1 /******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2003 - 2015 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
11 * Copyright(c) 2018 - 2019 Intel Corporation
12 *
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of version 2 of the GNU General Public License as
15 * published by the Free Software Foundation.
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17 * This program is distributed in the hope that it will be useful, but WITHOUT
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19 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
20 * more details.
21 *
22 * The full GNU General Public License is included in this distribution in the
23 * file called COPYING.
24 *
25 * Contact Information:
26 * Intel Linux Wireless <linuxwifi@intel.com>
27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *
29 * BSD LICENSE
30 *
31 * Copyright(c) 2003 - 2015 Intel Corporation. All rights reserved.
32 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
33 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
34 * Copyright(c) 2018 - 2019 Intel Corporation
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63 *****************************************************************************/
64 #ifndef __iwl_trans_int_pcie_h__
65 #define __iwl_trans_int_pcie_h__
66
67 #include <linux/spinlock.h>
68 #include <linux/interrupt.h>
69 #include <linux/skbuff.h>
70 #include <linux/wait.h>
71 #include <linux/pci.h>
72 #include <linux/timer.h>
73 #include <linux/cpu.h>
74
75 #include "iwl-fh.h"
76 #include "iwl-csr.h"
77 #include "iwl-trans.h"
78 #include "iwl-debug.h"
79 #include "iwl-io.h"
80 #include "iwl-op-mode.h"
81 #include "iwl-drv.h"
82
83 /* We need 2 entries for the TX command and header, and another one might
84 * be needed for potential data in the SKB's head. The remaining ones can
85 * be used for frags.
86 */
87 #define IWL_PCIE_MAX_FRAGS(x) (x->max_tbs - 3)
88
89 /*
90 * RX related structures and functions
91 */
92 #define RX_NUM_QUEUES 1
93 #define RX_POST_REQ_ALLOC 2
94 #define RX_CLAIM_REQ_ALLOC 8
95 #define RX_PENDING_WATERMARK 16
96 #define FIRST_RX_QUEUE 512
97
98 struct iwl_host_cmd;
99
100 /*This file includes the declaration that are internal to the
101 * trans_pcie layer */
102
103 /**
104 * struct iwl_rx_mem_buffer
105 * @page_dma: bus address of rxb page
106 * @page: driver's pointer to the rxb page
107 * @invalid: rxb is in driver ownership - not owned by HW
108 * @vid: index of this rxb in the global table
109 */
110 struct iwl_rx_mem_buffer {
111 dma_addr_t page_dma;
112 struct page *page;
113 u16 vid;
114 bool invalid;
115 struct list_head list;
116 };
117
118 /**
119 * struct isr_statistics - interrupt statistics
120 *
121 */
122 struct isr_statistics {
123 u32 hw;
124 u32 sw;
125 u32 err_code;
126 u32 sch;
127 u32 alive;
128 u32 rfkill;
129 u32 ctkill;
130 u32 wakeup;
131 u32 rx;
132 u32 tx;
133 u32 unhandled;
134 };
135
136 /**
137 * struct iwl_rx_transfer_desc - transfer descriptor
138 * @addr: ptr to free buffer start address
139 * @rbid: unique tag of the buffer
140 * @reserved: reserved
141 */
142 struct iwl_rx_transfer_desc {
143 __le16 rbid;
144 __le16 reserved[3];
145 __le64 addr;
146 } __packed;
147
148 #define IWL_RX_CD_FLAGS_FRAGMENTED BIT(0)
149
150 /**
151 * struct iwl_rx_completion_desc - completion descriptor
152 * @reserved1: reserved
153 * @rbid: unique tag of the received buffer
154 * @flags: flags (0: fragmented, all others: reserved)
155 * @reserved2: reserved
156 */
157 struct iwl_rx_completion_desc {
158 __le32 reserved1;
159 __le16 rbid;
160 u8 flags;
161 u8 reserved2[25];
162 } __packed;
163
164 /**
165 * struct iwl_rxq - Rx queue
166 * @id: queue index
167 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd).
168 * Address size is 32 bit in pre-9000 devices and 64 bit in 9000 devices.
169 * In 22560 devices it is a pointer to a list of iwl_rx_transfer_desc's
170 * @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
171 * @ubd: driver's pointer to buffer of used receive buffer descriptors (rbd)
172 * @ubd_dma: physical address of buffer of used receive buffer descriptors (rbd)
173 * @tr_tail: driver's pointer to the transmission ring tail buffer
174 * @tr_tail_dma: physical address of the buffer for the transmission ring tail
175 * @cr_tail: driver's pointer to the completion ring tail buffer
176 * @cr_tail_dma: physical address of the buffer for the completion ring tail
177 * @read: Shared index to newest available Rx buffer
178 * @write: Shared index to oldest written Rx packet
179 * @free_count: Number of pre-allocated buffers in rx_free
180 * @used_count: Number of RBDs handled to allocator to use for allocation
181 * @write_actual:
182 * @rx_free: list of RBDs with allocated RB ready for use
183 * @rx_used: list of RBDs with no RB attached
184 * @need_update: flag to indicate we need to update read/write index
185 * @rb_stts: driver's pointer to receive buffer status
186 * @rb_stts_dma: bus address of receive buffer status
187 * @lock:
188 * @queue: actual rx queue. Not used for multi-rx queue.
