2 * Copyright (C) 2005 - 2013 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>
37 #define DRV_VER "4.6.62.0u"
38 #define DRV_NAME "be2net"
39 #define BE_NAME "Emulex BladeEngine2"
40 #define BE3_NAME "Emulex BladeEngine3"
41 #define OC_NAME "Emulex OneConnect"
42 #define OC_NAME_BE OC_NAME "(be3)"
43 #define OC_NAME_LANCER OC_NAME "(Lancer)"
44 #define OC_NAME_SH OC_NAME "(Skyhawk)"
45 #define DRV_DESC "Emulex OneConnect 10Gbps NIC Driver"
47 #define BE_VENDOR_ID 0x19a2
48 #define EMULEX_VENDOR_ID 0x10df
49 #define BE_DEVICE_ID1 0x211
50 #define BE_DEVICE_ID2 0x221
51 #define OC_DEVICE_ID1 0x700 /* Device Id for BE2 cards */
52 #define OC_DEVICE_ID2 0x710 /* Device Id for BE3 cards */
53 #define OC_DEVICE_ID3 0xe220 /* Device id for Lancer cards */
54 #define OC_DEVICE_ID4 0xe228 /* Device id for VF in Lancer */
55 #define OC_DEVICE_ID5 0x720 /* Device Id for Skyhawk cards */
56 #define OC_DEVICE_ID6 0x728 /* Device id for VF in SkyHawk */
57 #define OC_SUBSYS_DEVICE_ID1 0xE602
58 #define OC_SUBSYS_DEVICE_ID2 0xE642
59 #define OC_SUBSYS_DEVICE_ID3 0xE612
60 #define OC_SUBSYS_DEVICE_ID4 0xE652
62 static inline char *nic_name(struct pci_dev
*pdev
)
64 switch (pdev
->device
) {
71 return OC_NAME_LANCER
;
82 /* Number of bytes of an RX frame that are copied to skb->data */
83 #define BE_HDR_LEN ((u16) 64)
84 /* allocate extra space to allow tunneling decapsulation without head reallocation */
85 #define BE_RX_SKB_ALLOC_SIZE (BE_HDR_LEN + 64)
87 #define BE_MAX_JUMBO_FRAME_SIZE 9018
88 #define BE_MIN_MTU 256
90 #define BE_NUM_VLANS_SUPPORTED 64
91 #define BE_MAX_EQD 96u
92 #define BE_MAX_TX_FRAG_COUNT 30
94 #define EVNT_Q_LEN 1024
96 #define TX_CQ_LEN 1024
97 #define RX_Q_LEN 1024 /* Does not support any other value */
98 #define RX_CQ_LEN 1024
99 #define MCC_Q_LEN 128 /* total size not to exceed 8 pages */
100 #define MCC_CQ_LEN 256
102 #define BE3_MAX_RSS_QS 8
103 #define BE2_MAX_RSS_QS 4
104 #define MAX_RSS_QS BE3_MAX_RSS_QS
105 #define MAX_RX_QS (MAX_RSS_QS + 1) /* RSS qs + 1 def Rx */
108 #define MAX_ROCE_EQS 5
109 #define MAX_MSIX_VECTORS (MAX_RSS_QS + MAX_ROCE_EQS) /* RSS qs + RoCE */
110 #define BE_TX_BUDGET 256
111 #define BE_NAPI_WEIGHT 64
112 #define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */
113 #define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST)
115 #define MAX_VFS 30 /* Max VFs supported by BE3 FW */
116 #define FW_VER_LEN 32
124 struct be_queue_info
{
125 struct be_dma_mem dma_mem
;
127 u16 entry_size
; /* Size of an element in the queue */
131 atomic_t used
; /* Number of valid elements in the queue */
134 static inline u32
MODULO(u16 val
, u16 limit
)
136 BUG_ON(limit
& (limit
- 1));
137 return val
& (limit
- 1);
140 static inline void index_adv(u16
*index
, u16 val
, u16 limit
)
142 *index
= MODULO((*index
+ val
), limit
);
145 static inline void index_inc(u16
*index
, u16 limit
)
147 *index
= MODULO((*index
+ 1), limit
);
