drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c

   1 /*
   2  * This file is part of the Chelsio T4 PCI-E SR-IOV Virtual Function Ethernet
   3  * driver for Linux.
   4  *
   5  * Copyright (c) 2009-2010 Chelsio Communications, Inc. All rights reserved.
   6  *
   7  * This software is available to you under a choice of one of two
   8  * licenses.  You may choose to be licensed under the terms of the GNU
   9  * General Public License (GPL) Version 2, available from the file
  10  * COPYING in the main directory of this source tree, or the
  11  * OpenIB.org BSD license below:
  12  *
  13  *     Redistribution and use in source and binary forms, with or
  14  *     without modification, are permitted provided that the following
  15  *     conditions are met:
  16  *
  17  *      - Redistributions of source code must retain the above
  18  *        copyright notice, this list of conditions and the following
  19  *        disclaimer.
  20  *
  21  *      - Redistributions in binary form must reproduce the above
  22  *        copyright notice, this list of conditions and the following
  23  *        disclaimer in the documentation and/or other materials
  24  *        provided with the distribution.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  27  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  29  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  30  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  31  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  32  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  33  * SOFTWARE.
  34  */
  35
  36 #include <linux/pci.h>
  37
  38 #include "t4vf_common.h"
  39 #include "t4vf_defs.h"
  40
  41 #include "../cxgb4/t4_regs.h"
  42 #include "../cxgb4/t4_values.h"
  43 #include "../cxgb4/t4fw_api.h"
  44
  45 /*
  46  * Wait for the device to become ready (signified by our "who am I" register
  47  * returning a value other than all 1's).  Return an error if it doesn't
  48  * become ready ...
  49  */
  50 int t4vf_wait_dev_ready(struct adapter *adapter)
  51 {
  52         const u32 whoami = T4VF_PL_BASE_ADDR + PL_VF_WHOAMI;
  53         const u32 notready1 = 0xffffffff;
  54         const u32 notready2 = 0xeeeeeeee;
  55         u32 val;
  56
  57         val = t4_read_reg(adapter, whoami);
  58         if (val != notready1 && val != notready2)
  59                 return 0;
  60         msleep(500);
  61         val = t4_read_reg(adapter, whoami);
  62         if (val != notready1 && val != notready2)
  63                 return 0;
  64         else
  65                 return -EIO;
  66 }
  67
  68 /*
  69  * Get the reply to a mailbox command and store it in @rpl in big-endian order
  70  * (since the firmware data structures are specified in a big-endian layout).
  71  */
  72 static void get_mbox_rpl(struct adapter *adapter, __be64 *rpl, int size,
  73                          u32 mbox_data)
  74 {
  75         for ( ; size; size -= 8, mbox_data += 8)
  76                 *rpl++ = cpu_to_be64(t4_read_reg64(adapter, mbox_data));
  77 }
  78
  79 /**
  80  *      t4vf_record_mbox - record a Firmware Mailbox Command/Reply in the log
  81  *      @adapter: the adapter
  82  *      @cmd: the Firmware Mailbox Command or Reply
  83  *      @size: command length in bytes
  84  *      @access: the time (ms) needed to access the Firmware Mailbox
  85  *      @execute: the time (ms) the command spent being executed
  86  */
  87 static void t4vf_record_mbox(struct adapter *adapter, const __be64 *cmd,
  88                              int size, int access, int execute)
  89 {
  90         struct mbox_cmd_log *log = adapter->mbox_log;
  91         struct mbox_cmd *entry;
  92         int i;
  93
  94         entry = mbox_cmd_log_entry(log, log->cursor++);
  95         if (log->cursor == log->size)
  96                 log->cursor = 0;
  97
  98         for (i = 0; i < size / 8; i++)
  99                 entry->cmd[i] = be64_to_cpu(cmd[i]);
 100         while (i < MBOX_LEN / 8)
 101                 entry->cmd[i++] = 0;
 102         entry->timestamp = jiffies;
 103         entry->seqno = log->seqno++;
 104         entry->access = access;
 105         entry->execute = execute;
 106 }
 107
 108 /**
 109  *      t4vf_wr_mbox_core - send a command to FW through the mailbox
 110  *      @adapter: the adapter
 111  *      @cmd: the command to write
 112  *      @size: command length in bytes
 113  *      @rpl: where to optionally store the reply
 114  *      @sleep_ok: if true we may sleep while awaiting command completion
 115  *
 116  *      Sends the given command to FW through the mailbox and waits for the
 117  *      FW to execute the command.  If @rpl is not %NULL it is used to store
 118  *      the FW's reply to the command.  The command and its optional reply
 119  *      are of the same length.  FW can take up to 500 ms to respond.
 120  *      @sleep_ok determines whether we may sleep while awaiting the response.
 121  *      If sleeping is allowed we use progressive backoff otherwise we spin.
 122  *
 123  *      The return value is 0 on success or a negative errno on failure.  A
 124  *      failure can happen either because we are not able to execute the
 125  *      command or FW executes it but signals an error.  In the latter case
 126  *      the return value is the error code indicated by FW (negated).
 127  */
 128 int t4vf_wr_mbox_core(struct adapter *adapter, const void *cmd, int size,
 129                       void *rpl, bool sleep_ok)
 130 {
 131         static const int delay[] = {
 132                 1, 1, 3, 5, 10, 10, 20, 50, 100
 133         };
 134
 135         u16 access = 0, execute = 0;
 136         u32 v, mbox_data;
 137         int i, ms, delay_idx, ret;
 138         const __be64 *p;
 139         u32 mbox_ctl = T4VF_CIM_BASE_ADDR + CIM_VF_EXT_MAILBOX_CTRL;
 140         u32 cmd_op = FW_CMD_OP_G(be32_to_cpu(((struct fw_cmd_hdr *)cmd)->hi));
 141         __be64 cmd_rpl[MBOX_LEN / 8];
 142         struct mbox_list entry;
 143
 144         /* In T6, mailbox size is changed to 128 bytes to avoid
 145          * invalidating the entire prefetch buffer.
 146          */
 147         if (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5)
 148                 mbox_data = T4VF_MBDATA_BASE_ADDR;
 149         else
 150                 mbox_data = T6VF_MBDATA_BASE_ADDR;
 151
 152         /*
 153          * Commands must be multiples of 16 bytes in length and may not be
 154          * larger than the size of the Mailbox Data register array.
 155          */
 156         if ((size % 16) != 0 ||
 157             size > NUM_CIM_VF_MAILBOX_DATA_INSTANCES * 4)
 158                 return -EINVAL;
 159
 160         /* Queue ourselves onto the mailbox access list.  When our entry is at
 161          * the front of the list, we have rights to access the mailbox.  So we
 162          * wait [for a while] till we're at the front [or bail out with an
 163          * EBUSY] ...
 164          */
 165         spin_lock(&adapter->mbox_lock);
 166         list_add_tail(&entry.list, &adapter->mlist.list);
 167         spin_unlock(&adapter->mbox_lock);
 168
 169         delay_idx = 0;
 170         ms = delay[0];
 171
 172         for (i = 0; ; i += ms) {
 173                 /* If we've waited too long, return a busy indication.  This
 174                  * really ought to be based on our initial position in the
 175                  * mailbox access list but this is a start.  We very rearely
 176                  * contend on access to the mailbox ...
 177                  */
 178                 if (i > FW_CMD_MAX_TIMEOUT) {
 179                         spin_lock(&adapter->mbox_lock);
 180                         list_del(&entry.list);
 181                         spin_unlock(&adapter->mbox_lock);
 182                         ret = -EBUSY;
 183                         t4vf_record_mbox(adapter, cmd, size, access, ret);
 184                         return ret;
 185                 }
 186
 187                 /* If we're at the head, break out and start the mailbox
 188                  * protocol.
 189                  */
 190                 if (list_first_entry(&adapter->mlist.list, struct mbox_list,
 191                                      list) == &entry)
 192                         break;
 193
 194                 /* Delay for a bit before checking again ... */
 195                 if (sleep_ok) {
 196                         ms = delay[delay_idx];  /* last element may repeat */
 197                         if (delay_idx < ARRAY_SIZE(delay) - 1)
 198                                 delay_idx++;
 199                         msleep(ms);
 200                 } else {
 201                         mdelay(ms);
 202                 }
 203         }
 204
 205         /*
 206          * Loop trying to get ownership of the mailbox.  Return an error
 207          * if we can't gain ownership.
 208          */
 209         v = MBOWNER_G(t4_read_reg(adapter, mbox_ctl));
 210         for (i = 0; v == MBOX_OWNER_NONE && i < 3; i++)
 211                 v = MBOWNER_G(t4_read_reg(adapter, mbox_ctl));
 212         if (v != MBOX_OWNER_DRV) {
 213                 spin_lock(&adapter->mbox_lock);
 214                 list_del(&entry.list);
 215                 spin_unlock(&adapter->mbox_lock);
 216                 ret = (v == MBOX_OWNER_FW) ? -EBUSY : -ETIMEDOUT;
 217                 t4vf_record_mbox(adapter, cmd, size, access, ret);
 218                 return ret;
 219         }
 220
 221         /*
 222          * Write the command array into the Mailbox Data register array and
 223          * transfer ownership of the mailbox to the firmware.
 224          *
 225          * For the VFs, the Mailbox Data "registers" are actually backed by
 226          * T4's "MA" interface rather than PL Registers (as is the case for
 227          * the PFs).  Because these are in different coherency domains, the
 228          * write to the VF's PL-register-backed Mailbox Control can race in
 229          * front of the writes to the MA-backed VF Mailbox Data "registers".
 230          * So we need to do a read-back on at least one byte of the VF Mailbox
 231          * Data registers before doing the write to the VF Mailbox Control
 232          * register.
