@@ -130,10 +130,11 @@ it is deployed. Subfunction is created and deployed in unit of 1. Unlike
SRIOV VFs, a subfunction doesn't require its own PCI virtual function.
A subfunction communicates with the hardware through the parent PCI function.
-To use a subfunction, 3 steps setup sequence is followed.
-(1) create - create a subfunction;
-(2) configure - configure subfunction attributes;
-(3) deploy - deploy the subfunction;
+To use a subfunction, 3 steps setup sequence is followed:
+
+1) create - create a subfunction;
+2) configure - configure subfunction attributes;
+3) deploy - deploy the subfunction;
Subfunction management is done using devlink port user interface.
User performs setup on the subfunction management device.
@@ -216,13 +217,17 @@ nodes with the same priority form a WFQ subgroup in the sibling group
and arbitration among them is based on assigned weights.
Arbitration flow from the high level:
+
#. Choose a node, or group of nodes with the highest priority that stays
within the BW limit and are not blocked. Use ``tx_priority`` as a
parameter for this arbitration.
+
#. If group of nodes have the same priority perform WFQ arbitration on
that subgroup. Use ``tx_weight`` as a parameter for this arbitration.
+
#. Select the winner node, and continue arbitration flow among it's children,
until leaf node is reached, and the winner is established.
+
#. If all the nodes from the highest priority sub-group are satisfied, or
overused their assigned BW, move to the lower priority nodes.
kernel test robot reported indentation warnings: Documentation/networking/devlink/devlink-port.rst:220: WARNING: Unexpected indentation. Documentation/networking/devlink/devlink-port.rst:222: WARNING: Block quote ends without a blank line; unexpected unindent. These warnings cause lists (arbitration flow for which the warnings blame to and 3-step subfunction setup) to be rendered inline instead. Also, for the former list, automatic list numbering is messed up. Fix these warnings by adding missing blank line padding. Link: https://lore.kernel.org/linux-doc/202211200926.kfOPiVti-lkp@intel.com/ Fixes: 242dd64375b80a ("Documentation: Add documentation for new devlink-rate attributes") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> --- Documentation/networking/devlink/devlink-port.rst | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) base-commit: 8bd8dcc5e47f0f9dc40187c3b8b42d992181eee1