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Use enum decoding on auto-ints. Looks like we only had enum
auto-ints for input values until now. Upcoming RSS work will
need this to declare an attribute with flags as a uint.
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250708220640.2738464-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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After commit 040cef30b5e6 ("net: ethtool: move get_rxfh callback
under the rss_lock") we're expected to take rss_lock around get.
Switch dump to using the new prep helper and move the locking into it.
Link: https://patch.msgid.link/20250708220640.2738464-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Johannes Berg says:
====================
Quite a bit more work, notably:
- mt76: firmware recovery improvements, MLO work
- iwlwifi: use embedded PNVM in (to be released) FW images
to fix compatibility issues
- cfg80211/mac80211: extended regulatory info support (6 GHz)
- cfg80211: use "faux device" for regulatory
* tag 'wireless-next-2025-07-10' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (48 commits)
wifi: mac80211: don't complete management TX on SAE commit
wifi: cfg80211/mac80211: implement dot11ExtendedRegInfoSupport
wifi: mac80211: send extended MLD capa/ops if AP has it
wifi: mac80211: copy first_part into HW scan
wifi: cfg80211: add a flag for the first part of a scan
wifi: mac80211: remove DISALLOW_PUNCTURING_5GHZ code
wifi: cfg80211: only verify part of Extended MLD Capabilities
wifi: nl80211: make nl80211_check_scan_flags() type safe
wifi: cfg80211: hide scan internals
wifi: mac80211: fix deactivated link CSA
wifi: mac80211: add mandatory bitrate support for 6 GHz
wifi: mac80211: remove spurious blank line
wifi: mac80211: verify state before connection
wifi: mac80211: avoid weird state in error path
wifi: iwlwifi: mvm: remove support for iwl_wowlan_info_notif_v4
wifi: iwlwifi: bump minimum API version in BZ
wifi: iwlwifi: mvm: remove unneeded argument
wifi: iwlwifi: mvm: remove MLO GTK rekey code
wifi: iwlwifi: pcie: rename iwl_pci_gen1_2_probe() argument
wifi: iwlwifi: match discrete/integrated to fix some names
...
====================
Link: https://patch.msgid.link/20250710123113.24878-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Quite a number of fixes still:
- mt76 (hadn't sent any fixes so far)
- RCU
- scanning
- decapsulation offload
- interface combinations
- rt2x00: build fix (bad function pointer prototype)
- cfg80211: prevent A-MSDU flipping attacks in mesh
- zd1211rw: prevent race ending with NULL ptr deref
- cfg80211/mac80211: more S1G fixes
- mwifiex: avoid WARN on certain RX frames
- mac80211:
- avoid stack data leak in WARN cases
- fix non-transmitted BSSID search
(on certain multi-BSSID APs)
- always initialize key list so driver
iteration won't crash
- fix monitor interface in device restart
- fix __free() annotation usage
* tag 'wireless-2025-07-10' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless: (26 commits)
wifi: mac80211: add the virtual monitor after reconfig complete
wifi: mac80211: always initialize sdata::key_list
wifi: mac80211: Fix uninitialized variable with __free() in ieee80211_ml_epcs()
wifi: mt76: mt792x: Limit the concurrent STA and SoftAP to operate on the same channel
wifi: mt76: mt7925: Fix null-ptr-deref in mt7925_thermal_init()
wifi: mt76: fix queue assignment for deauth packets
wifi: mt76: add a wrapper for wcid access with validation
wifi: mt76: mt7921: prevent decap offload config before STA initialization
wifi: mt76: mt7925: prevent NULL pointer dereference in mt7925_sta_set_decap_offload()
wifi: mt76: mt7925: fix incorrect scan probe IE handling for hw_scan
wifi: mt76: mt7925: fix invalid array index in ssid assignment during hw scan
wifi: mt76: mt7925: fix the wrong config for tx interrupt
wifi: mt76: Remove RCU section in mt7996_mac_sta_rc_work()
wifi: mt76: Move RCU section in mt7996_mcu_add_rate_ctrl()
wifi: mt76: Move RCU section in mt7996_mcu_add_rate_ctrl_fixed()
wifi: mt76: Move RCU section in mt7996_mcu_set_fixed_field()
wifi: mt76: Assume __mt76_connac_mcu_alloc_sta_req runs in atomic context
wifi: prevent A-MSDU attacks in mesh networks
wifi: rt2x00: fix remove callback type mismatch
wifi: mac80211: reject VHT opmode for unsupported channel widths
...
====================
Link: https://patch.msgid.link/20250710122212.24272-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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syzbot found a potential access to uninit-value in nf_flow_pppoe_proto()
Blamed commit forgot the Ethernet header.
BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27
nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27
nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
nf_hook_slow+0xe1/0x3d0 net/netfilter/core.c:623
nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline]
nf_ingress net/core/dev.c:5742 [inline]
__netif_receive_skb_core+0x4aff/0x70c0 net/core/dev.c:5837
__netif_receive_skb_one_core net/core/dev.c:5975 [inline]
__netif_receive_skb+0xcc/0xac0 net/core/dev.c:6090
netif_receive_skb_internal net/core/dev.c:6176 [inline]
netif_receive_skb+0x57/0x630 net/core/dev.c:6235
tun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485
tun_get_user+0x4ee0/0x6b40 drivers/net/tun.c:1938
tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1984
new_sync_write fs/read_write.c:593 [inline]
vfs_write+0xb4b/0x1580 fs/read_write.c:686
ksys_write fs/read_write.c:738 [inline]
__do_sys_write fs/read_write.c:749 [inline]
Reported-by: syzbot+bf6ed459397e307c3ad2@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/686bc073.a00a0220.c7b3.0086.GAE@google.com/T/#u
Fixes: 87b3593bed18 ("netfilter: flowtable: validate pppoe header")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Pablo Neira Ayuso <pablo@netfilter.org>
Link: https://patch.msgid.link/20250707124517.614489-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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ND_PRINTK with val > 1 only works when the ND_DEBUG was set in compilation
phase. Replace it with dynamic debug. Convert ND_PRINTK with val <= 1 to
net_{err,warn}_ratelimited, and convert the rest to net_dbg_ratelimited.
Suggested-by: Ido Schimmel <idosch@idosch.org>
Signed-off-by: Wang Liang <wangliang74@huawei.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20250708033342.1627636-1-wangliang74@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Inochi Amaoto says:
====================
riscv: sophgo: Add ethernet support for SG2042
The ethernet controller of SG2042 is Synopsys DesignWare IP with
tx clock. Add device id for it.
This patch can only be tested on a SG2042 evb board, as pioneer
does not expose this device.
The user dts patch link:
https://lore.kernel.org/linux-riscv/cover.1751700954.git.rabenda.cn@gmail.com
====================
Link: https://patch.msgid.link/20250708064052.507094-1-inochiama@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add "snps,dwmac-5.30a" compatible string for 5.00a version that
can avoid to define some platform data in the glue layer.
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Tested-by: Han Gao <rabenda.cn@gmail.com>
Link: https://patch.msgid.link/20250708064052.507094-4-inochiama@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Adds device id of the ethernet controller on the Sophgo SG2042 SoC.
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Tested-by: Han Gao <rabenda.cn@gmail.com>
Link: https://patch.msgid.link/20250708064052.507094-3-inochiama@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The GMAC IP on SG2042 is a standard Synopsys DesignWare MAC
(version 5.00a) with tx clock.
Add necessary compatible string for this device.
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Tested-by: Han Gao <rabenda.cn@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20250708064052.507094-2-inochiama@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Frank Wunderlich says:
====================
further mt7988 devicetree work
This series continues mt7988 devicetree work
- Extend cpu frequency scaling with CCI
- GPIO leds
- Basic network-support (ethernet controller + builtin switch + SFP Cages)
depencies (i hope this list is complete and latest patches/series linked):
support interrupt-names is optional again as i re-added the reserved IRQs
(they are not unusable as i thought and can allow features in future)
https://patchwork.kernel.org/project/netdevbpf/patch/20250619132125.78368-2-linux@fw-web.de/
needs change in mtk ethernet driver for the sram to be read from separate node:
https://patchwork.kernel.org/project/netdevbpf/patch/c2b9242229d06af4e468204bcf42daa1535c3a72.1751461762.git.daniel@makrotopia.org/
for SFP-Function (macs currently disabled):
PCS clearance which is a 1.5 year discussion currently ongoing
Daniel asked netdev for a way 2 go:
https://lore.kernel.org/netdev/aEwfME3dYisQtdCj@pidgin.makrotopia.org/
e.g. something like this (one of):
* https://patchwork.kernel.org/project/netdevbpf/patch/20250610233134.3588011-4-sean.anderson@linux.dev/ (v6)
* https://patchwork.kernel.org/project/netdevbpf/patch/20250511201250.3789083-4-ansuelsmth@gmail.com/ (v4)
* https://patchwork.kernel.org/project/netdevbpf/patch/ba4e359584a6b3bc4b3470822c42186d5b0856f9.1721910728.git.daniel@makrotopia.org/
full usxgmii driver:
https://patchwork.kernel.org/project/netdevbpf/patch/07845ec900ba41ff992875dce12c622277592c32.1702352117.git.daniel@makrotopia.org/
first PCS-discussion is here:
https://patchwork.kernel.org/project/netdevbpf/patch/8aa905080bdb6760875d62cb3b2b41258837f80e.1702352117.git.daniel@makrotopia.org/
some more here:
https://lore.kernel.org/netdev/20250511201250.3789083-4-ansuelsmth@gmail.com/
and then dts nodes for sgmiisys+usxgmii+2g5 firmware
when above depencies are solved the mac1/2 can be enabled and 2.5G phy/SFP slots will work.
