* @disconnect_pcie_paths: Disconnects PCIe paths before NVM update
* @approve_xdomain_paths: Approve (establish) XDomain DMA paths
* @disconnect_xdomain_paths: Disconnect XDomain DMA paths
+ * @usb4_switch_op: Optional proxy for USB4 router operations. If set
+ * this will be called whenever USB4 router operation is
+ * performed. If this returns %-EOPNOTSUPP then the
+ * native USB4 router operation is called.
+ * @usb4_switch_nvm_authenticate_status: Optional callback that the CM
+ * implementation can be used to
+ * return status of USB4 NVM_AUTH
+ * router operation.
*/
struct tb_cm_ops {
int (*driver_ready)(struct tb *tb);
int (*disconnect_pcie_paths)(struct tb *tb);
int (*approve_xdomain_paths)(struct tb *tb, struct tb_xdomain *xd);
int (*disconnect_xdomain_paths)(struct tb *tb, struct tb_xdomain *xd);
+ int (*usb4_switch_op)(struct tb_switch *sw, u16 opcode, u32 *metadata,
+ u8 *status, const void *tx_data, size_t tx_data_len,
+ void *rx_data, size_t rx_data_len);
+ int (*usb4_switch_nvm_authenticate_status)(struct tb_switch *sw,
+ u32 *status);
};
static inline void *tb_priv(struct tb *tb)
return 0;
}
-static int __usb4_switch_op(struct tb_switch *sw, u16 opcode, u32 *metadata,
- u8 *status, const void *tx_data, size_t tx_dwords,
- void *rx_data, size_t rx_dwords)
+static int usb4_native_switch_op(struct tb_switch *sw, u16 opcode,
+ u32 *metadata, u8 *status,
+ const void *tx_data, size_t tx_dwords,
+ void *rx_data, size_t rx_dwords)
{
u32 val;
int ret;
- if (tx_dwords > USB4_DATA_DWORDS || rx_dwords > USB4_DATA_DWORDS)
- return -EINVAL;
-
if (metadata) {
ret = tb_sw_write(sw, metadata, TB_CFG_SWITCH, ROUTER_CS_25, 1);
if (ret)
return 0;
}
+static int __usb4_switch_op(struct tb_switch *sw, u16 opcode, u32 *metadata,
+ u8 *status, const void *tx_data, size_t tx_dwords,
+ void *rx_data, size_t rx_dwords)
+{
+ const struct tb_cm_ops *cm_ops = sw->tb->cm_ops;
+
+ if (tx_dwords > USB4_DATA_DWORDS || rx_dwords > USB4_DATA_DWORDS)
+ return -EINVAL;
+
+ /*
+ * If the connection manager implementation provides USB4 router
+ * operation proxy callback, call it here instead of running the
+ * operation natively.
+ */
+ if (cm_ops->usb4_switch_op) {
+ int ret;
+
+ ret = cm_ops->usb4_switch_op(sw, opcode, metadata, status,
+ tx_data, tx_dwords, rx_data,
+ rx_dwords);
+ if (ret != -EOPNOTSUPP)
+ return ret;
+
+ /*
+ * If the proxy was not supported then run the native
+ * router operation instead.
+ */
+ }
+
+ return usb4_native_switch_op(sw, opcode, metadata, status, tx_data,
+ tx_dwords, rx_data, rx_dwords);
+}
+
static inline int usb4_switch_op(struct tb_switch *sw, u16 opcode,
u32 *metadata, u8 *status)
{
*/
int usb4_switch_nvm_authenticate_status(struct tb_switch *sw, u32 *status)
{
+ const struct tb_cm_ops *cm_ops = sw->tb->cm_ops;
u16 opcode;
u32 val;
int ret;
+ if (cm_ops->usb4_switch_nvm_authenticate_status) {
+ ret = cm_ops->usb4_switch_nvm_authenticate_status(sw, status);
+ if (ret != -EOPNOTSUPP)
+ return ret;
+ }
+
ret = tb_sw_read(sw, &val, TB_CFG_SWITCH, ROUTER_CS_26, 1);
if (ret)
return ret;