Commit Graph

6972 Commits

Author SHA1 Message Date
Greg Ungerer
db81fb8486 [PATCH] m68knommu: cleanup showstack()
Make show_stack() consistent with other architectures.
Put the vector string names in the .rodata section.
Patch originally submitted by Philippe De Muyter <phdm@macqel.be>.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-02 00:57:30 -07:00
Greg Ungerer
5d052c170e [PATCH] uclinux: update MAINTAINERS entry for UCLINUX
Modify maintainers for uClinux (MMUless). Neither Dave nor Jeff
manitain the 2.6 code in mainline, so no point emailing them about
problems.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-02 00:57:29 -07:00
Greg Ungerer
029fc1375f [PATCH] m68knommu: fix ColdFire startup code to properly handle non 0 based ram
Correctly determine the end of ram for ram setups that do not
start at base address of 0. Add support for the MOD5272 board,
which doesn not have a ram base of 0.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-02 00:57:29 -07:00
Greg Ungerer
e6070a1712 [PATCH] m68knommu: new family (523x) and board setup
. setup for the new 523x ColdFire family
. break up of 527x to be 5271 and 5275
. some white space cleanup

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-02 00:57:29 -07:00
Greg Ungerer
b5aaf3f71c [PATCH] m68knommu: 523x ColdFire processor init code
Low level initialization code for the 523x ColdFire processor family.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-02 00:57:29 -07:00
Linus Torvalds
138307b475 Merge HEAD from master.kernel.org:/home/rmk/linux-2.6-serial 2005-09-02 00:53:36 -07:00
Linus Torvalds
66f3767376 Merge HEAD from master.kernel.org:/home/rmk/linux-2.6-arm 2005-09-02 00:52:05 -07:00
Linus Torvalds
5d8c397f30 Merge refs/heads/ieee80211-wifi from master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2005-09-02 00:48:33 -07:00
Linus Torvalds
44757223cd Merge refs/heads/upstream from master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2005-09-02 00:46:53 -07:00
Jeff Garzik
ceeec3dc37 /spare/repo/netdev-2.6 branch 'ieee80211' 2005-09-01 18:02:27 -04:00
Jeff Garzik
e3ee3b78f8 /spare/repo/netdev-2.6 branch 'master' 2005-09-01 18:02:01 -04:00
Russell King
86a8a83963 [ARM] Fix ARMv6 page table bits
We weren't explicitly setting the page table bits we desired
in user_prot in the protection table, which resulted in the
user mappings for v6 CPUs being marked global.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01 22:41:55 +01:00
Linus Torvalds
712fbdd333 Merge refs/heads/release from master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6 2005-09-01 10:58:18 -07:00
Linus Torvalds
b25dd2842b Merge HEAD from master.kernel.org:/home/rmk/linux-2.6-arm.git 2005-09-01 10:56:57 -07:00
Kumar Gala
80ac2912f8 [PATCH] ppc: L2 cache prefetch fixes on 745x
We run into problems if we blindly enable L2 prefetching without
checking that the L2 cache is actually enabled.  Additionaly, if we
disable the L2 cache we need to ensure that we disable L2 prefetching.

Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-01 10:52:29 -07:00
Benjamin Herrenschmidt
8085ce084c [PATCH] Fix PCI ROM mapping
This fixes a problem with pci_map_rom() which doesn't properly
update the ROM BAR value with the address thas allocated for it by the
PCI code. This problem, among other, breaks boot on Mac laptops.

It'ss a new version based on Linus latest one with better error
checking.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-01 10:50:29 -07:00
David Gibson
319e76a1ae [PATCH] Fix bug in ppc64 dynamic hugepage support
In adjusting the logic for SLB miss for the dynamic hugepage stuff, I
messed up the !CONFIG_HUGETLB_PAGE case, failing to set the SLB flags
properly.

This fixes it.  It also streamlines the logic for the HUGETLB_PAGE case
(removing a couple of branches) while we're at it.

Booted, and roughly tested on POWER5 (with and without HUGETLB_PAGE),
iSeries/RS64 (no hugepage available), and G5 (with and without
HUGETLB_PAGE).

