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5 years agoath9k: report tx status on EOSP
Felix Fietkau [Mon, 30 Jul 2018 18:31:23 +0000 (21:31 +0300)]
ath9k: report tx status on EOSP

Fixes missed indications of end of U-APSD service period to mac80211

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath9k: clear potentially stale EOSP status bit in intermediate queues
Felix Fietkau [Mon, 30 Jul 2018 18:31:21 +0000 (21:31 +0300)]
ath9k: clear potentially stale EOSP status bit in intermediate queues

Prevents spurious ieee80211_sta_eosp calls.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath9k: fix moredata bit in PS buffered frame release
Felix Fietkau [Mon, 30 Jul 2018 18:31:19 +0000 (21:31 +0300)]
ath9k: fix moredata bit in PS buffered frame release

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath9k: don't run periodic and nf calibation at the same time
Felix Fietkau [Mon, 30 Jul 2018 18:31:17 +0000 (21:31 +0300)]
ath9k: don't run periodic and nf calibation at the same time

The checks already prevents periodic cal from being started while noise
floor calibration runs. It is missing checks for the other way around.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath9k_hw: set spectral scan enable bit on trigger for AR9003+
Felix Fietkau [Mon, 30 Jul 2018 18:31:15 +0000 (21:31 +0300)]
ath9k_hw: set spectral scan enable bit on trigger for AR9003+

AR9002 code and the QCA AR9003+ reference code do the same.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath6kl: replace GFP_ATOMIC with GFP_KERNEL in ath6kl_bmi_init()
Jia-Ju Bai [Fri, 27 Jul 2018 08:43:18 +0000 (16:43 +0800)]
ath6kl: replace GFP_ATOMIC with GFP_KERNEL in ath6kl_bmi_init()

ath6kl_bmi_init() is never called in atomic context.
It calls kzalloc() with GFP_ATOMIC, which is not necessary.
GFP_ATOMIC can be replaced with GFP_KERNEL.

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath10k: prevent active scans on potential unusable channels
Sven Eckelmann [Thu, 26 Jul 2018 13:59:48 +0000 (15:59 +0200)]
ath10k: prevent active scans on potential unusable channels

The QCA4019 hw1.0 firmware 10.4-3.2.1-00050 and 10.4-3.5.3-00053 (and most
likely all other) seem to ignore the WMI_CHAN_FLAG_DFS flag during the
scan. This results in transmission (probe requests) on channels which are
not "available" for transmissions.

Since the firmware is closed source and nothing can be done from our side
to fix the problem in it, the driver has to work around this problem. The
WMI_CHAN_FLAG_PASSIVE seems to be interpreted by the firmware to not
scan actively on a channel unless an AP was detected on it. Simple probe
requests will then be transmitted by the STA on the channel.

ath10k must therefore also use this flag when it queues a radar channel for
scanning. This should reduce the chance of an active scan when the channel
might be "unusable" for transmissions.

Fixes: e8a50f8ba44b ("ath10k: introduce DFS implementation")
Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath10k: fix parenthesis alignment
Kalle Valo [Mon, 30 Jul 2018 18:56:43 +0000 (21:56 +0300)]
ath10k: fix parenthesis alignment

These were recently introduced and found by checkpatch:

drivers/net/wireless/ath/ath10k/mac.c:6118: Alignment should match open parenthesis
drivers/net/wireless/ath/ath10k/mac.c:6121: Alignment should match open parenthesis
drivers/net/wireless/ath/ath10k/mac.c:6124: Alignment should match open parenthesis

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath10k: add debugfs file warm_hw_reset
Maharaja Kennadyrajan [Wed, 18 Jul 2018 13:34:20 +0000 (19:04 +0530)]
ath10k: add debugfs file warm_hw_reset

Debugfs support to do hardware warm reset with WMI command
WMI_PDEV_PARAM_PDEV_RESET for 10.4 and 10.2.4(if wmi
service is enabled in the firmware for backward compatibility).

This change is purely for debugging purpose when hardware hangs/mutes.

This hardware reset won't affect the connectivity but there will be small
pause in data traffic. Here we are doing BB/MAC level reset and hence
whenever the BB/MAC watchdog is triggered, it does a hardware_chip_reset.
So the target will be in the active state.

Below command used to warm reset the hardware.
echo 1 > /sys/kernel/debug/ieee80211/phyX/ath10k/warm_hw_reset

Tested in QCA988X with firmware ver 10.2.4.70.45
Tested in QCA4019 with firmware ver 10.4-3.2.1.1-00011

Signed-off-by: Maharaja Kennadyrajan <mkenna@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath10k: htt_tx: move lock into id_get function
Nicholas Mc Guire [Sat, 14 Jul 2018 17:38:20 +0000 (19:38 +0200)]
ath10k: htt_tx: move lock into id_get function

This is only code refactoring as all call sites of
ath10k_htt_tx_alloc_msdu_id() take the same lock it can be moved into the
id_get function and the assertion dropped.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath6kl: remove redundant variables netlen, orig_buf, orig_len, dropped and stats
Colin Ian King [Mon, 9 Jul 2018 13:17:20 +0000 (14:17 +0100)]
ath6kl: remove redundant variables netlen, orig_buf, orig_len, dropped and stats

Variables netlen, orig_buf, orig_len, dropped and stats are assigned values
but are never used hence they are redundant and can be removed.

Cleans up clang warnings:
warning: variable 'netlen' set but not used [-Wunused-but-set-variable]
warning: variable 'orig_buf' set but not used [-Wunused-but-set-variable]
warning: variable 'orig_len' set but not used [-Wunused-but-set-variable]
warning: variable 'dropped' set but not used [-Wunused-but-set-variable]
warning: variable 'stats' set but not used [-Wunused-but-set-variable]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath5k: remove redundant pointer rf
Colin Ian King [Mon, 9 Jul 2018 12:41:38 +0000 (13:41 +0100)]
ath5k: remove redundant pointer rf

Pointer rf is being assigned but is never used hence it is redundant
and can be removed.

Cleans up two clang warnings:
warning: variable 'rf' set but not used [-Wunused-but-set-variable]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath10k: remove redundant pointers 'dev' and 'noa'
Colin Ian King [Mon, 9 Jul 2018 12:34:46 +0000 (13:34 +0100)]
ath10k: remove redundant pointers 'dev' and 'noa'

Pointers dev and noa are being assigned but are never used hence they
are redundant and can be removed.

Cleans up clang warnings:
warning: variable 'dev' set but not used [-Wunused-but-set-variable]
warning: variable 'noa' set but not used [-Wunused-but-set-variable]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath10k: handle mgmt tx completion event
Rakesh Pillai [Wed, 25 Jul 2018 07:59:45 +0000 (10:59 +0300)]
ath10k: handle mgmt tx completion event

WCN3990 transmits management frames via WMI
with reference. Currently, with the management
tx completion not being handled, these frames are
not getting freed even after the transmission status
is returned by the firmware.

The transmitted management frames should be freed
when the firmware sends the over-the-air tx status of
the corresponding management frames.

Handle the wmi mgmt tx completion event and free
the corresponding management frame.

Tested HW: WCN3990
Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath10k: disable bundle mgmt tx completion event support
Surabhi Vishnoi [Wed, 25 Jul 2018 07:59:41 +0000 (10:59 +0300)]
ath10k: disable bundle mgmt tx completion event support

The tx completion of multiple mgmt frames can be bundled
in a single event and sent by the firmware to host, if this
capability is not disabled explicitly by the host. If the host
cannot handle the bundled mgmt tx completion, this capability
support needs to be disabled in the wmi init cmd, sent to the firmware.

