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path: root/drivers/net/pcnet32.c (follow)
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* pcnet32: remove private net_device_stats structureDon Fry2007-10-181-26/+25
| | | | | | | | | | | | | Remove the statistics from the private structure. Use the net_device_stats in netn_device structure. Following Jeff Garzik's massive cleanup Sep 01. pcnet32 was not "low-hanging fruit". Tested x86_64. Signed-off-by: Don Fry <pcnet32@verizon.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* pcnet32: remove compile warnings in non-napi modeDon Fry2007-10-181-0/+4
| | | | | | | Remove compile warning when in non-napi mode. Signed-off-by: Don Fry <pcnet32@verizon.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* pcnet32: fix non-napi packet receptionDon Fry2007-10-181-0/+3
| | | | | | | | | | | Recent changes to the driver for the new napi API broke the reception of packets when in non-napi mode. The initialization of napi.weight was removed for the non-napi case leaving the value zero. Tested NAPI and non-NAPI on x86_64. Signed-off-by: Don Fry <pcnet32@verizon.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* pcnet32: endiannessAl Viro2007-10-111-50/+48
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [netdrvr] Stop using legacy hooks ->self_test_count, ->get_stats_countJeff Garzik2007-10-111-3/+8
| | | | | | | These have been superceded by the new ->get_sset_count() hook. Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [ETHTOOL] Provide default behaviors for a few ethtool sub-ioctlsJeff Garzik2007-10-111-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | For the operations get-tx-csum get-sg get-tso get-ufo the default ethtool_op_xxx behavior is fine for all drivers, so we permit op==NULL to imply the default behavior. This provides a more uniform behavior across all drivers, eliminating ethtool(8) "ioctl not supported" errors on older drivers that had not been updated for the latest sub-ioctls. The ethtool_op_xxx() functions are left exported, in case anyone wishes to call them directly from a driver-private implementation -- a not-uncommon case. Should an ethtool_op_xxx() helper remain unused for a while, except by net/core/ethtool.c, we can un-export it at a later date. [ Resolved conflicts with set/get value ethtool patch... -DaveM ] Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Nuke SET_MODULE_OWNER macro.Ralf Baechle2007-10-111-1/+0
| | | | | | | | | | | | It's been a useless no-op for long enough in 2.6 so I figured it's time to remove it. The number of people that could object because they're maintaining unified 2.4 and 2.6 drivers is probably rather small. [ Handled drivers added by netdev tree and some missed IRDA cases... -DaveM ] Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* pcnet32: add suspend and resume capabilityDon Fry2007-10-111-3/+32
| | | | | | | | Add suspend and resume capability to the driver. Tested both to ram and to disk on x86_64 platform. Signed-off-by: Don Fry <pcnet32@verizon.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [NET]: Make NAPI polling independent of struct net_device objects.Stephen Hemminger2007-10-111-35/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: ethtool_perm_addr only has one implementationMatthew Wilcox2007-07-311-1/+0
| | | | | | | | | All drivers implement ethtool get_perm_addr the same way -- by calling the generic function. So we can inline the generic function into the caller and avoid going through the drivers. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Kill eth_copy_and_sum().David S. Miller2007-07-111-2/+2
| | | | | | | | It hasn't "summed" anything in over 7 years, and it's just a straight mempcy ala skb_copy_to_linear_data() so just get rid of it. Signed-off-by: David S. Miller <davem@davemloft.net>
* pcnet32: change to use netdev_privDon Fry2007-04-281-42/+42
| | | | | | | | use netdev_priv() instead of dev->priv Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Don Fry <pcnet32@verizon.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* pcnet32: only allocate init_block dma consistentDon Fry2007-04-281-43/+34
