Yang Yingliang [Wed, 14 Sep 2022 13:40:30 +0000 (21:40 +0800)]
can: flexcan: Switch to use dev_err_probe() helper
dev_err() can be replace with dev_err_probe() which will check if error
code is -EPROBE_DEFER.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/all/20220914134030.3782754-1-yangyingliang@huawei.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Marc Kleine-Budde [Tue, 6 Sep 2022 06:41:15 +0000 (08:41 +0200)]
Merge patch series "can: raw: random optimizations"
Ziyang Xuan <william.xuanziyang@huawei.com> says:
Do some small optimizations for can_raw.
Link: https://lore.kernel.org/all/cover.1661584485.git.william.xuanziyang@huawei.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Ziyang Xuan [Sat, 27 Aug 2022 07:20:11 +0000 (15:20 +0800)]
can: raw: use guard clause to optimize nesting in raw_rcv()
We can use guard clause to optimize nesting codes like
if (condition) { ... } else { return; } in raw_rcv();
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Link: https://lore.kernel.org/all/0170ad1f07dbe838965df4274fce950980fa9d1f.1661584485.git.william.xuanziyang@huawei.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Ziyang Xuan [Sat, 27 Aug 2022 07:20:10 +0000 (15:20 +0800)]
can: raw: process optimization in raw_init()
Now, register notifier after register proto successfully. It can create
raw socket and set socket options once register proto successfully, so it
is possible missing notifier event before register notifier successfully
although this is a low probability scenario.
Move notifier registration to the front of proto registration like done
in j1939. In addition, register_netdevice_notifier() may fail, check its
result is necessary.
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Link: https://lore.kernel.org/all/7af9401f0d2d9fed36c1667b5ac9b8df8f8b87ee.1661584485.git.william.xuanziyang@huawei.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Dario Binacchi [Sun, 28 Aug 2022 13:44:42 +0000 (15:44 +0200)]
docs: networking: device drivers: flexcan: fix invalid email
The Amarula contact info email address is wrong, so fix it up to use the
correct one.
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://lore.kernel.org/all/20220828134442.794990-1-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Krzysztof Kozlowski [Tue, 23 Aug 2022 10:10:11 +0000 (13:10 +0300)]
dt-bindings: net: can: nxp,sja1000: drop ref from reg-io-width
reg-io-width is a standard property, so no need for defining its type
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/all/20220823101011.386970-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Gustavo A. R. Silva [Mon, 29 Aug 2022 21:50:59 +0000 (16:50 -0500)]
can: etas_es58x: Replace zero-length array with DECLARE_FLEX_ARRAY() helper
Zero-length arrays are deprecated and we are moving towards adopting
C99 flexible-array members, instead. So, replace zero-length array
declaration in union es58x_urb_cmd with the new DECLARE_FLEX_ARRAY()
helper macro.
This helper allows for a flexible-array member in a union.
Link: https://github.com/KSPP/linux/issues/193
Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/all/Yw00w6XRcq7B6ub6@work
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Marc Kleine-Budde [Tue, 6 Sep 2022 06:23:43 +0000 (08:23 +0200)]
Merge patch series "can: gs_usb: hardware timestamp support"
Marc Kleine-Budde <mkl@pengutronix.de> says:
after noticing that the gs_usb firmware sends timestamps on the TX,
too, I updated the driver and squashed the 2nd patch. Also added
proper endianness handling to gs_usb_get_timestamp(). I allowed to add
myself as Co-developed-by.
Changes since v2: https://lore.kernel.org/all/
20220827092545.2971240-1-mkl@pengutronix.de
- new patch 1/2: use common spelling of GS_USB in macros
- squashed both old patches into now 2/2
- use GS_USB instead of GSUSB in macros
- gs_usb_get_timestamp(): renamed from gs_usb_get_sof_timestamp()
- gs_usb_get_timestamp(): take care of endianness
- gs_usb_skb_set_timestamp(): renamed from gs_usb_set_timestamp()
- gs_usb_set_timestamp(): add new function to add timestamp to skb
from struct gs_host_frame
- add support for TX timestamps
- gs_can_eth_ioctl(): return -EOPNOTSUPP if device doesn't support
GS_CAN_FEATURE_HW_TIMESTAMP
- gs_usb_get_ts_info(): renamed from gs_usb_get_ts_info_hwts()
- gs_usb_get_ts_info(): call can_ethtool_op_get_ts_info_hwts() if
device supports GS_CAN_FEATURE_HW_TIMESTAMP, call
ethtool_op_get_ts_info() otherwise
Changes since v1: https://lore.kernel.org/all/
20220826104629.2837024-1-mkl@pengutronix.de
- add new includes sorted
- adjust multi line comment style
- don't use 1e6, but 1 * HZ_PER_MHZ, to fix sparse warning
- use __le32 instead of u32 in struct classic_can_ts and canfd_ts
- place _ts in front of _quirk in union in struct gs_host_frame
- gs_usb_get_sof_timestamp(): pass "const struct gs_can *dev" as 1st
argument, not struct net_device *netdev, simplify return handling
- gs_usb_timestamp_init(), gs_usb_timestamp_stop(),
gs_usb_get_ts_info_hwts(): make static
- gs_usb_timestamp_init(): increase cc->shift to maximize precision
- fix long lines, remove braces {} for single statement blocks
- gs_can_open(): move check for GS_CAN_FEATURE_HW_TIMESTAMP after all
ctrlmode checks
- gs_can_open(): move start polling sof timestamp after kfree(dm)
- gs_can_close(): move stop polling sof timestamp to be symmetric with
respect to gs_can_open()
- gs_usb_probe(): make calculation of dev->hf_size_rx more robust
Link: https://lore.kernel.org/all/20220827221548.3291393-1-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
John Whittington [Mon, 22 Aug 2022 10:01:10 +0000 (12:01 +0200)]
can: gs_usb: add RX and TX hardware timestamp support
Add support for hardware timestamps, if the firmware includes it as a
feature via the GS_CAN_FEATURE_HW_TIMESTAMP flag. Check for this
feature during probe, extend the RX expected length if it is and
enable it during open.
The struct classic_can_ts and struct canfd_ts are extended to include
the µs timestamp following data as defined in the firmware. The
timestamp is then captured and set using skb_hwtstamps() on each RX
and TX.
The frame µs timestamp is provided from a 32 bit 1 MHz timer which
rolls over every 4294 seconds, so a cyclecounter, timecounter, and
delayed worker are used to convert the timer into a proper ns
timestamp - same implementation as commit
efd8d98dfb900 ("can:
mcp251xfd: add HW timestamp infrastructure").
