ixgbe devices support different numbers of packet buffers either
8 or 4. Here we only allocate the minimal number of packet
buffers required to implement the net_devices number of traffic
classes.

Fewer traffic classes allows for larger packet buffers in
hardware. Also more Tx/Rx queues can be given to each
traffic class.

This patch is mostly about propagating the number of traffic
classes through the init path. Specifically this adds the 4TC
cases to the MRQC and MTQC setup routines. Also ixgbe_setup_tc()
was sanitized to handle other traffic class value.

Finally changing the number of packet buffers in the hardware
requires the device to reinit. So this moves the reinit work
from DCB into the main ixgbe_setup_tc() routine to consolidate
the reset code. Now dcbnl_xxx ops call ixgbe_setup_tc() to
configure packet buffers if needed.
Signed-off-by: NJohn Fastabend <john.r.fastabend@intel.com>
Tested-by: NRoss Brattain <ross.b.brattain@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The MRQC and MTQC registers are configured in the main
setup path but are also reconfigured in the DCB setup
path. The DCB path fixes the DCB configuration by configuring
the SECTXMINIFG gap which is required for DCB pause
to operate correctly.

This patch reduces the duplicate code and does all setup
in ixgbe_setup_mtqc() and ixgbe_setup_mrqc().

Additionally, this removes the IXGBE_QDE. This write never
set the WRITE bit in the register so the write was not
actually doing anything. Also this was to clear the register
but, it is never set and defaults to zero. If this is
needed for SRIOV it should be added correctly in a follow
up patch. But it's never been working so removing it here
should be OK.
Signed-off-by: NJohn Fastabend <john.r.fastabend@intel.com>
Tested-by: NRoss Brattain <ross.b.brattain@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Consolidate packet buffer allocation currently being
done in the DCB path and main path. This allows the
feature set and packet buffer requirements to be done
once.

This is prep work to allow DCB to coexist with other
features namely, flow director.

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

Replace duplicated code in if/else branches with single
check and ixgbe_init_interrupt_scheme().
Signed-off-by: NJohn Fastabend <john.r.fastabend@intel.com>
Tested-by: NRoss Brattain <ross.b.brattain@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Use standard format for net_device_ops (without &)
Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Acked-by: NGreg Rose <Gregory.v.rose@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

In two places storage for mbx_ops is misidentified as type
ixgbe_mac_operations.
Reported-by: NAndi Kleen <ak@linux.intel.com>
Signed-off-by: NGreg Rose <gregory.v.rose@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Private rx_csum flags are now duplicate of netdev->features & NETIF_F_RXCSUM.
Removing this needs deeper surgery.

Things noticed:
 - HW VLAN acceleration probably can be toggled, but it's left as is
 - the resets on RX csum offload change can probably be avoided
 - there is A LOT of copy-and-pasted code here
Signed-off-by: NMichał Mirosław <mirq-linux@rere.qmqm.pl>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Private rx_csum flags are now duplicate of netdev->features & NETIF_F_RXCSUM.
Removing this needs deeper surgery.

Things noticed:
 - RX csum disabled by default
 - HW VLAN acceleration probably can be toggled, but it's left as is
 - the resets on RX csum offload change can probably be avoided
 - there is A LOT of copy-and-pasted code here
Signed-off-by: NMichał Mirosław <mirq-linux@rere.qmqm.pl>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Because the socket buffer is freed in the completion interrupt, it is not
safe to access it after submitting it to the hardware.

Cc: stable@kernel.org
Cc: Sachin Sanap <ssanap@marvell.com>
Cc: Zhangfei Gao <zgao6@marvell.com>
Cc: Philip Rakity <prakity@marvell.com>
Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Acked-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds all missing functionalities for nfc except GRXFH. There is so much code because hardware has not a TCAM.
Further hardware rule space is very limited. So I had to extensively use
optimization features. Both reasons lead to the necessity to hold all
online flows in a linked-list.

Change-log:
# Some suggestions by Joe Perches applied (thanks!)
# Shorted some logs
# Use memcmp() for comparing
Signed-off-by: NSebastian Poehn <sebastian.poehn@belden.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch enables software (and phy device) transmit time stamping.
Compile tested only.

Cc: Shlomi Gridish <gridish@freescale.com>
Cc: Li Yang <leoli@freescale.com>
Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch enables software (and phy device) transmit time stamping
Compile tested only.

