From: Daniel Thompson > Sent: 10 December 2020 17:32 > > On Mon, Jun 29, 2020 at 06:47:11PM +0000, Ioana Ciornei wrote: > > Instead of realloc-ing the skb on the Tx path when the provided headroom > > is smaller than the HW requirements, create a Scatter/Gather frame > > descriptor with only one entry.
Is it worth simplifying the code by permanently allocating (and dma-mapping) the extra structure for every ring entry. It is (probably) only one page and 1 iommu entry. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)