diff options
Diffstat (limited to 'drivers/staging/et131x/et131x_netdev.c')
| -rw-r--r-- | drivers/staging/et131x/et131x_netdev.c | 686 |
1 files changed, 0 insertions, 686 deletions
diff --git a/drivers/staging/et131x/et131x_netdev.c b/drivers/staging/et131x/et131x_netdev.c deleted file mode 100644 index 4406630b0c6..00000000000 --- a/drivers/staging/et131x/et131x_netdev.c +++ /dev/null @@ -1,686 +0,0 @@ -/* - * Agere Systems Inc. - * 10/100/1000 Base-T Ethernet Driver for the ET1301 and ET131x series MACs - * - * Copyright © 2005 Agere Systems Inc. - * All rights reserved. - * http://www.agere.com - * - *------------------------------------------------------------------------------ - * - * et131x_netdev.c - Routines and data required by all Linux network devices. - * - *------------------------------------------------------------------------------ - * - * SOFTWARE LICENSE - * - * This software is provided subject to the following terms and conditions, - * which you should read carefully before using the software. Using this - * software indicates your acceptance of these terms and conditions. If you do - * not agree with these terms and conditions, do not use the software. - * - * Copyright © 2005 Agere Systems Inc. - * All rights reserved. - * - * Redistribution and use in source or binary forms, with or without - * modifications, are permitted provided that the following conditions are met: - * - * . Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following Disclaimer as comments in the code as - * well as in the documentation and/or other materials provided with the - * distribution. - * - * . Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following Disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * . Neither the name of Agere Systems Inc. nor the names of the contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * Disclaimer - * - * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ANY - * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN - * RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH - * DAMAGE. - * - */ - -#include "et131x_version.h" -#include "et131x_defs.h" - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> - -#include <linux/sched.h> -#include <linux/ptrace.h> -#include <linux/ctype.h> -#include <linux/string.h> -#include <linux/timer.h> -#include <linux/interrupt.h> -#include <linux/in.h> -#include <linux/delay.h> -#include <linux/io.h> -#include <linux/bitops.h> -#include <linux/pci.h> -#include <asm/system.h> - -#include <linux/mii.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/if_arp.h> -#include <linux/ioport.h> - -#include "et1310_phy.h" -#include "et1310_tx.h" -#include "et131x_adapter.h" -#include "et131x.h" - -/** - * et131x_stats - Return the current device statistics. - * @netdev: device whose stats are being queried - * - * Returns 0 on success, errno on failure (as defined in errno.h) - */ -static struct net_device_stats *et131x_stats(struct net_device *netdev) -{ - struct et131x_adapter *adapter = netdev_priv(netdev); - struct net_device_stats *stats = &adapter->net_stats; - struct ce_stats *devstat = &adapter->stats; - - stats->rx_errors = devstat->length_err + devstat->alignment_err + - devstat->crc_err + devstat->code_violations + devstat->other_errors; - stats->tx_errors = devstat->max_pkt_error; - stats->multicast = devstat->multircv; - stats->collisions = devstat->collisions; - - stats->rx_length_errors = devstat->length_err; - stats->rx_over_errors = devstat->rx_ov_flow; - stats->rx_crc_errors = devstat->crc_err; - - /* NOTE: These stats don't have corresponding values in CE_STATS, - * so we're going to have to update these directly from within the - * TX/RX code - */ - /* stats->rx_bytes = 20; devstat->; */ - /* stats->tx_bytes = 20; devstat->; */ - /* stats->rx_dropped = devstat->; */ - /* stats->tx_dropped = devstat->; */ - - /* NOTE: Not used, can't find analogous statistics */ - /* stats->rx_frame_errors = devstat->; */ - /* stats->rx_fifo_errors = devstat->; */ - /* stats->rx_missed_errors = devstat->; */ - - /* stats->tx_aborted_errors = devstat->; */ - /* stats->tx_carrier_errors = devstat->; */ - /* stats->tx_fifo_errors = devstat->; */ - /* stats->tx_heartbeat_errors = devstat->; */ - /* stats->tx_window_errors = devstat->; */ - return stats; -} - -/** - * et131x_open - Open the device for use. - * @netdev: device to be opened - * - * Returns 0 on success, errno on failure (as defined in errno.h) - */ -int et131x_open(struct net_device *netdev) -{ - int result = 0; - struct et131x_adapter *adapter = netdev_priv(netdev); - - /* Start the timer to track NIC errors */ - add_timer(&adapter->ErrorTimer); - - /* Register our IRQ */ - result = request_irq(netdev->irq, et131x_isr, IRQF_SHARED, - netdev->name, netdev); - if (result) { - dev_err(&adapter->pdev->dev, "c ould not register IRQ %d\n", - netdev->irq); - return result; - } - - /* Enable the Tx and Rx DMA engines (if not already enabled) */ - et131x_rx_dma_enable(adapter); - et131x_tx_dma_enable(adapter); - - /* Enable device interrupts */ - et131x_enable_interrupts(adapter); - - adapter->flags |= fMP_ADAPTER_INTERRUPT_IN_USE; - - /* We're ready to move some data, so start the queue */ - netif_start_queue(netdev); - return result; -} - -/** - * et131x_close - Close the device - * @netdev: device to be closed - * - * Returns 0 on success, errno on failure (as defined in errno.h) - */ -int et131x_close(struct net_device *netdev) -{ - struct et131x_adapter *adapter = netdev_priv(netdev); - - /* First thing is to stop the queue */ - netif_stop_queue(netdev); - - /* Stop the Tx and Rx DMA engines */ - et131x_rx_dma_disable(adapter); - et131x_tx_dma_disable(adapter); - - /* Disable device interrupts */ - et131x_disable_interrupts(adapter); - - /* Deregistering ISR */ - adapter->flags &= ~fMP_ADAPTER_INTERRUPT_IN_USE; - free_irq(netdev->irq, netdev); - - /* Stop the error timer */ - del_timer_sync(&adapter->ErrorTimer); - return 0; -} - -/** - * et131x_ioctl_mii - The function which handles MII IOCTLs - * @netdev: device on which the query is being made - * @reqbuf: the request-specific data buffer - * @cmd: the command request code - * - * Returns 0 on success, errno on failure (as defined in errno.h) - */ -int et131x_ioctl_mii(struct net_device *netdev, struct ifreq *reqbuf, int cmd) -{ - int status = 0; - struct et131x_adapter *etdev = netdev_priv(netdev); - struct mii_ioctl_data *data = if_mii(reqbuf); - - switch (cmd) { - case SIOCGMIIPHY: - data->phy_id = etdev->stats.xcvr_addr; - break; - - case SIOCGMIIREG: - if (!capable(CAP_NET_ADMIN)) - status = -EPERM; - else - status = MiRead(etdev, - data->reg_num, &data->val_out); - break; - - case SIOCSMIIREG: - if (!capable(CAP_NET_ADMIN)) - status = -EPERM; - else - status = MiWrite(etdev, data->reg_num, - data->val_in); - break; - - default: - status = -EOPNOTSUPP; - } - return status; -} - -/** - * et131x_ioctl - The I/O Control handler for the driver - * @netdev: device on which the control request is being made - * @reqbuf: a pointer to the IOCTL request buffer - * @cmd: the IOCTL command code - * - * Returns 0 on success, errno on failure (as defined in errno.h) - */ -int et131x_ioctl(struct net_device *netdev, struct ifreq *reqbuf, int cmd) -{ - int status = 0; - - switch (cmd) { - case SIOCGMIIPHY: - case SIOCGMIIREG: - case SIOCSMIIREG: - status = et131x_ioctl_mii(netdev, reqbuf, cmd); - break; - - default: - status = -EOPNOTSUPP; - } - return status; -} - -/** - * et131x_set_packet_filter - Configures the Rx Packet filtering on the device - * @adapter: pointer to our private adapter structure - * - * FIXME: lot of dups with MAC code - * - * Returns 0 on success, errno on failure - */ -int et131x_set_packet_filter(struct et131x_adapter *adapter) -{ - int status = 0; - uint32_t filter = adapter->PacketFilter; - u32 ctrl; - u32 pf_ctrl; - - ctrl = readl(&adapter->regs->rxmac.ctrl); - pf_ctrl = readl(&adapter->regs->rxmac.pf_ctrl); - - /* Default to disabled packet filtering. Enable it in the individual - * case statements that require the device to filter something - */ - ctrl |= 0x04; - - /* Set us to be in promiscuous mode so we receive everything, this - * is also true when we get a packet filter of 0 - */ - if ((filter & ET131X_PACKET_TYPE_PROMISCUOUS) || filter == 0) - pf_ctrl &= ~7; /* Clear filter bits */ - else { - /* - * Set us up with Multicast packet filtering. Three cases are - * possible - (1) we have a multi-cast list, (2) we receive ALL - * multicast entries or (3) we receive none. - */ - if (filter & ET131X_PACKET_TYPE_ALL_MULTICAST) - pf_ctrl &= ~2; /* Multicast filter bit */ - else { - SetupDeviceForMulticast(adapter); - pf_ctrl |= 2; - ctrl &= ~0x04; - } - - /* Set us up with Unicast packet filtering */ - if (filter & ET131X_PACKET_TYPE_DIRECTED) { - SetupDeviceForUnicast(adapter); - pf_ctrl |= 4; - ctrl &= ~0x04; - } - - /* Set us up with Broadcast packet filtering */ - if (filter & ET131X_PACKET_TYPE_BROADCAST) { - pf_ctrl |= 1; /* Broadcast filter bit */ - ctrl &= ~0x04; - } else - pf_ctrl &= ~1; - - /* Setup the receive mac configuration registers - Packet - * Filter control + the enable / disable for packet filter - * in the control reg. - */ - writel(pf_ctrl, &adapter->regs->rxmac.pf_ctrl); - writel(ctrl, &adapter->regs->rxmac.ctrl); - } - return status; -} - -/** - * et131x_multicast - The handler to configure multicasting on the interface - * @netdev: a pointer to a net_device struct representing the device - */ -void et131x_multicast(struct net_device *netdev) -{ - struct et131x_adapter *adapter = netdev_priv(netdev); - uint32_t PacketFilter = 0; - unsigned long flags; - struct netdev_hw_addr *ha; - int i; - - spin_lock_irqsave(&adapter->Lock, flags); - - /* Before we modify the platform-independent filter flags, store them - * locally. This allows us to determine if anything's changed and if - * we even need to bother the hardware - */ - PacketFilter = adapter->PacketFilter; - - /* Clear the 'multicast' flag locally; because we only have a single - * flag to check multicast, and multiple multicast addresses can be - * set, this is the easiest way to determine if more than one - * multicast address is being set. - */ - PacketFilter &= ~ET131X_PACKET_TYPE_MULTICAST; - - /* Check the net_device flags and set the device independent flags - * accordingly - */ - - if (netdev->flags & IFF_PROMISC) - adapter->PacketFilter |= ET131X_PACKET_TYPE_PROMISCUOUS; - else - adapter->PacketFilter &= ~ET131X_PACKET_TYPE_PROMISCUOUS; - - if (netdev->flags & IFF_ALLMULTI) - adapter->PacketFilter |= ET131X_PACKET_TYPE_ALL_MULTICAST; - - if (netdev_mc_count(netdev) > NIC_MAX_MCAST_LIST) - adapter->PacketFilter |= ET131X_PACKET_TYPE_ALL_MULTICAST; - - if (netdev_mc_count(netdev) < 1) { - adapter->PacketFilter &= ~ET131X_PACKET_TYPE_ALL_MULTICAST; - adapter->PacketFilter &= ~ET131X_PACKET_TYPE_MULTICAST; - } else - adapter->PacketFilter |= ET131X_PACKET_TYPE_MULTICAST; - - /* Set values in the private adapter struct */ - i = 0; - netdev_for_each_mc_addr(ha, netdev) { - if (i == NIC_MAX_MCAST_LIST) - break; - memcpy(adapter->MCList[i++], ha->addr, ETH_ALEN); - } - adapter->MCAddressCount = i; - - /* Are the new flags different from the previous ones? If not, then no - * action is required - * - * NOTE - This block will always update the MCList with the hardware, - * even if the addresses aren't the same. - */ - if (PacketFilter != adapter->PacketFilter) { - /* Call the device's filter function */ - et131x_set_packet_filter(adapter); - } - spin_unlock_irqrestore(&adapter->Lock, flags); -} - -/** - * et131x_tx - The handler to tx a packet on the device - * @skb: data to be Tx'd - * @netdev: device on which data is to be Tx'd - * - * Returns 0 on success, errno on failure (as defined in errno.h) - */ -int et131x_tx(struct sk_buff *skb, struct net_device *netdev) -{ - int status = 0; - - /* Save the timestamp for the TX timeout watchdog */ - netdev->trans_start = jiffies; - - /* Call the device-specific data Tx routine */ - status = et131x_send_packets(skb, netdev); - - /* Check status and manage the netif queue if necessary */ - if (status != 0) { - if (status == -ENOMEM) { - /* Put the queue to sleep until resources are - * available - */ - netif_stop_queue(netdev); - status = NETDEV_TX_BUSY; - } else { - status = NETDEV_TX_OK; - } - } - return status; -} - -/** - * et131x_tx_timeout - Timeout handler - * @netdev: a pointer to a net_device struct representing the device - * - * The handler called when a Tx request times out. The timeout period is - * specified by the 'tx_timeo" element in the net_device structure (see - * et131x_alloc_device() to see how this value is set). - */ -void et131x_tx_timeout(struct net_device *netdev) -{ - struct et131x_adapter *etdev = netdev_priv(netdev); - struct tcb *tcb; - unsigned long flags; - - /* Any nonrecoverable hardware error? - * Checks adapter->flags for any failure in phy reading - */ - if (etdev->flags & fMP_ADAPTER_NON_RECOVER_ERROR) - return; - - /* Hardware failure? */ - if (etdev->flags & fMP_ADAPTER_HARDWARE_ERROR) { - dev_err(&etdev->pdev->dev, "hardware error - reset\n"); - return; - } - - /* Is send stuck? */ - spin_lock_irqsave(&etdev->TCBSendQLock, flags); - - tcb = etdev->tx_ring.send_head; - - if (tcb != NULL) { - tcb->count++; - - if (tcb->count > NIC_SEND_HANG_THRESHOLD) { - spin_unlock_irqrestore(&etdev->TCBSendQLock, - flags); - - dev_warn(&etdev->pdev->dev, - "Send stuck - reset. tcb->WrIndex %x, flags 0x%08x\n", - tcb->index, - tcb->flags); - - et131x_close(netdev); - et131x_open(netdev); - - return; - } - } - - spin_unlock_irqrestore(&etdev->TCBSendQLock, flags); -} - -/** - * et131x_change_mtu - The handler called to change the MTU for the device - * @netdev: device whose MTU is to be changed - * @new_mtu: the desired MTU - * - * Returns 0 on success, errno on failure (as defined in errno.h) - */ -int et131x_change_mtu(struct net_device *netdev, int new_mtu) -{ - int result = 0; - struct et131x_adapter *adapter = netdev_priv(netdev); - - /* Make sure the requested MTU is valid */ - if (new_mtu < 64 || new_mtu > 9216) - return -EINVAL; - - /* Stop the netif queue */ - netif_stop_queue(netdev); - - /* Stop the Tx and Rx DMA engines */ - et131x_rx_dma_disable(adapter); - et131x_tx_dma_disable(adapter); - - /* Disable device interrupts */ - et131x_disable_interrupts(adapter); - et131x_handle_send_interrupt(adapter); - et131x_handle_recv_interrupt(adapter); - - /* Set the new MTU */ - netdev->mtu = new_mtu; - - /* Free Rx DMA memory */ - et131x_adapter_memory_free(adapter); - - /* Set the config parameter for Jumbo Packet support */ - adapter->RegistryJumboPacket = new_mtu + 14; - et131x_soft_reset(adapter); - - /* Alloc and init Rx DMA memory */ - result = et131x_adapter_memory_alloc(adapter); - if (result != 0) { - dev_warn(&adapter->pdev->dev, - "Change MTU failed; couldn't re-alloc DMA memory\n"); - return result; - } - - et131x_init_send(adapter); - - et131x_hwaddr_init(adapter); - memcpy(netdev->dev_addr, adapter->addr, ETH_ALEN); - - /* Init the device with the new settings */ - et131x_adapter_setup(adapter); - - /* Enable interrupts */ - if (adapter->flags & fMP_ADAPTER_INTERRUPT_IN_USE) - et131x_enable_interrupts(adapter); - - /* Restart