Eilon Greenstein [Mon, 2 Mar 2009 07:59:56 +0000 (07:59 +0000)]
bnx2x: Calling tx disable unconditionally
On unload, the FW assumes that no packets will be sent after the driver sends
the FW stop command. To ensure that, the driver must always call
netif_tx_disable
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eilon Greenstein [Mon, 2 Mar 2009 07:59:52 +0000 (07:59 +0000)]
bnx2x: Using DMA engine
Using DMA engine (DMAE) to initialize large consecutive memories in the chip
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eilon Greenstein [Mon, 2 Mar 2009 07:59:48 +0000 (07:59 +0000)]
bnx2x: Missing module parameter description
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eilon Greenstein [Mon, 2 Mar 2009 07:59:45 +0000 (07:59 +0000)]
bnx2x: napi_poll budget check
Check the napi_poll budget only when updating it. Also add a comment to explain
the rmb
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eilon Greenstein [Mon, 2 Mar 2009 07:59:31 +0000 (07:59 +0000)]
bnx2x: Unlimited Tx interrupt work
The Tx interrupt is very short and there is no need to limit it to a budget
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eilon Greenstein [Mon, 2 Mar 2009 07:59:27 +0000 (07:59 +0000)]
bnx2x: Add rmb to read status block indices on load
Add rmb to read status block indices on load
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eilon Greenstein [Mon, 2 Mar 2009 07:59:24 +0000 (07:59 +0000)]
bnx2x: Reduce the likelihood of smb_mb
As the comment explains, this smb_mb is needed only if the queue is stopped
(which is unlikely) so the barrier can be moved to that location
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eilon Greenstein [Mon, 2 Mar 2009 07:59:20 +0000 (07:59 +0000)]
bnx2x: Misleading name
As noted by Ben Hutchings <bhutchings@solarflare.com>, these are the
capabilities offsets and not the ID itself
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eilon Greenstein [Mon, 2 Mar 2009 07:59:17 +0000 (07:59 +0000)]
bnx2x: Remove redundant smb_mb on unload
As noted by Ben Hutchings <bhutchings@solarflare.com>, these smb_mb are not
needed
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Russell King [Tue, 3 Mar 2009 06:29:37 +0000 (22:29 -0800)]
OMAP: enable smc911x support for LDP platform
The following patch enables SMC911x support to work on the OMAP LDP
board. Although the SMC911x driver will eventually be obsoleted, the
smsc911x patches are rather invasive for the -rc kernels.
Rather than risk destablising smsc911x, this simpler patch is preferred
to allow the network interface to work.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Yongjun [Mon, 2 Mar 2009 06:46:51 +0000 (06:46 +0000)]
sctp: fix kernel panic with ERROR chunk containing too many error causes
If ERROR chunk is received with too many error causes in ESTABLISHED
state, the kernel get panic.
This is because sctp limit the max length of cmds to 14, but while
ERROR chunk is received, one error cause will add around 2 cmds by
sctp_add_cmd_sf(). So many error causes will fill the limit of cmds
and panic.
This patch fixed the problem.
This bug can be test by SCTP Conformance Test Suite
<http://networktest.sourceforge.net/>.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Mon, 2 Mar 2009 06:46:50 +0000 (06:46 +0000)]
sctp: fix crash during module unload
An extra list_del() during the module load failure and unload
resulted in a crash with a list corruption. Now sctp can
be unloaded again.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Dillow [Tue, 3 Mar 2009 06:15:09 +0000 (22:15 -0800)]
typhoon: repair firmware loading
The conversion to avoid using pci_alloc_consistent() broke the firmware
load process, as well as added an order-4 kmalloc and doubled the memory
usage of the firmware image. Go back to loading a page at a time.
Also, since the user can now give us utter garbage for firmware, do a
cursory validation so we don't try to load just anything.
Signed-off-by: David Dillow <dave@thedillows.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 3 Mar 2009 00:23:33 +0000 (16:23 -0800)]
Revert "menu: fix embedded menu snafu"
This reverts commit
155b25bcc28631a5b5230191aa3f56c40dfffa3f, which was
totally wrong - the "embedded" options still exists (very much so) even
on non-embedded platforms.
It's just that we don't bother with actually asking about them when
we're not embedded, we just take their default values (which is usually
'y' - the options add features that may not be worth it in a constrained
environment).
Noticed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 3 Mar 2009 00:11:36 +0000 (16:11 -0800)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/i915: Fix use-before-null-check in i915_irq_emit().
drm: Avoid client deadlocks when the master disappears.
drm: Wake up all lock waiters when the master disappears.
drm: Don't return ERESTARTSYS to user-space.
Jesse Brandeburg [Tue, 3 Mar 2009 00:03:21 +0000 (16:03 -0800)]
e1000: fix unmap bug
This is in reference to the issue shown in kerneloops (search e1000 unmap)
The e1000 transmit code was calling pci_unmap_page on dma handles that it
might have called pci_map_single on.
Same bug as e1000e
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jesse Brandeburg [Tue, 3 Mar 2009 00:02:53 +0000 (16:02 -0800)]
e1000e: fix unmap bug
This is in reference to https://bugzilla.redhat.com/show_bug.cgi?id=484494
Also addresses issue show in kerneloops
The e1000e transmit code was calling pci_unmap_page on dma handles that it
might have called pci_map_single on.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck [Tue, 3 Mar 2009 00:01:53 +0000 (16:01 -0800)]
igb: remove skb_orphan calls
Remove skb_orphan call from igb driver as it can cause multiple issues due
to the fact that it is calling the desctructor and removing the skb from
the socket prior to transmission.
