Merge drm/drm-next into drm-intel-next

Catch up with drm core changes.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge tag 'v5.14-rc4' into media_tree

Linux 5.14-rc4

* tag 'v5.14-rc4': (948 commits)
Linux 5.14-rc4
pipe: make pipe writes always wake up readers
Revert "perf map: Fix dso->nsinfo refcountin

Merge tag 'v5.14-rc4' into media_tree

Linux 5.14-rc4

* tag 'v5.14-rc4': (948 commits)
Linux 5.14-rc4
pipe: make pipe writes always wake up readers
Revert "perf map: Fix dso->nsinfo refcounting"
mm/memcg: fix NULL pointer dereference in memcg_slab_free_hook()
slub: fix unreclaimable slab stat for bulk free
mm/migrate: fix NR_ISOLATED corruption on 64-bit
mm: memcontrol: fix blocking rstat function called from atomic cgroup1 thresholding code
ocfs2: issue zeroout to EOF blocks
ocfs2: fix zero out valid data
lib/test_string.c: move string selftest in the Runtime Testing menu
gve: Update MAINTAINERS list
arch: Kconfig: clean up obsolete use of HAVE_IDE
can: esd_usb2: fix memory leak
can: ems_usb: fix memory leak
can: usb_8dev: fix memory leak
can: mcba_usb_start(): add missing urb->transfer_dma initialization
can: hi311x: fix a signedness bug in hi3110_cmd()
MAINTAINERS: add Yasushi SHOJI as reviewer for the Microchip CAN BUS Analyzer Tool driver
scsi: fas216: Fix fall-through warning for Clang
scsi: acornscsi: Fix fall-through warning for clang
...

show more ...

Merge tag 'bus_remove_return_void-5.15' into next

This helps to remove conflict on idxd driver

Conflicts:
drivers/dma/idxd/sysfs.c
drivers/dma/idxd/bus.c

Greg says:

Bus: Make remove callback r

Merge tag 'bus_remove_return_void-5.15' into next

This helps to remove conflict on idxd driver

Conflicts:
drivers/dma/idxd/sysfs.c
drivers/dma/idxd/bus.c

Greg says:

Bus: Make remove callback return void tag

Tag for other trees/branches to pull from in order to have a stable
place to build off of if they want to add new busses for 5.15.

Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next

Required bump from v5.13-rc3 to v5.14-rc3, and to pick up sysfb compilation fixes.

Signed-off-by: Maarten Lankhorst <maarten.lankh

Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next

Required bump from v5.13-rc3 to v5.14-rc3, and to pick up sysfb compilation fixes.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

show more ...

Merge v5.14-rc3 into usb-next

We need the fixes in here, and this resolves a merge issue with
drivers/usb/dwc3/gadget.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'v5.13' into next

Sync up with the mainline to get the latest parport API.

Merge drm/drm-fixes into drm-misc-fixes

Backmerging to get tree to v5.14-rc3, as requested by Daniel.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge tag 'net-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski.
"Including fixes from bpf and netfilter.

Current release - regress

Merge tag 'net-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski.
"Including fixes from bpf and netfilter.

Current release - regressions:

- sock: fix parameter order in sock_setsockopt()

Current release - new code bugs:

- netfilter: nft_last:
- fix incorrect arithmetic when restoring last used
- honor NFTA_LAST_SET on restoration

Previous releases - regressions:

- udp: properly flush normal packet at GRO time

- sfc: ensure correct number of XDP queues; don't allow enabling the
feature if there isn't sufficient resources to Tx from any CPU

- dsa: sja1105: fix address learning getting disabled on the CPU port

- mptcp: addresses a rmem accounting issue that could keep packets in
subflow receive buffers longer than necessary, delaying MPTCP-level
ACKs

- ip_tunnel: fix mtu calculation for ETHER tunnel devices

- do not reuse skbs allocated from skbuff_fclone_cache in the napi
skb cache, we'd try to return them to the wrong slab cache

- tcp: consistently disable header prediction for mptcp

Previous releases - always broken:

- bpf: fix subprog poke descriptor tracking use-after-free

- ipv6:
- allocate enough headroom in ip6_finish_output2() in case
iptables TEE is used
- tcp: drop silly ICMPv6 packet too big messages to avoid
expensive and pointless lookups (which may serve as a DDOS
vector)
- make sure fwmark is copied in SYNACK packets
- fix 'disable_policy' for forwarded packets (align with IPv4)

- netfilter: conntrack:
- do not renew entry stuck in tcp SYN_SENT state
- do not mark RST in the reply direction coming after SYN packet
for an out-of-sync entry

- mptcp: cleanly handle error conditions with MP_JOIN and syncookies

- mptcp: fix double free when rejecting a join due to port mismatch

- validate lwtstate->data before returning from skb_tunnel_info()

- tcp: call sk_wmem_schedule before sk_mem_charge in zerocopy path

- mt76: mt7921: continue to probe driver when fw already downloaded

- bonding: fix multiple issues with offloading IPsec to (thru?) bond

- stmmac: ptp: fix issues around Qbv support and setting time back

- bcmgenet: always clear wake-up based on energy detection

Misc:

- sctp: move 198 addresses from unusable to private scope

- ptp: support virtual clocks and timestamping

- openvswitch: optimize operation for key comparison"

* tag 'net-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (158 commits)
net: dsa: properly check for the bridge_leave methods in dsa_switch_bridge_leave()
sfc: add logs explaining XDP_TX/REDIRECT is not available
sfc: ensure correct number of XDP queues
sfc: fix lack of XDP TX queues - error XDP TX failed (-22)
net: fddi: fix UAF in fza_probe
net: dsa: sja1105: fix address learning getting disabled on the CPU port
net: ocelot: fix switchdev objects synced for wrong netdev with LAG offload
net: Use nlmsg_unicast() instead of netlink_unicast()
octeontx2-pf: Fix uninitialized boolean variable pps
ipv6: allocate enough headroom in ip6_finish_output2()
net: hdlc: rename 'mod_init' & 'mod_exit' functions to be module-specific
net: bridge: multicast: fix MRD advertisement router port marking race
net: bridge: multicast: fix PIM hello router port marking race
net: phy: marvell10g: fix differentiation of 88X3310 from 88X3340
dsa: fix for_each_child.cocci warnings
virtio_net: check virtqueue_add_sgs() return value
mptcp: properly account bulk freed memory
selftests: mptcp: fix case multiple subflows limited by server
mptcp: avoid processing packet if a subflow reset
mptcp: fix syncookie process if mptcp can not_accept new subflow
...

show more ...

Merge branch 'ptp-virtual-clocks-and-timestamping'

Yangbo Lu says:

====================
ptp: support virtual clocks and timestamping

Current PTP driver exposes one PTP device to user which binds n

Merge branch 'ptp-virtual-clocks-and-timestamping'

Yangbo Lu says:

====================
ptp: support virtual clocks and timestamping

Current PTP driver exposes one PTP device to user which binds network
interface/interfaces to provide timestamping. Actually we have a way
utilizing timecounter/cyclecounter to virtualize any number of PTP
clocks based on a same free running physical clock for using.
The purpose of having multiple PTP virtual clocks is for user space
to directly/easily use them for multiple domains synchronization.

user
space: ^ ^
| SO_TIMESTAMPING new flag: | Packets with
| SOF_TIMESTAMPING_BIND_PHC | TX/RX HW timestamps
v v
+--------------------------------------------+
sock: | sock (new member sk_bind_phc) |
+--------------------------------------------+
^ ^
| ethtool_get_phc_vclocks | Convert HW timestamps
| | to sk_bind_phc
v v
+--------------+--------------+--------------+
vclock: | ptp1 | ptp2 | ptpN |
+--------------+--------------+--------------+
pclock: | ptp0 free running |
+--------------------------------------------+

The block diagram may explain how it works. Besides the PTP virtual
clocks, the packet HW timestamp converting to the bound PHC is also
done in sock driver. For user space, PTP virtual clocks can be
created via sysfs, and extended SO_TIMESTAMPING API (new flag
SOF_TIMESTAMPING_BIND_PHC) can be used to bind one PTP virtual clock
for timestamping.

