Inspired by implementation in smsc911x.c and smsc9420.c
Tested on ARM/pandaboard running android
Signed-off-by: Emeric Vigier <emeric.vigier@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
as the manual of module_pci_driver says that
it can be used when the init and exit functions of
the module does nothing but the pci_register_driver
and pci_unregister_driver.
use it for rdc's r6040 driver, as the init and exit
paths does as above, and also this reduces a little
amount of code.
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
l4_rxhash is set on skb when rxhash is obtained from canonical 4-tuple
over transport ports/addresses.
We can set skb->l4_rxhash for all incoming TCP packets on bnx2x for
free, as cqe status contains a hash type information.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ETH_P_IP is host Endian, skb->protocol is big Endian, when
compare them, we should change ETH_P_IP from host endian
to big endian, htons, not ntohs.
CC: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
broadcom, not marvell.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If registering of one of them fails, all already registered drivers
of this module will be unregistered.
Use the new register/unregister functions in all drivers
registering more than one driver.
amd.c, realtek.c: Simplify: directly return registration result.
Tested with broadcom.c
All others compile-tested.
Signed-off-by: Christian Hohnstaedt <chohnstaedt@innominate.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The bcm87xx phys don't support autonegotiation, so don't use it by
default, as otherwise phy_state_machine() will try to enable it (using
c22 requests, which also don't make any sense for the bcm78xx).
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Re-enable interrupts if it is not our interrupt
Signed-off-by: Mirko Lindner <mlindner@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds support for the Optima EEE chipset.
Signed-off-by: Mirko Lindner <mlindner@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
OFF carrier state is setup in probe() open() and suspend() functions.
The carrier ON state is managed in macb_handle_link_change().
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
DRV_MODULE_VERSION here is "2.7.2.2" which is only 8 chars but we copy
12 bytes from the stack so it's a small information leak.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Acked-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
I noticed excess calls to skb_copy_expand() or memmove() in asix driver.
This driver needs to push 4 bytes in front of frame (packet_len)
and maybe add 4 bytes after the end (if padlen is 4)
So it should set needed_headroom & needed_tailroom to avoid
copies. But its not enough, because many packets are cloned
before entering asix_tx_fixup() and this driver use skb_cloned()
as a lazy way to check if it can push and put additional bytes in frame.
Avoid skb_copy_expand() expensive call, using following rules :
- We are allowed to push 4 bytes in headroom if skb_header_cloned()
is false (and if we have 4 bytes of headroom)
- We are allowed to put 4 bytes at tail if skb_cloned()
is false (and if we have 4 bytes of tailroom)
TCP packets for example are cloned, but skb_header_release()
was called in tcp stack, allowing us to use headroom for our needs.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Allan Chou <allan@asix.com.tw>
Cc: Trond Wuellner <trond@chromium.org>
Cc: Grant Grundler <grundler@chromium.org>
Cc: Paul Stewart <pstew@chromium.org>
Cc: Ming Lei <tom.leiming@gmail.com>
Tested-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The drop action is implemented by allocating a QP and keeping it in a reset state
such that the HW drops any packets which are steered to that QP. When a drop action
is requested, we attach the relevant flow to that QP.
Sign-off-by: Hadar Hen Zion <hadarh@mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement the ethtool APIs for attaching L2/L3/L4 based flow steering
rules to the netdevice RX rings. Added set_rxnfc callback and enhanced
the existing get_rxnfc callback.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.co.il>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The device managed flow steering API has three promiscuous modes:
1. Uplink - captures all the packets that arrive to the port.
2. Allmulti - captures all multicast packets arriving to the port.
3. Function port - for future use, this mode is not implemented yet.
Use these modes with the flow_attach and flow_detach firmware commands
according to the promiscuous state of the netdevice.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As with other device resources, the resource tracker is needed for supporting
device managed flow steering rules under SRIOV: make sure virtual functions
delete only rules created by them, and clean all rules attached by a crashed VF.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The driver is modified to support three operation modes.
If supported by firmware use the device managed flow steering
API, that which we call device managed steering mode. Else, if
the firmware supports the B0 steering mode use it, and finally,
if none of the above, use the A0 steering mode.
When the steering mode is device managed, the code is modified
such that L2 based rules set by the mlx4_en driver for Ethernet
unicast and multicast, and the IB stack multicast attach calls
done through the mlx4_ib driver are all routed to use the device
managed API.
When attaching rule using device managed flow steering API,
the firmware returns a 64 bit registration id, which is to be
provided during detach.
Currently the firmware is always programmed during HCA initialization
to use standard L2 hashing. Future work should be done to allow
configuring the flow-steering hash function with common, non
proprietary means.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for firmware commands to attach/detach a new device managed
steering mode. Such network steering rules allow the user to provide an
L2/L3/L4 flow specification to the firmware and have the device to steer
traffic that matches that specification to the provided QP.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of checking the firmware supported steering mode in various
places in the code, add a dedicated field in the mlx4 device capabilities
structure which is written once during the initialization flow and read
across the code.
