Commit Graph

23567 Commits

Author SHA1 Message Date
Nicholas Mc Guire
7481a8576a liquidio: make timeout HZ independent and readable
schedule_timeout_* takes a timeout in jiffies but the code currently is
passing in a constant which makes this timeout HZ dependent. So define
a constant with (hopefully) meaningful name and pass it through
msecs_to_jiffies() to fix the HZ dependency.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
commit f21fb3ed36 ("Add support of Cavium Liquidio ethernet adapters")
Acked-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-06 11:06:59 +09:00
Dan Carpenter
0df8adbb88 qed: off by one in qed_parse_mcp_trace_buf()
If format_idx == s_mcp_trace_meta.formats_num then we read one element
beyond the end of the s_mcp_trace_meta.formats[] array.

Fixes: 50bc60cb15 ("qed*: Utilize FW 8.33.11.0")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-05 20:13:26 +09:00
Denis Bolotin
5e7ba042fd qed: Fix reading stale configuration information
Configuration information read at driver load can become stale after it is
updated. Mark information as not valid and re-populate when this happens.

Signed-off-by: Denis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-05 13:27:09 +09:00
David Ahern
33bd5ac54d net/ipv6: Revert attempt to simplify route replace and append
NetworkManager likes to manage linklocal prefix routes and does so with
the NLM_F_APPEND flag, breaking attempts to simplify the IPv6 route
code and by extension enable multipath routes with device only nexthops.

Revert f34436a430 and these followup patches:
6eba08c362 ("ipv6: Only emit append events for appended routes").
ce45bded64 ("mlxsw: spectrum_router: Align with new route replace logic")
53b562df8c ("mlxsw: spectrum_router: Allow appending to dev-only routes")

Update the fib_tests cases to reflect the old behavior.

Fixes: f34436a430 ("net/ipv6: Simplify route replace and appending into multipath route")
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-07-04 15:22:13 +09:00
Heiner Kallweit
2d0ec5440b r8169: fix mac address change
Network core refuses to change mac address because flag
IFF_LIVE_ADDR_CHANGE isn't set. Set this missing flag.

Fixes: 1f7aa2bc26 ("r8169: simplify rtl_set_mac_address")
Reported-by: Corinna Vinschen <vinschen@redhat.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Tested-by: Corinna Vinschen <vinschen@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-03 23:27:58 +09:00
Sudarsana Reddy Kalluru
82a4e71b15 qede: Adverstise software timestamp caps when PHC is not available.
When ptp clock is not available for a PF (e.g., higher PFs in NPAR mode),
get-tsinfo() callback should return the software timestamp capabilities
instead of returning the error.

Fixes: 4c55215c ("qede: Add driver support for PTP")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-02 20:41:30 +09:00
Sudarsana Reddy Kalluru
cc9b27cdf7 qed: Fix use of incorrect size in memcpy call.
Use the correct size value while copying chassis/port id values.

Fixes: 6ad8c632e ("qed: Add support for query/config dcbx.")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-02 20:41:30 +09:00
Sudarsana Reddy Kalluru
538f8d00ba qed: Fix setting of incorrect eswitch mode.
By default, driver sets the eswitch mode incorrectly as VEB (virtual
Ethernet bridging).
Need to set VEB eswitch mode only when sriov is enabled, and it should be
to set NONE by default. The patch incorporates this change.

Fixes: 0fefbfbaa ("qed*: Management firmware - notifications and defaults")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-02 20:41:30 +09:00
Sudarsana Reddy Kalluru
bb7858ba11 qed: Limit msix vectors in kdump kernel to the minimum required count.
Memory size is limited in the kdump kernel environment. Allocation of more
msix-vectors (or queues) consumes few tens of MBs of memory, which might
lead to the kdump kernel failure.
This patch adds changes to limit the number of MSI-X vectors in kdump
kernel to minimum required value (i.e., 2 per engine).

