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4 years agonet/smc: remove obsolete link state DELETING
Karsten Graul [Thu, 30 Apr 2020 13:55:51 +0000 (15:55 +0200)]
net/smc: remove obsolete link state DELETING

The connection layer in af_smc.c is now using the new LLC flow
framework, which made the link state DELETING obsolete. Remove the state
and the respective helpers.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: remove handling of CONFIRM_RKEY_CONTINUE
Karsten Graul [Thu, 30 Apr 2020 13:55:50 +0000 (15:55 +0200)]
net/smc: remove handling of CONFIRM_RKEY_CONTINUE

The new SMC-R multiple link support will support a maximum of 3 links,
and one CONFIRM_RKEY LLC message can transport 3 rkeys of an rmb buffer.
There is no need for the LLC message type CONFIRM_RKEY_CONTINUE which is
needed when more than 3 rkeys per rmb buffer needs to be exchanged.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: adapt SMC remote DELETE_RKEY processing to use the LLC flow
Karsten Graul [Thu, 30 Apr 2020 13:55:49 +0000 (15:55 +0200)]
net/smc: adapt SMC remote DELETE_RKEY processing to use the LLC flow

Use the LLC flow framework for the processing of DELETE_RKEY messages
that were received from the peer.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: adapt SMC remote CONFIRM_RKEY processing to use the LLC flow
Karsten Graul [Thu, 30 Apr 2020 13:55:48 +0000 (15:55 +0200)]
net/smc: adapt SMC remote CONFIRM_RKEY processing to use the LLC flow

Use the LLC flow framework for the processing of CONFIRM_RKEY messages
that were received from the peer.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: new smc_rtoken_set functions for multiple link support
Karsten Graul [Thu, 30 Apr 2020 13:55:47 +0000 (15:55 +0200)]
net/smc: new smc_rtoken_set functions for multiple link support

Introduce smc_rtoken_set() to set the rtoken for a new link to an
existing rmb whose rtoken is given, and smc_rtoken_set2() to set an
rtoken for a new link whose link_id is given.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: move the TEST_LINK response processing into event handler
Karsten Graul [Thu, 30 Apr 2020 13:55:46 +0000 (15:55 +0200)]
net/smc: move the TEST_LINK response processing into event handler

Get rid of the extra function and move the two-liner for the TEST_LINK
response processing into the event handler function.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: multiple link support and LLC flow for smc_llc_do_delete_rkey
Karsten Graul [Thu, 30 Apr 2020 13:55:45 +0000 (15:55 +0200)]
net/smc: multiple link support and LLC flow for smc_llc_do_delete_rkey

Adapt smc_llc_do_delete_rkey() to use the LLC flow and support multiple
links when deleting the rkeys for rmb buffers at the peer.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: multiple link support and LLC flow for smc_llc_do_confirm_rkey
Karsten Graul [Thu, 30 Apr 2020 13:55:44 +0000 (15:55 +0200)]
net/smc: multiple link support and LLC flow for smc_llc_do_confirm_rkey

Adapt smc_llc_do_confirm_rkey() to use the LLC flow and support the
rkeys of multiple links when the CONFIRM_RKEY LLC message is build.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: adapt SMC client code to use the LLC flow
Karsten Graul [Thu, 30 Apr 2020 13:55:43 +0000 (15:55 +0200)]
net/smc: adapt SMC client code to use the LLC flow

Change the code that processes the SMC client part of connection
establishment to use the LLC flow framework (CONFIRM_LINK request
messages).

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: adapt SMC server code to use the LLC flow
Karsten Graul [Thu, 30 Apr 2020 13:55:42 +0000 (15:55 +0200)]
net/smc: adapt SMC server code to use the LLC flow

Change the code that processes the SMC server part of connection
establishment to use the LLC flow framework (CONFIRM_LINK response
messages).

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: add logic to evaluate CONFIRM_LINK messages to LLC layer
Karsten Graul [Thu, 30 Apr 2020 13:55:41 +0000 (15:55 +0200)]
net/smc: add logic to evaluate CONFIRM_LINK messages to LLC layer

Introduce smc_llc_eval_conf_link() to evaluate the CONFIRM_LINK message
contents. This implements this logic at the LLC layer. The function will
be used by af_smc.c to process the received LLC layer messages.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: introduce link group type
Karsten Graul [Thu, 30 Apr 2020 13:55:40 +0000 (15:55 +0200)]
net/smc: introduce link group type

Add a type field to the link group which reflects the current link group
redundancy state.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: enqueue all received LLC messages
Karsten Graul [Thu, 30 Apr 2020 13:55:39 +0000 (15:55 +0200)]
net/smc: enqueue all received LLC messages

