Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / benet / be.h
CommitLineData
6b7c5b94
SP
1/*
2 * Copyright (C) 2005 - 2009 ServerEngines
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>
6b7c5b94
SP
32
33#include "be_hw.h"
34
84517482 35#define DRV_VER "2.101.205"
6b7c5b94
SP
36#define DRV_NAME "be2net"
37#define BE_NAME "ServerEngines BladeEngine2 10Gbps NIC"
c4ca2374 38#define OC_NAME "Emulex OneConnect 10Gbps NIC"
6b7c5b94
SP
39#define DRV_DESC BE_NAME "Driver"
40
c4ca2374
AK
41#define BE_VENDOR_ID 0x19a2
42#define BE_DEVICE_ID1 0x211
43#define OC_DEVICE_ID1 0x700
44#define OC_DEVICE_ID2 0x701
45
46static inline char *nic_name(struct pci_dev *pdev)
47{
48 if (pdev->device == OC_DEVICE_ID1 || pdev->device == OC_DEVICE_ID2)
49 return OC_NAME;
50 else
51 return BE_NAME;
52}
53
6b7c5b94
SP
54/* Number of bytes of an RX frame that are copied to skb->data */
55#define BE_HDR_LEN 64
56#define BE_MAX_JUMBO_FRAME_SIZE 9018
57#define BE_MIN_MTU 256
58
59#define BE_NUM_VLANS_SUPPORTED 64
60#define BE_MAX_EQD 96
61#define BE_MAX_TX_FRAG_COUNT 30
62
63#define EVNT_Q_LEN 1024
64#define TX_Q_LEN 2048
65#define TX_CQ_LEN 1024
66#define RX_Q_LEN 1024 /* Does not support any other value */
67#define RX_CQ_LEN 1024
5fb379ee 68#define MCC_Q_LEN 128 /* total size not to exceed 8 pages */
6b7c5b94
SP
69#define MCC_CQ_LEN 256
70
71#define BE_NAPI_WEIGHT 64
72#define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */
73#define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST)
74
8788fdc2
SP
75#define FW_VER_LEN 32
76
6b7c5b94
SP
77struct be_dma_mem {
78 void *va;
79 dma_addr_t dma;
80 u32 size;
81};
82
83struct be_queue_info {
84 struct be_dma_mem dma_mem;
85 u16 len;
86 u16 entry_size; /* Size of an element in the queue */
87 u16 id;
88 u16 tail, head;
89 bool created;
90 atomic_t used; /* Number of valid elements in the queue */
91};
92
5fb379ee
SP
93static inline u32 MODULO(u16 val, u16 limit)
94{
95 BUG_ON(limit & (limit - 1));
96 return val & (limit - 1);
97}
98
99static inline void index_adv(u16 *index, u16 val, u16 limit)
100{
101 *index = MODULO((*index + val), limit);
102}
103
104static inline void index_inc(u16 *index, u16 limit)
105{
106 *index = MODULO((*index + 1), limit);
107}
108
109static inline void *queue_head_node(struct be_queue_info *q)
110{
111 return q->dma_mem.va + q->head * q->entry_size;
112}
113
114static inline void *queue_tail_node(struct be_queue_info *q)
115{
116 return q->dma_mem.va + q->tail * q->entry_size;
117}
118
119static inline void queue_head_inc(struct be_queue_info *q)
120{
121 index_inc(&q->head, q->len);
122}
123
124static inline void queue_tail_inc(struct be_queue_info *q)
125{
126 index_inc(&q->tail, q->len);
127}
128
5fb379ee
SP
129struct be_eq_obj {
130 struct be_queue_info q;
131 char desc[32];
132
133 /* Adaptive interrupt coalescing (AIC) info */
134 bool enable_aic;
135 u16 min_eqd; /* in usecs */
136 u16 max_eqd; /* in usecs */
137 u16 cur_eqd; /* in usecs */
138
139 struct napi_struct napi;
140};
141
142struct be_mcc_obj {
143 struct be_queue_info q;
144 struct be_queue_info cq;
145};
146
6b7c5b94
SP
147struct be_drvr_stats {
148 u32 be_tx_reqs; /* number of TX requests initiated */
149 u32 be_tx_stops; /* number of times TX Q was stopped */
150 u32 be_fwd_reqs; /* number of send reqs through forwarding i/f */
151 u32 be_tx_wrbs; /* number of tx WRBs used */
152 u32 be_tx_events; /* number of tx completion events */
