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 void bnx2x_clear_vlan_info(struct bnx2x *bp);
429 
430 /**
431  * bnx2x_sp_event - handle ramrods completion.
432  *
433  * @fp:		fastpath handle for the event
434  * @rr_cqe:	eth_rx_cqe
435  */
436 void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe);
437 
438 /**
439  * bnx2x_ilt_set_info - prepare ILT configurations.
440  *
441  * @bp:		driver handle
442  */
443 void bnx2x_ilt_set_info(struct bnx2x *bp);
444 
445 /**
446  * bnx2x_ilt_set_cnic_info - prepare ILT configurations for SRC
447  * and TM.
448  *
449  * @bp:		driver handle
450  */
451 void bnx2x_ilt_set_info_cnic(struct bnx2x *bp);
452 
453 /**
454  * bnx2x_dcbx_init - initialize dcbx protocol.
455  *
456  * @bp:		driver handle
457  */
458 void bnx2x_dcbx_init(struct bnx2x *bp, bool update_shmem);
459 
460 /**
461  * bnx2x_set_power_state - set power state to the requested value.
462  *
463  * @bp:		driver handle
464  * @state:	required state D0 or D3hot
465  *
466  * Currently only D0 and D3hot are supported.
467  */
468 int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state);
469 
470 /**
471  * bnx2x_update_max_mf_config - update MAX part of MF configuration in HW.
472  *
473  * @bp:		driver handle
474  * @value:	new value
475  */
476 void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value);
477 /* Error handling */
478 void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl);
479 
480 /* dev_close main block */
481 int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link);
482 
483 /* dev_open main block */
484 int bnx2x_nic_load(struct bnx2x *bp, int load_mode);
485 
486 /* hard_xmit callback */
487 netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev);
488 
489 /* setup_tc callback */
490 int bnx2x_setup_tc(struct net_device *dev, u8 num_tc);
491 int __bnx2x_setup_tc(struct net_device *dev, enum tc_setup_type type,
492 		     void *type_data);
493 
494 int bnx2x_get_vf_config(struct net_device *dev, int vf,
495 			struct ifla_vf_info *ivi);
496 int bnx2x_set_vf_mac(struct net_device *dev, int queue, u8 *mac);
497 int bnx2x_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos,
498 		      __be16 vlan_proto);
499 int bnx2x_set_vf_spoofchk(struct net_device *dev, int idx, bool val);
500 
501 /* select_queue callback */
502 u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb,
503 		       struct net_device *sb_dev);
504 
505 static inline void bnx2x_update_rx_prod(struct bnx2x *bp,
506 					struct bnx2x_fastpath *fp,
507 					u16 bd_prod, u16 rx_comp_prod,
508 					u16 rx_sge_prod)
509 {
510 	struct ustorm_eth_rx_producers rx_prods = {0};
511 	u32 i;
512 
513 	/* Update producers */
514 	rx_prods.bd_prod = bd_prod;
515 	rx_prods.cqe_prod = rx_comp_prod;
516 	rx_prods.sge_prod = rx_sge_prod;
517 
518 	/* Make sure that the BD and SGE data is updated before updating the
519 	 * producers since FW might read the BD/SGE right after the producer
520 	 * is updated.
521 	 * This is only applicable for weak-ordered memory model archs such
522 	 * as IA-64. The following barrier is also mandatory since FW will
523 	 * assumes BDs must have buffers.
524 	 */
525 	wmb();
526 
527 	for (i = 0; i < sizeof(rx_prods)/4; i++)
528 		REG_WR_RELAXED(bp, fp->ustorm_rx_prods_offset + i * 4,
529 			       ((u32 *)&rx_prods)[i]);
530 
531 	DP(NETIF_MSG_RX_STATUS,
532 	   "queue[%d]:  wrote  bd_prod %u  cqe_prod %u  sge_prod %u\n",
533 	   fp->index, bd_prod, rx_comp_prod, rx_sge_prod);
534 }
535 
536 /* reload helper */
537 int bnx2x_reload_if_running(struct net_device *dev);
538 
539 int bnx2x_change_mac_addr(struct net_device *dev, void *p);
540 
541 /* NAPI poll Tx part */
542 int bnx2x_tx_int(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata);
543 
544 extern const struct dev_pm_ops bnx2x_pm_ops;
545 
546 /* Release IRQ vectors */
547 void bnx2x_free_irq(struct bnx2x *bp);
548 
549 void bnx2x_free_fp_mem(struct bnx2x *bp);
550 void bnx2x_init_rx_rings(struct bnx2x *bp);
551 void bnx2x_init_rx_rings_cnic(struct bnx2x *bp);
552 void bnx2x_free_skbs(struct bnx2x *bp);
553 void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw);
554 void bnx2x_netif_start(struct bnx2x *bp);
555 int bnx2x_load_cnic(struct bnx2x *bp);
556 
557 /**
558  * bnx2x_enable_msix - set msix configuration.
559  *
560  * @bp:		driver handle
561  *
562  * fills msix_table, requests vectors, updates num_queues
563  * according to number of available vectors.
