Hi,
with these patches (and, no, the mass storage patch is not extremely important
although it gives some nice extra improvement - about 1 MiB/sec extra in some
cases - at least not for USB2, I tested without that as well), I increased USB2
on a AM437x board with g_mass_storage using RAM as backing store from 17MiB/sec
to 39MiB/sec as measured by dd (with oflag/iflag=direct depending on whether I
was writing or reading from g_mass_storage).
I'm yet to test all other gadget drivers to make sure there are no
regressions, but it's looking promissing.
cheers
Changes since V1:
- fix regression with isochronous transfers
Felipe Balbi (5):
usb: dwc3: gadget: start requests as soon as they come
usb: dwc3: gadget: start using Update Transfer more often
usb: dwc3: gadget: clear DWC3_PENDING_REQUEST when request is queued
usb: dwc3: gadget: remove 'start_new' parameter
usb: gadget: mass_storage: allow for deeper queue lengths
drivers/usb/dwc3/gadget.c | 68 +++++++++++++++-------------
drivers/usb/gadget/Kconfig | 2 +-
drivers/usb/gadget/function/f_mass_storage.c | 2 +-
3 files changed, 38 insertions(+), 34 deletions(-)
--
2.5.0
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