This introduces match for Mobility Header (MH) described by Mobile IPv6
specification (RFC3775). User can specify the MH type or its range to be
matched.
Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: Yasuyuki Kozakai <kozakai@linux-ipv6.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 7 Feb 2007 23:05:33 +0000 (15:05 -0800)]
[NETFILTER]: tcp conntrack: do liberal tracking for picked up connections
Do liberal tracking (only RSTs need to be in-window) for connections picked
up without seeing a SYN to deal with window scaling. Also change logging
of invalid packets not to log packets accepted by liberal tracking to avoid
spamming the logs.
Based on suggestion from James Ralston <ralston@pobox.com>
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Schmidt [Wed, 7 Feb 2007 23:05:12 +0000 (15:05 -0800)]
[NETFILTER]: Add SANE connection tracking helper
This is nf_conntrack_sane, a netfilter connection tracking helper module
for the SANE protocol used by the 'saned' daemon to make scanners available
via network. The SANE protocol uses separate control & data connections,
similar to passive FTP. The helper module is needed to recognize the data
connection as RELATED to the control one.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Akinobu Mita [Wed, 7 Feb 2007 08:11:11 +0000 (00:11 -0800)]
[IRDA]: handle out of memory errors
This patch checks return value of memory allocation functions
for irda subsystem and fixes memory leaks in error cases.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
There was no real useful information from the unregister_netdevice() return
code, the only error occurred in a situation that was a driver bug. So
change it to a void function.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Add checksum default defines for mobility header(MH) which
goes through raw socket. As the result kernel's behavior is
to handle MH checksum as default.
This patch also removes verifying inbound MH checksum at
mip6_mh_filter() since it did not consider user specified
checksum offset and was redundant check with raw socket code.
Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Miika Komu [Tue, 6 Feb 2007 22:27:32 +0000 (14:27 -0800)]
[IPSEC]: IPv4 over IPv6 IPsec tunnel
This is the patch to support IPv4 over IPv6 IPsec.
Signed-off-by: Miika Komu <miika@iki.fi> Signed-off-by: Diego Beltrami <Diego.Beltrami@hiit.fi> Signed-off-by: Kazunori Miyazawa <miyazawa@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Miika Komu [Tue, 6 Feb 2007 22:27:02 +0000 (14:27 -0800)]
[IPSEC]: IPv6 over IPv4 IPsec tunnel
This is the patch to support IPv6 over IPv4 IPsec
Signed-off-by: Miika Komu <miika@iki.fi> Signed-off-by: Diego Beltrami <Diego.Beltrami@hiit.fi> Signed-off-by: Kazunori Miyazawa <miyazawa@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Miika Komu [Tue, 6 Feb 2007 22:24:56 +0000 (14:24 -0800)]
[IPSEC]: exporting xfrm_state_afinfo
This patch exports xfrm_state_afinfo.
Signed-off-by: Miika Komu <miika@iki.fi> Signed-off-by: Diego Beltrami <Diego.Beltrami@hiit.fi> Signed-off-by: Kazunori Miyazawa <miyazawa@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 6 Feb 2007 21:29:21 +0000 (13:29 -0800)]
[TG3]: Avoid an expensive divide.
During an oprofile session of linux-2.6.20 on a dual opteron system, I noticed
an expensive divide was done in tg3_poll().
I am using gcc-4.1.1, so the following comment from drivers/net/tg3.c seems
over-optimistic :
/* Do not place this n-ring entries value into the tp struct itself,
* we really want to expose these constants to GCC so that modulo et
* al. operations are done with shifts and masks instead of with
* hw multiply/modulo instructions. Another solution would be to
* replace things like '% foo' with '& (foo - 1)'.
*/
#define TG3_RX_RCB_RING_SIZE(tp) \
((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ? 512 : 1024)
Andrew Morton [Tue, 6 Feb 2007 02:18:21 +0000 (18:18 -0800)]
[DCCP]: Warning fixes.
net/dccp/ccids/ccid3.c: In function `ccid3_hc_rx_packet_recv':
net/dccp/ccids/ccid3.c:1007: warning: long int format, different type arg (arg 3)
net/dccp/ccids/ccid3.c:1007: warning: long int format, different type arg (arg 4)
opaque types must be suitably cast for printing.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Jin [Tue, 6 Feb 2007 02:08:47 +0000 (18:08 -0800)]
[NET] slip: Replace kmalloc() + memset() pairs with the appropriate kzalloc() calls
This patch replace kmalloc() + memset() pairs with the appropriate
kzalloc().