564  */
565 int bnx2x_enable_msix(struct bnx2x *bp);
566 
567 /**
568  * bnx2x_enable_msi - request msi mode from OS, updated internals accordingly
569  *
570  * @bp:		driver handle
571  */
572 int bnx2x_enable_msi(struct bnx2x *bp);
573 
574 /**
575  * bnx2x_alloc_mem_bp - allocate memories outsize main driver structure
576  *
577  * @bp:		driver handle
578  */
579 int bnx2x_alloc_mem_bp(struct bnx2x *bp);
580 
581 /**
582  * bnx2x_free_mem_bp - release memories outsize main driver structure
583  *
584  * @bp:		driver handle
585  */
586 void bnx2x_free_mem_bp(struct bnx2x *bp);
587 
588 /**
589  * bnx2x_change_mtu - change mtu netdev callback
590  *
591  * @dev:	net device
592  * @new_mtu:	requested mtu
593  *
594  */
595 int bnx2x_change_mtu(struct net_device *dev, int new_mtu);
596 
597 #ifdef NETDEV_FCOE_WWNN
598 /**
599  * bnx2x_fcoe_get_wwn - return the requested WWN value for this port
600  *
601  * @dev:	net_device
602  * @wwn:	output buffer
603  * @type:	WWN type: NETDEV_FCOE_WWNN (node) or NETDEV_FCOE_WWPN (port)
604  *
605  */
606 int bnx2x_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type);
607 #endif
608 
609 netdev_features_t bnx2x_fix_features(struct net_device *dev,
610 				     netdev_features_t features);
611 int bnx2x_set_features(struct net_device *dev, netdev_features_t features);
612 
613 /**
614  * bnx2x_tx_timeout - tx timeout netdev callback
615  *
616  * @dev:	net device
617  */
618 void bnx2x_tx_timeout(struct net_device *dev, unsigned int txqueue);
619 
620 /** bnx2x_get_c2s_mapping - read inner-to-outer vlan configuration
621  * c2s_map should have BNX2X_MAX_PRIORITY entries.
622  * @bp:			driver handle
623  * @c2s_map:		should have BNX2X_MAX_PRIORITY entries for mapping
624  * @c2s_default:	entry for non-tagged configuration
625  */
626 void bnx2x_get_c2s_mapping(struct bnx2x *bp, u8 *c2s_map, u8 *c2s_default);
627 
628 /*********************** Inlines **********************************/
629 /*********************** Fast path ********************************/
630 static inline void bnx2x_update_fpsb_idx(struct bnx2x_fastpath *fp)
631 {
632 	barrier(); /* status block is written to by the chip */
633 	fp->fp_hc_idx = fp->sb_running_index[SM_RX_ID];
634 }
635 
636 static inline void bnx2x_igu_ack_sb_gen(struct bnx2x *bp, u8 igu_sb_id,
637 					u8 segment, u16 index, u8 op,
638 					u8 update, u32 igu_addr)
639 {
640 	struct igu_regular cmd_data = {0};
641 
642 	cmd_data.sb_id_and_flags =
643 			((index << IGU_REGULAR_SB_INDEX_SHIFT) |
644 			 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
645 			 (update << IGU_REGULAR_BUPDATE_SHIFT) |
646 			 (op << IGU_REGULAR_ENABLE_INT_SHIFT));
647 
648 	DP(NETIF_MSG_INTR, "write 0x%08x to IGU addr 0x%x\n",
649 	   cmd_data.sb_id_and_flags, igu_addr);
650 	REG_WR(bp, igu_addr, cmd_data.sb_id_and_flags);
651 
652 	/* Make sure that ACK is written */
653 	barrier();
654 }
655 
656 static inline void bnx2x_hc_ack_sb(struct bnx2x *bp, u8 sb_id,
657 				   u8 storm, u16 index, u8 op, u8 update)
658 {
659 	u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 +
660 		       COMMAND_REG_INT_ACK);
661 	struct igu_ack_register igu_ack;
662 
663 	igu_ack.status_block_index = index;
664 	igu_ack.sb_id_and_flags =
665 			((sb_id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) |
666 			 (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) |
667 			 (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) |
668 			 (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT));
669 
670 	REG_WR(bp, hc_addr, (*(u32 *)&igu_ack));
671 
672 	/* Make sure that ACK is written */
673 	barrier();
674 }
675 
676 static inline void bnx2x_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 storm,
