Commit Graph

579 Commits

Author SHA1 Message Date
Simon Horman 73c4d1b307 net: lan743x: select FIXED_PHY
The blamed commit introduces usage of fixed_phy_register() but
not a corresponding dependency on FIXED_PHY.

This can result in a build failure.

 s390-linux-ld: drivers/net/ethernet/microchip/lan743x_main.o: in function `lan743x_phy_open':
 drivers/net/ethernet/microchip/lan743x_main.c:1514: undefined reference to `fixed_phy_register'

Fixes: 624864fbff ("net: lan743x: add fixed phy support for LAN7431 device")
Cc: stable@vger.kernel.org
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Closes: https://lore.kernel.org/netdev/725bf1c5-b252-7d19-7582-a6809716c7d6@infradead.org/
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-09 11:23:47 +01:00
Moritz Fischer 7a8227b2e7 net: lan743x: Don't sleep in atomic context
dev_set_rx_mode() grabs a spin_lock, and the lan743x implementation
proceeds subsequently to go to sleep using readx_poll_timeout().

Introduce a helper wrapping the readx_poll_timeout_atomic() function
and use it to replace the calls to readx_polL_timeout().

Fixes: 23f0703c12 ("lan743x: Add main source files for new lan743x driver")
Cc: stable@vger.kernel.org
Cc: Bryan Whitehead <bryan.whitehead@microchip.com>
Cc: UNGLinuxDriver@microchip.com
Signed-off-by: Moritz Fischer <moritzf@google.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20230627035000.1295254-1-moritzf@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-06-29 10:59:43 +02:00
Moritz Fischer 30ac666a2f net: lan743x: Simplify comparison
Simplify comparison, no functional changes.

Cc: Bryan Whitehead <bryan.whitehead@microchip.com>
Cc: UNGLinuxDriver@microchip.com
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Moritz Fischer <moritzf@google.com>
Link: https://lore.kernel.org/r/20230627035432.1296760-1-moritzf@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-27 09:53:00 -07:00
Russell King (Oracle) 6e5bb3da98 net: sparx5: update PCS driver to use neg_mode
Update Sparx5's embedded PCS driver to use neg_mode rather than the
mode argument. As there is no pcs_link_up() method, this only affects
the pcs_config() method.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/E1qA8EZ-00EaGF-6F@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-22 19:41:02 -07:00
Russell King (Oracle) a0e93cfdac net: lan966x: update PCS driver to use neg_mode
Update lan966x's embedded PCS driver to use neg_mode rather than the
mode argument. As there is no pcs_link_up() method, this only affects
the pcs_config() method.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/E1qA8E9-00EaFl-GN@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-22 19:41:01 -07:00
Moritz Fischer 0f0f586868 net: lan743x: Remove extranous gotos
The gotos for cleanup aren't required, the function
might as well just return the actual error code.

Signed-off-by: Moritz Fischer <moritzf@google.com>
Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-02 10:48:48 +01:00
Vladimir Oltean 2d800bc500 net/sched: taprio: replace tc_taprio_qopt_offload :: enable with a "cmd" enum
Inspired from struct flow_cls_offload :: cmd, in order for taprio to be
able to report statistics (which is future work), it seems that we need
to drill one step further with the ndo_setup_tc(TC_SETUP_QDISC_TAPRIO)
multiplexing, and pass the command as part of the common portion of the
muxed structure.

Since we already have an "enable" variable in tc_taprio_qopt_offload,
refactor all drivers to check for "cmd" instead of "enable", and reject
every other command except "replace" and "destroy" - to be future proof.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> # for lan966x
Acked-by: Kurt Kanzenbach <kurt@linutronix.de> # hellcreek
Reviewed-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
Reviewed-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-05-31 10:00:30 +01:00
Jakub Kicinski d4031ec844 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

Conflicts:

net/ipv4/raw.c
  3632679d9e ("ipv{4,6}/raw: fix output xfrm lookup wrt protocol")
  c85be08fc4 ("raw: Stop using RTO_ONLINK.")
https://lore.kernel.org/all/20230525110037.2b532b83@canb.auug.org.au/

