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2020-04-29libbpf: Add BTF-defined map-in-map supportAndrii Nakryiko4-23/+384
As discussed at LPC 2019 ([0]), this patch brings (a quite belated) support for declarative BTF-defined map-in-map support in libbpf. It allows to define ARRAY_OF_MAPS and HASH_OF_MAPS BPF maps without any user-space initialization code involved. Additionally, it allows to initialize outer map's slots with references to respective inner maps at load time, also completely declaratively. Despite a weak type system of C, the way BTF-defined map-in-map definition works, it's actually quite hard to accidentally initialize outer map with incompatible inner maps. This being C, of course, it's still possible, but even that would be caught at load time and error returned with helpful debug log pointing exactly to the slot that failed to be initialized. As an example, here's a rather advanced HASH_OF_MAPS declaration and initialization example, filling slots #0 and #4 with two inner maps: #include <bpf/bpf_helpers.h> struct inner_map { __uint(type, BPF_MAP_TYPE_ARRAY); __uint(max_entries, 1); __type(key, int); __type(value, int); } inner_map1 SEC(".maps"), inner_map2 SEC(".maps"); struct outer_hash { __uint(type, BPF_MAP_TYPE_HASH_OF_MAPS); __uint(max_entries, 5); __uint(key_size, sizeof(int)); __array(values, struct inner_map); } outer_hash SEC(".maps") = { .values = { [0] = &inner_map2, [4] = &inner_map1, }, }; Here's the relevant part of libbpf debug log showing pretty clearly of what's going on with map-in-map initialization: libbpf: .maps relo #0: for 6 value 0 rel.r_offset 96 name 260 ('inner_map1') libbpf: .maps relo #0: map 'outer_arr' slot [0] points to map 'inner_map1' libbpf: .maps relo #1: for 7 value 32 rel.r_offset 112 name 249 ('inner_map2') libbpf: .maps relo #1: map 'outer_arr' slot [2] points to map 'inner_map2' libbpf: .maps relo #2: for 7 value 32 rel.r_offset 144 name 249 ('inner_map2') libbpf: .maps relo #2: map 'outer_hash' slot [0] points to map 'inner_map2' libbpf: .maps relo #3: for 6 value 0 rel.r_offset 176 name 260 ('inner_map1') libbpf: .maps relo #3: map 'outer_hash' slot [4] points to map 'inner_map1' libbpf: map 'inner_map1': created successfully, fd=4 libbpf: map 'inner_map2': created successfully, fd=5 libbpf: map 'outer_hash': created successfully, fd=7 libbpf: map 'outer_hash': slot [0] set to map 'inner_map2' fd=5 libbpf: map 'outer_hash': slot [4] set to map 'inner_map1' fd=4 Notice from the log above that fd=6 (not logged explicitly) is used for inner "prototype" map, necessary for creation of outer map. It is destroyed immediately after outer map is created. See also included selftest with some extra comments explaining extra details of usage. Additionally, similar initialization syntax and libbpf functionality can be used to do initialization of BPF_PROG_ARRAY with references to BPF sub-programs. This can be done in follow up patches, if there will be a demand for this. [0] https://linuxplumbersconf.org/event/4/contributions/448/ Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/bpf/20200429002739.48006-4-andriin@fb.com
2020-04-29libbpf: Refactor map creation logic and fix cleanup leakAndrii Nakryiko1-105/+121
Factor out map creation and destruction logic to simplify code and especially error handling. Also fix map FD leak in case of partially successful map creation during bpf_object load operation. Fixes: 57a00f41644f ("libbpf: Add auto-pinning of maps when loading BPF objects") Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/bpf/20200429002739.48006-3-andriin@fb.com
2020-04-29libbpf: Refactor BTF-defined map definition parsing logicAndrii Nakryiko1-92/+103
Factor out BTF map definition logic into stand-alone routine for easier reuse for map-in-map case. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200429002739.48006-2-andriin@fb.com
2020-04-29Merge branch 'bpf_link-observability'Alexei Starovoitov22-184/+1132
