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Eyal Davidovich [Mon, 8 Oct 2018 09:16:01 +0000 (12:16 +0300)]
net/mlx5e: Monitor counters commands support
new file monitor_stats.c for the new API.
add arm_monitor_counter new command support.
add set_monitor_counter new command support.
The device can monitor specific counters and provide an event to notify
when these counters are changed.
The monitoring is done in best effort manner where the minimum
notification period is 200 ms, however when the device is loaded, the
notification might be delayed.
To configure the required counters to be monitored, the
SET_MONITOR_COUNTER command shall be used with a list of counters to be
monitored.
The device firmware can monitor up to HCA_CAP.max_num_of_monitor_counters.
The configuration is done based on counter type (such as ppcnt, q counter,
etc) and additional param according to the type of counter selected.
Upon monitor counter change, the device will generate
Monitor_Counter_Change event.
The device will not generate new events unless the driver re-arms the
monitoring functionality, using the ARM_MONITOR_COUNTER command.
Signed-off-by: Eyal Davidovich <eyald@mellanox.com>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eyal Davidovich [Sun, 7 Oct 2018 12:18:37 +0000 (15:18 +0300)]
net/mlx5e: Avoid query PPCNT register if not supported by the device
PPCNT is not supported if PCAM access reg is supported and ppcnt bit is clear.
Signed-off-by: Eyal Davidovich <eyald@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Daniel Jurgens [Mon, 5 Nov 2018 22:05:37 +0000 (16:05 -0600)]
net/mlx5e: Use CQE padding for Ethernet CQs
Writing 64B CQEs to 128B cache lines results in a RMW operation. Padding
the CQEs to 128B if possible improves performance on 128B cache line
systems like PPC.
Testing on PPC showed up to a 24% improvement in small packet throughput
vs the default behavior, depending on the workload and system topology.
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Britstein [Sun, 18 Nov 2018 12:21:46 +0000 (14:21 +0200)]
net/mlx5e: Support multiple encapsulations for a TC flow
Currently a flow is associated with a single encap structure. The FW
extended destination features enables the driver to associate a flow
with multiple encap instances.
Change the encap id field from a flow scope to a per destination value
in the flow attributes struct. Use the encaps array to associate a flow
table entry with multiple encap entries.
Update the neigh logic to offload only if all encapsulations used in a
flow are connected, and un-offload upon the first one disconnected.
Note that the driver can now support up to two encap destinations.
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Britstein [Sun, 2 Dec 2018 07:44:13 +0000 (09:44 +0200)]
net/mlx5e: Allow association of a flow to multiple encaps
Currently a flow can be associated with a single encap entry. The
extended destination feature enables the driver to configure multiple
encap entries per flow.
Change the encap flow association field to array as a pre-step towards
supporting multiple encap destinations. Use only the first array
element, with no functional change.
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Britstein [Sun, 18 Nov 2018 11:16:52 +0000 (13:16 +0200)]
net/mlx5e: Change parse attr struct to accommodate multiple tunnel infos
Currently the driver can support only a single TC tunnel_set action.
Change the tunnel info fields to arrays, as a pre-step to support
multiple encapsulations for a single flow, with no functional change.
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Britstein [Mon, 26 Nov 2018 05:24:08 +0000 (07:24 +0200)]
net/mlx5e: Support header rewrite actions with remote port mirroring
A rule with the following actions is split to a two level FDB:
1. Forward to local mirror vport
2. Header rewrite
3. Forward to local vport
In the first level flow table, forward the packet to the local port and
forward the packet to the second level flow table for header rewrite and
local port forwarding. This configuration fails when mirroring to a
remote encapsulated destination because currently an FTE cannot support
encap and table destinations.
Use the extended destination capabilities to configure the first level
flow table with a multi-destination FTE to the uplink and second level
table and the second level flow table for the header rewrite and local
port forwarding.
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Britstein [Thu, 22 Nov 2018 12:04:33 +0000 (14:04 +0200)]
net/mlx5e: Replace the split logic with extended destination
Currently the FTE encap flag applies to all destinations.
To support mirroring encapsulated traffic to a local port the driver
split the two destinations to two flow table entries:
Table#0: - FWD to the local vport
- Goto table#1
Table#1: - Encap and FWD to wire
The firmware extended destination capabilities enable the driver to set
an encapsulation flag per destination.
Remove the split logic and use the extended destination mechanism
instead.
Note that split technique is still required for pedit and VLAN push
scenarios.
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Britstein [Tue, 4 Dec 2018 06:06:41 +0000 (08:06 +0200)]
net/mlx5e: Annul encap action ordering requirement
Currently a FW syndrome is emitted if the driver configures a
multi-destination FTE where the first destination is a tunneled uplink
port and the second destination is a local vPort.
Support this scenario by creating a multi-destination FTE using the
firmware's extended destination capabilities.
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Britstein [Sat, 1 Dec 2018 07:40:43 +0000 (09:40 +0200)]
net/mlx5e: Move flow attr reformat action bit to per dest flags
Flow attr reformat action bit is moved from the global action bits to a
per destination flags field, as a pre-step for adding additional flags
to support encapsulation properties per destination, with no
functionality change.
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Britstein [Sat, 1 Dec 2018 07:40:43 +0000 (09:40 +0200)]
net/mlx5e: Refactor eswitch flow attr for destination specific properties
Currently the eswitch flow attr structure stores each destination
specific property in its own specific array.
Group them in an array of destination structures as a pre-step towards
adding additional destination specific field properties.
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Britstein [Fri, 23 Nov 2018 07:38:27 +0000 (09:38 +0200)]
net/mlx5: E-Switch, Rename esw attr mirror count field
The mirror count esw attributes field is used to determine if splitting
the rule to two FTEs is required while programming e-switch mirroring.
Rename it to split count, making it clearer with no functional change.
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Britstein [Sun, 18 Nov 2018 06:25:17 +0000 (08:25 +0200)]
net/mlx5: Consider encapsulation properties when comparing destinations
Currently the driver identifies identical vport destinations by
comparing the vport ID. The FW extended destination feature enables the
driver to forward the packet to the same vport with multiple
encapsulation properties.
Change the vport destination comparison logic to compare
the encapsulation properties in addition to the vport ID.
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Daniel Borkmann [Tue, 11 Dec 2018 09:26:33 +0000 (10:26 +0100)]
bpf: fix up uapi helper description and sync bpf header with tools
Minor markup fixup from bpf-next into net-next merge in the BPF helper
description of bpf_sk_lookup_tcp() and bpf_sk_lookup_udp(). Also sync
up the copy of bpf.h from tooling infrastructure.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 11 Dec 2018 02:00:43 +0000 (18:00 -0800)]
Merge git://git./linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
====================
pull-request: bpf-next 2018-12-11
The following pull-request contains BPF updates for your *net-next* tree.
It has three minor merge conflicts, resolutions:
1) tools/testing/selftests/bpf/test_verifier.c
Take first chunk with alignment_prevented_execution.
2) net/core/filter.c
[...]
case bpf_ctx_range_ptr(struct __sk_buff, flow_keys):
case bpf_ctx_range(struct __sk_buff, wire_len):
return false;
[...]
3) include/uapi/linux/bpf.h
Take the second chunk for the two cases each.
The main changes are:
1) Add support for BPF line info via BTF and extend libbpf as well
as bpftool's program dump to annotate output with BPF C code to
facilitate debugging and introspection, from Martin.
2) Add support for BPF_ALU | BPF_ARSH | BPF_{K,X} in interpreter
and all JIT backends, from Jiong.
3) Improve BPF test coverage on archs with no efficient unaligned
access by adding an "any alignment" flag to the BPF program load
to forcefully disable verifier alignment checks, from David.
4) Add a new bpf_prog_test_run_xattr() API to libbpf which allows for
proper use of BPF_PROG_TEST_RUN with data_out, from Lorenz.
5) Extend tc BPF programs to use a new __sk_buff field called wire_len
for more accurate accounting of packets going to wire, from Petar.
6) Improve bpftool to allow dumping the trace pipe from it and add
several improvements in bash completion and map/prog dump,
from Quentin.
7) Optimize arm64 BPF JIT to always emit movn/movk/movk sequence for
kernel addresses and add a dedicated BPF JIT backend allocator,
from Ard.
8) Add a BPF helper function for IR remotes to report mouse movements,
from Sean.
9) Various cleanups in BPF prog dump e.g. to make UAPI bpf_prog_info
member naming consistent with existing conventions, from Yonghong
and Song.
