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path: root/drivers/net/e1000/e1000_main.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>
2006-09-27e1000: Janitor: Use #defined values for literalsLinas Vepstas
Minor janitorial patch: use #defines for literal values. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e1000: don't strip vlan ID if 8021q claims itBruce Allan
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e1000: driver state fixes (race fix)Auke Kok
We were plagued by our interrupt handler posting a watchdog event which could occur when our adapter was going down in case a late packet arrived just before e1000_down() finished. This caused the watchdog timer to start after the NIC was down and keep rescheduling it every N seconds. Once the driver unloaded it would panic. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e1000: add PCI-E capability detection codeJeff Kirsher
Add code to display the detected PCI-E bus width. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e1000: handle manageability for pci-e adapters at PHY powerdownBruce Allan
When powering down the PHY (if WoL is disabled) we should only check copper PHY's and handle PCI-E adapters differently. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e1000: gather hardware bit tweaks.Jeff Kirsher
Several hardware bits were set all over the driver and have been consolidated into a single function. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e1000: Maybe stop TX if not enough free descriptorsJesse Brandeburg
Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e1000: Jumbo frames fixes for 82573Bruce Allan
Disable jumbo frames for 82573L alltogether and when ASPM is enabled since the hardware has problems with it. For the NICs that do support this in the 82573 series we set ERT_2048 to attempt to receive as much traffic as early as we can. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e1000: Fix MANC detection for PCIE adaptersJeff Kirsher
Several manageability capability detection parts hinted towards our code being incomplete for PCI-E. According to spec, we do not want to poke any MANC bits at all. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e1000: add multicast stats countersMitch Williams
Add 4 multicast and broadcast hardware counters (rx/tx), and eliminate as many non-hardware counters as possible. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e1000: remove unused code and make symbols staticNicholas Nunley
Signed-off-by: Nicholas Nunley <nicholas.d.nunley@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-09-27e1000: keep .suspend and .resume driver methods in CONFIG_PMAuke Kok
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>
2006-09-24Merge branch 'upstream-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (217 commits) net/ieee80211: fix more crypto-related build breakage [PATCH] Spidernet: add ethtool -S (show statistics) [NET] GT96100: Delete bitrotting ethernet driver [PATCH] mv643xx_eth: restrict to 32-bit PPC_MULTIPLATFORM [PATCH] Cirrus Logic ep93xx ethernet driver r8169: the MMIO region of the 8167 stands behin BAR#1 e1000, ixgb: Remove pointless wrappers [PATCH] Remove powerpc specific parts of 3c509 driver [PATCH] s2io: Switch to pci_get_device [PATCH] gt96100: move to pci_get_device API [PATCH] ehea: bugfix for register access functions [PATCH] e1000 disable device on PCI error drivers/net/phy/fixed: #if 0 some incomplete code drivers/net: const-ify ethtool_ops declarations [PATCH] ethtool: allow const ethtool_ops [PATCH] sky2: big endian [PATCH] sky2: fiber support [PATCH] sky2: tx pause bug fix drivers/net: Trim trailing whitespace [PATCH] ehea: IBM eHEA Ethernet Device Driver ... Manually resolved conflicts in drivers/net/ixgb/ixgb_main.c and drivers/net/sky2.c related to CHECKSUM_HW/CHECKSUM_PARTIAL changes by commit 84fa7933a33f806bbbaae6775e87459b1ec584c0 that just happened to be next to unrelated changes in this update.
2006-09-22[NET]: Replace CHECKSUM_HW by CHECKSUM_PARTIAL/CHECKSUM_COMPLETEPatrick McHardy
Replace CHECKSUM_HW by CHECKSUM_PARTIAL (for outgoing packets, whose checksum still needs to be completed) and CHECKSUM_COMPLETE (for incoming packets, device supplied full checksum). Patch originally from Herbert Xu, updated by myself for 2.6.18-rc3. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-19[PATCH] e1000 disable device on PCI errorLinas 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 e1000 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> Cc: John Ronciak <john.ronciak@intel.com> Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: Auke Kok <auke-jan.h.kok@intel.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-12[PATCH] e1000: revert 'e1000: Remove 0x1000 as supported device'Auke-Jan H Kok
The commit 'e1000: Remove 0x1000 as supported device' (Jeff Kirsher, 673a052fde79ab5e9dce569b0336358812ddba2d) Removes PIC device ID 8086:1000 from the list of supported devices. A fix was submitted for the original issue (commit 6a9516989f94df10d9a27ba543c6b53b3e69c84a). This commit reverts commit 673a052fde79ab5e9dce569b0336358812ddba2d and re-enables 82542rev3 chips completely. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-12Merge branch 'upstream-fixes' into upstreamJeff Garzik
2006-09-12[PATCH] e1000: fix TX timout hang regression for 82542rev3Auke Kok
Commit 581d708eb47cccb5f41bc0817e50c9b004011ba8 (oct. 5 2005) introduced partial Multiqueue support for e1000 which broke macro smartness in setting up head/tail registers for 82542 rev3 chipsets, making these adapters completely non-working since 2.6.15. This commit sets the proper head and tail registers for read and write descriptor rings. Ths fix was tested on an 82542 rev3 NIC and newer NICs. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-31e1000: Increment driver version to 7.2.7-k2Auke Kok
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-31e1000: clean up skb allocation codeChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-31e1000: Add PCI ID 0x10a4 for our new 4-port PCI-Express deviceJesse Brandeburg