====================
Link: https://patch.msgid.link/20250709111147.11843-1-linux@fw-web.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Mt7988 buildin switch has own mdio bus where ge-phys are connected.
Add related property for this.
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20250709111147.11843-7-linux@fw-web.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add own dsa-port binding for SoC with internal switch where only phy-mode
'internal' is valid.
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20250709111147.11843-6-linux@fw-web.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Meditak Filogic SoCs (MT798x) have dedicated MMIO-SRAM for dma operations.
MT7981 and MT7986 currently use static offset to ethernet MAC register
which will be changed in separate patch once this way is accepted.
Add "sram" property to map ethernet controller to dedicated mmio-sram node.
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20250709111147.11843-5-linux@fw-web.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In preparation for MT7988 and RSS/LRO allow the interrupt-names
property.
In this way driver can request the interrupts by name which is much
more readable in the driver code and SoC's dtsi than relying on a
specific order.
Frame-engine-IRQs (fe0..3):
MT7621, MT7628: 1 FE-IRQ
MT7622, MT7623: 3 FE-IRQs (only two used by the driver for now)
MT7981, MT7986: 4 FE-IRQs (only two used by the driver for now)
RSS/LRO IRQs (pdma0..3) additional only on Filogic (MT798x) with
count of 4. So all IRQ-names (8) for Filogic.
Set boundaries for all compatibles same as irq count.
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20250709111147.11843-4-linux@fw-web.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Increase the maximum IRQ count to 8 (4 FE + 4 RSS/LRO).
Frame-engine-IRQs (max 4):
MT7621, MT7628: 1 FE-IRQ
MT7622, MT7623: 3 FE-IRQs (only two used by the driver for now)
MT7981, MT7986, MT7988: 4 FE-IRQs (only two used by the driver for now)
Mediatek Filogic SoCs (mt798x) have 4 additional IRQs for RSS and/or
LRO. So MT798x have 8 IRQs in total.
MT7981 does not have a ethernet-node yet.
MT7986 Ethernet node is updated with RSS/LRO IRQs in this series.
MT7988 Ethernet node is added in this series.
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20250709111147.11843-3-linux@fw-web.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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MT7888 have 3 Macs and so its nodes have names from mac0 - mac2. Update
pattern to fix this.
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20250709111147.11843-2-linux@fw-web.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The ice_get_vf_by_id() function is used to obtain a reference to a VF
structure based on its ID. The ice_sriov_set_msix_vec_count() function
needs to get a VF reference starting from the VF PCI device, and uses
pci_iov_vf_id() to get the VF ID. This pattern is currently uncommon in the
ice driver. However, the live migration module will introduce many more
such locations.
Add a helper wrapper ice_get_vf_by_dev() which takes the VF PCI device and
calls ice_get_vf_by_id() using pci_iov_vf_id() to get the VF ID.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Commit 05c16687e0cc ("ice: set MSI-X vector count on VF") added support to
change the vector count for VFs as part of ice_sriov_set_msix_vec_count().
This function modifies and rebuilds the target VF with the requested number
of MSI-X vectors.
Future support for live migration will add a call to
ice_sriov_set_msix_vec_count() to ensure that a migrated VF has the proper
MSI-X vector count. In most cases, this request will be to set the MSI-X
vector count to its current value. In that case, no work is necessary.
Rather than requiring the caller to check this, update the function to
check and exit early if the vector count is already at the requested value.
This avoids an unnecessary VF rebuild.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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The ice_sriov_set_msix_vec_count() obtains the VF device ID in a strange
way by iterating over the possible VF IDs and calling
pci_iov_virtfn_devfn to calculate the device and function combos and
compare them to the pdev->devfn.
This is unnecessary. The pci_iov_vf_id() helper already exists which does
the reverse calculation of pci_iov_virtfn_devfn(), which is much simpler
and avoids the loop construction. Use this instead.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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The live migration process will require configuring the target VF with the
data provided from the source host. A few helper functions in ice_sriov.c
and ice_virtchnl.c will be needed for this process, but are currently
static.
Expose these functions in their respective headers so that the live
migration module can use them during the migration process.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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A future change is going to need to call ice_vsi_update_l2tsel from a new
context outside of ice_virtchnl.c
Since this function deals with a generic VSI, move it into ice_lib.c to
enable calling it from other places in the ice driver.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Madhu Chittim <madhu.chittim@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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The VF can program the RSS hash configuration over virtchnl. It does this
by sending a u64 bitmask which represents the current hash configuration.
It is not trivial to reverse the hardware configuration back to this hash
set for migration. Instead, save the value to the ice_vf structure when its
modified by the VF.
The rss_hashcfg value is an 8-byte field. Make room for it in ice_vf by
re-arranging some of the existing fields. There is a 4-byte gap after the
first_vector_idx, and a 4-byte gap between max_tx_rate and vf_states. Move
first_vector_idx into the later 4-byte gap, creating an 8 byte area where
rss_hashcfg can be placed. Also move the num_msix field near min_tx_rate,
filling 2 bytes of a 3 byte hole.