The test tool timestamping.c (together with linuxptp phc_ctl tool) can
be used to verify:

# echo 4 > /sys/class/ptp/ptp0/n_vclocks
[ 129.399472] ptp ptp0: new virtual clock ptp2
[ 129.404234] ptp ptp0: new virtual clock ptp3
[ 129.409532] ptp ptp0: new virtual clock ptp4
[ 129.413942] ptp ptp0: new virtual clock ptp5
[ 129.418257] ptp ptp0: guarantee physical clock free running
#
# phc_ctl /dev/ptp2 set 10000
# phc_ctl /dev/ptp3 set 20000
#
# timestamping eno0 2 SOF_TIMESTAMPING_TX_HARDWARE SOF_TIMESTAMPING_RAW_HARDWARE SOF_TIMESTAMPING_BIND_PHC
# timestamping eno0 2 SOF_TIMESTAMPING_RX_HARDWARE SOF_TIMESTAMPING_RAW_HARDWARE SOF_TIMESTAMPING_BIND_PHC
# timestamping eno0 3 SOF_TIMESTAMPING_TX_HARDWARE SOF_TIMESTAMPING_RAW_HARDWARE SOF_TIMESTAMPING_BIND_PHC
# timestamping eno0 3 SOF_TIMESTAMPING_RX_HARDWARE SOF_TIMESTAMPING_RAW_HARDWARE SOF_TIMESTAMPING_BIND_PHC

Changes for v2:
- Converted to num_vclocks for creating virtual clocks.
- Guranteed physical clock free running when using virtual
clocks.
- Fixed build warning.
- Updated copyright.
Changes for v3:
- Supported PTP virtual clock in default in PTP driver.
- Protected concurrency of ptp->num_vclocks accessing.
- Supported PHC vclocks query via ethtool.
- Extended SO_TIMESTAMPING API for PHC binding.
- Converted HW timestamps to PHC bound, instead of previous
binding domain value to PHC idea.
- Other minor fixes.
Changes for v4:
- Used do_aux_work callback for vclock refreshing instead.
- Used unsigned int for vclocks number, and max_vclocks
for limitiation.
- Fixed mutex locking.
- Dynamically allocated memory for vclock index storage.
- Removed ethtool ioctl command for vclocks getting.
- Updated doc for ethtool phc vclocks get.
- Converted to mptcp_setsockopt_sol_socket_timestamping().
- Passed so_timestamping for sock_set_timestamping.
- Fixed checkpatch/build.
- Other minor fixed.
Changes for v5:
- Fixed checkpatch/build/bug reported by test robot.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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ethtool: add a new command for getting PHC virtual clocks

Add an interface for getting PHC (PTP Hardware Clock)
virtual clocks, which are based on PHC physical clock
providing hardware timestamp to

ethtool: add a new command for getting PHC virtual clocks

Add an interface for getting PHC (PTP Hardware Clock)
virtual clocks, which are based on PHC physical clock
providing hardware timestamp to network packets.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

show more ...

Merge tag 'v5.13-rc3' into asoc-5.13

Linux 5.13-rc3

Merge drm/drm-next into drm-intel-gt-next

Pulling in -rc2 fixes and TTM changes that next upcoming patches depend
on.

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Merge tag 'v5.13-rc2' into spi-5.13

Linux 5.13-rc2

Merge branch 'fixes-rc1' into fixes

Merge drm/drm-next into drm-intel-next

Time to get back in sync...

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-misc-next

Backmerging to get v5.12 fixes. Requested for vmwgfx.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-fixes into drm-misc-fixes

Start this new release drm-misc-fixes branch

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Merge tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Core:

- bpf:
- allow bpf programs calling kernel

Merge tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Core:

- bpf:
- allow bpf programs calling kernel functions (initially to
reuse TCP congestion control implementations)
- enable task local storage for tracing programs - remove the
need to store per-task state in hash maps, and allow tracing
programs access to task local storage previously added for
BPF_LSM
- add bpf_for_each_map_elem() helper, allowing programs to walk
all map elements in a more robust and easier to verify fashion
- sockmap: support UDP and cross-protocol BPF_SK_SKB_VERDICT
redirection
- lpm: add support for batched ops in LPM trie
- add BTF_KIND_FLOAT support - mostly to allow use of BTF on
s390 which has floats in its headers files
- improve BPF syscall documentation and extend the use of kdoc
parsing scripts we already employ for bpf-helpers
- libbpf, bpftool: support static linking of BPF ELF files
- improve support for encapsulation of L2 packets