Fixes: fe56b9e6a ("qed: Add module with basic common support")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-02 20:41:30 +09:00
David S. Miller
271b955e52 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:

====================
pull-request: bpf 2018-07-01

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

The main changes are:

1) A bpf_fib_lookup() helper fix to change the API before freeze to
   return an encoding of the FIB lookup result and return the nexthop
   device index in the params struct (instead of device index as return
   code that we had before), from David.

2) Various BPF JIT fixes to address syzkaller fallout, that is, do not
   reject progs when set_memory_*() fails since it could still be RO.
   Also arm32 JIT was not using bpf_jit_binary_lock_ro() API which was
   an issue, and a memory leak in s390 JIT found during review, from
   Daniel.

3) Multiple fixes for sockmap/hash to address most of the syzkaller
   triggered bugs. Usage with IPv6 was crashing, a GPF in bpf_tcp_close(),
   a missing sock_map_release() routine to hook up to callbacks, and a
   fix for an omitted bucket lock in sock_close(), from John.

4) Two bpftool fixes to remove duplicated error message on program load,
   and another one to close the libbpf object after program load. One
   additional fix for nfp driver's BPF offload to avoid stopping offload
   completely if replace of program failed, from Jakub.

5) Couple of BPF selftest fixes that bail out in some of the test
   scripts if the user does not have the right privileges, from Jeffrin.

6) Fixes in test_bpf for s390 when CONFIG_BPF_JIT_ALWAYS_ON is set
   where we need to set the flag that some of the test cases are expected
   to fail, from Kleber.

7) Fix to detangle BPF_LIRC_MODE2 dependency from CONFIG_CGROUP_BPF
   since it has no relation to it and lirc2 users often have configs
   without cgroups enabled and thus would not be able to use it, from Sean.

8) Fix a selftest failure in sockmap by removing a useless setrlimit()
   call that would set a too low limit where at the same time we are
   already including bpf_rlimit.h that does the job, from Yonghong.

9) Fix BPF selftest config with missing missing NET_SCHED, from Anders.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-01 09:27:44 +09:00
Sabrina Dubroca
bc800e8b39 alx: take rtnl before calling __alx_open from resume
The __alx_open function can be called from ndo_open, which is called
under RTNL, or from alx_resume, which isn't. Since commit d768319cd4,
we're calling the netif_set_real_num_{tx,rx}_queues functions, which
need to be called under RTNL.

This is similar to commit 0c2cc02e57 ("igb: Move the calls to set the
Tx and Rx queues into igb_open").

Fixes: d768319cd4 ("alx: enable multiple tx queues")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-30 21:14:47 +09:00
Bert Kenward
cafb39600e sfc: correctly initialise filter rwsem for farch
Fixes: fc7a6c287f ("sfc: use a semaphore to lock farch filters too")
Suggested-by: Joseph Korty <joe.korty@concurrent-rt.com>
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-30 21:13:37 +09:00
Madalin Bucur
595e802e53 dpaa_eth: DPAA SGT needs to be 256B
The DPAA HW requires that at least 256 bytes from the start of the
first scatter-gather table entry are allocated and accessible. The
hardware reads the maximum size the table can have in one access,
thus requiring that the allocation and mapping to be done for the
maximum size of 256B even if there is a smaller number of entries
in the table.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-30 18:51:06 +09:00
Madalin Bucur
b95f6fbc8e fsl/fman: fix parser reporting bad checksum on short frames
The FMan hardware parser needs to be configured to remove the
short frame padding from the checksum calculation, otherwise
short UDP and TCP frames are likely to be marked as having a
bad checksum.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-30 18:51:06 +09:00
Sudarsana Reddy Kalluru
484c016d93 bnx2x: Fix receiving tx-timeout in error or recovery state.
Driver performs the internal reload when it receives tx-timeout event from
the OS. Internal reload might fail in some scenarios e.g., fatal HW issues.
In such cases OS still see the link, which would result in undesirable
functionalities such as re-generation of tx-timeouts.
The patch addresses this issue by indicating the link-down to OS when
tx-timeout is detected, and keeping the link in down state till the
internal reload is successful.

