LXR dpdk/drivers/net/hinic/base/hinic_pmd

   1/* SPDX-License-Identifier: BSD-3-Clause
   2 * Copyright(c) 2017 Huawei Technologies Co., Ltd
   3 */
   4
   5#include "hinic_compat.h"
   6#include "hinic_csr.h"
   7#include "hinic_pmd_hwdev.h"
   8#include "hinic_pmd_hwif.h"
   9#include "hinic_pmd_mgmt.h"
  10#include "hinic_pmd_mbox.h"
  11
  12#define BUF_OUT_DEFAULT_SIZE            1
  13
  14#define MAX_PF_MGMT_BUF_SIZE            2048UL
  15
  16#define MGMT_MSG_SIZE_MIN               20
  17#define MGMT_MSG_SIZE_STEP              16
  18#define MGMT_MSG_RSVD_FOR_DEV           8
  19
  20#define MGMT_MSG_TIMEOUT                5000    /* millisecond */
  21
  22#define SYNC_MSG_ID_MASK                0x1FF
  23#define ASYNC_MSG_ID_MASK               0x1FF
  24#define ASYNC_MSG_FLAG                  0x200
  25
  26#define MSG_NO_RESP                     0xFFFF
  27
  28#define MAX_MSG_SZ                      2016
  29
  30#define MSG_SZ_IS_VALID(in_size)        ((in_size) <= MAX_MSG_SZ)
  31
  32#define SYNC_MSG_ID(pf_to_mgmt)         ((pf_to_mgmt)->sync_msg_id)
  33
  34#define SYNC_MSG_ID_INC(pf_to_mgmt)     (SYNC_MSG_ID(pf_to_mgmt) = \
  35                        (SYNC_MSG_ID(pf_to_mgmt) + 1) & SYNC_MSG_ID_MASK)
  36
  37#define ASYNC_MSG_ID(pf_to_mgmt)        ((pf_to_mgmt)->async_msg_id)
  38
  39#define ASYNC_MSG_ID_INC(pf_to_mgmt)    (ASYNC_MSG_ID(pf_to_mgmt) = \
  40                        ((ASYNC_MSG_ID(pf_to_mgmt) + 1) & ASYNC_MSG_ID_MASK) \
  41                        | ASYNC_MSG_FLAG)
  42
  43#define HINIC_SEQ_ID_MAX_VAL            42
  44#define HINIC_MSG_SEG_LEN               48
  45
  46#define GET_CURR_AEQ_ELEM(eq)           GET_AEQ_ELEM((eq), (eq)->cons_idx)
  47
  48#define EQ_ELEM_DESC_TYPE_SHIFT                 0
  49#define EQ_ELEM_DESC_SRC_SHIFT                  7
  50#define EQ_ELEM_DESC_SIZE_SHIFT                 8
  51#define EQ_ELEM_DESC_WRAPPED_SHIFT              31
  52
  53#define EQ_ELEM_DESC_TYPE_MASK                  0x7FU
  54#define EQ_ELEM_DESC_SRC_MASK                   0x1U
  55#define EQ_ELEM_DESC_SIZE_MASK                  0xFFU
  56#define EQ_ELEM_DESC_WRAPPED_MASK               0x1U
  57
  58#define EQ_MSIX_RESEND_TIMER_CLEAR              1
  59
  60#define EQ_ELEM_DESC_GET(val, member)           \
  61                                (((val) >> EQ_ELEM_DESC_##member##_SHIFT) & \
  62                                EQ_ELEM_DESC_##member##_MASK)
  63
  64#define HINIC_MGMT_CHANNEL_STATUS_SHIFT         0x0
  65#define HINIC_MGMT_CHANNEL_STATUS_MASK          0x1
  66
  67#define HINIC_GET_MGMT_CHANNEL_STATUS(val, member)      \
  68        (((val) >> HINIC_##member##_SHIFT) & HINIC_##member##_MASK)
  69
  70#define HINIC_MSG_TO_MGMT_MAX_LEN               2016
  71
  72/**
  73 * mgmt_msg_len - calculate the total message length
  74 * @msg_data_len: the length of the message data
  75 * Return: the total message length
  76 */
  77static u16 mgmt_msg_len(u16 msg_data_len)
  78{
  79        /* u64 - the size of the header */
  80        u16 msg_size = (u16)(MGMT_MSG_RSVD_FOR_DEV + sizeof(u64) +
  81                             msg_data_len);
  82
  83        if (msg_size > MGMT_MSG_SIZE_MIN)
  84                msg_size = MGMT_MSG_SIZE_MIN +
  85                        ALIGN((msg_size - MGMT_MSG_SIZE_MIN),
  86                              MGMT_MSG_SIZE_STEP);
  87        else
  88                msg_size = MGMT_MSG_SIZE_MIN;
  89
  90        return msg_size;
  91}
  92
  93/**
  94 * prepare_header - prepare the header of the message
  95 * @pf_to_mgmt: PF to MGMT channel
  96 * @header: pointer of the header to prepare
  97 * @msg_len: the length of the message
  98 * @mod: module in the chip that will get the message
  99 * @ack_type: the type to response
