drivers/net/wireless/ath/wil6210/wil6210.h

   1 /*
   2  * Copyright (c) 2012-2015 Qualcomm Atheros, Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef __WIL6210_H__
  18 #define __WIL6210_H__
  19
  20 #include <linux/netdevice.h>
  21 #include <linux/wireless.h>
  22 #include <net/cfg80211.h>
  23 #include <linux/timex.h>
  24 #include <linux/types.h>
  25 #include "wil_platform.h"
  26
  27 extern bool no_fw_recovery;
  28 extern unsigned int mtu_max;
  29 extern unsigned short rx_ring_overflow_thrsh;
  30 extern int agg_wsize;
  31 extern u32 vring_idle_trsh;
  32 extern bool rx_align_2;
  33 extern bool debug_fw;
  34
  35 #define WIL_NAME "wil6210"
  36 #define WIL_FW_NAME "wil6210.fw" /* code */
  37 #define WIL_FW2_NAME "wil6210.brd" /* board & radio parameters */
  38
  39 #define WIL_MAX_BUS_REQUEST_KBPS 800000 /* ~6.1Gbps */
  40
  41 /**
  42  * extract bits [@b0:@b1] (inclusive) from the value @x
  43  * it should be @b0 <= @b1, or result is incorrect
  44  */
  45 static inline u32 WIL_GET_BITS(u32 x, int b0, int b1)
  46 {
  47         return (x >> b0) & ((1 << (b1 - b0 + 1)) - 1);
  48 }
  49
  50 #define WIL6210_MEM_SIZE (2*1024*1024UL)
  51
  52 #define WIL_TX_Q_LEN_DEFAULT            (4000)
  53 #define WIL_RX_RING_SIZE_ORDER_DEFAULT  (10)
  54 #define WIL_TX_RING_SIZE_ORDER_DEFAULT  (10)
  55 #define WIL_BCAST_RING_SIZE_ORDER_DEFAULT       (7)
  56 #define WIL_BCAST_MCS0_LIMIT            (1024) /* limit for MCS0 frame size */
  57 /* limit ring size in range [32..32k] */
  58 #define WIL_RING_SIZE_ORDER_MIN (5)
  59 #define WIL_RING_SIZE_ORDER_MAX (15)
  60 #define WIL6210_MAX_TX_RINGS    (24) /* HW limit */
  61 #define WIL6210_MAX_CID         (8) /* HW limit */
  62 #define WIL6210_NAPI_BUDGET     (16) /* arbitrary */
  63 #define WIL_MAX_AMPDU_SIZE      (64 * 1024) /* FW/HW limit */
  64 #define WIL_MAX_AGG_WSIZE       (32) /* FW/HW limit */
  65 /* Hardware offload block adds the following:
  66  * 26 bytes - 3-address QoS data header
  67  *  8 bytes - IV + EIV (for GCMP)
  68  *  8 bytes - SNAP
  69  * 16 bytes - MIC (for GCMP)
  70  *  4 bytes - CRC
  71  */
  72 #define WIL_MAX_MPDU_OVERHEAD   (62)
  73
  74 /* Calculate MAC buffer size for the firmware. It includes all overhead,
  75  * as it will go over the air, and need to be 8 byte aligned
  76  */
  77 static inline u32 wil_mtu2macbuf(u32 mtu)
  78 {
  79         return ALIGN(mtu + WIL_MAX_MPDU_OVERHEAD, 8);
  80 }
  81
  82 /* MTU for Ethernet need to take into account 8-byte SNAP header
  83  * to be added when encapsulating Ethernet frame into 802.11
  84  */
  85 #define WIL_MAX_ETH_MTU         (IEEE80211_MAX_DATA_LEN_DMG - 8)
  86 /* Max supported by wil6210 value for interrupt threshold is 5sec. */
  87 #define WIL6210_ITR_TRSH_MAX (5000000)
  88 #define WIL6210_ITR_TX_INTERFRAME_TIMEOUT_DEFAULT (13) /* usec */
  89 #define WIL6210_ITR_RX_INTERFRAME_TIMEOUT_DEFAULT (13) /* usec */
  90 #define WIL6210_ITR_TX_MAX_BURST_DURATION_DEFAULT (500) /* usec */
  91 #define WIL6210_ITR_RX_MAX_BURST_DURATION_DEFAULT (500) /* usec */
  92 #define WIL6210_FW_RECOVERY_RETRIES     (5) /* try to recover this many times */
  93 #define WIL6210_FW_RECOVERY_TO  msecs_to_jiffies(5000)
  94 #define WIL6210_SCAN_TO         msecs_to_jiffies(10000)
  95 #define WIL6210_RX_HIGH_TRSH_INIT               (0)
  96 #define WIL6210_RX_HIGH_TRSH_DEFAULT \
  97                                 (1 << (WIL_RX_RING_SIZE_ORDER_DEFAULT - 3))
  98 /* Hardware definitions begin */
  99
 100 /*
 101  * Mapping
 102  * RGF File      | Host addr    |  FW addr
 103  *               |              |
 104  * user_rgf      | 0x000000     | 0x880000
 105  *  dma_rgf      | 0x001000     | 0x881000
 106  * pcie_rgf      | 0x002000     | 0x882000
 107  *               |              |
 108  */
 109
 110 /* Where various structures placed in host address space */
 111 #define WIL6210_FW_HOST_OFF      (0x880000UL)
