drivers/net/ethernet/qlogic/qed/qed_init_fw_funcs.c

   1 /* QLogic qed NIC Driver
   2  * Copyright (c) 2015 QLogic Corporation
   3  *
   4  * This software is available under the terms of the GNU General Public License
   5  * (GPL) Version 2, available from the file COPYING in the main directory of
   6  * this source tree.
   7  */
   8
   9 #include <linux/types.h>
  10 #include <linux/delay.h>
  11 #include <linux/kernel.h>
  12 #include <linux/slab.h>
  13 #include <linux/string.h>
  14 #include "qed_hsi.h"
  15 #include "qed_hw.h"
  16 #include "qed_init_ops.h"
  17 #include "qed_reg_addr.h"
  18
  19 enum cminterface {
  20         MCM_SEC,
  21         MCM_PRI,
  22         UCM_SEC,
  23         UCM_PRI,
  24         TCM_SEC,
  25         TCM_PRI,
  26         YCM_SEC,
  27         YCM_PRI,
  28         XCM_SEC,
  29         XCM_PRI,
  30         NUM_OF_CM_INTERFACES
  31 };
  32
  33 /* general constants */
  34 #define QM_PQ_ELEMENT_SIZE                      4 /* in bytes */
  35 #define QM_PQ_MEM_4KB(pq_size)  (pq_size ? DIV_ROUND_UP((pq_size + 1) * \
  36                                                         QM_PQ_ELEMENT_SIZE, \
  37                                                         0x1000) : 0)
  38 #define QM_PQ_SIZE_256B(pq_size)        (pq_size ? DIV_ROUND_UP(pq_size, \
  39                                                                 0x100) - 1 : 0)
  40 #define QM_INVALID_PQ_ID                        0xffff
  41 /* feature enable */
  42 #define QM_BYPASS_EN                            1
  43 #define QM_BYTE_CRD_EN                          1
  44 /* other PQ constants */
  45 #define QM_OTHER_PQS_PER_PF                     4
  46 /* WFQ constants */
  47 #define QM_WFQ_UPPER_BOUND              6250000
  48 #define QM_WFQ_VP_PQ_VOQ_SHIFT          0
  49 #define QM_WFQ_VP_PQ_PF_SHIFT           5
  50 #define QM_WFQ_INC_VAL(weight)          ((weight) * 0x9000)
  51 #define QM_WFQ_MAX_INC_VAL                      4375000
  52 #define QM_WFQ_INIT_CRD(inc_val)        (2 * (inc_val))
  53 /* RL constants */
  54 #define QM_RL_UPPER_BOUND                       6250000
  55 #define QM_RL_PERIOD                            5               /* in us */
  56 #define QM_RL_PERIOD_CLK_25M            (25 * QM_RL_PERIOD)
  57 #define QM_RL_INC_VAL(rate)             max_t(u32,      \
  58                                               (((rate ? rate : 1000000) \
  59                                                 * QM_RL_PERIOD) / 8), 1)
  60 #define QM_RL_MAX_INC_VAL                       4375000
  61 /* AFullOprtnstcCrdMask constants */
  62 #define QM_OPPOR_LINE_VOQ_DEF           1
  63 #define QM_OPPOR_FW_STOP_DEF            0
  64 #define QM_OPPOR_PQ_EMPTY_DEF           1
  65 #define EAGLE_WORKAROUND_TC                     7
  66 /* Command Queue constants */
  67 #define PBF_CMDQ_PURE_LB_LINES                          150
  68 #define PBF_CMDQ_EAGLE_WORKAROUND_LINES         8
  69 #define PBF_CMDQ_LINES_RT_OFFSET(voq)           (                \
  70                 PBF_REG_YCMD_QS_NUM_LINES_VOQ0_RT_OFFSET + voq * \
  71                 (PBF_REG_YCMD_QS_NUM_LINES_VOQ1_RT_OFFSET -      \
  72                  PBF_REG_YCMD_QS_NUM_LINES_VOQ0_RT_OFFSET))
  73 #define PBF_BTB_GUARANTEED_RT_OFFSET(voq)       (             \
  74                 PBF_REG_BTB_GUARANTEED_VOQ0_RT_OFFSET + voq * \
  75                 (PBF_REG_BTB_GUARANTEED_VOQ1_RT_OFFSET -      \
  76                  PBF_REG_BTB_GUARANTEED_VOQ0_RT_OFFSET))
  77 #define QM_VOQ_LINE_CRD(pbf_cmd_lines)          ((((pbf_cmd_lines) - \
  78                                                    4) *              \
  79                                                   2) | QM_LINE_CRD_REG_SIGN_BIT)
  80 /* BTB: blocks constants (block size = 256B) */
  81 #define BTB_JUMBO_PKT_BLOCKS            38
  82 #define BTB_HEADROOM_BLOCKS                     BTB_JUMBO_PKT_BLOCKS
  83 #define BTB_EAGLE_WORKAROUND_BLOCKS     4
  84 #define BTB_PURE_LB_FACTOR                      10
  85 #define BTB_PURE_LB_RATIO                       7
  86 /* QM stop command constants */
  87 #define QM_STOP_PQ_MASK_WIDTH                   32
  88 #define QM_STOP_CMD_ADDR                                0x2
  89 #define QM_STOP_CMD_STRUCT_SIZE                 2
  90 #define QM_STOP_CMD_PAUSE_MASK_OFFSET   0
  91 #define QM_STOP_CMD_PAUSE_MASK_SHIFT    0
  92 #define QM_STOP_CMD_PAUSE_MASK_MASK             -1
  93 #define QM_STOP_CMD_GROUP_ID_OFFSET             1