Adjacent changes:

drivers/net/ethernet/freescale/fec_main.c
  9025944fdd ("net: fec: add dma_wmb to ensure correct descriptor values")
  144470c88c ("net: fec: using the standard return codes when xdp xmit errors")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-05-25 19:57:39 -07:00
Horatiu Vultur 6007612459 lan966x: Fix unloading/loading of the driver
It was noticing that after a while when unloading/loading the driver and
sending traffic through the switch, it would stop working. It would stop
forwarding any traffic and the only way to get out of this was to do a
power cycle of the board. The root cause seems to be that the switch
core is initialized twice. Apparently initializing twice the switch core
disturbs the pointers in the queue systems in the HW, so after a while
it would stop sending the traffic.
Unfortunetly, it is not possible to use a reset of the switch here,
because the reset line is connected to multiple devices like MDIO,
SGPIO, FAN, etc. So then all the devices will get reseted when the
network driver will be loaded.
So the fix is to check if the core is initialized already and if that is
the case don't initialize it again.

Fixes: db8bcaad53 ("net: lan966x: add the basic lan966x driver")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230522120038.3749026-1-horatiu.vultur@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-05-23 13:01:06 +02:00
Horatiu Vultur d38ddd56d9 net: lan966x: Add support for DSCP rewrite
Add support for DSCP rewrite in lan966x driver. On egress DSCP is
rewritten from either classified DSCP, or frame DSCP. Classified DSCP is
determined by the Analyzer Classifier on ingress, and is mapped from
classified QoS class and DP level. Classification of DSCP is by default
enabled for all ports.

It is required that DSCP is trusted for the egress port *and* rewrite
table is not empty, in order to rewrite DSCP based on classified DSCP,
otherwise DSCP is always rewritten from frame DSCP.

Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-05-18 15:32:10 +02:00
Horatiu Vultur 363f98b96a net: lan966x: Add support for PCP rewrite
Add support for rewrite of PCP and DEI value, based on QoS and DP level.

The DCB rewrite table is queried for mappings between priority and
PCP/DEI. The classified DP level is then encoded in the DEI bit, if a
mapping for DEI exists.

Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-05-18 15:32:10 +02:00
Horatiu Vultur f8ba50ea13 net: lan966x: Add support for offloading default prio
Add support for offloading default prio.

Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Reviewed-by: Piotr Raczynski <piotr.raczynski@intel.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-05-18 15:32:10 +02:00
Horatiu Vultur 0c88d98108 net: lan966x: Add support for offloading dscp table
Add support for offloading dscp app entries. The dscp values are global
for all lan966x ports.

Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-05-18 15:32:10 +02:00
Horatiu Vultur 10c71a97ee net: lan966x: Add support for apptrust
Make use of set/getapptrust() to implement per-selector trust
and trust order.

Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-05-18 15:32:10 +02:00
Horatiu Vultur a83e463036 net: lan966x: Add support for offloading pcp table
Add support for offloading pcp app entries. Lan966x has 8 priority
queues per port and for each priority it also has a drop precedence.

Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Reviewed-by: Piotr Raczynski <piotr.raczynski@intel.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-05-18 15:32:09 +02:00
Horatiu Vultur 1fd2221135 net: lan966x: Add registers to configure PCP, DEI, DSCP
Add the registers that are needed to configure the PCP, DEI and DSCP
of the switch both at ingress and also at egress.

Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Reviewed-by: Piotr Raczynski <piotr.raczynski@intel.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-05-18 15:32:09 +02:00
Anup Sharma c515a4443c net: ethernet: microchip: vcap: Remove extra semicolon
Remove the extra semicolon at end. Issue identified using
semicolon.cocci Coccinelle semantic patch.

drivers/net/ethernet/microchip/vcap/vcap_api.c:1124:3-4: Unneeded semicolon
drivers/net/ethernet/microchip/vcap/vcap_api.c:1165:3-4: Unneeded semicolon
drivers/net/ethernet/microchip/vcap/vcap_api.c:1239:3-4: Unneeded semicolon
drivers/net/ethernet/microchip/vcap/vcap_api.c:1287:3-4: Unneeded semicolon

Signed-off-by: Anup Sharma <anupnewsmail@gmail.com>

Changes:
V1 -> V2: Target tree included in the subject line.

Signed-off-by: David S. Miller <davem@davemloft.net>
2023-05-15 10:16:50 +01:00
Philipp Rosenberger 995585ecdf net: enc28j60: Use threaded interrupt instead of workqueue
The Microchip ENC28J60 SPI Ethernet driver schedules a work item from
the interrupt handler because accesses to the SPI bus may sleep.

On PREEMPT_RT (which forces interrupt handling into threads) this
old-fashioned approach unnecessarily increases latency because an
interrupt results in first waking the interrupt thread, then scheduling
the work item.  So, a double indirection to handle an interrupt.

