, *next_info; + struct sk_buff *skb; + u16 num_alloc = 0; + u16 rfd_next_to_use, next_next; + struct rx_free_desc *rfd_desc; - netif_device_detach(netdev); - if (netif_running(netdev)) - atl1_down(adapter); + next_next = rfd_next_to_use = atomic_read(&rfd_ring->next_to_use); + if (++next_next == rfd_ring->count) + next_next = 0; + buffer_info = &rfd_ring->buffer_info[rfd_next_to_use]; + next_info = &rfd_ring->buffer_info[next_next]; - atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl); - atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl); - if (ctrl & BMSR_LSTATUS) - wufc &= ~ATLX_WUFC_LNKC; + while (!buffer_info->alloced && !next_info->alloced) { + if (buffer_info->skb) { + buffer_info->alloced = 1; + goto next; + } - /* reduce speed to 10/100M */ - if (wufc) { - atl1_phy_enter_power_saving(hw); - /* if resume, let driver to re- setup link */ - hw->phy_configured = false; - atl1_set_mac_addr(hw); - atlx_set_multi(netdev); + rfd_desc = ATL1_RFD_DESC(rfd_ring, rfd_next_to_use); - ctrl = 0; - /* turn on magic packet wol */ - if (wufc & ATLX_WUFC_MAG) - ctrl = WOL_MAGIC_EN | WOL_MAGIC_PME_EN; + skb = dev_alloc_skb(adapter->rx_buffer_len + NET_IP_ALIGN); + if (unlikely(!skb)) { + /* Better luck next round */ + adapter->net_stats.rx_dropped++; + break; + } - /* turn on Link change WOL */ - if (wufc & ATLX_WUFC_LNKC) - ctrl |= (WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN); - iowrite32(ctrl, hw->hw_addr + REG_WOL_CTRL); + /* + * Make buffer alignment 2 beyond a 16 byte boundary + * this will result in a 16 byte aligned IP header after + * the 14 byte MAC header is removed + */ + skb_reserve(skb, NET_IP_ALIGN); - /* turn on all-multi mode if wake on multicast is enabled */ - ctrl = ioread32(hw->hw_addr + REG_MAC_CTRL); - ctrl &= ~MAC_CTRL_DBG; - ctrl &= ~MAC_CTRL_PROMIS_EN; - if (wufc & ATLX_WUFC_MC) - ctrl |= MAC_CTRL_MC_ALL_EN; - else - ctrl &= ~MAC_CTRL_MC_ALL_EN; + buffer_info->alloced = 1; + buffer_info->skb = skb; + buffer_info->length = (u16) adapter->rx_buffer_len; + page = virt_to_page(skb->data); + offset = (unsigned long)skb->data & ~PAGE_MASK; + buffer_info->dma = pci_map_page(pdev, page, offset, + adapter->rx_buffer_len, + PCI_DMA_FROMDEVICE); + rfd_desc->buffer_addr = cpu_to_le64(buffer_info->dma); + rfd_desc->buf_len = cpu_to_le16(adapter->rx_buffer_len); + rfd_desc->coalese = 0; - /* turn on broadcast mode if wake on-BC is enabled */ - if (wufc & ATLX_WUFC_BC) - ctrl |= MAC_CTRL_BC_EN; - else - ctrl &= ~MAC_CTRL_BC_EN; +next: + rfd_next_to_use = next_next; + if (unlikely(++next_next == rfd_ring->count)) + next_next = 0; - /* enable RX */ - ctrl |= MAC_CTRL_RX_EN; - iowrite32(ctrl, hw->hw_addr + REG_MAC_CTRL); - pci_enable_wake(pdev, PCI_D3hot, 1); - pci_enable_wake(pdev, PCI_D3cold, 1); - } else { - iowrite32(0, hw->hw_addr + REG_WOL_CTRL); - pci_enable_wake(pdev, PCI_D3hot, 0); - pci_enable_wake(pdev, PCI_D3cold, 0); + buffer_info = &rfd_ring->buffer_info[rfd_next_to_use]; + next_info = &rfd_ring->buffer_info[next_next]; + num_alloc++; } - pci_save_state(pdev); - pci_disable_device(pdev); - - pci_set_power_state(pdev, PCI_D3hot); - - return 0; + if (num_alloc) { + /* + * Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). + */ + wmb(); + atomic_set(&rfd_ring->next_to_use, (int)rfd_next_to_use); + } + return num_alloc; } -static int atl1_resume(struct pci_dev *pdev) +static void atl1_intr_rx(struct atl1_adapter *adapter) { - struct net_device *netdev = pci_get_drvdata(pdev); - struct atl1_adapter *adapter = netdev_priv(netdev); - u32 err; + int i, count; + u16 length; + u16 rrd_next_to_clean; + u32 value; + struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring; + struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring; + struct atl1_buffer *buffer_info; + struct rx_return_desc *rrd; + struct sk_buff *skb; - pci_set_power_state(pdev, PCI_D0); - pci_restore_state(pdev); + count = 0; - /* FIXME: check and handle */ - err = pci_enable_device(pdev); - pci_enable_wake(pdev, PCI_D3hot, 0); - pci_enable_wake(pdev, PCI_D3cold, 0); + rrd_next_to_clean = atomic_read(&rrd_ring->next_to_clean); - iowrite32(0, adapter->hw.hw_addr + REG_WOL_CTRL); - atl1_reset(adapter); + while (1) { + rrd = ATL1_RRD_DESC(rrd_ring, rrd_next_to_clean); + i = 1; + if (likely(rrd->xsz.valid)) { /* packet valid */ +chk_rrd: + /* check rrd status */ + if (likely(rrd->num_buf == 1)) + goto rrd_ok; + else if (netif_msg_rx_err(adapter)) { + dev_printk(KERN_DEBUG, &adapter->pdev->dev, + "unexpected RRD buffer count\n"); + dev_printk(KERN_DEBUG, &adapter->pdev->dev, + "rx_buf_len = %d\n", + adapter->rx_buffer_len); + dev_printk(KERN_DEBUG, &adapter->pdev->dev, + "RRD num_buf = %d\n", + rrd->num_buf); + dev_printk(KERN_DEBUG, &adapter->pdev->dev, + "RRD pkt_len = %d\n", + rrd->xsz.xsum_sz.pkt_size); + dev_printk(KERN_DEBUG, &adapter->pdev->dev, + "RRD pkt_flg = 0x%08X\n", + rrd->pkt_flg); + dev_printk(KERN_DEBUG, &adapter->pdev->dev, + "RRD err_flg = 0x%08X\n", + rrd->err_flg); + dev_printk(KERN_DEBUG, &adapter->pdev->dev, + "RRD vlan_tag = 0x%08X\n", + rrd->vlan_tag); + } - if (netif_running(netdev)) - atl1_up(adapter); - netif_device_attach(netdev); + /* rrd seems to be bad */ + if (unlikely(i-- > 0)) { + /* rrd may not be DMAed completely */ + udelay(1); + goto chk_rrd; + } + /* bad rrd */ + if (netif_msg_rx_err(adapter)) + dev_printk(KERN_DEBUG, &adapter->pdev->dev, + "bad RRD\n"); + /* see if update RFD index */ + if (rrd->num_buf > 1) + atl1_update_rfd_index(adapter, rrd); - atl1_via_workaround(adapter); + /* update rrd */ + rrd->xsz.valid = 0; + if (++rrd_next_to_clean == rrd_ring->count) + rrd_next_to_clean = 0; + count++; + continue; + } else { /* current rrd still not be updated */ - return 0; -} -#else -#define atl1_suspend NULL -#define atl1_resume NULL -#endif + break; + } +rrd_ok: + /* clean alloc flag for bad rrd */ + atl1_clean_alloc_flag(adapter, rrd, 0); -#ifdef CONFIG_NET_POLL_CONTROLLER -static void atl1_poll_controller(struct net_device *netdev) -{ - disable_irq(netdev->irq); - atl1_intr(netdev->irq, netdev); - enable_irq(netdev->irq); -} -#endif + buffer_info = &rfd_ring->buffer_info[rrd->buf_indx]; + if (++rfd_ring->next_to_clean == rfd_ring->count) + rfd_ring->next_to_clean = 0; -/* - * atl1_probe - Device Initialization Routine - * @pdev: PCI device information struct - * @ent: entry in atl1_pci_tbl - * - * Returns 0 on success, negative on failure - * - * atl1_probe initializes an adapter identified by a pci_dev structure. - * The OS initialization, configuring of the adapter private structure, - * and a hardware reset occur. - */ -static int __devinit atl1_probe(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - struct net_device *netdev; - struct atl1_adapter *adapter; - static int cards_found = 0; - int err; + /* update rrd next to clean */ + if (++rrd_next_to_clean == rrd_ring->count) + rrd_next_to_clean = 0; + count++; - err = pci_enable_device(pdev); - if (err) - return err; + if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) { + if (!(rrd->err_flg & + (ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM + | ERR_FLAG_LEN))) { + /* packet error, don't need upstream */ + buffer_info->alloced = 0; + rrd->xsz.valid = 0; + continue; + } + } - /* - * The atl1 chip can DMA to 64-bit addresses, but it uses a single - * shared register for the high 32 bits, so only a single, aligned, - * 4 GB physical address range can be used at a time. - * - * Supporting 64-bit DMA on this hardware is more trouble than it's - * worth. It is far easier to limit to 32-bit DMA than update - * various kernel subsystems to support the mechanics required by a - * fixed-high-32-bit system. - */ - err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); - if (err) { - dev_err(&pdev->dev, "no usable DMA configuration\n"); - goto err_dma; - } - /* - * Mark all PCI regions associated with PCI device - * pdev as being reserved by owner atl1_driver_name - */ - err = pci_request_regions(pdev, ATLX_DRIVER_NAME); - if (err) - goto err_request_regions; + /* Good Receive */ + pci_unmap_page(adapter->pdev, buffer_info->dma, + buffer_info->length, PCI_DMA_FROMDEVICE); + skb = buffer_info->skb; + length = le16_to_cpu(rrd->xsz.xsum_sz.pkt_size); - /* - * Enables bus-mastering on the device and calls - * pcibios_set_master to do the needed arch specific settings - */ - pci_set_master(pdev); + skb_put(skb, length - ETH_FCS_LEN); - netdev = alloc_etherdev(sizeof(struct atl1_adapter)); - if (!netdev) { - err = -ENOMEM; - goto err_alloc_etherdev; + /* Receive Checksum Offload */ + atl1_rx_checksum(adapter, rrd, skb); + skb->protocol = eth_type_trans(skb, adapter->netdev); + + if (adapter->vlgrp && (rrd->pkt_flg & PACKET_FLAG_VLAN_INS)) { + u16 vlan_tag = (rrd->vlan_tag >> 4) | + ((rrd->vlan_tag & 7) << 13) | + ((rrd->vlan_tag & 8) << 9); + vlan_hwaccel_rx(skb, adapter->vlgrp, vlan_tag); + } else + netif_rx(skb); + + /* let protocol layer free skb */ + buffer_info->skb = NULL; + buffer_info->alloced = 0; + rrd->xsz.valid = 0; + + adapter->netdev->last_rx = jiffies; } - SET_NETDEV_DEV(netdev, &pdev->dev); - pci_set_drvdata(pdev, netdev); - adapter = netdev_priv(netdev); - adapter->netdev = netdev; - adapter->pdev = pdev; - adapter->hw.back = adapter; - adapter->msg_enable = netif_msg_init(debug, atl1_default_msg); + atomic_set(&rrd_ring->next_to_clean, rrd_next_to_clean); - adapter->hw.hw_addr = pci_iomap(pdev, 0, 0); - if (!adapter->hw.hw_addr) { - err = -EIO; - goto err_pci_iomap; - } - /* get device revision number */ - adapter->hw.dev_rev = ioread16(adapter->hw.hw_addr + - (REG_MASTER_CTRL + 2)); - if (netif_msg_probe(adapter)) - dev_info(&pdev->dev, "version %s\n", ATLX_DRIVER_VERSION); + atl1_alloc_rx_buffers(adapter); - /* set default ring resource counts */ - adapter->rfd_ring.count = adapter->rrd_ring.count = ATL1_DEFAULT_RFD; - adapter->tpd_ring.count = ATL1_DEFAULT_TPD; + /* update mailbox ? */ + if (count) { + u32 tpd_next_to_use; + u32 rfd_next_to_use; - adapter->mii.dev = netdev; - adapter->mii.mdio_read = mdio_read; - adapter->mii.mdio_write = mdio_write; - adapter->mii.phy_id_mask = 0x1f; - adapter->mii.reg_num_mask = 0x1f; + spin_lock(&adapter->mb_lock); - netdev->open = &atl1_open; - netdev->stop = &atl1_close; - netdev->hard_start_xmit = &atl1_xmit_frame; - netdev->get_stats = &atlx_get_stats; - netdev->set_multicast_list = &atlx_set_multi; - netdev->set_mac_address = &atl1_set_mac; - netdev->change_mtu = &atl1_change_mtu; - netdev->do_ioctl = &atlx_ioctl; - netdev->tx_timeout = &atlx_tx_timeout; - netdev->watchdog_timeo = 5 * HZ; -#ifdef CONFIG_NET_POLL_CONTROLLER - netdev->poll_controller = atl1_poll_controller; -#endif - netdev->vlan_rx_register = atlx_vlan_rx_register; + tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use); + rfd_next_to_use = + atomic_read(&adapter->rfd_ring.next_to_use); + rrd_next_to_clean = + atomic_read(&adapter->rrd_ring.next_to_clean); + value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) << + MB_RFD_PROD_INDX_SHIFT) | + ((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) << + MB_RRD_CONS_INDX_SHIFT) | + ((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) << + MB_TPD_PROD_INDX_SHIFT); + iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX); + spin_unlock(&adapter->mb_lock); + } +} - netdev->ethtool_ops = &atl1_ethtool_ops; - adapter->bd_number = cards_found; +static void atl1_intr_tx(struct atl1_adapter *adapter) +{ + struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; + struct atl1_buffer *buffer_info; + u16 