linux-2.6-microblaze.git
3 years agoselftests/bpf: Add verifier tests for bpf_sk_lookup context access
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:35 +0000 (12:35 +0200)]
selftests/bpf: Add verifier tests for bpf_sk_lookup context access

Exercise verifier access checks for bpf_sk_lookup context fields.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200717103536.397595-15-jakub@cloudflare.com
3 years agotools/bpftool: Add name mappings for SK_LOOKUP prog and attach type
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:34 +0000 (12:35 +0200)]
tools/bpftool: Add name mappings for SK_LOOKUP prog and attach type

Make bpftool show human-friendly identifiers for newly introduced program
and attach type, BPF_PROG_TYPE_SK_LOOKUP and BPF_SK_LOOKUP, respectively.

Also, add the new prog type bash-completion, man page and help message.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200717103536.397595-14-jakub@cloudflare.com
3 years agolibbpf: Add support for SK_LOOKUP program type
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:33 +0000 (12:35 +0200)]
libbpf: Add support for SK_LOOKUP program type

Make libbpf aware of the newly added program type, and assign it a
section name.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200717103536.397595-13-jakub@cloudflare.com
3 years agobpf: Sync linux/bpf.h to tools/
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:32 +0000 (12:35 +0200)]
bpf: Sync linux/bpf.h to tools/

Newly added program, context type and helper is used by tests in a
subsequent patch. Synchronize the header file.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200717103536.397595-12-jakub@cloudflare.com
3 years agoudp6: Run SK_LOOKUP BPF program on socket lookup
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:31 +0000 (12:35 +0200)]
udp6: Run SK_LOOKUP BPF program on socket lookup

Same as for udp4, let BPF program override the socket lookup result, by
selecting a receiving socket of its choice or failing the lookup, if no
connected UDP socket matched packet 4-tuple.

Suggested-by: Marek Majkowski <marek@cloudflare.com>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200717103536.397595-11-jakub@cloudflare.com
3 years agoudp6: Extract helper for selecting socket from reuseport group
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:30 +0000 (12:35 +0200)]
udp6: Extract helper for selecting socket from reuseport group

Prepare for calling into reuseport from __udp6_lib_lookup as well.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200717103536.397595-10-jakub@cloudflare.com
3 years agoudp: Run SK_LOOKUP BPF program on socket lookup
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:29 +0000 (12:35 +0200)]
udp: Run SK_LOOKUP BPF program on socket lookup

Following INET/TCP socket lookup changes, modify UDP socket lookup to let
BPF program select a receiving socket before searching for a socket by
destination address and port as usual.

Lookup of connected sockets that match packet 4-tuple is unaffected by this
change. BPF program runs, and potentially overrides the lookup result, only
if a 4-tuple match was not found.

Suggested-by: Marek Majkowski <marek@cloudflare.com>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200717103536.397595-9-jakub@cloudflare.com
3 years agoudp: Extract helper for selecting socket from reuseport group
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:28 +0000 (12:35 +0200)]
udp: Extract helper for selecting socket from reuseport group

Prepare for calling into reuseport from __udp4_lib_lookup as well.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200717103536.397595-8-jakub@cloudflare.com
3 years agoinet6: Run SK_LOOKUP BPF program on socket lookup
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:27 +0000 (12:35 +0200)]
inet6: Run SK_LOOKUP BPF program on socket lookup

Following ipv4 stack changes, run a BPF program attached to netns before
looking up a listening socket. Program can return a listening socket to use
as result of socket lookup, fail the lookup, or take no action.

Suggested-by: Marek Majkowski <marek@cloudflare.com>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200717103536.397595-7-jakub@cloudflare.com
3 years agoinet6: Extract helper for selecting socket from reuseport group
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:26 +0000 (12:35 +0200)]
inet6: Extract helper for selecting socket from reuseport group

Prepare for calling into reuseport from inet6_lookup_listener as well.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200717103536.397595-6-jakub@cloudflare.com
3 years agoinet: Run SK_LOOKUP BPF program on socket lookup
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:25 +0000 (12:35 +0200)]
inet: Run SK_LOOKUP BPF program on socket lookup

Run a BPF program before looking up a listening socket on the receive path.
Program selects a listening socket to yield as result of socket lookup by
calling bpf_sk_assign() helper and returning SK_PASS code. Program can
revert its decision by assigning a NULL socket with bpf_sk_assign().

Alternatively, BPF program can also fail the lookup by returning with
SK_DROP, or let the lookup continue as usual with SK_PASS on return, when
no socket has been selected with bpf_sk_assign().

This lets the user match packets with listening sockets freely at the last
possible point on the receive path, where we know that packets are destined
for local delivery after undergoing policing, filtering, and routing.

With BPF code selecting the socket, directing packets destined to an IP
range or to a port range to a single socket becomes possible.

In case multiple programs are attached, they are run in series in the order
in which they were attached. The end result is determined from return codes
of all the programs according to following rules:

 1. If any program returned SK_PASS and selected a valid socket, the socket
    is used as result of socket lookup.
 2. If more than one program returned SK_PASS and selected a socket,
    last selection takes effect.
 3. If any program returned SK_DROP, and no program returned SK_PASS and
    selected a socket, socket lookup fails with -ECONNREFUSED.
 4. If all programs returned SK_PASS and none of them selected a socket,
    socket lookup continues to htable-based lookup.

Suggested-by: Marek Majkowski <marek@cloudflare.com>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200717103536.397595-5-jakub@cloudflare.com
3 years agoinet: Extract helper for selecting socket from reuseport group
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:24 +0000 (12:35 +0200)]
inet: Extract helper for selecting socket from reuseport group

Prepare for calling into reuseport from __inet_lookup_listener as well.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200717103536.397595-4-jakub@cloudflare.com
3 years agobpf: Introduce SK_LOOKUP program type with a dedicated attach point
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:23 +0000 (12:35 +0200)]
bpf: Introduce SK_LOOKUP program type with a dedicated attach point

Add a new program type BPF_PROG_TYPE_SK_LOOKUP with a dedicated attach type
BPF_SK_LOOKUP. The new program kind is to be invoked by the transport layer
when looking up a listening socket for a new connection request for
connection oriented protocols, or when looking up an unconnected socket for
a packet for connection-less protocols.

When called, SK_LOOKUP BPF program can select a socket that will receive
the packet. This serves as a mechanism to overcome the limits of what
bind() API allows to express. Two use-cases driving this work are:

 (1) steer packets destined to an IP range, on fixed port to a socket

     192.0.2.0/24, port 80 -> NGINX socket

 (2) steer packets destined to an IP address, on any port to a socket

     198.51.100.1, any port -> L7 proxy socket

In its run-time context program receives information about the packet that
triggered the socket lookup. Namely IP version, L4 protocol identifier, and
address 4-tuple. Context can be further extended to include ingress
interface identifier.

