Commit Graph

649779 Commits

Author SHA1 Message Date
Tobias Regnery
d768319cd4 alx: enable multiple tx queues
Enable multiple tx queues by default based on the number of online cpus. The
hardware supports up to four tx queues.

Based on the downstream driver at github.com/qca/alx

Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:46:30 -05:00
Tobias Regnery
f58e0f7747 alx: enable msi-x interrupts by default
Remove the module parameter to enable msi-x support and enable msi-x
interrupts unconditionally by default. This is a preparatory step to enable
multi queue support by default, because this is only working with msi-x
interrupts.

Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:46:30 -05:00
Tobias Regnery
2e06826bc6 alx: prepare tx path for multi queue support
This patch prepares the tx path to send data on multiple tx queues. It
introduces per queue register adresses and uses them in the alx_tx_queue
structs.

There are new helper functions for the queue mapping in the tx path.

Based on the downstream driver at github.com/qca/alx

Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:46:30 -05:00
Tobias Regnery
a4076d347f alx: prepare resource allocation for multi queue support
Allocate, initialise and free alx_tx_queue structs based on the number of
alx_napi structures. Also increase the size of the descriptor memory based
on the number of tx queues in use.

Based on the downstream driver at github.com/qca/alx

Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:46:30 -05:00
Tobias Regnery
e0eac25460 alx: prepare interrupt functions for multiple queues
Extend the interrupt bringup code and the interrupt handler for msi-x
interrupts in order to handle multiple queues.

We must change the poll function because with multiple queues it is possible
that an alx_napi structure has only a tx or only a rx queue pointer.

Based on the downstream driver at github.com/qca/alx

Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:46:30 -05:00
Tobias Regnery
702e84185f alx: switch to per queue data structures
Remove the tx and rx queue structures from the alx_priv structure and switch
everything over to the queue pointers in the alx_napi structure.

Based on the downstream driver at github.com/qca/alx

Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:46:30 -05:00
Tobias Regnery
b0999223f2 alx: add ability to allocate and free alx_napi structures
Add new functions to allocate and free the alx_napi structures and use them
in __alx_open and __alx_stop. We only allocate one of these structures for
now, as the rest of the driver is not yet ready for multiple queues.

We switch over the setup of the interrupt mask and the call to netif_napi_add
to the new function because we must adjust these later on a per queue basis.

Based on the downstream driver at github.com/qca/alx

Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:46:30 -05:00
Tobias Regnery
bccffcf715 alx: extend data structures for multi queue support
Extend the driver data structures to be able to handle multiple queues.

Based on the downstream driver at github.com/qca/alx

Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:46:30 -05:00
Tobias Regnery
8c2a4c8efb alx: refactor descriptor allocation
Split the allocation of descriptor memory and the buffer allocation into a
tx and rx function. This is in preparation for multiple queues where we
need to iterate over the new functions.

While at it drop the unneeded casting on the rx side.

Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:46:30 -05:00
Pei Zhang
0aaee4cc83 drm/i915/gvt: check workload empty before real scan
This patch will fix warning log print during command scan caused by
empty workload (ring head equals tail). This patch avoid going into
real scan process if workload is empty. It's guest's responsibility
to make sure if an empty workload is proper to submit to HW.

[v2] modify the patch description. It's a fix, not a w/a.

Signed-off-by: Pei Zhang <pei.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2016-11-16 11:45:29 +08:00
Sabrina Dubroca
b3cfaa31e3 rtnetlink: fix rtnl message size computation for XDP
rtnl_xdp_size() only considers the size of the actual payload attribute,
and misses the space taken by the attribute used for nesting (IFLA_XDP).