 112
 113 #define HOSTADDR(fwaddr)        (fwaddr - WIL6210_FW_HOST_OFF)
 114
 115 /*
 116  * Interrupt control registers block
 117  *
 118  * each interrupt controlled by the same bit in all registers
 119  */
 120 struct RGF_ICR {
 121         u32 ICC; /* Cause Control, RW: 0 - W1C, 1 - COR */
 122         u32 ICR; /* Cause, W1C/COR depending on ICC */
 123         u32 ICM; /* Cause masked (ICR & ~IMV), W1C/COR depending on ICC */
 124         u32 ICS; /* Cause Set, WO */
 125         u32 IMV; /* Mask, RW+S/C */
 126         u32 IMS; /* Mask Set, write 1 to set */
 127         u32 IMC; /* Mask Clear, write 1 to clear */
 128 } __packed;
 129
 130 struct RGF_BL {
 131         u32 ready;              /* 0x880A3C bit [0] */
 132 #define BIT_BL_READY    BIT(0)
 133         u32 version;            /* 0x880A40 version of the BL struct */
 134         u32 rf_type;            /* 0x880A44 ID of the connected RF */
 135         u32 baseband_type;      /* 0x880A48 ID of the baseband */
 136         u8  mac_address[ETH_ALEN]; /* 0x880A4C permanent MAC */
 137         u8 pad[2];
 138 } __packed;
 139
 140 /* registers - FW addresses */
 141 #define RGF_USER_USAGE_1                (0x880004)
 142 #define RGF_USER_USAGE_6                (0x880018)
 143 #define RGF_USER_HW_MACHINE_STATE       (0x8801dc)
 144         #define HW_MACHINE_BOOT_DONE    (0x3fffffd)
 145 #define RGF_USER_USER_CPU_0             (0x8801e0)
 146         #define BIT_USER_USER_CPU_MAN_RST       BIT(1) /* user_cpu_man_rst */
 147 #define RGF_USER_MAC_CPU_0              (0x8801fc)
 148         #define BIT_USER_MAC_CPU_MAN_RST        BIT(1) /* mac_cpu_man_rst */
 149 #define RGF_USER_USER_SCRATCH_PAD       (0x8802bc)
 150 #define RGF_USER_BL                     (0x880A3C) /* Boot Loader */
 151 #define RGF_USER_FW_REV_ID              (0x880a8c) /* chip revision */
 152 #define RGF_USER_CLKS_CTL_0             (0x880abc)
 153         #define BIT_USER_CLKS_CAR_AHB_SW_SEL    BIT(1) /* ref clk/PLL */
 154         #define BIT_USER_CLKS_RST_PWGD  BIT(11) /* reset on "power good" */
 155 #define RGF_USER_CLKS_CTL_SW_RST_VEC_0  (0x880b04)
 156 #define RGF_USER_CLKS_CTL_SW_RST_VEC_1  (0x880b08)
 157 #define RGF_USER_CLKS_CTL_SW_RST_VEC_2  (0x880b0c)
 158 #define RGF_USER_CLKS_CTL_SW_RST_VEC_3  (0x880b10)
 159 #define RGF_USER_CLKS_CTL_SW_RST_MASK_0 (0x880b14)
 160         #define BIT_HPAL_PERST_FROM_PAD BIT(6)
 161         #define BIT_CAR_PERST_RST       BIT(7)
 162 #define RGF_USER_USER_ICR               (0x880b4c) /* struct RGF_ICR */
 163         #define BIT_USER_USER_ICR_SW_INT_2      BIT(18)
 164 #define RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0      (0x880c18)
 165 #define RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1      (0x880c2c)
 166 #define RGF_USER_SPARROW_M_4                    (0x880c50) /* Sparrow */
 167         #define BIT_SPARROW_M_4_SEL_SLEEP_OR_REF        BIT(2)
 168
 169 #define RGF_DMA_EP_TX_ICR               (0x881bb4) /* struct RGF_ICR */
 170         #define BIT_DMA_EP_TX_ICR_TX_DONE       BIT(0)
 171         #define BIT_DMA_EP_TX_ICR_TX_DONE_N(n)  BIT(n+1) /* n = [0..23] */
 172 #define RGF_DMA_EP_RX_ICR               (0x881bd0) /* struct RGF_ICR */
 173         #define BIT_DMA_EP_RX_ICR_RX_DONE       BIT(0)
 174         #define BIT_DMA_EP_RX_ICR_RX_HTRSH      BIT(1)
 175 #define RGF_DMA_EP_MISC_ICR             (0x881bec) /* struct RGF_ICR */
 176         #define BIT_DMA_EP_MISC_ICR_RX_HTRSH    BIT(0)
 177         #define BIT_DMA_EP_MISC_ICR_TX_NO_ACT   BIT(1)
 178         #define BIT_DMA_EP_MISC_ICR_FW_INT(n)   BIT(28+n) /* n = [0..3] */
 179
 180 /* Legacy interrupt moderation control (before Sparrow v2)*/
 181 #define RGF_DMA_ITR_CNT_TRSH            (0x881c5c)
 182 #define RGF_DMA_ITR_CNT_DATA            (0x881c60)
 183 #define RGF_DMA_ITR_CNT_CRL             (0x881c64)
 184         #define BIT_DMA_ITR_CNT_CRL_EN          BIT(0)
