Commit Graph

916521 Commits

Author SHA1 Message Date
Mauro Carvalho Chehab
40e79150c1 docs: networking: convert lapb-module.txt to ReST
- add SPDX header;
- adjust title markup;
- 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>
2020-04-30 12:56:35 -07:00
Mauro Carvalho Chehab
10ebb22137 docs: networking: convert l2tp.txt to ReST
- add SPDX header;
- add a document title;
- 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>
2020-04-30 12:56:35 -07:00
David S. Miller
9f04960660 Merge branch 'inet_diag-add-cgroup-attribute-and-filter'
Dmitry Yakunin says:

====================
inet_diag: add cgroup attribute and filter

This patch series extends inet diag with cgroup v2 ID attribute and
filter. Which allows investigate sockets on per cgroup basis. Patch for
ss is already sent to iproute2-next mailing list.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:54:02 -07:00
Dmitry Yakunin
b1f3e43dbf inet_diag: add support for cgroup filter
This patch adds ability to filter sockets based on cgroup v2 ID.
Such filter is helpful in ss utility for filtering sockets by
cgroup pathname.

Signed-off-by: Dmitry Yakunin <zeil@yandex-team.ru>
Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:54:02 -07:00
Dmitry Yakunin
6e3a401fc8 inet_diag: add cgroup id attribute
This patch adds cgroup v2 ID to common inet diag message attributes.
Cgroup v2 ID is kernfs ID (ino or ino+gen). This attribute allows filter
inet diag output by cgroup ID obtained by name_to_handle_at() syscall.
When net_cls or net_prio cgroup is activated this ID is equal to 1 (root
cgroup ID) for newly created sockets.

Some notes about this ID:

1) gets initialized in socket() syscall
2) incoming socket gets ID from listening socket
   (not during accept() syscall)
3) not changed when process get moved to another cgroup
4) can point to deleted cgroup (refcounting)

v2:
  - use CONFIG_SOCK_CGROUP_DATA instead if CONFIG_CGROUPS

v3:
  - fix attr size by using nla_total_size_64bit() (Eric Dumazet)
  - more detailed commit message (Konstantin Khlebnikov)

Signed-off-by: Dmitry Yakunin <zeil@yandex-team.ru>
Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Acked-By: Tejun Heo <tj@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:54:01 -07:00
David S. Miller
8a769c65bb Merge branch 'stmmac-intel-Fixes-and-cleanups-after-dwmac-intel-split'
Andy Shevchenko says:

====================
stmmac: intel: Fixes and cleanups after dwmac-intel split

Seems the split of dwmac-intel didn't go well and on top of that new
functionality in the driver has not been properly tested.

Patch 1 fixes a nasty kernel crash due to missed error handling.
Patches 2 and 3 fix the incorrect split (clock and PCI bar handling).

Patch 4 converts driver to use new PCI IRQ allocation API.

The rest is a set of clean ups that may have been done in the initial
submission.

Series has been tested on couple of Elkhart Lake platforms with different
behaviour of ethernet hardware.

Changelog v3:
- added the cover letter (David)
- appended separate fix as a first patch
- marked patches 2 and 3 with Fixes tag
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:50:16 -07:00
Andy Shevchenko
29e0c2f39f stmmac: intel: Place object in the Makefile according to the order
Follow the order for the platform drivers, i.e. generic object are going first.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:50:16 -07:00
Andy Shevchenko
ccacb703b0 stmmac: intel: Fix indentation to put on one line affected code
There is no competition to get more LOCs into the kernel, and driver can look
better and have improved readability without those additional line breaks.

While at it, shorten info structures that they are all PCI, at the end it's
a PCI driver for Intel hardware.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:50:15 -07:00
Andy Shevchenko
d5383b0376 stmmac: intel: Eliminate useless conditions and variables
There are useless conditions like

	func()
	{
		...
		int ret;
		...
		ret = foo();
		if (ret)
			return ret;

		return 0;
	}

which may be replaced with direct return statement, what we have done here.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:50:15 -07:00
Andy Shevchenko
52c1f79484 stmmac: intel: Convert to use pci_alloc_irq_vectors() API
pci_enable_msi() is deprecated API, thus, switch to modern
pci_alloc_irq_vectors().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:50:15 -07:00
Andy Shevchenko
e578f043ff stmmac: intel: Remove unnecessary loop for PCI BARs
Copy'n'paste without thinking is not a good idea and in this case it brought
unnecessary loop over PCI BAR resources which was needed to workaround one of
STMicro RVP boards. Remove unnecessary loops from Intel driver.

Fixes: 58da0cfa6c ("net: stmmac: create dwmac-intel.c to contain all Intel platform")
Cc: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:50:15 -07:00
Andy Shevchenko
09f012e64e stmmac: intel: Fix clock handling on error and remove paths
clk_prepare_enable() might fail, we have to check its returned value.
Besides that we have to call clk_disable_unprepare() on the error and
remove paths. Do above in the dwmac-intel driver.