Fixes: d1fdd91386 ("rtnl: add option for setting link xdp prog")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Brenden Blanco <bblanco@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:40:07 -05:00
Sabrina Dubroca
7e75f74a17 rtnetlink: fix rtnl_vfinfo_size
The size reported by rtnl_vfinfo_size doesn't match the space used by
rtnl_fill_vfinfo.

rtnl_vfinfo_size currently doesn't account for the nest attributes
used by statistics (added in commit 3b766cd832), nor for struct
ifla_vf_tx_rate (since commit ed616689a3, which added ifla_vf_rate
to the dump without removing ifla_vf_tx_rate, but replaced
ifla_vf_tx_rate with ifla_vf_rate in the size computation).

Fixes: 3b766cd832 ("net/core: Add reading VF statistics through the PF netdevice")
Fixes: ed616689a3 ("net-next:v4: Add support to configure SR-IOV VF minimum and maximum Tx rate through ip tool")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:40:07 -05:00
David S. Miller
11b8ad33da Merge branch 'dpaa_eth-next'
Madalin Bucur says:

====================
dpaa_eth: Add the QorIQ DPAA Ethernet driver

This patch series adds the Ethernet driver for the Freescale
QorIQ Data Path Acceleration Architecture (DPAA).

This version includes changes following the feedback received
on previous versions from Eric Dumazet, Bob Cochran, Joe Perches,
Paul Bolle, Joakim Tjernlund, Scott Wood, David Miller - thank you.

Together with the driver a managed version of alloc_percpu
is provided that simplifies the release of per-CPU memory.

The Freescale DPAA architecture consists in a series of hardware
blocks that support the Ethernet connectivity. The Ethernet driver
depends upon the following drivers that are currently in the Linux
kernel:
 - Peripheral Access Memory Unit (PAMU)
    drivers/iommu/fsl_*
 - Frame Manager (FMan) added in v4.4
    drivers/net/ethernet/freescale/fman
 - Queue Manager (QMan), Buffer Manager (BMan) added in v4.9-rc1
    drivers/soc/fsl/qbman

dpaa_eth interfaces mapping to FMan MACs:

  dpaa_eth       /eth0\     ...       /ethN\
  driver        |      |             |      |
  -------------   ----   -----------   ----   -------------
       -Ports  / Tx  Rx \    ...    / Tx  Rx \
  FMan        |          |         |          |
       -MACs  |   MAC0   |         |   MACN   |
             /   dtsec0   \  ...  /   dtsecN   \ (or tgec)
            /              \     /              \(or memac)
  ---------  --------------  ---  --------------  ---------
      FMan, FMan Port, FMan SP, FMan MURAM drivers
  ---------------------------------------------------------
      FMan HW blocks: MURAM, MACs, Ports, SP
  ---------------------------------------------------------

dpaa_eth relation to QMan, FMan:
              ________________________________
  dpaa_eth   /            eth0                \
  driver    /                                  \
  ---------   -^-   -^-   -^-   ---    ---------
  QMan driver / \   / \   / \  \   /  | BMan    |
             |Rx | |Rx | |Tx | |Tx |  | driver  |
  ---------  |Dfl| |Err| |Cnf| |FQs|  |         |
  QMan HW    |FQ | |FQ | |FQ | |   |  |         |
             /   \ /   \ /   \  \ /   |         |
  ---------   ---   ---   ---   -v-    ---------
            |        FMan QMI         |         |
            | FMan HW       FMan BMI  | BMan HW |
              -----------------------   --------

where the acronyms used above (and in the code) are:
DPAA = Data Path Acceleration Architecture
FMan = DPAA Frame Manager
QMan = DPAA Queue Manager
BMan = DPAA Buffers Manager
QMI = QMan interface in FMan
BMI = BMan interface in FMan
FMan SP = FMan Storage Profiles
MURAM = Multi-user RAM in FMan
FQ = QMan Frame Queue
Rx Dfl FQ = default reception FQ
Rx Err FQ = Rx error frames FQ
Tx Cnf FQ = Tx confirmation FQ
Tx FQs = transmission frame queues
dtsec = datapath three speed Ethernet controller (10/100/1000 Mbps)
tgec = ten gigabit Ethernet controller (10 Gbps)
memac = multirate Ethernet MAC (10/100/1000/10000)

