1 /* bnx2x_cmn.h: QLogic Everest network driver.
2  *
3  * Copyright (c) 2007-2013 Broadcom Corporation
4  * Copyright (c) 2014 QLogic Corporation
5  * All rights reserved
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation.
10  *
11  * Maintained by: Ariel Elior <ariel.elior@qlogic.com>
12  * Written by: Eliezer Tamir
13  * Based on code from Michael Chan's bnx2 driver
14  * UDP CSUM errata workaround by Arik Gendelman
15  * Slowpath and fastpath rework by Vladislav Zolotarov
16  * Statistics and Link management by Yitchak Gertner
17  *
18  */
19 #ifndef BNX2X_CMN_H
20 #define BNX2X_CMN_H
21 
22 #include <linux/types.h>
23 #include <linux/pci.h>
24 #include <linux/netdevice.h>
25 #include <linux/etherdevice.h>
26 #include <linux/irq.h>
27 
28 #include "bnx2x.h"
29 #include "bnx2x_sriov.h"
30 
31 /* This is used as a replacement for an MCP if it's not present */
32 extern int bnx2x_load_count[2][3]; /* per-path: 0-common, 1-port0, 2-port1 */
33 extern int bnx2x_num_queues;
34 
35 /************************ Macros ********************************/
36 #define BNX2X_PCI_FREE(x, y, size) \
37 	do { \
38 		if (x) { \
39 			dma_free_coherent(&bp->pdev->dev, size, (void *)x, y); \
40 			x = NULL; \
41 			y = 0; \
42 		} \
43 	} while (0)
44 
45 #define BNX2X_FREE(x) \
46 	do { \
47 		if (x) { \
48 			kfree((void *)x); \
49 			x = NULL; \
50 		} \
51 	} while (0)
52 
53 #define BNX2X_PCI_ALLOC(y, size)					\
54 ({									\
55 	void *x = dma_alloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL); \
56 	if (x)								\
57 		DP(NETIF_MSG_HW,					\
58 		   "BNX2X_PCI_ALLOC: Physical %Lx Virtual %p\n",	\
59 		   (unsigned long long)(*y), x);			\
60 	x;								\
61 })
62 #define BNX2X_PCI_FALLOC(y, size)					\
63 ({									\
64 	void *x = dma_alloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL); \
65 	if (x) {							\
66 		memset(x, 0xff, size);					\
67 		DP(NETIF_MSG_HW,					\
68 		   "BNX2X_PCI_FALLOC: Physical %Lx Virtual %p\n",	\
69 		   (unsigned long long)(*y), x);			\
70 	}								\
71 	x;								\
72 })
73 
74 /*********************** Interfaces ****************************
75  *  Functions that need to be implemented by each driver version
76  */
77 /* Init */
78 
79 /**
80  * bnx2x_send_unload_req - request unload mode from the MCP.
81  *
82  * @bp:			driver handle
83  * @unload_mode:	requested function's unload mode
84  *
85  * Return unload mode returned by the MCP: COMMON, PORT or FUNC.
86  */
87 u32 bnx2x_send_unload_req(struct bnx2x *bp, int unload_mode);
88 
89 /**
90  * bnx2x_send_unload_done - send UNLOAD_DONE command to the MCP.
91  *
92  * @bp:		driver handle
93  * @keep_link:		true iff link should be kept up
94  */
95 void bnx2x_send_unload_done(struct bnx2x *bp, bool keep_link);
96 
97 /**
98  * bnx2x_config_rss_pf - configure RSS parameters in a PF.
99  *
100  * @bp:			driver handle
101  * @rss_obj:		RSS object to use
102  * @ind_table:		indirection table to configure
103  * @config_hash:	re-configure RSS hash keys configuration
104  * @enable:		enabled or disabled configuration
105  */
106 int bnx2x_rss(struct bnx2x *bp, struct bnx2x_rss_config_obj *rss_obj,
107 	      bool config_hash, bool enable);
108 
109 /**
110  * bnx2x__init_func_obj - init function object
111  *
112  * @bp:			driver handle
113  *
114  * Initializes the Function Object with the appropriate
115  * parameters which include a function slow path driver
116  * interface.
117  */
118 void bnx2x__init_func_obj(struct bnx2x *bp);
119 
120 /**
121  * bnx2x_setup_queue - setup eth queue.
122  *
123  * @bp:		driver handle
124  * @fp:		pointer to the fastpath structure
125  * @leading:	boolean
126  *
127  */
128 int bnx2x_setup_queue(struct bnx2x *bp, struct bnx2x_fastpath *fp,
129 		       bool leading);
130 
131 /**
132  * bnx2x_setup_leading - bring up a leading eth queue.
133  *
134  * @bp:		driver handle
135  */
136 int bnx2x_setup_leading(struct bnx2x *bp);
137 
138 /**
139  * bnx2x_fw_command - send the MCP a request
140  *
141  * @bp:		driver handle
142  * @command:	request
143  * @param:	request's parameter
144  *
145  * block until there is a reply
146  */
147 u32 bnx2x_fw_command(struct bnx2x *bp, u32 command, u32 param);
148 
149 /**
150  * bnx2x_initial_phy_init - initialize link parameters structure variables.
151  *
152  * @bp:		driver handle
153  * @load_mode:	current mode
154  */
155 int bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode);
156 
157 /**
158  * bnx2x_link_set - configure hw according to link parameters structure.
159  *
160  * @bp:		driver handle
161  */
162 void bnx2x_link_set(struct bnx2x *bp);
163 
164 /**
165  * bnx2x_force_link_reset - Forces link reset, and put the PHY
166  * in reset as well.
167  *
168  * @bp:		driver handle
169  */
170 void bnx2x_force_link_reset(struct bnx2x *bp);
171 
172 /**
173  * bnx2x_link_test - query link status.
174  *
175  * @bp:		driver handle
176  * @is_serdes:	bool
177  *
178  * Returns 0 if link is UP.
179  */
180 u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes);
181 
182 /**
183  * bnx2x_drv_pulse - write driver pulse to shmem
184  *
185  * @bp:		driver handle
186  *
187  * writes the value in bp->fw_drv_pulse_wr_seq to drv_pulse mbox
188  * in the shmem.
189  */
190 void bnx2x_drv_pulse(struct bnx2x *bp);
191 
192 /**
193  * bnx2x_igu_ack_sb - update IGU with current SB value
194  *
195  * @bp:		driver handle
196  * @igu_sb_id:	SB id
197  * @segment:	SB segment
198  * @index:	SB index
199  * @op:		SB operation
200  * @update:	is HW update required
201  */
202 void bnx2x_igu_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 segment,
203 		      u16 index, u8 op, u8 update);
204 
205 /* Disable transactions from chip to host */
206 void bnx2x_pf_disable(struct bnx2x *bp);
207 int bnx2x_pretend_func(struct bnx2x *bp, u16 pretend_func_val);
208 
209 /**
210  * bnx2x__link_status_update - handles link status change.
