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RTNL needs to be acquired before state_lock.
Fixes: fdce06bda7e5 ("net/mlx5e: Acquire RTNL lock before RQs/SQs activation/deactivation")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20250423083611.324567-5-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Previously the offload of the rule with header rewrite and mirror to
both internal and external destinations is skipped if the encap entry
is not valid. But it shouldn't because driver will try to offload it
again if neighbor is updated and encap entry is valid, to replace the
old FTE added for slow path. But the extra split attr doesn't exist at
that time as the process is skipped, driver then fails to offload it.
To fix this issue, remove the checking and continue the attr process
if encap entry is invalid.
Fixes: b11bde56246e ("net/mlx5e: TC, Offload rewrite and mirror to both internal and external dests")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20250423083611.324567-4-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Initialize the source MAC address when creating the default GID entry.
Since this entry is used only for loopback traffic, it only needs to
be a unicast address. A zeroed-out MAC address is sufficient for this
purpose.
Without this fix, random bits would be assigned as the source address.
If these bits formed a multicast address, the firmware would return an
error, preventing the user from switching to switchdev mode:
Error: mlx5_core: Failed setting eswitch to offloads.
kernel answers: Invalid argument
Fixes: 80f09dfc237f ("net/mlx5: Eswitch, enable RoCE loopback traffic")
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Link: https://patch.msgid.link/20250423083611.324567-3-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Symbolic (e.g. "vxlan") and custom (e.g. "tunnel_header_0") tunnels
cannot be combined, but the match params interface does not have fields
for matching on vxlan gbp. To match vxlan bgp, the tc_tun layer uses
tunnel_header_0.
Allow matching on both VNI and GBP by matching the VNI with a custom
tunnel header instead of the symbolic field name.
Matching solely on the VNI continues to use the symbolic field name.
Fixes: 74a778b4a63f ("net/mlx5: HWS, added definers handling")
Signed-off-by: Vlad Dogaru <vdogaru@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Link: https://patch.msgid.link/20250423083611.324567-2-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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With commit 51a4df60db5c2 ("net: ethernet: mtk_eth_soc: convert caps in
mtk_soc_data struct to u64") the capabilities bitfield was converted to
a 64-bit value, but a cap_bit in struct mtk_eth_muxc which is used to
store a full bitfield (rather than the bit number, as the name would
suggest) still holds only a 32-bit value.
Change the type of cap_bit to u64 in order to avoid truncating the
bitfield which results in path selection to not work with capabilities
above the 32-bit limit.
The values currently stored in the cap_bit field are
MTK_ETH_MUX_GDM1_TO_GMAC1_ESW:
BIT_ULL(18) | BIT_ULL(5)
MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY:
BIT_ULL(19) | BIT_ULL(5) | BIT_ULL(6)
MTK_ETH_MUX_U3_GMAC2_TO_QPHY:
BIT_ULL(20) | BIT_ULL(5) | BIT_ULL(6)
MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII:
BIT_ULL(20) | BIT_ULL(5) | BIT_ULL(7)
MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII:
BIT_ULL(21) | BIT_ULL(5)
While all those values are currently still within 32-bit boundaries,
the addition of new capabilities of MT7988 as well as future SoC's
like MT7987 will exceed them. Also, the use of a 32-bit 'int' type to
store the result of a BIT_ULL(...) is misleading.
Signed-off-by: Bo-Cun Chen <bc-bocun.chen@mediatek.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/ded98b0d716c3203017a7a92151516ec2bf1abee.1745369249.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The asp-v3.0 is a major HW revision that reduced the number of
channels and filters. The goal was to save cost by reducing the
feature set.
Changes for asp-v3.0
- Number of network filters were reduced.
- Number of channels were reduced.
- EDPKT stats were removed.
- Fix a bug with csum offload.
Signed-off-by: Justin Chen <justin.chen@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20250422233645.1931036-8-justin.chen@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The SoC that supported asp-v2.0 never saw the light of day. asp-v2.0 has
quirks that makes the logic overly complicated. For example, asp-v2.0 is
the only revision that has a different wake up IRQ hook up. Remove asp-v2.0
support to make supporting future HW revisions cleaner.
Signed-off-by: Justin Chen <justin.chen@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20250422233645.1931036-4-justin.chen@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cross-merge networking fixes after downstream PR (net-6.15-rc4).