10) Misc cleanups and improvements in allowing to pass interface name
via cmdline for xdp1 BPF example, from Matteo.
11) Fix a potential segfault in BPF sample loader's kprobes handling,
from Daniel T.
12) Fix SPDX license in libbpf's README.rst, from Andrey.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Mon, 10 Dec 2018 21:54:07 +0000 (13:54 -0800)]
neighbor: gc_list changes should be protected by table lock
Adding and removing neighbor entries to / from the gc_list need to be
done while holding the table lock; a couple of places were missed in the
original patch.
Move the list_add_tail in neigh_alloc to ___neigh_create where the lock
is already obtained. Since neighbor entries should rarely be moved
to/from PERMANENT state, add lock/unlock around the gc_list changes in
neigh_change_state rather than extending the lock hold around all
neighbor updates.
Fixes:
58956317c8de ("neighbor: Improve garbage collection")
Reported-by: Andrei Vagin <avagin@gmail.com>
Reported-by: syzbot+6cc2fd1d3bdd2e007363@syzkaller.appspotmail.com
Reported-by: syzbot+35e87b87c00f386b041f@syzkaller.appspotmail.com
Reported-by: syzbot+b354d1fb59091ea73c37@syzkaller.appspotmail.com
Reported-by: syzbot+3ddead5619658537909b@syzkaller.appspotmail.com
Reported-by: syzbot+424d47d5c456ce8b2bbe@syzkaller.appspotmail.com
Reported-by: syzbot+e4d42eb35f6a27b0a628@syzkaller.appspotmail.com
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 11 Dec 2018 01:06:58 +0000 (17:06 -0800)]
Merge tag 'mlx5e-updates-2018-12-10' of git://git./linux/kernel/git/saeed/linux
Saeed Mahameed:
====================
mlx5e-updates-2018-12-10 (gre)
This patch set adds GRE offloading support to Mellanox ethernet driver.
Patches 1-5 replace the existing egdev mechanism with the new TC indirect
block binds mechanism that was introduced by Netronome:
7f76fa36754b ("net: sched: register callbacks for indirect tc block binds")
Patches 6-9 add GRE offloading support along with some required
refactoring work.
Patch 10, Add netif_is_gretap()/netif_is_ip6gretap()
- Changed the is_gretap_dev and is_ip6gretap_dev logic from structure
comparison to string comparison of the rtnl_link_ops kind field.
Patch 11, add GRE offloading support to mlx5.
Patch 12 removes the egdev mechanism from TC as it is no longer used by
any of the drivers.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Oz Shlomo [Tue, 6 Nov 2018 07:58:37 +0000 (09:58 +0200)]
net/sched: Remove egdev mechanism
The egdev mechanism was replaced by the TC indirect block notifications
platform.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Cc: John Hurley <john.hurley@netronome.com>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Oz Shlomo [Mon, 29 Oct 2018 06:54:42 +0000 (08:54 +0200)]
net/mlx5e: Add GRE protocol offloading
Add HW offloading support for TC flower filters configured on
gretap/ip6gretap net devices.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Oz Shlomo [Wed, 21 Nov 2018 10:15:34 +0000 (12:15 +0200)]
net: Add netif_is_gretap()/netif_is_ip6gretap()
Changed the is_gretap_dev and is_ip6gretap_dev logic from structure
comparison to string comparison of the rtnl_link_ops kind field.
This approach aligns with the current identification methods and function
names of vxlan and geneve network devices.
Convert mlxsw to use these helpers and use them in downstream mlx5 patch.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Oz Shlomo [Sun, 2 Dec 2018 12:43:27 +0000 (14:43 +0200)]
net/mlx5e: Move TC tunnel offloading code to separate source file
Move tunnel offloading related code to a separate source file for better
code maintainability.
Code refactoring with no functional change.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Oz Shlomo [Wed, 14 Nov 2018 13:21:27 +0000 (15:21 +0200)]
net/mlx5e: Branch according to classified tunnel type
Currently the tunnel offloading encap/decap methods assumes that VXLAN
is the sole tunneling protocol. Lay the infrastructure for supporting
multiple tunneling protocols by branching according to the tunnel
net device kind.
Encap filters tunnel type is determined according to the egress/mirred
net device. Decap filters classify the tunnel type according to the
filter's ingress net device kind.
Distinguish between the tunnel type as defined by the SW model and
the FW reformat type that specifies the HW operation being made.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Oz Shlomo [Wed, 14 Nov 2018 13:41:50 +0000 (15:41 +0200)]
net/mlx5e: Refactor VXLAN tunnel decap offloading code
Separates the vxlan header match handling from the matching on the
general fields of ipv4/6 tunnels, thus allowing the common IP tunnel
match code to branch in down stream patch, to multiple IP tunnels.
This patch doesn't add any functionality.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Oz Shlomo [Wed, 14 Nov 2018 13:41:50 +0000 (15:41 +0200)]
net/mlx5e: Refactor VXLAN tunnel encap offloading code
Separates the vxlan header encap logic from the general ipv4/6
encapsulation methods, thus allowing the common IP encap/decap code to
branch in downstream patch to multiple IP tunnels.
Code refactoring with no functional change.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Oz Shlomo [Sun, 28 Oct 2018 11:03:54 +0000 (13:03 +0200)]
net/mlx5e: Replace egdev with indirect block notifications
Use TC indirect block notifications to offload filters that
are configured on higher level device interfaces (e.g. tunnel
devices). This mechanism replaces the current egdev implementation.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Oz Shlomo [Sun, 28 Oct 2018 08:46:34 +0000 (10:46 +0200)]
net/mlx5e: Propagate the filter's net device to mlx5e structures
Propagate the filter's net_device parameter to the tc flower parsed
attributes structure so that it can later be used in tunnel decap
offloading sequences.
Pre-step for replacing egdev logic with the indirect block
notification mechanism.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Oz Shlomo [Sun, 28 Oct 2018 07:14:50 +0000 (09:14 +0200)]
net/mlx5e: Provide the TC filter netdev as parameter to flower callbacks
Currently the driver controls flower filters that are installed on its
devices. However, with the introduction of the indirect block
notifications platform the driver may receive control events for filters
that are installed on higher level net devices (e.g. tunnel devices).
Therefore, the driver filter control API will not be able to implicitly
assume the filter's net device.
Explicitly specify the filter's net device, no functional change
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Oz Shlomo [Sun, 28 Oct 2018 06:34:51 +0000 (08:34 +0200)]
net/mlx5e: Support TC indirect block notifications for eswitch uplink reprs
Towards using this mechanism as the means to offload tunnel decap rules
set on SW tunnel devices instead of egdev, add the supporting structures
and functions.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Oz Shlomo [Thu, 25 Oct 2018 18:51:11 +0000 (21:51 +0300)]
net/mlx5e: Store eswitch uplink representor state on a dedicated struct
Currently only a single field in the representor private structure
is relevant for uplink representors. As a pre-step to allow adding
additional uplink representor fields, introduce uplink representor
private structure.
This is prepration step towards replacing egdev logic with the
indirect block notification mechanism. This patch doesn't change
any functionality.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Saeed Mahameed [Mon, 10 Dec 2018 23:43:47 +0000 (15:43 -0800)]
Merge branch 'mlx5-next' of git://git./linux/kernel/git/mellanox/linux
mlx5-next shared branch with rdma subtree to avoid mlx5 rdma v.s. netdev
conflicts.
Highlights:
1) RDMA ODP (On Demand Paging) improvements and moving ODP logic to
mlx5 RDMA driver
2) Improved mlx5 core driver and device events handling and provided API
for upper layers to subscribe to device events.
3) RDMA only code cleanup from mlx5 core
4) Add helper to get CQE opcode
5) Rework handling of port module events
6) shared mlx5_ifc.h updates to avoid conflicts
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Alexei Starovoitov [Mon, 10 Dec 2018 22:51:45 +0000 (14:51 -0800)]
Merge branch 'rename-info_cnt-to-nr_info'
Yonghong Song says:
====================
Before func_info and line_info are added to the kernel, there are several
fields in structure bpf_prog_info specifying the "count" of a user buffer, e.g.,
__u32 nr_jited_ksyms;
__u32 nr_jited_func_lens;
The naming convention has the prefix "nr_".
The func_info and line_info support added several fields
__u32 func_info_cnt;
__u32 line_info_cnt;
__u32 jited_line_info_cnt;
to indicate the "count" of buffers func_info, line_info and jited_line_info.
