platform/kernel/linux-rpi.git
2 years agonet: sparx5: Support offloading of bridge port flooding flags
Casper Andersson [Wed, 23 Feb 2022 08:27:00 +0000 (09:27 +0100)]
net: sparx5: Support offloading of bridge port flooding flags

Though the SparX-5i can control IPv4/6 multicasts separately from non-IP
multicasts, these are all muxed onto the bridge's BR_MCAST_FLOOD flag.

Signed-off-by: Casper Andersson <casper.casan@gmail.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20220223082700.qrot7lepwqcdnyzw@wse-c0155
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Jakub Kicinski [Fri, 25 Feb 2022 01:54:25 +0000 (17:54 -0800)]
Merge git://git./linux/kernel/git/netdev/net

tools/testing/selftests/net/mptcp/mptcp_join.sh
  34aa6e3bccd8 ("selftests: mptcp: add ip mptcp wrappers")

  857898eb4b28 ("selftests: mptcp: add missing join check")
  6ef84b1517e0 ("selftests: mptcp: more robust signal race test")
https://lore.kernel.org/all/20220221131842.468893-1-broonie@kernel.org/

drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h
drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c
  fb7e76ea3f3b6 ("net/mlx5e: TC, Skip redundant ct clear actions")
  c63741b426e11 ("net/mlx5e: Fix MPLSoUDP encap to use MPLS action information")

  09bf97923224f ("net/mlx5e: TC, Move pedit_headers_action to parse_attr")
  84ba8062e383 ("net/mlx5e: Test CT and SAMPLE on flow attr")
  efe6f961cd2e ("net/mlx5e: CT, Don't set flow flag CT for ct clear flow")
  3b49a7edec1d ("net/mlx5e: TC, Reject rules with multiple CT actions")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge tag 'pci-v5.17-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...
Linus Torvalds [Thu, 24 Feb 2022 21:19:57 +0000 (13:19 -0800)]
Merge tag 'pci-v5.17-fixes-5' of git://git./linux/kernel/git/helgaas/pci

Pull pci fixes from Bjorn Helgaas:

 - Fix a merge error that broke PCI device enumeration on mvebu
   platforms, including Turris Omnia (Armada 385) (Pali Rohár)

 - Avoid using ATS on all AMD Navi10 and Navi14 GPUs because some
   VBIOSes don't account for "harvested" (disabled) parts of the chip
   when initializing caches (Alex Deucher)

* tag 'pci-v5.17-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Mark all AMD Navi10 and Navi14 GPU ATS as broken
  PCI: mvebu: Fix device enumeration regression

2 years agoMerge tag 'net-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 24 Feb 2022 20:45:32 +0000 (12:45 -0800)]
Merge tag 'net-5.17-rc6' of git://git./linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bpf and netfilter.

  Current release - regressions:

   - bpf: fix crash due to out of bounds access into reg2btf_ids

   - mvpp2: always set port pcs ops, avoid null-deref

   - eth: marvell: fix driver load from initrd

   - eth: intel: revert "Fix reset bw limit when DCB enabled with 1 TC"

  Current release - new code bugs:

   - mptcp: fix race in overlapping signal events

  Previous releases - regressions:

   - xen-netback: revert hotplug-status changes causing devices to not
     be configured

   - dsa:
      - avoid call to __dev_set_promiscuity() while rtnl_mutex isn't
        held
      - fix panic when removing unoffloaded port from bridge

   - dsa: microchip: fix bridging with more than two member ports

  Previous releases - always broken:

   - bpf:
      - fix crash due to incorrect copy_map_value when both spin lock
        and timer are present in a single value
      - fix a bpf_timer initialization issue with clang
      - do not try bpf_msg_push_data with len 0
      - add schedule points in batch ops

   - nf_tables:
      - unregister flowtable hooks on netns exit
      - correct flow offload action array size
      - fix a couple of memory leaks

   - vsock: don't check owner in vhost_vsock_stop() while releasing

   - gso: do not skip outer ip header in case of ipip and net_failover

   - smc: use a mutex for locking "struct smc_pnettable"

   - openvswitch: fix setting ipv6 fields causing hw csum failure

   - mptcp: fix race in incoming ADD_ADDR option processing

   - sysfs: add check for netdevice being present to speed_show

   - sched: act_ct: fix flow table lookup after ct clear or switching
     zones

   - eth: intel: fixes for SR-IOV forwarding offloads

   - eth: broadcom: fixes for selftests and error recovery

   - eth: mellanox: flow steering and SR-IOV forwarding fixes

  Misc:

   - make __pskb_pull_tail() & pskb_carve_frag_list() drop_monitor
     friends not report freed skbs as drops

   - force inlining of checksum functions in net/checksum.h"

* tag 'net-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (85 commits)
  net: mv643xx_eth: process retval from of_get_mac_address
  ping: remove pr_err from ping_lookup
  Revert "i40e: Fix reset bw limit when DCB enabled with 1 TC"
  openvswitch: Fix setting ipv6 fields causing hw csum failure
  ipv6: prevent a possible race condition with lifetimes
  net/smc: Use a mutex for locking "struct smc_pnettable"
  bnx2x: fix driver load from initrd
  Revert "xen-netback: Check for hotplug-status existence before watching"
  Revert "xen-netback: remove 'hotplug-status' once it has served its purpose"
  net/mlx5e: Fix VF min/max rate parameters interchange mistake
  net/mlx5e: Add missing increment of count
  net/mlx5e: MPLSoUDP decap, fix check for unsupported matches
  net/mlx5e: Fix MPLSoUDP encap to use MPLS action information
  net/mlx5e: Add feature check for set fec counters
  net/mlx5e: TC, Skip redundant ct clear actions
  net/mlx5e: TC, Reject rules with forward and drop actions
  net/mlx5e: TC, Reject rules with drop and modify hdr action
  net/mlx5e: kTLS, Use CHECKSUM_UNNECESSARY for device-offloaded packets
  net/mlx5e: Fix wrong return value on ioctl EEPROM query failure
  net/mlx5: Fix possible deadlock on rule deletion
  ...

2 years agoMerge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next...
Jakub Kicinski [Thu, 24 Feb 2022 19:48:03 +0000 (11:48 -0800)]
Merge branch '10GbE' of git://git./linux/kernel/git/tnguy/next-queue

Nguyen, Anthony L says:

====================
10GbE Intel Wired LAN Driver Updates 2022-02-23

Yang Li fixes incorrect indenting as reported by smatch for ixgbevf.

Piotr removes non-inclusive language from ixgbe driver.

* '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
  ixgbe: Remove non-inclusive language
  ixgbevf: clean up some inconsistent indenting
====================

Link: https://lore.kernel.org/r/20220223185424.2129067-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge tag 'block-5.17-2022-02-24' of git://git.kernel.dk/linux-block
Linus Torvalds [Thu, 24 Feb 2022 19:15:10 +0000 (11:15 -0800)]
Merge tag 'block-5.17-2022-02-24' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - NVMe pull request:
    - send H2CData PDUs based on MAXH2CDATA (Varun Prakash)
    - fix passthrough to namespaces with unsupported features (Christoph
      Hellwig)

 - Clear iocb->private at poll completion (Stefano)

* tag 'block-5.17-2022-02-24' of git://git.kernel.dk/linux-block:
  nvme-tcp: send H2CData PDUs based on MAXH2CDATA
  nvme: also mark passthrough-only namespaces ready in nvme_update_ns_info
  nvme: don't return an error from nvme_configure_metadata
  block: clear iocb->private in blkdev_bio_end_io_async()

2 years agoMerge tag 'io_uring-5.17-2022-02-23' of git://git.kernel.dk/linux-block
Linus Torvalds [Thu, 24 Feb 2022 19:08:15 +0000 (11:08 -0800)]
Merge tag 'io_uring-5.17-2022-02-23' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:

 - Add a conditional schedule point in io_add_buffers() (Eric)

 - Fix for a quiesce speedup merged in this release (Dylan)

 - Don't convert to jiffies for event timeout waiting, it's way too
   coarse when we accept a timespec as input (me)

* tag 'io_uring-5.17-2022-02-23' of git://git.kernel.dk/linux-block:
  io_uring: disallow modification of rsrc_data during quiesce
  io_uring: don't convert to jiffies for waiting on timeouts
  io_uring: add a schedule point in io_add_buffers()

2 years agoMerge tag 'platform-drivers-x86-v5.17-4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 24 Feb 2022 18:42:20 +0000 (10:42 -0800)]
Merge tag 'platform-drivers-x86-v5.17-4' of git://git./linux/kernel/git/pdx86/platform-drivers-x86

Pull more x86 platform driver fixes from Hans de Goede:
 "Two more fixes:

   - Fix suspend/resume regression on AMD Cezanne APUs in >= 5.16

   - Fix Microsoft Surface 3 battery readings"

* tag 'platform-drivers-x86-v5.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  surface: surface3_power: Fix battery readings on batteries without a serial number
  platform/x86: amd-pmc: Set QOS during suspend on CZN w/ timer wakeup

2 years agonet: mv643xx_eth: process retval from of_get_mac_address
Mauri Sandberg [Wed, 23 Feb 2022 14:23:37 +0000 (16:23 +0200)]
net: mv643xx_eth: process retval from of_get_mac_address

Obtaining a MAC address may be deferred in cases when the MAC is stored
in an NVMEM block, for example, and it may not be ready upon the first
retrieval attempt and return EPROBE_DEFER.

It is also possible that a port that does not rely on NVMEM has been
already created when getting the defer request. Thus, also the resources
allocated previously must be freed when doing a roll-back.

Fixes: 76723bca2802 ("net: mv643xx_eth: add DT parsing support")
Signed-off-by: Mauri Sandberg <maukka@ext.kapsi.fi>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220223142337.41757-1-maukka@ext.kapsi.fi
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoping: remove pr_err from ping_lookup
Xin Long [Thu, 24 Feb 2022 03:41:08 +0000 (22:41 -0500)]
ping: remove pr_err from ping_lookup

As Jakub noticed, prints should be avoided on the datapath.
Also, as packets would never come to the else branch in
ping_lookup(), remove pr_err() from ping_lookup().

