Commit Graph

56295 Commits

Author SHA1 Message Date
Jesse Brandeburg
6995b36c0f i40e/i40evf: clean up some code
Add missings spaces after declarations, remove another __func__ use,
remove uncessary braces, remove unneeded breaks, and useless returns,
and generally fix up some code.

Change-ID: Ie715d6b64976c50e1c21531685fe0a2bd38c4244
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-08 16:19:55 -07:00
Mitch Williams
ee5c1e92dd i40evf: detect reset more reliably
Using VFGEN_RSTAT to detect a VF reset is an endeavor that is fraught
with peril. It's entirely too easy to miss a reset because none of the
bits are sticky. By the time the VF driver reads the register, the reset
may have been processed and cleaned up by the PF driver, leaving the
register in the same state that it was before the reset.

Instead, detect a reset with the VF_ARQLEN register. When the VF is
reset, the enable bit in this register is cleared, and it stays cleared
until the VF driver processes the reset and re-enables the admin queue.

Because we now deal with multiple registers in the reset and watchdog
tasks, rename the rstat_val variable to reg_val.

Change-ID: Id1df17045c0992e607da0162d31807f7fc20d199
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-08 16:08:50 -07:00
Greg Bowers
95e5613f75 i40e: Support FW CEE DCB UP to TC map nibble swap
Changes parsing of AQ command Get CEE DCBX OPER CFG (0x0A07). Change is
required because FW creates the oper_prio_tc nibbles reversed from those
in the CEE Priority Group sub-TLV.

Change-ID: I7d9d8641bb430d30e286fc3fac909866ef8a0de8
Signed-off-by: Greg Bowers <gregory.j.bowers@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-08 16:05:45 -07:00
Serey Kong
66486cd717 i40e/i40evf: Explicitly assign enum index for VSI type
Ran into an issue where PF's VSI type list was different from VF's,
which was resulted in different enum index. The VSI type list can
be different depending on what build flag is used for PF and VF.

The change is to explicitly assign enum index for each VSI type
so that PF and VF always reference to the same VSI type event if the
enum lists are different.

Change-ID: I8c0e5fdb515f324f7964df863a458073cf467e57
Signed-off-by: Serey Kong <serey.kong@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-08 16:02:44 -07:00
Shannon Nelson
9ac7726637 i40e: add switch for link polling
There's been some need for controlling the periodic link polling for
debugging link issues.  This patch enables switching it off and on
through an ethtool private flag.  The link poll remains on by default,
but can be turned off with
	ethtool --set-priv-flags p261p1 LinkPolling off
and later turned back on with
	ethtool --set-priv-flags p261p1 LinkPolling on

To check the current status, use
	ethtool --show-priv-flags p261p1

Change-ID: I32e4ab654ff3eec90a06cf144899971b82d71c40
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-08 15:58:23 -07:00
Matt Jared
c156f856ad i40e: Fix multiple link up messages
This patch addresses an issue where multiple link up messages can be logged
resulting from aq link status timing when link properties are changed (fc,
speed, etc.); solved by using a single function to handle status printing
and adding a mechanism to track whether link state (up or down) has
actually changed.

Change-ID: Ied6ed6e49dc397c77d992adc0bc9ed3767152b9d
Signed-off-by: Matt Jared <matthew.a.jared@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-08 15:28:18 -07:00
Carolyn Wyborny
3487b6c30c i40e: Fix for extra Flow Director filter in table after error
This patch fixes a problem where the PF's fdir filter table would have an
entry that the hw was unable to add. This notification happens in the hot
path, so instead of trying to fix it then, we note the location in the
failure case and delete it during regular fdir subtask callback. Without
this patch, a case can occur where an invalid entry gets replayed and a
valid one is not.

Change-ID: I67831c183b5d0309876de807cc434809b74c9cb7
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-08 15:24:28 -07:00
Neerav Parikh
1a9375eb7f i40e/i40evf: Store CEE DCBX DesiredCfg and RemoteCfg
This patch adds capability to query and store the CEE DCBX DesiredCfg
and RemoteCfg data from the LLDP MIB.
Added new member "desired_dcbx_config" in the i40e_hw data structure
to hold CEE only DesiredCfg data.

Change-ID: I19c550369594384eaff4cc63e690ca740231195d
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-08 15:20:35 -07:00
Neerav Parikh
909b2d16c4 i40e: Add parsing for CEE DCBX TLVs
This patch adds parsing for CEE DCBX TLVs from the LLDP MIB.

While the driver gets the DCB CEE operational configuration from Firmware
using the "Get CEE DCBX Oper Config" AQ command there is a need to get
the CEE DesiredCfg Tx by firmware and DCB configuration Rx from peer; for
debug and other application purposes.

Change-ID: I9140edf1a25a2852c7eff805d81e5eff6266178d
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-08 15:11:38 -07:00
Mitch Williams
96c8d0738a i40e: add more verbose error messages
Under certain circumstances, the device may not have enough resources to
enable all of the VFs that it advertises in config space. Although the
number of supported VFs is reported upon driver init, it is not obvious
when this is different from the number reported in config space. To
eliminate this confusion, add an error message explaining the problem.
Additionally, move the 'Allocating VFs' message down below the error
checks so as to prevent further confusion.

Change-ID: I45b7efca53a7aebf7777be33a8bc9d615ae48ea1
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-08 15:08:04 -07:00
Jesse Brandeburg
02d109be3d i40e: inline interrupt enable
The interrupt enable function can be inlined by moving it to the header
file, which decreases the function call overhead for a frequently called
function.

Change-ID: I3214cc99593725768642680e7b8ce7e9bba7e44d
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-08 15:04:04 -07:00
Jesse Brandeburg
1e8efb42cf i40e: fix erroneous WARN_ON
The driver was issuing a WARN_ON during ring size changes
because the code was cloning the rx_ring struct but
not zeroing out the pointers before allocating new memory.

Zero out the pointers in the cloned copy before allocating
new memory for them.  In this case the code was correctly
avoiding memory leaks but still triggering the warning.

Change-ID: I186dd493948e9b7254ab0593d4aad8b68808918d
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-08 14:59:07 -07:00
Carol L Soto
85121d6ee6 net/mlx4: Remove shared_ports variable at mlx4_enable_msi_x
If we get MAX_MSIX interrupts would like to have each receive ring
with his own msix interrupt line. Do not need the shared_ports
variable at mlx4_enable_msix

Fixes: 9293267a3e ('net/mlx4_core: Capping number of requested MSIXs to MAX_MSIX')
Signed-off-by: Carol L Soto <clsoto@linux.vnet.ibm.com>
Acked-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 05:20:24 -07:00
Jean Delvare
9d3a6386c8 net: mdio-octeon: Drop obsolete Kconfig advice
"Y" was the right answer for MDIO_OCTEON when this option was only
available on CAVIUM_OCTEON_SOC. But now that the option is visible on
all (64-bit) systems, this piece of advice no longer makes sense. This
helper module is selected automatically by drivers which need it
anyway.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: a6d6786452 ("net: mdio-octeon: Modify driver to work on both ThunderX and Octeon")
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Sunil Goutham <sgoutham@cavium.com>
Cc: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>
Cc: David Daney <david.daney@cavium.com>
Cc: David S. Miller <davem@davemloft.net>
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 05:12:16 -07:00
Arnd Bergmann
bcb9db49bb mlxsw: fix warnings for big-endian 32-bit dma_addr_t
The recently added mlxsw driver produces warnings in ARM
allmodconfig:

drivers/net/ethernet/mellanox/mlxsw/pci.c: In function 'mlxsw_pci_cmd_exec':
drivers/net/ethernet/mellanox/mlxsw/pci.c:1585:59: warning: right shift count >= width of type [-Wshift-count-overflow]
linux/byteorder/big_endian.h:38:51: note: in definition of macro '__cpu_to_be32'
drivers/net/ethernet/mellanox/mlxsw/pci.c:76:2: note: in expansion of macro 'iowrite32be'

This uses upper_32_bits() to extract the bits while avoiding that warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Fixes: eda6500a98 "mlxsw: Add PCI bus implementation"
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 05:04:30 -07:00
Arnd Bergmann
dfdd7230c5 net: hns: fix 32-bit build warning
The recently added hns driver causes a build warning in ARM
allmodconfig builds:

drivers/net/ethernet/hisilicon/hns/hnae.c: In function 'handles_show':
drivers/net/ethernet/hisilicon/hns/hnae.c:452:13: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
          j, (u64)h->qs[i]->io_base);
             ^

This removes the pointless cast and prints the pointer address using
the "%p" format string in all three locations.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:54:15 -07:00
Jon Ringle
d70e53262f net: Microchip encx24j600 driver
This ethernet driver supports the Micorchip enc424j600/626j600 Ethernet
controller over a SPI bus interface. This driver makes use of the regmap API to
optimize access to registers by caching registers where possible.

Datasheet:
http://ww1.microchip.com/downloads/en/DeviceDoc/39935b.pdf

Signed-off-by: Jon Ringle <jringle@gridpoint.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:49:55 -07:00
Arun Parameswaran
9200c27a1c net: phy: bcm7xxx: Modified to use global core register defines
Modified the bcm7xxx phy driver to remove local core register
defines and use the common ones from "include/linux/brcmphy.h"

Signed-off-by: Arun Parameswaran <arunp@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:45:53 -07:00
Arun Parameswaran
8e185d6997 net: phy: Broadcom Cygnus internal Etherent PHY driver
Add support for the Broadcom Cygnus SoCs internal PHY's.
The PHYs are 1000M/100M/10M capable with support for 'EEE'
and 'APD' (Auto Power Down).

This driver supports the following Broadcom Cygnus SoCs:
 - BCM583XX (BCM58300, BCM58302, BCM58303, BCM58305)
 - BCM113XX (BCM11300, BCM11320, BCM11350, BCM11360)

The PHY's on these SoC's require some workarounds for
stable operation, both during configuration time and
during suspend/resume. This driver handles the
application of the workarounds.

Signed-off-by: Arun Parameswaran <arunp@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:45:52 -07:00
Arun Parameswaran
a1cba5613e net: phy: Add Broadcom phy library for common interfaces
This patch adds the Broadcom phy library to consolidate common
interfaces shared by Broadcom phy's.

Moved the common interfaces to the 'bcm-phy-lib.c' and updated
the Broadcom PHY drivers to use the new APIs.

Signed-off-by: Arun Parameswaran <arunp@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:45:46 -07:00
Arun Parameswaran
ddc24ae1fd net: phy: Broadcom iProc MDIO bus driver
This patch adds support for the Broadcom iProc MDIO bus interface.
The MDIO interface can be found in the Broadcom iProc family Soc's.

The MDIO bus is accessed using a combination of command and data
registers. This MDIO driver provides access to the Etherent GPHY's
connected to the MDIO bus.

Signed-off-by: Arun Parameswaran <arunp@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:44:46 -07:00
Eric W. Biederman
ede2059dba dst: Pass net into dst->output
The network namespace is already passed into dst_output pass it into
dst->output lwt->output and friends.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:27:03 -07:00
Eric W. Biederman
33224b16ff ipv4, ipv6: Pass net into ip_local_out and ip6_local_out
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:27:02 -07:00
Eric W. Biederman
cf91a99daa ipv4, ipv6: Pass net into __ip_local_out and __ip6_local_out
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:27:02 -07:00
Eric W. Biederman
57c4bf859c ipvlan: Cache net in ipvlan_process_v4_outbound and ipvlan_process_v6_outbound
Compute net once in ipvlan_process_v4_outbound and
ipvlan_process_v6_outbound and store it in a variable so that net does
not need to be recomputed next time it is used.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:27:01 -07:00
Eric W. Biederman
a7093fefa5 ppp: Cache net in pptp_xmit
Compute net and store it in a variable in pptp_xmit, so that the value
can be reused the next time it is needed.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:27:00 -07:00
Eric W. Biederman
792883303c ipv6: Merge ip6_local_out and ip6_local_out_sk
Stop hidding the sk parameter with an inline helper function and make
all of the callers pass it, so that it is clear what the function is
doing.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:26:58 -07:00
Eric W. Biederman
e2cb77db08 ipv4: Merge ip_local_out and ip_local_out_sk
It is confusing and silly hiding a parameter so modify all of
the callers to pass in the appropriate socket or skb->sk if
no socket is known.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:26:57 -07:00
Eric W. Biederman
4ebdfba73c dst: Pass a sk into .local_out
For consistency with the other similar methods in the kernel pass a
struct sock into the dst_ops .local_out method.

Simplifying the socket passing case is needed a prequel to passing a
struct net reference into .local_out.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 04:26:55 -07:00
Mitch Williams
7fd0ac66c2 i40e/i40evf: remove unused opcode
This opcode is not required. VFs that program RSS through the firmware
do it by interacting directly with the firmware, and do not need to use
the virtual channel for this functionality.

Change-ID: Iaf17d2600e28ff1b6be8653f2fe9df1facd23b0e
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 14:57:26 -07:00
Mitch Williams
313ed2d520 i40evf: propagate interrupt allocation failure
Lower level functions are properly reporting errors, and higher-level
functions are correctly responding to errors, but the errors aren't
actually getting through. Typically, the middle-manager function seems
to want to shield its boss from any bad news.

This change fixes a panic if the driver is unable to enable MSI-X or is
unable to acquire enough vectors.

Change-ID: Ifd5787ce92519a5d97e4b465902db930d97b71a1
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 14:43:45 -07:00
Neerav Parikh
2642f02528 i40e: Additional checks for CEE APP priority validity
The firmware has added additional status information to allow software
to determine if the APP priority for FCoE/iSCSI/FIP is valid or not in
CEE DCBX mode.

This patch adds to support those additional checks and will only add
applications to the software table that have oper and sync bits set
without any error.

Change-ID: I0a76c52427dadf97d4dba4538a3068d05e4eb56b
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 14:39:30 -07:00
Anjali Singhai Jain
2fc3d7152a i40e/i40evf: Add a stat to keep track of linearization count
Keep track of how many times we ask the stack to linearize the
skb because the HW cannot handle skbs with more than 8 frags per
segment/single packet.

Change-ID: If455452060963a769bbe6112cba952e79e944b52
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 14:35:45 -07:00
Shannon Nelson
2f41f33586 i40e/i40evf: fix unicast mac address add
When using something like "ip maddr add ..." to add another unicast mac
address to the netdev, the mac address comes into the set_rx_mode handler
in the multicast list whether it is a unicast or multicast address.
This was confusing the code when it was trying to search for addresses
that needed to be deleted from the VSI, because it was looking for the
VSI unicast address in the netdev unicast list.  The result was that a
new unicast address would get added to the VSI list and then immediately
removed, and would never actually make it down into the hardware.

