1 /*
2  * Copyright (C) 2005 - 2014 Emulex
3  * All rights reserved.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License version 2
7  * as published by the Free Software Foundation. The full GNU General
8  * Public License is included in this distribution in the file called COPYING.
9  *
10  * Contact Information:
11  * linux-drivers@emulex.com
12  *
13  * Emulex
14  * 3333 Susan Street
15  * Costa Mesa, CA 92626
16  */
17 
18 #ifndef BE_ROCE_H
19 #define BE_ROCE_H
20 
21 #include <linux/pci.h>
22 #include <linux/netdevice.h>
23 
24 #define BE_ROCE_ABI_VERSION	1
25 
26 struct ocrdma_dev;
27 
28 enum be_interrupt_mode {
29 	BE_INTERRUPT_MODE_MSIX	= 0,
30 	BE_INTERRUPT_MODE_INTX	= 1,
31 	BE_INTERRUPT_MODE_MSI	= 2,
32 };
33 
34 #define MAX_MSIX_VECTORS		32
35 struct be_dev_info {
36 	u8 __iomem *db;
37 	u64 unmapped_db;
38 	u32 db_page_size;
39 	u32 db_total_size;
40 	u64 dpp_unmapped_addr;
41 	u32 dpp_unmapped_len;
42 	struct pci_dev *pdev;
43 	struct net_device *netdev;
44 	u8 mac_addr[ETH_ALEN];
45 	u32 dev_family;
46 	enum be_interrupt_mode intr_mode;
47 	struct {
48 		int num_vectors;
49 		int start_vector;
50 		u32 vector_list[MAX_MSIX_VECTORS];
51 	} msix;
52 };
53 
54 /* ocrdma driver register's the callback functions with nic driver. */
55 struct ocrdma_driver {
56 	unsigned char name[32];
57 	u32 be_abi_version;
58 	struct ocrdma_dev *(*add) (struct be_dev_info *dev_info);
59 	void (*remove) (struct ocrdma_dev *);
60 	void (*state_change_handler) (struct ocrdma_dev *, u32 new_state);
61 };
62 
63 enum {
64 	BE_DEV_UP	= 0,
65 	BE_DEV_DOWN	= 1
66 };
67 
68 /* APIs for RoCE driver to register callback handlers,
69  * which will be invoked when device is added, removed, ifup, ifdown
70  */
71 int be_roce_register_driver(struct ocrdma_driver *drv);
72 void be_roce_unregister_driver(struct ocrdma_driver *drv);
73 
74 /* API for RoCE driver to issue mailbox commands */
75 int be_roce_mcc_cmd(void *netdev_handle, void *wrb_payload,
76 		    int wrb_payload_size, u16 *cmd_status, u16 *ext_status);
77 
78 #endif /* BE_ROCE_H */
79