Linux Token Ring Project site for the latest information at
http://www.linuxtr.net
+IBM Lanstreamer chipset PCI adapter support
+CONFIG_IBMLS
+ This is support for IBM Lanstreamer PCI Token Ring Cards.
+
+ If you have such an adapter, say Y and read the Token-Ring mini-HOWTO
+ available via FTP (user:anonymous) from
+ ftp://metalab.unc/edu/pub/Linux/docs/HOWTO.
+
+ This driver is also available as a modules ( = code which can be
+ inserted in and removed from the running kernel whenever you want).
+ The modules will be called lanstreamer.o. If you want to compile it as
+ a module, say M here and read Documentation/modules.txt.
+
SysKonnect adapter support
CONFIG_SKTR
This is support for all SysKonnect Token Ring cards, specifically
--- /dev/null
+ALS-007/ALS-100/ALS-200 based sound cards
+=========================================
+
+Support for sound cards based around the Avance Logic
+ALS-007/ALS-100/ALS-200 chip is included. These chips are a single
+chip PnP sound solution which is mostly hardware compatible with the
+Sound Blaster 16 card, with most differences occurring in the use of
+the mixer registers. For this reason the ALS code is integrated
+as part of the Sound Blaster 16 driver (adding only 800 bytes to the
+SB16 driver).
+
+To use an ALS sound card under Linux, enable the following options in the
+sound configuration section of the kernel config:
+ - 100% Sound Blaster compatibles (SB16/32/64, ESS, Jazz16) support
+ - FM synthesizer (YM3812/OPL-3) support
+Since the ALS-007/100/200 is a PnP card, the sound driver probably should be
+compiled as a module, with the isapnptools used to wake up the sound card.
+Set the "I/O base for SB", "Sound Blaster IRQ" and "Sound Blaster DMA" (8 bit -
+either 0, 1 or 3) to the values used in your particular installation (they
+should match the values used to configure the card using isapnp). The
+ALS-007 does NOT implement 16 bit DMA, so the "Sound Blaster 16 bit DMA"
+should be set to -1. If you wish to use the external MPU-401 interface on
+the card, "MPU401 I/O base of SB16" and "SB MPU401 IRQ" should be set to
+the appropriate values for your installation. (Note that the ALS-007
+requires a separate IRQ for the MPU-401, so don't specify -1 here). (Note
+that the base port of the internal FM synth is fixed at 0x388 on the ALS007;
+in any case the FM synth location cannot be set in the kernel configuration).
+
+The resulting sound driver will provide the following capabilities:
+ - 8 and 16 bit audio playback
+ - 8 and 16 bit audio recording
+ - Software selection of record source (line in, CD, FM, mic, master)
+ - Record and playback of midi data via the external MPU-401
+ - Playback of midi data using inbuilt FM synthesizer
+ - Control of the ALS-007 mixer via any OSS-compatible mixer programs.
+ Controls available are Master (L&R), Line in (L&R), CD (L&R),
+ DSP/PCM/audio out (L&R), FM (L&R) and Mic in (mono).
+
+Jonathan Woithe
+jwoithe@physics.adelaide.edu.au
+30 March 1998
+
+Modified 2000-02-26 by Dave Forrest, drf5n@virginia.edu to add ALS100/ALS200
+++ /dev/null
-ALS-007/ALS-100/ALS-200 based sound cards
-=========================
-
-Support for sound cards based around the Avance Logic
-ALS-007/ALS-100/ALS-200 chip is included. These chips are a single
-chip PnP sound solution which is mostly hardware compatible with the
-Sound Blaster 16 card, with most differences occurring in the use of
-the mixer registers. For this reason the ALS code is integrated
-as part of the Sound Blaster 16 driver (adding only 800 bytes to the
-SB16 driver).
-
-To use an ALS sound card under Linux, enable the following options in the
-sound configuration section of the kernel config:
- - 100% Sound Blaster compatibles (SB16/32/64, ESS, Jazz16) support
- - FM synthesizer (YM3812/OPL-3) support
-Since the ALS-007/100/200 is a PnP card, the sound driver probably should be
-compiled as a module, with the isapnptools used to wake up the sound card.
-Set the "I/O base for SB", "Sound Blaster IRQ" and "Sound Blaster DMA" (8 bit -
-either 0, 1 or 3) to the values used in your particular installation (they
-should match the values used to configure the card using isapnp). The
-ALS-007 does NOT implement 16 bit DMA, so the "Sound Blaster 16 bit DMA"
-should be set to -1. If you wish to use the external MPU-401 interface on
-the card, "MPU401 I/O base of SB16" and "SB MPU401 IRQ" should be set to
-the appropriate values for your installation. (Note that the ALS-007
-requires a separate IRQ for the MPU-401, so don't specify -1 here). (Note
-that the base port of the internal FM synth is fixed at 0x388 on the ALS007;
-in any case the FM synth location cannot be set in the kernel configuration).
-
-The resulting sound driver will provide the following capabilities:
- - 8 and 16 bit audio playback
- - 8 and 16 bit audio recording
- - Software selection of record source (line in, CD, FM, mic, master)
- - Record and playback of midi data via the external MPU-401
- - Playback of midi data using inbuilt FM synthesizer
- - Control of the ALS-007 mixer via any OSS-compatible mixer programs.
- Controls available are Master (L&R), Line in (L&R), CD (L&R),
- DSP/PCM/audio out (L&R), FM (L&R) and Mic in (mono).
-
-Jonathan Woithe
-jwoithe@physics.adelaide.edu.au
-30 March 1998
-
-Modified 2000-02-26 by Dave Forrest, drf5n@virginia.edu to add ALS100/ALS200
L: linux-eata@i-connect.net, linux-scsi@vger.rutgers.edu
S: Maintained
+EEPRO100 NETWORK DRIVER
+P: Andrey V. Savochkin
+M: saw@saw.sw.com.sg
+S: Maintained
+
ETHEREXPRESS-16 NETWORK DRIVER
P: Philip Blundell
M: Philip.Blundell@pobox.com
L: linux-hams@vger.rutgers.edu
S: Maintained
+KERNEL (2.2.XX TREE)
+P: Alan Cox
+M: Alan.Cox@linux.org
+L: linux-kernel@vger.rutgers.edu
+W: http://www.kernel.org/pub/linux/kernel/alan/
+S: Maintained
+
KERNEL AUTOMOUNTER (AUTOFS)
P: H. Peter Anvin
M: hpa@zytor.com
OPL3-SA2, SA3, and SAx DRIVER
P: Scott Murray
-M: scottm@interlog.com
+M: scott@spiteful.org
L: linux-sound@vger.rutgers.edu
S: Maintained
VERSION = 2
PATCHLEVEL = 2
SUBLEVEL = 15
-EXTRAVERSION = pre11
+EXTRAVERSION = pre13
ARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/)
-o "$CONFIG_ALPHA_NORITAKE" = "y" -o "$CONFIG_ALPHA_PC164" = "y" \
-o "$CONFIG_ALPHA_LX164" = "y" -o "$CONFIG_ALPHA_SX164" = "y" \
-o "$CONFIG_ALPHA_DP264" = "y" -o "$CONFIG_ALPHA_RAWHIDE" = "y" \
- -o "$CONFIG_ALPHA_EIGER" = "y" ]
+ -o "$CONFIG_ALPHA_EIGER" = "y" -o "$CONFIG_ALPHA_NAUTILUS" = "y" ]
then
bool 'Use SRM as bootloader' CONFIG_ALPHA_SRM
if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
{
STANDARD_INIT_IRQ_PROLOG;
+ if (alpha_using_srm) {
+ alpha_mv.device_interrupt = srm_device_interrupt;
+ alpha_mv.kill_arch = generic_kill_arch;
+ }
+
enable_irq(2); /* enable cascade */
disable_irq(8);
}
case LINUX_REBOOT_CMD_RESTART:
{
int v;
- irongate_hose_write_config_byte(0, 0x07<<3, 0x43, &v, 0);
+ irongate_hose_read_config_byte(0, 0x07<<3, 0x43, &v, 0);
irongate_hose_write_config_byte(0, 0x07<<3, 0x43, v | 0x80, 0);
outb(1, 0x92);
outb(0, 0x92);
/* EV4 does not implement anything except normal
rounding. Everything else will come here as
an illegal instruction. Emulate them. */
- if (alpha_fp_emul(regs.pc - 4))
+ if (alpha_fp_emul(regs.pc))
+ {
+ /* Increment the PC so that the program in
+ user space continues */
+ regs.pc += 4;
return;
+ }
}
send_sig(SIGILL, current, 1);
break;
/*
* Spin waiting for completion
+ *
+ * It turns out Intel seem to have been tuning their chips
+ * a little. The PIII-500+ seem to execute this little bit
+ * way faster than their older silicon. We now add on a factor
+ * guessed from the TSC calibration.
*/
- stuck = 50000000;
+ stuck = 50000000 + cpu_data[cpu].loops_per_sec/2;
while (smp_invalidate_needed) {
/*
* Take care of "crossing" invalidates
*/
if (test_bit(cpu, &smp_invalidate_needed))
- clear_bit(cpu, &smp_invalidate_needed);
+ clear_bit(cpu, &smp_invalidate_needed);
--stuck;
if (!stuck) {
printk("stuck on TLB IPI wait (CPU#%d)\n",cpu);
up(&mm->mmap_sem);
if (error_code & 4)
{
- if (!((regs->eflags >> 12) & 3))
+ if (tsk->oom_kill_try++ > 10 ||
+ !((regs->eflags >> 12) & 3))
{
printk("VM: killing process %s\n", tsk->comm);
do_exit(SIGKILL);
*/
printk("VM: terminating process %s\n", tsk->comm);
force_sig(SIGTERM, current);
+ if (tsk->oom_kill_try > 1)
+ {
+ tsk->policy |= SCHED_YIELD;
+ schedule();
+ }
return;
}
}
/*
* Copyright (C) 1996 Paul Mackerras.
*/
-
+#include <linux/config.h>
#include <linux/kernel.h>
#include <asm/bitops.h>
+/*
+ * The atomic bit operations here generally act as memory barriers also
+ * on SMP, since the code that calls them expects them to in many cases.
+ * (x86 processors don't move loads past lock instructions and don't
+ * reorder stores.)
+ */
+#ifdef CONFIG_SMP
+#define SMP_WMB __asm__ __volatile__("eieio")
+#define SMP_MB __asm__ __volatile__("sync")
+#else
+#define SMP_WMB do { } while (0)
+#define SMP_MB do { } while (0)
+#endif /* CONFIG_SMP */
+
/*
* I left these here since the problems with "cc" make it difficult to keep
* them in bitops.h -- Cort
if ((unsigned long)addr & 3)
printk(KERN_ERR "set_bit(%x, %p)\n", nr, addr);
+ SMP_WMB;
__asm__ __volatile__("\n\
1: lwarx %0,0,%2
or %0,%0,%1
: "=&r" (t) /*, "=m" (*p)*/
: "r" (mask), "r" (p)
: "cc");
+ SMP_MB;
}
void clear_bit(int nr, volatile void *addr)
if ((unsigned long)addr & 3)
printk(KERN_ERR "clear_bit(%x, %p)\n", nr, addr);
+ SMP_WMB;
__asm__ __volatile__("\n\
1: lwarx %0,0,%2
andc %0,%0,%1
: "=&r" (t) /*, "=m" (*p)*/
: "r" (mask), "r" (p)
: "cc");
+ SMP_MB;
}
void change_bit(int nr, volatile void *addr)
if ((unsigned long)addr & 3)
printk(KERN_ERR "change_bit(%x, %p)\n", nr, addr);
+ SMP_WMB;
__asm__ __volatile__("\n\
1: lwarx %0,0,%2
xor %0,%0,%1
: "=&r" (t) /*, "=m" (*p)*/
: "r" (mask), "r" (p)
: "cc");
+ SMP_MB;
}
int test_and_set_bit(int nr, volatile void *addr)
if ((unsigned long)addr & 3)
printk(KERN_ERR "test_and_set_bit(%x, %p)\n", nr, addr);
+ SMP_WMB;
__asm__ __volatile__("\n\
1: lwarx %0,0,%3
or %1,%0,%2
: "=&r" (old), "=&r" (t) /*, "=m" (*p)*/
: "r" (mask), "r" (p)
: "cc");
+ SMP_MB;
return (old & mask) != 0;
}
if ((unsigned long)addr & 3)
printk(KERN_ERR "test_and_clear_bit(%x, %p)\n", nr, addr);
+ SMP_WMB;
__asm__ __volatile__("\n\
1: lwarx %0,0,%3
andc %1,%0,%2
: "=&r" (old), "=&r" (t) /*, "=m" (*p)*/
: "r" (mask), "r" (p)
: "cc");
+ SMP_MB;
return (old & mask) != 0;
}
if ((unsigned long)addr & 3)
printk(KERN_ERR "test_and_change_bit(%x, %p)\n", nr, addr);
+ SMP_WMB;
__asm__ __volatile__("\n\
1: lwarx %0,0,%3
xor %1,%0,%2
: "=&r" (old), "=&r" (t) /*, "=m" (*p)*/
: "r" (mask), "r" (p)
: "cc");
+ SMP_MB;
return (old & mask) != 0;
}
#endif
blr
+/*
+ * The atomic operations here generally act as memory barriers too on SMP.
+ * The general usage of them assumes this since x86 processors won't
+ * move a load past a lock instruction and don't reorder stores.
+ */
+#ifdef __SMP__
+#define SMP_WMB eieio
+#define SMP_MB sync
+#else
+#define SMP_WMB
+#define SMP_MB
+#endif /* CONFIG_SMP */
+
/*
* Atomic [test&set] exchange
*
*/
_GLOBAL(xchg_u32)
mr r5,r3 /* Save pointer */
+ SMP_WMB
10: lwarx r3,0,r5 /* Fetch old value & reserve */
stwcx. r4,0,r5 /* Update with new value */
bne- 10b /* Retry if "reservation" (i.e. lock) lost */
+ SMP_MB
blr
/*
*/
_GLOBAL(__spin_trylock)
mr r4,r3
- eieio /* prevent reordering of stores */
+ SMP_WMB /* prevent reordering of stores */
li r5,-1
lwarx r3,0,r4 /* fetch old value, establish reservation */
cmpwi 0,r3,0 /* is it 0? */
bnelr- /* return failure if not */
stwcx. r5,0,r4 /* try to update with new value */
bne- 1f /* if we failed */
- eieio /* prevent reordering of stores */
+ SMP_WMB /* prevent reordering of stores */
blr
1: li r3,1 /* return non-zero for failure */
blr
* void atomic_set_mask(atomic_t mask, atomic_t *addr);
*/
_GLOBAL(atomic_add)
+ SMP_WMB /* wmb() */
10: lwarx r5,0,r4 /* Fetch old value & reserve */
add r5,r5,r3 /* Perform 'add' operation */
stwcx. r5,0,r4 /* Update with new value */
bne- 10b /* Retry if "reservation" (i.e. lock) lost */
+ SMP_MB
blr
_GLOBAL(atomic_add_return)
+ SMP_WMB /* wmb() */
10: lwarx r5,0,r4 /* Fetch old value & reserve */
add r5,r5,r3 /* Perform 'add' operation */
stwcx. r5,0,r4 /* Update with new value */
bne- 10b /* Retry if "reservation" (i.e. lock) lost */
mr r3,r5
+ SMP_MB
blr
_GLOBAL(atomic_sub)
+ SMP_WMB /* wmb() */
10: lwarx r5,0,r4 /* Fetch old value & reserve */
sub r5,r5,r3 /* Perform 'add' operation */
stwcx. r5,0,r4 /* Update with new value */
bne- 10b /* Retry if "reservation" (i.e. lock) lost */
+ SMP_MB
blr
_GLOBAL(atomic_inc)
+ SMP_WMB /* wmb() */
10: lwarx r5,0,r3 /* Fetch old value & reserve */
addi r5,r5,1 /* Perform 'add' operation */
stwcx. r5,0,r3 /* Update with new value */
bne- 10b /* Retry if "reservation" (i.e. lock) lost */
+ SMP_MB
blr
_GLOBAL(atomic_inc_return)
+ SMP_WMB /* wmb() */
10: lwarx r5,0,r3 /* Fetch old value & reserve */
addi r5,r5,1 /* Perform 'add' operation */
stwcx. r5,0,r3 /* Update with new value */
bne- 10b /* Retry if "reservation" (i.e. lock) lost */
mr r3,r5 /* Return new value */
+ SMP_MB
blr
_GLOBAL(atomic_dec)
+ SMP_WMB /* wmb() */
10: lwarx r5,0,r3 /* Fetch old value & reserve */
subi r5,r5,1 /* Perform 'add' operation */
stwcx. r5,0,r3 /* Update with new value */
bne- 10b /* Retry if "reservation" (i.e. lock) lost */
+ SMP_MB
blr
_GLOBAL(atomic_dec_return)
+ SMP_WMB /* wmb() */
10: lwarx r5,0,r3 /* Fetch old value & reserve */
subi r5,r5,1 /* Perform 'add' operation */
stwcx. r5,0,r3 /* Update with new value */
bne- 10b /* Retry if "reservation" (i.e. lock) lost */
mr r3,r5 /* Return new value */
+ SMP_MB
blr
_GLOBAL(atomic_dec_and_test)
+ SMP_WMB /* wmb() */
10: lwarx r5,0,r3 /* Fetch old value & reserve */
subi r5,r5,1 /* Perform 'add' operation */
stwcx. r5,0,r3 /* Update with new value */
bne- 10b /* Retry if "reservation" (i.e. lock) lost */
+ SMP_MB
cmpi 0,r5,0 /* Return 'true' IFF 0 */
li r3,1
beqlr
li r3,0
blr
_GLOBAL(atomic_clear_mask)
+ SMP_WMB /* wmb() */
10: lwarx r5,0,r4
andc r5,r5,r3
stwcx. r5,0,r4
bne- 10b
+ SMP_MB
blr
_GLOBAL(atomic_set_mask)
+ SMP_WMB /* wmb() */
10: lwarx r5,0,r4
or r5,r5,r3
stwcx. r5,0,r4
bne- 10b
+ SMP_MB
blr
/*
-/* $Id: irq.c,v 1.76.2.2 2000/02/17 18:05:36 davem Exp $
+/* $Id: irq.c,v 1.76.2.3 2000/03/02 02:03:27 davem Exp $
* irq.c: UltraSparc IRQ handling/init/registry.
*
* Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
void init_timers(void (*cfunc)(int, void *, struct pt_regs *),
unsigned long *clock)
{
- unsigned long flags;
+ unsigned long pstate;
extern unsigned long timer_tick_offset;
int node, err;
#ifdef __SMP__
prom_halt();
}
- save_and_cli(flags);
+ /* Guarentee that the following sequences execute
+ * uninterrupted.
+ */
+ __asm__ __volatile__("rdpr %%pstate, %0\n\t"
+ "wrpr %0, %1, %%pstate"
+ : "=r" (pstate)
+ : "i" (PSTATE_IE));
/* Set things up so user can access tick register for profiling
- * purposes.
+ * purposes. Also workaround BB_ERRATA_1 by doing a dummy
+ * read back of %tick after writing it.
*/
__asm__ __volatile__("
sethi %%hi(0x80000000), %%g1
- sllx %%g1, 32, %%g1
- rd %%tick, %%g2
+ ba,pt %%xcc, 1f
+ sllx %%g1, 32, %%g1
+ .align 64
+ 1: rd %%tick, %%g2
add %%g2, 6, %%g2
andn %%g2, %%g1, %%g2
wrpr %%g2, 0, %%tick
-" : /* no outputs */
+ rdpr %%tick, %%g0"
+ : /* no outputs */
: /* no inputs */
: "g1", "g2");
+ /* Workaround for Spitfire Errata (#54 I think??), I discovered
+ * this via Sun BugID 4008234, mentioned in Solaris-2.5.1 patch
+ * number 103640.
+ *
+ * On Blackbird writes to %tick_cmpr can fail, the
+ * workaround seems to be to execute the wr instruction
+ * at the start of an I-cache line, and perform a dummy
+ * read back from %tick_cmpr right after writing to it. -DaveM
+ */
__asm__ __volatile__("
rd %%tick, %%g1
- add %%g1, %0, %%g1
- wr %%g1, 0x0, %%tick_cmpr"
+ ba,pt %%xcc, 1f
+ add %%g1, %0, %%g1
+ .align 64
+ 1: wr %%g1, 0x0, %%tick_cmpr
+ rd %%tick_cmpr, %%g0"
: /* no outputs */
: "r" (timer_tick_offset)
: "g1");
- restore_flags(flags);
+ /* Restore PSTATE_IE. */
+ __asm__ __volatile__("wrpr %0, 0x0, %%pstate"
+ : /* no outputs */
+ : "r" (pstate));
+
sti();
}
__initfunc(void smp_callin(void))
{
int cpuid = hard_smp_processor_id();
+ unsigned long pstate;
inherit_locked_prom_mappings(0);
cpu_probe();
- /* Master did this already, now is the time for us to do it. */
+ /* Guarentee that the following sequences execute
+ * uninterrupted.
+ */
+ __asm__ __volatile__("rdpr %%pstate, %0\n\t"
+ "wrpr %0, %1, %%pstate"
+ : "=r" (pstate)
+ : "i" (PSTATE_IE));
+
+ /* Set things up so user can access tick register for profiling
+ * purposes. Also workaround BB_ERRATA_1 by doing a dummy
+ * read back of %tick after writing it.
