Commit Graph

245126 Commits

Author SHA1 Message Date
David S. Miller
d9d8da805d inet: Pass flowi to ->queue_xmit().
This allows us to acquire the exact route keying information from the
protocol, however that might be managed.

It handles all of the possibilities, from the simplest case of storing
the key in inet->cork.fl to the more complex setup SCTP has where
individual transports determine the flow.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 15:28:28 -07:00
David S. Miller
0e73441992 ipv4: Use inet_csk_route_child_sock() in DCCP and TCP.
Operation order is now transposed, we first create the child
socket then we try to hook up the route.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 15:28:03 -07:00
David S. Miller
77357a9552 ipv4: Create inet_csk_route_child_sock().
This is just like inet_csk_route_req() except that it operates after
we've created the new child socket.

In this way we can use the new socket's cork flow for proper route
key storage.

This will be used by DCCP and TCP child socket creation handling.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 14:34:22 -07:00
David S. Miller
8663c938ce sctp: Store a flowi in transports to provide persistent keying.
Several future simplifications are possible now because of this.

For example, the sctp_addr unions can simply refer directly to
the flowi information.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 14:05:14 -07:00
David S. Miller
b57ae01a8a ipv4: Use cork flow in ip_queue_xmit()
All invokers of ip_queue_xmit() must make certain that the
socket is locked.  All of SCTP, TCP, DCCP, and L2TP now make
sure this is the case.

Therefore we can use the cork flow during output route lookup in
ip_queue_xmit() when the socket route check fails.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 14:05:14 -07:00
David S. Miller
6e86913810 ipv4: Use cork flow in inet_sk_{reselect_saddr,rebuild_header}()
These two functions must be invoked only when the socket is locked
(because socket identity modifications are made non-atomically).

Therefore we can use the cork flow for output route lookups.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 14:05:13 -07:00
David S. Miller
3038eeac02 ipv4: Lock socket and use cork flow in ip4_datagram_connect().
This is to make sure that an l2tp socket's inet cork flow is
fully filled in, when it's encapsulated in UDP.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 13:48:57 -07:00
David S. Miller
fdbb0f076b l2tp: Use cork flow in l2tp_ip_connect() and l2tp_ip_sendmsg()
Now that the socket is consistently locked in these two routines,
this transformation is legal.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 13:48:37 -07:00
David S. Miller
6af88da14e l2tp: Fix locking in l2tp_core.c
l2tp_xmit_skb() must take the socket lock.  It makes use of ip_queue_xmit()
which expects to execute in a socket atomic context.

Since we execute this function in software interrupts, we cannot use the
usual lock_sock()/release_sock() sequence, instead we have to use
bh_lock_sock() and see if a user has the socket locked, and if so drop
the packet.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 13:45:20 -07:00
David S. Miller
2f16270f41 l2tp: Fix locking in l2tp_ip.c
Both l2tp_ip_connect() and l2tp_ip_sendmsg() must take the socket
lock.  They both modify socket state non-atomically, and in particular
l2tp_ip_sendmsg() increments socket private counters without using
atomic operations.
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 13:39:01 -07:00
David S. Miller
da905bd1d5 tcp: Use cork flow in tcp_v4_connect()
Since this is invoked from inet_stream_connect() the socket is locked
and therefore this usage is safe.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 13:18:54 -07:00
David S. Miller
2c42758cf6 dccp: Use cork flow in dccp_v4_connect()
Since this is invoked from inet_stream_connect() the socket is locked
and therefore this usage is safe.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 13:18:53 -07:00
Stephen Hemminger
1ab7b6ac27 ethtool: remove phys_id from ethtool_ops
After that all the upstream kernel drivers now use phys_id,
and the old ethtool_ops interface (phys_id) can be removed.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 12:49:33 -07:00
David S. Miller
534eacb5d4 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/jkirsher/net-next-2.6 2011-05-07 22:57:22 -07:00
David S. Miller
0f020dec54 hamachi: Put back RX_CHECKSUM
I deleted it by mistake in the TX_CHECKSUM removal
commit.

