drivers/net/igc/igc_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019-2020 Intel Corporation
   3  */
   4
   5 #include <stdint.h>
   6 #include <string.h>
   7
   8 #include <rte_string_fns.h>
   9 #include <rte_pci.h>
  10 #include <rte_bus_pci.h>
  11 #include <ethdev_driver.h>
  12 #include <ethdev_pci.h>
  13 #include <rte_malloc.h>
  14 #include <rte_alarm.h>
  15
  16 #include "igc_logs.h"
  17 #include "igc_txrx.h"
  18 #include "igc_filter.h"
  19 #include "igc_flow.h"
  20
  21 #define IGC_INTEL_VENDOR_ID             0x8086
  22
  23 #define IGC_FC_PAUSE_TIME               0x0680
  24 #define IGC_LINK_UPDATE_CHECK_TIMEOUT   90  /* 9s */
  25 #define IGC_LINK_UPDATE_CHECK_INTERVAL  100 /* ms */
  26
  27 #define IGC_MISC_VEC_ID                 RTE_INTR_VEC_ZERO_OFFSET
  28 #define IGC_RX_VEC_START                RTE_INTR_VEC_RXTX_OFFSET
  29 #define IGC_MSIX_OTHER_INTR_VEC         0   /* MSI-X other interrupt vector */
  30 #define IGC_FLAG_NEED_LINK_UPDATE       (1u << 0)       /* need update link */
  31
  32 #define IGC_DEFAULT_RX_FREE_THRESH      32
  33
  34 #define IGC_DEFAULT_RX_PTHRESH          8
  35 #define IGC_DEFAULT_RX_HTHRESH          8
  36 #define IGC_DEFAULT_RX_WTHRESH          4
  37
  38 #define IGC_DEFAULT_TX_PTHRESH          8
  39 #define IGC_DEFAULT_TX_HTHRESH          1
  40 #define IGC_DEFAULT_TX_WTHRESH          16
  41
  42 /* MSI-X other interrupt vector */
  43 #define IGC_MSIX_OTHER_INTR_VEC         0
  44
  45 /* External VLAN Enable bit mask */
  46 #define IGC_CTRL_EXT_EXT_VLAN           (1u << 26)
  47
  48 /* Speed select */
  49 #define IGC_CTRL_SPEED_MASK             (7u << 8)
  50 #define IGC_CTRL_SPEED_2500             (6u << 8)
  51
  52 /* External VLAN Ether Type bit mask and shift */
  53 #define IGC_VET_EXT                     0xFFFF0000
  54 #define IGC_VET_EXT_SHIFT               16
  55
  56 /* Force EEE Auto-negotiation */
  57 #define IGC_EEER_EEE_FRC_AN             (1u << 28)
  58
  59 /* Per Queue Good Packets Received Count */
  60 #define IGC_PQGPRC(idx)         (0x10010 + 0x100 * (idx))
  61 /* Per Queue Good Octets Received Count */
  62 #define IGC_PQGORC(idx)         (0x10018 + 0x100 * (idx))
  63 /* Per Queue Good Octets Transmitted Count */
  64 #define IGC_PQGOTC(idx)         (0x10034 + 0x100 * (idx))
  65 /* Per Queue Multicast Packets Received Count */
  66 #define IGC_PQMPRC(idx)         (0x10038 + 0x100 * (idx))
  67 /* Transmit Queue Drop Packet Count */
  68 #define IGC_TQDPC(idx)          (0xe030 + 0x40 * (idx))
  69
  70 #if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
  71 #define U32_0_IN_U64            0       /* lower bytes of u64 */
  72 #define U32_1_IN_U64            1       /* higher bytes of u64 */
  73 #else
  74 #define U32_0_IN_U64            1
  75 #define U32_1_IN_U64            0
  76 #endif
  77
  78 #define IGC_ALARM_INTERVAL      8000000u
  79 /* us, about 13.6s some per-queue registers will wrap around back to 0. */
  80
  81 static const struct rte_eth_desc_lim rx_desc_lim = {
  82         .nb_max = IGC_MAX_RXD,
  83         .nb_min = IGC_MIN_RXD,
  84         .nb_align = IGC_RXD_ALIGN,
  85 };
  86
  87 static const struct rte_eth_desc_lim tx_desc_lim = {
  88         .nb_max = IGC_MAX_TXD,
  89         .nb_min = IGC_MIN_TXD,
  90         .nb_align = IGC_TXD_ALIGN,
  91         .nb_seg_max = IGC_TX_MAX_SEG,
  92         .nb_mtu_seg_max = IGC_TX_MAX_MTU_SEG,
  93 };
  94
  95 static const struct rte_pci_id pci_id_igc_map[] = {
  96         { RTE_PCI_DEVICE(IGC_INTEL_VENDOR_ID, IGC_DEV_ID_I225_LM) },
  97         { RTE_PCI_DEVICE(IGC_INTEL_VENDOR_ID, IGC_DEV_ID_I225_V)  },
  98         { RTE_PCI_DEVICE(IGC_INTEL_VENDOR_ID, IGC_DEV_ID_I225_I)  },
  99         { RTE_PCI_DEVICE(IGC_INTEL_VENDOR_ID, IGC_DEV_ID_I225_K)  },
 100         { .vendor_id = 0, /* sentinel */ },
 101 };
 102
 103 /* store statistics names and its offset in stats structure */
 104 struct rte_igc_xstats_name_off {
 105         char name[RTE_ETH_XSTATS_NAME_SIZE];
 106         unsigned int offset;
 107 };
 108
 109 static const struct rte_igc_xstats_name_off rte_igc_stats_strings[] = {
 110         {"rx_crc_errors", offsetof(struct igc_hw_stats, crcerrs)},
 111         {"rx_align_errors", offsetof(struct igc_hw_stats, algnerrc)},
 112         {"rx_errors", offsetof(struct igc_hw_stats, rxerrc)},
 113         {"rx_missed_packets", offsetof(struct igc_hw_stats, mpc)},
 114         {"tx_single_collision_packets", offsetof(struct igc_hw_stats, scc)},
 115         {"tx_multiple_collision_packets", offsetof(struct igc_hw_stats, mcc)},
 116         {"tx_excessive_collision_packets", offsetof(struct igc_hw_stats,
 117                 ecol)},
 118         {"tx_late_collisions", offsetof(struct igc_hw_stats, latecol)},
 119         {"tx_total_collisions", offsetof(struct igc_hw_stats, colc)},
 120         {"tx_deferred_packets", offsetof(struct igc_hw_stats, dc)},
 121         {"tx_no_carrier_sense_packets", offsetof(struct igc_hw_stats, tncrs)},
 122         {"tx_discarded_packets", offsetof(struct igc_hw_stats, htdpmc)},
 123         {"rx_length_errors", offsetof(struct igc_hw_stats, rlec)},
 124         {"rx_xon_packets", offsetof(struct igc_hw_stats, xonrxc)},
 125         {"tx_xon_packets", offsetof(struct igc_hw_stats, xontxc)},
 126         {"rx_xoff_packets", offsetof(struct igc_hw_stats, xoffrxc)},
 127         {"tx_xoff_packets", offsetof(struct igc_hw_stats, xofftxc)},
 128         {"rx_flow_control_unsupported_packets", offsetof(struct igc_hw_stats,
 129                 fcruc)},
 130         {"rx_size_64_packets", offsetof(struct igc_hw_stats, prc64)},
 131         {"rx_size_65_to_127_packets", offsetof(struct igc_hw_stats, prc127)},
 132         {"rx_size_128_to_255_packets", offsetof(struct igc_hw_stats, prc255)},
 133         {"rx_size_256_to_511_packets", offsetof(struct igc_hw_stats, prc511)},
 134         {"rx_size_512_to_1023_packets", offsetof(struct igc_hw_stats,
 135                 prc1023)},
 136         {"rx_size_1024_to_max_packets", offsetof(struct igc_hw_stats,
 137                 prc1522)},
 138         {"rx_broadcast_packets", offsetof(struct igc_hw_stats, bprc)},
 139         {"rx_multicast_packets", offsetof(struct igc_hw_stats, mprc)},
 140         {"rx_undersize_errors", offsetof(struct igc_hw_stats, ruc)},
 141         {"rx_fragment_errors", offsetof(struct igc_hw_stats, rfc)},
 142         {"rx_oversize_errors", offsetof(struct igc_hw_stats, roc)},
 143         {"rx_jabber_errors", offsetof(struct igc_hw_stats, rjc)},
 144         {"rx_no_buffers", offsetof(struct igc_hw_stats, rnbc)},
 145         {"rx_management_packets", offsetof(struct igc_hw_stats, mgprc)},
 146         {"rx_management_dropped", offsetof(struct igc_hw_stats, mgpdc)},
 147         {"tx_management_packets", offsetof(struct igc_hw_stats, mgptc)},
 148         {"rx_total_packets", offsetof(struct igc_hw_stats, tpr)},
 149         {"tx_total_packets", offsetof(struct igc_hw_stats, tpt)},
 150         {"rx_total_bytes", offsetof(struct igc_hw_stats, tor)},
 151         {"tx_total_bytes", offsetof(struct igc_hw_stats, tot)},
 152         {"tx_size_64_packets", offsetof(struct igc_hw_stats, ptc64)},
 153         {"tx_size_65_to_127_packets", offsetof(struct igc_hw_stats, ptc127)},
 154         {"tx_size_128_to_255_packets", offsetof(struct igc_hw_stats, ptc255)},
 155         {"tx_size_256_to_511_packets", offsetof(struct igc_hw_stats, ptc511)},
 156         {"tx_size_512_to_1023_packets", offsetof(struct igc_hw_stats,
 157                 ptc1023)},
 158         {"tx_size_1023_to_max_packets", offsetof(struct igc_hw_stats,
 159                 ptc1522)},
 160         {"tx_multicast_packets", offsetof(struct igc_hw_stats, mptc)},
 161         {"tx_broadcast_packets", offsetof(struct igc_hw_stats, bptc)},
 162         {"tx_tso_packets", offsetof(struct igc_hw_stats, tsctc)},
 163         {"rx_sent_to_host_packets", offsetof(struct igc_hw_stats, rpthc)},
 164         {"tx_sent_by_host_packets", offsetof(struct igc_hw_stats, hgptc)},
 165         {"interrupt_assert_count", offsetof(struct igc_hw_stats, iac)},
 166         {"rx_descriptor_lower_threshold",
 167                 offsetof(struct igc_hw_stats, icrxdmtc)},
 168 };
 169
 170 #define IGC_NB_XSTATS (sizeof(rte_igc_stats_strings) / \
 171                 sizeof(rte_igc_stats_strings[0]))
 172
 173 static int eth_igc_configure(struct rte_eth_dev *dev);
 174 static int eth_igc_link_update(struct rte_eth_dev *dev, int wait_to_complete);
 175 static int eth_igc_stop(struct rte_eth_dev *dev);
 176 static int eth_igc_start(struct rte_eth_dev *dev);
 177 static int eth_igc_set_link_up(struct rte_eth_dev *dev);
 178 static int eth_igc_set_link_down(struct rte_eth_dev *dev);
 179 static int eth_igc_close(struct rte_eth_dev *dev);
 180 static int eth_igc_reset(struct rte_eth_dev *dev);
 181 static int eth_igc_promiscuous_enable(struct rte_eth_dev *dev);
 182 static int eth_igc_promiscuous_disable(struct rte_eth_dev *dev);
 183 static int eth_igc_fw_version_get(struct rte_eth_dev *dev,
 184                                 char *fw_version, size_t fw_size);
 185 static int eth_igc_infos_get(struct rte_eth_dev *dev,
 186                         struct rte_eth_dev_info *dev_info);
 187 static int eth_igc_led_on(struct rte_eth_dev *dev);
 188 static int eth_igc_led_off(struct rte_eth_dev *dev);
 189 static const uint32_t *eth_igc_supported_ptypes_get(struct rte_eth_dev *dev);
 190 static int eth_igc_rar_set(struct rte_eth_dev *dev,
 191                 struct rte_ether_addr *mac_addr, uint32_t index, uint32_t pool);
 192 static void eth_igc_rar_clear(struct rte_eth_dev *dev, uint32_t index);
 193 static int eth_igc_default_mac_addr_set(struct rte_eth_dev *dev,
 194                         struct rte_ether_addr *addr);
 195 static int eth_igc_set_mc_addr_list(struct rte_eth_dev *dev,
 196                          struct rte_ether_addr *mc_addr_set,
 197                          uint32_t nb_mc_addr);
 198 static int eth_igc_allmulticast_enable(struct rte_eth_dev *dev);
 199 static int eth_igc_allmulticast_disable(struct rte_eth_dev *dev);
 200 static int eth_igc_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
 201 static int eth_igc_stats_get(struct rte_eth_dev *dev,
 202                         struct rte_eth_stats *rte_stats);
 203 static int eth_igc_xstats_get(struct rte_eth_dev *dev,
 204                         struct rte_eth_xstat *xstats, unsigned int n);
 205 static int eth_igc_xstats_get_by_id(struct rte_eth_dev *dev,
 206                                 const uint64_t *ids,
 207                                 uint64_t *values, unsigned int n);
 208 static int eth_igc_xstats_get_names(struct rte_eth_dev *dev,
 209                                 struct rte_eth_xstat_name *xstats_names,
 210                                 unsigned int size);
 211 static int eth_igc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 212                 const uint64_t *ids, struct rte_eth_xstat_name *xstats_names,
 213                 unsigned int limit);
 214 static int eth_igc_xstats_reset(struct rte_eth_dev *dev);
 215 static int
 216 eth_igc_queue_stats_mapping_set(struct rte_eth_dev *dev,
 217         uint16_t queue_id, uint8_t stat_idx, uint8_t is_rx);
 218 static int
 219 eth_igc_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id);
 220 static int
 221 eth_igc_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id);
 222 static int
 223 eth_igc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf);
 224 static int
 225 eth_igc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf);
 226 static int eth_igc_rss_reta_update(struct rte_eth_dev *dev,
 227                         struct rte_eth_rss_reta_entry64 *reta_conf,
 228                         uint16_t reta_size);
 229 static int eth_igc_rss_reta_query(struct rte_eth_dev *dev,
 230                        struct rte_eth_rss_reta_entry64 *reta_conf,
 231                        uint16_t reta_size);
 232 static int eth_igc_rss_hash_update(struct rte_eth_dev *dev,
 233                         struct rte_eth_rss_conf *rss_conf);
 234 static int eth_igc_rss_hash_conf_get(struct rte_eth_dev *dev,
 235                         struct rte_eth_rss_conf *rss_conf);
 236 static int
 237 eth_igc_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on);
 238 static int eth_igc_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 239 static int eth_igc_vlan_tpid_set(struct rte_eth_dev *dev,
 240                       enum rte_vlan_type vlan_type, uint16_t tpid);
 241
 242 static const struct eth_dev_ops eth_igc_ops = {
 243         .dev_configure          = eth_igc_configure,
 244         .link_update            = eth_igc_link_update,
 245         .dev_stop               = eth_igc_stop,
 246         .dev_start              = eth_igc_start,
 247         .dev_close              = eth_igc_close,
 248         .dev_reset              = eth_igc_reset,
 249         .dev_set_link_up        = eth_igc_set_link_up,
