Commit Graph

75941 Commits

Author SHA1 Message Date
Govindarajulu Varadarajan
322eaa06d5 enic: set DMA mask to 47 bit
In commit 624dbf55a3 ("driver/net: enic: Try DMA 64 first, then
failover to DMA") DMA mask was changed from 40 bits to 64 bits.
Hardware actually supports only 47 bits.

Fixes: 624dbf55a3 ("driver/net: enic: Try DMA 64 first, then failover to DMA")
Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-24 23:05:30 -04:00
Eric Biggers
af8d3c7c00 ppp: remove the PPPIOCDETACH ioctl
The PPPIOCDETACH ioctl effectively tries to "close" the given ppp file
before f_count has reached 0, which is fundamentally a bad idea.  It
does check 'f_count < 2', which excludes concurrent operations on the
file since they would only be possible with a shared fd table, in which
case each fdget() would take a file reference.  However, it fails to
account for the fact that even with 'f_count == 1' the file can still be
linked into epoll instances.  As reported by syzbot, this can trivially
be used to cause a use-after-free.

Yet, the only known user of PPPIOCDETACH is pppd versions older than
ppp-2.4.2, which was released almost 15 years ago (November 2003).
Also, PPPIOCDETACH apparently stopped working reliably at around the
same time, when the f_count check was added to the kernel, e.g. see
https://lkml.org/lkml/2002/12/31/83.  Also, the current 'f_count < 2'
check makes PPPIOCDETACH only work in single-threaded applications; it
always fails if called from a multithreaded application.

All pppd versions released in the last 15 years just close() the file
descriptor instead.

Therefore, instead of hacking around this bug by exporting epoll
internals to modules, and probably missing other related bugs, just
remove the PPPIOCDETACH ioctl and see if anyone actually notices.  Leave
a stub in place that prints a one-time warning and returns EINVAL.

Reported-by: syzbot+16363c99d4134717c05b@syzkaller.appspotmail.com
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: Guillaume Nault <g.nault@alphalink.fr>
Tested-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-24 22:55:07 -04:00
David S. Miller
90fed9c946 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:

====================
pull-request: bpf-next 2018-05-24

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Björn Töpel cleans up AF_XDP (removes rebind, explicit cache alignment from uapi, etc).

2) David Ahern adds mtu checks to bpf_ipv{4,6}_fib_lookup() helpers.

3) Jesper Dangaard Brouer adds bulking support to ndo_xdp_xmit.

4) Jiong Wang adds support for indirect and arithmetic shifts to NFP

5) Martin KaFai Lau cleans up BTF uapi and makes the btf_header extensible.

6) Mathieu Xhonneux adds an End.BPF action to seg6local with BPF helpers allowing
   to edit/grow/shrink a SRH and apply on a packet generic SRv6 actions.

7) Sandipan Das adds support for bpf2bpf function calls in ppc64 JIT.

8) Yonghong Song adds BPF_TASK_FD_QUERY command for introspection of tracing events.

9) other misc fixes from Gustavo A. R. Silva, Sirio Balmelli, John Fastabend, and Magnus Karlsson
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-24 22:20:51 -04:00
Thomas Falcon
2770a7984d ibmvnic: Introduce hard reset recovery
Introduce a recovery hard reset to handle reset failure as a result of
change of device context following a transport event, such as a
backing device failover or partition migration. These operations reset
the device context to its initial state. If this occurs during a reset,
any initialization commands are likely to fail with an invalid state
error as backing device firmware requests reinitialization.

When this happens, make one more attempt by performing a hard reset,
which frees any resources currently allocated and performs device
initialization. If a transport event occurs during a device reset, a
flag is set which will trigger a new hard reset following the
completionof the current reset event.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-24 22:19:26 -04:00
Thomas Falcon
06e43d7f9f ibmvnic: Set resetting state at earliest possible point
Set device resetting state at the earliest possible point: as soon as a
reset is successfully scheduled. The reset state is toggled off when
all resets have been processed to completion.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-24 22:19:26 -04:00
Thomas Falcon
8a348450a0 ibmvnic: Create separate initialization routine for resets
Instead of having one initialization routine for all cases, create
a separate, simpler function for standard initialization, such as during
device probe. Use the original initialization function to handle
device reset scenarios. The goal of this patch is to avoid having
a single, cluttered init function to handle all possible
scenarios.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-24 22:19:26 -04:00
Thomas Falcon
ab5ec33b9a ibmvnic: Handle error case when setting link state
If setting the link state is not successful, print a warning
with the resulting return code and return it to be handled
by the caller.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-24 22:19:26 -04:00
Thomas Falcon
17c8705838 ibmvnic: Return error code if init interrupted by transport event
If device init is interrupted by a failover, set the init return
code so that it can be checked and handled appropriately by the
init routine.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-24 22:19:26 -04:00
Thomas Falcon
9c4eaabd1b ibmvnic: Check CRQ command return codes
Check whether CRQ command is successful before awaiting a response
from the management partition. If the command was not successful, the
driver may hang waiting for a response that will never come.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-24 22:19:26 -04:00
Thomas Falcon
5153698e55 ibmvnic: Introduce active CRQ state
Introduce an "active" state for a IBM vNIC Command-Response Queue. A CRQ
is considered active once it has initialized or linked with its partner by
sending an initialization request and getting a successful response back
from the management partition.  Until this has happened, do not allow CRQ
commands to be sent other than the initialization request.

