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ebpf: Added eBPF RSS loader.

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Added function that loads RSS eBPF program.
Added stub functions for RSS eBPF loader.
Added meson and configuration options.

By default, eBPF feature enabled if libbpf is present in the build system.
libbpf checked in configuration shell script and meson script.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Andrew Melnychenko 2021-05-14 14:48:32 +03:00 • committed by Jason Wang
parent f3fa412de2
commit 46627f41b6
10 changed files with 718 additions and 1 deletions
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23
meson.build
View file

@ -1032,6 +1032,23 @@ if not get_option('fuse_lseek').disabled()
endif
endif
# libbpf
libbpf = dependency('libbpf', required: get_option('bpf'), method: 'pkg-config')
if libbpf.found() and not cc.links('''
#include <bpf/libbpf.h>
int main(void)
{
bpf_object__destroy_skeleton(NULL);
return 0;
}''', dependencies: libbpf)
libbpf = not_found
if get_option('bpf').enabled()
error('libbpf skeleton test failed')
else
warning('libbpf skeleton test failed, disabling')
endif
endif
if get_option('cfi')
cfi_flags=[]
# Check for dependency on LTO
@ -1131,6 +1148,7 @@ endif
config_host_data.set('CONFIG_GTK', gtk.found())
config_host_data.set('CONFIG_LIBATTR', have_old_libattr)
config_host_data.set('CONFIG_LIBCAP_NG', libcap_ng.found())
config_host_data.set('CONFIG_EBPF', libbpf.found())
config_host_data.set('CONFIG_LIBISCSI', libiscsi.found())
config_host_data.set('CONFIG_LIBNFS', libnfs.found())
config_host_data.set('CONFIG_RBD', rbd.found())
@ -1800,6 +1818,7 @@ if have_system
'backends',
'backends/tpm',
'chardev',
'ebpf',
'hw/9pfs',
'hw/acpi',
'hw/adc',
@ -1992,6 +2011,9 @@ subdir('accel')
subdir('plugins')
subdir('bsd-user')
subdir('linux-user')
subdir('ebpf')
common_ss.add(libbpf)
bsd_user_ss.add(files('gdbstub.c'))
specific_ss.add_all(when: 'CONFIG_BSD_USER', if_true: bsd_user_ss)
@ -2701,6 +2723,7 @@ summary_info += {'RDMA support': config_host.has_key('CONFIG_RDMA')}
summary_info += {'PVRDMA support': config_host.has_key('CONFIG_PVRDMA')}
summary_info += {'fdt support': fdt_opt == 'disabled' ? false : fdt_opt}
summary_info += {'libcap-ng support': libcap_ng.found()}
summary_info += {'bpf support': libbpf.found()}
# TODO: add back protocol and server version
summary_info += {'spice support': config_host.has_key('CONFIG_SPICE')}
summary_info += {'rbd support': rbd.found()}