lib/librte_pmd_i40e/i40e_ethdev_vf.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <sys/queue.h>
  35 #include <stdio.h>
  36 #include <errno.h>
  37 #include <stdint.h>
  38 #include <string.h>
  39 #include <unistd.h>
  40 #include <stdarg.h>
  41 #include <inttypes.h>
  42 #include <rte_byteorder.h>
  43 #include <rte_common.h>
  44 #include <rte_cycles.h>
  45
  46 #include <rte_interrupts.h>
  47 #include <rte_log.h>
  48 #include <rte_debug.h>
  49 #include <rte_pci.h>
  50 #include <rte_atomic.h>
  51 #include <rte_branch_prediction.h>
  52 #include <rte_memory.h>
  53 #include <rte_memzone.h>
  54 #include <rte_eal.h>
  55 #include <rte_alarm.h>
  56 #include <rte_ether.h>
  57 #include <rte_ethdev.h>
  58 #include <rte_atomic.h>
  59 #include <rte_malloc.h>
  60 #include <rte_dev.h>
  61
  62 #include "i40e_logs.h"
  63 #include "i40e/i40e_prototype.h"
  64 #include "i40e/i40e_adminq_cmd.h"
  65 #include "i40e/i40e_type.h"
  66
  67 #include "i40e_rxtx.h"
  68 #include "i40e_ethdev.h"
  69 #include "i40e_pf.h"
  70 #define I40EVF_VSI_DEFAULT_MSIX_INTR 1
  71
  72 /* busy wait delay in msec */
  73 #define I40EVF_BUSY_WAIT_DELAY 10
  74 #define I40EVF_BUSY_WAIT_COUNT 50
  75 #define MAX_RESET_WAIT_CNT     20
  76
  77 struct i40evf_arq_msg_info {
  78         enum i40e_virtchnl_ops ops;
  79         enum i40e_status_code result;
  80         uint16_t buf_len;
  81         uint16_t msg_len;
  82         uint8_t *msg;
  83 };
  84
  85 struct vf_cmd_info {
  86         enum i40e_virtchnl_ops ops;
  87         uint8_t *in_args;
  88         uint32_t in_args_size;
  89         uint8_t *out_buffer;
  90         /* Input & output type. pass in buffer size and pass out
  91          * actual return result
  92          */
  93         uint32_t out_size;
  94 };
  95
  96 enum i40evf_aq_result {
  97         I40EVF_MSG_ERR = -1, /* Meet error when accessing admin queue */
  98         I40EVF_MSG_NON,      /* Read nothing from admin queue */
  99         I40EVF_MSG_SYS,      /* Read system msg from admin queue */
 100         I40EVF_MSG_CMD,      /* Read async command result */
 101 };
 102
 103 /* A share buffer to store the command result from PF driver */
 104 static uint8_t cmd_result_buffer[I40E_AQ_BUF_SZ];
 105
 106 static int i40evf_dev_configure(struct rte_eth_dev *dev);
 107 static int i40evf_dev_start(struct rte_eth_dev *dev);
 108 static void i40evf_dev_stop(struct rte_eth_dev *dev);
 109 static void i40evf_dev_info_get(struct rte_eth_dev *dev,
 110                                 struct rte_eth_dev_info *dev_info);
 111 static int i40evf_dev_link_update(struct rte_eth_dev *dev,
 112                                   __rte_unused int wait_to_complete);
 113 static void i40evf_dev_stats_get(struct rte_eth_dev *dev,
 114                                 struct rte_eth_stats *stats);
 115 static int i40evf_vlan_filter_set(struct rte_eth_dev *dev,
 116                                   uint16_t vlan_id, int on);
 117 static void i40evf_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 118 static int i40evf_vlan_pvid_set(struct rte_eth_dev *dev, uint16_t pvid,
 119                                 int on);
 120 static void i40evf_dev_close(struct rte_eth_dev *dev);
 121 static void i40evf_dev_promiscuous_enable(struct rte_eth_dev *dev);
 122 static void i40evf_dev_promiscuous_disable(struct rte_eth_dev *dev);
 123 static void i40evf_dev_allmulticast_enable(struct rte_eth_dev *dev);
 124 static void i40evf_dev_allmulticast_disable(struct rte_eth_dev *dev);
 125 static int i40evf_get_link_status(struct rte_eth_dev *dev,
 126                                   struct rte_eth_link *link);
 127 static int i40evf_init_vlan(struct rte_eth_dev *dev);
 128 static int i40evf_dev_rx_queue_start(struct rte_eth_dev *dev,
 129                                      uint16_t rx_queue_id);
 130 static int i40evf_dev_rx_queue_stop(struct rte_eth_dev *dev,
 131                                     uint16_t rx_queue_id);
 132 static int i40evf_dev_tx_queue_start(struct rte_eth_dev *dev,
 133                                      uint16_t tx_queue_id);
 134 static int i40evf_dev_tx_queue_stop(struct rte_eth_dev *dev,
 135                                     uint16_t tx_queue_id);
 136 static int i40evf_dev_rss_reta_update(struct rte_eth_dev *dev,
 137                         struct rte_eth_rss_reta_entry64 *reta_conf,
 138                         uint16_t reta_size);
 139 static int i40evf_dev_rss_reta_query(struct rte_eth_dev *dev,
 140                         struct rte_eth_rss_reta_entry64 *reta_conf,
 141                         uint16_t reta_size);
 142 static int i40evf_config_rss(struct i40e_vf *vf);
 143 static int i40evf_dev_rss_hash_update(struct rte_eth_dev *dev,
 144                                       struct rte_eth_rss_conf *rss_conf);
 145 static int i40evf_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
 146                                         struct rte_eth_rss_conf *rss_conf);
 147
 148 /* Default hash key buffer for RSS */
 149 static uint32_t rss_key_default[I40E_VFQF_HKEY_MAX_INDEX + 1];
 150
 151 static struct eth_dev_ops i40evf_eth_dev_ops = {
 152         .dev_configure        = i40evf_dev_configure,
 153         .dev_start            = i40evf_dev_start,
 154         .dev_stop             = i40evf_dev_stop,
 155         .promiscuous_enable   = i40evf_dev_promiscuous_enable,
 156         .promiscuous_disable  = i40evf_dev_promiscuous_disable,
 157         .allmulticast_enable  = i40evf_dev_allmulticast_enable,
 158         .allmulticast_disable = i40evf_dev_allmulticast_disable,
 159         .link_update          = i40evf_dev_link_update,
 160         .stats_get            = i40evf_dev_stats_get,
 161         .dev_close            = i40evf_dev_close,
 162         .dev_infos_get        = i40evf_dev_info_get,
 163         .vlan_filter_set      = i40evf_vlan_filter_set,
 164         .vlan_offload_set     = i40evf_vlan_offload_set,
 165         .vlan_pvid_set        = i40evf_vlan_pvid_set,
 166         .rx_queue_start       = i40evf_dev_rx_queue_start,
 167         .rx_queue_stop        = i40evf_dev_rx_queue_stop,
 168         .tx_queue_start       = i40evf_dev_tx_queue_start,
 169         .tx_queue_stop        = i40evf_dev_tx_queue_stop,
 170         .rx_queue_setup       = i40e_dev_rx_queue_setup,
 171         .rx_queue_release     = i40e_dev_rx_queue_release,
 172         .tx_queue_setup       = i40e_dev_tx_queue_setup,
 173         .tx_queue_release     = i40e_dev_tx_queue_release,
 174         .reta_update          = i40evf_dev_rss_reta_update,
 175         .reta_query           = i40evf_dev_rss_reta_query,
 176         .rss_hash_update      = i40evf_dev_rss_hash_update,
 177         .rss_hash_conf_get    = i40evf_dev_rss_hash_conf_get,
 178 };
 179
 180 static int
 181 i40evf_set_mac_type(struct i40e_hw *hw)
 182 {
 183         int status = I40E_ERR_DEVICE_NOT_SUPPORTED;
 184
 185         if (hw->vendor_id == I40E_INTEL_VENDOR_ID) {
 186                 switch (hw->device_id) {
 187                 case I40E_DEV_ID_VF:
 188                 case I40E_DEV_ID_VF_HV:
 189                         hw->mac.type = I40E_MAC_VF;
 190                         status = I40E_SUCCESS;
 191                         break;
 192                 default:
 193                         ;
 194                 }
 195         }
 196
 197         return status;
 198 }
 199
 200 /*
 201  * Parse admin queue message.
