Hi Tim, Can you test out Andiry's ring expansion patchset? Patches start here: http://marc.info/?l=linux-usb&m=131918645424329&w=2 Andiry, thanks for this! I won't be able to review it until the week after next (Nov 1st), since I'll be at the Kernel Summit and LinuxCon. Sarah Sharp On Fri, Oct 21, 2011 at 04:40:23PM +0800, Andiry Xu wrote: > Hi Sarah, > > This is xHCI ring expansion v2. It passed isoc device test, but it's > hard to test the special case handler in patch 6 and I mark this as RFC, > comments are appreciated. > > Changelog from v1: > > 1. Count free TRB numbers to perform room_on_ring() check; > 2. Factor out segments alloc and free to remove duplicate codes; > 3. If dequeue and enqueue pointer are in the same segment and enqueue > pointer is behind, wait for the dequeue pointer pass link TRB first; > 4. Update sg_tablesize to allow more sg list entries. > > Thanks, > Andiry > > --- > > Andiry Xu (7): > xHCI: store ring's last segment and segment numbers > xHCI: count free TRBs on transfer ring > xHCI: factor out segments allocation and free function > xHCI: set cycle state when allocate rings > xHCI: dynamic ring expansion > xHCI: wait for dequeue pointer move pass link TRB > xHCI: update sg tablesize > > drivers/usb/host/xhci-mem.c | 240 ++++++++++++++++++++++++++++++++---------- > drivers/usb/host/xhci-ring.c | 190 ++++++++++++++++++++------------- > drivers/usb/host/xhci.c | 12 ++- > drivers/usb/host/xhci.h | 20 +++- > 4 files changed, 326 insertions(+), 136 deletions(-) > > -- > 1.7.4.1 > > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
