From 3d396eb17e9f8c5f59314078b45b88647591378d Mon Sep 17 00:00:00 2001 From: "Amit S. Kale" Date: Sat, 21 Oct 2006 15:33:03 -0400 Subject: Add NetXen 1G/10G ethernet driver. Signed-off-by: Amit S. Kale Signed-off-by: Jeff Garzik --- drivers/net/netxen/netxen_nic_main.c | 1116 ++++++++++++++++++++++++++++++++++ 1 file changed, 1116 insertions(+) create mode 100644 drivers/net/netxen/netxen_nic_main.c (limited to 'drivers/net/netxen/netxen_nic_main.c') diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c new file mode 100644 index 000000000000..b54ea164e0ea --- /dev/null +++ b/drivers/net/netxen/netxen_nic_main.c @@ -0,0 +1,1116 @@ +/* + * Copyright (C) 2003 - 2006 NetXen, Inc. + * All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, + * MA 02111-1307, USA. + * + * The full GNU General Public License is included in this distribution + * in the file called LICENSE. + * + * Contact Information: + * info@netxen.com + * NetXen, + * 3965 Freedom Circle, Fourth floor, + * Santa Clara, CA 95054 + * + * + * Main source file for NetXen NIC Driver on Linux + * + */ + +#include "netxen_nic_hw.h" + +#include "netxen_nic.h" +#define DEFINE_GLOBAL_RECV_CRB +#include "netxen_nic_phan_reg.h" +#include "netxen_nic_ioctl.h" + +MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); + +char netxen_nic_driver_name[] = "netxen"; +static char netxen_nic_driver_string[] = "NetXen Network Driver version " + NETXEN_NIC_LINUX_VERSIONID "-" NETXEN_NIC_BUILD_NO; + +#define NETXEN_NETDEV_WEIGHT 120 +#define NETXEN_ADAPTER_UP_MAGIC 777 + +/* Local functions to NetXen NIC driver */ +static int __devinit netxen_nic_probe(struct pci_dev *pdev, + const struct pci_device_id *ent); +static void __devexit netxen_nic_remove(struct pci_dev *pdev); +static int netxen_nic_open(struct net_device *netdev); +static int netxen_nic_close(struct net_device *netdev); +static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *); +static void netxen_tx_timeout(struct net_device *netdev); +static void netxen_tx_timeout_task(struct net_device *netdev); +static void netxen_watchdog(unsigned long); +static int netxen_handle_int(struct netxen_adapter *, struct net_device *); +static int netxen_nic_ioctl(struct net_device *netdev, + struct ifreq *ifr, int cmd); +static int netxen_nic_poll(struct net_device *dev, int *budget); +#ifdef CONFIG_NET_POLL_CONTROLLER +static void netxen_nic_poll_controller(struct net_device *netdev); +#endif +static irqreturn_t netxen_intr(int irq, void *data, struct pt_regs *regs); + +/* PCI Device ID Table */ +static struct pci_device_id netxen_pci_tbl[] __devinitdata = { + {PCI_DEVICE(0x4040, 0x0001)}, + {PCI_DEVICE(0x4040, 0x0002)}, + {PCI_DEVICE(0x4040, 0x0003)}, + {PCI_DEVICE(0x4040, 0x0004)}, + {PCI_DEVICE(0x4040, 0x0005)}, + {0,} +}; + +MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); + +/* + * netxen_nic_probe() + * + * The Linux system will invoke this after identifying the vendor ID and + * device Id in the pci_tbl supported by this module. + * + * A quad port card has one operational PCI config space, (function 0), + * which is used to access all four ports. + * + * This routine will initialize the adapter, and setup the global parameters + * along with the port's specific structure. + */ +static int __devinit +netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + struct net_device *netdev = NULL; + struct netxen_adapter *adapter = NULL; + struct netxen_port *port = NULL; + u8 __iomem *mem_ptr = NULL; + unsigned long mem_base, mem_len; + int pci_using_dac, i, err; + int ring; + struct netxen_recv_context *recv_ctx = NULL; + struct netxen_rcv_desc_ctx *rcv_desc = NULL; + struct netxen_cmd_buffer *cmd_buf_arr = NULL; + u64 mac_addr[FLASH_NUM_PORTS + 1]; + int valid_mac; + + if ((err = pci_enable_device(pdev))) + return err; + if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { + err = -ENODEV; + goto err_out_disable_pdev; + } + + if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) + goto err_out_disable_pdev; + + pci_set_master(pdev); + if ((pci_set_dma_mask(pdev, DMA_64BIT_MASK) == 0) && + (pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK) == 0)) + pci_using_dac = 1; + else { + if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) || + (err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))) + goto err_out_free_res; + + pci_using_dac = 0; + } + + /* remap phys address */ + mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ + mem_len = pci_resource_len(pdev, 0); + + /* 128 Meg of memory */ + mem_ptr = ioremap(mem_base, NETXEN_PCI_MAPSIZE_BYTES); + if (mem_ptr == 0UL) { + printk(KERN_ERR "%s: Cannot ioremap adapter memory aborting." + ":%p\n", netxen_nic_driver_name, mem_ptr); + err = -EIO; + goto err_out_free_res; + } + +/* + * Allocate a adapter structure which will manage all the initialization + * as well as the common resources for all ports... + * all the ports will have pointer to this adapter as well as Adapter + * will have pointers of all the ports structures. + */ + + /* One adapter structure for all 4 ports.... */ + adapter = kzalloc(sizeof(struct netxen_adapter), GFP_KERNEL); + if (adapter == NULL) { + printk(KERN_ERR "%s: Could not allocate adapter memory:%d\n", + netxen_nic_driver_name, + (int)sizeof(struct netxen_adapter)); + err = -ENOMEM; + goto err_out_iounmap; + } + + adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS; + adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS; + adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS; + + pci_set_drvdata(pdev, adapter); + + cmd_buf_arr = (struct netxen_cmd_buffer *)vmalloc(TX_RINGSIZE); + if (cmd_buf_arr == NULL) { + err = -ENOMEM; + goto err_out_free_adapter; + } + memset(cmd_buf_arr, 0, TX_RINGSIZE); + + for (i = 0; i < MAX_RCV_CTX; ++i) { + recv_ctx = &adapter->recv_ctx[i]; + for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { + rcv_desc = &recv_ctx->rcv_desc[ring]; + switch (RCV_DESC_TYPE(ring)) { + case RCV_DESC_NORMAL: + rcv_desc->max_rx_desc_count = + adapter->max_rx_desc_count; + rcv_desc->flags = RCV_DESC_NORMAL; + rcv_desc->dma_size = RX_DMA_MAP_LEN; + rcv_desc->skb_size = MAX_RX_BUFFER_LENGTH; + break; + + case RCV_DESC_JUMBO: + rcv_desc->max_rx_desc_count = + adapter->max_jumbo_rx_desc_count; + rcv_desc->flags = RCV_DESC_JUMBO; + rcv_desc->dma_size = RX_JUMBO_DMA_MAP_LEN; + rcv_desc->skb_size = MAX_RX_JUMBO_BUFFER_LENGTH; + break; + + } + rcv_desc->rx_buf_arr = (struct netxen_rx_buffer *) + vmalloc(RCV_BUFFSIZE); + + if (rcv_desc->rx_buf_arr == NULL) { + err = -ENOMEM; + goto err_out_free_rx_buffer; + } + memset(rcv_desc->rx_buf_arr, 0, RCV_BUFFSIZE); + } + + } + + adapter->ops = kzalloc(sizeof(struct netxen_drvops), GFP_KERNEL); + if (adapter->ops == NULL) { + printk(KERN_ERR + "%s: Could not allocate memory for adapter->ops:%d\n", + netxen_nic_driver_name, + (int)sizeof(struct netxen_adapter)); + err = -ENOMEM; + goto err_out_free_rx_buffer; + } + + adapter->cmd_buf_arr = cmd_buf_arr; + adapter->ahw.pci_base = mem_ptr; + spin_lock_init(&adapter->tx_lock); + spin_lock_init(&adapter->lock); + /* initialize the buffers in adapter */ + netxen_initialize_adapter_sw(adapter); + /* + * Set the CRB window to invalid. If any register in window 0 is + * accessed it should set the window to 0 and then reset it to 1. + */ + adapter->curr_window = 255; + /* + * Adapter in our case is quad port so initialize it before + * initializing the ports + */ + netxen_initialize_adapter_hw(adapter); /* initialize the adapter */ + + netxen_initialize_adapter_ops(adapter); + + init_timer(&adapter->watchdog_timer); + adapter->ahw.xg_linkup = 0; + adapter->watchdog_timer.function = &netxen_watchdog; + adapter->watchdog_timer.data = (unsigned long)adapter; + INIT_WORK(&adapter->watchdog_task, + (void (*)(void *))netxen_watchdog_task, adapter); + adapter->ahw.pdev = pdev; + adapter->proc_cmd_buf_counter = 0; + pci_read_config_byte(pdev, PCI_REVISION_ID, &adapter->ahw.revision_id); + + if (pci_enable_msi(pdev)) { + adapter->flags &= ~NETXEN_NIC_MSI_ENABLED; + printk(KERN_WARNING "%s: unable to allocate MSI interrupt" + " error\n", netxen_nic_driver_name); + } else + adapter->flags |= NETXEN_NIC_MSI_ENABLED; + + if (netxen_is_flash_supported(adapter) == 0 && + netxen_get_flash_mac_addr(adapter, mac_addr) == 0) + valid_mac = 1; + else + valid_mac = 0; + + /* initialize the all the ports */ + + for (i = 0; i < adapter->ahw.max_ports; i++) { + netdev = alloc_etherdev(sizeof(struct netxen_port)); + if (!netdev) { + printk(KERN_ERR "%s: could not allocate netdev for port" + " %d\n", netxen_nic_driver_name, i + 1); + goto err_out_free_dev; + } + + SET_MODULE_OWNER(netdev); + + port = netdev_priv(netdev); + port->netdev = netdev; + port->pdev = pdev; + port->adapter = adapter; + port->portnum = i; /* Gigabit port number from 0-3 */ + + netdev->open = netxen_nic_open; + netdev->stop = netxen_nic_close; + netdev->hard_start_xmit = netxen_nic_xmit_frame; + netdev->get_stats = netxen_nic_get_stats; + netdev->set_multicast_list = netxen_nic_set_multi; + netdev->set_mac_address = netxen_nic_set_mac; + netdev->change_mtu = netxen_nic_change_mtu; + netdev->do_ioctl = netxen_nic_ioctl; + netdev->tx_timeout = netxen_tx_timeout; + netdev->watchdog_timeo = HZ; + + SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); + netdev->poll = netxen_nic_poll; + netdev->weight = NETXEN_NETDEV_WEIGHT; +#ifdef CONFIG_NET_POLL_CONTROLLER + netdev->poll_controller = netxen_nic_poll_controller; +#endif + /* ScatterGather support */ + netdev->features = NETIF_F_SG; + netdev->features |= NETIF_F_IP_CSUM; + netdev->features |= NETIF_F_TSO; + + if (pci_using_dac) + netdev->features |= NETIF_F_HIGHDMA; + + if (valid_mac) { + unsigned char *p = (unsigned char *)&mac_addr[i]; + netdev->dev_addr[0] = *(p + 5); + netdev->dev_addr[1] = *(p + 4); + netdev->dev_addr[2] = *(p + 3); + netdev->dev_addr[3] = *(p + 2); + netdev->dev_addr[4] = *(p + 1); + netdev->dev_addr[5] = *(p + 0); + + memcpy(netdev->perm_addr, netdev->dev_addr, + netdev->addr_len); + if (!is_valid_ether_addr(netdev->perm_addr)) { + printk(KERN_ERR "%s: Bad MAC address " + "%02x:%02x:%02x:%02x:%02x:%02x.