With addition of dummy clk_*() calls for non CONFIG_HAVE_CLK cases in
clk.h, there is no need to have clk code enclosed in #ifdef
CONFIG_HAVE_CLK, #endif macros.

This also fixes error paths of probe(), as a goto is required in this
patch.
Signed-off-by: NViresh Kumar <viresh.kumar@st.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Acked-by: NDavid S. Miller <davem@davemloft.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: viresh kumar <viresh.linux@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

pch_gbe_xmit_frame skb->len verification was incorrect in vlan case
causing bogus transfer length errors.  One correction could be:
    offset = skb->protocol == htons(ETH_P_8021Q) ? 0 : 4;
    if (unlikely(skb->len > (adapter->hw.mac.max_frame_size - offset)))
However, this verification is not necessary, so remove it.
Signed-off-by: NAndy Cress <andy.cress@us.kontron.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This adds extra cleaning to the pch_gbe_clean_tx routine to avoid
transmit timeouts on some BCM PHYs that have different timing.
Also update the DRV_VERSION to 1.01, and show it.
Signed-off-by: NAndy Cress <andy.cress@us.kontron.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

An extended ping test with 6 vlans resulted in a driver oops with a
netdev transmit timeout.
Fix WATCHDOG_TIMEOUT to be more like e1000e at 5 * HZ, to avoid
unnecessary transmit timeouts.
Signed-off-by: NAndy Cress <andy.cress@us.kontron.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch resolves a "BUG: unable to handle kernel paging request at ..."
oops while dumping packet data. The issue occurs with IOMMU enabled due to
the address provided by phys_to_virt().

This patch makes use of skb->data on Tx and the virtual address of the pages
allocated for Rx.
Signed-off-by: NEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Wrong pointer variable is being used to parse the rss hash from
receive completions leading to corrupted rss_hash values filled into skb.
Signed-off-by: NSarveshwar Bandi <sarveshwar.bandi@emulex.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

RFS filter id can't have the special value RPS_NO_FILTER,
need to skip it when allocating id's.

CC: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: NAmir Vadai <amirv@mellanox.com>
Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When attempting to disable ethernet autonegation via ethtool,
the pch_gpe driver will set software reset bit of PHY chip, But
control register of PHY chip of FRI2 will reenable ethernet autonegation.
Signed-off-by: NWei Yang <w90p710@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The "WIZnet devices" config option should depend on HAS_IOMEM as
all wiznet drivers require it as well.
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We are seeing an oops in be_get_fw_log_level on ppc64 where we walk
off the end of memory.

commit 941a77d5 (be2net: Fix to allow get/set of debug levels in
the firmware.) requires byteswapping of num_modes and num_modules.

Cc: stable@vger.kernel.org # 3.5+
Signed-off-by: NAnton Blanchard <anton@samba.org>
Acked-by: NSathya Perla <sperla@emulex.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently the mlx4 drivers don't have the necessary callbacks to
implement EEH errors detection and recovery, so the PCI layer uses the
probe and remove callbacks to try to recover the device after an error on
the bus. However, these callbacks have race conditions with the internal
catastrophic error recovery functions, which will also detect the error
and this can cause the system to crash if both EEH and catas functions
try to reset the device.

This patch adds the necessary error recovery callbacks and makes sure
that the internal catastrophic error functions will not try to reset the
device in such scenarios. It also adds some calls to
pci_channel_offline() to suppress reads/writes on the bus when the slot
cannot accept I/O operations so we prevent unnecessary accesses to the
bus and speed up the device removal.
Signed-off-by: NKleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Acked-by: NShlomo Pongratz <shlomop@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The clk patches added code to get and enable clocks in the
respective driver probe functions.  If the probe function failed
for some reason after enabling the clock, the clock was not
disabled again in many cases.
Signed-off-by: NSimon Baatz <gmbnomis@gmail.com>
Signed-off-by: NAndrew Lumm <andrew@lunn.ch>

In boards with 4-ports, Tx LPI statistics were gathered incorrectly.
This patch guarantees that each pmf will only query its own port for
these statistics.
Signed-off-by: NYuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: NEilon Greenstein <eilong@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This reverts commit 036dafa2.