677 				u16 index, u8 op, u8 update)
678 {
679 	if (bp->common.int_block == INT_BLOCK_HC)
680 		bnx2x_hc_ack_sb(bp, igu_sb_id, storm, index, op, update);
681 	else {
682 		u8 segment;
683 
684 		if (CHIP_INT_MODE_IS_BC(bp))
685 			segment = storm;
686 		else if (igu_sb_id != bp->igu_dsb_id)
687 			segment = IGU_SEG_ACCESS_DEF;
688 		else if (storm == ATTENTION_ID)
689 			segment = IGU_SEG_ACCESS_ATTN;
690 		else
691 			segment = IGU_SEG_ACCESS_DEF;
692 		bnx2x_igu_ack_sb(bp, igu_sb_id, segment, index, op, update);
693 	}
694 }
695 
696 static inline u16 bnx2x_hc_ack_int(struct bnx2x *bp)
697 {
698 	u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 +
699 		       COMMAND_REG_SIMD_MASK);
700 	u32 result = REG_RD(bp, hc_addr);
701 
702 	barrier();
703 	return result;
704 }
705 
706 static inline u16 bnx2x_igu_ack_int(struct bnx2x *bp)
707 {
708 	u32 igu_addr = (BAR_IGU_INTMEM + IGU_REG_SISR_MDPC_WMASK_LSB_UPPER*8);
709 	u32 result = REG_RD(bp, igu_addr);
710 
711 	DP(NETIF_MSG_INTR, "read 0x%08x from IGU addr 0x%x\n",
712 	   result, igu_addr);
713 
714 	barrier();
715 	return result;
716 }
717 
718 static inline u16 bnx2x_ack_int(struct bnx2x *bp)
719 {
720 	barrier();
721 	if (bp->common.int_block == INT_BLOCK_HC)
722 		return bnx2x_hc_ack_int(bp);
723 	else
724 		return bnx2x_igu_ack_int(bp);
725 }
726 
727 static inline int bnx2x_has_tx_work_unload(struct bnx2x_fp_txdata *txdata)
728 {
729 	/* Tell compiler that consumer and producer can change */
730 	barrier();
731 	return txdata->tx_pkt_prod != txdata->tx_pkt_cons;
732 }
733 
734 static inline u16 bnx2x_tx_avail(struct bnx2x *bp,
735 				 struct bnx2x_fp_txdata *txdata)
736 {
737 	s16 used;
738 	u16 prod;
739 	u16 cons;
740 
741 	prod = txdata->tx_bd_prod;
742 	cons = txdata->tx_bd_cons;
743 
744 	used = SUB_S16(prod, cons);
745 
746 #ifdef BNX2X_STOP_ON_ERROR
747 	WARN_ON(used < 0);
748 	WARN_ON(used > txdata->tx_ring_size);
749 	WARN_ON((txdata->tx_ring_size - used) > MAX_TX_AVAIL);
750 #endif
751 
752 	return (s16)(txdata->tx_ring_size) - used;
753 }
754 
755 static inline int bnx2x_tx_queue_has_work(struct bnx2x_fp_txdata *txdata)
756 {
757 	u16 hw_cons;
758 
759 	/* Tell compiler that status block fields can change */
760 	barrier();
761 	hw_cons = le16_to_cpu(*txdata->tx_cons_sb);
762 	return hw_cons != txdata->tx_pkt_cons;
763 }
764 
765 static inline bool bnx2x_has_tx_work(struct bnx2x_fastpath *fp)
766 {
767 	u8 cos;
768 	for_each_cos_in_tx_queue(fp, cos)
769 		if (bnx2x_tx_queue_has_work(fp->txdata_ptr[cos]))
770 			return true;
771 	return false;
772 }
773 
774 #define BNX2X_IS_CQE_COMPLETED(cqe_fp) (cqe_fp->marker == 0x0)
775 #define BNX2X_SEED_CQE(cqe_fp) (cqe_fp->marker = 0xFFFFFFFF)
776 static inline int bnx2x_has_rx_work(struct bnx2x_fastpath *fp)
777 {
778 	u16 cons;
779 	union eth_rx_cqe *cqe;
780 	struct eth_fast_path_rx_cqe *cqe_fp;
781 
782 	cons = RCQ_BD(fp->rx_comp_cons);
783 	cqe = &fp->rx_comp_ring[cons];
784 	cqe_fp = &cqe->fast_path_cqe;
785 	return BNX2X_IS_CQE_COMPLETED(cqe_fp);
786 }
787 
788 /**
789  * bnx2x_tx_disable - disables tx from stack point of view
790  *
791  * @bp:		driver handle
792  */
793 static inline void bnx2x_tx_disable(struct bnx2x *bp)
794 {
795 	netif_tx_disable(bp->dev);
796 	netif_carrier_off(bp->dev);
797 }
798 
799 static inline void bnx2x_free_rx_sge(struct bnx2x *bp,
800 				     struct bnx2x_fastpath *fp, u16 index)
801 {
802 	struct sw_rx_page *sw_buf = &fp->rx_page_ring[index];
803 	struct page *page = sw_buf->page;
804 	struct eth_rx_sge *sge = &fp->rx_sge_ring[index];
805 
806 	/* Skip "next page" elements */
807 	if (!page)
808 		return;
809 
810 	/* Since many fragments can share the same page, make sure to
811 	 * only unmap and free the page once.