150 static inline void *queue_head_node(struct be_queue_info
*q
)
152 return q
->dma_mem
.va
+ q
->head
* q
->entry_size
;
155 static inline void *queue_tail_node(struct be_queue_info
*q
)
157 return q
->dma_mem
.va
+ q
->tail
* q
->entry_size
;
160 static inline void *queue_index_node(struct be_queue_info
*q
, u16 index
)
162 return q
->dma_mem
.va
+ index
* q
->entry_size
;
165 static inline void queue_head_inc(struct be_queue_info
*q
)
167 index_inc(&q
->head
, q
->len
);
170 static inline void index_dec(u16
*index
, u16 limit
)
172 *index
= MODULO((*index
- 1), limit
);
175 static inline void queue_tail_inc(struct be_queue_info
*q
)
177 index_inc(&q
->tail
, q
->len
);
181 struct be_queue_info q
;
184 /* Adaptive interrupt coalescing (AIC) info */
186 u32 min_eqd
; /* in usecs */
187 u32 max_eqd
; /* in usecs */
188 u32 eqd
; /* configured val when aic is off */
189 u32 cur_eqd
; /* in usecs */
191 u8 idx
; /* array index */
194 struct napi_struct napi
;
195 struct be_adapter
*adapter
;
196 } ____cacheline_aligned_in_smp
;
199 struct be_queue_info q
;
200 struct be_queue_info cq
;
212 struct u64_stats_sync sync
;
213 struct u64_stats_sync sync_compl
;
218 struct be_queue_info q
;
219 struct be_queue_info cq
;
220 /* Remember the skbs that were transmitted */
221 struct sk_buff
*sent_skb_list
[TX_Q_LEN
];
222 struct be_tx_stats stats
;
223 } ____cacheline_aligned_in_smp
;
225 /* Struct to remember the pages posted for rx frags */
226 struct be_rx_page_info
{
228 DEFINE_DMA_UNMAP_ADDR(bus
);
238 u32 rx_drops_no_skbs
; /* skb allocation errors */
239 u32 rx_drops_no_frags
; /* HW has no fetched frags */
240 u32 rx_post_fail
; /* page post alloc failures */
243 u32 rx_compl_err
; /* completions with err set */
244 u32 rx_pps
; /* pkts per second */
245 struct u64_stats_sync sync
;
248 struct be_rx_compl_info
{
269 struct be_adapter
*adapter
;
270 struct be_queue_info q
;
271 struct be_queue_info cq
;
272 struct be_rx_compl_info rxcp
;
273 struct be_rx_page_info page_info_tbl
[RX_Q_LEN
];
274 struct be_rx_stats stats
;
276 bool rx_post_starved
; /* Zero rx frags have been posted to BE */
277 } ____cacheline_aligned_in_smp
;
279 struct be_drv_stats
{
280 u32 be_on_die_temperature
;
282 u32 rx_drops_no_pbuf
;
283 u32 rx_drops_no_txpb
;
284 u32 rx_drops_no_erx_descr
;
285 u32 rx_drops_no_tpre_descr
;
286 u32 rx_drops_too_many_frags
;
287 u32 forwarded_packets
;
290 u32 rx_alignment_symbol_errors
;
292 u32 rx_priority_pause_frames
;
293 u32 rx_control_frames
;
294 u32 rx_in_range_errors
;
295 u32 rx_out_range_errors
;
296 u32 rx_frame_too_long
;
297 u32 rx_address_filtered
;
298 u32 rx_dropped_too_small
;
299 u32 rx_dropped_too_short
;
300 u32 rx_dropped_header_too_small
;
301 u32 rx_dropped_tcp_length
;
303 u32 rx_ip_checksum_errs
;
304 u32 rx_tcp_checksum_errs
;
305 u32 rx_udp_checksum_errs
;
307 u32 tx_priority_pauseframes
;
308 u32 tx_controlframes
;
309 u32 rxpp_fifo_overflow_drop
;
310 u32 rx_input_fifo_overflow_drop