189 *
190 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
191 */
192 struct iwl_rxq {
193 int id;
194 void *bd;
195 dma_addr_t bd_dma;
196 union {
197 void *used_bd;
198 __le32 *bd_32;
199 struct iwl_rx_completion_desc *cd;
200 };
201 dma_addr_t used_bd_dma;
202 __le16 *tr_tail;
203 dma_addr_t tr_tail_dma;
204 __le16 *cr_tail;
205 dma_addr_t cr_tail_dma;
206 u32 read;
207 u32 write;
208 u32 free_count;
209 u32 used_count;
210 u32 write_actual;
211 u32 queue_size;
212 struct list_head rx_free;
213 struct list_head rx_used;
214 bool need_update;
215 void *rb_stts;
216 dma_addr_t rb_stts_dma;
217 spinlock_t lock;
218 struct napi_struct napi;
219 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
220 };
221
222 /**
223 * struct iwl_rb_allocator - Rx allocator
224 * @req_pending: number of requests the allcator had not processed yet
225 * @req_ready: number of requests honored and ready for claiming
226 * @rbd_allocated: RBDs with pages allocated and ready to be handled to
227 * the queue. This is a list of &struct iwl_rx_mem_buffer
228 * @rbd_empty: RBDs with no page attached for allocator use. This is a list
229 * of &struct iwl_rx_mem_buffer
230 * @lock: protects the rbd_allocated and rbd_empty lists
231 * @alloc_wq: work queue for background calls
232 * @rx_alloc: work struct for background calls
233 */
234 struct iwl_rb_allocator {
235 atomic_t req_pending;
236 atomic_t req_ready;
237 struct list_head rbd_allocated;
238 struct list_head rbd_empty;
239 spinlock_t lock;
240 struct workqueue_struct *alloc_wq;
241 struct work_struct rx_alloc;
242 };
243
244 struct iwl_dma_ptr {
245 dma_addr_t dma;
246 void *addr;
247 size_t size;
248 };
249
250 /**
251 * iwl_queue_inc_wrap - increment queue index, wrap back to beginning
252 * @index -- current index
253 */
iwl_queue_inc_wrap(struct iwl_trans * trans,int index)254 static inline int iwl_queue_inc_wrap(struct iwl_trans *trans, int index)
255 {
256 return ++index &
257 (trans->trans_cfg->base_params->max_tfd_queue_size - 1);
258 }
259
260 /**
261 * iwl_get_closed_rb_stts - get closed rb stts from different structs
262 * @rxq - the rxq to get the rb stts from
263 */
iwl_get_closed_rb_stts(struct iwl_trans * trans,struct iwl_rxq * rxq)264 static inline __le16 iwl_get_closed_rb_stts(struct iwl_trans *trans,
265 struct iwl_rxq *rxq)
266 {
267 if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22560) {
268 __le16 *rb_stts = rxq->rb_stts;
269
270 return READ_ONCE(*rb_stts);
271 } else {
272 struct iwl_rb_status *rb_stts = rxq->rb_stts;
273
274 return READ_ONCE(rb_stts->closed_rb_num);
275 }
276 }
277
278 /**
279 * iwl_queue_dec_wrap - decrement queue index, wrap back to end
280 * @index -- current index
281 */
iwl_queue_dec_wrap(struct iwl_trans * trans,int index)282 static inline int iwl_queue_dec_wrap(struct iwl_trans *trans, int index)
283 {
284 return --index &
285 (trans->trans_cfg->base_params->max_tfd_queue_size - 1);
286 }
287
288 struct iwl_cmd_meta {
289 /* only for SYNC commands, iff the reply skb is wanted */
290 struct iwl_host_cmd *source;
291 u32 flags;
292 u32 tbs;
293 };
294
295 /*
296 * The FH will write back to the first TB only, so we need to copy some data
297 * into the buffer regardless of whether it should be mapped or not.
298 * This indicates how big the first TB must be to include the scratch buffer
299 * and the assigned PN.
300 * Since PN location is 8 bytes at offset 12, it's 20 now.
301 * If we make it bigger then allocations will be bigger and copy slower, so
302 * that's probably not useful.
303 */
304 #define IWL_FIRST_TB_SIZE 20
305 #define IWL_FIRST_TB_SIZE_ALIGN ALIGN(IWL_FIRST_TB_SIZE, 64)
306
307 struct iwl_pcie_txq_entry {
308 struct iwl_device_cmd *cmd;
309 struct sk_buff *skb;
310 /* buffer to free after command completes */
311 const void *free_buf;
312 struct iwl_cmd_meta meta;
313 };
314
315 struct iwl_pcie_first_tb_buf {
316 u8 buf[IWL_FIRST_TB_SIZE_ALIGN];
317 };
318
319 /**
320 * struct iwl_txq - Tx Queue for DMA
321 * @q: generic Rx/Tx queue descriptor
322 * @tfds: transmit frame descriptors (DMA memory)
323 * @first_tb_bufs: start of command headers, including scratch buffers, for
324 * the writeback -- this is DMA memory and an array holding one buffer
325 * for each command on the queue
326 * @first_tb_dma: DMA address for the first_tb_bufs start
327 * @entries: transmit entries (driver state)
328 * @lock: queue lock
329 * @stuck_timer: timer that fires if queue gets stuck
330 * @trans_pcie: pointer back to transport (for timer)
331 * @need_update: indicates need to update read/write index
332 * @ampdu: true if this queue is an ampdu queue for an specific RA/TID
333 * @wd_timeout: queue watchdog timeout (jiffies) - per queue
334 * @frozen: tx stuck queue timer is frozen
335 * @frozen_expiry_remainder: remember how long until the timer fires
336 * @bc_tbl: byte count table of the queue (relevant only for gen2 transport)
337 * @write_ptr: 1-st empty entry (index) host_w
338 * @read_ptr: last used entry (index) host_r
339 * @dma_addr: physical addr for BD's
340 * @n_window: safe queue window
341 * @id: queue id
342 * @low_mark: low watermark, resume queue if free space more than this
343 * @high_mark: high watermark, stop queue if free space less than this
344 *
345 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
346 * descriptors) and required locking structures.
347 *
348 * Note the difference between TFD_QUEUE_SIZE_MAX and n_window: the hardware
349 * always assumes 256 descriptors, so TFD_QUEUE_SIZE_MAX is always 256 (unless
350 * there might be HW changes in the future). For the normal TX
351 * queues, n_window, which is the size of the software queue data
352 * is also 256; however, for the command queue, n_window is only
353 * 32 since we don't need so many commands pending. Since the HW
354 * still uses 256 BDs for DMA though, TFD_QUEUE_SIZE_MAX stays 256.
355 * This means that we end up with the following:
356 * HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 |
357 * SW entries: | 0 | ... | 31 |
358 * where N is a number between 0 and 7. This means that the SW
359 * data is a window overlayed over the HW queue.