812 	 */
813 	dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(sw_buf, mapping),
814 		       SGE_PAGE_SIZE, DMA_FROM_DEVICE);
815 
816 	put_page(page);
817 
818 	sw_buf->page = NULL;
819 	sge->addr_hi = 0;
820 	sge->addr_lo = 0;
821 }
822 
823 static inline void bnx2x_del_all_napi_cnic(struct bnx2x *bp)
824 {
825 	int i;
826 
827 	for_each_rx_queue_cnic(bp, i) {
828 		__netif_napi_del(&bnx2x_fp(bp, i, napi));
829 	}
830 	synchronize_net();
831 }
832 
833 static inline void bnx2x_del_all_napi(struct bnx2x *bp)
834 {
835 	int i;
836 
837 	for_each_eth_queue(bp, i) {
838 		__netif_napi_del(&bnx2x_fp(bp, i, napi));
839 	}
840 	synchronize_net();
841 }
842 
843 int bnx2x_set_int_mode(struct bnx2x *bp);
844 
845 static inline void bnx2x_disable_msi(struct bnx2x *bp)
846 {
847 	if (bp->flags & USING_MSIX_FLAG) {
848 		pci_disable_msix(bp->pdev);
849 		bp->flags &= ~(USING_MSIX_FLAG | USING_SINGLE_MSIX_FLAG);
850 	} else if (bp->flags & USING_MSI_FLAG) {
851 		pci_disable_msi(bp->pdev);
852 		bp->flags &= ~USING_MSI_FLAG;
853 	}
854 }
855 
856 static inline void bnx2x_clear_sge_mask_next_elems(struct bnx2x_fastpath *fp)
857 {
858 	int i, j;
859 
860 	for (i = 1; i <= NUM_RX_SGE_PAGES; i++) {
861 		int idx = RX_SGE_CNT * i - 1;
862 
863 		for (j = 0; j < 2; j++) {
864 			BIT_VEC64_CLEAR_BIT(fp->sge_mask, idx);
865 			idx--;
866 		}
867 	}
868 }
869 
870 static inline void bnx2x_init_sge_ring_bit_mask(struct bnx2x_fastpath *fp)
871 {
872 	/* Set the mask to all 1-s: it's faster to compare to 0 than to 0xf-s */
873 	memset(fp->sge_mask, 0xff, sizeof(fp->sge_mask));
874 
875 	/* Clear the two last indices in the page to 1:
876 	   these are the indices that correspond to the "next" element,
877 	   hence will never be indicated and should be removed from
878 	   the calculations. */
879 	bnx2x_clear_sge_mask_next_elems(fp);
880 }
881 
882 /* note that we are not allocating a new buffer,
883  * we are just moving one from cons to prod
884  * we are not creating a new mapping,
885  * so there is no need to check for dma_mapping_error().
886  */
887 static inline void bnx2x_reuse_rx_data(struct bnx2x_fastpath *fp,
888 				      u16 cons, u16 prod)
889 {
890 	struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons];
891 	struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod];
892 	struct eth_rx_bd *cons_bd = &fp->rx_desc_ring[cons];
893 	struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod];
894 
895 	dma_unmap_addr_set(prod_rx_buf, mapping,
896 			   dma_unmap_addr(cons_rx_buf, mapping));
897 	prod_rx_buf->data = cons_rx_buf->data;
898 	*prod_bd = *cons_bd;
899 }
900 
901 /************************* Init ******************************************/
902 
903 /* returns func by VN for current port */
904 static inline int func_by_vn(struct bnx2x *bp, int vn)
905 {
906 	return 2 * vn + BP_PORT(bp);
907 }
908 
909 static inline int bnx2x_config_rss_eth(struct bnx2x *bp, bool config_hash)
910 {
911 	return bnx2x_rss(bp, &bp->rss_conf_obj, config_hash, true);
912 }
913 
914 /**
915  * bnx2x_func_start - init function
916  *
917  * @bp:		driver handle
918  *
919  * Must be called before sending CLIENT_SETUP for the first client.