Device 0x10a4 is a double 82571 on a single PCI-Express card and has 4 gigabit capable ports. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-31e1000: unify WoL capability detection codeJesse Brandeburg
WoL is constantly giving problems and needed a rewrite. Consolidates all WoL capabilities into a single function, and disables WoL for all other ports on the device except for port A. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-28e1000: remove unused part_num reading codeAuke Kok
Remove the code that reads part_num from the EEPROM. This part number is never displayed or queryable by the user. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-28e1000: error out if we cannot enable PCI device on resumeAuke Kok
Do not ignore errors returned by pci_enable_device, instead error out. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-28e1000: ring buffers resources cleanupVasily Averin
Memory leak was found in 2.6.18-rc4 and e1000 7.2.7 from sourceforge: We should free resources allocated for previous rings if following allocation fails. Signed-off-by: Vasily Averin <vvs@sw.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-28e1000: e1000_probe resources cleanupVasily Averin
Fix resources cleanup in e1000_probe() Signed-off-by: Vasily Averin <vvs@sw.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-28e1000: IRQ resources cleanupVasily Averin
irq leak was found in 2.6.18-rc4 and e1000 7.2.7 from sourceforge: if e1000_up fails in e1000_open() we do not free allocated irq Signed-off-by: Vasily Averin <vvs@sw.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-28e1000: Whitespace cleanup, cosmetic changesAuke Kok
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
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>
2006-08-19[PATCH] drivers/net/e1000/: possible cleanupsAdrian Bunk
- make needlessly global functions static - #if 0 the following unused global functions: - e1000_hw.c: e1000_mc_addr_list_update() - e1000_hw.c: e1000_read_reg_io() - e1000_hw.c: e1000_enable_pciex_master() - e1000_hw.c: e1000_ife_disable_dynamic_power_down() - e1000_hw.c: e1000_ife_enable_dynamic_power_down() - e1000_hw.c: e1000_write_ich8_word() - e1000_hw.c: e1000_duplex_reversal() - e1000_main.c: e1000_io_read() Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: John Ronciak <john.ronciak@intel.com> Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-16e1000: Increment driver version to 7.1.9-k6Auke Kok
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-16e1000: Disable aggressive clocking on esb2 with SERDES portJeff Kirsher
Disable aggressive clocking on esb2 with SERDES port as it causes hardware problems. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-16e1000: Explicitly power up the PHY during loopback testing.Jesse Brandeburg
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-16e1000: Remove 0x1000 as supported deviceJeff Kirsher
Remove pci ID 8086:1000 from the list fo supported devices. This device has not functioned with the driver for very long (since v. 5.2.4!) and we lack the resources to come with a substantial fix. There are only few cards of this type out there. Signed-off-by: Jeff Kirsher <Jeffrey.t.kirsher@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-16e1000: Same cosmetic fix as earlier sent out for IPV4.Auke Kok
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-08-02[E1000]: Convert to netdev_alloc_skbDavid S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-14e1000: bump version to 7.1.9-k4Auke Kok
Bump the version to 7.1.9-k4 to indicate three extra changes. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-07-14e1000: fix panic on large frame receive when mtu=defaultAuke Kok
A panic was reported when receiving 1522 size packets if using the default MTU. we should set the initial rx buffer length to the value that e1000changemtu sets so that we can receive any packet that would not be dropped by LPE=0. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Auke Kok <auke.jan.h.kok@intel.com>
2006-07-14e1000: remove CRC bytes from measured packet lengthAuke Kok
After removing the hardware CRC stripping which causes problems with SOL and related issues, we need to compensate for this changed size. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-07-14e1000: Redo netpoll fix to address community concernsAuke Kok
The original suggested fix for netpoll was found to be racy on SMP kernels. While it is highly unlikely that this race would ever be seen in the real world due to current netpoll usage models, we implemented this updated fix to address concerns. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
2006-07-12[PATCH] e1000: irq naming updateAndrew Morton
Use the new names. Cc: Auke Kok <auke-jan.h.kok@intel.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-07-09Merge commit master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 of HEADLinus Torvalds
* HEAD: [AX.25]: Use kzalloc [ATM] net/atm/clip.c: fix PROC_FS=n compile [PKT_SCHED]: act_api: Fix module leak while flushing actions [NET]: Fix IPv4/DECnet routing rule dumping [NET] gso: Fix up GSO packets with broken checksums [NET] gso: Add skb_is_gso [IRDA]: fix drivers/net/irda/ali-ircc.c:ali_ircc_init() [ATM]: fix possible recursive locking in skb_migrate() [ATM]: Typo in drivers/atm/Kconfig... [TG3]: add amd8131 to "write reorder" chipsets [NET]: Fix network device interface printk message priority
2006-07-08[NET] gso: Add skb_is_gsoHerbert Xu
This patch adds the wrapper function skb_is_gso which can be used instead of directly testing skb_shinfo(skb)->gso_size. This makes things a little nicer and allows us to change the primary key for indicating whether an skb is GSO (if we ever want to do that). Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-05Merge branch 'upstream' of git://lost.foo-projects.org/~ahkok/git/netdev-2.6 ↵Jeff Garzik
into upstream Conflicts: drivers/net/e1000/e1000_main.c
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>
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