net: lan966x: 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->dcbs and rx->last_entry
      with the equivalents from the FDMA struct.

    - make use of fdma->db_size for rx buffer size.

    - add lan966x_fdma_rx_dataptr_cb callback for obtaining the dataptr.

    - Initialize FDMA struct values.

Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

...

This commit is contained in:

Daniel Machon 2024-09-05 10:06:32 +02:00 • committed by Paolo Abeni

parent 8274d40eaf

commit 01a7075432

2 changed files with 55 additions and 76 deletions

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116

drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c

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15

drivers/net/ethernet/microchip/lan966x/lan966x_main.h

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