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1275 |
phoenix |
/*
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* tms380tr.c: A network driver library for Texas Instruments TMS380-based
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* Token Ring Adapters.
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*
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* Originally sktr.c: Written 1997 by Christoph Goos
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*
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* A fine result of the Linux Systems Network Architecture Project.
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* http://www.linux-sna.org
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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* The following modules are currently available for card support:
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* - tmspci (Generic PCI card support)
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* - abyss (Madge PCI support)
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* - tmsisa (SysKonnect TR4/16 ISA)
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*
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* Sources:
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* - The hardware related parts of this driver are take from
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* the SysKonnect Token Ring driver for Windows NT.
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* - I used the IBM Token Ring driver 'ibmtr.c' as a base for this
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* driver, as well as the 'skeleton.c' driver by Donald Becker.
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* - Also various other drivers in the linux source tree were taken
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* as samples for some tasks.
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* - TI TMS380 Second-Generation Token Ring User's Guide
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* - TI datasheets for respective chips
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* - David Hein at Texas Instruments
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* - Various Madge employees
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*
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* Maintainer(s):
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* JS Jay Schulist jschlst@samba.org
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* CG Christoph Goos cgoos@syskonnect.de
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* AF Adam Fritzler mid@auk.cx
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* MLP Mike Phillips phillim@amtrak.com
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* JF Jochen Friedrich jochen@scram.de
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*
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* Modification History:
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* 29-Aug-97 CG Created
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* 04-Apr-98 CG Fixed problems caused by tok_timer_check
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* 10-Apr-98 CG Fixed lockups at cable disconnection
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* 27-May-98 JS Formated to Linux Kernel Format
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* 31-May-98 JS Hacked in PCI support
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* 16-Jun-98 JS Modulized for multiple cards with one driver
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* Sep-99 AF Renamed to tms380tr (supports more than SK's)
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* 23-Sep-99 AF Added Compaq and Thomas-Conrad PCI support
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* Fixed a bug causing double copies on PCI
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* Fixed for new multicast stuff (2.2/2.3)
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* 25-Sep-99 AF Uped TPL_NUM from 3 to 9
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* Removed extraneous 'No free TPL'
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* 22-Dec-99 AF Added Madge PCI Mk2 support and generalized
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* parts of the initilization procedure.
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* 30-Dec-99 AF Turned tms380tr into a library ala 8390.
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* Madge support is provided in the abyss module
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* Generic PCI support is in the tmspci module.
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* 30-Nov-00 JF Updated PCI code to support IO MMU via
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* pci_map_static(). Alpha uses this MMU for ISA
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* as well.
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* 14-Jan-01 JF Fix DMA on ifdown/ifup sequences. Some
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* cleanup.
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*
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* To do:
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* 1. Multi/Broadcast packet handling (this may have fixed itself)
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* 2. Write a sktrisa module that includes the old ISA support (done)
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* 3. Allow modules to load their own microcode
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* 4. Speed up the BUD process -- freezing the kernel for 3+sec is
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* quite unacceptable.
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* 5. Still a few remaining stalls when the cable is unplugged.
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*/
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#ifdef MODULE
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static const char version[] = "tms380tr.c: v1.08 14/01/2001 by Christoph Goos, Adam Fritzler\n";
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#endif
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#include <linux/module.h>
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#include <linux/version.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/types.h>
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#include <linux/fcntl.h>
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#include <linux/interrupt.h>
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#include <linux/ptrace.h>
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#include <linux/ioport.h>
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#include <linux/in.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/time.h>
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#include <asm/system.h>
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#include <asm/bitops.h>
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#include <asm/io.h>
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#include <asm/dma.h>
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#include <asm/irq.h>
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#include <asm/uaccess.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/trdevice.h>
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#include "tms380tr.h" /* Our Stuff */
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#include "tms380tr_microcode.h" /* TI microcode for COMMprocessor */
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/* Use 0 for production, 1 for verification, 2 for debug, and
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* 3 for very verbose debug.
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*/
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#ifndef TMS380TR_DEBUG
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#define TMS380TR_DEBUG 0
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#endif
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static unsigned int tms380tr_debug = TMS380TR_DEBUG;
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/* Index to functions, as function prototypes.
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* Alphabetical by function name.
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*/
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/* "A" */
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/* "B" */
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static int tms380tr_bringup_diags(struct net_device *dev);
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/* "C" */
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static void tms380tr_cancel_tx_queue(struct net_local* tp);
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static int tms380tr_chipset_init(struct net_device *dev);
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static void tms380tr_chk_irq(struct net_device *dev);
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static void tms380tr_chk_outstanding_cmds(struct net_device *dev);
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static void tms380tr_chk_src_addr(unsigned char *frame, unsigned char *hw_addr);
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static unsigned char tms380tr_chk_ssb(struct net_local *tp, unsigned short IrqType);
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int tms380tr_close(struct net_device *dev);
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static void tms380tr_cmd_status_irq(struct net_device *dev);
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/* "D" */
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static void tms380tr_disable_interrupts(struct net_device *dev);
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#if TMS380TR_DEBUG > 0
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static void tms380tr_dump(unsigned char *Data, int length);
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#endif
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/* "E" */
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static void tms380tr_enable_interrupts(struct net_device *dev);
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static void tms380tr_exec_cmd(struct net_device *dev, unsigned short Command);
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static void tms380tr_exec_sifcmd(struct net_device *dev, unsigned int WriteValue);
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/* "F" */
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/* "G" */
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static struct net_device_stats *tms380tr_get_stats(struct net_device *dev);
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/* "H" */
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static void tms380tr_hardware_send_packet(struct net_device *dev,
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struct net_local* tp);
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/* "I" */
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static int tms380tr_init_adapter(struct net_device *dev);
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static int tms380tr_init_card(struct net_device *dev);
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static void tms380tr_init_ipb(struct net_local *tp);
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static void tms380tr_init_net_local(struct net_device *dev);
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static void tms380tr_init_opb(struct net_device *dev);
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void tms380tr_interrupt(int irq, void *dev_id, struct pt_regs *regs);
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/* "M" */
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/* "O" */
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int tms380tr_open(struct net_device *dev);
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static void tms380tr_open_adapter(struct net_device *dev);
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/* "P" */
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/* "R" */
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static void tms380tr_rcv_status_irq(struct net_device *dev);
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static int tms380tr_read_ptr(struct net_device *dev);
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static void tms380tr_read_ram(struct net_device *dev, unsigned char *Data,
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unsigned short Address, int Length);
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static int tms380tr_reset_adapter(struct net_device *dev);
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static void tms380tr_reset_interrupt(struct net_device *dev);
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static void tms380tr_ring_status_irq(struct net_device *dev);
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/* "S" */
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static int tms380tr_send_packet(struct sk_buff *skb, struct net_device *dev);
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static void tms380tr_set_multicast_list(struct net_device *dev);
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static int tms380tr_set_mac_address(struct net_device *dev, void *addr);
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/* "T" */
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static void tms380tr_timer_chk(unsigned long data);
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static void tms380tr_timer_end_wait(unsigned long data);
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static void tms380tr_tx_status_irq(struct net_device *dev);
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/* "U" */
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static void tms380tr_update_rcv_stats(struct net_local *tp,
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unsigned char DataPtr[], unsigned int Length);
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/* "W" */
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void tms380tr_wait(unsigned long time);
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static void tms380tr_write_rpl_status(RPL *rpl, unsigned int Status);
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static void tms380tr_write_tpl_status(TPL *tpl, unsigned int Status);
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#define SIFREADB(reg) (((struct net_local *)dev->priv)->sifreadb(dev, reg))
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#define SIFWRITEB(val, reg) (((struct net_local *)dev->priv)->sifwriteb(dev, val, reg))
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#define SIFREADW(reg) (((struct net_local *)dev->priv)->sifreadw(dev, reg))
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#define SIFWRITEW(val, reg) (((struct net_local *)dev->priv)->sifwritew(dev, val, reg))
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#if 0 /* TMS380TR_DEBUG > 0 */
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static int madgemc_sifprobe(struct net_device *dev)
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{
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unsigned char old, chk1, chk2;
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old = SIFREADB(SIFADR); /* Get the old SIFADR value */
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chk1 = 0; /* Begin with check value 0 */
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do {
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madgemc_setregpage(dev, 0);
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/* Write new SIFADR value */
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SIFWRITEB(chk1, SIFADR);
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chk2 = SIFREADB(SIFADR);
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if (chk2 != chk1)
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return -1;
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madgemc_setregpage(dev, 1);
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/* Read, invert and write */
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chk2 = SIFREADB(SIFADD);
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if (chk2 != chk1)
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return -1;
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madgemc_setregpage(dev, 0);
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chk2 ^= 0x0FE;
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SIFWRITEB(chk2, SIFADR);
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| 215 |
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/* Read, invert and compare */
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madgemc_setregpage(dev, 1);
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chk2 = SIFREADB(SIFADD);
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madgemc_setregpage(dev, 0);
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chk2 ^= 0x0FE;
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if(chk1 != chk2)
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return (-1); /* No adapter */
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chk1 -= 2;
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} while(chk1 != 0); /* Repeat 128 times (all byte values) */
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madgemc_setregpage(dev, 0); /* sanity */
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/* Restore the SIFADR value */
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SIFWRITEB(old, SIFADR);
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| 230 |
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return (0);
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}
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#endif
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| 234 |
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/* Dummy function */
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static int __init tms380tr_init_card(struct net_device *dev)
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{
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if(tms380tr_debug > 3)
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| 238 |
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printk("%s: tms380tr_init_card\n", dev->name);
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| 239 |
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| 240 |
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return (0);
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| 241 |
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}
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| 242 |
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| 243 |
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/*
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* Open/initialize the board. This is called sometime after
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* booting when the 'ifconfig' program is run.
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| 246 |
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*
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| 247 |
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* This routine should set everything up anew at each open, even
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| 248 |
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* registers that "should" only need to be set once at boot, so that
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| 249 |
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* there is non-reboot way to recover if something goes wrong.
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| 250 |
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*/
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| 251 |
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int tms380tr_open(struct net_device *dev)
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| 252 |
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{
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| 253 |
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struct net_local *tp = (struct net_local *)dev->priv;
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| 254 |
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int err;
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| 255 |
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| 256 |
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/* Reset the hardware here. Don't forget to set the station address. */
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| 257 |
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| 258 |
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if(dev->dma > 0)
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| 259 |
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{
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| 260 |
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unsigned long flags=claim_dma_lock();
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| 261 |
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disable_dma(dev->dma);
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| 262 |
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set_dma_mode(dev->dma, DMA_MODE_CASCADE);
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| 263 |
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enable_dma(dev->dma);
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| 264 |
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release_dma_lock(flags);
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| 265 |
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}
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| 266 |
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| 267 |
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err = tms380tr_chipset_init(dev);
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| 268 |
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if(err)
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| 269 |
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{
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| 270 |
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printk(KERN_INFO "%s: Chipset initialization error\n",
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| 271 |
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dev->name);
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| 272 |
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return (-1);
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| 273 |
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}
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| 274 |
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| 275 |
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init_timer(&tp->timer);
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| 276 |
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tp->timer.expires = jiffies + 30*HZ;
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| 277 |
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tp->timer.function = tms380tr_timer_end_wait;
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| 278 |
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tp->timer.data = (unsigned long)dev;
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| 279 |
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add_timer(&tp->timer);
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| 280 |
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| 281 |
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printk(KERN_INFO "%s: Adapter RAM size: %dK\n",
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| 282 |
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dev->name, tms380tr_read_ptr(dev));
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| 283 |
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| 284 |
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tms380tr_enable_interrupts(dev);
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| 285 |
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tms380tr_open_adapter(dev);
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| 286 |
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| 287 |
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netif_start_queue(dev);
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| 288 |
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| 289 |
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/* Wait for interrupt from hardware. If interrupt does not come,
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| 290 |
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* there will be a timeout from the timer.
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| 291 |
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*/
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| 292 |
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tp->Sleeping = 1;
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| 293 |
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interruptible_sleep_on(&tp->wait_for_tok_int);
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| 294 |
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del_timer(&tp->timer);
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| 295 |
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| 296 |
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/* If AdapterVirtOpenFlag is 1, the adapter is now open for use */
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| 297 |
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if(tp->AdapterVirtOpenFlag == 0)
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| 298 |
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{
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| 299 |
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tms380tr_disable_interrupts(dev);
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| 300 |
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return (-1);
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| 301 |
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}
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| 302 |
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| 303 |
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tp->StartTime = jiffies;
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| 304 |
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| 305 |
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/* Start function control timer */
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| 306 |
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tp->timer.expires = jiffies + 2*HZ;
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| 307 |
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tp->timer.function = tms380tr_timer_chk;
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| 308 |
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tp->timer.data = (unsigned long)dev;
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| 309 |
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add_timer(&tp->timer);
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| 310 |
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| 311 |
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return (0);
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| 312 |
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}
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| 313 |
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| 314 |
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/*
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| 315 |
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* Timeout function while waiting for event
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| 316 |
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*/
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| 317 |
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|
static void tms380tr_timer_end_wait(unsigned long data)
|
| 318 |
|
|
{
|
| 319 |
|
|
struct net_device *dev = (struct net_device*)data;
|
| 320 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 321 |
|
|
|
| 322 |
|
|
if(tp->Sleeping)
|
| 323 |
|
|
{
|
| 324 |
|
|
tp->Sleeping = 0;
|
| 325 |
|
|
wake_up_interruptible(&tp->wait_for_tok_int);
|
| 326 |
|
|
}
|
| 327 |
|
|
|
| 328 |
|
|
return;
|
| 329 |
|
|
}
|
| 330 |
|
|
|
| 331 |
|
|
/*
|
| 332 |
|
|
* Initialize the chipset
|
| 333 |
|
|
*/
|
| 334 |
|
|
static int tms380tr_chipset_init(struct net_device *dev)
|
| 335 |
|
|
{
|
| 336 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 337 |
|
|
int err;
|
| 338 |
|
|
|
| 339 |
|
|
tms380tr_init_ipb(tp);
|
| 340 |
|
|
tms380tr_init_opb(dev);
|
| 341 |
|
|
tms380tr_init_net_local(dev);
|
| 342 |
|
|
|
| 343 |
|
|
if(tms380tr_debug > 3)
|
| 344 |
|
|
printk(KERN_INFO "%s: Resetting adapter...\n", dev->name);
|
| 345 |
|
|
err = tms380tr_reset_adapter(dev);
|
| 346 |
|
|
if(err < 0)
|
| 347 |
|
|
return (-1);
|
| 348 |
|
|
|
| 349 |
|
|
if(tms380tr_debug > 3)
|
| 350 |
|
|
printk(KERN_INFO "%s: Bringup diags...\n", dev->name);
|
| 351 |
|
|
err = tms380tr_bringup_diags(dev);
|
| 352 |
|
|
if(err < 0)
|
| 353 |
|
|
return (-1);
|
| 354 |
|
|
|
| 355 |
|
|
if(tms380tr_debug > 3)
|
| 356 |
|
|
printk(KERN_INFO "%s: Init adapter...\n", dev->name);
|
| 357 |
|
|
err = tms380tr_init_adapter(dev);
|
| 358 |
|
|
if(err < 0)
|
| 359 |
|
|
return (-1);
|
| 360 |
|
|
|
| 361 |
|
|
if(tms380tr_debug > 3)
|
| 362 |
|
|
printk(KERN_INFO "%s: Done!\n", dev->name);
|
| 363 |
|
|
return (0);
|
| 364 |
|
|
}
|
| 365 |
|
|
|
| 366 |
|
|
/*
|
| 367 |
|
|
* Initializes the net_local structure.
