forked from Minki/linux
9cbc1cb8cd
Conflicts: Documentation/feature-removal-schedule.txt drivers/scsi/fcoe/fcoe.c net/core/drop_monitor.c net/core/net-traces.c
1918 lines
63 KiB
C
1918 lines
63 KiB
C
/*
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* lanstreamer.c -- driver for the IBM Auto LANStreamer PCI Adapter
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*
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* Written By: Mike Sullivan, IBM Corporation
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*
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* Copyright (C) 1999 IBM Corporation
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*
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* Linux driver for IBM PCI tokenring cards based on the LanStreamer MPC
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* chipset.
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*
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* This driver is based on the olympic driver for IBM PCI TokenRing cards (Pit/Pit-Phy/Olympic
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* chipsets) written by:
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* 1999 Peter De Schrijver All Rights Reserved
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* 1999 Mike Phillips (phillim@amtrak.com)
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*
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* Base Driver Skeleton:
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* Written 1993-94 by Donald Becker.
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*
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* Copyright 1993 United States Government as represented by the
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* Director, National Security Agency.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* NO WARRANTY
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* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
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* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
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* solely responsible for determining the appropriateness of using and
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* distributing the Program and assumes all risks associated with its
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* exercise of rights under this Agreement, including but not limited to
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* the risks and costs of program errors, damage to or loss of data,
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* programs or equipment, and unavailability or interruption of operations.
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*
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* DISCLAIMER OF LIABILITY
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* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
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* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*
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* 12/10/99 - Alpha Release 0.1.0
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* First release to the public
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* 03/03/00 - Merged to kernel, indented -kr -i8 -bri0, fixed some missing
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* malloc free checks, reviewed code. <alan@redhat.com>
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* 03/13/00 - Added spinlocks for smp
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* 03/08/01 - Added support for module_init() and module_exit()
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* 08/15/01 - Added ioctl() functionality for debugging, changed netif_*_queue
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* calls and other incorrectness - Kent Yoder <yoder1@us.ibm.com>
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* 11/05/01 - Restructured the interrupt function, added delays, reduced the
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* the number of TX descriptors to 1, which together can prevent
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* the card from locking up the box - <yoder1@us.ibm.com>
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* 09/27/02 - New PCI interface + bug fix. - <yoder1@us.ibm.com>
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* 11/13/02 - Removed free_irq calls which could cause a hang, added
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* netif_carrier_{on|off} - <yoder1@us.ibm.com>
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*
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* To Do:
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*
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*
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* If Problems do Occur
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* Most problems can be rectified by either closing and opening the interface
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* (ifconfig down and up) or rmmod and insmod'ing the driver (a bit difficult
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* if compiled into the kernel).
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*/
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/* Change STREAMER_DEBUG to 1 to get verbose, and I mean really verbose, messages */
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#define STREAMER_DEBUG 0
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#define STREAMER_DEBUG_PACKETS 0
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/* Change STREAMER_NETWORK_MONITOR to receive mac frames through the arb channel.
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* Will also create a /proc/net/streamer_tr entry if proc_fs is compiled into the
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* kernel.
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* Intended to be used to create a ring-error reporting network module
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* i.e. it will give you the source address of beaconers on the ring
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*/
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#define STREAMER_NETWORK_MONITOR 0
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/* #define CONFIG_PROC_FS */
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/*
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* Allow or disallow ioctl's for debugging
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*/
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#define STREAMER_IOCTL 0
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/timer.h>
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#include <linux/in.h>
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#include <linux/ioport.h>
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#include <linux/string.h>
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#include <linux/proc_fs.h>
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#include <linux/ptrace.h>
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#include <linux/skbuff.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/netdevice.h>
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#include <linux/trdevice.h>
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#include <linux/stddef.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include <linux/spinlock.h>
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#include <linux/bitops.h>
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#include <linux/jiffies.h>
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#include <net/net_namespace.h>
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#include <net/checksum.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#include "lanstreamer.h"
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#if (BITS_PER_LONG == 64)
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#error broken on 64-bit: stores pointer to rx_ring->buffer in 32-bit int
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#endif
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/* I've got to put some intelligence into the version number so that Peter and I know
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* which version of the code somebody has got.
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* Version Number = a.b.c.d where a.b.c is the level of code and d is the latest author.
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* So 0.0.1.pds = Peter, 0.0.1.mlp = Mike
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*
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* Official releases will only have an a.b.c version number format.
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*/
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static char version[] = "LanStreamer.c v0.4.0 03/08/01 - Mike Sullivan\n"
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" v0.5.3 11/13/02 - Kent Yoder";
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static struct pci_device_id streamer_pci_tbl[] = {
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{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_TR, PCI_ANY_ID, PCI_ANY_ID,},
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{} /* terminating entry */
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};
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MODULE_DEVICE_TABLE(pci,streamer_pci_tbl);
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static char *open_maj_error[] = {
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"No error", "Lobe Media Test", "Physical Insertion",
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"Address Verification", "Neighbor Notification (Ring Poll)",
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"Request Parameters", "FDX Registration Request",
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"FDX Lobe Media Test", "FDX Duplicate Address Check",
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"Unknown stage"
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};
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static char *open_min_error[] = {
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"No error", "Function Failure", "Signal Lost", "Wire Fault",
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"Ring Speed Mismatch", "Timeout", "Ring Failure", "Ring Beaconing",
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"Duplicate Node Address", "Request Parameters", "Remove Received",
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"Reserved", "Reserved", "No Monitor Detected for RPL",
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"Monitor Contention failer for RPL", "FDX Protocol Error"
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};
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/* Module parameters */
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/* Ring Speed 0,4,16
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* 0 = Autosense
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* 4,16 = Selected speed only, no autosense
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* This allows the card to be the first on the ring
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* and become the active monitor.