- xdp: restructure redirect actions to avoid a runtime lookup,
improving performance by 4-8% in microbenchmarks

- xsk: build skb by page (aka generic zerocopy xmit) - improve
performance of software AF_XDP path by 33% for devices which don't
need headers in the linear skb part (e.g. virtio)

- nexthop: resilient next-hop groups - improve path stability on
next-hops group changes (incl. offload for mlxsw)

- ipv6: segment routing: add support for IPv4 decapsulation

- icmp: add support for RFC 8335 extended PROBE messages

- inet: use bigger hash table for IP ID generation

- tcp: deal better with delayed TX completions - make sure we don't
give up on fast TCP retransmissions only because driver is slow in
reporting that it completed transmitting the original

- tcp: reorder tcp_congestion_ops for better cache locality

- mptcp:
- add sockopt support for common TCP options
- add support for common TCP msg flags
- include multiple address ids in RM_ADDR
- add reset option support for resetting one subflow

- udp: GRO L4 improvements - improve 'forward' / 'frag_list'
co-existence with UDP tunnel GRO, allowing the first to take place
correctly even for encapsulated UDP traffic

- micro-optimize dev_gro_receive() and flow dissection, avoid
retpoline overhead on VLAN and TEB GRO

- use less memory for sysctls, add a new sysctl type, to allow using
u8 instead of "int" and "long" and shrink networking sysctls

- veth: allow GRO without XDP - this allows aggregating UDP packets
before handing them off to routing, bridge, OvS, etc.

- allow specifing ifindex when device is moved to another namespace

- netfilter:
- nft_socket: add support for cgroupsv2
- nftables: add catch-all set element - special element used to
define a default action in case normal lookup missed
- use net_generic infra in many modules to avoid allocating
per-ns memory unnecessarily

- xps: improve the xps handling to avoid potential out-of-bound
accesses and use-after-free when XPS change race with other
re-configuration under traffic

- add a config knob to turn off per-cpu netdev refcnt to catch
underflows in testing

Device APIs:

- add WWAN subsystem to organize the WWAN interfaces better and
hopefully start driving towards more unified and vendor-
independent APIs

- ethtool:
- add interface for reading IEEE MIB stats (incl. mlx5 and bnxt
support)
- allow network drivers to dump arbitrary SFP EEPROM data,
current offset+length API was a poor fit for modern SFP which
define EEPROM in terms of pages (incl. mlx5 support)

- act_police, flow_offload: add support for packet-per-second
policing (incl. offload for nfp)

- psample: add additional metadata attributes like transit delay for
packets sampled from switch HW (and corresponding egress and
policy-based sampling in the mlxsw driver)

- dsa: improve support for sandwiched LAGs with bridge and DSA

- netfilter:
- flowtable: use direct xmit in topologies with IP forwarding,
bridging, vlans etc.
- nftables: counter hardware offload support

- Bluetooth:
- improvements for firmware download w/ Intel devices
- add support for reading AOSP vendor capabilities
- add support for virtio transport driver

- mac80211:
- allow concurrent monitor iface and ethernet rx decap
- set priority and queue mapping for injected frames

- phy: add support for Clause-45 PHY Loopback

- pci/iov: add sysfs MSI-X vector assignment interface to distribute
MSI-X resources to VFs (incl. mlx5 support)

New hardware/drivers:

- dsa: mv88e6xxx: add support for Marvell mv88e6393x - 11-port
Ethernet switch with 8x 1-Gigabit Ethernet and 3x 10-Gigabit
interfaces.