  94 #define QM_STOP_CMD_GROUP_ID_SHIFT              16
  95 #define QM_STOP_CMD_GROUP_ID_MASK               15
  96 #define QM_STOP_CMD_PQ_TYPE_OFFSET              1
  97 #define QM_STOP_CMD_PQ_TYPE_SHIFT               24
  98 #define QM_STOP_CMD_PQ_TYPE_MASK                1
  99 #define QM_STOP_CMD_MAX_POLL_COUNT              100
 100 #define QM_STOP_CMD_POLL_PERIOD_US              500
 101 /* QM command macros */
 102 #define QM_CMD_STRUCT_SIZE(cmd)                 cmd ## \
 103         _STRUCT_SIZE
 104 #define QM_CMD_SET_FIELD(var, cmd, field,                                 \
 105                          value)        SET_FIELD(var[cmd ## _ ## field ## \
 106                                                      _OFFSET],            \
 107                                                  cmd ## _ ## field,       \
 108                                                  value)
 109 /* QM: VOQ macros */
 110 #define PHYS_VOQ(port, tc, max_phy_tcs_pr_port) ((port) *       \
 111                                                  (max_phy_tcs_pr_port) \
 112                                                  + (tc))
 113 #define LB_VOQ(port)                            ( \
 114                 MAX_PHYS_VOQS + (port))
 115 #define VOQ(port, tc, max_phy_tcs_pr_port)      \
 116         ((tc) <         \
 117          LB_TC ? PHYS_VOQ(port,         \
 118                           tc,                    \
 119                           max_phy_tcs_pr_port) \
 120                 : LB_VOQ(port))
 121 /******************** INTERNAL IMPLEMENTATION *********************/
 122 /* Prepare PF RL enable/disable runtime init values */
 123 static void qed_enable_pf_rl(struct qed_hwfn *p_hwfn,
 124                              bool pf_rl_en)
 125 {
 126         STORE_RT_REG(p_hwfn, QM_REG_RLPFENABLE_RT_OFFSET, pf_rl_en ? 1 : 0);
 127         if (pf_rl_en) {
 128                 /* enable RLs for all VOQs */
 129                 STORE_RT_REG(p_hwfn, QM_REG_RLPFVOQENABLE_RT_OFFSET,
 130                              (1 << MAX_NUM_VOQS) - 1);
 131                 /* write RL period */
 132                 STORE_RT_REG(p_hwfn,
 133                              QM_REG_RLPFPERIOD_RT_OFFSET,
 134                              QM_RL_PERIOD_CLK_25M);
 135                 STORE_RT_REG(p_hwfn,
 136                              QM_REG_RLPFPERIODTIMER_RT_OFFSET,
 137                              QM_RL_PERIOD_CLK_25M);
 138                 /* set credit threshold for QM bypass flow */
 139                 if (QM_BYPASS_EN)
 140                         STORE_RT_REG(p_hwfn,
 141                                      QM_REG_AFULLQMBYPTHRPFRL_RT_OFFSET,
 142                                      QM_RL_UPPER_BOUND);
 143         }
 144 }
 145
 146 /* Prepare PF WFQ enable/disable runtime init values */
 147 static void qed_enable_pf_wfq(struct qed_hwfn *p_hwfn,
 148                               bool pf_wfq_en)
 149 {
 150         STORE_RT_REG(p_hwfn, QM_REG_WFQPFENABLE_RT_OFFSET, pf_wfq_en ? 1 : 0);
 151         /* set credit threshold for QM bypass flow */
 152         if (pf_wfq_en && QM_BYPASS_EN)
 153                 STORE_RT_REG(p_hwfn,
 154                              QM_REG_AFULLQMBYPTHRPFWFQ_RT_OFFSET,
 155                              QM_WFQ_UPPER_BOUND);
 156 }
 157
 158 /* Prepare VPORT RL enable/disable runtime init values */
 159 static void qed_enable_vport_rl(struct qed_hwfn *p_hwfn,
 160                                 bool vport_rl_en)
 161 {
 162         STORE_RT_REG(p_hwfn, QM_REG_RLGLBLENABLE_RT_OFFSET,
 163                      vport_rl_en ? 1 : 0);
 164         if (vport_rl_en) {
 165                 /* write RL period (use timer 0 only) */
 166                 STORE_RT_REG(p_hwfn,
 167                              QM_REG_RLGLBLPERIOD_0_RT_OFFSET,
 168                              QM_RL_PERIOD_CLK_25M);
 169                 STORE_RT_REG(p_hwfn,
 170                              QM_REG_RLGLBLPERIODTIMER_0_RT_OFFSET,
 171                              QM_RL_PERIOD_CLK_25M);
 172                 /* set credit threshold for QM bypass flow */
 173                 if (QM_BYPASS_EN)
 174                         STORE_RT_REG(p_hwfn,
 175                                      QM_REG_AFULLQMBYPTHRGLBLRL_RT_OFFSET,
 176                                      QM_RL_UPPER_BOUND);
 177         }
 178 }
 179
 180 /* Prepare VPORT WFQ enable/disable runtime init values */
 181 static void qed_enable_vport_wfq(struct qed_hwfn *p_hwfn,