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*
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* WARNING: Some hubs will allow you to insert
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* at the wrong speed
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*/
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static int ringspeed[STREAMER_MAX_ADAPTERS] = { 0, };
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module_param_array(ringspeed, int, NULL, 0);
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/* Packet buffer size */
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static int pkt_buf_sz[STREAMER_MAX_ADAPTERS] = { 0, };
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module_param_array(pkt_buf_sz, int, NULL, 0);
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/* Message Level */
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static int message_level[STREAMER_MAX_ADAPTERS] = { 1, };
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module_param_array(message_level, int, NULL, 0);
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#if STREAMER_IOCTL
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static int streamer_ioctl(struct net_device *, struct ifreq *, int);
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#endif
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static int streamer_reset(struct net_device *dev);
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static int streamer_open(struct net_device *dev);
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static int streamer_xmit(struct sk_buff *skb, struct net_device *dev);
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static int streamer_close(struct net_device *dev);
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static void streamer_set_rx_mode(struct net_device *dev);
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static irqreturn_t streamer_interrupt(int irq, void *dev_id);
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static int streamer_set_mac_address(struct net_device *dev, void *addr);
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static void streamer_arb_cmd(struct net_device *dev);
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static int streamer_change_mtu(struct net_device *dev, int mtu);
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static void streamer_srb_bh(struct net_device *dev);
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static void streamer_asb_bh(struct net_device *dev);
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#if STREAMER_NETWORK_MONITOR
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#ifdef CONFIG_PROC_FS
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static int streamer_proc_info(char *buffer, char **start, off_t offset,
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int length, int *eof, void *data);
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static int sprintf_info(char *buffer, struct net_device *dev);
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struct streamer_private *dev_streamer=NULL;
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#endif
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#endif
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static const struct net_device_ops streamer_netdev_ops = {
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.ndo_open = streamer_open,
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.ndo_stop = streamer_close,
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.ndo_start_xmit = streamer_xmit,
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.ndo_change_mtu = streamer_change_mtu,
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#if STREAMER_IOCTL
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.ndo_do_ioctl = streamer_ioctl,
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#endif
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.ndo_set_multicast_list = streamer_set_rx_mode,
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.ndo_set_mac_address = streamer_set_mac_address,
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};
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static int __devinit streamer_init_one(struct pci_dev *pdev,
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const struct pci_device_id *ent)
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{
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struct net_device *dev;
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struct streamer_private *streamer_priv;
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unsigned long pio_start, pio_end, pio_flags, pio_len;
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unsigned long mmio_start, mmio_end, mmio_flags, mmio_len;
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int rc = 0;
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static int card_no=-1;
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u16 pcr;
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#if STREAMER_DEBUG
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printk("lanstreamer::streamer_init_one, entry pdev %p\n",pdev);
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#endif
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card_no++;
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dev = alloc_trdev(sizeof(*streamer_priv));
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if (dev==NULL) {
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printk(KERN_ERR "lanstreamer: out of memory.\n");
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return -ENOMEM;
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}
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streamer_priv = netdev_priv(dev);
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#if STREAMER_NETWORK_MONITOR
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#ifdef CONFIG_PROC_FS
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if (!dev_streamer)
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create_proc_read_entry("streamer_tr", 0, init_net.proc_net,
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streamer_proc_info, NULL);