Introduce smc_llc_enqueue() to enqueue LLC messages, and adapt
smc_llc_rx_handler() to enqueue all received LLC messages.
smc_llc_enqueue() also makes it possible to enqueue LLC messages from
local code.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: add event-based llc_flow framework
Karsten Graul [Thu, 30 Apr 2020 13:55:38 +0000 (15:55 +0200)]
net/smc: add event-based llc_flow framework

The new framework allows to start specific types of LLC control flows,
protects active flows and makes it possible to wait for flows to finish
before starting a new flow.
This mechanism is used for the LLC control layer to model flows like
'add link' or 'delete link' which need to send/receive several LLC
messages and are not allowed to get interrupted by the wrong type of
messages.
'Add link' or 'Delete link' messages arriving in the middle of a flow
are delayed and processed when the current flow finished.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/faraday: Fix unnecessary check in ftmac100_probe()
Tang Bin [Thu, 30 Apr 2020 12:15:31 +0000 (20:15 +0800)]
net/faraday: Fix unnecessary check in ftmac100_probe()

The function ftmac100_probe() is only called with an openfirmware
platform device. Therefore there is no need to check that the passed
in device is NULL.

Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agorionet: Fix use correct return type for ndo_start_xmit()
Yunjian Wang [Thu, 30 Apr 2020 11:26:40 +0000 (19:26 +0800)]
rionet: Fix use correct return type for ndo_start_xmit()

The method ndo_start_xmit() returns a value of type netdev_tx_t. Fix
the ndo function to use the correct type.

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: caif: Fix use correct return type for ndo_start_xmit()
Yunjian Wang [Thu, 30 Apr 2020 10:16:16 +0000 (18:16 +0800)]
net: caif: Fix use correct return type for ndo_start_xmit()

The method ndo_start_xmit() returns a value of type netdev_tx_t. Fix
the ndo function to use the correct type.

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'net-phy-mdio-add-IPQ40xx-MDIO-support'
David S. Miller [Thu, 30 Apr 2020 19:11:14 +0000 (12:11 -0700)]
Merge branch 'net-phy-mdio-add-IPQ40xx-MDIO-support'

Robert Marko says:

====================
net: phy: mdio: add IPQ40xx MDIO support

This patch series provides support for the IPQ40xx built-in MDIO interface.
Included are driver, devicetree bindings for it and devicetree node.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoARM: dts: qcom: ipq4019: add MDIO node
Robert Marko [Thu, 30 Apr 2020 09:07:07 +0000 (11:07 +0200)]
ARM: dts: qcom: ipq4019: add MDIO node

This patch adds the necessary MDIO interface node
to the Qualcomm IPQ4019 DTSI.

Built-in QCA8337N switch is managed using it,
and since we have a driver for it lets add it.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodt-bindings: add Qualcomm IPQ4019 MDIO bindings
Robert Marko [Thu, 30 Apr 2020 09:07:06 +0000 (11:07 +0200)]
dt-bindings: add Qualcomm IPQ4019 MDIO bindings

This patch adds the binding document for the IPQ40xx MDIO driver.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: phy: mdio: add IPQ4019 MDIO driver
Robert Marko [Thu, 30 Apr 2020 09:07:05 +0000 (11:07 +0200)]
net: phy: mdio: add IPQ4019 MDIO driver

This patch adds the driver for the MDIO interface
inside of Qualcomm IPQ40xx series SoC-s.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agohinic: Use ARRAY_SIZE for nic_vf_cmd_msg_handler
Zou Wei [Thu, 30 Apr 2020 01:51:31 +0000 (09:51 +0800)]
hinic: Use ARRAY_SIZE for nic_vf_cmd_msg_handler

fix coccinelle warning, use ARRAY_SIZE

drivers/net/ethernet/huawei/hinic/hinic_sriov.c:713:43-44: WARNING: Use ARRAY_SIZE

v1-->v2:
   remove cmd_number

v2-->v3:
   preserve the reverse christmas tree ordering of local variables

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agohinic: make a bunch of functions static
YueHaibing [Thu, 30 Apr 2020 01:32:45 +0000 (09:32 +0800)]
hinic: make a bunch of functions static

These fucntions is used only in hinic_sriov.c,
so make them static to fix sparse warnings.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'net-bcmgenet-add-support-for-Wake-on-Filter'
David S. Miller [Wed, 29 Apr 2020 23:55:22 +0000 (16:55 -0700)]
Merge branch 'net-bcmgenet-add-support-for-Wake-on-Filter'

Doug Berger says:

====================
net: bcmgenet: add support for Wake on Filter

Changes in v2:
Corrected Signed-off-by for commit 3/7.

This commit set adds support for waking from 'standby' using a
Rx Network Flow Classification filter specified with ethtool.

The first two commits are bug fixes that should be applied to the
stable branches, but are included in this patch set to reduce merge
conflicts that might occur if not applied before the other commits
in this set.

