target/linux/generic/pending-5.4/742-net-sfp-add-more-extended-compliance-codes.patch

   1 From c66a4e76c8554c84e64b9315314576ac403c6641 Mon Sep 17 00:00:00 2001
   2 From: Russell King <rmk+kernel@armlinux.org.uk>
   3 Date: Thu, 26 Sep 2019 15:14:18 +0100
   4 Subject: [PATCH 645/660] net: sfp: add more extended compliance codes
   5
   6 SFF-8024 is used to define various constants re-used in several SFF
   7 SFP-related specifications.  Split these constants from the enum, and
   8 rename them to indicate that they're defined by SFF-8024.
   9
  10 Add and use updated SFF-8024 extended compliance code definitions for
  11 10GBASE-T, 5GBASE-T and 2.5GBASE-T modules.
  12
  13 Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
  14 ---
  15  drivers/net/phy/sfp-bus.c | 60 ++++++++++++++++------------
  16  drivers/net/phy/sfp.c     |  4 +-
  17  include/linux/sfp.h       | 82 ++++++++++++++++++++++++++-------------
  18  3 files changed, 93 insertions(+), 53 deletions(-)
  19
  20 --- a/drivers/net/phy/sfp-bus.c
  21 +++ b/drivers/net/phy/sfp-bus.c
  22 @@ -124,35 +124,35 @@ int sfp_parse_port(struct sfp_bus *bus,
  23
  24         /* port is the physical connector, set this from the connector field. */
  25         switch (id->base.connector) {
  26 -       case SFP_CONNECTOR_SC:
  27 -       case SFP_CONNECTOR_FIBERJACK:
  28 -       case SFP_CONNECTOR_LC:
  29 -       case SFP_CONNECTOR_MT_RJ:
  30 -       case SFP_CONNECTOR_MU:
  31 -       case SFP_CONNECTOR_OPTICAL_PIGTAIL:
  32 +       case SFF8024_CONNECTOR_SC:
  33 +       case SFF8024_CONNECTOR_FIBERJACK:
  34 +       case SFF8024_CONNECTOR_LC:
  35 +       case SFF8024_CONNECTOR_MT_RJ:
  36 +       case SFF8024_CONNECTOR_MU:
  37 +       case SFF8024_CONNECTOR_OPTICAL_PIGTAIL:
  38 +       case SFF8024_CONNECTOR_MPO_1X12:
  39 +       case SFF8024_CONNECTOR_MPO_2X16:
  40                 port = PORT_FIBRE;
  41                 break;
  42
  43 -       case SFP_CONNECTOR_RJ45:
  44 +       case SFF8024_CONNECTOR_RJ45:
  45                 port = PORT_TP;
  46                 break;
  47
  48 -       case SFP_CONNECTOR_COPPER_PIGTAIL:
  49 +       case SFF8024_CONNECTOR_COPPER_PIGTAIL:
  50                 port = PORT_DA;
  51                 break;
  52
  53 -       case SFP_CONNECTOR_UNSPEC:
  54 +       case SFF8024_CONNECTOR_UNSPEC:
  55                 if (id->base.e1000_base_t) {
  56                         port = PORT_TP;
  57                         break;
  58                 }
  59                 /* fallthrough */
  60 -       case SFP_CONNECTOR_SG: /* guess */
  61 -       case SFP_CONNECTOR_MPO_1X12:
  62 -       case SFP_CONNECTOR_MPO_2X16:
  63 -       case SFP_CONNECTOR_HSSDC_II:
  64 -       case SFP_CONNECTOR_NOSEPARATE:
  65 -       case SFP_CONNECTOR_MXC_2X16:
  66 +       case SFF8024_CONNECTOR_SG: /* guess */
  67 +       case SFF8024_CONNECTOR_HSSDC_II:
