linux/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/* Atlantic Network Driver
   3 * Copyright (C) 2020 Marvell International Ltd.
   4 */
   5
   6#include "aq_hw.h"
   7#include "aq_hw_utils.h"
   8#include "aq_ring.h"
   9#include "aq_nic.h"
  10#include "hw_atl/hw_atl_b0.h"
  11#include "hw_atl/hw_atl_utils.h"
  12#include "hw_atl/hw_atl_llh.h"
  13#include "hw_atl/hw_atl_llh_internal.h"
  14#include "hw_atl2_utils.h"
  15#include "hw_atl2_llh.h"
  16#include "hw_atl2_internal.h"
  17#include "hw_atl2_llh_internal.h"
  18
  19static int hw_atl2_act_rslvr_table_set(struct aq_hw_s *self, u8 location,
  20                                       u32 tag, u32 mask, u32 action);
  21
  22#define DEFAULT_BOARD_BASIC_CAPABILITIES \
  23        .is_64_dma = true,                \
  24        .op64bit = true,                  \
  25        .msix_irqs = 8U,                  \
  26        .irq_mask = ~0U,                  \
  27        .vecs = HW_ATL2_RSS_MAX,          \
  28        .tcs_max = HW_ATL2_TC_MAX,        \
  29        .rxd_alignment = 1U,              \
  30        .rxd_size = HW_ATL2_RXD_SIZE,   \
  31        .rxds_max = HW_ATL2_MAX_RXD,    \
  32        .rxds_min = HW_ATL2_MIN_RXD,    \
  33        .txd_alignment = 1U,              \
  34        .txd_size = HW_ATL2_TXD_SIZE,   \
  35        .txds_max = HW_ATL2_MAX_TXD,    \
  36        .txds_min = HW_ATL2_MIN_TXD,    \
  37        .txhwb_alignment = 4096U,         \
  38        .tx_rings = HW_ATL2_TX_RINGS,   \
  39        .rx_rings = HW_ATL2_RX_RINGS,   \
  40        .hw_features = NETIF_F_HW_CSUM |  \
  41                        NETIF_F_RXCSUM |  \
  42                        NETIF_F_RXHASH |  \
  43                        NETIF_F_SG |      \
  44                        NETIF_F_TSO |     \
  45                        NETIF_F_TSO6 |    \
  46                        NETIF_F_LRO |     \
  47                        NETIF_F_NTUPLE |  \
  48                        NETIF_F_HW_VLAN_CTAG_FILTER | \
  49                        NETIF_F_HW_VLAN_CTAG_RX |     \
  50                        NETIF_F_HW_VLAN_CTAG_TX |     \
  51                        NETIF_F_GSO_UDP_L4      |     \
  52                        NETIF_F_GSO_PARTIAL     |     \
  53                        NETIF_F_HW_TC,                \
  54        .hw_priv_flags = IFF_UNICAST_FLT, \
  55        .flow_control = true,             \
  56        .mtu = HW_ATL2_MTU_JUMBO,         \
  57        .mac_regs_count = 72,             \
  58        .hw_alive_check_addr = 0x10U,     \
  59        .priv_data_len = sizeof(struct hw_atl2_priv)
  60
  61const struct aq_hw_caps_s hw_atl2_caps_aqc113 = {
  62        DEFAULT_BOARD_BASIC_CAPABILITIES,
  63        .media_type = AQ_HW_MEDIA_TYPE_TP,
  64        .link_speed_msk = AQ_NIC_RATE_10G |
  65                          AQ_NIC_RATE_5G  |
  66                          AQ_NIC_RATE_2G5 |
  67                          AQ_NIC_RATE_1G  |
  68                          AQ_NIC_RATE_100M      |
  69                          AQ_NIC_RATE_10M,
  70};
  71
  72const struct aq_hw_caps_s hw_atl2_caps_aqc115c = {
  73        DEFAULT_BOARD_BASIC_CAPABILITIES,
  74        .media_type = AQ_HW_MEDIA_TYPE_TP,
  75        .link_speed_msk = AQ_NIC_RATE_2G5 |
  76                          AQ_NIC_RATE_1G  |
  77                          AQ_NIC_RATE_100M      |
  78                          AQ_NIC_RATE_10M,
  79};
  80
  81const struct aq_hw_caps_s hw_atl2_caps_aqc116c = {
  82        DEFAULT_BOARD_BASIC_CAPABILITIES,
  83        .media_type = AQ_HW_MEDIA_TYPE_TP,
  84        .link_speed_msk = AQ_NIC_RATE_1G  |
  85                          AQ_NIC_RATE_100M      |
  86                          AQ_NIC_RATE_10M,
  87};
  88
  89static u32 hw_atl2_sem_act_rslvr_get(struct aq_hw_s *self)
  90{
  91        return hw_atl_reg_glb_cpu_sem_get(self, HW_ATL2_FW_SM_ACT_RSLVR);
  92}
  93
  94static int hw_atl2_hw_reset(struct aq_hw_s *self)
  95{
  96        struct hw_atl2_priv *priv = (struct hw_atl2_priv *)self->priv;
  97        int err;
  98
  99        err = hw_atl2_utils_soft_reset(self);
 100        if (err)
 101                return err;
 102
 103        memset(priv, 0, sizeof(*priv));
 104
 105        self->aq_fw_ops->set_state(self, MPI_RESET);
 106
 107        err = aq_hw_err_from_flags(self);
 108
 109        return err;
 110}
 111
 112static int hw_atl2_hw_queue_to_tc_map_set(struct aq_hw_s *self)
 113{
 114        struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
 115        unsigned int tcs, q_per_tc;
 116        unsigned int tc, q;
 117        u32 rx_map = 0;
 118        u32 tx_map = 0;
 119
 120        hw_atl2_tpb_tx_tc_q_rand_map_en_set(self, 1U);
 121
 122        switch (cfg->tc_mode) {
 123        case AQ_TC_MODE_8TCS:
 124                tcs = 8;
