Refrain from attempting to free an interrupt line if the request
fails and hence, there is no IRQ to free.
CC: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The dev_id parameter passed to free_irq needs to match the one passed
to the corresponding request_irq.
Signed-off-by: Matt Renzelmann <mjr@cs.wisc.edu>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is a potential deadlock scenario when the ks8851 driver
is removed. The interrupt handler schedules a workqueue which
acquires a mutex that ks8851_net_stop() also acquires before
flushing the workqueue. Previously lockdep wouldn't be able
to find this problem but now that it has the support we can
trigger this lockdep warning by rmmoding the driver after
an ifconfig up.
Fix the possible deadlock by disabling the interrupts in
the chip and then release the lock across the workqueue
flushing. The mutex is only there to proect the registers
anyway so this should be ok.
=======================================================
[ INFO: possible circular locking dependency detected ]
3.0.21-00021-g8b33780-dirty #2911
-------------------------------------------------------
rmmod/125 is trying to acquire lock:
((&ks->irq_work)){+.+...}, at: [<c019e0b8>] flush_work+0x0/0xac
but task is already holding lock:
(&ks->lock){+.+...}, at: [<bf00b850>] ks8851_net_stop+0x64/0x138 [ks8851]
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&ks->lock){+.+...}:
[<c01b89c8>] __lock_acquire+0x940/0x9f8
[<c01b9058>] lock_acquire+0x10c/0x130
[<c083dbec>] mutex_lock_nested+0x68/0x3dc
[<bf00bd48>] ks8851_irq_work+0x24/0x46c [ks8851]
[<c019c580>] process_one_work+0x2d8/0x518
[<c019cb98>] worker_thread+0x220/0x3a0
[<c01a2ad4>] kthread+0x88/0x94
[<c0107008>] kernel_thread_exit+0x0/0x8
-> #0 ((&ks->irq_work)){+.+...}:
[<c01b7984>] validate_chain+0x914/0x1018
[<c01b89c8>] __lock_acquire+0x940/0x9f8
[<c01b9058>] lock_acquire+0x10c/0x130
[<c019e104>] flush_work+0x4c/0xac
[<bf00b858>] ks8851_net_stop+0x6c/0x138 [ks8851]
[<c06b209c>] __dev_close_many+0x98/0xcc
[<c06b2174>] dev_close_many+0x68/0xd0
[<c06b22ec>] rollback_registered_many+0xcc/0x2b8
[<c06b2554>] rollback_registered+0x28/0x34
[<c06b25b8>] unregister_netdevice_queue+0x58/0x7c
[<c06b25f4>] unregister_netdev+0x18/0x20
[<bf00c1f4>] ks8851_remove+0x64/0xb4 [ks8851]
[<c049ddf0>] spi_drv_remove+0x18/0x1c
[<c0468e98>] __device_release_driver+0x7c/0xbc
[<c0468f64>] driver_detach+0x8c/0xb4
[<c0467f00>] bus_remove_driver+0xb8/0xe8
[<c01c1d20>] sys_delete_module+0x1e8/0x27c
[<c0105ec0>] ret_fast_syscall+0x0/0x3c
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ks->lock);
lock((&ks->irq_work));
lock(&ks->lock);
lock((&ks->irq_work));
*** DEADLOCK ***
4 locks held by rmmod/125:
#0: (&__lockdep_no_validate__){+.+.+.}, at: [<c0468f44>] driver_detach+0x6c/0xb4
#1: (&__lockdep_no_validate__){+.+.+.}, at: [<c0468f50>] driver_detach+0x78/0xb4
#2: (rtnl_mutex){+.+.+.}, at: [<c06b25e8>] unregister_netdev+0xc/0x20
#3: (&ks->lock){+.+...}, at: [<bf00b850>] ks8851_net_stop+0x64/0x138 [ks8851]
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The sp_pri_to_cos[] array size depends on the config but lets say it is
BX_E3B0_MAX_NUM_COS_PORT0 and max_num_of_cos is also
DCBX_E3B0_MAX_NUM_COS_PORT0. In the original code
"pri == max_num_of_cos" was accepted but it is one past the end of the
array.