 250         .dev_set_link_down      = eth_igc_set_link_down,
 251         .promiscuous_enable     = eth_igc_promiscuous_enable,
 252         .promiscuous_disable    = eth_igc_promiscuous_disable,
 253         .allmulticast_enable    = eth_igc_allmulticast_enable,
 254         .allmulticast_disable   = eth_igc_allmulticast_disable,
 255         .fw_version_get         = eth_igc_fw_version_get,
 256         .dev_infos_get          = eth_igc_infos_get,
 257         .dev_led_on             = eth_igc_led_on,
 258         .dev_led_off            = eth_igc_led_off,
 259         .dev_supported_ptypes_get = eth_igc_supported_ptypes_get,
 260         .mtu_set                = eth_igc_mtu_set,
 261         .mac_addr_add           = eth_igc_rar_set,
 262         .mac_addr_remove        = eth_igc_rar_clear,
 263         .mac_addr_set           = eth_igc_default_mac_addr_set,
 264         .set_mc_addr_list       = eth_igc_set_mc_addr_list,
 265
 266         .rx_queue_setup         = eth_igc_rx_queue_setup,
 267         .rx_queue_release       = eth_igc_rx_queue_release,
 268         .tx_queue_setup         = eth_igc_tx_queue_setup,
 269         .tx_queue_release       = eth_igc_tx_queue_release,
 270         .tx_done_cleanup        = eth_igc_tx_done_cleanup,
 271         .rxq_info_get           = eth_igc_rxq_info_get,
 272         .txq_info_get           = eth_igc_txq_info_get,
 273         .stats_get              = eth_igc_stats_get,
 274         .xstats_get             = eth_igc_xstats_get,
 275         .xstats_get_by_id       = eth_igc_xstats_get_by_id,
 276         .xstats_get_names_by_id = eth_igc_xstats_get_names_by_id,
 277         .xstats_get_names       = eth_igc_xstats_get_names,
 278         .stats_reset            = eth_igc_xstats_reset,
 279         .xstats_reset           = eth_igc_xstats_reset,
 280         .queue_stats_mapping_set = eth_igc_queue_stats_mapping_set,
 281         .rx_queue_intr_enable   = eth_igc_rx_queue_intr_enable,
 282         .rx_queue_intr_disable  = eth_igc_rx_queue_intr_disable,
 283         .flow_ctrl_get          = eth_igc_flow_ctrl_get,
 284         .flow_ctrl_set          = eth_igc_flow_ctrl_set,
 285         .reta_update            = eth_igc_rss_reta_update,
 286         .reta_query             = eth_igc_rss_reta_query,
 287         .rss_hash_update        = eth_igc_rss_hash_update,
 288         .rss_hash_conf_get      = eth_igc_rss_hash_conf_get,
 289         .vlan_filter_set        = eth_igc_vlan_filter_set,
 290         .vlan_offload_set       = eth_igc_vlan_offload_set,
 291         .vlan_tpid_set          = eth_igc_vlan_tpid_set,
 292         .vlan_strip_queue_set   = eth_igc_vlan_strip_queue_set,
 293         .flow_ops_get           = eth_igc_flow_ops_get,
 294 };
 295
 296 /*
 297  * multiple queue mode checking
 298  */
 299 static int
 300 igc_check_mq_mode(struct rte_eth_dev *dev)
 301 {
 302         enum rte_eth_rx_mq_mode rx_mq_mode = dev->data->dev_conf.rxmode.mq_mode;
 303         enum rte_eth_tx_mq_mode tx_mq_mode = dev->data->dev_conf.txmode.mq_mode;
 304
 305         if (RTE_ETH_DEV_SRIOV(dev).active != 0) {
 306                 PMD_INIT_LOG(ERR, "SRIOV is not supported.");
 307                 return -EINVAL;
 308         }
 309
 310         if (rx_mq_mode != RTE_ETH_MQ_RX_NONE &&
 311                 rx_mq_mode != RTE_ETH_MQ_RX_RSS) {
 312                 /* RSS together with VMDq not supported*/
 313                 PMD_INIT_LOG(ERR, "RX mode %d is not supported.",
 314                                 rx_mq_mode);
 315                 return -EINVAL;
 316         }
 317
 318         /* To no break software that set invalid mode, only display
 319          * warning if invalid mode is used.
 320          */
 321         if (tx_mq_mode != RTE_ETH_MQ_TX_NONE)
 322                 PMD_INIT_LOG(WARNING,
 323                         "TX mode %d is not supported. Due to meaningless in this driver, just ignore",
 324                         tx_mq_mode);
 325
 326         return 0;
 327 }
 328
 329 static int
 330 eth_igc_configure(struct rte_eth_dev *dev)
 331 {
 332         struct igc_interrupt *intr = IGC_DEV_PRIVATE_INTR(dev);
 333         int ret;
 334
 335         PMD_INIT_FUNC_TRACE();
 336
 337         if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG)
 338                 dev->data->dev_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH;
 339
 340         ret  = igc_check_mq_mode(dev);
 341         if (ret != 0)
 342                 return ret;
 343
 344         intr->flags |= IGC_FLAG_NEED_LINK_UPDATE;
 345         return 0;
 346 }
 347
 348 static int
 349 eth_igc_set_link_up(struct rte_eth_dev *dev)
 350 {
 351         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
 352
 353         if (hw->phy.media_type == igc_media_type_copper)
 354                 igc_power_up_phy(hw);
 355         else
 356                 igc_power_up_fiber_serdes_link(hw);
 357         return 0;
 358 }
 359
 360 static int
 361 eth_igc_set_link_down(struct rte_eth_dev *dev)
 362 {
 363         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
 364
 365         if (hw->phy.media_type == igc_media_type_copper)
 366                 igc_power_down_phy(hw);
 367         else
 368                 igc_shutdown_fiber_serdes_link(hw);
 369         return 0;
 370 }
 371
 372 /*
 373  * disable other interrupt
 374  */
 375 static void
 376 igc_intr_other_disable(struct rte_eth_dev *dev)
 377 {
 378         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
 379         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 380         struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 381
 382         if (rte_intr_allow_others(intr_handle) &&
 383                 dev->data->dev_conf.intr_conf.lsc) {
 384                 IGC_WRITE_REG(hw, IGC_EIMC, 1u << IGC_MSIX_OTHER_INTR_VEC);
 385         }
 386
 387         IGC_WRITE_REG(hw, IGC_IMC, ~0);
 388         IGC_WRITE_FLUSH(hw);
 389 }
 390
 391 /*
 392  * enable other interrupt
 393  */
 394 static inline void
 395 igc_intr_other_enable(struct rte_eth_dev *dev)
 396 {
 397         struct igc_interrupt *intr = IGC_DEV_PRIVATE_INTR(dev);
 398         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
 399         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 400         struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 401
 402         if (rte_intr_allow_others(intr_handle) &&
 403                 dev->data->dev_conf.intr_conf.lsc) {
 404                 IGC_WRITE_REG(hw, IGC_EIMS, 1u << IGC_MSIX_OTHER_INTR_VEC);
 405         }
 406
 407         IGC_WRITE_REG(hw, IGC_IMS, intr->mask);
 408         IGC_WRITE_FLUSH(hw);
 409 }
 410
 411 /*
 412  * It reads ICR and gets interrupt causes, check it and set a bit flag
 413  * to update link status.
 414  */
 415 static void
 416 eth_igc_interrupt_get_status(struct rte_eth_dev *dev)
 417 {
 418         uint32_t icr;
 419         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
 420         struct igc_interrupt *intr = IGC_DEV_PRIVATE_INTR(dev);
 421
 422         /* read-on-clear nic registers here */
 423         icr = IGC_READ_REG(hw, IGC_ICR);
 424
 425         intr->flags = 0;
 426         if (icr & IGC_ICR_LSC)
 427                 intr->flags |= IGC_FLAG_NEED_LINK_UPDATE;
 428 }
 429
 430 /* return 0 means link status changed, -1 means not changed */
 431 static int
 432 eth_igc_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 433 {
 434         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
 435         struct rte_eth_link link;
 436         int link_check, count;
 437
 438         link_check = 0;
 439         hw->mac.get_link_status = 1;
 440
 441         /* possible wait-to-complete in up to 9 seconds */
 442         for (count = 0; count < IGC_LINK_UPDATE_CHECK_TIMEOUT; count++) {
 443                 /* Read the real link status */
 444                 switch (hw->phy.media_type) {
 445                 case igc_media_type_copper:
 446                         /* Do the work to read phy */
 447                         igc_check_for_link(hw);
 448                         link_check = !hw->mac.get_link_status;
 449                         break;
 450
 451                 case igc_media_type_fiber:
 452                         igc_check_for_link(hw);
 453                         link_check = (IGC_READ_REG(hw, IGC_STATUS) &
 454                                       IGC_STATUS_LU);
 455                         break;
 456
 457                 case igc_media_type_internal_serdes:
 458                         igc_check_for_link(hw);
 459                         link_check = hw->mac.serdes_has_link;
 460                         break;
 461
 462                 default:
 463                         break;
 464                 }
 465                 if (link_check || wait_to_complete == 0)
 466                         break;
 467                 rte_delay_ms(IGC_LINK_UPDATE_CHECK_INTERVAL);
 468         }
 469         memset(&link, 0, sizeof(link));
 470
 471         /* Now we check if a transition has happened */
 472         if (link_check) {
 473                 uint16_t duplex, speed;
 474                 hw->mac.ops.get_link_up_info(hw, &speed, &duplex);
 475                 link.link_duplex = (duplex == FULL_DUPLEX) ?
 476                                 RTE_ETH_LINK_FULL_DUPLEX :
 477                                 RTE_ETH_LINK_HALF_DUPLEX;
 478                 link.link_speed = speed;
 479                 link.link_status = RTE_ETH_LINK_UP;
 480                 link.link_autoneg = !(dev->data->dev_conf.link_speeds &
 481                                 RTE_ETH_LINK_SPEED_FIXED);
 482
 483                 if (speed == SPEED_2500) {
 484                         uint32_t tipg = IGC_READ_REG(hw, IGC_TIPG);
 485                         if ((tipg & IGC_TIPG_IPGT_MASK) != 0x0b) {
 486                                 tipg &= ~IGC_TIPG_IPGT_MASK;
 487                                 tipg |= 0x0b;
 488                                 IGC_WRITE_REG(hw, IGC_TIPG, tipg);
 489                         }
 490                 }
 491         } else {
 492                 link.link_speed = 0;
 493                 link.link_duplex = RTE_ETH_LINK_HALF_DUPLEX;
 494                 link.link_status = RTE_ETH_LINK_DOWN;
 495                 link.link_autoneg = RTE_ETH_LINK_FIXED;
 496         }
 497
 498         return rte_eth_linkstatus_set(dev, &link);
 499 }
 500
 501 /*
 502  * It executes link_update after knowing an interrupt is present.
 503  */
 504 static void
 505 eth_igc_interrupt_action(struct rte_eth_dev *dev)
 506 {
 507         struct igc_interrupt *intr = IGC_DEV_PRIVATE_INTR(dev);
 508         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 509         struct rte_eth_link link;
 510         int ret;
 511
 512         if (intr->flags & IGC_FLAG_NEED_LINK_UPDATE) {
 513                 intr->flags &= ~IGC_FLAG_NEED_LINK_UPDATE;
 514
 515                 /* set get_link_status to check register later */
 516                 ret = eth_igc_link_update(dev, 0);
 517
 518                 /* check if link has changed */
 519                 if (ret < 0)
 520                         return;
 521
 522                 rte_eth_linkstatus_get(dev, &link);
 523                 if (link.link_status)
 524                         PMD_DRV_LOG(INFO,
 525                                 " Port %d: Link Up - speed %u Mbps - %s",
 526                                 dev->data->port_id,
 527                                 (unsigned int)link.link_speed,
 528                                 link.link_duplex == RTE_ETH_LINK_FULL_DUPLEX ?
 529                                 "full-duplex" : "half-duplex");
 530                 else
 531                         PMD_DRV_LOG(INFO, " Port %d: Link Down",
 532                                 dev->data->port_id);
 533
 534                 PMD_DRV_LOG(DEBUG, "PCI Address: " PCI_PRI_FMT,
 535                                 pci_dev->addr.domain,
 536                                 pci_dev->addr.bus,
 537                                 pci_dev->addr.devid,
 538                                 pci_dev->addr.function);
 539                 rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL);
 540         }
 541 }
 542
 543 /*
 544  * Interrupt handler which shall be registered at first.
 545  *
 546  * @handle
 547  *  Pointer to interrupt handle.
 548  * @param
 549  *  The address of parameter (struct rte_eth_dev *) registered before.
 550  */
 551 static void
 552 eth_igc_interrupt_handler(void *param)
 553 {
 554         struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 555
 556         eth_igc_interrupt_get_status(dev);
 557         eth_igc_interrupt_action(dev);
 558 }
 559
 560 static void igc_read_queue_stats_register(struct rte_eth_dev *dev);
 561
 562 /*
 563  * Update the queue status every IGC_ALARM_INTERVAL time.
 564  * @param
 565  *  The address of parameter (struct rte_eth_dev *) registered before.