 202  *
 203  * return value:
 204  *  < 0: meet error
 205  *  0: read sys msg
 206  *  > 0: read cmd result
 207  */
 208 static enum i40evf_aq_result
 209 i40evf_parse_pfmsg(struct i40e_vf *vf,
 210                    struct i40e_arq_event_info *event,
 211                    struct i40evf_arq_msg_info *data)
 212 {
 213         enum i40e_virtchnl_ops opcode = (enum i40e_virtchnl_ops)\
 214                         rte_le_to_cpu_32(event->desc.cookie_high);
 215         enum i40e_status_code retval = (enum i40e_status_code)\
 216                         rte_le_to_cpu_32(event->desc.cookie_low);
 217         enum i40evf_aq_result ret = I40EVF_MSG_CMD;
 218
 219         /* pf sys event */
 220         if (opcode == I40E_VIRTCHNL_OP_EVENT) {
 221                 struct i40e_virtchnl_pf_event *vpe =
 222                         (struct i40e_virtchnl_pf_event *)event->msg_buf;
 223
 224                 /* Initialize ret to sys event */
 225                 ret = I40EVF_MSG_SYS;
 226                 switch (vpe->event) {
 227                 case I40E_VIRTCHNL_EVENT_LINK_CHANGE:
 228                         vf->link_up =
 229                                 vpe->event_data.link_event.link_status;
 230                         vf->pend_msg |= PFMSG_LINK_CHANGE;
 231                         PMD_DRV_LOG(INFO, "Link status update:%s",
 232                                     vf->link_up ? "up" : "down");
 233                         break;
 234                 case I40E_VIRTCHNL_EVENT_RESET_IMPENDING:
 235                         vf->vf_reset = true;
 236                         vf->pend_msg |= PFMSG_RESET_IMPENDING;
 237                         PMD_DRV_LOG(INFO, "vf is reseting");
 238                         break;
 239                 case I40E_VIRTCHNL_EVENT_PF_DRIVER_CLOSE:
 240                         vf->dev_closed = true;
 241                         vf->pend_msg |= PFMSG_DRIVER_CLOSE;
 242                         PMD_DRV_LOG(INFO, "PF driver closed");
 243                         break;
 244                 default:
 245                         PMD_DRV_LOG(ERR, "%s: Unknown event %d from pf",
 246                                     __func__, vpe->event);
 247                 }
 248         } else {
 249                 /* async reply msg on command issued by vf previously */
 250                 ret = I40EVF_MSG_CMD;
 251                 /* Actual data length read from PF */
 252                 data->msg_len = event->msg_len;
 253         }
 254         /* fill the ops and result to notify VF */
 255         data->result = retval;
 256         data->ops = opcode;
 257
 258         return ret;
 259 }
 260
 261 /*
 262  * Read data in admin queue to get msg from pf driver
 263  */
 264 static enum i40evf_aq_result
 265 i40evf_read_pfmsg(struct rte_eth_dev *dev, struct i40evf_arq_msg_info *data)
 266 {
 267         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 268         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 269         struct i40e_arq_event_info event;
 270         int ret;
 271         enum i40evf_aq_result result = I40EVF_MSG_NON;
 272
 273         event.buf_len = data->buf_len;
 274         event.msg_buf = data->msg;
 275         ret = i40e_clean_arq_element(hw, &event, NULL);
 276         /* Can't read any msg from adminQ */
 277         if (ret) {
 278                 if (ret == I40E_ERR_ADMIN_QUEUE_NO_WORK)
 279                         result = I40EVF_MSG_NON;
 280                 else
 281                         result = I40EVF_MSG_ERR;
 282                 return result;
 283         }
 284
 285         /* Parse the event */
 286         result = i40evf_parse_pfmsg(vf, &event, data);
 287
 288         return result;
 289 }
 290
 291 /*
 292  * Polling read until command result return from pf driver or meet error.
 293  */
 294 static int
 295 i40evf_wait_cmd_done(struct rte_eth_dev *dev,
 296                      struct i40evf_arq_msg_info *data)
 297 {
 298         int i = 0;
 299         enum i40evf_aq_result ret;
 300
 301 #define MAX_TRY_TIMES 10
 302 #define ASQ_DELAY_MS  50
 303         do {
 304                 /* Delay some time first */
 305                 rte_delay_ms(ASQ_DELAY_MS);
 306                 ret = i40evf_read_pfmsg(dev, data);
 307                 if (ret == I40EVF_MSG_CMD)
 308                         return 0;
 309                 else if (ret == I40EVF_MSG_ERR)
 310                         return -1;
 311
 312                 /* If don't read msg or read sys event, continue */
 313         } while(i++ < MAX_TRY_TIMES);
 314
 315         return -1;
 316 }
 317
 318 /**
 319  * clear current command. Only call in case execute
 320  * _atomic_set_cmd successfully.
 321  */
 322 static inline void
 323 _clear_cmd(struct i40e_vf *vf)
 324 {
 325         rte_wmb();
 326         vf->pend_cmd = I40E_VIRTCHNL_OP_UNKNOWN;
 327 }
 328
 329 /*
 330  * Check there is pending cmd in execution. If none, set new command.
 331  */
 332 static inline int
 333 _atomic_set_cmd(struct i40e_vf *vf, enum i40e_virtchnl_ops ops)
 334 {
 335         int ret = rte_atomic32_cmpset(&vf->pend_cmd,
 336                         I40E_VIRTCHNL_OP_UNKNOWN, ops);
 337
 338         if (!ret)
 339                 PMD_DRV_LOG(ERR, "There is incomplete cmd %d", vf->pend_cmd);
 340
 341         return !ret;
 342 }
 343
 344 static int
 345 i40evf_execute_vf_cmd(struct rte_eth_dev *dev, struct vf_cmd_info *args)
 346 {
 347         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 348         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 349         int err = -1;
 350         struct i40evf_arq_msg_info info;
 351
 352         if (_atomic_set_cmd(vf, args->ops))
 353                 return -1;
 354
 355         info.msg = args->out_buffer;
 356         info.buf_len = args->out_size;
 357         info.ops = I40E_VIRTCHNL_OP_UNKNOWN;
 358         info.result = I40E_SUCCESS;
 359
 360         err = i40e_aq_send_msg_to_pf(hw, args->ops, I40E_SUCCESS,
 361                      args->in_args, args->in_args_size, NULL);
 362         if (err) {
 363                 PMD_DRV_LOG(ERR, "fail to send cmd %d", args->ops);
 364                 return err;
 365         }
 366
 367         err = i40evf_wait_cmd_done(dev, &info);
 368         /* read message and it's expected one */
 369         if (!err && args->ops == info.ops)
 370                 _clear_cmd(vf);
 371         else if (err)
 372                 PMD_DRV_LOG(ERR, "Failed to read message from AdminQ");
 373         else if (args->ops != info.ops)
 374                 PMD_DRV_LOG(ERR, "command mismatch, expect %u, get %u",
 375                             args->ops, info.ops);
 376
 377         return (err | info.result);
 378 }
 379
 380 /*
 381  * Check API version with sync wait until version read or fail from admin queue
 382  */
 383 static int
 384 i40evf_check_api_version(struct rte_eth_dev *dev)
 385 {
 386         struct i40e_virtchnl_version_info version, *pver;
 387         int err;
 388         struct vf_cmd_info args;
 389         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 390
 391         version.major = I40E_VIRTCHNL_VERSION_MAJOR;
 392         version.minor = I40E_VIRTCHNL_VERSION_MINOR;
 393
 394         args.ops = I40E_VIRTCHNL_OP_VERSION;
 395         args.in_args = (uint8_t *)&version;
 396         args.in_args_size = sizeof(version);
 397         args.out_buffer = cmd_result_buffer;
 398         args.out_size = I40E_AQ_BUF_SZ;
 399
 400         err = i40evf_execute_vf_cmd(dev, &args);
 401         if (err) {
 402                 PMD_INIT_LOG(ERR, "fail to execute command OP_VERSION");
 403                 return err;
 404         }
 405
 406         pver = (struct i40e_virtchnl_version_info *)args.out_buffer;
 407         vf->version_major = pver->major;
 408         vf->version_minor = pver->minor;
 409         if (vf->version_major == I40E_DPDK_VERSION_MAJOR)
 410                 PMD_DRV_LOG(INFO, "Peer is DPDK PF host");
 411         else if ((vf->version_major == I40E_VIRTCHNL_VERSION_MAJOR) &&
 412                 (vf->version_minor == I40E_VIRTCHNL_VERSION_MINOR))
 413                 PMD_DRV_LOG(INFO, "Peer is Linux PF host");
 414         else {
 415                 PMD_INIT_LOG(ERR, "PF/VF API version mismatch:(%u.%u)-(%u.%u)",
 416                                         vf->version_major, vf->version_minor,
 417                                                 I40E_VIRTCHNL_VERSION_MAJOR,
 418                                                 I40E_VIRTCHNL_VERSION_MINOR);
 419                 return -1;
 420         }
 421
 422         return 0;
 423 }
 424
 425 static int
 426 i40evf_get_vf_resource(struct rte_eth_dev *dev)
 427 {
 428         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 429         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 430         int err;
 431         struct vf_cmd_info args;
 432         uint32_t len;
 433
 434         args.ops = I40E_VIRTCHNL_OP_GET_VF_RESOURCES;
 435         args.in_args = NULL;
 436         args.in_args_size = 0;
 437         args.out_buffer = cmd_result_buffer;
 438         args.out_size = I40E_AQ_BUF_SZ;
 439
 440         err = i40evf_execute_vf_cmd(dev, &args);
 441
 442         if (err) {
 443                 PMD_DRV_LOG(ERR, "fail to execute command OP_GET_VF_RESOURCE");
