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Replace blake2b_generic.c with a new file blake2b.c which implements the
BLAKE2b crypto_shash algorithms on top of the BLAKE2b library API.
Change the driver name suffix from "-generic" to "-lib" to reflect that
these algorithms now just use the (possibly arch-optimized) library.
This closely mirrors crypto/{md5,sha1,sha256,sha512}.c.
Remove include/crypto/internal/blake2b.h since it is no longer used.
Likewise, remove struct blake2b_state from include/crypto/blake2b.h.
Omit support for import_core and export_core, since there are no legacy
drivers that need these for these algorithms.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-10-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
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Migrate the arm-optimized BLAKE2b code from arch/arm/crypto/ to
lib/crypto/arm/. This makes the BLAKE2b library able to use it, and it
also simplifies the code because it's easier to integrate with the
library than crypto_shash.
This temporarily makes the arm-optimized BLAKE2b code unavailable via
crypto_shash. A later commit reimplements the blake2b-* crypto_shash
algorithms on top of the BLAKE2b library API, making it available again.
Note that as per the lib/crypto/ convention, the optimized code is now
enabled by default. So, this also fixes the longstanding issue where
the optimized BLAKE2b code was not enabled by default.
To see the diff from arch/arm/crypto/blake2b-neon-glue.c to
lib/crypto/arm/blake2b.h, view this commit with 'git show -M10'.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-8-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
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Add a library API for BLAKE2b, closely modeled after the BLAKE2s API.
This will allow in-kernel users such as btrfs to use BLAKE2b without
going through the generic crypto layer. In addition, as usual the
BLAKE2b crypto_shash algorithms will be reimplemented on top of this.
Note: to create lib/crypto/blake2b.c I made a copy of
lib/crypto/blake2s.c and made the updates from BLAKE2s => BLAKE2b. This
way, the BLAKE2s and BLAKE2b code is kept consistent. Therefore, it
borrows the SPDX-License-Identifier and Copyright from
lib/crypto/blake2s.c rather than crypto/blake2b_generic.c.
The library API uses 'struct blake2b_ctx', consistent with other
lib/crypto/ APIs. The existing 'struct blake2b_state' will be removed
once the blake2b crypto_shash algorithms are updated to stop using it.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-7-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
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Add le64_to_cpu_array() and cpu_to_le64_array(). These mirror the
corresponding 32-bit functions.
These will be used by the BLAKE2b code.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-6-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
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Add kerneldoc for the BLAKE2s library API.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-5-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
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A couple more small cleanups to the BLAKE2s code before these things get
propagated into the BLAKE2b code:
- Drop 'const' from some non-pointer function parameters. It was a bit
excessive and not conventional.
- Rename 'block' argument of blake2s_compress*() to 'data'. This is for
consistency with the SHA-* code, and also to avoid the implication
that it points to a singular "block".
No functional changes.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-4-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
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For consistency with the SHA-1, SHA-2, SHA-3 (in development), and MD5
library APIs, rename blake2s_state to blake2s_ctx.
As a refresher, the ctx name:
- Is a bit shorter.
- Avoids confusion with the compression function state, which is also
often called the state (but is just part of the full context).
- Is consistent with OpenSSL.
Not a big deal, of course. But consistency is nice. With a BLAKE2b
library API about to be added, this is a convenient time to update this.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-3-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
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Reorder the parameters of blake2s() from (out, in, key, outlen, inlen,
keylen) to (key, keylen, in, inlen, out, outlen).
This aligns BLAKE2s with the common conventions of pairing buffers and
their lengths, and having outputs follow inputs. This is widely used
elsewhere in lib/crypto/ and crypto/, and even elsewhere in the BLAKE2s
code itself such as blake2s_init_key() and blake2s_final(). So
blake2s() was a bit of an exception.
Notably, this results in the same order as hmac_*_usingrawkey().
Note that since the type signature changed, it's not possible for a
blake2s() call site to be silently missed.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-2-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
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Add FIPS cryptographic algorithm self-tests for all SHA-1 and SHA-2
algorithms. Following the "Implementation Guidance for FIPS 140-3"
document, to achieve this it's sufficient to just test a single test
vector for each of HMAC-SHA1, HMAC-SHA256, and HMAC-SHA512.
Just run these tests in the initcalls, following the example of e.g.
crypto/kdf_sp800108.c. Note that this should meet the FIPS self-test
requirement even in the built-in case, given that the initcalls run
before userspace, storage, network, etc. are accessible.
This does not fix a regression, seeing as lib/ has had SHA-1 support
since 2005 and SHA-256 support since 2018. Neither ever had FIPS
self-tests. Moreover, fips=1 support has always been an unfinished
feature upstream. However, with lib/ now being used more widely, it's
now seeing more scrutiny and people seem to want these now [1][2].