This patch removes the separation from unicast and multicast in the search
for filters to be deleted.  It also simplifies the logic a little with a
jump to the bottom of the loop when an address is found.  Now it doesn't
matter which netdev list the address is hiding in, we'll check them all.

Change-ID: Ie3685a92427ae7d2212bf948919ce295bc7a874c
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 14:26:04 -07:00
Jesse Brandeburg
a72a5abcb3 i40e: fix bug in return from get_link_status and avoid spurious link messages
Previously, the driver could call this function and have only true/false
returned, but false could mean multiple things like failure to read
or link was down. This change allows the caller to get all return values
in the call chain bubbled back to the source, which keeps information about
failures from being lost.

Also, in some unlikely scenarios, the firmware can become slow to respond
to admin queue (AQ) queries for link state.  Should the AQ time out,
the driver can detect the state and avoid a link change when there
may have been none.

Change-ID: Ib2ac38407b7880750fb891b392fa77457fe6c21c
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 14:23:09 -07:00
Jesse Brandeburg
dd38c583ae i40e: add little endian conversion for checksum
The checksum is not correct on big endian machines so add code to swap it
correctly.

Change-ID: Ic92b886d172a2cbe49f5d7eee1bc78e447023c7b
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 14:18:53 -07:00
Shannon Nelson
fb43201f15 i40e/i40evf: give up the __func__
During early development, we added the function name to all of the error
strings to make debugging simpler. Now that we've released the driver,
our users should have more comprehensible error messages. So tear the
roof off and give up the __func__. Ow.

Change-ID: I7e1766252c7a032b9af6520da6aff536bdfd533c
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 14:11:24 -07:00
Catherine Sullivan
0002e1189b i40e: Never let speed get set to 0 in get_settings
In ethtool, there is a possibility of speed getting set to 0
if advertise is set to 0 (which it is when autoneg is disabled).
We never want this to happen as the firmware will actually attempt
to set the speed to 0 sending link down, so add an extra check
to make sure this doesn't happen.

Change-ID: I62e0eeee2cbf043d8e6f5c9c9f0b92794e877f01
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 14:08:30 -07:00
Carolyn Wyborny
fba52e21e5 i40e: Fix for truncated interrupt name
This patch extends the size of the text available for the interrupt names.
Without this patch, all the descriptive data available for the Flow
Director interrupts is truncated.

Change-ID: I2ac458f23ac3b4ea8f1edf73edc283b1d3704c7f
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 14:00:00 -07:00
Shannon Nelson
9e1c26e350 i40e/i40evf: assure clean asq status report
There was a possibility where the asq_last_status could get through without
update and thus report a previous error.  I don't think we've actually seen
this happen, but this patch will help make sure it doesn't.

Change-ID: I9e33927052a5ee6ea21f80b66d4c4b76c2760b17
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Christopher Pau <christopher.pau@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 13:59:02 -07:00
Shannon Nelson
21364bcfc7 i40e: make i40e_init_pf_fcoe to void
i40e_init_pf_fcoe() didn't return anything except 0, it prints enough
error info already, and no driver logic depends on the return value,
so this can be void.

Change-ID: Ie6afad849857d87a7064c42c3cce14c74c2f29d8
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 13:55:22 -07:00
Shannon Nelson
725821f340 i40e: fix bad CEE status shift value
Fix a shift value that was wrong, ending up with a bad bitmask.  Also add
a blank line between two sets of #defines for better readability.

Change-ID: I3e41fa2a2ab904d3a4e6cbf13972ab0036a10601
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 13:48:07 -07:00
Shannon Nelson
df08fd4dbc i40e/i40evf: fix a potential type compare issue
Rework an if expression to assure there is no type compare problem between
a size and a possible negative number.

Change-ID: I4921fcc96abfcf69490efce020a9e4007f251c99
Reported-by: Helin Zhang <helin.zhang@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 13:38:11 -07:00
Shannon Nelson
bc5166b908 i40e/i40evf: add driver support for new device ids
Early addition of new a device id.

Change-ID: I61a8c8556fdf4f5714be4e4089689e374f30293c
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 13:34:09 -07:00
Mitch Williams
0325fca757 i40e: stop VF rings
Explicitly stop the rings belonging to each VF when disabling SR-IOV.
Even though the VFs were gone, and the associated VSIs were removed, the
rings were not stopped, and in some circumstances the hardware would
continue to access the memory formerly used by the rings, causing memory
corruption or DMAR errors, both of which would lead to general malaise
of the kernel.

To relieve this condition, explicitly stop all the rings associated with
each VF before releasing its resources.

Change-ID: I78c05d562c66e7b594b7e48d67860f49b3e5b6ec
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 13:31:20 -07:00
Shannon Nelson
1d5109d187 i40e: enable WoL operation if config bit show WoL capable
The driver was disabling Wake-on-LAN by default and waiting for the user
to expressly turn it on.  This patch has the driver turning on WoL from
the start if enabled in the hardware config, which matches the behavior
of our other drivers.

Change-ID: I43faedb907f8ba4d1a61b72a7c86072b97af12b1
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 13:29:14 -07:00
Paul M Stillwell Jr
22e05bd6f7 i40e: Increase the amount of time we wait for reset to be done
In some rare cases the reset can take longer to complete so increase the
amount of time we wait.

Change-ID: Ib5628ec54b526a811ee33d1214fe763226406671
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-07 13:10:10 -07:00
David S. Miller
2579c98f0d For the current cycle, we have the following right now:
* many internal fixes, API improvements, cleanups, etc.
  * full AP client state tracking in cfg80211/mac80211 from Ayala
  * VHT support (in mac80211) for mesh
  * some A-MSDU in A-MPDU support from Emmanuel
  * show current TX power to userspace (from Rafał)
  * support for netlink dump in vendor commands (myself)
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Merge tag 'mac80211-next-for-davem-2015-10-05' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
For the current cycle, we have the following right now:
 * many internal fixes, API improvements, cleanups, etc.
 * full AP client state tracking in cfg80211/mac80211 from Ayala
 * VHT support (in mac80211) for mesh
 * some A-MSDU in A-MPDU support from Emmanuel
 * show current TX power to userspace (from Rafał)
 * support for netlink dump in vendor commands (myself)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-07 04:29:18 -07:00
David Ahern
8cbb512c92 net: Add source address lookup op for VRF
Add operation to l3mdev to lookup source address for a given flow.
Add support for the operation to VRF driver and convert existing
IPv4 hooks to use the new lookup.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-07 04:27:44 -07:00
David Ahern
fee6d4c777 net: Add netif_is_l3_slave
IPv6 addrconf keys off of IFF_SLAVE so can not use it for L3 slave.
Add a new private flag and add netif_is_l3_slave function for checking
it.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-07 04:27:43 -07:00
David Ahern
6e2895a8e3 net: Rename FLOWI_FLAG_VRFSRC to FLOWI_FLAG_L3MDEV_SRC
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-07 04:27:42 -07:00
Claudiu Manoil
3e905b80b9 gianfar: Add WAKE_UCAST and "wake-on-filer" support
This enables eTSEC's filer (Rx parser) and the FGPI Rx
interrupt (Filer General Purpose Interrupt) as a wakeup
source event.

Upon entering suspend state, the eTSEC filer is given
a rule to match incoming L2 unicast packets.  A packet
matching the rule will be enqueued in the Rx ring and
a FGPI Rx interrupt will be asserted by the filer to
wakeup the system.  Other packet types will be dropped.
On resume the filer table is restored to the content
before entering suspend state.
The set of rules from gfar_filer_config_wol() could be
extended to implement other WoL capabilities as well.

The "fsl,wake-on-filer" DT binding enables this capability
on certain platforms that feature the necessary power
management infrastructure, targeting mainly printing and
imaging applications.
(refer to Power Management section of the SoC Ref Man)

Cc: Li Yang <leoli@freescale.com>
Cc: Zhao Chenhui <chenhui.zhao@freescale.com>

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-07 04:19:45 -07:00
Mitch Williams
90d2c056bd i40e/i40evf: set AQ count after memory allocation
The standard way to check if the AQ is enabled is to look at the
count field. So we should only set this field after we have
successfully allocated memory. To do otherwise is to incite
panic among the populace.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-07 04:13:50 -07:00
David S. Miller
e892406f00 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-10-03

This series contains updates to i40e and i40evf, some of which are to
resolve more Red Hat bugzilla issues.

Jiang Liu updates the i40e and i40evf drivers to use numa_mem_id()
instead of numa_node_id() to get the nearest node with memory which
better supports memoryless nodes.

Anjali fixes an issue from Dan Carpenter <dan.carpenter@oracle.com>,
to resolve a memory leak in X722 RSS configuration path, where we should
free the memory allocated before exiting.

Shannon modifies the drivers to ensure we have the spinlocks before we
clear the ARQ and ASQ management registers.  In addition, we widen the
locked portion insert a sanity check to ensure we are working with safe
register values.

Mitch fixes an issue where under certain circumstances, we can get an
extra VF_RESOURCES message from the PF driver at runtime.  When this
occurs, we need to parse it because our VSI may have changed and that
will affect the relationship with the PF driver.  But this parsing also
blows away our current MAC address, so resolve the issue by restoring
the current MAC address from the netdev struct after we parse the
resource message.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-07 03:01:53 -07:00
Russell King
4bac50bace net: dsa: mv88e6xxx: remove link polling
The link status is polled by the generic phy layer, there's no need to
duplicate that polling with additional polling.  This additional polling
adds additional MDIO traffic, and races with the generic phy layer,
resulting in missing or duplicated link status messages.

Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-07 02:58:47 -07:00
Kalle Valo
7e64e5e66a * more clean-ups towards multiple RX queues;
* some rate scaling fixes and improvements;
 * some time-of-flight fixes;
 * other generic improvements and clean-ups;
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Merge tag 'iwlwifi-next-for-kalle-2015-10-05' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

* more clean-ups towards multiple RX queues;
* some rate scaling fixes and improvements;
* some time-of-flight fixes;
* other generic improvements and clean-ups;
2015-10-07 12:14:23 +03:00
Kalle Valo
de28a05ee2 * some fixes for PN key programming when entering D3;
* fix for CSA when the AP is stopped during a channel switch;
 * fix firmware name for 3160 devices;
 * add some new PCI IDs for 7265 devices;
 * fix CT-kill entry;
 * fix kernel panic when a sysassert occurs in the init ucode flow;
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Merge tag 'iwlwifi-for-kalle-2015-10-05' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes

* some fixes for PN key programming when entering D3;
* fix for CSA when the AP is stopped during a channel switch;
* fix firmware name for 3160 devices;
* add some new PCI IDs for 7265 devices;
* fix CT-kill entry;
* fix kernel panic when a sysassert occurs in the init ucode flow;
2015-10-07 11:12:01 +03:00
David S. Miller
6a27a6c3be Revert "net: Microchip encx24j600 driver"
This reverts commit 04fbfce7a2.
2015-10-06 06:25:36 -07:00
David S. Miller
c664bc6d94 Revert "net: encx24j600_exit() can be static"
This reverts commit 9886ce2b9d.
2015-10-06 06:25:29 -07:00
Tom Lendacky
855591d2f7 amd-xgbe: Check for successful buffer allocation before use
The kasprintf function can return NULL if the allocation fails. Check for
successful allocation before attempting to use the returned buffer.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 23:30:51 -07:00
Kalle Valo
f79683ded6 Merge ath-next from ath.git
Major changes in ath10k:

* add spectral scan support for 10.4 firmware
* add qca6164 support
* implement mesh support using firmware raw mode
2015-10-05 17:22:54 +03:00
Dean Jenkins
6a570814cd asix: Continue processing URB if no RX netdev buffer
Avoid a loss of synchronisation of the Ethernet Data header 32-bit
word due to a failure to get a netdev socket buffer.

The ASIX RX handling algorithm returned 0 upon a failure to get
an allocation of a netdev socket buffer. This causes the URB
processing to stop which potentially causes a loss of synchronisation
with the Ethernet Data header 32-bit word. Therefore, subsequent
processing of URBs may be rejected due to a loss of synchronisation.
This may cause additional good Ethernet frames to be discarded
along with outputting of synchronisation error messages.

Implement a solution which checks whether a netdev socket buffer
has been allocated before trying to copy the Ethernet frame into
the netdev socket buffer. But continue to process the URB so that
synchronisation is maintained. Therefore, only a single Ethernet
frame is discarded when no netdev socket buffer is available.

Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Mark Craske <Mark_Craske@mentor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 06:58:43 -07:00
Dean Jenkins
3f30b158eb asix: On RX avoid creating bad Ethernet frames
When RX Ethernet frames span multiple URB socket buffers,
the data stream may suffer a discontinuity which will cause
the current Ethernet frame in the netdev socket buffer
to be incomplete. This frame needs to be discarded instead
of appending unrelated data from the current URB socket buffer
to the Ethernet frame in the netdev socket buffer. This avoids
creating a corrupted Ethernet frame in the netdev socket buffer.

A discontinuity can occur when the previous URB socket buffer
held an incomplete Ethernet frame due to truncation or a
URB socket buffer containing the end of the Ethernet frame
was missing.

Therefore, add a sanity test for when an Ethernet frame
spans multiple URB socket buffers to check that the remaining
bytes of the currently received Ethernet frame point to
a good Data header 32-bit word of the next Ethernet
frame. Upon error, reset the remaining bytes variable to
zero and discard the current netdev socket buffer.
Assume that the Data header is located at the start of
the current socket buffer and attempt to process the next
Ethernet frame from there. This avoids unnecessarily
discarding a good URB socket buffer that contains a new
Ethernet frame.

Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Mark Craske <Mark_Craske@mentor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 06:58:43 -07:00
Dean Jenkins
9a5ccd8e03 asix: Simplify asix_rx_fixup_internal() netdev alloc
The code is checking that the Ethernet frame will fit into a
netdev allocated socket buffer within the constraints of MTU size,
Ethernet header length plus VLAN header length.

The original code was checking rx->remaining each loop of the while
loop that processes multiple Ethernet frames per URB and/or Ethernet
frames that span across URBs. rx->remaining decreases per while loop
so there is no point in potentially checking multiple times that the
Ethernet frame (remaining part) will fit into the netdev socket buffer.

The modification checks that the size of the Ethernet frame will fit
the netdev socket buffer before allocating the netdev socket buffer.
This avoids grabbing memory and then deciding that the Ethernet frame
is too big and then freeing the memory.

Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Mark Craske <Mark_Craske@mentor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 06:58:41 -07:00
Dean Jenkins
3bfc69abf8 asix: Tidy-up 32-bit header word synchronisation
Tidy-up the Data header 32-bit word synchronisation logic in
asix_rx_fixup_internal() by removing redundant logic tests.