 444                 return err;
 445         }
 446
 447         len =  sizeof(struct i40e_virtchnl_vf_resource) +
 448                 I40E_MAX_VF_VSI * sizeof(struct i40e_virtchnl_vsi_resource);
 449
 450         (void)rte_memcpy(vf->vf_res, args.out_buffer,
 451                         RTE_MIN(args.out_size, len));
 452         i40e_vf_parse_hw_config(hw, vf->vf_res);
 453
 454         return 0;
 455 }
 456
 457 static int
 458 i40evf_config_promisc(struct rte_eth_dev *dev,
 459                       bool enable_unicast,
 460                       bool enable_multicast)
 461 {
 462         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 463         int err;
 464         struct vf_cmd_info args;
 465         struct i40e_virtchnl_promisc_info promisc;
 466
 467         promisc.flags = 0;
 468         promisc.vsi_id = vf->vsi_res->vsi_id;
 469
 470         if (enable_unicast)
 471                 promisc.flags |= I40E_FLAG_VF_UNICAST_PROMISC;
 472
 473         if (enable_multicast)
 474                 promisc.flags |= I40E_FLAG_VF_MULTICAST_PROMISC;
 475
 476         args.ops = I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE;
 477         args.in_args = (uint8_t *)&promisc;
 478         args.in_args_size = sizeof(promisc);
 479         args.out_buffer = cmd_result_buffer;
 480         args.out_size = I40E_AQ_BUF_SZ;
 481
 482         err = i40evf_execute_vf_cmd(dev, &args);
 483
 484         if (err)
 485                 PMD_DRV_LOG(ERR, "fail to execute command "
 486                             "CONFIG_PROMISCUOUS_MODE");
 487         return err;
 488 }
 489
 490 /* Configure vlan and double vlan offload. Use flag to specify which part to configure */
 491 static int
 492 i40evf_config_vlan_offload(struct rte_eth_dev *dev,
 493                                 bool enable_vlan_strip)
 494 {
 495         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 496         int err;
 497         struct vf_cmd_info args;
 498         struct i40e_virtchnl_vlan_offload_info offload;
 499
 500         offload.vsi_id = vf->vsi_res->vsi_id;
 501         offload.enable_vlan_strip = enable_vlan_strip;
 502
 503         args.ops = (enum i40e_virtchnl_ops)I40E_VIRTCHNL_OP_CFG_VLAN_OFFLOAD;
 504         args.in_args = (uint8_t *)&offload;
 505         args.in_args_size = sizeof(offload);
 506         args.out_buffer = cmd_result_buffer;
 507         args.out_size = I40E_AQ_BUF_SZ;
 508
 509         err = i40evf_execute_vf_cmd(dev, &args);
 510         if (err)
 511                 PMD_DRV_LOG(ERR, "fail to execute command CFG_VLAN_OFFLOAD");
 512
 513         return err;
 514 }
 515
 516 static int
 517 i40evf_config_vlan_pvid(struct rte_eth_dev *dev,
 518                                 struct i40e_vsi_vlan_pvid_info *info)
 519 {
 520         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 521         int err;
 522         struct vf_cmd_info args;
 523         struct i40e_virtchnl_pvid_info tpid_info;
 524
 525         if (dev == NULL || info == NULL) {
 526                 PMD_DRV_LOG(ERR, "invalid parameters");
 527                 return I40E_ERR_PARAM;
 528         }
 529
 530         memset(&tpid_info, 0, sizeof(tpid_info));
 531         tpid_info.vsi_id = vf->vsi_res->vsi_id;
 532         (void)rte_memcpy(&tpid_info.info, info, sizeof(*info));
 533
 534         args.ops = (enum i40e_virtchnl_ops)I40E_VIRTCHNL_OP_CFG_VLAN_PVID;
 535         args.in_args = (uint8_t *)&tpid_info;
 536         args.in_args_size = sizeof(tpid_info);
 537         args.out_buffer = cmd_result_buffer;
 538         args.out_size = I40E_AQ_BUF_SZ;
 539
 540         err = i40evf_execute_vf_cmd(dev, &args);
 541         if (err)
 542                 PMD_DRV_LOG(ERR, "fail to execute command CFG_VLAN_PVID");
 543
 544         return err;
 545 }
 546
 547 static void
 548 i40evf_fill_virtchnl_vsi_txq_info(struct i40e_virtchnl_txq_info *txq_info,
 549                                   uint16_t vsi_id,
 550                                   uint16_t queue_id,
 551                                   uint16_t nb_txq,
 552                                   struct i40e_tx_queue *txq)
 553 {
 554         txq_info->vsi_id = vsi_id;
 555         txq_info->queue_id = queue_id;
 556         if (queue_id < nb_txq) {
 557                 txq_info->ring_len = txq->nb_tx_desc;
 558                 txq_info->dma_ring_addr = txq->tx_ring_phys_addr;
 559         }
 560 }
 561
 562 static void
 563 i40evf_fill_virtchnl_vsi_rxq_info(struct i40e_virtchnl_rxq_info *rxq_info,
 564                                   uint16_t vsi_id,
 565                                   uint16_t queue_id,
 566                                   uint16_t nb_rxq,
 567                                   uint32_t max_pkt_size,
 568                                   struct i40e_rx_queue *rxq)
 569 {
 570         rxq_info->vsi_id = vsi_id;
 571         rxq_info->queue_id = queue_id;
 572         rxq_info->max_pkt_size = max_pkt_size;
 573         if (queue_id < nb_rxq) {
 574                 struct rte_pktmbuf_pool_private *mbp_priv;
 575
 576                 rxq_info->ring_len = rxq->nb_rx_desc;
 577                 rxq_info->dma_ring_addr = rxq->rx_ring_phys_addr;
 578                 mbp_priv = rte_mempool_get_priv(rxq->mp);
 579                 rxq_info->databuffer_size =
 580                         mbp_priv->mbuf_data_room_size - RTE_PKTMBUF_HEADROOM;
 581         }
 582 }
 583
 584 /* It configures VSI queues to co-work with Linux PF host */
 585 static int
 586 i40evf_configure_vsi_queues(struct rte_eth_dev *dev)
 587 {
 588         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 589         struct i40e_rx_queue **rxq =
 590                 (struct i40e_rx_queue **)dev->data->rx_queues;
 591         struct i40e_tx_queue **txq =
 592                 (struct i40e_tx_queue **)dev->data->tx_queues;
 593         struct i40e_virtchnl_vsi_queue_config_info *vc_vqci;
 594         struct i40e_virtchnl_queue_pair_info *vc_qpi;
 595         struct vf_cmd_info args;
 596         uint16_t i, nb_qp = vf->num_queue_pairs;
 597         const uint32_t size =
 598                 I40E_VIRTCHNL_CONFIG_VSI_QUEUES_SIZE(vc_vqci, nb_qp);
 599         uint8_t buff[size];
 600         int ret;
 601
 602         memset(buff, 0, sizeof(buff));
 603         vc_vqci = (struct i40e_virtchnl_vsi_queue_config_info *)buff;
 604         vc_vqci->vsi_id = vf->vsi_res->vsi_id;
 605         vc_vqci->num_queue_pairs = nb_qp;
 606
 607         for (i = 0, vc_qpi = vc_vqci->qpair; i < nb_qp; i++, vc_qpi++) {
 608                 i40evf_fill_virtchnl_vsi_txq_info(&vc_qpi->txq,
 609                         vc_vqci->vsi_id, i, dev->data->nb_tx_queues, txq[i]);
 610                 i40evf_fill_virtchnl_vsi_rxq_info(&vc_qpi->rxq,
 611                         vc_vqci->vsi_id, i, dev->data->nb_rx_queues,
 612                                         vf->max_pkt_len, rxq[i]);
 613         }
 614         memset(&args, 0, sizeof(args));
 615         args.ops = I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES;
 616         args.in_args = (uint8_t *)vc_vqci;
 617         args.in_args_size = size;
 618         args.out_buffer = cmd_result_buffer;
 619         args.out_size = I40E_AQ_BUF_SZ;
 620         ret = i40evf_execute_vf_cmd(dev, &args);
 621         if (ret)
 622                 PMD_DRV_LOG(ERR, "Failed to execute command of "
 623                         "I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES\n");
 624
 625         return ret;
 626 }
 627
 628 /* It configures VSI queues to co-work with DPDK PF host */
 629 static int
 630 i40evf_configure_vsi_queues_ext(struct rte_eth_dev *dev)
 631 {
 632         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 633         struct i40e_rx_queue **rxq =
 634                 (struct i40e_rx_queue **)dev->data->rx_queues;
 635         struct i40e_tx_queue **txq =
 636                 (struct i40e_tx_queue **)dev->data->tx_queues;
 637         struct i40e_virtchnl_vsi_queue_config_ext_info *vc_vqcei;
 638         struct i40e_virtchnl_queue_pair_ext_info *vc_qpei;
 639         struct vf_cmd_info args;
 640         uint16_t i, nb_qp = vf->num_queue_pairs;
 641         const uint32_t size =
 642                 I40E_VIRTCHNL_CONFIG_VSI_QUEUES_SIZE(vc_vqcei, nb_qp);
 643         uint8_t buff[size];
 644         int ret;
 645
 646         memset(buff, 0, sizeof(buff));
 647         vc_vqcei = (struct i40e_virtchnl_vsi_queue_config_ext_info *)buff;
 648         vc_vqcei->vsi_id = vf->vsi_res->vsi_id;
 649         vc_vqcei->num_queue_pairs = nb_qp;
 650         vc_qpei = vc_vqcei->qpair;
 651         for (i = 0; i < nb_qp; i++, vc_qpei++) {
 652                 i40evf_fill_virtchnl_vsi_txq_info(&vc_qpei->txq,
 653                         vc_vqcei->vsi_id, i, dev->data->nb_tx_queues, txq[i]);
 654                 i40evf_fill_virtchnl_vsi_rxq_info(&vc_qpei->rxq,
 655                         vc_vqcei->vsi_id, i, dev->data->nb_rx_queues,
 656                                         vf->max_pkt_len, rxq[i]);
 657                 if (i < dev->data->nb_rx_queues)
 658                         /*
 659                          * It adds extra info for configuring VSI queues, which
 660                          * is needed to enable the configurable crc stripping
 661                          * in VF.