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-01 10:48:20 -07:00
Adrian Bunk
7eaa414ee8 [PATCH] Add missing select's to DVB_BUDGET_AV
This fixes the following compile error:

	...
	  LD      .tmp_vmlinux1
	drivers/built-in.o: In function `frontend_init':
	budget-av.c:(.text+0xb9448): undefined reference to `tda10046_attach'
	budget-av.c:(.text+0xb9518): undefined reference to `tda10021_attach'
	drivers/built-in.o: In function `philips_tu1216_request_firmware':
	budget-av.c:(.text+0xb937b): undefined reference to `request_firmware'
	make: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Johannes Stezenbach <js@linuxtv.org>
Acked-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-01 10:43:33 -07:00
Russell King
bc49a661e6 [SERIAL] Move serial8250_*_port prototypes to linux/serial_8250.h
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01 15:56:26 +01:00
Russell King
103461a80c [ARM] Simplify setup_mm_for_reboot()
No point checking what CPU architecture level we have each time
within the loop, so precompute the base PMD flags outside the
loop.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01 14:51:59 +01:00
Russell King
08f4ffb3eb [ARM] Convert open-coded __pmd_populate to use inline function
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01 14:45:18 +01:00
Russell King
f8dd49fa05 [SERIAL] mwave is no longer broken
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01 14:25:45 +01:00
Nicolas Pitre
569d2c34dc [ARM] 2864/1: VST aka CONFIG_NO_IDLE_HZ support for SA11x0
Patch from Nicolas Pitre

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01 12:48:48 +01:00
Nicolas Pitre
20e9126808 [ARM] 2863/1: clarify comment in PXA2xx and SA1x00 timer code
Patch from Nicolas Pitre

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01 12:48:47 +01:00
Nicolas Pitre
5c53ff088c [ARM] 2862/1: VST aka CONFIG_NO_IDLE_HZ support for PXA2xx
Patch from Nicolas Pitre

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01 12:48:40 +01:00
Nicolas Pitre
68d9102f76 [ARM] 2865/2: fix fadvise64_64 syscall argument passing
Patch from Nicolas Pitre

The prototype for sys_fadvise64_64() is:
    long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
The argument list is therefore as follows on legacy ABI:
	fd: type int (r0)
	offset: type long long (r1-r2)
	len: type long long (r3-sp[0])
	advice: type int (sp[4])
With EABI this becomes:
	fd: type int (r0)
	offset: type long long (r2-r3)
	len: type long long (sp[0]-sp[4])
	advice: type int (sp[8])
Not only do we have ABI differences here, but the EABI version requires
one additional word on the syscall stack.
To avoid the ABI mismatch and the extra stack space required with EABI
this syscall is now defined with a different argument ordering
on ARM as follows:
    long sys_arm_fadvise64_64(int fd, int advice, loff_t offset, loff_t len)
This gives us the following ABI independent argument distribution:
	fd: type int (r0)
	advice: type int (r1)
	offset: type long long (r2-r3)
	len: type long long (sp[0]-sp[4])
Now, since the syscall entry code takes care of 5 registers only by
default including the store of r4 to the stack, we need a wrapper to
store r5 to the stack as well.  Because that wrapper was missing and was
always required this means that sys_fadvise64_64 never worked on ARM and
therefore we can safely reuse its syscall number for our new
sys_arm_fadvise64_64 interface.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01 12:37:13 +01:00
Jouni Malinen
fbff868db3 [PATCH] hostap: Fix null pointer dereference in prism2_pccard_card_present()
local->hw_priv was initialized only after the interrupt handler was
registered. This could trigger a NULL pointer dereference in
prism2_pccard_card_present() that assumed that local->hw_priv is always
set (and it should have been). Fix this by setting local->hw_priv before
registering the interrupt handler.

Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:48:39 -04:00
Michael Ellerman
ee05f031ec [PATCH] iseries_veth: Be consistent about driver name, increment version
The iseries_veth driver tells sysfs that it's called 'iseries_veth', but if
you ask it via ethtool it thinks it's called 'veth'. I think this comes from
2.4 when the driver was called 'veth', but it's definitely called
'iseries_veth' now, so fix it.

To make sure we don't do it again define DRV_NAME and use it everywhere.

While we're at it, change the version number to 2.0, to reflect the changes
made in this patch series.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:43:42 -04:00
Michael Ellerman
59f17aebab [PATCH] iseries_veth: Remove studly caps from iseries_veth.c
Having merged iseries_veth.h, let's remove some of the studly caps that came
with it.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:43:42 -04:00
Michael Ellerman
642d1a4c36 [PATCH] iseries_veth: Incorporate iseries_veth.h in iseries_veth.c
iseries_veth.h is only used by iseries_veth.c, so merge the former into
the latter.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:43:42 -04:00
Michael Ellerman
07a5c1727d [PATCH] iseries_veth: Add sysfs support for port structs
Also to aid debugging, add sysfs support for iseries_veth's port structures.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:42:46 -04:00
Michael Ellerman
76812d8123 [PATCH] iseries_veth: Add sysfs support for connection structs
To aid in field debugging, add sysfs support for iseries_veth's connection
structures. At the moment this is all read-only, however we could think about
adding write support for some attributes in future.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:42:46 -04:00
Michael Ellerman
db5e8718ea [PATCH] iseries_veth: Fix bogus counting of TX errors
There's a number of problems with the way iseries_veth counts TX errors.