Reported-by: Michał Mirosław <mirqus@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-07 22:31:35 -07:00
Emil Tantilov
58f6bcf96e ixgbe: add ethtool counters for OS2BMC
OS2BMC registers are available for X540.
This patch adds ethtool counters based on those registers.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Evan Swanson <evan.swanson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-07 03:15:45 -07:00
Emil Tantilov
67a74ee2a2 ixgbe: add rxhash support
feed RSS hash into skb->rxhash

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Evan Swanson <evan.swanson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-07 03:14:22 -07:00
Jeff Kirsher
936db3559f igb: convert to ethtool set_phys_id
Based on patch from Stephen Hemminger.
Convert igb driver to use new set_phys_id ethtool interface.

CC: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-07 03:11:57 -07:00
Jeff Kirsher
6435909199 e1000: convert to set_phys_id
Based on the original patch from Stephen Hemminger.
Convert to new LED control infrastucture and remove no longer
necessary bits.

CC: Stephen Hemminger <shemminger@vyatta.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-07 03:10:13 -07:00
Jeff Kirsher
a70b86ae20 e100: implemenet set_phys_id
Based on the original patch from Stephen Hemminger.
Implement set_phys_id to control LED.

CC: Stephen Hemminger <shemminger@vyatta.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-07 03:08:38 -07:00
David S. Miller
706527280e ipv4: Initialize cork->opt using NULL not 0.
Noticed by Joe Perches.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-06 16:01:15 -07:00
David S. Miller
b80d72261a ipv4: Initialize on-stack cork more efficiently.
ip_setup_cork() explicitly initializes every member of
inet_cork except flags, addr, and opt.  So we can simply
set those three members to zero instead of using a
memset() via an empty struct assignment.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
2011-05-06 15:37:57 -07:00
David S. Miller
bdc712b4c2 inet: Decrease overhead of on-stack inet_cork.
When we fast path datagram sends to avoid locking by putting
the inet_cork on the stack we use up lots of space that isn't
necessary.

This is because inet_cork contains a "struct flowi" which isn't
used in these code paths.

Split inet_cork to two parts, "inet_cork" and "inet_cork_full".
Only the latter of which has the "struct flowi" and is what is
stored in inet_sock.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
2011-05-06 15:37:57 -07:00
David S. Miller
ad638bd16d hamachi: Delete TX checksumming code commented out since 1999
TX checksumming support has been ifdef commented out of this driver
for more than 10 years, and it makes references to aspects of the IPv4
stack from back then as well.

If someone has one of these rare cards and wants to properly resurrect
TX checksumming support, they can still get at this code in the
version control history.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-06 11:58:55 -07:00
David S. Miller
7143b7d412 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/tg3.c
2011-05-05 14:59:02 -07:00
David S. Miller
90864fbc76 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2011-05-05 14:09:28 -07:00
Anton Blanchard
228e548e60 net: Add sendmmsg socket system call
This patch adds a multiple message send syscall and is the send
version of the existing recvmmsg syscall. This is heavily
based on the patch by Arnaldo that added recvmmsg.

I wrote a microbenchmark to test the performance gains of using
this new syscall:

http://ozlabs.org/~anton/junkcode/sendmmsg_test.c

The test was run on a ppc64 box with a 10 Gbit network card. The
benchmark can send both UDP and RAW ethernet packets.

64B UDP

batch   pkts/sec
1       804570
2       872800 (+ 8 %)
4       916556 (+14 %)
8       939712 (+17 %)
16      952688 (+18 %)
32      956448 (+19 %)
64      964800 (+20 %)

64B raw socket

batch   pkts/sec
1       1201449
2       1350028 (+12 %)
4       1461416 (+22 %)
8       1513080 (+26 %)
16      1541216 (+28 %)
32      1553440 (+29 %)
64      1557888 (+30 %)

We see a 20% improvement in throughput on UDP send and 30%
on raw socket send.