Add the host capability indication flag in the wmi ready command,
to let firmware know the features supported by the host driver.
This field is ignored if it is not supported by firmware.

Set the host capability indication flag(i.e. host_capab) to zero,
for disabling the support of bundle mgmt tx completion. This will
indicate the firmware to send completion event for every mgmt tx
completion, instead of bundling them together and sending in a single
event.

Tested HW: WCN3990
Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1

Signed-off-by: Surabhi Vishnoi <svishnoi@codeaurora.org>
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath10k: support for multicast rate control
Pradeep Kumar Chitrapu [Wed, 25 Jul 2018 07:59:39 +0000 (10:59 +0300)]
ath10k: support for multicast rate control

Issues a wmi command to firmware when multicast rate change is received with the
new BSS_CHANGED_MCAST_RATE flag.  Also fixes the incorrect fixed_rate setting
for CCK rates which got introduced with addition of ath10k_rates_rev2 enum.

Tested on QCA9984 with firmware ver 10.4-3.6-00104

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoath10k: fix open brace location in ath10k_wmi_tlv_op_gen_dbglog_cfg()
Kalle Valo [Wed, 25 Jul 2018 07:59:37 +0000 (10:59 +0300)]
ath10k: fix open brace location in ath10k_wmi_tlv_op_gen_dbglog_cfg()

Fixes a recently added checkpatch warning:

wmi-tlv.c:2703: open brace '{' following function definitions go on the next line

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
5 years agoMerge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
Kalle Valo [Wed, 25 Jul 2018 07:50:54 +0000 (10:50 +0300)]
Merge ath-next from git://git./linux/kernel/git/kvalo/ath.git

ath.git patches for 4.19. Major changes:

wcn36xx

* fix WEP in client mode

wil6210

* add support for Talyn-MB (Talyn ver 2.0) device

* add support for enhanced DMA firmware feature

5 years agonet/sched: add skbprio scheduler
Nishanth Devarajan [Mon, 23 Jul 2018 14:07:41 +0000 (19:37 +0530)]
net/sched: add skbprio scheduler

Skbprio (SKB Priority Queue) is a queueing discipline that prioritizes packets
according to their skb->priority field. Under congestion, already-enqueued lower
priority packets will be dropped to make space available for higher priority
packets. Skbprio was conceived as a solution for denial-of-service defenses that
need to route packets with different priorities as a means to overcome DoS
attacks.

v5
*Do not reference qdisc_dev(sch)->tx_queue_len for setting limit. Instead set
default sch->limit to 64.

v4
*Drop Documentation/networking/sch_skbprio.txt doc file to move it to tc man
page for Skbprio, in iproute2.

v3
*Drop max_limit parameter in struct skbprio_sched_data and instead use
sch->limit.

*Reference qdisc_dev(sch)->tx_queue_len only once, during initialisation for
qdisc (previously being referenced every time qdisc changes).

*Move qdisc's detailed description from in-code to Documentation/networking.

*When qdisc is saturated, enqueue incoming packet first before dequeueing
lowest priority packet in queue - improves usage of call stack registers.

*Introduce and use overlimit stat to keep track of number of dropped packets.

v2
*Use skb->priority field rather than DS field. Rename queueing discipline as
SKB Priority Queue (previously Gatekeeper Priority Queue).

*Queueing discipline is made classful to expose Skbprio's internal priority
queues.

Signed-off-by: Nishanth Devarajan <ndev2021@gmail.com>
Reviewed-by: Sachin Paryani <sachin.paryani@gmail.com>
Reviewed-by: Cody Doucette <doucette@bu.edu>
Reviewed-by: Michel Machado <michel@digirati.com.br>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: phy: add GBit master / slave error detection
Heiner Kallweit [Sat, 21 Jul 2018 13:48:47 +0000 (15:48 +0200)]
net: phy: add GBit master / slave error detection

Certain PHY's have issues when operating in GBit slave mode and can
be forced to master mode. Examples are RTL8211C, also the Micrel PHY
driver has a DT setting to force master mode.
If two such chips are link partners the autonegotiation will fail.
Standard defines a self-clearing on read, latched-high bit to
indicate this error. Check this bit to inform the user.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'net-whitespace-cleanups'
David S. Miller [Tue, 24 Jul 2018 21:10:43 +0000 (14:10 -0700)]
Merge branch 'net-whitespace-cleanups'

Stephen Hemminger says:

====================
net whitespace cleanups

Ran script that I use to check for trailing whitespace and
blank lines at end of files across all files in net/ directory.
These are errors that checkpatch reports and git flags.

These are the resulting fixes broken up mostly by subsystem.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: remove blank lines at end of file
Stephen Hemminger [Tue, 24 Jul 2018 19:29:18 +0000 (12:29 -0700)]
net: remove blank lines at end of file

Several files have extra line at end of file.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agol2tp: remove trailing newline
Stephen Hemminger [Tue, 24 Jul 2018 19:29:17 +0000 (12:29 -0700)]
l2tp: remove trailing newline

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agobpfilter: remove trailing newline
Stephen Hemminger [Tue, 24 Jul 2018 19:29:16 +0000 (12:29 -0700)]
bpfilter: remove trailing newline

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodecnet: whitespace fixes
Stephen Hemminger [Tue, 24 Jul 2018 19:29:14 +0000 (12:29 -0700)]
decnet: whitespace fixes

Remove trailing whitespace and extra lines at EOF

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agox25: remove blank lines at EOF
Stephen Hemminger [Tue, 24 Jul 2018 19:29:13 +0000 (12:29 -0700)]
x25: remove blank lines at EOF

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoax25: remove blank line at EOF
Stephen Hemminger [Tue, 24 Jul 2018 19:29:12 +0000 (12:29 -0700)]
ax25: remove blank line at EOF

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoatm: remove blank lines at EOF
Stephen Hemminger [Tue, 24 Jul 2018 19:29:11 +0000 (12:29 -0700)]
atm: remove blank lines at EOF

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoila: remove blank lines at EOF
Stephen Hemminger [Tue, 24 Jul 2018 19:29:09 +0000 (12:29 -0700)]
ila: remove blank lines at EOF

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agosctp: whitespace fixes
Stephen Hemminger [Tue, 24 Jul 2018 19:29:08 +0000 (12:29 -0700)]
sctp: whitespace fixes

Remove blank line at EOF and trailing whitespace.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoxfrm: remove blank lines at EOF
Stephen Hemminger [Tue, 24 Jul 2018 19:29:06 +0000 (12:29 -0700)]
xfrm: remove blank lines at EOF

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agompls: remove trailing whitepace
Stephen Hemminger [Tue, 24 Jul 2018 19:29:05 +0000 (12:29 -0700)]
mpls: remove trailing whitepace

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agollc: fix whitespace issues
Stephen Hemminger [Tue, 24 Jul 2018 19:29:04 +0000 (12:29 -0700)]
llc: fix whitespace issues

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agords: remove trailing whitespace and blank lines
Stephen Hemminger [Tue, 24 Jul 2018 19:29:03 +0000 (12:29 -0700)]
rds: remove trailing whitespace and blank lines

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agowimax: remove blank lines at EOF
Stephen Hemminger [Tue, 24 Jul 2018 19:29:02 +0000 (12:29 -0700)]
wimax: remove blank lines at EOF

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agosched: fix trailing whitespace
Stephen Hemminger [Tue, 24 Jul 2018 19:29:01 +0000 (12:29 -0700)]
sched: fix trailing whitespace

Remove trailing whitespace and blank lines at EOF

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: remove redundant input checks in SIOCSIFTXQLEN case of dev_ifsioc
Tariq Toukan [Tue, 24 Jul 2018 10:53:00 +0000 (13:53 +0300)]
net: remove redundant input checks in SIOCSIFTXQLEN case of dev_ifsioc

The cited patch added a call to dev_change_tx_queue_len in
SIOCSIFTXQLEN case.
This obsoletes the new len comparison check done before the function call.
Remove it here.

