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)
101 struct be_queue_info
{
102 struct be_dma_mem dma_mem
;
104 u16 entry_size
; /* Size of an element in the queue */
108 atomic_t used
; /* Number of valid elements in the queue */
111 static inline u32
MODULO(u16 val
, u16 limit
)
113 BUG_ON(limit
& (limit
- 1));
114 return val
& (limit
- 1);
117 static inline void index_adv(u16
*index
, u16 val
, u16 limit
)
119 *index
= MODULO((*index
+ val
), limit
);
122 static inline void index_inc(u16
*index
, u16 limit
)
124 *index
= MODULO((*index
+ 1), limit
);
127 static inline void *queue_head_node(struct be_queue_info
*q
)
129 return q
->dma_mem
.va
+ q
->head
* q
->entry_size
;
132 static inline void *queue_tail_node(struct be_queue_info
*q
)
134 return q
->dma_mem
.va
+ q
->tail
* q
->entry_size
;
137 static inline void queue_head_inc(struct be_queue_info
*q
)
139 index_inc(&q
->head
, q
->len
);
142 static inline void queue_tail_inc(struct be_queue_info
*q
)
144 index_inc(&q
->tail
, q
->len
);
148 struct be_queue_info q
;
151 /* Adaptive interrupt coalescing (AIC) info */
153 u16 min_eqd
; /* in usecs */
154 u16 max_eqd
; /* in usecs */
155 u16 cur_eqd
; /* in usecs */
158 struct napi_struct napi
;
162 struct be_queue_info q
;
163 struct be_queue_info cq
;
168 u32 be_tx_reqs
; /* number of TX requests initiated */
169 u32 be_tx_stops
; /* number of times TX Q was stopped */
170 u32 be_tx_wrbs
; /* number of tx WRBs used */
171 u32 be_tx_events
; /* number of tx completion events */
172 u32 be_tx_compl
; /* number of tx completion entries processed */
175 u64 be_tx_bytes_prev
;
181 struct be_queue_info q
;
182 struct be_queue_info cq
;
183 /* Remember the skbs that were transmitted */
184 struct sk_buff
*sent_skb_list
[TX_Q_LEN
];
187 /* Struct to remember the pages posted for rx frags */
188 struct be_rx_page_info
{
190 DEFINE_DMA_UNMAP_ADDR(bus
);
196 u32 rx_post_fail
;/* number of ethrx buffer alloc failures */
197 u32 rx_polls
; /* number of times NAPI called poll function */
198 u32 rx_events
; /* number of ucast rx completion events */
199 u32 rx_compl
; /* number of rx completion entries processed */
206 u32 rxcp_err
; /* Num rx completion entries w/ err set. */
207 ulong rx_fps_jiffies
; /* jiffies at last FPS calc */
210 u32 rx_fps
; /* Rx frags per second */
213 struct be_rx_compl_info
{
233 struct be_adapter
*adapter
;
234 struct be_queue_info q
;
235 struct be_queue_info cq
;
236 struct be_rx_compl_info rxcp
;
237 struct be_rx_page_info page_info_tbl
[RX_Q_LEN
];
238 struct be_eq_obj rx_eq
;
239 struct be_rx_stats stats
;
241 bool rx_post_starved
; /* Zero rx frags have been posted to BE */
242 u32 cache_line_barrier
[16];
245 struct be_drv_stats
{
246 u8 be_on_die_temperature
;
250 unsigned char vf_mac_addr
[ETH_ALEN
];
257 #define BE_INVALID_PMAC_ID 0xffffffff
260 struct pci_dev
*pdev
;
261 struct net_device
*netdev
;
264 u8 __iomem
*db
; /* Door Bell */
265 u8 __iomem
*pcicfg
; /* PCI config space */
267 struct mutex mbox_lock
; /* For serializing mbox cmds to BE card */
268 struct be_dma_mem mbox_mem
;
269 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
270 * is stored for freeing purpose */
271 struct be_dma_mem mbox_mem_alloced
;
273 struct be_mcc_obj mcc_obj
;
274 spinlock_t mcc_lock
; /* For serializing mcc cmds to BE card */
275 spinlock_t mcc_cq_lock
;
277 struct msix_entry msix_entries
[BE_MAX_MSIX_VECTORS
];
282 struct be_eq_obj tx_eq
;
283 struct be_tx_obj tx_obj
;
284 struct be_tx_stats tx_stats
;
286 u32 cache_line_break
[8];
289 struct be_rx_obj rx_obj
[MAX_RX_QS
];
291 u32 big_page_size
; /* Compounded page size shared by rx wrbs */
294 struct be_drv_stats drv_stats
;
296 struct vlan_group
*vlan_grp
;
298 u16 max_vlans
; /* Number of vlans supported */
299 u8 vlan_tag
[VLAN_N_VID
];
300 u8 vlan_prio_bmap
; /* Available Priority BitMap */
301 u16 recommended_prio
; /* Recommended Priority */
302 struct be_dma_mem mc_cmd_mem
;
304 struct be_dma_mem stats_cmd
;
305 /* Work queue used to perform periodic tasks like getting statistics */
306 struct delayed_work work
;
309 /* Ethtool knobs and info */
310 char fw_ver
[FW_VER_LEN
];
311 u32 if_handle
; /* Used to configure filtering */
312 u32 pmac_id
; /* MAC addr handle used by BE card */