To select a socket BPF program fetches it from a map holding socket
references, like SOCKMAP or SOCKHASH, and calls bpf_sk_assign(ctx, sk, ...)
helper to record the selection. Transport layer then uses the selected
socket as a result of socket lookup.

In its basic form, SK_LOOKUP acts as a filter and hence must return either
SK_PASS or SK_DROP. If the program returns with SK_PASS, transport should
look for a socket to receive the packet, or use the one selected by the
program if available, while SK_DROP informs the transport layer that the
lookup should fail.

This patch only enables the user to attach an SK_LOOKUP program to a
network namespace. Subsequent patches hook it up to run on local delivery
path in ipv4 and ipv6 stacks.

Suggested-by: Marek Majkowski <marek@cloudflare.com>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200717103536.397595-3-jakub@cloudflare.com
3 years agobpf, netns: Handle multiple link attachments
Jakub Sitnicki [Fri, 17 Jul 2020 10:35:22 +0000 (12:35 +0200)]
bpf, netns: Handle multiple link attachments

Extend the BPF netns link callbacks to rebuild (grow/shrink) or update the
prog_array at given position when link gets attached/updated/released.

This let's us lift the limit of having just one link attached for the new
attach type introduced by subsequent patch.

No functional changes intended.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200717103536.397595-2-jakub@cloudflare.com
3 years agobpf: Drop duplicated words in uapi helper comments
Randy Dunlap [Thu, 16 Jul 2020 01:29:11 +0000 (18:29 -0700)]
bpf: Drop duplicated words in uapi helper comments

Drop doubled words "will" and "attach".

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/6b9f71ae-4f8e-0259-2c5d-187ddaefe6eb@infradead.org
3 years agoselftests/bpf: Fix possible hang in sockopt_inherit
Stanislav Fomichev [Wed, 15 Jul 2020 22:41:07 +0000 (15:41 -0700)]
selftests/bpf: Fix possible hang in sockopt_inherit

Andrii reported that sockopt_inherit occasionally hangs up on 5.5 kernel [0].
This can happen if server_thread runs faster than the main thread.
In that case, pthread_cond_wait will wait forever because
pthread_cond_signal was executed before the main thread was blocking.
Let's move pthread_mutex_lock up a bit to make sure server_thread
runs strictly after the main thread goes to sleep.

(Not sure why this is 5.5 specific, maybe scheduling is less
deterministic? But I was able to confirm that it does indeed
happen in a VM.)

[0] https://lore.kernel.org/bpf/CAEf4BzY0-bVNHmCkMFPgObs=isUAyg-dFzGDY7QWYkmm7rmTSg@mail.gmail.com/

Reported-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200715224107.3591967-1-sdf@google.com
3 years agobpf: revert "test_bpf: Flag tests that cannot be jited on s390"
Seth Forshee [Thu, 16 Jul 2020 14:39:31 +0000 (09:39 -0500)]
bpf: revert "test_bpf: Flag tests that cannot be jited on s390"

This reverts commit 3203c9010060 ("test_bpf: flag tests that cannot
be jited on s390").

The s390 bpf JIT previously had a restriction on the maximum program
size, which required some tests in test_bpf to be flagged as expected
failures. The program size limitation has been removed, and the tests
now pass, so these tests should no longer be flagged.

Fixes: d1242b10ff03 ("s390/bpf: Remove JITed image size limitations")
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/bpf/20200716143931.330122-1-seth.forshee@canonical.com
3 years agoselftest: Add tests for XDP programs in CPUMAP entries
Lorenzo Bianconi [Tue, 14 Jul 2020 13:56:42 +0000 (15:56 +0200)]
selftest: Add tests for XDP programs in CPUMAP entries

Similar to what have been done for DEVMAP, introduce tests to verify
ability to add a XDP program to an entry in a CPUMAP.
Verify CPUMAP programs can not be attached to devices as a normal
XDP program, and only programs with BPF_XDP_CPUMAP attach type can
be loaded in a CPUMAP.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/9c632fcea5382ea7b4578bd06b6eddf382c3550b.1594734381.git.lorenzo@kernel.org
3 years agosamples/bpf: xdp_redirect_cpu: Load a eBPF program on cpumap
Lorenzo Bianconi [Tue, 14 Jul 2020 13:56:41 +0000 (15:56 +0200)]
samples/bpf: xdp_redirect_cpu: Load a eBPF program on cpumap

Extend xdp_redirect_cpu_{usr,kern}.c adding the possibility to load
a XDP program on cpumap entries. The following options have been added:
- mprog-name: cpumap entry program name
- mprog-filename: cpumap entry program filename
- redirect-device: output interface if the cpumap program performs a
  XDP_REDIRECT to an egress interface
- redirect-map: bpf map used to perform XDP_REDIRECT to an egress
  interface
- mprog-disable: disable loading XDP program on cpumap entries

Add xdp_pass, xdp_drop, xdp_redirect stats accounting

Co-developed-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/aa5a9a281b9dac425620fdabe82670ffb6bbdb92.1594734381.git.lorenzo@kernel.org
3 years agolibbpf: Add SEC name for xdp programs attached to CPUMAP
Lorenzo Bianconi [Tue, 14 Jul 2020 13:56:40 +0000 (15:56 +0200)]
libbpf: Add SEC name for xdp programs attached to CPUMAP

As for DEVMAP, support SEC("xdp_cpumap/") as a short cut for loading
the program with type BPF_PROG_TYPE_XDP and expected attach type
BPF_XDP_CPUMAP.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/33174c41993a6d860d9c7c1f280a2477ee39ed11.1594734381.git.lorenzo@kernel.org
3 years agobpf: cpumap: Implement XDP_REDIRECT for eBPF programs attached to map entries
Lorenzo Bianconi [Tue, 14 Jul 2020 13:56:39 +0000 (15:56 +0200)]
bpf: cpumap: Implement XDP_REDIRECT for eBPF programs attached to map entries

Introduce XDP_REDIRECT support for eBPF programs attached to cpumap
entries.
This patch has been tested on Marvell ESPRESSObin using a modified
version of xdp_redirect_cpu sample in order to attach a XDP program
to CPUMAP entries to perform a redirect on the mvneta interface.
In particular the following scenario has been tested:

rq (cpu0) --> mvneta - XDP_REDIRECT (cpu0) --> CPUMAP - XDP_REDIRECT (cpu1) --> mvneta

$./xdp_redirect_cpu -p xdp_cpu_map0 -d eth0 -c 1 -e xdp_redirect \
-f xdp_redirect_kern.o -m tx_port -r eth0

tx: 285.2 Kpps rx: 285.2 Kpps

Attaching a simple XDP program on eth0 to perform XDP_TX gives
comparable results:

tx: 288.4 Kpps rx: 288.4 Kpps

Co-developed-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/bpf/2cf8373a731867af302b00c4ff16c122630c4980.1594734381.git.lorenzo@kernel.org
3 years agobpf: cpumap: Add the possibility to attach an eBPF program to cpumap
Lorenzo Bianconi [Tue, 14 Jul 2020 13:56:38 +0000 (15:56 +0200)]
bpf: cpumap: Add the possibility to attach an eBPF program to cpumap

Introduce the capability to attach an eBPF program to cpumap entries.
The idea behind this feature is to add the possibility to define on
which CPU run the eBPF program if the underlying hw does not support
RSS. Current supported verdicts are XDP_DROP and XDP_PASS.

