diff options
| author | David Awogbemila <awogbemila@google.com> | 2021-10-24 21:42:37 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-10-25 16:13:12 +0300 |
| commit | 37149e9374bf7271563f7477ace9014ebc65a8af (patch) | |
| tree | 05877f2c1e56b83ed4c49a87aa2487897f11ee9c /drivers/net/ethernet/google/gve/gve_main.c | |
| parent | 1344e751e91092ac0cb63b194621e59d2f364197 (diff) | |
| download | linux-37149e9374bf7271563f7477ace9014ebc65a8af.tar.xz | |
gve: Implement packet continuation for RX.
This enables the driver to receive RX packets spread across multiple
buffers:
For a given multi-fragment packet the "packet continuation" bit is set
on all descriptors except the last one. These descriptors' payloads are
combined into a single SKB before the SKB is handed to the
networking stack.
This change adds a "packet buffer size" notion for RX queues. The
CreateRxQueue AdminQueue command sent to the device now includes the
packet_buffer_size.
We opt for a packet_buffer_size of PAGE_SIZE / 2 to give the
driver the opportunity to flip pages where we can instead of copying.
Signed-off-by: David Awogbemila <awogbemila@google.com>
Signed-off-by: Jeroen de Borst <jeroendb@google.com>
Reviewed-by: Catherine Sullivan <csully@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/google/gve/gve_main.c')
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve_main.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c index 7647cd05b1d2..6b02ef432eda 100644 --- a/drivers/net/ethernet/google/gve/gve_main.c +++ b/drivers/net/ethernet/google/gve/gve_main.c @@ -1371,14 +1371,6 @@ static int gve_init_priv(struct gve_priv *priv, bool skip_describe_device) "Could not get device information: err=%d\n", err); goto err; } - if (gve_is_gqi(priv) && priv->dev->max_mtu > PAGE_SIZE) { - priv->dev->max_mtu = PAGE_SIZE; - err = gve_adminq_set_mtu(priv, priv->dev->mtu); - if (err) { - dev_err(&priv->pdev->dev, "Could not set mtu"); - goto err; - } - } priv->dev->mtu = priv->dev->max_mtu; num_ntfy = pci_msix_vec_count(priv->pdev); if (num_ntfy <= 0) { |