Commit graph

3303 commits

Author SHA1 Message Date
Dan Carpenter
fb653827c7 bnx2x: fix an error code in bnx2x_nic_load()
Set the error code if bnx2x_alloc_fw_stats_mem() fails.  The current
code returns success.

Fixes: ad5afc8936 ("bnx2x: Separate VF and PF logic")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-05 13:32:10 +01:00
Somnath Kotur
758684e49f bnxt_en: Fix static checker warning in bnxt_fw_reset_task()
Now that we return when bnxt_open() fails in bnxt_fw_reset_task(),
there is no need to check for 'rc' value again before invoking
bnxt_reenable_sriov().

Fixes: 3958b1da72 ("bnxt_en: fix error path of FW reset")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-26 22:40:26 +01:00
Michael Chan
89bc7f456c bnxt_en: Add missing periodic PHC overflow check
We use the timecounter APIs for the 48-bit PHC and packet timestamps.
We must periodically update the timecounter at roughly half the
overflow interval.  The overflow interval is about 78 hours, so
update it every 19 hours (1/4 interval) for some extra margins.

Fixes: 390862f45c ("bnxt_en: Get the full 48-bit hardware timestamp periodically")
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-24 19:47:58 +01:00
Michael Chan
de5bf19414 bnxt_en: Fix PTP capability discovery
The current PTP initialization logic does not account for firmware
reset that may cause PTP capability to change.  The valid pointer
bp->ptp_cfg is used to indicate that the device is capable of PTP
and that it has been initialized.  So we must clean up bp->ptp_cfg
and free it if the firmware after reset does not support PTP.

Fixes: 93cb62d98e ("bnxt_en: Enable hardware PTP support")
Cc: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-19 08:25:44 -07:00
Michael Chan
d7859afb68 bnxt_en: Move bnxt_ptp_init() to bnxt_open()
The device needs to be in ifup state for PTP to function, so move
bnxt_ptp_init() to bnxt_open().  This means that the PHC will be
registered during bnxt_open().

This also makes firmware reset work correctly.  PTP configurations
may change after firmware upgrade or downgrade.  bnxt_open() will
be called after firmware reset, so it will work properly.

bnxt_ptp_start() is now incorporated into bnxt_ptp_init().  We now
also need to call bnxt_ptp_clear() in bnxt_close().

Fixes: 93cb62d98e ("bnxt_en: Enable hardware PTP support")
Cc: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-19 08:25:44 -07:00
Somnath Kotur
11a39259ff bnxt_en: Check abort error state in bnxt_half_open_nic()
bnxt_half_open_nic() is called during during ethtool self test and is
protected by rtnl_lock.  Firmware reset can be happening at the same
time.  Only critical portions of the entire firmware reset sequence
are protected by the rtnl_lock.  It is possible that bnxt_half_open_nic()
can be called when the firmware reset sequence is aborting.  In that
case, bnxt_half_open_nic() needs to check if the ABORT_ERR flag is set
and abort if it is.  The ethtool self test will fail but the NIC will be
brought to a consistent IF_DOWN state.

Without this patch, if bnxt_half_open_nic() were to continue in this
error state, it may crash like this:

  bnxt_en 0000:82:00.1 enp130s0f1np1: FW reset in progress during close, FW reset will be aborted
  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
  ...
  Process ethtool (pid: 333327, stack limit = 0x0000000046476577)
  Call trace:
  bnxt_alloc_mem+0x444/0xef0 [bnxt_en]
  bnxt_half_open_nic+0x24/0xb8 [bnxt_en]
  bnxt_self_test+0x2dc/0x390 [bnxt_en]
  ethtool_self_test+0xe0/0x1f8
  dev_ethtool+0x1744/0x22d0
  dev_ioctl+0x190/0x3e0
  sock_ioctl+0x238/0x480
  do_vfs_ioctl+0xc4/0x758
  ksys_ioctl+0x84/0xb8
  __arm64_sys_ioctl+0x28/0x38
  el0_svc_handler+0xb0/0x180
  el0_svc+0x8/0xc

Fixes: a1301f08c5 ("bnxt_en: Check abort error state in bnxt_open_nic().")
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-19 08:25:44 -07:00
Michael Chan
96bdd4b9ea bnxt_en: Validate vlan protocol ID on RX packets
Only pass supported VLAN protocol IDs for stripped VLAN tags to the
stack.  The stack will hit WARN() if the protocol ID is unsupported.

Existing firmware sets up the chip to strip 0x8100, 0x88a8, 0x9100.
Only the 1st two protocols are supported by the kernel.

Fixes: a196e96bb6 ("bnxt_en: clean up VLAN feature bit handling")
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-19 08:25:44 -07:00
Somnath Kotur
3958b1da72 bnxt_en: fix error path of FW reset
When bnxt_open() fails in the firmware reset path, the driver needs to
gracefully abort, but it is executing code that should be invoked only
in the success path.  Define a function to abort FW reset and
consolidate all error paths to call this new function.

Fixes: dab62e7c2d ("bnxt_en: Implement faster recovery for firmware fatal error.")
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-19 08:25:44 -07:00
Michael Chan
6cd657cb3e bnxt_en: Add missing check for BNXT_STATE_ABORT_ERR in bnxt_fw_rset_task()
In the BNXT_FW_RESET_STATE_POLL_VF state in bnxt_fw_reset_task() after all
VFs have unregistered, we need to check for BNXT_STATE_ABORT_ERR after
we acquire the rtnl_lock.  If the flag is set, we need to abort.

Fixes: 230d1f0de7 ("bnxt_en: Handle firmware reset.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-19 08:25:44 -07:00
Michael Chan
2c9f046bc3 bnxt_en: Refresh RoCE capabilities in bnxt_ulp_probe()
The capabilities can change after firmware upgrade/downgrade, so we
should get the up-to-date RoCE capabilities everytime bnxt_ulp_probe()
is called.

Fixes: 2151fe0830 ("bnxt_en: Handle RESET_NOTIFY async event from firmware.")
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-19 08:25:43 -07:00
Edwin Peer
c08c596534 bnxt_en: reject ETS settings that will starve a TC
ETS proportions are presented to HWRM_QUEUE_COS2BW_CFG as minimum
bandwidth constraints. Thus, zero is a legal value for a given TC.
However, if all the other TCs sum up to 100%, then at least one
hardware queue will starve, resulting in guaranteed TX timeouts.
Reject such nonsensical configurations.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-19 08:25:43 -07:00
Kalesh AP
c81cfb6256 bnxt_en: don't disable an already disabled PCI device
If device is already disabled in reset path and PCI io error is
detected before the device could be enabled, driver could
call pci_disable_device() for already disabled device. Fix this
problem by calling pci_disable_device() only if the device is already
enabled.

