strncpy() is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
We expect res->name to be NUL-terminated based on its usage with format
strings:
| dev_err(cpp->dev.parent, "Dangling area: %d:%d:%d:0x%0llx-0x%0llx%s%s\n",
| NFP_CPP_ID_TARGET_of(res->cpp_id),
| NFP_CPP_ID_ACTION_of(res->cpp_id),
| NFP_CPP_ID_TOKEN_of(res->cpp_id),
| res->start, res->end,
| res->name ? " " : "",
| res->name ? res->name : "");
... and with strcmp()
| if (!strcmp(res->name, NFP_RESOURCE_TBL_NAME)) {
Moreover, NUL-padding is not required as `res` is already
zero-allocated:
| res = kzalloc(sizeof(*res), GFP_KERNEL);
Considering the above, a suitable replacement is `strscpy` [2] due to
the fact that it guarantees NUL-termination on the destination buffer
without unnecessarily NUL-padding.
Let's also opt to use the more idiomatic strscpy() usage of (dest, src,
sizeof(dest)) rather than (dest, src, SOME_LEN).
Typically the pattern of 1) allocate memory for string, 2) copy string
into freshly-allocated memory is a candidate for kmemdup_nul() but in
this case we are allocating the entirety of the `res` struct and that
should stay as is. As mentioned above, simple 1:1 replacement of strncpy
-> strscpy :)
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Louis Peens <louis.peens@corigine.com>
Link: https://lore.kernel.org/r/20231011-strncpy-drivers-net-ethernet-netronome-nfp-nfpcore-nfp_resource-c-v1-1-7d1c984f0eba@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The driver allocates skbs during initialization and during Rx
processing. Take advantage of the fact that the former happens in
process context and allocate the skbs using GFP_KERNEL to decrease the
probability of allocation failure.
Tested with CONFIG_DEBUG_ATOMIC_SLEEP=y.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/dfa6ed0926e045fe7c14f0894cc0c37fee81bf9d.1697034729.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently for VFs, mailbox returns ENODEV error when hardware timestamping
enable is requested. This patch fixes this issue. Modified this patch to
return EPERM error for the PF/VFs which are not attached to CGX/RPM.
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: Sai Krishna <saikrishnag@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20231011121551.1205211-1-saikrishnag@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If the netdevice is within a container and communicates externally
through network technologies such as VxLAN, we won't be able to find
routing information in the init_net namespace. To address this issue,
we need to add a struct net parameter to the smc_ib_find_route function.
This allow us to locate the routing information within the corresponding
net namespace, ensuring the correct completion of the SMC CLC interaction.
Fixes: e5c4744cfb ("net/smc: add SMC-Rv2 connection establishment")
Signed-off-by: Albert Huang <huangjie.albert@bytedance.com>
Reviewed-by: Dust Li <dust.li@linux.alibaba.com>
Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com>
Link: https://lore.kernel.org/r/20231011074851.95280-1-huangjie.albert@bytedance.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
As reported by Tom, .NET and applications build on top of it rely
on connect(AF_UNSPEC) to async cancel pending I/O operations on TCP
socket.
The blamed commit below caused a regression, as such cancellation
can now fail.
As suggested by Eric, this change addresses the problem explicitly
causing blocking I/O operation to terminate immediately (with an error)
when a concurrent disconnect() is executed.
Instead of tracking the number of threads blocked on a given socket,
track the number of disconnect() issued on such socket. If such counter
changes after a blocking operation releasing and re-acquiring the socket
lock, error out the current operation.
Fixes: 4faeee0cf8 ("tcp: deny tcp_disconnect() when threads are waiting")
Reported-by: Tom Deseyn <tdeseyn@redhat.com>
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1886305
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/f3b95e47e3dbed840960548aebaa8d954372db41.1697008693.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since the introduction of the ice driver the code has been
double-shifting the RSS enabling field, because the define already has
shifts in it and can't have the regular pattern of "a << shiftval &
mask" applied.
Most places in the code got it right, but one line was still wrong. Fix
this one location for easy backports to stable. An in-progress patch
fixes the defines to "standard" and will be applied as part of the
regular -next process sometime after this one.