sw_tpd_next_to_clean; + u16 cmb_tpd_next_to_clean; - /* setup the private structure */ - err = atl1_sw_init(adapter); - if (err) - goto err_common; + sw_tpd_next_to_clean = atomic_read(&tpd_ring->next_to_clean); + cmb_tpd_next_to_clean = le16_to_cpu(adapter->cmb.cmb->tpd_cons_idx); - netdev->features = NETIF_F_HW_CSUM; - netdev->features |= NETIF_F_SG; - netdev->features |= (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX); - netdev->features |= NETIF_F_TSO; - netdev->features |= NETIF_F_LLTX; + while (cmb_tpd_next_to_clean != sw_tpd_next_to_clean) { + struct tx_packet_desc *tpd; - /* - * patch for some L1 of old version, - * the final version of L1 may not need these - * patches - */ - /* atl1_pcie_patch(adapter); */ + tpd = ATL1_TPD_DESC(tpd_ring, sw_tpd_next_to_clean); + buffer_info = &tpd_ring->buffer_info[sw_tpd_next_to_clean]; + if (buffer_info->dma) { + pci_unmap_page(adapter->pdev, buffer_info->dma, + buffer_info->length, PCI_DMA_TODEVICE); + buffer_info->dma = 0; + } - /* really reset GPHY core */ - iowrite16(0, adapter->hw.hw_addr + REG_PHY_ENABLE); + if (buffer_info->skb) { + dev_kfree_skb_irq(buffer_info->skb); + buffer_info->skb = NULL; + } - /* - * reset the controller to - * put the device in a known good starting state - */ - if (atl1_reset_hw(&adapter->hw)) { - err = -EIO; - goto err_common; + if (++sw_tpd_next_to_clean == tpd_ring->count) + sw_tpd_next_to_clean = 0; } + atomic_set(&tpd_ring->next_to_clean, sw_tpd_next_to_clean); - /* copy the MAC address out of the EEPROM */ - atl1_read_mac_addr(&adapter->hw); - memcpy(netdev->dev_addr, adapter->hw.mac_addr, netdev->addr_len); + if (netif_queue_stopped(adapter->netdev) + && netif_carrier_ok(adapter->netdev)) + netif_wake_queue(adapter->netdev); +} - if (!is_valid_ether_addr(netdev->dev_addr)) { - err = -EIO; - goto err_common; - } +static u16 atl1_tpd_avail(struct atl1_tpd_ring *tpd_ring) +{ + u16 next_to_clean = atomic_read(&tpd_ring->next_to_clean); + u16 next_to_use = atomic_read(&tpd_ring->next_to_use); + return ((next_to_clean > next_to_use) ? + next_to_clean - next_to_use - 1 : + tpd_ring->count + next_to_clean - next_to_use - 1); +} - atl1_check_options(adapter); +static int atl1_tso(struct atl1_adapter *adapter, struct sk_buff *skb, + struct tx_packet_desc *ptpd) +{ + /* spinlock held */ + u8 hdr_len, ip_off; + u32 real_len; + int err; - /* pre-init the MAC, and setup link */ - err = atl1_init_hw(&adapter->hw); - if (err) { - err = -EIO; - goto err_common; + if (skb_shinfo(skb)->gso_size) { + if (skb_header_cloned(skb)) { + err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); + if (unlikely(err)) + return -1; + } + + if (skb->protocol == ntohs(ETH_P_IP)) { + struct iphdr *iph = ip_hdr(skb); + + real_len = (((unsigned char *)iph - skb->data) + + ntohs(iph->tot_len)); + if (real_len < skb->len) + pskb_trim(skb, real_len); + hdr_len = (skb_transport_offset(skb) + tcp_hdrlen(skb)); + if (skb->len == hdr_len) { + iph->check = 0; + tcp_hdr(skb)->check = + ~csum_tcpudp_magic(iph->saddr, + iph->daddr, tcp_hdrlen(skb), + IPPROTO_TCP, 0); + ptpd->word3 |= (iph->ihl & TPD_IPHL_MASK) << + TPD_IPHL_SHIFT; + ptpd->word3 |= ((tcp_hdrlen(skb) >> 2) & + TPD_TCPHDRLEN_MASK) << + TPD_TCPHDRLEN_SHIFT; + ptpd->word3 |= 1 << TPD_IP_CSUM_SHIFT; + ptpd->word3 |= 1 << TPD_TCP_CSUM_SHIFT; + return 1; + } + + iph->check = 0; + tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, + iph->daddr, 0, IPPROTO_TCP, 0); + ip_off = (unsigned char *)iph - + (unsigned char *) skb_network_header(skb); + if (ip_off == 8) /* 802.3-SNAP frame */ + ptpd->word3 |= 1 << TPD_ETHTYPE_SHIFT; + else if (ip_off != 0) + return -2; + + ptpd->word3 |= (iph->ihl & TPD_IPHL_MASK) << + TPD_IPHL_SHIFT; + ptpd->word3 |= ((tcp_hdrlen(skb) >> 2) & + TPD_TCPHDRLEN_MASK) << TPD_TCPHDRLEN_SHIFT; + ptpd->word3 |= (skb_shinfo(skb)->gso_size & + TPD_MSS_MASK) << TPD_MSS_SHIFT; + ptpd->word3 |= 1 << TPD_SEGMENT_EN_SHIFT; + return 3; + } } + return false; +} - atl1_pcie_patch(adapter); - /* assume we have no link for now */ - netif_carrier_off(netdev); - netif_stop_queue(netdev); +static int atl1_tx_csum(struct atl1_adapter *adapter, struct sk_buff *skb, + struct tx_packet_desc *ptpd) +{ + u8 css, cso; - init_timer(&adapter->watchdog_timer); - adapter->watchdog_timer.function = &atl1_watchdog; - adapter->watchdog_timer.data = (unsigned long)adapter; + if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) { + css = (u8) (skb->csum_start - skb_headroom(skb)); + cso = css + (u8) skb->csum_offset; + if (unlikely(css & 0x1)) { + /* L1 hardware requires an even number here */ + if (netif_msg_tx_err(adapter)) + dev_printk(KERN_DEBUG, &adapter->pdev->dev, + "payload offset not an even number\n"); + return -1; + } + ptpd->word3 |= (css & TPD_PLOADOFFSET_MASK) << + TPD_PLOADOFFSET_SHIFT; + ptpd->word3 |= (cso & TPD_CCSUMOFFSET_MASK) << + TPD_CCSUMOFFSET_SHIFT; + ptpd->word3 |= 1 << TPD_CUST_CSUM_EN_SHIFT; + return true; + } + return 0; +} - init_timer(&adapter->phy_config_timer); - adapter->phy_config_timer.function = &atl1_phy_config; - adapter->phy_config_timer.data = (unsigned long)adapter; - adapter->phy_timer_pending = false; +static void atl1_tx_map(struct atl1_adapter *adapter, struct sk_buff *skb, + struct tx_packet_desc *ptpd) +{ + /* spinlock held */ + struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; + struct atl1_buffer *buffer_info; + u16 buf_len = skb->len; + struct page *page; + unsigned long offset; + unsigned int nr_frags; + unsigned int f; + int retval; + u16 next_to_use; + u16 data_len; + u8 hdr_len; - INIT_WORK(&adapter->tx_timeout_task, atl1_tx_timeout_task); + buf_len -= skb->data_len; + nr_frags = skb_shinfo(skb)->nr_frags; + next_to_use = atomic_read(&tpd_ring->next_to_use); + buffer_info = &tpd_ring->buffer_info[next_to_use]; + if (unlikely(buffer_info->skb)) + BUG(); + /* put skb in last TPD */ + buffer_info->skb = NULL; - INIT_WORK(&adapter->link_chg_task, atlx_link_chg_task); + retval = (ptpd->word3 >> TPD_SEGMENT_EN_SHIFT) & TPD_SEGMENT_EN_MASK; + if (retval) { + /* TSO */ + hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + buffer_info->length = hdr_len; + page = virt_to_page(skb->data); + offset = (unsigned long)skb->data & ~PAGE_MASK; + buffer_info->dma = pci_map_page(adapter->pdev, page, + offset, hdr_len, + PCI_DMA_TODEVICE); - INIT_WORK(&adapter->pcie_dma_to_rst_task, atl1_tx_timeout_task); + if (++next_to_use == tpd_ring->count) + next_to_use = 0; - err = register_netdev(netdev); - if (err) - goto err_common; + if (buf_len > hdr_len) { + int i, nseg; - cards_found++; - atl1_via_workaround(adapter); - return 0; + data_len = buf_len - hdr_len; + nseg = (data_len + ATL1_MAX_TX_BUF_LEN - 1) / + ATL1_MAX_TX_BUF_LEN; + for (i = 0; i < nseg; i++) { + buffer_info = + &tpd_ring->buffer_info[next_to_use]; + buffer_info->skb = NULL; + buffer_info->length = + (ATL1_MAX_TX_BUF_LEN >= + data_len) ? ATL1_MAX_TX_BUF_LEN : data_len; + data_len -= buffer_info->length; + page = virt_to_page(skb->data + + (hdr_len + i * ATL1_MAX_TX_BUF_LEN)); + offset = (unsigned long)(skb->data + + (hdr_len + i * ATL1_MAX_TX_BUF_LEN)) & + ~PAGE_MASK; + buffer_info->dma = pci_map_page(adapter->pdev, + page, offset, buffer_info->length, + PCI_DMA_TODEVICE); + if (++next_to_use == tpd_ring->count) + next_to_use = 0; + } + } + } else { + /* not TSO */ + buffer_info->length = buf_len; + page = virt_to_page(skb->data); + offset = (unsigned long)skb->data & ~PAGE_MASK; + buffer_info->dma = pci_map_page(adapter->pdev, page, + offset, buf_len, PCI_DMA_TODEVICE); + if (++next_to_use == tpd_ring->count) + next_to_use = 0; + } -err_common: - pci_iounmap(pdev, adapter->hw.hw_addr); -err_pci_iomap: - free_netdev(netdev); -err_alloc_etherdev: - pci_release_regions(pdev); -err_dma: -err_request_regions: - pci_disable_device(pdev); - return err; -} + for (f = 0; f < nr_frags; f++) { + struct skb_frag_struct *frag; + u16 i, nseg; -/* - * atl1_remove - Device Removal Routine - * @pdev: PCI device information struct - * - * atl1_remove is called by the PCI subsystem to alert the driver - * that it should release a PCI device. The could be caused by a - * Hot-Plug event, or because the driver is going to be removed from - * memory. - */ -static void __devexit atl1_remove(struct pci_dev *pdev) -{ - struct net_device *netdev = pci_get_drvdata(pdev); - struct atl1_adapter *adapter; - /* Device not available. Return. */ - if (!netdev) - return; + frag = &skb_shinfo(skb)->frags[f]; + buf_len = frag->size; - adapter = netdev_priv(netdev); + nseg = (buf_len + ATL1_MAX_TX_BUF_LEN - 1) / + ATL1_MAX_TX_BUF_LEN; + for (i = 0; i < nseg; i++) { + buffer_info = &tpd_ring->buffer_info[next_to_use]; + if (unlikely(buffer_info->skb)) + BUG(); + buffer_info->skb = NULL; + buffer_info->length = (buf_len > ATL1_MAX_TX_BUF_LEN) ? + ATL1_MAX_TX_BUF_LEN : buf_len; + buf_len -= buffer_info->length; + buffer_info->dma = pci_map_page(adapter->pdev, + frag->page, + frag->page_offset + (i * ATL1_MAX_TX_BUF_LEN), + buffer_info->length, PCI_DMA_TODEVICE); - /* - * Some atl1 boards lack persistent storage for their MAC, and get it - * from the BIOS during POST. If we've been messing with the MAC - * address, we need to save the permanent one. - */ - if (memcmp(adapter->hw.mac_addr, adapter->hw.perm_mac_addr, ETH_ALEN)) { - memcpy(adapter->hw.mac_addr, adapter->hw.perm_mac_addr, - ETH_ALEN); - atl1_set_mac_addr(&adapter->hw); + if (++next_to_use == tpd_ring->count) + next_to_use = 0; + } } - iowrite16(0, adapter->hw.hw_addr + REG_PHY_ENABLE); - unregister_netdev(netdev); - pci_iounmap(pdev, adapter->hw.hw_addr); - pci_release_regions(pdev); - free_netdev(netdev); - pci_disable_device(pdev); + /* last tpd's buffer-info */ + buffer_info->skb = skb; } -static struct pci_driver atl1_driver = { - .name = ATLX_DRIVER_NAME, - .id_table = atl1_pci_tbl, - .probe = atl1_probe, - .remove = __devexit_p(atl1_remove), - .suspend = atl1_suspend, - .resume = atl1_resume -}; - -/* - * atl1_exit_module - Driver Exit Cleanup Routine - * - * atl1_exit_module is called just before the driver is removed - * from memory. - */ -static void __exit atl1_exit_module(void) +static void atl1_tx_queue(struct atl1_adapter *adapter, u16 count, + struct tx_packet_desc *ptpd) { - pci_unregister_driver(&atl1_driver); -} + /* spinlock held */ + struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; + struct atl1_buffer *buffer_info; + struct tx_packet_desc *tpd; + u16 j; + u32 val; + u16 next_to_use = (u16) atomic_read(&tpd_ring->next_to_use); -/* - * atl1_init_module - Driver Registration Routine - * - * atl1_init_module is the first routine called when the driver is - * loaded. All it does is register with the PCI subsystem. - */ -static int __init atl1_init_module(void) -{ - return pci_register_driver(&atl1_driver); -} + for (j = 0; j < count; j++) { + buffer_info = &tpd_ring->buffer_info[next_to_use]; + tpd = ATL1_TPD_DESC(&adapter->tpd_ring, next_to_use); + if (tpd != ptpd) + memcpy(tpd, ptpd, sizeof(struct tx_packet_desc)); + tpd->buffer_addr = cpu_to_le64(buffer_info->dma); + tpd->word2 = (cpu_to_le16(buffer_info->length) & + TPD_BUFLEN_MASK) << TPD_BUFLEN_SHIFT; -module_init(atl1_init_module); -module_exit(atl1_exit_module); + /* + * if this is the first packet in a TSO chain, set + * TPD_HDRFLAG, otherwise, clear it. + */ + val = (tpd->word3 >> TPD_SEGMENT_EN_SHIFT) & + TPD_SEGMENT_EN_MASK; + if (val) { + if (!j) + tpd->word3 |= 1 << TPD_HDRFLAG_SHIFT; + else + tpd->word3 &= ~(1 << TPD_HDRFLAG_SHIFT); + } -struct atl1_stats { - char