Hardware timestamps are added to capabilities as commit
b1f6b93e678f ("can: mcp251xfd: advertise timestamping capabilities and
add ioctl support").
Signed-off-by: John Whittington <git@jbrengineering.co.uk>
Link: https://github.com/candle-usb/candleLight_fw/issues/100
Link: https://lore.kernel.org/all/20220827221548.3291393-3-mkl@pengutronix.de
Co-developed-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Marc Kleine-Budde [Sat, 27 Aug 2022 17:03:25 +0000 (19:03 +0200)]
can: gs_usb: use common spelling of GS_USB in macros
There are a few macros in the driver which use GSUSB in the name of
the macro, while the majority uses GS_USB. Convert all macros to
GS_USB.
Fixes:
d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Fixes:
b00ca070e022 ("can: gs_usb: activate quirks for CANtact Pro unconditionally")
Link: https://lore.kernel.org/all/20220827221548.3291393-2-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Jinpeng Cui [Wed, 31 Aug 2022 15:08:05 +0000 (15:08 +0000)]
can: kvaser_pciefd: remove redundant variable ret
Return value directly from readl_poll_timeout() instead of
getting value from redundant variable ret.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Jinpeng Cui <cui.jinpeng2@zte.com.cn>
Link: https://lore.kernel.org/all/20220831150805.305106-1-cui.jinpeng2@zte.com.cn
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Jinpeng Cui [Wed, 31 Aug 2022 16:18:35 +0000 (16:18 +0000)]
can: sja1000: remove redundant variable ret
Return value directly from register_candev() instead of
getting value from redundant variable ret.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Jinpeng Cui <cui.jinpeng2@zte.com.cn>
Link: https://lore.kernel.org/all/20220831161835.306079-1-cui.jinpeng2@zte.com.cn
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Biju Das [Sun, 10 Jul 2022 11:52:48 +0000 (12:52 +0100)]
can: sja1000: Add support for RZ/N1 SJA1000 CAN Controller
The SJA1000 CAN controller on RZ/N1 SoC has no clock divider register
(CDR) support compared to others.
This patch adds support for RZ/N1 SJA1000 CAN Controller, by adding
SoC specific compatible to handle this difference as well as using
clk framework to retrieve the CAN clock frequency.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/all/20220710115248.190280-7-biju.das.jz@bp.renesas.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Biju Das [Tue, 30 Aug 2022 16:45:16 +0000 (17:45 +0100)]
dt-bindings: can: nxp,sja1000: Document RZ/N1 power-domains support
Document RZ/N1 power-domains support. Also update the example with
power-domains property.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/all/20220830164518.1381632-2-biju.das.jz@bp.renesas.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Kenneth Lee [Sun, 7 Aug 2022 05:16:56 +0000 (22:16 -0700)]
can: kvaser_usb: kvaser_usb_hydra: Use kzalloc for allocating only one element
Use kzalloc(...) rather than kcalloc(1, ...) since because the number of
elements we are specifying in this case is 1, kzalloc would accomplish the
same thing and we can simplify. Also refactor how we calculate the sizeof()
as checkstyle for kzalloc() prefers using the variable we are assigning
to versus the type of that variable for calculating the size to allocate.
Signed-off-by: Kenneth Lee <klee33@uw.edu>
Link: https://lore.kernel.org/all/20220807051656.1991446-1-klee33@uw.edu
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Christophe JAILLET [Sun, 7 Aug 2022 07:52:11 +0000 (09:52 +0200)]
can: rcar_canfd: Use dev_err_probe() to simplify code and better handle -EPROBE_DEFER
devm_clk_get() can return -EPROBE_DEFER, so use dev_err_probe() instead of
dev_err() in order to be less verbose in the log.
This also saves a few LoC.
While at it, turn a "goto fail_dev;" at the beginning of the function into
a direct return in order to avoid mixing goto and return, which looks
spurious.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/all/f5bf0b8f757bd3bc9b391094ece3548cc2f96456.1659858686.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Marc Kleine-Budde [Thu, 11 Aug 2022 07:52:10 +0000 (09:52 +0200)]
can: flexcan: fix typo: FLEXCAN_QUIRK_SUPPPORT_* -> FLEXCAN_QUIRK_SUPPORT_*
Fix typo "FLEXCAN_QUIRK_SUPPPORT_*" -> "FLEXCAN_QUIRK_SUPPORT_".
Link: https://lore.kernel.org/all/20220811093617.1861938-3-mkl@pengutronix.de
Fixes:
f04aefd4659b ("can: flexcan: mark RX via mailboxes as supported on MCF5441X")
Fixes:
c5c88591040e ("can: flexcan: add more quirks to describe RX path capabilities")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Marc Kleine-Budde [Wed, 10 Aug 2022 19:38:00 +0000 (21:38 +0200)]
can: rx-offload: can_rx_offload_init_queue(): fix typo
Fix typo "rounted" -> "rounded".
Link: https://lore.kernel.org/all/20220811093617.1861938-2-mkl@pengutronix.de
Fixes:
d254586c3453 ("can: rx-offload: Add support for HW fifo based irq offloading")
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Heiner Kallweit [Sat, 3 Sep 2022 11:15:13 +0000 (13:15 +0200)]
r8169: remove not needed net_ratelimit() check
We're not in a hot path and don't want to miss this message,
therefore remove the net_ratelimit() check.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Kees Cook [Sat, 3 Sep 2022 04:37:49 +0000 (21:37 -0700)]
netlink: Bounds-check struct nlmsgerr creation
In preparation for FORTIFY_SOURCE doing bounds-check on memcpy(),
switch from __nlmsg_put to nlmsg_put(), and explain the bounds check
for dealing with the memcpy() across a composite flexible array struct.
Avoids this future run-time warning:
memcpy: detected field-spanning write (size 32) of single field "&errmsg->msg" at net/netlink/af_netlink.c:2447 (size 16)
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Jozsef Kadlecsik <kadlec@netfilter.org>
Cc: Florian Westphal <fw@strlen.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: syzbot <syzkaller@googlegroups.com>
Cc: netfilter-devel@vger.kernel.org
Cc: coreteam@netfilter.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220901071336.1418572-1-keescook@chromium.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 22:02:39 +0000 (18:02 -0400)]
net: phy: Add 1000BASE-KX interface mode
Add 1000BASE-KX interface mode. This 1G backplane ethernet as described in
clause 70. Clause 73 autonegotiation is mandatory, and only full duplex
operation is supported.