  68 +       case SFF8024_CONNECTOR_NOSEPARATE:
  69 +       case SFF8024_CONNECTOR_MXC_2X16:
  70                 port = PORT_OTHER;
  71                 break;
  72         default:
  73 @@ -261,22 +261,33 @@ void sfp_parse_support(struct sfp_bus *b
  74         }
  75
  76         switch (id->base.extended_cc) {
  77 -       case 0x00: /* Unspecified */
  78 +       case SFF8024_ECC_UNSPEC:
  79                 break;
  80 -       case 0x02: /* 100Gbase-SR4 or 25Gbase-SR */
  81 +       case SFF8024_ECC_100GBASE_SR4_25GBASE_SR:
  82                 phylink_set(modes, 100000baseSR4_Full);
  83                 phylink_set(modes, 25000baseSR_Full);
  84                 break;
  85 -       case 0x03: /* 100Gbase-LR4 or 25Gbase-LR */
  86 -       case 0x04: /* 100Gbase-ER4 or 25Gbase-ER */
  87 +       case SFF8024_ECC_100GBASE_LR4_25GBASE_LR:
  88 +       case SFF8024_ECC_100GBASE_ER4_25GBASE_ER:
  89                 phylink_set(modes, 100000baseLR4_ER4_Full);
  90                 break;
  91 -       case 0x0b: /* 100Gbase-CR4 or 25Gbase-CR CA-L */
  92 -       case 0x0c: /* 25Gbase-CR CA-S */
  93 -       case 0x0d: /* 25Gbase-CR CA-N */
  94 +       case SFF8024_ECC_100GBASE_CR4:
  95                 phylink_set(modes, 100000baseCR4_Full);
  96 +               /* fallthrough */
  97 +       case SFF8024_ECC_25GBASE_CR_S:
  98 +       case SFF8024_ECC_25GBASE_CR_N:
  99                 phylink_set(modes, 25000baseCR_Full);
 100                 break;
 101 +       case SFF8024_ECC_10GBASE_T_SFI:
 102 +       case SFF8024_ECC_10GBASE_T_SR:
 103 +               phylink_set(modes, 10000baseT_Full);
 104 +               break;
 105 +       case SFF8024_ECC_5GBASE_T:
 106 +               phylink_set(modes, 5000baseT_Full);
 107 +               break;
 108 +       case SFF8024_ECC_2_5GBASE_T:
 109 +               phylink_set(modes, 2500baseT_Full);
 110 +               break;
 111         default:
 112                 dev_warn(bus->sfp_dev,
 113                          "Unknown/unsupported extended compliance code: 0x%02x\n",
 114 @@ -301,7 +312,7 @@ void sfp_parse_support(struct sfp_bus *b
 115          */
 116         if (bitmap_empty(modes, __ETHTOOL_LINK_MODE_MASK_NBITS)) {
 117                 /* If the encoding and bit rate allows 1000baseX */
 118 -               if (id->base.encoding == SFP_ENCODING_8B10B && br_nom &&
 119 +               if (id->base.encoding == SFF8024_ENCODING_8B10B && br_nom &&
 120                     br_min <= 1300 && br_max >= 1200)
 121                         phylink_set(modes, 1000baseX_Full);
 122         }
 123 @@ -332,7 +343,8 @@ phy_interface_t sfp_select_interface(str
 124             phylink_test(link_modes, 10000baseSR_Full) ||
 125             phylink_test(link_modes, 10000baseLR_Full) ||
 126             phylink_test(link_modes, 10000baseLRM_Full) ||
 127 -           phylink_test(link_modes, 10000baseER_Full))
