diff options
| author | Rushil Gupta <rushilg@google.com> | 2023-08-04 21:34:43 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-08-06 08:34:36 +0100 |
| commit | e7075ab4fb6b39730dfbfbfa3a5505d678f01d2c (patch) | |
| tree | a934e5b111865ca5f53d0f8c8e92c04689063b68 /drivers/net/ethernet/google/gve/gve.h | |
| parent | a6fb8d5a8b6925f1e635818d3dd2d89531d4a058 (diff) | |
gve: RX path for DQO-QPL
The RX path allocates the QPL page pool at queue creation, and
tries to reuse these pages through page recycling. This patch
ensures that on refill no non-QPL pages are posted to the device.
When the driver is running low on free buffers, an ondemand
allocation step kicks in that allocates a non-qpl page for
SKB business to free up the QPL page in use.
gve_try_recycle_buf was moved to gve_rx_append_frags so that driver does
not attempt to mark buffer as used if a non-qpl page was allocated
ondemand.
Signed-off-by: Rushil Gupta <rushilg@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Praveen Kaligineedi <pkaligineedi@google.com>
Signed-off-by: Bailey Forrest <bcf@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/google/gve/gve.h')
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/google/gve/gve.h b/drivers/net/ethernet/google/gve/gve.h index 2042f79cea1f..0d1e681be250 100644 --- a/drivers/net/ethernet/google/gve/gve.h +++ b/drivers/net/ethernet/google/gve/gve.h @@ -241,6 +241,12 @@ struct gve_rx_ring { /* qpl assigned to this queue */ struct gve_queue_page_list *qpl; + + /* index into queue page list */ + u32 next_qpl_page_idx; + + /* track number of used buffers */ + u16 used_buf_states_cnt; } dqo; }; |