diff options
| -rw-r--r-- | drivers/usb/storage/uas-detect.h | 33 | ||||
| -rw-r--r-- | drivers/usb/storage/unusual_uas.h | 8 |
2 files changed, 28 insertions, 13 deletions
diff --git a/drivers/usb/storage/uas-detect.h b/drivers/usb/storage/uas-detect.h index 8a6f371ed6e..9893d696fc9 100644 --- a/drivers/usb/storage/uas-detect.h +++ b/drivers/usb/storage/uas-detect.h @@ -69,16 +69,39 @@ static int uas_use_uas_driver(struct usb_interface *intf, return 0; /* - * ASM1051 and older ASM1053 devices have the same usb-id, and UAS is - * broken on the ASM1051, use the number of streams to differentiate. - * New ASM1053-s also support 32 streams, but have a different prod-id. + * ASMedia has a number of usb3 to sata bridge chips, at the time of + * this writing the following versions exist: + * ASM1051 - no uas support version + * ASM1051 - with broken (*) uas support + * ASM1053 - with working uas support + * ASM1153 - with working uas support + * + * Devices with these chips re-use a number of device-ids over the + * entire line, so the device-id is useless to determine if we're + * dealing with an ASM1051 (which we want to avoid). + * + * The ASM1153 can be identified by config.MaxPower == 0, + * where as the ASM105x models have config.MaxPower == 36. + * + * Differentiating between the ASM1053 and ASM1051 is trickier, when + * connected over USB-3 we can look at the number of streams supported, + * ASM1051 supports 32 streams, where as early ASM1053 versions support + * 16 streams, newer ASM1053-s also support 32 streams, but have a + * different prod-id. + * + * (*) ASM1051 chips do work with UAS with some disks (with the + * US_FL_NO_REPORT_OPCODES quirk), but are broken with other disks */ if (le16_to_cpu(udev->descriptor.idVendor) == 0x174c && - le16_to_cpu(udev->descriptor.idProduct) == 0x55aa) { - if (udev->speed < USB_SPEED_SUPER) { + (le16_to_cpu(udev->descriptor.idProduct) == 0x5106 || + le16_to_cpu(udev->descriptor.idProduct) == 0x55aa)) { + if (udev->actconfig->desc.bMaxPower == 0) { + /* ASM1153, do nothing */ + } else if (udev->speed < USB_SPEED_SUPER) { /* No streams info, assume ASM1051 */ flags |= US_FL_IGNORE_UAS; } else if (usb_ss_max_streams(&eps[1]->ss_ep_comp) == 32) { + /* Possibly an ASM1051, disable uas */ flags |= US_FL_IGNORE_UAS; } } diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h index b5e3255d08f..542a7d152dd 100644 --- a/drivers/usb/storage/unusual_uas.h +++ b/drivers/usb/storage/unusual_uas.h @@ -106,14 +106,6 @@ UNUSUAL_DEV(0x152d, 0x0567, 0x0000, 0x9999, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NO_REPORT_OPCODES), -/* Most ASM1051 based devices have issues with uas, blacklist them all */ -/* Reported-by: Hans de Goede <hdegoede@redhat.com> */ -UNUSUAL_DEV(0x174c, 0x5106, 0x0000, 0x9999, - "ASMedia", - "ASM1051", - USB_SC_DEVICE, USB_PR_DEVICE, NULL, - US_FL_IGNORE_UAS), - /* Reported-by: Hans de Goede <hdegoede@redhat.com> */ UNUSUAL_DEV(0x2109, 0x0711, 0x0000, 0x9999, "VIA", |