|
| 368 |
|
|
*/
|
| 369 |
|
|
static void tms380tr_init_net_local(struct net_device *dev)
|
| 370 |
|
|
{
|
| 371 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 372 |
|
|
int i;
|
| 373 |
|
|
dma_addr_t dmabuf;
|
| 374 |
|
|
|
| 375 |
|
|
tp->scb.CMD = 0;
|
| 376 |
|
|
tp->scb.Parm[0] = 0;
|
| 377 |
|
|
tp->scb.Parm[1] = 0;
|
| 378 |
|
|
|
| 379 |
|
|
tp->ssb.STS = 0;
|
| 380 |
|
|
tp->ssb.Parm[0] = 0;
|
| 381 |
|
|
tp->ssb.Parm[1] = 0;
|
| 382 |
|
|
tp->ssb.Parm[2] = 0;
|
| 383 |
|
|
|
| 384 |
|
|
tp->CMDqueue = 0;
|
| 385 |
|
|
|
| 386 |
|
|
tp->AdapterOpenFlag = 0;
|
| 387 |
|
|
tp->AdapterVirtOpenFlag = 0;
|
| 388 |
|
|
tp->ScbInUse = 0;
|
| 389 |
|
|
tp->OpenCommandIssued = 0;
|
| 390 |
|
|
tp->ReOpenInProgress = 0;
|
| 391 |
|
|
tp->HaltInProgress = 0;
|
| 392 |
|
|
tp->TransmitHaltScheduled = 0;
|
| 393 |
|
|
tp->LobeWireFaultLogged = 0;
|
| 394 |
|
|
tp->LastOpenStatus = 0;
|
| 395 |
|
|
tp->MaxPacketSize = DEFAULT_PACKET_SIZE;
|
| 396 |
|
|
|
| 397 |
|
|
skb_queue_head_init(&tp->SendSkbQueue);
|
| 398 |
|
|
tp->QueueSkb = MAX_TX_QUEUE;
|
| 399 |
|
|
|
| 400 |
|
|
/* Create circular chain of transmit lists */
|
| 401 |
|
|
for (i = 0; i < TPL_NUM; i++)
|
| 402 |
|
|
{
|
| 403 |
|
|
tp->Tpl[i].NextTPLAddr = htonl(((char *)(&tp->Tpl[(i+1) % TPL_NUM]) - (char *)tp) + tp->dmabuffer); /* DMA buffer may be MMU driven */
|
| 404 |
|
|
tp->Tpl[i].Status = 0;
|
| 405 |
|
|
tp->Tpl[i].FrameSize = 0;
|
| 406 |
|
|
tp->Tpl[i].FragList[0].DataCount = 0;
|
| 407 |
|
|
tp->Tpl[i].FragList[0].DataAddr = 0;
|
| 408 |
|
|
tp->Tpl[i].NextTPLPtr = &tp->Tpl[(i+1) % TPL_NUM];
|
| 409 |
|
|
tp->Tpl[i].MData = NULL;
|
| 410 |
|
|
tp->Tpl[i].TPLIndex = i;
|
| 411 |
|
|
tp->Tpl[i].DMABuff = 0;
|
| 412 |
|
|
tp->Tpl[i].BusyFlag = 0;
|
| 413 |
|
|
}
|
| 414 |
|
|
|
| 415 |
|
|
tp->TplFree = tp->TplBusy = &tp->Tpl[0];
|
| 416 |
|
|
|
| 417 |
|
|
/* Create circular chain of receive lists */
|
| 418 |
|
|
for (i = 0; i < RPL_NUM; i++)
|
| 419 |
|
|
{
|
| 420 |
|
|
tp->Rpl[i].NextRPLAddr = htonl(((char *)(&tp->Rpl[(i+1) % RPL_NUM]) - (char *)tp) + tp->dmabuffer); /* DMA buffer may be MMU driven */
|
| 421 |
|
|
tp->Rpl[i].Status = (RX_VALID | RX_START_FRAME | RX_END_FRAME | RX_FRAME_IRQ);
|
| 422 |
|
|
tp->Rpl[i].FrameSize = 0;
|
| 423 |
|
|
tp->Rpl[i].FragList[0].DataCount = cpu_to_be16((unsigned short)tp->MaxPacketSize);
|
| 424 |
|
|
|
| 425 |
|
|
/* Alloc skb and point adapter to data area */
|
| 426 |
|
|
tp->Rpl[i].Skb = dev_alloc_skb(tp->MaxPacketSize);
|
| 427 |
|
|
tp->Rpl[i].DMABuff = 0;
|
| 428 |
|
|
|
| 429 |
|
|
/* skb == NULL ? then use local buffer */
|
| 430 |
|
|
if(tp->Rpl[i].Skb == NULL)
|
| 431 |
|
|
{
|
| 432 |
|
|
tp->Rpl[i].SkbStat = SKB_UNAVAILABLE;
|
| 433 |
|
|
tp->Rpl[i].FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[i] - (char *)tp) + tp->dmabuffer);
|
| 434 |
|
|
tp->Rpl[i].MData = tp->LocalRxBuffers[i];
|
| 435 |
|
|
}
|
| 436 |
|
|
else /* SKB != NULL */
|
| 437 |
|
|
{
|
| 438 |
|
|
tp->Rpl[i].Skb->dev = dev;
|
| 439 |
|
|
skb_put(tp->Rpl[i].Skb, tp->MaxPacketSize);
|
| 440 |
|
|
|
| 441 |
|
|
/* data unreachable for DMA ? then use local buffer */
|
| 442 |
|
|
dmabuf = pci_map_single(tp->pdev, tp->Rpl[i].Skb->data, tp->MaxPacketSize, PCI_DMA_FROMDEVICE);
|
| 443 |
|
|
if(tp->dmalimit && (dmabuf + tp->MaxPacketSize > tp->dmalimit))
|
| 444 |
|
|
{
|
| 445 |
|
|
tp->Rpl[i].SkbStat = SKB_DATA_COPY;
|
| 446 |
|
|
tp->Rpl[i].FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[i] - (char *)tp) + tp->dmabuffer);
|
| 447 |
|
|
tp->Rpl[i].MData = tp->LocalRxBuffers[i];
|
| 448 |
|
|
}
|
| 449 |
|
|
else /* DMA directly in skb->data */
|
| 450 |
|
|
{
|
| 451 |
|
|
tp->Rpl[i].SkbStat = SKB_DMA_DIRECT;
|
| 452 |
|
|
tp->Rpl[i].FragList[0].DataAddr = htonl(dmabuf);
|
| 453 |
|
|
tp->Rpl[i].MData = tp->Rpl[i].Skb->data;
|
| 454 |
|
|
tp->Rpl[i].DMABuff = dmabuf;
|
| 455 |
|
|
}
|
| 456 |
|
|
}
|
| 457 |
|
|
|
| 458 |
|
|
tp->Rpl[i].NextRPLPtr = &tp->Rpl[(i+1) % RPL_NUM];
|
| 459 |
|
|
tp->Rpl[i].RPLIndex = i;
|
| 460 |
|
|
}
|
| 461 |
|
|
|
| 462 |
|
|
tp->RplHead = &tp->Rpl[0];
|
| 463 |
|
|
tp->RplTail = &tp->Rpl[RPL_NUM-1];
|
| 464 |
|
|
tp->RplTail->Status = (RX_START_FRAME | RX_END_FRAME | RX_FRAME_IRQ);
|
| 465 |
|
|
|
| 466 |
|
|
return;
|
| 467 |
|
|
}
|
| 468 |
|
|
|
| 469 |
|
|
/*
|
| 470 |
|
|
* Initializes the initialisation parameter block.
|
| 471 |
|
|
*/
|
| 472 |
|
|
static void tms380tr_init_ipb(struct net_local *tp)
|
| 473 |
|
|
{
|
| 474 |
|
|
tp->ipb.Init_Options = BURST_MODE;
|
| 475 |
|
|
tp->ipb.CMD_Status_IV = 0;
|
| 476 |
|
|
tp->ipb.TX_IV = 0;
|
| 477 |
|
|
tp->ipb.RX_IV = 0;
|
| 478 |
|
|
tp->ipb.Ring_Status_IV = 0;
|
| 479 |
|
|
tp->ipb.SCB_Clear_IV = 0;
|
| 480 |
|
|
tp->ipb.Adapter_CHK_IV = 0;
|
| 481 |
|
|
tp->ipb.RX_Burst_Size = BURST_SIZE;
|
| 482 |
|
|
tp->ipb.TX_Burst_Size = BURST_SIZE;
|
| 483 |
|
|
tp->ipb.DMA_Abort_Thrhld = DMA_RETRIES;
|
| 484 |
|
|
tp->ipb.SCB_Addr = 0;
|
| 485 |
|
|
tp->ipb.SSB_Addr = 0;
|
| 486 |
|
|
|
| 487 |
|
|
return;
|
| 488 |
|
|
}
|
| 489 |
|
|
|
| 490 |
|
|
/*
|
| 491 |
|
|
* Initializes the open parameter block.
|
| 492 |
|
|
*/
|
| 493 |
|
|
static void tms380tr_init_opb(struct net_device *dev)
|
| 494 |
|
|
{
|
| 495 |
|
|
struct net_local *tp;
|
| 496 |
|
|
unsigned long Addr;
|
| 497 |
|
|
unsigned short RplSize = RPL_SIZE;
|
| 498 |
|
|
unsigned short TplSize = TPL_SIZE;
|
| 499 |
|
|
unsigned short BufferSize = BUFFER_SIZE;
|
| 500 |
|
|
int i;
|
| 501 |
|
|
|
| 502 |
|
|
tp = (struct net_local *)dev->priv;
|
| 503 |
|
|
|
| 504 |
|
|
tp->ocpl.OPENOptions = 0;
|
| 505 |
|
|
tp->ocpl.OPENOptions |= ENABLE_FULL_DUPLEX_SELECTION;
|
| 506 |
|
|
tp->ocpl.FullDuplex = 0;
|
| 507 |
|
|
tp->ocpl.FullDuplex |= OPEN_FULL_DUPLEX_OFF;
|
| 508 |
|
|
|
| 509 |
|
|
/*
|
| 510 |
|
|
* Set node address
|
| 511 |
|
|
*
|
| 512 |
|
|
* We go ahead and put it in the OPB even though on
|
| 513 |
|
|
* most of the generic adapters this isn't required.
|
| 514 |
|
|
* Its simpler this way. -- ASF
|
| 515 |
|
|
*/
|
| 516 |
|
|
for (i=0;i<6;i++)
|
| 517 |
|
|
tp->ocpl.NodeAddr[i] = ((unsigned char *)dev->dev_addr)[i];
|
| 518 |
|
|
|
| 519 |
|
|
tp->ocpl.GroupAddr = 0;
|
| 520 |
|
|
tp->ocpl.FunctAddr = 0;
|
| 521 |
|
|
tp->ocpl.RxListSize = cpu_to_be16((unsigned short)RplSize);
|
| 522 |
|
|
tp->ocpl.TxListSize = cpu_to_be16((unsigned short)TplSize);
|
| 523 |
|
|
tp->ocpl.BufSize = cpu_to_be16((unsigned short)BufferSize);
|
| 524 |
|
|
tp->ocpl.Reserved = 0;
|
| 525 |
|
|
tp->ocpl.TXBufMin = TX_BUF_MIN;
|
| 526 |
|
|
tp->ocpl.TXBufMax = TX_BUF_MAX;
|
| 527 |
|
|
|
| 528 |
|
|
Addr = htonl(((char *)tp->ProductID - (char *)tp) + tp->dmabuffer);
|
| 529 |
|
|
|
| 530 |
|
|
tp->ocpl.ProdIDAddr[0] = LOWORD(Addr);
|
| 531 |
|
|
tp->ocpl.ProdIDAddr[1] = HIWORD(Addr);
|
| 532 |
|
|
|
| 533 |
|
|
return;
|
| 534 |
|
|
}
|
| 535 |
|
|
|
| 536 |
|
|
/*
|
| 537 |
|
|
* Send OPEN command to adapter
|
| 538 |
|
|
*/
|
| 539 |
|
|
static void tms380tr_open_adapter(struct net_device *dev)
|
| 540 |
|
|
{
|
| 541 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 542 |
|
|
|
| 543 |
|
|
if(tp->OpenCommandIssued)
|
| 544 |
|
|
return;
|
| 545 |
|
|
|
| 546 |
|
|
tp->OpenCommandIssued = 1;
|
| 547 |
|
|
tms380tr_exec_cmd(dev, OC_OPEN);
|
| 548 |
|
|
|
| 549 |
|
|
return;
|
| 550 |
|
|
}
|
| 551 |
|
|
|
| 552 |
|
|
/*
|
| 553 |
|
|
* Clear the adapter's interrupt flag. Clear system interrupt enable
|
| 554 |
|
|
* (SINTEN): disable adapter to system interrupts.
|
| 555 |
|
|
*/
|
| 556 |
|
|
static void tms380tr_disable_interrupts(struct net_device *dev)
|
| 557 |
|
|
{
|
| 558 |
|
|
SIFWRITEB(0, SIFACL);
|
| 559 |
|
|
|
| 560 |
|
|
return;
|
| 561 |
|
|
}
|
| 562 |
|
|
|
| 563 |
|
|
/*
|
| 564 |
|
|
* Set the adapter's interrupt flag. Set system interrupt enable
|
| 565 |
|
|
* (SINTEN): enable adapter to system interrupts.
|
| 566 |
|
|
*/
|
| 567 |
|
|
static void tms380tr_enable_interrupts(struct net_device *dev)
|
| 568 |
|
|
{
|
| 569 |
|
|
SIFWRITEB(ACL_SINTEN, SIFACL);
|
| 570 |
|
|
|
| 571 |
|
|
return;
|
| 572 |
|
|
}
|
| 573 |
|
|
|
| 574 |
|
|
/*
|
| 575 |
|
|
* Put command in command queue, try to execute it.
|
| 576 |
|
|
*/
|
| 577 |
|
|
static void tms380tr_exec_cmd(struct net_device *dev, unsigned short Command)
|
| 578 |
|
|
{
|
| 579 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 580 |
|
|
|
| 581 |
|
|
tp->CMDqueue |= Command;
|
| 582 |
|
|
tms380tr_chk_outstanding_cmds(dev);
|
| 583 |
|
|
|
| 584 |
|
|
return;
|
| 585 |
|
|
}
|
| 586 |
|
|
|
| 587 |
|
|
static void tms380tr_timeout(struct net_device *dev)
|
| 588 |
|
|
{
|
| 589 |
|
|
/*
|
| 590 |
|
|
* If we get here, some higher level has decided we are broken.
|
| 591 |
|
|
* There should really be a "kick me" function call instead.
|
| 592 |
|
|
*
|
| 593 |
|
|
* Resetting the token ring adapter takes a long time so just
|
| 594 |
|
|
* fake transmission time and go on trying. Our own timeout
|
| 595 |
|
|
* routine is in tms380tr_timer_chk()
|
| 596 |
|
|
*/
|
| 597 |
|
|
dev->trans_start = jiffies;
|
| 598 |
|
|
netif_wake_queue(dev);
|
| 599 |
|
|
}
|
| 600 |
|
|
|
| 601 |
|
|
/*
|
| 602 |
|
|
* Gets skb from system, queues it and checks if it can be sent
|
| 603 |
|
|
*/
|
| 604 |
|
|
static int tms380tr_send_packet(struct sk_buff *skb, struct net_device *dev)
|
| 605 |
|
|
{
|
| 606 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 607 |
|
|
|
| 608 |
|
|
/*
|
| 609 |
|
|
* Block transmits from overlapping.
|
| 610 |
|
|
*/
|
| 611 |
|
|
|
| 612 |
|
|
netif_stop_queue(dev);
|
| 613 |
|
|
|
| 614 |
|
|
if(tp->QueueSkb == 0)
|
| 615 |
|
|
return (1); /* Return with tbusy set: queue full */
|
| 616 |
|
|
|
| 617 |
|
|
tp->QueueSkb--;
|
| 618 |
|
|
skb_queue_tail(&tp->SendSkbQueue, skb);
|
| 619 |
|
|
tms380tr_hardware_send_packet(dev, tp);
|
| 620 |
|
|
if(tp->QueueSkb > 0)
|
| 621 |
|
|
netif_wake_queue(dev);
|
| 622 |
|
|
return (0);
|
| 623 |
|
|
}
|
| 624 |
|
|
|
| 625 |
|
|
/*
|
| 626 |
|
|
* Move frames from internal skb queue into adapter tx queue
|
| 627 |
|
|
*/
|
| 628 |
|
|
static void tms380tr_hardware_send_packet(struct net_device *dev, struct net_local* tp)
|
| 629 |
|
|
{
|
| 630 |
|
|
TPL *tpl;
|
| 631 |
|
|
short length;
|
| 632 |
|
|
unsigned char *buf;
|
| 633 |
|
|
struct sk_buff *skb;
|
| 634 |
|
|
int i;
|
| 635 |
|
|
dma_addr_t dmabuf, newbuf;
|
| 636 |
|
|
|
| 637 |
|
|
for(;;)
|
| 638 |
|
|
{
|
| 639 |
|
|
/* Try to get a free TPL from the chain.
|
| 640 |
|
|
*
|
| 641 |
|
|
* NOTE: We *must* always leave one unused TPL in the chain,
|
| 642 |
|
|
* because otherwise the adapter might send frames twice.
|
| 643 |
|
|
*/
|
| 644 |
|
|
if(tp->TplFree->NextTPLPtr->BusyFlag) /* No free TPL */
|
| 645 |
|
|
{
|
| 646 |
|
|
if (tms380tr_debug > 0)
|
| 647 |
|
|
printk(KERN_INFO "%s: No free TPL\n", dev->name);
|
| 648 |
|
|
return;
|
| 649 |
|
|
}
|
| 650 |
|
|
|
| 651 |
|
|
/* Send first buffer from queue */
|
| 652 |
|
|
skb = skb_dequeue(&tp->SendSkbQueue);
|
| 653 |
|
|
if(skb == NULL)
|
| 654 |
|
|
return;
|
| 655 |
|
|
|
| 656 |
|
|
tp->QueueSkb++;
|
| 657 |
|
|
dmabuf = 0;
|
| 658 |
|
|
|
| 659 |
|
|
/* Is buffer reachable for Busmaster-DMA? */
|
| 660 |
|
|
|
| 661 |
|
|
length = skb->len;
|
| 662 |
|
|
dmabuf = pci_map_single(tp->pdev, skb->data, length, PCI_DMA_TODEVICE);
|
| 663 |
|
|
if(tp->dmalimit && (dmabuf + length > tp->dmalimit))
|
| 664 |
|
|
{
|
| 665 |
|
|
/* Copy frame to local buffer */
|
| 666 |
|
|
pci_unmap_single(tp->pdev, dmabuf, length, PCI_DMA_TODEVICE);
|
| 667 |
|
|
dmabuf = 0;
|
| 668 |
|
|
i = tp->TplFree->TPLIndex;
|
| 669 |
|
|
buf = tp->LocalTxBuffers[i];
|
| 670 |
|
|
memcpy(buf, skb->data, length);
|
| 671 |
|
|
newbuf = ((char *)buf - (char *)tp) + tp->dmabuffer;
|
| 672 |
|
|
}
|
| 673 |
|
|
else
|
| 674 |
|
|
{
|
| 675 |
|
|
/* Send direct from skb->data */
|
| 676 |
|
|
newbuf = dmabuf;
|
| 677 |
|
|
buf = skb->data;
|
| 678 |
|
|
}
|
| 679 |
|
|
/* Source address in packet? */
|
| 680 |
|
|
tms380tr_chk_src_addr(buf, dev->dev_addr);
|
| 681 |
|
|
tp->LastSendTime = jiffies;
|
| 682 |
|
|
tpl = tp->TplFree; /* Get the "free" TPL */
|
| 683 |
|
|
tpl->BusyFlag = 1; /* Mark TPL as busy */
|
| 684 |
|
|
tp->TplFree = tpl->NextTPLPtr;
|
| 685 |
|
|
|
| 686 |
|
|
/* Save the skb for delayed return of skb to system */
|
| 687 |
|
|
tpl->Skb = skb;
|
| 688 |
|
|
tpl->DMABuff = dmabuf;
|
| 689 |
|
|
tpl->FragList[0].DataCount = cpu_to_be16((unsigned short)length);
|
| 690 |
|
|
tpl->FragList[0].DataAddr = htonl(newbuf);
|
| 691 |
|
|
|
| 692 |
|
|
/* Write the data length in the transmit list. */
|
| 693 |
|
|
tpl->FrameSize = cpu_to_be16((unsigned short)length);
|
| 694 |
|
|
tpl->MData = buf;
|
| 695 |
|
|
|
| 696 |
|
|
/* Transmit the frame and set the status values. */
|
| 697 |
|
|
tms380tr_write_tpl_status(tpl, TX_VALID | TX_START_FRAME
|
| 698 |
|
|
| TX_END_FRAME | TX_PASS_SRC_ADDR
|
| 699 |
|
|
| TX_FRAME_IRQ);
|
| 700 |
|
|
|
| 701 |
|
|
/* Let adapter send the frame. */
|
| 702 |
|
|
tms380tr_exec_sifcmd(dev, CMD_TX_VALID);
|
| 703 |
|
|
}
|
| 704 |
|
|
|
| 705 |
|
|
return;
|
| 706 |
|
|
}
|
| 707 |
|
|
|
| 708 |
|
|
/*
|
| 709 |
|
|
* Write the given value to the 'Status' field of the specified TPL.