Fixes: 6316ea6db9 ("bnxt_en: Enable AER support.")
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-19 08:25:43 -07:00
Florian Fainelli
2b452550a2 net: bcmgenet: Ensure all TX/RX queues DMAs are disabled
Make sure that we disable each of the TX and RX queues in the TDMA and
RDMA control registers. This is a correctness change to be symmetrical
with the code that enables the TX and RX queues.

Tested-by: Maxime Ripard <maxime@cerno.tech>
Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-08 19:35:59 -07:00
Doug Berger
5a3c680aa2 net: bcmgenet: ensure EXT_ENERGY_DET_MASK is clear
Setting the EXT_ENERGY_DET_MASK bit allows the port energy detection
logic of the internal PHY to prevent the system from sleeping. Some
internal PHYs will report that energy is detected when the network
interface is closed which can prevent the system from going to sleep
if WoL is enabled when the interface is brought down.

Since the driver does not support waking the system on this logic,
this commit clears the bit whenever the internal PHY is powered up
and the other logic for manipulating the bit is removed since it
serves no useful function.

Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-01 11:45:46 -07:00
Linus Torvalds
dbe69e4337 Networking changes for 5.14.
Core:
 
  - BPF:
    - add syscall program type and libbpf support for generating
      instructions and bindings for in-kernel BPF loaders (BPF loaders
      for BPF), this is a stepping stone for signed BPF programs
    - infrastructure to migrate TCP child sockets from one listener
      to another in the same reuseport group/map to improve flexibility
      of service hand-off/restart
    - add broadcast support to XDP redirect
 
  - allow bypass of the lockless qdisc to improving performance
    (for pktgen: +23% with one thread, +44% with 2 threads)
 
  - add a simpler version of "DO_ONCE()" which does not require
    jump labels, intended for slow-path usage
 
  - virtio/vsock: introduce SOCK_SEQPACKET support
 
  - add getsocketopt to retrieve netns cookie
 
  - ip: treat lowest address of a IPv4 subnet as ordinary unicast address
        allowing reclaiming of precious IPv4 addresses
 
  - ipv6: use prandom_u32() for ID generation
 
  - ip: add support for more flexible field selection for hashing
        across multi-path routes (w/ offload to mlxsw)
 
  - icmp: add support for extended RFC 8335 PROBE (ping)
 
  - seg6: add support for SRv6 End.DT46 behavior
 
  - mptcp:
     - DSS checksum support (RFC 8684) to detect middlebox meddling
     - support Connection-time 'C' flag
     - time stamping support
 
  - sctp: packetization Layer Path MTU Discovery (RFC 8899)
 
  - xfrm: speed up state addition with seq set
 
  - WiFi:
     - hidden AP discovery on 6 GHz and other HE 6 GHz improvements
     - aggregation handling improvements for some drivers
     - minstrel improvements for no-ack frames
     - deferred rate control for TXQs to improve reaction times
     - switch from round robin to virtual time-based airtime scheduler
 
  - add trace points:
     - tcp checksum errors
     - openvswitch - action execution, upcalls
     - socket errors via sk_error_report
 
 Device APIs:
 
  - devlink: add rate API for hierarchical control of max egress rate
             of virtual devices (VFs, SFs etc.)
 
  - don't require RCU read lock to be held around BPF hooks
    in NAPI context
 
  - page_pool: generic buffer recycling
 
 New hardware/drivers:
 
  - mobile:
     - iosm: PCIe Driver for Intel M.2 Modem
     - support for Qualcomm MSM8998 (ipa)
 
  - WiFi: Qualcomm QCN9074 and WCN6855 PCI devices
 
  - sparx5: Microchip SparX-5 family of Enterprise Ethernet switches
 
  - Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)
 
  - NXP SJA1110 Automotive Ethernet 10-port switch
 
  - Qualcomm QCA8327 switch support (qca8k)
 
  - Mikrotik 10/25G NIC (atl1c)
 
 Driver changes:
 
  - ACPI support for some MDIO, MAC and PHY devices from Marvell and NXP
    (our first foray into MAC/PHY description via ACPI)
 
  - HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx
 
  - Mellanox/Nvidia NIC (mlx5)
    - NIC VF offload of L2 bridging
    - support IRQ distribution to Sub-functions
 
  - Marvell (prestera):
     - add flower and match all
     - devlink trap
     - link aggregation
 
  - Netronome (nfp): connection tracking offload
 
  - Intel 1GE (igc): add AF_XDP support
 
  - Marvell DPU (octeontx2): ingress ratelimit offload
 
  - Google vNIC (gve): new ring/descriptor format support
 
  - Qualcomm mobile (rmnet & ipa): inline checksum offload support
 
  - MediaTek WiFi (mt76)
     - mt7915 MSI support
     - mt7915 Tx status reporting
     - mt7915 thermal sensors support
     - mt7921 decapsulation offload
     - mt7921 enable runtime pm and deep sleep
 
  - Realtek WiFi (rtw88)
     - beacon filter support
     - Tx antenna path diversity support
     - firmware crash information via devcoredump
 
  - Qualcomm 60GHz WiFi (wcn36xx)
     - Wake-on-WLAN support with magic packets and GTK rekeying
 
  - Micrel PHY (ksz886x/ksz8081): add cable test support
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - BPF:
      - add syscall program type and libbpf support for generating
        instructions and bindings for in-kernel BPF loaders (BPF loaders
        for BPF), this is a stepping stone for signed BPF programs
      - infrastructure to migrate TCP child sockets from one listener to
        another in the same reuseport group/map to improve flexibility
        of service hand-off/restart
      - add broadcast support to XDP redirect

   - allow bypass of the lockless qdisc to improving performance (for
     pktgen: +23% with one thread, +44% with 2 threads)

   - add a simpler version of "DO_ONCE()" which does not require jump
     labels, intended for slow-path usage

   - virtio/vsock: introduce SOCK_SEQPACKET support

   - add getsocketopt to retrieve netns cookie

   - ip: treat lowest address of a IPv4 subnet as ordinary unicast
     address allowing reclaiming of precious IPv4 addresses