Cc: Sachin Sanap <ssanap@marvell.com>
Cc: Zhangfei Gao <zgao6@marvell.com>
Cc: Philip Rakity <prakity@marvell.com>
Cc: Mark Brown <markb@marvell.com>
Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch enables software (and phy device) transmit time stamping.
Compile tested only.

Cc: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch enables software (and phy device) transmit time stamping.
Compile tested only.

Cc: Pantelis Antoniou <pantelis.antoniou@gmail.com>
Cc: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch enables software (and phy device) transmit time stamping
Compile tested only.

Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch enables software (and phy device) time stamping. Software
time stamping using the SO_TIMESTAMPING API was tested and found to be
working on the LITE5200B board.

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch enables software (and phy device) time stamping. Since this MAC
is based on phylib, adding the hooks makes hardware time stamping in the
phy possible.

Compile tested only.

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch enables software (and phy device) time stamping. Since this
MAC uses phylib, adding the hooks make hardware time stamping in the phy
possible.

Compile tested only.

Cc: John Linn <john.linn@xilinx.com>
Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch enables software (and phy device) time stamping. This file is
included by drivers/net/ax88796.c, which is based on phylib. So, this
patch makes hardware time stamping in the PHY possible.

Compile tested only.
Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As soon as skb is given to hardware, TX completion can free skb under
us.
Therefore, we should update dev stats before kicking the device.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
CC: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

stats_lock is non useless, lets remove it.

Also, ndo_get_stats64() doesnt have to clear the stats, caller takes
care of this.

Note: folding 32bit fields in 64bit one is problematic when one of 32bit
values wraps : SNMP reader will see a ~2^32 back change in a 64bit
value. A future patch should fix this.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
CC: Stephen Hemminger <shemminger@vyatta.com>
CC: Andrew Gallatin <gallatin@myri.com>
CC: Brice Goglin <brice@myri.com>
Acked-by: NJon Mason <mason@myri.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove the myri_sbus driver. Why?
* There is no possibility of ethernet mode on this adapter, so it's
  Myrinet only.
* It won't inter-op with modern versions of Myrinet, and thus can only
  work with legacy adapters.
* There are no in-kernel Linux drivers for the PCI version of this
  adapter, so it only can work on ~15 year old Sun hardware.

It's long in the tooth, let's take it to the knackers.
Signed-off-by: NJon Mason <mason@myri.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Using 64bit stats on 32bit arches must use a synchronization or readers
can get transient values.

Fixes bug introduced in commit 6311cc44 (veth: convert to 64 bit
statistics)
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As soon as skb is given to hardware and spinlock released, TX completion
can free skb under us. Therefore, we should update netdev stats before
spinlock release.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Otherwise we will not see the name of the slave dev in error
message:

[  388.469446] (null):  doesn't support polling, aborting.
Signed-off-by: NWANG Cong <amwang@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Firmware checking is only performed when the firmware is loaded
instead of each time the driver inits the phy.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

The new firmware format adds versioning as firmware for a specific
chipset appears to be subject to change. Current "legacy" format is
still supported.
Signed-off-by: NHayes Wang <hayeswang@realtek.com>
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

No functional difference.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

The fst_open() function, after a successful try_module_get() may return
an error code if hdlc_open() returns it.  However, it does not put the
module on this error path.

This patch adds the necessary module_put() call.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NPavel Shved <shved@ispras.ru>
Signed-off-by: NDavid S. Miller <davem@conan.davemloft.net>

The RIPTR and TIPTR  (receive/transmit internal temporary data pointer),
used by microcode as a temporary buffer for data, must be 32-byte aligned
according to the RM for MPC8247.

Tested on mgcoge.
Signed-off-by: NClive Stubbings <clive.stubbings@xentech.co.uk>
Signed-off-by: NHolger Brunck <holger.brunck@keymile.com>
cc: Pantelis Antoniou <pantelis.antoniou@gmail.com>
cc: Vitaly Bordug <vbordug@ru.mvista.com>
cc: netdev@vger.kernel.org
Signed-off-by: NDavid S. Miller <davem@conan.davemloft.net>

The size of the desc array is not the size of the desc structure, so
when we try to free up things, we leak some parts.
Reported-by: NRegis Dargent <rdargent@edevice.com>
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NDavid S. Miller <davem@conan.davemloft.net>

Compile tested.
remove unnecessary code that matches this coccinelle pattern
	if (...)
		return ret;
	return ret;
Signed-off-by: NGreg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: NDavid S. Miller <davem@conan.davemloft.net>