The end result of these changes enables placing the rss_hashcfg field into
the structure while also saving 8 bytes in size. It looks like there are a
handful of more possible cleanups to reduce the size even further, but
those have been left as a future cleanup.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Madhu Chittim <madhu.chittim@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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The live migration driver will need to save and restore the Tx queue
context state from the hardware registers. This state contains both static
fields which do not change during Tx traffic as well as dynamic fields
which may change during Tx traffic.
Unlike the Rx context, the Tx queue context is accessed indirectly from
GLCOMM_QTX_CNTX_CTL and GLCOMM_QTX_CNTX_DATA registers. These registers are
shared by multiple PFs on the same PCIe card. Multiple PFs cannot safely
access the registers simultaneously, and there is no hardware semaphore or
logic to control access. To handle this, introduce the txq_ctx_lock to the
ice_adapter structure. This is similar to the ptp_gltsyn_time_lock. All PFs
on the same adapter share this structure, and use it to serialize access to
the registers to prevent error.
Add a new functions to get and set the Tx queue context through the
GLCOMM_QTX_CNTX_CTL interface. The hardware context values are stored in
the registers using the same packed format as the Admin Queue buffer.
The hardware buffer is 40 bytes wide, as it contains an additional 18 bytes
of internal state not sent with the Admin Queue buffer. For this reason, a
separate typedef and packing function must be used. We can share the same
packed fields definitions because we never need to unpack the internal
state. This is preferred, as it ensures the internal state is zero'd when
writing into HW, and avoids issues with reading by u32 registers into a
buffer of 22 bytes in length. Thanks to the typedefs, misuse of the API
with the wrong size buffer can easily be caught at compile time.
Note reading this data from hardware is essential because the current Tx
queue context may be different from the context as initially programmed by
the driver during VF initialization. When migrating a VF we must ensure the
target VF has identical context as the source VF did.
Co-developed-by: Yahui Cao <yahui.cao@intel.com>
Signed-off-by: Yahui Cao <yahui.cao@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Madhu Chittim <madhu.chittim@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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https://github.com/pabeni/linux-devel
Paolo Abeni says:
====================
virtio: introduce GSO over UDP tunnel
Some virtualized deployments use UDP tunnel pervasively and are impacted
negatively by the lack of GSO support for such kind of traffic in the
virtual NIC driver.
The virtio_net specification recently introduced support for GSO over
UDP tunnel, this series updates the virtio implementation to support
such a feature.
Currently the kernel virtio support limits the feature space to 64,
while the virtio specification allows for a larger number of features.
Specifically the GSO-over-UDP-tunnel-related virtio features use bits
65-69.
The first four patches in this series rework the virtio and vhost
feature support to cope with up to 128 bits. The limit is set by
a define and could be easily raised in future, as needed.
This implementation choice is aimed at keeping the code churn as
limited as possible. For the same reason, only the virtio_net driver is
reworked to leverage the extended feature space; all other
virtio/vhost drivers are unaffected, but could be upgraded to support
the extended features space in a later time.
The last four patches bring in the actual GSO over UDP tunnel support.
As per specification, some additional fields are introduced into the
virtio net header to support the new offload. The presence of such
fields depends on the negotiated features.
New helpers are introduced to convert the UDP-tunneled skb metadata to
an extended virtio net header and vice versa. Such helpers are used by
the tun and virtio_net driver to cope with the newly supported offloads.
Tested with basic stream transfer with all the possible permutations of
host kernel/qemu/guest kernel with/without GSO over UDP tunnel support.
====================
Link: https://patch.msgid.link/cover.1751874094.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In order to support live migration, the ice driver will need to read
certain data from the Rx queue context. This is stored in the hardware in a
packed format.
Since we use <linux/packing.h> for the mapping between the packed hardware
format and the unpacked structure, it is trivial to enable unpacking
support via the unpack_fields() function.
Add the ice_unpack_rxq_ctx() function based on the unpack_fields() API.
Re-use the same field definitions from the packing implementation.
Add ice_copy_rxq_ctx_from_hw() to copy the Rx queue context data from the
hardware registers.
Use these to implement ice_read_rxq_ctx() which will return the Rx queue
context to the caller in its unpacked ice_rlan_ctx struct.
This will enable the migration logic access to the relevant data about the
Rx device queues. It can easily be copied to the target system as part of
the migration payload, where it will be used to configure the Rx queues.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Madhu Chittim <madhu.chittim@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
|
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Cross-merge networking fixes after downstream PR (net-6.16-rc6).
No conflicts.
Adjacent changes:
Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml
0a12c435a1d6 ("dt-bindings: net: sun8i-emac: Add A100 EMAC compatible")
b3603c0466a8 ("dt-bindings: net: sun8i-emac: Rename A523 EMAC0 to GMAC0")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from Bluetooth.