Andrii Nakryiko says: ==================== This patch series adds various observability APIs to bpf_link: - each bpf_link now gets ID, similar to bpf_map and bpf_prog, by which user-space can iterate over all existing bpf_links and create limited FD from ID; - allows to get extra object information with bpf_link general and type-specific information; - implements `bpf link show` command which lists all active bpf_links in the system; - implements `bpf link pin` allowing to pin bpf_link by ID or from other pinned path. v2->v3: - improve spin locking around bpf_link ID (Alexei); - simplify bpf_link_info handling and fix compilation error on sh arch; v1->v2: - simplified `bpftool link show` implementation (Quentin); - fixed formatting of bpftool-link.rst (Quentin); - fixed attach type printing logic (Quentin); rfc->v1: - dropped read-only bpf_links (Alexei); - fixed bug in bpf_link_cleanup() not removing ID; - fixed bpftool link pinning search logic; - added bash-completion and man page. ==================== Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-04-29bpftool: Add link bash completionsAndrii Nakryiko1-0/+39
Extend bpftool's bash-completion script to handle new link command and its sub-commands. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20200429001614.1544-11-andriin@fb.com
2020-04-29bpftool: Add bpftool-link manpageAndrii Nakryiko1-0/+118
Add bpftool-link manpage with information and examples of link-related commands. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20200429001614.1544-10-andriin@fb.com
2020-04-29bpftool: Add bpf_link show and pin supportAndrii Nakryiko4-1/+345
Add `bpftool link show` and `bpftool link pin` commands. Example plain output for `link show` (with showing pinned paths): [vmuser@archvm bpf]$ sudo ~/local/linux/tools/bpf/bpftool/bpftool -f link 1: tracing prog 12 prog_type tracing attach_type fentry pinned /sys/fs/bpf/my_test_link pinned /sys/fs/bpf/my_test_link2 2: tracing prog 13 prog_type tracing attach_type fentry 3: tracing prog 14 prog_type tracing attach_type fentry 4: tracing prog 15 prog_type tracing attach_type fentry 5: tracing prog 16 prog_type tracing attach_type fentry 6: tracing prog 17 prog_type tracing attach_type fentry 7: raw_tracepoint prog 21 tp 'sys_enter' 8: cgroup prog 25 cgroup_id 584 attach_type egress 9: cgroup prog 25 cgroup_id 599 attach_type egress 10: cgroup prog 25 cgroup_id 614 attach_type egress 11: cgroup prog 25 cgroup_id 629 attach_type egress Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20200429001614.1544-9-andriin@fb.com
2020-04-29bpftool: Expose attach_type-to-string array to non-cgroup codeAndrii Nakryiko2-33/+47
Move attach_type_strings into main.h for access in non-cgroup code. bpf_attach_type is used for non-cgroup attach types quite widely now. So also complete missing string translations for non-cgroup attach types. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20200429001614.1544-8-andriin@fb.com
2020-04-29selftests/bpf: Test bpf_link's get_next_id, get_fd_by_id, and get_obj_infoAndrii Nakryiko2-20/+104
Extend bpf_obj_id selftest to verify bpf_link's observability APIs. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200429001614.1544-7-andriin@fb.com
2020-04-29libbpf: Add low-level APIs for new bpf_link commandsAndrii Nakryiko3-3/+26
Add low-level API calls for bpf_link_get_next_id() and bpf_link_get_fd_by_id(). Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200429001614.1544-6-andriin@fb.com
2020-04-29bpf: Add support for BPF_OBJ_GET_INFO_BY_FD for bpf_linkAndrii Nakryiko9-24/+253
Add ability to fetch bpf_link details through BPF_OBJ_GET_INFO_BY_FD command. Also enhance show_fdinfo to potentially include bpf_link type-specific information (similarly to obj_info). Also introduce enum bpf_link_type stored in bpf_link itself and expose it in UAPI. bpf_link_tracing also now will store and return bpf_attach_type. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200429001614.1544-5-andriin@fb.com
2020-04-29bpf: Support GET_FD_BY_ID and GET_NEXT_ID for bpf_linkAndrii Nakryiko2-0/+51
Add support to look up bpf_link by ID and iterate over all existing bpf_links in the system. GET_FD_BY_ID code handles not-yet-ready bpf_link by checking that its ID hasn't been set to non-zero value yet. Setting bpf_link's ID is done as the very last step in finalizing bpf_link, together with installing FD. This approach allows users of bpf_link in kernel code to not worry about races between user-space and kernel code that hasn't finished attaching and initializing bpf_link. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200429001614.1544-4-andriin@fb.com