 182                                  bool vport_wfq_en)
 183 {
 184         STORE_RT_REG(p_hwfn, QM_REG_WFQVPENABLE_RT_OFFSET,
 185                      vport_wfq_en ? 1 : 0);
 186         /* set credit threshold for QM bypass flow */
 187         if (vport_wfq_en && QM_BYPASS_EN)
 188                 STORE_RT_REG(p_hwfn,
 189                              QM_REG_AFULLQMBYPTHRVPWFQ_RT_OFFSET,
 190                              QM_WFQ_UPPER_BOUND);
 191 }
 192
 193 /* Prepare runtime init values to allocate PBF command queue lines for
 194  * the specified VOQ
 195  */
 196 static void qed_cmdq_lines_voq_rt_init(struct qed_hwfn *p_hwfn,
 197                                        u8 voq,
 198                                        u16 cmdq_lines)
 199 {
 200         u32 qm_line_crd;
 201
 202         /* In A0 - Limit the size of pbf queue so that only 511 commands with
 203          * the minimum size of 4 (FCoE minimum size)
 204          */
 205         bool is_bb_a0 = QED_IS_BB_A0(p_hwfn->cdev);
 206
 207         if (is_bb_a0)
 208                 cmdq_lines = min_t(u32, cmdq_lines, 1022);
 209         qm_line_crd = QM_VOQ_LINE_CRD(cmdq_lines);
 210         OVERWRITE_RT_REG(p_hwfn, PBF_CMDQ_LINES_RT_OFFSET(voq),
 211                          (u32)cmdq_lines);
 212         STORE_RT_REG(p_hwfn, QM_REG_VOQCRDLINE_RT_OFFSET + voq, qm_line_crd);
 213         STORE_RT_REG(p_hwfn, QM_REG_VOQINITCRDLINE_RT_OFFSET + voq,
 214                      qm_line_crd);
 215 }
 216
 217 /* Prepare runtime init values to allocate PBF command queue lines. */
 218 static void qed_cmdq_lines_rt_init(
 219         struct qed_hwfn *p_hwfn,
 220         u8 max_ports_per_engine,
 221         u8 max_phys_tcs_per_port,
 222         struct init_qm_port_params port_params[MAX_NUM_PORTS])
 223 {
 224         u8 tc, voq, port_id;
 225
 226         /* clear PBF lines for all VOQs */
 227         for (voq = 0; voq < MAX_NUM_VOQS; voq++)
 228                 STORE_RT_REG(p_hwfn, PBF_CMDQ_LINES_RT_OFFSET(voq), 0);
 229         for (port_id = 0; port_id < max_ports_per_engine; port_id++) {
 230                 if (port_params[port_id].active) {
 231                         u16 phys_lines, phys_lines_per_tc;
 232                         u8 phys_tcs = port_params[port_id].num_active_phys_tcs;
 233
 234                         /* find #lines to divide between the active
 235                          * physical TCs.
 236                          */
 237                         phys_lines = port_params[port_id].num_pbf_cmd_lines -
 238                                      PBF_CMDQ_PURE_LB_LINES;
 239                         /* find #lines per active physical TC */
 240                         phys_lines_per_tc = phys_lines / phys_tcs;
 241                         /* init registers per active TC */
 242                         for (tc = 0; tc < phys_tcs; tc++) {
 243                                 voq = PHYS_VOQ(port_id, tc,
 244                                                max_phys_tcs_per_port);
 245                                 qed_cmdq_lines_voq_rt_init(p_hwfn, voq,
 246                                                            phys_lines_per_tc);
 247                         }
 248                         /* init registers for pure LB TC */
 249                         qed_cmdq_lines_voq_rt_init(p_hwfn, LB_VOQ(port_id),
 250                                                    PBF_CMDQ_PURE_LB_LINES);
 251                 }
 252         }
 253 }
 254
 255 static void qed_btb_blocks_rt_init(
 256         struct qed_hwfn *p_hwfn,
 257         u8 max_ports_per_engine,
 258         u8 max_phys_tcs_per_port,
 259         struct init_qm_port_params port_params[MAX_NUM_PORTS])
 260 {
 261         u32 usable_blocks, pure_lb_blocks, phys_blocks;
 262         u8 tc, voq, port_id;
 263
 264         for (port_id = 0; port_id < max_ports_per_engine; port_id++) {
 265                 u32 temp;
 266                 u8 phys_tcs;
 267
 268                 if (!port_params[port_id].active)
 269                         continue;
 270
 271                 phys_tcs = port_params[port_id].num_active_phys_tcs;
 272
 273                 /* subtract headroom blocks */
 274                 usable_blocks = port_params[port_id].num_btb_blocks -
 275                                 BTB_HEADROOM_BLOCKS;
 276
 277                 /* find blocks per physical TC. use factor to avoid
 278                  * floating arithmethic.