Current release - regressions:
- tcp: refine sk_rcvbuf increase for ooo packets
- bluetooth: fix attempting to send HCI_Disconnect to BIS handle
- rxrpc: fix over large frame size warning
- eth: bcmgenet: initialize u64 stats seq counter
Previous releases - regressions:
- tcp: correct signedness in skb remaining space calculation
- sched: abort __tc_modify_qdisc if parent class does not exist
- vsock: fix transport_{g2h,h2g} TOCTOU
- rxrpc: fix bug due to prealloc collision
- tipc: fix use-after-free in tipc_conn_close().
- bluetooth: fix not marking Broadcast Sink BIS as connected
- phy: qca808x: fix WoL issue by utilizing at8031_set_wol()
- eth: am65-cpsw-nuss: fix skb size by accounting for skb_shared_info
Previous releases - always broken:
- netlink: fix wraparounds of sk->sk_rmem_alloc.
- atm: fix infinite recursive call of clip_push().
- eth:
- stmmac: fix interrupt handling for level-triggered mode in DWC_XGMAC2
- rtsn: fix a null pointer dereference in rtsn_probe()"
* tag 'net-6.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (37 commits)
net/sched: sch_qfq: Fix null-deref in agg_dequeue
rxrpc: Fix oops due to non-existence of prealloc backlog struct
rxrpc: Fix bug due to prealloc collision
MAINTAINERS: remove myself as netronome maintainer
selftests/net: packetdrill: add tcp_ooo-before-and-after-accept.pkt
tcp: refine sk_rcvbuf increase for ooo packets
net/sched: Abort __tc_modify_qdisc if parent class does not exist
net: ethernet: ti: am65-cpsw-nuss: Fix skb size by accounting for skb_shared_info
net: thunderx: avoid direct MTU assignment after WRITE_ONCE()
selftests/tc-testing: Create test case for UAF scenario with DRR/NETEM/BLACKHOLE chain
atm: clip: Fix NULL pointer dereference in vcc_sendmsg()
atm: clip: Fix infinite recursive call of clip_push().
atm: clip: Fix memory leak of struct clip_vcc.
atm: clip: Fix potential null-ptr-deref in to_atmarpd().
net: phy: smsc: Fix link failure in forced mode with Auto-MDIX
net: phy: smsc: Force predictable MDI-X state on LAN87xx
net: phy: smsc: Fix Auto-MDIX configuration when disabled by strap
net: stmmac: Fix interrupt handling for level-triggered mode in DWC_XGMAC2
rxrpc: Fix over large frame size warning
net: airoha: Fix an error handling path in airoha_probe()
...
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Pull KVM fixes from Paolo Bonzini:
"Many patches, pretty much all of them small, that accumulated while I
was on vacation.
ARM:
- Remove the last leftovers of the ill-fated FPSIMD host state
mapping at EL2 stage-1
- Fix unexpected advertisement to the guest of unimplemented S2 base
granule sizes
- Gracefully fail initialising pKVM if the interrupt controller isn't
GICv3
- Also gracefully fail initialising pKVM if the carveout allocation
fails
- Fix the computing of the minimum MMIO range required for the host
on stage-2 fault
- Fix the generation of the GICv3 Maintenance Interrupt in nested
mode
x86:
- Reject SEV{-ES} intra-host migration if one or more vCPUs are
actively being created, so as not to create a non-SEV{-ES} vCPU in
an SEV{-ES} VM
- Use a pre-allocated, per-vCPU buffer for handling de-sparsification
of vCPU masks in Hyper-V hypercalls; fixes a "stack frame too
large" issue
- Allow out-of-range/invalid Xen event channel ports when configuring
IRQ routing, to avoid dictating a specific ioctl() ordering to
userspace
- Conditionally reschedule when setting memory attributes to avoid
soft lockups when userspace converts huge swaths of memory to/from
private
- Add back MWAIT as a required feature for the MONITOR/MWAIT selftest
- Add a missing field in struct sev_data_snp_launch_start that
resulted in the guest-visible workarounds field being filled at the
wrong offset
- Skip non-canonical address when processing Hyper-V PV TLB flushes
to avoid VM-Fail on INVVPID
- Advertise supported TDX TDVMCALLs to userspace
- Pass SetupEventNotifyInterrupt arguments to userspace
- Fix TSC frequency underflow"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: avoid underflow when scaling TSC frequency
KVM: arm64: Remove kvm_arch_vcpu_run_map_fp()
KVM: arm64: Fix handling of FEAT_GTG for unimplemented granule sizes
KVM: arm64: Don't free hyp pages with pKVM on GICv2
KVM: arm64: Fix error path in init_hyp_mode()
KVM: arm64: Adjust range correctly during host stage-2 faults
KVM: arm64: nv: Fix MI line level calculation in vgic_v3_nested_update_mi()
KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush
KVM: SVM: Add missing member in SNP_LAUNCH_START command structure
Documentation: KVM: Fix unexpected unindent warnings
KVM: selftests: Add back the missing check of MONITOR/MWAIT availability
KVM: Allow CPU to reschedule while setting per-page memory attributes
KVM: x86/xen: Allow 'out of range' event channel ports in IRQ routing table.
