2 * Copyright (C) 2005 - 2011 Emulex
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@emulex.com
15 * Costa Mesa, CA 92626
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>
31 #include <linux/firmware.h>
32 #include <linux/slab.h>
36 #define DRV_VER "4.0.100u"
37 #define DRV_NAME "be2net"
38 #define BE_NAME "ServerEngines BladeEngine2 10Gbps NIC"
39 #define BE3_NAME "ServerEngines BladeEngine3 10Gbps NIC"
40 #define OC_NAME "Emulex OneConnect 10Gbps NIC"
41 #define OC_NAME_BE OC_NAME "(be3)"
42 #define OC_NAME_LANCER OC_NAME "(Lancer)"
43 #define DRV_DESC "ServerEngines BladeEngine 10Gbps NIC Driver"
45 #define BE_VENDOR_ID 0x19a2
46 #define EMULEX_VENDOR_ID 0x10df
47 #define BE_DEVICE_ID1 0x211
48 #define BE_DEVICE_ID2 0x221
49 #define OC_DEVICE_ID1 0x700 /* Device Id for BE2 cards */
50 #define OC_DEVICE_ID2 0x710 /* Device Id for BE3 cards */
51 #define OC_DEVICE_ID3 0xe220 /* Device id for Lancer cards */
53 static inline char *nic_name(struct pci_dev
*pdev
)
55 switch (pdev
->device
) {
61 return OC_NAME_LANCER
;
69 /* Number of bytes of an RX frame that are copied to skb->data */
70 #define BE_HDR_LEN ((u16) 64)
71 #define BE_MAX_JUMBO_FRAME_SIZE 9018
72 #define BE_MIN_MTU 256
74 #define BE_NUM_VLANS_SUPPORTED 64
76 #define BE_MAX_TX_FRAG_COUNT 30
78 #define EVNT_Q_LEN 1024
80 #define TX_CQ_LEN 1024
81 #define RX_Q_LEN 1024 /* Does not support any other value */
82 #define RX_CQ_LEN 1024
83 #define MCC_Q_LEN 128 /* total size not to exceed 8 pages */
84 #define MCC_CQ_LEN 256
86 #define MAX_RSS_QS 4 /* BE limit is 4 queues/port */
87 #define MAX_RX_QS (MAX_RSS_QS + 1) /* RSS qs + 1 def Rx */
88 #define BE_MAX_MSIX_VECTORS (MAX_RX_QS + 1)/* RX + TX */
89 #define BE_NAPI_WEIGHT 64
90 #define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */
91 #define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST)
103 struct be_queue_info
{
104 struct be_dma_mem dma_mem
;
106 u16 entry_size
; /* Size of an element in the queue */
110 atomic_t used
; /* Number of valid elements in the queue */
113 static inline u32
MODULO(u16 val
, u16 limit
)
115 BUG_ON(limit
& (limit
- 1));
116 return val
& (limit
- 1);
119 static inline void index_adv(u16
*index
, u16 val
, u16 limit
)
121 *index
= MODULO((*index
+ val
), limit
);
124 static inline void index_inc(u16
*index
, u16 limit
)
126 *index
= MODULO((*index
+ 1), limit
);
129 static inline void *queue_head_node(struct be_queue_info
*q
)
131 return q
->dma_mem
.va
+ q
->head
* q
->entry_size
;
134 static inline void *queue_tail_node(struct be_queue_info
*q
)
136 return q
->dma_mem
.va
+ q
->tail
* q
->entry_size
;
139 static inline void queue_head_inc(struct be_queue_info
*q
)
141 index_inc(&q
->head
, q
->len
);
144 static inline void queue_tail_inc(struct be_queue_info
*q
)
146 index_inc(&q
->tail
, q
->len
);
150 struct be_queue_info q
;
153 /* Adaptive interrupt coalescing (AIC) info */
155 u16 min_eqd
; /* in usecs */
156 u16 max_eqd
; /* in usecs */
157 u16 cur_eqd
; /* in usecs */
160 struct napi_struct napi
;
164 struct be_queue_info q
;
165 struct be_queue_info cq
;
170 u32 be_tx_reqs
; /* number of TX requests initiated */
171 u32 be_tx_stops
; /* number of times TX Q was stopped */
172 u32 be_tx_wrbs
; /* number of tx WRBs used */
173 u32 be_tx_events
; /* number of tx completion events */
174 u32 be_tx_compl
; /* number of tx completion entries processed */
177 u64 be_tx_bytes_prev
;
183 struct be_queue_info q
;