 128 +           phylink_test(link_modes, 10000baseER_Full) ||
 129 +           phylink_test(link_modes, 10000baseT_Full))
 130                 return PHY_INTERFACE_MODE_10GKR;
 131
 132         if (phylink_test(link_modes, 2500baseX_Full))
 133 --- a/drivers/net/phy/sfp.c
 134 +++ b/drivers/net/phy/sfp.c
 135 @@ -243,7 +243,7 @@ struct sfp {
 136
 137  static bool sff_module_supported(const struct sfp_eeprom_id *id)
 138  {
 139 -       return id->base.phys_id == SFP_PHYS_ID_SFF &&
 140 +       return id->base.phys_id == SFF8024_ID_SFF_8472 &&
 141                id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP;
 142  }
 143
 144 @@ -254,7 +254,7 @@ static const struct sff_data sff_data =
 145
 146  static bool sfp_module_supported(const struct sfp_eeprom_id *id)
 147  {
 148 -       return id->base.phys_id == SFP_PHYS_ID_SFP &&
 149 +       return id->base.phys_id == SFF8024_ID_SFP &&
 150                id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP;
 151  }
 152
 153 --- a/include/linux/sfp.h
 154 +++ b/include/linux/sfp.h
 155 @@ -275,6 +275,61 @@ struct sfp_diag {
 156         __be16 cal_v_offset;
 157  } __packed;
 158
 159 +/* SFF8024 defined constants */
 160 +enum {
 161 +       SFF8024_ID_UNK                  = 0x00,
 162 +       SFF8024_ID_SFF_8472             = 0x02,
 163 +       SFF8024_ID_SFP                  = 0x03,
 164 +       SFF8024_ID_DWDM_SFP             = 0x0b,
 165 +       SFF8024_ID_QSFP_8438            = 0x0c,
 166 +       SFF8024_ID_QSFP_8436_8636       = 0x0d,
 167 +       SFF8024_ID_QSFP28_8636          = 0x11,
 168 +
 169 +       SFF8024_ENCODING_UNSPEC         = 0x00,
 170 +       SFF8024_ENCODING_8B10B          = 0x01,
 171 +       SFF8024_ENCODING_4B5B           = 0x02,
 172 +       SFF8024_ENCODING_NRZ            = 0x03,
 173 +       SFF8024_ENCODING_8472_MANCHESTER= 0x04,
 174 +       SFF8024_ENCODING_8472_SONET     = 0x05,
 175 +       SFF8024_ENCODING_8472_64B66B    = 0x06,
 176 +       SFF8024_ENCODING_8436_MANCHESTER= 0x06,
 177 +       SFF8024_ENCODING_8436_SONET     = 0x04,
 178 +       SFF8024_ENCODING_8436_64B66B    = 0x05,
 179 +       SFF8024_ENCODING_256B257B       = 0x07,
 180 +       SFF8024_ENCODING_PAM4           = 0x08,
 181 +
 182 +       SFF8024_CONNECTOR_UNSPEC        = 0x00,
 183 +       /* codes 01-05 not supportable on SFP, but some modules have single SC */
 184 +       SFF8024_CONNECTOR_SC            = 0x01,
 185 +       SFF8024_CONNECTOR_FIBERJACK     = 0x06,
 186 +       SFF8024_CONNECTOR_LC            = 0x07,
 187 +       SFF8024_CONNECTOR_MT_RJ         = 0x08,
 188 +       SFF8024_CONNECTOR_MU            = 0x09,
 189 +       SFF8024_CONNECTOR_SG            = 0x0a,
 190 +       SFF8024_CONNECTOR_OPTICAL_PIGTAIL= 0x0b,
 191 +       SFF8024_CONNECTOR_MPO_1X12      = 0x0c,
 192 +       SFF8024_CONNECTOR_MPO_2X16      = 0x0d,
