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Felix Fietkau [Wed, 8 Apr 2020 16:10:35 +0000 (18:10 +0200)]
mt76: mt7615: set hw scan limits only for firmware with offload support
They do not apply to software scan
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Thu, 9 Apr 2020 09:51:17 +0000 (11:51 +0200)]
mt76: mt7615: disable hw/sched scan ops for non-offload firmware
Avoid having to attempt hw scan and fall back to software for every scan
on devices/firmware without hw scan support
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Wed, 8 Apr 2020 12:20:39 +0000 (14:20 +0200)]
mt76: mt7663: fix aggr range entry in debugfs
Fix register definitions for aggr range counter registers for mt7663
chipset
Fixes:
f40ac0f3d3c0 ("mt76: mt7615: introduce mt7663e support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Mon, 6 Apr 2020 21:56:30 +0000 (23:56 +0200)]
mt76: mt7615: fix possible division by 0 in mt7615_mac_update_mib_stats
Check that val is not zero before aggr_per estimation in order to avoid a
possible division by 0
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Mon, 6 Apr 2020 12:03:06 +0000 (14:03 +0200)]
mt76: mt76x2: disable merge of OTP ROM data by default
The reference driver does not seem to enable it by default, only under certain
conditions, e.g. when a .bin file is loaded.
Make it opt-in via a device tree property for now, in case it is needed on some
boards.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Mon, 6 Apr 2020 12:01:56 +0000 (14:01 +0200)]
mt76: mt7603: disable merge of OTP ROM data by default
The reference driver does not seem to enable it by default, only under certain
conditions, e.g. when a .bin file is loaded.
Make it opt-in via a device tree property for now, in case it is needed on some
boards.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Mon, 6 Apr 2020 09:14:56 +0000 (11:14 +0200)]
mt76: mt7615: add support for applying tx DPD calibration from EEPROM
When the EEPROM data is read from flash, it can contain tx DPD calibration
data. Add support for sending the data to the firmware.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Mon, 30 Mar 2020 13:02:45 +0000 (15:02 +0200)]
mt76: mt7615: add support for applying DC offset calibration from EEPROM
When the EEPROM data is read from flash, it can contain DC offset calibration
data. Add support for sending the data to the firmware.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Mon, 6 Apr 2020 08:19:48 +0000 (10:19 +0200)]
mt76: mt7615: disable merge of OTP ROM data by default
The reference driver does not seem to enable it by default, only under certain
conditions, e.g. when a .bin file is loaded.
Make it opt-in via a device tree property for now, in case it is needed on some
boards.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Mon, 6 Apr 2020 10:16:22 +0000 (12:16 +0200)]
dt-bindings: net: wireless: mt76: document mediatek,eeprom-merge-otp property
It is used to enable merging of Flash EEPROM data with OTP ROM calibration.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Markus Elfring [Sun, 5 Apr 2020 14:45:48 +0000 (16:45 +0200)]
mt76: mt7615: Delete an error message in mt7622_wmac_probe()
The function “platform_get_irq” can log an error already.
Thus omit a redundant message for the exception handling in the
calling function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Fri, 3 Apr 2020 19:01:56 +0000 (21:01 +0200)]
mt76: mt7615: do not always reset the dfs state setting the channel
mac80211/hostapd runs mt7615_set_channel with the same channel
parameters sending multiple rdd commands overwriting the previous ones.
This behaviour is causing tpt issues on dfs channels.
Fix the issue checking new channel freq/width with the running one.
Fixes:
5dabdf71e94e ("mt76: mt7615: add multiple wiphy support to the dfs support code")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Fri, 3 Apr 2020 09:09:16 +0000 (17:09 +0800)]
mt76: mt7663: correct the name of the rom patch
Rom patch is shared between Bluetooth and Wifi devices, so correct the
naming to allow two drivers to share the same file.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 18:18:56 +0000 (20:18 +0200)]
mt76: mt7615: add address parameter to mt7615_eeprom_init
Introduce address parameter to mt7615_eeprom_init routine in order to be
reused adding usb support to mt7615 driver
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 18:18:55 +0000 (20:18 +0200)]
mt76: mt7615: introduce mt7615_wtbl_desc data structure
Generalize mt7615_rate_desc introducing mt7615_wtbl_desc and
mt7615_key_desc data structures in order to configure the hw wtbl
in a non-atomic context for usb devices
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 18:18:54 +0000 (20:18 +0200)]
mt76: mt7615: rework wtbl key configuration
Remove key dependency from mt7615_mac_wtbl_update_key and export
mt7615_mac_wtbl_update_key, mt7615_mac_wtbl_update_pk and
mt7615_mac_wtbl_update_cipher in order to reuse them in usb code.
Move mt7615_mac_get_cipher in mac.h
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 18:18:53 +0000 (20:18 +0200)]
mt76: mt76u: rely on mt7622 queue scheme for mt7663u
Rely on the mt7622 endpoint definitions for mt7663u
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 18:18:52 +0000 (20:18 +0200)]
mt76: mt7615: move mt7615_mac_wtbl_addr in mac.h
Move mt7615_mac_wtbl_addr in mac.h and add inline qualifier in order to
be reused adding usb support to mt7615 driver
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 18:18:51 +0000 (20:18 +0200)]
mt76: mt7615: introduce __mt7663_load_firmware routine
Introduce __mt7663_load_firmware routine to load firmware for usb
devices.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 18:18:50 +0000 (20:18 +0200)]
mt76: mt7615: introduce mt7615_mac_update_rate_desc routine
Move register configuration out of mt7615_mac_set_rates since usb
driver can't access device register in interrupt context. Introduce
mt7615_mac_update_rate_desc routine to report rate info to
mt7615_mac_set_rates
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 18:18:49 +0000 (20:18 +0200)]
mt76: mt7615: introduce mt7663u support to mt7615_write_txwi
Extend mt7615_write_txwi routine to support usb txwi configuration
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 18:18:48 +0000 (20:18 +0200)]
mt76: add headroom and tailroom to mt76_mcu_ops data structure
Introduce headroom and tailroom to mt76_mcu_ops data structure in order
to unify the routine used for mcu message allocation. This is a
preliminary patch to add mt7663u support
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Thu, 2 Apr 2020 13:06:42 +0000 (15:06 +0200)]
mt76: mt7615: remove unnecessary register operations
Remove mt76_wr(dev, MT_CSR(0x010), 0x8208) that would cause
MT_PCIE_IRQ_ENABLE to be disabled; MT_PCIE_IRQ_ENABLE should always keep
on enabled when the driver is running.
