kernel-ark/drivers/usb/host
Dan Streetman ba47f66bd9 [PATCH] improved TT scheduling for EHCI
This updates the EHCI driver by adding an improved scheduler for the
transaction translators, found in USB 2.0 hubs and used for low and
full speed devices.

 - adds periodic_tt_usecs() and some helper functions, which does
   the same thing that "periodic_usecs" does, except on the other
   side of the TT, i.e.  it calculates the low/fullspeed bandwidth
   usage instead of highspeed.

 - adds a tt_available() function which is the new implementation
   of what tt_no_collision() does ... while tt_no_collision() ensures
   that each TT handles only 1 periodic transfer at a time (a very
   pessimistic approach) this version instead tracks bandwidth and
   allows each TT to handle as many transfers as will fit on each TT's
   downstream bus (closer to best-case).

The new scheduler is selected by a config option, marked as EXPERIMENTAL
so it can be tested (and more broadly reviewed) for a while until it
seems safe to remove the original scheduler.

Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-21 15:04:13 -07:00
..
ehci-au1xxx.c [PATCH] USB: allow multiple types of EHCI controllers to be built as modules 2006-06-21 15:04:09 -07:00
ehci-dbg.c
ehci-fsl.c [PATCH] USB: allow multiple types of EHCI controllers to be built as modules 2006-06-21 15:04:09 -07:00
ehci-fsl.h
ehci-hcd.c [PATCH] USB: allow multiple types of EHCI controllers to be built as modules 2006-06-21 15:04:09 -07:00
ehci-hub.c
ehci-mem.c
ehci-pci.c [PATCH] USB: allow multiple types of EHCI controllers to be built as modules 2006-06-21 15:04:09 -07:00
ehci-q.c
ehci-sched.c [PATCH] improved TT scheduling for EHCI 2006-06-21 15:04:13 -07:00
ehci.h
hc_crisv10.c
hc_crisv10.h
isp116x-hcd.c
isp116x.h
Kconfig [PATCH] improved TT scheduling for EHCI 2006-06-21 15:04:13 -07:00
Makefile
ohci-at91.c
ohci-au1xxx.c
ohci-dbg.c
ohci-hcd.c
ohci-hub.c
ohci-lh7a404.c
ohci-mem.c
ohci-omap.c
ohci-pci.c
ohci-ppc-soc.c
ohci-pxa27x.c
ohci-q.c
ohci-s3c2410.c
ohci-sa1111.c
ohci.h
pci-quirks.c
pci-quirks.h
sl811_cs.c
sl811-hcd.c
sl811.h
uhci-debug.c [PATCH] UHCI: remove ISO TDs as they are used 2006-06-21 15:04:12 -07:00
uhci-hcd.c [PATCH] UHCI: use integer-sized frame numbers 2006-06-21 15:04:12 -07:00
uhci-hcd.h [PATCH] UHCI: remove ISO TDs as they are used 2006-06-21 15:04:12 -07:00
uhci-hub.c [PATCH] UHCI: Reimplement FSBR 2006-06-21 15:04:11 -07:00
uhci-q.c [PATCH] UHCI: remove ISO TDs as they are used 2006-06-21 15:04:12 -07:00