+ */
__asm__ __volatile__("
sethi %%hi(0x80000000), %%g1
- sllx %%g1, 32, %%g1
- rd %%tick, %%g2
+ ba,pt %%xcc, 1f
+ sllx %%g1, 32, %%g1
+ .align 64
+1: rd %%tick, %%g2
add %%g2, 6, %%g2
andn %%g2, %%g1, %%g2
wrpr %%g2, 0, %%tick
-" : /* no outputs */
+ rdpr %%tick, %%g0"
+ : /* no outputs */
: /* no inputs */
: "g1", "g2");
+ /* Restore PSTATE_IE. */
+ __asm__ __volatile__("wrpr %0, 0x0, %%pstate"
+ : /* no outputs */
+ : "r" (pstate));
+
smp_setup_percpu_timer();
__sti();
void smp_percpu_timer_interrupt(struct pt_regs *regs)
{
- unsigned long compare, tick;
+ unsigned long compare, tick, pstate;
int cpu = smp_processor_id();
int user = user_mode(regs);
prof_counter(cpu) = prof_multiplier(cpu);
}
+ /* Guarentee that the following sequences execute
+ * uninterrupted.
+ */
+ __asm__ __volatile__("rdpr %%pstate, %0\n\t"
+ "wrpr %0, %1, %%pstate"
+ : "=r" (pstate)
+ : "i" (PSTATE_IE));
+
+ /* Workaround for Spitfire Errata (#54 I think??), I discovered
+ * this via Sun BugID 4008234, mentioned in Solaris-2.5.1 patch
+ * number 103640.
+ *
+ * On Blackbird writes to %tick_cmpr can fail, the
+ * workaround seems to be to execute the wr instruction
+ * at the start of an I-cache line, and perform a dummy
+ * read back from %tick_cmpr right after writing to it. -DaveM
+ *
+ * Just to be anal we add a workaround for Spitfire
+ * Errata 50 by preventing pipeline bypasses on the
+ * final read of the %tick register into a compare
+ * instruction. The Errata 50 description states
+ * that %tick is not prone to this bug, but I am not
+ * taking any chances.
+ */
__asm__ __volatile__("rd %%tick_cmpr, %0\n\t"
- "add %0, %2, %0\n\t"
- "wr %0, 0x0, %%tick_cmpr\n\t"
- "rd %%tick, %1"
+ "ba,pt %%xcc, 1f\n\t"
+ " add %0, %2, %0\n\t"
+ ".align 64\n"
+ "1: wr %0, 0x0, %%tick_cmpr\n\t"
+ "rd %%tick_cmpr, %%g0\n\t"
+ "rd %%tick, %1\n\t"
+ "mov %1, %1"
: "=&r" (compare), "=r" (tick)
: "r" (current_tick_offset));
+
+ /* Restore PSTATE_IE. */
+ __asm__ __volatile__("wrpr %0, 0x0, %%pstate"
+ : /* no outputs */
+ : "r" (pstate));
} while (tick >= compare);
}
__initfunc(static void smp_setup_percpu_timer(void))
{
int cpu = smp_processor_id();
+ unsigned long pstate;
prof_counter(cpu) = prof_multiplier(cpu) = 1;
- __asm__ __volatile__("rd %%tick, %%g1\n\t"
- "add %%g1, %0, %%g1\n\t"
- "wr %%g1, 0x0, %%tick_cmpr"
+ /* Guarentee that the following sequences execute
+ * uninterrupted.
+ */
+ __asm__ __volatile__("rdpr %%pstate, %0\n\t"
+ "wrpr %0, %1, %%pstate"
+ : "=r" (pstate)
+ : "i" (PSTATE_IE));
+
+ /* Workaround for Spitfire Errata (#54 I think??), I discovered
+ * this via Sun BugID 4008234, mentioned in Solaris-2.5.1 patch
+ * number 103640.
+ *
+ * On Blackbird writes to %tick_cmpr can fail, the
+ * workaround seems to be to execute the wr instruction
+ * at the start of an I-cache line, and perform a dummy
+ * read back from %tick_cmpr right after writing to it. -DaveM
+ */
+ __asm__ __volatile__("
+ rd %%tick, %%g1
+ ba,pt %%xcc, 1f
+ add %%g1, %0, %%g1
+ .align 64
+ 1: wr %%g1, 0x0, %%tick_cmpr
+ rd %%tick_cmpr, %%g0"
+ : /* no outputs */
+ : "r" (current_tick_offset)
+ : "g1");
+
+ /* Restore PSTATE_IE. */
+ __asm__ __volatile__("wrpr %0, 0x0, %%pstate"
: /* no outputs */
- : "r" (current_tick_offset)
- : "g1");
+ : "r" (pstate));
}
__initfunc(void smp_tick_init(void))
-/* $Id: time.c,v 1.20.2.1 1999/10/09 06:03:23 davem Exp $
+/* $Id: time.c,v 1.20.2.2 2000/03/02 02:03:31 davem Exp $
* time.c: UltraSparc timer and TOD clock support.
*
* Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
static void timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
{
- unsigned long ticks;
+ unsigned long ticks, pstate;
write_lock(&xtime_lock);
do {
do_timer(regs);
+ /* Guarentee that the following sequences execute
+ * uninterrupted.
+ */
+ __asm__ __volatile__("rdpr %%pstate, %0\n\t"
+ "wrpr %0, %1, %%pstate"
+ : "=r" (pstate)
+ : "i" (PSTATE_IE));
+
+ /* Workaround for Spitfire Errata (#54 I think??), I discovered
+ * this via Sun BugID 4008234, mentioned in Solaris-2.5.1 patch
+ * number 103640.
+ *
+ * On Blackbird writes to %tick_cmpr can fail, the
+ * workaround seems to be to execute the wr instruction
+ * at the start of an I-cache line, and perform a dummy
+ * read back from %tick_cmpr right after writing to it. -DaveM
+ *
+ * Just to be anal we add a workaround for Spitfire
+ * Errata 50 by preventing pipeline bypasses on the
+ * final read of the %tick register into a compare
+ * instruction. The Errata 50 description states
+ * that %tick is not prone to this bug, but I am not
+ * taking any chances.
+ */
__asm__ __volatile__("
rd %%tick_cmpr, %0
- add %0, %2, %0
- wr %0, 0, %%tick_cmpr
- rd %%tick, %1"
+ ba,pt %%xcc, 1f
+ add %0, %2, %0
+ .align 64
+ 1: wr %0, 0, %%tick_cmpr
+ rd %%tick_cmpr, %%g0
+ rd %%tick, %1
+ mov %1, %1"
: "=&r" (timer_tick_compare), "=r" (ticks)
: "r" (timer_tick_offset));
+
+ /* Restore PSTATE_IE. */
+ __asm__ __volatile__("wrpr %0, 0x0, %%pstate"
+ : /* no outputs */
+ : "r" (pstate));
} while (ticks >= timer_tick_compare);
timer_check_rtc();
* Version 0.3.1 (99/06/22):
* - allow module removal while internal timer is active,
* print warning about probable reset
+ *
+ * Version 0.4 (99/11/15):
+ * - support for one more type board
*
*/
-#define VERSION "0.3.1"
+#define VERSION "0.4"
#include <linux/module.h>
#include <linux/config.h>
static int mixcomwd_ioports[] = { 0x180, 0x280, 0x380, 0x000 };
#define MIXCOM_WATCHDOG_OFFSET 0xc10
-#define MIXCOM_ID1 0x11
-#define MIXCOM_ID2 0x13
+#define MIXCOM_ID 0x11
+#define FLASHCOM_WATCHDOG_OFFSET 0x4
+#define FLASHCOM_ID 0x18
static int mixcomwd_opened;
-static int mixcomwd_port;
+
+static int watchdog_port;
#ifndef CONFIG_WATCHDOG_NOWAYOUT
static int mixcomwd_timer_alive;
static void mixcomwd_ping(void)
{
- outb_p(55,mixcomwd_port+MIXCOM_WATCHDOG_OFFSET);
+ outb_p(55,watchdog_port);
return;
}
&mixcomwd_fops
};
-__initfunc(static int mixcomwd_checkcard(int port))
+__initfunc(static int mixcom_checkcard(int port))
{
int id;
- if(check_region(port,1)) {
+ if(check_region(port + MIXCOM_WATCHDOG_OFFSET,1)) {
return 0;
}
- id=inb_p(port + MIXCOM_WATCHDOG_OFFSET) & 0x3f;
- if(id!=MIXCOM_ID1 && id!=MIXCOM_ID2) {
+ id=inb_p(port + MIXCOM_WATCHDOG_OFFSET);
+ if(id!=MIXCOM_ID) {
+ return 0;
+ }
+ return 1;
+}
+
+__initfunc(static int flashcom_checkcard(int port))
+{
+ int id;
+
+ if(check_region(port + FLASHCOM_WATCHDOG_OFFSET,1)) {
+ return 0;
+ }
+
+ id=inb_p(port + FLASHCOM_WATCHDOG_OFFSET);
+ if(id!=FLASHCOM_ID) {
return 0;
}
return 1;
int i;
int found=0;
- for (i = 0; mixcomwd_ioports[i] != 0; i++) {
- if (mixcomwd_checkcard(mixcomwd_ioports[i])) {
+ for (i = 0; !found && mixcomwd_ioports[i] != 0; i++) {
+ if (mixcom_checkcard(mixcomwd_ioports[i])) {
found = 1;
- mixcomwd_port = mixcomwd_ioports[i];
- break;
+ watchdog_port = mixcomwd_ioports[i] + MIXCOM_WATCHDOG_OFFSET;
}
}
-
+
+ /* The FlashCOM card can be set up at 0x300 -> 0x378, in 0x8 jumps */
+ for (i = 0x300; !found && i < 0x380; i+=0x8) {
+ if (flashcom_checkcard(i)) {
+ found = 1;
+ watchdog_port = i + FLASHCOM_WATCHDOG_OFFSET;
+ }
+ }
+
if (!found) {
printk("mixcomwd: No card detected, or port not available.\n");
return;
}
- request_region(mixcomwd_port+MIXCOM_WATCHDOG_OFFSET,1,"MixCOM watchdog");
-
+ request_region(watchdog_port,1,"MixCOM watchdog");
+
misc_register(&mixcomwd_miscdev);
- printk("MixCOM watchdog driver v%s, MixCOM card at 0x%3x\n",VERSION,mixcomwd_port);
+ printk("MixCOM watchdog driver v%s, watchdog port at 0x%3x\n",VERSION,watchdog_port);
}
#ifdef MODULE
mixcomwd_timer_alive=0;
}
#endif
- release_region(mixcomwd_port+MIXCOM_WATCHDOG_OFFSET,1);
+ release_region(watchdog_port,1);
misc_deregister(&mixcomwd_miscdev);
}
#endif
int __init i2o_config_init(void)
#endif
{
- printk(KERN_INFO "I2O configuration manager v 0.04.\n");
- printk(KERN_INFO " (C) Copyright 1999 Red Hat Software");
+ printk(KERN_INFO "I2O configuration manager v 0.04\n");
+ printk(KERN_INFO "(C) Copyright 1999 Red Hat Software\n");
if((page_buf = kmalloc(4096, GFP_KERNEL))==NULL)
{
bool 'Token Ring driver support' CONFIG_TR
if [ "$CONFIG_TR" = "y" ]; then
tristate 'IBM Tropic chipset based adaptor support' CONFIG_IBMTR
-# tristate 'IBM Lanstreamer PCI adaptor support' CONFIG_IBMLS
+ tristate 'IBM Lanstreamer PCI adaptor support' CONFIG_IBMLS
tristate 'IBM Olympic chipset PCI adapter support' CONFIG_IBMOL
tristate 'SysKonnect adapter support' CONFIG_SKTR
fi
tristate 'MultiGate (COMX) synchronous serial boards support' CONFIG_COMX
if [ "$CONFIG_COMX" != "n" ]; then
- if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
- dep_tristate ' Support for COMX/CMX/HiCOMX boards' CONFIG_COMX_HW_COMX $CONFIG_COMX
- fi
+ dep_tristate ' Support for COMX/CMX/HiCOMX boards' CONFIG_COMX_HW_COMX $CONFIG_COMX
dep_tristate ' Support for LoCOMX board' CONFIG_COMX_HW_LOCOMX $CONFIG_COMX
dep_tristate ' Support for MixCOM board' CONFIG_COMX_HW_MIXCOM $CONFIG_COMX
dep_tristate ' Support for HDLC and syncPPP protocols on MultiGate boards' CONFIG_COMX_PROTO_PPP $CONFIG_COMX
/* Token-ring device probe */
extern int ibmtr_probe(struct device *);
extern int olympic_probe(struct device *);
+extern int streamer_probe(struct device *);
static int
trif_probe(struct device *dev)
#ifdef CONFIG_IBMOL
&& olympic_probe(dev)
#endif
+#ifdef CONFIG_IBMLS
+ && streamer_probe(dev)
+#endif
#ifdef CONFIG_SKTR
&& sktr_probe(dev)
#endif
* Rewritten by: Tivadar Szemethy <tiv@itc.hu>
* Currently maintained by: Gergely Madarasz <gorgo@itc.hu>
*
- * Copyright (C) 1995-1999 ITConsult-Pro Co. <info@itc.hu>
+ * Copyright (C) 1995-2000 ITConsult-Pro Co. <info@itc.hu>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
*
* Version 0.82 (99/08/24):
* - fix multiple board support
+ *
+ * Version 0.83 (99/11/30):
+ * - interrupt handling and locking fixes during initalization
+ * - really fix multiple board support
*
+ * Version 0.84 (99/12/02):
+ * - some workarounds for problematic hardware/firmware
+ *
+ * Version 0.85 (00/01/14):
+ * - some additional workarounds :/
+ * - printk cleanups
*/
-#define VERSION "0.82"
+#define VERSION "0.85"
#include <asm/uaccess.h>
#include <asm/io.h>
u_long histogram[5];
};
-struct device *memory_used[(COMX_MEM_MAX - COMX_MEM_MIN) / 0x10000];
+static struct device *memory_used[(COMX_MEM_MAX - COMX_MEM_MIN) / 0x10000];
extern struct comx_hardware hicomx_hw;
extern struct comx_hardware comx_hw;
extern struct comx_hardware cmx_hw;
int mempos = (dev->mem_start - COMX_MEM_MIN) >> 16;
unsigned long flags;
+
save_flags(flags); cli();
- if (memory_used[mempos] == dev) {
- restore_flags(flags);
- return dev;
- }
-
- if (ch->twin && memory_used[mempos] == ch->twin) {
- memory_used[mempos] = dev;
- ret = ch->twin;
- } else {
- ret = memory_used[mempos];
- if (ret) ch->HW_board_off(ret);
- memory_used[mempos] = dev;
+
+ ret = memory_used[mempos];
+
+ if(ret == dev) {
+ goto out;
+ }
+
+ memory_used[mempos] = dev;
+
+ if (!ch->twin || ret != ch->twin) {
+ if (ret) ((struct comx_channel *)ret->priv)->HW_board_off(ret);
ch->HW_board_on(dev);
}
+out:
restore_flags(flags);
return ret;
}
struct comx_channel *ch = dev->priv;
save_flags(flags); cli();
+
if (memory_used[mempos] == savep) {
- restore_flags(flags);
- return;
+ goto out;
}
memory_used[mempos] = savep;
if (!ch->twin || ch->twin != savep) {
ch->HW_board_off(dev);
- if (savep) ch->HW_board_on(savep);
+ if (savep) ((struct comx_channel*)savep->priv)->HW_board_on(savep);
}
+out:
restore_flags(flags);
}
savep = ch->HW_access_board(dev);
if (COMX_readw(dev,OFF_A_L2_LINKUP) == LINKUP_READY) {
rc = COMX_readw(dev,OFF_A_L2_TxEMPTY);
- }
+ }
ch->HW_release_board(dev,savep);
+ if(rc==0xffff) {
+ printk(KERN_ERR "%s, OFF_A_L2_TxEMPTY is %d\n",dev->name, rc);
+ }
return rc;
}
struct comx_channel *ch = dev->priv;
struct comx_privdata *hw = ch->HW_privdata;
int ret = FRAME_DROPPED;
+ word tmp;
savep = ch->HW_access_board(dev);
}
if (skb->len > COMX_MAX_TX_SIZE) {
- dev_kfree_skb(skb);
- return FRAME_DROPPED;
+ ret=FRAME_DROPPED;
+ goto out;
}
- if ((ch->line_status & LINE_UP) && COMX_readw(dev, OFF_A_L2_TxEMPTY)) {
+ tmp=COMX_readw(dev, OFF_A_L2_TxEMPTY);
+ if ((ch->line_status & LINE_UP) && tmp==1) {
int lensave = skb->len;
int dest = COMX_readw(dev, OFF_A_L2_TxBUFP);
word *data = (word *)skb->data;
+ if(dest==0xffff) {
+ printk(KERN_ERR "%s: OFF_A_L2_TxBUFP is %d\n", dev->name, dest);
+ ret=FRAME_DROPPED;
+ goto out;
+ }
+
writew((unsigned short)skb->len, dev->mem_start + dest);
dest += 2;
while (skb->len > 1) {
} else {
ch->stats.tx_dropped++;
printk(KERN_INFO "%s: frame dropped\n",dev->name);
+ if(tmp) {
+ printk(KERN_ERR "%s: OFF_A_L2_TxEMPTY is %d\n",dev->name,tmp);
+ }
}
+out:
ch->HW_release_board(dev, savep);
dev_kfree_skb(skb);
return ret;
i = 0;
rbuf_offs = COMX_readw(dev, OFF_A_L2_RxBUFP);
+ if(rbuf_offs == 0xffff) {
+ printk(KERN_ERR "%s: OFF_A_L2_RxBUFP is %d\n",dev->name,rbuf_offs);
+ return 0;
+ }
len = readw(dev->mem_start + rbuf_offs);
+ if(len > COMX_MAX_RX_SIZE) {
+ printk(KERN_ERR "%s: packet length is %d\n",dev->name,len);
+ return 0;
+ }
if ((skb = dev_alloc_skb(len + 16)) == NULL) {
ch->stats.rx_dropped++;
COMX_WRITE(dev, OFF_A_L2_DAV, 0);
if (dev->interrupt) {
printk(KERN_ERR "%s: re-entering interrupt handler!\n", dev->name);
return;
- }
+ }
- printk("%s: entering interrupt handler\n", dev->name);
jiffs = jiffies;
dev->interrupt = 1;
+
interrupted = ch->HW_access_board(dev);
while (!idle && count < 5000) {
/* Collect stats */
tmp = COMX_readw(dev, OFF_A_L1_ABOREC);
COMX_WRITE(dev, OFF_A_L1_ABOREC, 0);
- ch->stats.rx_missed_errors += (tmp >> 8) & 0xff;
- ch->stats.rx_over_errors += tmp & 0xff;
+ if(tmp==0xffff) {
+ printk(KERN_ERR "%s: OFF_A_L1_ABOREC is %d\n",dev->name,tmp);
+ break;
+ } else {
+ ch->stats.rx_missed_errors += (tmp >> 8) & 0xff;
+ ch->stats.rx_over_errors += tmp & 0xff;
+ }
tmp = COMX_readw(dev, OFF_A_L1_CRCREC);
COMX_WRITE(dev, OFF_A_L1_CRCREC, 0);
- ch->stats.rx_crc_errors += (tmp >> 8) & 0xff;
- ch->stats.rx_missed_errors += tmp & 0xff;
-
+ if(tmp==0xffff) {
+ printk(KERN_ERR "%s: OFF_A_L1_CRCREC is %d\n",dev->name,tmp);
+ break;
+ } else {
+ ch->stats.rx_crc_errors += (tmp >> 8) & 0xff;
+ ch->stats.rx_missed_errors += tmp & 0xff;
+ }
+
if ((ch->line_status & LINE_UP) && ch->LINE_rx) {
- while (COMX_readw(dev, OFF_A_L2_DAV)) {
+ tmp=COMX_readw(dev, OFF_A_L2_DAV);
+ while (tmp==1) {
idle=0;
buffers_emptied+=comx_read_buffer(dev);
+ tmp=COMX_readw(dev, OFF_A_L2_DAV);
+ }
+ if(tmp) {
+ printk(KERN_ERR "%s: OFF_A_L2_DAV is %d\n", dev->name, tmp);
+ break;
}
}
- if (COMX_readw(dev, OFF_A_L2_TxEMPTY) && ch->LINE_tx) {
+ tmp=COMX_readw(dev, OFF_A_L2_TxEMPTY);
+ if (tmp==1 && ch->LINE_tx) {
ch->LINE_tx(dev);
+ }
+ if(tmp==0xffff) {
+ printk(KERN_ERR "%s: OFF_A_L2_TxEMPTY is %d\n", dev->name, tmp);
+ break;
}
if (COMX_readw(dev, OFF_A_L1_PBUFOVR) >> 8) {
}
ch->HW_release_board(dev, interrupted);
- printk("%s: leaving interrupt handler\n", dev->name);
dev->interrupt = 0;
}
struct comx_privdata *hw = ch->HW_privdata;
struct proc_dir_entry *procfile = ch->procdir->subdir;
unsigned long jiffs;
+ int twin_open=0;
+ int retval;
struct device *savep;
if (!dev->base_addr || !dev->irq || !dev->mem_start) {
return -ENODEV;
}
- if (!ch->twin ||
- (!(((struct comx_channel *)(ch->twin->priv))->init_status & HW_OPEN))) {
+ if (ch->twin && (((struct comx_channel *)(ch->twin->priv))->init_status & HW_OPEN)) {
+ twin_open=1;
+ }
+
+ if (!twin_open) {
if (check_region(dev->base_addr, hw->io_extent)) {
return -EAGAIN;
}
- if (request_irq(dev->irq, COMX_interrupt, SA_INTERRUPT, dev->name,
+ if (request_irq(dev->irq, COMX_interrupt, 0, dev->name,
(void *)dev)) {
printk(KERN_ERR "comx-hw-comx: unable to obtain irq %d\n", dev->irq);
return -EAGAIN;
ch->init_status |= IRQ_ALLOCATED;
request_region(dev->base_addr, hw->io_extent, dev->name);
if (!ch->HW_load_board || ch->HW_load_board(dev)) {