920  */
921 static inline int bnx2x_func_start(struct bnx2x *bp)
922 {
923 	struct bnx2x_func_state_params func_params = {NULL};
924 	struct bnx2x_func_start_params *start_params =
925 		&func_params.params.start;
926 	u16 port;
927 
928 	/* Prepare parameters for function state transitions */
929 	__set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
930 
931 	func_params.f_obj = &bp->func_obj;
932 	func_params.cmd = BNX2X_F_CMD_START;
933 
934 	/* Function parameters */
935 	start_params->mf_mode = bp->mf_mode;
936 	start_params->sd_vlan_tag = bp->mf_ov;
937 
938 	/* Configure Ethertype for BD mode */
939 	if (IS_MF_BD(bp)) {
940 		DP(NETIF_MSG_IFUP, "Configuring ethertype 0x88a8 for BD\n");
941 		start_params->sd_vlan_eth_type = ETH_P_8021AD;
942 		REG_WR(bp, PRS_REG_VLAN_TYPE_0, ETH_P_8021AD);
943 		REG_WR(bp, PBF_REG_VLAN_TYPE_0, ETH_P_8021AD);
944 		REG_WR(bp, NIG_REG_LLH_E1HOV_TYPE_1, ETH_P_8021AD);
945 
946 		bnx2x_get_c2s_mapping(bp, start_params->c2s_pri,
947 				      &start_params->c2s_pri_default);
948 		start_params->c2s_pri_valid = 1;
949 
950 		DP(NETIF_MSG_IFUP,
951 		   "Inner-to-Outer priority: %02x %02x %02x %02x %02x %02x %02x %02x [Default %02x]\n",
952 		   start_params->c2s_pri[0], start_params->c2s_pri[1],
953 		   start_params->c2s_pri[2], start_params->c2s_pri[3],
954 		   start_params->c2s_pri[4], start_params->c2s_pri[5],
955 		   start_params->c2s_pri[6], start_params->c2s_pri[7],
956 		   start_params->c2s_pri_default);
957 	}
958 
959 	if (CHIP_IS_E2(bp) || CHIP_IS_E3(bp))
960 		start_params->network_cos_mode = STATIC_COS;
961 	else /* CHIP_IS_E1X */
962 		start_params->network_cos_mode = FW_WRR;
963 	if (bp->udp_tunnel_ports[BNX2X_UDP_PORT_VXLAN]) {
964 		port = bp->udp_tunnel_ports[BNX2X_UDP_PORT_VXLAN];
965 		start_params->vxlan_dst_port = port;
966 	}
967 	if (bp->udp_tunnel_ports[BNX2X_UDP_PORT_GENEVE]) {
968 		port = bp->udp_tunnel_ports[BNX2X_UDP_PORT_GENEVE];
969 		start_params->geneve_dst_port = port;
970 	}
971 
972 	start_params->inner_rss = 1;
973 
974 	if (IS_MF_UFP(bp) && BNX2X_IS_MF_SD_PROTOCOL_FCOE(bp)) {
975 		start_params->class_fail_ethtype = ETH_P_FIP;
976 		start_params->class_fail = 1;
977 		start_params->no_added_tags = 1;
978 	}
979 
980 	return bnx2x_func_state_change(bp, &func_params);
981 }
982 
983 /**
984  * bnx2x_set_fw_mac_addr - fill in a MAC address in FW format
985  *
986  * @fw_hi:	pointer to upper part
987  * @fw_mid:	pointer to middle part
988  * @fw_lo:	pointer to lower part
989  * @mac:	pointer to MAC address
990  */
991 static inline void bnx2x_set_fw_mac_addr(__le16 *fw_hi, __le16 *fw_mid,
992 					 __le16 *fw_lo, u8 *mac)
993 {
994 	((u8 *)fw_hi)[0]  = mac[1];
995 	((u8 *)fw_hi)[1]  = mac[0];
996 	((u8 *)fw_mid)[0] = mac[3];
997 	((u8 *)fw_mid)[1] = mac[2];
998 	((u8 *)fw_lo)[0]  = mac[5];
999 	((u8 *)fw_lo)[1]  = mac[4];
1000 }
1001 
1002 static inline void bnx2x_free_rx_mem_pool(struct bnx2x *bp,
1003 					  struct bnx2x_alloc_pool *pool)
1004 {
1005 	if (!pool->page)
1006 		return;
1007 
1008 	put_page(pool->page);
1009 
1010 	pool->page = NULL;
1011 }
1012 
1013 static inline void bnx2x_free_rx_sge_range(struct bnx2x *bp,
1014 					   struct bnx2x_fastpath *fp, int last)
1015 {
1016 	int i;
1017 
1018 	if (fp->mode == TPA_MODE_DISABLED)
1019 		return;
1020 
1021 	for (i = 0; i < last; i++)
1022 		bnx2x_free_rx_sge(bp, fp, i);
1023 
1024 	bnx2x_free_rx_mem_pool(bp, &fp->page_pool);
1025 }
1026 
1027 static inline void bnx2x_set_next_page_rx_bd(struct bnx2x_fastpath *fp)
1028 {
1029 	int i;
1030 
1031 	for (i = 1; i <= NUM_RX_RINGS; i++) {
1032 		struct eth_rx_bd *rx_bd;
1033 
1034 		rx_bd = &fp->rx_desc_ring[RX_DESC_CNT * i - 2];
1035 		rx_bd->addr_hi =
1036 			cpu_to_le32(U64_HI(fp->rx_desc_mapping +
1037 				    BCM_PAGE_SIZE*(i % NUM_RX_RINGS)));
1038 		rx_bd->addr_lo =
1039 			cpu_to_le32(U64_LO(fp->rx_desc_mapping +
1040 				    BCM_PAGE_SIZE*(i % NUM_RX_RINGS)));
1041 	}
1042 }
1043 
1044 /* Statistics ID are global per chip/path, while Client IDs for E1x are per
1045  * port.