The code is looking at the following cases of the Data header
32-bit word that is present before each Ethernet frame:

a) all 32 bits of the Data header word are in the URB socket buffer
b) first 16 bits of the Data header word are at the end of the URB
   socket buffer
c) last 16 bits of the Data header word are at the start of the URB
   socket buffer eg. split_head = true

Note that the lifetime of rx->split_head exists outside of the
function call and is accessed per processing of each URB. Therefore,
split_head being true acts on the next URB to be processed.

To check for b) the offset will be 16 bits (2 bytes) from the end of
the buffer then indicate split_head is true.
To check for c) split_head must be true because the first 16 bits
have been found.
To check for a) else c)

Note that the || logic of the old code included the state
(skb->len - offset == sizeof(u16) && rx->split_head) which is not
possible because the split_head cannot be true whilst checking for b).
This is because the split_head indicates that the first 16 bits have
been found and that is not possible whilst checking for the first 16
bits. Therefore simplify the logic.

Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Mark Craske <Mark_Craske@mentor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 06:58:40 -07:00
Dean Jenkins
7b0378f517 asix: Rename remaining and size for clarity
The Data header synchronisation is easier to understand
if the variables "remaining" and "size" are renamed.

Therefore, the lifetime of the "remaining" variable exists
outside of asix_rx_fixup_internal() and is used to indicate
any remaining pending bytes of the Ethernet frame that need
to be obtained from the next socket buffer. This allows an
Ethernet frame to span across multiple socket buffers.

"size" is now local to asix_rx_fixup_internal() and contains
the size read from the Data header 32-bit word.

Add "copy_length" to hold the number of the Ethernet frame
bytes (maybe a part of a full frame) that are to be copied
out of the socket buffer.

Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Mark Craske <Mark_Craske@mentor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 06:58:38 -07:00
WANG Cong
0a15afd2ea vrf: fix a kernel warning
This fixes:

 tried to remove device ip6gre0 from (null)
 ------------[ cut here ]------------
 kernel BUG at net/core/dev.c:5219!
 invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC
 CPU: 3 PID: 161 Comm: kworker/u8:2 Not tainted 4.3.0-rc2+ #1142
 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
 Workqueue: netns cleanup_net
 task: ffff8800d784a9c0 ti: ffff8800d74a4000 task.ti: ffff8800d74a4000
 RIP: 0010:[<ffffffff817f0797>]  [<ffffffff817f0797>] __netdev_adjacent_dev_remove+0x40/0xec
 RSP: 0018:ffff8800d74a7a98  EFLAGS: 00010282
 RAX: 000000000000002a RBX: 0000000000000000 RCX: 0000000000000000
 RDX: ffff88011adcf701 RSI: ffff88011adccbf8 RDI: ffff88011adccbf8
 RBP: ffff8800d74a7ab8 R08: 0000000000000001 R09: 0000000000000000
 R10: ffffffff81d190ff R11: 00000000ffffffff R12: ffff8800d599e7c0
 R13: 0000000000000000 R14: ffff8800d599e890 R15: ffffffff82385e00
 FS:  0000000000000000(0000) GS:ffff88011ac00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
 CR2: 00007ffd6f003000 CR3: 000000000220c000 CR4: 00000000000006e0
 Stack:
  0000000000000000 ffff8800d599e7c0 0000000000000b00 ffff8800d599e8a0
  ffff8800d74a7ad8 ffffffff817f0861 0000000000000000 ffff8800d599e7c0
  ffff8800d74a7af8 ffffffff817f088f 0000000000000000 ffff8800d599e7c0
 Call Trace:
  [<ffffffff817f0861>] __netdev_adjacent_dev_unlink+0x1e/0x35
  [<ffffffff817f088f>] __netdev_adjacent_dev_unlink_neighbour+0x17/0x41
  [<ffffffff817f56e6>] netdev_upper_dev_unlink+0x6c/0x13d
  [<ffffffff81674a3d>] vrf_del_slave+0x26/0x7d
  [<ffffffff81674ac3>] vrf_device_event+0x2f/0x34
  [<ffffffff81098c40>] notifier_call_chain+0x75/0x9c
  [<ffffffff81098fa2>] raw_notifier_call_chain+0x14/0x16
  [<ffffffff817ee129>] call_netdevice_notifiers_info+0x52/0x59
  [<ffffffff817f179d>] call_netdevice_notifiers+0x13/0x15
  [<ffffffff817f6f18>] rollback_registered_many+0x14f/0x24f
  [<ffffffff817f70f2>] unregister_netdevice_many+0x19/0x64
  [<ffffffff819a2455>] ip6gre_exit_net+0x163/0x177
  [<ffffffff817eb019>] ops_exit_list+0x44/0x55
  [<ffffffff817ebcb7>] cleanup_net+0x193/0x226
  [<ffffffff81091e1c>] process_one_work+0x26c/0x4d8
  [<ffffffff81091d20>] ? process_one_work+0x170/0x4d8
  [<ffffffff81092296>] worker_thread+0x1df/0x2c2
  [<ffffffff810920b7>] ? process_scheduled_works+0x2f/0x2f
  [<ffffffff810920b7>] ? process_scheduled_works+0x2f/0x2f
  [<ffffffff81097a20>] kthread+0xd4/0xdc
  [<ffffffff810bc523>] ? trace_hardirqs_on_caller+0x17d/0x199
  [<ffffffff8109794c>] ? __kthread_parkme+0x83/0x83
  [<ffffffff81a5240f>] ret_from_fork+0x3f/0x70
  [<ffffffff8109794c>] ? __kthread_parkme+0x83/0x83

Fixes: 93a7e7e837 ("net: Remove the now unused vrf_ptr")
Cc: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 06:35:51 -07:00
Johannes Berg
0316d30ea3 iwlwifi: mvm: add minimal multi-RXQ infrastructure
Since the new multi-queue capability depends on a new firmware API,
we can already add some code for it. If the new API is present, a
new opmode ops struct is used that handles the new rx_rss method.

For now, only restructure the RX handling to distinguish between
the two. Future patches will convert the new infrastructure to
actually use the new RX descriptor layout.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:34:51 +03:00
Johannes Berg
d3f555f493 iwlwifi: size firmware flags memory correctly
Instead of relying on a hard-coded constant of a maximum of 64 API and
capability bits, add a new enum value after the others that will then
always track the number of used bits in the API/capabilities. We thus
no longer need to maintain the maximum number, and on 32-bit platforms
even (currently) reduce the number of bits kept in memory.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:33 +03:00
Johannes Berg
fe96cc73c9 iwlwifi: mvm: make threshold temperatures unsigned
There's no need to have negative threshold temperatures, so make
them unsigned to avoid signedness warnings in debugfs.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:32 +03:00
Moshe Harel
91fac94089 iwlwifi: nvm: add nvm phy_sku section to debugfs
The only NVM section not captured in debugfs.

Signed-off-by: Moshe Harel <moshe.harel@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:32 +03:00
Johannes Berg
e6c21be665 iwlwifi: mvm: fix signedness warnings in ToF debugfs
Using an int* instead of u32* as the kstrtou32() output argument
obviously results in signedness warnings, change that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:31 +03:00
Eyal Shapira
1191f646bb iwlwifi: mvm: rs: dynamically switch between 80MHz and 20MHz in some scenarios
This is a tweak which has been shown to improve performance when
moving away from the AP while working in 80Mhz.
When RS decides to go down to 80MHz SISO MCS0 instead switch to 20MHz MCS4.
Go back to 80MHz MCS1 if RS can sustain 20MHz MCS5.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:31 +03:00
Johannes Berg
7c0ebd7870 iwlwifi: mvm: minor rx code cleanup
Clean up variable initialisation slightly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:31 +03:00
Johannes Berg
5736b7eba3 iwlwifi: remove IWL3165_UCODE_API_OK and _MIN
As the 3165 device uses the same firmware as 7265-D and currently
all 7000 series (including 3160/3165) use the same API versions
remove IWL3165_UCODE_API_OK and _MIN. We might have to put them
back if firmware support ever splits, but in that case might also
have to add a different MODULE_FIRMWARE statement.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:30 +03:00
Eyal Shapira
ed21a384bb iwlwifi: mvm: rs: fix success ratio comparison in rs_get_best_rate
success_ratio is actually 128 * SR in percentage while
IWL_MVM_RS_SR_NO_DECREASE is 85%. Fix this by using RS_PERCENT().
This bug caused the if branch to be always executed. This in turn
led to always selecting a rate, following a column switch, in which
the expected throughput would exceed the best expected current throughput.
In some scenarios where the success ratio isn't >85% such a rate
could be too aggressive leading us to avoid the new column.
This has the potential of causing sub optimal performance.

Reported-by: Moshe Harel <moshe.harel@intel.com>
Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:30 +03:00
Eyal Shapira
40ce5ed1e9 iwlwifi: mvm: rs: minor indentation fix
Indentation was off a bit. Fix it.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:29 +03:00
Eyal Shapira
dfa1325a08 iwlwifi: mvm: rs: remove overflowing debug message
This message isn't very useful and creates clutter.
Remove it.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:29 +03:00
Eyal Shapira
cc60c6e929 iwlwifi: mvm: rs: improve rate debug messages
Pretty print the rate full details to ease debugging.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:28 +03:00
Johannes Berg
ceef91c894 iwlwifi: mvm: stop using DEVICE_POWER_FLAGS_CAM_MSK
The firmware has always treated these two bits to mean that
powersave is enabled when POWER_SAVE_ENA is set and CAM is
clear; it doesn't use them in any non-combined way.

Therefore, it's pointless to send it two bits, and the API
should be cleaned up. Prepare the driver by removing the CAM
bit and using only POWER_SAVE_ENA to indicate whether PS is
enabled or not.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:28 +03:00
Liad Kaufman
5c1156efeb iwlwifi: mvm: support enabling a queue with a given ssn
When enabling a queue, the default SSN is 0.

Allow determining what that SSN should be, if required. This
can happen, for example, if a queue gets reconfigured.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:27 +03:00
Liad Kaufman
4ecafae9e5 iwlwifi: mvm: support using multiple ACs on single HW queue
"DQA" is shorthand for "dynamic queue allocation", with the
idea of allocating queues per-RA/TID on-demand rather than
using shared queues statically allocated per vif. The goal
of this is to enable future features (like GO PM) and to
improve performance measurements of TX traffic.

When RA/TID streams can't be neatly sorted into different AC
queues, DQA allows sharing queues for the same RA. This means
that DQA allows different ACs may reach the same HW queue.

Update the code to allow such queue sharing by having a mapping
between the HW queue and the mac80211 queues using it (as this
could be more than one queue).

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:27 +03:00
Johannes Berg
56882e6cab iwlwifi: transport: track number of allocated queues
As the transport will decide how many queues (and MSI-X vectors)
to allocate, add a field to indicate that to the op-mode so it
can size/allocate its own data structures appropriately.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:27 +03:00
Johannes Berg
a190430c5e iwlwifi: op-mode API: add rx_rss method
Upcoming hardware will have the ability to do L3 hashing for RSS,
directing data packets (and perhaps some associated metadata and
management notifications) to different MSI-X vectors.

In this case, it makes no sense to go through the full RX dispatch
since it's already known that only a subset of the possibilities
can come in, requiring a new receive method. In addition this must
know which queue the packet was received on.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:26 +03:00
Johannes Berg
1939089300 iwlwifi: mvm: remove PHY RX from handlers
Treat PHY RX specially, since it's actually pretty frequent,
doesn't need all the notication etc. code, and will have a
different handler in future hardware.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:26 +03:00
Assaf Krauss
5ac15be8fa iwlwifi: mvm: Improve debugfs tof robustness
Return a proper error when wrong parameters are passed to debugfs
tof_range_request.

Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:25 +03:00
Gregory Greenman
9ef2b8befb iwlwifi: mvm: ToF - fill bssid of responder configuration
The command needs to have the AP interfaces BSSID (which corresponds
to its address).

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:25 +03:00
Assaf Krauss
3e0fa50575 iwlwifi: mvm: Fix tof debugfs formats (dec vs. hex)
Make some input formats more natural, e.g. bandwidth and periods
are more natural in decimal than in hexadecimal.

Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:33:24 +03:00
Jesse Brandeburg
fec31ffffa i40e: fix offload of GRE tunnels
The driver still was not offloading TSO on GRE tunnels because
it forgot to set the GSO_GRE flag, causing lots of retransmits.

This fixes generic GRE traffic (like a tunnel added like below)
whereas before it would get 1Gb/s or less, now on a 10G adapter
it gets 8.7Gb/s.

ip ad ad 11.1.0.2/24 dev ens2f0
ip l set ens2f0 up
ip link add gre2 type gretap remote 11.1.0.1 local 11.1.0.2 dev ens2f0
ip l set gre2 up
ip ad ad 192.168.124.2/24 dev gre2
ping 192.168.124.1
netperf -H 192.168.124.1

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 04:31:41 -07:00
David S. Miller
d2dd52bf3f ath9k:
* declare required extra tx headroom
 
 ath10k:
 
 * fix DMA related firmware crashes on multiple devices
 
 rt2800usb:
 
 * add usb ID 1b75:3070 for Airlive WT-2000USB
 
 b43:
 
 * probe bcma core (device) rev 0x15
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Merge tag 'wireless-drivers-for-davem-2015-10-01' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
pull-request: wireless-drivers 2015-10-01

ath9k:

* declare required extra tx headroom

ath10k:

* fix DMA related firmware crashes on multiple devices

rt2800usb:

* add usb ID 1b75:3070 for Airlive WT-2000USB

b43:

* probe bcma core (device) rev 0x15
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 04:29:06 -07:00
Andrei Otcheretianski
dbf73d4a8b iwlwifi: mvm: flush fw_dump_wk when mvm fails to start
FW dump may be triggered when running init ucode, for example due to a
sysassert. In this case fw_dump_wk may run after mvm is freed, resulting
in a kernel panic.
Fix it by flushing the work.

Fixes: 01b988a708af ("iwlwifi: mvm: allow to collect debug data when restart is disabled")
Cc: <stable@vger.kernel.org> [3.18+]
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:04:16 +03:00
kbuild test robot
9886ce2b9d net: encx24j600_exit() can be static
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 04:02:43 -07:00
Jon Ringle
04fbfce7a2 net: Microchip encx24j600 driver
This ethernet driver supports the Micorchip enc424j600/626j600 Ethernet
controller over a SPI bus interface. This driver makes use of the regmap API to
optimize access to registers by caching registers where possible.

