Merge branches 'x86-alternatives-for-linus', 'x86-fpu-for-linus', 'x86-hwmon-for...
[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
e2619843 36#define DRV_VER "2.103.175u"
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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
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81#define MAX_RSS_QS 4 /* BE limit is 4 queues/port */
82#define BE_MAX_MSIX_VECTORS (MAX_RSS_QS + 1 + 1)/* RSS qs + 1 def Rx + Tx */
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83#define BE_NAPI_WEIGHT 64
84#define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */
85#define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST)
86
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87#define FW_VER_LEN 32
88
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89#define BE_MAX_VF 32
90
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91struct be_dma_mem {
92 void *va;
93 dma_addr_t dma;
94 u32 size;
95};
96
97struct be_queue_info {
98 struct be_dma_mem dma_mem;
99 u16 len;
100 u16 entry_size; /* Size of an element in the queue */
101 u16 id;
102 u16 tail, head;
103 bool created;
104 atomic_t used; /* Number of valid elements in the queue */
105};
106
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107static inline u32 MODULO(u16 val, u16 limit)
108{
109 BUG_ON(limit & (limit - 1));
110 return val & (limit - 1);
111}
112
113static inline void index_adv(u16 *index, u16 val, u16 limit)
114{
115 *index = MODULO((*index + val), limit);
116}
117
118static inline void index_inc(u16 *index, u16 limit)
119{
120 *index = MODULO((*index + 1), limit);
121}
122
123static inline void *queue_head_node(struct be_queue_info *q)
124{
125 return q->dma_mem.va + q->head * q->entry_size;
126}
127
128static inline void *queue_tail_node(struct be_queue_info *q)
129{
130 return q->dma_mem.va + q->tail * q->entry_size;
131}
132
133static inline void queue_head_inc(struct be_queue_info *q)
134{
135 index_inc(&q->head, q->len);
136}
137
138static inline void queue_tail_inc(struct be_queue_info *q)
139{
140 index_inc(&q->tail, q->len);
141}
142
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143struct be_eq_obj {
144 struct be_queue_info q;
145 char desc[32];
146
147 /* Adaptive interrupt coalescing (AIC) info */
148 bool enable_aic;
149 u16 min_eqd; /* in usecs */
150 u16 max_eqd; /* in usecs */
151 u16 cur_eqd; /* in usecs */
152
153 struct napi_struct napi;
154};
155
156struct be_mcc_obj {
157 struct be_queue_info q;
158 struct be_queue_info cq;
7a1e9b20 159 bool rearm_cq;
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160};
161
3abcdeda 162struct be_tx_stats {
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163 u32 be_tx_reqs; /* number of TX requests initiated */
164 u32 be_tx_stops; /* number of times TX Q was stopped */
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165 u32 be_tx_wrbs; /* number of tx WRBs used */
166 u32 be_tx_events; /* number of tx completion events */
167 u32 be_tx_compl; /* number of tx completion entries processed */
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168 ulong be_tx_jiffies;
169 u64 be_tx_bytes;
170 u64 be_tx_bytes_prev;
91992e44 171 u64 be_tx_pkts;
6b7c5b94 172 u32 be_tx_rate;
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173};
174
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175struct be_tx_obj {
176 struct be_queue_info q;
177 struct be_queue_info cq;
178 /* Remember the skbs that were transmitted */
179 struct sk_buff *sent_skb_list[TX_Q_LEN];
180};
181
182/* Struct to remember the pages posted for rx frags */
183struct be_rx_page_info {
184 struct page *page;
fac6da5b 185 DEFINE_DMA_UNMAP_ADDR(bus);
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186 u16 page_offset;
187 bool last_page_user;
188};
189
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190struct be_rx_stats {
191 u32 rx_post_fail;/* number of ethrx buffer alloc failures */
192 u32 rx_polls; /* number of times NAPI called poll function */
193 u32 rx_events; /* number of ucast rx completion events */
194 u32 rx_compl; /* number of rx completion entries processed */
195 ulong rx_jiffies;
196 u64 rx_bytes;
197 u64 rx_bytes_prev;
198 u64 rx_pkts;
199 u32 rx_rate;
200 u32 rx_mcast_pkts;
201 u32 rxcp_err; /* Num rx completion entries w/ err set. */
202 ulong rx_fps_jiffies; /* jiffies at last FPS calc */
203 u32 rx_frags;
204 u32 prev_rx_frags;