360 */
361 struct iwl_txq {
362 void *tfds;
363 struct iwl_pcie_first_tb_buf *first_tb_bufs;
364 dma_addr_t first_tb_dma;
365 struct iwl_pcie_txq_entry *entries;
366 spinlock_t lock;
367 unsigned long frozen_expiry_remainder;
368 struct timer_list stuck_timer;
369 struct iwl_trans_pcie *trans_pcie;
370 bool need_update;
371 bool frozen;
372 bool ampdu;
373 int block;
374 unsigned long wd_timeout;
375 struct sk_buff_head overflow_q;
376 struct iwl_dma_ptr bc_tbl;
377
378 int write_ptr;
379 int read_ptr;
380 dma_addr_t dma_addr;
381 int n_window;
382 u32 id;
383 int low_mark;
384 int high_mark;
385
386 bool overflow_tx;
387 };
388
389 static inline dma_addr_t
iwl_pcie_get_first_tb_dma(struct iwl_txq * txq,int idx)390 iwl_pcie_get_first_tb_dma(struct iwl_txq *txq, int idx)
391 {
392 return txq->first_tb_dma +
393 sizeof(struct iwl_pcie_first_tb_buf) * idx;
394 }
395
396 struct iwl_tso_hdr_page {
397 struct page *page;
398 u8 *pos;
399 };
400
401 #ifdef CONFIG_IWLWIFI_DEBUGFS
402 /**
403 * enum iwl_fw_mon_dbgfs_state - the different states of the monitor_data
404 * debugfs file
405 *
406 * @IWL_FW_MON_DBGFS_STATE_CLOSED: the file is closed.
407 * @IWL_FW_MON_DBGFS_STATE_OPEN: the file is open.
408 * @IWL_FW_MON_DBGFS_STATE_DISABLED: the file is disabled, once this state is
409 * set the file can no longer be used.
410 */
411 enum iwl_fw_mon_dbgfs_state {
412 IWL_FW_MON_DBGFS_STATE_CLOSED,
413 IWL_FW_MON_DBGFS_STATE_OPEN,
414 IWL_FW_MON_DBGFS_STATE_DISABLED,
415 };
416 #endif
417
418 /**
419 * enum iwl_shared_irq_flags - level of sharing for irq
420 * @IWL_SHARED_IRQ_NON_RX: interrupt vector serves non rx causes.
421 * @IWL_SHARED_IRQ_FIRST_RSS: interrupt vector serves first RSS queue.
422 */
423 enum iwl_shared_irq_flags {
424 IWL_SHARED_IRQ_NON_RX = BIT(0),
425 IWL_SHARED_IRQ_FIRST_RSS = BIT(1),
426 };
427
428 /**
429 * enum iwl_image_response_code - image response values
430 * @IWL_IMAGE_RESP_DEF: the default value of the register
431 * @IWL_IMAGE_RESP_SUCCESS: iml was read successfully
432 * @IWL_IMAGE_RESP_FAIL: iml reading failed
433 */
434 enum iwl_image_response_code {
435 IWL_IMAGE_RESP_DEF = 0,
436 IWL_IMAGE_RESP_SUCCESS = 1,
437 IWL_IMAGE_RESP_FAIL = 2,
438 };
439
440 /**
441 * struct cont_rec: continuous recording data structure
442 * @prev_wr_ptr: the last address that was read in monitor_data
443 * debugfs file
444 * @prev_wrap_cnt: the wrap count that was used during the last read in
445 * monitor_data debugfs file
446 * @state: the state of monitor_data debugfs file as described
447 * in &iwl_fw_mon_dbgfs_state enum
448 * @mutex: locked while reading from monitor_data debugfs file
449 */
450 #ifdef CONFIG_IWLWIFI_DEBUGFS
451 struct cont_rec {
452 u32 prev_wr_ptr;
453 u32 prev_wrap_cnt;
454 u8 state;
455 /* Used to sync monitor_data debugfs file with driver unload flow */
456 struct mutex mutex;
457 };
458 #endif
459
460 /**
461 * struct iwl_trans_pcie - PCIe transport specific data
462 * @rxq: all the RX queue data
463 * @rx_pool: initial pool of iwl_rx_mem_buffer for all the queues
464 * @global_table: table mapping received VID from hw to rxb
465 * @rba: allocator for RX replenishing
466 * @ctxt_info: context information for FW self init
467 * @ctxt_info_gen3: context information for gen3 devices
468 * @prph_info: prph info for self init
469 * @prph_scratch: prph scratch for self init
470 * @ctxt_info_dma_addr: dma addr of context information
471 * @prph_info_dma_addr: dma addr of prph info
472 * @prph_scratch_dma_addr: dma addr of prph scratch
473 * @ctxt_info_dma_addr: dma addr of context information
474 * @init_dram: DRAM data of firmware image (including paging).
475 * Context information addresses will be taken from here.
476 * This is driver's local copy for keeping track of size and
477 * count for allocating and freeing the memory.
478 * @trans: pointer to the generic transport area
479 * @scd_base_addr: scheduler sram base address in SRAM
480 * @scd_bc_tbls: pointer to the byte count table of the scheduler
481 * @kw: keep warm address
482 * @pci_dev: basic pci-network driver stuff
483 * @hw_base: pci hardware address support
484 * @ucode_write_complete: indicates that the ucode has been copied.
485 * @ucode_write_waitq: wait queue for uCode load
486 * @cmd_queue - command queue number
487 * @def_rx_queue - default rx queue number
488 * @rx_buf_size: Rx buffer size
489 * @bc_table_dword: true if the BC table expects DWORD (as opposed to bytes)
490 * @scd_set_active: should the transport configure the SCD for HCMD queue
491 * @sw_csum_tx: if true, then the transport will compute the csum of the TXed
492 * frame.