 566  */
 567 static void
 568 igc_update_queue_stats_handler(void *param)
 569 {
 570         struct rte_eth_dev *dev = param;
 571         igc_read_queue_stats_register(dev);
 572         rte_eal_alarm_set(IGC_ALARM_INTERVAL,
 573                         igc_update_queue_stats_handler, dev);
 574 }
 575
 576 /*
 577  * rx,tx enable/disable
 578  */
 579 static void
 580 eth_igc_rxtx_control(struct rte_eth_dev *dev, bool enable)
 581 {
 582         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
 583         uint32_t tctl, rctl;
 584
 585         tctl = IGC_READ_REG(hw, IGC_TCTL);
 586         rctl = IGC_READ_REG(hw, IGC_RCTL);
 587
 588         if (enable) {
 589                 /* enable Tx/Rx */
 590                 tctl |= IGC_TCTL_EN;
 591                 rctl |= IGC_RCTL_EN;
 592         } else {
 593                 /* disable Tx/Rx */
 594                 tctl &= ~IGC_TCTL_EN;
 595                 rctl &= ~IGC_RCTL_EN;
 596         }
 597         IGC_WRITE_REG(hw, IGC_TCTL, tctl);
 598         IGC_WRITE_REG(hw, IGC_RCTL, rctl);
 599         IGC_WRITE_FLUSH(hw);
 600 }
 601
 602 /*
 603  *  This routine disables all traffic on the adapter by issuing a
 604  *  global reset on the MAC.
 605  */
 606 static int
 607 eth_igc_stop(struct rte_eth_dev *dev)
 608 {
 609         struct igc_adapter *adapter = IGC_DEV_PRIVATE(dev);
 610         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
 611         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 612         struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 613         struct rte_eth_link link;
 614
 615         dev->data->dev_started = 0;
 616         adapter->stopped = 1;
 617
 618         /* disable receive and transmit */
 619         eth_igc_rxtx_control(dev, false);
 620
 621         /* disable all MSI-X interrupts */
 622         IGC_WRITE_REG(hw, IGC_EIMC, 0x1f);
 623         IGC_WRITE_FLUSH(hw);
 624
 625         /* clear all MSI-X interrupts */
 626         IGC_WRITE_REG(hw, IGC_EICR, 0x1f);
 627
 628         igc_intr_other_disable(dev);
 629
 630         rte_eal_alarm_cancel(igc_update_queue_stats_handler, dev);
 631
 632         /* disable intr eventfd mapping */
 633         rte_intr_disable(intr_handle);
 634
 635         igc_reset_hw(hw);
 636
 637         /* disable all wake up */
 638         IGC_WRITE_REG(hw, IGC_WUC, 0);
 639
 640         /* disable checking EEE operation in MAC loopback mode */
 641         igc_read_reg_check_clear_bits(hw, IGC_EEER, IGC_EEER_EEE_FRC_AN);
 642
 643         /* Set bit for Go Link disconnect */
 644         igc_read_reg_check_set_bits(hw, IGC_82580_PHY_POWER_MGMT,
 645                         IGC_82580_PM_GO_LINKD);
 646
 647         /* Power down the phy. Needed to make the link go Down */
 648         eth_igc_set_link_down(dev);
 649
 650         igc_dev_clear_queues(dev);
 651
 652         /* clear the recorded link status */
 653         memset(&link, 0, sizeof(link));
 654         rte_eth_linkstatus_set(dev, &link);
 655
 656         if (!rte_intr_allow_others(intr_handle))
 657                 /* resume to the default handler */
 658                 rte_intr_callback_register(intr_handle,
 659                                            eth_igc_interrupt_handler,
 660                                            (void *)dev);
 661
 662         /* Clean datapath event and queue/vec mapping */
 663         rte_intr_efd_disable(intr_handle);
 664         if (intr_handle->intr_vec != NULL) {
 665                 rte_free(intr_handle->intr_vec);
 666                 intr_handle->intr_vec = NULL;
 667         }
 668
 669         return 0;
 670 }
 671
 672 /*
 673  * write interrupt vector allocation register
 674  * @hw
 675  *  board private structure
 676  * @queue_index
 677  *  queue index, valid 0,1,2,3
 678  * @tx
 679  *  tx:1, rx:0
 680  * @msix_vector
 681  *  msix-vector, valid 0,1,2,3,4
 682  */
 683 static void
 684 igc_write_ivar(struct igc_hw *hw, uint8_t queue_index,
 685                 bool tx, uint8_t msix_vector)
 686 {
 687         uint8_t offset = 0;
 688         uint8_t reg_index = queue_index >> 1;
 689         uint32_t val;
 690
 691         /*
 692          * IVAR(0)
 693          * bit31...24   bit23...16      bit15...8       bit7...0
 694          * TX1          RX1             TX0             RX0
 695          *
 696          * IVAR(1)
 697          * bit31...24   bit23...16      bit15...8       bit7...0
 698          * TX3          RX3             TX2             RX2
 699          */
 700
 701         if (tx)
 702                 offset = 8;
 703
 704         if (queue_index & 1)
 705                 offset += 16;
 706
 707         val = IGC_READ_REG_ARRAY(hw, IGC_IVAR0, reg_index);
 708
 709         /* clear bits */
 710         val &= ~((uint32_t)0xFF << offset);
 711
 712         /* write vector and valid bit */
 713         val |= (uint32_t)(msix_vector | IGC_IVAR_VALID) << offset;
 714
 715         IGC_WRITE_REG_ARRAY(hw, IGC_IVAR0, reg_index, val);
 716 }
 717
 718 /* Sets up the hardware to generate MSI-X interrupts properly
 719  * @hw
 720  *  board private structure
 721  */
 722 static void
 723 igc_configure_msix_intr(struct rte_eth_dev *dev)
 724 {
 725         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
 726         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 727         struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 728
 729         uint32_t intr_mask;
 730         uint32_t vec = IGC_MISC_VEC_ID;
 731         uint32_t base = IGC_MISC_VEC_ID;
 732         uint32_t misc_shift = 0;
 733         int i;
 734
 735         /* won't configure msix register if no mapping is done
 736          * between intr vector and event fd
 737          */
 738         if (!rte_intr_dp_is_en(intr_handle))
 739                 return;
 740
 741         if (rte_intr_allow_others(intr_handle)) {
 742                 base = IGC_RX_VEC_START;
 743                 vec = base;
 744                 misc_shift = 1;
 745         }
 746
 747         /* turn on MSI-X capability first */
 748         IGC_WRITE_REG(hw, IGC_GPIE, IGC_GPIE_MSIX_MODE |
 749                                 IGC_GPIE_PBA | IGC_GPIE_EIAME |
 750                                 IGC_GPIE_NSICR);
 751         intr_mask = RTE_LEN2MASK(intr_handle->nb_efd, uint32_t) <<
 752                 misc_shift;
 753
 754         if (dev->data->dev_conf.intr_conf.lsc)
 755                 intr_mask |= (1u << IGC_MSIX_OTHER_INTR_VEC);
 756
 757         /* enable msix auto-clear */
 758         igc_read_reg_check_set_bits(hw, IGC_EIAC, intr_mask);
 759
 760         /* set other cause interrupt vector */
 761         igc_read_reg_check_set_bits(hw, IGC_IVAR_MISC,
 762                 (uint32_t)(IGC_MSIX_OTHER_INTR_VEC | IGC_IVAR_VALID) << 8);
 763
 764         /* enable auto-mask */
 765         igc_read_reg_check_set_bits(hw, IGC_EIAM, intr_mask);
 766
 767         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 768                 igc_write_ivar(hw, i, 0, vec);
 769                 intr_handle->intr_vec[i] = vec;
 770                 if (vec < base + intr_handle->nb_efd - 1)
 771                         vec++;
 772         }
 773
 774         IGC_WRITE_FLUSH(hw);
 775 }
 776
 777 /**
 778  * It enables the interrupt mask and then enable the interrupt.
 779  *
 780  * @dev
 781  *  Pointer to struct rte_eth_dev.
 782  * @on
 783  *  Enable or Disable
 784  */
 785 static void
 786 igc_lsc_interrupt_setup(struct rte_eth_dev *dev, uint8_t on)
 787 {
 788         struct igc_interrupt *intr = IGC_DEV_PRIVATE_INTR(dev);
 789
 790         if (on)
 791                 intr->mask |= IGC_ICR_LSC;
 792         else
 793                 intr->mask &= ~IGC_ICR_LSC;
 794 }
 795
 796 /*
 797  * It enables the interrupt.
 798  * It will be called once only during nic initialized.
 799  */
 800 static void
 801 igc_rxq_interrupt_setup(struct rte_eth_dev *dev)
 802 {
 803         uint32_t mask;
 804         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
 805         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 806         struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 807         int misc_shift = rte_intr_allow_others(intr_handle) ? 1 : 0;
 808
 809         /* won't configure msix register if no mapping is done
 810          * between intr vector and event fd
 811          */
 812         if (!rte_intr_dp_is_en(intr_handle))
 813                 return;
 814
 815         mask = RTE_LEN2MASK(intr_handle->nb_efd, uint32_t) << misc_shift;
 816         IGC_WRITE_REG(hw, IGC_EIMS, mask);
 817 }
 818
 819 /*
 820  *  Get hardware rx-buffer size.
 821  */
 822 static inline int
 823 igc_get_rx_buffer_size(struct igc_hw *hw)
 824 {
 825         return (IGC_READ_REG(hw, IGC_RXPBS) & 0x3f) << 10;
 826 }
 827
 828 /*
 829  * igc_hw_control_acquire sets CTRL_EXT:DRV_LOAD bit.
 830  * For ASF and Pass Through versions of f/w this means
 831  * that the driver is loaded.
 832  */
 833 static void
 834 igc_hw_control_acquire(struct igc_hw *hw)
 835 {
 836         uint32_t ctrl_ext;
 837
 838         /* Let firmware know the driver has taken over */
 839         ctrl_ext = IGC_READ_REG(hw, IGC_CTRL_EXT);
 840         IGC_WRITE_REG(hw, IGC_CTRL_EXT, ctrl_ext | IGC_CTRL_EXT_DRV_LOAD);
 841 }
 842
 843 /*
 844  * igc_hw_control_release resets CTRL_EXT:DRV_LOAD bit.
 845  * For ASF and Pass Through versions of f/w this means that the
 846  * driver is no longer loaded.
 847  */
 848 static void
 849 igc_hw_control_release(struct igc_hw *hw)
 850 {
 851         uint32_t ctrl_ext;
 852
 853         /* Let firmware taken over control of h/w */
 854         ctrl_ext = IGC_READ_REG(hw, IGC_CTRL_EXT);
 855         IGC_WRITE_REG(hw, IGC_CTRL_EXT,
 856                         ctrl_ext & ~IGC_CTRL_EXT_DRV_LOAD);
 857 }
 858
 859 static int
 860 igc_hardware_init(struct igc_hw *hw)
 861 {
 862         uint32_t rx_buf_size;
 863         int diag;
 864
 865         /* Let the firmware know the OS is in control */
 866         igc_hw_control_acquire(hw);
 867
 868         /* Issue a global reset */
 869         igc_reset_hw(hw);
 870
 871         /* disable all wake up */
 872         IGC_WRITE_REG(hw, IGC_WUC, 0);
 873
 874         /*
 875          * Hardware flow control
 876          * - High water mark should allow for at least two standard size (1518)
 877          *   frames to be received after sending an XOFF.
 878          * - Low water mark works best when it is very near the high water mark.
 879          *   This allows the receiver to restart by sending XON when it has
 880          *   drained a bit. Here we use an arbitrary value of 1500 which will
 881          *   restart after one full frame is pulled from the buffer. There
 882          *   could be several smaller frames in the buffer and if so they will
 883          *   not trigger the XON until their total number reduces the buffer
 884          *   by 1500.