Although at the PMA level this interface mode is identical to
1000BASE-X, it uses a different form of in-band autonegation. This
justifies a separate interface mode, since the interface mode (along
with the MLO_AN_* autonegotiation mode) sets the type of autonegotiation
which will be used on a link. This results in more than just electrical
differences between the link modes.
With regard to 1000BASE-X, 1000BASE-KX holds a similar position to
SGMII: same signaling, but different autonegotiation. PCS drivers
(which typically handle in-band autonegotiation) may only support
1000BASE-X, and not 1000BASE-KX. Similarly, the phy mode is used to
configure serdes phys with phy_set_mode_ext. Due to the different
electrical standards (SFI or XFI vs Clause 70), they will likely want to
use different configuration. Adding a phy interface mode for
1000BASE-KX helps simplify configuration in these areas.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 5 Sep 2022 13:27:40 +0000 (14:27 +0100)]
Merge branch 'dpaa-cleanups'
Sean Anderson says:
====================
net: dpaa: Cleanups in preparation for phylink conversion (part 2)
This series contains several cleanup patches for dpaa/fman. While they
are intended to prepare for a phylink conversion, they stand on their
own. This series was originally submitted as part of [1].
[1] https://lore.kernel.org/netdev/
20220715215954.1449214-1-sean.anderson@seco.com
Changes in v5:
- Reduce line length of tgec_config
- Reduce line length of qman_update_cgr_safe
- Rebase onto net-next/master
Changes in v4:
- weer -> were
- tricy -> tricky
- Use mac_dev for calling change_addr
- qman_cgr_create -> qman_create_cgr
Changes in v2:
- Fix prototype for dtsec_initialization
- Fix warning if sizeof(void *) != sizeof(resource_size_t)
- Specify type of mac_dev for exception_cb
- Add helper for sanity checking cgr ops
- Add CGR update function
- Adjust queue depth on rate change
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:36 +0000 (17:57 -0400)]
net: dpaa: Adjust queue depth on rate change
Instead of setting the queue depth once during probe, adjust it on the
fly whenever we configure the link. This is a bit unusal, since usually
the DPAA driver calls into the FMAN driver, but here we do the opposite.
We need to add a netdev to struct mac_device for this, but it will soon
live in the phylink config.
I haven't tested this extensively, but it doesn't seem to break
anything. We could possibly optimize this a bit by keeping track of the
last rate, but for now we just update every time. 10GEC probably doesn't
need to call into this at all, but I've added it for consistency.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:35 +0000 (17:57 -0400)]
soc: fsl: qbman: Add CGR update function
This adds a function to update a CGR with new parameters. qman_create_cgr
can almost be used for this (with flags=0), but it's not suitable because
it also registers the callback function. The _safe variant was modeled off
of qman_cgr_delete_safe. However, we handle multiple arguments and a return
value.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:34 +0000 (17:57 -0400)]
soc: fsl: qbman: Add helper for sanity checking cgr ops
This breaks out/combines get_affine_portal and the cgr sanity check in
preparation for the next commit. No functional change intended.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:33 +0000 (17:57 -0400)]
net: dpaa: Use mac_dev variable in dpaa_netdev_init
There are several references to mac_dev in dpaa_netdev_init. Make things a
bit more concise by adding a local variable for it.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:32 +0000 (17:57 -0400)]
net: fman: Change return type of disable to void
When disabling, there is nothing we can do about errors. In fact, the
only error which can occur is misuse of the API. Just warn in the mac
driver instead.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:31 +0000 (17:57 -0400)]
net: fman: Clean up error handling
This removes the _return label, since something like
err = -EFOO;
goto _return;
can be replaced by the briefer
return -EFOO;
Additionally, this skips going to _return_of_node_put when dev_node has
already been put (preventing a double put).
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:30 +0000 (17:57 -0400)]
net: fman: Specify type of mac_dev for exception_cb
Instead of using a void pointer for mac_dev, specify its type
explicitly.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:29 +0000 (17:57 -0400)]
net: fman: Use mac_dev for some params
Some params are already present in mac_dev. Use them directly instead of
passing them through params.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:28 +0000 (17:57 -0400)]
net: fman: Pass params directly to mac init
Instead of having the mac init functions call back into the fman core to
get their params, just pass them directly to the init functions.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:27 +0000 (17:57 -0400)]
net: fman: Map the base address once
We don't need to remap the base address from the resource twice (once in
mac_probe() and again in set_fman_mac_params()). We still need the
resource to get the end address, but we can use a single function call
to get both at once.
While we're at it, use platform_get_mem_or_io and devm_request_resource
to map the resource. I think this is the more "correct" way to do things
here, since we use the pdev resource, instead of creating a new one.
It's still a bit tricky, since we need to ensure that the resource is a
child of the fman region when it gets requested.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:26 +0000 (17:57 -0400)]
net: fman: Remove internal_phy_node from params
This member was used to pass the phy node between mac_probe and the
mac-specific initialization function. But now that the phy node is
gotten in the initialization function, this parameter does not serve a
purpose. Remove it, and do the grabbing of the node/grabbing of the phy
in the same place.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:25 +0000 (17:57 -0400)]
net: fman: Inline several functions into initialization
There are several small functions which were only necessary because the
initialization functions didn't have access to the mac private data. Now
that they do, just do things directly.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:24 +0000 (17:57 -0400)]
net: fman: Mark mac methods static
These methods are no longer accessed outside of the driver file, so mark
them as static.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sean Anderson [Fri, 2 Sep 2022 21:57:23 +0000 (17:57 -0400)]
net: fman: Move initialization to mac-specific files
This moves mac-specific initialization to mac-specific files. This will
make it easier to work with individual macs. It will also make it easier
to refactor the initialization to simplify the control flow. No
functional change intended.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Fri, 2 Sep 2022 21:16:52 +0000 (23:16 +0200)]
r8169: remove useless PCI region size check
Let's trust the hardware here and remove this useless check.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 5 Sep 2022 12:06:40 +0000 (13:06 +0100)]
Merge branch 'lan937x-phy-link-interrupt'
Arun Ramadoss says:
====================
net: dsa: microchip: lan937x: enable interrupt for internal phy link detection
This patch series enables the internal phy link detection for lan937x using the
interrupt method. lan937x acts as the interrupt controller for the internal
ports and phy, the irq_domain is registered for the individual ports and in
turn for the individual port interrupts.