This pull includes wireless and a fix to vxlan which isn't
in Linus's tree just yet. The latter creates with a silent conflict
/ build breakage, so merging it now to avoid causing problems.
drivers/net/vxlan/vxlan_vnifilter.c
094adad91310 ("vxlan: Use a single lock to protect the FDB table")
087a9eb9e597 ("vxlan: vnifilter: Fix unlocked deletion of default FDB entry")
https://lore.kernel.org/20250423145131.513029-1-idosch@nvidia.com
No "normal" conflicts, or adjacent changes.
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:
"No fixes from any subtree.
Current release - regressions:
- net: fix the missing unlock for detached devices
Previous releases - regressions:
- sched: fix UAF vulnerability in HFSC qdisc
- lwtunnel: disable BHs when required
- mptcp: pm: defer freeing of MPTCP userspace path manager entries
- tipc: fix NULL pointer dereference in tipc_mon_reinit_self()
- eth: virtio-net: disable delayed refill when pausing rx
Previous releases - always broken:
- phylink: fix suspend/resume with WoL enabled and link down
- eth:
- mlx5: fix null-ptr-deref in mlx5_create_{inner_,}ttc_table()
- xen-netfront: handle NULL returned by xdp_convert_buff_to_frame()
- enetc: fix frame corruption on bpf_xdp_adjust_head/tail() and XDP_PASS
- stmmac: fix dwmac1000 ptp timestamp status offset
- pds_core: prevent possible adminq overflow/stuck condition
Misc:
- a bunch of MAINTAINERS updates"
* tag 'net-6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (32 commits)
net: stmmac: fix multiplication overflow when reading timestamp
net: stmmac: fix dwmac1000 ptp timestamp status offset
net: dp83822: Fix OF_MDIO config check
pds_core: make wait_context part of q_info
pds_core: Remove unnecessary check in pds_client_adminq_cmd()
pds_core: handle unsupported PDS_CORE_CMD_FW_CONTROL result
pds_core: Prevent possible adminq overflow/stuck condition
net: dsa: mt7530: sync driver-specific behavior of MT7531 variants
selftests/tc-testing: Add test for HFSC queue emptying during peek operation
net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too
net_sched: hfsc: Fix a UAF vulnerability in class handling
selftests: mptcp: diag: use mptcp_lib_get_info_value
mptcp: pm: Defer freeing of MPTCP userspace path manager entries
net: ethernet: mtk_eth_soc: net: revise NETSYSv3 hardware configuration
tipc: fix NULL pointer dereference in tipc_mon_reinit_self()
virtio-net: disable delayed refill when pausing rx
net: phy: leds: fix memory leak
net: phylink: mac_link_(up|down)() clarifications
net: phylink: fix suspend/resume with WoL enabled and link down
net: lwtunnel: disable BHs when required
...
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The current way of reading a timestamp snapshot in stmmac can lead to
integer overflow, as the computation is done on 32 bits. The issue has
been observed on a dwmac-socfpga platform returning chaotic timestamp
values due to this overflow. The corresponding multiplication is done
with a MUL instruction, which returns 32 bit values. Explicitly casting
the value to 64 bits replaced the MUL with a UMLAL, which computes and
returns the result on 64 bits, and so returns correctly the timestamps.
Prevent this overflow by explicitly casting the intermediate value to
u64 to make sure that the whole computation is made on u64. While at it,
apply the same cast on the other dwmac variant (GMAC4) method for
snapshot retrieval.
Fixes: 477c3e1f6363 ("net: stmmac: Introduce dwmac1000 timestamping operations")
Signed-off-by: Alexis Lothoré <alexis.lothore@bootlin.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20250423-stmmac_ts-v2-2-e2cf2bbd61b1@bootlin.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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When a PTP interrupt occurs, the driver accesses the wrong offset to
learn about the number of available snapshots in the FIFO for dwmac1000:
it should be accessing bits 29..25, while it is currently reading bits
19..16 (those are bits about the auxiliary triggers which have generated
the timestamps). As a consequence, it does not compute correctly the
number of available snapshots, and so possibly do not generate the
corresponding clock events if the bogus value ends up being 0.
Fix clock events generation by reading the correct bits in the timestamp
register for dwmac1000.
