Merge tag 'gcc-plugins-v4.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
[cascardo/linux.git] / drivers / net / ethernet / qlogic / qed / qed.h
1 /* QLogic qed NIC Driver
2  * Copyright (c) 2015 QLogic Corporation
3  *
4  * This software is available under the terms of the GNU General Public License
5  * (GPL) Version 2, available from the file COPYING in the main directory of
6  * this source tree.
7  */
8
9 #ifndef _QED_H
10 #define _QED_H
11
12 #include <linux/types.h>
13 #include <linux/io.h>
14 #include <linux/delay.h>
15 #include <linux/firmware.h>
16 #include <linux/interrupt.h>
17 #include <linux/list.h>
18 #include <linux/mutex.h>
19 #include <linux/pci.h>
20 #include <linux/slab.h>
21 #include <linux/string.h>
22 #include <linux/workqueue.h>
23 #include <linux/zlib.h>
24 #include <linux/hashtable.h>
25 #include <linux/qed/qed_if.h>
26 #include "qed_debug.h"
27 #include "qed_hsi.h"
28
29 extern const struct qed_common_ops qed_common_ops_pass;
30 #define DRV_MODULE_VERSION "8.10.9.20"
31
32 #define MAX_HWFNS_PER_DEVICE    (4)
33 #define NAME_SIZE 16
34 #define VER_SIZE 16
35
36 #define QED_WFQ_UNIT    100
37
38 #define QED_WID_SIZE            (1024)
39 #define QED_PF_DEMS_SIZE        (4)
40
41 /* cau states */
42 enum qed_coalescing_mode {
43         QED_COAL_MODE_DISABLE,
44         QED_COAL_MODE_ENABLE
45 };
46
47 struct qed_eth_cb_ops;
48 struct qed_dev_info;
49 union qed_mcp_protocol_stats;
50 enum qed_mcp_protocol_type;
51
52 /* helpers */
53 static inline u32 qed_db_addr(u32 cid, u32 DEMS)
54 {
55         u32 db_addr = FIELD_VALUE(DB_LEGACY_ADDR_DEMS, DEMS) |
56                       (cid * QED_PF_DEMS_SIZE);
57
58         return db_addr;
59 }
60
61 static inline u32 qed_db_addr_vf(u32 cid, u32 DEMS)
62 {
63         u32 db_addr = FIELD_VALUE(DB_LEGACY_ADDR_DEMS, DEMS) |
64                       FIELD_VALUE(DB_LEGACY_ADDR_ICID, cid);
65
66         return db_addr;
67 }
68
69 #define ALIGNED_TYPE_SIZE(type_name, p_hwfn)                                 \
70         ((sizeof(type_name) + (u32)(1 << (p_hwfn->cdev->cache_shift)) - 1) & \
71          ~((1 << (p_hwfn->cdev->cache_shift)) - 1))
72
73 #define for_each_hwfn(cdev, i)  for (i = 0; i < cdev->num_hwfns; i++)
74
75 #define D_TRINE(val, cond1, cond2, true1, true2, def) \
76         (val == (cond1) ? true1 :                     \
77          (val == (cond2) ? true2 : def))
78
79 /* forward */
80 struct qed_ptt_pool;
81 struct qed_spq;
82 struct qed_sb_info;
83 struct qed_sb_attn_info;
84 struct qed_cxt_mngr;
85 struct qed_sb_sp_info;
86 struct qed_ll2_info;
87 struct qed_mcp_info;
88
89 struct qed_rt_data {
90         u32     *init_val;
91         bool    *b_valid;
92 };
93
94 enum qed_tunn_mode {
95         QED_MODE_L2GENEVE_TUNN,
96         QED_MODE_IPGENEVE_TUNN,
97         QED_MODE_L2GRE_TUNN,
98         QED_MODE_IPGRE_TUNN,
99         QED_MODE_VXLAN_TUNN,
100 };
101
102 enum qed_tunn_clss {
103         QED_TUNN_CLSS_MAC_VLAN,
104         QED_TUNN_CLSS_MAC_VNI,
105         QED_TUNN_CLSS_INNER_MAC_VLAN,
106         QED_TUNN_CLSS_INNER_MAC_VNI,
107         MAX_QED_TUNN_CLSS,
108 };
109
110 struct qed_tunn_start_params {
111         unsigned long   tunn_mode;
112         u16             vxlan_udp_port;
113         u16             geneve_udp_port;
114         u8              update_vxlan_udp_port;
115         u8              update_geneve_udp_port;
116         u8              tunn_clss_vxlan;
117         u8              tunn_clss_l2geneve;
118         u8              tunn_clss_ipgeneve;
119         u8              tunn_clss_l2gre;
120         u8              tunn_clss_ipgre;
121 };
122
123 struct qed_tunn_update_params {
124         unsigned long   tunn_mode_update_mask;
125         unsigned long   tunn_mode;
126         u16             vxlan_udp_port;
127         u16             geneve_udp_port;
128         u8              update_rx_pf_clss;
129         u8              update_tx_pf_clss;
130         u8              update_vxlan_udp_port;