the Tx and Rx DMA engines */ - et131x_rx_dma_enable(adapter); - et131x_tx_dma_enable(adapter); - - /* Restart the netif queue */ - netif_wake_queue(netdev); - return result; -} - -/** - * et131x_set_mac_addr - handler to change the MAC address for the device - * @netdev: device whose MAC is to be changed - * @new_mac: the desired MAC address - * - * Returns 0 on success, errno on failure (as defined in errno.h) - * - * IMPLEMENTED BY : blux http://berndlux.de 22.01.2007 21:14 - */ -int et131x_set_mac_addr(struct net_device *netdev, void *new_mac) -{ - int result = 0; - struct et131x_adapter *adapter = netdev_priv(netdev); - struct sockaddr *address = new_mac; - - /* begin blux */ - - if (adapter == NULL) - return -ENODEV; - - /* Make sure the requested MAC is valid */ - if (!is_valid_ether_addr(address->sa_data)) - return -EINVAL; - - /* Stop the netif queue */ - netif_stop_queue(netdev); - - /* Stop the Tx and Rx DMA engines */ - et131x_rx_dma_disable(adapter); - et131x_tx_dma_disable(adapter); - - /* Disable device interrupts */ - et131x_disable_interrupts(adapter); - et131x_handle_send_interrupt(adapter); - et131x_handle_recv_interrupt(adapter); - - /* Set the new MAC */ - /* netdev->set_mac_address = &new_mac; */ - /* netdev->mtu = new_mtu; */ - - memcpy(netdev->dev_addr, address->sa_data, netdev->addr_len); - - printk(KERN_INFO "%s: Setting MAC address to %pM\n", - netdev->name, netdev->dev_addr); - - /* Free Rx DMA memory */ - et131x_adapter_memory_free(adapter); - - /* Set the config parameter for Jumbo Packet support */ - /* adapter->RegistryJumboPacket = new_mtu + 14; */ - /* blux: not needet here, we'll change the MAC */ - - et131x_soft_reset(adapter); - - /* Alloc and init Rx DMA memory */ - result = et131x_adapter_memory_alloc(adapter); - if (result != 0) { - dev_err(&adapter->pdev->dev, - "Change MAC failed; couldn't re-alloc DMA memory\n"); - return result; - } - - et131x_init_send(adapter); - - et131x_hwaddr_init(adapter); - - /* Init the device with the new settings */ - et131x_adapter_setup(adapter); - - /* Enable interrupts */ - if (adapter->flags & fMP_ADAPTER_INTERRUPT_IN_USE) - et131x_enable_interrupts(adapter); - - /* Restart the Tx and Rx DMA engines */ - et131x_rx_dma_enable(adapter); - et131x_tx_dma_enable(adapter); - - /* Restart the netif queue */ - netif_wake_queue(netdev); - return result; -} - -static const struct net_device_ops et131x_netdev_ops = { - .ndo_open = et131x_open, - .ndo_stop = et131x_close, - .ndo_start_xmit = et131x_tx, - .ndo_set_rx_mode = et131x_multicast, - .ndo_tx_timeout = et131x_tx_timeout, - .ndo_change_mtu = et131x_change_mtu, - .ndo_set_mac_address = et131x_set_mac_addr, - .ndo_validate_addr = eth_validate_addr, - .ndo_get_stats = et131x_stats, - .ndo_do_ioctl = et131x_ioctl, -}; - -/** - * et131x_device_alloc - * - * Returns pointer to the allocated and initialized net_device struct for - * this device. - * - * Create instances of net_device and wl_private for the new adapter and - * register the device's entry points in the net_device structure. - */ -struct net_device *et131x_device_alloc(void) -{ - struct net_device *netdev; - - /* Alloc net_device and adapter structs */ - netdev = alloc_etherdev(sizeof(struct et131x_adapter)); - - if (netdev == NULL) { - printk(KERN_ERR "et131x: Alloc of net_device struct failed\n"); - return NULL; - } - - /* Setup the function registration table (and other data) for a - * net_device - */ - /* netdev->init = &et131x_init; */ - /* netdev->set_config = &et131x_config; */ - netdev->watchdog_timeo = ET131X_TX_TIMEOUT; - netdev->netdev_ops = &et131x_netdev_ops; - - /* netdev->ethtool_ops = &et131x_ethtool_ops; */ - - /* Poll? */ - /* netdev->poll = &et131x_poll; */ - /* netdev->poll_controller = &et131x_poll_controller; */ - return netdev; -} - |