Commit Graph

16415 Commits

Author SHA1 Message Date
Lino Sanfilippo
739c8e149a net: ethernet: stmmac: remove private tx queue lock
The driver uses a private lock for synchronization of the xmit function and
the xmit completion handler, but since the NETIF_F_LLTX flag is not set,
the xmit function is also called with the xmit_lock held.

On the other hand the completion handler uses the reverse locking order by
first taking the private lock and (in case that the tx queue had been
stopped) then the xmit_lock.

Improve the locking by removing the private lock and using only the
xmit_lock for synchronization instead.

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-10 23:26:54 -05:00
Lino Sanfilippo
980f140493 net: ethernet: sxgbe: remove private tx queue lock
The driver uses a private lock for synchronization of the xmit function and
the xmit completion handler, but since the NETIF_F_LLTX flag is not set,
the xmit function is also called with the xmit_lock held.

On the other hand the completion handler uses the reverse locking order by
first taking the private lock and (in case that the tx queue had been
stopped) then the xmit_lock.

Improve the locking by removing the private lock and using only the
xmit_lock for synchronization instead.

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-10 23:23:35 -05:00
Philippe Reynes
bfd8d977af net: nicvf: use new api ethtool_{get|set}_link_ksettings
The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-10 17:31:44 -05:00
Ivan Khoronzhuk
52986a2f92 net: ethernet: ti: cpsw: sync rates for channels in dual emac mode
The channels are common for both ndevs in dual emac mode. Hence, keep
in sync their rates.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-10 17:29:47 -05:00
Ivan Khoronzhuk
0be01b8e0a net: ethernet: ti: cpsw: re-split res only when speed is changed
Don't re-split res in the following cases:
- speed of phys is not changed
- speed of phys is changed and no rate limited channels
- speed of phys is changed and all channels are rate limited
- phy is unlinked while dev is open
- phy is linked back but speed is not changed

The maximum speed is sum of "linked" phys, thus res are split taken
in account two interfaces, both for dual emac mode and for
switch mode.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-10 17:29:47 -05:00
Ivan Khoronzhuk
32b78d8563 net: ethernet: ti: cpsw: combine budget and weight split and check
Re-split weight along with budget. It simplify code a little
and update state after every rate change. Also it's necessarily
to move arguments checks to this combined function. Replace
maximum rate check for an interface on maximum possible rate.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-10 17:29:47 -05:00
Ivan Khoronzhuk
32b5f2d1f9 net: ethernet: ti: cpsw: don't start queue twice
No need to start queues after cpsw is started as it will be done
while cpsw_adjust_link(), after phy connection.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-10 17:29:47 -05:00
Ivan Khoronzhuk
cb7d78d045 net: ethernet: ti: cpsw: use same macros to get active slave
Use the same, more convenient macros, to get active slave.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-10 17:29:47 -05:00
Arnd Bergmann
0e85663b88 net: mvneta: select GENERIC_ALLOCATOR
We previously relied on GENERIC_ALLOCATOR to be selected by CONFIG_ARM,
but now we can compile-test the driver on other architectures that
don't select it:

drivers/net/built-in.o: In function `mvneta_bm_remove':
mvneta_bm.c:(.text+0x4ee35): undefined reference to `gen_pool_free'

This adds an explicit select for the part of the driver that has
the dependency.

Fixes: a0627f776a ("net: marvell: Allow drivers to be built with COMPILE_TEST")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-10 17:27:53 -05:00
David S. Miller
821781a9f4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-10 16:21:55 -05:00
Christopher Covington
d33695fbfa net: mlx5: Fix Kconfig help text
Since the following commit, Infiniband and Ethernet have not been
mutually exclusive.

Fixes: 4aa17b28 mlx5: Enable mutual support for IB and Ethernet
Signed-off-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-09 23:08:32 -05:00
Linus Walleij
ab4e4c07ac net: smsc911x: back out silently on probe deferrals
When trying to get a regulator we may get deferred and we see
this noise:

smsc911x 1b800000.ethernet-ebi2 (unnamed net_device) (uninitialized):
   couldn't get regulators -517

Then the driver continues anyway. Which means that the regulator
may not be properly retrieved and reference counted, and may be
switched off in case noone else is using it.