 233          */
 234         if (cmd_op != FW_VI_STATS_CMD)
 235                 t4vf_record_mbox(adapter, cmd, size, access, 0);
 236         for (i = 0, p = cmd; i < size; i += 8)
 237                 t4_write_reg64(adapter, mbox_data + i, be64_to_cpu(*p++));
 238         t4_read_reg(adapter, mbox_data);         /* flush write */
 239
 240         t4_write_reg(adapter, mbox_ctl,
 241                      MBMSGVALID_F | MBOWNER_V(MBOX_OWNER_FW));
 242         t4_read_reg(adapter, mbox_ctl);          /* flush write */
 243
 244         /*
 245          * Spin waiting for firmware to acknowledge processing our command.
 246          */
 247         delay_idx = 0;
 248         ms = delay[0];
 249
 250         for (i = 0; i < FW_CMD_MAX_TIMEOUT; i += ms) {
 251                 if (sleep_ok) {
 252                         ms = delay[delay_idx];
 253                         if (delay_idx < ARRAY_SIZE(delay) - 1)
 254                                 delay_idx++;
 255                         msleep(ms);
 256                 } else
 257                         mdelay(ms);
 258
 259                 /*
 260                  * If we're the owner, see if this is the reply we wanted.
 261                  */
 262                 v = t4_read_reg(adapter, mbox_ctl);
 263                 if (MBOWNER_G(v) == MBOX_OWNER_DRV) {
 264                         /*
 265                          * If the Message Valid bit isn't on, revoke ownership
 266                          * of the mailbox and continue waiting for our reply.
 267                          */
 268                         if ((v & MBMSGVALID_F) == 0) {
 269                                 t4_write_reg(adapter, mbox_ctl,
 270                                              MBOWNER_V(MBOX_OWNER_NONE));
 271                                 continue;
 272                         }
 273
 274                         /*
 275                          * We now have our reply.  Extract the command return
 276                          * value, copy the reply back to our caller's buffer
 277                          * (if specified) and revoke ownership of the mailbox.
 278                          * We return the (negated) firmware command return
 279                          * code (this depends on FW_SUCCESS == 0).
 280                          */
 281                         get_mbox_rpl(adapter, cmd_rpl, size, mbox_data);
 282
 283                         /* return value in low-order little-endian word */
 284                         v = be64_to_cpu(cmd_rpl[0]);
 285
 286                         if (rpl) {
 287                                 /* request bit in high-order BE word */
 288                                 WARN_ON((be32_to_cpu(*(const __be32 *)cmd)
 289                                          & FW_CMD_REQUEST_F) == 0);
 290                                 memcpy(rpl, cmd_rpl, size);
 291                                 WARN_ON((be32_to_cpu(*(__be32 *)rpl)
 292                                          & FW_CMD_REQUEST_F) != 0);
 293                         }
 294                         t4_write_reg(adapter, mbox_ctl,
 295                                      MBOWNER_V(MBOX_OWNER_NONE));
 296                         execute = i + ms;
 297                         if (cmd_op != FW_VI_STATS_CMD)
 298                                 t4vf_record_mbox(adapter, cmd_rpl, size, access,
 299                                                  execute);
 300                         spin_lock(&adapter->mbox_lock);
 301                         list_del(&entry.list);
 302                         spin_unlock(&adapter->mbox_lock);
 303                         return -FW_CMD_RETVAL_G(v);
 304                 }
 305         }
 306
 307         /* We timed out.  Return the error ... */
 308         ret = -ETIMEDOUT;
 309         t4vf_record_mbox(adapter, cmd, size, access, ret);
 310         spin_lock(&adapter->mbox_lock);
 311         list_del(&entry.list);
 312         spin_unlock(&adapter->mbox_lock);
 313         return ret;
 314 }
 315
 316 #define ADVERT_MASK (FW_PORT_CAP_SPEED_100M | FW_PORT_CAP_SPEED_1G |\
 317                      FW_PORT_CAP_SPEED_10G | FW_PORT_CAP_SPEED_40G | \
 318                      FW_PORT_CAP_SPEED_100G | FW_PORT_CAP_ANEG)
 319
 320 /**
 321  *      init_link_config - initialize a link's SW state
 322  *      @lc: structure holding the link state
 323  *      @caps: link capabilities
 324  *
 325  *      Initializes the SW state maintained for each link, including the link's
 326  *      capabilities and default speed/flow-control/autonegotiation settings.
 327  */
 328 static void init_link_config(struct link_config *lc, unsigned int caps)
 329 {
 330         lc->supported = caps;
 331         lc->lp_advertising = 0;
 332         lc->requested_speed = 0;
 333         lc->speed = 0;
 334         lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX;
 335         if (lc->supported & FW_PORT_CAP_ANEG) {
 336                 lc->advertising = lc->supported & ADVERT_MASK;
 337                 lc->autoneg = AUTONEG_ENABLE;
 338                 lc->requested_fc |= PAUSE_AUTONEG;
 339         } else {
 340                 lc->advertising = 0;
 341                 lc->autoneg = AUTONEG_DISABLE;
 342         }
 343 }
 344
 345 /**
 346  *      t4vf_port_init - initialize port hardware/software state
 347  *      @adapter: the adapter
 348  *      @pidx: the adapter port index
 349  */
 350 int t4vf_port_init(struct adapter *adapter, int pidx)
 351 {
 352         struct port_info *pi = adap2pinfo(adapter, pidx);
 353         struct fw_vi_cmd vi_cmd, vi_rpl;
 354         struct fw_port_cmd port_cmd, port_rpl;
 355         int v;
 356
 357         /*
 358          * Execute a VI Read command to get our Virtual Interface information
 359          * like MAC address, etc.
 360          */
 361         memset(&vi_cmd, 0, sizeof(vi_cmd));
 362         vi_cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) |
 363                                        FW_CMD_REQUEST_F |
 364                                        FW_CMD_READ_F);
 365         vi_cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(vi_cmd));
 366         vi_cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID_V(pi->viid));
 367         v = t4vf_wr_mbox(adapter, &vi_cmd, sizeof(vi_cmd), &vi_rpl);
 368         if (v)
 369                 return v;
 370
 371         BUG_ON(pi->port_id != FW_VI_CMD_PORTID_G(vi_rpl.portid_pkd));
 372         pi->rss_size = FW_VI_CMD_RSSSIZE_G(be16_to_cpu(vi_rpl.rsssize_pkd));
 373         t4_os_set_hw_addr(adapter, pidx, vi_rpl.mac);
 374
 375         /*
 376          * If we don't have read access to our port information, we're done
 377          * now.  Otherwise, execute a PORT Read command to get it ...
 378          */
 379         if (!(adapter->params.vfres.r_caps & FW_CMD_CAP_PORT))
 380                 return 0;
 381
 382         memset(&port_cmd, 0, sizeof(port_cmd));
 383         port_cmd.op_to_portid = cpu_to_be32(FW_CMD_OP_V(FW_PORT_CMD) |
 384                                             FW_CMD_REQUEST_F |
 385                                             FW_CMD_READ_F |
 386                                             FW_PORT_CMD_PORTID_V(pi->port_id));
 387         port_cmd.action_to_len16 =
 388                 cpu_to_be32(FW_PORT_CMD_ACTION_V(FW_PORT_ACTION_GET_PORT_INFO) |
 389                             FW_LEN16(port_cmd));
 390         v = t4vf_wr_mbox(adapter, &port_cmd, sizeof(port_cmd), &port_rpl);
 391         if (v)
 392                 return v;
 393
 394         v = be32_to_cpu(port_rpl.u.info.lstatus_to_modtype);
 395         pi->mdio_addr = (v & FW_PORT_CMD_MDIOCAP_F) ?
 396                         FW_PORT_CMD_MDIOADDR_G(v) : -1;
 397         pi->port_type = FW_PORT_CMD_PTYPE_G(v);
 398         pi->mod_type = FW_PORT_MOD_TYPE_NA;
 399
 400         init_link_config(&pi->link_cfg, be16_to_cpu(port_rpl.u.info.pcap));
 401
 402         return 0;
 403 }
 404
 405 /**
 406  *      t4vf_fw_reset - issue a reset to FW
 407  *      @adapter: the adapter
 408  *
 409  *      Issues a reset command to FW.  For a Physical Function this would
 410  *      result in the Firmware resetting all of its state.  For a Virtual
 411  *      Function this just resets the state associated with the VF.
 412  */
 413 int t4vf_fw_reset(struct adapter *adapter)
 414 {
 415         struct fw_reset_cmd cmd;
 416
 417         memset(&cmd, 0, sizeof(cmd));
 418         cmd.op_to_write = cpu_to_be32(FW_CMD_OP_V(FW_RESET_CMD) |
 419                                       FW_CMD_WRITE_F);
 420         cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
 421         return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
 422 }
 423
 424 /**
 425  *      t4vf_query_params - query FW or device parameters
 426  *      @adapter: the adapter
 427  *      @nparams: the number of parameters
 428  *      @params: the parameter names
 429  *      @vals: the parameter values
 430  *
 431  *      Reads the values of firmware or device parameters.  Up to 7 parameters
 432  *      can be queried at once.
 433  */
 434 static int t4vf_query_params(struct adapter *adapter, unsigned int nparams,
 435                              const u32 *params, u32 *vals)
 436 {
 437         int i, ret;
 438         struct fw_params_cmd cmd, rpl;
 439         struct fw_params_param *p;
 440         size_t len16;
 441
 442         if (nparams > 7)
 443                 return -EINVAL;
 444
 445         memset(&cmd, 0, sizeof(cmd));
 446         cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PARAMS_CMD) |
 447                                     FW_CMD_REQUEST_F |
 448                                     FW_CMD_READ_F);
 449         len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd,
 450                                       param[nparams].mnem), 16);
 451         cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
 452         for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++)
 453                 p->mnem = htonl(*params++);
 454
 455         ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
 456         if (ret == 0)
 457                 for (i = 0, p = &rpl.param[0]; i < nparams; i++, p++)
 458                         *vals++ = be32_to_cpu(p->val);
 459         return ret;
 460 }
 461
 462 /**
 463  *      t4vf_set_params - sets FW or device parameters
 464  *      @adapter: the adapter
 465  *      @nparams: the number of parameters
 466  *      @params: the parameter names
 467  *      @vals: the parameter values
 468  *
 469  *      Sets the values of firmware or device parameters.  Up to 7 parameters
 470  *      can be specified at once.
