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Merge branch 'tools-ynl-auto-gen-for-all-genetlink-families'

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Jakub Kicinski says:

====================
tools: ynl: auto-gen for all genetlink families

The code gen has caught up with all features required in genetlink
families in Linux 6.8 already. We have also stopped committing auto-
-generated user space code to the tree. Instead of listing all the
families in the Makefile search the spec directory, and generate
code for everything that's not legacy netlink.
====================

Link: https://lore.kernel.org/r/20240202004926.447803-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2024-02-02 21:15:55 -08:00
commit 0eb1ec426c
4 changed files with 67 additions and 1 deletions
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2
tools/net/ynl/Makefile.deps
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@ -15,7 +15,9 @@ UAPI_PATH:=../../../../include/uapi/
get_hdr_inc=-D$(1) -include $(UAPI_PATH)/linux/$(2)
CFLAGS_devlink:=$(call get_hdr_inc,_LINUX_DEVLINK_H_,devlink.h)
CFLAGS_dpll:=$(call get_hdr_inc,_LINUX_DPLL_H_,dpll.h)
CFLAGS_ethtool:=$(call get_hdr_inc,_LINUX_ETHTOOL_NETLINK_H_,ethtool_netlink.h)
CFLAGS_handshake:=$(call get_hdr_inc,_LINUX_HANDSHAKE_H,handshake.h)
CFLAGS_mptcp_pm:=$(call get_hdr_inc,_LINUX_MPTCP_PM_H_,mptcp_pm.h)
CFLAGS_netdev:=$(call get_hdr_inc,_LINUX_NETDEV_H,netdev.h)
CFLAGS_nfsd:=$(call get_hdr_inc,_LINUX_NFSD_NETLINK_H,nfsd_netlink.h)

5
tools/net/ynl/generated/Makefile
View File

@ -14,7 +14,10 @@ YNL_GEN_ARG_ethtool:=--user-header linux/ethtool_netlink.h \
TOOL:=../ynl-gen-c.py
GENS:=ethtool devlink handshake fou netdev nfsd
GENS_PATHS=$(shell grep -nrI --files-without-match \
'protocol: netlink' \
../../../../Documentation/netlink/specs/)
GENS=$(patsubst ../../../../Documentation/netlink/specs/%.yaml,%,${GENS_PATHS})
SRCS=$(patsubst %,%-user.c,${GENS})
HDRS=$(patsubst %,%-user.h,${GENS})
OBJS=$(patsubst %,%-user.o,${GENS})

1
tools/net/ynl/samples/.gitignore vendored
View File

@ -1,4 +1,5 @@
ethtool
devlink
netdev
ovs
page-pool

60
tools/net/ynl/samples/ovs.c Normal file
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@ -0,0 +1,60 @@
// SPDX-License-Identifier: GPL-2.0
#include <stdio.h>
#include <string.h>
#include <ynl.h>
#include "ovs_datapath-user.h"
int main(int argc, char **argv)
{
struct ynl_sock *ys;
int err;
ys = ynl_sock_create(&ynl_ovs_datapath_family, NULL);
if (!ys)
return 1;
if (argc > 1) {
struct ovs_datapath_new_req *req;
req = ovs_datapath_new_req_alloc();
if (!req)
goto err_close;
ovs_datapath_new_req_set_upcall_pid(req, 1);
ovs_datapath_new_req_set_name(req, argv[1]);
err = ovs_datapath_new(ys, req);
ovs_datapath_new_req_free(req);
if (err)
goto err_close;
} else {
struct ovs_datapath_get_req_dump *req;
struct ovs_datapath_get_list *dps;
printf("Dump:\n");
req = ovs_datapath_get_req_dump_alloc();
dps = ovs_datapath_get_dump(ys, req);
ovs_datapath_get_req_dump_free(req);
if (!dps)
goto err_close;
ynl_dump_foreach(dps, dp) {
printf(" %s(%d): pid:%u cache:%u\n",
dp->name, dp->_hdr.dp_ifindex,
dp->upcall_pid, dp->masks_cache_size);
}
ovs_datapath_get_list_free(dps);
}
ynl_sock_destroy(ys);
return 0;
err_close:
fprintf(stderr, "YNL (%d): %s\n", ys->err.code, ys->err.msg);
ynl_sock_destroy(ys);
return 2;
}