[1] https://lore.kernel.org/r/3226361.1758126043@warthog.procyon.org.uk/
[2] https://lore.kernel.org/r/f31dbb22-0add-481c-aee0-e337a7731f8e@oracle.com/
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251011001047.51886-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
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The "reg" in top-level has maxItems:2, thus repeating this in "if:then:"
blocks is redundant. Similarly number of items cannot be less than 1.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251027113107.75835-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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After DME Link Startup, the error return value is set to the MIPI UniPro
GenericErrorCode which can be 0 (SUCCESS) or 1 (FAILURE). Upon failure
during driver probe, the error code 1 is propagated back to the driver
probe function which must return a negative value to indicate an error,
but 1 is not negative, so the probe is considered to be successful even
though it failed. Subsequently, removing the driver results in an oops
because it is not in a valid state.
This happens because none of the callers of ufshcd_init() expect a
non-negative error code.
Fix the return value and documentation to match actual usage.
Fixes: 69f5eb78d4b0 ("scsi: ufs: core: Move the ufshcd_device_init(hba, true) call")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251024085918.31825-5-adrian.hunter@intel.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Link startup becomes unreliable for Intel Alder Lake based host
controllers when a 2nd DME_LINKSTARTUP is issued unnecessarily. Employ
UFSHCD_QUIRK_PERFORM_LINK_STARTUP_ONCE to suppress that from happening.
Fixes: 7dc9fb47bc9a ("scsi: ufs: ufs-pci: Add support for Intel ADL")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251024085918.31825-4-adrian.hunter@intel.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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ufshcd_link_startup() has a facility (link_startup_again) to issue
DME_LINKSTARTUP a 2nd time even though the 1st time was successful.
Some older hardware benefits from that, however the behaviour is
non-standard, and has been found to cause link startup to be unreliable
for some Intel Alder Lake based host controllers.
Add UFSHCD_QUIRK_PERFORM_LINK_STARTUP_ONCE to suppress
link_startup_again, in preparation for setting the quirk for affected
controllers.
Fixes: 7dc9fb47bc9a ("scsi: ufs: ufs-pci: Add support for Intel ADL")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251024085918.31825-3-adrian.hunter@intel.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Intel platforms with UFS, can support Suspend-to-Idle (S0ix) and
Suspend-to-RAM (S3). For S0ix the link state should be HIBERNATE. For
S3, state is lost, so the link state must be OFF. Driver policy,
expressed by spm_lvl, can be 3 (link HIBERNATE, device SLEEP) for S0ix
but must be changed to 5 (link OFF, device POWEROFF) for S3.
Fix support for S0ix/S3 by switching spm_lvl as needed. During suspend
->prepare(), if the suspend target state is not Suspend-to-Idle, ensure
the spm_lvl is at least 5 to ensure that resume will be possible from
deep sleep states. During suspend ->complete(), restore the spm_lvl to
its original value that is suitable for S0ix.
This fix is first needed in Intel Alder Lake based controllers.
Fixes: 7dc9fb47bc9a ("scsi: ufs: ufs-pci: Add support for Intel ADL")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251024085918.31825-2-adrian.hunter@intel.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Patch "Make HID attributes visible" is needed for older kernel versions
(e.g. 6.12) where ufs_get_device_desc() is called from ufshcd_probe_hba().
In these older kernel versions ufshcd_get_device_desc() may be called
after the sysfs attributes have been added. In the upstream kernel however
ufshcd_get_device_desc() is called before ufs_sysfs_add_nodes(). See also
the ufshcd_device_params_init() call from ufshcd_init(). Hence, calling
sysfs_update_group() is not necessary.
See also commit 69f5eb78d4b0 ("scsi: ufs: core: Move the
ufshcd_device_init(hba, true) call") in kernel v6.13.