Also we used "pri" before capping it. It's a harmless read past the end
of the array, but it would affect which error message gets printed.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
MAX_ADDR_LEN is 32. ETH_ALEN is 6. mac->sa_data is a 14 byte array, so
the memcpy() is doing a read past the end of the array. I asked about
this on netdev and Ben Hutchings told me it's supposed to be copying
ETH_ALEN bytes (thanks Ben).
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Under heavy load (flood ping) it is possible for the MDIO timeout to
expire before the loop checks the GO bit again. This patch adds an
additional check whether the operation was done before actually
returning -ETIMEDOUT.
To reproduce this bug, flood ping the device, e.g., ping -f -l 1000
After some time, a "timed out waiting for user access" warning
may appear. And even worse, link may go down since the PHY reported a
timeout.
Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: <stable@vger.kernel.org>
Cc: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch makes it so that we identify FCoE rings earlier than
ixgbe_set_rx_buffer_len. Instead we identify the Rx FCoE rings at
allocation time in ixgbe_alloc_q_vector.
The motivation behind this change is to avoid memory corruption when FCoE
is enabled. Without this change we were initializing the rings at 0, and
2K on systems with 4K pages, then when we bumped the buffer size to 4K with
order 1 pages we were accessing offsets 2K and 6K instead of 0 and 4K.
This was resulting in memory corruptions.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Yi Zou <yi.zou@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Upon resume from standby, ixgbe may trigger the ASSERT_RTNL() in
netif_set_real_num_tx_queues(). The call stack is:
netif_set_real_num_tx_queues
ixgbe_set_num_queues
ixgbe_init_interrupt_scheme
ixgbe_resume
Signed-off-by: Benjamin Poirier <bpoirier@suse.de>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
At the beginning of ks_rcv(), a for loop retrieves the
header information relevant to all the frames stored
in the mac's internal buffers. The number of pending
frames is stored as an 8 bits field in KS_RXFCTR.
If interrupts are disabled long enough to allow for more than
32 frames to accumulate in the MAC's internal buffers, a buffer
overflow occurs.
This patch fixes the problem by making the
driver's frame_head_info buffer big enough.
Well actually, since the chip appears to have 12K of
internal rx buffers and the shortest ethernet frame should
be 64 bytes long, maybe the limit could be set to
12*1024/64 = 192 frames, but 255 should be safer.
Signed-off-by: Davide Ciminaghi <ciminaghi@gnudd.com>
Signed-off-by: Raffaele Recalcati <raffaele.recalcati@bticino.it>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are times we turn of the laser before shutdown. This is a bad thing
if we want to wake on lan to work so now we make sure the laser is on
before shutdown if we support WoL.
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
A workaround was previously put in the driver to reset the device when
transitioning to Sx in order to activate the changed settings of the PHY
OEM bits (Low Power Link Up, or LPLU, and GbE disable configuration) for
82577/8/9 devices. After further review, it was found such a reset can
cause the 82579 to confuse which version of 82579 it actually is and broke
LPLU on all 82577/8/9 devices. The workaround during an S0->Sx transition
on 82579 (instead of resetting the PHY) is to restart auto-negotiation
after the OEM bits are configured; the restart of auto-negotiation
activates the new OEM bits as does the reset. With 82577/8, the reset is
changed to a generic reset which fixes the LPLU bits getting set wrong.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The SMSC911x driver resets the ->head, ->data and ->tail pointers in the
skb on the reset path in order to avoid buffer overflow due to packet
padding performed by the hardware.
This patch fixes the receive path so that the skb pointers are fixed up
after the data has been read from the device, The error path is also
fixed to use number of words consistently and prevent erroneous FIFO
fastforwarding when skipping over bad data.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move the ks8851_rdreg16 call above the call to request_irq and cache
the result for subsequent repeated use. A spurious interrupt may
otherwise cause a crash. Thanks to Stephen Boyd, Flavio Leitner, and
Ben Hutchings for feedback.
Signed-off-by: Matt Renzelmann <mjr@cs.wisc.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Also fix MAINTAINERS file to reflect autorship.
Daniel and Ariane changed coding style but not any functional changes in the driver
itself.
Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
We set intr mask before its handler is registered, this does not work well when
8139cp is sharing irq line with other devices. As the irq could be enabled by
the device before 8139cp's hander is registered which may lead unhandled
irq. Fix this by introducing an helper cp_irq_enable() and call it after
request_irq().