[ Add sparc syscall entries. -DaveM ]

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05 11:10:14 -07:00
Kurt Van Dijck
87e9af6cc6 can: fix SJA1000 dlc for RTR packets
RTR frames do have a valid data length code on CAN.
The driver for SJA1000 did not handle that situation properly.

Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05 11:02:22 -07:00
Jiri Pirko
1c5cae815d net: call dev_alloc_name from register_netdevice
Force dev_alloc_name() to be called from register_netdevice() by
dev_get_valid_name(). That allows to remove multiple explicit
dev_alloc_name() calls.

The possibility to call dev_alloc_name in advance remains.

This also fixes veth creation regresion caused by
84c49d8c3e

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05 10:57:45 -07:00
Dmitry Kravkov
e892067497 bnx2x: function descriptions format fixed
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05 10:44:36 -07:00
Dmitry Kravkov
5de924086a bnx2x: update year to 2011 and version to 1.62.12-0
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05 10:44:35 -07:00
Dmitry Kravkov
b3b83c3f3c bnx2x: improve memory handling, low memory recovery flows
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05 10:44:34 -07:00
Dmitry Kravkov
426b924150 bnx2x: Do storage mac address validation for SF mode.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05 10:44:34 -07:00
Dmitry Kravkov
f9a3ebbe65 bnx2x: allow WoL on every function in MF modes
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05 10:44:33 -07:00
Vladislav Zolotarov
2ae17f6660 bnx2x: link report improvements
To avoid link notification duplication

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05 10:44:33 -07:00
Giuseppe CAVALLARO
34da9e50e9 stmmac: removed not used definitions
Reported-by: Karim Hamiti <karim.hamiti@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05 10:43:03 -07:00
Ming Lei
75bd0cbdc2 usbnet: runtime pm: fix out of memory
This patch makes use of the EVENT_DEV_OPEN flag introduced recently to
fix one out of memory issue, which can be reproduced on omap3/4 based
pandaboard/beagle XM easily with steps below:

	- enable runtime pm
	echo auto > /sys/devices/platform/usbhs-omap.0/ehci-omap.0/usb1/1-1/1-1.1/power/control

	- ifconfig eth0 up

	- then out of memroy happened, see [1] for kernel message.

Follows my analysis:
	- 'ifconfig eth0 up' brings eth0 out of suspend, and usbnet_resume
	is called to schedule dev->bh, then rx urbs are submited to prepare for
	recieving data;

	- some usbnet devices will produce garbage rx packets flood if
	info->reset is not called in usbnet_open.

	- so there is no enough chances for usbnet_bh to handle and release
	recieved skb buffers since many rx interrupts consumes cpu, so out of memory
	for atomic allocation in rx_submit happened.

This patch fixes the issue by simply not allowing schedule of usbnet_bh until device
is opened.