1046  */
1047 static inline u8 bnx2x_stats_id(struct bnx2x_fastpath *fp)
1048 {
1049 	struct bnx2x *bp = fp->bp;
1050 	if (!CHIP_IS_E1x(bp)) {
1051 		/* there are special statistics counters for FCoE 136..140 */
1052 		if (IS_FCOE_FP(fp))
1053 			return bp->cnic_base_cl_id + (bp->pf_num >> 1);
1054 		return fp->cl_id;
1055 	}
1056 	return fp->cl_id + BP_PORT(bp) * FP_SB_MAX_E1x;
1057 }
1058 
1059 static inline void bnx2x_init_vlan_mac_fp_objs(struct bnx2x_fastpath *fp,
1060 					       bnx2x_obj_type obj_type)
1061 {
1062 	struct bnx2x *bp = fp->bp;
1063 
1064 	/* Configure classification DBs */
1065 	bnx2x_init_mac_obj(bp, &bnx2x_sp_obj(bp, fp).mac_obj, fp->cl_id,
1066 			   fp->cid, BP_FUNC(bp), bnx2x_sp(bp, mac_rdata),
1067 			   bnx2x_sp_mapping(bp, mac_rdata),
1068 			   BNX2X_FILTER_MAC_PENDING,
1069 			   &bp->sp_state, obj_type,
1070 			   &bp->macs_pool);
1071 
1072 	if (!CHIP_IS_E1x(bp))
1073 		bnx2x_init_vlan_obj(bp, &bnx2x_sp_obj(bp, fp).vlan_obj,
1074 				    fp->cl_id, fp->cid, BP_FUNC(bp),
1075 				    bnx2x_sp(bp, vlan_rdata),
1076 				    bnx2x_sp_mapping(bp, vlan_rdata),
1077 				    BNX2X_FILTER_VLAN_PENDING,
1078 				    &bp->sp_state, obj_type,
1079 				    &bp->vlans_pool);
1080 }
1081 
1082 /**
1083  * bnx2x_get_path_func_num - get number of active functions
1084  *
1085  * @bp:		driver handle
1086  *
1087  * Calculates the number of active (not hidden) functions on the
1088  * current path.
1089  */
1090 static inline u8 bnx2x_get_path_func_num(struct bnx2x *bp)
1091 {
1092 	u8 func_num = 0, i;
1093 
1094 	/* 57710 has only one function per-port */
1095 	if (CHIP_IS_E1(bp))
1096 		return 1;
1097 
1098 	/* Calculate a number of functions enabled on the current
1099 	 * PATH/PORT.
1100 	 */
1101 	if (CHIP_REV_IS_SLOW(bp)) {
1102 		if (IS_MF(bp))
1103 			func_num = 4;
1104 		else
1105 			func_num = 2;
1106 	} else {
1107 		for (i = 0; i < E1H_FUNC_MAX / 2; i++) {
1108 			u32 func_config =
1109 				MF_CFG_RD(bp,
1110 					  func_mf_config[BP_PATH(bp) + 2 * i].
1111 					  config);
1112 			func_num +=
1113 				((func_config & FUNC_MF_CFG_FUNC_HIDE) ? 0 : 1);
1114 		}
1115 	}
1116 
1117 	WARN_ON(!func_num);
1118 
1119 	return func_num;
1120 }
1121 
1122 static inline void bnx2x_init_bp_objs(struct bnx2x *bp)
1123 {
1124 	/* RX_MODE controlling object */
1125 	bnx2x_init_rx_mode_obj(bp, &bp->rx_mode_obj);
1126 
1127 	/* multicast configuration controlling object */
1128 	bnx2x_init_mcast_obj(bp, &bp->mcast_obj, bp->fp->cl_id, bp->fp->cid,
1129 			     BP_FUNC(bp), BP_FUNC(bp),
1130 			     bnx2x_sp(bp, mcast_rdata),
1131 			     bnx2x_sp_mapping(bp, mcast_rdata),
1132 			     BNX2X_FILTER_MCAST_PENDING, &bp->sp_state,
1133 			     BNX2X_OBJ_TYPE_RX);
1134 
1135 	/* Setup CAM credit pools */
1136 	bnx2x_init_mac_credit_pool(bp, &bp->macs_pool, BP_FUNC(bp),
1137 				   bnx2x_get_path_func_num(bp));
1138 
1139 	bnx2x_init_vlan_credit_pool(bp, &bp->vlans_pool, BP_FUNC(bp),
1140 				    bnx2x_get_path_func_num(bp));
1141 
1142 	/* RSS configuration object */
1143 	bnx2x_init_rss_config_obj(bp, &bp->rss_conf_obj, bp->fp->cl_id,
1144 				  bp->fp->cid, BP_FUNC(bp), BP_FUNC(bp),
1145 				  bnx2x_sp(bp, rss_rdata),
1146 				  bnx2x_sp_mapping(bp, rss_rdata),
1147 				  BNX2X_FILTER_RSS_CONF_PENDING, &bp->sp_state,
1148 				  BNX2X_OBJ_TYPE_RX);
1149 
1150 	bp->vlan_credit = PF_VLAN_CREDIT_E2(bp, bnx2x_get_path_func_num(bp));
1151 }
1152 
1153 static inline u8 bnx2x_fp_qzone_id(struct bnx2x_fastpath *fp)
1154 {
1155 	if (CHIP_IS_E1x(fp->bp))
1156 		return fp->cl_id + BP_PORT(fp->bp) * ETH_MAX_RX_CLIENTS_E1H;
