diff options
Diffstat (limited to 'drivers/net/tokenring/lanstreamer.c')
| -rw-r--r-- | drivers/net/tokenring/lanstreamer.c | 1909 |
1 files changed, 0 insertions, 1909 deletions
diff --git a/drivers/net/tokenring/lanstreamer.c b/drivers/net/tokenring/lanstreamer.c deleted file mode 100644 index 97e4c65c1e2..00000000000 --- a/drivers/net/tokenring/lanstreamer.c +++ /dev/null @@ -1,1909 +0,0 @@ -/* - * lanstreamer.c -- driver for the IBM Auto LANStreamer PCI Adapter - * - * Written By: Mike Sullivan, IBM Corporation - * - * Copyright (C) 1999 IBM Corporation - * - * Linux driver for IBM PCI tokenring cards based on the LanStreamer MPC - * chipset. - * - * This driver is based on the olympic driver for IBM PCI TokenRing cards (Pit/Pit-Phy/Olympic - * chipsets) written by: - * 1999 Peter De Schrijver All Rights Reserved - * 1999 Mike Phillips (phillim@amtrak.com) - * - * Base Driver Skeleton: - * Written 1993-94 by Donald Becker. - * - * Copyright 1993 United States Government as represented by the - * Director, National Security Agency. - * - * 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. - * - * NO WARRANTY - * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR - * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT - * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is - * solely responsible for determining the appropriateness of using and - * distributing the Program and assumes all risks associated with its - * exercise of rights under this Agreement, including but not limited to - * the risks and costs of program errors, damage to or loss of data, - * programs or equipment, and unavailability or interruption of operations. - * - * DISCLAIMER OF LIABILITY - * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR - * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE - * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED - * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES - * - * 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 - * - * - * 12/10/99 - Alpha Release 0.1.0 - * First release to the public - * 03/03/00 - Merged to kernel, indented -kr -i8 -bri0, fixed some missing - * malloc free checks, reviewed code. <alan@redhat.com> - * 03/13/00 - Added spinlocks for smp - * 03/08/01 - Added support for module_init() and module_exit() - * 08/15/01 - Added ioctl() functionality for debugging, changed netif_*_queue - * calls and other incorrectness - Kent Yoder <yoder1@us.ibm.com> - * 11/05/01 - Restructured the interrupt function, added delays, reduced the - * the number of TX descriptors to 1, which together can prevent - * the card from locking up the box - <yoder1@us.ibm.com> - * 09/27/02 - New PCI interface + bug fix. - <yoder1@us.ibm.com> - * 11/13/02 - Removed free_irq calls which could cause a hang, added - * netif_carrier_{on|off} - <yoder1@us.ibm.com> - * - * To Do: - * - * - * If Problems do Occur - * Most problems can be rectified by either closing and opening the interface - * (ifconfig down and up) or rmmod and insmod'ing the driver (a bit difficult - * if compiled into the kernel). - */ - -/* Change STREAMER_DEBUG to 1 to get verbose, and I mean really verbose, messages */ - -#define STREAMER_DEBUG 0 -#define STREAMER_DEBUG_PACKETS 0 - -/* Change STREAMER_NETWORK_MONITOR to receive mac frames through the arb channel. - * Will also create a /proc/net/streamer_tr entry if proc_fs is compiled into the - * kernel. - * Intended to be used to create a ring-error reporting network module - * i.e. it will give you the source address of beaconers on the ring - */ - -#define STREAMER_NETWORK_MONITOR 0 - -/* #define CONFIG_PROC_FS */ - -/* - * Allow or disallow ioctl's for debugging - */ - -#define STREAMER_IOCTL 0 - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/timer.h> -#include <linux/in.h> -#include <linux/ioport.h> -#include <linux/string.h> -#include <linux/proc_fs.h> -#include <linux/ptrace.h> -#include <linux/skbuff.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/trdevice.h> -#include <linux/stddef.