 279                  */
 280                 pure_lb_blocks = (usable_blocks * BTB_PURE_LB_FACTOR) /
 281                                  (phys_tcs * BTB_PURE_LB_FACTOR +
 282                                   BTB_PURE_LB_RATIO);
 283                 pure_lb_blocks = max_t(u32, BTB_JUMBO_PKT_BLOCKS,
 284                                        pure_lb_blocks / BTB_PURE_LB_FACTOR);
 285                 phys_blocks = (usable_blocks - pure_lb_blocks) / phys_tcs;
 286
 287                 /* init physical TCs */
 288                 for (tc = 0; tc < phys_tcs; tc++) {
 289                         voq = PHYS_VOQ(port_id, tc, max_phys_tcs_per_port);
 290                         STORE_RT_REG(p_hwfn, PBF_BTB_GUARANTEED_RT_OFFSET(voq),
 291                                      phys_blocks);
 292                 }
 293
 294                 /* init pure LB TC */
 295                 temp = LB_VOQ(port_id);
 296                 STORE_RT_REG(p_hwfn, PBF_BTB_GUARANTEED_RT_OFFSET(temp),
 297                              pure_lb_blocks);
 298         }
 299 }
 300
 301 /* Prepare Tx PQ mapping runtime init values for the specified PF */
 302 static void qed_tx_pq_map_rt_init(
 303         struct qed_hwfn *p_hwfn,
 304         struct qed_ptt *p_ptt,
 305         struct qed_qm_pf_rt_init_params *p_params,
 306         u32 base_mem_addr_4kb)
 307 {
 308         struct init_qm_vport_params *vport_params = p_params->vport_params;
 309         u16 num_pqs = p_params->num_pf_pqs + p_params->num_vf_pqs;
 310         u16 first_pq_group = p_params->start_pq / QM_PF_QUEUE_GROUP_SIZE;
 311         u16 last_pq_group = (p_params->start_pq + num_pqs - 1) /
 312                             QM_PF_QUEUE_GROUP_SIZE;
 313         bool is_bb_a0 = QED_IS_BB_A0(p_hwfn->cdev);
 314         u16 i, pq_id, pq_group;
 315
 316         /* a bit per Tx PQ indicating if the PQ is associated with a VF */
 317         u32 tx_pq_vf_mask[MAX_QM_TX_QUEUES / QM_PF_QUEUE_GROUP_SIZE] = { 0 };
 318         u32 tx_pq_vf_mask_width = is_bb_a0 ? 32 : QM_PF_QUEUE_GROUP_SIZE;
 319         u32 num_tx_pq_vf_masks = MAX_QM_TX_QUEUES / tx_pq_vf_mask_width;
 320         u32 pq_mem_4kb = QM_PQ_MEM_4KB(p_params->num_pf_cids);
 321         u32 vport_pq_mem_4kb = QM_PQ_MEM_4KB(p_params->num_vf_cids);
 322         u32 mem_addr_4kb = base_mem_addr_4kb;
 323
 324         /* set mapping from PQ group to PF */
 325         for (pq_group = first_pq_group; pq_group <= last_pq_group; pq_group++)
 326                 STORE_RT_REG(p_hwfn, QM_REG_PQTX2PF_0_RT_OFFSET + pq_group,
 327                              (u32)(p_params->pf_id));
 328         /* set PQ sizes */
 329         STORE_RT_REG(p_hwfn, QM_REG_MAXPQSIZE_0_RT_OFFSET,
 330                      QM_PQ_SIZE_256B(p_params->num_pf_cids));
 331         STORE_RT_REG(p_hwfn, QM_REG_MAXPQSIZE_1_RT_OFFSET,
 332                      QM_PQ_SIZE_256B(p_params->num_vf_cids));
 333
 334         /* go over all Tx PQs */
 335         for (i = 0, pq_id = p_params->start_pq; i < num_pqs; i++, pq_id++) {
 336                 u8 voq = VOQ(p_params->port_id, p_params->pq_params[i].tc_id,
 337                              p_params->max_phys_tcs_per_port);
 338                 bool is_vf_pq = (i >= p_params->num_pf_pqs);
 339                 struct qm_rf_pq_map tx_pq_map;
 340
 341                 /* update first Tx PQ of VPORT/TC */
 342                 u8 vport_id_in_pf = p_params->pq_params[i].vport_id -
 343                                     p_params->start_vport;
 344                 u16 *pq_ids = &vport_params[vport_id_in_pf].first_tx_pq_id[0];
 345                 u16 first_tx_pq_id = pq_ids[p_params->pq_params[i].tc_id];
 346
 347                 if (first_tx_pq_id == QM_INVALID_PQ_ID) {
 348                         /* create new VP PQ */
 349                         pq_ids[p_params->pq_params[i].tc_id] = pq_id;
 350                         first_tx_pq_id = pq_id;
 351                         /* map VP PQ to VOQ and PF */
 352                         STORE_RT_REG(p_hwfn,
 353                                      QM_REG_WFQVPMAP_RT_OFFSET +
 354                                      first_tx_pq_id,
 355                                      (voq << QM_WFQ_VP_PQ_VOQ_SHIFT) |
 356                                      (p_params->pf_id <<
 357                                       QM_WFQ_VP_PQ_PF_SHIFT));
 358                 }
 359                 /* fill PQ map entry */
 360                 memset(&tx_pq_map, 0, sizeof(tx_pq_map));
 361                 SET_FIELD(tx_pq_map.reg, QM_RF_PQ_MAP_PQ_VALID, 1);
 362                 SET_FIELD(tx_pq_map.reg, QM_RF_PQ_MAP_RL_VALID,
 363                           is_vf_pq ? 1 : 0);
 364                 SET_FIELD(tx_pq_map.reg, QM_RF_PQ_MAP_VP_PQ_ID, first_tx_pq_id);
 365                 SET_FIELD(tx_pq_map.reg, QM_RF_PQ_MAP_RL_ID,
 366                           is_vf_pq ? p_params->pq_params[i].vport_id : 0);
 367                 SET_FIELD(tx_pq_map.reg, QM_RF_PQ_MAP_VOQ, voq);
 368                 SET_FIELD(tx_pq_map.reg, QM_RF_PQ_MAP_WRR_WEIGHT_GROUP,
 369                           p_params->pq_params[i].wrr_group);
 370                 /* write PQ map entry to CAM */
 371                 STORE_RT_REG(p_hwfn, QM_REG_TXPQMAP_RT_OFFSET + pq_id,
 372                              *((u32 *)&tx_pq_map));
