net: mvneta: introduce page pool API for sw buffer manager

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Use the page_pool api for allocations and DMA handling instead of
__dev_alloc_page()/dma_map_page() and free_page()/dma_unmap_page().
Pages are unmapped using page_pool_release_page before packets
go into the network stack.

The page_pool API offers buffer recycling capabilities for XDP but
allocates one page per packet, unless the driver splits and manages
the allocated page.
This is a preliminary patch to add XDP support to mvneta driver

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Lorenzo Bianconi 2019-10-19 10:13:22 +02:00 • committed by David S. Miller

parent ff519e2acd

commit 568a3fa24a

2 changed files with 65 additions and 19 deletions

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1

drivers/net/ethernet/marvell/Kconfig

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83

drivers/net/ethernet/marvell/mvneta.c

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