;
311 u32 pmem_fifo_overflow_drop
;
316 unsigned char mac_addr
[ETH_ALEN
];
329 #define BE_FLAGS_LINK_STATUS_INIT 1
330 #define BE_FLAGS_WORKER_SCHEDULED (1 << 3)
331 #define BE_FLAGS_NAPI_ENABLED (1 << 9)
332 #define BE_UC_PMAC_COUNT 30
333 #define BE_VF_UC_PMAC_COUNT 2
334 #define BE_FLAGS_QNQ_ASYNC_EVT_RCVD (1 << 11)
336 /* Ethtool set_dump flags */
337 #define LANCER_INITIATE_FW_DUMP 0x1
347 u16 auto_speeds_supported
;
348 u16 fixed_speeds_supported
;
356 struct pci_dev
*pdev
;
357 struct net_device
*netdev
;
359 u8 __iomem
*csr
; /* CSR BAR used only for BE2/3 */
360 u8 __iomem
*db
; /* Door Bell */
362 struct mutex mbox_lock
; /* For serializing mbox cmds to BE card */
363 struct be_dma_mem mbox_mem
;
364 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
365 * is stored for freeing purpose */
366 struct be_dma_mem mbox_mem_alloced
;
368 struct be_mcc_obj mcc_obj
;
369 spinlock_t mcc_lock
; /* For serializing mcc cmds to BE card */
370 spinlock_t mcc_cq_lock
;
374 struct be_eq_obj eq_obj
[MAX_MSIX_VECTORS
];
375 struct msix_entry msix_entries
[MAX_MSIX_VECTORS
];
380 struct be_tx_obj tx_obj
[MAX_TX_QS
];
384 struct be_rx_obj rx_obj
[MAX_RX_QS
];
385 u32 big_page_size
; /* Compounded page size shared by rx wrbs */
387 struct be_drv_stats drv_stats
;
389 u8 vlan_tag
[VLAN_N_VID
];
390 u8 vlan_prio_bmap
; /* Available Priority BitMap */
391 u16 recommended_prio
; /* Recommended Priority */
392 struct be_dma_mem rx_filter
; /* Cmd DMA mem for rx-filter */
394 struct be_dma_mem stats_cmd
;
395 /* Work queue used to perform periodic tasks like getting statistics */
396 struct delayed_work work
;
399 struct delayed_work func_recovery_work
;
402 /* Ethtool knobs and info */
403 char fw_ver
[FW_VER_LEN
];
404 char fw_on_flash
[FW_VER_LEN
];
405 int if_handle
; /* Used to configure filtering */
406 u32
*pmac_id
; /* MAC addr handle used by BE card */
407 u32 beacon_state
; /* for set_phys_id */
417 u32 rx_fc
; /* Rx flow control */
418 u32 tx_fc
; /* Tx flow control */
426 u32 num_msix_roce_vec
;
427 struct ocrdma_dev
*ocrdma_dev
;
428 struct list_head entry
;
431 struct completion flash_compl
;
433 u32 num_vfs
; /* Number of VFs provisioned by PF driver */
434 u32 dev_num_vfs
; /* Number of VFs supported by HW */
436 struct be_vf_cfg
*vf_cfg
;
444 u32 uc_macs
; /* Count of secondary UC MAC programmed */
448 int be_get_temp_freq
;
455 u16 max_event_queues
;
461 #define be_physfn(adapter) (!adapter->virtfn)
462 #define sriov_enabled(adapter) (adapter->num_vfs > 0)
463 #define sriov_want(adapter) (adapter->dev_num_vfs && num_vfs && \
465 #define for_all_vfs(adapter, vf_cfg, i) \
466 for (i = 0, vf_cfg = &adapter->vf_cfg[i]; i < adapter->num_vfs; \
472 #define lancer_chip(adapter) (adapter->pdev->device == OC_DEVICE_ID3 || \
473 adapter->pdev->device == OC_DEVICE_ID4)
475 #define skyhawk_chip(adapter) (adapter->pdev->device == OC_DEVICE_ID5 || \
476 adapter->pdev->device == OC_DEVICE_ID6)