\n", + netxen_nic_driver_name, + netdev->dev_addr[0], + netdev->dev_addr[1], + netdev->dev_addr[2], + netdev->dev_addr[3], + netdev->dev_addr[4], + netdev->dev_addr[5]); + } else { + if (adapter->ops->macaddr_set) + adapter->ops->macaddr_set(port, + netdev-> + dev_addr); + } + } + INIT_WORK(&adapter->tx_timeout_task, + (void (*)(void *))netxen_tx_timeout_task, netdev); + netif_carrier_off(netdev); + netif_stop_queue(netdev); + + if ((err = register_netdev(netdev))) { + printk(KERN_ERR "%s: register_netdev failed port #%d" + " aborting\n", netxen_nic_driver_name, i + 1); + err = -EIO; + free_netdev(netdev); + goto err_out_free_dev; + } + adapter->port_count++; + adapter->active_ports = 0; + adapter->port[i] = port; + } + + /* + * Initialize all the CRB registers here. + */ + /* Window = 1 */ + writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMD_PRODUCER_OFFSET)); + writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMD_CONSUMER_OFFSET)); + writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_CMD_ADDR_LO)); + + netxen_phantom_init(adapter); + /* + * delay a while to ensure that the Pegs are up & running. + * Otherwise, we might see some flaky behaviour. + */ + udelay(100); + + switch (adapter->ahw.board_type) { + case NETXEN_NIC_GBE: + printk("%s: QUAD GbE board initialized\n", + netxen_nic_driver_name); + break; + + case NETXEN_NIC_XGBE: + printk("%s: XGbE board initialized\n", netxen_nic_driver_name); + break; + } + + adapter->driver_mismatch = 0; + + return 0; + + err_out_free_dev: + if (adapter->flags & NETXEN_NIC_MSI_ENABLED) + pci_disable_msi(pdev); + for (i = 0; i < adapter->port_count; i++) { + port = adapter->port[i]; + if ((port) && (port->netdev)) { + unregister_netdev(port->netdev); + free_netdev(port->netdev); + } + } + kfree(adapter->ops); + + err_out_free_rx_buffer: + for (i = 0; i < MAX_RCV_CTX; ++i) { + recv_ctx = &adapter->recv_ctx[i]; + for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { + rcv_desc = &recv_ctx->rcv_desc[ring]; + if (rcv_desc->rx_buf_arr != NULL) { + vfree(rcv_desc->rx_buf_arr); + rcv_desc->rx_buf_arr = NULL; + } + } + } + + vfree(cmd_buf_arr); + + kfree(adapter->port); + + err_out_free_adapter: + pci_set_drvdata(pdev, NULL); + kfree(adapter); + + err_out_iounmap: + iounmap(mem_ptr); + err_out_free_res: + pci_release_regions(pdev); + err_out_disable_pdev: + pci_disable_device(pdev); + return err; +} + +static void __devexit netxen_nic_remove(struct pci_dev *pdev) +{ + struct netxen_adapter *adapter; + struct netxen_port *port; + struct netxen_rx_buffer *buffer; + struct netxen_recv_context *recv_ctx; + struct netxen_rcv_desc_ctx *rcv_desc; + int i; + int ctxid, ring; + + adapter = pci_get_drvdata(pdev); + if (adapter == NULL) + return; + + netxen_nic_stop_all_ports(adapter); + /* leave the hw in the same state as reboot */ + netxen_pinit_from_rom(adapter, 0); + udelay(500); + netxen_load_firmware(adapter); + + if ((adapter->flags & NETXEN_NIC_MSI_ENABLED)) + netxen_nic_disable_int(adapter); + + udelay(500); /* Delay for a while to drain the DMA engines */ + for (i = 0; i < adapter->port_count; i++) { + port = adapter->port[i]; + if ((port) && (port->netdev)) { + unregister_netdev(port->netdev); + free_netdev(port->netdev); + } + } + + if ((adapter->flags & NETXEN_NIC_MSI_ENABLED)) + pci_disable_msi(pdev); + pci_set_drvdata(pdev, NULL); + if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) + netxen_free_hw_resources(adapter); + + iounmap(adapter->ahw.pci_base); + + pci_release_regions(pdev); + pci_disable_device(pdev); + + for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) { + recv_ctx = &adapter->recv_ctx[ctxid]; + for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { + rcv_desc = &recv_ctx->rcv_desc[ring]; + for (i = 0; i < rcv_desc->max_rx_desc_count; ++i) { + buffer = &(rcv_desc->rx_buf_arr[i]); + if (buffer->state == NETXEN_BUFFER_FREE) + continue; + pci_unmap_single(pdev, buffer->dma, + rcv_desc->dma_size, + PCI_DMA_FROMDEVICE); + if (buffer->skb != NULL) + dev_kfree_skb_any(buffer->skb); + } + vfree(rcv_desc->rx_buf_arr); + } + } + + vfree(adapter->cmd_buf_arr); + kfree(adapter->ops); + kfree(adapter); +} + +/* + * Called when a network interface is made active + * @returns 0 on success, negative value on failure + */ +static int netxen_nic_open(struct net_device *netdev) +{ + struct netxen_port *port = netdev_priv(netdev); + struct netxen_adapter *adapter = port->adapter; + struct netxen_rcv_desc_ctx *rcv_desc; + int err = 0; + int ctx, ring; + + if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { + err = netxen_init_firmware(adapter); + if (err != 0) { + printk(KERN_ERR "Failed to init firmware\n"); + return -EIO; + } + netxen_nic_flash_print(adapter); + + /* setup all the resources for the Phantom... */ + /* this include the descriptors for rcv, tx, and status */ + netxen_nic_clear_stats(adapter); + err = netxen_nic_hw_resources(adapter); + if (err) { + printk(KERN_ERR "Error in setting hw resources:%d\n", + err); + return err; + } + if (adapter->ops->init_port + && adapter->ops->init_port(adapter, port->portnum) != 0) { + printk(KERN_ERR "%s: Failed to initialize port %d\n", + netxen_nic_driver_name, port->portnum); + netxen_free_hw_resources(adapter); + return -EIO; + } + if (adapter->ops->init_niu) + adapter->ops->init_niu(adapter); + for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { + for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { + rcv_desc = + &adapter->recv_ctx[ctx].rcv_desc[ring]; + netxen_post_rx_buffers(adapter, ctx, ring); + } + } + adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; + } + adapter->active_ports++; + if (adapter->active_ports == 1) { + err = request_irq(adapter->ahw.pdev->irq, &netxen_intr, + SA_SHIRQ | SA_SAMPLE_RANDOM, netdev->name, + adapter); + if (err) { + printk(KERN_ERR "request_irq failed with: %d\n", err); + adapter->active_ports--; + return err; + } + adapter->irq = adapter->ahw.pdev->irq; + if (!adapter->driver_mismatch) + mod_timer(&adapter->watchdog_timer, jiffies); + + netxen_nic_enable_int(adapter); + } + + /* Done here again so that even if phantom sw overwrote it, + * we set it */ + if (adapter->ops->macaddr_set) + adapter->ops->macaddr_set(port, netdev->dev_addr); + netxen_nic_set_link_parameters(port); + + netxen_nic_set_multi(netdev); + if (!adapter->driver_mismatch) + netif_start_queue(netdev); + + return 0; +} + +/* + * netxen_nic_close - Disables a network interface entry point + */ +static int netxen_nic_close(struct net_device *netdev) +{ + struct netxen_port *port = netdev_priv(netdev); + struct netxen_adapter *adapter = port->adapter; + int i, j; + struct netxen_cmd_buffer *cmd_buff; + struct netxen_skb_frag *buffrag; + + netif_carrier_off(netdev); + netif_stop_queue(netdev); + + /* disable phy_ints */ + if (adapter->ops->disable_phy_interrupts) + adapter->ops->disable_phy_interrupts(adapter, port->portnum); + + adapter->active_ports--; + + if (!adapter->active_ports) { + netxen_nic_disable_int(adapter); + if (adapter->irq) + free_irq(adapter->irq, adapter); + cmd_buff = adapter->cmd_buf_arr; + for (i = 0; i < adapter->max_tx_desc_count; i++) { + buffrag = cmd_buff->frag_array; + if (buffrag->dma) { + pci_unmap_single(port->pdev, buffrag->dma, + buffrag->length, + PCI_DMA_TODEVICE); + buffrag->dma = (u64) NULL; + } + for (j = 0; j < cmd_buff->frag_count; j++) { + buffrag++; + if (buffrag->dma) { + pci_unmap_page(port->pdev, + buffrag->dma, + buffrag->length, + PCI_DMA_TODEVICE); + buffrag->dma = (u64) NULL; + } + } + /* Free the skb we received in netxen_nic_xmit_frame */ + if (cmd_buff->skb) { + dev_kfree_skb_any(cmd_buff->skb); + cmd_buff->skb = NULL; + } + cmd_buff++; + } + del_timer_sync(&adapter->watchdog_timer); + } + + return 0; +} + +static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) +{ + struct netxen_port *port = netdev_priv(netdev); + struct netxen_adapter *adapter = port->adapter; + struct netxen_hardware_context *hw = &adapter->ahw; + unsigned int first_seg_len = skb->len - skb->data_len; + struct netxen_skb_frag *buffrag; + unsigned int i; + + u32 producer = 0; + u32 saved_producer = 