Signed-off-by: Joe Jin <joe.jin@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Adrian Bunk [Tue, 6 Feb 2007 02:07:27 +0000 (18:07 -0800)]
[NET] net/wanrouter/wanmain.c: cleanups
This patch contains the following cleanups:
- make the following needlessly global functions static:
- lock_adapter_irq()
- unlock_adapter_irq()
- #if 0 the following unused global functions:
- wanrouter_encapsulate()
- wanrouter_type_trans()
Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Walker [Tue, 6 Feb 2007 02:04:06 +0000 (18:04 -0800)]
[ATM]: Fix for crash in adummy_init()
This was reported by Ingo Molnar here,
http://lkml.org/lkml/2006/12/18/119
The problem is that adummy_init() depends on atm_init() , but adummy_init()
is called first.
So I put atm_init() into subsys_initcall which seems appropriate, and it
will still get module_init() if it becomes a module.
Interesting to note that you could crash your system here if you just load
the modules in the wrong order.
Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
[NET]: user of the jiffies rounding code: Networking
This patch introduces users of the round_jiffies() function in the
networking code.
These timers all were of the "about once a second" or "about once
every X seconds" variety and several showed up in the "what wakes the
cpu up" profiles that the tickless patches provide. Some timers are
highly dynamic based on network load; but even on low activity systems
they still show up so the rounding is done only in cases of low
activity, allowing higher frequency timers in the high activity case.
The various hardware watchdogs are an obvious case; they run every 2
seconds but aren't otherwise specific of exactly when they need to
run.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Baruch Even [Mon, 5 Feb 2007 07:37:41 +0000 (23:37 -0800)]
[TCP]: Check num sacks in SACK fast path
We clear the unused parts of the SACK cache, This prevents us from mistakenly
taking the cache data if the old data in the SACK cache is the same as the data
in the SACK block. This assumes that we never receive an empty SACK block with
start and end both at zero.
Signed-off-by: Baruch Even <baruch@ev-en.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Baruch Even [Mon, 5 Feb 2007 07:36:42 +0000 (23:36 -0800)]
[TCP]: Seperate DSACK from SACK fast path
Move DSACK code outside the SACK fast-path checking code. If the DSACK
determined that the information was too old we stayed with a partial cache
copied. Most likely this matters very little since the next packet will not be
DSACK and we will find it in the cache. but it's still not good form and there
is little reason to couple the two checks.
Since the SACK receive cache doesn't need the data to be in host order we also
remove the ntohl in the checking loop.
Signed-off-by: Baruch Even <baruch@ev-en.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Baruch Even [Mon, 5 Feb 2007 07:35:57 +0000 (23:35 -0800)]
[TCP]: Advance fast path pointer for first block only
Only advance the SACK fast-path pointer for the first block, the
fast-path assumes that only the first block advances next time so we
should not move the cached skb for the next sack blocks.
Signed-off-by: Baruch Even <baruch@ev-en.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Mon, 5 Feb 2007 07:33:10 +0000 (23:33 -0800)]
[PACKET]: Fix skb->cb clobbering between aux and sockaddr
Both aux data and sockaddr tries to use the same buffer which
obviously doesn't work. We just happen to have 4 bytes free in
the skb->cb if you take away the maximum length of sockaddr_ll.
That's just enough to store the one piece of info from aux data
that we can't generate at recvmsg(2) time.
This is what the following patch does.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Mon, 5 Feb 2007 07:31:32 +0000 (23:31 -0800)]
[PACKET]: Add optional checksum computation for recvmsg
This patch is needed to make ISC's DHCP server (and probably other
DHCP servers/clients using AF_PACKET) to be able to serve another
client on the same Xen host.
The problem is that packets between different domains on the same
Xen host only have partial checksums. Unfortunately this piece of
information is not passed along in AF_PACKET unless you're using
the mmap interface. Since dhcpd doesn't support packet-mmap, UDP
packets from the same host come out with apparently bogus checksums.
This patch adds a mechanism for AF_PACKET recvmsg(2) to return the
status along with the packet. It does so by adding a new cmsg that
contains this information along with some other relevant data such
as the original packet length.
I didn't include the time stamp information since there is already
a cmsg for that.
This patch also changes the mmap code to set the CSUMNOTREADY flag
on all packets instead of just outoing packets on cooked sockets.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 8 Feb 2007 10:09:21 +0000 (02:09 -0800)]
[IPV4/IPV6]: Always wait for IPSEC SA resolution in socket contexts.
Do this even for non-blocking sockets. This avoids the silly -EAGAIN
that applications can see now, even for non-blocking sockets in some
cases (f.e. connect()).
With help from Venkat Tekkirala.