313 u32 beacon_state
; /* for set_phys_id */
322 u32 rx_fc
; /* Rx flow control */
323 u32 tx_fc
; /* Tx flow control */
330 u8 generation
; /* BladeEngine ASIC generation */
332 struct completion flash_compl
;
336 struct be_vf_cfg
*vf_cfg
;
343 #define be_physfn(adapter) (!adapter->is_virtfn)
345 /* BladeEngine Generation numbers */
349 #define lancer_chip(adapter) (adapter->pdev->device == OC_DEVICE_ID3)
351 extern const struct ethtool_ops be_ethtool_ops
;
353 #define msix_enabled(adapter) (adapter->num_msix_vec > 0)
354 #define tx_stats(adapter) (&adapter->tx_stats)
355 #define rx_stats(rxo) (&rxo->stats)
357 #define BE_SET_NETDEV_OPS(netdev, ops) (netdev->netdev_ops = ops)
359 #define for_all_rx_queues(adapter, rxo, i) \
360 for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs; \
363 /* Just skip the first default non-rss queue */
364 #define for_all_rss_queues(adapter, rxo, i) \
365 for (i = 0, rxo = &adapter->rx_obj[i+1]; i < (adapter->num_rx_qs - 1);\
368 #define PAGE_SHIFT_4K 12
369 #define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
371 /* Returns number of pages spanned by the data starting at the given addr */
372 #define PAGES_4K_SPANNED(_address, size) \
373 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
374 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
376 /* Byte offset into the page corresponding to given address */
377 #define OFFSET_IN_PAGE(addr) \
378 ((size_t)(addr) & (PAGE_SIZE_4K-1))
380 /* Returns bit offset within a DWORD of a bitfield */
381 #define AMAP_BIT_OFFSET(_struct, field) \
382 (((size_t)&(((_struct *)0)->field))%32)
384 /* Returns the bit mask of the field that is NOT shifted into location. */
385 static inline u32
amap_mask(u32 bitsize
)
387 return (bitsize
== 32 ? 0xFFFFFFFF : (1 << bitsize
) - 1);
391 amap_set(void *ptr
, u32 dw_offset
, u32 mask
, u32 offset
, u32 value
)
393 u32
*dw
= (u32
*) ptr
+ dw_offset
;
394 *dw
&= ~(mask
<< offset
);
395 *dw
|= (mask
& value
) << offset
;
398 #define AMAP_SET_BITS(_struct, field, ptr, val) \
400 offsetof(_struct, field)/32, \
401 amap_mask(sizeof(((_struct *)0)->field)), \
402 AMAP_BIT_OFFSET(_struct, field), \
405 static inline u32
amap_get(void *ptr
, u32 dw_offset
, u32 mask
, u32 offset
)
407 u32
*dw
= (u32
*) ptr
;
408 return mask
& (*(dw
+ dw_offset
) >> offset
);
411 #define AMAP_GET_BITS(_struct, field, ptr) \
413 offsetof(_struct, field)/32, \
414 amap_mask(sizeof(((_struct *)0)->field)), \
415 AMAP_BIT_OFFSET(_struct, field))
417 #define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
418 #define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
419 static inline void swap_dws(void *wrb
, int len
)
425 *dw
= cpu_to_le32(*dw
);
429 #endif /* __BIG_ENDIAN */
432 static inline u8
is_tcp_pkt(struct sk_buff
*skb
)
436 if (ip_hdr(skb
)->version
== 4)
437 val
= (ip_hdr(skb
)->protocol
== IPPROTO_TCP
);
438 else if (ip_hdr(skb
)->version
== 6)
439 val
= (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_TCP
);
444 static inline u8
is_udp_pkt(struct sk_buff
*skb
)
448 if (ip_hdr(skb
)->version
== 4)
449 val
= (ip_hdr(skb
)->protocol
== IPPROTO_UDP
);
450 else if (ip_hdr(skb
)->version
== 6)
451 val
= (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_UDP
);
456 static inline void be_check_sriov_fn_type(struct be_adapter
*adapter
)
460 pci_read_config_dword(adapter
->pdev
, SLI_INTF_REG_OFFSET
, &sli_intf
);
461 adapter
->is_virtfn
= (sli_intf
& SLI_INTF_FT_MASK
) ? 1 : 0;
464 static inline void be_vf_eth_addr_generate(struct be_adapter
*adapter
, u8
*mac
)
468 addr
= jhash(adapter
->netdev
->dev_addr
, ETH_ALEN
, 0);
470 mac
[5] = (u8
)(addr
& 0xFF);
471 mac
[4] = (u8
)((addr
>> 8) & 0xFF);
472 mac
[3] = (u8
)((addr
>> 16) & 0xFF);
473 /* Use the OUI from the current MAC address */
474 memcpy(mac
, adapter
->netdev
->dev_addr
, 3);
477 static inline bool be_multi_rxq(const struct be_adapter
*adapter
)
479 return adapter
->num_rx_qs
> 1;
482 extern void be_cq_notify(struct be_adapter
*adapter
, u16 qid
, bool arm
,
484 extern void be_link_status_update(struct be_adapter
*adapter
, bool link_up
);
485 extern void netdev_stats_update(struct be_adapter
*adapter
);
486 extern int be_load_fw(struct be_adapter
*adapter
, u8
*func
);