0; + struct cmd_desc_type0 *hwdesc; + int k; + struct netxen_cmd_buffer *pbuf = NULL; + unsigned int tries = 0; + static int dropped_packet = 0; + int frag_count; + u32 local_producer = 0; + u32 max_tx_desc_count = 0; + u32 last_cmd_consumer = 0; + int no_of_desc; + + port->stats.xmitcalled++; + frag_count = skb_shinfo(skb)->nr_frags + 1; + + if (unlikely(skb->len <= 0)) { + dev_kfree_skb_any(skb); + port->stats.badskblen++; + return NETDEV_TX_OK; + } + + if (frag_count > MAX_BUFFERS_PER_CMD) { + printk("%s: %s netxen_nic_xmit_frame: frag_count (%d)" + "too large, can handle only %d frags\n", + netxen_nic_driver_name, netdev->name, + frag_count, MAX_BUFFERS_PER_CMD); + port->stats.txdropped++; + if ((++dropped_packet & 0xff) == 0xff) + printk("%s: %s droppped packets = %d\n", + netxen_nic_driver_name, netdev->name, + dropped_packet); + + return NETDEV_TX_OK; + } + + /* + * Everything is set up. Now, we just need to transmit it out. + * Note that we have to copy the contents of buffer over to + * right place. Later on, this can be optimized out by de-coupling the + * producer index from the buffer index. + */ + retry_getting_window: + spin_lock_bh(&adapter->tx_lock); + if (adapter->total_threads == MAX_XMIT_PRODUCERS) { + spin_unlock_bh(&adapter->tx_lock); + /* + * Yield CPU + */ + if (!in_atomic()) + schedule(); + else { + for (i = 0; i < 20; i++) + cpu_relax(); /*This a nop instr on i386 */ + } + goto retry_getting_window; + } + local_producer = adapter->cmd_producer; + /* There 4 fragments per descriptor */ + no_of_desc = (frag_count + 3) >> 2; + if (skb_shinfo(skb)->gso_size > 0) { + no_of_desc++; + if (((skb->nh.iph)->ihl * sizeof(u32)) + + ((skb->h.th)->doff * sizeof(u32)) + + sizeof(struct ethhdr) > + (sizeof(struct cmd_desc_type0) - NET_IP_ALIGN)) { + no_of_desc++; + } + } + k = adapter->cmd_producer; + max_tx_desc_count = adapter->max_tx_desc_count; + last_cmd_consumer = adapter->last_cmd_consumer; + if ((k + no_of_desc) >= + ((last_cmd_consumer <= k) ? last_cmd_consumer + max_tx_desc_count : + last_cmd_consumer)) { + spin_unlock_bh(&adapter->tx_lock); + if (tries == 0) { + local_bh_disable(); + netxen_process_cmd_ring((unsigned long)adapter); + local_bh_enable(); + ++tries; + goto retry_getting_window; + } else { + port->stats.nocmddescriptor++; + DPRINTK(ERR, "No command descriptors available," + " producer = %d, consumer = %d count=%llu," + " dropping packet\n", producer, + adapter->last_cmd_consumer, + port->stats.nocmddescriptor); + + spin_lock_bh(&adapter->tx_lock); + netif_stop_queue(netdev); + port->flags |= NETXEN_NETDEV_STATUS; + spin_unlock_bh(&adapter->tx_lock); + return NETDEV_TX_BUSY; + } + } + k = get_index_range(k, max_tx_desc_count, no_of_desc); + adapter->cmd_producer = k; + adapter->total_threads++; + adapter->num_threads++; + + spin_unlock_bh(&adapter->tx_lock); + /* Copy the descriptors into the hardware */ + producer = local_producer; + saved_producer = producer; + hwdesc = &hw->cmd_desc_head[producer]; + memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); + /* Take skb->data itself */ + pbuf = &adapter->cmd_buf_arr[producer]; + if (skb_shinfo(skb)->gso_size > 0) { + pbuf->mss = skb_shinfo(skb)->gso_size; + hwdesc->mss = skb_shinfo(skb)->gso_size; + } else { + pbuf->mss = 0; + hwdesc->mss = 0; + } + pbuf->no_of_descriptors = no_of_desc; + pbuf->total_length = skb->len; + pbuf->skb = skb; + pbuf->cmd = TX_ETHER_PKT; + pbuf->frag_count = frag_count; + pbuf->port = port->portnum; + buffrag = &pbuf->frag_array[0]; + buffrag->dma = pci_map_single(port->pdev, skb->data, first_seg_len, + PCI_DMA_TODEVICE); + buffrag->length = first_seg_len; + CMD_DESC_TOTAL_LENGTH_WRT(hwdesc, skb->len); + hwdesc->num_of_buffers = frag_count; + hwdesc->opcode = TX_ETHER_PKT; + + CMD_DESC_PORT_WRT(hwdesc, port->portnum); + hwdesc->buffer1_length = cpu_to_le16(first_seg_len); + hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); + + for (i = 1, k = 1; i < frag_count; i++, k++) { + struct skb_frag_struct *frag; + int len, temp_len; + unsigned long offset; + dma_addr_t temp_dma; + + /* move to next desc. if there is a need */ + if ((i & 0x3) == 0) { + k = 0; + producer = get_next_index(producer, + adapter->max_tx_desc_count); + hwdesc = &hw->cmd_desc_head[producer]; + memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); + } + frag = &skb_shinfo(skb)->frags[i - 1]; + len = frag->size; + offset = frag->page_offset; + + temp_len = len; + temp_dma = pci_map_page(port->pdev, frag->page, offset, + len, PCI_DMA_TODEVICE); + + buffrag++; + buffrag->dma = temp_dma; + buffrag->length = temp_len; + + DPRINTK(INFO, "for loop. i=%d k=%d\n", i, k); + switch (k) { + case 0: + hwdesc->buffer1_length = cpu_to_le16(temp_len); + hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); + break; + case 1: + hwdesc->buffer2_length = cpu_to_le16(temp_len); + hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); + break; + case 2: + hwdesc->buffer3_length = cpu_to_le16(temp_len); + hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); + break; + case 3: + hwdesc->buffer4_length = temp_len; + hwdesc->addr_buffer4 = cpu_to_le64(temp_dma); + break; + } + frag++; + } + producer = get_next_index(producer, adapter->max_tx_desc_count); + + /* might change opcode to TX_TCP_LSO */ + netxen_tso_check(adapter, &hw->cmd_desc_head[saved_producer], skb); + + /* For LSO, we need to copy the MAC/IP/TCP headers into + * the descriptor ring + */ + if (hw->cmd_desc_head[saved_producer].opcode == TX_TCP_LSO) { + int hdr_len, first_hdr_len, more_hdr; + hdr_len = hw->cmd_desc_head[saved_producer].total_hdr_length; + if (hdr_len > (sizeof(struct cmd_desc_type0) - NET_IP_ALIGN)) { + first_hdr_len = + sizeof(struct cmd_desc_type0) - NET_IP_ALIGN; + more_hdr = 1; + } else { + first_hdr_len = hdr_len; + more_hdr = 0; + } + /* copy the MAC/IP/TCP headers to the cmd descriptor list */ + hwdesc = &hw->cmd_desc_head[producer]; + + /* copy the first 64 bytes */ + memcpy(((void *)hwdesc) + NET_IP_ALIGN, + (void *)(skb->data), first_hdr_len); + producer = get_next_index(producer, max_tx_desc_count); + + if (more_hdr) { + hwdesc = &hw->cmd_desc_head[producer]; + /* copy the next 64 bytes - should be enough except + * for pathological case + */ + memcpy((void *)hwdesc, (void *)(skb->data) + + first_hdr_len, hdr_len - first_hdr_len); + producer = get_next_index(producer, max_tx_desc_count); + } + } + spin_lock_bh(&adapter->tx_lock); + port->stats.txbytes += + CMD_DESC_TOTAL_LENGTH(&hw->cmd_desc_head[saved_producer]); + /* Code to update the adapter considering how many producer threads + are currently working */ + if ((--adapter->num_threads) == 0) { + /* This is the last thread */ + u32 crb_producer = adapter->cmd_producer; + writel(crb_producer, + NETXEN_CRB_NORMALIZE(adapter, CRB_CMD_PRODUCER_OFFSET)); + wmb(); + adapter->total_threads = 0; + } else { + u32 crb_producer = 0; + crb_producer = + readl(NETXEN_CRB_NORMALIZE + (adapter, CRB_CMD_PRODUCER_OFFSET)); + if (crb_producer == local_producer) { + crb_producer = get_index_range(crb_producer, + max_tx_desc_count, + no_of_desc); + writel(crb_producer, + NETXEN_CRB_NORMALIZE(adapter, + CRB_CMD_PRODUCER_OFFSET)); + wmb(); + } + } + + port->stats.xmitfinished++; + spin_unlock_bh(&adapter->tx_lock); + + netdev->trans_start = jiffies; + + DPRINTK(INFO, "wrote CMD producer %x to phantom\n", producer); + + DPRINTK(INFO, "Done. Send\n"); + return NETDEV_TX_OK; +} + +static void netxen_watchdog(unsigned long v) +{ + struct netxen_adapter *adapter = (struct netxen_adapter *)v; + schedule_work(&adapter->watchdog_task); +} + +static void netxen_tx_timeout(struct net_device *netdev) +{ + struct netxen_port *port = (struct netxen_port *)netdev_priv(netdev); + struct netxen_adapter *adapter = port->adapter; + + schedule_work(&adapter->tx_timeout_task); +} + +static void netxen_tx_timeout_task(struct net_device *netdev) +{ + struct netxen_port *port = (struct netxen_port *)netdev_priv(netdev); + unsigned long flags; + + printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", + netxen_nic_driver_name, netdev->name); + + spin_lock_irqsave(&port->adapter->lock, flags); + netxen_nic_close(netdev); + netxen_nic_open(netdev); + spin_unlock_irqrestore(&port->adapter->lock, flags); + netdev->trans_start = jiffies; + netif_wake_queue(netdev); +} + +static int +netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev) +{ + u32 ret = 0; + + DPRINTK(INFO, "Entered handle ISR\n"); + + adapter->stats.ints++; + + if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { + int count = 0; + u32 mask; + netxen_nic_disable_int(adapter); + /* Window = 0 or 1 */ + do { + writel(0xffffffff, (void __iomem *) + (adapter->ahw.pci_base + ISR_INT_TARGET_STATUS)); + mask = readl((void __iomem *) + (adapter->ahw.pci_base + ISR_INT_VECTOR)); + } while (((mask & 0x80) != 0) && (++count < 32)); + if ((mask & 0x80) != 0) + printk("Could not disable interrupt completely\n"); + + } + adapter->stats.hostints++; + + if (netxen_nic_rx_has_work(adapter) || netxen_nic_tx_has_work(adapter)) { + if (netif_rx_schedule_prep(netdev)) { + /* + * Interrupts are already disabled. + */ + __netif_rx_schedule(netdev); + } else { + static unsigned int intcount = 0; + if ((++intcount & 0xfff) == 0xfff) + printk(KERN_ERR + "%s: %s interrupt %d while in poll\n", + netxen_nic_driver_name, netdev->name, + intcount); + } + ret = 1; + } + + if (ret == 0) { + netxen_nic_enable_int(adapter); + } + + return ret; +} + +/* + * netxen_intr - Interrupt Handler + * @irq: interrupt number + * data points to adapter stucture (which may be handling more than 1 port + */ +irqreturn_t netxen_intr(int irq, void *data, struct pt_regs * regs) +{ + struct netxen_adapter *adapter; + struct netxen_port *port; + struct net_device *netdev; + int i; + + if (unlikely(!irq)) { + return IRQ_NONE; /* Not our interrupt */ + } + + adapter = (struct netxen_adapter *)data; + for (i = 0; i < adapter->ahw.max_ports; i++) { + port = adapter->port[i]; + netdev = port->netdev; + + /* process our status queue (for all 4 ports) */ + netxen_handle_int(adapter, netdev); + } + + return IRQ_HANDLED; +} + +static int netxen_nic_poll(struct net_device *netdev, int *budget) +{ + struct netxen_port *port = (struct netxen_port *)netdev_priv(netdev); + struct netxen_adapter *adapter = port->adapter; + int work_to_do = min(*budget, netdev->quota); + int done = 1; + int ctx; + int this_work_done; + + DPRINTK(INFO, "polling for %d descriptors\n", *budget); + port->stats.polled++; + + adapter->work_done = 0; + for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { + /* + * Fairness issue. This will give undue weight to the + * receive context 0. + */ + + /* + * To avoid starvation, we give each of our receivers, + * a fraction of the quota. Sometimes, it might happen that we + * have enough quota to process every packet, but since all the + * packets are on one context, it gets only half of the quota, + * and ends up not processing it. + */ + this_work_done = netxen_process_rcv_ring(adapter, ctx, + work_to_do / + MAX_RCV_CTX); + adapter->work_done += this_work_done; + } + + netdev->quota -= adapter->work_done; + *budget -= adapter->work_done; + + if (adapter->work_done >= work_to_do + && netxen_nic_rx_has_work(adapter) != 0) + done = 0; + + netxen_process_cmd_ring((unsigned long)adapter); + + DPRINTK(INFO, "new work_done: %d work_to_do: %d\n", + adapter->work_done, work_to_do); + if (done) { + netif_rx_complete(netdev); + netxen_nic_enable_int(adapter); + } + + return (done ? 0 : 1); +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void netxen_nic_poll_controller(struct net_device *netdev) +{ + struct netxen_port *port = netdev_priv(netdev); + struct netxen_adapter *adapter = port->adapter; + disable_irq(adapter->irq); + netxen_intr(adapter->irq, adapter, NULL); + enable_irq(adapter->irq); +} +#endif +/* + * netxen_nic_ioctl () We provide the tcl/phanmon support through these + * ioctls. + */ +static int +netxen_nic_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) +{ + int err = 0; + struct netxen_port *port = netdev_priv(netdev); + struct netxen_adapter *adapter = port->adapter; + + DPRINTK(INFO, "doing ioctl for %s\n", netdev->name); + switch (cmd) { + case NETXEN_NIC_CMD: + err = netxen_nic_do_ioctl(adapter, (void *)ifr->ifr_data, port); + break; + + case NETXEN_NIC_NAME: + DPRINTK(INFO, "ioctl cmd for NetXen\n"); + if (ifr->ifr_data) { + put_user(port->portnum, (u16 __user *) ifr->ifr_data); + } + break; + + default: + DPRINTK(INFO, "ioctl cmd %x not supported\n", cmd); + err = -EOPNOTSUPP; + break; + } + + return err; +} + +static struct pci_driver netxen_driver = { + .name = netxen_nic_driver_name, + .id_table = netxen_pci_tbl, + .probe = netxen_nic_probe, + .remove = __devexit_p(netxen_nic_remove) +}; + +/* Driver Registration on NetXen card */ + +static int __init netxen_init_module(void) +{ + printk(KERN_INFO "%s \n", netxen_nic_driver_string); + + return pci_module_init(&netxen_driver); +} + +module_init(netxen_init_module); + +static void __exit netxen_exit_module(void) +{ + /* + * Wait for some time to allow the dma to drain, if any. + */ + mdelay(5); + pci_unregister_driver(&netxen_driver); +} + +module_exit(netxen_exit_module); -- cgit v1.2.3 From 1494a81410d8c53fa6c800be1e22b6b6f64180e6 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Tue, 7 Nov 2006 05:12:16 -0500 Subject: [netdrvr] netxen: build fixes Most contributed and Signed-off-by: Andrew Morton with some from me as well. Signed-off-by: Jeff Garzik --- drivers/net/netxen/netxen_nic_main.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/net/netxen/netxen_nic_main.c') diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index b54ea164e0ea..145bf47f0a8d 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -38,6 +38,9 @@ #include "netxen_nic_phan_reg.h" #include "netxen_nic_ioctl.h" +#include +#include + MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); @@ -66,7 +69,7 @@ static int netxen_nic_poll(struct net_device *dev, int *budget); #ifdef CONFIG_NET_POLL_CONTROLLER static void netxen_nic_poll_controller(struct net_device *netdev); #endif -static irqreturn_t netxen_intr(int irq, void *data, struct pt_regs *regs); +static irqreturn_t netxen_intr(int irq, void *data); /* PCI Device ID Table */ static struct pci_device_id netxen_pci_tbl[] __devinitdata = { @@ -969,7 +972,7 @@ netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev) * @irq: interrupt number * data points to adapter stucture (which may be handling more than 1 port */ -irqreturn_t netxen_intr(int irq, void *data, struct pt_regs * regs) +irqreturn_t netxen_intr(int irq, void *data) { struct netxen_adapter *adapter; struct netxen_port *port; @@ -1049,7 +1052,7 @@ static void netxen_nic_poll_controller(struct net_device *netdev) struct netxen_port *port = netdev_priv(netdev); struct netxen_adapter *adapter = port->adapter; disable_irq(adapter->irq); - netxen_intr(adapter->irq, adapter, NULL); + netxen_intr(adapter->irq, adapter); enable_irq(adapter->irq); } #endif -- cgit v1.2.3 From edf901638144525a140c68be01be1b22e6041a6d Mon Sep 17 00:00:00 2001 From: "Amit S. Kale" Date: Wed, 29 Nov 2006 08:58:11 -0800 Subject: [PATCH] NetXen: Fixed /sys mapping between device and driver Signed-off-by: Amit S. Kale netxen_nic_main.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletion(-) Signed-off-by: Jeff Garzik --- drivers/net/netxen/netxen_nic_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/net/netxen/netxen_nic_main.c') diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 145bf47f0a8d..ffd272c93a6b 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -273,6 +273,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } SET_MODULE_OWNER(netdev); + SET_NETDEV_DEV(netdev, &pdev->dev); port = netdev_priv(netdev); port->netdev = netdev; @@ -1043,7 +1044,7 @@ static int netxen_nic_poll(struct net_device *netdev, int *budget) netxen_nic_enable_int(adapter); } - return (done ? 0 : 1); + return !done; } #ifdef CONFIG_NET_POLL_CONTROLLER -- cgit v1.2.3 From cb8011ad53e0855ef088e0e5a4bcb98fa90c70b6 Mon Sep 17 00:00:00 2001 From: "Amit S. Kale" Date: Wed, 29 Nov 2006 09:00:10 -0800 Subject: [PATCH] NetXen: temp monitoring, newer firmware support, mm footprint reduction NetXen: 1G/10G Ethernet Driver updates - Temparature monitoring and device control - Memory footprint reduction - Driver changes to support newer version of firmware Signed-off-by: Amit S. Kale netxen_nic.h | 165 ++++++++++++++++++++++++++++++++-- netxen_nic_ethtool.c | 89 ++++++++++++------ netxen_nic_hdr.h | 71 +++++++++++++- netxen_nic_hw.c | 206 +++++++++++++++++++++++++++++-------------- netxen_nic_hw.h | 8 + netxen_nic_init.c | 239 +++++++++++++++++++++++++++++++++++++++++--------- netxen_nic_ioctl.h | 12 +- netxen_nic_isr.c | 54 +++++------ netxen_nic_main.c | 121 +++++++++++++++++-------- netxen_nic_niu.c | 172 +++++++++++++++++++++++++++-------- netxen_nic_phan_reg.h | 24 ++++- 11 files changed, 891 insertions(+), 270 deletions(-) Signed-off-by: Jeff Garzik --- drivers/net/netxen/netxen_nic_main.c | 121 ++++++++++++++++++++++++----------- 1 file changed, 82 insertions(+), 39 deletions(-) (limited to 'drivers/net/netxen/netxen_nic_main.c') diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index ffd272c93a6b..cd1336e899b1 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -31,6 +31,7 @@ * */ +#include #include "netxen_nic_hw.h" #include "netxen_nic.h" @@ -41,16 +42,19 @@ #include #include +#define PHAN_VENDOR_ID 0x4040 + MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); char netxen_nic_driver_name[] = "netxen"; static char netxen_nic_driver_string[] = "NetXen Network Driver version " - NETXEN_NIC_LINUX_VERSIONID "-" NETXEN_NIC_BUILD_NO; + NETXEN_NIC_LINUX_VERSIONID; #define NETXEN_NETDEV_WEIGHT 120 #define NETXEN_ADAPTER_UP_MAGIC 777 +#define NETXEN_NIC_PEG_TUNE 0 /* Local functions to NetXen NIC driver */ static int __devinit netxen_nic_probe(struct pci_dev *pdev, @@ -101,7 +105,10 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct net_device *netdev = NULL; struct netxen_adapter *adapter = NULL; struct netxen_port *port = NULL; - u8 __iomem *mem_ptr = NULL; + u8 *mem_ptr0 = NULL; + u8 *mem_ptr1 = NULL; + u8 *mem_ptr2 = NULL; + unsigned long