 662                          */
 663                         vc_qpei->rxq_ext.crcstrip =
 664                                 dev->data->dev_conf.rxmode.hw_strip_crc;
 665         }
 666         memset(&args, 0, sizeof(args));
 667         args.ops =
 668                 (enum i40e_virtchnl_ops)I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES_EXT;
 669         args.in_args = (uint8_t *)vc_vqcei;
 670         args.in_args_size = size;
 671         args.out_buffer = cmd_result_buffer;
 672         args.out_size = I40E_AQ_BUF_SZ;
 673         ret = i40evf_execute_vf_cmd(dev, &args);
 674         if (ret)
 675                 PMD_DRV_LOG(ERR, "Failed to execute command of "
 676                         "I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES_EXT\n");
 677
 678         return ret;
 679 }
 680
 681 static int
 682 i40evf_configure_queues(struct rte_eth_dev *dev)
 683 {
 684         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 685
 686         if (vf->version_major == I40E_DPDK_VERSION_MAJOR)
 687                 /* To support DPDK PF host */
 688                 return i40evf_configure_vsi_queues_ext(dev);
 689         else
 690                 /* To support Linux PF host */
 691                 return i40evf_configure_vsi_queues(dev);
 692 }
 693
 694 static int
 695 i40evf_config_irq_map(struct rte_eth_dev *dev)
 696 {
 697         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 698         struct vf_cmd_info args;
 699         uint8_t cmd_buffer[sizeof(struct i40e_virtchnl_irq_map_info) + \
 700                 sizeof(struct i40e_virtchnl_vector_map)];
 701         struct i40e_virtchnl_irq_map_info *map_info;
 702         int i, err;
 703         map_info = (struct i40e_virtchnl_irq_map_info *)cmd_buffer;
 704         map_info->num_vectors = 1;
 705         map_info->vecmap[0].rxitr_idx = RTE_LIBRTE_I40E_ITR_INTERVAL / 2;
 706         map_info->vecmap[0].txitr_idx = RTE_LIBRTE_I40E_ITR_INTERVAL / 2;
 707         map_info->vecmap[0].vsi_id = vf->vsi_res->vsi_id;
 708         /* Alway use default dynamic MSIX interrupt */
 709         map_info->vecmap[0].vector_id = I40EVF_VSI_DEFAULT_MSIX_INTR;
 710         /* Don't map any tx queue */
 711         map_info->vecmap[0].txq_map = 0;
 712         map_info->vecmap[0].rxq_map = 0;
 713         for (i = 0; i < dev->data->nb_rx_queues; i++)
 714                 map_info->vecmap[0].rxq_map |= 1 << i;
 715
 716         args.ops = I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP;
 717         args.in_args = (u8 *)cmd_buffer;
 718         args.in_args_size = sizeof(cmd_buffer);
 719         args.out_buffer = cmd_result_buffer;
 720         args.out_size = I40E_AQ_BUF_SZ;
 721         err = i40evf_execute_vf_cmd(dev, &args);
 722         if (err)
 723                 PMD_DRV_LOG(ERR, "fail to execute command OP_ENABLE_QUEUES");
 724
 725         return err;
 726 }
 727
 728 static int
 729 i40evf_switch_queue(struct rte_eth_dev *dev, bool isrx, uint16_t qid,
 730                                 bool on)
 731 {
 732         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 733         struct i40e_virtchnl_queue_select queue_select;
 734         int err;
 735         struct vf_cmd_info args;
 736         memset(&queue_select, 0, sizeof(queue_select));
 737         queue_select.vsi_id = vf->vsi_res->vsi_id;
 738
 739         if (isrx)
 740                 queue_select.rx_queues |= 1 << qid;
 741         else
 742                 queue_select.tx_queues |= 1 << qid;
 743
 744         if (on)
 745                 args.ops = I40E_VIRTCHNL_OP_ENABLE_QUEUES;
 746         else
 747                 args.ops = I40E_VIRTCHNL_OP_DISABLE_QUEUES;
 748         args.in_args = (u8 *)&queue_select;
 749         args.in_args_size = sizeof(queue_select);
 750         args.out_buffer = cmd_result_buffer;
 751         args.out_size = I40E_AQ_BUF_SZ;
 752         err = i40evf_execute_vf_cmd(dev, &args);
 753         if (err)
 754                 PMD_DRV_LOG(ERR, "fail to switch %s %u %s",
 755                             isrx ? "RX" : "TX", qid, on ? "on" : "off");
 756
 757         return err;
 758 }
 759
 760 static int
 761 i40evf_start_queues(struct rte_eth_dev *dev)
 762 {
 763         struct rte_eth_dev_data *dev_data = dev->data;
 764         int i;
 765         struct i40e_rx_queue *rxq;
 766         struct i40e_tx_queue *txq;
 767
 768         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 769                 rxq = dev_data->rx_queues[i];
 770                 if (rxq->rx_deferred_start)
 771                         continue;
 772                 if (i40evf_dev_rx_queue_start(dev, i) != 0) {
 773                         PMD_DRV_LOG(ERR, "Fail to start queue %u", i);
 774                         return -1;
 775                 }
 776         }
 777
 778         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 779                 txq = dev_data->tx_queues[i];
 780                 if (txq->tx_deferred_start)
 781                         continue;
 782                 if (i40evf_dev_tx_queue_start(dev, i) != 0) {
 783                         PMD_DRV_LOG(ERR, "Fail to start queue %u", i);
 784                         return -1;
 785                 }
 786         }
 787
 788         return 0;
 789 }
 790
 791 static int
 792 i40evf_stop_queues(struct rte_eth_dev *dev)
 793 {
 794         int i;
 795
 796         /* Stop TX queues first */
 797         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 798                 if (i40evf_dev_tx_queue_stop(dev, i) != 0) {
 799                         PMD_DRV_LOG(ERR, "Fail to start queue %u", i);
 800                         return -1;
 801                 }
 802         }
 803
 804         /* Then stop RX queues */
 805         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 806                 if (i40evf_dev_rx_queue_stop(dev, i) != 0) {
 807                         PMD_DRV_LOG(ERR, "Fail to start queue %u", i);
 808                         return -1;
 809                 }
 810         }
 811
 812         return 0;
 813 }
 814
 815 static int
 816 i40evf_add_mac_addr(struct rte_eth_dev *dev, struct ether_addr *addr)
 817 {
 818         struct i40e_virtchnl_ether_addr_list *list;
 819         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 820         uint8_t cmd_buffer[sizeof(struct i40e_virtchnl_ether_addr_list) + \
 821                         sizeof(struct i40e_virtchnl_ether_addr)];
 822         int err;
 823         struct vf_cmd_info args;
 824
 825         if (i40e_validate_mac_addr(addr->addr_bytes) != I40E_SUCCESS) {
 826                 PMD_DRV_LOG(ERR, "Invalid mac:%x:%x:%x:%x:%x:%x",
 827                             addr->addr_bytes[0], addr->addr_bytes[1],
 828                             addr->addr_bytes[2], addr->addr_bytes[3],
 829                             addr->addr_bytes[4], addr->addr_bytes[5]);
 830                 return -1;
 831         }
 832
 833         list = (struct i40e_virtchnl_ether_addr_list *)cmd_buffer;
 834         list->vsi_id = vf->vsi_res->vsi_id;
 835         list->num_elements = 1;
 836         (void)rte_memcpy(list->list[0].addr, addr->addr_bytes,
 837                                         sizeof(addr->addr_bytes));
 838
 839         args.ops = I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS;
 840         args.in_args = cmd_buffer;
 841         args.in_args_size = sizeof(cmd_buffer);
 842         args.out_buffer = cmd_result_buffer;
 843         args.out_size = I40E_AQ_BUF_SZ;
 844         err = i40evf_execute_vf_cmd(dev, &args);
 845         if (err)
 846                 PMD_DRV_LOG(ERR, "fail to execute command "
 847                             "OP_ADD_ETHER_ADDRESS");
 848
 849         return err;
 850 }
 851
 852 static int
 853 i40evf_del_mac_addr(struct rte_eth_dev *dev, struct ether_addr *addr)
 854 {
 855         struct i40e_virtchnl_ether_addr_list *list;
 856         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 857         uint8_t cmd_buffer[sizeof(struct i40e_virtchnl_ether_addr_list) + \
 858                         sizeof(struct i40e_virtchnl_ether_addr)];
 859         int err;
 860         struct vf_cmd_info args;
 861
 862         if (i40e_validate_mac_addr(addr->addr_bytes) != I40E_SUCCESS) {
 863                 PMD_DRV_LOG(ERR, "Invalid mac:%x-%x-%x-%x-%x-%x",
 864                             addr->addr_bytes[0], addr->addr_bytes[1],
 865                             addr->addr_bytes[2], addr->addr_bytes[3],
 866                             addr->addr_bytes[4], addr->addr_bytes[5]);
 867                 return -1;
 868         }
 869
 870         list = (struct i40e_virtchnl_ether_addr_list *)cmd_buffer;
 871         list->vsi_id = vf->vsi_res->vsi_id;
 872         list->num_elements = 1;
 873         (void)rte_memcpy(list->list[0].addr, addr->addr_bytes,
 874                         sizeof(addr->addr_bytes));
 875
 876         args.ops = I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS;
 877         args.in_args = cmd_buffer;
 878         args.in_args_size = sizeof(cmd_buffer);
 879         args.out_buffer = cmd_result_buffer;
 880         args.out_size = I40E_AQ_BUF_SZ;
 881         err = i40evf_execute_vf_cmd(dev, &args);
 882         if (err)
 883                 PMD_DRV_LOG(ERR, "fail to execute command "
 884                             "OP_DEL_ETHER_ADDRESS");
 885
 886         return err;
 887 }
 888
 889 static int
 890 i40evf_get_statics(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 891 {
 892         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 893         struct i40e_virtchnl_queue_select q_stats;
 894         struct i40e_eth_stats *pstats;
 895         int err;
 896         struct vf_cmd_info args;
 897
 898         memset(&q_stats, 0, sizeof(q_stats));
 899         q_stats.vsi_id = vf->vsi_res->vsi_id;
 900         args.ops = I40E_VIRTCHNL_OP_GET_STATS;
 901         args.in_args = (u8 *)&q_stats;
 902         args.in_args_size = sizeof(q_stats);
 903         args.out_buffer = cmd_result_buffer;
 904         args.out_size = I40E_AQ_BUF_SZ;
 905
 906         err = i40evf_execute_vf_cmd(dev, &args);
