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From: John Fastabend <john.fastabend@gmail.com>
To: Hangbin Liu <liuhangbin@gmail.com>, bpf@vger.kernel.org
Cc: netdev@vger.kernel.org,
	"Toke Høiland-Jørgensen" <toke@redhat.com>,
	"Jiri Benc" <jbenc@redhat.com>,
	"Jesper Dangaard Brouer" <brouer@redhat.com>,
	"Eelco Chaudron" <echaudro@redhat.com>,
	ast@kernel.org, "Daniel Borkmann" <daniel@iogearbox.net>,
	"Lorenzo Bianconi" <lorenzo.bianconi@redhat.com>,
	"David Ahern" <dsahern@gmail.com>,
	"Andrii Nakryiko" <andrii.nakryiko@gmail.com>,
	"Alexei Starovoitov" <alexei.starovoitov@gmail.com>,
	"Hangbin Liu" <liuhangbin@gmail.com>
Subject: RE: [PATCHv14 bpf-next 3/6] xdp: add a new helper for dev map multicast support
Date: Sun, 17 Jan 2021 16:10:40 -0800
Message-ID: <6004d200d0d10_266420825@john-XPS-13-9370.notmuch> (raw)
In-Reply-To: <20210114142321.2594697-4-liuhangbin@gmail.com>

Hangbin Liu wrote:
> This patch is for xdp multicast support. which has been discussed
> before[0], The goal is to be able to implement an OVS-like data plane in
> XDP, i.e., a software switch that can forward XDP frames to multiple ports.
> 
> To achieve this, an application needs to specify a group of interfaces
> to forward a packet to. It is also common to want to exclude one or more
> physical interfaces from the forwarding operation - e.g., to forward a
> packet to all interfaces in the multicast group except the interface it
> arrived on. While this could be done simply by adding more groups, this
> quickly leads to a combinatorial explosion in the number of groups an
> application has to maintain.
> 
> To avoid the combinatorial explosion, we propose to include the ability
> to specify an "exclude group" as part of the forwarding operation. This
> needs to be a group (instead of just a single port index), because a
> physical interface can be part of a logical grouping, such as a bond
> device.
> 
> Thus, the logical forwarding operation becomes a "set difference"
> operation, i.e. "forward to all ports in group A that are not also in
> group B". This series implements such an operation using device maps to
> represent the groups. This means that the XDP program specifies two
> device maps, one containing the list of netdevs to redirect to, and the
> other containing the exclude list.
> 
> To achieve this, I re-implement a new helper bpf_redirect_map_multi()
> to accept two maps, the forwarding map and exclude map. The forwarding
> map could be DEVMAP or DEVMAP_HASH, but the exclude map *must* be
> DEVMAP_HASH to get better performace. If user don't want to use exclude
> map and just want simply stop redirecting back to ingress device, they
> can use flag BPF_F_EXCLUDE_INGRESS.
> 
> As both bpf_xdp_redirect_map() and this new helpers are using struct
> bpf_redirect_info, I add a new ex_map and set tgt_value to NULL in the
> new helper to make a difference with bpf_xdp_redirect_map().
> 
> Also I keep the general data path in net/core/filter.c, the native data
> path in kernel/bpf/devmap.c so we can use direct calls to get better
> performace.

[...]

