UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity
OpenCloudOS-Kernel/drivers/net/macmace.c

830 lines
19 KiB
C
Raw Normal View History

Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
* Driver for the Macintosh 68K onboard MACE controller with PSC
* driven DMA. The MACE driver code is derived from mace.c. The
* Mac68k theory of operation is courtesy of the MacBSD wizards.
*
* 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.
*
* Copyright (C) 1996 Paul Mackerras.
* Copyright (C) 1998 Alan Cox <alan@redhat.com>
*
* Modified heavily by Joshua M. Thompson based on Dave Huang's NetBSD driver
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
*
* Copyright (C) 2007 Finn Thain
*
* Converted to DMA API, converted to unified driver model,
* sync'd some routines with mace.c and fixed various bugs.
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/delay.h>
#include <linux/string.h>
#include <linux/crc32.h>
net: use bitrev8 Use bitrev8 for bmac, mace, macmace, macsonic, and skfp drivers. [akpm@osdl.org: use the API, not the array] Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Mirko Lindner <mlindner@syskonnect.de> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-20 05:09:08 +08:00
#include <linux/bitrev.h>
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/macintosh.h>
#include <asm/macints.h>
#include <asm/mac_psc.h>
#include <asm/page.h>
#include "mace.h"
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
static char mac_mace_string[] = "macmace";
static struct platform_device *mac_mace_device;
#define N_TX_BUFF_ORDER 0
#define N_TX_RING (1 << N_TX_BUFF_ORDER)
#define N_RX_BUFF_ORDER 3
#define N_RX_RING (1 << N_RX_BUFF_ORDER)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#define TX_TIMEOUT HZ
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
#define MACE_BUFF_SIZE 0x800
/* Chip rev needs workaround on HW & multicast addr change */
#define BROKEN_ADDRCHG_REV 0x0941
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* The MACE is simply wired down on a Mac68K box */
#define MACE_BASE (void *)(0x50F1C000)
#define MACE_PROM (void *)(0x50F08001)
struct mace_data {
volatile struct mace *mace;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
unsigned char *tx_ring;
dma_addr_t tx_ring_phys;
unsigned char *rx_ring;
dma_addr_t rx_ring_phys;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
int dma_intr;
struct net_device_stats stats;
int rx_slot, rx_tail;
int tx_slot, tx_sloti, tx_count;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
int chipid;
struct device *device;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
};
struct mace_frame {
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
u8 rcvcnt;
u8 pad1;
u8 rcvsts;
u8 pad2;
u8 rntpc;
u8 pad3;
u8 rcvcc;
u8 pad4;
u32 pad5;
u32 pad6;
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
u8 data[1];
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* And frame continues.. */
};
#define PRIV_BYTES sizeof(struct mace_data)
static int mace_open(struct net_device *dev);
static int mace_close(struct net_device *dev);
static int mace_xmit_start(struct sk_buff *skb, struct net_device *dev);
static struct net_device_stats *mace_stats(struct net_device *dev);
static void mace_set_multicast(struct net_device *dev);
static int mace_set_address(struct net_device *dev, void *addr);
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
static void mace_reset(struct net_device *dev);
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 21:55:46 +08:00
static irqreturn_t mace_interrupt(int irq, void *dev_id);
static irqreturn_t mace_dma_intr(int irq, void *dev_id);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static void mace_tx_timeout(struct net_device *dev);
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
static void __mace_set_address(struct net_device *dev, void *addr);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
* Load a receive DMA channel with a base address and ring length
*/