 185         #define BIT_DMA_ITR_CNT_CRL_EXT_TICK    BIT(1)
 186         #define BIT_DMA_ITR_CNT_CRL_FOREVER     BIT(2)
 187         #define BIT_DMA_ITR_CNT_CRL_CLR         BIT(3)
 188         #define BIT_DMA_ITR_CNT_CRL_REACH_TRSH  BIT(4)
 189
 190 /* Offload control (Sparrow B0+) */
 191 #define RGF_DMA_OFUL_NID_0              (0x881cd4)
 192         #define BIT_DMA_OFUL_NID_0_RX_EXT_TR_EN         BIT(0)
 193         #define BIT_DMA_OFUL_NID_0_TX_EXT_TR_EN         BIT(1)
 194         #define BIT_DMA_OFUL_NID_0_RX_EXT_A3_SRC        BIT(2)
 195         #define BIT_DMA_OFUL_NID_0_TX_EXT_A3_SRC        BIT(3)
 196
 197 /* New (sparrow v2+) interrupt moderation control */
 198 #define RGF_DMA_ITR_TX_DESQ_NO_MOD              (0x881d40)
 199 #define RGF_DMA_ITR_TX_CNT_TRSH                 (0x881d34)
 200 #define RGF_DMA_ITR_TX_CNT_DATA                 (0x881d38)
 201 #define RGF_DMA_ITR_TX_CNT_CTL                  (0x881d3c)
 202         #define BIT_DMA_ITR_TX_CNT_CTL_EN               BIT(0)
 203         #define BIT_DMA_ITR_TX_CNT_CTL_EXT_TIC_SEL      BIT(1)
 204         #define BIT_DMA_ITR_TX_CNT_CTL_FOREVER          BIT(2)
 205         #define BIT_DMA_ITR_TX_CNT_CTL_CLR              BIT(3)
 206         #define BIT_DMA_ITR_TX_CNT_CTL_REACHED_TRESH    BIT(4)
 207         #define BIT_DMA_ITR_TX_CNT_CTL_CROSS_EN         BIT(5)
 208         #define BIT_DMA_ITR_TX_CNT_CTL_FREE_RUNNIG      BIT(6)
 209 #define RGF_DMA_ITR_TX_IDL_CNT_TRSH                     (0x881d60)
 210 #define RGF_DMA_ITR_TX_IDL_CNT_DATA                     (0x881d64)
 211 #define RGF_DMA_ITR_TX_IDL_CNT_CTL                      (0x881d68)
 212         #define BIT_DMA_ITR_TX_IDL_CNT_CTL_EN                   BIT(0)
 213         #define BIT_DMA_ITR_TX_IDL_CNT_CTL_EXT_TIC_SEL          BIT(1)
 214         #define BIT_DMA_ITR_TX_IDL_CNT_CTL_FOREVER              BIT(2)
 215         #define BIT_DMA_ITR_TX_IDL_CNT_CTL_CLR                  BIT(3)
 216         #define BIT_DMA_ITR_TX_IDL_CNT_CTL_REACHED_TRESH        BIT(4)
 217 #define RGF_DMA_ITR_RX_DESQ_NO_MOD              (0x881d50)
 218 #define RGF_DMA_ITR_RX_CNT_TRSH                 (0x881d44)
 219 #define RGF_DMA_ITR_RX_CNT_DATA                 (0x881d48)
 220 #define RGF_DMA_ITR_RX_CNT_CTL                  (0x881d4c)
 221         #define BIT_DMA_ITR_RX_CNT_CTL_EN               BIT(0)
 222         #define BIT_DMA_ITR_RX_CNT_CTL_EXT_TIC_SEL      BIT(1)
 223         #define BIT_DMA_ITR_RX_CNT_CTL_FOREVER          BIT(2)
 224         #define BIT_DMA_ITR_RX_CNT_CTL_CLR              BIT(3)
 225         #define BIT_DMA_ITR_RX_CNT_CTL_REACHED_TRESH    BIT(4)
 226         #define BIT_DMA_ITR_RX_CNT_CTL_CROSS_EN         BIT(5)
 227         #define BIT_DMA_ITR_RX_CNT_CTL_FREE_RUNNIG      BIT(6)
 228 #define RGF_DMA_ITR_RX_IDL_CNT_TRSH                     (0x881d54)
 229 #define RGF_DMA_ITR_RX_IDL_CNT_DATA                     (0x881d58)
 230 #define RGF_DMA_ITR_RX_IDL_CNT_CTL                      (0x881d5c)
 231         #define BIT_DMA_ITR_RX_IDL_CNT_CTL_EN                   BIT(0)
 232         #define BIT_DMA_ITR_RX_IDL_CNT_CTL_EXT_TIC_SEL          BIT(1)
 233         #define BIT_DMA_ITR_RX_IDL_CNT_CTL_FOREVER              BIT(2)
 234         #define BIT_DMA_ITR_RX_IDL_CNT_CTL_CLR                  BIT(3)
 235         #define BIT_DMA_ITR_RX_IDL_CNT_CTL_REACHED_TRESH        BIT(4)
 236
 237 #define RGF_DMA_PSEUDO_CAUSE            (0x881c68)
 238 #define RGF_DMA_PSEUDO_CAUSE_MASK_SW    (0x881c6c)
 239 #define RGF_DMA_PSEUDO_CAUSE_MASK_FW    (0x881c70)
 240         #define BIT_DMA_PSEUDO_CAUSE_RX         BIT(0)
 241         #define BIT_DMA_PSEUDO_CAUSE_TX         BIT(1)
 242         #define BIT_DMA_PSEUDO_CAUSE_MISC       BIT(2)
 243
 244 #define RGF_HP_CTRL                     (0x88265c)
 245 #define RGF_PCIE_LOS_COUNTER_CTL        (0x882dc4)
 246
 247 /* MAC timer, usec, for packet lifetime */