RFC v3 -> Patch v1
- Removed the RFC v3 1/3 from the series - changing exit from reset
- Changed the variable name in ksz_port from irq to pirq
- Added the check for return value of irq_find_mapping during phy irq
registeration.
- Moved the clearing of POR_READY_INT from girq_thread_fn to
lan937x_reset_switch
RFC v2 -> v3
- Used the interrupt controller implementation of phy link
Changes in RFC v2
- fixed the compilation issue
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Arun Ramadoss [Fri, 2 Sep 2022 10:32:10 +0000 (16:02 +0530)]
net: dsa: microchip: lan937x: add interrupt support for port phy link
This patch enables the interrupts for internal phy link detection for
LAN937x. The interrupt enable bits are active low. There is global
interrupt mask for each port. And each port has the individual interrupt
mask for TAS. QCI, SGMII, PTP, PHY and ACL.
The first level of interrupt domain is registered for global port
interrupt and second level of interrupt domain for the individual port
interrupts. The phy interrupt is enabled in the lan937x_mdio_register
function. Interrupt from which port is raised will be detected based on
the interrupt host data.
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arun Ramadoss [Fri, 2 Sep 2022 10:32:09 +0000 (16:02 +0530)]
net: dsa: microchip: lan937x: clear the POR_READY_INT status bit
In the lan937x_reset_switch(), it masks all the switch and port
registers. In the Global_Int_status register, POR ready bit is write 1
to clear bit and all other bits are read only. So, this patch clear the
por_ready_int status bit by writing 1.
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arun Ramadoss [Fri, 2 Sep 2022 10:32:08 +0000 (16:02 +0530)]
net: dsa: microchip: add reference to ksz_device inside the ksz_port
struct ksz_port doesn't have reference to ksz_device as of now. In order
to find out from which port interrupt has triggered, we need to pass the
struct ksz_port as a host data. When the interrupt is triggered, we can
get the port from which interrupt triggered, but to identify it is phy
interrupt we have to read status register. The regmap structure for
accessing the device register is present in the ksz_device struct. To
access the ksz_device from the ksz_port, the reference is added to it
with port number as well.
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.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>
David S. Miller [Mon, 5 Sep 2022 11:47:02 +0000 (12:47 +0100)]
Merge branch 'ipa-transaction-IDs'
Alex Elder says:
====================
net: ipa: start using transaction IDs
A previous group of patches added ID fields to track the state of
transactions:
https://lore.kernel.org/netdev/
20220831224017.377745-1-elder@linaro.org
This series starts using those IDs instead of the lists used
previously. Most of this series involves reworking the function
that determines which transaction is the "last", which determines
when a channel has been quiesed. The last patch is mainly used to
prove that the new index method of tracking transaction state is
equivalent to the previous use of lists.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Fri, 2 Sep 2022 21:02:18 +0000 (16:02 -0500)]
net: ipa: verify a few more IDs
The completed transaction list is used in gsi_channel_trans_complete()
to return the next transaction in completed state.
Add some temporary checks to verify the transaction indicated by the
completed ID matches the one first in this list.
Similarly, we use the pending and completed transaction lists when
cancelling pending transactions in gsi_channel_trans_cancel_pending().
Add temporary checks there to verify the transactions indicated by
IDs match those tracked by these lists.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Fri, 2 Sep 2022 21:02:17 +0000 (16:02 -0500)]
net: ipa: further simplify gsi_channel_trans_last()
Do a little more refactoring in gsi_channel_trans_last() to simplify
it further. The resulting code should behave exactly as before.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Fri, 2 Sep 2022 21:02:16 +0000 (16:02 -0500)]
net: ipa: simplify gsi_channel_trans_last()
Using a little logic we can simplify gsi_channel_trans_last().
The first condition in that function looks like this:
if (trans_info->allocated_id != trans_info->free_id)
And if that's false, we proceed to the next one:
if (trans_info->committed_id != trans_info->allocated_id)
Failure of the first test implies:
trans_info->allocated_id == trans_info->free_id
And therefore, the second one can be rewritten this way:
if (trans_info->committed_id != trans_info->free_id)
Substituting free_id for allocated_id and committed_id can also be
done in the code blocks executed when these conditions yield true.
The net result is that all three blocks for TX endpoints can be
consolidated into just one.
The two blocks of code at the end of that function (used for both TX
and RX channels) can be similarly consolidated into a single block.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Fri, 2 Sep 2022 21:02:15 +0000 (16:02 -0500)]
net: ipa: use IDs exclusively for last transaction
Always use transaction IDs when finding the "last" transaction to
await when quiescing a channel. This basically extends what was
done in the previous patch to all other transaction state IDs.
As a result we are no longer updating any transaction lists inside
gsi_channel_trans_last(), so there's no need to take the spinlock.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Fri, 2 Sep 2022 21:02:14 +0000 (16:02 -0500)]
net: ipa: use IDs for last allocated transaction
Use the allocated and free transaction IDs to determine whether the
"last" transaction used for quiescing a channel is in allocated
state. The last allocated transaction that has not been committed
(if any) immediately precedes the first free transaction in the
transaction array.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Fri, 2 Sep 2022 21:02:13 +0000 (16:02 -0500)]
net: ipa: rework last transaction determination
When quiescing a channel, we find the "last" transaction, which is
the latest one to have been allocated. (New transaction allocation
will have been prevented by the time this is called.)
Currently we do this by looking for the first non-empty transaction
list in each state, then return the last entry from that last.
Instead, determine the last entry in each list (if any) and return
that entry if found.
Temporarily (locally) introduce list_last_entry_or_null() as a
helper for this, mirroring list_first_entry_or_null(). This macro
definition will be removed by an upcoming patch.
Remove the temporary warnings added by the previous commit.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Fri, 2 Sep 2022 20:52:34 +0000 (22:52 +0200)]
r8169: use devm_clk_get_optional_enabled() to simplify the code
Now that we have devm_clk_get_optional_enabled(), we don't have to
open-code it.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Fri, 2 Sep 2022 20:21:57 +0000 (22:21 +0200)]
r8169: remove comment about apparently non-existing chip versions
It's not clear where these entries came from, and as I wrote in the
comment: Not even Realtek's r8101 driver knows these chip id's.
So remove the comment.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Fri, 2 Sep 2022 20:10:53 +0000 (22:10 +0200)]
r8169: merge handling of chip versions 12 and 17 (RTL8168B)
It's not clear why XID's 380 and 381..387 ever got different chip
version id's. VER_12 and VER_17 are handled exactly the same.
