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path: root/drivers/net/tokenring/lanstreamer.c
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-rw-r--r--drivers/net/tokenring/lanstreamer.c2011
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 00000000000..99e0b03b69a
--- /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");