211  *
212  * @bp:		driver handle
213  */
214 void bnx2x__link_status_update(struct bnx2x *bp);
215 
216 /**
217  * bnx2x_link_report - report link status to upper layer.
218  *
219  * @bp:		driver handle
220  */
221 void bnx2x_link_report(struct bnx2x *bp);
222 
223 /* None-atomic version of bnx2x_link_report() */
224 void __bnx2x_link_report(struct bnx2x *bp);
225 
226 /**
227  * bnx2x_get_mf_speed - calculate MF speed.
228  *
229  * @bp:		driver handle
230  *
231  * Takes into account current linespeed and MF configuration.
232  */
233 u16 bnx2x_get_mf_speed(struct bnx2x *bp);
234 
235 /**
236  * bnx2x_msix_sp_int - MSI-X slowpath interrupt handler
237  *
238  * @irq:		irq number
239  * @dev_instance:	private instance
240  */
241 irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance);
242 
243 /**
244  * bnx2x_interrupt - non MSI-X interrupt handler
245  *
246  * @irq:		irq number
247  * @dev_instance:	private instance
248  */
249 irqreturn_t bnx2x_interrupt(int irq, void *dev_instance);
250 
251 /**
252  * bnx2x_cnic_notify - send command to cnic driver
253  *
254  * @bp:		driver handle
255  * @cmd:	command
256  */
257 int bnx2x_cnic_notify(struct bnx2x *bp, int cmd);
258 
259 /**
260  * bnx2x_setup_cnic_irq_info - provides cnic with IRQ information
261  *
262  * @bp:		driver handle
263  */
264 void bnx2x_setup_cnic_irq_info(struct bnx2x *bp);
265 
266 /**
267  * bnx2x_setup_cnic_info - provides cnic with updated info
268  *
269  * @bp:		driver handle
270  */
271 void bnx2x_setup_cnic_info(struct bnx2x *bp);
272 
273 /**
274  * bnx2x_int_enable - enable HW interrupts.
275  *
276  * @bp:		driver handle
277  */
278 void bnx2x_int_enable(struct bnx2x *bp);
279 
280 /**
281  * bnx2x_int_disable_sync - disable interrupts.
282  *
283  * @bp:		driver handle
284  * @disable_hw:	true, disable HW interrupts.
285  *
286  * This function ensures that there are no
287  * ISRs or SP DPCs (sp_task) are running after it returns.
288  */
289 void bnx2x_int_disable_sync(struct bnx2x *bp, int disable_hw);
290 
291 /**
292  * bnx2x_nic_init_cnic - init driver internals for cnic.
293  *
294  * @bp:		driver handle
295  * @load_code:	COMMON, PORT or FUNCTION
296  *
297  * Initializes:
298  *  - rings
299  *  - status blocks
300  *  - etc.
301  */
302 void bnx2x_nic_init_cnic(struct bnx2x *bp);
303 
304 /**
305  * bnx2x_preirq_nic_init - init driver internals.
306  *
307  * @bp:		driver handle
308  *
309  * Initializes:
310  *  - fastpath object
311  *  - fastpath rings
312  *  etc.
313  */
314 void bnx2x_pre_irq_nic_init(struct bnx2x *bp);
315 
316 /**
317  * bnx2x_postirq_nic_init - init driver internals.
318  *
319  * @bp:		driver handle
320  * @load_code:	COMMON, PORT or FUNCTION
321  *
322  * Initializes:
323  *  - status blocks
324  *  - slowpath rings
325  *  - etc.
326  */
327 void bnx2x_post_irq_nic_init(struct bnx2x *bp, u32 load_code);
328 /**
329  * bnx2x_alloc_mem_cnic - allocate driver's memory for cnic.
330  *
331  * @bp:		driver handle
332  */
333 int bnx2x_alloc_mem_cnic(struct bnx2x *bp);
334 /**
335  * bnx2x_alloc_mem - allocate driver's memory.
336  *
337  * @bp:		driver handle
338  */
339 int bnx2x_alloc_mem(struct bnx2x *bp);
340 
341 /**
342  * bnx2x_free_mem_cnic - release driver's memory for cnic.
343  *
344  * @bp:		driver handle
345  */
346 void bnx2x_free_mem_cnic(struct bnx2x *bp);
347 /**
348  * bnx2x_free_mem - release driver's memory.
349  *
350  * @bp:		driver handle
351  */
352 void bnx2x_free_mem(struct bnx2x *bp);
353 
354 /**
355  * bnx2x_set_num_queues - set number of queues according to mode.
356  *
357  * @bp:		driver handle
358  */
359 void bnx2x_set_num_queues(struct bnx2x *bp);
360 
361 /**
362  * bnx2x_chip_cleanup - cleanup chip internals.
363  *
364  * @bp:			driver handle
365  * @unload_mode:	COMMON, PORT, FUNCTION
366  * @keep_link:		true iff link should be kept up.
367  *
368  * - Cleanup MAC configuration.
369  * - Closes clients.
370  * - etc.
371  */
372 void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode, bool keep_link);
373 
374 /**
375  * bnx2x_acquire_hw_lock - acquire HW lock.
376  *
377  * @bp:		driver handle
378  * @resource:	resource bit which was locked
379  */
380 int bnx2x_acquire_hw_lock(struct bnx2x *bp, u32 resource);
381 
382 /**
383  * bnx2x_release_hw_lock - release HW lock.
384  *
385  * @bp:		driver handle
386  * @resource:	resource bit which was locked
387  */
388 int bnx2x_release_hw_lock(struct bnx2x *bp, u32 resource);
389 
390 /**
391  * bnx2x_release_leader_lock - release recovery leader lock
392  *
393  * @bp:		driver handle
394  */
395 int bnx2x_release_leader_lock(struct bnx2x *bp);
396 
397 /**
398  * bnx2x_set_eth_mac - configure eth MAC address in the HW
399  *
400  * @bp:		driver handle
401  * @set:	set or clear
402  *
403  * Configures according to the value in netdev->dev_addr.
404  */
405 int bnx2x_set_eth_mac(struct bnx2x *bp, bool set);
406 
407 /**
408  * bnx2x_set_rx_mode - set MAC filtering configurations.