Fix this by returning silently on deferred probe and let the
system work it out.

Cc: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-09 23:05:16 -05:00
Thomas Falcon
7b5967389f ibmveth: set correct gso_size and gso_type
This patch is based on an earlier one submitted
by Jon Maxwell with the following commit message:

"We recently encountered a bug where a few customers using ibmveth on the
same LPAR hit an issue where a TCP session hung when large receive was
enabled. Closer analysis revealed that the session was stuck because the
one side was advertising a zero window repeatedly.

We narrowed this down to the fact the ibmveth driver did not set gso_size
which is translated by TCP into the MSS later up the stack. The MSS is
used to calculate the TCP window size and as that was abnormally large,
it was calculating a zero window, even although the sockets receive buffer
was completely empty."

We rely on the Virtual I/O Server partition in a pseries
environment to provide the MSS through the TCP header checksum
field. The stipulation is that users should not disable checksum
offloading if rx packet aggregation is enabled through VIOS.

Some firmware offerings provide the MSS in the RX buffer.
This is signalled by a bit in the RX queue descriptor.

Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Pradeep Satyanarayana <pradeeps@linux.vnet.ibm.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Reviewed-by: Jonathan Maxwell <jmaxwell37@gmail.com>
Reviewed-by: David Dai <zdai@us.ibm.com>
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-09 22:47:22 -05:00
Timur Tabi
a51f404723 net: qcom/emac: add support for the Qualcomm Technologies QDF2400
The QDF2432 and the QDF2400 have slightly different internal PHYs,
so there are some programming differences.  Some of the registers in
the QDF2400 have moved, and some registers require different values
during initialization.

Because of the differences, and because HIDs are a scare resource,
the ACPI tables specify the hardware version in an _HRV property.
Version 1 is the QDF2432, and version 2 is the QDF2400.  Any future
SOC that has the same internal PHY but different programming
requirements will be assigned the next available version number.

Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-09 22:11:02 -05:00
Timur Tabi
1e88ab6fbb net: qcom/emac: move phy init code to separate files
The internal PHY of the EMAC differs on each SOC, and the list will
only continue to grow.  By separating the code into individual files,
we can add support for more SOCs more cleanly.

Note: The internal PHY is also sometimes called the SGMII device.

We also stop referring to the various PHY variations by version number,
so no more "v2", "v3", etc.  Instead, the devices are named after the
SOC they are, which is in sync with the device tree property names.

Future patches will probably rearrange more code among the files.

Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-09 22:11:02 -05:00
Arnd Bergmann
f006b2c5df net: xgene: avoid bogus maybe-uninitialized warning
In some configurations, gcc cannot trace the state of variables
across a spin_unlock() barrier, leading to a warning about
correct code:

xgene_enet_main.c: In function 'xgene_enet_start_xmit':
../../../phy/mdio-xgene.h:112:14: error: 'mss_index' may be used uninitialized in this function [-Werror=maybe-uninitialized]

Here we can trivially move the assignment before that spin_unlock,
which reliably avoids the warning.

Fixes: e3978673f5 ("drivers: net: xgene: Fix MSS programming")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 21:30:54 -05:00
Arnd Bergmann
dece303fa3 net: xgene: move xgene_cle_ptree_ewdn data off stack
The array for initializing the cle is set up on the stack with
almost entirely constant data and then passed to a function that
converts it into HW specific bit patterns. With the latest
addition, the size of this array has grown to the point that
we get a warning about potential stack overflow in allmodconfig
builds:

xgene_enet_cle.c: In function ‘xgene_enet_cle_init’:
xgene_enet_cle.c:836:1: error: the frame size of 1032 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]

Looking a bit deeper at the usage, I noticed that the only modification
of the data is in dead code, as we don't even use the cle module
for phy_mode other than PHY_INTERFACE_MODE_XGMII. This means we
can simply mark the structure constant and access it directly rather
than passing the pointer down through another structure, making
the code more efficient at the same time as avoiding the
warning.