This patch fixes the following kernel warning:
sysfs: cannot create duplicate filename '/devices/platform/3c2d0000.ufs/hid'
Workqueue: async async_run_entry_fn
Call trace:
dump_backtrace+0xfc/0x17c
show_stack+0x18/0x28
dump_stack_lvl+0x40/0x104
dump_stack+0x18/0x3c
sysfs_warn_dup+0x6c/0xc8
internal_create_group+0x1c8/0x504
sysfs_create_groups+0x38/0x9c
ufs_sysfs_add_nodes+0x20/0x58
ufshcd_init+0x1114/0x134c
ufshcd_pltfrm_init+0x728/0x7d8
ufs_google_probe+0x30/0x84
platform_probe+0xa0/0xe0
really_probe+0x114/0x454
__driver_probe_device+0xa4/0x160
driver_probe_device+0x44/0x23c
__device_attach_driver+0x15c/0x1f4
bus_for_each_drv+0x10c/0x168
__device_attach_async_helper+0x80/0xf8
async_run_entry_fn+0x4c/0x17c
process_one_work+0x26c/0x65c
worker_thread+0x33c/0x498
kthread+0x110/0x134
ret_from_fork+0x10/0x20
ufshcd 3c2d0000.ufs: ufs_sysfs_add_nodes: sysfs groups creation failed (err = -17)
Cc: Daniel Lee <chullee@google.com>
Cc: Peter Wang <peter.wang@mediatek.com>
Cc: Bjorn Andersson <andersson@kernel.org>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Fixes: bb7663dec67b ("scsi: ufs: sysfs: Make HID attributes visible")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Fixes: bb7663dec67b ("scsi: ufs: sysfs: Make HID attributes visible")
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Link: https://patch.msgid.link/20251028222433.1108299-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When building drivers/net/ethernet/intel/idpf/xsk.c for ARCH=arm with
CONFIG_CFI=y using a version of LLVM prior to 22.0.0, there is a
BUILD_BUG_ON failure:
$ cat arch/arm/configs/repro.config
CONFIG_BPF_SYSCALL=y
CONFIG_CFI=y
CONFIG_IDPF=y
CONFIG_XDP_SOCKETS=y
$ make -skj"$(nproc)" ARCH=arm LLVM=1 clean defconfig repro.config drivers/net/ethernet/intel/idpf/xsk.o
In file included from drivers/net/ethernet/intel/idpf/xsk.c:4:
include/net/libeth/xsk.h:205:2: error: call to '__compiletime_assert_728' declared with 'error' attribute: BUILD_BUG_ON failed: !__builtin_constant_p(tmo == libeth_xsktmo)
205 | BUILD_BUG_ON(!__builtin_constant_p(tmo == libeth_xsktmo));
| ^
...
libeth_xdp_tx_xmit_bulk() indirectly calls libeth_xsk_xmit_fill_buf()
but these functions are marked as __always_inline so that the compiler
can turn these indirect calls into direct ones and see that the tmo
parameter to __libeth_xsk_xmit_fill_buf_md() is ultimately libeth_xsktmo
from idpf_xsk_xmit().
Unfortunately, the generic kCFI pass in LLVM expands the kCFI bundles
from the indirect calls in libeth_xdp_tx_xmit_bulk() in such a way that
later optimizations cannot turn these calls into direct ones, making the
BUILD_BUG_ON fail because it cannot be proved at compile time that tmo
is libeth_xsktmo.
Disable the generic kCFI pass for libeth_xdp_tx_xmit_bulk() to ensure
these indirect calls can always be turned into direct calls to avoid
this error.
Closes: https://github.com/ClangBuiltLinux/linux/issues/2124
Fixes: 9705d6552f58 ("idpf: implement Rx path for AF_XDP")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Acked-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://patch.msgid.link/20251025-idpf-fix-arm-kcfi-build-error-v1-3-ec57221153ae@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
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Prior to clang 22.0.0 [1], ARM did not have an architecture specific
kCFI bundle lowering in the backend, which may cause issues. Select
CONFIG_ARCH_USES_CFI_GENERIC_LLVM_PASS to enable use of __nocfi_generic.
Link: https://github.com/llvm/llvm-project/commit/d130f402642fba3d065aacb506cb061c899558de [1]
Link: https://github.com/ClangBuiltLinux/linux/issues/2124
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://patch.msgid.link/20251025-idpf-fix-arm-kcfi-build-error-v1-2-ec57221153ae@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
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There are two different ways that LLVM can expand kCFI operand bundles
in LLVM IR: generically in the middle end or using an architecture
specific sequence when lowering LLVM IR to machine code in the backend.
The generic pass allows any architecture to take advantage of kCFI but
the expansion of these bundles in the middle end can mess with
optimizations that may turn indirect calls into direct calls when the
call target is known at compile time, such as after inlining.
Add __nocfi_generic, dependent on an architecture selecting
CONFIG_ARCH_USES_CFI_GENERIC_LLVM_PASS, to disable kCFI bundle
generation in functions where only the generic kCFI pass may cause
problems.
Link: https://github.com/ClangBuiltLinux/linux/issues/2124
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://patch.msgid.link/20251025-idpf-fix-arm-kcfi-build-error-v1-1-ec57221153ae@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
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Ajay Neeli <ajay.neeli@amd.com> says:
This patch series adds support for the UFS driver on the AMD Versal
Gen 2 SoC. It includes:
- Device tree bindings and driver implementation.
- Secure read support for the secure retrieval of UFS calibration
values.
The UFS host driver is based upon the Synopsis DesignWare (DWC) UFS
architecture, utilizing the existing UFSHCD_DWC and UFSHCD_PLATFORM
drivers.
Link: https://patch.msgid.link/20251021113003.13650-1-ajay.neeli@amd.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add support for the UFS host controller on the AMD Versal Gen 2 SoC,
built on the Synopsys DWC UFS architecture, using the UFSHCD DWC and
UFSHCD platform driver. This controller requires specific configurations
like M-PHY/RMMI/UniPro and vendor specific registers programming before
doing the UIC_LINKSTARTUP.
