2 * Copyright (C) 2005 - 2014 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 "10.2u"
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 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 128u
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 BE2_MAX_RSS_QS 4
103 #define BE3_MAX_RSS_QS 16
104 #define BE3_MAX_TX_QS 16
105 #define BE3_MAX_EVT_QS 16
106 #define BE3_SRIOV_MAX_EVT_QS 8
109 #define MAX_EVT_QS 32
112 #define MAX_ROCE_EQS 5
113 #define MAX_MSIX_VECTORS 32
114 #define MIN_MSIX_VECTORS 1
115 #define BE_TX_BUDGET 256
116 #define BE_NAPI_WEIGHT 64
117 #define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */
118 #define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST)
120 #define MAX_VFS 30 /* Max VFs supported by BE3 FW */
121 #define FW_VER_LEN 32
129 struct be_queue_info
{
130 struct be_dma_mem dma_mem
;
132 u16 entry_size
; /* Size of an element in the queue */
136 atomic_t used
; /* Number of valid elements in the queue */
139 static inline u32
MODULO(u16 val
, u16 limit
)
141 BUG_ON(limit
& (limit
- 1));
142 return val
& (limit
- 1);
145 static inline void index_adv(u16
*index
, u16 val
, u16 limit
)
147 *index
= MODULO((*index
+ val
), limit
);
150 static inline void index_inc(u16
*index
, u16 limit
)
152 *index
= MODULO((*index
+ 1), limit
);
155 static inline void *queue_head_node(struct be_queue_info
*q
)
157 return q
->dma_mem
.va
+ q
->head
* q
->entry_size
;
160 static inline void *queue_tail_node(struct be_queue_info
*q
)
162 return q
->dma_mem
.va
+ q
->tail
* q
->entry_size
;
165 static inline void *queue_index_node(struct be_queue_info
*q
, u16 index
)
167 return q
->dma_mem
.va
+ index
* q
->entry_size
;
170 static inline void queue_head_inc(struct be_queue_info
*q
)
172 index_inc(&q
->head
, q
->len
);
175 static inline void index_dec(u16
*index
, u16 limit
)
177 *index
= MODULO((*index
- 1), limit
);
180 static inline void queue_tail_inc(struct be_queue_info
*q
)
182 index_inc(&q
->tail
, q
->len
);
186 struct be_queue_info q
;
189 /* Adaptive interrupt coalescing (AIC) info */
191 u32 min_eqd
; /* in usecs */
192 u32 max_eqd
; /* in usecs */
193 u32 eqd
; /* configured val when aic is off */
194 u32 cur_eqd
; /* in usecs */
196 u8 idx
; /* array index */
200 struct napi_struct napi
;
201 struct be_adapter
*adapter
;
203 #ifdef CONFIG_NET_RX_BUSY_POLL
205 #define BE_EQ_NAPI 1 /* napi owns this EQ */
206 #define BE_EQ_POLL 2 /* poll owns this EQ */
207 #define BE_EQ_LOCKED (BE_EQ_NAPI | BE_EQ_POLL)
208 #define BE_EQ_NAPI_YIELD 4 /* napi yielded this EQ */
209 #define BE_EQ_POLL_YIELD 8 /* poll yielded this EQ */
210 #define BE_EQ_YIELD (BE_EQ_NAPI_YIELD | BE_EQ_POLL_YIELD)
211 #define BE_EQ_USER_PEND (BE_EQ_POLL | BE_EQ_POLL_YIELD)
213 spinlock_t lock
; /* lock to serialize napi and busy-poll */
214 #endif /* CONFIG_NET_RX_BUSY_POLL */
215 } ____cacheline_aligned_in_smp
;
217 struct be_aic_obj
{ /* Adaptive interrupt coalescing (AIC) info */
219 u32 min_eqd
; /* in usecs */
220 u32 max_eqd
; /* in usecs */