- dsa: support for legacy Broadcom tags used on BCM5325, BCM5365 and
BCM63xx switches

- Microchip KSZ8863 and KSZ8873; 3x 10/100Mbps Ethernet switches

- ath11k: support for QCN9074 a 802.11ax device

- Bluetooth: Broadcom BCM4330 and BMC4334

- phy: Marvell 88X2222 transceiver support

- mdio: add BCM6368 MDIO mux bus controller

- r8152: support RTL8153 and RTL8156 (USB Ethernet) chips

- mana: driver for Microsoft Azure Network Adapter (MANA)

- Actions Semi Owl Ethernet MAC

- can: driver for ETAS ES58X CAN/USB interfaces

Pure driver changes:

- add XDP support to: enetc, igc, stmmac

- add AF_XDP support to: stmmac

- virtio:
- page_to_skb() use build_skb when there's sufficient tailroom
(21% improvement for 1000B UDP frames)
- support XDP even without dedicated Tx queues - share the Tx
queues with the stack when necessary

- mlx5:
- flow rules: add support for mirroring with conntrack, matching
on ICMP, GTP, flex filters and more
- support packet sampling with flow offloads
- persist uplink representor netdev across eswitch mode changes
- allow coexistence of CQE compression and HW time-stamping
- add ethtool extended link error state reporting

- ice, iavf: support flow filters, UDP Segmentation Offload

- dpaa2-switch:
- move the driver out of staging
- add spanning tree (STP) support
- add rx copybreak support
- add tc flower hardware offload on ingress traffic

- ionic:
- implement Rx page reuse
- support HW PTP time-stamping

- octeon: support TC hardware offloads - flower matching on ingress
and egress ratelimitting.

- stmmac:
- add RX frame steering based on VLAN priority in tc flower
- support frame preemption (FPE)
- intel: add cross time-stamping freq difference adjustment

- ocelot:
- support forwarding of MRP frames in HW
- support multiple bridges
- support PTP Sync one-step timestamping

- dsa: mv88e6xxx, dpaa2-switch: offload bridge port flags like
learning, flooding etc.

- ipa: add IPA v4.5, v4.9 and v4.11 support (Qualcomm SDX55, SM8350,
SC7280 SoCs)

- mt7601u: enable TDLS support

- mt76:
- add support for 802.3 rx frames (mt7915/mt7615)
- mt7915 flash pre-calibration support
- mt7921/mt7663 runtime power management fixes"

* tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2451 commits)
net: selftest: fix build issue if INET is disabled
net: netrom: nr_in: Remove redundant assignment to ns
net: tun: Remove redundant assignment to ret
net: phy: marvell: add downshift support for M88E1240
net: dsa: ksz: Make reg_mib_cnt a u8 as it never exceeds 255
net/sched: act_ct: Remove redundant ct get and check
icmp: standardize naming of RFC 8335 PROBE constants
bpf, selftests: Update array map tests for per-cpu batched ops
bpf: Add batched ops support for percpu array
bpf: Implement formatted output helpers with bstr_printf
seq_file: Add a seq_bprintf function
sfc: adjust efx->xdp_tx_queue_count with the real number of initialized queues
net:nfc:digital: Fix a double free in digital_tg_recv_dep_req
net: fix a concurrency bug in l2tp_tunnel_register()
net/smc: Remove redundant assignment to rc
mpls: Remove redundant assignment to err
llc2: Remove redundant assignment to rc
net/tls: Remove redundant initialization of record
rds: Remove redundant assignment to nr_sig
dt-bindings: net: mdio-gpio: add compatible for microchip,mdio-smi0
...

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Merge branch 'ethtool-stats'

Jakub Kicinski says:

====================
ethtool: add uAPI for reading standard stats

Continuing the effort of providing a unified access method
to standard stats, an

Merge branch 'ethtool-stats'

Jakub Kicinski says:

====================
ethtool: add uAPI for reading standard stats

Continuing the effort of providing a unified access method
to standard stats, and explicitly tying the definitions to
the standards this series adds an API for general stats
which do no fit into more targeted control APIs.

There is nothing clever here, just a netlink API for dumping
statistics defined by standards and RFCs which today end up
in ethtool -S under infinite variations of names.

This series adds basic IEEE stats (for PHY, MAC, Ctrl frames)
and RMON stats. AFAICT other RFCs only duplicate the IEEE
stats.