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streamer_priv->next = dev_streamer;
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dev_streamer = streamer_priv;
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#endif
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#endif
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rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
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if (rc) {
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printk(KERN_ERR "%s: No suitable PCI mapping available.\n",
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dev->name);
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rc = -ENODEV;
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goto err_out;
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}
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rc = pci_enable_device(pdev);
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if (rc) {
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printk(KERN_ERR "lanstreamer: unable to enable pci device\n");
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rc=-EIO;
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goto err_out;
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}
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pci_set_master(pdev);
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rc = pci_set_mwi(pdev);
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if (rc) {
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printk(KERN_ERR "lanstreamer: unable to enable MWI on pci device\n");
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goto err_out_disable;
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}
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pio_start = pci_resource_start(pdev, 0);
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pio_end = pci_resource_end(pdev, 0);
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pio_flags = pci_resource_flags(pdev, 0);
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pio_len = pci_resource_len(pdev, 0);
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mmio_start = pci_resource_start(pdev, 1);
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mmio_end = pci_resource_end(pdev, 1);
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mmio_flags = pci_resource_flags(pdev, 1);
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mmio_len = pci_resource_len(pdev, 1);
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#if STREAMER_DEBUG
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printk("lanstreamer: pio_start %x pio_end %x pio_len %x pio_flags %x\n",
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pio_start, pio_end, pio_len, pio_flags);
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printk("lanstreamer: mmio_start %x mmio_end %x mmio_len %x mmio_flags %x\n",
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mmio_start, mmio_end, mmio_flags, mmio_len);
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#endif
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if (!request_region(pio_start, pio_len, "lanstreamer")) {
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printk(KERN_ERR "lanstreamer: unable to get pci io addr %lx\n",
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pio_start);
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rc= -EBUSY;
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goto err_out_mwi;
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}
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if (!request_mem_region(mmio_start, mmio_len, "lanstreamer")) {
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printk(KERN_ERR "lanstreamer: unable to get pci mmio addr %lx\n",
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mmio_start);
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rc= -EBUSY;
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goto err_out_free_pio;
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}
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streamer_priv->streamer_mmio=ioremap(mmio_start, mmio_len);
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if (streamer_priv->streamer_mmio == NULL) {
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printk(KERN_ERR "lanstreamer: unable to remap MMIO %lx\n",
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mmio_start);
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rc= -EIO;
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goto err_out_free_mmio;
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}
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init_waitqueue_head(&streamer_priv->srb_wait);
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init_waitqueue_head(&streamer_priv->trb_wait);
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dev->netdev_ops = &streamer_netdev_ops;
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dev->irq = pdev->irq;
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dev->base_addr=pio_start;
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SET_NETDEV_DEV(dev, &pdev->dev);
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streamer_priv->streamer_card_name = (char *)pdev->resource[0].name;
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streamer_priv->pci_dev = pdev;
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if ((pkt_buf_sz[card_no] < 100) || (pkt_buf_sz[card_no] > 18000))
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streamer_priv->pkt_buf_sz = PKT_BUF_SZ;
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else
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streamer_priv->pkt_buf_sz = pkt_buf_sz[card_no];
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streamer_priv->streamer_ring_speed = ringspeed[card_no];
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streamer_priv->streamer_message_level = message_level[card_no];
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pci_set_drvdata(pdev, dev);
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spin_lock_init(&streamer_priv->streamer_lock);