For the desicion of keep/remove the negative value check, we examine the
range check in dev_change_tx_queue_len.
On 64-bit we will fail with -ERANGE.  The 32-bit int ifr_qlen will be sign
extended to 64-bits when it is passed into dev_change_tx_queue_len(). And
then for negative values this test triggers:

if (new_len != (unsigned int)new_len)
return -ERANGE;

because:
if (0xffffffffWHATEVER != 0x00000000WHATEVER)

On 32-bit the signed value will be accepted, changing behavior.

Therefore, the negative value check is kept.

Fixes: 3f76df198288 ("net: use dev_change_tx_queue_len() for SIOCSIFTXQLEN")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'cxgb4-collect-free-Tx-Rx-pages-and-page-pointers'
David S. Miller [Tue, 24 Jul 2018 17:12:22 +0000 (10:12 -0700)]
Merge branch 'cxgb4-collect-free-Tx-Rx-pages-and-page-pointers'

Rahul Lakkireddy says:

====================
cxgb4: collect free Tx/Rx pages and page pointers

Patch 1 collects number of free PSTRUCT page pointers in context
memory.

Patch 2 moves the collection logic for Tx/Rx free pages to common
code, since this information needs to be collected in vmcore device
dump as well.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocxgb4: move Tx/Rx free pages collection to common code
Rahul Lakkireddy [Tue, 24 Jul 2018 14:47:10 +0000 (20:17 +0530)]
cxgb4: move Tx/Rx free pages collection to common code

This information needs to be collected in vmcore device dump as well.
So, move to common code.

Fixes: fa145d5dfd61 ("cxgb4: display number of rx and tx pages free")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocxgb4: collect number of free PSTRUCT page pointers
Rahul Lakkireddy [Tue, 24 Jul 2018 14:47:09 +0000 (20:17 +0530)]
cxgb4: collect number of free PSTRUCT page pointers

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'mlxsw-Add-extack-messages-for-tc-flower'
David S. Miller [Tue, 24 Jul 2018 17:10:33 +0000 (10:10 -0700)]
Merge branch 'mlxsw-Add-extack-messages-for-tc-flower'

Ido Schimmel says:

====================
mlxsw: Add extack messages for tc flower

Nir says:

This patch set adds extack messages support to tc flower part of mlxsw.
The messages provide clear reasoning to failures, as some of the available
actions and keys are not supported in driver or HW and resources may get
exhausted.

The first patch deals with propagation of the extack pointer among the functions
dealing with key parsing and action sets handling.

Following patches 2-4 add appropriate messages across the different layers of
mlxsw tc flower implementation.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agomlxsw: spectrum_flower: Add extack messages
Nir Dotan [Tue, 24 Jul 2018 14:13:14 +0000 (17:13 +0300)]
mlxsw: spectrum_flower: Add extack messages

Return extack messages in order to explain failures
of unsupported actions, keys and invalid user input.

Signed-off-by: Nir Dotan <nird@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agomlxsw: spectrum_acl: Add extack messages
Nir Dotan [Tue, 24 Jul 2018 14:13:13 +0000 (17:13 +0300)]
mlxsw: spectrum_acl: Add extack messages

Return extack messages for failures in action set creation.
Messages provide reasons for not being able to implement
the action in HW.

Signed-off-by: Nir Dotan <nird@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agomlxsw: core_acl_flex_actions: Add extack messages
Nir Dotan [Tue, 24 Jul 2018 14:13:12 +0000 (17:13 +0300)]
mlxsw: core_acl_flex_actions: Add extack messages

Return extack messages for failures in action set creation.
Errors may occur when action is not currently supported or due
to lack of resources.

Signed-off-by: Nir Dotan <nird@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agomlxsw: spectrum_acl: Propagate extack pointer
Nir Dotan [Tue, 24 Jul 2018 14:13:11 +0000 (17:13 +0300)]
mlxsw: spectrum_acl: Propagate extack pointer

Propagate extack pointer in order to add extack messages for ACL.
In the follow-up patches, appropriate messages will be added
in various points.

Signed-off-by: Nir Dotan <nird@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonetlink: do not store start function in netlink_cb
Florian Westphal [Tue, 24 Jul 2018 10:47:56 +0000 (12:47 +0200)]
netlink: do not store start function in netlink_cb

->start() is called once when dump is being initialized, there is no
need to store it in netlink_cb.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge tag 'mac80211-next-for-davem-2018-07-24' of git://git.kernel.org/pub/scm/linux...
David S. Miller [Tue, 24 Jul 2018 17:00:54 +0000 (10:00 -0700)]
Merge tag 'mac80211-next-for-davem-2018-07-24' of git://git./linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Only a few things:
 * HE (802.11ax) support in HWSIM
 * bypass TXQ with NDP frames as they're special
 * convert ahash -> shash in lib80211 TKIP
 * avoid playing with tailroom counter defer unless
   needed to avoid issues in some cases
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agomac80211: restrict delayed tailroom needed decrement
Manikanta Pubbisetty [Tue, 10 Jul 2018 11:18:27 +0000 (16:48 +0530)]
mac80211: restrict delayed tailroom needed decrement

As explained in ieee80211_delayed_tailroom_dec(), during roam,
keys of the old AP will be destroyed and new keys will be
installed. Deletion of the old key causes
crypto_tx_tailroom_needed_cnt to go from 1 to 0 and the new key
installation causes a transition from 0 to 1.

Whenever crypto_tx_tailroom_needed_cnt transitions from 0 to 1,
we invoke synchronize_net(); the reason for doing this is to avoid
a race in the TX path as explained in increment_tailroom_need_count().
This synchronize_net() operation can be slow and can affect the station
roam time. To avoid this, decrementing the crypto_tx_tailroom_needed_cnt
is delayed for a while so that upon installation of new key the
transition would be from 1 to 2 instead of 0 to 1 and thereby
improving the roam time.

This is all correct for a STA iftype, but deferring the tailroom_needed
decrement for other iftypes may be unnecessary.

For example, let's consider the case of a 4-addr client connecting to
an AP for which AP_VLAN interface is also created, let the initial
value for tailroom_needed on the AP be 1.

* 4-addr client connects to the AP (AP: tailroom_needed = 1)
* AP will clear old keys, delay decrement of tailroom_needed count
* AP_VLAN is created, it takes the tailroom count from master
  (AP_VLAN: tailroom_needed = 1, AP: tailroom_needed = 1)
* Install new key for the station, assume key is plumbed in the HW,
  there won't be any change in tailroom_needed count on AP iface
* Delayed decrement of tailroom_needed count on AP
  (AP: tailroom_needed = 0, AP_VLAN: tailroom_needed = 1)

Because of the delayed decrement on AP iface, tailroom_needed count goes
out of sync between AP(master iface) and AP_VLAN(slave iface) and
there would be unnecessary tailroom created for the packets going
through AP_VLAN iface.