This series does _not_ add a netlink API to read driver-defined
stats. There seems to be little to gain from moving that part
to netlink.

The netlink message format is very simple, and aims to allow
adding stats and groups with no changes to user tooling (which
IIUC is expected for ethtool).

On user space side we can re-use -S, and make it dump
standard stats if --groups are defined.

$ ethtool -S eth0 --groups eth-phy eth-mac eth-ctrl rmon
Stats for eth0:
eth-phy-SymbolErrorDuringCarrier: 0
eth-mac-FramesTransmittedOK: 0
eth-mac-FrameTooLongErrors: 0
eth-ctrl-MACControlFramesTransmitted: 0
eth-ctrl-MACControlFramesReceived: 1
eth-ctrl-UnsupportedOpcodesReceived: 0
rmon-etherStatsUndersizePkts: 0
rmon-etherStatsJabbers: 0
rmon-rx-etherStatsPkts64Octets: 1
rmon-rx-etherStatsPkts128to255Octets: 0
rmon-rx-etherStatsPkts1024toMaxOctets: 1
rmon-tx-etherStatsPkts64Octets: 1
rmon-tx-etherStatsPkts128to255Octets: 0
rmon-tx-etherStatsPkts1024toMaxOctets: 1

v1:

Driver support for mlxsw, mlx5 and bnxt included.

Compared to the RFC I went ahead with wrapping the stats into
a 1:1 nest. Now IDs of stats can start from 0, at a cost of
slightly "careful" u64 alignment handling.

v2:

Add missing kdoc in patch 5.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

show more ...

ethtool: add a new command for reading standard stats

Add an interface for reading standard stats, including
stats which don't have a corresponding control interface.

Start with IEEE 802.3 PHY stat

ethtool: add a new command for reading standard stats

Add an interface for reading standard stats, including
stats which don't have a corresponding control interface.

Start with IEEE 802.3 PHY stats. There seems to be only
one stat to expose there.

Define API to not require user space changes when new
stats or groups are added. Groups are based on bitset,
stats have a string set associated.

v1: wrap stats in a nest

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

show more ...

Merge branch 'ethtool-eeprom'

Moshe Shemesh says:

====================
ethtool: Extend module EEPROM dump API

Ethtool supports module EEPROM dumps via the `ethtool -m <dev>` command.
But in curren

Merge branch 'ethtool-eeprom'

Moshe Shemesh says:

====================
ethtool: Extend module EEPROM dump API

Ethtool supports module EEPROM dumps via the `ethtool -m <dev>` command.
But in current state its functionality is limited - offset and length
parameters, which are used to specify a linear desired region of EEPROM
data to dump, is not enough, considering emergence of complex module
EEPROM layouts such as CMIS 4.0.
Moreover, CMIS 4.0 extends the amount of pages that may be accessible by
introducing another parameter for page addressing - banks.

Besides, currently module EEPROM is represented as a chunk of
concatenated pages, where lower 128 bytes of all pages, except page 00h,
are omitted. Offset and length are used to address parts of this fake
linear memory. But in practice drivers, which implement
get_module_info() and get_module_eeprom() ethtool ops still calculate
page number and set I2C address on their own.

This series tackles these issues by adding ethtool op, which allows to
pass page number, bank number and I2C address in addition to offset and
length parameters to the driver, adds corresponding netlink
infrastructure and implements the new interface in mlx5 driver.

This allows to extend userspace 'ethtool -m' CLI by adding new
parameters - page, bank and i2c. New command line format:
ethtool -m <dev> [hex on|off] [raw on|off] [offset N] [length N] [page N] [bank N] [i2c N]

The consequence of this series is a possibility to dump arbitrary EEPROM
page at a time, in contrast to dumps of concatenated pages. Therefore,
offset and length change their semantics and may be used only to specify
a part of data within half page boundary, which size is currently limited
to 128 bytes.