221 u32 prev_eqd
; /* in usecs */
222 u32 et_eqd
; /* configured val when aic is off */
224 u64 rx_pkts_prev
; /* Used to calculate RX pps */
225 u64 tx_reqs_prev
; /* Used to calculate TX pps */
234 struct be_queue_info q
;
235 struct be_queue_info cq
;
247 u32 tx_drv_drops
; /* pkts dropped by driver */
248 struct u64_stats_sync sync
;
249 struct u64_stats_sync sync_compl
;
254 struct be_queue_info q
;
255 struct be_queue_info cq
;
256 /* Remember the skbs that were transmitted */
257 struct sk_buff
*sent_skb_list
[TX_Q_LEN
];
258 struct be_tx_stats stats
;
259 } ____cacheline_aligned_in_smp
;
261 /* Struct to remember the pages posted for rx frags */
262 struct be_rx_page_info
{
264 /* set to page-addr for last frag of the page & frag-addr otherwise */
265 DEFINE_DMA_UNMAP_ADDR(bus
);
267 bool last_frag
; /* last frag of the page */
273 u32 rx_drops_no_skbs
; /* skb allocation errors */
274 u32 rx_drops_no_frags
; /* HW has no fetched frags */
275 u32 rx_post_fail
; /* page post alloc failures */
278 u32 rx_compl_err
; /* completions with err set */
279 struct u64_stats_sync sync
;
282 struct be_rx_compl_info
{
303 struct be_adapter
*adapter
;
304 struct be_queue_info q
;
305 struct be_queue_info cq
;
306 struct be_rx_compl_info rxcp
;
307 struct be_rx_page_info page_info_tbl
[RX_Q_LEN
];
308 struct be_rx_stats stats
;
310 bool rx_post_starved
; /* Zero rx frags have been posted to BE */
311 } ____cacheline_aligned_in_smp
;
313 struct be_drv_stats
{
314 u32 be_on_die_temperature
;
316 u32 rx_drops_no_pbuf
;
317 u32 rx_drops_no_txpb
;
318 u32 rx_drops_no_erx_descr
;
319 u32 rx_drops_no_tpre_descr
;
320 u32 rx_drops_too_many_frags
;
321 u32 forwarded_packets
;
324 u32 rx_alignment_symbol_errors
;
326 u32 rx_priority_pause_frames
;
327 u32 rx_control_frames
;
328 u32 rx_in_range_errors
;
329 u32 rx_out_range_errors
;
330 u32 rx_frame_too_long
;
331 u32 rx_address_filtered
;
332 u32 rx_dropped_too_small
;
333 u32 rx_dropped_too_short
;
334 u32 rx_dropped_header_too_small
;
335 u32 rx_dropped_tcp_length
;
337 u32 rx_ip_checksum_errs
;
338 u32 rx_tcp_checksum_errs
;
339 u32 rx_udp_checksum_errs
;
341 u32 tx_priority_pauseframes
;
342 u32 tx_controlframes
;
343 u32 rxpp_fifo_overflow_drop
;
344 u32 rx_input_fifo_overflow_drop
;
345 u32 pmem_fifo_overflow_drop
;
347 u32 rx_roce_bytes_lsd
;
348 u32 rx_roce_bytes_msd
;
350 u32 roce_drops_payload_len
;
354 /* A vlan-id of 0xFFFF must be used to clear transparent vlan-tagging */
355 #define BE_RESET_VLAN_TAG_ID 0xFFFF
358 unsigned char mac_addr
[ETH_ALEN
];
371 #define BE_FLAGS_LINK_STATUS_INIT 1
372 #define BE_FLAGS_WORKER_SCHEDULED (1 << 3)
373 #define BE_FLAGS_VLAN_PROMISC (1 << 4)
374 #define BE_FLAGS_NAPI_ENABLED (1 << 9)
375 #define BE_FLAGS_QNQ_ASYNC_EVT_RCVD (1 << 11)
376 #define BE_FLAGS_VXLAN_OFFLOADS (1 << 12)
377 #define BE_FLAGS_SETUP_DONE (1 << 13)
379 #define BE_UC_PMAC_COUNT 30
380 #define BE_VF_UC_PMAC_COUNT 2
381 /* Ethtool set_dump flags */
382 #define LANCER_INITIATE_FW_DUMP 0x1
