K 10
svn:author
V 5
markj
K 8
svn:date
V 27
2021-01-25T14:22:11.323096Z
K 7
svn:log
V 550
safexcel: Simplify request allocation

Rather than preallocating a set of requests and moving them between
queues during state transitions, maintain a shadow of the command
descriptor ring to track the driver context of each request.  This is
simpler and requires less synchronization between safexcel_process() and
the ring interrupt handler.

Sponsored by:	Rubicon Communications, LLC (Netgate)

(cherry picked from commit 1a6ffed5d73a22858182e68e629662afda1b9f6d)

Git Hash:   5071cbacfb343f024bc1c9969aa43d20daa8241a
Git Author: markj@FreeBSD.org
END