[1], dmesg
[  234.712005] smsc95xx 1-1.1:1.0: rpm_resume flags 0x4
[  234.712066] usb 1-1.1: rpm_resume flags 0x0
[  234.712066] usb 1-1: rpm_resume flags 0x0
[  234.712097] usb usb1: rpm_resume flags 0x0
[  234.712127] usb usb1: usb auto-resume
[  234.712158] ehci-omap ehci-omap.0: resume root hub
[  234.754028] hub 1-0:1.0: hub_resume
[  234.754821] hub 1-0:1.0: port 1: status 0507 change 0000
[  234.756011] hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0000
[  234.756042] hub 1-0:1.0: rpm_resume flags 0x4
[  234.756072] usb usb1: rpm_resume flags 0x0
[  234.756164] usb usb1: rpm_resume returns 1
[  234.756195] hub 1-0:1.0: rpm_resume returns 0
[  234.756195] hub 1-0:1.0: rpm_suspend flags 0x4
[  234.756225] hub 1-0:1.0: rpm_suspend returns 0
[  234.756256] usb usb1: rpm_resume returns 0
[  234.757141] usb 1-1: usb auto-resume
[  234.793151] ehci-omap ehci-omap.0: GetStatus port:1 status 001005 0  ACK POWER sig=se0 PE CONNECT
[  234.816558] usb 1-1: finish resume
[  234.817871] hub 1-1:1.0: hub_resume
[  234.818420] hub 1-1:1.0: port 1: status 0507 change 0000
[  234.820495] ehci-omap ehci-omap.0: reused qh eec50220 schedule
[  234.820495] usb 1-1: link qh256-0001/eec50220 start 1 [1/0 us]
[  234.820587] usb 1-1: rpm_resume returns 0
[  234.820800] hub 1-1:1.0: state 7 ports 5 chg 0000 evt 0000
[  234.820800] hub 1-1:1.0: rpm_resume flags 0x4
[  234.820831] hub 1-1:1.0: rpm_resume returns 0
[  234.820861] hub 1-1:1.0: rpm_suspend flags 0x4
[  234.820861] hub 1-1:1.0: rpm_suspend returns 0
[  234.821777] usb 1-1.1: usb auto-resume
[  234.868591] hub 1-1:1.0: state 7 ports 5 chg 0000 evt 0002
[  234.868591] hub 1-1:1.0: rpm_resume flags 0x4
[  234.868621] hub 1-1:1.0: rpm_resume returns 0
[  234.868652] hub 1-1:1.0: rpm_suspend flags 0x4
[  234.868652] hub 1-1:1.0: rpm_suspend returns 0
[  234.879486] usb 1-1.1: finish resume
[  234.880279] usb 1-1.1: rpm_resume returns 0
[  234.880310] smsc95xx 1-1.1:1.0: rpm_resume returns 0
[  238.880187] ksoftirqd/0: page allocation failure. order:0, mode:0x20
[  238.880218] Backtrace:
[  238.880249] [<c01b9800>] (dump_backtrace+0x0/0xf8) from [<c065e1dc>] (dump_stack+0x18/0x1c)
[  238.880249]  r6:00000000 r5:00000000 r4:00000020 r3:00000002
[  238.880310] [<c065e1c4>] (dump_stack+0x0/0x1c) from [<c026ece4>] (__alloc_pages_nodemask+0x620/0x724)
[  238.880340] [<c026e6c4>] (__alloc_pages_nodemask+0x0/0x724) from [<c02986d4>] (kmem_getpages.clone.34+0x34/0xc8)
[  238.880371] [<c02986a0>] (kmem_getpages.clone.34+0x0/0xc8) from [<c02988f8>] (cache_grow.clone.42+0x84/0x154)
[  238.880371]  r6:ef871aa4 r5:ef871a80 r4:ef81fd40 r3:00000020
[  238.880401] [<c0298874>] (cache_grow.clone.42+0x0/0x154) from [<c0298b64>] (cache_alloc_refill+0x19c/0x1f0)
[  238.880432] [<c02989c8>] (cache_alloc_refill+0x0/0x1f0) from [<c0299804>] (kmem_cache_alloc+0x90/0x190)
