This workaround code performed software stripping instead of the
hardware which can do it much faster. None of the e1000e target
hardware has issues with this feature and should work fine. This
gives us some performance back on receive, and removes some
kludging stripping the 4 bytes.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Upon inspection the rx FIFO size calculation code was found to have
2 significant flaws: A superfluous minus sign resulting in the
wrong size to be used for jumbo frames on 82573 and ich9, as well
as that this code rewrote the read-only adapter->pba variable
resulting in different values at each run.
Without this patch jumbo's will work but performance will be
awkward since the TX size is not adequate for two whole frames.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Fix allocation and freeing of jumbo frames where several bugs
were recently introduced by cleanups after we forked this code
from e1000. This moves ps_pages to buffer_info where it really
belongs and makes it a dynamically allocated array. The penalty
is not that high since it's allocated outside of the buffer_info
struct anyway.
Without this patch all jumbo frames are completely broken and the
driver panics.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
interrupt handlers return a return value these days.
Also, kill always-true test and unneeded void* cast.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This fixes two things:
- stop calling write_lock_irq/write_unlock_irq which can turn modify
irq levels
- don't calling mmput when handing exceptions - since this might_sleep,
which does a rti, and leaves us in kernel space (irq15, rather
than irq5).
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* change #warning to a code comment
* add comment and special ifdef'd 64-bit code for a situation where
we must store a pointer into a CAPI field 'Data', which is fixed by
the interface at 32 bits.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: Karsten Keil <kkeil@suse.de>
Change the hrtimer printk "Switched to high resolution mode .." to
be KERN_DEBUG, rather than KERN_INFO. If users need to see this they
can pass "loglevel" or "debug" on the command line, or check dmesg.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
kernel/hrtimer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
This makes sure printk format strings contain no more than a single
line.
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This patch removes the unused
EXPORT_SYMBOL_GPL(tick_nohz_get_sleep_length).
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Clean up: fix a mixed sign comparison in sg_init_table() accidentally
introduced by commit d6ec0842. The sign of the loop index variable
should match the sign of the "nents" argument.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
Clean up: fix a mixed sign comparison in sg_last() accidentally
introduced by commit 70eb8040. The sign of the loop index variable
should match the sign of the "nents" argument.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
After turning on DEBUG_SG I hit a fail:
kernel BUG at include/linux/scatterlist.h:50!
sg_build_indirect
sg_build_reserve
sg_open
chrdev_open
__dentry_open
do_filp_open
do_sys_open
We should initialise the sg list when we allocate it in sg_build_sgat.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
After turning on DEBUG_SG I hit a fail:
kernel BUG at include/linux/scatterlist.h:50!
ata_qc_issue
ata_scsi_translate
ipr_queuecommand
scsi_dispatch_cmd
scsi_request_fn
elv_insert
blk_execute_rq_nowait
blk_execute_rq
sg_io
scsi_cmd_ioctl
cdrom_ioctl
sr_block_ioctl
blkdev_driver_ioctl
blkdev_ioctl
block_ioctl
do_ioctl
vfs_ioctl
sys_ioctl
sg_ioctl_trans
It looks like ata_sg_setup is working on an uninitialised sg table. Call
sg_init_table to initialise it before use.
Signed-off-by: Anton Blanchard <anton@samba.org>
Note: this patch will fix it, but you could also get away with just
doing the sg_init_table() once at qc creation time.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
blk_rq_map_sg doesn't initialize sg->dma_address/length to zero
anymore. Some low level drivers reuse sg lists without initializing so
IOMMUs might get non-zero dma_address/length. If map_sg fails, we need
pass the number of the mapped entries to gart_unmap_sg.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Since we are using the last entry in the list, clear any possible
termination bit that may have already been set. Pointed out by Rusty.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Fix for the error below while linking vmlinux:
[...]