Avoid by converting the driver to modern threaded interrupt handling.

Signed-off-by: Philipp Rosenberger <p.rosenberger@kunbus.com>
Signed-off-by: Zhi Han <hanzhi09@gmail.com>
[lukas: rewrite commit message, linewrap request_threaded_irq() call]
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Piotr Raczynski <piotr.raczynski@intel.com>
Link: https://lore.kernel.org/r/342380d989ce26bc49f0e5d45fbb0416a5f7809f.1683606193.git.lukas@wunner.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-05-11 18:00:37 -07:00
Horatiu Vultur 85f050002b net: lan966x: Add TC support for ES0 VCAP
Enable the TC command to use the lan966x ES0 VCAP. Currently support
only one action which is vlan pop, other will be added later.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-05-10 09:51:11 +01:00
Horatiu Vultur 96b6c8a662 net: lan966x: Add ES0 VCAP keyset configuration for lan966x
Add ES0 VCAP port keyset configuration for lan966x and also update
debugfs to show the keyset configuration.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-05-10 09:51:11 +01:00
Horatiu Vultur 011be87264 net: lan966x: Add ES0 VCAP model
Provide ES0 (egress stage 0) VCAP model for lan966x.
This provides rewriting functionality in the gress path.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-05-10 09:51:10 +01:00
Horatiu Vultur 700f11eb2c lan966x: Don't use xdp_frame when action is XDP_TX
When the action of an xdp program was XDP_TX, lan966x was creating
a xdp_frame and use this one to send the frame back. But it is also
possible to send back the frame without needing a xdp_frame, because
it is possible to send it back using the page.
And then once the frame is transmitted is possible to use directly
page_pool_recycle_direct as lan966x is using page pools.
This would save some CPU usage on this path, which results in higher
number of transmitted frames. Bellow are the statistics:
Frame size:    Improvement:
64                ~8%
256              ~11%
512               ~8%
1000              ~0%
1500              ~0%

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://lore.kernel.org/r/20230422142344.3630602-1-horatiu.vultur@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-04-24 18:58:04 -07:00
Horatiu Vultur 99676a5766 net: lan966x: Fix lan966x_ifh_get
From time to time, it was observed that the nanosecond part of the
received timestamp, which is extracted from the IFH, it was actually
bigger than 1 second. So then when actually calculating the full
received timestamp, based on the nanosecond part from IFH and the second
part which is read from HW, it was actually wrong.

The issue seems to be inside the function lan966x_ifh_get, which
extracts information from an IFH(which is an byte array) and returns the
value in a u64. When extracting the timestamp value from the IFH, which
starts at bit 192 and have the size of 32 bits, then if the most
significant bit was set in the timestamp, then this bit was extended
then the return value became 0xffffffff... . And the reason of this is
because constants without any postfix are treated as signed longs and
that is the reason why '1 << 31' becomes 0xffffffff80000000.
This is fixed by adding the postfix 'ULL' to 1.

Fixes: fd7627833d ("net: lan966x: Stop using packing library")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-04-17 09:56:49 +01:00
Wolfram Sang 22f5c23414 ethernet: remove superfluous clearing of phydev
phy_disconnect() calls phy_detach() which already clears 'phydev' if it
is attached to a struct net_device.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230321131745.27688-1-wsa+renesas@sang-engineering.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-22 20:47:27 -07:00
Horatiu Vultur fd7627833d net: lan966x: Stop using packing library
When a frame is injected from CPU, it is required to create an IFH(Inter
frame header) which sits in front of the frame that is transmitted.
This IFH, contains different fields like destination port, to bypass the
analyzer, priotity, etc. Lan966x it is using packing library to set and
get the fields of this IFH. But this seems to be an expensive
operations.
If this is changed with a simpler implementation, the RX will be
improved with ~5Mbit while on the TX is a much bigger improvement as it
is required to set more fields. Below are the numbers for TX.