- release_region(dev->base_addr, hw->io_extent);
- free_irq(dev->irq, (void *)dev);
ch->init_status &= ~IRQ_ALLOCATED;
- return -ENODEV;
+ retval=-ENODEV;
+ goto error;
}
}
schedule_timeout(1);
}
- ch->HW_release_board(dev, savep);
- if (jiffies > jiffs + HZ) {
+ if (jiffies >= jiffs + HZ) {
printk(KERN_ERR "%s: board timeout on INIT command\n", dev->name);
- release_region(dev->base_addr, hw->io_extent);
- free_irq(dev->irq, (void *)dev);
- return -EIO;
+ ch->HW_release_board(dev, savep);
+ retval=-EIO;
+ goto error;
}
+ udelay(1000);
- savep = ch->HW_access_board(dev);
-
- /* Ide kellene irni, hogy DTE vagy DCE ? */
COMX_CMD(dev, COMX_CMD_OPEN);
+ jiffs = jiffies;
+ while (COMX_readw(dev, OFF_A_L2_LINKUP) != 3 && jiffies < jiffs + HZ) {
+ schedule_timeout(1);
+ }
+
+ if (jiffies >= jiffs + HZ) {
+ printk(KERN_ERR "%s: board timeout on OPEN command\n", dev->name);
+ ch->HW_release_board(dev, savep);
+ retval=-EIO;
+ goto error;
+ }
+
ch->init_status |= HW_OPEN;
/* Ez eleg ciki, de ilyen a rendszer */
}
return 0;
+
+error:
+ if(!twin_open) {
+ release_region(dev->base_addr, hw->io_extent);
+ free_irq(dev->irq, (void *)dev);
+ }
+ return retval;
+
}
static int COMX_close(struct device *dev)
struct comx_privdata *hw = ch->HW_privdata;
struct comx_firmware *fw = hw->firmware;
word board_segment = dev->mem_start >> 16;
- unsigned long jiff;
+ int mempos = (dev->mem_start - COMX_MEM_MIN) >> 16;
+ unsigned long flags;
unsigned char id1, id2;
+ struct device *saved;
+ int retval;
+ int loopcount;
int len;
byte *COMX_address;
outb_p(board_segment | COMX_BOARD_RESET, dev->base_addr);
/* 10 usec should be enough here */
udelay(100);
+
+ save_flags(flags); cli();
+ saved=memory_used[mempos];
+ if(saved) {
+ ((struct comx_channel *)saved->priv)->HW_board_off(saved);
+ }
+ memory_used[mempos]=dev;
+
outb_p(board_segment | COMX_ENABLE_BOARD_MEM, dev->base_addr);
writeb(0, dev->mem_start + COMX_JAIL_OFFSET);
- jiff=jiffies;
- while(jiffies < jiff + HZ && readb(dev->mem_start + COMX_JAIL_OFFSET)
- != COMX_JAIL_VALUE) {
- schedule_timeout(1);
+
+ loopcount=0;
+ while(loopcount++ < 10000 &&
+ readb(dev->mem_start + COMX_JAIL_OFFSET) != COMX_JAIL_VALUE) {
+ udelay(100);
}
if (readb(dev->mem_start + COMX_JAIL_OFFSET) != COMX_JAIL_VALUE) {
printk(KERN_ERR "%s: Can't reset board, JAIL value is %02x\n",
dev->name, readb(dev->mem_start + COMX_JAIL_OFFSET));
- outb_p(board_segment | COMX_DISABLE_ALL, dev->base_addr);
- return -ENODEV;
+ retval=-ENODEV;
+ goto out;
}
writeb(0x55, dev->mem_start + 0x18ff);
- jiff=jiffies;
- while(jiffies < jiff + 3*HZ && readb(dev->mem_start + 0x18ff) != 0) {
- schedule_timeout(1);
+
+ loopcount=0;
+ while(loopcount++ < 10000 && readb(dev->mem_start + 0x18ff) != 0) {
+ udelay(100);
}
if(readb(dev->mem_start + 0x18ff) != 0) {
printk(KERN_ERR "%s: Can't reset board, reset timeout\n",
dev->name);
- outb_p(board_segment | COMX_DISABLE_ALL, dev->base_addr);
- return -ENODEV;
+ retval=-ENODEV;
+ goto out;
}
len = 0;
printk(KERN_ERR "%s: error loading firmware: [%d] is 0x%02x "
"instead of 0x%02x\n", dev->name, len,
readb(COMX_address - 1), fw->data[len]);
- outb_p(board_segment | COMX_DISABLE_ALL, dev->base_addr);
- return -EAGAIN;
+ retval=-EAGAIN;
+ goto out;
}
writeb(0, dev->mem_start + COMX_JAIL_OFFSET);
- jiff = jiffies;
- while ( COMX_readw(dev, OFF_A_L2_LINKUP) != 1 && jiffies < jiff + 3*HZ ) {
- schedule_timeout(1);
+ loopcount = 0;
+ while ( loopcount++ < 10000 && COMX_readw(dev, OFF_A_L2_LINKUP) != 1 ) {
+ udelay(100);
}
- if (jiffies > jiff + 3*HZ) {
+ if (COMX_readw(dev, OFF_A_L2_LINKUP) != 1) {
printk(KERN_ERR "%s: error starting firmware, linkup word is %04x\n",
dev->name, COMX_readw(dev, OFF_A_L2_LINKUP));
- outb_p(board_segment | COMX_DISABLE_ALL, dev->base_addr);
- return -EAGAIN;
+ retval=-EAGAIN;
+ goto out;
}
- outb_p(board_segment | COMX_DISABLE_BOARD_MEM, dev->base_addr);
+
ch->init_status |= FW_LOADED;
- return 0;
+ retval=0;
+
+out:
+ outb_p(board_segment | COMX_DISABLE_ALL, dev->base_addr);
+ if(saved) {
+ ((struct comx_channel *)saved->priv)->HW_board_on(saved);
+ }
+ memory_used[mempos]=saved;
+ restore_flags(flags);
+ return retval;
}
static int CMX_load_board(struct device *dev)
struct comx_privdata *hw = ch->HW_privdata;
struct comx_firmware *fw = hw->firmware;
word board_segment = dev->mem_start >> 16;
- unsigned long jiff;
+ int mempos = (dev->mem_start - COMX_MEM_MIN) >> 16;
#if 0
unsigned char id1, id2;
#endif
+ struct device *saved;
+ unsigned long flags;
+ int retval;
+ int loopcount;
int len;
byte *COMX_address;
printk(KERN_INFO "%s: Loading CMX Layer 1 firmware %s\n", dev->name,
(char *)(fw->data + OFF_FW_L1_ID + 2));
+ save_flags(flags); cli();
+ saved=memory_used[mempos];
+ if(saved) {
+ ((struct comx_channel *)saved->priv)->HW_board_off(saved);
+ }
+ memory_used[mempos]=dev;
+
outb_p(board_segment | COMX_ENABLE_BOARD_MEM | COMX_BOARD_RESET,
dev->base_addr);
printk(KERN_ERR "%s: error loading firmware: [%d] is 0x%02x "
"instead of 0x%02x\n", dev->name, len,
readb(COMX_address - 1), fw->data[len]);
- outb_p(board_segment | COMX_DISABLE_ALL, dev->base_addr);
- return -EAGAIN;
+ retval=-EAGAIN;
+ goto out;
}
- jiff = jiffies;
- while ( COMX_readw(dev, OFF_A_L2_LINKUP) != 1 && jiffies < jiff + 3*HZ ) {
- schedule_timeout(1);
+ loopcount=0;
+ while( loopcount++ < 10000 && COMX_readw(dev, OFF_A_L2_LINKUP) != 1 ) {
+ udelay(100);
}
- if (jiffies > jiff + 3*HZ) {
+ if (COMX_readw(dev, OFF_A_L2_LINKUP) != 1) {
printk(KERN_ERR "%s: error starting firmware, linkup word is %04x\n",
dev->name, COMX_readw(dev, OFF_A_L2_LINKUP));
- outb_p(board_segment | COMX_DISABLE_ALL, dev->base_addr);
- return -EAGAIN;
+ retval=-EAGAIN;
+ goto out;
}
- outb_p(board_segment | COMX_DISABLE_BOARD_MEM, dev->base_addr);
ch->init_status |= FW_LOADED;
- return 0;
+ retval=0;
+
+out:
+ outb_p(board_segment | COMX_DISABLE_ALL, dev->base_addr);
+ if(saved) {
+ ((struct comx_channel *)saved->priv)->HW_board_on(saved);
+ }
+ memory_used[mempos]=saved;
+ restore_flags(flags);
+ return retval;
}
static int HICOMX_load_board(struct device *dev)
struct comx_privdata *hw = ch->HW_privdata;
struct comx_firmware *fw = hw->firmware;
word board_segment = dev->mem_start >> 12;
- unsigned long jiff;
+ int mempos = (dev->mem_start - COMX_MEM_MIN) >> 16;
+ struct device *saved;
unsigned char id1, id2;
+ unsigned long flags;
+ int retval;
+ int loopcount;
int len;
word *HICOMX_address;
char id = 1;
outb_p(board_segment | HICOMX_BOARD_RESET, dev->base_addr);
udelay(10);
+
+ save_flags(flags); cli();
+ saved=memory_used[mempos];
+ if(saved) {
+ ((struct comx_channel *)saved->priv)->HW_board_off(saved);
+ }
+ memory_used[mempos]=dev;
+
outb_p(board_segment | HICOMX_ENABLE_BOARD_MEM, dev->base_addr);
outb_p(HICOMX_PRG_MEM, dev->base_addr + 1);
printk(KERN_ERR "%s: error loading firmware: [%d] is 0x%02x "
"instead of 0x%02x\n", dev->name, len,
readw(HICOMX_address - 1) & 0xff, fw->data[len]);
- outb_p(board_segment | HICOMX_DISABLE_ALL, dev->base_addr);
- outb_p(HICOMX_DATA_MEM, dev->base_addr + 1);
- return -EAGAIN;
+ retval=-EAGAIN;
+ goto out;
}
outb_p(board_segment | HICOMX_BOARD_RESET, dev->base_addr);
outb_p(HICOMX_DATA_MEM, dev->base_addr + 1);
+
outb_p(board_segment | HICOMX_ENABLE_BOARD_MEM, dev->base_addr);
- jiff = jiffies;
- while ( COMX_readw(dev, OFF_A_L2_LINKUP) != 1 && jiffies < jiff + 3*HZ ) {
- schedule_timeout(1);
+ loopcount=0;
+ while(loopcount++ < 10000 && COMX_readw(dev, OFF_A_L2_LINKUP) != 1) {
+ udelay(100);
}
if ( COMX_readw(dev, OFF_A_L2_LINKUP) != 1 ) {
printk(KERN_ERR "%s: error starting firmware, linkup word is %04x\n",
dev->name, COMX_readw(dev, OFF_A_L2_LINKUP));
- outb_p(board_segment | HICOMX_DISABLE_ALL, dev->base_addr);
- return -EAGAIN;
+ retval=-EAGAIN;
+ goto out;
}
- outb_p(board_segment | HICOMX_DISABLE_ALL, dev->base_addr);
ch->init_status |= FW_LOADED;
- return 0;
+ retval=0;
+
+out:
+ outb_p(board_segment | HICOMX_DISABLE_ALL, dev->base_addr);
+ outb_p(HICOMX_DATA_MEM, dev->base_addr + 1);
+
+ if(saved) {
+ ((struct comx_channel *)saved->priv)->HW_board_on(saved);
+ }
+ memory_used[mempos]=saved;
+ restore_flags(flags);
+ return retval;
}
static struct device *comx_twin_check(struct device *dev)
*
* Version 0.63 (99/09/21):
* - line status report fixes
+ *
+ * Version 0.64 (99/12/01):
+ * - some more cosmetical fixes
*/
-#define VERSION "0.63"
+#define VERSION "0.64"
#include <linux/config.h>
#include <linux/module.h>
save_flags(flags); cli();
- id=inb_p(MIXCOM_BOARD_BASE(dev) + MIXCOM_ID_OFFSET);
+ id=inb_p(MIXCOM_BOARD_BASE(dev) + MIXCOM_ID_OFFSET) & 0x7f;
if (id != MIXCOM_ID ) {
ret=-ENODEV;
mixcom_on(dev);
- restore_flags(flags);
hw->status=inb(MIXCOM_BOARD_BASE(dev) + MIXCOM_STATUS_OFFSET);
if(hw->status != 0xff) {
ch->line_status &= ~LINE_UP;
}
+ restore_flags(flags);
+
ch->LINE_status(dev, ch->line_status);
for (; procfile ; procfile = procfile->next) {
*
* Version 0.22 (99/08/05):
* - don't test IFF_RUNNING but the pp_link_state of the sppp
+ *
+ * Version 0.23 (99/12/02):
+ * - tbusy fixes
*
*/
-#define VERSION "0.22"
+#define VERSION "0.23"
#include <linux/config.h>
#include <linux/module.h>
static int syncppp_tx(struct device *dev)
{
- clear_bit(0, &dev->tbusy);
- mark_bh(NET_BH);
+ struct comx_channel *ch=dev->priv;
+
+ if(ch->line_status & LINE_UP) {
+ clear_bit(0, &dev->tbusy);
+ mark_bh(NET_BH);
+ }
return 0;
}
sppp_open(dev);
} else {
/* Line went down */
+ dev->tbusy = 1;
sppp_close(dev);
}
comx_status(dev, status);
-/*
+/*
* Device driver framework for the COMX line of synchronous serial boards
*
* for Linux kernel 2.2.X
* Version 0.83 (99/07/15):
* - reset line_status when interface is down
*
+ * Version 0.84 (99/12/01):
+ * - comx_status should not check for IFF_UP (to report
+ * line status from dev->open())
*/
-#define VERSION "0.82"
+#define VERSION "0.84"
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kmod.h>
#endif
-#ifndef CONFIG_PROC_FS
-#error For now, COMX really needs the /proc filesystem
-#endif
-
#include "comx.h"
#include "syncppp.h"
}
#endif
- if (dev->flags & IFF_UP) {
- printk(KERN_NOTICE "Interface %s: modem status %s, line protocol %s\n",
+ printk(KERN_NOTICE "Interface %s: modem status %s, line protocol %s\n",
dev->name, status & LINE_UP ? "UP" : "DOWN",
status & PROTO_LOOP ? "LOOP" : status & PROTO_UP ?
"UP" : "DOWN");
- }
ch->line_status = status;
}
#define HICOMX_IO_EXTENT 16
#define COMX_MAX_TX_SIZE 1600
+#define COMX_MAX_RX_SIZE 2048
#define COMX_JAIL_OFFSET 0xffff
#define COMX_JAIL_VALUE 0xfe
/* drivers/net/eepro100.c: An Intel i82557-559 Ethernet driver for Linux. */
/*
- NOTICE: this version tested with kernels 1.3.72 and later only!
+ NOTICE: this version of the driver is supposed to work with 2.2 kernels.
Written 1996-1999 by Donald Becker.
This software may be used and distributed according to the terms
There is a Majordomo mailing list based at
linux-eepro100@cesdis.gsfc.nasa.gov
- This driver also contains updates by Andrey Savochkin and others.
- For this specific driver variant please use linux-kernel for
- bug reports.
-
+ The driver also contains updates by different kernel developers.
+ This driver clone is maintained by Andrey V. Savochkin <saw@saw.sw.com.sg>.
+ Please use this email address and linux-kernel mailing list for bug reports.
*/
static const char *version =
"eepro100.c:v1.09j-t 9/29/99 Donald Becker http://cesdis.gsfc.nasa.gov/linux/drivers/eepro100.html\n"
-"eepro100.c: $Revision: 1.20 $ 1999/12/29 Modified by Andrey V. Savochkin <saw@msu.ru>\n";
+"eepro100.c: $Revision: 1.20.2.3 $ 2000/03/02 Modified by Andrey V. Savochkin <saw@saw.sw.com.sg> and others\n";
/* A few user-configurable values that apply to all boards.
First set is undocumented and spelled per Intel recommendations. */
if (check_region(ioaddr, 32))
continue;
} else if ((ioaddr = (long)ioremap(pciaddr & ~0xfUL, 0x1000)) == 0) {
- printk(KERN_INFO "Failed to map PCI address %#x.\n",
+ printk(KERN_INFO "Failed to map PCI address %#lx.\n",
pciaddr);
continue;
}
while (root_speedo_dev) {
struct speedo_private *sp = (void *)root_speedo_dev->priv;
unregister_netdev(root_speedo_dev);
-#ifdef USE_IO
release_region(root_speedo_dev->base_addr, SPEEDO3_TOTAL_SIZE);
-#else
+#ifndef USE_IO
iounmap((char *)root_speedo_dev->base_addr);
#endif
#if defined(HAS_PCI_NETIF)
Center of Excellence in Space Data and Information Sciences
Code 930.5, Goddard Space Flight Center, Greenbelt MD 20771
- Fixing alignment problem with 1.3.* kernel and some minor changes
- by Andrey V. Savochkin, 1996.
-
- Problems or questions may be send to Donald Becker (see above) or to
- Andrey Savochkin -- saw@shade.msu.ru or
- Laboratory of Computation Methods,
- Department of Mathematics and Mechanics,
- Moscow State University,
- Leninskye Gory, Moscow 119899
-
- But I should to inform you that I'm not an expert in the LANCE card
- and it may occurs that you will receive no answer on your mail
- to Donald Becker. I didn't receive any answer on all my letters
- to him. Who knows why... But may be you are more lucky? ;->
- SAW
-
+ Andrey V. Savochkin:
+ - alignment problem with 1.3.* kernel and some minor changes.
Thomas Bogendoerfer (tsbogend@bigbug.franken.de):
- added support for Linux/Alpha, but removed most of it, because
it worked only for the PCI chip.
--- /dev/null
+/*
+ * lanstreamer.c -- driver for the IBM Auto LANStreamer PCI Adapter
+ *
+ * Written By: Mike Sullivan, IBM Corporation
+ *
+ * Copyright (C) 1999 IBM Corporation
+ *
+ * Linux driver for IBM PCI tokenring cards based on the LanStreamer MPC
+ * chipset.
+ *
+ * This driver is based on the olympic driver for IBM PCI TokenRing cards (Pit/Pit-Phy/Olympic
+ * chipsets) written by:
+ * 1999 Peter De Schrijver All Rights Reserved
+ * 1999 Mike Phillips (phillim@amtrak.com)
+ *
+ * Base Driver Skeleton:
+ * Written 1993-94 by Donald Becker.
+ *
+ * Copyright 1993 United States Government as represented by the
+ * Director, National Security Agency.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ *
+ * 12/10/99 - Alpha Release 0.1.0
+ * First release to the public
+ * 03/03/00 - Merged to kernel, indented -kr -i8 -bri0, fixed some missing
+ * malloc free checks, reviewed code. <alan@redhat.com>
+ *
+ * To Do:
+ *
+ * 1) Test Network Monitor Mode
+ * 2) Add auto reset logic on adapter errors
+ * 3) Test with varying options
+ *
+ * If Problems do Occur
+ * Most problems can be rectified by either closing and opening the interface
+ * (ifconfig down and up) or rmmod and insmod'ing the driver (a bit difficult
+ * if compiled into the kernel).
+ */
+
+/* Change STREAMER_DEBUG to 1 to get verbose, and I mean really verbose, messages */
+
+#define STREAMER_DEBUG 0
+#define STREAMER_DEBUG_PACKETS 0
+
+/* Change STREAMER_NETWORK_MONITOR to receive mac frames through the arb channel.
+ * Will also create a /proc/net/streamer_tr entry if proc_fs is compiled into the
+ * kernel.
+ * Intended to be used to create a ring-error reporting network module
+ * i.e. it will give you the source address of beaconers on the ring
+ */
+
+#define STREAMER_NETWORK_MONITOR 0
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/timer.h>
+#include <linux/in.h>
+#include <linux/ioport.h>
+#include <linux/string.h>
+#include <linux/proc_fs.h>
+#include <linux/ptrace.h>
+#include <linux/skbuff.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/trdevice.h>
+#include <linux/stddef.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <net/checksum.h>
+
+#include <asm/io.h>
+#include <asm/system.h>
+#include <asm/bitops.h>
+
+#include "lanstreamer.h"
+
+/* I've got to put some intelligence into the version number so that Peter and I know
+ * which version of the code somebody has got.
+ * Version Number = a.b.c.d where a.b.c is the level of code and d is the latest author.
+ * So 0.0.1.pds = Peter, 0.0.1.mlp = Mike
+ *
+ * Official releases will only have an a.b.c version number format.