static void mace_load_rxdma_base(struct net_device *dev, int set)
{
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
struct mace_data *mp = netdev_priv(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
psc_write_word(PSC_ENETRD_CMD + set, 0x0100);
psc_write_long(PSC_ENETRD_ADDR + set, (u32) mp->rx_ring_phys);
psc_write_long(PSC_ENETRD_LEN + set, N_RX_RING);
psc_write_word(PSC_ENETRD_CMD + set, 0x9800);
mp->rx_tail = 0;
}
/*
* Reset the receive DMA subsystem
*/
static void mace_rxdma_reset(struct net_device *dev)
{
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
struct mace_data *mp = netdev_priv(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
volatile struct mace *mace = mp->mace;
u8 maccc = mace->maccc;
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mace->maccc = maccc & ~ENRCV;
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
psc_write_word(PSC_ENETRD_CTL, 0x8800);
mace_load_rxdma_base(dev, 0x00);
psc_write_word(PSC_ENETRD_CTL, 0x0400);
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
psc_write_word(PSC_ENETRD_CTL, 0x8800);
mace_load_rxdma_base(dev, 0x10);
psc_write_word(PSC_ENETRD_CTL, 0x0400);
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mace->maccc = maccc;
mp->rx_slot = 0;
psc_write_word(PSC_ENETRD_CMD + PSC_SET0, 0x9800);
psc_write_word(PSC_ENETRD_CMD + PSC_SET1, 0x9800);
}
/*
* Reset the transmit DMA subsystem
*/
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static void mace_txdma_reset(struct net_device *dev)
{
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
struct mace_data *mp = netdev_priv(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
volatile struct mace *mace = mp->mace;
u8 maccc;
psc_write_word(PSC_ENETWR_CTL, 0x8800);
maccc = mace->maccc;
mace->maccc = maccc & ~ENXMT;
mp->tx_slot = mp->tx_sloti = 0;
mp->tx_count = N_TX_RING;
psc_write_word(PSC_ENETWR_CTL, 0x0400);
mace->maccc = maccc;
}
/*
* Disable DMA
*/
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static void mace_dma_off(struct net_device *dev)
{
psc_write_word(PSC_ENETRD_CTL, 0x8800);
psc_write_word(PSC_ENETRD_CTL, 0x1000);
psc_write_word(PSC_ENETRD_CMD + PSC_SET0, 0x1100);
psc_write_word(PSC_ENETRD_CMD + PSC_SET1, 0x1100);
psc_write_word(PSC_ENETWR_CTL, 0x8800);
psc_write_word(PSC_ENETWR_CTL, 0x1000);
psc_write_word(PSC_ENETWR_CMD + PSC_SET0, 0x1100);
psc_write_word(PSC_ENETWR_CMD + PSC_SET1, 0x1100);
}
/*
* Not really much of a probe. The hardware table tells us if this
* model of Macintrash has a MACE (AV macintoshes)
*/
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
static int __devinit mace_probe(struct platform_device *pdev)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
int j;
struct mace_data *mp;
unsigned char *addr;
struct net_device *dev;
unsigned char checksum = 0;
static int found = 0;
int err;
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (found || macintosh_config->ether_type != MAC_ETHER_MACE)
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
return -ENODEV;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
found = 1; /* prevent 'finding' one on every device probe */
dev = alloc_etherdev(PRIV_BYTES);
if (!dev)
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
return -ENOMEM;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
mp = netdev_priv(dev);
mp->device = &pdev->dev;
SET_NETDEV_DEV(dev, &pdev->dev);
SET_MODULE_OWNER(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
dev->base_addr = (u32)MACE_BASE;
mp->mace = (volatile struct mace *) MACE_BASE;
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
dev->irq = IRQ_MAC_MACE;
mp->dma_intr = IRQ_MAC_MACE_DMA;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
mp->chipid = mp->mace->chipid_hi << 8 | mp->mace->chipid_lo;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
* The PROM contains 8 bytes which total 0xFF when XOR'd
* together. Due to the usual peculiar apple brain damage
* the bytes are spaced out in a strange boundary and the
* bits are reversed.
