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[net-next-2.6.git] / drivers / net / benet / be.h
CommitLineData
6b7c5b94 1/*
294aedcf 2 * Copyright (C) 2005 - 2010 ServerEngines
6b7c5b94
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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
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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87#define BE_MAX_VF 32
88
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89struct be_dma_mem {
90 void *va;
91 dma_addr_t dma;
92 u32 size;
93};
94
95struct be_queue_info {
96 struct be_dma_mem dma_mem;
97 u16 len;
98 u16 entry_size; /* Size of an element in the queue */
99 u16 id;
100 u16 tail, head;
101 bool created;
102 atomic_t used; /* Number of valid elements in the queue */
103};
104
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105static inline u32 MODULO(u16 val, u16 limit)
106{
107 BUG_ON(limit & (limit - 1));
108 return val & (limit - 1);
109}
110
111static inline void index_adv(u16 *index, u16 val, u16 limit)
112{
113 *index = MODULO((*index + val), limit);
114}
115
116static inline void index_inc(u16 *index, u16 limit)
117{
118 *index = MODULO((*index + 1), limit);
119}
120
121static inline void *queue_head_node(struct be_queue_info *q)
122{
123 return q->dma_mem.va + q->head * q->entry_size;
124}
125
126static inline void *queue_tail_node(struct be_queue_info *q)
127{
128 return q->dma_mem.va + q->tail * q->entry_size;
129}
130
131static inline void queue_head_inc(struct be_queue_info *q)
132{
133 index_inc(&q->head, q->len);
134}
135
136static inline void queue_tail_inc(struct be_queue_info *q)
137{
138 index_inc(&q->tail, q->len);
139}
140
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141struct be_eq_obj {
142 struct be_queue_info q;
143 char desc[32];
144
145 /* Adaptive interrupt coalescing (AIC) info */
146 bool enable_aic;
147 u16 min_eqd; /* in usecs */
148 u16 max_eqd; /* in usecs */
149 u16 cur_eqd; /* in usecs */
150
151 struct napi_struct napi;
152};
153
154struct be_mcc_obj {
155 struct be_queue_info q;
156 struct be_queue_info cq;
7a1e9b20 157 bool rearm_cq;
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158};
159
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160struct be_drvr_stats {
161 u32 be_tx_reqs; /* number of TX requests initiated */
162 u32 be_tx_stops; /* number of times TX Q was stopped */
163 u32 be_fwd_reqs; /* number of send reqs through forwarding i/f */
164 u32 be_tx_wrbs; /* number of tx WRBs used */
165 u32 be_tx_events; /* number of tx completion events */
166 u32 be_tx_compl; /* number of tx completion entries processed */
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167 ulong be_tx_jiffies;
168 u64 be_tx_bytes;
169 u64 be_tx_bytes_prev;
91992e44 170 u64 be_tx_pkts;
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171 u32 be_tx_rate;
172
173 u32 cache_barrier[16];
174
175 u32 be_ethrx_post_fail;/* number of ethrx buffer alloc failures */
b7b83ac3 176 u32 be_rx_polls; /* number of times NAPI called poll function */
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177 u32 be_rx_events; /* number of ucast rx completion events */
178 u32 be_rx_compl; /* number of rx completion entries processed */
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179 ulong be_rx_jiffies;
180 u64 be_rx_bytes;
181 u64 be_rx_bytes_prev;
91992e44 182 u64 be_rx_pkts;
6b7c5b94 183 u32 be_rx_rate;
1ef78abe 184 u32 be_rx_mcast_pkt;
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185 /* number of non ether type II frames dropped where
186 * frame len > length field of Mac Hdr */
187 u32 be_802_3_dropped_frames;
188 /* number of non ether type II frames malformed where
189 * in frame len < length field of Mac Hdr */
190 u32 be_802_3_malformed_frames;
191 u32 be_rxcp_err; /* Num rx completion entries w/ err set. */
192 ulong rx_fps_jiffies; /* jiffies at last FPS calc */
193 u32 be_rx_frags;
194 u32 be_prev_rx_frags;
