drivers/net/bnxt/tf_core/tf_device.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019-2020 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #include "tf_device.h"
   7 #include "tf_device_p4.h"
   8 #include "tfp.h"
   9 #include "tf_em.h"
  10
  11 struct tf;
  12
  13 /* Forward declarations */
  14 static int tf_dev_unbind_p4(struct tf *tfp);
  15
  16 /**
  17  * Device specific bind function, WH+
  18  *
  19  * [in] tfp
  20  *   Pointer to TF handle
  21  *
  22  * [in] shadow_copy
  23  *   Flag controlling shadow copy DB creation
  24  *
  25  * [in] resources
  26  *   Pointer to resource allocation information
  27  *
  28  * [out] dev_handle
  29  *   Device handle
  30  *
  31  * Returns
  32  *   - (0) if successful.
  33  *   - (-EINVAL) on parameter or internal failure.
  34  */
  35 static int
  36 tf_dev_bind_p4(struct tf *tfp,
  37                bool shadow_copy,
  38                struct tf_session_resources *resources,
  39                struct tf_dev_info *dev_handle)
  40 {
  41         int rc;
  42         int frc;
  43         struct tf_ident_cfg_parms ident_cfg;
  44         struct tf_tbl_cfg_parms tbl_cfg;
  45         struct tf_tcam_cfg_parms tcam_cfg;
  46         struct tf_em_cfg_parms em_cfg;
  47         struct tf_if_tbl_cfg_parms if_tbl_cfg;
  48         struct tf_global_cfg_cfg_parms global_cfg;
  49
  50         dev_handle->type = TF_DEVICE_TYPE_WH;
  51         /* Initial function initialization */
  52         dev_handle->ops = &tf_dev_ops_p4_init;
  53
  54         /* Initialize the modules */
  55
  56         ident_cfg.num_elements = TF_IDENT_TYPE_MAX;
  57         ident_cfg.cfg = tf_ident_p4;
  58         ident_cfg.shadow_copy = shadow_copy;
  59         ident_cfg.resources = resources;
  60         rc = tf_ident_bind(tfp, &ident_cfg);
  61         if (rc) {
  62                 TFP_DRV_LOG(ERR,
  63                             "Identifier initialization failure\n");
  64                 goto fail;
  65         }
  66
  67         tbl_cfg.num_elements = TF_TBL_TYPE_MAX;
  68         tbl_cfg.cfg = tf_tbl_p4;
  69         tbl_cfg.shadow_copy = shadow_copy;
  70         tbl_cfg.resources = resources;
  71         rc = tf_tbl_bind(tfp, &tbl_cfg);
  72         if (rc) {
  73                 TFP_DRV_LOG(ERR,
  74                             "Table initialization failure\n");
  75                 goto fail;
  76         }
  77
  78         tcam_cfg.num_elements = TF_TCAM_TBL_TYPE_MAX;
  79         tcam_cfg.cfg = tf_tcam_p4;
  80         tcam_cfg.shadow_copy = shadow_copy;
  81         tcam_cfg.resources = resources;
  82         rc = tf_tcam_bind(tfp, &tcam_cfg);
  83         if (rc) {
  84                 TFP_DRV_LOG(ERR,
  85                             "TCAM initialization failure\n");
  86                 goto fail;
  87         }
  88
  89         /*
  90          * EEM
  91          */
  92         em_cfg.num_elements = TF_EM_TBL_TYPE_MAX;
  93         em_cfg.cfg = tf_em_ext_p4;
  94         em_cfg.resources = resources;
  95 #ifdef TF_USE_SYSTEM_MEM
  96         em_cfg.mem_type = TF_EEM_MEM_TYPE_SYSTEM;
  97 #else
  98         em_cfg.mem_type = TF_EEM_MEM_TYPE_HOST;
  99 #endif
 100         rc = tf_em_ext_common_bind(tfp, &em_cfg);
 101         if (rc) {
 102                 TFP_DRV_LOG(ERR,
 103                             "EEM initialization failure\n");
 104                 goto fail;
 105         }
 106
 107         /*
 108          * EM
 109          */
 110         em_cfg.num_elements = TF_EM_TBL_TYPE_MAX;
 111         em_cfg.cfg = tf_em_int_p4;
 112         em_cfg.resources = resources;
 113         em_cfg.mem_type = 0; /* Not used by EM */
 114
 115         rc = tf_em_int_bind(tfp, &em_cfg);
 116         if (rc) {
 117                 TFP_DRV_LOG(ERR,
 118                             "EM initialization failure\n");
 119                 goto fail;
 120         }
 121
 122         /*
 123          * IF_TBL
 124          */
 125         if_tbl_cfg.num_elements = TF_IF_TBL_TYPE_MAX;
 126         if_tbl_cfg.cfg = tf_if_tbl_p4;
 127         if_tbl_cfg.shadow_copy = shadow_copy;
 128         rc = tf_if_tbl_bind(tfp, &if_tbl_cfg);
 129         if (rc) {
 130                 TFP_DRV_LOG(ERR,
 131                             "IF Table initialization failure\n");