This patch has been tested on Marvell ESPRESSObin using xdp_redirect_cpu
sample available in the kernel tree to identify possible performance
regressions. Results show there are no observable differences in
packet-per-second:

$./xdp_redirect_cpu --progname xdp_cpu_map0 --dev eth0 --cpu 1
rx: 354.8 Kpps
rx: 356.0 Kpps
rx: 356.8 Kpps
rx: 356.3 Kpps
rx: 356.6 Kpps
rx: 356.6 Kpps
rx: 356.7 Kpps
rx: 355.8 Kpps
rx: 356.8 Kpps
rx: 356.8 Kpps

Co-developed-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/bpf/5c9febdf903d810b3415732e5cd98491d7d9067a.1594734381.git.lorenzo@kernel.org
3 years agocpumap: Formalize map value as a named struct
Lorenzo Bianconi [Tue, 14 Jul 2020 13:56:37 +0000 (15:56 +0200)]
cpumap: Formalize map value as a named struct

As it has been already done for devmap, introduce 'struct bpf_cpumap_val'
to formalize the expected values that can be passed in for a CPUMAP.
Update cpumap code to use the struct.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/bpf/754f950674665dae6139c061d28c1d982aaf4170.1594734381.git.lorenzo@kernel.org
3 years agosamples/bpf: xdp_redirect_cpu_user: Do not update bpf maps in option loop
Lorenzo Bianconi [Tue, 14 Jul 2020 13:56:36 +0000 (15:56 +0200)]
samples/bpf: xdp_redirect_cpu_user: Do not update bpf maps in option loop

Do not update xdp_redirect_cpu maps running while option loop but
defer it after all available options have been parsed. This is a
preliminary patch to pass the program name we want to attach to the
map entries as a user option

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/bpf/95dc46286fd2c609042948e04bb7ae1f5b425538.1594734381.git.lorenzo@kernel.org
3 years agonet: Refactor xdp_convert_buff_to_frame
David Ahern [Tue, 14 Jul 2020 13:56:35 +0000 (15:56 +0200)]
net: Refactor xdp_convert_buff_to_frame

Move the guts of xdp_convert_buff_to_frame to a new helper,
xdp_update_frame_from_buff so it can be reused removing code duplication

Suggested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/bpf/90a68c283d7ebeb48924934c9b7ac79492300472.1594734381.git.lorenzo@kernel.org
3 years agocpumap: Use non-locked version __ptr_ring_consume_batched
Jesper Dangaard Brouer [Tue, 14 Jul 2020 13:56:34 +0000 (15:56 +0200)]
cpumap: Use non-locked version __ptr_ring_consume_batched

Commit 77361825bb01 ("bpf: cpumap use ptr_ring_consume_batched") changed
away from using single frame ptr_ring dequeue (__ptr_ring_consume) to
consume a batched, but it uses a locked version, which as the comment
explain isn't needed.

Change to use the non-locked version __ptr_ring_consume_batched.

Fixes: 77361825bb01 ("bpf: cpumap use ptr_ring_consume_batched")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/a9c7d06f9a009e282209f0c8c7b2c5d9b9ad60b9.1594734381.git.lorenzo@kernel.org
3 years agonet: ipv6: drop duplicate word in comment
Randy Dunlap [Wed, 15 Jul 2020 16:42:46 +0000 (09:42 -0700)]
net: ipv6: drop duplicate word in comment

Drop the doubled word "by" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: sctp: drop duplicate words in comments
Randy Dunlap [Wed, 15 Jul 2020 16:42:45 +0000 (09:42 -0700)]
net: sctp: drop duplicate words in comments

Drop doubled words in several comments.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: ip6_fib.h: drop duplicate word in comment
Randy Dunlap [Wed, 15 Jul 2020 16:42:44 +0000 (09:42 -0700)]
net: ip6_fib.h: drop duplicate word in comment

Drop doubled word "the" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: dsa.h: drop duplicate word in comment
Randy Dunlap [Wed, 15 Jul 2020 16:42:43 +0000 (09:42 -0700)]
net: dsa.h: drop duplicate word in comment

Drop doubled word "to" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: caif: drop duplicate words in comments
Randy Dunlap [Wed, 15 Jul 2020 16:42:42 +0000 (09:42 -0700)]
net: caif: drop duplicate words in comments

Drop doubled words "or" and "the" in several comments.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: 9p: drop duplicate word in comment
Randy Dunlap [Wed, 15 Jul 2020 16:42:41 +0000 (09:42 -0700)]
net: 9p: drop duplicate word in comment

Drop doubled word "not" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: wimax: fix duplicate words in comments
Randy Dunlap [Wed, 15 Jul 2020 16:42:40 +0000 (09:42 -0700)]
net: wimax: fix duplicate words in comments

Drop doubled words in two comments.
Fix a spello/typo.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: skbuff.h: drop duplicate words in comments
Randy Dunlap [Wed, 15 Jul 2020 16:42:39 +0000 (09:42 -0700)]
net: skbuff.h: drop duplicate words in comments

Drop doubled words in several comments.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: qed: drop duplicate words in comments
Randy Dunlap [Wed, 15 Jul 2020 16:42:38 +0000 (09:42 -0700)]
net: qed: drop duplicate words in comments

Drop doubled word "the" in two comments.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agodrivers: net: wan: Fix trivial spelling
Kieran Bingham [Wed, 15 Jul 2020 12:48:34 +0000 (13:48 +0100)]
drivers: net: wan: Fix trivial spelling

The word 'descriptor' is misspelled throughout the tree.