 248 #define RGF_MAC_MTRL_COUNTER_0          (0x886aa8)
 249
 250 #define RGF_CAF_ICR                     (0x88946c) /* struct RGF_ICR */
 251 #define RGF_CAF_OSC_CONTROL             (0x88afa4)
 252         #define BIT_CAF_OSC_XTAL_EN             BIT(0)
 253 #define RGF_CAF_PLL_LOCK_STATUS         (0x88afec)
 254         #define BIT_CAF_OSC_DIG_XTAL_STABLE     BIT(0)
 255
 256 #define RGF_USER_JTAG_DEV_ID    (0x880b34) /* device ID */
 257         #define JTAG_DEV_ID_SPARROW_B0  (0x2632072f)
 258
 259 enum {
 260         HW_VER_UNKNOWN,
 261         HW_VER_SPARROW_B0, /* JTAG_DEV_ID_SPARROW_B0 */
 262 };
 263
 264 /* popular locations */
 265 #define HOST_MBOX   HOSTADDR(RGF_USER_USER_SCRATCH_PAD)
 266 #define HOST_SW_INT (HOSTADDR(RGF_USER_USER_ICR) + \
 267         offsetof(struct RGF_ICR, ICS))
 268 #define SW_INT_MBOX BIT_USER_USER_ICR_SW_INT_2
 269
 270 /* ISR register bits */
 271 #define ISR_MISC_FW_READY       BIT_DMA_EP_MISC_ICR_FW_INT(0)
 272 #define ISR_MISC_MBOX_EVT       BIT_DMA_EP_MISC_ICR_FW_INT(1)
 273 #define ISR_MISC_FW_ERROR       BIT_DMA_EP_MISC_ICR_FW_INT(3)
 274
 275 /* Hardware definitions end */
 276 struct fw_map {
 277         u32 from; /* linker address - from, inclusive */
 278         u32 to;   /* linker address - to, exclusive */
 279         u32 host; /* PCI/Host address - BAR0 + 0x880000 */
 280         const char *name; /* for debugfs */
 281 };
 282
 283 /* array size should be in sync with actual definition in the wmi.c */
 284 extern const struct fw_map fw_mapping[8];
 285
 286 /**
 287  * mk_cidxtid - construct @cidxtid field
 288  * @cid: CID value
 289  * @tid: TID value
 290  *
 291  * @cidxtid field encoded as bits 0..3 - CID; 4..7 - TID
 292  */
 293 static inline u8 mk_cidxtid(u8 cid, u8 tid)
 294 {
 295         return ((tid & 0xf) << 4) | (cid & 0xf);
 296 }
 297
 298 /**
 299  * parse_cidxtid - parse @cidxtid field
 300  * @cid: store CID value here
 301  * @tid: store TID value here
 302  *
 303  * @cidxtid field encoded as bits 0..3 - CID; 4..7 - TID
 304  */
 305 static inline void parse_cidxtid(u8 cidxtid, u8 *cid, u8 *tid)
 306 {
 307         *cid = cidxtid & 0xf;
 308         *tid = (cidxtid >> 4) & 0xf;
 309 }
 310
 311 struct wil6210_mbox_ring {
 312         u32 base;
 313         u16 entry_size; /* max. size of mbox entry, incl. all headers */
 314         u16 size;
 315         u32 tail;
 316         u32 head;
 317 } __packed;
 318
 319 struct wil6210_mbox_ring_desc {
 320         __le32 sync;
 321         __le32 addr;
 322 } __packed;
 323
 324 /* at HOST_OFF_WIL6210_MBOX_CTL */
 325 struct wil6210_mbox_ctl {
 326         struct wil6210_mbox_ring tx;
 327         struct wil6210_mbox_ring rx;
 328 } __packed;
 329
 330 struct wil6210_mbox_hdr {
 331         __le16 seq;
 332         __le16 len; /* payload, bytes after this header */
 333         __le16 type;
 334         u8 flags;
 335         u8 reserved;
 336 } __packed;
 337
 338 #define WIL_MBOX_HDR_TYPE_WMI (0)
 339
 340 /* max. value for wil6210_mbox_hdr.len */
 341 #define MAX_MBOXITEM_SIZE   (240)
 342
 343 /**
 344  * struct wil6210_mbox_hdr_wmi - WMI header
 345  *
 346  * @mid: MAC ID
 347  *      00 - default, created by FW
 348  *      01..0f - WiFi ports, driver to create
 349  *      10..fe - debug
 350  *      ff - broadcast
 351  * @id: command/event ID
 352  * @timestamp: FW fills for events, free-running msec timer
 353  */
 354 struct wil6210_mbox_hdr_wmi {
 355         u8 mid;
 356         u8 reserved;
 357         __le16 id;
 358         __le32 timestamp;
 359 } __packed;
 360
 361 struct pending_wmi_event {
 362         struct list_head list;
 363         struct {
 364                 struct wil6210_mbox_hdr hdr;
 365                 struct wil6210_mbox_hdr_wmi wmi;
 366                 u8 data[0];
 367         } __packed event;
 368 };
 369
 370 enum { /* for wil_ctx.mapped_as */
 371         wil_mapped_as_none = 0,
