Author: hselasky Date: Mon Jun 10 13:17:39 2019 New Revision: 348853 URL: https://svnweb.freebsd.org/changeset/base/348853
Log: MFC r348604: In xhci(4) there is no stream ID in the completion TRB. Instead iterate all the stream IDs in stream mode to find the matching USB transfer. Sponsored by: Mellanox Technologies Modified: stable/10/sys/dev/usb/controller/xhci.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/dev/usb/controller/xhci.c ============================================================================== --- stable/10/sys/dev/usb/controller/xhci.c Mon Jun 10 13:16:49 2019 (r348852) +++ stable/10/sys/dev/usb/controller/xhci.c Mon Jun 10 13:17:39 2019 (r348853) @@ -895,7 +895,7 @@ xhci_check_transfer(struct xhci_softc *sc, struct xhci uint64_t td_event; uint32_t temp; uint32_t remainder; - uint16_t stream_id; + uint16_t stream_id = 0; uint16_t i; uint8_t status; uint8_t halted; @@ -908,7 +908,6 @@ xhci_check_transfer(struct xhci_softc *sc, struct xhci remainder = XHCI_TRB_2_REM_GET(temp); status = XHCI_TRB_2_ERROR_GET(temp); - stream_id = XHCI_TRB_2_STREAM_GET(temp); temp = le32toh(trb->dwTrb3); epno = XHCI_TRB_3_EP_GET(temp); @@ -918,8 +917,8 @@ xhci_check_transfer(struct xhci_softc *sc, struct xhci halted = (status != XHCI_TRB_ERROR_SHORT_PKT && status != XHCI_TRB_ERROR_SUCCESS); - DPRINTF("slot=%u epno=%u stream=%u remainder=%u status=%u\n", - index, epno, stream_id, remainder, status); + DPRINTF("slot=%u epno=%u remainder=%u status=%u\n", + index, epno, remainder, status); if (index > sc->sc_noslot) { DPRINTF("Invalid slot.\n"); @@ -933,18 +932,19 @@ xhci_check_transfer(struct xhci_softc *sc, struct xhci pepext = &sc->sc_hw.devs[index].endp[epno]; - if (pepext->trb_ep_mode != USB_EP_MODE_STREAMS) { - stream_id = 0; - DPRINTF("stream_id=0\n"); - } else if (stream_id >= XHCI_MAX_STREAMS) { - DPRINTF("Invalid stream ID.\n"); - return; - } - /* try to find the USB transfer that generated the event */ - for (i = 0; i != (XHCI_MAX_TRANSFERS - 1); i++) { + for (i = 0;; i++) { struct usb_xfer *xfer; struct xhci_td *td; + + if (i == (XHCI_MAX_TRANSFERS - 1)) { + if (pepext->trb_ep_mode != USB_EP_MODE_STREAMS || + stream_id == (XHCI_MAX_STREAMS - 1)) + break; + stream_id++; + i = 0; + DPRINTFN(5, "stream_id=%u\n", stream_id); + } xfer = pepext->xfer[i + (XHCI_MAX_TRANSFERS * stream_id)]; if (xfer == NULL) _______________________________________________ svn-src-stable-10@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-stable-10 To unsubscribe, send any mail to "svn-src-stable-10-unsubscr...@freebsd.org"