The original intention is to keep the field names the same as those in
structure bpf_attr, so it will be clear that the "count" returned to user
space will be the same as the one passed to the kernel during prog load.
Unfortunately, the field names *_info_cnt are not consistent with
other existing fields in bpf_prog_info.
This patch set renamed the fields *_info_cnt to nr_*_info
to keep naming convention consistent.
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Yonghong Song [Mon, 10 Dec 2018 22:14:10 +0000 (14:14 -0800)]
tools/bpf: rename *_info_cnt to nr_*_info
Rename all occurances of *_info_cnt field access
to nr_*_info in tools directory.
The local variables finfo_cnt, linfo_cnt and jited_linfo_cnt
in function do_dump() of tools/bpf/bpftool/prog.c are also
changed to nr_finfo, nr_linfo and nr_jited_linfo to
keep naming convention consistent.
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Yonghong Song [Mon, 10 Dec 2018 22:14:09 +0000 (14:14 -0800)]
tools/bpf: sync kernel uapi bpf.h to tools directory
Sync kernel uapi bpf.h "*_info_cnt => nr_*_info"
changes to tools directory.
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Yonghong Song [Mon, 10 Dec 2018 22:14:08 +0000 (14:14 -0800)]
bpf: rename *_info_cnt to nr_*_info in bpf_prog_info
In uapi bpf.h, currently we have the following fields in
the struct bpf_prog_info:
__u32 func_info_cnt;
__u32 line_info_cnt;
__u32 jited_line_info_cnt;
The above field names "func_info_cnt" and "line_info_cnt"
also appear in union bpf_attr for program loading.
The original intention is to keep the names the same
between bpf_prog_info and bpf_attr
so it will imply what we returned to user space will be
the same as what the user space passed to the kernel.
Such a naming convention in bpf_prog_info is not consistent
with other fields like:
__u32 nr_jited_ksyms;
__u32 nr_jited_func_lens;
This patch made this adjustment so in bpf_prog_info
newly introduced *_info_cnt becomes nr_*_info.
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Song Liu [Mon, 10 Dec 2018 19:17:50 +0000 (11:17 -0800)]
bpf: clean up bpf_prog_get_info_by_fd()
info.nr_jited_ksyms and info.nr_jited_func_lens cannot be 0 in these two
statements, so we don't need to check them.
Signed-off-by: Song Liu <songliubraving@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Or Gerlitz [Mon, 10 Dec 2018 21:15:17 +0000 (13:15 -0800)]
net/mlx5: Remove the get protocol device interface entry
This isn't used anywhere across the mlx5 driver stack,
remove it.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Britstein [Mon, 10 Dec 2018 21:15:16 +0000 (13:15 -0800)]
net/mlx5: Support extended destination format in flow steering command
Update the flow steering command formatting according to the extended
destination API.
Note that the FW dictates that multi destination FTEs that involve at
least one encap must use the extended destination format, while single
destination ones must use the legacy format.
Using extended destination format requires FW support. Check for its
capabilities and return error if not supported.
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Britstein [Mon, 10 Dec 2018 21:15:15 +0000 (13:15 -0800)]
net/mlx5: E-Switch, Change vhca id valid bool field to bit flag
Change the driver flow destination struct to use bit flags with the vhca
id valid being the 1st one. The flags field is more extendable and will
be used in downstream patch.
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eli Britstein [Mon, 10 Dec 2018 21:15:14 +0000 (13:15 -0800)]
net/mlx5: Introduce extended destination fields
Extended destinations provide the ability to configure different
encapsulation properties per destination on a single FTE. This is
needed for use-cases such as remote mirroring over tunneled networks.
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Oz Shlomo [Mon, 10 Dec 2018 21:15:13 +0000 (13:15 -0800)]
net/mlx5: Revise gre and nvgre key formats
GRE RFC defines a 32 bit key field. NVGRE RFC splits the 32 bit
key field to 24 bit VSID (gre_key_h) and 8 bit flow entropy (gre_key_l).
Define the two key parsing alternatives in a union, thus enabling both
access methods.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eyal Davidovich [Mon, 10 Dec 2018 21:15:12 +0000 (13:15 -0800)]
net/mlx5: Add monitor commands layout and event data
Will be used in downstream patch to monitor counter changes
by the HCA and report it to the driver by an event.
The driver will update its counters cached data accordingly.
Signed-off-by: Eyal Davidovich <eyald@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Mikhael Goikhman [Mon, 10 Dec 2018 21:15:11 +0000 (13:15 -0800)]
net/mlx5: Add support for plugged-disabled cable status in PME
Support a new hardware module status in port module events:
- module_status=0x4 (Cable plugged, but disabled)
Signed-off-by: Mikhael Goikhman <migo@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Mikhael Goikhman [Mon, 10 Dec 2018 21:15:10 +0000 (13:15 -0800)]
net/mlx5: Add support for PCIe power slot exceeded error in PME
Support a new hardware error type in port module events:
- error_type=0xc (PCIe system power slot exceeded)
Signed-off-by: Mikhael Goikhman <migo@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Mikhael Goikhman [Mon, 10 Dec 2018 21:15:09 +0000 (13:15 -0800)]
net/mlx5: Rework handling of port module events
Add explicit HW defined error values. For simplicity, keep counters for all
statuses starting from 0, although currently status=0 is not used.
Additionally, when HW signals an unexpected cable status, it is reported
now rather than ignored. And status counter is now updated on errors.
Signed-off-by: Mikhael Goikhman <migo@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Martin KaFai Lau [Mon, 10 Dec 2018 18:53:24 +0000 (10:53 -0800)]
bpf: bpftool: Fix newline and p_err issue
This patch fixes a few newline issues and also
replaces p_err with p_info in prog.c
Fixes:
b053b439b72a ("bpf: libbpf: bpftool: Print bpf_line_info during prog dump")
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Eric Dumazet [Mon, 10 Dec 2018 14:10:02 +0000 (06:10 -0800)]
tcp: handle EOR and FIN conditions the same in tcp_tso_should_defer()
In commit
f9bfe4e6a9d0 ("tcp: lack of available data can also cause
TSO defer") we moved the test in tcp_tso_should_defer() for packets
with a FIN flag, and we mentioned that the same would be done
later for EOR flag.
Both flags should be handled at the same time, after all other
heuristics have been considered. They both mean that no more bytes
can be added to this skb by an application.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 10 Dec 2018 20:07:56 +0000 (12:07 -0800)]
Merge branch 'dsa-ksz-Add-reset-GPIO-handling'
Marek Vasut says:
====================
net: dsa: ksz: Add reset GPIO handling
Add code to handle optional reset GPIO in the KSZ switch driver and a
matching DT property adjustments.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Marek Vasut [Mon, 10 Dec 2018 13:43:06 +0000 (14:43 +0100)]
net: dsa: ksz: Add reset GPIO handling
Add code to handle optional reset GPIO in the KSZ switch driver. The switch
has a reset GPIO line which can be controlled by the CPU, so make sure it is
configured correctly in such setups.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Cc: Woojung Huh <woojung.huh@microchip.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Tristram Ha <Tristram.Ha@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Marek Vasut [Mon, 10 Dec 2018 13:43:05 +0000 (14:43 +0100)]
net: dsa: ksz: Add optional reset GPIO to Microchip KSZ switch binding
Add optional reset GPIO, as such a signal is available on the KSZ switches.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Woojung Huh <Woojung.Huh@microchip.com>
Cc: David S. Miller <davem@davemloft.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yangtao Li [Mon, 10 Dec 2018 16:08:45 +0000 (11:08 -0500)]
bonding: convert to DEFINE_SHOW_ATTRIBUTE
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yangtao Li [Mon, 10 Dec 2018 15:57:38 +0000 (10:57 -0500)]
fjes: convert to DEFINE_SHOW_ATTRIBUTE
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yangtao Li [Mon, 10 Dec 2018 15:53:29 +0000 (10:53 -0500)]
net: xenbus: convert to DEFINE_SHOW_ATTRIBUTE
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yangtao Li [Mon, 10 Dec 2018 15:46:03 +0000 (10:46 -0500)]
ieee802154: at86rf230: convert to DEFINE_SHOW_ATTRIBUTE
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
YueHaibing [Mon, 10 Dec 2018 11:25:38 +0000 (19:25 +0800)]
ipvlan: Remove a useless comparison
Fix following gcc warning:
drivers/net/ipvlan/ipvlan_main.c:543:12: warning:
comparison is always false due to limited range of data type [-Wtype-limits]
'mode' is a u16 variable, IPVLAN_MODE_L2 is zero,
the comparison is always false
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Mon, 10 Dec 2018 09:29:48 +0000 (09:29 +0000)]
net: hns3: fix spelling mistake "offser" -> "offset"
There is a spelling mistake in a msg string, fix this.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiong Wang [Fri, 7 Dec 2018 17:16:18 +0000 (12:16 -0500)]
bpf: relax verifier restriction on BPF_MOV | BPF_ALU
Currently, the destination register is marked as unknown for 32-bit
sub-register move (BPF_MOV | BPF_ALU) whenever the source register type is
SCALAR_VALUE.
