1
0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-01-17 12:00:35 +00:00

2897 Commits

Author SHA1 Message Date
Ulrich Weber
ba2f83eecd doc: tls: socket needs to be established to enable ulp
To enable TLS ulp socket needs to be in established state.
This was added in commit d91c3e17f75f ("net/tls: Only attach
to sockets in ESTABLISHED state"), in 2018.

Signed-off-by: Ulrich Weber <ulrich.weber@gmail.com>
Link: https://patch.msgid.link/20250626145618.15464-1-ulrich.weber@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-27 15:33:01 -07:00
Faisal Bukhari
302251f1fd Fix typo in marvell octeontx2 documentation
Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst
Fixes a spelling mistake: "funcionality" → "functionality".

Signed-off-by: Faisal Bukhari <faisalbukhari523@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2025-06-22 18:16:08 +01:00
Linus Torvalds
00c010e130 - The 11 patch series "Add folio_mk_pte()" from Matthew Wilcox
simplifies the act of creating a pte which addresses the first page in a
   folio and reduces the amount of plumbing which architecture must
   implement to provide this.
 
 - The 8 patch series "Misc folio patches for 6.16" from Matthew Wilcox
   is a shower of largely unrelated folio infrastructure changes which
   clean things up and better prepare us for future work.
 
 - The 3 patch series "memory,x86,acpi: hotplug memory alignment
   advisement" from Gregory Price adds early-init code to prevent x86 from
   leaving physical memory unused when physical address regions are not
   aligned to memory block size.
 
 - The 2 patch series "mm/compaction: allow more aggressive proactive
   compaction" from Michal Clapinski provides some tuning of the (sadly,
   hard-coded (more sadly, not auto-tuned)) thresholds for our invokation
   of proactive compaction.  In a simple test case, the reduction of a guest
   VM's memory consumption was dramatic.
 
 - The 8 patch series "Minor cleanups and improvements to swap freeing
   code" from Kemeng Shi provides some code cleaups and a small efficiency
   improvement to this part of our swap handling code.
 
 - The 6 patch series "ptrace: introduce PTRACE_SET_SYSCALL_INFO API"
   from Dmitry Levin adds the ability for a ptracer to modify syscalls
   arguments.  At this time we can alter only "system call information that
   are used by strace system call tampering, namely, syscall number,
   syscall arguments, and syscall return value.
 
   This series should have been incorporated into mm.git's "non-MM"
   branch, but I goofed.
 
 - The 3 patch series "fs/proc: extend the PAGEMAP_SCAN ioctl to report
   guard regions" from Andrei Vagin extends the info returned by the
   PAGEMAP_SCAN ioctl against /proc/pid/pagemap.  This permits CRIU to more
   efficiently get at the info about guard regions.
 
 - The 2 patch series "Fix parameter passed to page_mapcount_is_type()"
   from Gavin Shan implements that fix.  No runtime effect is expected
   because validate_page_before_insert() happens to fix up this error.
 
 - The 3 patch series "kernel/events/uprobes: uprobe_write_opcode()
   rewrite" from David Hildenbrand basically brings uprobe text poking into
   the current decade.  Remove a bunch of hand-rolled implementation in
   favor of using more current facilities.
 
 - The 3 patch series "mm/ptdump: Drop assumption that pxd_val() is u64"
   from Anshuman Khandual provides enhancements and generalizations to the
   pte dumping code.  This might be needed when 128-bit Page Table
   Descriptors are enabled for ARM.
 
 - The 12 patch series "Always call constructor for kernel page tables"
   from Kevin Brodsky "ensures that the ctor/dtor is always called for
   kernel pgtables, as it already is for user pgtables".  This permits the
   addition of more functionality such as "insert hooks to protect page
   tables".  This change does result in various architectures performing
   unnecesary work, but this is fixed up where it is anticipated to occur.
 
 - The 9 patch series "Rust support for mm_struct, vm_area_struct, and
   mmap" from Alice Ryhl adds plumbing to permit Rust access to core MM
   structures.
 
 - The 3 patch series "fix incorrectly disallowed anonymous VMA merges"
   from Lorenzo Stoakes takes advantage of some VMA merging opportunities
   which we've been missing for 15 years.
 
 - The 4 patch series "mm/madvise: batch tlb flushes for MADV_DONTNEED
   and MADV_FREE" from SeongJae Park optimizes process_madvise()'s TLB
   flushing.  Instead of flushing each address range in the provided iovec,
   we batch the flushing across all the iovec entries.  The syscall's cost
   was approximately halved with a microbenchmark which was designed to
   load this particular operation.
 
 - The 6 patch series "Track node vacancy to reduce worst case allocation
   counts" from Sidhartha Kumar makes the maple tree smarter about its node
   preallocation.  stress-ng mmap performance increased by single-digit
   percentages and the amount of unnecessarily preallocated memory was
   dramaticelly reduced.
 
 - The 3 patch series "mm/gup: Minor fix, cleanup and improvements" from
   Baoquan He removes a few unnecessary things which Baoquan noted when
   reading the code.
 
 - The 3 patch series ""Enhance sysfs handling for memory hotplug in
   weighted interleave" from Rakie Kim "enhances the weighted interleave
   policy in the memory management subsystem by improving sysfs handling,
   fixing memory leaks, and introducing dynamic sysfs updates for memory
   hotplug support".  Fixes things on error paths which we are unlikely to
   hit.
 
 - The 7 patch series "mm/damon: auto-tune DAMOS for NUMA setups
   including tiered memory" from SeongJae Park introduces new DAMOS quota
   goal metrics which eliminate the manual tuning which is required when
   utilizing DAMON for memory tiering.
 
 - The 5 patch series "mm/vmalloc.c: code cleanup and improvements" from
   Baoquan He provides cleanups and small efficiency improvements which
   Baoquan found via code inspection.
 
 - The 2 patch series "vmscan: enforce mems_effective during demotion"
   from Gregory Price "changes reclaim to respect cpuset.mems_effective
   during demotion when possible".  because "presently, reclaim explicitly
   ignores cpuset.mems_effective when demoting, which may cause the cpuset
   settings to violated." "This is useful for isolating workloads on a
   multi-tenant system from certain classes of memory more consistently."
 
 - The 2 patch series ""Clean up split_huge_pmd_locked() and remove
   unnecessary folio pointers" from Gavin Guo provides minor cleanups and
   efficiency gains in in the huge page splitting and migrating code.
 
 - The 3 patch series "Use kmem_cache for memcg alloc" from Huan Yang
   creates a slab cache for `struct mem_cgroup', yielding improved memory
   utilization.
 
 - The 4 patch series "add max arg to swappiness in memory.reclaim and
   lru_gen" from Zhongkun He adds a new "max" argument to the "swappiness="
   argument for memory.reclaim MGLRU's lru_gen.  This directs proactive
   reclaim to reclaim from only anon folios rather than file-backed folios.
 
 - The 17 patch series "kexec: introduce Kexec HandOver (KHO)" from Mike
   Rapoport is the first step on the path to permitting the kernel to
   maintain existing VMs while replacing the host kernel via file-based
   kexec.  At this time only memblock's reserve_mem is preserved.
 
 - The 7 patch series "mm: Introduce for_each_valid_pfn()" from David
   Woodhouse provides and uses a smarter way of looping over a pfn range.
   By skipping ranges of invalid pfns.
 
 - The 2 patch series "sched/numa: Skip VMA scanning on memory pinned to
   one NUMA node via cpuset.mems" from Libo Chen removes a lot of pointless
   VMA scanning when a task is pinned a single NUMA mode.  Dramatic
   performance benefits were seen in some real world cases.
 
 - The 2 patch series "JFS: Implement migrate_folio for
   jfs_metapage_aops" from Shivank Garg addresses a warning which occurs
   during memory compaction when using JFS.
 
 - The 4 patch series "move all VMA allocation, freeing and duplication
   logic to mm" from Lorenzo Stoakes moves some VMA code from kernel/fork.c
   into the more appropriate mm/vma.c.
 
 - The 6 patch series "mm, swap: clean up swap cache mapping helper" from
   Kairui Song provides code consolidation and cleanups related to the
   folio_index() function.
 
 - The 2 patch series "mm/gup: Cleanup memfd_pin_folios()" from Vishal
   Moola does that.
 
 - The 8 patch series "memcg: Fix test_memcg_min/low test failures" from
   Waiman Long addresses some bogus failures which are being reported by
   the test_memcontrol selftest.
 
 - The 3 patch series "eliminate mmap() retry merge, add .mmap_prepare
   hook" from Lorenzo Stoakes commences the deprecation of
   file_operations.mmap() in favor of the new
   file_operations.mmap_prepare().  The latter is more restrictive and
   prevents drivers from messing with things in ways which, amongst other
   problems, may defeat VMA merging.
 
 - The 4 patch series "memcg: decouple memcg and objcg stocks"" from
   Shakeel Butt decouples the per-cpu memcg charge cache from the objcg's
   one.  This is a step along the way to making memcg and objcg charging
   NMI-safe, which is a BPF requirement.
 
 - The 6 patch series "mm/damon: minor fixups and improvements for code,
   tests, and documents" from SeongJae Park is "yet another batch of
   miscellaneous DAMON changes.  Fix and improve minor problems in code,
   tests and documents."
 