The call was added to improve performance but did so by allowing the skb to
be removed from the socket which gave the socket more window space to
transmit. The performance gain is not worth the extra problems that this
kind of workaround can introduce as this could lead to a potential DoS if a
UDP stream decided to monopolize the transmit path.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Anholt [Wed, 25 Feb 2009 06:14:12 +0000 (22:14 -0800)]
drm/i915: Fix use-before-null-check in i915_irq_emit().
This could be triggered by a client asking to emit an irq when the device
wasn't initialized.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Thomas Hellstrom [Mon, 2 Mar 2009 10:10:56 +0000 (11:10 +0100)]
drm: Avoid client deadlocks when the master disappears.
This is done by
1) Wake up lock waiters when we close the master file descriptor.
Not when the master structure is removed, since the latter
requires the waiters themselves to release the refcount on the
master structure -> Deadlock.
2) Send a SIGTERM to all clients waiting for the lock.
Normally these clients will get a SIGPIPE when the X server dies,
but clients may also spin trying to grab the DRM lock, without
getting any sort of notification.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Thomas Hellstrom [Mon, 2 Mar 2009 10:10:55 +0000 (11:10 +0100)]
drm: Wake up all lock waiters when the master disappears.
Currently only one waiter is woken up, leaving other waiters
hanging waiting for the DRM lock.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Thomas Hellstrom [Mon, 2 Mar 2009 10:10:54 +0000 (11:10 +0100)]
drm: Don't return ERESTARTSYS to user-space.
That return code is for in-kernel use only.
Use EINTR instead.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Randy Dunlap [Mon, 2 Mar 2009 22:14:06 +0000 (14:14 -0800)]
menu: fix embedded menu snafu
The COMPAT_BRK kconfig symbol does not depend on EMBEDDED, but it is in
the midst of the EMBEDDED menu symbols, so it mucks up the EMBEDDED
menu. Fix by moving it to just after all of the EMBEDDED menu symbols.
Also, surround all of the EMBEDDED symbols with "if EMBEDDED"/"endif" so
that this EMBEDDED block is clearer.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 2 Mar 2009 23:48:00 +0000 (15:48 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
sdhci: Add NO_BUSY_IRQ quirk for Marvell CAFE host chip
sdhci: Add quirk for controllers with no end-of-busy IRQ
Linus Torvalds [Mon, 2 Mar 2009 23:47:19 +0000 (15:47 -0800)]
Merge branch 'fix/hda' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Add probe_mask default for Toshiba laptop with ALC268
ALSA: hda - Add quirk for new HP xw series
ALSA: hda - Fix digital mic on dell-m4-1 and dell-m4-3
Linus Torvalds [Mon, 2 Mar 2009 23:47:01 +0000 (15:47 -0800)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
fix warning in io_mapping_map_wc()
x86: i915 needs pgprot_writecombine() and is_io_mapping_possible()
Linus Torvalds [Mon, 2 Mar 2009 23:46:09 +0000 (15:46 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (29 commits)
zaurus: add usb id for motomagx phones
usbnet: make usbnet_get_link() fall back to ethtool_op_get_link()
veth: Fix carrier detect
cdc_ether: add usb id for Ericsson F3507g
r8169: read MAC address from EEPROM on init (2nd attempt)
tcp: fix retrans_out leaks
net headers: export dcbnl.h
net headers: cleanup dcbnl.h
netpoll: Add drop checks to all entry points
gianfar: Do right check on num_txbdfree
pkt_sched: sch_drr: Fix oops in drr_change_class.
b44: Disable device on shutdown
b44: Unconditionally enable interrupt routing on reset
net: fix hp-plus build error
libertas: fix misuse of netdev_priv() and dev->ml_priv
ipv6: don't use tw net when accounting for recycled tw
asix: new device ids
tcp_scalable: Update malformed & dead url
netfilter: xt_recent: fix proc-file addition/removal of IPv4 addresses
netxen: handle pci bar 0 mapping failure
...
Linus Torvalds [Mon, 2 Mar 2009 23:44:08 +0000 (15:44 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
selinux: Fix a panic in selinux_netlbl_inode_permission()
Karsten Keil [Sun, 1 Mar 2009 17:04:53 +0000 (18:04 +0100)]
Change email address
Since I will loose the old address soon, please change it.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 2 Mar 2009 23:43:03 +0000 (15:43 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elantech - touchpad driver miss-recognising logitech mice
Input: synaptics - ensure we reset the device on resume
Input: usbtouchscreen - fix eGalax HID ignoring
Input: ambakmi - fix timeout handling in amba_kmi_write()
Input: pxa930_trkball - fix write timeout handling
Input: struct device - replace bus_id with dev_name(), dev_set_name()
Input: bf54x-keys - fix debounce time validation
Input: spitzkbd - mark probe function as __devinit
Input: omap-keypad - mark probe function as __devinit
Input: corgi_ts - mark probe function as __devinit
Input: corgikbd - mark probe function as __devinit
Input: uvc - the button on the camera is KEY_CAMERA
Input: psmouse - make MOUSE_PS2_LIFEBOOK depend on X86
Input: atkbd - make forced_release_keys[] static
Input: usbtouchscreen - allow reporting calibrated data
Linus Torvalds [Mon, 2 Mar 2009 23:42:26 +0000 (15:42 -0800)]
Merge branch 'for_linus' of git://git./linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: don't call jbd2_journal_force_commit_nested without journal
ext4: Reorder fs/Makefile so that ext2 root fs's are mounted using ext2
ext4: Remove duplicate call to ext4_commit_super() in ext4_freeze()
Linus Torvalds [Mon, 2 Mar 2009 23:41:59 +0000 (15:41 -0800)]
Merge git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] mpt: fix disable lsi sas to use msi as default
[SCSI] fix ABORTED_COMMAND looping forever problem
[SCSI] sd: revive sd_index_lock
[SCSI] cxgb3i: update the driver version to 1.0.1
[SCSI] cxgb3i: Fix spelling errors in documentation
[SCSI] cxgb3i: added missing include in cxgb3i_ddp.h
[SCSI] cxgb3i: Outgoing pdus need to observe skb's MAX_SKB_FRAGS
[SCSI] cxgb3i: added per-task data to track transmit progress
[SCSI] cxgb3i: transmit work-request fixes
[SCSI] hptiop: Add new PCI device ID
Roland McGrath [Sat, 28 Feb 2009 07:25:54 +0000 (23:25 -0800)]
x86-64: seccomp: fix 32/64 syscall hole
On x86-64, a 32-bit process (TIF_IA32) can switch to 64-bit mode with
ljmp, and then use the "syscall" instruction to make a 64-bit system
call. A 64-bit process make a 32-bit system call with int $0x80.