 885          */
 886         rx_buf_size = igc_get_rx_buffer_size(hw);
 887         hw->fc.high_water = rx_buf_size - (RTE_ETHER_MAX_LEN * 2);
 888         hw->fc.low_water = hw->fc.high_water - 1500;
 889         hw->fc.pause_time = IGC_FC_PAUSE_TIME;
 890         hw->fc.send_xon = 1;
 891         hw->fc.requested_mode = igc_fc_full;
 892
 893         diag = igc_init_hw(hw);
 894         if (diag < 0)
 895                 return diag;
 896
 897         igc_get_phy_info(hw);
 898         igc_check_for_link(hw);
 899
 900         return 0;
 901 }
 902
 903 static int
 904 eth_igc_start(struct rte_eth_dev *dev)
 905 {
 906         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
 907         struct igc_adapter *adapter = IGC_DEV_PRIVATE(dev);
 908         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 909         struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 910         uint32_t *speeds;
 911         int ret;
 912
 913         PMD_INIT_FUNC_TRACE();
 914
 915         /* disable all MSI-X interrupts */
 916         IGC_WRITE_REG(hw, IGC_EIMC, 0x1f);
 917         IGC_WRITE_FLUSH(hw);
 918
 919         /* clear all MSI-X interrupts */
 920         IGC_WRITE_REG(hw, IGC_EICR, 0x1f);
 921
 922         /* disable uio/vfio intr/eventfd mapping */
 923         if (!adapter->stopped)
 924                 rte_intr_disable(intr_handle);
 925
 926         /* Power up the phy. Needed to make the link go Up */
 927         eth_igc_set_link_up(dev);
 928
 929         /* Put the address into the Receive Address Array */
 930         igc_rar_set(hw, hw->mac.addr, 0);
 931
 932         /* Initialize the hardware */
 933         if (igc_hardware_init(hw)) {
 934                 PMD_DRV_LOG(ERR, "Unable to initialize the hardware");
 935                 return -EIO;
 936         }
 937         adapter->stopped = 0;
 938
 939         /* check and configure queue intr-vector mapping */
 940         if (rte_intr_cap_multiple(intr_handle) &&
 941                 dev->data->dev_conf.intr_conf.rxq) {
 942                 uint32_t intr_vector = dev->data->nb_rx_queues;
 943                 if (rte_intr_efd_enable(intr_handle, intr_vector))
 944                         return -1;
 945         }
 946
 947         if (rte_intr_dp_is_en(intr_handle) && !intr_handle->intr_vec) {
 948                 intr_handle->intr_vec = rte_zmalloc("intr_vec",
 949                         dev->data->nb_rx_queues * sizeof(int), 0);
 950                 if (intr_handle->intr_vec == NULL) {
 951                         PMD_DRV_LOG(ERR,
 952                                 "Failed to allocate %d rx_queues intr_vec",
 953                                 dev->data->nb_rx_queues);
 954                         return -ENOMEM;
 955                 }
 956         }
 957
 958         /* configure msix for rx interrupt */
 959         igc_configure_msix_intr(dev);
 960
 961         igc_tx_init(dev);
 962
 963         /* This can fail when allocating mbufs for descriptor rings */
 964         ret = igc_rx_init(dev);
 965         if (ret) {
 966                 PMD_DRV_LOG(ERR, "Unable to initialize RX hardware");
 967                 igc_dev_clear_queues(dev);
 968                 return ret;
 969         }
 970
 971         igc_clear_hw_cntrs_base_generic(hw);
 972
 973         /* VLAN Offload Settings */
 974         eth_igc_vlan_offload_set(dev,
 975                 RTE_ETH_VLAN_STRIP_MASK | RTE_ETH_VLAN_FILTER_MASK |
 976                 RTE_ETH_VLAN_EXTEND_MASK);
 977
 978         /* Setup link speed and duplex */
 979         speeds = &dev->data->dev_conf.link_speeds;
 980         if (*speeds == RTE_ETH_LINK_SPEED_AUTONEG) {
 981                 hw->phy.autoneg_advertised = IGC_ALL_SPEED_DUPLEX_2500;
 982                 hw->mac.autoneg = 1;
 983         } else {
 984                 int num_speeds = 0;
 985
 986                 if (*speeds & RTE_ETH_LINK_SPEED_FIXED) {
 987                         PMD_DRV_LOG(ERR,
 988                                     "Force speed mode currently not supported");
 989                         igc_dev_clear_queues(dev);
 990                         return -EINVAL;
 991                 }
 992
 993                 hw->phy.autoneg_advertised = 0;
 994                 hw->mac.autoneg = 1;
 995
 996                 if (*speeds & ~(RTE_ETH_LINK_SPEED_10M_HD | RTE_ETH_LINK_SPEED_10M |
 997                                 RTE_ETH_LINK_SPEED_100M_HD | RTE_ETH_LINK_SPEED_100M |
 998                                 RTE_ETH_LINK_SPEED_1G | RTE_ETH_LINK_SPEED_2_5G)) {
 999                         num_speeds = -1;
1000                         goto error_invalid_config;
1001                 }
1002                 if (*speeds & RTE_ETH_LINK_SPEED_10M_HD) {
1003                         hw->phy.autoneg_advertised |= ADVERTISE_10_HALF;
1004                         num_speeds++;
1005                 }
1006                 if (*speeds & RTE_ETH_LINK_SPEED_10M) {
1007                         hw->phy.autoneg_advertised |= ADVERTISE_10_FULL;
1008                         num_speeds++;
1009                 }
1010                 if (*speeds & RTE_ETH_LINK_SPEED_100M_HD) {
1011                         hw->phy.autoneg_advertised |= ADVERTISE_100_HALF;
1012                         num_speeds++;
1013                 }
1014                 if (*speeds & RTE_ETH_LINK_SPEED_100M) {
1015                         hw->phy.autoneg_advertised |= ADVERTISE_100_FULL;
1016                         num_speeds++;
1017                 }
1018                 if (*speeds & RTE_ETH_LINK_SPEED_1G) {
1019                         hw->phy.autoneg_advertised |= ADVERTISE_1000_FULL;
1020                         num_speeds++;
1021                 }
1022                 if (*speeds & RTE_ETH_LINK_SPEED_2_5G) {
1023                         hw->phy.autoneg_advertised |= ADVERTISE_2500_FULL;
1024                         num_speeds++;
1025                 }
1026                 if (num_speeds == 0)
1027                         goto error_invalid_config;
1028         }
1029
1030         igc_setup_link(hw);
1031
1032         if (rte_intr_allow_others(intr_handle)) {
1033                 /* check if lsc interrupt is enabled */
1034                 if (dev->data->dev_conf.intr_conf.lsc)
1035                         igc_lsc_interrupt_setup(dev, 1);
1036                 else
1037                         igc_lsc_interrupt_setup(dev, 0);
1038         } else {
1039                 rte_intr_callback_unregister(intr_handle,
1040                                              eth_igc_interrupt_handler,
1041                                              (void *)dev);
1042                 if (dev->data->dev_conf.intr_conf.lsc)
1043                         PMD_DRV_LOG(INFO,
1044                                 "LSC won't enable because of no intr multiplex");
1045         }
1046
1047         /* enable uio/vfio intr/eventfd mapping */
1048         rte_intr_enable(intr_handle);
1049
1050         rte_eal_alarm_set(IGC_ALARM_INTERVAL,
1051                         igc_update_queue_stats_handler, dev);
1052
1053         /* check if rxq interrupt is enabled */
1054         if (dev->data->dev_conf.intr_conf.rxq &&
1055                         rte_intr_dp_is_en(intr_handle))
1056                 igc_rxq_interrupt_setup(dev);
1057
1058         /* resume enabled intr since hw reset */
1059         igc_intr_other_enable(dev);
1060
1061         eth_igc_rxtx_control(dev, true);
1062         eth_igc_link_update(dev, 0);
1063
1064         /* configure MAC-loopback mode */
1065         if (dev->data->dev_conf.lpbk_mode == 1) {
1066                 uint32_t reg_val;
1067
1068                 reg_val = IGC_READ_REG(hw, IGC_CTRL);
1069                 reg_val &= ~IGC_CTRL_SPEED_MASK;
1070                 reg_val |= IGC_CTRL_SLU | IGC_CTRL_FRCSPD |
1071                         IGC_CTRL_FRCDPX | IGC_CTRL_FD | IGC_CTRL_SPEED_2500;
1072                 IGC_WRITE_REG(hw, IGC_CTRL, reg_val);
1073
1074                 igc_read_reg_check_set_bits(hw, IGC_EEER, IGC_EEER_EEE_FRC_AN);
1075         }
1076
1077         return 0;
1078
1079 error_invalid_config:
1080         PMD_DRV_LOG(ERR, "Invalid advertised speeds (%u) for port %u",
1081                      dev->data->dev_conf.link_speeds, dev->data->port_id);
1082         igc_dev_clear_queues(dev);
1083         return -EINVAL;
1084 }
1085
1086 static int
1087 igc_reset_swfw_lock(struct igc_hw *hw)
1088 {
1089         int ret_val;
1090
1091         /*
1092          * Do mac ops initialization manually here, since we will need
1093          * some function pointers set by this call.
1094          */
1095         ret_val = igc_init_mac_params(hw);
1096         if (ret_val)
1097                 return ret_val;
1098
1099         /*
1100          * SMBI lock should not fail in this early stage. If this is the case,
1101          * it is due to an improper exit of the application.
1102          * So force the release of the faulty lock.
1103          */
1104         if (igc_get_hw_semaphore_generic(hw) < 0)
1105                 PMD_DRV_LOG(DEBUG, "SMBI lock released");
1106
1107         igc_put_hw_semaphore_generic(hw);
1108
1109         if (hw->mac.ops.acquire_swfw_sync != NULL) {
1110                 uint16_t mask;
1111
1112                 /*
1113                  * Phy lock should not fail in this early stage.
1114                  * If this is the case, it is due to an improper exit of the
1115                  * application. So force the release of the faulty lock.
1116                  */
1117                 mask = IGC_SWFW_PHY0_SM;
1118                 if (hw->mac.ops.acquire_swfw_sync(hw, mask) < 0) {
1119                         PMD_DRV_LOG(DEBUG, "SWFW phy%d lock released",
1120                                     hw->bus.func);
1121                 }
1122                 hw->mac.ops.release_swfw_sync(hw, mask);
1123
1124                 /*
1125                  * This one is more tricky since it is common to all ports; but
1126                  * swfw_sync retries last long enough (1s) to be almost sure
1127                  * that if lock can not be taken it is due to an improper lock
1128                  * of the semaphore.
1129                  */
1130                 mask = IGC_SWFW_EEP_SM;
1131                 if (hw->mac.ops.acquire_swfw_sync(hw, mask) < 0)
1132                         PMD_DRV_LOG(DEBUG, "SWFW common locks released");
1133
1134                 hw->mac.ops.release_swfw_sync(hw, mask);
1135         }
1136
1137         return IGC_SUCCESS;
1138 }
1139
1140 /*
1141  * free all rx/tx queues.
1142  */
1143 static void
1144 igc_dev_free_queues(struct rte_eth_dev *dev)
1145 {
1146         uint16_t i;
1147
1148         for (i = 0; i < dev->data->nb_rx_queues; i++) {
1149                 eth_igc_rx_queue_release(dev, i);
1150                 dev->data->rx_queues[i] = NULL;
1151         }
1152         dev->data->nb_rx_queues = 0;
1153
1154         for (i = 0; i < dev->data->nb_tx_queues; i++) {
1155                 eth_igc_tx_queue_release(dev, i);
1156                 dev->data->tx_queues[i] = NULL;
1157         }
1158         dev->data->nb_tx_queues = 0;
1159 }
1160
1161 static int
1162 eth_igc_close(struct rte_eth_dev *dev)
1163 {
1164         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1165         struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
1166         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1167         struct igc_adapter *adapter = IGC_DEV_PRIVATE(dev);
1168         int retry = 0;
1169         int ret = 0;
1170
1171         PMD_INIT_FUNC_TRACE();
1172         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1173                 return 0;
1174
1175         if (!adapter->stopped)
1176                 ret = eth_igc_stop(dev);
1177
1178         igc_flow_flush(dev, NULL);
1179         igc_clear_all_filter(dev);
1180
1181         igc_intr_other_disable(dev);
1182         do {
1183                 int ret = rte_intr_callback_unregister(intr_handle,
1184                                 eth_igc_interrupt_handler, dev);
1185                 if (ret >= 0 || ret == -ENOENT || ret == -EINVAL)
1186                         break;
1187
1188                 PMD_DRV_LOG(ERR, "intr callback unregister failed: %d", ret);
1189                 DELAY(200 * 1000); /* delay 200ms */
1190         } while (retry++ < 5);
1191
1192         igc_phy_hw_reset(hw);
1193         igc_hw_control_release(hw);
1194         igc_dev_free_queues(dev);
1195
1196         /* Reset any pending lock */
1197         igc_reset_swfw_lock(hw);
1198
1199         return ret;
1200 }
1201
1202 static void
1203 igc_identify_hardware(struct rte_eth_dev *dev, struct rte_pci_device *pci_dev)
1204 {
1205         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1206
1207         hw->vendor_id = pci_dev->id.vendor_id;
1208         hw->device_id = pci_dev->id.device_id;
1209         hw->subsystem_vendor_id = pci_dev->id.subsystem_vendor_id;
1210         hw->subsystem_device_id = pci_dev->id.subsystem_device_id;
1211 }
1212
1213 static int
1214 eth_igc_dev_init(struct rte_eth_dev *dev)
1215 {
1216         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1217         struct igc_adapter *igc = IGC_DEV_PRIVATE(dev);
1218         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1219         int i, error = 0;
1220
1221         PMD_INIT_FUNC_TRACE();
1222         dev->dev_ops = &eth_igc_ops;
1223         dev->rx_queue_count = eth_igc_rx_queue_count;
1224         dev->rx_descriptor_status = eth_igc_rx_descriptor_status;
1225         dev->tx_descriptor_status = eth_igc_tx_descriptor_status;
1226
1227         /*
1228          * for secondary processes, we don't initialize any further as primary
1229          * has already done this work. Only check we don't need a different
1230          * RX function.
1231          */
1232         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1233                 return 0;
1234
1235         rte_eth_copy_pci_info(dev, pci_dev);
1236         dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
1237
1238         hw->back = pci_dev;
1239         hw->hw_addr = (void *)pci_dev->mem_resource[0].addr;
1240
1241         igc_identify_hardware(dev, pci_dev);
1242         if (igc_setup_init_funcs(hw, false) != IGC_SUCCESS) {
1243                 error = -EIO;
1244                 goto err_late;
1245         }
1246
1247         igc_get_bus_info(hw);
1248
1249         /* Reset any pending lock */
1250         if (igc_reset_swfw_lock(hw) != IGC_SUCCESS) {
1251                 error = -EIO;
1252                 goto err_late;
1253         }
1254
1255         /* Finish initialization */
1256         if (igc_setup_init_funcs(hw, true) != IGC_SUCCESS) {
1257                 error = -EIO;
1258                 goto err_late;
1259         }
1260
1261         hw->mac.autoneg = 1;
1262         hw->phy.autoneg_wait_to_complete = 0;
1263         hw->phy.autoneg_advertised = IGC_ALL_SPEED_DUPLEX_2500;
1264
1265         /* Copper options */
1266         if (hw->phy.media_type == igc_media_type_copper) {
1267                 hw->phy.mdix = 0; /* AUTO_ALL_MODES */
1268                 hw->phy.disable_polarity_correction = 0;
1269                 hw->phy.ms_type = igc_ms_hw_default;
1270         }
1271
1272         /*
1273          * Start from a known state, this is important in reading the nvm
1274          * and mac from that.
1275          */
1276         igc_reset_hw(hw);
1277
1278         /* Make sure we have a good EEPROM before we read from it */
1279         if (igc_validate_nvm_checksum(hw) < 0) {
1280                 /*
1281                  * Some PCI-E parts fail the first check due to
1282                  * the link being in sleep state, call it again,
1283                  * if it fails a second time its a real issue.