mem_base, mem_len; int pci_using_dac, i, err; int ring; @@ -111,6 +118,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) u64 mac_addr[FLASH_NUM_PORTS + 1]; int valid_mac; + printk(KERN_INFO "%s \n", netxen_nic_driver_string); if ((err = pci_enable_device(pdev))) return err; if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { @@ -138,11 +146,26 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) mem_len = pci_resource_len(pdev, 0); /* 128 Meg of memory */ - mem_ptr = ioremap(mem_base, NETXEN_PCI_MAPSIZE_BYTES); - if (mem_ptr == 0UL) { - printk(KERN_ERR "%s: Cannot ioremap adapter memory aborting." - ":%p\n", netxen_nic_driver_name, mem_ptr); + mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); + mem_ptr1 = + ioremap(mem_base + SECOND_PAGE_GROUP_START, SECOND_PAGE_GROUP_SIZE); + mem_ptr2 = + ioremap(mem_base + THIRD_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); + + if ((mem_ptr0 == 0UL) || (mem_ptr1 == 0UL) || (mem_ptr2 == 0UL)) { + DPRINTK(1, ERR, + "Cannot remap adapter memory aborting.:" + "0 -> %p, 1 -> %p, 2 -> %p\n", + mem_ptr0, mem_ptr1, mem_ptr2); + err = -EIO; + if (mem_ptr0) + iounmap(mem_ptr0); + if (mem_ptr1) + iounmap(mem_ptr1); + if (mem_ptr2) + iounmap(mem_ptr2); + goto err_out_free_res; } @@ -221,9 +244,17 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } adapter->cmd_buf_arr = cmd_buf_arr; - adapter->ahw.pci_base = mem_ptr; + adapter->ahw.pci_base0 = mem_ptr0; + adapter->ahw.pci_base1 = mem_ptr1; + adapter->ahw.pci_base2 = mem_ptr2; spin_lock_init(&adapter->tx_lock); spin_lock_init(&adapter->lock); +#ifdef CONFIG_IA64 + netxen_pinit_from_rom(adapter, 0); + udelay(500); + netxen_load_firmware(adapter); +#endif + /* initialize the buffers in adapter */ netxen_initialize_adapter_sw(adapter); /* @@ -262,6 +293,20 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) else valid_mac = 0; + /* + * Initialize all the CRB registers here. + */ + writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMD_PRODUCER_OFFSET)); + writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMD_CONSUMER_OFFSET)); + writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_CMD_ADDR_LO)); + + /* Unlock the HW, prompting the boot sequence */ + writel(1, + NETXEN_CRB_NORMALIZE(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE)); + + /* Handshake with the card before we register the devices. */ + netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); + /* initialize the all the ports */ for (i = 0; i < adapter->ahw.max_ports; i++) { @@ -351,15 +396,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) adapter->port[i] = port; } - /* - * Initialize all the CRB registers here. - */ - /* Window = 1 */ - writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMD_PRODUCER_OFFSET)); - writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMD_CONSUMER_OFFSET)); - writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_CMD_ADDR_LO)); - - netxen_phantom_init(adapter); /* * delay a while to ensure that the Pegs are up & running. * Otherwise, we might see some flaky behaviour. @@ -414,7 +450,10 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) kfree(adapter); err_out_iounmap: - iounmap(mem_ptr); + iounmap(mem_ptr0); + iounmap(mem_ptr1); + iounmap(mem_ptr2); + err_out_free_res: pci_release_regions(pdev); err_out_disable_pdev: @@ -460,7 +499,9 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev) if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) netxen_free_hw_resources(adapter); - iounmap(adapter->ahw.pci_base); + iounmap(adapter->ahw.pci_base0); + iounmap(adapter->ahw.pci_base1); + iounmap(adapter->ahw.pci_base2); pci_release_regions(pdev); pci_disable_device(pdev); @@ -496,7 +537,6 @@ static int netxen_nic_open(struct net_device *netdev) { struct netxen_port *port = netdev_priv(netdev); struct netxen_adapter *adapter = port->adapter; - struct netxen_rcv_desc_ctx *rcv_desc; int err = 0; int ctx, ring; @@ -527,11 +567,8 @@ static int netxen_nic_open(struct net_device *netdev) if (adapter->ops->init_niu) adapter->ops->init_niu(adapter); for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { - for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { - rcv_desc = - &adapter->recv_ctx[ctx].rcv_desc[ring]; + for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) netxen_post_rx_buffers(adapter, ctx, ring); - } } adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; } @@ -579,10 +616,6 @@ static int netxen_nic_close(struct net_device *netdev) netif_carrier_off(netdev); netif_stop_queue(netdev); - /* disable phy_ints */ - if (adapter->ops->disable_phy_interrupts) - adapter->ops->disable_phy_interrupts(adapter, port->portnum); - adapter->active_ports--; if (!adapter->active_ports) { @@ -690,13 +723,16 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) local_producer = adapter->cmd_producer; /* There 4 fragments per descriptor */ no_of_desc = (frag_count + 3) >> 2; - if (skb_shinfo(skb)->gso_size > 0) { - no_of_desc++; - if (((skb->nh.iph)->ihl * sizeof(u32)) + - ((skb->h.th)->doff * sizeof(u32)) + - sizeof(struct ethhdr) > - (sizeof(struct cmd_desc_type0) - NET_IP_ALIGN)) { + if (netdev->features & NETIF_F_TSO) { + if (skb_shinfo(skb)->gso_size > 0) { + no_of_desc++; + if (((skb->nh.iph)->ihl * sizeof(u32)) + + ((skb->h.th)->doff * sizeof(u32)) + + sizeof(struct ethhdr) > + (sizeof(struct cmd_desc_type0) - NET_IP_ALIGN)) { + no_of_desc++; + } } } k = adapter->cmd_producer; @@ -740,7 +776,7 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); /* Take skb->data itself */ pbuf = &adapter->cmd_buf_arr[producer]; - if (skb_shinfo(skb)->gso_size > 0) { + if ((netdev->features & NETIF_F_TSO) && skb_shinfo(skb)->gso_size > 0) { pbuf->mss = skb_shinfo(skb)->gso_size; hwdesc->mss = skb_shinfo(skb)->gso_size; } else { @@ -934,9 +970,10 @@ netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev) /* Window = 0 or 1 */ do { writel(0xffffffff, (void __iomem *) - (adapter->ahw.pci_base + ISR_INT_TARGET_STATUS)); + (PCI_OFFSET_SECOND_RANGE + (adapter, ISR_INT_TARGET_STATUS))); mask = readl((void __iomem *) - (adapter->ahw.pci_base + ISR_INT_VECTOR)); + pci_base_offset(adapter, ISR_INT_VECTOR)); } while (((mask & 0x80) != 0) && (++count < 32)); if ((mask & 0x80) != 0) printk("Could not disable interrupt completely\n"); @@ -1065,8 +1102,10 @@ static int netxen_nic_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) { int err = 0; + unsigned long nr_bytes = 0; struct netxen_port *port = netdev_priv(netdev); struct netxen_adapter *adapter = port->adapter; + char dev_name[NETXEN_NIC_NAME_LEN]; DPRINTK(INFO, "doing ioctl for %s\n", netdev->name); switch (cmd) { @@ -1077,7 +1116,13 @@ netxen_nic_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) case NETXEN_NIC_NAME: DPRINTK(INFO, "ioctl cmd for NetXen\n"); if (ifr->ifr_data) { - put_user(port->portnum, (u16 __user *) ifr->ifr_data); + sprintf(dev_name, "%s-%d", NETXEN_NIC_NAME_RSP, + port->portnum); + nr_bytes = copy_to_user((char *)ifr->ifr_data, dev_name, + NETXEN_NIC_NAME_LEN); + if (nr_bytes) + err = -EIO; + } break; @@ -1101,8 +1146,6 @@ static struct pci_driver netxen_driver = { static int __init netxen_init_module(void) { - printk(KERN_INFO "%s \n", netxen_nic_driver_string); - return pci_module_init(&netxen_driver); } -- cgit v1.2.3 From 71bd7877d470b4037c9ef0d060ac39228f0f6289 Mon Sep 17 00:00:00 2001 From: "Amit S. Kale" Date: Fri, 1 Dec 2006 05:36:22 -0800 Subject: [PATCH] NetXen: driver cleanup, removed unnecessary __iomem type casts Signed-off-by: Amit S. Kale netxen_nic.h | 38 ++++++++------------------------------ netxen_nic_ethtool.c | 5 ++--- netxen_nic_hw.c | 12 +++++------- netxen_nic_main.c | 8 +++----- 4 files changed, 18 insertions(+), 45 deletions(-) Signed-off-by: Jeff Garzik --- drivers/net/netxen/netxen_nic_main.