Please consider applying it to 'net' branch.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-30 18:48:02 +09:00
Dan Carpenter
5037c62806 cnic: tidy up a size calculation
Static checkers complain that id_tbl->table points to longs and 4 bytes
is smaller than sizeof(long).  But the since other side is dividing by
32 instead of sizeof(long), that means the current code works fine.

Anyway, it's more conventional to use the BITS_TO_LONGS() macro when
we're allocating a bitmap.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-30 18:46:52 +09:00
Jose Abreu
4205c88eaf net: stmmac: Set DMA buffer size in HW
This is clearly a bug.

We need to set the DMA buffer size in the HW otherwise corruption can
occur when receiving packets.

This is probably not occuring because of small MTU values and because HW
has a default value internally (which currently is bigger than default
buffer size).

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: Vitor Soares <soares@synopsys.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-28 22:24:25 +09:00
David S. Miller
04c6faa175 mlx5-fixes-2018-06-26
Fixes for mlx5 core and netdev driver:
 
 Two fixes from Alex Vesker to address command interface issues
  - Race in command interface polling mode
  - Incorrect raw command length parsing
 
 From Shay Agroskin, Fix wrong size allocation for QoS ETC TC regitster.
 
 From Or Gerlitz and Eli Cohin, Address backward compatability issues for when
 Eswitch capability is not advertised for the PF host driver
     - Fix required capability for manipulating MPFS
     - E-Switch, Disallow vlan/spoofcheck setup if not being esw manager
     - Avoid dealing with vport IB/eth representors if not being e-switch manager
     - E-Switch, Avoid setup attempt if not being e-switch manager
     - Don't attempt to dereference the ppriv struct if not being eswitch manager
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Merge tag 'mlx5-fixes-2018-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-fixes-2018-06-26

Fixes for mlx5 core and netdev driver:

Two fixes from Alex Vesker to address command interface issues
 - Race in command interface polling mode
 - Incorrect raw command length parsing

From Shay Agroskin, Fix wrong size allocation for QoS ETC TC regitster.

From Or Gerlitz and Eli Cohin, Address backward compatability issues for when
Eswitch capability is not advertised for the PF host driver
    - Fix required capability for manipulating MPFS
    - E-Switch, Disallow vlan/spoofcheck setup if not being esw manager
    - Avoid dealing with vport IB/eth representors if not being e-switch manager
    - E-Switch, Avoid setup attempt if not being e-switch manager
    - Don't attempt to dereference the ppriv struct if not being eswitch manager
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-28 16:21:35 +09:00
Jesper Dangaard Brouer
2e68931238 i40e: split XDP_TX tail and XDP_REDIRECT map flushing
The driver was combining the XDP_TX tail flush and XDP_REDIRECT
map flushing (xdp_do_flush_map).  This is suboptimal, these two
flush operations should be kept separate.

It looks like the mistake was copy-pasted from ixgbe.

Fixes: d9314c474d ("i40e: add support for XDP_REDIRECT")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-28 14:27:52 +09:00
Jesper Dangaard Brouer
ad088ec480 ixgbe: split XDP_TX tail and XDP_REDIRECT map flushing
The driver was combining the XDP_TX tail flush and XDP_REDIRECT
map flushing (xdp_do_flush_map).  This is suboptimal, these two
flush operations should be kept separate.

Fixes: 11393cc9b9 ("xdp: Add batching support to redirect map")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-28 14:27:52 +09:00
Alexandre Belloni
fec9d3b1dc net: macb: initialize bp->queues[0].bp for at91rm9200
The macb driver currently crashes on at91rm9200 with the following trace:

Unable to handle kernel NULL pointer dereference at virtual address 00000014
[...]
[<c031da44>] (macb_rx_desc) from [<c031f2bc>] (at91ether_open+0x2e8/0x3f8)
[<c031f2bc>] (at91ether_open) from [<c041e8d8>] (__dev_open+0x120/0x13c)
[<c041e8d8>] (__dev_open) from [<c041ec08>] (__dev_change_flags+0x17c/0x1a8)
[<c041ec08>] (__dev_change_flags) from [<c041ec4c>] (dev_change_flags+0x18/0x4c)
[<c041ec4c>] (dev_change_flags) from [<c07a5f4c>] (ip_auto_config+0x220/0x10b0)
[<c07a5f4c>] (ip_auto_config) from [<c000a4fc>] (do_one_initcall+0x78/0x18c)
[<c000a4fc>] (do_one_initcall) from [<c0783e50>] (kernel_init_freeable+0x184/0x1c4)
[<c0783e50>] (kernel_init_freeable) from [<c0574d70>] (kernel_init+0x8/0xe8)
[<c0574d70>] (kernel_init) from [<c00090e0>] (ret_from_fork+0x14/0x34)

Solve that by initializing bp->queues[0].bp in at91ether_init (as is done
in macb_init).

Fixes: ae1f2a56d2 ("net: macb: Added support for many RX queues")
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-28 13:49:02 +09:00
Wei Yongjun
82be2ab159 hinic: reset irq affinity before freeing irq
Following warning is seen when rmmod hinic. This is because affinity
value is not reset before calling free_irq(). This patch fixes it.

[   55.181232] WARNING: CPU: 38 PID: 19589 at kernel/irq/manage.c:1608
__free_irq+0x2aa/0x2c0

Fixes: 352f58b0d9 ("net-next/hinic: Set Rxq irq to specific cpu for NUMA")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-28 13:34:57 +09:00
Chengguang Xu
2d2595719a nfp: cast sizeof() to int when comparing with error code
sizeof() will return unsigned value so in the error check
negative error code will be always larger than sizeof().

Fixes: a0d8e02c35 ("nfp: add support for reading nffw info")

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-27 15:36:32 +09:00
John Hurley
951a8ee6de nfp: reject binding to shared blocks
TC shared blocks allow multiple qdiscs to be grouped together and filters
shared between them. Currently the chains of filters attached to a block
are only flushed when the block is removed. If a qdisc is removed from a
block but the block still exists, flow del messages are not passed to the
callback registered for that qdisc. For the NFP, this presents the
possibility of rules still existing in hw when they should be removed.

Prevent binding to shared blocks until the kernel can send per qdisc del
messages when block unbinds occur.

tcf_block_shared() was not used outside of the core until now, so also
add an empty implementation for builds with CONFIG_NET_CLS=n.

Fixes: 4861738775 ("net: sched: introduce shared filter blocks infrastructure")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-27 10:46:43 +09:00
Pieter Jansen van Vuuren
a64119415f nfp: flower: fix mpls ether type detection
Previously it was not possible to distinguish between mpls ether types and
other ether types. This leads to incorrect classification of offloaded
filters that match on mpls ether type. For example the following two
filters overlap:

 # tc filter add dev eth0 parent ffff: \
    protocol 0x8847 flower \
    action mirred egress redirect dev eth1

 # tc filter add dev eth0 parent ffff: \
    protocol 0x0800 flower \
    action mirred egress redirect dev eth2

The driver now correctly includes the mac_mpls layer where HW stores mpls
fields, when it detects an mpls ether type. It also sets the MPLS_Q bit to
indicate that the filter should match mpls packets.

Fixes: bb055c198d ("nfp: add mpls match offloading support")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-27 10:46:43 +09:00
Alex Vesker
d412c31dae net/mlx5: Fix command interface race in polling mode
The command interface can work in two modes: Events and Polling.
In the general case, each time we invoke a command, a work is
queued to handle it.

When working in events, the interrupt handler completes the
command execution. On the other hand, when working in polling
mode, the work itself completes it.