409  *
410  * @dev:	netdevice
411  *
412  * called with netif_tx_lock from dev_mcast.c
413  * If bp->state is OPEN, should be called with
414  * netif_addr_lock_bh()
415  */
416 void bnx2x_set_rx_mode_inner(struct bnx2x *bp);
417 
418 /* Parity errors related */
419 void bnx2x_set_pf_load(struct bnx2x *bp);
420 bool bnx2x_clear_pf_load(struct bnx2x *bp);
421 bool bnx2x_chk_parity_attn(struct bnx2x *bp, bool *global, bool print);
422 bool bnx2x_reset_is_done(struct bnx2x *bp, int engine);
423 void bnx2x_set_reset_in_progress(struct bnx2x *bp);
424 void bnx2x_set_reset_global(struct bnx2x *bp);
425 void bnx2x_disable_close_the_gate(struct bnx2x *bp);
426 int bnx2x_init_hw_func_cnic(struct bnx2x *bp);
427 
428 /**
429  * bnx2x_sp_event - handle ramrods completion.
430  *
431  * @fp:		fastpath handle for the event
432  * @rr_cqe:	eth_rx_cqe
433  */
434 void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe);
435 
436 /**
437  * bnx2x_ilt_set_info - prepare ILT configurations.
438  *
439  * @bp:		driver handle
440  */
441 void bnx2x_ilt_set_info(struct bnx2x *bp);
442 
443 /**
444  * bnx2x_ilt_set_cnic_info - prepare ILT configurations for SRC
445  * and TM.
446  *
447  * @bp:		driver handle
448  */
449 void bnx2x_ilt_set_info_cnic(struct bnx2x *bp);
450 
451 /**
452  * bnx2x_dcbx_init - initialize dcbx protocol.
453  *
454  * @bp:		driver handle
455  */
456 void bnx2x_dcbx_init(struct bnx2x *bp, bool update_shmem);
457 
458 /**
459  * bnx2x_set_power_state - set power state to the requested value.
460  *
461  * @bp:		driver handle
462  * @state:	required state D0 or D3hot
463  *
464  * Currently only D0 and D3hot are supported.
465  */
466 int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state);
467 
468 /**
469  * bnx2x_update_max_mf_config - update MAX part of MF configuration in HW.
470  *
471  * @bp:		driver handle
472  * @value:	new value
473  */
474 void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value);
475 /* Error handling */
476 void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl);
477 
478 /* dev_close main block */
479 int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link);
480 
481 /* dev_open main block */
482 int bnx2x_nic_load(struct bnx2x *bp, int load_mode);
483 
484 /* hard_xmit callback */
485 netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev);
486 
487 /* setup_tc callback */
488 int bnx2x_setup_tc(struct net_device *dev, u8 num_tc);
489 int __bnx2x_setup_tc(struct net_device *dev, enum tc_setup_type type,
490 		     void *type_data);
491 
492 int bnx2x_get_vf_config(struct net_device *dev, int vf,
493 			struct ifla_vf_info *ivi);
494 int bnx2x_set_vf_mac(struct net_device *dev, int queue, u8 *mac);
495 int bnx2x_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos,
496 		      __be16 vlan_proto);
497 int bnx2x_set_vf_spoofchk(struct net_device *dev, int idx, bool val);
498 
499 /* select_queue callback */
500 u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb,
501 		       struct net_device *sb_dev,
502 		       select_queue_fallback_t fallback);
503 
504 static inline void bnx2x_update_rx_prod(struct bnx2x *bp,
505 					struct bnx2x_fastpath *fp,
506 					u16 bd_prod, u16 rx_comp_prod,
507 					u16 rx_sge_prod)
508 {
509 	struct ustorm_eth_rx_producers rx_prods = {0};
510 	u32 i;
511 
512 	/* Update producers */
513 	rx_prods.bd_prod = bd_prod;
514 	rx_prods.cqe_prod = rx_comp_prod;
515 	rx_prods.sge_prod = rx_sge_prod;
516 
517 	/* Make sure that the BD and SGE data is updated before updating the
518 	 * producers since FW might read the BD/SGE right after the producer
519 	 * is updated.
520 	 * This is only applicable for weak-ordered memory model archs such
521 	 * as IA-64. The following barrier is also mandatory since FW will
522 	 * assumes BDs must have buffers.
523 	 */
524 	wmb();
525 
526 	for (i = 0; i < sizeof(rx_prods)/4; i++)
527 		REG_WR_RELAXED(bp, fp->ustorm_rx_prods_offset + i * 4,
528 			       ((u32 *)&rx_prods)[i]);
529 
530 	mmiowb(); /* keep prod updates ordered */
531 
532 	DP(NETIF_MSG_RX_STATUS,
533 	   "queue[%d]:  wrote  bd_prod %u  cqe_prod %u  sge_prod %u\n",
534 	   fp->index, bd_prod, rx_comp_prod, rx_sge_prod);
535 }
536 
537 /* reload helper */
538 int bnx2x_reload_if_running(struct net_device *dev);
539 
540 int bnx2x_change_mac_addr(struct net_device *dev, void *p);
541 
542 /* NAPI poll Tx part */
543 int bnx2x_tx_int(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata);
544 
545 /* suspend/resume callbacks */
546 int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state);
547 int bnx2x_resume(struct pci_dev *pdev);
548 
549 /* Release IRQ vectors */
550 void bnx2x_free_irq(struct bnx2x *bp);
551 
552 void bnx2x_free_fp_mem(struct bnx2x *bp);
553 void bnx2x_init_rx_rings(struct bnx2x *bp);
554 void bnx2x_init_rx_rings_cnic(struct bnx2x *bp);
555 void bnx2x_free_skbs(struct bnx2x *bp);
556 void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw);
557 void bnx2x_netif_start(struct bnx2x *bp);
558 int bnx2x_load_cnic(struct bnx2x *bp);
559 
560 /**
561  * bnx2x_enable_msix - set msix configuration.
562  *
563  * @bp:		driver handle
564  *
565  * fills msix_table, requests vectors, updates num_queues
566  * according to number of available vectors.
567  */
568 int bnx2x_enable_msix(struct bnx2x *bp);
569 
570 /**
571  * bnx2x_enable_msi - request msi mode from OS, updated internals accordingly
572  *
573  * @bp:		driver handle
574  */
575 int bnx2x_enable_msi(struct bnx2x *bp);
576 
577 /**
578  * bnx2x_alloc_mem_bp - allocate memories outsize main driver structure
579  *
580  * @bp:		driver handle
581  */
582 int bnx2x_alloc_mem_bp(struct bnx2x *bp);
583 
584 /**
585  * bnx2x_free_mem_bp - release memories outsize main driver structure
586  *
587  * @bp:		driver handle
588  */
589 void bnx2x_free_mem_bp(struct bnx2x *bp);
590 
591 /**
592  * bnx2x_change_mtu - change mtu netdev callback
593  *
594  * @dev:	net device
595  * @new_mtu:	requested mtu
596  *
597  */
598 int bnx2x_change_mtu(struct net_device *dev, int new_mtu);
599 
600 #ifdef NETDEV_FCOE_WWNN
601 /**
602  * bnx2x_fcoe_get_wwn - return the requested WWN value for this port
603  *
604  * @dev:	net_device
605  * @wwn:	output buffer
606  * @type:	WWN type: NETDEV_FCOE_WWNN (node) or NETDEV_FCOE_WWPN (port)
607  *
608  */
609 int bnx2x_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type);
610 #endif
611 
612 netdev_features_t bnx2x_fix_features(struct net_device *dev,
613 				     netdev_features_t features);
614 int bnx2x_set_features(struct net_device *dev, netdev_features_t features);
615 
616 /**
617  * bnx2x_tx_timeout - tx timeout netdev callback
618  *
619  * @dev:	net device
620  */
621 void bnx2x_tx_timeout(struct net_device *dev);
622 
623 /** bnx2x_get_c2s_mapping - read inner-to-outer vlan configuration
624  * c2s_map should have BNX2X_MAX_PRIORITY entries.