 471  */
 472 int t4vf_set_params(struct adapter *adapter, unsigned int nparams,
 473                     const u32 *params, const u32 *vals)
 474 {
 475         int i;
 476         struct fw_params_cmd cmd;
 477         struct fw_params_param *p;
 478         size_t len16;
 479
 480         if (nparams > 7)
 481                 return -EINVAL;
 482
 483         memset(&cmd, 0, sizeof(cmd));
 484         cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PARAMS_CMD) |
 485                                     FW_CMD_REQUEST_F |
 486                                     FW_CMD_WRITE_F);
 487         len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd,
 488                                       param[nparams]), 16);
 489         cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
 490         for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++) {
 491                 p->mnem = cpu_to_be32(*params++);
 492                 p->val = cpu_to_be32(*vals++);
 493         }
 494
 495         return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
 496 }
 497
 498 /**
 499  *      t4vf_fl_pkt_align - return the fl packet alignment
 500  *      @adapter: the adapter
 501  *
 502  *      T4 has a single field to specify the packing and padding boundary.
 503  *      T5 onwards has separate fields for this and hence the alignment for
 504  *      next packet offset is maximum of these two.  And T6 changes the
 505  *      Ingress Padding Boundary Shift, so it's all a mess and it's best
 506  *      if we put this in low-level Common Code ...
 507  *
 508  */
 509 int t4vf_fl_pkt_align(struct adapter *adapter)
 510 {
 511         u32 sge_control, sge_control2;
 512         unsigned int ingpadboundary, ingpackboundary, fl_align, ingpad_shift;
 513
 514         sge_control = adapter->params.sge.sge_control;
 515
 516         /* T4 uses a single control field to specify both the PCIe Padding and
 517          * Packing Boundary.  T5 introduced the ability to specify these
 518          * separately.  The actual Ingress Packet Data alignment boundary
 519          * within Packed Buffer Mode is the maximum of these two
 520          * specifications.  (Note that it makes no real practical sense to
 521          * have the Pading Boudary be larger than the Packing Boundary but you
 522          * could set the chip up that way and, in fact, legacy T4 code would
 523          * end doing this because it would initialize the Padding Boundary and
 524          * leave the Packing Boundary initialized to 0 (16 bytes).)
 525          * Padding Boundary values in T6 starts from 8B,
 526          * where as it is 32B for T4 and T5.
 527          */
 528         if (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5)
 529                 ingpad_shift = INGPADBOUNDARY_SHIFT_X;
 530         else
 531                 ingpad_shift = T6_INGPADBOUNDARY_SHIFT_X;
 532
 533         ingpadboundary = 1 << (INGPADBOUNDARY_G(sge_control) + ingpad_shift);
 534
 535         fl_align = ingpadboundary;
 536         if (!is_t4(adapter->params.chip)) {
 537                 /* T5 has a different interpretation of one of the PCIe Packing
 538                  * Boundary values.
 539                  */
 540                 sge_control2 = adapter->params.sge.sge_control2;
 541                 ingpackboundary = INGPACKBOUNDARY_G(sge_control2);
 542                 if (ingpackboundary == INGPACKBOUNDARY_16B_X)
 543                         ingpackboundary = 16;
 544                 else
 545                         ingpackboundary = 1 << (ingpackboundary +
 546                                                 INGPACKBOUNDARY_SHIFT_X);
 547
 548                 fl_align = max(ingpadboundary, ingpackboundary);
 549         }
 550         return fl_align;
 551 }
 552
 553 /**
 554  *      t4vf_bar2_sge_qregs - return BAR2 SGE Queue register information
 555  *      @adapter: the adapter
 556  *      @qid: the Queue ID
 557  *      @qtype: the Ingress or Egress type for @qid
 558  *      @pbar2_qoffset: BAR2 Queue Offset
 559  *      @pbar2_qid: BAR2 Queue ID or 0 for Queue ID inferred SGE Queues
 560  *
 561  *      Returns the BAR2 SGE Queue Registers information associated with the
 562  *      indicated Absolute Queue ID.  These are passed back in return value
 563  *      pointers.  @qtype should be T4_BAR2_QTYPE_EGRESS for Egress Queue
 564  *      and T4_BAR2_QTYPE_INGRESS for Ingress Queues.
 565  *
 566  *      This may return an error which indicates that BAR2 SGE Queue
 567  *      registers aren't available.  If an error is not returned, then the
 568  *      following values are returned:
 569  *
 570  *        *@pbar2_qoffset: the BAR2 Offset of the @qid Registers
 571  *        *@pbar2_qid: the BAR2 SGE Queue ID or 0 of @qid
 572  *
 573  *      If the returned BAR2 Queue ID is 0, then BAR2 SGE registers which
 574  *      require the "Inferred Queue ID" ability may be used.  E.g. the
 575  *      Write Combining Doorbell Buffer. If the BAR2 Queue ID is not 0,
 576  *      then these "Inferred Queue ID" register may not be used.
 577  */
 578 int t4vf_bar2_sge_qregs(struct adapter *adapter,
 579                         unsigned int qid,
 580                         enum t4_bar2_qtype qtype,
 581                         u64 *pbar2_qoffset,
 582                         unsigned int *pbar2_qid)
 583 {
 584         unsigned int page_shift, page_size, qpp_shift, qpp_mask;
 585         u64 bar2_page_offset, bar2_qoffset;
 586         unsigned int bar2_qid, bar2_qid_offset, bar2_qinferred;
 587
 588         /* T4 doesn't support BAR2 SGE Queue registers.
 589          */
 590         if (is_t4(adapter->params.chip))
 591                 return -EINVAL;
 592
 593         /* Get our SGE Page Size parameters.
 594          */
 595         page_shift = adapter->params.sge.sge_vf_hps + 10;
 596         page_size = 1 << page_shift;
 597
 598         /* Get the right Queues per Page parameters for our Queue.
 599          */
 600         qpp_shift = (qtype == T4_BAR2_QTYPE_EGRESS
 601                      ? adapter->params.sge.sge_vf_eq_qpp
 602                      : adapter->params.sge.sge_vf_iq_qpp);
 603         qpp_mask = (1 << qpp_shift) - 1;
 604
 605         /* Calculate the basics of the BAR2 SGE Queue register area:
 606          *  o The BAR2 page the Queue registers will be in.
 607          *  o The BAR2 Queue ID.
 608          *  o The BAR2 Queue ID Offset into the BAR2 page.
 609          */
 610         bar2_page_offset = ((u64)(qid >> qpp_shift) << page_shift);
 611         bar2_qid = qid & qpp_mask;
 612         bar2_qid_offset = bar2_qid * SGE_UDB_SIZE;
 613
 614         /* If the BAR2 Queue ID Offset is less than the Page Size, then the
 615          * hardware will infer the Absolute Queue ID simply from the writes to
 616          * the BAR2 Queue ID Offset within the BAR2 Page (and we need to use a
 617          * BAR2 Queue ID of 0 for those writes).  Otherwise, we'll simply
 618          * write to the first BAR2 SGE Queue Area within the BAR2 Page with
 619          * the BAR2 Queue ID and the hardware will infer the Absolute Queue ID
 620          * from the BAR2 Page and BAR2 Queue ID.
 621          *
 622          * One important censequence of this is that some BAR2 SGE registers
 623          * have a "Queue ID" field and we can write the BAR2 SGE Queue ID
 624          * there.  But other registers synthesize the SGE Queue ID purely
 625          * from the writes to the registers -- the Write Combined Doorbell
 626          * Buffer is a good example.  These BAR2 SGE Registers are only
 627          * available for those BAR2 SGE Register areas where the SGE Absolute
 628          * Queue ID can be inferred from simple writes.
 629          */
 630         bar2_qoffset = bar2_page_offset;
 631         bar2_qinferred = (bar2_qid_offset < page_size);
 632         if (bar2_qinferred) {
 633                 bar2_qoffset += bar2_qid_offset;
 634                 bar2_qid = 0;
 635         }
 636
 637         *pbar2_qoffset = bar2_qoffset;
 638         *pbar2_qid = bar2_qid;
 639         return 0;
 640 }
 641
 642 unsigned int t4vf_get_pf_from_vf(struct adapter *adapter)
 643 {
 644         u32 whoami;
 645
 646         whoami = t4_read_reg(adapter, T4VF_PL_BASE_ADDR + PL_VF_WHOAMI_A);
 647         return (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5 ?
 648                         SOURCEPF_G(whoami) : T6_SOURCEPF_G(whoami));
 649 }
 650
 651 /**
 652  *      t4vf_get_sge_params - retrieve adapter Scatter gather Engine parameters
 653  *      @adapter: the adapter
 654  *
 655  *      Retrieves various core SGE parameters in the form of hardware SGE
 656  *      register values.  The caller is responsible for decoding these as
 657  *      needed.  The SGE parameters are stored in @adapter->params.sge.
 658  */
 659 int t4vf_get_sge_params(struct adapter *adapter)
 660 {
 661         struct sge_params *sge_params = &adapter->params.sge;
 662         u32 params[7], vals[7];
 663         int v;
 664
 665         params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
 666                      FW_PARAMS_PARAM_XYZ_V(SGE_CONTROL_A));
 667         params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
 668                      FW_PARAMS_PARAM_XYZ_V(SGE_HOST_PAGE_SIZE_A));
 669         params[2] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
 670                      FW_PARAMS_PARAM_XYZ_V(SGE_FL_BUFFER_SIZE0_A));
 671         params[3] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
 672                      FW_PARAMS_PARAM_XYZ_V(SGE_FL_BUFFER_SIZE1_A));
 673         params[4] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
 674                      FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_0_AND_1_A));
 675         params[5] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
 676                      FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_2_AND_3_A));
 677         params[6] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
 678                      FW_PARAMS_PARAM_XYZ_V(SGE_TIMER_VALUE_4_AND_5_A));
 679         v = t4vf_query_params(adapter, 7, params, vals);
 680         if (v)
 681                 return v;
 682         sge_params->sge_control = vals[0];
 683         sge_params->sge_host_page_size = vals[1];
 684         sge_params->sge_fl_buffer_size[0] = vals[2];
 685         sge_params->sge_fl_buffer_size[1] = vals[3];
 686         sge_params->sge_timer_value_0_and_1 = vals[4];
 687         sge_params->sge_timer_value_2_and_3 = vals[5];
 688         sge_params->sge_timer_value_4_and_5 = vals[6];
 689
 690         /* T4 uses a single control field to specify both the PCIe Padding and
 691          * Packing Boundary.  T5 introduced the ability to specify these
 692          * separately with the Padding Boundary in SGE_CONTROL and and Packing
 693          * Boundary in SGE_CONTROL2.  So for T5 and later we need to grab
 694          * SGE_CONTROL in order to determine how ingress packet data will be
 695          * laid out in Packed Buffer Mode.  Unfortunately, older versions of
 696          * the firmware won't let us retrieve SGE_CONTROL2 so if we get a
 697          * failure grabbing it we throw an error since we can't figure out the
 698          * right value.