 193 +       SFF8024_CONNECTOR_HSSDC_II      = 0x20,
 194 +       SFF8024_CONNECTOR_COPPER_PIGTAIL= 0x21,
 195 +       SFF8024_CONNECTOR_RJ45          = 0x22,
 196 +       SFF8024_CONNECTOR_NOSEPARATE    = 0x23,
 197 +       SFF8024_CONNECTOR_MXC_2X16      = 0x24,
 198 +
 199 +       SFF8024_ECC_UNSPEC              = 0x00,
 200 +       SFF8024_ECC_100G_25GAUI_C2M_AOC = 0x01,
 201 +       SFF8024_ECC_100GBASE_SR4_25GBASE_SR = 0x02,
 202 +       SFF8024_ECC_100GBASE_LR4_25GBASE_LR = 0x03,
 203 +       SFF8024_ECC_100GBASE_ER4_25GBASE_ER = 0x04,
 204 +       SFF8024_ECC_100GBASE_SR10       = 0x05,
 205 +       SFF8024_ECC_100GBASE_CR4        = 0x0b,
 206 +       SFF8024_ECC_25GBASE_CR_S        = 0x0c,
 207 +       SFF8024_ECC_25GBASE_CR_N        = 0x0d,
 208 +       SFF8024_ECC_10GBASE_T_SFI       = 0x16,
 209 +       SFF8024_ECC_10GBASE_T_SR        = 0x1c,
 210 +       SFF8024_ECC_5GBASE_T            = 0x1d,
 211 +       SFF8024_ECC_2_5GBASE_T          = 0x1e,
 212 +};
 213 +
 214  /* SFP EEPROM registers */
 215  enum {
 216         SFP_PHYS_ID                     = 0x00,
 217 @@ -309,34 +364,7 @@ enum {
 218         SFP_SFF8472_COMPLIANCE          = 0x5e,
 219         SFP_CC_EXT                      = 0x5f,
 220
 221 -       SFP_PHYS_ID_SFF                 = 0x02,
 222 -       SFP_PHYS_ID_SFP                 = 0x03,
 223         SFP_PHYS_EXT_ID_SFP             = 0x04,
 224 -       SFP_CONNECTOR_UNSPEC            = 0x00,
 225 -       /* codes 01-05 not supportable on SFP, but some modules have single SC */
 226 -       SFP_CONNECTOR_SC                = 0x01,
 227 -       SFP_CONNECTOR_FIBERJACK         = 0x06,
 228 -       SFP_CONNECTOR_LC                = 0x07,
 229 -       SFP_CONNECTOR_MT_RJ             = 0x08,
 230 -       SFP_CONNECTOR_MU                = 0x09,
 231 -       SFP_CONNECTOR_SG                = 0x0a,
 232 -       SFP_CONNECTOR_OPTICAL_PIGTAIL   = 0x0b,
 233 -       SFP_CONNECTOR_MPO_1X12          = 0x0c,
 234 -       SFP_CONNECTOR_MPO_2X16          = 0x0d,
 235 -       SFP_CONNECTOR_HSSDC_II          = 0x20,
 236 -       SFP_CONNECTOR_COPPER_PIGTAIL    = 0x21,
 237 -       SFP_CONNECTOR_RJ45              = 0x22,
 238 -       SFP_CONNECTOR_NOSEPARATE        = 0x23,
 239 -       SFP_CONNECTOR_MXC_2X16          = 0x24,
 240 -       SFP_ENCODING_UNSPEC             = 0x00,
 241 -       SFP_ENCODING_8B10B              = 0x01,
 242 -       SFP_ENCODING_4B5B               = 0x02,
 243 -       SFP_ENCODING_NRZ                = 0x03,
 244 -       SFP_ENCODING_8472_MANCHESTER    = 0x04,
 245 -       SFP_ENCODING_8472_SONET         = 0x05,
 246 -       SFP_ENCODING_8472_64B66B        = 0x06,
 247 -       SFP_ENCODING_256B257B           = 0x07,
 248 -       SFP_ENCODING_PAM4               = 0x08,
 249         SFP_OPTIONS_HIGH_POWER_LEVEL    = BIT(13),
 250         SFP_OPTIONS_PAGING_A2           = BIT(12),
 251         SFP_OPTIONS_RETIMER             = BIT(11),