Datasheet:
http://ww1.microchip.com/downloads/en/DeviceDoc/39935b.pdf

Signed-off-by: Jon Ringle <jringle@gridpoint.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 04:02:41 -07:00
Arik Nemtsov
1a3fe0b2b6 iwlwifi: mvm: init card correctly on ctkill exit check
During the CT-kill exit flow, the card is powered up and partially
initialized to check if the temperature is already low enough.
Unfortunately the init bails early because the CT-kill flag is set.
Make the code bail early only for HW RF-kill, as was intended by the
author. CT-kill is self-imposed and is not really RF-kill.

Fixes: 31b8b343e0 ("iwlwifi: fix RFkill while calibrating")
Cc: <stable@vger.kernel.org> [3.18+]
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:02:07 +03:00
Luca Coelho
f08f625876 iwlwifi: pci: add a few more PCI subvendor IDs for the 7265 series
Add 3 new subdevice IDs for the 0x095A device ID and 2 for the 0x095B
device ID.

Cc: <stable@vger.kernerl.org> [3.13+]
Reported-by: Jeremy <jeremy.bomkamp@gmail.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 14:01:27 +03:00
Johannes Berg
b5a48134f8 iwlwifi: fix firmware filename for 3160
The MODULE_FIRMWARE() for 3160 should be using the 7260 version as
it's done in the device configuration struct instead of referencing
IWL3160_UCODE_API_OK which doesn't even exist.

Cc: <stable@vger.kernel.org> [3.8+]
Reported-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 13:56:49 +03:00
Avraham Stern
e9cb0327b2 iwlwifi: mvm: clear csa countdown when AP is stopped
The csa_countdown flag was not cleared when the AP is stopped.
As a result, if the AP was stopped after csa_countdown had started,
all the folowing channel switch commands would fail.
Fix that by clearing the csa_countdown flag when the AP is stopped.

Cc: <stable@vger.kernel.org> [3.17+]
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 13:56:35 +03:00
Govindarajulu Varadarajan
937317c7c1 enic: do hang reset only in case of tx timeout
The current code invokes hang reset in case of error interrupt. We should
hang reset only in case of tx timeout. This because of the way hang reset
is implemented in firmware. Hang reset takes more firmware resources than
soft reset. Adaptor does not generate error interrupt in case of tx
timeout.

Hang reset only in case of tx timeout, in .ndo_tx_timeout. Do soft reset
otherwise. Introduce deferred work, enic_tx_hang_reset, to do hang reset.

Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:51:35 -07:00
Govindarajulu Varadarajan
cc809237e1 enic: handle spurious error interrupt
Some of the enic adaptors are know to generate spurious interrupts. When
error interrupt is generated, driver just resets the device. This patch
resets the device only when an error is occurred.

Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:51:33 -07:00
Johannes Berg
2cf5eb3ab7 iwlwifi: mvm: fix D3 firmware PN programming
The code to send the RX PN data (for each TID) to the firmware
has a devastating bug: it overwrites the data for TID 0 with
all the TID data, leaving the remaining TIDs zeroed. This will
allow replays to actually be accepted by the firmware, which
could allow waking up the system.

Cc: <stable@vger.kernel.org> [3.1+]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 13:50:20 +03:00
Johannes Berg
5bd166872d iwlwifi: dvm: fix D3 firmware PN programming
The code to send the RX PN data (for each TID) to the firmware
has a devastating bug: it overwrites the data for TID 0 with
all the TID data, leaving the remaining TIDs zeroed. This will
allow replays to actually be accepted by the firmware, which
could allow waking up the system.

Cc: <stable@vger.kernel.org> [3.1+]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 13:49:29 +03:00
Hariprasad Shenai
85412255ef cxgb4: Report correct link speed for unsupported ones
When we get garbage from the firmware with weird Port Speeds,
etc. we should emit a warning regarding unsupported speeds rather than
use the bogus default of "10Mbps" which isn't even an option in the
firmware Port Information message

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:48:41 -07:00
Hariprasad Shenai
da4976e17b cxgb4: Adds a new Device Log Facility FW_DEVLOG_FACILITY_CF
The firmware team added a new Device Log Facility FW_DEVLOG_FACILITY_CF,
but the driver has been decoding Device Log messages with that Facility as
"(NULL)", fixing it.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:48:41 -07:00
Hariprasad Shenai
b3695540ba cxgb4: For T4, don't read the Firmware Mailbox Control register
T4 doesn't have the Shadow copy of the register which we can read without
side effect. So don't read mbox control register for T4 adapter

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:48:40 -07:00
Hariprasad Shenai
8119c01800 cxgb4 : Update T4/T5/T6 register ranges
Update T4/T5/T6 adapter register ranges so that it doesn't read non
existent registers when dumped using ethtool

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:48:39 -07:00
Johannes Berg
6645d5e441 iwlwifi: mvm: fix D3 CCMP TX PN assignment
When going into/coming out of D3, the TX PN must be programmed into
and restored from the firmware respectively. The restore was broken
due to my previous commit to move PN assignment into the driver.
Sending the PN to the firmware still worked since we now use the
counter that's shared with mac80211, but accessing it through the
mac80211 API makes no sense now.

Fix this by reading/writing the counter directly. This actually
simplifies the code since we don't need to round-trip through the
key_seq structure.

Fixes: ca8c0f4bed ("iwlwifi: mvm: move TX PN assignment for CCMP to the driver")
Cc: <stable@vger.kernel.org> [4.1+]
Reported-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 13:48:36 +03:00
Vladimir Zapolskiy
33a8316d9c net: lpc_eth: fix warnings caused by enabling unprepared clock
If common clock framework is configured, the driver generates warnings,
which are fixed by this change:

    WARNING: CPU: 0 PID: 1 at linux/drivers/clk/clk.c:727 clk_core_enable+0x2c/0xa4()
    Modules linked in:
    CPU: 0 PID: 1 Comm: swapper Not tainted 4.3.0-rc2+ #141
    Hardware name: LPC32XX SoC (Flattened Device Tree)
    Backtrace:
    [<>] (dump_backtrace) from [<>] (show_stack+0x18/0x1c)
    [<>] (show_stack) from [<>] (dump_stack+0x20/0x28)
    [<>] (dump_stack) from [<>] (warn_slowpath_common+0x90/0xb8)
    [<>] (warn_slowpath_common) from [<>] (warn_slowpath_null+0x24/0x2c)
    [<>] (warn_slowpath_null) from [<>] (clk_core_enable+0x2c/0xa4)
    [<>] (clk_core_enable) from [<>] (clk_enable+0x24/0x38)
    [<>] (clk_enable) from [<>] (lpc_eth_drv_probe+0xfc/0x99c)
    [<>] (lpc_eth_drv_probe) from [<>] (platform_drv_probe+0x50/0xa0)
    [<>] (platform_drv_probe) from [<>] (driver_probe_device+0x18c/0x408)
    [<>] (driver_probe_device) from [<>] (__driver_attach+0x70/0x94)
    [<>] (__driver_attach) from [<>] (bus_for_each_dev+0x74/0x98)
    [<>] (bus_for_each_dev) from [<>] (driver_attach+0x20/0x28)
    [<>] (driver_attach) from [<>] (bus_add_driver+0x11c/0x248)
    [<>] (bus_add_driver) from [<>] (driver_register+0xa4/0xe8)
    [<>] (driver_register) from [<>] (__platform_driver_register+0x50/0x64)
    [<>] (__platform_driver_register) from [<>] (lpc_eth_driver_init+0x18/0x20)
    [<>] (lpc_eth_driver_init) from [<>] (do_one_initcall+0x11c/0x1dc)
    [<>] (do_one_initcall) from [<>] (kernel_init_freeable+0x10c/0x1d4)
    [<>] (kernel_init_freeable) from [<>] (kernel_init+0x10/0xec)
    [<>] (kernel_init) from [<>] (ret_from_fork+0x14/0x24)

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:41:12 -07:00
David B. Robins
f6194bcf03 net: usb: asix: Fix crash on skb alloc failure
If asix_rx_fixup_internal() fails to allocate rx->ax_skb, it will return
but not clear rx->size. rx points to driver private data. A later call
assumes that nonzero size means ax_skb was allocated and passes a null
ax_skb to skb_put. Changed allocation failure return to clear size first.

Found testing board with AX88772B devices.

Signed-off-by: David B. Robins <linux@davidrobins.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:31:27 -07:00
Lendacky, Thomas
50789845cf amd-xgbe: Remove the XGBE_LINK state bit
The XGBE_LINK bit is used just to determine whether to call the
netif_carrier_on/off functions. Rather than define and use this bit,
just call the functions. The netif_carrier_ok function can be used in
place of checking the XGBE_LINK bit in the future.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:23:27 -07:00
Lendacky, Thomas
afb43e8a0a amd-xgbe: Use device workqueue instead of system workqueue
The driver creates, flushes and destroys a device workqueue but queues
work to the system workqueue. Switch from using the system workqueue to
the device workqueue.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:23:26 -07:00
Lendacky, Thomas
72c9ac4e1f amd-xgbe: Add receive buffer unavailable statistic
Add a statistic that tracks how many times an interrupt is generated for
a receive buffer not being available to the hardware which prevents the
hardware from being able to DMA the received data.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:23:26 -07:00
Lendacky, Thomas
9c439e4b73 amd-xgbe: Simplify calculation and setting of queue fifos
The calculation of the Tx and Rx fifo sizes can be calculated rather
than hardcoded in a switch statement. Additionally, the per-queue fifo
sizes can be calculated rather than hardcoded using if/else if statements
that can possibly underutilize the available fifo area.

Change the code to calculate the fifo sizes and the per-queue fifo sizes
to simplify the code and make best use of the available fifo.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:23:25 -07:00
Lendacky, Thomas
e5dd8b8110 amd-xgbe: Add ethtool error and debug messages
Add error and dynamic debug messages to various ethtool functions in
the driver while also removing the DBGPR debug print calls. Also, change
the message level for some error messages from alert to err.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:23:25 -07:00
Lendacky, Thomas
349fb2d700 amd-xgbe: Add ethtool support for setting the msglevel
Provide the ethtool functions to support getting and setting the
msglevel for the driver.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:23:23 -07:00
Lendacky, Thomas
47f2e6c275 amd-xgbe: Use proper DT / ACPI precedence checking
Device tree presence takes precedence over ACPI in the device_* APIs.
The amd-xgbe driver should follow the same precedence. Update the check
on whether to use DT / ACPI to follow this.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:23:22 -07:00
Lendacky, Thomas
3947d78a54 amd-xgbe: Remove an unneeded semicolon on a switch statement
Remove an unneeded semicolon at the end of a switch statement block.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:23:22 -07:00
Arnd Bergmann
52f4f91893 mwifiex: avoid gettimeofday in ba_threshold setting
mwifiex_get_random_ba_threshold() uses a complex homegrown implementation
to generate a pseudo-random number from the current time as returned
from do_gettimeofday().

This currently requires two 32-bit divisions plus a couple of other
computations that are eventually discarded as only eight bits of
the microsecond portion are used at all.

We could replace this with a call to get_random_bytes(), but that
might drain the entropy pool too fast if this is called for each
packet.

Instead, this patch converts it to use ktime_get_ns(), which is a
bit faster than do_gettimeofday(), and then uses a similar algorithm
as before, but in a way that takes both the nanosecond and second
portion into account for slightly-more-but-still-not-very-random
pseudorandom number.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Amitkumar Karwar <akarwar@marvell.com>
Cc: Nishant Sarmukadam <nishants@marvell.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:16:44 -07:00
Arnd Bergmann
e253fb74d6 mwifiex: use ktime_get_real for timestamping
The mwifiex_11n_aggregate_pkt() function creates a ktime_t from
a timeval returned by do_gettimeofday, which is slow and causes
an overflow in 2038 on 32-bit architectures.

This solves both problems by using the appropriate ktime_get_real()
function.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Amitkumar Karwar <akarwar@marvell.com>
Cc: Nishant Sarmukadam <nishants@marvell.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:16:43 -07:00
Arnd Bergmann
40c9b0796d net: igb: avoid using timespec
We want to deprecate the use of 'struct timespec' on 32-bit
architectures, as it is will overflow in 2038. The igb
driver uses it to read the current time, and can simply
be changed to use ktime_get_real_ts64() instead.

Because of hardware limitations, there is still an overflow
in year 2106, which we cannot really avoid, but this documents
the overflow.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: intel-wired-lan@lists.osuosl.org
Reviewed-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:16:42 -07:00
Arnd Bergmann
0a6241551d net: stmmac: avoid using timespec
We want to deprecate the use of 'struct timespec' on 32-bit
architectures, as it is will overflow in 2038. The stmmac
driver uses it to read the current time, and can simply
be changed to use ktime_get_real_ts64() instead.

Because of hardware limitations, there is still an overflow
in year 2106, which we cannot really avoid, but this documents
the overflow.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:16:41 -07:00
Arnd Bergmann
be7ccdc36b net: fec: avoid timespec use
The fec_ptp_enable_pps uses an open-coded implementation of ns_to_timespec,
which will be removed eventually as it is not y2038-safe on 32-bit
architectures. Two more instances of the same code in this file were
already converted to use the safe ns_to_timespec64 in commit 6630514fce
("ptp: fec: use helpers for converting ns to timespec"), this changes
the last one as well.

The seconds portion here is actually unused and we could just remove the
timespec variable, but using ns_to_timespec64 can still be better as the
implementation can be hand-optimized in the future.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Fugang Duan <b38611@freescale.com>
Cc: Luwei Zhou <b45643@freescale.com>
Cc: Frank Li <Frank.Li@freescale.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:16:39 -07:00
David S. Miller
74910ea49d linux-can-fixes-for-4.3-20150930
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Merge tag 'linux-can-fixes-for-4.3-20150930' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2015-09-30

this is a pull request of a single patch for 4.3.