   - ipv6: use prandom_u32() for ID generation

   - ip: add support for more flexible field selection for hashing
     across multi-path routes (w/ offload to mlxsw)

   - icmp: add support for extended RFC 8335 PROBE (ping)

   - seg6: add support for SRv6 End.DT46 behavior

   - mptcp:
      - DSS checksum support (RFC 8684) to detect middlebox meddling
      - support Connection-time 'C' flag
      - time stamping support

   - sctp: packetization Layer Path MTU Discovery (RFC 8899)

   - xfrm: speed up state addition with seq set

   - WiFi:
      - hidden AP discovery on 6 GHz and other HE 6 GHz improvements
      - aggregation handling improvements for some drivers
      - minstrel improvements for no-ack frames
      - deferred rate control for TXQs to improve reaction times
      - switch from round robin to virtual time-based airtime scheduler

   - add trace points:
      - tcp checksum errors
      - openvswitch - action execution, upcalls
      - socket errors via sk_error_report

  Device APIs:

   - devlink: add rate API for hierarchical control of max egress rate
     of virtual devices (VFs, SFs etc.)

   - don't require RCU read lock to be held around BPF hooks in NAPI
     context

   - page_pool: generic buffer recycling

  New hardware/drivers:

   - mobile:
      - iosm: PCIe Driver for Intel M.2 Modem
      - support for Qualcomm MSM8998 (ipa)

   - WiFi: Qualcomm QCN9074 and WCN6855 PCI devices

   - sparx5: Microchip SparX-5 family of Enterprise Ethernet switches

   - Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)

   - NXP SJA1110 Automotive Ethernet 10-port switch

   - Qualcomm QCA8327 switch support (qca8k)

   - Mikrotik 10/25G NIC (atl1c)

  Driver changes:

   - ACPI support for some MDIO, MAC and PHY devices from Marvell and
     NXP (our first foray into MAC/PHY description via ACPI)

   - HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx

   - Mellanox/Nvidia NIC (mlx5)
      - NIC VF offload of L2 bridging
      - support IRQ distribution to Sub-functions

   - Marvell (prestera):
      - add flower and match all
      - devlink trap
      - link aggregation

   - Netronome (nfp): connection tracking offload

   - Intel 1GE (igc): add AF_XDP support

   - Marvell DPU (octeontx2): ingress ratelimit offload

   - Google vNIC (gve): new ring/descriptor format support

   - Qualcomm mobile (rmnet & ipa): inline checksum offload support

   - MediaTek WiFi (mt76)
      - mt7915 MSI support
      - mt7915 Tx status reporting
      - mt7915 thermal sensors support
      - mt7921 decapsulation offload
      - mt7921 enable runtime pm and deep sleep

   - Realtek WiFi (rtw88)
      - beacon filter support
      - Tx antenna path diversity support
      - firmware crash information via devcoredump

   - Qualcomm WiFi (wcn36xx)
      - Wake-on-WLAN support with magic packets and GTK rekeying

   - Micrel PHY (ksz886x/ksz8081): add cable test support"

* tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2168 commits)
  tcp: change ICSK_CA_PRIV_SIZE definition
  tcp_yeah: check struct yeah size at compile time
  gve: DQO: Fix off by one in gve_rx_dqo()
  stmmac: intel: set PCI_D3hot in suspend
  stmmac: intel: Enable PHY WOL option in EHL
  net: stmmac: option to enable PHY WOL with PMT enabled
  net: say "local" instead of "static" addresses in ndo_dflt_fdb_{add,del}
  net: use netdev_info in ndo_dflt_fdb_{add,del}
  ptp: Set lookup cookie when creating a PTP PPS source.
  net: sock: add trace for socket errors
  net: sock: introduce sk_error_report
  net: dsa: replay the local bridge FDB entries pointing to the bridge dev too
  net: dsa: ensure during dsa_fdb_offload_notify that dev_hold and dev_put are on the same dev
  net: dsa: include fdb entries pointing to bridge in the host fdb list
  net: dsa: include bridge addresses which are local in the host fdb list
  net: dsa: sync static FDB entries on foreign interfaces to hardware
  net: dsa: install the host MDB and FDB entries in the master's RX filter
  net: dsa: reference count the FDB addresses at the cross-chip notifier level
  net: dsa: introduce a separate cross-chip notifier type for host FDBs
  net: dsa: reference count the MDB entries at the cross-chip notifier level
  ...
2021-06-30 15:51:09 -07:00
Jakub Kicinski
b6df00789e Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Trivial conflict in net/netfilter/nf_tables_api.c.

Duplicate fix in tools/testing/selftests/net/devlink_port_split.py
- take the net-next version.

skmsg, and L4 bpf - keep the bpf code but remove the flags
and err params.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-06-29 15:45:27 -07:00
Linus Torvalds
8ec035ac4a fallthrough fixes for Clang for 5.14-rc1
Hi Linus,
 
 Please, pull the following patches that fix many fall-through warnings
 when building with Clang 12.0.0 and this[1] change reverted. Notice
 that in order to enable -Wimplicit-fallthrough for Clang, such change[1]
 is meant to be reverted at some point. So, these patches help to move
 in that direction.
 
 Thanks!
 
 [1] commit e2079e93f5 ("kbuild: Do not enable -Wimplicit-fallthrough for clang for now")
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Merge tag 'fallthrough-fixes-clang-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull fallthrough fixes from Gustavo Silva:
 "Fix many fall-through warnings when building with Clang 12.0.0 and
  '-Wimplicit-fallthrough' so that we at some point will be able to
  enable that warning by default"

* tag 'fallthrough-fixes-clang-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: (26 commits)
  rxrpc: Fix fall-through warnings for Clang
  drm/nouveau/clk: Fix fall-through warnings for Clang
  drm/nouveau/therm: Fix fall-through warnings for Clang
  drm/nouveau: Fix fall-through warnings for Clang
  xfs: Fix fall-through warnings for Clang
  xfrm: Fix fall-through warnings for Clang
  tipc: Fix fall-through warnings for Clang
  sctp: Fix fall-through warnings for Clang
  rds: Fix fall-through warnings for Clang
  net/packet: Fix fall-through warnings for Clang
  net: netrom: Fix fall-through warnings for Clang
  ide: Fix fall-through warnings for Clang
  hwmon: (max6621) Fix fall-through warnings for Clang
  hwmon: (corsair-cpro) Fix fall-through warnings for Clang
  firewire: core: Fix fall-through warnings for Clang
  braille_console: Fix fall-through warnings for Clang
  ipv4: Fix fall-through warnings for Clang
  qlcnic: Fix fall-through warnings for Clang
  bnxt_en: Fix fall-through warnings for Clang
  netxen_nic: Fix fall-through warnings for Clang
  ...
2021-06-28 20:03:38 -07:00
David S. Miller
e1289cfb63 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2021-06-28

The following pull-request contains BPF updates for your *net-next* tree.

