From: Andrii Nakryiko <andriin@fb.com>
To: <bpf@vger.kernel.org>, <netdev@vger.kernel.org>, <ast@fb.com>,
<daniel@iogearbox.net>
Cc: <andrii.nakryiko@gmail.com>, <kernel-team@fb.com>,
Andrii Nakryiko <andriin@fb.com>, Andrey Ignatov <rdna@fb.com>,
Takshak Chahande <ctakshak@fb.com>
Subject: [PATCH bpf-next 7/7] bpf, xdp: remove XDP_QUERY_PROG and XDP_QUERY_PROG_HW XDP commands
Date: Sun, 12 Jul 2020 22:12:30 -0700 [thread overview]
Message-ID: <20200713051230.3250515-8-andriin@fb.com> (raw)
In-Reply-To: <20200713051230.3250515-1-andriin@fb.com>
Now that BPF program/link management is centralized in generic net_device
code, kernel code never queries program id from drivers, so
XDP_QUERY_PROG/XDP_QUERY_PROG_HW commands are unnecessary.
This patch removes all the implementations of those commands in kernel, along
the xdp_attachment_query().
This patch was compile-tested on allyesconfig.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
---
drivers/net/ethernet/amazon/ena/ena_netdev.c | 4 ----
drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 4 ----
.../net/ethernet/cavium/thunder/nicvf_main.c | 3 ---
.../net/ethernet/freescale/dpaa2/dpaa2-eth.c | 3 ---
drivers/net/ethernet/intel/i40e/i40e_main.c | 3 ---
drivers/net/ethernet/intel/ice/ice_main.c | 3 ---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 4 ----
.../net/ethernet/intel/ixgbevf/ixgbevf_main.c | 4 ----
drivers/net/ethernet/marvell/mvneta.c | 3 ---
.../net/ethernet/marvell/mvpp2/mvpp2_main.c | 3 ---
.../net/ethernet/mellanox/mlx4/en_netdev.c | 24 -------------------
.../net/ethernet/mellanox/mlx5/core/en_main.c | 18 --------------
.../ethernet/netronome/nfp/nfp_net_common.c | 4 ----
.../net/ethernet/qlogic/qede/qede_filter.c | 3 ---
drivers/net/ethernet/sfc/efx.c | 4 ----
drivers/net/ethernet/socionext/netsec.c | 3 ---
drivers/net/ethernet/ti/cpsw_priv.c | 3 ---
drivers/net/hyperv/netvsc_bpf.c | 21 +---------------
drivers/net/netdevsim/bpf.c | 4 ----
drivers/net/netdevsim/netdevsim.h | 2 +-
drivers/net/tun.c | 3 ---
drivers/net/veth.c | 15 ------------
drivers/net/virtio_net.c | 17 -------------
drivers/net/xen-netfront.c | 21 ----------------
include/linux/netdevice.h | 8 -------
include/net/xdp.h | 2 --
net/core/dev.c | 4 ----
net/core/xdp.c | 9 -------
28 files changed, 2 insertions(+), 197 deletions(-)
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 91be3ffa1c5c..53d919f1ef15 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -581,10 +581,6 @@ static int ena_xdp(struct net_device *netdev, struct netdev_bpf *bpf)
switch (bpf->command) {
case XDP_SETUP_PROG:
return ena_xdp_set(netdev, bpf);
- case XDP_QUERY_PROG:
- bpf->prog_id = adapter->xdp_bpf_prog ?
