diff options
| author | Eryk Rybak | 2021-01-14 16:17:06 +0000 |
|---|---|---|
| committer | Tony Nguyen | 2021-02-08 17:25:27 -0800 |
| commit | 613142b0bb8840016c7a41b3b681f6130cc49c86 (patch) | |
| tree | 97dc4c542432b2f1d626eba66b98f9b0023d0772 | |
| parent | f020fa1a79ff276ff6cc742c71004f2b4ec0b8c2 (diff) | |
i40e: Log error for oversized MTU on device
When attempting to link XDP prog with MTU larger than supported,
user is not informed why XDP linking fails. Adding proper
error message: "MTU too large to enable XDP".
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Eryk Rybak <eryk.roch.rybak@intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 521ea9df38d5..3e241681ddd5 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -12448,9 +12448,10 @@ out_err: * i40e_xdp_setup - add/remove an XDP program * @vsi: VSI to changed * @prog: XDP program + * @extack: netlink extended ack **/ -static int i40e_xdp_setup(struct i40e_vsi *vsi, - struct bpf_prog *prog) +static int i40e_xdp_setup(struct i40e_vsi *vsi, struct bpf_prog *prog, + struct netlink_ext_ack *extack) { int frame_size = vsi->netdev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; struct i40e_pf *pf = vsi->back; @@ -12459,8 +12460,10 @@ static int i40e_xdp_setup(struct i40e_vsi *vsi, int i; /* Don't allow frames that span over multiple buffers */ - if (frame_size > vsi->rx_buf_len) + if (frame_size > vsi->rx_buf_len) { + NL_SET_ERR_MSG_MOD(extack, "MTU too large to enable XDP"); return -EINVAL; + } if (!i40e_enabled_xdp_vsi(vsi) && !prog) return 0; @@ -12769,7 +12772,7 @@ static int i40e_xdp(struct net_device *dev, switch (xdp->command) { case XDP_SETUP_PROG: - return i40e_xdp_setup(vsi, xdp->prog); + return i40e_xdp_setup(vsi, xdp->prog, xdp->extack); case XDP_SETUP_XSK_POOL: return i40e_xsk_pool_setup(vsi, xdp->xsk.pool, xdp->xsk.queue_id); |