195 u32 be_rx_fps; /* Rx frags per second */
196};
197
198struct be_stats_obj {
199 struct be_drvr_stats drvr_stats;
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200 struct be_dma_mem cmd;
201};
202
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203struct be_tx_obj {
204 struct be_queue_info q;
205 struct be_queue_info cq;
206 /* Remember the skbs that were transmitted */
207 struct sk_buff *sent_skb_list[TX_Q_LEN];
208};
209
210/* Struct to remember the pages posted for rx frags */
211struct be_rx_page_info {
212 struct page *page;
fac6da5b 213 DEFINE_DMA_UNMAP_ADDR(bus);
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214 u16 page_offset;
215 bool last_page_user;
216};
217
218struct be_rx_obj {
219 struct be_queue_info q;
220 struct be_queue_info cq;
221 struct be_rx_page_info page_info_tbl[RX_Q_LEN];
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222};
223
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224struct be_vf_cfg {
225 unsigned char vf_mac_addr[ETH_ALEN];
226 u32 vf_if_handle;
227 u32 vf_pmac_id;
1da87b7f 228 u16 vf_vlan_tag;
e1d18735 229 u32 vf_tx_rate;
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230};
231
6b7c5b94 232#define BE_NUM_MSIX_VECTORS 2 /* 1 each for Tx and Rx */
9cd9000b 233#define BE_INVALID_PMAC_ID 0xffffffff
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234struct be_adapter {
235 struct pci_dev *pdev;
236 struct net_device *netdev;
237
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238 u8 __iomem *csr;
239 u8 __iomem *db; /* Door Bell */
240 u8 __iomem *pcicfg; /* PCI config space */
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241
242 spinlock_t mbox_lock; /* For serializing mbox cmds to BE card */
243 struct be_dma_mem mbox_mem;
244 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
245 * is stored for freeing purpose */
246 struct be_dma_mem mbox_mem_alloced;
247
248 struct be_mcc_obj mcc_obj;
249 spinlock_t mcc_lock; /* For serializing mcc cmds to BE card */
250 spinlock_t mcc_cq_lock;
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251
252 struct msix_entry msix_entries[BE_NUM_MSIX_VECTORS];
253 bool msix_enabled;
254 bool isr_registered;
255
256 /* TX Rings */
257 struct be_eq_obj tx_eq;
258 struct be_tx_obj tx_obj;
259
260 u32 cache_line_break[8];
261
262 /* Rx rings */
263 struct be_eq_obj rx_eq;
264 struct be_rx_obj rx_obj;
265 u32 big_page_size; /* Compounded page size shared by rx wrbs */
ea1dae11 266 bool rx_post_starved; /* Zero rx frags have been posted to BE */
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267
268 struct vlan_group *vlan_grp;
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269 u16 vlans_added;
270 u16 max_vlans; /* Number of vlans supported */
6b7c5b94 271 u8 vlan_tag[VLAN_GROUP_ARRAY_LEN];
e7b909a6 272 struct be_dma_mem mc_cmd_mem;
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273
274 struct be_stats_obj stats;
275 /* Work queue used to perform periodic tasks like getting statistics */
276 struct delayed_work work;
277
278 /* Ethtool knobs and info */
279 bool rx_csum; /* BE card must perform rx-checksumming */
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280 char fw_ver[FW_VER_LEN];
281 u32 if_handle; /* Used to configure filtering */
282 u32 pmac_id; /* MAC addr handle used by BE card */
283
cf588477 284 bool eeh_err;
a8f447bd 285 bool link_up;
6b7c5b94 286 u32 port_num;
24307eef 287 bool promiscuous;
71d8d1b5 288 bool wol;
3486be29 289 u32 function_mode;
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290 u32 rx_fc; /* Rx flow control */
291 u32 tx_fc; /* Tx flow control */
7c185276 292 bool ue_detected;
0fc48c37 293 bool stats_ioctl_sent;
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294 int link_speed;
295 u8 port_type;
16c02145 296 u8 transceiver;
ee3cb629 297 u8 autoneg;
7b139c83 298 u8 generation; /* BladeEngine ASIC generation */
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299 u32 flash_status;
300 struct completion flash_compl;
