drivers/common/cnxk/roc_nix_tm_ops.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2021 Marvell.
   3  */
   4
   5 #include "roc_api.h"
   6 #include "roc_priv.h"
   7
   8 int
   9 roc_nix_tm_sq_aura_fc(struct roc_nix_sq *sq, bool enable)
  10 {
  11         struct npa_aq_enq_req *req;
  12         struct npa_aq_enq_rsp *rsp;
  13         uint64_t aura_handle;
  14         struct npa_lf *lf;
  15         struct mbox *mbox;
  16         int rc = -ENOSPC;
  17
  18         plt_tm_dbg("Setting SQ %u SQB aura FC to %s", sq->qid,
  19                    enable ? "enable" : "disable");
  20
  21         lf = idev_npa_obj_get();
  22         if (!lf)
  23                 return NPA_ERR_DEVICE_NOT_BOUNDED;
  24
  25         mbox = lf->mbox;
  26         /* Set/clear sqb aura fc_ena */
  27         aura_handle = sq->aura_handle;
  28         req = mbox_alloc_msg_npa_aq_enq(mbox);
  29         if (req == NULL)
  30                 return rc;
  31
  32         req->aura_id = roc_npa_aura_handle_to_aura(aura_handle);
  33         req->ctype = NPA_AQ_CTYPE_AURA;
  34         req->op = NPA_AQ_INSTOP_WRITE;
  35         /* Below is not needed for aura writes but AF driver needs it */
  36         /* AF will translate to associated poolctx */
  37         req->aura.pool_addr = req->aura_id;
  38
  39         req->aura.fc_ena = enable;
  40         req->aura_mask.fc_ena = 1;
  41
  42         rc = mbox_process(mbox);
  43         if (rc)
  44                 return rc;
  45
  46         /* Read back npa aura ctx */
  47         req = mbox_alloc_msg_npa_aq_enq(mbox);
  48         if (req == NULL)
  49                 return -ENOSPC;
  50
  51         req->aura_id = roc_npa_aura_handle_to_aura(aura_handle);
  52         req->ctype = NPA_AQ_CTYPE_AURA;
  53         req->op = NPA_AQ_INSTOP_READ;
  54
  55         rc = mbox_process_msg(mbox, (void *)&rsp);
  56         if (rc)
  57                 return rc;
  58
  59         /* Init when enabled as there might be no triggers */
  60         if (enable)
  61                 *(volatile uint64_t *)sq->fc = rsp->aura.count;
  62         else
  63                 *(volatile uint64_t *)sq->fc = sq->nb_sqb_bufs;
  64         /* Sync write barrier */
  65         plt_wmb();
  66         return 0;
  67 }
  68
  69 int
  70 roc_nix_tm_free_resources(struct roc_nix *roc_nix, bool hw_only)
  71 {
  72         struct nix *nix = roc_nix_to_nix_priv(roc_nix);
  73
  74         if (nix->tm_flags & NIX_TM_HIERARCHY_ENA)
  75                 return -EBUSY;
  76
  77         return nix_tm_free_resources(roc_nix, BIT(ROC_NIX_TM_USER), hw_only);
  78 }
  79
  80 static int
  81 nix_tm_shaper_profile_add(struct roc_nix *roc_nix,
  82                           struct nix_tm_shaper_profile *profile, int skip_ins)
  83 {
  84         struct nix *nix = roc_nix_to_nix_priv(roc_nix);
  85         uint64_t commit_rate, commit_sz;
  86         uint64_t peak_rate, peak_sz;
  87         uint32_t id;
  88
  89         id = profile->id;
  90         commit_rate = profile->commit.rate;
  91         commit_sz = profile->commit.size;
  92         peak_rate = profile->peak.rate;
  93         peak_sz = profile->peak.size;
  94
  95         if (nix_tm_shaper_profile_search(nix, id) && !skip_ins)
  96                 return NIX_ERR_TM_SHAPER_PROFILE_EXISTS;
  97
  98         if (profile->pkt_len_adj < NIX_TM_LENGTH_ADJUST_MIN ||
  99             profile->pkt_len_adj > NIX_TM_LENGTH_ADJUST_MAX)
 100                 return NIX_ERR_TM_SHAPER_PKT_LEN_ADJUST;
 101
 102         /* We cannot support both pkt length adjust and pkt mode */
 103         if (profile->pkt_mode && profile->pkt_len_adj)
 104                 return NIX_ERR_TM_SHAPER_PKT_LEN_ADJUST;
 105
 106         /* commit rate and burst size can be enabled/disabled */
 107         if (commit_rate || commit_sz) {
 108                 if (commit_sz < NIX_TM_MIN_SHAPER_BURST ||
 109                     commit_sz > NIX_TM_MAX_SHAPER_BURST)
 110                         return NIX_ERR_TM_INVALID_COMMIT_SZ;