 132                 goto fail;
 133         }
 134
 135         /*
 136          * GLOBAL_CFG
 137          */
 138         global_cfg.num_elements = TF_GLOBAL_CFG_TYPE_MAX;
 139         global_cfg.cfg = tf_global_cfg_p4;
 140         rc = tf_global_cfg_bind(tfp, &global_cfg);
 141         if (rc) {
 142                 TFP_DRV_LOG(ERR,
 143                             "Global Cfg initialization failure\n");
 144                 goto fail;
 145         }
 146
 147         /* Final function initialization */
 148         dev_handle->ops = &tf_dev_ops_p4;
 149
 150         return 0;
 151
 152  fail:
 153         /* Cleanup of already created modules */
 154         frc = tf_dev_unbind_p4(tfp);
 155         if (frc)
 156                 return frc;
 157
 158         return rc;
 159 }
 160
 161 /**
 162  * Device specific unbind function, WH+
 163  *
 164  * [in] tfp
 165  *   Pointer to TF handle
 166  *
 167  * Returns
 168  *   - (0) if successful.
 169  *   - (-EINVAL) on failure.
 170  */
 171 static int
 172 tf_dev_unbind_p4(struct tf *tfp)
 173 {
 174         int rc = 0;
 175         bool fail = false;
 176
 177         /* Unbind all the support modules. As this is only done on
 178          * close we only report errors as everything has to be cleaned
 179          * up regardless.
 180          *
 181          * In case of residuals TCAMs are cleaned up first as to
 182          * invalidate the pipeline in a clean manner.
 183          */
 184         rc = tf_tcam_unbind(tfp);
 185         if (rc) {
 186                 TFP_DRV_LOG(ERR,
 187                             "Device unbind failed, TCAM\n");
 188                 fail = true;
 189         }
 190
 191         rc = tf_ident_unbind(tfp);
 192         if (rc) {
 193                 TFP_DRV_LOG(ERR,
 194                             "Device unbind failed, Identifier\n");
 195                 fail = true;
 196         }
 197
 198         rc = tf_tbl_unbind(tfp);
 199         if (rc) {
 200                 TFP_DRV_LOG(ERR,
 201                             "Device unbind failed, Table Type\n");
 202                 fail = true;
 203         }
 204
 205         rc = tf_em_ext_common_unbind(tfp);
 206         if (rc) {
 207                 TFP_DRV_LOG(ERR,
 208                             "Device unbind failed, EEM\n");
 209                 fail = true;
 210         }
 211
 212         rc = tf_em_int_unbind(tfp);
 213         if (rc) {
 214                 TFP_DRV_LOG(ERR,
 215                             "Device unbind failed, EM\n");
 216                 fail = true;
 217         }
 218
 219         rc = tf_if_tbl_unbind(tfp);
 220         if (rc) {
 221                 TFP_DRV_LOG(ERR,
 222                             "Device unbind failed, IF Table Type\n");
 223                 fail = true;
 224         }
 225
 226         rc = tf_global_cfg_unbind(tfp);
 227         if (rc) {
 228                 TFP_DRV_LOG(ERR,
 229                             "Device unbind failed, Global Cfg Type\n");
 230                 fail = true;
 231         }
 232
 233         if (fail)
 234                 return -1;
 235
 236         return rc;
 237 }
 238
 239 int
 240 tf_dev_bind(struct tf *tfp __rte_unused,
 241             enum tf_device_type type,
 242             bool shadow_copy,
 243             struct tf_session_resources *resources,
 244             struct tf_dev_info *dev_handle)
 245 {
 246         switch (type) {
 247         case TF_DEVICE_TYPE_WH:
 248                 return tf_dev_bind_p4(tfp,
 249                                       shadow_copy,
 250                                       resources,
 251                                       dev_handle);
 252         default:
 253                 TFP_DRV_LOG(ERR,
 254                             "No such device\n");
 255                 return -ENODEV;
 256         }
 257 }
 258
 259 int
 260 tf_dev_unbind(struct tf *tfp,
 261               struct tf_dev_info *dev_handle)
 262 {
 263         switch (dev_handle->type) {
 264         case TF_DEVICE_TYPE_WH:
 265                 return tf_dev_unbind_p4(tfp);
 266         default:
 267                 TFP_DRV_LOG(ERR,
 268                             "No such device\n");
 269                 return -ENODEV;
 270         }
 271 }