Fixes: 35a79e64de29 ("ping: fix the dif and sdif check in ping_lookup")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/1ef3f2fcd31bd681a193b1fcf235eee1603819bd.1645674068.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoRevert "i40e: Fix reset bw limit when DCB enabled with 1 TC"
Mateusz Palczewski [Wed, 23 Feb 2022 17:53:47 +0000 (09:53 -0800)]
Revert "i40e: Fix reset bw limit when DCB enabled with 1 TC"

Revert of a patch that instead of fixing a AQ error when trying
to reset BW limit introduced several regressions related to
creation and managing TC. Currently there are errors when creating
a TC on both PF and VF.

Error log:
[17428.783095] i40e 0000:3b:00.1: AQ command Config VSI BW allocation per TC failed = 14
[17428.783107] i40e 0000:3b:00.1: Failed configuring TC map 0 for VSI 391
[17428.783254] i40e 0000:3b:00.1: AQ command Config VSI BW allocation per TC failed = 14
[17428.783259] i40e 0000:3b:00.1: Unable to  configure TC map 0 for VSI 391

This reverts commit 3d2504663c41104b4359a15f35670cfa82de1bbf.

Fixes: 3d2504663c41 (i40e: Fix reset bw limit when DCB enabled with 1 TC)
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220223175347.1690692-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoopenvswitch: Fix setting ipv6 fields causing hw csum failure
Paul Blakey [Wed, 23 Feb 2022 16:34:16 +0000 (18:34 +0200)]
openvswitch: Fix setting ipv6 fields causing hw csum failure

Ipv6 ttl, label and tos fields are modified without first
pulling/pushing the ipv6 header, which would have updated
the hw csum (if available). This might cause csum validation
when sending the packet to the stack, as can be seen in
the trace below.

Fix this by updating skb->csum if available.

Trace resulted by ipv6 ttl dec and then sending packet
to conntrack [actions: set(ipv6(hlimit=63)),ct(zone=99)]:
[295241.900063] s_pf0vf2: hw csum failure
[295241.923191] Call Trace:
[295241.925728]  <IRQ>
[295241.927836]  dump_stack+0x5c/0x80
[295241.931240]  __skb_checksum_complete+0xac/0xc0
[295241.935778]  nf_conntrack_tcp_packet+0x398/0xba0 [nf_conntrack]
[295241.953030]  nf_conntrack_in+0x498/0x5e0 [nf_conntrack]
[295241.958344]  __ovs_ct_lookup+0xac/0x860 [openvswitch]
[295241.968532]  ovs_ct_execute+0x4a7/0x7c0 [openvswitch]
[295241.979167]  do_execute_actions+0x54a/0xaa0 [openvswitch]
[295242.001482]  ovs_execute_actions+0x48/0x100 [openvswitch]
[295242.006966]  ovs_dp_process_packet+0x96/0x1d0 [openvswitch]
[295242.012626]  ovs_vport_receive+0x6c/0xc0 [openvswitch]
[295242.028763]  netdev_frame_hook+0xc0/0x180 [openvswitch]
[295242.034074]  __netif_receive_skb_core+0x2ca/0xcb0
[295242.047498]  netif_receive_skb_internal+0x3e/0xc0
[295242.052291]  napi_gro_receive+0xba/0xe0
[295242.056231]  mlx5e_handle_rx_cqe_mpwrq_rep+0x12b/0x250 [mlx5_core]
[295242.062513]  mlx5e_poll_rx_cq+0xa0f/0xa30 [mlx5_core]
[295242.067669]  mlx5e_napi_poll+0xe1/0x6b0 [mlx5_core]
[295242.077958]  net_rx_action+0x149/0x3b0
[295242.086762]  __do_softirq+0xd7/0x2d6
[295242.090427]  irq_exit+0xf7/0x100
[295242.093748]  do_IRQ+0x7f/0xd0
[295242.096806]  common_interrupt+0xf/0xf
[295242.100559]  </IRQ>
[295242.102750] RIP: 0033:0x7f9022e88cbd
[295242.125246] RSP: 002b:00007f9022282b20 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffda
[295242.132900] RAX: 0000000000000005 RBX: 0000000000000010 RCX: 0000000000000000
[295242.140120] RDX: 00007f9022282ba8 RSI: 00007f9022282a30 RDI: 00007f9014005c30
[295242.147337] RBP: 00007f9014014d60 R08: 0000000000000020 R09: 00007f90254a8340
[295242.154557] R10: 00007f9022282a28 R11: 0000000000000246 R12: 0000000000000000
[295242.161775] R13: 00007f902308c000 R14: 000000000000002b R15: 00007f9022b71f40

Fixes: 3fdbd1ce11e5 ("openvswitch: add ipv6 'set' action")
Signed-off-by: Paul Blakey <paulb@nvidia.com>
Link: https://lore.kernel.org/r/20220223163416.24096-1-paulb@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoipv6: prevent a possible race condition with lifetimes
Niels Dossche [Wed, 23 Feb 2022 13:19:56 +0000 (14:19 +0100)]
ipv6: prevent a possible race condition with lifetimes

valid_lft, prefered_lft and tstamp are always accessed under the lock
"lock" in other places. Reading these without taking the lock may result
in inconsistencies regarding the calculation of the valid and preferred
variables since decisions are taken on these fields for those variables.

Signed-off-by: Niels Dossche <dossche.niels@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Niels Dossche <niels.dossche@ugent.be>
Link: https://lore.kernel.org/r/20220223131954.6570-1-niels.dossche@ugent.be
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agonet/smc: Use a mutex for locking "struct smc_pnettable"
Fabio M. De Francesco [Wed, 23 Feb 2022 10:02:52 +0000 (11:02 +0100)]
net/smc: Use a mutex for locking "struct smc_pnettable"

smc_pnetid_by_table_ib() uses read_lock() and then it calls smc_pnet_apply_ib()
which, in turn, calls mutex_lock(&smc_ib_devices.mutex).

read_lock() disables preemption. Therefore, the code acquires a mutex while in
atomic context and it leads to a SAC bug.

Fix this bug by replacing the rwlock with a mutex.

Reported-and-tested-by: syzbot+4f322a6d84e991c38775@syzkaller.appspotmail.com
Fixes: 64e28b52c7a6 ("net/smc: add pnet table namespace support")
Confirmed-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Acked-by: Karsten Graul <kgraul@linux.ibm.com>
Link: https://lore.kernel.org/r/20220223100252.22562-1-fmdefrancesco@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agobnx2x: fix driver load from initrd
Manish Chopra [Wed, 23 Feb 2022 08:57:20 +0000 (00:57 -0800)]
bnx2x: fix driver load from initrd

Commit b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0") added
new firmware support in the driver with maintaining older firmware
compatibility. However, older firmware was not added in MODULE_FIRMWARE()
which caused missing firmware files in initrd image leading to driver load
failure from initrd. This patch adds MODULE_FIRMWARE() for older firmware
version to have firmware files included in initrd.

Fixes: b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215627
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Alok Prasad <palok@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Link: https://lore.kernel.org/r/20220223085720.12021-1-manishc@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoRevert "xen-netback: Check for hotplug-status existence before watching"
Marek Marczykowski-Górecki [Tue, 22 Feb 2022 00:18:17 +0000 (01:18 +0100)]
Revert "xen-netback: Check for hotplug-status existence before watching"

This reverts commit 2afeec08ab5c86ae21952151f726bfe184f6b23d.

The reasoning in the commit was wrong - the code expected to setup the
watch even if 'hotplug-status' didn't exist. In fact, it relied on the
watch being fired the first time - to check if maybe 'hotplug-status' is
already set to 'connected'. Not registering a watch for non-existing
path (which is the case if hotplug script hasn't been executed yet),
made the backend not waiting for the hotplug script to execute. This in
turns, made the netfront think the interface is fully operational, while
in fact it was not (the vif interface on xen-netback side might not be
configured yet).

This was a workaround for 'hotplug-status' erroneously being removed.
But since that is reverted now, the workaround is not necessary either.

More discussion at
https://lore.kernel.org/xen-devel/afedd7cb-a291-e773-8b0d-4db9b291fa98@ipxe.org/T/#u

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Reviewed-by: Michael Brown <mbrown@fensystems.co.uk>
Link: https://lore.kernel.org/r/20220222001817.2264967-2-marmarek@invisiblethingslab.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoRevert "xen-netback: remove 'hotplug-status' once it has served its purpose"
Marek Marczykowski-Górecki [Tue, 22 Feb 2022 00:18:16 +0000 (01:18 +0100)]
Revert "xen-netback: remove 'hotplug-status' once it has served its purpose"

This reverts commit 1f2565780e9b7218cf92c7630130e82dcc0fe9c2.

The 'hotplug-status' node should not be removed as long as the vif
device remains configured. Otherwise the xen-netback would wait for
re-running the network script even if it was already called (in case of
the frontent re-connecting). But also, it _should_ be removed when the
vif device is destroyed (for example when unbinding the driver) -
otherwise hotplug script would not configure the device whenever it
re-appear.

Moving removal of the 'hotplug-status' node was a workaround for nothing
calling network script after xen-netback module is reloaded. But when
vif interface is re-created (on xen-netback unbind/bind for example),
the script should be called, regardless of who does that - currently
this case is not handled by the toolstack, and requires manual
script call. Keeping hotplug-status=connected to skip the call is wrong
and leads to not configured interface.