Also, WARN_ONs were observed while trying to bring down the AP_VLAN
interface:
(warn_slowpath_common) (warn_slowpath_null+0x18/0x20)
(warn_slowpath_null) (ieee80211_free_keys+0x114/0x1e4)
(ieee80211_free_keys) (ieee80211_del_virtual_monitor+0x51c/0x850)
(ieee80211_del_virtual_monitor) (ieee80211_stop+0x30/0x3c)
(ieee80211_stop) (__dev_close_many+0x94/0xb8)
(__dev_close_many) (dev_close_many+0x5c/0xc8)

Restricting delayed decrement to station interface alone fixes the problem
and it makes sense to do so because delayed decrement is done to improve
roam time which is applicable only for client devices.

Signed-off-by: Manikanta Pubbisetty <mpubbise@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
5 years agowireless/lib80211: Convert from ahash to shash
Kees Cook [Mon, 16 Jul 2018 03:52:26 +0000 (20:52 -0700)]
wireless/lib80211: Convert from ahash to shash

In preparing to remove all stack VLA usage from the kernel[1], this
removes the discouraged use of AHASH_REQUEST_ON_STACK in favor of
the smaller SHASH_DESC_ON_STACK by converting from ahash-wrapped-shash
to direct shash. The stack allocation will be made a fixed size in a
later patch to the crypto subsystem.

[1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
5 years agoMerge tag 'wireless-drivers-next-for-davem-2018-07-23' of git://git.kernel.org/pub...
David S. Miller [Tue, 24 Jul 2018 04:30:03 +0000 (21:30 -0700)]
Merge tag 'wireless-drivers-next-for-davem-2018-07-23' of git://git./linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.19

The first set of patches for 4.19. Only smaller features and bug
fixes, not really anything major. Also included are changes to
include/linux/bitfield.h, we agreed with Johannes that it makes sense
to apply them via wireless-drivers-next.

Major changes:

ath10k

* support channel 173

* fix spectral scan for QCA9984 and QCA9888 chipsets

ath6kl

* add support for Dell Wireless 1537

ti wlcore

* add support for runtime PM

* enable runtime PM autosuspend support

qtnfmac

* support changing MAC address

* enable source MAC address randomization support

libertas

* fix suspend and resume for SDIO cards

mt76

* add software DFS radar pattern detector for mt76x2 based devices
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'rds-ipv6'
David S. Miller [Tue, 24 Jul 2018 04:17:44 +0000 (21:17 -0700)]
Merge branch 'rds-ipv6'

Ka-Cheong Poon says:

====================
rds: IPv6 support

This patch set adds IPv6 support to the kernel RDS and related
modules.  Existing RDS apps using IPv4 address continue to run without
any problem.  New RDS apps which want to use IPv6 address can do so by
passing the address in struct sockaddr_in6 to bind(), connect() or
sendmsg().  And those apps also need to use the new IPv6 equivalents
of some of the existing socket options as the existing options use a
32 bit integer to store IP address.

All RDS code now use struct in6_addr to store IP address.  IPv4
address is stored as an IPv4 mapped address.

Header file changes

There are many data structures (RDS socket options) used by RDS apps
which use a 32 bit integer to store IP address. To support IPv6,
struct in6_addr needs to be used. To ensure backward compatibility, a
new data structure is introduced for each of those data structures
which use a 32 bit integer to represent an IP address. And new socket
options are introduced to use those new structures. This means that
existing apps should work without a problem with the new RDS module.
For apps which want to use IPv6, those new data structures and socket
options can be used. IPv4 mapped address is used to represent IPv4
address in the new data structures.

Internally, all RDS data structures which contain an IP address are
changed to use struct in6_addr to store the address. IPv4 address is
stored as an IPv4 mapped address. All the functions which take an IP
address as argument are also changed to use struct in6_addr.

RDS/RDMA/IB uses a private data (struct rds_ib_connect_private)
exchange between endpoints at RDS connection establishment time to
support RDMA. This private data exchange uses a 32 bit integer to
represent an IP address. This needs to be changed in order to support
IPv6. A new private data struct rds6_ib_connect_private is introduced
to handle this. To ensure backward compatibility, an IPv6 capable RDS
stack uses another RDMA listener port (RDS_CM_PORT) to accept IPv6
connection. And it continues to use the original RDS_PORT for IPv4 RDS
connections. When it needs to communicate with an IPv6 peer, it uses
the RDS_TCP_PORT to send the connection set up request.

RDS/TCP changes

TCP related code is changed to support IPv6.  Note that only an IPv6
TCP listener on port RDS_TCP_PORT is created as it can accept both
IPv4 and IPv6 connection requests.

IB/RDMA changes

The initial private data exchange between IB endpoints using RDMA is
changed to support IPv6 address instead, if the peer address is IPv6.
To ensure backward compatibility, annother RDMA listener port
(RDS_CM_PORT) is used to accept IPv6 connection. An IPv6 capable RDS
module continues to use the original RDS_PORT for IPv4 RDS
connections. When it needs to communicate with an IPv6 peer, it uses
the RDS_CM_PORT to send the connection set up request.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agords: Extend RDS API for IPv6 support
Ka-Cheong Poon [Tue, 24 Jul 2018 03:51:23 +0000 (20:51 -0700)]
rds: Extend RDS API for IPv6 support

There are many data structures (RDS socket options) used by RDS apps
which use a 32 bit integer to store IP address. To support IPv6,
struct in6_addr needs to be used. To ensure backward compatibility, a
new data structure is introduced for each of those data structures
which use a 32 bit integer to represent an IP address. And new socket
options are introduced to use those new structures. This means that
existing apps should work without a problem with the new RDS module.
For apps which want to use IPv6, those new data structures and socket
options can be used. IPv4 mapped address is used to represent IPv4
address in the new data structures.

v4: Revert changes to SO_RDS_TRANSPORT

Signed-off-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agords: Enable RDS IPv6 support
Ka-Cheong Poon [Tue, 24 Jul 2018 03:51:22 +0000 (20:51 -0700)]
rds: Enable RDS IPv6 support

This patch enables RDS to use IPv6 addresses. For RDS/TCP, the
listener is now an IPv6 endpoint which accepts both IPv4 and IPv6
connection requests.  RDS/RDMA/IB uses a private data (struct
rds_ib_connect_private) exchange between endpoints at RDS connection
establishment time to support RDMA. This private data exchange uses a
32 bit integer to represent an IP address. This needs to be changed in
order to support IPv6. A new private data struct
rds6_ib_connect_private is introduced to handle this. To ensure
backward compatibility, an IPv6 capable RDS stack uses another RDMA
listener port (RDS_CM_PORT) to accept IPv6 connection. And it
continues to use the original RDS_PORT for IPv4 RDS connections. When
it needs to communicate with an IPv6 peer, it uses the RDS_CM_PORT to
send the connection set up request.

v5: Fixed syntax problem (David Miller).

v4: Changed port history comments in rds.h (Sowmini Varadhan).

v3: Added support to set up IPv4 connection using mapped address
    (David Miller).
    Added support to set up connection between link local and non-link
    addresses.
    Various review comments from Santosh Shilimkar and Sowmini Varadhan.

v2: Fixed bound and peer address scope mismatched issue.
    Added back rds_connect() IPv6 changes.