+ */
+
+static char *version = "LanStreamer.c v0.1.0 12/10/99 - Mike Sullivan";
+
+static char *open_maj_error[] = {
+ "No error", "Lobe Media Test", "Physical Insertion",
+ "Address Verification", "Neighbor Notification (Ring Poll)",
+ "Request Parameters", "FDX Registration Request",
+ "FDX Lobe Media Test", "FDX Duplicate Address Check",
+ "Unknown stage"
+};
+
+static char *open_min_error[] = {
+ "No error", "Function Failure", "Signal Lost", "Wire Fault",
+ "Ring Speed Mismatch", "Timeout", "Ring Failure", "Ring Beaconing",
+ "Duplicate Node Address", "Request Parameters", "Remove Received",
+ "Reserved", "Reserved", "No Monitor Detected for RPL",
+ "Monitor Contention failer for RPL", "FDX Protocol Error"
+};
+
+/* Module paramters */
+
+/* Ring Speed 0,4,16
+ * 0 = Autosense
+ * 4,16 = Selected speed only, no autosense
+ * This allows the card to be the first on the ring
+ * and become the active monitor.
+ *
+ * WARNING: Some hubs will allow you to insert
+ * at the wrong speed
+ */
+
+static int ringspeed[STREAMER_MAX_ADAPTERS] = { 0, };
+
+MODULE_PARM(ringspeed, "1-" __MODULE_STRING(STREAMER_MAX_ADAPTERS) "i");
+
+/* Packet buffer size */
+
+static int pkt_buf_sz[STREAMER_MAX_ADAPTERS] = { 0, };
+
+MODULE_PARM(pkt_buf_sz, "1-" __MODULE_STRING(STREAMER_MAX_ADAPTERS) "i");
+
+/* Message Level */
+
+static int message_level[STREAMER_MAX_ADAPTERS] = { 1, };
+
+MODULE_PARM(message_level,
+ "1-" __MODULE_STRING(STREAMER_MAX_ADAPTERS) "i");
+
+static int streamer_scan(struct device *dev);
+static int streamer_init(struct device *dev);
+static int streamer_open(struct device *dev);
+static int streamer_xmit(struct sk_buff *skb, struct device *dev);
+static int streamer_close(struct device *dev);
+static void streamer_set_rx_mode(struct device *dev);
+static void streamer_interrupt(int irq, void *dev_id,
+ struct pt_regs *regs);
+static struct net_device_stats *streamer_get_stats(struct device *dev);
+static int streamer_set_mac_address(struct device *dev, void *addr);
+static void streamer_arb_cmd(struct device *dev);
+static int streamer_change_mtu(struct device *dev, int mtu);
+static void streamer_srb_bh(struct device *dev);
+static void streamer_asb_bh(struct device *dev);
+#if STREAMER_NETWORK_MONITOR
+#ifdef CONFIG_PROC_FS
+static int sprintf_info(char *buffer, struct device *dev);
+#endif
+#endif
+
+int __init streamer_probe(struct device *dev)
+{
+ int cards_found;
+
+ cards_found = streamer_scan(dev);
+ return cards_found ? 0 : -ENODEV;
+}
+
+static int __init streamer_scan(struct device *dev)
+{
+ struct pci_dev *pci_device = NULL;
+ struct streamer_private *streamer_priv;
+ int card_no = 0;
+ if (pci_present())
+ {
+ while ((pci_device = pci_find_device(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_TR, pci_device)))
+ {
+ pci_set_master(pci_device);
+
+ /* Check to see if io has been allocated, if so, we've already done this card,
+ so continue on the card discovery loop */
+
+ if (check_region(pci_device->base_address[0] & (~3), STREAMER_IO_SPACE))
+ {
+ card_no++;
+ continue;
+ }
+
+ streamer_priv = kmalloc(sizeof(struct streamer_private), GFP_KERNEL);
+ if(streamer_priv==NULL)
+ {
+ printk(KERN_ERR "lanstreamer: out of memory.\n");
+ break;
+ }
+ memset(streamer_priv, 0, sizeof(struct streamer_private));
+#ifndef MODULE
+ dev = init_trdev(dev, 0);
+ if(dev==NULL)
+ {
+ kfree(streamer_priv);
+ printk(KERN_ERR "lanstreamer: out of memory.\n");
+ break;
+ }
+#endif
+ dev->priv = (void *) streamer_priv;
+#if STREAMER_DEBUG
+ printk("pci_device: %p, dev:%p, dev->priv: %p\n",
+ pci_device, dev, dev->priv);
+#endif
+ dev->irq = pci_device->irq;
+ dev->base_addr = pci_device->base_address[0] & (~3);
+ dev->init = &streamer_init;
+ streamer_priv->streamer_mmio = ioremap(pci_device->base_address[1], 256);
+
+ if ((pkt_buf_sz[card_no] < 100) || (pkt_buf_sz[card_no] > 18000))
+ streamer_priv->pkt_buf_sz = PKT_BUF_SZ;
+ else
+ streamer_priv->pkt_buf_sz = pkt_buf_sz[card_no];
+
+ streamer_priv->streamer_ring_speed = ringspeed[card_no];
+ streamer_priv->streamer_message_level = message_level[card_no];
+ streamer_priv->streamer_multicast_set = 0;
+
+ if (streamer_init(dev) == -1) {
+ unregister_netdevice(dev);
+ kfree(dev->priv);
+ return 0;
+ }
+
+ dev->open = &streamer_open;
+ dev->hard_start_xmit = &streamer_xmit;
+ dev->change_mtu = &streamer_change_mtu;
+
+ dev->stop = &streamer_close;
+ dev->do_ioctl = NULL;
+ dev->set_multicast_list = &streamer_set_rx_mode;
+ dev->get_stats = &streamer_get_stats;
+ dev->set_mac_address = &streamer_set_mac_address;
+ return 1;
+ }
+ }
+ return 0;
+}
+
+
+static int __init streamer_init(struct device *dev)
+{
+ struct streamer_private *streamer_priv;
+ __u8 *streamer_mmio;
+ unsigned long t;
+ unsigned int uaa_addr;
+ struct sk_buff *skb = 0;
+ __u16 misr;
+
+ streamer_priv = (struct streamer_private *) dev->priv;
+ streamer_mmio = streamer_priv->streamer_mmio;
+
+ printk("%s \n", version);
+ printk(KERN_INFO "%s: IBM PCI tokenring card. I/O at %hx, MMIO at %p, using irq %d\n",
+ dev->name, (unsigned int) dev->base_addr,
+ streamer_priv->streamer_mmio, dev->irq);
+
+ request_region(dev->base_addr, STREAMER_IO_SPACE, "streamer");
+ writew(readw(streamer_mmio + BCTL) | BCTL_SOFTRESET, streamer_mmio + BCTL);
+ t = jiffies;
+ /* Hold soft reset bit for a while */
+ current->state = TASK_UNINTERRUPTIBLE;
+ schedule_timeout(HZ);
+
+ writew(readw(streamer_mmio + BCTL) & ~BCTL_SOFTRESET,
+ streamer_mmio + BCTL);
+
+#if STREAMER_DEBUG
+ printk("BCTL: %x\n", readw(streamer_mmio + BCTL));
+ printk("GPR: %x\n", readw(streamer_mmio + GPR));
+ printk("SISRMASK: %x\n", readw(streamer_mmio + SISR_MASK));
+#endif
+
+ if (streamer_priv->streamer_ring_speed == 0) { /* Autosense */
+ writew(readw(streamer_mmio + GPR) | GPR_AUTOSENSE,
+ streamer_mmio + GPR);
+ if (streamer_priv->streamer_message_level)
+ printk(KERN_INFO "%s: Ringspeed autosense mode on\n",
+ dev->name);
+ } else if (streamer_priv->streamer_ring_speed == 16) {
+ if (streamer_priv->streamer_message_level)
+ printk(KERN_INFO "%s: Trying to open at 16 Mbps as requested\n",
+ dev->name);
+ writew(GPR_16MBPS, streamer_mmio + GPR);
+ } else if (streamer_priv->streamer_ring_speed == 4) {
+ if (streamer_priv->streamer_message_level)
+ printk(KERN_INFO "%s: Trying to open at 4 Mbps as requested\n",
+ dev->name);
+ writew(0, streamer_mmio + GPR);
+ }
+
+ skb = dev_alloc_skb(streamer_priv->pkt_buf_sz);
+ if (!skb) {
+ printk(KERN_INFO "%s: skb allocation for diagnostics failed...proceeding\n",
+ dev->name);
+ } else {
+ streamer_priv->streamer_rx_ring[0].forward = 0;
+ streamer_priv->streamer_rx_ring[0].status = 0;
+ streamer_priv->streamer_rx_ring[0].buffer = virt_to_bus(skb->data);
+ streamer_priv->streamer_rx_ring[0].framelen_buflen = 512; /* streamer_priv->pkt_buf_sz; */
+ writel(virt_to_bus(&streamer_priv->streamer_rx_ring[0]), streamer_mmio + RXBDA);
+ }
+
+#if STREAMER_DEBUG
+ printk("GPR = %x\n", readw(streamer_mmio + GPR));
+#endif
+ /* start solo init */
+ writew(SISR_MI, streamer_mmio + SISR_MASK_SUM);
+
+ while (!((readw(streamer_mmio + SISR)) & SISR_SRB_REPLY)) {
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(HZ/10);
+ if (jiffies - t > 40 * HZ) {
+ printk(KERN_ERR
+ "IBM PCI tokenring card not responding\n");
+ release_region(dev->base_addr, STREAMER_IO_SPACE);
+ return -1;
+ }
+ }
+ writew(~SISR_SRB_REPLY, streamer_mmio + SISR_RUM);
+ misr = readw(streamer_mmio + MISR_RUM);
+ writew(~misr, streamer_mmio + MISR_RUM);
+
+ if (skb)
+ dev_kfree_skb(skb); /* release skb used for diagnostics */
+
+#if STREAMER_DEBUG
+ printk("LAPWWO: %x, LAPA: %x LAPE: %x\n",
+ readw(streamer_mmio + LAPWWO), readw(streamer_mmio + LAPA),
+ readw(streamer_mmio + LAPE));
+#endif
+
+#if STREAMER_DEBUG
+ {
+ int i;
+ writew(readw(streamer_mmio + LAPWWO),
+ streamer_mmio + LAPA);
+ printk("initialization response srb dump: ");
+ for (i = 0; i < 10; i++)
+ printk("%x:",
+ ntohs(readw(streamer_mmio + LAPDINC)));
+ printk("\n");
+ }
+#endif
+
+ writew(readw(streamer_mmio + LAPWWO) + 6, streamer_mmio + LAPA);
+ if (readw(streamer_mmio + LAPD)) {
+ printk(KERN_INFO "tokenring card intialization failed. errorcode : %x\n",
+ readw(streamer_mmio + LAPD));
+ release_region(dev->base_addr, STREAMER_IO_SPACE);
+ return -1;
+ }
+
+ writew(readw(streamer_mmio + LAPWWO) + 8, streamer_mmio + LAPA);
+ uaa_addr = ntohs(readw(streamer_mmio + LAPDINC));
+ readw(streamer_mmio + LAPDINC); /* skip over Level.Addr field */
+ streamer_priv->streamer_addr_table_addr = ntohs(readw(streamer_mmio + LAPDINC));
+ streamer_priv->streamer_parms_addr = ntohs(readw(streamer_mmio + LAPDINC));
+
+#if STREAMER_DEBUG
+ printk("UAA resides at %x\n", uaa_addr);
+#endif
+
+ /* setup uaa area for access with LAPD */
+ writew(uaa_addr, streamer_mmio + LAPA);
+
+ /* setup uaa area for access with LAPD */
+ {
+ int i;
+ __u16 addr;
+ writew(uaa_addr, streamer_mmio + LAPA);
+ for (i = 0; i < 6; i += 2) {
+ addr = readw(streamer_mmio + LAPDINC);
+ dev->dev_addr[i] = addr & 0xff;
+ dev->dev_addr[i + 1] = (addr >> 8) & 0xff;
+ }
+#if STREAMER_DEBUG
+ printk("Adapter address: ");
+ for (i = 0; i < 6; i++) {
+ printk("%02x:", dev->dev_addr[i]);
+ }
+ printk("\n");
+#endif
+ }
+ return 0;
+}
+
+static int streamer_open(struct device *dev)
+{
+ struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv;
+ __u8 *streamer_mmio = streamer_priv->streamer_mmio;
+ unsigned long flags;
+ char open_error[255];
+ int i, open_finished = 1;
+ __u16 srb_word;
+ __u16 srb_open;
+
+
+ if (request_irq(dev->irq, &streamer_interrupt, SA_SHIRQ, "streamer", dev)) {
+ return -EAGAIN;
+ }
+#if STREAMER_DEBUG
+ printk("BMCTL: %x\n", readw(streamer_mmio + BMCTL_SUM));
+ printk("pending ints: %x\n", readw(streamer_mmio + SISR));
+#endif
+
+ writew(SISR_MI | SISR_SRB_REPLY, streamer_mmio + SISR_MASK); /* more ints later, doesn't stop arb cmd interrupt */
+ writew(LISR_LIE, streamer_mmio + LISR); /* more ints later */
+
+ /* adapter is closed, so SRB is pointed to by LAPWWO */
+ writew(readw(streamer_mmio + LAPWWO), streamer_mmio + LAPA);
+
+#if STREAMER_DEBUG
+ printk("LAPWWO: %x, LAPA: %x\n", readw(streamer_mmio + LAPWWO),
+ readw(streamer_mmio + LAPA));
+ printk("LAPE: %x\n", readw(streamer_mmio + LAPE));
+ printk("SISR Mask = %04x\n", readw(streamer_mmio + SISR_MASK));
+#endif
+ do {
+ int i;
+
+ save_flags(flags);
+ cli();
+ for (i = 0; i < SRB_COMMAND_SIZE; i += 2) {
+ writew(0, streamer_mmio + LAPDINC);
+ }
+
+ writew(readw(streamer_mmio + LAPWWO), streamer_mmio + LAPA);
+ writew(SRB_OPEN_ADAPTER, streamer_mmio + LAPDINC); /* open */
+ writew(STREAMER_CLEAR_RET_CODE, streamer_mmio + LAPDINC);
+
+ writew(readw(streamer_mmio + LAPWWO) + 8, streamer_mmio + LAPA);
+#if STREAMER_NETWORK_MONITOR
+ /* If Network Monitor, instruct card to copy MAC frames through the ARB */
+ writew(ntohs(OPEN_ADAPTER_ENABLE_FDX | OPEN_ADAPTER_PASS_ADC_MAC | OPEN_ADAPTER_PASS_ATT_MAC | OPEN_ADAPTER_PASS_BEACON), streamer_mmio + LAPDINC); /* offset 8 word contains open options */
+#else
+ writew(ntohs(OPEN_ADAPTER_ENABLE_FDX), streamer_mmio + LAPDINC); /* Offset 8 word contains Open.Options */
+#endif
+
+ if (streamer_priv->streamer_laa[0]) {
+ writew(readw(streamer_mmio + LAPWWO) + 12, streamer_mmio + LAPA);
+ writew(((__u16 *) (streamer_priv->streamer_laa))[0], streamer_mmio + LAPDINC); /* offset 12 word */
+ writew(((__u16 *) (streamer_priv->streamer_laa))[2], streamer_mmio + LAPDINC); /* offset 14 word */
+ writew(((__u16 *) (streamer_priv->streamer_laa))[4], streamer_mmio + LAPDINC); /* offset 16 word */
+ memcpy(dev->dev_addr, streamer_priv->streamer_laa, dev->addr_len);
+ }
+
+ /* save off srb open offset */
+ srb_open = readw(streamer_mmio + LAPWWO);
+#if STREAMER_DEBUG
+ writew(readw(streamer_mmio + LAPWWO),
+ streamer_mmio + LAPA);
+ printk("srb open request: \n");
+ for (i = 0; i < 16; i++) {
+ printk("%x:", ntohs(readw(streamer_mmio + LAPDINC)));
+ }
+ printk("\n");
+#endif
+
+ streamer_priv->srb_queued = 1;
+
+ /* signal solo that SRB command has been issued */
+ writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM);
+
+ while (streamer_priv->srb_queued) {
+ interruptible_sleep_on_timeout(&streamer_priv->srb_wait, 5 * HZ);
+ if (signal_pending(current)) {
+ printk(KERN_WARNING "%s: SRB timed out.\n", dev->name);
+ printk(KERN_WARNING "SISR=%x MISR=%x, LISR=%x\n",
+ readw(streamer_mmio + SISR),
+ readw(streamer_mmio + MISR_RUM),
+ readw(streamer_mmio + LISR));
+ streamer_priv->srb_queued = 0;
+ break;
+ }
+ }
+ restore_flags(flags);
+
+#if STREAMER_DEBUG
+ printk("SISR_MASK: %x\n", readw(streamer_mmio + SISR_MASK));
+ printk("srb open response:\n");
+ writew(srb_open, streamer_mmio + LAPA);
+ for (i = 0; i < 10; i++) {
+ printk("%x:",
+ ntohs(readw(streamer_mmio + LAPDINC)));
+ }
+#endif
+
+ /* If we get the same return response as we set, the interrupt wasn't raised and the open
+ * timed out.
+ */
+ writew(srb_open + 2, streamer_mmio + LAPA);
+ srb_word = readw(streamer_mmio + LAPD) & 0xFF;
+ if (srb_word == STREAMER_CLEAR_RET_CODE) {
+ printk(KERN_WARNING "%s: Adapter Open time out or error.\n",
+ dev->name);
+ return -EIO;
+ }
+
+ if (srb_word != 0) {
+ if (srb_word == 0x07) {
+ if (!streamer_priv->streamer_ring_speed && open_finished) { /* Autosense , first time around */
+ printk(KERN_WARNING "%s: Retrying at different ring speed \n",
+ dev->name);
+ open_finished = 0;
+ } else {
+ __u16 error_code;
+
+ writew(srb_open + 6, streamer_mmio + LAPA);
+ error_code = ntohs(readw(streamer_mmio + LAPD));
+ strcpy(open_error, open_maj_error[(error_code & 0xf0) >> 4]);
+ strcat(open_error, " - ");
+ strcat(open_error, open_min_error[(error_code & 0x0f)]);
+
+ if (!streamer_priv->streamer_ring_speed
+ && ((error_code & 0x0f) == 0x0d))
+ {
+ printk(KERN_WARNING "%s: Tried to autosense ring speed with no monitors present\n", dev->name);
+ printk(KERN_WARNING "%s: Please try again with a specified ring speed \n", dev->name);
+ free_irq(dev->irq, dev);
+ return -EIO;
+ }
+
+ printk(KERN_WARNING "%s: %s\n",
+ dev->name, open_error);
+ free_irq(dev->irq, dev);
+ return -EIO;
+
+ } /* if autosense && open_finished */
+ } else {
+ printk(KERN_WARNING "%s: Bad OPEN response: %x\n",
+ dev->name, srb_word);
+ free_irq(dev->irq, dev);
+ return -EIO;
+ }
+ } else
+ open_finished = 1;
+ } while (!(open_finished)); /* Will only loop if ring speed mismatch re-open attempted && autosense is on */
+
+ writew(srb_open + 18, streamer_mmio + LAPA);
+ srb_word = readw(streamer_mmio + LAPD) & 0xFF;
+ if (srb_word & (1 << 3))
+ if (streamer_priv->streamer_message_level)
+ printk(KERN_INFO "%s: Opened in FDX Mode\n", dev->name);
+
+ if (srb_word & 1)
+ streamer_priv->streamer_ring_speed = 16;
+ else
+ streamer_priv->streamer_ring_speed = 4;
+
+ if (streamer_priv->streamer_message_level)
+ printk(KERN_INFO "%s: Opened in %d Mbps mode\n",
+ dev->name,
+ streamer_priv->streamer_ring_speed);
+
+ writew(srb_open + 8, streamer_mmio + LAPA);
+ streamer_priv->asb = ntohs(readw(streamer_mmio + LAPDINC));
+ streamer_priv->srb = ntohs(readw(streamer_mmio + LAPDINC));
+ streamer_priv->arb = ntohs(readw(streamer_mmio + LAPDINC));
+ readw(streamer_mmio + LAPDINC); /* offset 14 word is rsvd */
+ streamer_priv->trb = ntohs(readw(streamer_mmio + LAPDINC));
+
+ streamer_priv->streamer_receive_options = 0x00;
+ streamer_priv->streamer_copy_all_options = 0;
+
+ /* setup rx ring */
+ /* enable rx channel */
+ writew(~BMCTL_RX_DIS, streamer_mmio + BMCTL_RUM);
+
+ /* setup rx descriptors */
+ for (i = 0; i < STREAMER_RX_RING_SIZE; i++) {
+ struct sk_buff *skb;
+
+ skb = dev_alloc_skb(streamer_priv->pkt_buf_sz);
+ if (skb == NULL)
+ break;
+
+ skb->dev = dev;
+
+ streamer_priv->streamer_rx_ring[i].forward = virt_to_bus(&streamer_priv->streamer_rx_ring[i + 1]);
+ streamer_priv->streamer_rx_ring[i].status = 0;
+ streamer_priv->streamer_rx_ring[i].buffer = virt_to_bus(skb->data);
+ streamer_priv->streamer_rx_ring[i].framelen_buflen = streamer_priv->pkt_buf_sz;
+ streamer_priv->rx_ring_skb[i] = skb;
+ }
+ streamer_priv->streamer_rx_ring[STREAMER_RX_RING_SIZE - 1].forward =
+ virt_to_bus(&streamer_priv->streamer_rx_ring[0]);
+
+ if (i == 0) {
+ printk(KERN_WARNING "%s: Not enough memory to allocate rx buffers. Adapter disabled\n", dev->name);
+ free_irq(dev->irq, dev);
+ return -EIO;
+ }
+
+ streamer_priv->rx_ring_last_received = STREAMER_RX_RING_SIZE - 1; /* last processed rx status */
+
+ writel(virt_to_bus(&streamer_priv->streamer_rx_ring[0]), streamer_mmio + RXBDA);
+ writel(virt_to_bus(&streamer_priv->streamer_rx_ring[STREAMER_RX_RING_SIZE - 1]), streamer_mmio + RXLBDA);
+
+ /* set bus master interrupt event mask */
+ writew(MISR_RX_NOBUF | MISR_RX_EOF, streamer_mmio + MISR_MASK);
+
+
+ /* setup tx ring */
+ writew(~BMCTL_TX2_DIS, streamer_mmio + BMCTL_RUM); /* Enables TX channel 2 */
+ for (i = 0; i < STREAMER_TX_RING_SIZE; i++) {
+ streamer_priv->streamer_tx_ring[i].forward = virt_to_bus(&streamer_priv->streamer_tx_ring[i + 1]);
+ streamer_priv->streamer_tx_ring[i].status = 0;
+ streamer_priv->streamer_tx_ring[i].bufcnt_framelen = 0;
+ streamer_priv->streamer_tx_ring[i].buffer = 0;
+ streamer_priv->streamer_tx_ring[i].buflen = 0;
+ }
+ streamer_priv->streamer_tx_ring[STREAMER_TX_RING_SIZE - 1].forward =
+ virt_to_bus(&streamer_priv->streamer_tx_ring[0]);;
+
+ streamer_priv->free_tx_ring_entries = STREAMER_TX_RING_SIZE;
+ streamer_priv->tx_ring_free = 0; /* next entry in tx ring to use */
+ streamer_priv->tx_ring_last_status = STREAMER_TX_RING_SIZE - 1;
+
+ /* set Busmaster interrupt event mask (handle receives on interrupt only */
+ writew(MISR_TX2_EOF | MISR_RX_NOBUF | MISR_RX_EOF, streamer_mmio + MISR_MASK);
+ /* set system event interrupt mask */
+ writew(SISR_ADAPTER_CHECK | SISR_ARB_CMD | SISR_TRB_REPLY | SISR_ASB_FREE, streamer_mmio + SISR_MASK_SUM);
+
+#if STREAMER_DEBUG
+ printk("BMCTL: %x\n", readw(streamer_mmio + BMCTL_SUM));
+ printk("SISR MASK: %x\n", readw(streamer_mmio + SISR_MASK));
+#endif
+
+#if STREAMER_NETWORK_MONITOR
+
+ writew(streamer_priv->streamer_addr_table_addr, streamer_mmio + LAPA);
+ printk("%s: Node Address: %04x:%04x:%04x\n", dev->name,
+ ntohs(readw(streamer_mmio + LAPDINC)),
+ ntohs(readw(streamer_mmio + LAPDINC)),
+ ntohs(readw(streamer_mmio + LAPDINC)));
+ readw(streamer_mmio + LAPDINC);
+ readw(streamer_mmio + LAPDINC);
+ printk("%s: Functional Address: %04x:%04x\n", dev->name,
+ ntohs(readw(streamer_mmio + LAPDINC)),
+ ntohs(readw(streamer_mmio + LAPDINC)));
+
+ writew(streamer_priv->streamer_parms_addr + 4,
+ streamer_mmio + LAPA);
+ printk("%s: NAUN Address: %04x:%04x:%04x\n", dev->name,
+ ntohs(readw(streamer_mmio + LAPDINC)),
+ ntohs(readw(streamer_mmio + LAPDINC)),
+ ntohs(readw(streamer_mmio + LAPDINC)));
+#endif
+
+ dev->start = 1;
+ dev->interrupt = 0;
+ dev->tbusy = 0;
+
+ MOD_INC_USE_COUNT;
+ return 0;
+}
+
+/*
+ * When we enter the rx routine we do not know how many frames have been
+ * queued on the rx channel. Therefore we start at the next rx status
+ * position and travel around the receive ring until we have completed
+ * all the frames.
