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/delay.h>
27 #include <linux/if_vlan.h>
28 #include <linux/workqueue.h>
29 #include <linux/interrupt.h>
30 #include <linux/firmware.h>
31 #include <linux/slab.h>
32 #include <linux/u64_stats_sync.h>
36 #define DRV_VER "4.2.116u"
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 OC_NAME_SH OC_NAME "(Skyhawk)"
44 #define DRV_DESC "ServerEngines BladeEngine 10Gbps NIC Driver"
46 #define BE_VENDOR_ID 0x19a2
47 #define EMULEX_VENDOR_ID 0x10df
48 #define BE_DEVICE_ID1 0x211
49 #define BE_DEVICE_ID2 0x221
50 #define OC_DEVICE_ID1 0x700 /* Device Id for BE2 cards */
51 #define OC_DEVICE_ID2 0x710 /* Device Id for BE3 cards */
52 #define OC_DEVICE_ID3 0xe220 /* Device id for Lancer cards */
53 #define OC_DEVICE_ID4 0xe228 /* Device id for VF in Lancer */
54 #define OC_DEVICE_ID5 0x720 /* Device Id for Skyhawk cards */
55 #define OC_SUBSYS_DEVICE_ID1 0xE602
56 #define OC_SUBSYS_DEVICE_ID2 0xE642
57 #define OC_SUBSYS_DEVICE_ID3 0xE612
58 #define OC_SUBSYS_DEVICE_ID4 0xE652
60 static inline char *nic_name(struct pci_dev
*pdev
)
62 switch (pdev
->device
) {
69 return OC_NAME_LANCER
;
79 /* Number of bytes of an RX frame that are copied to skb->data */
80 #define BE_HDR_LEN ((u16) 64)
81 /* allocate extra space to allow tunneling decapsulation without head reallocation */
82 #define BE_RX_SKB_ALLOC_SIZE (BE_HDR_LEN + 64)
84 #define BE_MAX_JUMBO_FRAME_SIZE 9018
85 #define BE_MIN_MTU 256
87 #define BE_NUM_VLANS_SUPPORTED 64
88 #define BE_MAX_EQD 96u
89 #define BE_MAX_TX_FRAG_COUNT 30
91 #define EVNT_Q_LEN 1024
93 #define TX_CQ_LEN 1024
94 #define RX_Q_LEN 1024 /* Does not support any other value */
95 #define RX_CQ_LEN 1024
96 #define MCC_Q_LEN 128 /* total size not to exceed 8 pages */
97 #define MCC_CQ_LEN 256
99 #define BE3_MAX_RSS_QS 8
100 #define BE2_MAX_RSS_QS 4
101 #define MAX_RSS_QS BE3_MAX_RSS_QS
102 #define MAX_RX_QS (MAX_RSS_QS + 1) /* RSS qs + 1 def Rx */
105 #define MAX_MSIX_VECTORS MAX_RSS_QS
106 #define BE_TX_BUDGET 256
107 #define BE_NAPI_WEIGHT 64
108 #define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */
109 #define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST)
111 #define FW_VER_LEN 32
119 struct be_queue_info
{
120 struct be_dma_mem dma_mem
;
122 u16 entry_size
; /* Size of an element in the queue */
126 atomic_t used
; /* Number of valid elements in the queue */
129 static inline u32
MODULO(u16 val
, u16 limit
)
131 BUG_ON(limit
& (limit
- 1));
132 return val
& (limit
- 1);
135 static inline void index_adv(u16
*index
, u16 val
, u16 limit
)
137 *index
= MODULO((*index
+ val
), limit
);
140 static inline void index_inc(u16
*index
, u16 limit
)
142 *index
= MODULO((*index
+ 1), limit
);
145 static inline void *queue_head_node(struct be_queue_info
*q
)
147 return q
->dma_mem
.va
+ q
->head
* q
->entry_size
;
150 static inline void *queue_tail_node(struct be_queue_info
*q
)
152 return q
->dma_mem
.va
+ q
->tail
* q
->entry_size
;
155 static inline void *queue_index_node(struct be_queue_info
*q
, u16 index
)
157 return q
->dma_mem
.va
+ index
* q
->entry_size
;
