]> bbs.cooldavid.org Git - net-next-2.6.git/blame - drivers/net/benet/be.h
be2net: Patch to determine if function is VF while running in guest OS.
[net-next-2.6.git] / drivers / net / benet / be.h
CommitLineData
6b7c5b94 1/*
294aedcf 2 * Copyright (C) 2005 - 2010 ServerEngines
6b7c5b94
SP
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>
6b7c5b94
SP
33
34#include "be_hw.h"
35
9772a431 36#define DRV_VER "2.102.147u"
6b7c5b94
SP
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
c4ca2374
AK
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
c4ca2374
AK
49
50static inline char *nic_name(struct pci_dev *pdev)
51{
12d7ea2c
AK
52 switch (pdev->device) {
53 case OC_DEVICE_ID1:
c4ca2374 54 return OC_NAME;
e254f6ec 55 case OC_DEVICE_ID2:
12d7ea2c
AK
56 return OC_NAME1;
57 case BE_DEVICE_ID2:
58 return BE3_NAME;
59 default:
c4ca2374 60 return BE_NAME;
12d7ea2c 61 }
c4ca2374
AK
62}
63
6b7c5b94
SP
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 */
6b7c5b94
SP
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
8788fdc2
SP
85#define FW_VER_LEN 32
86
ba343c77
SB
87#define BE_MAX_VF 32
88
6b7c5b94
SP
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
5fb379ee
SP
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
5fb379ee
SP
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;
5fb379ee
SP
158};
159
6b7c5b94
SP
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 */
4097f663
SP
167 ulong be_tx_jiffies;
168 u64 be_tx_bytes;
169 u64 be_tx_bytes_prev;
91992e44 170 u64 be_tx_pkts;
6b7c5b94
SP
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 */
6b7c5b94
SP
177 u32 be_rx_events; /* number of ucast rx completion events */
178 u32 be_rx_compl; /* number of rx completion entries processed */
4097f663
SP
179 ulong be_rx_jiffies;
180 u64 be_rx_bytes;
181 u64 be_rx_bytes_prev;
91992e44 182 u64 be_rx_pkts;
6b7c5b94
SP
183 u32 be_rx_rate;
184 /* number of non ether type II frames dropped where
185 * frame len > length field of Mac Hdr */
186 u32 be_802_3_dropped_frames;
187 /* number of non ether type II frames malformed where
188 * in frame len < length field of Mac Hdr */
189 u32 be_802_3_malformed_frames;
190 u32 be_rxcp_err; /* Num rx completion entries w/ err set. */
191 ulong rx_fps_jiffies; /* jiffies at last FPS calc */
192 u32 be_rx_frags;
193 u32 be_prev_rx_frags;
194 u32 be_rx_fps; /* Rx frags per second */
195};
196
197struct be_stats_obj {
198 struct be_drvr_stats drvr_stats;
6b7c5b94
SP
199 struct be_dma_mem cmd;
200};
201
6b7c5b94
SP
202struct be_tx_obj {
203 struct be_queue_info q;
204 struct be_queue_info cq;
205 /* Remember the skbs that were transmitted */
206 struct sk_buff *sent_skb_list[TX_Q_LEN];
207};
208
209/* Struct to remember the pages posted for rx frags */
210struct be_rx_page_info {
211 struct page *page;
fac6da5b 212 DEFINE_DMA_UNMAP_ADDR(bus);
6b7c5b94
SP
213 u16 page_offset;
214 bool last_page_user;
215};
216
217struct be_rx_obj {
218 struct be_queue_info q;
219 struct be_queue_info cq;
220 struct be_rx_page_info page_info_tbl[RX_Q_LEN];
6b7c5b94
SP
221};
222
223#define BE_NUM_MSIX_VECTORS 2 /* 1 each for Tx and Rx */
224struct be_adapter {
225 struct pci_dev *pdev;
226 struct net_device *netdev;
227
8788fdc2
SP
228 u8 __iomem *csr;
229 u8 __iomem *db; /* Door Bell */
230 u8 __iomem *pcicfg; /* PCI config space */
8788fdc2
SP
231
232 spinlock_t mbox_lock; /* For serializing mbox cmds to BE card */
233 struct be_dma_mem mbox_mem;
234 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
235 * is stored for freeing purpose */
236 struct be_dma_mem mbox_mem_alloced;
237
238 struct be_mcc_obj mcc_obj;
239 spinlock_t mcc_lock; /* For serializing mcc cmds to BE card */
240 spinlock_t mcc_cq_lock;
6b7c5b94
SP
241
242 struct msix_entry msix_entries[BE_NUM_MSIX_VECTORS];
243 bool msix_enabled;
244 bool isr_registered;
245
246 /* TX Rings */
247 struct be_eq_obj tx_eq;
248 struct be_tx_obj tx_obj;
249
250 u32 cache_line_break[8];
251
252 /* Rx rings */
253 struct be_eq_obj rx_eq;
254 struct be_rx_obj rx_obj;
255 u32 big_page_size; /* Compounded page size shared by rx wrbs */
ea1dae11 256 bool rx_post_starved; /* Zero rx frags have been posted to BE */
6b7c5b94
SP
257
258 struct vlan_group *vlan_grp;
82903e4b
AK
259 u16 vlans_added;
260 u16 max_vlans; /* Number of vlans supported */
6b7c5b94 261 u8 vlan_tag[VLAN_GROUP_ARRAY_LEN];
e7b909a6 262 struct be_dma_mem mc_cmd_mem;
6b7c5b94
SP
263
264 struct be_stats_obj stats;
265 /* Work queue used to perform periodic tasks like getting statistics */