[  238.880462] [<c0299774>] (kmem_cache_alloc+0x0/0x190) from [<c052e260>] (__alloc_skb+0x34/0xe8)
[  238.880493] [<c052e22c>] (__alloc_skb+0x0/0xe8) from [<bf0509f4>] (rx_submit+0x2c/0x1d4 [usbnet])
[  238.880523] [<bf0509c8>] (rx_submit+0x0/0x1d4 [usbnet]) from [<bf050d38>] (rx_complete+0x19c/0x1b0 [usbnet])
[  238.880737] [<bf050b9c>] (rx_complete+0x0/0x1b0 [usbnet]) from [<bf006fd0>] (usb_hcd_giveback_urb+0xa8/0xf4 [usbcore])
[  238.880737]  r8:eeeced34 r7:eeecec00 r6:eeecec00 r5:00000000 r4:eec2dd20
[  238.880767] r3:bf050b9c
[  238.880859] [<bf006f28>] (usb_hcd_giveback_urb+0x0/0xf4 [usbcore]) from [<bf03c8f8>] (ehci_urb_done+0xb0/0xbc [ehci_hcd])
[  238.880859]  r6:00000000 r5:eec2dd20 r4:eeeced44 r3:eec2dd34
[  238.880920] [<bf03c848>] (ehci_urb_done+0x0/0xbc [ehci_hcd]) from [<bf040204>] (qh_completions+0x308/0x3bc [ehci_hcd])
[  238.880920]  r7:00000000 r6:eeda21a0 r5:ffdfe3c0 r4:eeda21ac
[  238.880981] [<bf03fefc>] (qh_completions+0x0/0x3bc [ehci_hcd]) from [<bf040ef8>] (scan_async+0xb0/0x16c [ehci_hcd])
[  238.881011] [<bf040e48>] (scan_async+0x0/0x16c [ehci_hcd]) from [<bf040fec>] (ehci_work+0x38/0x90 [ehci_hcd])
[  238.881042] [<bf040fb4>] (ehci_work+0x0/0x90 [ehci_hcd]) from [<bf042940>] (ehci_irq+0x300/0x34c [ehci_hcd])
[  238.881072]  r4:eeeced34 r3:00000001
[  238.881134] [<bf042640>] (ehci_irq+0x0/0x34c [ehci_hcd]) from [<bf006828>] (usb_hcd_irq+0x40/0xac [usbcore])
[  238.881195] [<bf0067e8>] (usb_hcd_irq+0x0/0xac [usbcore]) from [<c0239764>] (handle_irq_event_percpu+0xb8/0x240)
[  238.881225]  r6:eec504e0 r5:0000006d r4:eec504e0 r3:bf0067e8
[  238.881256] [<c02396ac>] (handle_irq_event_percpu+0x0/0x240) from [<c0239930>] (handle_irq_event+0x44/0x64)
[  238.881256] [<c02398ec>] (handle_irq_event+0x0/0x64) from [<c023bbd0>] (handle_level_irq+0xe0/0x114)
[  238.881286]  r6:0000006d r5:c080c14c r4:c080c100 r3:00020000
[  238.881317] [<c023baf0>] (handle_level_irq+0x0/0x114) from [<c01ab090>] (asm_do_IRQ+0x90/0xd0)
[  238.881317]  r5:00000000 r4:0000006d
[  238.881347] [<c01ab000>] (asm_do_IRQ+0x0/0xd0) from [<c06624d0>] (__irq_svc+0x50/0x134)
[  238.881378] Exception stack(0xef837e20 to 0xef837e68)
[  238.881378] 7e20: 00000001 00185610 016cc000 c00490c0 eb380000 ef800540 00000020 00004ae0
[  238.881408] 7e40: 00000020 bf0509f4 60000013 ef837e9c ef837e40 ef837e68 c0226f0c c0298ca0
[  238.881408] 7e60: 20000013 ffffffff
[  238.881408]  r5:fa240100 r4:ffffffff
[  238.881439] [<c0298bb8>] (__kmalloc_track_caller+0x0/0x1d0) from [<c052e284>] (__alloc_skb+0x58/0xe8)
[  238.881469] [<c052e22c>] (__alloc_skb+0x0/0xe8) from [<bf0509f4>] (rx_submit+0x2c/0x1d4 [usbnet])
[  238.881500] [<bf0509c8>] (rx_submit+0x0/0x1d4 [usbnet]) from [<bf0513d8>] (usbnet_bh+0x1b4/0x250 [usbnet])