> diff --git a/include/net/xdp.h b/include/net/xdp.h
> index 0cf3976ce77c..0e6468cd0ab9 100644
> --- a/include/net/xdp.h
> +++ b/include/net/xdp.h
> @@ -164,6 +164,7 @@ void xdp_warn(const char *msg, const char *func, const int line);
>  #define XDP_WARN(msg) xdp_warn(msg, __func__, __LINE__)
>  
>  struct xdp_frame *xdp_convert_zc_to_xdp_frame(struct xdp_buff *xdp);
> +struct xdp_frame *xdpf_clone(struct xdp_frame *xdpf);
>  
>  static inline
>  void xdp_convert_frame_to_buff(struct xdp_frame *frame, struct xdp_buff *xdp)
> diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
> index a1ad32456f89..ecf5d117b96a 100644
> --- a/include/uapi/linux/bpf.h
> +++ b/include/uapi/linux/bpf.h
> @@ -3830,6 +3830,27 @@ union bpf_attr {
>   *	Return
>   *		A pointer to a struct socket on success or NULL if the file is
>   *		not a socket.
> + *
> + * long bpf_redirect_map_multi(struct bpf_map *map, struct bpf_map *ex_map, u64 flags)
> + * 	Description
> + * 		This is a multicast implementation for XDP redirect. It will
> + * 		redirect the packet to ALL the interfaces in *map*, but
> + * 		exclude the interfaces in *ex_map*.
> + *
> + * 		The forwarding *map* could be either BPF_MAP_TYPE_DEVMAP or
> + * 		BPF_MAP_TYPE_DEVMAP_HASH. But the *ex_map* must be
> + * 		BPF_MAP_TYPE_DEVMAP_HASH to get better performance.

Would be good to add a note ex_map _must_ be keyed by ifindex for the
helper to work. Its the obvious way to key a hashmap, but not required
iirc.

> + *
> + * 		Currently the *flags* only supports *BPF_F_EXCLUDE_INGRESS*,
> + * 		which additionally excludes the current ingress device.
> + *
> + * 		See also bpf_redirect_map() as a unicast implementation,
> + * 		which supports redirecting packet to a specific ifindex
> + * 		in the map. As both helpers use struct bpf_redirect_info
> + * 		to store the redirect info, we will use a a NULL tgt_value
> + * 		to distinguish multicast and unicast redirecting.
> + * 	Return
> + * 		**XDP_REDIRECT** on success, or **XDP_ABORTED** on error.
>   */

[...]

> +
> +int dev_map_enqueue_multi(struct xdp_buff *xdp, struct net_device *dev_rx,
> +			  struct bpf_map *map, struct bpf_map *ex_map,
> +			  u32 flags)
> +{
> +	struct bpf_dtab_netdev *obj = NULL, *next_obj = NULL;
> +	struct xdp_frame *xdpf, *nxdpf;
> +	bool last_one = false;
> +	int ex_ifindex;
> +	u32 key, next_key;
> +
> +	ex_ifindex = flags & BPF_F_EXCLUDE_INGRESS ? dev_rx->ifindex : 0;
> +
> +	/* Find first available obj */
> +	obj = devmap_get_next_obj(xdp, map, ex_map, NULL, &key, ex_ifindex);
> +	if (!obj)
> +		return 0;
> +
> +	xdpf = xdp_convert_buff_to_frame(xdp);
> +	if (unlikely(!xdpf))
> +		return -EOVERFLOW;
> +
> +	for (;;) {
> +		/* Check if we still have one more available obj */
> +		next_obj = devmap_get_next_obj(xdp, map, ex_map, &key,
> +					       &next_key, ex_ifindex);
> +		if (!next_obj)
> +			last_one = true;
> +
> +		if (last_one) {
> +			bq_enqueue(obj->dev, xdpf, dev_rx, obj->xdp_prog);
> +			return 0;
> +		}

Just collapse above to

  if (!next_obj) {
        bq_enqueue()
        return
  }

'last_one' is a bit pointless here.