160 static inline void queue_head_inc(struct be_queue_info
*q
)
162 index_inc(&q
->head
, q
->len
);
165 static inline void queue_tail_inc(struct be_queue_info
*q
)
167 index_inc(&q
->tail
, q
->len
);
171 struct be_queue_info q
;
174 /* Adaptive interrupt coalescing (AIC) info */
176 u32 min_eqd
; /* in usecs */
177 u32 max_eqd
; /* in usecs */
178 u32 eqd
; /* configured val when aic is off */
179 u32 cur_eqd
; /* in usecs */
181 u8 idx
; /* array index */
183 struct napi_struct napi
;
184 struct be_adapter
*adapter
;
185 } ____cacheline_aligned_in_smp
;
188 struct be_queue_info q
;
189 struct be_queue_info cq
;
201 struct u64_stats_sync sync
;
202 struct u64_stats_sync sync_compl
;
206 struct be_queue_info q
;
207 struct be_queue_info cq
;
208 /* Remember the skbs that were transmitted */
209 struct sk_buff
*sent_skb_list
[TX_Q_LEN
];
210 struct be_tx_stats stats
;
211 } ____cacheline_aligned_in_smp
;
213 /* Struct to remember the pages posted for rx frags */
214 struct be_rx_page_info
{
216 DEFINE_DMA_UNMAP_ADDR(bus
);
226 u32 rx_drops_no_skbs
; /* skb allocation errors */
227 u32 rx_drops_no_frags
; /* HW has no fetched frags */
228 u32 rx_post_fail
; /* page post alloc failures */
231 u32 rx_compl_err
; /* completions with err set */
232 u32 rx_pps
; /* pkts per second */
233 struct u64_stats_sync sync
;
236 struct be_rx_compl_info
{
256 struct be_adapter
*adapter
;
257 struct be_queue_info q
;
258 struct be_queue_info cq
;
259 struct be_rx_compl_info rxcp
;
260 struct be_rx_page_info page_info_tbl
[RX_Q_LEN
];
261 struct be_rx_stats stats
;
263 bool rx_post_starved
; /* Zero rx frags have been posted to BE */
264 } ____cacheline_aligned_in_smp
;
266 struct be_drv_stats
{
267 u32 be_on_die_temperature
;
269 u32 rx_drops_no_pbuf
;
270 u32 rx_drops_no_txpb
;
271 u32 rx_drops_no_erx_descr
;
272 u32 rx_drops_no_tpre_descr
;
273 u32 rx_drops_too_many_frags
;
274 u32 forwarded_packets
;
277 u32 rx_alignment_symbol_errors
;
279 u32 rx_priority_pause_frames
;
280 u32 rx_control_frames
;
281 u32 rx_in_range_errors
;
282 u32 rx_out_range_errors
;
283 u32 rx_frame_too_long
;
284 u32 rx_address_mismatch_drops
;
285 u32 rx_dropped_too_small
;
286 u32 rx_dropped_too_short
;
287 u32 rx_dropped_header_too_small
;
288 u32 rx_dropped_tcp_length
;
290 u32 rx_ip_checksum_errs
;
291 u32 rx_tcp_checksum_errs
;
292 u32 rx_udp_checksum_errs
;
294 u32 tx_priority_pauseframes
;
295 u32 tx_controlframes
;
296 u32 rxpp_fifo_overflow_drop
;
297 u32 rx_input_fifo_overflow_drop
;
298 u32 pmem_fifo_overflow_drop
;
303 unsigned char mac_addr
[ETH_ALEN
];
310 #define BE_FLAGS_LINK_STATUS_INIT 1
311 #define BE_FLAGS_WORKER_SCHEDULED (1 << 3)
314 struct pci_dev
*pdev
;
315 struct net_device
*netdev
;
318 u8 __iomem
*db
; /* Door Bell */
320 struct mutex mbox_lock
; /* For serializing mbox cmds to BE card */
321 struct be_dma_mem mbox_mem
;
322 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
323 * is stored for freeing purpose */
324 struct be_dma_mem mbox_mem_alloced
;
326 struct be_mcc_obj mcc_obj
;
327 spinlock_t mcc_lock
; /* For serializing mcc cmds to BE card */