 372         wil_mapped_as_single = 1,
 373         wil_mapped_as_page = 2,
 374 };
 375
 376 /**
 377  * struct wil_ctx - software context for Vring descriptor
 378  */
 379 struct wil_ctx {
 380         struct sk_buff *skb;
 381         u8 nr_frags;
 382         u8 mapped_as;
 383 };
 384
 385 union vring_desc;
 386
 387 struct vring {
 388         dma_addr_t pa;
 389         volatile union vring_desc *va; /* vring_desc[size], WriteBack by DMA */
 390         u16 size; /* number of vring_desc elements */
 391         u32 swtail;
 392         u32 swhead;
 393         u32 hwtail; /* write here to inform hw */
 394         struct wil_ctx *ctx; /* ctx[size] - software context */
 395 };
 396
 397 /**
 398  * Additional data for Tx Vring
 399  */
 400 struct vring_tx_data {
 401         bool dot1x_open;
 402         int enabled;
 403         cycles_t idle, last_idle, begin;
 404         u8 agg_wsize; /* agreed aggregation window, 0 - no agg */
 405         u16 agg_timeout;
 406         u8 agg_amsdu;
 407         bool addba_in_progress; /* if set, agg_xxx is for request in progress */
 408         spinlock_t lock;
 409 };
 410
 411 enum { /* for wil6210_priv.status */
 412         wil_status_fwready = 0,
 413         wil_status_fwconnecting,
 414         wil_status_fwconnected,
 415         wil_status_dontscan,
 416         wil_status_reset_done,
 417         wil_status_irqen, /* FIXME: interrupts enabled - for debug */
 418         wil_status_napi_en, /* NAPI enabled protected by wil->mutex */
 419         wil_status_last /* keep last */
 420 };
 421
 422 struct pci_dev;
 423
 424 /**
 425  * struct tid_ampdu_rx - TID aggregation information (Rx).
 426  *
 427  * @reorder_buf: buffer to reorder incoming aggregated MPDUs
 428  * @reorder_time: jiffies when skb was added
 429  * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value)
 430  * @reorder_timer: releases expired frames from the reorder buffer.
 431  * @last_rx: jiffies of last rx activity
 432  * @head_seq_num: head sequence number in reordering buffer.
 433  * @stored_mpdu_num: number of MPDUs in reordering buffer
 434  * @ssn: Starting Sequence Number expected to be aggregated.
 435  * @buf_size: buffer size for incoming A-MPDUs
 436  * @timeout: reset timer value (in TUs).
 437  * @dialog_token: dialog token for aggregation session
 438  * @rcu_head: RCU head used for freeing this struct
 439  *
 440  * This structure's lifetime is managed by RCU, assignments to
 441  * the array holding it must hold the aggregation mutex.
 442  *
 443  */
 444 struct wil_tid_ampdu_rx {
 445         struct sk_buff **reorder_buf;
 446         unsigned long *reorder_time;
 447         struct timer_list session_timer;
 448         struct timer_list reorder_timer;
 449         unsigned long last_rx;
 450         u16 head_seq_num;
 451         u16 stored_mpdu_num;
 452         u16 ssn;
 453         u16 buf_size;
 454         u16 timeout;
 455         u16 ssn_last_drop;
 456         u8 dialog_token;
 457         bool first_time; /* is it 1-st time this buffer used? */
 458 };
 459
 460 enum wil_sta_status {
 461         wil_sta_unused = 0,
 462         wil_sta_conn_pending = 1,
 463         wil_sta_connected = 2,
 464 };
 465
 466 #define WIL_STA_TID_NUM (16)
 467 #define WIL_MCS_MAX (12) /* Maximum MCS supported */
 468
 469 struct wil_net_stats {
 470         unsigned long   rx_packets;
 471         unsigned long   tx_packets;
 472         unsigned long   rx_bytes;
 473         unsigned long   tx_bytes;
 474         unsigned long   tx_errors;
 475         unsigned long   rx_dropped;
 476         u16 last_mcs_rx;
 477         u64 rx_per_mcs[WIL_MCS_MAX + 1];
 478 };
 479
 480 /**
 481  * struct wil_sta_info - data for peer
 482  *
 483  * Peer identified by its CID (connection ID)
 484  * NIC performs beam forming for each peer;
 485  * if no beam forming done, frame exchange is not
 486  * possible.