1284                  */
1285                 if (igc_validate_nvm_checksum(hw) < 0) {
1286                         PMD_INIT_LOG(ERR, "EEPROM checksum invalid");
1287                         error = -EIO;
1288                         goto err_late;
1289                 }
1290         }
1291
1292         /* Read the permanent MAC address out of the EEPROM */
1293         if (igc_read_mac_addr(hw) != 0) {
1294                 PMD_INIT_LOG(ERR, "EEPROM error while reading MAC address");
1295                 error = -EIO;
1296                 goto err_late;
1297         }
1298
1299         /* Allocate memory for storing MAC addresses */
1300         dev->data->mac_addrs = rte_zmalloc("igc",
1301                 RTE_ETHER_ADDR_LEN * hw->mac.rar_entry_count, 0);
1302         if (dev->data->mac_addrs == NULL) {
1303                 PMD_INIT_LOG(ERR, "Failed to allocate %d bytes for storing MAC",
1304                                 RTE_ETHER_ADDR_LEN * hw->mac.rar_entry_count);
1305                 error = -ENOMEM;
1306                 goto err_late;
1307         }
1308
1309         /* Copy the permanent MAC address */
1310         rte_ether_addr_copy((struct rte_ether_addr *)hw->mac.addr,
1311                         &dev->data->mac_addrs[0]);
1312
1313         /* Now initialize the hardware */
1314         if (igc_hardware_init(hw) != 0) {
1315                 PMD_INIT_LOG(ERR, "Hardware initialization failed");
1316                 rte_free(dev->data->mac_addrs);
1317                 dev->data->mac_addrs = NULL;
1318                 error = -ENODEV;
1319                 goto err_late;
1320         }
1321
1322         hw->mac.get_link_status = 1;
1323         igc->stopped = 0;
1324
1325         /* Indicate SOL/IDER usage */
1326         if (igc_check_reset_block(hw) < 0)
1327                 PMD_INIT_LOG(ERR,
1328                         "PHY reset is blocked due to SOL/IDER session.");
1329
1330         PMD_INIT_LOG(DEBUG, "port_id %d vendorID=0x%x deviceID=0x%x",
1331                         dev->data->port_id, pci_dev->id.vendor_id,
1332                         pci_dev->id.device_id);
1333
1334         rte_intr_callback_register(&pci_dev->intr_handle,
1335                         eth_igc_interrupt_handler, (void *)dev);
1336
1337         /* enable uio/vfio intr/eventfd mapping */
1338         rte_intr_enable(&pci_dev->intr_handle);
1339
1340         /* enable support intr */
1341         igc_intr_other_enable(dev);
1342
1343         /* initiate queue status */
1344         for (i = 0; i < IGC_QUEUE_PAIRS_NUM; i++) {
1345                 igc->txq_stats_map[i] = -1;
1346                 igc->rxq_stats_map[i] = -1;
1347         }
1348
1349         igc_flow_init(dev);
1350         igc_clear_all_filter(dev);
1351         return 0;
1352
1353 err_late:
1354         igc_hw_control_release(hw);
1355         return error;
1356 }
1357
1358 static int
1359 eth_igc_dev_uninit(__rte_unused struct rte_eth_dev *eth_dev)
1360 {
1361         PMD_INIT_FUNC_TRACE();
1362         eth_igc_close(eth_dev);
1363         return 0;
1364 }
1365
1366 static int
1367 eth_igc_reset(struct rte_eth_dev *dev)
1368 {
1369         int ret;
1370
1371         PMD_INIT_FUNC_TRACE();
1372
1373         ret = eth_igc_dev_uninit(dev);
1374         if (ret)
1375                 return ret;
1376
1377         return eth_igc_dev_init(dev);
1378 }
1379
1380 static int
1381 eth_igc_promiscuous_enable(struct rte_eth_dev *dev)
1382 {
1383         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1384         uint32_t rctl;
1385
1386         rctl = IGC_READ_REG(hw, IGC_RCTL);
1387         rctl |= (IGC_RCTL_UPE | IGC_RCTL_MPE);
1388         IGC_WRITE_REG(hw, IGC_RCTL, rctl);
1389         return 0;
1390 }
1391
1392 static int
1393 eth_igc_promiscuous_disable(struct rte_eth_dev *dev)
1394 {
1395         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1396         uint32_t rctl;
1397
1398         rctl = IGC_READ_REG(hw, IGC_RCTL);
1399         rctl &= (~IGC_RCTL_UPE);
1400         if (dev->data->all_multicast == 1)
1401                 rctl |= IGC_RCTL_MPE;
1402         else
1403                 rctl &= (~IGC_RCTL_MPE);
1404         IGC_WRITE_REG(hw, IGC_RCTL, rctl);
1405         return 0;
1406 }
1407
1408 static int
1409 eth_igc_allmulticast_enable(struct rte_eth_dev *dev)
1410 {
1411         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1412         uint32_t rctl;
1413
1414         rctl = IGC_READ_REG(hw, IGC_RCTL);
1415         rctl |= IGC_RCTL_MPE;
1416         IGC_WRITE_REG(hw, IGC_RCTL, rctl);
1417         return 0;
1418 }
1419
1420 static int
1421 eth_igc_allmulticast_disable(struct rte_eth_dev *dev)
1422 {
1423         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1424         uint32_t rctl;
1425
1426         if (dev->data->promiscuous == 1)
1427                 return 0;       /* must remain in all_multicast mode */
1428
1429         rctl = IGC_READ_REG(hw, IGC_RCTL);
1430         rctl &= (~IGC_RCTL_MPE);
1431         IGC_WRITE_REG(hw, IGC_RCTL, rctl);
1432         return 0;
1433 }
1434
1435 static int
1436 eth_igc_fw_version_get(struct rte_eth_dev *dev, char *fw_version,
1437                        size_t fw_size)
1438 {
1439         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1440         struct igc_fw_version fw;
1441         int ret;
1442
1443         igc_get_fw_version(hw, &fw);
1444
1445         /* if option rom is valid, display its version too */
1446         if (fw.or_valid) {
1447                 ret = snprintf(fw_version, fw_size,
1448                          "%d.%d, 0x%08x, %d.%d.%d",
1449                          fw.eep_major, fw.eep_minor, fw.etrack_id,
1450                          fw.or_major, fw.or_build, fw.or_patch);
1451         /* no option rom */
1452         } else {
1453                 if (fw.etrack_id != 0X0000) {
1454                         ret = snprintf(fw_version, fw_size,
1455                                  "%d.%d, 0x%08x",
1456                                  fw.eep_major, fw.eep_minor,
1457                                  fw.etrack_id);
1458                 } else {
1459                         ret = snprintf(fw_version, fw_size,
1460                                  "%d.%d.%d",
1461                                  fw.eep_major, fw.eep_minor,
1462                                  fw.eep_build);
1463                 }
1464         }
1465         if (ret < 0)
1466                 return -EINVAL;
1467
1468         ret += 1; /* add the size of '\0' */
1469         if (fw_size < (size_t)ret)
1470                 return ret;
1471         else
1472                 return 0;
1473 }
1474
1475 static int
1476 eth_igc_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
1477 {
1478         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1479
1480         dev_info->min_rx_bufsize = 256; /* See BSIZE field of RCTL register. */
1481         dev_info->max_rx_pktlen = MAX_RX_JUMBO_FRAME_SIZE;
1482         dev_info->max_mac_addrs = hw->mac.rar_entry_count;
1483         dev_info->rx_offload_capa = IGC_RX_OFFLOAD_ALL;
1484         dev_info->tx_offload_capa = IGC_TX_OFFLOAD_ALL;
1485         dev_info->rx_queue_offload_capa = RTE_ETH_RX_OFFLOAD_VLAN_STRIP;
1486
1487         dev_info->max_rx_queues = IGC_QUEUE_PAIRS_NUM;
1488         dev_info->max_tx_queues = IGC_QUEUE_PAIRS_NUM;
1489         dev_info->max_vmdq_pools = 0;
1490
1491         dev_info->hash_key_size = IGC_HKEY_MAX_INDEX * sizeof(uint32_t);
1492         dev_info->reta_size = RTE_ETH_RSS_RETA_SIZE_128;
1493         dev_info->flow_type_rss_offloads = IGC_RSS_OFFLOAD_ALL;
1494
1495         dev_info->default_rxconf = (struct rte_eth_rxconf) {
1496                 .rx_thresh = {
1497                         .pthresh = IGC_DEFAULT_RX_PTHRESH,
1498                         .hthresh = IGC_DEFAULT_RX_HTHRESH,
1499                         .wthresh = IGC_DEFAULT_RX_WTHRESH,
1500                 },
1501                 .rx_free_thresh = IGC_DEFAULT_RX_FREE_THRESH,
1502                 .rx_drop_en = 0,
1503                 .offloads = 0,
1504         };
1505
1506         dev_info->default_txconf = (struct rte_eth_txconf) {
1507                 .tx_thresh = {
1508                         .pthresh = IGC_DEFAULT_TX_PTHRESH,
1509                         .hthresh = IGC_DEFAULT_TX_HTHRESH,
1510                         .wthresh = IGC_DEFAULT_TX_WTHRESH,
1511                 },
1512                 .offloads = 0,
1513         };
1514
1515         dev_info->rx_desc_lim = rx_desc_lim;
1516         dev_info->tx_desc_lim = tx_desc_lim;
1517
1518         dev_info->speed_capa = RTE_ETH_LINK_SPEED_10M_HD | RTE_ETH_LINK_SPEED_10M |
1519                         RTE_ETH_LINK_SPEED_100M_HD | RTE_ETH_LINK_SPEED_100M |
1520                         RTE_ETH_LINK_SPEED_1G | RTE_ETH_LINK_SPEED_2_5G;
1521
1522         dev_info->max_mtu = dev_info->max_rx_pktlen - IGC_ETH_OVERHEAD;
1523         dev_info->min_mtu = RTE_ETHER_MIN_MTU;
1524         return 0;
1525 }
1526
1527 static int
1528 eth_igc_led_on(struct rte_eth_dev *dev)
1529 {
1530         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1531
1532         return igc_led_on(hw) == IGC_SUCCESS ? 0 : -ENOTSUP;
1533 }
1534
1535 static int
1536 eth_igc_led_off(struct rte_eth_dev *dev)
1537 {
1538         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1539
1540         return igc_led_off(hw) == IGC_SUCCESS ? 0 : -ENOTSUP;
1541 }
1542
1543 static const uint32_t *
1544 eth_igc_supported_ptypes_get(__rte_unused struct rte_eth_dev *dev)
1545 {
1546         static const uint32_t ptypes[] = {
1547                 /* refers to rx_desc_pkt_info_to_pkt_type() */
1548                 RTE_PTYPE_L2_ETHER,
1549                 RTE_PTYPE_L3_IPV4,
1550                 RTE_PTYPE_L3_IPV4_EXT,
1551                 RTE_PTYPE_L3_IPV6,
1552                 RTE_PTYPE_L3_IPV6_EXT,
1553                 RTE_PTYPE_L4_TCP,
1554                 RTE_PTYPE_L4_UDP,
1555                 RTE_PTYPE_L4_SCTP,
1556                 RTE_PTYPE_TUNNEL_IP,
1557                 RTE_PTYPE_INNER_L3_IPV6,
1558                 RTE_PTYPE_INNER_L3_IPV6_EXT,
1559                 RTE_PTYPE_INNER_L4_TCP,
1560                 RTE_PTYPE_INNER_L4_UDP,
1561                 RTE_PTYPE_UNKNOWN
1562         };
1563
1564         return ptypes;
1565 }
1566
1567 static int
1568 eth_igc_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
1569 {
1570         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1571         uint32_t frame_size = mtu + IGC_ETH_OVERHEAD;
1572         uint32_t rctl;
1573
1574         /* if extend vlan has been enabled */
1575         if (IGC_READ_REG(hw, IGC_CTRL_EXT) & IGC_CTRL_EXT_EXT_VLAN)
1576                 frame_size += VLAN_TAG_SIZE;
1577
1578         /*
1579          * If device is started, refuse mtu that requires the support of
1580          * scattered packets when this feature has not been enabled before.
1581          */
1582         if (dev->data->dev_started && !dev->data->scattered_rx &&
1583             frame_size > dev->data->min_rx_buf_size - RTE_PKTMBUF_HEADROOM) {
1584                 PMD_INIT_LOG(ERR, "Stop port first.");
1585                 return -EINVAL;
1586         }
1587
1588         rctl = IGC_READ_REG(hw, IGC_RCTL);
1589         if (mtu > RTE_ETHER_MTU)
1590                 rctl |= IGC_RCTL_LPE;
1591         else
1592                 rctl &= ~IGC_RCTL_LPE;
1593         IGC_WRITE_REG(hw, IGC_RCTL, rctl);
1594
1595         IGC_WRITE_REG(hw, IGC_RLPML, frame_size);
1596
1597         return 0;
1598 }
1599
1600 static int
1601 eth_igc_rar_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr,
1602                 uint32_t index, uint32_t pool)
1603 {
1604         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1605
1606         igc_rar_set(hw, mac_addr->addr_bytes, index);
1607         RTE_SET_USED(pool);
1608         return 0;
1609 }
1610
1611 static void
1612 eth_igc_rar_clear(struct rte_eth_dev *dev, uint32_t index)
1613 {
1614         uint8_t addr[RTE_ETHER_ADDR_LEN];
1615         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1616
1617         memset(addr, 0, sizeof(addr));
1618         igc_rar_set(hw, addr, index);
1619 }
1620
1621 static int
1622 eth_igc_default_mac_addr_set(struct rte_eth_dev *dev,
1623                         struct rte_ether_addr *addr)
1624 {
1625         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1626         igc_rar_set(hw, addr->addr_bytes, 0);
1627         return 0;
1628 }
1629
1630 static int
1631 eth_igc_set_mc_addr_list(struct rte_eth_dev *dev,
1632                          struct rte_ether_addr *mc_addr_set,
1633                          uint32_t nb_mc_addr)
1634 {
1635         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1636         igc_update_mc_addr_list(hw, (u8 *)mc_addr_set, nb_mc_addr);
1637         return 0;
1638 }
1639
1640 /*
1641  * Read hardware registers
1642  */
1643 static void
1644 igc_read_stats_registers(struct igc_hw *hw, struct igc_hw_stats *stats)
1645 {
1646         int pause_frames;
1647
1648         uint64_t old_gprc  = stats->gprc;
1649         uint64_t old_gptc  = stats->gptc;
1650         uint64_t old_tpr   = stats->tpr;
1651         uint64_t old_tpt   = stats->tpt;
1652         uint64_t old_rpthc = stats->rpthc;
1653         uint64_t old_hgptc = stats->hgptc;
1654
1655         stats->crcerrs += IGC_READ_REG(hw, IGC_CRCERRS);
1656         stats->algnerrc += IGC_READ_REG(hw, IGC_ALGNERRC);
1657         stats->rxerrc += IGC_READ_REG(hw, IGC_RXERRC);
1658         stats->mpc += IGC_READ_REG(hw, IGC_MPC);
1659         stats->scc += IGC_READ_REG(hw, IGC_SCC);
1660         stats->ecol += IGC_READ_REG(hw, IGC_ECOL);
1661
1662         stats->mcc += IGC_READ_REG(hw, IGC_MCC);
1663         stats->latecol += IGC_READ_REG(hw, IGC_LATECOL);
1664         stats->colc += IGC_READ_REG(hw, IGC_COLC);
1665
1666         stats->dc += IGC_READ_REG(hw, IGC_DC);
1667         stats->tncrs += IGC_READ_REG(hw, IGC_TNCRS);
1668         stats->htdpmc += IGC_READ_REG(hw, IGC_HTDPMC);
1669         stats->rlec += IGC_READ_REG(hw, IGC_RLEC);
1670         stats->xonrxc += IGC_READ_REG(hw, IGC_XONRXC);
1671         stats->xontxc += IGC_READ_REG(hw, IGC_XONTXC);
1672
1673         /*
1674          * For watchdog management we need to know if we have been
1675          * paused during the last interval, so capture that here.