0x44064 is a not existing address
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 13:06:41 +0000 (15:06 +0200)]
mt76: mt7615: introduce rlm tlv in bss_info mcu command
Introduce rlm tlv header in bss_info mcu command in order to
inform the mcu about operating channel. Rlm header is necessary only if
the mcu is running low power functionalities (e.g offloaded scan)
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Thu, 2 Apr 2020 13:06:40 +0000 (15:06 +0200)]
mt76: mt7615: introduce BSS absence event
Introduce BSS absence event that is reported when the fw
is leaving or entering current operational channel.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 13:06:39 +0000 (15:06 +0200)]
mt76: mt7615: introduce scheduled scan support
Introduce scheduled scan support for mt7663e devices
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 13:06:38 +0000 (15:06 +0200)]
mt76: mt7615: introduce hw scan support
Introduce hw scan support to mt7663e driver
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Thu, 2 Apr 2020 13:06:37 +0000 (15:06 +0200)]
mt76: mt7663: keep Rx filters as the default
Keep Rx filters default value if the firmware supports offload and
low power features.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 13:06:36 +0000 (15:06 +0200)]
mt76: mt7615: introduce mt7615_mcu_set_channel_domain mcu command
Introduce mt7615_mcu_set_channel_domain routines in order to instruct
the mcu about supported band/channels. This is a preliminary patch to
add hw scan support to mt7663e driver
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 13:06:35 +0000 (15:06 +0200)]
mt76: mt7615: add ethool support to mt7663 driver
Report n9 firmware version using ethtool
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 13:06:34 +0000 (15:06 +0200)]
mt76: mt7663: disable RDD commands
Disable dfs RDD mcu commands for mt7663 driver since they are not
currently supported by the 7663 firmware
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 13:06:33 +0000 (15:06 +0200)]
mt76: mt7615: make scs configurable per phy
Make scs configurable per phy since most of the chipsets do not
support dbdc
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 13:06:32 +0000 (15:06 +0200)]
mt76: mt7663: enable nf estimation
Enable Noise floor estimation for mt7663 driver
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Thu, 2 Apr 2020 13:06:31 +0000 (15:06 +0200)]
mt76: mt7663: fix mt7615_mac_cca_stats_reset routine
Fix PHYMUX_5 register definition for mt7663 in
mt7615_mac_cca_stats_reset routine
Fixes:
f40ac0f3d3c0 ("mt76: mt7615: introduce mt7663e support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Ryder Lee [Tue, 31 Mar 2020 06:51:38 +0000 (14:51 +0800)]
mt76: mt7615: add more useful Tx mib counters
Add ba_miss_cnt and ampdu_per in mib_stats.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Ryder Lee [Tue, 31 Mar 2020 06:51:37 +0000 (14:51 +0800)]
mt76: mt7615: cleanup mib related defines and structs
Simplify mib macros and use proper type for related counters.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Ryder Lee [Tue, 31 Mar 2020 06:51:36 +0000 (14:51 +0800)]
mt76: mt7615: enable aggr_stats for both phy
Use bottom half of aggr_stats for second phy.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Ryder Lee [Tue, 31 Mar 2020 06:51:35 +0000 (14:51 +0800)]
mt76: mt7615: modify mt7615_ampdu_stat_read for each phy
This is a preliminary patch to add more Tx counters.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Pawel Dembicki [Wed, 25 Mar 2020 05:55:23 +0000 (06:55 +0100)]
mt76: mt76x0: pci: add mt7610 PCI ID
Add mt7610 PCI id found on D-Link DWR-960 to pci_device_id table.
Run-tested on D-Link DWR-960 with no-name half-size mPCIE card
with mt7610e.
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Sat, 21 Mar 2020 15:14:42 +0000 (16:14 +0100)]
mt76: mt76x2u: introduce Mercury UD13 support
Introduce Mercury UD13 dual-band dongle support to mt76x2u driver
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Matthew Garrett [Wed, 18 Mar 2020 23:07:48 +0000 (16:07 -0700)]
mt76: mt76x02u: Add support for newer versions of the XBox One wifi adapter
The current version has a new USB ID and reports as an 0x7632 device.
Adding the IDs results in it working out of the box.
Signed-off-by: Matthew Garrett <mjg59@google.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Sun, 16 Feb 2020 15:08:58 +0000 (16:08 +0100)]
mt76: mt76x02: fix handling MCU timeouts during hw restart
If a MCU timeout occurs before a hw restart completes, another hw restart
is scheduled, and the station state gets corrupted.
To speed up dealing with that, do not issue any MCU commands after the first
timeout, and defer handling timeouts until the reset has completed.