 111                 else if (!nix_tm_shaper_rate_conv(commit_rate, NULL, NULL,
 112                                                   NULL))
 113                         return NIX_ERR_TM_INVALID_COMMIT_RATE;
 114         }
 115
 116         /* Peak rate and burst size can be enabled/disabled */
 117         if (peak_sz || peak_rate) {
 118                 if (peak_sz < NIX_TM_MIN_SHAPER_BURST ||
 119                     peak_sz > NIX_TM_MAX_SHAPER_BURST)
 120                         return NIX_ERR_TM_INVALID_PEAK_SZ;
 121                 else if (!nix_tm_shaper_rate_conv(peak_rate, NULL, NULL, NULL))
 122                         return NIX_ERR_TM_INVALID_PEAK_RATE;
 123         }
 124
 125         if (!skip_ins)
 126                 TAILQ_INSERT_TAIL(&nix->shaper_profile_list, profile, shaper);
 127
 128         plt_tm_dbg("Added TM shaper profile %u, "
 129                    " pir %" PRIu64 " , pbs %" PRIu64 ", cir %" PRIu64
 130                    ", cbs %" PRIu64 " , adj %u, pkt_mode %u",
 131                    id, profile->peak.rate, profile->peak.size,
 132                    profile->commit.rate, profile->commit.size,
 133                    profile->pkt_len_adj, profile->pkt_mode);
 134
 135         /* Always use PIR for single rate shaping */
 136         if (!peak_rate && commit_rate) {
 137                 profile->peak.rate = profile->commit.rate;
 138                 profile->peak.size = profile->commit.size;
 139                 profile->commit.rate = 0;
 140                 profile->commit.size = 0;
 141         }
 142
 143         /* update min rate */
 144         nix->tm_rate_min = nix_tm_shaper_profile_rate_min(nix);
 145         return 0;
 146 }
 147
 148 int
 149 roc_nix_tm_shaper_profile_add(struct roc_nix *roc_nix,
 150                               struct roc_nix_tm_shaper_profile *roc_profile)
 151 {
 152         struct nix_tm_shaper_profile *profile;
 153
 154         profile = (struct nix_tm_shaper_profile *)roc_profile->reserved;
 155
 156         profile->ref_cnt = 0;
 157         profile->id = roc_profile->id;
 158         if (roc_profile->pkt_mode) {
 159                 /* Each packet accomulate single count, whereas HW
 160                  * considers each unit as Byte, so we need convert
 161                  * user pps to bps
 162                  */
 163                 profile->commit.rate = roc_profile->commit_rate * 8;
 164                 profile->peak.rate = roc_profile->peak_rate * 8;
 165         } else {
 166                 profile->commit.rate = roc_profile->commit_rate;
 167                 profile->peak.rate = roc_profile->peak_rate;
 168         }
 169         profile->commit.size = roc_profile->commit_sz;
 170         profile->peak.size = roc_profile->peak_sz;
 171         profile->pkt_len_adj = roc_profile->pkt_len_adj;
 172         profile->pkt_mode = roc_profile->pkt_mode;
 173         profile->free_fn = roc_profile->free_fn;
 174
 175         return nix_tm_shaper_profile_add(roc_nix, profile, 0);
 176 }
 177
 178 int
 179 roc_nix_tm_shaper_profile_update(struct roc_nix *roc_nix,
 180                                  struct roc_nix_tm_shaper_profile *roc_profile)
 181 {
 182         struct nix_tm_shaper_profile *profile;
 183
 184         profile = (struct nix_tm_shaper_profile *)roc_profile->reserved;
 185
 186         if (roc_profile->pkt_mode) {
 187                 /* Each packet accomulate single count, whereas HW
 188                  * considers each unit as Byte, so we need convert
 189                  * user pps to bps
 190                  */
 191                 profile->commit.rate = roc_profile->commit_rate * 8;
 192                 profile->peak.rate = roc_profile->peak_rate * 8;
 193         } else {
 194                 profile->commit.rate = roc_profile->commit_rate;
 195                 profile->peak.rate = roc_profile->peak_rate;
 196         }
 197         profile->commit.size = roc_profile->commit_sz;
 198         profile->peak.size = roc_profile->peak_sz;
 199
 200         return nix_tm_shaper_profile_add(roc_nix, profile, 1);