In both these cases under CONFIG_SECCOMP=y, secure_computing() will use
the wrong system call number table. The fix is simple: test TS_COMPAT
instead of TIF_IA32. Here is an example exploit:
/* test case for seccomp circumvention on x86-64
There are two failure modes: compile with -m64 or compile with -m32.
The -m64 case is the worst one, because it does "chmod 777 ." (could
be any chmod call). The -m32 case demonstrates it was able to do
stat(), which can glean information but not harm anything directly.
A buggy kernel will let the test do something, print, and exit 1; a
fixed kernel will make it exit with SIGKILL before it does anything.
*/
#define _GNU_SOURCE
#include <assert.h>
#include <inttypes.h>
#include <stdio.h>
#include <linux/prctl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <asm/unistd.h>
int
main (int argc, char **argv)
{
char buf[100];
static const char dot[] = ".";
long ret;
unsigned st[24];
if (prctl (PR_SET_SECCOMP, 1, 0, 0, 0) != 0)
perror ("prctl(PR_SET_SECCOMP) -- not compiled into kernel?");
#ifdef __x86_64__
assert ((uintptr_t) dot < (1UL << 32));
asm ("int $0x80 # %0 <- %1(%2 %3)"
: "=a" (ret) : "0" (15), "b" (dot), "c" (0777));
ret = snprintf (buf, sizeof buf,
"result %ld (check mode on .!)\n", ret);
#elif defined __i386__
asm (".code32\n"
"pushl %%cs\n"
"pushl $2f\n"
"ljmpl $0x33, $1f\n"
".code64\n"
"1: syscall # %0 <- %1(%2 %3)\n"
"lretl\n"
".code32\n"
"2:"
: "=a" (ret) : "0" (4), "D" (dot), "S" (&st));
if (ret == 0)
ret = snprintf (buf, sizeof buf,
"stat . -> st_uid=%u\n", st[7]);
else
ret = snprintf (buf, sizeof buf, "result %ld\n", ret);
#else
# error "not this one"
#endif
write (1, buf, ret);
syscall (__NR_exit, 1);
return 2;
}
Signed-off-by: Roland McGrath <roland@redhat.com>
[ I don't know if anybody actually uses seccomp, but it's enabled in
at least both Fedora and SuSE kernels, so maybe somebody is. - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roland McGrath [Sat, 28 Feb 2009 03:03:24 +0000 (19:03 -0800)]
x86-64: syscall-audit: fix 32/64 syscall hole
On x86-64, a 32-bit process (TIF_IA32) can switch to 64-bit mode with
ljmp, and then use the "syscall" instruction to make a 64-bit system
call. A 64-bit process make a 32-bit system call with int $0x80.
In both these cases, audit_syscall_entry() will use the wrong system
call number table and the wrong system call argument registers. This
could be used to circumvent a syscall audit configuration that filters
based on the syscall numbers or argument details.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Mon, 2 Mar 2009 20:48:20 +0000 (21:48 +0100)]
sdhci: Add NO_BUSY_IRQ quirk for Marvell CAFE host chip
As described here: http://lkml.org/lkml/2009/2/20/265
The CAFE chip is broken due to commit
e809517f6fa5803a5a1cd5602.
Anton added a quirk here: http://lkml.org/lkml/2009/2/20/279 that fixes
CAFE's problem. This adds the quirk for CAFE.
Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Ben Dooks [Fri, 20 Feb 2009 17:33:08 +0000 (20:33 +0300)]
sdhci: Add quirk for controllers with no end-of-busy IRQ
The Samsung SDHCI (and FSL eSDHC) controller block seems to fail
to generate an INT_DATA_END after the transfer has completed and
the bus busy state finished.
Changes in
e809517f6fa5803a5a1cd56026f0e2190fc13d5c to use the
new busy method are the cause of the behaviour change.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Randy Dunlap [Mon, 2 Mar 2009 11:15:58 +0000 (03:15 -0800)]
skbuff.h: fix timestamps kernel-doc
Fix skbuff.h kernel-doc for timestamps: must include "struct" keyword,
otherwise there are kernel-doc errors:
Error(linux-next-
20090227//include/linux/skbuff.h:161): cannot understand prototype: 'struct skb_shared_hwtstamps '
Error(linux-next-
20090227//include/linux/skbuff.h:177): cannot understand prototype: 'union skb_shared_tx '
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 27 Feb 2009 13:08:18 +0000 (13:08 +0000)]
sfc: Add support for SFN4112F SFP+ reference design
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 27 Feb 2009 13:08:03 +0000 (13:08 +0000)]
sfc: Clean up LED control
Reinitialise LEDs after overriding them for identification.
Rename set_fault_led method to set_id_led since we always use it for
NIC identification and not faults.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 27 Feb 2009 13:07:42 +0000 (13:07 +0000)]
sfc: Delete unused efx_blinker::led_num field
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 27 Feb 2009 13:07:33 +0000 (13:07 +0000)]
sfc: Add support for QT2025C PHY
This is a new PHY supporting SFP+ modules, used in the SFN4112F
reference design. It is similar to the QT2022C2 and shares much of
its support code.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 27 Feb 2009 13:07:15 +0000 (13:07 +0000)]
sfc: Fix reporting of PHY id
Shuffle bits of the OUI into the conventional written order.