> +
> +		nxdpf = xdpf_clone(xdpf);
> +		if (unlikely(!nxdpf)) {
> +			xdp_return_frame_rx_napi(xdpf);
> +			return -ENOMEM;
> +		}
> +
> +		bq_enqueue(obj->dev, nxdpf, dev_rx, obj->xdp_prog);
> +
> +		/* Deal with next obj */
> +		obj = next_obj;
> +		key = next_key;
> +	}
> +}
> +
>  int dev_map_generic_redirect(struct bpf_dtab_netdev *dst, struct sk_buff *skb,
>  			     struct bpf_prog *xdp_prog)
>  {
> diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
> index 3e4b5d9fce78..2139398057cf 100644
> --- a/kernel/bpf/verifier.c
> +++ b/kernel/bpf/verifier.c
> @@ -4420,6 +4420,7 @@ static int check_map_func_compatibility(struct bpf_verifier_env *env,
>  	case BPF_MAP_TYPE_DEVMAP:
>  	case BPF_MAP_TYPE_DEVMAP_HASH:
>  		if (func_id != BPF_FUNC_redirect_map &&
> +		    func_id != BPF_FUNC_redirect_map_multi &&
>  		    func_id != BPF_FUNC_map_lookup_elem)
>  			goto error;
>  		break;
> @@ -4524,6 +4525,11 @@ static int check_map_func_compatibility(struct bpf_verifier_env *env,
>  		    map->map_type != BPF_MAP_TYPE_XSKMAP)
>  			goto error;
>  		break;
> +	case BPF_FUNC_redirect_map_multi:
> +		if (map->map_type != BPF_MAP_TYPE_DEVMAP &&
> +		    map->map_type != BPF_MAP_TYPE_DEVMAP_HASH)
> +			goto error;
> +		break;
>  	case BPF_FUNC_sk_redirect_map:
>  	case BPF_FUNC_msg_redirect_map:
>  	case BPF_FUNC_sock_map_update:
> diff --git a/net/core/filter.c b/net/core/filter.c
> index 9ab94e90d660..123efaf4ab88 100644
> --- a/net/core/filter.c
> +++ b/net/core/filter.c
> @@ -3924,12 +3924,19 @@ static const struct bpf_func_proto bpf_xdp_adjust_meta_proto = {
>  };
>  
>  static int __bpf_tx_xdp_map(struct net_device *dev_rx, void *fwd,
> -			    struct bpf_map *map, struct xdp_buff *xdp)
> +			    struct bpf_map *map, struct xdp_buff *xdp,
> +			    struct bpf_map *ex_map, u32 flags)
>  {
>  	switch (map->map_type) {
>  	case BPF_MAP_TYPE_DEVMAP:
>  	case BPF_MAP_TYPE_DEVMAP_HASH:
> -		return dev_map_enqueue(fwd, xdp, dev_rx);
> +		/* We use a NULL fwd value to distinguish multicast
> +		 * and unicast forwarding
> +		 */
> +		if (fwd)
> +			return dev_map_enqueue(fwd, xdp, dev_rx);
> +		else
> +			return dev_map_enqueue_multi(xdp, dev_rx, map, ex_map, flags);
>  	case BPF_MAP_TYPE_CPUMAP:
>  		return cpu_map_enqueue(fwd, xdp, dev_rx);
>  	case BPF_MAP_TYPE_XSKMAP:
> @@ -3986,12 +3993,14 @@ int xdp_do_redirect(struct net_device *dev, struct xdp_buff *xdp,
>  {
>  	struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
>  	struct bpf_map *map = READ_ONCE(ri->map);
> +	struct bpf_map *ex_map = ri->ex_map;

READ_ONCE(ri->ex_map)?

>  	u32 index = ri->tgt_index;
>  	void *fwd = ri->tgt_value;
>  	int err;
>  
>  	ri->tgt_index = 0;
>  	ri->tgt_value = NULL;
> +	ri->ex_map = NULL;

WRITE_ONCE(ri->ex_map)?

>  	WRITE_ONCE(ri->map, NULL);

So we needed write_once, read_once pairs for ri->map do we also need them in
the ex_map case?

>  
>  	if (unlikely(!map)) {
> @@ -4003,7 +4012,7 @@ int xdp_do_redirect(struct net_device *dev, struct xdp_buff *xdp,
>  
>  		err = dev_xdp_enqueue(fwd, xdp, dev);
>  	} else {
> -		err = __bpf_tx_xdp_map(dev, fwd, map, xdp);
> +		err = __bpf_tx_xdp_map(dev, fwd, map, xdp, ex_map, ri->flags);
>  	}
>  
>  	if (unlikely(err))
> @@ -4017,6 +4026,62 @@ int xdp_do_redirect(struct net_device *dev, struct xdp_buff *xdp,
>  }
>  EXPORT_SYMBOL_GPL(xdp_do_redirect);

[...]

