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12 daysperf test: Move PERF_SAMPLE_WEIGHT_STRUCT parsing to common testIan Rogers
test__x86_sample_parsing is identical to test__sample_parsing except it explicitly tested PERF_SAMPLE_WEIGHT_STRUCT. Now the parsing code is common move the PERF_SAMPLE_WEIGHT_STRUCT to the common sample parsing test and remove the x86 version. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-22-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf sample: Remove arch notion of sample parsingIan Rogers
By definition arch sample parsing and synthesis will inhibit certain kinds of cross-platform record then analysis (report, script, etc.). Remove arch_perf_parse_sample_weight and arch_perf_synthesize_sample_weight replacing with a common implementation. Combine perf_sample p_stage_cyc and retire_lat as weight3 to capture the differing uses regardless of compiled for architecture. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-21-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf env: Remove global perf_envIan Rogers
The global perf_env was used for the host, but if a perf_env wasn't easy to come by it was used in a lot of places where potentially recorded and host data could be confused. Remove the global variable as now the majority of accesses retrieve the perf_env for the host from the session. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-20-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf trace: Avoid global perf_env with evsel__envIan Rogers
There is no session in perf trace unless in replay mode, so in host mode no session can be associated with the evlist. If the evsel__env call fails resort to the host_env that's part of the trace. Remove errno_to_name as it becomes a called once 1-line function once the argument is turned into a perf_env, just call perf_env__arch_strerrno directly. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-19-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf auxtrace: Pass perf_env from session through to mmap readIan Rogers
auxtrace_mmap__read and auxtrace_mmap__read_snapshot end up calling `evsel__env(NULL)` which returns the global perf_env variable for the host. Their only call is in perf record. Rather than use the global variable pass through the perf_env for `perf record`. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-18-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf machine: Explicitly pass in host perf_envIan Rogers
When creating a machine for the host explicitly pass in a scoped perf_env. This removes a use of the global perf_env. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-17-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf bench synthesize: Avoid use of global perf_envIan Rogers
The benchmark doesn't use a data file and so the header perf_env isn't used. Stack allocate a host perf_env for use to avoid the use of the global perf_env. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-16-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf top: Make perf_env locally scopedIan Rogers
The use of the global host perf_env variable is potentially inconsistent within the code. Switch perf top to using a locally scoped variable that is generally accessed through the session. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-15-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf session: Add host_env argument to perf_session__newIan Rogers
When creating a perf_session the host perf_env may or may not want to be used. For example, `perf top` uses a host perf_env while `perf inject` does not. Add a host_env argument to perf_session__new so that sessions requiring a host perf_env can pass it in. Currently if none is specified the global perf_env variable is used, but this will change in later patches. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-14-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf test: Avoid use perf_envIan Rogers
The perf_env global variable holds the host perf_env data but its use is hit and miss. Switch to using local perf_env variables and ensure scoped perf_env__init and perf_env__exit. This loses command line setting of the perf_env, but this doesn't matter for tests. So the perf_env is fully initialized, clear it with memset in perf_env__init. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-13-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf header: Clean up use of perf_envIan Rogers
Always use the perf_env from the feat_fd's perf_header. Cache the value on entry to a function in `env` and use `env->` consistently in the code. Ensure the header is initialized for use in perf_session__do_write_header. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-12-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf evlist: Change env variable to sessionIan Rogers
The session holds a perf_env pointer env. In UI code container_of is used to turn the env to a session, but this assumes the session header's env is in use. Rather than a dubious container_of, hold the session in the evlist and derive the env from the session with evsel__env, perf_session__env, etc. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-11-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf session: Add accessor for session->header.envIan Rogers