Changes from v7:
 - remove the debug option to use a common buffer pool for all the
   interfaces

Changed from v6:
 - fixed an issue on an error path in dpaa_set_mac_address()
 - removed NDO operation definitions that were not needed
 - sorted the local variable declarations
 - cleaned up a few checkpatch checks
 - removed friendly network interface naming code

Changes from v5:
 - adapt to the latest Q/BMan drivers API
 - use build_skb() on Rx path instead of buffer pool refill path
 - proper support for multiple buffer pools
 - align function, variable names, code cleanup
 - driver file structure cleanup

Changes from v4:
 - addressed feedback from Scott Wood and Joe Perches
 - fixed spelling
 - fixed leak of uninitialized stack to userspace
 - fix prints
 - replace raw_cpu_ptr() with this_cpu_ptr()
 - remove _s from the end of structure names
 - remove underscores at start of functions, goto labels
 - remove likely in error paths
 - use container_of() instead of open casts
 - remove priv from the driver name
 - move return type on same line with function name
 - drop DPA_READ_SKB_PTR/DPA_WRITE_SKB_PTR

Changes from v3:
 - removed bogus delay and comment in .ndo_stop implementation
 - addressed minor issues reported by David Miller

Changes from v2:
 - removed debugfs, moved exports to ethtool statistics
 - removed congestion groups Kconfig params

Changes from v1:
 - bpool level Kconfig options removed
 - print format using pr_fmt, cleaned up prints
 - __hot/__cold removed
 - gratuitous unlikely() removed
 - code style aligned, consistent spacing for declarations
 - comment formatting
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:34:27 -05:00
Madalin Bucur
e0bd03d0ea arch/powerpc: Enable dpaa_eth
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:34:25 -05:00
Madalin Bucur
9256f21e50 arch/powerpc: Enable FSL_FMAN
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:34:25 -05:00
Madalin Bucur
8f2840197a arch/powerpc: Enable FSL_PAMU
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:34:25 -05:00
Madalin Bucur
eb11ddf36e dpaa_eth: add trace points
Add trace points on the hot processing path.

Signed-off-by: Ruxandra Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:34:25 -05:00
Madalin Bucur
846a86e201 dpaa_eth: add sysfs exports
Export Frame Queue and Buffer Pool IDs through sysfs.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:34:25 -05:00
Madalin Bucur
b0ce0d02e4 dpaa_eth: add ethtool statistics
Add a series of counters to be exported through ethtool:
- add detailed counters for reception errors;
- add detailed counters for QMan enqueue reject events;
- count the number of fragmented skbs received from the stack;
- count all frames received on the Tx confirmation path;
- add congestion group statistics;
- count the number of interrupts for each CPU.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:34:25 -05:00
Madalin Bucur
b0cdb1682b dpaa_eth: add ethtool functionality
Add support for basic ethtool operations.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:34:25 -05:00
Madalin Bucur
9ad1a37493 dpaa_eth: add support for DPAA Ethernet
This introduces the Freescale Data Path Acceleration Architecture
(DPAA) Ethernet driver (dpaa_eth) that builds upon the DPAA QMan,
BMan, PAMU and FMan drivers to deliver Ethernet connectivity on
the Freescale DPAA QorIQ platforms.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:34:25 -05:00
Madalin Bucur
ff86aae3b4 devres: add devm_alloc_percpu()
Introduce managed counterparts for alloc_percpu() and free_percpu().
Add devm_alloc_percpu() and devm_free_percpu() into the managed
interfaces list.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:34:25 -05:00
Andrey Vagin
319b0534b9 tcp: allow to enable the repair mode for non-listening sockets
The repair mode is used to get and restore sequence numbers and
data from queues. It used to checkpoint/restore connections.