The patch is by Stephane Grosjean and add support for the peak OEM PCI card to
the peak_pci driver by adding its device ID.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:07:02 -07:00
Geliang Tang
9dc80a7431 amd-xgbe: fix potential memory leak in xgbe-debugfs
Added kfree() to avoid the memory leak when debugfs_create_dir() fails.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:05:41 -07:00
Guillaume Nault
e6740165b8 ppp: don't override sk->sk_state in pppoe_flush_dev()
Since commit 2b018d57ff ("pppoe: drop PPPOX_ZOMBIEs in pppoe_release"),
pppoe_release() calls dev_put(po->pppoe_dev) if sk is in the
PPPOX_ZOMBIE state. But pppoe_flush_dev() can set sk->sk_state to
PPPOX_ZOMBIE _and_ reset po->pppoe_dev to NULL. This leads to the
following oops:

[  570.140800] BUG: unable to handle kernel NULL pointer dereference at 00000000000004e0
[  570.142931] IP: [<ffffffffa018c701>] pppoe_release+0x50/0x101 [pppoe]
[  570.144601] PGD 3d119067 PUD 3dbc1067 PMD 0
[  570.144601] Oops: 0000 [#1] SMP
[  570.144601] Modules linked in: l2tp_ppp l2tp_netlink l2tp_core ip6_udp_tunnel udp_tunnel pppoe pppox ppp_generic slhc loop crc32c_intel ghash_clmulni_intel jitterentropy_rng sha256_generic hmac drbg ansi_cprng aesni_intel aes_x86_64 ablk_helper cryptd lrw gf128mul glue_helper acpi_cpufreq evdev serio_raw processor button ext4 crc16 mbcache jbd2 virtio_net virtio_blk virtio_pci virtio_ring virtio
[  570.144601] CPU: 1 PID: 15738 Comm: ppp-apitest Not tainted 4.2.0 #1
[  570.144601] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[  570.144601] task: ffff88003d30d600 ti: ffff880036b60000 task.ti: ffff880036b60000
[  570.144601] RIP: 0010:[<ffffffffa018c701>]  [<ffffffffa018c701>] pppoe_release+0x50/0x101 [pppoe]
[  570.144601] RSP: 0018:ffff880036b63e08  EFLAGS: 00010202
[  570.144601] RAX: 0000000000000000 RBX: ffff880034340000 RCX: 0000000000000206
[  570.144601] RDX: 0000000000000006 RSI: ffff88003d30dd20 RDI: ffff88003d30dd20
[  570.144601] RBP: ffff880036b63e28 R08: 0000000000000001 R09: 0000000000000000
[  570.144601] R10: 00007ffee9b50420 R11: ffff880034340078 R12: ffff8800387ec780
[  570.144601] R13: ffff8800387ec7b0 R14: ffff88003e222aa0 R15: ffff8800387ec7b0
[  570.144601] FS:  00007f5672f48700(0000) GS:ffff88003fc80000(0000) knlGS:0000000000000000
[  570.144601] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  570.144601] CR2: 00000000000004e0 CR3: 0000000037f7e000 CR4: 00000000000406a0
[  570.144601] Stack:
[  570.144601]  ffffffffa018f240 ffff8800387ec780 ffffffffa018f240 ffff8800387ec7b0
[  570.144601]  ffff880036b63e48 ffffffff812caabe ffff880039e4e000 0000000000000008
[  570.144601]  ffff880036b63e58 ffffffff812cabad ffff880036b63ea8 ffffffff811347f5
[  570.144601] Call Trace:
[  570.144601]  [<ffffffff812caabe>] sock_release+0x1a/0x75
[  570.144601]  [<ffffffff812cabad>] sock_close+0xd/0x11
[  570.144601]  [<ffffffff811347f5>] __fput+0xff/0x1a5
[  570.144601]  [<ffffffff811348cb>] ____fput+0x9/0xb
[  570.144601]  [<ffffffff81056682>] task_work_run+0x66/0x90
[  570.144601]  [<ffffffff8100189e>] prepare_exit_to_usermode+0x8c/0xa7
[  570.144601]  [<ffffffff81001a26>] syscall_return_slowpath+0x16d/0x19b
[  570.144601]  [<ffffffff813babb1>] int_ret_from_sys_call+0x25/0x9f
[  570.144601] Code: 48 8b 83 c8 01 00 00 a8 01 74 12 48 89 df e8 8b 27 14 e1 b8 f7 ff ff ff e9 b7 00 00 00 8a 43 12 a8 0b 74 1c 48 8b 83 a8 04 00 00 <48> 8b 80 e0 04 00 00 65 ff 08 48 c7 83 a8 04 00 00 00 00 00 00
[  570.144601] RIP  [<ffffffffa018c701>] pppoe_release+0x50/0x101 [pppoe]
[  570.144601]  RSP <ffff880036b63e08>
[  570.144601] CR2: 00000000000004e0
[  570.200518] ---[ end trace 46956baf17349563 ]---

pppoe_flush_dev() has no reason to override sk->sk_state with
PPPOX_ZOMBIE. pppox_unbind_sock() already sets sk->sk_state to
PPPOX_DEAD, which is the correct state given that sk is unbound and
po->pppoe_dev is NULL.

Fixes: 2b018d57ff ("pppoe: drop PPPOX_ZOMBIEs in pppoe_release")
Tested-by: Oleksii Berezhniak <core@irc.lg.ua>
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-05 03:04:15 -07:00
Nicolas Iooss
bb74360937 iwlwifi: mvm: fix tof.h header guard
Commit ce7929186a ("iwlwifi: mvm: add basic Time of Flight (802.11mc
FTM) support") created drivers/net/wireless/iwlwifi/mvm/tof.h with a
broken header guard:

    #ifndef __tof
    #define __tof_h__

    ...

    #endif /* __tof_h__ */

Use __tof_h__ in the first line.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 12:29:13 +03:00
Ilan Peer
f82c83397b iwlwifi: mvm: Correctly update MAC context on add/del station
Commit "iwlwifi: mvm: don't ask beacons when AP vif and no
assoc sta" directly called iwl_mvm_mac_ctxt_cmd_ap() to update the
MAC context when adding/removing a station. However, this ignores
the case that the vif is actually a P2P GO.

Fix this by calling iwl_mvm_mac_ctxt_changed() that handles P2P GO
case as well.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 12:29:09 +03:00
Liad Kaufman
69191afef3 iwlwifi: mvm: fix default disabled aggs in sta
For the ADD_STA command, when the flag for aggregation
disabling is set, there is a bitmap indicated what TIDs
are disabling aggregations and what aren't. Currently, by
default, all TIDs allow for aggregations since the value
we begin with is 0.

Change this default value to 0xffff so all TIDs don't
allow aggregations until explicitly turned on.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 12:29:04 +03:00
Johannes Berg
acf9de3dfb iwlwifi: enable tracing by default
Tracing, if disabled at runtime, has very low overhead with
great returns on debugging. It therefore makes sense to have
it enabled by default (if the kernel enables EVENT_TRACING).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 12:29:00 +03:00
Johannes Berg
a644912651 iwlwifi: mvm: correct skip-over-DTIM implementation
The formula used in D0i3 should also be used in D3, instead of
the hardcoded value.

Additionally, the formula is actually wrong - if the calculation
yields 0 then 1 should be used instead of disabling entirely.
Also need to add 1 since the firmware needs 3 to skip 2, etc.

To make all this clearer, centralize the calculation into a
single function.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 12:28:50 +03:00
Moshe Harel
bb35dc1418 iwlwifi: nvm: force 1x1 antenna in Series 8000
This is a workaround to an OTP bug. In Series 8000 1x1, the OTP
0xA052 defines 2x2 antenna configuration. This workaround overrides
the decision based on HW id and MIMO disabled bit which is correct
in the OTP and set to disabled.

Signed-off-by: Moshe Harel <moshe.harel@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 12:28:44 +03:00
Aviya Erenfeld
09eef3307e iwlwifi: mvm: move DTS command and notification to new group
Move the DTS measurement command and notification from short
command header to the new PHY command group for firmware
supporting the extended command headers.

Signed-off-by: Aviya Erenfeld <aviya.erenfeld@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2015-10-05 12:28:39 +03:00
Mitch Williams
8552d85442 i40evf: don't blow away MAC address
Under certain circumstances, we can get an extra VF_RESOURCES message
from the PF driver at runtime. When this happens, we need to parse it
because our VSI may have changed out from underneath us, and that will
affect our relationship with the PF driver.

However, parsing the resources message also blows away our current MAC
address in the hardware struct, usually with all zeros. When this
happens, the next time the interface is opened, it will have no MAC
address and will a) not work and b) complain.

Fix this issue by restoring the current MAC address from the netdev
struct after we parse the resource message.

Change-ID: I6cd1b624fc20432f81dc901166c8de195b8e0e65
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-03 19:24:46 -07:00
Shannon Nelson
24408e7ae6 i40e/i40evf: grab the AQ spinlocks before clearing registers
Make sure we have the spinlocks before we clear the ARQ and ASQ management
registers.  Also, widen the locked portion and make a sanity check earlier
in the send function to be sure we're working with safe register values.

Change-ID: I34b56044b33461ed780f3d2de8d62826cdf933f9
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-03 19:23:47 -07:00
Anjali Singhai
126b63d9d3 i40e: Fix a memory leak in X722 rss config path
In any case free the memory allocated before exiting.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-03 19:09:50 -07:00
Jiang Liu
27ca275350 i40evf: Use numa_mem_id() to better support memoryless node
Function i40e_clean_rx_irq() tries to reuse memory pages allocated
from the nearest node. To better support memoryless node, use
numa_mem_id() instead of numa_node_id() to get the nearest node with
memory.

This change should only affect performance.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-03 19:02:53 -07:00
Jiang Liu
8dc5562e4e i40e: Use numa_mem_id() to better support memoryless node
Function i40e_clean_rx_irq() tries to reuse memory pages allocated
from the nearest node. To better support memoryless node, use
numa_mem_id() instead of numa_node_id() to get the nearest node with
memory.

This change should only affect performance.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-10-03 18:49:27 -07:00
David S. Miller
4236e2a1ad Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-09-30

This series contains updates to i40e and i40evf only.

Vasily Averin provides a couple of rtnl lock/unlock fixes for both i40e
and i40evf.

Shannon provides several updates and fixes, first fixes up a type clash
in i40e_aq_rc_to_posix(), where the error codes are signed values, so we
need to treat them as such.  Then fixes up a padding issue where an
extra byte is added in i40e_aqc_get_cee_dcb_cfg_v1_resp to directly
acknowledge the padding.  Updated i40e to keep debugfs register read
and writes from accessing outside of the io-remapped space.  Added
support and device id for another 20 GbE device.

Jesse fixes the transmit hand workaround code for ARM that was causing
Tx hangs to still occur occasionally when there really was no hang.  Then
fixed the receive dropped counter to show up in netstat interface.
Refactor the interrupt enable function since it was always making the
caller add the base_vector from the VSI struct which is already passed
to the function.  Fix kbuild warnings found in 0day build infrastructure
by adding a harmless cast to a dev_info(), also fix 32 bit build
warnings found by sparse.

Greg fixed a configuration error that results if a port VLAN is set
for a VF before the VF driver is loaded, so that when the VF driver is
loaded the port VLAN is ignored.

Mitch fixes the use of QOS field consistently in
i40e_ndo_set_vf_port_vlan().  Modified the init timing of the driver
to increase stability on load/unload and SR-IOV enable/disable cycles.

Anjali updates i40e to not collect VEB stats if they are disabled in the
hardware for performance reasons.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-03 05:16:50 -07:00
Kazuya Mizuguchi
22d4df8ff3 ravb: Add support for r8a7795 SoC
This patch supports the r8a7795 SoC by:
- Using two interrupts
  + One for E-MAC
  + One for everything else
  + Both can be handled by the existing common interrupt handler, which
    affords a simpler update to support the new SoC. In future some
    consideration may be given to implementing multiple interrupt handlers
- Limiting the phy speed to 100Mbit/s for the new SoC;
  at this time it is not clear how this restriction may be lifted
  but I hope it will be possible as more information comes to light

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
[horms: reworked]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-03 05:05:21 -07:00
Kazuya Mizuguchi
e2dbb33ad9 ravb: Provide dev parameter to DMA API
This patch is in preparation for using this driver on arm64 where the
implementation of __dma_alloc_coherent fails if a device parameter is not
provided.

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Masaru Nagai <masaru.nagai.vx@renesas.com>
[horms: squashed into a single patch]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-03 05:05:19 -07:00
Simon Horman
f3a6bd393c phylib: Add phy_set_max_speed helper
Add a helper to allow ethernet drivers to limit the speed of a phy
(that they are attached to).

This mainly involves factoring out the business-end of
of_set_phy_supported() and exporting a new symbol.

This code seems to be open coded in several places, in several different
variants.

It is is envisaged that this will be used in situations where setting the
"max-speed" property in DT is not appropriate, e.g. because the maximum
speed is not a property of the phy hardware.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-03 05:05:18 -07:00
Jiri Pirko
9e8f4a548a switchdev: push object ID back to object structure
Suggested-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-03 04:49:40 -07:00
Jiri Pirko
648b4a995a switchdev: bring back switchdev_obj and use it as a generic object param
Replace "void *obj" with a generic structure. Introduce couple of
helpers along that.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-03 04:49:39 -07:00
Jiri Pirko
52ba57cfdc switchdev: rename switchdev_obj_fdb to switchdev_obj_port_fdb
Make the struct name in sync with object id name.

Suggested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-03 04:49:39 -07:00
Jiri Pirko
8f24f3095d switchdev: rename switchdev_obj_vlan to switchdev_obj_port_vlan
Make the struct name in sync with object id name.

Suggested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-03 04:49:38 -07:00
Jiri Pirko
1f86839874 switchdev: rename SWITCHDEV_ATTR_* enum values to SWITCHDEV_ATTR_ID_*
To be aligned with obj.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-03 04:49:37 -07:00
Jiri Pirko
57d80838da switchdev: rename SWITCHDEV_OBJ_* enum values to SWITCHDEV_OBJ_ID_*
Suggested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-03 04:49:36 -07:00
Larry Finger
54328e6404 rtlwifi: rtl8821ae: Fix system lockups on boot
In commit 1277fa2ab2 ("rtlwifi: Remove the clear interrupt routine from all
drivers"), the code that cleared all interrupt enable bits before setting them
was removed for all PCI drivers. This fixed an issue that caused TX to be
blocked for 3-5 seconds. On some RTL8821AE units, this change causes soft
lockups to occur on boot. For that reason, the portion of the earlier commit
that applied to rtl8821ae is reverted. Kernels 4.1 and newer are affected.

See http://marc.info/?l=linux-wireless&m=144373370103285&w=2 and
https://bugzilla.opensuse.org/show_bug.cgi?id=944978 for two cases where
this regression affected user systems. Note that this bug does not appear on
any of the developer's setups. For those users whose systems are affected
by the TX blockage, but do not lock up on boot, a module parameter is added
to disable the interrupt clear

Fixes: 1277fa2ab2 ("rtlwifi: Remove the clear interrupt routine from all drivers")
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [V4.1+]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-03 09:41:32 +03:00
David S. Miller
f6d3125fa3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	net/dsa/slave.c

net/dsa/slave.c simply had overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-02 07:21:25 -07:00
Linus Torvalds
3deaa4f531 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

1) Fix regression in SKB partial checksum handling, from Pravin B
   Shalar.

2) Fix VLAN inside of VXLAN handling in i40e driver, from Jesse
   Brandeburg.

3) Cure softlockups during accept() in SCTP, from Karl Heiss.

4) MSG_PEEK should return multiple SKBs worth of data in AF_UNIX, from
   Aaron Conole.