stat_string[ETH_GSTRING_LEN]; - int sizeof_stat; - int stat_offset; -}; + if (j == (count - 1)) + tpd->word3 |= 1 << TPD_EOP_SHIFT; -#define ATL1_STAT(m) \ - sizeof(((struct atl1_adapter *)0)->m), offsetof(struct atl1_adapter, m) + if (++next_to_use == tpd_ring->count) + next_to_use = 0; + } + /* + * Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). + */ + wmb(); -static struct atl1_stats atl1_gstrings_stats[] = { - {"rx_packets", ATL1_STAT(soft_stats.rx_packets)}, - {"tx_packets", ATL1_STAT(soft_stats.tx_packets)}, - {"rx_bytes", ATL1_STAT(soft_stats.rx_bytes)}, - {"tx_bytes", ATL1_STAT(soft_stats.tx_bytes)}, - {"rx_errors", ATL1_STAT(soft_stats.rx_errors)}, - {"tx_errors", ATL1_STAT(soft_stats.tx_errors)}, - {"rx_dropped", ATL1_STAT(net_stats.rx_dropped)}, - {"tx_dropped", ATL1_STAT(net_stats.tx_dropped)}, - {"multicast", ATL1_STAT(soft_stats.multicast)}, - {"collisions", ATL1_STAT(soft_stats.collisions)}, - {"rx_length_errors", ATL1_STAT(soft_stats.rx_length_errors)}, - {"rx_over_errors", ATL1_STAT(soft_stats.rx_missed_errors)}, - {"rx_crc_errors", ATL1_STAT(soft_stats.rx_crc_errors)}, - {"rx_frame_errors", ATL1_STAT(soft_stats.rx_frame_errors)}, - {"rx_fifo_errors", ATL1_STAT(soft_stats.rx_fifo_errors)}, - {"rx_missed_errors", ATL1_STAT(soft_stats.rx_missed_errors)}, - {"tx_aborted_errors", ATL1_STAT(soft_stats.tx_aborted_errors)}, - {"tx_carrier_errors", ATL1_STAT(soft_stats.tx_carrier_errors)}, - {"tx_fifo_errors", ATL1_STAT(soft_stats.tx_fifo_errors)}, - {"tx_window_errors", ATL1_STAT(soft_stats.tx_window_errors)}, - {"tx_abort_exce_coll", ATL1_STAT(soft_stats.excecol)}, - {"tx_abort_late_coll", ATL1_STAT(soft_stats.latecol)}, - {"tx_deferred_ok", ATL1_STAT(soft_stats.deffer)}, - {"tx_single_coll_ok", ATL1_STAT(soft_stats.scc)}, - {"tx_multi_coll_ok", ATL1_STAT(soft_stats.mcc)}, - {"tx_underun", ATL1_STAT(soft_stats.tx_underun)}, - {"tx_trunc", ATL1_STAT(soft_stats.tx_trunc)}, - {"tx_pause", ATL1_STAT(soft_stats.tx_pause)}, - {"rx_pause", ATL1_STAT(soft_stats.rx_pause)}, - {"rx_rrd_ov", ATL1_STAT(soft_stats.rx_rrd_ov)}, - {"rx_trunc", ATL1_STAT(soft_stats.rx_trunc)} -}; + atomic_set(&tpd_ring->next_to_use, next_to_use); +} -static void atl1_get_ethtool_stats(struct net_device *netdev, - struct ethtool_stats *stats, u64 *data) +static int atl1_xmit_frame(struct sk_buff *skb, struct net_device *netdev) { struct atl1_adapter *adapter = netdev_priv(netdev); - int i; - char *p; + struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring; + int len = skb->len; + int tso; + int count = 1; + int ret_val; + struct tx_packet_desc *ptpd; + u16 frag_size; + u16 vlan_tag; + unsigned long flags; + unsigned int nr_frags = 0; + unsigned int mss = 0; + unsigned int f; + unsigned int proto_hdr_len; + + len -= skb->data_len; + + if (unlikely(skb->len <= 0)) { + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } - for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) { - p = (char *)adapter+atl1_gstrings_stats[i].stat_offset; - data[i] = (atl1_gstrings_stats[i].sizeof_stat == - sizeof(u64)) ? *(u64 *)p : *(u32 *)p; + nr_frags = skb_shinfo(skb)->nr_frags; + for (f = 0; f < nr_frags; f++) { + frag_size = skb_shinfo(skb)->frags[f].size; + if (frag_size) + count += (frag_size + ATL1_MAX_TX_BUF_LEN - 1) / + ATL1_MAX_TX_BUF_LEN; } -} + mss = skb_shinfo(skb)->gso_size; + if (mss) { + if (skb->protocol == ntohs(ETH_P_IP)) { + proto_hdr_len = (skb_transport_offset(skb) + + tcp_hdrlen(skb)); + if (unlikely(proto_hdr_len > len)) { + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + /* need additional TPD ? */ + if (proto_hdr_len != len) + count += (len - proto_hdr_len + + ATL1_MAX_TX_BUF_LEN - 1) / + ATL1_MAX_TX_BUF_LEN; + } + } -static int atl1_get_sset_count(struct net_device *netdev, int sset) -{ - switch (sset) { - case ETH_SS_STATS: - return ARRAY_SIZE(atl1_gstrings_stats); - default: - return -EOPNOTSUPP; + if (!spin_trylock_irqsave(&adapter->lock, flags)) { + /* Can't get lock - tell upper layer to requeue */ + if (netif_msg_tx_queued(adapter)) + dev_printk(KERN_DEBUG, &adapter->pdev->dev, + "tx locked\n"); + return NETDEV_TX_LOCKED; } -} -static int atl1_get_settings(struct net_device *netdev, - struct ethtool_cmd *ecmd) -{ - struct atl1_adapter *adapter = netdev_priv(netdev); - struct atl1_hw *hw = &adapter->hw; + if (atl1_tpd_avail(&adapter->tpd_ring) < count) { + /* not enough descriptors */ + netif_stop_queue(netdev); + spin_unlock_irqrestore(&adapter->lock, flags); + if (netif_msg_tx_queued(adapter)) + dev_printk(KERN_DEBUG, &adapter->pdev->dev, + "tx busy\n"); + return NETDEV_TX_BUSY; + } - ecmd->supported = (SUPPORTED_10baseT_Half | - SUPPORTED_10baseT_Full | - SUPPORTED_100baseT_Half | - SUPPORTED_100baseT_Full | - SUPPORTED_1000baseT_Full | - SUPPORTED_Autoneg | SUPPORTED_TP); - ecmd->advertising = ADVERTISED_TP; - if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR || - hw->media_type == MEDIA_TYPE_1000M_FULL) { - ecmd->advertising |= ADVERTISED_Autoneg; - if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR) { - ecmd->advertising |= ADVERTISED_Autoneg; - ecmd->advertising |= - (ADVERTISED_10baseT_Half | - ADVERTISED_10baseT_Full | - ADVERTISED_100baseT_Half | - ADVERTISED_100baseT_Full | - ADVERTISED_1000baseT_Full); - } else - ecmd->advertising |= (ADVERTISED_1000baseT_Full); + ptpd = ATL1_TPD_DESC(tpd_ring, + (u16) atomic_read(&tpd_ring->next_to_use)); + memset(ptpd, 0, sizeof(struct tx_packet_desc)); + + if (adapter->vlgrp && vlan_tx_tag_present(skb)) { + vlan_tag = vlan_tx_tag_get(skb); + vlan_tag = (vlan_tag << 4) | (vlan_tag >> 13) | + ((vlan_tag >> 9) & 0x8); + ptpd->word3 |= 1 << TPD_INS_VL_TAG_SHIFT; + ptpd->word3 |= (vlan_tag & TPD_VL_TAGGED_MASK) << + TPD_VL_TAGGED_SHIFT; } - ecmd->port = PORT_TP; - ecmd->phy_address = 0; - ecmd->transceiver = XCVR_INTERNAL; - if (netif_carrier_ok(adapter->netdev)) { - u16 link_speed, link_duplex; - atl1_get_speed_and_duplex(hw, &link_speed, &link_duplex); - ecmd->speed = link_speed; - if (link_duplex == FULL_DUPLEX) - ecmd->duplex = DUPLEX_FULL; - else - ecmd->duplex = DUPLEX_HALF; - } else { - ecmd->speed = -1; - ecmd->duplex = -1; + tso = atl1_tso(adapter, skb, ptpd); + if (tso < 0) { + spin_unlock_irqrestore(&adapter->lock, flags); + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; } - if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR || - hw->media_type == MEDIA_TYPE_1000M_FULL) - ecmd->autoneg = AUTONEG_ENABLE; - else - ecmd->autoneg = AUTONEG_DISABLE; - return 0; + if (!tso) { + ret_val = atl1_tx_csum(adapter, skb, ptpd); + if (ret_val < 0) { + spin_unlock_irqrestore(&adapter->lock, flags); + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + } + + atl1_tx_map(adapter, skb, ptpd); + atl1_tx_queue(adapter, count, ptpd); + atl1_update_mailbox(adapter); + spin_unlock_irqrestore(&adapter->lock, flags); + netdev->trans_start = jiffies; + return NETDEV_TX_OK; } -static int atl1_set_settings(struct net_device *netdev, - struct ethtool_cmd *ecmd) +/* + * atl1_intr - Interrupt Handler + * @irq: interrupt number + * @data: pointer to a network interface device structure + * @pt_regs: CPU registers structure + */ +static irqreturn_t atl1_intr(int irq, void *data) { - struct atl1_adapter *adapter = netdev_priv(netdev); - struct atl1_hw *hw = &adapter->hw; - u16 phy_data; - int ret_val = 0; - u16 old_media_type = hw->media_type; + struct atl1_adapter *adapter = netdev_priv(data); + u32 status; + u8 update_rx; + int max_ints = 10; - if (netif_running(adapter->netdev)) { - if (netif_msg_link(adapter)) - dev_dbg(&adapter->pdev->dev, - "ethtool shutting down adapter\n"); - atl1_down(adapter); - } + status = adapter->cmb.cmb->int_stats; + if (!status) + return IRQ_NONE; - if (ecmd->autoneg == AUTONEG_ENABLE) - hw->media_type = MEDIA_TYPE_AUTO_SENSOR; - else { - if (ecmd->speed == SPEED_1000) { - if (ecmd->duplex != DUPLEX_FULL) { - if (netif_msg_link(adapter)) - dev_warn(&adapter->pdev->dev, - "1000M half is invalid\n"); - ret_val = -EINVAL; - goto exit_sset; + update_rx = 0; + + do { + /* clear CMB interrupt status at once */ + adapter->cmb.cmb->int_stats = 0; + + if (status & ISR_GPHY) /* clear phy status */ + atlx_clear_phy_int(adapter); + + /* clear ISR status, and Enable CMB DMA/Disable Interrupt */ + iowrite32(status | ISR_DIS_INT, adapter->hw.hw_addr + REG_ISR); + + /* check if SMB intr */ + if (status & ISR_SMB) + atl1_inc_smb(adapter); + + /* check if PCIE PHY Link down */ + if (status & ISR_PHY_LINKDOWN) { + if (netif_msg_intr(adapter)) + dev_printk(KERN_DEBUG, &adapter->pdev->dev, + "pcie phy link down %x\n", status); + if (netif_running(adapter->netdev)) { /* reset MAC */ + iowrite32(0, adapter->hw.hw_addr + REG_IMR); + schedule_work(&adapter->pcie_dma_to_rst_task); + return IRQ_HANDLED; } - hw->media_type = MEDIA_TYPE_1000M_FULL; - } else if (ecmd->speed == SPEED_100) { - if (ecmd->duplex == DUPLEX_FULL) - hw->media_type = MEDIA_TYPE_100M_FULL; - else - hw->media_type = MEDIA_TYPE_100M_HALF; - } else { - if (ecmd->duplex == DUPLEX_FULL) - hw->media_type = MEDIA_TYPE_10M_FULL; - else - hw->media_type = MEDIA_TYPE_10M_HALF; } - } - switch (hw->media_type) { - case MEDIA_TYPE_AUTO_SENSOR: - ecmd->advertising = - ADVERTISED_10baseT_Half | - ADVERTISED_10baseT_Full | - ADVERTISED_100baseT_Half | - ADVERTISED_100baseT_Full | - ADVERTISED_1000baseT_Full | - ADVERTISED_Autoneg | ADVERTISED_TP; - break; - case MEDIA_TYPE_1000M_FULL: - ecmd->advertising = - ADVERTISED_1000baseT_Full | - ADVERTISED_Autoneg | ADVERTISED_TP; - break; - default: - ecmd->advertising = 0; - break; - } - if (atl1_phy_setup_autoneg_adv(hw)) { - ret_val = -EINVAL; - if (netif_msg_link(adapter)) - dev_warn(&adapter->pdev->dev, - "invalid ethtool speed/duplex setting\n"); - goto exit_sset; - } - if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR || - hw->media_type == MEDIA_TYPE_1000M_FULL) - phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN; - else { - switch (hw->media_type) { - case MEDIA_TYPE_100M_FULL: - phy_data = - MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 | - MII_CR_RESET; - break; - case MEDIA_TYPE_100M_HALF: - phy_data = MII_CR_SPEED_100 | MII_CR_RESET; - break; - case MEDIA_TYPE_10M_FULL: - phy_data = - MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET; - break; - default: - /* MEDIA_TYPE_10M_HALF: */ - phy_data = MII_CR_SPEED_10 | MII_CR_RESET; - break; + + /* check if DMA read/write error ? */ + if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) { + if (netif_msg_intr(adapter)) + dev_printk(KERN_DEBUG, &adapter->pdev->dev, + "pcie DMA r/w error (status = 0x%x)\n", + status); + iowrite32(0, adapter->hw.hw_addr + REG_IMR); + schedule_work(&adapter->pcie_dma_to_rst_task); + return IRQ_HANDLED; } - } - atl1_write_phy_reg(hw, MII_BMCR, phy_data); -exit_sset: - if (ret_val) - hw->media_type = old_media_type; - if (netif_running(adapter->netdev)) { - if (netif_msg_link(adapter)) - dev_dbg(&adapter->pdev->dev, - "ethtool starting adapter\n"); - atl1_up(adapter); - } else if (!ret_val) { - if (netif_msg_link(adapter)) - dev_dbg(&adapter->pdev->dev, - "ethtool resetting adapter\n"); - atl1_reset(adapter); - } - return ret_val; -} + /* link event */ + if (status & ISR_GPHY) { + adapter->soft_stats.tx_carrier_errors++; + atl1_check_for_link(adapter); + } -static void atl1_get_drvinfo(struct net_device *netdev, - struct ethtool_drvinfo *drvinfo) -{ - struct atl1_adapter *adapter = netdev_priv(netdev); + /* transmit event */ + if (status & ISR_CMB_TX) + atl1_intr_tx(adapter); - strncpy(drvinfo->driver, ATLX_DRIVER_NAME, sizeof(drvinfo->driver)); - strncpy(drvinfo->version, ATLX_DRIVER_VERSION, - sizeof(drvinfo->version)); - strncpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); - strncpy(drvinfo->bus_info, pci_name(adapter->pdev), - sizeof(drvinfo->bus_info)); - drvinfo->eedump_len = ATL1_EEDUMP_LEN; -} + /* rx exception */ + if (unlikely(status & (ISR_RXF_OV | ISR_RFD_UNRUN | + ISR_RRD_OV | ISR_HOST_RFD_UNRUN | + ISR_HOST_RRD_OV | ISR_CMB_RX))) { + if (status & (ISR_RXF_OV | ISR_RFD_UNRUN | + ISR_RRD_OV | ISR_HOST_RFD_UNRUN | + ISR_HOST_RRD_OV)) + if (netif_msg_intr(adapter)) + dev_printk(KERN_DEBUG, + &adapter->pdev->dev, + "rx exception, ISR = 0x%x\n", + status); + atl1_intr_rx(adapter); + } -static void atl1_get_wol(struct net_device *netdev, - struct ethtool_wolinfo *wol) -{ - struct atl1_adapter *adapter = netdev_priv(netdev); + if (--max_ints < 0) + break; - wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC; - wol->wolopts = 0; - if (adapter->wol & ATLX_WUFC_EX) - wol->wolopts |= WAKE_UCAST; - if (adapter->wol & ATLX_WUFC_MC) - wol->wolopts |= WAKE_MCAST; - if (adapter->wol & ATLX_WUFC_BC) - wol->wolopts |= WAKE_BCAST; - if (adapter->wol & ATLX_WUFC_MAG) - wol->wolopts |= WAKE_MAGIC; - return; + } while ((status = adapter->cmb.cmb->int_stats)); + + /* re-enable Interrupt */ + iowrite32(ISR_DIS_SMB | ISR_DIS_DMA, adapter->hw.hw_addr + REG_ISR); + return IRQ_HANDLED; } -static int atl1_set_wol(struct net_device *netdev, - struct ethtool_wolinfo *wol) +/* + * atl1_watchdog - Timer Call-back + * @data: pointer to netdev cast into an unsigned long + */ +static void atl1_watchdog(unsigned long data) { - struct atl1_adapter *adapter = netdev_priv(netdev); + struct atl1_adapter *adapter = (struct atl1_adapter *)data; - if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)) - return -EOPNOTSUPP; - adapter->wol = 0; - if (wol->wolopts & WAKE_UCAST) - adapter->wol |= ATLX_WUFC_EX; - if (wol->wolopts & WAKE_MCAST) - adapter->wol |= ATLX_WUFC_MC; - if (wol->wolopts & WAKE_BCAST) - adapter->wol |= ATLX_WUFC_BC; - if (wol->wolopts & WAKE_MAGIC) - adapter->wol |= ATLX_WUFC_MAG; - return 0; + /* Reset the timer */ + mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); } -static u32 atl1_get_msglevel(struct net_device *netdev) +/* + * atl1_phy_config - Timer Call-back + * @data: pointer to netdev cast into an unsigned long + */ +static void atl1_phy_config(unsigned long data) { - struct atl1_adapter *adapter = netdev_priv(netdev); - return adapter->msg_enable; -} + struct atl1_adapter *adapter = (struct atl1_adapter *)data; + struct atl1_hw *hw = &adapter->hw; + unsigned long flags; -static void atl1_set_msglevel(struct net_device *netdev, u32 value) -{ - struct atl1_adapter *adapter = netdev_priv(netdev); - adapter->msg_enable = value; + spin_lock_irqsave(&adapter->lock, flags); + adapter->phy_timer_pending = false; + atl1_write_phy_reg(hw, MII_ADVERTISE, hw->mii_autoneg_adv_reg); + atl1_write_phy_reg(hw, MII_ATLX_CR, hw->mii_1000t_ctrl_reg); + atl1_write_phy_reg(hw, MII_BMCR, MII_CR_RESET | MII_CR_AUTO_NEG_EN); + spin_unlock_irqrestore(&adapter->lock, flags); } -static int atl1_get_regs_len(struct net_device *netdev) -{ - return ATL1_REG_COUNT * sizeof(u32); -} +/* + * Orphaned vendor comment left intact here: + * + * If TPD Buffer size equal to 0, PCIE DMAR_TO_INT + * will assert. We do soft reset <0x1400=1> according + * with the SPEC. BUT, it seemes that PCIE or DMA + * state-machine will not be reset. DMAR_TO_INT will + * assert again and again. + * + */ -static void atl1_get_regs(struct net_device *netdev, struct ethtool_regs *regs, - void *p) +static int atl1_reset(struct atl1_adapter *adapter) { - struct atl1_adapter *adapter = netdev_priv(netdev); - struct atl1_hw *hw = &adapter->hw; - unsigned int i; - u32 *regbuf = p; - - for (i = 0; i < ATL1_REG_COUNT; i++) { - /* - * This switch statement avoids reserved regions - * of register space. - */ - switch (i) { - case 6 ... 9: - case 14: - case 29 ... 31: - case 34 ... 63: - case 75 ... 127: - case 136 ... 1023: - case 1027 ... 1087: - case 1091 ... 1151: - case 1194 ... 1195: - case 1200 ... 1201: - case 1206 ... 1213: - case 1216 ... 1279: - case 1290 ... 1311: - case 1323 ... 1343: - case 1358 ... 1359: - case 1368 ... 1375: - case 1378 ... 1383: - case 1388 ... 1391: - case 1393 ... 1395: - case 1402 ... 1403: - case 1410 ... 1471: - case 1522 ... 1535: - /* reserved region; don't read it */ - regbuf[i] = 0; - break; - default: - /* unreserved region */ - regbuf[i] = ioread32(hw->hw_addr + (i * sizeof(u32))); - } - } + int ret; + ret = atl1_reset_hw(&adapter->hw); + if (ret) + return ret; + return atl1_init_hw(&adapter->hw); } -static void atl1_get_ringparam(struct net_device *netdev, - struct ethtool_ringparam *ring) +static s32 atl1_up(struct atl1_adapter *adapter) { - struct atl1_adapter *adapter = netdev_priv(netdev); - struct atl1_tpd_ring *txdr = &adapter->tpd_ring; - struct atl1_rfd_ring *rxdr = &adapter->rfd_ring; + struct net_device *netdev = adapter->netdev; + int err; + int irq_flags = IRQF_SAMPLE_RANDOM; - ring->rx_max_pending = ATL1_MAX_RFD; - ring->tx_max_pending = ATL1_MAX_TPD; - ring->rx_mini_max_pending = 0; - ring->rx_jumbo_max_pending = 0; - ring->rx_pending = rxdr->count; - ring->tx_pending = txdr->count; - ring->rx_mini_pending = 0; - ring->rx_jumbo_pending = 0; -} + /* hardware has been reset, we need to reload some things */ + atlx_set_multi(netdev); + atl1_init_ring_ptrs(adapter); + atlx_restore_vlan(adapter); + err = atl1_alloc_rx_buffers(adapter); + if (unlikely(!err)) + /* no RX BUFFER allocated */ + return -ENOMEM; -static int atl1_set_ringparam(struct net_device *netdev, - struct ethtool_ringparam *ring) -{ - struct atl1_adapter *adapter = netdev_priv(netdev); - struct atl1_tpd_ring *tpdr = &adapter->tpd_ring; - struct atl1_rrd_ring *rrdr = &adapter->rrd_ring; - struct atl1_rfd_ring *rfdr = &adapter->rfd_ring; + if (unlikely(atl1_configure(adapter))) { + err = -EIO; + goto err_up; + } - struct atl1_tpd_ring tpd_old, tpd_new; - struct atl1_rfd_ring rfd_old, rfd_new; - struct atl1_rrd_ring rrd_old, rrd_new; - struct atl1_ring_header rhdr_old, rhdr_new; - int err; + err = pci_enable_msi(adapter->pdev); + if (err) { + if (netif_msg_ifup(adapter)) + dev_info(&adapter->pdev->dev, + "Unable to enable MSI: %d\n", err); + irq_flags |= IRQF_SHARED; + } - tpd_old = adapter->tpd_ring; - rfd_old = adapter->rfd_ring; - rrd_old = adapter->rrd_ring; - rhdr_old = adapter->ring_header; + err = request_irq(adapter->pdev->irq, &atl1_intr, irq_flags, + netdev->name, netdev); + if (unlikely(err)) + goto err_up; - if (netif_running(adapter->netdev)) - atl1_down(adapter); + mod_timer(&adapter->watchdog_timer, jiffies); + atlx_irq_enable(adapter); + atl1_check_link(adapter); + return 0; - rfdr->count = (u16) max(ring->rx_pending, (u32) ATL1_MIN_RFD); - rfdr->count = rfdr->count > ATL1_MAX_RFD ? ATL1_MAX_RFD : - rfdr->count; - rfdr->count = (rfdr->count + 3) & ~3; - rrdr->count = rfdr->count; +err_up: + pci_disable_msi(adapter->pdev); + /* free rx_buffers */ + atl1_clean_rx_ring(adapter); + return err; +} - tpdr->count = (u16) max(ring->tx_pending, (u32) ATL1_MIN_TPD); - tpdr->count = tpdr->count > ATL1_MAX_TPD ? ATL1_MAX_TPD : - tpdr->count; - tpdr->count = (tpdr->count + 3) & ~3; +static void atl1_down(struct atl1_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; - if (netif_running(adapter->netdev)) { - /* try to get new resources before deleting old */ - err = atl1_setup_ring_resources(adapter); - if (err) - goto err_setup_ring; + del_timer_sync(&adapter->watchdog_timer); + del_timer_sync(&adapter->phy_config_timer); + adapter->phy_timer_pending = false; - /* - * save the new, restore the old in order to free it, - * then restore the new back again - */ + atlx_irq_disable(adapter); + free_irq(adapter->pdev->irq, netdev); + pci_disable_msi(adapter->pdev); + atl1_reset_hw(&adapter->hw); + adapter->cmb.cmb->int_stats = 0; - rfd_new = adapter->rfd_ring; - rrd_new = adapter->rrd_ring; - tpd_new = adapter->tpd_ring; - rhdr_new = adapter->ring_header; - adapter->rfd_ring = rfd_old; - adapter->rrd_ring = rrd_old; - adapter->tpd_ring = tpd_old; - adapter->ring_header = rhdr_old; - atl1_free_ring_resources(adapter); - adapter->rfd_ring = rfd_new; - adapter->rrd_ring = rrd_new; - adapter->tpd_ring = tpd_new; - adapter->ring_header = rhdr_new; + adapter->link_speed = SPEED_0; + adapter->link_duplex = -1; + netif_carrier_off(netdev); + netif_stop_queue(netdev); - err = atl1_up(adapter); - if (err) - return err; - } - return 0; + atl1_clean_tx_ring(adapter); + atl1_clean_rx_ring(adapter); +} -err_setup_ring: - adapter->rfd_ring = rfd_old; - adapter->rrd_ring = rrd_old; - adapter->tpd_ring = tpd_old; - adapter->ring_header = rhdr_old; +static void atl1_tx_timeout_task(struct work_struct *work) +{ + struct atl1_adapter *adapter = + container_of(work, struct atl1_adapter, tx_timeout_task); + struct net_device *netdev = adapter->netdev; + + netif_device_detach(netdev); + atl1_down(adapter); atl1_up(adapter); - return err; + netif_device_attach(netdev); } -static void atl1_get_pauseparam(struct net_device *netdev, - struct ethtool_pauseparam *epause) +/* + * atl1_change_mtu - Change the Maximum Transfer Unit + * @netdev: network interface device structure + * @new_mtu: new value for maximum frame size + * + * Returns 0 on success, negative on failure + */ +static int atl1_change_mtu(struct net_device *netdev, int new_mtu) { struct atl1_adapter *adapter = netdev_priv(netdev); - struct atl1_hw *hw = &adapter->hw; + int old_mtu = netdev->mtu; + int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; - if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR || - hw->media_type == MEDIA_TYPE_1000M_FULL) { - epause->autoneg = AUTONEG_ENABLE; - } else { - epause->autoneg = AUTONEG_DISABLE; + if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) || + (max_frame > MAX_JUMBO_FRAME_SIZE)) { + if (netif_msg_link(adapter)) + dev_warn(&adapter->pdev->dev, "invalid MTU setting\n"); + return -EINVAL; } - epause->rx_pause = 1; - epause->tx_pause = 1; + + adapter->hw.max_frame_size = max_frame; + adapter->hw.tx_jumbo_task_th = (max_frame + 7) >> 3; + adapter->rx_buffer_len = (max_frame + 7) & ~7; + adapter->hw.rx_jumbo_th = adapter->rx_buffer_len / 8; + + netdev->mtu = new_mtu; + if ((old_mtu != new_mtu) && netif_running(netdev)) { + atl1_down(adapter); + atl1_up(adapter); + } + + return 0; } -static int atl1_set_pauseparam(struct net_device *netdev, - struct ethtool_pauseparam *epause) +/* + * atl1_open - Called when a network interface is made active + * @netdev: network interface device structure + * + * Returns 0 on success, negative value on failure + * + * The open entry point is called when a network interface is made + * active by the system (IFF_UP). At this point all resources needed + * for transmit and receive operations are allocated, the interrupt + * handler is registered with the OS, the watchdog timer is started, + * and the stack is notified that the interface is ready. + */ +static int atl1_open(struct net_device *netdev) { struct atl1_adapter *adapter = netdev_priv(netdev); - struct atl1_hw *hw = &adapter->hw; + int err; - if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR || - hw->media_type == MEDIA_TYPE_1000M_FULL) { - epause->autoneg = AUTONEG_ENABLE; - } else { - epause->autoneg = AUTONEG_DISABLE; - } + /* allocate transmit descriptors */ + err = atl1_setup_ring_resources(adapter); + if (err) + return err; - epause->rx_pause = 1; - epause->tx_pause = 1; + err = atl1_up(adapter); + if (err) + goto err_up; return 0; -} -/* FIXME: is this right? -- CHS */ -static u32 atl1_get_rx_csum(struct net_device *netdev) -{ - return 1; +err_up: + atl1_reset(adapter); + return err; } -static void atl1_get_strings(struct net_device *netdev, u32 stringset, - u8 *data) +/* + * atl1_close - Disables a network interface + * @netdev: network interface device structure + * + * Returns 0, this is not allowed to fail + * + * The close entry point is called when an interface is de-activated + * by the OS. The hardware is still under the drivers control, but + * needs to be disabled. A global MAC reset is issued to stop the + * hardware, and all transmit and receive resources are freed. + */ +static int atl1_close(struct net_device *netdev) { - u8 *p = data; - int i; - - switch (stringset) { - case ETH_SS_STATS: - for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) { - memcpy(p, atl1_gstrings_stats[i].stat_string, - ETH_GSTRING_LEN); - p += ETH_GSTRING_LEN; - } - break; - } + struct atl1_adapter *adapter = netdev_priv(netdev); + atl1_down(adapter); + atl1_free_ring_resources(adapter); + return 0; } -static int atl1_nway_reset(struct net_device *netdev) +#ifdef CONFIG_PM +static int atl1_suspend(struct pci_dev *pdev, pm_message_t state) { + struct net_device *netdev = pci_get_drvdata(pdev); struct atl1_adapter *adapter = netdev_priv(netdev); struct atl1_hw *hw = &adapter->hw; + u32 ctrl = 0; + u32 wufc = adapter->wol; - if (netif_running(netdev)) { - u16 phy_data; + netif_device_detach(netdev); + if (netif_running(netdev)) atl1_down(adapter); - if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR || - hw->media_type == MEDIA_TYPE_1000M_FULL) { - phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN; - } else { - switch (hw->media_type) { - case MEDIA_TYPE_100M_FULL: - phy_data = MII_CR_FULL_DUPLEX | - MII_CR_SPEED_100 | MII_CR_RESET; - break; - case MEDIA_TYPE_100M_HALF: - phy_data = MII_CR_SPEED_100 | MII_CR_RESET; - break; - case MEDIA_TYPE_10M_FULL: - phy_data = MII_CR_FULL_DUPLEX | - MII_CR_SPEED_10 | MII_CR_RESET; - break; - default: - /* MEDIA_TYPE_10M_HALF */ - phy_data = MII_CR_SPEED_10 | MII_CR_RESET; - } - } - atl1_write_phy_reg(hw, MII_BMCR, phy_data); - atl1_up(adapter); - } - return 0; -} - -const struct ethtool_ops atl1_ethtool_ops = { - .get_settings = atl1_get_settings, - .set_settings = atl1_set_settings, - .get_drvinfo = atl1_get_drvinfo, - .get_wol = atl1_get_wol, - .set_wol = atl1_set_wol, - .get_msglevel = atl1_get_msglevel, - .set_msglevel = atl1_set_msglevel, - .get_regs_len = atl1_get_regs_len, - .get_regs = atl1_get_regs, - .get_ringparam = atl1_get_ringparam, - .set_ringparam = atl1_set_ringparam, - .get_pauseparam = atl1_get_pauseparam, - .set_pauseparam = atl1_set_pauseparam, - .get_rx_csum = atl1_get_rx_csum, - .set_tx_csum = ethtool_op_set_tx_hw_csum, - .get_link = ethtool_op_get_link, - .set_sg = ethtool_op_set_sg, - .get_strings = atl1_get_strings, - .nway_reset = atl1_nway_reset, - .get_ethtool_stats = atl1_get_ethtool_stats, - .get_sset_count = atl1_get_sset_count, - .set_tso = ethtool_op_set_tso, -}; + atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl); + atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl); + if (ctrl & BMSR_LSTATUS) + wufc &= ~ATLX_WUFC_LNKC; -/* - * Reset the transmit and receive units; mask and clear all interrupts. - * hw - Struct containing variables accessed by shared code - * return : 0 or idle status (if error) - */ -s32 atl1_reset_hw(struct atl1_hw *hw) -{ - struct pci_dev *pdev = hw->back->pdev; - struct atl1_adapter *adapter = hw->back; - u32 icr; - int i; + /* reduce speed to 10/100M */ + if (wufc) { + atl1_phy_enter_power_saving(hw); + /* if resume, let driver to re- setup link */ + hw->phy_configured = false; + atl1_set_mac_addr(hw); + atlx_set_multi(netdev); - /* - * Clear Interrupt mask to stop board from generating - * interrupts & Clear any pending interrupt events - */ - /* - * iowrite32(0, hw->hw_addr + REG_IMR); - * iowrite32(0xffffffff, hw->hw_addr + REG_ISR); - */ + ctrl = 0; + /* turn on magic packet wol */ + if (wufc & ATLX_WUFC_MAG) + ctrl = WOL_MAGIC_EN | WOL_MAGIC_PME_EN; - /* - * Issue Soft Reset to the MAC. This will reset the chip's - * transmit, receive, DMA. It will not effect - * the current PCI configuration. The global reset bit is self- - * clearing, and should clear within a microsecond. - */ - iowrite32(MASTER_CTRL_SOFT_RST, hw->hw_addr + REG_MASTER_CTRL); - ioread32(hw->hw_addr + REG_MASTER_CTRL); + /* turn on Link change WOL */ + if (wufc & ATLX_WUFC_LNKC) + ctrl |= (WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN); + iowrite32(ctrl, hw->hw_addr + REG_WOL_CTRL); - iowrite16(1, hw->hw_addr + REG_PHY_ENABLE); - ioread16(hw->hw_addr + REG_PHY_ENABLE); + /* turn on all-multi mode if wake on multicast is enabled */ + ctrl = ioread32(hw->hw_addr + REG_MAC_CTRL); + ctrl &= ~MAC_CTRL_DBG; + ctrl &= ~MAC_CTRL_PROMIS_EN; + if (wufc & ATLX_WUFC_MC) + ctrl |= MAC_CTRL_MC_ALL_EN; + else + ctrl &= ~MAC_CTRL_MC_ALL_EN; - /* delay about 1ms */ - msleep(1); + /* turn on broadcast mode if wake on-BC is enabled */ + if (wufc & ATLX_WUFC_BC) + ctrl |= MAC_CTRL_BC_EN; + else + ctrl &= ~MAC_CTRL_BC_EN; - /* Wait at least 10ms for All module to be Idle */ - for (i = 0; i < 10; i++) { - icr = ioread32(hw->hw_addr + REG_IDLE_STATUS); - if (!icr) - break; - /* delay 1 ms */ - msleep(1); - /* FIXME: still the right way to do this? */ - cpu_relax(); + /* enable RX */ + ctrl |= MAC_CTRL_RX_EN; + iowrite32(ctrl, hw->hw_addr + REG_MAC_CTRL); + pci_enable_wake(pdev, PCI_D3hot, 1); + pci_enable_wake(pdev, PCI_D3cold, 1); + } else { + iowrite32(0, hw->hw_addr + REG_WOL_CTRL); + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); } - if (icr) { - if (netif_msg_hw(adapter)) - dev_dbg(&pdev->dev, "ICR = 0x%x\n", icr); - return icr; - } + pci_save_state(pdev); + pci_disable_device(pdev); + + pci_set_power_state(pdev, PCI_D3hot); return 0; } -/* function about EEPROM - * - * check_eeprom_exist - * return 0 if eeprom exist - */ -static int atl1_check_eeprom_exist(struct atl1_hw *hw) +static int atl1_resume(struct pci_dev *pdev) { - u32 value; - value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL); - if (value & SPI_FLASH_CTRL_EN_VPD) { - value &= ~SPI_FLASH_CTRL_EN_VPD; - iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL); - } + struct net_device *netdev = pci_get_drvdata(pdev); + struct atl1_adapter *adapter = netdev_priv(netdev); + u32 err; - value = ioread16(hw->hw_addr + REG_PCIE_CAP_LIST); - return ((value & 0xFF00) == 0x6C00) ? 0 : 1; -} + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); -static bool atl1_read_eeprom(struct atl1_hw *hw, u32 offset, u32 *p_value) -{ - int i; - u32 control; + /* FIXME: check and handle */ + err = pci_enable_device(pdev); + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); - if (offset & 3) - /* address do not align */ - return false; + iowrite32(0, adapter->hw.hw_addr + REG_WOL_CTRL); + atl1_reset(adapter); - iowrite32(0, hw->hw_addr + REG_VPD_DATA); - control = (offset & VPD_CAP_VPD_ADDR_MASK) << VPD_CAP_VPD_ADDR_SHIFT; - iowrite32(control, hw->hw_addr + REG_VPD_CAP); - ioread32(hw->hw_addr + REG_VPD_CAP); + if (netif_running(netdev)) + atl1_up(adapter); + netif_device_attach(netdev); - for (i = 0; i < 10; i++) { - msleep(2); - control = ioread32(hw->hw_addr + REG_VPD_CAP); - if (control & VPD_CAP_VPD_FLAG) - break; - } - if (control & VPD_CAP_VPD_FLAG) { - *p_value = ioread32(hw->hw_addr + REG_VPD_DATA); - return true; - } - /* timeout */ - return false; + atl1_via_workaround(adapter); + + return 0; +} +#else +#define atl1_suspend NULL +#define atl1_resume NULL +#endif + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void atl1_poll_controller(struct net_device *netdev) +{ + disable_irq(netdev->irq); + atl1_intr(netdev->irq, netdev); + enable_irq(netdev->irq); } +#endif /* - * Reads the value from a PHY register - * hw - Struct containing variables accessed by shared code - * reg_addr - address of the PHY register to read + * atl1_probe - Device Initialization Routine + * @pdev: PCI device information struct + * @ent: entry in atl1_pci_tbl + * + * Returns 0 on success, negative on failure + * + * atl1_probe initializes an adapter identified by a pci_dev structure. + * The OS initialization, configuring of the adapter private structure, + * and a hardware reset occur. */ -s32 atl1_read_phy_reg(struct atl1_hw *hw, u16 reg_addr, u16 *phy_data) +static int __devinit atl1_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) { - u32 val; - int i; + struct net_device *netdev; + struct atl1_adapter *adapter; + static int cards_found = 0; + int err; - val = ((u32) (reg_addr & MDIO_REG_ADDR_MASK)) << MDIO_REG_ADDR_SHIFT | - MDIO_START | MDIO_SUP_PREAMBLE | MDIO_RW | MDIO_CLK_25_4 << - MDIO_CLK_SEL_SHIFT; - iowrite32(val, hw->hw_addr + REG_MDIO_CTRL); - ioread32(hw->hw_addr + REG_MDIO_CTRL); + err = pci_enable_device(pdev); + if (err) + return err; - for (i = 0; i < MDIO_WAIT_TIMES; i++) { - udelay(2); - val = ioread32(hw->hw_addr + REG_MDIO_CTRL); - if (!(val & (MDIO_START | MDIO_BUSY))) - break; + /* + * The atl1 chip can DMA to 64-bit addresses, but it uses a single + * shared register for the high 32 bits, so only a single, aligned, + * 4 GB physical address range can be used at a time. + * + * Supporting 64-bit DMA on this hardware is more trouble than it's + * worth. It is far easier to limit to 32-bit DMA than update + * various kernel subsystems to support the mechanics required by a + * fixed-high-32-bit system. + */ + err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); + if (err) { + dev_err(&pdev->dev, "no usable DMA configuration\n"); + goto err_dma; } - if (!(val & (MDIO_START | MDIO_BUSY))) { - *phy_data = (u16) val; - return 0; + /* + * Mark all PCI regions associated with PCI device + * pdev as being reserved by owner atl1_driver_name + */ + err = pci_request_regions(pdev, ATLX_DRIVER_NAME); + if (err) + goto err_request_regions; + + /* + * Enables bus-mastering on the device and calls + * pcibios_set_master to do the needed arch specific settings + */ + pci_set_master(pdev); + + netdev = alloc_etherdev(sizeof(struct atl1_adapter)); + if (!netdev) { + err = -ENOMEM; + goto err_alloc_etherdev; } - return ATLX_ERR_PHY; -} + SET_NETDEV_DEV(netdev, &pdev->dev); -#define CUSTOM_SPI_CS_SETUP 2 -#define CUSTOM_SPI_CLK_HI 2 -#define CUSTOM_SPI_CLK_LO 2 -#define CUSTOM_SPI_CS_HOLD 2 -#define CUSTOM_SPI_CS_HI 3 + pci_set_drvdata(pdev, netdev); + adapter = netdev_priv(netdev); + adapter->netdev = netdev; + adapter->pdev = pdev; + adapter->hw.back = adapter; + adapter->msg_enable = netif_msg_init(debug, atl1_default_msg); + + adapter->hw.hw_addr = pci_iomap(pdev, 0, 0); + if (!adapter->hw.hw_addr) { + err = -EIO; + goto err_pci_iomap; + } + /* get device revision number */ + adapter->hw.dev_rev = ioread16(adapter->hw.hw_addr + + (REG_MASTER_CTRL + 2)); + if (netif_msg_probe(adapter)) + dev_info(&pdev->dev, "version %s\n", ATLX_DRIVER_VERSION); + + /* set default ring resource counts */ + adapter->rfd_ring.count = adapter->rrd_ring.count = ATL1_DEFAULT_RFD; + adapter->tpd_ring.count = ATL1_DEFAULT_TPD; + + adapter->mii.dev = netdev; + adapter->mii.mdio_read = mdio_read; + adapter->mii.mdio_write = mdio_write; + adapter->mii.phy_id_mask = 0x1f; + adapter->mii.reg_num_mask = 0x1f; + + netdev->open = &atl1_open; + netdev->stop = &atl1_close; + netdev->hard_start_xmit = &atl1_xmit_frame; + netdev->get_stats = &atlx_get_stats; + netdev->set_multicast_list = &atlx_set_multi; + netdev->set_mac_address = &atl1_set_mac; + netdev->change_mtu = &atl1_change_mtu; + netdev->do_ioctl = &atlx_ioctl; + netdev->tx_timeout = &atlx_tx_timeout; + netdev->watchdog_timeo = 5 * HZ; +#ifdef CONFIG_NET_POLL_CONTROLLER + netdev->poll_controller = atl1_poll_controller; +#endif + netdev->vlan_rx_register = atlx_vlan_rx_register; -static bool atl1_spi_read(struct atl1_hw *hw, u32 addr, u32 *buf) -{ - int i; - u32 value; + netdev->ethtool_ops = &atl1_ethtool_ops; + adapter->bd_number = cards_found; - iowrite32(0, hw->hw_addr + REG_SPI_DATA); - iowrite32(addr, hw->hw_addr + REG_SPI_ADDR); + /* setup the private structure */ + err = atl1_sw_init(adapter); + if (err) + goto err_common; - value = SPI_FLASH_CTRL_WAIT_READY | - (CUSTOM_SPI_CS_SETUP & SPI_FLASH_CTRL_CS_SETUP_MASK) << - SPI_FLASH_CTRL_CS_SETUP_SHIFT | (CUSTOM_SPI_CLK_HI & - SPI_FLASH_CTRL_CLK_HI_MASK) << - SPI_FLASH_CTRL_CLK_HI_SHIFT | (CUSTOM_SPI_CLK_LO & - SPI_FLASH_CTRL_CLK_LO_MASK) << - SPI_FLASH_CTRL_CLK_LO_SHIFT | (CUSTOM_SPI_CS_HOLD & - SPI_FLASH_CTRL_CS_HOLD_MASK) << - SPI_FLASH_CTRL_CS_HOLD_SHIFT | (CUSTOM_SPI_CS_HI & - SPI_FLASH_CTRL_CS_HI_MASK) << - SPI_FLASH_CTRL_CS_HI_SHIFT | (1 & SPI_FLASH_CTRL_INS_MASK) << - SPI_FLASH_CTRL_INS_SHIFT; + netdev->features = NETIF_F_HW_CSUM; + netdev->features |= NETIF_F_SG; + netdev->features |= (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX); + netdev->features |= NETIF_F_TSO; + netdev->features |= NETIF_F_LLTX; - iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL); + /* + * patch for some L1 of old version, + * the final version of L1 may not need these + * patches + */ + /* atl1_pcie_patch(adapter); */ - value |= SPI_FLASH_CTRL_START; - iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL); - ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL); + /* really reset GPHY core */ + iowrite16(0, adapter->hw.hw_addr + REG_PHY_ENABLE); - for (i = 0; i < 10; i++) { - msleep(1); - value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL); - if (!(value & SPI_FLASH_CTRL_START)) - break; + /* + * reset the controller to + * put the device in a known good starting state + */ + if (atl1_reset_hw(&adapter->hw)) { + err = -EIO; + goto err_common; } - if (value & SPI_FLASH_CTRL_START) - return false; + /* copy the MAC address out of the EEPROM */ + atl1_read_mac_addr(&adapter->hw); + memcpy(netdev->dev_addr, adapter->hw.mac_addr, netdev->addr_len); - *buf = ioread32(hw->hw_addr + REG_SPI_DATA); + if (!is_valid_ether_addr(netdev->dev_addr)) { + err = -EIO; + goto err_common; + } - return true; -} + atl1_check_options(adapter); -/* - * get_permanent_address - * return 0 if get valid mac address, - */ -static int atl1_get_permanent_address(struct atl1_hw *hw) -{ - u32 addr[2]; - u32 i, control; - u16 reg; - u8 eth_addr[ETH_ALEN]; - bool key_valid; + /* pre-init the MAC, and setup link */ + err = atl1_init_hw(&adapter->hw); + if (err) { + err = -EIO; + goto err_common; + } - if (is_valid_ether_addr(hw->perm_mac_addr)) - return 0; + atl1_pcie_patch(adapter); + /* assume we have no link for now */ + netif_carrier_off(netdev); + netif_stop_queue(netdev); - /* init */ - addr[0] = addr[1] = 0; + init_timer(&adapter->watchdog_timer); + adapter->watchdog_timer.function = &atl1_watchdog; + adapter->watchdog_timer.data = (unsigned long)adapter; - if (!atl1_check_eeprom_exist(hw)) { - reg = 0; - key_valid = false; - /* Read out all EEPROM content */ - i = 0; - while (1) { - if (atl1_read_eeprom(hw, i + 0x100, &control)) { - if (key_valid) { - if (reg == REG_MAC_STA_ADDR) - addr[0] = control; - else if (reg == (REG_MAC_STA_ADDR + 4)) - addr[1] = control; - key_valid = false; - } else if ((control & 0xff) == 0x5A) { - key_valid = true; - reg = (u16) (control >> 16); - } else - break; - } else - /* read error */ - break; - i += 4; - } + init_timer(&adapter->phy_config_timer); + adapter->phy_config_timer.function = &atl1_phy_config; + adapter->phy_config_timer.data = (unsigned long)adapter; + adapter->phy_timer_pending = false; - *(u32 *) ð_addr[2] = swab32(addr[0]); - *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]); - if (is_valid_ether_addr(eth_addr)) { - memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN); - return 0; - } - return 1; - } + INIT_WORK(&adapter->tx_timeout_task, atl1_tx_timeout_task); - /* see if SPI FLAGS exist ? */ - addr[0] = addr[1] = 0; - reg = 0; - key_valid = false; - i = 0; - while (1) { - if (atl1_spi_read(hw, i + 0x1f000, &control)) { - if (key_valid) { - if (reg == REG_MAC_STA_ADDR) - addr[0] = control; - else if (reg == (REG_MAC_STA_ADDR + 4)) - addr[1] = control; - key_valid = false; - } else if ((control & 0xff) == 0x5A) { - key_valid = true; - reg = (u16) (control >> 16); - } else - /* data end */ - break; - } else - /* read error */ - break; - i += 4; - } + INIT_WORK(&adapter->link_chg_task, atlx_link_chg_task); - *(u32 *) ð_addr[2] = swab32(addr[0]); - *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]); - if (is_valid_ether_addr(eth_addr)) { - memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN); - return 0; - } + INIT_WORK(&adapter->pcie_dma_to_rst_task, atl1_tx_timeout_task); - /* - * On some motherboards, the MAC address is written by the - * BIOS directly to the MAC register during POST, and is - * not stored in eeprom. If all else thus far has failed - * to fetch the permanent MAC address, try reading it directly. - */ - addr[0] = ioread32(hw->hw_addr + REG_MAC_STA_ADDR); - addr[1] = ioread16(hw->hw_addr + (REG_MAC_STA_ADDR + 4)); - *(u32 *) ð_addr[2] = swab32(addr[0]); - *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]); - if (is_valid_ether_addr(eth_addr)) { - memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN); - return 0; - } + err = register_netdev(netdev); + if (err) + goto err_common; - return 1; + cards_found++; + atl1_via_workaround(adapter); + return 0; + +err_common: + pci_iounmap(pdev, adapter->hw.hw_addr); +err_pci_iomap: + free_netdev(netdev); +err_alloc_etherdev: + pci_release_regions(pdev); +err_dma: +err_request_regions: + pci_disable_device(pdev); + return err; } /* - * Reads the adapter's MAC address from the EEPROM - * hw - Struct containing variables accessed by shared code + * atl1_remove - Device Removal Routine + * @pdev: PCI device information struct + * + * atl1_remove is called by the PCI subsystem to alert the driver + * that it should release a PCI device. The could be caused by a + * Hot-Plug event, or because the driver is going to be removed from + * memory. */ -s32 atl1_read_mac_addr(struct atl1_hw *hw) +static void __devexit atl1_remove(struct pci_dev *pdev) { - u16 i; + struct net_device *netdev = pci_get_drvdata(pdev); + struct atl1_adapter *adapter; + /* Device not available. Return. */ + if (!netdev) + return; - if (atl1_get_permanent_address(hw)) - random_ether_addr(hw->perm_mac_addr); + adapter = netdev_priv(netdev); - for (i = 0; i < ETH_ALEN; i++) - hw->mac_addr[i] = hw->perm_mac_addr[i]; - return 0; + /* + * Some atl1 boards lack persistent storage for their MAC, and get it + * from the BIOS during POST. If we've been messing with the MAC + * address, we need to save the permanent one. + */ + if (memcmp(adapter->hw.mac_addr, adapter->hw.perm_mac_addr, ETH_ALEN)) { + memcpy(adapter->hw.mac_addr, adapter->hw.perm_mac_addr, + ETH_ALEN); + atl1_set_mac_addr(&adapter->hw); + } + + iowrite16(0, adapter->hw.hw_addr + REG_PHY_ENABLE); + unregister_netdev(netdev); + pci_iounmap(pdev, adapter->hw.hw_addr); + pci_release_regions(pdev); + free_netdev(netdev); + pci_disable_device(pdev); } +static struct pci_driver atl1_driver = { + .name = ATLX_DRIVER_NAME, + .id_table = atl1_pci_tbl, + .probe = atl1_probe, + .remove = __devexit_p(atl1_remove), + .suspend = atl1_suspend, + .resume = atl1_resume +}; + /* - * Hashes an address to determine its location in the multicast table - * hw - Struct containing variables accessed by shared code - * mc_addr - the multicast address to hash + * atl1_exit_module - Driver Exit Cleanup Routine * - * atl1_hash_mc_addr - * purpose - * set hash value for a multicast address - * hash calcu processing : - * 1. calcu 32bit CRC for multicast address - * 2. reverse crc with MSB to LSB + * atl1_exit_module is called just before the driver is removed + * from memory. */ -u32 atl1_hash_mc_addr(struct atl1_hw *hw, u8 *mc_addr) +static void __exit atl1_exit_module(void) { - u32 crc32, value = 0; - int i; - - crc32 = ether_crc_le(6, mc_addr); - for (i = 0; i < 32; i++) - value |= (((crc32 >> i) & 1) << (31 - i)); - - return value; + pci_unregister_driver(&atl1_driver); } /* - * Sets the bit in the multicast table corresponding to the hash value. - * hw - Struct containing variables accessed by shared code - * hash_value - Multicast address hash value + * atl1_init_module - Driver Registration Routine + * + * atl1_init_module is the first routine called when the driver is + * loaded. All it does is register with the PCI subsystem. */ -void atl1_hash_set(struct atl1_hw *hw, u32 hash_value) +static int __init atl1_init_module(void) { - u32 hash_bit, hash_reg; - u32 mta; - - /* - * The HASH Table is a register array of 2 32-bit registers. - * It is treated like an array of 64 bits. We want to set - * bit BitArray[hash_value]. So we figure out what register - * the bit is in, read it, OR in the new bit, then write - * back the new value. The register is determined by the - * upper 7 bits of the hash value and the bit within that - * register are determined by the lower 5 bits of the value. - */ - hash_reg = (hash_value >> 31) & 0x1; - hash_bit = (hash_value >> 26) & 0x1F; - mta = ioread32((hw->hw_addr + REG_RX_HASH_TABLE) + (hash_reg << 2)); - mta |= (1 << hash_bit); - iowrite32(mta, (hw->hw_addr + REG_RX_HASH_TABLE) + (hash_reg << 2)); + return pci_register_driver(&atl1_driver); } -/* - * Writes a value to a PHY register - * hw - Struct containing variables accessed by shared code - * reg_addr - address of the PHY register to write - * data - data to write to the PHY - */ -s32 atl1_write_phy_reg(struct atl1_hw *hw, u32 reg_addr, u16 phy_data) +module_init(atl1_init_module); +module_exit(atl1_exit_module); + +struct atl1_stats { + char stat_string[ETH_GSTRING_LEN]; + int sizeof_stat; + int stat_offset; +}; + +#define ATL1_STAT(m) \ + sizeof(((struct atl1_adapter *)0)->m), offsetof(struct atl1_adapter, m) + +static struct atl1_stats atl1_gstrings_stats[] = { + {"rx_packets", ATL1_STAT(soft_stats.rx_packets)}, + {"tx_packets", ATL1_STAT(soft_stats.tx_packets)}, + {"rx_bytes", ATL1_STAT(soft_stats.rx_bytes)}, + {"tx_bytes", ATL1_STAT(soft_stats.tx_bytes)}, + {"rx_errors", ATL1_STAT(soft_stats.rx_errors)}, + {"tx_errors", ATL1_STAT(soft_stats.tx_errors)}, + {"rx_dropped", ATL1_STAT(net_stats.rx_dropped)}, + {"tx_dropped", ATL1_STAT(net_stats.tx_dropped)}, + {"multicast", ATL1_STAT(soft_stats.multicast)}, + {"collisions", ATL1_STAT(soft_stats.collisions)}, + {"rx_length_errors", ATL1_STAT(soft_stats.rx_length_errors)}, + {"rx_over_errors", ATL1_STAT(soft_stats.rx_missed_errors)}, + {"rx_crc_errors", ATL1_STAT(soft_stats.rx_crc_errors)}, + {"rx_frame_errors", ATL1_STAT(soft_stats.rx_frame_errors)}, + {"rx_fifo_errors", ATL1_STAT(soft_stats.rx_fifo_errors)}, + {"rx_missed_errors", ATL1_STAT(soft_stats.rx_missed_errors)}, + {"tx_aborted_errors", ATL1_STAT(soft_stats.tx_aborted_errors)}, + {"tx_carrier_errors", ATL1_STAT(soft_stats.tx_carrier_errors)}, + {"tx_fifo_errors", ATL1_STAT(soft_stats.tx_fifo_errors)}, + {"tx_window_errors", ATL1_STAT(soft_stats.tx_window_errors)}, + {"tx_abort_exce_coll", ATL1_STAT(soft_stats.excecol)}, + {"tx_abort_late_coll", ATL1_STAT(soft_stats.latecol)}, + {"tx_deferred_ok", ATL1_STAT(soft_stats.deffer)}, + {"tx_single_coll_ok", ATL1_STAT(soft_stats.scc)}, + {"tx_multi_coll_ok", ATL1_STAT(soft_stats.mcc)}, + {"tx_underun", ATL1_STAT(soft_stats.tx_underun)}, + {"tx_trunc", ATL1_STAT(soft_stats.tx_trunc)}, + {"tx_pause", ATL1_STAT(soft_stats.tx_pause)}, + {"rx_pause", ATL1_STAT(soft_stats.rx_pause)}, + {"rx_rrd_ov", ATL1_STAT(soft_stats.rx_rrd_ov)}, + {"rx_trunc", ATL1_STAT(soft_stats.rx_trunc)} +}; + +static void atl1_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats *stats, u64 *data) { + struct atl1_adapter *adapter = netdev_priv(netdev); int i; - u32 val; - - val = ((u32) (phy_data & MDIO_DATA_MASK)) << MDIO_DATA_SHIFT | - (reg_addr & MDIO_REG_ADDR_MASK) << MDIO_REG_ADDR_SHIFT | - MDIO_SUP_PREAMBLE | - MDIO_START | MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT; - iowrite32(val, hw->hw_addr + REG_MDIO_CTRL); - ioread32(hw->hw_addr + REG_MDIO_CTRL); + char *p; - for (i = 0; i < MDIO_WAIT_TIMES; i++) { - udelay(2); - val = ioread32(hw->hw_addr + REG_MDIO_CTRL); - if (!