 - The 7 patch series "memcg: make memcg stats irq safe" from Shakeel
   Butt converts memcg stats to be irq safe.  Another step along the way to
   making memcg charging and stats updates NMI-safe, a BPF requirement.
 
 - The 4 patch series "Let unmap_hugepage_range() and several related
   functions take folio instead of page" from Fan Ni provides folio
   conversions in the hugetlb code.
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Merge tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - "Add folio_mk_pte()" from Matthew Wilcox simplifies the act of
   creating a pte which addresses the first page in a folio and reduces
   the amount of plumbing which architecture must implement to provide
   this.

 - "Misc folio patches for 6.16" from Matthew Wilcox is a shower of
   largely unrelated folio infrastructure changes which clean things up
   and better prepare us for future work.

 - "memory,x86,acpi: hotplug memory alignment advisement" from Gregory
   Price adds early-init code to prevent x86 from leaving physical
   memory unused when physical address regions are not aligned to memory
   block size.

 - "mm/compaction: allow more aggressive proactive compaction" from
   Michal Clapinski provides some tuning of the (sadly, hard-coded (more
   sadly, not auto-tuned)) thresholds for our invokation of proactive
   compaction. In a simple test case, the reduction of a guest VM's
   memory consumption was dramatic.

 - "Minor cleanups and improvements to swap freeing code" from Kemeng
   Shi provides some code cleaups and a small efficiency improvement to
   this part of our swap handling code.

 - "ptrace: introduce PTRACE_SET_SYSCALL_INFO API" from Dmitry Levin
   adds the ability for a ptracer to modify syscalls arguments. At this
   time we can alter only "system call information that are used by
   strace system call tampering, namely, syscall number, syscall
   arguments, and syscall return value.

   This series should have been incorporated into mm.git's "non-MM"
   branch, but I goofed.

 - "fs/proc: extend the PAGEMAP_SCAN ioctl to report guard regions" from
   Andrei Vagin extends the info returned by the PAGEMAP_SCAN ioctl
   against /proc/pid/pagemap. This permits CRIU to more efficiently get
   at the info about guard regions.

 - "Fix parameter passed to page_mapcount_is_type()" from Gavin Shan
   implements that fix. No runtime effect is expected because
   validate_page_before_insert() happens to fix up this error.

 - "kernel/events/uprobes: uprobe_write_opcode() rewrite" from David
   Hildenbrand basically brings uprobe text poking into the current
   decade. Remove a bunch of hand-rolled implementation in favor of
   using more current facilities.

 - "mm/ptdump: Drop assumption that pxd_val() is u64" from Anshuman
   Khandual provides enhancements and generalizations to the pte dumping
   code. This might be needed when 128-bit Page Table Descriptors are
   enabled for ARM.

 - "Always call constructor for kernel page tables" from Kevin Brodsky
   ensures that the ctor/dtor is always called for kernel pgtables, as
   it already is for user pgtables.

   This permits the addition of more functionality such as "insert hooks
   to protect page tables". This change does result in various
   architectures performing unnecesary work, but this is fixed up where
   it is anticipated to occur.

 - "Rust support for mm_struct, vm_area_struct, and mmap" from Alice
   Ryhl adds plumbing to permit Rust access to core MM structures.

 - "fix incorrectly disallowed anonymous VMA merges" from Lorenzo
   Stoakes takes advantage of some VMA merging opportunities which we've
   been missing for 15 years.

 - "mm/madvise: batch tlb flushes for MADV_DONTNEED and MADV_FREE" from
   SeongJae Park optimizes process_madvise()'s TLB flushing.

   Instead of flushing each address range in the provided iovec, we
   batch the flushing across all the iovec entries. The syscall's cost
   was approximately halved with a microbenchmark which was designed to
   load this particular operation.

 - "Track node vacancy to reduce worst case allocation counts" from
   Sidhartha Kumar makes the maple tree smarter about its node
   preallocation.

   stress-ng mmap performance increased by single-digit percentages and
   the amount of unnecessarily preallocated memory was dramaticelly
   reduced.

 - "mm/gup: Minor fix, cleanup and improvements" from Baoquan He removes
   a few unnecessary things which Baoquan noted when reading the code.

 - ""Enhance sysfs handling for memory hotplug in weighted interleave"
   from Rakie Kim "enhances the weighted interleave policy in the memory
   management subsystem by improving sysfs handling, fixing memory
   leaks, and introducing dynamic sysfs updates for memory hotplug
   support". Fixes things on error paths which we are unlikely to hit.

 - "mm/damon: auto-tune DAMOS for NUMA setups including tiered memory"
   from SeongJae Park introduces new DAMOS quota goal metrics which
   eliminate the manual tuning which is required when utilizing DAMON
   for memory tiering.

 - "mm/vmalloc.c: code cleanup and improvements" from Baoquan He
   provides cleanups and small efficiency improvements which Baoquan
   found via code inspection.

 - "vmscan: enforce mems_effective during demotion" from Gregory Price
   changes reclaim to respect cpuset.mems_effective during demotion when
   possible. because presently, reclaim explicitly ignores
   cpuset.mems_effective when demoting, which may cause the cpuset
   settings to violated.

   This is useful for isolating workloads on a multi-tenant system from
   certain classes of memory more consistently.

 - "Clean up split_huge_pmd_locked() and remove unnecessary folio
   pointers" from Gavin Guo provides minor cleanups and efficiency gains
   in in the huge page splitting and migrating code.

 - "Use kmem_cache for memcg alloc" from Huan Yang creates a slab cache
   for `struct mem_cgroup', yielding improved memory utilization.

 - "add max arg to swappiness in memory.reclaim and lru_gen" from
   Zhongkun He adds a new "max" argument to the "swappiness=" argument
   for memory.reclaim MGLRU's lru_gen.

   This directs proactive reclaim to reclaim from only anon folios
   rather than file-backed folios.

 - "kexec: introduce Kexec HandOver (KHO)" from Mike Rapoport is the
   first step on the path to permitting the kernel to maintain existing
   VMs while replacing the host kernel via file-based kexec. At this
   time only memblock's reserve_mem is preserved.

 - "mm: Introduce for_each_valid_pfn()" from David Woodhouse provides
   and uses a smarter way of looping over a pfn range. By skipping
   ranges of invalid pfns.

 - "sched/numa: Skip VMA scanning on memory pinned to one NUMA node via
   cpuset.mems" from Libo Chen removes a lot of pointless VMA scanning
   when a task is pinned a single NUMA mode.

   Dramatic performance benefits were seen in some real world cases.

 - "JFS: Implement migrate_folio for jfs_metapage_aops" from Shivank
   Garg addresses a warning which occurs during memory compaction when
   using JFS.

 - "move all VMA allocation, freeing and duplication logic to mm" from
   Lorenzo Stoakes moves some VMA code from kernel/fork.c into the more
   appropriate mm/vma.c.

 - "mm, swap: clean up swap cache mapping helper" from Kairui Song
   provides code consolidation and cleanups related to the folio_index()
   function.

 - "mm/gup: Cleanup memfd_pin_folios()" from Vishal Moola does that.

 - "memcg: Fix test_memcg_min/low test failures" from Waiman Long
   addresses some bogus failures which are being reported by the
   test_memcontrol selftest.

 - "eliminate mmap() retry merge, add .mmap_prepare hook" from Lorenzo
   Stoakes commences the deprecation of file_operations.mmap() in favor
   of the new file_operations.mmap_prepare().

   The latter is more restrictive and prevents drivers from messing with
   things in ways which, amongst other problems, may defeat VMA merging.

 - "memcg: decouple memcg and objcg stocks"" from Shakeel Butt decouples
   the per-cpu memcg charge cache from the objcg's one.

   This is a step along the way to making memcg and objcg charging
   NMI-safe, which is a BPF requirement.

 - "mm/damon: minor fixups and improvements for code, tests, and
   documents" from SeongJae Park is yet another batch of miscellaneous
   DAMON changes. Fix and improve minor problems in code, tests and
   documents.

 - "memcg: make memcg stats irq safe" from Shakeel Butt converts memcg
   stats to be irq safe. Another step along the way to making memcg
   charging and stats updates NMI-safe, a BPF requirement.

 - "Let unmap_hugepage_range() and several related functions take folio
   instead of page" from Fan Ni provides folio conversions in the
   hugetlb code.

* tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (285 commits)
  mm: pcp: increase pcp->free_count threshold to trigger free_high
  mm/hugetlb: convert use of struct page to folio in __unmap_hugepage_range()
  mm/hugetlb: refactor __unmap_hugepage_range() to take folio instead of page
  mm/hugetlb: refactor unmap_hugepage_range() to take folio instead of page
  mm/hugetlb: pass folio instead of page to unmap_ref_private()
  memcg: objcg stock trylock without irq disabling
  memcg: no stock lock for cpu hot-unplug
  memcg: make __mod_memcg_lruvec_state re-entrant safe against irqs
  memcg: make count_memcg_events re-entrant safe against irqs
  memcg: make mod_memcg_state re-entrant safe against irqs
  memcg: move preempt disable to callers of memcg_rstat_updated
  memcg: memcg_rstat_updated re-entrant safe against irqs
  mm: khugepaged: decouple SHMEM and file folios' collapse
  selftests/eventfd: correct test name and improve messages
  alloc_tag: check mem_profiling_support in alloc_tag_init
  Docs/damon: update titles and brief introductions to explain DAMOS
  selftests/damon/_damon_sysfs: read tried regions directories in order
  mm/damon/tests/core-kunit: add a test for damos_set_filters_default_reject()
  mm/damon/paddr: remove unused variable, folio_list, in damon_pa_stat()
  mm/damon/sysfs-schemes: fix wrong comment on damons_sysfs_quota_goal_metric_strs
  ...
2025-05-31 15:44:16 -07:00
Alok Tiwari
6682bfc1b2 Doc: networking: Fix various typos in rds.rst
Corrected "sages" to "messages" in the bitmap allocation description.
Fixed "competed" to "completed" in the recv path datagram handling section.
Corrected "privatee" to "private" in the multipath RDS section.
Fixed "mutlipath" to "multipath" in the transport capabilities description.