5) IPV6 erroneously ignores output interface specifier in lookup key for
   route lookups, fix from David Ahern.

6) In Marvell DSA driver, forward unknown frames to CPU port, from
   Andrew Lunn.

7) Mission flow flag initializations in some code paths, from David
   Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  net: Initialize flow flags in input path
  net: dsa: fix preparation of a port STP update
  testptp: Silence compiler warnings on ppc64
  net/mlx4: Handle return codes in mlx4_qp_attach_common
  dsa: mv88e6xxx: Enable forwarding for unknown to the CPU port
  skbuff: Fix skb checksum partial check.
  net: ipv6: Add RT6_LOOKUP_F_IFACE flag if oif is set
  net sysfs: Print link speed as signed integer
  bna: fix error handling
  af_unix: return data from multiple SKBs on recv() with MSG_PEEK flag
  af_unix: Convert the unix_sk macro to an inline function for type safety
  net: sctp: Don't use 64 kilobyte lookup table for four elements
  l2tp: protect tunnel->del_work by ref_count
  net/ibm/emac: bump version numbers for correct work with ethtool
  sctp: Prevent soft lockup when sctp_accept() is called during a timeout event
  sctp: Whitespace fix
  i40e/i40evf: check for stopped admin queue
  i40e: fix VLAN inside VXLAN
  r8169: fix handling rtl_readphy result
  net: hisilicon: fix handling platform_get_irq result
2015-10-01 21:55:35 -04:00
Linus Torvalds
46c8217c4a Changes for 4.3-rc4
- Fixes for mlx5 related issues
 - Fixes for ipoib multicast handling
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull rdma fixes from Doug Ledford:
 - Fixes for mlx5 related issues
 - Fixes for ipoib multicast handling

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
  IB/ipoib: increase the max mcast backlog queue
  IB/ipoib: Make sendonly multicast joins create the mcast group
  IB/ipoib: Expire sendonly multicast joins
  IB/mlx5: Remove pa_lkey usages
  IB/mlx5: Remove support for IB_DEVICE_LOCAL_DMA_LKEY
  IB/iser: Add module parameter for always register memory
  xprtrdma: Replace global lkey with lkey local to PD
2015-10-01 16:38:52 -04:00
Jesse Brandeburg
9c70d7cebf i40e: fix 32 bit build warnings
Sparse found some issues with 32 bit compilation, which probably should
at least work without warning.  Not only that, but the code was wrong.
Thanks sparse!!

And thanks to the kbuild robot zero day testing for finding this issue.

$ make ARCH=i386 M=drivers/net/ethernet/intel/i40e C=2 CF="-D__CHECK_ENDIAN__"
  CHECK   drivers/net/ethernet/intel/i40e/i40e_main.c
  include/linux/etherdevice.h:79:32: warning: restricted __be16 degrades to integer
  drivers/net/ethernet/intel/i40e/i40e_main.c:7565:17: warning: shift too big (32) for type unsigned long
  drivers/net/ethernet/intel/i40e/i40e_main.c:7565:17: warning: shift too big (42) for type unsigned long
  drivers/net/ethernet/intel/i40e/i40e_main.c:7565:17: warning: shift too big (39) for type unsigned long
  drivers/net/ethernet/intel/i40e/i40e_main.c:7565:17: warning: shift too big (40) for type unsigned long

CC: kbuild-all@01.org
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:47:48 -07:00
Jesse Brandeburg
e88ae667ec i40e: fix kbuild warnings
The 0day build infrastructure found some issues in i40e, this
removes the warnings by adding a harmless cast to a dev_info.

CC: kbuild-all@01.org
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:45:23 -07:00
Mitch Williams
9b32b0b5dd i40evf: tweak init timing
This patch tweaks the init timing of the driver just a little bit to
increase stability on load/unload and SR-IOV enable/disable cycles.

First, run the init_task loop a little quicker in order to reduce
overall init time.

Second, stagger the start of the init task based on the device's
PCIe function ID. This lessens the impact on the firmware when a
whole bunch of VFs are initialized simultaneously, e.g. enabling
SR-IOV without the VF driver blacklisted. For single VFs assigned
to VMs this will have no effect as the function ID will always be 0.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:42:58 -07:00
Jesse Brandeburg
e908f81562 i40e: warn on double free
Down was requesting queue disables, but then exited immediately without
waiting for the queues to actually disable. This could allow any
function called after i40evf_down to run immediately, including
i40evf_up, and causes a memory leak.

This issue has been fixed in a recent refactor of the reset code, but
add a couple WARN_ONs in the slow path to help us recognize if we
reintroduce this issue or if we missed any cases.

Change-ID: I27b6b5c9a79c1892f0ba453129f116bc32647dd0
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:40:36 -07:00
Jesse Brandeburg
7845548de7 i40e: refactor interrupt enable
The interrupt enable function was always making the caller add
the base_vector from the VSI struct which is already passed to
the function. Just collapse the math into the helper function.

Change-ID: I54ef33aa7ceebc3231c3cc48f7b39fd0c3ff5806
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:38:10 -07:00
Anjali Singhai Jain
d1a8d27534 i40e: Strip VEB stats if they are disabled in HW
Due to performance reasons, VEB stats have been disabled in the hw. This
patch adds code to check for that condition before accumulating these
stats.

Change-ID: I7d805669476fedabb073790403703798ae5d878e
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:35:45 -07:00
Shannon Nelson
48a3b512e8 i40e/i40evf: add new device id 1588
Add new device id and support for another 20Gb device.

Change-ID: Ib1b61e5bb6201d84953f97cade39a6e3369c2cf2
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:33:21 -07:00
Greg Rose
201991004d i40e: Remove useless message
Remove a useless message that blathers on whenever a vxlan port is deleted.

Change-ID: If63fb8cf38e56cf433b68e498f11389de51919ba
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:30:59 -07:00
Shannon Nelson
2ac8b675d9 i40e: limit debugfs io ops
Don't let the debugfs register read and write commands try to access
outside of the ioremapped space.  While we're at it, remove the use of
a misleading constant.

Change-ID: Ifce2893e232c65c7a76c23532c658f298218a81b
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:28:36 -07:00
Mitch Williams
f7fc2f2eb1 i40e: use QOS field consistently
In i40e_ndo_set_vf_port_vlan, we were using the QOS value
inconsistently, sometimes shifting it, sometimes not. Do the shift-and-
or operation correctly, once, and use the result consistently everywhere
in the function.

Change-ID: I46f062f3edc90a8a017ecec9137f4d1ab0ab9e41
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:26:13 -07:00
Jesse Brandeburg
d8201e200a i40e: count drops in netstat interface
The i40e rx_dropped counter was not showing up in netstat -i.
Add the right counter to be updated with the stats.

Change-ID: I4dd552e9995836099184f9d9a08e90edb591155f
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:23:50 -07:00
Jesse Brandeburg
0deda86836 i40e/i40evf: fix Tx hang workaround code
The arm writeback (arm_wb) code is used for kicking the Tx ring to
make sure any pending work is completed even if interrupts are
disabled. It was running when it didn't need to, and not clearing
the ring->arm_wb state after it was set.  This caused Tx hangs
to still occur occasionally when there really was no hang.
Fix this by resetting the variable right after it was used.

Change-ID: I7bf75d552ba9c4bd203d40615213861a24bb5594
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:21:26 -07:00
Shannon Nelson
17351401fe i40e: fixup padding issue in get_cee_dcb_cfg_v1_resp
The struct i40e_aqc_get_cee_dcb_cfg_v1_resp was originally defined with
word boundary layout issues, which most compilers deal with by silently
adding padding, making the actual struct larger than designed.
This patch adds an extra byte in fields reserved3 and reserved4 to directly
acknowledge that padding.

Because the struct doesn't actually change in size or layout, this doesn't
constitute a change in the API.

Change-ID: I53fa4741b73fa255621232a85fba000b0e223015
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:19:01 -07:00
Greg Rose
d9b68f8aba i40e: Fix a port VLAN configuration bug
If a port VLAN is set for a given virtual function (VF) before the VF
driver is loaded then a configuration error results in which the port
VLAN is ignored when the VF driver is subsequently loaded.  This causes
the VF's MAC/VLAN filters to not use the correct VLAN filter.  This
patch ensures that the port VLAN filter is considered at the right time
during configuration of the VF's MAC/VLAN filters.

Change-ID: I28f404cbc21a4c6d70a7980b87c77f13f06685a4
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:16:36 -07:00
Shannon Nelson
1fa89a4b3b i40e/i40evf: fix up type clash in i40e_aq_rc_to_posix conversion
The error code sent into i40e_aq_rc_to_posix() are signed values, so we
really need to treat them as such.

Change-ID: I3d1ae0ee9ae0b1b6f5fc424f8b8cc58b0ea93203
Reported-by: Helin Zhang <helin.zhang@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:14:12 -07:00
Vasily Averin
4c4935a964 i40e: rtnl_lock called twice in i40e_pci_error_resume()
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:11:47 -07:00
Vasily Averin
f2a1c3680c i40evf: missing rtnl_unlock in i40evf_resume()
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Tested-by: Andrews Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-30 05:09:22 -07:00
Stephane Grosjean
7253054e5d can: peak_pci: add unused device id. in devices table
While new PEAK_PCIE_OEM_ID has been defined since 3.17, no corresponding
entry has been added in the peak_pci_tbl[] of the peak_pci CAN driver.

This patch enables now users of the PCAN-PCI Express OEM card to run the
peak_pci driver too.

Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-09-30 12:57:58 +02:00
Vivien Didelot
ab06900230 net: switchdev: abstract object in add/del ops
Similar to the notifier_call callback of a notifier_block, change the
function signature of switchdev add and del operations to:

    int switchdev_port_obj_add/del(struct net_device *dev,
                                   enum switchdev_obj_id id, void *obj);

This allows the caller to pass a specific switchdev_obj_* structure
instead of the generic switchdev_obj one.

Drivers implementation of these operations and switchdev have been
changed accordingly.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 21:31:59 -07:00
Vivien Didelot
25f07adc47 net: switchdev: pass callback to dump operation
Similar to the notifier_call callback of a notifier_block, change the
function signature of switchdev dump operation to:

    int switchdev_port_obj_dump(struct net_device *dev,
                                enum switchdev_obj_id id, void *obj,
                                int (*cb)(void *obj));

This allows the caller to pass and expect back a specific
switchdev_obj_* structure instead of the generic switchdev_obj one.

Drivers implementation of dump operation can now expect this specific
structure and call the callback with it. Drivers have been changed
accordingly.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 21:31:59 -07:00
Vivien Didelot
03d5fb1862 net: switchdev: remove dev from switchdev_obj cb
The net_device associated to a dump operation does not have to be passed
to the callback. switchdev stores it in a superset struct, if needed.

Also some drivers (such as DSA drivers) may not have easy access to it.

This will simplify pushing the callback function down to the drivers.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 21:31:59 -07:00
Robb Manes
23860f103b net/mlx4: Handle return codes in mlx4_qp_attach_common
Both new_steering_entry() and existing_steering_entry() return values
based on their success or failure, but currently they fall through
silently.  This can make troubleshooting difficult, as we were unable
to tell which one of these two functions returned errors or
specifically what code was returned.  This patch remedies that
situation by passing the return codes to err, which is returned by
mlx4_qp_attach_common() itself.

This also addresses a leak in the call to mlx4_bitmap_free() as well.

Signed-off-by: Robb Manes <rmanes@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 21:14:01 -07:00
Geert Uytterhoeven
6153348f5e net: macmace: Allow modular build
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 21:11:13 -07:00
Geert Uytterhoeven
18785040b0 net: hplance: Allow modular build
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 21:11:13 -07:00
Geert Uytterhoeven
93a82ca2f3 net: 7990: Export lance_poll() to modules
If CONFIG_HPLANCE=m and CONFIG_NET_POLL_CONTROLLER=y:

    ERROR: "lance_poll" [drivers/net/ethernet/amd/hplance.ko] undefined!

Add the missing export to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 21:11:12 -07:00
Geert Uytterhoeven
3a3a7f3b7f net: mac8390: Allow modular build
The modular driver supports only one card, just like the built-in
driver.

Note that this limitation is a problem which affects all Nubus card
drivers, because they have to do all their own bus matching, because
Nubus still lacks the necessary driver model support.

Suggested-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 21:11:12 -07:00
Andrew Lunn
4905287138 dsa: mv88e6xxx: Fix unsigned/signed issue
commit dea870242a ("dsa: mv88e6xxx: Allow speed/duplex of port to be
configured") leads to the following static checker warning:

        drivers/net/dsa/mv88e6xxx.c:585 mv88e6xxx_adjust_link()
        warn: unsigned 'ret' is never less than zero.

drivers/net/dsa/mv88e6xxx.c
   573  void mv88e6xxx_adjust_link(struct dsa_switch *ds, int port,
   574                             struct phy_device *phydev)
   575  {
   576          struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
   577          u32 ret, reg;
   578
   579          if (!phy_is_pseudo_fixed_link(phydev))
   580                  return;
   581
   582          mutex_lock(&ps->smi_mutex);
   583
   584          ret = _mv88e6xxx_reg_read(ds, REG_PORT(port), PORT_PCS_CTRL);
   585          if (ret < 0)

Make ret an int, which is the return type for _mv88e6xxx_reg_read()

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 21:07:42 -07:00
Andrew Lunn
c047a1f918 dsa: mv88e6xxx: Enable forwarding for unknown to the CPU port
Frames destined to an unknown address must be forwarded to the CPU
port. Otherwise incoming ARP, dhcp leases, etc, do not work.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 21:06:51 -07:00
David Ahern
ec539514e5 net: Remove vrf header file
Move remaining structs to VRF driver and delete the vrf header file.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 20:40:33 -07:00
David Ahern
93a7e7e837 net: Remove the now unused vrf_ptr
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 20:40:33 -07:00
David Ahern
ee15ee5d94 net: Add support for l3mdev ops to VRF driver
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 20:40:33 -07:00
David Ahern
007979eaf9 net: Rename IFF_VRF_MASTER to IFF_L3MDEV_MASTER
Rename IFF_VRF_MASTER to IFF_L3MDEV_MASTER and update the name of the
netif_is_vrf and netif_index_is_vrf macros.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 20:40:32 -07:00
Liviu Dudau
0f50c10d26 RESEND: [PATCH v3 net-next] sky2: use random address if EEPROM is bad
On some embedded systems the EEPROM does not contain a valid MAC address.
In that case it is better to fallback to a generated mac address and
let init scripts fix the value later.