Therefore merge handling under the VER_17 umbrella.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 5 Sep 2022 09:16:53 +0000 (10:16 +0100)]
Merge branch 'altera-tse-phylink'
Maxime Chevallier says:
====================
net: altera: tse: phylink conversion
This is V4 of a series converting the Altera TSE driver to phylink,
introducing a new PCS driver along the way.
The Altera TSE can be built with a SGMII/1000BaseX PCS, allowing to use
SFP ports with this MAC, which is the end goal of adding phylink support
and a proper PCS driver.
The PCS itself can either be mapped in the MAC's register space, in that
case, it's accessed through 32 bits registers, with the higher 16 bits
always 0. Alternatively, it can sit on its own register space, exposing
16 bits registers, some of which ressemble the standard PHY registers.
To tackle that rework, several things needs updating, starting by the DT
binding, since we add support for a new register range for the PCS.
Hence, the first patch of the series is a conversion to YAML of the
existing binding.
Then, patch 2 does a bit of simple cleanup to the TSE driver, using nice
reverse xmas tree definitions.
Patch 3 adds the actual PCS driver, as a standalone driver. Some future
series will then reuse that PCS driver from the dwmac-socfpga driver,
which implements support for this exact PCS too, allowing to share the
code nicely.
Patch 4 is then a phylink conversion of the altera_tse driver, to use
this new PCS driver.
Finally, patch 5 updates the newly converted DT binding to support the
pcs register range.
This series contains bits and pieces for this conversion, please tell me if
you want me to send it as individual patches.
V4 Changes:
- Add missing MODULE_* macros to the TSE PCS driver
V3 Changes:
- YAML binding conversion changes and PCS addition changes thanks to
Krzysztof's reviews
V2 Changes :
- Fixed the binding after the YAML conversion
- Added a pcs_validate() callback
- Introduced a comment to justify a soft reset for the PCS
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Maxime Chevallier [Fri, 2 Sep 2022 08:32:05 +0000 (10:32 +0200)]
dt-bindings: net: altera: tse: add an optional pcs register range
Some implementations of the TSE have their PCS as an external bloc,
exposed at its own register range. Document this, and add a new example
showing a case using the pcs and the new phylink conversion to connect
an sfp port to a TSE mac.
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Maxime Chevallier [Fri, 2 Sep 2022 08:32:04 +0000 (10:32 +0200)]
net: altera: tse: convert to phylink
Convert the Altera Triple Speed Ethernet Controller to phylink.
This controller supports MII, GMII and RGMII with its MAC, and
SGMII + 1000BaseX through a small embedded PCS.
The PCS itself has a register set very similar to what is found in a
typical 802.3 ethernet PHY, but this register set memory-mapped instead
of lying on an mdio bus.
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Maxime Chevallier [Fri, 2 Sep 2022 08:32:03 +0000 (10:32 +0200)]
net: pcs: add new PCS driver for altera TSE PCS
The Altera Triple Speed Ethernet has a SGMII/1000BaseC PCS that can be
integrated in several ways. It can either be part of the TSE MAC's
address space, accessed through 32 bits accesses on the mapped mdio
device 0, or through a dedicated 16 bits register set.
This driver allows using the TSE PCS outside of altera TSE's driver,
since it can be used standalone by other MACs.
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Maxime Chevallier [Fri, 2 Sep 2022 08:32:02 +0000 (10:32 +0200)]
net: altera: tse: cosmetic change to use reverse xmas tree ordering
Make the driver code cleaner through a strictly cosmetic change, using
he reverse xmas tree variable declaration ordering.
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Maxime Chevallier [Fri, 2 Sep 2022 08:32:01 +0000 (10:32 +0200)]
dt-bindings: net: Convert Altera TSE bindings to yaml
Convert the bindings for the Altera Triple-Speed Ethernet to yaml.
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 4 Sep 2022 10:24:34 +0000 (11:24 +0100)]
Merge tag 'wireless-next-2022-09-03' of git://git./linux/kernel/git/wireless/wireless-next
Johannes Berg says:
====================
drivers
- rtw89: large update across the map, e.g. coex, pci(e), etc.
- ath9k: uninit memory read fix
- ath10k: small peer map fix and a WCN3990 device fix
- wfx: underflow
stack
- the "change MAC address while IFF_UP" change from James
we discussed
- more MLO work, including a set of fixes for the previous
code, now that we have more code we can exercise it more
- prevent some features with MLO that aren't ready yet
(AP_VLAN and 4-address connections)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Johannes Berg [Fri, 2 Sep 2022 14:12:49 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: fix multi-channel handling in netlink RX
In netlink RX, now that we can actually have multiple
channel contexts for MLO, things don't work well as we
only keep a single pointer, and then on link switching
we might NULL it, and hit the return if the channel is
NULL.
However, we already use mac80211_hwsim_tx_iter() which
deals with all this, so remove the test and adjust the
remaining code a bit.
This then means we no longer use the chanctx pointer,
so remove it as well.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 2 Sep 2022 14:12:51 +0000 (16:12 +0200)]
wifi: mac80211: call drv_sta_state() under sdata_lock() in reconfig
Currently, other paths calling drv_sta_state() hold the mutex
and therefore drivers can assume that, and look at links with
that protection. Fix that for the reconfig path as well; to
do it more easily use ieee80211_reconfig_stations() for the
AP/AP_VLAN station reconfig as well.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 2 Sep 2022 14:12:50 +0000 (16:12 +0200)]
wifi: nl80211: add MLD address to assoc BSS entries
Add an MLD address attribute to BSS entries that the interface
is currently associated with to help userspace figure out what's
going on.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 2 Sep 2022 14:12:46 +0000 (16:12 +0200)]
wifi: mac80211: mlme: refactor QoS settings code
Refactor the code to apply QoS settings to the driver so
we can call it on link switch.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 2 Sep 2022 14:12:39 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: warn on invalid link address
Catch the bugs fixed in mac80211 by the previous commits
and warn if an invalid address is added (or removed).
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 2 Sep 2022 14:12:55 +0000 (16:12 +0200)]
wifi: mac80211: fix double SW scan stop
When we stop a not-yet-started scan, we erroneously call
into the driver, causing a sequence of sw_scan_start()
followed by sw_scan_complete() twice. This will cause a
warning in hwsim with next in line commit that validates
the address passed to wmediumd/virtio. Fix this by doing
the calls only if we were actually scanning.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 2 Sep 2022 14:12:38 +0000 (16:12 +0200)]
wifi: mac80211: mlme: assign link address correctly
Right now, we assign the link address only after we add
the link to the driver, which is quite obviously wrong.