These changes improve documentation clarity and maintain consistency.

Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Link: https://patch.msgid.link/20250522074413.3634446-1-alok.a.tiwari@oracle.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-27 12:17:39 +02:00
Paolo Abeni
fdb061195f ipsec-next-2025-05-23
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Merge tag 'ipsec-next-2025-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next

Steffen Klassert says:

====================
1) Remove some unnecessary strscpy_pad() size arguments.
   From Thorsten Blum.

2) Correct use of xso.real_dev on bonding offloads.
   Patchset from Cosmin Ratiu.

3) Add hardware offload configuration to XFRM_MSG_MIGRATE.
   From Chiachang Wang.

4) Refactor migration setup during cloning. This was
   done after the clone was created. Now it is done
   in the cloning function itself.
   From Chiachang Wang.

5) Validate assignment of maximal possible SEQ number.
   Prevent from setting to the maximum sequrnce number
   as this would cause for traffic drop.
   From Leon Romanovsky.

6) Prevent configuration of interface index when offload
   is used. Hardware can't handle this case.i
   From Leon Romanovsky.

7) Always use kfree_sensitive() for SA secret zeroization.
   From Zilin Guan.

ipsec-next-2025-05-23

* tag 'ipsec-next-2025-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next:
  xfrm: use kfree_sensitive() for SA secret zeroization
  xfrm: prevent configuration of interface index when offload is used
  xfrm: validate assignment of maximal possible SEQ number
  xfrm: Refactor migration setup during the cloning process
  xfrm: Migrate offload configuration
  bonding: Fix multiple long standing offload races
  bonding: Mark active offloaded xfrm_states
  xfrm: Add explicit dev to .xdo_dev_state_{add,delete,free}
  xfrm: Remove unneeded device check from validate_xmit_xfrm
  xfrm: Use xdo.dev instead of xdo.real_dev
  net/mlx5: Avoid using xso.real_dev unnecessarily
  xfrm: Remove unnecessary strscpy_pad() size arguments
====================

Link: https://patch.msgid.link/20250523075611.3723340-1-steffen.klassert@secunet.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-26 18:32:48 +02:00
Fan Gong
17fcb3dc12 hinic3: module initialization and tx/rx logic
This is [1/3] part of hinic3 Ethernet driver initial submission.
With this patch hinic3 is a valid kernel module but non-functional
driver.

The driver parts contained in this patch:
Module initialization.
PCI driver registration but with empty id_table.
Auxiliary driver registration.
Net device_ops registration but open/stop are empty stubs.
tx/rx logic.

All major data structures of the driver are fully introduced with the
code that uses them but without their initialization code that requires
management interface with the hw.

Co-developed-by: Xin Guo <guoxin09@huawei.com>
Signed-off-by: Xin Guo <guoxin09@huawei.com>
Signed-off-by: Fan Gong <gongfan1@huawei.com>
Co-developed-by: Gur Stavi <gur.stavi@huawei.com>
Signed-off-by: Gur Stavi <gur.stavi@huawei.com>
Link: https://patch.msgid.link/76a137ffdfe115c737c2c224f0c93b60ba53cc16.1747736586.git.gur.stavi@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-21 20:31:42 -07:00
Eric Dumazet
572be9bf9d tcp: increase tcp_rmem[2] to 32 MB
Last change to tcp_rmem[2] happened in 2012, in commit b49960a05e32
("tcp: change tcp_adv_win_scale and tcp_rmem[2]")

TCP performance on WAN is mostly limited by tcp_rmem[2] for receivers.

After this series improvements, it is time to increase the default.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250513193919.1089692-12-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-15 11:30:09 -07:00
Eric Dumazet
9ea3bfa61b tcp: increase tcp_limit_output_bytes default value to 4MB
Last change happened in 2018 with commit c73e5807e4f6
("tcp: tsq: no longer use limit_output_bytes for paced flows")

Modern NIC speeds got a 4x increase since then.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250513193919.1089692-10-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-15 11:30:09 -07:00
Jakub Kicinski
bebd7b2626 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.15-rc7).

Conflicts:

tools/testing/selftests/drivers/net/hw/ncdevmem.c
  97c4e094a4b2 ("tests/ncdevmem: Fix double-free of queue array")
  2f1a805f32ba ("selftests: ncdevmem: Implement devmem TCP TX")
https://lore.kernel.org/20250514122900.1e77d62d@canb.auug.org.au

Adjacent changes:

net/core/devmem.c
net/core/devmem.h
  0afc44d8cdf6 ("net: devmem: fix kernel panic when netlink socket close after module unload")
  bd61848900bf ("net: devmem: Implement TX path")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-15 11:28:30 -07:00
Lee Trager
82534f446d eth: fbnic: Add devlink dev flash support
Add support to update the CMRT and control firmware as well as the UEFI
driver on fbnic using devlink dev flash.

Make sure the shutdown / quiescence paths like suspend take the devlink
lock to prevent them from interrupting the FW flashing process.

Signed-off-by: Lee Trager <lee@trager.us>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250512190109.2475614-6-lee@trager.us
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-15 12:59:18 +02:00
Alper Ak
4abc1f14e2 documentation: networking: devlink: Fix a typo in devlink-trap.rst
Fix a typo in the documentation: "errorrs" -> "errors".

Signed-off-by: Alper Ak <alperyasinak1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250513092451.22387-1-alperyasinak1@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-14 18:51:58 -07:00
Vladimir Oltean
d5c17e3654 docs: networking: timestamping: improve stacked PHC sentence
The first paragraph makes no grammatical sense. I suppose a portion of
the intended sentece is missing: "[The challenge with ] stacked PHCs
(...) is that they uncover bugs".

Rephrase, and at the same time simplify the structure of the sentence a
little bit, it is not easy to follow.

Fixes: 94d9f78f4d64 ("docs: networking: timestamping: add section for stacked PHC devices")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Link: https://patch.msgid.link/20250512131751.320283-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-13 15:40:54 -07:00
Mina Almasry
383faec0fd net: enable driver support for netmem TX
Drivers need to make sure not to pass netmem dma-addrs to the
dma-mapping API in order to support netmem TX.

Add helpers and netmem_dma_*() helpers that enables special handling of
netmem dma-addrs that drivers can use.

Document in netmem.rst what drivers need to do to support netmem TX.

Signed-off-by: Mina Almasry <almasrymina@google.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250508004830.4100853-7-almasrymina@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-13 11:12:49 +02:00
Mina Almasry
17af8cc06a net: add devmem TCP TX documentation
Add documentation outlining the usage and details of the devmem TCP TX
API.

Signed-off-by: Mina Almasry <almasrymina@google.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250508004830.4100853-6-almasrymina@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-13 11:12:48 +02:00
Christoph Lameter (Ampere)
786d5cc2b9 Update Christoph's Email address and make it consistent
Use cl@gentwo.org throughout and remove the old email addresses.

Link: https://lkml.kernel.org/r/8b962f57-4d98-cbb0-cd82-b6ba456733e8@gentwo.org
Signed-off-by: Christoph Lameter <cl@gentwo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-12 23:50:31 -07:00
Jakub Kicinski
08906eacce Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2025-04-29 (igb, igc, ixgbe, idpf)

For igb:
Kurt Kanzenbach adds linking of IRQs and queues to NAPI instances and
adds persistent NAPI config. Lastly, he removes undesired IRQs that
occur while busy polling.

For igc:
Kurt Kanzenbach switches the Tx mode for MQPRIO offload to harmonize the
current implementation with TAPRIO.

For ixgbe:
Jedrzej adds separate ethtool ops for E610 devices to account for device
differences.

Slawomir adds devlink region support for E610 devices.

For idpf:
Mateusz assigns and utilizes the ptype field out of libeth_rqe_info.

Michal removes unreachable code.

* '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
  idpf: remove unreachable code from setting mailbox
  idpf: assign extracted ptype to struct libeth_rqe_info field
  ixgbe: devlink: add devlink region support for E610
  ixgbe: add E610 .set_phys_id() callback implementation
  ixgbe: apply different rules for setting FC on E610
  ixgbe: add support for ACPI WOL for E610
  ixgbe: create E610 specific ethtool_ops structure
  igc: Change Tx mode for MQPRIO offloading
  igc: Limit netdev_tc calls to MQPRIO
  igb: Get rid of spurious interrupts
  igb: Add support for persistent NAPI config
  igb: Link queues to NAPI instances
  igb: Link IRQs to NAPI instances
====================

Link: https://patch.msgid.link/20250429234651.3982025-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-01 17:51:31 -07:00
Jakub Kicinski
1f773970a7 netfilter pull request 25-04-29
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Merge tag 'nf-next-25-04-29' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next

Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

The following batch contains Netfilter updates for net-next:

1) Replace msecs_to_jiffies() by secs_to_jiffies(), from Easwar Hariharan.