*/
addr = (void *)MACE_PROM;
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
for (j = 0; j < 6; ++j) {
net: use bitrev8 Use bitrev8 for bmac, mace, macmace, macsonic, and skfp drivers. [akpm@osdl.org: use the API, not the array] Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Mirko Lindner <mlindner@syskonnect.de> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-20 05:09:08 +08:00
u8 v = bitrev8(addr[j<<4]);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
checksum ^= v;
dev->dev_addr[j] = v;
}
for (; j < 8; ++j) {
net: use bitrev8 Use bitrev8 for bmac, mace, macmace, macsonic, and skfp drivers. [akpm@osdl.org: use the API, not the array] Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Mirko Lindner <mlindner@syskonnect.de> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-20 05:09:08 +08:00
checksum ^= bitrev8(addr[j<<4]);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (checksum != 0xFF) {
free_netdev(dev);
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
return -ENODEV;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
memset(&mp->stats, 0, sizeof(mp->stats));
dev->open = mace_open;
dev->stop = mace_close;
dev->hard_start_xmit = mace_xmit_start;
dev->tx_timeout = mace_tx_timeout;
dev->watchdog_timeo = TX_TIMEOUT;
dev->get_stats = mace_stats;
dev->set_multicast_list = mace_set_multicast;
dev->set_mac_address = mace_set_address;
printk(KERN_INFO "%s: 68K MACE, hardware address %.2X", dev->name, dev->dev_addr[0]);
for (j = 1 ; j < 6 ; j++) printk(":%.2X", dev->dev_addr[j]);
printk("\n");
err = register_netdev(dev);
if (!err)
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
return 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
free_netdev(dev);
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
return err;
}
/*
* Reset the chip.
*/
static void mace_reset(struct net_device *dev)
{
struct mace_data *mp = netdev_priv(dev);
volatile struct mace *mb = mp->mace;
int i;
/* soft-reset the chip */
i = 200;
while (--i) {
mb->biucc = SWRST;
if (mb->biucc & SWRST) {
udelay(10);
continue;
}
break;
}
if (!i) {
printk(KERN_ERR "macmace: cannot reset chip!\n");
return;
}
mb->maccc = 0; /* turn off tx, rx */
mb->imr = 0xFF; /* disable all intrs for now */
i = mb->ir;
mb->biucc = XMTSP_64;
mb->utr = RTRD;
mb->fifocc = XMTFW_8 | RCVFW_64 | XMTFWU | RCVFWU;
mb->xmtfc = AUTO_PAD_XMIT; /* auto-pad short frames */
mb->rcvfc = 0;
/* load up the hardware address */
__mace_set_address(dev, dev->dev_addr);
/* clear the multicast filter */
if (mp->chipid == BROKEN_ADDRCHG_REV)
mb->iac = LOGADDR;
else {
mb->iac = ADDRCHG | LOGADDR;
while ((mb->iac & ADDRCHG) != 0)
;
}
for (i = 0; i < 8; ++i)
mb->ladrf = 0;
/* done changing address */
if (mp->chipid != BROKEN_ADDRCHG_REV)
mb->iac = 0;
mb->plscc = PORTSEL_AUI;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
/*
* Load the address on a mace controller.
*/
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
static void __mace_set_address(struct net_device *dev, void *addr)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
struct mace_data *mp = netdev_priv(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
volatile struct mace *mb = mp->mace;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
unsigned char *p = addr;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
int i;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
/* load up the hardware address */
if (mp->chipid == BROKEN_ADDRCHG_REV)
mb->iac = PHYADDR;
else {
mb->iac = ADDRCHG | PHYADDR;
while ((mb->iac & ADDRCHG) != 0)
;
}
for (i = 0; i < 6; ++i)
mb->padr = dev->dev_addr[i] = p[i];
if (mp->chipid != BROKEN_ADDRCHG_REV)
mb->iac = 0;
}
static int mace_set_address(struct net_device *dev, void *addr)
{
struct mace_data *mp = netdev_priv(dev);
volatile struct mace *mb = mp->mace;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
unsigned long flags;
u8 maccc;
local_irq_save(flags);
maccc = mb->maccc;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
__mace_set_address(dev, addr);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mb->maccc = maccc;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
local_irq_restore(flags);
return 0;
}
/*
* Open the Macintosh MACE. Most of this is playing with the DMA
* engine. The ethernet chip is quite friendly.