We've added 37 non-merge commits during the last 12 day(s) which contain
a total of 56 files changed, 394 insertions(+), 380 deletions(-).

The main changes are:

1) XDP driver RCU cleanups, from Toke Høiland-Jørgensen and Paul E. McKenney.

2) Fix bpf_skb_change_proto() IPv4/v6 GSO handling, from Maciej Żenczykowski.

3) Fix false positive kmemleak report for BPF ringbuf alloc, from Rustam Kovhaev.

4) Fix x86 JIT's extable offset calculation for PROBE_LDX NULL, from Ravi Bangoria.

5) Enable libbpf fallback probing with tracing under RHEL7, from Jonathan Edwards.

6) Clean up x86 JIT to remove unused cnt tracking from EMIT macro, from Jiri Olsa.

7) Netlink cleanups for libbpf to please Coverity, from Kumar Kartikeya Dwivedi.

8) Allow to retrieve ancestor cgroup id in tracing programs, from Namhyung Kim.

9) Fix lirc BPF program query to use user-provided prog_cnt, from Sean Young.

10) Add initial libbpf doc including generated kdoc for its API, from Grant Seltzer.

11) Make xdp_rxq_info_unreg_mem_model() more robust, from Jakub Kicinski.

12) Fix up bpfilter startup log-level to info level, from Gary Lin.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-28 15:28:03 -07:00
Michael Chan
93cb62d98e bnxt_en: Enable hardware PTP support
Call bnxt_ptp_init() to initialize and register with the clock driver
to enable PTP support.  Call bnxt_ptp_free() to unregister and clean
up during shutdown.

Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-28 13:41:06 -07:00
Pavan Chebbi
83bb623c96 bnxt_en: Transmit and retrieve packet timestamps
Setup the TXBD to enable TX timestamp if requested.  At TX packet DMA
completion, if we requested TX timestamp on that packet, we defer to
.do_aux_work() to obtain the TX timestamp from the firmware before we
free the TX SKB.

v2: Use .do_aux_work() to get the TX timestamp from firmware.

Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-28 13:41:06 -07:00
Pavan Chebbi
7f5515d19c bnxt_en: Get the RX packet timestamp
If the RX packet is timestamped by the hardware, the RX completion
record will contain the lower 32-bit of the timestamp.  This needs
to be combined with the upper 16-bit of the periodic timestamp that
we get from the timer.  The previous snapshot in ptp->old_timer is
used to make sure that the snapshot is not ahead of the RX timestamp
and we adjust for wrap-around if needed.

v2: Make ptp->old_time read access safe on 32-bit CPUs.

Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-28 13:41:06 -07:00
Pavan Chebbi
390862f45c bnxt_en: Get the full 48-bit hardware timestamp periodically
From the bnxt_timer(), read the 48-bit hardware running clock
periodically and store it in ptp->current_time.  The previous snapshot
of the clock will be stored in ptp->old_time.  The old_time snapshot
will be used in the next patches to compute the RX packet timestamps.

v2: Use .do_aux_work() to read the timer periodically.

Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-28 13:41:06 -07:00
Michael Chan
118612d519 bnxt_en: Add PTP clock APIs, ioctls, and ethtool methods
Add the clock APIs to set/get/adjust the hw clock, and the related
ioctls and ethtool methods.

v2: Propagate error code from ptp_clock_register().
    Add spinlock to serialize access to the timecounter.  The
    timecounter is accessed in process context and the RX datapath.
    Read the PHC using direct registers.

Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-28 13:41:05 -07:00
Michael Chan
ae5c42f0b9 bnxt_en: Get PTP hardware capability from firmware
Store PTP hardware info in a structure if hardware and firmware support PTP.

Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-28 13:41:05 -07:00
Michael Chan
78eeadb8fe bnxt_en: Update firmware interface to 1.10.2.47
Adding the PTP related firmware interface is the main change.

There is also a name change for admin_mtu, requiring code fixup.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-28 13:41:05 -07:00
Jian-Hong Pan
19938bafa7 net: bcmgenet: Add mdio-bcm-unimac soft dependency
The Broadcom UniMAC MDIO bus from mdio-bcm-unimac module comes too late.
So, GENET cannot find the ethernet PHY on UniMAC MDIO bus. This leads
GENET fail to attach the PHY as following log:

bcmgenet fd580000.ethernet: GENET 5.0 EPHY: 0x0000
...
could not attach to PHY
bcmgenet fd580000.ethernet eth0: failed to connect to PHY
uart-pl011 fe201000.serial: no DMA platform data
libphy: bcmgenet MII bus: probed
...
unimac-mdio unimac-mdio.-19: Broadcom UniMAC MDIO bus

It is not just coming too late, there is also no way for the module
loader to figure out the dependency between GENET and its MDIO bus
driver unless we provide this MODULE_SOFTDEP hint.

This patch adds the soft dependency to load mdio-bcm-unimac module
before genet module to fix this issue.

Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=213485
Fixes: 9a4e796970 ("net: bcmgenet: utilize generic Broadcom UniMAC MDIO controller driver")
Signed-off-by: Jian-Hong Pan <jhp@endlessos.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-24 15:51:26 -07:00
Toke Høiland-Jørgensen
158c1399fc bnxt: Remove rcu_read_lock() around XDP program invocation
The bnxt driver has rcu_read_lock()/rcu_read_unlock() pairs around XDP
program invocations. However, the actual lifetime of the objects referred
by the XDP program invocation is longer, all the way through to the call to
xdp_do_flush(), making the scope of the rcu_read_lock() too small. This
turns out to be harmless because it all happens in a single NAPI poll
cycle (and thus under local_bh_disable()), but it makes the rcu_read_lock()
misleading.

Rather than extend the scope of the rcu_read_lock(), just get rid of it
entirely. With the addition of RCU annotations to the XDP_REDIRECT map
types that take bh execution into account, lockdep even understands this to
be safe, so there's really no reason to keep it around.