The next commit consolidates WoL clock managment as a part of the
overall WoL configuration.

The next commit restores a set of functions that were removed from
the driver just prior to the 4.9 kernel release.

The following commit relocates the functions in the file to prevent
the need for additional forward declarations.

Next, support for the Rx Network Flow Classification interface of
ethtool is added.

Finally, support for the WAKE_FILTER wol method is added.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: bcmgenet: add WAKE_FILTER support
Doug Berger [Wed, 29 Apr 2020 20:02:06 +0000 (13:02 -0700)]
net: bcmgenet: add WAKE_FILTER support

This commit enables support for the WAKE_FILTER method of Wake on
LAN for the GENET driver. The method can be enabled by adding 'f'
to the interface 'wol' setting specified by ethtool.

Rx network flow rules can be specified using ethtool. Rules that
define a flow-type with the RX_CLS_FLOW_WAKE action (i.e. -2) can
wake the system from the 'standby' power state when the WAKE_FILTER
WoL method is enabled.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: bcmgenet: add support for ethtool rxnfc flows
Doug Berger [Wed, 29 Apr 2020 20:02:05 +0000 (13:02 -0700)]
net: bcmgenet: add support for ethtool rxnfc flows

This commit enables driver support for ethtool commands of this form:
ethtool -N|-U|--config-nfc|--config-ntuple devname
    flow-type ether|ip4
    [src xx:yy:zz:aa:bb:cc [m xx:yy:zz:aa:bb:cc]]
    [dst xx:yy:zz:aa:bb:cc [m xx:yy:zz:aa:bb:cc]] [proto N [m N]]
    [src-ip x.x.x.x [m x.x.x.x]] [dst-ip x.x.x.x [m x.x.x.x]] [tos N [m N]]
    [l4proto N [m N]] [src-port N [m N]] [dst-port N [m N]] [spi N [m N]]
    [l4data N [m N]] [vlan-etype N [m N]] [vlan N [m N]]
    [dst-mac xx:yy:zz:aa:bb:cc [m xx:yy:zz:aa:bb:cc]] [action 0] [loc N] |
    delete N

Since there is only one Rx Ring in this implementation action 0 behaves no
differently from not specifying a rule.

The rules can be seen with ethtool commands of this form:
ethtool -n|-u|--show-nfc|--show-ntuple devname [rule N]

Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: bcmgenet: code movement
Doug Berger [Wed, 29 Apr 2020 20:02:04 +0000 (13:02 -0700)]
net: bcmgenet: code movement

The Hardware Filter Block code will be used by ethtool functions
when defining flow types so this commit moves the functions in the
file to prevent the need for prototype declarations.

This is broken out to facilitate review.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoRevert "net: bcmgenet: remove unused function in bcmgenet.c"
Doug Berger [Wed, 29 Apr 2020 20:02:03 +0000 (13:02 -0700)]
Revert "net: bcmgenet: remove unused function in bcmgenet.c"

This reverts commit e2072600a24161b7ddcfb26814f69f5fbc8ef85a.

This commit restores the previous implementation of Hardware Filter
Block functions to the file for use in subsequent commits.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: bcmgenet: move clk_wol management to bcmgenet_wol
Doug Berger [Wed, 29 Apr 2020 20:02:02 +0000 (13:02 -0700)]
net: bcmgenet: move clk_wol management to bcmgenet_wol

The GENET_POWER_WOL_MAGIC power up and power down code configures
the device for WoL when suspending and disables the WoL logic when
resuming. It makes sense that this code should also manage the WoL
clocking.

This commit consolidates the logic and moves it earlier in the
resume sequence.

Since the clock is now only enabled if WoL is successfully entered
the wol_active flag is introduced to track that state to keep the
clock enables and disables balanced in case a suspend is aborted.
The MPD_EN hardware bit can't be used because it can be cleared
when the MAC is reset by a deep sleep.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: bcmgenet: Fix WoL with password after deep sleep
Doug Berger [Wed, 29 Apr 2020 20:02:01 +0000 (13:02 -0700)]
net: bcmgenet: Fix WoL with password after deep sleep

Broadcom STB chips support a deep sleep mode where all register contents
are lost. Because we were stashing the MagicPacket password into some of
these registers a suspend into that deep sleep then a resumption would
not lead to being able to wake-up from MagicPacket with password again.

Fix this by keeping a software copy of the password and program it
during suspend.

Fixes: c51de7f3976b ("net: bcmgenet: add Wake-on-LAN support code")
Suggested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: bcmgenet: set Rx mode before starting netif
Doug Berger [Wed, 29 Apr 2020 20:02:00 +0000 (13:02 -0700)]
net: bcmgenet: set Rx mode before starting netif

This commit explicitly calls the bcmgenet_set_rx_mode() function when
the network interface is started. This function is normally called by
ndo_set_rx_mode when the flags are changed, but apparently not when
the driver is suspended and resumed.