 100 * @direction: the direction of the original message
 101 * @cmd: the command to do
 102 * @msg_id: message id
 103 */
 104static void prepare_header(struct hinic_msg_pf_to_mgmt *pf_to_mgmt,
 105                           u64 *header, int msg_len, enum hinic_mod_type mod,
 106                           enum hinic_msg_ack_type ack_type,
 107                           enum hinic_msg_direction_type direction,
 108                           u8 cmd, u32 msg_id)
 109{
 110        struct hinic_hwif *hwif = pf_to_mgmt->hwdev->hwif;
 111
 112        *header = HINIC_MSG_HEADER_SET(msg_len, MSG_LEN) |
 113                HINIC_MSG_HEADER_SET(mod, MODULE) |
 114                HINIC_MSG_HEADER_SET(msg_len, SEG_LEN) |
 115                HINIC_MSG_HEADER_SET(ack_type, NO_ACK) |
 116                HINIC_MSG_HEADER_SET(0, ASYNC_MGMT_TO_PF) |
 117                HINIC_MSG_HEADER_SET(0, SEQID) |
 118                HINIC_MSG_HEADER_SET(LAST_SEGMENT, LAST) |
 119                HINIC_MSG_HEADER_SET(direction, DIRECTION) |
 120                HINIC_MSG_HEADER_SET(cmd, CMD) |
 121                HINIC_MSG_HEADER_SET(HINIC_PCI_INTF_IDX(hwif), PCI_INTF_IDX) |
 122                HINIC_MSG_HEADER_SET(hwif->attr.port_to_port_idx, P2P_IDX) |
 123                HINIC_MSG_HEADER_SET(msg_id, MSG_ID);
 124}
 125
 126/**
 127 * prepare_mgmt_cmd - prepare the mgmt command
 128 * @mgmt_cmd: pointer to the command to prepare
 129 * @header: pointer of the header to prepare
 130 * @msg: the data of the message
 131 * @msg_len: the length of the message
 132 */
 133static void prepare_mgmt_cmd(u8 *mgmt_cmd, u64 *header, void *msg,
 134                             int msg_len)
 135{
 136        memset(mgmt_cmd, 0, MGMT_MSG_RSVD_FOR_DEV);
 137
 138        mgmt_cmd += MGMT_MSG_RSVD_FOR_DEV;
 139        memcpy(mgmt_cmd, header, sizeof(*header));
 140
 141        mgmt_cmd += sizeof(*header);
 142        memcpy(mgmt_cmd, msg, msg_len);
 143}
 144
 145/**
 146 * alloc_recv_msg - allocate received message memory
 147 * @recv_msg: pointer that will hold the allocated data
 148 * Return: 0 - success, negative - failure
 149 */
 150static int alloc_recv_msg(struct hinic_recv_msg *recv_msg)
 151{
 152        int err;
 153
 154        recv_msg->msg = kzalloc(MAX_PF_MGMT_BUF_SIZE, GFP_KERNEL);
 155        if (!recv_msg->msg) {
 156                PMD_DRV_LOG(ERR, "Allocate recv msg buf failed");
 157                return -ENOMEM;
 158        }
 159
 160        recv_msg->buf_out = kzalloc(MAX_PF_MGMT_BUF_SIZE, GFP_KERNEL);
 161        if (!recv_msg->buf_out) {
 162                PMD_DRV_LOG(ERR, "Allocate recv msg output buf failed");
 163                err = -ENOMEM;
 164                goto alloc_buf_out_err;
 165        }
 166
 167        return 0;
 168
 169alloc_buf_out_err:
 170        kfree(recv_msg->msg);
 171        return err;
 172}
 173
 174/**
 175 * free_recv_msg - free received message memory
 176 * @recv_msg: pointer that holds the allocated data
 177 */
 178static void free_recv_msg(struct hinic_recv_msg *recv_msg)
 179{
 180        kfree(recv_msg->buf_out);
 181        kfree(recv_msg->msg);
 182}
 183
 184/**
 185 * alloc_msg_buf - allocate all the message buffers of PF to MGMT channel
 186 * @pf_to_mgmt: PF to MGMT channel
 187 * Return: 0 - success, negative - failure
 188 */
 189static int alloc_msg_buf(struct hinic_msg_pf_to_mgmt *pf_to_mgmt)
 190{
 191        int err;
 192
 193        err = alloc_recv_msg(&pf_to_mgmt->recv_msg_from_mgmt);
 194        if (err) {
 195                PMD_DRV_LOG(ERR, "Allocate recv msg failed");
 196                return err;
 197        }
 198
 199        err = alloc_recv_msg(&pf_to_mgmt->recv_resp_msg_from_mgmt);
 200        if (err) {
 201                PMD_DRV_LOG(ERR, "Allocate resp recv msg failed");
 202                goto alloc_msg_for_resp_err;