It happens to work in many cases because it gets updated
immediately, and then link_conf updates may update it,
but it's clearly not really right.
Set the link address during ieee80211_mgd_setup_link()
so it's set before telling the driver about the link.
Fixes:
81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 2 Sep 2022 14:12:37 +0000 (16:12 +0200)]
wifi: mac80211: move link code to a new file
We probably should've done that originally, we already have
about 300 lines of code there, and will add more. Move all
the link code we wrote to a new file.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 2 Sep 2022 14:12:36 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: refactor RX a bit
Refactor some common RX functionality between the netlink
and non-netlink paths, adding the special hwsim TLV (if
compiled) also in the netlink path.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 2 Sep 2022 14:12:35 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: check STA magic in change_sta_links
Just as an additional check that mac80211 isn't doing
anything strange, add a check of the STA magic (which
gets assigned when the station is added, and cleared
when the station is removed).
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 2 Sep 2022 14:12:34 +0000 (16:12 +0200)]
wifi: mac80211: remove unused arg to ieee80211_chandef_eht_oper
We don't need the sdata argument, and it doesn't make any
sense for a direct conversion from one value to another,
so just remove the argument
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 2 Sep 2022 14:12:33 +0000 (16:12 +0200)]
wifi: mac80211_hwsim: remove multicast workaround
Now that we have proper multicast TX in mac80211, there's
no longer a need to fake something here.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Jinpeng Cui [Mon, 29 Aug 2022 11:29:53 +0000 (11:29 +0000)]
wifi: nl80211: remove redundant err variable
Return value from rdev_set_mcast_rate() directly instead of
taking this in another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Jinpeng Cui <cui.jinpeng2@zte.com.cn>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
James Prestwood [Fri, 26 Aug 2022 17:00:32 +0000 (10:00 -0700)]
wifi: mac80211: Support POWERED_ADDR_CHANGE feature
Adds support in mac80211 for NL80211_EXT_FEATURE_POWERED_ADDR_CHANGE.
The motivation behind this functionality is to fix limitations of
address randomization on frequencies which are disallowed in world
roaming.
The way things work now, if a client wants to randomize their address
per-connection it must power down the device, change the MAC, and
power back up. Here lies a problem since powering down the device
may result in frequencies being disabled (until the regdom is set).
If the desired BSS is on one such frequency the client is unable to
connect once the phy is powered again.
For mac80211 based devices changing the MAC while powered is possible
but currently disallowed (-EBUSY). This patch adds some logic to
allow a MAC change while powered by removing the interface, changing
the MAC, and adding it again. mac80211 will advertise support for
this feature so userspace can determine the best course of action e.g.
disallow address randomization on certain frequencies if not
supported.
There are certain limitations put on this which simplify the logic:
- No active connection
- No offchannel work, including scanning.
Signed-off-by: James Prestwood <prestwoj@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
James Prestwood [Fri, 26 Aug 2022 17:00:31 +0000 (10:00 -0700)]
wifi: nl80211: Add POWERED_ADDR_CHANGE feature
Add a new extended feature bit signifying that the wireless hardware
supports changing the MAC address while the underlying net_device is
powered. Note that this has a different meaning from
IFF_LIVE_ADDR_CHANGE as additional restrictions might be imposed by
the hardware, such as:
- No connection is active on this interface, carrier is off
- No scan is in progress
- No offchannel operations are in progress
Signed-off-by: James Prestwood <prestwoj@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 2 Sep 2022 14:12:58 +0000 (16:12 +0200)]
wifi: mac80211: prevent 4-addr use on MLDs
We haven't tried this yet, and it's not very likely to
work well right now, so for now disable 4-addr use on
interfaces that are MLDs.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20220902161143.f2e4cc2efaa1.I5924e8fb44a2d098b676f5711b36bbc1b1bd68e2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Fri, 2 Sep 2022 14:12:59 +0000 (16:12 +0200)]
wifi: mac80211: prevent VLANs on MLDs
Do not allow VLANs to be added to AP interfaces that are
MLDs, this isn't going to work because the link structs
aren't propagated to the VLAN interfaces yet.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20220902161144.8c88531146e9.If2ef9a3b138d4f16ed2fda91c852da156bdf5e4d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
David S. Miller [Sat, 3 Sep 2022 09:40:40 +0000 (10:40 +0100)]
Merge branch 'net_sched-redundant-resource-cleanups'
Zhengchao Shao says:
====================
net: sched: remove redundant resource cleanup when init() fails
qdisc_create() calls .init() to initialize qdisc. If the initialization
fails, qdisc_create() will call .destroy() to release resources.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Zhengchao Shao [Fri, 2 Sep 2022 08:34:30 +0000 (16:34 +0800)]
net: sched: htb: remove redundant resource cleanup in htb_init()
If htb_init() fails, qdisc_create() invokes htb_destroy() to clear
resources. Therefore, remove redundant resource cleanup in htb_init().
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Zhengchao Shao [Fri, 2 Sep 2022 08:34:29 +0000 (16:34 +0800)]
net: sched: fq_codel: remove redundant resource cleanup in fq_codel_init()
If fq_codel_init() fails, qdisc_create() invokes fq_codel_destroy() to
clear resources. Therefore, remove redundant resource cleanup in
fq_codel_init().
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Fang [Fri, 2 Sep 2022 02:30:01 +0000 (10:30 +0800)]
net: fec: add stop mode support for imx8 platform
The current driver support stop mode by calling machine api.
The patch add dts support to set GPR register for stop request.
imx8mq enter stop/exit stop mode by setting GPR bit, which can
be accessed by A core.
imx8qm enter stop/exit stop mode by calling IMX_SC ipc APIs that
communicate with M core ipc service, and the M core set the related
GPR bit at last.
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
André Apitzsch [Thu, 1 Sep 2022 17:00:13 +0000 (19:00 +0200)]
r8152: Add MAC passthrough support for Lenovo Travel Hub
The Lenovo USB-C Travel Hub supports MAC passthrough.