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Problem:
There was two separate work_struct structures which share one
handler. Unfortunately getting atl1_adapter structure from
work_struct in case of DMA error was done from incorrect
offset which cause kernel panics.
Solution:
The useless work_struct for DMA error removed and
handler name changed to more generic one.
Signed-off-by: Tony Zelenoff <antonz@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull arch/tile bug fixes from Chris Metcalf:
"This includes Paul Gortmaker's change to fix the <asm/system.h>
disintegration issues on tile, a fix to unbreak the tilepro ethernet
driver, and a backlog of bugfix-only changes from internal Tilera
development over the last few months.
They have all been to LKML and on linux-next for the last few days.
The EDAC change to MAINTAINERS is an oddity but discussion on the
linux-edac list suggested I ask you to pull that change through my
tree since they don't have a tree to pull edac changes from at the
moment."
* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: (39 commits)
drivers/net/ethernet/tile: fix netdev_alloc_skb() bombing
MAINTAINERS: update EDAC information
tilepro ethernet driver: fix a few minor issues
tile-srom.c driver: minor code cleanup
edac: say "TILEGx" not "TILEPro" for the tilegx edac driver
arch/tile: avoid accidentally unmasking NMI-type interrupt accidentally
arch/tile: remove bogus performance optimization
arch/tile: return SIGBUS for addresses that are unaligned AND invalid
arch/tile: fix finv_buffer_remote() for tilegx
arch/tile: use atomic exchange in arch_write_unlock()
arch/tile: stop mentioning the "kvm" subdirectory
arch/tile: export the page_home() function.
arch/tile: fix pointer cast in cacheflush.c
arch/tile: fix single-stepping over swint1 instructions on tilegx
arch/tile: implement panic_smp_self_stop()
arch/tile: add "nop" after "nap" to help GX idle power draw
arch/tile: use proper memparse() for "maxmem" options
arch/tile: fix up locking in pgtable.c slightly
arch/tile: don't leak kernel memory when we unload modules
arch/tile: fix bug in delay_backoff()
...
Pull networking updates from David Miller:
1) Fix inaccuracies in network driver interface documentation, from Ben
Hutchings.
2) Fix handling of negative offsets in BPF JITs, from Jan Seiffert.
3) Compile warning, locking, and refcounting fixes in netfilter's
xt_CT, from Pablo Neira Ayuso.
4) phonet sendmsg needs to validate user length just like any other
datagram protocol, fix from Sasha Levin.
5) Ipv6 multicast code uses wrong loop index, from RongQing Li.
6) Link handling and firmware fixes in bnx2x driver from Yaniv Rosner
and Yuval Mintz.
7) mlx4 erroneously allocates 4 pages at a time, regardless of page
size, fix from Thadeu Lima de Souza Cascardo.
8) SCTP socket option wasn't extended in a backwards compatible way,
fix from Thomas Graf.
9) Add missing address change event emissions to bonding, from Shlomo
Pongratz.
10) /proc/net/dev regressed because it uses a private offset to track
where we are in the hash table, but this doesn't track the offset
pullback that the seq_file code does resulting in some entries being
missed in large dumps.
Fix from Eric Dumazet.
11) do_tcp_sendpage() unloads the send queue way too fast, because it
invokes tcp_push() when it shouldn't. Let the natural sequence
generated by the splice paths, and the assosciated MSG_MORE
settings, guide the tcp_push() calls.
Otherwise what goes out of TCP is spaghetti and doesn't batch
effectively into GSO/TSO clusters.
From Eric Dumazet.
12) Once we put a SKB into either the netlink receiver's queue or a
socket error queue, it can be consumed and freed up, therefore we
cannot touch it after queueing it like that.
Fixes from Eric Dumazet.
13) PPP has this annoying behavior in that for every transmit call it
immediately stops the TX queue, then calls down into the next layer
to transmit the PPP frame.
But if that next layer can take it immediately, it just un-stops the
TX queue right before returning from the transmit method.
Besides being useless work, it makes several facilities unusable, in
particular things like the equalizers. Well behaved devices should
only stop the TX queue when they really are full, and in PPP's case
when it gets backlogged to the downstream device.
