Commit Graph

287 Commits

Author SHA1 Message Date
Krishna Kumar
b1424ed910 cxgb3: Fix panic in free_tx_desc()
I got a few of these panics (on 2.6.36-rc7) when running high
number of netperf sessions:

BUG: unable to handle kernel paging request at 0000100000000000
IP: [<ffffffff813125f0>] skb_release_data+0xa0/0xd0
Oops: 0000 [#1] SMP
Pid: 2155, comm: vhost-2115 Not tainted 2.6.36-rc7-ORG #1 49Y6512     /System x3650 M2 -[7947AC1]-
RIP: 0010:[<ffffffff813125f0>]  [<ffffffff813125f0>] skb_release_data+0xa0/0xd0
RSP: 0018:ffff880001803738  EFLAGS: 00010206
RAX: ffff880179b0fc00 RBX: ffff880178b441c0 RCX: 0000000000000000
RSP: 0018:ffff880001803738  EFLAGS: 00010206
RAX: ffff880179b0fc00 RBX: ffff880178b441c0 RCX: 0000000000000000
RDX: ffff880179b0fd40 RSI: 0000000000000000 RDI: 0000100000000000
RBP: ffff880001803748 R08: 0000000000000001 R09: ffff88017f117000
R10: ffff88017b990608 R11: ffff88017f117090 R12: ffff880178b441c0
R13: ffff88017f117090 R14: 0000000000000000 R15: ffff880178b441c0
FS:  0000000000000000(0000) GS:ffff880001800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000100000000000 CR3: 000000017ea64000 CR4: 00000000000026e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process vhost-2115 (pid: 2155, threadinfo ffff88017d872000, task ffff88017e954680)
Stack:
ffff880178b441c0 0000000000000007 ffff880001803768 ffffffff81312119
<0> 0000000000000000 0000000000000002 ffff880001803778 ffffffff813121f9
<0> ffff880001803818 ffffffffa012d14c ffffffffa02de076 ffff880001803700
Call Trace:
<IRQ>
[<ffffffff81312119>] __kfree_skb+0x19/0xa0
[<ffffffff813121f9>] kfree_skb+0x19/0x40
[<ffffffffa012d14c>] free_tx_desc+0x2fc/0x350 [cxgb3]
[<ffffffffa02de076>] ? vhost_poll_wakeup+0x16/0x20 [vhost_net]
[<ffffffffa01323db>] t3_eth_xmit+0x28b/0x380 [cxgb3]
[<ffffffff8131ce47>] dev_hard_start_xmit+0x377/0x5a0
[<ffffffff81335a4a>] sch_direct_xmit+0xfa/0x1d0
[<ffffffff8131d1a9>] dev_queue_xmit+0x139/0x450
[<ffffffff81326225>] neigh_resolve_output+0x125/0x340
[<ffffffff8135a77c>] ip_finish_output+0x14c/0x320
[<ffffffff8135a9fe>] ip_output+0xae/0xc0
[<ffffffff8135620f>] ip_forward_finish+0x3f/0x50
[<ffffffff8135641f>] ip_forward+0x1ff/0x400
[<ffffffff81354789>] ip_rcv_finish+0x119/0x3e0
[<ffffffff81354c7d>] ip_rcv+0x22d/0x300
[<ffffffff8131a95b>] __netif_receive_skb+0x29b/0x570
[<ffffffff8131ba70>] ? netif_receive_skb+0x0/0x80
[<ffffffff8131bae8>] netif_receive_skb+0x78/0x80
[<ffffffffa02a96d8>] br_handle_frame_finish+0x198/0x260 [bridge]
[<ffffffffa02aebc8>] br_nf_pre_routing_finish+0x238/0x380 [bridge]
[<ffffffff813424bc>] ? nf_hook_slow+0x6c/0x100
[<ffffffffa02ae990>] ? br_nf_pre_routing_finish+0x0/0x380 [bridge]
[<ffffffffa02afb08>] br_nf_pre_routing+0x698/0x7a0 [bridge]
[<ffffffff81342414>] nf_iterate+0x64/0xa0
[<ffffffffa02a9540>] ? br_handle_frame_finish+0x0/0x260 [bridge]
[<ffffffff813424bc>] nf_hook_slow+0x6c/0x100
[<ffffffffa02a9540>] ? br_handle_frame_finish+0x0/0x260 [bridge]
[<ffffffffa02a9931>] br_handle_frame+0x191/0x240 [bridge]
[<ffffffffa02a97a0>] ? br_handle_frame+0x0/0x240 [bridge]
[<ffffffff8131a863>] __netif_receive_skb+0x1a3/0x570
[<ffffffff812ef3f6>] ? dma_issue_pending_all+0x76/0xa0
[<ffffffff8131ad32>] process_backlog+0x102/0x200
[<ffffffff8131c2d0>] net_rx_action+0x100/0x220
[<ffffffff810548ef>] __do_softirq+0xaf/0x140
[<ffffffff8100bcdc>] call_softirq+0x1c/0x30
[<ffffffff8100dfc5>] ? do_softirq+0x65/0xa0
[<ffffffff8131c6b8>] netif_rx_ni+0x28/0x30
[<ffffffffa02c305d>] tun_sendmsg+0x2cd/0x4b0 [tun]
[<ffffffffa02e01af>] handle_tx+0x1df/0x340 [vhost_net]
[<ffffffffa02e0340>] handle_tx_kick+0x10/0x20 [vhost_net]
[<ffffffffa02de29b>] vhost_worker+0xbb/0x130 [vhost_net]
[<ffffffffa02de1e0>] ? vhost_worker+0x0/0x130 [vhost_net]
[<ffffffffa02de1e0>] ? vhost_worker+0x0/0x130 [vhost_net]
[<ffffffff81069686>] kthread+0x96/0xa0
[<ffffffff8100bbe4>] kernel_thread_helper+0x4/0x10
[<ffffffff810695f0>] ? kthread+0x0/0xa0
[<ffffffff8100bbe0>] ? kernel_thread_helper+0x0/0x10
Code: 8b 94 24 d0 00 00 00 49 8b 84 24 d8 00 00 00 48 8d 14 10 0f b7 0a 39 d9 7f d1 48 8b 7a 10 48 85 ff 74 20 48 c7 42 10 00 00 00 00 <48> 8b 1f e8 e8 fb ff ff 48 85 db 48 89 df 75 f0 49 8b 84 24 d8

