Commit Graph

1471 Commits

Author SHA1 Message Date
Andrew Lunn
a5597008db phy: fixed_phy: Add gpio to determine link up/down.
An SFP module may have a link up/down status pin which can be
connection to a GPIO line of the host. Add support for reading such an
GPIO in the fixed_phy driver.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-31 14:48:02 -07:00
David S. Miller
0d36938bb8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-08-27 21:45:31 -07:00
Yuval Mintz
9c9a6524b5 bnx2x: Add new device ids under the Qlogic vendor
This adds support for 3 new PCI device combinations -
1077:16a1, 1077:16a4 and 1077:16ad.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-27 15:31:16 -07:00
Rafał Miłecki
538e456319 bgmac: support up to 3 cores (devices) on a bus
Broadcom buses may have more than 1 Ethernet device. This is used e.g.
to have few interfaces connected to different switch ports. So far we
saw chipsets with only 2 devices (e.g. BCM4706) but recent ones have
up to 3 (e.g. Netgear R8000 uses 3rd interface for most of switch
traffic, lower interfaces are for some kind of offloading).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-27 11:28:40 -07:00
Jaedon Shin
b6df7d61c8 net: bcmgenet: fix uncleaned dma flags
Clean the dma flags of multiq ring buffer int the interface stop
process. This patch fixes that the genet is not running while the
interface is re-enabled.

$ ifup eth0 - running after booting
$ ifdown eth0
$ ifup eth0 - not running and occur tx_timeout

The bcmgenet_dma_disable() in bcmgenet_open() do clean ring16 dma flag
only. If the genet has multiq, the dma register is not cleaned. and
bcmgenet_init_dma() is not done correctly. in case
GENET_V2(tx_queues=4), tdma_ctrl has 0x1e after running
bcmgenet_dma_disable().

Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-23 23:00:41 -07:00
Florian Fainelli
eed635699a net: bcmgenet: Avoid sleeping in bcmgenet_timeout
bcmgenet_timeout() executes in atomic context, yet we will invoke
napi_disable() which does sleep. Looking back at the changes, disabling
TX napi and re-enabling it is completely useless, since we reclaim all
TX buffers and re-enable interrupts, and wake up the TX queues.

Fixes: 13ea657806 ("net: bcmgenet: improve TX timeout")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-23 22:59:33 -07:00
Yuval Mintz
0f8f27de19 bnx2x: Fix vxlan endianity issue
Commit f34fa14cc0 ("bnx2x: Add vxlan RSS support") has introduced an
endianity issue when passing the vxlan UDP port to the HW.

Reported-by: <fengguang.wu@intel.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:08:08 -07:00
Rajesh Borundia
f34fa14cc0 bnx2x: Add vxlan RSS support
Latest FW submission added some vxlan offload capabilities to our device.
This patch adds the ability to connect to the vxlan NDOs and configure
the UDP port associated with it in the HW.

The device would now be capable of performing RSS according to the
inner headers of the vxlan packets.

Signed-off-by: Rajesh Borundia <Rajesh.Borundia@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-18 14:21:10 -07:00
Yuval Mintz
da3cc2da7c bnx2: Fix bandwidth allocation for some MF modes
Management firmware tells driver in case bandwidth configuration for
a specific function exists, but [regretably] the same field has different
meanings depending on the multi-function mode - it can either be
a percentile value or an actual speed.

For newer multi-function modes current logic is incorrect -
driver understands values as actual speeds instead of percentages,
causing the resulting chip configuration to be incorrect.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-17 10:27:57 -07:00
David S. Miller
182ad468e7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/cavium/Kconfig

The cavium conflict was overlapping dependency
changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-13 16:23:11 -07:00
Yuval Mintz
0ea853dfa9 bnx2x: Free NVRAM lock at end of each page
Writing each 4Kb page into flash might take up-to ~100 miliseconds,
during which time management firmware cannot acces the nvram for its
own uses.