Signed-off-by: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com>
Signed-off-by: Ajay Neeli <ajay.neeli@amd.com>
Acked-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251021113003.13650-5-ajay.neeli@amd.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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- Add APIs for UFS PHY initialization.
- Verify M-PHY TX-RX configuration readiness.
- Confirm SRAM initialization and Set SRAM bypass.
- Retrieve UFS calibration values.
Signed-off-by: Ajay Neeli <ajay.neeli@amd.com>
Acked-by: Senthil Nathan Thangaraj <senthilnathan.thangaraj@amd.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Acked-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251021113003.13650-4-ajay.neeli@amd.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add support for a generic ioctl read/write interface using which users
can request firmware to perform read/write operations on a protected and
secure address space.
The functionality is introduced through the means of two new IOCTL IDs
which extend the existing PM_IOCTL EEMI API:
- IOCTL_READ_REG
- IOCTL_MASK_WRITE_REG
The caller only passes the node id of the given device and an offset.
The base address is not exposed to the caller and internally retrieved
by the firmware. Firmware will enforce an access policy on the incoming
read/write request.
Signed-off-by: Izhar Ameer Shaikh <izhar.ameer.shaikh@amd.com>
Reviewed-by: Tanmay Shah <tanmay.shah@amd.com>
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Signed-off-by: Ajay Neeli <ajay.neeli@amd.com>
Acked-by: Senthil Nathan Thangaraj <senthilnathan.thangaraj@amd.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Acked-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251021113003.13650-3-ajay.neeli@amd.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Gen 2 SoC
Add devicetree document for UFS Host Controller on AMD Versal Gen 2 SoC.
This includes clocks and clock-names as mandated by UFS common bindings.
Signed-off-by: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com>
Co-developed-by: Ajay Neeli <ajay.neeli@amd.com>
Signed-off-by: Ajay Neeli <ajay.neeli@amd.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251021113003.13650-2-ajay.neeli@amd.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The zero-copy Device Memory (Devmem) transmit path
relies on the socket's route cache (`dst_entry`) to
validate that the packet is being sent via the network
device to which the DMA buffer was bound.
However, this check incorrectly fails and returns `-ENODEV`
if the socket's route cache entry (`dst`) is merely missing
or expired (`dst == NULL`). This scenario is observed during
network events, such as when flow steering rules are deleted,
leading to a temporary route cache invalidation.
This patch fixes -ENODEV error for `net_devmem_get_binding()`
by doing the following:
1. It attempts to rebuild the route via `rebuild_header()`
if the route is initially missing (`dst == NULL`). This
allows the TCP/IP stack to recover from transient route
cache misses.
2. It uses `rcu_read_lock()` and `dst_dev_rcu()` to safely
access the network device pointer (`dst_dev`) from the
route, preventing use-after-free conditions if the
device is concurrently removed.
3. It maintains the critical safety check by validating
that the retrieved destination device (`dst_dev`) is
exactly the device registered in the Devmem binding
(`binding->dev`).
These changes prevent unnecessary ENODEV failures while
maintaining the critical safety requirement that the
Devmem resources are only used on the bound network device.
Reviewed-by: Bobby Eshleman <bobbyeshleman@meta.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Reported-by: Vedant Mathur <vedantmathur@google.com>
Suggested-by: Eric Dumazet <edumazet@google.com>
Fixes: bd61848900bf ("net: devmem: Implement TX path")
Signed-off-by: Shivaji Kant <shivajikant@google.com>
Link: https://patch.msgid.link/20251029065420.3489943-1-shivajikant@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Heiner Kallweit says:
====================
net: phy: add iterator mdiobus_for_each_phy
Add and use an iterator for all PHY's on a MII bus, and phy_find_next()
as a prerequisite.
====================
Link: https://patch.msgid.link/07fc63e8-53fd-46aa-853e-96187bba9d44@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Use new iterator mdiobus_for_each_phy() to simplify the code.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://patch.msgid.link/6d792b1e-d23d-4b7e-a94f-89c6617b620f@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Use new iterator mdiobus_for_each_phy() to simplify the code.
Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://patch.msgid.link/326d1337-2c22-42e3-a152-046ac5c43095@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Use new iterator mdiobus_for_each_phy() to simplify the code.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/65eb9490-5666-4b4a-8d26-3fca738b1315@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add an iterator for all PHY's on a MII bus, and phy_find_next()
as a prerequisite.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/cd112f15-401a-43d9-8525-9ff0965a68cd@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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max_addr is the max number of addresses, not the highest possible address,
therefore check phydev->mdio.addr > max_addr isn't correct.
To fix this change the semantics of max_addr, so that it represents
the highest possible address. IMO this is also a little bit more intuitive
wrt name max_addr.