Fixes: 477c3e1f6363 ("net: stmmac: Introduce dwmac1000 timestamping operations")
Signed-off-by: Alexis Lothoré <alexis.lothore@bootlin.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20250423-stmmac_ts-v2-1-e2cf2bbd61b1@bootlin.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Make the wait_context a full part of the q_info struct rather
than a stack variable that goes away after pdsc_adminq_post()
is done so that the context is still available after the wait
loop has given up.
There was a case where a slow development firmware caused
the adminq request to time out, but then later the FW finally
finished the request and sent the interrupt. The handler tried
to complete_all() the completion context that had been created
on the stack in pdsc_adminq_post() but no longer existed.
This caused bad pointer usage, kernel crashes, and much wailing
and gnashing of teeth.
Fixes: 01ba61b55b20 ("pds_core: Add adminq processing and commands")
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250421174606.3892-5-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When the pds_core driver was first created there were some race
conditions around using the adminq, especially for client drivers.
To reduce the possibility of a race condition there's a check
against pf->state in pds_client_adminq_cmd(). This is problematic
for a couple of reasons:
1. The PDSC_S_INITING_DRIVER bit is set during probe, but not
cleared until after everything in probe is complete, which
includes creating the auxiliary devices. For pds_fwctl this
means it can't make any adminq commands until after pds_core's
probe is complete even though the adminq is fully up by the
time pds_fwctl's auxiliary device is created.
2. The race conditions around using the adminq have been fixed
and this path is already protected against client drivers
calling pds_client_adminq_cmd() if the adminq isn't ready,
i.e. see pdsc_adminq_post() -> pdsc_adminq_inc_if_up().
Fix this by removing the pf->state check in pds_client_adminq_cmd()
because invalid accesses to pds_core's adminq is already handled by
pdsc_adminq_post()->pdsc_adminq_inc_if_up().
Fixes: 10659034c622 ("pds_core: add the aux client API")
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250421174606.3892-4-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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If the FW doesn't support the PDS_CORE_CMD_FW_CONTROL command
the driver might at the least print garbage and at the worst
crash when the user runs the "devlink dev info" devlink command.
This happens because the stack variable fw_list is not 0
initialized which results in fw_list.num_fw_slots being a
garbage value from the stack. Then the driver tries to access
fw_list.fw_names[i] with i >= ARRAY_SIZE and runs off the end
of the array.
Fix this by initializing the fw_list and by not failing
completely if the devcmd fails because other useful information
is printed via devlink dev info even if the devcmd fails.
Fixes: 45d76f492938 ("pds_core: set up device and adminq")
Signed-off-by: Brett Creeley <brett.creeley@amd.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250421174606.3892-3-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The pds_core's adminq is protected by the adminq_lock, which prevents
more than 1 command to be posted onto it at any one time. This makes it
so the client drivers cannot simultaneously post adminq commands.
However, the completions happen in a different context, which means
multiple adminq commands can be posted sequentially and all waiting
on completion.
On the FW side, the backing adminq request queue is only 16 entries
long and the retry mechanism and/or overflow/stuck prevention is
lacking. This can cause the adminq to get stuck, so commands are no
longer processed and completions are no longer sent by the FW.
As an initial fix, prevent more than 16 outstanding adminq commands so
there's no way to cause the adminq from getting stuck. This works
because the backing adminq request queue will never have more than 16
pending adminq commands, so it will never overflow. This is done by
reducing the adminq depth to 16.
Fixes: 45d76f492938 ("pds_core: set up device and adminq")
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250421174606.3892-2-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Signal clearly to the user, via an error, that mixing IPv4 and IPv6
rules in the same matcher is not supported. Previously such cases
silently failed by adding a rule that did not work correctly.
Rules can specify an IP version by one of two fields: IP version or
ethertype. At matcher creation, store whether the template matches on
any of these two fields. If yes, inspect each rule for its corresponding
match value and store the IP version inside the matcher to guard against
inconsistencies with subsequent rules.
Furthermore, also check rules for internal consistency, i.e. verify that
the ethertype and IP version match values do not contradict each other.
The logic applies to inner and outer headers independently, to account
for tunneling.
Rules that do not match on IP addresses are not affected.
Signed-off-by: Vlad Dogaru <vdogaru@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20250422092540.182091-4-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Replicate some sanity checks that firmware does, since hardware steering
does not go through firmware.
When creating a definer, disallow matching on IP addresses without also
matching on IP version. The latter can be satisfied by matching either
on the version field in the IP header, or on the ethertype field.
Also refuse to match IPv4 IHL alongside IPv6.
