diff options
| author |   Jan Sokolowski <jan.sokolowski@intel.com> | 2019-02-20 15:20:14 +0000 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2019-02-21 11:11:25 -0800 |
| commit | c685c69fba71462c3f9f6a1fb6151cded6c74d42 (patch) | |
| tree | 0446f6715108de6dee1c55b14bef083134ca3049 /drivers | |
| parent | i40e: fix XDP_REDIRECT/XDP xmit ring cleanup race (diff) | |
| download | linux-dev-c685c69fba71462c3f9f6a1fb6151cded6c74d42.tar.xz linux-dev-c685c69fba71462c3f9f6a1fb6151cded6c74d42.zip | |
ixgbe: don't do any AF_XDP zero-copy transmit if netif is not OK
An issue has been found while testing zero-copy XDP that
causes a reset to be triggered. As it takes some time to
turn the carrier on after setting zc, and we already
start trying to transmit some packets, watchdog considers
this as an erroneous state and triggers a reset.
Don't do any work if netif carrier is not OK.
Fixes: 8221c5eba8c13 (ixgbe: add AF_XDP zero-copy Tx support)
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c index 654ae92342ea..36a8879536a4 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c @@ -642,7 +642,8 @@ static bool ixgbe_xmit_zc(struct ixgbe_ring *xdp_ring, unsigned int budget) dma_addr_t dma; while (budget-- > 0) { - if (unlikely(!ixgbe_desc_unused(xdp_ring))) { + if (unlikely(!ixgbe_desc_unused(xdp_ring)) || + !netif_carrier_ok(xdp_ring->netdev)) { work_done = false; break; } |