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From: Alexander Lobakin <alexandr.lobakin@intel.com>
To: Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>
Cc: "Alexander Lobakin" <alexandr.lobakin@intel.com>,
	"Larysa Zaremba" <larysa.zaremba@intel.com>,
	"Michal Swiatkowski" <michal.swiatkowski@linux.intel.com>,
	"Jesper Dangaard Brouer" <hawk@kernel.org>,
	"Björn Töpel" <bjorn@kernel.org>,
	"Magnus Karlsson" <magnus.karlsson@intel.com>,
	"Maciej Fijalkowski" <maciej.fijalkowski@intel.com>,
	"Jonathan Lemon" <jonathan.lemon@gmail.com>,
	"Toke Hoiland-Jorgensen" <toke@redhat.com>,
	"Lorenzo Bianconi" <lorenzo@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	"Eric Dumazet" <edumazet@google.com>,
	"Jakub Kicinski" <kuba@kernel.org>,
	"Paolo Abeni" <pabeni@redhat.com>,
	"Jesse Brandeburg" <jesse.brandeburg@intel.com>,
	"John Fastabend" <john.fastabend@gmail.com>,
	"Yajun Deng" <yajun.deng@linux.dev>,
	"Willem de Bruijn" <willemb@google.com>,
	bpf@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, xdp-hints@xdp-project.net
Subject: [xdp-hints] [PATCH RFC bpf-next 09/52] net, xdp: add ability to specify BTF ID for XDP metadata
Date: Tue, 28 Jun 2022 21:47:29 +0200	[thread overview]
Message-ID: <20220628194812.1453059-10-alexandr.lobakin@intel.com> (raw)
In-Reply-To: <20220628194812.1453059-1-alexandr.lobakin@intel.com>

Add the UAPI and the corresponding kernel part to be able to specify
the BTF ID of the format which the drivers should compose metadata
in (if supported).

A driver might be able to provide XDP metadata in different formats,
e.g. the generic one and one or several custom (with some
non-universal data from DMA descriptors etc.). In this case, a BPF
loader program will specify the wanted BTF ID and then BPF and
AF_XDP programs will be expecting this format in XDP metadata and
will be comparing different BTF IDs against the one that will be
put in front of a frame.

The BTF ID can be set and updated via both BPF link and rtnetlink
(the %IFLA_XDP_BTF_ID attribute) interfaces, got via &bpf_link_info
and is being passed to the drivers inside &netdev_bpf.
net_device_ops::ndo_bpf() is now being called not only when
@new_prog != @old_prog, but also when @new_prog == @old_prog &&
@new_btf_id != @btf_id, so the drivers should be able to handle
such cases.

Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
---
 include/linux/netdevice.h          |  2 ++
 include/net/xdp.h                  |  1 +
 include/uapi/linux/bpf.h           | 12 ++++++++++++
 include/uapi/linux/if_link.h       |  1 +
 kernel/bpf/syscall.c               |  2 +-
 net/bpf/core.c                     |  1 +
 net/bpf/dev.c                      | 26 +++++++++++++++++++++++---
 net/core/rtnetlink.c               |  6 ++++++
 tools/include/uapi/linux/bpf.h     | 12 ++++++++++++
 tools/include/uapi/linux/if_link.h |  1 +
 10 files changed, 60 insertions(+), 4 deletions(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 1e342c285f48..2218c1901daf 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -985,6 +985,7 @@ struct netdev_bpf {
 		/* XDP_SETUP_PROG */
 		struct {
 			u32 flags;
+			u64 btf_id;
 			struct bpf_prog *prog;
 			struct netlink_ext_ack *extack;
 		};
@@ -3852,6 +3853,7 @@ struct xdp_install_args {
 	struct net_device	*dev;
 	struct netlink_ext_ack	*extack;
 	u32			flags;
+	u64			btf_id;
 };
 
