Date: Thu, 3 May 2012 16:06:22 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r234961 - in head/sys/dev/usb: . controller Message-ID: <201205031606.q43G6McP050625@svn.freebsd.org>
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Author: hselasky Date: Thu May 3 16:06:22 2012 New Revision: 234961 URL: http://svn.freebsd.org/changeset/base/234961 Log: Make sure the EHCI bandwidth allocation algorithm for FULL speed SPLIT transactions works fully. MFC after: 1 week Modified: head/sys/dev/usb/controller/ehci.c head/sys/dev/usb/usb_transfer.c Modified: head/sys/dev/usb/controller/ehci.c ============================================================================== --- head/sys/dev/usb/controller/ehci.c Thu May 3 16:05:34 2012 (r234960) +++ head/sys/dev/usb/controller/ehci.c Thu May 3 16:06:22 2012 (r234961) @@ -2638,11 +2638,29 @@ ehci_device_isoc_fs_enter(struct usb_xfe /* update isoc_next */ xfer->endpoint->isoc_next = (pp_last - &sc->sc_isoc_fs_p_last[0]) & (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); + + /* + * We don't allow cancelling of the SPLIT transaction USB FULL + * speed transfer, because it disturbs the bandwidth + * computation algorithm. + */ + xfer->flags_int.can_cancel_immed = 0; } static void ehci_device_isoc_fs_start(struct usb_xfer *xfer) { + /* + * We don't allow cancelling of the SPLIT transaction USB FULL + * speed transfer, because it disturbs the bandwidth + * computation algorithm. + */ + xfer->flags_int.can_cancel_immed = 0; + + /* set a default timeout */ + if (xfer->timeout == 0) + xfer->timeout = 500; /* ms */ + /* put transfer on interrupt queue */ ehci_transfer_intr_enqueue(xfer); } Modified: head/sys/dev/usb/usb_transfer.c ============================================================================== --- head/sys/dev/usb/usb_transfer.c Thu May 3 16:05:34 2012 (r234960) +++ head/sys/dev/usb/usb_transfer.c Thu May 3 16:06:22 2012 (r234961) @@ -1681,11 +1681,12 @@ usbd_pipe_enter(struct usb_xfer *xfer) DPRINTF("enter\n"); + /* the transfer can now be cancelled */ + xfer->flags_int.can_cancel_immed = 1; + /* enter the transfer */ (ep->methods->enter) (xfer); - xfer->flags_int.can_cancel_immed = 1; - /* check for transfer error */ if (xfer->error) { /* some error has happened */ @@ -2418,13 +2419,15 @@ usbd_transfer_start_cb(void *arg) #if USB_HAVE_PF usbpf_xfertap(xfer, USBPF_XFERTAP_SUBMIT); #endif + + /* the transfer can now be cancelled */ + xfer->flags_int.can_cancel_immed = 1; + /* start USB transfer, if no error */ if (xfer->error == 0) (ep->methods->start) (xfer); - xfer->flags_int.can_cancel_immed = 1; - - /* check for error */ + /* check for transfer error */ if (xfer->error) { /* some error has happened */ usbd_transfer_done(xfer, 0); @@ -2599,13 +2602,14 @@ usbd_pipe_start(struct usb_xfer_queue *p #if USB_HAVE_PF usbpf_xfertap(xfer, USBPF_XFERTAP_SUBMIT); #endif + /* the transfer can now be cancelled */ + xfer->flags_int.can_cancel_immed = 1; + /* start USB transfer, if no error */ if (xfer->error == 0) (ep->methods->start) (xfer); - xfer->flags_int.can_cancel_immed = 1; - - /* check for error */ + /* check for transfer error */ if (xfer->error) { /* some error has happened */ usbd_transfer_done(xfer, 0);
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