The perf_env from the header in the session is frequently accessed, add an accessor function rather than access directly. Cache the value to avoid repeated calls. No behavioral change. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-10-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf record: Make --buildid-mmap the defaultIan Rogers
Support for build IDs in mmap2 perf events has been present since Linux v5.12: https://lore.kernel.org/lkml/20210219194619.1780437-1-acme@kernel.org/ Build ID mmap events don't avoid the need to inject build IDs for DSO touched by samples as the build ID cache is populated by perf record. They can avoid some cases of symbol mis-resolution caused by the file system changing from when a sample occurred and when the DSO is sought. Unlike the --buildid-mmap option, this chnage doesn't disable the build ID cache but it does disable the processing of samples looking for DSOs to inject build IDs for. To disable the build ID cache the -B (--no-buildid) option should be used. Making this option the default was raised on the list in: https://lore.kernel.org/linux-perf-users/CAP-5=fXP7jN_QrGUcd55_QH5J-Y-FCaJ6=NaHVtyx0oyNh8_-Q@mail.gmail.com/ Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-9-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf jitdump: Directly mark the jitdump DSOIan Rogers
The DSO being generated was being accessed through a thread's maps, this is unnecessary as the dso can just be directly found. This avoids problems with passing a NULL evsel which may be inspected to determine properties of a callchain when using the buildid DSO marking code. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-8-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf dso: Move build_id to dso_idIan Rogers
The dso_id previously contained the major, minor, inode and inode generation information from a mmap2 event - the inode generation would be zero when reading from /proc/pid/maps. The build_id was in the dso. With build ID mmap2 events these fields wouldn't be initialized which would largely mean the special empty case where any dso would match for equality. This isn't desirable as if a dso is replaced we want the comparison to yield a difference. To support detecting the difference between DSOs based on build_id, move the build_id out of the DSO and into the dso_id. The dso_id is also stored in the DSO so nothing is lost. Capture in the dso_id what parts have been initialized and rename dso_id__inject to dso_id__improve_id so that it is clear the dso_id is being improved upon with additional information. With the build_id in the dso_id, use memcmp to compare for equality. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-7-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf build-id: Ensure struct build_id is empty before useIan Rogers
If a build ID is read then not all code paths may ensure it is empty before use. Initialize the build_id to be zero-ed unless there is clear initialization such as a call to build_id__init. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-6-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf build-id: Mark DSO in sample callchainsIan Rogers
Previously only the sample IP's map DSO would be marked hit for the purposes of populating the build ID cache. Walk the call chain to mark all IPs and DSOs. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-5-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysperf build-id: Change sprintf functions to snprintfIan Rogers
Pass in a size argument rather than implying all build id strings must be SBUILD_ID_SIZE. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250724163302.596743-4-irogers@google.com [ fixed some build errors ] Signed-off-by: Namhyung Kim <namhyung@kernel.org>
12 daysnet: Fix typosBjorn Helgaas
Fix typos in comments and error messages. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: David Arinzon <darinzon@amazon.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250723201528.2908218-1-helgaas@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
12 daysDocumentation/ABI/testing/debugfs-cxl: Add 'cxl' to clear_poison pathAlison Schofield
'cxl' is missing from the path to the clear_poison attribute. Add it. Signed-off-by: Alison Schofield <alison.schofield@intel.com> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Link: https://patch.msgid.link/20250724224308.2101255-1-alison.schofield@intel.com Signed-off-by: Dave Jiang <dave.jiang@intel.com>
12 daysselftests: netfilter: ipvs.sh: Explicity disable rp_filter on interface tunl0Yi Chen