 125                q_per_tc = 4;
 126                break;
 127        case AQ_TC_MODE_4TCS:
 128                tcs = 4;
 129                q_per_tc = 8;
 130                break;
 131        default:
 132                return -EINVAL;
 133        }
 134
 135        for (tc = 0; tc != tcs; tc++) {
 136                unsigned int tc_q_offset = tc * q_per_tc;
 137
 138                for (q = tc_q_offset; q != tc_q_offset + q_per_tc; q++) {
 139                        rx_map |= tc << HW_ATL2_RX_Q_TC_MAP_SHIFT(q);
 140                        if (HW_ATL2_RX_Q_TC_MAP_ADR(q) !=
 141                            HW_ATL2_RX_Q_TC_MAP_ADR(q + 1)) {
 142                                aq_hw_write_reg(self,
 143                                                HW_ATL2_RX_Q_TC_MAP_ADR(q),
 144                                                rx_map);
 145                                rx_map = 0;
 146                        }
 147
 148                        tx_map |= tc << HW_ATL2_TX_Q_TC_MAP_SHIFT(q);
 149                        if (HW_ATL2_TX_Q_TC_MAP_ADR(q) !=
 150                            HW_ATL2_TX_Q_TC_MAP_ADR(q + 1)) {
 151                                aq_hw_write_reg(self,
 152                                                HW_ATL2_TX_Q_TC_MAP_ADR(q),
 153                                                tx_map);
 154                                tx_map = 0;
 155                        }
 156                }
 157        }
 158
 159        return aq_hw_err_from_flags(self);
 160}
 161
 162static int hw_atl2_hw_qos_set(struct aq_hw_s *self)
 163{
 164        struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
 165        u32 tx_buff_size = HW_ATL2_TXBUF_MAX;
 166        u32 rx_buff_size = HW_ATL2_RXBUF_MAX;
 167        unsigned int prio = 0U;
 168        u32 tc = 0U;
 169
 170        /* TPS Descriptor rate init */
 171        hw_atl_tps_tx_pkt_shed_desc_rate_curr_time_res_set(self, 0x0U);
 172        hw_atl_tps_tx_pkt_shed_desc_rate_lim_set(self, 0xA);
 173
 174        /* TPS VM init */
 175        hw_atl_tps_tx_pkt_shed_desc_vm_arb_mode_set(self, 0U);
 176
 177        tx_buff_size /= cfg->tcs;
 178        rx_buff_size /= cfg->tcs;
 179        for (tc = 0; tc < cfg->tcs; tc++) {
 180                u32 threshold = 0U;
 181
 182                /* Tx buf size TC0 */
 183                hw_atl_tpb_tx_pkt_buff_size_per_tc_set(self, tx_buff_size, tc);
 184
 185                threshold = (tx_buff_size * (1024 / 32U) * 66U) / 100U;
 186                hw_atl_tpb_tx_buff_hi_threshold_per_tc_set(self, threshold, tc);
 187
 188                threshold = (tx_buff_size * (1024 / 32U) * 50U) / 100U;
 189                hw_atl_tpb_tx_buff_lo_threshold_per_tc_set(self, threshold, tc);
 190
 191                /* QoS Rx buf size per TC */
 192                hw_atl_rpb_rx_pkt_buff_size_per_tc_set(self, rx_buff_size, tc);
 193
 194                threshold = (rx_buff_size * (1024U / 32U) * 66U) / 100U;
 195                hw_atl_rpb_rx_buff_hi_threshold_per_tc_set(self, threshold, tc);
 196
 197                threshold = (rx_buff_size * (1024U / 32U) * 50U) / 100U;
 198                hw_atl_rpb_rx_buff_lo_threshold_per_tc_set(self, threshold, tc);
 199
 200                hw_atl_b0_set_fc(self, self->aq_nic_cfg->fc.req, tc);
 201        }
 202
 203        /* QoS 802.1p priority -> TC mapping */
 204        for (prio = 0; prio < 8; ++prio)
 205                hw_atl_rpf_rpb_user_priority_tc_map_set(self, prio,
 206                                                        cfg->prio_tc_map[prio]);
 207
 208        /* ATL2 Apply ring to TC mapping */
 209        hw_atl2_hw_queue_to_tc_map_set(self);
 210
 211        return aq_hw_err_from_flags(self);
 212}
 213
 214static int hw_atl2_hw_rss_set(struct aq_hw_s *self,
 215                              struct aq_rss_parameters *rss_params)
 216{
 217        u8 *indirection_table = rss_params->indirection_table;
 218        const u32 num_tcs = aq_hw_num_tcs(self);
 219        u32 rpf_redir2_enable;
 220        int tc;
 221        int i;
 222
 223        rpf_redir2_enable = num_tcs > 4 ? 1 : 0;
 224
 225        hw_atl2_rpf_redirection_table2_select_set(self, rpf_redir2_enable);
 226
 227        for (i = HW_ATL2_RSS_REDIRECTION_MAX; i--;) {
 228                for (tc = 0; tc != num_tcs; tc++) {
 229                        hw_atl2_new_rpf_rss_redir_set(self, tc, i,
 230                                                      tc *
 231                                                      aq_hw_q_per_tc(self) +
 232                                                      indirection_table[i]);
 233                }
 234        }
 235
 236        return aq_hw_err_from_flags(self);
 237}
 238
 239static int hw_atl2_hw_init_tx_tc_rate_limit(struct aq_hw_s *self)