 203        }
 204
 205        pf_to_mgmt->async_msg_buf = kzalloc(MAX_PF_MGMT_BUF_SIZE, GFP_KERNEL);
 206        if (!pf_to_mgmt->async_msg_buf) {
 207                PMD_DRV_LOG(ERR, "Allocate async msg buf failed");
 208                err = -ENOMEM;
 209                goto async_msg_buf_err;
 210        }
 211
 212        pf_to_mgmt->sync_msg_buf = kzalloc(MAX_PF_MGMT_BUF_SIZE, GFP_KERNEL);
 213        if (!pf_to_mgmt->sync_msg_buf)  {
 214                PMD_DRV_LOG(ERR, "Allocate sync msg buf failed");
 215                err = -ENOMEM;
 216                goto sync_msg_buf_err;
 217        }
 218
 219        return 0;
 220
 221sync_msg_buf_err:
 222        kfree(pf_to_mgmt->async_msg_buf);
 223
 224async_msg_buf_err:
 225        free_recv_msg(&pf_to_mgmt->recv_resp_msg_from_mgmt);
 226
 227alloc_msg_for_resp_err:
 228        free_recv_msg(&pf_to_mgmt->recv_msg_from_mgmt);
 229
 230        return err;
 231}
 232
 233/**
 234 * free_msg_buf - free all the message buffers of PF to MGMT channel
 235 * @pf_to_mgmt: PF to MGMT channel
 236 * Return: 0 - success, negative - failure
 237 */
 238static void free_msg_buf(struct hinic_msg_pf_to_mgmt *pf_to_mgmt)
 239{
 240        kfree(pf_to_mgmt->sync_msg_buf);
 241        kfree(pf_to_mgmt->async_msg_buf);
 242
 243        free_recv_msg(&pf_to_mgmt->recv_resp_msg_from_mgmt);
 244        free_recv_msg(&pf_to_mgmt->recv_msg_from_mgmt);
 245}
 246
 247static int hinic_get_mgmt_channel_status(void *hwdev)
 248{
 249        struct hinic_hwif *hwif = ((struct hinic_hwdev *)hwdev)->hwif;
 250        u32 val;
 251
 252        if (hinic_func_type((struct hinic_hwdev *)hwdev) == TYPE_VF)
 253                return false;
 254
 255        val = hinic_hwif_read_reg(hwif, HINIC_ICPL_RESERVD_ADDR);
 256
 257        return HINIC_GET_MGMT_CHANNEL_STATUS(val, MGMT_CHANNEL_STATUS);
 258}
 259
 260/**
 261 * send_msg_to_mgmt_async - send async message
 262 * @pf_to_mgmt: PF to MGMT channel
 263 * @mod: module in the chip that will get the message
 264 * @cmd: command of the message
 265 * @msg: the data of the message
 266 * @msg_len: the length of the message
 267 * @direction: the direction of the original message
 268 * @resp_msg_id: message id of response
 269 * Return: 0 - success, negative - failure
 270 */
 271static int send_msg_to_mgmt_async(struct hinic_msg_pf_to_mgmt *pf_to_mgmt,
 272                                  enum hinic_mod_type mod, u8 cmd,
 273                                  void *msg, u16 msg_len,
 274                                  enum hinic_msg_direction_type direction,
 275                                  u16 resp_msg_id)
 276{
 277        void *mgmt_cmd = pf_to_mgmt->async_msg_buf;
 278        struct hinic_api_cmd_chain *chain;
 279        u64 header;
 280        u16 cmd_size = mgmt_msg_len(msg_len);
 281
 282        if (direction == HINIC_MSG_RESPONSE)
 283                prepare_header(pf_to_mgmt, &header, msg_len, mod, HINIC_MSG_ACK,
 284                               direction, cmd, resp_msg_id);
 285        else
 286                prepare_header(pf_to_mgmt, &header, msg_len, mod, HINIC_MSG_ACK,
 287                               direction, cmd, ASYNC_MSG_ID(pf_to_mgmt));
 288
 289        prepare_mgmt_cmd((u8 *)mgmt_cmd, &header, msg, msg_len);
 290
 291        chain = pf_to_mgmt->cmd_chain[HINIC_API_CMD_WRITE_ASYNC_TO_MGMT_CPU];
 292
 293        return hinic_api_cmd_write(chain, HINIC_NODE_ID_MGMT_HOST, mgmt_cmd,
 294                                   cmd_size);
 295}
 296
 297/**
 298 * send_msg_to_mgmt_sync - send async message
 299 * @pf_to_mgmt: PF to MGMT channel
 300 * @mod: module in the chip that will get the message
 301 * @cmd: command of the message
 302 * @msg: the msg data
 303 * @msg_len: the msg data length