Replace PHY id component macros with functions.
Zero-pad PHY id components in log messages.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 27 Feb 2009 13:06:58 +0000 (13:06 +0000)]
sfc: Remove "XFP" from log messages that are not specific to XFP
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 27 Feb 2009 13:06:45 +0000 (13:06 +0000)]
sfc: SFT9001/SFN4111T: Check PHY boot status during board initialisation
During SFN4111T initialisation, check whether the PHY boot status
indicates a bad firmware checksum. If so, prepare to reflash rather
than continuing with normal initialisation.
Remove redundant PHY boot status check from tenxpress_phy_init().
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 27 Feb 2009 13:06:12 +0000 (13:06 +0000)]
sfc: Fix test for MDIO read failure
Commit
27dd2caca4eabe7c13a052b7456495ba75535e6a changed
mdio_clause45_check_mmds() to read both DEVS0 and DEVS1 registers and
to combine their values into an unsigned 32-bit mask. This made the
following test for a negative (failure) value useless. Fix it to
check whether either read failed.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Fri, 27 Feb 2009 13:04:07 +0000 (13:04 +0000)]
sfc: SFT9001: Include non-breaking cable diagnostics in online self-tests
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Inaky Perez-Gonzalez [Sat, 28 Feb 2009 23:42:54 +0000 (23:42 +0000)]
wimax/i2400m: implement RX reorder support
Allow the device to give the driver RX data with reorder information.
When that is done, the device will indicate the driver if a packet has
to be held in a (sorted) queue. It will also tell the driver when held
packets have to be released to the OS.
This is done to improve the WiMAX-protocol level retransmission
support when missing frames are detected.
The code docs provide details about the implementation.
In general, this just hooks into the RX path in rx.c; if a packet with
the reorder bit in the RX header is detected, the reorder information
in the header is extracted and one of the four main reorder operations
are executed. In one case (queue) no packet will be delivered to the
networking stack, just queued, whereas in the others (reset, update_ws
and queue_update_ws), queued packet might be delivered depending on
the window start for the specific queue.
The modifications to files other than rx.c are:
- control.c: during device initialization, enable reordering support
if the rx_reorder_disabled module parameter is not enabled
- driver.c: expose a rx_reorder_disable module parameter and call
i2400m_rx_setup/release() to initialize/shutdown RX reorder
support.
- i2400m.h: introduce members in 'struct i2400m' needed for
implementing reorder support.
- linux/i2400m.h: introduce TLVs, commands and constant definitions
related to RX reorder
Last but not least, the rx reorder code includes an small circular log
where the last N reorder operations are recorded to be displayed in
case of inconsistency. Otherwise diagnosing issues would be almost
impossible.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Harvey Harrison [Sat, 28 Feb 2009 23:42:53 +0000 (23:42 +0000)]
wimax: replace uses of __constant_{endian}
Base versions handle constant folding now.
Edited by Inaky to fix conflicts due to changes in netdev.c
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Inaky Perez-Gonzalez [Sat, 28 Feb 2009 23:42:52 +0000 (23:42 +0000)]
wimax/i2400m: support extended data RX protocol (no need to reallocate skbs)
Newer i2400m firmwares (>= v1.4) extend the data RX protocol so that
each packet has a 16 byte header. This header is mainly used to
implement host reordeing (which is addressed in later commits).
However, this header also allows us to overwrite it (once data has
been extracted) with an Ethernet header and deliver to the networking
stack without having to reallocate the skb (as it happened in fw <=
v1.3) to make room for it.
- control.c: indicate the device [dev_initialize()] that the driver
wants to use the extended data RX protocol. Also involves adding the
definition of the needed data types in include/linux/wimax/i2400m.h.
- rx.c: handle the new payload type for the extended RX data
protocol. Prepares the skb for delivery to
netdev.c:i2400m_net_erx().
- netdev.c: Introduce i2400m_net_erx() that adds the fake ethernet
address to a prepared skb and delivers it to the networking
stack.
- cleanup: in most instances in rx.c, the variable 'single' was
renamed to 'single_last' for it better conveys its meaning.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Kay Sievers [Sat, 28 Feb 2009 23:42:51 +0000 (23:42 +0000)]
wimax: struct device - replace bus_id with dev_name(), dev_set_name()
Cc: inaky.perez-gonzalez@intel.com
Cc: linux-wimax@intel.com
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Inaky Perez-Gonzalez [Sat, 28 Feb 2009 23:42:50 +0000 (23:42 +0000)]
wimax/i2400m: allow control of the base-station idle mode timeout
For power saving reasons, WiMAX links can be put in idle mode while
connected after a certain time of the link not being used for tx or
rx. In this mode, the device pages the base-station regularly and when
data is ready to be transmitted, the link is revived.
This patch allows the user to control the time the device has to be
idle before it decides to go to idle mode from a sysfs
interace.
It also updates the initialization code to acknowledge the module
variable 'idle_mode_disabled' when the firmware is a newer version
(upcoming 1.4 vs 2.6.29's v1.3).
The method for setting the idle mode timeout in the older firmwares is
much more limited and can be only done at initialization time. Thus,
the sysfs file will return -ENOSYS on older ones.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Inaky Perez-Gonzalez [Sat, 28 Feb 2009 23:42:49 +0000 (23:42 +0000)]
wimax/i2400m: firmware_check() encodes the firmware version in i2400m->fw_version
Upcoming modifications will need to test for the running firmware
version before activating a feature or not. This is helpful to
implement backward compatibility with older firmware versions.
Modify i2400m_firmware_check() to encode in i2400m->fw_version the
major and minor version numbers of the firmware interface.