Also ignore errors in MCU commands during start/config to avoid making user
space fail on this condition. If it happens, another restart is scheduled
quickly, and that usually recovers the hardware properly.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Pali Rohár [Fri, 8 May 2020 19:51:39 +0000 (21:51 +0200)]
ipw2x00: Fix comment for CLOCK_BOOTTIME constant
Correct name of constant is CLOCK_BOOTTIME and not CLOCK_BOOTIME.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200508195139.20078-1-pali@kernel.org
Gustavo A. R. Silva [Thu, 7 May 2020 19:26:47 +0000 (14:26 -0500)]
rndis_wlan: Replace zero-length array with flexible-array
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200507192647.GA16710@embeddedor
Gustavo A. R. Silva [Thu, 7 May 2020 19:19:26 +0000 (14:19 -0500)]
qtnfmac: Replace zero-length array with flexible-array
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200507191926.GA15970@embeddedor
Gustavo A. R. Silva [Thu, 7 May 2020 19:02:10 +0000 (14:02 -0500)]
prism54: Replace zero-length array with flexible-array
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200507190210.GA15375@embeddedor
Gustavo A. R. Silva [Thu, 7 May 2020 18:59:14 +0000 (13:59 -0500)]
mwl8k: Replace zero-length array with flexible-array
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200507185914.GA15124@embeddedor
Gustavo A. R. Silva [Thu, 7 May 2020 18:55:29 +0000 (13:55 -0500)]
iwlegacy: Replace zero-length array with flexible-array
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200507185529.GA14639@embeddedor
Gustavo A. R. Silva [Thu, 7 May 2020 18:54:51 +0000 (13:54 -0500)]
ipw2x00: Replace zero-length array with flexible-array
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200507185451.GA14603@embeddedor
Gustavo A. R. Silva [Tue, 5 May 2020 23:52:05 +0000 (18:52 -0500)]
rndis_wlan: Remove logically dead code
caps_buf is always of size sizeof(*caps) because
sizeof(caps->auth_encr_pair) * 16 is always zero. Notice
that when using zero-length arrays, sizeof evaluates to zero[1].
So, the code introduced by
commit
0308383f9591 ("rndis_wlan: get max_num_pmkids from device")
is logically dead, hence is never executed and can be removed. As a
consequence, the rest of the related code can be refactored a bit.
Notice that this code has been out there since March 2010.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200505235205.GA18539@embeddedor
Link: https://lore.kernel.org/r/20200507110741.37757-1-yanaijie@huawei.com
Jason Yan [Fri, 8 May 2020 07:43:51 +0000 (15:43 +0800)]
brcmfmac: remove Comparison to bool in brcmf_p2p_send_action_frame()
Fix the following coccicheck warning:
drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:1785:5-8:
WARNING: Comparison to bool
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Chi-hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200508074351.19193-1-yanaijie@huawei.com
Chen Zhou [Fri, 8 May 2020 01:32:49 +0000 (09:32 +0800)]
brcmfmac: make non-global functions static
Fix sparse warning:
drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:2206:5:
warning: symbol 'brcmf_p2p_get_conn_idx' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Reviewed-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200508013249.95196-1-chenzhou10@huawei.com
Soontak Lee [Wed, 6 May 2020 13:03:21 +0000 (08:03 -0500)]
brcmfmac: Use seq/seq_len and set iv_initialize when plumbing of rxiv in (GTK) keys
When plumbing rxiv for (GTK) keys, current code does not use seq/seq_len
when present nor set iv_initialized for iovar wsec_key. This could
result in missing broadcast traffic after GTK rekey. The fix is setting
iv_initialized and using seq/seq_len for iovar wsec_key.
Signed-off-by: Soontak Lee <soontak.lee@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1588770201-54361-4-git-send-email-wright.feng@cypress.com
Ryohei Kondo [Wed, 6 May 2020 13:03:20 +0000 (08:03 -0500)]
brcmfmac: use actframe_abort to cancel ongoing action frame
The driver sends an action frame down and waits for dwell time to be
completed or aborted before sending out the next action frame.
Driver issues "scan abort" to cancel the current time slot, but this
doesn't have any effect because, we are not using scan engine for
sending action frame.
Fix is to use "actframe_abort" to cancels the current action frame.
Signed-off-by: Ryohei Kondo <ryohei.kondo@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1588770201-54361-3-git-send-email-wright.feng@cypress.com
Jia-Shyr Chuang [Wed, 6 May 2020 13:03:19 +0000 (08:03 -0500)]
brcmfmac: set security after reiniting interface
Host driver parses and sets security params into FW passed by
supplicant. This has to be done after reiniting interface in the
firmware.
Signed-off-by: Jia-Shyr Chuang <joseph.chuang@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1588770201-54361-2-git-send-email-wright.feng@cypress.com
Pramod Prakash [Tue, 5 May 2020 06:51:27 +0000 (01:51 -0500)]
brcmfmac: fix 802.1d priority to ac mapping for pcie dongles
802.1d defines 0,3 for BE and 1,2 for BK. In pcie dongles, 0 & 3 are
mapped to 0 and 1,2 are mapped to 1. This change corrects this mapping,
so that BE & BK are given access precedence accordingly by pcie dongles.
Signed-off-by: Pramod Prakash <pramod.prakash@cypress.com>
Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1588661487-21884-3-git-send-email-chi-hsien.lin@cypress.com
Saravanan Shanmugham [Tue, 5 May 2020 06:51:26 +0000 (01:51 -0500)]
brcmfmac: map 802.1d priority to precedence level based on AP WMM params
In WLAN, priority among various access categories of traffic is
always set by the AP using WMM parameters and this may not always
follow the standard 802.1d priority.
In this change, priority is adjusted based on the AP WMM params
received as part of the Assoc Response and the same is later used
to map the priority of all incoming traffic.
In a specific scenario where EDCA parameters are configured to be same
for all ACs, use the default FW priority definition to avoid queuing
packets of all ACs to the same priority queue.
This change fixes the following 802.11 certification tests:
* 11n - 5.2.31 ACM Bit Conformance test
* 11n - 5.2.32 AC Parameter Modification test
* 11ac - 5.2.33 TXOP Limit test
Signed-off-by: Saravanan Shanmugham <saravanan.shanmugham@cypress.com>
Signed-off-by: Justin Li <justin.li@cypress.com>
Signed-off-by: Madhan Mohan R <madhanmohan.r@cypress.com>
Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1588661487-21884-2-git-send-email-chi-hsien.lin@cypress.com
Eric Dumazet [Thu, 7 May 2020 17:05:39 +0000 (10:05 -0700)]
net: relax SO_TXTIME CAP_NET_ADMIN check
Now sch_fq has horizon feature, we want to allow QUIC/UDP applications
to use EDT model so that pacing can be offloaded to the kernel (sch_fq)
or the NIC.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 8 May 2020 01:11:07 +0000 (18:11 -0700)]
Merge branch 'bonding-report-transmit-status-to-callers'
Eric Dumazet says:
====================
bonding: report transmit status to callers
First patches cleanup netpoll, and make sure it provides tx status to its users.