Fixes: d76a60ba7a ("ice: Add support for VLANs and offloads")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
CC: stable@vger.kernel.org
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231010203101.406248-1-jacob.e.keller@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In bcm_sf2_mdio_register(), the class_find_device() will call get_device()
to increment reference count for priv->master_mii_bus->dev if
of_mdio_find_bus() succeeds. If mdiobus_alloc() or mdiobus_register()
fails, it will call get_device() twice without decrement reference count
for the device. And it is the same if bcm_sf2_mdio_register() succeeds but
fails in bcm_sf2_sw_probe(), or if bcm_sf2_sw_probe() succeeds. If the
reference count has not decremented to zero, the dev related resource will
not be freed.
So remove the get_device() in bcm_sf2_mdio_register(), and call
put_device() if mdiobus_alloc() or mdiobus_register() fails and in
bcm_sf2_mdio_unregister() to solve the issue.
And as Simon suggested, unwind from errors for bcm_sf2_mdio_register() and
just return 0 if it succeeds to make it cleaner.
Fixes: 461cd1b03e ("net: dsa: bcm_sf2: Register our slave MDIO bus")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Suggested-by: Simon Horman <horms@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20231011032419.2423290-1-ruanjinjie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Dave Marchevsky says:
====================
At Meta we have a profiling daemon which periodically collects
information on many hosts. This collection usually involves grabbing
stacks (user and kernel) using perf_event BPF progs and later symbolicating
them. For user stacks we try to use BPF_F_USER_BUILD_ID and rely on
remote symbolication, but BPF_F_USER_BUILD_ID doesn't always succeed. In
those cases we must fall back to digging around in /proc/PID/maps to map
virtual address to (binary, offset). The /proc/PID/maps digging does not
occur synchronously with stack collection, so the process might already
be gone, in which case it won't have /proc/PID/maps and we will fail to
symbolicate.
This 'exited process problem' doesn't occur very often as
most of the prod services we care to profile are long-lived daemons, but
there are enough usecases to warrant a workaround: a BPF program which
can be optionally loaded at data collection time and essentially walks
/proc/PID/maps. Currently this is done by walking the vma list:
struct vm_area_struct* mmap = BPF_CORE_READ(mm, mmap);
mmap_next = BPF_CORE_READ(rmap, vm_next); /* in a loop */
Since commit 763ecb0350 ("mm: remove the vma linked list") there's no
longer a vma linked list to walk. Walking the vma maple tree is not as
simple as hopping struct vm_area_struct->vm_next. Luckily,
commit f39af05949 ("mm: add VMA iterator"), another commit in that series,
added struct vma_iterator and for_each_vma macro for easy vma iteration. If
similar functionality was exposed to BPF programs, it would be perfect for our
usecase.
This series adds such functionality, specifically a BPF equivalent of
for_each_vma using the open-coded iterator style.
Notes:
* This approach was chosen after discussion on a previous series [0] which
attempted to solve the same problem by adding a BPF_F_VMA_NEXT flag to
bpf_find_vma.
* Unlike the task_vma bpf_iter, the open-coded iterator kfuncs here do not
drop the vma read lock between iterations. See Alexei's response in [0].
* The [vsyscall] page isn't really part of task->mm's vmas, but
/proc/PID/maps returns information about it anyways. The vma iter added
here does not do the same. See comment on selftest in patch 3.
* bpf_iter_task_vma allocates a _data struct which contains - among other
things - struct vma_iterator, using BPF allocator and keeps a pointer to
the bpf_iter_task_vma_data. This is done in order to prevent changes to
struct ma_state - which is wrapped by struct vma_iterator - from
necessitating changes to uapi struct bpf_iter_task_vma.
Changelog:
v6 -> v7: https://lore.kernel.org/bpf/20231010185944.3888849-1-davemarchevsky@fb.com/
Patch numbers correspond to their position in v6
Patch 2 ("selftests/bpf: Rename bpf_iter_task_vma.c to bpf_iter_task_vmas.c")
* Add Andrii ack
Patch 3 ("bpf: Introduce task_vma open-coded iterator kfuncs")
* Add Andrii ack
* Add missing __diag_ignore_all for -Wmissing-prototypes (Song)
Patch 4 ("selftests/bpf: Add tests for open-coded task_vma iter")
* Remove two unnecessary header includes (Andrii)
* Remove extraneous !vmas_seen check (Andrii)
New Patch ("bpf: Add BPF_KFUNC_{START,END}_defs macros")
* After talking to Andrii, this is an attempt to clean up __diag_ignore_all
spam everywhere kfuncs are defined. If nontrivial changes are needed,
let's apply the other 4 and I'll respin as a standalone patch.