493 * @rx_page_order: page order for receive buffer size
494 * @reg_lock: protect hw register access
495 * @mutex: to protect stop_device / start_fw / start_hw
496 * @cmd_in_flight: true when we have a host command in flight
497 #ifdef CONFIG_IWLWIFI_DEBUGFS
498 * @fw_mon_data: fw continuous recording data
499 #endif
500 * @msix_entries: array of MSI-X entries
501 * @msix_enabled: true if managed to enable MSI-X
502 * @shared_vec_mask: the type of causes the shared vector handles
503 * (see iwl_shared_irq_flags).
504 * @alloc_vecs: the number of interrupt vectors allocated by the OS
505 * @def_irq: default irq for non rx causes
506 * @fh_init_mask: initial unmasked fh causes
507 * @hw_init_mask: initial unmasked hw causes
508 * @fh_mask: current unmasked fh causes
509 * @hw_mask: current unmasked hw causes
510 * @in_rescan: true if we have triggered a device rescan
511 * @base_rb_stts: base virtual address of receive buffer status for all queues
512 * @base_rb_stts_dma: base physical address of receive buffer status
513 */
514 struct iwl_trans_pcie {
515 struct iwl_rxq *rxq;
516 struct iwl_rx_mem_buffer rx_pool[RX_POOL_SIZE];
517 struct iwl_rx_mem_buffer *global_table[RX_POOL_SIZE];
518 struct iwl_rb_allocator rba;
519 union {
520 struct iwl_context_info *ctxt_info;
521 struct iwl_context_info_gen3 *ctxt_info_gen3;
522 };
523 struct iwl_prph_info *prph_info;
524 struct iwl_prph_scratch *prph_scratch;
525 dma_addr_t ctxt_info_dma_addr;
526 dma_addr_t prph_info_dma_addr;
527 dma_addr_t prph_scratch_dma_addr;
528 dma_addr_t iml_dma_addr;
529 struct iwl_trans *trans;
530
531 struct net_device napi_dev;
532
533 struct __percpu iwl_tso_hdr_page *tso_hdr_page;
534
535 /* INT ICT Table */
536 __le32 *ict_tbl;
537 dma_addr_t ict_tbl_dma;
538 int ict_index;
539 bool use_ict;
540 bool is_down, opmode_down;
541 s8 debug_rfkill;
542 struct isr_statistics isr_stats;
543
544 spinlock_t irq_lock;
545 struct mutex mutex;
546 u32 inta_mask;
547 u32 scd_base_addr;
548 struct iwl_dma_ptr scd_bc_tbls;
549 struct iwl_dma_ptr kw;
550
551 struct iwl_txq *txq_memory;
552 struct iwl_txq *txq[IWL_MAX_TVQM_QUEUES];
553 unsigned long queue_used[BITS_TO_LONGS(IWL_MAX_TVQM_QUEUES)];
554 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_TVQM_QUEUES)];
555
556 /* PCI bus related data */
557 struct pci_dev *pci_dev;
558 void __iomem *hw_base;
559
560 bool ucode_write_complete;
561 bool sx_complete;
562 wait_queue_head_t ucode_write_waitq;
563 wait_queue_head_t wait_command_queue;
564 wait_queue_head_t sx_waitq;
565
566 u8 page_offs, dev_cmd_offs;
567
568 u8 cmd_queue;
569 u8 def_rx_queue;
570 u8 cmd_fifo;
571 unsigned int cmd_q_wdg_timeout;
572 u8 n_no_reclaim_cmds;
573 u8 no_reclaim_cmds[MAX_NO_RECLAIM_CMDS];
574 u8 max_tbs;
575 u16 tfd_size;
576
577 enum iwl_amsdu_size rx_buf_size;
578 bool bc_table_dword;
579 bool scd_set_active;
580 bool sw_csum_tx;
581 bool pcie_dbg_dumped_once;
582 u32 rx_page_order;
583
584 /*protect hw register */
585 spinlock_t reg_lock;
586 bool cmd_hold_nic_awake;
587
588 #ifdef CONFIG_IWLWIFI_DEBUGFS
589 struct cont_rec fw_mon_data;
590 #endif
591
592 struct msix_entry msix_entries[IWL_MAX_RX_HW_QUEUES];
593 bool msix_enabled;
594 u8 shared_vec_mask;
595 u32 alloc_vecs;
596 u32 def_irq;
597 u32 fh_init_mask;
598 u32 hw_init_mask;
599 u32 fh_mask;
600 u32 hw_mask;
601 cpumask_t affinity_mask[IWL_MAX_RX_HW_QUEUES];
602 u16 tx_cmd_queue_size;
603 bool in_rescan;
604
605 void *base_rb_stts;
606 dma_addr_t base_rb_stts_dma;
607 };
608
609 static inline struct iwl_trans_pcie *
IWL_TRANS_GET_PCIE_TRANS(struct iwl_trans * trans)610 IWL_TRANS_GET_PCIE_TRANS(struct iwl_trans *trans)
611 {
612 return (void *)trans->trans_specific;
613 }
614
iwl_pcie_clear_irq(struct iwl_trans * trans,struct msix_entry * entry)615 static inline void iwl_pcie_clear_irq(struct iwl_trans *trans,
616 struct msix_entry *entry)
617 {
618 /*
619 * Before sending the interrupt the HW disables it to prevent
620 * a nested interrupt. This is done by writing 1 to the corresponding
621 * bit in the mask register. After handling the interrupt, it should be
622 * re-enabled by clearing this bit. This register is defined as
623 * write 1 clear (W1C) register, meaning that it's being clear
624 * by writing 1 to the bit.