> +BPF_CALL_3(bpf_xdp_redirect_map_multi, struct bpf_map *, map,
> +	   struct bpf_map *, ex_map, u64, flags)
> +{
> +	struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
> +
> +	/* Limit ex_map type to DEVMAP_HASH to get better performance */
> +	if (unlikely((ex_map && ex_map->map_type != BPF_MAP_TYPE_DEVMAP_HASH) ||
> +		     flags & ~BPF_F_EXCLUDE_INGRESS))
> +		return XDP_ABORTED;
> +
> +	ri->tgt_index = 0;
> +	/* Set the tgt_value to NULL to distinguish with bpf_xdp_redirect_map */
> +	ri->tgt_value = NULL;
> +	ri->flags = flags;
> +	ri->ex_map = ex_map;

WRITE_ONCE?

> +
> +	WRITE_ONCE(ri->map, map);
> +
> +	return XDP_REDIRECT;
> +}
> +
> +static const struct bpf_func_proto bpf_xdp_redirect_map_multi_proto = {
> +	.func           = bpf_xdp_redirect_map_multi,
> +	.gpl_only       = false,
> +	.ret_type       = RET_INTEGER,
> +	.arg1_type      = ARG_CONST_MAP_PTR,
> +	.arg2_type      = ARG_CONST_MAP_PTR_OR_NULL,
> +	.arg3_type      = ARG_ANYTHING,
> +};
> +