Last patch changes bonding to not pretend packets were sent without error.
By providing more accurate status, TCP stack can avoid adding more
packets if the slave qdisc is already full.
This came while testing latest horizon feature in sch_fq, with
very low pacing rate flows, but should benefit hosts under stress.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 7 May 2020 16:32:22 +0000 (09:32 -0700)]
bonding: propagate transmit status
Currently, bonding always returns NETDEV_TX_OK to its caller.
It is worth trying to be more accurate : TCP for instance
can have different recovery strategies if it can have more
precise status, if packet was dropped by slave qdisc.
This is especially important when host is under stress.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 7 May 2020 16:32:21 +0000 (09:32 -0700)]
netpoll: accept NULL np argument in netpoll_send_skb()
netpoll_send_skb() callers seem to leak skb if
the np pointer is NULL. While this should not happen, we
can make the code more robust.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 7 May 2020 16:32:20 +0000 (09:32 -0700)]
netpoll: netpoll_send_skb() returns transmit status
Some callers want to know if the packet has been sent or
dropped, to inform upper stacks.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 7 May 2020 16:32:19 +0000 (09:32 -0700)]
netpoll: move netpoll_send_skb() out of line
There is no need to inline this helper, as we intend to add more
code in this function.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 7 May 2020 16:32:18 +0000 (09:32 -0700)]
netpoll: remove dev argument from netpoll_send_skb_on_dev()
netpoll_send_skb_on_dev() can get the device pointer directly from np->dev
Rename it to __netpoll_send_skb()
Following patch will move netpoll_send_skb() out-of-line.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Thu, 7 May 2020 14:34:30 +0000 (15:34 +0100)]
net: phy: fix less than zero comparison with unsigned variable val
The unsigned variable val is being checked for an error by checking
if it is less than zero. This can never occur because val is unsigned.
Fix this by making val a plain int.
Addresses-Coverity: ("Unsigned compared against zero")
Fixes:
bdbdac7649fa ("ethtool: provide UAPI for PHY master/slave configuration.")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
YueHaibing [Thu, 7 May 2020 14:24:06 +0000 (16:24 +0200)]
net/smc: remove set but not used variables 'del_llc, del_llc_resp'
Fixes gcc '-Wunused-but-set-variable' warning:
net/smc/smc_llc.c: In function 'smc_llc_cli_conf_link':
net/smc/smc_llc.c:753:31: warning:
variable 'del_llc' set but not used [-Wunused-but-set-variable]
struct smc_llc_msg_del_link *del_llc;
^
net/smc/smc_llc.c: In function 'smc_llc_process_srv_delete_link':
net/smc/smc_llc.c:1311:33: warning:
variable 'del_llc_resp' set but not used [-Wunused-but-set-variable]
struct smc_llc_msg_del_link *del_llc_resp;
^
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
zhang kai [Thu, 7 May 2020 03:08:30 +0000 (11:08 +0800)]
tcp: tcp_mark_head_lost is only valid for sack-tcp
so tcp_is_sack/reno checks are removed from tcp_mark_head_lost.
Signed-off-by: zhang kai <zhangkaiheb@126.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jacob Keller [Thu, 7 May 2020 00:58:27 +0000 (17:58 -0700)]
net: remove newlines in NL_SET_ERR_MSG_MOD
The NL_SET_ERR_MSG_MOD macro is used to report a string describing an
error message to userspace via the netlink extended ACK structure. It
should not have a trailing newline.
Add a cocci script which catches cases where the newline marker is
present. Using this script, fix the handful of cases which accidentally
included a trailing new line.
I couldn't figure out a way to get a patch mode working, so this script
only implements context, report, and org.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 8 May 2020 00:51:03 +0000 (17:51 -0700)]
Merge branch 'ti-am65x-cpts-follow-up-dt-bindings-update'
Grygorii Strashko says:
====================
net: ethernet: ti: am65x-cpts: follow up dt bindings update
This series is follow update for TI A65x/J721E Common platform time sync (CPTS)
driver [1] to implement DT bindings review comments from
Rob Herring <robh@kernel.org> [2].
- "reg" and "compatible" properties are made required for CPTS DT nodes which
also required to change K3 CPSW driver to use of_platform_device_create()
instead of of_platform_populate() for proper CPTS and MDIO initialization
- minor DT bindings format changes
- K3 CPTS example added to K3 MCU CPSW bindings
[1] https://lwn.net/Articles/819313/
[2] https://lwn.net/ml/linux-kernel/
20200505040419.GA8509@bogus/
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Grygorii Strashko [Wed, 6 May 2020 18:14:01 +0000 (21:14 +0300)]
arm64: dts: ti: k3-am65/j721e-mcu: update cpts node
Update CPTS node following DT binding update:
- add reg and compatible properties
- fix node name
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Grygorii Strashko [Wed, 6 May 2020 18:14:00 +0000 (21:14 +0300)]
dt-binding: net: ti: am65x-cpts: make reg and compatible required
This patch follows K3 CPTS review comments from Rob Herring
<robh@kernel.org>.