- adapter->xdp_bpf_prog->aux->id : 0;
- break;
default:
return -EINVAL;
}
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
index 5e3b4a3b69ea..2704a4709bc7 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
@@ -330,10 +330,6 @@ int bnxt_xdp(struct net_device *dev, struct netdev_bpf *xdp)
case XDP_SETUP_PROG:
rc = bnxt_xdp_set(bp, xdp->prog);
break;
- case XDP_QUERY_PROG:
- xdp->prog_id = bp->xdp_prog ? bp->xdp_prog->aux->id : 0;
- rc = 0;
- break;
default:
rc = -EINVAL;
break;
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
index 2ba0ce115e63..1c6163934e20 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
@@ -1906,9 +1906,6 @@ static int nicvf_xdp(struct net_device *netdev, struct netdev_bpf *xdp)
switch (xdp->command) {
case XDP_SETUP_PROG:
return nicvf_xdp_setup(nic, xdp->prog);
- case XDP_QUERY_PROG:
- xdp->prog_id = nic->xdp_prog ? nic->xdp_prog->aux->id : 0;
- return 0;
default:
return -EINVAL;
}
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index d0cc1dc49aaa..c32f4c2a560b 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -2081,9 +2081,6 @@ static int dpaa2_eth_xdp(struct net_device *dev, struct netdev_bpf *xdp)
switch (xdp->command) {
case XDP_SETUP_PROG:
return setup_xdp(dev, xdp->prog);
- case XDP_QUERY_PROG:
- xdp->prog_id = priv->xdp_prog ? priv->xdp_prog->aux->id : 0;
- break;
default:
return -EINVAL;
}
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index dadbfb3d2a2b..d8315811cbdf 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -12923,9 +12923,6 @@ static int i40e_xdp(struct net_device *dev,
switch (xdp->command) {
case XDP_SETUP_PROG:
return i40e_xdp_setup(vsi, xdp->prog);
- case XDP_QUERY_PROG:
- xdp->prog_id = vsi->xdp_prog ? vsi->xdp_prog->aux->id : 0;
- return 0;
case XDP_SETUP_XSK_UMEM:
return i40e_xsk_umem_setup(vsi, xdp->xsk.umem,
xdp->xsk.queue_id);
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index a1cef089201a..0eb1eb8229d4 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -1974,9 +1974,6 @@ static int ice_xdp(struct net_device *dev, struct netdev_bpf *xdp)
switch (xdp->command) {
case XDP_SETUP_PROG:
return ice_xdp_setup_prog(vsi, xdp->prog, xdp->extack);
- case XDP_QUERY_PROG:
- xdp->prog_id = vsi->xdp_prog ? vsi->xdp_prog->aux->id : 0;
- return 0;
case XDP_SETUP_XSK_UMEM:
return ice_xsk_umem_setup(vsi, xdp->xsk.umem,
xdp->xsk.queue_id);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index f5d3d6230786..bff08fffcf39 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -10314,10 +10314,6 @@ static int ixgbe_xdp(struct net_device *dev, struct netdev_bpf *xdp)
switch (xdp->command) {
case XDP_SETUP_PROG:
return ixgbe_xdp_setup(dev, xdp->prog);
- case XDP_QUERY_PROG:
- xdp->prog_id = adapter->xdp_prog ?
- adapter->xdp_prog->aux->id : 0;
- return 0;
case XDP_SETUP_XSK_UMEM:
return ixgbe_xsk_umem_setup(adapter, xdp->xsk.umem,
xdp->xsk.queue_id);
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 6e9a397db583..e0a73be20715 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -4507,10 +4507,6 @@ static int ixgbevf_xdp(struct net_device *dev, struct netdev_bpf *xdp)
switch (xdp->command) {
case XDP_SETUP_PROG:
return ixgbevf_xdp_setup(dev, xdp->prog);
- case XDP_QUERY_PROG:
- xdp->prog_id = adapter->xdp_prog ?