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/bpf/20210624160609.292325-9-toke@redhat.com
2021-06-24 19:43:49 +02:00
Jian-Hong Pan
b2ac9800cf net: bcmgenet: Fix attaching to PYH failed on RPi 4B
The Broadcom UniMAC MDIO bus from mdio-bcm-unimac module comes too late.
So, GENET cannot find the ethernet PHY on UniMAC MDIO bus. This leads
GENET fail to attach the PHY as following log:

bcmgenet fd580000.ethernet: GENET 5.0 EPHY: 0x0000
...
could not attach to PHY
bcmgenet fd580000.ethernet eth0: failed to connect to PHY
uart-pl011 fe201000.serial: no DMA platform data
libphy: bcmgenet MII bus: probed
...
unimac-mdio unimac-mdio.-19: Broadcom UniMAC MDIO bus

This patch adds the soft dependency to load mdio-bcm-unimac module
before genet module to avoid the issue.

Fixes: 9a4e796970 ("net: bcmgenet: utilize generic Broadcom UniMAC MDIO controller driver")
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=213485
Signed-off-by: Jian-Hong Pan <jhp@endlessos.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-23 13:46:57 -07:00
Rafał Miłecki
ddeacc4f64 net: broadcom: bcm4908_enet: reset DMA rings sw indexes properly
Resetting software indexes in bcm4908_dma_alloc_buf_descs() is not
enough as it's called during device probe only. Driver resets DMA on
every .ndo_open callback and it's required to reset indexes then.

This fixes inconsistent rings state and stalled traffic after interface
down & up sequence.

Fixes: 4feffeadbc ("net: broadcom: bcm4908enet: add BCM4908 controller driver")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-22 10:34:13 -07:00
Jakub Kicinski
adc2e56ebe Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Trivial conflicts in net/can/isotp.c and
tools/testing/selftests/net/mptcp/mptcp_connect.sh

scaled_ppm_to_ppb() was moved from drivers/ptp/ptp_clock.c
to include/linux/ptp_clock_kernel.h in -next so re-apply
the fix there.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-06-18 19:47:02 -07:00
Somnath Kotur
03400aaa69 bnxt_en: Call bnxt_ethtool_free() in bnxt_init_one() error path
bnxt_ethtool_init() may have allocated some memory and we need to
call bnxt_ethtool_free() to properly unwind if bnxt_init_one()
fails.

Fixes: 7c38091814 ("bnxt_en: Refactor bnxt_init_one() and turn on TPA support on 57500 chips.")
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-18 12:00:27 -07:00
Rukhsana Ansari
c12e1643d2 bnxt_en: Fix TQM fastpath ring backing store computation
TQM fastpath ring needs to be sized to store both the requester
and responder side of RoCE QPs in TQM for supporting bi-directional
tests.  Fix bnxt_alloc_ctx_mem() to multiply the RoCE QPs by a factor of
2 when computing the number of entries for TQM fastpath ring.  This
fixes an RX pipeline stall issue when running bi-directional max
RoCE QP tests.

Fixes: c7dd7ab4b2 ("bnxt_en: Improve TQM ring context memory sizing formulas.")
Signed-off-by: Rukhsana Ansari <rukhsana.ansari@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-18 12:00:27 -07:00
Michael Chan
0afd6a4e80 bnxt_en: Rediscover PHY capabilities after firmware reset
There is a missing bnxt_probe_phy() call in bnxt_fw_init_one() to
rediscover the PHY capabilities after a firmware reset.  This can cause
some PHY related functionalities to fail after a firmware reset.  For
example, in multi-host, the ability for any host to configure the PHY
settings may be lost after a firmware reset.

Fixes: ec5d31e3c1 ("bnxt_en: Handle firmware reset status during IF_UP.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-18 12:00:27 -07:00
Yang Yingliang
3710e80952 net: ethernet: bgmac: Use devm_platform_ioremap_resource_byname
Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap_resource()
separately.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-07 14:07:22 -07:00
Yang Yingliang
74325bf010 net: bcmgenet: check return value after calling platform_get_resource()
It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-07 14:07:22 -07:00
Shaokun Zhang
44fdd2edb3 bnx2x: Remove the repeated declaration
Function 'bnx2x_vfpf_release' is declared twice, so remove the
repeated declaration.

Cc: Ariel Elior <aelior@marvell.com>
Cc: GR-everest-linux-l2@marvell.com
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Acked-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Link: https://lore.kernel.org/r/1622449756-2627-1-git-send-email-zhangshaokun@hisilicon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-31 22:28:33 -07:00
Jakub Kicinski
5ada57a9a6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
cdc-wdm: s/kill_urbs/poison_urbs/ to fix build

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-27 09:55:10 -07:00
Jiapeng Chong
65161c3555 bnx2x: Fix missing error code in bnx2x_iov_init_one()
Eliminate the follow smatch warning:

drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c:1227
bnx2x_iov_init_one() warn: missing error code 'err'.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-25 15:46:53 -07:00
Hui Tang
90e4403a6d net: broadcom: remove leading spaces before tabs
There are a few leading spaces before tabs and remove it by running the
following commard:

	$ find . -name '*.c' | xargs sed -r -i 's/^[ ]+\t/\t/'
	$ find . -name '*.h' | xargs sed -r -i 's/^[ ]+\t/\t/'

Cc: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Hui Tang <tanghui20@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-19 12:17:30 -07:00
Gustavo A. R. Silva
cc9fd18032 bnxt_en: Fix fall-through warnings for Clang
In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
by explicitly adding a break statement instead of just letting the code
fall through to the next case.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2021-05-17 19:23:09 -05:00
Yang Shen
76d8504917 net: broadcom: bnx2x: Fix wrong function name in comments
Fixes the following W=1 kernel build warning(s):

 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c:13595: warning: expecting prototype for bnx2x_get_num_none_def_sbs(). Prototype was for bnx2x_get_num_non_def_sbs() instead
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c:4165: warning: expecting prototype for atomic_add_ifless(). Prototype was for __atomic_add_ifless() instead
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c:4193: warning: expecting prototype for atomic_dec_ifmoe(). Prototype was for __atomic_dec_ifmoe() instead

Cc: Ariel Elior <aelior@marvell.com>
Cc: Sudarsana Kalluru <skalluru@marvell.com>
Cc: GR-everest-linux-l2@marvell.com
Signed-off-by: Yang Shen <shenyang39@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17 14:12:38 -07:00
Michael Chan
702279d2ce bnxt_en: Fix context memory setup for 64K page size.
There was a typo in the code that checks for 64K BNXT_PAGE_SHIFT in
bnxt_hwrm_set_pg_attr().  Fix it and make the code more understandable
with a new macro BNXT_SET_CTX_PAGE_ATTR().