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Thu, 1 Feb 2007 07:16:40 +0000 (23:16 -0800)]
[NETLINK]: Don't BUG on undersized allocations
Currently netlink users BUG when the allocated skb for an event
notification is undersized. While this is certainly a kernel bug,
its not critical and crashing the kernel is too drastic, especially
when considering that these errors have appeared multiple times in
the past and it BUGs even if no listeners are present.
This patch replaces BUG by WARN_ON and changes the notification
functions to inform potential listeners of undersized allocations
using a unique error code (EMSGSIZE).
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Thu, 8 Feb 2007 18:37:22 +0000 (10:37 -0800)]
Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/mfasheh/ocfs2
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/mfasheh/ocfs2: (22 commits)
configfs: Zero terminate data in configfs attribute writes.
[PATCH] ocfs2 heartbeat: clean up bio submission code
ocfs2: introduce sc->sc_send_lock to protect outbound outbound messages
[PATCH] ocfs2: drop INET from Kconfig, not needed
ocfs2_dlm: Add timeout to dlm join domain
ocfs2_dlm: Silence some messages during join domain
ocfs2_dlm: disallow a domain join if node maps mismatch
ocfs2_dlm: Ensure correct ordering of set/clear refmap bit on lockres
ocfs2: Binds listener to the configured ip address
ocfs2_dlm: Calling post handler function in assert master handler
ocfs2: Added post handler callable function in o2net message handler
ocfs2_dlm: Cookies in locks not being printed correctly in error messages
ocfs2_dlm: Silence a failed convert
ocfs2_dlm: wake up sleepers on the lockres waitqueue
ocfs2_dlm: Dlm dispatch was stopping too early
ocfs2_dlm: Drop inflight refmap even if no locks found on the lockres
ocfs2_dlm: Flush dlm workqueue before starting to migrate
ocfs2_dlm: Fix migrate lockres handler queue scanning
ocfs2_dlm: Make dlmunlock() wait for migration to complete
ocfs2_dlm: Fixes race between migrate and dirty
...
* master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: (116 commits)
[POWERPC] Add export of vgacon_remap_base
[POWERPC] Remove bogus comment about page_is_ram
[POWERPC] windfarm: don't die on suspend thread signal
[POWERPC] Fix comment in kernel/irq.c
[POWERPC] ppc: Fix booke watchdog initialization
[POWERPC] PPC: Use ARRAY_SIZE macro when appropriate
[POWERPC] Use ARRAY_SIZE macro when appropriate
[POWERPC] Fix ppc64's writing to struct file_operations
[POWERPC] ppc: use syslog macro for the printk log level
[POWERPC] ppc: cs4218_tdm remove extra brace
[POWERPC] Add mpc52xx/lite5200 PCI support
[POWERPC] Only use H_BULK_REMOVE if the firmware supports it
[POWERPC] Fixup error handling when emulating a floating point instruction
[POWERPC] Enable interrupts if we are doing fp math emulation
[POWERPC] Added kprobes support to ppc32
[POWERPC] Make pSeries use the H_BULK_REMOVE hypervisor call
[POWERPC] Clear RI bit in MSR before restoring r13 when returning to userspace
[POWERPC] Fix performance monitor exception
[POWERPC] Compile fixes for arch/powerpc dcr code
[POWERPC] Maple: use mmio nvram
...
Linus Torvalds [Thu, 8 Feb 2007 18:03:28 +0000 (10:03 -0800)]
Merge branch 'drm-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: Allow for 44 bit user-tokens (or drm_file offsets)
drm/via: Disable AGP DMA for chips with the new 3D engine.
drm: update core memory manager from git drm tree
drm: remove drm_ioremap and drm_ioremapfree
i810/i830: use drm_core_ioremap instead of drm_ioremap
drm: use vmalloc_user instead of vmalloc_32 for DRM_SHM
via: allow for npot texture pitch alignment
via: add some new chipsets
via: some PCI posting flushes
The following macro :
include/asm-powerpc/vga.h:#define VGA_MAP_MEM(x,s) (x + vgacon_remap_base)
is used by drivers/video/console/vgacon.c which can be compiled as a module
(drivers/video/vga16fb.ko).
Therefore, vgacon_remap_base should be exported.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
Johannes Berg [Mon, 5 Feb 2007 18:30:29 +0000 (19:30 +0100)]
[POWERPC] windfarm: don't die on suspend thread signal
When the windfarm thread gets a suspend signal it will die instead of
freezing. This fixes it.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Johannes Berg [Wed, 13 Dec 2006 12:38:22 +0000 (13:38 +0100)]
[POWERPC] Fix comment in kernel/irq.c
kernel/irq.c contains a comment that speaks of -1 and -2 as interrupt
numbers, but this is actually dependent on configuration options now.