This change ensures that address filtering or promiscuous mode are
properly restored by the driver after the MAC may have been reset.

Fixes: b6e978e50444 ("net: bcmgenet: add suspend/resume callbacks")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
David S. Miller [Wed, 29 Apr 2020 21:14:44 +0000 (14:14 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next

Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

The following patchset contains Netfilter updates for nf-next:

1) Add IPS_HW_OFFLOAD status bit, from Bodong Wang.

2) Remove 128-bit limit on the set element data area, rise it
   to 64 bytes.

3) Report EOPNOTSUPP for unsupported NAT types and flags.

4) Set up nft_nat flags from the control plane path.

5) Add helper functions to set up the nf_nat_range2 structure.

6) Add netmap support for nft_nat.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'net-smc-preparations-for-SMC-R-link-failover'
David S. Miller [Wed, 29 Apr 2020 19:26:33 +0000 (12:26 -0700)]
Merge branch 'net-smc-preparations-for-SMC-R-link-failover'

Karsten Graul says:

====================
net/smc: preparations for SMC-R link failover

This patch series prepares the SMC code for the implementation of SMC-R link
failover capabilities which are still missing to reach full compliance with
RFC 7609.
The code changes are separated into 65 patches which together form the new
functionality. I tried to create meaningful patches which allow to follow the
implementation.

Question: how to handle the remaining 52 patches? All of them are needed for
link failover to work and should make it into the same merge window.
Can I send them all together?

The SMC-R implementation will transparently make use of the link failover
feature when matching RoCE devices are available, no special setup is required.
All RoCE devices with the same PNET ID as the TCP device (hardware-defined or
user-defined via the smc_pnet tool) are candidates to get used to form a link
in a link group. When at least 2 RoCE devices are available on both
communication endpoints then a symmetric link group is formed, meaning the link
group has 2 independent links. If one RoCE device goes down then all connections
on this link are moved to the surviving link. Upon recovery of the failing
device or availability of a new one, the symmetric link group will be restored.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: move llc layer related init and clear into smc_llc.c
Karsten Graul [Wed, 29 Apr 2020 15:10:49 +0000 (17:10 +0200)]
net/smc: move llc layer related init and clear into smc_llc.c

Introduce smc_llc_lgr_init() and smc_llc_lgr_clear() to implement all
llc layer specific initialization and cleanup in module smc_llc.c.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: use mutex instead of rwlock_t to protect buffers
Karsten Graul [Wed, 29 Apr 2020 15:10:48 +0000 (17:10 +0200)]
net/smc: use mutex instead of rwlock_t to protect buffers

The locks for sndbufs and rmbs are never used from atomic context. Using
a mutex for these locks will allow to nest locks with other mutexes.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: process llc responses in tasklet context
Karsten Graul [Wed, 29 Apr 2020 15:10:47 +0000 (17:10 +0200)]
net/smc: process llc responses in tasklet context

When llc responses are received then possible waiters for this response
are to be notified. This can be done in tasklet context, without to
use a work in the llc work queue. Move all code that handles llc
responses into smc_llc_rx_response().

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: use worker to process incoming llc messages
Karsten Graul [Wed, 29 Apr 2020 15:10:46 +0000 (17:10 +0200)]
net/smc: use worker to process incoming llc messages

Incoming llc messages are processed in irq tasklet context, and
a worker is used to send outgoing messages. The worker is needed
because getting a send buffer could result in a wait for a free buffer.

To make sure all incoming llc messages are processed in a serialized way
introduce an event queue and create a new queue entry for each message
which is queued to this event queue. A new worker processes the event
queue entries in order.
And remove the use of a separate worker to send outgoing llc messages
because the messages are processed in worker context already.
With this event queue the serialized llc_wq work queue is obsolete,
remove it.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: simplify link deactivation
Karsten Graul [Wed, 29 Apr 2020 15:10:45 +0000 (17:10 +0200)]
net/smc: simplify link deactivation

Cancel the testlink worker during link clear processing and remove the
extra function smc_llc_link_inactive().

