octeontx2-pf: Add egress PFC support

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As of now all transmit queues transmit packets out of same scheduler
queue hierarchy. Due to this PFC frames sent by peer are not handled
properly, either all transmit queues are backpressured or none.
To fix this when user enables PFC for a given priority map relavant
transmit queue to a different scheduler queue hierarcy, so that
backpressure is applied only to the traffic egressing out of that TXQ.

Signed-off-by: Suman Ghosh <sumang@marvell.com>
Link: https://lore.kernel.org/r/20220830120304.158060-1-sumang@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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This commit is contained in:

Suman Ghosh 2022-08-30 17:33:04 +05:30 • committed by Paolo Abeni

parent a102c8973d

commit 99c969a83d

5 changed files with 427 additions and 17 deletions

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3

drivers/net/ethernet/marvell/octeontx2/nic/cn10k.c

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59

drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c

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28

drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h

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300

drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c

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54

drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c

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