266 struct delayed_work work;
267
268 /* Ethtool knobs and info */
269 bool rx_csum; /* BE card must perform rx-checksumming */
6b7c5b94
SP
270 char fw_ver[FW_VER_LEN];
271 u32 if_handle; /* Used to configure filtering */
272 u32 pmac_id; /* MAC addr handle used by BE card */
273
cf588477 274 bool eeh_err;
a8f447bd 275 bool link_up;
6b7c5b94 276 u32 port_num;
24307eef 277 bool promiscuous;
71d8d1b5 278 bool wol;
dcb9b564 279 u32 cap;
9e90c961
AK
280 u32 rx_fc; /* Rx flow control */
281 u32 tx_fc; /* Tx flow control */
0dffc83e
AK
282 int link_speed;
283 u8 port_type;
16c02145 284 u8 transceiver;
ee3cb629 285 u8 autoneg;
7b139c83 286 u8 generation; /* BladeEngine ASIC generation */
dd131e76
SB
287 u32 flash_status;
288 struct completion flash_compl;
ba343c77
SB
289
290 bool sriov_enabled;
291 u32 vf_if_handle[BE_MAX_VF];
292 u32 vf_pmac_id[BE_MAX_VF];
293 u8 base_eq_id;
344dbf10 294 u8 is_virtfn;
6b7c5b94
SP
295};
296
344dbf10 297#define be_physfn(adapter) (!adapter->is_virtfn)
ba343c77 298
7b139c83
AK
299/* BladeEngine Generation numbers */
300#define BE_GEN2 2
301#define BE_GEN3 3
302
0fc0b732 303extern const struct ethtool_ops be_ethtool_ops;
6b7c5b94
SP
304
305#define drvr_stats(adapter) (&adapter->stats.drvr_stats)
306
307#define BE_SET_NETDEV_OPS(netdev, ops) (netdev->netdev_ops = ops)
308
6b7c5b94
SP
309#define PAGE_SHIFT_4K 12
310#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
311
312/* Returns number of pages spanned by the data starting at the given addr */
313#define PAGES_4K_SPANNED(_address, size) \
314 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
315 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
316
317/* Byte offset into the page corresponding to given address */
318#define OFFSET_IN_PAGE(addr) \
319 ((size_t)(addr) & (PAGE_SIZE_4K-1))
320
321/* Returns bit offset within a DWORD of a bitfield */
322#define AMAP_BIT_OFFSET(_struct, field) \
323 (((size_t)&(((_struct *)0)->field))%32)
324
325/* Returns the bit mask of the field that is NOT shifted into location. */
326static inline u32 amap_mask(u32 bitsize)
327{
328 return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
329}
330
331static inline void
332amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
333{
334 u32 *dw = (u32 *) ptr + dw_offset;
335 *dw &= ~(mask << offset);
336 *dw |= (mask & value) << offset;
337}
338
339#define AMAP_SET_BITS(_struct, field, ptr, val) \
340 amap_set(ptr, \
341 offsetof(_struct, field)/32, \
342 amap_mask(sizeof(((_struct *)0)->field)), \
343 AMAP_BIT_OFFSET(_struct, field), \
344 val)
345
346static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
347{
348 u32 *dw = (u32 *) ptr;
349 return mask & (*(dw + dw_offset) >> offset);
350}
351
352#define AMAP_GET_BITS(_struct, field, ptr) \
353 amap_get(ptr, \
354 offsetof(_struct, field)/32, \
355 amap_mask(sizeof(((_struct *)0)->field)), \
356 AMAP_BIT_OFFSET(_struct, field))
357
358#define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
359#define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
360static inline void swap_dws(void *wrb, int len)
361{
362#ifdef __BIG_ENDIAN
363 u32 *dw = wrb;
364 BUG_ON(len % 4);
365 do {
366 *dw = cpu_to_le32(*dw);
367 dw++;
368 len -= 4;
369 } while (len);
370#endif /* __BIG_ENDIAN */
371}
372
373static inline u8 is_tcp_pkt(struct sk_buff *skb)
374{
375 u8 val = 0;
376
377 if (ip_hdr(skb)->version == 4)
378 val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
379 else if (ip_hdr(skb)->version == 6)
380 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
381
382 return val;
383}
384
385static inline u8 is_udp_pkt(struct sk_buff *skb)
386{
387 u8 val = 0;
388
389 if (ip_hdr(skb)->version == 4)
390 val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
391 else if (ip_hdr(skb)->version == 6)
392 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
393
394 return val;
395}
396
344dbf10
SB
397static inline void be_check_sriov_fn_type(struct be_adapter *adapter)
398{
399 u8 data;
400
401 pci_write_config_byte(adapter->pdev, 0xFE, 0xAA);
402 pci_read_config_byte(adapter->pdev, 0xFE, &data);
403 adapter->is_virtfn = (data != 0xAA);
404}
405
8788fdc2 406extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
5fb379ee 407 u16 num_popped);
8788fdc2 408extern void be_link_status_update(struct be_adapter *adapter, bool link_up);
b31c50a7 409extern void netdev_stats_update(struct be_adapter *adapter);
84517482 410extern int be_load_fw(struct be_adapter *adapter, u8 *func);
6b7c5b94 411#endif /* BE_H */