|
| 710 |
|
|
* NOTE: This function should be used whenever the status of any TPL must be
|
| 711 |
|
|
* modified by the driver, because the compiler may otherwise change the
|
| 712 |
|
|
* order of instructions such that writing the TPL status may be executed at
|
| 713 |
|
|
* an undesireable time. When this function is used, the status is always
|
| 714 |
|
|
* written when the function is called.
|
| 715 |
|
|
*/
|
| 716 |
|
|
static void tms380tr_write_tpl_status(TPL *tpl, unsigned int Status)
|
| 717 |
|
|
{
|
| 718 |
|
|
tpl->Status = Status;
|
| 719 |
|
|
}
|
| 720 |
|
|
|
| 721 |
|
|
static void tms380tr_chk_src_addr(unsigned char *frame, unsigned char *hw_addr)
|
| 722 |
|
|
{
|
| 723 |
|
|
unsigned char SRBit;
|
| 724 |
|
|
|
| 725 |
|
|
if((((unsigned long)frame[8]) & ~0x80) != 0) /* Compare 4 bytes */
|
| 726 |
|
|
return;
|
| 727 |
|
|
if((unsigned short)frame[12] != 0) /* Compare 2 bytes */
|
| 728 |
|
|
return;
|
| 729 |
|
|
|
| 730 |
|
|
SRBit = frame[8] & 0x80;
|
| 731 |
|
|
memcpy(&frame[8], hw_addr, 6);
|
| 732 |
|
|
frame[8] |= SRBit;
|
| 733 |
|
|
|
| 734 |
|
|
return;
|
| 735 |
|
|
}
|
| 736 |
|
|
|
| 737 |
|
|
/*
|
| 738 |
|
|
* The timer routine: Check if adapter still open and working, reopen if not.
|
| 739 |
|
|
*/
|
| 740 |
|
|
static void tms380tr_timer_chk(unsigned long data)
|
| 741 |
|
|
{
|
| 742 |
|
|
struct net_device *dev = (struct net_device*)data;
|
| 743 |
|
|
struct net_local *tp = (struct net_local*)dev->priv;
|
| 744 |
|
|
|
| 745 |
|
|
if(tp->HaltInProgress)
|
| 746 |
|
|
return;
|
| 747 |
|
|
|
| 748 |
|
|
tms380tr_chk_outstanding_cmds(dev);
|
| 749 |
|
|
if(time_before(tp->LastSendTime + SEND_TIMEOUT, jiffies)
|
| 750 |
|
|
&& (tp->QueueSkb < MAX_TX_QUEUE || tp->TplFree != tp->TplBusy))
|
| 751 |
|
|
{
|
| 752 |
|
|
/* Anything to send, but stalled to long */
|
| 753 |
|
|
tp->LastSendTime = jiffies;
|
| 754 |
|
|
tms380tr_exec_cmd(dev, OC_CLOSE); /* Does reopen automatically */
|
| 755 |
|
|
}
|
| 756 |
|
|
|
| 757 |
|
|
tp->timer.expires = jiffies + 2*HZ;
|
| 758 |
|
|
add_timer(&tp->timer);
|
| 759 |
|
|
|
| 760 |
|
|
if(tp->AdapterOpenFlag || tp->ReOpenInProgress)
|
| 761 |
|
|
return;
|
| 762 |
|
|
tp->ReOpenInProgress = 1;
|
| 763 |
|
|
tms380tr_open_adapter(dev);
|
| 764 |
|
|
|
| 765 |
|
|
return;
|
| 766 |
|
|
}
|
| 767 |
|
|
|
| 768 |
|
|
/*
|
| 769 |
|
|
* The typical workload of the driver: Handle the network interface interrupts.
|
| 770 |
|
|
*/
|
| 771 |
|
|
void tms380tr_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
| 772 |
|
|
{
|
| 773 |
|
|
struct net_device *dev = dev_id;
|
| 774 |
|
|
struct net_local *tp;
|
| 775 |
|
|
unsigned short irq_type;
|
| 776 |
|
|
|
| 777 |
|
|
if(dev == NULL) {
|
| 778 |
|
|
printk("%s: irq %d for unknown device.\n", dev->name, irq);
|
| 779 |
|
|
return;
|
| 780 |
|
|
}
|
| 781 |
|
|
|
| 782 |
|
|
tp = (struct net_local *)dev->priv;
|
| 783 |
|
|
|
| 784 |
|
|
irq_type = SIFREADW(SIFSTS);
|
| 785 |
|
|
|
| 786 |
|
|
while(irq_type & STS_SYSTEM_IRQ) {
|
| 787 |
|
|
irq_type &= STS_IRQ_MASK;
|
| 788 |
|
|
|
| 789 |
|
|
if(!tms380tr_chk_ssb(tp, irq_type)) {
|
| 790 |
|
|
printk(KERN_INFO "%s: DATA LATE occurred\n", dev->name);
|
| 791 |
|
|
break;
|
| 792 |
|
|
}
|
| 793 |
|
|
|
| 794 |
|
|
switch(irq_type) {
|
| 795 |
|
|
case STS_IRQ_RECEIVE_STATUS:
|
| 796 |
|
|
tms380tr_reset_interrupt(dev);
|
| 797 |
|
|
tms380tr_rcv_status_irq(dev);
|
| 798 |
|
|
break;
|
| 799 |
|
|
|
| 800 |
|
|
case STS_IRQ_TRANSMIT_STATUS:
|
| 801 |
|
|
/* Check if TRANSMIT.HALT command is complete */
|
| 802 |
|
|
if(tp->ssb.Parm[0] & COMMAND_COMPLETE) {
|
| 803 |
|
|
tp->TransmitCommandActive = 0;
|
| 804 |
|
|
tp->TransmitHaltScheduled = 0;
|
| 805 |
|
|
|
| 806 |
|
|
/* Issue a new transmit command. */
|
| 807 |
|
|
tms380tr_exec_cmd(dev, OC_TRANSMIT);
|
| 808 |
|
|
}
|
| 809 |
|
|
|
| 810 |
|
|
tms380tr_reset_interrupt(dev);
|
| 811 |
|
|
tms380tr_tx_status_irq(dev);
|
| 812 |
|
|
break;
|
| 813 |
|
|
|
| 814 |
|
|
case STS_IRQ_COMMAND_STATUS:
|
| 815 |
|
|
/* The SSB contains status of last command
|
| 816 |
|
|
* other than receive/transmit.
|
| 817 |
|
|
*/
|
| 818 |
|
|
tms380tr_cmd_status_irq(dev);
|
| 819 |
|
|
break;
|
| 820 |
|
|
|
| 821 |
|
|
case STS_IRQ_SCB_CLEAR:
|
| 822 |
|
|
/* The SCB is free for another command. */
|
| 823 |
|
|
tp->ScbInUse = 0;
|
| 824 |
|
|
tms380tr_chk_outstanding_cmds(dev);
|
| 825 |
|
|
break;
|
| 826 |
|
|
|
| 827 |
|
|
case STS_IRQ_RING_STATUS:
|
| 828 |
|
|
tms380tr_ring_status_irq(dev);
|
| 829 |
|
|
break;
|
| 830 |
|
|
|
| 831 |
|
|
case STS_IRQ_ADAPTER_CHECK:
|
| 832 |
|
|
tms380tr_chk_irq(dev);
|
| 833 |
|
|
break;
|
| 834 |
|
|
|
| 835 |
|
|
case STS_IRQ_LLC_STATUS:
|
| 836 |
|
|
printk(KERN_DEBUG "tms380tr: unexpected LLC status IRQ\n");
|
| 837 |
|
|
break;
|
| 838 |
|
|
|
| 839 |
|
|
case STS_IRQ_TIMER:
|
| 840 |
|
|
printk(KERN_DEBUG "tms380tr: unexpected Timer IRQ\n");
|
| 841 |
|
|
break;
|
| 842 |
|
|
|
| 843 |
|
|
case STS_IRQ_RECEIVE_PENDING:
|
| 844 |
|
|
printk(KERN_DEBUG "tms380tr: unexpected Receive Pending IRQ\n");
|
| 845 |
|
|
break;
|
| 846 |
|
|
|
| 847 |
|
|
default:
|
| 848 |
|
|
printk(KERN_INFO "Unknown Token Ring IRQ (0x%04x)\n", irq_type);
|
| 849 |
|
|
break;
|
| 850 |
|
|
}
|
| 851 |
|
|
|
| 852 |
|
|
/* Reset system interrupt if not already done. */
|
| 853 |
|
|
if(irq_type != STS_IRQ_TRANSMIT_STATUS
|
| 854 |
|
|
&& irq_type != STS_IRQ_RECEIVE_STATUS) {
|
| 855 |
|
|
tms380tr_reset_interrupt(dev);
|
| 856 |
|
|
}
|
| 857 |
|
|
|
| 858 |
|
|
irq_type = SIFREADW(SIFSTS);
|
| 859 |
|
|
}
|
| 860 |
|
|
|
| 861 |
|
|
return;
|
| 862 |
|
|
}
|
| 863 |
|
|
|
| 864 |
|
|
/*
|
| 865 |
|
|
* Reset the INTERRUPT SYSTEM bit and issue SSB CLEAR command.
|
| 866 |
|
|
*/
|
| 867 |
|
|
static void tms380tr_reset_interrupt(struct net_device *dev)
|
| 868 |
|
|
{
|
| 869 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 870 |
|
|
SSB *ssb = &tp->ssb;
|
| 871 |
|
|
|
| 872 |
|
|
/*
|
| 873 |
|
|
* [Workaround for "Data Late"]
|
| 874 |
|
|
* Set all fields of the SSB to well-defined values so we can
|
| 875 |
|
|
* check if the adapter has written the SSB.
|
| 876 |
|
|
*/
|
| 877 |
|
|
|
| 878 |
|
|
ssb->STS = (unsigned short) -1;
|
| 879 |
|
|
ssb->Parm[0] = (unsigned short) -1;
|
| 880 |
|
|
ssb->Parm[1] = (unsigned short) -1;
|
| 881 |
|
|
ssb->Parm[2] = (unsigned short) -1;
|
| 882 |
|
|
|
| 883 |
|
|
/* Free SSB by issuing SSB_CLEAR command after reading IRQ code
|
| 884 |
|
|
* and clear STS_SYSTEM_IRQ bit: enable adapter for further interrupts.
|
| 885 |
|
|
*/
|
| 886 |
|
|
tms380tr_exec_sifcmd(dev, CMD_SSB_CLEAR | CMD_CLEAR_SYSTEM_IRQ);
|
| 887 |
|
|
|
| 888 |
|
|
return;
|
| 889 |
|
|
}
|
| 890 |
|
|
|
| 891 |
|
|
/*
|
| 892 |
|
|
* Check if the SSB has actually been written by the adapter.
|
| 893 |
|
|
*/
|
| 894 |
|
|
static unsigned char tms380tr_chk_ssb(struct net_local *tp, unsigned short IrqType)
|
| 895 |
|
|
{
|
| 896 |
|
|
SSB *ssb = &tp->ssb; /* The address of the SSB. */
|
| 897 |
|
|
|
| 898 |
|
|
/* C 0 1 2 INTERRUPT CODE
|
| 899 |
|
|
* - - - - --------------
|
| 900 |
|
|
* 1 1 1 1 TRANSMIT STATUS
|
| 901 |
|
|
* 1 1 1 1 RECEIVE STATUS
|
| 902 |
|
|
* 1 ? ? 0 COMMAND STATUS
|
| 903 |
|
|
* 0 0 0 0 SCB CLEAR
|
| 904 |
|
|
* 1 1 0 0 RING STATUS
|
| 905 |
|
|
* 0 0 0 0 ADAPTER CHECK
|
| 906 |
|
|
*
|
| 907 |
|
|
* 0 = SSB field not affected by interrupt
|
| 908 |
|
|
* 1 = SSB field is affected by interrupt
|
| 909 |
|
|
*
|
| 910 |
|
|
* C = SSB ADDRESS +0: COMMAND
|
| 911 |
|
|
* 0 = SSB ADDRESS +2: STATUS 0
|
| 912 |
|
|
* 1 = SSB ADDRESS +4: STATUS 1
|
| 913 |
|
|
* 2 = SSB ADDRESS +6: STATUS 2
|
| 914 |
|
|
*/
|
| 915 |
|
|
|
| 916 |
|
|
/* Check if this interrupt does use the SSB. */
|
| 917 |
|
|
|
| 918 |
|
|
if(IrqType != STS_IRQ_TRANSMIT_STATUS
|
| 919 |
|
|
&& IrqType != STS_IRQ_RECEIVE_STATUS
|
| 920 |
|
|
&& IrqType != STS_IRQ_COMMAND_STATUS
|
| 921 |
|
|
&& IrqType != STS_IRQ_RING_STATUS)
|
| 922 |
|
|
{
|
| 923 |
|
|
return (1); /* SSB not involved. */
|
| 924 |
|
|
}
|
| 925 |
|
|
|
| 926 |
|
|
/* Note: All fields of the SSB have been set to all ones (-1) after it
|
| 927 |
|
|
* has last been used by the software (see DriverIsr()).
|
| 928 |
|
|
*
|
| 929 |
|
|
* Check if the affected SSB fields are still unchanged.
|
| 930 |
|
|
*/
|
| 931 |
|
|
|
| 932 |
|
|
if(ssb->STS == (unsigned short) -1)
|
| 933 |
|
|
return (0); /* Command field not yet available. */
|
| 934 |
|
|
if(IrqType == STS_IRQ_COMMAND_STATUS)
|
| 935 |
|
|
return (1); /* Status fields not always affected. */
|
| 936 |
|
|
if(ssb->Parm[0] == (unsigned short) -1)
|
| 937 |
|
|
return (0); /* Status 1 field not yet available. */
|
| 938 |
|
|
if(IrqType == STS_IRQ_RING_STATUS)
|
| 939 |
|
|
return (1); /* Status 2 & 3 fields not affected. */
|
| 940 |
|
|
|
| 941 |
|
|
/* Note: At this point, the interrupt is either TRANSMIT or RECEIVE. */
|
| 942 |
|
|
if(ssb->Parm[1] == (unsigned short) -1)
|
| 943 |
|
|
return (0); /* Status 2 field not yet available. */
|
| 944 |
|
|
if(ssb->Parm[2] == (unsigned short) -1)
|
| 945 |
|
|
return (0); /* Status 3 field not yet available. */
|
| 946 |
|
|
|
| 947 |
|
|
return (1); /* All SSB fields have been written by the adapter. */
|
| 948 |
|
|
}
|
| 949 |
|
|
|
| 950 |
|
|
/*
|
| 951 |
|
|
* Evaluates the command results status in the SSB status field.