 487  */
 488 struct wil_sta_info {
 489         u8 addr[ETH_ALEN];
 490         enum wil_sta_status status;
 491         struct wil_net_stats stats;
 492         /* Rx BACK */
 493         struct wil_tid_ampdu_rx *tid_rx[WIL_STA_TID_NUM];
 494         spinlock_t tid_rx_lock; /* guarding tid_rx array */
 495         unsigned long tid_rx_timer_expired[BITS_TO_LONGS(WIL_STA_TID_NUM)];
 496         unsigned long tid_rx_stop_requested[BITS_TO_LONGS(WIL_STA_TID_NUM)];
 497 };
 498
 499 enum {
 500         fw_recovery_idle = 0,
 501         fw_recovery_pending = 1,
 502         fw_recovery_running = 2,
 503 };
 504
 505 enum {
 506         hw_capability_last
 507 };
 508
 509 struct wil_back_rx {
 510         struct list_head list;
 511         /* request params, converted to CPU byte order - what we asked for */
 512         u8 cidxtid;
 513         u8 dialog_token;
 514         u16 ba_param_set;
 515         u16 ba_timeout;
 516         u16 ba_seq_ctrl;
 517 };
 518
 519 struct wil_back_tx {
 520         struct list_head list;
 521         /* request params, converted to CPU byte order - what we asked for */
 522         u8 ringid;
 523         u8 agg_wsize;
 524         u16 agg_timeout;
 525 };
 526
 527 struct wil_probe_client_req {
 528         struct list_head list;
 529         u64 cookie;
 530         u8 cid;
 531 };
 532
 533 struct pmc_ctx {
 534         /* alloc, free, and read operations must own the lock */
 535         struct mutex            lock;
 536         struct vring_tx_desc    *pring_va;
 537         dma_addr_t              pring_pa;
 538         struct desc_alloc_info  *descriptors;
 539         int                     last_cmd_status;
 540         int                     num_descriptors;
 541         int                     descriptor_size;
 542 };
 543
 544 struct wil6210_priv {
 545         struct pci_dev *pdev;
 546         int n_msi;
 547         struct wireless_dev *wdev;
 548         void __iomem *csr;
 549         DECLARE_BITMAP(status, wil_status_last);
 550         u32 fw_version;
 551         u32 hw_version;
 552         const char *hw_name;
 553         DECLARE_BITMAP(hw_capabilities, hw_capability_last);
 554         u8 n_mids; /* number of additional MIDs as reported by FW */
 555         u32 recovery_count; /* num of FW recovery attempts in a short time */
 556         u32 recovery_state; /* FW recovery state machine */
 557         unsigned long last_fw_recovery; /* jiffies of last fw recovery */
 558         wait_queue_head_t wq; /* for all wait_event() use */
 559         /* profile */
 560         u32 monitor_flags;
 561         u32 privacy; /* secure connection? */
 562         int sinfo_gen;
 563         u32 ap_isolate; /* no intra-BSS communication */
 564         /* interrupt moderation */
 565         u32 tx_max_burst_duration;
 566         u32 tx_interframe_timeout;
 567         u32 rx_max_burst_duration;
 568         u32 rx_interframe_timeout;
 569         /* cached ISR registers */
 570         u32 isr_misc;
 571         /* mailbox related */
 572         struct mutex wmi_mutex;
 573         struct wil6210_mbox_ctl mbox_ctl;
 574         struct completion wmi_ready;
 575         struct completion wmi_call;
 576         u16 wmi_seq;
 577         u16 reply_id; /**< wait for this WMI event */
 578         void *reply_buf;
 579         u16 reply_size;
 580         struct workqueue_struct *wmi_wq; /* for deferred calls */
 581         struct work_struct wmi_event_worker;
 582         struct workqueue_struct *wq_service;
 583         struct work_struct connect_worker;
 584         struct work_struct disconnect_worker;
 585         struct work_struct fw_error_worker;     /* for FW error recovery */
 586         struct timer_list connect_timer;
 587         struct timer_list scan_timer; /* detect scan timeout */
 588         int pending_connect_cid;
 589         struct list_head pending_wmi_ev;
 590         /*
 591          * protect pending_wmi_ev
 592          * - fill in IRQ from wil6210_irq_misc,
 593          * - consumed in thread by wmi_event_worker
 594          */
 595         spinlock_t wmi_ev_lock;
 596         struct napi_struct napi_rx;
 597         struct napi_struct napi_tx;
 598         /* BACK */
 599         struct list_head back_rx_pending;
 600         struct mutex back_rx_mutex; /* protect @back_rx_pending */
 601         struct work_struct back_rx_worker;
 602         struct list_head back_tx_pending;
 603         struct mutex back_tx_mutex; /* protect @back_tx_pending */
 604         struct work_struct back_tx_worker;
 605         /* keep alive */
 606         struct list_head probe_client_pending;
 607         struct mutex probe_client_mutex; /* protect @probe_client_pending */
 608         struct work_struct probe_client_worker;