+ *
+ * This means that we may process the frame before we receive the end
+ * of frame interrupt. This is why we always test the status instead
+ * of blindly processing the next frame.
+ *
+ */
+static void streamer_rx(struct device *dev)
+{
+ struct streamer_private *streamer_priv =
+ (struct streamer_private *) dev->priv;
+ __u8 *streamer_mmio = streamer_priv->streamer_mmio;
+ struct streamer_rx_desc *rx_desc;
+ int rx_ring_last_received, length, frame_length, buffer_cnt = 0;
+ struct sk_buff *skb, *skb2;
+
+ /* setup the next rx descriptor to be received */
+ rx_desc = &streamer_priv->streamer_rx_ring[(streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1)];
+ rx_ring_last_received = streamer_priv->rx_ring_last_received;
+
+ while (rx_desc->status & 0x01000000) { /* While processed descriptors are available */
+ if (rx_ring_last_received != streamer_priv->rx_ring_last_received)
+ {
+ printk(KERN_WARNING "RX Error 1 rx_ring_last_received not the same %x %x\n",
+ rx_ring_last_received, streamer_priv->rx_ring_last_received);
+ }
+ streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1);
+ rx_ring_last_received = streamer_priv->rx_ring_last_received;
+
+ length = rx_desc->framelen_buflen & 0xffff; /* buffer length */
+ frame_length = (rx_desc->framelen_buflen >> 16) & 0xffff;
+
+ if (rx_desc->status & 0x7E830000) { /* errors */
+ if (streamer_priv->streamer_message_level) {
+ printk(KERN_WARNING "%s: Rx Error %x \n",
+ dev->name, rx_desc->status);
+ }
+ } else { /* received without errors */
+ if (rx_desc->status & 0x80000000) { /* frame complete */
+ buffer_cnt = 1;
+ skb = dev_alloc_skb(streamer_priv->pkt_buf_sz);
+ } else {
+ skb = dev_alloc_skb(frame_length);
+ }
+
+ if (skb == NULL)
+ {
+ printk(KERN_WARNING "%s: Not enough memory to copy packet to upper layers. \n", dev->name);
+ streamer_priv->streamer_stats.rx_dropped++;
+ } else { /* we allocated an skb OK */
+ skb->dev = dev;
+
+ if (buffer_cnt == 1) {
+ skb2 = streamer_priv->rx_ring_skb[rx_ring_last_received];
+#if STREAMER_DEBUG_PACKETS
+ {
+ int i;
+ printk("streamer_rx packet print: skb->data2 %p skb->head %p\n", skb2->data, skb2->head);
+ for (i = 0; i < frame_length; i++)
+ {
+ printk("%x:", skb2->data[i]);
+ if (((i + 1) % 16) == 0)
+ printk("\n");
+ }
+ printk("\n");
+ }
+#endif
+ skb_put(skb2, length);
+ skb2->protocol = tr_type_trans(skb2, dev);
+ /* recycle this descriptor */
+ streamer_priv->streamer_rx_ring[rx_ring_last_received].status = 0;
+ streamer_priv->streamer_rx_ring[rx_ring_last_received].framelen_buflen = streamer_priv->pkt_buf_sz;
+ streamer_priv->streamer_rx_ring[rx_ring_last_received].buffer = virt_to_bus(skb->data);
+ streamer_priv-> rx_ring_skb[rx_ring_last_received] = skb;
+ /* place recycled descriptor back on the adapter */
+ writel(virt_to_bus(&streamer_priv->streamer_rx_ring[rx_ring_last_received]),streamer_mmio + RXLBDA);
+ /* pass the received skb up to the protocol */
+ netif_rx(skb2);
+ } else {
+ do { /* Walk the buffers */
+ memcpy(skb_put(skb, length),bus_to_virt(rx_desc->buffer), length); /* copy this fragment */
+ streamer_priv->streamer_rx_ring[rx_ring_last_received].status = 0;
+ streamer_priv->streamer_rx_ring[rx_ring_last_received].framelen_buflen = streamer_priv->pkt_buf_sz;
+ streamer_priv->streamer_rx_ring[rx_ring_last_received].buffer = virt_to_bus(skb->data);
+ /* give descriptor back to the adapter */
+ writel(virt_to_bus(&streamer_priv->streamer_rx_ring[rx_ring_last_received]), streamer_mmio + RXLBDA);
+
+ if (rx_desc->status & 0x80000000)
+ break; /* this descriptor completes the frame */
+
+ /* else get the next pending descriptor */
+ if (rx_ring_last_received!= streamer_priv->rx_ring_last_received)
+ {
+ printk("RX Error rx_ring_last_received not the same %x %x\n",
+ rx_ring_last_received,
+ streamer_priv->rx_ring_last_received);
+ }
+ rx_desc = &streamer_priv->streamer_rx_ring[(streamer_priv->rx_ring_last_received+1) & (STREAMER_RX_RING_SIZE-1)];
+
+ length = rx_desc->framelen_buflen & 0xffff; /* buffer length */
+ streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received+1) & (STREAMER_RX_RING_SIZE - 1);
+ rx_ring_last_received = streamer_priv->rx_ring_last_received;
+ } while (1);
+
+ skb->protocol = tr_type_trans(skb, dev);
+ /* send up to the protocol */
+ netif_rx(skb);
+ }
+ streamer_priv->streamer_stats.rx_packets++;
+ streamer_priv->streamer_stats.rx_bytes += length;
+ } /* if skb == null */
+ } /* end received without errors */
+
+ /* try the next one */
+ rx_desc = &streamer_priv->streamer_rx_ring[(rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1)];
+ } /* end for all completed rx descriptors */
+}
+
+static void streamer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct device *dev = (struct device *) dev_id;
+ struct streamer_private *streamer_priv =
+ (struct streamer_private *) dev->priv;
+ __u8 *streamer_mmio = streamer_priv->streamer_mmio;
+ __u16 sisr;
+ __u16 misr;
+ __u16 sisrmask;
+
+ sisrmask = SISR_MI;
+ writew(~sisrmask, streamer_mmio + SISR_MASK_RUM);
+ sisr = readw(streamer_mmio + SISR);
+ writew(~sisr, streamer_mmio + SISR_RUM);
+ misr = readw(streamer_mmio + MISR_RUM);
+ writew(~misr, streamer_mmio + MISR_RUM);
+
+ if (!sisr) { /* Interrupt isn't for us */
+ return;
+ }
+
+ if (dev->interrupt)
+ printk(KERN_WARNING "%s: Re-entering interrupt \n", dev->name);
+
+ dev->interrupt = 1;
+
+ if ((sisr & (SISR_SRB_REPLY | SISR_ADAPTER_CHECK | SISR_ASB_FREE | SISR_ARB_CMD | SISR_TRB_REPLY))
+ || (misr & (MISR_TX2_EOF | MISR_RX_NOBUF | MISR_RX_EOF))) {
+ if (sisr & SISR_SRB_REPLY) {
+ if (streamer_priv->srb_queued == 1) {
+ wake_up_interruptible(&streamer_priv->srb_wait);
+ } else if (streamer_priv->srb_queued == 2) {
+ streamer_srb_bh(dev);
+ }
+ streamer_priv->srb_queued = 0;
+ }
+ /* SISR_SRB_REPLY */
+ if (misr & MISR_TX2_EOF) {
+ while (streamer_priv->streamer_tx_ring[(streamer_priv->tx_ring_last_status + 1) & (STREAMER_TX_RING_SIZE - 1)].status)
+ {
+ streamer_priv->tx_ring_last_status = (streamer_priv->tx_ring_last_status + 1) & (STREAMER_TX_RING_SIZE - 1);
+ streamer_priv->free_tx_ring_entries++;
+ streamer_priv->streamer_stats.tx_bytes += streamer_priv->tx_ring_skb[streamer_priv->tx_ring_last_status]->len;
+ streamer_priv->streamer_stats.tx_packets++;
+ dev_kfree_skb(streamer_priv->tx_ring_skb[streamer_priv->tx_ring_last_status]);
+ streamer_priv-> streamer_tx_ring[streamer_priv->tx_ring_last_status].buffer = 0xdeadbeef;
+ streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].status = 0;
+ streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].bufcnt_framelen = 0;
+ streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_last_status].buflen = 0;
+ }
+ if (dev->tbusy) {
+ dev->tbusy = 0;
+ mark_bh(NET_BH);
+ }
+ }
+
+ if (misr & MISR_RX_EOF) {
+ streamer_rx(dev);
+ }
+ /* MISR_RX_EOF */
+ if (sisr & SISR_ADAPTER_CHECK) {
+ printk(KERN_WARNING "%s: Adapter Check Interrupt Raised, 8 bytes of information follow:\n", dev->name);
+ writel(readl(streamer_mmio + LAPWWO), streamer_mmio + LAPA);
+ printk(KERN_WARNING "%s: Words %x:%x:%x:%x:\n",
+ dev->name, readw(streamer_mmio + LAPDINC),
+ readw(streamer_mmio + LAPDINC),
+ readw(streamer_mmio + LAPDINC),
+ readw(streamer_mmio + LAPDINC));
+ dev->interrupt = 0;
+ free_irq(dev->irq, dev);
+ }
+
+ /* SISR_ADAPTER_CHECK */
+ if (sisr & SISR_ASB_FREE) {
+ /* Wake up anything that is waiting for the asb response */
+ if (streamer_priv->asb_queued) {
+ streamer_asb_bh(dev);
+ }
+ }
+ /* SISR_ASB_FREE */
+ if (sisr & SISR_ARB_CMD) {
+ streamer_arb_cmd(dev);
+ }
+ /* SISR_ARB_CMD */
+ if (sisr & SISR_TRB_REPLY) {
+ /* Wake up anything that is waiting for the trb response */
+ if (streamer_priv->trb_queued) {
+ wake_up_interruptible(&streamer_priv->
+ trb_wait);
+ }
+ streamer_priv->trb_queued = 0;
+ }
+ /* SISR_TRB_REPLY */
+ if (misr & MISR_RX_NOBUF) {
+ /* According to the documentation, we don't have to do anything, but trapping it keeps it out of
+ /var/log/messages. */
+ } /* SISR_RX_NOBUF */
+ } else {
+ printk(KERN_WARNING "%s: Unexpected interrupt: %x\n",
+ dev->name, sisr);
+ printk(KERN_WARNING "%s: SISR_MASK: %x\n", dev->name,
+ readw(streamer_mmio + SISR_MASK));
+ } /* One if the interrupts we want */
+
+ dev->interrupt = 0;
+ writew(SISR_MI, streamer_mmio + SISR_MASK_SUM);
+}
+
+
+static int streamer_xmit(struct sk_buff *skb, struct device *dev)
+{
+ struct streamer_private *streamer_priv =
+ (struct streamer_private *) dev->priv;
+ __u8 *streamer_mmio = streamer_priv->streamer_mmio;
+
+ if (test_and_set_bit(0, (void *) &dev->tbusy) != 0) {
+ return 1;
+ }
+
+ if (streamer_priv->free_tx_ring_entries) {
+ streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].status = 0;
+ streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].bufcnt_framelen = 0x00010000 | skb->len;
+ streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].buffer = virt_to_bus(skb->data);
+ streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free].buflen = skb->len;
+ streamer_priv->tx_ring_skb[streamer_priv->tx_ring_free] = skb;
+ streamer_priv->free_tx_ring_entries--;
+#if STREAMER_DEBUG_PACKETS
+ {
+ int i;
+ printk("streamer_xmit packet print:\n");
+ for (i = 0; i < skb->len; i++) {
+ printk("%x:", skb->data[i]);
+ if (((i + 1) % 16) == 0)
+ printk("\n");
+ }
+ printk("\n");
+ }
+#endif
+
+ writel(virt_to_bus (&streamer_priv->streamer_tx_ring[streamer_priv->tx_ring_free]),streamer_mmio + TX2LFDA);
+
+ streamer_priv->tx_ring_free = (streamer_priv->tx_ring_free + 1) & (STREAMER_TX_RING_SIZE - 1);
+ dev->tbusy = 0;
+ return 0;
+ } else {
+ return 1;
+ }
+}
+
+
+static int streamer_close(struct device *dev)
+{
+ struct streamer_private *streamer_priv =
+ (struct streamer_private *) dev->priv;
+ __u8 *streamer_mmio = streamer_priv->streamer_mmio;
+ unsigned long flags;
+ int i;
+
+ writew(streamer_priv->srb, streamer_mmio + LAPA);
+ writew(SRB_CLOSE_ADAPTER, streamer_mmio + LAPDINC);
+ writew(STREAMER_CLEAR_RET_CODE, streamer_mmio + LAPDINC);
+
+ save_flags(flags);
+ cli();
+
+ streamer_priv->srb_queued = 1;
+ writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM);
+
+ while (streamer_priv->srb_queued)
+ {
+ interruptible_sleep_on_timeout(&streamer_priv->srb_wait,
+ jiffies + 60 * HZ);
+ if (signal_pending(current))
+ {
+ printk(KERN_WARNING "%s: SRB timed out.\n", dev->name);
+ printk(KERN_WARNING "SISR=%x MISR=%x LISR=%x\n",
+ readw(streamer_mmio + SISR),
+ readw(streamer_mmio + MISR_RUM),
+ readw(streamer_mmio + LISR));
+ streamer_priv->srb_queued = 0;
+ break;
+ }
+ }
+
+ restore_flags(flags);
+ streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1);
+
+ for (i = 0; i < STREAMER_RX_RING_SIZE; i++) {
+ dev_kfree_skb(streamer_priv->rx_ring_skb[streamer_priv->rx_ring_last_received]);
+ streamer_priv->rx_ring_last_received = (streamer_priv->rx_ring_last_received + 1) & (STREAMER_RX_RING_SIZE - 1);
+ }
+
+ /* reset tx/rx fifo's and busmaster logic */
+
+ /* TBD. Add graceful way to reset the LLC channel without doing a soft reset.
+ writel(readl(streamer_mmio+BCTL)|(3<<13),streamer_mmio+BCTL);
+ udelay(1);
+ writel(readl(streamer_mmio+BCTL)&~(3<<13),streamer_mmio+BCTL);
+ */
+
+#if STREAMER_DEBUG
+ writew(streamer_priv->srb, streamer_mmio + LAPA);
+ printk("srb): ");
+ for (i = 0; i < 2; i++) {
+ printk("%x ", htons(readw(streamer_mmio + LAPDINC)));
+ }
+ printk("\n");
+#endif
+ dev->start = 0;
+ free_irq(dev->irq, dev);
+
+ MOD_DEC_USE_COUNT;
+ return 0;
+}
+
+static void streamer_set_rx_mode(struct device *dev)
+{
+ struct streamer_private *streamer_priv =
+ (struct streamer_private *) dev->priv;
+ __u8 *streamer_mmio = streamer_priv->streamer_mmio;
+ __u8 options = 0, set_mc_list = 0;
+ __u16 ata1, ata2;
+ struct dev_mc_list *dmi;
+
+ writel(streamer_priv->srb, streamer_mmio + LAPA);
+ options = streamer_priv->streamer_copy_all_options;
+
+ if (dev->flags & IFF_PROMISC)
+ options |= (3 << 5); /* All LLC and MAC frames, all through the main rx channel */
+ else
+ options &= ~(3 << 5);
+
+ if (dev->mc_count) {
+ set_mc_list = 1;
+ }
+
+ /* Only issue the srb if there is a change in options */
+
+ if ((options ^ streamer_priv->streamer_copy_all_options))
+ {
+ /* Now to issue the srb command to alter the copy.all.options */
+
+ writew(SRB_MODIFY_RECEIVE_OPTIONS,
+ streamer_mmio + LAPDINC);
+ writew(STREAMER_CLEAR_RET_CODE, streamer_mmio + LAPDINC);
+ writew(streamer_priv->streamer_receive_options | (options << 8), streamer_mmio + LAPDINC);
+ writew(0x414a, streamer_mmio + LAPDINC);
+ writew(0x454d, streamer_mmio + LAPDINC);
+ writew(0x2053, streamer_mmio + LAPDINC);
+ writew(0x2020, streamer_mmio + LAPDINC);
+
+ streamer_priv->srb_queued = 2; /* Can't sleep, use srb_bh */
+
+ writel(LISR_SRB_CMD, streamer_mmio + LISR_SUM);
+
+ streamer_priv->streamer_copy_all_options = options;
+ return;
+ }
+
+ if (set_mc_list ^ streamer_priv->streamer_multicast_set)
+ { /* Multicast options have changed */
+ dmi = dev->mc_list;
+
+ writel(streamer_priv->streamer_addr_table_addr, streamer_mmio + LAPA);
+ ata1 = readw(streamer_mmio + LAPDINC);
+ ata2 = readw(streamer_mmio + LAPD);
+
+ writel(streamer_priv->srb, streamer_mmio + LAPA);
+
+ if (set_mc_list)
+ {
+ /* Turn multicast on */
+
+ /* RFC 1469 Says we must support using the functional address C0 00 00 04 00 00
+ * We do this with a set functional address mask.