153 u32 be_tx_compl; /* number of tx completion entries processed */
4097f663
SP
154 ulong be_tx_jiffies;
155 u64 be_tx_bytes;
156 u64 be_tx_bytes_prev;
6b7c5b94
SP
157 u32 be_tx_rate;
158
159 u32 cache_barrier[16];
160
161 u32 be_ethrx_post_fail;/* number of ethrx buffer alloc failures */
162 u32 be_polls; /* number of times NAPI called poll function */
163 u32 be_rx_events; /* number of ucast rx completion events */
164 u32 be_rx_compl; /* number of rx completion entries processed */
4097f663
SP
165 ulong be_rx_jiffies;
166 u64 be_rx_bytes;
167 u64 be_rx_bytes_prev;
6b7c5b94
SP
168 u32 be_rx_rate;
169 /* number of non ether type II frames dropped where
170 * frame len > length field of Mac Hdr */
171 u32 be_802_3_dropped_frames;
172 /* number of non ether type II frames malformed where
173 * in frame len < length field of Mac Hdr */
174 u32 be_802_3_malformed_frames;
175 u32 be_rxcp_err; /* Num rx completion entries w/ err set. */
176 ulong rx_fps_jiffies; /* jiffies at last FPS calc */
177 u32 be_rx_frags;
178 u32 be_prev_rx_frags;
179 u32 be_rx_fps; /* Rx frags per second */
180};
181
182struct be_stats_obj {
183 struct be_drvr_stats drvr_stats;
184 struct net_device_stats net_stats;
185 struct be_dma_mem cmd;
186};
187
6b7c5b94
SP
188struct be_tx_obj {
189 struct be_queue_info q;
190 struct be_queue_info cq;
191 /* Remember the skbs that were transmitted */
192 struct sk_buff *sent_skb_list[TX_Q_LEN];
193};
194
195/* Struct to remember the pages posted for rx frags */
196struct be_rx_page_info {
197 struct page *page;
198 dma_addr_t bus;
199 u16 page_offset;
200 bool last_page_user;
201};
202
203struct be_rx_obj {
204 struct be_queue_info q;
205 struct be_queue_info cq;
206 struct be_rx_page_info page_info_tbl[RX_Q_LEN];
6b7c5b94
SP
207};
208
209#define BE_NUM_MSIX_VECTORS 2 /* 1 each for Tx and Rx */
210struct be_adapter {
211 struct pci_dev *pdev;
212 struct net_device *netdev;
213
8788fdc2
SP
214 u8 __iomem *csr;
215 u8 __iomem *db; /* Door Bell */
216 u8 __iomem *pcicfg; /* PCI config space */
8788fdc2
SP
217
218 spinlock_t mbox_lock; /* For serializing mbox cmds to BE card */
219 struct be_dma_mem mbox_mem;
220 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
221 * is stored for freeing purpose */
222 struct be_dma_mem mbox_mem_alloced;
223
224 struct be_mcc_obj mcc_obj;
225 spinlock_t mcc_lock; /* For serializing mcc cmds to BE card */
226 spinlock_t mcc_cq_lock;
6b7c5b94
SP
227
228 struct msix_entry msix_entries[BE_NUM_MSIX_VECTORS];
229 bool msix_enabled;
230 bool isr_registered;
231
232 /* TX Rings */
233 struct be_eq_obj tx_eq;
234 struct be_tx_obj tx_obj;
235
236 u32 cache_line_break[8];
237
238 /* Rx rings */
239 struct be_eq_obj rx_eq;
240 struct be_rx_obj rx_obj;
241 u32 big_page_size; /* Compounded page size shared by rx wrbs */
ea1dae11 242 bool rx_post_starved; /* Zero rx frags have been posted to BE */
6b7c5b94
SP
243
244 struct vlan_group *vlan_grp;
245 u16 num_vlans;
246 u8 vlan_tag[VLAN_GROUP_ARRAY_LEN];
247
248 struct be_stats_obj stats;
249 /* Work queue used to perform periodic tasks like getting statistics */
250 struct delayed_work work;
251
252 /* Ethtool knobs and info */
253 bool rx_csum; /* BE card must perform rx-checksumming */
6b7c5b94
SP
254 char fw_ver[FW_VER_LEN];
255 u32 if_handle; /* Used to configure filtering */
256 u32 pmac_id; /* MAC addr handle used by BE card */
257