 304 * @ack_type: indicate mgmt command whether need ack or not
 305 * @direction: the direction of the original message
 306 * @resp_msg_id: msg id to response for
 307 * Return: 0 - success, negative - failure
 308 */
 309static int send_msg_to_mgmt_sync(struct hinic_msg_pf_to_mgmt *pf_to_mgmt,
 310                                 enum hinic_mod_type mod, u8 cmd,
 311                                 void *msg, u16 msg_len,
 312                                 enum hinic_msg_ack_type ack_type,
 313                                 enum hinic_msg_direction_type direction,
 314                                 __rte_unused u16 resp_msg_id)
 315{
 316        void *mgmt_cmd = pf_to_mgmt->sync_msg_buf;
 317        struct hinic_api_cmd_chain *chain;
 318        u64 header;
 319        u16 cmd_size = mgmt_msg_len(msg_len);
 320
 321        /* If fw is hot active, return failed */
 322        if (hinic_get_mgmt_channel_status(pf_to_mgmt->hwdev)) {
 323                if (mod == HINIC_MOD_COMM || mod == HINIC_MOD_L2NIC)
 324                        return HINIC_DEV_BUSY_ACTIVE_FW;
 325                else
 326                        return -EBUSY;
 327        }
 328
 329        if (direction == HINIC_MSG_RESPONSE)
 330                prepare_header(pf_to_mgmt, &header, msg_len, mod, ack_type,
 331                               direction, cmd, resp_msg_id);
 332        else
 333                prepare_header(pf_to_mgmt, &header, msg_len, mod, ack_type,
 334                               direction, cmd, SYNC_MSG_ID(pf_to_mgmt));
 335
 336        prepare_mgmt_cmd((u8 *)mgmt_cmd, &header, msg, msg_len);
 337
 338        chain = pf_to_mgmt->cmd_chain[HINIC_API_CMD_PMD_WRITE_TO_MGMT];
 339
 340        return hinic_api_cmd_write(chain, HINIC_NODE_ID_MGMT_HOST,
 341                                   mgmt_cmd, cmd_size);
 342}
 343
 344/**
 345 * hinic_pf_to_mgmt_init - initialize PF to MGMT channel
 346 * @hwdev: the pointer to the private hardware device object
 347 * Return: 0 - success, negative - failure
 348 */
 349static int hinic_pf_to_mgmt_init(struct hinic_hwdev *hwdev)
 350{
 351        struct hinic_msg_pf_to_mgmt *pf_to_mgmt;
 352        int err;
 353
 354        pf_to_mgmt = kzalloc(sizeof(*pf_to_mgmt), GFP_KERNEL);
 355        if (!pf_to_mgmt) {
 356                PMD_DRV_LOG(ERR, "Allocate pf to mgmt mem failed");
 357                return -ENOMEM;
 358        }
 359
 360        hwdev->pf_to_mgmt = pf_to_mgmt;
 361        pf_to_mgmt->hwdev = hwdev;
 362
 363        err = hinic_mutex_init(&pf_to_mgmt->sync_msg_mutex, NULL);
 364        if (err)
 365                goto mutex_init_err;
 366
 367        err = alloc_msg_buf(pf_to_mgmt);
 368        if (err) {
 369                PMD_DRV_LOG(ERR, "Allocate msg buffers failed");
 370                goto alloc_msg_buf_err;
 371        }
 372
 373        err = hinic_api_cmd_init(hwdev, pf_to_mgmt->cmd_chain);
 374        if (err) {
 375                PMD_DRV_LOG(ERR, "Init the api cmd chains failed");
 376                goto api_cmd_init_err;
 377        }
 378
 379        return 0;
 380
 381api_cmd_init_err:
 382        free_msg_buf(pf_to_mgmt);
 383
 384alloc_msg_buf_err:
 385        hinic_mutex_destroy(&pf_to_mgmt->sync_msg_mutex);
 386
 387mutex_init_err:
 388        kfree(pf_to_mgmt);
 389
 390        return err;
 391}
 392
 393/**
 394 * hinic_pf_to_mgmt_free - free PF to MGMT channel
 395 * @hwdev: the pointer to the private hardware device object
 396 */
 397static void hinic_pf_to_mgmt_free(struct hinic_hwdev *hwdev)
 398{
 399        struct hinic_msg_pf_to_mgmt *pf_to_mgmt = hwdev->pf_to_mgmt;
 400
 401        hinic_api_cmd_free(pf_to_mgmt->cmd_chain);
 402        free_msg_buf(pf_to_mgmt);
 403        hinic_mutex_destroy(&pf_to_mgmt->sync_msg_mutex);
 404        kfree(pf_to_mgmt);
 405}
 406
