include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / benet / be.h
CommitLineData
6b7c5b94 1/*
294aedcf 2 * Copyright (C) 2005 - 2010 ServerEngines
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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@serverengines.com
12 *
13 * ServerEngines
14 * 209 N. Fair Oaks Ave
15 * Sunnyvale, CA 94085
16 */
17
18#ifndef BE_H
19#define BE_H
20
21#include <linux/pci.h>
22#include <linux/etherdevice.h>
23#include <linux/version.h>
24#include <linux/delay.h>
25#include <net/tcp.h>
26#include <net/ip.h>
27#include <net/ipv6.h>
28#include <linux/if_vlan.h>
29#include <linux/workqueue.h>
30#include <linux/interrupt.h>
84517482 31#include <linux/firmware.h>
5a0e3ad6 32#include <linux/slab.h>
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33
34#include "be_hw.h"
35
9772a431 36#define DRV_VER "2.102.147u"
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37#define DRV_NAME "be2net"
38#define BE_NAME "ServerEngines BladeEngine2 10Gbps NIC"
12d7ea2c 39#define BE3_NAME "ServerEngines BladeEngine3 10Gbps NIC"
c4ca2374 40#define OC_NAME "Emulex OneConnect 10Gbps NIC"
12d7ea2c 41#define OC_NAME1 "Emulex OneConnect 10Gbps NIC (be3)"
35ecf03c 42#define DRV_DESC "ServerEngines BladeEngine 10Gbps NIC Driver"
6b7c5b94 43
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44#define BE_VENDOR_ID 0x19a2
45#define BE_DEVICE_ID1 0x211
12d7ea2c 46#define BE_DEVICE_ID2 0x221
c4ca2374 47#define OC_DEVICE_ID1 0x700
e254f6ec 48#define OC_DEVICE_ID2 0x710
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49
50static inline char *nic_name(struct pci_dev *pdev)
51{
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52 switch (pdev->device) {
53 case OC_DEVICE_ID1:
c4ca2374 54 return OC_NAME;
e254f6ec 55 case OC_DEVICE_ID2:
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56 return OC_NAME1;
57 case BE_DEVICE_ID2:
58 return BE3_NAME;
59 default:
c4ca2374 60 return BE_NAME;
12d7ea2c 61 }
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62}
63
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64/* Number of bytes of an RX frame that are copied to skb->data */
65#define BE_HDR_LEN 64
66#define BE_MAX_JUMBO_FRAME_SIZE 9018
67#define BE_MIN_MTU 256
68
69#define BE_NUM_VLANS_SUPPORTED 64
70#define BE_MAX_EQD 96
71#define BE_MAX_TX_FRAG_COUNT 30
72
73#define EVNT_Q_LEN 1024
74#define TX_Q_LEN 2048
75#define TX_CQ_LEN 1024
76#define RX_Q_LEN 1024 /* Does not support any other value */
77#define RX_CQ_LEN 1024
5fb379ee 78#define MCC_Q_LEN 128 /* total size not to exceed 8 pages */
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79#define MCC_CQ_LEN 256
80
81#define BE_NAPI_WEIGHT 64
82#define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */
83#define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST)
84
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85#define FW_VER_LEN 32
86
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87struct be_dma_mem {
88 void *va;
89 dma_addr_t dma;
90 u32 size;
91};
92
93struct be_queue_info {
94 struct be_dma_mem dma_mem;
95 u16 len;
96 u16 entry_size; /* Size of an element in the queue */
97 u16 id;
98 u16 tail, head;
99 bool created;
100 atomic_t used; /* Number of valid elements in the queue */
101};
102
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103static inline u32 MODULO(u16 val, u16 limit)
104{
105 BUG_ON(limit & (limit - 1));
106 return val & (limit - 1);
107}
108
109static inline void index_adv(u16 *index, u16 val, u16 limit)
110{
111 *index = MODULO((*index + val), limit);
112}
113
114static inline void index_inc(u16 *index, u16 limit)
115{
116 *index = MODULO((*index + 1), limit);
117}
118
119static inline void *queue_head_node(struct be_queue_info *q)
120{
121 return q->dma_mem.va + q->head * q->entry_size;
122}
123
124static inline void *queue_tail_node(struct be_queue_info *q)
125{
126 return q->dma_mem.va + q->tail * q->entry_size;
127}
128
129static inline void queue_head_inc(struct be_queue_info *q)
130{
131 index_inc(&q->head, q->len);
132}
133
134static inline void queue_tail_inc(struct be_queue_info *q)
135{
136 index_inc(&q->tail, q->len);
137}
138
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139struct be_eq_obj {
140 struct be_queue_info q;
141 char desc[32];
142
143 /* Adaptive interrupt coalescing (AIC) info */
144 bool enable_aic;
145 u16 min_eqd; /* in usecs */