Patch below fixes the panic. cxgb4 and cxgb4vf already have this fix.

Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-28 10:27:02 -07:00
Nishanth Aravamudan
69dcfc8aad cxgb3: fix crash due to manipulating queues before registration
Along the same lines as "cxgb4: fix crash due to manipulating queues
before registration" (8f6d9f4047), before
commit "net: allocate tx queues in register_netdevice"
netif_tx_stop_all_queues and related functions could be used between
device allocation and registration but now only after registration.
cxgb4 has such a call before registration and crashes now.  Move it
after register_netdev.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: eric.dumazet@gmail.com
Cc: sonnyrao@us.ibm.com
Cc: Divy Le Ray <divy@chelsio.com>
Cc: Dimitris Michailidis <dm@chelsio.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Nishanth Aravamudan <nacc@us.ibm.com>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-28 10:27:02 -07:00
Divy Le Ray
18edc84cf1 cxgb3: fix device opening error path
Only negative return from bind_qsets() should be considered an error and
propagated.
It fixes an issue reported by IBM on P Series platform.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Tested-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-25 12:14:09 -07:00
stephen hemminger
a5190b4eea cxgb3: function namespace cleanup
Make local functions static. Remove functions that are
defined and never used. Compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-21 07:19:02 -07:00
Jesse Gross
eab6d18d20 vlan: Don't check for vlan group before vlan_tx_tag_present.
Many (but not all) drivers check to see whether there is a vlan
group configured before using a tag stored in the skb.  There's
not much point in this check since it just throws away data that
should only be present in the expected circumstances.  However,
it will soon be legal and expected to get a vlan tag when no
vlan group is configured, so remove this check from all drivers
to avoid dropping the tags.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-21 01:26:52 -07:00
Ben Hutchings
19221e75da cxgb3: Use netif_set_real_num_{rx,tx}_queues()
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-27 22:09:51 -07:00
David S. Miller
e40051d134 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/qlcnic/qlcnic_init.c
	net/ipv4/ip_output.c
2010-09-27 01:03:03 -07:00
Eric Dumazet
807540baae drivers/net: return operator cleanup
Change "return (EXPR);" to "return EXPR;"

return is not a function, parentheses are not required.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-26 18:34:29 -07:00
Dan Rosenberg
49c37c0334 drivers/net/cxgb3/cxgb3_main.c: prevent reading uninitialized stack memory
Fixed formatting (tabs and line breaks).