[  238.881530] [<bf051224>] (usbnet_bh+0x0/0x250 [usbnet]) from [<c01f912c>] (tasklet_action+0xb0/0x1f8)
[  238.881530]  r6:00000000 r5:ef9757f0 r4:ef9757ec r3:bf051224
[  238.881561] [<c01f907c>] (tasklet_action+0x0/0x1f8) from [<c01f97ac>] (__do_softirq+0x140/0x290)
[  238.881561]  r8:00000006 r7:00000101 r6:00000000 r5:c0806098 r4:00000001
[  238.881591] r3:c01f907c
[  238.881622] [<c01f966c>] (__do_softirq+0x0/0x290) from [<c01f99cc>] (run_ksoftirqd+0xd0/0x1f4)
[  238.881622] [<c01f98fc>] (run_ksoftirqd+0x0/0x1f4) from [<c02113b0>] (kthread+0x90/0x98)
[  238.881652]  r7:00000013 r6:c01f98fc r5:00000000 r4:ef831efc
[  238.881683] [<c0211320>] (kthread+0x0/0x98) from [<c01f62f4>] (do_exit+0x0/0x374)
[  238.881713]  r6:c01f62f4 r5:c0211320 r4:ef831efc
[  238.881713] Mem-info:
[  238.881744] Normal per-cpu:
[  238.881744] CPU    0: hi:  186, btch:  31 usd:  38
[  238.881744] CPU    1: hi:  186, btch:  31 usd: 169
[  238.881774] HighMem per-cpu:
[  238.881774] CPU    0: hi:   90, btch:  15 usd:  66
[  238.881774] CPU    1: hi:   90, btch:  15 usd:  86
[  238.881805] active_anon:544 inactive_anon:71 isolated_anon:0
[  238.881805]  active_file:926 inactive_file:2538 isolated_file:0
[  238.881805]  unevictable:0 dirty:10 writeback:0 unstable:0
[  238.881805]  free:57782 slab_reclaimable:864 slab_unreclaimable:186898
[  238.881805]  mapped:632 shmem:144 pagetables:50 bounce:0
[  238.881835] Normal free:1328kB min:3532kB low:4412kB high:5296kB active_anon:0kB inactive_anon:0kB active_file:880kB inactive_file:848kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:780288kB mlocked:0kB dirty:36kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:3456kB slab_unreclaimable:747592kB kernel_stack:392kB pagetables:200kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[  238.881866] lowmem_reserve[]: 0 1904 1904
[  238.881896] HighMem free:229800kB min:236kB low:508kB high:784kB active_anon:2176kB inactive_anon:284kB active_file:2824kB inactive_file:9304kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:243712kB mlocked:0kB dirty:4kB writeback:0kB mapped:2528kB shmem:576kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[  238.881927] lowmem_reserve[]: 0 0 0
[  238.881958] Normal: 0*4kB 4*8kB 6*16kB 0*32kB 1*64kB 1*128kB 0*256kB 2*512kB 0*1024kB 0*2048kB 0*4096kB = 1344kB
[  238.882019] HighMem: 6*4kB 2*8kB 4*16kB 4*32kB 1*64kB 1*128kB 0*256kB 2*512kB 3*1024kB 0*2048kB 55*4096kB = 229800kB
[  238.882080] 3610 total pagecache pages
[  238.882080] 0 pages in swap cache
[  238.882080] Swap cache stats: add 0, delete 0, find 0/0
[  238.882110] Free swap  = 0kB
[  238.882110] Total swap = 0kB
[  238.933776] 262144 pages of RAM
[  238.933776] 58240 free pages
[  238.933776] 10503 reserved pages
[  238.933776] 187773 slab pages
[  238.933807] 2475 pages shared
[  238.933807] 0 pages swap cached