625 */
626 iwl_write32(trans, CSR_MSIX_AUTOMASK_ST_AD, BIT(entry->entry));
627 }
628
629 static inline struct iwl_trans *
iwl_trans_pcie_get_trans(struct iwl_trans_pcie * trans_pcie)630 iwl_trans_pcie_get_trans(struct iwl_trans_pcie *trans_pcie)
631 {
632 return container_of((void *)trans_pcie, struct iwl_trans,
633 trans_specific);
634 }
635
636 /*
637 * Convention: trans API functions: iwl_trans_pcie_XXX
638 * Other functions: iwl_pcie_XXX
639 */
640 struct iwl_trans
641 *iwl_trans_pcie_alloc(struct pci_dev *pdev,
642 const struct pci_device_id *ent,
643 const struct iwl_cfg_trans_params *cfg_trans);
644 void iwl_trans_pcie_free(struct iwl_trans *trans);
645
646 /*****************************************************
647 * RX
648 ******************************************************/
649 int _iwl_pcie_rx_init(struct iwl_trans *trans);
650 int iwl_pcie_rx_init(struct iwl_trans *trans);
651 int iwl_pcie_gen2_rx_init(struct iwl_trans *trans);
652 irqreturn_t iwl_pcie_msix_isr(int irq, void *data);
653 irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id);
654 irqreturn_t iwl_pcie_irq_msix_handler(int irq, void *dev_id);
655 irqreturn_t iwl_pcie_irq_rx_msix_handler(int irq, void *dev_id);
656 int iwl_pcie_rx_stop(struct iwl_trans *trans);
657 void iwl_pcie_rx_free(struct iwl_trans *trans);
658 void iwl_pcie_free_rbs_pool(struct iwl_trans *trans);
659 void iwl_pcie_rx_init_rxb_lists(struct iwl_rxq *rxq);
660 int iwl_pcie_dummy_napi_poll(struct napi_struct *napi, int budget);
661 void iwl_pcie_rxq_alloc_rbs(struct iwl_trans *trans, gfp_t priority,
662 struct iwl_rxq *rxq);
663 int iwl_pcie_rx_alloc(struct iwl_trans *trans);
664
665 /*****************************************************
666 * ICT - interrupt handling
667 ******************************************************/
668 irqreturn_t iwl_pcie_isr(int irq, void *data);
669 int iwl_pcie_alloc_ict(struct iwl_trans *trans);
670 void iwl_pcie_free_ict(struct iwl_trans *trans);
671 void iwl_pcie_reset_ict(struct iwl_trans *trans);
672 void iwl_pcie_disable_ict(struct iwl_trans *trans);
673
674 /*****************************************************
675 * TX / HCMD
676 ******************************************************/
677 int iwl_pcie_tx_init(struct iwl_trans *trans);
678 int iwl_pcie_gen2_tx_init(struct iwl_trans *trans, int txq_id,
679 int queue_size);
680 void iwl_pcie_tx_start(struct iwl_trans *trans, u32 scd_base_addr);
681 int iwl_pcie_tx_stop(struct iwl_trans *trans);
682 void iwl_pcie_tx_free(struct iwl_trans *trans);
683 bool iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int queue, u16 ssn,
684 const struct iwl_trans_txq_scd_cfg *cfg,
685 unsigned int wdg_timeout);
686 void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int queue,
687 bool configure_scd);
688 void iwl_trans_pcie_txq_set_shared_mode(struct iwl_trans *trans, u32 txq_id,
689 bool shared_mode);
690 void iwl_trans_pcie_log_scd_error(struct iwl_trans *trans,
691 struct iwl_txq *txq);
692 int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
693 struct iwl_device_cmd *dev_cmd, int txq_id);
694 void iwl_pcie_txq_check_wrptrs(struct iwl_trans *trans);
695 int iwl_trans_pcie_send_hcmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd);
696 void iwl_pcie_cmdq_reclaim(struct iwl_trans *trans, int txq_id, int idx);
697 void iwl_pcie_gen2_txq_inc_wr_ptr(struct iwl_trans *trans,
698 struct iwl_txq *txq);
699 void iwl_pcie_hcmd_complete(struct iwl_trans *trans,
700 struct iwl_rx_cmd_buffer *rxb);
701 void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn,
702 struct sk_buff_head *skbs);
703 void iwl_trans_pcie_set_q_ptrs(struct iwl_trans *trans, int txq_id, int ptr);
704 void iwl_trans_pcie_tx_reset(struct iwl_trans *trans);
705 void iwl_pcie_gen2_update_byte_tbl(struct iwl_trans_pcie *trans_pcie,
706 struct iwl_txq *txq, u16 byte_cnt,
707 int num_tbs);
708
iwl_pcie_tfd_tb_get_len(struct iwl_trans * trans,void * _tfd,u8 idx)709 static inline u16 iwl_pcie_tfd_tb_get_len(struct iwl_trans *trans, void *_tfd,
710 u8 idx)
711 {
712 if (trans->trans_cfg->use_tfh) {
713 struct iwl_tfh_tfd *tfd = _tfd;
714 struct iwl_tfh_tb *tb = &tfd->tbs[idx];
715
716 return le16_to_cpu(tb->tb_len);
717 } else {
718 struct iwl_tfd *tfd = _tfd;
719 struct iwl_tfd_tb *tb = &tfd->tbs[idx];
720
721 return le16_to_cpu(tb->hi_n_len) >> 4;
722 }
723 }
724
725 /*****************************************************
726 * Error handling
727 ******************************************************/
728 void iwl_pcie_dump_csr(struct iwl_trans *trans);
729
730 /*****************************************************
731 * Helpers
732 ******************************************************/
_iwl_disable_interrupts(struct iwl_trans * trans)733 static inline void _iwl_disable_interrupts(struct iwl_trans *trans)
734 {
735 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
736
737 clear_bit(STATUS_INT_ENABLED, &trans->status);
738 if (!trans_pcie->msix_enabled) {
739 /* disable interrupts from uCode/NIC to host */
740 iwl_write32(trans, CSR_INT_MASK, 0x00000000);
741
742 /* acknowledge/clear/reset any interrupts still pending