 407static int
 408hinic_pf_to_mgmt_sync(struct hinic_hwdev *hwdev,
 409                enum hinic_mod_type mod, u8 cmd, void *buf_in, u16 in_size,
 410                void *buf_out, u16 *out_size, u32 timeout)
 411{
 412        struct hinic_msg_pf_to_mgmt *pf_to_mgmt = hwdev->pf_to_mgmt;
 413        struct hinic_recv_msg *recv_msg;
 414        u32 timeo;
 415        int err, i;
 416
 417        err = hinic_mutex_lock(&pf_to_mgmt->sync_msg_mutex);
 418        if (err)
 419                return err;
 420
 421        SYNC_MSG_ID_INC(pf_to_mgmt);
 422        recv_msg = &pf_to_mgmt->recv_resp_msg_from_mgmt;
 423
 424        err = send_msg_to_mgmt_sync(pf_to_mgmt, mod, cmd, buf_in, in_size,
 425                                    HINIC_MSG_ACK, HINIC_MSG_DIRECT_SEND,
 426                                    MSG_NO_RESP);
 427        if (err) {
 428                PMD_DRV_LOG(ERR, "Send msg to mgmt failed");
 429                goto unlock_sync_msg;
 430        }
 431
 432        timeo = msecs_to_jiffies(timeout ? timeout : MGMT_MSG_TIMEOUT);
 433        for (i = 0; i < pf_to_mgmt->rx_aeq->poll_retry_nr; i++) {
 434                err = hinic_aeq_poll_msg(pf_to_mgmt->rx_aeq, timeo, NULL);
 435                if (err) {
 436                        PMD_DRV_LOG(ERR, "Poll mgmt rsp timeout, mod=%d cmd=%d msg_id=%u rc=%d",
 437                                mod, cmd, pf_to_mgmt->sync_msg_id, err);
 438                        err = -ETIMEDOUT;
 439                        hinic_dump_aeq_info(hwdev);
 440                        goto unlock_sync_msg;
 441                } else {
 442                        if (mod == recv_msg->mod && cmd == recv_msg->cmd &&
 443                            recv_msg->msg_id == pf_to_mgmt->sync_msg_id) {
 444                                /* the expected response polled */
 445                                break;
 446                        }
 447                        PMD_DRV_LOG(ERR, "AEQ[%d] poll(mod=%d, cmd=%d, msg_id=%u) an "
 448                                "unexpected(mod=%d, cmd=%d, msg_id=%u) response",
 449                                pf_to_mgmt->rx_aeq->q_id, mod, cmd,
 450                                pf_to_mgmt->sync_msg_id, recv_msg->mod,
 451                                recv_msg->cmd, recv_msg->msg_id);
 452                }
 453        }
 454
 455        if (i == pf_to_mgmt->rx_aeq->poll_retry_nr) {
 456                PMD_DRV_LOG(ERR, "Get %d unexpected mgmt rsp from AEQ[%d], poll mgmt rsp failed",
 457                        i, pf_to_mgmt->rx_aeq->q_id);
 458                err = -EBADMSG;
 459                goto unlock_sync_msg;
 460        }
 461
 462        rte_smp_rmb();
 463        if (recv_msg->msg_len && buf_out && out_size) {
 464                if (recv_msg->msg_len <= *out_size) {
 465                        memcpy(buf_out, recv_msg->msg,
 466                               recv_msg->msg_len);
 467                        *out_size = recv_msg->msg_len;
 468                } else {
 469                        PMD_DRV_LOG(ERR, "Mgmt rsp's msg len: %u overflow.",
 470                                recv_msg->msg_len);
 471                        err = -ERANGE;
 472                }
 473        }
 474
 475unlock_sync_msg:
 476        if (err && out_size)
 477                *out_size = 0;
 478        (void)hinic_mutex_unlock(&pf_to_mgmt->sync_msg_mutex);
 479        return err;
 480}
 481
 482int hinic_msg_to_mgmt_sync(void *hwdev, enum hinic_mod_type mod, u8 cmd,
 483                           void *buf_in, u16 in_size,
 484                           void *buf_out, u16 *out_size, u32 timeout)
 485{
 486        int rc = HINIC_ERROR;
 487
 488        if (!hwdev || in_size > HINIC_MSG_TO_MGMT_MAX_LEN)
 489                return -EINVAL;
 490
 491        if (hinic_func_type(hwdev) == TYPE_VF) {
