linux-stable.git/drivers/infiniband/ulp, branch v6.3

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

2023-02-24T23:11:03+00:00

Pull rdma updates from Jason Gunthorpe:
 "Quite a small cycle this time, even with the rc8. I suppose everyone
  went to sleep over xmas.

   - Minor driver updates for hfi1, cxgb4, erdma, hns, irdma, mlx5, siw,
     mana

   - inline CQE support for hns

   - Have mlx5 display device error codes

   - Pinned DMABUF support for irdma

   - Continued rxe cleanups, particularly converting the MRs to use
     xarray

   - Improvements to what can be cached in the mlx5 mkey cache"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (61 commits)
  IB/mlx5: Extend debug control for CC parameters
  IB/hfi1: Fix sdma.h tx->num_descs off-by-one errors
  IB/hfi1: Fix math bugs in hfi1_can_pin_pages()
  RDMA/irdma: Add support for dmabuf pin memory regions
  RDMA/mlx5: Use query_special_contexts for mkeys
  net/mlx5e: Use query_special_contexts for mkeys
  net/mlx5: Change define name for 0x100 lkey value
  net/mlx5: Expose bits for querying special mkeys
  RDMA/rxe: Fix missing memory barriers in rxe_queue.h
  RDMA/mana_ib: Fix a bug when the PF indicates more entries for registering memory on first packet
  RDMA/rxe: Remove rxe_alloc()
  RDMA/cma: Distinguish between sockaddr_in and sockaddr_in6 by size
  Subject: RDMA/rxe: Handle zero length rdma
  iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry()
  RDMA/mlx5: Use rdma_umem_for_each_dma_block()
  RDMA/umem: Remove unused 'work' member from struct ib_umem
  RDMA/irdma: Cap MSIX used to online CPUs + 1
  RDMA/mlx5: Check reg_create() create for errors
  RDMA/restrack: Correct spelling
  RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish()
  ...

Merge tag 'mm-nonmm-stable-2023-02-20-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-02-24T01:55:40+00:00

Pull non-MM updates from Andrew Morton:
 "There is no particular theme here - mainly quick hits all over the
  tree.

  Most notable is a set of zlib changes from Mikhail Zaslonko which
  enhances and fixes zlib's use of S390 hardware support: 'lib/zlib: Set
  of s390 DFLTCC related patches for kernel zlib'"

* tag 'mm-nonmm-stable-2023-02-20-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (55 commits)
  Update CREDITS file entry for Jesper Juhl
  sparc: allow PM configs for sparc32 COMPILE_TEST
  hung_task: print message when hung_task_warnings gets down to zero.
  arch/Kconfig: fix indentation
  scripts/tags.sh: fix the Kconfig tags generation when using latest ctags
  nilfs2: prevent WARNING in nilfs_dat_commit_end()
  lib/zlib: remove redundation assignement of avail_in dfltcc_gdht()
  lib/Kconfig.debug: do not enable DEBUG_PREEMPT by default
  lib/zlib: DFLTCC always switch to software inflate for Z_PACKET_FLUSH option
  lib/zlib: DFLTCC support inflate with small window
  lib/zlib: Split deflate and inflate states for DFLTCC
  lib/zlib: DFLTCC not writing header bits when avail_out == 0
  lib/zlib: fix DFLTCC ignoring flush modes when avail_in == 0
  lib/zlib: fix DFLTCC not flushing EOBS when creating raw streams
  lib/zlib: implement switching between DFLTCC and software
  lib/zlib: adjust offset calculation for dfltcc_state
  nilfs2: replace WARN_ONs for invalid DAT metadata block requests
  scripts/spelling.txt: add "exsits" pattern and fix typo instances
  fs: gracefully handle ->get_block not mapping bh in __mpage_writepage
  cramfs: Kconfig: fix spelling & punctuation
  ...

RDMA/rtrs: Don't call kobject_del for srv_path->kobj

2023-02-07T09:21:32+00:00

As the mention in commmit f7452a7e96c1 ("RDMA/rtrs-srv: fix memory leak by missing kobject free"),
it was intended to remove the kobject_del for srv_path->kobj.

f7452a7e96c1 said:
>This patch moves kobject_del() into free_sess() so that the kobject of
>    rtrs_srv_sess can be freed.

