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