184 struct be_queue_info cq
;
185 /* Remember the skbs that were transmitted */
186 struct sk_buff
*sent_skb_list
[TX_Q_LEN
];
189 /* Struct to remember the pages posted for rx frags */
190 struct be_rx_page_info
{
192 DEFINE_DMA_UNMAP_ADDR(bus
);
198 u32 rx_post_fail
;/* number of ethrx buffer alloc failures */
199 u32 rx_polls
; /* number of times NAPI called poll function */
200 u32 rx_events
; /* number of ucast rx completion events */
201 u32 rx_compl
; /* number of rx completion entries processed */
208 u32 rxcp_err
; /* Num rx completion entries w/ err set. */
209 ulong rx_fps_jiffies
; /* jiffies at last FPS calc */
212 u32 rx_fps
; /* Rx frags per second */
215 struct be_rx_compl_info
{
235 struct be_adapter
*adapter
;
236 struct be_queue_info q
;
237 struct be_queue_info cq
;
238 struct be_rx_compl_info rxcp
;
239 struct be_rx_page_info page_info_tbl
[RX_Q_LEN
];
240 struct be_eq_obj rx_eq
;
241 struct be_rx_stats stats
;
243 bool rx_post_starved
; /* Zero rx frags have been posted to BE */
244 u32 cache_line_barrier
[16];
247 struct be_drv_stats
{
248 u8 be_on_die_temperature
;
252 unsigned char vf_mac_addr
[ETH_ALEN
];
259 #define BE_INVALID_PMAC_ID 0xffffffff
262 struct pci_dev
*pdev
;
263 struct net_device
*netdev
;
266 u8 __iomem
*db
; /* Door Bell */
267 u8 __iomem
*pcicfg
; /* PCI config space */
269 struct mutex mbox_lock
; /* For serializing mbox cmds to BE card */
270 struct be_dma_mem mbox_mem
;
271 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
272 * is stored for freeing purpose */
273 struct be_dma_mem mbox_mem_alloced
;
275 struct be_mcc_obj mcc_obj
;
276 spinlock_t mcc_lock
; /* For serializing mcc cmds to BE card */
277 spinlock_t mcc_cq_lock
;
279 struct msix_entry msix_entries
[BE_MAX_MSIX_VECTORS
];
284 struct be_eq_obj tx_eq
;
285 struct be_tx_obj tx_obj
;
286 struct be_tx_stats tx_stats
;
288 u32 cache_line_break
[8];
291 struct be_rx_obj rx_obj
[MAX_RX_QS
];
293 u32 big_page_size
; /* Compounded page size shared by rx wrbs */
296 struct be_drv_stats drv_stats
;
298 struct vlan_group
*vlan_grp
;
300 u16 max_vlans
; /* Number of vlans supported */
301 u8 vlan_tag
[VLAN_N_VID
];
302 u8 vlan_prio_bmap
; /* Available Priority BitMap */
303 u16 recommended_prio
; /* Recommended Priority */
304 struct be_dma_mem mc_cmd_mem
;
306 struct be_dma_mem stats_cmd
;
307 /* Work queue used to perform periodic tasks like getting statistics */
308 struct delayed_work work
;
311 /* Ethtool knobs and info */
312 bool rx_csum
; /* BE card must perform rx-checksumming */
313 char fw_ver
[FW_VER_LEN
];
314 u32 if_handle
; /* Used to configure filtering */
315 u32 pmac_id
; /* MAC addr handle used by BE card */
316 u32 beacon_state
; /* for set_phys_id */
325 u32 rx_fc
; /* Rx flow control */
326 u32 tx_fc
; /* Tx flow control */
333 u8 generation
; /* BladeEngine ASIC generation */
335 struct completion flash_compl
;
339 struct be_vf_cfg vf_cfg
[BE_MAX_VF
];
346 #define be_physfn(adapter) (!adapter->is_virtfn)
348 /* BladeEngine Generation numbers */
352 #define lancer_chip(adapter) (adapter->pdev->device == OC_DEVICE_ID3)
354 extern const struct ethtool_ops be_ethtool_ops
;
356 #define msix_enabled(adapter) (adapter->num_msix_vec > 0)
357 #define tx_stats(adapter) (&adapter->tx_stats)
358 #define rx_stats(rxo) (&rxo->stats)
360 #define BE_SET_NETDEV_OPS(netdev, ops) (netdev->netdev_ops = ops)
362 #define for_all_rx_queues(adapter, rxo, i) \
363 for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs; \