This patch also move rtrs_srv_destroy_once_sysfs_root_folders back to
'if (srv_path->kobj.state_in_sysfs)' block to avoid a 'held lock freed!'

A kernel panic will be triggered by following script
-----------------------
$ while true
do
        echo "sessname=foo path=ip: device_path=/dev/nvme0n1" > /sys/devices/virtual/rnbd-client/ctl/map_device
        echo "normal" > /sys/block/rnbd0/rnbd/unmap_device
done
-----------------------
The bisection pointed to commit 6af4609c18b3 ("RDMA/rtrs-srv: Fix several issues in rtrs_srv_destroy_path_files")
at last.

 rnbd_server L777: : Opened device 'nvme0n1'
 general protection fault, probably for non-canonical address 0x765f766564753aea: 0000 [#1] PREEMPT SMP PTI
 CPU: 0 PID: 3558 Comm: systemd-udevd Kdump: loaded Not tainted 6.1.0-rc3-roce-flush+ #51
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
 RIP: 0010:kernfs_dop_revalidate+0x36/0x180
 Code: 00 00 41 55 41 54 55 53 48 8b 47 68 48 89 fb 48 85 c0 0f 84 db 00 00 00 48 8b a8 60 04 00 00 48 8b 45 30 48 85 c0 48 0f 44 c5 <4c> 8b 60 78 49 81 c4 d8 00 00 00 4c 89 e7 e8 b7 78 7b 00 8b 05 3d
 RSP: 0018:ffffaf1700b67c78 EFLAGS: 00010206
 RAX: 765f766564753a72 RBX: ffff89e2830849c0 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff89e2830849c0
 RBP: ffff89e280361bd0 R08: 0000000000000000 R09: 0000000000000001
 R10: 0000000000000065 R11: 0000000000000000 R12: ffff89e2830849c0
 R13: ffff89e283084888 R14: d0d0d0d0d0d0d0d0 R15: 2f2f2f2f2f2f2f2f
 FS:  00007f13fbce7b40(0000) GS:ffff89e2bbc00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f93e055d340 CR3: 0000000104664002 CR4: 00000000001706f0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  
  lookup_fast+0x7b/0x100
  walk_component+0x21/0x160
  link_path_walk.part.0+0x24d/0x390
  path_openat+0xad/0x9a0
  do_filp_open+0xa9/0x150
  ? lock_release+0x13c/0x2e0
  ? _raw_spin_unlock+0x29/0x50
  ? alloc_fd+0x124/0x1f0
  do_sys_openat2+0x9b/0x160
  __x64_sys_openat+0x54/0xa0
  do_syscall_64+0x3b/0x90
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
 RIP: 0033:0x7f13fc9d701b
 Code: 25 00 00 41 00 3d 00 00 41 00 74 4b 64 8b 04 25 18 00 00 00 85 c0 75 67 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 91 00 00 00 48 8b 54 24 28 64 48 2b 14 25
 RSP: 002b:00007ffddf242640 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f13fc9d701b
 RDX: 0000000000080000 RSI: 00007ffddf2427c0 RDI: 00000000ffffff9c
 RBP: 00007ffddf2427c0 R08: 00007f13fcc5b440 R09: 21b2131aa64b1ef2
 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000
 R13: 00007ffddf2427c0 R14: 000055ed13be8db0 R15: 0000000000000000

Fixes: 6af4609c18b3 ("RDMA/rtrs-srv: Fix several issues in rtrs_srv_destroy_path_files")
Acked-by: Guoqing Jiang 
Signed-off-by: Li Zhijian 
Link: https://lore.kernel.org/r/1675332721-2-1-git-send-email-lizhijian@fujitsu.com
Acked-by: Jack Wang 
Signed-off-by: Leon Romanovsky

scripts/spelling.txt: add "exsits" pattern and fix typo instances

2023-02-03T06:50:07+00:00

Fix typos and add the following to the scripts/spelling.txt:

  exsits||exists

Link: https://lkml.kernel.org/r/20230126152205.959277-1-luca.ceresoli@bootlin.com
Signed-off-by: Luca Ceresoli 
Signed-off-by: Andrew Morton

IB/IPoIB: Fix legacy IPoIB due to wrong number of queues

2023-01-26T19:18:27+00:00

The cited commit creates child PKEY interfaces over netlink will
multiple tx and rx queues, but some devices doesn't support more than 1
tx and 1 rx queues. This causes to a crash when traffic is sent over the
PKEY interface due to the parent having a single queue but the child
having multiple queues.

