diff options
| author |   Thinh Nguyen <Thinh.Nguyen@synopsys.com> | 2020-05-05 19:46:19 -0700 |
|---|---|---|
| committer |   Felipe Balbi <balbi@kernel.org> | 2020-05-25 11:09:41 +0300 |
| commit | 27b31b91b04bf7b76103d222bd2cbe37c9e59ed0 (patch) | |
| tree | 51675c1427ac53c640f38e8ee2c9808b75c6b632 /drivers/usb | |
| parent | usb: gadget: Introduce usb_request->is_last (diff) | |
| download | wireguard-linux-27b31b91b04bf7b76103d222bd2cbe37c9e59ed0.tar.xz wireguard-linux-27b31b91b04bf7b76103d222bd2cbe37c9e59ed0.zip | |
usb: gadget: f_tcm: Inform last stream request
Set the request->is_last to each stream request to indicate that the
request is the last stream request of a transfer. The DWC3 controller
needs to know this info to properly switch streams. The current
implementation of f_tcm uses a single request per transfer, so every
stream request is the last of its stream.
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/function/f_tcm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c index 36504931b2d1..2979cbe4d95f 100644 --- a/drivers/usb/gadget/function/f_tcm.c +++ b/drivers/usb/gadget/function/f_tcm.c @@ -531,6 +531,7 @@ static int uasp_prepare_r_request(struct usbg_cmd *cmd) stream->req_in->sg = se_cmd->t_data_sg; } + stream->req_in->is_last = 1; stream->req_in->complete = uasp_status_data_cmpl; stream->req_in->length = se_cmd->data_length; stream->req_in->context = cmd; @@ -554,6 +555,7 @@ static void uasp_prepare_status(struct usbg_cmd *cmd) */ iu->len = cpu_to_be16(se_cmd->scsi_sense_length); iu->status = se_cmd->scsi_status; + stream->req_status->is_last = 1; stream->req_status->context = cmd; stream->req_status->length = se_cmd->scsi_sense_length + 16; stream->req_status->buf = iu; @@ -991,6 +993,7 @@ static int usbg_prepare_w_request(struct usbg_cmd *cmd, struct usb_request *req) req->sg = se_cmd->t_data_sg; } + req->is_last = 1; req->complete = usbg_data_write_cmpl; req->length = se_cmd->data_length; req->context = cmd; |