Fixes: 4a107a0e8361 ("net: stmmac: mdio: use phy_find_first to simplify stmmac_mdio_register")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Reported-by: Simon Horman <horms@kernel.org>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/e869999b-2d4b-4dc1-9890-c2d3d1e8d0f8@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(),
pm_runtime_autosuspend() and pm_request_autosuspend() now include a call
to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to
pm_runtime_mark_last_busy().
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://patch.msgid.link/20251027115022.390997-4-sakari.ailus@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(),
pm_runtime_autosuspend() and pm_request_autosuspend() now include a call
to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to
pm_runtime_mark_last_busy().
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://patch.msgid.link/20251027115022.390997-2-sakari.ailus@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(),
pm_runtime_autosuspend() and pm_request_autosuspend() now include a call
to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to
pm_runtime_mark_last_busy().
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://patch.msgid.link/20251027115022.390997-1-sakari.ailus@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Rohan G Thomas says:
====================
net: stmmac: Fixes for stmmac Tx VLAN insert and EST
This patchset includes following fixes for stmmac Tx VLAN insert and
EST implementations:
1. Disable STAG insertion offloading, as DWMAC IPs doesn't support
offload of STAG for double VLAN packets and CTAG for single VLAN
packets when using the same register configuration. The current
configuration in the driver is undocumented and is adding an
additional 802.1Q tag with VLAN ID 0 for double VLAN packets.
2. Consider Tx VLAN offload tag length for maxSDU estimation.
3. Fix GCL bounds check
====================
Link: https://patch.msgid.link/20251028-qbv-fixes-v4-0-26481c7634e3@altera.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Fix the bounds checks for the hw supported maximum GCL entry
count and gate interval time.
Fixes: b60189e0392f ("net: stmmac: Integrate EST with TAPRIO scheduler API")
Signed-off-by: Rohan G Thomas <rohan.g.thomas@altera.com>
Reviewed-by: Matthew Gerlach <matthew.gerlach@altera.com>
Link: https://patch.msgid.link/20251028-qbv-fixes-v4-3-26481c7634e3@altera.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Queue maxSDU requirement of 802.1 Qbv standard requires mac to drop
packets that exceeds maxSDU length and maxSDU doesn't include
preamble, destination and source address, or FCS but includes
ethernet type and VLAN header.
On hardware with Tx VLAN offload enabled, VLAN header length is not
included in the skb->len, when Tx VLAN offload is requested. This
leads to incorrect length checks and allows transmission of
oversized packets. Add the VLAN_HLEN to the skb->len before checking
the Qbv maxSDU if Tx VLAN offload is requested for the packet.
Fixes: c5c3e1bfc9e0 ("net: stmmac: Offload queueMaxSDU from tc-taprio")
Signed-off-by: Rohan G Thomas <rohan.g.thomas@altera.com>
Reviewed-by: Matthew Gerlach <matthew.gerlach@altera.com>
Link: https://patch.msgid.link/20251028-qbv-fixes-v4-2-26481c7634e3@altera.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The DWMAC IP's VLAN tag insertion offload does not support inserting
STAG (802.1AD) and CTAG (802.1Q) types in bytes 13 and 14 using the
same MAC_VLAN_Incl and MAC_VLAN_Inner_Incl register configurations.
Currently, MAC_VLAN_Incl is configured to offload only STAG type
insertion. However, the DWMAC IP inserts a CTAG type when the inner
VLAN ID field of the descriptor is not configured, and a STAG type
when it is configured. This behavior is not documented and leads to
inconsistent double VLAN tagging.
Additionally, an unexpected CTAG with VLAN ID 0 is inserted, resulting
in frames like:
Frame 1: 110 bytes on wire (880 bits), 110 bytes captured (880 bits)
Ethernet II, Src: <src> (<src>), Dst: <dst> (<dst>)
IEEE 802.1ad, ID: 100
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0 (unexpected)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 200
Internet Protocol Version 4, Src: 192.168.4.10, Dst: 192.168.4.11
Internet Control Message Protocol
To avoid this undocumented and incorrect behavior, disable 802.1AD tag
insertion offload. Also, don't set CSVL bit. As per the data book,
when this bit is set, S-VLAN type (0x88A8) is inserted in the 13th and
14th bytes of transmitted packets and when this bit is reset, C-VLAN
type (0x8100) is inserted in the 13th and 14th bytes of transmitted
packets.