Before:
[  5]   0.00-10.02  sec   439 MBytes   367 Mbits/sec    0 sender

After:
[  5]   0.00-10.00  sec   578 MBytes   485 Mbits/sec    0 sender

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-19 15:21:48 +00:00
Horatiu Vultur ff89ac704e net: lan966x: Don't read RX timestamp if not needed
Whenever a frame was received to the CPU, the HW is timestamping the
frame. In the IFH(Inter Frame Header) it is found the nanosecond part
of the timestamps the SW is required to read from HW the second part.
But reading the second part it seems to be a expensive operations, so
so change this such to read the second part only when rx filter is
enabled.
Doing this change gives the RX a performance boost of ~70mbit.

before:
[  5]   0.00-10.01  sec   546 MBytes   457 Mbits/sec    0 sender

now:
[  5]   0.00-10.01  sec   652 MBytes   530 Mbits/sec    0 sender

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-19 15:21:48 +00:00
Horatiu Vultur 68a84a127b net: lan966x: Change lan966x_police_del return type
As the function always returns 0 change the return type to be
void instead of int. In this way also remove a wrong message
in case of error which would never happen.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230312195155.1492881-1-horatiu.vultur@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-15 00:28:56 -07:00
Horatiu Vultur 44d706fde7 net: lan966x: Add support for IS1 VCAP ethernet protocol types
IS1 VCAP has it's own list of supported ethernet protocol types which is
different than the IS2 VCAP. Therefore separate the list of known
protocol types based on the VCAP type.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-10 16:44:25 -08:00
Horatiu Vultur b3762a9db3 net: lan966x: Add TC filter chaining support for IS1 and IS2 VCAPs
Allow rules to be chained between IS1 VCAP and IS2 VCAP. Chaining
between IS1 lookups or between IS2 lookups are not supported by the
hardware.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-10 16:44:25 -08:00
Horatiu Vultur 135c2116fd net: lan966x: Add TC support for IS1 VCAP
Enable TC command to use IS1 VCAP

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-10 16:44:24 -08:00
Horatiu Vultur a4d9b3ec63 net: lan966x: Add IS1 VCAP keyset configuration for lan966x
Add IS1 VCAP port keyset configuration for lan966x and also update debug
fs support to show the keyset configuration.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-10 16:44:24 -08:00
Horatiu Vultur 99ce286d2d net: lan966x: Add IS1 VCAP model
Provide IS1 (ingress stage 1) VCAP model for lan966x.
This provides classification actions for lan966x.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-10 16:44:24 -08:00
Jakub Kicinski d0ddf5065f Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Documentation/bpf/bpf_devel_QA.rst
  b7abcd9c65 ("bpf, doc: Link to submitting-patches.rst for general patch submission info")
  d56b0c461d ("bpf, docs: Fix link to netdev-FAQ target")
https://lore.kernel.org/all/20230307095812.236eb1be@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-09 22:22:11 -08:00
Steen Hegelund e1d597ecbe net: microchip: sparx5: Add TC template support
This adds support for using the "template add" and "template destroy"
functionality to change the port keyset configuration.

If the VCAP lookup already contains rules, the port keyset is left
unchanged, as a change would make these rules unusable.

When the template is destroyed the port keyset configuration is restored.
The filters using the template chain will automatically be deleted by the
TC framework.

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-08 13:19:43 +00:00
Steen Hegelund d9f175b0df net: microchip: sparx5: Add port keyset changing functionality
With this its is now possible for clients (like TC) to change the port
keyset configuration in the Sparx5 VCAPs.

This is typically done per traffic class which is guided with the L3
protocol information.
Before the change the current keyset configuration is collected in a list
that is handed back to the client.

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-08 13:19:43 +00:00
Steen Hegelund 1c14432dce net: microchip: sparx5: Add TC template list to a port
This adds a list that is used to collect the templates that are active on a
port.

This allows the template creation to change the port configuration
and the template destruction to change it back.

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-08 13:19:43 +00:00
Steen Hegelund bfcb94aacc net: microchip: sparx5: Provide rule count, key removal and keyset select
This provides these 3 functions in the VCAP API:

- Count the number of rules in a VCAP lookup (chain)
- Remove a key from a VCAP rule
- Find the keyset that gives the smallest rule list from a list of keysets

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-08 13:19:43 +00:00
Steen Hegelund fbd3dce958 net: microchip: sparx5: Correct the spelling of the keysets in debugfs
Correct the name used in the debugfs output.

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-08 13:19:43 +00:00
Daniel Machon cdd2883310 net: microchip: sparx5: fix deletion of existing DSCP mappings
Fix deletion of existing DSCP mappings in the APP table.

Adding and deleting DSCP entries are replicated per-port, since the
mapping table is global for all ports in the chip. Whenever a mapping
for a DSCP value already exists, the old mapping is deleted first.
However, it is only deleted for the specified port. Fix this by calling
sparx5_dcb_ieee_delapp() instead of dcb_ieee_delapp() as it ought to be.