As for drivers that support legacy get_module_info() and
get_module_eeprom() pair, the series addresses it by implementing a
fallback mechanism. As mentioned earlier, such drivers derive a page
number from 'global' offset, so this can be done vice versa without
their involvement thanks to standardization. If kernel netlink handler
of 'ethtool -m' command detects that new ethtool op is not supported by
the driver, it calculates offset from given page number and page offset
and calls old ndos, if they are available.
====================

\Signed-off-by: David S. Miller <davem@davemloft.net>

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ethtool: Allow network drivers to dump arbitrary EEPROM data

Define get_module_eeprom_by_page() ethtool callback and implement
netlink infrastructure.

get_module_eeprom_by_page() allows network dri

ethtool: Allow network drivers to dump arbitrary EEPROM data

Define get_module_eeprom_by_page() ethtool callback and implement
netlink infrastructure.

get_module_eeprom_by_page() allows network drivers to dump a part of
module's EEPROM specified by page and bank numbers along with offset and
length. It is effectively a netlink replacement for get_module_info()
and get_module_eeprom() pair, which is needed due to emergence of
complex non-linear EEPROM layouts.

Signed-off-by: Vladyslav Tarasiuk <vladyslavt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Merge branch 'ethtool-fec-netlink'

Jakub Kicinski says:

====================
ethtool: support FEC configuration over netlink

This series adds support for the equivalents of ETHTOOL_GFECPARAM
and E

Merge branch 'ethtool-fec-netlink'

Jakub Kicinski says:

====================
ethtool: support FEC configuration over netlink

This series adds support for the equivalents of ETHTOOL_GFECPARAM
and ETHTOOL_SFECPARAM over netlink.

As a reminder - this is an API which allows user to query current
FEC mode, as well as set FEC manually if autoneg is disabled.
It does not configure anything if autoneg is enabled (that said
few/no drivers currently reject .set_fecparam calls while autoneg
is disabled, hopefully FW will just ignore the settings).

The existing functionality is mostly preserved in the new API.
The ioctl interface uses a set of flags, and link modes to tell
user which modes are supported. Here is how the flags translate
to the new interface (skipping descriptions for actual FEC modes):

ioctl flag | description | new API
================================================================
ETHTOOL_FEC_OFF | disabled (supported) | \
ETHTOOL_FEC_RS | | ` link mode bitset
ETHTOOL_FEC_BASER | | / .._A_FEC_MODES
ETHTOOL_FEC_LLRS | | /
ETHTOOL_FEC_AUTO | pick based on cable | bool .._A_FEC_AUTO
ETHTOOL_FEC_NONE | not supported | no bit, no AUTO reported

Since link modes are already depended on (although somewhat implicitly)
for expressing supported modes - the new interface uses them for
the manual configuration, as well as uses link mode bit number
to communicate the active mode.

Use of link modes allows us to define any number of FEC modes we want,
and reuse the strset we already have defined.

Separating AUTO as its own attribute is the biggest changed compared
to the ioctl. It means drivers can no longer report AUTO as the
active FEC mode because there is no link mode for AUTO.
active_fec == AUTO makes little sense in the first place IMHO,
active_fec should be the actual mode, so hopefully this is fine.

The other minor departure is that None is no longer explicitly
expressed in the API. But drivers are reasonable in handling of
this somewhat pointless bit, so I'm not expecting any issues there.

One extension which could be considered would be moving active FEC
to ETHTOOL_MSG_LINKMODE_*, but then why not move all of FEC into
link modes? I don't know where to draw the line.

netdevsim support and a simple self test are included.

Next step is adding stats similar to the ones added for pause.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

,

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ethtool: support FEC settings over netlink

Add FEC API to netlink.

This is not a 1-to-1 conversion.

FEC settings already depend on link modes to tell user which
modes are supported. Take this furt

ethtool: support FEC settings over netlink

Add FEC API to netlink.

This is not a 1-to-1 conversion.

FEC settings already depend on link modes to tell user which
modes are supported. Take this further an use link modes for
manual configuration. Old struct ethtool_fecparam is still
used to talk to the drivers, so we need to translate back
and forth. We can revisit the internal API if number of FEC
encodings starts to grow.

Enforce only one active FEC bit (by using a bit position
rather than another mask).

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

show more ...

Merge branch 'next' into for-linus

Prepare input updates for 5.11 merge window.