summaryrefslogtreecommitdiff
path: root/sound/soc/sh
diff options
context:
space:
mode:
authorAmritha Nambiar <amritha.nambiar@intel.com>2017-09-07 04:00:22 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2017-10-13 14:06:37 -0700
commita9ce82f744dc401ec27c787e2eacf3bbb33565ec (patch)
treedac2a2b68724893f22e68fe4887f0c3a2381da17 /sound/soc/sh
parent8f88b3034db3be2eb600b9f57012bc63f1ea197f (diff)
downloadlinux-a9ce82f744dc401ec27c787e2eacf3bbb33565ec.tar.gz
i40e: Enable 'channel' mode in mqprio for TC configs
The i40e driver is modified to enable the new mqprio hardware offload mode and factor the TCs and queue configuration by creating channel VSIs. In this mode, the priority to traffic class mapping and the user specified queue ranges are used to configure the traffic classes by setting the mode option to 'channel'. Example: map 0 0 0 0 1 2 2 3 queues 2@0 2@2 1@4 1@5\ hw 1 mode channel qdisc mqprio 8038: root tc 4 map 0 0 0 0 1 2 2 3 0 0 0 0 0 0 0 0 queues:(0:1) (2:3) (4:4) (5:5) mode:channel shaper:dcb The HW channels created are removed and all the queue configuration is set to default when the qdisc is detached from the root of the device. This patch also disables setting up channels via ethtool (ethtool -L) when the TCs are configured using mqprio scheduler. The patch also limits setting ethtool Rx flow hash indirection (ethtool -X eth0 equal N) to max queues configured via mqprio. The Rx flow hash indirection input through ethtool should be validated so that it is within in the queue range configured via tc/mqprio. The bound checking is achieved by reporting the current rss size to the kernel when queues are configured via mqprio. Example: map 0 0 0 1 0 2 3 0 queues 2@0 4@2 8@6 11@14\ hw 1 mode channel Cannot set RX flow hash configuration: Invalid argument Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'sound/soc/sh')
0 files changed, 0 insertions, 0 deletions