[PATCH bpf-next 07/13] ice: use ice_max_xdp_frame_size() in ice_xdp_setup_prog()

Maciej Fijalkowski
2023-01-31T20:45:52Z

This should have been used in there from day 1, let us address that
before introducing XDP multi-buffer support for Rx side.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
---
drivers/net/ethernet/intel/ice/ice_main.c | 28 +++++++++++------------
1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 88b4a017990d..a9d644276dfd 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -2862,6 +2862,18 @@ int ice_vsi_determine_xdp_res(struct ice_vsi *vsi)
return 0;
}

+/**
+ * ice_max_xdp_frame_size - returns the maximum allowed frame size for XDP
+ * @vsi: Pointer to VSI structure
+ */
+static int ice_max_xdp_frame_size(struct ice_vsi *vsi)
+{
+ if (test_bit(ICE_FLAG_LEGACY_RX, vsi->back->flags))
+ return ICE_RXBUF_1664;
+ else
+ return ICE_RXBUF_3072;
+}
+
/**
* ice_xdp_setup_prog - Add or remove XDP eBPF program
* @vsi: VSI to setup XDP for
@@ -2872,11 +2884,11 @@ static int
ice_xdp_setup_prog(struct ice_vsi *vsi, struct bpf_prog *prog,
struct netlink_ext_ack *extack)
{
- int frame_size = vsi->netdev->mtu + ICE_ETH_PKT_HDR_PAD;
+ unsigned int frame_size = vsi->netdev->mtu + ICE_ETH_PKT_HDR_PAD;
bool if_running = netif_running(vsi->netdev);
int ret = 0, xdp_ring_err = 0;

- if (frame_size > vsi->rx_buf_len) {
+ if (frame_size > ice_max_xdp_frame_size(vsi)) {
NL_SET_ERR_MSG_MOD(extack, "MTU too large for loading XDP");
return -EOPNOTSUPP;
}
@@ -7321,18 +7333,6 @@ static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type)
dev_err(dev, "Rebuild failed, unload and reload driver\n");
}

-/**
- * ice_max_xdp_frame_size - returns the maximum allowed frame size for XDP
- * @vsi: Pointer to VSI structure
- */
-static int ice_max_xdp_frame_size(struct ice_vsi *vsi)
-{
- if (test_bit(ICE_FLAG_LEGACY_RX, vsi->back->flags))
- return ICE_RXBUF_1664;
- else
- return ICE_RXBUF_3072;
-}
-
/**
* ice_change_mtu - NDO callback to change the MTU
* @netdev: network interface device structure
--
2.34.1