Fixes: 30d932279dc2 ("net: stmmac: Add support for VLAN Insertion Offload")
Fixes: e94e3f3b51ce ("net: stmmac: Add support for VLAN Insertion Offload in GMAC4+")
Fixes: 1d2c7a5fee31 ("net: stmmac: Refactor VLAN implementation")
Signed-off-by: Rohan G Thomas <rohan.g.thomas@altera.com>
Reviewed-by: Boon Khai Ng <boon.khai.ng@altera.com>
Link: https://patch.msgid.link/20251028-qbv-fixes-v4-1-26481c7634e3@altera.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Wei Fang says:
====================
net: enetc: Add i.MX94 ENETC support
i.MX94 NETC has two kinds of ENETCs, one is the same as i.MX95, which
can be used as a standalone network port. The other one is an internal
ENETC, it connects to the CPU port of NETC switch through the pseudo
MAC. Also, i.MX94 have multiple PTP Timers, which is different from
i.MX95. Any PTP Timer can be bound to a specified standalone ENETC by
the IERB ETBCR registers. Currently, this patch only add ENETC support
and Timer support for i.MX94. The switch will be added by a separate
patch set.
In addition, note that i.MX94 SoC is launched after i.MX95, its NETC
has a higher version, so the driver support is added after i.MX95.
====================
Link: https://patch.msgid.link/20251029013900.407583-1-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The revision of i.MX94 ENETC is changed to v4.3, so add this revision to
enetc_info to support i.MX94 ENETC. And add PTP suspport for i.MX94.
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20251029013900.407583-7-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The ENETC with pseudo MAC is an internal port which connects to the CPU
port of the switch. The switch CPU/host ENETC is fully integrated with
the switch and does not require a back-to-back MAC, instead a light
weight "pseudo MAC" provides the delineation between switch and ENETC.
This translates to lower power (less logic and memory) and lower delay
(as there is no serialization delay across this link).
Different from the standalone ENETC which is used as the external port,
the internal ENETC has a different PCIe device ID, and it does not have
Ethernet MAC port registers, instead, it has a small number of pseudo
MAC port registers, so some features are not supported by pseudo MAC,
such as loopback, half duplex, one-step timestamping and so on.
Therefore, the configuration of this internal ENETC is also somewhat
different from that of the standalone ENETC. So add the basic support
for ENETC with pseudo MAC. More supports will be added in the future.
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Link: https://patch.msgid.link/20251029013900.407583-6-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The i.MX94 has three PTP timers, and all standalone ENETCs can select
one of them to bind to as their PHC. The 'ptp-timer' property is used
to represent the PTP device of the Ethernet controller. So users can
add 'ptp-timer' to the ENETC node to specify the PTP timer. The driver
parses this property to bind the two hardware devices.
If the "ptp-timer" property is not present, the first timer of the PCIe
bus where the ENETC is located is used as the default bound PTP timer.
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20251029013900.407583-5-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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NETC blocks control is used for warm reset and pre-boot initialization.
Different versions of NETC blocks control are not exactly the same. We
need to add corresponding netc_devinfo data for each version. i.MX94
series are launched after i.MX95, so its NETC version (v4.3) is higher
than i.MX95 NETC (v4.1). Currently, the patch adds the following
configurations for ENETCs.
1. Set the link's MII protocol.
2. ENETC 0 (MAC 3) and the switch port 2 (MAC 2) share the same parallel
interface, but due to SoC constraint, they cannot be used simultaneously.
Since the switch is not supported yet, so the interface is assigned to
ENETC 0 by default.
The switch configuration will be added separately in a subsequent patch.
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20251029013900.407583-4-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The ENETC with pseudo MAC is used to connect to the CPU port of the NETC
switch. This ENETC has a different PCI device ID, so add a standard PCI
device compatible string to it.
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251029013900.407583-3-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add the compatible string "nxp,imx94-netc-blk-ctrl" for i.MX94 platforms.
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251029013900.407583-2-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The `as` operator is best avoided as it silently drops bits if the
destination type is smaller that the source.
For data types where this is clearly not the case, use `from` to
unambiguously signal that these conversions are lossless.
Acked-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Message-ID: <20251029-nova-as-v3-1-6a30c7333ad9@nvidia.com>
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Tariq Toukan says:
====================
tls: Introduce and use RX async resync request cancel function
This series by Shahar introduces RX async resync request cancel function
in tls module, and uses it in mlx5e driver.
For a device-offloaded TLS RX connection, the TLS module increments
rcd_delta each time a new TLS record is received, tracking the distance
from the original resync request. In the meanwhile, the device is
queried and is expected to respond, asynchronously.
However, if the device response is delayed or fails (e.g due to unstable
connection and device getting out of tracking, hardware errors, resource
exhaustion etc.), the TLS module keeps logging and incrementing
rcd_delta, which can lead to a WARN() when rcd_delta exceeds the
threshold.
This series improves this code area by canceling the resync request when
spotting an issue with the device response.
====================
Link: https://patch.msgid.link/1761508983-937977-1-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When device loses track of TLS records, it attempts to resync by
monitoring records and requests an asynchronous resynchronization
from software for this TLS connection.