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <linux/spinlock.h> -#include <linux/bitops.h> -#include <linux/jiffies.h> -#include <linux/slab.h> - -#include <net/net_namespace.h> -#include <net/checksum.h> - -#include <asm/io.h> - -#include "lanstreamer.h" - -#if (BITS_PER_LONG == 64) -#error broken on 64-bit: stores pointer to rx_ring->buffer in 32-bit int -#endif - - -/* I've got to put some intelligence into the version number so that Peter and I know - * which version of the code somebody has got. - * Version Number = a.b.c.d where a.b.c is the level of code and d is the latest author. - * So 0.0.1.pds = Peter, 0.0.1.mlp = Mike - * - * Official releases will only have an a.b.c version number format. - */ - -static char version[] = "LanStreamer.c v0.4.0 03/08/01 - Mike Sullivan\n" - " v0.5.3 11/13/02 - Kent Yoder"; - -static DEFINE_PCI_DEVICE_TABLE(streamer_pci_tbl) = { - { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_TR, PCI_ANY_ID, PCI_ANY_ID,}, - {} /* terminating entry */ -}; -MODULE_DEVICE_TABLE(pci,streamer_pci_tbl); - - -static char *open_maj_error[] = { - "No error", "Lobe Media Test", "Physical Insertion", - "Address Verification", "Neighbor Notification (Ring Poll)", - "Request Parameters", "FDX Registration Request", - "FDX Lobe Media Test", "FDX Duplicate Address Check", - "Unknown stage" -}; - -static char *open_min_error[] = { - "No error", "Function Failure", "Signal Lost", "Wire Fault", - "Ring Speed Mismatch", "Timeout", "Ring Failure", "Ring Beaconing", - "Duplicate Node Address", "Request Parameters", "Remove Received", - "Reserved", "Reserved", "No Monitor Detected for RPL", - "Monitor Contention failer for RPL", "FDX Protocol Error" -}; - -/* Module parameters */ - -/* Ring Speed 0,4,16 - * 0 = Autosense - * 4,16 = Selected speed only, no autosense - * This allows the card to be the first on the ring - * and become the active monitor. - * - * WARNING: Some hubs will allow you to insert - * at the wrong speed - */ - -static int ringspeed[STREAMER_MAX_ADAPTERS] = { 0, }; - -module_param_array(ringspeed, int, NULL, 0); - -/* Packet buffer size */ - -static int pkt_buf_sz[STREAMER_MAX_ADAPTERS] = { 0, }; - -module_param_array(pkt_buf_sz, int, NULL, 0); - -/* Message Level */ - -static int message_level[STREAMER_MAX_ADAPTERS] = { 1, }; - -module_param_array(message_level, int, NULL, 0); - -#if STREAMER_IOCTL -static int streamer_ioctl(struct net_device *, struct ifreq *, int); -#endif - -static int streamer_reset(struct net_device *dev); -static int streamer_open(struct net_device *dev); -static netdev_tx_t streamer_xmit(struct sk_buff *skb, - struct net_device *dev); -static int streamer_close(struct net_device *dev); -static void streamer_set_rx_mode(struct net_device *dev); -static irqreturn_t streamer_interrupt(int irq, void *dev_id); -static int streamer_set_mac_address(struct net_device *dev, void *addr); -static void streamer_arb_cmd(struct net_device *dev); -static int streamer_change_mtu(struct net_device *dev, int mtu); -static void streamer_srb_bh(struct net_device *dev); -static void streamer_asb_bh(struct net_device *dev); -#if STREAMER_NETWORK_MONITOR -#ifdef CONFIG_PROC_FS -static int streamer_proc_info(char *buffer, char **start, off_t offset, - int length, int *eof, void *data); -static int sprintf_info(char *buffer, struct net_device *dev); -struct streamer_private *dev_streamer=NULL; -#endif -#endif - -static const struct net_device_ops streamer_netdev_ops = { - .ndo_open = streamer_open, - .ndo_stop = streamer_close, - .ndo_start_xmit = streamer_xmit, - .ndo_change_mtu = streamer_change_mtu, -#if STREAMER_IOCTL - .ndo_do_ioctl = streamer_ioctl, -#endif - .ndo_set_rx_mode = streamer_set_rx_mode, - .ndo_set_mac_address = streamer_set_mac_address, -}; - -static int __devinit streamer_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - struct net_device *dev; - struct streamer_private *streamer_priv; - unsigned long pio_start, pio_end, pio_flags, pio_len; - unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; - int rc = 0; - static int card_no=-1; - u16 pcr; - -#if STREAMER_DEBUG - printk("lanstreamer::streamer_init_one, entry pdev %p\n",pdev); -#endif - - card_no++; - dev = alloc_trdev(sizeof(*streamer_priv)); - if (dev==NULL) { - printk(KERN_ERR "lanstreamer: out of memory.