Firmware upgrade utility use the ethtool API to burn new flash images
for the device via the ethtool API, doing so by writing several page-worth
of data on each command. Such action might create problems for the
management firmware, as the nvram might not be accessible for a long time.

This patch changes the write implementation, releasing the nvram lock on
the completion of each page, allowing the management firmware time to
claim it and perform its own required actions.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10 14:31:59 -07:00
Yuval Mintz
e1615903eb bnx2x: Prevent null pointer dereference on SKB release
On error flows its possible to free an SKB even if it was not allocated.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10 14:31:58 -07:00
Yuval Mintz
97ac4ef78e bnx2x: Add BD support for storage
Commit 230d00eb4b ("bnx2x: new Multi-function mode - BD") adds support
for the new mode in bnx2x. This expands this support by implementing
APIs required by our storage drivers to support that mode.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-06 21:54:13 -07:00
Adheer Chandravanshi
9b8d504402 cnic: Add the interfaces to get FC-NPIV table.
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-06 21:54:12 -07:00
Tej Parkash
eddb755428 cnic: Populate upper layer driver state in MFW
Signed-off-by: Tej Parkash <tej.parkash@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-06 21:54:12 -07:00
Yuval Mintz
c46309c7f8 bnx2x: Correct logic for pvid configuration.
Commit 05cc5a39dd ("bnx2x: add vlan filtering offload") has introduced
an incorrect logic for checking whether pvid should be configured for
a vf, causing the hypervisor driver to send unneeded ramrods for all of
the vfs each time a pvid has changed.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-02 17:18:24 -07:00
Florian Fainelli
6cec4f5e00 net: systemport: Add netconsole support
Implement a poll controller for netconsole which invokes the RX
interrupt handler to poll for incoming packets, and cleans up all TX
queues by invoking the TX interrupt handler.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-31 15:45:37 -07:00
Florian Fainelli
4d2e88828f net: bcmgenet: Add netconsole support
Implement a poll controller for netconsole which invokes both of our
interrupt handlers for the different RX/TX queues.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-31 15:45:36 -07:00
Yuval Mintz
ce7fa78ce1 bnx2x: Fix compilation when CONFIG_BNX2X_SRIOV is not set
Commit 05cc5a39dd ("bnx2x: add vlan filtering offload") has broken
compilation when CONFIG_BNX2X_SRIOV is not set.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-30 09:52:18 -07:00
Yuval Mintz
05cc5a39dd bnx2x: add vlan filtering offload
Current driver always uses vlan-promisc mode, i.e., it receives both
tagged and untagged traffic and lets the network stack drop packets
tagged with unrequested vlan tags.

This patch implements vlan-filtering offload in the driver -
Unless explicitly configured to promisc mode, only untagged packets or
packets tagged with requested vlans would reach the Rx flow.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:24:45 -07:00
Florian Fainelli
6ac9de5f65 net: bcmgenet: Register link_update callback for all MoCA PHYs
Commit 8d88c6ebb3 ("net: bcmgenet: enable MoCA link state change
detection") added a fixed PHY link_update callback for MoCA PHYs when
registered using platform_data exclusively, this change is also
applicable to systems using Device Tree as their primary configuration
interface.

In order for this to work, move the link_update assignment into
bcmgenet_moca_phy_setup() where we know for sure that we are running on
a MoCA GENET instance, and do not override phydev->link since this is:

- properly taken care of by the PHY library by getting the link UP/DOWN
  interrupts
- this now runs everytime we call bcmgenet_open(), so we need to
  preserve whatever we detected before we went administratively DOWN and
  then UP
- we need to make sure that MoCA PHYs start with a link DOWN during
  probe in order to force a link transition to occur

To avoid a forward declaration, move bcmgenet_fixed_phy_link_update()
above its caller.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-26 20:53:56 -07:00
Florian Fainelli
7d5d3075b5 net: bcmgenet: Remove checks on clock handles
Instead of multiplying the number of checks for IS_ERR(priv->clk),
simply NULLify the 'struct clk' pointer which is something the Linux
common clock framework perfectly deals with and does early return for
each and every single clk_* API functions.