(val & (MDIO_START | MDIO_BUSY))) - break; + for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) { + p = (char *)adapter+atl1_gstrings_stats[i].stat_offset; + data[i] = (atl1_gstrings_stats[i].sizeof_stat == + sizeof(u64)) ? *(u64 *)p : *(u32 *)p; } - if (!(val & (MDIO_START | MDIO_BUSY))) - return 0; - - return ATLX_ERR_PHY; } -/* - * Make L001's PHY out of Power Saving State (bug) - * hw - Struct containing variables accessed by shared code - * when power on, L001's PHY always on Power saving State - * (Gigabit Link forbidden) - */ -static s32 atl1_phy_leave_power_saving(struct atl1_hw *hw) +static int atl1_get_sset_count(struct net_device *netdev, int sset) { - s32 ret; - ret = atl1_write_phy_reg(hw, 29, 0x0029); - if (ret) - return ret; - return atl1_write_phy_reg(hw, 30, 0); + switch (sset) { + case ETH_SS_STATS: + return ARRAY_SIZE(atl1_gstrings_stats); + default: + return -EOPNOTSUPP; + } } -/* - *TODO: do something or get rid of this - */ -s32 atl1_phy_enter_power_saving(struct atl1_hw *hw) +static int atl1_get_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd) { -/* s32 ret_val; - * u16 phy_data; - */ + struct atl1_adapter *adapter = netdev_priv(netdev); + struct atl1_hw *hw = &adapter->hw; + + ecmd->supported = (SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full | + SUPPORTED_1000baseT_Full | + SUPPORTED_Autoneg | SUPPORTED_TP); + ecmd->advertising = ADVERTISED_TP; + if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR || + hw->media_type == MEDIA_TYPE_1000M_FULL) { + ecmd->advertising |= ADVERTISED_Autoneg; + if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR) { + ecmd->advertising |= ADVERTISED_Autoneg; + ecmd->advertising |= + (ADVERTISED_10baseT_Half | + ADVERTISED_10baseT_Full | + ADVERTISED_100baseT_Half | + ADVERTISED_100baseT_Full | + ADVERTISED_1000baseT_Full); + } else + ecmd->advertising |= (ADVERTISED_1000baseT_Full); + } + ecmd->port = PORT_TP; + ecmd->phy_address = 0; + ecmd->transceiver = XCVR_INTERNAL; + + if (netif_carrier_ok(adapter->netdev)) { + u16 link_speed, link_duplex; + atl1_get_speed_and_duplex(hw, &link_speed, &link_duplex); + ecmd->speed = link_speed; + if (link_duplex == FULL_DUPLEX) + ecmd->duplex = DUPLEX_FULL; + else + ecmd->duplex = DUPLEX_HALF; + } else { + ecmd->speed = -1; + ecmd->duplex = -1; + } + if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR || + hw->media_type == MEDIA_TYPE_1000M_FULL) + ecmd->autoneg = AUTONEG_ENABLE; + else + ecmd->autoneg = AUTONEG_DISABLE; -/* - ret_val = atl1_write_phy_reg(hw, ...); - ret_val = atl1_write_phy_reg(hw, ...); - .... -*/ return 0; } -/* - * Resets the PHY and make all config validate - * hw - Struct containing variables accessed by shared code - * - * Sets bit 15 and 12 of the MII Control regiser (for F001 bug) - */ -static s32 atl1_phy_reset(struct atl1_hw *hw) +static int atl1_set_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd) { - struct pci_dev *pdev = hw->back->pdev; - struct atl1_adapter *adapter = hw->back; - s32 ret_val; + struct atl1_adapter *adapter = netdev_priv(netdev); + struct atl1_hw *hw = &adapter->hw; u16 phy_data; + int ret_val = 0; + u16 old_media_type = hw->media_type; + if (netif_running(adapter->netdev)) { + if (netif_msg_link(adapter)) + dev_dbg(&adapter->pdev->dev, + "ethtool shutting down adapter\n"); + atl1_down(adapter); + } + + if (ecmd->autoneg == AUTONEG_ENABLE) + hw->media_type = MEDIA_TYPE_AUTO_SENSOR; + else { + if (ecmd->speed == SPEED_1000) { + if (ecmd->duplex != DUPLEX_FULL) { + if (netif_msg_link(adapter)) + dev_warn(&adapter->pdev->dev, + "1000M half is invalid\n"); + ret_val = -EINVAL; + goto exit_sset; + } + hw->media_type = MEDIA_TYPE_1000M_FULL; + } else if (ecmd->speed == SPEED_100) { + if (ecmd->duplex == DUPLEX_FULL) + hw->media_type = MEDIA_TYPE_100M_FULL; + else + hw->media_type = MEDIA_TYPE_100M_HALF; + } else { + if (ecmd->duplex == DUPLEX_FULL) + hw->media_type = MEDIA_TYPE_10M_FULL; + else + hw->media_type = MEDIA_TYPE_10M_HALF; + } + } + switch (hw->media_type) { + case MEDIA_TYPE_AUTO_SENSOR: + ecmd->advertising = + ADVERTISED_10baseT_Half | + ADVERTISED_10baseT_Full | + ADVERTISED_100baseT_Half | + ADVERTISED_100baseT_Full | + ADVERTISED_1000baseT_Full | + ADVERTISED_Autoneg | ADVERTISED_TP; + break; + case MEDIA_TYPE_1000M_FULL: + ecmd->advertising = + ADVERTISED_1000baseT_Full | + ADVERTISED_Autoneg | ADVERTISED_TP; + break; + default: + ecmd->advertising = 0; + break; + } + if (atl1_phy_setup_autoneg_adv(hw)) { + ret_val = -EINVAL; + if (netif_msg_link(adapter)) + dev_warn(&adapter->pdev->dev, + "invalid ethtool speed/duplex setting\n"); + goto exit_sset; + } if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR || hw->media_type == MEDIA_TYPE_1000M_FULL) phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN; @@ -3306,260 +3222,344 @@ static s32 atl1_phy_reset(struct atl1_hw *hw) break; } } + atl1_write_phy_reg(hw, MII_BMCR, phy_data); +exit_sset: + if (ret_val) + hw->media_type = old_media_type; - ret_val = atl1_write_phy_reg(hw, MII_BMCR, phy_data); - if (ret_val) { - u32 val; - int i; - /* pcie serdes link may be down! */ - if (netif_msg_hw(adapter)) - dev_dbg(&pdev->dev, "pcie phy link down\n"); + if (netif_running(adapter->netdev)) { + if (netif_msg_link(adapter)) + dev_dbg(&adapter->pdev->dev, + "ethtool starting adapter\n"); + atl1_up(adapter); + } else if (!ret_val) { + if (netif_msg_link(adapter)) + dev_dbg(&adapter->pdev->dev, + "ethtool resetting adapter\n"); + atl1_reset(adapter); + } + return ret_val; +} - for (i = 0; i < 25; i++) { - msleep(1); - val = ioread32(hw->hw_addr + REG_MDIO_CTRL); - if (!(val & (MDIO_START | MDIO_BUSY))) - break; - } +static void atl1_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *drvinfo) +{ + struct atl1_adapter *adapter = netdev_priv(netdev); - if ((val & (MDIO_START | MDIO_BUSY)) != 0) { - if (netif_msg_hw(adapter)) - dev_warn(&pdev->dev, - "pcie link down at least 25ms\n"); - return ret_val; - } - } + strncpy(drvinfo->driver, ATLX_DRIVER_NAME, sizeof(drvinfo->driver)); + strncpy(drvinfo->version, ATLX_DRIVER_VERSION, + sizeof(drvinfo->version)); + strncpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); + strncpy(drvinfo->bus_info, pci_name(adapter->pdev), + sizeof(drvinfo->bus_info)); + drvinfo->eedump_len = ATL1_EEDUMP_LEN; +} + +static void atl1_get_wol(struct net_device *netdev, + struct ethtool_wolinfo *wol) +{ + struct atl1_adapter *adapter = netdev_priv(netdev); + + wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC; + wol->wolopts = 0; + if (adapter->wol & ATLX_WUFC_EX) + wol->wolopts |= WAKE_UCAST; + if (adapter->wol & ATLX_WUFC_MC) + wol->wolopts |= WAKE_MCAST; + if (adapter->wol & ATLX_WUFC_BC) + wol->wolopts |= WAKE_BCAST; + if (adapter->wol & ATLX_WUFC_MAG) + wol->wolopts |= WAKE_MAGIC; + return; +} + +static int atl1_set_wol(struct net_device *netdev, + struct ethtool_wolinfo *wol) +{ + struct atl1_adapter *adapter = netdev_priv(netdev); + + if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)) + return -EOPNOTSUPP; + adapter->wol = 0; + if (wol->wolopts & WAKE_UCAST) + adapter->wol |= ATLX_WUFC_EX; + if (wol->wolopts & WAKE_MCAST) + adapter->wol |= ATLX_WUFC_MC; + if (wol->wolopts & WAKE_BCAST) + adapter->wol |= ATLX_WUFC_BC; + if (wol->wolopts & WAKE_MAGIC) + adapter->wol |= ATLX_WUFC_MAG; return 0; } -/* - * Configures PHY autoneg and flow control advertisement settings - * hw - Struct containing variables accessed by shared code - */ -s32 atl1_phy_setup_autoneg_adv(struct atl1_hw *hw) +static u32 atl1_get_msglevel(struct net_device *netdev) { - s32 ret_val; - s16 mii_autoneg_adv_reg; - s16 mii_1000t_ctrl_reg; + struct atl1_adapter *adapter = netdev_priv(netdev); + return adapter->msg_enable; +} - /* Read the MII Auto-Neg Advertisement Register (Address 4). */ - mii_autoneg_adv_reg = MII_AR_DEFAULT_CAP_MASK; +static void atl1_set_msglevel(struct net_device *netdev, u32 value) +{ + struct atl1_adapter *adapter = netdev_priv(netdev); + adapter->msg_enable = value; +} - /* Read the MII 1000Base-T Control Register (Address 9). */ - mii_1000t_ctrl_reg = MII_ATLX_CR_1000T_DEFAULT_CAP_MASK; +static int atl1_get_regs_len(struct net_device *netdev) +{ + return ATL1_REG_COUNT * sizeof(u32); +} - /* - * First we clear all the 10/100 mb speed bits in the Auto-Neg - * Advertisement Register (Address 4) and the 1000 mb speed bits in - * the 1000Base-T Control Register (Address 9). - */ - mii_autoneg_adv_reg &= ~MII_AR_SPEED_MASK; - mii_1000t_ctrl_reg &= ~MII_ATLX_CR_1000T_SPEED_MASK; +static void atl1_get_regs(struct net_device *netdev, struct ethtool_regs *regs, + void *p) +{ + struct atl1_adapter *adapter = netdev_priv(netdev); + struct atl1_hw *hw = &adapter->hw; + unsigned int i; + u32 *regbuf = p; - /* - * Need to parse media_type and set up - * the appropriate PHY registers. - */ - switch (hw->media_type) { - case MEDIA_TYPE_AUTO_SENSOR: - mii_autoneg_adv_reg |= (MII_AR_10T_HD_CAPS | - MII_AR_10T_FD_CAPS | - MII_AR_100TX_HD_CAPS | - MII_AR_100TX_FD_CAPS); - mii_1000t_ctrl_reg |= MII_ATLX_CR_1000T_FD_CAPS; - break; + for (i = 0; i < ATL1_REG_COUNT; i++) { + /* + * This switch statement avoids reserved regions + * of register space. + */ + switch (i) { + case 6 ... 9: + case 14: + case 29 ... 31: + case 34 ... 63: + case 75 ... 127: + case 136 ... 1023: + case 1027 ... 1087: + case 1091 ... 1151: + case 1194 ... 1195: + case 1200 ... 1201: + case 1206 ... 1213: + case 1216 ... 1279: + case 1290 ... 1311: + case 1323 ... 1343: + case 1358 ... 1359: + case 1368 ... 1375: + case 1378 ... 1383: + case 1388 ... 1391: + case 1393 ... 1395: + case 1402 ... 1403: + case 1410 ... 1471: + case 1522 ... 