mlxsw: spectrum: Add IEEE 802.1Qaz ETS support

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Implement the appropriate DCB ops and allow a user to configure:
	* Priority to traffic class (TC) mapping with a total of 8
	  supported TCs
	* Transmission selection algorithm (TSA) for each TC and the
	  corresponding weights in case of weighted round robin (WRR)

As previously explained, we treat the priority group (PG) buffer in the
port's headroom as the ingress counterpart of the egress TC. Therefore,
when a certain priority to TC mapping is configured, we also configure
the port's headroom buffer.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Ido Schimmel 2016-04-06 17:10:10 +02:00 • committed by David S. Miller

parent f00817df2b

commit 8e8dfe9fdf

3 changed files with 283 additions and 10 deletions

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53

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

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11

drivers/net/ethernet/mellanox/mlxsw/spectrum.h

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229

drivers/net/ethernet/mellanox/mlxsw/spectrum_dcb.c

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