Firstly it counts conditions which aren't really errors as TX errors. This
includes if we don't have a connection struct for the other LPAR, or if the
other LPAR is currently down (or just doesn't want to talk to us). Neither
of these should count as TX errors.

Secondly, it counts one TX error for each LPAR that fails to accept the packet.
This can lead to TX error counts higher than the total number of packets sent
through the interface. This is confusing for users.

This patch fixes that behaviour. The non-error conditions are no longer
counted, and we introduce a new and I think saner meaning to the TX counts.

If a packet is successfully transmitted to any LPAR then it is transmitted
and tx_packets is incremented by 1.

If there is an error transmitting a packet to any LPAR then that is counted
as one error, ie. tx_errors is incremented by 1.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:42:45 -04:00
Michael Ellerman
e0808494ff [PATCH] iseries_veth: Simplify full-queue handling
The iseries_veth driver often has multiple netdevices sending packets over
a single connection to another LPAR. If the bandwidth to the other LPAR is
exceeded, all the netdevices must have their queues stopped.

The current code achieves this by queueing one incoming skb on the
per-netdevice port structure. When the connection is able to send more packets
we iterate through the port structs and flush any packet that is queued,
as well as restarting the associated netdevice's queue.

This arrangement makes less sense now that we have per-connection TX timers,
rather than the per-netdevice generic TX timer.

The new code simply detects when one of the connections is full, and stops
the queue of all associated netdevices. Then when a packet is acked on that
connection (ie. there is space again) all the queues are woken up.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:42:45 -04:00
Michael Ellerman
24562ffa8b [PATCH] iseries_veth: Add a per-connection ack timer
Currently the iseries_veth driver contravenes the specification in
Documentation/networking/driver.txt, in that if packets are not acked by
the other LPAR they will sit around forever.

This patch adds a per-connection timer which fires if we've had no acks for
five seconds. This is superior to the generic TX timer because it catches
the case of a small number of packets being sent and never acked.

This fixes a bug we were seeing on real systems, where some IPv6 neighbour
discovery packets would not be acked and then prevent the module from being
removed, due to skbs lying around.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:42:45 -04:00
Michael Ellerman
48683d72f8 [PATCH] iseries_veth: Remove TX timeout code
The iseries_veth driver uses the generic TX timeout watchdog, however a better
solution is in the works, so remove this code.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:39:43 -04:00
Michael Ellerman
f0c129caa3 [PATCH] iseries_veth: Use kobjects to track lifecycle of connection structs
The iseries_veth driver can attach to multiple vlans, which correspond to
multiple net devices. However there is only 1 connection between each LPAR,
so the connection structure may be shared by multiple net devices.

This makes module removal messy, because we can't deallocate the connections
until we know there are no net devices still using them. The solution is to
use ref counts on the connections, so we can delete them (actually stop) as
soon as the ref count hits zero.

This patch fixes (part of) a bug we were seeing with IPv6 sending probes to
a dead LPAR, which would then hang us forever due to leftover skbs.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:39:43 -04:00
Michael Ellerman
ec60beebed [PATCH] iseries_veth: Make init_connection() & destroy_connection() symmetrical
This patch makes veth_init_connection() and veth_destroy_connection()
symmetrical in that they allocate/deallocate the same data.

Currently if there's an error while initialising connections (ie. ENOMEM)
we call veth_module_cleanup(), however this will oops because we call
driver_unregister() before we've called driver_register(). I've never seen
this actually happen though.

So instead we explicitly call veth_destroy_connection() for each connection,
any that have been set up will be deallocated.

We also fix a potential leak if vio_register_driver() fails.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:39:43 -04:00
Michael Ellerman
cbf9074cc3 [PATCH] iseries_veth: Only call dma_unmap_single() if dma_map_single() succeeded
The iseries_veth driver unconditionally calls dma_unmap_single() even
when the corresponding dma_map_single() may have failed.

Rework the code a bit to keep the return value from dma_unmap_single()
around, and then check if it's a dma_mapping_error() before we do
the dma_unmap_single().