v5 -> v6: https://lore.kernel.org/bpf/20231010175637.3405682-1-davemarchevsky@fb.com/
Patch 4 ("selftests/bpf: Add tests for open-coded task_vma iter")
* Remove extraneous blank line. I did this manually to the .patch file
for v5, which caused BPF CI to complain about failing to apply the
series
v4 -> v5: https://lore.kernel.org/bpf/20231002195341.2940874-1-davemarchevsky@fb.com/
Patch numbers correspond to their position in v4
New Patch ("selftests/bpf: Rename bpf_iter_task_vma.c to bpf_iter_task_vmas.c")
* Patch 2's renaming of this selftest, and associated changes in the
userspace runner, are split out into this separate commit (Andrii)
Patch 2 ("bpf: Introduce task_vma open-coded iterator kfuncs")
* Remove bpf_iter_task_vma kfuncs from libbpf's bpf_helpers.h, they'll be
added to selftests' bpf_experimental.h in selftests patch below (Andrii)
* Split bpf_iter_task_vma.c renaming into separate commit (Andrii)
Patch 3 ("selftests/bpf: Add tests for open-coded task_vma iter")
* Add bpf_iter_task_vma kfuncs to bpf_experimental.h (Andrii)
* Remove '?' from prog SEC, open_and_load the skel in one operation (Andrii)
* Ensure that fclose() always happens in test runner (Andrii)
* Use global var w/ 1000 (vm_start, vm_end) structs instead of two
MAP_TYPE_ARRAY's w/ 1k u64s each (Andrii)
v3 -> v4: https://lore.kernel.org/bpf/20230822050558.2937659-1-davemarchevsky@fb.com/
Patch 1 ("bpf: Don't explicitly emit BTF for struct btf_iter_num")
* Add Andrii ack
Patch 2 ("bpf: Introduce task_vma open-coded iterator kfuncs")
* Mark bpf_iter_task_vma_new args KF_RCU and remove now-unnecessary !task
check (Yonghong)
* Although KF_RCU is a function-level flag, in reality it only applies to
the task_struct *task parameter, as the other two params are a scalar int
and a specially-handled KF_ARG_PTR_TO_ITER
* Remove struct bpf_iter_task_vma definition from uapi headers, define in
kernel/bpf/task_iter.c instead (Andrii)
Patch 3 ("selftests/bpf: Add tests for open-coded task_vma iter")
* Use a local var when looping over vmas to track map idx. Update vmas_seen
global after done iterating. Don't start iterating or update vmas_seen if
vmas_seen global is nonzero. (Andrii)
* Move getpgid() call to correct spot - above skel detach. (Andrii)
v2 -> v3: https://lore.kernel.org/bpf/20230821173415.1970776-1-davemarchevsky@fb.com/
Patch 1 ("bpf: Don't explicitly emit BTF for struct btf_iter_num")
* Add Yonghong ack
Patch 2 ("bpf: Introduce task_vma open-coded iterator kfuncs")
* UAPI bpf header and tools/ version should match
* Add bpf_iter_task_vma_kern_data which bpf_iter_task_vma_kern points to,
bpf_mem_alloc/free it instead of just vma_iterator. (Alexei)
* Inner data ptr == NULL implies initialization failed
v1 -> v2: https://lore.kernel.org/bpf/20230810183513.684836-1-davemarchevsky@fb.com/
* Patch 1
* Now removes the unnecessary BTF_TYPE_EMIT instead of changing the
type (Yonghong)
* Patch 2
* Don't do unnecessary BTF_TYPE_EMIT (Yonghong)
* Bump task refcount to prevent ->mm reuse (Yonghong)
* Keep a pointer to vma_iterator in bpf_iter_task_vma, alloc/free
via BPF mem allocator (Yonghong, Stanislav)
* Patch 3
[0]: https://lore.kernel.org/bpf/20230801145414.418145-1-davemarchevsky@fb.com/
====================
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
The open-coded task_vma iter added earlier in this series allows for
natural iteration over a task's vmas using existing open-coded iter
infrastructure, specifically bpf_for_each.
This patch adds a test demonstrating this pattern and validating
correctness. The vma->vm_start and vma->vm_end addresses of the first
1000 vmas are recorded and compared to /proc/PID/maps output. As
expected, both see the same vmas and addresses - with the exception of
the [vsyscall] vma - which is explained in a comment in the prog_tests
program.
Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20231013204426.1074286-5-davemarchevsky@fb.com
This patch adds kfuncs bpf_iter_task_vma_{new,next,destroy} which allow
creation and manipulation of struct bpf_iter_task_vma in open-coded
iterator style. BPF programs can use these kfuncs directly or through
bpf_for_each macro for natural-looking iteration of all task vmas.
The implementation borrows heavily from bpf_find_vma helper's locking -
differing only in that it holds the mmap_read lock for all iterations
while the helper only executes its provided callback on a maximum of 1
vma. Aside from locking, struct vma_iterator and vma_next do all the
heavy lifting.
A pointer to an inner data struct, struct bpf_iter_task_vma_data, is the
only field in struct bpf_iter_task_vma. This is because the inner data
struct contains a struct vma_iterator (not ptr), whose size is likely to
change under us. If bpf_iter_task_vma_kern contained vma_iterator directly
such a change would require change in opaque bpf_iter_task_vma struct's
size. So better to allocate vma_iterator using BPF allocator, and since
that alloc must already succeed, might as well allocate all iter fields,
thereby freezing struct bpf_iter_task_vma size.
Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20231013204426.1074286-4-davemarchevsky@fb.com
Further patches in this series will add a struct bpf_iter_task_vma,
which will result in a name collision with the selftest prog renamed in
this patch. Rename the selftest to avoid the collision.
Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20231013204426.1074286-3-davemarchevsky@fb.com
Commit 6018e1f407 ("bpf: implement numbers iterator") added the
BTF_TYPE_EMIT line that this patch is modifying. The struct btf_iter_num
doesn't exist, so only a forward declaration is emitted in BTF:
FWD 'btf_iter_num' fwd_kind=struct
That commit was probably hoping to ensure that struct bpf_iter_num is
emitted in vmlinux BTF. A previous version of this patch changed the
line to emit the correct type, but Yonghong confirmed that it would
definitely be emitted regardless in [0], so this patch simply removes
the line.
This isn't marked "Fixes" because the extraneous btf_iter_num FWD wasn't
causing any issues that I noticed, aside from mild confusion when I
looked through the code.
[0]: https://lore.kernel.org/bpf/25d08207-43e6-36a8-5e0f-47a913d4cda5@linux.dev/
Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20231013204426.1074286-2-davemarchevsky@fb.com
Fix spelling of "Structure".
Fix multiple kernel-doc warnings:
clk-provider.h:269: warning: Function parameter or member 'recalc_rate' not described in 'clk_ops'
clk-provider.h:468: warning: Function parameter or member 'parent_data' not described in 'clk_hw_register_fixed_rate_with_accuracy_parent_data'
clk-provider.h:468: warning: Excess function parameter 'parent_name' description in 'clk_hw_register_fixed_rate_with_accuracy_parent_data'
clk-provider.h:482: warning: Function parameter or member 'parent_data' not described in 'clk_hw_register_fixed_rate_parent_accuracy'
clk-provider.h:482: warning: Excess function parameter 'parent_name' description in 'clk_hw_register_fixed_rate_parent_accuracy'
clk-provider.h:687: warning: Function parameter or member 'flags' not described in 'clk_divider'
clk-provider.h:1164: warning: Function parameter or member 'flags' not described in 'clk_fractional_divider'
clk-provider.h:1164: warning: Function parameter or member 'approximation' not described in 'clk_fractional_divider'
clk-provider.h:1213: warning: Function parameter or member 'flags' not described in 'clk_multiplier'
Fixes: 9fba738a53 ("clk: add duty cycle support")
Fixes: b2476490ef ("clk: introduce the common clock framework")
Fixes: 2d34f09e79 ("clk: fixed-rate: Add support for specifying parents via DT/pointers")
Fixes: f5290d8e4f ("clk: asm9260: use parent index to link the reference clock")
Fixes: 9d9f78ed9a ("clk: basic clock hardware types")
Fixes: e2d0e90fae ("clk: new basic clk type for fractional divider")
Fixes: f2e0a53271 ("clk: Add a basic multiplier clock")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: linux-clk@vger.kernel.org
Link: https://lore.kernel.org/r/20230930221428.18463-1-rdunlap@infradead.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
- Add support for the RZ/G3S (R9A08G045) SoC,
- Miscellaneous fixes and improvements.