625  * @bp:			driver handle
626  * @c2s_map:		should have BNX2X_MAX_PRIORITY entries for mapping
627  * @c2s_default:	entry for non-tagged configuration
628  */
629 void bnx2x_get_c2s_mapping(struct bnx2x *bp, u8 *c2s_map, u8 *c2s_default);
630 
631 /*********************** Inlines **********************************/
632 /*********************** Fast path ********************************/
633 static inline void bnx2x_update_fpsb_idx(struct bnx2x_fastpath *fp)
634 {
635 	barrier(); /* status block is written to by the chip */
636 	fp->fp_hc_idx = fp->sb_running_index[SM_RX_ID];
637 }
638 
639 static inline void bnx2x_igu_ack_sb_gen(struct bnx2x *bp, u8 igu_sb_id,
640 					u8 segment, u16 index, u8 op,
641 					u8 update, u32 igu_addr)
642 {
643 	struct igu_regular cmd_data = {0};
644 
645 	cmd_data.sb_id_and_flags =
646 			((index << IGU_REGULAR_SB_INDEX_SHIFT) |
647 			 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
648 			 (update << IGU_REGULAR_BUPDATE_SHIFT) |
649 			 (op << IGU_REGULAR_ENABLE_INT_SHIFT));
650 
651 	DP(NETIF_MSG_INTR, "write 0x%08x to IGU addr 0x%x\n",
652 	   cmd_data.sb_id_and_flags, igu_addr);
653 	REG_WR(bp, igu_addr, cmd_data.sb_id_and_flags);
654 
655 	/* Make sure that ACK is written */
656 	mmiowb();
657 	barrier();
658 }
659 
660 static inline void bnx2x_hc_ack_sb(struct bnx2x *bp, u8 sb_id,
661 				   u8 storm, u16 index, u8 op, u8 update)
662 {
663 	u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 +
664 		       COMMAND_REG_INT_ACK);
665 	struct igu_ack_register igu_ack;
666 
667 	igu_ack.status_block_index = index;
668 	igu_ack.sb_id_and_flags =
669 			((sb_id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) |
670 			 (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) |
671 			 (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) |
672 			 (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT));
673 
674 	REG_WR(bp, hc_addr, (*(u32 *)&igu_ack));
675 
676 	/* Make sure that ACK is written */
677 	mmiowb();
678 	barrier();
679 }
680 
681 static inline void bnx2x_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 storm,
682 				u16 index, u8 op, u8 update)
683 {
684 	if (bp->common.int_block == INT_BLOCK_HC)
685 		bnx2x_hc_ack_sb(bp, igu_sb_id, storm, index, op, update);
686 	else {
687 		u8 segment;
688 
689 		if (CHIP_INT_MODE_IS_BC(bp))
690 			segment = storm;
691 		else if (igu_sb_id != bp->igu_dsb_id)
692 			segment = IGU_SEG_ACCESS_DEF;
693 		else if (storm == ATTENTION_ID)
694 			segment = IGU_SEG_ACCESS_ATTN;
695 		else
696 			segment = IGU_SEG_ACCESS_DEF;
697 		bnx2x_igu_ack_sb(bp, igu_sb_id, segment, index, op, update);
698 	}
699 }
700 
701 static inline u16 bnx2x_hc_ack_int(struct bnx2x *bp)
702 {
703 	u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 +
704 		       COMMAND_REG_SIMD_MASK);
705 	u32 result = REG_RD(bp, hc_addr);
706 
707 	barrier();
708 	return result;
709 }
710 
711 static inline u16 bnx2x_igu_ack_int(struct bnx2x *bp)
712 {
713 	u32 igu_addr = (BAR_IGU_INTMEM + IGU_REG_SISR_MDPC_WMASK_LSB_UPPER*8);
714 	u32 result = REG_RD(bp, igu_addr);
715 
716 	DP(NETIF_MSG_INTR, "read 0x%08x from IGU addr 0x%x\n",
717 	   result, igu_addr);
718 
719 	barrier();
720 	return result;
721 }
722 
723 static inline u16 bnx2x_ack_int(struct bnx2x *bp)
724 {
725 	barrier();
726 	if (bp->common.int_block == INT_BLOCK_HC)
727 		return bnx2x_hc_ack_int(bp);
728 	else
729 		return bnx2x_igu_ack_int(bp);
730 }
731 
732 static inline int bnx2x_has_tx_work_unload(struct bnx2x_fp_txdata *txdata)
733 {
734 	/* Tell compiler that consumer and producer can change */
735 	barrier();
736 	return txdata->tx_pkt_prod != txdata->tx_pkt_cons;
737 }
738 
739 static inline u16 bnx2x_tx_avail(struct bnx2x *bp,
740 				 struct bnx2x_fp_txdata *txdata)
741 {
742 	s16 used;
743 	u16 prod;
744 	u16 cons;
745 
746 	prod = txdata->tx_bd_prod;
747 	cons = txdata->tx_bd_cons;
748 
749 	used = SUB_S16(prod, cons);
750 
751 #ifdef BNX2X_STOP_ON_ERROR
752 	WARN_ON(used < 0);
753 	WARN_ON(used > txdata->tx_ring_size);
754 	WARN_ON((txdata->tx_ring_size - used) > MAX_TX_AVAIL);
755 #endif
756 
757 	return (s16)(txdata->tx_ring_size) - used;
758 }
759 
760 static inline int bnx2x_tx_queue_has_work(struct bnx2x_fp_txdata *txdata)
761 {
762 	u16 hw_cons;
763 
764 	/* Tell compiler that status block fields can change */
765 	barrier();
766 	hw_cons = le16_to_cpu(*txdata->tx_cons_sb);
767 	return hw_cons != txdata->tx_pkt_cons;
768 }
769 
770 static inline bool bnx2x_has_tx_work(struct bnx2x_fastpath *fp)
771 {
772 	u8 cos;
773 	for_each_cos_in_tx_queue(fp, cos)
774 		if (bnx2x_tx_queue_has_work(fp->txdata_ptr[cos]))
775 			return true;
776 	return false;
777 }
778 
779 #define BNX2X_IS_CQE_COMPLETED(cqe_fp) (cqe_fp->marker == 0x0)
780 #define BNX2X_SEED_CQE(cqe_fp) (cqe_fp->marker = 0xFFFFFFFF)
781 static inline int bnx2x_has_rx_work(struct bnx2x_fastpath *fp)
782 {
783 	u16 cons;
784 	union eth_rx_cqe *cqe;
785 	struct eth_fast_path_rx_cqe *cqe_fp;
786 
787 	cons = RCQ_BD(fp->rx_comp_cons);
788 	cqe = &fp->rx_comp_ring[cons];
789 	cqe_fp = &cqe->fast_path_cqe;
790 	return BNX2X_IS_CQE_COMPLETED(cqe_fp);
791 }
792 
793 /**
794  * bnx2x_tx_disable - disables tx from stack point of view
795  *
796  * @bp:		driver handle
797  */
798 static inline void bnx2x_tx_disable(struct bnx2x *bp)
799 {
800 	netif_tx_disable(bp->dev);
801 	netif_carrier_off(bp->dev);
802 }
803 
804 static inline void bnx2x_free_rx_sge(struct bnx2x *bp,
805 				     struct bnx2x_fastpath *fp, u16 index)
806 {
807 	struct sw_rx_page *sw_buf = &fp->rx_page_ring[index];
808 	struct page *page = sw_buf->page;
809 	struct eth_rx_sge *sge = &fp->rx_sge_ring[index];
810 
811 	/* Skip "next page" elements */
812 	if (!page)
813 		return;
814 
815 	/* Since many fragments can share the same page, make sure to
816 	 * only unmap and free the page once.
