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

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Use the two functions: fdma_alloc_phys() and fdma_dcb_init() for tx
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: tx->dma, tx->first_entry and tx->curr_entry
      with the equivalents from the FDMA struct.

    - replace uses of sparx5_db_hw and sparx5_tx_dcb_hw with fdma_db and
      fdma_dcb.

    - add sparx5_fdma_tx_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>

...

This commit is contained in:

Daniel Machon 2024-09-02 16:54:13 +02:00 • committed by David S. Miller

parent 4ff58c3947

commit 0a5c440850

2 changed files with 44 additions and 64 deletions

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94

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

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14

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

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