net-next/hinic: Add management messages

Add the management messages for sending to api cmd and the asynchronous
event handler for the completion of the messages.
Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/huawei/hinic/hinic_hw_api_cmd.c

@@ -53,6 +53,41 @@ enum api_cmd_xor_chk_level {
 	XOR_CHK_ALL = 3,
 };
 
+/**
+ * api_cmd - API CMD command
+ * @chain: chain for the command
+ * @dest: destination node on the card that will receive the command
+ * @cmd: command data
+ * @size: the command size
+ *
+ * Return 0 - Success, negative - Failure
+ **/
+static int api_cmd(struct hinic_api_cmd_chain *chain,
+		   enum hinic_node_id dest, u8 *cmd, u16 cmd_size)
+{
+	/* should be implemented */
+	return -EINVAL;
+}
+
+/**
+ * hinic_api_cmd_write - Write API CMD command
+ * @chain: chain for write command
+ * @dest: destination node on the card that will receive the command
+ * @cmd: command data
+ * @size: the command size
+ *
+ * Return 0 - Success, negative - Failure
+ **/
+int hinic_api_cmd_write(struct hinic_api_cmd_chain *chain,
+			enum hinic_node_id dest, u8 *cmd, u16 size)
+{
+	/* Verify the chain type */
+	if (chain->chain_type == HINIC_API_CMD_WRITE_TO_MGMT_CPU)
+		return api_cmd(chain, dest, cmd, size);
+
+	return -EINVAL;
+}
+
 /**
  * api_cmd_hw_restart - restart the chain in the HW
  * @chain: the API CMD specific chain to restart

drivers/net/ethernet/huawei/hinic/hinic_hw_api_cmd.h

@@ -132,6 +132,9 @@ struct hinic_api_cmd_chain {
 	struct hinic_api_cmd_cell       *curr_node;
 };
 
+int hinic_api_cmd_write(struct hinic_api_cmd_chain *chain,
+			enum hinic_node_id dest, u8 *cmd, u16 size);
+
 int hinic_api_cmd_init(struct hinic_api_cmd_chain **chain,
 		       struct hinic_hwif *hwif);
 

drivers/net/ethernet/huawei/hinic/hinic_hw_if.h

@@ -93,6 +93,7 @@
 #define HINIC_HWIF_NUM_IRQS(hwif)       ((hwif)->attr.num_irqs)
 #define HINIC_HWIF_FUNC_IDX(hwif)       ((hwif)->attr.func_idx)
 #define HINIC_HWIF_PCI_INTF(hwif)       ((hwif)->attr.pci_intf_idx)
+#define HINIC_HWIF_PF_IDX(hwif)         ((hwif)->attr.pf_idx)
 
 #define HINIC_FUNC_TYPE(hwif)           ((hwif)->attr.func_type)
 #define HINIC_IS_PF(hwif)               (HINIC_FUNC_TYPE(hwif) == HINIC_PF)
@@ -127,6 +128,10 @@ enum hinic_mod_type {
 	HINIC_MOD_MAX   = 15
 };
 
+enum hinic_node_id {
+	HINIC_NODE_ID_MGMT = 21,
+};
+
 struct hinic_func_attr {
 	u16                     func_idx;
 	u8                      pf_idx;

drivers/net/ethernet/huawei/hinic/hinic_hw_mgmt.h

@@ -17,10 +17,48 @@
 #define HINIC_HW_MGMT_H
 
 #include <linux/types.h>
+#include <linux/semaphore.h>
+#include <linux/completion.h>
 
 #include "hinic_hw_if.h"
 #include "hinic_hw_api_cmd.h"
 
+#define HINIC_MSG_HEADER_MSG_LEN_SHIFT                          0
+#define HINIC_MSG_HEADER_MODULE_SHIFT                           11
+#define HINIC_MSG_HEADER_SEG_LEN_SHIFT                          16
+#define HINIC_MSG_HEADER_NO_ACK_SHIFT                           22
+#define HINIC_MSG_HEADER_ASYNC_MGMT_TO_PF_SHIFT                 23
+#define HINIC_MSG_HEADER_SEQID_SHIFT                            24
+#define HINIC_MSG_HEADER_LAST_SHIFT                             30
+#define HINIC_MSG_HEADER_DIRECTION_SHIFT                        31
+#define HINIC_MSG_HEADER_CMD_SHIFT                              32
+#define HINIC_MSG_HEADER_ZEROS_SHIFT                            40
+#define HINIC_MSG_HEADER_PCI_INTF_SHIFT                         48
+#define HINIC_MSG_HEADER_PF_IDX_SHIFT                           50
+#define HINIC_MSG_HEADER_MSG_ID_SHIFT                           54
+
+#define HINIC_MSG_HEADER_MSG_LEN_MASK                           0x7FF
+#define HINIC_MSG_HEADER_MODULE_MASK                            0x1F
+#define HINIC_MSG_HEADER_SEG_LEN_MASK                           0x3F
+#define HINIC_MSG_HEADER_NO_ACK_MASK                            0x1
+#define HINIC_MSG_HEADER_ASYNC_MGMT_TO_PF_MASK                  0x1
+#define HINIC_MSG_HEADER_SEQID_MASK                             0x3F
+#define HINIC_MSG_HEADER_LAST_MASK                              0x1
+#define HINIC_MSG_HEADER_DIRECTION_MASK                         0x1
+#define HINIC_MSG_HEADER_CMD_MASK                               0xFF
+#define HINIC_MSG_HEADER_ZEROS_MASK                             0xFF
+#define HINIC_MSG_HEADER_PCI_INTF_MASK                          0x3
+#define HINIC_MSG_HEADER_PF_IDX_MASK                            0xF
+#define HINIC_MSG_HEADER_MSG_ID_MASK                            0x3FF
+
+#define HINIC_MSG_HEADER_SET(val, member)                       \
+		((u64)((val) & HINIC_MSG_HEADER_##member##_MASK) << \
+		 HINIC_MSG_HEADER_##member##_SHIFT)
+
+#define HINIC_MSG_HEADER_GET(val, member)                       \
+		(((val) >> HINIC_MSG_HEADER_##member##_SHIFT) & \
+		 HINIC_MSG_HEADER_##member##_MASK)
+
 enum hinic_mgmt_msg_type {
 	HINIC_MGMT_MSG_SYNC = 1,
 };
@@ -29,9 +67,30 @@ enum hinic_cfg_cmd {
 	HINIC_CFG_NIC_CAP = 0,
 };
 
+struct hinic_recv_msg {
+	u8                      *msg;
+	u8                      *buf_out;
+
+	struct completion       recv_done;
+
+	u16                     cmd;
+	enum hinic_mod_type     mod;
+	int                     async_mgmt_to_pf;
+
+	u16                     msg_len;
+	u16                     msg_id;
+};
+
 struct hinic_pf_to_mgmt {
 	struct hinic_hwif               *hwif;
 
+	struct semaphore                sync_msg_lock;
+	u16                             sync_msg_id;
+	u8                              *sync_msg_buf;
+
+	struct hinic_recv_msg           recv_resp_msg_from_mgmt;
+	struct hinic_recv_msg           recv_msg_from_mgmt;
+
 	struct hinic_api_cmd_chain      *cmd_chain[HINIC_API_CMD_MAX];
 };