- adapter->xdp_prog->aux->id : 0;
- return 0;
default:
return -EINVAL;
}
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 37b9c75a5a60..70640d9eb3d8 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -4422,9 +4422,6 @@ static int mvneta_xdp(struct net_device *dev, struct netdev_bpf *xdp)
switch (xdp->command) {
case XDP_SETUP_PROG:
return mvneta_xdp_setup(dev, xdp->prog, xdp->extack);
- case XDP_QUERY_PROG:
- xdp->prog_id = pp->xdp_prog ? pp->xdp_prog->aux->id : 0;
- return 0;
default:
return -EINVAL;
}
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 6a3f356640a0..cd5e9d60307e 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -4656,9 +4656,6 @@ static int mvpp2_xdp(struct net_device *dev, struct netdev_bpf *xdp)
switch (xdp->command) {
case XDP_SETUP_PROG:
return mvpp2_xdp_setup(port, xdp);
- case XDP_QUERY_PROG:
- xdp->prog_id = port->xdp_prog ? port->xdp_prog->aux->id : 0;
- return 0;
default:
return -EINVAL;
}
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 5bd3cd37d50f..46d7c7862300 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2859,35 +2859,11 @@ static int mlx4_xdp_set(struct net_device *dev, struct bpf_prog *prog)
return err;
}
-static u32 mlx4_xdp_query(struct net_device *dev)
-{
- struct mlx4_en_priv *priv = netdev_priv(dev);
- struct mlx4_en_dev *mdev = priv->mdev;
- const struct bpf_prog *xdp_prog;
- u32 prog_id = 0;
-
- if (!priv->tx_ring_num[TX_XDP])
- return prog_id;
-
- mutex_lock(&mdev->state_lock);
- xdp_prog = rcu_dereference_protected(
- priv->rx_ring[0]->xdp_prog,
- lockdep_is_held(&mdev->state_lock));
- if (xdp_prog)
- prog_id = xdp_prog->aux->id;
- mutex_unlock(&mdev->state_lock);
-
- return prog_id;
-}
-
static int mlx4_xdp(struct net_device *dev, struct netdev_bpf *xdp)
{
switch (xdp->command) {
case XDP_SETUP_PROG:
return mlx4_xdp_set(dev, xdp->prog);
- case XDP_QUERY_PROG:
- xdp->prog_id = mlx4_xdp_query(dev);
- return 0;
default:
return -EINVAL;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index b04c8572adea..8d0eb929b372 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -4520,29 +4520,11 @@ static int mlx5e_xdp_set(struct net_device *netdev, struct bpf_prog *prog)
return err;
}
-static u32 mlx5e_xdp_query(struct net_device *dev)
-{
- struct mlx5e_priv *priv = netdev_priv(dev);
- const struct bpf_prog *xdp_prog;
- u32 prog_id = 0;
-
- mutex_lock(&priv->state_lock);
- xdp_prog = priv->channels.params.xdp_prog;
- if (xdp_prog)
- prog_id = xdp_prog->aux->id;
- mutex_unlock(&priv->state_lock);
-
- return prog_id;
-}
-
static int mlx5e_xdp(struct net_device *dev, struct netdev_bpf *xdp)
{
switch (xdp->command) {
case XDP_SETUP_PROG:
return mlx5e_xdp_set(dev, xdp->prog);
- case XDP_QUERY_PROG:
- xdp->prog_id = mlx5e_xdp_query(dev);
- return 0;
case XDP_SETUP_XSK_UMEM:
return mlx5e_xsk_setup_umem(dev, xdp->xsk.umem,
xdp->xsk.queue_id);
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index 83ff18140bfe..6cf482f4562c 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -3704,10 +3704,6 @@ static int nfp_net_xdp(struct net_device *netdev, struct netdev_bpf *xdp)
return nfp_net_xdp_setup_drv(nn, xdp);
case XDP_SETUP_PROG_HW:
return nfp_net_xdp_setup_hw(nn, xdp);
- case XDP_QUERY_PROG:
- return xdp_attachment_query(&nn->xdp, xdp);
- case XDP_QUERY_PROG_HW:
- return xdp_attachment_query(&nn->xdp_hw, xdp);
default:
