target/linux/layerscape/patches-5.4/701-net-0051-sdk_dpaa-ceetm-use-the-tcf-block-infrastructure.patch

   1 From ae72322610af7eb13fc9a67567fdac610d3d3d3d Mon Sep 17 00:00:00 2001
   2 From: Camelia Groza <camelia.groza@nxp.com>
   3 Date: Wed, 17 Jan 2018 16:44:19 +0200
   4 Subject: [PATCH] sdk_dpaa: ceetm: use the tcf block infrastructure
   5
   6 Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
   7 ---
   8  .../ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c   | 31 +++++++++++++++-------
   9  .../ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.h   |  2 ++
  10  2 files changed, 24 insertions(+), 9 deletions(-)
  11
  12 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c
  13 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c
  14 @@ -423,7 +423,7 @@ static void ceetm_cls_destroy(struct Qdi
  15                         free_percpu(cl->wbfs.cstats);
  16         }
  17
  18 -       tcf_destroy_chain(&cl->filter_list);
  19 +       tcf_block_put(cl->block);
  20         kfree(cl);
  21  }
  22
  23 @@ -440,11 +440,13 @@ static void ceetm_destroy(struct Qdisc *
  24                  __func__, sch->handle);
  25
  26         /* All filters need to be removed before destroying the classes */
  27 -       tcf_destroy_chain(&priv->filter_list);
  28 +       tcf_block_put(priv->block);
  29
  30         for (i = 0; i < priv->clhash.hashsize; i++) {
  31 -               hlist_for_each_entry(cl, &priv->clhash.hash[i], common.hnode)
  32 -                       tcf_destroy_chain(&cl->filter_list);
  33 +               hlist_for_each_entry(cl, &priv->clhash.hash[i], common.hnode) {
  34 +                       tcf_block_put(cl->block);
  35 +                       cl->block = NULL;
  36 +               }
  37         }
  38
  39         for (i = 0; i < priv->clhash.hashsize; i++) {
  40 @@ -594,7 +596,7 @@ static int ceetm_init_root(struct Qdisc
  41         /* Validate inputs */
  42         if (sch->parent != TC_H_ROOT) {
  43                 pr_err("CEETM: a root ceetm qdisc can not be attached to a class\n");
  44 -               tcf_destroy_chain(&priv->filter_list);
  45 +               tcf_block_put(priv->block);
  46                 qdisc_class_hash_destroy(&priv->clhash);
  47                 return -EINVAL;
  48         }
  49 @@ -1053,6 +1055,10 @@ static int ceetm_init(struct Qdisc *sch,
  50                 return -EINVAL;
  51         }
  52
  53 +       ret = tcf_block_get(&priv->block, &priv->filter_list);
  54 +       if (ret)
  55 +               return ret;
  56 +
  57         ret = nla_parse_nested(tb, TCA_CEETM_QOPS, opt, ceetm_policy, NULL);
  58         if (ret < 0) {
  59                 pr_err(KBUILD_BASENAME " : %s : tc error\n", __func__);
  60 @@ -1521,6 +1527,12 @@ static int ceetm_cls_change(struct Qdisc
  61         if (!cl)
  62                 return -ENOMEM;
  63
  64 +       err = tcf_block_get(&cl->block, &cl->filter_list);
  65 +       if (err) {
  66 +               kfree(cl);
  67 +               return err;
  68 +       }
  69 +
  70         cl->type = copt->type;
  71         cl->shaped = copt->shaped;
  72         cl->root.rate = copt->rate;
  73 @@ -1585,6 +1597,7 @@ channel_err:
  74                 pr_err(KBUILD_BASENAME " : %s : failed to release the channel %d\n",
  75                        __func__, channel->idx);
  76  claim_err:
  77 +       tcf_block_put(cl->block);
  78         kfree(cl);
  79         return err;
  80  }
  81 @@ -1779,15 +1792,15 @@ static int ceetm_cls_dump_stats(struct Q
  82         return gnet_stats_copy_app(d, &xstats, sizeof(xstats));
  83  }
  84
  85 -static struct tcf_proto **ceetm_tcf_chain(struct Qdisc *sch, unsigned long arg)
  86 +static struct tcf_block *ceetm_tcf_block(struct Qdisc *sch, unsigned long arg)
  87  {
  88         struct ceetm_qdisc *priv = qdisc_priv(sch);
  89         struct ceetm_class *cl = (struct ceetm_class *)arg;
  90 -       struct tcf_proto **fl = cl ? &cl->filter_list : &priv->filter_list;
  91 +       struct tcf_block *block = cl ? cl->block : priv->block;
  92
  93         pr_debug(KBUILD_BASENAME " : %s : class %X under qdisc %X\n", __func__,
  94                  cl ? cl->common.classid : 0, sch->handle);
  95 -       return fl;
  96 +       return block;
  97  }
  98
  99  static unsigned long ceetm_tcf_bind(struct Qdisc *sch, unsigned long parent,
 100 @@ -1816,7 +1829,7 @@ const struct Qdisc_class_ops ceetm_cls_o
 101         .change         =       ceetm_cls_change,
 102         .delete         =       ceetm_cls_delete,
 103         .walk           =       ceetm_cls_walk,
 104 -       .tcf_chain      =       ceetm_tcf_chain,
 105 +       .tcf_block      =       ceetm_tcf_block,
 106         .bind_tcf       =       ceetm_tcf_bind,
 107         .unbind_tcf     =       ceetm_tcf_unbind,
 108         .dump           =       ceetm_cls_dump,
 109 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.h
 110 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.h
 111 @@ -141,6 +141,7 @@ struct ceetm_qdisc {
 112         };
 113         struct Qdisc_class_hash clhash;
 114         struct tcf_proto *filter_list; /* qdisc attached filters */
 115 +       struct tcf_block *block;
 116  };
 117
 118  /* CEETM Qdisc configuration parameters */
 119 @@ -192,6 +193,7 @@ struct ceetm_class {
 120         struct Qdisc_class_common common;
 121         int refcnt; /* usage count of this class */
 122         struct tcf_proto *filter_list; /* class attached filters */
 123 +       struct tcf_block *block;
 124         struct Qdisc *parent;
 125         bool shaped;
 126         int type; /* ROOT/PRIO/WBFS */