817 	 */
818 	dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(sw_buf, mapping),
819 		       SGE_PAGE_SIZE, DMA_FROM_DEVICE);
820 
821 	put_page(page);
822 
823 	sw_buf->page = NULL;
824 	sge->addr_hi = 0;
825 	sge->addr_lo = 0;
826 }
827 
828 static inline void bnx2x_del_all_napi_cnic(struct bnx2x *bp)
829 {
830 	int i;
831 
832 	for_each_rx_queue_cnic(bp, i) {
833 		napi_hash_del(&bnx2x_fp(bp, i, napi));
834 		netif_napi_del(&bnx2x_fp(bp, i, napi));
835 	}
836 }
837 
838 static inline void bnx2x_del_all_napi(struct bnx2x *bp)
839 {
840 	int i;
841 
842 	for_each_eth_queue(bp, i) {
843 		napi_hash_del(&bnx2x_fp(bp, i, napi));
844 		netif_napi_del(&bnx2x_fp(bp, i, napi));
845 	}
846 }
847 
848 int bnx2x_set_int_mode(struct bnx2x *bp);
849 
850 static inline void bnx2x_disable_msi(struct bnx2x *bp)
851 {
852 	if (bp->flags & USING_MSIX_FLAG) {
853 		pci_disable_msix(bp->pdev);
854 		bp->flags &= ~(USING_MSIX_FLAG | USING_SINGLE_MSIX_FLAG);
855 	} else if (bp->flags & USING_MSI_FLAG) {
856 		pci_disable_msi(bp->pdev);
857 		bp->flags &= ~USING_MSI_FLAG;
858 	}
859 }
860 
861 static inline void bnx2x_clear_sge_mask_next_elems(struct bnx2x_fastpath *fp)
862 {
863 	int i, j;
864 
865 	for (i = 1; i <= NUM_RX_SGE_PAGES; i++) {
866 		int idx = RX_SGE_CNT * i - 1;
867 
868 		for (j = 0; j < 2; j++) {
869 			BIT_VEC64_CLEAR_BIT(fp->sge_mask, idx);
870 			idx--;
871 		}
872 	}
873 }
874 
875 static inline void bnx2x_init_sge_ring_bit_mask(struct bnx2x_fastpath *fp)
876 {
877 	/* Set the mask to all 1-s: it's faster to compare to 0 than to 0xf-s */
878 	memset(fp->sge_mask, 0xff, sizeof(fp->sge_mask));
879 
880 	/* Clear the two last indices in the page to 1:
881 	   these are the indices that correspond to the "next" element,
882 	   hence will never be indicated and should be removed from
883 	   the calculations. */
884 	bnx2x_clear_sge_mask_next_elems(fp);
885 }
886 
887 /* note that we are not allocating a new buffer,
888  * we are just moving one from cons to prod
889  * we are not creating a new mapping,
890  * so there is no need to check for dma_mapping_error().
891  */
892 static inline void bnx2x_reuse_rx_data(struct bnx2x_fastpath *fp,
893 				      u16 cons, u16 prod)
894 {
895 	struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons];
896 	struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod];
897 	struct eth_rx_bd *cons_bd = &fp->rx_desc_ring[cons];
898 	struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod];
899 
900 	dma_unmap_addr_set(prod_rx_buf, mapping,
901 			   dma_unmap_addr(cons_rx_buf, mapping));
902 	prod_rx_buf->data = cons_rx_buf->data;
903 	*prod_bd = *cons_bd;
904 }
905 
906 /************************* Init ******************************************/
907 
908 /* returns func by VN for current port */
909 static inline int func_by_vn(struct bnx2x *bp, int vn)
910 {
911 	return 2 * vn + BP_PORT(bp);
912 }
913 
914 static inline int bnx2x_config_rss_eth(struct bnx2x *bp, bool config_hash)
915 {
916 	return bnx2x_rss(bp, &bp->rss_conf_obj, config_hash, true);
917 }
918 
919 /**
920  * bnx2x_func_start - init function
921  *
922  * @bp:		driver handle
923  *
924  * Must be called before sending CLIENT_SETUP for the first client.