Thanks,
John

  reply index

Thread overview: 219+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-15  8:54 [RFC PATCH bpf-next 0/2] xdp: add " Hangbin Liu
2020-04-15  8:54 ` [RFC PATCH bpf-next 1/2] " Hangbin Liu
2020-04-20  9:52   ` Hangbin Liu
2020-04-15  8:54 ` [RFC PATCH bpf-next 2/2] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-04-24  8:56 ` [RFC PATCHv2 bpf-next 0/2] xdp: add dev map multicast support Hangbin Liu
2020-04-24  8:56   ` [RFC PATCHv2 bpf-next 1/2] xdp: add a new helper for " Hangbin Liu
2020-04-24 14:19     ` Lorenzo Bianconi
2020-04-28 11:09       ` Eelco Chaudron
2020-05-06  9:35       ` Hangbin Liu
2020-04-24 14:34     ` Toke Høiland-Jørgensen
2020-05-06  9:14       ` Hangbin Liu
2020-05-06 10:00         ` Toke Høiland-Jørgensen
2020-05-08  8:53           ` Hangbin Liu
2020-05-08 14:58             ` Toke Høiland-Jørgensen
2020-05-18  8:45       ` Hangbin Liu
2020-05-19 10:15         ` Jesper Dangaard Brouer
2020-05-20  1:24           ` Hangbin Liu
2020-04-24  8:56   ` [RFC PATCHv2 bpf-next 2/2] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-04-24 14:21     ` Lorenzo Bianconi
2020-05-23  6:05 ` [PATCHv3 bpf-next 0/2] xdp: add dev map multicast support Hangbin Liu
2020-05-23  6:05   ` [PATCHv3 bpf-next 1/2] xdp: add a new helper for " Hangbin Liu
2020-05-26  7:34     ` kbuild test robot
2020-05-23  6:05   ` [PATCHv3 bpf-next 2/2] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-05-26 14:05 ` [PATCHv4 bpf-next 0/2] xdp: add dev map multicast support Hangbin Liu
2020-05-26 14:05   ` [PATCHv4 bpf-next 1/2] xdp: add a new helper for " Hangbin Liu
2020-05-27 10:29     ` Toke Høiland-Jørgensen
2020-06-10 10:18     ` Jesper Dangaard Brouer
2020-06-12  8:54       ` Hangbin Liu
2020-06-16  8:55         ` Jesper Dangaard Brouer
2020-06-16 10:11           ` Hangbin Liu
2020-06-16 14:38             ` Jesper Dangaard Brouer
2020-06-10 10:21     ` Jesper Dangaard Brouer
2020-06-10 10:29       ` Toke Høiland-Jørgensen
2020-06-16  9:04         ` Jesper Dangaard Brouer
2020-05-26 14:05   ` [PATCHv4 bpf-next 2/2] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-05-27 10:21   ` [PATCHv4 bpf-next 0/2] xdp: add dev map multicast support Toke Høiland-Jørgensen
2020-05-27 10:32     ` Eelco Chaudron
2020-05-27 12:38     ` Hangbin Liu
2020-05-27 15:04       ` Toke Høiland-Jørgensen
2020-06-16  9:09         ` Jesper Dangaard Brouer
2020-06-16  9:47           ` Hangbin Liu
2020-06-03  2:40     ` Hangbin Liu
2020-06-03 11:05       ` Toke Høiland-Jørgensen
2020-06-04  4:09         ` Hangbin Liu
2020-06-04  9:44           ` Toke Høiland-Jørgensen
2020-06-04 12:12             ` Hangbin Liu
2020-06-04 12:37               ` Toke Høiland-Jørgensen
2020-06-04 14:41                 ` Hangbin Liu
2020-06-04 16:02                   ` Toke Høiland-Jørgensen
2020-06-05  6:26                     ` Hangbin Liu
2020-06-08 15:32                       ` Toke Høiland-Jørgensen
2020-06-09  3:03                         ` Hangbin Liu
2020-06-09 20:31                           ` Toke Høiland-Jørgensen
2020-06-10  2:35                             ` Hangbin Liu
2020-06-10 10:03                               ` Jesper Dangaard Brouer
2020-07-01  4:19   ` [PATCHv5 bpf-next 0/3] xdp: add a new helper for " Hangbin Liu
2020-07-01  4:19     ` [PATCHv5 bpf-next 1/3] " Hangbin Liu
2020-07-01  5:09       ` Andrii Nakryiko
2020-07-01  6:51         ` Hangbin Liu
2020-07-01 18:33       ` kernel test robot
2020-07-01  4:19     ` [PATCHv5 bpf-next 2/3] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-07-01  4:19     ` [PATCHv5 bpf-next 3/3] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-07-09  1:30     ` [PATCHv6 bpf-next 0/3] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-07-09  1:30       ` [PATCHv6 bpf-next 1/3] " Hangbin Liu
2020-07-09 16:33         ` David Ahern
2020-07-10  6:55           ` Hangbin Liu
2020-07-10 13:46             ` David Ahern
2020-07-11  0:26               ` Hangbin Liu
2020-07-11 16:09                 ` David Ahern
2020-07-09  1:30       ` [PATCHv6 bpf-next 2/3] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-07-09 22:40         ` Daniel Borkmann
2020-07-10  6:41           ` Hangbin Liu
2020-07-10 14:32             ` Daniel Borkmann
2020-07-11  0:21               ` Hangbin Liu
2020-07-09  1:30       ` [PATCHv6 bpf-next 3/3] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-07-09 22:37       ` [PATCHv6 bpf-next 0/3] xdp: add a new helper for dev map multicast support Daniel Borkmann
2020-07-10  7:36         ` Hangbin Liu
2020-07-10 15:02           ` Daniel Borkmann
2020-07-10 16:52             ` David Ahern
2020-07-14  6:32       ` [PATCHv7 " Hangbin Liu
2020-07-14  6:32         ` [PATCHv7 bpf-next 1/3] " Hangbin Liu
2020-07-14 21:52           ` Toke Høiland-Jørgensen
2020-07-15 12:25             ` Hangbin Liu
2020-07-14  6:32         ` [PATCHv7 bpf-next 2/3] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-07-14  6:32         ` [PATCHv7 bpf-next 3/3] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-07-14 12:29         ` [PATCHv7 bpf-next 0/3] xdp: add a new helper for dev map multicast support Toke Høiland-Jørgensen
2020-07-14 17:12           ` David Ahern
2020-07-14 21:53             ` Toke Høiland-Jørgensen
2020-07-15 12:31               ` Hangbin Liu
2020-07-15  3:45             ` Hangbin Liu
2020-07-15 13:08         ` [PATCHv8 " Hangbin Liu
2020-07-15 13:08           ` [PATCHv8 bpf-next 1/3] " Hangbin Liu
