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path: root/drivers/net/e100.c
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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)
2006-09-27e100, e1000, ixgb: increment version numbersAuke Kok
e100-3.5.17-k2 e1000-7.2.9-k2 ixgb-1.0.117-k2 Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e100: rework WoL and shutdown handlingAuke Kok
Unify our shutdown/suspend/resume code and make it similar to e1000: e1000_shutdown now calls suspend which does the exact same thing on shutdown except saving PCI config state on suspend. WoL setup code is now also more simple and works even when CONFIG_PM is not set, which was previously broken. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e100: Add debugging code for cb cleaning.Jesse Brandeburg
Refine cb cleaning debug printout and print out all cleaned cbs' status. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e100, e1000, ixgb: Fix an impossible memory overwrite bugAuke Kok
We keep getting requests from people that think that this might be an exploitable hole where we would overwrite 4 bytes in the netdev struct if the pci name would exceed 15 characters. In reality this will never happen but we fix it anyway. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e100, e1000, ixgb: update copyright header and remove LICENSEAuke Kok
This update to the copyright header adds the mailinglist, and aligns it with the kernel licensing as well as remove the offending 'all rights reserved'. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-13drivers/net: const-ify ethtool_ops declarationsJeff Garzik
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-04Merge branch 'master' into upstreamJeff Garzik
2006-08-31e100: increment version to 3.5.16-k2Auke Kok
Increment the version of e100 to 3.5.16-k2, increment dates. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-31e100: remove skb->dev assignmentAuke Kok
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-31e100: fix error recoveryLinas Vepstas
A recent patch in -mm3 titled "gregkh-pci-pci-don-t-enable-device-if-already-enabled.patch" causes pci_enable_device() to be a no-op if the kernel thinks that the device is already enabled. This change breaks the PCI error recovery mechanism in the e100 device driver, since, after PCI slot reset, the card is no longer enabled. This is a trivial fix for this problem. Tested. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-31e100: Convert e100 to use netdev_alloc_skb().Auke Kok
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-29[E100]: Add module option to ignore bad EEPROM checksums.David S. Miller
Several people run into the situation where the E100 EEPROM contents are fine, but the checksum hasn't been set properly. This renders the device useless for them even though it would function correctly. The default is off, which retains the current behavior. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-24Merge branch 'upstream-fixes' of ↵Jeff Garzik
git://lost.foo-projects.org/~ahkok/git/netdev-2.6 into tmp
2006-08-19drivers/net: Remove deprecated use of pci_module_init()Jeff Garzik
From: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-16e100: increment version to 3.5.10-k4Auke Kok
Increment the version of e100 to 3.5.10-k4, increment dates. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-16e100: Fix MDIO/MDIO-XJeff Kirsher
MDIO/MDIO-X was broken due to a wrong errata. Removing the workaround code fixes for affected NICs. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
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>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-27[PATCH] 64bit resource: fix up printks for resources in networks driversGreg Kroah-Hartman
This is needed if we wish to change the size of the resource structures. Based on an original patch from Vivek Goyal <vgoyal@in.ibm.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-08e100: add PCI Error RecoveryAuke Kok
Various PCI bus errors can be signaled by newer PCI controllers. This patch adds the PCI error recovery callbacks to the intel ethernet e100 device driver. The patch has been tested, and appears to work well. Signed-off-by: Linas Vepstas <linas@linas.org> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-03-16Merge branch 'upstream-fixes'Jeff Garzik
2006-03-15e100: fix eeh on pseries during ethtool -tJesse Brandeburg
Olaf Hering reported a problem on pseries with e100 where ethtool -t would cause a bus error, and the e100 driver would stop working. Due to the new load ucode command the cb list must be allocated before calling e100_init_hw, so remove the call and just let e100_up take care of it. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
2006-03-04Fix io ordering problems in e100Catalin(ux aka Dino) BOIE
Checking e100.c code against Documentation/io_ordering.txt I found the following problem: spin_lock_irq... write spin-unlock e100_write_flush The attached patch fix the code like this: spin_lock_irq... write e100_write_flush spin-unlock Signed-off-by: Catalin BOIE <catab@umbrella.ro> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-02-07e100: remove init_hw call to fix panicJesse Brandeburg
e100 seems to have had a long standing bug where e100_init_hw was being called when it should not have been. This caused a panic due to recent changes that rely on correct set up in the driver, and more robust error paths. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-01-17[PATCH] e100: e100 whitespace fixesJesse Brandeburg
e100: e100 whitespace fixes These are whitespace only fixes. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-01-17[PATCH] e100: Handle the return values from pci_* functionsJesse Brandeburg
e100: Handle the return values from pci_* functions This is to resolve warnings during compile time. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-01-17[PATCH] e100: Fix TX hang and RMCP Ping issue (due to a microcode loading issue)Jesse Brandeburg
e100: Fix TX hang and RMCP Ping issue (due to a microcode loading issue) Set the end of list bit to cause the hardware's transmit state machine to work correctly and not prevent management (BMC) traffic. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-01-14[PATCH] Unlinline a bunch of other functionsArjan van de Ven
Remove the "inline" keyword from a bunch of big functions in the kernel with the goal of shrinking it by 30kb to 40kb Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-12[PATCH] corruption during e100 MDI register accessODonnell, Michael