1676          */
1677         pause_frames = IGC_READ_REG(hw, IGC_XOFFRXC);
1678         stats->xoffrxc += pause_frames;
1679         stats->xofftxc += IGC_READ_REG(hw, IGC_XOFFTXC);
1680         stats->fcruc += IGC_READ_REG(hw, IGC_FCRUC);
1681         stats->prc64 += IGC_READ_REG(hw, IGC_PRC64);
1682         stats->prc127 += IGC_READ_REG(hw, IGC_PRC127);
1683         stats->prc255 += IGC_READ_REG(hw, IGC_PRC255);
1684         stats->prc511 += IGC_READ_REG(hw, IGC_PRC511);
1685         stats->prc1023 += IGC_READ_REG(hw, IGC_PRC1023);
1686         stats->prc1522 += IGC_READ_REG(hw, IGC_PRC1522);
1687         stats->gprc += IGC_READ_REG(hw, IGC_GPRC);
1688         stats->bprc += IGC_READ_REG(hw, IGC_BPRC);
1689         stats->mprc += IGC_READ_REG(hw, IGC_MPRC);
1690         stats->gptc += IGC_READ_REG(hw, IGC_GPTC);
1691
1692         /* For the 64-bit byte counters the low dword must be read first. */
1693         /* Both registers clear on the read of the high dword */
1694
1695         /* Workaround CRC bytes included in size, take away 4 bytes/packet */
1696         stats->gorc += IGC_READ_REG(hw, IGC_GORCL);
1697         stats->gorc += ((uint64_t)IGC_READ_REG(hw, IGC_GORCH) << 32);
1698         stats->gorc -= (stats->gprc - old_gprc) * RTE_ETHER_CRC_LEN;
1699         stats->gotc += IGC_READ_REG(hw, IGC_GOTCL);
1700         stats->gotc += ((uint64_t)IGC_READ_REG(hw, IGC_GOTCH) << 32);
1701         stats->gotc -= (stats->gptc - old_gptc) * RTE_ETHER_CRC_LEN;
1702
1703         stats->rnbc += IGC_READ_REG(hw, IGC_RNBC);
1704         stats->ruc += IGC_READ_REG(hw, IGC_RUC);
1705         stats->rfc += IGC_READ_REG(hw, IGC_RFC);
1706         stats->roc += IGC_READ_REG(hw, IGC_ROC);
1707         stats->rjc += IGC_READ_REG(hw, IGC_RJC);
1708
1709         stats->mgprc += IGC_READ_REG(hw, IGC_MGTPRC);
1710         stats->mgpdc += IGC_READ_REG(hw, IGC_MGTPDC);
1711         stats->mgptc += IGC_READ_REG(hw, IGC_MGTPTC);
1712         stats->b2ospc += IGC_READ_REG(hw, IGC_B2OSPC);
1713         stats->b2ogprc += IGC_READ_REG(hw, IGC_B2OGPRC);
1714         stats->o2bgptc += IGC_READ_REG(hw, IGC_O2BGPTC);
1715         stats->o2bspc += IGC_READ_REG(hw, IGC_O2BSPC);
1716
1717         stats->tpr += IGC_READ_REG(hw, IGC_TPR);
1718         stats->tpt += IGC_READ_REG(hw, IGC_TPT);
1719
1720         stats->tor += IGC_READ_REG(hw, IGC_TORL);
1721         stats->tor += ((uint64_t)IGC_READ_REG(hw, IGC_TORH) << 32);
1722         stats->tor -= (stats->tpr - old_tpr) * RTE_ETHER_CRC_LEN;
1723         stats->tot += IGC_READ_REG(hw, IGC_TOTL);
1724         stats->tot += ((uint64_t)IGC_READ_REG(hw, IGC_TOTH) << 32);
1725         stats->tot -= (stats->tpt - old_tpt) * RTE_ETHER_CRC_LEN;
1726
1727         stats->ptc64 += IGC_READ_REG(hw, IGC_PTC64);
1728         stats->ptc127 += IGC_READ_REG(hw, IGC_PTC127);
1729         stats->ptc255 += IGC_READ_REG(hw, IGC_PTC255);
1730         stats->ptc511 += IGC_READ_REG(hw, IGC_PTC511);
1731         stats->ptc1023 += IGC_READ_REG(hw, IGC_PTC1023);
1732         stats->ptc1522 += IGC_READ_REG(hw, IGC_PTC1522);
1733         stats->mptc += IGC_READ_REG(hw, IGC_MPTC);
1734         stats->bptc += IGC_READ_REG(hw, IGC_BPTC);
1735         stats->tsctc += IGC_READ_REG(hw, IGC_TSCTC);
1736
1737         stats->iac += IGC_READ_REG(hw, IGC_IAC);
1738         stats->rpthc += IGC_READ_REG(hw, IGC_RPTHC);
1739         stats->hgptc += IGC_READ_REG(hw, IGC_HGPTC);
1740         stats->icrxdmtc += IGC_READ_REG(hw, IGC_ICRXDMTC);
1741
1742         /* Host to Card Statistics */
1743         stats->hgorc += IGC_READ_REG(hw, IGC_HGORCL);
1744         stats->hgorc += ((uint64_t)IGC_READ_REG(hw, IGC_HGORCH) << 32);
1745         stats->hgorc -= (stats->rpthc - old_rpthc) * RTE_ETHER_CRC_LEN;
1746         stats->hgotc += IGC_READ_REG(hw, IGC_HGOTCL);
1747         stats->hgotc += ((uint64_t)IGC_READ_REG(hw, IGC_HGOTCH) << 32);
1748         stats->hgotc -= (stats->hgptc - old_hgptc) * RTE_ETHER_CRC_LEN;
1749         stats->lenerrs += IGC_READ_REG(hw, IGC_LENERRS);
1750 }
1751
1752 /*
1753  * Write 0 to all queue status registers
1754  */
1755 static void
1756 igc_reset_queue_stats_register(struct igc_hw *hw)
1757 {
1758         int i;
1759
1760         for (i = 0; i < IGC_QUEUE_PAIRS_NUM; i++) {
1761                 IGC_WRITE_REG(hw, IGC_PQGPRC(i), 0);
1762                 IGC_WRITE_REG(hw, IGC_PQGPTC(i), 0);
1763                 IGC_WRITE_REG(hw, IGC_PQGORC(i), 0);
1764                 IGC_WRITE_REG(hw, IGC_PQGOTC(i), 0);
1765                 IGC_WRITE_REG(hw, IGC_PQMPRC(i), 0);
1766                 IGC_WRITE_REG(hw, IGC_RQDPC(i), 0);
1767                 IGC_WRITE_REG(hw, IGC_TQDPC(i), 0);
1768         }
1769 }
1770
1771 /*
1772  * Read all hardware queue status registers
1773  */
1774 static void
1775 igc_read_queue_stats_register(struct rte_eth_dev *dev)
1776 {
1777         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1778         struct igc_hw_queue_stats *queue_stats =
1779                                 IGC_DEV_PRIVATE_QUEUE_STATS(dev);
1780         int i;
1781
1782         /*
1783          * This register is not cleared on read. Furthermore, the register wraps
1784          * around back to 0x00000000 on the next increment when reaching a value
1785          * of 0xFFFFFFFF and then continues normal count operation.
1786          */
1787         for (i = 0; i < IGC_QUEUE_PAIRS_NUM; i++) {
1788                 union {
1789                         u64 ddword;
1790                         u32 dword[2];
1791                 } value;
1792                 u32 tmp;
1793
1794                 /*
1795                  * Read the register first, if the value is smaller than that
1796                  * previous read, that mean the register has been overflowed,
1797                  * then we add the high 4 bytes by 1 and replace the low 4
1798                  * bytes by the new value.
1799                  */
1800                 tmp = IGC_READ_REG(hw, IGC_PQGPRC(i));
1801                 value.ddword = queue_stats->pqgprc[i];
1802                 if (value.dword[U32_0_IN_U64] > tmp)
1803                         value.dword[U32_1_IN_U64]++;
1804                 value.dword[U32_0_IN_U64] = tmp;
1805                 queue_stats->pqgprc[i] = value.ddword;
1806
1807                 tmp = IGC_READ_REG(hw, IGC_PQGPTC(i));
1808                 value.ddword = queue_stats->pqgptc[i];
1809                 if (value.dword[U32_0_IN_U64] > tmp)
1810                         value.dword[U32_1_IN_U64]++;
1811                 value.dword[U32_0_IN_U64] = tmp;
1812                 queue_stats->pqgptc[i] = value.ddword;
1813
1814                 tmp = IGC_READ_REG(hw, IGC_PQGORC(i));
1815                 value.ddword = queue_stats->pqgorc[i];
1816                 if (value.dword[U32_0_IN_U64] > tmp)
1817                         value.dword[U32_1_IN_U64]++;
1818                 value.dword[U32_0_IN_U64] = tmp;
1819                 queue_stats->pqgorc[i] = value.ddword;
1820
1821                 tmp = IGC_READ_REG(hw, IGC_PQGOTC(i));
1822                 value.ddword = queue_stats->pqgotc[i];
1823                 if (value.dword[U32_0_IN_U64] > tmp)
1824                         value.dword[U32_1_IN_U64]++;
1825                 value.dword[U32_0_IN_U64] = tmp;
1826                 queue_stats->pqgotc[i] = value.ddword;
1827
1828                 tmp = IGC_READ_REG(hw, IGC_PQMPRC(i));
1829                 value.ddword = queue_stats->pqmprc[i];
1830                 if (value.dword[U32_0_IN_U64] > tmp)
1831                         value.dword[U32_1_IN_U64]++;
1832                 value.dword[U32_0_IN_U64] = tmp;
1833                 queue_stats->pqmprc[i] = value.ddword;
1834
1835                 tmp = IGC_READ_REG(hw, IGC_RQDPC(i));
1836                 value.ddword = queue_stats->rqdpc[i];
1837                 if (value.dword[U32_0_IN_U64] > tmp)
1838                         value.dword[U32_1_IN_U64]++;
1839                 value.dword[U32_0_IN_U64] = tmp;
1840                 queue_stats->rqdpc[i] = value.ddword;
1841
1842                 tmp = IGC_READ_REG(hw, IGC_TQDPC(i));
1843                 value.ddword = queue_stats->tqdpc[i];
1844                 if (value.dword[U32_0_IN_U64] > tmp)
1845                         value.dword[U32_1_IN_U64]++;
1846                 value.dword[U32_0_IN_U64] = tmp;
1847                 queue_stats->tqdpc[i] = value.ddword;
1848         }
1849 }
1850
1851 static int
1852 eth_igc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *rte_stats)
1853 {
1854         struct igc_adapter *igc = IGC_DEV_PRIVATE(dev);
1855         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1856         struct igc_hw_stats *stats = IGC_DEV_PRIVATE_STATS(dev);
1857         struct igc_hw_queue_stats *queue_stats =
1858                         IGC_DEV_PRIVATE_QUEUE_STATS(dev);
1859         int i;
1860
1861         /*
1862          * Cancel status handler since it will read the queue status registers
1863          */
1864         rte_eal_alarm_cancel(igc_update_queue_stats_handler, dev);
1865
1866         /* Read status register */
1867         igc_read_queue_stats_register(dev);
1868         igc_read_stats_registers(hw, stats);
1869
1870         if (rte_stats == NULL) {
1871                 /* Restart queue status handler */
1872                 rte_eal_alarm_set(IGC_ALARM_INTERVAL,
1873                                 igc_update_queue_stats_handler, dev);
1874                 return -EINVAL;
1875         }
1876
1877         /* Rx Errors */
1878         rte_stats->imissed = stats->mpc;
1879         rte_stats->ierrors = stats->crcerrs + stats->rlec +
1880                         stats->rxerrc + stats->algnerrc;
1881
1882         /* Tx Errors */
1883         rte_stats->oerrors = stats->ecol + stats->latecol;
1884
1885         rte_stats->ipackets = stats->gprc;
1886         rte_stats->opackets = stats->gptc;
1887         rte_stats->ibytes   = stats->gorc;
1888         rte_stats->obytes   = stats->gotc;
1889
1890         /* Get per-queue statuses */
1891         for (i = 0; i < IGC_QUEUE_PAIRS_NUM; i++) {
1892                 /* GET TX queue statuses */
1893                 int map_id = igc->txq_stats_map[i];
1894                 if (map_id >= 0) {
1895                         rte_stats->q_opackets[map_id] += queue_stats->pqgptc[i];
1896                         rte_stats->q_obytes[map_id] += queue_stats->pqgotc[i];
1897                 }
1898                 /* Get RX queue statuses */
1899                 map_id = igc->rxq_stats_map[i];
1900                 if (map_id >= 0) {
1901                         rte_stats->q_ipackets[map_id] += queue_stats->pqgprc[i];
1902                         rte_stats->q_ibytes[map_id] += queue_stats->pqgorc[i];
1903                         rte_stats->q_errors[map_id] += queue_stats->rqdpc[i];
1904                 }
1905         }
1906
1907         /* Restart queue status handler */
1908         rte_eal_alarm_set(IGC_ALARM_INTERVAL,
1909                         igc_update_queue_stats_handler, dev);
1910         return 0;
1911 }
1912
1913 static int
1914 eth_igc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
1915                    unsigned int n)
1916 {
1917         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1918         struct igc_hw_stats *hw_stats =
1919                         IGC_DEV_PRIVATE_STATS(dev);
1920         unsigned int i;
1921
1922         igc_read_stats_registers(hw, hw_stats);
1923
1924         if (n < IGC_NB_XSTATS)
1925                 return IGC_NB_XSTATS;
1926
1927         /* If this is a reset xstats is NULL, and we have cleared the
1928          * registers by reading them.