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05 10:39:43 -07:00
John W. Linville
a70171dce9 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
Conflicts:
	drivers/net/wireless/libertas/if_cs.c
	drivers/net/wireless/rtlwifi/pci.c
	net/bluetooth/l2cap_sock.c
2011-05-05 13:32:35 -04:00
Mohammed Shafi Shajakhan
eaef6a93bd mac80211: Fix a warning due to skipping tailroom reservation for IV
The devices that require IV generation in software need tailroom
reservation  for ICVs used in TKIP or WEP encryptions.
Currently, decision to skip the tailroom reservation in the tx
path was taken only on whether driver wants MMIC to be generated
in software or not. Following patch appends IV generation check for
such decisions and fixes the following warning.

WARNING: at net/mac80211/wep.c:101 ieee80211_wep_add_iv+0x56/0xf3()
Hardware name: 64756D6
Modules linked in: ath9k ath9k_common ath9k_hw
Pid: 0, comm: swapper Tainted: G        W   2.6.39-rc5-wl
 Call Trace:
[<c102fd29>] warn_slowpath_common+0x65/0x7a
[<c1465c4e>] ? ieee80211_wep_add_iv+0x56/0xf3
[<c102fd4d>] warn_slowpath_null+0xf/0x13
[<c1465c4e>] ieee80211_wep_add_iv+0x56/0xf3
[<c1466007>] ieee80211_crypto_wep_encrypt+0x63/0x88
[<c1478bf3>] ieee80211_tx_h_encrypt+0x2f/0x63
[<c1478cba>] invoke_tx_handlers+0x93/0xe1
[<c1478eda>] ieee80211_tx+0x4b/0x6d
[<c147907c>] ieee80211_xmit+0x180/0x188
[<c147779d>] ? ieee80211_skb_resize+0x95/0xd9
[<c1479edf>] ieee80211_subif_start_xmit+0x64f/0x668
[<c13956fc>] dev_hard_start_xmit+0x368/0x48c
[<c13a8bd6>] sch_direct_xmit+0x4d/0x101
[<c1395ae1>] dev_queue_xmit+0x2c1/0x43f
[<c13a74a2>] ? eth_header+0x1e/0x90
[<c13a7400>] ? eth_type_trans+0x91/0xc2
[<c13a7484>] ? eth_rebuild_header+0x53/0x53
[<c139f079>] neigh_resolve_output+0x223/0x27e
[<c13c6b23>] ip_finish_output2+0x1d4/0x1fe
[<c13c6bc6>] ip_finish_output+0x79/0x7d
[<c13c6cbe>] T.1075+0x43/0x48
[<c13c6e6e>] ip_output+0x75/0x7b
[<c13c4970>] dst_output+0xc/0xe
[<c13c62c9>] ip_local_out+0x17/0x1a
[<c13c67bb>] ip_queue_xmit+0x2aa/0x2f8
[<c138b742>] ? sk_setup_caps+0x21/0x92
[<c13d95ea>] ? __tcp_v4_send_check+0x7e/0xb7
[<c13d5d2e>] tcp_transmit_skb+0x6a1/0x6d7
[<c13d533b>] ? tcp_established_options+0x20/0x8b
[<c13d6f28>] tcp_retransmit_skb+0x43a/0x527
[<c13d8d6d>] tcp_retransmit_timer+0x32e/0x45d
[<c13d8f23>] tcp_write_timer+0x87/0x16c
[<c103a030>] run_timer_softirq+0x156/0x1f9
[<c13d8e9c>] ? tcp_retransmit_timer+0x45d/0x45d
[<c1034d65>] __do_softirq+0x97/0x14a
[<c1034cce>] ? irq_enter+0x4d/0x4d