*/
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static int mace_open(struct net_device *dev)
{
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
struct mace_data *mp = netdev_priv(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
volatile struct mace *mb = mp->mace;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
/* reset the chip */
mace_reset(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (request_irq(dev->irq, mace_interrupt, 0, dev->name, dev)) {
printk(KERN_ERR "%s: can't get irq %d\n", dev->name, dev->irq);
return -EAGAIN;
}
if (request_irq(mp->dma_intr, mace_dma_intr, 0, dev->name, dev)) {
printk(KERN_ERR "%s: can't get irq %d\n", dev->name, mp->dma_intr);
free_irq(dev->irq, dev);
return -EAGAIN;
}
/* Allocate the DMA ring buffers */
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
mp->tx_ring = dma_alloc_coherent(mp->device,
N_TX_RING * MACE_BUFF_SIZE,
&mp->tx_ring_phys, GFP_KERNEL);
if (mp->tx_ring == NULL) {
printk(KERN_ERR "%s: unable to allocate DMA tx buffers\n", dev->name);
goto out1;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
mp->rx_ring = dma_alloc_coherent(mp->device,
N_RX_RING * MACE_BUFF_SIZE,
&mp->rx_ring_phys, GFP_KERNEL);
if (mp->rx_ring == NULL) {
printk(KERN_ERR "%s: unable to allocate DMA rx buffers\n", dev->name);
goto out2;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mace_dma_off(dev);
/* Not sure what these do */
psc_write_word(PSC_ENETWR_CTL, 0x9000);
psc_write_word(PSC_ENETRD_CTL, 0x9000);
psc_write_word(PSC_ENETWR_CTL, 0x0400);
psc_write_word(PSC_ENETRD_CTL, 0x0400);
mace_rxdma_reset(dev);
mace_txdma_reset(dev);
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
/* turn it on! */
mb->maccc = ENXMT | ENRCV;
/* enable all interrupts except receive interrupts */
mb->imr = RCVINT;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return 0;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
out2:
dma_free_coherent(mp->device, N_TX_RING * MACE_BUFF_SIZE,
mp->tx_ring, mp->tx_ring_phys);
out1:
free_irq(dev->irq, dev);
free_irq(mp->dma_intr, dev);
return -ENOMEM;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
/*
* Shut down the mace and its interrupt channel
*/
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static int mace_close(struct net_device *dev)
{
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
struct mace_data *mp = netdev_priv(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
volatile struct mace *mb = mp->mace;
mb->maccc = 0; /* disable rx and tx */
mb->imr = 0xFF; /* disable all irqs */
mace_dma_off(dev); /* disable rx and tx dma */
return 0;
}
/*
* Transmit a frame
*/
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static int mace_xmit_start(struct sk_buff *skb, struct net_device *dev)
{
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
struct mace_data *mp = netdev_priv(dev);
unsigned long flags;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
/* Stop the queue since there's only the one buffer */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
local_irq_save(flags);
netif_stop_queue(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (!mp->tx_count) {
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
printk(KERN_ERR "macmace: tx queue running but no free buffers.\n");
local_irq_restore(flags);
return NETDEV_TX_BUSY;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
mp->tx_count--;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
local_irq_restore(flags);
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mp->stats.tx_packets++;
mp->stats.tx_bytes += skb->len;
/* We need to copy into our xmit buffer to take care of alignment and caching issues */
[SK_BUFF]: Introduce skb_copy_from_linear_data{_offset} To clearly state the intent of copying from linear sk_buffs, _offset being a overly long variant but interesting for the sake of saving some bytes. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2007-03-28 05:55:52 +08:00
skb_copy_from_linear_data(skb, mp->tx_ring, skb->len);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* load the Tx DMA and fire it off */