| | | | | | | | | | | | | | | | | The patch below moves the init_block out of the private struct and only allocates init block with pci_alloc_consistent. This has two effects: 1. Performance increase for non cache coherent machines, because the CPU only data in the private struct are now cached 2. locks are working now for platforms, which need to have locks in cached memory Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: Don Fry <pcnet32@verizon.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [ETH]: Make eth_type_trans set skb->dev like the other *_type_transArnaldo Carvalho de Melo2007-04-261-1/+0
| | | | | | | One less thing for drivers writers to worry about. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* pcnet32: Fix PCnet32 performance bug on non-coherent architecutresDon Fry2007-03-061-2/+2
| | | | | | | | | | | | The PCnet32 driver always passed the the size of the largest possible packet to the pci_dma_sync_single_for_cpu and pci_dma_sync_single_for_device. This results in a fairly large "colateral damage" in the caches and makes the flush operation itself much slower. On a system with a 40MHz CPU this patch increases network bandwidth by about 12%. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Don Fry <pcnet32@verizon.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* drivers/net: eliminate irq handler impossible checks, needless castsJeff Garzik2006-10-061-7/+0
| | | | | | | | | - Eliminate check for irq handler 'dev_id==NULL' where the condition never occurs. - Eliminate needless casts to/from void* Signed-off-by: Jeff Garzik <jeff@garzik.org>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-051-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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)
* Remove all inclusions of <linux/config.h>Dave Jones2006-10-041-2/+0
| | | | | | kbuild explicitly includes this at build time. Signed-off-by: Dave Jones <davej@redhat.com>
* drivers/net: const-ify ethtool_ops declarationsJeff Garzik2006-09-131-1/+1
| | | | Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] pcnet32: NAPI implementationDon Fry2006-09-131-28/+104
| | | | | | | | | | | | | | | | | | | | | | Implement NAPI changes to pcnet32 driver. Compile default is off. Listed as experimental. Len and Don both worked on a NAPI implementation and have both tested these changes. An e1000 blasting short packets to the pcnet32 will lockup Don's system until the receive storm stops. Without NAPI Len's system watchdog would expire causing the system to reboot. With NAPI the system will stay operational. Tested ia32 and ppc64. Tested '970A, '971, '972, '973, '975, '976, and '978. The Kconfig changes came from Len. Don is to blame for all the others. Signed-off-by: Len Sorensen <lsorense@csclub.uwaterloo.ca> Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] pcnet32: break receive routine into two pieces.Don Fry2006-09-131-161/+141
| | | | | | | | | Breaking the receive frame processing into two routines for greater clarity. Tested ia32 and ppc64. Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] pcnet32: move/create receive and transmit routinesDon Fry2006-09-131-256/+259
| | | | | | | | | Move the receive routine and create the transmit routine. Tested ia32 and ppc64. Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] pcnet32: magic number cleanupDon Fry2006-09-131-30/+30
| | | | | | | | | Change some magic numbers to clearer names. A few whitespace changes. Tested ia32 and ppc64. Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] pcnet32: remove unnecessary save/restore register accesses.Don Fry2006-09-131-6/+1
| | | | | | | | | Delete unnecessary save/restore of rap in interrupt handler and statistics. tested ia32 and ppc64. Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* Merge branch 'upstream-fixes' into upstreamJeff Garzik2006-08-241-8/+17
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| * [PATCH] pcnet32: break in 2.6.18-rc1 identifiedDon Fry2006-08-241-8/+17
| | | | | | | | | | | | | | | | | | | | | | A change I made for 2.6.17 and another for 2.6.18 do not work on older pcnet32 chips which I do not have access to. If the chip is a 79C970 or 79C965, do not try and suspend or check the link status. I have tested with a 79C970A, 79C971, 79C972, 79C973, 79C975, 79C976, and 79C978. Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | drivers/net: Remove deprecated use of pci_module_init()Jeff Garzik2006-08-191-1/+1