return nfp_app_bpf(nn->app, nn, xdp);
}
diff --git a/drivers/net/ethernet/qlogic/qede/qede_filter.c b/drivers/net/ethernet/qlogic/qede/qede_filter.c
index d8100434e340..488296900c5c 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_filter.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_filter.c
@@ -1093,9 +1093,6 @@ int qede_xdp(struct net_device *dev, struct netdev_bpf *xdp)
switch (xdp->command) {
case XDP_SETUP_PROG:
return qede_xdp_set(edev, xdp->prog);
- case XDP_QUERY_PROG:
- xdp->prog_id = edev->xdp_prog ? edev->xdp_prog->aux->id : 0;
- return 0;
default:
return -EINVAL;
}
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index befd253af918..cc2f2d3da611 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -726,10 +726,6 @@ static int efx_xdp(struct net_device *dev, struct netdev_bpf *xdp)
switch (xdp->command) {
case XDP_SETUP_PROG:
return efx_xdp_setup_prog(efx, xdp->prog);
- case XDP_QUERY_PROG:
- xdp_prog = rtnl_dereference(efx->xdp_prog);
- xdp->prog_id = xdp_prog ? xdp_prog->aux->id : 0;
- return 0;
default:
return -EINVAL;
}
diff --git a/drivers/net/ethernet/socionext/netsec.c b/drivers/net/ethernet/socionext/netsec.c
index 0f366cc50b74..25db667fa879 100644
--- a/drivers/net/ethernet/socionext/netsec.c
+++ b/drivers/net/ethernet/socionext/netsec.c
@@ -1811,9 +1811,6 @@ static int netsec_xdp(struct net_device *ndev, struct netdev_bpf *xdp)
switch (xdp->command) {
case XDP_SETUP_PROG:
return netsec_xdp_setup(priv, xdp->prog, xdp->extack);
- case XDP_QUERY_PROG:
- xdp->prog_id = priv->xdp_prog ? priv->xdp_prog->aux->id : 0;
- return 0;
default:
return -EINVAL;
}
diff --git a/drivers/net/ethernet/ti/cpsw_priv.c b/drivers/net/ethernet/ti/cpsw_priv.c
index a399f3659346..d6d7a7d9c7ad 100644
--- a/drivers/net/ethernet/ti/cpsw_priv.c
+++ b/drivers/net/ethernet/ti/cpsw_priv.c
@@ -1286,9 +1286,6 @@ int cpsw_ndo_bpf(struct net_device *ndev, struct netdev_bpf *bpf)
case XDP_SETUP_PROG:
return cpsw_xdp_prog_setup(priv, bpf);
- case XDP_QUERY_PROG:
- return xdp_attachment_query(&priv->xdpi, bpf);
-
default:
return -EINVAL;
}
diff --git a/drivers/net/hyperv/netvsc_bpf.c b/drivers/net/hyperv/netvsc_bpf.c
index 8e4141552423..440486d9c999 100644
--- a/drivers/net/hyperv/netvsc_bpf.c
+++ b/drivers/net/hyperv/netvsc_bpf.c
@@ -163,16 +163,6 @@ int netvsc_vf_setxdp(struct net_device *vf_netdev, struct bpf_prog *prog)
return ret;
}
-static u32 netvsc_xdp_query(struct netvsc_device *nvdev)
-{
- struct bpf_prog *prog = netvsc_xdp_get(nvdev);
-
- if (prog)
- return prog->aux->id;
-
- return 0;
-}
-
int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf)
{
struct net_device_context *ndevctx = netdev_priv(dev);
@@ -182,12 +172,7 @@ int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf)
int ret;
if (!nvdev || nvdev->destroy) {
- if (bpf->command == XDP_QUERY_PROG) {
- bpf->prog_id = 0;
- return 0; /* Query must always succeed */
- } else {
- return -ENODEV;
- }
+ return -ENODEV;
}
switch (bpf->command) {
@@ -208,10 +193,6 @@ int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf)
return ret;
- case XDP_QUERY_PROG:
- bpf->prog_id = netvsc_xdp_query(nvdev);
- return 0;
-
default:
return -EINVAL;
}
diff --git a/drivers/net/netdevsim/bpf.c b/drivers/net/netdevsim/bpf.c
index 0b362b8dac17..2e90512f3bbe 100644
--- a/drivers/net/netdevsim/bpf.c
+++ b/drivers/net/netdevsim/bpf.c