 907         if (err) {
 908                 PMD_DRV_LOG(ERR, "fail to execute command OP_GET_STATS");
 909                 return err;
 910         }
 911         pstats = (struct i40e_eth_stats *)args.out_buffer;
 912         stats->ipackets = pstats->rx_unicast + pstats->rx_multicast +
 913                                                 pstats->rx_broadcast;
 914         stats->opackets = pstats->tx_broadcast + pstats->tx_multicast +
 915                                                 pstats->tx_unicast;
 916         stats->ierrors = pstats->rx_discards;
 917         stats->oerrors = pstats->tx_errors + pstats->tx_discards;
 918         stats->ibytes = pstats->rx_bytes;
 919         stats->obytes = pstats->tx_bytes;
 920
 921         return 0;
 922 }
 923
 924 static int
 925 i40evf_add_vlan(struct rte_eth_dev *dev, uint16_t vlanid)
 926 {
 927         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 928         struct i40e_virtchnl_vlan_filter_list *vlan_list;
 929         uint8_t cmd_buffer[sizeof(struct i40e_virtchnl_vlan_filter_list) +
 930                                                         sizeof(uint16_t)];
 931         int err;
 932         struct vf_cmd_info args;
 933
 934         vlan_list = (struct i40e_virtchnl_vlan_filter_list *)cmd_buffer;
 935         vlan_list->vsi_id = vf->vsi_res->vsi_id;
 936         vlan_list->num_elements = 1;
 937         vlan_list->vlan_id[0] = vlanid;
 938
 939         args.ops = I40E_VIRTCHNL_OP_ADD_VLAN;
 940         args.in_args = (u8 *)&cmd_buffer;
 941         args.in_args_size = sizeof(cmd_buffer);
 942         args.out_buffer = cmd_result_buffer;
 943         args.out_size = I40E_AQ_BUF_SZ;
 944         err = i40evf_execute_vf_cmd(dev, &args);
 945         if (err)
 946                 PMD_DRV_LOG(ERR, "fail to execute command OP_ADD_VLAN");
 947
 948         return err;
 949 }
 950
 951 static int
 952 i40evf_del_vlan(struct rte_eth_dev *dev, uint16_t vlanid)
 953 {
 954         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 955         struct i40e_virtchnl_vlan_filter_list *vlan_list;
 956         uint8_t cmd_buffer[sizeof(struct i40e_virtchnl_vlan_filter_list) +
 957                                                         sizeof(uint16_t)];
 958         int err;
 959         struct vf_cmd_info args;
 960
 961         vlan_list = (struct i40e_virtchnl_vlan_filter_list *)cmd_buffer;
 962         vlan_list->vsi_id = vf->vsi_res->vsi_id;
 963         vlan_list->num_elements = 1;
 964         vlan_list->vlan_id[0] = vlanid;
 965
 966         args.ops = I40E_VIRTCHNL_OP_DEL_VLAN;
 967         args.in_args = (u8 *)&cmd_buffer;
 968         args.in_args_size = sizeof(cmd_buffer);
 969         args.out_buffer = cmd_result_buffer;
 970         args.out_size = I40E_AQ_BUF_SZ;
 971         err = i40evf_execute_vf_cmd(dev, &args);
 972         if (err)
 973                 PMD_DRV_LOG(ERR, "fail to execute command OP_DEL_VLAN");
 974
 975         return err;
 976 }
 977
 978 static int
 979 i40evf_get_link_status(struct rte_eth_dev *dev, struct rte_eth_link *link)
 980 {
 981         int err;
 982         struct vf_cmd_info args;
 983         struct rte_eth_link *new_link;
 984
 985         args.ops = (enum i40e_virtchnl_ops)I40E_VIRTCHNL_OP_GET_LINK_STAT;
 986         args.in_args = NULL;
 987         args.in_args_size = 0;
 988         args.out_buffer = cmd_result_buffer;
 989         args.out_size = I40E_AQ_BUF_SZ;
 990         err = i40evf_execute_vf_cmd(dev, &args);
 991         if (err) {
 992                 PMD_DRV_LOG(ERR, "fail to execute command OP_GET_LINK_STAT");
 993                 return err;
 994         }
 995
 996         new_link = (struct rte_eth_link *)args.out_buffer;
 997         (void)rte_memcpy(link, new_link, sizeof(*link));
 998
 999         return 0;
1000 }
1001
1002 static struct rte_pci_id pci_id_i40evf_map[] = {
1003 #define RTE_PCI_DEV_ID_DECL_I40EVF(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
1004 #include "rte_pci_dev_ids.h"
1005 { .vendor_id = 0, /* sentinel */ },
1006 };
1007
1008 static inline int
1009 i40evf_dev_atomic_write_link_status(struct rte_eth_dev *dev,
1010                                     struct rte_eth_link *link)
1011 {
1012         struct rte_eth_link *dst = &(dev->data->dev_link);
1013         struct rte_eth_link *src = link;
1014
1015         if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
1016                                         *(uint64_t *)src) == 0)
1017                 return -1;
1018
1019         return 0;
1020 }
1021
1022 static int
1023 i40evf_reset_vf(struct i40e_hw *hw)
1024 {
1025         int i, reset;
1026
1027         if (i40e_vf_reset(hw) != I40E_SUCCESS) {
1028                 PMD_INIT_LOG(ERR, "Reset VF NIC failed");
1029                 return -1;
1030         }
1031         /**
1032           * After issuing vf reset command to pf, pf won't necessarily
1033           * reset vf, it depends on what state it exactly is. If it's not
1034           * initialized yet, it won't have vf reset since it's in a certain
1035           * state. If not, it will try to reset. Even vf is reset, pf will
1036           * set I40E_VFGEN_RSTAT to COMPLETE first, then wait 10ms and set
1037           * it to ACTIVE. In this duration, vf may not catch the moment that
1038           * COMPLETE is set. So, for vf, we'll try to wait a long time.
1039           */
1040         rte_delay_ms(200);
1041
1042         for (i = 0; i < MAX_RESET_WAIT_CNT; i++) {
1043                 reset = rd32(hw, I40E_VFGEN_RSTAT) &
1044                         I40E_VFGEN_RSTAT_VFR_STATE_MASK;
1045                 reset = reset >> I40E_VFGEN_RSTAT_VFR_STATE_SHIFT;
1046                 if (I40E_VFR_COMPLETED == reset || I40E_VFR_VFACTIVE == reset)
1047                         break;
1048                 else
1049                         rte_delay_ms(50);
1050         }
1051
1052         if (i >= MAX_RESET_WAIT_CNT) {
1053                 PMD_INIT_LOG(ERR, "Reset VF NIC failed");
1054                 return -1;
1055         }
1056
1057         return 0;
1058 }
1059
1060 static int
1061 i40evf_init_vf(struct rte_eth_dev *dev)
1062 {
1063         int i, err, bufsz;
1064         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1065         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1066
1067         vf->adapter = I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
1068         vf->dev_data = dev->data;
1069         err = i40evf_set_mac_type(hw);
1070         if (err) {
1071                 PMD_INIT_LOG(ERR, "set_mac_type failed: %d", err);
1072                 goto err;
1073         }
1074
1075         i40e_init_adminq_parameter(hw);
1076         err = i40e_init_adminq(hw);
1077         if (err) {
1078                 PMD_INIT_LOG(ERR, "init_adminq failed: %d", err);
1079                 goto err;
1080         }
1081
1082
1083         /* Reset VF and wait until it's complete */
1084         if (i40evf_reset_vf(hw)) {
1085                 PMD_INIT_LOG(ERR, "reset NIC failed");
1086                 goto err_aq;
1087         }
1088
1089         /* VF reset, shutdown admin queue and initialize again */
1090         if (i40e_shutdown_adminq(hw) != I40E_SUCCESS) {
1091                 PMD_INIT_LOG(ERR, "i40e_shutdown_adminq failed");
1092                 return -1;
1093         }
1094
1095         i40e_init_adminq_parameter(hw);
1096         if (i40e_init_adminq(hw) != I40E_SUCCESS) {
1097                 PMD_INIT_LOG(ERR, "init_adminq failed");
1098                 return -1;
1099         }
1100         if (i40evf_check_api_version(dev) != 0) {
1101                 PMD_INIT_LOG(ERR, "check_api version failed");
1102                 goto err_aq;
1103         }
1104         bufsz = sizeof(struct i40e_virtchnl_vf_resource) +
1105                 (I40E_MAX_VF_VSI * sizeof(struct i40e_virtchnl_vsi_resource));
1106         vf->vf_res = rte_zmalloc("vf_res", bufsz, 0);
1107         if (!vf->vf_res) {
1108                 PMD_INIT_LOG(ERR, "unable to allocate vf_res memory");
1109                         goto err_aq;
1110         }
1111
1112         if (i40evf_get_vf_resource(dev) != 0) {
1113                 PMD_INIT_LOG(ERR, "i40evf_get_vf_config failed");
1114                 goto err_alloc;
1115         }
1116
1117         /* got VF config message back from PF, now we can parse it */
1118         for (i = 0; i < vf->vf_res->num_vsis; i++) {
1119                 if (vf->vf_res->vsi_res[i].vsi_type == I40E_VSI_SRIOV)
1120                         vf->vsi_res = &vf->vf_res->vsi_res[i];
1121         }
1122
1123         if (!vf->vsi_res) {
1124                 PMD_INIT_LOG(ERR, "no LAN VSI found");
1125                 goto err_alloc;
1126         }
1127
1128         vf->vsi.vsi_id = vf->vsi_res->vsi_id;
1129         vf->vsi.type = vf->vsi_res->vsi_type;
1130         vf->vsi.nb_qps = vf->vsi_res->num_queue_pairs;
1131
1132         /* check mac addr, if it's not valid, genrate one */
1133         if (I40E_SUCCESS != i40e_validate_mac_addr(\
1134                         vf->vsi_res->default_mac_addr))
1135                 eth_random_addr(vf->vsi_res->default_mac_addr);
1136
1137         ether_addr_copy((struct ether_addr *)vf->vsi_res->default_mac_addr,
1138                                         (struct ether_addr *)hw->mac.addr);
1139
1140         return 0;
1141
1142 err_alloc:
1143         rte_free(vf->vf_res);
1144 err_aq:
1145         i40e_shutdown_adminq(hw); /* ignore error */
1146 err:
1147         return -1;
1148 }
1149
1150 static int
1151 i40evf_dev_init(struct rte_eth_dev *eth_dev)
1152 {
1153         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(\
1154                         eth_dev->data->dev_private);
1155
1156         PMD_INIT_FUNC_TRACE();
1157
1158         /* assign ops func pointer */
1159         eth_dev->dev_ops = &i40evf_eth_dev_ops;
1160         eth_dev->rx_pkt_burst = &i40e_recv_pkts;
1161         eth_dev->tx_pkt_burst = &i40e_xmit_pkts;
1162
1163         /*
1164          * For secondary processes, we don't initialise any further as primary
1165          * has already done this work.