 492                rc = hinic_mbox_to_pf(hwdev, mod, cmd, buf_in, in_size,
 493                                        buf_out, out_size, timeout);
 494        } else {
 495                rc = hinic_pf_to_mgmt_sync(hwdev, mod, cmd, buf_in, in_size,
 496                                                buf_out, out_size, timeout);
 497        }
 498
 499        return rc;
 500}
 501
 502int hinic_msg_to_mgmt_no_ack(void *hwdev, enum hinic_mod_type mod, u8 cmd,
 503                             void *buf_in, u16 in_size)
 504{
 505        struct hinic_msg_pf_to_mgmt *pf_to_mgmt =
 506                                ((struct hinic_hwdev *)hwdev)->pf_to_mgmt;
 507        int err = -EINVAL;
 508
 509        if (!MSG_SZ_IS_VALID(in_size)) {
 510                PMD_DRV_LOG(ERR, "Mgmt msg buffer size is invalid");
 511                return err;
 512        }
 513
 514        err = hinic_mutex_lock(&pf_to_mgmt->sync_msg_mutex);
 515        if (err)
 516                return err;
 517
 518        err = send_msg_to_mgmt_sync(pf_to_mgmt, mod, cmd, buf_in, in_size,
 519                                    HINIC_MSG_NO_ACK, HINIC_MSG_DIRECT_SEND,
 520                                    MSG_NO_RESP);
 521
 522        (void)hinic_mutex_unlock(&pf_to_mgmt->sync_msg_mutex);
 523
 524        return err;
 525}
 526
 527static bool check_mgmt_seq_id_and_seg_len(struct hinic_recv_msg *recv_msg,
 528                                          u8 seq_id, u8 seg_len, u16 msg_id)
 529{
 530        if (seq_id > HINIC_SEQ_ID_MAX_VAL || seg_len > HINIC_MSG_SEG_LEN)
 531                return false;
 532
 533        if (seq_id == 0) {
 534                recv_msg->seq_id = seq_id;
 535                recv_msg->msg_id = msg_id;
 536        } else {
 537                if ((seq_id != recv_msg->seq_id + 1) ||
 538                        msg_id != recv_msg->msg_id) {
 539                        recv_msg->seq_id = 0;
 540                        return false;
 541                }
 542                recv_msg->seq_id = seq_id;
 543        }
 544
 545        return true;
 546}
 547
 548/**
 549 * hinic_mgmt_recv_msg_handler - handler for message from mgmt cpu
 550 * @pf_to_mgmt: PF to MGMT channel
 551 * @recv_msg: received message details
 552 * @param: customized parameter
 553 */
 554static void hinic_mgmt_recv_msg_handler(struct hinic_msg_pf_to_mgmt *pf_to_mgmt,
 555                                        struct hinic_recv_msg *recv_msg,
 556                                        void *param)
 557{
 558        void *buf_out = recv_msg->buf_out;
 559        u16 out_size = 0;
 560
 561        switch (recv_msg->mod) {
 562        case HINIC_MOD_COMM:
 563                hinic_comm_async_event_handle(pf_to_mgmt->hwdev,
 564                                              recv_msg->cmd, recv_msg->msg,
 565                                              recv_msg->msg_len,
 566                                              buf_out, &out_size);
 567                break;
 568        case HINIC_MOD_L2NIC:
 569                hinic_l2nic_async_event_handle(pf_to_mgmt->hwdev, param,
 570                                               recv_msg->cmd, recv_msg->msg,
 571                                               recv_msg->msg_len,
 572                                               buf_out, &out_size);
 573                break;
 574        case HINIC_MOD_HILINK:
 575                hinic_hilink_async_event_handle(pf_to_mgmt->hwdev,
 576                                                recv_msg->cmd, recv_msg->msg,
 577                                                recv_msg->msg_len,
 578                                                buf_out, &out_size);
 579                break;
 580        default:
 581                PMD_DRV_LOG(ERR, "No handler, mod: %d", recv_msg->mod);