 240{
 241        static const u32 max_weight = BIT(HW_ATL2_TPS_DATA_TCTWEIGHT_WIDTH) - 1;
 242        /* Scale factor is based on the number of bits in fractional portion */
 243        static const u32 scale = BIT(HW_ATL_TPS_DESC_RATE_Y_WIDTH);
 244        static const u32 frac_msk = HW_ATL_TPS_DESC_RATE_Y_MSK >>
 245                                    HW_ATL_TPS_DESC_RATE_Y_SHIFT;
 246        const u32 link_speed = self->aq_link_status.mbps;
 247        struct aq_nic_cfg_s *nic_cfg = self->aq_nic_cfg;
 248        unsigned long num_min_rated_tcs = 0;
 249        u32 tc_weight[AQ_CFG_TCS_MAX];
 250        u32 fixed_max_credit_4b;
 251        u32 fixed_max_credit;
 252        u8 min_rate_msk = 0;
 253        u32 sum_weight = 0;
 254        int tc;
 255
 256        /* By default max_credit is based upon MTU (in unit of 64b) */
 257        fixed_max_credit = nic_cfg->aq_hw_caps->mtu / 64;
 258        /* in unit of 4b */
 259        fixed_max_credit_4b = nic_cfg->aq_hw_caps->mtu / 4;
 260
 261        if (link_speed) {
 262                min_rate_msk = nic_cfg->tc_min_rate_msk &
 263                               (BIT(nic_cfg->tcs) - 1);
 264                num_min_rated_tcs = hweight8(min_rate_msk);
 265        }
 266
 267        /* First, calculate weights where min_rate is specified */
 268        if (num_min_rated_tcs) {
 269                for (tc = 0; tc != nic_cfg->tcs; tc++) {
 270                        if (!nic_cfg->tc_min_rate[tc]) {
 271                                tc_weight[tc] = 0;
 272                                continue;
 273                        }
 274
 275                        tc_weight[tc] = (-1L + link_speed +
 276                                         nic_cfg->tc_min_rate[tc] *
 277                                         max_weight) /
 278                                        link_speed;
 279                        tc_weight[tc] = min(tc_weight[tc], max_weight);
 280                        sum_weight += tc_weight[tc];
 281                }
 282        }
 283
 284        /* WSP, if min_rate is set for at least one TC.
 285         * RR otherwise.
 286         */
 287        hw_atl2_tps_tx_pkt_shed_data_arb_mode_set(self, min_rate_msk ? 1U : 0U);
 288        /* Data TC Arbiter takes precedence over Descriptor TC Arbiter,
 289         * leave Descriptor TC Arbiter as RR.
 290         */
 291        hw_atl_tps_tx_pkt_shed_desc_tc_arb_mode_set(self, 0U);
 292
 293        hw_atl_tps_tx_desc_rate_mode_set(self, nic_cfg->is_qos ? 1U : 0U);
 294
 295        for (tc = 0; tc != nic_cfg->tcs; tc++) {
 296                const u32 en = (nic_cfg->tc_max_rate[tc] != 0) ? 1U : 0U;
 297                const u32 desc = AQ_NIC_CFG_TCVEC2RING(nic_cfg, tc, 0);
 298                u32 weight, max_credit;
 299
 300                hw_atl_tps_tx_pkt_shed_desc_tc_max_credit_set(self, tc,
 301                                                              fixed_max_credit);
 302                hw_atl_tps_tx_pkt_shed_desc_tc_weight_set(self, tc, 0x1E);
 303
 304                if (num_min_rated_tcs) {
 305                        weight = tc_weight[tc];
 306
 307                        if (!weight && sum_weight < max_weight)
 308                                weight = (max_weight - sum_weight) /
 309                                         (nic_cfg->tcs - num_min_rated_tcs);
 310                        else if (!weight)
 311                                weight = 0x640;
 312
 313                        max_credit = max(2 * weight, fixed_max_credit_4b);
 314                } else {
 315                        weight = 0x640;
 316                        max_credit = 0xFFF0;
 317                }
 318
 319                hw_atl2_tps_tx_pkt_shed_tc_data_weight_set(self, tc, weight);
 320                hw_atl2_tps_tx_pkt_shed_tc_data_max_credit_set(self, tc,
 321                                                               max_credit);
 322
 323                hw_atl_tps_tx_desc_rate_en_set(self, desc, en);
 324
 325                if (en) {
 326                        /* Nominal rate is always 10G */
 327                        const u32 rate = 10000U * scale /
 328                                         nic_cfg->tc_max_rate[tc];
 329                        const u32 rate_int = rate >>
 330                                             HW_ATL_TPS_DESC_RATE_Y_WIDTH;
 331                        const u32 rate_frac = rate & frac_msk;
 332
 333                        hw_atl_tps_tx_desc_rate_x_set(self, desc, rate_int);
 334                        hw_atl_tps_tx_desc_rate_y_set(self, desc, rate_frac);
 335                } else {
 336                        /* A value of 1 indicates the queue is not
 337                         * rate controlled.