2) Allow to compile xt_cgroup with cgroupsv2 support only,
   from Michal Koutny.

3) Prepare for sock_cgroup_classid() removal by wrapping it around
   ifdef, also from Michal Koutny.

4) Remove redundant pointer fetch on conntrack template, from Xuanqiang Luo.

5) Re-format one block in the tproxy documentation for consistency,
   from Chen Linxuan.

6) Expose set element count and type via netlink attributes,
   from Florian Westphal.

* tag 'nf-next-25-04-29' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
  netfilter: nf_tables: export set count and backend name to userspace
  docs: tproxy: fix formatting for nft code block
  netfilter: conntrack: Remove redundant NFCT_ALIGN call
  net: cgroup: Guard users of sock_cgroup_classid()
  netfilter: xt_cgroup: Make it independent from net_cls
  netfilter: xt_IDLETIMER: convert timeouts to secs_to_jiffies()
====================

Link: https://patch.msgid.link/20250428221254.3853-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-29 16:31:10 -07:00
Slawomir Mrozowicz
fe259a1bb2 ixgbe: devlink: add devlink region support for E610
Provide support for the following devlink cmds:
 -DEVLINK_CMD_REGION_GET
 -DEVLINK_CMD_REGION_NEW
 -DEVLINK_CMD_REGION_DEL
 -DEVLINK_CMD_REGION_READ

ixgbe devlink region implementation, similarly to the ice one,
lets user to create snapshots of content of Non Volatile Memory,
content of Shadow RAM, and capabilities of the device.

For both NVM and SRAM regions provide .read() handler to let user
read their contents without the need to create full snapshots.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Co-developed-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Bharath R <bharath.r@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2025-04-29 15:13:44 -07:00
MD Danish Anwar
0d15a26b24 net: ti: icssg-prueth: Add ICSSG FW Stats
The ICSSG firmware maintains set of stats called PA_STATS.
Currently the driver only dumps 4 stats. Add support for dumping more
stats.

The offset for different stats are defined as MACROs in icssg_switch_map.h
file. All the offsets are for Slice0. Slice1 offsets are slice0 + 4.
The offset calculation is taken care while reading the stats in
emac_update_hardware_stats().

The statistics are documented in
Documentation/networking/device_drivers/icssg_prueth.rst

Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Link: https://patch.msgid.link/20250424095316.2643573-1-danishanwar@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-28 17:20:53 -07:00
Chen Linxuan
149a133a54 docs: tproxy: fix formatting for nft code block
The nft command snippet for redirecting traffic isn't formatted
in a literal code block like the rest of snippets.
Fix the formatting inconsistency.

Signed-off-by: Chen Linxuan <chenlinxuan@uniontech.com>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-04-29 00:00:26 +02:00
Dr. David Alan Gilbert
39144062ea rxrpc: Remove deadcode
Remove three functions that are no longer used.

rxrpc_get_txbuf() last use was removed by 2020's
commit 5e6ef4f1017c ("rxrpc: Make the I/O thread take over the call and
local processor work")

rxrpc_kernel_get_epoch() last use was removed by 2020's
commit 44746355ccb1 ("afs: Don't get epoch from a server because it may be
ambiguous")

rxrpc_kernel_set_max_life() last use was removed by 2023's
commit db099c625b13 ("rxrpc: Fix timeout of a call that hasn't yet been
granted a channel")

Both of the rxrpc_kernel_* functions were documented.  Remove that
documentation as well as the code.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Acked-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/20250422235147.146460-1-linux@treblig.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-24 17:03:45 -07:00
Jakub Kicinski
22cbc1ee26 netdev: fix the locking for netdev notifications
Kuniyuki reports that the assert for netdev lock fires when
there are netdev event listeners (otherwise we skip the netlink
event generation).

Correct the locking when coming from the notifier.

The NETDEV_XDP_FEAT_CHANGE notifier is already fully locked,
it's the documentation that's incorrect.

Fixes: 99e44f39a8f7 ("netdev: depend on netdev->lock for xdp features")
Reported-by: syzkaller <syzkaller@googlegroups.com>
Reported-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/20250410171019.62128-1-kuniyu@amazon.com
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250416030447.1077551-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-17 18:55:14 -07:00
Jakub Kicinski
4e34a84061 Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:

====================
ixgbe: Add basic devlink support

Jedrzej Jagielski says:

Create devlink specific directory for more convenient future feature
development.

Flashing and reloading are supported only by E610 devices.

Introduce basic FW/NVM validation since devlink reload introduces
possibility of runtime NVM update. Check FW API version, FW recovery
mode and FW rollback mode. Introduce minimal recovery probe to let
user to reload the faulty FW when recovery mode is detected.

* '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
  ixgbe: add support for FW rollback mode
  ixgbe: add E610 implementation of FW recovery mode
  ixgbe: add FW API version check
  ixgbe: add support for devlink reload
  ixgbe: add device flash update via devlink
  ixgbe: extend .info_get() with stored versions
  ixgbe: add E610 functions getting PBA and FW ver info
  ixgbe: add .info_get extension specific for E610 devices
  ixgbe: read the netlist version information
  ixgbe: read the OROM version information
  ixgbe: add E610 functions for acquiring flash data
  ixgbe: add handler for devlink .info_get()
  ixgbe: add initial devlink support
  ixgbe: wrap netdev_priv() usage
  devlink: add value check to devlink_info_version_put()
====================

Link: https://patch.msgid.link/20250415221301.1633933-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-16 19:05:21 -07:00
Jakub Kicinski
49593c298c docs: networking: clarify intended audience of netdevices.rst
The netdevices doc is dangerously broad. At least make it clear
that it's intended for developers, not for users.

Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250415172653.811147-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-16 18:30:14 -07:00
Cosmin Ratiu
43eca05b6a xfrm: Add explicit dev to .xdo_dev_state_{add,delete,free}
Previously, device driver IPSec offload implementations would fall into
two categories:
1. Those that used xso.dev to determine the offload device.
2. Those that used xso.real_dev to determine the offload device.

The first category didn't work with bonding while the second did.
In a non-bonding setup the two pointers are the same.

This commit adds explicit pointers for the offload netdevice to
.xdo_dev_state_add() / .xdo_dev_state_delete() / .xdo_dev_state_free()
which eliminates the confusion and allows drivers from the first
category to work with bonding.

xso.real_dev now becomes a private pointer managed by the bonding
driver.

Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2025-04-16 11:01:41 +02:00
Jedrzej Jagielski
c9e563cae1 ixgbe: add support for devlink reload
The E610 adapters contain an embedded chip with firmware which can be
updated using devlink flash. The firmware which runs on this chip is
referred to as the Embedded Management Processor firmware (EMP
firmware).

Activating the new firmware image currently requires that the system be
rebooted. This is not ideal as rebooting the system can cause unwanted
downtime.

The EMP firmware itself can be reloaded by issuing a special update
to the device called an Embedded Management Processor reset (EMP
reset). This reset causes the device to reset and reload the EMP
firmware.

Implement support for devlink reload with the "fw_activate" flag. This
allows user space to request the firmware be activated immediately.

Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Tested-by: Bharath R <bharath.r@intel.com>
Co-developed-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Co-developed-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
Signed-off-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
Co-developed-by: Stefan Wegrzyn <stefan.wegrzyn@intel.com>
Signed-off-by: Stefan Wegrzyn <stefan.wegrzyn@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2025-04-15 07:36:33 -07:00
Jedrzej Jagielski
a0f45672d5 ixgbe: add device flash update via devlink
Use the pldmfw library to implement device flash update for
the Intel ixgbe networking device driver specifically for E610 devices.
This support uses the devlink flash update interface.

Using the pldmfw library, the provided firmware file will be scanned for
the three major components, "fw.undi" for the Option ROM, "fw.mgmt" for
the main NVM module containing the primary device firmware, and
"fw.netlist" containing the netlist module.

The flash is separated into two banks, the active bank containing the
running firmware, and the inactive bank which we use for update. Each
module is updated in a staged process. First, the inactive bank is
erased, preparing the device for update. Second, the contents of the
component are copied to the inactive portion of the flash. After all
components are updated, the driver signals the device to switch the
active bank during the next EMP reset.

With this implementation, basic flash update for the E610 hardware is
supported.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Bharath R <bharath.r@intel.com>
Co-developed-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Co-developed-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
Signed-off-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
Co-developed-by: Stefan Wegrzyn <stefan.wegrzyn@intel.com>
Signed-off-by: Stefan Wegrzyn <stefan.wegrzyn@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2025-04-15 07:36:32 -07:00
Jedrzej Jagielski
8210ff7380 ixgbe: add .info_get extension specific for E610 devices
E610 devices give possibility to show more detailed info than the previous
boards.
Extend reporting NVM info with following pieces:
 fw.mgmt.api -> version number of the API
 fw.mgmt.build -> identifier of the source for the FW
 fw.mgmt.srev -> number defining FW's security revision
 fw.psid.api -> version defining the format of the flash contents
 fw.undi.srev -> number defining OROM's security revision
 fw.netlist -> version of the netlist module
 fw.netlist.build -> first 4 bytes of the netlist hash

Co-developed-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Co-developed-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
Signed-off-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2025-04-15 07:36:32 -07:00
Jedrzej Jagielski
f6b588af3d ixgbe: add handler for devlink .info_get()
Provide devlink .info_get() callback implementation to allow the
driver to report detailed version information. The following info
is reported:

 "serial_number" -> The PCI DSN of the adapter
 "fw.bundle_id" -> Unique identifier for the combined flash image
 "fw.undi" -> Version of the Option ROM containing the UEFI driver
 "board.id" -> The PBA ID string

Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Tested-by: Bharath R <bharath.r@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2025-04-15 07:36:32 -07:00
Jedrzej Jagielski
a0285236ab ixgbe: add initial devlink support
Add an initial support for devlink interface to ixgbe driver.