psc_write_long(PSC_ENETWR_ADDR + mp->tx_slot, (u32) mp->tx_ring_phys);
psc_write_long(PSC_ENETWR_LEN + mp->tx_slot, skb->len);
psc_write_word(PSC_ENETWR_CMD + mp->tx_slot, 0x9800);
mp->tx_slot ^= 0x10;
dev_kfree_skb(skb);
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
dev->trans_start = jiffies;
return NETDEV_TX_OK;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
static struct net_device_stats *mace_stats(struct net_device *dev)
{
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
struct mace_data *mp = netdev_priv(dev);
return &mp->stats;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
static void mace_set_multicast(struct net_device *dev)
{
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
struct mace_data *mp = netdev_priv(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
volatile struct mace *mb = mp->mace;
int i, j;
u32 crc;
u8 maccc;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
unsigned long flags;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
local_irq_save(flags);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
maccc = mb->maccc;
mb->maccc &= ~PROM;
if (dev->flags & IFF_PROMISC) {
mb->maccc |= PROM;
} else {
unsigned char multicast_filter[8];
struct dev_mc_list *dmi = dev->mc_list;
if (dev->flags & IFF_ALLMULTI) {
for (i = 0; i < 8; i++) {
multicast_filter[i] = 0xFF;
}
} else {
for (i = 0; i < 8; i++)
multicast_filter[i] = 0;
for (i = 0; i < dev->mc_count; i++) {
crc = ether_crc_le(6, dmi->dmi_addr);
j = crc >> 26; /* bit number in multicast_filter */
multicast_filter[j >> 3] |= 1 << (j & 7);
dmi = dmi->next;
}
}
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
if (mp->chipid == BROKEN_ADDRCHG_REV)
mb->iac = LOGADDR;
else {
mb->iac = ADDRCHG | LOGADDR;
while ((mb->iac & ADDRCHG) != 0)
;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
for (i = 0; i < 8; ++i)
mb->ladrf = multicast_filter[i];
if (mp->chipid != BROKEN_ADDRCHG_REV)
mb->iac = 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
mb->maccc = maccc;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
local_irq_restore(flags);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
static void mace_handle_misc_intrs(struct mace_data *mp, int intr)
{
volatile struct mace *mb = mp->mace;
static int mace_babbles, mace_jabbers;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
if (intr & MPCO)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mp->stats.rx_missed_errors += 256;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
mp->stats.rx_missed_errors += mb->mpc; /* reading clears it */
if (intr & RNTPCO)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mp->stats.rx_length_errors += 256;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
mp->stats.rx_length_errors += mb->rntpc; /* reading clears it */
if (intr & CERR)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
++mp->stats.tx_heartbeat_errors;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
if (intr & BABBLE)
if (mace_babbles++ < 4)
printk(KERN_DEBUG "macmace: babbling transmitter\n");
if (intr & JABBER)
if (mace_jabbers++ < 4)
printk(KERN_DEBUG "macmace: jabbering transceiver\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
static irqreturn_t mace_interrupt(int irq, void *dev_id)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
struct net_device *dev = (struct net_device *) dev_id;
struct mace_data *mp = netdev_priv(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
volatile struct mace *mb = mp->mace;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
int intr, fs;
unsigned int flags;
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
/* don't want the dma interrupt handler to fire */
local_irq_save(flags);
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
intr = mb->ir; /* read interrupt register */
mace_handle_misc_intrs(mp, intr);
if (intr & XMTINT) {
fs = mb->xmtfs;
if ((fs & XMTSV) == 0) {
printk(KERN_ERR "macmace: xmtfs not valid! (fs=%x)\n", fs);
mace_reset(dev);
/*
* XXX mace likes to hang the machine after a xmtfs error.