Signed-off-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agords: Changing IP address internal representation to struct in6_addr
Ka-Cheong Poon [Tue, 24 Jul 2018 03:51:21 +0000 (20:51 -0700)]
rds: Changing IP address internal representation to struct in6_addr

This patch changes the internal representation of an IP address to use
struct in6_addr.  IPv4 address is stored as an IPv4 mapped address.
All the functions which take an IP address as argument are also
changed to use struct in6_addr.  But RDS socket layer is not modified
such that it still does not accept IPv6 address from an application.
And RDS layer does not accept nor initiate IPv6 connections.

v2: Fixed sparse warnings.

Signed-off-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'sched-introduce-chain-templates-support-with-offloading-to-mlxsw'
David S. Miller [Tue, 24 Jul 2018 03:44:13 +0000 (20:44 -0700)]
Merge branch 'sched-introduce-chain-templates-support-with-offloading-to-mlxsw'

Jiri Pirko says:

====================
sched: introduce chain templates support with offloading to mlxsw

For the TC clsact offload these days, some of HW drivers need
to hold a magic ball. The reason is, with the first inserted rule inside
HW they need to guess what fields will be used for the matching. If
later on this guess proves to be wrong and user adds a filter with a
different field to match, there's a problem. Mlxsw resolves it now with
couple of patterns. Those try to cover as many match fields as possible.
This aproach is far from optimal, both performance-wise and scale-wise.
Also, there is a combination of filters that in certain order won't
succeed.

Most of the time, when user inserts filters in chain, he knows right away
how the filters are going to look like - what type and option will they
have. For example, he knows that he will only insert filters of type
flower matching destination IP address. He can specify a template that
would cover all the filters in the chain.

This patchset is providing the possibility to user to provide such
template to kernel and propagate it all the way down to device
drivers.

See the examples below.

Create dummy device with clsact first:

There is no chain present by by default:

Add chain number 11 by explicit command:
chain parent ffff: chain 11

Add filter to chain number 12 which does not exist. That will create
implicit chain 12:
chain parent ffff: chain 11
chain parent ffff: chain 12

Delete both chains:

Add a chain with template of type flower allowing to insert rules matching
on last 2 bytes of destination mac address:

The chain with template is now showed in the list:
chain parent ffff: flower chain 0
  dst_mac 00:00:00:00:00:00/00:00:00:00:ff:ff
  eth_type ipv4

Add another chain (number 22) with template:
chain parent ffff: flower chain 0
  dst_mac 00:00:00:00:00:00/00:00:00:00:ff:ff
  eth_type ipv4
chain parent ffff: flower chain 22
  eth_type ipv4
  dst_ip 0.0.0.0/16

Add a filter that fits the template:

Addition of filters that does not fit the template would fail:
Error: cls_flower: Mask does not fit the template.
We have an error talking to the kernel, -1
Error: cls_flower: Mask does not fit the template.
We have an error talking to the kernel, -1

Additions of filters to chain 22:
Error: cls_flower: Mask does not fit the template.
We have an error talking to the kernel, -1
Error: cls_flower: Mask does not fit the template.
We have an error talking to the kernel, -1

---
v3->v4:
- patch 2:
  - new patch
- patch 3:
  - new patch, derived from the previous v3 chaintemplate obj patch
- patch 4:
  - only templates part as chains creation/deletion is now a separate patch
  - don't pass template priv as arg of "change" op
- patch 6:
  - rebased on top of flower cvlan patch and ip tos/ttl patch
- patch 7:
  - templave priv is no longer passed as an arg to "change" op
- patch 11:
  - split from the originally single patch
- patch 12:
  - split from the originally single patch
v2->v3:
- patch 7:
  - rebase on top of the reoffload patchset
- patch 8:
  - rebase on top of the reoffload patchset
v1->v2:
- patch 8:
  - remove leftover extack arg in fl_hw_create_tmplt()
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoselftests: forwarding: add tests for TC chain templates
Jiri Pirko [Mon, 23 Jul 2018 07:24:07 +0000 (09:24 +0200)]
selftests: forwarding: add tests for TC chain templates

Add basic sanity tests for TC chain templates.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoselftests: forwarding: add tests for TC chains creation adn destruction
Jiri Pirko [Mon, 23 Jul 2018 07:24:06 +0000 (09:24 +0200)]
selftests: forwarding: add tests for TC chains creation adn destruction

Add basic sanity tests for TC chains.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoselftests: forwarding: move shblock tc support check to a separate helper
Jiri Pirko [Mon, 23 Jul 2018 07:24:05 +0000 (09:24 +0200)]
selftests: forwarding: move shblock tc support check to a separate helper

The shared block support is only needed for tc_shblock.sh. No need to
require that for other test.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agomlxsw: spectrum: Implement chain template hinting
Jiri Pirko [Mon, 23 Jul 2018 07:23:12 +0000 (09:23 +0200)]
mlxsw: spectrum: Implement chain template hinting

Since cld_flower provides information about the filter template for
specific chain, use this information in order to prepare a region.
Use the template to find out what elements are going to be used
and pass that down to mlxsw_sp_acl_tcam_group_add(). Later on, when the
first filter is inserted, the mlxsw_sp_acl_tcam_group_use_patterns()
function would use this element usage information instead of looking
up a pattern.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: sched: cls_flower: propagate chain teplate creation and destruction to drivers
Jiri Pirko [Mon, 23 Jul 2018 07:23:11 +0000 (09:23 +0200)]
net: sched: cls_flower: propagate chain teplate creation and destruction to drivers

Introduce a couple of flower offload commands in order to propagate
template creation/destruction events down to device drivers.
Drivers may use this information to prepare HW in an optimal way
for future filter insertions.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: sched: cls_flower: implement chain templates
Jiri Pirko [Mon, 23 Jul 2018 07:23:10 +0000 (09:23 +0200)]
net: sched: cls_flower: implement chain templates

Use the previously introduced template extension and implement
callback to create, destroy and dump chain template. The existing
parsing and dumping functions are re-used. Also, check if newly added
filters fit the template if it is set.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: sched: cls_flower: change fl_init_dissector to accept mask and dissector
Jiri Pirko [Mon, 23 Jul 2018 07:23:09 +0000 (09:23 +0200)]
net: sched: cls_flower: change fl_init_dissector to accept mask and dissector

This function is going to be used for templates as well, so we need to
pass the pointer separately.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: sched: cls_flower: move key/mask dumping into a separate function
Jiri Pirko [Mon, 23 Jul 2018 07:23:08 +0000 (09:23 +0200)]
net: sched: cls_flower: move key/mask dumping into a separate function

Push key/mask dumping from fl_dump() into a separate function
fl_dump_key(), that will be reused for template dumping.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: sched: introduce chain templates
Jiri Pirko [Mon, 23 Jul 2018 07:23:07 +0000 (09:23 +0200)]
net: sched: introduce chain templates

Allow user to set a template for newly created chains. Template lock
down the chain for particular classifier type/options combinations.
The classifier needs to support templates, otherwise kernel would
reply with error.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: sched: introduce chain object to uapi
Jiri Pirko [Mon, 23 Jul 2018 07:23:06 +0000 (09:23 +0200)]
net: sched: introduce chain object to uapi

Allow user to create, destroy, get and dump chain objects. Do that by
extending rtnl commands by the chain-specific ones. User will now be
able to explicitly create or destroy chains (so far this was done only
automatically according the filter/act needs and refcounting). Also, the
user will receive notification about any chain creation or destuction.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: sched: Avoid implicit chain 0 creation
Jiri Pirko [Mon, 23 Jul 2018 07:23:05 +0000 (09:23 +0200)]
net: sched: Avoid implicit chain 0 creation