 582                break;
 583        }
 584
 585        if (!recv_msg->async_mgmt_to_pf) {
 586                if (!out_size)
 587                        out_size = BUF_OUT_DEFAULT_SIZE;
 588
 589                /* MGMT sent sync msg, send the response */
 590                (void)send_msg_to_mgmt_async(pf_to_mgmt, recv_msg->mod,
 591                                             recv_msg->cmd, buf_out, out_size,
 592                                             HINIC_MSG_RESPONSE,
 593                                             recv_msg->msg_id);
 594        }
 595}
 596
 597/**
 598 * recv_mgmt_msg_handler - handler a message from mgmt cpu
 599 * @pf_to_mgmt: PF to MGMT channel
 600 * @header: the header of the message
 601 * @recv_msg: received message details
 602 * @param: customized parameter
 603 * Return: 0 when aeq is response message, -1 default result,
 604 * and when wrong message or not last message
 605 */
 606static int recv_mgmt_msg_handler(struct hinic_msg_pf_to_mgmt *pf_to_mgmt,
 607                                 u8 *header, struct hinic_recv_msg *recv_msg,
 608                                 void *param)
 609{
 610        u64 msg_header = *((u64 *)header);
 611        void *msg_body = header + sizeof(msg_header);
 612        u8 *dest_msg;
 613        u8 seq_id, seq_len;
 614        u8 front_id;
 615        u16 msg_id;
 616
 617        seq_id = HINIC_MSG_HEADER_GET(msg_header, SEQID);
 618        seq_len = HINIC_MSG_HEADER_GET(msg_header, SEG_LEN);
 619        front_id = recv_msg->seq_id;
 620        msg_id = HINIC_MSG_HEADER_GET(msg_header, MSG_ID);
 621
 622        if (!check_mgmt_seq_id_and_seg_len(recv_msg, seq_id, seq_len, msg_id)) {
 623                PMD_DRV_LOG(ERR,
 624                        "Mgmt msg sequence and segment check failed, "
 625                        "func id: 0x%x, front id: 0x%x, current id: 0x%x, seg len: 0x%x "
 626                        "front msg_id: %d, cur msg_id: %d",
 627                        hinic_global_func_id(pf_to_mgmt->hwdev),
 628                        front_id, seq_id, seq_len, recv_msg->msg_id, msg_id);
 629                return HINIC_ERROR;
 630        }
 631
 632        dest_msg = (u8 *)recv_msg->msg + seq_id * HINIC_MSG_SEG_LEN;
 633        memcpy(dest_msg, msg_body, seq_len);
 634
 635        if (!HINIC_MSG_HEADER_GET(msg_header, LAST))
 636                return HINIC_ERROR;
 637
 638        recv_msg->cmd = HINIC_MSG_HEADER_GET(msg_header, CMD);
 639        recv_msg->mod = HINIC_MSG_HEADER_GET(msg_header, MODULE);
 640        recv_msg->async_mgmt_to_pf = HINIC_MSG_HEADER_GET(msg_header,
 641                                                          ASYNC_MGMT_TO_PF);
 642        recv_msg->msg_len = HINIC_MSG_HEADER_GET(msg_header, MSG_LEN);
 643        recv_msg->msg_id = HINIC_MSG_HEADER_GET(msg_header, MSG_ID);
 644
 645        if (HINIC_MSG_HEADER_GET(msg_header, DIRECTION) == HINIC_MSG_RESPONSE)
 646                return HINIC_OK;
 647
 648        hinic_mgmt_recv_msg_handler(pf_to_mgmt, recv_msg, param);
 649
 650        return HINIC_ERROR;
 651}
 652
 653/**
 654 * hinic_mgmt_msg_aeqe_handler - handler for a mgmt message event
 655 * @hwdev: the pointer to the private hardware device object
 656 * @header: the header of the message
 657 * @size: unused
 658 * @param: customized parameter
 659 * Return: 0 when aeq is response message,
 660 *         -1 default result, and when wrong message or not last message
 661 */
 662static int hinic_mgmt_msg_aeqe_handler(void *hwdev, u8 *header,
 663                        __rte_unused u8 size, void *param)
 664{
 665        struct hinic_msg_pf_to_mgmt *pf_to_mgmt =
 666                                ((struct hinic_hwdev *)hwdev)->pf_to_mgmt;
 667        struct hinic_recv_msg *recv_msg;
