diff options
Diffstat (limited to 'drivers/net/tokenring/lanstreamer.c')
| -rw-r--r-- | drivers/net/tokenring/lanstreamer.c | 2011 |
1 files changed, 2011 insertions, 0 deletions
diff --git a/drivers/net/tokenring/lanstreamer.c b/drivers/net/tokenring/lanstreamer.c new file mode 100644 index 000000000000..99e0b03b69a8 --- /dev/null +++ b/drivers/net/tokenring/lanstreamer.c @@ -0,0 +1,2011 @@ +/* + * 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/config.h> +#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/spinlock.h> +#include <linux/version.h> +#include <linux/bitops.h> + +#include <net/checksum.h> + +#include <asm/io.h> +#include <asm/system.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 struct pci_device_id 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 paramters */ + +/* 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 int 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, + struct pt_regs *regs); +static struct net_device_stats *streamer_get_stats(struct net_device *dev); +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 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; + } + + SET_MODULE_OWNER(dev); + streamer_priv = dev->priv; + +#if STREAMER_NETWORK_MONITOR +#ifdef CONFIG_PROC_FS + if (!dev_streamer) + create_proc_read_entry("net/streamer_tr", 0, 0, + streamer_proc_info, NULL); + streamer_priv->next = dev_streamer; + dev_streamer = streamer_priv; +#endif +#endif + + rc = pci_set_dma_mask(pdev, 0xFFFFFFFFULL); + 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->open = &streamer_open; + dev->hard_start_xmit = &streamer_xmit; + dev->change_mtu = &streamer_change_mtu; + dev->stop = &streamer_close; +#if STREAMER_IOCTL + dev->do_ioctl = &streamer_ioctl; +#else + dev->do_ioctl = NULL; +#endif + dev->set_multicast_list = &streamer_set_rx_mode; + dev->get_stats = &streamer_get_stats; + dev->set_mac_address = &streamer_set_mac_address; + 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=dev->priv; + 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("net/streamer_tr", NULL); + } +#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 = (struct streamer_private *) dev->priv; + 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 */ + current->state = TASK_UNINTERRUPTIBLE; + schedule_timeout(HZ); + + 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)) { + current->state = TASK_INTERRUPTIBLE; + schedule_timeout(HZ/10); + if (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: "); + for (i = 0; i < 6; i++) { + printk("%02x:", dev->dev_addr[i]); + } + printk("\n"); +#endif + } + return 0; +} + +static int streamer_open(struct net_device *dev) +{ + struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv; + __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, SA_SHIRQ, "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 { + int i; + + 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 = + (struct streamer_private *) dev->priv; + __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); + streamer_priv->streamer_stats.rx_dropped++; + } else { /* we allocated an skb OK */ + skb->dev = dev; + + 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); + } + dev->last_rx = jiffies; + streamer_priv->streamer_stats.rx_packets++; + streamer_priv->streamer_stats.rx_bytes += length; + } /* if skb == null */ + } /* end received without errors */ + + /* try the next one */ + rx_desc = &streamer_priv->streamer_rx_ring[(rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1)]; + } /* end for all completed rx descriptors */ +} + +static irqreturn_t streamer_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + struct net_device *dev = (struct net_device *) dev_id; + struct streamer_private *streamer_priv = + (struct streamer_private *) dev->priv; + __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; + __u16 sisr; + __u16 misr; + u8 max_intr = MAX_INTR; + + spin_lock(&streamer_priv->streamer_lock); + sisr = readw(streamer_mmio + SISR); + + while((sisr & (SISR_MI | SISR_SRB_REPLY | SISR_ADAPTER_CHECK | SISR_ASB_FREE | + SISR_ARB_CMD | SISR_TRB_REPLY | SISR_PAR_ERR | SISR_SERR_ERR)) + && (max_intr > 0)) { + + if(sisr & SISR_PAR_ERR) { + writew(~SISR_PAR_ERR, streamer_mmio + SISR_RUM); + (void)readw(streamer_mmio + SISR_RUM); + } + + else