131         u8              update_geneve_udp_port;
132         u8              tunn_clss_vxlan;
133         u8              tunn_clss_l2geneve;
134         u8              tunn_clss_ipgeneve;
135         u8              tunn_clss_l2gre;
136         u8              tunn_clss_ipgre;
137 };
138
139 /* The PCI personality is not quite synonymous to protocol ID:
140  * 1. All personalities need CORE connections
141  * 2. The Ethernet personality may support also the RoCE protocol
142  */
143 enum qed_pci_personality {
144         QED_PCI_ETH,
145         QED_PCI_ISCSI,
146         QED_PCI_ETH_ROCE,
147         QED_PCI_DEFAULT /* default in shmem */
148 };
149
150 /* All VFs are symmetric, all counters are PF + all VFs */
151 struct qed_qm_iids {
152         u32 cids;
153         u32 vf_cids;
154         u32 tids;
155 };
156
157 enum QED_RESOURCES {
158         QED_SB,
159         QED_L2_QUEUE,
160         QED_VPORT,
161         QED_RSS_ENG,
162         QED_PQ,
163         QED_RL,
164         QED_MAC,
165         QED_VLAN,
166         QED_RDMA_CNQ_RAM,
167         QED_ILT,
168         QED_LL2_QUEUE,
169         QED_RDMA_STATS_QUEUE,
170         QED_MAX_RESC,
171 };
172
173 enum QED_FEATURE {
174         QED_PF_L2_QUE,
175         QED_VF,
176         QED_RDMA_CNQ,
177         QED_MAX_FEATURES,
178 };
179
180 enum QED_PORT_MODE {
181         QED_PORT_MODE_DE_2X40G,
182         QED_PORT_MODE_DE_2X50G,
183         QED_PORT_MODE_DE_1X100G,
184         QED_PORT_MODE_DE_4X10G_F,
185         QED_PORT_MODE_DE_4X10G_E,
186         QED_PORT_MODE_DE_4X20G,
187         QED_PORT_MODE_DE_1X40G,
188         QED_PORT_MODE_DE_2X25G,
189         QED_PORT_MODE_DE_1X25G
190 };
191
192 enum qed_dev_cap {
193         QED_DEV_CAP_ETH,
194         QED_DEV_CAP_ISCSI,
195         QED_DEV_CAP_ROCE,
196 };
197
198 struct qed_hw_info {
199         /* PCI personality */
200         enum qed_pci_personality        personality;
201
202         /* Resource Allocation scheme results */
203         u32                             resc_start[QED_MAX_RESC];
204         u32                             resc_num[QED_MAX_RESC];
205         u32                             feat_num[QED_MAX_FEATURES];
206
207 #define RESC_START(_p_hwfn, resc) ((_p_hwfn)->hw_info.resc_start[resc])
208 #define RESC_NUM(_p_hwfn, resc) ((_p_hwfn)->hw_info.resc_num[resc])
209 #define RESC_END(_p_hwfn, resc) (RESC_START(_p_hwfn, resc) + \
210                                  RESC_NUM(_p_hwfn, resc))
211 #define FEAT_NUM(_p_hwfn, resc) ((_p_hwfn)->hw_info.feat_num[resc])
212
213         u8                              num_tc;
214         u8                              offload_tc;
215         u8                              non_offload_tc;
216
217         u32                             concrete_fid;
218         u16                             opaque_fid;
219         u16                             ovlan;
220         u32                             part_num[4];
221
222         unsigned char                   hw_mac_addr[ETH_ALEN];
223
224         struct qed_igu_info             *p_igu_info;
225
226         u32                             port_mode;
227         u32                             hw_mode;
228         unsigned long           device_capabilities;
229 };
230
231 struct qed_hw_cid_data {
232         u32     cid;
233         bool    b_cid_allocated;
234
235         /* Additional identifiers */
236         u16     opaque_fid;
237         u8      vport_id;
238 };
239
240 /* maximun size of read/write commands (HW limit) */
241 #define DMAE_MAX_RW_SIZE        0x2000
242
243 struct qed_dmae_info {
244         /* Mutex for synchronizing access to functions */
245         struct mutex    mutex;
246
247         u8              channel;
248
249         dma_addr_t      completion_word_phys_addr;
250
251         /* The memory location where the DMAE writes the completion
252          * value when an operation is finished on this context.