1166          */
1167         if (rte_eal_process_type() != RTE_PROC_PRIMARY){
1168                 if (eth_dev->data->scattered_rx)
1169                         eth_dev->rx_pkt_burst = i40e_recv_scattered_pkts;
1170                 return 0;
1171         }
1172
1173         hw->vendor_id = eth_dev->pci_dev->id.vendor_id;
1174         hw->device_id = eth_dev->pci_dev->id.device_id;
1175         hw->subsystem_vendor_id = eth_dev->pci_dev->id.subsystem_vendor_id;
1176         hw->subsystem_device_id = eth_dev->pci_dev->id.subsystem_device_id;
1177         hw->bus.device = eth_dev->pci_dev->addr.devid;
1178         hw->bus.func = eth_dev->pci_dev->addr.function;
1179         hw->hw_addr = (void *)eth_dev->pci_dev->mem_resource[0].addr;
1180
1181         if(i40evf_init_vf(eth_dev) != 0) {
1182                 PMD_INIT_LOG(ERR, "Init vf failed");
1183                 return -1;
1184         }
1185
1186         /* copy mac addr */
1187         eth_dev->data->mac_addrs = rte_zmalloc("i40evf_mac",
1188                                         ETHER_ADDR_LEN, 0);
1189         if (eth_dev->data->mac_addrs == NULL) {
1190                 PMD_INIT_LOG(ERR, "Failed to allocate %d bytes needed to "
1191                                 "store MAC addresses", ETHER_ADDR_LEN);
1192                 return -ENOMEM;
1193         }
1194         ether_addr_copy((struct ether_addr *)hw->mac.addr,
1195                 (struct ether_addr *)eth_dev->data->mac_addrs);
1196
1197         return 0;
1198 }
1199
1200 /*
1201  * virtual function driver struct
1202  */
1203 static struct eth_driver rte_i40evf_pmd = {
1204         {
1205                 .name = "rte_i40evf_pmd",
1206                 .id_table = pci_id_i40evf_map,
1207                 .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
1208         },
1209         .eth_dev_init = i40evf_dev_init,
1210         .dev_private_size = sizeof(struct i40e_vf),
1211 };
1212
1213 /*
1214  * VF Driver initialization routine.
1215  * Invoked one at EAL init time.
1216  * Register itself as the [Virtual Poll Mode] Driver of PCI Fortville devices.
1217  */
1218 static int
1219 rte_i40evf_pmd_init(const char *name __rte_unused,
1220                     const char *params __rte_unused)
1221 {
1222         PMD_INIT_FUNC_TRACE();
1223
1224         rte_eth_driver_register(&rte_i40evf_pmd);
1225
1226         return 0;
1227 }
1228
1229 static struct rte_driver rte_i40evf_driver = {
1230         .type = PMD_PDEV,
1231         .init = rte_i40evf_pmd_init,
1232 };
1233
1234 PMD_REGISTER_DRIVER(rte_i40evf_driver);
1235
1236 static int
1237 i40evf_dev_configure(struct rte_eth_dev *dev)
1238 {
1239         return i40evf_init_vlan(dev);
1240 }
1241
1242 static int
1243 i40evf_init_vlan(struct rte_eth_dev *dev)
1244 {
1245         struct rte_eth_dev_data *data = dev->data;
1246         int ret;
1247
1248         /* Apply vlan offload setting */
1249         i40evf_vlan_offload_set(dev, ETH_VLAN_STRIP_MASK);
1250
1251         /* Apply pvid setting */
1252         ret = i40evf_vlan_pvid_set(dev, data->dev_conf.txmode.pvid,
1253                                 data->dev_conf.txmode.hw_vlan_insert_pvid);
1254         return ret;
1255 }
1256
1257 static void
1258 i40evf_vlan_offload_set(struct rte_eth_dev *dev, int mask)
1259 {
1260         bool enable_vlan_strip = 0;
1261         struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
1262         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1263
1264         /* Linux pf host doesn't support vlan offload yet */
1265         if (vf->version_major == I40E_DPDK_VERSION_MAJOR) {
1266                 /* Vlan stripping setting */
1267                 if (mask & ETH_VLAN_STRIP_MASK) {
1268                         /* Enable or disable VLAN stripping */
1269                         if (dev_conf->rxmode.hw_vlan_strip)
1270                                 enable_vlan_strip = 1;
1271                         else
1272                                 enable_vlan_strip = 0;
1273
1274                         i40evf_config_vlan_offload(dev, enable_vlan_strip);
1275                 }
1276         }
1277 }
1278
1279 static int
1280 i40evf_vlan_pvid_set(struct rte_eth_dev *dev, uint16_t pvid, int on)
1281 {
1282         struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
1283         struct i40e_vsi_vlan_pvid_info info;
1284         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1285
1286         memset(&info, 0, sizeof(info));
1287         info.on = on;
1288
1289         /* Linux pf host don't support vlan offload yet */
1290         if (vf->version_major == I40E_DPDK_VERSION_MAJOR) {
1291                 if (info.on)
1292                         info.config.pvid = pvid;
1293                 else {
1294                         info.config.reject.tagged =
1295                                 dev_conf->txmode.hw_vlan_reject_tagged;
1296                         info.config.reject.untagged =
1297                                 dev_conf->txmode.hw_vlan_reject_untagged;
1298                 }
1299                 return i40evf_config_vlan_pvid(dev, &info);
1300         }
1301
1302         return 0;
1303 }
1304
1305 static int
1306 i40evf_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1307 {
1308         struct i40e_rx_queue *rxq;
1309         int err = 0;
1310         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1311
1312         PMD_INIT_FUNC_TRACE();
1313
1314         if (rx_queue_id < dev->data->nb_rx_queues) {
1315                 rxq = dev->data->rx_queues[rx_queue_id];
1316
1317                 err = i40e_alloc_rx_queue_mbufs(rxq);
1318                 if (err) {
1319                         PMD_DRV_LOG(ERR, "Failed to allocate RX queue mbuf");
1320                         return err;
1321                 }
1322
1323                 rte_wmb();
1324
1325                 /* Init the RX tail register. */
1326                 I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
1327                 I40EVF_WRITE_FLUSH(hw);
1328
1329                 /* Ready to switch the queue on */
1330                 err = i40evf_switch_queue(dev, TRUE, rx_queue_id, TRUE);
1331
1332                 if (err)
1333                         PMD_DRV_LOG(ERR, "Failed to switch RX queue %u on",
1334                                     rx_queue_id);
1335         }
1336
1337         return err;
1338 }
1339
1340 static int
1341 i40evf_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1342 {
1343         struct i40e_rx_queue *rxq;
1344         int err;
1345
1346         if (rx_queue_id < dev->data->nb_rx_queues) {
1347                 rxq = dev->data->rx_queues[rx_queue_id];
1348
1349                 err = i40evf_switch_queue(dev, TRUE, rx_queue_id, FALSE);
1350
1351                 if (err) {
1352                         PMD_DRV_LOG(ERR, "Failed to switch RX queue %u off",
1353                                     rx_queue_id);
1354                         return err;
1355                 }
1356
1357                 i40e_rx_queue_release_mbufs(rxq);
1358                 i40e_reset_rx_queue(rxq);
1359         }
1360
1361         return 0;
1362 }
1363
1364 static int
1365 i40evf_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1366 {
1367         int err = 0;
1368
1369         PMD_INIT_FUNC_TRACE();
1370
1371         if (tx_queue_id < dev->data->nb_tx_queues) {
1372
1373                 /* Ready to switch the queue on */
1374                 err = i40evf_switch_queue(dev, FALSE, tx_queue_id, TRUE);
1375
1376                 if (err)
1377                         PMD_DRV_LOG(ERR, "Failed to switch TX queue %u on",
1378                                     tx_queue_id);
1379         }
1380
1381         return err;
1382 }
1383
1384 static int
1385 i40evf_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1386 {
1387         struct i40e_tx_queue *txq;
1388         int err;
1389
1390         if (tx_queue_id < dev->data->nb_tx_queues) {
1391                 txq = dev->data->tx_queues[tx_queue_id];
1392
1393                 err = i40evf_switch_queue(dev, FALSE, tx_queue_id, FALSE);
1394
1395                 if (err) {
1396                         PMD_DRV_LOG(ERR, "Failed to switch TX queue %u of",
1397                                     tx_queue_id);
1398                         return err;
1399                 }
1400
1401                 i40e_tx_queue_release_mbufs(txq);
1402                 i40e_reset_tx_queue(txq);
1403         }
1404
1405         return 0;
1406 }
1407
1408 static int
1409 i40evf_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
1410 {
1411         int ret;
1412
1413         if (on)
1414                 ret = i40evf_add_vlan(dev, vlan_id);
1415         else
1416                 ret = i40evf_del_vlan(dev,vlan_id);
1417
1418         return ret;
1419 }
1420
1421 static int
1422 i40evf_rx_init(struct rte_eth_dev *dev)
1423 {
1424         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1425         uint16_t i;
1426         struct i40e_rx_queue **rxq =
1427                 (struct i40e_rx_queue **)dev->data->rx_queues;