1157 	else
1158 		return fp->cl_id;
1159 }
1160 
1161 static inline void bnx2x_init_txdata(struct bnx2x *bp,
1162 				     struct bnx2x_fp_txdata *txdata, u32 cid,
1163 				     int txq_index, __le16 *tx_cons_sb,
1164 				     struct bnx2x_fastpath *fp)
1165 {
1166 	txdata->cid = cid;
1167 	txdata->txq_index = txq_index;
1168 	txdata->tx_cons_sb = tx_cons_sb;
1169 	txdata->parent_fp = fp;
1170 	txdata->tx_ring_size = IS_FCOE_FP(fp) ? MAX_TX_AVAIL : bp->tx_ring_size;
1171 
1172 	DP(NETIF_MSG_IFUP, "created tx data cid %d, txq %d\n",
1173 	   txdata->cid, txdata->txq_index);
1174 }
1175 
1176 static inline u8 bnx2x_cnic_eth_cl_id(struct bnx2x *bp, u8 cl_idx)
1177 {
1178 	return bp->cnic_base_cl_id + cl_idx +
1179 		(bp->pf_num >> 1) * BNX2X_MAX_CNIC_ETH_CL_ID_IDX;
1180 }
1181 
1182 static inline u8 bnx2x_cnic_fw_sb_id(struct bnx2x *bp)
1183 {
1184 	/* the 'first' id is allocated for the cnic */
1185 	return bp->base_fw_ndsb;
1186 }
1187 
1188 static inline u8 bnx2x_cnic_igu_sb_id(struct bnx2x *bp)
1189 {
1190 	return bp->igu_base_sb;
1191 }
1192 
1193 static inline int bnx2x_clean_tx_queue(struct bnx2x *bp,
1194 				       struct bnx2x_fp_txdata *txdata)
1195 {
1196 	int cnt = 1000;
1197 
1198 	while (bnx2x_has_tx_work_unload(txdata)) {
1199 		if (!cnt) {
1200 			BNX2X_ERR("timeout waiting for queue[%d]: txdata->tx_pkt_prod(%d) != txdata->tx_pkt_cons(%d)\n",
1201 				  txdata->txq_index, txdata->tx_pkt_prod,
1202 				  txdata->tx_pkt_cons);
1203 #ifdef BNX2X_STOP_ON_ERROR
1204 			bnx2x_panic();
1205 			return -EBUSY;
1206 #else
1207 			break;
1208 #endif
1209 		}
1210 		cnt--;
1211 		usleep_range(1000, 2000);
1212 	}
1213 
1214 	return 0;
1215 }
1216 
1217 int bnx2x_get_link_cfg_idx(struct bnx2x *bp);
1218 
1219 static inline void __storm_memset_struct(struct bnx2x *bp,
1220 					 u32 addr, size_t size, u32 *data)
1221 {
1222 	int i;
1223 	for (i = 0; i < size/4; i++)
1224 		REG_WR(bp, addr + (i * 4), data[i]);
1225 }
1226 
1227 /**
1228  * bnx2x_wait_sp_comp - wait for the outstanding SP commands.
1229  *
1230  * @bp:		driver handle
1231  * @mask:	bits that need to be cleared
1232  */
1233 static inline bool bnx2x_wait_sp_comp(struct bnx2x *bp, unsigned long mask)
1234 {
1235 	int tout = 5000; /* Wait for 5 secs tops */
1236 
1237 	while (tout--) {
1238 		smp_mb();
1239 		netif_addr_lock_bh(bp->dev);
1240 		if (!(bp->sp_state & mask)) {
1241 			netif_addr_unlock_bh(bp->dev);
1242 			return true;
1243 		}
1244 		netif_addr_unlock_bh(bp->dev);
1245 
1246 		usleep_range(1000, 2000);
1247 	}
1248 
1249 	smp_mb();
1250 
1251 	netif_addr_lock_bh(bp->dev);
1252 	if (bp->sp_state & mask) {
1253 		BNX2X_ERR("Filtering completion timed out. sp_state 0x%lx, mask 0x%lx\n",
1254 			  bp->sp_state, mask);
1255 		netif_addr_unlock_bh(bp->dev);
1256 		return false;
1257 	}
1258 	netif_addr_unlock_bh(bp->dev);
1259 
1260 	return true;
1261 }
1262 
1263 /**
1264  * bnx2x_set_ctx_validation - set CDU context validation values
1265  *
1266  * @bp:		driver handle
1267  * @cxt:	context of the connection on the host memory
1268  * @cid:	SW CID of the connection to be configured
1269  */
1270 void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt,
1271 			      u32 cid);
1272 
1273 void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id,
1274 				    u8 sb_index, u8 disable, u16 usec);
1275 void bnx2x_acquire_phy_lock(struct bnx2x *bp);
1276 void bnx2x_release_phy_lock(struct bnx2x *bp);
1277 
1278 /**
1279  * bnx2x_extract_max_cfg - extract MAX BW part from MF configuration.