This is too conservative that some valid cases will be rejected.
Especially, this may turn a constant scalar value into unknown value that
could break some assumptions of verifier.
For example, test_l4lb_noinline.c has the following C code:
struct real_definition *dst
1: if (!get_packet_dst(&dst, &pckt, vip_info, is_ipv6))
2: return TC_ACT_SHOT;
3:
4: if (dst->flags & F_IPV6) {
get_packet_dst is responsible for initializing "dst" into valid pointer and
return true (1), otherwise return false (0). The compiled instruction
sequence using alu32 will be:
412: (54) (u32) r7 &= (u32) 1
413: (bc) (u32) r0 = (u32) r7
414: (95) exit
insn 413, a BPF_MOV | BPF_ALU, however will turn r0 into unknown value even
r7 contains SCALAR_VALUE 1.
This causes trouble when verifier is walking the code path that hasn't
initialized "dst" inside get_packet_dst, for which case 0 is returned and
we would then expect verifier concluding line 1 in the above C code pass
the "if" check, therefore would skip fall through path starting at line 4.
Now, because r0 returned from callee has became unknown value, so verifier
won't skip analyzing path starting at line 4 and "dst->flags" requires
dereferencing the pointer "dst" which actually hasn't be initialized for
this path.
This patch relaxed the code marking sub-register move destination. For a
SCALAR_VALUE, it is safe to just copy the value from source then truncate
it into 32-bit.
A unit test also included to demonstrate this issue. This test will fail
before this patch.
This relaxation could let verifier skipping more paths for conditional
comparison against immediate. It also let verifier recording a more
accurate/strict value for one register at one state, if this state end up
with going through exit without rejection and it is used for state
comparison later, then it is possible an inaccurate/permissive value is
better. So the real impact on verifier processed insn number is complex.
But in all, without this fix, valid program could be rejected.
>From real benchmarking on kernel selftests and Cilium bpf tests, there is
no impact on processed instruction number when tests ares compiled with
default compilation options. There is slightly improvements when they are
compiled with -mattr=+alu32 after this patch.
Also, test_xdp_noinline/-mattr=+alu32 now passed verification. It is
rejected before this fix.
Insn processed before/after this patch:
default -mattr=+alu32
Kernel selftest
===
test_xdp.o 371/371 369/369
test_l4lb.o 6345/6345 5623/5623
test_xdp_noinline.o 2971/2971 rejected/2727
test_tcp_estates.o 429/429 430/430
Cilium bpf
===
bpf_lb-DLB_L3.o: 2085/2085 1685/1687
bpf_lb-DLB_L4.o: 2287/2287 1986/1982
bpf_lb-DUNKNOWN.o: 690/690 622/622
bpf_lxc.o: 95033/95033 N/A
bpf_netdev.o: 7245/7245 N/A
bpf_overlay.o: 2898/2898 3085/2947
NOTE:
- bpf_lxc.o and bpf_netdev.o compiled by -mattr=+alu32 are rejected by
verifier due to another issue inside verifier on supporting alu32
binary.
- Each cilium bpf program could generate several processed insn number,
above number is sum of them.
v1->v2:
- Restrict the change on SCALAR_VALUE.
- Update benchmark numbers on Cilium bpf tests.
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
David S. Miller [Mon, 10 Dec 2018 05:27:48 +0000 (21:27 -0800)]
Merge git://git./linux/kernel/git/davem/net
Several conflicts, seemingly all over the place.
I used Stephen Rothwell's sample resolutions for many of these, if not
just to double check my own work, so definitely the credit largely
goes to him.
The NFP conflict consisted of a bug fix (moving operations
past the rhashtable operation) while chaning the initial
argument in the function call in the moved code.
The net/dsa/master.c conflict had to do with a bug fix intermixing of
making dsa_master_set_mtu() static with the fixing of the tagging
attribute location.
cls_flower had a conflict because the dup reject fix from Or
overlapped with the addition of port range classifiction.
__set_phy_supported()'s conflict was relatively easy to resolve
because Andrew fixed it in both trees, so it was just a matter
of taking the net-next copy. Or at least I think it was :-)
Joe Stringer's fix to the handling of netns id 0 in bpf_sk_lookup()
intermixed with changes on how the sdif and caller_net are calculated
in these code paths in net-next.
The remaining BPF conflicts were largely about the addition of the
__bpf_md_ptr stuff in 'net' overlapping with adjustments and additions
to the relevant data structure where the MD pointer macros are used.
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Wed, 5 Dec 2018 02:03:03 +0000 (18:03 -0800)]
net/mlx5: Move flow counters data structures from flow steering header
After the following flow counters API refactoring:
("net/mlx5: Use flow counter IDs and not the wrapping cache object")
flow counters private data structures mlx5_fc_cache and mlx5_fc are
redundantly exposed in fs_core.h, they have nothing to do with flow
steering core and they are private to fs_counter.c, this patch moves them
to where they belong and reduces their exposure in the driver.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Tariq Toukan [Wed, 5 Dec 2018 02:03:02 +0000 (18:03 -0800)]
IB/mlx5: Use helper to get CQE opcode
Use the new helper that extracts the opcode
from a CQE (completion queue entry) structure.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Tariq Toukan [Wed, 5 Dec 2018 02:03:01 +0000 (18:03 -0800)]
net/mlx5: Use helper to get CQE opcode
Introduce and use a helper that extracts the opcode
from a CQE (completion queue entry) structure.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Daniel Jurgens [Wed, 5 Dec 2018 02:03:00 +0000 (18:03 -0800)]
net/mlx5: When fetching CQEs return CQE instead of void pointer
The function is only used to retrieve CQEs, use the proper type as the
return value.
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Linus Torvalds [Sun, 9 Dec 2018 23:31:00 +0000 (15:31 -0800)]
Linux 4.20-rc6
Linus Torvalds [Sun, 9 Dec 2018 23:12:33 +0000 (15:12 -0800)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"A decent batch of fixes here. I'd say about half are for problems that
have existed for a while, and half are for new regressions added in
the 4.20 merge window.
1) Fix 10G SFP phy module detection in mvpp2, from Baruch Siach.
2) Revert bogus emac driver change, from Benjamin Herrenschmidt.
3) Handle BPF exported data structure with pointers when building
32-bit userland, from Daniel Borkmann.
4) Memory leak fix in act_police, from Davide Caratti.
5) Check RX checksum offload in RX descriptors properly in aquantia
driver, from Dmitry Bogdanov.
6) SKB unlink fix in various spots, from Edward Cree.
7) ndo_dflt_fdb_dump() only works with ethernet, enforce this, from
Eric Dumazet.
8) Fix FID leak in mlxsw driver, from Ido Schimmel.
9) IOTLB locking fix in vhost, from Jean-Philippe Brucker.
10) Fix SKB truesize accounting in ipv4/ipv6/netfilter frag memory
limits otherwise namespace exit can hang. From Jiri Wiesner.
11) Address block parsing length fixes in x25 from Martin Schiller.
12) IRQ and ring accounting fixes in bnxt_en, from Michael Chan.
13) For tun interfaces, only iface delete works with rtnl ops, enforce
this by disallowing add. From Nicolas Dichtel.
14) Use after free in liquidio, from Pan Bian.
15) Fix SKB use after passing to netif_receive_skb(), from Prashant
Bhole.
16) Static key accounting and other fixes in XPS from Sabrina Dubroca.
17) Partially initialized flow key passed to ip6_route_output(), from
Shmulik Ladkani.
18) Fix RTNL deadlock during reset in ibmvnic driver, from Thomas
Falcon.