Signed-off-by: Vlad Dogaru <vdogaru@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20250422092540.182091-3-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Unify the check for IP version when creating a definer. A given matcher
is deemed to match on IPv6 if any of the higher order (>31) bits of
source or destination address mask are set.
A single packet cannot mix IP versions between source and destination
addresses, so it makes no sense that they would be decided on
independently.
Signed-off-by: Vlad Dogaru <vdogaru@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20250422092540.182091-2-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The current API, otx2_xdp_sq_append_pkt, verifies the number of available
descriptors before sending packets to the hardware.
However, for AF_XDP, this check is unnecessary because the batch value
is already determined based on the free descriptors.
This patch introduces a new API, "otx2_xsk_sq_append_pkt" to address this.
Remove the logic for releasing the TX buffers, as it is implicitly handled
by xsk_tx_peek_release_desc_batch
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Link: https://patch.msgid.link/20250420032350.4047706-1-hkelam@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:
====================
igc: Add support for Frame Preemption
Faizal Rahim says:
Introduce support for the FPE feature in the IGC driver.
The patches aligns with the upstream FPE API:
https://patchwork.kernel.org/project/netdevbpf/cover/20230220122343.1156614-1-vladimir.oltean@nxp.com/
https://patchwork.kernel.org/project/netdevbpf/cover/20230119122705.73054-1-vladimir.oltean@nxp.com/
It builds upon earlier work:
https://patchwork.kernel.org/project/netdevbpf/cover/20220520011538.1098888-1-vinicius.gomes@intel.com/
The patch series adds the following functionalities to the IGC driver:
a) Configure FPE using `ethtool --set-mm`.
b) Display FPE settings via `ethtool --show-mm`.
c) View FPE statistics using `ethtool --include-statistics --show-mm'.
e) Block setting preemptible tc in taprio since it is not supported yet.
Existing code already blocks it in mqprio.
Tested:
Enabled CONFIG_PROVE_LOCKING, CONFIG_DEBUG_ATOMIC_SLEEP, CONFIG_DMA_API_DEBUG, and CONFIG_KASAN
1) selftests
2) netdev down/up cycles
3) suspend/resume cycles
4) fpe verification
No bugs or unusual dmesg logs were observed.
Ran 1), 2) and 3) with and without the patch series, compared dmesg and selftest logs - no differences found.
* '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
igc: add support to get frame preemption statistics via ethtool
igc: add support to get MAC Merge data via ethtool
igc: block setting preemptible traffic class in taprio
igc: add support to set tx-min-frag-size
igc: add support for frame preemption verification
igc: set the RX packet buffer size for TSN mode
igc: use FIELD_PREP and GENMASK for existing RX packet buffer size
igc: optimize TX packet buffer utilization for TSN mode
igc: use FIELD_PREP and GENMASK for existing TX packet buffer size
igc: rename I225_RXPBSIZE_DEFAULT and I225_TXPBSIZE_DEFAULT
igc: rename xdp_get_tx_ring() for non-xdp usage
net: ethtool: mm: reset verification status when link is down
net: ethtool: mm: extract stmmac verification logic into common library
net: stmmac: move frag_size handling out of spin_lock
====================
Link: https://patch.msgid.link/20250418163822.3519810-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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EN7581 ethernet SoC supports 4 programmable IRQ lines for Tx and Rx
interrupts. Enable multiple IRQ lines support. Map Rx/Tx queues to the
available IRQ lines using the default scheme used in the vendor SDK:
- IRQ0: rx queues [0-4],[7-9],15
- IRQ1: rx queues [21-30]
- IRQ2: rx queues 5
- IRQ3: rx queues 6
Tx queues interrupts are managed by IRQ0.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250418-airoha-eth-multi-irq-v1-2-1ab0083ca3c1@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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EN7581 ethernet SoC supports 4 programmable IRQ lines each one composed
by 4 IRQ configuration registers. Add airoha_irq_bank struct as a
container for independent IRQ lines info (e.g. IRQ number, enabled source
interrupts, ecc). This is a preliminary patch to support multiple IRQ lines
in airoha_eth driver.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250418-airoha-eth-multi-irq-v1-1-1ab0083ca3c1@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Handling of both chip versions is the same, only difference is
the firmware. So we can merge handling of both chip versions.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/ae866b71-c904-434e-befb-848c831e33ff@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Handling of both chip versions is the same, only difference is
the firmware. So we can merge handling of both chip versions.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/0baad123-c679-4154-923f-fdc12783e900@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Handling of both chip versions is the same, only difference is
the firmware. So we can merge handling of both chip versions.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/97d7ae79-d021-4b6b-b424-89e5e305b029@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Thierry states that there are prerequists for Tegra's calibration
that should be met before starting calibration - both the RGMII and
MDIO interfaces should be idle.