Having every single function check for !IS_ERR(priv->clk) is both
redundant and error prone, as it turns out, we were doing it for the
main GENET clock: priv->clk, but not for the Wake-on-LAN or EEE clock,
so let's just be consistent here.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-26 17:21:56 -07:00
David S. Miller
c5e40ee287 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	net/bridge/br_mdb.c

br_mdb.c conflict was a function call being removed to fix a bug in
'net' but whose signature was changed in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-23 00:41:16 -07:00
Yuval Mintz
3a375e3caf bnx2x: Bump up driver version to 1.712.30
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 10:47:27 -07:00
Yuval Mintz
c48f350ff5 bnx2x: Add MFW dump support
Devices with up-to-date management FW will be able to store register dumps
on their persistent storage - in case management FW identifies a fatal
error it would gather and store such dumps, which could later be retrieved
using specific debug tools.

This patch adds the necessary part in the driver in order to make the
feature operational, as well as update users [under debug] during load
in case their device contains a dump of a previous crash.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 10:47:27 -07:00
Yuval Mintz
230d00eb4b bnx2x: new Multi-function mode - BD
This adds support to a new multi-function mode, enabling driver to
initialize such devices and correctly interacting with management FW
for fully utilizing their features.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 10:47:26 -07:00
Yaniv Rosner
924c6216f8 bnx2x: Add 84858 phy support
This adds support to a new copper phy.

Signed-off-by: Yaniv Rosner <Yaniv.Rosner@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 10:47:26 -07:00
Yuval Mintz
4ad79e1301 bnx2x: Rebrand from 'broadcom' into 'qlogic'
bnx2x still appears as a Broadcom driver even though the devices it
utilizes belong to Qlogic for more than a year.

This patch changes the various headers and the device strings to indicate
the correct ownership of the device.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 10:47:26 -07:00
Yuval Mintz
28311f8e7c bnx2x: Utilize FW 7.12.30
This moves bnx2x into using 7.12.30 FW. Said firmware fixes the following:

 - Packets from a VF with pvid configured which were sent with a
   different vlan were transmitted instead of being discarded.

 - FCoE traffic might not recover after a failue while there's traffic
   to another function.

In addition, this FW opens the door for the driver to implement several
new features; Specifically, this enhances the device's support for
encapsulated packets and will allow vxlan/geneve offloads to be added in
the future, as well as vlan filtering offload.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 10:47:26 -07:00
David S. Miller
f3120acc78 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-07-17

This series contains updates to igb, ixgbe, ixgbevf, i40e, bnx2x,
freescale, siena and dp83640.

Jacob provides several patches to clarify the intended way to implement
both SIOCSHWTSTAMP and ethtool's get_ts_info().  It is okay to support
the specific filters in SIOCSHWTSTAMP by upscaling them to the generic
filters.

Alex Duyck provides a igb patch to pull the time stamp from the fragment
before it gets added to the skb, to avoid a possible issue in which the
fragment can possibly be less than IGB_RX_HDR_LEN due to the time stamp
being pulled after the copybreak check.  Also provides a ixgbevf patch to
fold the ixgbevf_pull_tail() call into ixgbevf_add_rx_frag(), which gives
the advantage that the fragment does not have to be modified after it is
added to the skb.

Fan provides patches for ixgbe/ixgbevf to set the receive hash type
based on receive descriptor RSS type.