More discussion at
https://lore.kernel.org/xen-devel/afedd7cb-a291-e773-8b0d-4db9b291fa98@ipxe.org/T/#u

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Link: https://lore.kernel.org/r/20220222001817.2264967-1-marmarek@invisiblethingslab.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge tag 'nvme-5.17-2022-02-24' of git://git.infradead.org/nvme into block-5.17
Jens Axboe [Thu, 24 Feb 2022 14:02:15 +0000 (07:02 -0700)]
Merge tag 'nvme-5.17-2022-02-24' of git://git.infradead.org/nvme into block-5.17

Pull NVMe fixes from Christoph:

"nvme fixes for Linux 5.17

 - send H2CData PDUs based on MAXH2CDATA (Varun Prakash)
 - fix passthrough to namespaces with unsupported features (me)"

* tag 'nvme-5.17-2022-02-24' of git://git.infradead.org/nvme:
  nvme-tcp: send H2CData PDUs based on MAXH2CDATA
  nvme: also mark passthrough-only namespaces ready in nvme_update_ns_info
  nvme: don't return an error from nvme_configure_metadata

2 years agosurface: surface3_power: Fix battery readings on batteries without a serial number
Hans de Goede [Thu, 24 Feb 2022 10:18:48 +0000 (11:18 +0100)]
surface: surface3_power: Fix battery readings on batteries without a serial number

The battery on the 2nd hand Surface 3 which I recently bought appears to
not have a serial number programmed in. This results in any I2C reads from
the registers containing the serial number failing with an I2C NACK.

This was causing mshw0011_bix() to fail causing the battery readings to
not work at all.

Ignore EREMOTEIO (I2C NACK) errors when retrieving the serial number and
continue with an empty serial number to fix this.

Fixes: b1f81b496b0d ("platform/x86: surface3_power: MSHW0011 rev-eng implementation")
BugLink: https://github.com/linux-surface/linux-surface/issues/608
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220224101848.7219-1-hdegoede@redhat.com
2 years agoplatform/x86: amd-pmc: Set QOS during suspend on CZN w/ timer wakeup
Mario Limonciello [Wed, 23 Feb 2022 17:52:37 +0000 (11:52 -0600)]
platform/x86: amd-pmc: Set QOS during suspend on CZN w/ timer wakeup

commit 59348401ebed ("platform/x86: amd-pmc: Add special handling for
timer based S0i3 wakeup") adds support for using another platform timer
in lieu of the RTC which doesn't work properly on some systems. This path
was validated and worked well before submission. During the 5.16-rc1 merge
window other patches were merged that caused this to stop working properly.

When this feature was used with 5.16-rc1 or later some OEM laptops with the
matching firmware requirements from that commit would shutdown instead of
program a timer based wakeup.

This was bisected to commit 8d89835b0467 ("PM: suspend: Do not pause
cpuidle in the suspend-to-idle path").  This wasn't supposed to cause any
negative impacts and also tested well on both Intel and ARM platforms.
However this changed the semantics of when CPUs are allowed to be in the
deepest state. For the AMD systems in question it appears this causes a
firmware crash for timer based wakeup.

It's hypothesized to be caused by the `amd-pmc` driver sending `OS_HINT`
and all the CPUs going into a deep state while the timer is still being
programmed. It's likely a firmware bug, but to avoid it don't allow setting
CPUs into the deepest state while using CZN timer wakeup path.

If later it's discovered that this also occurs from "regular" suspends
without a timer as well or on other silicon, this may be later expanded to
run in the suspend path for more scenarios.

Cc: stable@vger.kernel.org # 5.16+
Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/linux-acpi/BL1PR12MB51570F5BD05980A0DCA1F3F4E23A9@BL1PR12MB5157.namprd12.prod.outlook.com/T/#mee35f39c41a04b624700ab2621c795367f19c90e
Fixes: 8d89835b0467 ("PM: suspend: Do not pause cpuidle in the suspend-to-idle path")
Fixes: 23f62d7ab25b ("PM: sleep: Pause cpuidle later and resume it earlier during system transitions")
Fixes: 59348401ebed ("platform/x86: amd-pmc: Add special handling for timer based S0i3 wakeup"
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20220223175237.6209-1-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2 years agoMerge tag 'linux-can-next-for-5.18-20220224' of git://git.kernel.org/pub/scm/linux...
David S. Miller [Thu, 24 Feb 2022 10:43:28 +0000 (10:43 +0000)]
Merge tag 'linux-can-next-for-5.18-20220224' of git://git./linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
this is a pull request of 36 patches for net-next/master.

The first 5 patches are by me and update various CAN DT bindings.

Eric Dumazet's patch for the CAN GW replaces a costly
synchronize_rcu() by a call_rcu().

The next 2 patches by me enhance the CAN bit rate handling, the bit
rate checking is simplified and the arguments and local variables of
functions are marked as const.

A patch by me for the kvaser_usb driver removes a redundant variable.

The next patch by me lets the c_can driver use the default ethtool
drvinfo.

Minghao Chi's patch for the softing driver removes a redundant
variable.

Srinivas Neeli contributes an enhancement for the xilinx_can NAPI poll
function.

Vincent Mailhol's patch for the etas_es58x driver converts to
BITS_PER_TYPE() from of manual calculation.

The next 23 patches target the mcp251xfd driver and are by me. The
first 15 patches, add support for the internal PLL, which includes
simplifying runtime PM handling, better chip detection and error
handling after wakeup, and the PLL handling. The last 8 patches
prepare the driver to support multiple RX-FIFOs and runtime
configurable RX/TX rings. The actual runtime ring configuration via
ethtool will be added in a later patch series.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agocan: mcp251xfd: mcp251xfd_priv: introduce macros specifying the number of supported...
Marc Kleine-Budde [Mon, 11 Oct 2021 20:37:34 +0000 (22:37 +0200)]
can: mcp251xfd: mcp251xfd_priv: introduce macros specifying the number of supported TEF/RX/TX rings

This patch introduces macros to define the number of supported TEF, RX
and TX rings. As well as some assertions as sanity checks.

Link: https://lore.kernel.org/all/20220217103826.2299157-9-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: prepare for multiple RX-FIFOs
Marc Kleine-Budde [Sun, 10 Oct 2021 19:39:59 +0000 (21:39 +0200)]
can: mcp251xfd: prepare for multiple RX-FIFOs

This patch prepares the driver to use more than one RX-FIFO. Having a
bigger RX buffer is beneficial in high load situations, where the
system temporarily cannot keep up reading CAN frames from the chip.
Using a bigger RX buffer also allows to implement RX IRQ coalescing,
which will be added in a later patch series.

If using more than 1 RX-FIFO the driver has to figure out, which FIFOs
have RX'ed CAN frames pending. This is indicated by a set bit in the
RXIF register, which is positioned directly after the interrupt status
register INT. If more than 1 RX-FIFO is used, the driver reads both
registers in 1 transfer.

The mcp251xfd_handle_rxif() function iterates over all RX rings and
reads out the RX'ed CAN frames for for all pending FIFOs. To keep the
logic for the 1 RX-FIFO only case in mcp251xfd_handle_rxif() simple,
the driver marks that FIFO pending in mcp251xfd_ring_init().

The chip has a dedicated RX interrupt line to signal pending RX'ed
frames. If connected to an input GPIO and the driver will skip the
initial read of the interrupt status register (INT) and directly read
the pending RX'ed frames if the line is active. The driver assumes the
1st RX-FIFO pending (a read of the RXIF register would re-introduce
the skipped initial read of the INT register). Any other pending
RX-FIFO will be served in the main interrupt handler.

Link: https://lore.kernel.org/all/20220217103826.2299157-8-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: ring: update FIFO setup debug info
Marc Kleine-Budde [Wed, 4 Aug 2021 11:26:34 +0000 (13:26 +0200)]
can: mcp251xfd: ring: update FIFO setup debug info

The recent change of the order of the TX and RX FIFOs is not reflected
in the debug info of the FIFO setup. This patch adjust the order and
additionally prints the base address of each FIFO.

Since the mcp251xfd_ring_init() may fail due to wrongly configured
FIFOs, printing of the FIFO setup is moved there. In case of an error
it would not be printed in mcp251xfd_ring_init().

Link: https://lore.kernel.org/all/20220217103826.2299157-7-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: ring: mcp251xfd_ring_init(): checked RAM usage of ring setup
Marc Kleine-Budde [Tue, 3 Aug 2021 14:32:01 +0000 (16:32 +0200)]
can: mcp251xfd: ring: mcp251xfd_ring_init(): checked RAM usage of ring setup

With this patch the usage of the on-chip RAM is checked. In the
current driver the FIFO setup is fixed and always fits into the RAM.

With an upcoming patch series the ring and FIFO setup will be more
dynamic. Although using more RAM than available should not happen, but
add this safety check, just in case.

Link: https://lore.kernel.org/all/20220217103826.2299157-6-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: ring: change order of TX and RX FIFOs
Marc Kleine-Budde [Tue, 3 Aug 2021 14:33:48 +0000 (16:33 +0200)]
can: mcp251xfd: ring: change order of TX and RX FIFOs

This patch actually changes the order of the TX and RX FIFOs.

This gives the opportunity to minimize the number of SPI transfers in
the IRQ handler. The read of the IRQ status register and RX FIFO
status registers can be combined into single SPI transfer. If the RX
ring uses FIFO 1, the overall length of the transfer is smaller than
in the original layout, where the RX FIFO comes after the TX FIFO.

Link: https://lore.kernel.org/all/20220217103826.2299157-5-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: ring: prepare to change order of TX and RX FIFOs
Marc Kleine-Budde [Tue, 3 Aug 2021 14:32:01 +0000 (16:32 +0200)]
can: mcp251xfd: ring: prepare to change order of TX and RX FIFOs

This patch improves the initialization of the TX and RX rings. The
initialization functions are now called with pointers to the next free
address (in the on chip RAM) and next free hardware FIFO. The rings
are initialized using these values and the pointers are modified to
point to the next free elements.

This means the order of the mcp251xfd_ring_init_*() functions
specifies the order of the rings in the hardware FIFO. This makes it
possible to change the order of the TX and RX FIFOs, which is done in
the next patch.

This gives the opportunity to minimize the number of SPI transfers in
the IRQ handler. The read of the IRQ status register and RX FIFO
status registers can be combined into single SPI transfer. If the RX
ring uses FIFO 1, the overall length of the transfer is smaller than
in the original layout, where the RX FIFO comes after the TX FIFO.

