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authorLinus Torvalds <torvalds@linux-foundation.org>2020-01-28 16:02:33 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-01-28 16:02:33 -0800
commitbd2463ac7d7ec51d432f23bf0e893fb371a908cd (patch)
tree3da32c23be83adb9d9bda7e51b51fa39f69f2447 /tools/lib/bpf/bpf.c
parenta78208e2436963d0b2c7d186277d6e1a9755029a (diff)
parentf76e4c167ea2212e23c15ee7e601a865e822c291 (diff)
downloadlinux-bd2463ac7d7ec51d432f23bf0e893fb371a908cd.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller: 1) Add WireGuard 2) Add HE and TWT support to ath11k driver, from John Crispin. 3) Add ESP in TCP encapsulation support, from Sabrina Dubroca. 4) Add variable window congestion control to TIPC, from Jon Maloy. 5) Add BCM84881 PHY driver, from Russell King. 6) Start adding netlink support for ethtool operations, from Michal Kubecek. 7) Add XDP drop and TX action support to ena driver, from Sameeh Jubran. 8) Add new ipv4 route notifications so that mlxsw driver does not have to handle identical routes itself. From Ido Schimmel. 9) Add BPF dynamic program extensions, from Alexei Starovoitov. 10) Support RX and TX timestamping in igc, from Vinicius Costa Gomes. 11) Add support for macsec HW offloading, from Antoine Tenart. 12) Add initial support for MPTCP protocol, from Christoph Paasch, Matthieu Baerts, Florian Westphal, Peter Krystad, and many others. 13) Add Octeontx2 PF support, from Sunil Goutham, Geetha sowjanya, Linu Cherian, and others. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1469 commits) net: phy: add default ARCH_BCM_IPROC for MDIO_BCM_IPROC udp: segment looped gso packets correctly netem: change mailing list qed: FW 8.42.2.0 debug features qed: rt init valid initialization changed qed: Debug feature: ilt and mdump qed: FW 8.42.2.0 Add fw overlay feature qed: FW 8.42.2.0 HSI changes qed: FW 8.42.2.0 iscsi/fcoe changes qed: Add abstraction for different hsi values per chip qed: FW 8.42.2.0 Additional ll2 type qed: Use dmae to write to widebus registers in fw_funcs qed: FW 8.42.2.0 Parser offsets modified qed: FW 8.42.2.0 Queue Manager changes qed: FW 8.42.2.0 Expose new registers and change windows qed: FW 8.42.2.0 Internal ram offsets modifications MAINTAINERS: Add entry for Marvell OcteonTX2 Physical Function driver Documentation: net: octeontx2: Add RVU HW and drivers overview octeontx2-pf: ethtool RSS config support octeontx2-pf: Add basic ethtool support ...
Diffstat (limited to 'tools/lib/bpf/bpf.c')
-rw-r--r--tools/lib/bpf/bpf.c89
1 files changed, 86 insertions, 3 deletions
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index 98596e15390f..c6dafe563176 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -32,6 +32,9 @@
#include "libbpf.h"
#include "libbpf_internal.h"
+/* make sure libbpf doesn't use kernel-only integer typedefs */
+#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
+
/*
* When building perf, unistd.h is overridden. __NR_bpf is
* required to be defined explicitly.