Replace by NO_IRQ and NO_IRQ_ENABLED.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
[POWERPC] PPC: Use ARRAY_SIZE macro when appropriate
Use ARRAY_SIZE macro already defined in linux/kernel.h
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Kumar Gala <galak@gate.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Use ARRAY_SIZE macro already defined in linux/kernel.h
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
[POWERPC] Fix ppc64's writing to struct file_operations
In preparation for marking file_operations as const.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
[POWERPC] ppc: use syslog macro for the printk log level
Use the appropriate logging macro for the priority level for that
printk call.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Linus Torvalds [Thu, 8 Feb 2007 04:24:25 +0000 (20:24 -0800)]
kbuild: make $(checker-shell ) strip spaces around the result
It looks like GNU make version 3.80 (but apparently not 3.81) adds
leading whitespace to the result of the checker-shell execution. This
strips them off explicitly.
Also, don't bother symlinking the output file to /dev/null. It's likely
as expensive as just writing the temp-file, and we need to remove it
anyway afterwards.
Paul Mackerras [Thu, 8 Feb 2007 04:02:35 +0000 (15:02 +1100)]
[POWERPC] Only use H_BULK_REMOVE if the firmware supports it
The previous patch changing pSeries to use H_BULK_REMOVE broke the
JS20 blade, where the firmware doesn't support H_BULK_REMOVE. This
adds a firmware check so that on machines that don't have H_BULK_REMOVE,
we just use the H_REMOVE call as before.
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (70 commits)
USB: remove duplicate device id from zc0301
USB: remove duplicate device id from usb_storage
USB: remove duplicate device id from keyspan
USB: remove duplicate device id from ftdi_sio
USB: remove duplicate device id from visor
USB: a bit more coding style cleanup
usbcore: trivial whitespace fixes
usb-storage: use first bulk endpoints, not last
EHCI: fix interrupt-driven remote wakeup
USB: switch ehci-hcd to new polling scheme
USB: autosuspend for usb printer driver
USB Input: Added kernel module to support all GTCO CalComp USB InterWrite School products
USB: Sierra Wireless auto set D0
USB: usb ethernet gadget recognizes HUSB2DEV
USB: list atmel husb2_udc gadget controller
USB: gadgetfs AIO tweaks
USB: gadgetfs behaves better on userspace init bug
USB: gadgetfs race fix
USB: gadgetfs simplifications
USB: gadgetfs cleanups
...
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (28 commits)
sysfs: Shadow directory support
Driver Core: Increase the default timeout value of the firmware subsystem
Driver core: allow to delay the uevent at device creation time
Driver core: add device_type to struct device
Driver core: add uevent vars for devices of a class
SYSFS: Fix missing include of list.h in sysfs.h
HOWTO: Add a reference to Harbison and Steele
sysfs: error handling in sysfs, fill_read_buffer()
kobject: kobject_put cleanup
sysfs: kobject_put cleanup
sysfs: suppress lockdep warnings
Driver core: fix race in sysfs between sysfs_remove_file() and read()/write()
driver core: Change function call order in device_bind_driver().
driver core: Don't stop probing on ->probe errors.
driver core fixes: device_register() retval check in platform.c
driver core fixes: make_class_name() retval checks
/sys/modules/*/holders
USB: add the sysfs driver name to all modules
SERIO: add the sysfs driver name to all modules
PCI: add the sysfs driver name to all modules
...
Linus Torvalds [Thu, 8 Feb 2007 03:21:56 +0000 (19:21 -0800)]
Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (116 commits)
sk98lin: planned removal
AT91: MACB support
sky2: version 1.12
sky2: add new chip ids
sky2: Yukon Extreme support
sky2: safer transmit timeout
sky2: TSO support for EC_U
sky2: use dev_err for error reports
sky2: add Wake On Lan support
fix unaligned exception in /drivers/net/wireless/orinoco.c
Remove unused kernel config option DLCI_COUNT
z85230: spinlock logic
mips: declance: Driver model for the PMAD-A
Spidernet: Rework RX linked list
NET: turn local_save_flags() + local_irq_disable() into local_irq_save()
NET-3c59x: turn local_save_flags() + local_irq_disable() into local_irq_save()
hp100: convert pci_module_init() to pci_register_driver()
NetXen: Added ethtool support for user level tools.
NetXen: Firmware crb init changes.
maintainers: add atl1 maintainers
...
Remove the memory manager parameter from the put_block function, as this
makes the client code a lot cleaner. Prepare buffer manager for lock and
unlock calls.