This change will avoid a protocol error in case of a device transport
event occurring during a initialization. When the driver receives a
transport event notification indicating that the backing hardware
has changed and needs reinitialization, any further commands other
than the initialization handshake with the VIOS management partition
will result in an invalid state error. Instead of sending a command
that will be returned with an error, print a warning and return an
error that will be handled by the caller.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-24 22:19:25 -04:00
Thomas Falcon
c3f2241547 ibmvnic: Mark NAPI flag as disabled when released
Set adapter NAPI state as disabled if they are removed. This will allow
them to be enabled again if reallocated in case of a hard reset.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-24 22:19:25 -04:00
YueHaibing
d624613e42 cxgb4: Check for kvzalloc allocation failure
t4_prep_fw doesn't check for card_fw pointer before store the read data,
which could lead to a NULL pointer dereference if kvzalloc failed.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-24 21:52:44 -04:00
Jesper Dangaard Brouer
735fc4054b xdp: change ndo_xdp_xmit API to support bulking
This patch change the API for ndo_xdp_xmit to support bulking
xdp_frames.

When kernel is compiled with CONFIG_RETPOLINE, XDP sees a huge slowdown.
Most of the slowdown is caused by DMA API indirect function calls, but
also the net_device->ndo_xdp_xmit() call.

Benchmarked patch with CONFIG_RETPOLINE, using xdp_redirect_map with
single flow/core test (CPU E5-1650 v4 @ 3.60GHz), showed
performance improved:
 for driver ixgbe: 6,042,682 pps -> 6,853,768 pps = +811,086 pps
 for driver i40e : 6,187,169 pps -> 6,724,519 pps = +537,350 pps

With frames avail as a bulk inside the driver ndo_xdp_xmit call,
further optimizations are possible, like bulk DMA-mapping for TX.

Testing without CONFIG_RETPOLINE show the same performance for
physical NIC drivers.

The virtual NIC driver tun sees a huge performance boost, as it can
avoid doing per frame producer locking, but instead amortize the
locking cost over the bulk.

V2: Fix compile errors reported by kbuild test robot <lkp@intel.com>
V4: Isolated ndo, driver changes and callers.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-05-24 18:36:15 -07:00
Yossi Kuperman
1dcbc01f73 net/mlx5: IPSec, Fix a race between concurrent sandbox QP commands
Sandbox QP Commands are retired in the order they are sent. Outstanding
commands are stored in a linked-list in the order they appear. Once a
response is received and the callback gets called, we pull the first
element off the pending list, assuming they correspond.

Sending a message and adding it to the pending list is not done atomically,
hence there is an opportunity for a race between concurrent requests.

Bind both send and add under a critical section.

Fixes: bebb23e6cb ("net/mlx5: Accel, Add IPSec acceleration interface")
Signed-off-by: Yossi Kuperman <yossiku@mellanox.com>
Signed-off-by: Adi Nissim <adin@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-05-24 14:40:40 -07:00
Eran Ben Elisha
902a545904 net/mlx5e: When RXFCS is set, add FCS data into checksum calculation
When RXFCS feature is enabled, the HW do not strip the FCS data,
however it is not present in the checksum calculated by the HW.

Fix that by manually calculating the FCS checksum and adding it to the SKB
checksum field.

Add helper function to find the FCS data for all SKB forms (linear,
one fragment or more).

Fixes: 102722fc68 ("net/mlx5e: Add support for RXFCS feature flag")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-05-24 14:40:39 -07:00
Huy Nguyen
ecdf2dadee net/mlx5e: Receive buffer support for DCBX
Add dcbnl's set/get buffer configuration callback that allows user to
set/get buffer size configuration and priority to buffer mapping.

By default, firmware controls receive buffer configuration and priority
of buffer mapping based on the changes in pfc settings. When set buffer
call back is triggered, the buffer configuration changes to manual mode.

The manual mode means mlx5 driver will adjust the buffer configuration
accordingly based on the changes in pfc settings.

ConnectX buffer stride is 128 Bytes. If the buffer size is not multiple
of 128, the buffer size will be rounded down to the nearest multiple of
128.

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-05-24 14:23:33 -07:00
Huy Nguyen
0696d60853 net/mlx5e: Receive buffer configuration
Add APIs for buffer configuration based on the changes in
pfc configuration, cable len, buffer size configuration,
and priority to buffer mapping.

Note that the xoff fomula is as below
  xoff = ((301+2.16 * len [m]) * speed [Gbps] + 2.72 MTU [B]
  xoff_threshold = buffer_size - xoff
  xon_threshold = xoff_threshold - MTU

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-05-24 14:23:33 -07:00
Huy Nguyen
50b4a3c236 net/mlx5: PPTB and PBMC register firmware command support
Add firmware command interface to read and write PPTB and PBMC
registers.

PPTB register enables mappings priority to a specific receive buffer.

PBMC registers enables changing the receive buffer's configuration such
as buffer size, xon/xoff thresholds, buffer's lossy property and
buffer's shared property.

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-05-24 14:23:33 -07:00
Huy Nguyen
2c81bfd5ae net/mlx5e: Move port speed code from en_ethtool.c to en/port.c
Move four below functions from en_ethtool.c to en/port.c. These
functions are used by both en_ethtool.c and en_main.c. Future code
can use these functions without ethtool link mode dependency.
  u32 mlx5e_port_ptys2speed(u32 eth_proto_oper);
  int mlx5e_port_linkspeed(struct mlx5_core_dev *mdev, u32 *speed);
  int mlx5e_port_max_linkspeed(struct mlx5_core_dev *mdev, u32 *speed);
  u32 mlx5e_port_speed2linkmodes(u32 speed);

Delete the speed field from table mlx5e_build_ptys2ethtool_map. This
table only keeps the mapping between the mlx5e link mode and
ethtool link mode. Add new table mlx5e_link_speed for translation
from mlx5e link mode to actual speed.