Although setup_ns() set net.ipv4.conf.default.rp_filter=0, loading certain module such as ipip will automatically create a tunl0 interface in all netns including new created ones. In the script, this is before than default.rp_filter=0 applied, as a result tunl0.rp_filter remains set to 1 which causes the test report FAIL when ipip module is preloaded. Before fix: Testing DR mode... Testing NAT mode... Testing Tunnel mode... ipvs.sh: FAIL After fix: Testing DR mode... Testing NAT mode... Testing Tunnel mode... ipvs.sh: PASS Fixes: 7c8b89ec506e ("selftests: netfilter: remove rp_filter configuration") Signed-off-by: Yi Chen <yiche@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysselftests: netfilter: Ignore tainted kernels in interface stress testPhil Sutter
Complain about kernel taint value only if it wasn't set at start already. Fixes: 73db1b5dab6f ("selftests: netfilter: Torture nftables netdev hooks") Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: xt_nfacct: don't assume acct name is null-terminatedFlorian Westphal
BUG: KASAN: slab-out-of-bounds in .. lib/vsprintf.c:721 Read of size 1 at addr ffff88801eac95c8 by task syz-executor183/5851 [..] string+0x231/0x2b0 lib/vsprintf.c:721 vsnprintf+0x739/0xf00 lib/vsprintf.c:2874 [..] nfacct_mt_checkentry+0xd2/0xe0 net/netfilter/xt_nfacct.c:41 xt_check_match+0x3d1/0xab0 net/netfilter/x_tables.c:523 nfnl_acct_find_get() handles non-null input, but the error printk relied on its presence. Reported-by: syzbot+4ff165b9251e4d295690@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=4ff165b9251e4d295690 Tested-by: syzbot+4ff165b9251e4d295690@syzkaller.appspotmail.com Fixes: ceb98d03eac5 ("netfilter: xtables: add nfacct match to support extended accounting") Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: nft_set_pipapo: prefer kvmalloc for scratch mapsFlorian Westphal
The scratchmap size depends on the number of elements in the set. For huge sets, each scratch map can easily require very large allocations, e.g. for 100k entries each scratch map will require close to 64kbyte of memory. Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: nft_set_pipapo: merge pipapo_get/lookupFlorian Westphal
The matching algorithm has implemented thrice: 1. data path lookup, generic version 2. data path lookup, avx2 version 3. control plane lookup Merge 1 and 3 by refactoring pipapo_get as a common helper, then make nft_pipapo_lookup and nft_pipapo_get both call the common helper. Aside from the code savings this has the benefit that we no longer allocate temporary scratch maps for each control plane get and insertion operation. Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: nft_set: remove indirection from update API callFlorian Westphal
This stems from a time when sets and nft_dynset resided in different kernel modules. We can replace this with a direct call. We could even remove both ->update and ->delete, given its only supported by rhashtable, but on the off-chance we'll see runtime add/delete for other types or a new set type keep that as-is for now. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: nft_set: remove one argument from lookup and update functionsFlorian Westphal
Return the extension pointer instead of passing it as a function argument to be filled in by the callee. As-is, whenever false is returned, the extension pointer is not used. For all set types, when true is returned, the extension pointer was set to the matching element. Only exception: nft_set_bitmap doesn't support extensions. Return a pointer to a static const empty element extension container. return false -> return NULL return true -> return the elements' extension pointer. This saves one function argument. Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: nft_set_pipapo: remove unused argumentsFlorian Westphal
They are not used anymore, so remove them. Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: nfnetlink_hook: Dump flowtable infoPhil Sutter
Introduce NFNL_HOOK_TYPE_NFT_FLOWTABLE to distinguish flowtable hooks from base chain ones. Nested attributes are shared with the old NFTABLES hook info type since they fit apart from their misleading name. Old nftables in user space will ignore this new hook type and thus continue to print flowtable hooks just like before, e.g.: | family netdev { | hook ingress device test0 { | 0000000000 nf_flow_offload_ip_hook [nf_flow_table] | } | } With this patch in place and support for the new hook info type, output becomes more useful: | family netdev { | hook ingress device test0 { | 0000000000 flowtable ip mytable myft [nf_flow_table] | } | } Suggested-by: Florian Westphal <fw@strlen.de> Signed-off-by: Phil Sutter <phil@nwl.cc> Reviewed-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: nfnetlink: New NFNLA_HOOK_INFO_DESC helperPhil Sutter
Introduce a helper routine adding the nested attribute for use by a second caller later. Note how this introduces cancelling of 'nest2' for categorical reasons. Since always followed by cancelling of the outer 'nest', it is technically not needed. Signed-off-by: Phil Sutter <phil@nwl.cc> Reviewed-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysipvs: Rename del_timer in comment in ip_vs_conn_expire_now()WangYuli