 338                         */
 339                        hw_atl_tps_tx_desc_rate_x_set(self, desc, 1U);
 340                        hw_atl_tps_tx_desc_rate_y_set(self, desc, 0U);
 341                }
 342        }
 343        for (tc = nic_cfg->tcs; tc != AQ_CFG_TCS_MAX; tc++) {
 344                const u32 desc = AQ_NIC_CFG_TCVEC2RING(nic_cfg, tc, 0);
 345
 346                hw_atl_tps_tx_desc_rate_en_set(self, desc, 0U);
 347                hw_atl_tps_tx_desc_rate_x_set(self, desc, 1U);
 348                hw_atl_tps_tx_desc_rate_y_set(self, desc, 0U);
 349        }
 350
 351        return aq_hw_err_from_flags(self);
 352}
 353
 354static int hw_atl2_hw_init_tx_path(struct aq_hw_s *self)
 355{
 356        struct aq_nic_cfg_s *nic_cfg = self->aq_nic_cfg;
 357
 358        /* Tx TC/RSS number config */
 359        hw_atl_tpb_tps_tx_tc_mode_set(self, nic_cfg->tc_mode);
 360
 361        hw_atl_thm_lso_tcp_flag_of_first_pkt_set(self, 0x0FF6U);
 362        hw_atl_thm_lso_tcp_flag_of_middle_pkt_set(self, 0x0FF6U);
 363        hw_atl_thm_lso_tcp_flag_of_last_pkt_set(self, 0x0F7FU);
 364
 365        /* Tx interrupts */
 366        hw_atl_tdm_tx_desc_wr_wb_irq_en_set(self, 1U);
 367
 368        /* misc */
 369        hw_atl_tdm_tx_dca_en_set(self, 0U);
 370        hw_atl_tdm_tx_dca_mode_set(self, 0U);
 371
 372        hw_atl_tpb_tx_path_scp_ins_en_set(self, 1U);
 373
 374        hw_atl2_tpb_tx_buf_clk_gate_en_set(self, 0U);
 375
 376        return aq_hw_err_from_flags(self);
 377}
 378
 379static void hw_atl2_hw_init_new_rx_filters(struct aq_hw_s *self)
 380{
 381        struct hw_atl2_priv *priv = (struct hw_atl2_priv *)self->priv;
 382        u8 *prio_tc_map = self->aq_nic_cfg->prio_tc_map;
 383        u16 action;
 384        u8 index;
 385        int i;
 386
 387        /* Action Resolver Table (ART) is used by RPF to decide which action
 388         * to take with a packet based upon input tag and tag mask, where:
 389         *  - input tag is a combination of 3-bit VLan Prio (PTP) and
 390         *    29-bit concatenation of all tags from filter block;
 391         *  - tag mask is a mask used for matching against input tag.
 392         * The input_tag is compared with the all the Requested_tags in the
 393         * Record table to find a match. Action field of the selected matched
 394         * REC entry is used for further processing. If multiple entries match,
 395         * the lowest REC entry, Action field will be selected.
 396         */
 397        hw_atl2_rpf_act_rslvr_section_en_set(self, 0xFFFF);
 398        hw_atl2_rpfl2_uc_flr_tag_set(self, HW_ATL2_RPF_TAG_BASE_UC,
 399                                     HW_ATL2_MAC_UC);
 400        hw_atl2_rpfl2_bc_flr_tag_set(self, HW_ATL2_RPF_TAG_BASE_UC);
 401
 402        /* FW reserves the beginning of ART, thus all driver entries must
 403         * start from the offset specified in FW caps.
 404         */
 405        index = priv->art_base_index + HW_ATL2_RPF_L2_PROMISC_OFF_INDEX;
 406        hw_atl2_act_rslvr_table_set(self, index, 0,
 407                                    HW_ATL2_RPF_TAG_UC_MASK |
 408                                        HW_ATL2_RPF_TAG_ALLMC_MASK,
 409                                    HW_ATL2_ACTION_DROP);
 410
 411        index = priv->art_base_index + HW_ATL2_RPF_VLAN_PROMISC_OFF_INDEX;
 412        hw_atl2_act_rslvr_table_set(self, index, 0,
 413                                    HW_ATL2_RPF_TAG_VLAN_MASK |
 414                                        HW_ATL2_RPF_TAG_UNTAG_MASK,
 415                                    HW_ATL2_ACTION_DROP);
 416
 417        /* Configure ART to map given VLan Prio (PCP) to the TC index for
 418         * RSS redirection table.
 419         */
 420        for (i = 0; i < 8; i++) {
 421                action = HW_ATL2_ACTION_ASSIGN_TC(prio_tc_map[i]);
 422
 423                index = priv->art_base_index + HW_ATL2_RPF_PCP_TO_TC_INDEX + i;
 424                hw_atl2_act_rslvr_table_set(self, index,
 425                                            i << HW_ATL2_RPF_TAG_PCP_OFFSET,
 426                                            HW_ATL2_RPF_TAG_PCP_MASK, action);
 427        }
 428}
 429
 430static void hw_atl2_hw_new_rx_filter_vlan_promisc(struct aq_hw_s *self,
 431                                                  bool promisc)
 432{
 433        u16 off_action = (!promisc &&
 434                          !hw_atl_rpfl2promiscuous_mode_en_get(self)) ?