478 #define BE3_chip(adapter) (adapter->pdev->device == BE_DEVICE_ID2 || \
479 adapter->pdev->device == OC_DEVICE_ID2)
481 #define BE2_chip(adapter) (adapter->pdev->device == BE_DEVICE_ID1 || \
482 adapter->pdev->device == OC_DEVICE_ID1)
484 #define BEx_chip(adapter) (BE3_chip(adapter) || BE2_chip(adapter))
486 #define be_roce_supported(adapter) (skyhawk_chip(adapter) && \
487 (adapter->function_mode & RDMA_ENABLED))
489 extern const struct ethtool_ops be_ethtool_ops
;
491 #define msix_enabled(adapter) (adapter->num_msix_vec > 0)
492 #define num_irqs(adapter) (msix_enabled(adapter) ? \
493 adapter->num_msix_vec : 1)
494 #define tx_stats(txo) (&(txo)->stats)
495 #define rx_stats(rxo) (&(rxo)->stats)
497 /* The default RXQ is the last RXQ */
498 #define default_rxo(adpt) (&adpt->rx_obj[adpt->num_rx_qs - 1])
500 #define for_all_rx_queues(adapter, rxo, i) \
501 for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs; \
504 /* Skip the default non-rss queue (last one)*/
505 #define for_all_rss_queues(adapter, rxo, i) \
506 for (i = 0, rxo = &adapter->rx_obj[i]; i < (adapter->num_rx_qs - 1);\
509 #define for_all_tx_queues(adapter, txo, i) \
510 for (i = 0, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs; \
513 #define for_all_evt_queues(adapter, eqo, i) \
514 for (i = 0, eqo = &adapter->eq_obj[i]; i < adapter->num_evt_qs; \
517 #define is_mcc_eqo(eqo) (eqo->idx == 0)
518 #define mcc_eqo(adapter) (&adapter->eq_obj[0])
520 #define PAGE_SHIFT_4K 12
521 #define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
523 /* Returns number of pages spanned by the data starting at the given addr */
524 #define PAGES_4K_SPANNED(_address, size) \
525 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
526 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
528 /* Returns bit offset within a DWORD of a bitfield */
529 #define AMAP_BIT_OFFSET(_struct, field) \
530 (((size_t)&(((_struct *)0)->field))%32)
532 /* Returns the bit mask of the field that is NOT shifted into location. */
533 static inline u32
amap_mask(u32 bitsize
)
535 return (bitsize
== 32 ? 0xFFFFFFFF : (1 << bitsize
) - 1);
539 amap_set(void *ptr
, u32 dw_offset
, u32 mask
, u32 offset
, u32 value
)
541 u32
*dw
= (u32
*) ptr
+ dw_offset
;
542 *dw
&= ~(mask
<< offset
);
543 *dw
|= (mask
& value
) << offset
;
546 #define AMAP_SET_BITS(_struct, field, ptr, val) \
548 offsetof(_struct, field)/32, \
549 amap_mask(sizeof(((_struct *)0)->field)), \
550 AMAP_BIT_OFFSET(_struct, field), \
553 static inline u32
amap_get(void *ptr
, u32 dw_offset
, u32 mask
, u32 offset
)
555 u32
*dw
= (u32
*) ptr
;
556 return mask
& (*(dw
+ dw_offset
) >> offset
);
559 #define AMAP_GET_BITS(_struct, field, ptr) \
561 offsetof(_struct, field)/32, \
562 amap_mask(sizeof(((_struct *)0)->field)), \
563 AMAP_BIT_OFFSET(_struct, field))
565 #define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
566 #define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