Reproduce:

// Map and remap DSCP value 63
$ dcb app add dev eth0 dscp-prio 63:1
$ dcb app add dev eth0 dscp-prio 63:2

$ dcb app show dev eth0 dscp-prio
dscp-prio 63:2

$ dcb app show dev eth1 dscp-prio
dscp-prio 63:1 63:2 <-- 63:1 should not be there

Fixes: 8dcf69a641 ("net: microchip: sparx5: add support for offloading dscp table")
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-08 13:07:59 +00:00
Horatiu Vultur 81563d8548 net: lan966x: Fix port police support using tc-matchall
When the police was removed from the port, then it was trying to
remove the police from the police id and not from the actual
police index.
The police id represents the id of the police and police index
represents the position in HW where the police is situated.
The port police id can be any number while the port police index
is a number based on the port chip port.
Fix this by deleting the police from HW that is situated at the
police index and not police id.

Fixes: 5390334b59 ("net: lan966x: Add port police support using tc-matchall")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-01 12:44:17 +00:00
Linus Torvalds 8ff99ad04c phy-for-6.3
- Core support
 	- New devm_of_phy_optional_get() API with users and conversion
 
   - New support:
 	- Mediatek MT7986 tphy support
         - Qualcomm SM8550 UFS, PCIe, combo phy support, SM6115 / SM4250
           USB3 phy support, SM6350 combo phy support, SM6125 UFS PHY
 	  support amd SM8350 & SM8450 combo phy support
         - Qualcomm SNPS eUSB2 eUSB2 repeater drivers
 	- Allwinner F1C100s USB PHY support
 	- Tegra xusb support for Tegra234
 
   - Updates:
         - Yaml conversion for Qualcomm pcie2 phy and usb-hsic-phy
 	- G4 mode support in Qualcomm UFS phy and support for various SoCs
 	- Yaml conversion for Meson usb2 phy
 	- TI Type C support for usb phy for j721
 	- Yaml conversion for Tegra xusb binding
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Merge tag 'phy-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy

Pull phy updates from Vinod Koul:
 "This features a bunch of new device support, a couple of new drivers,
  yaml conversion and updates of a few drivers.

  Core support:

   - New devm_of_phy_optional_get() API with users and conversion

  New hardware support:

   - Mediatek MT7986 phy support

   - Qualcomm SM8550 UFS, PCIe, combo phy support, SM6115 / SM4250 USB3
     phy support, SM6350 combo phy support, SM6125 UFS PHY support amd
     SM8350 & SM8450 combo phy support

   - Qualcomm SNPS eUSB2 eUSB2 repeater drivers

   - Allwinner F1C100s USB PHY support

   - Tegra xusb support for Tegra234

  Updates:

   - Yaml conversion for Qualcomm pcie2 phy and usb-hsic-phy

   - G4 mode support in Qualcomm UFS phy and support for various SoCs

   - Yaml conversion for Meson usb2 phy

   - TI Type C support for usb phy for j721

   - Yaml conversion for Tegra xusb binding"

* tag 'phy-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (106 commits)
  phy: qcom: phy-qcom-snps-eusb2: Add support for eUSB2 repeater
  phy: qcom: Add QCOM SNPS eUSB2 repeater driver
  dt-bindings: phy: qcom,snps-eusb2-phy: Add phys property for the repeater
  dt-bindings: phy: Add qcom,snps-eusb2-repeater schema file
  dt-bindings: phy: amlogic,g12a-usb3-pcie-phy: add missing optional phy-supply property
  phy: rockchip-typec: Fix unsigned comparison with less than zero
  phy: rockchip-typec: fix tcphy_get_mode error case
  phy: qcom: snps-eusb2: Add missing headers
  phy: qcom-qmp-combo: Add support for SM8550
  phy: qcom-qmp: Add v6 DP register offsets
  phy: qcom-qmp: pcs-usb: Add v6 register offsets
  dt-bindings: phy: qcom,sc8280xp-qmp-usb43dp: Document SM8550 compatible
  phy: qcom: Add QCOM SNPS eUSB2 driver
  dt-bindings: phy: Add qcom,snps-eusb2-phy schema file
  phy: qcom-qmp-pcie: Add support for SM8550 g3x2 and g4x2 PCIEs
  phy: qcom-qmp: qserdes-lane-shared: Add v6 register offsets
  phy: qcom-qmp: qserdes-txrx: Add v6.20 register offsets
  phy: qcom-qmp: pcs-pcie: Add v6.20 register offsets
  phy: qcom-qmp: pcs-pcie: Add v6 register offsets
  phy: qcom-qmp: pcs: Add v6.20 register offsets
  ...
2023-02-24 17:22:11 -08:00
Jakub Kicinski d1fabc68f8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Per-next-PR merge.