|
| 952 |
|
|
*/
|
| 953 |
|
|
static void tms380tr_cmd_status_irq(struct net_device *dev)
|
| 954 |
|
|
{
|
| 955 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 956 |
|
|
unsigned short ssb_cmd, ssb_parm_0;
|
| 957 |
|
|
unsigned short ssb_parm_1;
|
| 958 |
|
|
char *open_err = "Open error -";
|
| 959 |
|
|
char *code_err = "Open code -";
|
| 960 |
|
|
|
| 961 |
|
|
/* Copy the ssb values to local variables */
|
| 962 |
|
|
ssb_cmd = tp->ssb.STS;
|
| 963 |
|
|
ssb_parm_0 = tp->ssb.Parm[0];
|
| 964 |
|
|
ssb_parm_1 = tp->ssb.Parm[1];
|
| 965 |
|
|
|
| 966 |
|
|
if(ssb_cmd == OPEN)
|
| 967 |
|
|
{
|
| 968 |
|
|
tp->Sleeping = 0;
|
| 969 |
|
|
if(!tp->ReOpenInProgress)
|
| 970 |
|
|
wake_up_interruptible(&tp->wait_for_tok_int);
|
| 971 |
|
|
|
| 972 |
|
|
tp->OpenCommandIssued = 0;
|
| 973 |
|
|
tp->ScbInUse = 0;
|
| 974 |
|
|
|
| 975 |
|
|
if((ssb_parm_0 & 0x00FF) == GOOD_COMPLETION)
|
| 976 |
|
|
{
|
| 977 |
|
|
/* Success, the adapter is open. */
|
| 978 |
|
|
tp->LobeWireFaultLogged = 0;
|
| 979 |
|
|
tp->AdapterOpenFlag = 1;
|
| 980 |
|
|
tp->AdapterVirtOpenFlag = 1;
|
| 981 |
|
|
tp->TransmitCommandActive = 0;
|
| 982 |
|
|
tms380tr_exec_cmd(dev, OC_TRANSMIT);
|
| 983 |
|
|
tms380tr_exec_cmd(dev, OC_RECEIVE);
|
| 984 |
|
|
|
| 985 |
|
|
if(tp->ReOpenInProgress)
|
| 986 |
|
|
tp->ReOpenInProgress = 0;
|
| 987 |
|
|
|
| 988 |
|
|
return;
|
| 989 |
|
|
}
|
| 990 |
|
|
else /* The adapter did not open. */
|
| 991 |
|
|
{
|
| 992 |
|
|
if(ssb_parm_0 & NODE_ADDR_ERROR)
|
| 993 |
|
|
printk(KERN_INFO "%s: Node address error\n",
|
| 994 |
|
|
dev->name);
|
| 995 |
|
|
if(ssb_parm_0 & LIST_SIZE_ERROR)
|
| 996 |
|
|
printk(KERN_INFO "%s: List size error\n",
|
| 997 |
|
|
dev->name);
|
| 998 |
|
|
if(ssb_parm_0 & BUF_SIZE_ERROR)
|
| 999 |
|
|
printk(KERN_INFO "%s: Buffer size error\n",
|
| 1000 |
|
|
dev->name);
|
| 1001 |
|
|
if(ssb_parm_0 & TX_BUF_COUNT_ERROR)
|
| 1002 |
|
|
printk(KERN_INFO "%s: Tx buffer count error\n",
|
| 1003 |
|
|
dev->name);
|
| 1004 |
|
|
if(ssb_parm_0 & INVALID_OPEN_OPTION)
|
| 1005 |
|
|
printk(KERN_INFO "%s: Invalid open option\n",
|
| 1006 |
|
|
dev->name);
|
| 1007 |
|
|
if(ssb_parm_0 & OPEN_ERROR)
|
| 1008 |
|
|
{
|
| 1009 |
|
|
/* Show the open phase. */
|
| 1010 |
|
|
switch(ssb_parm_0 & OPEN_PHASES_MASK)
|
| 1011 |
|
|
{
|
| 1012 |
|
|
case LOBE_MEDIA_TEST:
|
| 1013 |
|
|
if(!tp->LobeWireFaultLogged)
|
| 1014 |
|
|
{
|
| 1015 |
|
|
tp->LobeWireFaultLogged = 1;
|
| 1016 |
|
|
printk(KERN_INFO "%s: %s Lobe wire fault (check cable !).\n", dev->name, open_err);
|
| 1017 |
|
|
}
|
| 1018 |
|
|
tp->ReOpenInProgress = 1;
|
| 1019 |
|
|
tp->AdapterOpenFlag = 0;
|
| 1020 |
|
|
tp->AdapterVirtOpenFlag = 1;
|
| 1021 |
|
|
tms380tr_open_adapter(dev);
|
| 1022 |
|
|
return;
|
| 1023 |
|
|
|
| 1024 |
|
|
case PHYSICAL_INSERTION:
|
| 1025 |
|
|
printk(KERN_INFO "%s: %s Physical insertion.\n", dev->name, open_err);
|
| 1026 |
|
|
break;
|
| 1027 |
|
|
|
| 1028 |
|
|
case ADDRESS_VERIFICATION:
|
| 1029 |
|
|
printk(KERN_INFO "%s: %s Address verification.\n", dev->name, open_err);
|
| 1030 |
|
|
break;
|
| 1031 |
|
|
|
| 1032 |
|
|
case PARTICIPATION_IN_RING_POLL:
|
| 1033 |
|
|
printk(KERN_INFO "%s: %s Participation in ring poll.\n", dev->name, open_err);
|
| 1034 |
|
|
break;
|
| 1035 |
|
|
|
| 1036 |
|
|
case REQUEST_INITIALISATION:
|
| 1037 |
|
|
printk(KERN_INFO "%s: %s Request initialisation.\n", dev->name, open_err);
|
| 1038 |
|
|
break;
|
| 1039 |
|
|
|
| 1040 |
|
|
case FULLDUPLEX_CHECK:
|
| 1041 |
|
|
printk(KERN_INFO "%s: %s Full duplex check.\n", dev->name, open_err);
|
| 1042 |
|
|
break;
|
| 1043 |
|
|
|
| 1044 |
|
|
default:
|
| 1045 |
|
|
printk(KERN_INFO "%s: %s Unknown open phase\n", dev->name, open_err);
|
| 1046 |
|
|
break;
|
| 1047 |
|
|
}
|
| 1048 |
|
|
|
| 1049 |
|
|
/* Show the open errors. */
|
| 1050 |
|
|
switch(ssb_parm_0 & OPEN_ERROR_CODES_MASK)
|
| 1051 |
|
|
{
|
| 1052 |
|
|
case OPEN_FUNCTION_FAILURE:
|
| 1053 |
|
|
printk(KERN_INFO "%s: %s OPEN_FUNCTION_FAILURE", dev->name, code_err);
|
| 1054 |
|
|
tp->LastOpenStatus =
|
| 1055 |
|
|
OPEN_FUNCTION_FAILURE;
|
| 1056 |
|
|
break;
|
| 1057 |
|
|
|
| 1058 |
|
|
case OPEN_SIGNAL_LOSS:
|
| 1059 |
|
|
printk(KERN_INFO "%s: %s OPEN_SIGNAL_LOSS\n", dev->name, code_err);
|
| 1060 |
|
|
tp->LastOpenStatus =
|
| 1061 |
|
|
OPEN_SIGNAL_LOSS;
|
| 1062 |
|
|
break;
|
| 1063 |
|
|
|
| 1064 |
|
|
case OPEN_TIMEOUT:
|
| 1065 |
|
|
printk(KERN_INFO "%s: %s OPEN_TIMEOUT\n", dev->name, code_err);
|
| 1066 |
|
|
tp->LastOpenStatus =
|
| 1067 |
|
|
OPEN_TIMEOUT;
|
| 1068 |
|
|
break;
|
| 1069 |
|
|
|
| 1070 |
|
|
case OPEN_RING_FAILURE:
|
| 1071 |
|
|
printk(KERN_INFO "%s: %s OPEN_RING_FAILURE\n", dev->name, code_err);
|
| 1072 |
|
|
tp->LastOpenStatus =
|
| 1073 |
|
|
OPEN_RING_FAILURE;
|
| 1074 |
|
|
break;
|
| 1075 |
|
|
|
| 1076 |
|
|
case OPEN_RING_BEACONING:
|
| 1077 |
|
|
printk(KERN_INFO "%s: %s OPEN_RING_BEACONING\n", dev->name, code_err);
|
| 1078 |
|
|
tp->LastOpenStatus =
|
| 1079 |
|
|
OPEN_RING_BEACONING;
|
| 1080 |
|
|
break;
|
| 1081 |
|
|
|
| 1082 |
|
|
case OPEN_DUPLICATE_NODEADDR:
|
| 1083 |
|
|
printk(KERN_INFO "%s: %s OPEN_DUPLICATE_NODEADDR\n", dev->name, code_err);
|
| 1084 |
|
|
tp->LastOpenStatus =
|
| 1085 |
|
|
OPEN_DUPLICATE_NODEADDR;
|
| 1086 |
|
|
break;
|
| 1087 |
|
|
|
| 1088 |
|
|
case OPEN_REQUEST_INIT:
|
| 1089 |
|
|
printk(KERN_INFO "%s: %s OPEN_REQUEST_INIT\n", dev->name, code_err);
|
| 1090 |
|
|
tp->LastOpenStatus =
|
| 1091 |
|
|
OPEN_REQUEST_INIT;
|
| 1092 |
|
|
break;
|
| 1093 |
|
|
|
| 1094 |
|
|
case OPEN_REMOVE_RECEIVED:
|
| 1095 |
|
|
printk(KERN_INFO "%s: %s OPEN_REMOVE_RECEIVED", dev->name, code_err);
|
| 1096 |
|
|
tp->LastOpenStatus =
|
| 1097 |
|
|
OPEN_REMOVE_RECEIVED;
|
| 1098 |
|
|
break;
|
| 1099 |
|
|
|
| 1100 |
|
|
case OPEN_FULLDUPLEX_SET:
|
| 1101 |
|
|
printk(KERN_INFO "%s: %s OPEN_FULLDUPLEX_SET\n", dev->name, code_err);
|
| 1102 |
|
|
tp->LastOpenStatus =
|
| 1103 |
|
|
OPEN_FULLDUPLEX_SET;
|
| 1104 |
|
|
break;
|
| 1105 |
|
|
|
| 1106 |
|
|
default:
|
| 1107 |
|
|
printk(KERN_INFO "%s: %s Unknown open err code", dev->name, code_err);
|
| 1108 |
|
|
tp->LastOpenStatus =
|
| 1109 |
|
|
OPEN_FUNCTION_FAILURE;
|
| 1110 |
|
|
break;
|
| 1111 |
|
|
}
|
| 1112 |
|
|
}
|
| 1113 |
|
|
|
| 1114 |
|
|
tp->AdapterOpenFlag = 0;
|
| 1115 |
|
|
tp->AdapterVirtOpenFlag = 0;
|
| 1116 |
|
|
|
| 1117 |
|
|
return;
|
| 1118 |
|
|
}
|
| 1119 |
|
|
}
|
| 1120 |
|
|
else
|
| 1121 |
|
|
{
|
| 1122 |
|
|
if(ssb_cmd != READ_ERROR_LOG)
|
| 1123 |
|
|
return;
|
| 1124 |
|
|
|
| 1125 |
|
|
/* Add values from the error log table to the MAC
|
| 1126 |
|
|
* statistics counters and update the errorlogtable
|
| 1127 |
|
|
* memory.
|
| 1128 |
|
|
*/
|
| 1129 |
|
|
tp->MacStat.line_errors += tp->errorlogtable.Line_Error;
|
| 1130 |
|
|
tp->MacStat.burst_errors += tp->errorlogtable.Burst_Error;
|
| 1131 |
|
|
tp->MacStat.A_C_errors += tp->errorlogtable.ARI_FCI_Error;
|
| 1132 |
|
|
tp->MacStat.lost_frames += tp->errorlogtable.Lost_Frame_Error;
|
| 1133 |
|
|
tp->MacStat.recv_congest_count += tp->errorlogtable.Rx_Congest_Error;
|
| 1134 |
|
|
tp->MacStat.rx_errors += tp->errorlogtable.Rx_Congest_Error;
|
| 1135 |
|
|
tp->MacStat.frame_copied_errors += tp->errorlogtable.Frame_Copied_Error;
|
| 1136 |
|
|
tp->MacStat.token_errors += tp->errorlogtable.Token_Error;
|
| 1137 |
|
|
tp->MacStat.dummy1 += tp->errorlogtable.DMA_Bus_Error;
|
| 1138 |
|
|
tp->MacStat.dummy1 += tp->errorlogtable.DMA_Parity_Error;
|
| 1139 |
|
|
tp->MacStat.abort_delimiters += tp->errorlogtable.AbortDelimeters;
|
| 1140 |
|
|
tp->MacStat.frequency_errors += tp->errorlogtable.Frequency_Error;
|
| 1141 |
|
|
tp->MacStat.internal_errors += tp->errorlogtable.Internal_Error;
|
| 1142 |
|
|
}
|
| 1143 |
|
|
|
| 1144 |
|
|
return;
|
| 1145 |
|
|
}
|
| 1146 |
|
|
|
| 1147 |
|
|
/*
|
| 1148 |
|
|
* The inverse routine to tms380tr_open().
|
| 1149 |
|
|
*/
|
| 1150 |
|
|
int tms380tr_close(struct net_device *dev)
|
| 1151 |
|
|
{
|
| 1152 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 1153 |
|
|
netif_stop_queue(dev);
|
| 1154 |
|
|
|
| 1155 |
|
|
del_timer(&tp->timer);
|
| 1156 |
|
|
|
| 1157 |
|
|
/* Flush the Tx and disable Rx here. */
|
| 1158 |
|
|
|
| 1159 |
|
|
tp->HaltInProgress = 1;
|
| 1160 |
|
|
tms380tr_exec_cmd(dev, OC_CLOSE);
|
| 1161 |
|
|
tp->timer.expires = jiffies + 1*HZ;
|
| 1162 |
|
|
tp->timer.function = tms380tr_timer_end_wait;
|
| 1163 |
|
|
tp->timer.data = (unsigned long)dev;
|
| 1164 |
|
|
add_timer(&tp->timer);
|
| 1165 |
|
|
|
| 1166 |
|
|
tms380tr_enable_interrupts(dev);
|
| 1167 |
|
|
|
| 1168 |
|
|
tp->Sleeping = 1;
|
| 1169 |
|
|
interruptible_sleep_on(&tp->wait_for_tok_int);
|
| 1170 |
|
|
tp->TransmitCommandActive = 0;
|
| 1171 |
|
|
|
| 1172 |
|
|
del_timer(&tp->timer);
|
| 1173 |
|
|
tms380tr_disable_interrupts(dev);
|
| 1174 |
|
|
|
| 1175 |
|
|
if(dev->dma > 0)
|
| 1176 |
|
|
{
|
| 1177 |
|
|
unsigned long flags=claim_dma_lock();
|
| 1178 |
|
|
disable_dma(dev->dma);
|
| 1179 |
|
|
release_dma_lock(flags);
|
| 1180 |
|
|
}
|
| 1181 |
|
|
|
| 1182 |
|
|
SIFWRITEW(0xFF00, SIFCMD);
|
| 1183 |
|
|
#if 0
|
| 1184 |
|
|
if(dev->dma > 0) /* what the? */
|
| 1185 |
|
|
SIFWRITEB(0xff, POSREG);
|
| 1186 |
|
|
#endif
|
| 1187 |
|
|
tms380tr_cancel_tx_queue(tp);
|
| 1188 |
|
|
|
| 1189 |
|
|
return (0);
|
| 1190 |
|
|
}
|
| 1191 |
|
|
|
| 1192 |
|
|
/*
|
| 1193 |
|
|
* Get the current statistics. This may be called with the card open
|
| 1194 |
|
|
* or closed.
|
| 1195 |
|
|
*/
|
| 1196 |
|
|
static struct net_device_stats *tms380tr_get_stats(struct net_device *dev)
|
| 1197 |
|
|
{
|
| 1198 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 1199 |
|
|
|
| 1200 |
|
|
return ((struct net_device_stats *)&tp->MacStat);
|
| 1201 |
|
|
}
|
| 1202 |
|
|
|
| 1203 |
|
|
/*
|
| 1204 |
|
|
* Set or clear the multicast filter for this adapter.
|
| 1205 |
|
|
*/
|
| 1206 |
|
|
static void tms380tr_set_multicast_list(struct net_device *dev)
|
| 1207 |
|
|
{
|
| 1208 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 1209 |
|
|
unsigned int OpenOptions;
|
| 1210 |
|
|
|
| 1211 |
|
|
OpenOptions = tp->ocpl.OPENOptions &
|
| 1212 |
|
|
~(PASS_ADAPTER_MAC_FRAMES
|
| 1213 |
|
|
| PASS_ATTENTION_FRAMES
|
| 1214 |
|
|
| PASS_BEACON_MAC_FRAMES
|
| 1215 |
|
|
| COPY_ALL_MAC_FRAMES
|
| 1216 |
|
|
| COPY_ALL_NON_MAC_FRAMES);
|
| 1217 |
|
|
|
| 1218 |
|
|
tp->ocpl.FunctAddr = 0;
|
| 1219 |
|
|
|
| 1220 |
|
|
if(dev->flags & IFF_PROMISC)
|
| 1221 |
|
|
/* Enable promiscuous mode */
|
| 1222 |
|
|
OpenOptions |= COPY_ALL_NON_MAC_FRAMES |
|
| 1223 |
|
|
COPY_ALL_MAC_FRAMES;
|
| 1224 |
|
|
else
|
| 1225 |
|
|
{
|
| 1226 |
|
|
if(dev->flags & IFF_ALLMULTI)
|
| 1227 |
|
|
{
|
| 1228 |
|
|
/* Disable promiscuous mode, use normal mode. */
|
| 1229 |
|
|
tp->ocpl.FunctAddr = 0xFFFFFFFF;
|
| 1230 |
|
|
}
|
| 1231 |
|
|
else
|
| 1232 |
|
|
{
|
| 1233 |
|
|
int i;
|
| 1234 |
|
|
struct dev_mc_list *mclist = dev->mc_list;
|
| 1235 |
|
|
for (i=0; i< dev->mc_count; i++)
|
| 1236 |
|
|
{
|
| 1237 |
|
|
((char *)(&tp->ocpl.FunctAddr))[0] |=
|
| 1238 |
|
|
mclist->dmi_addr[2];
|
| 1239 |
|
|
((char *)(&tp->ocpl.FunctAddr))[1] |=
|
| 1240 |
|
|
mclist->dmi_addr[3];
|
| 1241 |
|
|
((char *)(&tp->ocpl.FunctAddr))[2] |=
|
| 1242 |
|
|
mclist->dmi_addr[4];
|
| 1243 |
|
|
((char *)(&tp->ocpl.FunctAddr))[3] |=
|
| 1244 |
|
|
mclist->dmi_addr[5];
|
| 1245 |
|
|
mclist = mclist->next;
|
| 1246 |
|
|
}
|
| 1247 |
|
|
}
|
| 1248 |
|
|
tms380tr_exec_cmd(dev, OC_SET_FUNCT_ADDR);
|
| 1249 |
|
|
}
|
| 1250 |
|
|
|
| 1251 |
|
|
tp->ocpl.OPENOptions = OpenOptions;
|
| 1252 |
|
|
tms380tr_exec_cmd(dev, OC_MODIFY_OPEN_PARMS);
|
| 1253 |
|
|
return;
|
| 1254 |
|
|
}
|
| 1255 |
|
|
|
| 1256 |
|
|
/*
|
| 1257 |
|
|
* Wait for some time (microseconds)
|
| 1258 |
|
|
*/
|
| 1259 |
|
|
void tms380tr_wait(unsigned long time)
|
| 1260 |
|
|
{
|
| 1261 |
|
|
#if 0
|
| 1262 |
|
|
long tmp;
|
| 1263 |
|
|
|
| 1264 |
|
|
tmp = jiffies + time/(1000000/HZ);
|
| 1265 |
|
|
do {
|
| 1266 |
|
|
current->state = TASK_INTERRUPTIBLE;
|
| 1267 |
|
|
tmp = schedule_timeout(tmp);
|
| 1268 |
|
|
} while(time_after(tmp, jiffies));
|
| 1269 |
|
|
#else
|
| 1270 |
|
|
udelay(time);
|
| 1271 |
|
|
#endif
|
| 1272 |
|
|
return;
|
| 1273 |
|
|
}
|
| 1274 |
|
|
|
| 1275 |
|
|
/*
|
| 1276 |
|
|
* Write a command value to the SIFCMD register
|
| 1277 |
|
|
*/
|
| 1278 |
|
|
static void tms380tr_exec_sifcmd(struct net_device *dev, unsigned int WriteValue)
|
| 1279 |
|
|
{
|
| 1280 |
|
|
unsigned short cmd;
|
| 1281 |
|
|
unsigned short SifStsValue;
|
| 1282 |
|
|
unsigned long loop_counter;
|
| 1283 |
|
|
|
| 1284 |
|
|
WriteValue = ((WriteValue ^ CMD_SYSTEM_IRQ) | CMD_INTERRUPT_ADAPTER);
|
| 1285 |
|
|
cmd = (unsigned short)WriteValue;
|
| 1286 |
|
|
loop_counter = 0,5 * 800000;
|
| 1287 |
|
|
do {
|
| 1288 |
|
|
SifStsValue = SIFREADW(SIFSTS);
|
| 1289 |
|
|
} while((SifStsValue & CMD_INTERRUPT_ADAPTER) && loop_counter--);
|
| 1290 |
|
|
SIFWRITEW(cmd, SIFCMD);
|
| 1291 |
|
|
|
| 1292 |
|
|
return;
|
| 1293 |
|
|
}
|
| 1294 |
|
|
|
| 1295 |
|
|
/*
|
| 1296 |
|
|
* Processes adapter hardware reset, halts adapter and downloads firmware,
|
| 1297 |
|
|
* clears the halt bit.
