lkml.org 
[lkml]   [2017]   [Sep]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: DMA error when sg->offset value is greater than PAGE_SIZE in Intel IOMMU
Date
| From: Robin Murphy <robin.murphy@arm.com>
| Sent: Wednesday, September 27, 2017 10:18 AM
|
| From my experience, in general terms each scatterlist segment
| represents some contiguous quantity of pages, of which sg->page is the
| first, while sg->length and sg->offset describe the specific bounds of
| that segment's data. ...

Okay, thanks Robin. That'll help me in my reviews of your and Ashok's
suggested changes to the Intel I/O MMU __domain_mapping() routine.

Casey
\
 
 \ /
  Last update: 2017-09-27 19:31    [W:0.130 / U:1.612 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site