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-05-24 14:23:33 -07:00
Tom Lendacky
76cce0af85 amd-xgbe: Improve SFP 100Mbps auto-negotiation
After changing speed to 100Mbps as a result of auto-negotiation (AN),
some 10/100/1000Mbps SFPs indicate a successful link (no faults or loss
of signal), but cannot successfully transmit or receive data.  These
SFPs required an extra auto-negotiation (AN) after the speed change in
order to operate properly.  Add a quirk for these SFPs so that if the
outcome of the AN actually results in changing to a new speed, re-initiate
AN at that new speed.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:33:01 -04:00
Tom Lendacky
e722ec8237 amd-xgbe: Update the BelFuse quirk to support SGMII
Instead of using a quirk to make the BelFuse 1GBT-SFP06 part look like
a 1000baseX part, program the SFP PHY to support SGMII and 10/100/1000
baseT.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:33:01 -04:00
Tom Lendacky
418746298e amd-xgbe: Advertise FEC support with the KR re-driver
When a KR re-driver is present, indicate the FEC support is available
during auto-negotiation.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:33:01 -04:00
Tom Lendacky
eca282b841 amd-xgbe: Always attempt link training in KR mode
Link training is always attempted when in KR mode, but the code is
structured to check if link training has been enabled before attempting
to perform it.  Since that check will always be true, simplify the code
to always enable and start link training during KR auto-negotiation.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:33:00 -04:00
Tom Lendacky
01b5277fc9 amd-xgbe: Add ethtool show/set channels support
Add ethtool support to show and set the device channel configuration.
Changing the channel configuration will result in a device restart.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:33:00 -04:00
Tom Lendacky
2244753409 amd-xgbe: Prepare for ethtool set-channel support
In order to support being able to dynamically set/change the number of
Rx and Tx channels, update the code to:
 - Move alloc and free of device memory into callable functions
 - Move setting of the real number of Rx and Tx channels to device startup
 - Move mapping of the RSS channels to device startup

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:33:00 -04:00
Tom Lendacky
bab748de98 amd-xgbe: Add ethtool show/set ring parameter support
Add ethtool support to show and set the number of the Rx and Tx ring
descriptors.  Changing the ring configuration will result in a device
restart.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:33:00 -04:00
Tom Lendacky
53a1024abf amd-xgbe: Add ethtool support to retrieve SFP module info
Add support to get SFP module information using ethtool.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:33:00 -04:00
Tom Lendacky
67cea0c922 amd-xgbe: Remove field that indicates SFP diagnostic support
The driver currently sets an indication of whether the SFP supports, and
that the driver can obtain, diagnostics data.  This isn't currently used
by the driver and the logic to set this indicator is flawed because the
field is cleared each time the SFP is checked and only set when a new SFP
is detected.  Remove this field and the logic supporting it.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:33:00 -04:00
Tom Lendacky
0d2b5255ea amd-xgbe: Remove use of comm_owned field
The comm_owned field can hide logic where double locking is attempted
and prevent multiple threads for the same device from accessing the
mutex properly.  Remove the comm_owned field and use the mutex API
exclusively for gaining ownership.  The current driver has been audited
and is obtaining communications ownership properly.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:33:00 -04:00
Tom Lendacky
b93c3ab600 amd-xgbe: Read and save the port property registers during probe
Read and save the port property registers once during the device probe
and then use the saved values as they are needed.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:33:00 -04:00
Tom Lendacky
6c2799c11e amd-xgbe: Fix debug output of max channel counts
A debug output print statement uses the wrong variable to output the
maximum Rx channel count (cut and paste error, basically).  Fix the
statement to use the proper variable.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:33:00 -04:00
Ganesh Goudar
8156b0ba74 cxgb4: do L1 config when module is inserted
trigger an L1 configure operation when a transceiver module
is inserted in order to cause current "sticky" options like
Requested Forward Error Correction to be reapplied.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:00:56 -04:00
Ganesh Goudar
1d19023fa6 cxgb4: change the port capability bits definition
MDI Port Capabilities bit definitions were inconsistent with
regard to the MDI enum values. 2 bits used to define MDI in
the port capabilities are not really separable, it's a 2-bit
field with 4 different values. Change the port capability bit
definitions to be "AUTO" and "STRAIGHT" in order to get them
to line up with the enum's.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 16:00:56 -04:00
David S. Miller
5ee6ad201e For this round, we have various things all over the place, notably
* a fix for a race in aggregation, which I want to let
    bake for a bit longer before sending to stable
  * some new statistics (ACK RSSI, TXQ)
  * TXQ configuration
  * preparations for HE, particularly radiotap
  * replace confusing "country IE" by "country element" since it's
    not referring to Ireland
 
 Note that I merged net-next to get a fix from mac80211 that got
 there via net, to apply one patch that would otherwise conflict.
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Merge tag 'mac80211-next-for-davem-2018-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

For this round, we have various things all over the place, notably
 * a fix for a race in aggregation, which I want to let
   bake for a bit longer before sending to stable
 * some new statistics (ACK RSSI, TXQ)
 * TXQ configuration
 * preparations for HE, particularly radiotap
 * replace confusing "country IE" by "country element" since it's
   not referring to Ireland

Note that I merged net-next to get a fix from mac80211 that got
there via net, to apply one patch that would otherwise conflict.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 15:53:00 -04:00
Jack Morgenstein
d546b67cda net/mlx4: Fix irq-unsafe spinlock usage
spin_lock/unlock was used instead of spin_un/lock_irq
in a procedure used in process space, on a spinlock
which can be grabbed in an interrupt.