Fix it up accordingly:
    decriptor -> descriptor

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoMerge branch 'mlxsw-reg-add-policer-bandwidth-limits'
Jakub Kicinski [Thu, 16 Jul 2020 01:10:41 +0000 (18:10 -0700)]
Merge branch 'mlxsw-reg-add-policer-bandwidth-limits'

Ido Schimmel says:

====================
mlxsw: Offload tc police action

This patch set adds support for tc police action in mlxsw.

Patches #1-#2 add defines for policer bandwidth limits and resource
identifiers (e.g., maximum number of policers).

Patch #3 adds a common policer core in mlxsw. Currently it is only used
by the policy engine, but future patch sets will use it for trap
policers and storm control policers. The common core allows us to share
common logic between all policer types and abstract certain details from
the various users in mlxsw.

Patch #4 exposes the maximum number of supported policers and their
current usage to user space via devlink-resource. This provides better
visibility and also used for selftests purposes.

Patches #5-#7 gradually add support for tc police action in the policy
engine by calling into previously mentioned policer core.

Patch #8 adds a generic selftest for tc-police that can be used with
veth pairs or physical loopbacks.

Patches #9-#11 add mlxsw-specific selftests.
====================

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoselftests: mlxsw: Test policers' occupancy
Ido Schimmel [Wed, 15 Jul 2020 08:27:33 +0000 (11:27 +0300)]
selftests: mlxsw: Test policers' occupancy

Test that policers shared by different tc filters are correctly
reference counted by observing policers' occupancy via devlink-resource.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoselftests: mlxsw: Add scale test for tc-police
Ido Schimmel [Wed, 15 Jul 2020 08:27:32 +0000 (11:27 +0300)]
selftests: mlxsw: Add scale test for tc-police

Query the maximum number of supported policers using devlink-resource
and test that this number can be reached by configuring tc filters with
police action. Test that an error is returned in case the maximum number
is exceeded.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoselftests: mlxsw: tc_restrictions: Test tc-police restrictions
Ido Schimmel [Wed, 15 Jul 2020 08:27:31 +0000 (11:27 +0300)]
selftests: mlxsw: tc_restrictions: Test tc-police restrictions

Test that upper and lower limits on rate and burst size imposed by the
device are rejected by the kernel.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoselftests: forwarding: Add tc-police tests
Ido Schimmel [Wed, 15 Jul 2020 08:27:30 +0000 (11:27 +0300)]
selftests: forwarding: Add tc-police tests

Test tc-police action in various scenarios such as Rx policing, Tx
policing, shared policer and police piped to mirred. The test passes
with both veth pairs and loopbacked ports.

# ./tc_police.sh
TEST: police on rx                                                  [ OK ]
TEST: police on tx                                                  [ OK ]
TEST: police with shared policer - rx                               [ OK ]
TEST: police with shared policer - tx                               [ OK ]
TEST: police rx and mirror                                          [ OK ]
TEST: police tx and mirror                                          [ OK ]

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agomlxsw: spectrum_acl: Offload FLOW_ACTION_POLICE
Ido Schimmel [Wed, 15 Jul 2020 08:27:29 +0000 (11:27 +0300)]
mlxsw: spectrum_acl: Offload FLOW_ACTION_POLICE

Offload action police when used with a flower classifier. The number of
dropped packets is read from the policer and reported to tc.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agomlxsw: core_acl_flex_actions: Add police action
Ido Schimmel [Wed, 15 Jul 2020 08:27:28 +0000 (11:27 +0300)]
mlxsw: core_acl_flex_actions: Add police action

Add core functionality required to support police action in the policy
engine.

The utilized hardware policers are stored in a hash table keyed by the
flow action index. This allows to support policer sharing between
multiple ACL rules.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agomlxsw: core_acl_flex_actions: Work around hardware limitation
Ido Schimmel [Wed, 15 Jul 2020 08:27:27 +0000 (11:27 +0300)]
mlxsw: core_acl_flex_actions: Work around hardware limitation

In the policy engine, each ACL rule points to an action block where the
ACL actions are stored. Each action block consists of one or more action
sets. Each action set holds one or more individual actions, up to a
maximum queried from the device. For example:

                        Action set #1               Action set #2

+----------+          +--------------+            +--------------+
| ACL rule +---------->  Action #1   |      +----->  Action #4   |
+----------+          +--------------+      |     +--------------+
                      |  Action #2   |      |     |  Action #5   |
                      +--------------+      |     +--------------+
                      |  Action #3   +------+     |              |
                      +--------------+            +--------------+

                      <---------+ Action block +----------------->

The hardware has a limitation that prevents a policing action
(MLXSW_AFA_POLCNT_CODE when used with a policer, not a counter) from
being configured in the same action set with a trap action (i.e.,
MLXSW_AFA_TRAP_CODE or MLXSW_AFA_TRAPWU_CODE). Note that the latter used
to implement multiple actions: 'trap', 'mirred', 'drop'.

Work around this limitation by teaching mlxsw_afa_block_append_action()
to create a new action set not only when there is no more room left in
the current set, but also when there is a conflict between previously
mentioned actions.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agomlxsw: spectrum_policer: Add devlink resource support
Ido Schimmel [Wed, 15 Jul 2020 08:27:26 +0000 (11:27 +0300)]
mlxsw: spectrum_policer: Add devlink resource support

Expose via devlink-resource the maximum number of single-rate policers
and their current occupancy. Example:

$ devlink resource show pci/0000:01:00.0
...
  name global_policers size 1000 unit entry dpipe_tables none
    resources:
      name single_rate_policers size 968 occ 0 unit entry dpipe_tables none

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agomlxsw: spectrum_policer: Add policer core
Ido Schimmel [Wed, 15 Jul 2020 08:27:25 +0000 (11:27 +0300)]
mlxsw: spectrum_policer: Add policer core

Add common code to handle all policer-related functionality in mlxsw.
Currently, only policer for policy engines are supported, but it in the
future more policer families will be added such as CPU (trap) policers
and storm control policers.

The API allows different modules to add / delete policers and read their
drop counter.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agomlxsw: resources: Add resource identifier for global policers
Ido Schimmel [Wed, 15 Jul 2020 08:27:24 +0000 (11:27 +0300)]
mlxsw: resources: Add resource identifier for global policers

Add a resource identifier for maximum global policers so that it could
be later used to query the information from firmware.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agomlxsw: reg: Add policer bandwidth limits
Ido Schimmel [Wed, 15 Jul 2020 08:27:23 +0000 (11:27 +0300)]
mlxsw: reg: Add policer bandwidth limits

Add policer bandwidth limits for both rate and burst size so that they
could be enforced by a later patch.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agohinic: add firmware update support
Luo bin [Wed, 15 Jul 2020 07:30:23 +0000 (15:30 +0800)]
hinic: add firmware update support

add support to update firmware by the devlink flashing API

Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agodecnet: dn_dev: Remove an unnecessary label.
Suraj Upadhyay [Tue, 14 Jul 2020 14:23:28 +0000 (19:53 +0530)]
decnet: dn_dev: Remove an unnecessary label.