567 static inline void swap_dws(void *wrb
, int len
)
573 *dw
= cpu_to_le32(*dw
);
577 #endif /* __BIG_ENDIAN */
580 static inline u8
is_tcp_pkt(struct sk_buff
*skb
)
584 if (ip_hdr(skb
)->version
== 4)
585 val
= (ip_hdr(skb
)->protocol
== IPPROTO_TCP
);
586 else if (ip_hdr(skb
)->version
== 6)
587 val
= (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_TCP
);
592 static inline u8
is_udp_pkt(struct sk_buff
*skb
)
596 if (ip_hdr(skb
)->version
== 4)
597 val
= (ip_hdr(skb
)->protocol
== IPPROTO_UDP
);
598 else if (ip_hdr(skb
)->version
== 6)
599 val
= (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_UDP
);
604 static inline bool is_ipv4_pkt(struct sk_buff
*skb
)
606 return skb
->protocol
== htons(ETH_P_IP
) && ip_hdr(skb
)->version
== 4;
609 static inline void be_vf_eth_addr_generate(struct be_adapter
*adapter
, u8
*mac
)
613 addr
= jhash(adapter
->netdev
->dev_addr
, ETH_ALEN
, 0);
615 mac
[5] = (u8
)(addr
& 0xFF);
616 mac
[4] = (u8
)((addr
>> 8) & 0xFF);
617 mac
[3] = (u8
)((addr
>> 16) & 0xFF);
618 /* Use the OUI from the current MAC address */
619 memcpy(mac
, adapter
->netdev
->dev_addr
, 3);
622 static inline bool be_multi_rxq(const struct be_adapter
*adapter
)
624 return adapter
->num_rx_qs
> 1;
627 static inline bool be_error(struct be_adapter
*adapter
)
629 return adapter
->eeh_error
|| adapter
->hw_error
|| adapter
->fw_timeout
;
632 static inline bool be_hw_error(struct be_adapter
*adapter
)
634 return adapter
->eeh_error
|| adapter
->hw_error
;
637 static inline void be_clear_all_error(struct be_adapter
*adapter
)
639 adapter
->eeh_error
= false;
640 adapter
->hw_error
= false;
641 adapter
->fw_timeout
= false;
644 static inline bool be_is_wol_excluded(struct be_adapter
*adapter
)
646 struct pci_dev
*pdev
= adapter
->pdev
;
648 if (!be_physfn(adapter
))
651 switch (pdev
->subsystem_device
) {
652 case OC_SUBSYS_DEVICE_ID1
:
653 case OC_SUBSYS_DEVICE_ID2
:
654 case OC_SUBSYS_DEVICE_ID3
:
655 case OC_SUBSYS_DEVICE_ID4
:
662 static inline int qnq_async_evt_rcvd(struct be_adapter
*adapter
)
664 return adapter
->flags
& BE_FLAGS_QNQ_ASYNC_EVT_RCVD
;
667 extern void be_cq_notify(struct be_adapter
*adapter
, u16 qid
, bool arm
,
669 extern void be_link_status_update(struct be_adapter
*adapter
, u8 link_status
);
670 extern void be_parse_stats(struct be_adapter
*adapter
);
671 extern int be_load_fw(struct be_adapter
*adapter
, u8
*func
);
672 extern bool be_is_wol_supported(struct be_adapter
*adapter
);
673 extern bool be_pause_supported(struct be_adapter
*adapter
);
674 extern u32
be_get_fw_log_level(struct be_adapter
*adapter
);
677 * internal function to initialize-cleanup roce device.
679 extern void be_roce_dev_add(struct be_adapter
*);
680 extern void be_roce_dev_remove(struct be_adapter
*);
683 * internal function to open-close roce device during ifup-ifdown.
685 extern void be_roce_dev_open(struct be_adapter
*);
686 extern void be_roce_dev_close(struct be_adapter
*);