Commit c3253267 authored by Mina Almasry's avatar Mina Almasry Committed by Paolo Abeni
Browse files

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



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: default avatarMina Almasry <almasrymina@google.com>
Acked-by: default avatarHarshitha Ramamurthy <hramamurthy@google.com>
Link: https://patch.msgid.link/20250508004830.4100853-8-almasrymina@google.com


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 383faec0

drivers/net/ethernet/google/gve/gve_main.c

+3 −0
Original line number Diff line number Diff line
@@ -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;

drivers/net/ethernet/google/gve/gve_tx_dqo.c

+5 −3
Original line number Diff line number Diff line
@@ -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;

}