2020-07-15 13:08           ` [PATCHv8 bpf-next 2/3] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-07-15 13:08           ` [PATCHv8 bpf-next 3/3] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-08-26 13:19           ` [PATCHv9 bpf-next 0/5] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-08-26 13:19             ` [PATCHv9 bpf-next 1/5] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-08-28 21:56               ` Daniel Borkmann
2020-09-03  9:15                 ` Hangbin Liu
2020-08-26 13:19             ` [PATCHv9 bpf-next 2/5] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-08-28 22:05               ` Daniel Borkmann
2020-08-26 13:20             ` [PATCHv9 bpf-next 3/5] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-08-26 13:20             ` [PATCHv9 bpf-next 4/5] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-08-26 13:20             ` [PATCHv9 bpf-next 5/5] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-09-03 10:26             ` [PATCHv10 bpf-next 0/5] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-09-03 10:26               ` [PATCHv10 bpf-next 1/5] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-09-04 14:26                 ` Daniel Borkmann
2020-09-03 10:26               ` [PATCHv10 bpf-next 2/5] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-09-04 14:22                 ` Daniel Borkmann
2020-09-03 10:26               ` [PATCHv10 bpf-next 3/5] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-09-03 10:27               ` [PATCHv10 bpf-next 4/5] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-09-03 10:27               ` [PATCHv10 bpf-next 5/5] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-09-07  8:27               ` [PATCHv11 bpf-next 0/5] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-09-07  8:27                 ` [PATCHv11 bpf-next 1/5] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-09-07  8:27                 ` [PATCHv11 bpf-next 2/5] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-09-09 21:52                   ` Alexei Starovoitov
2020-09-10  2:35                     ` Hangbin Liu
2020-09-10  3:30                       ` David Ahern
2020-09-10  5:35                         ` Alexei Starovoitov
2020-09-10  9:44                           ` Toke Høiland-Jørgensen
2020-09-10 15:39                             ` Alexei Starovoitov
2020-09-10 17:50                             ` Jesper Dangaard Brouer
2020-09-10 18:35                               ` David Ahern
2020-09-11  7:58                                 ` Jesper Dangaard Brouer
2020-09-15 16:12                                   ` David Ahern
2020-09-07  8:27                 ` [PATCHv11 bpf-next 3/5] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-09-07  8:27                 ` [PATCHv11 bpf-next 4/5] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-09-07  8:27                 ` [PATCHv11 bpf-next 5/5] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-12-16 14:30                 ` [PATCHv12 bpf-next 0/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-12-16 14:30                   ` [PATCHv12 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2020-12-17 16:07                     ` David Ahern
2020-12-18  9:43                       ` Hangbin Liu
2020-12-21  8:38                       ` Hangbin Liu
2020-12-16 14:30                   ` [PATCHv12 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-12-16 14:30                   ` [PATCHv12 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-12-16 14:30                   ` [PATCHv12 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-12-16 14:30                   ` [PATCHv12 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-12-16 14:30                   ` [PATCHv12 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-12-21 12:34                   ` [PATCHv13 bpf-next 0/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-12-21 12:35                     ` [PATCHv13 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2020-12-21 12:35                     ` [PATCHv13 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-12-21 12:35                     ` [PATCHv13 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-12-21 12:35                     ` [PATCHv13 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-12-21 12:35                     ` [PATCHv13 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-12-21 12:35                     ` [PATCHv13 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2021-01-14 14:23                     ` [PATCHv14 bpf-next 0/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-14 14:23                       ` [PATCHv14 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2021-01-17 22:57                         ` John Fastabend
2021-01-18 10:07                           ` Hangbin Liu
2021-01-21 14:33                             ` Jesper Dangaard Brouer
2021-01-14 14:23                       ` [PATCHv14 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-14 14:23                       ` [PATCHv14 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-18  0:10                         ` John Fastabend [this message]
2021-01-18  8:44                           ` Hangbin Liu
2021-01-18 10:47                             ` Toke Høiland-Jørgensen
2021-01-18 15:14                               ` John Fastabend