Currently the repair mode can be enabled for sockets in the established
and closed states, but for other states we have to dump the same socket
properties, so lets allow to enable repair mode for these sockets.

The repair mode reveals nothing more for sockets in other states.

Signed-off-by: Andrei Vagin <avagin@openvz.org>
Acked-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:28:50 -05:00
Eric Dumazet
e88a276614 gro_cells: mark napi struct as not busy poll candidates
Rolf Neugebauer reported very long delays at netns dismantle.

Eric W. Biederman was kind enough to look at this problem
and noticed synchronize_net() occurring from netif_napi_del() that was
added in linux-4.5

Busy polling makes no sense for tunnels NAPI.
If busy poll is used for sessions over tunnels, the poller will need to
poll the physical device queue anyway.

netif_tx_napi_add() could be used here, but function name is misleading,
and renaming it is not stable material, so set NAPI_STATE_NO_BUSY_POLL
bit directly.

This will avoid inserting gro_cells napi structures in napi_hash[]
and avoid the problematic synchronize_net() (per possible cpu) that
Rolf reported.

Fixes: 93d05d4a32 ("net: provide generic busy polling to all NAPI drivers")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
Reported-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Tested-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:27:27 -05:00
David S. Miller
ceb980bc2c Merge branch 'liquidio-CN23XX-VF-support'
Raghu Vatsavayi says:

====================
liquidio CN23XX VF support

Following is the V6 patch series for adding VF support on
CN23XX devices. This version addressed:
1) Your concern for ordering of local variable declarations
   from longest to shortest line.
2) Removed module parameters max_vfs, num_queues_per_{p,v}f.
3) Minor changes for fixing new checkpatch script related
   errors on pre-existing driver.
4) Fixed compilation issues when CONFIG_PCI_IOV/CONFIG_PCI_ATS
   options are disabled.
5) Modified qualifiers for printing mac addresses with pM format.

I will post remaining VF patches soon after this patchseries is
applied. Please apply patches in the following order as some of
the patches depend on earlier patches.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:24:42 -05:00
Raghu Vatsavayi
97a2532660 liquidio CN23XX: fix for new check patch errors
New checkpatch script shows some errors with pre-existing
driver. This patch provides fix for those errors.

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>
2016-11-15 22:24:40 -05:00
Raghu Vatsavayi
50579d3d95 liquidio CN23XX: copyrights changes and alignment
Updated copyrights comments and also changed some other comments
alignments.

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>
2016-11-15 22:24:40 -05:00
Raghu Vatsavayi
763185a38b liquidio CN23XX: code cleanup
Cleaned up unnecessary comments and added some minor macros.

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>
2016-11-15 22:24:40 -05:00
Raghu Vatsavayi
515e752d2b liquidio CN23XX: device states
Cleaned up resource leaks during destroy resources by
introducing more device states.

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>
2016-11-15 22:24:40 -05:00
Raghu Vatsavayi
86dea55b9a liquidio CN23XX: VF related operations
Adds support for VF related operations like mac address vlan
and link 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>
2016-11-15 22:24:40 -05:00
Raghu Vatsavayi
5d65556beb liquidio CN23XX: mailbox interrupt processing
Adds support for mailbox interrupt processing of various
commands.

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>
2016-11-15 22:24:40 -05:00
Raghu Vatsavayi
8c978d0592 liquidio CN23XX: Mailbox support
Adds support for mailbox communication between PF and 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>
2016-11-15 22:24:40 -05:00
Raghu Vatsavayi
ca6139ffc6 liquidio CN23XX: sysfs VF config support
Adds sysfs based support for enabling or disabling VFs.

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>
2016-11-15 22:24:40 -05:00
Raghu Vatsavayi
d13520c7ca liquidio CN23XX: HW config for VF support
Adds support for configuring HW for creating VFs.

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>
2016-11-15 22:24:40 -05:00
Pablo Neira
73e2d5e34b udp: restore UDPlite many-cast delivery
Honor udptable parameter that is passed to __udp*_lib_mcast_deliver(),
otherwise udplite broadcast/multicast use the wrong table and it breaks.

