On 7/2/2019 3:12 PM, Bruce Richardson wrote: > This patch series adds support for the Intel QuickData Technology > device, part of the Intel I/O Acceleration Technology (Intel I/OAT). It > is a raw device for allowing hardware DMA i.e. data copies in hardware. > > Performing the copies in hardware can provide performance improvements > for applications where the average copy size is reasonably large, e.g. > 1k packets. For smaller packets, e.g. 64-256 bytes, offloading the copy > may reduce performance due to the overhead of using hardware. > > V5: > * updated doxygen comment for internal rawdev pmd API > > V4: > * changed memory management to use contiguous memzones instead of > malloc memory > * added missing device ids for BDX platforms > * other misc cleanup following review (see individual patches logs) > > V3: > * removed DPDK-specific structure for the descriptor format and reused > the structure in the imported file rte_ioat_spec.h > > V2: > * moved tests to rawdev selftest function > * some checkpatch and other small cleanups > * added extra documentation details on supported hardware > * aligned the changes to dpdk-devbind with the changes in the NTB set > for consistency > > > Bruce Richardson (9): > rawdev: allow devices to skip extra memory allocation > raw/ioat: add initial support for ioat rawdev driver > usertools/dpdk-devbind.py: add support for IOAT devices > raw/ioat: add register definition file > raw/ioat: create device on probe and destroy on release > raw/ioat: add device info function > raw/ioat: add configure, start and stop functions > raw/ioat: add statistics functions > raw/ioat: add local API to perform copies
Hi Bruce, Thomas, Getting following build error with icc, both for 32-bit & 64-bit: .../dpdk/drivers/raw/ioat/ioat_rawdev_test.c(28): (col. 9) error #13203: No EMMS instruction before call to function