19) Several small TCP fixes (off-by-one on window probe abort, NULL
deref in tail loss probe, SNMP mis-estimations) from Yuchung
Cheng"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (93 commits)
net/sched: cls_flower: Reject duplicated rules also under skip_sw
bnxt_en: Fix _bnxt_get_max_rings() for 57500 chips.
bnxt_en: Fix NQ/CP rings accounting on the new 57500 chips.
bnxt_en: Keep track of reserved IRQs.
bnxt_en: Fix CNP CoS queue regression.
net/mlx4_core: Correctly set PFC param if global pause is turned off.
Revert "net/ibm/emac: wrong bit is used for STA control"
neighbour: Avoid writing before skb->head in neigh_hh_output()
ipv6: Check available headroom in ip6_xmit() even without options
tcp: lack of available data can also cause TSO defer
ipv6: sr: properly initialize flowi6 prior passing to ip6_route_output
mlxsw: spectrum_switchdev: Fix VLAN device deletion via ioctl
mlxsw: spectrum_router: Relax GRE decap matching check
mlxsw: spectrum_switchdev: Avoid leaking FID's reference count
mlxsw: spectrum_nve: Remove easily triggerable warnings
ipv4: ipv6: netfilter: Adjust the frag mem limit when truesize changes
sctp: frag_point sanity check
tcp: fix NULL ref in tail loss probe
tcp: Do not underestimate rwnd_limited
net: use skb_list_del_init() to remove from RX sublists
...
Linus Torvalds [Sun, 9 Dec 2018 23:09:55 +0000 (15:09 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Three fixes: a boot parameter re-(re-)fix, a retpoline build artifact
fix and an LLVM workaround"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vdso: Drop implicit common-page-size linker flag
x86/build: Fix compiler support check for CONFIG_RETPOLINE
x86/boot: Clear RSDP address in boot_params for broken loaders
Sean Young [Thu, 6 Dec 2018 13:01:03 +0000 (13:01 +0000)]
media: bpf: add bpf function to report mouse movement
Some IR remotes have a directional pad or other pointer-like thing that
can be used as a mouse. Make it possible to decode these types of IR
protocols in BPF.
Cc: netdev@vger.kernel.org
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Linus Torvalds [Sun, 9 Dec 2018 22:21:33 +0000 (14:21 -0800)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull kprobes fixes from Ingo Molnar:
"Two kprobes fixes: a blacklist fix and an instruction patching related
corruption fix"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kprobes/x86: Blacklist non-attachable interrupt functions
kprobes/x86: Fix instruction patching corruption when copying more than one RIP-relative instruction
Linus Torvalds [Sun, 9 Dec 2018 22:03:56 +0000 (14:03 -0800)]
Merge branch 'efi-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar:
"Two fixes: a large-system fix and an earlyprintk fix with certain
resolutions"
* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/earlyprintk/efi: Fix infinite loop on some screen widths
x86/efi: Allocate e820 buffer before calling efi_exit_boot_service
Alexei Starovoitov [Sun, 9 Dec 2018 21:54:39 +0000 (13:54 -0800)]
Merge branch 'bpf_line_info'
Martin Lau says:
====================
This patch series introduces the bpf_line_info. Please see individual patch
for details.
It will be useful for introspection purpose, like:
[root@arch-fb-vm1 bpf]# ~/devshare/fb-kernel/linux/tools/bpf/bpftool/bpftool prog dump jited pinned /sys/fs/bpf/test_btf_haskv
[...]
int test_long_fname_2(struct dummy_tracepoint_args * arg):
bpf_prog_44a040bf25481309_test_long_fname_2:
; static int test_long_fname_2(struct dummy_tracepoint_args *arg)
0: push %rbp
1: mov %rsp,%rbp
4: sub $0x30,%rsp
b: sub $0x28,%rbp
f: mov %rbx,0x0(%rbp)
13: mov %r13,0x8(%rbp)
17: mov %r14,0x10(%rbp)
1b: mov %r15,0x18(%rbp)
1f: xor %eax,%eax
21: mov %rax,0x20(%rbp)
25: xor %esi,%esi
; int key = 0;
27: mov %esi,-0x4(%rbp)
; if (!arg->sock)
2a: mov 0x8(%rdi),%rdi
; if (!arg->sock)
2e: cmp $0x0,%rdi
32: je 0x0000000000000070
34: mov %rbp,%rsi
; counts = bpf_map_lookup_elem(&btf_map, &key);
37: add $0xfffffffffffffffc,%rsi
3b: movabs $0xffff8881139d7480,%rdi
45: add $0x110,%rdi
4c: mov 0x0(%rsi),%eax
4f: cmp $0x4,%rax
53: jae 0x000000000000005e
55: shl $0x3,%rax
59: add %rdi,%rax
5c: jmp 0x0000000000000060
5e: xor %eax,%eax
; if (!counts)
60: cmp $0x0,%rax
64: je 0x0000000000000070
; counts->v6++;
66: mov 0x4(%rax),%edi
69: add $0x1,%rdi
6d: mov %edi,0x4(%rax)
70: mov 0x0(%rbp),%rbx
74: mov 0x8(%rbp),%r13
78: mov 0x10(%rbp),%r14
7c: mov 0x18(%rbp),%r15
80: add $0x28,%rbp
84: leaveq
85: retq
[...]
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Martin KaFai Lau [Sat, 8 Dec 2018 00:42:32 +0000 (16:42 -0800)]
bpf: libbpf: bpftool: Print bpf_line_info during prog dump
This patch adds print bpf_line_info function in 'prog dump jitted'
and 'prog dump xlated':
[root@arch-fb-vm1 bpf]# ~/devshare/fb-kernel/linux/tools/bpf/bpftool/bpftool prog dump jited pinned /sys/fs/bpf/test_btf_haskv
[...]
int test_long_fname_2(struct dummy_tracepoint_args * arg):
bpf_prog_44a040bf25481309_test_long_fname_2:
; static int test_long_fname_2(struct dummy_tracepoint_args *arg)
0: push %rbp
1: mov %rsp,%rbp
4: sub $0x30,%rsp
b: sub $0x28,%rbp
f: mov %rbx,0x0(%rbp)
13: mov %r13,0x8(%rbp)
17: mov %r14,0x10(%rbp)
1b: mov %r15,0x18(%rbp)
1f: xor %eax,%eax
21: mov %rax,0x20(%rbp)
25: xor %esi,%esi
; int key = 0;
27: mov %esi,-0x4(%rbp)
; if (!arg->sock)
2a: mov 0x8(%rdi),%rdi
; if (!arg->sock)
2e: cmp $0x0,%rdi
32: je 0x0000000000000070
34: mov %rbp,%rsi
; counts = bpf_map_lookup_elem(&btf_map, &key);
37: add $0xfffffffffffffffc,%rsi
3b: movabs $0xffff8881139d7480,%rdi
45: add $0x110,%rdi
4c: mov 0x0(%rsi),%eax
4f: cmp $0x4,%rax
53: jae 0x000000000000005e
55: shl $0x3,%rax
59: add %rdi,%rax
5c: jmp 0x0000000000000060
5e: xor %eax,%eax
; if (!counts)
60: cmp $0x0,%rax
64: je 0x0000000000000070
; counts->v6++;
66: mov 0x4(%rax),%edi
69: add $0x1,%rdi
6d: mov %edi,0x4(%rax)
70: mov 0x0(%rbp),%rbx
74: mov 0x8(%rbp),%r13
78: mov 0x10(%rbp),%r14
7c: mov 0x18(%rbp),%r15
80: add $0x28,%rbp
84: leaveq
85: retq
[...]
With linum:
[root@arch-fb-vm1 bpf]# ~/devshare/fb-kernel/linux/tools/bpf/bpftool/bpftool prog dump jited pinned /sys/fs/bpf/test_btf_haskv linum
int _dummy_tracepoint(struct dummy_tracepoint_args * arg):
bpf_prog_b07ccb89267cf242__dummy_tracepoint:
; return test_long_fname_1(arg); [file:/data/users/kafai/fb-kernel/linux/tools/testing/selftests/bpf/test_btf_haskv.c line_num:54 line_col:9]
0: push %rbp
1: mov %rsp,%rbp
4: sub $0x28,%rsp
b: sub $0x28,%rbp
f: mov %rbx,0x0(%rbp)
13: mov %r13,0x8(%rbp)
17: mov %r14,0x10(%rbp)
1b: mov %r15,0x18(%rbp)
1f: xor %eax,%eax
21: mov %rax,0x20(%rbp)
25: callq 0x000000000000851e
; return test_long_fname_1(arg); [file:/data/users/kafai/fb-kernel/linux/tools/testing/selftests/bpf/test_btf_haskv.c line_num:54 line_col:2]
2a: xor %eax,%eax
2c: mov 0x0(%rbp),%rbx
30: mov 0x8(%rbp),%r13
34: mov 0x10(%rbp),%r14
38: mov 0x18(%rbp),%r15
3c: add $0x28,%rbp
40: leaveq
41: retq
[...]