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pci_read_config_word (pdev, PCI_COMMAND, &pcr);
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pcr |= PCI_COMMAND_SERR;
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pci_write_config_word (pdev, PCI_COMMAND, pcr);
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printk("%s \n", version);
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printk("%s: %s. I/O at %hx, MMIO at %p, using irq %d\n",dev->name,
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streamer_priv->streamer_card_name,
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(unsigned int) dev->base_addr,
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streamer_priv->streamer_mmio,
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dev->irq);
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if (streamer_reset(dev))
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goto err_out_unmap;
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rc = register_netdev(dev);
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if (rc)
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goto err_out_unmap;
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return 0;
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err_out_unmap:
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iounmap(streamer_priv->streamer_mmio);
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err_out_free_mmio:
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release_mem_region(mmio_start, mmio_len);
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err_out_free_pio:
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release_region(pio_start, pio_len);
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err_out_mwi:
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pci_clear_mwi(pdev);
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err_out_disable:
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pci_disable_device(pdev);
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err_out:
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free_netdev(dev);
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#if STREAMER_DEBUG
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printk("lanstreamer: Exit error %x\n",rc);
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#endif
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return rc;
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}
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static void __devexit streamer_remove_one(struct pci_dev *pdev)
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{
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struct net_device *dev=pci_get_drvdata(pdev);
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struct streamer_private *streamer_priv;
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#if STREAMER_DEBUG
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printk("lanstreamer::streamer_remove_one entry pdev %p\n",pdev);
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#endif
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if (dev == NULL) {
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printk(KERN_ERR "lanstreamer::streamer_remove_one, ERROR dev is NULL\n");
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return;
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}
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streamer_priv=netdev_priv(dev);
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if (streamer_priv == NULL) {
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printk(KERN_ERR "lanstreamer::streamer_remove_one, ERROR dev->priv is NULL\n");
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return;
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}
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#if STREAMER_NETWORK_MONITOR
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#ifdef CONFIG_PROC_FS
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{
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struct streamer_private **p, **next;
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for (p = &dev_streamer; *p; p = next) {
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next = &(*p)->next;
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if (*p == streamer_priv) {
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*p = *next;
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break;
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}
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}
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if (!dev_streamer)
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remove_proc_entry("streamer_tr", init_net.proc_net);
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}
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#endif
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#endif
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unregister_netdev(dev);
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iounmap(streamer_priv->streamer_mmio);
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release_mem_region(pci_resource_start(pdev, 1), pci_resource_len(pdev,1));
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release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev,0));
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pci_clear_mwi(pdev);
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pci_disable_device(pdev);
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free_netdev(dev);
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pci_set_drvdata(pdev, NULL);
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}
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static int streamer_reset(struct net_device *dev)
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{
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struct streamer_private *streamer_priv;
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__u8 __iomem *streamer_mmio;
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unsigned long t;
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unsigned int uaa_addr;