KVM: x86/hyper-v: Use preallocated per-vCPU buffer for de-sparsified vCPU masks
KVM: SVM: Initialize vmsa_pa in VMCB to INVALID_PAGE if VMSA page is NULL
KVM: SVM: Reject SEV{-ES} intra host migration if vCPU creation is in-flight
KVM: TDX: Report supported optional TDVMCALLs in TDX capabilities
KVM: TDX: Exit to userspace for SetupEventNotifyInterrupt
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Rosen Penev says:
====================
net: dsa: rzn1_a5psw: add COMPILE_TEST
Allows the various bots to test compilation. Also threw in a small devm
conversion for enabling clocks.
====================
Link: https://patch.msgid.link/20250708014144.2514-1-rosenp@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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|
The remove function has these in the wrong order. The switch should be
unregistered last. Simpler to use devm so that the right thing is done.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20250708014144.2514-3-rosenp@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
|
There's no architecture specific requirement for it to compile. Allows
the bots to test compilation properly.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250708014144.2514-2-rosenp@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
|
This patch provides a setsockopt method to let applications leverage to
adjust how many descs to be handled at most in one send syscall. It
mitigates the situation where the default value (32) that is too small
leads to higher frequency of triggering send syscall.
Considering the prosperity/complexity the applications have, there is no
absolutely ideal suggestion fitting all cases. So keep 32 as its default
value like before.
The patch does the following things:
- Add XDP_MAX_TX_SKB_BUDGET socket option.
- Set max_tx_budget to 32 by default in the initialization phase as a
per-socket granular control.
- Set the range of max_tx_budget as [32, xs->tx->nentries].
The idea behind this comes out of real workloads in production. We use a
user-level stack with xsk support to accelerate sending packets and
minimize triggering syscalls. When the packets are aggregated, it's not
hard to hit the upper bound (namely, 32). The moment user-space stack
fetches the -EAGAIN error number passed from sendto(), it will loop to try
again until all the expected descs from tx ring are sent out to the driver.
Enlarging the XDP_MAX_TX_SKB_BUDGET value contributes to less frequency of
sendto() and higher throughput/PPS.
Here is what I did in production, along with some numbers as follows:
For one application I saw lately, I suggested using 128 as max_tx_budget
because I saw two limitations without changing any default configuration:
1) XDP_MAX_TX_SKB_BUDGET, 2) socket sndbuf which is 212992 decided by
net.core.wmem_default. As to XDP_MAX_TX_SKB_BUDGET, the scenario behind
this was I counted how many descs are transmitted to the driver at one
time of sendto() based on [1] patch and then I calculated the
possibility of hitting the upper bound. Finally I chose 128 as a
suitable value because 1) it covers most of the cases, 2) a higher
number would not bring evident results. After twisting the parameters,
a stable improvement of around 4% for both PPS and throughput and less
resources consumption were found to be observed by strace -c -p xxx:
1) %time was decreased by 7.8%
2) error counter was decreased from 18367 to 572
[1]: https://lore.kernel.org/all/20250619093641.70700-1-kerneljasonxing@gmail.com/
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://patch.msgid.link/20250704160138.48677-1-kerneljasonxing@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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In reconfig we add the virtual monitor in 2 cases:
1. If we are resuming (it was deleted on suspend)
2. If it was added after an error but before the reconfig
(due to the last non-monitor interface removal).
In the second case, the removal of the non-monitor interface will succeed
but the addition of the virtual monitor will fail, so we add it in the
reconfig.
The problem is that we mislead the driver to think that this is an existing
interface that is getting re-added - while it is actually a completely new
interface from the drivers' point of view.
Some drivers act differently when a interface is re-added. For example, it
might not initialize things because they were already initialized.
Such drivers will - in this case - be left with a partialy initialized vif.
To fix it, add the virtual monitor after reconfig_complete, so the
driver will know that this is a completely new interface.
Fixes: 3c3e21e7443b ("mac80211: destroy virtual monitor interface across suspend")
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250709233451.648d39b041e8.I2e37b68375278987e303d6c00cc5f3d8334d2f96@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
|
|
This is currently not initialized for a virtual monitor, leading to a
NULL pointer dereference when - for example - iterating over all the
keys of all the vifs.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250709233400.8dcefe578497.I4c90a00ae3256520e063199d7f6f2580d5451acf@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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To prevent a potential crash in agg_dequeue (net/sched/sch_qfq.c)
when cl->qdisc->ops->peek(cl->qdisc) returns NULL, we check the return
value before using it, similar to the existing approach in sch_hfsc.c.