392 u16 auto_speeds_supported
;
393 u16 fixed_speeds_supported
;
400 struct be_resources
{
401 u16 max_vfs
; /* Total VFs "really" supported by FW/HW */
406 u16 max_uc_mac
; /* Max UC MACs programmable */
407 u16 max_vlans
; /* Number of vlans supported */
413 struct pci_dev
*pdev
;
414 struct net_device
*netdev
;
416 u8 __iomem
*csr
; /* CSR BAR used only for BE2/3 */
417 u8 __iomem
*db
; /* Door Bell */
419 struct mutex mbox_lock
; /* For serializing mbox cmds to BE card */
420 struct be_dma_mem mbox_mem
;
421 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
422 * is stored for freeing purpose */
423 struct be_dma_mem mbox_mem_alloced
;
425 struct be_mcc_obj mcc_obj
;
426 spinlock_t mcc_lock
; /* For serializing mcc cmds to BE card */
427 spinlock_t mcc_cq_lock
;
429 u16 cfg_num_qs
; /* configured via set-channels */
432 struct be_eq_obj eq_obj
[MAX_EVT_QS
];
433 struct msix_entry msix_entries
[MAX_MSIX_VECTORS
];
438 struct be_tx_obj tx_obj
[MAX_TX_QS
];
442 struct be_rx_obj rx_obj
[MAX_RX_QS
];
443 u32 big_page_size
; /* Compounded page size shared by rx wrbs */
445 struct be_drv_stats drv_stats
;
446 struct be_aic_obj aic_obj
[MAX_EVT_QS
];
448 u8 vlan_tag
[VLAN_N_VID
];
449 u8 vlan_prio_bmap
; /* Available Priority BitMap */
450 u16 recommended_prio
; /* Recommended Priority */
451 struct be_dma_mem rx_filter
; /* Cmd DMA mem for rx-filter */
453 struct be_dma_mem stats_cmd
;
454 /* Work queue used to perform periodic tasks like getting statistics */
455 struct delayed_work work
;
458 struct delayed_work func_recovery_work
;
461 /* Ethtool knobs and info */
462 char fw_ver
[FW_VER_LEN
];
463 char fw_on_flash
[FW_VER_LEN
];
464 int if_handle
; /* Used to configure filtering */
465 u32
*pmac_id
; /* MAC addr handle used by BE card */
466 u32 beacon_state
; /* for set_phys_id */
477 u32 rx_fc
; /* Rx flow control */
478 u32 tx_fc
; /* Tx flow control */
485 u32 num_msix_roce_vec
;
486 struct ocrdma_dev
*ocrdma_dev
;
487 struct list_head entry
;
490 struct completion et_cmd_compl
;
492 struct be_resources res
; /* resources available for the func */
493 u16 num_vfs
; /* Number of VFs provisioned by PF */
495 struct be_vf_cfg
*vf_cfg
;
504 u32 uc_macs
; /* Count of secondary UC MAC programmed */
508 int be_get_temp_freq
;
513 #define be_physfn(adapter) (!adapter->virtfn)
514 #define be_virtfn(adapter) (adapter->virtfn)
515 #define sriov_enabled(adapter) (adapter->num_vfs > 0)
516 #define sriov_want(adapter) (be_physfn(adapter) && \
517 (num_vfs || pci_num_vf(adapter->pdev)))
518 #define for_all_vfs(adapter, vf_cfg, i) \
519 for (i = 0, vf_cfg = &adapter->vf_cfg[i]; i < adapter->num_vfs; \
525 #define be_max_vlans(adapter) (adapter->res.max_vlans)
526 #define be_max_uc(adapter) (adapter->res.max_uc_mac)
527 #define be_max_mc(adapter) (adapter->res.max_mcast_mac)
528 #define be_max_vfs(adapter) (adapter->res.max_vfs)
529 #define be_max_rss(adapter) (adapter->res.max_rss_qs)
530 #define be_max_txqs(adapter) (adapter->res.max_tx_qs)