 435                                HW_ATL2_ACTION_DROP : HW_ATL2_ACTION_DISABLE;
 436        struct hw_atl2_priv *priv = (struct hw_atl2_priv *)self->priv;
 437        u8 index;
 438
 439        index = priv->art_base_index + HW_ATL2_RPF_VLAN_PROMISC_OFF_INDEX;
 440        hw_atl2_act_rslvr_table_set(self, index, 0,
 441                                    HW_ATL2_RPF_TAG_VLAN_MASK |
 442                                    HW_ATL2_RPF_TAG_UNTAG_MASK, off_action);
 443}
 444
 445static void hw_atl2_hw_new_rx_filter_promisc(struct aq_hw_s *self, bool promisc)
 446{
 447        u16 off_action = promisc ? HW_ATL2_ACTION_DISABLE : HW_ATL2_ACTION_DROP;
 448        struct hw_atl2_priv *priv = (struct hw_atl2_priv *)self->priv;
 449        bool vlan_promisc_enable;
 450        u8 index;
 451
 452        index = priv->art_base_index + HW_ATL2_RPF_L2_PROMISC_OFF_INDEX;
 453        hw_atl2_act_rslvr_table_set(self, index, 0,
 454                                    HW_ATL2_RPF_TAG_UC_MASK |
 455                                    HW_ATL2_RPF_TAG_ALLMC_MASK,
 456                                    off_action);
 457
 458        /* turn VLAN promisc mode too */
 459        vlan_promisc_enable = hw_atl_rpf_vlan_prom_mode_en_get(self);
 460        hw_atl2_hw_new_rx_filter_vlan_promisc(self, promisc |
 461                                              vlan_promisc_enable);
 462}
 463
 464static int hw_atl2_act_rslvr_table_set(struct aq_hw_s *self, u8 location,
 465                                       u32 tag, u32 mask, u32 action)
 466{
 467        u32 val;
 468        int err;
 469
 470        err = readx_poll_timeout_atomic(hw_atl2_sem_act_rslvr_get,
 471                                        self, val, val == 1,
 472                                        1, 10000U);
 473        if (err)
 474                return err;
 475
 476        hw_atl2_rpf_act_rslvr_record_set(self, location, tag, mask,
 477                                         action);
 478
 479        hw_atl_reg_glb_cpu_sem_set(self, 1, HW_ATL2_FW_SM_ACT_RSLVR);
 480
 481        return err;
 482}
 483
 484static int hw_atl2_hw_init_rx_path(struct aq_hw_s *self)
 485{
 486        struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
 487        int i;
 488
 489        /* Rx TC/RSS number config */
 490        hw_atl_rpb_rpf_rx_traf_class_mode_set(self, cfg->tc_mode);
 491
 492        /* Rx flow control */
 493        hw_atl_rpb_rx_flow_ctl_mode_set(self, 1U);
 494
 495        hw_atl2_rpf_rss_hash_type_set(self, HW_ATL2_RPF_RSS_HASH_TYPE_ALL);
 496
 497        /* RSS Ring selection */
 498        hw_atl_b0_hw_init_rx_rss_ctrl1(self);
 499
 500        /* Multicast filters */
 501        for (i = HW_ATL2_MAC_MAX; i--;) {
 502                hw_atl_rpfl2_uc_flr_en_set(self, (i == 0U) ? 1U : 0U, i);
 503                hw_atl_rpfl2unicast_flr_act_set(self, 1U, i);
 504        }
 505
 506        hw_atl_reg_rx_flr_mcst_flr_msk_set(self, 0x00000000U);
 507        hw_atl_reg_rx_flr_mcst_flr_set(self, HW_ATL_MCAST_FLT_ANY_TO_HOST, 0U);
 508
 509        /* Vlan filters */
 510        hw_atl_rpf_vlan_outer_etht_set(self, ETH_P_8021AD);
 511        hw_atl_rpf_vlan_inner_etht_set(self, ETH_P_8021Q);
 512
 513        hw_atl_rpf_vlan_prom_mode_en_set(self, 1);
 514
 515        /* Always accept untagged packets */
 516        hw_atl_rpf_vlan_accept_untagged_packets_set(self, 1U);
 517        hw_atl_rpf_vlan_untagged_act_set(self, 1U);
 518
 519        hw_atl2_hw_init_new_rx_filters(self);
 520
 521        /* Rx Interrupts */
 522        hw_atl_rdm_rx_desc_wr_wb_irq_en_set(self, 1U);
 523
 524        hw_atl_rpfl2broadcast_flr_act_set(self, 1U);
 525        hw_atl_rpfl2broadcast_count_threshold_set(self, 0xFFFFU & (~0U / 256U));
 526
 527        hw_atl_rdm_rx_dca_en_set(self, 0U);
 528        hw_atl_rdm_rx_dca_mode_set(self, 0U);
 529
 530        return aq_hw_err_from_flags(self);
 531}
 532
 533static int hw_atl2_hw_init(struct aq_hw_s *self, const u8 *mac_addr)
 534{
 535        static u32 aq_hw_atl2_igcr_table_[4][2] = {
 536                [AQ_HW_IRQ_INVALID] = { 0x20000000U, 0x20000000U },
 537                [AQ_HW_IRQ_LEGACY]  = { 0x20000080U, 0x20000080U },
 538                [AQ_HW_IRQ_MSI]     = { 0x20000021U, 0x20000025U },
 539                [AQ_HW_IRQ_MSIX]    = { 0x20000022U, 0x20000026U },
 540        };
 541
 542        struct hw_atl2_priv *priv = (struct hw_atl2_priv *)self->priv;
 543        struct aq_nic_cfg_s *aq_nic_cfg = self->aq_nic_cfg;
 544        u8 base_index, count;
 545        int err;
 546
 547        err = hw_atl2_utils_get_action_resolve_table_caps(self, &base_index,
 548                                                          &count);
 549        if (err)
 550                return err;
 551
 552        priv->art_base_index = 8 * base_index;
 553
 554        hw_atl2_init_launchtime(self);
 555
 556        hw_atl2_hw_init_tx_path(self);
 557        hw_atl2_hw_init_rx_path(self);
 558
 559        hw_atl_b0_hw_mac_addr_set(self, mac_addr);
 560
 561        self->aq_fw_ops->set_link_speed(self, aq_nic_cfg->link_speed_msk);
 562        self->aq_fw_ops->set_state(self, MPI_INIT);
 563
 564        hw_atl2_hw_qos_set(self);
 565        hw_atl2_hw_rss_set(self, &aq_nic_cfg->aq_rss);
 566        hw_atl_b0_hw_rss_hash_set(self, &aq_nic_cfg->aq_rss);
 567
 568        hw_atl2_rpf_new_enable_set(self, 1);
 569
 570        /* Reset link status and read out initial hardware counters */
 571        self->aq_link_status.mbps = 0;
 572        self->aq_fw_ops->update_stats(self);
 573
 574        err = aq_hw_err_from_flags(self);
 575        if (err < 0)
 576                goto err_exit;
 577
 578        /* Interrupts */
 579        hw_atl_reg_irq_glb_ctl_set(self,
 580                                   aq_hw_atl2_igcr_table_[aq_nic_cfg->irq_type]
 581                                                 [(aq_nic_cfg->vecs > 1U) ?