205 u32 rx_fps; /* Rx frags per second */
206};
207
6b7c5b94 208struct be_rx_obj {
3abcdeda 209 struct be_adapter *adapter;
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210 struct be_queue_info q;
211 struct be_queue_info cq;
212 struct be_rx_page_info page_info_tbl[RX_Q_LEN];
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213 struct be_eq_obj rx_eq;
214 struct be_rx_stats stats;
215 u8 rss_id;
216 bool rx_post_starved; /* Zero rx frags have been posted to BE */
217 u32 cache_line_barrier[16];
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218};
219
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220struct be_vf_cfg {
221 unsigned char vf_mac_addr[ETH_ALEN];
222 u32 vf_if_handle;
223 u32 vf_pmac_id;
1da87b7f 224 u16 vf_vlan_tag;
e1d18735 225 u32 vf_tx_rate;
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226};
227
9cd9000b 228#define BE_INVALID_PMAC_ID 0xffffffff
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229struct be_adapter {
230 struct pci_dev *pdev;
231 struct net_device *netdev;
232
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233 u8 __iomem *csr;
234 u8 __iomem *db; /* Door Bell */
235 u8 __iomem *pcicfg; /* PCI config space */
8788fdc2 236
2984961c 237 struct mutex mbox_lock; /* For serializing mbox cmds to BE card */
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238 struct be_dma_mem mbox_mem;
239 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
240 * is stored for freeing purpose */
241 struct be_dma_mem mbox_mem_alloced;
242
243 struct be_mcc_obj mcc_obj;
244 spinlock_t mcc_lock; /* For serializing mcc cmds to BE card */
245 spinlock_t mcc_cq_lock;
6b7c5b94 246
3abcdeda 247 struct msix_entry msix_entries[BE_MAX_MSIX_VECTORS];
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248 bool msix_enabled;
249 bool isr_registered;
250
251 /* TX Rings */
252 struct be_eq_obj tx_eq;
253 struct be_tx_obj tx_obj;
3abcdeda 254 struct be_tx_stats tx_stats;
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255
256 u32 cache_line_break[8];
257
258 /* Rx rings */
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259 struct be_rx_obj rx_obj[MAX_RSS_QS + 1]; /* one default non-rss Q */
260 u32 num_rx_qs;
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261 u32 big_page_size; /* Compounded page size shared by rx wrbs */
262
263 struct vlan_group *vlan_grp;
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264 u16 vlans_added;
265 u16 max_vlans; /* Number of vlans supported */
b738127d 266 u8 vlan_tag[VLAN_N_VID];
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267 u8 vlan_prio_bmap; /* Available Priority BitMap */
268 u16 recommended_prio; /* Recommended Priority */
e7b909a6 269 struct be_dma_mem mc_cmd_mem;
6b7c5b94 270
3abcdeda 271 struct be_dma_mem stats_cmd;
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272 /* Work queue used to perform periodic tasks like getting statistics */
273 struct delayed_work work;
274
275 /* Ethtool knobs and info */
276 bool rx_csum; /* BE card must perform rx-checksumming */
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277 char fw_ver[FW_VER_LEN];
278 u32 if_handle; /* Used to configure filtering */
279 u32 pmac_id; /* MAC addr handle used by BE card */
280
cf588477 281 bool eeh_err;
a8f447bd 282 bool link_up;
6b7c5b94 283 u32 port_num;
24307eef 284 bool promiscuous;
71d8d1b5 285 bool wol;
3486be29 286 u32 function_mode;
3abcdeda 287 u32 function_caps;
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288 u32 rx_fc; /* Rx flow control */
289 u32 tx_fc; /* Tx flow control */
7c185276 290 bool ue_detected;
0fc48c37 291 bool stats_ioctl_sent;
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292 int link_speed;
293 u8 port_type;
16c02145 294 u8 transceiver;
ee3cb629 295 u8 autoneg;
7b139c83 296 u8 generation; /* BladeEngine ASIC generation */
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297 u32 flash_status;
298 struct completion flash_compl;
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299
300 bool sriov_enabled;
64600ea5 301 struct be_vf_cfg vf_cfg[BE_MAX_VF];
ba343c77 302 u8 base_eq_id;
344dbf10 303 u8 is_virtfn;
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304};
305
344dbf10 306#define be_physfn(adapter) (!adapter->is_virtfn)
ba343c77 307
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308/* BladeEngine Generation numbers */
309#define BE_GEN2 2
310#define BE_GEN3 3