146 u16 max_eqd; /* in usecs */
147 u16 cur_eqd; /* in usecs */
148
149 struct napi_struct napi;
150};
151
152struct be_mcc_obj {
153 struct be_queue_info q;
154 struct be_queue_info cq;
7a1e9b20 155 bool rearm_cq;
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156};
157
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158struct be_drvr_stats {
159 u32 be_tx_reqs; /* number of TX requests initiated */
160 u32 be_tx_stops; /* number of times TX Q was stopped */
161 u32 be_fwd_reqs; /* number of send reqs through forwarding i/f */
162 u32 be_tx_wrbs; /* number of tx WRBs used */
163 u32 be_tx_events; /* number of tx completion events */
164 u32 be_tx_compl; /* number of tx completion entries processed */
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165 ulong be_tx_jiffies;
166 u64 be_tx_bytes;
167 u64 be_tx_bytes_prev;
91992e44 168 u64 be_tx_pkts;
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169 u32 be_tx_rate;
170
171 u32 cache_barrier[16];
172
173 u32 be_ethrx_post_fail;/* number of ethrx buffer alloc failures */
b7b83ac3 174 u32 be_rx_polls; /* number of times NAPI called poll function */
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175 u32 be_rx_events; /* number of ucast rx completion events */
176 u32 be_rx_compl; /* number of rx completion entries processed */
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177 ulong be_rx_jiffies;
178 u64 be_rx_bytes;
179 u64 be_rx_bytes_prev;
91992e44 180 u64 be_rx_pkts;
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181 u32 be_rx_rate;
182 /* number of non ether type II frames dropped where
183 * frame len > length field of Mac Hdr */
184 u32 be_802_3_dropped_frames;
185 /* number of non ether type II frames malformed where
186 * in frame len < length field of Mac Hdr */
187 u32 be_802_3_malformed_frames;
188 u32 be_rxcp_err; /* Num rx completion entries w/ err set. */
189 ulong rx_fps_jiffies; /* jiffies at last FPS calc */
190 u32 be_rx_frags;
191 u32 be_prev_rx_frags;
192 u32 be_rx_fps; /* Rx frags per second */
193};
194
195struct be_stats_obj {
196 struct be_drvr_stats drvr_stats;
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197 struct be_dma_mem cmd;
198};
199
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200struct be_tx_obj {
201 struct be_queue_info q;
202 struct be_queue_info cq;
203 /* Remember the skbs that were transmitted */
204 struct sk_buff *sent_skb_list[TX_Q_LEN];
205};
206
207/* Struct to remember the pages posted for rx frags */
208struct be_rx_page_info {
209 struct page *page;
210 dma_addr_t bus;
211 u16 page_offset;
212 bool last_page_user;
213};
214
215struct be_rx_obj {
216 struct be_queue_info q;
217 struct be_queue_info cq;
218 struct be_rx_page_info page_info_tbl[RX_Q_LEN];
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219};
220
221#define BE_NUM_MSIX_VECTORS 2 /* 1 each for Tx and Rx */
222struct be_adapter {
223 struct pci_dev *pdev;
224 struct net_device *netdev;
225
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226 u8 __iomem *csr;
227 u8 __iomem *db; /* Door Bell */
228 u8 __iomem *pcicfg; /* PCI config space */
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229
230 spinlock_t mbox_lock; /* For serializing mbox cmds to BE card */
231 struct be_dma_mem mbox_mem;
232 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
233 * is stored for freeing purpose */
234 struct be_dma_mem mbox_mem_alloced;
235
236 struct be_mcc_obj mcc_obj;
237 spinlock_t mcc_lock; /* For serializing mcc cmds to BE card */
238 spinlock_t mcc_cq_lock;
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239
240 struct msix_entry msix_entries[BE_NUM_MSIX_VECTORS];
241 bool msix_enabled;
242 bool isr_registered;
243
244 /* TX Rings */
245 struct be_eq_obj tx_eq;
246 struct be_tx_obj tx_obj;
247
248 u32 cache_line_break[8];
249
250 /* Rx rings */
251 struct be_eq_obj rx_eq;
252 struct be_rx_obj rx_obj;
253 u32 big_page_size; /* Compounded page size shared by rx wrbs */
ea1dae11 254 bool rx_post_starved; /* Zero rx frags have been posted to BE */
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255
256 struct vlan_group *vlan_grp;
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257 u16 vlans_added;
258 u16 max_vlans; /* Number of vlans supported */
6b7c5b94 259 u8 vlan_tag[VLAN_GROUP_ARRAY_LEN];
e7b909a6 260 struct be_dma_mem mc_cmd_mem;