+ */
+
+ if (!(ata1 & 0x0400)) { /* need to set functional mask */
+ writew(SRB_SET_FUNC_ADDRESS, streamer_mmio + LAPDINC);
+ writew(STREAMER_CLEAR_RET_CODE, streamer_mmio + LAPDINC);
+ writew(0, streamer_mmio + LAPDINC);
+ writew(ata1 | 0x0400, streamer_mmio + LAPDINC);
+ writew(ata2, streamer_mmio + LAPD);
+
+ streamer_priv->srb_queued = 2;
+ writel(LISR_SRB_CMD, streamer_mmio + LISR_SUM);
+
+ streamer_priv->streamer_multicast_set = 1;
+ }
+
+ } else { /* Turn multicast off */
+
+ if ((ata1 & 0x0400)) { /* Hmmm, need to reset the functional mask */
+ writew(SRB_SET_FUNC_ADDRESS, streamer_mmio + LAPDINC);
+ writew(STREAMER_CLEAR_RET_CODE, streamer_mmio + LAPDINC);
+ writew(0, streamer_mmio + LAPDINC);
+ writew(ata1 & ~0x0400, streamer_mmio + LAPDINC);
+ writew(ata2, streamer_mmio + LAPD);
+
+ streamer_priv->srb_queued = 2;
+ writel(LISR_SRB_CMD, streamer_mmio + LISR_SUM);
+
+ streamer_priv->streamer_multicast_set = 0;
+ }
+ }
+
+ }
+}
+
+static void streamer_srb_bh(struct device *dev)
+{
+ struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv;
+ __u8 *streamer_mmio = streamer_priv->streamer_mmio;
+ __u16 srb_word;
+
+ writew(streamer_priv->srb, streamer_mmio + LAPA);
+ srb_word = readw(streamer_mmio + LAPDINC) & 0xFF;
+
+ switch (srb_word) {
+
+ /* SRB_MODIFY_RECEIVE_OPTIONS i.e. set_multicast_list options (promiscuous)
+ * At some point we should do something if we get an error, such as
+ * resetting the IFF_PROMISC flag in dev
+ */
+
+ case SRB_MODIFY_RECEIVE_OPTIONS:
+ srb_word = readw(streamer_mmio + LAPDINC) & 0xFF;
+ switch (srb_word) {
+ case 0x01:
+ printk(KERN_WARNING "%s: Unrecognized srb command\n", dev->name);
+ break;
+ case 0x04:
+ printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name);
+ break;
+ default:
+ if (streamer_priv->streamer_message_level)
+ printk(KERN_WARNING "%s: Receive Options Modified to %x,%x\n",
+ dev->name,
+ streamer_priv->streamer_copy_all_options,
+ streamer_priv->streamer_receive_options);
+ break;
+ } /* switch srb[2] */
+ break;
+
+
+ /* SRB_SET_GROUP_ADDRESS - Multicast group setting
+ */
+ case SRB_SET_GROUP_ADDRESS:
+ srb_word = readw(streamer_mmio + LAPDINC) & 0xFF;
+ switch (srb_word) {
+ case 0x00:
+ streamer_priv->streamer_multicast_set = 1;
+ break;
+ case 0x01:
+ printk(KERN_WARNING "%s: Unrecognized srb command \n",dev->name);
+ break;
+ case 0x04:
+ printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name);
+ break;
+ case 0x3c:
+ printk(KERN_WARNING "%s: Group/Functional address indicator bits not set correctly\n", dev->name);
+ break;
+ case 0x3e: /* If we ever implement individual multicast addresses, will need to deal with this */
+ printk(KERN_WARNING "%s: Group address registers full\n", dev->name);
+ break;
+ case 0x55:
+ printk(KERN_INFO "%s: Group Address already set.\n", dev->name);
+ break;
+ default:
+ break;
+ } /* switch srb[2] */
+ break;
+
+
+ /* SRB_RESET_GROUP_ADDRESS - Remove a multicast address from group list
+ */
+ case SRB_RESET_GROUP_ADDRESS:
+ srb_word = readw(streamer_mmio + LAPDINC) & 0xFF;
+ switch (srb_word) {
+ case 0x00:
+ streamer_priv->streamer_multicast_set = 0;
+ break;
+ case 0x01:
+ printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name);
+ break;
+ case 0x04:
+ printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name);
+ break;
+ case 0x39: /* Must deal with this if individual multicast addresses used */
+ printk(KERN_INFO "%s: Group address not found \n", dev->name);
+ break;
+ default:
+ break;
+ } /* switch srb[2] */
+ break;
+
+
+ /* SRB_SET_FUNC_ADDRESS - Called by the set_rx_mode
+ */
+
+ case SRB_SET_FUNC_ADDRESS:
+ srb_word = readw(streamer_mmio + LAPDINC) & 0xFF;
+ switch (srb_word) {
+ case 0x00:
+ if (streamer_priv->streamer_message_level)
+ printk(KERN_INFO "%s: Functional Address Mask Set \n", dev->name);
+ break;
+ case 0x01:
+ printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name);
+ break;
+ case 0x04:
+ printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name);
+ break;
+ default:
+ break;
+ } /* switch srb[2] */
+ break;
+
+ /* SRB_READ_LOG - Read and reset the adapter error counters
+ */
+
+ case SRB_READ_LOG:
+ srb_word = readw(streamer_mmio + LAPDINC) & 0xFF;
+ switch (srb_word) {
+ case 0x00:
+ {
+ int i;
+ if (streamer_priv->streamer_message_level)
+ printk(KERN_INFO "%s: Read Log command complete\n", dev->name);
+ printk("Read Log statistics: ");
+ writew(streamer_priv->srb + 6,
+ streamer_mmio + LAPA);
+ for (i = 0; i < 5; i++) {
+ printk("%x:", ntohs(readw(streamer_mmio + LAPDINC)));
+ }
+ printk("\n");
+ }
+ break;
+ case 0x01:
+ printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name);
+ break;
+ case 0x04:
+ printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name);
+ break;
+
+ } /* switch srb[2] */
+ break;
+
+ /* SRB_READ_SR_COUNTERS - Read and reset the source routing bridge related counters */
+
+ case SRB_READ_SR_COUNTERS:
+ srb_word = readw(streamer_mmio + LAPDINC) & 0xFF;
+ switch (srb_word) {
+ case 0x00:
+ if (streamer_priv->streamer_message_level)
+ printk(KERN_INFO "%s: Read Source Routing Counters issued\n", dev->name);
+ break;
+ case 0x01:
+ printk(KERN_WARNING "%s: Unrecognized srb command \n", dev->name);
+ break;
+ case 0x04:
+ printk(KERN_WARNING "%s: Adapter must be open for this operation, doh!!\n", dev->name);
+ break;
+ default:
+ break;
+ } /* switch srb[2] */
+ break;
+
+ default:
+ printk(KERN_WARNING "%s: Unrecognized srb bh return value.\n", dev->name);
+ break;
+ } /* switch srb[0] */
+}
+
+static struct net_device_stats *streamer_get_stats(struct device *dev)
+{
+ struct streamer_private *streamer_priv;
+ streamer_priv = (struct streamer_private *) dev->priv;
+ return (struct net_device_stats *) &streamer_priv->streamer_stats;
+}
+
+static int streamer_set_mac_address(struct device *dev, void *addr)
+{
+ struct sockaddr *saddr = addr;
+ struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv;
+
+ if (dev->start) {
+ printk(KERN_WARNING "%s: Cannot set mac/laa address while card is open\n", dev->name);
+ return -EIO;
+ }
+
+ memcpy(streamer_priv->streamer_laa, saddr->sa_data, dev->addr_len);
+
+ if (streamer_priv->streamer_message_level) {
+ printk(KERN_INFO "%s: MAC/LAA Set to = %x.%x.%x.%x.%x.%x\n",
+ dev->name, streamer_priv->streamer_laa[0],
+ streamer_priv->streamer_laa[1],
+ streamer_priv->streamer_laa[2],
+ streamer_priv->streamer_laa[3],
+ streamer_priv->streamer_laa[4],
+ streamer_priv->streamer_laa[5]);
+ }
+ return 0;
+}
+
+static void streamer_arb_cmd(struct device *dev)
+{
+ struct streamer_private *streamer_priv =
+ (struct streamer_private *) dev->priv;
+ __u8 *streamer_mmio = streamer_priv->streamer_mmio;
+ __u8 header_len;
+ __u16 frame_len, buffer_len;
+ struct sk_buff *mac_frame;
+ __u8 frame_data[256];
+ __u16 buff_off;
+ __u16 lan_status = 0, lan_status_diff; /* Initialize to stop compiler warning */
+ __u8 fdx_prot_error;
+ __u16 next_ptr;
+ __u16 arb_word;
+
+#if STREAMER_NETWORK_MONITOR
+ struct trh_hdr *mac_hdr;
+#endif
+
+ writew(streamer_priv->arb, streamer_mmio + LAPA);
+ arb_word = readw(streamer_mmio + LAPD) & 0xFF;
+
+ if (arb_word == ARB_RECEIVE_DATA) { /* Receive.data, MAC frames */
+ writew(streamer_priv->arb + 6, streamer_mmio + LAPA);
+ streamer_priv->mac_rx_buffer = buff_off = ntohs(readw(streamer_mmio + LAPDINC));
+ header_len = readw(streamer_mmio + LAPDINC) & 0xff; /* 802.5 Token-Ring Header Length */
+ frame_len = ntohs(readw(streamer_mmio + LAPDINC));
+
+#if STREAMER_DEBUG
+ {
+ int i;
+ __u16 next;
+ __u8 status;
+ __u16 len;
+
+ writew(ntohs(buff_off), streamer_mmio + LAPA); /*setup window to frame data */
+ next = ntohs(readw(streamer_mmio + LAPDINC));
+ status =
+ ntohs(readw(streamer_mmio + LAPDINC)) & 0xff;
+ len = ntohs(readw(streamer_mmio + LAPDINC));
+
+ /* print out 1st 14 bytes of frame data */
+ for (i = 0; i < 7; i++) {
+ printk("Loc %d = %04x\n", i,
+ ntohs(readw
+ (streamer_mmio + LAPDINC)));
+ }
+
+ printk("next %04x, fs %02x, len %04x \n", next,
+ status, len);
+ }
+#endif
+ mac_frame = dev_alloc_skb(frame_len);
+
+ /* Walk the buffer chain, creating the frame */
+
+ do {
+ int i;
+ __u16 rx_word;
+
+ writew(ntohs(buff_off), streamer_mmio + LAPA); /* setup window to frame data */
+ next_ptr = ntohs(readw(streamer_mmio + LAPDINC));
+ readw(streamer_mmio + LAPDINC); /* read thru status word */
+ buffer_len = ntohs(readw(streamer_mmio + LAPDINC));
+
+ if (buffer_len > 256)
+ break;
+
+ i = 0;
+ while (i < buffer_len) {
+ rx_word = readw(streamer_mmio + LAPDINC);
+ frame_data[i] = rx_word & 0xff;
+ frame_data[i + 1] = (rx_word >> 8) & 0xff;
+ i += 2;
+ }
+
+ memcpy_fromio(skb_put(mac_frame, buffer_len),
+ frame_data, buffer_len);
+ } while (next_ptr && (buff_off = next_ptr));
+
+#if STREAMER_NETWORK_MONITOR
+ printk(KERN_WARNING "%s: Received MAC Frame, details: \n",
+ dev->name);
+ mac_hdr = (struct trh_hdr *) mac_frame->data;
+ printk(KERN_WARNING
+ "%s: MAC Frame Dest. Addr: %02x:%02x:%02x:%02x:%02x:%02x \n",
+ dev->name, mac_hdr->daddr[0], mac_hdr->daddr[1],
+ mac_hdr->daddr[2], mac_hdr->daddr[3],
+ mac_hdr->daddr[4], mac_hdr->daddr[5]);
+ printk(KERN_WARNING
+ "%s: MAC Frame Srce. Addr: %02x:%02x:%02x:%02x:%02x:%02x \n",
+ dev->name, mac_hdr->saddr[0], mac_hdr->saddr[1],
+ mac_hdr->saddr[2], mac_hdr->saddr[3],
+ mac_hdr->saddr[4], mac_hdr->saddr[5]);
+#endif
+ mac_frame->dev = dev;
+ mac_frame->protocol = tr_type_trans(mac_frame, dev);
+ netif_rx(mac_frame);
+
+ /* Now tell the card we have dealt with the received frame */
+
+ /* Set LISR Bit 1 */
+ writel(LISR_ARB_FREE, streamer_priv->streamer_mmio + LISR_SUM);
+
+ /* Is the ASB free ? */
+
+ if (!(readl(streamer_priv->streamer_mmio + SISR) & SISR_ASB_FREE))
+ {
+ streamer_priv->asb_queued = 1;
+ writel(LISR_ASB_FREE_REQ, streamer_priv->streamer_mmio + LISR_SUM);
+ return;
+ /* Drop out and wait for the bottom half to be run */
+ }
+
+
+ writew(streamer_priv->asb, streamer_mmio + LAPA);
+ writew(ASB_RECEIVE_DATA, streamer_mmio + LAPDINC); /* Receive data */
+ writew(STREAMER_CLEAR_RET_CODE, streamer_mmio + LAPDINC); /* Necessary ?? */
+ writew(0, streamer_mmio + LAPDINC);
+ writew(ntohs(streamer_priv->mac_rx_buffer), streamer_mmio + LAPD);
+
+ writel(LISR_ASB_REPLY | LISR_ASB_FREE_REQ, streamer_priv->streamer_mmio + LISR_SUM);
+
+ streamer_priv->asb_queued = 2;
+ return;
+
+ } else if (arb_word == ARB_LAN_CHANGE_STATUS) { /* Lan.change.status */
+ writew(streamer_priv->arb + 6, streamer_mmio + LAPA);
+ lan_status = ntohs(readw(streamer_mmio + LAPDINC));
+ fdx_prot_error = readw(streamer_mmio + LAPD) & 0xFF;
+
+ /* Issue ARB Free */
+ writew(LISR_ARB_FREE, streamer_priv->streamer_mmio + LISR_SUM);
+
+ lan_status_diff = streamer_priv->streamer_lan_status ^ lan_status;
+
+ if (lan_status_diff & (LSC_LWF | LSC_ARW | LSC_FPE | LSC_RR))
+ {
+ if (lan_status_diff & LSC_LWF)
+ printk(KERN_WARNING "%s: Short circuit detected on the lobe\n", dev->name);
+ if (lan_status_diff & LSC_ARW)
+ printk(KERN_WARNING "%s: Auto removal error\n", dev->name);
+ if (lan_status_diff & LSC_FPE)
+ printk(KERN_WARNING "%s: FDX Protocol Error\n", dev->name);
+ if (lan_status_diff & LSC_RR)
+ printk(KERN_WARNING "%s: Force remove MAC frame received\n", dev->name);
+
+ /* Adapter has been closed by the hardware */
+
+ /* reset tx/rx fifo's and busmaster logic */
+
+ /* @TBD. no llc reset on autostreamer writel(readl(streamer_mmio+BCTL)|(3<<13),streamer_mmio+BCTL);
+ udelay(1);
+ writel(readl(streamer_mmio+BCTL)&~(3<<13),streamer_mmio+BCTL); */
+ dev->tbusy = 1;
+ dev->interrupt = 1;
+ dev->start = 0;
+ free_irq(dev->irq, dev);
+
+ printk(KERN_WARNING "%s: Adapter has been closed \n", dev->name);
+
+ }
+ /* If serious error */
+ if (streamer_priv->streamer_message_level) {
+ if (lan_status_diff & LSC_SIG_LOSS)
+ printk(KERN_WARNING "%s: No receive signal detected \n", dev->name);
+ if (lan_status_diff & LSC_HARD_ERR)
+ printk(KERN_INFO "%s: Beaconing \n", dev->name);
+ if (lan_status_diff & LSC_SOFT_ERR)
+ printk(KERN_WARNING "%s: Adapter transmitted Soft Error Report Mac Frame \n", dev->name);
+ if (lan_status_diff & LSC_TRAN_BCN)
+ printk(KERN_INFO "%s: We are tranmitting the beacon, aaah\n", dev->name);
+ if (lan_status_diff & LSC_SS)
+ printk(KERN_INFO "%s: Single Station on the ring \n", dev->name);
+ if (lan_status_diff & LSC_RING_REC)
+ printk(KERN_INFO "%s: Ring recovery ongoing\n", dev->name);
+ if (lan_status_diff & LSC_FDX_MODE)
+ printk(KERN_INFO "%s: Operating in FDX mode\n", dev->name);
+ }
+
+ if (lan_status_diff & LSC_CO) {
+ if (streamer_priv->streamer_message_level)
+ printk(KERN_INFO "%s: Counter Overflow \n", dev->name);
+
+ /* Issue READ.LOG command */
+
+ writew(streamer_priv->srb, streamer_mmio + LAPA);
+ writew(SRB_READ_LOG, streamer_mmio + LAPDINC);
+ writew(STREAMER_CLEAR_RET_CODE, streamer_mmio + LAPDINC);
+ writew(0, streamer_mmio + LAPDINC);
+ streamer_priv->srb_queued = 2; /* Can't sleep, use srb_bh */
+
+ writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM);
+ }
+
+ if (lan_status_diff & LSC_SR_CO) {
+ if (streamer_priv->streamer_message_level)
+ printk(KERN_INFO "%s: Source routing counters overflow\n", dev->name);
+
+ /* Issue a READ.SR.COUNTERS */
+ writew(streamer_priv->srb, streamer_mmio + LAPA);
+ writew(SRB_READ_SR_COUNTERS,
+ streamer_mmio + LAPDINC);
+ writew(STREAMER_CLEAR_RET_CODE,
+ streamer_mmio + LAPDINC);
+ streamer_priv->srb_queued = 2; /* Can't sleep, use srb_bh */
+ writew(LISR_SRB_CMD, streamer_mmio + LISR_SUM);
+
+ }
+ streamer_priv->streamer_lan_status = lan_status;
+ } /* Lan.change.status */
+ else
+ printk(KERN_WARNING "%s: Unknown arb command \n", dev->name);
+}
+
+static void streamer_asb_bh(struct device *dev)
+{
+ struct streamer_private *streamer_priv =
+ (struct streamer_private *) dev->priv;
+ __u8 *streamer_mmio = streamer_priv->streamer_mmio;
+
+ if (streamer_priv->asb_queued == 1)
+ {
+ /* Dropped through the first time */
+
+ writew(streamer_priv->asb, streamer_mmio + LAPA);
+ writew(ASB_RECEIVE_DATA, streamer_mmio + LAPDINC); /* Receive data */
+ writew(STREAMER_CLEAR_RET_CODE, streamer_mmio + LAPDINC); /* Necessary ?? */
+ writew(0, streamer_mmio + LAPDINC);
+ writew(ntohs(streamer_priv->mac_rx_buffer), streamer_mmio + LAPD);
+
+ writel(LISR_ASB_REPLY | LISR_ASB_FREE_REQ, streamer_priv->streamer_mmio + LISR_SUM);
+ streamer_priv->asb_queued = 2;
+
+ return;
+ }
+
+ if (streamer_priv->asb_queued == 2) {
+ __u8 rc;
+ writew(streamer_priv->asb + 2, streamer_mmio + LAPA);
+ rc = readw(streamer_mmio + LAPD) & 0xff;
+ switch (rc) {
+ case 0x01:
+ printk(KERN_WARNING "%s: Unrecognized command code \n", dev->name);
+ break;
+ case 0x26:
+ printk(KERN_WARNING "%s: Unrecognized buffer address \n", dev->name);
+ break;
+ case 0xFF:
+ /* Valid response, everything should be ok again */
+ break;
+ default:
+ printk(KERN_WARNING "%s: Invalid return code in asb\n", dev->name);
+ break;
+ }
+ }
+ streamer_priv->asb_queued = 0;
+}
+
+static int streamer_change_mtu(struct device *dev, int mtu)
+{
+ struct streamer_private *streamer_priv =
+ (struct streamer_private *) dev->priv;
+ __u16 max_mtu;
+
+ if (streamer_priv->streamer_ring_speed == 4)
+ max_mtu = 4500;
+ else
+ max_mtu = 18000;
+
+ if (mtu > max_mtu)
+ return -EINVAL;
+ if (mtu < 100)
+ return -EINVAL;
+
+ dev->mtu = mtu;
+ streamer_priv->pkt_buf_sz = mtu + TR_HLEN;
+
+ return 0;
+}
+
+#if STREAMER_NETWORK_MONITOR
+#ifdef CONFIG_PROC_FS
+static int streamer_proc_info(char *buffer, char **start, off_t offset,
+ int length, int *eof, void *data)
+{
+ struct pci_dev *pci_device = NULL;
+ int len = 0;
+ off_t begin = 0;
+ off_t pos = 0;
+ int size;
+
+ struct device *dev;
+
+
+ size = sprintf(buffer, "IBM LanStreamer/MPC Chipset Token Ring Adapters\n");
+
+ pos += size;
+ len += size;
+
+ while ((pci_device = pci_find_device(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_TR, pci_device)))
+ {
+
+ for (dev = dev_base; dev != NULL; dev = dev->next)
+ {
+ if (dev->base_addr == (pci_device->base_address[0] & (~3)))
+ { /* Yep, a Streamer device */
+ size = sprintf_info(buffer + len, dev);
+ len += size;
+ pos = begin + len;
+
+ if (pos < offset) {
+ len = 0;
+ begin = pos;
+ }
+ if (pos > offset + length)
+ break;
+ } /* if */
+ } /* for */
+ } /* While */
+
+ *start = buffer + (offset - begin); /* Start of wanted data */
+ len -= (offset - begin); /* Start slop */
+ if (len > length)
+ len = length; /* Ending slop */
+ return len;
+}
+
+static int sprintf_info(char *buffer, struct device *dev)
+{
+ struct streamer_private *streamer_priv =
+ (struct streamer_private *) dev->priv;
+ __u8 *streamer_mmio = streamer_priv->streamer_mmio;
+ struct streamer_adapter_addr_table sat;
+ struct streamer_parameters_table spt;
+ int size = 0;
+ int i;
+
+ writew(streamer_priv->streamer_addr_table_addr, streamer_mmio + LAPA);
+ for (i = 0; i < 14; i += 2) {
+ __u16 io_word;
+ __u8 *datap = (__u8 *) & sat;
+ io_word = readw(streamer_mmio + LAPDINC);
+ datap[size] = io_word & 0xff;
+ datap[size + 1] = (io_word >> 8) & 0xff;
+ }
+ writew(streamer_priv->streamer_parms_addr, streamer_mmio + LAPA);
+ for (i = 0; i < 68; i += 2) {
+ __u16 io_word;
+ __u8 *datap = (__u8 *) & spt;
+ io_word = readw(streamer_mmio + LAPDINC);
+ datap[size] = io_word & 0xff;
+ datap[size + 1] = (io_word >> 8) & 0xff;
+ }
+
+
+ size = sprintf(buffer, "\n%6s: Adapter Address : Node Address : Functional Addr\n", dev->name);
+
+ size += sprintf(buffer + size,
+ "%6s: %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x\n",
+ dev->name, dev->dev_addr[0], dev->dev_addr[1],
+ dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4],
+ dev->dev_addr[5], sat.node_addr[0], sat.node_addr[1],
+ sat.node_addr[2], sat.node_addr[3], sat.node_addr[4],
+ sat.node_addr[5], sat.func_addr[0], sat.func_addr[1],
+ sat.func_addr[2], sat.func_addr[3]);
+
+ size += sprintf(buffer + size, "\n%6s: Token Ring Parameters Table:\n", dev->name);
+
+ size += sprintf(buffer + size, "%6s: Physical Addr : Up Node Address : Poll Address : AccPri : Auth Src : Att Code :\n", dev->name);
+
+ size += sprintf(buffer + size,
+ "%6s: %02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x:%02x:%02x : %04x : %04x : %04x :\n",
+ dev->name, spt.phys_addr[0], spt.phys_addr[1],
+ spt.phys_addr[2], spt.phys_addr[3],
+ spt.up_node_addr[0], spt.up_node_addr[1],
+ spt.up_node_addr[2], spt.up_node_addr[3],
+ spt.up_node_addr[4], spt.up_node_addr[4],
+ spt.poll_addr[0], spt.poll_addr[1], spt.poll_addr[2],
+ spt.poll_addr[3], spt.poll_addr[4], spt.poll_addr[5],
+ ntohs(spt.acc_priority), ntohs(spt.auth_source_class),
+ ntohs(spt.att_code));
+
+ size += sprintf(buffer + size, "%6s: Source Address : Bcn T : Maj. V : Lan St : Lcl Rg : Mon Err : Frame Correl : \n", dev->name);
+
+ size += sprintf(buffer + size,
+ "%6s: %02x:%02x:%02x:%02x:%02x:%02x : %04x : %04x : %04x : %04x : %04x : %04x : \n",
+ dev->name, spt.source_addr[0], spt.source_addr[1],
+ spt.source_addr[2], spt.source_addr[3],
+ spt.source_addr[4], spt.source_addr[5],
+ ntohs(spt.beacon_type), ntohs(spt.major_vector),
+ ntohs(spt.lan_status), ntohs(spt.local_ring),
+ ntohs(spt.mon_error), ntohs(spt.frame_correl));
+
+ size += sprintf(buffer + size, "%6s: Beacon Details : Tx : Rx : NAUN Node Address : NAUN Node Phys : \n",
+ dev->name);
+
+ size += sprintf(buffer + size,
+ "%6s: : %02x : %02x : %02x:%02x:%02x:%02x:%02x:%02x : %02x:%02x:%02x:%02x : \n",
+ dev->name, ntohs(spt.beacon_transmit),
+ ntohs(spt.beacon_receive), spt.beacon_naun[0],
+ spt.beacon_naun[1], spt.beacon_naun[2],
+ spt.beacon_naun[3], spt.beacon_naun[4],
+ spt.beacon_naun[5], spt.beacon_phys[0],
+ spt.beacon_phys[1], spt.beacon_phys[2],
+ spt.beacon_phys[3]);
+ return size;
+}
+#endif
+#endif
+
+#ifdef MODULE
+
+static struct device *dev_streamer[STREAMER_MAX_ADAPTERS];
+
+int init_module(void)
+{
+ int i;
+
+#if STREAMER_NETWORK_MONITOR
+#ifdef CONFIG_PROC_FS
+ struct proc_dir_entry *ent;
+
+ ent = create_proc_entry("net/streamer_tr", 0, 0);
+ ent->read_proc = &streamer_proc_info;
+#endif
+#endif
+ for (i = 0; (i < STREAMER_MAX_ADAPTERS); i++)
+ {
+ dev_streamer[i] = NULL;
+ dev_streamer[i] = init_trdev(dev_streamer[i], 0);
+ if (dev_streamer[i] == NULL)
+ return -ENOMEM;
+
+ dev_streamer[i]->init = &streamer_probe;
+
+ if (register_trdev(dev_streamer[i]) != 0) {
+ kfree_s(dev_streamer[i], sizeof(struct device));
+ dev_streamer[i] = NULL;
+ if (i == 0)
+ {
+ printk(KERN_INFO "Streamer: No IBM LanStreamer PCI Token Ring cards found in system.\n");
+ return -EIO;
+ } else {
+ printk(KERN_INFO "Streamer: %d IBM LanStreamer PCI Token Ring card(s) found in system.\n", i);
+ return 0;
+ }
+ }
+ }
+
+ return 0;
+}
+
+void cleanup_module(void)
+{
+ int i;
+
+ for (i = 0; i < STREAMER_MAX_ADAPTERS; i++)
+ if (dev_streamer[i]) {
+ unregister_trdev(dev_streamer[i]);
+ release_region(dev_streamer[i]->base_addr, STREAMER_IO_SPACE);
+ kfree_s(dev_streamer[i]->priv, sizeof(struct streamer_private));
+ kfree_s(dev_streamer[i], sizeof(struct device));
+ dev_streamer[i] = NULL;
+ }
+#if STREAMER_NETWORK_MONITOR
+#ifdef CONFIG_PROC_FS
+ remove_proc_entry("net/streamer_tr", NULL);
+#endif
+#endif
+}
+#endif /* MODULE */
--- /dev/null
+/*
+ * lanstreamer.h -- driver for the IBM Auto LANStreamer PCI Adapter
+ *
+ * Written By: Mike Sullivan, IBM Corporation
+ *
+ * Copyright (C) 1999 IBM Corporation
+ *
+ * Linux driver for IBM PCI tokenring cards based on the LanStreamer MPC
+ * chipset.