This also set the grounds for add new steering modes. Currently two modes
are supported, and are named after the ConnectX HW versions A0 and B0.
A0 steering uses mac_index, vlan_index and priority to steer traffic
into pre-defined range of QPs.
B0 steering uses Ethernet L2 hashing rules and is enabled only
if the firmware supports both unicast and multicast B0 steering,
The current steering modes are relevant for Ethernet traffic only,
such that Infiniband steering remains untouched.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, for every change in the net device multicast list, the driver
detaches all the addresses from the HW device, and then attaches the
updated list. This behavior is wrong from two aspects: first, it causes
a load of firmware commands and second, there is period of time where
the correct addresses are not attached, which turned into packet loss.
To improve - a copy of the multicast list is saved by the driver. For
every change in the multicast list, the multicast list copy is used
to find the delta between those two lists and add or remove multicast
addresses as needed.
Reported-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Cc: Shawn Bohrer <sbohrer@rgmadvisors.com>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.co.il>
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently the IDs used by the resource tracker are of type u32, so far this was
ok since all the different resources we were tracking could be encoded in 32bit.
As a preparation step for tracking of resources whose IDs need > 32 bits such
as network flow steering rules, who are 64 bit in size, move to use 64 bit
based resource IDs.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change the data structure used for managing the SRIOV resource tracking
mechanism from radix tree to red-black tree. This is preparation step
for supporting resource IDs which are 64bit long, such as network flow
steering rules. Such IDs can't be used as radix-tree keys on 32bit
architectures and hence the reason for the change.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
pci_set_drvdata is called twice at the remove path of driver,
call it once.
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove excessive variable used for the return status.
Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Cc: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Cc: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Cc: Jon Mason <mason@myri.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Cc: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Cc: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Cc: Jon Mason <jdmason@kudzu.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
which could lead to bad array indexing when switching clock parents.
The issue is fixed with a trivial change to the code flow in
__clk_set_parent.
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Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux
Pull fix to common clk framework from Michael Turquette:
"The previous set of common clk fixes for -rc5 left an uninitialized
int which could lead to bad array indexing when switching clock
parents. The issue is fixed with a trivial change to the code flow in
__clk_set_parent."
* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux:
clk: fix parent validation in __clk_set_parent()
I really shouldn't do important things late in the day. It seems
that I get careless.
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Merge tag 'md-3.5-fixes' of git://neil.brown.name/md
Pull raid10 build failure fix from NeilBrown:
"I really shouldn't do important things late in the day. It seems that
I get careless."
* tag 'md-3.5-fixes' of git://neil.brown.name/md:
md/raid10: fix careless build error
Pull networking update from David Miller:
1) Fix RX sequence number handling in mwifiex, from Stone Piao.
2) Netfilter ipset mis-compares device names, fix from Florian
Westphal.
3) Fix route leak in ipv6 IPVS, from Eric Dumazet.
4) NFS fixes. Several buffer overflows in NCI layer from Dan
Rosenberg, and release sock OOPS'er fix from Eric Dumazet.
5) Fix WEP handling ath9k, we started using a bit the chip provides to
indicate undecrypted packets but that bit turns out to be unreliable
in certain configurations. Fix from Felix Fietkau.
6) Fix Kconfig dependency bug in wlcore, from Randy Dunlap.
7) New USB IDs for rtlwifi driver from Larry Finger.
8) Fix crashes in qmi_wwan usbnet driver when disconnecting, from Bjørn
Mork.
9) Gianfar driver programs coalescing settings properly in single queue
mode, but does not do so in multi-queue mode. Fix from Claudiu
Manoil.
10) Missing module.h include in davinci_cpdma.c, from Daniel Mack.
11) Need dummy handler for IPSET_CMD_NONE otherwise we crash in ipset if
we get this via nfnetlink, fix from Tomasz Bursztyka.
12) Missing RCU unlock in nfnetlink error path, also from Tomasz.
13) Fix divide by zero in igbvf when the user tries to set an RX
coalescing value of 0 usecs, from Mitch A Williams.
14) We can process SCTP sacks for the wrong transport, oops. Fix from
Neil Horman.
15) Remove hw IP payload checksumming from e1000e driver. This has zery
value in our stack, and turning it on creates a very unintuitive
restriction for users when using jumbo MTUs.