\n"); - return -ENOMEM; - } - - streamer_priv = netdev_priv(dev); - -#if STREAMER_NETWORK_MONITOR -#ifdef CONFIG_PROC_FS - if (!dev_streamer) - create_proc_read_entry("streamer_tr", 0, init_net.proc_net, - streamer_proc_info, NULL); - streamer_priv->next = dev_streamer; - dev_streamer = streamer_priv; -#endif -#endif - - rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); - if (rc) { - printk(KERN_ERR "%s: No suitable PCI mapping available.\n", - dev->name); - rc = -ENODEV; - goto err_out; - } - - rc = pci_enable_device(pdev); - if (rc) { - printk(KERN_ERR "lanstreamer: unable to enable pci device\n"); - rc=-EIO; - goto err_out; - } - - pci_set_master(pdev); - - rc = pci_set_mwi(pdev); - if (rc) { - printk(KERN_ERR "lanstreamer: unable to enable MWI on pci device\n"); - goto err_out_disable; - } - - pio_start = pci_resource_start(pdev, 0); - pio_end = pci_resource_end(pdev, 0); - pio_flags = pci_resource_flags(pdev, 0); - pio_len = pci_resource_len(pdev, 0); - - mmio_start = pci_resource_start(pdev, 1); - mmio_end = pci_resource_end(pdev, 1); - mmio_flags = pci_resource_flags(pdev, 1); - mmio_len = pci_resource_len(pdev, 1); - -#if STREAMER_DEBUG - printk("lanstreamer: pio_start %x pio_end %x pio_len %x pio_flags %x\n", - pio_start, pio_end, pio_len, pio_flags); - printk("lanstreamer: mmio_start %x mmio_end %x mmio_len %x mmio_flags %x\n", - mmio_start, mmio_end, mmio_flags, mmio_len); -#endif - - if (!request_region(pio_start, pio_len, "lanstreamer")) { - printk(KERN_ERR "lanstreamer: unable to get pci io addr %lx\n", - pio_start); - rc= -EBUSY; - goto err_out_mwi; - } - - if (!request_mem_region(mmio_start, mmio_len, "lanstreamer")) { - printk(KERN_ERR "lanstreamer: unable to get pci mmio addr %lx\n", - mmio_start); - rc= -EBUSY; - goto err_out_free_pio; - } - - streamer_priv->streamer_mmio=ioremap(mmio_start, mmio_len); - if (streamer_priv->streamer_mmio == NULL) { - printk(KERN_ERR "lanstreamer: unable to remap MMIO %lx\n", - mmio_start); - rc= -EIO; - goto err_out_free_mmio; - } - - init_waitqueue_head(&streamer_priv->srb_wait); - init_waitqueue_head(&streamer_priv->trb_wait); - - dev->netdev_ops = &streamer_netdev_ops; - dev->irq = pdev->irq; - dev->base_addr=pio_start; - SET_NETDEV_DEV(dev, &pdev->dev); - - streamer_priv->streamer_card_name = (char *)pdev->resource[0].name; - streamer_priv->pci_dev = pdev; - - if ((pkt_buf_sz[card_no] < 100) || (pkt_buf_sz[card_no] > 18000)) - streamer_priv->pkt_buf_sz = PKT_BUF_SZ; - else - streamer_priv->pkt_buf_sz = pkt_buf_sz[card_no]; - - streamer_priv->streamer_ring_speed = ringspeed[card_no]; - streamer_priv->streamer_message_level = message_level[card_no]; - - pci_set_drvdata(pdev, dev); - - spin_lock_init(&streamer_priv->streamer_lock); - - pci_read_config_word (pdev, PCI_COMMAND, &pcr); - pcr |= PCI_COMMAND_SERR; - pci_write_config_word (pdev, PCI_COMMAND, pcr); - - printk("%s\n", version); - printk("%s: %s. I/O at %hx, MMIO at %p, using irq %d\n",dev->name, - streamer_priv->streamer_card_name, - (unsigned int) dev->base_addr, - streamer_priv->streamer_mmio, - dev->irq); - - if (streamer_reset(dev)) - goto err_out_unmap; - - rc = register_netdev(dev); - if (rc) - goto err_out_unmap; - return 0; - -err_out_unmap: - iounmap(streamer_priv->streamer_mmio); -err_out_free_mmio: - release_mem_region(mmio_start, mmio_len); -err_out_free_pio: - release_region(pio_start, pio_len); -err_out_mwi: - pci_clear_mwi(pdev); -err_out_disable: - pci_disable_device(pdev); -err_out: - free_netdev(dev); -#if STREAMER_DEBUG - printk("lanstreamer: Exit error %x\n",rc); -#endif - return rc; -} - -static void __devexit streamer_remove_one(struct pci_dev *pdev) -{ - struct net_device *dev=pci_get_drvdata(pdev); - struct streamer_private *streamer_priv; - -#if STREAMER_DEBUG - printk("lanstreamer::streamer_remove_one entry pdev %p\n",pdev); -#endif - - if (dev == NULL) { - printk(KERN_ERR "lanstreamer::streamer_remove_one, ERROR dev is NULL\n"); - return; - } - - streamer_priv=netdev_priv(dev); - if (streamer_priv == NULL) { - printk(KERN_ERR "lanstreamer::streamer_remove_one, ERROR dev->priv is NULL\n"); - return; - } - -#if STREAMER_NETWORK_MONITOR -#ifdef CONFIG_PROC_FS - { - struct streamer_private **p, **next; - - for (p = &dev_streamer; *p; p = next) { - next = &(*p)->next; - if (*p == streamer_priv) { - *p = *next; - break; - } - } - if (!dev_streamer) - remove_proc_entry("streamer_tr", init_net.proc_net); - } -#endif -#endif - - unregister_netdev(dev); - iounmap(streamer_priv->streamer_mmio); - release_mem_region(pci_resource_start(pdev, 1), pci_resource_len(pdev,1)); - release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev,0)); - pci_clear_mwi(pdev); - pci_disable_device(pdev); - free_netdev(dev); - pci_set_drvdata(pdev, NULL); -} - - -static int streamer_reset(struct net_device *dev) -{ - struct streamer_private *streamer_priv; - __u8 __iomem *streamer_mmio; - unsigned long t; - unsigned int uaa_addr; - struct sk_buff *skb = NULL; - __u16 misr; - - streamer_priv = netdev_priv(dev); - streamer_mmio = streamer_priv->streamer_mmio; - - writew(readw(streamer_mmio + BCTL) | BCTL_SOFTRESET, streamer_mmio + BCTL); - t = jiffies; - /* Hold soft reset bit for a while */ - ssleep(1); - - writew(readw(streamer_mmio + BCTL) & ~BCTL_SOFTRESET, - streamer_mmio + BCTL); - -#if STREAMER_DEBUG - printk("BCTL: %x\n", readw(streamer_mmio + BCTL)); - printk("GPR: %x\n", readw(streamer_mmio + GPR)); - printk("SISRMASK: %x\n", readw(streamer_mmio + SISR_MASK)); -#endif - writew(readw(streamer_mmio + BCTL) | (BCTL_RX_FIFO_8 | BCTL_TX_FIFO_8), streamer_mmio + BCTL ); - - if (streamer_priv->streamer_ring_speed == 0) { /* Autosense */ - writew(readw(streamer_mmio + GPR) | GPR_AUTOSENSE, - streamer_mmio + GPR); - if (streamer_priv->streamer_message_level) - printk(KERN_INFO "%s: Ringspeed autosense mode on\n", - dev->name); - } else if (streamer_priv->streamer_ring_speed == 16) { - if (streamer_priv->streamer_message_level) - printk(KERN_INFO "%s: Trying to open at 16 Mbps as requested\n", - dev->name); - writew(GPR_16MBPS, streamer_mmio + GPR); - } else if (streamer_priv->streamer_ring_speed == 4) { - if (streamer_priv->streamer_message_level) - printk(KERN_INFO "%s: Trying to open at 4 Mbps as requested\n", - dev->name); - writew(0, streamer_mmio + GPR); - } - - skb = dev_alloc_skb(streamer_priv->pkt_buf_sz); - if (!skb) { - printk(KERN_INFO "%s: skb allocation for diagnostics failed...proceeding\n", - dev->name); - } else { - struct streamer_rx_desc *rx_ring; - u8 *data; - - rx_ring=(struct streamer_rx_desc *)skb->data; - data=((u8 *)skb->data)+sizeof(struct streamer_rx_desc); - rx_ring->forward=0; - rx_ring->status=0; - rx_ring->buffer=cpu_to_le32(pci_map_single(streamer_priv->pci_dev, data, - 512, PCI_DMA_FROMDEVICE)); - rx_ring->framelen_buflen=512; - writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, rx_ring, 512, PCI_DMA_FROMDEVICE)), - streamer_mmio+RXBDA); - } - -#if STREAMER_DEBUG - printk("GPR = %x\n", readw(streamer_mmio + GPR)); -#endif - /* start solo init */ - writew(SISR_MI, streamer_mmio + SISR_MASK_SUM); - - while (!((readw(streamer_mmio + SISR)) & SISR_SRB_REPLY)) { - msleep_interruptible(100); - if (time_after(jiffies, t + 40 * HZ)) { - printk(KERN_ERR - "IBM PCI tokenring card not responding\n"); - release_region(dev->base_addr, STREAMER_IO_SPACE); - if (skb) - dev_kfree_skb(skb); - return -1; - } - } - writew(~SISR_SRB_REPLY, streamer_mmio + SISR_RUM); - misr = readw(streamer_mmio + MISR_RUM); - writew(~misr, streamer_mmio + MISR_RUM); - - if (skb) - dev_kfree_skb(skb); /* release skb used for diagnostics */ - -#if STREAMER_DEBUG - printk("LAPWWO: %x, LAPA: %x LAPE: %x\n", - readw(streamer_mmio + LAPWWO), readw(streamer_mmio + LAPA), - readw(streamer_mmio + LAPE)); -#endif - -#if STREAMER_DEBUG - { - int i; - writew(readw(streamer_mmio + LAPWWO), - streamer_mmio + LAPA); - printk("initialization response srb dump: "); - for (i = 0; i < 10; i++) - printk("%x:", - ntohs(readw(streamer_mmio + LAPDINC))); - printk("\n"); - } -#endif - - writew(readw(streamer_mmio + LAPWWO) + 6, streamer_mmio + LAPA); - if (readw(streamer_mmio + LAPD)) { - printk(KERN_INFO "tokenring card initialization failed. errorcode : %x\n", - ntohs(readw(streamer_mmio + LAPD))); - release_region(dev->base_addr, STREAMER_IO_SPACE); - return -1; - } - - writew(readw(streamer_mmio + LAPWWO) + 8, streamer_mmio + LAPA); - uaa_addr = ntohs(readw(streamer_mmio + LAPDINC)); - readw(streamer_mmio + LAPDINC); /* skip over Level.Addr field */ - streamer_priv->streamer_addr_table_addr = ntohs(readw(streamer_mmio + LAPDINC)); - streamer_priv->streamer_parms_addr = ntohs(readw(streamer_mmio + LAPDINC)); - -#if STREAMER_DEBUG - printk("UAA resides at %x\n", uaa_addr); -#endif - - /* setup uaa area for access with LAPD */ - { - int i; - __u16 addr; - writew(uaa_addr, streamer_mmio + LAPA); - for (i = 0; i < 6; i += 2) { - addr=ntohs(readw(streamer_mmio+LAPDINC)); - dev->dev_addr[i]= (addr >> 8) & 0xff; - dev->dev_addr[i+1]= addr & 0xff; - } -#if STREAMER_DEBUG - printk("Adapter address: %pM\n", dev->dev_addr); -#endif - } - return 0; -} - -static int streamer_open(struct net_device *dev) -{ - struct streamer_private *streamer_priv = netdev_priv(dev); - __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; - unsigned long flags; - char open_error[255]; - int i, open_finished = 1; - __u16 srb_word; - __u16 srb_open; - int rc; - - if (readw(streamer_mmio+BMCTL_SUM) & BMCTL_RX_ENABLED) { - rc=streamer_reset(dev); - } - - if (request_irq(dev->irq, streamer_interrupt, IRQF_SHARED, "lanstreamer", dev)) { - return -EAGAIN; - } -#if STREAMER_DEBUG - printk("BMCTL: %x\n", readw(streamer_mmio + BMCTL_SUM)); - printk("pending ints: %x\n", readw(streamer_mmio + SISR)); -#endif - - writew(SISR_MI | SISR_SRB_REPLY, streamer_mmio + SISR_MASK); /* more ints later, doesn't stop arb cmd interrupt */ - writew(LISR_LIE, streamer_mmio + LISR); /* more ints later */ - - /* adapter is closed, so SRB is pointed to by LAPWWO */ - writew(readw(streamer_mmio + LAPWWO), streamer_mmio + LAPA); - -#if STREAMER_DEBUG - printk("LAPWWO: %x, LAPA: %x\n", readw(streamer_mmio + LAPWWO), - readw(streamer_mmio + LAPA)); - printk("LAPE: %x\n", readw(streamer_mmio + LAPE)); - printk("SISR Mask = %04x\n", readw(streamer_mmio + SISR_MASK)); -#endif - do { - for (i = 0; i < SRB_COMMAND_SIZE; i += 2) { - writew(0, streamer_mmio + LAPDINC); - } - - writew(readw(streamer_mmio+LAPWWO),streamer_mmio+LAPA); - writew(htons(SRB_OPEN_ADAPTER<<8),streamer_mmio+LAPDINC) ; /* open */ - writew(htons(STREAMER_CLEAR_RET_CODE<<8),streamer_mmio+LAPDINC); - writew(STREAMER_CLEAR_RET_CODE, streamer_mmio + LAPDINC); - - writew(readw(streamer_mmio + LAPWWO) + 8, streamer_mmio + LAPA); -#if STREAMER_NETWORK_MONITOR - /* If Network Monitor, instruct card to copy MAC frames through the ARB */ - writew(htons(OPEN_ADAPTER_ENABLE_FDX | OPEN_ADAPTER_PASS_ADC_MAC | OPEN_ADAPTER_PASS_ATT_MAC | OPEN_ADAPTER_PASS_BEACON), streamer_mmio + LAPDINC); /* offset 8 word contains open options */ -#else - writew(htons(OPEN_ADAPTER_ENABLE_FDX), streamer_mmio + LAPDINC); /* Offset 8 word contains Open.Options */ -#endif - - if (streamer_priv->streamer_laa[0]) { - writew(readw(streamer_mmio + LAPWWO) + 12, streamer_mmio + LAPA); - writew(htons((streamer_priv->streamer_laa[0] << 8) | - streamer_priv->streamer_laa[1]),streamer_mmio+LAPDINC); - writew(htons((streamer_priv->streamer_laa[2] << 8) | - streamer_priv->streamer_laa[3]),streamer_mmio+LAPDINC); - writew(htons((streamer_priv->streamer_laa[4] << 8) | - streamer_priv->streamer_laa[5]),streamer_mmio+LAPDINC); - memcpy(dev->dev_addr, streamer_priv->streamer_laa, dev->addr_len); - } - - /* save off srb open offset */ - srb_open = readw(streamer_mmio + LAPWWO); -#if STREAMER_DEBUG - writew(readw(streamer_mmio + LAPWWO), - streamer_mmio + LAPA); - printk("srb open request:\n"); - for (i = 0; i < 16; i++) { - printk("%x:", ntohs(readw(streamer_mmio + LAPDINC))); - } - printk("\n"); -#endif - spin_lock_irqsave(&streamer_priv->streamer_lock, flags); - streamer_priv->srb_queued = 1; - - /* signal solo that SRB command has been issued */ - writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM); - spin_unlock_irqrestore(&streamer_priv->streamer_lock, flags); - - while (streamer_priv->srb_queued) { - interruptible_sleep_on_timeout(&streamer_priv->srb_wait, 5 * HZ); - if (signal_pending(current)) { - printk(KERN_WARNING "%s: SRB timed out.