+ *
+ * This driver is based on the olympic driver for IBM PCI TokenRing cards (Pit/Pit-Phy/Olympic
+ * chipsets) written by:
+ * 1999 Peter De Schrijver All Rights Reserved
+ * 1999 Mike Phillips (phillim@amtrak.com)
+ *
+ * Base Driver Skeleton:
+ * Written 1993-94 by Donald Becker.
+ *
+ * Copyright 1993 United States Government as represented by the
+ * Director, National Security Agency.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+ *
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ *
+ * 12/10/99 - Alpha Release 0.1.0
+ * First release to the public
+ *
+ */
+
+#define BCTL 0x60
+#define BCTL_SOFTRESET (1<<15)
+
+#define GPR 0x4a
+#define GPR_AUTOSENSE (1<<2)
+#define GPR_16MBPS (1<<3)
+
+#define LISR 0x10
+#define LISR_SUM 0x12
+#define LISR_RUM 0x14
+
+#define LISR_LIE (1<<15)
+#define LISR_SLIM (1<<13)
+#define LISR_SLI (1<<12)
+#define LISR_BPEI (1<<9)
+#define LISR_BPE (1<<8)
+#define LISR_SRB_CMD (1<<5)
+#define LISR_ASB_REPLY (1<<4)
+#define LISR_ASB_FREE_REQ (1<<2)
+#define LISR_ARB_FREE (1<<1)
+#define LISR_TRB_FRAME (1<<0)
+
+#define SISR 0x16
+#define SISR_SUM 0x18
+#define SISR_RUM 0x1A
+#define SISR_MASK 0x54
+#define SISR_MASK_SUM 0x56
+#define SISR_MASK_RUM 0x58
+
+#define SISR_MI (1<<15)
+#define SISR_TIMER (1<<11)
+#define SISR_LAP_PAR_ERR (1<<10)
+#define SISR_LAP_ACC_ERR (1<<9)
+#define SISR_PAR_ERR (1<<8)
+#define SISR_ADAPTER_CHECK (1<<6)
+#define SISR_SRB_REPLY (1<<5)
+#define SISR_ASB_FREE (1<<4)
+#define SISR_ARB_CMD (1<<3)
+#define SISR_TRB_REPLY (1<<2)
+
+#define MISR_RUM 0x5A
+#define MISR_MASK 0x5C
+#define MISR_MASK_RUM 0x5E
+
+#define MISR_TX2_IDLE (1<<15)
+#define MISR_TX2_NO_STATUS (1<<14)
+#define MISR_TX2_HALT (1<<13)
+#define MISR_TX2_EOF (1<<12)
+#define MISR_TX1_IDLE (1<<11)
+#define MISR_TX1_NO_STATUS (1<<10)
+#define MISR_TX1_HALT (1<<9)
+#define MISR_TX1_EOF (1<<8)
+#define MISR_RX_NOBUF (1<<5)
+#define MISR_RX_EOB (1<<4)
+#define MISR_RX_NO_STATUS (1<<2)
+#define MISR_RX_HALT (1<<1)
+#define MISR_RX_EOF (1<<0)
+
+#define LAPA 0x62
+#define LAPE 0x64
+#define LAPD 0x66
+#define LAPDINC 0x68
+#define LAPWWO 0x6A
+#define LAPWWC 0x6C
+#define LAPCTL 0x6E
+
+#define TIMER 0x4E4
+
+#define BMCTL_SUM 0x50
+#define BMCTL_RUM 0x52
+#define BMCTL_TX1_DIS (1<<14)
+#define BMCTL_TX2_DIS (1<<10)
+#define BMCTL_RX_DIS (1<<6)
+
+#define RXLBDA 0x90
+#define RXBDA 0x94
+#define RXSTAT 0x98
+#define RXDBA 0x9C
+
+#define TX1LFDA 0xA0
+#define TX1FDA 0xA4
+#define TX1STAT 0xA8
+#define TX1DBA 0xAC
+#define TX2LFDA 0xB0
+#define TX2FDA 0xB4
+#define TX2STAT 0xB8
+#define TX2DBA 0xBC
+
+#define STREAMER_IO_SPACE 256
+
+#define SRB_COMMAND_SIZE 50
+
+#define STREAMER_MAX_ADAPTERS 8 /* 0x08 __MODULE_STRING can't hand 0xnn */
+
+/* Defines for LAN STATUS CHANGE reports */
+#define LSC_SIG_LOSS 0x8000
+#define LSC_HARD_ERR 0x4000
+#define LSC_SOFT_ERR 0x2000
+#define LSC_TRAN_BCN 0x1000
+#define LSC_LWF 0x0800
+#define LSC_ARW 0x0400
+#define LSC_FPE 0x0200
+#define LSC_RR 0x0100
+#define LSC_CO 0x0080
+#define LSC_SS 0x0040
+#define LSC_RING_REC 0x0020
+#define LSC_SR_CO 0x0010
+#define LSC_FDX_MODE 0x0004
+
+/* Defines for OPEN ADAPTER command */
+
+#define OPEN_ADAPTER_EXT_WRAP (1<<15)
+#define OPEN_ADAPTER_DIS_HARDEE (1<<14)
+#define OPEN_ADAPTER_DIS_SOFTERR (1<<13)
+#define OPEN_ADAPTER_PASS_ADC_MAC (1<<12)
+#define OPEN_ADAPTER_PASS_ATT_MAC (1<<11)
+#define OPEN_ADAPTER_ENABLE_EC (1<<10)
+#define OPEN_ADAPTER_CONTENDER (1<<8)
+#define OPEN_ADAPTER_PASS_BEACON (1<<7)
+#define OPEN_ADAPTER_ENABLE_FDX (1<<6)
+#define OPEN_ADAPTER_ENABLE_RPL (1<<5)
+#define OPEN_ADAPTER_INHIBIT_ETR (1<<4)
+#define OPEN_ADAPTER_INTERNAL_WRAP (1<<3)
+
+
+/* Defines for SRB Commands */
+#define SRB_CLOSE_ADAPTER 0x04
+#define SRB_CONFIGURE_BRIDGE 0x0c
+#define SRB_CONFIGURE_HP_CHANNEL 0x13
+#define SRB_MODIFY_BRIDGE_PARMS 0x15
+#define SRB_MODIFY_OPEN_OPTIONS 0x01
+#define SRB_MODIFY_RECEIVE_OPTIONS 0x17
+#define SRB_NO_OPERATION 0x00
+#define SRB_OPEN_ADAPTER 0x03
+#define SRB_READ_LOG 0x08
+#define SRB_READ_SR_COUNTERS 0x16
+#define SRB_RESET_GROUP_ADDRESS 0x02
+#define SRB_RESET_TARGET_SEGMETN 0x14
+#define SRB_SAVE_CONFIGURATION 0x1b
+#define SRB_SET_BRIDGE_PARMS 0x09
+#define SRB_SET_FUNC_ADDRESS 0x07
+#define SRB_SET_GROUP_ADDRESS 0x06
+#define SRB_SET_TARGET_SEGMENT 0x05
+
+/* Clear return code */
+#define STREAMER_CLEAR_RET_CODE 0xfe
+
+/* ARB Commands */
+#define ARB_RECEIVE_DATA 0x81
+#define ARB_LAN_CHANGE_STATUS 0x84
+
+/* ASB Response commands */
+#define ASB_RECEIVE_DATA 0x81
+
+
+/* Streamer defaults for buffers */
+
+#define STREAMER_RX_RING_SIZE 16 /* should be a power of 2 */
+#define STREAMER_TX_RING_SIZE 8 /* should be a power of 2 */
+
+#define PKT_BUF_SZ 4096 /* Default packet size */
+
+/* Streamer data structures */
+
+struct streamer_tx_desc {
+ __u32 forward;
+ __u32 status;
+ __u32 bufcnt_framelen;
+ __u32 buffer;
+ __u32 buflen;
+ __u32 rsvd1;
+ __u32 rsvd2;
+ __u32 rsvd3;
+};
+
+struct streamer_rx_desc {
+ __u32 forward;
+ __u32 status;
+ __u32 buffer;
+ __u32 framelen_buflen;
+};
+
+struct mac_receive_buffer {
+ __u16 next;
+ __u8 padding;
+ __u8 frame_status;
+ __u16 buffer_length;
+ __u8 frame_data;
+};
+
+struct streamer_private {
+
+ __u16 srb;
+ __u16 trb;
+ __u16 arb;
+ __u16 asb;
+
+ __u8 *streamer_mmio;
+
+ volatile int srb_queued; /* True if an SRB is still posted */
+ struct wait_queue *srb_wait;
+
+ volatile int asb_queued; /* True if an ASB is posted */
+
+ volatile int trb_queued; /* True if a TRB is posted */
+ struct wait_queue *trb_wait;
+
+ struct streamer_rx_desc streamer_rx_ring[STREAMER_RX_RING_SIZE];
+ struct streamer_tx_desc streamer_tx_ring[STREAMER_TX_RING_SIZE];
+ struct sk_buff *tx_ring_skb[STREAMER_TX_RING_SIZE],
+ *rx_ring_skb[STREAMER_RX_RING_SIZE];
+ int tx_ring_free, tx_ring_last_status, rx_ring_last_received,
+ free_tx_ring_entries;
+
+ struct net_device_stats streamer_stats;
+ __u16 streamer_lan_status;
+ __u8 streamer_ring_speed;
+ __u16 pkt_buf_sz;
+ __u8 streamer_receive_options, streamer_copy_all_options,
+ streamer_message_level;
+ __u8 streamer_multicast_set;
+ __u16 streamer_addr_table_addr, streamer_parms_addr;
+ __u16 mac_rx_buffer;
+ __u8 streamer_laa[6];
+};
+
+struct streamer_adapter_addr_table {
+
+ __u8 node_addr[6];
+ __u8 reserved[4];
+ __u8 func_addr[4];
+};
+
+struct streamer_parameters_table {
+
+ __u8 phys_addr[4];
+ __u8 up_node_addr[6];
+ __u8 up_phys_addr[4];
+ __u8 poll_addr[6];
+ __u16 reserved;
+ __u16 acc_priority;
+ __u16 auth_source_class;
+ __u16 att_code;
+ __u8 source_addr[6];
+ __u16 beacon_type;
+ __u16 major_vector;
+ __u16 lan_status;
+ __u16 soft_error_time;
+ __u16 reserved1;
+ __u16 local_ring;
+ __u16 mon_error;
+ __u16 beacon_transmit;
+ __u16 beacon_receive;
+ __u16 frame_correl;
+ __u8 beacon_naun[6];
+ __u32 reserved2;
+ __u8 beacon_phys[4];
+};
static int debug = 0;
+MODULE_PARM(debug,"1i");
+
/*
* Interface down stub
*/
};
/* Globals */
-char *tw_driver_version="0.4.001";
+char *tw_driver_version="1.0.000";
TW_Device_Extension *tw_device_extension_list[TW_MAX_SLOT];
int tw_device_extension_count = 0;
command_packet->status = 0;
command_packet->flags = 0;
+ if ((srb->cmnd[0] == WRITE_6) || (srb->cmnd[0] == WRITE_10)) {
+ if ((srb->cmnd[1] & 0x8) || (srb->cmnd[1] & 0x10))
+ command_packet->flags = 1;
+ }
+
if (srb->cmnd[0] == READ_6 || srb->cmnd[0] == WRITE_6) {
lba = ((u32)srb->cmnd[1] << 16) | ((u32)srb->cmnd[2] << 8) | (u32)srb->cmnd[3];
num_sectors = (u32)srb->cmnd[4];
comment 'SCSI low-level drivers'
if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
- dep_tristate '3Ware Hardware ATA-RAID support (EXPERIMENTAL)' CONFIG_BLK_DEV_3W_XXXX_RAID $CONFIG_SCSI
+ dep_tristate '3ware Hardware ATA-RAID support (EXPERIMENTAL)' CONFIG_BLK_DEV_3W_XXXX_RAID $CONFIG_SCSI
fi
dep_tristate '7000FASST SCSI support' CONFIG_SCSI_7000FASST $CONFIG_SCSI
dep_tristate 'ACARD SCSI support' CONFIG_SCSI_ACARD $CONFIG_SCSI
{"TOSHIBA","CDROM","*", BLIST_ISROM},
{"TOSHIBA","DVD-RAM SD-W1101","*", BLIST_GHOST},
{"TOSHIBA","DVD-RAM SD-W1111","*", BLIST_GHOST},
+{"MegaRAID", "LD", "*", BLIST_FORCELUN},
/*
* Must be at end of list...
*/
/*
* Try pruning the dcache to free up some dquots ...
*/
- printk(KERN_DEBUG "get_empty_dquot: pruning %d\n", count);
+// printk(KERN_DEBUG "get_empty_dquot: pruning %d\n", count);
if (prune_dcache(0, 128))
{
free_inode_memory(count);
Legend: those lines marked with '+' on the beggining of line indicates it
passed all of my tests, and performed perfect in all of them.
-Current status (990202) - UMSDOS 0.85:
+Current status (000123) - UMSDOS 0.85g:
(1) pure MSDOS (no --linux-.--- EMD file):
WRITE:
+ create symlink - works
-- create hardlink - works
+- create hardlink - works for same DIR (see notes)
+ create file - works
+ create special file - works
+ write to file - works
+ rename file (same dir) - works
+ rename file (dif. dir) - works
-- rename hardlink (same dir) -
++ rename hardlink (same dir) - works
- rename hardlink (dif. dir) -
+ rename symlink (same dir) - works
+ rename symlink (dif. dir) - works
+ rename dir (dif. dir) - works
+ delete file - works
+ notify_change (chown,perms) - works
-+ delete hardlink - works
+- delete hardlink - works for same DIR (see notes)
+ mkdir - works
+ rmdir - works
+ umssyncing (many ioctls) - works
void check_inode (struct inode *inode)
{
if (inode) {
- printk (KERN_DEBUG "* inode is %lu (i_count=%d)",
- inode->i_ino, inode->i_count);
+ printk (KERN_DEBUG "* inode is %lu (i_count=%d, pos=%lu)",
+ inode->i_ino, inode->i_count, inode->u.umsdos_i.pos);
check_sb (inode->i_sb, 'i');
- if (inode->i_dentry.next) { /* FIXME: does this work ? */
+ if (!list_empty(&inode->i_dentry)) {
printk (" (has i_dentry)");
} else {
printk (" (NO i_dentry)");
return ret;
}
+/*
+ * looks up REAL DOS filename and returns result dentry
+ *
+ * NOTE: since it is looked via UMSDOS_rlookup, it will not have i_patched,
+ * umsdos_i.pos and other EMD-related stuff ! Moreover, it will destroy them
+ * if such dentry was pre-existant.