 DECLARE_STATIC_KEY_FALSE(generic_xdp_needed_key);
diff --git a/include/net/xdp.h b/include/net/xdp.h
index 04c852c7a77f..13133c7493bc 100644
--- a/include/net/xdp.h
+++ b/include/net/xdp.h
@@ -400,6 +400,7 @@ static inline bool xdp_metalen_invalid(unsigned long metalen)
 
 struct xdp_attachment_info {
 	struct bpf_prog *prog;
+	u64 btf_id;
 	u32 flags;
 };
 
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index e81362891596..c67ddb78915d 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -1499,6 +1499,10 @@ union bpf_attr {
 				 */
 				__u64		cookie;
 			} tracing;
+			struct {
+				/* target metadata BTF + type ID */
+				__aligned_u64	btf_id;
+			} xdp;
 		};
 	} link_create;
 
@@ -1510,6 +1514,12 @@ union bpf_attr {
 		/* expected link's program fd; is specified only if
 		 * BPF_F_REPLACE flag is set in flags */
 		__u32		old_prog_fd;
+		union {
+			struct {
+				/* new target metadata BTF + type ID */
+				__aligned_u64	new_btf_id;
+			} xdp;
+		};
 	} link_update;
 
 	struct {
@@ -6138,6 +6148,8 @@ struct bpf_link_info {
 		} netns;
 		struct {
 			__u32 ifindex;
+			__u32 :32;
+			__aligned_u64 btf_id;
 		} xdp;
 	};
 } __attribute__((aligned(8)));
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 5f58dcfe2787..73cdcc86875e 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -1307,6 +1307,7 @@ enum {
 	IFLA_XDP_SKB_PROG_ID,
 	IFLA_XDP_HW_PROG_ID,
 	IFLA_XDP_EXPECTED_FD,
+	IFLA_XDP_BTF_ID,
 	__IFLA_XDP_MAX,
 };
 
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index f7a674656067..2e86cfeae10f 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -4575,7 +4575,7 @@ static int link_create(union bpf_attr *attr, bpfptr_t uattr)
 	return ret;
 }
 
-#define BPF_LINK_UPDATE_LAST_FIELD link_update.old_prog_fd
+#define BPF_LINK_UPDATE_LAST_FIELD link_update.xdp.new_btf_id
 
 static int link_update(union bpf_attr *attr)
 {
diff --git a/net/bpf/core.c b/net/bpf/core.c
index fbb72792320a..e5abd5a64df7 100644
--- a/net/bpf/core.c
+++ b/net/bpf/core.c
@@ -552,6 +552,7 @@ void xdp_attachment_setup(struct xdp_attachment_info *info,
 	if (info->prog)
 		bpf_prog_put(info->prog);
 	info->prog = bpf->prog;
+	info->btf_id = bpf->btf_id;
 	info->flags = bpf->flags;
 }
 EXPORT_SYMBOL_GPL(xdp_attachment_setup);
diff --git a/net/bpf/dev.c b/net/bpf/dev.c
index 7df42bb886ad..e96986220126 100644
--- a/net/bpf/dev.c
+++ b/net/bpf/dev.c
@@ -273,6 +273,7 @@ struct bpf_xdp_link {
 	struct bpf_link link;
 	struct net_device *dev; /* protected by rtnl_lock, no refcnt held */
 	int flags;
+	u64 btf_id;
 };
 
 typedef int (*bpf_op_t)(struct net_device *dev, struct netdev_bpf *bpf);
@@ -357,8 +358,13 @@ static int dev_xdp_install(const struct xdp_install_args *args,
 	struct netdev_bpf xdp;
 	int err;
 
+	/* BTF ID must not be set when uninstalling the program */
+	if (!prog && args->btf_id)
+		return -EINVAL;
+
 	memset(&xdp, 0, sizeof(xdp));
 	xdp.command = mode == XDP_MODE_HW ? XDP_SETUP_PROG_HW : XDP_SETUP_PROG;
+	xdp.btf_id = args->btf_id;
 	xdp.extack = args->extack;
 	xdp.flags = args->flags;
 	xdp.prog = prog;
@@ -517,8 +523,11 @@ static int dev_xdp_attach(const struct xdp_install_args *args,
 		}
 	}
 