925  */
926 static inline int bnx2x_func_start(struct bnx2x *bp)
927 {
928 	struct bnx2x_func_state_params func_params = {NULL};
929 	struct bnx2x_func_start_params *start_params =
930 		&func_params.params.start;
931 	u16 port;
932 
933 	/* Prepare parameters for function state transitions */
934 	__set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
935 
936 	func_params.f_obj = &bp->func_obj;
937 	func_params.cmd = BNX2X_F_CMD_START;
938 
939 	/* Function parameters */
940 	start_params->mf_mode = bp->mf_mode;
941 	start_params->sd_vlan_tag = bp->mf_ov;
942 
943 	/* Configure Ethertype for BD mode */
944 	if (IS_MF_BD(bp)) {
945 		DP(NETIF_MSG_IFUP, "Configuring ethertype 0x88a8 for BD\n");
946 		start_params->sd_vlan_eth_type = ETH_P_8021AD;
947 		REG_WR(bp, PRS_REG_VLAN_TYPE_0, ETH_P_8021AD);
948 		REG_WR(bp, PBF_REG_VLAN_TYPE_0, ETH_P_8021AD);
949 		REG_WR(bp, NIG_REG_LLH_E1HOV_TYPE_1, ETH_P_8021AD);
950 
951 		bnx2x_get_c2s_mapping(bp, start_params->c2s_pri,
952 				      &start_params->c2s_pri_default);
953 		start_params->c2s_pri_valid = 1;
954 
955 		DP(NETIF_MSG_IFUP,
956 		   "Inner-to-Outer priority: %02x %02x %02x %02x %02x %02x %02x %02x [Default %02x]\n",
957 		   start_params->c2s_pri[0], start_params->c2s_pri[1],
958 		   start_params->c2s_pri[2], start_params->c2s_pri[3],
959 		   start_params->c2s_pri[4], start_params->c2s_pri[5],
960 		   start_params->c2s_pri[6], start_params->c2s_pri[7],
961 		   start_params->c2s_pri_default);
962 	}
963 
964 	if (CHIP_IS_E2(bp) || CHIP_IS_E3(bp))
965 		start_params->network_cos_mode = STATIC_COS;
966 	else /* CHIP_IS_E1X */
967 		start_params->network_cos_mode = FW_WRR;
968 	if (bp->udp_tunnel_ports[BNX2X_UDP_PORT_VXLAN].count) {
969 		port = bp->udp_tunnel_ports[BNX2X_UDP_PORT_VXLAN].dst_port;
970 		start_params->vxlan_dst_port = port;
971 	}
972 	if (bp->udp_tunnel_ports[BNX2X_UDP_PORT_GENEVE].count) {
973 		port = bp->udp_tunnel_ports[BNX2X_UDP_PORT_GENEVE].dst_port;
974 		start_params->geneve_dst_port = port;
975 	}
976 
977 	start_params->inner_rss = 1;
978 
979 	if (IS_MF_UFP(bp) && BNX2X_IS_MF_SD_PROTOCOL_FCOE(bp)) {
980 		start_params->class_fail_ethtype = ETH_P_FIP;
981 		start_params->class_fail = 1;
982 		start_params->no_added_tags = 1;
983 	}
984 
985 	return bnx2x_func_state_change(bp, &func_params);
986 }
987 
988 /**
989  * bnx2x_set_fw_mac_addr - fill in a MAC address in FW format
990  *
991  * @fw_hi:	pointer to upper part
992  * @fw_mid:	pointer to middle part
993  * @fw_lo:	pointer to lower part
994  * @mac:	pointer to MAC address
995  */
996 static inline void bnx2x_set_fw_mac_addr(__le16 *fw_hi, __le16 *fw_mid,
997 					 __le16 *fw_lo, u8 *mac)
998 {
999 	((u8 *)fw_hi)[0]  = mac[1];
1000 	((u8 *)fw_hi)[1]  = mac[0];
1001 	((u8 *)fw_mid)[0] = mac[3];
1002 	((u8 *)fw_mid)[1] = mac[2];
1003 	((u8 *)fw_lo)[0]  = mac[5];
1004 	((u8 *)fw_lo)[1]  = mac[4];
1005 }
1006 
1007 static inline void bnx2x_free_rx_mem_pool(struct bnx2x *bp,
1008 					  struct bnx2x_alloc_pool *pool)
1009 {
1010 	if (!pool->page)
1011 		return;
1012 
1013 	put_page(pool->page);
1014 
1015 	pool->page = NULL;
1016 }
1017 
1018 static inline void bnx2x_free_rx_sge_range(struct bnx2x *bp,
1019 					   struct bnx2x_fastpath *fp, int last)
1020 {
1021 	int i;
1022 
1023 	if (fp->mode == TPA_MODE_DISABLED)
1024 		return;
1025 
1026 	for (i = 0; i < last; i++)
1027 		bnx2x_free_rx_sge(bp, fp, i);
1028 
1029 	bnx2x_free_rx_mem_pool(bp, &fp->page_pool);
1030 }
1031 
1032 static inline void bnx2x_set_next_page_rx_bd(struct bnx2x_fastpath *fp)
1033 {
1034 	int i;
1035 
1036 	for (i = 1; i <= NUM_RX_RINGS; i++) {
1037 		struct eth_rx_bd *rx_bd;
1038 
1039 		rx_bd = &fp->rx_desc_ring[RX_DESC_CNT * i - 2];
1040 		rx_bd->addr_hi =
1041 			cpu_to_le32(U64_HI(fp->rx_desc_mapping +
1042 				    BCM_PAGE_SIZE*(i % NUM_RX_RINGS)));
1043 		rx_bd->addr_lo =
1044 			cpu_to_le32(U64_LO(fp->rx_desc_mapping +
1045 				    BCM_PAGE_SIZE*(i % NUM_RX_RINGS)));
1046 	}
1047 }
1048 
1049 /* Statistics ID are global per chip/path, while Client IDs for E1x are per
1050  * port.
1051  */
1052 static inline u8 bnx2x_stats_id(struct bnx2x_fastpath *fp)
1053 {
1054 	struct bnx2x *bp = fp->bp;
1055 	if (!CHIP_IS_E1x(bp)) {
1056 		/* there are special statistics counters for FCoE 136..140 */
1057 		if (IS_FCOE_FP(fp))
1058 			return bp->cnic_base_cl_id + (bp->pf_num >> 1);
1059 		return fp->cl_id;
1060 	}
1061 	return fp->cl_id + BP_PORT(bp) * FP_SB_MAX_E1x;
1062 }
1063 
1064 static inline void bnx2x_init_vlan_mac_fp_objs(struct bnx2x_fastpath *fp,
1065 					       bnx2x_obj_type obj_type)
1066 {
1067 	struct bnx2x *bp = fp->bp;
1068 
1069 	/* Configure classification DBs */
1070 	bnx2x_init_mac_obj(bp, &bnx2x_sp_obj(bp, fp).mac_obj, fp->cl_id,
1071 			   fp->cid, BP_FUNC(bp), bnx2x_sp(bp, mac_rdata),
1072 			   bnx2x_sp_mapping(bp, mac_rdata),
1073 			   BNX2X_FILTER_MAC_PENDING,
1074 			   &bp->sp_state, obj_type,
1075 			   &bp->macs_pool);
1076 
1077 	if (!CHIP_IS_E1x(bp))
1078 		bnx2x_init_vlan_obj(bp, &bnx2x_sp_obj(bp, fp).vlan_obj,
1079 				    fp->cl_id, fp->cid, BP_FUNC(bp),
1080 				    bnx2x_sp(bp, vlan_rdata),
1081 				    bnx2x_sp_mapping(bp, vlan_rdata),
1082 				    BNX2X_FILTER_VLAN_PENDING,
1083 				    &bp->sp_state, obj_type,
1084 				    &bp->vlans_pool);
1085 }
1086 
1087 /**
1088  * bnx2x_get_path_func_num - get number of active functions
1089  *
1090  * @bp:		driver handle
1091  *
1092  * Calculates the number of active (not hidden) functions on the
1093  * current path.
