Re: [dpdk-dev] [RFC v2] mlx5/net: hint PMD not to inline packet

2019-12-27 Thread Olivier Matz
Hi Viacheslav, On Wed, Dec 11, 2019 at 05:01:33PM +, Viacheslav Ovsiienko wrote: > Some PMDs inline the mbuf data buffer directly to device transmit descriptor. > This is in order to save the overhead of the PCI headers imposed when the > device DMA reads the data by buffer pointer. For some d

[dpdk-dev] [RFC v2] mlx5/net: hint PMD not to inline packet

2019-12-11 Thread Viacheslav Ovsiienko
Some PMDs inline the mbuf data buffer directly to device transmit descriptor. This is in order to save the overhead of the PCI headers imposed when the device DMA reads the data by buffer pointer. For some devices it is essential in order to provide the full bandwidth. However, there are cases whe