Link: https://lore.kernel.org/all/20220217103826.2299157-4-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_ring_init(): split ring_init into separate functions
Marc Kleine-Budde [Tue, 3 Aug 2021 14:17:57 +0000 (16:17 +0200)]
can: mcp251xfd: mcp251xfd_ring_init(): split ring_init into separate functions

This patch splits the initialization of the TEF, TX and RX FIFO in the
mcp251xfd_ring_init() function into separate functions. This is a
preparation patch to move the RX FIFO in front of the TX FIFO.

Link: https://lore.kernel.org/all/20220217103826.2299157-3-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: introduce struct mcp251xfd_tx_ring::nr and ::fifo_nr and make use...
Marc Kleine-Budde [Fri, 21 May 2021 17:51:32 +0000 (19:51 +0200)]
can: mcp251xfd: introduce struct mcp251xfd_tx_ring::nr and ::fifo_nr and make use of it

This patch removes the hard coded assumption that the TX ring uses
hardware FIFO 1. This allows the hardware FIFO 1 to be used for RX and
the next free FIFO for TX.

This gives the opportunity to minimize the number of SPI transfers in
the IRQ handler. The read of the IRQ status register and RX FIFO
status registers can be combined into single SPI transfer. If the RX
ring uses FIFO 1, the overall length of the transfer is smaller than
in the original layout, where the RX FIFO comes after the TX FIFO.

Link: https://lore.kernel.org/all/20220217103826.2299157-2-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: add support for internal PLL
Marc Kleine-Budde [Fri, 16 Oct 2020 20:36:39 +0000 (22:36 +0200)]
can: mcp251xfd: add support for internal PLL

The PLL is enabled if the configured clock is less than or equal to 10 times
the max clock frequency.

The device will operate with two different SPI speeds. A slow speed determined
by the clock without the PLL enabled, and a fast speed derived from the
frequency with the PLL enabled.

Link: https://lore.kernel.org/all/20220207131047.282110-16-mkl@pengutronix.de
Link: https://lore.kernel.org/all/20201015124401.2766-3-mas@csselectronics.com
Co-developed-by: Magnus Aagaard Sørensen <mas@csselectronics.com>
Signed-off-by: Magnus Aagaard Sørensen <mas@csselectronics.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_register(): prepare to activate PLL after softreset
Marc Kleine-Budde [Mon, 19 Oct 2020 07:59:28 +0000 (09:59 +0200)]
can: mcp251xfd: mcp251xfd_register(): prepare to activate PLL after softreset

If the PLL is needed it must be switched on after chip reset. This
patch adds the required call to mcp251xfd_register().

Link: https://lore.kernel.org/all/20220207131047.282110-15-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_chip_clock_init(): prepare for PLL support, wait for OSC...
Marc Kleine-Budde [Mon, 19 Oct 2020 07:59:28 +0000 (09:59 +0200)]
can: mcp251xfd: mcp251xfd_chip_clock_init(): prepare for PLL support, wait for OSC ready

This patch prepares the mcp251xfd_chip_clock_init() function for PLL
support.

If the PLL is needed is must be switched on after chip reset. This
should be done in the mcp251xfd_chip_clock_init() function. Prepare
this function to wait for the OSC and PLL to be ready.

Link: https://lore.kernel.org/all/20220207131047.282110-14-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: __mcp251xfd_chip_set_mode(): prepare for PLL support: improve error...
Marc Kleine-Budde [Wed, 21 Oct 2020 08:33:58 +0000 (10:33 +0200)]
can: mcp251xfd: __mcp251xfd_chip_set_mode(): prepare for PLL support: improve error handling and diagnostics

This patch prepares the __mcp251xfd_chip_set_mode() function for PLL
support by adding more error checks and diagnostics.

Link: https://lore.kernel.org/all/20220207131047.282110-13-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_chip_wake(): renamed from mcp251xfd_chip_clock_enable()
Marc Kleine-Budde [Fri, 16 Oct 2020 18:51:13 +0000 (20:51 +0200)]
can: mcp251xfd: mcp251xfd_chip_wake(): renamed from mcp251xfd_chip_clock_enable()

This patch renames mcp251xfd_chip_clock_enable() into mcp251xfd_chip_wake() as
this function actually wakes the chip. Additionally the documentation is
adopted.

Link: https://lore.kernel.org/all/20220207131047.282110-12-mkl@pengutronix.de
Co-developed-by: Magnus Aagaard Sørensen <mas@csselectronics.com>
Signed-off-by: Magnus Aagaard Sørensen <mas@csselectronics.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_chip_timestamp_init(): factor out into separate function
Marc Kleine-Budde [Fri, 16 Oct 2020 16:02:15 +0000 (18:02 +0200)]
can: mcp251xfd: mcp251xfd_chip_timestamp_init(): factor out into separate function

This patch factors out the timestamp initialization from the clock
initialization.

This is a preparation patch for the PLL support, where clock and
timestamp init must be done separately.

Link: https://lore.kernel.org/all/20220207131047.282110-11-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_chip_softreset_check(): wait for OSC ready before accessing...
Marc Kleine-Budde [Tue, 27 Oct 2020 15:05:19 +0000 (16:05 +0100)]
can: mcp251xfd: mcp251xfd_chip_softreset_check(): wait for OSC ready before accessing chip

This patch changes the order of reading the Mode and Oscillator Ready
bits.

Instead of reading the Mode of the chip directly after reset, first
wait for the oscillator to get ready and the chip to fully start up.
Read the Mode after this.

Link: https://lore.kernel.org/all/20220207131047.282110-10-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_chip_wait_for_osc_ready(): prepare for PLL support
Marc Kleine-Budde [Thu, 22 Oct 2020 21:13:42 +0000 (23:13 +0200)]
can: mcp251xfd: mcp251xfd_chip_wait_for_osc_ready(): prepare for PLL support

The function mcp251xfd_chip_wait_for_osc_ready() polls the Oscillator
Control Register for the oscillator to get ready. By passing the
appropriate parameters (osc_reference and osc_mask) it can also poll
for PLL ready.

This patch adjusts the error message if the Oscillator and/or PLL fail
to get ready.

Link: https://lore.kernel.org/all/20220207131047.282110-9-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_chip_wait_for_osc_ready(): improve chip detection and error...
Marc Kleine-Budde [Thu, 22 Oct 2020 21:13:42 +0000 (23:13 +0200)]
can: mcp251xfd: mcp251xfd_chip_wait_for_osc_ready(): improve chip detection and error handling

The function mcp251xfd_chip_wait_for_osc_ready() polls the Oscillator
Control Register for the oscillator to get ready.

This is the first register the driver reads from. Reading implausible
values (all bits set or unset) can be caused by the chip starting up
after power on, waking up after sleep, or by the chip not being preset
at all. Add check for implausible register content
mcp251xfd_reg_invalid() to the regmap_read_poll_timeout() loop.

In case of a regmap_read_poll_timeout() returns a fatal error (and not
a timeout), forward it to the caller.

As mcp251xfd_chip_wait_for_osc_ready() will be called after the probe
function has finished, (currently during ifup), move error message
about failed chip detection from there into the probe function.

Link: https://lore.kernel.org/all/20220207131047.282110-8-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_chip_wait_for_osc_ready(): factor out into separate function
Marc Kleine-Budde [Tue, 20 Oct 2020 20:23:09 +0000 (22:23 +0200)]
can: mcp251xfd: mcp251xfd_chip_wait_for_osc_ready(): factor out into separate function

This patch factors out mcp251xfd_chip_wait_for_osc_ready() into a
separate function, it will be used in several places in the next
patches.

Link: https://lore.kernel.org/all/20220207131047.282110-7-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_chip_stop(): convert to a void function
Marc Kleine-Budde [Fri, 23 Oct 2020 06:41:25 +0000 (08:41 +0200)]
can: mcp251xfd: mcp251xfd_chip_stop(): convert to a void function

The mcp251xfd_chip_stop() function tries the best to stop the chip and
put it into sleep mode. It continues, even if some intermediate steps
fail. As none of the callers use the return value, let this function
return void.

Link: https://lore.kernel.org/all/20220207131047.282110-6-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_chip_sleep(): introduce function to bring chip into sleep...
Marc Kleine-Budde [Fri, 23 Oct 2020 06:41:25 +0000 (08:41 +0200)]
can: mcp251xfd: mcp251xfd_chip_sleep(): introduce function to bring chip into sleep mode

This patch adds a new function to bring the chip into sleep mode, and
replaces several occurrences of open coded variants.

Link: https://lore.kernel.org/all/20220207131047.282110-5-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_unregister(): simplify runtime PM handling
Marc Kleine-Budde [Fri, 23 Oct 2020 06:41:25 +0000 (08:41 +0200)]
can: mcp251xfd: mcp251xfd_unregister(): simplify runtime PM handling

The mcp251xfd driver supports runtime PM enabled kernels, but also
works on !CONFIG_PM configurations.

This patch simplifies the runtime PM handling in the
mcp251xfd_unregister(). In the CONFIG_PM case, runtime PM has been
enabled in the mcp251xfd_probe() function, so we can disable it here.
For !CONFIG_PM builds call mcp251xfd_clks_and_vdd_disable() directly.

Link: https://lore.kernel.org/all/20220207131047.282110-4-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_regmap_crc_read(): ignore CRC error only if solely OSC...
Marc Kleine-Budde [Thu, 29 Oct 2020 09:46:51 +0000 (10:46 +0100)]
can: mcp251xfd: mcp251xfd_regmap_crc_read(): ignore CRC error only if solely OSC register is read

MCP251XFD_REG_OSC is the first register the driver reads from. The
chip may be in deep sleep and the SPI transfer (i.e. the assertion of
the CS) will wake the chip up. This takes about 3ms. The CRC of this
transfer is wrong, or there isn't any chip at all, in this case the
CRC will be wrong, too. The driver ignores the CRC error and returns
the read data to the caller.