-	/* don't call drivers if the effective program didn't change */
-	if (new_prog != cur_prog) {
+	/* don't call drivers if the effective program or BTF ID didn't change.
+	 * If @link == %NULL, we don't know the old value, so the only thing we
+	 * can do is to call installing unconditionally
+	 */
+	if (new_prog != cur_prog || !link || args->btf_id != link->btf_id) {
 		bpf_op = dev_xdp_bpf_op(dev, mode);
 		if (!bpf_op) {
 			NL_SET_ERR_MSG(extack, "Underlying driver does not support XDP in native mode");
@@ -545,6 +554,7 @@ static int dev_xdp_attach_link(struct bpf_xdp_link *link)
 	struct xdp_install_args args = {
 		.dev		= link->dev,
 		.flags		= link->flags,
+		.btf_id		= link->btf_id,
 	};
 
 	return dev_xdp_attach(&args, link, NULL, NULL);
@@ -606,13 +616,16 @@ static void bpf_xdp_link_show_fdinfo(const struct bpf_link *link,
 {
 	struct bpf_xdp_link *xdp_link = container_of(link, struct bpf_xdp_link, link);
 	u32 ifindex = 0;
+	u64 btf_id;
 
 	rtnl_lock();
 	if (xdp_link->dev)
 		ifindex = xdp_link->dev->ifindex;
+	btf_id = xdp_link->btf_id;
 	rtnl_unlock();
 
 	seq_printf(seq, "ifindex:\t%u\n", ifindex);
+	seq_printf(seq, "btf_id:\t0x%llx\n", btf_id);
 }
 
 static int bpf_xdp_link_fill_link_info(const struct bpf_link *link,
@@ -620,13 +633,16 @@ static int bpf_xdp_link_fill_link_info(const struct bpf_link *link,
 {
 	struct bpf_xdp_link *xdp_link = container_of(link, struct bpf_xdp_link, link);
 	u32 ifindex = 0;
+	u64 btf_id;
 
 	rtnl_lock();
 	if (xdp_link->dev)
 		ifindex = xdp_link->dev->ifindex;
+	btf_id = xdp_link->btf_id;
 	rtnl_unlock();
 
 	info->xdp.ifindex = ifindex;
+	info->xdp.btf_id = btf_id;
 	return 0;
 }
 
@@ -639,6 +655,7 @@ static int bpf_xdp_link_update(struct bpf_link *link,
 	struct xdp_install_args args = {
 		.dev		= xdp_link->dev,
 		.flags		= xdp_link->flags,
+		.btf_id		= attr->link_update.xdp.new_btf_id,
 	};
 	enum bpf_xdp_mode mode;
 	bpf_op_t bpf_op;
@@ -663,7 +680,7 @@ static int bpf_xdp_link_update(struct bpf_link *link,
 		goto out_unlock;
 	}
 
-	if (old_prog == new_prog) {
+	if (old_prog == new_prog && args.btf_id == xdp_link->btf_id) {
 		/* no-op, don't disturb drivers */
 		bpf_prog_put(new_prog);
 		goto out_unlock;
@@ -678,6 +695,8 @@ static int bpf_xdp_link_update(struct bpf_link *link,
 	old_prog = xchg(&link->prog, new_prog);
 	bpf_prog_put(old_prog);
 