This commit adds the necessary MII bus locking to ensure that the MDIO
interface is idle during calibration.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://patch.msgid.link/E1u7EYR-001ZAS-Cr@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The CONFIG_DEFAULT_HUNG_TASK_TIMEOUT setting is only available when the
hung task detection is enabled, otherwise the code now produces a build
failure:
drivers/net/ethernet/broadcom/bnxt/bnxt.c:10188:21: error: use of undeclared identifier 'CONFIG_DEFAULT_HUNG_TASK_TIMEOUT'
10188 | max_tmo_secs > CONFIG_DEFAULT_HUNG_TASK_TIMEOUT) {
Enclose this warning logic in an #ifdef to ensure this builds.
Fixes: 0fcad44a86bd ("bnxt_en: Change FW message timeout warning")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250423162827.2189658-1-arnd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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It turns out that there are no platforms that have PCI but don't have an
MMU, so adding a Kconfig dependency on CONFIG_PCI simplifies build testing
kernels for those platforms a lot, and avoids a lot of inadvertent build
regressions.
Add a dependency for CONFIG_PCI and remove all the ones for PCI specific
device drivers that are currently marked not having it.
There are a few platforms that have an optional MMU, but they usually
cannot have PCI at all. The one exception is Coldfire MCF54xx, but this is
mainly for historic reasons, and anyone using those chips should really use
the MMU these days.
Link: https://lore.kernel.org/lkml/a41f1b20-a76c-43d8-8c36-f12744327a54@app.fastmail.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> # SCSI
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patch.msgid.link/20250423202215.3315550-1-arnd@kernel.org
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Commit 03df156dd3a6 ("xdp: double protect netdev->xdp_flags with
netdev->lock") introduces the netdev lock to xdp_set_features_flag().
The change includes a _locked version of the method, as it is possible
for a driver to have already acquired the netdev lock before calling
this helper. However, the same applies to
xdp_features_(set|clear)_redirect_flags(), which ends up calling the
unlocked version of xdp_set_features_flags() leading to deadlocks in
GVE, which grabs the netdev lock as part of its suspend, reset, and
shutdown processes:
[ 833.265543] WARNING: possible recursive locking detected
[ 833.270949] 6.15.0-rc1 #6 Tainted: G E
[ 833.276271] --------------------------------------------
[ 833.281681] systemd-shutdow/1 is trying to acquire lock:
[ 833.287090] ffff949d2b148c68 (&dev->lock){+.+.}-{4:4}, at: xdp_set_features_flag+0x29/0x90
[ 833.295470]
[ 833.295470] but task is already holding lock:
[ 833.301400] ffff949d2b148c68 (&dev->lock){+.+.}-{4:4}, at: gve_shutdown+0x44/0x90 [gve]
[ 833.309508]
[ 833.309508] other info that might help us debug this:
[ 833.316130] Possible unsafe locking scenario:
[ 833.316130]
[ 833.322142] CPU0
[ 833.324681] ----
[ 833.327220] lock(&dev->lock);
[ 833.330455] lock(&dev->lock);
[ 833.333689]
[ 833.333689] *** DEADLOCK ***
[ 833.333689]
[ 833.339701] May be due to missing lock nesting notation
[ 833.339701]
[ 833.346582] 5 locks held by systemd-shutdow/1:
[ 833.351205] #0: ffffffffa9c89130 (system_transition_mutex){+.+.}-{4:4}, at: __se_sys_reboot+0xe6/0x210
[ 833.360695] #1: ffff93b399e5c1b8 (&dev->mutex){....}-{4:4}, at: device_shutdown+0xb4/0x1f0
[ 833.369144] #2: ffff949d19a471b8 (&dev->mutex){....}-{4:4}, at: device_shutdown+0xc2/0x1f0
[ 833.377603] #3: ffffffffa9eca050 (rtnl_mutex){+.+.}-{4:4}, at: gve_shutdown+0x33/0x90 [gve]
[ 833.386138] #4: ffff949d2b148c68 (&dev->lock){+.+.}-{4:4}, at: gve_shutdown+0x44/0x90 [gve]
Introduce xdp_features_(set|clear)_redirect_target_locked() versions
which assume that the netdev lock has already been acquired before
setting the XDP feature flag and update GVE to use the locked version.