Fixes: 2dc41cff75 ("udp: Use hash2 for long hash1 chains in __udp*_lib_mcast_deliver.")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:14:27 -05:00
David S. Miller
3418c6810e Merge branch 'amd-xgbe-next'
Tom Lendacky says:

====================
amd-xgbe: AMD XGBE driver updates 2016-11-14

This patch series addresses some minor issues found in the recently
accepted patch series for the AMD XGBE driver.

The following fixes are included in this driver update series:

- Fix how a mask is applied to a Clause 37 register value
- Fix some coccinelle identified warnings

This patch series is based on net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:12:58 -05:00
Lendacky, Thomas
8c5385cbb0 amd-xgbe: Fix up some coccinelle identified warnings
Fix up some warnings that were identified by coccinelle:

Clean up an if/else block that can look confusing since the same statement
is executed in an "else if" check and the final "else" statement.

Change a variable from unsigned int to int since it is used in an if
statement checking the value to be less than 0.

Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:12:57 -05:00
Lendacky, Thomas
e6fbd47add amd-xgbe: Fix mask appliciation for Clause 37 register
The application of a mask to clear an area of a clause 37 register value
was not properly applied. Update the code to do the proper application
of the mask.

Reported-by: Marion & Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:12:57 -05:00
David S. Miller
92547f2be9 Merge branch 'sun4i-emac-big-endian'
Michael Weiser says:

====================
sun4i-emac: Fixes for running a big-endian kernel on Cubieboard2

the following patches are what remains to be fixed in order to allow running a
big-endian kernel on the Cubieboard2.

The first patch fixes up endianness problems with DMA descriptors in
the stmmac driver preventing it from working correctly when runnning a
big-endian kernel.

The second patch adds the ability to enable diagnostic messages in the
sun4i-emac driver which were instrumental in finding the problem fixed
by patch number three: Endianness confusion caused by dual-purpose I/O
register usage in sun4i-emac.

All of these have been tested successfully on a Cubieboard2 DualCard.

Changes since v4:
- Rebased to current master
- Removed already applied patches to sunxi-mmc and sunxi-Kconfig

Changes since v3:
- Rebased sunxi-mmc patch against Ulf's mmc.git/next
- Changed Kconfig change to enable big-endian support only for sun7i
  devices

Changes since v2:
- Fixed typo in stmmac patch causing a build failure
- Added sun4i-emac patches

Changes since v1:
- Fixed checkpatch niggles
- Added respective Cc:s
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:05:55 -05:00
Michael Weiser
934d0048d0 net: ethernet: sun4i-emac: Read rxhdr in CPU byte-order
The EMAC EMAC_RX_IO_DATA_REG data register is dual-purpose: On one hand
it is used to move actual packet data off the wire. This will be in
wire-format and accepted as such by higher layers such as IP. Therefore
it is correctly read as-is (i.e. raw) using readsl.

On the other hand it provides metadata about incoming transfers to the
driver such as length and checksum validation status. This data is
little-endian, always and it is interpreted by the driver. Therefore it
needs to be swapped to CPU endianness to make sense to the driver. This
is already done for the "receive header" but not rxhdr.

Read rxhdr using readl in order for sun4i-emac to work correctly when
running a big-endian kernel.

Signed-off-by: Michael Weiser <michael.weiser@gmx.de>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:05:54 -05:00
Michael Weiser
b8ca3387fe net: ethernet: sun4i-emac: Allow to enable netif messages
sun4i-emac has the ability to print a number of diagnostic messages using
dev_dbg depending on message level settings implemented using netif_msg_*
macros. But there's no way to actually enable them.

Add the ability to switch diagnostic messages on using either a module
parameter debug or ethtool -s <netif> msglvl <flags>.