This caused the stack trace below to be displayed (on kernel
4.17.0-rc1 compiled with Lock Debugging enabled):

[  154.661474] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected
[  154.668909] 4.17.0-rc1-rdma_rc_mlx+ #3 Tainted: G          I
[  154.675856] -----------------------------------------------------
[  154.682706] modprobe/10159 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
[  154.690254] 00000000f3b0e495 (&(&qp_table->lock)->rlock){+.+.}, at: mlx4_qp_remove+0x20/0x50 [mlx4_core]
[  154.700927]
and this task is already holding:
[  154.707461] 0000000094373b5d (&(&cq->lock)->rlock/1){....}, at: destroy_qp_common+0x111/0x560 [mlx4_ib]
[  154.718028] which would create a new lock dependency:
[  154.723705]  (&(&cq->lock)->rlock/1){....} -> (&(&qp_table->lock)->rlock){+.+.}
[  154.731922]
but this new dependency connects a SOFTIRQ-irq-safe lock:
[  154.740798]  (&(&cq->lock)->rlock){..-.}
[  154.740800]
... which became SOFTIRQ-irq-safe at:
[  154.752163]   _raw_spin_lock_irqsave+0x3e/0x50
[  154.757163]   mlx4_ib_poll_cq+0x36/0x900 [mlx4_ib]
[  154.762554]   ipoib_tx_poll+0x4a/0xf0 [ib_ipoib]
...
to a SOFTIRQ-irq-unsafe lock:
[  154.815603]  (&(&qp_table->lock)->rlock){+.+.}
[  154.815604]
... which became SOFTIRQ-irq-unsafe at:
[  154.827718] ...
[  154.827720]   _raw_spin_lock+0x35/0x50
[  154.833912]   mlx4_qp_lookup+0x1e/0x50 [mlx4_core]
[  154.839302]   mlx4_flow_attach+0x3f/0x3d0 [mlx4_core]

Since mlx4_qp_lookup() is called only in process space, we can
simply replace the spin_un/lock calls with spin_un/lock_irq calls.

Fixes: 6dc06c08be ("net/mlx4: Fix the check in attaching steering rules")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 15:48:58 -04:00
Michal Vokáč
38222b1aac net: dsa: qca8k: Remove redundant parentheses
Fix warning reported by checkpatch.

Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 15:46:34 -04:00
Michal Vokáč
63a786a310 net: dsa: qca8k: Replace GPL boilerplate by SPDX
Replace the GPLv2 license boilerplate with the SPDX license identifier.

Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 15:46:25 -04:00
Michal Vokáč
9bb2289f90 net: dsa: qca8k: Allow overwriting CPU port setting
Implement adjust_link function that allows to overwrite default CPU port
setting using fixed-link device tree subnode.

Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 15:46:18 -04:00
Michal Vokáč
79a4ed4f0f net: dsa: qca8k: Force CPU port to its highest bandwidth
By default autonegotiation is enabled to configure MAC on all ports.
For the CPU port autonegotiation can not be used so we need to set
some sensible defaults manually.

This patch forces the default setting of the CPU port to 1000Mbps/full
duplex which is the chip maximum capability.

Also correct size of the bit field used to configure link speed.

Fixes: 6b93fb4648 ("net-next: dsa: add new driver for qca8xxx family")
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 15:46:18 -04:00
Michal Vokáč
eee1fe6476 net: dsa: qca8k: Enable RXMAC when bringing up a port
When a port is brought up/down do not enable/disable only the TXMAC
but the RXMAC as well. This is essential for the CPU port to work.

Fixes: 6b93fb4648 ("net-next: dsa: add new driver for qca8xxx family")
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 15:46:05 -04:00
Michal Vokáč
64cf81675a net: dsa: qca8k: Add support for QCA8334 switch
Add support for the four-port variant of the Qualcomm QCA833x switch.

Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 15:45:55 -04:00
Ganesh Goudar
038ed45bce cxgb4: Add new T6 device ids
Add 0x6088 and 0x6089 device ids for new T6 cards.

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 15:28:22 -04:00
Florian Fainelli
79fb218d97 net: phy: broadcom: Fix bcm_write_exp()
On newer PHYs, we need to select the expansion register to write with
setting bits [11:8] to 0xf. This was done correctly by bcm7xxx.c prior
to being migrated to generic code under bcm-phy-lib.c which
unfortunately used the older implementation from the BCM54xx days.

Fix this by creating an inline stub: bcm_write_exp_sel() which adds the
correct value (MII_BCM54XX_EXP_SEL_ER) and update both the Cygnus PHY
and BCM7xxx PHY drivers which require setting these bits.

broadcom.c is unchanged because some PHYs even use a different selector
method, so let them specify it directly (e.g: SerDes secondary selector).

Fixes: a1cba5613e ("net: phy: Add Broadcom phy library for common interfaces")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 15:27:01 -04:00
Florian Fainelli
733a969a7e net: phy: broadcom: Fix auxiliary control register reads
We are currently doing auxiliary control register reads with the shadow
register value 0b111 (0x7) which incidentally is also the selector value
that should be present in bits [2:0]. Fix this by using the appropriate
selector mask which is defined (MII_BCM54XX_AUXCTL_SHDWSEL_MASK).

This does not have a functional impact yet because we always access the
MII_BCM54XX_AUXCTL_SHDWSEL_MISC (0x7) register in the current code.
This might change at some point though.

Fixes: 5b4e290051 ("net: phy: broadcom: add bcm54xx_auxctl_read")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 15:18:00 -04:00
Colin Ian King
4f7f56b6b1 net/mlx4: fix spelling mistake: "Inrerface" -> "Interface" and rephrase message
Trivial fix to spelling mistake in mlx4_dbg debug message and also
change the phrasing of the message so that is is more readable

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:58:10 -04:00
Haiyang Zhang
273de02ae7 hv_netvsc: Add handlers for ethtool get/set msg level
The handlers for ethtool get/set msg level are missing from netvsc.
This patch adds them.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:55:00 -04:00
Nathan Fontenot
73f9d36440 ibmvnic: Only do H_EOI for mobility events
When enabling the sub-CRQ IRQ a previous update sent a H_EOI prior
to the enablement to clear any pending interrupts that may be present
across a partition migration. This fixed a firmware bug where a
migration could erroneously indicate that a H_EOI was pending.