Fixes: 03df156dd3a6 ("xdp: double protect netdev->xdp_flags with netdev->lock")
Tested-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Harshitha Ramamurthy <hramamurthy@google.com>
Signed-off-by: Joshua Washington <joshwash@google.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20250422011643.3509287-1-joshwash@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Implement ndo_features_check to restrict Tx checksum offload flags, since
there are some inner layer length and protocols unsupported.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Link: https://patch.msgid.link/20250421022956.508018-3-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Tunnel types VXLAN/VXLAN_GPE/GENEVE are supported for txgbe devices. The
hardware supports to set only one port for each tunnel type.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://patch.msgid.link/20250421022956.508018-2-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Convert visconti to use the set_clk_tx_rate() method. By doing so,
the GMAC control register will already have been updated (unlike with
the fix_mac_speed() method) so this code can be removed while porting
to the set_clk_tx_rate() method.
There is also no need for the spinlock, and has never been - neither
fix_mac_speed() nor set_clk_tx_rate() can be called by more than one
thread at a time, so the lock does nothing useful.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1u5SiQ-001I0B-OQ@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Change hardware configuration for the NETSYSv3.
- Enable PSE dummy page mechanism for the GDM1/2/3
- Enable PSE drop mechanism when the WDMA Rx ring full
- Enable PSE no-drop mechanism for packets from the WDMA Tx
- Correct PSE free drop threshold
- Correct PSE CDMA high threshold
Fixes: 1953f134a1a8b ("net: ethernet: mtk_eth_soc: add NETSYS_V3 version support")
Signed-off-by: Bo-Cun Chen <bc-bocun.chen@mediatek.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/b71f8fd9d4bb69c646c4d558f9331dd965068606.1744907886.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add the DWMAC glue layer for the GBETH IP found in the Renesas RZ/V2H(P)
SoC.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patch.msgid.link/20250417084015.74154-4-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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GCC 15's new -Wunterminated-string-initialization notices that the 32
character "flash_cookie" (which is not used as a C-String)
needs to be marked as "nonstring":
drivers/net/ethernet/emulex/benet/be_cmds.c:2618:51: warning: initializer-string for array of 'char' truncates NUL terminator but destination lacks 'nonstring' attribute (17 chars into 16 available) [-Wunterminated-string-initialization]
2618 | static char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
| ^~~~~~~~~~~~~~~~~~
Add this annotation, avoid using a multidimensional array, but keep the
string split (with a comment about why). Additionally mark it const
and annotate the "cookie" member that is being memcmp()ed against as
nonstring too.
Signed-off-by: Kees Cook <kees@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250416221028.work.967-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Use pci_prepare_to_sleep() like PCI core does in pci_pm_suspend_noirq.
This aligns setting a low-power mode during shutdown with the handling
of the transition to system suspend. Also the transition to runtime
suspend uses pci_target_state() instead of setting D3hot unconditionally.
Note: pci_prepare_to_sleep() uses device_may_wakeup() to check whether
device may generate wakeup events. So we don't lose anything by
not passing tp->saved_wolopts any longer.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/f573fdbd-ba6d-41c1-b68f-311d3c88db2c@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The last use of rvu_npc_enable_bcast_entry() was removed in 2021 by
commit 967db3529eca ("octeontx2-af: add support for multicast/promisc
packet replication feature")
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250420225810.171852-1-linux@treblig.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add support for ndo_setup_tc to enable CBS offload functionality as
part of traffic control configuration for network devices, where CBS
is applied from the CPU to the switch. More specifically, CBS is
applied at the GMAC in the topmost architecture diagram.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250416115757.28156-1-justinlai0215@realtek.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Make the CMIS module type's page 17 channel data available for
ethtool to request. As done previously, carve space for this
data from the port_info reserved space.
In the future, if additional pages are needed, a new firmware
AdminQ command will be added for accessing random pages.
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250415231317.40616-4-shannon.nelson@amd.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add support for the newer get_module_eeprom_by_page interface.