Due to a bug in the work handler, a command could have been
completed by the interrupt handler, while the work handler
hasn't finished yet, causing the it to complete once again
if the command interface mode was changed from Events to
polling after the interrupt handler was called.

mlx5_unload_one()
        mlx5_stop_eqs()
                // Destroy the EQ before cmd EQ
                ...cmd_work_handler()
                        write_doorbell()
                        --> EVENT_TYPE_CMD
                                mlx5_cmd_comp_handler() // First free
                                        free_ent(cmd, ent->idx)
                                        complete(&ent->done)

        <-- mlx5_stop_eqs //cmd was complete
                // move to polling before destroying the last cmd EQ
                mlx5_cmd_use_polling()
                        cmd->mode = POLL;

                --> cmd_work_handler (continues)
                        if (cmd->mode == POLL)
                                mlx5_cmd_comp_handler() // Double free

The solution is to store the cmd->mode before writing the doorbell.

Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-06-26 15:26:34 -07:00
Alex Vesker
603b7bcff8 net/mlx5: Fix incorrect raw command length parsing
The NULL character was not set correctly for the string containing
the command length, this caused failures reading the output of the
command due to a random length. The fix is to initialize the output
length string.

Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-06-26 15:26:34 -07:00
Shay Agroskin
d14fcb8d87 net/mlx5: Fix wrong size allocation for QoS ETC TC regitster
The driver allocates wrong size (due to wrong struct name) when issuing
a query/set request to NIC's register.

Fixes: d8880795da ("net/mlx5e: Implement DCBNL IEEE max rate")
Signed-off-by: Shay Agroskin <shayag@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-06-26 15:26:33 -07:00
Eli Cohen
f811980444 net/mlx5: Fix required capability for manipulating MPFS
Manipulating of the MPFS requires eswitch manager capabilities.

Fixes: eeb66cdb68 ('net/mlx5: Separate between E-Switch and MPFS')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-06-26 15:26:32 -07:00
Eli Cohen
a8d70a054a net/mlx5: E-Switch, Disallow vlan/spoofcheck setup if not being esw manager
In smartnic env, if the host (PF) driver is not an e-switch manager, we
are not allowed to apply eswitch ports setups such as vlan (VST),
spoof-checks, min/max rate or state.

Make sure we are eswitch manager when coming to issue these callbacks
and err otherwise.

Also fix the definition of ESW_ALLOWED to rely on eswitch_manager
capability and on the vport_group_manger.

Operations on the VF nic vport context, such as setting a mac or reading
the vport counters are allowed to the PF in this scheme.

The modify nic vport guid code was modified to omit checking the
nic_vport_node_guid_modify eswitch capability.
The reason for doing so is that modifying node guid requires vport group
manager capability, and there's no need to check further capabilities.

1. set_vf_vlan     - disallowed
2. set_vf_spoofchk - disallowed
3. set_vf_mac      - allowed
4. get_vf_config   - allowed
5. set_vf_trust    - disallowed
6. set_vf_rate     - disallowed
7. get_vf_stat     - allowed
8. set_vf_link_state - disallowed

Fixes: f942380c12 ('net/mlx5: E-Switch, Vport ingress/egress ACLs rules for spoofchk')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Tested-by: Or Gerlitz <ogerlitz@mellanox.com>
2018-06-26 15:26:31 -07:00
Or Gerlitz
733d3e5497 net/mlx5e: Avoid dealing with vport representors if not being e-switch manager
In smartnic env, the host (PF) driver might not be an e-switch
manager, hence the switchdev mode representors are running on
the embedded cpu (EC) and not at the host.

As such, we should avoid dealing with vport representors if
not being esw manager.

While here, make sure to disallow eswitch switchdev related
setups through devlink if we are not esw managers.

Fixes: cb67b83292 ('net/mlx5e: Introduce SRIOV VF representors')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-06-26 15:26:30 -07:00
Or Gerlitz
0efc856249 net/mlx5: E-Switch, Avoid setup attempt if not being e-switch manager
In smartnic env, the host (PF) driver might not be an e-switch
manager, hence the FW will err on driver attempts to deal with
setting/unsetting the eswitch and as a result the overall setup
of sriov will fail.

Fix that by avoiding the operation if e-switch management is not
allowed for this driver instance. While here, move to use the
correct name for the esw manager capability name.