Remove the unnecessary label from dn_dev_ioctl() and make its error
handling simpler to read.

Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agodocs: networking: timestamping: add section for stacked PHC devices
Vladimir Oltean [Thu, 9 Jul 2020 20:17:33 +0000 (23:17 +0300)]
docs: networking: timestamping: add section for stacked PHC devices

The concept of timestamping DSA switches / Ethernet PHYs is becoming
more and more popular, however the Linux kernel timestamping code has
evolved quite organically and there's layers upon layers of new and old
code that need to work together for things to behave as expected.

Add this chapter to explain what the overall goals are.

Loosely based upon this email discussion plus some more info:
https://lkml.org/lkml/2020/7/6/481

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: sundance: Replace HTTP links with HTTPS ones
Alexander A. Klimov [Thu, 9 Jul 2020 20:49:25 +0000 (22:49 +0200)]
net: sundance: Replace HTTP links with HTTPS ones

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonetpoll: Remove unused inline function netpoll_netdev_init()
YueHaibing [Wed, 15 Jul 2020 02:52:03 +0000 (10:52 +0800)]
netpoll: Remove unused inline function netpoll_netdev_init()

commit d565b0a1a9b6 ("net: Add Generic Receive Offload infrastructure")
left behind this, remove it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: Remove unused inline function mptcp_rcv_synsent()
YueHaibing [Wed, 15 Jul 2020 02:36:13 +0000 (10:36 +0800)]
mptcp: Remove unused inline function mptcp_rcv_synsent()

commit 263e1201a2c3 ("mptcp: consolidate synack processing.")
left behind this, remove it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: flow: Remove unused inline function
YueHaibing [Wed, 15 Jul 2020 02:31:19 +0000 (10:31 +0800)]
net: flow: Remove unused inline function

It is not used since commit 09c7570480f7 ("xfrm: remove flow cache")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agocipso: Remove unused inline functions
YueHaibing [Wed, 15 Jul 2020 02:18:46 +0000 (10:18 +0800)]
cipso: Remove unused inline functions

They are not used any more since commit b1edeb102397 ("netlabel: Replace
protocol/NetLabel linking with refrerence counts")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'udp_tunnel-NIC-RX-port-offload-infrastructure'
David S. Miller [Wed, 15 Jul 2020 00:04:28 +0000 (17:04 -0700)]
Merge branch 'udp_tunnel-NIC-RX-port-offload-infrastructure'

Jakub Kicinski says:

====================
udp_tunnel: NIC RX port offload infrastructure

This set of patches converts further drivers to use the new
infrastructure to UDP tunnel port offload merged in
commit 0ea460474d70 ("Merge branch 'udp_tunnel-add-NIC-RX-port-offload-infrastructure'").

v3:
 - fix a W=1 build warning in qede.
v2:
 - fix a W=1 build warning in xgbe,
 - expand the size of tables for lio.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoqlcnic: convert to new udp_tunnel_nic infra
Jakub Kicinski [Tue, 14 Jul 2020 19:18:30 +0000 (12:18 -0700)]
qlcnic: convert to new udp_tunnel_nic infra

Straightforward conversion to new infra, 1 VxLAN port, handler
may sleep.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoqede: convert to new udp_tunnel_nic infra
Jakub Kicinski [Tue, 14 Jul 2020 19:18:29 +0000 (12:18 -0700)]
qede: convert to new udp_tunnel_nic infra

Covert to new infra. Looks like this driver was not doing
ref counting, and sleeping in the callback.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agofm10k: convert to new udp_tunnel_nic infra
Jakub Kicinski [Tue, 14 Jul 2020 19:18:28 +0000 (12:18 -0700)]
fm10k: convert to new udp_tunnel_nic infra

Straightforward conversion to new infra. Driver restores info
after close/open cycle by calling its internal restore function
so just use that, no need for udp_tunnel_nic_reset_ntf() here.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoliquidio_vf: convert to new udp_tunnel_nic infra
Jakub Kicinski [Tue, 14 Jul 2020 19:18:27 +0000 (12:18 -0700)]
liquidio_vf: convert to new udp_tunnel_nic infra

Carbon copy of the previous change.

This driver is just a super thin FW interface, but Derek let us
know the table has 1024 entries.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoliquidio: convert to new udp_tunnel_nic infra
Jakub Kicinski [Tue, 14 Jul 2020 19:18:26 +0000 (12:18 -0700)]
liquidio: convert to new udp_tunnel_nic infra

This driver is just a super thin FW interface, but Derek let us
know the table has 1024 entries.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoenic: convert to new udp_tunnel_nic infra
Jakub Kicinski [Tue, 14 Jul 2020 19:18:25 +0000 (12:18 -0700)]
enic: convert to new udp_tunnel_nic infra

Convert to new infra, now the refcounting will be correct,
and driver gets port replay of other ports when offloaded
port gets removed.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agocxgb4: convert to new udp_tunnel_nic infra
Jakub Kicinski [Tue, 14 Jul 2020 19:18:24 +0000 (12:18 -0700)]
cxgb4: convert to new udp_tunnel_nic infra

Convert to new infra, this driver is very simple. The check of
adapter->rawf_cnt in cxgb_udp_tunnel_unset_port() is kept from
the old port deletion function but it's dodgy since nothing ever
updates that member once its set during init. Also .set_port
callback always adds the raw mac filter..

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agobnx2x: convert to new udp_tunnel_nic infra
Jakub Kicinski [Tue, 14 Jul 2020 19:18:23 +0000 (12:18 -0700)]
bnx2x: convert to new udp_tunnel_nic infra

Fairly straightforward conversion - no need to keep track
of the use count, and replay when ports get removed, also
callbacks can just sleep.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoxgbe: convert to new udp_tunnel_nic infra
Jakub Kicinski [Tue, 14 Jul 2020 19:18:22 +0000 (12:18 -0700)]
xgbe: convert to new udp_tunnel_nic infra

Make use of the new udp_tunnel_nic infra. Don't clear the features
when VxLAN port is not present to make all drivers behave the same.
Driver will now (until we address the problem in the core) leave
the RX UDP tunnel feature always on, since this is what most drivers
do.

Remove the list of VxLAN ports, just program the one core told us to.