|/ | | | | | | 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>
* [PATCH] pcnet32: Cleanup rx buffers after loopback test.Don Fry2006-07-051-59/+43
| | | | | | | | | | More cleanup to pcnet32_loopback_test to release receive buffers if device is not up. Created common routine to free rx buffers. Tested ia32 and ppc64 Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] pcnet32: Suspend the chip rather than restart when changing ↵Don Fry2006-07-051-27/+68
| | | | | | | | | | | | | multicast/promisc Suspend the chip if possible rather than stop and discard all tx and rx frames, when changing the mcast list or entering/leaving promiscuous mode. Created common pcnet32_suspend routine. Tested ia32 and ppc64 Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] pcnet32: Handle memory allocation failures cleanly when resizing ↵Don Fry2006-07-051-24/+251
| | | | | | | | | | | | | tx/rx rings Fix pcnet32_set_ringparam to handle memory allocation errors without leaving the adapter in an inoperative state and null pointers waiting to be dereferenced. Tested ia32 and ppc64. Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] pcnet32: Use kcalloc instead of kmalloc and memsetDon Fry2006-07-051-14/+10
| | | | | | | | | | | On 2006-03-08 Eric Sesterhenn wrote: converts drivers/net to kzalloc usage. Don Fry modified it to use netif_msg_drv. Tested ia32 and ppc64. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] pcnet32: Fix off-by-one in get_ringparamDon Fry2006-07-051-4/+4
| | | | | | | Fix off-by-one in pcnet32_get_ringparam Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] pcnet32: Use PCI_DEVICE macroDon Fry2006-07-051-7/+4
| | | | | | | | | | | | | Jon Mason wrote on Thu, 12 Jan 2006 17:07:49 -0600: This patch adds the PCI_DEVICE macro to the pcnet32 driver. This has been tested on my opteron with my "trident" adapter. Don Fry modified it slightly and tested on ia32 and ppc64. Signed-off-by: Jon Mason <jdmason@us.ibm.com> Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] pcnet32: Fix Section mismatch errorDon Fry2006-07-051-3/+2
| | | | | | | Fix Section mismatch error. Tested ia32 and ppc64. Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] irq-flags: drivers/net: Use the new IRQF_ constantsThomas Gleixner2006-07-021-1/+1
| | | | | | | | | | 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>
* [netdrvr] Remove long-unused bits from Becker template driversJeff Garzik2006-06-271-6/+0
| | | | | | | | | | | | | | | | | | Symbols such as PCI_USES_IO, PCI_ADDR0, etc. originated from Donald Becker's net driver template, but have been long unused. Remove. In a few drivers, this allows the further eliminate of the pci_flags (or just plain flags) member in the template driver probe structure. Most of this logic is simply open-coded in most drivers, since it never changes. Made a few other cleanups while I was in there, too: * constify, __devinitdata several PCI ID tables * replace table terminating entries such as "{0,}," and "{NULL}," with a more-clean "{ }". Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] pcnet32: remove incorrect pcnet32_free_ringDon Fry2006-05-271-2/+0
| | | | | | | | | | | | | During a code scan for another change I discovered that this call to pcnet32_free_ring must be removed. If the open fails due to a lack of memory all the ring structures are removed via the call to free_ring and a subsequent call to open will dereference a null pointer in pcnet32_init_ring. Please apply to 2.6.17. Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] Janitor: drivers/net/pcnet32: fix incorrect commentsLinas Vepstas2006-03-301-2/+2
| | | | | | | | | | | | The comments concerning how the pcnet32 ethernet device driver selects the MAC addr to use are incorrect. A recent patch (in the last 3 months) changed how the code worked, but did not change the comments. Side comment: the new behaviour is good; I've got a pcnet32 card which powers up with garbage in the CSR's, and a good MAC addr in the PROM. Signed-off-by: Linas Vepstas <linas@linas.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [netdrvr] pcnet32: other source formatting cleanupsJeff Garzik2006-03-211-174/+54
| | | | | | - undo some Lindent damage by indenting member names - remove history at top of .c file, this is stored in the kernel repo changelog (in greater detail, even).