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gustavo A. R. Silva [Wed, 31 Aug 2022 19:12:42 +0000 (14:12 -0500)]
net/ipv4: Use __DECLARE_FLEX_ARRAY() helper
We now have a cleaner way to keep compatibility with user-space
(a.k.a. not breaking it) when we need to keep in place a one-element
array (for its use in user-space) together with a flexible-array
member (for its use in kernel-space) without making it hard to read
at the source level. This is through the use of the new
__DECLARE_FLEX_ARRAY() helper macro.
The size and memory layout of the structure is preserved after the
changes. See below.
Before changes:
$ pahole -C ip_msfilter net/ipv4/igmp.o
struct ip_msfilter {
union {
struct {
__be32 imsf_multiaddr_aux; /* 0 4 */
__be32 imsf_interface_aux; /* 4 4 */
__u32 imsf_fmode_aux; /* 8 4 */
__u32 imsf_numsrc_aux; /* 12 4 */
__be32 imsf_slist[1]; /* 16 4 */
}; /* 0 20 */
struct {
__be32 imsf_multiaddr; /* 0 4 */
__be32 imsf_interface; /* 4 4 */
__u32 imsf_fmode; /* 8 4 */
__u32 imsf_numsrc; /* 12 4 */
__be32 imsf_slist_flex[0]; /* 16 0 */
}; /* 0 16 */
}; /* 0 20 */
/* size: 20, cachelines: 1, members: 1 */
/* last cacheline: 20 bytes */
};
After changes:
$ pahole -C ip_msfilter net/ipv4/igmp.o
struct ip_msfilter {
__be32 imsf_multiaddr; /* 0 4 */
__be32 imsf_interface; /* 4 4 */
__u32 imsf_fmode; /* 8 4 */
__u32 imsf_numsrc; /* 12 4 */
union {
__be32 imsf_slist[1]; /* 16 4 */
struct {
struct {
} __empty_imsf_slist_flex; /* 16 0 */
__be32 imsf_slist_flex[0]; /* 16 0 */
}; /* 16 0 */
}; /* 16 4 */
/* size: 20, cachelines: 1, members: 5 */
/* last cacheline: 20 bytes */
};
In the past, we had to duplicate the whole original structure within
a union, and update the names of all the members. Now, we just need to
declare the flexible-array member to be used in kernel-space through
the __DECLARE_FLEX_ARRAY() helper together with the one-element array,
within a union. This makes the source code more clean and easier to read.
Link: https://github.com/KSPP/linux/issues/193
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Zhengchao Shao [Thu, 1 Sep 2022 01:16:17 +0000 (09:16 +0800)]
net/sched: cls_api: remove redundant 0 check in tcf_qevent_init()
tcf_qevent_parse_block_index() never returns a zero block_index.
Therefore, it is unnecessary to check the value of block_index in
tcf_qevent_init().
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Link: https://lore.kernel.org/r/20220901011617.14105-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
GUO Zihua [Fri, 2 Sep 2022 08:15:21 +0000 (16:15 +0800)]
net: lantiq_etop: Fix return type for implementation of ndo_start_xmit
Since Linux now supports CFI, it will be a good idea to fix mismatched
return type for implementation of hooks. Otherwise this might get
cought out by CFI and cause a panic.
ltq_etop_tx() would return either NETDEV_TX_BUSY or NETDEV_TX_OK, so
change the return type to netdev_tx_t directly.
Signed-off-by: GUO Zihua <guozihua@huawei.com>
Link: https://lore.kernel.org/r/20220902081521.59867-1-guozihua@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
GUO Zihua [Fri, 2 Sep 2022 08:15:50 +0000 (16:15 +0800)]
net: sunplus: Fix return type for implementation of ndo_start_xmit
Since Linux now supports CFI, it will be a good idea to fix mismatched
return type for implementation of hooks. Otherwise this might get
cought out by CFI and cause a panic.
spl2sw_ethernet_start_xmit() would return either NETDEV_TX_BUSY or
NETDEV_TX_OK, so change the return type to netdev_tx_t directly.
Signed-off-by: GUO Zihua <guozihua@huawei.com>
Link: https://lore.kernel.org/r/20220902081550.60095-1-guozihua@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
GUO Zihua [Fri, 2 Sep 2022 08:16:12 +0000 (16:16 +0800)]
net: xscale: Fix return type for implementation of ndo_start_xmit
Since Linux now supports CFI, it will be a good idea to fix mismatched
return type for implementation of hooks. Otherwise this might get
cought out by CFI and cause a panic.
eth_xmit() would return either NETDEV_TX_BUSY or NETDEV_TX_OK, so
change the return type to netdev_tx_t directly.
Signed-off-by: GUO Zihua <guozihua@huawei.com>
Link: https://lore.kernel.org/r/20220902081612.60405-1-guozihua@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
GUO Zihua [Fri, 2 Sep 2022 07:54:07 +0000 (15:54 +0800)]
net: broadcom: Fix return type for implementation of
Since Linux now supports CFI, it will be a good idea to fix mismatched
return type for implementation of hooks. Otherwise this might get
cought out by CFI and cause a panic.
bcm4908_enet_start_xmit() would return either NETDEV_TX_BUSY or
NETDEV_TX_OK, so change the return type to netdev_tx_t directly.
Signed-off-by: GUO Zihua <guozihua@huawei.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220902075407.52358-1-guozihua@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Gal Pressman [Fri, 2 Sep 2022 03:06:20 +0000 (20:06 -0700)]
net: ieee802154: Fix compilation error when CONFIG_IEEE802154_NL802154_EXPERIMENTAL is disabled
When CONFIG_IEEE802154_NL802154_EXPERIMENTAL is disabled,
NL802154_CMD_DEL_SEC_LEVEL is undefined and results in a compilation
error:
net/ieee802154/nl802154.c:2503:19: error: 'NL802154_CMD_DEL_SEC_LEVEL' undeclared here (not in a function); did you mean 'NL802154_CMD_SET_CCA_ED_LEVEL'?
2503 | .resv_start_op = NL802154_CMD_DEL_SEC_LEVEL + 1,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
| NL802154_CMD_SET_CCA_ED_LEVEL
Unhide the experimental commands, having them defined in an enum
makes no difference.
Fixes:
9c5d03d36251 ("genetlink: start to validate reserved header bytes")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Tested-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Link: https://lore.kernel.org/r/20220902030620.2737091-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski [Thu, 1 Sep 2022 00:00:58 +0000 (17:00 -0700)]
net: remove netif_tx_napi_add()
All callers are now gone.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 31 Aug 2022 18:44:27 +0000 (18:44 +0000)]
net: bql: add more documentation
Add some documentation for netdev_tx_sent_queue() and
netdev_tx_completed_queue()
Stating that netdev_tx_completed_queue() must be called once
per TX completion round is apparently not obvious for everybody.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 2 Sep 2022 11:08:44 +0000 (12:08 +0100)]
Merge branch 'net-ipa-transaction-state-IDs'
Alex Elder says:
====================
net: ipa: use IDs to track transaction state
This series is the first of three groups of changes that simplify
the way the IPA driver tracks the state of its transactions.
