Commit Graph

14 Commits

Author SHA1 Message Date
Stephen Hemminger
4a6672c2d3 fix spelling in comments and doxygen
Fix spelling errors in comments including doxygen found using codespell.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Acked-by: Chenbo Xia <chenbo.xia@intel.com>
2021-11-16 17:57:09 +01:00
David Marchand
d6024c0a67 build: cleanup libpcap dependent components
The RTE_PORT_PCAP variable is used to signal libpcap availability,
though its name seems to refer to pcap support in the port library.
Prefer a generic name and add explicit link dependencies where needed.

Fixes: 7a944656b3 ("test/pcapng: test pcapng library")
Fixes: 2eccf6afbe ("bpf: add function to convert classic BPF to DPDK BPF")
Fixes: cbb44143be ("app/dumpcap: add new packet capture application")

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
2021-11-10 11:42:34 +01:00
Konstantin Ananyev
65d9b7c664 bpf: fix convert API when libpcap missing
rte_bpf_convert() implementation depends on libpcap.
Right now it is defined only when this library is installed and
RTE_PORT_PCAP is defined.
Fix that by providing for such case stub rte_bpf_convert()
implementation that will always return an error.
To draw user attention, if proper implementation is disabled,
warning will be thrown at meson configure stage.
Also move stub for another function (rte_bpf_elf_load) into
the same place (bpf_stub.c).

Fixes: 2eccf6afbe ("bpf: add function to convert classic BPF to DPDK BPF")

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2021-11-04 19:56:20 +01:00
Konstantin Ananyev
7b0a120157 bpf: fix doxygen comment
Fix typo in doxygen comments for rte_bpf_convert().

Fixes: 2eccf6afbe ("bpf: add function to convert classic BPF to DPDK BPF")

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2021-11-04 19:56:14 +01:00
Feifei Wang
388bee69a5 bpf: use wait until scheme for Rx/Tx iteration
Instead of polling for cbi->use to be updated, use wait until scheme.

Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2021-11-03 15:50:14 +01:00
Bruce Richardson
b1094939a5 build/windows: remove separate list of libs
Rather than maintaining a separate list of libraries which are to be
built on windows, use the standard library list and explicitly add to
each library that is not to be built a check for windows and disable
the library at that per-lib level. As well as shortening the main
lib/meson.build file, this also leads to the build summary at the end of
the meson config run correctly listing the libraries which are not to be
built.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2021-10-22 22:40:59 +02:00
Stephen Hemminger
745b7587f9 bpf: add function to dump eBPF instructions
When debugging converted (and other) programs it is useful
to see disassembled eBPF output.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
2021-10-22 22:07:48 +02:00
Stephen Hemminger
2eccf6afbe bpf: add function to convert classic BPF to DPDK BPF
The pcap library emits classic BPF (32 bit) and is useful for
creating filter programs.  The DPDK BPF library only implements
extended BPF (eBPF).  Add an function to convert from old to
new.

The rte_bpf_convert function uses rte_malloc to put the resulting
program in hugepage shared memory so it can be passed from a
secondary process to a primary process.

The code to convert was originally done as part of the Linux
kernel implementation then converted to a userspace program.
See https://github.com/tklauser/filter2xdp

Both authors have agreed that it is allowable to create a modified
version of this code and license it with BSD license used by DPDK.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
2021-10-22 17:19:13 +02:00
Stephen Hemminger
80da61198b bpf: allow self-xor operation
Some BPF programs may use XOR of a register with itself
as a way to zero register in one instruction.
The BPF filter converter generates this in the prolog
to the generated code.

The BPF validator would not allow this because the value of
register was undefined. But after this operation it always zero.

Fixes: 8021917293 ("bpf: add extra validation for input BPF program")
Cc: stable@dpdk.org

Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2021-10-22 17:19:13 +02:00
Thomas Monjalon
7a33572057 lib: remove C++ include guard from private headers
The private headers are compiled internally with a C compiler.
Thus extern "C" declaration is useless in such files.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2021-09-22 22:00:17 +02:00
Thomas Monjalon
fdab8f2e17 version: 21.11-rc0
Start a new release cycle with empty release notes.

The ABI version becomes 22.0.
The map files are updated to the new ABI major number (22).
The ABI exceptions are dropped and CI ABI checks are disabled because
compatibility is not preserved.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: David Marchand <david.marchand@redhat.com>
2021-08-17 08:37:52 +02:00
David Marchand
eeded2044a log: register with standardized names
Let's try to enforce the convention where most drivers use a pmd. logtype
with their class reflected in it, and libraries use a lib. logtype.

Introduce two new macros:
- RTE_LOG_REGISTER_DEFAULT can be used when a single logtype is
  used in a component. It is associated to the default name provided
  by the build system,
- RTE_LOG_REGISTER_SUFFIX can be used when multiple logtypes are used,
  and then the passed name is appended to the default name,

RTE_LOG_REGISTER is left untouched for existing external users
and for components that do not comply with the convention.

There is a new Meson variable log_prefix to adapt the default name
for baseband (pmd.bb.), bus (no pmd.) and mempool (no pmd.) classes.

Note: achieved with below commands + reverted change on net/bonding +
edits on crypto/virtio, compress/mlx5, regex/mlx5

$ git grep -l RTE_LOG_REGISTER drivers/ |
  while read file; do
    pattern=${file##drivers/};
    class=${pattern%%/*};
    pattern=${pattern#$class/};
    drv=${pattern%%/*};
    case "$class" in
      baseband) pattern=pmd.bb.$drv;;
      bus) pattern=bus.$drv;;
      mempool) pattern=mempool.$drv;;
      *) pattern=pmd.$class.$drv;;
    esac
    sed -i -e 's/RTE_LOG_REGISTER(\(.*\), '$pattern',/RTE_LOG_REGISTER_DEFAULT(\1,/' $file;
    sed -i -e 's/RTE_LOG_REGISTER(\(.*\), '$pattern'\.\(.*\),/RTE_LOG_REGISTER_SUFFIX(\1, \2,/' $file;
  done

$ git grep -l RTE_LOG_REGISTER lib/ |
  while read file; do
    pattern=${file##lib/};
    pattern=lib.${pattern%%/*};
    sed -i -e 's/RTE_LOG_REGISTER(\(.*\), '$pattern',/RTE_LOG_REGISTER_DEFAULT(\1,/' $file;
    sed -i -e 's/RTE_LOG_REGISTER(\(.*\), '$pattern'\.\(.*\),/RTE_LOG_REGISTER_SUFFIX(\1, \2,/' $file;
  done

Signed-off-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2021-05-11 15:17:55 +02:00
Hongbo Zheng
cdcee2ec9b bpf: fix JSLT validation
In function 'eval_jcc', judgment 'op == EBPF_JLT' occurs
twice, as a result, the corresponding second statement
cannot be accessed.

This patch fix this problem.

Fixes: 8021917293 ("bpf: add extra validation for input BPF program")
Cc: stable@dpdk.org

Signed-off-by: Hongbo Zheng <zhenghongbo3@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2021-05-05 12:22:30 +02:00
Bruce Richardson
99a2dd955f lib: remove librte_ prefix from directory names
There is no reason for the DPDK libraries to all have 'librte_' prefix on
the directory names. This prefix makes the directory names longer and also
makes it awkward to add features referring to individual libraries in the
build - should the lib names be specified with or without the prefix.
Therefore, we can just remove the library prefix and use the library's
unique name as the directory name, i.e. 'eal' rather than 'librte_eal'

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2021-04-21 14:04:09 +02:00