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: move testlink work to system work queue
Karsten Graul [Wed, 29 Apr 2020 15:10:44 +0000 (17:10 +0200)]
net/smc: move testlink work to system work queue

The testlink work waits for a response to the testlink request and
blocks the single threaded llc_wq. This type of work does not have to be
serialized and can be moved to the system work queue.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: add new link state and related helpers
Karsten Graul [Wed, 29 Apr 2020 15:10:43 +0000 (17:10 +0200)]
net/smc: add new link state and related helpers

Before a link can be reused it must have been cleared. Lowest current
link state is INACTIVE, which does not mean that the link is already
cleared.
Add a new state UNUSED that is set when the link is cleared and can be
reused.
Add helper smc_llc_usable_link() to find an active link in a link group,
and smc_link_usable() to determine if a link is usable.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: multi-link support for smc_rmb_rtoken_handling()
Karsten Graul [Wed, 29 Apr 2020 15:10:42 +0000 (17:10 +0200)]
net/smc: multi-link support for smc_rmb_rtoken_handling()

Extend smc_rmb_rtoken_handling() and smc_rtoken_delete() to support
multiple links.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: convert static link ID instances to support multiple links
Karsten Graul [Wed, 29 Apr 2020 15:10:41 +0000 (17:10 +0200)]
net/smc: convert static link ID instances to support multiple links

As a preparation for the support of multiple links remove the usage of
a static link id (SMC_SINGLE_LINK) and allow dynamic link ids.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: convert static link ID to dynamic references
Karsten Graul [Wed, 29 Apr 2020 15:10:40 +0000 (17:10 +0200)]
net/smc: convert static link ID to dynamic references

As a preparation for the support of multiple links remove the usage of
a static link id (SMC_SINGLE_LINK) and allow dynamic link ids.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: introduce link_idx for link group array
Karsten Graul [Wed, 29 Apr 2020 15:10:39 +0000 (17:10 +0200)]
net/smc: introduce link_idx for link group array

The link_id is the index of the link in the array of the link group.
When a link in the array is reused for a new link, a different unique
link_id should be used, otherwise the index in the array could collide
with the previous link at this array position.
Use a new variable link_idx as array index, and make link_id an
increasing unique id value.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: separate function for link initialization
Karsten Graul [Wed, 29 Apr 2020 15:10:38 +0000 (17:10 +0200)]
net/smc: separate function for link initialization

Move the initialization of a new link into its own function, separate
from smc_lgr_create, to allow more than one link per link group.
Do an extra check if the IB device initialization was successful, and
reset the link state if any error occurs during smcr_link_init().
And rename two existing functions to use the prefix smcr_ to indicate
that they belong to the SMC-R code path.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/smc: rework pnet table to support SMC-R failover
Karsten Graul [Wed, 29 Apr 2020 15:10:37 +0000 (17:10 +0200)]
net/smc: rework pnet table to support SMC-R failover

The pnet table stored pnet ids in the smc device structures. When a
device is going down its smc device structure is freed, and when the
device is brought online again it no longer has a pnet id set.
Rework the pnet table implementation to store the device name with their
assigned pnet id and apply the pnet id to devices when they are
registered.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoRevert "net: ethernet: fec: Prevent MII event after MII_SPEED write"
David S. Miller [Wed, 29 Apr 2020 19:15:42 +0000 (12:15 -0700)]
Revert "net: ethernet: fec: Prevent MII event after MII_SPEED write"

This reverts commit 790ab249b55d75fdb427b92f81964cd7cb525eec.

This change needs more work.

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoila: remove unused inline function ila_addr_is_ila
YueHaibing [Wed, 29 Apr 2020 13:25:30 +0000 (21:25 +0800)]
ila: remove unused inline function ila_addr_is_ila

There's no callers in-tree anymore since commit 84287bb32856 ("ila: add
checksum neutral map auto").

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hsr: remove unused inline functions
YueHaibing [Wed, 29 Apr 2020 13:24:30 +0000 (21:24 +0800)]
net: hsr: remove unused inline functions

There's no callers in-tree anymore.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonetpoll: Fix use correct return type for ndo_start_xmit()
Yunjian Wang [Wed, 29 Apr 2020 10:20:58 +0000 (18:20 +0800)]
netpoll: Fix use correct return type for ndo_start_xmit()

The method ndo_start_xmit() returns a value of type netdev_tx_t. Fix
the ndo function to use the correct type.

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoptp: ptp_ines: convert to devm_platform_ioremap_resource
Wei Yongjun [Wed, 29 Apr 2020 07:58:20 +0000 (07:58 +0000)]
ptp: ptp_ines: convert to devm_platform_ioremap_resource

Use the helper function that wraps the calls to platform_get_resource()
and devm_ioremap_resource() together.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: adds support for reading module eeprom info
Yonglong Liu [Wed, 29 Apr 2020 03:46:24 +0000 (11:46 +0800)]
net: hns3: adds support for reading module eeprom info

This patch adds support for reading the optical module eeprom
info via "ethtool -m".

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'net-ReST-convert'
David S. Miller [Tue, 28 Apr 2020 21:40:29 +0000 (14:40 -0700)]
Merge branch 'net-ReST-convert'

Mauro Carvalho Chehab says:

====================
net: manually convert files to ReST format - part 1

There are very few documents upstream that aren't converted upstream.