253          */
254         u32             *p_completion_word;
255
256         dma_addr_t      intermediate_buffer_phys_addr;
257
258         /* An intermediate buffer for DMAE operations that use virtual
259          * addresses - data is DMA'd to/from this buffer and then
260          * memcpy'd to/from the virtual address
261          */
262         u32             *p_intermediate_buffer;
263
264         dma_addr_t      dmae_cmd_phys_addr;
265         struct dmae_cmd *p_dmae_cmd;
266 };
267
268 struct qed_wfq_data {
269         /* when feature is configured for at least 1 vport */
270         u32     min_speed;
271         bool    configured;
272 };
273
274 struct qed_qm_info {
275         struct init_qm_pq_params        *qm_pq_params;
276         struct init_qm_vport_params     *qm_vport_params;
277         struct init_qm_port_params      *qm_port_params;
278         u16                             start_pq;
279         u8                              start_vport;
280         u8                              pure_lb_pq;
281         u8                              offload_pq;
282         u8                              pure_ack_pq;
283         u8 ooo_pq;
284         u8                              vf_queues_offset;
285         u16                             num_pqs;
286         u16                             num_vf_pqs;
287         u8                              num_vports;
288         u8                              max_phys_tcs_per_port;
289         bool                            pf_rl_en;
290         bool                            pf_wfq_en;
291         bool                            vport_rl_en;
292         bool                            vport_wfq_en;
293         u8                              pf_wfq;
294         u32                             pf_rl;
295         struct qed_wfq_data             *wfq_data;
296         u8 num_pf_rls;
297 };
298
299 struct storm_stats {
300         u32     address;
301         u32     len;
302 };
303
304 struct qed_storm_stats {
305         struct storm_stats mstats;
306         struct storm_stats pstats;
307         struct storm_stats tstats;
308         struct storm_stats ustats;
309 };
310
311 struct qed_fw_data {
312         struct fw_ver_info      *fw_ver_info;
313         const u8                *modes_tree_buf;
314         union init_op           *init_ops;
315         const u32               *arr_data;
316         u32                     init_ops_size;
317 };
318
319 struct qed_simd_fp_handler {
320         void    *token;
321         void    (*func)(void *);
322 };
323
324 struct qed_hwfn {
325         struct qed_dev                  *cdev;
326         u8                              my_id;          /* ID inside the PF */
327 #define IS_LEAD_HWFN(edev)              (!((edev)->my_id))
328         u8                              rel_pf_id;      /* Relative to engine*/
329         u8                              abs_pf_id;
330 #define QED_PATH_ID(_p_hwfn)            ((_p_hwfn)->abs_pf_id & 1)
331         u8                              port_id;
332         bool                            b_active;
333
334         u32                             dp_module;
335         u8                              dp_level;
336         char                            name[NAME_SIZE];
337
338         bool                            first_on_engine;
339         bool                            hw_init_done;
340
341         u8                              num_funcs_on_engine;
342         u8 enabled_func_idx;
343
344         /* BAR access */
345         void __iomem                    *regview;
346         void __iomem                    *doorbells;
347         u64                             db_phys_addr;
348         unsigned long                   db_size;
349
350         /* PTT pool */
351         struct qed_ptt_pool             *p_ptt_pool;
352
353         /* HW info */
354         struct qed_hw_info              hw_info;
355
356         /* rt_array (for init-tool) */