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Martin KaFai Lau [Sat, 8 Dec 2018 00:42:31 +0000 (16:42 -0800)]
bpf: libbpf: Add btf_line_info support to libbpf
This patch adds bpf_line_info support to libbpf:
1) Parsing the line_info sec from ".BTF.ext"
2) Relocating the line_info. If the main prog *_info relocation
fails, it will ignore the remaining subprog line_info and continue.
If the subprog *_info relocation fails, it will bail out.
3) BPF_PROG_LOAD a prog with line_info
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Martin KaFai Lau [Sat, 8 Dec 2018 00:42:29 +0000 (16:42 -0800)]
bpf: libbpf: Refactor and bug fix on the bpf_func_info loading logic
This patch refactor and fix a bug in the libbpf's bpf_func_info loading
logic. The bug fix and refactoring are targeting the same
commit
2993e0515bb4 ("tools/bpf: add support to read .BTF.ext sections")
which is in the bpf-next branch.
1) In bpf_load_program_xattr(), it should retry when errno == E2BIG
regardless of log_buf and log_buf_sz. This patch fixes it.
2) btf_ext__reloc_init() and btf_ext__reloc() are essentially
the same except btf_ext__reloc_init() always has insns_cnt == 0.
Hence, btf_ext__reloc_init() is removed.
btf_ext__reloc() is also renamed to btf_ext__reloc_func_info()
to get ready for the line_info support in the next patch.
3) Consolidate func_info section logic from "btf_ext_parse_hdr()",
"btf_ext_validate_func_info()" and "btf_ext__new()" to
a new function "btf_ext_copy_func_info()" such that similar
logic can be reused by the later libbpf's line_info patch.
4) The next line_info patch will store line_info_cnt instead of
line_info_len in the bpf_program because the kernel is taking
line_info_cnt also. It will save a few "len" to "cnt" conversions
and will also save some function args.
Hence, this patch also makes bpf_program to store func_info_cnt
instead of func_info_len.
5) btf_ext depends on btf. e.g. the func_info's type_id
in ".BTF.ext" is not useful when ".BTF" is absent.
This patch only init the obj->btf_ext pointer after
it has successfully init the obj->btf pointer.
This can avoid always checking "obj->btf && obj->btf_ext"
together for accessing ".BTF.ext". Checking "obj->btf_ext"
alone will do.
6) Move "struct btf_sec_func_info" from btf.h to btf.c.
There is no external usage outside btf.c.
Fixes:
2993e0515bb4 ("tools/bpf: add support to read .BTF.ext sections")
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Martin KaFai Lau [Sat, 8 Dec 2018 00:42:28 +0000 (16:42 -0800)]
bpf: Add unit tests for bpf_line_info
Add unit tests for bpf_line_info for both BPF_PROG_LOAD and
BPF_OBJ_GET_INFO_BY_FD.
jit enabled:
[root@arch-fb-vm1 bpf]# ./test_btf -k 0
BTF prog info raw test[5] (line_info (No subprog)): OK
BTF prog info raw test[6] (line_info (No subprog. insn_off >= prog->len)): OK
BTF prog info raw test[7] (line_info (No subprog. zero tailing line_info): OK
BTF prog info raw test[8] (line_info (No subprog. nonzero tailing line_info)): OK
BTF prog info raw test[9] (line_info (subprog)): OK
BTF prog info raw test[10] (line_info (subprog + func_info)): OK
BTF prog info raw test[11] (line_info (subprog. missing 1st func line info)): OK
BTF prog info raw test[12] (line_info (subprog. missing 2nd func line info)): OK
BTF prog info raw test[13] (line_info (subprog. unordered insn offset)): OK
jit disabled:
BTF prog info raw test[5] (line_info (No subprog)): not jited. skipping jited_line_info check. OK
BTF prog info raw test[6] (line_info (No subprog. insn_off >= prog->len)): OK
BTF prog info raw test[7] (line_info (No subprog. zero tailing line_info): not jited. skipping jited_line_info check. OK
BTF prog info raw test[8] (line_info (No subprog. nonzero tailing line_info)): OK
BTF prog info raw test[9] (line_info (subprog)): not jited. skipping jited_line_info check. OK
BTF prog info raw test[10] (line_info (subprog + func_info)): not jited. skipping jited_line_info check. OK
BTF prog info raw test[11] (line_info (subprog. missing 1st func line info)): OK
BTF prog info raw test[12] (line_info (subprog. missing 2nd func line info)): OK
BTF prog info raw test[13] (line_info (subprog. unordered insn offset)): OK
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Martin KaFai Lau [Sat, 8 Dec 2018 00:42:27 +0000 (16:42 -0800)]
bpf: Refactor and bug fix in test_func_type in test_btf.c
1) bpf_load_program_xattr() is absorbing the EBIG error
which makes testing this case impossible. It is replaced
with a direct syscall(__NR_bpf, BPF_PROG_LOAD,...).
2) The test_func_type() is renamed to test_info_raw() to
prepare for the new line_info test in the next patch.
3) The bpf_obj_get_info_by_fd() testing for func_info
is refactored to test_get_finfo(). A new
test_get_linfo() will be added in the next patch
for testing line_info purpose.
4) The test->func_info_cnt is checked instead of
a static value "2".
5) Remove unnecessary "\n" in error message.
6) Adding back info_raw_test_num to the cmd arg such
that a specific test case can be tested, like
all other existing tests.
7) Fix a bug in handling expected_prog_load_failure.
A test could pass even if prog_fd != -1 while
expected_prog_load_failure is true.
8) The min rec_size check should be < 8 instead of < 4.
Fixes:
4798c4ba3ba9 ("tools/bpf: extends test_btf to test load/retrieve func_type info")
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Martin KaFai Lau [Sat, 8 Dec 2018 00:42:26 +0000 (16:42 -0800)]
bpf: tools: Sync uapi bpf.h
Sync uapi bpf.h to tools/include/uapi/linux for
the new bpf_line_info.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Martin KaFai Lau [Sat, 8 Dec 2018 00:42:25 +0000 (16:42 -0800)]
bpf: Add bpf_line_info support
This patch adds bpf_line_info support.
It accepts an array of bpf_line_info objects during BPF_PROG_LOAD.
The "line_info", "line_info_cnt" and "line_info_rec_size" are added
to the "union bpf_attr". The "line_info_rec_size" makes
bpf_line_info extensible in the future.
The new "check_btf_line()" ensures the userspace line_info is valid
for the kernel to use.
When the verifier is translating/patching the bpf_prog (through
"bpf_patch_insn_single()"), the line_infos' insn_off is also
adjusted by the newly added "bpf_adj_linfo()".
If the bpf_prog is jited, this patch also provides the jited addrs (in
aux->jited_linfo) for the corresponding line_info.insn_off.
"bpf_prog_fill_jited_linfo()" is added to fill the aux->jited_linfo.
It is currently called by the x86 jit. Other jits can also use
"bpf_prog_fill_jited_linfo()" and it will be done in the followup patches.
In the future, if it deemed necessary, a particular jit could also provide
its own "bpf_prog_fill_jited_linfo()" implementation.
A few "*line_info*" fields are added to the bpf_prog_info such
that the user can get the xlated line_info back (i.e. the line_info
with its insn_off reflecting the translated prog). The jited_line_info
is available if the prog is jited. It is an array of __u64.
If the prog is not jited, jited_line_info_cnt is 0.
The verifier's verbose log with line_info will be done in
a follow up patch.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Or Gerlitz [Sun, 9 Dec 2018 16:10:24 +0000 (18:10 +0200)]
net/sched: cls_flower: Reject duplicated rules also under skip_sw
Currently, duplicated rules are rejected only for skip_hw or "none",
hence allowing users to push duplicates into HW for no reason.
Use the flower tables to protect for that.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reported-by: Chris Mi <chrism@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 9 Dec 2018 19:46:59 +0000 (11:46 -0800)]
Merge branch 'bnxt_en-Bug-fixes'
Michael Chan says:
====================
bnxt_en: Bug fixes.
The first patch fixes a regression on CoS queue setup, introduced
recently by the 57500 new chip support patches. The rest are
fixes related to ring and resource accounting on the new 57500 chips.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 9 Dec 2018 12:01:02 +0000 (07:01 -0500)]
bnxt_en: Fix _bnxt_get_max_rings() for 57500 chips.