This series convert part of the networking text files into ReST.
It is part of a bigger set of patches, which were split on parts,
in order to make reviewing task easier.

The full series (including those ones) are at:

https://git.linuxtv.org/mchehab/experimental.git/log/?h=net-docs

And the documents, converted to HTML via the building system
are at:

https://www.infradead.org/~mchehab/kernel_docs/networking/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert kcm.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:53 +0000 (00:01 +0200)]
docs: networking: convert kcm.txt to ReST

- add SPDX header;
- adjust titles and chapters, adding proper markups;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert ipvs-sysctl.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:52 +0000 (00:01 +0200)]
docs: networking: convert ipvs-sysctl.txt to ReST

- add SPDX header;
- add a document title;
- mark lists as such;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert ipvlan.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:51 +0000 (00:01 +0200)]
docs: networking: convert ipvlan.txt to ReST

- add SPDX header;
- adjust titles and chapters, adding proper markups;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert ipv6.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:50 +0000 (00:01 +0200)]
docs: networking: convert ipv6.txt to ReST

Not much to be done here:

- add SPDX header;
- add a document title;
- mark a literal as such, in order to avoid a warning;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert ip-sysctl.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:49 +0000 (00:01 +0200)]
docs: networking: convert ip-sysctl.txt to ReST

- add SPDX header;
- adjust titles and chapters, adding proper markups;
- mark code blocks and literals as such;
- mark lists as such;
- mark tables as such;
- use footnote markup;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert ipsec.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:48 +0000 (00:01 +0200)]
docs: networking: convert ipsec.txt to ReST

Not much to be done here:

- add SPDX header;
- add a document title;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert iphase.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:47 +0000 (00:01 +0200)]
docs: networking: convert iphase.txt to ReST

- add SPDX header;
- adjust title using the proper markup;
- mark code blocks and literals as such;
- mark tables as such;
- mark lists as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert ip_dynaddr.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:46 +0000 (00:01 +0200)]
docs: networking: convert ip_dynaddr.txt to ReST

- add SPDX header;
- adjust title markup;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert ipddp.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:45 +0000 (00:01 +0200)]
docs: networking: convert ipddp.txt to ReST

Not much to be done here:

- add SPDX header;
- use a document title from existing text;
- adjust a chapter markup;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert ila.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:44 +0000 (00:01 +0200)]
docs: networking: convert ila.txt to ReST

- add SPDX header;
- adjust title markup;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert hinic.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:43 +0000 (00:01 +0200)]
docs: networking: convert hinic.txt to ReST

Not much to be done here:

- add SPDX header;
- adjust titles and chapters, adding proper markups;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert gtp.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:42 +0000 (00:01 +0200)]
docs: networking: convert gtp.txt to ReST

- add SPDX header;
- adjust titles and chapters, adding proper markups;
- add notes markups;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert gen_stats.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:41 +0000 (00:01 +0200)]
docs: networking: convert gen_stats.txt to ReST

- add SPDX header;
- mark code blocks and literals as such;
- mark tables as such;
- mark lists as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert generic_netlink.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:40 +0000 (00:01 +0200)]
docs: networking: convert generic_netlink.txt to ReST

Not much to be done here:
- add SPDX header;
- add a document title;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert generic-hdlc.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:39 +0000 (00:01 +0200)]
docs: networking: convert generic-hdlc.txt to ReST

- add SPDX header;
- adjust title markup;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert framerelay.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:38 +0000 (00:01 +0200)]
docs: networking: convert framerelay.txt to ReST

- add SPDX header;
- add a document title;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert fore200e.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:37 +0000 (00:01 +0200)]
docs: networking: convert fore200e.txt to ReST

- add SPDX header;
- adjust title markup;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert filter.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:36 +0000 (00:01 +0200)]
docs: networking: convert filter.txt to ReST

- add SPDX header;
- adjust title markup;
- mark code blocks and literals as such;
- use footnote markup;
- mark tables as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert fib_trie.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:35 +0000 (00:01 +0200)]
docs: networking: convert fib_trie.txt to ReST

- add SPDX header;
- adjust title markup;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert eql.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:34 +0000 (00:01 +0200)]
docs: networking: convert eql.txt to ReST

- add SPDX header;
- add a document title;
- adjust titles and chapters, adding proper markups;
- mark code blocks and literals as such;
- mark tables as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert driver.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:33 +0000 (00:01 +0200)]
docs: networking: convert driver.txt to ReST

- add SPDX header;
- add a document title;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert dns_resolver.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:32 +0000 (00:01 +0200)]
docs: networking: convert dns_resolver.txt to ReST

- add SPDX header;
- adjust titles and chapters, adding proper markups;
- comment out text-only TOC from html/pdf output;

