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path: root/drivers/net/dm9000.c
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2006-10-08[PATCH] misc arm pt_regs fixesAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells
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)
2006-09-11[PATCH] Fix dm9000 release_resourceDirk Opfer
dm9000_release_board calls release_resource with the platform resource instead of the requested resource: db->addr_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); db->addr_req = request_mem_region(db->addr_res->start, i, pdev->name); dm9000_release_board: if (db->addr_res != NULL) { release_resource(db->addr_res); kfree(db->addr_req); With this behavior the kernel will crash on the second removal. The attached patch fix this problem. Signed-off-by: Dirk Opfer <Dirk@Opfer-Online.de> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-19[PATCH] net: Add netconsole support to dm9000 driverKevin Hao
Add netconsole support to dm9000 driver. Cc: Jeff Garzik <jeff@garzik.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-07-02[PATCH] irq-flags: drivers/net: Use the new IRQF_ constantsThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26[PATCH] DM9000 - minor code cleanupsBen Dooks
Ensure the driver's module owner field is initialised for when this is being built and loaded as a module. Also change make the dm9000_tx_done function static, as it is not exported elsewhere. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-26[PATCH] DM9000 - do no re-init spin lockBen Dooks
The DM9000 initialisation sequence for the hardware re-initialise the board spin-lock, which is in my view wrong. This patch removes the extra spin lock initialisation Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-26[PATCH] DM9000 - check for MAC left in by bootloaderBen Dooks
The DM9000 driver does not deal with the case where there is no serial EEPROM to store the configuration, and the bootloader has placed an MAC address into the device already. If there is no valid MAC in the EEPROM, read the one already in the chip and check to see if that one is valid. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-26[PATCH] DM9000 - better checks for platform resourcesBen Dooks
The current DM9000 driver cannot cope if it is given more than 3 resources (for example, if it is being passed an wake-up irq that it is not using yet). Check that we have been given at-least one IRQ resource. Also fix the minor type-casting for the case of 2 resources. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2005-11-11Merge master.kernel.org:/home/rmk/linux-2.6-drvmodelLinus Torvalds
2005-11-09[DRIVER MODEL] Convert platform drivers to use struct platform_driverRussell King
This allows us to eliminate the casts in the drivers, and eventually remove the use of the device_driver function pointer methods for platform device drivers. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-11-09[PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reasonOlaf Hering
This patch removes almost all inclusions of linux/version.h. The 3 #defines are unused in most of the touched files. A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is unfortunatly in linux/version.h. There are also lots of #ifdef for long obsolete kernels, this was not touched. In a few places, the linux/version.h include was move to where the LINUX_VERSION_CODE was used. quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'` search pattern: /UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-29Create platform_device.h to contain all the platform device details.Russell King
Convert everyone who uses platform_bus_type to include linux/platform_device.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] DRIVER MODEL: Get rid of the obsolete tri-level suspend/resume callbacksRussell King
In PM v1, all devices were called at SUSPEND_DISABLE level. Then all devices were called at SUSPEND_SAVE_STATE level, and finally SUSPEND_POWER_DOWN level. However, with PM v2, to maintain compatibility for platform devices, I arranged for the PM v2 suspend/resume callbacks to call the old PM v1 suspend/resume callbacks three times with each level in order so that existing drivers continued to work. Since this is obsolete infrastructure which is no longer necessary, we can remove it. Here's an (untested) patch to do exactly that. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-06[PATCH] missed s/u32/pm_message_t/ (dm9000)viro@ftp.linux.org.uk
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-18[PATCH] DM9000 - incorrect ioctl() handlingBen Dooks
The DM9000 driver is responding to ioctl() calls it should not be. This can cause problems with the wireless tools incorrectly indentifying the device as wireless capable, and crashing under certain operations. This patch also moves the version printk() to the init call, so that you only get it once for multiple devices, and to show it is loaded if there are no defined dm9000s Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-18[PATCH] DM9000 - spinlock fixesBen Dooks
Fix DM9000 driver usage of spinlocks, which mainly came to light when running a kernel with spinlock debugging. These come down to: 1) Un-initialised spin lock 2) Several cases of using spin_xxx(lock) and not spin_xxx(&lock) 3) move the locking around the phy reg for read/write to only keep the lock when actually reading or writing to the phy. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-06-26[PATCH] DM9000 network driver bugfixSascha Hauer
This patch fixes two bugs in the dm9000 network driver: - Don't read one byte too much in 8bit mode. - release correct resource Signed-off-by: Jochen Karrer <j.karrer@lightmaze.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org>
2005-05-15[PATCH] DM9000 network driverSascha Hauer
This patch adds support for the davicom dm9000 network driver. The dm9000 is found on some embedded arm boards such as the pimx1 or the scb9328. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Andrew Morton <akpm@osdl.org> diff -puN /dev/null drivers/net/dm9000.c