The TLS module handles such device RX resync requests by logging record
headers and comparing them with the record tcp_sn when provided by the
device. It also increments rcd_delta to track how far the current
record tcp_sn is from the tcp_sn of the original resync request.
If the device later responds with a matching tcp_sn, the TLS module
approves the tcp_sn for resync.
However, the device response may be delayed or never arrive,
particularly due to traffic-related issues such as packet drops or
reordering. In such cases, the TLS module remains unaware that resync
will not complete, and continues performing unnecessary work by logging
headers and incrementing rcd_delta, which can eventually exceed the
threshold and trigger a WARN(). For example, this was observed when the
device got out of tracking, causing
mlx5e_ktls_handle_get_psv_completion() to fail and ultimately leading
to the rcd_delta warning.
To address this, call tls_offload_rx_resync_async_request_cancel()
to cancel the resync request and stop resync tracking in such error
cases. Also, increment the tls_resync_req_skip counter to track these
cancellations.
Fixes: 0419d8c9d8f8 ("net/mlx5e: kTLS, Add kTLS RX resync support")
Signed-off-by: Shahar Shitrit <shshitrit@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1761508983-937977-4-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When a netdev issues a RX async resync request for a TLS connection,
the TLS module handles it by logging record headers and attempting to
match them to the tcp_sn provided by the device. If a match is found,
the TLS module approves the tcp_sn for resynchronization.
While waiting for a device response, the TLS module also increments
rcd_delta each time a new TLS record is received, tracking the distance
from the original resync request.
However, if the device response is delayed or fails (e.g due to
unstable connection and device getting out of tracking, hardware
errors, resource exhaustion etc.), the TLS module keeps logging and
incrementing, which can lead to a WARN() when rcd_delta exceeds the
threshold.
To address this, introduce tls_offload_rx_resync_async_request_cancel()
to explicitly cancel resync requests when a device response failure is
detected. Call this helper also as a final safeguard when rcd_delta
crosses its threshold, as reaching this point implies that earlier
cancellation did not occur.
Signed-off-by: Shahar Shitrit <shshitrit@nvidia.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1761508983-937977-3-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Update tls_offload_rx_resync_async_request_start() and
tls_offload_rx_resync_async_request_end() to get a struct
tls_offload_resync_async parameter directly, rather than
extracting it from struct sock.
This change aligns the function signatures with the upcoming
tls_offload_rx_resync_async_request_cancel() helper, which
will be introduced in a subsequent patch.
Signed-off-by: Shahar Shitrit <shshitrit@nvidia.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1761508983-937977-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Ido Schimmel says:
====================
icmp: Add RFC 5837 support
tl;dr
=====
This patchset extends certain ICMP error messages (e.g., "Time
Exceeded") with incoming interface information in accordance with RFC
5837 [1]. This is required for more meaningful traceroute results in
unnumbered networks. Like other ICMP settings, the feature is controlled
via a per-{netns, address family} sysctl. The interface and the
implementation are designed to support more ICMP extensions.
Motivation
==========
Over the years, the kernel was extended with the ability to derive the
source IP of ICMP error messages from the interface that received the
datagram which elicited the ICMP error [2][3][4]. This is especially
important for "Time Exceeded" messages as it allows traceroute users to
trace the actual packet path along the network.
The above scheme does not work in unnumbered networks. In these
networks, only the loopback / VRF interface is assigned a global IP
address while router interfaces are assigned IPv6 link-local addresses.
As such, ICMP error messages are generated with a source IP derived from
the loopback / VRF interface, making it impossible to trace the actual
packet path when parallel links exist between routers.
The problem can be solved by implementing the solution proposed by RFC
4884 [5] and RFC 5837. The former defines an ICMP extension structure
that can be appended to selected ICMP messages and carry extension
objects. The latter defines an extension object called the "Interface
Information Object" (IIO) that can carry interface information (e.g.,
name, index, MTU) about interfaces with certain roles such as the
interface that received the datagram which elicited the ICMP error.
The payload of the datagram that elicited the error (potentially padded
/ trimmed) along with the ICMP extension structure will be queued to the
error queue of the originating socket, thereby allowing traceroute
applications to parse and display the information encoded in the ICMP
extension structure. Example:
# traceroute6 -e 2001:db8:1::3
traceroute to 2001:db8:1::3 (2001:db8:1::3), 30 hops max, 80 byte packets
1 2001:db8:1::2 (2001:db8:1::2) <INC:11,"eth1",mtu=1500> 0.214 ms 0.171 ms 0.162 ms
2 2001:db8:1::3 (2001:db8:1::3) <INC:12,"eth2",mtu=1500> 0.154 ms 0.135 ms 0.127 ms
# traceroute -e 192.0.2.3
traceroute to 192.0.2.3 (192.0.2.3), 30 hops max, 60 byte packets
1 192.0.2.2 (192.0.2.2) <INC:11,"eth1",mtu=1500> 0.191 ms 0.148 ms 0.144 ms
2 192.0.2.3 (192.0.2.3) <INC:12,"eth2",mtu=1500> 0.137 ms 0.122 ms 0.114 ms
Implementation
==============
As previously stated, the feature is controlled via a per-{netns,
address} sysctl. Specifically, a bit mask where each bit controls the
addition of a different ICMP extension to ICMP error messages.