 699          */
 700         if (!is_t4(adapter->params.chip)) {
 701                 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
 702                              FW_PARAMS_PARAM_XYZ_V(SGE_CONTROL2_A));
 703                 v = t4vf_query_params(adapter, 1, params, vals);
 704                 if (v != FW_SUCCESS) {
 705                         dev_err(adapter->pdev_dev,
 706                                 "Unable to get SGE Control2; "
 707                                 "probably old firmware.\n");
 708                         return v;
 709                 }
 710                 sge_params->sge_control2 = vals[0];
 711         }
 712
 713         params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
 714                      FW_PARAMS_PARAM_XYZ_V(SGE_INGRESS_RX_THRESHOLD_A));
 715         params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
 716                      FW_PARAMS_PARAM_XYZ_V(SGE_CONM_CTRL_A));
 717         v = t4vf_query_params(adapter, 2, params, vals);
 718         if (v)
 719                 return v;
 720         sge_params->sge_ingress_rx_threshold = vals[0];
 721         sge_params->sge_congestion_control = vals[1];
 722
 723         /* For T5 and later we want to use the new BAR2 Doorbells.
 724          * Unfortunately, older firmware didn't allow the this register to be
 725          * read.
 726          */
 727         if (!is_t4(adapter->params.chip)) {
 728                 unsigned int pf, s_hps, s_qpp;
 729
 730                 params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
 731                              FW_PARAMS_PARAM_XYZ_V(
 732                                      SGE_EGRESS_QUEUES_PER_PAGE_VF_A));
 733                 params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_REG) |
 734                              FW_PARAMS_PARAM_XYZ_V(
 735                                      SGE_INGRESS_QUEUES_PER_PAGE_VF_A));
 736                 v = t4vf_query_params(adapter, 2, params, vals);
 737                 if (v != FW_SUCCESS) {
 738                         dev_warn(adapter->pdev_dev,
 739                                  "Unable to get VF SGE Queues/Page; "
 740                                  "probably old firmware.\n");
 741                         return v;
 742                 }
 743                 sge_params->sge_egress_queues_per_page = vals[0];
 744                 sge_params->sge_ingress_queues_per_page = vals[1];
 745
 746                 /* We need the Queues/Page for our VF.  This is based on the
 747                  * PF from which we're instantiated and is indexed in the
 748                  * register we just read. Do it once here so other code in
 749                  * the driver can just use it.
 750                  */
 751                 pf = t4vf_get_pf_from_vf(adapter);
 752                 s_hps = (HOSTPAGESIZEPF0_S +
 753                          (HOSTPAGESIZEPF1_S - HOSTPAGESIZEPF0_S) * pf);
 754                 sge_params->sge_vf_hps =
 755                         ((sge_params->sge_host_page_size >> s_hps)
 756                          & HOSTPAGESIZEPF0_M);
 757
 758                 s_qpp = (QUEUESPERPAGEPF0_S +
 759                          (QUEUESPERPAGEPF1_S - QUEUESPERPAGEPF0_S) * pf);
 760                 sge_params->sge_vf_eq_qpp =
 761                         ((sge_params->sge_egress_queues_per_page >> s_qpp)
 762                          & QUEUESPERPAGEPF0_M);
 763                 sge_params->sge_vf_iq_qpp =
 764                         ((sge_params->sge_ingress_queues_per_page >> s_qpp)
 765                          & QUEUESPERPAGEPF0_M);
 766         }
 767
 768         return 0;
 769 }
 770
 771 /**
 772  *      t4vf_get_vpd_params - retrieve device VPD paremeters
 773  *      @adapter: the adapter
 774  *
 775  *      Retrives various device Vital Product Data parameters.  The parameters
 776  *      are stored in @adapter->params.vpd.
 777  */
 778 int t4vf_get_vpd_params(struct adapter *adapter)
 779 {
 780         struct vpd_params *vpd_params = &adapter->params.vpd;
 781         u32 params[7], vals[7];
 782         int v;
 783
 784         params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
 785                      FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_CCLK));
 786         v = t4vf_query_params(adapter, 1, params, vals);
 787         if (v)
 788                 return v;
 789         vpd_params->cclk = vals[0];
 790
 791         return 0;
 792 }
 793
 794 /**
 795  *      t4vf_get_dev_params - retrieve device paremeters
 796  *      @adapter: the adapter
 797  *
 798  *      Retrives various device parameters.  The parameters are stored in
 799  *      @adapter->params.dev.
 800  */
 801 int t4vf_get_dev_params(struct adapter *adapter)
 802 {
 803         struct dev_params *dev_params = &adapter->params.dev;
 804         u32 params[7], vals[7];
 805         int v;
 806
 807         params[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
 808                      FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_FWREV));
 809         params[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
 810                      FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_TPREV));
 811         v = t4vf_query_params(adapter, 2, params, vals);
 812         if (v)
 813                 return v;
 814         dev_params->fwrev = vals[0];
 815         dev_params->tprev = vals[1];
 816
 817         return 0;
 818 }
 819
 820 /**
 821  *      t4vf_get_rss_glb_config - retrieve adapter RSS Global Configuration
 822  *      @adapter: the adapter
 823  *
 824  *      Retrieves global RSS mode and parameters with which we have to live
 825  *      and stores them in the @adapter's RSS parameters.
 826  */
 827 int t4vf_get_rss_glb_config(struct adapter *adapter)
 828 {
 829         struct rss_params *rss = &adapter->params.rss;
 830         struct fw_rss_glb_config_cmd cmd, rpl;
 831         int v;
 832
 833         /*
 834          * Execute an RSS Global Configuration read command to retrieve
 835          * our RSS configuration.
 836          */
 837         memset(&cmd, 0, sizeof(cmd));
 838         cmd.op_to_write = cpu_to_be32(FW_CMD_OP_V(FW_RSS_GLB_CONFIG_CMD) |
 839                                       FW_CMD_REQUEST_F |
 840                                       FW_CMD_READ_F);
 841         cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
 842         v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
 843         if (v)
 844                 return v;
 845
 846         /*
 847          * Transate the big-endian RSS Global Configuration into our
 848          * cpu-endian format based on the RSS mode.  We also do first level
 849          * filtering at this point to weed out modes which don't support
 850          * VF Drivers ...
 851          */
 852         rss->mode = FW_RSS_GLB_CONFIG_CMD_MODE_G(
 853                         be32_to_cpu(rpl.u.manual.mode_pkd));
 854         switch (rss->mode) {
 855         case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
 856                 u32 word = be32_to_cpu(
 857                                 rpl.u.basicvirtual.synmapen_to_hashtoeplitz);
 858
 859                 rss->u.basicvirtual.synmapen =
 860                         ((word & FW_RSS_GLB_CONFIG_CMD_SYNMAPEN_F) != 0);
 861                 rss->u.basicvirtual.syn4tupenipv6 =
 862                         ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6_F) != 0);
 863                 rss->u.basicvirtual.syn2tupenipv6 =
 864                         ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6_F) != 0);
 865                 rss->u.basicvirtual.syn4tupenipv4 =
 866                         ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4_F) != 0);
 867                 rss->u.basicvirtual.syn2tupenipv4 =
 868                         ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4_F) != 0);
 869
 870                 rss->u.basicvirtual.ofdmapen =
 871                         ((word & FW_RSS_GLB_CONFIG_CMD_OFDMAPEN_F) != 0);
 872
 873                 rss->u.basicvirtual.tnlmapen =
 874                         ((word & FW_RSS_GLB_CONFIG_CMD_TNLMAPEN_F) != 0);
 875                 rss->u.basicvirtual.tnlalllookup =
 876                         ((word  & FW_RSS_GLB_CONFIG_CMD_TNLALLLKP_F) != 0);
 877
 878                 rss->u.basicvirtual.hashtoeplitz =
 879                         ((word & FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ_F) != 0);
 880
 881                 /* we need at least Tunnel Map Enable to be set */
 882                 if (!rss->u.basicvirtual.tnlmapen)
 883                         return -EINVAL;
 884                 break;
 885         }
 886
 887         default:
 888                 /* all unknown/unsupported RSS modes result in an error */
 889                 return -EINVAL;
 890         }
 891
 892         return 0;
 893 }
 894
 895 /**
 896  *      t4vf_get_vfres - retrieve VF resource limits
 897  *      @adapter: the adapter
 898  *
 899  *      Retrieves configured resource limits and capabilities for a virtual
 900  *      function.  The results are stored in @adapter->vfres.
 901  */
 902 int t4vf_get_vfres(struct adapter *adapter)
 903 {
 904         struct vf_resources *vfres = &adapter->params.vfres;
 905         struct fw_pfvf_cmd cmd, rpl;
 906         int v;
 907         u32 word;
 908
 909         /*
 910          * Execute PFVF Read command to get VF resource limits; bail out early
 911          * with error on command failure.
 912          */
 913         memset(&cmd, 0, sizeof(cmd));
 914         cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_PFVF_CMD) |
 915                                     FW_CMD_REQUEST_F |
 916                                     FW_CMD_READ_F);
 917         cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
 918         v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
 919         if (v)
 920                 return v;
 921
 922         /*
 923          * Extract VF resource limits and return success.