The CHELSIO_GET_QSET_NUM device ioctl allows unprivileged users to read
4 bytes of uninitialized stack memory, because the "addr" member of the
ch_reg struct declared on the stack in cxgb_extension_ioctl() is not
altered or zeroed before being copied back to the user.  This patch
takes care of it.

Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-16 21:55:00 -07:00
Andreas Schwab
70ce679be6 net/cxgb3: remove undefined operations
Modifying an object twice without an intervening sequence point is
undefined.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-13 20:02:51 -07:00
Casey Leedom
55bc3228cc cxgb3: Avoid flush_workqueue() deadlock.
Don't call flush_workqueue() on the cxgb3 Work Queue in cxgb_down() when
we're being called from the fatal error task ... which is executing on the
cxgb3 Work Queue.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-03 10:03:51 -07:00
Casey Leedom
aa47632102 cxgb3: Leave interrupts for fatal errors asserted in common code.
Platform code needs to deal with them now.

Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-03 10:03:51 -07:00
Casey Leedom
e05e6a397c cxgb3: Set FATALPERREN.
Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-03 10:03:50 -07:00
Casey Leedom
96e4a38752 cxgb3: Add register bit definition for Fatal Parity Error.
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-03 10:03:50 -07:00
Eric Dumazet
bc8acf2c8c drivers/net: avoid some skb->ip_summed initializations
fresh skbs have ip_summed set to CHECKSUM_NONE (0)

We can avoid setting again skb->ip_summed to CHECKSUM_NONE in drivers.

Introduce skb_checksum_none_assert() helper so that we keep this
assertion documented in driver sources.

Change most occurrences of :

skb->ip_summed = CHECKSUM_NONE;

by :

skb_checksum_none_assert(skb);

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-02 19:06:22 -07:00
Kulikov Vasiliy
7aaaaa1e44 cxgb3: do not use PCI resources before pci_enable_device()
IRQ and resource[] may not have correct values until
after PCI hotplug setup occurs at pci_enable_device() time.

The semantic match that finds this problem is as follows:

// <smpl>
@@
identifier x;
identifier request ~= "pci_request.*|pci_resource.*";
@@

(
* x->irq
|
* x->resource
|
* request(x, ...)
)
 ...
*pci_enable_device(x)
// </smpl>

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-04 16:18:02 -07:00
Andy Shevchenko
df1086fb2e drivers/net/cxgb3/t3_hw.c: use new hex_to_bin() method
Get rid of own implementation of hex_to_bin().

Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Acked-by: Divy Le Ray <divy@chelsio.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-21 11:16:09 -07:00
FUJITA Tomonori
122e28ebac cxgb3: simplify need_skb_unmap
We can use CONFIG_NEED_DMA_MAP_STATE to see if a platform does real
DMA unmapping.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-08 23:12:27 -07:00
Divy Le Ray
d05f6cf01c cxgb3: request 7.10 firmware
The driver requests FW 7.10
Bump up driver version.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25 21:33:13 -07:00
Julia Lawall
c5dc9a3581 drivers/net/cxgb3: Use memdup_user
Use memdup_user when user data is immediately copied into the
allocated region.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@

-  to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+  to = memdup_user(from,size);
   if (
-      to==NULL
+      IS_ERR(to)
                 || ...) {
   <+... when != goto l1;
-  -ENOMEM
+  PTR_ERR(to)
   ...+>
   }
-  if (copy_from_user(to, from, size) != 0) {
-    <+... when != goto l2;
-    -EFAULT
-    ...+>
-  }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-31 00:24:13 -07:00
Joe Perches
a4b770972b drivers/net: Remove unnecessary returns from void function()s
This patch removes from drivers/net/ all the unnecessary
return; statements that precede the last closing brace of
void functions.