if(sisr & SISR_SERR_ERR) { + writew(~SISR_SERR_ERR, streamer_mmio + SISR_RUM); + (void)readw(streamer_mmio + SISR_RUM); + } + + else if(sisr & SISR_MI) { + misr = readw(streamer_mmio + MISR_RUM); + + if (misr & MISR_TX2_EOF) { + while(streamer_priv->streamer_tx_ring[(streamer_priv->tx_ring_last_status + 1) & (STREAMER_TX_RING_SIZE - 1)].status) { + streamer_priv->tx_ring_last_status = (streamer_priv->tx_ring_last_status + 1) & (STREAMER_TX_RING_SIZE - 1); + streamer_priv->free_tx_ring_entries++; + streamer_priv->streamer_stats.tx_bytes += streamer_priv->tx_ring_skb[streamer_priv->tx_ring_last_status]->len; + streamer_priv->streamer_stats.tx_packets++; + dev_kfree_skb_irq(streamer_priv->tx_ring_skb[streamer_priv->tx_ring_last_status]); + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].buffer = 0xdeadbeef; + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].status = 0; + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].bufcnt_framelen = 0; + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].buflen = 0; + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].rsvd1 = 0; + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].rsvd2 = 0; + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].rsvd3 = 0; + } + netif_wake_queue(dev); + } + + if (misr & MISR_RX_EOF) { + streamer_rx(dev); + } + /* MISR_RX_EOF */ + + if (misr & MISR_RX_NOBUF) { + /* According to the documentation, we don't have to do anything, + * but trapping it keeps it out of /var/log/messages. + */ + } /* SISR_RX_NOBUF */ + + writew(~misr, streamer_mmio + MISR_RUM); + (void)readw(streamer_mmio + MISR_RUM); + } + + else if (sisr & SISR_SRB_REPLY) { + if (streamer_priv->srb_queued == 1) { + wake_up_interruptible(&streamer_priv->srb_wait); + } else if (streamer_priv->srb_queued == 2) { + streamer_srb_bh(dev); + } + streamer_priv->srb_queued = 0; + + writew(~SISR_SRB_REPLY, streamer_mmio + SISR_RUM); + (void)readw(streamer_mmio + SISR_RUM); + } + + else if (sisr & SISR_ADAPTER_CHECK) { + printk(KERN_WARNING "%s: Adapter Check Interrupt Raised, 8 bytes of information follow:\n", dev->name); + writel(readl(streamer_mmio + LAPWWO), streamer_mmio + LAPA); + printk(KERN_WARNING "%s: Words %x:%x:%x:%x:\n", + dev->name, readw(streamer_mmio + LAPDINC), + ntohs(readw(streamer_mmio + LAPDINC)), + ntohs(readw(streamer_mmio + LAPDINC)), + ntohs(readw(streamer_mmio + LAPDINC))); + netif_stop_queue(dev); + netif_carrier_off(dev); + printk(KERN_WARNING "%s: Adapter must be manually reset.\n", dev->name); + } + + /* SISR_ADAPTER_CHECK */ + else if (sisr & SISR_ASB_FREE) { + /* Wake up anything that is waiting for the asb response */ + if (streamer_priv->asb_queued) { + streamer_asb_bh(dev); + } + writew(~SISR_ASB_FREE, streamer_mmio + SISR_RUM); + (void)readw(streamer_mmio + SISR_RUM); + } + /* SISR_ASB_FREE */ + else if (sisr & SISR_ARB_CMD) { + streamer_arb_cmd(dev); + writew(~SISR_ARB_CMD, streamer_mmio + SISR_RUM); + (void)readw(streamer_mmio + SISR_RUM); + } + /* SISR_ARB_CMD */ + else if (sisr & SISR_TRB_REPLY) { + /* Wake up anything that is waiting for the trb response */ + if (streamer_priv->trb_queued) { + wake_up_interruptible(&streamer_priv-> + trb_wait); + } + streamer_priv->trb_queued = 0; + writew(~SISR_TRB_REPLY, streamer_mmio + SISR_RUM); + (void)readw(streamer_mmio + SISR_RUM); + } + /* SISR_TRB_REPLY */ + + sisr = readw(streamer_mmio + SISR); + max_intr--; + } /* while() */ + + spin_unlock(&streamer_priv->streamer_lock) ; + return IRQ_HANDLED; +} + +static int streamer_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct streamer_private *streamer_priv = + (struct streamer_private *) dev->priv; + __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; + unsigned long flags ; + + spin_lock_irqsave(&streamer_priv->streamer_lock, flags); + + if (streamer_priv->free_tx_ring_entries) { + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].status = 0; + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].bufcnt_framelen = 0x00020000 | skb->len; + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].buffer = + cpu_to_le32(pci_map_single(streamer_priv->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE)); + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].rsvd1 = skb->len; + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].rsvd2 = 0; + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].rsvd3 = 0; + streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].buflen = skb->len; + + streamer_priv->tx_ring_skb[streamer_priv->tx_ring_free] = skb; + streamer_priv->free_tx_ring_entries--; +#if STREAMER_DEBUG_PACKETS + { + int i; + printk("streamer_xmit packet print:\n"); + for (i = 0; i < skb->len; i++) { + printk("%x:", skb->data[i]); + if (((i + 1) % 16) == 0) + printk("\n"); + } + printk("\n"); + } +#endif + + writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, + &streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free], + sizeof(struct streamer_tx_desc), PCI_DMA_TODEVICE)), + streamer_mmio + TX2LFDA); + (void)readl(streamer_mmio + TX2LFDA); + + streamer_priv->tx_ring_free = (streamer_priv->tx_ring_free + 1) & (STREAMER_TX_RING_SIZE - 1); + spin_unlock_irqrestore(&streamer_priv->streamer_lock,flags); + return 0; + } else { + netif_stop_queue(dev); + spin_unlock_irqrestore(&streamer_priv->streamer_lock,flags); + return 1; + } +} + + +static int streamer_close(struct net_device *dev) +{ + struct streamer_private *streamer_priv = + (struct streamer_private *) dev->priv; + __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; + unsigned long flags; + int i; + + netif_stop_queue(dev); + netif_carrier_off(dev); + writew(streamer_priv->srb, streamer_mmio + LAPA); + writew(htons(SRB_CLOSE_ADAPTER << 8),streamer_mmio+LAPDINC); + writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); + + spin_lock_irqsave(&streamer_priv->streamer_lock, flags); + + streamer_priv->srb_queued = 1; + 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, + jiffies + 60 * 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; + } + } + + streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1); + + for (i = 0; i < STREAMER_RX_RING_SIZE; i++) { + if (streamer_priv->rx_ring_skb[streamer_priv->rx_ring_last_received]) { + dev_kfree_skb(streamer_priv->rx_ring_skb[streamer_priv->rx_ring_last_received]); + } + streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1); + } + + /* reset tx/rx fifo's and busmaster logic */ + + /* TBD. Add graceful way to reset the LLC channel without doing a soft reset. + writel(readl(streamer_mmio+BCTL)|(3<<13),streamer_mmio+BCTL); + udelay(1); + writel(readl(streamer_mmio+BCTL)&~(3<<13),streamer_mmio+BCTL); + */ + +#if STREAMER_DEBUG + writew(streamer_priv->srb, streamer_mmio + LAPA); + printk("srb): "); + for (i = 0; i < 2; i++) { + printk("%x ", ntohs(readw(streamer_mmio + LAPDINC))); + } + printk("\n"); +#endif + free_irq(dev->irq, dev); + return 0; +} + +static void streamer_set_rx_mode(struct net_device *dev) +{ + struct streamer_private *streamer_priv = + (struct streamer_private *) dev->priv; + __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; + __u8 options = 0; + struct dev_mc_list *dmi; + unsigned char dev_mc_address[5]; + int i; + + writel(streamer_priv->srb, streamer_mmio + LAPA); + options = streamer_priv->streamer_copy_all_options; + + if (dev->flags & IFF_PROMISC) + options |= (3 << 5); /* All LLC and MAC frames, all through the main rx channel */ + else + options &= ~(3 << 5); + + /* Only issue the srb if there is a change in options */ + + if ((options ^ streamer_priv->streamer_copy_all_options)) + { + /* Now to issue the srb command to alter the copy.all.options */ + writew(htons(SRB_MODIFY_RECEIVE_OPTIONS << 8), streamer_mmio+LAPDINC); + writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); + writew(htons((streamer_priv->streamer_receive_options << 8) | options),streamer_mmio+LAPDINC); + writew(htons(0x4a41),streamer_mmio+LAPDINC); + writew(htons(0x4d45),streamer_mmio+LAPDINC); + writew(htons(0x5320),streamer_mmio+LAPDINC); + writew(0x2020, streamer_mmio + LAPDINC); + + streamer_priv->srb_queued = 2; /* Can't sleep, use srb_bh */ + + writel(LISR_SRB_CMD, streamer_mmio + LISR_SUM); + + streamer_priv->streamer_copy_all_options = options; + return; + } + + /* Set the functional addresses we need for multicast */ + writel(streamer_priv->srb,streamer_mmio+LAPA); + dev_mc_address[0] = dev_mc_address[1] = dev_mc_address[2] = dev_mc_address[3] = 0 ; + + for (i=0,dmi=dev->mc_list;i < dev->mc_count; i++,dmi = dmi->next) + { + dev_mc_address[0] |= dmi->dmi_addr[2] ; + dev_mc_address[1] |= dmi->dmi_addr[3] ; + dev_mc_address[2] |= dmi->dmi_addr[4] ; + dev_mc_address[3] |= dmi->dmi_addr[5] ; + } + + writew(htons(SRB_SET_FUNC_ADDRESS << 8),streamer_mmio+LAPDINC); + writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); + writew(0,streamer_mmio+LAPDINC); + writew(htons( (dev_mc_address[0] << 8) | dev_mc_address[1]),streamer_mmio+LAPDINC); + writew(htons( (dev_mc_address[2] << 8) | dev_mc_address[3]),streamer_mmio+LAPDINC); + streamer_priv->srb_queued = 2 ; + writel(LISR_SRB_CMD,streamer_mmio+LISR_SUM); +} + +static void streamer_srb_bh(struct net_device *dev) +{ + struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv; + __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; + __u16 srb_word; + + writew(streamer_priv->srb, streamer_mmio + LAPA); + srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; + + switch (srb_word) { + + /* SRB_MODIFY_RECEIVE_OPTIONS i.e. set_multicast_list options (promiscuous) + * At some point we should do something if we get an error, such as + * resetting the IFF_PROMISC flag in dev + */ + + case SRB_MODIFY_RECEIVE_OPTIONS: + srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; + + switch (srb_word) { + case 0x01: + printk(KERN_WARNING "%s: Unrecognized srb command\n", dev->name); + break; + case 0x04: + printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); + break; + default: + if (streamer_priv->streamer_message_level) + printk(KERN_WARNING "%s: Receive Options Modified to %x,%x\n", + dev->name, + streamer_priv->streamer_copy_all_options, + streamer_priv->streamer_receive_options); + break; + } /* switch srb[2] */ + break; + + + /* SRB_SET_GROUP_ADDRESS - Multicast group setting + */ + case SRB_SET_GROUP_ADDRESS: + srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; + switch (srb_word) { + case 0x00: + break; + case 0x01: + printk(KERN_WARNING "%s: Unrecognized srb command \n",dev->name); + break; + case 0x04: + printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); + break; + case 0x3c: + printk(KERN_WARNING "%s: Group/Functional address indicator bits not set correctly\n", dev->name); + break; + case 0x3e: /* If we ever implement individual multicast addresses, will need to deal with this */ + printk(KERN_WARNING "%s: Group address registers full\n", dev->name); + break; + case 0x55: + printk(KERN_INFO "%s: Group Address already set.\n", dev->name); + break; + default: + break; + } /* switch srb[2] */ + break; + + + /* SRB_RESET_GROUP_ADDRESS - Remove a multicast address from group list + */ + case SRB_RESET_GROUP_ADDRESS: + srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; + switch (srb_word) { + case 0x00: + break; + case 0x01: + printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name); + break; + case 0x04: + printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); + break; + case 0x39: /* Must deal with this if individual multicast addresses used */ + printk(KERN_INFO "%s: Group address not found \n", dev->name); + break; + default: + break; + } /* switch srb[2] */ + break; + + + /* SRB_SET_FUNC_ADDRESS - Called by the set_rx_mode + */ + + case SRB_SET_FUNC_ADDRESS: + srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; + switch (srb_word) { + case 0x00: + if (streamer_priv->streamer_message_level) + printk(KERN_INFO "%s: Functional Address Mask Set \n", dev->name); + break; + case 0x01: + printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name); + break; + case 0x04: + printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); + break; + default: + break; + } /* switch srb[2] */ + break; + + /* SRB_READ_LOG - Read and reset the adapter error counters + */ + + case SRB_READ_LOG: + srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; + switch (srb_word) { + case 0x00: + { + int i; + if (streamer_priv->streamer_message_level) + printk(KERN_INFO "%s: Read Log command complete\n", dev->name); + printk("Read Log statistics: "); + writew(streamer_priv->srb + 6, + streamer_mmio + LAPA); + for (i = 0; i < 5; i++) { + printk("%x:", ntohs(readw(streamer_mmio + LAPDINC))); + } + printk("\n"); + } + break; + case 0x01: + printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name); + break; + case 0x04: + printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); + break; + + } /* switch