On 1/22/2021 9:47 AM, Jiawen Wu wrote:
Implement VF device init and uninit function with hardware operations,
and negotiate with PF in mailbox.
Signed-off-by: Jiawen Wu <jiawe...@trustnetic.com>
<...>
+int txgbevf_get_queues(struct txgbe_hw *hw, unsigned int *num_tcs,
+ unsigned int *default_tc)
+{
+ int err, i;
+ u32 msg[5];
+
+ /* do nothing if API doesn't support txgbevf_get_queues */
+ switch (hw->api_version) {
+ case txgbe_mbox_api_11:
+ case txgbe_mbox_api_12:
+ case txgbe_mbox_api_13:
+ break;
+ default:
+ return 0;
+ }
+
+ /* Fetch queue configuration from the PF */
+ msg[0] = TXGBE_VF_GET_QUEUES;
+ for (i = 1; i < 5; i++)
+ msg[i] = 0;
+
+ err = txgbevf_write_msg_read_ack(hw, msg, msg, 5);
+ if (!err) {
+ msg[0] &= ~TXGBE_VT_MSGTYPE_CTS;
+
+ /*
+ * if we we didn't get an ACK there must have been
typo on 'we', it is dublicated.