It does not remove the returns that are immediately
preceded by a label as gcc doesn't like that.

It also does not remove null void functions with return.

Done via:
$ grep -rP --include=*.[ch] -l "return;\n}" net/ | \
  xargs perl -i -e 'local $/ ; while (<>) { s/\n[ \t\n]+return;\n}/\n}/g; print; }'

with some cleanups by hand.

Compile tested x86 allmodconfig only.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-14 00:19:28 -07:00
David S. Miller
e1703b36c3 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/e100.c
	drivers/net/e1000e/netdev.c
2010-04-27 12:49:13 -07:00
Andre Detsch
e95ef5d3f6 cxgb3: Wait longer for control packets on initialization
In some Power7 platforms, when using VIOS (Virtual I/O Server), we
need to wait longer for control packets to finish transfer during
initialization.
Without this change, initialization may fail prematurely.

Signed-off-by: Wen Xiong <wenxiong@us.ibm.com>
Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27 10:18:27 -07:00
Hiroshi Shimamoto
9441cad99b cxgb3: fix linkup issue
I encountered an issue that not to link up on cxgb3 fabric.
I bisected and found that this regression was introduced by
0f07c4ee8c.

Correct to pass phy_addr to cphy_init() at t3_xaui_direct_phy_prep().

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-21 16:34:41 -07:00
FUJITA Tomonori
56e3b9df13 cxgb3: use the DMA state API instead of the pci equivalents
This replace the PCI DMA state API (include/linux/pci-dma.h) with the
DMA equivalents since the PCI DMA state API will be obsolete.

No functional change.

For further information about the background:

http://marc.info/?l=linux-netdev&m=127037540020276&w=2

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-13 02:54:18 -07:00
David S. Miller
871039f02f Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/stmmac/stmmac_main.c
	drivers/net/wireless/wl12xx/wl1271_cmd.c
	drivers/net/wireless/wl12xx/wl1271_main.c
	drivers/net/wireless/wl12xx/wl1271_spi.c
	net/core/ethtool.c
	net/mac80211/scan.c
2010-04-11 14:53:53 -07:00
Jiri Pirko
22bedad3ce net: convert multicast list to list_head
Converts the list and the core manipulating with it to be the same as uc_list.

+uses two functions for adding/removing mc address (normal and "global"
 variant) instead of a function parameter.
+removes dev_mcast.c completely.
+exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for
 manipulation with lists on a sandbox (used in bonding and 80211 drivers)