Similarly to i40e driver the implementation doesn't enable
devlink to manage device-wide configuration. Devlink instance
is created for each physical function of PCIe device.

Create separate directory for devlink related ixgbe files
and use naming scheme similar to the one used in the ice driver.

Add a stub for Documentation, to be extended by further patches.

Change struct ixgbe_adapter allocation to be done by devlink (Przemek),
as suggested by Jiri.

Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Co-developed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Tested-by: Bharath R <bharath.r@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2025-04-15 07:36:32 -07:00
Mohsin Bashir
f2957147ae eth: fbnic: add support for TTI HW stats
Add coverage for the TX Extension (TEI) Interface (TTI) stats. We are
tracking packets and control message drops because of credit exhaustion
on the TX interface.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Mohsin Bashir <mohsin.bashr@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250410070859.4160768-6-mohsin.bashr@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-15 11:23:13 +02:00
Mohsin Bashir
5f8bd2ce82 eth: fbnic: add support for TMI stats
This patch add coverage for TMI stats including PTP stats and drop
stats.

PTP stats include illegal requests, bad timestamp and good timestamps.
The bad timestamp and illegal request counters are reported under as
`error` via `ethtool -T` Both these counters are individually being
reported via `ethtool -S`

The good timestamp stats are being reported as `pkts` via `ethtool -T`

ethtool -S eth0 | grep "ptp"
     ptp_illegal_req: 0
     ptp_good_ts: 0
     ptp_bad_ts: 0

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Mohsin Bashir <mohsin.bashr@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250410070859.4160768-5-mohsin.bashr@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-15 11:23:13 +02:00
Mohsin Bashir
986c63a029 eth: fbnic: add coverage for RXB stats
This patch provides coverage to the RXB (RX Buffer) stats. RXB stats
are divided into 3 sections: RXB enqueue, RXB FIFO, and RXB dequeue
stats.

The RXB enqueue/dequeue stats are indexed from 0-3 and cater for the
input/output counters whereas, the RXB fifo stats are indexed from 0-7.

The RXB also supports pause frame stats counters which we are leaving
for a later patch.

ethtool -S eth0 | grep rxb
     rxb_integrity_err0: 0
     rxb_mac_err0: 0
     rxb_parser_err0: 0
     rxb_frm_err0: 0
     rxb_drbo0_frames: 1433543
     rxb_drbo0_bytes: 775949081
     ---
     ---
     rxb_intf3_frames: 1195711
     rxb_intf3_bytes: 739650210
     rxb_pbuf3_frames: 1195711
     rxb_pbuf3_bytes: 765948092

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Mohsin Bashir <mohsin.bashr@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250410070859.4160768-4-mohsin.bashr@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-15 11:23:13 +02:00
Mohsin Bashir
8f20a2bfa4 eth: fbnic: add coverage for hw queue stats
This patch provides support for hardware queue stats and covers
packet errors for RX-DMA engine, RCQ drops and BDQ drops.

The packet errors are also aggregated with the `rx_errors` stats in the
`rtnl_link_stats` as well as with the `hw_drops` in the queue API.

The RCQ and BDQ drops are aggregated with `rx_over_errors` in the
`rtnl_link_stats` as well as with the `hw_drop_overruns` in the queue API.

ethtool -S eth0 | grep -E 'rde'
     rde_0_pkt_err: 0
     rde_0_pkt_cq_drop: 0
     rde_0_pkt_bdq_drop: 0
     ---
     ---
     rde_127_pkt_err: 0
     rde_127_pkt_cq_drop: 0
     rde_127_pkt_bdq_drop: 0

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Mohsin Bashir <mohsin.bashr@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250410070859.4160768-3-mohsin.bashr@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-15 11:23:13 +02:00
David Howells
d03539d5c2 rxrpc: Display security params in the afs_cb_call tracepoint
Make the afs_cb_call tracepoint display some security parameters to make
debugging easier.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
Link: https://patch.msgid.link/20250411095303.2316168-12-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-14 17:36:42 -07:00
David Howells
9d1d2b5934 rxrpc: rxgk: Implement the yfs-rxgk security class (GSSAPI)
Implement the basic parts of the yfs-rxgk security class (security index 6)
to support GSSAPI-negotiated security.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Herbert Xu <herbert@gondor.apana.org.au>
cc: Chuck Lever <chuck.lever@oracle.com>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
Link: https://patch.msgid.link/20250411095303.2316168-9-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-14 17:36:42 -07:00
David Howells
5800b1cf3f rxrpc: Allow CHALLENGEs to the passed to the app for a RESPONSE
Allow the app to request that CHALLENGEs be passed to it through an
out-of-band queue that allows recvmsg() to pick it up so that the app can
add data to it with sendmsg().

This will allow the application (AFS or userspace) to interact with the
process if it wants to and put values into user-defined fields.  This will
be used by AFS when talking to a fileserver to supply that fileserver with
a crypto key by which callback RPCs can be encrypted (ie. notifications
from the fileserver to the client).

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
Link: https://patch.msgid.link/20250411095303.2316168-5-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-14 17:36:41 -07:00
David Howells
28a79fc9b0 rxrpc: kdoc: Update function descriptions and add link from rxrpc.rst
Update the kerneldoc function descriptions to add "Return:" sections for
AF_RXRPC exported functions that have return values to stop the kdoc
builder from throwing warnings.

Also add links from the rxrpc.rst API doc to add a function API reference
at the end.  (Note that the API doc really needs updating, but that's
beyond this patchset).

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
Link: https://patch.msgid.link/20250411095303.2316168-2-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-14 17:36:40 -07:00
Jakub Kicinski
097f171f98 net: convert dev->rtnl_link_state to a bool
netdevice reg_state was split into two 16 bit enums back in 2010
in commit a2835763e130 ("rtnetlink: handle rtnl_link netlink
notifications manually"). Since the split the fields have been
moved apart, and last year we converted reg_state to a normal
u8 in commit 4d42b37def70 ("net: convert dev->reg_state to u8").

rtnl_link_state being a 16 bitfield makes no sense. Convert it
to a single bool, it seems very unlikely after 15 years that
we'll need more values in it.

We could drop dev->rtnl_link_ops from the conditions but feels
like having it there more clearly points at the reason for this
hack.

Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250410014246.780885-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-14 14:29:54 -07:00
Kuniyuki Iwashima
2a63dd0edf net: Retire DCCP socket.
DCCP was orphaned in 2021 by commit 054c4610bd05 ("MAINTAINERS: dccp:
move Gerrit Renker to CREDITS"), which noted that the last maintainer
had been inactive for five years.

In recent years, it has become a playground for syzbot, and most changes
to DCCP have been odd bug fixes triggered by syzbot.  Apart from that,
the only changes have been driven by treewide or networking API updates
or adjustments related to TCP.

Thus, in 2023, we announced we would remove DCCP in 2025 via commit
b144fcaf46d4 ("dccp: Print deprecation notice.").

Since then, only one individual has contacted the netdev mailing list. [0]

There is ongoing research for Multipath DCCP.  The repository is hosted
on GitHub [1], and development is not taking place through the upstream
community.  While the repository is published under the GPLv2 license,
the scheduling part remains proprietary, with a LICENSE file [2] stating:

  "This is not Open Source software."

The researcher mentioned a plan to address the licensing issue, upstream
the patches, and step up as a maintainer, but there has been no further
communication since then.

Maintaining DCCP for a decade without any real users has become a burden.

Therefore, it's time to remove it.

Removing DCCP will also provide significant benefits to TCP.  It allows
us to freely reorganize the layout of struct inet_connection_sock, which
is currently shared with DCCP, and optimize it to reduce the number of
cachelines accessed in the TCP fast path.

Note that we keep DCCP netfilter modules as requested.  [3]

Link: https://lore.kernel.org/netdev/20230710182253.81446-1-kuniyu@amazon.com/T/#u #[0]
Link: https://github.com/telekom/mp-dccp #[1]
Link: https://github.com/telekom/mp-dccp/blob/mpdccp_v03_k5.10/net/dccp/non_gpl_scheduler/LICENSE #[2]
Link: https://lore.kernel.org/netdev/Z_VQ0KlCRkqYWXa-@calendula/ #[3]
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Paul Moore <paul@paul-moore.com> (LSM and SELinux)
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Link: https://patch.msgid.link/20250410023921.11307-3-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-11 18:58:10 -07:00
Jiayuan Chen
c449d5f3a3 tcp: add LINUX_MIB_PAWS_TW_REJECTED counter
When TCP is in TIME_WAIT state, PAWS verification uses
LINUX_PAWSESTABREJECTED, which is ambiguous and cannot be distinguished
from other PAWS verification processes.