The CP rings are accounted differently on the new 57500 chips. There
must be enough CP rings for the sum of RX and TX rings on the new
chips. The current logic may be over-estimating the RX and TX rings.
The output parameter max_cp should be the maximum NQs capped by
MSIX vectors available for networking in the context of 57500 chips.
The existing code which uses CMPL rings capped by the MSIX vectors
works most of the time but is not always correct.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 9 Dec 2018 12:01:01 +0000 (07:01 -0500)]
bnxt_en: Fix NQ/CP rings accounting on the new 57500 chips.
The new 57500 chips have introduced the NQ structure in addition to
the existing CP rings in all chips. We need to introduce a new
bnxt_nq_rings_in_use(). On legacy chips, the 2 functions are the
same and one will just call the other. On the new chips, they
refer to the 2 separate ring structures. The new function is now
called to determine the resource (NQ or CP rings) associated with
MSIX that are in use.
On 57500 chips, the RDMA driver does not use the CP rings so
we don't need to do the subtraction adjustment.
Fixes:
41e8d7983752 ("bnxt_en: Modify the ring reservation functions for 57500 series chips.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 9 Dec 2018 12:01:00 +0000 (07:01 -0500)]
bnxt_en: Keep track of reserved IRQs.
The new 57500 chips use 1 NQ per MSIX vector, whereas legacy chips use
1 CP ring per MSIX vector. To better unify this, add a resv_irqs
field to struct bnxt_hw_resc. On legacy chips, we initialize resv_irqs
with resv_cp_rings. On new chips, we initialize it with the allocated
MSIX resources.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sun, 9 Dec 2018 12:00:59 +0000 (07:00 -0500)]
bnxt_en: Fix CNP CoS queue regression.
Recent changes to support the 57500 devices have created this
regression. The bnxt_hwrm_queue_qportcfg() call was moved to be
called earlier before the RDMA support was determined, causing
the CoS queues configuration to be set before knowing whether RDMA
was supported or not. Fix it by moving it to the right place right
after RDMA support is determined.
Fixes:
98f04cf0f1fc ("bnxt_en: Check context memory requirements from firmware.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sun, 9 Dec 2018 18:43:17 +0000 (10:43 -0800)]
Merge tag 'char-misc-4.20-rc6' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small driver fixes for 4.20-rc6.
There is a hyperv fix that for some reaon took forever to get into a
shape that could be applied to the tree properly, but resolves a much
reported issue. The others are some gnss patches, one a bugfix and the
two others updates to the MAINTAINERS file to properly match the gnss
files in the tree.
All have been in linux-next for a while with no reported issues"
* tag 'char-misc-4.20-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
MAINTAINERS: exclude gnss from SIRFPRIMA2 regex matching
MAINTAINERS: add gnss scm tree
gnss: sirf: fix activation retry handling
Drivers: hv: vmbus: Offload the handling of channels to two workqueues
Linus Torvalds [Sun, 9 Dec 2018 18:35:33 +0000 (10:35 -0800)]
Merge tag 'staging-4.20-rc6' of git://git./linux/kernel/git/gregkh/staging
Pull staging fixes from Greg KH:
"Here are two staging driver bugfixes for 4.20-rc6.
One is a revert of a previously incorrect patch that was merged a
while ago, and the other resolves a possible buffer overrun that was
found by code inspection.
Both of these have been in the linux-next tree with no reported
issues"
* tag 'staging-4.20-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
Revert commit
ef9209b642f "staging: rtl8723bs: Fix indenting errors and an off-by-one mistake in core/rtw_mlme_ext.c"
staging: rtl8712: Fix possible buffer overrun
Linus Torvalds [Sun, 9 Dec 2018 18:24:29 +0000 (10:24 -0800)]
Merge tag 'tty-4.20-rc6' of git://git./linux/kernel/git/gregkh/tty
Pull tty driver fixes from Greg KH:
"Here are three small tty driver fixes for 4.20-rc6
Nothing major, just some bug fixes for reported issues. Full details
are in the shortlog.
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-4.20-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
kgdboc: fix KASAN global-out-of-bounds bug in param_set_kgdboc_var()
tty: serial: 8250_mtk: always resume the device in probe.
tty: do not set TTY_IO_ERROR flag if console port
Linus Torvalds [Sun, 9 Dec 2018 18:18:24 +0000 (10:18 -0800)]
Merge tag 'usb-4.20-rc6' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes for 4.20-rc6
The "largest" here are some xhci fixes for reported issues. Also here
is a USB core fix, some quirk additions, and a usb-serial fix which
required the export of one of the tty layer's functions to prevent
code duplication. The tty maintainer agreed with this change.
All of these have been in linux-next with no reported issues"
* tag 'usb-4.20-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
xhci: Prevent U1/U2 link pm states if exit latency is too long
xhci: workaround CSS timeout on AMD SNPS 3.0 xHC
USB: check usb_get_extra_descriptor for proper size
USB: serial: console: fix reported terminal settings
usb: quirk: add no-LPM quirk on SanDisk Ultra Flair device
USB: Fix invalid-free bug in port_over_current_notify()
usb: appledisplay: Add 27" Apple Cinema Display
Linus Torvalds [Sun, 9 Dec 2018 18:15:13 +0000 (10:15 -0800)]
Merge tag '4.20-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Three small fixes: a fix for smb3 direct i/o, a fix for CIFS DFS for
stable and a minor cifs Kconfig fix"
* tag '4.20-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
CIFS: Avoid returning EBUSY to upper layer VFS
cifs: Fix separator when building path from dentry
cifs: In Kconfig CONFIG_CIFS_POSIX needs depends on legacy (insecure cifs)
Linus Torvalds [Sun, 9 Dec 2018 17:54:04 +0000 (09:54 -0800)]
Merge tag 'dax-fixes-4.20-rc6' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull dax fixes from Dan Williams:
"The last of the known regression fixes and fallout from the Xarray
conversion of the filesystem-dax implementation.
On the path to debugging why the dax memory-failure injection test
started failing after the Xarray conversion a couple more fixes for
the dax_lock_mapping_entry(), now called dax_lock_page(), surfaced.
Those plus the bug that started the hunt are now addressed. These
patches have appeared in a -next release with no issues reported.
Note the touches to mm/memory-failure.c are just the conversion to the
new function signature for dax_lock_page().
Summary:
- Fix the Xarray conversion of fsdax to properly handle
dax_lock_mapping_entry() in the presense of pmd entries
- Fix inode destruction racing a new lock request"
* tag 'dax-fixes-4.20-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
dax: Fix unlock mismatch with updated API
dax: Don't access a freed inode
dax: Check page->mapping isn't NULL
Linus Torvalds [Sun, 9 Dec 2018 17:46:54 +0000 (09:46 -0800)]
Merge tag 'libnvdimm-fixes-4.20-rc6' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"A regression fix for the Address Range Scrub implementation, yes
another one, and support for platforms that misalign persistent memory
relative to the Linux memory hotplug section constraint. Longer term,
support for sub-section memory hotplug would alleviate alignment
waste, but until then this hack allows a 'struct page' memmap to be
established for these misaligned memory regions.
These have all appeared in a -next release, and thanks to Patrick for
reporting and testing the alignment padding fix.
Summary:
- Unless and until the core mm handles memory hotplug units smaller
than a section (128M), persistent memory namespaces must be padded
to section alignment.
The libnvdimm core already handled section collision with "System
RAM", but some configurations overlap independent "Persistent
Memory" ranges within a section, so additional padding injection is
added for that case.
- The recent reworks of the ARS (address range scrub) state machine
to reduce the number of state flags inadvertantly missed a
conversion of acpi_nfit_ars_rescan() call sites. Fix the regression
whereby user-requested ARS results in a "short" scrub rather than a
"long" scrub.
- Fixup the unit tests to handle / test the 128M section alignment of
mocked test resources.