2020-04-29bpf: Allocate ID for bpf_linkAndrii Nakryiko4-57/+118
Generate ID for each bpf_link using IDR, similarly to bpf_map and bpf_prog. bpf_link creation, initialization, attachment, and exposing to user-space through FD and ID is a complicated multi-step process, abstract it away through bpf_link_primer and bpf_link_prime(), bpf_link_settle(), and bpf_link_cleanup() internal API. They guarantee that until bpf_link is properly attached, user-space won't be able to access partially-initialized bpf_link either from FD or ID. All this allows to simplify bpf_link attachment and error handling code. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200429001614.1544-3-andriin@fb.com
2020-04-29bpf: Refactor bpf_link update handlingAndrii Nakryiko5-49/+34
Make bpf_link update support more generic by making it into another bpf_link_ops methods. This allows generic syscall handling code to be agnostic to various conditionally compiled features (e.g., the case of CONFIG_CGROUP_BPF). This also allows to keep link type-specific code to remain static within respective code base. Refactor existing bpf_cgroup_link code and take advantage of this. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200429001614.1544-2-andriin@fb.com
2020-04-29selftests/bpf: fix test_sysctl_prog with alu32Alexei Starovoitov1-1/+1
Similar to commit b7a0d65d80a0 ("bpf, testing: Workaround a verifier failure for test_progs") fix test_sysctl_prog.c as well. Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-04-29Merge branch 'net-ReST-convert'David S. Miller74-3844/+4731
Mauro Carvalho Chehab says: ==================== net: manually convert files to ReST format - part 1 There are very few documents upstream that aren't converted upstream. This series convert part of the networking text files into ReST. It is part of a bigger set of patches, which were split on parts, in order to make reviewing task easier. The full series (including those ones) are at: https://git.linuxtv.org/mchehab/experimental.git/log/?h=net-docs And the documents, converted to HTML via the building system are at: https://www.infradead.org/~mchehab/kernel_docs/networking/ ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert kcm.txt to ReSTMauro Carvalho Chehab2-40/+46
- add SPDX header; - adjust titles and chapters, adding proper markups; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ipvs-sysctl.txt to ReSTMauro Carvalho Chehab4-93/+102
- add SPDX header; - add a document title; - mark lists as such; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ipvlan.txt to ReSTMauro Carvalho Chehab2-58/+102
- add SPDX header; - adjust titles and chapters, adding proper markups; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ipv6.txt to ReSTMauro Carvalho Chehab4-5/+12
Not much to be done here: - add SPDX header; - add a document title; - mark a literal as such, in order to avoid a warning; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ip-sysctl.txt to ReSTMauro Carvalho Chehab8-284/+560
- add SPDX header; - adjust titles and chapters, adding proper markups; - mark code blocks and literals as such; - mark lists as such; - mark tables as such; - use footnote markup; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ipsec.txt to ReSTMauro Carvalho Chehab2-3/+12
Not much to be done here: - add SPDX header; - add a document title; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert iphase.txt to ReSTMauro Carvalho Chehab3-77/+113
- add SPDX header; - adjust title using the proper markup; - mark code blocks and literals as such; - mark tables as such; - mark lists as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ip_dynaddr.txt to ReSTMauro Carvalho Chehab2-9/+21
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ipddp.txt to ReSTMauro Carvalho Chehab4-7/+13
Not much to be done here: - add SPDX header; - use a document title from existing text; - adjust a chapter markup; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ila.txt to ReSTMauro Carvalho Chehab2-39/+51
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert hinic.txt to ReSTMauro Carvalho Chehab3-2/+6
Not much to be done here: - add SPDX header; - adjust titles and chapters, adding proper markups; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert gtp.txt to ReSTMauro Carvalho Chehab2-38/+60