Specifically, when IP payload checksums are on you cannot use both
receive hashing offload and jumbo MTU. Fix from Bruce Allan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits)
e1000e: remove use of IP payload checksum
sctp: be more restrictive in transport selection on bundled sacks
igbvf: fix divide by zero
netfilter: nfnetlink: fix missing rcu_read_unlock in nfnetlink_rcv_msg
netfilter: ipset: fix crash if IPSET_CMD_NONE command is sent
davinci_cpdma: include linux/module.h
gianfar: Fix RXICr/TXICr programming for multi-queue mode
net: Downgrade CAP_SYS_MODULE deprecated message from error to warning.
net: qmi_wwan: fix Oops while disconnecting
mwifiex: fix memory leak associated with IE manamgement
ath9k: fix panic caused by returning a descriptor we have queued for reuse
mac80211: correct behaviour on unrecognised action frames
ath9k: enable serialize_regmode for non-PCIE AR9287
rtlwifi: rtl8192cu: New USB IDs
NFC: Return from rawsock_release when sk is NULL
iwlwifi: fix activating inactive stations
wlcore: drop INET dependency
ath9k: fix dynamic WEP related regression
NFC: Prevent multiple buffer overflows in NCI
netfilter: update location of my trees
...
build error introduced by commit b357f04a67
That function doesn't get extra args until a later patch. Bother.
Reported-by: Fengguang Wu <wfg@linux.intel.com>
Reported-by: Simon Kirby <sim@hostway.ca>
Reported-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Signed-off-by: NeilBrown <neilb@suse.de>
In commit 070ad7e793 ("floppy: convert to delayed work and
single-thread wq") the 'fd_timeout' timer was converted to a delayed
work. However, the "del_timer(&fd_timeout)" was lost in the process,
and any previous pending timeouts would stay active when we then
re-queued the timeout.
This resulted in the floppy probe sequence having a (stale) 20s timeout
rather than the intended 3s timeout, and thus made booting with the
floppy driver (but no actual floppy controller) take much longer than it
should.
Of course, there's little reason for most people to compile the floppy
driver into the kernel at all, which is why most people never noticed.
Canceling the delayed work where we used to do the del_timer() fixes the
issue, and makes the floppy probing use the proper new timeout instead.
The three second timeout is still very wasteful, but better than the 20s
one.
Reported-and-tested-by: Andi Kleen <ak@linux.intel.com>
Reported-and-tested-by: Calvin Walton <calvin.walton@kepstin.ca>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull block bits from Jens Axboe:
"As vacation is coming up, thought I'd better get rid of my pending
changes in my for-linus branch for this iteration. It contains:
- Two patches for mtip32xx. Killing a non-compliant sysfs interface
and moving it to debugfs, where it belongs.
- A few patches from Asias. Two legit bug fixes, and one killing an
interface that is no longer in use.
- A patch from Jan, making the annoying partition ioctl warning a bit
less annoying, by restricting it to !CAP_SYS_RAWIO only.
- Three bug fixes for drbd from Lars Ellenberg.
- A fix for an old regression for umem, it hasn't really worked since
the plugging scheme was changed in 3.0.
- A few fixes from Tejun.
- A splice fix from Eric Dumazet, fixing an issue with pipe
resizing."
* 'for-linus' of git://git.kernel.dk/linux-block:
scsi: Silence unnecessary warnings about ioctl to partition
block: Drop dead function blk_abort_queue()
block: Mitigate lock unbalance caused by lock switching
block: Avoid missed wakeup in request waitqueue
umem: fix up unplugging
splice: fix racy pipe->buffers uses
drbd: fix null pointer dereference with on-congestion policy when diskless
drbd: fix list corruption by failing but already aborted reads
drbd: fix access of unallocated pages and kernel panic
xen/blkfront: Add WARN to deal with misbehaving backends.
blkcg: drop local variable @q from blkg_destroy()
mtip32xx: Create debugfs entries for troubleshooting
mtip32xx: Remove 'registers' and 'flags' from sysfs
blkcg: fix blkg_alloc() failure path
block: blkcg_policy_cfq shouldn't be used if !CONFIG_CFQ_GROUP_IOSCHED
block: fix return value on cfq_init() failure
mtip32xx: Remove version.h header file inclusion
xen/blkback: Copy id field when doing BLKIF_DISCARD.
The below commit introduced a bug in __clk_set_parent()
which could cause it to *skip* the parent validation
which makes sure the parent passed to the api is a valid
one.
commit 7975059db5
Author: Rajendra Nayak <rnayak@ti.com>
Date: Wed Jun 6 14:41:31 2012 +0530
clk: Allow late cache allocation for clk->parents
This was identified by the following compiler warning..
drivers/clk/clk.c: In function '__clk_set_parent':
drivers/clk/clk.c:1083:5: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
.. as reported by Marc Kleine-Budde.
There were various options discussed on how to fix this, one
being initing 'i' to clk->num_parents, but the below approach
was found to be more appropriate as it also makes the 'parent
validation' code simpler to read.
Reported-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Cc: stable@kernel.org
Emeric Vigier