srb[2] */ + break; + + /* SRB_READ_SR_COUNTERS - Read and reset the source routing bridge related counters */ + + case SRB_READ_SR_COUNTERS: + srb_word=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; + switch (srb_word) { + case 0x00: + if (streamer_priv->streamer_message_level) + printk(KERN_INFO "%s: Read Source Routing Counters issued\n", dev->name); + break; + case 0x01: + printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name); + break; + case 0x04: + printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name); + break; + default: + break; + } /* switch srb[2] */ + break; + + default: + printk(KERN_WARNING "%s: Unrecognized srb bh return value.\n", dev->name); + break; + } /* switch srb[0] */ +} + +static struct net_device_stats *streamer_get_stats(struct net_device *dev) +{ + struct streamer_private *streamer_priv; + streamer_priv = (struct streamer_private *) dev->priv; + return (struct net_device_stats *) &streamer_priv->streamer_stats; +} + +static int streamer_set_mac_address(struct net_device *dev, void *addr) +{ + struct sockaddr *saddr = addr; + struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv; + + if (netif_running(dev)) + { + printk(KERN_WARNING "%s: Cannot set mac/laa address while card is open\n", dev->name); + return -EIO; + } + + memcpy(streamer_priv->streamer_laa, saddr->sa_data, dev->addr_len); + + if (streamer_priv->streamer_message_level) { + printk(KERN_INFO "%s: MAC/LAA Set to = %x.%x.%x.%x.%x.%x\n", + dev->name, streamer_priv->streamer_laa[0], + streamer_priv->streamer_laa[1], + streamer_priv->streamer_laa[2], + streamer_priv->streamer_laa[3], + streamer_priv->streamer_laa[4], + streamer_priv->streamer_laa[5]); + } + return 0; +} + +static void streamer_arb_cmd(struct net_device *dev) +{ + struct streamer_private *streamer_priv = + (struct streamer_private *) dev->priv; + __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; + __u8 header_len; + __u16 frame_len, buffer_len; + struct sk_buff *mac_frame; + __u8 frame_data[256]; + __u16 buff_off; + __u16 lan_status = 0, lan_status_diff; /* Initialize to stop compiler warning */ + __u8 fdx_prot_error; + __u16 next_ptr; + __u16 arb_word; + +#if STREAMER_NETWORK_MONITOR + struct trh_hdr *mac_hdr; +#endif + + writew(streamer_priv->arb, streamer_mmio + LAPA); + arb_word=ntohs(readw(streamer_mmio+LAPD)) >> 8; + + if (arb_word == ARB_RECEIVE_DATA) { /* Receive.data, MAC frames */ + writew(streamer_priv->arb + 6, streamer_mmio + LAPA); + streamer_priv->mac_rx_buffer = buff_off = ntohs(readw(streamer_mmio + LAPDINC)); + header_len=ntohs(readw(streamer_mmio+LAPDINC)) >> 8; /* 802.5 Token-Ring Header Length */ + frame_len = ntohs(readw(streamer_mmio + LAPDINC)); + +#if STREAMER_DEBUG + { + int i; + __u16 next; + __u8 status; + __u16 len; + + writew(ntohs(buff_off), streamer_mmio + LAPA); /*setup window to frame data */ + next = htons(readw(streamer_mmio + LAPDINC)); + status = + ntohs(readw(streamer_mmio + LAPDINC)) & 0xff; + len = ntohs(readw(streamer_mmio + LAPDINC)); + + /* print out 1st 14 bytes of frame data */ + for (i = 0; i < 7; i++) { + printk("Loc %d = %04x\n", i, + ntohs(readw + (streamer_mmio + LAPDINC))); + } + + printk("next %04x, fs %02x, len %04x \n", next, + status, len); + } +#endif + if (!(mac_frame = dev_alloc_skb(frame_len))) { + printk(KERN_WARNING "%s: Memory squeeze, dropping frame.\n", + dev->name); + goto drop_frame; + } + /* Walk the buffer chain, creating the frame */ + + do { + int i; + __u16 rx_word; + + writew(htons(buff_off), streamer_mmio + LAPA); /* setup window to frame data */ + next_ptr = ntohs(readw(streamer_mmio + LAPDINC)); + readw(streamer_mmio + LAPDINC); /* read thru status word */ + buffer_len = ntohs(readw(streamer_mmio + LAPDINC)); + + if (buffer_len > 256) + break; + + i = 0; + while (i < buffer_len) { + rx_word=ntohs(readw(streamer_mmio+LAPDINC)); + frame_data[i]=rx_word >> 8; + frame_data[i+1]=rx_word & 0xff; + i += 2; + } + + memcpy(skb_put(mac_frame, buffer_len), + frame_data, buffer_len); + } while (next_ptr && (buff_off = next_ptr)); + +#if STREAMER_NETWORK_MONITOR + printk(KERN_WARNING "%s: Received MAC Frame, details: \n", + dev->name); + mac_hdr = (struct trh_hdr *) mac_frame->data; + printk(KERN_WARNING + "%s: MAC