Some of NICs can allow a DPDK application to select the RSS level to perform RSS hash on an incoming encapsulated packets. But it is not possible to set this currently because rte_eth_rss_conf does not have any field to indicate the RSS level while specifying RSS configuration parameters.
This patchset extends rte_eth_rss_conf by adding rss_level. An application can specify the RSS level based on the packet encapsulation level and apply the setting to the specified device. - rss_level of 0 requests the default behavior. - rss_level of 1 requests RSS to be performed on the outermost packet encapsulation level. - rss_level of 2 and subsequent values request RSS to be performed on the specified inner packet encapsulation level, from outermost to innermost. Patch 1/3 extends rte_ethdev.h to add this support. Patch 2/3 has modifications to testpmd to use this feature. Patch 3/3 has bnxt modifications to configure rss_level based on the settings passed by the application. Please review. Ajit Khaparde (3): ethdev: add RSS hash level app/testpmd: support RSS hash level setting net/bnxt: add support to set RSS hash level app/test-pmd/cmdline.c | 187 +++++++++++++++++++++++++++++++++ app/test-pmd/config.c | 7 ++ app/test-pmd/parameters.c | 6 +- app/test-pmd/testpmd.c | 8 ++ app/test-pmd/testpmd.h | 1 + drivers/net/bnxt/bnxt.h | 1 + drivers/net/bnxt/bnxt_ethdev.c | 7 ++ drivers/net/bnxt/bnxt_hwrm.c | 9 +- drivers/net/bnxt/bnxt_rxq.c | 3 + drivers/net/bnxt/bnxt_vnic.c | 75 +++++++++++++ drivers/net/bnxt/bnxt_vnic.h | 4 + lib/librte_ethdev/rte_ethdev.h | 27 +++++ 12 files changed, 332 insertions(+), 3 deletions(-) -- 2.21.0 (Apple Git-122.2)