First it appears in bisection, then reverting it solves the usual
netdev watchdog problem for different people. I don't have a proper
fix yet so get rid of it.
Bisected-and-reported-by: NAlex Villacís Lasso <a_villacis@palosanto.com>
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Cc: Josh Boyer <jwboyer@redhat.com>
Cc: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The device tree will supply the register bank base addresses, make
register addressing relative to those.  PHY connection is now
described by the device tree.

The OCTEON_IRQ_MII{0,1} symbols are also removed as they are now
unused and interfere with the irq_domain used for device tree irq
mapping.
Signed-off-by: NDavid Daney <david.daney@cavium.com>
Acked-by: NDavid S. Miller <davem@davemloft.net>
Cc: linux-mips@linux-mips.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/3941/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The 57840 boards come in two flavours: 2 x 20G and 4 x 10G.
To better differentiate between the two flavours, a separate device ID
was assigned to each.
The silicon default value is still the currently supported 57840 device ID
(0x168d), and since a user can damage the nvram (e.g., 'ethtool -E')
the driver will still support this device ID to allow the user to amend the
nvram back into a supported configuration.

Notice this patch contains lines longer than 80 characters (strings).
Signed-off-by: NYuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: NEilon Greenstein <eilong@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Change niu_rbr_fill() to use unlikely() to check niu_rbr_add_page() return
value to be consistent with the rest of the checks after niu_rbr_add_page()
calls in this file.
Signed-off-by: NShuah Khan <shuah.khan@hp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Fix Neptune ethernet driver to check dma mapping error after map_page()
interface returns.
Signed-off-by: NShuah Khan <shuah.khan@hp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add pm_runtime support to the TI Davinci EMAC driver.

CC: Sekhar Nori <nsekhar@ti.com>
CC: Kevin Hilman <khilman@ti.com>
Signed-off-by: NMark A. Greer <mgreer@animalcreek.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The '#include <mach/mux.h>' line in davinci_emac.c
causes a compile error because that header file
isn't found.  It turns out that the #include isn't
needed because the driver isn't (and shoudn't be)
touching the mux anyway, so remove it.

CC: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: NMark A. Greer <mgreer@animalcreek.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This driver now offers software transmit time stamping, so it should
advertise that fact via ethtool. Compile tested only.
Signed-off-by: NRichard Cochran <richardcochran@gmail.com>

Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This driver now offers software transmit time stamping, so it should
advertise that fact via ethtool. Compile tested only.
Signed-off-by: NRichard Cochran <richardcochran@gmail.com>

Cc: Willem de Bruijn <willemb@google.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: e1000-devel@lists.sourceforge.net
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This driver now offers software transmit time stamping, so it should
advertise that fact via ethtool. Compile tested only.
Signed-off-by: NRichard Cochran <richardcochran@gmail.com>

Cc: Willem de Bruijn <willemb@google.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: e1000-devel@lists.sourceforge.net
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This driver now offers software transmit time stamping, so it should
advertise that fact via ethtool. Compile tested only.
Signed-off-by: NRichard Cochran <richardcochran@gmail.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: NEilon Greenstein <eilong@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Fix race condition in several network drivers when reading stats on 32bit
UP architectures.  These drivers update their stats in a BH context and
therefore should use u64_stats_fetch_begin_bh/u64_stats_fetch_retry_bh
instead of u64_stats_fetch_begin/u64_stats_fetch_retry when reading the
stats.
Signed-off-by: NKevin Groeneveld <kgroeneveld@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There was a previous patch to resolve issue with 82576 losing PHY setting
after PHY power down. However that previous implementation triggered speed
mismatch and occasional link lost. Now, this patch resolves both initial
PHY setting and speed mismatch issues.
Signed-off-by: NAkeem G. Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: NJeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This change makes it so that we can use 1TC DCB in the case of MSI and
legacy interrupts.  The advantage to this is that it allows us to fully
support FCoE w/ DCB instead of having to drop to link flow control only
when using these interrupt modes.

Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Tested-by: NRoss Brattain <ross.b.brattain@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch adds support for a new 82599 device that supports WoL.
Signed-off-by: NDon Skidmore <donald.c.skidmore@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

With DCB and FCoE configured extra queues may be allocated and
never used. After this patch we calculate the max correctly.
Signed-off-by: NJohn Fastabend <john.r.fastabend@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: NRoss Brattain <ross.b.brattain@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Do RAR entry accounting correctly so that errors are reported and
promisc mode is set correctly when the number of entries exceeds
the hardware limits.

