1*4882a593SmuzhiyunWhat: /sys/module/xen_blkfront/parameters/max_indirect_segments 2*4882a593SmuzhiyunDate: June 2013 3*4882a593SmuzhiyunKernelVersion: 3.11 4*4882a593SmuzhiyunContact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 5*4882a593SmuzhiyunDescription: 6*4882a593Smuzhiyun Maximum number of segments that the frontend will negotiate 7*4882a593Smuzhiyun with the backend for indirect descriptors. The default value 8*4882a593Smuzhiyun is 32 - higher value means more potential throughput but more 9*4882a593Smuzhiyun memory usage. The backend picks the minimum of the frontend 10*4882a593Smuzhiyun and its default backend value. 11*4882a593Smuzhiyun 12*4882a593SmuzhiyunWhat: /sys/module/xen_blkfront/parameters/feature_persistent 13*4882a593SmuzhiyunDate: September 2020 14*4882a593SmuzhiyunKernelVersion: 5.10 15*4882a593SmuzhiyunContact: SeongJae Park <sjpark@amazon.de> 16*4882a593SmuzhiyunDescription: 17*4882a593Smuzhiyun Whether to enable the persistent grants feature or not. Note 18*4882a593Smuzhiyun that this option only takes effect on newly connected frontends. 19*4882a593Smuzhiyun The default is Y (enable). 20