\n", dev->name); - printk(KERN_WARNING "SISR=%x MISR=%x, LISR=%x\n", - readw(streamer_mmio + SISR), - readw(streamer_mmio + MISR_RUM), - readw(streamer_mmio + LISR)); - streamer_priv->srb_queued = 0; - break; - } - } - -#if STREAMER_DEBUG - printk("SISR_MASK: %x\n", readw(streamer_mmio + SISR_MASK)); - printk("srb open response:\n"); - writew(srb_open, streamer_mmio + LAPA); - for (i = 0; i < 10; i++) { - printk("%x:", - ntohs(readw(streamer_mmio + LAPDINC))); - } -#endif - - /* If we get the same return response as we set, the interrupt wasn't raised and the open - * timed out. - */ - writew(srb_open + 2, streamer_mmio + LAPA); - srb_word = ntohs(readw(streamer_mmio + LAPD)) >> 8; - if (srb_word == STREAMER_CLEAR_RET_CODE) { - printk(KERN_WARNING "%s: Adapter Open time out or error.\n", - dev->name); - return -EIO; - } - - if (srb_word != 0) { - if (srb_word == 0x07) { - if (!streamer_priv->streamer_ring_speed && open_finished) { /* Autosense , first time around */ - printk(KERN_WARNING "%s: Retrying at different ring speed\n", - dev->name); - open_finished = 0; - } else { - __u16 error_code; - - writew(srb_open + 6, streamer_mmio + LAPA); - error_code = ntohs(readw(streamer_mmio + LAPD)); - strcpy(open_error, open_maj_error[(error_code & 0xf0) >> 4]); - strcat(open_error, " - "); - strcat(open_error, open_min_error[(error_code & 0x0f)]); - - if (!streamer_priv->streamer_ring_speed && - ((error_code & 0x0f) == 0x0d)) - { - printk(KERN_WARNING "%s: Tried to autosense ring speed with no monitors present\n", dev->name); - printk(KERN_WARNING "%s: Please try again with a specified ring speed\n", dev->name); - free_irq(dev->irq, dev); - return -EIO; - } - - printk(KERN_WARNING "%s: %s\n", - dev->name, open_error); - free_irq(dev->irq, dev); - return -EIO; - - } /* if autosense && open_finished */ - } else { - printk(KERN_WARNING "%s: Bad OPEN response: %x\n", - dev->name, srb_word); - free_irq(dev->irq, dev); - return -EIO; - } - } else - open_finished = 1; - } while (!(open_finished)); /* Will only loop if ring speed mismatch re-open attempted && autosense is on */ - - writew(srb_open + 18, streamer_mmio + LAPA); - srb_word=ntohs(readw(streamer_mmio+LAPD)) >> 8; - if (srb_word & (1 << 3)) - if (streamer_priv->streamer_message_level) - printk(KERN_INFO "%s: Opened in FDX Mode\n", dev->name); - - if (srb_word & 1) - streamer_priv->streamer_ring_speed = 16; - else - streamer_priv->streamer_ring_speed = 4; - - if (streamer_priv->streamer_message_level) - printk(KERN_INFO "%s: Opened in %d Mbps mode\n", - dev->name, - streamer_priv->streamer_ring_speed); - - writew(srb_open + 8, streamer_mmio + LAPA); - streamer_priv->asb = ntohs(readw(streamer_mmio + LAPDINC)); - streamer_priv->srb = ntohs(readw(streamer_mmio + LAPDINC)); - streamer_priv->arb = ntohs(readw(streamer_mmio + LAPDINC)); - readw(streamer_mmio + LAPDINC); /* offset 14 word is rsvd */ - streamer_priv->trb = ntohs(readw(streamer_mmio + LAPDINC)); - - streamer_priv->streamer_receive_options = 0x00; - streamer_priv->streamer_copy_all_options = 0; - - /* setup rx ring */ - /* enable rx channel */ - writew(~BMCTL_RX_DIS, streamer_mmio + BMCTL_RUM); - - /* setup rx descriptors */ - streamer_priv->streamer_rx_ring= - kmalloc( sizeof(struct streamer_rx_desc)* - STREAMER_RX_RING_SIZE,GFP_KERNEL); - if (!streamer_priv->streamer_rx_ring) { - printk(KERN_WARNING "%s ALLOC of streamer rx ring FAILED!!\n",dev->name); - return -EIO; - } - - for (i = 0; i < STREAMER_RX_RING_SIZE; i++) { - struct sk_buff *skb; - - skb = dev_alloc_skb(streamer_priv->pkt_buf_sz); - if (skb == NULL) - break; - - skb->dev = dev; - - streamer_priv->streamer_rx_ring[i].forward = - cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[i + 1], - sizeof(struct streamer_rx_desc), PCI_DMA_FROMDEVICE)); - streamer_priv->streamer_rx_ring[i].status = 0; - streamer_priv->streamer_rx_ring[i].buffer = - cpu_to_le32(pci_map_single(streamer_priv->pci_dev, skb->data, - streamer_priv->pkt_buf_sz, PCI_DMA_FROMDEVICE)); - streamer_priv->streamer_rx_ring[i].framelen_buflen = streamer_priv->pkt_buf_sz; - streamer_priv->rx_ring_skb[i] = skb; - } - streamer_priv->streamer_rx_ring[STREAMER_RX_RING_SIZE - 1].forward = - cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[0], - sizeof(struct