package/kernel/mac80211/patches/ath11k/0080-wifi-ath11k-add-support-default-regdb-while-searchin.patch

   1 From 88ca89202f8e8afb5225eb5244d79cd67c15d744 Mon Sep 17 00:00:00 2001
   2 From: Wen Gong <quic_wgong@quicinc.com>
   3 Date: Fri, 26 May 2023 12:41:06 +0300
   4 Subject: [PATCH] wifi: ath11k: add support default regdb while searching
   5  board-2.bin for WCN6855
   6
   7 Sometimes board-2.bin does not have the regdb data which matched the
   8 parameters such as vendor, device, subsystem-vendor, subsystem-device
   9 and etc. Add default regdb data with 'bus=%s' into board-2.bin for
  10 WCN6855, then ath11k use 'bus=pci' to search regdb data in board-2.bin
  11 for WCN6855.
  12
  13 kernel: [  122.515808] ath11k_pci 0000:03:00.0: boot using board name 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262'
  14 kernel: [  122.517240] ath11k_pci 0000:03:00.0: boot firmware request ath11k/WCN6855/hw2.0/board-2.bin size 6179564
  15 kernel: [  122.517280] ath11k_pci 0000:03:00.0: failed to fetch regdb data for bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262 from ath11k/WCN6855/hw2.0/board-2.bin
  16 kernel: [  122.517464] ath11k_pci 0000:03:00.0: boot using board name 'bus=pci'
  17 kernel: [  122.518901] ath11k_pci 0000:03:00.0: boot firmware request ath11k/WCN6855/hw2.0/board-2.bin size 6179564
  18 kernel: [  122.518915] ath11k_pci 0000:03:00.0: board name
  19 kernel: [  122.518917] ath11k_pci 0000:03:00.0: 00000000: 62 75 73 3d 70 63 69                             bus=pci
  20 kernel: [  122.518918] ath11k_pci 0000:03:00.0: boot found match regdb data for name 'bus=pci'
  21 kernel: [  122.518920] ath11k_pci 0000:03:00.0: boot found regdb data for 'bus=pci'
  22 kernel: [  122.518921] ath11k_pci 0000:03:00.0: fetched regdb
  23
  24 Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3
  25
  26 Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
  27 Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
  28 Link: https://lore.kernel.org/r/20230517133959.8224-1-quic_wgong@quicinc.com
  29 ---
  30  drivers/net/wireless/ath/ath11k/core.c | 53 +++++++++++++++++++-------
  31  1 file changed, 40 insertions(+), 13 deletions(-)
  32
  33 --- a/drivers/net/wireless/ath/ath11k/core.c
  34 +++ b/drivers/net/wireless/ath/ath11k/core.c
  35 @@ -961,7 +961,8 @@ int ath11k_core_check_dt(struct ath11k_b
  36  }
  37
  38  static int __ath11k_core_create_board_name(struct ath11k_base *ab, char *name,
  39 -                                          size_t name_len, bool with_variant)
  40 +                                          size_t name_len, bool with_variant,
  41 +                                          bool bus_type_mode)
  42  {
  43         /* strlen(',variant=') + strlen(ab->qmi.target.bdf_ext) */
  44         char variant[9 + ATH11K_QMI_BDF_EXT_STR_LENGTH] = { 0 };
  45 @@ -972,15 +973,20 @@ static int __ath11k_core_create_board_na
  46
  47         switch (ab->id.bdf_search) {
  48         case ATH11K_BDF_SEARCH_BUS_AND_BOARD:
  49 -               scnprintf(name, name_len,
  50 -                         "bus=%s,vendor=%04x,device=%04x,subsystem-vendor=%04x,subsystem-device=%04x,qmi-chip-id=%d,qmi-board-id=%d%s",
  51 -                         ath11k_bus_str(ab->hif.bus),
  52 -                         ab->id.vendor, ab->id.device,
  53 -                         ab->id.subsystem_vendor,
  54 -                         ab->id.subsystem_device,
  55 -                         ab->qmi.target.chip_id,
  56 -                         ab->qmi.target.board_id,
  57 -                         variant);