1094  */
1095 static inline u8 bnx2x_get_path_func_num(struct bnx2x *bp)
1096 {
1097 	u8 func_num = 0, i;
1098 
1099 	/* 57710 has only one function per-port */
1100 	if (CHIP_IS_E1(bp))
1101 		return 1;
1102 
1103 	/* Calculate a number of functions enabled on the current
1104 	 * PATH/PORT.
1105 	 */
1106 	if (CHIP_REV_IS_SLOW(bp)) {
1107 		if (IS_MF(bp))
1108 			func_num = 4;
1109 		else
1110 			func_num = 2;
1111 	} else {
1112 		for (i = 0; i < E1H_FUNC_MAX / 2; i++) {
1113 			u32 func_config =
1114 				MF_CFG_RD(bp,
1115 					  func_mf_config[BP_PORT(bp) + 2 * i].
1116 					  config);
1117 			func_num +=
1118 				((func_config & FUNC_MF_CFG_FUNC_HIDE) ? 0 : 1);
1119 		}
1120 	}
1121 
1122 	WARN_ON(!func_num);
1123 
1124 	return func_num;
1125 }
1126 
1127 static inline void bnx2x_init_bp_objs(struct bnx2x *bp)
1128 {
1129 	/* RX_MODE controlling object */
1130 	bnx2x_init_rx_mode_obj(bp, &bp->rx_mode_obj);
1131 
1132 	/* multicast configuration controlling object */
1133 	bnx2x_init_mcast_obj(bp, &bp->mcast_obj, bp->fp->cl_id, bp->fp->cid,
1134 			     BP_FUNC(bp), BP_FUNC(bp),
1135 			     bnx2x_sp(bp, mcast_rdata),
1136 			     bnx2x_sp_mapping(bp, mcast_rdata),
1137 			     BNX2X_FILTER_MCAST_PENDING, &bp->sp_state,
1138 			     BNX2X_OBJ_TYPE_RX);
1139 
1140 	/* Setup CAM credit pools */
1141 	bnx2x_init_mac_credit_pool(bp, &bp->macs_pool, BP_FUNC(bp),
1142 				   bnx2x_get_path_func_num(bp));
1143 
1144 	bnx2x_init_vlan_credit_pool(bp, &bp->vlans_pool, BP_FUNC(bp),
1145 				    bnx2x_get_path_func_num(bp));
1146 
1147 	/* RSS configuration object */
1148 	bnx2x_init_rss_config_obj(bp, &bp->rss_conf_obj, bp->fp->cl_id,
1149 				  bp->fp->cid, BP_FUNC(bp), BP_FUNC(bp),
1150 				  bnx2x_sp(bp, rss_rdata),
1151 				  bnx2x_sp_mapping(bp, rss_rdata),
1152 				  BNX2X_FILTER_RSS_CONF_PENDING, &bp->sp_state,
1153 				  BNX2X_OBJ_TYPE_RX);
1154 
1155 	bp->vlan_credit = PF_VLAN_CREDIT_E2(bp, bnx2x_get_path_func_num(bp));
1156 }
1157 
1158 static inline u8 bnx2x_fp_qzone_id(struct bnx2x_fastpath *fp)
1159 {
1160 	if (CHIP_IS_E1x(fp->bp))
1161 		return fp->cl_id + BP_PORT(fp->bp) * ETH_MAX_RX_CLIENTS_E1H;
1162 	else
1163 		return fp->cl_id;
1164 }
1165 
1166 static inline void bnx2x_init_txdata(struct bnx2x *bp,
1167 				     struct bnx2x_fp_txdata *txdata, u32 cid,
1168 				     int txq_index, __le16 *tx_cons_sb,
1169 				     struct bnx2x_fastpath *fp)
1170 {
1171 	txdata->cid = cid;
1172 	txdata->txq_index = txq_index;
1173 	txdata->tx_cons_sb = tx_cons_sb;
1174 	txdata->parent_fp = fp;
1175 	txdata->tx_ring_size = IS_FCOE_FP(fp) ? MAX_TX_AVAIL : bp->tx_ring_size;
1176 
1177 	DP(NETIF_MSG_IFUP, "created tx data cid %d, txq %d\n",
1178 	   txdata->cid, txdata->txq_index);
1179 }
1180 
1181 static inline u8 bnx2x_cnic_eth_cl_id(struct bnx2x *bp, u8 cl_idx)
1182 {
1183 	return bp->cnic_base_cl_id + cl_idx +
1184 		(bp->pf_num >> 1) * BNX2X_MAX_CNIC_ETH_CL_ID_IDX;
1185 }
1186 
1187 static inline u8 bnx2x_cnic_fw_sb_id(struct bnx2x *bp)
1188 {
1189 	/* the 'first' id is allocated for the cnic */
1190 	return bp->base_fw_ndsb;
1191 }
1192 
1193 static inline u8 bnx2x_cnic_igu_sb_id(struct bnx2x *bp)
1194 {
1195 	return bp->igu_base_sb;
1196 }
1197 
1198 static inline int bnx2x_clean_tx_queue(struct bnx2x *bp,
1199 				       struct bnx2x_fp_txdata *txdata)
1200 {
1201 	int cnt = 1000;
1202 
1203 	while (bnx2x_has_tx_work_unload(txdata)) {
1204 		if (!cnt) {
1205 			BNX2X_ERR("timeout waiting for queue[%d]: txdata->tx_pkt_prod(%d) != txdata->tx_pkt_cons(%d)\n",
1206 				  txdata->txq_index, txdata->tx_pkt_prod,
1207 				  txdata->tx_pkt_cons);
1208 #ifdef BNX2X_STOP_ON_ERROR
1209 			bnx2x_panic();
1210 			return -EBUSY;
1211 #else
1212 			break;
1213 #endif
1214 		}
1215 		cnt--;
1216 		usleep_range(1000, 2000);
1217 	}
1218 
1219 	return 0;
1220 }
1221 
1222 int bnx2x_get_link_cfg_idx(struct bnx2x *bp);
1223 
1224 static inline void __storm_memset_struct(struct bnx2x *bp,
1225 					 u32 addr, size_t size, u32 *data)
1226 {
1227 	int i;
1228 	for (i = 0; i < size/4; i++)
1229 		REG_WR(bp, addr + (i * 4), data[i]);
1230 }
1231 
1232 /**
1233  * bnx2x_wait_sp_comp - wait for the outstanding SP commands.