Only the upper half of the 256 byte page is available for
reading, and the firmware puts the two sections into the
extended sprom buffer, so a union is used over the extended
sprom buffer to make clear which page is to be accessed.
With get_module_eeprom_by_page implemented there is no need
for the older get_module_info or git_module_eeprom interfaces,
so remove them.
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250415231317.40616-3-shannon.nelson@amd.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Some QSFP modules have more eeprom to be read by ethtool than
the initial high and low page 0 that is currently available
in the DSC's ionic sprom[] buffer. Since the current sprom[]
is baked into the middle of an existing API struct, to make
the high end of page 1 and page 2 available a block is carved
from a reserved space of the existing port_info struct and the
ionic_get_module_eeprom() service is taught how to get there.
Newer firmware writes the additional QSFP page info here,
yet this remains backward compatible because older firmware
sets this space to all 0 and older ionic drivers do not use
the reserved space.
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250415231317.40616-2-shannon.nelson@amd.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Vlatko Markovikj reported that XDP programs attached to ENETC do not
work well if they use bpf_xdp_adjust_head() or bpf_xdp_adjust_tail(),
combined with the XDP_PASS verdict. A typical use case is to add or
remove a VLAN tag.
The resulting sk_buff passed to the stack is corrupted, because the
algorithm used by the driver for XDP_PASS is to unwind the current
buffer pointer in the RX ring and to re-process the current frame with
enetc_build_skb() as if XDP hadn't run. That is incorrect because XDP
may have modified the geometry of the buffer, which we then are
completely unaware of. We are looking at a modified buffer with the
original geometry.
The initial reaction, both from me and from Vlatko, was to shop around
the kernel for code to steal that would calculate a delta between the
old and the new XDP buffer geometry, and apply that to the sk_buff too.
We noticed that veth and generic xdp have such code.
The headroom adjustment is pretty uncontroversial, but what turned out
severely problematic is the tailroom.
veth has this snippet:
__skb_put(skb, off); /* positive on grow, negative on shrink */
which on first sight looks decent enough, except __skb_put() takes an
"unsigned int" for the second argument, and the arithmetic seems to only
work correctly by coincidence. Second issue, __skb_put() contains a
SKB_LINEAR_ASSERT(). It's not a great pattern to make more widespread.
The skb may still be nonlinear at that point - it only becomes linear
later when resetting skb->data_len to zero.
To avoid the above, bpf_prog_run_generic_xdp() does this instead:
skb_set_tail_pointer(skb, xdp->data_end - xdp->data);
skb->len += off; /* positive on grow, negative on shrink */
which is more open-coded, uses lower-level functions and is in general a
bit too much to spread around in driver code.
Then there is the snippet:
if (xdp_buff_has_frags(xdp))
skb->data_len = skb_shinfo(skb)->xdp_frags_size;
else
skb->data_len = 0;
One would have expected __pskb_trim() to be the function of choice for
this task. But it's not used in veth/xdpgeneric because the extraneous
fragments were _already_ freed by bpf_xdp_adjust_tail() ->
bpf_xdp_frags_shrink_tail() -> ... -> __xdp_return() - the backing
memory for the skb frags and the xdp frags is the same, but they don't
keep individual references.
In fact, that is the biggest reason why this snippet cannot be reused
as-is, because ENETC temporarily constructs an skb with the original len
and the original number of frags. Because the extraneous frags are
already freed by bpf_xdp_adjust_tail() and returned to the page
allocator, it means the entire approach of using enetc_build_skb() is
questionable for XDP_PASS. To avoid that, one would need to elevate the
page refcount of all frags before calling bpf_prog_run_xdp() and drop it
after XDP_PASS.
There are other things that are missing in ENETC's handling of XDP_PASS,
like for example updating skb_shinfo(skb)->meta_len.
These are all handled correctly and cleanly in commit 539c1fba1ac7
("xdp: add generic xdp_build_skb_from_buff()"), added to net-next in
Dec 2024, and in addition might even be quicker that way. I have a very
strong preference towards backporting that commit for "stable", and that
is what is used to fix the handling bugs. It is way too messy to go
this deep into the guts of an sk_buff from the code of a device driver.
Fixes: d1b15102dd16 ("net: enetc: add support for XDP_DROP and XDP_PASS")
Reported-by: Vlatko Markovikj <vlatko.markovikj@etas.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20250417120005.3288549-4-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This small snippet of code ensures that we do something with the array
of RX software buffer descriptor elements after passing the skb to the
stack. In this case, we see if the other half of the page is reusable,
and if so, we "turn around" the buffers, making them directly usable by
enetc_refill_rx_ring() without going to enetc_new_page().