1428         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1429
1430         i40evf_config_rss(vf);
1431         for (i = 0; i < dev->data->nb_rx_queues; i++) {
1432                 rxq[i]->qrx_tail = hw->hw_addr + I40E_QRX_TAIL1(i);
1433                 I40E_PCI_REG_WRITE(rxq[i]->qrx_tail, rxq[i]->nb_rx_desc - 1);
1434         }
1435
1436         /* Flush the operation to write registers */
1437         I40EVF_WRITE_FLUSH(hw);
1438
1439         return 0;
1440 }
1441
1442 static void
1443 i40evf_tx_init(struct rte_eth_dev *dev)
1444 {
1445         uint16_t i;
1446         struct i40e_tx_queue **txq =
1447                 (struct i40e_tx_queue **)dev->data->tx_queues;
1448         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1449
1450         for (i = 0; i < dev->data->nb_tx_queues; i++)
1451                 txq[i]->qtx_tail = hw->hw_addr + I40E_QTX_TAIL1(i);
1452 }
1453
1454 static inline void
1455 i40evf_enable_queues_intr(struct i40e_hw *hw)
1456 {
1457         I40E_WRITE_REG(hw, I40E_VFINT_DYN_CTLN1(I40EVF_VSI_DEFAULT_MSIX_INTR - 1),
1458                         I40E_VFINT_DYN_CTLN1_INTENA_MASK |
1459                         I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
1460 }
1461
1462 static inline void
1463 i40evf_disable_queues_intr(struct i40e_hw *hw)
1464 {
1465         I40E_WRITE_REG(hw, I40E_VFINT_DYN_CTLN1(I40EVF_VSI_DEFAULT_MSIX_INTR - 1),
1466                         0);
1467 }
1468
1469 static int
1470 i40evf_dev_start(struct rte_eth_dev *dev)
1471 {
1472         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1473         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1474         struct ether_addr mac_addr;
1475
1476         PMD_INIT_FUNC_TRACE();
1477
1478         vf->max_pkt_len = dev->data->dev_conf.rxmode.max_rx_pkt_len;
1479         if (dev->data->dev_conf.rxmode.jumbo_frame == 1) {
1480                 if (vf->max_pkt_len <= ETHER_MAX_LEN ||
1481                         vf->max_pkt_len > I40E_FRAME_SIZE_MAX) {
1482                         PMD_DRV_LOG(ERR, "maximum packet length must "
1483                                     "be larger than %u and smaller than %u,"
1484                                     "as jumbo frame is enabled",
1485                                     (uint32_t)ETHER_MAX_LEN,
1486                                     (uint32_t)I40E_FRAME_SIZE_MAX);
1487                         return I40E_ERR_CONFIG;
1488                 }
1489         } else {
1490                 if (vf->max_pkt_len < ETHER_MIN_LEN ||
1491                         vf->max_pkt_len > ETHER_MAX_LEN) {
1492                         PMD_DRV_LOG(ERR, "maximum packet length must be "
1493                                     "larger than %u and smaller than %u, "
1494                                     "as jumbo frame is disabled",
1495                                     (uint32_t)ETHER_MIN_LEN,
1496                                     (uint32_t)ETHER_MAX_LEN);
1497                         return I40E_ERR_CONFIG;
1498                 }
1499         }
1500
1501         vf->num_queue_pairs = RTE_MAX(dev->data->nb_rx_queues,
1502                                         dev->data->nb_tx_queues);
1503
1504         if (i40evf_rx_init(dev) != 0){
1505                 PMD_DRV_LOG(ERR, "failed to do RX init");
1506                 return -1;
1507         }
1508
1509         i40evf_tx_init(dev);
1510
1511         if (i40evf_configure_queues(dev) != 0) {
1512                 PMD_DRV_LOG(ERR, "configure queues failed");
1513                 goto err_queue;
1514         }
1515         if (i40evf_config_irq_map(dev)) {
1516                 PMD_DRV_LOG(ERR, "config_irq_map failed");
1517                 goto err_queue;
1518         }
1519
1520         /* Set mac addr */
1521         (void)rte_memcpy(mac_addr.addr_bytes, hw->mac.addr,
1522                                 sizeof(mac_addr.addr_bytes));
1523         if (i40evf_add_mac_addr(dev, &mac_addr)) {
1524                 PMD_DRV_LOG(ERR, "Failed to add mac addr");
1525                 goto err_queue;
1526         }
1527
1528         if (i40evf_start_queues(dev) != 0) {
1529                 PMD_DRV_LOG(ERR, "enable queues failed");
1530                 goto err_mac;
1531         }
1532
1533         i40evf_enable_queues_intr(hw);
1534         return 0;
1535
1536 err_mac:
1537         i40evf_del_mac_addr(dev, &mac_addr);
1538 err_queue:
1539         return -1;
1540 }
1541
1542 static void
1543 i40evf_dev_stop(struct rte_eth_dev *dev)
1544 {
1545         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1546
1547         PMD_INIT_FUNC_TRACE();
1548
1549         i40evf_disable_queues_intr(hw);
1550         i40evf_stop_queues(dev);
1551 }
1552
1553 static int
1554 i40evf_dev_link_update(struct rte_eth_dev *dev,
1555                        __rte_unused int wait_to_complete)
1556 {
1557         struct rte_eth_link new_link;
1558         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1559         /*
1560          * DPDK pf host provide interfacet to acquire link status
1561          * while Linux driver does not
1562          */
1563         if (vf->version_major == I40E_DPDK_VERSION_MAJOR)
1564                 i40evf_get_link_status(dev, &new_link);
1565         else {
1566                 /* Always assume it's up, for Linux driver PF host */
1567                 new_link.link_duplex = ETH_LINK_AUTONEG_DUPLEX;
1568                 new_link.link_speed  = ETH_LINK_SPEED_10000;
1569                 new_link.link_status = 1;
1570         }
1571         i40evf_dev_atomic_write_link_status(dev, &new_link);
1572
1573         return 0;
1574 }
1575
1576 static void
1577 i40evf_dev_promiscuous_enable(struct rte_eth_dev *dev)
1578 {
1579         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1580         int ret;
1581
1582         /* If enabled, just return */
1583         if (vf->promisc_unicast_enabled)
1584                 return;
1585
1586         ret = i40evf_config_promisc(dev, 1, vf->promisc_multicast_enabled);
1587         if (ret == 0)
1588                 vf->promisc_unicast_enabled = TRUE;
1589 }
1590
1591 static void
1592 i40evf_dev_promiscuous_disable(struct rte_eth_dev *dev)
1593 {
1594         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1595         int ret;
1596
1597         /* If disabled, just return */
1598         if (!vf->promisc_unicast_enabled)
1599                 return;
1600
1601         ret = i40evf_config_promisc(dev, 0, vf->promisc_multicast_enabled);
1602         if (ret == 0)
1603                 vf->promisc_unicast_enabled = FALSE;
1604 }
1605
1606 static void
1607 i40evf_dev_allmulticast_enable(struct rte_eth_dev *dev)
1608 {
1609         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1610         int ret;
1611
1612         /* If enabled, just return */
1613         if (vf->promisc_multicast_enabled)
1614                 return;
1615
1616         ret = i40evf_config_promisc(dev, vf->promisc_unicast_enabled, 1);
1617         if (ret == 0)
1618                 vf->promisc_multicast_enabled = TRUE;
1619 }
1620
1621 static void
1622 i40evf_dev_allmulticast_disable(struct rte_eth_dev *dev)
1623 {
1624         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1625         int ret;
1626
1627         /* If enabled, just return */
1628         if (!vf->promisc_multicast_enabled)
1629                 return;
1630
1631         ret = i40evf_config_promisc(dev, vf->promisc_unicast_enabled, 0);
1632         if (ret == 0)
1633                 vf->promisc_multicast_enabled = FALSE;
1634 }
1635
1636 static void
1637 i40evf_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
1638 {
1639         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1640
1641         memset(dev_info, 0, sizeof(*dev_info));
1642         dev_info->max_rx_queues = vf->vsi_res->num_queue_pairs;
1643         dev_info->max_tx_queues = vf->vsi_res->num_queue_pairs;
1644         dev_info->min_rx_bufsize = I40E_BUF_SIZE_MIN;
1645         dev_info->max_rx_pktlen = I40E_FRAME_SIZE_MAX;
1646         dev_info->reta_size = ETH_RSS_RETA_SIZE_64;
1647         dev_info->flow_type_rss_offloads = I40E_RSS_OFFLOAD_ALL;
1648
1649         dev_info->default_rxconf = (struct rte_eth_rxconf) {
1650                 .rx_thresh = {
1651                         .pthresh = I40E_DEFAULT_RX_PTHRESH,
1652                         .hthresh = I40E_DEFAULT_RX_HTHRESH,
1653                         .wthresh = I40E_DEFAULT_RX_WTHRESH,
1654                 },
1655                 .rx_free_thresh = I40E_DEFAULT_RX_FREE_THRESH,
1656                 .rx_drop_en = 0,
1657         };
1658
1659         dev_info->default_txconf = (struct rte_eth_txconf) {
1660                 .tx_thresh = {
1661                         .pthresh = I40E_DEFAULT_TX_PTHRESH,
1662                         .hthresh = I40E_DEFAULT_TX_HTHRESH,
1663                         .wthresh = I40E_DEFAULT_TX_WTHRESH,
1664                 },
1665                 .tx_free_thresh = I40E_DEFAULT_TX_FREE_THRESH,
1666                 .tx_rs_thresh = I40E_DEFAULT_TX_RSBIT_THRESH,
1667                 .txq_flags = ETH_TXQ_FLAGS_NOMULTSEGS |