311
0fc0b732 312extern const struct ethtool_ops be_ethtool_ops;
6b7c5b94 313
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314#define tx_stats(adapter) (&adapter->tx_stats)
315#define rx_stats(rxo) (&rxo->stats)
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316
317#define BE_SET_NETDEV_OPS(netdev, ops) (netdev->netdev_ops = ops)
318
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319#define for_all_rx_queues(adapter, rxo, i) \
320 for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs; \
321 i++, rxo++)
322
323/* Just skip the first default non-rss queue */
324#define for_all_rss_queues(adapter, rxo, i) \
325 for (i = 0, rxo = &adapter->rx_obj[i+1]; i < (adapter->num_rx_qs - 1);\
326 i++, rxo++)
327
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328#define PAGE_SHIFT_4K 12
329#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
330
331/* Returns number of pages spanned by the data starting at the given addr */
332#define PAGES_4K_SPANNED(_address, size) \
333 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
334 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
335
336/* Byte offset into the page corresponding to given address */
337#define OFFSET_IN_PAGE(addr) \
338 ((size_t)(addr) & (PAGE_SIZE_4K-1))
339
340/* Returns bit offset within a DWORD of a bitfield */
341#define AMAP_BIT_OFFSET(_struct, field) \
342 (((size_t)&(((_struct *)0)->field))%32)
343
344/* Returns the bit mask of the field that is NOT shifted into location. */
345static inline u32 amap_mask(u32 bitsize)
346{
347 return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
348}
349
350static inline void
351amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
352{
353 u32 *dw = (u32 *) ptr + dw_offset;
354 *dw &= ~(mask << offset);
355 *dw |= (mask & value) << offset;
356}
357
358#define AMAP_SET_BITS(_struct, field, ptr, val) \
359 amap_set(ptr, \
360 offsetof(_struct, field)/32, \
361 amap_mask(sizeof(((_struct *)0)->field)), \
362 AMAP_BIT_OFFSET(_struct, field), \
363 val)
364
365static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
366{
367 u32 *dw = (u32 *) ptr;
368 return mask & (*(dw + dw_offset) >> offset);
369}
370
371#define AMAP_GET_BITS(_struct, field, ptr) \
372 amap_get(ptr, \
373 offsetof(_struct, field)/32, \
374 amap_mask(sizeof(((_struct *)0)->field)), \
375 AMAP_BIT_OFFSET(_struct, field))
376
377#define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
378#define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
379static inline void swap_dws(void *wrb, int len)
380{
381#ifdef __BIG_ENDIAN
382 u32 *dw = wrb;
383 BUG_ON(len % 4);
384 do {
385 *dw = cpu_to_le32(*dw);
386 dw++;
387 len -= 4;
388 } while (len);
389#endif /* __BIG_ENDIAN */
390}
391
392static inline u8 is_tcp_pkt(struct sk_buff *skb)
393{
394 u8 val = 0;
395
396 if (ip_hdr(skb)->version == 4)
397 val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
398 else if (ip_hdr(skb)->version == 6)
399 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
400
401 return val;
402}
403
404static inline u8 is_udp_pkt(struct sk_buff *skb)
405{
406 u8 val = 0;
407
408 if (ip_hdr(skb)->version == 4)
409 val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
410 else if (ip_hdr(skb)->version == 6)
411 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
412
413 return val;
414}
415
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416static inline void be_check_sriov_fn_type(struct be_adapter *adapter)
417{
418 u8 data;
419
420 pci_write_config_byte(adapter->pdev, 0xFE, 0xAA);
421 pci_read_config_byte(adapter->pdev, 0xFE, &data);
422 adapter->is_virtfn = (data != 0xAA);
423}
424
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425static inline void be_vf_eth_addr_generate(struct be_adapter *adapter, u8 *mac)
426{
427 u32 addr;
428
429 addr = jhash(adapter->netdev->dev_addr, ETH_ALEN, 0);
430
431 mac[5] = (u8)(addr & 0xFF);
432 mac[4] = (u8)((addr >> 8) & 0xFF);
433 mac[3] = (u8)((addr >> 16) & 0xFF);
434 mac[2] = 0xC9;
435 mac[1] = 0x00;
436 mac[0] = 0x00;
437}
438
8788fdc2 439extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
5fb379ee 440 u16 num_popped);
8788fdc2 441extern void be_link_status_update(struct be_adapter *adapter, bool link_up);
b31c50a7 442extern void netdev_stats_update(struct be_adapter *adapter);
84517482 443extern int be_load_fw(struct be_adapter *adapter, u8 *func);
6b7c5b94 444#endif /* BE_H */