Todd provides a fix for igb where on check for link on any media other
than copper was not being detected since it was looking on the incorrect
PHY page (due to the page being used gets switched before the function
to check link gets executed).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20 20:50:19 -07:00
Florian Fainelli
28b45910cc net: bcmgenet: Remove init parameter from bcmgenet_mii_config
Now that we have reworked the way we perform the PHY initialization, we
no longer need to differentiate between init time vs. non-init time
calls, just use a dev_info_once() print to print the PHY type.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20 20:48:14 -07:00
Florian Fainelli
6cc8e6d4dc net: bcmgenet: Delay PHY initialization to bcmgenet_open()
We are currently doing a full PHY initialization and even starting the
pHY state machine during bcmgenet_mii_init() which is executed in the
driver's probe function. This is convenient to determine whether we can
attach to a proper PHY device but comes at the expense of spending up to
10ms per MDIO transactions (to reach the waitqueue timeout), which slows
things down.

This also creates a sitaution where we end-up attaching twice to the
PHY, which is not quite correct either.

Fix this by moving bcmgenet_mii_probe() into bcmgenet_open() and update
its error path accordingly.

Avoid printing the message "attached PHY at address 1 [...]" every time
we bring up/down the interface and remove this print since it duplicates
what the PHY driver already does for us.

Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20 20:48:14 -07:00
Florian Fainelli
c624f89121 net: bcmgenet: Determine PHY type before scanning MDIO bus
Our internal GPHY might be powered off before we attempt scanning the
MDIO bus and bind a driver to it. The way we are currently determining
whether a PHY is internal or not is done *after* we have successfully
matched its driver. If the PHY is powered down, it will not respond to
the MDIO bus, so we will not be able to bind a driver to it.

Our Device Tree for GENET interfaces specifies a "phy-mode" value:
"internal" which tells if this internal uses an internal PHY or not.

If of_get_phy_mode() fails to parse the 'phy-mode' property, do an
additional manual lookup, and if we find "internal" set the
corresponding internal variable accordingly.

Replace all uses of phy_is_internal() with a check against
priv->internal_phy to avoid having to rely on whether or not
priv->phydev is set correctly.

Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20 20:48:14 -07:00
Florian Fainelli
bd4060a610 net: bcmgenet: Power on integrated GPHY in bcmgenet_power_up()
We are currently disabling the GPHY interface during bcmgenet_close(),
and attempting to power it back on during bcmgenet_open(). This works
fine for the first time, because we called bcmgenet_mii_config() which
took care of enabling the interface, however, bcmgenet_power_up() really
needs to power on the GPHY for correctness.

This will be particularly important as we want to move
bcmgenet_mii_probe() down to bcmgenet_open() to avoid seeing the "PHY
already attached" message.

Fixes: a642c4f790 ("net: bcmgenet: power up and down integrated GPHY when unused")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20 20:48:14 -07:00
Florian Fainelli
978ffac418 net: bcmgenet: Use correct dev_id for free_irq
bcmgenet_open()'s error path call free_irq() with a dev_id argument
different from the one we used to call request_irq() with, this will
make us trip over the warning in kernel/irq/manage.c:__free_irq()

Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20 20:48:14 -07:00
Florian Fainelli
6ac3ce8295 net: bcmgenet: Remove excessive PHY reset
We are currently issuing multiple PHY resets during a suspend/resume,
first during bcmgenet_power_up() which does a hardware reset, then a
software reset by calling bcmgenet_mii_reset(). This is both unnecessary
and can take as long as 10ms per MDIO transactions while we re-apply
workarounds because we do not yet have MDIO interrupts enabled.

phy_resume() takes care of re-apply our workarounds in case we need any,
and bcmgenet_power_up() does a PHY hardware reset, all of this is more
than enough to guarantee that the PHY operates correctly.

Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20 20:48:14 -07:00
Linus Torvalds
8bff839927 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
 "Another round of MIPS fixes for 4.2.