David Woodhouse therefore fixed PPP to not stop the TX queue until
it's downstream can't take data any more.
14) IFF_UNICAST_FLT got accidently lost in some recent stmmac driver
changes, re-add. From Marc Kleine-Budde.
15) Fix link flaps in ixgbe, from Eric W. Multanen.
16) Descriptor writeback fixes in e1000e from Matthew Vick.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (47 commits)
net: fix a race in sock_queue_err_skb()
netlink: fix races after skb queueing
doc, net: Update ndo_start_xmit return type and values
doc, net: Remove instruction to set net_device::trans_start
doc, net: Update netdev operation names
doc, net: Update documentation of synchronisation for TX multiqueue
doc, net: Remove obsolete reference to dev->poll
ethtool: Remove exception to the requirement of holding RTNL lock
MAINTAINERS: update for Marvell Ethernet drivers
bonding: properly unset current_arp_slave on slave link up
phonet: Check input from user before allocating
tcp: tcp_sendpages() should call tcp_push() once
ipv6: fix array index in ip6_mc_add_src()
mlx4: allocate just enough pages instead of always 4 pages
stmmac: re-add IFF_UNICAST_FLT for dwmac1000
bnx2x: Clear MDC/MDIO warning message
bnx2x: Fix BCM57711+BCM84823 link issue
bnx2x: Clear BCM84833 LED after fan failure
bnx2x: Fix BCM84833 PHY FW version presentation
bnx2x: Fix link issue for BCM8727 boards.
...
Merge batch of fixes from Andrew Morton:
"The simple_open() cleanup was held back while I wanted for laggards to
merge things.
I still need to send a few checkpoint/restore patches. I've been
wobbly about merging them because I'm wobbly about the overall
prospects for success of the project. But after speaking with Pavel
at the LSF conference, it sounds like they're further toward
completion than I feared - apparently davem is at the "has stopped
complaining" stage regarding the net changes. So I need to go back
and re-review those patchs and their (lengthy) discussion."
* emailed from Andrew Morton <akpm@linux-foundation.org>: (16 patches)
memcg swap: use mem_cgroup_uncharge_swap fix
backlight: add driver for DA9052/53 PMIC v1
C6X: use set_current_blocked() and block_sigmask()
MAINTAINERS: add entry for sparse checker
MAINTAINERS: fix REMOTEPROC F: typo
alpha: use set_current_blocked() and block_sigmask()
simple_open: automatically convert to simple_open()
scripts/coccinelle/api/simple_open.cocci: semantic patch for simple_open()
libfs: add simple_open()
hugetlbfs: remove unregister_filesystem() when initializing module
drivers/rtc/rtc-88pm860x.c: fix rtc irq enable callback
fs/xattr.c:setxattr(): improve handling of allocation failures
fs/xattr.c:listxattr(): fall back to vmalloc() if kmalloc() failed
fs/xattr.c: suppress page allocation failure warnings from sys_listxattr()
sysrq: use SEND_SIG_FORCED instead of force_sig()
proc: fix mount -t proc -o AAA
Many users of debugfs copy the implementation of default_open() when
they want to support a custom read/write function op. This leads to a
proliferation of the default_open() implementation across the entire
tree.
Now that the common implementation has been consolidated into libfs we
can replace all the users of this function with simple_open().
This replacement was done with the following semantic patch:
<smpl>
@ open @
identifier open_f != simple_open;
identifier i, f;
@@
-int open_f(struct inode *i, struct file *f)
-{
(
-if (i->i_private)
-f->private_data = i->i_private;
|
-f->private_data = i->i_private;
)
-return 0;
-}
@ has_open depends on open @
identifier fops;
identifier open.open_f;
@@
struct file_operations fops = {
...
-.open = open_f,
+.open = simple_open,
...
};
</smpl>
[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The driver uses a 2-order allocation, which is too much on architectures
like ppc64, which has a 64KiB page. This particular allocation is used
for large packet fragments that may have a size of 512, 1024, 4096 or
fill the whole allocation. So, a minimum size of 16384 is good enough
and will be the same size that is used in architectures of 4KiB sized
pages.
This will avoid allocation failures that we see when the system is under
stress, but still has plenty of memory, like the one below.