357         struct qed_rt_data              rt_data;
358
359         /* SPQ */
360         struct qed_spq                  *p_spq;
361
362         /* EQ */
363         struct qed_eq                   *p_eq;
364
365         /* Consolidate Q*/
366         struct qed_consq                *p_consq;
367
368         /* Slow-Path definitions */
369         struct tasklet_struct           *sp_dpc;
370         bool                            b_sp_dpc_enabled;
371
372         struct qed_ptt                  *p_main_ptt;
373         struct qed_ptt                  *p_dpc_ptt;
374
375         struct qed_sb_sp_info           *p_sp_sb;
376         struct qed_sb_attn_info         *p_sb_attn;
377
378         /* Protocol related */
379         bool                            using_ll2;
380         struct qed_ll2_info             *p_ll2_info;
381         struct qed_rdma_info            *p_rdma_info;
382         struct qed_pf_params            pf_params;
383
384         bool b_rdma_enabled_in_prs;
385         u32 rdma_prs_search_reg;
386
387         /* Array of sb_info of all status blocks */
388         struct qed_sb_info              *sbs_info[MAX_SB_PER_PF_MIMD];
389         u16                             num_sbs;
390
391         struct qed_cxt_mngr             *p_cxt_mngr;
392
393         /* Flag indicating whether interrupts are enabled or not*/
394         bool                            b_int_enabled;
395         bool                            b_int_requested;
396
397         /* True if the driver requests for the link */
398         bool                            b_drv_link_init;
399
400         struct qed_vf_iov               *vf_iov_info;
401         struct qed_pf_iov               *pf_iov_info;
402         struct qed_mcp_info             *mcp_info;
403
404         struct qed_dcbx_info            *p_dcbx_info;
405
406         struct qed_hw_cid_data          *p_tx_cids;
407         struct qed_hw_cid_data          *p_rx_cids;
408
409         struct qed_dmae_info            dmae_info;
410
411         /* QM init */
412         struct qed_qm_info              qm_info;
413         struct qed_storm_stats          storm_stats;
414
415         /* Buffer for unzipping firmware data */
416         void                            *unzip_buf;
417
418         struct dbg_tools_data           dbg_info;
419
420         /* PWM region specific data */
421         u32                             dpi_size;
422         u32                             dpi_count;
423
424         /* This is used to calculate the doorbell address */
425         u32 dpi_start_offset;
426
427         /* If one of the following is set then EDPM shouldn't be used */
428         u8 dcbx_no_edpm;
429         u8 db_bar_no_edpm;
430
431         struct qed_simd_fp_handler      simd_proto_handler[64];
432
433 #ifdef CONFIG_QED_SRIOV
434         struct workqueue_struct *iov_wq;
435         struct delayed_work iov_task;
436         unsigned long iov_task_flags;
437 #endif
438
439         struct z_stream_s               *stream;
440         struct qed_roce_ll2_info        *ll2;
441 };
442
443 struct pci_params {
444         int             pm_cap;
445
446         unsigned long   mem_start;
447         unsigned long   mem_end;
448         unsigned int    irq;
449         u8              pf_num;
450 };
451
452 struct qed_int_param {
453         u32     int_mode;
454         u8      num_vectors;
455         u8      min_msix_cnt; /* for minimal functionality */
456 };
457
458 struct qed_int_params {
459         struct qed_int_param    in;
460         struct qed_int_param    out;
461         struct msix_entry       *msix_table;
462         bool                    fp_initialized;
463         u8                      fp_msix_base;
464         u8                      fp_msix_cnt;
465         u8                      rdma_msix_base;
466         u8                      rdma_msix_cnt;
467 };
468
469 struct qed_dbg_feature {
470         struct dentry *dentry;
471         u8 *dump_buf;