Fixes: a809701fed ("drivers: net: xgene: fix: RSS for non-TCP/UDP")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 21:30:54 -05:00
Arnd Bergmann
9afd895271 net/mlx5e: use %pad format string for dma_addr_t
On 32-bit ARM with 64-bit dma_addr_t I get this warning about an
incorrect format string:

In file included from /git/arm-soc/drivers/net/ethernet/mellanox/mlx5/core/alloc.c:42:0:
drivers/net/ethernet/mellanox/mlx5/core/alloc.c: In function ‘mlx5_frag_buf_alloc_node’:
drivers/net/ethernet/mellanox/mlx5/core/alloc.c:134:12: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]

We have the special %pad format for printing dma_addr_t, so use that
to print the correct address and avoid the warning.

Fixes: 1c1b522808 ("net/mlx5e: Implement Fragmented Work Queue (WQ)")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 21:30:54 -05:00
Florian Fainelli
5579f28cc8 net: ethernet: cpmac: Call SET_NETDEV_DEV()
The TI CPMAC driver calls into PHYLIB which now checks for
net_device->dev.parent, so make sure we do set it before calling into
any MDIO/PHYLIB related function.

Fixes: ec988ad78e ("phy: Don't increment MDIO bus refcount unless it's a different owner")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 21:26:58 -05:00
Florian Fainelli
9cecb138e5 net: ethernet: lantiq_etop: Call SET_NETDEV_DEV()
The Lantiq Etop driver calls into PHYLIB which now checks for
net_device->dev.parent, so make sure we do set it before calling into
any MDIO/PHYLIB related function.

Fixes: ec988ad78e ("phy: Don't increment MDIO bus refcount unless it's a different owner")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 21:26:58 -05:00
Arjun V
d2a007ab19 cxgb4/cxgb4vf: Assign netdev->dev_port with port ID
Added missing dev_port assignment in cxgb4vf driver.
Also made dev_port assignment of cxgb4 in sync with cxgb4vf driver.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Arjun V <arjun@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 18:20:08 -05:00
Raghu Vatsavayi
b0d66369ed liquidio VF error handling
Adds support for VF error handling.

Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 18:16:51 -05:00
Raghu Vatsavayi
f625fe6208 liquidio VF timestamp
Adds support for VF timestamp.

Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 18:16:51 -05:00
Raghu Vatsavayi
d8ab848c6b liquidio VF ethtool stats
Adds support for VF ethtool stats

Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 18:16:51 -05:00
Raghu Vatsavayi
c05ebcc8a5 liquidio VF vxlan
Adds VF vxlan offload support.

Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 18:16:51 -05:00
Raghu Vatsavayi
2135f9b112 liquidio VF vlan support
Adds support for VF vlan features.

Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 18:16:51 -05:00
Ganesh Goudar
ea1e76f78a cxgb4/cxgb4vf: Remove deprecated module parameters
Remove deprecated module parameters num_vf, dflt_msg_enable and
force_init.

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 14:31:37 -05:00
Martin KaFai Lau
ea3349a035 mlx4: xdp: Reserve headroom for receiving packet when XDP prog is active
Reserve XDP_PACKET_HEADROOM for packet and enable bpf_xdp_adjust_head()
support.  This patch only affects the code path when XDP is active.

After testing, the tx_dropped counter is incremented if the xdp_prog sends
more than wire MTU.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 14:25:13 -05:00
Martin KaFai Lau
b45f0674b9 mlx4: xdp: Allow raising MTU up to one page minus eth and vlan hdrs
When XDP is active in mlx4, mlx4 is using one page/pkt.
At the same time (i.e. when XDP is active), it is currently
limiting MTU to be FRAG_SZ0 - ETH_HLEN - (2 * VLAN_HLEN)
which is 1514 in x86.  AFAICT, we can at least raise the MTU
limit up to PAGE_SIZE - ETH_HLEN - (2 * VLAN_HLEN) which this
patch is doing.  It will be useful in the next patch which
allows XDP program to extend the packet by adding new header(s).

Note: In the earlier XDP patches, there is already existing guard
to ensure the page/pkt scheme only applies when XDP is active
in mlx4.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 14:25:13 -05:00
Martin KaFai Lau
17bedab272 bpf: xdp: Allow head adjustment in XDP prog
This patch allows XDP prog to extend/remove the packet
data at the head (like adding or removing header).  It is
done by adding a new XDP helper bpf_xdp_adjust_head().