* This is hard to reproduce, reseting *may* help
*/
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
/* dma should have finished */
if (!mp->tx_count) {
printk(KERN_DEBUG "macmace: tx ring ran out? (fs=%x)\n", fs);
}
/* Update stats */
if (fs & (UFLO|LCOL|LCAR|RTRY)) {
++mp->stats.tx_errors;
if (fs & LCAR)
++mp->stats.tx_carrier_errors;
else if (fs & (UFLO|LCOL|RTRY)) {
++mp->stats.tx_aborted_errors;
if (mb->xmtfs & UFLO) {
printk(KERN_ERR "%s: DMA underrun.\n", dev->name);
mp->stats.tx_fifo_errors++;
mace_txdma_reset(dev);
}
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
if (mp->tx_count)
netif_wake_queue(dev);
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
local_irq_restore(flags);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
return IRQ_HANDLED;
}
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
static void mace_tx_timeout(struct net_device *dev)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
struct mace_data *mp = netdev_priv(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
volatile struct mace *mb = mp->mace;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
unsigned long flags;
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
local_irq_save(flags);
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
/* turn off both tx and rx and reset the chip */
mb->maccc = 0;
printk(KERN_ERR "macmace: transmit timeout - resetting\n");
mace_txdma_reset(dev);
mace_reset(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
/* restart rx dma */
mace_rxdma_reset(dev);
mp->tx_count = N_TX_RING;
netif_wake_queue(dev);
/* turn it on! */
mb->maccc = ENXMT | ENRCV;
/* enable all interrupts except receive interrupts */
mb->imr = RCVINT;
local_irq_restore(flags);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
/*
* Handle a newly arrived frame
*/
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static void mace_dma_rx_frame(struct net_device *dev, struct mace_frame *mf)
{
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
struct mace_data *mp = netdev_priv(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct sk_buff *skb;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
unsigned int frame_status = mf->rcvsts;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
if (frame_status & (RS_OFLO | RS_CLSN | RS_FRAMERR | RS_FCSERR)) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mp->stats.rx_errors++;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
if (frame_status & RS_OFLO) {
printk(KERN_DEBUG "%s: fifo overflow.\n", dev->name);
mp->stats.rx_fifo_errors++;
}
if (frame_status & RS_CLSN)
mp->stats.collisions++;
if (frame_status & RS_FRAMERR)
mp->stats.rx_frame_errors++;
if (frame_status & RS_FCSERR)
mp->stats.rx_crc_errors++;
} else {
unsigned int frame_length = mf->rcvcnt + ((frame_status & 0x0F) << 8 );
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
skb = dev_alloc_skb(frame_length + 2);
if (!skb) {
mp->stats.rx_dropped++;
return;
}
skb_reserve(skb, 2);
memcpy(skb_put(skb, frame_length), mf->data, frame_length);
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->last_rx = jiffies;
mp->stats.rx_packets++;
mp->stats.rx_bytes += frame_length;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
}
/*
* The PSC has passed us a DMA interrupt event.