Fixes: 81848731ff ('net/mlx5: E-Switch, Add SR-IOV (FDB) support')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Guy Kushnir <guyk@mellanox.com>
Reviewed-by: Eli Cohen <eli@melloanox.com>
Tested-by: Eli Cohen <eli@melloanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-06-26 15:26:29 -07:00
Or Gerlitz
8ffd569aaa net/mlx5e: Don't attempt to dereference the ppriv struct if not being eswitch manager
The check for cpu hit statistics was not returning immediate false for
any non vport rep netdev and hence we crashed (say on mlx5 probed VFs) if
user-space tool was calling into any possible netdev in the system.

Fix that by doing a proper check before dereferencing.

Fixes: 1d447a3914 ('net/mlx5e: Extendable vport representor netdev private data')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Eli Cohen <eli@melloanox.com>
Reviewed-by: Eli Cohen <eli@melloanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-06-26 15:26:28 -07:00
Jakub Kicinski
68d676a089 nfp: bpf: don't stop offload if replace failed
Stopping offload completely if replace of program failed dates
back to days of transparent offload.  Back then we wanted to
silently fall back to the in-driver processing.  Today we mark
programs for offload when they are loaded into the kernel, so
the transparent offload is no longer a reality.

Flags check in the driver will only allow replace of a driver
program with another driver program or an offload program with
another offload program.

When driver program is replaced stopping offload is a no-op,
because driver program isn't offloaded.  When replacing
offloaded program if the offload fails the entire operation
will fail all the way back to user space and we should continue
using the old program.  IOW when replacing a driver program
stopping offload is unnecessary and when replacing offloaded
program - it's a bug, old program should continue to run.

In practice this bug would mean that if offload operation was to
fail (either due to FW communication error, kernel OOM or new
program being offloaded but for a different netdev) driver
would continue reporting that previous XDP program is offloaded
but in fact no program will be loaded in hardware.  The failure
is fairly unlikely (found by inspection, when working on the code)
but it's unpleasant.

Backport note: even though the bug was introduced in commit
cafa92ac25 ("nfp: bpf: add support for XDP_FLAGS_HW_MODE"),
this fix depends on commit 441a33031f ("net: xdp: don't allow
device-bound programs in driver mode"), so this fix is sufficient
only in v4.15 or newer.  Kernels v4.13.x and v4.14.x do need to
stop offload if it was transparent/opportunistic, i.e. if
XDP_FLAGS_HW_MODE was not set on running program.

Fixes: cafa92ac25 ("nfp: bpf: add support for XDP_FLAGS_HW_MODE")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-06-25 11:33:55 +02:00
Colin Ian King
829eb05365 sfc: make function efx_rps_hash_bucket static
The function efx_rps_hash_bucket is local to the source and
does not need to be in global scope, so make it static.

Cleans up sparse warning:
symbol 'efx_rps_hash_bucket' was not declared. Should it be static?

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-24 23:08:25 +09:00
Ganesh Goudar
5ce36338a3 cxgb4: when disabling dcb set txq dcb priority to 0
When we are disabling DCB, store "0" in txq->dcb_prio
since that's used for future TX Work Request "OVLAN_IDX"
values. Setting non zero priority upon disabling DCB
would halt the traffic.

Reported-by: AMG Zollner Robert <robert@cloudmedia.eu>
CC: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-24 11:43:16 +09:00
Geert Uytterhoeven
e020797b7d net: Remove depends on HAS_DMA in case of platform dependency
Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
In most cases this other symbol is an architecture or platform specific
symbol, or PCI.

Generic symbols and drivers without platform dependencies keep their
dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
cannot work anyway.

This simplifies the dependencies, and allows to improve compile-testing.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-23 10:44:30 +09:00
Antoine Tenart
c2cd650b5b net: mscc: make sparse happy
This patch fixes a sparse warning about using an incorrect type in
argument 2 of ocelot_write_rix(), as an u32 was expected but a __be32
was given. The conversion to u32 is forced, which is safe as the value
will be written as-is in the hardware without any modification.