We will need to perform this kind of buffer flipping from a new code
path, i.e. from XDP_PASS. Currently, enetc_build_skb() does it there
buffer by buffer, but in a subsequent change we will stop using
enetc_build_skb() for XDP_PASS.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20250417120005.3288549-3-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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At the time when bpf_xdp_adjust_tail() gained support for non-linear
buffers, ENETC was already generating this kind of geometry on RX, due
to its use of 2K half page buffers. Frames larger than 1472 bytes
(without FCS) are stored as multi-buffer, presenting a need for multi
buffer support to work properly even in standard MTU circumstances.
Allow bpf_xdp_frags_increase_tail() to know the allocation size of paged
data, so it can safely permit growing the tailroom of the buffer from
XDP programs.
Fixes: bf25146a5595 ("bpf: add frags support to the bpf_xdp_adjust_tail() API")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20250417120005.3288549-2-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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BNXT_ROCE_ULP and BNXT_MAX_ULP are no longer used. Remove them to
clean up the code.
Reviewed-by: Shruti Parab <shruti.parab@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250417172448.1206107-5-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The "ref_count" field in struct bnxt_ulp is unused after
commit a43c26fa2e6c ("RDMA/bnxt_re: Remove the sriov config callback").
So we can just remove it now.
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250417172448.1206107-4-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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ethtool first calls .get_dump_flags() to get the dump length. For
coredump, the driver calls the FW to get the coredump length (L1). The
min. of L1 and the user specified length is then passed to
.get_dump_data() (L2) to get the coredump. The actual coredump length
retrieved by the FW (L3) during .get_dump_data() may be smaller than L1.
This length discrepancy will trigger a WARN_ON() in
ethtool_get_dump_data().
ethtool has already vzalloc'ed a buffer with size L1. Just report
the coredump length as L2 even though the actual coredump length L3
may be smaller. The extra zero padding does not matter. This will
prevent the warning that may alarm the user.
For correctness, only do the final length update if there is no error.
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Reviewed-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com>
Signed-off-by: Shruti Parab <shruti.parab@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250417172448.1206107-3-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The firmware advertises a "hwrm_cmd_max_timeout" value to the driver
for NVRAM and coredump related functions that can take tens of seconds
to complete. The driver polls for the operation to complete under
mutex and may trigger hung task watchdog warning if the wait is too long.
To warn the user about this, the driver currently prints a warning if
this advertised value exceeds 40 seconds:
Device requests max timeout of %d seconds, may trigger hung task watchdog
Initially, we chose 40 seconds, well below the kernel's default
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT (120 seconds) to avoid triggering
the hung task watchdog. But 60 seconds is the timeout on most
production FW and cannot be reduced further. Change the driver's warning
threshold to 60 seconds to avoid triggering this warning on all
production devices. We also print the warning if the value exceeds
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT which may be set to architecture
specific defaults as low as 10 seconds.
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250417172448.1206107-2-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Convert socfpga to use devm_stmmac_pltfr_probe() to further simplify
the probe function, wrapping the call to the set_phy_mode() method
into socfpga_dwmac_init() which can be called from the plat_dat->init()
method. Also call this from socfpga_dwmac_resume() thereby simplifying
that function.
Using the devm variant also means we can remove the call to
stmmac_pltfr_remove().
Unfortunately, we can't also convert to stmmac_pltfr_pm_ops as there is
extra work done in socfpga_dwmac_resume().
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/E1u5Sns-001IJw-OY@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Initialisation/setup after registration is a bug. This is the second
of two patches fixing this in socfpga.
The set_phy_mode() functions do various hardware setup that would
interfere with a netdev that has been published, and thus available to
be opened by the kernel/userspace.
However, set_phy_mode() relies upon the netdev having been initialised
to get at the plat_stmmacenet_data structure, which is probably why it
was placed after stmmac_drv_probe(). We can remove that need by storing
a pointer to struct plat_stmmacenet_data in struct socfpga_dwmac.
Move the call to set_phy_mode() before calling stmmac_dvr_probe().
This also simplifies the probe function as there is no need to
unregister the netdev if set_phy_mode() fails.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/E1u5Snn-001IJq-L0@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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