Fixes: 1b9394e5a2 ("bnxt_en: Configure context memory on new devices.")
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17 13:59:45 -07:00
Andy Gospodarek
ab21494be9 bnxt_en: Include new P5 HV definition in VF check.
Otherwise, some of the recently added HyperV VF IDs would not be
recognized as VF devices and they would not initialize properly.

Fixes: 7fbf359bb2 ("bnxt_en: Add PCI IDs for Hyper-V VF devices.")
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17 13:59:45 -07:00
Zhen Lei
28c66b6da4 net: bnx2: Fix error return code in bnx2_init_board()
Fix to return -EPERM from the error handling case instead of 0, as done
elsewhere in this function.

Fixes: b6016b7673 ("[BNX2]: New Broadcom gigabit network driver.")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17 13:57:09 -07:00
Michael Chan
aa473d6ceb bnxt_en: Fix and improve .ndo_features_check().
Jakub Kicinski pointed out that we need to handle ipv6 extension headers
and to explicitly check for supported tunnel types in
.ndo_features_check().

For ipv6 extension headers, the hardware supports up to 2 ext. headers
and each must be <= 64 bytes.  For tunneled packets, the supported
packets are UDP with supported VXLAN and Geneve ports, GRE, and IPIP.

v3: More improvements based on Alexander Duyck's valuable feedback -
    Remove the jump lable in bnxt_features_check() and restructure it
    so that the TCP/UDP is check is consolidated in bnxt_exthdr_check().

v2: Add missing step to check inner ipv6 header for UDP and GRE tunnels.
    Check TCP/UDP next header after skipping ipv6 ext headers for
    non-tunneled packets and for inner ipv6.
    (Both feedback from Alexander Duyck)

Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Fixes: 1698d600b3 ("bnxt_en: Implement .ndo_features_check().")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-12 13:58:46 -07:00
Linus Torvalds
fc858a5231 Networking fixes for 5.13-rc1, including fixes from bpf, can
and netfilter trees. Self-contained fixes, nothing risky.
 
 Current release - new code bugs:
 
  - dsa: ksz: fix a few bugs found by static-checker in the new driver
 
  - stmmac: fix frame preemption handshake not triggering after
            interface restart
 
 Previous releases - regressions:
 
  - make nla_strcmp handle more then one trailing null character
 
  - fix stack OOB reads while fragmenting IPv4 packets in openvswitch
    and net/sched
 
  - sctp: do asoc update earlier in sctp_sf_do_dupcook_a
 
  - sctp: delay auto_asconf init until binding the first addr
 
  - stmmac: clear receive all(RA) bit when promiscuous mode is off
 
  - can: mcp251x: fix resume from sleep before interface was brought up
 
 Previous releases - always broken:
 
  - bpf: fix leakage of uninitialized bpf stack under speculation
 
  - bpf: fix masking negation logic upon negative dst register
 
  - netfilter: don't assume that skb_header_pointer() will never fail
 
  - only allow init netns to set default tcp cong to a restricted algo
 
  - xsk: fix xp_aligned_validate_desc() when len == chunk_size to
         avoid false positive errors
 
  - ethtool: fix missing NLM_F_MULTI flag when dumping
 
  - can: m_can: m_can_tx_work_queue(): fix tx_skb race condition
 
  - sctp: fix a SCTP_MIB_CURRESTAB leak in sctp_sf_do_dupcook_b
 
  - bridge: fix NULL-deref caused by a races between assigning
            rx_handler_data and setting the IFF_BRIDGE_PORT bit
 
 Latecomer:
 
  - seg6: add counters support for SRv6 Behaviors
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Networking fixes for 5.13-rc1, including fixes from bpf, can and
  netfilter trees. Self-contained fixes, nothing risky.

  Current release - new code bugs:

   - dsa: ksz: fix a few bugs found by static-checker in the new driver

   - stmmac: fix frame preemption handshake not triggering after
     interface restart

  Previous releases - regressions:

   - make nla_strcmp handle more then one trailing null character

   - fix stack OOB reads while fragmenting IPv4 packets in openvswitch
     and net/sched

   - sctp: do asoc update earlier in sctp_sf_do_dupcook_a

   - sctp: delay auto_asconf init until binding the first addr

   - stmmac: clear receive all(RA) bit when promiscuous mode is off

   - can: mcp251x: fix resume from sleep before interface was brought up

  Previous releases - always broken:

   - bpf: fix leakage of uninitialized bpf stack under speculation

   - bpf: fix masking negation logic upon negative dst register

   - netfilter: don't assume that skb_header_pointer() will never fail

   - only allow init netns to set default tcp cong to a restricted algo

   - xsk: fix xp_aligned_validate_desc() when len == chunk_size to avoid
     false positive errors

   - ethtool: fix missing NLM_F_MULTI flag when dumping

   - can: m_can: m_can_tx_work_queue(): fix tx_skb race condition

   - sctp: fix a SCTP_MIB_CURRESTAB leak in sctp_sf_do_dupcook_b

   - bridge: fix NULL-deref caused by a races between assigning
     rx_handler_data and setting the IFF_BRIDGE_PORT bit

  Latecomer:

   - seg6: add counters support for SRv6 Behaviors"