To avoid any confusion, this patch changes the
mcp251xfd_regmap_crc_read() function to only ignore the CRC error if
solely the OSC register is read. So when reading more than the OSC
registers at once, CRC errors are not ignored.

Link: https://lore.kernel.org/all/20220207131047.282110-3-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: mcp251xfd: mcp251xfd_reg_invalid(): rename from mcp251xfd_osc_invalid()
Marc Kleine-Budde [Wed, 21 Oct 2020 08:31:29 +0000 (10:31 +0200)]
can: mcp251xfd: mcp251xfd_reg_invalid(): rename from mcp251xfd_osc_invalid()

This patch renames mcp251xfd_osc_invalid() to mcp251xfd_reg_invalid(),
as it will be used for other registers than the "osc" register in a
later patch.

This patch also moves this function to more towards the beginning of
the file, to be available for other functions, too.

Link: https://lore.kernel.org/all/20220207131047.282110-2-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: etas_es58x: use BITS_PER_TYPE() instead of manual calculation
Vincent Mailhol [Sat, 12 Feb 2022 13:07:37 +0000 (22:07 +0900)]
can: etas_es58x: use BITS_PER_TYPE() instead of manual calculation

The input to the GENMASK() macro was calculated by hand. Replaced it
with a dedicated macro: BITS_PER_TYPE() which does the exact same job.

Link: https://lore.kernel.org/all/20220212130737.3008-1-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: xilinx_can: Add check for NAPI Poll function
Srinivas Neeli [Tue, 8 Feb 2022 16:20:53 +0000 (21:50 +0530)]
can: xilinx_can: Add check for NAPI Poll function

Add check for NAPI poll function to avoid enabling interrupts
with out completing the NAPI call.

Link: https://lore.kernel.org/all/20220208162053.39896-1-srinivas.neeli@xilinx.com
Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: softing: softing_netdev_open(): remove redundant ret variable
Minghao Chi [Wed, 12 Jan 2022 08:06:29 +0000 (08:06 +0000)]
can: softing: softing_netdev_open(): remove redundant ret variable

Return value from softing_startstop() directly instead of taking this
in another redundant variable.

Link: https://lore.kernel.org/all/20220112080629.667191-1-chi.minghao@zte.com.cn
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Signed-off-by: CGEL ZTE <cgel.zte@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: c_can: ethtool: use default drvinfo
Marc Kleine-Budde [Wed, 12 Jan 2022 20:34:41 +0000 (21:34 +0100)]
can: c_can: ethtool: use default drvinfo

The ethtool core implements a default drvinfo.

There's no need to replicate this in the driver, no additional
information is added, so remove this and rely on the default.

Link: https://lore.kernel.org/all/20220124215642.3474154-10-mkl@pengutronix.de
Cc: Dario Binacchi <dariobin@libero.it>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: kvaser_usb: kvaser_usb_send_cmd(): remove redundant variable actual_len
Marc Kleine-Budde [Sun, 7 Jun 2020 17:02:18 +0000 (19:02 +0200)]
can: kvaser_usb: kvaser_usb_send_cmd(): remove redundant variable actual_len

The function usb_bulk_msg() can be called with a NULL pointer as the
"actual_length" parameter. This patch removes this variable.

Link: https://lore.kernel.org/all/20220124215642.3474154-9-mkl@pengutronix.de
Cc: Jimmy Assarsson <extja@kvaser.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: bittiming: mark function arguments and local variables as const
Marc Kleine-Budde [Thu, 13 Jan 2022 14:34:07 +0000 (15:34 +0100)]
can: bittiming: mark function arguments and local variables as const

This patch marks the arguments of some functions as well as some local
variables as constant.

Link: https://lore.kernel.org/all/20220124215642.3474154-7-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: bittiming: can_validate_bitrate(): simplify bit rate checking
Marc Kleine-Budde [Thu, 19 Dec 2019 09:17:37 +0000 (10:17 +0100)]
can: bittiming: can_validate_bitrate(): simplify bit rate checking

This patch simplifies the validation of the fixed bit rates. If a
supported bit rate is found, directly return 0.

If no valid bit rate is found return -EINVAL;

Link: https://lore.kernel.org/all/20220124215642.3474154-6-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agocan: gw: use call_rcu() instead of costly synchronize_rcu()
Eric Dumazet [Mon, 7 Feb 2022 19:07:06 +0000 (11:07 -0800)]
can: gw: use call_rcu() instead of costly synchronize_rcu()

Commit fb8696ab14ad ("can: gw: synchronize rcu operations
before removing gw job entry") added three synchronize_rcu() calls
to make sure one rcu grace period was observed before freeing
a "struct cgw_job" (which are tiny objects).

This should be converted to call_rcu() to avoid adding delays
in device / network dismantles.

Use the rcu_head that was already in struct cgw_job,
not yet used.

Link: https://lore.kernel.org/all/20220207190706.1499190-1-eric.dumazet@gmail.com
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Oliver Hartkopp <socketcan@hartkopp.net>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agodt-binding: can: m_can: include common CAN controller bindings
Marc Kleine-Budde [Wed, 11 Nov 2020 08:08:47 +0000 (09:08 +0100)]
dt-binding: can: m_can: include common CAN controller bindings

Since commit

1f9234401ce0 ("dt-bindings: can: add can-controller.yaml")

there is a common CAN controller binding. Add this to the m_can
binding.

Link: https://lore.kernel.org/all/20220124220653.3477172-4-mkl@pengutronix.de
Reviewed-by: Chandrasekar Ramakrishnan <rcsekar@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agodt-binding: can: m_can: fix indention of table in bosch,mram-cfg description
Marc Kleine-Budde [Tue, 18 Jan 2022 14:18:50 +0000 (15:18 +0100)]
dt-binding: can: m_can: fix indention of table in bosch,mram-cfg description

This patch fixes the indention of the table in the description of the
bosch,mram-cfg property.

Link: https://lore.kernel.org/all/20220217101111.2291151-1-mkl@pengutronix.de
Reviewed-by: Chandrasekar Ramakrishnan <rcsekar@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agodt-binding: can: m_can: list Chandrasekar Ramakrishnan as maintainer
Marc Kleine-Budde [Thu, 17 Feb 2022 11:36:09 +0000 (12:36 +0100)]
dt-binding: can: m_can: list Chandrasekar Ramakrishnan as maintainer

Since Sriram Dash's email bounces, change the maintainer entry to
Chandrasekar Ramakrishnan. Chandrasekar Ramakrishnan is already listed
as a maintainer in the MAINTAINERS file.

Link: https://lore.kernel.org/all/20220217113839.2311417-1-mkl@pengutronix.de
Cc: Chandrasekar Ramakrishnan <rcsekar@samsung.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agodt-binding: can: sun4i_can: include common CAN controller bindings
Marc Kleine-Budde [Wed, 11 Nov 2020 08:08:47 +0000 (09:08 +0100)]
dt-binding: can: sun4i_can: include common CAN controller bindings

Since commit

1f9234401ce0 ("dt-bindings: can: add can-controller.yaml")

there is a common CAN controller binding. Add this to the sun4i_can
binding.

Link: https://lore.kernel.org/all/20220124220653.3477172-3-mkl@pengutronix.de
Cc: Evgeny Boger <boger@wirenboard.com>
Cc: Gerhard Bertelsmann <info@gerhard-bertelsmann.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agodt-binding: can: mcp251xfd: include common CAN controller bindings
Marc Kleine-Budde [Wed, 11 Nov 2020 08:08:47 +0000 (09:08 +0100)]
dt-binding: can: mcp251xfd: include common CAN controller bindings

Since commit

1f9234401ce0 ("dt-bindings: can: add can-controller.yaml")

there is a common CAN controller binding. Add this to the mcp251xfd
binding.

Link: https://lore.kernel.org/all/20220124220653.3477172-2-mkl@pengutronix.de
Cc: Manivannan Sadhasivam <mani@kernel.org>
Cc: Thomas Kopp <thomas.kopp@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2 years agoMerge branch 'add-ethtool-support-for-completion-queue-event-size'
Jakub Kicinski [Thu, 24 Feb 2022 04:33:15 +0000 (20:33 -0800)]
Merge branch 'add-ethtool-support-for-completion-queue-event-size'

Subbaraya Sundeep says:

====================
Add ethtool support for completion queue event size

After a packet is sent or received by NIC then NIC posts
a completion queue event which consists of transmission status
(like send success or error) and received status(like
pointers to packet fragments). These completion events may
also use a ring similar to rx and tx rings. This patchset
introduces cqe-size ethtool parameter to modify the size
of the completion queue event if NIC hardware has that capability.
A bigger completion queue event can have more receive buffer pointers
inturn NIC can transfer a bigger frame from wire as long as
hardware(MAC) receive frame size limit is not exceeded.

Patch 1 adds support setting/getting cqe-size via
ethtool -G and ethtool -g.

Patch 2 includes octeontx2 driver changes to use
completion queue event size set from ethtool -G.
====================

Link: https://lore.kernel.org/r/1645555153-4932-1-git-send-email-sbhatta@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoocteontx2-pf: Vary completion queue event size
Subbaraya Sundeep [Tue, 22 Feb 2022 18:39:13 +0000 (00:09 +0530)]
octeontx2-pf: Vary completion queue event size

Completion Queue Entry(CQE) is a descriptor written
by hardware to notify software about the send and
receive completion status. The CQE can be of size
128 or 512 bytes. A 512 bytes CQE can hold more receive
fragments pointers compared to 128 bytes CQE. This
patch enables to modify CQE size using:
<ethtool -G cqe-size N>.

Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoethtool: add support to set/get completion queue event size
Subbaraya Sundeep [Tue, 22 Feb 2022 18:39:12 +0000 (00:09 +0530)]
ethtool: add support to set/get completion queue event size

Add support to set completion queue event size via ethtool -G
parameter and get it via ethtool -g parameter.