As well, move the call to be done as the very first operation once we
have communication with the device during probe() [in
__i2400m_dev_start()]. This is needed so any operation that is
executed afterwards can determine which fw version it is talking to.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Inaky Perez-Gonzalez [Sat, 28 Feb 2009 23:42:48 +0000 (23:42 +0000)]
wimax/i2400m: drop support for deprecated major fw interface, add for new minor
Firmware interface version 8.x.x has long been deprecated and is no
longer supported (nor available, as it is a preproduction firmware),
so it can be safely dropped.
Add support for firmware interface v9.2.x (current is 9.1.x). Firmware
version 9.2.x is backwards compatible with 9.1.x; new features are
enabled if switches are pressed to turn them on. Forthcoming commits
to the driver will start pressing those switches when the firmware
interface supports it.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Inaky Perez-Gonzalez [Sat, 28 Feb 2009 23:42:47 +0000 (23:42 +0000)]
wimax/i2400m: add the ability to fallback to other firmware files if the default is not there
In order to support backwards compatibility with older firmwares when
a driver is updated by a new kernel release, the i2400m bus drivers
can declare a list of firmware files they can work with (in general
these will be each a different version). The firmware loader will try
them in sequence until one loads.
Thus, if a user doesn't have the latest and greatest firmware that a
newly installed kernel would require, the driver would fall back to
the firmware from a previous release.
To support this, the i2400m->bus_fw_name is changed to be a NULL
terminated array firmware file names (and renamed to bus_fw_names) and
we add a new entry (i2400m->fw_name) that points to the name of the
firmware being currently used. All code that needs to print the
firmware file name uses i2400m->fw_name instead of the old
i2400m->bus_fw_name.
The code in i2400m_dev_bootstrap() that loads the firmware is changed
with an iterator over the firmware file name list that tries to load
each form user space, using the first one that succeeds in
request_firmware() (and thus stopping the iteration).
The USB and SDIO bus drivers are updated to take advantage of this and
reflect which firmwares they support.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gerrit Renker [Fri, 27 Feb 2009 22:38:29 +0000 (22:38 +0000)]
dccp: Do not let initial option overhead shrink the MPS
This fixes a problem caused by the overlap of the connection-setup and
established-state phases of DCCP connections.
During connection setup, the client retransmits Confirm Feature-Negotiation
options until a response from the server signals that it can move from the
half-established PARTOPEN into the OPEN state, whereupon the connection is
fully established on both ends (RFC 4340, 8.1.5).
However, since the client may already send data while it is in the PARTOPEN
state, consequences arise for the Maximum Packet Size: the problem is that the
initial option overhead is much higher than for the subsequent established
phase, as it involves potentially many variable-length list-type options
(server-priority options, RFC 4340, 6.4).
Applying the standard MPS is insufficient here: especially with larger
payloads this can lead to annoying, counter-intuitive EMSGSIZE errors.
On the other hand, reducing the MPS available for the established phase by
the added initial overhead is highly wasteful and inefficient.
The solution chosen therefore is a two-phase strategy:
If the payload length of the DataAck in PARTOPEN is too large, an Ack is sent
to carry the options, and the feature-negotiation list is then flushed.
This means that the server gets two Acks for one Response. If both Acks get
lost, it is probably better to restart the connection anyway and devising yet
another special-case does not seem worth the extra complexity.
The result is a higher utilisation of the available packet space for the data
transmission phase (established state) of a connection.
The patch (over-)estimates the initial overhead to be 32*4 bytes -- commonly
seen values were around 90 bytes for initial feature-negotiation options.
It uses sizeof(u32) to mean "aligned units of 4 bytes".
For consistency, another use of 4-byte alignment is adapted.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gerrit Renker [Fri, 27 Feb 2009 22:38:28 +0000 (22:38 +0000)]
dccp: Minimise header option overhead in setting the MPS
This patch resolves a long-standing FIXME to dynamically update the Maximum
Packet Size depending on actual options usage.
It uses the flags set by the feature-negotiation infrastructure to compute
the required header option size.
Most options are fixed-size, a notable exception are Ack Vectors (required
currently only by CCID-2). These can have any length between 3 and 1020
bytes. As a result of testing, 16 bytes (2 bytes for type/length plus 14 Ack
Vector cells) have been found to be sufficient for loss-free situations.
There are currently no CCID-specific header options which may appear on data
packets, thus it is not necessary to define a corresponding CCID field as
suggested in the old comment.
Further changes:
----------------
Adjusted the type of 'cur_mps' to match the unsigned return type of the
function.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:42 +0000 (04:44 +0000)]
tcp: get rid of two unnecessary u16s in TCP skb flags copying
I guess these fields were one day 16-bit in the struct but
nowadays they're just using 8 bits anyway.
This is just a precaution, didn't result any change in my
case but who knows what all those varying gcc versions &
options do. I've been told that 16-bit is not so nice with
some cpus.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:41 +0000 (04:44 +0000)]
tcp: in sendmsg/pages open code the real goto target
copied was assigned zero right before the goto, so if (copied)
cannot ever be true.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:38 +0000 (04:44 +0000)]
tcp: kill eff_sacks "cache", the sole user can calculate itself
Also fixes insignificant bug that would cause sending of stale
SACK block (would occur in some corner cases).
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:37 +0000 (04:44 +0000)]
tcp: add helper for AI algorithm
It seems that implementation in yeah was inconsistent to what
other did as it would increase cwnd one ack earlier than the
others do.