This can happen with many macvlan devices attached to the PF or
by adding many fdb entries in SR-IOV modes.

Also this includes a small refactor to fdb_add() to avoid having so
many nested if/else statements after adding a check for the number
or RAR entries.

The max entries for the PF is currently 16 we allow 15 additional
entries to account for the defined MAC.
Signed-off-by: NJohn Fastabend <john.r.fastabend@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: NRoss Brattain <ross.b.brattain@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This change makes it so the function ixgbe_dcb_get_tc_from_up will use the
num_tcs.pg_tcs to determine the starting value for determining a traffic
class based on a user priority.  The main motivation for this change is to
address possible bad configurations in which more TCs worth of data are
populated then there are actual TCs.  By limiting this value we can at
least make certain we are not providing a map with values that are out of
range.

As a result any user priorities that are setup in the configuration with a
traffic class mapping higher than what the hardware supports will be
reported as being on TC 0.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Acked-by: NGreg Rose <gregory.v.rose@intel.com>
Tested-by: NStephen Ko <stephen.s.ko@intel.com>
Tested-by: NRoss Brattain <ross.b.brattain@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The recent changes to netdev_alloc_skb actually make it so that the size of
the buffer now actually has a more direct input on the truesize.  So in
order to make best use of the piece of a page we are allocated I am
reducing the IXGBE_RX_HDR_SIZE to 256 so that our truesize will be reduced
by 256 bytes as well.

This should result in performance improvements since the number of uses per
page should increase from 4 to 6 in the case of a 4K page.  In addition we
should see socket performance improvements due to the truesize dropping
to less than 1K for buffers less than 256 bytes.

Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Make the function static to cleanup namespace.
Signed-off-by: NGreg Rose <gregory.v.rose@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Sibai Li <Sibai.li@intel.com
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This change makes it so that we can use the atr_sample_rate to determine if
we are capable of supporting ATR. The advantage to this approach is that it
allows us to now determine the setting of the IXGBE_FLAG_FDIR_HASH_CAPABLE
based on the queueing scheme, instead of the queueing scheme being based on
the flag.

Using this approach there are essentially 5 conditions that must be checked
prior to trying to enable ATR:
1.  Is SR-IOV disabled?
2.  Are the number of TCs <= 1?
3.  Is RSS queueing limit greater than 1?
4.  Is atr_sample_rate set?
5.  Is Flow Director perfect filtering disabled?

If any of these conditions are enabled they should disable ATR filtering.
Note that in the case of conditions 1 through 4 being met we will set
things up for ATR queueing, however if test 5 fails we will still leave the
queues allocated for use by perfect filters.  The reason for this is to
allow for us to switch back and forth between ntuple and ATR without
needing to reallocate the descriptor rings.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This change adds support for handling IO errors and slot resets.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: NGreg Rose <gregory.v.rose@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This change adds a spinlock around the mailbox accesses to prevent
simultaneous access to the mailboxes.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: NGreg Rose <gregory.v.rose@intel.com>
Tested-by: NSibai Li <sibai.li@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch does two things.  First it drops the unnecessary work of
searching for enabled VFs when we first bring up the adapter and instead
just uses pci_num_vf to determine how many VFs are enabled on the adapter.

The second thing it does is drop the use of vfdev from the vf_data_storage
structure.  Instead we just search the entire system for a VF that has us
as it's PF, and then if that VF is assigned we indicate that the VFs are
assigned.  This allows us to still check for assigned VFs even if the
vfinfo allocation has failed, or vfinfo has been freed.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Acked-by: NGreg Rose <gregory.v.rose@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: NSibai Li <sibai.li@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This is meant to fix a bug in which we were not checking for pre-existing
VFs if we were not setting the max_vfs value at driver load.  What happens
now is that we always call ixgbe_enable_sriov and this checks for
pre-existing VFs ore requested VFs prior to deciding on no SR-IOV.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: NSibai Li <sibai.li@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The replacement of spin_lock_irq/spin_unlock_irq pair in interrupt
handler by spin_lock_irqsave/spin_lock_irqrestore pair.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NDenis Efremov <yefremov.denis@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>