- "reg" and "compatible" properties are required now
- minor format changes
- K3 CPTS example added to K3 MCU CPSW bindings
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Grygorii Strashko [Wed, 6 May 2020 18:13:59 +0000 (21:13 +0300)]
net: ethernet: ti: am65-cpsw-nuss: use of_platform_device_create() for mdio
The MCU CPSW expected to populate only MDIO device, but follow up patches
will add "compatible" property to the MCU CPSW CPTS node which will cause
creation of CPTS device and MCU CPSW init failure. Hence, switch to use
of_platform_device_create() instead of of_platform_populate() for MDIO
device population.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 8 May 2020 00:40:02 +0000 (17:40 -0700)]
Merge branch 'hsr-hsr-code-refactoring'
Taehee Yoo says:
====================
hsr: hsr code refactoring
There are some unnecessary routine in the hsr module.
This patch removes these routines.
The first patch removes incorrect comment.
The second patch removes unnecessary WARN_ONCE() macro.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Ioana Ciornei [Wed, 6 May 2020 17:47:17 +0000 (20:47 +0300)]
dpaa2-eth: create a function to flush the XDP fds
Create an independent function that takes a particular frame queue and
an array of frame descriptors and tries to enqueue them until it hits
the maximum number fo retries. The same function will be used in the
next patch also on the XDP_TX path.
Also, create the dpaa2_eth_xdp_fds structure to incorporate the array of
FDs as well as the number of FDs already populated.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Taehee Yoo [Wed, 6 May 2020 15:47:45 +0000 (15:47 +0000)]
hsr: remove WARN_ONCE() in hsr_fill_frame_info()
When VLAN frame is being sent, hsr calls WARN_ONCE() because hsr doesn't
support VLAN. But using WARN_ONCE() is overdoing.
Using netdev_warn_once() is enough.
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ioana Ciornei [Tue, 5 May 2020 20:14:29 +0000 (23:14 +0300)]
soc: fsl: dpio: properly compute the consumer index
Mask the consumer index before using it. Without this, we would be
writing frame descriptors beyond the ring size supported by the QBMAN
block.
Fixes:
3b2abda7d28c ("soc: fsl: dpio: Replace QMAN array mode with ring mode enqueue")
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 8 May 2020 00:31:57 +0000 (17:31 -0700)]
Merge branch 'tc-gate-offload-for-SJA1105-DSA-switch'
Vladimir Oltean says:
====================
tc-gate offload for SJA1105 DSA switch
Expose the TTEthernet hardware features of the switch using standard
tc-flower actions: trap, drop, redirect and gate.
v1 was submitted at:
https://patchwork.ozlabs.org/project/netdev/cover/
20200503211035.19363-1-olteanv@gmail.com/
v2 was submitted at:
https://patchwork.ozlabs.org/project/netdev/cover/
20200503211035.19363-1-olteanv@gmail.com/
Changes in v3:
Made sure there are no compilation warnings when
CONFIG_NET_DSA_SJA1105_TAS or CONFIG_NET_DSA_SJA1105_VL are disabled.
Changes in v2:
Using a newly introduced dsa_port_from_netdev public helper.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Oltean [Tue, 5 May 2020 19:20:57 +0000 (22:20 +0300)]
docs: net: dsa: sja1105: document intended usage of virtual links
Add some verbiage describing how the hardware features of the switch are
exposed to users through tc-flower.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Oltean [Tue, 5 May 2020 19:20:56 +0000 (22:20 +0300)]
net: dsa: sja1105: implement tc-gate using time-triggered virtual links
Restrict the TTEthernet hardware support on this switch to operate as
closely as possible to IEEE 802.1Qci as possible. This means that it can
perform PTP-time-based ingress admission control on streams identified
by {DMAC, VID, PCP}, which is useful when trying to ensure the
determinism of traffic scheduled via IEEE 802.1Qbv.
The oddity comes from the fact that in hardware (and in TTEthernet at
large), virtual links always need a full-blown action, including not
only the type of policing, but also the list of destination ports. So in
practice, a single tc-gate action will result in all packets getting
dropped. Additional actions (either "trap" or "redirect") need to be
specified in the same filter rule such that the conforming packets are
actually forwarded somewhere.
Apart from the VL Lookup, Policing and Forwarding tables which need to
be programmed for each flow (virtual link), the Schedule engine also
needs to be told to open/close the admission gates for each individual
virtual link. A fairly accurate (and detailed) description of how that
works is already present in sja1105_tas.c, since it is already used to
trigger the egress gates for the tc-taprio offload (IEEE 802.1Qbv). Key
point here, we remember that the schedule engine supports 8
"subschedules" (execution threads that iterate through the global
schedule in parallel, and that no 2 hardware threads must execute a
schedule entry at the same time). For tc-taprio, each egress port used
one of these 8 subschedules, leaving a total of 4 subschedules unused.
In principle we could have allocated 1 subschedule for the tc-gate
offload of each ingress port, but actually the schedules of all virtual
links installed on each ingress port would have needed to be merged
together, before they could have been programmed to hardware. So
simplify our life and just merge the entire tc-gate configuration, for
all virtual links on all ingress ports, into a single subschedule. Be
sure to check that against the usual hardware scheduling conflicts, and
program it to hardware alongside any tc-taprio subschedule that may be
present.
The following scenarios were tested:
1. Quantitative testing:
tc qdisc add dev swp2 clsact
tc filter add dev swp2 ingress flower skip_sw \
dst_mac 42:be:24:9b:76:20 \
action gate index 1 base-time 0 \
sched-entry OPEN 1200 -1 -1 \
sched-entry CLOSE 1200 -1 -1 \
action trap
ping 192.168.1.2 -f
PING 192.168.1.2 (192.168.1.2) 56(84) bytes of data.
.............................
