net: sparx5: use the FDMA library for allocation of rx buffers

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Use the two functions: fdma_alloc_phys() and fdma_dcb_init() for rx
buffer allocation and use the new buffers throughout.

In order to replace the old buffers with the new ones, we have to do the
following refactoring:

    - use fdma_alloc_phys() and fdma_dcb_init()

    - replace the variables: rx->dma, rx->dcb_entries and rx->last_entry
      with the equivalents from the FDMA struct.

    - replace uses of sparx5_db_hw and sparx5_rx_dcb_hw with fdma_db and
      fdma_dcb.

    - add sparx5_fdma_rx_dataptr_cb callback for obtaining the dataptr.

    - Initialize FDMA struct values.

Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Jens Emil Schulz Østergaard <jensemil.schulzostergaard@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Daniel Machon 2024-09-02 16:54:09 +02:00 • committed by David S. Miller

parent e8218f7a9f

commit 8fec1cea94

2 changed files with 43 additions and 54 deletions

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89

drivers/net/ethernet/microchip/sparx5/sparx5_fdma.c

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8

drivers/net/ethernet/microchip/sparx5/sparx5_main.h

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