While at it, remove leftover in stmmac_pci and remove unneeded condition
for NULL-aware clk_unregister_fixed_rate() call.

Fixes: 58da0cfa6c ("net: stmmac: create dwmac-intel.c to contain all Intel platform")
Cc: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:50:15 -07:00
Andy Shevchenko
801eb05018 stmmac: intel: Fix kernel crash due to wrong error path
Unfortunately sometimes ->probe() may fail. The commit b9663b7ca6
("net: stmmac: Enable SERDES power up/down sequence")
messed up with error handling and thus:

[   12.811311] ------------[ cut here ]------------
[   12.811993] kernel BUG at net/core/dev.c:9937!

Fix this by properly crafted error path.

Fixes: b9663b7ca6 ("net: stmmac: Enable SERDES power up/down sequence")
Cc: Voon Weifeng <weifeng.voon@intel.com>
Cc: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:50:15 -07:00
David S. Miller
fe4f961eb5 Merge branch 'net-smc-add-event-based-framework-for-LLC-msgs'
Karsten Graul says:

====================
net/smc: add event-based framework for LLC msgs

These patches are the next step towards SMC-R link failover support. They add
a new framework to handle Link Layer Control (LLC) messages and adapt the
existing code to use the new framework.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 12:44:34 -07:00
Karsten Graul
41a211d862 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>
2020-04-30 12:44:34 -07:00
Karsten Graul
42d18acce9 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>
2020-04-30 12:44:34 -07:00
Karsten Graul
218b24fe38 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>
2020-04-30 12:44:34 -07:00
Karsten Graul
3bc67e098c 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>
2020-04-30 12:44:34 -07:00
Karsten Graul
ba21abd22f 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>
2020-04-30 12:44:34 -07:00
Karsten Graul
56e8091c7a 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>
2020-04-30 12:44:33 -07:00
Karsten Graul
6d74c3a8a3 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>
2020-04-30 12:44:33 -07:00
Karsten Graul
3d88a21b0c 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>
2020-04-30 12:44:33 -07:00
Karsten Graul
0fb0b02bd6 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>
2020-04-30 12:44:33 -07:00
Karsten Graul
4667bb4aaa 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>
2020-04-30 12:44:33 -07:00
Karsten Graul
92334cfcb3 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>
2020-04-30 12:44:33 -07:00
Karsten Graul
81e6e5e70d 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>
2020-04-30 12:44:33 -07:00
Karsten Graul
a6688d919b 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>
2020-04-30 12:44:33 -07:00
Karsten Graul
555da9af82 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>
2020-04-30 12:44:33 -07:00
Tang Bin
1569a3c443 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>
2020-04-30 12:20:54 -07:00
Yunjian Wang
51070a3627 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>
2020-04-30 12:15:13 -07:00
Yunjian Wang
99b2292ba2 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>
2020-04-30 12:13:07 -07:00
David S. Miller
4b88de9f01 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>
2020-04-30 12:11:14 -07:00
Robert Marko
9c8c0f70ec 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>
2020-04-30 12:11:14 -07:00
Robert Marko
4972ecee06 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>
2020-04-30 12:11:14 -07:00
Robert Marko
466ed24fb2 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>
2020-04-30 12:11:14 -07:00
Zou Wei
40cf7fbe8a 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>
2020-04-30 11:53:12 -07:00
YueHaibing
ddc2118ef0 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>
2020-04-30 11:52:36 -07:00
David S. Miller
9e9f6e72a0 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>
2020-04-29 16:55:22 -07:00
Doug Berger
f50932cca6 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>
2020-04-29 16:55:22 -07:00
Doug Berger
3e37095228 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>
2020-04-29 16:55:22 -07:00
Doug Berger
854295d03c 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>
2020-04-29 16:55:22 -07:00
Doug Berger
14da1510fe Revert "net: bcmgenet: remove unused function in bcmgenet.c"
This reverts commit e2072600a2.

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>
2020-04-29 16:55:22 -07:00
Doug Berger
1a1d5106c1 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>
2020-04-29 16:55:22 -07:00
Doug Berger
6f7689057a 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: c51de7f397 ("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>
2020-04-29 16:55:21 -07:00
Doug Berger
72f9634762 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: b6e978e504 ("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>
2020-04-29 16:55:21 -07:00
David S. Miller
323e395f19 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>
2020-04-29 14:14:44 -07:00
David S. Miller
7263d72bec 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>
2020-04-29 12:26:33 -07:00
Karsten Graul
00a049cfde 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>
2020-04-29 12:26:33 -07:00
Karsten Graul
faca536008 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>
2020-04-29 12:26:33 -07:00
Karsten Graul
ef79d439cd 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>
2020-04-29 12:26:33 -07:00