531 #define be_max_prio_txqs(adapter) (adapter->res.max_prio_tx_qs)
532 #define be_max_rxqs(adapter) (adapter->res.max_rx_qs)
533 #define be_max_eqs(adapter) (adapter->res.max_evt_qs)
534 #define be_if_cap_flags(adapter) (adapter->res.if_cap_flags)
536 static inline u16
be_max_qs(struct be_adapter
*adapter
)
538 /* If no RSS, need atleast the one def RXQ */
539 u16 num
= max_t(u16
, be_max_rss(adapter
), 1);
541 num
= min(num
, be_max_eqs(adapter
));
542 return min_t(u16
, num
, num_online_cpus());
545 /* Is BE in pvid_tagging mode */
546 #define be_pvid_tagging_enabled(adapter) (adapter->pvid)
548 /* Is BE in QNQ multi-channel mode */
549 #define be_is_qnq_mode(adapter) (adapter->mc_type == FLEX10 || \
550 adapter->mc_type == vNIC1 || \
551 adapter->mc_type == UFP)
553 #define lancer_chip(adapter) (adapter->pdev->device == OC_DEVICE_ID3 || \
554 adapter->pdev->device == OC_DEVICE_ID4)
556 #define skyhawk_chip(adapter) (adapter->pdev->device == OC_DEVICE_ID5 || \
557 adapter->pdev->device == OC_DEVICE_ID6)
559 #define BE3_chip(adapter) (adapter->pdev->device == BE_DEVICE_ID2 || \
560 adapter->pdev->device == OC_DEVICE_ID2)
562 #define BE2_chip(adapter) (adapter->pdev->device == BE_DEVICE_ID1 || \
563 adapter->pdev->device == OC_DEVICE_ID1)
565 #define BEx_chip(adapter) (BE3_chip(adapter) || BE2_chip(adapter))
567 #define be_roce_supported(adapter) (skyhawk_chip(adapter) && \
568 (adapter->function_mode & RDMA_ENABLED))
570 extern const struct ethtool_ops be_ethtool_ops
;
572 #define msix_enabled(adapter) (adapter->num_msix_vec > 0)
573 #define num_irqs(adapter) (msix_enabled(adapter) ? \
574 adapter->num_msix_vec : 1)
575 #define tx_stats(txo) (&(txo)->stats)
576 #define rx_stats(rxo) (&(rxo)->stats)
578 /* The default RXQ is the last RXQ */
579 #define default_rxo(adpt) (&adpt->rx_obj[adpt->num_rx_qs - 1])
581 #define for_all_rx_queues(adapter, rxo, i) \
582 for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs; \
585 /* Skip the default non-rss queue (last one)*/
586 #define for_all_rss_queues(adapter, rxo, i) \
587 for (i = 0, rxo = &adapter->rx_obj[i]; i < (adapter->num_rx_qs - 1);\
590 #define for_all_tx_queues(adapter, txo, i) \
591 for (i = 0, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs; \
594 #define for_all_evt_queues(adapter, eqo, i) \
595 for (i = 0, eqo = &adapter->eq_obj[i]; i < adapter->num_evt_qs; \
598 #define for_all_rx_queues_on_eq(adapter, eqo, rxo, i) \
599 for (i = eqo->idx, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs;\
600 i += adapter->num_evt_qs, rxo += adapter->num_evt_qs)
602 #define is_mcc_eqo(eqo) (eqo->idx == 0)
603 #define mcc_eqo(adapter) (&adapter->eq_obj[0])
605 #define PAGE_SHIFT_4K 12
606 #define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
608 /* Returns number of pages spanned by the data starting at the given addr */
609 #define PAGES_4K_SPANNED(_address, size) \
610 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
611 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
613 /* Returns bit offset within a DWORD of a bitfield */
