2 * Copyright (c) 2010 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
26 #define TOE_TX_CSUM_OL 0x00000001
27 #define TOE_RX_CSUM_OL 0x00000002
29 /* For supporting multiple interfaces */
30 #define BRCMF_MAX_IFS 16
32 #define DOT11_MAX_DEFAULT_KEYS 4
34 /* Small, medium and maximum buffer size for dcmd
36 #define BRCMF_DCMD_SMLEN 256
37 #define BRCMF_DCMD_MEDLEN 1536
38 #define BRCMF_DCMD_MAXLEN 8192
40 /* IOCTL from host to device are limited in lenght. A device can only handle
41 * ethernet frame size. This limitation is to be applied by protocol layer.
43 #define BRCMF_TX_IOCTL_MAX_MSG_SIZE (ETH_FRAME_LEN+ETH_FCS_LEN)
45 #define BRCMF_AMPDU_RX_REORDER_MAXFLOWS 256
47 /* Length of firmware version string stored for
48 * ethtool driver info which uses 32 bytes as well.
50 #define BRCMF_DRIVER_FIRMWARE_VERSION_LEN 32
53 * struct brcmf_ampdu_rx_reorder - AMPDU receive reorder info
55 * @pktslots: dynamic allocated array for ordering AMPDU packets.
56 * @flow_id: AMPDU flow identifier.
57 * @cur_idx: last AMPDU index from firmware.
58 * @exp_idx: expected next AMPDU index.
59 * @max_idx: maximum amount of packets per AMPDU.
60 * @pend_pkts: number of packets currently in @pktslots.
62 struct brcmf_ampdu_rx_reorder {
63 struct sk_buff **pktslots;
71 /* Forward decls for struct brcmf_pub (see below) */
72 struct brcmf_proto; /* device communication protocol info */
73 struct brcmf_cfg80211_dev; /* cfg80211 device info */
74 struct brcmf_fws_info; /* firmware signalling info */
76 /* Common structure for module and instance linkage */
79 struct brcmf_bus *bus_if;
80 struct brcmf_proto *proto;
81 struct brcmf_cfg80211_info *config;
83 /* Internal brcmf items */
84 uint hdrlen; /* Total BRCMF header length (proto + bus) */
85 uint rxsz; /* Rx buffer size bus module should use */
86 u8 wme_dp; /* wme discard priority */
88 /* Dongle media info */
89 char fwver[BRCMF_DRIVER_FIRMWARE_VERSION_LEN];
90 u8 mac[ETH_ALEN]; /* MAC address obtained from dongle */
92 /* Multicast data packets sent to dongle */
93 unsigned long tx_multicast;
95 struct brcmf_if *iflist[BRCMF_MAX_IFS];
97 struct mutex proto_block;
98 unsigned char proto_buf[BRCMF_DCMD_MAXLEN];
100 struct brcmf_fweh_info fweh;
102 struct brcmf_fws_info *fws;
104 struct brcmf_ampdu_rx_reorder
105 *reorder_flows[BRCMF_AMPDU_RX_REORDER_MAXFLOWS];
111 struct dentry *dbgfs_dir;
115 /* forward declarations */
116 struct brcmf_cfg80211_vif;
117 struct brcmf_fws_mac_descriptor;
120 * enum brcmf_netif_stop_reason - reason for stopping netif queue.
122 * @BRCMF_NETIF_STOP_REASON_FWS_FC:
123 * netif stopped due to firmware signalling flow control.
124 * @BRCMF_NETIF_STOP_REASON_FLOW:
125 * netif stopped due to flowring full.
127 enum brcmf_netif_stop_reason {
128 BRCMF_NETIF_STOP_REASON_FWS_FC = 1,
129 BRCMF_NETIF_STOP_REASON_FLOW = 2
133 * struct brcmf_if - interface control information.
135 * @drvr: points to device related information.
136 * @vif: points to cfg80211 specific interface information.
137 * @ndev: associated network device.
138 * @stats: interface specific network statistics.
139 * @setmacaddr_work: worker object for setting mac address.
140 * @multicast_work: worker object for multicast provisioning.
141 * @fws_desc: interface specific firmware-signalling descriptor.
142 * @ifidx: interface index in device firmware.
143 * @bssidx: index of bss associated with this interface.
144 * @mac_addr: assigned mac address.
145 * @netif_stop: bitmap indicates reason why netif queues are stopped.
146 * @netif_stop_lock: spinlock for update netif_stop from multiple sources.
147 * @pend_8021x_cnt: tracks outstanding number of 802.1x frames.
148 * @pend_8021x_wait: used for signalling change in count.
151 struct brcmf_pub *drvr;
152 struct brcmf_cfg80211_vif *vif;
153 struct net_device *ndev;
154 struct net_device_stats stats;
155 struct work_struct setmacaddr_work;
156 struct work_struct multicast_work;
157 struct brcmf_fws_mac_descriptor *fws_desc;
160 u8 mac_addr[ETH_ALEN];
162 spinlock_t netif_stop_lock;
163 atomic_t pend_8021x_cnt;
164 wait_queue_head_t pend_8021x_wait;
167 struct brcmf_skb_reorder_data {
171 int brcmf_netdev_wait_pend8021x(struct net_device *ndev);
173 /* Return pointer to interface name */
174 char *brcmf_ifname(struct brcmf_pub *drvr, int idx);
176 int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked);
177 struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx,
178 char *name, u8 *mac_addr);
179 void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx);
180 void brcmf_txflowblock_if(struct brcmf_if *ifp,
181 enum brcmf_netif_stop_reason reason, bool state);
182 void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp, u8 ifidx,
184 void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb);
186 /* Sets dongle media info (drv_version, mac address). */
187 int brcmf_c_preinit_dcmds(struct brcmf_if *ifp);
189 #endif /* _BRCMF_H_ */