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Merge tag 'renesas-clk-for-v6.7-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-renesas
Pulll more Renesas clk driver updates from Geert Uytterhoeven:
- Add support for the RZ/G3S (R9A08G045) SoC
- Miscellaneous fixes and improvements
* tag 'renesas-clk-for-v6.7-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
clk: renesas: r9a08g045: Add clock and reset support for SDHI1 and SDHI2
clk: renesas: rzg2l: Use %x format specifier to print CLK_ON_R()
clk: renesas: Add minimal boot support for RZ/G3S SoC
clk: renesas: rzg2l: Add divider clock for RZ/G3S
clk: renesas: rzg2l: Refactor SD mux driver
clk: renesas: rzg2l: Remove CPG_SDHI_DSEL from generic header
clk: renesas: rzg2l: Add struct clk_hw_data
clk: renesas: rzg2l: Add support for RZ/G3S PLL
clk: renesas: rzg2l: Remove critical area
clk: renesas: rzg2l: Fix computation formula
clk: renesas: rzg2l: Trust value returned by hardware
clk: renesas: rzg2l: Lock around writes to mux register
clk: renesas: rzg2l: Wait for status bit of SD mux before continuing
clk: renesas: rcar-gen3: Extend SDnH divider table
dt-bindings: clock: renesas,rzg2l-cpg: Document RZ/G3S SoC
Ido Schimmel says:
====================
selftests: fib_tests: Fixes for multipath list receive tests
Fix two issues in recently added FIB multipath list receive tests.
====================
Link: https://lore.kernel.org/r/20231010132113.3014691-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The tests rely on the IPv{4,6} FIB trace points being triggered once for
each forwarded packet. If receive processing is deferred to the
ksoftirqd task these invocations will not be counted and the tests will
fail. Fix by specifying the '-a' flag to avoid perf from filtering on
the mausezahn task.
Before:
# ./fib_tests.sh -t ipv4_mpath_list
IPv4 multipath list receive tests
TEST: Multipath route hit ratio (.68) [FAIL]
# ./fib_tests.sh -t ipv6_mpath_list
IPv6 multipath list receive tests
TEST: Multipath route hit ratio (.27) [FAIL]
After:
# ./fib_tests.sh -t ipv4_mpath_list
IPv4 multipath list receive tests
TEST: Multipath route hit ratio (1.00) [ OK ]
# ./fib_tests.sh -t ipv6_mpath_list
IPv6 multipath list receive tests
TEST: Multipath route hit ratio (.99) [ OK ]
Fixes: 8ae9efb859 ("selftests: fib_tests: Add multipath list receive tests")
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/netdev/202309191658.c00d8b8-oliver.sang@intel.com/
Tested-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Tested-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Link: https://lore.kernel.org/r/20231010132113.3014691-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The test relies on the fib:fib_table_lookup trace point being triggered
once for each forwarded packet. If RP filter is not disabled, the trace
point will be triggered twice for each packet (for source validation and
forwarding), potentially masking actual bugs. Fix by explicitly
disabling RP filter.
Before:
# ./fib_tests.sh -t ipv4_mpath_list
IPv4 multipath list receive tests
TEST: Multipath route hit ratio (1.99) [ OK ]
After:
# ./fib_tests.sh -t ipv4_mpath_list
IPv4 multipath list receive tests
TEST: Multipath route hit ratio (.99) [ OK ]
Fixes: 8ae9efb859 ("selftests: fib_tests: Add multipath list receive tests")
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/netdev/202309191658.c00d8b8-oliver.sang@intel.com/
Tested-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Tested-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Link: https://lore.kernel.org/r/20231010132113.3014691-2-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Justin Tee <justintee8345@gmail.com> says:
Update lpfc to revision 14.2.0.15
This patch set contains error handling fixes, ELS bug fixes, and
logging improvements.
The patches were cut against Martin's 6.7/scsi-queue tree.
Link: https://lore.kernel.org/r/20231009161812.97232-1-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
resctrlfs.c contains mostly functions that interact in some way with
resctrl FS entries while functions inside resctrl_val.c deal with
measurements and benchmarking.
run_benchmark() is located in resctrlfs.c even though it's purpose
is not interacting with the resctrl FS but to execute cache checking
logic.
Move run_benchmark() to resctrl_val.c just before resctrl_val() that
makes use of run_benchmark(). Make run_benchmark() static since it's
not used between multiple files anymore.
Remove return comment from kernel-doc since the function is type void.
Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Writing bitmasks to the schemata can fail when the bitmask doesn't
adhere to constraints defined by what a particular CPU supports.