614 #define AMAP_BIT_OFFSET(_struct, field) \
615 (((size_t)&(((_struct *)0)->field))%32)
617 /* Returns the bit mask of the field that is NOT shifted into location. */
618 static inline u32
amap_mask(u32 bitsize
)
620 return (bitsize
== 32 ? 0xFFFFFFFF : (1 << bitsize
) - 1);
624 amap_set(void *ptr
, u32 dw_offset
, u32 mask
, u32 offset
, u32 value
)
626 u32
*dw
= (u32
*) ptr
+ dw_offset
;
627 *dw
&= ~(mask
<< offset
);
628 *dw
|= (mask
& value
) << offset
;
631 #define AMAP_SET_BITS(_struct, field, ptr, val) \
633 offsetof(_struct, field)/32, \
634 amap_mask(sizeof(((_struct *)0)->field)), \
635 AMAP_BIT_OFFSET(_struct, field), \
638 static inline u32
amap_get(void *ptr
, u32 dw_offset
, u32 mask
, u32 offset
)
640 u32
*dw
= (u32
*) ptr
;
641 return mask
& (*(dw
+ dw_offset
) >> offset
);
644 #define AMAP_GET_BITS(_struct, field, ptr) \
646 offsetof(_struct, field)/32, \
647 amap_mask(sizeof(((_struct *)0)->field)), \
648 AMAP_BIT_OFFSET(_struct, field))
650 #define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
651 #define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
652 static inline void swap_dws(void *wrb
, int len
)
658 *dw
= cpu_to_le32(*dw
);
662 #endif /* __BIG_ENDIAN */
665 static inline u8
is_tcp_pkt(struct sk_buff
*skb
)
669 if (ip_hdr(skb
)->version
== 4)
670 val
= (ip_hdr(skb
)->protocol
== IPPROTO_TCP
);
671 else if (ip_hdr(skb
)->version
== 6)
672 val
= (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_TCP
);
677 static inline u8
is_udp_pkt(struct sk_buff
*skb
)
681 if (ip_hdr(skb
)->version
== 4)
682 val
= (ip_hdr(skb
)->protocol
== IPPROTO_UDP
);
683 else if (ip_hdr(skb
)->version
== 6)
684 val
= (ipv6_hdr(skb
)->nexthdr
== NEXTHDR_UDP
);
689 static inline bool is_ipv4_pkt(struct sk_buff
*skb
)
691 return skb
->protocol
== htons(ETH_P_IP
) && ip_hdr(skb
)->version
== 4;
694 static inline void be_vf_eth_addr_generate(struct be_adapter
*adapter
, u8
*mac
)
698 addr
= jhash(adapter
->netdev
->dev_addr
, ETH_ALEN
, 0);
700 mac
[5] = (u8
)(addr
& 0xFF);
701 mac
[4] = (u8
)((addr
>> 8) & 0xFF);
702 mac
[3] = (u8
)((addr
>> 16) & 0xFF);
703 /* Use the OUI from the current MAC address */
704 memcpy(mac
, adapter
->netdev
->dev_addr
, 3);
707 static inline bool be_multi_rxq(const struct be_adapter
*adapter
)
709 return adapter
->num_rx_qs
> 1;
712 static inline bool be_error(struct be_adapter
*adapter
)
714 return adapter
->eeh_error
|| adapter
->hw_error
|| adapter
->fw_timeout
;
717 static inline bool be_hw_error(struct be_adapter
*adapter
)
719 return adapter
->eeh_error
|| adapter
->hw_error
;
722 static inline void be_clear_all_error(struct be_adapter
*adapter
)
724 adapter
->eeh_error
= false;
725 adapter
->hw_error
= false;
726 adapter
->fw_timeout
= false;
729 static inline bool be_is_wol_excluded(struct be_adapter
*adapter
)
731 struct pci_dev
*pdev
= adapter
->pdev
;
733 if (!be_physfn(adapter
))
736 switch (pdev
->subsystem_device
) {
737 case OC_SUBSYS_DEVICE_ID1
:
738 case OC_SUBSYS_DEVICE_ID2
