diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-04-23 04:02:05 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-04-23 04:02:05 -0300 |
| commit | 394569928e2f17dff4ae367ac700048138e318c7 (patch) | |
| tree | c789d2a2d107284e78f6c6558267b6984f518581 /drivers/usb/storage/uas.c | |
| parent | bdcfd44fb5b5fb8fd660e7f93f1095c507481024 (diff) | |
Linux-libre 4.5.2-gnupck-4.5.2-gnu
Diffstat (limited to 'drivers/usb/storage/uas.c')
| -rw-r--r-- | drivers/usb/storage/uas.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index c90a7e46c..e4ade8d89 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -2,7 +2,7 @@ * USB Attached SCSI * Note that this is not the same as the USB Mass Storage driver * - * Copyright Hans de Goede <hdegoede@redhat.com> for Red Hat, Inc. 2013 - 2014 + * Copyright Hans de Goede <hdegoede@redhat.com> for Red Hat, Inc. 2013 - 2016 * Copyright Matthew Wilcox for Intel Corp, 2010 * Copyright Sarah Sharp for Intel Corp, 2010 * @@ -757,6 +757,17 @@ static int uas_eh_bus_reset_handler(struct scsi_cmnd *cmnd) return SUCCESS; } +static int uas_target_alloc(struct scsi_target *starget) +{ + struct uas_dev_info *devinfo = (struct uas_dev_info *) + dev_to_shost(starget->dev.parent)->hostdata; + + if (devinfo->flags & US_FL_NO_REPORT_LUNS) + starget->no_report_luns = 1; + + return 0; +} + static int uas_slave_alloc(struct scsi_device *sdev) { struct uas_dev_info *devinfo = @@ -800,7 +811,6 @@ static int uas_slave_configure(struct scsi_device *sdev) if (devinfo->flags & US_FL_BROKEN_FUA) sdev->broken_fua = 1; - scsi_change_queue_depth(sdev, devinfo->qdepth - 2); return 0; } @@ -808,6 +818,7 @@ static struct scsi_host_template uas_host_template = { .module = THIS_MODULE, .name = "uas", .queuecommand = uas_queuecommand, + .target_alloc = uas_target_alloc, .slave_alloc = uas_slave_alloc, .slave_configure = uas_slave_configure, .eh_abort_handler = uas_eh_abort_handler, @@ -932,6 +943,12 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id) if (result) goto set_alt0; + /* + * 1 tag is reserved for untagged commands + + * 1 tag to avoid off by one errors in some bridge firmwares + */ + shost->can_queue = devinfo->qdepth - 2; + usb_set_intfdata(intf, shost); result = scsi_add_host(shost, &intf->dev); if (result) |