 373                 /* set base address */
 374                 STORE_RT_REG(p_hwfn,
 375                              QM_REG_BASEADDRTXPQ_RT_OFFSET + pq_id,
 376                              mem_addr_4kb);
 377                 /* check if VF PQ */
 378                 if (is_vf_pq) {
 379                         /* if PQ is associated with a VF, add indication
 380                          * to PQ VF mask
 381                          */
 382                         tx_pq_vf_mask[pq_id / tx_pq_vf_mask_width] |=
 383                                 (1 << (pq_id % tx_pq_vf_mask_width));
 384                         mem_addr_4kb += vport_pq_mem_4kb;
 385                 } else {
 386                         mem_addr_4kb += pq_mem_4kb;
 387                 }
 388         }
 389
 390         /* store Tx PQ VF mask to size select register */
 391         for (i = 0; i < num_tx_pq_vf_masks; i++) {
 392                 if (tx_pq_vf_mask[i]) {
 393                         if (is_bb_a0) {
 394                                 u32 curr_mask = 0, addr;
 395
 396                                 addr = QM_REG_MAXPQSIZETXSEL_0 + (i * 4);
 397                                 if (!p_params->is_first_pf)
 398                                         curr_mask = qed_rd(p_hwfn, p_ptt,
 399                                                            addr);
 400
 401                                 addr = QM_REG_MAXPQSIZETXSEL_0_RT_OFFSET + i;
 402
 403                                 STORE_RT_REG(p_hwfn, addr,
 404                                              curr_mask | tx_pq_vf_mask[i]);
 405                         } else {
 406                                 u32 addr;
 407
 408                                 addr = QM_REG_MAXPQSIZETXSEL_0_RT_OFFSET + i;
 409                                 STORE_RT_REG(p_hwfn, addr,
 410                                              tx_pq_vf_mask[i]);
 411                         }
 412                 }
 413         }
 414 }
 415
 416 /* Prepare Other PQ mapping runtime init values for the specified PF */
 417 static void qed_other_pq_map_rt_init(struct qed_hwfn *p_hwfn,
 418                                      u8 port_id,
 419                                      u8 pf_id,
 420                                      u32 num_pf_cids,
 421                                      u32 num_tids,
 422                                      u32 base_mem_addr_4kb)
 423 {
 424         u16 i, pq_id;
 425
 426         /* a single other PQ group is used in each PF,
 427          * where PQ group i is used in PF i.
 428          */
 429         u16 pq_group = pf_id;
 430         u32 pq_size = num_pf_cids + num_tids;
 431         u32 pq_mem_4kb = QM_PQ_MEM_4KB(pq_size);
 432         u32 mem_addr_4kb = base_mem_addr_4kb;
 433
 434         /* map PQ group to PF */
 435         STORE_RT_REG(p_hwfn, QM_REG_PQOTHER2PF_0_RT_OFFSET + pq_group,
 436                      (u32)(pf_id));
 437         /* set PQ sizes */
 438         STORE_RT_REG(p_hwfn, QM_REG_MAXPQSIZE_2_RT_OFFSET,
 439                      QM_PQ_SIZE_256B(pq_size));
 440         /* set base address */
 441         for (i = 0, pq_id = pf_id * QM_PF_QUEUE_GROUP_SIZE;
 442              i < QM_OTHER_PQS_PER_PF; i++, pq_id++) {
 443                 STORE_RT_REG(p_hwfn,
 444                              QM_REG_BASEADDROTHERPQ_RT_OFFSET + pq_id,
 445                              mem_addr_4kb);
 446                 mem_addr_4kb += pq_mem_4kb;
 447         }
 448 }
 449
 450 /* Prepare PF WFQ runtime init values for the specified PF.
 451  * Return -1 on error.
 452  */
 453 static int qed_pf_wfq_rt_init(struct qed_hwfn *p_hwfn,
 454                               struct qed_qm_pf_rt_init_params *p_params)
 455 {
 456         u16 num_tx_pqs = p_params->num_pf_pqs + p_params->num_vf_pqs;
 457         u32 crd_reg_offset;
 458         u32 inc_val;
 459         u16 i;
 460
 461         if (p_params->pf_id < MAX_NUM_PFS_BB)
 462                 crd_reg_offset = QM_REG_WFQPFCRD_RT_OFFSET;
 463         else
 464                 crd_reg_offset = QM_REG_WFQPFCRD_MSB_RT_OFFSET +
 465                                  (p_params->pf_id % MAX_NUM_PFS_BB);
 466
 467         inc_val = QM_WFQ_INC_VAL(p_params->pf_wfq);
 468         if (inc_val > QM_WFQ_MAX_INC_VAL) {
 469                 DP_NOTICE(p_hwfn, "Invalid PF WFQ weight configuration");
 470                 return -1;
 471         }
 472         STORE_RT_REG(p_hwfn, QM_REG_WFQPFWEIGHT_RT_OFFSET + p_params->pf_id,
 473                      inc_val);
 474         STORE_RT_REG(p_hwfn,
 475                      QM_REG_WFQPFUPPERBOUND_RT_OFFSET + p_params->pf_id,
 476                      QM_WFQ_UPPER_BOUND | QM_WFQ_CRD_REG_SIGN_BIT);
 477
 478         for (i = 0; i < num_tx_pqs; i++) {
 479                 u8 voq = VOQ(p_params->port_id, p_params->pq_params[i].tc_id,
 480                              p_params->max_phys_tcs_per_port);
 481
 482                 OVERWRITE_RT_REG(p_hwfn,
 483                                  crd_reg_offset + voq * MAX_NUM_PFS_BB,
 484                                  QM_WFQ_INIT_CRD(inc_val) |
 485                                  QM_WFQ_CRD_REG_SIGN_BIT);
 486         }
 487
 488         return 0;
 489 }
 490
 491 /* Prepare PF RL runtime init values for the specified PF.
