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Date: Wed, 13 Feb 2019 18:07:29 +0100
From: Björn Töpel <bjorn.topel@...il.com>
To: ast@...nel.org, daniel@...earbox.net, netdev@...r.kernel.org
Cc: Jan Sokolowski <jan.sokolowski@...el.com>,
magnus.karlsson@...el.com, magnus.karlsson@...il.com,
intel-wired-lan@...ts.osuosl.org
Subject: [PATCH bpf-next] net: bpf: remove XDP_QUERY_XSK_UMEM enumerator
From: Jan Sokolowski <jan.sokolowski@...el.com>
Commit c9b47cc1fabc ("xsk: fix bug when trying to use both copy and
zero-copy on one queue id") moved the umem query code to the AF_XDP
core, and therefore removed the need to query the netdevice for a
umem.
This patch removes XDP_QUERY_XSK_UMEM and all code that implement that
behavior, which is just dead code.
Signed-off-by: Jan Sokolowski <jan.sokolowski@...el.com>
---
drivers/net/ethernet/intel/i40e/i40e_main.c | 3 --
drivers/net/ethernet/intel/i40e/i40e_xsk.c | 28 -------------------
drivers/net/ethernet/intel/i40e/i40e_xsk.h | 2 --
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 3 --
.../ethernet/intel/ixgbe/ixgbe_txrx_common.h | 2 --
drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 17 -----------
include/linux/netdevice.h | 7 ++---
7 files changed, 3 insertions(+), 59 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 44856a84738d..5e74a5127849 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -12128,9 +12128,6 @@ static int i40e_xdp(struct net_device *dev,
case XDP_QUERY_PROG:
xdp->prog_id = vsi->xdp_prog ? vsi->xdp_prog->aux->id : 0;
return 0;
- case XDP_QUERY_XSK_UMEM:
- return i40e_xsk_umem_query(vsi, &xdp->xsk.umem,
- xdp->xsk.queue_id);
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/i40e/i40e_xsk.c b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
index 96d849460d9b..e190a2c2b9ff 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_xsk.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
@@ -154,34 +154,6 @@ static int i40e_xsk_umem_disable(struct i40e_vsi *vsi, u16 qid)
return 0;
}
-/**
- * i40e_xsk_umem_query - Queries a certain ring/qid for its UMEM
- * @vsi: Current VSI
- * @umem: UMEM associated to the ring, if any
- * @qid: Rx ring to associate UMEM to
- *
- * This function will store, if any, the UMEM associated to certain ring.
- *
- * Returns 0 on success, <0 on failure
- **/
-int i40e_xsk_umem_query(struct i40e_vsi *vsi, struct xdp_umem **umem,
- u16 qid)
-{
- struct net_device *netdev = vsi->netdev;
- struct xdp_umem *queried_umem;
-
- if (vsi->type != I40E_VSI_MAIN)
- return -EINVAL;
-
- queried_umem = xdp_get_umem_from_qid(netdev, qid);
-
- if (!queried_umem)
- return -EINVAL;
-
- *umem = queried_umem;
- return 0;
-}
-
/**
* i40e_xsk_umem_setup - Enable/disassociate a UMEM to/from a ring/qid
* @vsi: Current VSI
diff --git a/drivers/net/ethernet/intel/i40e/i40e_xsk.h b/drivers/net/ethernet/intel/i40e/i40e_xsk.h
index 9038c5d5cf08..8cc0a2e7d9a2 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_xsk.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_xsk.h
@@ -10,8 +10,6 @@ struct zero_copy_allocator;
int i40e_queue_pair_disable(struct i40e_vsi *vsi, int queue_pair);
int i40e_queue_pair_enable(struct i40e_vsi *vsi, int queue_pair);
-int i40e_xsk_umem_query(struct i40e_vsi *vsi, struct xdp_umem **umem,
- u16 qid);
int i40e_xsk_umem_setup(struct i40e_vsi *vsi, struct xdp_umem *umem,
u16 qid);
void i40e_zca_free(struct zero_copy_allocator *alloc, unsigned long handle);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index b53087a980ef..38c430b94ae3 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -10280,9 +10280,6 @@ static int ixgbe_xdp(struct net_device *dev, struct netdev_bpf *xdp)
xdp->prog_id = adapter->xdp_prog ?
adapter->xdp_prog->aux->id : 0;
return 0;
- case XDP_QUERY_XSK_UMEM:
- return ixgbe_xsk_umem_query(adapter, &xdp->xsk.umem,
- xdp->xsk.queue_id);
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/ixgbe/ixgbe_txrx_common.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_txrx_common.h
index 53d4089f5644..d93a690aff74 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_txrx_common.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_txrx_common.h
@@ -30,8 +30,6 @@ void ixgbe_txrx_ring_enable(struct ixgbe_adapter *adapter, int ring);
struct xdp_umem *ixgbe_xsk_umem(struct ixgbe_adapter *adapter,
struct ixgbe_ring *ring);
-int ixgbe_xsk_umem_query(struct ixgbe_adapter *adapter, struct xdp_umem **umem,
- u16 qid);
int ixgbe_xsk_umem_setup(struct ixgbe_adapter *adapter, struct xdp_umem *umem,
u16 qid);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c
index 65c3e2c979d4..98870707b51a 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c
@@ -174,23 +174,6 @@ static int ixgbe_xsk_umem_disable(struct ixgbe_adapter *adapter, u16 qid)
return 0;
}
-int ixgbe_xsk_umem_query(struct ixgbe_adapter *adapter, struct xdp_umem **umem,
- u16 qid)
-{
- if (qid >= adapter->num_rx_queues)
- return -EINVAL;
-
- if (adapter->xsk_umems) {
- if (qid >= adapter->num_xsk_umems)
- return -EINVAL;
- *umem = adapter->xsk_umems[qid];
- return 0;
- }
-
- *umem = NULL;
- return 0;
-}
-
int ixgbe_xsk_umem_setup(struct ixgbe_adapter *adapter, struct xdp_umem *umem,
u16 qid)
{
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 1d95e634f3fe..6aedaf1e9a25 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -868,7 +868,6 @@ enum bpf_netdev_command {
/* BPF program for offload callbacks, invoked at program load time. */
BPF_OFFLOAD_MAP_ALLOC,
BPF_OFFLOAD_MAP_FREE,
- XDP_QUERY_XSK_UMEM,
XDP_SETUP_XSK_UMEM,
};
@@ -895,10 +894,10 @@ struct netdev_bpf {
struct {
struct bpf_offloaded_map *offmap;
};
- /* XDP_QUERY_XSK_UMEM, XDP_SETUP_XSK_UMEM */
+ /* XDP_SETUP_XSK_UMEM */
struct {
- struct xdp_umem *umem; /* out for query*/
- u16 queue_id; /* in for query */
+ struct xdp_umem *umem;
+ u16 queue_id;
} xsk;
};
};
--
2.19.1
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