743 * from uCode or flow handler (Rx/Tx DMA) */
744 iwl_write32(trans, CSR_INT, 0xffffffff);
745 iwl_write32(trans, CSR_FH_INT_STATUS, 0xffffffff);
746 } else {
747 /* disable all the interrupt we might use */
748 iwl_write32(trans, CSR_MSIX_FH_INT_MASK_AD,
749 trans_pcie->fh_init_mask);
750 iwl_write32(trans, CSR_MSIX_HW_INT_MASK_AD,
751 trans_pcie->hw_init_mask);
752 }
753 IWL_DEBUG_ISR(trans, "Disabled interrupts\n");
754 }
755
756 #define IWL_NUM_OF_COMPLETION_RINGS 31
757 #define IWL_NUM_OF_TRANSFER_RINGS 527
758
iwl_pcie_get_num_sections(const struct fw_img * fw,int start)759 static inline int iwl_pcie_get_num_sections(const struct fw_img *fw,
760 int start)
761 {
762 int i = 0;
763
764 while (start < fw->num_sec &&
765 fw->sec[start].offset != CPU1_CPU2_SEPARATOR_SECTION &&
766 fw->sec[start].offset != PAGING_SEPARATOR_SECTION) {
767 start++;
768 i++;
769 }
770
771 return i;
772 }
773
iwl_pcie_ctxt_info_alloc_dma(struct iwl_trans * trans,const struct fw_desc * sec,struct iwl_dram_data * dram)774 static inline int iwl_pcie_ctxt_info_alloc_dma(struct iwl_trans *trans,
775 const struct fw_desc *sec,
776 struct iwl_dram_data *dram)
777 {
778 dram->block = dma_alloc_coherent(trans->dev, sec->len,
779 &dram->physical,
780 GFP_KERNEL);
781 if (!dram->block)
782 return -ENOMEM;
783
784 dram->size = sec->len;
785 memcpy(dram->block, sec->data, sec->len);
786
787 return 0;
788 }
789
iwl_pcie_ctxt_info_free_fw_img(struct iwl_trans * trans)790 static inline void iwl_pcie_ctxt_info_free_fw_img(struct iwl_trans *trans)
791 {
792 struct iwl_self_init_dram *dram = &trans->init_dram;
793 int i;
794
795 if (!dram->fw) {
796 WARN_ON(dram->fw_cnt);
797 return;
798 }
799
800 for (i = 0; i < dram->fw_cnt; i++)
801 dma_free_coherent(trans->dev, dram->fw[i].size,
802 dram->fw[i].block, dram->fw[i].physical);
803
804 kfree(dram->fw);
805 dram->fw_cnt = 0;
806 dram->fw = NULL;
807 }
808
iwl_disable_interrupts(struct iwl_trans * trans)809 static inline void iwl_disable_interrupts(struct iwl_trans *trans)
810 {
811 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
812
813 spin_lock(&trans_pcie->irq_lock);
814 _iwl_disable_interrupts(trans);
815 spin_unlock(&trans_pcie->irq_lock);
816 }
817
_iwl_enable_interrupts(struct iwl_trans * trans)818 static inline void _iwl_enable_interrupts(struct iwl_trans *trans)
819 {
820 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
821
822 IWL_DEBUG_ISR(trans, "Enabling interrupts\n");
823 set_bit(STATUS_INT_ENABLED, &trans->status);
824 if (!trans_pcie->msix_enabled) {
825 trans_pcie->inta_mask = CSR_INI_SET_MASK;
826 iwl_write32(trans, CSR_INT_MASK, trans_pcie->inta_mask);
827 } else {
828 /*
829 * fh/hw_mask keeps all the unmasked causes.
830 * Unlike msi, in msix cause is enabled when it is unset.
831 */
832 trans_pcie->hw_mask = trans_pcie->hw_init_mask;
833 trans_pcie->fh_mask = trans_pcie->fh_init_mask;
834 iwl_write32(trans, CSR_MSIX_FH_INT_MASK_AD,
835 ~trans_pcie->fh_mask);
836 iwl_write32(trans, CSR_MSIX_HW_INT_MASK_AD,
837 ~trans_pcie->hw_mask);
838 }
839 }
840
iwl_enable_interrupts(struct iwl_trans * trans)841 static inline void iwl_enable_interrupts(struct iwl_trans *trans)
842 {
843 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
844
845 spin_lock(&trans_pcie->irq_lock);
846 _iwl_enable_interrupts(trans);
847 spin_unlock(&trans_pcie->irq_lock);
848 }
iwl_enable_hw_int_msk_msix(struct iwl_trans * trans,u32 msk)849 static inline void iwl_enable_hw_int_msk_msix(struct iwl_trans *trans, u32 msk)
850 {
851 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
852
853 iwl_write32(trans, CSR_MSIX_HW_INT_MASK_AD, ~msk);
854 trans_pcie->hw_mask = msk;
855 }
856
iwl_enable_fh_int_msk_msix(struct iwl_trans * trans,u32 msk)857 static inline void iwl_enable_fh_int_msk_msix(struct iwl_trans *trans, u32 msk)
858 {
859 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
860
861 iwl_write32(trans, CSR_MSIX_FH_INT_MASK_AD, ~msk);
862 trans_pcie->fh_mask = msk;
863 }
864
iwl_enable_fw_load_int(struct iwl_trans * trans)865 static inline void iwl_enable_fw_load_int(struct iwl_trans *trans)
866 {
867 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
868
869 IWL_DEBUG_ISR(trans, "Enabling FW load interrupt\n");
870 if (!trans_pcie->msix_enabled) {
871 trans_pcie->inta_mask = CSR_INT_BIT_FH_TX;
872 iwl_write32(trans, CSR_INT_MASK, trans_pcie->inta_mask);
873 } else {
874 iwl_write32(trans, CSR_MSIX_HW_INT_MASK_AD,
875 trans_pcie->hw_init_mask);
876 iwl_enable_fh_int_msk_msix(trans,
877 MSIX_FH_INT_CAUSES_D2S_CH0_NUM);
878 }
879 }
880
iwl_enable_fw_load_int_ctx_info(struct iwl_trans * trans)881 static inline void iwl_enable_fw_load_int_ctx_info(struct iwl_trans *trans)
882 {
883 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
884
885 IWL_DEBUG_ISR(trans, "Enabling ALIVE interrupt only\n");
886
887 if (!trans_pcie->msix_enabled) {
888 /*
889 * When we'll receive the ALIVE interrupt, the ISR will call
890 * iwl_enable_fw_load_int_ctx_info again to set the ALIVE
891 * interrupt (which is not really needed anymore) but also the
892 * RX interrupt which will allow us to receive the ALIVE
893 * notification (which is Rx) and continue the flow.
