2 * Copyright (C) 2005 - 2009 ServerEngines
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.
10 * Contact Information:
11 * linux-drivers@serverengines.com
14 * 209 N. Fair Oaks Ave
21 #include <linux/pci.h>
22 #include <linux/etherdevice.h>
23 #include <linux/version.h>
24 #include <linux/delay.h>
28 #include <linux/if_vlan.h>
29 #include <linux/workqueue.h>
30 #include <linux/interrupt.h>
34 #define DRV_VER "2.0.400"
35 #define DRV_NAME "be2net"
36 #define BE_NAME "ServerEngines BladeEngine2 10Gbps NIC"
37 #define OC_NAME "Emulex OneConnect 10Gbps NIC"
38 #define DRV_DESC BE_NAME "Driver"
40 #define BE_VENDOR_ID 0x19a2
41 #define BE_DEVICE_ID1 0x211
42 #define OC_DEVICE_ID1 0x700
43 #define OC_DEVICE_ID2 0x701
45 static inline char *nic_name(struct pci_dev
*pdev
)
47 if (pdev
->device
== OC_DEVICE_ID1
|| pdev
->device
== OC_DEVICE_ID2
)
53 /* Number of bytes of an RX frame that are copied to skb->data */
55 #define BE_MAX_JUMBO_FRAME_SIZE 9018
56 #define BE_MIN_MTU 256
58 #define BE_NUM_VLANS_SUPPORTED 64
60 #define BE_MAX_TX_FRAG_COUNT 30
62 #define EVNT_Q_LEN 1024
64 #define TX_CQ_LEN 1024
65 #define RX_Q_LEN 1024 /* Does not support any other value */
66 #define RX_CQ_LEN 1024
67 #define MCC_Q_LEN 128 /* total size not to exceed 8 pages */
68 #define MCC_CQ_LEN 256
70 #define BE_NAPI_WEIGHT 64
71 #define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */
72 #define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST)
80 struct be_queue_info
{
81 struct be_dma_mem dma_mem
;
83 u16 entry_size
; /* Size of an element in the queue */
87 atomic_t used
; /* Number of valid elements in the queue */
90 static inline u32
MODULO(u16 val
, u16 limit
)
92 BUG_ON(limit
& (limit
- 1));
93 return val
& (limit
- 1);
96 static inline void index_adv(u16
*index
, u16 val
, u16 limit
)
98 *index
= MODULO((*index
+ val
), limit
);
101 static inline void index_inc(u16
*index
, u16 limit
)
103 *index
= MODULO((*index
+ 1), limit
);
106 static inline void *queue_head_node(struct be_queue_info
*q
)
108 return q
->dma_mem
.va
+ q
->head
* q
->entry_size
;
111 static inline void *queue_tail_node(struct be_queue_info
*q
)
113 return q
->dma_mem
.va
+ q
->tail
* q
->entry_size
;
116 static inline void queue_head_inc(struct be_queue_info
*q
)
118 index_inc(&q
->head
, q
->len
);
121 static inline void queue_tail_inc(struct be_queue_info
*q
)
123 index_inc(&q
->tail
, q
->len
);
128 struct be_queue_info q
;
131 /* Adaptive interrupt coalescing (AIC) info */
133 u16 min_eqd
; /* in usecs */
134 u16 max_eqd
; /* in usecs */
135 u16 cur_eqd
; /* in usecs */
137 struct napi_struct napi
;
141 struct be_queue_info q
;
142 struct be_queue_info cq
;
145 struct be_ctrl_info
{
147 u8 __iomem
*db
; /* Door Bell */
148 u8 __iomem
*pcicfg
; /* PCI config space */
151 /* Mbox used for cmd request/response */
152 spinlock_t mbox_lock
; /* For serializing mbox cmds to BE card */
153 struct be_dma_mem mbox_mem
;
154 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
155 * is stored for freeing purpose */
156 struct be_dma_mem mbox_mem_alloced
;
159 struct be_mcc_obj mcc_obj
;
160 spinlock_t mcc_lock
; /* For serializing mcc cmds to BE card */
161 spinlock_t mcc_cq_lock
;
163 /* MCC Async callback */
164 void (*async_cb
)(void *adapter
, bool link_up
);
170 struct be_drvr_stats
{
171 u32 be_tx_reqs
; /* number of TX requests initiated */
172 u32 be_tx_stops
; /* number of times TX Q was stopped */
173 u32 be_fwd_reqs
; /* number of send reqs through forwarding i/f */
174 u32 be_tx_wrbs
; /* number of tx WRBs used */
175 u32 be_tx_events
; /* number of tx completion events */
176 u32 be_tx_compl
; /* number of tx completion entries processed */
179 u64 be_tx_bytes_prev
;
182 u32 cache_barrier
[16];
184 u32 be_ethrx_post_fail
;/* number of ethrx buffer alloc failures */
185 u32 be_polls
; /* number of times NAPI called poll function */
186 u32 be_rx_events
; /* number of ucast rx completion events */
187 u32 be_rx_compl
; /* number of rx completion entries processed */
190 u64 be_rx_bytes_prev
;
192 /* number of non ether type II frames dropped where
193 * frame len > length field of Mac Hdr */
194 u32 be_802_3_dropped_frames
;
195 /* number of non ether type II frames malformed where