 924          */
 925         word = be32_to_cpu(rpl.niqflint_niq);
 926         vfres->niqflint = FW_PFVF_CMD_NIQFLINT_G(word);
 927         vfres->niq = FW_PFVF_CMD_NIQ_G(word);
 928
 929         word = be32_to_cpu(rpl.type_to_neq);
 930         vfres->neq = FW_PFVF_CMD_NEQ_G(word);
 931         vfres->pmask = FW_PFVF_CMD_PMASK_G(word);
 932
 933         word = be32_to_cpu(rpl.tc_to_nexactf);
 934         vfres->tc = FW_PFVF_CMD_TC_G(word);
 935         vfres->nvi = FW_PFVF_CMD_NVI_G(word);
 936         vfres->nexactf = FW_PFVF_CMD_NEXACTF_G(word);
 937
 938         word = be32_to_cpu(rpl.r_caps_to_nethctrl);
 939         vfres->r_caps = FW_PFVF_CMD_R_CAPS_G(word);
 940         vfres->wx_caps = FW_PFVF_CMD_WX_CAPS_G(word);
 941         vfres->nethctrl = FW_PFVF_CMD_NETHCTRL_G(word);
 942
 943         return 0;
 944 }
 945
 946 /**
 947  *      t4vf_read_rss_vi_config - read a VI's RSS configuration
 948  *      @adapter: the adapter
 949  *      @viid: Virtual Interface ID
 950  *      @config: pointer to host-native VI RSS Configuration buffer
 951  *
 952  *      Reads the Virtual Interface's RSS configuration information and
 953  *      translates it into CPU-native format.
 954  */
 955 int t4vf_read_rss_vi_config(struct adapter *adapter, unsigned int viid,
 956                             union rss_vi_config *config)
 957 {
 958         struct fw_rss_vi_config_cmd cmd, rpl;
 959         int v;
 960
 961         memset(&cmd, 0, sizeof(cmd));
 962         cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_VI_CONFIG_CMD) |
 963                                      FW_CMD_REQUEST_F |
 964                                      FW_CMD_READ_F |
 965                                      FW_RSS_VI_CONFIG_CMD_VIID(viid));
 966         cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
 967         v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
 968         if (v)
 969                 return v;
 970
 971         switch (adapter->params.rss.mode) {
 972         case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
 973                 u32 word = be32_to_cpu(rpl.u.basicvirtual.defaultq_to_udpen);
 974
 975                 config->basicvirtual.ip6fourtupen =
 976                         ((word & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F) != 0);
 977                 config->basicvirtual.ip6twotupen =
 978                         ((word & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F) != 0);
 979                 config->basicvirtual.ip4fourtupen =
 980                         ((word & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F) != 0);
 981                 config->basicvirtual.ip4twotupen =
 982                         ((word & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F) != 0);
 983                 config->basicvirtual.udpen =
 984                         ((word & FW_RSS_VI_CONFIG_CMD_UDPEN_F) != 0);
 985                 config->basicvirtual.defaultq =
 986                         FW_RSS_VI_CONFIG_CMD_DEFAULTQ_G(word);
 987                 break;
 988         }
 989
 990         default:
 991                 return -EINVAL;
 992         }
 993
 994         return 0;
 995 }
 996
 997 /**
 998  *      t4vf_write_rss_vi_config - write a VI's RSS configuration
 999  *      @adapter: the adapter
1000  *      @viid: Virtual Interface ID
1001  *      @config: pointer to host-native VI RSS Configuration buffer
1002  *
1003  *      Write the Virtual Interface's RSS configuration information
1004  *      (translating it into firmware-native format before writing).
1005  */
1006 int t4vf_write_rss_vi_config(struct adapter *adapter, unsigned int viid,
1007                              union rss_vi_config *config)
1008 {
1009         struct fw_rss_vi_config_cmd cmd, rpl;
1010
1011         memset(&cmd, 0, sizeof(cmd));
1012         cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_VI_CONFIG_CMD) |
1013                                      FW_CMD_REQUEST_F |
1014                                      FW_CMD_WRITE_F |
1015                                      FW_RSS_VI_CONFIG_CMD_VIID(viid));
1016         cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
1017         switch (adapter->params.rss.mode) {
1018         case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
1019                 u32 word = 0;
1020
1021                 if (config->basicvirtual.ip6fourtupen)
1022                         word |= FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F;
1023                 if (config->basicvirtual.ip6twotupen)
1024                         word |= FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F;
1025                 if (config->basicvirtual.ip4fourtupen)
1026                         word |= FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F;
1027                 if (config->basicvirtual.ip4twotupen)
1028                         word |= FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F;
1029                 if (config->basicvirtual.udpen)
1030                         word |= FW_RSS_VI_CONFIG_CMD_UDPEN_F;
1031                 word |= FW_RSS_VI_CONFIG_CMD_DEFAULTQ_V(
1032                                 config->basicvirtual.defaultq);
1033                 cmd.u.basicvirtual.defaultq_to_udpen = cpu_to_be32(word);
1034                 break;
1035         }
1036
1037         default:
1038                 return -EINVAL;
1039         }
1040
1041         return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
1042 }
1043
1044 /**
1045  *      t4vf_config_rss_range - configure a portion of the RSS mapping table
1046  *      @adapter: the adapter
1047  *      @viid: Virtual Interface of RSS Table Slice
1048  *      @start: starting entry in the table to write
1049  *      @n: how many table entries to write
1050  *      @rspq: values for the "Response Queue" (Ingress Queue) lookup table
1051  *      @nrspq: number of values in @rspq
1052  *
1053  *      Programs the selected part of the VI's RSS mapping table with the
1054  *      provided values.  If @nrspq < @n the supplied values are used repeatedly
1055  *      until the full table range is populated.
1056  *
1057  *      The caller must ensure the values in @rspq are in the range 0..1023.
1058  */
1059 int t4vf_config_rss_range(struct adapter *adapter, unsigned int viid,
1060                           int start, int n, const u16 *rspq, int nrspq)
1061 {
1062         const u16 *rsp = rspq;
1063         const u16 *rsp_end = rspq+nrspq;
1064         struct fw_rss_ind_tbl_cmd cmd;
1065
1066         /*
1067          * Initialize firmware command template to write the RSS table.
1068          */
1069         memset(&cmd, 0, sizeof(cmd));
1070         cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_IND_TBL_CMD) |
1071                                      FW_CMD_REQUEST_F |
1072                                      FW_CMD_WRITE_F |
1073                                      FW_RSS_IND_TBL_CMD_VIID_V(viid));
1074         cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
1075
1076         /*
1077          * Each firmware RSS command can accommodate up to 32 RSS Ingress
1078          * Queue Identifiers.  These Ingress Queue IDs are packed three to
1079          * a 32-bit word as 10-bit values with the upper remaining 2 bits
1080          * reserved.
1081          */
1082         while (n > 0) {
1083                 __be32 *qp = &cmd.iq0_to_iq2;
1084                 int nq = min(n, 32);
1085                 int ret;
1086
1087                 /*
1088                  * Set up the firmware RSS command header to send the next
1089                  * "nq" Ingress Queue IDs to the firmware.
1090                  */
1091                 cmd.niqid = cpu_to_be16(nq);
1092                 cmd.startidx = cpu_to_be16(start);
1093
1094                 /*
1095                  * "nq" more done for the start of the next loop.
1096                  */
1097                 start += nq;
1098                 n -= nq;
1099
1100                 /*
1101                  * While there are still Ingress Queue IDs to stuff into the
1102                  * current firmware RSS command, retrieve them from the
1103                  * Ingress Queue ID array and insert them into the command.
1104                  */
1105                 while (nq > 0) {
1106                         /*
1107                          * Grab up to the next 3 Ingress Queue IDs (wrapping
1108                          * around the Ingress Queue ID array if necessary) and
1109                          * insert them into the firmware RSS command at the
1110                          * current 3-tuple position within the commad.
1111                          */
1112                         u16 qbuf[3];
1113                         u16 *qbp = qbuf;
1114                         int nqbuf = min(3, nq);
1115
1116                         nq -= nqbuf;
1117                         qbuf[0] = qbuf[1] = qbuf[2] = 0;
1118                         while (nqbuf) {
1119                                 nqbuf--;
1120                                 *qbp++ = *rsp++;
1121                                 if (rsp >= rsp_end)
1122                                         rsp = rspq;
1123                         }
1124                         *qp++ = cpu_to_be32(FW_RSS_IND_TBL_CMD_IQ0_V(qbuf[0]) |
1125                                             FW_RSS_IND_TBL_CMD_IQ1_V(qbuf[1]) |
1126                                             FW_RSS_IND_TBL_CMD_IQ2_V(qbuf[2]));
1127                 }
1128
1129                 /*
1130                  * Send this portion of the RRS table update to the firmware;
1131                  * bail out on any errors.
1132                  */
1133                 ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1134                 if (ret)
1135                         return ret;
1136         }
1137         return 0;
1138 }
1139
1140 /**
1141  *      t4vf_alloc_vi - allocate a virtual interface on a port
1142  *      @adapter: the adapter
1143  *      @port_id: physical port associated with the VI
1144  *
1145  *      Allocate a new Virtual Interface and bind it to the indicated
1146  *      physical port.  Return the new Virtual Interface Identifier on
1147  *      success, or a [negative] error number on failure.
1148  */
1149 int t4vf_alloc_vi(struct adapter *adapter, int port_id)
1150 {
1151         struct fw_vi_cmd cmd, rpl;
1152         int v;
1153
1154         /*
1155          * Execute a VI command to allocate Virtual Interface and return its
1156          * VIID.