894 */
895 trans_pcie->inta_mask = CSR_INT_BIT_ALIVE | CSR_INT_BIT_FH_RX;
896 iwl_write32(trans, CSR_INT_MASK, trans_pcie->inta_mask);
897 } else {
898 iwl_enable_hw_int_msk_msix(trans,
899 MSIX_HW_INT_CAUSES_REG_ALIVE);
900 /*
901 * Leave all the FH causes enabled to get the ALIVE
902 * notification.
903 */
904 iwl_enable_fh_int_msk_msix(trans, trans_pcie->fh_init_mask);
905 }
906 }
907
iwl_pcie_get_cmd_index(const struct iwl_txq * q,u32 index)908 static inline u16 iwl_pcie_get_cmd_index(const struct iwl_txq *q, u32 index)
909 {
910 return index & (q->n_window - 1);
911 }
912
iwl_pcie_get_tfd(struct iwl_trans * trans,struct iwl_txq * txq,int idx)913 static inline void *iwl_pcie_get_tfd(struct iwl_trans *trans,
914 struct iwl_txq *txq, int idx)
915 {
916 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
917
918 if (trans->trans_cfg->use_tfh)
919 idx = iwl_pcie_get_cmd_index(txq, idx);
920
921 return txq->tfds + trans_pcie->tfd_size * idx;
922 }
923
queue_name(struct device * dev,struct iwl_trans_pcie * trans_p,int i)924 static inline const char *queue_name(struct device *dev,
925 struct iwl_trans_pcie *trans_p, int i)
926 {
927 if (trans_p->shared_vec_mask) {
928 int vec = trans_p->shared_vec_mask &
929 IWL_SHARED_IRQ_FIRST_RSS ? 1 : 0;
930
931 if (i == 0)
932 return DRV_NAME ": shared IRQ";
933
934 return devm_kasprintf(dev, GFP_KERNEL,
935 DRV_NAME ": queue %d", i + vec);
936 }
937 if (i == 0)
938 return DRV_NAME ": default queue";
939
940 if (i == trans_p->alloc_vecs - 1)
941 return DRV_NAME ": exception";
942
943 return devm_kasprintf(dev, GFP_KERNEL,
944 DRV_NAME ": queue %d", i);
945 }
946
iwl_enable_rfkill_int(struct iwl_trans * trans)947 static inline void iwl_enable_rfkill_int(struct iwl_trans *trans)
948 {
949 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
950
951 IWL_DEBUG_ISR(trans, "Enabling rfkill interrupt\n");
952 if (!trans_pcie->msix_enabled) {
953 trans_pcie->inta_mask = CSR_INT_BIT_RF_KILL;
954 iwl_write32(trans, CSR_INT_MASK, trans_pcie->inta_mask);
955 } else {
956 iwl_write32(trans, CSR_MSIX_FH_INT_MASK_AD,
957 trans_pcie->fh_init_mask);
958 iwl_enable_hw_int_msk_msix(trans,
959 MSIX_HW_INT_CAUSES_REG_RF_KILL);
960 }
961
962 if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) {
963 /*
964 * On 9000-series devices this bit isn't enabled by default, so
965 * when we power down the device we need set the bit to allow it
966 * to wake up the PCI-E bus for RF-kill interrupts.
967 */
968 iwl_set_bit(trans, CSR_GP_CNTRL,
969 CSR_GP_CNTRL_REG_FLAG_RFKILL_WAKE_L1A_EN);
970 }
971 }
972
973 void iwl_pcie_handle_rfkill_irq(struct iwl_trans *trans);
974
iwl_wake_queue(struct iwl_trans * trans,struct iwl_txq * txq)975 static inline void iwl_wake_queue(struct iwl_trans *trans,
976 struct iwl_txq *txq)
977 {
978 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
979
980 if (test_and_clear_bit(txq->id, trans_pcie->queue_stopped)) {
981 IWL_DEBUG_TX_QUEUES(trans, "Wake hwq %d\n", txq->id);
982 iwl_op_mode_queue_not_full(trans->op_mode, txq->id);
983 }
984 }
985
iwl_stop_queue(struct iwl_trans * trans,struct iwl_txq * txq)986 static inline void iwl_stop_queue(struct iwl_trans *trans,
987 struct iwl_txq *txq)
988 {
989 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
990
991 if (!test_and_set_bit(txq->id, trans_pcie->queue_stopped)) {
992 iwl_op_mode_queue_full(trans->op_mode, txq->id);
993 IWL_DEBUG_TX_QUEUES(trans, "Stop hwq %d\n", txq->id);
994 } else
995 IWL_DEBUG_TX_QUEUES(trans, "hwq %d already stopped\n",
996 txq->id);
997 }
998
iwl_queue_used(const struct iwl_txq * q,int i)999 static inline bool iwl_queue_used(const struct iwl_txq *q, int i)
1000 {
1001 int index = iwl_pcie_get_cmd_index(q, i);
1002 int r = iwl_pcie_get_cmd_index(q, q->read_ptr);
1003 int w = iwl_pcie_get_cmd_index(q, q->write_ptr);
1004
1005 return w >= r ?