Reported-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
[Changed handcoded setup to use eth_hw_addr_random() and to save new address into HW]
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 15:00:04 -07:00
Andrzej Hajda
4c52b1da53 bna: fix error handling
Several functions can return negative value in case of error,
so their return type should be fixed as well as type of variables
to which this value is assigned.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 13:49:53 -07:00
Maxime Ripard
f864288544 net: mvneta: Statically assign queues to CPUs
Since the switch to per-CPU interrupts, we lost the ability to set which
CPU was going to receive our RX interrupt, which was now only the CPU on
which the mvneta_open function was run.

We can now assign our queues to their respective CPUs, and make sure only
this CPU is going to handle our traffic.

This also paves the road to be able to change that at runtime, and later on
to support RSS.

[gregory.clement@free-electrons.com]: hardened the CPU hotplug support.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 11:51:41 -07:00
Maxime Ripard
d893665728 net: mvneta: Allow different queues
The mvneta driver allows to change the default RX queue trough the rxq_def
kernel parameter.

However, the current code doesn't allow to have any value but 0. It is
actively checked for in the driver's probe because the drivers makes a
number of assumption and takes a number of shortcuts in order to just use
that RX queue.

Remove these limitations in order to be able to specify any available
queue.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 11:51:40 -07:00
Maxime Ripard
12bb03b436 net: mvneta: Handle per-cpu interrupts
Now that our interrupt controller is allowing us to use per-CPU interrupts,
actually use it in the mvneta driver.

This involves obviously reworking the driver to have a CPU-local NAPI
structure, and report for incoming packet using that structure.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 11:51:40 -07:00
Maxime Ripard
2502d0ef27 net: mvneta: Fix CPU_MAP registers initialisation
The CPU_MAP register is duplicated for each CPUs at different addresses,
each instance being at a different address.

However, the code so far was using CONFIG_NR_CPUS to initialise the CPU_MAP
registers for each registers, while the SoCs embed at most 4 CPUs.

This is especially an issue with multi_v7_defconfig, where CONFIG_NR_CPUS
is currently set to 16, resulting in writes to registers that are not
CPU_MAP.

Fixes: c5aff18204 ("net: mvneta: driver for Marvell Armada 370/XP network unit")
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.8+
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29 11:51:40 -07:00
Dan Carpenter
1f9c6e1bc1 mwifiex: fix mwifiex_rdeeprom_read()
There were several bugs here.

1)  The done label was in the wrong place so we didn't copy any
    information out when there was no command given.

2)  We were using PAGE_SIZE as the size of the buffer instead of
    "PAGE_SIZE - pos".

3)  snprintf() returns the number of characters that would have been
    printed if there were enough space.  If there was not enough space
    (and we had fixed the memory corruption bug #2) then it would result
    in an information leak when we do simple_read_from_buffer().  I've
    changed it to use scnprintf() instead.

I also removed the initialization at the start of the function, because
I thought it made the code a little more clear.

Fixes: 5e6e3a92b9 ('wireless: mwifiex: initial commit for Marvell mwifiex driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 11:08:50 +03:00
Ondrej Zary
2b8fa9e870 airo: Implement netif_carrier_on/off
Add calls to netif_carrier_on and netif_carrier_off

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 11:07:02 +03:00
Ondrej Zary
4a0f2ea797 airo: fix IW_AUTH_ALG_OPEN_SYSTEM
IW_AUTH_ALG_OPEN_SYSTEM is ambiguous in set_auth for WEP as
wpa_supplicant uses it for both no encryption and WEP open system.
Cache the last mode set (only of these two) and use it here.

This allows wpa_supplicant to work with unencrypted APs.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 11:07:00 +03:00
Hauke Mehrtens
a32be01772 brcmfmac: include linux/atomic.h
brcmfmac uses atomic_or() and other atomic_* functions, but does not
include linux/atomic.h. This file gets included by some other header
file so this normally does not cause problems.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:58:07 +03:00
Hante Meuleman
29b93c0e3c brcmfmac: Accept events when TDLS is used in combination with p2p.
TDLS events are mapped back to primary interface but when p2p is in
use then this fails because the check was incorrect by checking
bsscfg number. Which can be different when a p2p device has been
created.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:56:22 +03:00
Hante Meuleman
cb8dc71f51 brcmfmac: Fix TDLS setup by properly handling p2p noif.
There is a workaround needed for p2p device setup which breaks tdls
functionality. This patch fixes that by properly signalling fweh that
p2p device setup is ongoing.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:56:06 +03:00
Hante Meuleman
55acca90da brcmfmac: Add support for the BCM4365 and BCM4366 PCIE devices.
This patch adds support for the BCM4365 and BCM4366 11ac Wave2
PCIE devices.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:56:05 +03:00
Hante Meuleman
a2044d91d9 brcmfmac: Fix race condition bug when deleting p2p interface.
When p2p device interface gets deleted by deinitialising discovery
it will result in an event which removes the interface, but that is
also done by delete p2p interface code. This results in race
condition which sometimes results in lockup/crash. With this patch
the delete device interface will wait for the event (with timeout)
removing the possible race condition. Also on the stop device call
from cfg80211 the deinitialisation of the discovery device should
be avoided as it can result in a similar situation.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:56:03 +03:00
Hante Meuleman
8268c2011d brcmfmac: Add module parameter to disable features.
For debugging purpose it is very handy to be able to disable
features. It has happened a few times that new features turned
out not always being properly detected for all devices/firmwares.
Making it possible to disable the feature with a module parameter
will make testing/debugging easier.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:56:01 +03:00
Hante Meuleman
35a3cbcc49 brcmfmac: Fix p2p bug for older firmwares.
Some devices with older firmwares are reporting new p2p device
interface with the wrong type. Accept this type to get p2p
working for these devices.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:55:59 +03:00
Hante Meuleman
d1bb34c128 brcmfmac: Only handle p2p_stop_device if vif is valid
In some situations it is possible that vif has been removed while
cfg80211 invokes the p2p_stop_device handler. This will result in
crash.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:55:58 +03:00
Hante Meuleman
9831bcb987 brcmfmac: Deleting of p2p device is leaking memory.
When a p2p device gets deleted, the memory for the vif is not being
released. This is solved by reorganizing the cleanup path and
properly freeing the memory.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:55:57 +03:00
Hante Meuleman
178e9ef9b6 brcmfmac: Workaround in change vif for wpa_supplicant support.
Different wpa_supplicants have different behavior and expectations
regarding the change_virtual_intf behavior. This patch implements
a workaround for the different versions and possible brcmfmac
configuration.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:55:55 +03:00
Hante Meuleman
43e55a2a1c brcmfmac: Make p2pon module param always available.
p2pon module param is currently under define BRCMDBG. Though it is
a needed option for older versions of the wpa_supplicant which do not
support the P2P_DEVICE interface.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:55:54 +03:00
Hante Meuleman
9f64df940c brcmfmac: Fix bug in flowring management.
The hash index stored in the flowrings is of type u16 but gets
stored in u8. This can result in incorrect indexing and possibly
result in crashes. This patch fixes the type.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:55:52 +03:00
Hante Meuleman
ae7c03f68e brcmfmac: Inform p2p module about p2pon through API
When the p2pon module param is used then p2p attach will initialize
p2p device iface in the firmware, but it is doing that by checking
data. It is cleaner to pass the p2pon information to p2p by API.
This information is also needed for other patch.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:55:50 +03:00
Hante Meuleman
6ea696eb4e brcmfmac: Only assign primary netdev to if2bss array.
The if2bss allows for translation of ifidx to bssidx which has a 1:n
relation. Therefor only the first (primary) netdev should be
assigned in this array. This fixes the p2pon=1 module param usage.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:55:48 +03:00
Hante Meuleman
60dc35ef9f brcmfmac: Fix set and get tx-power functions.
Implementation of tx-power (get and set) related functions are
still assuming mW interface. This is wrong as functions use dbm
(or mbm) nowadays. As a result a tx power configuration could
result in wrong power configuration.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:55:47 +03:00
Hante Meuleman
e3c92cb2ee brcmfmac: Add support for the BCM4350 PCIE device.
This patch adds support fo the BRCM4350 2x2 11ac PCIE device.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:55:45 +03:00
Hante Meuleman
2b5d348ee7 brcmfmac: Fix exception handling.
In some exception situations the ifp->vif was not properly assigned
which could result in crash.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:55:44 +03:00
Zhaoyang Liu
735ab6bfc0 mwifiex: complete usb tx data with multi endpoints
This patch do the work to TX data with specific USB
endpoint. At the same time, update data_sent flag
according to multi port status. And is_port_ready
API is added for BSS interface to check if current
used usb data endpoint is available or not.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:49 +03:00
Zhaoyang Liu
7e4e5d2cd0 mwifiex: add usb multi endpoints resync support
This patch add support for usb multi endpoints resync.
Once multi channel event is received from firmware,
update usb_mc_setp flag to block TX data until setup is over.
And available data endpoint will be attached to BSS interface.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:48 +03:00
Zhaoyang Liu
308fe29ef2 mwifiex: add usb tx data multi endpoints support
This patch add support for USB interface to TX data
with different endpoint. And previous TX information
are saved in new designed structure.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:46 +03:00
Zhaoyang Liu
2b0f997db4 mwifiex: add usb multi channel event process support
This patch add multi channel event process for USB multi tx data endpoints.
Driver receives firmware multi channel event only in case that new
connection is setup or interface is disconnect. Different BSS interface
need update used usb endpoint.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:44 +03:00
Zhaoyang Liu
d941444321 mwifiex: move usb specific data_sent update to usb.c
This patch move data_sent flag update to usb.c file.
>From now all data_sent update cases only happened in specific file:
sdio.c, usb.c, pcie.c. Outside ot these files, it is only allowed
to check the value of data_ent.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:43 +03:00
Zhaoyang Liu
d22871db01 mwifiex: fix tx data_sent issue for usb interface
This patch fix missing tx data_sent flag update for usb interface.
Except USB interface, data_sent flag has been updated in specific
file such as sdio.c and pcie.c. So only USB interface type need check
when TX data completed.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:42 +03:00
Amitkumar Karwar
17090beec2 mwifiex: Suppress -ENOSR error for data traffic on USB
We have preallocated buffer pool for Tx data. During high
data traffic, all buffers are submitted to USB and driver needs
to wait until one of the buffers get available for next Tx
packet.

"data: -ENOSR is returned" errors is expected in this case. Let's
lower the priority of this message.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:40 +03:00
Zhaoyang Liu
70c5ad7e20 mwifiex: correct paused tx data packet counter
This patch fixes observed issues while updating counter for
number of paused data packets in wmm queue when trying to
delete packet or delete station entry.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:38 +03:00
Amitkumar Karwar
14d9c11c91 mwifiex: avoid memsetting PCIe event buffer
Preallocated PCIe buffer is being reused for all PCIe interface
events. Physical address of the buffer is shared with firmware
so that it can perform DMA on it. As event length is specified
in the header, there should not be a problem if the buffer gets
overwritten.
We will save some cycles by avoiding memset everytime while
submitting the buffer to firmware.

Fixes: 2728cecdc7d6bf3d21(mwifiex: corrections in PCIe event skb)
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:37 +03:00
Aniket Nagarnaik
17e524b1b6 mwifiex: fix NULL pointer dereference during hidden SSID scan
This NULL pointer dereference is observed during suspend resume
stress test. All pending commands are cancelled when system goes
into suspend state. There a corner case in which host may receive
response for last scan command after this and try to trigger extra
active scan for hidden SSIDs.

The issue is fixed by adding a NULL check to skip that extra scan.

Fixes: 2375fa2b36 (mwifiex: fix unable to connect hidden SSID..)
Cc: <stable@vger.kernel.org> [v4.2+]
Signed-off-by: Aniket Nagarnaik <aniketn@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:36 +03:00
Aniket Nagarnaik
2c3da96126 mwifiex: don't always include ht/vht info in tdls confirm frame
Current TDLS implementation always includes ht/vht information
in tdls setup confirm frame which causes teardown by legacy
peer station after TDLS handshake. We will inclue ht/vht
capabilities in tdls setup confirm frame only if peer station
supports it to fix this problem.

Signed-off-by: Aniket Nagarnaik <aniketn@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:34 +03:00
Xinming Hu
02421dd3f6 mwifiex: NULL check for cfg80211_inform_bss()
cfg80211_inform_bss would return null in some cases, such as
memory allocation failure.

This patch adds sanity check for this case, to avoid possible
issues when above corner case is hit.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:33 +03:00
Xinming Hu
9a9053c342 mwifiex: fix driver init failure under memory pressure
64k Tx and Rx buffers are allocated during driver initialization
for SDIO level data aggregations. When host is under memory
pressure situation, kzalloc() request for 64k may fail.

We will try allocating 32k buffers and disable our rx single port
aggreagation feature in this situation.

If the allocation still fails, we will disable our sdio multport
aggregation feature as well. In this way, we will transmit and
receive packets one by one, thus reduce the demand for big
memory.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:31 +03:00
Xinming Hu
e3ad3d5b6a mwifiex: minor corrections in multiport aggregation code
This patch includes below changes
1) Check if multiport aggregation feature flag while doing rx
length validation check.
2) Reset buffer size variables when buffers are freed.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:30 +03:00
Zhaoyang Liu
0a252abb6a mwifiex: update amsdu tx packet time stamp
This patch fixes the issue of delay time in A-MSDU tx packet.
In generated new A-MSDU packet, the time stamp is initialized to zero.
Choose the time of first MSDU packet as aggregated packet's time.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:28 +03:00
Xinming Hu
65405c51bb mwifiex: fix typo in del_virtual_intf() function
Interface counters should be incremented in add_virtual_intf()
and decremented in del_virtual_intf() function. This patch
corrects it.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:47:27 +03:00
Guodong Xu
32677b2584 wlcore: align reg_ch_conf_last[] to 64bit
Align fields reg_ch_conf_last and reg_ch_conf_pending of
struct wl1271{} to 64bit.

Without this, on 64bit ARM, wlcore_set_pending_regdomain_ch() fails at
the point it calls set_bit(ch_bit_idx, (long*)wl->reg_ch_conf_pending);
Here is the error message while doing iw wlan0 scan or connect:

[   10.666857] wlcore: IRQ work
[   10.670046] wlcore: intr: 0x40 (fw_rx_counter = 1, drv_rx_counter = 0, tx_results_counter = 0)
[   10.678697] wlcore: WL1271_ACX_INTR_DATA
[   10.682810] Unhandled fault: alignment fault (0x96000021) at 0xffffffc037a817f4
[   10.690139] Internal error: : 96000021 [#1] PREEMPT SMP
[   10.695366] Modules linked in:
[   10.698437] CPU: 3 PID: 894 Comm: irq/60-wl18xx Tainted: G        W       4.2.0-rc6-linaro-hikey #2
[   10.707501] Hardware name: HiKey Development Board (DT)
[   10.712733] task: ffffffc03a9d1680 ti: ffffffc039e18000 task.ti: ffffffc039e18000
[   10.720239] PC is at set_bit+0x14/0x30
[   10.724002] LR is at wlcore_set_pending_regdomain_ch+0x40/0x4c

Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:44:27 +03:00
Jan Kaisrlik
862a336c83 ath9k: Add support for OCB mode
The patch adds support for "outside the context of a BSS"(OCB) mode
to ath9k driver and extends debugfs files by OCB ralated information.