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struct sk_buff *skb = NULL;
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__u16 misr;
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streamer_priv = netdev_priv(dev);
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streamer_mmio = streamer_priv->streamer_mmio;
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writew(readw(streamer_mmio + BCTL) | BCTL_SOFTRESET, streamer_mmio + BCTL);
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t = jiffies;
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/* Hold soft reset bit for a while */
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ssleep(1);
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writew(readw(streamer_mmio + BCTL) & ~BCTL_SOFTRESET,
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streamer_mmio + BCTL);
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#if STREAMER_DEBUG
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printk("BCTL: %x\n", readw(streamer_mmio + BCTL));
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printk("GPR: %x\n", readw(streamer_mmio + GPR));
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printk("SISRMASK: %x\n", readw(streamer_mmio + SISR_MASK));
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#endif
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|
writew(readw(streamer_mmio + BCTL) | (BCTL_RX_FIFO_8 | BCTL_TX_FIFO_8), streamer_mmio + BCTL );
|
|
|
|
if (streamer_priv->streamer_ring_speed == 0) { /* Autosense */
|
|
writew(readw(streamer_mmio + GPR) | GPR_AUTOSENSE,
|
|
streamer_mmio + GPR);
|
|
if (streamer_priv->streamer_message_level)
|
|
printk(KERN_INFO "%s: Ringspeed autosense mode on\n",
|
|
dev->name);
|
|
} else if (streamer_priv->streamer_ring_speed == 16) {
|
|
if (streamer_priv->streamer_message_level)
|
|
printk(KERN_INFO "%s: Trying to open at 16 Mbps as requested\n",
|
|
dev->name);
|
|
writew(GPR_16MBPS, streamer_mmio + GPR);
|
|
} else if (streamer_priv->streamer_ring_speed == 4) {
|
|
if (streamer_priv->streamer_message_level)
|
|
printk(KERN_INFO "%s: Trying to open at 4 Mbps as requested\n",
|
|
dev->name);
|
|
writew(0, streamer_mmio + GPR);
|
|
}
|
|
|
|
skb = dev_alloc_skb(streamer_priv->pkt_buf_sz);
|
|
if (!skb) {
|
|
printk(KERN_INFO "%s: skb allocation for diagnostics failed...proceeding\n",
|
|
dev->name);
|
|
} else {
|
|
struct streamer_rx_desc *rx_ring;
|
|
u8 *data;
|
|
|
|
rx_ring=(struct streamer_rx_desc *)skb->data;
|
|
data=((u8 *)skb->data)+sizeof(struct streamer_rx_desc);
|
|
rx_ring->forward=0;
|
|
rx_ring->status=0;
|
|
rx_ring->buffer=cpu_to_le32(pci_map_single(streamer_priv->pci_dev, data,
|
|
512, PCI_DMA_FROMDEVICE));
|
|
rx_ring->framelen_buflen=512;
|
|
writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, rx_ring, 512, PCI_DMA_FROMDEVICE)),
|
|
streamer_mmio+RXBDA);
|
|
}
|
|
|
|
#if STREAMER_DEBUG
|
|
printk("GPR = %x\n", readw(streamer_mmio + GPR));
|
|
#endif
|
|
/* start solo init */
|
|
writew(SISR_MI, streamer_mmio + SISR_MASK_SUM);
|
|
|
|
while (!((readw(streamer_mmio + SISR)) & SISR_SRB_REPLY)) {
|
|
msleep_interruptible(100);
|
|
if (time_after(jiffies, t + 40 * HZ)) {
|
|
printk(KERN_ERR
|
|
"IBM PCI tokenring card not responding\n");
|
|
release_region(dev->base_addr, STREAMER_IO_SPACE);
|
|
if (skb)
|
|
dev_kfree_skb(skb);
|
|
return -1;
|
|
}
|
|
}
|
|
writew(~SISR_SRB_REPLY, streamer_mmio + SISR_RUM);
|
|
misr = readw(streamer_mmio + MISR_RUM);
|
|
writew(~misr, streamer_mmio + MISR_RUM);
|
|
|
|
if (skb)
|
|
dev_kfree_skb(skb); /* release skb used for diagnostics */
|
|
|
|
#if STREAMER_DEBUG
|
|
printk("LAPWWO: %x, LAPA: %x LAPE: %x\n",
|
|
readw(streamer_mmio + LAPWWO), readw(streamer_mmio + LAPA),
|
|
readw(streamer_mmio + LAPE));
|
|
#endif
|
|
|
|
#if STREAMER_DEBUG
|
|
{
|
|
int i;
|
|
writew(readw(streamer_mmio + LAPWWO),
|
|
streamer_mmio + LAPA);
|
|
printk("initialization response srb dump: ");
|
|
for (i = 0; i < 10; i++)
|
|
printk("%x:",
|
|
ntohs(readw(streamer_mmio + LAPDINC)));
|
|
printk("\n");
|
|
}
|
|
#endif
|
|
|
|
writew(readw(streamer_mmio + LAPWWO) + 6, streamer_mmio + LAPA);
|
|
if (readw(streamer_mmio + LAPD)) {
|
|
printk(KERN_INFO "tokenring card initialization failed. errorcode : %x\n",
|
|
ntohs(readw(streamer_mmio + LAPD)));
|
|
release_region(dev->base_addr, STREAMER_IO_SPACE);
|
|
return -1;
|
|
}
|
|
|
|
writew(readw(streamer_mmio + LAPWWO) + 8, streamer_mmio + LAPA);
|
|
uaa_addr = ntohs(readw(streamer_mmio + LAPDINC));
|
|
readw(streamer_mmio + LAPDINC); /* skip over Level.Addr field */
|
|
streamer_priv->streamer_addr_table_addr = ntohs(readw(streamer_mmio + LAPDINC));
|
|
streamer_priv->streamer_parms_addr = ntohs(readw(streamer_mmio + LAPDINC));
|
|
|
|
#if STREAMER_DEBUG
|
|
printk("UAA resides at %x\n", uaa_addr);
|
|
#endif
|
|
|
|
/* setup uaa area for access with LAPD */
|
|
{
|
|
int i;
|
|
__u16 addr;
|
|
writew(uaa_addr, streamer_mmio + LAPA);
|
|
for (i = 0; i < 6; i += 2) {
|
|
addr=ntohs(readw(streamer_mmio+LAPDINC));
|
|
dev->dev_addr[i]= (addr >> 8) & 0xff;
|
|
dev->dev_addr[i+1]= addr & 0xff;
|
|
}
|
|
#if STREAMER_DEBUG
|
|
printk("Adapter address: %pM\n", dev->dev_addr);
|
|
#endif
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int streamer_open(struct net_device *dev)
|
|
{
|
|
struct streamer_private *streamer_priv = netdev_priv(dev);
|
|
__u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio;
|
|
unsigned long flags;
|
|
char open_error[255];
|
|
int i, open_finished = 1;
|
|
__u16 srb_word;
|
|
__u16 srb_open;
|
|
int rc;
|
|
|
|
if (readw(streamer_mmio+BMCTL_SUM) & BMCTL_RX_ENABLED) {
|
|
rc=streamer_reset(dev);
|
|
}
|
|
|
|
if (request_irq(dev->irq, &streamer_interrupt, IRQF_SHARED, "lanstreamer", dev)) {
|
|
return -EAGAIN;
|
|
}
|
|
#if STREAMER_DEBUG
|
|
printk("BMCTL: %x\n", readw(streamer_mmio + BMCTL_SUM));
|
|
printk("pending ints: %x\n", readw(streamer_mmio + SISR));
|
|
#endif
|
|
|
|
writew(SISR_MI | SISR_SRB_REPLY, streamer_mmio + SISR_MASK); /* more ints later, doesn't stop arb cmd interrupt */
|
|
writew(LISR_LIE, streamer_mmio + LISR); /* more ints later */
|
|
|
|
/* adapter is closed, so SRB is pointed to by LAPWWO */
|
|
writew(readw(streamer_mmio + LAPWWO), streamer_mmio + LAPA);