1668                                 ETH_TXQ_FLAGS_NOOFFLOADS,
1669         };
1670 }
1671
1672 static void
1673 i40evf_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
1674 {
1675         if (i40evf_get_statics(dev, stats))
1676                 PMD_DRV_LOG(ERR, "Get statics failed");
1677 }
1678
1679 static void
1680 i40evf_dev_close(struct rte_eth_dev *dev)
1681 {
1682         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1683
1684         i40evf_dev_stop(dev);
1685         i40evf_reset_vf(hw);
1686         i40e_shutdown_adminq(hw);
1687 }
1688
1689 static int
1690 i40evf_dev_rss_reta_update(struct rte_eth_dev *dev,
1691                            struct rte_eth_rss_reta_entry64 *reta_conf,
1692                            uint16_t reta_size)
1693 {
1694         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1695         uint32_t lut, l;
1696         uint16_t i, j;
1697         uint16_t idx, shift;
1698         uint8_t mask;
1699
1700         if (reta_size != ETH_RSS_RETA_SIZE_64) {
1701                 PMD_DRV_LOG(ERR, "The size of hash lookup table configured "
1702                         "(%d) doesn't match the number of hardware can "
1703                         "support (%d)\n", reta_size, ETH_RSS_RETA_SIZE_64);
1704                 return -EINVAL;
1705         }
1706
1707         for (i = 0; i < reta_size; i += I40E_4_BIT_WIDTH) {
1708                 idx = i / RTE_RETA_GROUP_SIZE;
1709                 shift = i % RTE_RETA_GROUP_SIZE;
1710                 mask = (uint8_t)((reta_conf[idx].mask >> shift) &
1711                                                 I40E_4_BIT_MASK);
1712                 if (!mask)
1713                         continue;
1714                 if (mask == I40E_4_BIT_MASK)
1715                         l = 0;
1716                 else
1717                         l = I40E_READ_REG(hw, I40E_VFQF_HLUT(i >> 2));
1718
1719                 for (j = 0, lut = 0; j < I40E_4_BIT_WIDTH; j++) {
1720                         if (mask & (0x1 << j))
1721                                 lut |= reta_conf[idx].reta[shift + j] <<
1722                                                         (CHAR_BIT * j);
1723                         else
1724                                 lut |= l & (I40E_8_BIT_MASK << (CHAR_BIT * j));
1725                 }
1726                 I40E_WRITE_REG(hw, I40E_VFQF_HLUT(i >> 2), lut);
1727         }
1728
1729         return 0;
1730 }
1731
1732 static int
1733 i40evf_dev_rss_reta_query(struct rte_eth_dev *dev,
1734                           struct rte_eth_rss_reta_entry64 *reta_conf,
1735                           uint16_t reta_size)
1736 {
1737         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1738         uint32_t lut;
1739         uint16_t i, j;
1740         uint16_t idx, shift;
1741         uint8_t mask;
1742
1743         if (reta_size != ETH_RSS_RETA_SIZE_64) {
1744                 PMD_DRV_LOG(ERR, "The size of hash lookup table configured "
1745                         "(%d) doesn't match the number of hardware can "
1746                         "support (%d)\n", reta_size, ETH_RSS_RETA_SIZE_64);
1747                 return -EINVAL;
1748         }
1749
1750         for (i = 0; i < reta_size; i += I40E_4_BIT_WIDTH) {
1751                 idx = i / RTE_RETA_GROUP_SIZE;
1752                 shift = i % RTE_RETA_GROUP_SIZE;
1753                 mask = (uint8_t)((reta_conf[idx].mask >> shift) &
1754                                                 I40E_4_BIT_MASK);
1755                 if (!mask)
1756                         continue;
1757
1758                 lut = I40E_READ_REG(hw, I40E_VFQF_HLUT(i >> 2));
1759                 for (j = 0; j < I40E_4_BIT_WIDTH; j++) {
1760                         if (mask & (0x1 << j))
1761                                 reta_conf[idx].reta[shift + j] =
1762                                         ((lut >> (CHAR_BIT * j)) &
1763                                                 I40E_8_BIT_MASK);
1764                 }
1765         }
1766
1767         return 0;
1768 }
1769
1770 static int
1771 i40evf_hw_rss_hash_set(struct i40e_hw *hw, struct rte_eth_rss_conf *rss_conf)
1772 {
1773         uint32_t *hash_key;
1774         uint8_t hash_key_len;
1775         uint64_t rss_hf, hena;
1776
1777         hash_key = (uint32_t *)(rss_conf->rss_key);
1778         hash_key_len = rss_conf->rss_key_len;
1779         if (hash_key != NULL && hash_key_len >=
1780                 (I40E_VFQF_HKEY_MAX_INDEX + 1) * sizeof(uint32_t)) {
1781                 uint16_t i;
1782
1783                 for (i = 0; i <= I40E_VFQF_HKEY_MAX_INDEX; i++)
1784                         I40E_WRITE_REG(hw, I40E_VFQF_HKEY(i), hash_key[i]);
1785         }
1786
1787         rss_hf = rss_conf->rss_hf;
1788         hena = (uint64_t)I40E_READ_REG(hw, I40E_VFQF_HENA(0));
1789         hena |= ((uint64_t)I40E_READ_REG(hw, I40E_VFQF_HENA(1))) << 32;
1790         hena &= ~I40E_RSS_HENA_ALL;
1791         hena |= i40e_config_hena(rss_hf);
1792         I40E_WRITE_REG(hw, I40E_VFQF_HENA(0), (uint32_t)hena);
1793         I40E_WRITE_REG(hw, I40E_VFQF_HENA(1), (uint32_t)(hena >> 32));
1794         I40EVF_WRITE_FLUSH(hw);
1795
1796         return 0;
1797 }
1798
1799 static void
1800 i40evf_disable_rss(struct i40e_vf *vf)
1801 {
1802         struct i40e_hw *hw = I40E_VF_TO_HW(vf);
1803         uint64_t hena;
1804
1805         hena = (uint64_t)I40E_READ_REG(hw, I40E_VFQF_HENA(0));
1806         hena |= ((uint64_t)I40E_READ_REG(hw, I40E_VFQF_HENA(1))) << 32;
1807         hena &= ~I40E_RSS_HENA_ALL;
1808         I40E_WRITE_REG(hw, I40E_VFQF_HENA(0), (uint32_t)hena);
1809         I40E_WRITE_REG(hw, I40E_VFQF_HENA(1), (uint32_t)(hena >> 32));
1810         I40EVF_WRITE_FLUSH(hw);
1811 }
1812
1813 static int
1814 i40evf_config_rss(struct i40e_vf *vf)
1815 {
1816         struct i40e_hw *hw = I40E_VF_TO_HW(vf);
1817         struct rte_eth_rss_conf rss_conf;
1818         uint32_t i, j, lut = 0, nb_q = (I40E_VFQF_HLUT_MAX_INDEX + 1) * 4;
1819
1820         if (vf->dev_data->dev_conf.rxmode.mq_mode != ETH_MQ_RX_RSS) {
1821                 i40evf_disable_rss(vf);
1822                 PMD_DRV_LOG(DEBUG, "RSS not configured\n");
1823                 return 0;
1824         }
1825
1826         /* Fill out the look up table */
1827         for (i = 0, j = 0; i < nb_q; i++, j++) {
1828                 if (j >= vf->num_queue_pairs)
1829                         j = 0;
1830                 lut = (lut << 8) | j;
1831                 if ((i & 3) == 3)
1832                         I40E_WRITE_REG(hw, I40E_VFQF_HLUT(i >> 2), lut);
1833         }
1834
1835         rss_conf = vf->dev_data->dev_conf.rx_adv_conf.rss_conf;
1836         if ((rss_conf.rss_hf & I40E_RSS_OFFLOAD_ALL) == 0) {
1837                 i40evf_disable_rss(vf);
1838                 PMD_DRV_LOG(DEBUG, "No hash flag is set\n");
1839                 return 0;
1840         }
1841
1842         if (rss_conf.rss_key == NULL || rss_conf.rss_key_len < nb_q) {
1843                 /* Calculate the default hash key */
1844                 for (i = 0; i <= I40E_VFQF_HKEY_MAX_INDEX; i++)
1845                         rss_key_default[i] = (uint32_t)rte_rand();
1846                 rss_conf.rss_key = (uint8_t *)rss_key_default;
1847                 rss_conf.rss_key_len = nb_q;
1848         }
1849
1850         return i40evf_hw_rss_hash_set(hw, &rss_conf);
1851 }
1852
1853 static int
1854 i40evf_dev_rss_hash_update(struct rte_eth_dev *dev,
1855                            struct rte_eth_rss_conf *rss_conf)
1856 {
1857         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1858         uint64_t rss_hf = rss_conf->rss_hf & I40E_RSS_OFFLOAD_ALL;
1859         uint64_t hena;
1860
1861         hena = (uint64_t)I40E_READ_REG(hw, I40E_VFQF_HENA(0));
1862         hena |= ((uint64_t)I40E_READ_REG(hw, I40E_VFQF_HENA(1))) << 32;
1863         if (!(hena & I40E_RSS_HENA_ALL)) { /* RSS disabled */
1864                 if (rss_hf != 0) /* Enable RSS */
1865                         return -EINVAL;
1866                 return 0;
1867         }
1868
1869         /* RSS enabled */
1870         if (rss_hf == 0) /* Disable RSS */
1871                 return -EINVAL;
1872
1873         return i40evf_hw_rss_hash_set(hw, rss_conf);
1874 }
1875
1876 static int
1877 i40evf_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1878                              struct rte_eth_rss_conf *rss_conf)
1879 {
1880         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1881         uint32_t *hash_key = (uint32_t *)(rss_conf->rss_key);
1882         uint64_t hena;
1883         uint16_t i;
1884
1885         if (hash_key) {
1886                 for (i = 0; i <= I40E_VFQF_HKEY_MAX_INDEX; i++)
1887                         hash_key[i] = I40E_READ_REG(hw, I40E_VFQF_HKEY(i));
1888                 rss_conf->rss_key_len = i * sizeof(uint32_t);
1889         }
1890         hena = (uint64_t)I40E_READ_REG(hw, I40E_VFQF_HENA(0));
1891         hena |= ((uint64_t)I40E_READ_REG(hw, I40E_VFQF_HENA(1))) << 32;
1892         rss_conf->rss_hf = i40e_parse_hena(hena);
1893
1894         return 0;
1895 }