|
| 1298 |
|
|
*/
|
| 1299 |
|
|
static int tms380tr_reset_adapter(struct net_device *dev)
|
| 1300 |
|
|
{
|
| 1301 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 1302 |
|
|
unsigned short *fw_ptr = (unsigned short *)&tms380tr_code;
|
| 1303 |
|
|
unsigned short count, c;
|
| 1304 |
|
|
|
| 1305 |
|
|
/* Hardware adapter reset */
|
| 1306 |
|
|
SIFWRITEW(ACL_ARESET, SIFACL);
|
| 1307 |
|
|
tms380tr_wait(40);
|
| 1308 |
|
|
|
| 1309 |
|
|
c = SIFREADW(SIFACL);
|
| 1310 |
|
|
tms380tr_wait(20);
|
| 1311 |
|
|
|
| 1312 |
|
|
if(dev->dma == 0) /* For PCI adapters */
|
| 1313 |
|
|
{
|
| 1314 |
|
|
c &= ~(ACL_NSELOUT0 | ACL_NSELOUT1); /* Clear bits */
|
| 1315 |
|
|
if(tp->setnselout)
|
| 1316 |
|
|
c |= (*tp->setnselout)(dev);
|
| 1317 |
|
|
}
|
| 1318 |
|
|
|
| 1319 |
|
|
/* In case a command is pending - forget it */
|
| 1320 |
|
|
tp->ScbInUse = 0;
|
| 1321 |
|
|
|
| 1322 |
|
|
c &= ~ACL_ARESET; /* Clear adapter reset bit */
|
| 1323 |
|
|
c |= ACL_CPHALT; /* Halt adapter CPU, allow download */
|
| 1324 |
|
|
c |= ACL_BOOT;
|
| 1325 |
|
|
c |= ACL_SINTEN;
|
| 1326 |
|
|
c &= ~ACL_PSDMAEN; /* Clear pseudo dma bit */
|
| 1327 |
|
|
SIFWRITEW(c, SIFACL);
|
| 1328 |
|
|
tms380tr_wait(40);
|
| 1329 |
|
|
|
| 1330 |
|
|
/* Download firmware via DIO interface: */
|
| 1331 |
|
|
do {
|
| 1332 |
|
|
/* Download first address part */
|
| 1333 |
|
|
SIFWRITEW(*fw_ptr, SIFADX);
|
| 1334 |
|
|
fw_ptr++;
|
| 1335 |
|
|
|
| 1336 |
|
|
/* Download second address part */
|
| 1337 |
|
|
SIFWRITEW(*fw_ptr, SIFADD);
|
| 1338 |
|
|
fw_ptr++;
|
| 1339 |
|
|
|
| 1340 |
|
|
if((count = *fw_ptr) != 0) /* Load loop counter */
|
| 1341 |
|
|
{
|
| 1342 |
|
|
fw_ptr++; /* Download block data */
|
| 1343 |
|
|
for(; count > 0; count--)
|
| 1344 |
|
|
{
|
| 1345 |
|
|
SIFWRITEW(*fw_ptr, SIFINC);
|
| 1346 |
|
|
fw_ptr++;
|
| 1347 |
|
|
}
|
| 1348 |
|
|
}
|
| 1349 |
|
|
else /* Stop, if last block downloaded */
|
| 1350 |
|
|
{
|
| 1351 |
|
|
c = SIFREADW(SIFACL);
|
| 1352 |
|
|
c &= (~ACL_CPHALT | ACL_SINTEN);
|
| 1353 |
|
|
|
| 1354 |
|
|
/* Clear CPHALT and start BUD */
|
| 1355 |
|
|
SIFWRITEW(c, SIFACL);
|
| 1356 |
|
|
return (1);
|
| 1357 |
|
|
}
|
| 1358 |
|
|
} while(count == 0);
|
| 1359 |
|
|
|
| 1360 |
|
|
printk(KERN_INFO "%s: Adapter Download Failed\n", dev->name);
|
| 1361 |
|
|
return (-1);
|
| 1362 |
|
|
}
|
| 1363 |
|
|
|
| 1364 |
|
|
/*
|
| 1365 |
|
|
* Starts bring up diagnostics of token ring adapter and evaluates
|
| 1366 |
|
|
* diagnostic results.
|
| 1367 |
|
|
*/
|
| 1368 |
|
|
static int tms380tr_bringup_diags(struct net_device *dev)
|
| 1369 |
|
|
{
|
| 1370 |
|
|
int loop_cnt, retry_cnt;
|
| 1371 |
|
|
unsigned short Status;
|
| 1372 |
|
|
|
| 1373 |
|
|
tms380tr_wait(HALF_SECOND);
|
| 1374 |
|
|
tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET);
|
| 1375 |
|
|
tms380tr_wait(HALF_SECOND);
|
| 1376 |
|
|
|
| 1377 |
|
|
retry_cnt = BUD_MAX_RETRIES; /* maximal number of retrys */
|
| 1378 |
|
|
|
| 1379 |
|
|
do {
|
| 1380 |
|
|
retry_cnt--;
|
| 1381 |
|
|
if(tms380tr_debug > 3)
|
| 1382 |
|
|
printk(KERN_INFO "BUD-Status: ");
|
| 1383 |
|
|
loop_cnt = BUD_MAX_LOOPCNT; /* maximum: three seconds*/
|
| 1384 |
|
|
do { /* Inspect BUD results */
|
| 1385 |
|
|
loop_cnt--;
|
| 1386 |
|
|
tms380tr_wait(HALF_SECOND);
|
| 1387 |
|
|
Status = SIFREADW(SIFSTS);
|
| 1388 |
|
|
Status &= STS_MASK;
|
| 1389 |
|
|
|
| 1390 |
|
|
if(tms380tr_debug > 3)
|
| 1391 |
|
|
printk(KERN_INFO " %04X \n", Status);
|
| 1392 |
|
|
/* BUD successfully completed */
|
| 1393 |
|
|
if(Status == STS_INITIALIZE)
|
| 1394 |
|
|
return (1);
|
| 1395 |
|
|
/* Unrecoverable hardware error, BUD not completed? */
|
| 1396 |
|
|
} while((loop_cnt > 0) && ((Status & (STS_ERROR | STS_TEST))
|
| 1397 |
|
|
!= (STS_ERROR | STS_TEST)));
|
| 1398 |
|
|
|
| 1399 |
|
|
/* Error preventing completion of BUD */
|
| 1400 |
|
|
if(retry_cnt > 0)
|
| 1401 |
|
|
{
|
| 1402 |
|
|
printk(KERN_INFO "%s: Adapter Software Reset.\n",
|
| 1403 |
|
|
dev->name);
|
| 1404 |
|
|
tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET);
|
| 1405 |
|
|
tms380tr_wait(HALF_SECOND);
|
| 1406 |
|
|
}
|
| 1407 |
|
|
} while(retry_cnt > 0);
|
| 1408 |
|
|
|
| 1409 |
|
|
Status = SIFREADW(SIFSTS);
|
| 1410 |
|
|
|
| 1411 |
|
|
printk(KERN_INFO "%s: Hardware error\n", dev->name);
|
| 1412 |
|
|
/* Hardware error occurred! */
|
| 1413 |
|
|
Status &= 0x001f;
|
| 1414 |
|
|
if (Status & 0x0010)
|
| 1415 |
|
|
printk(KERN_INFO "%s: BUD Error: Timeout\n", dev->name);
|
| 1416 |
|
|
else if ((Status & 0x000f) > 6)
|
| 1417 |
|
|
printk(KERN_INFO "%s: BUD Error: Illegal Failure\n", dev->name);
|
| 1418 |
|
|
else
|
| 1419 |
|
|
printk(KERN_INFO "%s: Bring Up Diagnostics Error (%04X) occurred\n", dev->name, Status & 0x000f);
|
| 1420 |
|
|
|
| 1421 |
|
|
return (-1);
|
| 1422 |
|
|
}
|
| 1423 |
|
|
|
| 1424 |
|
|
/*
|
| 1425 |
|
|
* Copy initialisation data to adapter memory, beginning at address
|
| 1426 |
|
|
* 1:0A00; Starting DMA test and evaluating result bits.
|
| 1427 |
|
|
*/
|
| 1428 |
|
|
static int tms380tr_init_adapter(struct net_device *dev)
|
| 1429 |
|
|
{
|
| 1430 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 1431 |
|
|
|
| 1432 |
|
|
const unsigned char SCB_Test[6] = {0x00, 0x00, 0xC1, 0xE2, 0xD4, 0x8B};
|
| 1433 |
|
|
const unsigned char SSB_Test[8] = {0xFF, 0xFF, 0xD1, 0xD7,
|
| 1434 |
|
|
0xC5, 0xD9, 0xC3, 0xD4};
|
| 1435 |
|
|
void *ptr = (void *)&tp->ipb;
|
| 1436 |
|
|
unsigned short *ipb_ptr = (unsigned short *)ptr;
|
| 1437 |
|
|
unsigned char *cb_ptr = (unsigned char *) &tp->scb;
|
| 1438 |
|
|
unsigned char *sb_ptr = (unsigned char *) &tp->ssb;
|
| 1439 |
|
|
unsigned short Status;
|
| 1440 |
|
|
int i, loop_cnt, retry_cnt;
|
| 1441 |
|
|
|
| 1442 |
|
|
/* Normalize: byte order low/high, word order high/low! (only IPB!) */
|
| 1443 |
|
|
tp->ipb.SCB_Addr = SWAPW(((char *)&tp->scb - (char *)tp) + tp->dmabuffer);
|
| 1444 |
|
|
tp->ipb.SSB_Addr = SWAPW(((char *)&tp->ssb - (char *)tp) + tp->dmabuffer);
|
| 1445 |
|
|
|
| 1446 |
|
|
if(tms380tr_debug > 3)
|
| 1447 |
|
|
{
|
| 1448 |
|
|
printk(KERN_INFO "%s: buffer (real): %lx\n", dev->name, (long) &tp->scb);
|
| 1449 |
|
|
printk(KERN_INFO "%s: buffer (virt): %lx\n", dev->name, (long) ((char *)&tp->scb - (char *)tp) + tp->dmabuffer);
|
| 1450 |
|
|
printk(KERN_INFO "%s: buffer (DMA) : %lx\n", dev->name, (long) tp->dmabuffer);
|
| 1451 |
|
|
printk(KERN_INFO "%s: buffer (tp) : %lx\n", dev->name, (long) tp);
|
| 1452 |
|
|
}
|
| 1453 |
|
|
/* Maximum: three initialization retries */
|
| 1454 |
|
|
retry_cnt = INIT_MAX_RETRIES;
|
| 1455 |
|
|
|
| 1456 |
|
|
do {
|
| 1457 |
|
|
retry_cnt--;
|
| 1458 |
|
|
|
| 1459 |
|
|
/* Transfer initialization block */
|
| 1460 |
|
|
SIFWRITEW(0x0001, SIFADX);
|
| 1461 |
|
|
|
| 1462 |
|
|
/* To address 0001:0A00 of adapter RAM */
|
| 1463 |
|
|
SIFWRITEW(0x0A00, SIFADD);
|
| 1464 |
|
|
|
| 1465 |
|
|
/* Write 11 words to adapter RAM */
|
| 1466 |
|
|
for(i = 0; i < 11; i++)
|
| 1467 |
|
|
SIFWRITEW(ipb_ptr[i], SIFINC);
|
| 1468 |
|
|
|
| 1469 |
|
|
/* Execute SCB adapter command */
|
| 1470 |
|
|
tms380tr_exec_sifcmd(dev, CMD_EXECUTE);
|
| 1471 |
|
|
|
| 1472 |
|
|
loop_cnt = INIT_MAX_LOOPCNT; /* Maximum: 11 seconds */
|
| 1473 |
|
|
|
| 1474 |
|
|
/* While remaining retries, no error and not completed */
|
| 1475 |
|
|
do {
|
| 1476 |
|
|
Status = 0;
|
| 1477 |
|
|
loop_cnt--;
|
| 1478 |
|
|
tms380tr_wait(HALF_SECOND);
|
| 1479 |
|
|
|
| 1480 |
|
|
/* Mask interesting status bits */
|
| 1481 |
|
|
Status = SIFREADW(SIFSTS);
|
| 1482 |
|
|
Status &= STS_MASK;
|
| 1483 |
|
|
} while(((Status &(STS_INITIALIZE | STS_ERROR | STS_TEST)) != 0)
|
| 1484 |
|
|
&& ((Status & STS_ERROR) == 0) && (loop_cnt != 0));
|
| 1485 |
|
|
|
| 1486 |
|
|
if((Status & (STS_INITIALIZE | STS_ERROR | STS_TEST)) == 0)
|
| 1487 |
|
|
{
|
| 1488 |
|
|
/* Initialization completed without error */
|
| 1489 |
|
|
i = 0;
|
| 1490 |
|
|
do { /* Test if contents of SCB is valid */
|
| 1491 |
|
|
if(SCB_Test[i] != *(cb_ptr + i))
|
| 1492 |
|
|
{
|
| 1493 |
|
|
printk(KERN_INFO "%s: DMA failed\n", dev->name);
|
| 1494 |
|
|
/* DMA data error: wrong data in SCB */
|
| 1495 |
|
|
return (-1);
|
| 1496 |
|
|
}
|
| 1497 |
|
|
i++;
|
| 1498 |
|
|
} while(i < 6);
|
| 1499 |
|
|
|
| 1500 |
|
|
i = 0;
|
| 1501 |
|
|
do { /* Test if contents of SSB is valid */
|
| 1502 |
|
|
if(SSB_Test[i] != *(sb_ptr + i))
|
| 1503 |
|
|
/* DMA data error: wrong data in SSB */
|
| 1504 |
|
|
return (-1);
|
| 1505 |
|
|
i++;
|
| 1506 |
|
|
} while (i < 8);
|
| 1507 |
|
|
|
| 1508 |
|
|
return (1); /* Adapter successfully initialized */
|
| 1509 |
|
|
}
|
| 1510 |
|
|
else
|
| 1511 |
|
|
{
|
| 1512 |
|
|
if((Status & STS_ERROR) != 0)
|
| 1513 |
|
|
{
|
| 1514 |
|
|
/* Initialization error occurred */
|
| 1515 |
|
|
Status = SIFREADW(SIFSTS);
|
| 1516 |
|
|
Status &= STS_ERROR_MASK;
|
| 1517 |
|
|
/* ShowInitialisationErrorCode(Status); */
|
| 1518 |
|
|
printk(KERN_INFO "%s: Status error: %d\n", dev->name, Status);
|
| 1519 |
|
|
return (-1); /* Unrecoverable error */
|
| 1520 |
|
|
}
|
| 1521 |
|
|
else
|
| 1522 |
|
|
{
|
| 1523 |
|
|
if(retry_cnt > 0)
|
| 1524 |
|
|
{
|
| 1525 |
|
|
/* Reset adapter and try init again */
|
| 1526 |
|
|
tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET);
|
| 1527 |
|
|
tms380tr_wait(HALF_SECOND);
|
| 1528 |
|
|
}
|
| 1529 |
|
|
}
|
| 1530 |
|
|
}
|
| 1531 |
|
|
} while(retry_cnt > 0);
|
| 1532 |
|
|
|
| 1533 |
|
|
printk(KERN_INFO "%s: Retry exceeded\n", dev->name);
|
| 1534 |
|
|
return (-1);
|
| 1535 |
|
|
}
|
| 1536 |
|
|
|
| 1537 |
|
|
/*
|
| 1538 |
|
|
* Check for outstanding commands in command queue and tries to execute
|
| 1539 |
|
|
* command immediately. Corresponding command flag in command queue is cleared.
|
| 1540 |
|
|
*/
|
| 1541 |
|
|
static void tms380tr_chk_outstanding_cmds(struct net_device *dev)
|
| 1542 |
|
|
{
|
| 1543 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 1544 |
|
|
unsigned long Addr = 0;
|
| 1545 |
|
|
|
| 1546 |
|
|
if(tp->CMDqueue == 0)
|
| 1547 |
|
|
return; /* No command execution */
|
| 1548 |
|
|
|
| 1549 |
|
|
/* If SCB in use: no command */
|
| 1550 |
|
|
if(tp->ScbInUse == 1)
|
| 1551 |
|
|
return;
|
| 1552 |
|
|
|
| 1553 |
|
|
/* Check if adapter is opened, avoiding COMMAND_REJECT
|
| 1554 |
|
|
* interrupt by the adapter!