+	xdp_link->btf_id = args.btf_id;
+
 out_unlock:
 	rtnl_unlock();
 	return err;
@@ -716,6 +735,7 @@ int bpf_xdp_link_attach(const union bpf_attr *attr, struct bpf_prog *prog)
 	bpf_link_init(&link->link, BPF_LINK_TYPE_XDP, &bpf_xdp_link_lops, prog);
 	link->dev = dev;
 	link->flags = attr->link_create.flags;
+	link->btf_id = attr->link_create.xdp.btf_id;
 
 	err = bpf_link_prime(&link->link, &link_primer);
 	if (err) {
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 5b06ded689b2..a30723b0e50c 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1979,6 +1979,7 @@ static const struct nla_policy ifla_xdp_policy[IFLA_XDP_MAX + 1] = {
 	[IFLA_XDP_ATTACHED]	= { .type = NLA_U8 },
 	[IFLA_XDP_FLAGS]	= { .type = NLA_U32 },
 	[IFLA_XDP_PROG_ID]	= { .type = NLA_U32 },
+	[IFLA_XDP_BTF_ID]	= { .type = NLA_U64 },
 };
 
 static const struct rtnl_link_ops *linkinfo_to_kind_ops(const struct nlattr *nla)
@@ -2962,6 +2963,7 @@ static int do_setlink(const struct sk_buff *skb,
 	if (tb[IFLA_XDP]) {
 		struct nlattr *xdp[IFLA_XDP_MAX + 1];
 		u32 xdp_flags = 0;
+		u64 btf_id = 0;
 
 		err = nla_parse_nested_deprecated(xdp, IFLA_XDP_MAX,
 						  tb[IFLA_XDP],
@@ -2986,10 +2988,14 @@ static int do_setlink(const struct sk_buff *skb,
 			}
 		}
 
+		if (xdp[IFLA_XDP_BTF_ID])
+			btf_id = nla_get_u64(xdp[IFLA_XDP_BTF_ID]);
+
 		if (xdp[IFLA_XDP_FD]) {
 			struct xdp_install_args args = {
 				.dev		= dev,
 				.extack		= extack,
+				.btf_id		= btf_id,
 				.flags		= xdp_flags,
 			};
 			int expected_fd = -1;
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index e81362891596..c67ddb78915d 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -1499,6 +1499,10 @@ union bpf_attr {
 				 */
 				__u64		cookie;
 			} tracing;
+			struct {
+				/* target metadata BTF + type ID */
+				__aligned_u64	btf_id;
+			} xdp;
 		};
 	} link_create;
 
@@ -1510,6 +1514,12 @@ union bpf_attr {
 		/* expected link's program fd; is specified only if
 		 * BPF_F_REPLACE flag is set in flags */
 		__u32		old_prog_fd;
+		union {
+			struct {
+				/* new target metadata BTF + type ID */
+				__aligned_u64	new_btf_id;
+			} xdp;
+		};
 	} link_update;
 
 	struct {
@@ -6138,6 +6148,8 @@ struct bpf_link_info {
 		} netns;
 		struct {
 			__u32 ifindex;
+			__u32 :32;
+			__aligned_u64 btf_id;
 		} xdp;
 	};
 } __attribute__((aligned(8)));
diff --git a/tools/include/uapi/linux/if_link.h b/tools/include/uapi/linux/if_link.h
index b339bf2196ca..68b126678dc8 100644
--- a/tools/include/uapi/linux/if_link.h
+++ b/tools/include/uapi/linux/if_link.h
@@ -1212,6 +1212,7 @@ enum {
 	IFLA_XDP_SKB_PROG_ID,
 	IFLA_XDP_HW_PROG_ID,
 	IFLA_XDP_EXPECTED_FD,
+	IFLA_XDP_BTF_ID,
 	__IFLA_XDP_MAX,
 };
 
-- 
2.36.1


  parent reply	other threads:[~2022-06-28 19:49 UTC|newest]