We added a new counter, like the existing PAWS_OLD_ACK one.

Also we update the doc with previously missing PAWS_OLD_ACK.

usage:
'''
nstat -az | grep PAWSTimewait
TcpExtPAWSTimewait              1                  0.0
'''

Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250409112614.16153-3-jiayuan.chen@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-10 18:29:26 -07:00
Jakub Kicinski
cb7103298d Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.15-rc2).

Conflict:

Documentation/networking/netdevices.rst
net/core/lock_debug.c
  04efcee6ef8d ("net: hold instance lock during NETDEV_CHANGE")
  03df156dd3a6 ("xdp: double protect netdev->xdp_flags with netdev->lock")

No adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-10 16:51:07 -07:00
Jakub Kicinski
ce7b149474 netdev: depend on netdev->lock for qstats in ops locked drivers
We mostly needed rtnl_lock in qstat to make sure the queue count
is stable while we work. For "ops locked" drivers the instance
lock protects the queue count, so we don't have to take rtnl_lock.

For currently ops-locked drivers: netdevsim and bnxt need
the protection from netdev going down while we dump, which
instance lock provides. gve doesn't care.

Reviewed-by: Joe Damato <jdamato@fastly.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250408195956.412733-9-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-09 17:01:52 -07:00
Jakub Kicinski
87eba404f2 docs: netdev: break down the instance locking info per ops struct
Explicitly list all the ops structs and what locking they provide.
Use "ops locked" as a term for drivers which have ops called under
the instance lock.

Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Link: https://patch.msgid.link/20250408195956.412733-8-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-09 17:01:52 -07:00
Jakub Kicinski
03df156dd3 xdp: double protect netdev->xdp_flags with netdev->lock
Protect xdp_features with netdev->lock. This way pure readers
no longer have to take rtnl_lock to access the field.

This includes calling NETDEV_XDP_FEAT_CHANGE under the lock.
Looks like that's fine for bonding, the only "real" listener,
it's the same as ethtool feature change.

In terms of normal drivers - only GVE need special consideration
(other drivers don't use instance lock or don't support XDP).
It calls xdp_set_features_flag() helper from gve_init_priv() which
in turn is called from gve_reset_recovery() (locked), or prior
to netdev registration. So switch to _locked.

Reviewed-by: Joe Damato <jdamato@fastly.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Acked-by: Harshitha Ramamurthy <hramamurthy@google.com>
Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20250408195956.412733-6-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-09 17:01:52 -07:00
Stanislav Fomichev
04efcee6ef net: hold instance lock during NETDEV_CHANGE
Cosmin reports an issue with ipv6_add_dev being called from
NETDEV_CHANGE notifier:

[ 3455.008776]  ? ipv6_add_dev+0x370/0x620
[ 3455.010097]  ipv6_find_idev+0x96/0xe0
[ 3455.010725]  addrconf_add_dev+0x1e/0xa0
[ 3455.011382]  addrconf_init_auto_addrs+0xb0/0x720
[ 3455.013537]  addrconf_notify+0x35f/0x8d0
[ 3455.014214]  notifier_call_chain+0x38/0xf0
[ 3455.014903]  netdev_state_change+0x65/0x90
[ 3455.015586]  linkwatch_do_dev+0x5a/0x70
[ 3455.016238]  rtnl_getlink+0x241/0x3e0
[ 3455.019046]  rtnetlink_rcv_msg+0x177/0x5e0

Similarly, linkwatch might get to ipv6_add_dev without ops lock:
[ 3456.656261]  ? ipv6_add_dev+0x370/0x620
[ 3456.660039]  ipv6_find_idev+0x96/0xe0
[ 3456.660445]  addrconf_add_dev+0x1e/0xa0
[ 3456.660861]  addrconf_init_auto_addrs+0xb0/0x720
[ 3456.661803]  addrconf_notify+0x35f/0x8d0
[ 3456.662236]  notifier_call_chain+0x38/0xf0
[ 3456.662676]  netdev_state_change+0x65/0x90
[ 3456.663112]  linkwatch_do_dev+0x5a/0x70
[ 3456.663529]  __linkwatch_run_queue+0xeb/0x200
[ 3456.663990]  linkwatch_event+0x21/0x30
[ 3456.664399]  process_one_work+0x211/0x610
[ 3456.664828]  worker_thread+0x1cc/0x380
[ 3456.665691]  kthread+0xf4/0x210

Reclassify NETDEV_CHANGE as a notifier that consistently runs under the
instance lock.

Link: https://lore.kernel.org/netdev/aac073de8beec3e531c86c101b274d434741c28e.camel@nvidia.com/
Reported-by: Cosmin Ratiu <cratiu@nvidia.com>
Tested-by: Cosmin Ratiu <cratiu@nvidia.com>
Fixes: ad7c7b2172c3 ("net: hold netdev instance lock during sysfs operations")
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250404161122.3907628-1-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-07 11:13:39 -07:00
Stanislav Fomichev
ee705fa21f docs: net: document netdev notifier expectations
We don't have a consistent state yet, but document where we think
we are and where we wanna be.

Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250401163452.622454-8-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-03 15:32:08 -07:00
Linus Torvalds
ca0b04ba0b for-6.15/io_uring-rx-zc-20250325
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Merge tag 'for-6.15/io_uring-rx-zc-20250325' of git://git.kernel.dk/linux

Pull io_uring zero-copy receive support from Jens Axboe:
 "This adds support for zero-copy receive with io_uring, enabling fast
  bulk receive of data directly into application memory, rather than
  needing to copy the data out of kernel memory.

  While this version only supports host memory as that was the initial
  target, other memory types are planned as well, with notably GPU
  memory coming next.

  This work depends on some networking components which were queued up
  on the networking side, but have now landed in your tree.

  This is the work of Pavel Begunkov and David Wei. From the v14 posting:

    'We configure a page pool that a driver uses to fill a hw rx queue
     to hand out user pages instead of kernel pages. Any data that ends
     up hitting this hw rx queue will thus be dma'd into userspace
     memory directly, without needing to be bounced through kernel
     memory. 'Reading' data out of a socket instead becomes a
     _notification_ mechanism, where the kernel tells userspace where
     the data is. The overall approach is similar to the devmem TCP
     proposal

     This relies on hw header/data split, flow steering and RSS to
     ensure packet headers remain in kernel memory and only desired
     flows hit a hw rx queue configured for zero copy. Configuring this
     is outside of the scope of this patchset.

     We share netdev core infra with devmem TCP. The main difference is
     that io_uring is used for the uAPI and the lifetime of all objects
     are bound to an io_uring instance. Data is 'read' using a new
     io_uring request type. When done, data is returned via a new shared
     refill queue. A zero copy page pool refills a hw rx queue from this
     refill queue directly. Of course, the lifetime of these data
     buffers are managed by io_uring rather than the networking stack,
     with different refcounting rules.

     This patchset is the first step adding basic zero copy support. We
     will extend this iteratively with new features e.g. dynamically
     allocated zero copy areas, THP support, dmabuf support, improved
     copy fallback, general optimisations and more'

  In a local setup, I was able to saturate a 200G link with a single CPU
  core, and at netdev conf 0x19 earlier this month, Jamal reported
  188Gbit of bandwidth using a single core (no HT, including soft-irq).

  Safe to say the efficiency is there, as bigger links would be needed
  to find the per-core limit, and it's considerably more efficient and
  faster than the existing devmem solution"

* tag 'for-6.15/io_uring-rx-zc-20250325' of git://git.kernel.dk/linux:
  io_uring/zcrx: add selftest case for recvzc with read limit
  io_uring/zcrx: add a read limit to recvzc requests
  io_uring: add missing IORING_MAP_OFF_ZCRX_REGION in io_uring_mmap
  io_uring: Rename KConfig to Kconfig
  io_uring/zcrx: fix leaks on failed registration
  io_uring/zcrx: recheck ifq on shutdown
  io_uring/zcrx: add selftest
  net: add documentation for io_uring zcrx
  io_uring/zcrx: add copy fallback
  io_uring/zcrx: throttle receive requests
  io_uring/zcrx: set pp memory provider for an rx queue
  io_uring/zcrx: add io_recvzc request
  io_uring/zcrx: dma-map area for the device
  io_uring/zcrx: implement zerocopy receive pp memory provider
  io_uring/zcrx: grab a net device
  io_uring/zcrx: add io_zcrx_area
  io_uring/zcrx: add interface queue and refill queue
2025-03-28 13:45:52 -07:00
Linus Torvalds
7b667acd69 powerpc updates for 6.15
- Removal of support for IBM Cell Blades
 
  - SMP support for microwatt platform
 
  - Support for inline static calls on PPC32
 
  - Enable pmu selftests for power11 platform
 
  - Enable hardware trace macro (HTM) hcall support
 
  - Support for limited address mode capability
 
  - Changes to RMA size from 512 MB to 768 MB to handle fadump
 
  - Misc fixes and cleanups
 
 Thanks to: Abhishek Dubey, Amit Machhiwal, Andreas Schwab, Arnd Bergmann,
 Athira Rajeev, Avnish Chouhan, Christophe Leroy, Disha Goel, Donet Tom, Gaurav
 Batra, Gautam Menghani, Hari Bathini, Kajol Jain, Kees Cook, Mahesh Salgaonkar,
 Michael Ellerman, Paul Mackerras, Ritesh Harjani (IBM), Sathvika Vasireddy,
 Segher Boessenkool, Sourabh Jain, Vaibhav Jain, Venkat Rao Bagalkote.
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Merge tag 'powerpc-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Madhavan Srinivasan:

 - Remove support for IBM Cell Blades

 - SMP support for microwatt platform

 - Support for inline static calls on PPC32

 - Enable pmu selftests for power11 platform

 - Enable hardware trace macro (HTM) hcall support

 - Support for limited address mode capability

 - Changes to RMA size from 512 MB to 768 MB to handle fadump

 - Misc fixes and cleanups

Thanks to Abhishek Dubey, Amit Machhiwal, Andreas Schwab, Arnd Bergmann,
Athira Rajeev, Avnish Chouhan, Christophe Leroy, Disha Goel, Donet Tom,
Gaurav Batra, Gautam Menghani, Hari Bathini, Kajol Jain, Kees Cook,
Mahesh Salgaonkar, Michael Ellerman, Paul Mackerras, Ritesh Harjani
(IBM), Sathvika Vasireddy, Segher Boessenkool, Sourabh Jain, Vaibhav
Jain, and Venkat Rao Bagalkote.