This patch fixes the number of queues to 1 for legacy IPoIB at the
earliest possible point in time.

BUG: kernel NULL pointer dereference, address: 000000000000036b
PGD 0 P4D 0
Oops: 0000 [#1] SMP
CPU: 4 PID: 209665 Comm: python3 Not tainted 6.1.0_for_upstream_min_debug_2022_12_12_17_02 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:kmem_cache_alloc+0xcb/0x450
Code: ce 7e 49 8b 50 08 49 83 78 10 00 4d 8b 28 0f 84 cb 02 00 00 4d 85 ed 0f 84 c2 02 00 00 41 8b 44 24 28 48 8d 4a
01 49 8b 3c 24 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b8 41 8b
RSP: 0018:ffff88822acbbab8 EFLAGS: 00010202
RAX: 0000000000000070 RBX: ffff8881c28e3e00 RCX: 00000000064f8dae
RDX: 00000000064f8dad RSI: 0000000000000a20 RDI: 0000000000030d00
RBP: 0000000000000a20 R08: ffff8882f5d30d00 R09: ffff888104032f40
R10: ffff88810fade828 R11: 736f6d6570736575 R12: ffff88810081c000
R13: 00000000000002fb R14: ffffffff817fc865 R15: 0000000000000000
FS:  00007f9324ff9700(0000) GS:ffff8882f5d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000000036b CR3: 00000001125af004 CR4: 0000000000370ea0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 
 skb_clone+0x55/0xd0
 ip6_finish_output2+0x3fe/0x690
 ip6_finish_output+0xfa/0x310
 ip6_send_skb+0x1e/0x60
 udp_v6_send_skb+0x1e5/0x420
 udpv6_sendmsg+0xb3c/0xe60
 ? ip_mc_finish_output+0x180/0x180
 ? __switch_to_asm+0x3a/0x60
 ? __switch_to_asm+0x34/0x60
 sock_sendmsg+0x33/0x40
 __sys_sendto+0x103/0x160
 ? _copy_to_user+0x21/0x30
 ? kvm_clock_get_cycles+0xd/0x10
 ? ktime_get_ts64+0x49/0xe0
 __x64_sys_sendto+0x25/0x30
 do_syscall_64+0x3d/0x90
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f9374f1ed14
Code: 42 41 f8 ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b
7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 68 41 f8 ff 48 8b
RSP: 002b:00007f9324ff7bd0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f9324ff7cc8 RCX: 00007f9374f1ed14
RDX: 00000000000002fb RSI: 00007f93000052f0 RDI: 0000000000000030
RBP: 0000000000000000 R08: 00007f9324ff7d40 R09: 000000000000001c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 000000012a05f200 R14: 0000000000000001 R15: 00007f9374d57bdc
 

Fixes: dbc94a0fb817 ("IB/IPoIB: Fix queue count inconsistency for PKEY child interfaces")
Signed-off-by: Dragos Tatulea 
Link: https://lore.kernel.org/r/95eb6b74c7cf49fa46281f9d056d685c9fa11d38.1674584576.git.leon@kernel.org
Signed-off-by: Leon Romanovsky

Merge branch 'mlx5-next' into HEAD

2023-01-15T10:22:36+00:00

Bring HW bits for mlx5 QP events series.

Link: https://lore.kernel.org/all/cover.1672821186.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky

RDMA/cma: Refactor the inbound/outbound path records process flow

2023-01-10T08:49:50+00:00

Refactors based on comments [1] of the multiple path records support
patchset:
- Return failure if not able to set inbound/outbound PRs;
- Simplify the flow when receiving the PRs from netlink channel: When
  a good PR response is received, unpack it and call the path_query
  callback directly. This saves two memory allocations;
- Define RDMA_PRIMARY_PATH_MAX_REC_NUM in a proper place.