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301
302 bool sriov_enabled;
64600ea5 303 struct be_vf_cfg vf_cfg[BE_MAX_VF];
ba343c77 304 u8 base_eq_id;
344dbf10 305 u8 is_virtfn;
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306};
307
344dbf10 308#define be_physfn(adapter) (!adapter->is_virtfn)
ba343c77 309
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310/* BladeEngine Generation numbers */
311#define BE_GEN2 2
312#define BE_GEN3 3
313
0fc0b732 314extern const struct ethtool_ops be_ethtool_ops;
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315
316#define drvr_stats(adapter) (&adapter->stats.drvr_stats)
317
318#define BE_SET_NETDEV_OPS(netdev, ops) (netdev->netdev_ops = ops)
319
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320#define PAGE_SHIFT_4K 12
321#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
322
323/* Returns number of pages spanned by the data starting at the given addr */
324#define PAGES_4K_SPANNED(_address, size) \
325 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
326 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
327
328/* Byte offset into the page corresponding to given address */
329#define OFFSET_IN_PAGE(addr) \
330 ((size_t)(addr) & (PAGE_SIZE_4K-1))
331
332/* Returns bit offset within a DWORD of a bitfield */
333#define AMAP_BIT_OFFSET(_struct, field) \
334 (((size_t)&(((_struct *)0)->field))%32)
335
336/* Returns the bit mask of the field that is NOT shifted into location. */
337static inline u32 amap_mask(u32 bitsize)
338{
339 return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
340}
341
342static inline void
343amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
344{
345 u32 *dw = (u32 *) ptr + dw_offset;
346 *dw &= ~(mask << offset);
347 *dw |= (mask & value) << offset;
348}
349
350#define AMAP_SET_BITS(_struct, field, ptr, val) \
351 amap_set(ptr, \
352 offsetof(_struct, field)/32, \
353 amap_mask(sizeof(((_struct *)0)->field)), \
354 AMAP_BIT_OFFSET(_struct, field), \
355 val)
356
357static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
358{
359 u32 *dw = (u32 *) ptr;
360 return mask & (*(dw + dw_offset) >> offset);
361}
362
363#define AMAP_GET_BITS(_struct, field, ptr) \
364 amap_get(ptr, \
365 offsetof(_struct, field)/32, \
366 amap_mask(sizeof(((_struct *)0)->field)), \
367 AMAP_BIT_OFFSET(_struct, field))
368
369#define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
370#define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
371static inline void swap_dws(void *wrb, int len)
372{
373#ifdef __BIG_ENDIAN
374 u32 *dw = wrb;
375 BUG_ON(len % 4);
376 do {
377 *dw = cpu_to_le32(*dw);
378 dw++;
379 len -= 4;
380 } while (len);
381#endif /* __BIG_ENDIAN */
382}
383
384static inline u8 is_tcp_pkt(struct sk_buff *skb)
385{
386 u8 val = 0;
387
388 if (ip_hdr(skb)->version == 4)
389 val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
390 else if (ip_hdr(skb)->version == 6)
391 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
392
393 return val;
394}
395
396static inline u8 is_udp_pkt(struct sk_buff *skb)
397{
398 u8 val = 0;
399
400 if (ip_hdr(skb)->version == 4)
401 val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
402 else if (ip_hdr(skb)->version == 6)
403 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
404
405 return val;
406}
407
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408static inline void be_check_sriov_fn_type(struct be_adapter *adapter)
409{
410 u8 data;
411
412 pci_write_config_byte(adapter->pdev, 0xFE, 0xAA);
413 pci_read_config_byte(adapter->pdev, 0xFE, &data);
414 adapter->is_virtfn = (data != 0xAA);
415}
416
8788fdc2 417extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
5fb379ee 418 u16 num_popped);
8788fdc2 419extern void be_link_status_update(struct be_adapter *adapter, bool link_up);
b31c50a7 420extern void netdev_stats_update(struct be_adapter *adapter);
84517482 421extern int be_load_fw(struct be_adapter *adapter, u8 *func);
6b7c5b94 422#endif /* BE_H */