net/smc/af_smc.c
  b5dd4d6981 ("net/smc: llc_conf_mutex refactor, replace it with rw_semaphore")
  e40b801b36 ("net/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()")
https://lore.kernel.org/all/20230221124008.6303c330@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-21 09:29:25 -08:00
Horatiu Vultur 3a70e0d4c9 net: lan966x: Fix possible deadlock inside PTP
When doing timestamping in lan966x and having PROVE_LOCKING
enabled the following warning is shown.

========================================================
WARNING: possible irq lock inversion dependency detected
6.2.0-rc7-01749-gc54e1f7f7e36 #2786 Tainted: G                 N
--------------------------------------------------------
swapper/0/0 just changed the state of lock:
c2609f50 (_xmit_ETHER#2){+.-.}-{2:2}, at: sch_direct_xmit+0x16c/0x2e8
but this lock took another, SOFTIRQ-unsafe lock in the past:
 (&lan966x->ptp_ts_id_lock){+.+.}-{2:2}

and interrupts could create inverse lock ordering between them.

other info that might help us debug this:
 Possible interrupt unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&lan966x->ptp_ts_id_lock);
                               local_irq_disable();
                               lock(_xmit_ETHER#2);
                               lock(&lan966x->ptp_ts_id_lock);
  <Interrupt>
    lock(_xmit_ETHER#2);

 *** DEADLOCK ***

5 locks held by swapper/0/0:
 #0: c1001e18 ((&ndev->rs_timer)){+.-.}-{0:0}, at: call_timer_fn+0x0/0x33c
 #1: c105e7c4 (rcu_read_lock){....}-{1:2}, at: ndisc_send_skb+0x134/0x81c
 #2: c105e7d8 (rcu_read_lock_bh){....}-{1:2}, at: ip6_finish_output2+0x17c/0xc64
 #3: c105e7d8 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x4c/0x1224
 #4: c3056174 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock){+...}-{2:2}, at: __dev_queue_xmit+0x354/0x1224

the shortest dependencies between 2nd lock and 1st lock:
 -> (&lan966x->ptp_ts_id_lock){+.+.}-{2:2} {
    HARDIRQ-ON-W at:
                      lock_acquire.part.0+0xb0/0x248
                      _raw_spin_lock+0x38/0x48
                      lan966x_ptp_irq_handler+0x164/0x2a8
                      irq_thread_fn+0x1c/0x78
                      irq_thread+0x130/0x278
                      kthread+0xec/0x110
                      ret_from_fork+0x14/0x28
    SOFTIRQ-ON-W at:
                      lock_acquire.part.0+0xb0/0x248
                      _raw_spin_lock+0x38/0x48
                      lan966x_ptp_irq_handler+0x164/0x2a8
                      irq_thread_fn+0x1c/0x78
                      irq_thread+0x130/0x278
                      kthread+0xec/0x110
                      ret_from_fork+0x14/0x28
    INITIAL USE at:
                     lock_acquire.part.0+0xb0/0x248
                     _raw_spin_lock_irqsave+0x4c/0x68
                     lan966x_ptp_txtstamp_request+0x128/0x1cc
                     lan966x_port_xmit+0x224/0x43c
                     dev_hard_start_xmit+0xa8/0x2f0
                     sch_direct_xmit+0x108/0x2e8
                     __dev_queue_xmit+0x41c/0x1224
                     packet_sendmsg+0xdb4/0x134c
                     __sys_sendto+0xd0/0x154
                     sys_send+0x18/0x20
                     ret_fast_syscall+0x0/0x1c
  }
  ... key      at: [<c174ba0c>] __key.2+0x0/0x8
  ... acquired at:
   _raw_spin_lock_irqsave+0x4c/0x68
   lan966x_ptp_txtstamp_request+0x128/0x1cc
   lan966x_port_xmit+0x224/0x43c
   dev_hard_start_xmit+0xa8/0x2f0
   sch_direct_xmit+0x108/0x2e8
   __dev_queue_xmit+0x41c/0x1224
   packet_sendmsg+0xdb4/0x134c
   __sys_sendto+0xd0/0x154
   sys_send+0x18/0x20
   ret_fast_syscall+0x0/0x1c