Fix buggy aligned allocations.
Remove the stupid root_node field from the core memory manager.
Support multi-page buffer offset alignments
Add improved alignment functionality to the core memory manager.
This makes an allocated block actually align itself and returns any
wasted space to the manager.
Andrew Victor [Wed, 7 Feb 2007 15:40:44 +0000 (16:40 +0100)]
AT91: MACB support
The Atmel MACB Ethernet peripheral is also integrated in the AT91SAM9260
and AT91SAM9263 processors. The differences from the AVR32 version are:
* Single peripheral clock.
* MII/RMII selection bit is inverted.
* Clock enable bit.
Original patch from Patrice Vilchez.
Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Use the standard dev_xxx functions instead of printk directly for
error reports. Fix a bug where the initialization would return 0
if allocation of network device failed.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
The arch hooks arch_setup_msi_irq and arch_teardown_msi_irq are now
responsible for allocating and freeing the linux irq in addition to
setting up the the linux irq to work with the interrupt.
arch_setup_msi_irq now takes a pci_device and a msi_desc and returns
an irq.
With this change in place this code should be useable by all platforms
except those that won't let the OS touch the hardware like ppc RTAS.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We need to be able to get from an irq number to a struct msi_desc.
The msi_desc array in msi.c had several short comings the big one was
that it could not be used outside of msi.c. Using irq_data in struct
irq_desc almost worked except on some architectures irq_data needs to
be used for something else.
So this patch adds a msi_desc pointer to irq_desc, adds the appropriate
wrappers and changes all of the msi code to use them.
The dynamic_irq_init/cleanup code was tweaked to ensure the new
field is left in a well defined state.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Since msi_remove_pci_irq_vectors is designed to be called during
hotplug remove it is actively wrong to query the hardware and expect
meaningful results back.
To that end remove the pci_find_capability calls. Testing
dev->msi_enabled and dev->msix_enabled gives us all of the information
we need.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
With the removal of msi_lookup_irq all of the functions using msi_lock
operated on a single device and none of them could reasonably be
called on that device at the same time.
Since what little synchronization that needs to happen needs to happen
outside of the msi functions, msi_lock could never be contended and as
such is useless and just complicates the code.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The function msi_lookup_irq was horrible. As a side effect of running
it changed dev->irq, and then the callers would need to change it
back. In addition it does a global scan through all of the irqs,
which seems to be the sole justification of the msi_lock.
To remove the neede for msi_lookup_irq I added first_msi_irq to struct
pci_dev. Then depending on the context I replaced msi_lookup_irq with
dev->first_msi_irq, dev->msi_enabled, or dev->msix_enabled.
msi_enabled and msix_enabled were already present in pci_dev for other
reasons.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michael Ellerman [Thu, 25 Jan 2007 08:34:08 +0000 (19:34 +1100)]
MSI: Combine pci_(save|restore)_msi/msix_state
The PCI save/restore code doesn't need to care about MSI vs MSI-X, all
it really wants is to say "save/restore all MSI(-X) info for this device".
This is borne out in the code, we call the MSI and MSI-X save routines
side by side, and similarly with the restore routines.
So combine the MSI/MSI-X routines into pci_save_msi_state() and
pci_restore_msi_state(). It is up to those routines to decide what state
needs to be saved.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michael Ellerman [Thu, 25 Jan 2007 08:34:07 +0000 (19:34 +1100)]
MSI: Replace pci_msi_quirk with calls to pci_no_msi()
I don't see any reason why we need pci_msi_quirk, quirk code can just
call pci_no_msi() instead.
Remove the check of pci_msi_quirk in msi_init(). This is safe as all
calls to msi_init() are protected by calls to pci_msi_supported(),
which checks pci_msi_enable, which is disabled by pci_no_msi().
The pci_disable_msi routines didn't check pci_msi_quirk, only
pci_msi_enable, but as far as I can see that was a bug not a feature.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Satoru Takeuchi [Thu, 18 Jan 2007 04:50:05 +0000 (13:50 +0900)]
PCI: cleanup MSI code
Cleanup MSI code as follows:
- fix some types
- fix strange local variable definition
- delete unnecessary blank line
- add comment to #endif which is far from corresponding #ifdef
Jean Delvare [Fri, 5 Jan 2007 10:23:15 +0000 (11:23 +0100)]
PCI: Speed up the Intel SMBus unhiding quirk
Speed up the Intel SMBus PCI quirk by avoiding tests which can only
fail. This also makes the compiled code significantly smaller when
using gcc 3.2/3.4. gcc 4.x appears to optimize the code by itself so
this change doesn't make a difference there.
Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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