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261
262 struct be_stats_obj stats;
263 /* Work queue used to perform periodic tasks like getting statistics */
264 struct delayed_work work;
265
266 /* Ethtool knobs and info */
267 bool rx_csum; /* BE card must perform rx-checksumming */
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268 char fw_ver[FW_VER_LEN];
269 u32 if_handle; /* Used to configure filtering */
270 u32 pmac_id; /* MAC addr handle used by BE card */
271
cf588477 272 bool eeh_err;
a8f447bd 273 bool link_up;
6b7c5b94 274 u32 port_num;
24307eef 275 bool promiscuous;
71d8d1b5 276 bool wol;
dcb9b564 277 u32 cap;
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278 u32 rx_fc; /* Rx flow control */
279 u32 tx_fc; /* Tx flow control */
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280 int link_speed;
281 u8 port_type;
16c02145 282 u8 transceiver;
7b139c83 283 u8 generation; /* BladeEngine ASIC generation */
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284};
285
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286/* BladeEngine Generation numbers */
287#define BE_GEN2 2
288#define BE_GEN3 3
289
0fc0b732 290extern const struct ethtool_ops be_ethtool_ops;
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291
292#define drvr_stats(adapter) (&adapter->stats.drvr_stats)
293
294#define BE_SET_NETDEV_OPS(netdev, ops) (netdev->netdev_ops = ops)
295
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296#define PAGE_SHIFT_4K 12
297#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
298
299/* Returns number of pages spanned by the data starting at the given addr */
300#define PAGES_4K_SPANNED(_address, size) \
301 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
302 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
303
304/* Byte offset into the page corresponding to given address */
305#define OFFSET_IN_PAGE(addr) \
306 ((size_t)(addr) & (PAGE_SIZE_4K-1))
307
308/* Returns bit offset within a DWORD of a bitfield */
309#define AMAP_BIT_OFFSET(_struct, field) \
310 (((size_t)&(((_struct *)0)->field))%32)
311
312/* Returns the bit mask of the field that is NOT shifted into location. */
313static inline u32 amap_mask(u32 bitsize)
314{
315 return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
316}
317
318static inline void
319amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
320{
321 u32 *dw = (u32 *) ptr + dw_offset;
322 *dw &= ~(mask << offset);
323 *dw |= (mask & value) << offset;
324}
325
326#define AMAP_SET_BITS(_struct, field, ptr, val) \
327 amap_set(ptr, \
328 offsetof(_struct, field)/32, \
329 amap_mask(sizeof(((_struct *)0)->field)), \
330 AMAP_BIT_OFFSET(_struct, field), \
331 val)
332
333static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
334{
335 u32 *dw = (u32 *) ptr;
336 return mask & (*(dw + dw_offset) >> offset);
337}
338
339#define AMAP_GET_BITS(_struct, field, ptr) \
340 amap_get(ptr, \
341 offsetof(_struct, field)/32, \
342 amap_mask(sizeof(((_struct *)0)->field)), \
343 AMAP_BIT_OFFSET(_struct, field))
344
345#define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
346#define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
347static inline void swap_dws(void *wrb, int len)
348{
349#ifdef __BIG_ENDIAN
350 u32 *dw = wrb;
351 BUG_ON(len % 4);
352 do {
353 *dw = cpu_to_le32(*dw);
354 dw++;
355 len -= 4;
356 } while (len);
357#endif /* __BIG_ENDIAN */
358}
359
360static inline u8 is_tcp_pkt(struct sk_buff *skb)
361{
362 u8 val = 0;
363
364 if (ip_hdr(skb)->version == 4)
365 val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
366 else if (ip_hdr(skb)->version == 6)
367 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
368
369 return val;
370}
371
372static inline u8 is_udp_pkt(struct sk_buff *skb)
373{
374 u8 val = 0;
375
376 if (ip_hdr(skb)->version == 4)
377 val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
378 else if (ip_hdr(skb)->version == 6)
379 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
380
381 return val;
382}
383
8788fdc2 384extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
5fb379ee 385 u16 num_popped);
8788fdc2 386extern void be_link_status_update(struct be_adapter *adapter, bool link_up);
b31c50a7 387extern void netdev_stats_update(struct be_adapter *adapter);
84517482 388extern int be_load_fw(struct be_adapter *adapter, u8 *func);
6b7c5b94 389#endif /* BE_H */