a8f447bd 258 bool link_up;
6b7c5b94 259 u32 port_num;
24307eef 260 bool promiscuous;
dcb9b564 261 u32 cap;
6b7c5b94
SP
262};
263
0fc0b732 264extern const struct ethtool_ops be_ethtool_ops;
6b7c5b94
SP
265
266#define drvr_stats(adapter) (&adapter->stats.drvr_stats)
267
eec368fb
SP
268static inline unsigned int be_pci_func(struct be_adapter *adapter)
269{
270 return PCI_FUNC(adapter->pdev->devfn);
271}
272
6b7c5b94
SP
273#define BE_SET_NETDEV_OPS(netdev, ops) (netdev->netdev_ops = ops)
274
6b7c5b94
SP
275#define PAGE_SHIFT_4K 12
276#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
277
278/* Returns number of pages spanned by the data starting at the given addr */
279#define PAGES_4K_SPANNED(_address, size) \
280 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
281 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
282
283/* Byte offset into the page corresponding to given address */
284#define OFFSET_IN_PAGE(addr) \
285 ((size_t)(addr) & (PAGE_SIZE_4K-1))
286
287/* Returns bit offset within a DWORD of a bitfield */
288#define AMAP_BIT_OFFSET(_struct, field) \
289 (((size_t)&(((_struct *)0)->field))%32)
290
291/* Returns the bit mask of the field that is NOT shifted into location. */
292static inline u32 amap_mask(u32 bitsize)
293{
294 return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
295}
296
297static inline void
298amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
299{
300 u32 *dw = (u32 *) ptr + dw_offset;
301 *dw &= ~(mask << offset);
302 *dw |= (mask & value) << offset;
303}
304
305#define AMAP_SET_BITS(_struct, field, ptr, val) \
306 amap_set(ptr, \
307 offsetof(_struct, field)/32, \
308 amap_mask(sizeof(((_struct *)0)->field)), \
309 AMAP_BIT_OFFSET(_struct, field), \
310 val)
311
312static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
313{
314 u32 *dw = (u32 *) ptr;
315 return mask & (*(dw + dw_offset) >> offset);
316}
317
318#define AMAP_GET_BITS(_struct, field, ptr) \
319 amap_get(ptr, \
320 offsetof(_struct, field)/32, \
321 amap_mask(sizeof(((_struct *)0)->field)), \
322 AMAP_BIT_OFFSET(_struct, field))
323
324#define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
325#define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
326static inline void swap_dws(void *wrb, int len)
327{
328#ifdef __BIG_ENDIAN
329 u32 *dw = wrb;
330 BUG_ON(len % 4);
331 do {
332 *dw = cpu_to_le32(*dw);
333 dw++;
334 len -= 4;
335 } while (len);
336#endif /* __BIG_ENDIAN */
337}
338
339static inline u8 is_tcp_pkt(struct sk_buff *skb)
340{
341 u8 val = 0;
342
343 if (ip_hdr(skb)->version == 4)
344 val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
345 else if (ip_hdr(skb)->version == 6)
346 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
347
348 return val;
349}
350
351static inline u8 is_udp_pkt(struct sk_buff *skb)
352{
353 u8 val = 0;
354
355 if (ip_hdr(skb)->version == 4)
356 val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
357 else if (ip_hdr(skb)->version == 6)
358 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
359
360 return val;
361}
362
8788fdc2 363extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
5fb379ee 364 u16 num_popped);
8788fdc2 365extern void be_link_status_update(struct be_adapter *adapter, bool link_up);
b31c50a7 366extern void netdev_stats_update(struct be_adapter *adapter);
84517482 367extern int be_load_fw(struct be_adapter *adapter, u8 *func);
6b7c5b94 368#endif /* BE_H */