This series contains updates to mqprio and i40e. Amritha introduces a new hardware offload mode in tc/mqprio where the TCs, the queue configurations and bandwidth rate limits are offloaded to the hardware. The existing mqprio framework is extended to configure the queue counts and layout and also added support for rate limiting. This is achieved through new netlink attributes for the 'mode' option which takes values such as 'dcb' (default) and 'channel' and a 'shaper' option for QoS attributes such as bandwidth rate limits in hw mode 1. Legacy devices can fall back to the existing setup supporting hw mode 1 without these additional options where only the TCs are offloaded and then the 'mode' and 'shaper' options defaults to DCB support. The i40e driver enables the new mqprio hardware offload mechanism factoring the TCs, queue configuration and bandwidth rates by creating HW channel VSIs. In this new mode, the priority to traffic class mapping and the user specified queue ranges are used to configure the traffic class when the 'mode' option is set to 'channel'. This is achieved by creating HW channels(VSI). A new channel is created for each of the traffic class configuration offloaded via mqprio framework except for the first TC (TC0) which is for the main VSI. TC0 for the main VSI is also reconfigured as per user provided queue parameters. Finally, bandwidth rate limits are set on these traffic classes through the shaper attribute by sending these rates in addition to the number of TCs and the queue configurations.
Colin Ian King makes an array of constant values "constant". Alan fixes and issue where on some firmware versions, we were failing to actually fill out the phy_types which caused ethtool to not report any link types. Also hardened against a potentially malicious VF by not letting the VF to reset itself after requesting to change the number of queues (via ethtool), let the PF reset the VF to institute the requested changes. The following are changes since commit a00344bd1bbea2ba40719ae0eb3b6da7fae08cf2: Merge branch 'tipc-comm-groups' and are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue 40GbE Alan Brady (2): i40e: fix link reporting i40e/i40evf: don't trust VF to reset itself Amritha Nambiar (6): mqprio: Introduce new hardware offload mode and shaper in mqprio i40e: Add macro for PF reset bit i40e: Add infrastructure for queue channel support i40e: Enable 'channel' mode in mqprio for TC configs i40e: Refactor VF BW rate limiting i40e: Add support setting TC max bandwidth rates Colin Ian King (1): i40e: make const array patterns static, reduces object code size drivers/net/ethernet/intel/i40e/i40e.h | 44 + drivers/net/ethernet/intel/i40e/i40e_common.c | 7 +- drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 3 +- drivers/net/ethernet/intel/i40e/i40e_diag.c | 4 +- drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 8 +- drivers/net/ethernet/intel/i40e/i40e_main.c | 1462 +++++++++++++++++--- drivers/net/ethernet/intel/i40e/i40e_txrx.h | 2 + drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 59 +- .../net/ethernet/intel/i40evf/i40evf_virtchnl.c | 7 +- include/linux/avf/virtchnl.h | 4 +- include/net/pkt_cls.h | 9 + include/uapi/linux/pkt_sched.h | 32 + net/sched/sch_mqprio.c | 183 ++- 13 files changed, 1571 insertions(+), 253 deletions(-) -- 2.14.2