The H_EOI should only be sent when enabling during a mobility
event though. Doing so at other time could wrong and can produce
extra driver output when IRQs are enabled when doing TX completion.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:54:11 -04:00
Colin Ian King
7c6f97475d net: vxge: fix spelling mistake in macro VXGE_HW_ERR_PRIVILAGED_OPEARATION
Rename VXGE_HW_ERR_PRIVILAGED_OPEARATION to VXGE_HW_ERR_PRIVILEGED_OPERATION
to fix spelling mistake.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:50:02 -04:00
Willem de Bruijn
8eea1ca82b gso: limit udp gso to egress-only virtual devices
Until the udp receive stack supports large packets (UDP GRO), GSO
packets must not loop from the egress to the ingress path.

Revert the change that added NETIF_F_GSO_UDP_L4 to various virtual
devices through NETIF_F_GSO_ENCAP_ALL as this included devices that
may loop packets, such as veth and macvlan.

Instead add it to specific devices that forward to another device's
egress path, bonding and team.

Fixes: 83aa025f53 ("udp: add gso support to virtual devices")
CC: Alexander Duyck <alexander.duyck@gmail.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:48:44 -04:00
Antoine Tenart
66ede1f9c9 net: phy: sfp: make the i2c-bus dt property mandatory
This patch makes the i2c-bus property mandatory when using a device
tree. If the sfp i2c bus isn't described it's impossible to guess the
protocol to use for a given module, and the sfp module would then not
work in most cases.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:34:27 -04:00
Antoine Tenart
a1f5d1f0df net: phy: sfp: warn the user when no tx_disable pin is available
In case no Tx disable pin is available the SFP modules will always be
emitting. This could be an issue when using modules using laser as their
light source as we would have no way to disable it when the fiber is
removed. This patch adds a warning when registering an SFP cage which do
not have its tx_disable pin wired or available.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:34:27 -04:00
Jason Wang
2f3ab6221e tuntap: correctly set SOCKWQ_ASYNC_NOSPACE
When link is down, writes to the device might fail with
-EIO. Userspace needs an indication when the status is resolved.  As a
fix, tun_net_open() attempts to wake up writers - but that is only
effective if SOCKWQ_ASYNC_NOSPACE has been set in the past. This is
not the case of vhost_net which only poll for EPOLLOUT after it meets
errors during sendmsg().

This patch fixes this by making sure SOCKWQ_ASYNC_NOSPACE is set when
socket is not writable or device is down to guarantee EPOLLOUT will be
raised in either tun_chr_poll() or tun_sock_write_space() after device
is up.

Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: Eric Dumazet <edumazet@google.com>
Fixes: 1bd4978a88 ("tun: honor IFF_UP in tun_get_user()")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:32:12 -04:00
Jakub Kicinski
51c1df83e3 nfp: assign vNIC id as phys_port_name of vNICs which are not ports
When NFP is modelled as a switch we assign phys_port_name to respective
port(representor )s:

 vNIC0 - | - PF port (pf%d)     MAC/PHY (p%d[s%d]) - |E==

In most cases there is only one vNIC for communication with the switch.
If there is more than one we need to be able to identify them.  Use %d
as phys_port_name of the vNICs.

We don't have to pass ID to nfp_net_debugfs_vnic_add() separately any
more.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:26:19 -04:00
Jakub Kicinski
290f54db31 nfp: use split in naming of PCIe PF ports
PCI PFs can host more than one logical endpoint.  In NFP terms
this means having more than one vNIC for PCIe PF.  The vNICs
are usually corresponding 1:1 to Ethernet ports.  In core NIC
we use the legacy idea of vNIC *being* the Ethernet port,
hence netdevs put pX(sY) in their phys_port_name, like Ethernet
ports would.  When ASIC ports are fully represented we need to
be able to name different PCIe PF ports, too.  Use a scheme
similar to Ethernet ports - pfXsY, for PCIe PF number X,
sub-port Y.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:26:19 -04:00
Jakub Kicinski
1f70036723 nfp: abm: force Ethternet port up
Current control firmware does not cater too well to multi-host
applications.  There is no way to check which hosts are up or
otherwise negotiate what the state of the external port (the
Ethernet port) should be.  Make sure the link is up when driver
loads, and don't take it down when Ethernet port netdev is
closed.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:26:19 -04:00
Jakub Kicinski
d05d902eda nfp: abm: spawn port netdevs
To configure buffering points we need full set of netdevs:

                              ASIC

 user netdev  -- | -- PCIe port   MAC port -- | --

Configuring egrees qdiscs on user netdev configures standard
Linux TC software qdiscs, configuring PCIe port qdiscs will
provide a way of setting ASIC queuing parameters for PCIe block.
MAC port netdev egress qdiscs correspond to ASIC MAC Traffic
Manager block.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:26:19 -04:00
Jakub Kicinski
4afa3af418 nfp: add devlink_eswitch_mode_set callback
Our previous apps all assumed to use only one eswitch mode (legacy
or switchdev) without the ability to change it.  ABM NIC will
want to support the switch so plumb devlink_eswitch_mode_set through.
The devlink_eswitch_mode_set is expected to spawn representors and
potentially devlink ports so it's called under big devlink lock and
pf->lock.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:26:19 -04:00
Jakub Kicinski
634c6b7a85 nfp: add app pointer to port representors
nfp_apps can currently associate their structures with vNICs but
not representors.  Add app priv pointer to representors as well.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:26:18 -04:00
Jakub Kicinski
cc54dc2804 nfp: abm: create project-specific vNIC structure
ABM NIC requires more complex vNIC handling, allocate
per-vNIC structure.  Find out RX queue base and PCI PF id.
There will be multiple PFs sharing the same MAC port, therefore
the MAC address assigned to the vNIC must be looked up in the
HWInfo database.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:26:18 -04:00
Jakub Kicinski
c4c8f39a57 nfp: abm: add initial active buffer management NIC skeleton
Add a very rudimentary active buffer management NIC support.
For now it's like a core NIC without SR-IOV support.  Next
commits will extend its functionality.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:26:18 -04:00
Jakub Kicinski
b586c77b3c nfp: core: allow 4-byte aligned accesses to Memory Units
Current code doesn't enforce length requirements on 32bit accesses
with action NFP_CPP_ACTION_RW to memory units, but if the access
is only aligned to 4 bytes as well we will fall into the explicit
access case and error out.  Such accesses are correct, allow them
by lowering the width earlier.