2021-01-14 14:23                       ` [PATCHv14 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2021-01-14 14:23                       ` [PATCHv14 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-14 14:23                       ` [PATCHv14 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2021-01-20  2:25                       ` [PATCHv15 bpf-next 0/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-20  2:25                         ` [PATCHv15 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2021-01-20 22:42                           ` Maciej Fijalkowski
2021-01-21  3:54                             ` Hangbin Liu
2021-01-21 13:35                               ` Maciej Fijalkowski
2021-01-20  2:25                         ` [PATCHv15 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-20  2:25                         ` [PATCHv15 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-20  2:25                         ` [PATCHv15 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2021-01-20  2:25                         ` [PATCHv15 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-20  2:25                         ` [PATCHv15 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2021-01-22  7:46                         ` [PATCHv16 bpf-next 0/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-22  7:46                           ` [PATCHv16 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2021-01-22 10:50                             ` Maciej Fijalkowski
2021-01-22 13:38                               ` Toke Høiland-Jørgensen
2021-01-25  3:30                                 ` Hangbin Liu
2021-01-25 11:21                                   ` Toke Høiland-Jørgensen
2021-01-25 12:29                                     ` Maciej Fijalkowski
2021-01-22  7:46                           ` [PATCHv16 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-22  7:46                           ` [PATCHv16 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-25 12:27                             ` Maciej Fijalkowski
2021-01-26  1:17                               ` Hangbin Liu
2021-01-27 22:13                             ` John Fastabend
2021-01-22  7:46                           ` [PATCHv16 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2021-01-22  7:46                           ` [PATCHv16 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-22  7:46                           ` [PATCHv16 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2021-01-22 13:43                           ` [PATCHv16 bpf-next 0/6] xdp: add a new helper for dev map multicast support Toke Høiland-Jørgensen
2021-01-25 12:45                           ` [PATCHv17 " Hangbin Liu
2021-01-25 12:45                             ` [PATCHv17 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2021-01-27  7:37                               ` John Fastabend
2021-01-27  9:41                                 ` Toke Høiland-Jørgensen
2021-01-27 12:20                                   ` Maciej Fijalkowski
2021-01-27 15:00                                     ` Jesper Dangaard Brouer
2021-01-27 15:52                                       ` John Fastabend
2021-01-27 16:05                                         ` Toke Høiland-Jørgensen
2021-01-27 15:58                               ` Jesper Dangaard Brouer
2021-01-25 12:45                             ` [PATCHv17 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-27 21:50                               ` John Fastabend
2021-01-25 12:45                             ` [PATCHv17 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-25 12:45                             ` [PATCHv17 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2021-01-25 12:45                             ` [PATCHv17 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-27 22:24                               ` John Fastabend
2021-01-28  3:53                                 ` Hangbin Liu
2021-01-28 23:14                                   ` John Fastabend
2021-01-25 12:45                             ` [PATCHv17 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2021-01-28 23:37                               ` John Fastabend
2021-01-29  1:46                                 ` Hangbin Liu
2021-02-04  0:14                             ` [PATCHv17 bpf-next 0/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-02-04  2:53                               ` John Fastabend
2021-02-04  3:12                                 ` Hangbin Liu
2021-02-04 11:00                                   ` Toke Høiland-Jørgensen
2021-02-04 12:09                                     ` Maciej Fijalkowski
2021-02-04 13:33                                       ` Hangbin Liu
2021-02-04 17:03                                     ` Jakub Kicinski
2021-02-05  3:07                                       ` Hangbin Liu
2021-02-04 14:03                             ` [PATCHv18 " Hangbin Liu
2021-02-04 14:03                               ` [PATCHv18 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2021-02-04 14:03                               ` [PATCHv18 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-02-04 14:03                               ` [PATCHv18 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-02-04 14:03                               ` [PATCHv18 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2021-02-04 14:03                               ` [PATCHv18 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-02-04 14:03                               ` [PATCHv18 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu

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