328 spinlock_t mcc_cq_lock
;
332 struct be_eq_obj eq_obj
[MAX_MSIX_VECTORS
];
333 struct msix_entry msix_entries
[MAX_MSIX_VECTORS
];
338 struct be_tx_obj tx_obj
[MAX_TX_QS
];
342 struct be_rx_obj rx_obj
[MAX_RX_QS
];
343 u32 big_page_size
; /* Compounded page size shared by rx wrbs */
346 struct be_drv_stats drv_stats
;
349 u16 max_vlans
; /* Number of vlans supported */
350 u8 vlan_tag
[VLAN_N_VID
];
351 u8 vlan_prio_bmap
; /* Available Priority BitMap */
352 u16 recommended_prio
; /* Recommended Priority */
353 struct be_dma_mem rx_filter
; /* Cmd DMA mem for rx-filter */
355 struct be_dma_mem stats_cmd
;
356 /* Work queue used to perform periodic tasks like getting statistics */
357 struct delayed_work work
;
361 /* Ethtool knobs and info */
362 char fw_ver
[FW_VER_LEN
];
363 int if_handle
; /* Used to configure filtering */
364 u32 pmac_id
; /* MAC addr handle used by BE card */
365 u32 beacon_state
; /* for set_phys_id */
374 u32 rx_fc
; /* Rx flow control */
375 u32 tx_fc
; /* Tx flow control */
381 u8 generation
; /* BladeEngine ASIC generation */
383 struct completion flash_compl
;
387 struct be_vf_cfg
*vf_cfg
;
396 #define be_physfn(adapter) (!adapter->is_virtfn)
397 #define sriov_enabled(adapter) (adapter->num_vfs > 0)
398 #define for_all_vfs(adapter, vf_cfg, i) \
399 for (i = 0, vf_cfg = &adapter->vf_cfg[i]; i < adapter->num_vfs; \
402 /* BladeEngine Generation numbers */
408 #define lancer_chip(adapter) ((adapter->pdev->device == OC_DEVICE_ID3) || \
409 (adapter->pdev->device == OC_DEVICE_ID4))
411 extern const struct ethtool_ops be_ethtool_ops
;
413 #define msix_enabled(adapter) (adapter->num_msix_vec > 0)
414 #define num_irqs(adapter) (msix_enabled(adapter) ? \
415 adapter->num_msix_vec : 1)
416 #define tx_stats(txo) (&(txo)->stats)
417 #define rx_stats(rxo) (&(rxo)->stats)
419 /* The default RXQ is the last RXQ */
420 #define default_rxo(adpt) (&adpt->rx_obj[adpt->num_rx_qs - 1])
422 #define for_all_rx_queues(adapter, rxo, i) \
423 for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs; \
426 /* Skip the default non-rss queue (last one)*/
427 #define for_all_rss_queues(adapter, rxo, i) \
428 for (i = 0, rxo = &adapter->rx_obj[i]; i < (adapter->num_rx_qs - 1);\
431 #define for_all_tx_queues(adapter, txo, i) \
432 for (i = 0, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs; \
435 #define for_all_evt_queues(adapter, eqo, i) \
436 for (i = 0, eqo = &adapter->eq_obj[i]; i < adapter->num_evt_qs; \
439 #define is_mcc_eqo(eqo) (eqo->idx == 0)
440 #define mcc_eqo(adapter) (&adapter->eq_obj[0])
442 #define PAGE_SHIFT_4K 12
443 #define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
445 /* Returns number of pages spanned by the data starting at the given addr */
446 #define PAGES_4K_SPANNED(_address, size) \
447 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
448 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
450 /* Returns bit offset within a DWORD of a bitfield */
451 #define AMAP_BIT_OFFSET(_struct, field) \
452 (((size_t)&(((_struct *)0)->field))%32)
454 /* Returns the bit mask of the field that is NOT shifted into location. */