  Things are looking quite decent at this stage but the recent work on
  the FPU support took its toll:

   - fix an incorrect overly restrictive ifdef

   - select O32 64-bit FP support for O32 binary compatibility

   - remove workarounds for Sibyte SB1250 Pass1 parts.  There are rare
     fixing the workarounds is not worth the effort.

   - patch up an outdated and now incorrect comment"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: fpu.h: Allow 64-bit FPU on a 64-bit MIPS R6 CPU
  MIPS: SB1: Remove support for Pass 1 parts.
  MIPS: Require O32 FP64 support for MIPS64 with O32 compat
  MIPS: asm-offset.c: Patch up various comments refering to the old filename.
2015-07-19 14:12:22 -07:00
Jacob Keller
dd3950c6d7 bnx2x: only report most generic filters in get_ts_info
CC: Ariel Elior <ariel.elior@qlogic.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-07-17 19:59:05 -07:00
Ralf Baechle
dd0bc75ee3 MIPS: SB1: Remove support for Pass 1 parts.
Pass 1 parts had a number of significant erratas and were only available
in small numbers and under NDA.  Full support also required the use of a
special toolchain that kept branches properly aligned.  These workarounds
were never upstreamed and the only toolchain known to have them is
Montavista's GCC 3.0-based toolchain which completly obsoleted if not
useless these days.

So now that automated testing has tripped over the user of the
-msb1-pass1-workarounds option, rather than fixing it remove support for
pass 1 parts.

Probably nobody will notice.  I seem to own the last know pass 1 board
and I haven't noticed another one in the wild in the past decade, at
least.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-07-14 21:47:34 +02:00
Petri Gynther
c590032f9a net: bcmgenet: fix accounting of packet drops vs errors
bcmgenet driver needs to separate packet drops from packet errors.

When the driver has to drop a *good* packet, due to lack of buffers or
replacement skbs, increment only dev->stats.[rx|tx]_dropped.

When the driver encounters a bad Rx packet or Tx error, increment only
dev->stats.[rx|tx]_errors + relevant detailed error counter.

Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-11 21:16:08 -07:00
Vaishali Thakkar
adb3505086 net: systemport: Use eth_hw_addr_random
Use eth_hw_addr_random() instead of calling random_ether_addr().
Here, this change is setting addr_assign_type to NET_ADDR_RANDOM.

The Coccinelle semantic patch that performs this transformation
is as follows:

@@
identifier a,b;
@@

-random_ether_addr(a->b);
+eth_hw_addr_random(a);

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-09 14:51:15 -07:00
Florian Fainelli
7b635da868 net: bcmgenet: workaround initial read failures for integrated PHYs
All BCM7xxx integrated Gigabit PHYs have an issue in their MDIO
management controller which will make the initial read or write to them
to fail and return 0xffff. This is a real issue as the typical first
thing we do is read from MII_PHYSID1 and MII_PHYSID2 from get_phy_id()
to register a driver for these PHYs.

Coupled with the workaround in drivers/net/phy/bcm7xxx.c, this
workaround for the MDIO bus controller consists in scanning the list of
PHYs to do this initial read workaround for as part of the MDIO bus
reset routine which is invoked prior to mdiobus_scan().

Once we have a proper PHY driver/device registered, all workarounds are
located there (e.g: power management suspend/resume calls).

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-28 20:28:20 -07:00
Michal Schmidt
8031612d7f bnx2x: fix DMA API usage
With CONFIG_DMA_API_DEBUG=y bnx2x triggers the error "DMA-API: device
driver frees DMA memory with wrong function".
On archs where PAGE_SIZE > SGE_PAGE_SIZE it also triggers "DMA-API:
device driver frees DMA memory with different size".

Fix this by making the mapping and unmapping symmetric:
 - Do not map the whole pool page at once. Instead map the
   SGE_PAGE_SIZE-sized pieces individually, so they can be unmapped in
   the same manner.
 - What's mapped using dma_map_page() must be unmapped using
   dma_unmap_page().

Tested on ppc64.