Some example of constraints are max length or having contiguous bits.
The driver should properly return errors when any rule concerning
bitmask format is broken.
Resctrl FS returns error codes from fprintf() only when fclose() is
called. Current error checking scheme allows invalid bitmasks to be
written into schemata file and the selftest doesn't notice because the
fclose() error code isn't checked.
Substitute fopen(), flose() and fprintf() with open(), close() and
write() to avoid error code buffering between fprintf() and fclose().
Remove newline character from the schema string after writing it to
the schemata file so it prints correctly before function return.
Pass the string generated with strerror() to the "reason" buffer so
the error message is more verbose. Extend "reason" buffer so it can hold
longer messages.
Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
The preexisting LOG_NODE message flag frequently spams a subset of the same
log messages during normal FC driver operations. When analyzing driver
logs, this sometimes leads to difficulty in troubleshooting.
Because LOG_IP log message flag is unused, convert it to a new
LOG_NODE_VERBOSE flag. The LOG_NODE_VERBOSE shall specifically be used for
diagnosing issues that require precise ndlp tracking detail.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231009161812.97232-6-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
A WCQE success completion status does not guarantee valid LS_ACC receipt
for ELS commands. So, introduce a small helper routine that validates ELS
LS_ACC frames in ELS cmpl routines.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231009161812.97232-5-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently, NPIV ports send PRLI_ACC to all received unsolicited PRLI
requests. For an NPIV port, there is no point to PRLI_ACC if the received
PRLI request has the initiator function bit set and the target function bit
unset. Modify the lpfc_rcv_prli_support_check() routine to send a PRLI_RJT
in such cases. NPIV ports are expected to send PRLI_ACC only if the Target
function bit is set.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231009161812.97232-4-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During receipt of a hardware error attention ACQE, IOERR_SLI_DOWN status is
set by the driver for all outstanding I/Os.
In such hardware error attention cases, we can treat the situation exactly
the same as pci_channel_offline. Thus, add IOERR_SLI_DOWN status to the
same category as pci_channel_offline handling in lpfc_nvme_io_cmd_cmpl.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231009161812.97232-3-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In order to enter the !rc if statement block in question, rc had to have
been zero to begin with. Thus, the rc = 0 assignment is unnecessary and
can be removed.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231009161812.97232-2-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The initial value of 5% chosen for the maximum allowed percentage
difference between resctrl mbm value and IMC mbm value in
commit 06bd03a57f ("selftests/resctrl: Fix MBA/MBM results reporting
format") was "randomly chosen value" (as admitted by the changelog).
When running tests in our lab across a large number platforms, 5%
difference upper bound for success seems a bit on the low side for the
MBA and MBM tests. Some platforms produce outliers that are slightly
above that, typically 6-7%, which leads MBA/MBM test frequently
failing.
Replace the "randomly chosen value" with a success bound that is based
on those measurements across large number of platforms by relaxing the
MBA/MBM success bound to 8%. The relaxed bound removes the failures due
the frequent outliers.
Fixed commit description style error during merge:
Shuah Khan <skhan@linuxfoundation.org>
Fixes: 06bd03a57f ("selftests/resctrl: Fix MBA/MBM results reporting format")
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
The MBA and CMT tests expect support of other features to be able to
run.
When platform only supports MBA but not MBM, MBA test will fail with:
Failed to open total bw file: No such file or directory
When platform only supports CMT but not CAT, CMT test will fail with:
Failed to open bit mask file '/sys/fs/resctrl/info/L3/cbm_mask': No such file or directory
It leads to the test reporting test fail (even if no test was run at
all).
Extend feature checks to cover these two conditions to show these tests
were skipped rather than failed.
Fixes: ee0415681e ("selftests/resctrl: Use resctrl/info for feature detection")
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Cc: <stable@vger.kernel.org> # selftests/resctrl: Refactor feature check to use resource and feature name
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Feature check in validate_resctrl_feature_request() takes in the test
name string and maps that to what to check per test.
Pass resource and feature names to validate_resctrl_feature_request()
directly rather than deriving them from the test name inside the
function which makes the feature check easier to extend for new test
cases.
Use !! in the return statement to make the boolean conversion more
obvious even if it is not strictly necessary from correctness point of
view (to avoid it looking like the function is returning a freed
pointer).