1157          */
1158         memset(&cmd, 0, sizeof(cmd));
1159         cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) |
1160                                     FW_CMD_REQUEST_F |
1161                                     FW_CMD_WRITE_F |
1162                                     FW_CMD_EXEC_F);
1163         cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
1164                                          FW_VI_CMD_ALLOC_F);
1165         cmd.portid_pkd = FW_VI_CMD_PORTID_V(port_id);
1166         v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
1167         if (v)
1168                 return v;
1169
1170         return FW_VI_CMD_VIID_G(be16_to_cpu(rpl.type_viid));
1171 }
1172
1173 /**
1174  *      t4vf_free_vi -- free a virtual interface
1175  *      @adapter: the adapter
1176  *      @viid: the virtual interface identifier
1177  *
1178  *      Free a previously allocated Virtual Interface.  Return an error on
1179  *      failure.
1180  */
1181 int t4vf_free_vi(struct adapter *adapter, int viid)
1182 {
1183         struct fw_vi_cmd cmd;
1184
1185         /*
1186          * Execute a VI command to free the Virtual Interface.
1187          */
1188         memset(&cmd, 0, sizeof(cmd));
1189         cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_VI_CMD) |
1190                                     FW_CMD_REQUEST_F |
1191                                     FW_CMD_EXEC_F);
1192         cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
1193                                          FW_VI_CMD_FREE_F);
1194         cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID_V(viid));
1195         return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1196 }
1197
1198 /**
1199  *      t4vf_enable_vi - enable/disable a virtual interface
1200  *      @adapter: the adapter
1201  *      @viid: the Virtual Interface ID
1202  *      @rx_en: 1=enable Rx, 0=disable Rx
1203  *      @tx_en: 1=enable Tx, 0=disable Tx
1204  *
1205  *      Enables/disables a virtual interface.
1206  */
1207 int t4vf_enable_vi(struct adapter *adapter, unsigned int viid,
1208                    bool rx_en, bool tx_en)
1209 {
1210         struct fw_vi_enable_cmd cmd;
1211
1212         memset(&cmd, 0, sizeof(cmd));
1213         cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_ENABLE_CMD) |
1214                                      FW_CMD_REQUEST_F |
1215                                      FW_CMD_EXEC_F |
1216                                      FW_VI_ENABLE_CMD_VIID_V(viid));
1217         cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_IEN_V(rx_en) |
1218                                        FW_VI_ENABLE_CMD_EEN_V(tx_en) |
1219                                        FW_LEN16(cmd));
1220         return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1221 }
1222
1223 /**
1224  *      t4vf_identify_port - identify a VI's port by blinking its LED
1225  *      @adapter: the adapter
1226  *      @viid: the Virtual Interface ID
1227  *      @nblinks: how many times to blink LED at 2.5 Hz
1228  *
1229  *      Identifies a VI's port by blinking its LED.
1230  */
1231 int t4vf_identify_port(struct adapter *adapter, unsigned int viid,
1232                        unsigned int nblinks)
1233 {
1234         struct fw_vi_enable_cmd cmd;
1235
1236         memset(&cmd, 0, sizeof(cmd));
1237         cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_ENABLE_CMD) |
1238                                      FW_CMD_REQUEST_F |
1239                                      FW_CMD_EXEC_F |
1240                                      FW_VI_ENABLE_CMD_VIID_V(viid));
1241         cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_LED_F |
1242                                        FW_LEN16(cmd));
1243         cmd.blinkdur = cpu_to_be16(nblinks);
1244         return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1245 }
1246
1247 /**
1248  *      t4vf_set_rxmode - set Rx properties of a virtual interface
1249  *      @adapter: the adapter
1250  *      @viid: the VI id
1251  *      @mtu: the new MTU or -1 for no change
1252  *      @promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change
1253  *      @all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change
1254  *      @bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change
1255  *      @vlanex: 1 to enable hardware VLAN Tag extraction, 0 to disable it,
1256  *              -1 no change
1257  *
1258  *      Sets Rx properties of a virtual interface.
1259  */
1260 int t4vf_set_rxmode(struct adapter *adapter, unsigned int viid,
1261                     int mtu, int promisc, int all_multi, int bcast, int vlanex,
1262                     bool sleep_ok)
1263 {
1264         struct fw_vi_rxmode_cmd cmd;
1265
1266         /* convert to FW values */
1267         if (mtu < 0)
1268                 mtu = FW_VI_RXMODE_CMD_MTU_M;
1269         if (promisc < 0)
1270                 promisc = FW_VI_RXMODE_CMD_PROMISCEN_M;
1271         if (all_multi < 0)
1272                 all_multi = FW_VI_RXMODE_CMD_ALLMULTIEN_M;
1273         if (bcast < 0)
1274                 bcast = FW_VI_RXMODE_CMD_BROADCASTEN_M;
1275         if (vlanex < 0)
1276                 vlanex = FW_VI_RXMODE_CMD_VLANEXEN_M;
1277
1278         memset(&cmd, 0, sizeof(cmd));
1279         cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_RXMODE_CMD) |
1280                                      FW_CMD_REQUEST_F |
1281                                      FW_CMD_WRITE_F |
1282                                      FW_VI_RXMODE_CMD_VIID_V(viid));
1283         cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
1284         cmd.mtu_to_vlanexen =
1285                 cpu_to_be32(FW_VI_RXMODE_CMD_MTU_V(mtu) |
1286                             FW_VI_RXMODE_CMD_PROMISCEN_V(promisc) |
1287                             FW_VI_RXMODE_CMD_ALLMULTIEN_V(all_multi) |
1288                             FW_VI_RXMODE_CMD_BROADCASTEN_V(bcast) |
1289                             FW_VI_RXMODE_CMD_VLANEXEN_V(vlanex));
1290         return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok);
1291 }
1292
1293 /**
1294  *      t4vf_alloc_mac_filt - allocates exact-match filters for MAC addresses
1295  *      @adapter: the adapter
1296  *      @viid: the Virtual Interface Identifier
1297  *      @free: if true any existing filters for this VI id are first removed
1298  *      @naddr: the number of MAC addresses to allocate filters for (up to 7)
1299  *      @addr: the MAC address(es)
1300  *      @idx: where to store the index of each allocated filter
1301  *      @hash: pointer to hash address filter bitmap
1302  *      @sleep_ok: call is allowed to sleep
1303  *
1304  *      Allocates an exact-match filter for each of the supplied addresses and
1305  *      sets it to the corresponding address.  If @idx is not %NULL it should
1306  *      have at least @naddr entries, each of which will be set to the index of
1307  *      the filter allocated for the corresponding MAC address.  If a filter
1308  *      could not be allocated for an address its index is set to 0xffff.
1309  *      If @hash is not %NULL addresses that fail to allocate an exact filter
1310  *      are hashed and update the hash filter bitmap pointed at by @hash.
1311  *
1312  *      Returns a negative error number or the number of filters allocated.
1313  */
1314 int t4vf_alloc_mac_filt(struct adapter *adapter, unsigned int viid, bool free,
1315                         unsigned int naddr, const u8 **addr, u16 *idx,
1316                         u64 *hash, bool sleep_ok)
1317 {
1318         int offset, ret = 0;
1319         unsigned nfilters = 0;
1320         unsigned int rem = naddr;
1321         struct fw_vi_mac_cmd cmd, rpl;
1322         unsigned int max_naddr = adapter->params.arch.mps_tcam_size;
1323
1324         if (naddr > max_naddr)
1325                 return -EINVAL;
1326
1327         for (offset = 0; offset < naddr; /**/) {
1328                 unsigned int fw_naddr = (rem < ARRAY_SIZE(cmd.u.exact)
1329                                          ? rem
1330                                          : ARRAY_SIZE(cmd.u.exact));
1331                 size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
1332                                                      u.exact[fw_naddr]), 16);
1333                 struct fw_vi_mac_exact *p;
1334                 int i;
1335
1336                 memset(&cmd, 0, sizeof(cmd));
1337                 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
1338                                              FW_CMD_REQUEST_F |
1339                                              FW_CMD_WRITE_F |
1340                                              (free ? FW_CMD_EXEC_F : 0) |
1341                                              FW_VI_MAC_CMD_VIID_V(viid));
1342                 cmd.freemacs_to_len16 =
1343                         cpu_to_be32(FW_VI_MAC_CMD_FREEMACS_V(free) |
1344                                     FW_CMD_LEN16_V(len16));
1345
1346                 for (i = 0, p = cmd.u.exact; i < fw_naddr; i++, p++) {
1347                         p->valid_to_idx = cpu_to_be16(
1348                                 FW_VI_MAC_CMD_VALID_F |
1349                                 FW_VI_MAC_CMD_IDX_V(FW_VI_MAC_ADD_MAC));
1350                         memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr));
1351                 }
1352
1353
1354                 ret = t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), &rpl,
1355                                         sleep_ok);
1356                 if (ret && ret != -ENOMEM)
1357                         break;
1358
1359                 for (i = 0, p = rpl.u.exact; i < fw_naddr; i++, p++) {
1360                         u16 index = FW_VI_MAC_CMD_IDX_G(
1361                                 be16_to_cpu(p->valid_to_idx));
1362
1363                         if (idx)
1364                                 idx[offset+i] =
1365                                         (index >= max_naddr
1366                                          ? 0xffff
1367                                          : index);
1368                         if (index < max_naddr)
1369                                 nfilters++;
1370                         else if (hash)
1371                                 *hash |= (1ULL << hash_mac_addr(addr[offset+i]));
1372                 }
1373
1374                 free = false;
1375                 offset += fw_naddr;
1376                 rem -= fw_naddr;
1377         }
1378
1379         /*
1380          * If there were no errors or we merely ran out of room in our MAC
1381          * address arena, return the number of filters actually written.
1382          */
1383         if (ret == 0 || ret == -ENOMEM)
1384                 ret = nfilters;
1385         return ret;
1386 }
1387
1388 /**
1389  *      t4vf_free_mac_filt - frees exact-match filters of given MAC addresses
1390  *      @adapter: the adapter
1391  *      @viid: the VI id
1392  *      @naddr: the number of MAC addresses to allocate filters for (up to 7)
1393  *      @addr: the MAC address(es)
1394  *      @sleep_ok: call is allowed to sleep
1395  *
1396  *      Frees the exact-match filter for each of the supplied addresses
1397  *
1398  *      Returns a negative error number or the number of filters freed.