While at it use a switch statement to improve readability.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:26:18 -04:00
Jakub Kicinski
a0d163f432 nfp: add shared buffer configuration
Allow app FW to advertise its shared buffer pool information.
Use the per-PF mailbox to configure them from devlink.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:26:18 -04:00
Jakub Kicinski
0c693323a1 nfp: add support for per-PCI PF mailbox
When working with devlink-related functionality for locking reasons
it's easier to create a new mailbox per-PCI PF device than try to
use one of the netdev/vNIC mailboxes.

Define new mailbox structure and resolve its symbol during probe.
For forward compatibility allow silent truncation of mailbox command
data.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:26:18 -04:00
Jakub Kicinski
8f6196f63c nfp: move rtsym helpers to pf code
nfp_net_pf_rtsym_read_optional() and nfp_net_pf_map_rtsym() are not
really related to networking code.  Move them to the PF code and
remove the net from their names.  They will soon be needed by code
outside of nfp_net_main.c anyway.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 14:26:18 -04:00
Jason Wang
3d62b2a0db virtio-net: fix leaking page for gso packet during mergeable XDP
We need to drop refcnt to xdp_page if we see a gso packet. Otherwise
it will be leaked. Fixing this by moving the check of gso packet above
the linearizing logic. While at it, remove useless comment as well.

Cc: John Fastabend <john.fastabend@gmail.com>
Fixes: 72979a6c35 ("virtio_net: xdp, add slowpath case for non contiguous buffers")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 13:36:19 -04:00
Jason Wang
850e088d5b virtio-net: correctly check num_buf during err path
If we successfully linearize the packet, num_buf will be set to zero
which may confuse error handling path which assumes num_buf is at
least 1 and this can lead the code tries to pop the descriptor of next
buffer. Fixing this by checking num_buf against 1 before decreasing.

Fixes: 4941d472bf ("virtio-net: do not reset during XDP set")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 13:36:19 -04:00
Jason Wang
5d458a13dd virtio-net: correctly transmit XDP buff after linearizing
We should not go for the error path after successfully transmitting a
XDP buffer after linearizing. Since the error path may try to pop and
drop next packet and increase the drop counters. Fixing this by simply
drop the refcnt of original page and go for xmit path.

Fixes: 72979a6c35 ("virtio_net: xdp, add slowpath case for non contiguous buffers")
Cc: John Fastabend <john.fastabend@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 13:36:19 -04:00
Jason Wang
6890418bbb virtio-net: correctly redirect linearized packet
After a linearized packet was redirected by XDP, we should not go for
the err path which will try to pop buffers for the next packet and
increase the drop counter. Fixing this by just drop the page refcnt
for the original page.

Fixes: 186b3c998c ("virtio-net: support XDP_REDIRECT")
Reported-by: David Ahern <dsahern@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 13:36:19 -04:00
David S. Miller
419fc888e5 A handful of fixes:
* hwsim radio dump wasn't working for the first radio
  * mesh was updating statistics incorrectly
  * a netlink message allocation was possibly too short
  * wiphy name limit was still too long
  * in certain cases regdb query could find a NULL pointer
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Merge tag 'mac80211-for-davem-2018-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
A handful of fixes:
 * hwsim radio dump wasn't working for the first radio
 * mesh was updating statistics incorrectly
 * a netlink message allocation was possibly too short
 * wiphy name limit was still too long
 * in certain cases regdb query could find a NULL pointer
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23 11:50:05 -04:00
Ilan Peer
d4e36e5554 mac80211: Support adding duration for prepare_tx() callback
There are specific cases, such as SAE authentication exchange, that
might require long duration to complete. For such cases, add support
for indicating to the driver the required duration of the prepare_tx()
operation, so the driver would still be able to complete the frame
exchange.

Currently, indicate the duration only for SAE authentication exchange,
as SAE authentication can take up to 2000 msec (as defined in IEEE
P802.11-REVmd D1.0 p. 3504).

As the patch modified the prepare_tx() callback API, also modify
the relevant code in iwlwifi.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-05-23 11:06:10 +02:00
Johannes Berg
dd8070bff2 Merge remote-tracking branch 'net-next/master' into mac80211-next
Bring in net-next which had pulled in net, so I have the changes
from mac80211 and can apply a patch that would otherwise conflict.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-05-23 11:05:59 +02:00
Sudarsana Reddy Kalluru
d25b859ccd qede: Add support for populating ethernet TLVs.
This patch adds callbacks for providing the ethernet protocol driver TLVs.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 23:29:54 -04:00
Sudarsana Reddy Kalluru
59ccf86fe6 qed: Add driver infrastucture for handling mfw requests.
MFW requests the TLVs in interrupt context. Extracting of the required
data from upper layers and populating of the TLVs require process context.
The patch adds work-queues for processing the tlv requests. It also adds
the implementation for requesting the tlv values from appropriate protocol
driver.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 23:29:54 -04:00
Sudarsana Reddy Kalluru
77a509e4f6 qed: Add support for processing iscsi tlv request.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 23:29:54 -04:00
Sudarsana Reddy Kalluru
f240b68822 qed: Add support for processing fcoe tlv request.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 23:29:53 -04:00
Sudarsana Reddy Kalluru
2528c38993 qed: Add support for tlv request processing.
The patch adds driver support for processing TLV requests/repsonses
from the mfw and upper driver layers respectively. The implementation
reads the requested TLVs from the shared memory, requests the values
from upper layer drivers, populates this info (TLVs) shared memory and
notifies MFW about the TLV values.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 23:29:53 -04:00
Sudarsana Reddy Kalluru
dd006921d6 qed: Add MFW interfaces for TLV request support.
The patch adds required management firmware (MFW) interfaces such as
mailbox commands, TLV types etc.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 23:29:53 -04:00
David S. Miller
9c803cfd5f Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2018-05-22

This series contains updates to i40e only.