@@ -551,10 +551,6 @@ int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf)
ASSERT_RTNL();
switch (bpf->command) {
- case XDP_QUERY_PROG:
- return xdp_attachment_query(&ns->xdp, bpf);
- case XDP_QUERY_PROG_HW:
- return xdp_attachment_query(&ns->xdp_hw, bpf);
case XDP_SETUP_PROG:
err = nsim_setup_prog_checks(ns, bpf);
if (err)
diff --git a/drivers/net/netdevsim/netdevsim.h b/drivers/net/netdevsim/netdevsim.h
index 4ded54a21e1e..07ead0cdc61a 100644
--- a/drivers/net/netdevsim/netdevsim.h
+++ b/drivers/net/netdevsim/netdevsim.h
@@ -108,7 +108,7 @@ static inline void nsim_bpf_uninit(struct netdevsim *ns)
static inline int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf)
{
- return bpf->command == XDP_QUERY_PROG ? 0 : -EOPNOTSUPP;
+ return -EOPNOTSUPP;
}
static inline int nsim_bpf_disable_tc(struct netdevsim *ns)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 858b012074bd..bd642bba060f 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1200,9 +1200,6 @@ static int tun_xdp(struct net_device *dev, struct netdev_bpf *xdp)
switch (xdp->command) {
case XDP_SETUP_PROG:
return tun_xdp_set(dev, xdp->prog, xdp->extack);
- case XDP_QUERY_PROG:
- xdp->prog_id = tun_xdp_query(dev);
- return 0;
default:
return -EINVAL;
}
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index b594f03eeddb..e56cd562a664 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -1198,26 +1198,11 @@ static int veth_xdp_set(struct net_device *dev, struct bpf_prog *prog,
return err;
}
-static u32 veth_xdp_query(struct net_device *dev)
-{
- struct veth_priv *priv = netdev_priv(dev);
- const struct bpf_prog *xdp_prog;
-
- xdp_prog = priv->_xdp_prog;
- if (xdp_prog)
- return xdp_prog->aux->id;
-
- return 0;
-}
-
static int veth_xdp(struct net_device *dev, struct netdev_bpf *xdp)
{
switch (xdp->command) {
case XDP_SETUP_PROG:
return veth_xdp_set(dev, xdp->prog, xdp->extack);
- case XDP_QUERY_PROG:
- xdp->prog_id = veth_xdp_query(dev);
- return 0;
default:
return -EINVAL;
}
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index ba38765dc490..6fa8fe5ef160 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -2490,28 +2490,11 @@ static int virtnet_xdp_set(struct net_device *dev, struct bpf_prog *prog,
return err;
}
-static u32 virtnet_xdp_query(struct net_device *dev)
-{
- struct virtnet_info *vi = netdev_priv(dev);
- const struct bpf_prog *xdp_prog;
- int i;
-
- for (i = 0; i < vi->max_queue_pairs; i++) {
- xdp_prog = rtnl_dereference(vi->rq[i].xdp_prog);
- if (xdp_prog)
- return xdp_prog->aux->id;
- }
- return 0;
-}
-
static int virtnet_xdp(struct net_device *dev, struct netdev_bpf *xdp)
{
switch (xdp->command) {
case XDP_SETUP_PROG:
return virtnet_xdp_set(dev, xdp->prog, xdp->extack);
- case XDP_QUERY_PROG:
- xdp->prog_id = virtnet_xdp_query(dev);
- return 0;
default:
return -EINVAL;
}
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index ed995df19247..895a2a36e441 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1478,32 +1478,11 @@ static int xennet_xdp_set(struct net_device *dev, struct bpf_prog *prog,
return 0;
}
-static u32 xennet_xdp_query(struct net_device *dev)
-{
- unsigned int num_queues = dev->real_num_tx_queues;
- struct netfront_info *np = netdev_priv(dev);
- const struct bpf_prog *xdp_prog;
- struct netfront_queue *queue;
- unsigned int i;
-
- for (i = 0; i < num_queues; ++i) {
- queue = &np->queues[i];