  58 +               if (bus_type_mode)
  59 +                       scnprintf(name, name_len,
  60 +                                 "bus=%s",
  61 +                                 ath11k_bus_str(ab->hif.bus));
  62 +               else
  63 +                       scnprintf(name, name_len,
  64 +                                 "bus=%s,vendor=%04x,device=%04x,subsystem-vendor=%04x,subsystem-device=%04x,qmi-chip-id=%d,qmi-board-id=%d%s",
  65 +                                 ath11k_bus_str(ab->hif.bus),
  66 +                                 ab->id.vendor, ab->id.device,
  67 +                                 ab->id.subsystem_vendor,
  68 +                                 ab->id.subsystem_device,
  69 +                                 ab->qmi.target.chip_id,
  70 +                                 ab->qmi.target.board_id,
  71 +                                 variant);
  72                 break;
  73         default:
  74                 scnprintf(name, name_len,
  75 @@ -999,13 +1005,19 @@ static int __ath11k_core_create_board_na
  76  static int ath11k_core_create_board_name(struct ath11k_base *ab, char *name,
  77                                          size_t name_len)
  78  {
  79 -       return __ath11k_core_create_board_name(ab, name, name_len, true);
  80 +       return __ath11k_core_create_board_name(ab, name, name_len, true, false);
  81  }
  82
  83  static int ath11k_core_create_fallback_board_name(struct ath11k_base *ab, char *name,
  84                                                   size_t name_len)
  85  {
  86 -       return __ath11k_core_create_board_name(ab, name, name_len, false);
  87 +       return __ath11k_core_create_board_name(ab, name, name_len, false, false);
  88 +}
  89 +
  90 +static int ath11k_core_create_bus_type_board_name(struct ath11k_base *ab, char *name,
  91 +                                                 size_t name_len)
  92 +{
  93 +       return __ath11k_core_create_board_name(ab, name, name_len, false, true);
  94  }
  95
  96  const struct firmware *ath11k_core_firmware_request(struct ath11k_base *ab,
  97 @@ -1309,7 +1321,7 @@ success:
  98
  99  int ath11k_core_fetch_regdb(struct ath11k_base *ab, struct ath11k_board_data *bd)
 100  {
 101 -       char boardname[BOARD_NAME_SIZE];
 102 +       char boardname[BOARD_NAME_SIZE], default_boardname[BOARD_NAME_SIZE];
 103         int ret;
 104
 105         ret = ath11k_core_create_board_name(ab, boardname, BOARD_NAME_SIZE);
 106 @@ -1323,6 +1335,21 @@ int ath11k_core_fetch_regdb(struct ath11
 107                                                  ATH11K_BD_IE_REGDB,
 108                                                  ATH11K_BD_IE_REGDB_NAME,
 109                                                  ATH11K_BD_IE_REGDB_DATA);
 110 +       if (!ret)
 111 +               goto exit;
 112 +
 113 +       ret = ath11k_core_create_bus_type_board_name(ab, default_boardname,
 114 +                                                    BOARD_NAME_SIZE);
 115 +       if (ret) {
 116 +               ath11k_dbg(ab, ATH11K_DBG_BOOT,
 117 +                          "failed to create default board name for regdb: %d", ret);
 118 +               goto exit;
 119 +       }
 120 +
 121 +       ret = ath11k_core_fetch_board_data_api_n(ab, bd, default_boardname,
 122 +                                                ATH11K_BD_IE_REGDB,
 123 +                                                ATH11K_BD_IE_REGDB_NAME,
 124 +                                                ATH11K_BD_IE_REGDB_DATA);
 125         if (!ret)
 126                 goto exit;
 127