 582                                                  1 : 0]);
 583
 584        hw_atl_itr_irq_auto_masklsw_set(self, aq_nic_cfg->aq_hw_caps->irq_mask);
 585
 586        /* Interrupts */
 587        hw_atl_reg_gen_irq_map_set(self,
 588                                   ((HW_ATL2_ERR_INT << 0x18) |
 589                                    (1U << 0x1F)) |
 590                                   ((HW_ATL2_ERR_INT << 0x10) |
 591                                    (1U << 0x17)), 0U);
 592
 593        hw_atl_b0_hw_offload_set(self, aq_nic_cfg);
 594
 595err_exit:
 596        return err;
 597}
 598
 599static int hw_atl2_hw_ring_rx_init(struct aq_hw_s *self,
 600                                   struct aq_ring_s *aq_ring,
 601                                   struct aq_ring_param_s *aq_ring_param)
 602{
 603        return hw_atl_b0_hw_ring_rx_init(self, aq_ring, aq_ring_param);
 604}
 605
 606static int hw_atl2_hw_ring_tx_init(struct aq_hw_s *self,
 607                                   struct aq_ring_s *aq_ring,
 608                                   struct aq_ring_param_s *aq_ring_param)
 609{
 610        return hw_atl_b0_hw_ring_tx_init(self, aq_ring, aq_ring_param);
 611}
 612
 613#define IS_FILTER_ENABLED(_F_) ((packet_filter & (_F_)) ? 1U : 0U)
 614
 615static int hw_atl2_hw_packet_filter_set(struct aq_hw_s *self,
 616                                        unsigned int packet_filter)
 617{
 618        hw_atl2_hw_new_rx_filter_promisc(self, IS_FILTER_ENABLED(IFF_PROMISC));
 619
 620        return hw_atl_b0_hw_packet_filter_set(self, packet_filter);
 621}
 622
 623#undef IS_FILTER_ENABLED
 624
 625static int hw_atl2_hw_multicast_list_set(struct aq_hw_s *self,
 626                                         u8 ar_mac
 627                                         [AQ_HW_MULTICAST_ADDRESS_MAX]
 628                                         [ETH_ALEN],
 629                                         u32 count)
 630{
 631        struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
 632        int err = 0;
 633
 634        if (count > (HW_ATL2_MAC_MAX - HW_ATL2_MAC_MIN)) {
 635                err = -EBADRQC;
 636                goto err_exit;
 637        }
 638        for (cfg->mc_list_count = 0U;
 639                        cfg->mc_list_count < count;
 640                        ++cfg->mc_list_count) {
 641                u32 i = cfg->mc_list_count;
 642                u32 h = (ar_mac[i][0] << 8) | (ar_mac[i][1]);
 643                u32 l = (ar_mac[i][2] << 24) | (ar_mac[i][3] << 16) |
 644                                        (ar_mac[i][4] << 8) | ar_mac[i][5];
 645
 646                hw_atl_rpfl2_uc_flr_en_set(self, 0U, HW_ATL2_MAC_MIN + i);
 647
 648                hw_atl_rpfl2unicast_dest_addresslsw_set(self, l,
 649                                                        HW_ATL2_MAC_MIN + i);
 650
 651                hw_atl_rpfl2unicast_dest_addressmsw_set(self, h,
 652                                                        HW_ATL2_MAC_MIN + i);
 653
 654                hw_atl2_rpfl2_uc_flr_tag_set(self, 1, HW_ATL2_MAC_MIN + i);
 655
 656                hw_atl_rpfl2_uc_flr_en_set(self, (cfg->is_mc_list_enabled),
 657                                           HW_ATL2_MAC_MIN + i);
 658        }
 659
 660        err = aq_hw_err_from_flags(self);
 661
 662err_exit:
 663        return err;
 664}
 665
 666static int hw_atl2_hw_interrupt_moderation_set(struct aq_hw_s *self)
 667{
 668        unsigned int i = 0U;
 669        u32 itr_tx = 2U;
 670        u32 itr_rx = 2U;
 671
 672        switch (self->aq_nic_cfg->itr) {
 673        case  AQ_CFG_INTERRUPT_MODERATION_ON:
 674        case  AQ_CFG_INTERRUPT_MODERATION_AUTO:
 675                hw_atl_tdm_tx_desc_wr_wb_irq_en_set(self, 0U);
 676                hw_atl_tdm_tdm_intr_moder_en_set(self, 1U);
 677                hw_atl_rdm_rx_desc_wr_wb_irq_en_set(self, 0U);
 678                hw_atl_rdm_rdm_intr_moder_en_set(self, 1U);
 679
 680                if (self->aq_nic_cfg->itr == AQ_CFG_INTERRUPT_MODERATION_ON) {
 681                        /* HW timers are in 2us units */
 682                        int tx_max_timer = self->aq_nic_cfg->tx_itr / 2;
 683                        int tx_min_timer = tx_max_timer / 2;
 684
 685                        int rx_max_timer = self->aq_nic_cfg->rx_itr / 2;
 686                        int rx_min_timer = rx_max_timer / 2;
 687