- mark code blocks and literals as such;

- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert defza.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:31 +0000 (00:01 +0200)]
docs: networking: convert defza.txt to ReST

Not much to be done here:

- add SPDX header;
- add a document title;
- use :field: markup for the version number;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert decnet.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:30 +0000 (00:01 +0200)]
docs: networking: convert decnet.txt to ReST

- add SPDX header;
- adjust titles and chapters, adding proper markups;
- mark lists as such;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert dctcp.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:29 +0000 (00:01 +0200)]
docs: networking: convert dctcp.txt to ReST

- add SPDX header;
- adjust title markup;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert dccp.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:28 +0000 (00:01 +0200)]
docs: networking: convert dccp.txt to ReST

- add SPDX header;
- adjust title markup;
- comment out text-only TOC from html/pdf output;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert cxacru.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:27 +0000 (00:01 +0200)]
docs: networking: convert cxacru.txt to ReST

- add SPDX header;
- add a document title;
- mark code blocks and literals as such;
- mark lists as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert cops.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:26 +0000 (00:01 +0200)]
docs: networking: convert cops.txt to ReST

- add SPDX header;
- adjust titles and chapters, adding proper markups;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert cdc_mbim.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:25 +0000 (00:01 +0200)]
docs: networking: convert cdc_mbim.txt to ReST

- add SPDX header;
- mark code blocks and literals as such;
- use :field: markup;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert bonding.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:24 +0000 (00:01 +0200)]
docs: networking: convert bonding.txt to ReST

- add SPDX header;
- adjust titles and chapters, adding proper markups;
- comment out text-only TOC from html/pdf output;
- mark code blocks and literals as such;
- mark tables as such;
- add notes markups;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert baycom.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:23 +0000 (00:01 +0200)]
docs: networking: convert baycom.txt to ReST

- add SPDX header;
- adjust titles and chapters, adding proper markups;
- mark code blocks and literals as such;
- mark tables as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert ax25.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:22 +0000 (00:01 +0200)]
docs: networking: convert ax25.txt to ReST

There isn't much to be done here. Just:

- add SPDX header;
- add a document title.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert atm.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:21 +0000 (00:01 +0200)]
docs: networking: convert atm.txt to ReST

There isn't much to be done here. Just:

- add SPDX header;
- add a document title.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert arcnet.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:20 +0000 (00:01 +0200)]
docs: networking: convert arcnet.txt to ReST

- add SPDX header;
- use document title markup;
- add notes markups;
- mark code blocks and literals as such;
- mark tables as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert arcnet-hardware.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:19 +0000 (00:01 +0200)]
docs: networking: convert arcnet-hardware.txt to ReST

- add SPDX header;
- add document title markup;
- add notes markups;
- mark tables as such;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert altera_tse.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:18 +0000 (00:01 +0200)]
docs: networking: convert altera_tse.txt to ReST

- add SPDX header;
- use copyright symbol;
- adjust titles and chapters, adding proper markups;
- mark lists as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert 6pack.txt to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:17 +0000 (00:01 +0200)]
docs: networking: convert 6pack.txt to ReST

- add SPDX header;
- use title markups;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodocs: networking: convert caif files to ReST
Mauro Carvalho Chehab [Mon, 27 Apr 2020 22:01:16 +0000 (00:01 +0200)]
docs: networking: convert caif files to ReST

There are two text files for caif, plus one already converted
file.

Convert the two remaining ones to ReST, create a new index.rst
file for CAIF, adding it to the main networking documentation
index.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: ethernet: fec: Prevent MII event after MII_SPEED write
Andrew Lunn [Tue, 28 Apr 2020 17:58:33 +0000 (19:58 +0200)]
net: ethernet: fec: Prevent MII event after MII_SPEED write

The change to polled IO for MDIO completion assumes that MII events
are only generated for MDIO transactions. However on some SoCs writing
to the MII_SPEED register can also trigger an MII event. As a result,
the next MDIO read has a pending MII event, and immediately reads the
data registers before it contains useful data. When the read does
complete, another MII event is posted, which results in the next read
also going wrong, and the cycle continues.

By writing 0 to the MII_DATA register before writing to the speed
register, this MII event for the MII_SPEED is suppressed, and polled
IO works as expected.

Fixes: 29ae6bd1b0d8 ("net: ethernet: fec: Replace interrupt driven MDIO with polled IO")
Reported-by: Andy Duan <fugang.duan@nxp.com>
Suggested-by: Andy Duan <fugang.duan@nxp.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodpaa2-eth: Use proper division helper in dpaa2_dbg_ch_show
Nathan Chancellor [Tue, 28 Apr 2020 17:42:22 +0000 (10:42 -0700)]
dpaa2-eth: Use proper division helper in dpaa2_dbg_ch_show

When building arm32 allmodconfig:

ERROR: modpost: "__aeabi_uldivmod"
[drivers/net/ethernet/freescale/dpaa2/fsl-dpaa2-eth.ko] undefined!

frames and cdan are both of type __u64 (unsigned long long) so we need
to use div64_u64 to avoid this issues.