We have identified two related bugs in the e100 driver. Both bugs are related to manipulation of the MDI control register. The first problem is that the Ready bit is being ignored when writing to the Control register; we noticed this because the Linux bonding driver would occasionally come to the spurious conclusion that the link was down when querying Link State. It turned out that by failing to wait for a previous command to complete it was selecting what was essentially a random register in the MDI register set. When we added code that waits for the Ready bit (as shown in the patch file below) all such problems ceased. The second problem is that, although access to the MDI registers involves multiple steps which must not be intermixed, nothing was defending against two or more threads attempting simultaneous access. The most obvious situation where such interference could occur involves the watchdog versus ioctl paths, but there are probably others, so we recommend the locking shown in our patch file. Signed-off-by: Michael O'Donnell <Michael.ODonnell@stratus.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: John Ronciak <john.ronciak@intel.com> Cc: Ganesh Venkatesan <ganesh.venkatesan@intel.com> Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-18[PATCH] e100: re-enable microcode with more useful defaultsJesse Brandeburg
For the four versions of hardware that we (currently) support microcode download on, the default configuration of our receive interrupt mitigation microcode was too aggressive, and caused unnecessary delays when pinging, and low(er) throughput on single connection latency sensitive performance tests. This code adds microcode support, and sets the defaults to more reasonable settings. It also explains the functionality in the code in more detail. Compile and load tested, shows expected behavior for slight delay of ping packets (1-2ms) when ucode is loaded, and decent interrupt moderation for small packets, while maintaining good throughput. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-07[PATCH] Fix sparse warning in e100 driver.Luiz Fernando Capitulino
The patch below fixes the following sparse warnings: drivers/net/e100.c:1481:13: warning: Using plain integer as NULL pointer drivers/net/e100.c:1767:27: warning: Using plain integer as NULL pointer drivers/net/e100.c:1847:27: warning: Using plain integer as NULL pointer Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2005-10-13Merge branch 'master'Jeff Garzik
2005-10-11e100: revert CPU cycle saver microcode, it causes severe problemsJeff Garzik
for certain NICs Reverting 685fac63f5ca6c5ca06bab641e1a32bbf9287e89: > [PATCH] e100: CPU cycle saver microcode > > > Add cpu cycle saver microcode to 8086:{1209/1229} other than ICH devices. > > Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com> > Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com> > Signed-off-by: John Ronciak <john.ronciak@intel.com> > Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-21Merge /spare/repo/linux-2.6/Jeff Garzik
2005-09-14[PATCH] e100: support ETHTOOL_GPERMADDRJohn W. Linville
Add support for ETHTOOL_GPERMADDR to e100. Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-14[PATCH] e100: correct rx_dropped and add rx_missed_errorsJohn W. Linville
Do not count non-error frames dropped by the hardware as part of rx_dropped. Instead, count those frames dropped as rx_missed_errors. Also, do not count other error frames as part of rx_dropped. Finally, do not count oversized frames in rx_dropped (since they are counted as part of rx_length_errors). Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-25[PATCH] e100: Driver version, white space, comments & otherMalli Chilakala
Driver version, white space, comments & other Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com> Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-25[PATCH] e100: CPU cycle saver microcodeMalli Chilakala
Add cpu cycle saver microcode to 8086:{1209/1229} other than ICH devices. Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com> Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-25[PATCH] e100: Increased delay loop for command blocksMalli Chilakala
Increased delay loop for command blocks Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com> Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-25[PATCH] e100: fixed endian bug in xmit_prepare routineMalli Chilakala
Fixed endian bug associated with cb_i bit in xmit_prepare Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com> Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-25[PATCH] e100: added msleep_interruptible delayMalli Chilakala
added msleep_interruptible delay right before returning from diag_test Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com> Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-25[PATCH] e100: Do not check Rx packet length against mtuMalli Chilakala
Do not check Rx packet length against mtu - patch from Darren Tucker Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com> Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-06-27Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6Greg KH
2005-06-27[PATCH] PCI: make drivers use the pci shutdown callback instead of the ↵Greg Kroah-Hartman
driver core callback. Now we can change the pci core to always set this pointer, as pci drivers should use it, not the driver core callback. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-27[PATCH] e100: NAPI performance enhancementsMalli Chilakala
NAPI performance enhancements - Fixed issues with shared interrupts and NAPI resulting in bad performance. Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com> Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com>
2005-06-27[PATCH] e100: e100_eeprom_load was called after e100_phy_initMalli Chilakala
e100_eeprom_load was called after e100_phy_init causing phy_init not to use values set in EEPROM - from emann@mrv.com Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com> Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com>
2005-06-27[PATCH] e100: fixed e100 MDI/MDI-X issuesMalli Chilakala
Added patch from Eran Mann to fix following e100 MDI/MDI-X issues * MDI/MDI-X autodetection should never be enabled for 82551ER/QM chips * enabling this feature based on eeprom settings Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com> Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com>
2005-06-26drivers/net/: Use the DMA_{64,32}BIT_MASK constantsDomen Puncer
Use the DMA_{64,32}BIT_MASK constants from dma-mapping.h when calling pci_set_dma_mask() or pci_set_consistent_dma_mask() This patch includes dma-mapping.h explicitly because it caused errors on some architectures otherwise. See http://marc.theaimsgroup.com/?t=108001993000001&r=1&w=2 for details Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch> Signed-off-by: Domen Puncer <domen@coderock.org>
2005-05-12[PATCH] e100: Driver version, white space, comments, device idMalli Chilakala
Driver version, white space, comments. Also enabled ICH-7 support Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com> Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com>
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