 201 }
 202
 203 int
 204 roc_nix_tm_shaper_profile_delete(struct roc_nix *roc_nix, uint32_t id)
 205 {
 206         struct nix *nix = roc_nix_to_nix_priv(roc_nix);
 207         struct nix_tm_shaper_profile *profile;
 208
 209         profile = nix_tm_shaper_profile_search(nix, id);
 210         if (!profile)
 211                 return NIX_ERR_TM_INVALID_SHAPER_PROFILE;
 212
 213         if (profile->ref_cnt)
 214                 return NIX_ERR_TM_SHAPER_PROFILE_IN_USE;
 215
 216         plt_tm_dbg("Removing TM shaper profile %u", id);
 217         TAILQ_REMOVE(&nix->shaper_profile_list, profile, shaper);
 218         nix_tm_shaper_profile_free(profile);
 219
 220         /* update min rate */
 221         nix->tm_rate_min = nix_tm_shaper_profile_rate_min(nix);
 222         return 0;
 223 }
 224
 225 int
 226 roc_nix_tm_node_add(struct roc_nix *roc_nix, struct roc_nix_tm_node *roc_node)
 227 {
 228         struct nix_tm_node *node;
 229
 230         node = (struct nix_tm_node *)&roc_node->reserved;
 231         node->id = roc_node->id;
 232         node->priority = roc_node->priority;
 233         node->weight = roc_node->weight;
 234         node->lvl = roc_node->lvl;
 235         node->parent_id = roc_node->parent_id;
 236         node->shaper_profile_id = roc_node->shaper_profile_id;
 237         node->pkt_mode = roc_node->pkt_mode;
 238         node->pkt_mode_set = roc_node->pkt_mode_set;
 239         node->free_fn = roc_node->free_fn;
 240         node->tree = ROC_NIX_TM_USER;
 241
 242         return nix_tm_node_add(roc_nix, node);
 243 }
 244
 245 int
 246 roc_nix_tm_node_pkt_mode_update(struct roc_nix *roc_nix, uint32_t node_id,
 247                                 bool pkt_mode)
 248 {
 249         struct nix *nix = roc_nix_to_nix_priv(roc_nix);
 250         struct nix_tm_node *node, *child;
 251         struct nix_tm_node_list *list;
 252         int num_children = 0;
 253
 254         node = nix_tm_node_search(nix, node_id, ROC_NIX_TM_USER);
 255         if (!node)
 256                 return NIX_ERR_TM_INVALID_NODE;
 257
 258         if (node->pkt_mode == pkt_mode) {
 259                 node->pkt_mode_set = true;
 260                 return 0;
 261         }
 262
 263         /* Check for any existing children, if there are any,
 264          * then we cannot update the pkt mode as children's quantum
 265          * are already taken in.
 266          */
 267         list = nix_tm_node_list(nix, ROC_NIX_TM_USER);
 268         TAILQ_FOREACH(child, list, node) {
 269                 if (child->parent == node)
 270                         num_children++;
 271         }
 272
 273         /* Cannot update mode if it has children or tree is enabled */
 274         if ((nix->tm_flags & NIX_TM_HIERARCHY_ENA) && num_children)
 275                 return -EBUSY;
 276
 277         if (node->pkt_mode_set && num_children)
 278                 return NIX_ERR_TM_PKT_MODE_MISMATCH;
 279
 280         node->pkt_mode = pkt_mode;
 281         node->pkt_mode_set = true;
 282
 283         return 0;
 284 }
 285
 286 int
 287 roc_nix_tm_node_name_get(struct roc_nix *roc_nix, uint32_t node_id, char *buf,
 288                          size_t buflen)
 289 {
 290         struct nix *nix = roc_nix_to_nix_priv(roc_nix);
 291         struct nix_tm_node *node;
 292
 293         node = nix_tm_node_search(nix, node_id, ROC_NIX_TM_USER);
 294         if (!node) {
 295                 plt_strlcpy(buf, "???", buflen);
 296                 return NIX_ERR_TM_INVALID_NODE;
 297         }
 298
 299         if (node->hw_lvl == NIX_TXSCH_LVL_CNT)
 300                 snprintf(buf, buflen, "SQ_%d", node->id);
 301         else
 302                 snprintf(buf, buflen, "%s_%d", nix_tm_hwlvl2str(node->hw_lvl),
 303                          node->hw_id);
 304         return 0;
 305 }
 306
 307 int
 308 roc_nix_tm_node_delete(struct roc_nix *roc_nix, uint32_t node_id, bool free)
 309 {
 310         return nix_tm_node_delete(roc_nix, node_id, ROC_NIX_TM_USER, free);
 311 }