This patch was tested on AR9380-AL1A cards.

Signed-off-by: Jan Kaisrlik <kaisrja1@fel.cvut.cz>
Cc: Michal Sojka <sojkam1@fel.cvut.cz>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:39:22 +03:00
Hiroaki KAWAI
c452d944be carl9170: fix bad rssi reading
Fix rssi calculation error which was introduced in otus to ar9170
porting.

Signed-off-by: Hiroaki KAWAI <hiroaki.kawai@gmail.com>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:38:20 +03:00
Geoff Levand
76ea6fdbeb net/wireless/wl18xx: Add missing MODULE_FIRMWARE
Fixes the output of 'modinfo --field firmware'.

Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:35:16 +03:00
Miaoqing Pan
61d36370e2 ath9k: enable hw manual peak calibration for QCA9561
This patch fix https://lists.openwrt.org/pipermail/openwrt-devel/
2015-August/034979.html. As the peak detect calibration is set
incorrectly.

Signed-off-by: Miaoqing Pan <miaoqing@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:34:09 +03:00
Joe Perches
36925e52c5 mwifiex: Make mwifiex_dbg a function, reduce object size
The mwifiex_dbg macro has two tests that could be consolidated
into a function reducing overall object size ~10KB (~4%).

So convert the macro into a function.

$ size drivers/net/wireless/mwifiex/built-in.o* (x86-64 defconfig)
   text	   data	    bss	    dec	    hex	filename
 233102	   8628	   4809	 246539	  3c30b	drivers/net/wireless/mwifiex/built-in.o.new
 243949	   8628	   4809	 257386	  3ed6a	drivers/net/wireless/mwifiex/built-in.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:32:46 +03:00
Hante Meuleman
07fe2e38c7 brcmfmac: Reset PCIE devices after recognition.
When PCIE type devices are being FW reloaded without being properly
reset then the device ends up in a locked state, requiring the
device to be completely powered down. This patch adds a reset
through watchdog at the moment the device (cores) has been
recognized. This will solve warm reboot issues.

Cc: Rafal Milecki <zajec5@gmail.com>
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:31:15 +03:00
Arend van Spriel
95ef12394a brcmfmac: introduce brcmf_net_detach() function
In case of error during brcmf_bus_start() the network interfaces were
freed using free_netdev(). However, the interfaces may have additional
memory allocated which is not freed. The netdev has destructor set to
brcmf_cfg80211_free_netdev() which frees the additional memory if
allocated and call free_netdev(). The brcmf_net_detach() either calls
brcmf_cfg80211_free_netdev() directly or uses unregister_netdev() when
struct net_device::reg_state indicates the netdev was registered.

Reported-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:28:52 +03:00
Arend van Spriel
c67d41ba6f brcmfmac: change prototype for brcmf_fws_hdrpull()
Instead of passing ifidx and drvr just pass struct brcmf_if pointer
which holds both parameters.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:28:50 +03:00
Arend van Spriel
03cca20a6e brcmfmac: remove ifidx parameter from brcmf_fws_txstatus_suppressed()
The brcmf_fws_txstatus_suppressed() function prototype specifies an
ifidx parameter which is not used within the function implementation.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:28:46 +03:00
Arend van Spriel
9d6c1dc4f9 brcmfmac: add dedicated debug level for firmware console logging
Both PCIe and SDIO devices have the possibility to log the firmware
console output in kernel log. For PCIe it is logged when PCIE debug
level is enabled. For SDIO it is logged when user specifies a non-zero
console interval through debugfs. This patch tries to make it a
bit more consistent. The firmware console output is only logged when
FWCON debug level is enabled.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Pontus Fuchs <pontusf@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:28:44 +03:00
Arend van Spriel
291da87b69 brcmfmac: add mapping for interface index to bsscfg index
Because the P2P Device interface in firmware uses the same interface
index as the primary interface we use the bsscfg index as index in the
struct brcmf_pub::iflist. However, in the data path we get the interface
index and not the bsscfg index. So we need a mapping of interface index
to bsscfg index, which can be determined upon handle adding the interface.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:28:43 +03:00
Arend van Spriel
054e68add6 brcmfmac: pass struct brcmf_if instance in brcmf_txfinalize()
Most call sites of brcmf_txfinalize already have struct brcmf_if
instance so pass that to brcmf_txfinalize() as the function
needs it anyway.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:28:41 +03:00
Arend van Spriel
46f3b6ee48 brcmfmac: use brcmf_get_ifp() to map ifidx to struct brcmf_if instance
The knowledge on how to map the interface index to a struct brcmf_if
instance is in brcmf_get_ifp() so use that function when only the
interface index is known instead of accessing brcmf_pub::iflist
directly.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:28:40 +03:00
Arend van Spriel
ddddfed2f9 brcmfmac: correct detection of p2pdev interface event
The p2pdev interface is setup in firmware resulting in a interface
event. This event has role and no-if flag. When role is p2p client
and no-if flag is set it indicates that this is the p2pdev interface.
This info is used in handling the event and adding interface in the
driver.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:28:38 +03:00
Arend van Spriel
1c626cf472 brcmfmac: only call brcmf_cfg80211_detach() when attach was successful
In brcmf_bus_start() the function brcmf_cfg80211_attach() is called which
may fail. If this happens we should not call brcmf_cfg80211_detach() in
the failure path as it will result in NULL pointer dereference:

  brcmf_fweh_activate_events: Set event_msgs error (-5)
  brcmf_bus_start: failed: -5
  brcmf_sdio_firmware_callback: dongle is not responding
  BUG: unable to handle kernel NULL pointer dereference at 0000000000000068
  IP: [<ffffffff811e8f08>] kernfs_find_ns+0x18/0xd0
  PGD 0
  Oops: 0000 [#1] SMP
  Modules linked in: brcmfmac(O) brcmutil(O) cfg80211 auth_rpcgss
  CPU: 1 PID: 45 Comm: kworker/1:1 Tainted: G           O
  Hardware name: Dell Inc. Latitude E6410/07XJP9, BIOS A07 02/15/2011
  Workqueue: events request_firmware_work_func
  task: ffff880036c09ac0 ti: ffff880036dd4000 task.ti: ffff880036dd4000
  RIP: 0010:[<ffffffff811e8f08>]  [<ffffffff811e8f08>] kernfs_find_ns+0x18/0xd0
  RSP: 0018:ffff880036dd7a28  EFLAGS: 00010246
  RAX: ffff880036c09ac0 RBX: 0000000000000000 RCX: 000000007fffffff
  RDX: 0000000000000000 RSI: ffffffff816578b9 RDI: 0000000000000000
  RBP: ffff880036dd7a48 R08: 0000000000000000 R09: ffff880036c0b340
  R10: 00000000000002ec R11: ffff880036dd7b08 R12: ffffffff816578b9
  R13: 0000000000000000 R14: ffffffff816578b9 R15: ffff8800c6c87000
  FS:  0000000000000000(0000) GS:ffff88012bc40000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
  CR2: 0000000000000068 CR3: 0000000001a0b000 CR4: 00000000000006e0
  Stack:
   0000000000000000 ffffffff816578b9 0000000000000000 ffff8800c0d003c8
   ffff880036dd7a78 ffffffff811e8ff5 0000000ffffffff1 ffffffff81a9b060
   ffff8800c789f880 ffff8800c0d00000 ffff880036dd7a98 ffffffff811ebe0d
  Call Trace:
   [<ffffffff811e8ff5>] kernfs_find_and_get_ns+0x35/0x60
   [<ffffffff811ebe0d>] sysfs_unmerge_group+0x1d/0x60
   [<ffffffff81404ef2>] dpm_sysfs_remove+0x22/0x60
   [<ffffffff813f9db9>] device_del+0x49/0x240
   [<ffffffff815da768>] rfkill_unregister+0x58/0xc0
   [<ffffffffa06bd91b>] wiphy_unregister+0xab/0x2f0 [cfg80211]
   [<ffffffffa0742fe3>] brcmf_cfg80211_detach+0x23/0x50 [brcmfmac]
   [<ffffffffa074d986>] brcmf_detach+0x86/0xe0 [brcmfmac]
   [<ffffffffa0757de8>] brcmf_sdio_remove+0x48/0x120 [brcmfmac]
   [<ffffffffa0758ed9>] brcmf_sdiod_remove+0x29/0xd0 [brcmfmac]
   [<ffffffffa0759031>] brcmf_ops_sdio_remove+0xb1/0x110 [brcmfmac]
   [<ffffffffa001c267>] sdio_bus_remove+0x37/0x100 [mmc_core]
   [<ffffffff813fe026>] __device_release_driver+0x96/0x130
   [<ffffffff813fe0e3>] device_release_driver+0x23/0x30
   [<ffffffffa0754bc8>] brcmf_sdio_firmware_callback+0x2a8/0x5d0 [brcmfmac]
   [<ffffffffa074deaf>] brcmf_fw_request_nvram_done+0x15f/0x5e0 [brcmfmac]
   [<ffffffff8140142f>] ? devres_add+0x3f/0x50
   [<ffffffff810642b5>] ? usermodehelper_read_unlock+0x15/0x20
   [<ffffffff81400000>] ? platform_match+0x70/0xa0
   [<ffffffff8140f400>] request_firmware_work_func+0x30/0x60
   [<ffffffff8106828c>] process_one_work+0x14c/0x3d0
   [<ffffffff8106862a>] worker_thread+0x11a/0x450
   [<ffffffff81068510>] ? process_one_work+0x3d0/0x3d0
   [<ffffffff8106d692>] kthread+0xd2/0xf0
   [<ffffffff8106d5c0>] ? kthread_create_on_node+0x180/0x180
   [<ffffffff815ed35f>] ret_from_fork+0x3f/0x70
   [<ffffffff8106d5c0>] ? kthread_create_on_node+0x180/0x180
  Code: e9 40 fe ff ff 48 89 d8 eb 87 66 0f 1f 84 00 00 00 00 00 66 66 66 66
	90 55 48 89 e5 41 56 49 89 f6 41 55 49 89 d5 31 d2 41 54 53 <0f> b7
	47 68 48 8b 5f 48 66 c1 e8 05 83 e0 01 4d 85 ed 0f b6 c8
  RIP  [<ffffffff811e8f08>] kernfs_find_ns+0x18/0xd0
   RSP <ffff880036dd7a28>
  CR2: 0000000000000068
  ---[ end trace 87d6ec0d3fe46740 ]---

Reported-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:28:37 +03:00
Arend van Spriel
ee6e3a3414 brcmfmac: change parameters for brcmf_remove_interface()
Just pass the interface to be removed, ie. the struct brcmf_if instance.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:28:32 +03:00
Arend van Spriel
796cfb65e3 brcmfmac: make brcmf_proto_hdrpull() return struct brcmf_if instance
Avoid spreading the ifidx in the driver, but have it return the
struct brcmf_if instance.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:28:30 +03:00
Arend van Spriel
75effb03ee brcmfmac: consolidate ifp lookup in driver core
In rx path the firmware provide an interface index which is used to
map to a struct brcmf_if instance. However, this involves some trick
that is done in two places. This is changed by having driver core
providing brcmf_get_ifp() function.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29 10:28:27 +03:00
Hariprasad Shenai
5e2a5ebc3f cxgb4: Add HW timesptamp support for RX
Adds support for ethtool get time stamp ioctl, which is used by
tcpdump to get the supported time stamp types

eg: tcpdump -i eth5 -J
Time stamp types for eth5 (use option -j to set):
  host (Host)
  adapter_unsynced (Adapter, not synced with system time)

Adds support for adapter unsynced mode, by adding SIOCSHWTSTAMP support
in driver.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-28 22:35:29 -07:00
huangdaode
e4600d69ff net: Fix Hisilicon Network Subsystem Support Compilation
This patch fixes the compilation error with arm allmodconfig, this error
generated due to unavailability of readq() on 32-bit platform which was
found during net-next daily compilation. In the same time, fix all the
hns drivers compilation warnings.

Signed-off-by: huangdaode <huangdaode@hisilicon.com>
Signed-off-by: zhaungyuzeng <Yisen.zhuang@huawei.com>
Signed-off-by: kenneth Lee <liguozhu@hisilicon.com>
Signed-off-by: yankejian <yankejian@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-28 22:34:23 -07:00
Robert Jarzmik
1273bc573a net: irda: pxaficp_ir: dmaengine conversion
Convert pxaficp_ir to dmaengine. As pxa architecture is shifting from
raw DMA registers access to pxa_dma dmaengine driver, convert this
driver to dmaengine.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Tested-by: Petr Cvek <petr.cvek@tul.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-28 22:32:48 -07:00
Robert Jarzmik
89fa57244a net: irda: pxaficp_ir: convert to readl and writel
Convert the pxa IRDA driver to readl and writel primitives, and remove
another set of direct registers access. This leaves only the DMA
registers access, which will be dealt with dmaengine conversion.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Tested-by: Petr Cvek <petr.cvek@tul.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-28 22:32:48 -07:00
Robert Jarzmik
be01891e46 net: irda: pxaficp_ir: use sched_clock() for time management
Instead of using directly the OS timer through direct register access,
use the standard sched_clock(), which will end up in OSCR reading
anyway.

This is a first step for direct access register removal and machine
specific code removal from this driver.

This commit changes the behavior, as previously the minimum turnaround
time was counted in 76ns steps, while with this patch it is counted in
microsecond steps. The strictly equal formula would have been :
	    while ((sched_clock() - si->last_clk) * 76 < mtt)

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-28 22:32:48 -07:00
Fabio Estevam
5b40f709a1 net: fec: Remove unneeded FEATURES_NEED_QUIESCE definition
There is no need to have FEATURES_NEED_QUIESCE defined as we
can simply use NETIF_F_RXCSUM instead as done in other parts
of the driver.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-28 22:31:12 -07:00
Woojung.Huh@microchip.com
49d28b5642 lan78xx: Return 0 when lan78xx_suspend() has no error.
lan78xx_suspend() may return non-zero from lan78xx_write_reg() in some scenario.
Fix to return 0 when lan78xx_suspend() has no error.

Signed-off-by: Woojung Huh <woojung.huh@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-28 22:28:53 -07:00