1280  *
1281  * @bp:		driver handle
1282  * @mf_cfg:	MF configuration
1283  *
1284  */
1285 static inline u16 bnx2x_extract_max_cfg(struct bnx2x *bp, u32 mf_cfg)
1286 {
1287 	u16 max_cfg = (mf_cfg & FUNC_MF_CFG_MAX_BW_MASK) >>
1288 			      FUNC_MF_CFG_MAX_BW_SHIFT;
1289 	if (!max_cfg) {
1290 		DP(NETIF_MSG_IFUP | BNX2X_MSG_ETHTOOL,
1291 		   "Max BW configured to 0 - using 100 instead\n");
1292 		max_cfg = 100;
1293 	}
1294 	return max_cfg;
1295 }
1296 
1297 /* checks if HW supports GRO for given MTU */
1298 static inline bool bnx2x_mtu_allows_gro(int mtu)
1299 {
1300 	/* gro frags per page */
1301 	int fpp = SGE_PAGE_SIZE / (mtu - ETH_MAX_TPA_HEADER_SIZE);
1302 
1303 	/*
1304 	 * 1. Number of frags should not grow above MAX_SKB_FRAGS
1305 	 * 2. Frag must fit the page
1306 	 */
1307 	return mtu <= SGE_PAGE_SIZE && (U_ETH_SGL_SIZE * fpp) <= MAX_SKB_FRAGS;
1308 }
1309 
1310 /**
1311  * bnx2x_get_iscsi_info - update iSCSI params according to licensing info.
1312  *
1313  * @bp:		driver handle
1314  *
1315  */
1316 void bnx2x_get_iscsi_info(struct bnx2x *bp);
1317 
1318 /**
1319  * bnx2x_link_sync_notify - send notification to other functions.
1320  *
1321  * @bp:		driver handle
1322  *
1323  */
1324 static inline void bnx2x_link_sync_notify(struct bnx2x *bp)
1325 {
1326 	int func;
1327 	int vn;
1328 
1329 	/* Set the attention towards other drivers on the same port */
1330 	for (vn = VN_0; vn < BP_MAX_VN_NUM(bp); vn++) {
1331 		if (vn == BP_VN(bp))
1332 			continue;
1333 
1334 		func = func_by_vn(bp, vn);
1335 		REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_0 +
1336 		       (LINK_SYNC_ATTENTION_BIT_FUNC_0 + func)*4, 1);
1337 	}
1338 }
1339 
1340 /**
1341  * bnx2x_update_drv_flags - update flags in shmem
1342  *
1343  * @bp:		driver handle
1344  * @flags:	flags to update
1345  * @set:	set or clear
1346  *
1347  */
1348 static inline void bnx2x_update_drv_flags(struct bnx2x *bp, u32 flags, u32 set)
1349 {
1350 	if (SHMEM2_HAS(bp, drv_flags)) {
1351 		u32 drv_flags;
1352 		bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_DRV_FLAGS);
1353 		drv_flags = SHMEM2_RD(bp, drv_flags);
1354 
1355 		if (set)
1356 			SET_FLAGS(drv_flags, flags);
1357 		else
1358 			RESET_FLAGS(drv_flags, flags);
1359 
1360 		SHMEM2_WR(bp, drv_flags, drv_flags);
1361 		DP(NETIF_MSG_IFUP, "drv_flags 0x%08x\n", drv_flags);
1362 		bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_DRV_FLAGS);
1363 	}
1364 }
1365 
1366 
1367 
1368 /**
1369  * bnx2x_fill_fw_str - Fill buffer with FW version string
1370  *
1371  * @bp:        driver handle
1372  * @buf:       character buffer to fill with the fw name
1373  * @buf_len:   length of the above buffer
1374  *
1375  */
1376 void bnx2x_fill_fw_str(struct bnx2x *bp, char *buf, size_t buf_len);
1377 
1378 int bnx2x_drain_tx_queues(struct bnx2x *bp);
1379 void bnx2x_squeeze_objects(struct bnx2x *bp);
1380 
1381 void bnx2x_schedule_sp_rtnl(struct bnx2x*, enum sp_rtnl_flag,
1382 			    u32 verbose);
1383 
1384 /**
1385  * bnx2x_set_os_driver_state - write driver state for management FW usage
1386  *
1387  * @bp:		driver handle
1388  * @state:	OS_DRIVER_STATE_* value reflecting current driver state
1389  */
1390 void bnx2x_set_os_driver_state(struct bnx2x *bp, u32 state);
1391 
1392 /**
1393  * bnx2x_nvram_read - reads data from nvram [might sleep]
1394  *
1395  * @bp:		driver handle
1396  * @offset:	byte offset in nvram
1397  * @ret_buf:	pointer to buffer where data is to be stored
1398  * @buf_size:   Length of 'ret_buf' in bytes
1399  */
1400 int bnx2x_nvram_read(struct bnx2x *bp, u32 offset, u8 *ret_buf,
1401 		     int buf_size);
1402 
1403 #endif /* BNX2X_CMN_H */
1404