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-03 14:22:15 -07:00
Tejun Heo
5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Linus Torvalds
d89b218b80 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (108 commits)
  bridge: ensure to unlock in error path in br_multicast_query().
  drivers/net/tulip/eeprom.c: fix bogus "(null)" in tulip init messages
  sky2: Avoid rtnl_unlock without rtnl_lock
  ipv6: Send netlink notification when DAD fails
  drivers/net/tg3.c: change the field used with the TG3_FLAG_10_100_ONLY constant
  ipconfig: Handle devices which take some time to come up.
  mac80211: Fix memory leak in ieee80211_if_write()
  mac80211: Fix (dynamic) power save entry
  ipw2200: use kmalloc for large local variables
  ath5k: read eeprom IQ calibration values correctly for G mode
  ath5k: fix I/Q calibration (for real)
  ath5k: fix TSF reset
  ath5k: use fixed antenna for tx descriptors
  libipw: split ieee->networks into small pieces
  mac80211: Fix sta_mtx unlocking on insert STA failure path
  rt2x00: remove KSEG1ADDR define from rt2x00soc.h
  net: add ColdFire support to the smc91x driver
  asix: fix setting mac address for AX88772
  ipv6 ip6_tunnel: eliminate unused recursion field from ip6_tnl{}.
  net: Fix dev_mc_add()
  ...
2010-03-13 14:50:18 -08:00
Jiri Kosina
318ae2edc3 Merge branch 'for-next' into for-linus
Conflicts:
	Documentation/filesystems/proc.txt
	arch/arm/mach-u300/include/mach/debug-macro.S
	drivers/net/qlge/qlge_ethtool.c
	drivers/net/qlge/qlge_main.c
	drivers/net/typhoon.c
2010-03-08 16:55:37 +01:00
Divy Le Ray
a6f018e324 cxgb3: fix hot plug removal crash
queue restart tasklets need to be stopped after napi handlers are stopped
since the latter can restart them.  So stop them after stopping napi.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-04 00:53:54 -08:00
Linus Torvalds
3ff1562ea4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (48 commits)
  IB/srp: Clean up error path in srp_create_target_ib()
  IB/srp: Split send and recieve CQs to reduce number of interrupts
  RDMA/nes: Add support for KR device id 0x0110
  IB/uverbs: Use anon_inodes instead of private infinibandeventfs
  IB/core: Fix and clean up ib_ud_header_init()
  RDMA/cxgb3: Mark RDMA device with CXIO_ERROR_FATAL when removing
  RDMA/cxgb3: Don't allocate the SW queue for user mode CQs
  RDMA/cxgb3: Increase the max CQ depth
  RDMA/cxgb3: Doorbell overflow avoidance and recovery
  IB/core: Pack struct ib_device a little tighter
  IB/ucm: Clean whitespace errors
  IB/ucm: Increase maximum devices supported
  IB/ucm: Use stack variable 'base' in ib_ucm_add_one
  IB/ucm: Use stack variable 'devnum' in ib_ucm_add_one
  IB/umad: Clean whitespace
  IB/umad: Increase maximum devices supported
  IB/umad: Use stack variable 'base' in ib_umad_init_port
  IB/umad: Use stack variable 'devnum' in ib_umad_init_port
  IB/umad: Remove port_table[]
  IB/umad: Convert *cdev to cdev in struct ib_umad_port
  ...
2010-03-03 07:33:17 -08:00
Steve Wise
e998f245c4 RDMA/cxgb3: Doorbell overflow avoidance and recovery
T3 hardware doorbell FIFO overflows can cause application stalls due
to lost doorbell ring events.  This has been seen when running large
NP IMB alltoall MPI jobs.  The T3 hardware supports an xon/xoff-type
flow control mechanism to help avoid overflowing the HW doorbell FIFO.

This patch uses these interrupts to disable RDMA QP doorbell rings
when we near an overflow condition, and then turn them back on (and
ring all the active QP doorbells) when when the doorbell FIFO empties
out.  In addition if an doorbell ring is dropped by the hardware, the
code will now recover.

Design:

cxgb3:
- enable these DB interrupts
- in the interrupt handler, schedule work tasks to call the ULPs event
  handlers with the new events.
- ring all the qset txqs when an overflow is detected.

iw_cxgb3:
- disable db ringing on all active qps when we get the DB_FULL event
- enable db ringing on all active qps and ring all active dbs when we get
  the DB_EMPTY event
- On DB_DROP event:
       - disable db rings in the event handler
       - delay-schedule a work task which rings and enables the dbs on
         all active qps.
- in post_send and post_recv logic, don't ring the db if it's disabled.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-02-24 10:40:28 -08:00
Jiri Pirko
0988d26978 cxgb3: convert to use netdev_for_each_addr
Removed whole t3_rx_mode structure and appropriate helpers cause they are no
longer needed.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-17 15:59:48 -08:00
Divy Le Ray
e9449d85c6 cxgb3: fix link flap
The driver is expected to report that the link is up
when the phy Rx signal is established and the mac
has not detected a link fault.
The code is however broken, the driver does not check the link fault
status when the phy link status changes.
The link fault status being checked within a short period of time,
it leads to link up/link down events.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-15 21:49:48 -08:00
Divy Le Ray
38a8fc0fcf cxgb3: FIx VLAN over Jumbo frames
The mac is expected to auto-inflate the Maximum Frame size for VLAN
tagged frames. It however does not work with jumbo frames.
Work around the bug adding 4 to the Maximum Frame for MTUs
greater than 1536.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-15 21:49:48 -08:00
David S. Miller
b1109bf085 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-02-09 11:44:44 -08:00
Divy Le Ray
2d171886b1 cxgb3: fix GRO checksum check
Verify the HW checksum state for frames handed to GRO processing.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-08 22:37:24 -08:00
Stefan Weil
947af29435 Fix spelling of 'platform' in comments and doc
Replace platfrom -> platform.