:
739 case OC_SUBSYS_DEVICE_ID3
:
740 case OC_SUBSYS_DEVICE_ID4
:
747 static inline int qnq_async_evt_rcvd(struct be_adapter
*adapter
)
749 return adapter
->flags
& BE_FLAGS_QNQ_ASYNC_EVT_RCVD
;
752 #ifdef CONFIG_NET_RX_BUSY_POLL
753 static inline bool be_lock_napi(struct be_eq_obj
*eqo
)
757 spin_lock(&eqo
->lock
); /* BH is already disabled */
758 if (eqo
->state
& BE_EQ_LOCKED
) {
759 WARN_ON(eqo
->state
& BE_EQ_NAPI
);
760 eqo
->state
|= BE_EQ_NAPI_YIELD
;
763 eqo
->state
= BE_EQ_NAPI
;
765 spin_unlock(&eqo
->lock
);
769 static inline void be_unlock_napi(struct be_eq_obj
*eqo
)
771 spin_lock(&eqo
->lock
); /* BH is already disabled */
773 WARN_ON(eqo
->state
& (BE_EQ_POLL
| BE_EQ_NAPI_YIELD
));
774 eqo
->state
= BE_EQ_IDLE
;
776 spin_unlock(&eqo
->lock
);
779 static inline bool be_lock_busy_poll(struct be_eq_obj
*eqo
)
783 spin_lock_bh(&eqo
->lock
);
784 if (eqo
->state
& BE_EQ_LOCKED
) {
785 eqo
->state
|= BE_EQ_POLL_YIELD
;
788 eqo
->state
|= BE_EQ_POLL
;
790 spin_unlock_bh(&eqo
->lock
);
794 static inline void be_unlock_busy_poll(struct be_eq_obj
*eqo
)
796 spin_lock_bh(&eqo
->lock
);
798 WARN_ON(eqo
->state
& (BE_EQ_NAPI
));
799 eqo
->state
= BE_EQ_IDLE
;
801 spin_unlock_bh(&eqo
->lock
);
804 static inline void be_enable_busy_poll(struct be_eq_obj
*eqo
)
806 spin_lock_init(&eqo
->lock
);
807 eqo
->state
= BE_EQ_IDLE
;
810 static inline void be_disable_busy_poll(struct be_eq_obj
*eqo
)
814 /* It's enough to just acquire napi lock on the eqo to stop
815 * be_busy_poll() from processing any queueus.
817 while (!be_lock_napi(eqo
))
823 #else /* CONFIG_NET_RX_BUSY_POLL */
825 static inline bool be_lock_napi(struct be_eq_obj
*eqo
)
830 static inline void be_unlock_napi(struct be_eq_obj
*eqo
)
834 static inline bool be_lock_busy_poll(struct be_eq_obj
*eqo
)
839 static inline void be_unlock_busy_poll(struct be_eq_obj
*eqo
)
843 static inline void be_enable_busy_poll(struct be_eq_obj
*eqo
)
847 static inline void be_disable_busy_poll(struct be_eq_obj
*eqo
)
850 #endif /* CONFIG_NET_RX_BUSY_POLL */
852 void be_cq_notify(struct be_adapter
*adapter
, u16 qid
, bool arm
,
854 void be_link_status_update(struct be_adapter
*adapter
, u8 link_status
);
855 void be_parse_stats(struct be_adapter
*adapter
);
856 int be_load_fw(struct be_adapter
*adapter
, u8
*func
);
857 bool be_is_wol_supported(struct be_adapter
*adapter
);
858 bool be_pause_supported(struct be_adapter
*adapter
);
859 u32
be_get_fw_log_level(struct be_adapter
*adapter
);
861 static inline int fw_major_num(const char *fw_ver
)
865 sscanf(fw_ver
, "%d.", &fw_major
);
870 int be_update_queues(struct be_adapter
*adapter
);
871 int be_poll(struct napi_struct
*napi
, int budget
);
874 * internal function to initialize-cleanup roce device.
876 void be_roce_dev_add(struct be_adapter
*);
877 void be_roce_dev_remove(struct be_adapter
*);
880 * internal function to open-close roce device during ifup-ifdown.
882 void be_roce_dev_open(struct be_adapter
*);
883 void be_roce_dev_close(struct be_adapter
*);