The driver seem to want to clear the VxLAN ports on close but it
doesn't seem to flush the port list properly so it'd get wrong
use counts after close/open. Again since it calls its own open
handler we need the reset notification hack.

v2:
 - fix kbuild warning

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoxgbe: switch to more generic VxLAN detection
Jakub Kicinski [Tue, 14 Jul 2020 19:18:21 +0000 (12:18 -0700)]
xgbe: switch to more generic VxLAN detection

Instead of looping though the list of ports just check
if the geometry of the packet is correct for VxLAN.
HW most likely doesn't care about the exact port, anyway,
since only first port is actually offloaded, and this way
we won't have to maintain the port list at all.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agobe2net: convert to new udp_tunnel_nic infra
Jakub Kicinski [Tue, 14 Jul 2020 19:18:20 +0000 (12:18 -0700)]
be2net: convert to new udp_tunnel_nic infra

Convert be2net to new udp_tunnel_nic infra. NIC only takes one VxLAN
port. Remove the port tracking using a list. The warning in
be_work_del_vxlan_port() looked suspicious - like the driver expected
ports to be removed in order of addition.

be2net unregisters ports when going down and re-registers them (for
skyhawk) when coming up, but it never checks if the device is up
in the add_port / del_port callbacks. Make it use
UDP_TUNNEL_NIC_INFO_OPEN_ONLY. Sadly this driver calls its own
open/close functions directly so the udp_tunnel_nic_reset_ntf()
workaround is needed.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonfp: convert to new udp_tunnel_nic infra
Jakub Kicinski [Tue, 14 Jul 2020 19:18:19 +0000 (12:18 -0700)]
nfp: convert to new udp_tunnel_nic infra

NFP conversion is pretty straightforward. We want to be able
to sleep, and only get callbacks when the device is open.

NFP did not ask for port replay when ports were removed, now
new infra will provide this feature for free.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
David S. Miller [Wed, 15 Jul 2020 00:00:52 +0000 (17:00 -0700)]
Merge git://git./linux/kernel/git/bpf/bpf-next

Alexei Starovoitov says:

====================
pull-request: bpf-next 2020-07-14

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

We've added 21 non-merge commits during the last 1 day(s) which contain
a total of 20 files changed, 308 insertions(+), 279 deletions(-).

The main changes are:

1) Fix selftests/bpf build, from Alexei.

2) Fix resolve_btfids build issues, from Jiri.

3) Pull usermode-driver-cleanup set, from Eric.

4) Two minor fixes to bpfilter, from Alexei and Masahiro.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoksz884x: switch from 'pci_' to 'dma_' API
Christophe JAILLET [Tue, 14 Jul 2020 18:35:01 +0000 (20:35 +0200)]
ksz884x: switch from 'pci_' to 'dma_' API

The wrappers in include/linux/pci-dma-compat.h should go away.

The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.
It has been compile tested.

When memory is allocated in 'ksz_alloc_desc()', GFP_KERNEL can be used
because a few lines below, GFP_KERNEL is also used in the
'ksz_alloc_soft_desc()' calls.

@@
@@
-    PCI_DMA_BIDIRECTIONAL
+    DMA_BIDIRECTIONAL

@@
@@
-    PCI_DMA_TODEVICE
+    DMA_TO_DEVICE

@@
@@
-    PCI_DMA_FROMDEVICE
+    DMA_FROM_DEVICE

@@
@@
-    PCI_DMA_NONE
+    DMA_NONE

@@
expression e1, e2, e3;
@@
-    pci_alloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3;
@@
-    pci_zalloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3, e4;
@@
-    pci_free_consistent(e1, e2, e3, e4)
+    dma_free_coherent(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_single(e1, e2, e3, e4)
+    dma_map_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_single(e1, e2, e3, e4)
+    dma_unmap_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4, e5;
@@
-    pci_map_page(e1, e2, e3, e4, e5)
+    dma_map_page(&e1->dev, e2, e3, e4, e5)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_page(e1, e2, e3, e4)
+    dma_unmap_page(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_sg(e1, e2, e3, e4)
+    dma_map_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_sg(e1, e2, e3, e4)
+    dma_unmap_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_device(e1, e2, e3, e4)
+    dma_sync_single_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2;
@@
-    pci_dma_mapping_error(e1, e2)
+    dma_mapping_error(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_dma_mask(e1, e2)
+    dma_set_mask(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_consistent_dma_mask(e1, e2)
+    dma_set_coherent_mask(&e1->dev, e2)

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'r8169-add-support-for-RTL8125B'
David S. Miller [Tue, 14 Jul 2020 22:07:17 +0000 (15:07 -0700)]
Merge branch 'r8169-add-support-for-RTL8125B'

Heiner Kallweit says:

====================
r8169: add support for RTL8125B

This series adds support for RTL8125B rev.b.
Tested with a Delock 89564 PCIe card.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agor8169: add support for RTL8125B
Heiner Kallweit [Tue, 14 Jul 2020 15:46:03 +0000 (17:46 +0200)]
r8169: add support for RTL8125B

Add support for RTL8125B rev.b. In my tests 2.5Gbps worked well
w/o firmware, however for a stable link at 1Gbps firmware revision
0.0.2 is needed.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: phy: realtek: add support for RTL8125B-internal PHY
Heiner Kallweit [Tue, 14 Jul 2020 15:45:03 +0000 (17:45 +0200)]
net: phy: realtek: add support for RTL8125B-internal PHY

Realtek assigned a new PHY ID for the RTL8125B-internal PHY.
It's however compatible with the RTL8125A-internal PHY.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 's390-qeth-next'
David S. Miller [Tue, 14 Jul 2020 21:53:45 +0000 (14:53 -0700)]
Merge branch 's390-qeth-next'

Julian Wiedmann says:

====================
s390/qeth: updates 2020-07-14

please apply the following patch series for qeth to netdev's net-next tree.

This brings a mix of cleanups for various parts of the control code.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agos390/qeth: constify the MPC initialization data
Julian Wiedmann [Tue, 14 Jul 2020 14:23:05 +0000 (16:23 +0200)]
s390/qeth: constify the MPC initialization data

We're not modifying these data blobs, so mark them as constant.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agos390/qeth: unify RX-mode hashtables
Julian Wiedmann [Tue, 14 Jul 2020 14:23:04 +0000 (16:23 +0200)]
s390/qeth: unify RX-mode hashtables

To keep track of the addresses programmed from an RX modeset, we have
two separate hashtables (L2: mac_htable, L3: ip_mc_htable).