Thread overview: 98+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-28 19:47 [xdp-hints] [PATCH RFC bpf-next 00/52] bpf, xdp: introduce and use Generic Hints/metadata Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 01/52] libbpf: factor out BTF loading from load_module_btfs() Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 02/52] libbpf: try to load vmlinux BTF from the kernel first Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 03/52] libbpf: add function to get the pair BTF ID + type ID for a given type Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 04/52] libbpf: patch module BTF ID into BPF insns Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 05/52] net, xdp: decouple XDP code from the core networking code Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 06/52] bpf: pass a pointer to union bpf_attr to bpf_link_ops::update_prog() Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 07/52] net, xdp: remove redundant arguments from dev_xdp_{at,de}tach_link() Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 08/52] net, xdp: factor out XDP install arguments to a separate structure Alexander Lobakin
2022-06-28 19:47 ` Alexander Lobakin [this message]
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 10/52] net, xdp: add ability to specify frame size threshold for XDP metadata Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 11/52] libbpf: factor out __bpf_set_link_xdp_fd_replace() args into a struct Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 12/52] libbpf: add ability to set the BTF/type ID on setting XDP prog Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 13/52] libbpf: add ability to set the meta threshold " Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 14/52] libbpf: pass &bpf_link_create_opts directly to bpf_program__attach_fd() Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 15/52] libbpf: add bpf_program__attach_xdp_opts() Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 16/52] selftests/bpf: expand xdp_link to check that setting meta opts works Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 17/52] samples/bpf: pass a struct to sample_install_xdp() Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 18/52] samples/bpf: add ability to specify metadata threshold Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 19/52] stddef: make __struct_group() UAPI C++-friendly Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 20/52] net, xdp: move XDP metadata helpers into new xdp_meta.h Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 21/52] net, xdp: allow metadata > 32 Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 22/52] net, skbuff: add ability to skip skb metadata comparison Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 23/52] net, skbuff: constify the @skb argument of skb_hwtstamps() Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 24/52] bpf, xdp: declare generic XDP metadata structure Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 25/52] net, xdp: add basic generic metadata accessors Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 26/52] bpf, btf: add a pair of function to work with the BTF ID + type ID pair Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 27/52] net, xdp: add &sk_buff <-> &xdp_meta_generic converters Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 28/52] net, xdp: prefetch data a bit when building an skb from an &xdp_frame Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 29/52] net, xdp: try to fill skb fields when converting " Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 30/52] net, gro: decouple GRO from the NAPI layer Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 31/52] net, gro: expose some GRO API to use outside of NAPI Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 32/52] bpf, cpumap: switch to GRO from netif_receive_skb_list() Alexander Lobakin
2024-08-07 20:38   ` [xdp-hints] " Daniel Xu
2024-08-08  4:54     ` Lorenzo Bianconi
2024-08-08 11:57       ` Alexander Lobakin
2024-08-08 17:22         ` Lorenzo Bianconi
2024-08-08 20:52         ` Daniel Xu
2024-08-09 10:02           ` Jesper Dangaard Brouer
2024-08-09 12:20           ` Alexander Lobakin
2024-08-09 12:45             ` Toke Høiland-Jørgensen
2024-08-09 12:56               ` Alexander Lobakin
2024-08-09 13:42                 ` Toke Høiland-Jørgensen
