Date: Sat, 18 Apr 2020 15:05:11 +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: r360075 - head/sys/dev/usb/controller Message-ID: <202004181505.03IF5BFG010542@repo.freebsd.org>
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Author: hselasky Date: Sat Apr 18 15:05:10 2020 New Revision: 360075 URL: https://svnweb.freebsd.org/changeset/base/360075 Log: Set the maximum exit latency to 0 for XHCI USB 3.0 devices, because we don't implement link power management, LPM. This fixes error code XHCI_TRB_ERROR_BANDWIDTH for isochronous USB 3.0 transactions. Submitted by: Horse Ma <Shichun.Ma@dell.com> MFC after: 1 week Sponsored by: Mellanox Technologies Modified: head/sys/dev/usb/controller/xhci.c Modified: head/sys/dev/usb/controller/xhci.c ============================================================================== --- head/sys/dev/usb/controller/xhci.c Sat Apr 18 13:29:54 2020 (r360074) +++ head/sys/dev/usb/controller/xhci.c Sat Apr 18 15:05:10 2020 (r360075) @@ -2665,23 +2665,6 @@ xhci_configure_device(struct usb_device *udev) sc->sc_hw.devs[index].nports); } - switch (udev->speed) { - case USB_SPEED_SUPER: - switch (sc->sc_hw.devs[index].state) { - case XHCI_ST_ADDRESSED: - case XHCI_ST_CONFIGURED: - /* enable power save */ - temp |= XHCI_SCTX_1_MAX_EL_SET(sc->sc_exit_lat_max); - break; - default: - /* disable power save */ - break; - } - break; - default: - break; - } - xhci_ctx_set_le32(sc, &pinp->ctx_slot.dwSctx1, temp); temp = XHCI_SCTX_2_IRQ_TARGET_SET(0);
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