|
|
|
|
#if STREAMER_DEBUG
|
|
printk("LAPWWO: %x, LAPA: %x\n", readw(streamer_mmio + LAPWWO),
|
|
readw(streamer_mmio + LAPA));
|
|
printk("LAPE: %x\n", readw(streamer_mmio + LAPE));
|
|
printk("SISR Mask = %04x\n", readw(streamer_mmio + SISR_MASK));
|
|
#endif
|
|
do {
|
|
for (i = 0; i < SRB_COMMAND_SIZE; i += 2) {
|
|
writew(0, streamer_mmio + LAPDINC);
|
|
}
|
|
|
|
writew(readw(streamer_mmio+LAPWWO),streamer_mmio+LAPA);
|
|
writew(htons(SRB_OPEN_ADAPTER<<8),streamer_mmio+LAPDINC) ; /* open */
|
|
writew(htons(STREAMER_CLEAR_RET_CODE<<8),streamer_mmio+LAPDINC);
|
|
writew(STREAMER_CLEAR_RET_CODE, streamer_mmio + LAPDINC);
|
|
|
|
writew(readw(streamer_mmio + LAPWWO) + 8, streamer_mmio + LAPA);
|
|
#if STREAMER_NETWORK_MONITOR
|
|
/* If Network Monitor, instruct card to copy MAC frames through the ARB */
|
|
writew(htons(OPEN_ADAPTER_ENABLE_FDX | OPEN_ADAPTER_PASS_ADC_MAC | OPEN_ADAPTER_PASS_ATT_MAC | OPEN_ADAPTER_PASS_BEACON), streamer_mmio + LAPDINC); /* offset 8 word contains open options */
|
|
#else
|
|
writew(htons(OPEN_ADAPTER_ENABLE_FDX), streamer_mmio + LAPDINC); /* Offset 8 word contains Open.Options */
|
|
#endif
|
|
|
|
if (streamer_priv->streamer_laa[0]) {
|
|
writew(readw(streamer_mmio + LAPWWO) + 12, streamer_mmio + LAPA);
|
|
writew(htons((streamer_priv->streamer_laa[0] << 8) |
|
|
streamer_priv->streamer_laa[1]),streamer_mmio+LAPDINC);
|
|
writew(htons((streamer_priv->streamer_laa[2] << 8) |
|
|
streamer_priv->streamer_laa[3]),streamer_mmio+LAPDINC);
|
|
writew(htons((streamer_priv->streamer_laa[4] << 8) |
|
|
streamer_priv->streamer_laa[5]),streamer_mmio+LAPDINC);
|
|
memcpy(dev->dev_addr, streamer_priv->streamer_laa, dev->addr_len);
|
|
}
|
|
|
|
/* save off srb open offset */
|
|
srb_open = readw(streamer_mmio + LAPWWO);
|
|
#if STREAMER_DEBUG
|
|
writew(readw(streamer_mmio + LAPWWO),
|
|
streamer_mmio + LAPA);
|
|
printk("srb open request: \n");
|
|
for (i = 0; i < 16; i++) {
|
|
printk("%x:", ntohs(readw(streamer_mmio + LAPDINC)));
|
|
}
|
|
printk("\n");
|
|
#endif
|
|
spin_lock_irqsave(&streamer_priv->streamer_lock, flags);
|
|
streamer_priv->srb_queued = 1;
|
|
|
|
/* signal solo that SRB command has been issued */
|
|
writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM);
|
|
spin_unlock_irqrestore(&streamer_priv->streamer_lock, flags);
|
|
|
|
while (streamer_priv->srb_queued) {
|
|
interruptible_sleep_on_timeout(&streamer_priv->srb_wait, 5 * HZ);
|
|
if (signal_pending(current)) {
|
|
printk(KERN_WARNING "%s: SRB timed out.\n", dev->name);
|
|
printk(KERN_WARNING "SISR=%x MISR=%x, LISR=%x\n",
|
|
readw(streamer_mmio + SISR),
|
|
readw(streamer_mmio + MISR_RUM),
|
|
readw(streamer_mmio + LISR));
|
|
streamer_priv->srb_queued = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
#if STREAMER_DEBUG
|
|
printk("SISR_MASK: %x\n", readw(streamer_mmio + SISR_MASK));
|
|
printk("srb open response:\n");
|
|
writew(srb_open, streamer_mmio + LAPA);
|
|
for (i = 0; i < 10; i++) {
|
|
printk("%x:",
|
|
ntohs(readw(streamer_mmio + LAPDINC)));
|
|
}
|
|
#endif
|
|
|
|
/* If we get the same return response as we set, the interrupt wasn't raised and the open
|
|
* timed out.
|
|
*/
|
|
writew(srb_open + 2, streamer_mmio + LAPA);
|
|
srb_word = ntohs(readw(streamer_mmio + LAPD)) >> 8;
|
|
if (srb_word == STREAMER_CLEAR_RET_CODE) {
|
|
printk(KERN_WARNING "%s: Adapter Open time out or error.\n",
|
|
dev->name);
|
|
return -EIO;
|
|
}
|
|
|
|
if (srb_word != 0) {
|
|
if (srb_word == 0x07) {
|
|
if (!streamer_priv->streamer_ring_speed && open_finished) { /* Autosense , first time around */
|
|
printk(KERN_WARNING "%s: Retrying at different ring speed \n",
|
|
dev->name);
|
|
open_finished = 0;
|
|
} else {
|
|
__u16 error_code;
|
|
|
|
writew(srb_open + 6, streamer_mmio + LAPA);
|
|
error_code = ntohs(readw(streamer_mmio + LAPD));
|
|
strcpy(open_error, open_maj_error[(error_code & 0xf0) >> 4]);
|
|
strcat(open_error, " - ");
|
|
strcat(open_error, open_min_error[(error_code & 0x0f)]);
|
|
|
|
if (!streamer_priv->streamer_ring_speed
|
|
&& ((error_code & 0x0f) == 0x0d))
|
|
{
|
|
printk(KERN_WARNING "%s: Tried to autosense ring speed with no monitors present\n", dev->name);
|
|
printk(KERN_WARNING "%s: Please try again with a specified ring speed \n", dev->name);
|
|
free_irq(dev->irq, dev);
|
|
return -EIO;
|
|
}
|
|
|
|
printk(KERN_WARNING "%s: %s\n",
|
|
dev->name, open_error);
|
|
free_irq(dev->irq, dev);
|
|
return -EIO;
|
|
|
|
} /* if autosense && open_finished */
|
|
} else {
|
|
printk(KERN_WARNING "%s: Bad OPEN response: %x\n",
|
|
dev->name, srb_word);
|
|
free_irq(dev->irq, dev);
|
|
return -EIO;
|
|
}
|
|
} else
|
|
open_finished = 1;
|
|
} while (!(open_finished)); /* Will only loop if ring speed mismatch re-open attempted && autosense is on */
|
|
|
|
writew(srb_open + 18, streamer_mmio + LAPA);
|
|
srb_word=ntohs(readw(streamer_mmio+LAPD)) >> 8;
|
|
if (srb_word & (1 << 3))
|
|
if (streamer_priv->streamer_message_level)
|
|
printk(KERN_INFO "%s: Opened in FDX Mode\n", dev->name);
|
|
|
|
if (srb_word & 1)
|
|
streamer_priv->streamer_ring_speed = 16;
|
|
else
|
|
streamer_priv->streamer_ring_speed = 4;
|
|
|
|
if (streamer_priv->streamer_message_level)
|
|
printk(KERN_INFO "%s: Opened in %d Mbps mode\n",
|
|
dev->name,
|
|
streamer_priv->streamer_ring_speed);
|
|
|
|
writew(srb_open + 8, streamer_mmio + LAPA);
|
|
streamer_priv->asb = ntohs(readw(streamer_mmio + LAPDINC));
|
|
streamer_priv->srb = ntohs(readw(streamer_mmio + LAPDINC));
|
|
streamer_priv->arb = ntohs(readw(streamer_mmio + LAPDINC));
|
|
readw(streamer_mmio + LAPDINC); /* offset 14 word is rsvd */
|
|
streamer_priv->trb = ntohs(readw(streamer_mmio + LAPDINC));
|
|
|
|
streamer_priv->streamer_receive_options = 0x00;
|
|
streamer_priv->streamer_copy_all_options = 0;
|
|
|
|
/* setup rx ring */
|
|
/* enable rx channel */
|
|
writew(~BMCTL_RX_DIS, streamer_mmio + BMCTL_RUM);
|
|
|
|
/* setup rx descriptors */
|
|
streamer_priv->streamer_rx_ring=
|
|
kmalloc( sizeof(struct streamer_rx_desc)*
|
|
STREAMER_RX_RING_SIZE,GFP_KERNEL);
|
|
if (!streamer_priv->streamer_rx_ring) {
|
|
printk(KERN_WARNING "%s ALLOC of streamer rx ring FAILED!!\n",dev->name);
|
|
return -EIO;
|
|
}
|
|
|
|
