Author: bz Date: Tue Dec 1 18:24:06 2020 New Revision: 368246 URL: https://svnweb.freebsd.org/changeset/base/368246
Log: USB umass: add quirk to not probe Some USB WLAN devices have "on-board" storage showing up as umass and making the root mount wait for a very long time. The WLAN drivers know how to deal with that an issue an eject command later when attaching themselves. Introduce a quirk to not probe these devices as umass and avoid hangs and confusion altogether. Reviewed by: hselasky, imp MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D27434 Modified: head/sys/dev/usb/quirk/usb_quirk.c head/sys/dev/usb/quirk/usb_quirk.h head/sys/dev/usb/storage/umass.c Modified: head/sys/dev/usb/quirk/usb_quirk.c ============================================================================== --- head/sys/dev/usb/quirk/usb_quirk.c Tue Dec 1 18:22:34 2020 (r368245) +++ head/sys/dev/usb/quirk/usb_quirk.c Tue Dec 1 18:24:06 2020 (r368246) @@ -539,6 +539,7 @@ static struct usb_quirk_entry usb_quirks[USB_DEV_QUIRK USB_QUIRK(QUALCOMMINC, ZTE_MF730M, 0x0000, 0xffff, UQ_MSC_NO_GETMAXLUN, UQ_MSC_NO_INQUIRY, UQ_CFG_INDEX_0), USB_QUIRK(SMART2, G2MEMKEY, 0x0000, 0xffff, UQ_MSC_NO_INQUIRY), + USB_QUIRK(RALINK, RT_STOR, 0x0001, 0x0001, UQ_MSC_IGNORE), /* Non-standard USB MIDI devices */ USB_QUIRK(ROLAND, UM1, 0x0000, 0xffff, UQ_AU_VENDOR_CLASS), USB_QUIRK(ROLAND, SC8850, 0x0000, 0xffff, UQ_AU_VENDOR_CLASS), @@ -642,6 +643,7 @@ static const char *usb_quirk_str[USB_QUIRK_MAX] = { [UQ_MSC_FORCE_PROTO_ATAPI] = "UQ_MSC_FORCE_PROTO_ATAPI", [UQ_MSC_FORCE_PROTO_UFI] = "UQ_MSC_FORCE_PROTO_UFI", [UQ_MSC_FORCE_PROTO_RBC] = "UQ_MSC_FORCE_PROTO_RBC", + [UQ_MSC_IGNORE] = "UQ_MSC_IGNORE", [UQ_MSC_EJECT_HUAWEI] = "UQ_MSC_EJECT_HUAWEI", [UQ_MSC_EJECT_SIERRA] = "UQ_MSC_EJECT_SIERRA", [UQ_MSC_EJECT_SCSIEJECT] = "UQ_MSC_EJECT_SCSIEJECT", Modified: head/sys/dev/usb/quirk/usb_quirk.h ============================================================================== --- head/sys/dev/usb/quirk/usb_quirk.h Tue Dec 1 18:22:34 2020 (r368245) +++ head/sys/dev/usb/quirk/usb_quirk.h Tue Dec 1 18:24:06 2020 (r368246) @@ -93,6 +93,7 @@ enum { UQ_MSC_FORCE_PROTO_ATAPI, /* force ATAPI command protocol */ UQ_MSC_FORCE_PROTO_UFI, /* force UFI command protocol */ UQ_MSC_FORCE_PROTO_RBC, /* force RBC command protocol */ + UQ_MSC_IGNORE, /* device should be ignored by umass */ /* Ejection of mass storage (driver disk) */ UQ_MSC_EJECT_HUAWEI, /* ejects after Huawei USB command */ Modified: head/sys/dev/usb/storage/umass.c ============================================================================== --- head/sys/dev/usb/storage/umass.c Tue Dec 1 18:22:34 2020 (r368245) +++ head/sys/dev/usb/storage/umass.c Tue Dec 1 18:24:06 2020 (r368246) @@ -784,6 +784,12 @@ umass_probe_proto(device_t dev, struct usb_attach_arg memset(&ret, 0, sizeof(ret)); ret.error = BUS_PROBE_GENERIC; + /* Check if we should deny probing. */ + if (usb_test_quirk(uaa, UQ_MSC_IGNORE)) { + ret.error = ENXIO; + goto done; + } + /* Search for protocol enforcement */ if (usb_test_quirk(uaa, UQ_MSC_FORCE_WIRE_BBB)) { _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