It also renames bpf_helper_changes_skb_data() to
bpf_helper_changes_pkt_data() to better reflect
that XDP prog does not work on skb.

This patch adds one "xdp_adjust_head" bit to bpf_prog for the
XDP-capable driver to check if the XDP prog requires
bpf_xdp_adjust_head() support.  The driver can then decide
to error out during XDP_SETUP_PROG.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 14:25:13 -05:00
Raghu Vatsavayi
9217c3cf84 liquidio VF rx data and ctl path
Adds support for VF receive data control path.

Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:21:39 -05:00
Raghu Vatsavayi
9bdca5c66b liquidio CN23XX: VF TX buffers
Adds support for freeing VF xmit buffers.

Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:21:39 -05:00
Raghu Vatsavayi
9981328a87 liquidio CN23XX: VF xmit
Adds support for transmit functionality in VF.

Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:21:39 -05:00
Raghu Vatsavayi
beea50a5d5 liquidio CN23XX: VF scatter gather lists
Adds support for VF scatter gather lists.

Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:21:39 -05:00
Raghu Vatsavayi
50f7f94b96 liquidio CN23XX: VF mac address
Adds support for configuring mtu, multicast and mac address.

Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:21:39 -05:00
Raghu Vatsavayi
3cd25e4821 liquidio CN23XX: VF link status
Adds support for VF link status related changes.

Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:21:39 -05:00
Raghu Vatsavayi
846b46873e liquidio CN23XX: VF offload features
Adds support for VF link initialization and offload features.

Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:21:39 -05:00
Niklas Cassel
4022d039a3 net: smmac: allow configuring lower pbl values
The driver currently always sets the PBLx8/PBLx4 bit, which means that
the pbl values configured via the pbl/txpbl/rxpbl DT properties are
always multiplied by 8/4 in the hardware.

In order to allow the DT to configure lower pbl values, while at the
same time not changing behavior of any existing device trees using the
pbl/txpbl/rxpbl settings, add a property to disable the multiplication
of the pbl by 8/4 in the hardware.

Suggested-by: Rabin Vincent <rabinv@axis.com>
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:07:10 -05:00
Niklas Cassel
89caaa2d80 net: stmmac: add support for independent DMA pbl for tx/rx
GMAC and newer supports independent programmable burst lengths for
DMA tx/rx. Add new optional devicetree properties representing this.

To be backwards compatible, snps,pbl will still be valid, but
snps,txpbl/snps,rxpbl will override the value in snps,pbl if set.

If the IP is synthesized to use the AXI interface, there is a register
and a matching DT property inside the optional stmmac-axi-config DT node
for controlling burst lengths, named snps,blen.
However, using this register, it is not possible to control tx and rx
independently. Also, this register is not available if the IP was
synthesized with, e.g., the AHB interface.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:07:10 -05:00
Niklas Cassel
825658a273 net: stmmac: dwmac1000: fix define DMA_BUS_MODE_RPBL_MASK
DMA_BUS_MODE_RPBL_MASK is really 6 bits,
just like DMA_BUS_MODE_PBL_MASK.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:07:10 -05:00
Niklas Cassel
a332e2fa56 net: stmmac: stmmac_platform: fix parsing of DT binding
commit 64c3b252e9 ("net: stmmac: fixed the pbl setting with DT")
changed the parsing of the DT binding.

Before 64c3b252e9, snps,fixed-burst and snps,mixed-burst were parsed
regardless if the property snps,pbl existed or not.
After the commit, fixed burst and mixed burst are only parsed if
snps,pbl exists. Now when snps,aal has been added, it too is only
parsed if snps,pbl exists.

Since the DT binding does not specify that fixed burst, mixed burst
or aal depend on snps,pbl being specified, undo changes introduced
by 64c3b252e9.

The issue commit 64c3b252e9 ("net: stmmac: fixed the pbl setting with
DT") tries to address is solved in another way:
The databook specifies that all values other than
1, 2, 4, 8, 16, or 32 results in undefined behavior,
so snps,pbl = <0> is invalid.

