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0a7fb11c | 1 | /* QLogic qed NIC Driver |
e8f1cb50 | 2 | * Copyright (c) 2015-2017 QLogic Corporation |
0a7fb11c | 3 | * |
e8f1cb50 MY |
4 | * This software is available to you under a choice of one of two |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
0a7fb11c | 9 | * |
e8f1cb50 MY |
10 | * Redistribution and use in source and binary forms, with or |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and /or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
0a7fb11c YM |
31 | */ |
32 | ||
33 | #ifndef _QED_LL2_IF_H | |
34 | #define _QED_LL2_IF_H | |
35 | ||
36 | #include <linux/types.h> | |
37 | #include <linux/interrupt.h> | |
38 | #include <linux/netdevice.h> | |
39 | #include <linux/pci.h> | |
40 | #include <linux/skbuff.h> | |
41 | #include <linux/version.h> | |
42 | #include <linux/kernel.h> | |
43 | #include <linux/slab.h> | |
44 | #include <linux/qed/qed_if.h> | |
45 | ||
46 | struct qed_ll2_stats { | |
47 | u64 gsi_invalid_hdr; | |
48 | u64 gsi_invalid_pkt_length; | |
49 | u64 gsi_unsupported_pkt_typ; | |
50 | u64 gsi_crcchksm_error; | |
51 | ||
52 | u64 packet_too_big_discard; | |
53 | u64 no_buff_discard; | |
54 | ||
55 | u64 rcv_ucast_bytes; | |
56 | u64 rcv_mcast_bytes; | |
57 | u64 rcv_bcast_bytes; | |
58 | u64 rcv_ucast_pkts; | |
59 | u64 rcv_mcast_pkts; | |
60 | u64 rcv_bcast_pkts; | |
61 | ||
62 | u64 sent_ucast_bytes; | |
63 | u64 sent_mcast_bytes; | |
64 | u64 sent_bcast_bytes; | |
65 | u64 sent_ucast_pkts; | |
66 | u64 sent_mcast_pkts; | |
67 | u64 sent_bcast_pkts; | |
68 | }; | |
69 | ||
70 | #define QED_LL2_UNUSED_HANDLE (0xff) | |
71 | ||
72 | struct qed_ll2_cb_ops { | |
73 | int (*rx_cb)(void *, struct sk_buff *, u32, u32); | |
74 | int (*tx_cb)(void *, struct sk_buff *, bool); | |
75 | }; | |
76 | ||
77 | struct qed_ll2_params { | |
78 | u16 mtu; | |
79 | bool drop_ttl0_packets; | |
80 | bool rx_vlan_stripping; | |
81 | u8 tx_tc; | |
82 | bool frags_mapped; | |
83 | u8 ll2_mac_address[ETH_ALEN]; | |
84 | }; | |
85 | ||
86 | struct qed_ll2_ops { | |
87 | /** | |
88 | * @brief start - initializes ll2 | |
89 | * | |
90 | * @param cdev | |
91 | * @param params - protocol driver configuration for the ll2. | |
92 | * | |
93 | * @return 0 on success, otherwise error value. | |
94 | */ | |
95 | int (*start)(struct qed_dev *cdev, struct qed_ll2_params *params); | |
96 | ||
97 | /** | |
98 | * @brief stop - stops the ll2 | |
99 | * | |
100 | * @param cdev | |
101 | * | |
102 | * @return 0 on success, otherwise error value. | |
103 | */ | |
104 | int (*stop)(struct qed_dev *cdev); | |
105 | ||
106 | /** | |
107 | * @brief start_xmit - transmits an skb over the ll2 interface | |
108 | * | |
109 | * @param cdev | |
110 | * @param skb | |
111 | * | |
112 | * @return 0 on success, otherwise error value. | |
113 | */ | |
114 | int (*start_xmit)(struct qed_dev *cdev, struct sk_buff *skb); | |
115 | ||
116 | /** | |
117 | * @brief register_cb_ops - protocol driver register the callback for Rx/Tx | |
118 | * packets. Should be called before `start'. | |
119 | * | |
120 | * @param cdev | |
121 | * @param cookie - to be passed to the callback functions. | |
122 | * @param ops - the callback functions to register for Rx / Tx. | |
123 | * | |
124 | * @return 0 on success, otherwise error value. | |
125 | */ | |
126 | void (*register_cb_ops)(struct qed_dev *cdev, | |
127 | const struct qed_ll2_cb_ops *ops, | |
128 | void *cookie); | |
129 | ||
130 | /** | |
131 | * @brief get LL2 related statistics | |
132 | * | |
133 | * @param cdev | |
134 | * @param stats - pointer to struct that would be filled with stats | |
135 | * | |
136 | * @return 0 on success, error otherwise. | |
137 | */ | |
138 | int (*get_stats)(struct qed_dev *cdev, struct qed_ll2_stats *stats); | |
139 | }; | |
140 | ||
141 | #ifdef CONFIG_QED_LL2 | |
142 | int qed_ll2_alloc_if(struct qed_dev *); | |
143 | void qed_ll2_dealloc_if(struct qed_dev *); | |
144 | #else | |
145 | static const struct qed_ll2_ops qed_ll2_ops_pass = { | |
146 | .start = NULL, | |
147 | .stop = NULL, | |
148 | .start_xmit = NULL, | |
149 | .register_cb_ops = NULL, | |
150 | .get_stats = NULL, | |
151 | }; | |
152 | ||
153 | static inline int qed_ll2_alloc_if(struct qed_dev *cdev) | |
154 | { | |
155 | return 0; | |
156 | } | |
157 | ||
158 | static inline void qed_ll2_dealloc_if(struct qed_dev *cdev) | |
159 | { | |
160 | } | |
161 | #endif | |
162 | #endif |