--- 192.168.1.2 ping statistics ---
948 packets transmitted, 467 received, 50.7384% packet loss, time 9671ms
2. Qualitative testing (with a phase-aligned schedule - the clocks are
synchronized by ptp4l, not shown here):
Receiver (sja1105):
tc qdisc add dev swp2 clsact
now=$(phc_ctl /dev/ptp1 get | awk '/clock time is/ {print $5}') && \
sec=$(echo $now | awk -F. '{print $1}') && \
base_time="$(((sec + 2) *
1000000000))" && \
echo "base time ${base_time}"
tc filter add dev swp2 ingress flower skip_sw \
dst_mac 42:be:24:9b:76:20 \
action gate base-time ${base_time} \
sched-entry OPEN 60000 -1 -1 \
sched-entry CLOSE 40000 -1 -1 \
action trap
Sender (enetc):
now=$(phc_ctl /dev/ptp0 get | awk '/clock time is/ {print $5}') && \
sec=$(echo $now | awk -F. '{print $1}') && \
base_time="$(((sec + 2) *
1000000000))" && \
echo "base time ${base_time}"
tc qdisc add dev eno0 parent root taprio \
num_tc 8 \
map 0 1 2 3 4 5 6 7 \
queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 \
base-time ${base_time} \
sched-entry S 01 50000 \
sched-entry S 00 50000 \
flags 2
ping -A 192.168.1.1
PING 192.168.1.1 (192.168.1.1): 56 data bytes
...
^C
--- 192.168.1.1 ping statistics ---
1425 packets transmitted, 1424 packets received, 0% packet loss
round-trip min/avg/max = 0.322/0.361/0.990 ms
And just for comparison, with the tc-taprio schedule deleted:
ping -A 192.168.1.1
PING 192.168.1.1 (192.168.1.1): 56 data bytes
...
^C
--- 192.168.1.1 ping statistics ---
33 packets transmitted, 19 packets received, 42% packet loss
round-trip min/avg/max = 0.336/0.464/0.597 ms
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Oltean [Tue, 5 May 2020 19:20:55 +0000 (22:20 +0300)]
net: dsa: sja1105: support flow-based redirection via virtual links
Implement tc-flower offloads for redirect, trap and drop using
non-critical virtual links.
Commands which were tested to work are:
# Send frames received on swp2 with a DA of 42:be:24:9b:76:20 to the
# CPU and to swp3. This type of key (DA only) when the port's VLAN
# awareness state is off.
tc qdisc add dev swp2 clsact
tc filter add dev swp2 ingress flower skip_sw dst_mac 42:be:24:9b:76:20 \
action mirred egress redirect dev swp3 \
action trap
# Drop frames received on swp2 with a DA of 42:be:24:9b:76:20, a VID
# of 100 and a PCP of 0.
tc filter add dev swp2 ingress protocol 802.1Q flower skip_sw \
dst_mac 42:be:24:9b:76:20 vlan_id 100 vlan_prio 0 action drop
Under the hood, all rules match on DMAC, VID and PCP, but when VLAN
filtering is disabled, those are set internally by the driver to the
port-based defaults. Because we would be put in an awkward situation if
the user were to change the VLAN filtering state while there are active
rules (packets would no longer match on the specified keys), we simply
deny changing vlan_filtering unless the list of flows offloaded via
virtual links is empty. Then the user can re-add new rules.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Oltean [Tue, 5 May 2020 19:20:54 +0000 (22:20 +0300)]
net: dsa: sja1105: make room for virtual link parsing in flower offload
Virtual links are a sja1105 hardware concept of executing various flow
actions based on a key extracted from the frame's DMAC, VID and PCP.
Currently the tc-flower offload code supports only parsing the DMAC if
that is the broadcast MAC address, and the VLAN PCP. Extract the key
parsing logic from the L2 policers functionality and move it into its
own function, after adding extra logic for matching on any DMAC and VID.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Oltean [Tue, 5 May 2020 19:20:53 +0000 (22:20 +0300)]
net: dsa: sja1105: add static tables for virtual links
This patch adds the register definitions for the:
- VL Lookup Table
- VL Policing Table
- VL Forwarding Table
- VL Forwarding Parameters Table
These are needed in order to perform TTEthernet operations: QoS
classification, flow-based policing and/or frame redirecting with the
switch.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Oltean [Tue, 5 May 2020 19:20:52 +0000 (22:20 +0300)]
net: dsa: introduce a dsa_port_from_netdev public helper
As its implementation shows, this is synonimous with calling
dsa_slave_dev_check followed by dsa_slave_to_port, so it is quite simple
already and provides functionality which is already there.
However there is now a need for these functions outside dsa_priv.h, for
example in drivers that perform mirroring and redirection through
tc-flower offloads (they are given raw access to the flow_cls_offload
structure), where they need to call this function on act->dev.
But simply exporting dsa_slave_to_port would make it non-inline and
would result in an extra function call in the hotpath, as can be seen
for example in sja1105:
Before:
000006dc <sja1105_xmit>:
{
6dc:
e92d4ff0 push {r4, r5, r6, r7, r8, r9, sl, fp, lr}
6e0:
e1a04000 mov r4, r0
6e4:
e591958c ldr r9, [r1, #1420] ; 0x58c <- Inline dsa_slave_to_port
6e8:
e1a05001 mov r5, r1
6ec:
e24dd004 sub sp, sp, #4
u16 tx_vid = dsa_8021q_tx_vid(dp->ds, dp->index);
6f0:
e1c901d8 ldrd r0, [r9, #24]
6f4:
ebfffffe bl 0 <dsa_8021q_tx_vid>
6f4: R_ARM_CALL dsa_8021q_tx_vid
u8 pcp = netdev_txq_to_tc(netdev, queue_mapping);
6f8:
e1d416b0 ldrh r1, [r4, #96] ; 0x60
u16 tx_vid = dsa_8021q_tx_vid(dp->ds, dp->index);
6fc:
e1a08000 mov r8, r0
After:
000006e4 <sja1105_xmit>:
{
6e4:
e92d4ff0 push {r4, r5, r6, r7, r8, r9, sl, fp, lr}
6e8:
e1a04000 mov r4, r0
6ec:
e24dd004 sub sp, sp, #4
struct dsa_port *dp = dsa_slave_to_port(netdev);
6f0:
e1a00001 mov r0, r1
{
6f4:
e1a05001 mov r5, r1
struct dsa_port *dp = dsa_slave_to_port(netdev);
6f8:
ebfffffe bl 0 <dsa_slave_to_port>
6f8: R_ARM_CALL dsa_slave_to_port
6fc:
e1a09000 mov r9, r0
u16 tx_vid = dsa_8021q_tx_vid(dp->ds, dp->index);
700:
e1c001d8 ldrd r0, [r0, #24]
704:
ebfffffe bl 0 <dsa_8021q_tx_vid>
704: R_ARM_CALL dsa_8021q_tx_vid
Because we want to avoid possible performance regressions, introduce
this new function which is designed to be public.