These are never used at the same time, so unify them into a single
rx_mode_addrs hashtable.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agos390/qeth: cleanup OAT code
Julian Wiedmann [Tue, 14 Jul 2020 14:23:03 +0000 (16:23 +0200)]
s390/qeth: cleanup OAT code

While initially just trying to fix up the indentation, condense a few
lines and get rid of a goto label.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agos390/qeth: clean up a magic number in the OAT callback
Julian Wiedmann [Tue, 14 Jul 2020 14:23:02 +0000 (16:23 +0200)]
s390/qeth: clean up a magic number in the OAT callback

Use the correct struct member instead of hardcoding its offset.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agos390/qeth: use u64_to_user_ptr() in the OAT code
Julian Wiedmann [Tue, 14 Jul 2020 14:23:01 +0000 (16:23 +0200)]
s390/qeth: use u64_to_user_ptr() in the OAT code

Use the correct helper for casting to a user pointer.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agos390/qeth: clean up error handling for isolation mode cmds
Julian Wiedmann [Tue, 14 Jul 2020 14:23:00 +0000 (16:23 +0200)]
s390/qeth: clean up error handling for isolation mode cmds

As the cmd IO path has learned to propagate errnos back to its callers,
let them deal with errors instead of trying to restore their previous
configuration from within the IO error path.

Also translate the HW error to a meaningful errno, instead of returning
-EIO for all cases (and don't map this to -EOPNOTSUPP later on...).

While at it, add a READ_ONCE() / WRITE_ONCE() pair to ensure that the
data path always sees a valid isolation mode during reconfiguration.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agos390/qeth: don't clear the configured isolation mode
Julian Wiedmann [Tue, 14 Jul 2020 14:22:59 +0000 (16:22 +0200)]
s390/qeth: don't clear the configured isolation mode

When qeth_set_access_ctrl_online() is called during the device's
initialization and discovers that isolation mode isn't supported, don't
clear the user's currently configured mode.
They intentionally choose to operate the device in this specific mode,
and degrading the isolation is not an option.

Only adjust the configuration when called via sysfs (ie. fallback = 1),
and here follow the common pattern and restore it from prev_isolation.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agos390/qeth: only init the isolation mode when necessary
Julian Wiedmann [Tue, 14 Jul 2020 14:22:58 +0000 (16:22 +0200)]
s390/qeth: only init the isolation mode when necessary

A newly initialized device defaults to ISOLATION_MODE_NONE, don't bother
with programming this a second time.

Then remove the OSD/OSX check, it's already done in the sysfs path
whenever the user actually changes the configuration.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agos390/qeth: fine-tune errno when cmds are cancelled
Julian Wiedmann [Tue, 14 Jul 2020 14:22:57 +0000 (16:22 +0200)]
s390/qeth: fine-tune errno when cmds are cancelled

If we cancel all pending cmds (eg. when tearing down the device), don't
blame it on an IO error.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agos390/qeth: reject unsupported link type earlier
Julian Wiedmann [Tue, 14 Jul 2020 14:22:56 +0000 (16:22 +0200)]
s390/qeth: reject unsupported link type earlier

Rather than delaying the decision until netdev setup, immediately reject
a device when we discover that it has an unsupported link type
(ie. Token Ring).

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'mlxsw-Mirror-to-CPU-preparations'
David S. Miller [Tue, 14 Jul 2020 21:50:50 +0000 (14:50 -0700)]
Merge branch 'mlxsw-Mirror-to-CPU-preparations'

Ido Schimmel says:

====================
mlxsw: Mirror to CPU preparations

A future patch set will add the ability to trap packets that were
dropped due to buffer related reasons (e.g., early drop). Internally
this is implemented by mirroring these packets towards the CPU port.
This patch set adds the required infrastructure to enable such
mirroring.

Patches #1-#2 extend two registers needed for above mentioned
functionality.

Patches #3-#6 gradually add support for setting the mirroring target of
a SPAN (mirroring) agent as the CPU port. This is only supported from
Spectrum-2 onwards, so an error is returned for Spectrum-1.

Patches #7-#8 add the ability to set a policer on a SPAN agent. This is
required because unlike regularly trapped packets, a policer cannot be
set on the trap group with which the mirroring trap is associated.

Patches #9-#12 parse the mirror reason field from the Completion Queue
Element (CQE). Unlike other trapped packets, the trap identifier of
mirrored packets only indicates that the packet was mirrored, but not
why. The reason (e.g., tail drop) is encoded in the mirror reason field.

Patch #13 utilizes the mirror reason field in order to lookup the
matching Rx listener. This allows us to maintain the abstraction that an
Rx listener is mapped to a single trap reason. Without taking the mirror
reason into account we would need to register a single Rx listener for
all mirrored packets.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: core: Use mirror reason during Rx listener lookup
Ido Schimmel [Tue, 14 Jul 2020 14:21:06 +0000 (17:21 +0300)]
mlxsw: core: Use mirror reason during Rx listener lookup

The Rx listener abstraction allows the switch driver (e.g.,
mlxsw_spectrum) to register a function that is called when a packet is
received (trapped) for a specific reason.

Up until now, the Rx listener lookup was solely based on the trap
identifier. However, when a packet is mirrored to the CPU the trap
identifier merely indicates that the packet was mirrored, but not why it
was mirrored. This makes it impossible for the switch driver to register
different Rx listeners for different mirror reasons.

Solve this by allowing the switch driver to register a Rx listener with
a mirror reason and by extending the Rx listener lookup to take the
mirror reason into account.

Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: pci: Retrieve mirror reason from CQE during receive
Ido Schimmel [Tue, 14 Jul 2020 14:21:05 +0000 (17:21 +0300)]
mlxsw: pci: Retrieve mirror reason from CQE during receive

In case the mirror reason is valid, retrieve it into the Rx information
so that it could be used during listener lookup in a later patch.

Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: pci: Add mirror reason field to CQEv2
Ido Schimmel [Tue, 14 Jul 2020 14:21:04 +0000 (17:21 +0300)]
mlxsw: pci: Add mirror reason field to CQEv2

The Completion Queue Element version 2 (CQEv2) includes a field called
'mirror_reason' which indicates why the packet was mirrored to the CPU.

Add the field so that it can be used by a later patch.

Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: trap: Add trap identifiers for mirrored packets
Ido Schimmel [Tue, 14 Jul 2020 14:21:03 +0000 (17:21 +0300)]
mlxsw: trap: Add trap identifiers for mirrored packets

Packets that are mirrored to the CPU port are trapped with one of eight
trap identifiers. Add them.

Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: reg: Increase trap identifier to 10 bits
Amit Cohen [Tue, 14 Jul 2020 14:21:02 +0000 (17:21 +0300)]
mlxsw: reg: Increase trap identifier to 10 bits

The trap identifier was increased to 10 bits in new versions of the
Programmer's Reference Manual (PRM).

Increase it accordingly in the Host PacKet Trap (HPKT) register and in
the Completion Queue Element (CQE).

