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path: root/drivers/net/ethernet/intel/i40e/i40e_main.c
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Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_main.c')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_main.c27
1 files changed, 24 insertions, 3 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index f52e2c46e6a7..e4ff531db14a 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -3289,8 +3289,11 @@ static int i40e_configure_rx_ring(struct i40e_ring *ring)
i40e_alloc_rx_buffers_zc(ring, I40E_DESC_UNUSED(ring)) :
!i40e_alloc_rx_buffers(ring, I40E_DESC_UNUSED(ring));
if (!ok) {
+ /* Log this in case the user has forgotten to give the kernel
+ * any buffers, even later in the application.
+ */
dev_info(&vsi->back->pdev->dev,
- "Failed allocate some buffers on %sRx ring %d (pf_q %d)\n",
+ "Failed to allocate some buffers on %sRx ring %d (pf_q %d)\n",
ring->xsk_umem ? "UMEM enabled " : "",
ring->queue_index, pf_q);
}
@@ -6725,8 +6728,13 @@ void i40e_down(struct i40e_vsi *vsi)
for (i = 0; i < vsi->num_queue_pairs; i++) {
i40e_clean_tx_ring(vsi->tx_rings[i]);
- if (i40e_enabled_xdp_vsi(vsi))
+ if (i40e_enabled_xdp_vsi(vsi)) {
+ /* Make sure that in-progress ndo_xdp_xmit
+ * calls are completed.
+ */
+ synchronize_rcu();
i40e_clean_tx_ring(vsi->xdp_rings[i]);
+ }
i40e_clean_rx_ring(vsi->rx_rings[i]);
}
@@ -11895,6 +11903,14 @@ static int i40e_xdp_setup(struct i40e_vsi *vsi,
if (old_prog)
bpf_prog_put(old_prog);
+ /* Kick start the NAPI context if there is an AF_XDP socket open
+ * on that queue id. This so that receiving will start.
+ */
+ if (need_reset && prog)
+ for (i = 0; i < vsi->num_queue_pairs; i++)
+ if (vsi->xdp_rings[i]->xsk_umem)
+ (void)i40e_xsk_async_xmit(vsi->netdev, i);
+
return 0;
}
@@ -11955,8 +11971,13 @@ static void i40e_queue_pair_reset_stats(struct i40e_vsi *vsi, int queue_pair)
static void i40e_queue_pair_clean_rings(struct i40e_vsi *vsi, int queue_pair)
{
i40e_clean_tx_ring(vsi->tx_rings[queue_pair]);
- if (i40e_enabled_xdp_vsi(vsi))
+ if (i40e_enabled_xdp_vsi(vsi)) {
+ /* Make sure that in-progress ndo_xdp_xmit calls are
+ * completed.
+ */
+ synchronize_rcu();
i40e_clean_tx_ring(vsi->xdp_rings[queue_pair]);
+ }
i40e_clean_rx_ring(vsi->rx_rings[queue_pair]);
}