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'drivers/net/netxen/netxen_nic_main.c') diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index cd1336e899b1..1cb662d5bd76 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -969,11 +969,9 @@ netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev) netxen_nic_disable_int(adapter); /* Window = 0 or 1 */ do { - writel(0xffffffff, (void __iomem *) - (PCI_OFFSET_SECOND_RANGE - (adapter, ISR_INT_TARGET_STATUS))); - mask = readl((void __iomem *) - pci_base_offset(adapter, ISR_INT_VECTOR)); + writel(0xffffffff, PCI_OFFSET_SECOND_RANGE(adapter, + ISR_INT_TARGET_STATUS)); + mask = readl(pci_base_offset(adapter, ISR_INT_VECTOR)); } while (((mask & 0x80) != 0) && (++count < 32)); if ((mask & 0x80) != 0) printk("Could not disable interrupt completely\n"); -- cgit v1.2.3 From 80922fbcb6f00127e91580e7565bb665947ac5d3 Mon Sep 17 00:00:00 2001 From: "Amit S. Kale" Date: Mon, 4 Dec 2006 09:18:00 -0800 Subject: [PATCH] NetXen: whitespace cleaup and more cleanup fixes Signed-off-by: Amit S. Kale netxen_nic.h | 56 ++++++++++++++++++++-------------------------- netxen_nic_ethtool.c | 53 +++++++++++++++++++++----------------------- netxen_nic_hdr.h | 6 ++--- netxen_nic_hw.c | 54 +++++++++++++++++++++------------------------ netxen_nic_hw.h | 10 ++++---- netxen_nic_init.c | 61 +++++++++++++++++++++++++-------------------------- netxen_nic_ioctl.h | 6 ++--- netxen_nic_isr.c | 48 +++++++++++++++++----------------------- netxen_nic_main.c | 54 +++++++++++++++++---------------------------- netxen_nic_niu.c | 10 ++++---- 10 files changed, 165 insertions(+), 193 deletions(-) Signed-off-by: Jeff Garzik --- drivers/net/netxen/netxen_nic_main.c | 54 ++++++++++++++---------------------- 1 file changed, 21 insertions(+), 33 deletions(-) (limited to 'drivers/net/netxen/netxen_nic_main.c') diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 1cb662d5bd76..6dbdc8be3949 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -1,25 +1,25 @@ /* * Copyright (C) 2003 - 2006 NetXen, Inc. * All rights reserved. - * + * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * + * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, * MA 02111-1307, USA. - * + * * The full GNU General Public License is included in this distribution * in the file called LICENSE. - * + * * Contact Information: * info@netxen.com * NetXen, @@ -233,16 +233,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } - adapter->ops = kzalloc(sizeof(struct netxen_drvops), GFP_KERNEL); - if (adapter->ops == NULL) { - printk(KERN_ERR - "%s: Could not allocate memory for adapter->ops:%d\n", - netxen_nic_driver_name, - (int)sizeof(struct netxen_adapter)); - err = -ENOMEM; - goto err_out_free_rx_buffer; - } - adapter->cmd_buf_arr = cmd_buf_arr; adapter->ahw.pci_base0 = mem_ptr0; adapter->ahw.pci_base1 = mem_ptr1; @@ -373,10 +363,9 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) netdev->dev_addr[4], netdev->dev_addr[5]); } else { - if (adapter->ops->macaddr_set) - adapter->ops->macaddr_set(port, - netdev-> - dev_addr); + if (adapter->macaddr_set) + adapter->macaddr_set(port, + netdev->dev_addr); } } INIT_WORK(&adapter->tx_timeout_task, @@ -427,7 +416,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) free_netdev(port->netdev); } } - kfree(adapter->ops); err_out_free_rx_buffer: for (i = 0; i < MAX_RCV_CTX; ++i) { @@ -525,7 +513,6 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev) } vfree(adapter->cmd_buf_arr); - kfree(adapter->ops); kfree(adapter); } @@ -557,15 +544,15 @@ static int netxen_nic_open(struct net_device *netdev) err); return err; } - if (adapter->ops->init_port - && adapter->ops->init_port(adapter, port->portnum) != 0) { + if (adapter->init_port + && adapter->init_port(adapter, port->portnum) != 0) { printk(KERN_ERR "%s: Failed to initialize port %d\n", netxen_nic_driver_name, port->portnum); netxen_free_hw_resources(adapter); return -EIO; } - if (adapter->ops->init_niu) - adapter->ops->init_niu(adapter); + if (adapter->init_niu) + adapter->init_niu(adapter); for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) netxen_post_rx_buffers(adapter, ctx, ring); @@ -591,8 +578,8 @@ static int netxen_nic_open(struct net_device *netdev) /* Done here again so that even if phantom sw overwrote it, * we set it */ - if (adapter->ops->macaddr_set) - adapter->ops->macaddr_set(port, netdev->dev_addr); + if (adapter->macaddr_set) + adapter->macaddr_set(port, netdev->dev_addr); netxen_nic_set_link_parameters(port); netxen_nic_set_multi(netdev); @@ -1039,11 +1026,12 @@ static int netxen_nic_poll(struct net_device *netdev, int *budget) int done = 1; int ctx; int this_work_done; + int work_done = 0; DPRINTK(INFO, "polling for %d descriptors\n", *budget); port->stats.polled++; - adapter->work_done = 0; + work_done = 0; for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { /* * Fairness issue. This will give undue weight to the @@ -1060,20 +1048,20 @@ static int netxen_nic_poll(struct net_device *netdev, int *budget) this_work_done = netxen_process_rcv_ring(adapter, ctx, work_to_do / MAX_RCV_CTX); - adapter->work_done += this_work_done; + work_done += this_work_done; } - netdev->quota -= adapter->work_done; - *budget -= adapter->work_done; + netdev->quota -= work_done; + *budget -= work_done; - if (adapter->work_done >= work_to_do + if (work_done >= work_to_do && netxen_nic_rx_has_work(adapter) != 0) done = 0; netxen_process_cmd_ring((unsigned long)adapter); DPRINTK(INFO, "new work_done: %d work_to_do: %d\n", - adapter->work_done, work_to_do); + work_done, work_to_do); if (done) { netif_rx_complete(netdev); netxen_nic_enable_int(adapter); -- cgit v1.2.3 From ed25ffa16434724f5ed825aa48734c7f3aefa203 Mon Sep 17 00:00:00 2001 From: "Amit S. Kale" Date: Mon, 4 Dec 2006 09:23:25 -0800 Subject: [PATCH] NetXen: multiport firmware support, ioctl interface NetXen: 1G/10G Ethernet driver updates - Multiport and newer firmware support - ioctl interface for user level tools - Cast error fix for multiport Signed-off-by: Amit S. Kale netxen_nic.h | 281 +++++++++++++++++++++++++------- netxen_nic_ethtool.c | 12 - netxen_nic_hw.c | 429 +++++++++++++++++++++++++++++++++++++++++--------- netxen_nic_init.c | 301 ++++++++++++++++++++++++++++++----- netxen_nic_ioctl.h | 2 netxen_nic_isr.c | 3 netxen_nic_main.c | 260 ++++++++++++++++++------------ netxen_nic_niu.c | 22 +- netxen_nic_phan_reg.h | 228 ++++++++++++++++---------- 9 files changed, 1161 insertions(+), 377 deletions(-) Signed-off-by: Jeff Garzik --- drivers/net/netxen/netxen_nic_main.c | 260 +++++++++++++++++++++-------------- 1 file changed, 160 insertions(+), 100 deletions(-) (limited to 'drivers/net/netxen/netxen_nic_main.c') diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 6dbdc8be3949..06c4778f5200 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -32,6 +32,7 @@ */ #include +#include #include "netxen_nic_hw.h" #include "netxen_nic.h" @@ -48,14 +49,21 @@ MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); -char netxen_nic_driver_name[] = "netxen"; +char netxen_nic_driver_name[] = "netxen-nic"; static char netxen_nic_driver_string[] = "NetXen Network Driver version " NETXEN_NIC_LINUX_VERSIONID; +struct netxen_adapter *g_adapter = NULL; + #define NETXEN_NETDEV_WEIGHT 120 #define NETXEN_ADAPTER_UP_MAGIC 777 #define NETXEN_NIC_PEG_TUNE 0 +u8 nx_p2_id = NX_P2_C0; + +#define DMA_32BIT_MASK 0x00000000ffffffffULL +#define DMA_35BIT_MASK 0x00000007ffffffffULL + /* Local functions to NetXen NIC driver */ static int __devinit netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent); @@ -87,6 +95,9 @@ static struct pci_device_id netxen_pci_tbl[] __devinitdata = { MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); +struct workqueue_struct *netxen_workq; +static void netxen_watchdog(unsigned long); + /* * netxen_nic_probe() * @@ -105,20 +116,28 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct net_device *netdev = NULL; struct netxen_adapter *adapter = NULL; struct netxen_port *port = NULL; - u8 *mem_ptr0 = NULL; - u8 *mem_ptr1 = NULL; - u8 *mem_ptr2 = NULL; + void __iomem *mem_ptr0 = NULL; + void __iomem *mem_ptr1 = NULL; + void __iomem *mem_ptr2 = NULL; - unsigned long mem_base, mem_len; + u8 *db_ptr = NULL; + unsigned long mem_base, mem_len, db_base, db_len; int pci_using_dac, i, err; int ring; struct netxen_recv_context *recv_ctx = NULL; struct netxen_rcv_desc_ctx *rcv_desc = NULL; struct netxen_cmd_buffer *cmd_buf_arr = NULL; u64 mac_addr[FLASH_NUM_PORTS + 1]; - int valid_mac; + int valid_mac = 0; + static int netxen_cards_found = 0; printk(KERN_INFO "%s \n", netxen_nic_driver_string); + /* In current scheme, we use only PCI function 0 */ + if (PCI_FUNC(pdev->devfn) != 0) { + DPRINTK(ERR, "NetXen function %d will not be enabled.\n", + PCI_FUNC(pdev->devfn)); + return -ENODEV; + } if ((err = pci_enable_device(pdev))) return err; if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { @@ -130,10 +149,12 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_out_disable_pdev; pci_set_master(pdev); - if ((pci_set_dma_mask(pdev, DMA_64BIT_MASK) == 0) && - (pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK) == 0)) + pci_read_config_byte(pdev, PCI_REVISION_ID, &nx_p2_id); + if (nx_p2_id == NX_P2_C1 && + (pci_set_dma_mask(pdev, DMA_35BIT_MASK) == 0) && + (pci_set_consistent_dma_mask(pdev, DMA_35BIT_MASK) == 0)) { pci_using_dac = 1; - else { + } else { if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) || (err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))) goto err_out_free_res; @@ -153,21 +174,34 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ioremap(mem_base + THIRD_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); if ((mem_ptr0 == 0UL) || (mem_ptr1 == 0UL) || (mem_ptr2 == 0UL)) { - DPRINTK(1, ERR, + DPRINTK(ERR, "Cannot remap adapter memory aborting.:" "0 -> %p, 1 -> %p, 2 -> %p\n", mem_ptr0, mem_ptr1, mem_ptr2); err = -EIO; - if (mem_ptr0) - iounmap(mem_ptr0); - if (mem_ptr1) - iounmap(mem_ptr1); - if (mem_ptr2) - iounmap(mem_ptr2); - - goto err_out_free_res; + goto err_out_iounmap; + } + db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ + db_len = pci_resource_len(pdev, 4); + + if (db_len == 0) { + printk(KERN_ERR "%s: doorbell is disabled\n", + netxen_nic_driver_name); + err = -EIO; + goto err_out_iounmap; + } + DPRINTK(INFO, "doorbell ioremap from %lx a size of %lx\n", db_base, + db_len); + + db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); + if (db_ptr == 