Le 10/12/2024 à 19:37, Yidong Zhang a écrit :
The communication channel (comm_chan) service is between versal-pci and the
user PF driver. When the user PF driver requests PL data download, the
comm_chan service will handle the request by versal_pci_load_xclbin.
...
+enum comm_chan_req_ops {
+ COMM_CHAN_REQ_OPS_UNKNOWN = 0,
+ COMM_CHAN_REQ_OPS_HOT_RESET = 5,
+ COMM_CHAN_REQ_OPS_GET_PROTOCOL_VERSION = 19,
+ COMM_CHAN_REQ_OPS_LOAD_XCLBIN_UUID = 20,
+ COMM_CHAN_REQ_OPS_MAX,
Unneeded comma after a terminator.
+};
...
+static void comm_chan_check_request(struct work_struct *w)
+{
+ struct comm_chan_device *ccdev = to_ccdev_work(w);
+ u32 status = 0, request[COMM_CHAN_DATA_LEN] = {0};
These 2 initialisations are not needed.
+ struct comm_chan_hw_msg *hw_msg;
+ u8 type, eom;
+ int i;
+
+ status = comm_chan_read(ccdev, COMM_CHAN_REG_IS_OFF);
+ if (!STATUS_IS_READY(status))
+ return;
+ if (STATUS_IS_ERROR(status)) {
+ vdev_err(ccdev->vdev, "An error has occurred with comms");
+ return;
+ }
+
+ /* ACK status */
+ comm_chan_write(ccdev, COMM_CHAN_REG_IS_OFF, status);
+
+ for (i = 0; i < COMM_CHAN_DATA_LEN; i++)
+ request[i] = comm_chan_read(ccdev, COMM_CHAN_REG_RDDATA_OFF);
+
...
CJ