Size benefits:
bictcp_cong_avoid | -36
tcp_cong_avoid_ai | +52
bictcp_cong_avoid | -34
tcp_scalable_cong_avoid | -36
tcp_veno_cong_avoid | -12
tcp_yeah_cong_avoid | -38
= -104 bytes total
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:36 +0000 (04:44 +0000)]
htcp: merge icsk_ca_state compare
Similar to what is done elsewhere in TCP code when double
state checks are being done.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:35 +0000 (04:44 +0000)]
tcp: drop unnecessary local var in collapse
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:34 +0000 (04:44 +0000)]
tcp: cleanup ca_state mess in tcp_timer
Redundant checks made indentation impossible to follow.
However, it might be useful to make this ca_state+is_sack
indexed array.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:33 +0000 (04:44 +0000)]
tcp: separate timeout marking loop to it's own function
Some comment about its current state added. So far I have
seen very few cases where the thing is actually useful,
usually just marginally (though admittedly I don't usually
see top of window losses where it seems possible that there
could be some gain), instead, more often the cases suffer
from L-marking spike which is certainly not desirable
(I'll bury improving it to my todo list, but on a low
prio position).
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:32 +0000 (04:44 +0000)]
tcp: remove redundant code from tcp_mark_lost_retrans
Arnd Hannemann <hannemann@nets.rwth-aachen.de> noticed and was
puzzled by the fact that !tcp_is_fack(tp) leads to early return
near the beginning and the later on tcp_is_fack(tp) was still
used in an if condition. The later check was a left-over from
RFC3517 SACK stuff (== !tcp_is_fack(tp) behavior nowadays) as
there wasn't clear way how to handle this particular check
cheaply in the spirit of RFC3517 (using only SACK blocks, not
holes + SACK blocks as with FACK). I sort of left it there as
a reminder but since it's confusing other people just remove
it and comment the missing-feature stuff instead.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Cc: Arnd Hannemann <hannemann@nets.rwth-aachen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:31 +0000 (04:44 +0000)]
tcp: fix corner case issue in segmentation during rexmitting
If cur_mss grew very recently so that the previously G/TSOed skb
now fits well into a single segment it would get send up in
parts unless we calculate # of segments again. This corner-case
could happen eg. after mtu probe completes or less than
previously sack blocks are required for the opposite direction.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:30 +0000 (04:44 +0000)]
tcp: Don't clear hints when tcp_fragmenting
1) We didn't remove any skbs, so no need to handle stale refs.
2) scoreboard_skb_hint is trivial, no timestamps were changed
so no need to clear that one
3) lost_skb_hint needs tweaking similar to that of
tcp_sacktag_one().
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:29 +0000 (04:44 +0000)]
tcp: deferring in middle of queue makes very little sense
If skb can be sent right away, we certainly should do that
if it's in the middle of the queue because it won't get
more data into it.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:28 +0000 (04:44 +0000)]
tcp: fix lost_cnt_hint miscounts
It is possible that lost_cnt_hint gets underflow in
tcp_clean_rtx_queue because the cumulative ACK can cover
the segment where lost_skb_hint points to only partially,
which means that the hint is not cleared, opposite to what
my (earlier) comment claimed.
Also I don't agree what I ended up writing about non-trivial
case there to be what I intented to say. It was not supposed
to happen that the hint won't get cleared and we underflow
in any scenario.
In general, this is quite hard to trigger in practice.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sat, 28 Feb 2009 04:44:27 +0000 (04:44 +0000)]
tcp: don't backtrack to sacked skbs
Backtracking to sacked skbs is a horrible performance killer
since the hint cannot be advanced successfully past them...
...And it's totally unnecessary too.
In theory this is 2.6.27..28 regression but I doubt anybody
can make .28 to have worse performance because of other TCP
improvements.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guo-Fu Tseng [Mon, 2 Mar 2009 09:55:15 +0000 (01:55 -0800)]
jme: Advance version number after previous changes
From: Guo-Fu Tseng <cooldavid@cooldavid.org>
Advance version number after previous changes.
Sorry for not come along with previous patch series.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 2 Mar 2009 09:53:03 +0000 (01:53 -0800)]
typhoon: Add missing firmware copy.
Noticed by David Dillow.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 2 Mar 2009 09:49:28 +0000 (01:49 -0800)]
rds: Fix build on powerpc.
As reported by Stephen Rothwell.
> Today's linux-next build (powerpc allyesconfig) failed like this:
>
> net/rds/cong.c: In function 'rds_cong_set_bit':
> net/rds/cong.c:284: error: implicit declaration of function 'generic___set_le_bit'
> net/rds/cong.c: In function 'rds_cong_clear_bit':
> net/rds/cong.c:298: error: implicit declaration of function 'generic___clear_le_bit'
> net/rds/cong.c: In function 'rds_cong_test_bit':
> net/rds/cong.c:309: error: implicit declaration of function 'generic_test_le_bit'
Signed-off-by: David S. Miller <davem@davemloft.net>
Pekka Paalanen [Tue, 24 Feb 2009 19:44:15 +0000 (21:44 +0200)]
x86 mmiotrace: fix race with release_kmmio_fault_page()
There was a theoretical possibility to a race between arming a page in
post_kmmio_handler() and disarming the page in
release_kmmio_fault_page():
cpu0 cpu1
------------------------------------------------------------------
mmiotrace shutdown
enter release_kmmio_fault_page
fault on the page
disarm the page
disarm the page
handle the MMIO access
re-arm the page
put the page on release list
remove_kmmio_fault_pages()
fault on the page
page not known to mmiotrace
fall back to do_page_fault()
*KABOOM*
(This scenario also shows the double disarm case which is allowed.)
Fixed by acquiring kmmio_lock in post_kmmio_handler() and checking
if the page is being released from mmiotrace.
Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Stuart Bennett <stuart@freedesktop.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Stuart Bennett [Thu, 5 Feb 2009 11:02:02 +0000 (11:02 +0000)]
x86 mmiotrace: improve handling of secondary faults
Upgrade some kmmio.c debug messages to warnings.
Allow secondary faults on probed pages to fall through, and only log
secondary faults that are not due to non-present pages.