@@ -95,7 +98,11 @@ int bpf_create_map_xattr(const struct bpf_create_map_attr *create_attr)
attr.btf_key_type_id = create_attr->btf_key_type_id;
attr.btf_value_type_id = create_attr->btf_value_type_id;
attr.map_ifindex = create_attr->map_ifindex;
- attr.inner_map_fd = create_attr->inner_map_fd;
+ if (attr.map_type == BPF_MAP_TYPE_STRUCT_OPS)
+ attr.btf_vmlinux_value_type_id =
+ create_attr->btf_vmlinux_value_type_id;
+ else
+ attr.inner_map_fd = create_attr->inner_map_fd;
return sys_bpf(BPF_MAP_CREATE, &attr, sizeof(attr));
}
@@ -228,7 +235,10 @@ int bpf_load_program_xattr(const struct bpf_load_program_attr *load_attr,
memset(&attr, 0, sizeof(attr));
attr.prog_type = load_attr->prog_type;
attr.expected_attach_type = load_attr->expected_attach_type;
- if (attr.prog_type == BPF_PROG_TYPE_TRACING) {
+ if (attr.prog_type == BPF_PROG_TYPE_STRUCT_OPS) {
+ attr.attach_btf_id = load_attr->attach_btf_id;
+ } else if (attr.prog_type == BPF_PROG_TYPE_TRACING ||
+ attr.prog_type == BPF_PROG_TYPE_EXT) {
attr.attach_btf_id = load_attr->attach_btf_id;
attr.attach_prog_fd = load_attr->attach_prog_fd;
} else {
@@ -443,6 +453,64 @@ int bpf_map_freeze(int fd)
return sys_bpf(BPF_MAP_FREEZE, &attr, sizeof(attr));
}
+static int bpf_map_batch_common(int cmd, int fd, void *in_batch,
+ void *out_batch, void *keys, void *values,
+ __u32 *count,
+ const struct bpf_map_batch_opts *opts)
+{
+ union bpf_attr attr;
+ int ret;
+
+ if (!OPTS_VALID(opts, bpf_map_batch_opts))
+ return -EINVAL;
+
+ memset(&attr, 0, sizeof(attr));
+ attr.batch.map_fd = fd;
+ attr.batch.in_batch = ptr_to_u64(in_batch);
+ attr.batch.out_batch = ptr_to_u64(out_batch);
+ attr.batch.keys = ptr_to_u64(keys);
+ attr.batch.values = ptr_to_u64(values);
+ attr.batch.count = *count;
+ attr.batch.elem_flags = OPTS_GET(opts, elem_flags, 0);
+ attr.batch.flags = OPTS_GET(opts, flags, 0);
+
+ ret = sys_bpf(cmd, &attr, sizeof(attr));
+ *count = attr.batch.count;
+
+ return ret;
+}
+
+int bpf_map_delete_batch(int fd, void *keys, __u32 *count,
+ const struct bpf_map_batch_opts *opts)
+{
+ return bpf_map_batch_common(BPF_MAP_DELETE_BATCH, fd, NULL,
+ NULL, keys, NULL, count, opts);
+}
+
+int bpf_map_lookup_batch(int fd, void *in_batch, void *out_batch, void *keys,
+ void *values, __u32 *count,
+ const struct bpf_map_batch_opts *opts)
+{
+ return bpf_map_batch_common(BPF_MAP_LOOKUP_BATCH, fd, in_batch,
+ out_batch, keys, values, count, opts);
+}
+
+int bpf_map_lookup_and_delete_batch(int fd, void *in_batch, void *out_batch,
+ void *keys, void *values, __u32 *count,
+ const struct bpf_map_batch_opts *opts)
+{
+ return bpf_map_batch_common(BPF_MAP_LOOKUP_AND_DELETE_BATCH,
+ fd, in_batch, out_batch, keys, values,
+ count, opts);
+}
+
+int bpf_map_update_batch(int fd, void *keys, void *values, __u32 *count,
+ const struct bpf_map_batch_opts *opts)
+{
+ return bpf_map_batch_common(BPF_MAP_UPDATE_BATCH, fd, NULL, NULL,
+ keys, values, count, opts);
+}
+
int bpf_obj_pin(int fd, const char *pathname)
{
union bpf_attr attr;
@@ -467,13 +535,28 @@ int bpf_obj_get(const char *pathname)
int bpf_prog_attach(int prog_fd, int target_fd, enum bpf_attach_type type,
unsigned int flags)
{
+ DECLARE_LIBBPF_OPTS(bpf_prog_attach_opts, opts,
+ .flags = flags,
+ );
+
+ return bpf_prog_attach_xattr(prog_fd, target_fd, type, &opts);
+}
+
+int bpf_prog_attach_xattr(int prog_fd, int target_fd,
+ enum bpf_attach_type type,
+ const struct bpf_prog_attach_opts *opts)
+{
union bpf_attr attr;
+ if (!OPTS_VALID(opts, bpf_prog_attach_opts))
+ return -EINVAL;
+
memset(&attr, 0, sizeof(attr));
attr.target_fd = target_fd;
attr.attach_bpf_fd = prog_fd;
attr.attach_type = type;
- attr.attach_flags = flags;
+ attr.attach_flags = OPTS_GET(opts, flags, 0);
+ attr.replace_bpf_fd = OPTS_GET(opts, replace_prog_fd, 0);
return sys_bpf(BPF_PROG_ATTACH, &attr, sizeof(attr));
}