- xdp_prog = rtnl_dereference(queue->xdp_prog);
- if (xdp_prog)
- return xdp_prog->aux->id;
- }
-
- return 0;
-}
-
static int xennet_xdp(struct net_device *dev, struct netdev_bpf *xdp)
{
switch (xdp->command) {
case XDP_SETUP_PROG:
return xennet_xdp_set(dev, xdp->prog, xdp->extack);
- case XDP_QUERY_PROG:
- xdp->prog_id = xennet_xdp_query(dev);
- return 0;
default:
return -EINVAL;
}
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 93bcd81d645d..78c7457e2c98 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -874,8 +874,6 @@ enum bpf_netdev_command {
*/
XDP_SETUP_PROG,
XDP_SETUP_PROG_HW,
- XDP_QUERY_PROG,
- XDP_QUERY_PROG_HW,
/* BPF program for offload callbacks, invoked at program load time. */
BPF_OFFLOAD_MAP_ALLOC,
BPF_OFFLOAD_MAP_FREE,
@@ -909,12 +907,6 @@ struct netdev_bpf {
struct bpf_prog *prog;
struct netlink_ext_ack *extack;
};
- /* XDP_QUERY_PROG, XDP_QUERY_PROG_HW */
- struct {
- u32 prog_id;
- /* flags with which program was installed */
- u32 prog_flags;
- };
/* BPF_OFFLOAD_MAP_ALLOC, BPF_OFFLOAD_MAP_FREE */
struct {
struct bpf_offloaded_map *offmap;
diff --git a/include/net/xdp.h b/include/net/xdp.h
index 609f819ed08b..d66509a5c479 100644
--- a/include/net/xdp.h
+++ b/include/net/xdp.h
@@ -209,8 +209,6 @@ struct xdp_attachment_info {
};
struct netdev_bpf;
-int xdp_attachment_query(struct xdp_attachment_info *info,
- struct netdev_bpf *bpf);
bool xdp_attachment_flags_ok(struct xdp_attachment_info *info,
struct netdev_bpf *bpf);
void xdp_attachment_setup(struct xdp_attachment_info *info,
diff --git a/net/core/dev.c b/net/core/dev.c
index a9c634be8dd7..384932ffdbdd 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5466,10 +5466,6 @@ static int generic_xdp_install(struct net_device *dev, struct netdev_bpf *xdp)
}
break;
- case XDP_QUERY_PROG:
- xdp->prog_id = old ? old->aux->id : 0;
- break;
-
default:
ret = -EINVAL;
break;
diff --git a/net/core/xdp.c b/net/core/xdp.c
index 3c45f99e26d5..48aba933a5a8 100644
--- a/net/core/xdp.c
+++ b/net/core/xdp.c
@@ -400,15 +400,6 @@ void __xdp_release_frame(void *data, struct xdp_mem_info *mem)
}
EXPORT_SYMBOL_GPL(__xdp_release_frame);
-int xdp_attachment_query(struct xdp_attachment_info *info,
- struct netdev_bpf *bpf)
-{
- bpf->prog_id = info->prog ? info->prog->aux->id : 0;
- bpf->prog_flags = info->prog ? info->flags : 0;
- return 0;
-}
-EXPORT_SYMBOL_GPL(xdp_attachment_query);
-
bool xdp_attachment_flags_ok(struct xdp_attachment_info *info,
struct netdev_bpf *bpf)
{
--
2.24.1
prev parent reply other threads:[~2020-07-13 5:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-13 5:12 [PATCH bpf-next 0/7] BPF XDP link Andrii Nakryiko
2020-07-13 5:12 ` [PATCH bpf-next 1/7] bpf, xdp: maintain info on attached XDP BPF programs in net_device Andrii Nakryiko
2020-07-13 5:12 ` [PATCH bpf-next 2/7] bpf, xdp: add bpf_link-based XDP attachment API Andrii Nakryiko
2020-07-13 5:12 ` [PATCH bpf-next 3/7] bpf, xdp: implement LINK_UPDATE for BPF XDP link Andrii Nakryiko
2020-07-13 5:12 ` [PATCH bpf-next 4/7] bpf: implement BPF XDP link-specific introspection APIs Andrii Nakryiko
2020-07-13 5:12 ` [PATCH bpf-next 5/7] libbpf: add support for BPF XDP link Andrii Nakryiko
2020-07-13 5:12 ` [PATCH bpf-next 6/7] selftests/bpf: add BPF XDP link selftests Andrii Nakryiko
2020-07-13 5:12 ` Andrii Nakryiko [this message]
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