Jake provides all the changes in this series starting with making it
consistent in how we approach the bit lock.  Fixed the reporting of the
VEB statistics and the queue statistics to always return every queue
even if it is not currently in use.  Use WARN_ONCE() so that the first
time we end up with an incorrect size we will dump a stack trace and a
message to help highlight the issue early in testing.  Folded the fixed
string prefix into the stat string definition.  Instead of using a
separate char *p pointer when copying strings, use the data pointer
directly.  Added code comments for several of the statistic functions to
better explain the number and ordering of statistics.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 15:45:06 -04:00
Bo Chen
d7db318651 pcnet32: add an error handling path in pcnet32_probe_pci()
Make sure to invoke pci_disable_device() when errors occur in
pcnet32_probe_pci().

Signed-off-by: Bo Chen <chenbo@pdx.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 15:40:15 -04:00
Shahed Shaikh
fdd13dd350 qed: Fix mask for physical address in ILT entry
ILT entry requires 12 bit right shifted physical address.
Existing mask for ILT entry of physical address i.e.
ILT_ENTRY_PHY_ADDR_MASK is not sufficient to handle 64bit
address because upper 8 bits of 64 bit address were getting
masked which resulted in completer abort error on
PCIe bus due to invalid address.

Fix that mask to handle 64bit physical address.

Fixes: fe56b9e6a8 ("qed: Add module with basic common support")
Signed-off-by: Shahed Shaikh <shahed.shaikh@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 15:32:55 -04:00
David Ahern
5a15a1b07c mlxsw: spectrum_router: Add support for route append
Handle append for gateway based routes. Dev-only multipath routes will
be handled by a follow on patch.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 14:44:18 -04:00
Fabio Estevam
1f508124e9 net: fec: Add a SPDX identifier
Currently there is no license information in the header of
this file.

The MODULE_LICENSE field contains ("GPL"), which means
GNU Public License v2 or later, so add a corresponding
SPDX license identifier.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 13:42:05 -04:00
Fabio Estevam
9fcca5effc net: fec: ptp: Switch to SPDX identifier
Adopt the SPDX license identifier headers to ease license compliance
management.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 13:42:04 -04:00
Jacob Keller
3f76bdb437 i40e: use the more traditional 'i' loop variable
Since we no longer use i as an array index for the data variable,
replace the use of 'j' with 'i' so that we match the general loop
variable name.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-05-22 08:37:06 -07:00
Jacob Keller
ec29bbf8ab i40e: add function doc headers for ethtool stats functions
Add documentation for the i40e_get_stats_count, i40e_get_stat_strings
and i40e_get_ethtool_stats explaining that the number and ordering of
statistics must remain constant for a given netdevice.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-05-22 08:37:06 -07:00
Jacob Keller
e08696dcd9 i40e: update data pointer directly when copying to the buffer
A future patch is going to add a helper function i40e_add_ethtool_stats
that will help lower the amount of boiler plate code in the
i40e_get_ethtool_stats function.

This conversion will take place over many patches, and the helper
function will work by directly updating a reference to the data pointer.

Since this would not work combined with the current method of accessing
data like an array, update all the code that copies stats into the data
buffer to use direct updates to the pointer instead of array accesses.

This will prevent incorrect stat updates for patches in between the
conversion.

Similarly, when copying strings, we used a separate char *p pointer.
Instead, use the data pointer directly as it's already a (u8 *) type
which is the same size.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-05-22 08:37:06 -07:00
Jacob Keller
bf1c39e640 i40e: fold prefix strings directly into stat names
We always prefix these stats with a fixed string, so just fold this
prefix into the stat string definition. This preparatory work will make
it easier to implement a helper function to copy stats and strings into
the supplied buffers in a future patch.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-05-22 08:37:06 -07:00
Jacob Keller
9b10df596b i40e: use WARN_ONCE to replace the commented BUG_ON size check
We don't really want to use BUG_ON here since that would completely
crash the kernel, thus the reason we commented it out. We *can't* use
BUILD_BUG_ON because at least now (a) the sizes aren't constant (we are
fixing this) and (b) not all compilers are smart enough to understand
that "p - data" is a constant.

Instead, just use a WARN_ONCE so that the first time we end up with an
incorrect size we will dump a stack trace and a message, hopefully
highlighting the issues early in testing.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-05-22 08:37:06 -07:00
Jacob Keller
019b9cd44d i40e: split i40e_get_strings() into smaller functions
Split the statistic strings and private flags strings into their own
separate functions to aid code readability.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-05-22 08:37:06 -07:00
Jacob Keller
b831236509 i40e: always return all queue stat strings
The ethtool API for obtaining device statistics is not intended to allow
runtime changes in the number of statistics reported. It may *appear*
this way, as there is an ability to request the number of stats using
ethtool_get_set_count(). However, it is expected that this must always
return the same value for invocations of the same device.

If we don't satisfy this contract, and allow the number of stats to
change during run time, we could cause invalid memory accesses or report
the stat strings incorrectly. This is because the API for obtaining
stats is to (1) get the size, (2) get the strings and finally (3) get
the stats. Since these are each separate ethtool op commands, it is not
possible to maintain consistency by holding the RTNL lock over the whole
operation. This results in the potential for a race condition to occur
where the size changed between any of the 3 calls.

Avoid this issue by requiring that we always return the same value for
a given device. We can check any values which remain constant for the
life of the device, but must not report different sizes depending on
runtime attributes.