1929          */
1930         if (!xstats)
1931                 return 0;
1932
1933         /* Extended stats */
1934         for (i = 0; i < IGC_NB_XSTATS; i++) {
1935                 xstats[i].id = i;
1936                 xstats[i].value = *(uint64_t *)(((char *)hw_stats) +
1937                         rte_igc_stats_strings[i].offset);
1938         }
1939
1940         return IGC_NB_XSTATS;
1941 }
1942
1943 static int
1944 eth_igc_xstats_reset(struct rte_eth_dev *dev)
1945 {
1946         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
1947         struct igc_hw_stats *hw_stats = IGC_DEV_PRIVATE_STATS(dev);
1948         struct igc_hw_queue_stats *queue_stats =
1949                         IGC_DEV_PRIVATE_QUEUE_STATS(dev);
1950
1951         /* Cancel queue status handler for avoid conflict */
1952         rte_eal_alarm_cancel(igc_update_queue_stats_handler, dev);
1953
1954         /* HW registers are cleared on read */
1955         igc_reset_queue_stats_register(hw);
1956         igc_read_stats_registers(hw, hw_stats);
1957
1958         /* Reset software totals */
1959         memset(hw_stats, 0, sizeof(*hw_stats));
1960         memset(queue_stats, 0, sizeof(*queue_stats));
1961
1962         /* Restart the queue status handler */
1963         rte_eal_alarm_set(IGC_ALARM_INTERVAL, igc_update_queue_stats_handler,
1964                         dev);
1965
1966         return 0;
1967 }
1968
1969 static int
1970 eth_igc_xstats_get_names(__rte_unused struct rte_eth_dev *dev,
1971         struct rte_eth_xstat_name *xstats_names, unsigned int size)
1972 {
1973         unsigned int i;
1974
1975         if (xstats_names == NULL)
1976                 return IGC_NB_XSTATS;
1977
1978         if (size < IGC_NB_XSTATS) {
1979                 PMD_DRV_LOG(ERR, "not enough buffers!");
1980                 return IGC_NB_XSTATS;
1981         }
1982
1983         for (i = 0; i < IGC_NB_XSTATS; i++)
1984                 strlcpy(xstats_names[i].name, rte_igc_stats_strings[i].name,
1985                         sizeof(xstats_names[i].name));
1986
1987         return IGC_NB_XSTATS;
1988 }
1989
1990 static int
1991 eth_igc_xstats_get_names_by_id(struct rte_eth_dev *dev,
1992                 const uint64_t *ids, struct rte_eth_xstat_name *xstats_names,
1993                 unsigned int limit)
1994 {
1995         unsigned int i;
1996
1997         if (!ids)
1998                 return eth_igc_xstats_get_names(dev, xstats_names, limit);
1999
2000         for (i = 0; i < limit; i++) {
2001                 if (ids[i] >= IGC_NB_XSTATS) {
2002                         PMD_DRV_LOG(ERR, "id value isn't valid");
2003                         return -EINVAL;
2004                 }
2005                 strlcpy(xstats_names[i].name,
2006                         rte_igc_stats_strings[ids[i]].name,
2007                         sizeof(xstats_names[i].name));
2008         }
2009         return limit;
2010 }
2011
2012 static int
2013 eth_igc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
2014                 uint64_t *values, unsigned int n)
2015 {
2016         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2017         struct igc_hw_stats *hw_stats = IGC_DEV_PRIVATE_STATS(dev);
2018         unsigned int i;
2019
2020         igc_read_stats_registers(hw, hw_stats);
2021
2022         if (!ids) {
2023                 if (n < IGC_NB_XSTATS)
2024                         return IGC_NB_XSTATS;
2025
2026                 /* If this is a reset xstats is NULL, and we have cleared the
2027                  * registers by reading them.
2028                  */
2029                 if (!values)
2030                         return 0;
2031
2032                 /* Extended stats */
2033                 for (i = 0; i < IGC_NB_XSTATS; i++)
2034                         values[i] = *(uint64_t *)(((char *)hw_stats) +
2035                                         rte_igc_stats_strings[i].offset);
2036
2037                 return IGC_NB_XSTATS;
2038
2039         } else {
2040                 for (i = 0; i < n; i++) {
2041                         if (ids[i] >= IGC_NB_XSTATS) {
2042                                 PMD_DRV_LOG(ERR, "id value isn't valid");
2043                                 return -EINVAL;
2044                         }
2045                         values[i] = *(uint64_t *)(((char *)hw_stats) +
2046                                         rte_igc_stats_strings[ids[i]].offset);
2047                 }
2048                 return n;
2049         }
2050 }
2051
2052 static int
2053 eth_igc_queue_stats_mapping_set(struct rte_eth_dev *dev,
2054                 uint16_t queue_id, uint8_t stat_idx, uint8_t is_rx)
2055 {
2056         struct igc_adapter *igc = IGC_DEV_PRIVATE(dev);
2057
2058         /* check queue id is valid */
2059         if (queue_id >= IGC_QUEUE_PAIRS_NUM) {
2060                 PMD_DRV_LOG(ERR, "queue id(%u) error, max is %u",
2061                         queue_id, IGC_QUEUE_PAIRS_NUM - 1);
2062                 return -EINVAL;
2063         }
2064
2065         /* store the mapping status id */
2066         if (is_rx)
2067                 igc->rxq_stats_map[queue_id] = stat_idx;
2068         else
2069                 igc->txq_stats_map[queue_id] = stat_idx;
2070
2071         return 0;
2072 }
2073
2074 static int
2075 eth_igc_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
2076 {
2077         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2078         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
2079         struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
2080         uint32_t vec = IGC_MISC_VEC_ID;
2081
2082         if (rte_intr_allow_others(intr_handle))
2083                 vec = IGC_RX_VEC_START;
2084
2085         uint32_t mask = 1u << (queue_id + vec);
2086
2087         IGC_WRITE_REG(hw, IGC_EIMC, mask);
2088         IGC_WRITE_FLUSH(hw);
2089
2090         return 0;
2091 }
2092
2093 static int
2094 eth_igc_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
2095 {
2096         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2097         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
2098         struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
2099         uint32_t vec = IGC_MISC_VEC_ID;
2100
2101         if (rte_intr_allow_others(intr_handle))
2102                 vec = IGC_RX_VEC_START;
2103
2104         uint32_t mask = 1u << (queue_id + vec);
2105
2106         IGC_WRITE_REG(hw, IGC_EIMS, mask);
2107         IGC_WRITE_FLUSH(hw);
2108
2109         rte_intr_enable(intr_handle);
2110
2111         return 0;
2112 }
2113
2114 static int
2115 eth_igc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
2116 {
2117         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2118         uint32_t ctrl;
2119         int tx_pause;
2120         int rx_pause;
2121
2122         fc_conf->pause_time = hw->fc.pause_time;
2123         fc_conf->high_water = hw->fc.high_water;
2124         fc_conf->low_water = hw->fc.low_water;
2125         fc_conf->send_xon = hw->fc.send_xon;
2126         fc_conf->autoneg = hw->mac.autoneg;
2127
2128         /*
2129          * Return rx_pause and tx_pause status according to actual setting of
2130          * the TFCE and RFCE bits in the CTRL register.
2131          */
2132         ctrl = IGC_READ_REG(hw, IGC_CTRL);
2133         if (ctrl & IGC_CTRL_TFCE)
2134                 tx_pause = 1;
2135         else
2136                 tx_pause = 0;
2137
2138         if (ctrl & IGC_CTRL_RFCE)
2139                 rx_pause = 1;
2140         else
2141                 rx_pause = 0;
2142
2143         if (rx_pause && tx_pause)
2144                 fc_conf->mode = RTE_ETH_FC_FULL;
2145         else if (rx_pause)
2146                 fc_conf->mode = RTE_ETH_FC_RX_PAUSE;
2147         else if (tx_pause)
2148                 fc_conf->mode = RTE_ETH_FC_TX_PAUSE;
2149         else
2150                 fc_conf->mode = RTE_ETH_FC_NONE;
2151
2152         return 0;
2153 }
2154
2155 static int
2156 eth_igc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
2157 {
2158         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2159         uint32_t rx_buf_size;
2160         uint32_t max_high_water;
2161         uint32_t rctl;
2162         int err;
2163
2164         if (fc_conf->autoneg != hw->mac.autoneg)
2165                 return -ENOTSUP;
2166
2167         rx_buf_size = igc_get_rx_buffer_size(hw);
2168         PMD_DRV_LOG(DEBUG, "Rx packet buffer size = 0x%x", rx_buf_size);
2169
2170         /* At least reserve one Ethernet frame for watermark */
2171         max_high_water = rx_buf_size - RTE_ETHER_MAX_LEN;
2172         if (fc_conf->high_water > max_high_water ||
2173                 fc_conf->high_water < fc_conf->low_water) {
2174                 PMD_DRV_LOG(ERR,
2175                         "Incorrect high(%u)/low(%u) water value, max is %u",
2176                         fc_conf->high_water, fc_conf->low_water,
2177                         max_high_water);
2178                 return -EINVAL;
2179         }
2180
2181         switch (fc_conf->mode) {
2182         case RTE_ETH_FC_NONE:
2183                 hw->fc.requested_mode = igc_fc_none;
2184                 break;
2185         case RTE_ETH_FC_RX_PAUSE:
2186                 hw->fc.requested_mode = igc_fc_rx_pause;
2187                 break;
2188         case RTE_ETH_FC_TX_PAUSE:
2189                 hw->fc.requested_mode = igc_fc_tx_pause;
2190                 break;
2191         case RTE_ETH_FC_FULL:
2192                 hw->fc.requested_mode = igc_fc_full;
2193                 break;
2194         default:
2195                 PMD_DRV_LOG(ERR, "unsupported fc mode: %u", fc_conf->mode);
2196                 return -EINVAL;
2197         }
2198
2199         hw->fc.pause_time     = fc_conf->pause_time;
2200         hw->fc.high_water     = fc_conf->high_water;
2201         hw->fc.low_water      = fc_conf->low_water;
2202         hw->fc.send_xon       = fc_conf->send_xon;
2203
2204         err = igc_setup_link_generic(hw);
2205         if (err == IGC_SUCCESS) {
2206                 /**
2207                  * check if we want to forward MAC frames - driver doesn't have
2208                  * native capability to do that, so we'll write the registers
2209                  * ourselves
2210                  **/
2211                 rctl = IGC_READ_REG(hw, IGC_RCTL);
2212
2213                 /* set or clear MFLCN.PMCF bit depending on configuration */
2214                 if (fc_conf->mac_ctrl_frame_fwd != 0)
2215                         rctl |= IGC_RCTL_PMCF;
2216                 else
2217                         rctl &= ~IGC_RCTL_PMCF;
2218
2219                 IGC_WRITE_REG(hw, IGC_RCTL, rctl);
2220                 IGC_WRITE_FLUSH(hw);
2221
2222                 return 0;
2223         }
2224
2225         PMD_DRV_LOG(ERR, "igc_setup_link_generic = 0x%x", err);
2226         return -EIO;
2227 }
2228
2229 static int
2230 eth_igc_rss_reta_update(struct rte_eth_dev *dev,
2231                         struct rte_eth_rss_reta_entry64 *reta_conf,
2232                         uint16_t reta_size)
2233 {
2234         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2235         uint16_t i;
2236
2237         if (reta_size != RTE_ETH_RSS_RETA_SIZE_128) {
2238                 PMD_DRV_LOG(ERR,
2239                         "The size of RSS redirection table configured(%d) doesn't match the number hardware can supported(%d)",
2240                         reta_size, RTE_ETH_RSS_RETA_SIZE_128);
2241                 return -EINVAL;
2242         }
2243
2244         RTE_BUILD_BUG_ON(RTE_ETH_RSS_RETA_SIZE_128 % IGC_RSS_RDT_REG_SIZE);
2245
2246         /* set redirection table */
2247         for (i = 0; i < RTE_ETH_RSS_RETA_SIZE_128; i += IGC_RSS_RDT_REG_SIZE) {
2248                 union igc_rss_reta_reg reta, reg;
2249                 uint16_t idx, shift;
2250                 uint8_t j, mask;
2251
2252                 idx = i / RTE_ETH_RETA_GROUP_SIZE;
2253                 shift = i % RTE_ETH_RETA_GROUP_SIZE;
2254                 mask = (uint8_t)((reta_conf[idx].mask >> shift) &
2255                                 IGC_RSS_RDT_REG_SIZE_MASK);
2256
2257                 /* if no need to update the register */
2258                 if (!mask ||
2259                     shift > (RTE_ETH_RETA_GROUP_SIZE - IGC_RSS_RDT_REG_SIZE))
2260                         continue;
2261
2262                 /* check mask whether need to read the register value first */
2263                 if (mask == IGC_RSS_RDT_REG_SIZE_MASK)
2264                         reg.dword = 0;
2265                 else
2266                         reg.dword = IGC_READ_REG_LE_VALUE(hw,