*/
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 21:55:46 +08:00
static irqreturn_t mace_dma_intr(int irq, void *dev_id)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
struct net_device *dev = (struct net_device *) dev_id;
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
struct mace_data *mp = netdev_priv(dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
int left, head;
u16 status;
u32 baka;
/* Not sure what this does */
while ((baka = psc_read_long(PSC_MYSTERY)) != psc_read_long(PSC_MYSTERY));
if (!(baka & 0x60000000)) return IRQ_NONE;
/*
* Process the read queue
*/
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
status = psc_read_word(PSC_ENETRD_CTL);
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (status & 0x2000) {
mace_rxdma_reset(dev);
} else if (status & 0x0100) {
psc_write_word(PSC_ENETRD_CMD + mp->rx_slot, 0x1100);
left = psc_read_long(PSC_ENETRD_LEN + mp->rx_slot);
head = N_RX_RING - left;
/* Loop through the ring buffer and process new packages */
while (mp->rx_tail < head) {
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
mace_dma_rx_frame(dev, (struct mace_frame*) (mp->rx_ring
+ (mp->rx_tail * MACE_BUFF_SIZE)));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mp->rx_tail++;
}
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* If we're out of buffers in this ring then switch to */
/* the other set, otherwise just reactivate this one. */
if (!left) {
mace_load_rxdma_base(dev, mp->rx_slot);
mp->rx_slot ^= 0x10;
} else {
psc_write_word(PSC_ENETRD_CMD + mp->rx_slot, 0x9800);
}
}
drivers/net: Trim trailing whitespace Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-14 01:24:59 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
* Process the write queue
*/
status = psc_read_word(PSC_ENETWR_CTL);
if (status & 0x2000) {
mace_txdma_reset(dev);
} else if (status & 0x0100) {
psc_write_word(PSC_ENETWR_CMD + mp->tx_sloti, 0x0100);
mp->tx_sloti ^= 0x10;
mp->tx_count++;
}
return IRQ_HANDLED;
}
MODULE_LICENSE("GPL");
m68k: macmace fixes Fix a race condition in the transmit code, where the dma interrupt could update the free tx buffer count concurrently and wedge the tx queue. Fix the misuse of the rx frame status and rx frame length registers: no more "fifo overrun" errors caused by the OFLOW bit being tested in the frame length register (instead of the status register), and no more missed packets due to incorrect length taken from status register (instead of the frame length register). Fix a panic (skb_over_panic BUG) caused by allocating and then copying an incoming packet while the packet length register was changing. Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC functions when MacOS does not initialise it (important for anyone wanting to use the Emile boot loader). Cut-and-paste the error counting and timeout recovery code from mace.c. Fix over allocation of rx buffer memory (it's page order, not page count). Converted to driver model. Converted to DMA API. Since I've run out of ways to make it fail, and since it performs well now, promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and 660av. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02 04:33:01 +08:00
MODULE_DESCRIPTION("Macintosh MACE ethernet driver");
static int __devexit mac_mace_device_remove (struct platform_device *pdev)
{
struct net_device *dev = platform_get_drvdata(pdev);
struct mace_data *mp = netdev_priv(dev);
unregister_netdev(dev);
free_irq(dev->irq, dev);
free_irq(IRQ_MAC_MACE_DMA, dev);
dma_free_coherent(mp->device, N_RX_RING * MACE_BUFF_SIZE,
mp->rx_ring, mp->rx_ring_phys);
dma_free_coherent(mp->device, N_TX_RING * MACE_BUFF_SIZE,
mp->tx_ring, mp->tx_ring_phys);
free_netdev(dev);
return 0;
}
static struct platform_driver mac_mace_driver = {
.probe = mace_probe,
.remove = __devexit_p(mac_mace_device_remove),
.driver = {
.name = mac_mace_string,
},
};
static int __init mac_mace_init_module(void)
{
int err;
if ((err = platform_driver_register(&mac_mace_driver))) {
printk(KERN_ERR "Driver registration failed\n");
return err;
}
mac_mace_device = platform_device_alloc(mac_mace_string, 0);
if (!mac_mace_device)
goto out_unregister;
if (platform_device_add(mac_mace_device)) {
platform_device_put(mac_mace_device);
mac_mace_device = NULL;
}
return 0;
out_unregister:
platform_driver_unregister(&mac_mace_driver);
return -ENOMEM;
}
static void __exit mac_mace_cleanup_module(void)
{
platform_driver_unregister(&mac_mace_driver);
if (mac_mace_device) {
platform_device_unregister(mac_mace_device);
mac_mace_device = NULL;
}
}
module_init(mac_mace_init_module);
module_exit(mac_mace_cleanup_module);