 609         /* DMA related */
 610         struct vring vring_rx;
 611         struct vring vring_tx[WIL6210_MAX_TX_RINGS];
 612         struct vring_tx_data vring_tx_data[WIL6210_MAX_TX_RINGS];
 613         u8 vring2cid_tid[WIL6210_MAX_TX_RINGS][2]; /* [0] - CID, [1] - TID */
 614         struct wil_sta_info sta[WIL6210_MAX_CID];
 615         int bcast_vring;
 616         /* scan */
 617         struct cfg80211_scan_request *scan_request;
 618
 619         struct mutex mutex; /* for wil6210_priv access in wil_{up|down} */
 620         /* statistics */
 621         atomic_t isr_count_rx, isr_count_tx;
 622         /* debugfs */
 623         struct dentry *debug;
 624         struct debugfs_blob_wrapper blobs[ARRAY_SIZE(fw_mapping)];
 625
 626         void *platform_handle;
 627         struct wil_platform_ops platform_ops;
 628
 629         struct pmc_ctx pmc;
 630 };
 631
 632 #define wil_to_wiphy(i) (i->wdev->wiphy)
 633 #define wil_to_dev(i) (wiphy_dev(wil_to_wiphy(i)))
 634 #define wiphy_to_wil(w) (struct wil6210_priv *)(wiphy_priv(w))
 635 #define wil_to_wdev(i) (i->wdev)
 636 #define wdev_to_wil(w) (struct wil6210_priv *)(wdev_priv(w))
 637 #define wil_to_ndev(i) (wil_to_wdev(i)->netdev)
 638 #define ndev_to_wil(n) (wdev_to_wil(n->ieee80211_ptr))
 639
 640 __printf(2, 3)
 641 void wil_dbg_trace(struct wil6210_priv *wil, const char *fmt, ...);
 642 __printf(2, 3)
 643 void wil_err(struct wil6210_priv *wil, const char *fmt, ...);
 644 __printf(2, 3)
 645 void wil_err_ratelimited(struct wil6210_priv *wil, const char *fmt, ...);
 646 __printf(2, 3)
 647 void wil_info(struct wil6210_priv *wil, const char *fmt, ...);
 648 #define wil_dbg(wil, fmt, arg...) do { \
 649         netdev_dbg(wil_to_ndev(wil), fmt, ##arg); \
 650         wil_dbg_trace(wil, fmt, ##arg); \
 651 } while (0)
 652
 653 #define wil_dbg_irq(wil, fmt, arg...) wil_dbg(wil, "DBG[ IRQ]" fmt, ##arg)
 654 #define wil_dbg_txrx(wil, fmt, arg...) wil_dbg(wil, "DBG[TXRX]" fmt, ##arg)
 655 #define wil_dbg_wmi(wil, fmt, arg...) wil_dbg(wil, "DBG[ WMI]" fmt, ##arg)
 656 #define wil_dbg_misc(wil, fmt, arg...) wil_dbg(wil, "DBG[MISC]" fmt, ##arg)
 657
 658 #if defined(CONFIG_DYNAMIC_DEBUG)
 659 #define wil_hex_dump_txrx(prefix_str, prefix_type, rowsize,     \
 660                           groupsize, buf, len, ascii)           \
 661                           print_hex_dump_debug("DBG[TXRX]" prefix_str,\
 662                                          prefix_type, rowsize,  \
 663                                          groupsize, buf, len, ascii)
 664
 665 #define wil_hex_dump_wmi(prefix_str, prefix_type, rowsize,      \
 666                          groupsize, buf, len, ascii)            \
 667                          print_hex_dump_debug("DBG[ WMI]" prefix_str,\
 668                                         prefix_type, rowsize,   \
 669                                         groupsize, buf, len, ascii)
 670 #else /* defined(CONFIG_DYNAMIC_DEBUG) */
 671 static inline
 672 void wil_hex_dump_txrx(const char *prefix_str, int prefix_type, int rowsize,
 673                        int groupsize, const void *buf, size_t len, bool ascii)
 674 {
 675 }
 676
 677 static inline
 678 void wil_hex_dump_wmi(const char *prefix_str, int prefix_type, int rowsize,
 679                       int groupsize, const void *buf, size_t len, bool ascii)
 680 {
 681 }
 682 #endif /* defined(CONFIG_DYNAMIC_DEBUG) */
 683
 684 void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src,
 685                           size_t count);
 686 void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src,
 687                         size_t count);
 688
 689 void *wil_if_alloc(struct device *dev, void __iomem *csr);
 690 void wil_if_free(struct wil6210_priv *wil);
 691 int wil_if_add(struct wil6210_priv *wil);
 692 void wil_if_remove(struct wil6210_priv *wil);
 693 int wil_priv_init(struct wil6210_priv *wil);
 694 void wil_priv_deinit(struct wil6210_priv *wil);
 695 int wil_reset(struct wil6210_priv *wil, bool no_fw);
 696 void wil_fw_error_recovery(struct wil6210_priv *wil);
 697 void wil_set_recovery_state(struct wil6210_priv *wil, int state);
 698 int wil_up(struct wil6210_priv *wil);
 699 int __wil_up(struct wil6210_priv *wil);
 700 int wil_down(struct wil6210_priv *wil);
 701 int __wil_down(struct wil6210_priv *wil);
 702 void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r);
 703 int wil_find_cid(struct wil6210_priv *wil, const u8 *mac);
 704 void wil_set_ethtoolops(struct net_device *ndev);
 705
 706 void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr);
 707 void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr);
 708 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