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:39:43 -04:00
Michael Ellerman
b08bd5c0a3 [PATCH] iseries_veth: Replace lock-protected atomic with an ordinary variable
The iseries_veth driver uses atomic ops to manipulate the in_use field of
one of its per-connection structures. However all references to the
flag occur while the connection's lock is held, so the atomic ops aren't
necessary.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:39:43 -04:00
Michael Ellerman
d7893ddd1b [PATCH] iseries_veth: Remove redundant message stack lock
The iseries_veth driver keeps a stack of messages for each connection
and a lock to protect the stack. However there is also a per-connection lock
which makes the message stack lock redundant.

Remove the message stack lock and document the fact that callers of the
stack-manipulation functions must hold the connection's lock.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:37:57 -04:00
Michael Ellerman
2a5391a122 [PATCH] iseries_veth: Fix broken promiscuous handling
Due to a logic bug, once promiscuous mode is enabled in the iseries_veth
driver it is never disabled.

The driver keeps two flags, promiscuous and all_mcast which have exactly the
same effect. This is because we only ever receive packets destined for us,
or multicast packets. So consolidate them into one promiscuous flag for
simplicity.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:37:57 -04:00
Michael Ellerman
58c5900bda [PATCH] iseries_veth: Try to avoid pathological reset behaviour
The iseries_veth driver contains a state machine which is used to manage
how connections are setup and neogotiated between LPARs.

If one side of a connection resets for some reason, the two LPARs can get
stuck in a race to re-setup the connection. This can lead to the connection
being declared dead by one or both ends. In practice the connection is
declared dead by one or both ends approximately 8/10 times a connection is
reset, although it is rare for connections to be reset.

(an example here: http://michael.ellerman.id.au/files/misc/veth-trace.html)

The core of the problem is that the end that resets the connection doesn't
wait for the other end to become aware of the reset. So the resetting end
starts setting the connection back up, and then receives a reset from the
other end (which is the response to the initial reset). And so on.

We're severely limited in what we can do to fix this. The protocol between
LPARs is essentially fixed, as we have to interoperate with both OS/400
and old Linux drivers. Which also means we need a fix that only changes the
code on one end.

The only fix I've found given that, is to just blindly sleep for a bit when
resetting the connection, in the hope that the other end will get itself
sorted.  Needless to say I'd love it if someone has a better idea.

This does work, I've so far been unable to get it to break, whereas without
the fix a reset of one end will lead to a dead connection ~8/10 times.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:37:56 -04:00
Michael Ellerman
abfda4719c [PATCH] iseries_veth: Remove a FIXME WRT deletion of the ack_timer
The iseries_veth driver has a timer which we use to send acks. When the
connection is reset or stopped we need to delete the timer.

Currently we only call del_timer() when resetting a connection, which means
the timer might run again while the connection is being re-setup. As it turns
out that's ok, because the flags the timer consults have been reset.

It's cleaner though to call del_timer_sync() once we've dropped the lock,
although the timer may still run between us dropping the lock and calling
del_timer_sync(), but as above that's ok.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:37:56 -04:00
Michael Ellerman
61a3c69661 [PATCH] iseries_veth: Cleanup error and debug messages
Currently the iseries_veth driver prints the file name and line number in its
error messages. This isn't very useful for most users, so just print
"iseries_veth: message" instead.

 - convert uses of veth_printk() to veth_debug()/veth_error()/veth_info()
 - make terminology consistent, ie. always refer to LPAR not lpar
 - be consistent about printing return codes as %d not %x
 - make format strings fit in 80 columns

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-31 22:37:56 -04:00
Tony Luck
986632fd70 Auto-update from upstream 2005-08-31 14:19:44 -07:00
Alan Cox
5981d64420 [SERIAL] Convert mwave to use serial8250_(un)?register_port
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-31 22:19:33 +01:00
Martin Hicks
a994018a5f [IA64] uncached allocator: use generic (not sn2 specific) functions
Change sn2-specific calls into generic functions.  Without this change
the uncached allocator will not work on non-sn2 platforms.

Signed-off-by: Greg Edwards <edwardsg@sgi.com>
Signed-off-by: Martin Hicks <mort@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-08-31 14:18:04 -07:00
Sascha Hauer
0f302dc354 [ARM] 2866/1: add i.MX set_mctrl / get_mctrl functions
Patch from Sascha Hauer

This patch adds support for setting and getting RTS / CTS via
set_mtctrl / get_mctrl functions.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-31 21:48:47 +01:00
David Vrabel
147056fb84 [ARM] 2869/1: ixp4xx: correct ioread*/iowrite*
Patch from David Vrabel

Correct the ioread* and iowrite* functions.  In particular, add an offset to the cookie in ioport_map so we can map I/O port ranges starting from 0 (0 is for reporting errors).

Signed-off-by: David Vrabel <dvrabel@arcom.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-31 21:45:14 +01:00