Fixes: 4cace675d6 ("bnx2x: Alloc 4k fragment for each rx ring buffer element")
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-28 20:25:01 -07:00
Eric Dumazet
d53c66a5b8 bnx2x: fix lockdep splat
Michel reported following lockdep splat

[   44.718117] INFO: trying to register non-static key.
[   44.723081] the code is fine but needs lockdep annotation.
[   44.728559] turning off the locking correctness validator.
[   44.734036] CPU: 8 PID: 5483 Comm: ethtool Not tainted 4.1.0
[   44.770289] Call Trace:
[   44.772741]  [<ffffffff816eb1cd>] dump_stack+0x4c/0x65
[   44.777879]  [<ffffffff8111d921>] ? console_unlock+0x1f1/0x510
[   44.783708]  [<ffffffff811121f5>] __lock_acquire+0x1d05/0x1f10
[   44.789538]  [<ffffffff8111370a>] ? mark_held_locks+0x6a/0x90
[   44.795276]  [<ffffffff81113835>] ? trace_hardirqs_on_caller+0x105/0x1d0
[   44.801967]  [<ffffffff8111390d>] ? trace_hardirqs_on+0xd/0x10
[   44.807793]  [<ffffffff811330fa>] ? hrtimer_try_to_cancel+0x4a/0x250
[   44.814142]  [<ffffffff81112ba6>] lock_acquire+0xb6/0x290
[   44.819537]  [<ffffffff810d6675>] ? flush_work+0x5/0x280
[   44.824844]  [<ffffffff810d66ad>] flush_work+0x3d/0x280
[   44.830061]  [<ffffffff810d6675>] ? flush_work+0x5/0x280
[   44.835366]  [<ffffffff816f3c43>] ? schedule_hrtimeout_range+0x13/0x20
[   44.841889]  [<ffffffff8112ec9b>] ? usleep_range+0x4b/0x50
[   44.847365]  [<ffffffff8111370a>] ? mark_held_locks+0x6a/0x90
[   44.853102]  [<ffffffff810d8585>] ? __cancel_work_timer+0x105/0x1c0
[   44.859359]  [<ffffffff81113835>] ? trace_hardirqs_on_caller+0x105/0x1d0
[   44.866045]  [<ffffffff810d851f>] __cancel_work_timer+0x9f/0x1c0
[   44.872048]  [<ffffffffa0010982>] ? bnx2x_func_stop+0x42/0x90 [bnx2x]
[   44.878481]  [<ffffffff810d8670>] cancel_work_sync+0x10/0x20
[   44.884134]  [<ffffffffa00259e5>] bnx2x_chip_cleanup+0x245/0x730 [bnx2x]
[   44.890829]  [<ffffffff8110ce02>] ? up+0x32/0x50
[   44.895439]  [<ffffffff811306b5>] ? del_timer_sync+0x5/0xd0
[   44.901005]  [<ffffffffa005596d>] bnx2x_nic_unload+0x20d/0x8e0 [bnx2x]
[   44.907527]  [<ffffffff811f1aef>] ? might_fault+0x5f/0xb0
[   44.912921]  [<ffffffffa005851c>] bnx2x_reload_if_running+0x2c/0x50 [bnx2x]
[   44.919879]  [<ffffffffa005a3c5>] bnx2x_set_ringparam+0x2b5/0x460 [bnx2x]
[   44.926664]  [<ffffffff815d498b>] dev_ethtool+0x55b/0x1c40
[   44.932148]  [<ffffffff815dfdc7>] ? rtnl_lock+0x17/0x20
[   44.937364]  [<ffffffff815e7f8b>] dev_ioctl+0x17b/0x630
[   44.942582]  [<ffffffff815abf8d>] sock_do_ioctl+0x5d/0x70
[   44.947972]  [<ffffffff815ac013>] sock_ioctl+0x73/0x280
[   44.953192]  [<ffffffff8124c1c8>] do_vfs_ioctl+0x88/0x5b0
[   44.958587]  [<ffffffff8110d0b3>] ? up_read+0x23/0x40
[   44.963631]  [<ffffffff812584cc>] ? __fget_light+0x6c/0xa0
[   44.969105]  [<ffffffff8124c781>] SyS_ioctl+0x91/0xb0
[   44.974149]  [<ffffffff816f4dd7>] system_call_fastpath+0x12/0x6f

