From: sven.auhagen@voleatech.de
To: anthony.l.nguyen@intel.com, maciej.fijalkowski@intel.com
Cc: davem@davemloft.net, intel-wired-lan@lists.osuosl.org,
netdev@vger.kernel.org, nhorman@redhat.com, sassmann@redhat.com,
sandeep.penigalapati@intel.com, brouer@redhat.com
Subject: [PATCH v2 3/6] igb: XDP extack message on error
Date: Sat, 17 Oct 2020 09:12:35 +0200 [thread overview]
Message-ID: <20201017071238.95190-4-sven.auhagen@voleatech.de> (raw)
In-Reply-To: <20201017071238.95190-1-sven.auhagen@voleatech.de>
From: Sven Auhagen <sven.auhagen@voleatech.de>
Add an extack error message when the RX buffer size is too small
for the frame size.
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
---
drivers/net/ethernet/intel/igb/igb_main.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 0a9198037b98..088f9ddb0093 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -2824,20 +2824,22 @@ static int igb_setup_tc(struct net_device *dev, enum tc_setup_type type,
}
}
-static int igb_xdp_setup(struct net_device *dev, struct bpf_prog *prog)
+static int igb_xdp_setup(struct net_device *dev, struct netdev_bpf *bpf)
{
int i, frame_size = dev->mtu + IGB_ETH_PKT_HDR_PAD;
struct igb_adapter *adapter = netdev_priv(dev);
+ struct bpf_prog *prog = bpf->prog, *old_prog;
bool running = netif_running(dev);
- struct bpf_prog *old_prog;
bool need_reset;
/* verify igb ring attributes are sufficient for XDP */
for (i = 0; i < adapter->num_rx_queues; i++) {
struct igb_ring *ring = adapter->rx_ring[i];
- if (frame_size > igb_rx_bufsz(ring))
+ if (frame_size > igb_rx_bufsz(ring)) {
+ NL_SET_ERR_MSG_MOD(bpf->extack, "The RX buffer size is too small for the frame size");
return -EINVAL;
+ }
}
old_prog = xchg(&adapter->xdp_prog, prog);
@@ -2869,7 +2871,7 @@ static int igb_xdp(struct net_device *dev, struct netdev_bpf *xdp)
{
switch (xdp->command) {
case XDP_SETUP_PROG:
- return igb_xdp_setup(dev, xdp->prog);
+ return igb_xdp_setup(dev, xdp);
default:
return -EINVAL;
}
@@ -6499,7 +6501,7 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
struct igb_ring *ring = adapter->rx_ring[i];
if (max_frame > igb_rx_bufsz(ring)) {
- netdev_warn(adapter->netdev, "Requested MTU size is not supported with XDP\n");
+ netdev_warn(adapter->netdev, "Requested MTU size is not supported with XDP. Max frame size is %d\n", max_frame);
return -EINVAL;
}
}
--
2.20.1
next prev parent reply other threads:[~2020-10-17 7:12 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-17 7:12 [PATCH v2 0/6] igb: xdp patches followup sven.auhagen
2020-10-17 7:12 ` [PATCH v2 1/6] igb: XDP xmit back fix error code sven.auhagen
2020-10-17 7:12 ` [PATCH v2 2/6] igb: take vlan double header into account sven.auhagen
2020-10-17 7:12 ` sven.auhagen [this message]
2020-10-17 7:12 ` [PATCH v2 4/6] igb: skb add metasize for xdp sven.auhagen
2020-10-17 7:12 ` [PATCH v2 5/6] igb: use xdp_do_flush sven.auhagen
2020-10-17 7:12 ` [PATCH v2 6/6] igb: avoid transmit queue timeout in xdp path sven.auhagen
2020-10-18 13:28 ` Maciej Fijalkowski
2020-10-18 13:39 ` [PATCH v2 0/6] igb: xdp patches followup Maciej Fijalkowski
2020-10-18 19:03 ` Jakub Kicinski
2020-10-19 5:43 ` Sven Auhagen
2020-10-19 5:43 ` Sven Auhagen
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