This patch specifically fixes the queue statistics to always return
every queue even if it's not currently in use.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-05-22 08:37:06 -07:00
Jacob Keller
9955d4940e i40e: always return VEB stat strings
The ethtool API for obtaining device statistics is not intended to allow
runtime changes in the number of statistics reported. It may *appear*
this way, as there is an ability to request the number of stats using
ethtool_get_set_count(). However, it is expected that this must always
return the same value for invocations of the same device.

If we don't satisfy this contract, and allow the number of stats to
change during run time, we could cause invalid memory accesses or report
the stat strings incorrectly. This is because the API for obtaining
stats is to (1) get the size, (2) get the strings and finally (3) get
the stats. Since these are each separate ethtool op commands, it is not
possible to maintain consistency by holding the RTNL lock over the whole
operation. This results in the potential for a race condition to occur
where the size changed between any of the 3 calls.

Avoid this issue by requiring that we always return the same value for
a given device. We can check any values which remain constant for the
life of the device, but must not report different sizes depending on
runtime attributes.

This patch specifically fixes the VEB statistics strings to always be
reported. Other issues will be fixed in future patches.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-05-22 08:37:06 -07:00
Jacob Keller
bdf2752305 i40e: free skb after clearing lock in ptp_stop
Use the same logic to free the skb after clearing the Tx timestamp bit
lock in i40e_ptp_stop as we use in the other locations. It is not as
important here since we are not racing against a future Tx timestamp
request (as we are disabling PTP at this point). However it is good to
be consistent in how we approach the bit lock so that future callers
don't copy the old anti-pattern.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-05-22 08:37:06 -07:00
Andrew Zaborowski
fed4825096 mac80211_hwsim: Fix radio dump for radio idx 0
Since 6335698e24 the radio with idx of 0
will not get dumped in HWSIM_CMD_GET_RADIO because of the last_idx
checks.  Offset cb->args[0] by 1 similarly to what is done in nl80211.c.

Fixes: 6335698e24 ("mac80211_hwsim: add generation count for netlink dump operation")
Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-05-22 10:24:17 +02:00
Florian Fainelli
c79c385044 ti: ethernet: davinci: Fix cast to int warnings
Now that we can compile test this driver on 64-bit hosts, we get some
warnings about how a pointer/address is written/read to/from a register
(sw_token). Fix this by doing the appropriate conversions, we cannot
possibly have the driver work on 64-bit hosts the way the tokens are
managed though, since the registers being written to a 32-bit only.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-21 16:17:10 -04:00
Florian Fainelli
5a04e8f81a net: ethernet: davinci_emac: Fix printing of base address
Use %pa which is the correct formatter to print a physical address,
instead of %p which is just a pointer.

Fixes: a6286ee630 ("net: Add TI DaVinci EMAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-21 16:17:10 -04:00
Florian Fainelli
bf2ce3fdf3 net: ethernet: ti: cpsw: Fix cpsw_add_ch_strings() printk format
When building on a 64-bit host we will get the following warning:

drivers/net/ethernet/ti/cpsw.c: In function 'cpsw_add_ch_strings':
drivers/net/ethernet/ti/cpsw.c:1284:19: warning: format '%d' expects
argument of type 'int', but argument 5 has type 'long unsigned int'
[-Wformat=]
     "%s DMA chan %d: %s", rx_dir ? "Rx" : "Tx",
                  ~^
                  %ld

Fix this by using an %ld format and casting to long.

Fixes: e05107e6b7 ("net: ethernet: ti: cpsw: add multi queue support")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-21 16:17:10 -04:00
Florian Fainelli
ea5ec9fc9e net: ethernet: ti: cpts: Fix timestamp print
On 64-bit hosts we will get the following warning:

drivers/net/ethernet/ti/cpts.c: In function 'cpts_overflow_check':
drivers/net/ethernet/ti/cpts.c:297:11: warning: format '%lld' expects
argument of type 'long long int', but argument 3 has type
'__kernel_time_t {aka long int}' [-Wformat=]
  pr_debug("cpts overflow check at %lld.%09lu\n", ts.tv_sec,
ts.tv_nsec);

Fix this by using an appropriate casting that works on all bit sizes.

Fixes: a5c79c26e1 ("ptp: cpts: convert to the 64 bit get/set time methods.")
Fixes: 87c0e764d4 ("cpts: introduce time stamping code and a PTP hardware clock.")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-21 16:17:10 -04:00
Florian Fainelli
b4eb739368 ti: ethernet: cpdma: Use correct format for genpool_*
Now that we can compile davinci_cpdma.c on 64-bit hosts, we can see that
the format used for printing a size_t type is incorrect, use %zd
accordingly.

Fixes: aeec302104 ("net: ethernet: ti: cpdma: remove used_desc counter")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-21 16:17:09 -04:00
David S. Miller
6f6e434aa2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
S390 bpf_jit.S is removed in net-next and had changes in 'net',
since that code isn't used any more take the removal.

TLS data structures split the TX and RX components in 'net-next',
put the new struct members from the bug fix in 'net' into the RX
part.

The 'net-next' tree had some reworking of how the ERSPAN code works in
the GRE tunneling code, overlapping with a one-line headroom
calculation fix in 'net'.

Overlapping changes in __sock_map_ctx_update_elem(), keep the bits
that read the prog members via READ_ONCE() into local variables
before using them.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-21 16:01:54 -04:00
Ganesh Goudar
a6076fcd18 cxgb4: copy the length of cpl_tx_pkt_core to fw_wr
immdlen field of FW_ETH_TX_PKT_WR is filled in a wrong way,
we must copy the length of all the cpls encapsulated in fw
work request. In the xmit path we missed adding the length
of CPL_TX_PKT_CORE but we added the length of WR_HDR and it
worked because WR_HDR and CPL_TX_PKT_CORE are of same length.
Add the length of cpl_tx_pkt_core not WR_HDR's. This also
fixes the lso cpl errors for udp tunnels

Fixes: d0a1299c6b ("cxgb4: add support for vxlan segmentation offload")
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-21 12:16:23 -04:00