Fixes: 08d02364b1 ("net: mscc: fix the injection header")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-23 10:42:02 +09:00
Antoine Tenart
271f7ff5aa net: mvneta: fix the Rx desc DMA address in the Rx path
When using s/w buffer management, buffers are allocated and DMA mapped.
When doing so on an arm64 platform, an offset correction is applied on
the DMA address, before storing it in an Rx descriptor. The issue is
this DMA address is then used later in the Rx path without removing the
offset correction. Thus the DMA address is wrong, which can led to
various issues.

This patch fixes this by removing the offset correction from the DMA
address retrieved from the Rx descriptor before using it in the Rx path.

Fixes: 8d5047cf9c ("net: mvneta: Convert to be 64 bits compatible")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-23 10:40:15 +09:00
Colin Ian King
40141bb480 net: ethernet: ti: davinci_cpdma: make function cpdma_desc_pool_create static
The function cpdma_desc_pool_create is local to the source and does not
need to be in global scope, so make it static.

Cleans up sparse warning:
warning: symbol 'cpdma_desc_pool_create' was not declared. Should it
be static?

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-22 09:31:09 +09:00
Harini Katakam
64d7839af8 net: macb: Fix ptp time adjustment for large negative delta
When delta passed to gem_ptp_adjtime is negative, the sign is
maintained in the ns_to_timespec64 conversion. Hence timespec_add
should be used directly. timespec_sub will just subtract the negative
value thus increasing the time difference.

Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-21 15:01:06 +09:00
Antoine Tenart
08d02364b1 net: mscc: fix the injection header
When injecting frames in the Ocelot switch driver an injection header
(IFH) should be used to configure various parameters related to a given
frame, such as the port onto which the frame should be departed or its
vlan id. Other parameters in the switch configuration can led to an
injected frame being sent without an IFH but this led to various issues
as the per-frame parameters are then not used. This is especially true
when using multiple ports for injection.

The IFH was injected with the wrong endianness which led to the switch
not taking it into account as the IFH_INJ_BYPASS bit was then unset.
(The bit tells the switch to use the IFH over its internal
configuration). This patch fixes it.

In addition to the endianness fix, the IFH is also fixed. As it was
(unwillingly) unused, some of its fields were not configured the right
way.

Fixes: a556c76adc ("net: mscc: Add initial Ocelot switch support")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-21 10:29:46 +09:00
Bartosz Golaszewski
ea0820bb77 net: davinci_emac: match the mdio device against its compatible if possible
Device tree based systems without of_dev_auxdata will have the mdio
device named differently than "davinci_mdio(.0)". In this case use the
device's parent's compatible string for matching

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-21 10:23:48 +09:00
Ville Syrjälä
6d8b834989 r8169: Fix netpoll oops
Pass the correct thing to rtl8169_interrupt() from netpoll.

Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
Cc: netdev@vger.kernel.org
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Fixes: ebcd5daa7f ("r8169: change interrupt handler argument type")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-21 09:55:54 +09:00
Linus Torvalds
d8894a08d9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix crash on bpf_prog_load() errors, from Daniel Borkmann.

 2) Fix ATM VCC memory accounting, from David Woodhouse.

 3) fib6_info objects need RCU freeing, from Eric Dumazet.

 4) Fix SO_BINDTODEVICE handling for TCP sockets, from David Ahern.

 5) Fix clobbered error code in enic_open() failure path, from
    Govindarajulu Varadarajan.

 6) Propagate dev_get_valid_name() error returns properly, from Li
    RongQing.

 7) Fix suspend/resume in davinci_emac driver, from Bartosz Golaszewski.

 8) Various act_ife fixes (recursive locking, IDR leaks, etc.) from
    Davide Caratti.