Patch edited by Pekka Paalanen.
Signed-off-by: Stuart Bennett <stuart@freedesktop.org>
Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Pekka Paalanen [Sun, 1 Mar 2009 14:12:48 +0000 (16:12 +0200)]
x86 mmiotrace: split set_page_presence()
From
36772dcb6ffbbb68254cbfc379a103acd2fbfefc Mon Sep 17 00:00:00 2001
From: Pekka Paalanen <pq@iki.fi>
Date: Sat, 28 Feb 2009 21:34:59 +0200
Split set_page_presence() in kmmio.c into two more functions set_pmd_presence()
and set_pte_presence(). Purely code reorganization, no functional changes.
Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Stuart Bennett <stuart@freedesktop.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Pekka Paalanen [Sun, 1 Mar 2009 14:11:58 +0000 (16:11 +0200)]
x86 mmiotrace: fix save/restore page table state
From
baa99e2b32449ec7bf147c234adfa444caecac8a Mon Sep 17 00:00:00 2001
From: Pekka Paalanen <pq@iki.fi>
Date: Sun, 22 Feb 2009 20:02:43 +0200
Blindly setting _PAGE_PRESENT in disarm_kmmio_fault_page() overlooks the
possibility, that the page was not present when it was armed.
Make arm_kmmio_fault_page() store the previous page presence in struct
kmmio_fault_page and use it on disarm.
This patch was originally written by Stuart Bennett, but Pekka Paalanen
rewrote it a little different.
Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Stuart Bennett <stuart@freedesktop.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Stuart Bennett [Fri, 30 Jan 2009 17:38:59 +0000 (17:38 +0000)]
x86 mmiotrace: WARN_ONCE if dis/arming a page fails
Print a full warning once, if arming or disarming a page fails.
Also, if initial arming fails, do not handle the page further. This
avoids the possibility of a page failing to arm and then later claiming
to have handled any fault on that page.
WARN_ONCE added by Pekka Paalanen.
Signed-off-by: Stuart Bennett <stuart@freedesktop.org>
Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Pekka Paalanen [Sun, 1 Mar 2009 14:10:08 +0000 (16:10 +0200)]
x86: add far read test to testmmiotrace
Apparently pages far into an ioremapped region might not actually be
mapped during ioremap(). Add an optional read test to try to trigger a
multiply faulting MMIO access. Also add more messages to the kernel log
to help debugging.
This patch is based on a patch suggested by
Stuart Bennett <stuart@freedesktop.org>
who discovered bugs in mmiotrace related to normal kernel space faults.
Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Stuart Bennett <stuart@freedesktop.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Pekka Paalanen [Sun, 1 Mar 2009 14:09:14 +0000 (16:09 +0200)]
x86: count errors in testmmiotrace.ko
Check the read values against the written values in the MMIO read/write
test. This test shows if the given MMIO test area really works as
memory, which is a prerequisite for a successful mmiotrace test.
Signed-off-by: Pekka Paalanen <pq@iki.fi>
Cc: Stuart Bennett <stuart@freedesktop.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Pallipadi, Venkatesh [Sun, 1 Mar 2009 16:53:27 +0000 (08:53 -0800)]
fix warning in io_mapping_map_wc()
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Takashi Iwai [Sun, 1 Mar 2009 09:55:44 +0000 (10:55 +0100)]
ALSA: hda - Add probe_mask default for Toshiba laptop with ALC268
Some Toshiba laptops have another ALC268 codec on slot#3 that conflicts
with the primary codec. The codec#3 is for the digital I/O, and should
be fixed by the driver, but it'd need a bunch of changes.
So, let's fix the probe problem temporarily by setting the default
probe_mask value.
Reference: kernel bugzilla #12735
http://bugzilla.kernel.org/show_bug.cgi?id=12735
Tested-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
David S. Miller [Mon, 2 Mar 2009 05:35:16 +0000 (21:35 -0800)]
Merge branch 'master' of /linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/wireless/iwlwifi/iwl-tx.c
net/8021q/vlan_core.c
net/core/dev.c
Dmitriy Taychenachev [Tue, 24 Feb 2009 18:42:48 +0000 (18:42 +0000)]
zaurus: add usb id for motomagx phones
The Motorola MOTOMAGX phones (Z6, E8, Zn5 so far) are providing
combined ACM/BLAN USB configuration. Since it has Vendor Specific
class, the corresponding drivers (cdc-acm, zaurus) can't find it just
by interface info. This patch adds usb id so the zaurus driver can
properly handle this combined device.
Signed-off-by: Dmitriy Taychenachev <dimichxp@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bjørn Mork [Mon, 2 Mar 2009 04:45:40 +0000 (20:45 -0800)]
usbnet: make usbnet_get_link() fall back to ethtool_op_get_link()
Make usbnet_get_link() fall back to ethtool_op_get_link() instead of
defaulting to 1.
This makes usbnet_get_link return valid results without the need for a
driver specific check_connect or mii ops as long as the driver calls
netif_carrier_{on,off}() as appropriate. cdc_ether is an example of
such a driver.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric W. Biederman [Wed, 25 Feb 2009 19:47:29 +0000 (19:47 +0000)]
veth: Fix carrier detect
The current implementation of carrier detect in veth is broken.
It reports the link is down until both sides of the veth pair
are administatively up and then forever after it reports link up.
So fix veth so that it only reports link up when both interfaces
of the pair are administratively up.
Signed-off-by: Eric Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bjørn Mork [Wed, 25 Feb 2009 04:33:58 +0000 (04:33 +0000)]
cdc_ether: add usb id for Ericsson F3507g
The Ericsson F3507g wireless broadband module provides a CDC Ethernet
compliant interface, but identifies it as a "Mobile Direct Line" CDC
subclass, thereby preventing the CDC Ethernet class driver from picking
it up. This patch adds the device id to cdc_ether.c as a workaround.