|
| 1555 |
|
|
*/
|
| 1556 |
|
|
if(tp->AdapterOpenFlag == 0)
|
| 1557 |
|
|
{
|
| 1558 |
|
|
if(tp->CMDqueue & OC_OPEN)
|
| 1559 |
|
|
{
|
| 1560 |
|
|
/* Execute OPEN command */
|
| 1561 |
|
|
tp->CMDqueue ^= OC_OPEN;
|
| 1562 |
|
|
|
| 1563 |
|
|
Addr = htonl(((char *)&tp->ocpl - (char *)tp) + tp->dmabuffer);
|
| 1564 |
|
|
tp->scb.Parm[0] = LOWORD(Addr);
|
| 1565 |
|
|
tp->scb.Parm[1] = HIWORD(Addr);
|
| 1566 |
|
|
tp->scb.CMD = OPEN;
|
| 1567 |
|
|
}
|
| 1568 |
|
|
else
|
| 1569 |
|
|
/* No OPEN command queued, but adapter closed. Note:
|
| 1570 |
|
|
* We'll try to re-open the adapter in DriverPoll()
|
| 1571 |
|
|
*/
|
| 1572 |
|
|
return; /* No adapter command issued */
|
| 1573 |
|
|
}
|
| 1574 |
|
|
else
|
| 1575 |
|
|
{
|
| 1576 |
|
|
/* Adapter is open; evaluate command queue: try to execute
|
| 1577 |
|
|
* outstanding commands (depending on priority!) CLOSE
|
| 1578 |
|
|
* command queued
|
| 1579 |
|
|
*/
|
| 1580 |
|
|
if(tp->CMDqueue & OC_CLOSE)
|
| 1581 |
|
|
{
|
| 1582 |
|
|
tp->CMDqueue ^= OC_CLOSE;
|
| 1583 |
|
|
tp->AdapterOpenFlag = 0;
|
| 1584 |
|
|
tp->scb.Parm[0] = 0; /* Parm[0], Parm[1] are ignored */
|
| 1585 |
|
|
tp->scb.Parm[1] = 0; /* but should be set to zero! */
|
| 1586 |
|
|
tp->scb.CMD = CLOSE;
|
| 1587 |
|
|
if(!tp->HaltInProgress)
|
| 1588 |
|
|
tp->CMDqueue |= OC_OPEN; /* re-open adapter */
|
| 1589 |
|
|
else
|
| 1590 |
|
|
tp->CMDqueue = 0; /* no more commands */
|
| 1591 |
|
|
}
|
| 1592 |
|
|
else
|
| 1593 |
|
|
{
|
| 1594 |
|
|
if(tp->CMDqueue & OC_RECEIVE)
|
| 1595 |
|
|
{
|
| 1596 |
|
|
tp->CMDqueue ^= OC_RECEIVE;
|
| 1597 |
|
|
Addr = htonl(((char *)tp->RplHead - (char *)tp) + tp->dmabuffer);
|
| 1598 |
|
|
tp->scb.Parm[0] = LOWORD(Addr);
|
| 1599 |
|
|
tp->scb.Parm[1] = HIWORD(Addr);
|
| 1600 |
|
|
tp->scb.CMD = RECEIVE;
|
| 1601 |
|
|
}
|
| 1602 |
|
|
else
|
| 1603 |
|
|
{
|
| 1604 |
|
|
if(tp->CMDqueue & OC_TRANSMIT_HALT)
|
| 1605 |
|
|
{
|
| 1606 |
|
|
/* NOTE: TRANSMIT.HALT must be checked
|
| 1607 |
|
|
* before TRANSMIT.
|
| 1608 |
|
|
*/
|
| 1609 |
|
|
tp->CMDqueue ^= OC_TRANSMIT_HALT;
|
| 1610 |
|
|
tp->scb.CMD = TRANSMIT_HALT;
|
| 1611 |
|
|
|
| 1612 |
|
|
/* Parm[0] and Parm[1] are ignored
|
| 1613 |
|
|
* but should be set to zero!
|
| 1614 |
|
|
*/
|
| 1615 |
|
|
tp->scb.Parm[0] = 0;
|
| 1616 |
|
|
tp->scb.Parm[1] = 0;
|
| 1617 |
|
|
}
|
| 1618 |
|
|
else
|
| 1619 |
|
|
{
|
| 1620 |
|
|
if(tp->CMDqueue & OC_TRANSMIT)
|
| 1621 |
|
|
{
|
| 1622 |
|
|
/* NOTE: TRANSMIT must be
|
| 1623 |
|
|
* checked after TRANSMIT.HALT
|
| 1624 |
|
|
*/
|
| 1625 |
|
|
if(tp->TransmitCommandActive)
|
| 1626 |
|
|
{
|
| 1627 |
|
|
if(!tp->TransmitHaltScheduled)
|
| 1628 |
|
|
{
|
| 1629 |
|
|
tp->TransmitHaltScheduled = 1;
|
| 1630 |
|
|
tms380tr_exec_cmd(dev, OC_TRANSMIT_HALT) ;
|
| 1631 |
|
|
}
|
| 1632 |
|
|
tp->TransmitCommandActive = 0;
|
| 1633 |
|
|
return;
|
| 1634 |
|
|
}
|
| 1635 |
|
|
|
| 1636 |
|
|
tp->CMDqueue ^= OC_TRANSMIT;
|
| 1637 |
|
|
tms380tr_cancel_tx_queue(tp);
|
| 1638 |
|
|
Addr = htonl(((char *)tp->TplBusy - (char *)tp) + tp->dmabuffer);
|
| 1639 |
|
|
tp->scb.Parm[0] = LOWORD(Addr);
|
| 1640 |
|
|
tp->scb.Parm[1] = HIWORD(Addr);
|
| 1641 |
|
|
tp->scb.CMD = TRANSMIT;
|
| 1642 |
|
|
tp->TransmitCommandActive = 1;
|
| 1643 |
|
|
}
|
| 1644 |
|
|
else
|
| 1645 |
|
|
{
|
| 1646 |
|
|
if(tp->CMDqueue & OC_MODIFY_OPEN_PARMS)
|
| 1647 |
|
|
{
|
| 1648 |
|
|
tp->CMDqueue ^= OC_MODIFY_OPEN_PARMS;
|
| 1649 |
|
|
tp->scb.Parm[0] = tp->ocpl.OPENOptions; /* new OPEN options*/
|
| 1650 |
|
|
tp->scb.Parm[0] |= ENABLE_FULL_DUPLEX_SELECTION;
|
| 1651 |
|
|
tp->scb.Parm[1] = 0; /* is ignored but should be zero */
|
| 1652 |
|
|
tp->scb.CMD = MODIFY_OPEN_PARMS;
|
| 1653 |
|
|
}
|
| 1654 |
|
|
else
|
| 1655 |
|
|
{
|
| 1656 |
|
|
if(tp->CMDqueue & OC_SET_FUNCT_ADDR)
|
| 1657 |
|
|
{
|
| 1658 |
|
|
tp->CMDqueue ^= OC_SET_FUNCT_ADDR;
|
| 1659 |
|
|
tp->scb.Parm[0] = LOWORD(tp->ocpl.FunctAddr);
|
| 1660 |
|
|
tp->scb.Parm[1] = HIWORD(tp->ocpl.FunctAddr);
|
| 1661 |
|
|
tp->scb.CMD = SET_FUNCT_ADDR;
|
| 1662 |
|
|
}
|
| 1663 |
|
|
else
|
| 1664 |
|
|
{
|
| 1665 |
|
|
if(tp->CMDqueue & OC_SET_GROUP_ADDR)
|
| 1666 |
|
|
{
|
| 1667 |
|
|
tp->CMDqueue ^= OC_SET_GROUP_ADDR;
|
| 1668 |
|
|
tp->scb.Parm[0] = LOWORD(tp->ocpl.GroupAddr);
|
| 1669 |
|
|
tp->scb.Parm[1] = HIWORD(tp->ocpl.GroupAddr);
|
| 1670 |
|
|
tp->scb.CMD = SET_GROUP_ADDR;
|
| 1671 |
|
|
}
|
| 1672 |
|
|
else
|
| 1673 |
|
|
{
|
| 1674 |
|
|
if(tp->CMDqueue & OC_READ_ERROR_LOG)
|
| 1675 |
|
|
{
|
| 1676 |
|
|
tp->CMDqueue ^= OC_READ_ERROR_LOG;
|
| 1677 |
|
|
Addr = htonl(((char *)&tp->errorlogtable - (char *)tp) + tp->dmabuffer);
|
| 1678 |
|
|
tp->scb.Parm[0] = LOWORD(Addr);
|
| 1679 |
|
|
tp->scb.Parm[1] = HIWORD(Addr);
|
| 1680 |
|
|
tp->scb.CMD = READ_ERROR_LOG;
|
| 1681 |
|
|
}
|
| 1682 |
|
|
else
|
| 1683 |
|
|
{
|
| 1684 |
|
|
printk(KERN_WARNING "CheckForOutstandingCommand: unknown Command\n");
|
| 1685 |
|
|
tp->CMDqueue = 0;
|
| 1686 |
|
|
return;
|
| 1687 |
|
|
}
|
| 1688 |
|
|
}
|
| 1689 |
|
|
}
|
| 1690 |
|
|
}
|
| 1691 |
|
|
}
|
| 1692 |
|
|
}
|
| 1693 |
|
|
}
|
| 1694 |
|
|
}
|
| 1695 |
|
|
}
|
| 1696 |
|
|
|
| 1697 |
|
|
tp->ScbInUse = 1; /* Set semaphore: SCB in use. */
|
| 1698 |
|
|
|
| 1699 |
|
|
/* Execute SCB and generate IRQ when done. */
|
| 1700 |
|
|
tms380tr_exec_sifcmd(dev, CMD_EXECUTE | CMD_SCB_REQUEST);
|
| 1701 |
|
|
|
| 1702 |
|
|
return;
|
| 1703 |
|
|
}
|
| 1704 |
|
|
|
| 1705 |
|
|
/*
|
| 1706 |
|
|
* IRQ conditions: signal loss on the ring, transmit or receive of beacon
|
| 1707 |
|
|
* frames (disabled if bit 1 of OPEN option is set); report error MAC
|
| 1708 |
|
|
* frame transmit (disabled if bit 2 of OPEN option is set); open or short
|
| 1709 |
|
|
* circuit fault on the lobe is detected; remove MAC frame received;
|
| 1710 |
|
|
* error counter overflow (255); opened adapter is the only station in ring.
|
| 1711 |
|
|
* After some of the IRQs the adapter is closed!
|
| 1712 |
|
|
*/
|
| 1713 |
|
|
static void tms380tr_ring_status_irq(struct net_device *dev)
|
| 1714 |
|
|
{
|
| 1715 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 1716 |
|
|
|
| 1717 |
|
|
tp->CurrentRingStatus = be16_to_cpu((unsigned short)tp->ssb.Parm[0]);
|
| 1718 |
|
|
|
| 1719 |
|
|
/* First: fill up statistics */
|
| 1720 |
|
|
if(tp->ssb.Parm[0] & SIGNAL_LOSS)
|
| 1721 |
|
|
{
|
| 1722 |
|
|
printk(KERN_INFO "%s: Signal Loss\n", dev->name);
|
| 1723 |
|
|
tp->MacStat.line_errors++;
|
| 1724 |
|
|
}
|
| 1725 |
|
|
|
| 1726 |
|
|
/* Adapter is closed, but initialized */
|
| 1727 |
|
|
if(tp->ssb.Parm[0] & LOBE_WIRE_FAULT)
|
| 1728 |
|
|
{
|
| 1729 |
|
|
printk(KERN_INFO "%s: Lobe Wire Fault, Reopen Adapter\n",
|
| 1730 |
|
|
dev->name);
|
| 1731 |
|
|
tp->MacStat.line_errors++;
|
| 1732 |
|
|
}
|
| 1733 |
|
|
|
| 1734 |
|
|
if(tp->ssb.Parm[0] & RING_RECOVERY)
|
| 1735 |
|
|
printk(KERN_INFO "%s: Ring Recovery\n", dev->name);
|
| 1736 |
|
|
|
| 1737 |
|
|
/* Counter overflow: read error log */
|
| 1738 |
|
|
if(tp->ssb.Parm[0] & COUNTER_OVERFLOW)
|
| 1739 |
|
|
{
|
| 1740 |
|
|
printk(KERN_INFO "%s: Counter Overflow\n", dev->name);
|
| 1741 |
|
|
tms380tr_exec_cmd(dev, OC_READ_ERROR_LOG);
|
| 1742 |
|
|
}
|
| 1743 |
|
|
|
| 1744 |
|
|
/* Adapter is closed, but initialized */
|
| 1745 |
|
|
if(tp->ssb.Parm[0] & REMOVE_RECEIVED)
|
| 1746 |
|
|
printk(KERN_INFO "%s: Remove Received, Reopen Adapter\n",
|
| 1747 |
|
|
dev->name);
|
| 1748 |
|
|
|
| 1749 |
|
|
/* Adapter is closed, but initialized */
|
| 1750 |
|
|
if(tp->ssb.Parm[0] & AUTO_REMOVAL_ERROR)
|
| 1751 |
|
|
printk(KERN_INFO "%s: Auto Removal Error, Reopen Adapter\n",
|
| 1752 |
|
|
dev->name);
|
| 1753 |
|
|
|
| 1754 |
|
|
if(tp->ssb.Parm[0] & HARD_ERROR)
|
| 1755 |
|
|
printk(KERN_INFO "%s: Hard Error\n", dev->name);
|
| 1756 |
|
|
|
| 1757 |
|
|
if(tp->ssb.Parm[0] & SOFT_ERROR)
|
| 1758 |
|
|
printk(KERN_INFO "%s: Soft Error\n", dev->name);
|
| 1759 |
|
|
|
| 1760 |
|
|
if(tp->ssb.Parm[0] & TRANSMIT_BEACON)
|
| 1761 |
|
|
printk(KERN_INFO "%s: Transmit Beacon\n", dev->name);
|
| 1762 |
|
|
|
| 1763 |
|
|
if(tp->ssb.Parm[0] & SINGLE_STATION)
|
| 1764 |
|
|
printk(KERN_INFO "%s: Single Station\n", dev->name);
|
| 1765 |
|
|
|
| 1766 |
|
|
/* Check if adapter has been closed */
|
| 1767 |
|
|
if(tp->ssb.Parm[0] & ADAPTER_CLOSED)
|
| 1768 |
|
|
{
|
| 1769 |
|
|
printk(KERN_INFO "%s: Adapter closed (Reopening),"
|
| 1770 |
|
|
"QueueSkb %d, CurrentRingStat %x\n",
|
| 1771 |
|
|
dev->name, tp->QueueSkb, tp->CurrentRingStatus);
|
| 1772 |
|
|
tp->AdapterOpenFlag = 0;
|
| 1773 |
|
|
tms380tr_open_adapter(dev);
|
| 1774 |
|
|
}
|
| 1775 |
|
|
|
| 1776 |
|
|
return;
|
| 1777 |
|
|
}
|
| 1778 |
|
|
|
| 1779 |
|
|
/*
|
| 1780 |
|
|
* Issued if adapter has encountered an unrecoverable hardware
|
| 1781 |
|
|
* or software error.