Cc: Yogesh Powar <yogeshp@marvell.com>
Reported-by: Fabio Rossi <rossi.f@inwind.it>
Tested-by: Fabio Rossi <rossi.f@inwind.it>
Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-05 10:57:23 -04:00
Kurt Van Dijck
c8d55a9d9e can: rename can_try_module_get to can_get_proto
can: rename can_try_module_get to can_get_proto

can_try_module_get does return a struct can_proto.
The name explains what is done in so much detail that a caller
may not notice that a struct can_proto is locked/unlocked.

Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04 14:08:37 -07:00
Kurt Van Dijck
1650629d18 can: make struct can_proto const
commit 53914b6799 had the
same message. That commit did put everything in place but
did not make can_proto const itself.

Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04 14:08:36 -07:00
Eric Dumazet
64f3b9e203 net: ip_expire() must revalidate route
Commit 4a94445c9a (net: Use ip_route_input_noref() in input path)
added a bug in IP defragmentation handling, in case timeout is fired.

When a frame is defragmented, we use last skb dst field when building
final skb. Its dst is valid, since we are in rcu read section.

But if a timeout occurs, we take first queued fragment to build one ICMP
TIME EXCEEDED message. Problem is all queued skb have weak dst pointers,
since we escaped RCU critical section after their queueing. icmp_send()
might dereference a now freed (and possibly reused) part of memory.

Calling skb_dst_drop() and ip_route_input_noref() to revalidate route is
the only possible choice.

Reported-by: Denys Fedoryshchenko <denys@visp.net.lb>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04 14:04:07 -07:00
David S. Miller
5a412ad7f4 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/jkirsher/net-next-2.6 2011-05-04 13:54:50 -07:00
David S. Miller
301102cc83 ipv6: Use flowi4->{daddr,saddr} in ipip6_tunnel_xmit().
Instead of rt->rt_{dst,src}

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04 12:55:07 -07:00
David S. Miller
cbb1e85f9c ipv4: Kill rt->rt_{src, dst} usage in IP GRE tunnels.
First, make callers pass on-stack flowi4 to ip_route_output_gre()
so they can get at the fully resolved flow key.

Next, use that in ipgre_tunnel_xmit() to avoid the need to use
rt->rt_{dst,src}.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04 12:55:07 -07:00
David S. Miller
9a1b9496cd ipv4: Pass explicit saddr/daddr args to ipmr_get_route().
This eliminates the need to use rt->rt_{src,dst}.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04 12:18:54 -07:00
Don Skidmore
6716344c52 ixgbe: Cleanup PCIe bus speed info
PCIe connections should be expressed as GT/s (GigaTransfers per second)
instead of the current Gb/s (Gigabits per second).  In addition, it is
incorrect because (due to PCIe gen 1 & 2 having a 20% overhead) the
actually data rate, when expressed in Gb/s, is only 80% of the rate of
GT/s.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Evan Swanson <evan.swanson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-04 12:18:22 -07:00
Emil Tantilov
68c7005d66 ixgbe: improve EEPROM read/write operations
Introduce buffered read/writes which greatly improves performance on
parts with large EEPROMs.

Previously reading/writing a word requires taking/releasing of synchronization
semaphores which adds 10ms to each operation. The optimization is to
read/write in buffers, but make sure the semaphore is not held for >500ms
according to the datasheet.

Since we can't read the EEPROM page size ixgbe_detect_eeprom_page_size() is
used to discover the EEPROM size when needed and keeps the result in
word_page_size for the rest of the run time.

Use buffered reads for ethtool -e.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Evan Swanson <evan.swanson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-04 12:17:33 -07:00
Emil Tantilov
95a4601184 ixgbe: fix sparse warning
warning: symbol 'before' shadows an earlier one

Convert large macros to functions similar to e1000e.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Acked-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Evan Swanson <evan.swanson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-04 12:16:16 -07:00
Don Skidmore
2698b20842 ixgbe: fix typo error with software defined pins on 82599
Correcting a simple typo with enabling software defined pins.  I don't
believe this was causing any issues but this is how it was meant to be
implemented.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Evan Swanson <evan.swanson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-04 12:15:03 -07:00