 9) Fix buggy checksum handling in sungem driver, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (40 commits)
  ip: limit use of gso_size to udp
  stmmac: fix DMA channel hang in half-duplex mode
  net: stmmac: socfpga: add additional ocp reset line for Stratix10
  net: sungem: fix rx checksum support
  bpfilter: ignore binary files
  bpfilter: fix build error
  net/usb/drivers: Remove useless hrtimer_active check
  net/sched: act_ife: preserve the action control in case of error
  net/sched: act_ife: fix recursive lock and idr leak
  net: ethernet: fix suspend/resume in davinci_emac
  net: propagate dev_get_valid_name return code
  enic: do not overwrite error code
  net/tcp: Fix socket lookups with SO_BINDTODEVICE
  ptp: replace getnstimeofday64() with ktime_get_real_ts64()
  net/ipv6: respect rcu grace period before freeing fib6_info
  net: net_failover: fix typo in net_failover_slave_register()
  ipvlan: use ETH_MAX_MTU as max mtu
  net: hamradio: use eth_broadcast_addr
  enic: initialize enic->rfs_h.lock in enic_probe
  MAINTAINERS: Add Sam as the maintainer for NCSI
  ...
2018-06-21 07:13:42 +09:00
Bhadram Varka
b6cfffa7ad stmmac: fix DMA channel hang in half-duplex mode
HW does not support Half-duplex mode in multi-queue
scenario. Fix it by not advertising the Half-Duplex
mode if multi-queue enabled.

Signed-off-by: Bhadram Varka <vbhadram@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-20 14:35:20 +09:00
Dinh Nguyen
bc8a2d9bcb net: stmmac: socfpga: add additional ocp reset line for Stratix10
The Stratix10 platform has an additional reset line, OCP(Open Core Protocol),
that also needs to get deasserted for the stmmac ethernet controller to work.
Thus we need to update the Kconfig to include ARCH_STRATIX10 in order to build
dwmac-socfpga.

Also, remove the redundant check for the reset controller pointer. The
reset driver already checks for the pointer and returns 0 if the pointer
is NULL.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-20 14:34:26 +09:00
Eric Dumazet
12b03558ce net: sungem: fix rx checksum support
After commit 88078d98d1 ("net: pskb_trim_rcsum() and CHECKSUM_COMPLETE
are friends"), sungem owners reported the infamous "eth0: hw csum failure"
message.

CHECKSUM_COMPLETE has in fact never worked for this driver, but this
was masked by the fact that upper stacks had to strip the FCS, and
therefore skb->ip_summed was set back to CHECKSUM_NONE before
my recent change.

Driver configures a number of bytes to skip when the chip computes
the checksum, and for some reason only half of the Ethernet header
was skipped.

Then a second problem is that we should strip the FCS by default,
unless the driver is updated to eventually support NETIF_F_RXFCS in
the future.

Finally, a driver should check if NETIF_F_RXCSUM feature is enabled
or not, so that the admin can turn off rx checksum if wanted.

Many thanks to Andreas Schwab and Mathieu Malaterre for their
help in debugging this issue.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Meelis Roos <mroos@linux.ee>
Reported-by: Mathieu Malaterre <malat@debian.org>
Reported-by: Andreas Schwab <schwab@linux-m68k.org>
Tested-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-20 14:30:06 +09:00
Bartosz Golaszewski
dc45519eb1 net: ethernet: fix suspend/resume in davinci_emac
This patch reverts commit 3243ff2a05 ("net: ethernet: davinci_emac:
Deduplicate bus_find_device() by name matching") and adds a comment
which should stop anyone from reintroducing the same "fix" in the future.

We can't use bus_find_device_by_name() here because the device name is
not guaranteed to be 'davinci_mdio'. On some systems it can be
'davinci_mdio.0' so we need to use strncmp() against the first part of
the string to correctly match it.

Fixes: 3243ff2a05 ("net: ethernet: davinci_emac: Deduplicate bus_find_device() by name matching")
Cc: stable@vger.kernel.org
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-20 08:47:56 +09:00
Govindarajulu Varadarajan
56f772279a enic: do not overwrite error code
In failure path, we overwrite err to what vnic_rq_disable() returns. In
case it returns 0, enic_open() returns success in case of error.

Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Fixes: e8588e2685 ("enic: enable rq before updating rq descriptors")
Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-20 08:10:13 +09:00