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Cc: <stable@vger.kernel.org> # selftests/resctrl: Remove duplicate feature check from CMT test
Cc: <stable@vger.kernel.org> # selftests/resctrl: Move _GNU_SOURCE define into Makefile
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
_GNU_SOURCE is defined in resctrl.h. Defining _GNU_SOURCE has a large
impact on what gets defined when including headers either before or
after it. This can result in compile failures if .c file decides to
include a standard header file before resctrl.h.
It is safer to define _GNU_SOURCE in Makefile so it is always defined
regardless of in which order includes are done.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
The test runner run_cmt_test() in resctrl_tests.c checks for CMT
feature and does not run cmt_resctrl_val() if CMT is not supported.
Then cmt_resctrl_val() also check is CMT is supported.
Remove the duplicated feature check for CMT from cmt_resctrl_val().
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Unmounting resctrl FS has been moved into the per test functions in
resctrl_tests.c by commit caddc0fbe4 ("selftests/resctrl: Move
resctrl FS mount/umount to higher level"). In case a signal (SIGINT,
SIGTERM, or SIGHUP) is received, the running selftest is aborted by
ctrlc_handler() which then unmounts resctrl fs before exiting. The
current section between signal_handler_register() and
signal_handler_unregister(), however, does not cover the entire
duration when resctrl FS is mounted.
Move signal_handler_register() and signal_handler_unregister() calls
from per test files into resctrl_tests.c to properly unmount resctrl
fs. In order to not add signal_handler_register()/unregister() n times,
create helpers test_prepare() and test_cleanup().
Do not call ksft_exit_fail_msg() in test_prepare() but only in the per
test function to keep the control flow cleaner without adding calls to
exit() deep into the call chain.
Adjust child process kill() call in ctrlc_handler() to only be invoked
if the child was already forked.
Fixes: caddc0fbe4 ("selftests/resctrl: Move resctrl FS mount/umount to higher level")
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
signal_handler_unregister() calls sigaction() with uninitializing
sa_flags in the struct sigaction.
Make sure sa_flags is always initialized in signal_handler_unregister()
by initializing the struct sigaction when declaring it. Also add the
initialization to signal_handler_register() even if there are no know
bugs in there because correctness is then obvious from the code itself.
Fixes: 73c55fa5ab ("selftests/resctrl: Commonize the signal handler register/unregister for all tests")
Suggested-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
The driver now includes the print message 'IO is completed, no reset is
required' when a reset is requested but not issued. This message is
displayed only when pending SCSI IO is completed before issuing the reset.
Signed-off-by: Chandrakanth patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Link: https://lore.kernel.org/r/20231003110021.168862-3-chandrakanth.patil@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In BMC environments with concurrent access to multiple registers, certain
registers occasionally yield a value of 0 even after 3 retries due to
hardware errata. As a fix, we have extended the retry count from 3 to 30.
The same errata applies to the mpt3sas driver, and a similar patch has
been accepted. Please find more details in the mpt3sas patch reference
link.
Link: https://lore.kernel.org/r/20230829090020.5417-2-ranjan.kumar@broadcom.com
Fixes: 272652fcbf ("scsi: megaraid_sas: add retry logic in megasas_readl")
Cc: stable@vger.kernel.org
Signed-off-by: Chandrakanth patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Link: https://lore.kernel.org/r/20231003110021.168862-2-chandrakanth.patil@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This contains some fixes for Tegra234 boards as well as some cleanups
that will help with json-schema validation.
For older devices, there's now support for display on Smaug (a.k.a.
Pixel C) and the IOMMU for host1x is enabled on Tegra132, which should
help with large memory allocations for display and multimedia.
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Merge tag 'tegra-for-6.7-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/dt
arm64: tegra: Device tree changes for v6.7-rc1
This contains some fixes for Tegra234 boards as well as some cleanups
that will help with json-schema validation.
For older devices, there's now support for display on Smaug (a.k.a.
Pixel C) and the IOMMU for host1x is enabled on Tegra132, which should
help with large memory allocations for display and multimedia.