 668
 669        recv_msg = (HINIC_MSG_HEADER_GET(*(u64 *)header, DIRECTION) ==
 670                    HINIC_MSG_DIRECT_SEND) ?
 671                    &pf_to_mgmt->recv_msg_from_mgmt :
 672                    &pf_to_mgmt->recv_resp_msg_from_mgmt;
 673
 674        return recv_mgmt_msg_handler(pf_to_mgmt, header, recv_msg, param);
 675}
 676
 677static int hinic_handle_aeqe(void *handle, enum hinic_aeq_type event,
 678                      u8 *data, u8 size, void *param)
 679{
 680        int rc = 0;
 681
 682        switch (event) {
 683        case HINIC_MSG_FROM_MGMT_CPU:
 684                rc = hinic_mgmt_msg_aeqe_handler(handle, data, size, param);
 685                break;
 686        case HINIC_MBX_FROM_FUNC:
 687                rc = hinic_mbox_func_aeqe_handler(handle, data, size, param);
 688                break;
 689        default:
 690                PMD_DRV_LOG(ERR, "Unknown event type: 0x%x, size: %d",
 691                            event, size);
 692                rc = HINIC_ERROR;
 693                break;
 694        }
 695
 696        return rc;
 697}
 698
 699/**
 700 * hinic_aeq_poll_msg - poll one or continue aeqe, and call dedicated process
 701 * @eq: aeq of the chip
 702 * @timeout: 0   - poll all aeqe in eq, used in interrupt mode,
 703 *           > 0 - poll aeq until get aeqe with 'last' field set to 1,
 704 *           used in polling mode.
 705 * @param: customized parameter
 706 * Return: 0 - Success, EIO - poll timeout, ENODEV - swe not support
 707 */
 708int hinic_aeq_poll_msg(struct hinic_eq *eq, u32 timeout, void *param)
 709{
 710        struct hinic_aeq_elem *aeqe_pos;
 711        enum hinic_aeq_type event;
 712        u32 aeqe_desc = 0;
 713        u16 i;
 714        u8 size;
 715        int done = HINIC_ERROR;
 716        int err = -EFAULT;
 717        unsigned long end;
 718
 719        for (i = 0; ((timeout == 0) && (i < eq->eq_len)) ||
 720             ((timeout > 0) && (done != HINIC_OK) && (i < eq->eq_len)); i++) {
 721                err = -EIO;
 722                end = jiffies + msecs_to_jiffies(timeout);
 723                do {
 724                        aeqe_pos = GET_CURR_AEQ_ELEM(eq);
 725                        rte_rmb();
 726
 727                        /* Data in HW is in Big endian Format */
 728                        aeqe_desc = be32_to_cpu(aeqe_pos->desc);
 729
 730                        /* HW updates wrapped bit,
 731                         * when it adds eq element event
 732                         */
 733                        if (EQ_ELEM_DESC_GET(aeqe_desc, WRAPPED)
 734                            != eq->wrapped) {
 735                                err = 0;
 736                                break;
 737                        }
 738
 739                        if (timeout != 0)
 740                                usleep(1000);
 741                } while (time_before(jiffies, end));
 742
 743                if (err != HINIC_OK) /*poll time out*/
 744                        break;
 745
 746                event = EQ_ELEM_DESC_GET(aeqe_desc, TYPE);
 747                if (EQ_ELEM_DESC_GET(aeqe_desc, SRC)) {
 748                        PMD_DRV_LOG(ERR, "AEQ sw event not support %d", event);
 749                        return -ENODEV;
 750
 751                } else {
 752                        size = EQ_ELEM_DESC_GET(aeqe_desc, SIZE);
 753                        done = hinic_handle_aeqe(eq->hwdev, event,
 754                                                 aeqe_pos->aeqe_data,
 755                                                 size, param);
 756                }
 757
 758                eq->cons_idx++;
 759                if (eq->cons_idx == eq->eq_len) {
 760                        eq->cons_idx = 0;
 761                        eq->wrapped = !eq->wrapped;
 762                }
 763        }
 764
 765        eq_update_ci(eq);
 766
 767        return err;
 768}
 769
 770int hinic_comm_pf_to_mgmt_init(struct hinic_hwdev *hwdev)
 771{
 772        int rc;
 773
 774        /* VF do not support send msg to mgmt directly */
 775        if (hinic_func_type(hwdev) == TYPE_VF)
 776                return 0;
 777
 778        rc = hinic_pf_to_mgmt_init(hwdev);
 779        if (rc)
 780                return rc;
 781
 782        hwdev->pf_to_mgmt->rx_aeq = &hwdev->aeqs->aeq[HINIC_MGMT_RSP_AEQN];
 783
 784        return 0;
 785}
 786
 787void hinic_comm_pf_to_mgmt_free(struct hinic_hwdev *hwdev)
 788{
 789        /* VF do not support send msg to mgmt directly */
 790        if (hinic_func_type(hwdev) == TYPE_VF)
 791                return;
 792
 793        hinic_pf_to_mgmt_free(hwdev);
 794}
 795
 796void hinic_dev_handle_aeq_event(struct hinic_hwdev *hwdev, void *param)
 797{
 798        struct hinic_eq *aeq = &hwdev->aeqs->aeq[0];
 799
 800        /* clear resend timer cnt register */
 801        hinic_misx_intr_clear_resend_bit(hwdev, aeq->eq_irq.msix_entry_idx,
 802                                         EQ_MSIX_RESEND_TIMER_CLEAR);
 803        (void)hinic_aeq_poll_msg(aeq, 0, param);
 804}
 805