|
| 1782 |
|
|
*/
|
| 1783 |
|
|
static void tms380tr_chk_irq(struct net_device *dev)
|
| 1784 |
|
|
{
|
| 1785 |
|
|
int i;
|
| 1786 |
|
|
unsigned short AdapterCheckBlock[4];
|
| 1787 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 1788 |
|
|
|
| 1789 |
|
|
tp->AdapterOpenFlag = 0; /* Adapter closed now */
|
| 1790 |
|
|
|
| 1791 |
|
|
/* Page number of adapter memory */
|
| 1792 |
|
|
SIFWRITEW(0x0001, SIFADX);
|
| 1793 |
|
|
/* Address offset */
|
| 1794 |
|
|
SIFWRITEW(CHECKADDR, SIFADR);
|
| 1795 |
|
|
|
| 1796 |
|
|
/* Reading 8 byte adapter check block. */
|
| 1797 |
|
|
for(i = 0; i < 4; i++)
|
| 1798 |
|
|
AdapterCheckBlock[i] = SIFREADW(SIFINC);
|
| 1799 |
|
|
|
| 1800 |
|
|
if(tms380tr_debug > 3)
|
| 1801 |
|
|
{
|
| 1802 |
|
|
printk("%s: AdapterCheckBlock: ", dev->name);
|
| 1803 |
|
|
for (i = 0; i < 4; i++)
|
| 1804 |
|
|
printk("%04X", AdapterCheckBlock[i]);
|
| 1805 |
|
|
printk("\n");
|
| 1806 |
|
|
}
|
| 1807 |
|
|
|
| 1808 |
|
|
switch(AdapterCheckBlock[0])
|
| 1809 |
|
|
{
|
| 1810 |
|
|
case DIO_PARITY:
|
| 1811 |
|
|
printk(KERN_INFO "%s: DIO parity error\n", dev->name);
|
| 1812 |
|
|
break;
|
| 1813 |
|
|
|
| 1814 |
|
|
case DMA_READ_ABORT:
|
| 1815 |
|
|
printk(KERN_INFO "%s DMA read operation aborted:\n",
|
| 1816 |
|
|
dev->name);
|
| 1817 |
|
|
switch (AdapterCheckBlock[1])
|
| 1818 |
|
|
{
|
| 1819 |
|
|
case 0:
|
| 1820 |
|
|
printk(KERN_INFO "Timeout\n");
|
| 1821 |
|
|
printk(KERN_INFO "Address: %04X %04X\n",
|
| 1822 |
|
|
AdapterCheckBlock[2],
|
| 1823 |
|
|
AdapterCheckBlock[3]);
|
| 1824 |
|
|
break;
|
| 1825 |
|
|
|
| 1826 |
|
|
case 1:
|
| 1827 |
|
|
printk(KERN_INFO "Parity error\n");
|
| 1828 |
|
|
printk(KERN_INFO "Address: %04X %04X\n",
|
| 1829 |
|
|
AdapterCheckBlock[2],
|
| 1830 |
|
|
AdapterCheckBlock[3]);
|
| 1831 |
|
|
break;
|
| 1832 |
|
|
|
| 1833 |
|
|
case 2:
|
| 1834 |
|
|
printk(KERN_INFO "Bus error\n");
|
| 1835 |
|
|
printk(KERN_INFO "Address: %04X %04X\n",
|
| 1836 |
|
|
AdapterCheckBlock[2],
|
| 1837 |
|
|
AdapterCheckBlock[3]);
|
| 1838 |
|
|
break;
|
| 1839 |
|
|
|
| 1840 |
|
|
default:
|
| 1841 |
|
|
printk(KERN_INFO "Unknown error.\n");
|
| 1842 |
|
|
break;
|
| 1843 |
|
|
}
|
| 1844 |
|
|
break;
|
| 1845 |
|
|
|
| 1846 |
|
|
case DMA_WRITE_ABORT:
|
| 1847 |
|
|
printk(KERN_INFO "%s: DMA write operation aborted: \n",
|
| 1848 |
|
|
dev->name);
|
| 1849 |
|
|
switch (AdapterCheckBlock[1])
|
| 1850 |
|
|
{
|
| 1851 |
|
|
case 0:
|
| 1852 |
|
|
printk(KERN_INFO "Timeout\n");
|
| 1853 |
|
|
printk(KERN_INFO "Address: %04X %04X\n",
|
| 1854 |
|
|
AdapterCheckBlock[2],
|
| 1855 |
|
|
AdapterCheckBlock[3]);
|
| 1856 |
|
|
break;
|
| 1857 |
|
|
|
| 1858 |
|
|
case 1:
|
| 1859 |
|
|
printk(KERN_INFO "Parity error\n");
|
| 1860 |
|
|
printk(KERN_INFO "Address: %04X %04X\n",
|
| 1861 |
|
|
AdapterCheckBlock[2],
|
| 1862 |
|
|
AdapterCheckBlock[3]);
|
| 1863 |
|
|
break;
|
| 1864 |
|
|
|
| 1865 |
|
|
case 2:
|
| 1866 |
|
|
printk(KERN_INFO "Bus error\n");
|
| 1867 |
|
|
printk(KERN_INFO "Address: %04X %04X\n",
|
| 1868 |
|
|
AdapterCheckBlock[2],
|
| 1869 |
|
|
AdapterCheckBlock[3]);
|
| 1870 |
|
|
break;
|
| 1871 |
|
|
|
| 1872 |
|
|
default:
|
| 1873 |
|
|
printk(KERN_INFO "Unknown error.\n");
|
| 1874 |
|
|
break;
|
| 1875 |
|
|
}
|
| 1876 |
|
|
break;
|
| 1877 |
|
|
|
| 1878 |
|
|
case ILLEGAL_OP_CODE:
|
| 1879 |
|
|
printk("%s: Illegal operation code in firmware\n",
|
| 1880 |
|
|
dev->name);
|
| 1881 |
|
|
/* Parm[0-3]: adapter internal register R13-R15 */
|
| 1882 |
|
|
break;
|
| 1883 |
|
|
|
| 1884 |
|
|
case PARITY_ERRORS:
|
| 1885 |
|
|
printk("%s: Adapter internal bus parity error\n",
|
| 1886 |
|
|
dev->name);
|
| 1887 |
|
|
/* Parm[0-3]: adapter internal register R13-R15 */
|
| 1888 |
|
|
break;
|
| 1889 |
|
|
|
| 1890 |
|
|
case RAM_DATA_ERROR:
|
| 1891 |
|
|
printk("%s: RAM data error\n", dev->name);
|
| 1892 |
|
|
/* Parm[0-1]: MSW/LSW address of RAM location. */
|
| 1893 |
|
|
break;
|
| 1894 |
|
|
|
| 1895 |
|
|
case RAM_PARITY_ERROR:
|
| 1896 |
|
|
printk("%s: RAM parity error\n", dev->name);
|
| 1897 |
|
|
/* Parm[0-1]: MSW/LSW address of RAM location. */
|
| 1898 |
|
|
break;
|
| 1899 |
|
|
|
| 1900 |
|
|
case RING_UNDERRUN:
|
| 1901 |
|
|
printk("%s: Internal DMA underrun detected\n",
|
| 1902 |
|
|
dev->name);
|
| 1903 |
|
|
break;
|
| 1904 |
|
|
|
| 1905 |
|
|
case INVALID_IRQ:
|
| 1906 |
|
|
printk("%s: Unrecognized interrupt detected\n",
|
| 1907 |
|
|
dev->name);
|
| 1908 |
|
|
/* Parm[0-3]: adapter internal register R13-R15 */
|
| 1909 |
|
|
break;
|
| 1910 |
|
|
|
| 1911 |
|
|
case INVALID_ERROR_IRQ:
|
| 1912 |
|
|
printk("%s: Unrecognized error interrupt detected\n",
|
| 1913 |
|
|
dev->name);
|
| 1914 |
|
|
/* Parm[0-3]: adapter internal register R13-R15 */
|
| 1915 |
|
|
break;
|
| 1916 |
|
|
|
| 1917 |
|
|
case INVALID_XOP:
|
| 1918 |
|
|
printk("%s: Unrecognized XOP request detected\n",
|
| 1919 |
|
|
dev->name);
|
| 1920 |
|
|
/* Parm[0-3]: adapter internal register R13-R15 */
|
| 1921 |
|
|
break;
|
| 1922 |
|
|
|
| 1923 |
|
|
default:
|
| 1924 |
|
|
printk("%s: Unknown status", dev->name);
|
| 1925 |
|
|
break;
|
| 1926 |
|
|
}
|
| 1927 |
|
|
|
| 1928 |
|
|
if(tms380tr_chipset_init(dev) == 1)
|
| 1929 |
|
|
{
|
| 1930 |
|
|
/* Restart of firmware successful */
|
| 1931 |
|
|
tp->AdapterOpenFlag = 1;
|
| 1932 |
|
|
}
|
| 1933 |
|
|
|
| 1934 |
|
|
return;
|
| 1935 |
|
|
}
|
| 1936 |
|
|
|
| 1937 |
|
|
/*
|
| 1938 |
|
|
* Internal adapter pointer to RAM data are copied from adapter into
|
| 1939 |
|
|
* host system.
|
| 1940 |
|
|
*/
|
| 1941 |
|
|
static int tms380tr_read_ptr(struct net_device *dev)
|
| 1942 |
|
|
{
|
| 1943 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 1944 |
|
|
unsigned short adapterram;
|
| 1945 |
|
|
|
| 1946 |
|
|
tms380tr_read_ram(dev, (unsigned char *)&tp->intptrs.BurnedInAddrPtr,
|
| 1947 |
|
|
ADAPTER_INT_PTRS, 16);
|
| 1948 |
|
|
tms380tr_read_ram(dev, (unsigned char *)&adapterram,
|
| 1949 |
|
|
cpu_to_be16((unsigned short)tp->intptrs.AdapterRAMPtr), 2);
|
| 1950 |
|
|
return be16_to_cpu(adapterram);
|
| 1951 |
|
|
}
|
| 1952 |
|
|
|
| 1953 |
|
|
/*
|
| 1954 |
|
|
* Reads a number of bytes from adapter to system memory.
|
| 1955 |
|
|
*/
|
| 1956 |
|
|
static void tms380tr_read_ram(struct net_device *dev, unsigned char *Data,
|
| 1957 |
|
|
unsigned short Address, int Length)
|
| 1958 |
|
|
{
|
| 1959 |
|
|
int i;
|
| 1960 |
|
|
unsigned short old_sifadx, old_sifadr, InWord;
|
| 1961 |
|
|
|
| 1962 |
|
|
/* Save the current values */
|
| 1963 |
|
|
old_sifadx = SIFREADW(SIFADX);
|
| 1964 |
|
|
old_sifadr = SIFREADW(SIFADR);
|
| 1965 |
|
|
|
| 1966 |
|
|
/* Page number of adapter memory */
|
| 1967 |
|
|
SIFWRITEW(0x0001, SIFADX);
|
| 1968 |
|
|
/* Address offset in adapter RAM */
|
| 1969 |
|
|
SIFWRITEW(Address, SIFADR);
|
| 1970 |
|
|
|
| 1971 |
|
|
/* Copy len byte from adapter memory to system data area. */
|
| 1972 |
|
|
i = 0;
|
| 1973 |
|
|
for(;;)
|
| 1974 |
|
|
{
|
| 1975 |
|
|
InWord = SIFREADW(SIFINC);
|
| 1976 |
|
|
|
| 1977 |
|
|
*(Data + i) = HIBYTE(InWord); /* Write first byte */
|
| 1978 |
|
|
if(++i == Length) /* All is done break */
|
| 1979 |
|
|
break;
|
| 1980 |
|
|
|
| 1981 |
|
|
*(Data + i) = LOBYTE(InWord); /* Write second byte */
|
| 1982 |
|
|
if (++i == Length) /* All is done break */
|
| 1983 |
|
|
break;
|
| 1984 |
|
|
}
|
| 1985 |
|
|
|
| 1986 |
|
|
/* Restore original values */
|
| 1987 |
|
|
SIFWRITEW(old_sifadx, SIFADX);
|
| 1988 |
|
|
SIFWRITEW(old_sifadr, SIFADR);
|
| 1989 |
|
|
|
| 1990 |
|
|
return;
|
| 1991 |
|
|
}
|
| 1992 |
|
|
|
| 1993 |
|
|
/*
|
| 1994 |
|
|
* Cancel all queued packets in the transmission queue.
|
| 1995 |
|
|
*/
|
| 1996 |
|
|
static void tms380tr_cancel_tx_queue(struct net_local* tp)
|
| 1997 |
|
|
{
|
| 1998 |
|
|
TPL *tpl;
|
| 1999 |
|
|
struct sk_buff *skb;
|
| 2000 |
|
|
|
| 2001 |
|
|
/*
|
| 2002 |
|
|
* NOTE: There must not be an active TRANSMIT command pending, when
|
| 2003 |
|
|
* this function is called.
|
| 2004 |
|
|
*/
|
| 2005 |
|
|
if(tp->TransmitCommandActive)
|
| 2006 |
|
|
return;
|
| 2007 |
|
|
|
| 2008 |
|
|
for(;;)
|
| 2009 |
|
|
{
|
| 2010 |
|
|
tpl = tp->TplBusy;
|
| 2011 |
|
|
if(!tpl->BusyFlag)
|
| 2012 |
|
|
break;
|
| 2013 |
|
|
/* "Remove" TPL from busy list. */
|
| 2014 |
|
|
tp->TplBusy = tpl->NextTPLPtr;
|
| 2015 |
|
|
tms380tr_write_tpl_status(tpl, 0); /* Clear VALID bit */
|
| 2016 |
|
|
tpl->BusyFlag = 0; /* "free" TPL */
|
| 2017 |
|
|
|
| 2018 |
|
|
printk(KERN_INFO "Cancel tx (%08lXh).\n", (unsigned long)tpl);
|
| 2019 |
|
|
if (tpl->DMABuff)
|
| 2020 |
|
|
pci_unmap_single(tp->pdev, tpl->DMABuff, tpl->Skb->len, PCI_DMA_TODEVICE);
|
| 2021 |
|
|
dev_kfree_skb_any(tpl->Skb);
|
| 2022 |
|
|
}
|
| 2023 |
|
|
|
| 2024 |
|
|
for(;;)
|
| 2025 |
|
|
{
|
| 2026 |
|
|
skb = skb_dequeue(&tp->SendSkbQueue);
|
| 2027 |
|
|
if(skb == NULL)
|
| 2028 |
|
|
break;
|
| 2029 |
|
|
tp->QueueSkb++;
|
| 2030 |
|
|
dev_kfree_skb_any(skb);
|
| 2031 |
|
|
}
|
| 2032 |
|
|
|
| 2033 |
|
|
return;
|
| 2034 |
|
|
}
|
| 2035 |
|
|
|
| 2036 |
|
|
/*
|
| 2037 |
|
|
* This function is called whenever a transmit interrupt is generated by the
|
| 2038 |
|
|
* adapter. For a command complete interrupt, it is checked if we have to
|
| 2039 |
|
|
* issue a new transmit command or not.
|
| 2040 |
|
|
*/
|
| 2041 |
|
|
static void tms380tr_tx_status_irq(struct net_device *dev)
|
| 2042 |
|
|
{
|
| 2043 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 2044 |
|
|
unsigned char HighByte, HighAc, LowAc;
|
| 2045 |
|
|
TPL *tpl;
|
| 2046 |
|
|
|
| 2047 |
|
|
/* NOTE: At this point the SSB from TRANSMIT STATUS is no longer
|
| 2048 |
|
|
* available, because the CLEAR SSB command has already been issued.
|
| 2049 |
|
|
*
|
| 2050 |
|
|
* Process all complete transmissions.
|
| 2051 |
|
|
*/
|
| 2052 |
|
|
|
| 2053 |
|
|
for(;;)
|
| 2054 |
|
|
{
|
| 2055 |
|
|
tpl = tp->TplBusy;
|
| 2056 |
|
|
if(!tpl->BusyFlag || (tpl->Status
|
| 2057 |
|
|
& (TX_VALID | TX_FRAME_COMPLETE))
|
| 2058 |
|
|
!= TX_FRAME_COMPLETE)
|
| 2059 |
|
|
{
|
| 2060 |
|
|
break;
|
| 2061 |
|
|
}
|
| 2062 |
|
|
|
| 2063 |
|
|
/* "Remove" TPL from busy list. */
|
| 2064 |
|
|
tp->TplBusy = tpl->NextTPLPtr ;
|
| 2065 |
|
|
|
| 2066 |
|
|
/* Check the transmit status field only for directed frames*/
|
| 2067 |
|
|
if(DIRECTED_FRAME(tpl) && (tpl->Status & TX_ERROR) == 0)
|
| 2068 |
|
|
{
|
| 2069 |
|
|
HighByte = GET_TRANSMIT_STATUS_HIGH_BYTE(tpl->Status);
|
| 2070 |
|
|
HighAc = GET_FRAME_STATUS_HIGH_AC(HighByte);
|
| 2071 |
|
|
LowAc = GET_FRAME_STATUS_LOW_AC(HighByte);
|
| 2072 |
|
|
|
| 2073 |
|
|
if((HighAc != LowAc) || (HighAc == AC_NOT_RECOGNIZED))
|
| 2074 |
|
|
{
|
| 2075 |
|
|
printk(KERN_INFO "%s: (DA=%08lX not recognized)",
|
| 2076 |
|
|
dev->name,
|
| 2077 |
|
|
*(unsigned long *)&tpl->MData[2+2]);
|
| 2078 |
|
|
}
|
| 2079 |
|
|
else
|
| 2080 |
|
|
{
|
| 2081 |
|
|
if(tms380tr_debug > 3)
|
| 2082 |
|
|
printk("%s: Directed frame tx'd\n",
|
| 2083 |
|
|
dev->name);
|
| 2084 |
|
|
}
|
| 2085 |
|
|
}
|
| 2086 |
|
|
else
|
| 2087 |
|
|
{
|
| 2088 |
|
|
if(!DIRECTED_FRAME(tpl))
|
| 2089 |
|
|
{
|
| 2090 |
|
|
if(tms380tr_debug > 3)
|
| 2091 |
|
|
printk("%s: Broadcast frame tx'd\n",
|
| 2092 |
|
|
dev->name);
|
| 2093 |
|
|
}
|
| 2094 |
|
|
}
|
| 2095 |
|
|
|
| 2096 |
|
|
tp->MacStat.tx_packets++;
|
| 2097 |
|
|
if (tpl->DMABuff)
|
| 2098 |
|
|
pci_unmap_single(tp->pdev, tpl->DMABuff, tpl->Skb->len, PCI_DMA_TODEVICE);
|
| 2099 |
|
|
dev_kfree_skb_irq(tpl->Skb);
|
| 2100 |
|
|
tpl->BusyFlag = 0; /* "free" TPL */
|
| 2101 |
|
|
}
|
| 2102 |
|
|
|
| 2103 |
|
|
netif_wake_queue(dev);
|
| 2104 |
|
|
if(tp->QueueSkb < MAX_TX_QUEUE)
|
| 2105 |
|
|
tms380tr_hardware_send_packet(dev, tp);
|
| 2106 |
|
|
return;
|
| 2107 |
|
|
}
|
| 2108 |
|
|
|
| 2109 |
|
|
/*
|
| 2110 |
|
|
* Called if a frame receive interrupt is generated by the adapter.
|
| 2111 |
|
|
* Check if the frame is valid and indicate it to system.
|
| 2112 |
|
|
*/
|
| 2113 |
|
|
static void tms380tr_rcv_status_irq(struct net_device *dev)
|
| 2114 |
|
|
{
|
| 2115 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 2116 |
|
|
unsigned char *ReceiveDataPtr;
|
| 2117 |
|
|
struct sk_buff *skb;
|
| 2118 |
|
|
unsigned int Length, Length2;
|
| 2119 |
|
|
RPL *rpl;
|
| 2120 |
|
|
RPL *SaveHead;
|
| 2121 |
|
|
dma_addr_t dmabuf;
|
| 2122 |
|
|
|
| 2123 |
|
|
/* NOTE: At this point the SSB from RECEIVE STATUS is no longer
|
| 2124 |
|
|
* available, because the CLEAR SSB command has already been issued.
|
| 2125 |
|
|
*
|
| 2126 |
|
|
* Process all complete receives.
|
| 2127 |
|
|
*/
|
| 2128 |
|
|
|
| 2129 |
|
|
for(;;)
|
| 2130 |
|
|
{
|
| 2131 |
|
|
rpl = tp->RplHead;
|
| 2132 |
|
|
if(rpl->Status & RX_VALID)
|
| 2133 |
|
|
break; /* RPL still in use by adapter */
|
| 2134 |
|
|
|
| 2135 |
|
|
/* Forward RPLHead pointer to next list. */
|
| 2136 |
|
|
SaveHead = tp->RplHead;
|
| 2137 |
|
|
tp->RplHead = rpl->NextRPLPtr;
|
| 2138 |
|
|
|
| 2139 |
|
|
/* Get the frame size (Byte swap for Intel).
|
| 2140 |
|
|
* Do this early (see workaround comment below)
|
| 2141 |
|
|
*/
|
| 2142 |
|
|
Length = be16_to_cpu((unsigned short)rpl->FrameSize);
|
| 2143 |
|
|
|
| 2144 |
|
|
/* Check if the Frame_Start, Frame_End and
|
| 2145 |
|
|
* Frame_Complete bits are set.