for (i = 0; i < STREAMER_RX_RING_SIZE; i++) {
|
|
struct sk_buff *skb;
|
|
|
|
skb = dev_alloc_skb(streamer_priv->pkt_buf_sz);
|
|
if (skb == NULL)
|
|
break;
|
|
|
|
skb->dev = dev;
|
|
|
|
streamer_priv->streamer_rx_ring[i].forward =
|
|
cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[i + 1],
|
|
sizeof(struct streamer_rx_desc), PCI_DMA_FROMDEVICE));
|
|
streamer_priv->streamer_rx_ring[i].status = 0;
|
|
streamer_priv->streamer_rx_ring[i].buffer =
|
|
cpu_to_le32(pci_map_single(streamer_priv->pci_dev, skb->data,
|
|
streamer_priv->pkt_buf_sz, PCI_DMA_FROMDEVICE));
|
|
streamer_priv->streamer_rx_ring[i].framelen_buflen = streamer_priv->pkt_buf_sz;
|
|
streamer_priv->rx_ring_skb[i] = skb;
|
|
}
|
|
streamer_priv->streamer_rx_ring[STREAMER_RX_RING_SIZE - 1].forward =
|
|
cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[0],
|
|
sizeof(struct streamer_rx_desc), PCI_DMA_FROMDEVICE));
|
|
|
|
if (i == 0) {
|
|
printk(KERN_WARNING "%s: Not enough memory to allocate rx buffers. Adapter disabled\n", dev->name);
|
|
free_irq(dev->irq, dev);
|
|
return -EIO;
|
|
}
|
|
|
|
streamer_priv->rx_ring_last_received = STREAMER_RX_RING_SIZE - 1; /* last processed rx status */
|
|
|
|
writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[0],
|
|
sizeof(struct streamer_rx_desc), PCI_DMA_TODEVICE)),
|
|
streamer_mmio + RXBDA);
|
|
writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_rx_ring[STREAMER_RX_RING_SIZE - 1],
|
|
sizeof(struct streamer_rx_desc), PCI_DMA_TODEVICE)),
|
|
streamer_mmio + RXLBDA);
|
|
|
|
/* set bus master interrupt event mask */
|
|
writew(MISR_RX_NOBUF | MISR_RX_EOF, streamer_mmio + MISR_MASK);
|
|
|
|
|
|
/* setup tx ring */
|
|
streamer_priv->streamer_tx_ring=kmalloc(sizeof(struct streamer_tx_desc)*
|
|
STREAMER_TX_RING_SIZE,GFP_KERNEL);
|
|
if (!streamer_priv->streamer_tx_ring) {
|
|
printk(KERN_WARNING "%s ALLOC of streamer_tx_ring FAILED\n",dev->name);
|
|
return -EIO;
|
|
}
|
|
|
|
writew(~BMCTL_TX2_DIS, streamer_mmio + BMCTL_RUM); /* Enables TX channel 2 */
|
|
for (i = 0; i < STREAMER_TX_RING_SIZE; i++) {
|
|
streamer_priv->streamer_tx_ring[i].forward = cpu_to_le32(pci_map_single(streamer_priv->pci_dev,
|
|
&streamer_priv->streamer_tx_ring[i + 1],
|
|
sizeof(struct streamer_tx_desc),
|
|
PCI_DMA_TODEVICE));
|
|
streamer_priv->streamer_tx_ring[i].status = 0;
|
|
streamer_priv->streamer_tx_ring[i].bufcnt_framelen = 0;
|
|
streamer_priv->streamer_tx_ring[i].buffer = 0;
|
|
streamer_priv->streamer_tx_ring[i].buflen = 0;
|
|
streamer_priv->streamer_tx_ring[i].rsvd1 = 0;
|
|
streamer_priv->streamer_tx_ring[i].rsvd2 = 0;
|
|
streamer_priv->streamer_tx_ring[i].rsvd3 = 0;
|
|
}
|
|
streamer_priv->streamer_tx_ring[STREAMER_TX_RING_SIZE - 1].forward =
|
|
cpu_to_le32(pci_map_single(streamer_priv->pci_dev, &streamer_priv->streamer_tx_ring[0],
|
|
sizeof(struct streamer_tx_desc), PCI_DMA_TODEVICE));
|
|
|
|
streamer_priv->free_tx_ring_entries = STREAMER_TX_RING_SIZE;
|
|
streamer_priv->tx_ring_free = 0; /* next entry in tx ring to use */
|
|
streamer_priv->tx_ring_last_status = STREAMER_TX_RING_SIZE - 1;
|
|
|
|
/* set Busmaster interrupt event mask (handle receives on interrupt only */
|
|
writew(MISR_TX2_EOF | MISR_RX_NOBUF | MISR_RX_EOF, streamer_mmio + MISR_MASK);
|
|
/* set system event interrupt mask */
|
|
writew(SISR_ADAPTER_CHECK | SISR_ARB_CMD | SISR_TRB_REPLY | SISR_ASB_FREE, streamer_mmio + SISR_MASK_SUM);
|
|
|
|
#if STREAMER_DEBUG
|
|
printk("BMCTL: %x\n", readw(streamer_mmio + BMCTL_SUM));
|
|
printk("SISR MASK: %x\n", readw(streamer_mmio + SISR_MASK));
|
|
#endif
|
|
|
|
#if STREAMER_NETWORK_MONITOR
|
|
|
|
writew(streamer_priv->streamer_addr_table_addr, streamer_mmio + LAPA);
|
|
printk("%s: Node Address: %04x:%04x:%04x\n", dev->name,
|
|
ntohs(readw(streamer_mmio + LAPDINC)),
|
|
ntohs(readw(streamer_mmio + LAPDINC)),
|
|
ntohs(readw(streamer_mmio + LAPDINC)));
|
|
readw(streamer_mmio + LAPDINC);
|
|
readw(streamer_mmio + LAPDINC);
|
|
printk("%s: Functional Address: %04x:%04x\n", dev->name,
|
|
ntohs(readw(streamer_mmio + LAPDINC)),
|
|
ntohs(readw(streamer_mmio + LAPDINC)));
|
|
|
|
writew(streamer_priv->streamer_parms_addr + 4,
|
|
streamer_mmio + LAPA);
|
|
printk("%s: NAUN Address: %04x:%04x:%04x\n", dev->name,
|
|
ntohs(readw(streamer_mmio + LAPDINC)),
|
|
ntohs(readw(streamer_mmio + LAPDINC)),
|
|
ntohs(readw(streamer_mmio + LAPDINC)));
|
|
#endif
|
|
|
|
netif_start_queue(dev);
|
|
netif_carrier_on(dev);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* When we enter the rx routine we do not know how many frames have been
|
|
* queued on the rx channel. Therefore we start at the next rx status
|
|
* position and travel around the receive ring until we have completed
|
|
* all the frames.
|
|
*
|
|
* This means that we may process the frame before we receive the end
|
|
* of frame interrupt. This is why we always test the status instead
|
|
* of blindly processing the next frame.
|
|
*
|
|
*/
|
|
static void streamer_rx(struct net_device *dev)
|
|
{
|
|
struct streamer_private *streamer_priv =
|
|
netdev_priv(dev);
|
|
__u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio;
|
|
struct streamer_rx_desc *rx_desc;
|
|
int rx_ring_last_received, length, frame_length, buffer_cnt = 0;
|
|
struct sk_buff *skb, *skb2;
|
|
|
|
/* setup the next rx descriptor to be received */
|
|
rx_desc = &streamer_priv->streamer_rx_ring[(streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1)];
|
|
rx_ring_last_received = streamer_priv->rx_ring_last_received;
|
|
|
|
while (rx_desc->status & 0x01000000) { /* While processed descriptors are available */
|
|
if (rx_ring_last_received != streamer_priv->rx_ring_last_received)
|
|
{
|
|
printk(KERN_WARNING "RX Error 1 rx_ring_last_received not the same %x %x\n",
|
|
rx_ring_last_received, streamer_priv->rx_ring_last_received);
|
|
}
|
|
streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1);
|
|
rx_ring_last_received = streamer_priv->rx_ring_last_received;
|
|
|
|
length = rx_desc->framelen_buflen & 0xffff; /* buffer length */
|
|
frame_length = (rx_desc->framelen_buflen >> 16) & 0xffff;
|
|
|
|
if (rx_desc->status & 0x7E830000) { /* errors */
|
|
if (streamer_priv->streamer_message_level) {
|
|
printk(KERN_WARNING "%s: Rx Error %x \n",
