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usb: gadget: f_tcm: Inform last stream request

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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>
This commit is contained in:
Thinh Nguyen 2020-05-05 19:46:19 -07:00 committed by Felipe Balbi
parent 5469fd64ef
commit 27b31b91b0
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/gadget/function/f_tcm.c
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@ -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;