Suggested-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chen Zhou [Thu, 7 May 2020 13:26:39 +0000 (21:26 +0800)]
cxgb4: remove duplicate headers
Remove duplicate headers which are included twice.
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 7 May 2020 20:22:35 +0000 (13:22 -0700)]
Merge tag 'wireless-drivers-next-2020-05-07' of git://git./linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for v5.8
First set of patches for v5.8. Changes all over, ath10k apparently
seeing most new features this time. rtw88 also had lots of changes due
to preparation for new hardware support.
In this pull request there's also a new macro to include/linux/iopoll:
read_poll_timeout_atomic(). This is needed by rtw88 for atomic
polling.
Major changes:
ath11k
* add debugfs file for testing ADDBA and DELBA
* add 802.11 encapsulation offload on hardware support
* add htt_peer_stats_reset debugfs file
ath10k
* enable VHT160 and VHT80+80 modes
* enable radar detection in secondary segment
* sdio: disable TX complete indication to improve throughput
* sdio: decrease power consumption
* sdio: add HTT TX bundle support to increase throughput
* sdio: add rx bitrate reporting
ath9k
* improvements to AR9002 calibration logic
carl9170
* remove buggy P2P_GO support
p54usb
* add support for AirVasT USB stick
rtw88
* add support for antenna configuration
ti wlcore
* add support for AES_CMAC cipher
iwlwifi
* support for a few new FW API versions
* new hw configs
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 7 May 2020 20:21:12 +0000 (13:21 -0700)]
Merge branch 'Add-QRTR-MHI-client-driver'
Manivannan Sadhasivam says:
====================
Add QRTR MHI client driver
Here is the series adding MHI client driver support to Qualcomm IPC router
protocol. MHI is a newly added bus to kernel which is used to communicate to
external modems over a physical interface like PCI-E. This driver is used to
transfer the QMI messages between the host processor and external modems over
the "IPCR" channel.
For QRTR, this driver is just another driver acting as a transport layer like
SMD.
Currently this driver is needed to control the QCA6390 WLAN device from ath11k.
The ath11k MHI controller driver will take care of booting up QCA6390 and
bringing it to operating state. Later, this driver will be used to transfer QMI
messages over the MHI-IPCR channel.
The second patch of this series removes the ARCH_QCOM dependency for QRTR. This
is needed because the QRTR driver will be used with x86 machines as well to talk
to devices like QCA6390.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Manivannan Sadhasivam [Thu, 7 May 2020 12:53:06 +0000 (18:23 +0530)]
net: qrtr: Do not depend on ARCH_QCOM
IPC Router protocol is also used by external modems for exchanging the QMI
messages. Hence, it doesn't always depend on Qualcomm platforms. One such
instance is the QCA6390 WLAN device connected to x86 machine.
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Manivannan Sadhasivam [Thu, 7 May 2020 12:53:05 +0000 (18:23 +0530)]
net: qrtr: Add MHI transport layer
MHI is the transport layer used for communicating to the external modems.
Hence, this commit adds MHI transport layer support to QRTR for
transferring the QMI messages over IPC Router.
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Geert Uytterhoeven [Thu, 7 May 2020 11:42:05 +0000 (13:42 +0200)]
via-rhine: Add platform dependencies
The VIA Rhine Ethernet interface is only present on PCI devices or
VIA/WonderMedia VT8500/WM85xx SoCs. Add platform dependencies to the
VIA_RHINE config symbol, to avoid asking the user about it when
configuring a kernel without PCI or VT8500/WM85xx support.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Po Liu [Thu, 7 May 2020 10:57:38 +0000 (18:57 +0800)]
net:enetc: bug fix for qos sfi operate space after freed
'Dan Carpenter' reported:
This code frees "sfi" and then dereferences it on the next line:
> kfree(sfi);
> clear_bit(sfi->index, epsfp.psfp_sfi_bitmap);
This "sfi->index" should be "index".
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Po Liu <Po.Liu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jason Yan [Thu, 7 May 2020 11:09:05 +0000 (19:09 +0800)]
net: encx24j600: make encx24j600_hw_init() return void
This function always return 0 now, we can make it return void to
simplify the code. This fixes the following coccicheck warning:
drivers/net/ethernet/microchip/encx24j600.c:609:5-8: Unneeded variable:
"ret". Return "0" on line 653
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jason Yan [Thu, 7 May 2020 11:08:57 +0000 (19:08 +0800)]
net: mlx4: remove unneeded variable "err" in mlx4_en_ethtool_add_mac_rule()
Fix the following coccicheck warning:
drivers/net/ethernet/mellanox/mlx4/en_ethtool.c:1396:5-8: Unneeded
variable: "err". Return "0" on line 1411
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jason Yan [Thu, 7 May 2020 11:08:47 +0000 (19:08 +0800)]
net: tulip: de4x5: make PCI_signature() return void
This function always return 0 now, we can make it return void to
simplify the code. This fixes the following coccicheck warning:
drivers/net/ethernet/dec/tulip/de4x5.c:3908:11-17: Unneeded variable:
"status". Return "0" on line 3912
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jason Yan [Thu, 7 May 2020 11:08:36 +0000 (19:08 +0800)]
net: atheros: remove dead code in atl1c_resume()
This code has been marked dead for nearly 10 years. Remove it.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jason Yan [Thu, 7 May 2020 11:07:41 +0000 (19:07 +0800)]
b43: remove dead function b43_rssinoise_postprocess()
This function is dead for more than 10 years. Remove it.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Zheng Zengkai [Thu, 7 May 2020 08:03:26 +0000 (16:03 +0800)]
net: phy: Make iproc_mdio_resume static
Fix sparse warnings:
drivers/net/phy/mdio-bcm-iproc.c:182:5: warning:
symbol 'iproc_mdio_resume' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 7 May 2020 05:10:13 +0000 (22:10 -0700)]
Merge git://git./linux/kernel/git/netdev/net
Conflicts were all overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Thu, 7 May 2020 03:53:22 +0000 (20:53 -0700)]
Merge git://git./linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
1) Fix reference count leaks in various parts of batman-adv, from Xiyu
Yang.