1234  *
1235  * @bp:		driver handle
1236  * @mask:	bits that need to be cleared
1237  */
1238 static inline bool bnx2x_wait_sp_comp(struct bnx2x *bp, unsigned long mask)
1239 {
1240 	int tout = 5000; /* Wait for 5 secs tops */
1241 
1242 	while (tout--) {
1243 		smp_mb();
1244 		netif_addr_lock_bh(bp->dev);
1245 		if (!(bp->sp_state & mask)) {
1246 			netif_addr_unlock_bh(bp->dev);
1247 			return true;
1248 		}
1249 		netif_addr_unlock_bh(bp->dev);
1250 
1251 		usleep_range(1000, 2000);
1252 	}
1253 
1254 	smp_mb();
1255 
1256 	netif_addr_lock_bh(bp->dev);
1257 	if (bp->sp_state & mask) {
1258 		BNX2X_ERR("Filtering completion timed out. sp_state 0x%lx, mask 0x%lx\n",
1259 			  bp->sp_state, mask);
1260 		netif_addr_unlock_bh(bp->dev);
1261 		return false;
1262 	}
1263 	netif_addr_unlock_bh(bp->dev);
1264 
1265 	return true;
1266 }
1267 
1268 /**
1269  * bnx2x_set_ctx_validation - set CDU context validation values
1270  *
1271  * @bp:		driver handle
1272  * @cxt:	context of the connection on the host memory
1273  * @cid:	SW CID of the connection to be configured
1274  */
1275 void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt,
1276 			      u32 cid);
1277 
1278 void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id,
1279 				    u8 sb_index, u8 disable, u16 usec);
1280 void bnx2x_acquire_phy_lock(struct bnx2x *bp);
1281 void bnx2x_release_phy_lock(struct bnx2x *bp);
1282 
1283 /**
1284  * bnx2x_extract_max_cfg - extract MAX BW part from MF configuration.
1285  *
1286  * @bp:		driver handle
1287  * @mf_cfg:	MF configuration
1288  *
1289  */
1290 static inline u16 bnx2x_extract_max_cfg(struct bnx2x *bp, u32 mf_cfg)
1291 {
1292 	u16 max_cfg = (mf_cfg & FUNC_MF_CFG_MAX_BW_MASK) >>
1293 			      FUNC_MF_CFG_MAX_BW_SHIFT;
1294 	if (!max_cfg) {
1295 		DP(NETIF_MSG_IFUP | BNX2X_MSG_ETHTOOL,
1296 		   "Max BW configured to 0 - using 100 instead\n");
1297 		max_cfg = 100;
1298 	}
1299 	return max_cfg;
1300 }
1301 
1302 /* checks if HW supports GRO for given MTU */
1303 static inline bool bnx2x_mtu_allows_gro(int mtu)
1304 {
1305 	/* gro frags per page */
1306 	int fpp = SGE_PAGE_SIZE / (mtu - ETH_MAX_TPA_HEADER_SIZE);
1307 
1308 	/*
1309 	 * 1. Number of frags should not grow above MAX_SKB_FRAGS
1310 	 * 2. Frag must fit the page
1311 	 */
1312 	return mtu <= SGE_PAGE_SIZE && (U_ETH_SGL_SIZE * fpp) <= MAX_SKB_FRAGS;
1313 }
1314 
1315 /**
1316  * bnx2x_get_iscsi_info - update iSCSI params according to licensing info.
1317  *
1318  * @bp:		driver handle
1319  *
1320  */
1321 void bnx2x_get_iscsi_info(struct bnx2x *bp);
1322 
1323 /**
1324  * bnx2x_link_sync_notify - send notification to other functions.
1325  *
1326  * @bp:		driver handle
1327  *
1328  */
1329 static inline void bnx2x_link_sync_notify(struct bnx2x *bp)
1330 {
1331 	int func;
1332 	int vn;
1333 
1334 	/* Set the attention towards other drivers on the same port */
1335 	for (vn = VN_0; vn < BP_MAX_VN_NUM(bp); vn++) {
1336 		if (vn == BP_VN(bp))
1337 			continue;
1338 
1339 		func = func_by_vn(bp, vn);
1340 		REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_0 +
1341 		       (LINK_SYNC_ATTENTION_BIT_FUNC_0 + func)*4, 1);
1342 	}
1343 }
1344 
1345 /**
1346  * bnx2x_update_drv_flags - update flags in shmem
1347  *
1348  * @bp:		driver handle
1349  * @flags:	flags to update
1350  * @set:	set or clear
1351  *
1352  */
1353 static inline void bnx2x_update_drv_flags(struct bnx2x *bp, u32 flags, u32 set)
1354 {
1355 	if (SHMEM2_HAS(bp, drv_flags)) {
1356 		u32 drv_flags;
1357 		bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_DRV_FLAGS);
1358 		drv_flags = SHMEM2_RD(bp, drv_flags);
1359 
1360 		if (set)
1361 			SET_FLAGS(drv_flags, flags);
1362 		else
1363 			RESET_FLAGS(drv_flags, flags);
1364 
1365 		SHMEM2_WR(bp, drv_flags, drv_flags);
1366 		DP(NETIF_MSG_IFUP, "drv_flags 0x%08x\n", drv_flags);
1367 		bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_DRV_FLAGS);
1368 	}
1369 }
1370 
1371 
1372 
1373 /**
1374  * bnx2x_fill_fw_str - Fill buffer with FW version string
1375  *
1376  * @bp:        driver handle
1377  * @buf:       character buffer to fill with the fw name
1378  * @buf_len:   length of the above buffer
1379  *
1380  */
1381 void bnx2x_fill_fw_str(struct bnx2x *bp, char *buf, size_t buf_len);
1382 
1383 int bnx2x_drain_tx_queues(struct bnx2x *bp);
1384 void bnx2x_squeeze_objects(struct bnx2x *bp);
1385 
1386 void bnx2x_schedule_sp_rtnl(struct bnx2x*, enum sp_rtnl_flag,
1387 			    u32 verbose);
1388 
1389 /**
1390  * bnx2x_set_os_driver_state - write driver state for management FW usage
1391  *
1392  * @bp:		driver handle
1393  * @state:	OS_DRIVER_STATE_* value reflecting current driver state
1394  */
1395 void bnx2x_set_os_driver_state(struct bnx2x *bp, u32 state);
1396 
1397 /**
1398  * bnx2x_nvram_read - reads data from nvram [might sleep]
1399  *
1400  * @bp:		driver handle
1401  * @offset:	byte offset in nvram
1402  * @ret_buf:	pointer to buffer where data is to be stored
1403  * @buf_size:   Length of 'ret_buf' in bytes
1404  */
1405 int bnx2x_nvram_read(struct bnx2x *bp, u32 offset, u8 *ret_buf,
1406 		     int buf_size);
1407 
1408 #endif /* BNX2X_CMN_H */
1409