target/linux/layerscape/patches-5.4/701-net-0215-dpaa2-eth-Add-support-for-new-link-state-APIs.patch

   1 From 0153f87972bfa3ef33bf369b8e91142f7c2b284a Mon Sep 17 00:00:00 2001
   2 From: Ioana Radulescu <ruxandra.radulescu@nxp.com>
   3 Date: Wed, 17 Oct 2018 20:14:24 +0300
   4 Subject: [PATCH] dpaa2-eth: Add support for new link state APIs
   5
   6 Add v2 of dpni_get_link_state() and dpni_set_link_cfg() commands.
   7 The new version allows setting & getting advertised and supported
   8 link options.
   9
  10 Signed-off-by: Valentin Catalin Neacsu <valentin-catalin.neacsu@nxp.com>
  11 Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
  12 ---
  13  drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h | 33 ++++++++++++
  14  drivers/net/ethernet/freescale/dpaa2/dpni.c     | 70 +++++++++++++++++++++++++
  15  drivers/net/ethernet/freescale/dpaa2/dpni.h     | 27 ++++++++++
  16  3 files changed, 130 insertions(+)
  17
  18 --- a/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h
  19 +++ b/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h
  20 @@ -44,9 +44,11 @@
  21  #define DPNI_CMDID_GET_QDID                            DPNI_CMD(0x210)
  22  #define DPNI_CMDID_GET_TX_DATA_OFFSET                  DPNI_CMD(0x212)
  23  #define DPNI_CMDID_GET_LINK_STATE                      DPNI_CMD(0x215)
  24 +#define DPNI_CMDID_GET_LINK_STATE_V2                   DPNI_CMD_V2(0x215)
  25  #define DPNI_CMDID_SET_MAX_FRAME_LENGTH                        DPNI_CMD(0x216)
  26  #define DPNI_CMDID_GET_MAX_FRAME_LENGTH                        DPNI_CMD(0x217)
  27  #define DPNI_CMDID_SET_LINK_CFG                                DPNI_CMD(0x21A)
  28 +#define DPNI_CMDID_SET_LINK_CFG_V2                     DPNI_CMD_V2(0x21A)
  29  #define DPNI_CMDID_SET_TX_SHAPING                      DPNI_CMD_V2(0x21B)
  30
  31  #define DPNI_CMDID_SET_MCAST_PROMISC                   DPNI_CMD(0x220)
  32 @@ -304,8 +306,22 @@ struct dpni_cmd_link_cfg {
  33         __le64 options;
  34  };
  35
  36 +struct dpni_cmd_set_link_cfg_v2 {
  37 +       /* cmd word 0 */
  38 +       __le64 pad0;
  39 +       /* cmd word 1 */
  40 +       __le32 rate;
  41 +       __le32 pad1;
  42 +       /* cmd word 2 */
  43 +       __le64 options;
  44 +       /* cmd word 3 */
  45 +       __le64 advertising;
  46 +};
  47 +
  48  #define DPNI_LINK_STATE_SHIFT          0
  49  #define DPNI_LINK_STATE_SIZE           1
  50 +#define DPNI_STATE_VALID_SHIFT         1
  51 +#define DPNI_STATE_VALID_SIZE          1
  52
  53  struct dpni_rsp_get_link_state {
  54         /* response word 0 */
  55 @@ -320,6 +336,23 @@ struct dpni_rsp_get_link_state {
  56         __le64 options;
  57  };
  58
  59 +struct dpni_rsp_get_link_state_v2 {
  60 +       /* response word 0 */
  61 +       __le32 pad0;
  62 +       /* from LSB: up:1, valid:1 */
  63 +       u8 flags;
  64 +       u8 pad1[3];
  65 +       /* response word 1 */
  66 +       __le32 rate;
  67 +       __le32 pad2;
  68 +       /* response word 2 */
  69 +       __le64 options;
  70 +       /* cmd word 3 */
  71 +       __le64 supported;
  72 +       /* cmd word 4 */
  73 +       __le64 advertising;
  74 +};
  75 +
  76  #define DPNI_COUPLED_SHIFT     0
  77  #define DPNI_COUPLED_SIZE      1
  78
  79 --- a/drivers/net/ethernet/freescale/dpaa2/dpni.c
  80 +++ b/drivers/net/ethernet/freescale/dpaa2/dpni.c
  81 @@ -853,6 +853,36 @@ int dpni_set_link_cfg(struct fsl_mc_io *
  82  }
  83
  84  /**
  85 + * dpni_set_link_cfg_v2() - set the link configuration.
  86 + * @mc_io:      Pointer to MC portal's I/O object
  87 + * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
  88 + * @token:      Token of DPNI object
  89 + * @cfg:        Link configuration
  90 + *
  91 + * Return:      '0' on Success; Error code otherwise.