196 * in frame len < length field of Mac Hdr */
197 u32 be_802_3_malformed_frames
;
198 u32 be_rxcp_err
; /* Num rx completion entries w/ err set. */
199 ulong rx_fps_jiffies
; /* jiffies at last FPS calc */
201 u32 be_prev_rx_frags
;
202 u32 be_rx_fps
; /* Rx frags per second */
205 struct be_stats_obj
{
206 struct be_drvr_stats drvr_stats
;
207 struct net_device_stats net_stats
;
208 struct be_dma_mem cmd
;
212 struct be_queue_info q
;
213 struct be_queue_info cq
;
214 /* Remember the skbs that were transmitted */
215 struct sk_buff
*sent_skb_list
[TX_Q_LEN
];
218 /* Struct to remember the pages posted for rx frags */
219 struct be_rx_page_info
{
227 struct be_queue_info q
;
228 struct be_queue_info cq
;
229 struct be_rx_page_info page_info_tbl
[RX_Q_LEN
];
232 #define BE_NUM_MSIX_VECTORS 2 /* 1 each for Tx and Rx */
234 struct pci_dev
*pdev
;
235 struct net_device
*netdev
;
237 /* Mbox, pci config, csr address information */
238 struct be_ctrl_info ctrl
;
240 struct msix_entry msix_entries
[BE_NUM_MSIX_VECTORS
];
245 struct be_eq_obj tx_eq
;
246 struct be_tx_obj tx_obj
;
248 u32 cache_line_break
[8];
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 */
254 bool rx_post_starved
; /* Zero rx frags have been posted to BE */
256 struct vlan_group
*vlan_grp
;
258 u8 vlan_tag
[VLAN_GROUP_ARRAY_LEN
];
260 struct be_stats_obj stats
;
261 /* Work queue used to perform periodic tasks like getting statistics */
262 struct delayed_work work
;
264 /* Ethtool knobs and info */
265 bool rx_csum
; /* BE card must perform rx-checksumming */
266 char fw_ver
[FW_VER_LEN
];
267 u32 if_handle
; /* Used to configure filtering */
268 u32 pmac_id
; /* MAC addr handle used by BE card */
275 extern struct ethtool_ops be_ethtool_ops
;
277 #define drvr_stats(adapter) (&adapter->stats.drvr_stats)
279 #define BE_SET_NETDEV_OPS(netdev, ops) (netdev->netdev_ops = ops)
281 #define PAGE_SHIFT_4K 12
282 #define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
284 /* Returns number of pages spanned by the data starting at the given addr */
285 #define PAGES_4K_SPANNED(_address, size) \
286 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
287 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
289 /* Byte offset into the page corresponding to given address */
290 #define OFFSET_IN_PAGE(addr) \
291 ((size_t)(addr) & (PAGE_SIZE_4K-1))
293 /* Returns bit offset within a DWORD of a bitfield */
294 #define AMAP_BIT_OFFSET(_struct, field) \
295 (((size_t)&(((_struct *)0)->field))%32)
297 /* Returns the bit mask of the field that is NOT shifted into location. */
298 static inline u32
amap_mask(u32 bitsize
)
300 return (bitsize
== 32 ? 0xFFFFFFFF : (1 << bitsize
) - 1);
304 amap_set(void *ptr
, u32 dw_offset
, u32 mask
, u32 offset
, u32 value
)
306 u32
*dw
= (u32
*) ptr
+ dw_offset
;
307 *dw
&= ~(mask
<< offset
);
308 *dw
|= (mask
& value
) << offset
;
311 #define AMAP_SET_BITS(_struct, field, ptr, val) \
313 offsetof(_struct, field)/32, \
314 amap_mask(sizeof(((_struct *)0)->field)), \
315 AMAP_BIT_OFFSET(_struct, field), \
318 static inline u32
amap_get(void *ptr
, u32 dw_offset
, u32 mask
, u32 offset
)
320 u32
*dw
= (u32
*) ptr
;
321 return mask
& (*(dw
+ dw_offset
) >> offset
);
324 #define AMAP_GET_BITS(_struct, field, ptr) \
326 offsetof(_struct, field)/32, \
327 amap_mask(sizeof(((_struct *)0)->field)), \
328 AMAP_BIT_OFFSET(_struct, field))
330 #define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
331 #define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
332 static inline void swap_dws(void *wrb
, int len
)
338 *dw
= cpu_to_le32(*dw
);
342 #endif /* __BIG_ENDIAN */
345 static inline u8
is_tcp_pkt(struct sk_buff
*skb
)
349 if (ip_hdr(skb
)->version
== 4)
350 val
= (ip_hdr(skb
)->protocol
== IPPROTO_TCP
);
351 else if (ip_hdr(skb
)->version
== 6)
352 val
= (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_TCP
);
357 static inline u8
is_udp_pkt(struct sk_buff
*skb
)
361 if (ip_hdr(skb
)->version
== 4)
362 val
= (ip_hdr(skb
)->protocol
== IPPROTO_UDP
);
363 else if (ip_hdr(skb
)->version
== 6)
364 val
= (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_UDP
);
369 extern void be_cq_notify(struct be_ctrl_info
*ctrl
, u16 qid
, bool arm
,