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gve: add netmem TX support to GVE DQO-RDA mode

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Use netmem_dma_*() helpers in gve_tx_dqo.c DQO-RDA paths to
enable netmem TX support in that mode.

Declare support for netmem TX in GVE DQO-RDA mode.

Signed-off-by: Mina Almasry <almasrymina@google.com>
Acked-by: Harshitha Ramamurthy <hramamurthy@google.com>
Link: https://patch.msgid.link/20250508004830.4100853-8-almasrymina@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Mina Almasry 2025-05-08 00:48:27 +00:00 committed by Paolo Abeni
parent 383faec0fd
commit c32532670c
2 changed files with 8 additions and 3 deletions
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3
drivers/net/ethernet/google/gve/gve_main.c
View File

@ -2659,6 +2659,9 @@ static int gve_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (err)
goto abort_with_wq;
if (!gve_is_gqi(priv) && !gve_is_qpl(priv))
dev->netmem_tx = true;
err = register_netdev(dev);
if (err)
goto abort_with_gve_init;

8
drivers/net/ethernet/google/gve/gve_tx_dqo.c
View File

@ -660,7 +660,8 @@ static int gve_tx_add_skb_no_copy_dqo(struct gve_tx_ring *tx,
goto err;
dma_unmap_len_set(pkt, len[pkt->num_bufs], len);
dma_unmap_addr_set(pkt, dma[pkt->num_bufs], addr);
netmem_dma_unmap_addr_set(skb_frag_netmem(frag), pkt,
dma[pkt->num_bufs], addr);
++pkt->num_bufs;
gve_tx_fill_pkt_desc_dqo(tx, desc_idx, skb, len, addr,
@ -1038,8 +1039,9 @@ static void gve_unmap_packet(struct device *dev,
dma_unmap_single(dev, dma_unmap_addr(pkt, dma[0]),
dma_unmap_len(pkt, len[0]), DMA_TO_DEVICE);
for (i = 1; i < pkt->num_bufs; i++) {
dma_unmap_page(dev, dma_unmap_addr(pkt, dma[i]),
dma_unmap_len(pkt, len[i]), DMA_TO_DEVICE);
netmem_dma_unmap_page_attrs(dev, dma_unmap_addr(pkt, dma[i]),
dma_unmap_len(pkt, len[i]),
DMA_TO_DEVICE, 0);
}
pkt->num_bufs = 0;
}