472         u32 buf_size;
473         u32 dumped_dwords;
474 };
475
476 struct qed_dbg_params {
477         struct qed_dbg_feature features[DBG_FEATURE_NUM];
478         u8 engine_for_debug;
479         bool print_data;
480 };
481
482 struct qed_dev {
483         u32     dp_module;
484         u8      dp_level;
485         char    name[NAME_SIZE];
486
487         u8      type;
488 #define QED_DEV_TYPE_BB (0 << 0)
489 #define QED_DEV_TYPE_AH BIT(0)
490 /* Translate type/revision combo into the proper conditions */
491 #define QED_IS_BB(dev)  ((dev)->type == QED_DEV_TYPE_BB)
492 #define QED_IS_BB_A0(dev)       (QED_IS_BB(dev) && \
493                                  CHIP_REV_IS_A0(dev))
494 #define QED_IS_BB_B0(dev)       (QED_IS_BB(dev) && \
495                                  CHIP_REV_IS_B0(dev))
496 #define QED_IS_AH(dev)  ((dev)->type == QED_DEV_TYPE_AH)
497 #define QED_IS_K2(dev)  QED_IS_AH(dev)
498
499 #define QED_GET_TYPE(dev)       (QED_IS_BB_A0(dev) ? CHIP_BB_A0 : \
500                                  QED_IS_BB_B0(dev) ? CHIP_BB_B0 : CHIP_K2)
501
502         u16     vendor_id;
503         u16     device_id;
504
505         u16     chip_num;
506 #define CHIP_NUM_MASK                   0xffff
507 #define CHIP_NUM_SHIFT                  16
508
509         u16     chip_rev;
510 #define CHIP_REV_MASK                   0xf
511 #define CHIP_REV_SHIFT                  12
512 #define CHIP_REV_IS_A0(_cdev)   (!(_cdev)->chip_rev)
513 #define CHIP_REV_IS_B0(_cdev)   ((_cdev)->chip_rev == 1)
514
515         u16                             chip_metal;
516 #define CHIP_METAL_MASK                 0xff
517 #define CHIP_METAL_SHIFT                4
518
519         u16                             chip_bond_id;
520 #define CHIP_BOND_ID_MASK               0xf
521 #define CHIP_BOND_ID_SHIFT              0
522
523         u8                              num_engines;
524         u8                              num_ports_in_engines;
525         u8                              num_funcs_in_port;
526
527         u8                              path_id;
528         enum qed_mf_mode                mf_mode;
529 #define IS_MF_DEFAULT(_p_hwfn)  (((_p_hwfn)->cdev)->mf_mode == QED_MF_DEFAULT)
530 #define IS_MF_SI(_p_hwfn)       (((_p_hwfn)->cdev)->mf_mode == QED_MF_NPAR)
531 #define IS_MF_SD(_p_hwfn)       (((_p_hwfn)->cdev)->mf_mode == QED_MF_OVLAN)
532
533         int                             pcie_width;
534         int                             pcie_speed;
535         u8                              ver_str[VER_SIZE];
536
537         /* Add MF related configuration */
538         u8                              mcp_rev;
539         u8                              boot_mode;
540
541         u8                              wol;
542
543         u32                             int_mode;
544         enum qed_coalescing_mode        int_coalescing_mode;
545         u16                             rx_coalesce_usecs;
546         u16                             tx_coalesce_usecs;
547
548         /* Start Bar offset of first hwfn */
549         void __iomem                    *regview;
550         void __iomem                    *doorbells;
551         u64                             db_phys_addr;
552         unsigned long                   db_size;
553
554         /* PCI */
555         u8                              cache_shift;
556
557         /* Init */
558         const struct iro                *iro_arr;
559 #define IRO (p_hwfn->cdev->iro_arr)
560
561         /* HW functions */
562         u8                              num_hwfns;
563         struct qed_hwfn                 hwfns[MAX_HWFNS_PER_DEVICE];
564
565         /* SRIOV */
566         struct qed_hw_sriov_info *p_iov_info;
567 #define IS_QED_SRIOV(cdev)              (!!(cdev)->p_iov_info)
568
569         unsigned long                   tunn_mode;
570
571         bool                            b_is_vf;
572         u32                             drv_type;