This is a frequent spelling bug.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-02-05 12:22:34 +01:00
Divy Le Ray
2e02644abc cxgb3: add memory barriers
Add memory barriers to fix crashes observed on newest PowerPC platforms.
The HW and driver state of the receive rings were getting out of sync.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-03 18:37:10 -08:00
Alexey Dobriyan
a3aa18842a drivers/net/: use DEFINE_PCI_DEVICE_TABLE()
Use DEFINE_PCI_DEVICE_TABLE() so we get place PCI ids table into correct section
in every case.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07 23:54:26 -08:00
Julia Lawall
75ed0a8972 drivers/net/cxgb3: Use kzalloc for allocating only one thing
Use kzalloc rather than kcalloc(1,...)

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
@@

- kcalloc(1,
+ kzalloc(
          ...)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-03 21:22:28 -08:00
David S. Miller
501706565b Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
	include/net/tcp.h
2009-12-11 17:12:17 -08:00
Breno Leitao
ccdddf500f cxgb3: Fixing EEH handlers
After commit 4b77b0a2ba ("PCI: Clear
saved_state after the state has been restored"), the EEH is not
working proplery on cxgb3.

This patch fixes it, always saving the PCI state after a recovery,
in order to allow further reoveries.

Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-11 15:07:56 -08:00
Linus Torvalds
4ef58d4e2a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (42 commits)
  tree-wide: fix misspelling of "definition" in comments
  reiserfs: fix misspelling of "journaled"
  doc: Fix a typo in slub.txt.
  inotify: remove superfluous return code check
  hdlc: spelling fix in find_pvc() comment
  doc: fix regulator docs cut-and-pasteism
  mtd: Fix comment in Kconfig
  doc: Fix IRQ chip docs
  tree-wide: fix assorted typos all over the place
  drivers/ata/libata-sff.c: comment spelling fixes
  fix typos/grammos in Documentation/edac.txt
  sysctl: add missing comments
  fs/debugfs/inode.c: fix comment typos
  sgivwfb: Make use of ARRAY_SIZE.
  sky2: fix sky2_link_down copy/paste comment error
  tree-wide: fix typos "couter" -> "counter"
  tree-wide: fix typos "offest" -> "offset"
  fix kerneldoc for set_irq_msi()
  spidev: fix double "of of" in comment
  comment typo fix: sybsystem -> subsystem
  ...
2009-12-09 19:43:33 -08:00
Jiri Kosina
d014d04386 Merge branch 'for-next' into for-linus
Conflicts:

	kernel/irq/chip.c
2009-12-07 18:36:35 +01:00
André Goddard Rosa
af901ca181 tree-wide: fix assorted typos all over the place
That is "success", "unknown", "through", "performance", "[re|un]mapping"
, "access", "default", "reasonable", "[con]currently", "temperature"
, "channel", "[un]used", "application", "example","hierarchy", "therefore"
, "[over|under]flow", "contiguous", "threshold", "enough" and others.

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-12-04 15:39:55 +01:00
Joe Perches
8e95a2026f drivers/net: Move && and || to end of previous line
Only files where David Miller is the primary git-signer.
wireless, wimax, ixgbe, etc are not modified.

Compile tested x86 allyesconfig only
Not all files compiled (not x86 compatible)

Added a few > 80 column lines, which I ignored.
Existing checkpatch complaints ignored.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-03 13:18:01 -08:00
David S. Miller
3505d1a9fd Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/sfc/sfe4001.c
	drivers/net/wireless/libertas/cmd.c
	drivers/staging/Kconfig
	drivers/staging/Makefile
	drivers/staging/rtl8187se/Kconfig
	drivers/staging/rtl8192e/Kconfig
2009-11-18 22:19:03 -08:00
Divy Le Ray
70e3bb504c cxgb3: fix premature page unmap
unmap Rx page only when guaranteed that this page won't be
used anymore to allocate rx page chunks.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-18 05:11:14 -08:00