streamer_rx_desc), PCI_DMA_FROMDEVICE)); - - if (i == 0) { - printk(KERN_WARNING "%s: Not enough memory to allocate rx buffers. Adapter disabled\n", dev->name); - free_irq(dev->irq, dev); - return -EIO; - } - - streamer_priv->rx_ring_last_received = STREAMER_RX_RING_SIZE - 1; /* last processed rx status */ - - writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[0], - sizeof(struct streamer_rx_desc), PCI_DMA_TODEVICE)), - streamer_mmio + RXBDA); - writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[STREAMER_RX_RING_SIZE - 1], - sizeof(struct streamer_rx_desc), PCI_DMA_TODEVICE)), - streamer_mmio + RXLBDA); - - /* set bus master interrupt event mask */ - writew(MISR_RX_NOBUF | MISR_RX_EOF, streamer_mmio + MISR_MASK); - - - /* setup tx ring */ - streamer_priv->streamer_tx_ring=kmalloc(sizeof(struct streamer_tx_desc)* - STREAMER_TX_RING_SIZE,GFP_KERNEL); - if (!streamer_priv->streamer_tx_ring) { - printk(KERN_WARNING "%s ALLOC of streamer_tx_ring FAILED\n",dev->name); - return -EIO; - } - - writew(~BMCTL_TX2_DIS, streamer_mmio + BMCTL_RUM); /* Enables TX channel 2 */ - for (i = 0; i < STREAMER_TX_RING_SIZE; i++) { - streamer_priv->streamer_tx_ring[i].forward = cpu_to_le32(pci_map_single(streamer_priv->pci_dev, - &streamer_priv->streamer_tx_ring[i + 1], - sizeof(struct streamer_tx_desc), - PCI_DMA_TODEVICE)); - streamer_priv->streamer_tx_ring[i].status = 0; - streamer_priv->streamer_tx_ring[i].bufcnt_framelen = 0; - streamer_priv->streamer_tx_ring[i].buffer = 0; - streamer_priv->streamer_tx_ring[i].buflen = 0; - streamer_priv->streamer_tx_ring[i].rsvd1 = 0; - streamer_priv->streamer_tx_ring[i].rsvd2 = 0; - streamer_priv->streamer_tx_ring[i].rsvd3 = 0; - } - streamer_priv->streamer_tx_ring[STREAMER_TX_RING_SIZE - 1].forward = - cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_tx_ring[0], - sizeof(struct streamer_tx_desc), PCI_DMA_TODEVICE)); - - streamer_priv->free_tx_ring_entries = STREAMER_TX_RING_SIZE; - streamer_priv->tx_ring_free = 0; /* next entry in tx ring to use */ - streamer_priv->tx_ring_last_status = STREAMER_TX_RING_SIZE - 1; - - /* set Busmaster interrupt event mask (handle receives on interrupt only */ - writew(MISR_TX2_EOF | MISR_RX_NOBUF | MISR_RX_EOF, streamer_mmio + MISR_MASK); - /* set system event interrupt mask */ - writew(SISR_ADAPTER_CHECK | SISR_ARB_CMD | SISR_TRB_REPLY | SISR_ASB_FREE, streamer_mmio + SISR_MASK_SUM); - -#if STREAMER_DEBUG - printk("BMCTL: %x\n", readw(streamer_mmio + BMCTL_SUM)); - printk("SISR MASK: %x\n", readw(streamer_mmio + SISR_MASK)); -#endif - -#if STREAMER_NETWORK_MONITOR - - writew(streamer_priv->streamer_addr_table_addr, streamer_mmio + LAPA); - printk("%s: Node Address: %04x:%04x:%04x\n", dev->name, - ntohs(readw(streamer_mmio + LAPDINC)), - ntohs(readw(streamer_mmio + LAPDINC)), - ntohs(readw(streamer_mmio + LAPDINC))); - readw(streamer_mmio + LAPDINC); - readw(streamer_mmio + LAPDINC); - printk("%s: Functional Address: %04x:%04x\n", dev->name, - ntohs(readw(streamer_mmio + LAPDINC)), - ntohs(readw(streamer_mmio + LAPDINC))); - - writew(streamer_priv->streamer_parms_addr + 4, - streamer_mmio + LAPA); - printk("%s: NAUN Address: %04x:%04x:%04x\n", dev->name, - ntohs(readw(streamer_mmio + LAPDINC)), - ntohs(readw(streamer_mmio + LAPDINC)), - ntohs(readw(streamer_mmio + LAPDINC))); -#endif - - netif_start_queue(dev); - netif_carrier_on(dev); - return 0; -} - -/* - * When we enter the rx routine we do not know how many frames have been - * queued on the rx channel. Therefore we start at the next rx status - * position and travel around the receive ring until we have completed - * all the frames. - * - * This means that we may process the frame before we receive the end - * of frame interrupt. This is why we always test the status instead - * of blindly processing the next frame. - * - */ -static void streamer_rx(struct net_device *dev) -{ - struct streamer_private *streamer_priv = - netdev_priv(dev); - __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; - struct streamer_rx_desc *rx_desc; - int rx_ring_last_received, length, frame_length, buffer_cnt = 0; - struct sk_buff *skb, *skb2; - - /* setup the next rx descriptor to be