As bnx2x_init_ptp() is only called if bp->flags contains PTP_SUPPORTED,
we also need to guard bnx2x_stop_ptp() with same condition, otherwise
ptp_task workqueue is not initialized and kernel barfs on
cancel_work_sync()

Fixes: eeed018cbf ("bnx2x: Add timestamping and PTP hardware clock support")
Reported-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Michal Kalderon <Michal.Kalderon@qlogic.com>
Cc: Ariel Elior <Ariel.Elior@qlogic.com>
Cc: Yuval Mintz <Yuval.Mintz@qlogic.com>
Cc: David Decotigny <decot@google.com>
Acked-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-28 17:03:27 -07:00
Yuval Mintz
592b9b8d68 bnx2x: Fix linearization for encapsulated packets
Due to FW constraints, driver must make sure that transmitted SKBs will
not be too fragmented, or in the case that they are - that each 'window'
of fragments passed to the FW would contain at least an mss worth of data.

For encapsultaed packets the calculation is wrong, since it ignores the
inner headers in the calculation of the headers' length.
This could lead to a FW assertion in case of a too-fragmented encapsulated
packet.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-25 06:30:38 -07:00
Yuval Mintz
efd38b8f52 bnx2x: Release nvram lock on error flow
During an error flow when trying to access the nvram the driver doesn't
release the hw lock it acquired.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-25 06:30:38 -07:00
Ariel Elior
dc6a20aa3b bnx2x: Fix statistics gathering on link change
Since driver statistics flow access MACs and those might reset during
link re-configurations, when we're about to change link properties we
have to make sure that statistics are not operational.
Statisics would be re-enabled [i.e., gathering of statistics would
re-commence] once physical link is achieved again.

Since driver employs a link-flap avoidance scheme, there are scenarios
where driver will receive no indication that the new link is up, and
as a result the statistics would not be re-enabled.

Preventing LFA from working in such cases would guarantee that we'll
always receive such indications and thus will fix statistics gathering.

Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-25 06:30:37 -07:00
Yuval Mintz
2f43b821b5 bnx2x: Fix self-test for 20g devices
20g-capable devices are not configured properly for self-test, using
10g as their speed which cause the link indication to remain down and
fail the internal loopback test.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-25 06:30:35 -07:00
Shahed Shaikh
bb9e9c1d20 bnx2x: Fix VF MAC removal
There's a bug in today's driver where VF requests to add/remove MAC filters
always reach the Hypervisor as add requests.
This prevents the VF from changing its MAC address, as it cannot remove the
previously configured MAC and runs out of MAC credits.

Signed-off-by: Shahed Shaikh <Shahed.Shaikh@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-25 06:30:35 -07:00
Manish Chopra
ad6afbe957 bnx2x: Don't notify about scratchpad parities
The scratchpad is a shared block between all functions of a given device.
Due to HW limitations, we can't properly close its parity notifications
to all functions on legal flows.
E.g., it's possible that while taking a register dump from one function
a parity error would be triggered on other functions.

Today driver doesn't consider this parity as a 'real' parity unless its
being accompanied by additional indications [which would happen in a real
parity scenario]; But it does print notifications for such events in the
system logs.

This eliminates such prints - in case of real parities driver would have
additional indications; But if this is the only signal user will not even
see a parity being logged in the system.

Signed-off-by: Manish Chopra <Manish.Chopra@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-25 06:30:34 -07:00