1399  */
1400 int t4vf_free_mac_filt(struct adapter *adapter, unsigned int viid,
1401                        unsigned int naddr, const u8 **addr, bool sleep_ok)
1402 {
1403         int offset, ret = 0;
1404         struct fw_vi_mac_cmd cmd;
1405         unsigned int nfilters = 0;
1406         unsigned int max_naddr = adapter->params.arch.mps_tcam_size;
1407         unsigned int rem = naddr;
1408
1409         if (naddr > max_naddr)
1410                 return -EINVAL;
1411
1412         for (offset = 0; offset < (int)naddr ; /**/) {
1413                 unsigned int fw_naddr = (rem < ARRAY_SIZE(cmd.u.exact) ?
1414                                          rem : ARRAY_SIZE(cmd.u.exact));
1415                 size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
1416                                                      u.exact[fw_naddr]), 16);
1417                 struct fw_vi_mac_exact *p;
1418                 int i;
1419
1420                 memset(&cmd, 0, sizeof(cmd));
1421                 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
1422                                      FW_CMD_REQUEST_F |
1423                                      FW_CMD_WRITE_F |
1424                                      FW_CMD_EXEC_V(0) |
1425                                      FW_VI_MAC_CMD_VIID_V(viid));
1426                 cmd.freemacs_to_len16 =
1427                                 cpu_to_be32(FW_VI_MAC_CMD_FREEMACS_V(0) |
1428                                             FW_CMD_LEN16_V(len16));
1429
1430                 for (i = 0, p = cmd.u.exact; i < (int)fw_naddr; i++, p++) {
1431                         p->valid_to_idx = cpu_to_be16(
1432                                 FW_VI_MAC_CMD_VALID_F |
1433                                 FW_VI_MAC_CMD_IDX_V(FW_VI_MAC_MAC_BASED_FREE));
1434                         memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr));
1435                 }
1436
1437                 ret = t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), &cmd,
1438                                         sleep_ok);
1439                 if (ret)
1440                         break;
1441
1442                 for (i = 0, p = cmd.u.exact; i < fw_naddr; i++, p++) {
1443                         u16 index = FW_VI_MAC_CMD_IDX_G(
1444                                                 be16_to_cpu(p->valid_to_idx));
1445
1446                         if (index < max_naddr)
1447                                 nfilters++;
1448                 }
1449
1450                 offset += fw_naddr;
1451                 rem -= fw_naddr;
1452         }
1453
1454         if (ret == 0)
1455                 ret = nfilters;
1456         return ret;
1457 }
1458
1459 /**
1460  *      t4vf_change_mac - modifies the exact-match filter for a MAC address
1461  *      @adapter: the adapter
1462  *      @viid: the Virtual Interface ID
1463  *      @idx: index of existing filter for old value of MAC address, or -1
1464  *      @addr: the new MAC address value
1465  *      @persist: if idx < 0, the new MAC allocation should be persistent
1466  *
1467  *      Modifies an exact-match filter and sets it to the new MAC address.
1468  *      Note that in general it is not possible to modify the value of a given
1469  *      filter so the generic way to modify an address filter is to free the
1470  *      one being used by the old address value and allocate a new filter for
1471  *      the new address value.  @idx can be -1 if the address is a new
1472  *      addition.
1473  *
1474  *      Returns a negative error number or the index of the filter with the new
1475  *      MAC value.
1476  */
1477 int t4vf_change_mac(struct adapter *adapter, unsigned int viid,
1478                     int idx, const u8 *addr, bool persist)
1479 {
1480         int ret;
1481         struct fw_vi_mac_cmd cmd, rpl;
1482         struct fw_vi_mac_exact *p = &cmd.u.exact[0];
1483         size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
1484                                              u.exact[1]), 16);
1485         unsigned int max_mac_addr = adapter->params.arch.mps_tcam_size;
1486
1487         /*
1488          * If this is a new allocation, determine whether it should be
1489          * persistent (across a "freemacs" operation) or not.
1490          */
1491         if (idx < 0)
1492                 idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC;
1493
1494         memset(&cmd, 0, sizeof(cmd));
1495         cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
1496                                      FW_CMD_REQUEST_F |
1497                                      FW_CMD_WRITE_F |
1498                                      FW_VI_MAC_CMD_VIID_V(viid));
1499         cmd.freemacs_to_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
1500         p->valid_to_idx = cpu_to_be16(FW_VI_MAC_CMD_VALID_F |
1501                                       FW_VI_MAC_CMD_IDX_V(idx));
1502         memcpy(p->macaddr, addr, sizeof(p->macaddr));
1503
1504         ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
1505         if (ret == 0) {
1506                 p = &rpl.u.exact[0];
1507                 ret = FW_VI_MAC_CMD_IDX_G(be16_to_cpu(p->valid_to_idx));
1508                 if (ret >= max_mac_addr)
1509                         ret = -ENOMEM;
1510         }
1511         return ret;
1512 }
1513
1514 /**
1515  *      t4vf_set_addr_hash - program the MAC inexact-match hash filter
1516  *      @adapter: the adapter
1517  *      @viid: the Virtual Interface Identifier
1518  *      @ucast: whether the hash filter should also match unicast addresses
1519  *      @vec: the value to be written to the hash filter
1520  *      @sleep_ok: call is allowed to sleep
1521  *
1522  *      Sets the 64-bit inexact-match hash filter for a virtual interface.
1523  */
1524 int t4vf_set_addr_hash(struct adapter *adapter, unsigned int viid,
1525                        bool ucast, u64 vec, bool sleep_ok)
1526 {
1527         struct fw_vi_mac_cmd cmd;
1528         size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
1529                                              u.exact[0]), 16);
1530
1531         memset(&cmd, 0, sizeof(cmd));
1532         cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
1533                                      FW_CMD_REQUEST_F |
1534                                      FW_CMD_WRITE_F |
1535                                      FW_VI_ENABLE_CMD_VIID_V(viid));
1536         cmd.freemacs_to_len16 = cpu_to_be32(FW_VI_MAC_CMD_HASHVECEN_F |
1537                                             FW_VI_MAC_CMD_HASHUNIEN_V(ucast) |
1538                                             FW_CMD_LEN16_V(len16));
1539         cmd.u.hash.hashvec = cpu_to_be64(vec);
1540         return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok);
1541 }
1542
1543 /**
1544  *      t4vf_get_port_stats - collect "port" statistics
1545  *      @adapter: the adapter
1546  *      @pidx: the port index
1547  *      @s: the stats structure to fill
1548  *
1549  *      Collect statistics for the "port"'s Virtual Interface.
1550  */
1551 int t4vf_get_port_stats(struct adapter *adapter, int pidx,
1552                         struct t4vf_port_stats *s)
1553 {
1554         struct port_info *pi = adap2pinfo(adapter, pidx);
1555         struct fw_vi_stats_vf fwstats;
1556         unsigned int rem = VI_VF_NUM_STATS;
1557         __be64 *fwsp = (__be64 *)&fwstats;
1558
1559         /*
1560          * Grab the Virtual Interface statistics a chunk at a time via mailbox
1561          * commands.  We could use a Work Request and get all of them at once
1562          * but that's an asynchronous interface which is awkward to use.
1563          */
1564         while (rem) {
1565                 unsigned int ix = VI_VF_NUM_STATS - rem;
1566                 unsigned int nstats = min(6U, rem);
1567                 struct fw_vi_stats_cmd cmd, rpl;
1568                 size_t len = (offsetof(struct fw_vi_stats_cmd, u) +
1569                               sizeof(struct fw_vi_stats_ctl));
1570                 size_t len16 = DIV_ROUND_UP(len, 16);
1571                 int ret;
1572
1573                 memset(&cmd, 0, sizeof(cmd));
1574                 cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_STATS_CMD) |
1575                                              FW_VI_STATS_CMD_VIID_V(pi->viid) |
1576                                              FW_CMD_REQUEST_F |
1577                                              FW_CMD_READ_F);
1578                 cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16_V(len16));
1579                 cmd.u.ctl.nstats_ix =
1580                         cpu_to_be16(FW_VI_STATS_CMD_IX_V(ix) |
1581                                     FW_VI_STATS_CMD_NSTATS_V(nstats));
1582                 ret = t4vf_wr_mbox_ns(adapter, &cmd, len, &rpl);
1583                 if (ret)
1584                         return ret;
1585
1586                 memcpy(fwsp, &rpl.u.ctl.stat0, sizeof(__be64) * nstats);
1587
1588                 rem -= nstats;
1589                 fwsp += nstats;
1590         }
1591
1592         /*
1593          * Translate firmware statistics into host native statistics.
1594          */
1595         s->tx_bcast_bytes = be64_to_cpu(fwstats.tx_bcast_bytes);
1596         s->tx_bcast_frames = be64_to_cpu(fwstats.tx_bcast_frames);
1597         s->tx_mcast_bytes = be64_to_cpu(fwstats.tx_mcast_bytes);
1598         s->tx_mcast_frames = be64_to_cpu(fwstats.tx_mcast_frames);
1599         s->tx_ucast_bytes = be64_to_cpu(fwstats.tx_ucast_bytes);
1600         s->tx_ucast_frames = be64_to_cpu(fwstats.tx_ucast_frames);
1601         s->tx_drop_frames = be64_to_cpu(fwstats.tx_drop_frames);
1602         s->tx_offload_bytes = be64_to_cpu(fwstats.tx_offload_bytes);
1603         s->tx_offload_frames = be64_to_cpu(fwstats.tx_offload_frames);
1604
1605         s->rx_bcast_bytes = be64_to_cpu(fwstats.rx_bcast_bytes);
1606         s->rx_bcast_frames = be64_to_cpu(fwstats.rx_bcast_frames);
1607         s->rx_mcast_bytes = be64_to_cpu(fwstats.rx_mcast_bytes);
1608         s->rx_mcast_frames = be64_to_cpu(fwstats.rx_mcast_frames);
1609         s->rx_ucast_bytes = be64_to_cpu(fwstats.rx_ucast_bytes);
1610         s->rx_ucast_frames = be64_to_cpu(fwstats.rx_ucast_frames);
1611
1612         s->rx_err_frames = be64_to_cpu(fwstats.rx_err_frames);
1613
1614         return 0;
1615 }
1616
1617 /**
1618  *      t4vf_iq_free - free an ingress queue and its free lists
1619  *      @adapter: the adapter
1620  *      @iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
1621  *      @iqid: ingress queue ID
1622  *      @fl0id: FL0 queue ID or 0xffff if no attached FL0
1623  *      @fl1id: FL1 queue ID or 0xffff if no attached FL1
1624  *
1625  *      Frees an ingress queue and its associated free lists, if any.