1006 (index >= r && index < w) :
1007 !(index < r && index >= w);
1008 }
1009
iwl_is_rfkill_set(struct iwl_trans * trans)1010 static inline bool iwl_is_rfkill_set(struct iwl_trans *trans)
1011 {
1012 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
1013
1014 lockdep_assert_held(&trans_pcie->mutex);
1015
1016 if (trans_pcie->debug_rfkill == 1)
1017 return true;
1018
1019 return !(iwl_read32(trans, CSR_GP_CNTRL) &
1020 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW);
1021 }
1022
__iwl_trans_pcie_set_bits_mask(struct iwl_trans * trans,u32 reg,u32 mask,u32 value)1023 static inline void __iwl_trans_pcie_set_bits_mask(struct iwl_trans *trans,
1024 u32 reg, u32 mask, u32 value)
1025 {
1026 u32 v;
1027
1028 #ifdef CONFIG_IWLWIFI_DEBUG
1029 WARN_ON_ONCE(value & ~mask);
1030 #endif
1031
1032 v = iwl_read32(trans, reg);
1033 v &= ~mask;
1034 v |= value;
1035 iwl_write32(trans, reg, v);
1036 }
1037
__iwl_trans_pcie_clear_bit(struct iwl_trans * trans,u32 reg,u32 mask)1038 static inline void __iwl_trans_pcie_clear_bit(struct iwl_trans *trans,
1039 u32 reg, u32 mask)
1040 {
1041 __iwl_trans_pcie_set_bits_mask(trans, reg, mask, 0);
1042 }
1043
__iwl_trans_pcie_set_bit(struct iwl_trans * trans,u32 reg,u32 mask)1044 static inline void __iwl_trans_pcie_set_bit(struct iwl_trans *trans,
1045 u32 reg, u32 mask)
1046 {
1047 __iwl_trans_pcie_set_bits_mask(trans, reg, mask, mask);
1048 }
1049
iwl_pcie_dbg_on(struct iwl_trans * trans)1050 static inline bool iwl_pcie_dbg_on(struct iwl_trans *trans)
1051 {
1052 return (trans->dbg.dest_tlv || iwl_trans_dbg_ini_valid(trans));
1053 }
1054
1055 void iwl_trans_pcie_rf_kill(struct iwl_trans *trans, bool state);
1056 void iwl_trans_pcie_dump_regs(struct iwl_trans *trans);
1057 void iwl_trans_pcie_sync_nmi(struct iwl_trans *trans);
1058
1059 #ifdef CONFIG_IWLWIFI_DEBUGFS
1060 void iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans);
1061 #else
iwl_trans_pcie_dbgfs_register(struct iwl_trans * trans)1062 static inline void iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans) { }
1063 #endif
1064
1065 void iwl_pcie_rx_allocator_work(struct work_struct *data);
1066
1067 /* common functions that are used by gen2 transport */
1068 int iwl_pcie_gen2_apm_init(struct iwl_trans *trans);
1069 void iwl_pcie_apm_config(struct iwl_trans *trans);
1070 int iwl_pcie_prepare_card_hw(struct iwl_trans *trans);
1071 void iwl_pcie_synchronize_irqs(struct iwl_trans *trans);
1072 bool iwl_pcie_check_hw_rf_kill(struct iwl_trans *trans);
1073 void iwl_trans_pcie_handle_stop_rfkill(struct iwl_trans *trans,
1074 bool was_in_rfkill);
1075 void iwl_pcie_txq_free_tfd(struct iwl_trans *trans, struct iwl_txq *txq);
1076 int iwl_queue_space(struct iwl_trans *trans, const struct iwl_txq *q);
1077 void iwl_pcie_apm_stop_master(struct iwl_trans *trans);
1078 void iwl_pcie_conf_msix_hw(struct iwl_trans_pcie *trans_pcie);
1079 int iwl_pcie_txq_init(struct iwl_trans *trans, struct iwl_txq *txq,
1080 int slots_num, bool cmd_queue);
1081 int iwl_pcie_txq_alloc(struct iwl_trans *trans,
1082 struct iwl_txq *txq, int slots_num, bool cmd_queue);
1083 int iwl_pcie_alloc_dma_ptr(struct iwl_trans *trans,
1084 struct iwl_dma_ptr *ptr, size_t size);
1085 void iwl_pcie_free_dma_ptr(struct iwl_trans *trans, struct iwl_dma_ptr *ptr);
1086 void iwl_pcie_apply_destination(struct iwl_trans *trans);
1087 void iwl_pcie_free_tso_page(struct iwl_trans_pcie *trans_pcie,
1088 struct sk_buff *skb);
1089 #ifdef CONFIG_INET
1090 struct iwl_tso_hdr_page *get_page_hdr(struct iwl_trans *trans, size_t len);
1091 #endif
1092
1093 /* common functions that are used by gen3 transport */
1094 void iwl_pcie_alloc_fw_monitor(struct iwl_trans *trans, u8 max_power);
1095
1096 /* transport gen 2 exported functions */
1097 int iwl_trans_pcie_gen2_start_fw(struct iwl_trans *trans,
1098 const struct fw_img *fw, bool run_in_rfkill);
1099 void iwl_trans_pcie_gen2_fw_alive(struct iwl_trans *trans, u32 scd_addr);
1100 void iwl_pcie_gen2_txq_free_memory(struct iwl_trans *trans,
1101 struct iwl_txq *txq);
1102 int iwl_trans_pcie_dyn_txq_alloc_dma(struct iwl_trans *trans,
1103 struct iwl_txq **intxq, int size,
1104 unsigned int timeout);
1105 int iwl_trans_pcie_txq_alloc_response(struct iwl_trans *trans,
1106 struct iwl_txq *txq,
1107 struct iwl_host_cmd *hcmd);
1108 int iwl_trans_pcie_dyn_txq_alloc(struct iwl_trans *trans,
1109 __le16 flags, u8 sta_id, u8 tid,
1110 int cmd_id, int size,
1111 unsigned int timeout);
1112 void iwl_trans_pcie_dyn_txq_free(struct iwl_trans *trans, int queue);
1113 int iwl_trans_pcie_gen2_tx(struct iwl_trans *trans, struct sk_buff *skb,
1114 struct iwl_device_cmd *dev_cmd, int txq_id);
1115 int iwl_trans_pcie_gen2_send_hcmd(struct iwl_trans *trans,
1116 struct iwl_host_cmd *cmd);
1117 void iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans);
1118 void _iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans);
1119 void iwl_pcie_gen2_txq_unmap(struct iwl_trans *trans, int txq_id);
1120 void iwl_pcie_gen2_tx_free(struct iwl_trans *trans);
1121 void iwl_pcie_gen2_tx_stop(struct iwl_trans *trans);
1122 void iwl_pcie_d3_complete_suspend(struct iwl_trans *trans,
1123 bool test, bool reset);
1124 #endif /* __iwl_trans_int_pcie_h__ */
1125