Currently, chain 0 is implicitly created during block creation. However
that does not align with chain object exposure, creation and destruction
api introduced later on. So make the chain 0 behave the same way as any
other chain and only create it when it is needed. Since chain 0 is
somehow special as the qdiscs need to hold pointer to the first chain
tp, this requires to move the chain head change callback infra to the
block structure.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: sched: push ops lookup bits into tcf_proto_lookup_ops()
Jiri Pirko [Mon, 23 Jul 2018 07:23:04 +0000 (09:23 +0200)]
net: sched: push ops lookup bits into tcf_proto_lookup_ops()

Push all bits that take care of ops lookup, including module loading
outside tcf_proto_create() function, into tcf_proto_lookup_ops()

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'cpsw-add-MQPRIO-and-CBS-Qdisc-offload'
David S. Miller [Tue, 24 Jul 2018 03:34:36 +0000 (20:34 -0700)]
Merge branch 'cpsw-add-MQPRIO-and-CBS-Qdisc-offload'

Ivan Khoronzhuk says:

====================
net: ethernet: ti: cpsw: add MQPRIO and CBS Qdisc offload

This series adds MQPRIO and CBS Qdisc offload for TI cpsw driver.
It potentially can be used in audio video bridging (AVB) and time
sensitive networking (TSN).

Patchset was tested on AM572x EVM and BBB boards. Last patch from this
series adds detailed description of configuration with examples. For
consistency reasons, in role of talker and listener, tools from
patchset "TSN: Add qdisc based config interface for CBS" were used and
can be seen here: https://www.spinics.net/lists/netdev/msg460869.html

Based on net-next/master

v5..v4:
- corrected typo of "am57xx" board name, no functional changes

v4..v3:
 - nothing, just rebase

v3..v2:
 - corrected typo of "shaper" word, no functional changes

v2..v1:
 - changed name cpsw.txt on ti-cpsw.txt
 - changed name cpsw_set_tc() on cpsw_set_mqprio()
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoDocumentation: networking: cpsw: add MQPRIO & CBS offload examples
Ivan Khoronzhuk [Mon, 23 Jul 2018 21:26:34 +0000 (00:26 +0300)]
Documentation: networking: cpsw: add MQPRIO & CBS offload examples

This document describes MQPRIO and CBS Qdisc offload configuration
for cpsw driver based on examples. It potentially can be used in
audio video bridging (AVB) and time sensitive networking (TSN).

Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: ethernet: ti: cpsw: restore shaper configuration while down/up
Ivan Khoronzhuk [Mon, 23 Jul 2018 21:26:33 +0000 (00:26 +0300)]
net: ethernet: ti: cpsw: restore shaper configuration while down/up

Need to restore shapers configuration after interface was down/up.
This is needed as appropriate configuration is still replicated in
kernel settings. This only shapers context restore, so vlan
configuration should be restored by user if needed, especially for
devices with one port where vlan frames are sent via ALE.

Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: ethernet: ti: cpsw: add CBS Qdisc offload
Ivan Khoronzhuk [Mon, 23 Jul 2018 21:26:32 +0000 (00:26 +0300)]
net: ethernet: ti: cpsw: add CBS Qdisc offload

The cpsw has up to 4 FIFOs per port and upper 3 FIFOs can feed rate
limited queue with shaping. In order to set and enable shaping for
those 3 FIFOs queues the network device with CBS qdisc attached is
needed. The CBS configuration is added for dual-emac/single port mode
only, but potentially can be used in switch mode also, based on
switchdev for instance.

Despite the FIFO shapers can work w/o cpdma level shapers the base
usage must be in combine with cpdma level shapers as described in TRM,
that are set as maximum rates for interface queues with sysfs.

One of the possible configuration with txq shapers and CBS shapers:

                      Configured with echo RATE >
                  /sys/class/net/eth0/queues/tx-0/tx_maxrate
             /---------------------------------------------------
            /
           /            cpdma level shapers
        +----+ +----+ +----+ +----+ +----+ +----+ +----+ +----+
        | c7 | | c6 | | c5 | | c4 | | c3 | | c2 | | c1 | | c0 |
        \    / \    / \    / \    / \    / \    / \    / \    /
         \  /   \  /   \  /   \  /   \  /   \  /   \  /   \  /
          \/     \/     \/     \/     \/     \/     \/     \/
+---------|------|------|------|-------------------------------------+
|    +----+      |      |  +---+                                     |
|    |      +----+      |  |                                         |
|    v      v           v  v                                         |
| +----+ +----+ +----+ +----+ p        p+----+ +----+ +----+ +----+  |
| |    | |    | |    | |    | o        o|    | |    | |    | |    |  |
| | f3 | | f2 | | f1 | | f0 | r  CPSW  r| f3 | | f2 | | f1 | | f0 |  |
| |    | |    | |    | |    | t        t|    | |    | |    | |    |  |
| \    / \    / \    / \    / 0        1\    / \    / \    / \    /  |
|  \  X   \  /   \  /   \  /             \  /   \  /   \  /   \  /   |
|   \/ \   \/     \/     \/               \/     \/     \/     \/    |
+-------\------------------------------------------------------------+
         \
          \ FIFO shaper, set with CBS offload added in this patch,
           \ FIFO0 cannot be rate limited
            ------------------------------------------------------

CBS shaper configuration is supposed to be used with root MQPRIO Qdisc
offload allowing to add sk_prio->tc->txq maps that direct traffic to
appropriate tx queue and maps L2 priority to FIFO shaper.

The CBS shaper is intended to be used for AVB where L2 priority
(pcp field) is used to differentiate class of traffic. So additionally
vlan needs to be created with appropriate egress sk_prio->l2 prio map.

If CBS has several tx queues assigned to it, the sum of their
bandwidth has not overlap bandwidth set for CBS. It's recomended the
CBS bandwidth to be a little bit more.

The CBS shaper is configured with CBS qdisc offload interface using tc
tool from iproute2 packet.

For instance:

$ tc qdisc replace dev eth0 handle 100: parent root mqprio num_tc 3 \
map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@0 1@1 2@2 hw 1

$ tc -g class show dev eth0
+---(100:ffe2) mqprio
|    +---(100:3) mqprio
|    +---(100:4) mqprio
|    
+---(100:ffe1) mqprio
|    +---(100:2) mqprio
|    
+---(100:ffe0) mqprio
     +---(100:1) mqprio

$ tc qdisc add dev eth0 parent 100:1 cbs locredit -1440 \
hicredit 60 sendslope -960000 idleslope 40000 offload 1

$ tc qdisc add dev eth0 parent 100:2 cbs locredit -1470 \
hicredit 62 sendslope -980000 idleslope 20000 offload 1

The above code set CBS shapers for tc0 and tc1, for that txq0 and
txq1 is used. Pay attention, the real set bandwidth can differ a bit
due to discreteness of configuration parameters.

Here parameters like locredit, hicredit and sendslope are ignored
internally and are supposed to be set with assumption that maximum
frame size for frame - 1500.

It's supposed that interface speed is not changed while reconnection,
not always is true, so inform user in case speed of interface was
changed, as it can impact on dependent shapers configuration.

For more examples see Documentation.

Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: ethernet: ti: cpsw: add MQPRIO Qdisc offload
Ivan Khoronzhuk [Mon, 23 Jul 2018 21:26:31 +0000 (00:26 +0300)]
net: ethernet: ti: cpsw: add MQPRIO Qdisc offload

That's possible to offload vlan to tc priority mapping with
assumption sk_prio == L2 prio.

Example:
$ ethtool -L eth0 rx 1 tx 4

$ qdisc replace dev eth0 handle 100: parent root mqprio num_tc 3 \
map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@0 1@1 2@2 hw 1

$ tc -g class show dev eth0
+---(100:ffe2) mqprio
|    +---(100:3) mqprio
|    +---(100:4) mqprio
|    
+---(100:ffe1) mqprio
|    +---(100:2) mqprio
|    
+---(100:ffe0) mqprio
     +---(100:1) mqprio

Here, 100:1 is txq0, 100:2 is txq1, 100:3 is txq2, 100:4 is txq3
txq0 belongs to tc0, txq1 to tc1, txq2 and txq3 to tc2
The offload part only maps L2 prio to classes of traffic, but not
to transmit queues, so to direct traffic to traffic class vlan has
to be created with appropriate egress map.

Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: ethernet: ti: cpdma: fit rated channels in backward order
Ivan Khoronzhuk [Mon, 23 Jul 2018 21:26:30 +0000 (00:26 +0300)]
net: ethernet: ti: cpdma: fit rated channels in backward order

According to TRM tx rated channels should be in 7..0 order,
so correct it.

Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: ethernet: ti: cpsw: use cpdma channels in backward order for txq
Ivan Khoronzhuk [Mon, 23 Jul 2018 21:26:29 +0000 (00:26 +0300)]
net: ethernet: ti: cpsw: use cpdma channels in backward order for txq

The cpdma channel highest priority is from hi to lo number.
The driver has limited number of descriptors that are shared between
number of cpdma channels. Number of queues can be tuned with ethtool,
that allows to not spend descriptors on not needed cpdma channels.
In AVB usually only 2 tx queues can be enough with rate limitation.
The rate limitation can be used only for hi priority queues. Thus, to
use only 2 queues the 8 has to be created. It's wasteful.

So, in order to allow using only needed number of rate limited
tx queues, save resources, and be able to set rate limitation for
them, let assign tx cpdma channels in backward order to queues.

Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge tag 'mlx5e-updates-2018-07-18-v2' of git://git.kernel.org/pub/scm/linux/kernel...
David S. Miller [Tue, 24 Jul 2018 03:22:33 +0000 (20:22 -0700)]
Merge tag 'mlx5e-updates-2018-07-18-v2' of git://git./linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5e-updates-2018-07-18

This series includes update for mlx5e net device driver.

1) From Feras Daoud, Added the support for firmware log tracing,
first by introducing the firmware API needed for the task and then
For each PF do the following:
    1- Allocate memory for the tracer strings database and read it from the FW to the SW.
    2- Allocate and dma map tracer buffers.

    Traces that will be written into the buffer will be parsed as a group
    of one or more traces, referred to as trace message. The trace message
    represents a C-like printf string.
Once a new trace is available  FW will generate an event indicates new trace/s are
available and the driver will parse them and dump them using tracepoints
event tracing

Enable mlx5 fw tracing by:
echo 1 > /sys/kernel/debug/tracing/events/mlx5/mlx5_fw/enable

Read traces by:
cat /sys/kernel/debug/tracing/trace

2) From Roi Dayan, Remove redundant WARN when we cannot find neigh entry

3) From Jianbo Liu, TC double vlan support
- Support offloading tc double vlan headers match
- Support offloading double vlan push/pop tc actions

4) From Boris, re-visit UDP GSO, remove the splitting of UDP_GSO_L4 packets
in the driver, and exposes UDP_GSO_L4 as a PARTIAL_GSO feature.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet/mlx5e: Use PARTIAL_GSO for UDP segmentation
Boris Pismenny [Sat, 30 Jun 2018 19:14:27 +0000 (22:14 +0300)]
net/mlx5e: Use PARTIAL_GSO for UDP segmentation

This patch removes the splitting of UDP_GSO_L4 packets in the driver,
and exposes UDP_GSO_L4 as a PARTIAL_GSO feature. Thus, the network stack
is not responsible for splitting the packet into two.

Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5 years agonet/mlx5e: Support offloading double vlan push/pop tc actions
Jianbo Liu [Wed, 25 Apr 2018 09:57:26 +0000 (09:57 +0000)]
net/mlx5e: Support offloading double vlan push/pop tc actions

As we can configure two push/pop actions in one flow table entry,
add support to offload those double vlan actions in a rule to HW.

Signed-off-by: Jianbo Liu <jianbol@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5 years agonet/mlx5e: Refactor tc vlan push/pop actions offloading
Jianbo Liu [Tue, 3 Jul 2018 05:46:13 +0000 (05:46 +0000)]
net/mlx5e: Refactor tc vlan push/pop actions offloading

Extract actions offloading code to a new function, and also extend data
structures for double vlan actions.

Signed-off-by: Jianbo Liu <jianbol@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5 years agonet/mlx5e: Support offloading tc double vlan headers match
Jianbo Liu [Tue, 1 May 2018 08:48:03 +0000 (08:48 +0000)]
net/mlx5e: Support offloading tc double vlan headers match

We can match on both outer and inner vlan tags, add support for
offloading that.

Signed-off-by: Jianbo Liu <jianbol@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5 years agonet/mlx5e: Remove redundant WARN when we cannot find neigh entry
Roi Dayan [Mon, 4 Dec 2017 14:46:30 +0000 (16:46 +0200)]
net/mlx5e: Remove redundant WARN when we cannot find neigh entry

It is possible for neigh entry not to exist if it was cleaned already.
When we bring down an interface the neigh gets deleted but it could be
that our listener for neigh event to clear the encap valid bit didn't
start yet and the neigh update last used work is started first.
In this scenario the encap entry has valid bit set but the neigh entry
doesn't exist.

Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5 years agonet/mlx5: FW tracer, Add debug prints
Saeed Mahameed [Thu, 3 May 2018 23:44:46 +0000 (16:44 -0700)]
net/mlx5: FW tracer, Add debug prints

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5 years agonet/mlx5: FW tracer, Enable tracing
Feras Daoud [Thu, 22 Feb 2018 08:01:35 +0000 (10:01 +0200)]
net/mlx5: FW tracer, Enable tracing

Add the tracer file to the makefile and add the init
function to the load one flow.

Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5 years agonet/mlx5: FW tracer, parse traces and kernel tracing support
Feras Daoud [Sun, 18 Feb 2018 08:06:35 +0000 (10:06 +0200)]
net/mlx5: FW tracer, parse traces and kernel tracing support

For each message the driver should do the following:
1- Find the message string in the strings database
2- Count the param number of each message
3- Wait for the param events and accumulate them
4- Calculate the event timestamp using the local event timestamp
and the first timestamp event following it.
5- Print message to trace log

Enable the tracing by:
echo 1 > /sys/kernel/debug/tracing/events/mlx5/mlx5_fw/enable

Read traces by:
cat /sys/kernel/debug/tracing/trace

Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5 years agonet/mlx5: FW tracer, events handling
Feras Daoud [Wed, 7 Feb 2018 09:08:56 +0000 (11:08 +0200)]
net/mlx5: FW tracer, events handling

The tracer has one event, event 0x26, with two subtypes:
- Subtype 0: Ownership change
- Subtype 1: Traces available

An ownership change occurs in the following cases:
1- Owner releases his ownership, in this case, an event will be
sent to inform others to reattempt acquire ownership.
2- Ownership was taken by a higher priority tool, in this case
the owner should understand that it lost ownership, and go through
tear down flow.