* tag 'powerpc-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (61 commits)
  powerpc/kexec: fix physical address calculation in clear_utlb_entry()
  crypto: powerpc: Mark ghashp8-ppc.o as an OBJECT_FILES_NON_STANDARD
  powerpc: Fix 'intra_function_call not a direct call' warning
  powerpc/perf: Fix ref-counting on the PMU 'vpa_pmu'
  KVM: PPC: Enable CAP_SPAPR_TCE_VFIO on pSeries KVM guests
  powerpc/prom_init: Fixup missing #size-cells on PowerBook6,7
  powerpc/microwatt: Add SMP support
  powerpc: Define config option for processors with broadcast TLBIE
  powerpc/microwatt: Define an idle power-save function
  powerpc/microwatt: Device-tree updates
  powerpc/microwatt: Select COMMON_CLK in order to get the clock framework
  net: toshiba: Remove reference to PPC_IBM_CELL_BLADE
  net: spider_net: Remove powerpc Cell driver
  cpufreq: ppc_cbe: Remove powerpc Cell driver
  genirq: Remove IRQ_EDGE_EOI_HANDLER
  docs: Remove reference to removed CBE_CPUFREQ_SPU_GOVERNOR
  powerpc: Remove UDBG_RTAS_CONSOLE
  powerpc/io: Use standard barrier macros in io.c
  powerpc/io: Rename _insw_ns() etc.
  powerpc/io: Use generic raw accessors
  ...
2025-03-27 19:39:08 -07:00
Linus Torvalds
1a9239bb42 Networking changes for 6.15.
Core & protocols
 ----------------
 
  - Continue Netlink conversions to per-namespace RTNL lock
    (IPv4 routing, routing rules, routing next hops, ARP ioctls).
 
  - Continue extending the use of netdev instance locks. As a driver
    opt-in protect queue operations and (in due course) ethtool
    operations with the instance lock and not RTNL lock.
 
  - Support collecting TCP timestamps (data submitted, sent, acked)
    in BPF, allowing for transparent (to the application) and lower
    overhead tracking of TCP RPC performance.
 
  - Tweak existing networking Rx zero-copy infra to support zero-copy
    Rx via io_uring.
 
  - Optimize MPTCP performance in single subflow mode by 29%.
 
  - Enable GRO on packets which went thru XDP CPU redirect (were queued
    for processing on a different CPU). Improving TCP stream performance
    up to 2x.
 
  - Improve performance of contended connect() by 200% by searching
    for an available 4-tuple under RCU rather than a spin lock.
    Bring an additional 229% improvement by tweaking hash distribution.
 
  - Avoid unconditionally touching sk_tsflags on RX, improving
    performance under UDP flood by as much as 10%.
 
  - Avoid skb_clone() dance in ping_rcv() to improve performance under
    ping flood.
 
  - Avoid FIB lookup in netfilter if socket is available, 20% perf win.
 
  - Rework network device creation (in-kernel) API to more clearly
    identify network namespaces and their roles.
    There are up to 4 namespace roles but we used to have just 2 netns
    pointer arguments, interpreted differently based on context.
 
  - Use sysfs_break_active_protection() instead of trylock to avoid
    deadlocks between unregistering objects and sysfs access.
 
  - Add a new sysctl and sockopt for capping max retransmit timeout
    in TCP.
 
  - Support masking port and DSCP in routing rule matches.
 
  - Support dumping IPv4 multicast addresses with RTM_GETMULTICAST.
 
  - Support specifying at what time packet should be sent on AF_XDP
    sockets.
 
  - Expose TCP ULP diagnostic info (for TLS and MPTCP) to non-admin users.
 
  - Add Netlink YAML spec for WiFi (nl80211) and conntrack.
 
  - Introduce EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() for symbols
    which only need to be exported when IPv6 support is built as a module.
 
  - Age FDB entries based on Rx not Tx traffic in VxLAN, similar
    to normal bridging.
 
  - Allow users to specify source port range for GENEVE tunnels.
 
  - netconsole: allow attaching kernel release, CPU ID and task name
    to messages as metadata
 
 Driver API
 ----------
 
  - Continue rework / fixing of Energy Efficient Ethernet (EEE) across
    the SW layers. Delegate the responsibilities to phylink where possible.
    Improve its handling in phylib.
 
  - Support symmetric OR-XOR RSS hashing algorithm.
 
  - Support tracking and preserving IRQ affinity by NAPI itself.
 
  - Support loopback mode speed selection for interface selftests.
 
 Device drivers
 --------------
 
  - Remove the IBM LCS driver for s390.
 
  - Remove the sb1000 cable modem driver.
 
  - Add support for SFP module access over SMBus.
 
  - Add MCTP transport driver for MCTP-over-USB.
 
  - Enable XDP metadata support in multiple drivers.
 
  - Ethernet high-speed NICs:
    - Broadcom (bnxt):
      - add PCIe TLP Processing Hints (TPH) support for new AMD platforms
      - support dumping RoCE queue state for debug
      - opt into instance locking
    - Intel (100G, ice, idpf):
      - ice: rework MSI-X IRQ management and distribution
      - ice: support for E830 devices
      - iavf: add support for Rx timestamping
      - iavf: opt into instance locking
    - nVidia/Mellanox:
      - mlx4: use page pool memory allocator for Rx
      - mlx5: support for one PTP device per hardware clock
      - mlx5: support for 200Gbps per-lane link modes
      - mlx5: move IPSec policy check after decryption
    - AMD/Solarflare:
      - support FW flashing via devlink
    - Cisco (enic):
      - use page pool memory allocator for Rx
      - enable 32, 64 byte CQEs
      - get max rx/tx ring size from the device
    - Meta (fbnic):
      - support flow steering and RSS configuration
      - report queue stats
      - support TCP segmentation
      - support IRQ coalescing
      - support ring size configuration
    - Marvell/Cavium:
      - support AF_XDP
    - Wangxun:
      - support for PTP clock and timestamping
    - Huawei (hibmcge):
      - checksum offload
      - add more statistics
 
  - Ethernet virtual:
    - VirtIO net:
      - aggressively suppress Tx completions, improve perf by 96% with
        1 CPU and 55% with 2 CPUs
      - expose NAPI to IRQ mapping and persist NAPI settings
    - Google (gve):
      - support XDP in DQO RDA Queue Format
      - opt into instance locking
    - Microsoft vNIC:
      - support BIG TCP
 
  - Ethernet NICs consumer, and embedded:
    - Synopsys (stmmac):
      - cleanup Tx and Tx clock setting and other link-focused cleanups
      - enable SGMII and 2500BASEX mode switching for Intel platforms
      - support Sophgo SG2044
    - Broadcom switches (b53):
      - support for BCM53101
    - TI:
      - iep: add perout configuration support
      - icssg: support XDP
    - Cadence (macb):
      - implement BQL
    - Xilinx (axinet):
      - support dynamic IRQ moderation and changing coalescing at runtime
      - implement BQL
      - report standard stats
    - MediaTek:
      - support phylink managed EEE
    - Intel:
      - igc: don't restart the interface on every XDP program change
    - RealTek (r8169):
      - support reading registers of internal PHYs directly
      - increase max jumbo packet size on RTL8125/RTL8126
    - Airoha:
      - support for RISC-V NPU packet processing unit
      - enable scatter-gather and support MTU up to 9kB
    - Tehuti (tn40xx):
      - support cards with TN4010 MAC and an Aquantia AQR105 PHY
 
  - Ethernet PHYs:
    - support for TJA1102S, TJA1121
    - dp83tg720: add randomized polling intervals for link detection
    - dp83822: support changing the transmit amplitude voltage
    - support for LEDs on 88q2xxx
 
  - CAN:
    - canxl: support Remote Request Substitution bit access
    - flexcan: add S32G2/S32G3 SoC
 
  - WiFi:
    - remove cooked monitor support
    - strict mode for better AP testing
    - basic EPCS support
    - OMI RX bandwidth reduction support
    - batman-adv: add support for jumbo frames
 
  - WiFi drivers:
    - RealTek (rtw88):
      - support RTL8814AE and RTL8814AU
    - RealTek (rtw89):
      - switch using wiphy_lock and wiphy_work
      - add BB context to manipulate two PHY as preparation of MLO
      - improve BT-coexistence mechanism to play A2DP smoothly
    - Intel (iwlwifi):
      - add new iwlmld sub-driver for latest HW/FW combinations
    - MediaTek (mt76):
      - preparation for mt7996 Multi-Link Operation (MLO) support
    - Qualcomm/Atheros (ath12k):
      - continued work on MLO
    - Silabs (wfx):
      - Wake-on-WLAN support
 
  - Bluetooth:
    - add support for skb TX SND/COMPLETION timestamping
    - hci_core: enable buffer flow control for SCO/eSCO
    - coredump: log devcd dumps into the monitor
 
  - Bluetooth drivers:
    - intel: add support to configure TX power
    - nxp: handle bootloader error during cmd5 and cmd7
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core & protocols:

   - Continue Netlink conversions to per-namespace RTNL lock
     (IPv4 routing, routing rules, routing next hops, ARP ioctls)

   - Continue extending the use of netdev instance locks. As a driver
     opt-in protect queue operations and (in due course) ethtool
     operations with the instance lock and not RTNL lock.