-> (_xmit_ETHER#2){+.-.}-{2:2} {
   HARDIRQ-ON-W at:
                    lock_acquire.part.0+0xb0/0x248
                    _raw_spin_lock+0x38/0x48
                    netif_freeze_queues+0x38/0x68
                    dev_deactivate_many+0xac/0x388
                    dev_deactivate+0x38/0x6c
                    linkwatch_do_dev+0x70/0x8c
                    __linkwatch_run_queue+0xd4/0x1e8
                    linkwatch_event+0x24/0x34
                    process_one_work+0x284/0x744
                    worker_thread+0x28/0x4bc
                    kthread+0xec/0x110
                    ret_from_fork+0x14/0x28
   IN-SOFTIRQ-W at:
                    lock_acquire.part.0+0xb0/0x248
                    _raw_spin_lock+0x38/0x48
                    sch_direct_xmit+0x16c/0x2e8
                    __dev_queue_xmit+0x41c/0x1224
                    ip6_finish_output2+0x5f4/0xc64
                    ndisc_send_skb+0x4cc/0x81c
                    addrconf_rs_timer+0xb0/0x2f8
                    call_timer_fn+0xb4/0x33c
                    expire_timers+0xb4/0x10c
                    run_timer_softirq+0xf8/0x2a8
                    __do_softirq+0xd4/0x5fc
                    __irq_exit_rcu+0x138/0x17c
                    irq_exit+0x8/0x28
                    __irq_svc+0x90/0xbc
                    arch_cpu_idle+0x30/0x3c
                    default_idle_call+0x44/0xac
                    do_idle+0xc8/0x138
                    cpu_startup_entry+0x18/0x1c
                    rest_init+0xcc/0x168
                    arch_post_acpi_subsys_init+0x0/0x8
   INITIAL USE at:
                   lock_acquire.part.0+0xb0/0x248
                   _raw_spin_lock+0x38/0x48
                   netif_freeze_queues+0x38/0x68
                   dev_deactivate_many+0xac/0x388
                   dev_deactivate+0x38/0x6c
                   linkwatch_do_dev+0x70/0x8c
                   __linkwatch_run_queue+0xd4/0x1e8
                   linkwatch_event+0x24/0x34
                   process_one_work+0x284/0x744
                   worker_thread+0x28/0x4bc
                   kthread+0xec/0x110
                   ret_from_fork+0x14/0x28
 }
 ... key      at: [<c175974c>] netdev_xmit_lock_key+0x8/0x1c8
 ... acquired at:
   __lock_acquire+0x978/0x2978
   lock_acquire.part.0+0xb0/0x248
   _raw_spin_lock+0x38/0x48
   sch_direct_xmit+0x16c/0x2e8
   __dev_queue_xmit+0x41c/0x1224
   ip6_finish_output2+0x5f4/0xc64
   ndisc_send_skb+0x4cc/0x81c
   addrconf_rs_timer+0xb0/0x2f8
   call_timer_fn+0xb4/0x33c
   expire_timers+0xb4/0x10c
   run_timer_softirq+0xf8/0x2a8
   __do_softirq+0xd4/0x5fc
   __irq_exit_rcu+0x138/0x17c
   irq_exit+0x8/0x28
   __irq_svc+0x90/0xbc
   arch_cpu_idle+0x30/0x3c
   default_idle_call+0x44/0xac
   do_idle+0xc8/0x138
   cpu_startup_entry+0x18/0x1c
   rest_init+0xcc/0x168
   arch_post_acpi_subsys_init+0x0/0x8