~ # ./ethtool -G eth0 cqe-size 512
~ # ./ethtool -g eth0
Ring parameters for eth0:
Pre-set maximums:
RX:             1048576
RX Mini:        n/a
RX Jumbo:       n/a
TX:             1048576
Current hardware settings:
RX:             256
RX Mini:        n/a
RX Jumbo:       n/a
TX:             4096
RX Buf Len:             2048
CQE Size:                128

Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge tag 'mlx5-fixes-2022-02-23' of git://git.kernel.org/pub/scm/linux/kernel/git...
Jakub Kicinski [Thu, 24 Feb 2022 04:30:00 +0000 (20:30 -0800)]
Merge tag 'mlx5-fixes-2022-02-23' of git://git./linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5 fixes 2022-02-22

This series provides bug fixes to mlx5 driver.
Please pull and let me know if there is any problem.

* tag 'mlx5-fixes-2022-02-23' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
  net/mlx5e: Fix VF min/max rate parameters interchange mistake
  net/mlx5e: Add missing increment of count
  net/mlx5e: MPLSoUDP decap, fix check for unsupported matches
  net/mlx5e: Fix MPLSoUDP encap to use MPLS action information
  net/mlx5e: Add feature check for set fec counters
  net/mlx5e: TC, Skip redundant ct clear actions
  net/mlx5e: TC, Reject rules with forward and drop actions
  net/mlx5e: TC, Reject rules with drop and modify hdr action
  net/mlx5e: kTLS, Use CHECKSUM_UNNECESSARY for device-offloaded packets
  net/mlx5e: Fix wrong return value on ioctl EEPROM query failure
  net/mlx5: Fix possible deadlock on rule deletion
  net/mlx5: Fix tc max supported prio for nic mode
  net/mlx5: Fix wrong limitation of metadata match on ecpf
  net/mlx5: Update log_max_qp value to be 17 at most
  net/mlx5: DR, Fix the threshold that defines when pool sync is initiated
  net/mlx5: DR, Don't allow match on IP w/o matching on full ethertype/ip_version
  net/mlx5: DR, Fix slab-out-of-bounds in mlx5_cmd_dr_create_fte
  net/mlx5: DR, Cache STE shadow memory
  net/mlx5: Update the list of the PCI supported devices
====================

Link: https://lore.kernel.org/r/20220224001123.365265-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge tag 'devicetree-fixes-for-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 24 Feb 2022 01:25:22 +0000 (17:25 -0800)]
Merge tag 'devicetree-fixes-for-5.17-2' of git://git./linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Update some maintainers email addresses

 - Fix handling of elfcorehdr reservation for crash dump kernel

 - Fix unittest expected warnings text

* tag 'devicetree-fixes-for-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: update Roger Quadros email
  MAINTAINERS: sifive: drop Yash Shah
  of/fdt: move elfcorehdr reservation early for crash dump kernel
  of: unittest: update text of expected warnings

2 years agoMerge tag 'selinux-pr-20220223' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 24 Feb 2022 01:19:55 +0000 (17:19 -0800)]
Merge tag 'selinux-pr-20220223' of git://git./linux/kernel/git/pcmoore/selinux

Pull selinux fix from Paul Moore:
 "A second small SELinux fix which addresses an incorrect
  mutex_is_locked() check"

* tag 'selinux-pr-20220223' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: fix misuse of mutex_is_locked()

2 years agonet/mlx5e: Fix VF min/max rate parameters interchange mistake
Gal Pressman [Mon, 21 Feb 2022 15:54:34 +0000 (17:54 +0200)]
net/mlx5e: Fix VF min/max rate parameters interchange mistake

The VF min and max rate were passed incorrectly and resulted in wrongly
interchanging them. Fix the order of parameters in
mlx5_esw_qos_set_vport_rate().

Fixes: d7df09f5e7b4 ("net/mlx5: E-switch, Enable vport QoS on demand")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5e: Add missing increment of count
Lama Kayal [Mon, 21 Feb 2022 10:26:11 +0000 (12:26 +0200)]
net/mlx5e: Add missing increment of count

Add mistakenly missing increment of count variable when looping over
output buffer in mlx5e_self_test().

This resolves the issue of garbage values output when querying with self
test via ethtool.

before:
$ ethtool -t eth2
The test result is PASS
The test extra info:
Link Test        0
Speed Test       1768697188
Health Test      758528120
Loopback Test    3288687

after:
$ ethtool -t eth2
The test result is PASS
The test extra info:
Link Test        0
Speed Test       0
Health Test      0
Loopback Test    0

Fixes: 7990b1b5e8bd ("net/mlx5e: loopback test is not supported in switchdev mode")
Signed-off-by: Lama Kayal <lkayal@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5e: MPLSoUDP decap, fix check for unsupported matches
Maor Dickman [Thu, 6 Jan 2022 12:46:24 +0000 (14:46 +0200)]
net/mlx5e: MPLSoUDP decap, fix check for unsupported matches

Currently offload of rule on bareudp device require tunnel key
in order to match on mpls fields and without it the mpls fields
are ignored, this is incorrect due to the fact udp tunnel doesn't
have key to match on.

Fix by returning error in case flow is matching on tunnel key.

Fixes: 72046a91d134 ("net/mlx5e: Allow to match on mpls parameters")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5e: Fix MPLSoUDP encap to use MPLS action information
Maor Dickman [Thu, 6 Jan 2022 12:10:18 +0000 (14:10 +0200)]
net/mlx5e: Fix MPLSoUDP encap to use MPLS action information

Currently the MPLSoUDP encap builds the MPLS header using encap action
information (tunnel id, ttl and tos) instead of the MPLS action
information (label, ttl, tc and bos) which is wrong.

Fix by storing the MPLS action information during the flow action
parse and later using it to create the encap MPLS header.

Fixes: f828ca6a2fb6 ("net/mlx5e: Add support for hw encapsulation of MPLS over UDP")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5e: Add feature check for set fec counters
Lama Kayal [Tue, 1 Feb 2022 09:24:41 +0000 (11:24 +0200)]
net/mlx5e: Add feature check for set fec counters

Fec counters support is checked via the PCAM feature_cap_mask,
bit 0: PPCNT_counter_group_Phy_statistical_counter_group.
Add feature check to avoid faulty behavior.

Fixes: 0a1498ebfa55 ("net/mlx5e: Expose FEC counters via ethtool")
Signed-off-by: Lama Kayal <lkayal@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5e: TC, Skip redundant ct clear actions
Roi Dayan [Thu, 3 Feb 2022 07:42:19 +0000 (09:42 +0200)]
net/mlx5e: TC, Skip redundant ct clear actions

Offload of ct clear action is just resetting the reg_c register.
It's done by allocating modify hdr resources which is limited.
Doing it multiple times is redundant and wasting modify hdr resources
and if resources depleted the driver will fail offloading the rule.
Ignore redundant ct clear actions after the first one.

Fixes: 806401c20a0f ("net/mlx5e: CT, Fix multiple allocations and memleak of mod acts")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Ariel Levkovich <lariel@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5e: TC, Reject rules with forward and drop actions
Roi Dayan [Mon, 17 Jan 2022 13:00:30 +0000 (15:00 +0200)]
net/mlx5e: TC, Reject rules with forward and drop actions

Such rules are redundant but allowed and passed to the driver.
The driver does not support offloading such rules so return an error.

Fixes: 03a9d11e6eeb ("net/mlx5e: Add TC drop and mirred/redirect action parsing for SRIOV offloads")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5e: TC, Reject rules with drop and modify hdr action
Roi Dayan [Tue, 4 Jan 2022 08:38:02 +0000 (10:38 +0200)]
net/mlx5e: TC, Reject rules with drop and modify hdr action

This kind of action is not supported by firmware and generates a
syndrome.

kernel: mlx5_core 0000:08:00.0: mlx5_cmd_check:777:(pid 102063): SET_FLOW_TABLE_ENTRY(0x936) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0x8708c3)

Fixes: d7e75a325cb2 ("net/mlx5e: Add offloading of E-Switch TC pedit (header re-write) actions")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5e: kTLS, Use CHECKSUM_UNNECESSARY for device-offloaded packets
Tariq Toukan [Mon, 31 Jan 2022 08:26:19 +0000 (10:26 +0200)]
net/mlx5e: kTLS, Use CHECKSUM_UNNECESSARY for device-offloaded packets

For RX TLS device-offloaded packets, the HW spec guarantees checksum
validation for the offloaded packets, but does not define whether the
CQE.checksum field matches the original packet (ciphertext) or
the decrypted one (plaintext). This latitude allows architetctural
improvements between generations of chips, resulting in different decisions
regarding the value type of CQE.checksum.

Hence, for these packets, the device driver should not make use of this CQE
field. Here we block CHECKSUM_COMPLETE usage for RX TLS device-offloaded
packets, and use CHECKSUM_UNNECESSARY instead.

Value of the packet's tcp_hdr.csum is not modified by the HW, and it always
matches the original ciphertext.

Fixes: 1182f3659357 ("net/mlx5e: kTLS, Add kTLS RX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5e: Fix wrong return value on ioctl EEPROM query failure
Gal Pressman [Wed, 2 Feb 2022 14:07:21 +0000 (16:07 +0200)]
net/mlx5e: Fix wrong return value on ioctl EEPROM query failure

The ioctl EEPROM query wrongly returns success on read failures, fix
that by returning the appropriate error code.

Fixes: bb64143eee8c ("net/mlx5e: Add ethtool support for dump module EEPROM")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5: Fix possible deadlock on rule deletion
Maor Gottlieb [Mon, 24 Jan 2022 19:25:04 +0000 (21:25 +0200)]
net/mlx5: Fix possible deadlock on rule deletion

Add missing call to up_write_ref_node() which releases the semaphore
in case the FTE doesn't have destinations, such in drop rule case.

Fixes: 465e7baab6d9 ("net/mlx5: Fix deletion of duplicate rules")
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5: Fix tc max supported prio for nic mode
Chris Mi [Tue, 14 Dec 2021 01:52:53 +0000 (03:52 +0200)]
net/mlx5: Fix tc max supported prio for nic mode

Only prio 1 is supported if firmware doesn't support ignore flow
level for nic mode. The offending commit removed the check wrongly.
Add it back.