 688                        tx_max_timer = min(HW_ATL2_INTR_MODER_MAX,
 689                                           tx_max_timer);
 690                        tx_min_timer = min(HW_ATL2_INTR_MODER_MIN,
 691                                           tx_min_timer);
 692                        rx_max_timer = min(HW_ATL2_INTR_MODER_MAX,
 693                                           rx_max_timer);
 694                        rx_min_timer = min(HW_ATL2_INTR_MODER_MIN,
 695                                           rx_min_timer);
 696
 697                        itr_tx |= tx_min_timer << 0x8U;
 698                        itr_tx |= tx_max_timer << 0x10U;
 699                        itr_rx |= rx_min_timer << 0x8U;
 700                        itr_rx |= rx_max_timer << 0x10U;
 701                } else {
 702                        static unsigned int hw_atl2_timers_table_tx_[][2] = {
 703                                {0xfU, 0xffU}, /* 10Gbit */
 704                                {0xfU, 0x1ffU}, /* 5Gbit */
 705                                {0xfU, 0x1ffU}, /* 5Gbit 5GS */
 706                                {0xfU, 0x1ffU}, /* 2.5Gbit */
 707                                {0xfU, 0x1ffU}, /* 1Gbit */
 708                                {0xfU, 0x1ffU}, /* 100Mbit */
 709                        };
 710                        static unsigned int hw_atl2_timers_table_rx_[][2] = {
 711                                {0x6U, 0x38U},/* 10Gbit */
 712                                {0xCU, 0x70U},/* 5Gbit */
 713                                {0xCU, 0x70U},/* 5Gbit 5GS */
 714                                {0x18U, 0xE0U},/* 2.5Gbit */
 715                                {0x30U, 0x80U},/* 1Gbit */
 716                                {0x4U, 0x50U},/* 100Mbit */
 717                        };
 718                        unsigned int mbps = self->aq_link_status.mbps;
 719                        unsigned int speed_index;
 720
 721                        speed_index = hw_atl_utils_mbps_2_speed_index(mbps);
 722
 723                        /* Update user visible ITR settings */
 724                        self->aq_nic_cfg->tx_itr = hw_atl2_timers_table_tx_
 725                                                        [speed_index][1] * 2;
 726                        self->aq_nic_cfg->rx_itr = hw_atl2_timers_table_rx_
 727                                                        [speed_index][1] * 2;
 728
 729                        itr_tx |= hw_atl2_timers_table_tx_
 730                                                [speed_index][0] << 0x8U;
 731                        itr_tx |= hw_atl2_timers_table_tx_
 732                                                [speed_index][1] << 0x10U;
 733
 734                        itr_rx |= hw_atl2_timers_table_rx_
 735                                                [speed_index][0] << 0x8U;
 736                        itr_rx |= hw_atl2_timers_table_rx_
 737                                                [speed_index][1] << 0x10U;
 738                }
 739                break;
 740        case AQ_CFG_INTERRUPT_MODERATION_OFF:
 741                hw_atl_tdm_tx_desc_wr_wb_irq_en_set(self, 1U);
 742                hw_atl_tdm_tdm_intr_moder_en_set(self, 0U);
 743                hw_atl_rdm_rx_desc_wr_wb_irq_en_set(self, 1U);
 744                hw_atl_rdm_rdm_intr_moder_en_set(self, 0U);
 745                itr_tx = 0U;
 746                itr_rx = 0U;
 747                break;
 748        }
 749
 750        for (i = HW_ATL2_RINGS_MAX; i--;) {
 751                hw_atl2_reg_tx_intr_moder_ctrl_set(self, itr_tx, i);
 752                hw_atl_reg_rx_intr_moder_ctrl_set(self, itr_rx, i);
 753        }
 754
 755        return aq_hw_err_from_flags(self);
 756}
 757
 758static int hw_atl2_hw_stop(struct aq_hw_s *self)
 759{
 760        hw_atl_b0_hw_irq_disable(self, HW_ATL2_INT_MASK);
 761
 762        return 0;
 763}
 764
 765static struct aq_stats_s *hw_atl2_utils_get_hw_stats(struct aq_hw_s *self)
 766{
 767        return &self->curr_stats;
 768}
 769
 770static int hw_atl2_hw_vlan_set(struct aq_hw_s *self,
 771                               struct aq_rx_filter_vlan *aq_vlans)
 772{
 773        struct hw_atl2_priv *priv = (struct hw_atl2_priv *)self->priv;
 774        u32 queue;
 775        u8 index;
 776        int i;
 777
 778        hw_atl_rpf_vlan_prom_mode_en_set(self, 1U);
 779
 780        for (i = 0; i < HW_ATL_VLAN_MAX_FILTERS; i++) {