- add SPDX header; - adjust titles and chapters, adding proper markups; - add notes markups; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert gen_stats.txt to ReSTMauro Carvalho Chehab3-45/+56
- add SPDX header; - mark code blocks and literals as such; - mark tables as such; - mark lists as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert generic_netlink.txt to ReSTMauro Carvalho Chehab2-0/+7
Not much to be done here: - add SPDX header; - add a document title; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert generic-hdlc.txt to ReSTMauro Carvalho Chehab2-24/+63
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert framerelay.txt to ReSTMauro Carvalho Chehab3-10/+16
- add SPDX header; - add a document title; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert fore200e.txt to ReSTMauro Carvalho Chehab3-4/+7
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert filter.txt to ReSTMauro Carvalho Chehab7-387/+494
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - use footnote markup; - mark tables as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert fib_trie.txt to ReSTMauro Carvalho Chehab2-6/+11
- add SPDX header; - adjust title markup; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert eql.txt to ReSTMauro Carvalho Chehab3-300/+146
- add SPDX header; - add a document title; - adjust titles and chapters, adding proper markups; - mark code blocks and literals as such; - mark tables as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert driver.txt to ReSTMauro Carvalho Chehab2-9/+14
- add SPDX header; - add a document title; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert dns_resolver.txt to ReSTMauro Carvalho Chehab6-31/+30
- add SPDX header; - adjust titles and chapters, adding proper markups; - comment out text-only TOC from html/pdf output; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert defza.txt to ReSTMauro Carvalho Chehab2-1/+8
Not much to be done here: - add SPDX header; - add a document title; - use :field: markup for the version number; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert decnet.txt to ReSTMauro Carvalho Chehab5-36/+50
- add SPDX header; - adjust titles and chapters, adding proper markups; - mark lists as such; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert dctcp.txt to ReSTMauro Carvalho Chehab2-3/+12
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert dccp.txt to ReSTMauro Carvalho Chehab2-15/+25
- add SPDX header; - adjust title markup; - comment out text-only TOC from html/pdf output; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert cxacru.txt to ReSTMauro Carvalho Chehab2-33/+54
- add SPDX header; - add a document title; - mark code blocks and literals as such; - mark lists as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert cops.txt to ReSTMauro Carvalho Chehab4-64/+82
- add SPDX header; - adjust titles and chapters, adding proper markups; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert cdc_mbim.txt to ReSTMauro Carvalho Chehab2-30/+47
- add SPDX header; - mark code blocks and literals as such; - use :field: markup; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert bonding.txt to ReSTMauro Carvalho Chehab5-634/+688
- add SPDX header; - adjust titles and chapters, adding proper markups; - comment out text-only TOC from html/pdf output; - mark code blocks and literals as such; - mark tables as such; - add notes markups; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert baycom.txt to ReSTMauro Carvalho Chehab3-56/+73
- add SPDX header; - adjust titles and chapters, adding proper markups; - mark code blocks and literals as such; - mark tables as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ax25.txt to ReSTMauro Carvalho Chehab3-3/+10
There isn't much to be done here. Just: - add SPDX header; - add a document title. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert atm.txt to ReSTMauro Carvalho Chehab3-1/+8
There isn't much to be done here. Just: - add SPDX header; - add a document title. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert arcnet.txt to ReSTMauro Carvalho Chehab3-158/+197
- add SPDX header; - use document title markup; - add notes markups; - mark code blocks and literals as such; - mark tables as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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