The second subtype indicates that there are traces in the trace buffer,
in this case, the driver polls the tracer buffer for new traces, parse
them and prepares the messages for printing.

The HW starts tracing from the first address in the tracer buffer.
Driver receives an event notifying that new trace block exists.
HW posts a timestamp event at the last 8B of every 256B block.
Comparing the timestamp to the last handled timestamp would indicate
that this is a new trace block. Once the new timestamp is detected,
the entire block is considered valid.

Block validation and parsing, should be done after copying the current
block to a different location, in order to avoid block overwritten
during processing.

Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5 years agonet/mlx5: FW tracer, register log buffer memory key
Saeed Mahameed [Tue, 1 May 2018 23:04:45 +0000 (16:04 -0700)]
net/mlx5: FW tracer, register log buffer memory key

Create a memory key and protection domain for the tracer log buffer.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5 years agonet/mlx5: FW tracer, create trace buffer and copy strings database
Feras Daoud [Tue, 6 Feb 2018 15:45:57 +0000 (17:45 +0200)]
net/mlx5: FW tracer, create trace buffer and copy strings database

For each PF do the following:
1- Allocate memory for the tracer strings database and read the
strings from the FW to the SW. These strings will be used later for
parsing traces.
2- Allocate and dma map tracer buffers.

Traces that will be written into the buffer will be parsed as a group
of one or more traces, referred to as trace message. The trace message
represents a C-like printf string.
First trace of a message holds the pointer to the correct string in
strings database. The following traces holds the variables of the
message.

Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5 years agonet/mlx5: FW tracer, implement tracer logic
Feras Daoud [Mon, 16 Jul 2018 22:22:01 +0000 (15:22 -0700)]
net/mlx5: FW tracer, implement tracer logic

Implement FW tracer logic and registers access, initialization and
cleanup flows.

Initializing the tracer will be part of load one flow, as multiple
PFs will try to acquire ownership but only one will succeed and will
be the tracer owner.

Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5 years agoMerge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox...
Saeed Mahameed [Mon, 23 Jul 2018 21:58:46 +0000 (14:58 -0700)]
Merge branch 'mlx5-next' of git://git./linux/kernel/git/mellanox/linux

mlx5 core infrastructure updates and fixes.

From Eran:
 - Add MPEGC (Management PCIe General Configuration) registers and btis
 - Fix tristate and description for MLX5 module

rom Feras:
 - Add hardware structures for the firmware tracer

From Jainbo:
 - Core support for double vlan push/pop steering action

From Max:
 - Add XRQ commands definitions

From Noa:
 - Add missing SET_DRIVER_VERSION command translation

From Roi:
 - Use ERR_CAST() instead of coding it

From Tariq:
 - Better return types for CQE API

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
5 years agoMerge branch 'lan743x-Add-features-to-lan743x-driver'
David S. Miller [Mon, 23 Jul 2018 21:09:19 +0000 (14:09 -0700)]
Merge branch 'lan743x-Add-features-to-lan743x-driver'

Bryan Whitehead says:

====================
lan743x: Add features to lan743x driver

This patch series adds extra features to the lan743x driver.

Updates for v4:
Patch 6/8 - Modified get/set_wol to use super set of
    MAC and PHY driver support.
Patch 7/9 - In set_eee, return the return value from phy_ethtool_set_eee.

Updates for v3:
Removed patch 9 from this series, regarding PTP support
Patch 6/8 - Add call to phy_ethtool_get_wol to lan743x_ethtool_get_wol
Patch 7/8 - Add call to phy_ethtool_set_eee on (!eee->eee_enabled)

Updates for v2:
Patch 3/9 - Used ARRAY_SIZE macro in lan743x_ethtool_get_ethtool_stats.
Patch 5/9 - Used MAX_EEPROM_SIZE in lan743x_ethtool_set_eeprom.
Patch 6/9 - Removed unnecessary read of PMT_CTL.
    Used CRC algorithm from lib.
    Removed PHY interrupt settings from lan743x_pm_suspend
    Change "#if CONFIG_PM" to "#ifdef CONFIG_PM"
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agolan743x: Add RSS support
Bryan Whitehead [Mon, 23 Jul 2018 20:16:33 +0000 (16:16 -0400)]
lan743x: Add RSS support

Implement RSS support

Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agolan743x: Add EEE support
Bryan Whitehead [Mon, 23 Jul 2018 20:16:32 +0000 (16:16 -0400)]
lan743x: Add EEE support

Implement EEE support

Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agolan743x: Add power management support
Bryan Whitehead [Mon, 23 Jul 2018 20:16:31 +0000 (16:16 -0400)]
lan743x: Add power management support

Implement power management
Supports suspend, resume, and Wake on LAN

Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agolan743x: Add support for ethtool eeprom access
Bryan Whitehead [Mon, 23 Jul 2018 20:16:30 +0000 (16:16 -0400)]
lan743x: Add support for ethtool eeprom access

Implement ethtool eeprom access
Also provides access to OTP (One Time Programming)

Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agolan743x: Add support for ethtool message level
Bryan Whitehead [Mon, 23 Jul 2018 20:16:29 +0000 (16:16 -0400)]
lan743x: Add support for ethtool message level

Implement ethtool message level

Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agolan743x: Add support for ethtool statistics
Bryan Whitehead [Mon, 23 Jul 2018 20:16:28 +0000 (16:16 -0400)]
lan743x: Add support for ethtool statistics

Implement ethtool statistics

Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agolan743x: Add support for ethtool link settings
Bryan Whitehead [Mon, 23 Jul 2018 20:16:27 +0000 (16:16 -0400)]
lan743x: Add support for ethtool link settings

Use default link setting functions

Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agolan743x: Add support for ethtool get_drvinfo
Bryan Whitehead [Mon, 23 Jul 2018 20:16:26 +0000 (16:16 -0400)]
lan743x: Add support for ethtool get_drvinfo

Implement ethtool get_drvinfo

Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'sh_eth-clean-up-the-TSU-register-accessors'
David S. Miller [Mon, 23 Jul 2018 19:34:51 +0000 (12:34 -0700)]
Merge branch 'sh_eth-clean-up-the-TSU-register-accessors'

Sergei Shtylyov says:

====================
sh_eth: clean up the TSU register accessors

Here's a set of 5 patches against DaveM's 'net-next.git' repo. They do
a final clean up of the TSU register accessors...
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agosh_eth: make sh_eth_tsu_{read|write}_entry() prototypes symmetric
Sergei Shtylyov [Mon, 23 Jul 2018 18:15:47 +0000 (21:15 +0300)]
sh_eth: make sh_eth_tsu_{read|write}_entry() prototypes symmetric

sh_eth_tsu_read_entry() is still asymmetric with sh_eth_tsu_write_entry()
WRT their prototypes -- make them symmetric by passing to the former a TSU
register offset instead of its address and also adding the (now necessary)
'ndev' parameter...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agosh_eth: make sh_eth_tsu_write_entry() take 'offset' parameter
Sergei Shtylyov [Mon, 23 Jul 2018 18:14:38 +0000 (21:14 +0300)]
sh_eth: make sh_eth_tsu_write_entry() take 'offset' parameter

We can add the TSU register base address to a TSU register offset right
in sh_eth_tsu_write_entry(),  no need to do it in its callers...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>