2267                                         IGC_RETA(i / IGC_RSS_RDT_REG_SIZE));
2268
2269                 /* update the register */
2270                 RTE_BUILD_BUG_ON(sizeof(reta.bytes) != IGC_RSS_RDT_REG_SIZE);
2271                 for (j = 0; j < IGC_RSS_RDT_REG_SIZE; j++) {
2272                         if (mask & (1u << j))
2273                                 reta.bytes[j] =
2274                                         (uint8_t)reta_conf[idx].reta[shift + j];
2275                         else
2276                                 reta.bytes[j] = reg.bytes[j];
2277                 }
2278                 IGC_WRITE_REG_LE_VALUE(hw,
2279                         IGC_RETA(i / IGC_RSS_RDT_REG_SIZE), reta.dword);
2280         }
2281
2282         return 0;
2283 }
2284
2285 static int
2286 eth_igc_rss_reta_query(struct rte_eth_dev *dev,
2287                        struct rte_eth_rss_reta_entry64 *reta_conf,
2288                        uint16_t reta_size)
2289 {
2290         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2291         uint16_t i;
2292
2293         if (reta_size != RTE_ETH_RSS_RETA_SIZE_128) {
2294                 PMD_DRV_LOG(ERR,
2295                         "The size of RSS redirection table configured(%d) doesn't match the number hardware can supported(%d)",
2296                         reta_size, RTE_ETH_RSS_RETA_SIZE_128);
2297                 return -EINVAL;
2298         }
2299
2300         RTE_BUILD_BUG_ON(RTE_ETH_RSS_RETA_SIZE_128 % IGC_RSS_RDT_REG_SIZE);
2301
2302         /* read redirection table */
2303         for (i = 0; i < RTE_ETH_RSS_RETA_SIZE_128; i += IGC_RSS_RDT_REG_SIZE) {
2304                 union igc_rss_reta_reg reta;
2305                 uint16_t idx, shift;
2306                 uint8_t j, mask;
2307
2308                 idx = i / RTE_ETH_RETA_GROUP_SIZE;
2309                 shift = i % RTE_ETH_RETA_GROUP_SIZE;
2310                 mask = (uint8_t)((reta_conf[idx].mask >> shift) &
2311                                 IGC_RSS_RDT_REG_SIZE_MASK);
2312
2313                 /* if no need to read register */
2314                 if (!mask ||
2315                     shift > (RTE_ETH_RETA_GROUP_SIZE - IGC_RSS_RDT_REG_SIZE))
2316                         continue;
2317
2318                 /* read register and get the queue index */
2319                 RTE_BUILD_BUG_ON(sizeof(reta.bytes) != IGC_RSS_RDT_REG_SIZE);
2320                 reta.dword = IGC_READ_REG_LE_VALUE(hw,
2321                                 IGC_RETA(i / IGC_RSS_RDT_REG_SIZE));
2322                 for (j = 0; j < IGC_RSS_RDT_REG_SIZE; j++) {
2323                         if (mask & (1u << j))
2324                                 reta_conf[idx].reta[shift + j] = reta.bytes[j];
2325                 }
2326         }
2327
2328         return 0;
2329 }
2330
2331 static int
2332 eth_igc_rss_hash_update(struct rte_eth_dev *dev,
2333                         struct rte_eth_rss_conf *rss_conf)
2334 {
2335         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2336         igc_hw_rss_hash_set(hw, rss_conf);
2337         return 0;
2338 }
2339
2340 static int
2341 eth_igc_rss_hash_conf_get(struct rte_eth_dev *dev,
2342                         struct rte_eth_rss_conf *rss_conf)
2343 {
2344         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2345         uint32_t *hash_key = (uint32_t *)rss_conf->rss_key;
2346         uint32_t mrqc;
2347         uint64_t rss_hf;
2348
2349         if (hash_key != NULL) {
2350                 int i;
2351
2352                 /* if not enough space for store hash key */
2353                 if (rss_conf->rss_key_len != IGC_HKEY_SIZE) {
2354                         PMD_DRV_LOG(ERR,
2355                                 "RSS hash key size %u in parameter doesn't match the hardware hash key size %u",
2356                                 rss_conf->rss_key_len, IGC_HKEY_SIZE);
2357                         return -EINVAL;
2358                 }
2359
2360                 /* read RSS key from register */
2361                 for (i = 0; i < IGC_HKEY_MAX_INDEX; i++)
2362                         hash_key[i] = IGC_READ_REG_LE_VALUE(hw, IGC_RSSRK(i));
2363         }
2364
2365         /* get RSS functions configured in MRQC register */
2366         mrqc = IGC_READ_REG(hw, IGC_MRQC);
2367         if ((mrqc & IGC_MRQC_ENABLE_RSS_4Q) == 0)
2368                 return 0;
2369
2370         rss_hf = 0;
2371         if (mrqc & IGC_MRQC_RSS_FIELD_IPV4)
2372                 rss_hf |= RTE_ETH_RSS_IPV4;
2373         if (mrqc & IGC_MRQC_RSS_FIELD_IPV4_TCP)
2374                 rss_hf |= RTE_ETH_RSS_NONFRAG_IPV4_TCP;
2375         if (mrqc & IGC_MRQC_RSS_FIELD_IPV6)
2376                 rss_hf |= RTE_ETH_RSS_IPV6;
2377         if (mrqc & IGC_MRQC_RSS_FIELD_IPV6_EX)
2378                 rss_hf |= RTE_ETH_RSS_IPV6_EX;
2379         if (mrqc & IGC_MRQC_RSS_FIELD_IPV6_TCP)
2380                 rss_hf |= RTE_ETH_RSS_NONFRAG_IPV6_TCP;
2381         if (mrqc & IGC_MRQC_RSS_FIELD_IPV6_TCP_EX)
2382                 rss_hf |= RTE_ETH_RSS_IPV6_TCP_EX;
2383         if (mrqc & IGC_MRQC_RSS_FIELD_IPV4_UDP)
2384                 rss_hf |= RTE_ETH_RSS_NONFRAG_IPV4_UDP;
2385         if (mrqc & IGC_MRQC_RSS_FIELD_IPV6_UDP)
2386                 rss_hf |= RTE_ETH_RSS_NONFRAG_IPV6_UDP;
2387         if (mrqc & IGC_MRQC_RSS_FIELD_IPV6_UDP_EX)
2388                 rss_hf |= RTE_ETH_RSS_IPV6_UDP_EX;
2389
2390         rss_conf->rss_hf |= rss_hf;
2391         return 0;
2392 }
2393
2394 static int
2395 eth_igc_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
2396 {
2397         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2398         struct igc_vfta *shadow_vfta = IGC_DEV_PRIVATE_VFTA(dev);
2399         uint32_t vfta;
2400         uint32_t vid_idx;
2401         uint32_t vid_bit;
2402
2403         vid_idx = (vlan_id >> IGC_VFTA_ENTRY_SHIFT) & IGC_VFTA_ENTRY_MASK;
2404         vid_bit = 1u << (vlan_id & IGC_VFTA_ENTRY_BIT_SHIFT_MASK);
2405         vfta = shadow_vfta->vfta[vid_idx];
2406         if (on)
2407                 vfta |= vid_bit;
2408         else
2409                 vfta &= ~vid_bit;
2410         IGC_WRITE_REG_ARRAY(hw, IGC_VFTA, vid_idx, vfta);
2411
2412         /* update local VFTA copy */
2413         shadow_vfta->vfta[vid_idx] = vfta;
2414
2415         return 0;
2416 }
2417
2418 static void
2419 igc_vlan_hw_filter_disable(struct rte_eth_dev *dev)
2420 {
2421         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2422         igc_read_reg_check_clear_bits(hw, IGC_RCTL,
2423                         IGC_RCTL_CFIEN | IGC_RCTL_VFE);
2424 }
2425
2426 static void
2427 igc_vlan_hw_filter_enable(struct rte_eth_dev *dev)
2428 {
2429         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2430         struct igc_vfta *shadow_vfta = IGC_DEV_PRIVATE_VFTA(dev);
2431         uint32_t reg_val;
2432         int i;
2433
2434         /* Filter Table Enable, CFI not used for packet acceptance */
2435         reg_val = IGC_READ_REG(hw, IGC_RCTL);
2436         reg_val &= ~IGC_RCTL_CFIEN;
2437         reg_val |= IGC_RCTL_VFE;
2438         IGC_WRITE_REG(hw, IGC_RCTL, reg_val);
2439
2440         /* restore VFTA table */
2441         for (i = 0; i < IGC_VFTA_SIZE; i++)
2442                 IGC_WRITE_REG_ARRAY(hw, IGC_VFTA, i, shadow_vfta->vfta[i]);
2443 }
2444
2445 static void
2446 igc_vlan_hw_strip_disable(struct rte_eth_dev *dev)
2447 {
2448         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2449
2450         igc_read_reg_check_clear_bits(hw, IGC_CTRL, IGC_CTRL_VME);
2451 }
2452
2453 static void
2454 igc_vlan_hw_strip_enable(struct rte_eth_dev *dev)
2455 {
2456         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2457
2458         igc_read_reg_check_set_bits(hw, IGC_CTRL, IGC_CTRL_VME);
2459 }
2460
2461 static int
2462 igc_vlan_hw_extend_disable(struct rte_eth_dev *dev)
2463 {
2464         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2465         uint32_t frame_size = dev->data->mtu + IGC_ETH_OVERHEAD;
2466         uint32_t ctrl_ext;
2467
2468         ctrl_ext = IGC_READ_REG(hw, IGC_CTRL_EXT);
2469
2470         /* if extend vlan hasn't been enabled */
2471         if ((ctrl_ext & IGC_CTRL_EXT_EXT_VLAN) == 0)
2472                 return 0;
2473
2474         /* Update maximum packet length */
2475         if (frame_size < RTE_ETHER_MIN_MTU + VLAN_TAG_SIZE) {
2476                 PMD_DRV_LOG(ERR, "Maximum packet length %u error, min is %u",
2477                         frame_size, VLAN_TAG_SIZE + RTE_ETHER_MIN_MTU);
2478                 return -EINVAL;
2479         }
2480         IGC_WRITE_REG(hw, IGC_RLPML, frame_size - VLAN_TAG_SIZE);
2481
2482         IGC_WRITE_REG(hw, IGC_CTRL_EXT, ctrl_ext & ~IGC_CTRL_EXT_EXT_VLAN);
2483         return 0;
2484 }
2485
2486 static int
2487 igc_vlan_hw_extend_enable(struct rte_eth_dev *dev)
2488 {
2489         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2490         uint32_t frame_size = dev->data->mtu + IGC_ETH_OVERHEAD;
2491         uint32_t ctrl_ext;
2492
2493         ctrl_ext = IGC_READ_REG(hw, IGC_CTRL_EXT);
2494
2495         /* if extend vlan has been enabled */
2496         if (ctrl_ext & IGC_CTRL_EXT_EXT_VLAN)
2497                 return 0;
2498
2499         /* Update maximum packet length */
2500         if (frame_size > MAX_RX_JUMBO_FRAME_SIZE) {
2501                 PMD_DRV_LOG(ERR, "Maximum packet length %u error, max is %u",
2502                         frame_size, MAX_RX_JUMBO_FRAME_SIZE);
2503                 return -EINVAL;
2504         }
2505         IGC_WRITE_REG(hw, IGC_RLPML, frame_size);
2506
2507         IGC_WRITE_REG(hw, IGC_CTRL_EXT, ctrl_ext | IGC_CTRL_EXT_EXT_VLAN);
2508         return 0;
2509 }
2510
2511 static int
2512 eth_igc_vlan_offload_set(struct rte_eth_dev *dev, int mask)
2513 {
2514         struct rte_eth_rxmode *rxmode;
2515
2516         rxmode = &dev->data->dev_conf.rxmode;
2517         if (mask & RTE_ETH_VLAN_STRIP_MASK) {
2518                 if (rxmode->offloads & RTE_ETH_RX_OFFLOAD_VLAN_STRIP)
2519                         igc_vlan_hw_strip_enable(dev);
2520                 else
2521                         igc_vlan_hw_strip_disable(dev);
2522         }
2523
2524         if (mask & RTE_ETH_VLAN_FILTER_MASK) {
2525                 if (rxmode->offloads & RTE_ETH_RX_OFFLOAD_VLAN_FILTER)
2526                         igc_vlan_hw_filter_enable(dev);
2527                 else
2528                         igc_vlan_hw_filter_disable(dev);
2529         }
2530
2531         if (mask & RTE_ETH_VLAN_EXTEND_MASK) {
2532                 if (rxmode->offloads & RTE_ETH_RX_OFFLOAD_VLAN_EXTEND)
2533                         return igc_vlan_hw_extend_enable(dev);
2534                 else
2535                         return igc_vlan_hw_extend_disable(dev);
2536         }
2537
2538         return 0;
2539 }
2540
2541 static int
2542 eth_igc_vlan_tpid_set(struct rte_eth_dev *dev,
2543                       enum rte_vlan_type vlan_type,
2544                       uint16_t tpid)
2545 {
2546         struct igc_hw *hw = IGC_DEV_PRIVATE_HW(dev);
2547         uint32_t reg_val;
2548
2549         /* only outer TPID of double VLAN can be configured*/
2550         if (vlan_type == RTE_ETH_VLAN_TYPE_OUTER) {
2551                 reg_val = IGC_READ_REG(hw, IGC_VET);
2552                 reg_val = (reg_val & (~IGC_VET_EXT)) |
2553                         ((uint32_t)tpid << IGC_VET_EXT_SHIFT);
2554                 IGC_WRITE_REG(hw, IGC_VET, reg_val);
2555
2556                 return 0;
2557         }
2558
2559         /* all other TPID values are read-only*/
2560         PMD_DRV_LOG(ERR, "Not supported");
2561         return -ENOTSUP;
2562 }
2563
2564 static int
2565 eth_igc_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2566         struct rte_pci_device *pci_dev)
2567 {
2568         PMD_INIT_FUNC_TRACE();
2569         return rte_eth_dev_pci_generic_probe(pci_dev,
2570                 sizeof(struct igc_adapter), eth_igc_dev_init);
2571 }
2572
2573 static int
2574 eth_igc_pci_remove(struct rte_pci_device *pci_dev)
2575 {
2576         PMD_INIT_FUNC_TRACE();
2577         return rte_eth_dev_pci_generic_remove(pci_dev, eth_igc_dev_uninit);
2578 }
2579
2580 static struct rte_pci_driver rte_igc_pmd = {
2581         .id_table = pci_id_igc_map,
2582         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
2583         .probe = eth_igc_pci_probe,
2584         .remove = eth_igc_pci_remove,
2585 };
2586
2587 RTE_PMD_REGISTER_PCI(net_igc, rte_igc_pmd);
2588 RTE_PMD_REGISTER_PCI_TABLE(net_igc, pci_id_igc_map);
2589 RTE_PMD_REGISTER_KMOD_DEP(net_igc, "* igb_uio | uio_pci_generic | vfio-pci");