To avoid code duplication, the following changes are made:
1. Changed qdisc_warn_nonwc(include/net/pkt_sched.h) into a static
inline function.
2. Moved qdisc_peek_len from net/sched/sch_hfsc.c to
include/net/pkt_sched.h so that sch_qfq can reuse it.
3. Applied qdisc_peek_len in agg_dequeue to avoid crashing.
Signed-off-by: Xiang Mei <xmei5@asu.edu>
Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com>
Link: https://patch.msgid.link/20250705212143.3982664-1-xmei5@asu.edu
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Tariq Toukan says:
====================
net/mlx5: misc changes 2025-07-09
This series contains misc enhancements to the mlx5 driver.
====================
Link: https://patch.msgid.link/1752009387-13300-1-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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RQTs (Receive Queue Table) should redirect traffic to the channels' RQs
when they're active. Otherwise, redirect to the designated "drop RQ".
RQTs are created in "inactive" state, pointing to the "drop RQ".
In activate and de-activate flows, do not "deactivate" the rest of RQTs
(beyond the num of channels), as they are already inactive.
This cuts down unnecessary execution of FW commands (MODIFY_RQT), and
improves the latency of open/close channels or configuration change.
Perf:
NIC: Connect-X7.
Configuration: 1 combined channel, max num channels 248.
Measure time for "interface up + interface down".
Before: 0.313 sec
After: 0.057 sec (5.5x faster)
247 MODIFY_RQT commands saved in interface up.
247 MODIFY_RQT commands saved in interface down.
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/1752009387-13300-6-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Warn if write combining is not supported, as it can impact latency.
Add the warning message to be printed only when the driver actually
run the test and detect unsupported state, rather than when
inheriting parent's result for SFs.
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/1752009387-13300-5-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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mlx5e_tc_act_vlan_add_push_action() uses tail-recursion to walk through
a stack of VLAN devices.
There is no need for a complicated recursion with unnecessary stack
consumption and less obvious code flow, rewrite the function so that it
uses a do while loop instead.
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/1752009387-13300-4-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
This reduces the time the lock is held and reduces contention.
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/1752009387-13300-3-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
The VLAN insertion capability (`wqe_vlan_insert`) was never enabled on
all mlx5 devices. When VLAN TX offload is advertised but this
capability is not supported, the driver uses inline headers to insert
the VLAN tag.
To support this, the driver used to set the
`MLX5E_SQ_STATE_VLAN_NEED_L2_INLINE` bit to enforce L2 inline mode
when `wqe_vlan_insert` was not supported. Since the capability is
disabled on all devices, this logic was always active, and the SQ flag
has become redundant. L2 inline is enforced unconditionally for
VLAN-tagged packets.
The `skb_vlan_tag_present()` check in the else-if block of
`mlx5e_sq_xmit_wqe()` is never true by this point in the TX flow,
as the VLAN tag has already been inserted by the driver using inline
headers. As a result, this code is never executed.
Remove the redundant SQ state, dead VLAN insertion code block, and
related logic.
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/1752009387-13300-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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David Howells says:
====================
rxrpc: Miscellaneous fixes
Here are some miscellaneous fixes for rxrpc:
(1) Fix assertion failure due to preallocation collision.
(2) Fix oops due to prealloc backlog struct not yet having been allocated
if no service calls have yet been preallocated.
====================
Link: https://patch.msgid.link/20250708211506.2699012-1-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
If an AF_RXRPC service socket is opened and bound, but calls are
preallocated, then rxrpc_alloc_incoming_call() will oops because the
rxrpc_backlog struct doesn't get allocated until the first preallocation is
made.
Fix this by returning NULL from rxrpc_alloc_incoming_call() if there is no
backlog struct. This will cause the incoming call to be aborted.
Reported-by: Junvyyang, Tencent Zhuque Lab <zhuque@tencent.com>
Suggested-by: Junvyyang, Tencent Zhuque Lab <zhuque@tencent.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: LePremierHomme <kwqcheii@proton.me>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Willy Tarreau <w@1wt.eu>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
Link: https://patch.msgid.link/20250708211506.2699012-3-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
When userspace is using AF_RXRPC to provide a server, it has to preallocate
incoming calls and assign to them call IDs that will be used to thread
related recvmsg() and sendmsg() together. The preallocated call IDs will
automatically be attached to calls as they come in until the pool is empty.
To the kernel, the call IDs are just arbitrary numbers, but userspace can
use the call ID to hold a pointer to prepared structs. In any case, the
user isn't permitted to create two calls with the same call ID (call IDs
become available again when the call ends) and EBADSLT should result from
sendmsg() if an attempt is made to preallocate a call with an in-use call
ID.
However, the cleanup in the error handling will trigger both assertions in
rxrpc_cleanup_call() because the call isn't marked complete and isn't
marked as having been released.