[1] https://lore.kernel.org/linux-rdma/Yyxp9E9pJtUids2o@nvidia.com/

Signed-off-by: Mark Zhang 
Reviewed-by: Bart Van Assche  #srp
Link: https://lore.kernel.org/r/7610025d57342b8b6da0f19516c9612f9c3fdc37.1672819376.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky

RDMA/srp: Move large values to a new enum for gcc13

2022-12-29T07:07:58+00:00

Since gcc13, each member of an enum has the same type as the enum [1]. And
that is inherited from its members. Provided these two:
  SRP_TAG_NO_REQ        = ~0U,
  SRP_TAG_TSK_MGMT	= 1U << 31
all other members are unsigned ints.

Esp. with SRP_MAX_SGE and SRP_TSK_MGMT_SQ_SIZE and their use in min(),
this results in the following warnings:
  include/linux/minmax.h:20:35: error: comparison of distinct pointer types lacks a cast
  drivers/infiniband/ulp/srp/ib_srp.c:563:42: note: in expansion of macro 'min'

  include/linux/minmax.h:20:35: error: comparison of distinct pointer types lacks a cast
  drivers/infiniband/ulp/srp/ib_srp.c:2369:27: note: in expansion of macro 'min'

So move the large values away to a separate enum, so that they don't
affect other members.

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36113

Link: https://lore.kernel.org/r/20221212120411.13750-1-jirislaby@kernel.org
Signed-off-by: Jiri Slaby (SUSE) 
Reviewed-by: Bart Van Assche 
Signed-off-by: Leon Romanovsky

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

2022-12-14T17:27:13+00:00

Pull rdma updates from Jason Gunthorpe:
 "Usual size of updates, a new driver, and most of the bulk focusing on
  rxe:

   - Usual typos, style, and language updates

   - Driver updates for mlx5, irdma, siw, rts, srp, hfi1, hns, erdma,
     mlx4, srp

   - Lots of RXE updates:
      * Improve reply error handling for bad MR operations
      * Code tidying
      * Debug printing uses common loggers
      * Remove half implemented RD related stuff
      * Support IBA's recently defined Atomic Write and Flush operations

   - erdma support for atomic operations

   - New driver 'mana' for Ethernet HW available in Azure VMs. This
     driver only supports DPDK"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (122 commits)
  IB/IPoIB: Fix queue count inconsistency for PKEY child interfaces
  RDMA: Add missed netdev_put() for the netdevice_tracker
  RDMA/rxe: Enable RDMA FLUSH capability for rxe device
  RDMA/cm: Make QP FLUSHABLE for supported device
  RDMA/rxe: Implement flush completion
  RDMA/rxe: Implement flush execution in responder side
  RDMA/rxe: Implement RC RDMA FLUSH service in requester side
  RDMA/rxe: Extend rxe packet format to support flush
  RDMA/rxe: Allow registering persistent flag for pmem MR only
  RDMA/rxe: Extend rxe user ABI to support flush
  RDMA: Extend RDMA kernel verbs ABI to support flush
  RDMA: Extend RDMA user ABI to support flush
  RDMA/rxe: Fix incorrect responder length checking
  RDMA/rxe: Fix oops with zero length reads
  RDMA/mlx5: Remove not-used IB_FLOW_SPEC_IB define
  RDMA/hns: Fix XRC caps on HIP08
  RDMA/hns: Fix error code of CMD
  RDMA/hns: Fix page size cap from firmware
  RDMA/hns: Fix PBL page MTR find
  RDMA/hns: Fix AH attr queried by query_qp
  ...

Merge tag 'pull-iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2022-12-13T02:29:54+00:00

Pull iov_iter updates from Al Viro:
 "iov_iter work; most of that is about getting rid of direction
  misannotations and (hopefully) preventing more of the same for the
  future"

* tag 'pull-iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  use less confusing names for iov_iter direction initializers
  iov_iter: saner checks for attempt to copy to/from iterator
  [xen] fix "direction" argument of iov_iter_kvec()
  [vhost] fix 'direction' argument of iov_iter_{init,bvec}()
  [target] fix iov_iter_bvec() "direction" argument
  [s390] memcpy_real(): WRITE is "data source", not destination...
  [s390] zcore: WRITE is "data source", not destination...
  [infiniband] READ is "data destination", not source...
  [fsi] WRITE is "data source", not destination...
  [s390] copy_oldmem_kernel() - WRITE is "data source", not destination
  csum_and_copy_to_iter(): handle ITER_DISCARD
  get rid of unlikely() on page_copy_sane() calls