* tag 'tegra-for-6.7-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
arm64: tegra: Use correct interrupts for Tegra234 TKE
arm64: tegra: Add power-sensors for Tegra234 boards
arm64: tegra: Mark Tegra234 SPI as compatible with Tegra114
arm64: tegra: Add dmas and dma-names for Tegra234 UARTE
arm64: tegra: Use correct format for clocks property
arm64: tegra: Remove duplicate nodes on Jetson Orin NX
arm64: tegra: Add missing current-speed for SBSA UART
arm64: tegra: Add display panel node on Smaug
arm64: tegra: Add backlight node on Smaug
arm64: tegra: Add DSI/CSI regulator on Smaug
arm64: tegra: Enable IOMMU for host1x on Tegra132
arm64: tegra: Fix P3767 QSPI speed
arm64: tegra: Fix P3767 card detect polarity
Link: https://lore.kernel.org/r/20231013153723.1729109-6-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This contains some rework of the Tegra PMC device tree bindings that
will help with validating device trees with json-schema.
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Merge tag 'tegra-for-6.7-dt-bindings' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/dt
dt-bindings: Changes for v6.7-rc1
This contains some rework of the Tegra PMC device tree bindings that
will help with validating device trees with json-schema.
* tag 'tegra-for-6.7-dt-bindings' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
dt-bindings: arm: tegra: pmc: Relicense and move into soc/tegra directory
dt-bindings: arm: tegra: pmc: Reformat example
dt-bindings: arm: tegra: pmc: Restructure pad configuration node schema
dt-bindings: arm: tegra: pmc: Increase maximum number of clocks per powergate
dt-bindings: arm: tegra: pmc: Move additionalProperties
dt-bindings: arm: tegra: pmc: Remove useless boilerplate descriptions
dt-bindings: arm: tegra: pmc: Improve property descriptions
Link: https://lore.kernel.org/r/20231013153723.1729109-3-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Improve audio clock accuracy on the RZ/{G2L,G2LC,V2L} SMARC EVK
development boards,
- Add FLASH support for the Renesas Bock-W development board,
- Add L2 cache and non-coherent DMA support on the RZ/Five SoC and the
RZ/Five SMARC development board,
- Add initial support for the RZ/G3S SoC and the RZ/G3S SMARC SoM and
SMARC Carrier-II EVK development boards,
- Add initial support for the R8A779F4 variant of the R-Car S4-8 SoC
and the R-Car S4 Starter Kit development board,
- Apply DT overlays to base DTBs to improve validation and usability.
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Merge tag 'renesas-dts-for-v6.7-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into soc/dt
Renesas DTS updates for v6.7 (take two)
- Improve audio clock accuracy on the RZ/{G2L,G2LC,V2L} SMARC EVK
development boards,
- Add FLASH support for the Renesas Bock-W development board,
- Add L2 cache and non-coherent DMA support on the RZ/Five SoC and the
RZ/Five SMARC development board,
- Add initial support for the RZ/G3S SoC and the RZ/G3S SMARC SoM and
SMARC Carrier-II EVK development boards,
- Add initial support for the R8A779F4 variant of the R-Car S4-8 SoC
and the R-Car S4 Starter Kit development board,
- Apply DT overlays to base DTBs to improve validation and usability.
* tag 'renesas-dts-for-v6.7-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel: (25 commits)
arm64: dts: renesas: Apply overlays to base dtbs
arm64: dts: renesas: rzg3s-smarc-som: Spelling s/device-type/device_type/
arm64: dts: renesas: r9a08g045: Add missing cache-level for L3 cache
arm64: dts: renesas: r9a08g045: Add nodes for SDHI1 and SDHI2
arm64: dts: renesas: ebisu: Document Ebisu-4D support
arm64: dts: renesas: Add R-Car S4 Starter Kit support
arm64: dts: renesas: Add Renesas R8A779F4 SoC support
arm64: dts: renesas: Add initial device tree for RZ/G3S SMARC EVK board
arm64: dts: renesas: Add initial device tree for RZ SMARC Carrier-II Board
arm64: dts: renesas: Add initial support for RZ/G3S SMARC SoM
arm64: dts: renesas: Add initial DTSI for RZ/G3S SoC
riscv: dts: renesas: rzfive-smarc: Enable the blocks which were explicitly disabled
riscv: dts: renesas: r9a07g043f: Add dma-noncoherent property
riscv: dts: renesas: r9a07g043f: Add L2 cache node
ARM: dts: renesas: bockw: Add FLASH node
arm64: dts: renesas: rz-smarc: Use versa3 clk for audio mclk
dt-bindings: clock: renesas,rzg2l-cpg: Document RZ/G3S SoC
clk: tegra: fix error return case for recalc_rate
clk: si521xx: Fix regmap write accessor
clk: si521xx: Use REGCACHE_FLAT instead of NONE
...
Link: https://lore.kernel.org/r/cover.1697200123.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