* tag 'net-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (73 commits)
  atm: firestream: Use fallthrough pseudo-keyword
  net: stmmac: Do not enable RX FIFO overflow interrupts
  mptcp: fix splat when closing unaccepted socket
  i40e: Remove LLDP frame filters
  i40e: Fix PHY type identifiers for 2.5G and 5G adapters
  i40e: fix the restart auto-negotiation after FEC modified
  i40e: Fix use-after-free in i40e_client_subtask()
  i40e: fix broken XDP support
  netfilter: nftables: avoid potential overflows on 32bit arches
  netfilter: nftables: avoid overflows in nft_hash_buckets()
  tcp: Specify cmsgbuf is user pointer for receive zerocopy.
  mlxsw: spectrum_mr: Update egress RIF list before route's action
  net: ipa: fix inter-EE IRQ register definitions
  can: m_can: m_can_tx_work_queue(): fix tx_skb race condition
  can: mcp251x: fix resume from sleep before interface was brought up
  can: mcp251xfd: mcp251xfd_probe(): add missing can_rx_offload_del() in error path
  can: mcp251xfd: mcp251xfd_probe(): fix an error pointer dereference in probe
  netfilter: nftables: Fix a memleak from userdata error path in new objects
  netfilter: remove BUG_ON() after skb_header_pointer()
  netfilter: nfnetlink_osf: Fix a missing skb_header_pointer() NULL check
  ...
2021-05-08 08:31:46 -07:00
Linus Torvalds
57151b502c pci-v5.13-changes
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Merge tag 'pci-v5.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
 "Enumeration:
   - Release OF node when pci_scan_device() fails (Dmitry Baryshkov)
   - Add pci_disable_parity() (Bjorn Helgaas)
   - Disable Mellanox Tavor parity reporting (Heiner Kallweit)
   - Disable N2100 r8169 parity reporting (Heiner Kallweit)
   - Fix RCiEP device to RCEC association (Qiuxu Zhuo)
   - Convert sysfs "config", "rom", "reset", "label", "index",
     "acpi_index" to static attributes to help fix races in device
     enumeration (Krzysztof Wilczyński)
   - Convert sysfs "vpd" to static attribute (Heiner Kallweit, Krzysztof
     Wilczyński)
   - Use sysfs_emit() in "show" functions (Krzysztof Wilczyński)
   - Remove unused alloc_pci_root_info() return value (Krzysztof
     Wilczyński)

  PCI device hotplug:
   - Fix acpiphp reference count leak (Feilong Lin)

  Power management:
   - Fix acpi_pci_set_power_state() debug message (Rafael J. Wysocki)
   - Fix runtime PM imbalance (Dinghao Liu)

  Virtualization:
   - Increase delay after FLR to work around Intel DC P4510 NVMe erratum
     (Raphael Norwitz)

  MSI:
   - Convert rcar, tegra, xilinx to MSI domains (Marc Zyngier)
   - For rcar, xilinx, use controller address as MSI doorbell (Marc
     Zyngier)
   - Remove unused hv msi_controller struct (Marc Zyngier)
   - Remove unused PCI core msi_controller support (Marc Zyngier)
   - Remove struct msi_controller altogether (Marc Zyngier)
   - Remove unused default_teardown_msi_irqs() (Marc Zyngier)
   - Let host bridges declare their reliance on MSI domains (Marc
     Zyngier)
   - Make pci_host_common_probe() declare its reliance on MSI domains
     (Marc Zyngier)
   - Advertise mediatek lack of built-in MSI handling (Thomas Gleixner)
   - Document ways of ending up with NO_MSI (Marc Zyngier)
   - Refactor HT advertising of NO_MSI flag (Marc Zyngier)

  VPD:
   - Remove obsolete Broadcom NIC VPD length-limiting quirk (Heiner
     Kallweit)
   - Remove sysfs VPD size checking dead code (Heiner Kallweit)
   - Convert VPF sysfs file to static attribute (Heiner Kallweit)
   - Remove unnecessary pci_set_vpd_size() (Heiner Kallweit)
   - Tone down "missing VPD" message (Heiner Kallweit)

  Endpoint framework:
   - Fix NULL pointer dereference when epc_features not implemented
     (Shradha Todi)
   - Add missing destroy_workqueue() in endpoint test (Yang Yingliang)

  Amazon Annapurna Labs PCIe controller driver:
   - Fix compile testing without CONFIG_PCI_ECAM (Arnd Bergmann)
   - Fix "no symbols" warnings when compile testing with
     CONFIG_TRIM_UNUSED_KSYMS (Arnd Bergmann)

  APM X-Gene PCIe controller driver:
   - Fix cfg resource mapping regression (Dejin Zheng)

  Broadcom iProc PCIe controller driver:
   - Return zero for success of iproc_msi_irq_domain_alloc() (Pali
     Rohár)

  Broadcom STB PCIe controller driver:
   - Add reset_control_rearm() stub for !CONFIG_RESET_CONTROLLER (Jim
     Quinlan)
   - Fix use of BCM7216 reset controller (Jim Quinlan)
   - Use reset/rearm for Broadcom STB pulse reset instead of
     deassert/assert (Jim Quinlan)
   - Fix brcm_pcie_probe() error return for unsupported revision (Wei
     Yongjun)

  Cavium ThunderX PCIe controller driver:
   - Fix compile testing (Arnd Bergmann)
   - Fix "no symbols" warnings when compile testing with
     CONFIG_TRIM_UNUSED_KSYMS (Arnd Bergmann)

  Freescale Layerscape PCIe controller driver:
   - Fix ls_pcie_ep_probe() syntax error (comma for semicolon)
     (Krzysztof Wilczyński)
   - Remove layerscape-gen4 dependencies on OF and ARM64, add dependency
     on ARCH_LAYERSCAPE (Geert Uytterhoeven)

  HiSilicon HIP PCIe controller driver:
   - Remove obsolete HiSilicon PCIe DT description (Dongdong Liu)

  Intel Gateway PCIe controller driver:
   - Remove unused pcie_app_rd() (Jiapeng Chong)

  Intel VMD host bridge driver:
   - Program IRTE with Requester ID of VMD endpoint, not child device
     (Jon Derrick)
   - Disable VMD MSI-X remapping when possible so children can use more
     MSI-X vectors (Jon Derrick)

  MediaTek PCIe controller driver:
   - Configure FC and FTS for functions other than 0 (Ryder Lee)
   - Add YAML schema for MediaTek (Jianjun Wang)
   - Export pci_pio_to_address() for module use (Jianjun Wang)
   - Add MediaTek MT8192 PCIe controller driver (Jianjun Wang)
   - Add MediaTek MT8192 INTx support (Jianjun Wang)
   - Add MediaTek MT8192 MSI support (Jianjun Wang)
   - Add MediaTek MT8192 system power management support (Jianjun Wang)
   - Add missing MODULE_DEVICE_TABLE (Qiheng Lin)

  Microchip PolarFlare PCIe controller driver:
   - Make several symbols static (Wei Yongjun)

  NVIDIA Tegra PCIe controller driver:
   - Add MCFG quirks for Tegra194 ECAM errata (Vidya Sagar)
   - Make several symbols const (Rikard Falkeborn)
   - Fix Kconfig host/endpoint typo (Wesley Sheng)