 492  * Return -1 on error.
 493  */
 494 static int qed_pf_rl_rt_init(struct qed_hwfn *p_hwfn,
 495                              u8 pf_id,
 496                              u32 pf_rl)
 497 {
 498         u32 inc_val = QM_RL_INC_VAL(pf_rl);
 499
 500         if (inc_val > QM_RL_MAX_INC_VAL) {
 501                 DP_NOTICE(p_hwfn, "Invalid PF rate limit configuration");
 502                 return -1;
 503         }
 504         STORE_RT_REG(p_hwfn, QM_REG_RLPFCRD_RT_OFFSET + pf_id,
 505                      QM_RL_CRD_REG_SIGN_BIT);
 506         STORE_RT_REG(p_hwfn, QM_REG_RLPFUPPERBOUND_RT_OFFSET + pf_id,
 507                      QM_RL_UPPER_BOUND | QM_RL_CRD_REG_SIGN_BIT);
 508         STORE_RT_REG(p_hwfn, QM_REG_RLPFINCVAL_RT_OFFSET + pf_id, inc_val);
 509         return 0;
 510 }
 511
 512 /* Prepare VPORT WFQ runtime init values for the specified VPORTs.
 513  * Return -1 on error.
 514  */
 515 static int qed_vp_wfq_rt_init(struct qed_hwfn *p_hwfn,
 516                               u8 start_vport,
 517                               u8 num_vports,
 518                               struct init_qm_vport_params *vport_params)
 519 {
 520         u8 tc, i, vport_id;
 521         u32 inc_val;
 522
 523         /* go over all PF VPORTs */
 524         for (i = 0, vport_id = start_vport; i < num_vports; i++, vport_id++) {
 525                 u32 temp = QM_REG_WFQVPUPPERBOUND_RT_OFFSET;
 526                 u16 *pq_ids = &vport_params[i].first_tx_pq_id[0];
 527
 528                 if (!vport_params[i].vport_wfq)
 529                         continue;
 530
 531                 inc_val = QM_WFQ_INC_VAL(vport_params[i].vport_wfq);
 532                 if (inc_val > QM_WFQ_MAX_INC_VAL) {
 533                         DP_NOTICE(p_hwfn,
 534                                   "Invalid VPORT WFQ weight configuration");
 535                         return -1;
 536                 }
 537
 538                 /* each VPORT can have several VPORT PQ IDs for
 539                  * different TCs
 540                  */
 541                 for (tc = 0; tc < NUM_OF_TCS; tc++) {
 542                         u16 vport_pq_id = pq_ids[tc];
 543
 544                         if (vport_pq_id != QM_INVALID_PQ_ID) {
 545                                 STORE_RT_REG(p_hwfn,
 546                                              QM_REG_WFQVPWEIGHT_RT_OFFSET +
 547                                              vport_pq_id, inc_val);
 548                                 STORE_RT_REG(p_hwfn, temp + vport_pq_id,
 549                                              QM_WFQ_UPPER_BOUND |
 550                                              QM_WFQ_CRD_REG_SIGN_BIT);
 551                                 STORE_RT_REG(p_hwfn,
 552                                              QM_REG_WFQVPCRD_RT_OFFSET +
 553                                              vport_pq_id,
 554                                              QM_WFQ_INIT_CRD(inc_val) |
 555                                              QM_WFQ_CRD_REG_SIGN_BIT);
 556                         }
 557                 }
 558         }
 559
 560         return 0;
 561 }
 562
 563 static int qed_vport_rl_rt_init(struct qed_hwfn *p_hwfn,
 564                                 u8 start_vport,
 565                                 u8 num_vports,
 566                                 struct init_qm_vport_params *vport_params)
 567 {
 568         u8 i, vport_id;
 569
 570         /* go over all PF VPORTs */
 571         for (i = 0, vport_id = start_vport; i < num_vports; i++, vport_id++) {
 572                 u32 inc_val = QM_RL_INC_VAL(vport_params[i].vport_rl);
 573
 574                 if (inc_val > QM_RL_MAX_INC_VAL) {
 575                         DP_NOTICE(p_hwfn,
 576                                   "Invalid VPORT rate-limit configuration");
 577                         return -1;
 578                 }
 579
 580                 STORE_RT_REG(p_hwfn,
 581                              QM_REG_RLGLBLCRD_RT_OFFSET + vport_id,
 582                              QM_RL_CRD_REG_SIGN_BIT);
 583                 STORE_RT_REG(p_hwfn,
 584                              QM_REG_RLGLBLUPPERBOUND_RT_OFFSET + vport_id,
 585                              QM_RL_UPPER_BOUND | QM_RL_CRD_REG_SIGN_BIT);
 586                 STORE_RT_REG(p_hwfn,
 587                              QM_REG_RLGLBLINCVAL_RT_OFFSET + vport_id,
 588                              inc_val);
 589         }
 590
 591         return 0;