Currently, only a single value is supported, to append the incoming
interface information.
Key points:
1. Global knob vs finer control. I am not aware of users who require
finer control, but it is possible that some users will want to avoid
appending ICMP extensions when the packet is sent out of a specific
interface (e.g., the management interface) or to a specific subnet. This
can be accomplished via a tc-bpf program that trims the ICMP extension
structure. An example program can be found here [6].
2. Split implementation between IPv4 / IPv6. While the implementation is
currently similar, there are some differences between both address
families. In addition, some extensions (e.g., RFC 8883 [7]) are
IPv6-specific. Given the above and given that the implementation is not
very complex, it makes sense to keep both implementations separate.
3. Compatibility with legacy applications. RFC 4884 from 2007 extended
certain ICMP messages with a length field that encodes the length of the
"original datagram" field, so that applications will be able to tell
where the "original datagram" ends and where the ICMP extension
structure starts.
Before the introduction of the IP{,6}_RECVERR_RFC4884 socket options
[8][9] in 2020 it was impossible for applications to know where the ICMP
extension structure starts and to this day some applications assume that
it starts at offset 128, which is the minimum length of the "original
datagram" field as specified by RFC 4884.
Therefore, in order to be compatible with both legacy and modern
applications, the datagram that elicited the ICMP error is trimmed /
padded to 128 bytes before appending the ICMP extension structure.
This behavior is specifically called out by RFC 4884: "Those wishing to
be backward compatible with non-compliant TRACEROUTE implementations
will include exactly 128 octets" [10].
Note that in 128 bytes we should be able to include enough headers for
the originating node to match the ICMP error message with the relevant
socket. For example, the following headers will be present in the
"original datagram" field when a VXLAN encapsulated IPv6 packet elicits
an ICMP error in an IPv6 underlay: IPv6 (40) | UDP (8) | VXLAN (8) | Eth
(14) | IPv6 (40) | UDP (8). Overall, 118 bytes.
If the 128 bytes limit proves to be insufficient for some use case, we
can consider dedicating a new bit in the previously mentioned sysctl to
allow for more bytes to be included in the "original datagram" field.
4. Extensibility. This patchset adds partial support for a single ICMP
extension. However, the interface and the implementation should be able
to support more extensions, if needed. Examples:
* More interface information objects as part of RFC 5837. We should be
able to derive the outgoing interface information and nexthop IP from
the dst entry attached to the packet that elicited the error.
* Node identification object (e.g., hostname / loopback IP) [11].
* Extended Information object which encodes aggregate header limits as
part of RFC 8883.
A previous proposal from Ishaan Gandhi and Ron Bonica is available here
[12].
Testing
=======
The existing traceroute selftest is extended to test that ICMP
extensions are reported correctly when enabled. Both address families
are tested and with different packet sizes in order to make sure that
trimming / padding works correctly. Tested that packets are parsed
correctly by the IP{,6}_RECVERR_RFC4884 socket options using Willem's
selftest [13].
Changelog
=========
Changes since v1 [14]:
* Patches #1-#2: Added a comment about field ordering and review tags.
* Patch #3: Converted "sysctl" to "echo" when testing the return value.
Added a check to skip the test if traceroute version is older
than 2.1.5.
[1] https://datatracker.ietf.org/doc/html/rfc5837
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1c2fb7f93cb20621772bf304f3dba0849942e5db
[3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fac6fce9bdb59837bb89930c3a92f5e0d1482f0b
[4] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4a8c416602d97a4e2073ed563d4d4c7627de19cf
[5] https://datatracker.ietf.org/doc/html/rfc4884
[6] https://gist.github.com/idosch/5013448cdb5e9e060e6bfdc8b433577c
[7] https://datatracker.ietf.org/doc/html/rfc8883
[8] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eba75c587e811d3249c8bd50d22bb2266ccd3c0f
[9] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=01370434df85eb76ecb1527a4466013c4aca2436
[10] https://datatracker.ietf.org/doc/html/rfc4884#section-5.3
[11] https://datatracker.ietf.org/doc/html/draft-ietf-intarea-extended-icmp-nodeid-04
[12] https://lore.kernel.org/netdev/20210317221959.4410-1-ishaangandhi@gmail.com/
[13] https://lore.kernel.org/netdev/aPpMItF35gwpgzZx@shredder/
[14] https://lore.kernel.org/netdev/20251022065349.434123-1-idosch@nvidia.com/
====================
Link: https://patch.msgid.link/20251027082232.232571-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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