If pbl is 0 after parsing, set pbl to DEFAULT_DMA_PBL.
This handles the case where the property is omitted, and also handles
the case where the property is specified without any data.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:07:10 -05:00
Niklas Cassel
50ca903afc net: stmmac: simplify the common DMA init API
Use struct stmmac_dma_cfg *dma_cfg as an argument rather
than using all the struct members as individual arguments.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:07:10 -05:00
Niklas Cassel
89ab75bf72 net: stmmac: return error if no DMA configuration is found
All drivers except pci glue layer calls stmmac_probe_config_dt.
stmmac_probe_config_dt does a kzalloc dma_cfg.

pci glue layer does kzalloc dma_cfg explicitly, so all current
drivers does a kzalloc dma_cfg.

Return an error if no DMA configuration is found, that way
we can assume that the DMA configuration always exists.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:07:10 -05:00
Tobias Klauser
3f0dd6b79c net: ethernet: slicoss: use module_pci_driver()
Use module_pci_driver() to get rid of some boilerplate code.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:00:02 -05:00
Niklas Cassel
7cc99fd29b net: stmmac: stmmac_platform: use correct setup function for gmac4
devicetree binding for stmmac states:
- compatible: Should be "snps,dwmac-<ip_version>", "snps,dwmac"
	For backwards compatibility: "st,spear600-gmac" is also supported.

Previously, when specifying "snps,dwmac-4.10a", "snps,dwmac" as your
compatible string, plat_stmmacenet_data would have both has_gmac and
has_gmac4 set.

This would lead to stmmac_hw_init calling dwmac1000_setup rather than
dwmac4_setup, resulting in a non-functional driver.
This happened since the check for has_gmac is done before the check for
has_gmac4. However, the order should not matter, so it does not make sense
to have both set.

If something is valid for both, you should do as the stmmac_interrupt does:
if (priv->plat->has_gmac || priv->plat->has_gmac4) ...

The places where it was obvious that the author actually meant
if (has_gmac || has_gmac4) rather than if (has_gmac) has been updated.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 11:35:37 -05:00
Niklas Cassel
4966a692d0 net: stmmac: dwmac-generic: add missing compatible strings
devicetree binding for stmmac states:
- compatible: Should be "snps,dwmac-<ip_version>", "snps,dwmac"
	For backwards compatibility: "st,spear600-gmac" is also supported.

Since dwmac-generic.c calls stmmac_probe_config_dt explicitly,
another alternative would have been to remove all compatible strings
other than "snps,dwmac" and "st,spear600-gmac" from dwmac-generic.c.

However, that would probably do more good than harm, since when trying
to figure out what hardware a certain driver supports, you usually look
at the compatible strings in the struct of_device_id, and not in some
function defined in a completely different file.

No functional change intended.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 11:35:37 -05:00
Tobias Klauser
0620547276 net: ll_temac: Utilize of_get_mac_address()
Do not open code getting the MAC address exclusively from the
"local-mac-address" property, but instead use of_get_mac_address()
which looks up the MAC address using the 3 typical property names.

Also avoid casting away the const qualifier of the return value by
making temac_init_mac_address() take a const void* address.

Follows commit b34296a9c0 ("net: ethoc: Utilize
of_get_mac_address()").

Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 11:34:03 -05:00
Tobias Klauser
da90e38003 net: axienet: Utilize of_get_mac_address()
Do not open code getting the MAC address exclusively from the
"local-mac-address" property, but instead use of_get_mac_address()
which looks up the MAC address using the 3 typical property names.

Also avoid casting away the const qualifier of the return value by
making axienet_set_mac_address() take a const void* address.

Follows commit b34296a9c0 ("net: ethoc: Utilize
of_get_mac_address()").

Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 11:34:03 -05:00
Or Gerlitz
3f7d0eb42d net/mlx5e: Offload TC matching on packets being IP fragments
Enable offloading of matching on packets being fragments.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 11:32:50 -05:00
Dan Carpenter
d26aac2d87 net: mvneta: Indent some statements
These two statements were not indented correctly so it's sort of
confusing.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 11:29:21 -05:00