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authorBilly McFall <bmcfall@redhat.com>2017-02-22 14:13:42 -0500
committerDamjan Marion <dmarion.lists@gmail.com>2017-02-24 09:21:31 +0000
commit04197eea69c77a0145dc54d56fc767a03897c90e (patch)
treef45004fe682e7029d7d0009c242b71750b31f206 /src/vnet/api_errno.h
parent4a3f69c17f26e9790db26d0910befe36b5e9f85f (diff)
VPP-279: Document changes for vnet/vnet/devices
Add doxygen documentation for dpdk CLI commands. Outside of adding documentation to the CLI Commands, modified the CLI code as follows: * The "set dpdk interface placement" command allows the user to move interface/queues to a different thread. But there is only a subset of threads that are valid. Updated the "show dpdk interface placement" command to display all valid threads, even if all interface/queues have been moved off. Updated the "show dpdk interface hqos placement" the same way. * There is a command to modify the Subport attributes, but no way to display the changes. Added a "Subport" section to the "show dpdk interface hqos" command. * Reworked the "set dpdk interface hqos subport" command. - The current implementation had a local rte_sched_subport_params structure and initialized it to default values, then overwrote with what was input. The side effect of this is that if all the current data is non-default, and a new command is entered with just one attribute, all the remaining attrbutes are getting set back to default under the cover. Very confusing for the user. Updated the code to read the current value and overwrite what has changed. - DPDK does not have a read subport data, so no way query the current applied values. The set command was not updating the local copy that is created at init. Modified the code to store the updated values if the DPDK apply function was successful. - Several functions repeated the same code to get a pointer to the local HQoS data. Added a utility function.get_hqos(..), to perform this action. Did not port other code to use new function. * The "set dpdk interface hqos pktfield" allows the user to set the packet fields required for classifiying the incoming packet. The classification is across three fields (subport, pipe, tc). The command was using 0,1,2 to represent these three fields, but had no explanation regarding these magic numbers. Updated the command to take the three tokens (subport, pipe, tc) for more clarity. For legacy sake, still allow 0,1,2 to be entered. Also updated the "show dpdk interface hqos" command to show these tokens. * The "set dpdk interface hqos tctbl" maps an interface and value 0-63 to a traffic class and queue. The "show dpdk interface hqos" command showed the internal DPDK magic number for traffic class and queue. Updated the show command to display what was input instead of the magic number. * The "show dpdk hqos queue" command always returns zeros by default because RTE_SCHED_COLLECT_STATS is not defined in DPDK. Took me a while to figure out why I wasn't getting values returned. So returned an error message if RTE_SCHED_COLLECT_STATS is not defined instead of zeros. Change-Id: I22b640d668245839ee977ef3602175c61d91d24c Signed-off-by: Billy McFall <bmcfall@redhat.com>
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