This is significant for subsequent patches that will introduce trap
identifiers which utilize the extended range.

Signed-off-by: Amit Cohen <amitc@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_span: Allow setting policer on a SPAN agent
Ido Schimmel [Tue, 14 Jul 2020 14:21:01 +0000 (17:21 +0300)]
mlxsw: spectrum_span: Allow setting policer on a SPAN agent

When mirroring packets to the CPU port the mirrored packets are trapped
to the CPU. However, unlike other traps, it is not possible to set a
policer on the associated trap group. Instead, the policer needs to be
set on the SPAN agent.

Moreover, the policer ID must be within a specified range: From a
configurable (even) base ID to this base plus the maximum number of SPAN
agents.

While the immediate use case is to set the policer on a SPAN agent that
mirrors to the CPU port, a policer can be set on any SPAN agent.
Therefore, the operation is implemented for all SPAN agent types.

Extend the SPAN agent request API to allow passing the desired policer
ID that should be bound to the SPAN agent. Return an error for
Spectrum-1, as it does not support policer setting on a SPAN agent.

Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_span: Allow passing parameters to SPAN agents
Ido Schimmel [Tue, 14 Jul 2020 14:21:00 +0000 (17:21 +0300)]
mlxsw: spectrum_span: Allow passing parameters to SPAN agents

Currently, the only parameter of a SPAN agent is the netdev which
the SPAN agent should mirror to.

The next patch will add the ability to request a SPAN agent that mirrors
to a specific netdev and has a specific policer ID bound to it. This is
required when mirroring packets to the CPU port.

Therefore, encapsulate the sole parameter to mlxsw_sp_span_agent_get()
in a structure, so that it could later be extended with policer
information.

Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_span: Add support for mirroring towards CPU port
Ido Schimmel [Tue, 14 Jul 2020 14:20:59 +0000 (17:20 +0300)]
mlxsw: spectrum_span: Add support for mirroring towards CPU port

The Spectrum-2 and Spectrum-3 ASICs are able to mirror packets towards
the CPU. These packets are then trapped like any other packet, but with
a special packet trap and additional metadata such as why the packet was
mirrored.

The ability to mirror packets towards the CPU will be utilized by a
subsequent patch set that will mirror packets that were dropped by the
ASIC for various buffer-related reasons, such as tail-drop and
early-drop.

Add mirroring towards the CPU as a new SPAN agent type and re-use the
functions that mirror to a physical port where possible.

Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_span: Do not dereference destination netdev
Ido Schimmel [Tue, 14 Jul 2020 14:20:58 +0000 (17:20 +0300)]
mlxsw: spectrum_span: Do not dereference destination netdev

Currently, the destination netdev to which we mirror must be a valid
netdev. However, this is going to change with the introduction of
mirroring towards the CPU port, as the CPU port does not have a backing
netdev.

Avoid dereferencing the destination netdev when it is not clear if it is
valid or not.

Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_span: Add driver private info to parms_set() callback
Ido Schimmel [Tue, 14 Jul 2020 14:20:57 +0000 (17:20 +0300)]
mlxsw: spectrum_span: Add driver private info to parms_set() callback

The parms_set() callback is supposed to fill in the parameters for the
SPAN agent, such as the destination port and encapsulation info, if any.

When mirroring to the CPU port we cannot resolve the destination port
(the CPU port) without access to the driver private info.

Pass the driver private info to parms_set() callback so that it could be
used later on to resolve the CPU port.

Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_span: Add per-ASIC SPAN agent operations
Ido Schimmel [Tue, 14 Jul 2020 14:20:56 +0000 (17:20 +0300)]
mlxsw: spectrum_span: Add per-ASIC SPAN agent operations

The various SPAN agent types differ in their mirror targets (i.e.,
physical port netdev vs. VLAN netdev) and the encapsulation headers that
they need to encapsulate the mirrored packets with.

The Spectrum-2 and Spectrum-3 ASICs support a SPAN agent type that is
able to mirror towards the CPU, whereas the Spectrum-1 ASIC does not.

Prepare for the addition of this new SPAN agent type by splitting the
SPAN agent operations to be per-ASIC.

Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: reg: add mirroring_pid_base to MOGCR register
Amit Cohen [Tue, 14 Jul 2020 14:20:55 +0000 (17:20 +0300)]
mlxsw: reg: add mirroring_pid_base to MOGCR register

Allow setting mirroring_pid_base using MOGCR register.

Signed-off-by: Amit Cohen <amitc@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: reg: Add session_id and pid to MPAT register
Amit Cohen [Tue, 14 Jul 2020 14:20:54 +0000 (17:20 +0300)]
mlxsw: reg: Add session_id and pid to MPAT register

Allow setting session_id and pid as part of port analyzer
configurations.

Signed-off-by: Amit Cohen <amitc@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: neterion: vxge: switch from 'pci_' to 'dma_' API
Christophe JAILLET [Tue, 14 Jul 2020 09:14:12 +0000 (11:14 +0200)]
net: neterion: vxge: switch from 'pci_' to 'dma_' API

The wrappers in include/linux/pci-dma-compat.h should go away.

The patch has been generated with the coccinelle script below. No GFP_
flag needs to be corrected.
It has been compile tested.

@@
@@
-    PCI_DMA_BIDIRECTIONAL
+    DMA_BIDIRECTIONAL

@@
@@
-    PCI_DMA_TODEVICE
+    DMA_TO_DEVICE

@@
@@
-    PCI_DMA_FROMDEVICE
+    DMA_FROM_DEVICE

@@
@@
-    PCI_DMA_NONE
+    DMA_NONE

@@
expression e1, e2, e3;
@@
-    pci_alloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3;
@@
-    pci_zalloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3, e4;
@@
-    pci_free_consistent(e1, e2, e3, e4)
+    dma_free_coherent(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_single(e1, e2, e3, e4)
+    dma_map_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_single(e1, e2, e3, e4)
+    dma_unmap_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4, e5;
@@
-    pci_map_page(e1, e2, e3, e4, e5)
+    dma_map_page(&e1->dev, e2, e3, e4, e5)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_page(e1, e2, e3, e4)
+    dma_unmap_page(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_sg(e1, e2, e3, e4)
+    dma_map_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_sg(e1, e2, e3, e4)
+    dma_unmap_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_device(e1, e2, e3, e4)
+    dma_sync_single_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2;
@@
-    pci_dma_mapping_error(e1, e2)
+    dma_mapping_error(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_dma_mask(e1, e2)
+    dma_set_mask(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_consistent_dma_mask(e1, e2)
+    dma_set_coherent_mask(&e1->dev, e2)

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>