 592 }
 593
 594 static bool qed_poll_on_qm_cmd_ready(struct qed_hwfn *p_hwfn,
 595                                      struct qed_ptt *p_ptt)
 596 {
 597         u32 reg_val, i;
 598
 599         for (i = 0, reg_val = 0; i < QM_STOP_CMD_MAX_POLL_COUNT && reg_val == 0;
 600              i++) {
 601                 udelay(QM_STOP_CMD_POLL_PERIOD_US);
 602                 reg_val = qed_rd(p_hwfn, p_ptt, QM_REG_SDMCMDREADY);
 603         }
 604
 605         /* check if timeout while waiting for SDM command ready */
 606         if (i == QM_STOP_CMD_MAX_POLL_COUNT) {
 607                 DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
 608                            "Timeout when waiting for QM SDM command ready signal\n");
 609                 return false;
 610         }
 611
 612         return true;
 613 }
 614
 615 static bool qed_send_qm_cmd(struct qed_hwfn *p_hwfn,
 616                             struct qed_ptt *p_ptt,
 617                             u32 cmd_addr,
 618                             u32 cmd_data_lsb,
 619                             u32 cmd_data_msb)
 620 {
 621         if (!qed_poll_on_qm_cmd_ready(p_hwfn, p_ptt))
 622                 return false;
 623
 624         qed_wr(p_hwfn, p_ptt, QM_REG_SDMCMDADDR, cmd_addr);
 625         qed_wr(p_hwfn, p_ptt, QM_REG_SDMCMDDATALSB, cmd_data_lsb);
 626         qed_wr(p_hwfn, p_ptt, QM_REG_SDMCMDDATAMSB, cmd_data_msb);
 627         qed_wr(p_hwfn, p_ptt, QM_REG_SDMCMDGO, 1);
 628         qed_wr(p_hwfn, p_ptt, QM_REG_SDMCMDGO, 0);
 629
 630         return qed_poll_on_qm_cmd_ready(p_hwfn, p_ptt);
 631 }
 632
 633 /******************** INTERFACE IMPLEMENTATION *********************/
 634 u32 qed_qm_pf_mem_size(u8 pf_id,
 635                        u32 num_pf_cids,
 636                        u32 num_vf_cids,
 637                        u32 num_tids,
 638                        u16 num_pf_pqs,
 639                        u16 num_vf_pqs)
 640 {
 641         return QM_PQ_MEM_4KB(num_pf_cids) * num_pf_pqs +
 642                QM_PQ_MEM_4KB(num_vf_cids) * num_vf_pqs +
 643                QM_PQ_MEM_4KB(num_pf_cids + num_tids) * QM_OTHER_PQS_PER_PF;
 644 }
 645
 646 int qed_qm_common_rt_init(
 647         struct qed_hwfn *p_hwfn,
 648         struct qed_qm_common_rt_init_params *p_params)
 649 {
 650         /* init AFullOprtnstcCrdMask */
 651         u32 mask = (QM_OPPOR_LINE_VOQ_DEF <<
 652                     QM_RF_OPPORTUNISTIC_MASK_LINEVOQ_SHIFT) |
 653                    (QM_BYTE_CRD_EN << QM_RF_OPPORTUNISTIC_MASK_BYTEVOQ_SHIFT) |
 654                    (p_params->pf_wfq_en <<
 655                     QM_RF_OPPORTUNISTIC_MASK_PFWFQ_SHIFT) |
 656                    (p_params->vport_wfq_en <<
 657                     QM_RF_OPPORTUNISTIC_MASK_VPWFQ_SHIFT) |
 658                    (p_params->pf_rl_en <<
 659                     QM_RF_OPPORTUNISTIC_MASK_PFRL_SHIFT) |
 660                    (p_params->vport_rl_en <<
 661                     QM_RF_OPPORTUNISTIC_MASK_VPQCNRL_SHIFT) |
 662                    (QM_OPPOR_FW_STOP_DEF <<
 663                     QM_RF_OPPORTUNISTIC_MASK_FWPAUSE_SHIFT) |
 664                    (QM_OPPOR_PQ_EMPTY_DEF <<
 665                     QM_RF_OPPORTUNISTIC_MASK_QUEUEEMPTY_SHIFT);
 666
 667         STORE_RT_REG(p_hwfn, QM_REG_AFULLOPRTNSTCCRDMASK_RT_OFFSET, mask);
 668         qed_enable_pf_rl(p_hwfn, p_params->pf_rl_en);
 669         qed_enable_pf_wfq(p_hwfn, p_params->pf_wfq_en);
 670         qed_enable_vport_rl(p_hwfn, p_params->vport_rl_en);
 671         qed_enable_vport_wfq(p_hwfn, p_params->vport_wfq_en);
 672         qed_cmdq_lines_rt_init(p_hwfn,
 673                                p_params->max_ports_per_engine,
 674                                p_params->max_phys_tcs_per_port,
 675                                p_params->port_params);
 676         qed_btb_blocks_rt_init(p_hwfn,
 677                                p_params->max_ports_per_engine,
 678                                p_params->max_phys_tcs_per_port,
 679                                p_params->port_params);
 680         return 0;
 681 }
 682
 683 int qed_qm_pf_rt_init(struct qed_hwfn *p_hwfn,
 684                       struct qed_ptt *p_ptt,
 685                       struct qed_qm_pf_rt_init_params *p_params)
 686 {
 687         struct init_qm_vport_params *vport_params = p_params->vport_params;
 688         u32 other_mem_size_4kb = QM_PQ_MEM_4KB(p_params->num_pf_cids +