This will also allow us to set the interface MTU to higher values like
9000, which was not possible on ppc64 without this patch.
Node 1 DMA: 737*64kB 37*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB 0*8192kB 0*16384kB = 51904kB
83137 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 10420096kB
Total swap = 10420096kB
107776 pages RAM
1184 pages reserved
147343 pages shared
28152 pages non-shared
netstat: page allocation failure. order:2, mode:0x4020
Call Trace:
[c0000001a4fa3770] [c000000000012f04] .show_stack+0x74/0x1c0 (unreliable)
[c0000001a4fa3820] [c00000000016af38] .__alloc_pages_nodemask+0x618/0x930
[c0000001a4fa39a0] [c0000000001a71a0] .alloc_pages_current+0xb0/0x170
[c0000001a4fa3a40] [d00000000dcc3e00] .mlx4_en_alloc_frag+0x200/0x240 [mlx4_en]
[c0000001a4fa3b10] [d00000000dcc3f8c] .mlx4_en_complete_rx_desc+0x14c/0x250 [mlx4_en]
[c0000001a4fa3be0] [d00000000dcc4eec] .mlx4_en_process_rx_cq+0x62c/0x850 [mlx4_en]
[c0000001a4fa3d20] [d00000000dcc5150] .mlx4_en_poll_rx_cq+0x40/0x90 [mlx4_en]
[c0000001a4fa3dc0] [c0000000004e2bb8] .net_rx_action+0x178/0x450
[c0000001a4fa3eb0] [c00000000009c9b8] .__do_softirq+0x118/0x290
[c0000001a4fa3f90] [c000000000031df8] .call_do_softirq+0x14/0x24
[c000000184c3b520] [c00000000000e700] .do_softirq+0xf0/0x110
[c000000184c3b5c0] [c00000000009c6d4] .irq_exit+0xb4/0xc0
[c000000184c3b640] [c00000000000e964] .do_IRQ+0x144/0x230
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Tested-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit (bfab27a stmmac: add the experimental PCI support) the
IFF_UNICAST_FLT flag has been removed from the stmmac_mac_device_setup()
function. This patch re-adds the flag.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch clears a warning message of "MDC/MDIO access timeout" which may
appear when interface is loaded due to missing clock setting before resetting
the LED, and starting periodic function too early.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix a link problem on the second port of BCM57711 + BCM84823 boards due to
incorrect macro usage.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes a link problem on BCM57712 + BCM8727 designs in which the TX
laser is controller by GPIO, after 1.60.xx drivers were previously loaded.
On these designs the TX_LASER is enabled by logic AND between the PHY
(through MDIO), and the GPIO. When an old driver is used, it disables the
MDIO part, hence the GPIO control had no affect de facto.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix no-LED problem when link speed is 1G on BCM57712 + BCM8727 designs, by
removing a logic error checking for a different PHY.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix 578x0-SFI pre-emphasis settings per HW recommendations to achieve better
link strength.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
BCM57810-KR link may not come up in 1G after running loopback test, so set
the relevant registers to their default values before starting KR autoneg.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix 57810-KR flow-control handling link is achieved via CL37 AN.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix a problem in which PFC frames are not honored, due to incorrect link
attributes synchronization following PMF migration, and verify PFC XON is not
stuck from previous link change.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Modified from original patch from Chris.
The sky2 driver has to have 8 byte alignment of receive buffer
on some chip versions. On architectures which don't support efficient
unaligned access this doesn't work very well. The solution is to
just copy all received packets which is what the driver already
does for small packets.
This allows the driver to be used on the Tilera TILEmpower-Gx, since
the tile architecture doesn't currently handle kernel unaligned accesses,
just userspace.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
NAPI is disabled during suspend and needs to be enabled on resume. Without
this the driver locks up during resume in rtl_reset_work() trying to disable
NAPI again.
Signed-off-by: Artem Savkov <artem.savkov@gmail.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 621b4d6 updated the bnx2x driver to a new FW version, but lacked
a commit to a header file with changes to the firmware's interface.
The missing interface change causes iscsi and fcoe to misbehave with the
updated firmware.