* [netdrvr] pcnet32: LindentJeff Garzik2006-03-211-1999/+2156
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* [PATCH] pcnet32: support boards with multiple physDon Fry2006-03-211-24/+212
| | | | | | | | | | | | | | | | Boards with multiple PHYs were not being handled properly by the pcnet32 driver. This patch by Thomas Bogendoerfer with changes by me will allow Allied Telesyn 2700FTX and 2701FTX boards to use either the copper or the fiber interfaces. It has been tested on ia32 and ppc64 hardware. Philippe Seewer also tested and improved the patch. ethtool for pcnet32 already supports multiple phys. See also bugzilla bug 4219. Please apply to 2.6.16 Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* Massive net driver const-ification.Arjan van de Ven2006-03-041-3/+3
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* [PATCH] pcnet32: use MAC address from prom also on powerpcOlaf Hering2005-12-121-5/+0
| | | | | | | | | | | | | | | | | | | | | The CSR contains garbage after a coldboot on RS/6000. One some systems (like my 44p 270) the MAC address is all FF, on others (like my B50) it is ff:ff:ff:fd:ff:6b. It can eventually be fixed by loading pcnet32, set the interface into the UP state, rmmod pcnet32 and load it again. But this worked only on the 270. Only netbooting after a cold start provides the correct MAC address via prom and CSR. This makes it very unreliable. I dont know why the MAC is stored in two different places. Remove the special case for powerpc, which was added in early 2.4 development. Signed-off-by: Olaf Hering <olh@suse.de> drivers/net/pcnet32.c | 5 ----- 1 files changed, 5 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] pcnet32: Prevent hang with 79c976Don Fry2005-11-051-1/+5
| | | | | | | | | | | | Some boards using the 79c976 pcnet32 chip will hang the system if the ethtool --register-dump is performed with the device operational. The request to read bcr30 is retried by the PCI device infinitely without returning data, hanging the system. Tested ia32 and ppc64. Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] pcnet32: AT2700/2701 and Bugzilla 2699 & 4551Don Fry2005-11-051-7/+16
| | | | | | | | | | | This patch is a better fix for Allied Telesyn 2700/2701 FX boards than the change made in early January this year. It allows the user to select the speed/duplex via module_param, but if no selection is made, forces the speed to 100 FD. It fixes both Bugzilla bugs 2669 and 4551. Tested ia32 and ppc64 by myself, and by the originator of bug 2669. Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] pcnet32: show name of failing deviceDon Fry2005-11-051-21/+41
| | | | | | | | | | | Display the name eth%d or pci_name() of device which fails to allocate memory. When changing ring size via ethtool, it also releases the lock before returning on error. Added comment that the caller of pcnet32_alloc_ring must call pcnet32_free_ring on error, to avoid leak. Tested ia32 by forcing allocation errors. Signed-off-by: Don Fry <brazilnut@us.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] pcnet32: set min ring size to 4Hubert WS Lin2005-09-161-7/+12
| | | | | | | | | | | | | Don Fry reminded me that the pcnet32_loopback_test() asssumes the ring size is no less than 4. The minimum ring size was changed to 4 in pcnet32_set_ringparam() to allow the loopback test to work unchanged. - Set minimum ring size to 4 to allow loopback test to work unchanged - Moved variable init_block to first field in struct pcnet32_private Signed-off-by: Hubert WS Lin <wslin@tw.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] pcnet32: set_ringparam implementationHubert WS Lin2005-09-161-54/+209
| | | | | | | | | | | | | | | This patch implements the set_ringparam(), one of the ethtool operations, which allows changing tx/rx ring sizes via ethtool. - Changed memery allocation of tx/rx ring from static to dynamic - Implemented set_ringparam() - Tested on i386 and ppc64 Signed-off-by: Hubert WS Lin <wslin@tw.ibm.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] pcnet32: support ETHTOOL_GPERMADDRJohn W. Linville2005-09-141-1/+3
| | | | | | | Add support for ETHTOOL_GPERMADDR to pcnet32. Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [NET]: Remove gratuitous use of skb->tail in network drivers.David S. Miller2005-06-291-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many drivers use skb->tail unnecessarily. In these situations, the code roughly looks like: dev = dev_alloc_skb(...); [optional] skb_reserve(skb, ...); ... skb->tail ... But even if the skb_reserve() happens, skb->data equals skb->tail. So it doesn't make any sense to use anything other than skb->data in these cases. Another case was the s2io.c driver directly mucking with the skb->data and skb->tail pointers. It really just wanted to do an skb_reserve(), so that's what the code was changed to do instead. Another reason I'm making this change as it allows some SKB cleanups I have planned simpler to merge. In those cleanups, skb->head, skb->tail, and skb->end pointers are removed, and replaced with skb->head_room and skb->tail_room integers. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Jeff Garzik <jgarzik@pobox.com>
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