  92 + */
  93 +int dpni_set_link_cfg_v2(struct fsl_mc_io *mc_io,
  94 +                        u32 cmd_flags,
  95 +                        u16 token,
  96 +                        const struct dpni_link_cfg *cfg)
  97 +{
  98 +       struct fsl_mc_command cmd = { 0 };
  99 +       struct dpni_cmd_set_link_cfg_v2 *cmd_params;
 100 +
 101 +       /* prepare command */
 102 +       cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_LINK_CFG_V2,
 103 +                                         cmd_flags,
 104 +                                         token);
 105 +       cmd_params = (struct dpni_cmd_set_link_cfg_v2 *)cmd.params;
 106 +       cmd_params->rate = cpu_to_le32(cfg->rate);
 107 +       cmd_params->options = cpu_to_le64(cfg->options);
 108 +       cmd_params->advertising = cpu_to_le64(cfg->advertising);
 109 +
 110 +       /* send command to mc*/
 111 +       return mc_send_command(mc_io, &cmd);
 112 +}
 113 +
 114 +/**
 115   * dpni_get_link_cfg() - return the link configuration
 116   * @mc_io:     Pointer to MC portal's I/O object
 117   * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
 118 @@ -924,6 +954,46 @@ int dpni_get_link_state(struct fsl_mc_io
 119
 120         return 0;
 121  }
 122 +
 123 +/**
 124 + * dpni_get_link_state_v2() - Return the link state (either up or down)
 125 + * @mc_io:      Pointer to MC portal's I/O object
 126 + * @cmd_flags:  Command flags; one or more of 'MC_CMD_FLAG_'
 127 + * @token:      Token of DPNI object
 128 + * @state:      Returned link state;
 129 + *
 130 + * Return:      '0' on Success; Error code otherwise.
 131 + */
 132 +int dpni_get_link_state_v2(struct fsl_mc_io *mc_io,
 133 +                          u32 cmd_flags,
 134 +                          u16 token,
 135 +                          struct dpni_link_state *state)
 136 +{
 137 +       struct fsl_mc_command cmd = { 0 };
 138 +       struct dpni_rsp_get_link_state_v2 *rsp_params;
 139 +       int err;
 140 +
 141 +       /* prepare command */
 142 +       cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_LINK_STATE_V2,
 143 +                                         cmd_flags,
 144 +                                         token);
 145 +
 146 +       /* send command to mc*/
 147 +       err = mc_send_command(mc_io, &cmd);
 148 +       if (err)
 149 +               return err;
 150 +
 151 +       /* retrieve response parameters */
 152 +       rsp_params = (struct dpni_rsp_get_link_state_v2 *)cmd.params;
 153 +       state->up = dpni_get_field(rsp_params->flags, LINK_STATE);
 154 +       state->state_valid = dpni_get_field(rsp_params->flags, STATE_VALID);
 155 +       state->rate = le32_to_cpu(rsp_params->rate);
 156 +       state->options = le64_to_cpu(rsp_params->options);
 157 +       state->supported = le64_to_cpu(rsp_params->supported);
 158 +       state->advertising = le64_to_cpu(rsp_params->advertising);
 159 +
 160 +       return 0;
 161 +}
 162
 163  /**
 164   * dpni_set_tx_shaping() - Set the transmit shaping
 165 --- a/drivers/net/ethernet/freescale/dpaa2/dpni.h
 166 +++ b/drivers/net/ethernet/freescale/dpaa2/dpni.h
 167 @@ -522,6 +522,19 @@ int dpni_reset_statistics(struct fsl_mc_
 168   * Enable priority flow control pause frames
 169   */
 170  #define DPNI_LINK_OPT_PFC_PAUSE                0x0000000000000010ULL
 171 +/**
 172 + * Advertised link speeds
 173 + */
 174 +#define DPNI_ADVERTISED_10BASET_FULL           0x0000000000000001ULL
 175 +#define DPNI_ADVERTISED_100BASET_FULL          0x0000000000000002ULL
 176 +#define DPNI_ADVERTISED_1000BASET_FULL         0x0000000000000004ULL
 177 +#define DPNI_ADVERTISED_10000BASET_FULL        0x0000000000000010ULL
 178 +#define DPNI_ADVERTISED_2500BASEX_FULL         0x0000000000000020ULL
 179 +
 180 +/**
 181 + * Advertise auto-negotiation enabled
 182 + */
 183 +#define DPNI_ADVERTISED_AUTONEG                0x0000000000000008ULL
 184
 185  /**
 186   * struct - Structure representing DPNI link configuration
 187 @@ -531,6 +544,7 @@ int dpni_reset_statistics(struct fsl_mc_
 188  struct dpni_link_cfg {
 189         u32 rate;
 190         u64 options;
 191 +       u64 advertising;
 192  };
 193
 194  int dpni_set_link_cfg(struct fsl_mc_io                 *mc_io,
 195 @@ -538,6 +552,11 @@ int dpni_set_link_cfg(struct fsl_mc_io
 196                       u16                               token,
 197                       const struct dpni_link_cfg        *cfg);
 198
 199 +int dpni_set_link_cfg_v2(struct fsl_mc_io              *mc_io,
 200 +                        u32                            cmd_flags,
 201 +                        u16                            token,
 202 +                        const struct dpni_link_cfg     *cfg);
 203 +
 204  int dpni_get_link_cfg(struct fsl_mc_io                 *mc_io,
 205                       u32                               cmd_flags,
 206                       u16                               token,
 207 @@ -552,7 +571,10 @@ int dpni_get_link_cfg(struct fsl_mc_io
 208  struct dpni_link_state {
 209         u32     rate;
 210         u64     options;
 211 +       u64     supported;
 212 +       u64     advertising;
 213         int     up;
 214 +       int     state_valid;
 215  };
 216
 217  int dpni_get_link_state(struct fsl_mc_io       *mc_io,
 218 @@ -560,6 +582,11 @@ int dpni_get_link_state(struct fsl_mc_io
 219                         u16                     token,
 220                         struct dpni_link_state  *state);
 221
 222 +int dpni_get_link_state_v2(struct fsl_mc_io    *mc_io,
 223 +                          u32                  cmd_flags,
 224 +                          u16                  token,
 225 +                          struct dpni_link_state       *state);
 226 +
 227  /**
 228   * struct dpni_tx_shaping - Structure representing DPNI tx shaping configuration
 229   * @rate_limit: rate in Mbps