Commit 8fa7292fee5c ("treewide: Switch/rename to timer_delete[_sync]()") switched del_timer to timer_delete, but did not modify the comment for ip_vs_conn_expire_now(). Now fix it. Signed-off-by: WangYuli <wangyuli@uniontech.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysselftests: netfilter: Enable CONFIG_INET_SCTP_DIAGSebastian Andrzej Siewior
The config snippet specifies CONFIG_SCTP_DIAG. This was never an option. Replace CONFIG_SCTP_DIAG with the intended CONFIG_INET_SCTP_DIAG. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysselftests: net: Enable legacy netfilter legacy options.Florian Westphal
Some specified options rely on NETFILTER_XTABLES_LEGACY to be enabled. IP_NF_TARGET_TTL for instance depends on IP_NF_MANGLE which in turn depends on IP_NF_IPTABLES_LEGACY -> NETFILTER_XTABLES_LEGACY. Enable relevant iptables config options explicitly, this is needed to avoid breakage when symbols related to iptables-legacy will depend on NETFILTER_LEGACY resp. IP_TABLES_LEGACY. This also means that the classic tables (Kernel modules) will not be enabled by default, so enable them too. Signed-off-by: Florian Westphal <fw@strlen.de> [bigeasy: Split out the config bits from the main patch] Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: Exclude LEGACY TABLES on PREEMPT_RT.Pablo Neira Ayuso
The seqcount xt_recseq is used to synchronize the replacement of xt_table::private in xt_replace_table() against all readers such as ipt_do_table() To ensure that there is only one writer, the writing side disables bottom halves. The sequence counter can be acquired recursively. Only the first invocation modifies the sequence counter (signaling that a writer is in progress) while the following (recursive) writer does not modify the counter. The lack of a proper locking mechanism for the sequence counter can lead to live lock on PREEMPT_RT if the high prior reader preempts the writer. Additionally if the per-CPU lock on PREEMPT_RT is removed from local_bh_disable() then there is no synchronisation for the per-CPU sequence counter. The affected code is "just" the legacy netfilter code which is replaced by "netfilter tables". That code can be disabled without sacrificing functionality because everything is provided by the newer implementation. This will only requires the usage of the "-nft" tools instead of the "-legacy" ones. The long term plan is to remove the legacy code so lets accelerate the progress. Relax dependencies on iptables legacy, replace select with depends on, this should cause no harm to existing kernel configs and users can still toggle IP{6}_NF_IPTABLES_LEGACY in any case. Make EBTABLES_LEGACY, IPTABLES_LEGACY and ARPTABLES depend on NETFILTER_XTABLES_LEGACY. Hide xt_recseq and its users, xt_register_table() and xt_percpu_counter_alloc() behind NETFILTER_XTABLES_LEGACY. Let NETFILTER_XTABLES_LEGACY depend on !PREEMPT_RT. This will break selftest expecing the legacy options enabled and will be addressed in a following patch. Co-developed-by: Florian Westphal <fw@strlen.de> Co-developed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: conntrack: Remove unused net in nf_conntrack_double_lock()Yue Haibing
Since commit a3efd81205b1 ("netfilter: conntrack: move generation seqcnt out of netns_ct") this param is unused. Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Acked-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: nf_tables: Remove unused nft_reduce_is_readonly()Yue Haibing
Since commit 9e539c5b6d9c ("netfilter: nf_tables: disable expression reduction infra") this is unused. Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: x_tables: Remove unused functions xt_{in|out}name()Yue Haibing
Since commit 2173c519d5e9 ("audit: normalize NETFILTER_PKT") these are unused, so can be removed. Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: load nf_log_syslog on enabling nf_conntrack_log_invalidLance Yang
When no logger is registered, nf_conntrack_log_invalid fails to log invalid packets, leaving users unaware of actual invalid traffic. Improve this by loading nf_log_syslog, similar to how 'iptables -I FORWARD 1 -m conntrack --ctstate INVALID -j LOG' triggers it. Suggested-by: Florian Westphal <fw@strlen.de> Signed-off-by: Zi Li <zi.li@linux.dev> Signed-off-by: Lance Yang <lance.yang@linux.dev> Acked-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysnetfilter: conntrack: table full detailed loglvxiafei
Add the netns field in the "nf_conntrack: table full, dropping packet" log to help locate the specific netns when the table is full. Signed-off-by: lvxiafei <lvxiafei@sensetime.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
12 daysMerge patch series "can: kvaser_usb: Simplify identification of physical CAN ↵Marc Kleine-Budde
interfaces" Jimmy Assarsson <extja@kvaser.com> says: This patch series simplifies the process of identifying which network interface (can0..canX) corresponds to which physical CAN channel on Kvaser USB based CAN interfaces. Note that this patch series is based on [1] "can: kvaser_pciefd: Simplify identification of physical CAN interfaces" Changes in v3: - Fix GCC compiler array warning (-Warray-bounds) - Fix transient Sparse warning - Add tag Reviewed-by Vincent Mailhol Changes in v2: - New patch with devlink documentation - New patch assigning netdev.dev_port - Formatting and refactoring [1] https://lore.kernel.org/linux-can/20250725123230.8-1-extja@kvaser.com Link: https://patch.msgid.link/20250725123452.41-1-extja@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