2) Update NAT checksum even when it is zero, from Guillaume Nault.
3) sk_psock reference count leak in tls code, also from Xiyu Yang.
4) Sanity check TCA_FQ_CODEL_DROP_BATCH_SIZE netlink attribute in
fq_codel, from Eric Dumazet.
5) Fix panic in choke_reset(), also from Eric Dumazet.
6) Fix VLAN accel handling in bnxt_fix_features(), from Michael Chan.
7) Disallow out of range quantum values in sch_sfq, from Eric Dumazet.
8) Fix crash in x25_disconnect(), from Yue Haibing.
9) Don't pass pointer to local variable back to the caller in
nf_osf_hdr_ctx_init(), from Arnd Bergmann.
10) Wireguard should use the ECN decap helper functions, from Toke
Høiland-Jørgensen.
11) Fix command entry leak in mlx5 driver, from Moshe Shemesh.
12) Fix uninitialized variable access in mptcp's
subflow_syn_recv_sock(), from Paolo Abeni.
13) Fix unnecessary out-of-order ingress frame ordering in macsec, from
Scott Dial.
14) IPv6 needs to use a global serial number for dst validation just
like ipv4, from David Ahern.
15) Fix up PTP_1588_CLOCK deps, from Clay McClure.
16) Missing NLM_F_MULTI flag in gtp driver netlink messages, from
Yoshiyuki Kurauchi.
17) Fix a regression in that dsa user port errors should not be fatal,
from Florian Fainelli.
18) Fix iomap leak in enetc driver, from Dejin Zheng.
19) Fix use after free in lec_arp_clear_vccs(), from Cong Wang.
20) Initialize protocol value earlier in neigh code paths when
generating events, from Roman Mashak.
21) netdev_update_features() must be called with RTNL mutex in macsec
driver, from Antoine Tenart.
22) Validate untrusted GSO packets even more strictly, from Willem de
Bruijn.
23) Wireguard decrypt worker needs a cond_resched(), from Jason
Donenfeld.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (111 commits)
net: flow_offload: skip hw stats check for FLOW_ACTION_HW_STATS_DONT_CARE
MAINTAINERS: put DYNAMIC INTERRUPT MODERATION in proper order
wireguard: send/receive: use explicit unlikely branch instead of implicit coalescing
wireguard: selftests: initalize ipv6 members to NULL to squelch clang warning
wireguard: send/receive: cond_resched() when processing worker ringbuffers
wireguard: socket: remove errant restriction on looping to self
wireguard: selftests: use normal kernel stack size on ppc64
net: ethernet: ti: am65-cpsw-nuss: fix irqs type
ionic: Use debugfs_create_bool() to export bool
net: dsa: Do not leave DSA master with NULL netdev_ops
net: dsa: remove duplicate assignment in dsa_slave_add_cls_matchall_mirred
net: stricter validation of untrusted gso packets
seg6: fix SRH processing to comply with RFC8754
net: mscc: ocelot: ANA_AUTOAGE_AGE_PERIOD holds a value in seconds, not ms
net: dsa: ocelot: the MAC table on Felix is twice as large
net: dsa: sja1105: the PTP_CLK extts input reacts on both edges
selftests: net: tcp_mmap: fix SO_RCVLOWAT setting
net: hsr: fix incorrect type usage for protocol variable
net: macsec: fix rtnl locking issue
net: mvpp2: cls: Prevent buffer overflow in mvpp2_ethtool_cls_rule_del()
...
Pablo Neira Ayuso [Wed, 6 May 2020 18:34:50 +0000 (20:34 +0200)]
net: flow_offload: skip hw stats check for FLOW_ACTION_HW_STATS_DONT_CARE
This patch adds FLOW_ACTION_HW_STATS_DONT_CARE which tells the driver
that the frontend does not need counters, this hw stats type request
never fails. The FLOW_ACTION_HW_STATS_DISABLED type explicitly requests
the driver to disable the stats, however, if the driver cannot disable
counters, it bails out.
TCA_ACT_HW_STATS_* maintains the 1:1 mapping with FLOW_ACTION_HW_STATS_*
except by disabled which is mapped to FLOW_ACTION_HW_STATS_DISABLED
(this is 0 in tc). Add tc_act_hw_stats() to perform the mapping between
TCA_ACT_HW_STATS_* and FLOW_ACTION_HW_STATS_*.
Fixes:
319a1d19471e ("flow_offload: check for basic action hw stats type")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lukas Bulwahn [Wed, 6 May 2020 20:29:06 +0000 (22:29 +0200)]
MAINTAINERS: put DYNAMIC INTERRUPT MODERATION in proper order
Commit
9b038086f06b ("docs: networking: convert DIM to RST") added a new
file entry to DYNAMIC INTERRUPT MODERATION to the end, and not following
alphabetical order.
So, ./scripts/checkpatch.pl -f MAINTAINERS complains:
WARNING: Misordered MAINTAINERS entry - list file patterns in alphabetic
order
#5966: FILE: MAINTAINERS:5966:
+F: lib/dim/
+F: Documentation/networking/net_dim.rst
Reorder the file entries to keep MAINTAINERS nicely ordered.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>