366 /* Just skip the first default non-rss queue */
367 #define for_all_rss_queues(adapter, rxo, i) \
368 for (i = 0, rxo = &adapter->rx_obj[i+1]; i < (adapter->num_rx_qs - 1);\
371 #define PAGE_SHIFT_4K 12
372 #define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
374 /* Returns number of pages spanned by the data starting at the given addr */
375 #define PAGES_4K_SPANNED(_address, size) \
376 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
377 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
379 /* Byte offset into the page corresponding to given address */
380 #define OFFSET_IN_PAGE(addr) \
381 ((size_t)(addr) & (PAGE_SIZE_4K-1))
383 /* Returns bit offset within a DWORD of a bitfield */
384 #define AMAP_BIT_OFFSET(_struct, field) \
385 (((size_t)&(((_struct *)0)->field))%32)
387 /* Returns the bit mask of the field that is NOT shifted into location. */
388 static inline u32
amap_mask(u32 bitsize
)
390 return (bitsize
== 32 ? 0xFFFFFFFF : (1 << bitsize
) - 1);
394 amap_set(void *ptr
, u32 dw_offset
, u32 mask
, u32 offset
, u32 value
)
396 u32
*dw
= (u32
*) ptr
+ dw_offset
;
397 *dw
&= ~(mask
<< offset
);
398 *dw
|= (mask
& value
) << offset
;
401 #define AMAP_SET_BITS(_struct, field, ptr, val) \
403 offsetof(_struct, field)/32, \
404 amap_mask(sizeof(((_struct *)0)->field)), \
405 AMAP_BIT_OFFSET(_struct, field), \
408 static inline u32
amap_get(void *ptr
, u32 dw_offset
, u32 mask
, u32 offset
)
410 u32
*dw
= (u32
*) ptr
;
411 return mask
& (*(dw
+ dw_offset
) >> offset
);
414 #define AMAP_GET_BITS(_struct, field, ptr) \
416 offsetof(_struct, field)/32, \
417 amap_mask(sizeof(((_struct *)0)->field)), \
418 AMAP_BIT_OFFSET(_struct, field))
420 #define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
421 #define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
422 static inline void swap_dws(void *wrb
, int len
)
428 *dw
= cpu_to_le32(*dw
);
432 #endif /* __BIG_ENDIAN */
435 static inline u8
is_tcp_pkt(struct sk_buff
*skb
)
439 if (ip_hdr(skb
)->version
== 4)
440 val
= (ip_hdr(skb
)->protocol
== IPPROTO_TCP
);
441 else if (ip_hdr(skb
)->version
== 6)
442 val
= (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_TCP
);
447 static inline u8
is_udp_pkt(struct sk_buff
*skb
)
451 if (ip_hdr(skb
)->version
== 4)
452 val
= (ip_hdr(skb
)->protocol
== IPPROTO_UDP
);
453 else if (ip_hdr(skb
)->version
== 6)
454 val
= (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_UDP
);
459 static inline void be_check_sriov_fn_type(struct be_adapter
*adapter
)
463 pci_read_config_dword(adapter
->pdev
, SLI_INTF_REG_OFFSET
, &sli_intf
);
464 adapter
->is_virtfn
= (sli_intf
& SLI_INTF_FT_MASK
) ? 1 : 0;
467 static inline void be_vf_eth_addr_generate(struct be_adapter
*adapter
, u8
*mac
)
471 addr
= jhash(adapter
->netdev
->dev_addr
, ETH_ALEN
, 0);
473 mac
[5] = (u8
)(addr
& 0xFF);
474 mac
[4] = (u8
)((addr
>> 8) & 0xFF);
475 mac
[3] = (u8
)((addr
>> 16) & 0xFF);
476 /* Use the OUI from the current MAC address */
477 memcpy(mac
, adapter
->netdev
->dev_addr
, 3);
480 static inline bool be_multi_rxq(const struct be_adapter
*adapter
)
482 return adapter
->num_rx_qs
> 1;
485 extern void be_cq_notify(struct be_adapter
*adapter
, u16 qid
, bool arm
,
487 extern void be_link_status_update(struct be_adapter
*adapter
, bool link_up
);
488 extern void netdev_stats_update(struct be_adapter
*adapter
);
489 extern int be_load_fw(struct be_adapter
*adapter
, u8
*func
);