Fix this by setting the call state in rxrpc_service_prealloc_one() and then
marking it as being released before calling the cleanup function.
Fixes: 00e907127e6f ("rxrpc: Preallocate peers, conns and calls for incoming service requests")
Reported-by: Junvyyang, Tencent Zhuque Lab <zhuque@tencent.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: LePremierHomme <kwqcheii@proton.me>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
Link: https://patch.msgid.link/20250708211506.2699012-2-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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|
In test_stream_transport_change_client(), the client sends CONTROL_CONTINUE
on each iteration, even when connect() is unsuccessful. This causes a flood
of control messages in the server that hangs around for more than 10
seconds after the test finishes, triggering several timeouts and causing
subsequent tests to fail. This was discovered in testing a newly proposed
test that failed in this way on the client side:
...
33 - SOCK_STREAM transport change null-ptr-deref...ok
34 - SOCK_STREAM ioctl(SIOCINQ) functionality...recv timed out
The CONTROL_CONTINUE message is used only to tell to the server to call
accept() to consume successful connections, so that subsequent connect()
will not fail for finding the queue full.
Send CONTROL_CONTINUE message only when the connect() has succeeded, or
found the queue full. Note that the second connect() can also succeed if
the first one was interrupted after sending the request.
Fixes: 3a764d93385c ("vsock/test: Add test for null ptr deref when transport changes")
Cc: leonardi@redhat.com
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Luigi Leonardi <leonardi@redhat.com>
Link: https://patch.msgid.link/20250708111701.129585-1-sgarzare@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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|
says:
====================
net: phy: bcm54811: PHY initialization
Proper bcm54811 PHY driver initialization for MII-Lite.
The bcm54811 PHY in MLP package must be setup for MII-Lite interface
mode by software. Normally, the PHY to MAC interface is selected in
hardware by setting the bootstrap pins of the PHY. However, MII and
MII-Lite share the same hardware setup and must be distinguished by
software, setting appropriate bit in a configuration register.
The MII-Lite interface mode is non-standard one, defined by Broadcom
for some of their PHYs. The MII-Lite lightness consist in omitting
RXER, TXER, CRS and COL signals of the standard MII interface.
Absence of COL them makes half-duplex links modes impossible but
does not interfere with Broadcom's BroadR-Reach link modes, because
they are full-duplex only.
To do it in a clean way, MII-Lite must be introduced first, including
its limitation to link modes (no half-duplex), because it is a
prerequisite for the patch #3 of this series. The patch #4 does not
depend on MII-Lite directly but both #3 and #4 are necessary for
bcm54811 to work properly without additional configuration steps to be
done - for example in the bootloader, before the kernel starts.
PATCH 1 - Add MII-Lite PHY interface mode as defined by Broadcom for
their two-wire PHYs. It can be used with most Ethernet controllers
under certain limitations (no half-duplex link modes etc.).
PATCH 2 - Add MII-Lite PHY interface type
PATCH 3 - Activation of MII-Lite interface mode on Broadcom bcm5481x
PHYs
PATCH 4 - Initialize the BCM54811 PHY properly so that it conforms
to the datasheet regarding a reserved bit in the LRE Control
register, which must be written to zero after every device reset.
Ignore the LDS capability bit in LRE Status register on bcm54811.
====================
Link: https://patch.msgid.link/20250708090140.61355-1-kamilh@axis.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Reset the bit 12 in PHY's LRE Control register upon initialization.
According to the datasheet, this bit must be written to zero after
every device reset.
Signed-off-by: Kamil Horák - 2N <kamilh@axis.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20250708090140.61355-5-kamilh@axis.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Broadcom PHYs featuring the BroadR-Reach two-wire link mode are usually
capable to operate in simplified MII mode, without TXER, RXER, CRS and
COL signals as defined for the MII. The absence of COL signal makes
half-duplex link modes impossible, however, the BroadR-Reach modes are
all full-duplex only.
Depending on the IC encapsulation, there exist MII-Lite-only PHYs such
as bcm54811 in MLP. The PHY itself is hardware-strapped to select among
multiple RGMII and MII-Lite modes, but the MII-Lite mode must be also
activated by software.
Add MII-Lite activation for bcm5481x PHYs.
Signed-off-by: Kamil Horák - 2N <kamilh@axis.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/20250708090140.61355-4-kamilh@axis.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Some Broadcom PHYs are capable to operate in simplified MII mode,
without TXER, RXER, CRS and COL signals as defined for the MII.
The MII-Lite mode can be used on most Ethernet controllers with full
MII interface by just leaving the input signals (RXER, CRS, COL)
inactive. The absence of COL signal makes half-duplex link modes
impossible but does not interfere with BroadR-Reach link modes on
Broadcom PHYs, because they are all full-duplex only.
Add new interface type "mii-lite" to phy-connection-type enum.
Signed-off-by: Kamil Horák - 2N <kamilh@axis.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250708090140.61355-3-kamilh@axis.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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