net: mvpp2: add FCA RXQ non occupied descriptor threshold

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The firmware needs to monitor the RX Non-occupied descriptor
bits for flow control to move to XOFF mode.
These bits need to be unmasked to be functional, but they will
not raise interrupts as we leave the RX exception summary
bit in MVPP2_ISR_RX_TX_MASK_REG clear.

Signed-off-by: Stefan Chulski <stefanc@marvell.com>
Acked-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

Stefan Chulski 2021-02-11 12:48:55 +02:00 • committed by David S. Miller

parent 2788d8418a

commit bf270fa3c4

2 changed files with 40 additions and 7 deletions

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3

drivers/net/ethernet/marvell/mvpp2/mvpp2.h

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44

drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c

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