Fixes: 9a99c8f1253a ("net/mlx5e: E-Switch, Offload all chain 0 priorities when modify header and forward action is not supported")
Signed-off-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5: Fix wrong limitation of metadata match on ecpf
Ariel Levkovich [Fri, 28 Jan 2022 23:39:24 +0000 (01:39 +0200)]
net/mlx5: Fix wrong limitation of metadata match on ecpf

Match metadata support check returns false for ecpf device.
However, this support does exist for ecpf and therefore this
limitation should be removed to allow feature such as stacked
devices and internal port offloaded to be supported.

Fixes: 92ab1eb392c6 ("net/mlx5: E-Switch, Enable vport metadata matching if firmware supports it")
Signed-off-by: Ariel Levkovich <lariel@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5: Update log_max_qp value to be 17 at most
Maher Sanalla [Wed, 16 Feb 2022 09:01:04 +0000 (11:01 +0200)]
net/mlx5: Update log_max_qp value to be 17 at most

Currently, log_max_qp value is dependent on what FW reports as its max capability.
In reality, due to a bug, some FWs report a value greater than 17, even though they
don't support log_max_qp > 17.

This FW issue led the driver to exhaust memory on startup.
Thus, log_max_qp value is set to be no more than 17 regardless
of what FW reports, as it was before the cited commit.

Fixes: f79a609ea6bf ("net/mlx5: Update log_max_qp value to FW max capability")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Avihai Horon <avihaih@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5: DR, Fix the threshold that defines when pool sync is initiated
Yevgeny Kliteynik [Wed, 29 Dec 2021 20:22:05 +0000 (22:22 +0200)]
net/mlx5: DR, Fix the threshold that defines when pool sync is initiated

When deciding whether to start syncing and actually free all the "hot"
ICM chunks, we need to consider the type of the ICM chunks that we're
dealing with. For instance, the amount of available ICM for MODIFY_ACTION
is significantly lower than the usual STE ICM, so the threshold should
account for that - otherwise we can deplete MODIFY_ACTION memory just by
creating and deleting the same modify header action in a continuous loop.

This patch replaces the hard-coded threshold with a dynamic value.

Fixes: 1c58651412bb ("net/mlx5: DR, ICM memory pools sync optimization")
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5: DR, Don't allow match on IP w/o matching on full ethertype/ip_version
Yevgeny Kliteynik [Thu, 13 Jan 2022 12:52:48 +0000 (14:52 +0200)]
net/mlx5: DR, Don't allow match on IP w/o matching on full ethertype/ip_version

Currently SMFS allows adding rule with matching on src/dst IP w/o matching
on full ethertype or ip_version, which is not supported by HW.
This patch fixes this issue and adds the check as it is done in DMFS.

Fixes: 26d688e33f88 ("net/mlx5: DR, Add Steering entry (STE) utilities")
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5: DR, Fix slab-out-of-bounds in mlx5_cmd_dr_create_fte
Yevgeny Kliteynik [Tue, 11 Jan 2022 01:00:03 +0000 (03:00 +0200)]
net/mlx5: DR, Fix slab-out-of-bounds in mlx5_cmd_dr_create_fte

When adding a rule with 32 destinations, we hit the following out-of-band
access issue:

  BUG: KASAN: slab-out-of-bounds in mlx5_cmd_dr_create_fte+0x18ee/0x1e70

This patch fixes the issue by both increasing the allocated buffers to
accommodate for the needed actions and by checking the number of actions
to prevent this issue when a rule with too many actions is provided.

Fixes: 1ffd498901c1 ("net/mlx5: DR, Increase supported num of actions to 32")
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5: DR, Cache STE shadow memory
Yevgeny Kliteynik [Thu, 23 Dec 2021 23:07:30 +0000 (01:07 +0200)]
net/mlx5: DR, Cache STE shadow memory

During rule insertion on each ICM memory chunk we also allocate shadow memory
used for management. This includes the hw_ste, dr_ste and miss list per entry.
Since the scale of these allocations is large we noticed a performance hiccup
that happens once malloc and free are stressed.
In extreme usecases when ~1M chunks are freed at once, it might take up to 40
seconds to complete this, up to the point the kernel sees this as self-detected
stall on CPU:

 rcu: INFO: rcu_sched self-detected stall on CPU

To resolve this we will increase the reuse of shadow memory.
Doing this we see that a time in the aforementioned usecase dropped from ~40
seconds to ~8-10 seconds.

Fixes: 29cf8febd185 ("net/mlx5: DR, ICM pool memory allocator")
Signed-off-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agonet/mlx5: Update the list of the PCI supported devices
Meir Lichtinger [Mon, 10 Jan 2022 08:14:41 +0000 (10:14 +0200)]
net/mlx5: Update the list of the PCI supported devices

Add the upcoming BlueField-4 and ConnectX-8 device IDs.

Fixes: 2e9d3e83ab82 ("net/mlx5: Update the list of the PCI supported devices")
Signed-off-by: Meir Lichtinger <meirl@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2 years agoRevert "vlan: move dev_put into vlan_dev_uninit"
Xin Long [Wed, 23 Feb 2022 04:54:57 +0000 (23:54 -0500)]
Revert "vlan: move dev_put into vlan_dev_uninit"

This reverts commit d6ff94afd90b0ce8d1715f8ef77d4347d7a7f2c0.

Since commit faab39f63c1f ("net: allow out-of-order netdev unregistration")
fixed the issue in a better way, this patch is to revert the previous fix,
as it might bring back the old problem fixed by commit 563bcbae3ba2 ("net:
vlan: fix a UAF in vlan_dev_real_dev()").

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/563c0a6e48510ccbff9ef4715de37209695e9fc4.1645592097.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge tag 'for-5.17/parisc-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Wed, 23 Feb 2022 20:06:23 +0000 (12:06 -0800)]
Merge tag 'for-5.17/parisc-4' of git://git./linux/kernel/git/deller/parisc-linux

Pull parisc unaligned handler fixes from Helge Deller:
 "Two patches which fix a few bugs in the unalignment handlers.

  The fldd and fstd instructions weren't handled at all on 32-bit
  kernels, the stw instruction didn't check for fault errors and the
  fldw_l and ldw_m were handled wrongly as integer vs floating point
  instructions.

  Both patches are tagged for stable series"

* tag 'for-5.17/parisc-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc/unaligned: Fix ldw() and stw() unalignment handlers
  parisc/unaligned: Fix fldd and fstd unaligned handlers on 32-bit kernel

2 years agoMerge tag 'hwmon-for-v5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 23 Feb 2022 19:51:35 +0000 (11:51 -0800)]
Merge tag 'hwmon-for-v5.17-rc6' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "Fix two old bugs and one new bug in the hwmon subsystem:

   - In pmbus core, clear pmbus fault/warning status bits after read to
     follow PMBus standard

   - In hwmon core, handle failure to register sensor with thermal zone
     correctly

   - In ntc_thermal driver, use valid thermistor names for Samsung
     thermistors"

* tag 'hwmon-for-v5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (pmbus) Clear pmbus fault/warning bits after read
  hwmon: Handle failure to register sensor with thermal zone correctly
  hwmon: (ntc_thermistor) Underscore Samsung thermistor

2 years agoMerge tag 'slab-for-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka...
Linus Torvalds [Wed, 23 Feb 2022 19:33:12 +0000 (11:33 -0800)]
Merge tag 'slab-for-5.17-rc6' of git://git./linux/kernel/git/vbabka/slab

Pull slab fixes from Vlastimil Babka:

 - Build fix (workaround) for clang.

 - Fix a /proc/kcore based slabinfo script broken by struct slab changes
   in 5.17-rc1.

* tag 'slab-for-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
  tools/cgroup/slabinfo: update to work with struct slab
  slab: remove __alloc_size attribute from __kmalloc_track_caller

2 years agoPCI: Mark all AMD Navi10 and Navi14 GPU ATS as broken
Alex Deucher [Tue, 22 Feb 2022 16:08:01 +0000 (11:08 -0500)]
PCI: Mark all AMD Navi10 and Navi14 GPU ATS as broken

There are enough VBIOS escapes without the proper workaround that some
users still hit this.  Microsoft never productized ATS on Windows so OEM
platforms that were Windows-only didn't always validate ATS.

The advantages of ATS are not worth it compared to the potential
instabilities on harvested boards.  Disable ATS on all Navi10 and Navi14
boards.

Symptoms include:

  amdgpu 0000:07:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0007 address=0xffffc02000 flags=0x0000]
  AMD-Vi: Event logged [IO_PAGE_FAULT device=07:00.0 domain=0x0007 address=0xffffc02000 flags=0x0000]
  [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma0 timeout, signaled seq=6047, emitted seq=6049
  amdgpu 0000:07:00.0: amdgpu: GPU reset begin!
  amdgpu 0000:07:00.0: amdgpu: GPU reset succeeded, trying to resume
  amdgpu 0000:07:00.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring sdma0 test failed (-110)
  [drm:amdgpu_device_ip_resume_phase2 [amdgpu]] *ERROR* resume of IP block <sdma_v4_0> failed -110
  amdgpu 0000:07:00.0: amdgpu: GPU reset(1) failed

Related commits:

  e8946a53e2a6 ("PCI: Mark AMD Navi14 GPU ATS as broken")
  a2da5d8cc0b0 ("PCI: Mark AMD Raven iGPU ATS as broken in some platforms")
  45beb31d3afb ("PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken")
  5e89cd303e3a ("PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken")
  d28ca864c493 ("PCI: Mark AMD Stoney Radeon R7 GPU ATS as broken")
  9b44b0b09dec ("PCI: Mark AMD Stoney GPU ATS as broken")

[bhelgaas: add symptoms and related commits]
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1760
Link: https://lore.kernel.org/r/20220222160801.841643-1-alexander.deucher@amd.com
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Guchun Chen <guchun.chen@amd.com>
2 years agoixgbe: Remove non-inclusive language
Piotr Skajewski [Tue, 11 Jan 2022 10:27:23 +0000 (11:27 +0100)]
ixgbe: Remove non-inclusive language

Remove non-inclusive language from the driver.