1535: + /* reserved region; don't read it */ + regbuf[i] = 0; + break; + default: + /* unreserved region */ + regbuf[i] = ioread32(hw->hw_addr + (i * sizeof(u32))); + } + } +} - case MEDIA_TYPE_1000M_FULL: - mii_1000t_ctrl_reg |= MII_ATLX_CR_1000T_FD_CAPS; - break; +static void atl1_get_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct atl1_adapter *adapter = netdev_priv(netdev); + struct atl1_tpd_ring *txdr = &adapter->tpd_ring; + struct atl1_rfd_ring *rxdr = &adapter->rfd_ring; - case MEDIA_TYPE_100M_FULL: - mii_autoneg_adv_reg |= MII_AR_100TX_FD_CAPS; - break; + ring->rx_max_pending = ATL1_MAX_RFD; + ring->tx_max_pending = ATL1_MAX_TPD; + ring->rx_mini_max_pending = 0; + ring->rx_jumbo_max_pending = 0; + ring->rx_pending = rxdr->count; + ring->tx_pending = txdr->count; + ring->rx_mini_pending = 0; + ring->rx_jumbo_pending = 0; +} - case MEDIA_TYPE_100M_HALF: - mii_autoneg_adv_reg |= MII_AR_100TX_HD_CAPS; - break; +static int atl1_set_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct atl1_adapter *adapter = netdev_priv(netdev); + struct atl1_tpd_ring *tpdr = &adapter->tpd_ring; + struct atl1_rrd_ring *rrdr = &adapter->rrd_ring; + struct atl1_rfd_ring *rfdr = &adapter->rfd_ring; - case MEDIA_TYPE_10M_FULL: - mii_autoneg_adv_reg |= MII_AR_10T_FD_CAPS; - break; + struct atl1_tpd_ring tpd_old, tpd_new; + struct atl1_rfd_ring rfd_old, rfd_new; + struct atl1_rrd_ring rrd_old, rrd_new; + struct atl1_ring_header rhdr_old, rhdr_new; + int err; - default: - mii_autoneg_adv_reg |= MII_AR_10T_HD_CAPS; - break; - } + tpd_old = adapter->tpd_ring; + rfd_old = adapter->rfd_ring; + rrd_old = adapter->rrd_ring; + rhdr_old = adapter->ring_header; - /* flow control fixed to enable all */ - mii_autoneg_adv_reg |= (MII_AR_ASM_DIR | MII_AR_PAUSE); + if (netif_running(adapter->netdev)) + atl1_down(adapter); - hw->mii_autoneg_adv_reg = mii_autoneg_adv_reg; - hw->mii_1000t_ctrl_reg = mii_1000t_ctrl_reg; + rfdr->count = (u16) max(ring->rx_pending, (u32) ATL1_MIN_RFD); + rfdr->count = rfdr->count > ATL1_MAX_RFD ? ATL1_MAX_RFD : + rfdr->count; + rfdr->count = (rfdr->count + 3) & ~3; + rrdr->count = rfdr->count; - ret_val = atl1_write_phy_reg(hw, MII_ADVERTISE, mii_autoneg_adv_reg); - if (ret_val) - return ret_val; + tpdr->count = (u16) max(ring->tx_pending, (u32) ATL1_MIN_TPD); + tpdr->count = tpdr->count > ATL1_MAX_TPD ? ATL1_MAX_TPD : + tpdr->count; + tpdr->count = (tpdr->count + 3) & ~3; + + if (netif_running(adapter->netdev)) { + /* try to get new resources before deleting old */ + err = atl1_setup_ring_resources(adapter); + if (err) + goto err_setup_ring; + + /* + * save the new, restore the old in order to free it, + * then restore the new back again + */ - ret_val = atl1_write_phy_reg(hw, MII_ATLX_CR, mii_1000t_ctrl_reg); - if (ret_val) - return ret_val; + rfd_new = adapter->rfd_ring; + rrd_new = adapter->rrd_ring; + tpd_new = adapter->tpd_ring; + rhdr_new = adapter->ring_header; + adapter->rfd_ring = rfd_old; + adapter->rrd_ring = rrd_old; + adapter->tpd_ring = tpd_old; + adapter->ring_header = rhdr_old; + atl1_free_ring_resources(adapter); + adapter->rfd_ring = rfd_new; + adapter->rrd_ring = rrd_new; + adapter->tpd_ring = tpd_new; + adapter->ring_header = rhdr_new; + err = atl1_up(adapter); + if (err) + return err; + } return 0; + +err_setup_ring: + adapter->rfd_ring = rfd_old; + adapter->rrd_ring = rrd_old; + adapter->tpd_ring = tpd_old; + adapter->ring_header = rhdr_old; + atl1_up(adapter); + return err; } -/* - * Configures link settings. - * hw - Struct containing variables accessed by shared code - * Assumes the hardware has previously been reset and the - * transmitter and receiver are not enabled. - */ -static s32 atl1_setup_link(struct atl1_hw *hw) +static void atl1_get_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *epause) { - struct pci_dev *pdev = hw->back->pdev; - struct atl1_adapter *adapter = hw->back; - s32 ret_val; + struct atl1_adapter *adapter = netdev_priv(netdev); + struct atl1_hw *hw = &adapter->hw; - /* - * Options: - * PHY will advertise value(s) parsed from - * autoneg_advertised and fc - * no matter what autoneg is , We will not wait link result. - */ - ret_val = atl1_phy_setup_autoneg_adv(hw); - if (ret_val) { - if (netif_msg_link(adapter)) - dev_dbg(&pdev->dev, - "error setting up autonegotiation\n"); - return ret_val; - } - /* SW.Reset , En-Auto-Neg if needed */ - ret_val = atl1_phy_reset(hw); - if (ret_val) { - if (netif_msg_link(adapter)) - dev_dbg(&pdev->dev, "error resetting phy\n"); - return ret_val; + if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR || + hw->media_type == MEDIA_TYPE_1000M_FULL) { + epause->autoneg = AUTONEG_ENABLE; + } else { + epause->autoneg = AUTONEG_DISABLE; } - hw->phy_configured = true; - return ret_val; + epause->rx_pause = 1; + epause->tx_pause = 1; } -static void atl1_init_flash_opcode(struct atl1_hw *hw) +static int atl1_set_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *epause) { - if (hw->flash_vendor >= ARRAY_SIZE(flash_table)) - /* Atmel */ - hw->flash_vendor = 0; + struct atl1_adapter *adapter = netdev_priv(netdev); + struct atl1_hw *hw = &adapter->hw; - /* Init OP table */ - iowrite8(flash_table[hw->flash_vendor].cmd_program, - hw->hw_addr + REG_SPI_FLASH_OP_PROGRAM); - iowrite8(flash_table[hw->flash_vendor].cmd_sector_erase, - hw->hw_addr + REG_SPI_FLASH_OP_SC_ERASE); - iowrite8(flash_table[hw->flash_vendor].cmd_chip_erase, - hw->hw_addr + REG_SPI_FLASH_OP_CHIP_ERASE); - iowrite8(flash_table[hw->flash_vendor].cmd_rdid, - hw->hw_addr + REG_SPI_FLASH_OP_RDID); - iowrite8(flash_table[hw->flash_vendor].cmd_wren, - hw->hw_addr + REG_SPI_FLASH_OP_WREN); - iowrite8(flash_table[hw->flash_vendor].cmd_rdsr, - hw->hw_addr + REG_SPI_FLASH_OP_RDSR); - iowrite8(flash_table[hw->flash_vendor].cmd_wrsr, - hw->hw_addr + REG_SPI_FLASH_OP_WRSR); - iowrite8(flash_table[hw->flash_vendor].cmd_read, - hw->hw_addr + REG_SPI_FLASH_OP_READ); + if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR || + hw->media_type == MEDIA_TYPE_1000M_FULL) { + epause->autoneg = AUTONEG_ENABLE; + } else { + epause->autoneg = AUTONEG_DISABLE; + } + + epause->rx_pause = 1; + epause->tx_pause = 1; + + return 0; } -/* - * Performs basic configuration of the adapter. - * hw - Struct containing variables accessed by shared code - * Assumes that the controller has previously been reset and is in a - * post-reset uninitialized state. Initializes multicast table, - * and Calls routines to setup link - * Leaves the transmit and receive units disabled and uninitialized. - */ -s32 atl1_init_hw(struct atl1_hw *hw) +/* FIXME: is this right? -- CHS */ +static u32 atl1_get_rx_csum(struct net_device *netdev) { - u32 ret_val = 0; - - /* Zero out the Multicast HASH table */ - iowrite32(0, hw->hw_addr + REG_RX_HASH_TABLE); - /* clear the old settings from the multicast hash table */ - iowrite32(0, (hw->hw_addr + REG_RX_HASH_TABLE) + (1 << 2)); + return 1; +} - atl1_init_flash_opcode(hw); +static void atl1_get_strings(struct net_device *netdev, u32 stringset, + u8 *data) +{ + u8 *p = data; + int i; - if (!hw->phy_configured) { - /* enable GPHY LinkChange Interrrupt */ - ret_val = atl1_write_phy_reg(hw, 18, 0xC00); - if (ret_val) - return ret_val; - /* make PHY out of power-saving state */ - ret_val = atl1_phy_leave_power_saving(hw); - if (ret_val) - return ret_val; - /* Call a subroutine to configure the link */ - ret_val = atl1_setup_link(hw); + switch (stringset) { + case ETH_SS_STATS: + for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) { + memcpy(p, atl1_gstrings_stats[i].stat_string, + ETH_GSTRING_LEN); + p += ETH_GSTRING_LEN; + } + break; } - return ret_val; } -/* - * Detects the current speed and duplex settings of the hardware. - * hw - Struct containing variables accessed by shared code - * speed - Speed of the connection - * duplex - Duplex setting of the connection - */ -s32 atl1_get_speed_and_duplex(struct atl1_hw *hw, u16 *speed, u16 *duplex) +static int atl1_nway_reset(struct net_device *netdev) { - struct pci_dev *pdev = hw->back->pdev; - struct atl1_adapter *adapter = hw->back; - s32 ret_val; - u16 phy_data; - - /* ; --- Read PHY Specific Status Register (17) */ - ret_val = atl1_read_phy_reg(hw, MII_ATLX_PSSR, &phy_data); - if (ret_val) - return ret_val; + struct atl1_adapter *adapter = netdev_priv(netdev); + struct atl1_hw *hw = &adapter->hw; - if (!(phy_data & MII_ATLX_PSSR_SPD_DPLX_RESOLVED)) - return ATLX_ERR_PHY_RES; + if (netif_running(netdev)) { + u16 phy_data; + atl1_down(adapter); - switch (phy_data & MII_ATLX_PSSR_SPEED) { - case MII_ATLX_PSSR_1000MBS: - *speed = SPEED_1000; - break; - case MII_ATLX_PSSR_100MBS: - *speed = SPEED_100; - break; - case MII_ATLX_PSSR_10MBS: - *speed = SPEED_10; - break; - default: - if (netif_msg_hw(adapter)) - dev_dbg(&pdev->dev, "error getting speed\n"); - return ATLX_ERR_PHY_SPEED; - break; + if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR || + hw->media_type == MEDIA_TYPE_1000M_FULL) { + phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN; + } else { + switch (hw->media_type) { + case MEDIA_TYPE_100M_FULL: + phy_data = MII_CR_FULL_DUPLEX | + MII_CR_SPEED_100 | MII_CR_RESET; + break; + case MEDIA_TYPE_100M_HALF: + phy_data = MII_CR_SPEED_100 | MII_CR_RESET; + break; + case MEDIA_TYPE_10M_FULL: + phy_data = MII_CR_FULL_DUPLEX | + MII_CR_SPEED_10 | MII_CR_RESET; + break; + default: + /* MEDIA_TYPE_10M_HALF */ + phy_data = MII_CR_SPEED_10 | MII_CR_RESET; + } + } + atl1_write_phy_reg(hw, MII_BMCR, phy_data); + atl1_up(adapter); } - if (phy_data & MII_ATLX_PSSR_DPLX) - *duplex = FULL_DUPLEX; - else - *duplex = HALF_DUPLEX; - return 0; } -void atl1_set_mac_addr(struct atl1_hw *hw) -{ - u32 value; - /* - * 00-0B-6A-F6-00-DC - * 0: 6AF600DC 1: 000B - * low dword - */ - value = (((u32) hw->mac_addr[2]) << 24) | - (((u32) hw->mac_addr[3]) << 16) | - (((u32) hw->mac_addr[4]) << 8) | (((u32) hw->mac_addr[5])); - iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR); - /* high dword */ - value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1])); - iowrite32(value, (hw->hw_addr + REG_MAC_STA_ADDR) + (1 << 2)); -} +const struct ethtool_ops atl1_ethtool_ops = { + .get_settings = atl1_get_settings, + .set_settings = atl1_set_settings, + .get_drvinfo = atl1_get_drvinfo, + .get_wol = atl1_get_wol, + .set_wol = atl1_set_wol, + .get_msglevel = atl1_get_msglevel, + .set_msglevel = atl1_set_msglevel, + .get_regs_len = atl1_get_regs_len, + .get_regs = atl1_get_regs, + .get_ringparam = atl1_get_ringparam, + .set_ringparam = atl1_set_ringparam, + .get_pauseparam = atl1_get_pauseparam, + .set_pauseparam = atl1_set_pauseparam, + .get_rx_csum = atl1_get_rx_csum, + .set_tx_csum = ethtool_op_set_tx_hw_csum, + .get_link = ethtool_op_get_link, + .set_sg = ethtool_op_set_sg, + .get_strings = atl1_get_strings, + .nway_reset = atl1_nway_reset, + .get_ethtool_stats = atl1_get_ethtool_stats, + .get_sset_count = atl1_get_sset_count, + .set_tso = ethtool_op_set_tso, +}; diff --git a/drivers/net/atlx/atl1.h b/drivers/net/atlx/atl1.h index 6220298908ba..51893d66eae1 100644 --- a/drivers/net/atlx/atl1.h +++ b/drivers/net/atlx/atl1.h @@ -56,20 +56,10 @@ struct atl1_adapter; struct atl1_hw; /* function prototypes needed by multiple files */ -s32 atl1_phy_setup_autoneg_adv(struct atl1_hw *hw); -s32 atl1_write_phy_reg(struct atl1_hw *hw, u32 reg_addr, u16 phy_data); -s32 atl1_get_speed_and_duplex(struct atl1_hw *hw, u16 *speed, u16 *duplex); -s32 atl1_read_mac_addr(struct atl1_hw *hw); -s32 atl1_init_hw(struct atl1_hw *hw); -s32 atl1_get_speed_and_duplex(struct atl1_hw *hw, u16 *speed, u16 *duplex); -s32 atl1_set_speed_and_duplex(struct atl1_hw *hw, u16 speed, u16 duplex); u32 atl1_hash_mc_addr(struct atl1_hw *hw, u8 *mc_addr); void atl1_hash_set(struct atl1_hw *hw, u32 hash_value); s32 atl1_read_phy_reg(struct atl1_hw *hw, u16 reg_addr, u16 *phy_data); void atl1_set_mac_addr(struct atl1_hw *hw); -s32 atl1_phy_enter_power_saving(struct atl1_hw *hw); -s32 atl1_reset_hw(struct atl1_hw *hw); -void atl1_check_options(struct atl1_adapter *adapter); static int atl1_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd); static u32 atl1_check_link(struct atl1_adapter *adapter);