From: Stanislav Fomichev <sdf@google.com>
To: bpf@vger.kernel.org
Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
martin.lau@linux.dev, song@kernel.org, yhs@fb.com,
john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com,
haoluo@google.com, jolsa@kernel.org, kuba@kernel.org,
toke@kernel.org, willemb@google.com, dsahern@kernel.org,
magnus.karlsson@intel.com, bjorn@kernel.org,
maciej.fijalkowski@intel.com, hawk@kernel.org,
netdev@vger.kernel.org, xdp-hints@xdp-project.net
Subject: [xdp-hints] [RFC bpf-next v3 10/14] selftests/xsk: Support XDP_TX_METADATA_LEN
Date: Fri, 7 Jul 2023 12:30:02 -0700 [thread overview]
Message-ID: <20230707193006.1309662-11-sdf@google.com> (raw)
In-Reply-To: <20230707193006.1309662-1-sdf@google.com>
Add new config field and call setsockopt.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
---
tools/testing/selftests/bpf/xsk.c | 17 +++++++++++++++++
tools/testing/selftests/bpf/xsk.h | 1 +
2 files changed, 18 insertions(+)
diff --git a/tools/testing/selftests/bpf/xsk.c b/tools/testing/selftests/bpf/xsk.c
index 687d83e707f8..c659713e2d43 100644
--- a/tools/testing/selftests/bpf/xsk.c
+++ b/tools/testing/selftests/bpf/xsk.c
@@ -47,6 +47,10 @@
#define PF_XDP AF_XDP
#endif
+#ifndef XDP_TX_METADATA_LEN
+#define XDP_TX_METADATA_LEN 9
+#endif
+
#define pr_warn(fmt, ...) fprintf(stderr, fmt, ##__VA_ARGS__)
#define XSKMAP_SIZE 1
@@ -124,12 +128,14 @@ static int xsk_set_xdp_socket_config(struct xsk_socket_config *cfg,
cfg->rx_size = XSK_RING_CONS__DEFAULT_NUM_DESCS;
cfg->tx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS;
cfg->bind_flags = 0;
+ cfg->tx_metadata_len = 0;
return 0;
}
cfg->rx_size = usr_cfg->rx_size;
cfg->tx_size = usr_cfg->tx_size;
cfg->bind_flags = usr_cfg->bind_flags;
+ cfg->tx_metadata_len = usr_cfg->tx_metadata_len;
return 0;
}
@@ -479,6 +485,17 @@ int xsk_socket__create_shared(struct xsk_socket **xsk_ptr,
umem->tx_ring_setup_done = true;
}
+ if (xsk->config.tx_metadata_len) {
+ int optval = xsk->config.tx_metadata_len;
+
+ err = setsockopt(xsk->fd, SOL_XDP, XDP_TX_METADATA_LEN,
+ &optval, sizeof(optval));
+ if (err) {
+ err = -errno;
+ goto out_put_ctx;
+ }
+ }
+
err = xsk_get_mmap_offsets(xsk->fd, &off);
if (err) {
err = -errno;
diff --git a/tools/testing/selftests/bpf/xsk.h b/tools/testing/selftests/bpf/xsk.h
index 8da8d557768b..57e0af403aa8 100644
--- a/tools/testing/selftests/bpf/xsk.h
+++ b/tools/testing/selftests/bpf/xsk.h
@@ -212,6 +212,7 @@ struct xsk_socket_config {
__u32 rx_size;
__u32 tx_size;
__u16 bind_flags;
+ __u8 tx_metadata_len;
};
/* Set config to NULL to get the default configuration. */
--
2.41.0.255.g8b1d071c50-goog
next prev parent reply other threads:[~2023-07-07 19:30 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-07 19:29 [xdp-hints] [RFC bpf-next v3 00/14] bpf: Netdev TX metadata Stanislav Fomichev
2023-07-07 19:29 ` [xdp-hints] [RFC bpf-next v3 01/14] bpf: Rename some xdp-metadata functions into dev-bound Stanislav Fomichev
2023-07-07 19:29 ` [xdp-hints] [RFC bpf-next v3 02/14] bpf: Make it easier to add new metadata kfunc Stanislav Fomichev
2023-07-07 19:29 ` [xdp-hints] [RFC bpf-next v3 03/14] xsk: Support XDP_TX_METADATA_LEN Stanislav Fomichev
2023-07-07 19:29 ` [xdp-hints] [RFC bpf-next v3 04/14] bpf: Implement devtx hook points Stanislav Fomichev
2023-07-07 19:29 ` [xdp-hints] [RFC bpf-next v3 05/14] bpf: Implement devtx timestamp kfunc Stanislav Fomichev
2023-07-07 19:29 ` [xdp-hints] [RFC bpf-next v3 06/14] net: veth: Implement devtx timestamp kfuncs Stanislav Fomichev
2023-07-07 19:29 ` [xdp-hints] [RFC bpf-next v3 07/14] bpf: Introduce tx checksum devtx kfuncs Stanislav Fomichev
2023-07-07 19:30 ` [xdp-hints] [RFC bpf-next v3 08/14] net: veth: Implement devtx tx checksum Stanislav Fomichev
2023-07-07 19:30 ` [xdp-hints] [RFC bpf-next v3 09/14] net/mlx5e: Implement devtx kfuncs Stanislav Fomichev
2023-07-11 22:56 ` [xdp-hints] " Alexei Starovoitov
2023-07-11 23:24 ` Stanislav Fomichev
2023-07-11 23:45 ` Alexei Starovoitov
2023-07-12 0:14 ` Stanislav Fomichev
2023-07-12 2:50 ` Alexei Starovoitov
2023-07-12 3:29 ` Stanislav Fomichev
2023-07-12 4:59 ` Alexei Starovoitov
2023-07-12 5:36 ` Stanislav Fomichev
2023-07-12 15:16 ` Willem de Bruijn
2023-07-12 16:28 ` Willem de Bruijn
2023-07-12 19:03 ` Alexei Starovoitov
2023-07-12 19:11 ` Willem de Bruijn
2023-07-12 19:42 ` Alexei Starovoitov
2023-07-12 20:09 ` Jakub Kicinski
2023-07-12 20:53 ` Stanislav Fomichev
2023-07-12 0:32 ` Jakub Kicinski
2023-07-12 2:37 ` Alexei Starovoitov
2023-07-12 3:07 ` Jakub Kicinski
2023-07-12 3:23 ` Alexei Starovoitov
2023-07-07 19:30 ` Stanislav Fomichev [this message]
2023-07-07 19:30 ` [xdp-hints] [RFC bpf-next v3 11/14] selftests/bpf: Add helper to query current netns cookie Stanislav Fomichev
2023-07-07 19:30 ` [xdp-hints] [RFC bpf-next v3 12/14] selftests/bpf: Add csum helpers Stanislav Fomichev
2023-07-07 19:30 ` [xdp-hints] [RFC bpf-next v3 13/14] selftests/bpf: Extend xdp_metadata with devtx kfuncs Stanislav Fomichev
2023-07-07 19:30 ` [xdp-hints] [RFC bpf-next v3 14/14] selftests/bpf: Extend xdp_hw_metadata " Stanislav Fomichev
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