12 daysDocumentation: devlink: add devlink documentation for the kvaser_usb driverJimmy Assarsson
List the version information reported by the kvaser_usb driver through devlink. Suggested-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Jimmy Assarsson <extja@kvaser.com> Link: https://patch.msgid.link/20250725123452.41-12-extja@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
12 dayscan: kvaser_usb: Add devlink port supportJimmy Assarsson
Register each CAN channel of the device as an devlink physical port. This makes it easier to get device information for a given network interface (i.e. can2). Example output: $ devlink dev usb/1-1.3:1.0 $ devlink port usb/1-1.3:1.0/0: type eth netdev can0 flavour physical port 0 splittable false usb/1-1.3:1.0/1: type eth netdev can1 flavour physical port 1 splittable false $ devlink port show can1 usb/1-1.3:1.0/1: type eth netdev can1 flavour physical port 0 splittable false $ devlink dev info usb/1-1.3:1.0: driver kvaser_usb serial_number 1020 versions: fixed: board.rev 1 board.id 7330130009653 running: fw 3.22.527 $ ethtool -i can1 driver: kvaser_usb version: 6.12.10-arch1-1 firmware-version: 3.22.527 expansion-rom-version: bus-info: 1-1.3:1.0 supports-statistics: no supports-test: no supports-eeprom-access: no supports-register-dump: no supports-priv-flags: no Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Jimmy Assarsson <extja@kvaser.com> Link: https://patch.msgid.link/20250725123452.41-11-extja@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
12 dayscan: kvaser_usb: Expose device information via devlink info_get()Jimmy Assarsson
Expose device information via devlink info_get(): * Serial number * Firmware version * Hardware revision * EAN (product number) Example output: $ devlink dev usb/1-1.2:1.0 $ devlink dev info usb/1-1.2:1.0: driver kvaser_usb serial_number 1020 versions: fixed: board.rev 1 board.id 7330130009653 running: fw 3.22.527 Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Jimmy Assarsson <extja@kvaser.com> Link: https://patch.msgid.link/20250725123452.41-10-extja@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
12 dayscan: kvaser_usb: Add devlink supportJimmy Assarsson
Add devlink support at device level. Example output: $ devlink dev usb/1-1.3:1.0 $ devlink dev info usb/1-1.3:1.0: driver kvaser_usb Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Jimmy Assarsson <extja@kvaser.com> Link: https://patch.msgid.link/20250725123452.41-9-extja@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
12 dayscan: kvaser_usb: Store additional device informationJimmy Assarsson
Store additional device information; EAN (product number), serial_number and hardware revision. Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Jimmy Assarsson <extja@kvaser.com> Link: https://patch.msgid.link/20250725123452.41-8-extja@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
12 dayscan: kvaser_usb: Store the different firmware version components in a structJimmy Assarsson
Store firmware version in kvaser_usb_fw_version struct, specifying the different components of the version number. And drop debug prinout of firmware version, since later patches will expose it via the devlink interface. Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Jimmy Assarsson <extja@kvaser.com> Link: https://patch.msgid.link/20250725123452.41-7-extja@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
12 dayscan: kvaser_usb: Move comment regarding max_tx_urbsJimmy Assarsson
Move comment regarding max_tx_urbs, to where the struct member is declared. Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Jimmy Assarsson <extja@kvaser.com> Link: https://patch.msgid.link/20250725123452.41-6-extja@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
12 dayscan: kvaser_usb: Add intermediate variablesJimmy Assarsson
Add intermediate variables, for readability and to simplify future patches. Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Jimmy Assarsson <extja@kvaser.com> Link: https://patch.msgid.link/20250725123452.41-5-extja@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
12 dayscan: kvaser_usb: Assign netdev.dev_port based on device channel indexJimmy Assarsson
Assign netdev.dev_port based on the device channel index, to indicate the port number of the network device. While this driver already uses netdev.dev_id for that purpose, dev_port is more appropriate. However, retain dev_id to avoid potential regressions. Fixes: 3e66d0138c05 ("can: populate netdev::dev_id for udev discrimination") Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Jimmy Assarsson <extja@kvaser.com> Link: https://patch.msgid.link/20250725123452.41-4-extja@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>