 689                                                p_params->num_tids) *
 690                                  QM_OTHER_PQS_PER_PF;
 691         u8 tc, i;
 692
 693         /* clear first Tx PQ ID array for each VPORT */
 694         for (i = 0; i < p_params->num_vports; i++)
 695                 for (tc = 0; tc < NUM_OF_TCS; tc++)
 696                         vport_params[i].first_tx_pq_id[tc] = QM_INVALID_PQ_ID;
 697
 698         /* map Other PQs (if any) */
 699         qed_other_pq_map_rt_init(p_hwfn, p_params->port_id, p_params->pf_id,
 700                                  p_params->num_pf_cids, p_params->num_tids, 0);
 701
 702         /* map Tx PQs */
 703         qed_tx_pq_map_rt_init(p_hwfn, p_ptt, p_params, other_mem_size_4kb);
 704
 705         if (p_params->pf_wfq)
 706                 if (qed_pf_wfq_rt_init(p_hwfn, p_params))
 707                         return -1;
 708
 709         if (qed_pf_rl_rt_init(p_hwfn, p_params->pf_id, p_params->pf_rl))
 710                 return -1;
 711
 712         if (qed_vp_wfq_rt_init(p_hwfn, p_params->start_vport,
 713                                p_params->num_vports, vport_params))
 714                 return -1;
 715
 716         if (qed_vport_rl_rt_init(p_hwfn, p_params->start_vport,
 717                                  p_params->num_vports, vport_params))
 718                 return -1;
 719
 720         return 0;
 721 }
 722
 723 int qed_init_pf_rl(struct qed_hwfn *p_hwfn,
 724                    struct qed_ptt *p_ptt,
 725                    u8 pf_id,
 726                    u32 pf_rl)
 727 {
 728         u32 inc_val = QM_RL_INC_VAL(pf_rl);
 729
 730         if (inc_val > QM_RL_MAX_INC_VAL) {
 731                 DP_NOTICE(p_hwfn, "Invalid PF rate limit configuration");
 732                 return -1;
 733         }
 734
 735         qed_wr(p_hwfn, p_ptt,
 736                QM_REG_RLPFCRD + pf_id * 4,
 737                QM_RL_CRD_REG_SIGN_BIT);
 738         qed_wr(p_hwfn, p_ptt, QM_REG_RLPFINCVAL + pf_id * 4, inc_val);
 739
 740         return 0;
 741 }
 742
 743 int qed_init_vport_rl(struct qed_hwfn *p_hwfn,
 744                       struct qed_ptt *p_ptt,
 745                       u8 vport_id,
 746                       u32 vport_rl)
 747 {
 748         u32 inc_val = QM_RL_INC_VAL(vport_rl);
 749
 750         if (inc_val > QM_RL_MAX_INC_VAL) {
 751                 DP_NOTICE(p_hwfn, "Invalid VPORT rate-limit configuration");
 752                 return -1;
 753         }
 754
 755         qed_wr(p_hwfn, p_ptt,
 756                QM_REG_RLGLBLCRD + vport_id * 4,
 757                QM_RL_CRD_REG_SIGN_BIT);
 758         qed_wr(p_hwfn, p_ptt, QM_REG_RLGLBLINCVAL + vport_id * 4, inc_val);
 759
 760         return 0;
 761 }
 762
 763 bool qed_send_qm_stop_cmd(struct qed_hwfn *p_hwfn,
 764                           struct qed_ptt *p_ptt,
 765                           bool is_release_cmd,
 766                           bool is_tx_pq,
 767                           u16 start_pq,
 768                           u16 num_pqs)
 769 {
 770         u32 cmd_arr[QM_CMD_STRUCT_SIZE(QM_STOP_CMD)] = { 0 };
 771         u32 pq_mask = 0, last_pq = start_pq + num_pqs - 1, pq_id;
 772
 773         /* set command's PQ type */
 774         QM_CMD_SET_FIELD(cmd_arr, QM_STOP_CMD, PQ_TYPE, is_tx_pq ? 0 : 1);
 775
 776         for (pq_id = start_pq; pq_id <= last_pq; pq_id++) {
 777                 /* set PQ bit in mask (stop command only) */
 778                 if (!is_release_cmd)
 779                         pq_mask |= (1 << (pq_id % QM_STOP_PQ_MASK_WIDTH));
 780
 781                 /* if last PQ or end of PQ mask, write command */
 782                 if ((pq_id == last_pq) ||
 783                     (pq_id % QM_STOP_PQ_MASK_WIDTH ==
 784                      (QM_STOP_PQ_MASK_WIDTH - 1))) {
 785                         QM_CMD_SET_FIELD(cmd_arr, QM_STOP_CMD,
 786                                          PAUSE_MASK, pq_mask);
 787                         QM_CMD_SET_FIELD(cmd_arr, QM_STOP_CMD,
 788                                          GROUP_ID,
 789                                          pq_id / QM_STOP_PQ_MASK_WIDTH);
 790                         if (!qed_send_qm_cmd(p_hwfn, p_ptt, QM_STOP_CMD_ADDR,
 791                                              cmd_arr[0], cmd_arr[1]))
 792                                 return false;
 793                         pq_mask = 0;
 794                 }
 795         }
 796
 797         return true;
 798 }