Ericsson has provided a "class" driver for this device:
http://kerneltrap.org/mailarchive/linux-net/2008/10/28/3832094
But closer inspection of that driver reveals that it adds little more
than duplication of code from cdc_ether.c. See also
http://marc.info/?l=linux-usb&m=
123334979706403&w=2
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guo-Fu Tseng [Fri, 27 Feb 2009 17:59:44 +0000 (17:59 +0000)]
jme: Adding {64,40}bits DMA mask back
All JMC250 chips have no problem with higher bits support.
Adding it back.
Found-by: Ethan Hsiao <ethanhsiao@jmicron.com>
Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guo-Fu Tseng [Fri, 27 Feb 2009 17:58:16 +0000 (17:58 +0000)]
jme: Clear all modified GHC register flags
Clear all modified GHC register flags.
Fixed-by: Ethan Hsiao <ethanhsiao@jmicron.com>
Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guo-Fu Tseng [Fri, 27 Feb 2009 17:57:01 +0000 (17:57 +0000)]
jme: Fix pci sync
We should sync ring descriptor to pci device after modifying it.
Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guo-Fu Tseng [Fri, 27 Feb 2009 17:54:07 +0000 (17:54 +0000)]
jme: Modifies messages to display correct hardware version
This patch modifies messages to display correct hardware version.
Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ivan Vecera [Mon, 2 Mar 2009 04:34:48 +0000 (20:34 -0800)]
r8169: read MAC address from EEPROM on init (2nd attempt)
This is 2nd attempt to implement the initialization/reading of MAC address
from EEPROM. The first used PCI's VPD and there were some problems, some
devices are not able to read EEPROM content by VPD. The 2nd one uses direct
access to EEPROM through bit-banging interface and my testing results seem
to be much better.
I tested 5 systems each with different Realtek NICs and I didn't find any
problem. AFAIK Francois's NICs also works fine.
Original description:
This fixes the problem when MAC address is set by ifconfig or by
ip link commands and this address is stored in the device after
reboot. The power-off is needed to get right MAC address.
This is problem when Xen daemon is running because it renames the device
name from ethX to pethX and sets its MAC address to FE:FF:FF:FF:FF:FF.
After reboot the device is still using FE:FF:FF:FF:FF:FF.
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 2 Mar 2009 04:32:39 +0000 (20:32 -0800)]
ixgbe: Fix some compiler warnings.
'pap' is never used in ixgbe_dcb_hw_config_82599()
and 'eec' in ixgbe_acquire_eeptom() is only used when
status == 0 but GCC has some trouble seeing that.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 2 Mar 2009 04:24:32 +0000 (20:24 -0800)]
typhoon: Need non-vmalloc memory to DMA firmware to the card.
request_firmware() gives vmalloc'd memory, which is not suitable
for pci_map_single() and friends.
Use a kmalloc()'d copy of the firmware for this DMA operation.
Signed-off-by: David S. Miller <davem@davemloft.net>
Paul Moore [Fri, 27 Feb 2009 20:00:03 +0000 (15:00 -0500)]
selinux: Fix a panic in selinux_netlbl_inode_permission()
Rick McNeal from LSI identified a panic in selinux_netlbl_inode_permission()
caused by a certain sequence of SUNRPC operations. The problem appears to be
due to the lack of NULL pointer checking in the function; this patch adds the
pointer checks so the function will exit safely in the cases where the socket
is not completely initialized.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: James Morris <jmorris@namei.org>
PJ Waskiewicz [Fri, 27 Feb 2009 15:45:05 +0000 (15:45 +0000)]
ixgbe: Add 82599 device id's, hook it up into the main driver.
With the hardware-specific code in place, add all supported device id's,
along with base driver changes to enable 82599 devices. The devices
being enabled are:
8086:10f7: 82599EB 10 Gigabit KX4 Network Connection
8086:10fb: 82599EB 10 Gigabit Network Connection
The device 8086:10fb is a fully-pluggable SFP+ NIC.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
PJ Waskiewicz [Fri, 27 Feb 2009 15:44:48 +0000 (15:44 +0000)]
ixgbe: Add DCB for 82599, remove BCN support
This patch adds the DCB (Data Center Bridging) support for 82599 hardware.
This is similar to how the 82598 DCB code works.
This patch also removes the BCN (Backwards Congestion Notification) netlink
configuration code from the driver. BCN was a pre-standard congestion
notification framework, and was not what the IEEE body decided upon for
standard congestion management. QCN (802.1Qau), Quantized Congestion
Notification is the accepted standard, which is not supported by 82599,
hence we remove the support altogether.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
PJ Waskiewicz [Fri, 27 Feb 2009 15:44:30 +0000 (15:44 +0000)]
ixgbe: Add hardware specific initialization code for 82599 devices
This patch adds the hardware initialization code specific to 82599. This
is similar to the 82598 hardware initialization code. It also includes all
changes to the existing hardware init code to support 82599.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ilpo Järvinen [Sun, 1 Mar 2009 08:21:36 +0000 (00:21 -0800)]
tcp: fix retrans_out leaks
There's conflicting assumptions in shifting, the caller assumes
that dupsack results in S'ed skbs (or a part of it) for sure but
never gave a hint to tcp_sacktag_one when dsack is actually in
use. Thus DSACK retrans_out -= pcount was not taken and the
counter became out of sync. Remove obstacle from that information
flow to get DSACKs accounted in tcp_sacktag_one as expected.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Tested-by: Denys Fedoryshchenko <denys@visp.net.lb>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chris Leech [Fri, 27 Feb 2009 10:01:42 +0000 (10:01 +0000)]
net headers: export dcbnl.h
The DCB netlink interface is required for building the userspace tools
available at e1000.sourceforge.net
Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>