+ */
struct dentry *umsdos_covered(struct dentry *parent, char *name, int len)
{
struct dentry *result, *dentry;
if (*path == '/')
path++; /* skip leading '/' */
- if (old_root->d_inode == pseudo_root)
+ if (current->fs->root->d_inode == pseudo_root)
{
*(path-1) = '/';
path -= (UMSDOS_PSDROOT_LEN+1);
filp.f_flags = O_RDONLY;
len = umsdos_file_read_kmem (&filp, path, hlink->d_inode->i_size);
+ if ((len > 0) && (len < PATH_MAX)) path[len] = '\0';
if (len != hlink->d_inode->i_size)
goto out_noread;
#ifdef UMSDOS_DEBUG_VERBOSE
}
Printk (("umsdos_emd_dir_readentry /mn/: ret=%d.\n", ret));
if (entry && ret == 0) {
+ entry->name[entry->name_len]='\0';
Printk (("umsdos_emd_dir_readentry /mn/: returning len=%d,name=%.*s\n",
(int) entry->name_len, (int) entry->name_len, entry->name));
}
void UMSDOS_put_super (struct super_block *sb)
{
Printk ((KERN_DEBUG "UMSDOS_put_super: entering\n"));
- if (saved_root) {
+ if (saved_root && pseudo_root && sb->s_dev == ROOT_DEV) {
shrink_dcache_parent(saved_root);
printk("UMSDOS_put_super: freeing saved root, d_count=%d\n",
saved_root->d_count);
if (!res)
goto out_fail;
- printk (KERN_INFO "UMSDOS 0.85b "
+ printk (KERN_INFO "UMSDOS 0.85g "
"(compatibility level %d.%d, fast msdos)\n",
UMSDOS_VERSION, UMSDOS_RELEASE);
goto out_unlock;
/* make sure it's the same inode! */
ret = -ENOENT;
- if (old->d_inode != old_inode)
- goto out_dput;
+ /*
+ * note: for hardlinks they will be different!
+ * old_inode will contain inode of .LINKxxx file containing data, and
+ * old->d_inode will contain inode of file containing path to .LINKxxx file
+ */
+ if (!(old_info.entry.flags & UMSDOS_HLINK)) {
+ if (old->d_inode != old_inode)
+ goto out_dput;
+ }
new = umsdos_covered(new_dentry->d_parent, new_info.fake.fname,
new_info.fake.len);
*/
Printk ((KERN_DEBUG "umsdos_rlookup_x: patch_dentry_inode %s/%s\n",
dentry->d_parent->d_name.name, dentry->d_name.name));
- umsdos_patch_dentry_inode(dentry, 0);
+/* only patch if needed (because we get called even for lookup
+ (not only rlookup) stuff sometimes, like in umsdos_covered() */
+ if (dentry->d_inode->u.umsdos_i.i_patched == 0)
+ umsdos_patch_dentry_inode(dentry, 0);
}
out:
extern void atomic_clear_mask(unsigned long mask, unsigned long *addr);
extern void atomic_set_mask(unsigned long mask, unsigned long *addr);
-#if 0 /* for now */
-extern __inline__ void atomic_add(atomic_t a, atomic_t *v)
-{
- atomic_t t;
-
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%3\n\
- add %0,%2,%0\n\
- stwcx. %0,0,%3\n\
- bne 1b"
- : "=&r" (t), "=m" (*v)
- : "r" (a), "r" (v)
- : "cc");
-}
-
-extern __inline__ void atomic_sub(atomic_t a, atomic_t *v)
-{
- atomic_t t;
-
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%3\n\
- subf %0,%2,%0\n\
- stwcx. %0,0,%3\n\
- bne 1b"
- : "=&r" (t), "=m" (*v)
- : "r" (a), "r" (v)
- : "cc");
-}
-
-extern __inline__ int atomic_sub_and_test(atomic_t a, atomic_t *v)
-{
- atomic_t t;
-
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%3\n\
- subf %0,%2,%0\n\
- stwcx. %0,0,%3\n\
- bne 1b"
- : "=&r" (t), "=m" (*v)
- : "r" (a), "r" (v)
- : "cc");
-
- return t == 0;
-}
-
-extern __inline__ void atomic_inc(atomic_t *v)
-{
- atomic_t t;
-
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%2\n\
- addic %0,%0,1\n\
- stwcx. %0,0,%2\n\
- bne 1b"
- : "=&r" (t), "=m" (*v)
- : "r" (v)
- : "cc");
-}
-
-extern __inline__ void atomic_dec(atomic_t *v)
-{
- atomic_t t;
-
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%2\n\
- addic %0,%0,-1\n\
- stwcx. %0,0,%2\n\
- bne 1b"
- : "=&r" (t), "=m" (*v)
- : "r" (v)
- : "cc");
-}
-
-extern __inline__ int atomic_dec_and_test(atomic_t *v)
-{
- atomic_t t;
-
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%2\n\
- addic %0,%0,-1\n\
- stwcx. %0,0,%2\n\
- bne 1b"
- : "=&r" (t), "=m" (*v)
- : "r" (v)
- : "cc");
-
- return t == 0;
-}
-#endif /* 0 */
-
#endif /* _ASM_PPC_ATOMIC_H_ */
return lz;
}
-/*
- * These are if'd out here because using : "cc" as a constraint
- * results in errors from gcc. -- Cort
- * Besides, they need to be changed so we have both set_bit
- * and test_and_set_bit, etc.
- */
-#if 0
-extern __inline__ int set_bit(int nr, void * addr)
-{
- unsigned long old, t;
- unsigned long mask = 1 << (nr & 0x1f);
- unsigned long *p = ((unsigned long *)addr) + (nr >> 5);
-
- __asm__ __volatile__(
- "1:lwarx %0,0,%3 \n\t"
- "or %1,%0,%2 \n\t"
- "stwcx. %1,0,%3 \n\t"
- "bne 1b \n\t"
- : "=&r" (old), "=&r" (t) /*, "=m" (*p)*/
- : "r" (mask), "r" (p)
- /*: "cc" */);
-
- return (old & mask) != 0;
-}
-
-extern __inline__ unsigned long clear_bit(unsigned long nr, void *addr)
-{
- unsigned long old, t;
- unsigned long mask = 1 << (nr & 0x1f);
- unsigned long *p = ((unsigned long *)addr) + (nr >> 5);
-
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%3
- andc %1,%0,%2
- stwcx. %1,0,%3
- bne 1b"
- : "=&r" (old), "=&r" (t) /*, "=m" (*p)*/
- : "r" (mask), "r" (p)
- /*: "cc"*/);
-
- return (old & mask) != 0;
-}
-
-extern __inline__ unsigned long change_bit(unsigned long nr, void *addr)
-{
- unsigned long old, t;
- unsigned long mask = 1 << (nr & 0x1f);
- unsigned long *p = ((unsigned long *)addr) + (nr >> 5);
-
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%3
- xor %1,%0,%2
- stwcx. %1,0,%3
- bne 1b"
- : "=&r" (old), "=&r" (t) /*, "=m" (*p)*/
- : "r" (mask), "r" (p)
- /*: "cc"*/);
-
- return (old & mask) != 0;
-}
-#endif
-
extern __inline__ unsigned long test_bit(int nr, __const__ volatile void *addr)
{
__const__ unsigned int *p = (__const__ unsigned int *) addr;
#define ffs(x) generic_ffs(x)
-#if 0
-/* untested, someone with PPC knowledge? */
-/* From Alexander Kjeldaas <astor@guardian.no> */
-extern __inline__ int ffs(int x)
-{
- int result;
- asm ("cntlzw %0,%1" : "=r" (result) : "r" (x));
- return 32 - result; /* IBM backwards ordering of bits */
-}
-#endif
-
/*
* hweightN: returns the hamming weight (i.e. the number
* of bits set) of a N-bit word
#define free_page(addr) free_pages((addr),0)
extern void FASTCALL(free_pages(unsigned long addr, unsigned long order));
-extern void FASTCALL(__free_page(struct page *));
+#define __free_page(page) __free_pages((page),0)
+extern void FASTCALL(__free_pages(struct page *, unsigned long));
extern void show_free_areas(void);
extern unsigned long put_dirty_page(struct task_struct * tsk,unsigned long page,
#define __GFP_DMA 0x80
-#define GFP_BUFFER (__GFP_LOW | __GFP_WAIT)
+#define GFP_BUFFER (__GFP_MED | __GFP_WAIT)
#define GFP_ATOMIC (__GFP_HIGH)
#define GFP_USER (__GFP_LOW | __GFP_WAIT | __GFP_IO)
#define GFP_KERNEL (__GFP_MED | __GFP_WAIT | __GFP_IO)
/* mm fault and swap info: this can arguably be seen as either mm-specific or thread-specific */
unsigned long min_flt, maj_flt, nswap, cmin_flt, cmaj_flt, cnswap;
int swappable:1;
+ int trashing_mem:1;
/* process credentials */
uid_t uid,euid,suid,fsuid;
gid_t gid,egid,sgid,fsgid;
/* Thread group tracking */
u32 parent_exec_id;
u32 self_exec_id;
+
+/* oom handling */
+ int oom_kill_try;
};
/*
/* utime */ {0,0,0,0},0, \
/* per CPU times */ {0, }, {0, }, \
/* flt */ 0,0,0,0,0,0, \
-/* swp */ 0, \
+/* swp */ 0,0, \
/* process credentials */ \
/* uid etc */ 0,0,0,0,0,0,0,0, \
/* suppl grps*/ 0, {0,}, \
/* mm */ &init_mm, \
/* signals */ SPIN_LOCK_UNLOCKED, &init_signals, {{0}}, {{0}}, NULL, &init_task.sigqueue, 0, 0, \
/* exec cts */ 0,0, \
+/* oom */ 0, \
}
union task_union {
/* internal kernel memory management */
EXPORT_SYMBOL(__get_free_pages);
EXPORT_SYMBOL(free_pages);
-EXPORT_SYMBOL(__free_page);
+EXPORT_SYMBOL(__free_pages);
EXPORT_SYMBOL(kmem_find_general_cachep);
EXPORT_SYMBOL(kmem_cache_create);
EXPORT_SYMBOL(kmem_cache_shrink);
O_TARGET := mm.o
O_OBJS := memory.o mmap.o filemap.o mprotect.o mlock.o mremap.o \
- vmalloc.o slab.o oom_kill.o \
+ vmalloc.o slab.o \
swap.o vmscan.o page_io.o page_alloc.o swap_state.o swapfile.o
include $(TOPDIR)/Rules.make
clock = page - mem_map;
}
+ /* We can't free pages unless there's just one user */
+ if (atomic_read(&page->count) != 1)
+ continue;
+
referenced = test_and_clear_bit(PG_referenced, &page->flags);
if (PageLocked(page))
if ((gfp_mask & __GFP_DMA) && !PageDMA(page))
continue;
- /* We can't free pages unless there's just one user */
- if (atomic_read(&page->count) != 1)
- continue;
-
count--;
/*
if ((unsigned long)dest != source_address) {
wait_on_page(page);
memcpy(dest, buf, len);
+ flush_dcache_page(page_address(page));
}
page_cache_release(page);
}
* is done with the page.
*/
dest = (char *) page_address(page) + offset;
- if (dest != buf) /* See comment in update_vm_cache_cond. */
+ if (dest != buf) { /* See comment in update_vm_cache_cond. */
bytes -= copy_from_user(dest, buf, bytes);
+ flush_dcache_page(page_address(page));
+ }
status = -EFAULT;
if (bytes)
status = inode->i_op->updatepage(file, page, offset, bytes, sync);
+++ /dev/null
-/*
- * linux/mm/oom_kill.c
- *
- * Copyright (C) 1998,2000 Rik van Riel
- * Thanks go out to Claus Fischer for some serious inspiration and
- * for goading me into coding this file...
- *
- * The routines in this file are used to kill a process when
- * we're seriously out of memory. This gets called from kswapd()
- * in linux/mm/vmscan.c when we really run out of memory.
- *
- * Since we won't call these routines often (on a well-configured
- * machine) this file will double as a 'coding guide' and a signpost
- * for newbie kernel hackers. It features several pointers to major
- * kernel subsystems and hints as to where to find out what things do.
- */
-
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/stddef.h>
-#include <linux/swap.h>
-#include <linux/swapctl.h>
-#include <linux/timex.h>
-
-/* #define DEBUG */
-#define min(a,b) (((a)<(b))?(a):(b))
-
-/*
- * A rough approximation to the sqrt() function.
- */
-inline int int_sqrt(unsigned int x)
-{
- unsigned int out = x;
- while (x & ~(unsigned int)1) x >>=2, out >>=1;
- if (x) out -= out >> 2;
- return (out ? out : 1);
-}
-
-/*
- * Basically, points = size / (sqrt(CPU_used) * sqrt(sqrt(time_running)))
- * with some bonusses/penalties.
- *
- * We try to chose our `guilty' task in such a way that we free
- * up the maximum amount of memory and lose the minimum amount of
- * done work.
- *
- * The definition of the task_struct, the structure describing the state
- * of each process, can be found in include/linux/sched.h. For
- * capability info, you should read include/linux/capability.h.
- */
-
-inline int badness(struct task_struct *p)
-{
- int points = p->mm->total_vm;
- points /= int_sqrt((p->times.tms_utime + p->times.tms_stime) >> (SHIFT_HZ + 3));
- points /= int_sqrt(int_sqrt((jiffies - p->start_time) >> (SHIFT_HZ + 10)));
-/*
- * Niced processes are probably less important; kernel/sched.c
- * and include/linux/sched.h contain most info on scheduling.
- */
- if (p->priority < DEF_PRIORITY)
- points <<= 1;
-/*
- * p->(e)uid is the process User ID, ID 0 is root, the super user.
- * The super user usually only runs (important) system services
- * and properly checked programs which we don't want to kill.
- */
- if (p->uid == 0 || p->euid == 0 || cap_t(p->cap_effective) & CAP_TO_MASK(CAP_SYS_ADMIN))
- points >>= 2;
-/*
- * We don't want to kill a process with direct hardware access.
- * Not only could this mess up the hardware, but these processes
- * are usually fairly important too.
- */
- if (cap_t(p->cap_effective) & CAP_TO_MASK(CAP_SYS_RAWIO))
- points >>= 1;
-#ifdef DEBUG
- printk(KERN_DEBUG "OOMkill: task %d (%s) got %d points\n",
- p->pid, p->comm, points);
-#endif
- return points;
-}
-
-/*
- * Simple selection loop. We chose the process with the highest
- * number of 'points'. We need the locks to make sure that the
- * list of task structs doesn't change while we look the other way.
- */
-inline struct task_struct * select_bad_process(void)
-{
- int points = 0, maxpoints = 0;
- struct task_struct *p = NULL;
- struct task_struct *chosen = NULL;
-
- read_lock(&tasklist_lock);
- for_each_task(p)
- {
- if (p->pid)
- points = badness(p);
- if (points > maxpoints) {
- chosen = p;
- maxpoints = points;
- }
- }
- read_unlock(&tasklist_lock);
- return chosen;
-}
-
-/*
- * We kill the 'best' process and print a message to userspace.
- * The only things to be careful about are:
- * - don't SIGKILL a process with direct hardware access.
- * - are we killing ourselves?
- * - when we kill someone else, can we sleep and get out of the way?
- */
-void oom_kill(unsigned long gfp_mask)
-{
-
- struct task_struct *p = select_bad_process();
-
- if (p == NULL)
- return;
-
- if (p == current) {
- printk(KERN_ERR "Out of Memory: Killed process %d (%s).",
- p->pid, p->comm);
- } else {
- printk(KERN_ERR "Out of Memory: Killed process %d (%s), "
- "saved process %d (%s).",
- p->pid, p->comm, current->pid, current->comm);
- }
-
- /* This process has hardware access, be more careful */
- if (cap_t(p->cap_effective) & CAP_TO_MASK(CAP_SYS_RAWIO)) {
- force_sig(SIGTERM, p);
- } else {
- force_sig(SIGKILL, p);
- }
-
- /* Get out of the way so that p can die */
- if (p != current && (gfp_mask & __GFP_WAIT) && current->state == TASK_RUNNING) {
- p->counter = 2 * DEF_PRIORITY;
- current->policy |= SCHED_YIELD;
- schedule();
- }
- return;
-}
-
-/*
- * We are called when __get_free_pages() thinks the system may
- * be out of memory. If we really are out of memory, we can do
- * nothing except freeing up memory by killing a process...
- */
-
-int out_of_memory(unsigned long gfp_mask)
-{
- int count = page_cluster;
- int loop = 0;
- int freed = 0;
-
-again:
- if (gfp_mask & __GFP_WAIT) {
- /* Try to free up some memory */
- current->flags |= PF_MEMALLOC;
- do {
- freed += try_to_free_pages(gfp_mask);
- run_task_queue(&tq_disk);
- if (freed && nr_free_pages > freepages.min) {
- current->flags &= ~PF_MEMALLOC;
- return 0;
- }
- } while (--count);
- current->flags &= ~PF_MEMALLOC;
- }
-
- /* Darn, we failed. Now we have to kill something */
- if (!loop)
- oom_kill(gfp_mask);
-
- if (nr_free_pages > freepages.min)
- return 0;
- if (!loop) {
- loop = 1;
- goto again;
- }
- /* Still out of memory, let the caller deal with it */
- return 1;
-}
int nr_swap_pages = 0;
int nr_free_pages = 0;
-int low_on_memory = 0;
-extern struct wait_queue * kswapd_wait;
-extern int out_of_memory(unsigned long);
/*
* Free area management
spin_unlock_irqrestore(&page_alloc_lock, flags);
}
-static inline void __free_pages(struct page *page, unsigned long order)
+void __free_pages(struct page *page, unsigned long order)
{
if (!PageReserved(page) && atomic_dec_and_test(&page->count)) {
if (PageSwapCache(page))
}
}
-void __free_page(struct page *page)
-{
- __free_pages(page, 0);
-}
-
void free_pages(unsigned long addr, unsigned long order)
{
unsigned long map_nr = MAP_NR(addr);
* further thought.
*/
if (!(current->flags & PF_MEMALLOC)) {
-#ifdef SLEEP_MEMORY_DEBUGGING
- if (current->state != TASK_RUNNING && (gfp_mask & __GFP_WAIT)) {
- printk("gfp called by non-running (%ld) task from %p!\n",
- current->state, __builtin_return_address(0));
- /* if we're not running, we can't sleep */
- gfp_mask &= ~__GFP_WAIT;
- }
-#endif
-
- if (low_on_memory) {
- int freed;
- current->flags |= PF_MEMALLOC;
- freed = try_to_free_pages(gfp_mask);
- current->flags &= ~PF_MEMALLOC;
- if (time_after(jiffies, low_on_memory + 60 * HZ))
- out_of_memory(gfp_mask);
- if (freed && nr_free_pages > freepages.low)
- low_on_memory = 0;
+ int freed;
+ extern struct wait_queue * kswapd_wait;
+
+ if (nr_free_pages >= freepages.high)
+ {
+ /* share RO cachelines in fast path */
+ if (current->trashing_mem)
+ current->trashing_mem = 0;
+ goto ok_to_allocate;
}
-
- if (nr_free_pages <= freepages.low) {
- wake_up_interruptible(&kswapd_wait);
- if ((gfp_mask & __GFP_WAIT) && current->state == TASK_RUNNING) {
- schedule();
- /* kswapd couldn't save us */
- if (nr_free_pages <= freepages.low)
- low_on_memory = jiffies;
- }
+ else
+ {
+ if (nr_free_pages < freepages.low)
+ wake_up_interruptible(&kswapd_wait);
+ if (nr_free_pages > freepages.min && !current->trashing_mem)
+ goto ok_to_allocate;
}
- if (nr_free_pages > freepages.min)
- goto ok_to_allocate;
-
- /*
- * out_of_memory() should usually fix the situation.
- * If it does, we can continue like nothing happened.
- */
- if (!out_of_memory(gfp_mask))
- goto ok_to_allocate;
-
- if ((gfp_mask & __GFP_MED) && nr_free_pages > freepages.min / 2)
- goto ok_to_allocate;
+ current->trashing_mem = 1;
+ current->flags |= PF_MEMALLOC;
+ freed = try_to_free_pages(gfp_mask);
+ current->flags &= ~PF_MEMALLOC;
- if (!(gfp_mask & __GFP_HIGH))
+ if (!freed && !(gfp_mask & (__GFP_MED | __GFP_HIGH)))
goto nopage;
}
ok_to_allocate:
#include <linux/init.h>
#include <asm/pgtable.h>
-extern int low_on_memory;
/*
* The swap-out functions return 1 if they successfully
|| ((gfp_mask & __GFP_DMA) && !PageDMA(page_map)))
return 0;
- /*
- * By setting this bit shrink_mmap() will do
- * second-chance page replacement, only do this
- * when we are the only (non-pagecache) user.
- */
- if (atomic_read(&page_map->count) <= 2)
- set_bit(PG_referenced, &page_map->flags);
-
/*
* Is the page already in the swap cache? If so, then
* we can just drop our reference to it without doing
printk ("Starting kswapd v%.*s\n", i, s);
}
-struct wait_queue * kswapd_wait = NULL;
+struct wait_queue * kswapd_wait;
/*
* The background pageout daemon, started as a kernel thread
* the processes needing more memory will wake us
* up on a more timely basis.
*/
+ interruptible_sleep_on(&kswapd_wait);
while (nr_free_pages < freepages.high)
{
- if (!do_try_to_free_pages(GFP_KSWAPD)) {
- /* out of memory? we can't do much */
- low_on_memory = jiffies;
- if (nr_free_pages < freepages.min) {
- run_task_queue(&tq_disk);
- tsk->state = TASK_INTERRUPTIBLE;
- schedule_timeout(HZ);
- } else {
- break;
- }
+ if (do_try_to_free_pages(GFP_KSWAPD))
+ {
+ if (tsk->need_resched)
+ schedule();
+ continue;
}
- if (tsk->need_resched)
- schedule();
+ tsk->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(10*HZ);
}
- run_task_queue(&tq_disk);
- interruptible_sleep_on_timeout(&kswapd_wait, HZ);
}
}
projects / history.git / commitdiff