received */ - rx_desc = &streamer_priv->streamer_rx_ring[(streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1)]; - rx_ring_last_received = streamer_priv->rx_ring_last_received; - - while (rx_desc->status & 0x01000000) { /* While processed descriptors are available */ - if (rx_ring_last_received != streamer_priv->rx_ring_last_received) - { - printk(KERN_WARNING "RX Error 1 rx_ring_last_received not the same %x %x\n", - rx_ring_last_received, streamer_priv->rx_ring_last_received); - } - streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1); - rx_ring_last_received = streamer_priv->rx_ring_last_received; - - length = rx_desc->framelen_buflen & 0xffff; /* buffer length */ - frame_length = (rx_desc->framelen_buflen >> 16) & 0xffff; - - if (rx_desc->status & 0x7E830000) { /* errors */ - if (streamer_priv->streamer_message_level) { - printk(KERN_WARNING "%s: Rx Error %x\n", - dev->name, rx_desc->status); - } - } else { /* received without errors */ - if (rx_desc->status & 0x80000000) { /* frame complete */ - buffer_cnt = 1; - skb = dev_alloc_skb(streamer_priv->pkt_buf_sz); - } else { - skb = dev_alloc_skb(frame_length); - } - - if (skb == NULL) - { - printk(KERN_WARNING "%s: Not enough memory to copy packet to upper layers.\n", dev->name); - dev->stats.rx_dropped++; - } else { /* we allocated an skb OK */ - if (buffer_cnt == 1) { - /* release the DMA mapping */ - pci_unmap_single(streamer_priv->pci_dev, - le32_to_cpu(streamer_priv->streamer_rx_ring[rx_ring_last_received].buffer), - streamer_priv->pkt_buf_sz, - PCI_DMA_FROMDEVICE); - skb2 = streamer_priv->rx_ring_skb[rx_ring_last_received]; -#if STREAMER_DEBUG_PACKETS - { - int i; - printk("streamer_rx packet print: skb->data2 %p skb->head %p\n", skb2->data, skb2->head); - for (i = 0; i < frame_length; i++) - { - printk("%x:", skb2->data[i]); - if (((i + 1) % 16) == 0) - printk("\n"); - } - printk("\n"); - } -#endif - skb_put(skb2, length); - skb2->protocol = tr_type_trans(skb2, dev); - /* recycle this descriptor */ - streamer_priv->streamer_rx_ring[rx_ring_last_received].status = 0; - streamer_priv->streamer_rx_ring[rx_ring_last_received].framelen_buflen = streamer_priv->pkt_buf_sz; - streamer_priv->streamer_rx_ring[rx_ring_last_received].buffer = - cpu_to_le32(pci_map_single(streamer_priv->pci_dev, skb->data, streamer_priv->pkt_buf_sz, - PCI_DMA_FROMDEVICE)); - streamer_priv->rx_ring_skb[rx_ring_last_received] = skb; - /* place recycled descriptor back on the adapter */ - writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, - &streamer_priv->streamer_rx_ring[rx_ring_last_received], - sizeof(struct streamer_rx_desc), PCI_DMA_FROMDEVICE)), - streamer_mmio + RXLBDA); - /* pass the received skb up to the protocol */ - netif_rx(skb2); - } else { - do { /* Walk the buffers */ - pci_unmap_single(streamer_priv->pci_dev, le32_to_cpu(rx_desc->buffer), length, PCI_DMA_FROMDEVICE), - memcpy(skb_put(skb, length), (void *)rx_desc->buffer, length); /* copy this fragment */ - streamer_priv->streamer_rx_ring[rx_ring_last_received].status = 0; - streamer_priv->streamer_rx_ring[rx_ring_last_received].framelen_buflen = streamer_priv->pkt_buf_sz; - - /* give descriptor back to the adapter */ - writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, - &streamer_priv->streamer_rx_ring[rx_ring_last_received], - length, PCI_DMA_FROMDEVICE)), - streamer_mmio + RXLBDA); - - if (rx_desc->status & 0x80000000) - break; /* this descriptor completes the frame */ - - /* else get the next pending descriptor */ - if (rx_ring_last_received!= streamer_priv->rx_ring_last_received) - { - printk("RX Error rx_ring_last_received not the same %x %x\n", - rx_ring_last_received, - streamer_priv->rx_ring_last_received); - } - rx_desc = &streamer_priv->streamer_rx_ring[(streamer_priv->rx_ring_last_received+1) & (STREAMER_RX_RING_SIZE-1)]; - - length = rx_desc->framelen_buflen & 0xffff; /* buffer length */ - streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received+1) & (STREAMER_RX_RING_SIZE - 1); - rx_ring_last_received = streamer_priv->rx_ring_last_received; - } while (1); - - skb->protocol = tr_type_trans(skb, dev); - /* send up to the protocol */ - netif_rx(skb); |