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
CC: Michael Chan <mchan@broadcom.com>
CC: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In rare circumstances, a descriptor writeback flush may not work if it
arrives on a specific clock cycle as a writeback request is going out.
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
When the adapter is closed while it is simultaneously going through a
reset, it can cause a null-pointer dereference when the two different code
paths simultaneously cleanup up the Tx/Rx resources.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Fix up code so that changes in DCB settings
are detected only when ixgbe_dcbnl_set_all is called.
Previously, a series of 'change' commands followed by
a call to ixgbe_dcbnl_set_all() would always be handled
as a HW change - even if the net change was zero.
This patch checks for this case of no actual change and
skips going through the HW set process.
Without this fix, the link could reset and result in
a link flap.
The core change in this patch is to check for changes
in the ixgbe_copy_dcb_cfg() routine - and return
a bitmask of detected changes. The other
places where changes were detected previously can be removed.
Signed-off-by: Eric Multanen <eric.w.multanen@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Pull networking fixes from David Miller:
1) Provide device string properly for USB i2400m wimax devices, also
don't OOPS when providing firmware string. From Phil Sutter.
2) Add support for sh_eth SH7734 chips, from Nobuhiro Iwamatsu.
3) Add another device ID to USB zaurus driver, from Guan Xin.
4) Loop index start in pool vector iterator is wrong causing MAC to not
get configured in bnx2x driver, fix from Dmitry Kravkov.
5) EQL driver assumes HZ=100, fix from Eric Dumazet.
6) Now that skb_add_rx_frag() can specify the truesize increment
separately, do so in f_phonet and cdc_phonet, also from Eric
Dumazet.
7) virtio_net accidently uses net_ratelimit() not only on the kernel
warning but also the statistic bump, fix from Rick Jones.
8) ip_route_input_mc() uses fixed init_net namespace, oops, use
dev_net(dev) instead. Fix from Benjamin LaHaise.
9) dev_forward_skb() needs to clear the incoming interface index of the
SKB so that it looks like a new incoming packet, also from Benjamin
LaHaise.
10) iwlwifi mistakenly initializes a channel entry as 2GHZ instead of
5GHZ, fix from Stanislav Yakovlev.
11) Missing kmalloc() return value checks in orinoco, from Santosh
Nayak.
12) ath9k doesn't check for HT capabilities in the right way, it is
checking ht_supported instead of the ATH9K_HW_CAP_HT flag. Fix from
Sujith Manoharan.
13) Fix x86 BPF JIT emission of 16-bit immediate field of AND
instructions, from Feiran Zhuang.
14) Avoid infinite loop in GARP code when registering sysfs entries.
From David Ward.
15) rose protocol uses memcpy instead of memcmp in a device address
comparison, oops. Fix from Daniel Borkmann.
16) Fix build of lpc_eth due to dev_hw_addr_rancom() interface being
renamed to eth_hw_addr_random(). From Roland Stigge.
17) Make ipv6 RTM_GETROUTE interpret RTA_IIF attribute the same way
that ipv4 does. Fix from Shmulik Ladkani.
18) via-rhine has an inverted bit test, causing suspend/resume
regressions. Fix from Andreas Mohr.
19) RIONET assumes 4K page size, fix from Akinobu Mita.
20) Initialization of imask register in sky2 is buggy, because bits are
"or'd" into an uninitialized local variable. Fix from Lino
Sanfilippo.
21) Fix FCOE checksum offload handling, from Yi Zou.
22) Fix VLAN processing regression in e1000, from Jiri Pirko.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits)
sky2: dont overwrite settings for PHY Quick link
tg3: Fix 5717 serdes powerdown problem
net: usb: cdc_eem: fix mtu
net: sh_eth: fix endian check for architecture independent
usb/rtl8150 : Remove duplicated definitions
rionet: fix page allocation order of rionet_active
via-rhine: fix wait-bit inversion.
ipv6: Fix RTM_GETROUTE's interpretation of RTA_IIF to be consistent with ipv4
net: lpc_eth: Fix rename of dev_hw_addr_random
net/netfilter/nfnetlink_acct.c: use linux/atomic.h
rose_dev: fix memcpy-bug in rose_set_mac_address
Fix non TBI PHY access; a bad merge undid bug fix in a previous commit.
net/garp: avoid infinite loop if attribute already exists
x86 bpf_jit: fix a bug in emitting the 16-bit immediate operand of AND
bonding: emit event when bonding changes MAC
mac80211: fix oper channel timestamp updation
ath9k: Use HW HT capabilites properly
MAINTAINERS: adding maintainer for ipw2x00
net: orinoco: add error handling for failed kmalloc().
net/wireless: ipw2x00: fix a typo in wiphy struct initilization
...