  SiFive FU740 PCIe controller driver:
   - Add pcie_aux clock to prci driver (Greentime Hu)
   - Use reset-simple in prci driver for PCIe (Greentime Hu)
   - Add SiFive FU740 PCIe host controller driver and DT binding (Paul
     Walmsley, Greentime Hu)

  Synopsys DesignWare PCIe controller driver:
   - Move MSI Receiver init to dw_pcie_host_init() so it is
     re-initialized along with the RC in resume (Jisheng Zhang)
   - Move iATU detection earlier to fix regression (Hou Zhiqiang)

  TI J721E PCIe driver:
   - Add DT binding and TI j721e support for refclk to PCIe connector
     (Kishon Vijay Abraham I)
   - Add host mode and endpoint mode DT bindings for TI AM64 SoC (Kishon
     Vijay Abraham I)

  TI Keystone PCIe controller driver:
   - Use generic config accessors for TI AM65x (K3) to fix regression
     (Kishon Vijay Abraham I)

  Xilinx NWL PCIe controller driver:
   - Add support for coherent PCIe DMA traffic using CCI (Bharat Kumar
     Gogada)
   - Add optional "dma-coherent" DT property (Bharat Kumar Gogada)

  Miscellaneous:
   - Fix kernel-doc warnings (Krzysztof Wilczyński)
   - Remove unused MicroGate SyncLink device IDs (Jiri Slaby)
   - Remove redundant dev_err() for devm_ioremap_resource() failure
     (Chen Hui)
   - Remove redundant initialization (Colin Ian King)
   - Drop redundant dev_err() for platform_get_irq() errors (Krzysztof
     Wilczyński)"

* tag 'pci-v5.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (98 commits)
  riscv: dts: Add PCIe support for the SiFive FU740-C000 SoC
  PCI: fu740: Add SiFive FU740 PCIe host controller driver
  dt-bindings: PCI: Add SiFive FU740 PCIe host controller
  MAINTAINERS: Add maintainers for SiFive FU740 PCIe driver
  clk: sifive: Use reset-simple in prci driver for PCIe driver
  clk: sifive: Add pcie_aux clock in prci driver for PCIe driver
  PCI: brcmstb: Use reset/rearm instead of deassert/assert
  ata: ahci_brcm: Fix use of BCM7216 reset controller
  reset: add missing empty function reset_control_rearm()
  PCI: Allow VPD access for QLogic ISP2722
  PCI/VPD: Add helper pci_get_func0_dev()
  PCI/VPD: Remove pci_vpd_find_tag() SRDT handling
  PCI/VPD: Remove pci_vpd_find_tag() 'offset' argument
  PCI/VPD: Change pci_vpd_init() return type to void
  PCI/VPD: Make missing VPD message less alarming
  PCI/VPD: Remove pci_set_vpd_size()
  x86/PCI: Remove unused alloc_pci_root_info() return value
  MAINTAINERS: Add Jianjun Wang as MediaTek PCI co-maintainer
  PCI: mediatek-gen3: Add system PM support
  PCI: mediatek-gen3: Add MSI support
  ...
2021-05-05 13:24:11 -07:00
Linus Torvalds
f34b2cf178 RDMA merge window pull request
This is significantly bug fixes and general cleanups. The noteworthy new
 features are fairly small:
 
 - XRC support for HNS and improves RQ operations
 
 - Bug fixes and updates for hns, mlx5, bnxt_re, hfi1, i40iw, rxe, siw and
   qib
 
 - Quite a few general cleanups on spelling, error handling, static checker
   detections, etc
 
 - Increase the number of device ports supported beyond 255. High port
   count software switches now exist
 
 - Several bug fixes for rtrs
 
 - mlx5 Device Memory support for host controlled atomics
 
 - Report SRQ tables through to rdma-tool
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "This is significantly bug fixes and general cleanups. The noteworthy
  new features are fairly small:

   - XRC support for HNS and improves RQ operations

   - Bug fixes and updates for hns, mlx5, bnxt_re, hfi1, i40iw, rxe, siw
     and qib

   - Quite a few general cleanups on spelling, error handling, static
     checker detections, etc

   - Increase the number of device ports supported beyond 255. High port
     count software switches now exist

   - Several bug fixes for rtrs

   - mlx5 Device Memory support for host controlled atomics

   - Report SRQ tables through to rdma-tool"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (145 commits)
  IB/qib: Remove redundant assignment to ret
  RDMA/nldev: Add copy-on-fork attribute to get sys command
  RDMA/bnxt_re: Fix a double free in bnxt_qplib_alloc_res
  RDMA/siw: Fix a use after free in siw_alloc_mr
  IB/hfi1: Remove redundant variable rcd
  RDMA/nldev: Add QP numbers to SRQ information
  RDMA/nldev: Return SRQ information
  RDMA/restrack: Add support to get resource tracking for SRQ
  RDMA/nldev: Return context information
  RDMA/core: Add CM to restrack after successful attachment to a device
  RDMA/cma: Skip device which doesn't support CM
  RDMA/rxe: Fix a bug in rxe_fill_ip_info()
  RDMA/mlx5: Expose private query port
  RDMA/mlx4: Remove an unused variable
  RDMA/mlx5: Fix type assignment for ICM DM
  IB/mlx5: Set right RoCE l3 type and roce version while deleting GID
  RDMA/i40iw: Fix error unwinding when i40iw_hmc_sd_one fails
  RDMA/cxgb4: add missing qpid increment
  IB/ipoib: Remove unnecessary struct declaration
  RDMA/bnxt_re: Get rid of custom module reference counting
  ...
2021-05-01 09:15:05 -07:00
Heiner Kallweit
4cf0abbce6 PCI/VPD: Remove pci_vpd_find_tag() 'offset' argument
All callers pass 0 as offset. Therefore remove the parameter and use a
fixed offset 0 in pci_vpd_find_tag().

Link: https://lore.kernel.org/r/f62e6e19-5423-2ead-b2bd-62844b23ef8f@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-04-30 14:38:32 -05:00
Yang Li
8343b1f8b9 bnx2x: Remove redundant assignment to err
Variable 'err' is set to -EIO but this value is never read as it is
overwritten with a new value later on, hence it is a redundant
assignment and can be removed.

Clean up the following clang-analyzer warning:
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c:1195:2: warning: Value
stored to 'err' is never read [clang-analyzer-deadcode.DeadStores]

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-29 15:52:07 -07:00