gve: Add support for raw addressing to the rx path

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Add support to use raw dma addresses in the rx path. Due to this new
support we can alloc a new buffer instead of making a copy.

RX buffers are handed to the networking stack and are
re-allocated as needed, avoiding the need to use
skb_copy_to_linear_data() 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>

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Catherine Sullivan 2020-12-07 14:45:24 -08:00 • committed by David S. Miller

parent 4944db80ac

commit ede3fcf5ec

5 changed files with 182 additions and 62 deletions

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12

drivers/net/ethernet/google/gve/gve.h

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14

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

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11

drivers/net/ethernet/google/gve/gve_desc.h

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2

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

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205

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

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