Frame Dest. Addr: %02x:%02x:%02x:%02x:%02x:%02x \n", + dev->name, mac_hdr->daddr[0], mac_hdr->daddr[1], + mac_hdr->daddr[2], mac_hdr->daddr[3], + mac_hdr->daddr[4], mac_hdr->daddr[5]); + printk(KERN_WARNING + "%s: MAC Frame Srce. Addr: %02x:%02x:%02x:%02x:%02x:%02x \n", + dev->name, mac_hdr->saddr[0], mac_hdr->saddr[1], + mac_hdr->saddr[2], mac_hdr->saddr[3], + mac_hdr->saddr[4], mac_hdr->saddr[5]); +#endif + mac_frame->dev = dev; + mac_frame->protocol = tr_type_trans(mac_frame, dev); + netif_rx(mac_frame); + + /* Now tell the card we have dealt with the received frame */ +drop_frame: + /* Set LISR Bit 1 */ + writel(LISR_ARB_FREE, streamer_priv->streamer_mmio + LISR_SUM); + + /* Is the ASB free ? */ + + if (!(readl(streamer_priv->streamer_mmio + SISR) & SISR_ASB_FREE)) + { + streamer_priv->asb_queued = 1; + writel(LISR_ASB_FREE_REQ, streamer_priv->streamer_mmio + LISR_SUM); + return; + /* Drop out and wait for the bottom half to be run */ + } + + + writew(streamer_priv->asb, streamer_mmio + LAPA); + writew(htons(ASB_RECEIVE_DATA << 8), streamer_mmio+LAPDINC); + writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); + writew(0, streamer_mmio + LAPDINC); + writew(htons(streamer_priv->mac_rx_buffer), streamer_mmio + LAPD); + + writel(LISR_ASB_REPLY | LISR_ASB_FREE_REQ, streamer_priv->streamer_mmio + LISR_SUM); + + streamer_priv->asb_queued = 2; + return; + + } else if (arb_word == ARB_LAN_CHANGE_STATUS) { /* Lan.change.status */ + writew(streamer_priv->arb + 6, streamer_mmio + LAPA); + lan_status = ntohs(readw(streamer_mmio + LAPDINC)); + fdx_prot_error = ntohs(readw(streamer_mmio+LAPD)) >> 8; + + /* Issue ARB Free */ + writew(LISR_ARB_FREE, streamer_priv->streamer_mmio + LISR_SUM); + + lan_status_diff = (streamer_priv->streamer_lan_status ^ lan_status) & + lan_status; + + if (lan_status_diff & (LSC_LWF | LSC_ARW | LSC_FPE | LSC_RR)) + { + if (lan_status_diff & LSC_LWF) + printk(KERN_WARNING "%s: Short circuit detected on the lobe\n", dev->name); + if (lan_status_diff & LSC_ARW) + printk(KERN_WARNING "%s: Auto removal error\n", dev->name); + if (lan_status_diff & LSC_FPE) + printk(KERN_WARNING "%s: FDX Protocol Error\n", dev->name); + if (lan_status_diff & LSC_RR) + printk(KERN_WARNING "%s: Force remove MAC frame received\n", dev->name); + + /* Adapter has been closed by the hardware */ + + /* reset tx/rx fifo's and busmaster logic */ + + /* @TBD. no llc reset on autostreamer writel(readl(streamer_mmio+BCTL)|(3<<13),streamer_mmio+BCTL); + udelay(1); + writel(readl(streamer_mmio+BCTL)&~(3<<13),streamer_mmio+BCTL); */ + + netif_stop_queue(dev); + netif_carrier_off(dev); + printk(KERN_WARNING "%s: Adapter must be manually reset.\n", dev->name); + } + /* If serious error */ + if (streamer_priv->streamer_message_level) { + if (lan_status_diff & LSC_SIG_LOSS) + printk(KERN_WARNING "%s: No receive signal detected \n", dev->name); + if (lan_status_diff & LSC_HARD_ERR) + printk(KERN_INFO "%s: Beaconing \n", dev->name); + if (lan_status_diff & LSC_SOFT_ERR) + printk(KERN_WARNING "%s: Adapter transmitted Soft Error Report Mac Frame \n", dev->name); + if (lan_status_diff & LSC_TRAN_BCN) + printk(KERN_INFO "%s: We are tranmitting the beacon, aaah\n", dev->name); + if (lan_status_diff & LSC_SS) + printk(KERN_INFO "%s: Single Station on the ring \n", dev->name); + if (lan_status_diff & LSC_RING_REC) + printk(KERN_INFO "%s: Ring recovery ongoing\n", dev->name); + if (lan_status_diff & LSC_FDX_MODE) + printk(KERN_INFO "%s: Operating in FDX mode\n", dev->name); + } + + if (lan_status_diff & LSC_CO) { + if (streamer_priv->streamer_message_level) + printk(KERN_INFO "%s: Counter Overflow \n", dev->name); + + /* Issue READ.LOG command */ + + writew(streamer_priv->srb, streamer_mmio + LAPA); + writew(htons(SRB_READ_LOG << 8),streamer_mmio+LAPDINC); + writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); + writew(0, streamer_mmio + LAPDINC); + streamer_priv->srb_queued = 2; /* Can't sleep, use srb_bh */ + + writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM); + } + + if (lan_status_diff & LSC_SR_CO) { + if (streamer_priv->streamer_message_level) + printk(KERN_INFO "%s: Source routing counters overflow\n", dev->name); + + /* Issue a READ.SR.COUNTERS */ + writew(streamer_priv->srb, streamer_mmio + LAPA); + writew(htons(SRB_READ_SR_COUNTERS << 8), + streamer_mmio+LAPDINC); + writew(htons(STREAMER_CLEAR_RET_CODE << 8), + streamer_mmio+LAPDINC); + streamer_priv->srb_queued = 2; /* Can't sleep, use srb_bh */ + writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM); + + } + streamer_priv->streamer_lan_status = lan_status; + } /* Lan.change.status */ + else + printk(KERN_WARNING "%s: Unknown arb command \n", dev->name); +} + +static void streamer_asb_bh(struct net_device *dev) +{ + struct streamer_private *streamer_priv = + (struct streamer_private *) dev->priv; + __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; + + if (streamer_priv->asb_queued == 1) + { + /* Dropped through the first time */ + + writew(streamer_priv->asb, streamer_mmio + LAPA); + writew(htons(ASB_RECEIVE_DATA << 8),streamer_mmio+LAPDINC); + writew(htons(STREAMER_CLEAR_RET_CODE << 8), streamer_mmio+LAPDINC); + writew(0, streamer_mmio + LAPDINC); + writew(htons(streamer_priv->mac_rx_buffer), streamer_mmio + LAPD); + + writel(LISR_ASB_REPLY | LISR_ASB_FREE_REQ, streamer_priv->streamer_mmio + LISR_SUM); + streamer_priv->asb_queued = 2; + + return; + } + + if (streamer_priv->asb_queued == 2) { + __u8 rc; + writew(streamer_priv->asb + 2, streamer_mmio + LAPA); + rc=ntohs(readw(streamer_mmio+LAPD)) >> 8; + switch (rc) { + case 0x01: + printk(KERN_WARNING "%s: Unrecognized command code \n", dev->name); + break; + case 0x26: + printk(KERN_WARNING "%s: Unrecognized buffer address \n", dev->name); + break; + case 0xFF: + /* Valid response, everything should be ok again */ + break; + default: + printk(KERN_WARNING "%s: Invalid return code in asb\n", dev->name); + break; + } + } + streamer_priv->asb_queued = 0; +} + +static int streamer_change_mtu(struct net_device *dev, int mtu) +{ + struct streamer_private *streamer_priv = + (struct streamer_private *) dev->priv; + __u16 max_mtu; + + if (streamer_priv->streamer_ring_speed == 4) + max_mtu = 4500; + else + max_mtu = 18000; + + if (mtu > max_mtu) + return -EINVAL; + if (mtu < 100) + return -EINVAL; + + dev->mtu = mtu; + streamer_priv->pkt_buf_sz = mtu + TR_HLEN; + + return 0; +} + +#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) +{ + struct streamer_private *sdev=NULL; + struct pci_dev *pci_device = NULL; + int len = 0; + off_t begin = 0; + off_t pos = 0; + int size; + + struct net_device *dev; + + size = sprintf(buffer, "IBM LanStreamer/MPC Chipset Token Ring Adapters\n"); + + pos += size; + len += size; + + for(sdev=dev_streamer; sdev; sdev=sdev->next) { + pci_device=sdev->pci_dev; + dev=pci_get_drvdata(pci_device); + + size = sprintf_info(buffer + len, dev); + len += size; + pos = begin + len; + + if (pos < offset) { + len = 0; + begin = pos; + } + if (pos > offset + length) + break; + } /* for */ + + *start = buffer + (offset - begin); /* Start of wanted data */ + len -= (offset - begin); /* Start slop */ + if (len > length) + len = length; /* Ending slop */ + return len; +} + +static int sprintf_info(char *buffer, struct net_device *dev) +{ + struct streamer_private *streamer_priv = + (struct streamer_private *) dev->priv; + __u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; + struct streamer_adapter_addr_table sat; + struct streamer_parameters_table spt; + int size = 0; + int i; + + writew(streamer_priv->streamer_addr_table_addr, streamer_mmio + LAPA); + for (i = 0; i < 14; i += 2) { + __u16 io_word; + __u8 *datap = (__u8 *) & sat; + io_word=ntohs(readw(streamer_mmio+LAPDINC)); + datap[size]=io_word >> 8; + datap[size+1]=io_word & 0xff; + } + writew(streamer_priv->streamer_parms_addr, streamer_mmio + LAPA); + for (i = 0; i < 68; i += 2) { + __u16 io_word; + __u8 *datap = (__u8 *) & spt; + io_word=ntohs(readw(streamer_mmio+LAPDINC)); + datap[size]=io_word >> 8; + datap[size+1]=io_word & 0xff; + } + + + size = sprintf(buffer, "\n%6s: Adapter Address : Node Address : Functional Addr\n", dev->name); + + size += sprintf(buffer + size, + "%6s: %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x\n", + dev->name, dev->dev_addr[0], dev->dev_addr[1], + dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4], + dev->dev_addr[5], sat.node_addr[0], sat.node_addr[1], + sat.node_addr[2], sat.node_addr[3], sat.node_addr[4], + sat.node_addr[5], sat.func_addr[0], sat.func_addr[1], + sat.func_addr[2], sat.func_addr[3]); + + size += sprintf(buffer + size, "\n%6s: Token Ring Parameters Table:\n", dev->name); + + size += sprintf(buffer + size, "%6s: Physical Addr : Up Node Address : Poll Address : AccPri : Auth Src : Att Code :\n", dev->name); + + size += sprintf(buffer + size, + "%6s: %02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x:%02x:%02x : %04x : %04x : %04x :\n", + dev->name, spt.phys_addr[0], spt.phys_addr[1], + spt.phys_addr[2], spt.phys_addr[3], + spt.up_node_addr[0], spt.up_node_addr[1], + spt.up_node_addr[2], spt.up_node_addr[3], + spt.up_node_addr[4], spt.up_node_addr[4], + spt.poll_addr[0], spt.poll_addr[1], spt.poll_addr[2], + spt.poll_addr[3], spt.poll_addr[4], spt.poll_addr[5], + ntohs(spt.acc_priority), ntohs(spt.auth_source_class), + ntohs(spt.att_code)); + + size += sprintf(buffer + size, "%6s: Source Address : Bcn T : Maj. V : Lan St : Lcl Rg : Mon Err : Frame Correl : \n", dev->name); + + size += sprintf(buffer + size, + "%6s: %02x:%02x:%02x:%02x:%02x:%02x : %04x : %04x : %04x : %04x : %04x : %04x : \n", + dev->name, spt.source_addr[0], spt.source_addr[1], + spt.source_addr[2], spt.source_addr[3], + spt.source_addr[4], spt.source_addr[5], + ntohs(spt.beacon_type), ntohs(spt.major_vector), + ntohs(spt.lan_status), ntohs(spt.local_ring), + ntohs(spt.mon_error), ntohs(spt.frame_correl)); + + size += sprintf(buffer + size, "%6s: Beacon Details : Tx : Rx : NAUN Node Address : NAUN Node Phys : \n", + dev->name); + + size += sprintf(buffer + size, + "%6s: : %02x : %02x : %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x : \n", + dev->name, ntohs(spt.beacon_transmit), + ntohs(spt.beacon_receive), spt.beacon_naun[0], + spt.beacon_naun[1], spt.beacon_naun[2], + spt.beacon_naun[3], spt.beacon_naun[4], + spt.beacon_naun[5], spt.beacon_phys[0], + spt.beacon_phys[1], spt.beacon_phys[2], + spt.beacon_phys[3]); + return size; +} +#endif +#endif + +#if STREAMER_IOCTL && (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) +static int streamer_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + int i; + struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv; + u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; + + switch(cmd) { + case IOCTL_SISR_MASK: + writew(SISR_MI, streamer_mmio + SISR_MASK_SUM); + break; + case IOCTL_SPIN_LOCK_TEST: + printk(KERN_INFO "spin_lock() called.\n"); + spin_lock(&streamer_priv->streamer_lock); + spin_unlock(&streamer_priv->streamer_lock); + printk(KERN_INFO "spin_unlock() finished.\n"); + break; + case IOCTL_PRINT_BDAS: + printk(KERN_INFO "bdas: RXBDA: %x RXLBDA: %x TX2FDA: %x TX2LFDA: %x\n", + readw(streamer_mmio + RXBDA), + readw(streamer_mmio + RXLBDA), + readw(streamer_mmio + TX2FDA), + readw(streamer_mmio + TX2LFDA)); + break; + case IOCTL_PRINT_REGISTERS: + printk(KERN_INFO "registers:\n"); + printk(KERN_INFO "SISR: %04x MISR: %04x LISR: %04x BCTL: %04x BMCTL: %04x\nmask %04x mask %04x\n", + readw(streamer_mmio + SISR), + readw(streamer_mmio + MISR_RUM), + readw(streamer_mmio + LISR), + readw(streamer_mmio + BCTL), + readw(streamer_mmio + BMCTL_SUM), + readw(streamer_mmio + SISR_MASK), + readw(streamer_mmio + MISR_MASK)); + break; + case IOCTL_PRINT_RX_BUFS: + printk(KERN_INFO "Print rx bufs:\n"); + for(i=0; i<STREAMER_RX_RING_SIZE; i++) + printk(KERN_INFO "rx_ring %d status: 0x%x\n", i, + streamer_priv->streamer_rx_ring[i].status); + break; + case IOCTL_PRINT_TX_BUFS: + printk(KERN_INFO "Print tx bufs:\n"); + for(i=0; i<STREAMER_TX_RING_SIZE; i++) + printk(KERN_INFO "tx_ring %d status: 0x%x\n", i, + streamer_priv->streamer_tx_ring[i].status); + break; + case IOCTL_RX_CMD: + streamer_rx(dev); + printk(KERN_INFO "Sent rx command.\n"); + break; + default: + printk(KERN_INFO "Bad ioctl!\n"); + } + return 0; +} +#endif + +static struct pci_driver streamer_pci_driver = { + .name = "lanstreamer", + .id_table = streamer_pci_tbl, + .probe = streamer_init_one, + .remove = __devexit_p(streamer_remove_one), +}; + +static int __init streamer_init_module(void) { + return pci_module_init(&streamer_pci_driver); +} + +static void __exit streamer_cleanup_module(void) { + pci_unregister_driver(&streamer_pci_driver); +} + +module_init(streamer_init_module); +module_exit(streamer_cleanup_module); +MODULE_LICENSE("GPL"); |