2024-08-10  0:54                   ` Martin KaFai Lau
2024-08-10  8:02                   ` Lorenzo Bianconi
2024-08-13  1:33             ` Jakub Kicinski
2024-08-13  9:51               ` Jesper Dangaard Brouer
2024-08-10  8:00         ` Lorenzo Bianconi
2024-08-13 14:09         ` Alexander Lobakin
2024-08-13 14:54           ` Toke Høiland-Jørgensen
2024-08-13 15:57             ` Jesper Dangaard Brouer
2024-08-19 14:50               ` Alexander Lobakin
2024-08-21  0:29                 ` Daniel Xu
2024-08-21 13:16                   ` Alexander Lobakin
2024-08-21 16:36                     ` Daniel Xu
2024-08-13 16:14           ` Lorenzo Bianconi
2024-08-13 16:27           ` Lorenzo Bianconi
2024-08-13 16:31             ` Alexander Lobakin
2024-08-08 20:44       ` Daniel Xu
2024-08-09  9:32         ` Jesper Dangaard Brouer
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 33/52] bpf, cpumap: add option to set a timeout for deferred flush Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 34/52] samples/bpf: add 'timeout' option to xdp_redirect_cpu Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 35/52] net, skbuff: introduce napi_skb_cache_get_bulk() Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 36/52] bpf, cpumap: switch to napi_skb_cache_get_bulk() Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 37/52] rcupdate: fix access helpers for incomplete struct pointers on GCC < 10 Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 38/52] net, xdp: remove unused xdp_attachment_info::flags Alexander Lobakin
2022-06-28 19:47 ` [xdp-hints] [PATCH RFC bpf-next 39/52] net, xdp: make &xdp_attachment_info a bit more useful in drivers Alexander Lobakin
2022-06-28 19:48 ` [xdp-hints] [PATCH RFC bpf-next 40/52] net, xdp: add an RCU version of xdp_attachment_setup() Alexander Lobakin
2022-06-28 19:48 ` [xdp-hints] [PATCH RFC bpf-next 41/52] net, xdp: replace net_device::xdp_prog pointer with &xdp_attachment_info Alexander Lobakin
2022-06-28 19:48 ` [xdp-hints] [PATCH RFC bpf-next 42/52] net, xdp: shortcut skb->dev in bpf_prog_run_generic_xdp() Alexander Lobakin
2022-06-28 19:48 ` [xdp-hints] [PATCH RFC bpf-next 43/52] net, xdp: build XDP generic metadata on Generic (skb) XDP path Alexander Lobakin
2022-06-28 19:48 ` [xdp-hints] [PATCH RFC bpf-next 44/52] net, ice: allow XDP prog hot-swapping Alexander Lobakin
2022-06-28 19:48 ` [xdp-hints] [PATCH RFC bpf-next 45/52] net, ice: consolidate all skb fields processing Alexander Lobakin
2022-06-28 19:48 ` [xdp-hints] [PATCH RFC bpf-next 46/52] net, ice: use an onstack &xdp_meta_generic_rx to store HW frame info Alexander Lobakin
2022-06-28 19:48 ` [xdp-hints] [PATCH RFC bpf-next 47/52] net, ice: build XDP generic metadata Alexander Lobakin
2022-06-28 19:48 ` [xdp-hints] [PATCH RFC bpf-next 48/52] libbpf: compress Endianness ops with a macro Alexander Lobakin
2022-06-28 19:48 ` [xdp-hints] [PATCH RFC bpf-next 49/52] libbpf: add LE <--> CPU conversion helpers Alexander Lobakin
2022-06-28 19:48 ` [xdp-hints] [PATCH RFC bpf-next 50/52] libbpf: introduce a couple memory access helpers Alexander Lobakin
2022-06-28 19:48 ` [xdp-hints] [PATCH RFC bpf-next 51/52] selftests/bpf: fix using test_xdp_meta BPF prog via skeleton infra Alexander Lobakin
2022-06-28 19:48 ` [xdp-hints] [PATCH RFC bpf-next 52/52] selftests/bpf: add XDP Generic Hints selftest Alexander Lobakin
2022-06-29  6:15 ` [xdp-hints] Re: [PATCH RFC bpf-next 00/52] bpf, xdp: introduce and use Generic Hints/metadata John Fastabend
2022-06-29 13:43   ` Toke Høiland-Jørgensen
2022-07-04 15:44     ` Alexander Lobakin
2022-07-04 17:13       ` Jesper Dangaard Brouer
2022-07-05 14:38         ` Alexander Lobakin
2022-07-05 19:08           ` Daniel Borkmann
2022-07-04 17:14       ` Toke Høiland-Jørgensen
2022-07-05 15:41         ` Alexander Lobakin
2022-07-05 18:51           ` Toke Høiland-Jørgensen
2022-07-06 13:50             ` Alexander Lobakin
2022-07-06 23:22               ` Toke Høiland-Jørgensen
2022-07-07 11:41                 ` Jesper Dangaard Brouer
2022-07-12 10:33                 ` Magnus Karlsson
2022-07-12 14:14                   ` Jesper Dangaard Brouer
2022-07-15 11:11                     ` Magnus Karlsson
2022-06-29 17:56   ` Zvi Effron
2022-06-30  7:39     ` Magnus Karlsson
2022-07-04 15:31   ` Alexander Lobakin

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