Additionally correct the duplication "from from"
reported by checkpatch after the changes above.

Signed-off-by: Piotr Skajewski <piotrx.skajewski@intel.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2 years agoixgbevf: clean up some inconsistent indenting
Yang Li [Tue, 8 Feb 2022 01:35:07 +0000 (09:35 +0800)]
ixgbevf: clean up some inconsistent indenting

Eliminate the follow smatch warning:
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:2756
ixgbevf_alloc_q_vector() warn: inconsistent indenting

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2 years agoparisc/unaligned: Fix ldw() and stw() unalignment handlers
Helge Deller [Fri, 18 Feb 2022 22:40:14 +0000 (23:40 +0100)]
parisc/unaligned: Fix ldw() and stw() unalignment handlers

Fix 3 bugs:

a) emulate_stw() doesn't return the error code value, so faulting
instructions are not reported and aborted.

b) Tell emulate_ldw() to handle fldw_l as floating point instruction

c) Tell emulate_ldw() to handle ldw_m as integer instruction

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
2 years agoparisc/unaligned: Fix fldd and fstd unaligned handlers on 32-bit kernel
Helge Deller [Fri, 18 Feb 2022 08:25:20 +0000 (09:25 +0100)]
parisc/unaligned: Fix fldd and fstd unaligned handlers on 32-bit kernel

Usually the kernel provides fixup routines to emulate the fldd and fstd
floating-point instructions if they load or store 8-byte from/to a not
natuarally aligned memory location.

On a 32-bit kernel I noticed that those unaligned handlers didn't worked and
instead the application got a SEGV.
While checking the code I found two problems:

First, the OPCODE_FLDD_L and OPCODE_FSTD_L cases were ifdef'ed out by the
CONFIG_PA20 option, and as such those weren't built on a pure 32-bit kernel.
This is now fixed by moving the CONFIG_PA20 #ifdef to prevent the compilation
of OPCODE_LDD_L and OPCODE_FSTD_L only, and handling the fldd and fstd
instructions.

The second problem are two bugs in the 32-bit inline assembly code, where the
wrong registers where used. The calculation of the natural alignment used %2
(vall) instead of %3 (ior), and the first word was stored back to address %1
(valh) instead of %3 (ior).

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
2 years agonet: Correct wrong BH disable in hard-interrupt.
Sebastian Andrzej Siewior [Wed, 16 Feb 2022 17:50:46 +0000 (18:50 +0100)]
net: Correct wrong BH disable in hard-interrupt.

I missed the obvious case where netif_ix() is invoked from hard-IRQ
context.

Disabling bottom halves is only needed in process context. This ensures
that the code remains on the current CPU and that the soft-interrupts
are processed at local_bh_enable() time.
In hard- and soft-interrupt context this is already the case and the
soft-interrupts will be processed once the context is left (at irq-exit
time).

Disable bottom halves if neither hard-interrupts nor soft-interrupts are
disabled. Update the kernel-doc, mention that interrupts must be enabled
if invoked from process context.

Fixes: baebdf48c3600 ("net: dev: Makes sure netif_rx() can be invoked in any context.")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/Yg05duINKBqvnxUc@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agonvme-tcp: send H2CData PDUs based on MAXH2CDATA
Varun Prakash [Sat, 22 Jan 2022 16:57:44 +0000 (22:27 +0530)]
nvme-tcp: send H2CData PDUs based on MAXH2CDATA

As per NVMe/TCP specification (revision 1.0a, section 3.6.2.3)
Maximum Host to Controller Data length (MAXH2CDATA): Specifies the
maximum number of PDU-Data bytes per H2CData PDU in bytes. This value
is a multiple of dwords and should be no less than 4,096.

Current code sets H2CData PDU data_length to r2t_length,
it does not check MAXH2CDATA value. Fix this by setting H2CData PDU
data_length to min(req->h2cdata_left, queue->maxh2cdata).

Also validate MAXH2CDATA value returned by target in ICResp PDU,
if it is not a multiple of dword or if it is less than 4096 return
-EINVAL from nvme_tcp_init_connection().

Signed-off-by: Varun Prakash <varun@chelsio.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2 years agonvme: also mark passthrough-only namespaces ready in nvme_update_ns_info
Christoph Hellwig [Wed, 16 Feb 2022 13:14:58 +0000 (14:14 +0100)]
nvme: also mark passthrough-only namespaces ready in nvme_update_ns_info

Commit e7d65803e2bb ("nvme-multipath: revalidate paths during rescan")
introduced the NVME_NS_READY flag, which nvme_path_is_disabled() uses
to check if a path can be used or not.  We also need to set this flag
for devices that fail the ZNS feature validation and which are available
through passthrough devices only to that they can be used in multipathing
setups.

Fixes: e7d65803e2bb ("nvme-multipath: revalidate paths during rescan")
Reported-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Tested-by: Kanchan Joshi <joshi.k@samsung.com>
2 years agonvme: don't return an error from nvme_configure_metadata
Christoph Hellwig [Wed, 16 Feb 2022 14:07:15 +0000 (15:07 +0100)]
nvme: don't return an error from nvme_configure_metadata

When a fabrics controller claims to support an invalidate metadata
configuration we already warn and disable metadata support.  No need to
also return an error during revalidation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Tested-by: Kanchan Joshi <joshi.k@samsung.com>
2 years agoMerge branch 'locked-bridge-ports'
David S. Miller [Wed, 23 Feb 2022 12:52:35 +0000 (12:52 +0000)]
Merge branch 'locked-bridge-ports'

Hans Schultz says:

====================
Add support for locked bridge ports (for 802.1X)

This series starts by adding support for SA filtering to the bridge,
which is then allowed to be offloaded to switchdev devices. Furthermore
an offloading implementation is supplied for the mv88e6xxx driver.

Public Local Area Networks are often deployed such that there is a
risk of unauthorized or unattended clients getting access to the LAN.
To prevent such access we introduce SA filtering, such that ports
designated as secure ports are set in locked mode, so that only
authorized source MAC addresses are given access by adding them to
the bridges forwarding database. Incoming packets with source MAC
addresses that are not in the forwarding database of the bridge are
discarded. It is then the task of user space daemons to populate the
bridge's forwarding database with static entries of authorized entities.

The most common approach is to use the IEEE 802.1X protocol to take
care of the authorization of allowed users to gain access by opening
for the source address of the authorized host.

With the current use of the bridge parameter in hostapd, there is
a limitation in using this for IEEE 802.1X port authentication. It
depends on hostapd attaching the port on which it has a successful
authentication to the bridge, but that only allows for a single
authentication per port. This patch set allows for the use of
IEEE 802.1X port authentication in a more general network context with
multiple 802.1X aware hosts behind a single port as depicted, which is
a commonly used commercial use-case, as it is only the number of
available entries in the forwarding database that limits the number of
authenticated clients.

      +--------------------------------+
      |                                |
      |      Bridge/Authenticator      |
      |                                |
      +-------------+------------------+
       802.1X port  |
                    |
                    |
             +------+-------+
             |              |
             |  Hub/Switch  |
             |              |
             +-+----------+-+
               |          |
            +--+--+    +--+--+
            |     |    |     |
    Hosts   |  a  |    |  b  |   . . .
            |     |    |     |
            +-----+    +-----+

The 802.1X standard involves three different components, a Supplicant
(Host), an Authenticator (Network Access Point) and an Authentication
Server which is typically a Radius server. This patch set thus enables
the bridge module together with an authenticator application to serve
as an Authenticator on designated ports.

For the bridge to become an IEEE 802.1X Authenticator, a solution using
hostapd with the bridge driver can be found at
https://github.com/westermo/hostapd/tree/bridge_driver .

The relevant components work transparently in relation to if it is the
bridge module or the offloaded switchcore case that is in use.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agoselftests: forwarding: tests of locked port feature
Hans Schultz [Wed, 23 Feb 2022 10:16:50 +0000 (11:16 +0100)]
selftests: forwarding: tests of locked port feature

These tests check that the basic locked port feature works, so that
no 'host' can communicate (ping) through a locked port unless the
MAC address of the 'host' interface is in the forwarding database of
the bridge.

Signed-off-by: Hans Schultz <schultz.hans+netdev@gmail.com>
Acked-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: dsa: mv88e6xxx: Add support for bridge port locked mode
Hans Schultz [Wed, 23 Feb 2022 10:16:49 +0000 (11:16 +0100)]
net: dsa: mv88e6xxx: Add support for bridge port locked mode

Supporting bridge ports in locked mode using the drop on lock
feature in Marvell mv88e6xxx switchcores is described in the
'88E6096/88E6097/88E6097F Datasheet', sections 4.4.6, 4.4.7 and
5.1.2.1 (Drop on Lock).

This feature is implemented here facilitated by the locked port flag.

Signed-off-by: Hans Schultz <schultz.hans+netdev@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: dsa: Include BR_PORT_LOCKED in the list of synced brport flags
Hans Schultz [Wed, 23 Feb 2022 10:16:48 +0000 (11:16 +0100)]
net: dsa: Include BR_PORT_LOCKED in the list of synced brport flags

Ensures that the DSA switch driver gets notified of changes to the
BR_PORT_LOCKED flag as well, for the case when a DSA port joins or
leaves a LAG that is a bridge port.

Signed-off-by: Hans Schultz <schultz.hans+netdev@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 years agonet: bridge: Add support for offloading of locked port flag
Hans Schultz [Wed, 23 Feb 2022 10:16:47 +0000 (11:16 +0100)]
net: bridge: Add support for offloading of locked port flag

Various switchcores support setting ports in locked mode, so that
clients behind locked ports cannot send traffic through the port
unless a fdb entry is added with the clients MAC address.

Signed-off-by: Hans Schultz <schultz.hans+netdev@gmail.com>
Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>