diff options
| author | Catherine Sullivan <csully@google.com> | 2020-12-07 14:45:26 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-12-08 16:06:28 -0800 |
| commit | 6f007c6486d69967ac1d9e67df9ae9c77d49f1cc (patch) | |
| tree | fcaa4784b3e2541ffa6319c37a2040e4ae3265c3 /drivers/net/ethernet/google/gve/gve_adminq.c | |
| parent | 02b0e0c18ba75227e0482600950c6abe71ace30f (diff) | |
gve: Add support for raw addressing in the tx path
During TX, skbs' data addresses are dma_map'ed and passed to the NIC.
This means that the device can perform DMA directly from these addresses
and the driver does not have to copy the buffer content into
pre-allocated buffers/qpls (as in qpl mode).
Reviewed-by: Yangchun Fu <yangchun@google.com>
Signed-off-by: Catherine Sullivan <csully@google.com>
Signed-off-by: David Awogbemila <awogbemila@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/google/gve/gve_adminq.c')
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve_adminq.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/google/gve/gve_adminq.c b/drivers/net/ethernet/google/gve/gve_adminq.c index a1b9370db1e4..53864f200599 100644 --- a/drivers/net/ethernet/google/gve/gve_adminq.c +++ b/drivers/net/ethernet/google/gve/gve_adminq.c @@ -369,8 +369,10 @@ static int gve_adminq_create_tx_queue(struct gve_priv *priv, u32 queue_index) { struct gve_tx_ring *tx = &priv->tx[queue_index]; union gve_adminq_command cmd; + u32 qpl_id; int err; + qpl_id = priv->raw_addressing ? GVE_RAW_ADDRESSING_QPL_ID : tx->tx_fifo.qpl->id; memset(&cmd, 0, sizeof(cmd)); cmd.opcode = cpu_to_be32(GVE_ADMINQ_CREATE_TX_QUEUE); cmd.create_tx_queue = (struct gve_adminq_create_tx_queue) { @@ -379,7 +381,7 @@ static int gve_adminq_create_tx_queue(struct gve_priv *priv, u32 queue_index) .queue_resources_addr = cpu_to_be64(tx->q_resources_bus), .tx_ring_addr = cpu_to_be64(tx->bus), - .queue_page_list_id = cpu_to_be32(tx->tx_fifo.qpl->id), + .queue_page_list_id = cpu_to_be32(qpl_id), .ntfy_id = cpu_to_be32(tx->ntfy_id), }; |