1626  */
1627 int t4vf_iq_free(struct adapter *adapter, unsigned int iqtype,
1628                  unsigned int iqid, unsigned int fl0id, unsigned int fl1id)
1629 {
1630         struct fw_iq_cmd cmd;
1631
1632         memset(&cmd, 0, sizeof(cmd));
1633         cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_IQ_CMD) |
1634                                     FW_CMD_REQUEST_F |
1635                                     FW_CMD_EXEC_F);
1636         cmd.alloc_to_len16 = cpu_to_be32(FW_IQ_CMD_FREE_F |
1637                                          FW_LEN16(cmd));
1638         cmd.type_to_iqandstindex =
1639                 cpu_to_be32(FW_IQ_CMD_TYPE_V(iqtype));
1640
1641         cmd.iqid = cpu_to_be16(iqid);
1642         cmd.fl0id = cpu_to_be16(fl0id);
1643         cmd.fl1id = cpu_to_be16(fl1id);
1644         return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1645 }
1646
1647 /**
1648  *      t4vf_eth_eq_free - free an Ethernet egress queue
1649  *      @adapter: the adapter
1650  *      @eqid: egress queue ID
1651  *
1652  *      Frees an Ethernet egress queue.
1653  */
1654 int t4vf_eth_eq_free(struct adapter *adapter, unsigned int eqid)
1655 {
1656         struct fw_eq_eth_cmd cmd;
1657
1658         memset(&cmd, 0, sizeof(cmd));
1659         cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_EQ_ETH_CMD) |
1660                                     FW_CMD_REQUEST_F |
1661                                     FW_CMD_EXEC_F);
1662         cmd.alloc_to_len16 = cpu_to_be32(FW_EQ_ETH_CMD_FREE_F |
1663                                          FW_LEN16(cmd));
1664         cmd.eqid_pkd = cpu_to_be32(FW_EQ_ETH_CMD_EQID_V(eqid));
1665         return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
1666 }
1667
1668 /**
1669  *      t4vf_handle_fw_rpl - process a firmware reply message
1670  *      @adapter: the adapter
1671  *      @rpl: start of the firmware message
1672  *
1673  *      Processes a firmware message, such as link state change messages.
1674  */
1675 int t4vf_handle_fw_rpl(struct adapter *adapter, const __be64 *rpl)
1676 {
1677         const struct fw_cmd_hdr *cmd_hdr = (const struct fw_cmd_hdr *)rpl;
1678         u8 opcode = FW_CMD_OP_G(be32_to_cpu(cmd_hdr->hi));
1679
1680         switch (opcode) {
1681         case FW_PORT_CMD: {
1682                 /*
1683                  * Link/module state change message.
1684                  */
1685                 const struct fw_port_cmd *port_cmd =
1686                         (const struct fw_port_cmd *)rpl;
1687                 u32 stat, mod;
1688                 int action, port_id, link_ok, speed, fc, pidx;
1689
1690                 /*
1691                  * Extract various fields from port status change message.
1692                  */
1693                 action = FW_PORT_CMD_ACTION_G(
1694                         be32_to_cpu(port_cmd->action_to_len16));
1695                 if (action != FW_PORT_ACTION_GET_PORT_INFO) {
1696                         dev_err(adapter->pdev_dev,
1697                                 "Unknown firmware PORT reply action %x\n",
1698                                 action);
1699                         break;
1700                 }
1701
1702                 port_id = FW_PORT_CMD_PORTID_G(
1703                         be32_to_cpu(port_cmd->op_to_portid));
1704
1705                 stat = be32_to_cpu(port_cmd->u.info.lstatus_to_modtype);
1706                 link_ok = (stat & FW_PORT_CMD_LSTATUS_F) != 0;
1707                 speed = 0;
1708                 fc = 0;
1709                 if (stat & FW_PORT_CMD_RXPAUSE_F)
1710                         fc |= PAUSE_RX;
1711                 if (stat & FW_PORT_CMD_TXPAUSE_F)
1712                         fc |= PAUSE_TX;
1713                 if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_100M))
1714                         speed = 100;
1715                 else if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_1G))
1716                         speed = 1000;
1717                 else if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_10G))
1718                         speed = 10000;
1719                 else if (stat & FW_PORT_CMD_LSPEED_V(FW_PORT_CAP_SPEED_40G))
1720                         speed = 40000;
1721
1722                 /*
1723                  * Scan all of our "ports" (Virtual Interfaces) looking for
1724                  * those bound to the physical port which has changed.  If
1725                  * our recorded state doesn't match the current state,
1726                  * signal that change to the OS code.
1727                  */
1728                 for_each_port(adapter, pidx) {
1729                         struct port_info *pi = adap2pinfo(adapter, pidx);
1730                         struct link_config *lc;
1731
1732                         if (pi->port_id != port_id)
1733                                 continue;
1734
1735                         lc = &pi->link_cfg;
1736
1737                         mod = FW_PORT_CMD_MODTYPE_G(stat);
1738                         if (mod != pi->mod_type) {
1739                                 pi->mod_type = mod;
1740                                 t4vf_os_portmod_changed(adapter, pidx);
1741                         }
1742
1743                         if (link_ok != lc->link_ok || speed != lc->speed ||
1744                             fc != lc->fc) {
1745                                 /* something changed */
1746                                 lc->link_ok = link_ok;
1747                                 lc->speed = speed;
1748                                 lc->fc = fc;
1749                                 lc->supported =
1750                                         be16_to_cpu(port_cmd->u.info.pcap);
1751                                 lc->lp_advertising =
1752                                         be16_to_cpu(port_cmd->u.info.lpacap);
1753                                 t4vf_os_link_changed(adapter, pidx, link_ok);
1754                         }
1755                 }
1756                 break;
1757         }
1758
1759         default:
1760                 dev_err(adapter->pdev_dev, "Unknown firmware reply %X\n",
1761                         opcode);
1762         }
1763         return 0;
1764 }
1765
1766 /**
1767  */
1768 int t4vf_prep_adapter(struct adapter *adapter)
1769 {
1770         int err;
1771         unsigned int chipid;
1772
1773         /* Wait for the device to become ready before proceeding ...
1774          */
1775         err = t4vf_wait_dev_ready(adapter);
1776         if (err)
1777                 return err;
1778
1779         /* Default port and clock for debugging in case we can't reach
1780          * firmware.
1781          */
1782         adapter->params.nports = 1;
1783         adapter->params.vfres.pmask = 1;
1784         adapter->params.vpd.cclk = 50000;
1785
1786         adapter->params.chip = 0;
1787         switch (CHELSIO_PCI_ID_VER(adapter->pdev->device)) {
1788         case CHELSIO_T4:
1789                 adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T4, 0);
1790                 adapter->params.arch.sge_fl_db = DBPRIO_F;
1791                 adapter->params.arch.mps_tcam_size =
1792                                 NUM_MPS_CLS_SRAM_L_INSTANCES;
1793                 break;
1794
1795         case CHELSIO_T5:
1796                 chipid = REV_G(t4_read_reg(adapter, PL_VF_REV_A));
1797                 adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T5, chipid);
1798                 adapter->params.arch.sge_fl_db = DBPRIO_F | DBTYPE_F;
1799                 adapter->params.arch.mps_tcam_size =
1800                                 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
1801                 break;
1802
1803         case CHELSIO_T6:
1804                 chipid = REV_G(t4_read_reg(adapter, PL_VF_REV_A));
1805                 adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T6, chipid);
1806                 adapter->params.arch.sge_fl_db = 0;
1807                 adapter->params.arch.mps_tcam_size =
1808                                 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
1809                 break;
1810         }
1811
1812         return 0;
1813 }
1814
1815 /**
1816  *      t4vf_get_vf_mac_acl - Get the MAC address to be set to
1817  *                            the VI of this VF.
1818  *      @adapter: The adapter
1819  *      @pf: The pf associated with vf
1820  *      @naddr: the number of ACL MAC addresses returned in addr
1821  *      @addr: Placeholder for MAC addresses
1822  *
1823  *      Find the MAC address to be set to the VF's VI. The requested MAC address
1824  *      is from the host OS via callback in the PF driver.
1825  */
1826 int t4vf_get_vf_mac_acl(struct adapter *adapter, unsigned int pf,
1827                         unsigned int *naddr, u8 *addr)
1828 {
1829         struct fw_acl_mac_cmd cmd;
1830         int ret;
1831
1832         memset(&cmd, 0, sizeof(cmd));
1833         cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_ACL_MAC_CMD) |
1834                                     FW_CMD_REQUEST_F |
1835                                     FW_CMD_READ_F);
1836         cmd.en_to_len16 = cpu_to_be32((unsigned int)FW_LEN16(cmd));
1837         ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &cmd);
1838         if (ret)
1839                 return ret;
1840
1841         if (cmd.nmac < *naddr)
1842                 *naddr = cmd.nmac;
1843
1844         switch (pf) {
1845         case 3:
1846                 memcpy(addr, cmd.macaddr3, sizeof(cmd.macaddr3));
1847                 break;
1848         case 2:
1849                 memcpy(addr, cmd.macaddr2, sizeof(cmd.macaddr2));
1850                 break;
1851         case 1:
1852                 memcpy(addr, cmd.macaddr1, sizeof(cmd.macaddr1));
1853                 break;
1854         case 0:
1855                 memcpy(addr, cmd.macaddr0, sizeof(cmd.macaddr0));
1856                 break;
1857         }
1858
1859         return ret;
1860 }