 781                queue = HW_ATL2_ACTION_ASSIGN_QUEUE(aq_vlans[i].queue);
 782
 783                hw_atl_rpf_vlan_flr_en_set(self, 0U, i);
 784                hw_atl_rpf_vlan_rxq_en_flr_set(self, 0U, i);
 785                index = priv->art_base_index + HW_ATL2_RPF_VLAN_USER_INDEX + i;
 786                hw_atl2_act_rslvr_table_set(self, index, 0, 0,
 787                                            HW_ATL2_ACTION_DISABLE);
 788                if (aq_vlans[i].enable) {
 789                        hw_atl_rpf_vlan_id_flr_set(self,
 790                                                   aq_vlans[i].vlan_id, i);
 791                        hw_atl_rpf_vlan_flr_act_set(self, 1U, i);
 792                        hw_atl_rpf_vlan_flr_en_set(self, 1U, i);
 793
 794                        if (aq_vlans[i].queue != 0xFF) {
 795                                hw_atl_rpf_vlan_rxq_flr_set(self,
 796                                                            aq_vlans[i].queue,
 797                                                            i);
 798                                hw_atl_rpf_vlan_rxq_en_flr_set(self, 1U, i);
 799
 800                                hw_atl2_rpf_vlan_flr_tag_set(self, i + 2, i);
 801
 802                                index = priv->art_base_index +
 803                                        HW_ATL2_RPF_VLAN_USER_INDEX + i;
 804                                hw_atl2_act_rslvr_table_set(self, index,
 805                                        (i + 2) << HW_ATL2_RPF_TAG_VLAN_OFFSET,
 806                                        HW_ATL2_RPF_TAG_VLAN_MASK, queue);
 807                        } else {
 808                                hw_atl2_rpf_vlan_flr_tag_set(self, 1, i);
 809                        }
 810                }
 811        }
 812
 813        return aq_hw_err_from_flags(self);
 814}
 815
 816static int hw_atl2_hw_vlan_ctrl(struct aq_hw_s *self, bool enable)
 817{
 818        /* set promisc in case of disabing the vlan filter */
 819        hw_atl_rpf_vlan_prom_mode_en_set(self, !enable);
 820        hw_atl2_hw_new_rx_filter_vlan_promisc(self, !enable);
 821
 822        return aq_hw_err_from_flags(self);
 823}
 824
 825const struct aq_hw_ops hw_atl2_ops = {
 826        .hw_soft_reset        = hw_atl2_utils_soft_reset,
 827        .hw_prepare           = hw_atl2_utils_initfw,
 828        .hw_set_mac_address   = hw_atl_b0_hw_mac_addr_set,
 829        .hw_init              = hw_atl2_hw_init,
 830        .hw_reset             = hw_atl2_hw_reset,
 831        .hw_start             = hw_atl_b0_hw_start,
 832        .hw_ring_tx_start     = hw_atl_b0_hw_ring_tx_start,
 833        .hw_ring_tx_stop      = hw_atl_b0_hw_ring_tx_stop,
 834        .hw_ring_rx_start     = hw_atl_b0_hw_ring_rx_start,
 835        .hw_ring_rx_stop      = hw_atl_b0_hw_ring_rx_stop,
 836        .hw_stop              = hw_atl2_hw_stop,
 837
 838        .hw_ring_tx_xmit         = hw_atl_b0_hw_ring_tx_xmit,
 839        .hw_ring_tx_head_update  = hw_atl_b0_hw_ring_tx_head_update,
 840
 841        .hw_ring_rx_receive      = hw_atl_b0_hw_ring_rx_receive,
 842        .hw_ring_rx_fill         = hw_atl_b0_hw_ring_rx_fill,
 843
 844        .hw_irq_enable           = hw_atl_b0_hw_irq_enable,
 845        .hw_irq_disable          = hw_atl_b0_hw_irq_disable,
 846        .hw_irq_read             = hw_atl_b0_hw_irq_read,
 847
 848        .hw_ring_rx_init             = hw_atl2_hw_ring_rx_init,
 849        .hw_ring_tx_init             = hw_atl2_hw_ring_tx_init,
 850        .hw_packet_filter_set        = hw_atl2_hw_packet_filter_set,
 851        .hw_filter_vlan_set          = hw_atl2_hw_vlan_set,
 852        .hw_filter_vlan_ctrl         = hw_atl2_hw_vlan_ctrl,
 853        .hw_multicast_list_set       = hw_atl2_hw_multicast_list_set,
 854        .hw_interrupt_moderation_set = hw_atl2_hw_interrupt_moderation_set,
 855        .hw_rss_set                  = hw_atl2_hw_rss_set,
 856        .hw_rss_hash_set             = hw_atl_b0_hw_rss_hash_set,
 857        .hw_tc_rate_limit_set        = hw_atl2_hw_init_tx_tc_rate_limit,
 858        .hw_get_hw_stats             = hw_atl2_utils_get_hw_stats,
 859        .hw_get_fw_version           = hw_atl2_utils_get_fw_version,
 860        .hw_set_offload              = hw_atl_b0_hw_offload_set,
 861        .hw_set_loopback             = hw_atl_b0_set_loopback,
 862        .hw_set_fc                   = hw_atl_b0_set_fc,
 863};
 864