573         struct qed_eth_stats            *reset_stats;
574         struct qed_fw_data              *fw_data;
575
576         u32                             mcp_nvm_resp;
577
578         /* Linux specific here */
579         struct  qede_dev                *edev;
580         struct  pci_dev                 *pdev;
581         int                             msg_enable;
582
583         struct pci_params               pci_params;
584
585         struct qed_int_params           int_params;
586
587         u8                              protocol;
588 #define IS_QED_ETH_IF(cdev)     ((cdev)->protocol == QED_PROTOCOL_ETH)
589
590         /* Callbacks to protocol driver */
591         union {
592                 struct qed_common_cb_ops        *common;
593                 struct qed_eth_cb_ops           *eth;
594         } protocol_ops;
595         void                            *ops_cookie;
596
597         struct qed_dbg_params           dbg_params;
598
599 #ifdef CONFIG_QED_LL2
600         struct qed_cb_ll2_info          *ll2;
601         u8                              ll2_mac_address[ETH_ALEN];
602 #endif
603
604         const struct firmware           *firmware;
605
606         u32 rdma_max_sge;
607         u32 rdma_max_inline;
608         u32 rdma_max_srq_sge;
609 };
610
611 #define NUM_OF_VFS(dev)         MAX_NUM_VFS_BB
612 #define NUM_OF_L2_QUEUES(dev)   MAX_NUM_L2_QUEUES_BB
613 #define NUM_OF_SBS(dev)         MAX_SB_PER_PATH_BB
614 #define NUM_OF_ENG_PFS(dev)     MAX_NUM_PFS_BB
615
616 /**
617  * @brief qed_concrete_to_sw_fid - get the sw function id from
618  *        the concrete value.
619  *
620  * @param concrete_fid
621  *
622  * @return inline u8
623  */
624 static inline u8 qed_concrete_to_sw_fid(struct qed_dev *cdev,
625                                         u32 concrete_fid)
626 {
627         u8 vfid = GET_FIELD(concrete_fid, PXP_CONCRETE_FID_VFID);
628         u8 pfid = GET_FIELD(concrete_fid, PXP_CONCRETE_FID_PFID);
629         u8 vf_valid = GET_FIELD(concrete_fid,
630                                 PXP_CONCRETE_FID_VFVALID);
631         u8 sw_fid;
632
633         if (vf_valid)
634                 sw_fid = vfid + MAX_NUM_PFS;
635         else
636                 sw_fid = pfid;
637
638         return sw_fid;
639 }
640
641 #define PURE_LB_TC 8
642 #define OOO_LB_TC 9
643
644 int qed_configure_vport_wfq(struct qed_dev *cdev, u16 vp_id, u32 rate);
645 void qed_configure_vp_wfq_on_link_change(struct qed_dev *cdev, u32 min_pf_rate);
646
647 void qed_clean_wfq_db(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
648 #define QED_LEADING_HWFN(dev)   (&dev->hwfns[0])
649
650 /* Other Linux specific common definitions */
651 #define DP_NAME(cdev) ((cdev)->name)
652
653 #define REG_ADDR(cdev, offset)          (void __iomem *)((u8 __iomem *)\
654                                                 (cdev->regview) + \
655                                                          (offset))
656
657 #define REG_RD(cdev, offset)            readl(REG_ADDR(cdev, offset))
658 #define REG_WR(cdev, offset, val)       writel((u32)val, REG_ADDR(cdev, offset))
659 #define REG_WR16(cdev, offset, val)     writew((u16)val, REG_ADDR(cdev, offset))
660
661 #define DOORBELL(cdev, db_addr, val)                     \
662         writel((u32)val, (void __iomem *)((u8 __iomem *)\
663                                           (cdev->doorbells) + (db_addr)))
664
665 /* Prototypes */
666 int qed_fill_dev_info(struct qed_dev *cdev,
667                       struct qed_dev_info *dev_info);
668 void qed_link_update(struct qed_hwfn *hwfn);
669 u32 qed_unzip_data(struct qed_hwfn *p_hwfn,
670                    u32 input_len, u8 *input_buf,
671                    u32 max_size, u8 *unzip_buf);
672 void qed_get_protocol_stats(struct qed_dev *cdev,
673                             enum qed_mcp_protocol_type type,
674                             union qed_mcp_protocol_stats *stats);
675 int qed_slowpath_irq_req(struct qed_hwfn *hwfn);
676
677 #endif /* _QED_H */