455 static inline u32
amap_mask(u32 bitsize
)
457 return (bitsize
== 32 ? 0xFFFFFFFF : (1 << bitsize
) - 1);
461 amap_set(void *ptr
, u32 dw_offset
, u32 mask
, u32 offset
, u32 value
)
463 u32
*dw
= (u32
*) ptr
+ dw_offset
;
464 *dw
&= ~(mask
<< offset
);
465 *dw
|= (mask
& value
) << offset
;
468 #define AMAP_SET_BITS(_struct, field, ptr, val) \
470 offsetof(_struct, field)/32, \
471 amap_mask(sizeof(((_struct *)0)->field)), \
472 AMAP_BIT_OFFSET(_struct, field), \
475 static inline u32
amap_get(void *ptr
, u32 dw_offset
, u32 mask
, u32 offset
)
477 u32
*dw
= (u32
*) ptr
;
478 return mask
& (*(dw
+ dw_offset
) >> offset
);
481 #define AMAP_GET_BITS(_struct, field, ptr) \
483 offsetof(_struct, field)/32, \
484 amap_mask(sizeof(((_struct *)0)->field)), \
485 AMAP_BIT_OFFSET(_struct, field))
487 #define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
488 #define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
489 static inline void swap_dws(void *wrb
, int len
)
495 *dw
= cpu_to_le32(*dw
);
499 #endif /* __BIG_ENDIAN */
502 static inline u8
is_tcp_pkt(struct sk_buff
*skb
)
506 if (ip_hdr(skb
)->version
== 4)
507 val
= (ip_hdr(skb
)->protocol
== IPPROTO_TCP
);
508 else if (ip_hdr(skb
)->version
== 6)
509 val
= (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_TCP
);
514 static inline u8
is_udp_pkt(struct sk_buff
*skb
)
518 if (ip_hdr(skb
)->version
== 4)
519 val
= (ip_hdr(skb
)->protocol
== IPPROTO_UDP
);
520 else if (ip_hdr(skb
)->version
== 6)
521 val
= (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_UDP
);
526 static inline void be_check_sriov_fn_type(struct be_adapter
*adapter
)
530 pci_read_config_dword(adapter
->pdev
, SLI_INTF_REG_OFFSET
, &sli_intf
);
531 adapter
->is_virtfn
= (sli_intf
& SLI_INTF_FT_MASK
) ? 1 : 0;
534 static inline void be_vf_eth_addr_generate(struct be_adapter
*adapter
, u8
*mac
)
538 addr
= jhash(adapter
->netdev
->dev_addr
, ETH_ALEN
, 0);
540 mac
[5] = (u8
)(addr
& 0xFF);
541 mac
[4] = (u8
)((addr
>> 8) & 0xFF);
542 mac
[3] = (u8
)((addr
>> 16) & 0xFF);
543 /* Use the OUI from the current MAC address */
544 memcpy(mac
, adapter
->netdev
->dev_addr
, 3);
547 static inline bool be_multi_rxq(const struct be_adapter
*adapter
)
549 return adapter
->num_rx_qs
> 1;
552 static inline bool be_error(struct be_adapter
*adapter
)
554 return adapter
->eeh_err
|| adapter
->ue_detected
|| adapter
->fw_timeout
;
557 static inline bool be_is_wol_excluded(struct be_adapter
*adapter
)
559 struct pci_dev
*pdev
= adapter
->pdev
;
561 if (!be_physfn(adapter
))
564 switch (pdev
->subsystem_device
) {
565 case OC_SUBSYS_DEVICE_ID1
:
566 case OC_SUBSYS_DEVICE_ID2
:
567 case OC_SUBSYS_DEVICE_ID3
:
568 case OC_SUBSYS_DEVICE_ID4
:
575 extern void be_cq_notify(struct be_adapter
*adapter
, u16 qid
, bool arm
,
577 extern void be_link_status_update(struct be_adapter
*adapter
, u8 link_status
);
578 extern void be_parse_stats(struct be_adapter
*adapter
);
579 extern int be_load_fw(struct be_adapter
*adapter
, u8
*func
);
580 extern bool be_is_wol_supported(struct be_adapter
*adapter
);