|
| 2146 |
|
|
*/
|
| 2147 |
|
|
if((rpl->Status & VALID_SINGLE_BUFFER_FRAME)
|
| 2148 |
|
|
== VALID_SINGLE_BUFFER_FRAME)
|
| 2149 |
|
|
{
|
| 2150 |
|
|
ReceiveDataPtr = rpl->MData;
|
| 2151 |
|
|
|
| 2152 |
|
|
/* Workaround for delayed write of FrameSize on ISA
|
| 2153 |
|
|
* (FrameSize is false but valid-bit is reset)
|
| 2154 |
|
|
* Frame size is set to zero when the RPL is freed.
|
| 2155 |
|
|
* Length2 is there because there have also been
|
| 2156 |
|
|
* cases where the FrameSize was partially written
|
| 2157 |
|
|
*/
|
| 2158 |
|
|
Length2 = be16_to_cpu((unsigned short)rpl->FrameSize);
|
| 2159 |
|
|
|
| 2160 |
|
|
if(Length == 0 || Length != Length2)
|
| 2161 |
|
|
{
|
| 2162 |
|
|
tp->RplHead = SaveHead;
|
| 2163 |
|
|
break; /* Return to tms380tr_interrupt */
|
| 2164 |
|
|
}
|
| 2165 |
|
|
tms380tr_update_rcv_stats(tp,ReceiveDataPtr,Length);
|
| 2166 |
|
|
|
| 2167 |
|
|
if(tms380tr_debug > 3)
|
| 2168 |
|
|
printk("%s: Packet Length %04X (%d)\n",
|
| 2169 |
|
|
dev->name, Length, Length);
|
| 2170 |
|
|
|
| 2171 |
|
|
/* Indicate the received frame to system the
|
| 2172 |
|
|
* adapter does the Source-Routing padding for
|
| 2173 |
|
|
* us. See: OpenOptions in tms380tr_init_opb()
|
| 2174 |
|
|
*/
|
| 2175 |
|
|
skb = rpl->Skb;
|
| 2176 |
|
|
if(rpl->SkbStat == SKB_UNAVAILABLE)
|
| 2177 |
|
|
{
|
| 2178 |
|
|
/* Try again to allocate skb */
|
| 2179 |
|
|
skb = dev_alloc_skb(tp->MaxPacketSize);
|
| 2180 |
|
|
if(skb == NULL)
|
| 2181 |
|
|
{
|
| 2182 |
|
|
/* Update Stats ?? */
|
| 2183 |
|
|
}
|
| 2184 |
|
|
else
|
| 2185 |
|
|
{
|
| 2186 |
|
|
skb->dev = dev;
|
| 2187 |
|
|
skb_put(skb, tp->MaxPacketSize);
|
| 2188 |
|
|
rpl->SkbStat = SKB_DATA_COPY;
|
| 2189 |
|
|
ReceiveDataPtr = rpl->MData;
|
| 2190 |
|
|
}
|
| 2191 |
|
|
}
|
| 2192 |
|
|
|
| 2193 |
|
|
if(skb && (rpl->SkbStat == SKB_DATA_COPY
|
| 2194 |
|
|
|| rpl->SkbStat == SKB_DMA_DIRECT))
|
| 2195 |
|
|
{
|
| 2196 |
|
|
if(rpl->SkbStat == SKB_DATA_COPY)
|
| 2197 |
|
|
memcpy(skb->data, ReceiveDataPtr, Length);
|
| 2198 |
|
|
|
| 2199 |
|
|
/* Deliver frame to system */
|
| 2200 |
|
|
rpl->Skb = NULL;
|
| 2201 |
|
|
skb_trim(skb,Length);
|
| 2202 |
|
|
skb->protocol = tr_type_trans(skb,dev);
|
| 2203 |
|
|
netif_rx(skb);
|
| 2204 |
|
|
dev->last_rx = jiffies;
|
| 2205 |
|
|
}
|
| 2206 |
|
|
}
|
| 2207 |
|
|
else /* Invalid frame */
|
| 2208 |
|
|
{
|
| 2209 |
|
|
if(rpl->Skb != NULL)
|
| 2210 |
|
|
dev_kfree_skb_irq(rpl->Skb);
|
| 2211 |
|
|
|
| 2212 |
|
|
/* Skip list. */
|
| 2213 |
|
|
if(rpl->Status & RX_START_FRAME)
|
| 2214 |
|
|
/* Frame start bit is set -> overflow. */
|
| 2215 |
|
|
tp->MacStat.rx_errors++;
|
| 2216 |
|
|
}
|
| 2217 |
|
|
if (rpl->DMABuff)
|
| 2218 |
|
|
pci_unmap_single(tp->pdev, rpl->DMABuff, tp->MaxPacketSize, PCI_DMA_TODEVICE);
|
| 2219 |
|
|
rpl->DMABuff = 0;
|
| 2220 |
|
|
|
| 2221 |
|
|
/* Allocate new skb for rpl */
|
| 2222 |
|
|
rpl->Skb = dev_alloc_skb(tp->MaxPacketSize);
|
| 2223 |
|
|
/* skb == NULL ? then use local buffer */
|
| 2224 |
|
|
if(rpl->Skb == NULL)
|
| 2225 |
|
|
{
|
| 2226 |
|
|
rpl->SkbStat = SKB_UNAVAILABLE;
|
| 2227 |
|
|
rpl->FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[rpl->RPLIndex] - (char *)tp) + tp->dmabuffer);
|
| 2228 |
|
|
rpl->MData = tp->LocalRxBuffers[rpl->RPLIndex];
|
| 2229 |
|
|
}
|
| 2230 |
|
|
else /* skb != NULL */
|
| 2231 |
|
|
{
|
| 2232 |
|
|
rpl->Skb->dev = dev;
|
| 2233 |
|
|
skb_put(rpl->Skb, tp->MaxPacketSize);
|
| 2234 |
|
|
|
| 2235 |
|
|
/* Data unreachable for DMA ? then use local buffer */
|
| 2236 |
|
|
dmabuf = pci_map_single(tp->pdev, rpl->Skb->data, tp->MaxPacketSize, PCI_DMA_FROMDEVICE);
|
| 2237 |
|
|
if(tp->dmalimit && (dmabuf + tp->MaxPacketSize > tp->dmalimit))
|
| 2238 |
|
|
{
|
| 2239 |
|
|
rpl->SkbStat = SKB_DATA_COPY;
|
| 2240 |
|
|
rpl->FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[rpl->RPLIndex] - (char *)tp) + tp->dmabuffer);
|
| 2241 |
|
|
rpl->MData = tp->LocalRxBuffers[rpl->RPLIndex];
|
| 2242 |
|
|
}
|
| 2243 |
|
|
else
|
| 2244 |
|
|
{
|
| 2245 |
|
|
/* DMA directly in skb->data */
|
| 2246 |
|
|
rpl->SkbStat = SKB_DMA_DIRECT;
|
| 2247 |
|
|
rpl->FragList[0].DataAddr = htonl(dmabuf);
|
| 2248 |
|
|
rpl->MData = rpl->Skb->data;
|
| 2249 |
|
|
rpl->DMABuff = dmabuf;
|
| 2250 |
|
|
}
|
| 2251 |
|
|
}
|
| 2252 |
|
|
|
| 2253 |
|
|
rpl->FragList[0].DataCount = cpu_to_be16((unsigned short)tp->MaxPacketSize);
|
| 2254 |
|
|
rpl->FrameSize = 0;
|
| 2255 |
|
|
|
| 2256 |
|
|
/* Pass the last RPL back to the adapter */
|
| 2257 |
|
|
tp->RplTail->FrameSize = 0;
|
| 2258 |
|
|
|
| 2259 |
|
|
/* Reset the CSTAT field in the list. */
|
| 2260 |
|
|
tms380tr_write_rpl_status(tp->RplTail, RX_VALID | RX_FRAME_IRQ);
|
| 2261 |
|
|
|
| 2262 |
|
|
/* Current RPL becomes last one in list. */
|
| 2263 |
|
|
tp->RplTail = tp->RplTail->NextRPLPtr;
|
| 2264 |
|
|
|
| 2265 |
|
|
/* Inform adapter about RPL valid. */
|
| 2266 |
|
|
tms380tr_exec_sifcmd(dev, CMD_RX_VALID);
|
| 2267 |
|
|
}
|
| 2268 |
|
|
|
| 2269 |
|
|
return;
|
| 2270 |
|
|
}
|
| 2271 |
|
|
|
| 2272 |
|
|
/*
|
| 2273 |
|
|
* This function should be used whenever the status of any RPL must be
|
| 2274 |
|
|
* modified by the driver, because the compiler may otherwise change the
|
| 2275 |
|
|
* order of instructions such that writing the RPL status may be executed
|
| 2276 |
|
|
* at an undesireable time. When this function is used, the status is
|
| 2277 |
|
|
* always written when the function is called.
|
| 2278 |
|
|
*/
|
| 2279 |
|
|
static void tms380tr_write_rpl_status(RPL *rpl, unsigned int Status)
|
| 2280 |
|
|
{
|
| 2281 |
|
|
rpl->Status = Status;
|
| 2282 |
|
|
|
| 2283 |
|
|
return;
|
| 2284 |
|
|
}
|
| 2285 |
|
|
|
| 2286 |
|
|
/*
|
| 2287 |
|
|
* The function updates the statistic counters in mac->MacStat.
|
| 2288 |
|
|
* It differtiates between directed and broadcast/multicast ( ==functional)
|
| 2289 |
|
|
* frames.
|
| 2290 |
|
|
*/
|
| 2291 |
|
|
static void tms380tr_update_rcv_stats(struct net_local *tp, unsigned char DataPtr[],
|
| 2292 |
|
|
unsigned int Length)
|
| 2293 |
|
|
{
|
| 2294 |
|
|
tp->MacStat.rx_packets++;
|
| 2295 |
|
|
tp->MacStat.rx_bytes += Length;
|
| 2296 |
|
|
|
| 2297 |
|
|
/* Test functional bit */
|
| 2298 |
|
|
if(DataPtr[2] & GROUP_BIT)
|
| 2299 |
|
|
tp->MacStat.multicast++;
|
| 2300 |
|
|
|
| 2301 |
|
|
return;
|
| 2302 |
|
|
}
|
| 2303 |
|
|
|
| 2304 |
|
|
static int tms380tr_set_mac_address(struct net_device *dev, void *addr)
|
| 2305 |
|
|
{
|
| 2306 |
|
|
struct net_local *tp = (struct net_local *)dev->priv;
|
| 2307 |
|
|
struct sockaddr *saddr = addr;
|
| 2308 |
|
|
|
| 2309 |
|
|
if (tp->AdapterOpenFlag || tp->AdapterVirtOpenFlag) {
|
| 2310 |
|
|
printk(KERN_WARNING "%s: Cannot set MAC/LAA address while card is open\n", dev->name);
|
| 2311 |
|
|
return -EIO;
|
| 2312 |
|
|
}
|
| 2313 |
|
|
memcpy(dev->dev_addr, saddr->sa_data, dev->addr_len);
|
| 2314 |
|
|
return 0;
|
| 2315 |
|
|
}
|
| 2316 |
|
|
|
| 2317 |
|
|
#if TMS380TR_DEBUG > 0
|
| 2318 |
|
|
/*
|
| 2319 |
|
|
* Dump Packet (data)
|
| 2320 |
|
|
*/
|
| 2321 |
|
|
static void tms380tr_dump(unsigned char *Data, int length)
|
| 2322 |
|
|
{
|
| 2323 |
|
|
int i, j;
|
| 2324 |
|
|
|
| 2325 |
|
|
for (i = 0, j = 0; i < length / 8; i++, j += 8)
|
| 2326 |
|
|
{
|
| 2327 |
|
|
printk(KERN_DEBUG "%02x %02x %02x %02x %02x %02x %02x %02x\n",
|
| 2328 |
|
|
Data[j+0],Data[j+1],Data[j+2],Data[j+3],
|
| 2329 |
|
|
Data[j+4],Data[j+5],Data[j+6],Data[j+7]);
|
| 2330 |
|
|
}
|
| 2331 |
|
|
|
| 2332 |
|
|
return;
|
| 2333 |
|
|
}
|
| 2334 |
|
|
#endif
|
| 2335 |
|
|
|
| 2336 |
|
|
void tmsdev_term(struct net_device *dev)
|
| 2337 |
|
|
{
|
| 2338 |
|
|
struct net_local *tp;
|
| 2339 |
|
|
|
| 2340 |
|
|
tp = (struct net_local *) dev->priv;
|
| 2341 |
|
|
pci_unmap_single(tp->pdev, tp->dmabuffer, sizeof(struct net_local),
|
| 2342 |
|
|
PCI_DMA_BIDIRECTIONAL);
|
| 2343 |
|
|
kfree(dev->priv);
|
| 2344 |
|
|
}
|
| 2345 |
|
|
|
| 2346 |
|
|
int tmsdev_init(struct net_device *dev, unsigned long dmalimit,
|
| 2347 |
|
|
struct pci_dev *pdev)
|
| 2348 |
|
|
{
|
| 2349 |
|
|
if (dev->priv == NULL)
|
| 2350 |
|
|
{
|
| 2351 |
|
|
struct net_local *tms_local;
|
| 2352 |
|
|
dma_addr_t buffer;
|
| 2353 |
|
|
|
| 2354 |
|
|
dev->priv = kmalloc(sizeof(struct net_local), GFP_KERNEL | GFP_DMA);
|
| 2355 |
|
|
if (dev->priv == NULL)
|
| 2356 |
|
|
{
|
| 2357 |
|
|
printk("%s: Out of memory for DMA\n",
|
| 2358 |
|
|
dev->name);
|
| 2359 |
|
|
return -ENOMEM;
|
| 2360 |
|
|
}
|
| 2361 |
|
|
memset(dev->priv, 0, sizeof(struct net_local));
|
| 2362 |
|
|
tms_local = (struct net_local *)dev->priv;
|
| 2363 |
|
|
init_waitqueue_head(&tms_local->wait_for_tok_int);
|
| 2364 |
|
|
tms_local->dmalimit = dmalimit;
|
| 2365 |
|
|
tms_local->pdev = pdev;
|
| 2366 |
|
|
buffer = pci_map_single(pdev, (void *)tms_local,
|
| 2367 |
|
|
sizeof(struct net_local), PCI_DMA_BIDIRECTIONAL);
|
| 2368 |
|
|
if (buffer + sizeof(struct net_local) > dmalimit)
|
| 2369 |
|
|
{
|
| 2370 |
|
|
printk("%s: Memory not accessible for DMA\n",
|
| 2371 |
|
|
dev->name);
|
| 2372 |
|
|
tmsdev_term(dev);
|
| 2373 |
|
|
return -ENOMEM;
|
| 2374 |
|
|
}
|
| 2375 |
|
|
tms_local->dmabuffer = buffer;
|
| 2376 |
|
|
}
|
| 2377 |
|
|
|
| 2378 |
|
|
/* These can be overridden by the card driver if needed */
|
| 2379 |
|
|
dev->init = tms380tr_init_card;
|
| 2380 |
|
|
dev->open = tms380tr_open;
|
| 2381 |
|
|
dev->stop = tms380tr_close;
|
| 2382 |
|
|
dev->do_ioctl = NULL;
|
| 2383 |
|
|
dev->hard_start_xmit = tms380tr_send_packet;
|
| 2384 |
|
|
dev->tx_timeout = tms380tr_timeout;
|
| 2385 |
|
|
dev->watchdog_timeo = HZ;
|
| 2386 |
|
|
dev->get_stats = tms380tr_get_stats;
|
| 2387 |
|
|
dev->set_multicast_list = &tms380tr_set_multicast_list;
|
| 2388 |
|
|
dev->set_mac_address = tms380tr_set_mac_address;
|
| 2389 |
|
|
|
| 2390 |
|
|
return 0;
|
| 2391 |
|
|
}
|
| 2392 |
|
|
|
| 2393 |
|
|
#ifdef MODULE
|
| 2394 |
|
|
|
| 2395 |
|
|
EXPORT_SYMBOL(tms380tr_open);
|
| 2396 |
|
|
EXPORT_SYMBOL(tms380tr_close);
|
| 2397 |
|
|
EXPORT_SYMBOL(tms380tr_interrupt);
|
| 2398 |
|
|
EXPORT_SYMBOL(tmsdev_init);
|
| 2399 |
|
|
EXPORT_SYMBOL(tmsdev_term);
|
| 2400 |
|
|
EXPORT_SYMBOL(tms380tr_wait);
|
| 2401 |
|
|
|
| 2402 |
|
|
struct module *TMS380_module = NULL;
|
| 2403 |
|
|
|
| 2404 |
|
|
int init_module(void)
|
| 2405 |
|
|
{
|
| 2406 |
|
|
printk("%s", version);
|
| 2407 |
|
|
|
| 2408 |
|
|
TMS380_module = &__this_module;
|
| 2409 |
|
|
return 0;
|
| 2410 |
|
|
}
|
| 2411 |
|
|
|
| 2412 |
|
|
void cleanup_module(void)
|
| 2413 |
|
|
{
|
| 2414 |
|
|
TMS380_module = NULL;
|
| 2415 |
|
|
}
|
| 2416 |
|
|
#endif
|
| 2417 |
|
|
|
| 2418 |
|
|
MODULE_LICENSE("GPL");
|
| 2419 |
|
|
|
| 2420 |
|
|
|
| 2421 |
|
|
/*
|
| 2422 |
|
|
* Local variables:
|
| 2423 |
|
|
* compile-command: "gcc -DMODVERSIONS -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer -I/usr/src/linux/drivers/net/tokenring/ -c tms380tr.c"
|
| 2424 |
|
|
* alt-compile-command: "gcc -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer -I/usr/src/linux/drivers/net/tokenring/ -c tms380tr.c"
|
| 2425 |
|
|
* c-set-style "K&R"
|
| 2426 |
|
|
* c-indent-level: 8
|
| 2427 |
|
|
* c-basic-offset: 8
|
| 2428 |
|
|
* tab-width: 8
|
| 2429 |
|
|
* End:
|
| 2430 |
|
|
*/
|