Signed-off-by: Michael Weiser <michael.weiser@gmx.de>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:05:54 -05:00
Michael Weiser
f8be0d78be net: ethernet: stmmac: change dma descriptors to __le32
The stmmac driver does not take into account the processor may be big
endian when writing the DMA descriptors. This causes the ethernet
interface not to be initialised correctly when running a big-endian
kernel. Change the descriptors for DMA to use __le32 and ensure they are
suitably swapped before writing. Tested successfully on the
Cubieboard2.

Signed-off-by: Michael Weiser <michael.weiser@gmx.de>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:05:54 -05:00
Florian Westphal
4780566784 dctcp: update cwnd on congestion event
draft-ietf-tcpm-dctcp-02 says:

... when the sender receives an indication of congestion
(ECE), the sender SHOULD update cwnd as follows:

         cwnd = cwnd * (1 - DCTCP.Alpha / 2)

So, lets do this and reduce cwnd more smoothly (and faster), as per
current congestion estimate.

Cc: Lawrence Brakmo <brakmo@fb.com>
Cc: Andrew Shewmaker <agshew@gmail.com>
Cc: Glenn Judd <glenn.judd@morganstanley.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 22:01:58 -05:00
Florian Fainelli
0fa1dfd6b9 net: bcm63xx_enet: Fix build failure with phy_ethtool_nway_reset
Introduced a typo making the driver no longer build, *sigh*.

Fixes: 42469bf5d9 ("net: bcm63xx_enet: Utilize phy_ethtool_nway_reset")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 21:56:25 -05:00
Bjorn Andersson
b9e718e950 remoteproc: Introduce Qualcomm ADSP PIL
The Qualcomm ADSP Peripheral Image Loader is used on a variety of
different Qualcomm platforms for loading firmware into and controlling
the Hexagon based ADSP.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2016-11-15 18:44:53 -08:00
Bjorn Andersson
f904e7245b dt-binding: remoteproc: Introduce ADSP loader binding
This document defines the binding for a component that loads firmware
and control the life cycle of the Qualcomm ADSP Hexagon core.

Acked-by: Rob Herring <robh@kernel.org>
Cc: Sarangdhar Joshi <spjoshi@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2016-11-15 18:43:12 -08:00
Alexander Kochetkov
d0e3f65b34 net: arc_emac: don't pass multicast packets to kernel in non-multicast mode
The patch disable capturing multicast packets when multicast mode
disabled for ethernet ('ifconfig eth0 -multicast'). In that case
no multicast packet will be passed to kernel.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 19:58:13 -05:00
Alexander Kochetkov
c7a4e3d8c0 net: arc_emac: annonce IFF_MULTICAST support
Multicast support was implemented by commit 775dd682e2
('arc_emac: implement promiscuous mode and multicast filtering').

It can be enabled explicity using 'ifconfig eth0 multicast'.
The patch is needed in order to remove explicit configuration
as most devices has multicast mode enabled by default.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 19:58:13 -05:00
David S. Miller
744dfcb1d9 Merge branch 'stmmac-ptp'
Giuseppe Cavallaro says:

====================
stmmac: fix PTP support

This subset of patches aim to fix the PTP support
for the stmmac and especially for 4.x chip series.
While setting PTP on an ST box with 4.00a Ethernet
core, the kernel panics due to a broken settings
of the descriptors. The patches review the
register configuration, the algo used for configuring
the protocol, the way to get the timestamp inside
the RX/TX descriptors and, in the end, the statistics
displayed by ethtool.

V2: RESEND all the patches adding the Acked-by.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 19:56:18 -05:00
Giuseppe CAVALLARO
ee112c12eb stmmac: fix PTP type ethtool stats
This patch fixes the ethtool stats for PTP frames; previous
version does not take care about some message types: i.e.
announce, management and signaling. It also provided a
broken statistic in case of "No PTP message received".

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Acked-by: Rayagond Kokatanur <rayagond@vayavyalabs.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 19:56:17 -05:00