* tag 'libnvdimm-fixes-4.20-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
acpi/nfit: Fix user-initiated ARS to be "ARS-long" rather than "ARS-short"
libnvdimm, pfn: Pad pfn namespaces relative to other regions
tools/testing/nvdimm: Align test resources to 128M
Andrew Lunn [Sat, 8 Dec 2018 16:06:31 +0000 (17:06 +0100)]
net: dsa: Make dsa_master_set_mtu() static
Add the missing static keyword.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 8 Dec 2018 16:05:18 +0000 (17:05 +0100)]
net: dsa: Restore MTU on master device on unload
A previous change tries to set the MTU on the master device to take
into account the DSA overheads. This patch tries to reset the master
device back to the default MTU.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 9 Dec 2018 05:33:31 +0000 (21:33 -0800)]
Merge branch 'platform-data-controls-for-mdio-gpio'
Andrew Lunn says:
====================
platform data controls for mdio-gpio
Soon to be mainlined is an x86 platform with a Marvell switch, and a
bit-banging MDIO bus. In order to make this work, the phy_mask of the
MDIO bus needs to be set to prevent scanning for PHYs, and the
phy_ignore_ta_mask needs to be set because the switch has broken
turnaround.
Add a platform_data structure with these parameters.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 8 Dec 2018 15:12:13 +0000 (16:12 +0100)]
net: phy: mdio-gpio: Add phy_ignore_ta_mask to platform data
The Marvell 6390 Ethernet switch family does not perform MDIO
turnaround correctly. Many hardware MDIO bus masters don't care about
this, but the bitbangging implementation in Linux does by default. Add
phy_ignore_ta_mask to the platform data so that the bitbangging code
can be told which devices are known to get TA wrong.
v2
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 8 Dec 2018 15:12:12 +0000 (16:12 +0100)]
net: phy: mdio-gpio: Add platform_data support for phy_mask
It is sometimes necessary to instantiate a bit-banging MDIO bus as a
platform device, without the aid of device tree.
When device tree is being used, the bus is not scanned for devices,
only those devices which are in device tree are probed. Without device
tree, by default, all addresses on the bus are scanned. This may then
find a device which is not a PHY, e.g. a switch. And the switch may
have registers containing values which look like a PHY. So during the
scan, a PHY device is wrongly created.
After the bus has been registered, a search is made for
mdio_board_info structures which indicates devices on the bus, and the
driver which should be used for them. This is typically used to
instantiate Ethernet switches from platform drivers. However, if the
scanning of the bus has created a PHY device at the same location as
indicated into the board info for a switch, the switch device is not
created, since the address is already busy.
This can be avoided by setting the phy_mask of the mdio bus. This mask
prevents addresses on the bus being scanned.
v2
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tarick Bedeir [Fri, 7 Dec 2018 08:30:26 +0000 (00:30 -0800)]
net/mlx4_core: Correctly set PFC param if global pause is turned off.
rx_ppp and tx_ppp can be set between 0 and 255, so don't clamp to 1.
Fixes:
6e8814ceb7e8 ("net/mlx4_en: Fix mixed PFC and Global pause user control requests")
Signed-off-by: Tarick Bedeir <tarick@google.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sun, 9 Dec 2018 01:45:20 +0000 (17:45 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal SoC fixes from Eduardo Valentin:
"Fixes for armada and broadcom thermal drivers"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal: broadcom: constify thermal_zone_of_device_ops structure
thermal: armada: constify thermal_zone_of_device_ops structure
thermal: bcm2835: Switch to SPDX identifier
thermal: armada: fix legacy resource fixup
thermal: armada: fix legacy validity test sense
Willem de Bruijn [Sat, 8 Dec 2018 11:22:46 +0000 (06:22 -0500)]
ip: silence udp zerocopy smatch false positive
extra_uref is used in __ip(6)_append_data only if uarg is set.
Smatch sees that the variable is passed to sock_zerocopy_put_abort.
This function accesses it only when uarg is set, but smatch cannot
infer this.
Make this dependency explicit.
Fixes:
52900d22288e ("udp: elide zerocopy operation in hot path")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sat, 8 Dec 2018 19:44:04 +0000 (11:44 -0800)]
Merge tag 'asm-generic-4.20' of git://git./linux/kernel/git/arnd/asm-generic
Pull asm-generic fix from Arnd Bergmann:
"Multiple people reported a bug I introduced in asm-generic/unistd.h in
4.20, this is the obvious bugfix to get glibc and others to correctly
build again on new architectures that no longer provide the old
fstatat64() family of system calls"
* tag 'asm-generic-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic: unistd.h: fixup broken macro include.
Linus Torvalds [Sat, 8 Dec 2018 19:33:26 +0000 (11:33 -0800)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A few clk driver fixes this time:
- Introduce protected-clock DT binding to fix breakage on qcom
sdm845-mtp boards where the qspi clks introduced this merge window
cause the firmware on those boards to take down the system if we
try to read the clk registers
- Fix a couple off-by-one errors found by Dan Carpenter
- Handle failure in zynq fixed factor clk driver to avoid using
uninitialized data"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: zynqmp: Off by one in zynqmp_is_valid_clock()
clk: mmp: Off by one in mmp_clk_add()
clk: mvebu: Off by one bugs in cp110_of_clk_get()
arm64: dts: qcom: sdm845-mtp: Mark protected gcc clocks
clk: qcom: Support 'protected-clocks' property
dt-bindings: clk: Introduce 'protected-clocks' property
clk: zynqmp: handle fixed factor param query error
Linus Torvalds [Sat, 8 Dec 2018 19:25:02 +0000 (11:25 -0800)]
Merge tag 'xfs-4.20-fixes-3' of git://git./fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"Here are hopefully the last set of fixes for 4.20.
There's a fix for a longstanding statfs reporting problem with project
quotas, a correction for page cache invalidation behaviors when
fallocating near EOF, and a fix for a broken metadata verifier return
code.
Finally, the most important fix is to the pipe splicing code (aka the
generic copy_file_range fallback) to avoid pointless short directio
reads by only asking the filesystem for as much data as there are
available pages in the pipe buffer. Our previous fix (simulated short
directio reads because the number of pages didn't match the length of
the read requested) caused subtle problems on overlayfs, so that part
is reverted.
Anyhow, this series passes fstests -g all on xfs and overlay+xfs, and
has passed 17 billion fsx operations problem-free since I started
testing
Summary:
- Fix broken project quota inode counts
- Fix incorrect PAGE_MASK/PAGE_SIZE usage
- Fix incorrect return value in btree verifier
- Fix WARN_ON remap flags false positive
- Fix splice read overflows"
* tag 'xfs-4.20-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
iomap: partially revert
4721a601099 (simulated directio short read on EFAULT)
splice: don't read more than available pipe space
vfs: allow some remap flags to be passed to vfs_clone_file_range
xfs: fix inverted return from xfs_btree_sblock_verify_crc
xfs: fix PAGE_MASK usage in xfs_free_file_space
fs/xfs: fix f_ffree value for statfs when project quota is set
David Rientjes [Fri, 7 Dec 2018 22:50:16 +0000 (14:50 -0800)]
Revert "mm, thp: consolidate THP gfp handling into alloc_hugepage_direct_gfpmask"
This reverts commit
89c83fb539f95491be80cdd5158e6f0ce329e317.
This should have been done as part of
2f0799a0ffc0 ("mm, thp: restore
node-local hugepage allocations"). The movement of the thp allocation
policy from alloc_pages_vma() to alloc_hugepage_direct_gfpmask() was
intended to only set __GFP_THISNODE for mempolicies that are not
MPOL_BIND whereas the revert could set this regardless of mempolicy.
While the check for MPOL_BIND between alloc_hugepage_direct_gfpmask()
and alloc_pages_vma() was racy, that has since been removed since the
revert. What is left is the possibility to use __GFP_THISNODE in
policy_node() when it is unexpected because the special handling for
hugepages in alloc_pages_vma() was removed as part of the consolidation.
Secondly, prior to
89c83fb539f9, alloc_pages_vma() implemented a somewhat
different policy for hugepage allocations, which were allocated through
alloc_hugepage_vma(). For hugepage allocations, if the allocating
process's node is in the set of allowed nodes, allocate with
__GFP_THISNODE for that node (for MPOL_PREFERRED, use that node with
__GFP_THISNODE instead). This was changed for shmem_alloc_hugepage() to
allow fallback to other nodes in
89c83fb539f9 as it did for new_page() in
mm/mempolicy.c which is functionally different behavior and removes the
requirement to only allocate hugepages locally.
So this commit does a full revert of
89c83fb539f9 instead of the partial
revert that was done in
2f0799a0ffc0. The result is the same thp
allocation policy for 4.20 that was in 4.19.
Fixes:
89c83fb539f9 ("mm, thp: consolidate THP gfp handling into alloc_hugepage_direct_gfpmask")
Fixes:
2f0799a0ffc0 ("mm, thp: restore node-local hugepage allocations")
Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>