drivers/built-in.o: In function `ipg_ioctl':
drivers/net/ipg.c:2148: undefined reference to `generic_mii_ioctl'
drivers/built-in.o: In function `ipg_get_settings':
drivers/net/ipg.c:2181: undefined reference to `mii_ethtool_gset'
drivers/built-in.o: In function `ipg_set_settings':
drivers/net/ipg.c:2193: undefined reference to `mii_ethtool_sset'
drivers/built-in.o: In function `ipg_nway_reset':
drivers/net/ipg.c:2205: undefined reference to `mii_nway_restart'
make: *** [.tmp_vmlinux1] Error 1
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Avuton Olrich <avuton@gmail.com>
Cc: Jesse Huang <jesse@icplus.com.tw>
Cc: Sorbica Shieh <sorbica@icplus.com.tw>
Disabling napi polling early is well enough.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Edward Hsu <edward_hsu@realtek.com.tw>
Don't call napi_disable if not configured and make sure that any
misuse of napi_xxx in future fails with a compile error.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Edward Hsu <edward_hsu@realtek.com.tw>
(pointer > 0) is deeply weird; (pointer >= 0) is even dumber...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
#include <scatterlist/scatterlist.h>
is an odd thing to do...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
struct device doesn't have ->dma; it's in struct expansion_card where
that struct device is embedded into.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hp_sdc_exit() mustn't be __exit since it's called from the
__init hp_sdc_register().
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
After the last patch that broke appletouch for powerbooks again I'd like
to take over maintainership of this driver to make sure it doesn't break
again in the future.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Most newer Acer laptops (from 2005 onwards) now ship with an extra Dollar
and Euro key either side of the 'Up' arrow. These cannot be mapped in the
traditional way, since they are not combination keys.
Signed-off-by: Carlos Corbacho <cathectic@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This patch adds the symbol "init_level4_pgt" to the vmcoreinfo data so
that makedumpfile (dump filtering command) supports x86_64 sparsemem
kernel of linux-2.6.24.
makedumpfile creates a small dumpfile by excluding unnecessary pages for
the analysis. It checks attributes in page structures and distinguishes
necessary pages and unnecessary ones. To check them, makedumpfile gets
the vmcoreinfo data which has the minimum debugging information only for
dump filtering.
For older x86_64 kernel (linux-2.6.23 or before), makedumpfile translates
the virtual address of page structure into physical address by subtracting
PAGE_OFFSET from virtual address, but this translation isn't effective for
linux-2.6.24 sparsemem kernel, because its page structures are in virtual
memmap area. makedumpfile should translate their virtual address by 4-levels
paging and it needs the symbol "init_level4_pgt".
Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
fix this warning:
arch/x86/kernel/early-quirks.c:40: warning: nvidia_hpet_check defined but not used
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Fix !CONFIG_SMP warning:
arch/x86/kernel/acpi/processor.c: In function arch_acpi_processor_init_pdc:
arch/x86/kernel/acpi/processor.c:65: warning: unused variable cpu
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The kernel only ever supports 1 version of the boot protocol
so there is no need to check the boot protocol revision to
see if a feature is supported.
Both x86 and x86_64 support the same boot protocol so we need
to implement the KEEP_SEGMENTS on x86_64 as well. It isn't
just paravirt bootloaders that could use this functionality.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Zachary Amsden <zach@vmware.com>
Cc: Andi Kleen <ak@suse.de>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
There were two problems. Firstly, someone forgot the struct keyword in
front of cpuinfo_x86, so I take it this wasn't even compile checked.
Secondly, the actual definition has this as a SHARED_ALIGNED, so the
definitions mismatch.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
KVM uses smp_call_function_mask and therefor need smp_ops to be exported.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This reverts commit 6442eea937.
The patch breaks smp_ops and needs to be reverted. The solution to
allow modular build of KVM is to export smp_ops instead.
Pointed-out-by: James Bottomley
<jejb> tglx, so write out 100 times "voyager is a useful architecture" ...
<tglx> yes, Sir
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
* git://git.infradead.org/mtd-2.6:
[JFFS2] Update MAINTAINERS entry -- the jffs-dev list is dead
[JFFS2] Prevent return of initialised variable in jffs2_init_acl_post()
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
mmc_spi: Fix mmc-over-spi regression
mmc: use common byte swap macros
mmc: fix cid and csd byte order
at91_mci: Fix bad reference
Auke Kok
Jeff Garzik
Michael Hennerich
Robin Getz
Michael Ellerman
Vegard Nossum
Adrian Bunk
Pavel Pisa
Chuck Lever
Anton Blanchard
FUJITA Tomonori
Jens Axboe
Javier Herrero
Linus Torvalds
Francois Romieu
Stephen Hemminger
Al Viro
Johannes Berg
Carlos Corbacho
Joshua J Bowman
Ken'ichi Ohmichi
Jeff Garzik
Eric W. Biederman
James Bottomley
Thomas Gleixner
David Woodhouse