stack backtrace:
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G                 N 6.2.0-rc7-01749-gc54e1f7f7e36 #2786
Hardware name: Generic DT based system
 unwind_backtrace from show_stack+0x10/0x14
 show_stack from dump_stack_lvl+0x58/0x70
 dump_stack_lvl from mark_lock.part.0+0x59c/0x93c
 mark_lock.part.0 from __lock_acquire+0x978/0x2978
 __lock_acquire from lock_acquire.part.0+0xb0/0x248
 lock_acquire.part.0 from _raw_spin_lock+0x38/0x48
 _raw_spin_lock from sch_direct_xmit+0x16c/0x2e8
 sch_direct_xmit from __dev_queue_xmit+0x41c/0x1224
 __dev_queue_xmit from ip6_finish_output2+0x5f4/0xc64
 ip6_finish_output2 from ndisc_send_skb+0x4cc/0x81c
 ndisc_send_skb from addrconf_rs_timer+0xb0/0x2f8
 addrconf_rs_timer from call_timer_fn+0xb4/0x33c
 call_timer_fn from expire_timers+0xb4/0x10c
 expire_timers from run_timer_softirq+0xf8/0x2a8
 run_timer_softirq from __do_softirq+0xd4/0x5fc
 __do_softirq from __irq_exit_rcu+0x138/0x17c
 __irq_exit_rcu from irq_exit+0x8/0x28
 irq_exit from __irq_svc+0x90/0xbc
Exception stack(0xc1001f20 to 0xc1001f68)
1f20: ffffffff ffffffff 00000001 c011f840 c100e000 c100e000 c1009314 c1009370
1f40: c10f0c1a c0d5e564 c0f5da8c 00000000 00000000 c1001f70 c010f0bc c010f0c0
1f60: 600f0013 ffffffff
 __irq_svc from arch_cpu_idle+0x30/0x3c
 arch_cpu_idle from default_idle_call+0x44/0xac
 default_idle_call from do_idle+0xc8/0x138
 do_idle from cpu_startup_entry+0x18/0x1c
 cpu_startup_entry from rest_init+0xcc/0x168
 rest_init from arch_post_acpi_subsys_init+0x0/0x8

Fix this by using spin_lock_irqsave/spin_lock_irqrestore also
inside lan966x_ptp_irq_handler.

Fixes: e85a96e48e ("net: lan966x: Add support for ptp interrupts")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20230217210917.2649365-1-horatiu.vultur@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-20 16:33:03 -08:00
Horatiu Vultur 4d3e050b54 net: lan966x: Use automatic selection of VCAP rule actionset
Since commit 81e164c4ae ("net: microchip: sparx5: Add automatic
selection of VCAP rule actionset") the VCAP API has the capability to
select automatically the actionset based on the actions that are attached
to the rule. So it is not needed anymore to hardcode the actionset in the
driver, therefore it is OK to remove this.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-20 11:30:08 +00:00
Arnd Bergmann 129ff4de58 net: microchip: sparx5: reduce stack usage
The vcap_admin structures in vcap_api_next_lookup_advanced_test()
take several hundred bytes of stack frame, but when CONFIG_KASAN_STACK
is enabled, each one of them also has extra padding before and after
it, which ends up blowing the warning limit:

In file included from drivers/net/ethernet/microchip/vcap/vcap_api.c:3521:
drivers/net/ethernet/microchip/vcap/vcap_api_kunit.c: In function 'vcap_api_next_lookup_advanced_test':
drivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1954:1: error: the frame size of 1448 bytes is larger than 1400 bytes [-Werror=frame-larger-than=]
 1954 | }

Reduce the total stack usage by replacing the five structures with
an array that only needs one pair of padding areas.

Fixes: 1f741f0011 ("net: microchip: sparx5: Add KUNIT tests for enabling/disabling chains")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-20 10:50:47 +00:00
Steen Hegelund ebf44ded76 net: microchip: sparx5: Add TC vlan action support for the ES0 VCAP
This provides these 3 actions for rule in the ES0 VCAP:

- action vlan pop
- action vlan modify id X priority Y
- action vlan push id X priority Y protocol Z

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-16 08:59:49 +01:00
Steen Hegelund 52b28a93c4 net: microchip: sparx5: Add TC support for the ES0 VCAP
This enables the TC command to use the Sparx5 ES0 VCAP, and handling of
rule links between IS0 and ES0.

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-16 08:59:49 +01:00
Steen Hegelund 3cbe7537a7 net: microchip: sparx5: Add ES0 VCAP keyset configuration for Sparx5
This adds the ES0 VCAP port keyset configuration for Sparx5.

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-16 08:59:49 +01:00
Steen Hegelund f2a77dd69f net: microchip: sparx5: Updated register interface with VCAP ES0 access
This provides access to the ES0 VCAP register targets

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-16 08:59:48 +01:00
Steen Hegelund a5cc98adf3 net: microchip: sparx5: Add ES0 VCAP model and updated KUNIT VCAP model
This provides the VCAP model for the Sparx5 ES0 (Egress Stage 0) VCAP.

This VCAP provides rewriting functionality in the egress path.

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-16 08:59:48 +01:00