Fixes: 460fd830dd9d ("dpaa2-eth: add channel stat to debugfs")
Link: https://github.com/ClangBuiltLinux/linux/issues/1012
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reported-by: kernelci.org bot <bot@kernelci.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: phy: bcm54140: Make a bunch of functions static
ChenTao [Tue, 28 Apr 2020 01:48:04 +0000 (09:48 +0800)]
net: phy: bcm54140: Make a bunch of functions static

Fix the following warning:

drivers/net/phy/bcm54140.c:663:5: warning:
symbol 'bcm54140_did_interrupt' was not declared. Should it be static?
drivers/net/phy/bcm54140.c:672:5: warning:
symbol 'bcm54140_ack_intr' was not declared. Should it be static?
drivers/net/phy/bcm54140.c:684:5: warning:
symbol 'bcm54140_config_intr' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: ChenTao <chentao107@huawei.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'kselftest-add-fixture-parameters'
David S. Miller [Tue, 28 Apr 2020 20:30:44 +0000 (13:30 -0700)]
Merge branch 'kselftest-add-fixture-parameters'

Jakub Kicinski says:

====================
kselftest: add fixture parameters

This set is an attempt to make running tests for different
sets of data easier. The direct motivation is the tls
test which we'd like to run for TLS 1.2 and TLS 1.3,
but currently there is no easy way to invoke the same
tests with different parameters.

Tested all users of kselftest_harness.h.

Dave, would it be possible to take these via net-next?
It seems we're failing to get Shuah's attention.

v2:
 - don't run tests by fixture
 - don't pass params as an explicit argument

v3:
 - go back to the orginal implementation with an extra
   parameter, and running by fixture (Kees);
 - add LIST_APPEND helper (Kees);
 - add a dot between fixture and param name (Kees);
 - rename the params to variants (Tim);

v4:
 - whitespace fixes.

v5 (Kees):
 - move a comment;
 - remove a temporary variable;
 - reword the commit message on patch 4.

v6:
 - resend for net-next.

v1: https://lore.kernel.org/netdev/20200313031752.2332565-1-kuba@kernel.org/
v2: https://lore.kernel.org/netdev/20200314005501.2446494-1-kuba@kernel.org/
v3: https://lore.kernel.org/netdev/20200316225647.3129354-1-kuba@kernel.org/
v4: https://lore.kernel.org/netdev/20200317010419.3268916-1-kuba@kernel.org/
v5: https://lore.kernel.org/netdev/20200318010153.40797-1-kuba@kernel.org/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoselftests: tls: run all tests for TLS 1.2 and TLS 1.3
Jakub Kicinski [Tue, 28 Apr 2020 01:03:51 +0000 (18:03 -0700)]
selftests: tls: run all tests for TLS 1.2 and TLS 1.3

TLS 1.2 and TLS 1.3 differ in the implementation.
Use fixture parameters to run all tests for both
versions, and remove the one-off TLS 1.2 test.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agokselftest: add fixture variants
Jakub Kicinski [Tue, 28 Apr 2020 01:03:50 +0000 (18:03 -0700)]
kselftest: add fixture variants

Allow users to build parameterized variants of fixtures.

If fixtures want variants, they call FIXTURE_VARIANT() to declare
the structure to fill for each variant. Each fixture will be re-run
for each of the variants defined by calling FIXTURE_VARIANT_ADD()
with the differing parameters initializing the structure.

Since tests are being re-run, additional initialization (steps,
no_print) is also added.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agokselftest: run tests by fixture
Jakub Kicinski [Tue, 28 Apr 2020 01:03:49 +0000 (18:03 -0700)]
kselftest: run tests by fixture

Now that all tests have a fixture object move from a global
list of tests to a list of tests per fixture.

Order of tests may change as we will now group and run test
fixture by fixture, rather than in declaration order.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agokselftest: create fixture objects
Jakub Kicinski [Tue, 28 Apr 2020 01:03:48 +0000 (18:03 -0700)]
kselftest: create fixture objects

Grouping tests by fixture will allow us to parametrize
test runs. Create full objects for fixtures.

Add a "global" fixture for tests without a fixture.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agokselftest: factor out list manipulation to a helper
Jakub Kicinski [Tue, 28 Apr 2020 01:03:47 +0000 (18:03 -0700)]
kselftest: factor out list manipulation to a helper

Kees suggest to factor out the list append code to a macro,
since following commits need it, which leads to code duplication.

Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>