|
|
dev->name, rx_desc->status);
|
|
}
|
|
} else { /* received without errors */
|
|
if (rx_desc->status & 0x80000000) { /* frame complete */
|
|
buffer_cnt = 1;
|
|
skb = dev_alloc_skb(streamer_priv->pkt_buf_sz);
|
|
} else {
|
|
skb = dev_alloc_skb(frame_length);
|
|
}
|
|
|
|
if (skb == NULL)
|
|
{
|
|
printk(KERN_WARNING "%s: Not enough memory to copy packet to upper layers. \n", dev->name);
|
|
dev->stats.rx_dropped++;
|
|
} else { /* we allocated an skb OK */
|
|
if (buffer_cnt == 1) {
|
|
/* release the DMA mapping */
|
|
pci_unmap_single(streamer_priv->pci_dev,
|
|
le32_to_cpu(streamer_priv->streamer_rx_ring[rx_ring_last_received].buffer),
|
|
streamer_priv->pkt_buf_sz,
|
|
PCI_DMA_FROMDEVICE);
|
|
skb2 = streamer_priv->rx_ring_skb[rx_ring_last_received];
|
|
#if STREAMER_DEBUG_PACKETS
|
|
{
|
|
int i;
|
|
printk("streamer_rx packet print: skb->data2 %p skb->head %p\n", skb2->data, skb2->head);
|
|
for (i = 0; i < frame_length; i++)
|
|
{
|
|
printk("%x:", skb2->data[i]);
|
|
if (((i + 1) % 16) == 0)
|
|
printk("\n");
|
|
}
|
|
printk("\n");
|
|
}
|
|
#endif
|
|
skb_put(skb2, length);
|
|
skb2->protocol = tr_type_trans(skb2, dev);
|
|
/* recycle this descriptor */
|
|
streamer_priv->streamer_rx_ring[rx_ring_last_received].status = 0;
|
|
streamer_priv->streamer_rx_ring[rx_ring_last_received].framelen_buflen = streamer_priv->pkt_buf_sz;
|
|
streamer_priv->streamer_rx_ring[rx_ring_last_received].buffer =
|
|
cpu_to_le32(pci_map_single(streamer_priv->pci_dev, skb->data, streamer_priv->pkt_buf_sz,
|
|
PCI_DMA_FROMDEVICE));
|
|
streamer_priv->rx_ring_skb[rx_ring_last_received] = skb;
|
|
/* place recycled descriptor back on the adapter */
|
|
writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev,
|
|
&streamer_priv->streamer_rx_ring[rx_ring_last_received],
|
|
sizeof(struct streamer_rx_desc), PCI_DMA_FROMDEVICE)),
|
|
streamer_mmio + RXLBDA);
|
|
/* pass the received skb up to the protocol */
|
|
netif_rx(skb2);
|
|
} else {
|
|
do { /* Walk the buffers */
|
|
pci_unmap_single(streamer_priv->pci_dev, le32_to_cpu(rx_desc->buffer), length, PCI_DMA_FROMDEVICE),
|
|
memcpy(skb_put(skb, length), (void *)rx_desc->buffer, length); /* copy this fragment */
|
|
streamer_priv->streamer_rx_ring[rx_ring_last_received].status = 0;
|
|
streamer_priv->streamer_rx_ring[rx_ring_last_received].framelen_buflen = streamer_priv->pkt_buf_sz;
|
|
|
|
/* give descriptor back to the adapter */
|
|
writel(cpu_to_le32(pci_map_single(streamer_priv->pci_dev,
|
|
&streamer_priv->streamer_rx_ring[rx_ring_last_received],
|
|
length, PCI_DMA_FROMDEVICE)),
|
|
streamer_mmio + RXLBDA);
|
|
|
|
if (rx_desc->status & 0x80000000)
|
|
break; /* this descriptor completes the frame */
|
|
|
|
/* else get the next pending descriptor */
|
|
if (rx_ring_last_received!= streamer_priv->rx_ring_last_received)
|
|
{
|
|
printk("RX Error rx_ring_last_received not the same %x %x\n",
|
|
rx_ring_last_received,
|
|
streamer_priv->rx_ring_last_received);
|
|
}
|
|
rx_desc = &streamer_priv->streamer_rx_ring[(streamer_priv->rx_ring_last_received+1) & (STREAMER_RX_RING_SIZE-1)];
|
|
|
|
length = rx_desc->framelen_buflen & 0xffff; /* buffer length */
|
|
streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received+1) & (STREAMER_RX_RING_SIZE - 1);
|
|
rx_ring_last_received = streamer_priv->rx_ring_last_received;
|
|
} while (1);
|
|
|
|
skb->protocol = tr_type_trans(skb, dev);
|
|
/* send up to the protocol */
|
|
netif_rx(skb);
|
|
}
|
|
dev->stats.rx_packets++;
|
|
dev->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 net_device *dev = (struct net_device *) dev_id;
|
|
struct streamer_private *streamer_priv =
|
|
netdev_priv(dev);
|
|
__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++;
|
|
dev->stats.tx_bytes += streamer_priv->tx_ring_skb[streamer_priv->tx_ring_last_status]->len;
|
|
dev->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 =
|
|
netdev_priv(dev);
|
|
__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 NETDEV_TX_BUSY;
|
|
}
|
|
}
|
|
|
|
|
|
static int streamer_close(struct net_device *dev)
|
|
{
|
|
struct streamer_private *streamer_priv =
|
|
netdev_priv(dev);
|
|
__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 =
|
|
netdev_priv(dev);
|
|
__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 = netdev_priv(dev);
|
|
__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 int streamer_set_mac_address(struct net_device *dev, void *addr)
|
|
{
|
|
struct sockaddr *saddr = addr;
|
|
struct streamer_private *streamer_priv = netdev_priv(dev);
|
|
|
|
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 =
|
|
netdev_priv(dev);
|
|
__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));
|
|
|
|
mac_frame->protocol = tr_type_trans(mac_frame, dev);
|
|
#if STREAMER_NETWORK_MONITOR
|
|
printk(KERN_WARNING "%s: Received MAC Frame, details: \n",
|
|
dev->name);
|
|
mac_hdr = tr_hdr(mac_frame);
|
|
printk(KERN_WARNING
|
|
"%s: MAC Frame Dest. Addr: %pM\n",
|
|
dev->name, mac_hdr->daddr);
|
|
printk(KERN_WARNING
|
|
"%s: MAC Frame Srce. Addr: %pM\n",
|
|
dev->name, mac_hdr->saddr);
|
|
#endif
|
|
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 =
|
|
netdev_priv(dev);
|
|
__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 =
|
|
netdev_priv(dev);
|
|
__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 =
|
|
netdev_priv(dev);
|
|
__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: %pM : %pM : %02x:%02x:%02x:%02x\n",
|
|
dev->name, dev->dev_addr, sat.node_addr,
|
|
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 : %pM : %pM : %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, spt.poll_addr,
|
|
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: %pM : %04x : %04x : %04x : %04x : %04x : %04x : \n",
|
|
dev->name, spt.source_addr,
|
|
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 : %pM : %02x:%02x:%02x:%02x : \n",
|
|
dev->name, ntohs(spt.beacon_transmit),
|
|
ntohs(spt.beacon_receive),
|
|
spt.beacon_naun,
|
|
spt.beacon_phys[0], spt.beacon_phys[1],
|
|
spt.beacon_phys[2], spt.beacon_phys[3]);
|
|
return size;
|
|
}
|
|
#endif
|
|
#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_register_driver(&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");
|