 709                  struct wil6210_mbox_hdr *hdr);
 710 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len);
 711 void wmi_recv_cmd(struct wil6210_priv *wil);
 712 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
 713              u16 reply_id, void *reply, u8 reply_size, int to_msec);
 714 void wmi_event_worker(struct work_struct *work);
 715 void wmi_event_flush(struct wil6210_priv *wil);
 716 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid);
 717 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid);
 718 int wmi_set_channel(struct wil6210_priv *wil, int channel);
 719 int wmi_get_channel(struct wil6210_priv *wil, int *channel);
 720 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
 721                        const void *mac_addr, int key_usage);
 722 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
 723                        const void *mac_addr, int key_len, const void *key,
 724                        int key_usage);
 725 int wmi_echo(struct wil6210_priv *wil);
 726 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie);
 727 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring);
 728 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel);
 729 int wmi_rxon(struct wil6210_priv *wil, bool on);
 730 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_m, u32 *t_r);
 731 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason);
 732 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout);
 733 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason);
 734 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason);
 735 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
 736                       u16 status, bool amsdu, u16 agg_wsize, u16 timeout);
 737 int wil_addba_rx_request(struct wil6210_priv *wil, u8 cidxtid,
 738                          u8 dialog_token, __le16 ba_param_set,
 739                          __le16 ba_timeout, __le16 ba_seq_ctrl);
 740 void wil_back_rx_worker(struct work_struct *work);
 741 void wil_back_rx_flush(struct wil6210_priv *wil);
 742 int wil_addba_tx_request(struct wil6210_priv *wil, u8 ringid, u16 wsize);
 743 void wil_back_tx_worker(struct work_struct *work);
 744 void wil_back_tx_flush(struct wil6210_priv *wil);
 745
 746 void wil6210_clear_irq(struct wil6210_priv *wil);
 747 int wil6210_init_irq(struct wil6210_priv *wil, int irq);
 748 void wil6210_fini_irq(struct wil6210_priv *wil, int irq);
 749 void wil_mask_irq(struct wil6210_priv *wil);
 750 void wil_unmask_irq(struct wil6210_priv *wil);
 751 void wil_configure_interrupt_moderation(struct wil6210_priv *wil);
 752 void wil_disable_irq(struct wil6210_priv *wil);
 753 void wil_enable_irq(struct wil6210_priv *wil);
 754 int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 755                          struct cfg80211_mgmt_tx_params *params,
 756                          u64 *cookie);
 757
 758 int wil6210_debugfs_init(struct wil6210_priv *wil);
 759 void wil6210_debugfs_remove(struct wil6210_priv *wil);
 760 int wil_cid_fill_sinfo(struct wil6210_priv *wil, int cid,
 761                        struct station_info *sinfo);
 762
 763 struct wireless_dev *wil_cfg80211_init(struct device *dev);
 764 void wil_wdev_free(struct wil6210_priv *wil);
 765
 766 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr);
 767 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, u8 chan);
 768 int wmi_pcp_stop(struct wil6210_priv *wil);
 769 void wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid,
 770                         u16 reason_code, bool from_event);
 771 void wil_probe_client_flush(struct wil6210_priv *wil);
 772 void wil_probe_client_worker(struct work_struct *work);
 773
 774 int wil_rx_init(struct wil6210_priv *wil, u16 size);
 775 void wil_rx_fini(struct wil6210_priv *wil);
 776
 777 /* TX API */
 778 int wil_vring_init_tx(struct wil6210_priv *wil, int id, int size,
 779                       int cid, int tid);
 780 void wil_vring_fini_tx(struct wil6210_priv *wil, int id);
 781 int wil_vring_init_bcast(struct wil6210_priv *wil, int id, int size);
 782 int wil_bcast_init(struct wil6210_priv *wil);
 783 void wil_bcast_fini(struct wil6210_priv *wil);
 784
 785 netdev_tx_t wil_start_xmit(struct sk_buff *skb, struct net_device *ndev);
 786 int wil_tx_complete(struct wil6210_priv *wil, int ringid);
 787 void wil6210_unmask_irq_tx(struct wil6210_priv *wil);
 788
 789 /* RX API */
 790 void wil_rx_handle(struct wil6210_priv *wil, int *quota);
 791 void wil6210_unmask_irq_rx(struct wil6210_priv *wil);
 792
 793 int wil_iftype_nl2wmi(enum nl80211_iftype type);
 794
 795 int wil_ioctl(struct wil6210_priv *wil, void __user *data, int cmd);
 796 int wil_request_firmware(struct wil6210_priv *wil, const char *name);
 797
 798 #endif /* __WIL6210_H__ */