Hi Doug, This series from Majd adds 'Scatter FCS support' for libibverbs. You already accepted the kernel part for coming kernel 4.7. The series was tested successfully with mlx5 driver (lib, kernel) and can be accessed also from my openfabrics GIT at: git://openfabrics.org/~yishaih/libibverbs.git branch: fcs It exists also on top of V2 timestamp series that we just sent, for that the 'for-upstream' branch should be used. Thanks, Yishai Frame Check Sequence(FCS) is an error detecting code that terminates an Ethernet frame. When using Raw Ethernet, users sometimes want to validate the FCS themselves, and therefore it should be scattered to the receive buffers. This series adds the above support. The user can control scattering the FCS using Queue-Pair(QP) creation flag called IBV_QP_CREATE_SCATTER_FCS. Also, to report this new device capability, we had to add a new device capability flags in the uverbs response called device_cap_flags_ex, since all the current device_cap_flags are occupied. device_cap_flags_ex 0-31 bits are identical to the legacy device_cap_flags, and the upper 32 bits (32-63 bits) report new extended device capabilities. Devices that support scattering the FCS should report it in device_cap_flags_ex using IBV_DEVICE_RAW_SCATTER_FCS. Majd Dibbiny (3): Extend devinfo verbosity mode Add extended device capability flags Add SCATTER_FCS QP create flag examples/devinfo.c | 96 +++++++++++++++++++++++++++++++++++++++++++ include/infiniband/kern-abi.h | 2 + include/infiniband/verbs.h | 8 ++++ man/ibv_query_device_ex.3 | 1 + src/cmd.c | 13 +++++- 5 files changed, 119 insertions(+), 1 deletion(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