   - Support collecting TCP timestamps (data submitted, sent, acked) in
     BPF, allowing for transparent (to the application) and lower
     overhead tracking of TCP RPC performance.

   - Tweak existing networking Rx zero-copy infra to support zero-copy
     Rx via io_uring.

   - Optimize MPTCP performance in single subflow mode by 29%.

   - Enable GRO on packets which went thru XDP CPU redirect (were queued
     for processing on a different CPU). Improving TCP stream
     performance up to 2x.

   - Improve performance of contended connect() by 200% by searching for
     an available 4-tuple under RCU rather than a spin lock. Bring an
     additional 229% improvement by tweaking hash distribution.

   - Avoid unconditionally touching sk_tsflags on RX, improving
     performance under UDP flood by as much as 10%.

   - Avoid skb_clone() dance in ping_rcv() to improve performance under
     ping flood.

   - Avoid FIB lookup in netfilter if socket is available, 20% perf win.

   - Rework network device creation (in-kernel) API to more clearly
     identify network namespaces and their roles. There are up to 4
     namespace roles but we used to have just 2 netns pointer arguments,
     interpreted differently based on context.

   - Use sysfs_break_active_protection() instead of trylock to avoid
     deadlocks between unregistering objects and sysfs access.

   - Add a new sysctl and sockopt for capping max retransmit timeout in
     TCP.

   - Support masking port and DSCP in routing rule matches.

   - Support dumping IPv4 multicast addresses with RTM_GETMULTICAST.

   - Support specifying at what time packet should be sent on AF_XDP
     sockets.

   - Expose TCP ULP diagnostic info (for TLS and MPTCP) to non-admin
     users.

   - Add Netlink YAML spec for WiFi (nl80211) and conntrack.

   - Introduce EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() for symbols
     which only need to be exported when IPv6 support is built as a
     module.

   - Age FDB entries based on Rx not Tx traffic in VxLAN, similar to
     normal bridging.

   - Allow users to specify source port range for GENEVE tunnels.

   - netconsole: allow attaching kernel release, CPU ID and task name to
     messages as metadata

  Driver API:

   - Continue rework / fixing of Energy Efficient Ethernet (EEE) across
     the SW layers. Delegate the responsibilities to phylink where
     possible. Improve its handling in phylib.

   - Support symmetric OR-XOR RSS hashing algorithm.

   - Support tracking and preserving IRQ affinity by NAPI itself.

   - Support loopback mode speed selection for interface selftests.

  Device drivers:

   - Remove the IBM LCS driver for s390

   - Remove the sb1000 cable modem driver

   - Add support for SFP module access over SMBus

   - Add MCTP transport driver for MCTP-over-USB

   - Enable XDP metadata support in multiple drivers

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - add PCIe TLP Processing Hints (TPH) support for new AMD
           platforms
         - support dumping RoCE queue state for debug
         - opt into instance locking
      - Intel (100G, ice, idpf):
         - ice: rework MSI-X IRQ management and distribution
         - ice: support for E830 devices
         - iavf: add support for Rx timestamping
         - iavf: opt into instance locking
      - nVidia/Mellanox:
         - mlx4: use page pool memory allocator for Rx
         - mlx5: support for one PTP device per hardware clock
         - mlx5: support for 200Gbps per-lane link modes
         - mlx5: move IPSec policy check after decryption
      - AMD/Solarflare:
         - support FW flashing via devlink
      - Cisco (enic):
         - use page pool memory allocator for Rx
         - enable 32, 64 byte CQEs
         - get max rx/tx ring size from the device
      - Meta (fbnic):
         - support flow steering and RSS configuration
         - report queue stats
         - support TCP segmentation
         - support IRQ coalescing
         - support ring size configuration
      - Marvell/Cavium:
         - support AF_XDP
      - Wangxun:
         - support for PTP clock and timestamping
      - Huawei (hibmcge):
         - checksum offload
         - add more statistics

   - Ethernet virtual:
      - VirtIO net:
         - aggressively suppress Tx completions, improve perf by 96%
           with 1 CPU and 55% with 2 CPUs
         - expose NAPI to IRQ mapping and persist NAPI settings
      - Google (gve):
         - support XDP in DQO RDA Queue Format
         - opt into instance locking
      - Microsoft vNIC:
         - support BIG TCP

   - Ethernet NICs consumer, and embedded:
      - Synopsys (stmmac):
         - cleanup Tx and Tx clock setting and other link-focused
           cleanups
         - enable SGMII and 2500BASEX mode switching for Intel platforms
         - support Sophgo SG2044
      - Broadcom switches (b53):
         - support for BCM53101
      - TI:
         - iep: add perout configuration support
         - icssg: support XDP
      - Cadence (macb):
         - implement BQL
      - Xilinx (axinet):
         - support dynamic IRQ moderation and changing coalescing at
           runtime
         - implement BQL
         - report standard stats
      - MediaTek:
         - support phylink managed EEE
      - Intel:
         - igc: don't restart the interface on every XDP program change
      - RealTek (r8169):
         - support reading registers of internal PHYs directly
         - increase max jumbo packet size on RTL8125/RTL8126
      - Airoha:
         - support for RISC-V NPU packet processing unit
         - enable scatter-gather and support MTU up to 9kB
      - Tehuti (tn40xx):
         - support cards with TN4010 MAC and an Aquantia AQR105 PHY

   - Ethernet PHYs:
      - support for TJA1102S, TJA1121
      - dp83tg720: add randomized polling intervals for link detection
      - dp83822: support changing the transmit amplitude voltage
      - support for LEDs on 88q2xxx

   - CAN:
      - canxl: support Remote Request Substitution bit access
      - flexcan: add S32G2/S32G3 SoC

   - WiFi:
      - remove cooked monitor support
      - strict mode for better AP testing
      - basic EPCS support
      - OMI RX bandwidth reduction support
      - batman-adv: add support for jumbo frames

   - WiFi drivers:
      - RealTek (rtw88):
         - support RTL8814AE and RTL8814AU
      - RealTek (rtw89):
         - switch using wiphy_lock and wiphy_work
         - add BB context to manipulate two PHY as preparation of MLO
         - improve BT-coexistence mechanism to play A2DP smoothly
      - Intel (iwlwifi):
         - add new iwlmld sub-driver for latest HW/FW combinations
      - MediaTek (mt76):
         - preparation for mt7996 Multi-Link Operation (MLO) support
      - Qualcomm/Atheros (ath12k):
         - continued work on MLO
      - Silabs (wfx):
         - Wake-on-WLAN support

   - Bluetooth:
      - add support for skb TX SND/COMPLETION timestamping
      - hci_core: enable buffer flow control for SCO/eSCO
      - coredump: log devcd dumps into the monitor

   - Bluetooth drivers:
      - intel: add support to configure TX power
      - nxp: handle bootloader error during cmd5 and cmd7"

* tag 'net-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1681 commits)
  unix: fix up for "apparmor: add fine grained af_unix mediation"
  mctp: Fix incorrect tx flow invalidation condition in mctp-i2c
  net: usb: asix: ax88772: Increase phy_name size
  net: phy: Introduce PHY_ID_SIZE — minimum size for PHY ID string
  net: libwx: fix Tx L4 checksum
  net: libwx: fix Tx descriptor content for some tunnel packets
  atm: Fix NULL pointer dereference
  net: tn40xx: add pci-id of the aqr105-based Tehuti TN4010 cards
  net: tn40xx: prepare tn40xx driver to find phy of the TN9510 card
  net: tn40xx: create swnode for mdio and aqr105 phy and add to mdiobus
  net: phy: aquantia: add essential functions to aqr105 driver
  net: phy: aquantia: search for firmware-name in fwnode
  net: phy: aquantia: add probe function to aqr105 for firmware loading
  net: phy: Add swnode support to mdiobus_scan
  gve: add XDP DROP and PASS support for DQ
  gve: update XDP allocation path support RX buffer posting
  gve: merge packet buffer size fields
  gve: update GQ RX to use buf_size
  gve: introduce config-based allocation for XDP
  gve: remove xdp_xsk_done and xdp_xsk_wakeup statistics
  ...
2025-03-26 21:48:21 -07:00