Under some circumstances, IPA generates a "packet status" structure that describes information about a packet. This is used, for example, when offload hardware detects an error in a packet, or otherwise discovers a packet needs special handling. In this case, the status is delivered (along with the packet it describes) to a "default" endpoint so that it can be handled by the AP. Until now, the structure of this status information hasn't changed. However, to support more than 32 endpoints, this structure required some changes, such that some fields are rearranged in ways that are tricky to represent using C code. This series updates code related to the IPA status structure. The first patch uses a local variable to avoid recomputing a packet length more than once. The second stops using sizeof() to determine the size of an IPA packet status structure. Patches 3-5 extend the definitions for values held in packet status fields. Patch 6 does a little general cleanup to make patch 7 simpler. Patch 7 stops using a C structure to represent packet status; instead, a new function fetches values "by name" from a buffer containing such a structure. The last patch updates this function so it also supports IPA v5.0+. -Alex Alex Elder (8): net: ipa: refactor status buffer parsing net: ipa: stop using sizeof(status) net: ipa: define all IPA status mask bits net: ipa: rename the NAT enumerated type net: ipa: define remaining IPA status field values net: ipa: IPA status preparatory cleanups net: ipa: introduce generalized status decoder net: ipa: add IPA v5.0 packet status support drivers/net/ipa/ipa_endpoint.c | 280 +++++++++++++++++++++++++-------- drivers/net/ipa/ipa_reg.h | 10 +- 2 files changed, 217 insertions(+), 73 deletions(-) -- 2.34.1