Each GSI channel has a fixed number of transactions allocated at
initialization time. The number allocated matches the number of
TREs in the transfer ring associated with the channel. This is
because the transfer ring limits the number of transfers that can
ever be underway, and in the worst case, each transaction represents
a single TRE.
Transactions go through various states during their lifetime.
Currently a set of lists keeps track of which transactions are in
each state. Initially, all transactions are free. An allocated
transaction is placed on the allocated list. Once an allocated
transaction is committed, it is moved from the allocated to the
committed list. When a committed transaction is sent to hardware
(via a doorbell) it is moved to the pending list. When hardware
signals that some work has completed, transactions are moved to the
completed list. Finally, when a completed transaction is polled
it's moved to the polled list before being removed when it becomes
free.
Changing a transaction's state thus normally involves manipulating
two lists, and to prevent corruption a spinlock is held while the
lists are updated.
Transactions move through their states in a well-defined sequence
though, and they do so strictly in order. So transaction 0 is
always allocated before transaction 1; transaction 0 is always
committed before transaction 1; and so on, through completion,
polling, and becoming free. Because of this, it's sufficient to
just keep track of which transaction is the first in each state.
The rest of the transactions in a given state can be derived from
the first transaction in an "adjacent" state. As a result, we can
track the state of all transactions with a set of indexes, and can
update these without the need for a spinlock.
This first group of patches just defines the set of indexes that
will be used for this new way of tracking transaction state. Two
more groups of patches will follow. I've broken the 17 patches into
these three groups to facilitate review.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Wed, 31 Aug 2022 22:40:17 +0000 (17:40 -0500)]
net: ipa: track polled transactions with an ID
Add a transaction ID to track the first element in the transaction
array that has been polled. Advance the ID when we are releasing a
transaction.
Temporarily add warnings that verify that the first polled
transaction tracked by the ID matches the first element on the
polled list, both when polling and freeing.
Remove the temporary warnings added by the previous commit.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Wed, 31 Aug 2022 22:40:16 +0000 (17:40 -0500)]
net: ipa: track completed transactions with an ID
Add a transaction ID field to track the first element in the
transaction array that has completed but has not yet been polled.
Advance the ID when we are processing a transaction in the NAPI
polling loop (where completed transactions become polled).
Temporarily add warnings that verify that the first completed
transaction tracked by the ID matches the first element on the
completed list, both when pending and completing.
Remove the temporary warnings added by the previous commit.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Wed, 31 Aug 2022 22:40:15 +0000 (17:40 -0500)]
net: ipa: track pending transactions with an ID
Add a transaction ID field to track the first element in the
transaction array that is pending (sent to hardware) but not yet
complete. Advance the ID when a completion event for a channel
indicates that transactions have completed.
Temporarily add warnings that verify that the first pending
transaction tracked by the ID matches the first element on the
pending list, both when pending and completing, as well as when
resetting the channel.
Remove the temporary warnings added by the previous commit.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Wed, 31 Aug 2022 22:40:14 +0000 (17:40 -0500)]
net: ipa: track committed transactions with an ID
Add a transaction ID field to track the first element in a channel's
transaction array that has been committed, but not yet passed to the
hardware. Advance the ID when the hardware is notified via doorbell
that TREs from a transaction are ready for consumption.
Temporarily add warnings that verify that the first committed
transaction tracked by the ID matches the first element on the
committed list, both when committing and pending (at doorbell).
Remove the temporary warnings added by the previous commit.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Wed, 31 Aug 2022 22:40:13 +0000 (17:40 -0500)]
net: ipa: track allocated transactions with an ID
Transactions for a channel are now managed in an array, with a free
transaction ID indicating which is the next one free.
Add another transaction ID field to track the first element in the
array that has been allocated. Advance it when a transaction is
committed (because that is when that transaction leaves allocated
state).
Temporarily add warnings that verify that the first allocated
transaction tracked by the ID matches the first element on the
allocated list, both when allocating and committing a transaction.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder [Wed, 31 Aug 2022 22:40:12 +0000 (17:40 -0500)]
net: ipa: use an array for transactions
Transactions are always allocated one at a time. The maximum number
of them we could ever need occurs if each TRE is assigned to a
transaction. So a channel requires no more transactions than the
number of TREs in its transfer ring. That number is known to be a
power-of-2 less than 65536.
The transaction pool abstraction is used for other things, but for
transactions we can use a simple array of transaction structures,
and use a free index to indicate which entry in the array is the
next one free for allocation.
By having the number of elements in the array be a power-of-2, we
can use an ever-incrementing 16-bit free index, and use it modulo
the array size. Distinguish a "trans_id" (whose value can exceed
the number of entries in the transaction array) from a "trans_index"
(which is less than the number of entries).
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 2 Sep 2022 10:37:27 +0000 (11:37 +0100)]
Merge branch 'lan966x-make-reset-optional'
Michael Walle says:
====================
net: lan966x: make reset optional
This is the remaining part of the reset rework on the LAN966x targetting
the netdev tree.
The former series can be found at:
https://lore.kernel.org/lkml/
20220826115607.1148489-1-michael@walle.cc/
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Walle [Wed, 31 Aug 2022 11:18:55 +0000 (13:18 +0200)]
net: lan966x: make reset optional
There is no dedicated reset for just the switch core. The reset which
is used up until now, is more of a global reset, resetting almost the
whole SoC and cause spurious errors by doing so. Make it possible to
handle the reset elsewhere and make the reset optional.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Walle [Wed, 31 Aug 2022 11:18:54 +0000 (13:18 +0200)]
dt-bindings: net: sparx5: don't require a reset line
Make the reset line optional. It turns out, there is no dedicated reset
for the switch. Instead, the reset which was used up until now, was kind
of a global reset. This is now handled elsewhere, thus don't require a
reset.
Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wolfram Sang [Tue, 30 Aug 2022 20:14:53 +0000 (22:14 +0200)]
wifi: move from strlcpy with unused retval to strscpy
Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.
Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220830201457.7984-2-wsa+renesas@sang-engineering.com