This patch corrects a bug in function sky2_open() of the Marvell Yukon 2 driver
in which the settings for PHY quick link are overwritten.
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Acked-by: Stephen Hemminger <shemminger@vyattta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If port 0 of a 5717 serdes device powers down, it hides the phy from
port 1. This patch works around the problem by keeping port 0's phy
powered up.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit dae2e9f430 changed dev_alloc_skb()
to netdev_alloc_skb(), adding a dev pointer, but erroneously used "->"
instead of "." for a struct member when accessing the dev pointer.
This change fixes the build breakage.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
This commit fixes a number of issues seen with the driver:
- Improve handling of return credits to the hardware shim
- Use skb_frag_size() appropriately
- Fix driver so it works properly with netpoll for console over UDP
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
SuperH has the "CONFIG_CPU_LITTLE_ENDIAN" and the "__LITTLE_ENDIAN__".
But, other architecture doesn't have them. So, this patch fixes it.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bug appeared in a384a33bb1
("via-rhine: RHINE_WAIT_FOR macro removal). It can be noticed
during suspend/resume.
Signed-off-by: Andreas Mohr <andi@lisas.de>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: David Lv <DavidLv@viatech.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
In parallel to the integration of lpc_eth.c, dev_hw_addr_random() has been
renamed to eth_hw_addr_random(). This patch fixes it also in the new driver
lpc_eth.c.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The merge done in commit b26e478f undid bug fix in commit c3e072f8
("net: fsl_pq_mdio: fix non tbi phy access"), with the result that non
TBI (e.g. MDIO) PHYs cannot be accessed.
Signed-off-by: Kenth Eriksson <kenth.eriksson@transmode.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Artem's cleanup of the MTD API continues apace.
Fixes and improvements for ST FSMC and SuperH FLCTL NAND, amongst others.
More work on DiskOnChip G3, new driver for DiskOnChip G4.
Clean up debug/warning printks in JFFS2 to use pr_<level>.
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Merge tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6
Pull MTD changes from David Woodhouse:
- Artem's cleanup of the MTD API continues apace.
- Fixes and improvements for ST FSMC and SuperH FLCTL NAND, amongst
others.
- More work on DiskOnChip G3, new driver for DiskOnChip G4.
- Clean up debug/warning printks in JFFS2 to use pr_<level>.
Fix up various trivial conflicts, largely due to changes in calling
conventions for things like dmaengine_prep_slave_sg() (new inline
wrapper to hide new parameter, clashing with rewrite of previously last
parameter that used to be an 'append' flag, and is now a bitmap of
'unsigned long flags').
(Also some header file fallout - like so many merges this merge window -
and silly conflicts with sparse fixes)
* tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6: (120 commits)
mtd: docg3 add protection against concurrency
mtd: docg3 refactor cascade floors structure
mtd: docg3 increase write/erase timeout
mtd: docg3 fix inbound calculations
mtd: nand: gpmi: fix function annotations
mtd: phram: fix section mismatch for phram_setup
mtd: unify initialization of erase_info->fail_addr
mtd: support ONFI multi lun NAND
mtd: sm_ftl: fix typo in major number.
mtd: add device-tree support to spear_smi
mtd: spear_smi: Remove default partition information from driver
mtd: Add device-tree support to fsmc_nand
mtd: fix section mismatch for doc_probe_device
mtd: nand/fsmc: Remove sparse warnings and errors
mtd: nand/fsmc: Add DMA support
mtd: nand/fsmc: Access the NAND device word by word whenever possible
mtd: nand/fsmc: Use dev_err to report error scenario
mtd: nand/fsmc: Use devm routines
mtd: nand/fsmc: Modify fsmc driver to accept nand timing parameters via platform
mtd: fsmc_nand: add pm callbacks to support hibernation
...