0UL) { + printk(KERN_ERR "%s: Failed to allocate doorbell map.", + netxen_nic_driver_name); + err = -EIO; + goto err_out_iounmap; } + DPRINTK(INFO, "doorbell ioremaped at %p\n", db_ptr); /* * Allocate a adapter structure which will manage all the initialization @@ -183,17 +217,24 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) netxen_nic_driver_name, (int)sizeof(struct netxen_adapter)); err = -ENOMEM; - goto err_out_iounmap; + goto err_out_dbunmap; } + if (netxen_cards_found == 0) { + g_adapter = adapter; + } adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS; adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS; adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS; + adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS; pci_set_drvdata(pdev, adapter); cmd_buf_arr = (struct netxen_cmd_buffer *)vmalloc(TX_RINGSIZE); if (cmd_buf_arr == NULL) { + printk(KERN_ERR + "%s: Could not allocate cmd_buf_arr memory:%d\n", + netxen_nic_driver_name, (int)TX_RINGSIZE); err = -ENOMEM; goto err_out_free_adapter; } @@ -220,11 +261,23 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) rcv_desc->skb_size = MAX_RX_JUMBO_BUFFER_LENGTH; break; + case RCV_RING_LRO: + rcv_desc->max_rx_desc_count = + adapter->max_lro_rx_desc_count; + rcv_desc->flags = RCV_DESC_LRO; + rcv_desc->dma_size = RX_LRO_DMA_MAP_LEN; + rcv_desc->skb_size = MAX_RX_LRO_BUFFER_LENGTH; + break; + } rcv_desc->rx_buf_arr = (struct netxen_rx_buffer *) vmalloc(RCV_BUFFSIZE); if (rcv_desc->rx_buf_arr == NULL) { + printk(KERN_ERR "%s: Could not allocate" + "rcv_desc->rx_buf_arr memory:%d\n", + netxen_nic_driver_name, + (int)RCV_BUFFSIZE); err = -ENOMEM; goto err_out_free_rx_buffer; } @@ -237,16 +290,17 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) adapter->ahw.pci_base0 = mem_ptr0; adapter->ahw.pci_base1 = mem_ptr1; adapter->ahw.pci_base2 = mem_ptr2; + adapter->ahw.db_base = db_ptr; + adapter->ahw.db_len = db_len; spin_lock_init(&adapter->tx_lock); spin_lock_init(&adapter->lock); + netxen_initialize_adapter_sw(adapter); /* initialize the buffers in adapter */ #ifdef CONFIG_IA64 netxen_pinit_from_rom(adapter, 0); udelay(500); netxen_load_firmware(adapter); #endif - /* initialize the buffers in adapter */ - netxen_initialize_adapter_sw(adapter); /* * Set the CRB window to invalid. If any register in window 0 is * accessed it should set the window to 0 and then reset it to 1. @@ -268,7 +322,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) (void (*)(void *))netxen_watchdog_task, adapter); adapter->ahw.pdev = pdev; adapter->proc_cmd_buf_counter = 0; - pci_read_config_byte(pdev, PCI_REVISION_ID, &adapter->ahw.revision_id); + adapter->ahw.revision_id = nx_p2_id; if (pci_enable_msi(pdev)) { adapter->flags &= ~NETXEN_NIC_MSI_ENABLED; @@ -290,6 +344,12 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMD_CONSUMER_OFFSET)); writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_CMD_ADDR_LO)); + /* do this before waking up pegs so that we have valid dummy dma addr */ + err = netxen_initialize_adapter_offload(adapter); + if (err) { + goto err_out_free_dev; + } + /* Unlock the HW, prompting the boot sequence */ writel(1, NETXEN_CRB_NORMALIZE(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE)); @@ -298,6 +358,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); /* initialize the all the ports */ + adapter->active_ports = 0; for (i = 0; i < adapter->ahw.max_ports; i++) { netdev = alloc_etherdev(sizeof(struct netxen_port)); @@ -368,7 +429,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) netdev->dev_addr); } } - INIT_WORK(&adapter->tx_timeout_task, + INIT_WORK(adapter->tx_timeout_task + i, (void (*)(void *))netxen_tx_timeout_task, netdev); netif_carrier_off(netdev); netif_stop_queue(netdev); @@ -381,7 +442,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_out_free_dev; } adapter->port_count++; - adapter->active_ports = 0; adapter->port[i] = port; } @@ -402,6 +462,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) break; } + adapter->number = netxen_cards_found; adapter->driver_mismatch = 0; return 0; @@ -417,6 +478,8 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } } + netxen_free_adapter_offload(adapter); + err_out_free_rx_buffer: for (i = 0; i < MAX_RCV_CTX; ++i) { recv_ctx = &adapter->recv_ctx[i]; @@ -428,19 +491,23 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } } } - vfree(cmd_buf_arr); - kfree(adapter->port); - err_out_free_adapter: pci_set_drvdata(pdev, NULL); kfree(adapter); + err_out_dbunmap: + if (db_ptr) + iounmap(db_ptr); + err_out_iounmap: - iounmap(mem_ptr0); - iounmap(mem_ptr1); - iounmap(mem_ptr2); + if (mem_ptr0) + iounmap(mem_ptr0); + if (mem_ptr1) + iounmap(mem_ptr1); + if (mem_ptr2) + iounmap(mem_ptr2); err_out_free_res: pci_release_regions(pdev); @@ -465,12 +532,8 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev) netxen_nic_stop_all_ports(adapter); /* leave the hw in the same state as reboot */ - netxen_pinit_from_rom(adapter, 0); - udelay(500); netxen_load_firmware(adapter); - - if ((adapter->flags & NETXEN_NIC_MSI_ENABLED)) - netxen_nic_disable_int(adapter); + netxen_free_adapter_offload(adapter); udelay(500); /* Delay for a while to drain the DMA engines */ for (i = 0; i < adapter->port_count; i++) { @@ -487,6 +550,7 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev) if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) netxen_free_hw_resources(adapter); + iounmap(adapter->ahw.db_base); iounmap(adapter->ahw.pci_base0); iounmap(adapter->ahw.pci_base1); iounmap(adapter->ahw.pci_base2); @@ -534,6 +598,8 @@ static int netxen_nic_open(struct net_device *netdev) return -EIO; } netxen_nic_flash_print(adapter); + if (adapter->init_niu) + adapter->init_niu(adapter); /* setup all the resources for the Phantom... */ /* this include the descriptors for rcv, tx, and status */ @@ -551,25 +617,24 @@ static int netxen_nic_open(struct net_device *netdev) netxen_free_hw_resources(adapter); return -EIO; } - if (adapter->init_niu) - adapter->init_niu(adapter); for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) netxen_post_rx_buffers(adapter, ctx, ring); } - adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; - } - adapter->active_ports++; - if (adapter->active_ports == 1) { + adapter->irq = adapter->ahw.pdev->irq; err = request_irq(adapter->ahw.pdev->irq, &netxen_intr, SA_SHIRQ | SA_SAMPLE_RANDOM, netdev->name, adapter); if (err) { printk(KERN_ERR "request_irq failed with: %d\n", err); - adapter->active_ports--; + netxen_free_hw_resources(adapter); return err; } - adapter->irq = adapter->ahw.pdev->irq; + + adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; + } + adapter->active_ports++; + if (adapter->active_ports == 1) { if (!adapter->driver_mismatch) mod_timer(&adapter->watchdog_timer, jiffies); @@ -583,6 +648,9 @@ static int netxen_nic_open(struct net_device *netdev) netxen_nic_set_link_parameters(port); netxen_nic_set_multi(netdev); + if (adapter->set_mtu) + adapter->set_mtu(port, netdev->mtu); + if (!adapter->driver_mismatch) netif_start_queue(netdev); @@ -635,6 +703,7 @@ static int netxen_nic_close(struct net_device *netdev) } cmd_buff++; } + FLUSH_SCHEDULED_WORK(); del_timer_sync(&adapter->watchdog_timer); } @@ -655,7 +724,6 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) struct cmd_desc_type0 *hwdesc; int k; struct netxen_cmd_buffer *pbuf = NULL; - unsigned int tries = 0; static int dropped_packet = 0; int frag_count; u32 local_producer = 0; @@ -717,7 +785,7 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) if (((skb->nh.iph)->ihl * sizeof(u32)) + ((skb->h.th)->doff * sizeof(u32)) + sizeof(struct ethhdr) > - (sizeof(struct cmd_desc_type0) - NET_IP_ALIGN)) { + (sizeof(struct cmd_desc_type0) - 2)) { no_of_desc++; } } @@ -728,27 +796,17 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) if ((k + no_of_desc) >= ((last_cmd_consumer <= k) ? last_cmd_consumer + max_tx_desc_count : last_cmd_consumer)) { + port->stats.nocmddescriptor++; + DPRINTK(ERR, "No command descriptors available," + " producer = %d, consumer = %d count=%llu," + " dropping packet\n", producer, + adapter->last_cmd_consumer, + port->stats.nocmddescriptor); + + netif_stop_queue(netdev); + port->flags |= NETXEN_NETDEV_STATUS; spin_unlock_bh(&adapter->tx_lock); - if (tries == 0) { - local_bh_disable(); - netxen_process_cmd_ring((unsigned long)adapter); - local_bh_enable(); - ++tries; - goto retry_getting_window; - } else { - port->stats.nocmddescriptor++; - DPRINTK(ERR, "No command descriptors available," - " producer = %d, consumer = %d count=%llu," - " dropping packet\n", producer, - adapter->last_cmd_consumer, - port->stats.nocmddescriptor); - - spin_lock_bh(&adapter->tx_lock); - netif_stop_queue(netdev); - port->flags |= NETXEN_NETDEV_STATUS; - spin_unlock_bh(&adapter->tx_lock); - return NETDEV_TX_BUSY; - } + return NETDEV_TX_BUSY; } k = get_index_range(k, max_tx_desc_count, no_of_desc); adapter->cmd_producer = k; @@ -770,7 +828,6 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) pbuf->mss = 0; hwdesc->mss = 0; } - pbuf->no_of_descriptors = no_of_desc; pbuf->total_length = skb->len; pbuf->skb = skb; pbuf->cmd = TX_ETHER_PKT; @@ -780,11 +837,11 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) buffrag->dma = pci_map_single(port->pdev, skb->data, first_seg_len, PCI_DMA_TODEVICE); buffrag->length = first_seg_len; - CMD_DESC_TOTAL_LENGTH_WRT(hwdesc, skb->len); - hwdesc->num_of_buffers = frag_count; - hwdesc->opcode = TX_ETHER_PKT; + netxen_set_cmd_desc_totallength(hwdesc, skb->len); + netxen_set_cmd_desc_num_of_buff(hwdesc, frag_count); + netxen_set_cmd_desc_opcode(hwdesc, TX_ETHER_PKT); - CMD_DESC_PORT_WRT(hwdesc, port->portnum); + netxen_set_cmd_desc_port(hwdesc, port->portnum); hwdesc->buffer1_length = cpu_to_le16(first_seg_len); hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); @@ -843,12 +900,12 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) /* For LSO, we need to copy the MAC/IP/TCP headers into * the descriptor ring */ - if (hw->cmd_desc_head[saved_producer].opcode == TX_TCP_LSO) { + if (netxen_get_cmd_desc_opcode(&hw->cmd_desc_head[saved_producer]) + == TX_TCP_LSO) { int hdr_len, first_hdr_len, more_hdr; hdr_len = hw->cmd_desc_head[saved_producer].total_hdr_length; - if (hdr_len > (sizeof(struct cmd_desc_type0) - NET_IP_ALIGN)) { - first_hdr_len = - sizeof(struct cmd_desc_type0) - NET_IP_ALIGN; + if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) { + first_hdr_len = sizeof(struct cmd_desc_type0) - 2; more_hdr = 1; } else { first_hdr_len = hdr_len; @@ -858,7 +915,7 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) hwdesc = &hw->cmd_desc_head[producer]; /* copy the first 64 bytes */ - memcpy(((void *)hwdesc) + NET_IP_ALIGN, + memcpy(((void *)hwdesc) + 2, (void *)(skb->data), first_hdr_len); producer = get_next_index(producer, max_tx_desc_count); @@ -874,7 +931,7 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) } spin_lock_bh(&adapter->tx_lock); port->stats.txbytes += - CMD_DESC_TOTAL_LENGTH(&hw->cmd_desc_head[saved_producer]); + netxen_get_cmd_desc_totallength(&hw->cmd_desc_head[saved_producer]); /* Code to update the adapter considering how many producer threads are currently working */ if ((--adapter->num_threads) == 0) { @@ -884,20 +941,6 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) NETXEN_CRB_NORMALIZE(adapter, CRB_CMD_PRODUCER_OFFSET)); wmb(); adapter->total_threads = 0; - } else { - u32 crb_producer = 0; - crb_producer = - readl(NETXEN_CRB_NORMALIZE - (adapter, CRB_CMD_PRODUCER_OFFSET)); - if (crb_producer == local_producer) { - crb_producer = get_index_range(crb_producer, - max_tx_desc_count, - no_of_desc); - writel(crb_producer, - NETXEN_CRB_NORMALIZE(adapter, - CRB_CMD_PRODUCER_OFFSET)); - wmb(); - } } port->stats.xmitfinished++; @@ -914,15 +957,20 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) static void netxen_watchdog(unsigned long v) { struct netxen_adapter *adapter = (struct netxen_adapter *)v; - schedule_work(&adapter->watchdog_task); + if (adapter != g_adapter) { + printk("%s: ***BUG*** adapter[%p] != g_adapter[%p]\n", + __FUNCTION__, adapter, g_adapter); + return; + } + + SCHEDULE_WORK(&adapter->watchdog_task); } static void netxen_tx_timeout(struct net_device *netdev) { struct netxen_port *port = (struct netxen_port *)netdev_priv(netdev); - struct netxen_adapter *adapter = port->adapter; - schedule_work(&adapter->tx_timeout_task); + SCHEDULE_WORK(port->adapter->tx_timeout_task + port->portnum); } static void netxen_tx_timeout_task(struct net_device *netdev) @@ -953,6 +1001,11 @@ netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev) if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { int count = 0; u32 mask; + mask = readl(pci_base_offset(adapter, ISR_INT_VECTOR)); + if ((mask & 0x80) == 0) { + /* not our interrupt */ + return ret; + } netxen_nic_disable_int(adapter); /* Window = 0 or 1 */ do { @@ -1012,7 +1065,10 @@ irqreturn_t netxen_intr(int irq, void *data) netdev = port->netdev; /* process our status queue (for all 4 ports) */ - netxen_handle_int(adapter, netdev); + if (netif_running(netdev)) { + netxen_handle_int(adapter, netdev); + break; + } } return IRQ_HANDLED; @@ -1054,11 +1110,11 @@ static int netxen_nic_poll(struct net_device *netdev, int *budget) netdev->quota -= work_done; *budget -= work_done; - if (work_done >= work_to_do - && netxen_nic_rx_has_work(adapter) != 0) + if (work_done >= work_to_do && netxen_nic_rx_has_work(adapter) != 0) done = 0; - netxen_process_cmd_ring((unsigned long)adapter); + if (netxen_process_cmd_ring((unsigned long)adapter) == 0) + done = 0; DPRINTK(INFO, "new work_done: %d work_to_do: %d\n", work_done, work_to_do); @@ -1104,8 +1160,9 @@ netxen_nic_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) if (ifr->ifr_data) { sprintf(dev_name, "%s-%d", NETXEN_NIC_NAME_RSP, port->portnum); - nr_bytes = copy_to_user((char *)ifr->ifr_data, dev_name, - NETXEN_NIC_NAME_LEN); + nr_bytes = + copy_to_user((char __user *)ifr->ifr_data, dev_name, + NETXEN_NIC_NAME_LEN); if (nr_bytes) err = -EIO; @@ -1132,6 +1189,9 @@ static struct pci_driver netxen_driver = { static int __init netxen_init_module(void) { + if ((netxen_workq = create_singlethread_workqueue("netxen")) == 0) + return -ENOMEM; + return pci_module_init(&netxen_driver); } @@ -1142,7 +1202,7 @@ static void __exit netxen_exit_module(void) /* * Wait for some time to allow the dma to drain, if any. */ - mdelay(5); + destroy_workqueue(netxen_workq); pci_unregister_driver(&netxen_driver); } -- cgit v1.2.3 From 6d5aefb8eaa38e44b5b8cf60c812aceafc02d924 Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 5 Dec 2006 19:36:26 +0000 Subject: WorkQueue: Fix up arch-specific work items where possible Fix up arch-specific work items where possible to use the new work_struct and delayed_work structs. Three places that enqueue bits of their stack and then return have been marked with #error as this is not permitted. Signed-Off-By: David Howells --- drivers/net/netxen/netxen_nic_main.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) (limited to 'drivers/net/netxen/netxen_nic_main.c') diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 1cb662d5bd76..df0bb36a1cfb 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -64,7 +64,7 @@ static int netxen_nic_open(struct net_device *netdev); static int netxen_nic_close(struct net_device *netdev); static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *); static void netxen_tx_timeout(struct net_device *netdev); -static void netxen_tx_timeout_task(struct net_device *netdev); +static void netxen_tx_timeout_task(struct work_struct *work); static void netxen_watchdog(unsigned long); static int netxen_handle_int(struct netxen_adapter *, struct net_device *); static int netxen_nic_ioctl(struct net_device *netdev, @@ -274,8 +274,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) adapter->ahw.xg_linkup = 0; adapter->watchdog_timer.function = &netxen_watchdog; adapter->watchdog_timer.data = (unsigned long)adapter; - INIT_WORK(&adapter->watchdog_task, - (void (*)(void *))netxen_watchdog_task, adapter); + INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); adapter->ahw.pdev = pdev; adapter->proc_cmd_buf_counter = 0; pci_read_config_byte(pdev, PCI_REVISION_ID, &adapter->ahw.revision_id); @@ -379,8 +378,8 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) dev_addr); } } - INIT_WORK(&adapter->tx_timeout_task, - (void (*)(void *))netxen_tx_timeout_task, netdev); + adapter->netdev = netdev; + INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); netif_carrier_off(netdev); netif_stop_queue(netdev); @@ -938,18 +937,20 @@ static void netxen_tx_timeout(struct net_device *netdev) schedule_work(&adapter->tx_timeout_task); } -static void netxen_tx_timeout_task(struct net_device *netdev) +static void netxen_tx_timeout_task(struct work_struct *work) { - struct netxen_port *port = (struct netxen_port *)netdev_priv(netdev); + struct netxen_adapter *adapter = + container_of(work, struct netxen_adapter, tx_timeout_task); + struct net_device *netdev = adapter->netdev; unsigned long flags; printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", netxen_nic_driver_name, netdev->name); - spin_lock_irqsave(&port->adapter->lock, flags); + spin_lock_irqsave(&adapter->lock, flags); netxen_nic_close(netdev); netxen_nic_open(netdev); - spin_unlock_irqrestore(&port->adapter->lock, flags); + spin_unlock_irqrestore(&adapter->lock, flags); netdev->trans_start = jiffies; netif_wake_queue(netdev); } -- cgit v1.2.3 From 0bfdcc88df969af8de087d0fdddf8c0efa76b4b0 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Thu, 7 Dec 2006 06:30:07 -0500 Subject: [netdrvr] netxen: workqueue-related build fixes --- drivers/net/netxen/netxen_nic_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net/netxen/netxen_nic_main.c') diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 913e8147114f..575b71b67202 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -969,7 +969,7 @@ static void netxen_tx_timeout(struct net_device *netdev) { struct netxen_port *port = (struct netxen_port *)netdev_priv(netdev); - SCHEDULE_WORK(port->adapter->tx_timeout_task + port->portnum); + SCHEDULE_WORK(&port->adapter->tx_timeout_task); } static void netxen_tx_timeout_task(struct work_struct *work) -- cgit v1.2.3