Min Miles Xu wrote: > > I just did a tests on an e1000g machine, and found m_getcapab() was > called when unplumbing/plumbing. So the current drivers should at > least support HW checksum, LSO on/off through unplumbing/plumbing. I just did an experiment with verbose outputs of m_getcapab().
first plumb: e1000g: [ID 801725 kern.warning] WARNING: pci8086,1011 - e1000g[1] : cap is: 0x800 e1000g: [ID 801725 kern.warning] WARNING: pci8086,1011 - e1000g[1] : cap is: 0x400 e1000g: [ID 801725 kern.warning] WARNING: pci8086,1011 - e1000g[1] : cap is: 0x2 e1000g: [ID 801725 kern.warning] WARNING: pci8086,1011 - e1000g[1] : cap is: 0x100 <----HW checksum e1000g: [ID 801725 kern.warning] WARNING: pci8086,1011 - e1000g[1] : cap is: 0x10 e1000g: [ID 801725 kern.warning] WARNING: pci8086,1011 - e1000g[1] : cap is: 0x200<---- LSO replumb: e1000g: [ID 801725 kern.warning] WARNING: pci8086,1011 - e1000g[1] : cap is: 0x2 It seems that the upper layer won't retrieve HW checksum and LSO capabilities again if we replumb the interface. So the stack should be adjusted. Miles Xu
