struct mlxsw_sp_acl_tcam_group {
struct mlxsw_sp_acl_tcam *tcam;
u16 id;
- struct list_head region_list;
+ struct list_head vregion_list;
unsigned int region_count;
struct rhashtable chunk_ht;
struct mlxsw_sp_acl_tcam_group_ops *ops;
struct mlxsw_afk_element_usage tmplt_elusage;
};
+struct mlxsw_sp_acl_tcam_vregion {
+ struct mlxsw_sp_acl_tcam_region *region;
+ struct list_head list; /* Member of a TCAM group */
+ struct list_head chunk_list; /* List of chunks under this vregion */
+ struct mlxsw_sp_acl_tcam_group *group;
+ struct mlxsw_afk_key_info *key_info;
+};
+
struct mlxsw_sp_acl_tcam_chunk {
- struct list_head list; /* Member of a TCAM region */
+ struct list_head list; /* Member of a TCAM vregion */
struct rhash_head ht_node; /* Member of a chunk HT */
- unsigned int priority; /* Priority within the region and group */
+ unsigned int priority; /* Priority within the vregion and group */
struct mlxsw_sp_acl_tcam_group *group;
- struct mlxsw_sp_acl_tcam_region *region;
+ struct mlxsw_sp_acl_tcam_vregion *vregion;
unsigned int ref_count;
unsigned long priv[0];
/* priv has to be always the last item */
static int mlxsw_sp_acl_tcam_group_update(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_tcam_group *group)
{
- struct mlxsw_sp_acl_tcam_region *region;
+ struct mlxsw_sp_acl_tcam_vregion *vregion;
char pagt_pl[MLXSW_REG_PAGT_LEN];
int acl_index = 0;
mlxsw_reg_pagt_pack(pagt_pl, group->id);
- list_for_each_entry(region, &group->region_list, list)
- mlxsw_reg_pagt_acl_id_pack(pagt_pl, acl_index++, region->id);
+ list_for_each_entry(vregion, &group->vregion_list, list)
+ mlxsw_reg_pagt_acl_id_pack(pagt_pl, acl_index++,
+ vregion->region->id);
mlxsw_reg_pagt_size_set(pagt_pl, acl_index);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pagt), pagt_pl);
}
memcpy(&group->tmplt_elusage, tmplt_elusage,
sizeof(group->tmplt_elusage));
}
- INIT_LIST_HEAD(&group->region_list);
+ INIT_LIST_HEAD(&group->vregion_list);
err = mlxsw_sp_acl_tcam_group_id_get(tcam, &group->id);
if (err)
return err;
rhashtable_destroy(&group->chunk_ht);
mlxsw_sp_acl_tcam_group_id_put(tcam, group->id);
- WARN_ON(!list_empty(&group->region_list));
+ WARN_ON(!list_empty(&group->vregion_list));
}
static int
}
static unsigned int
-mlxsw_sp_acl_tcam_region_prio(struct mlxsw_sp_acl_tcam_region *region)
+mlxsw_sp_acl_tcam_vregion_prio(struct mlxsw_sp_acl_tcam_vregion *vregion)
{
struct mlxsw_sp_acl_tcam_chunk *chunk;
- if (list_empty(®ion->chunk_list))
+ if (list_empty(&vregion->chunk_list))
return 0;
- /* As a priority of a region, return priority of the first chunk */
- chunk = list_first_entry(®ion->chunk_list, typeof(*chunk), list);
+ /* As a priority of a vregion, return priority of the first chunk */
+ chunk = list_first_entry(&vregion->chunk_list,
+ typeof(*chunk), list);
return chunk->priority;
}
static unsigned int
-mlxsw_sp_acl_tcam_region_max_prio(struct mlxsw_sp_acl_tcam_region *region)
+mlxsw_sp_acl_tcam_vregion_max_prio(struct mlxsw_sp_acl_tcam_vregion *vregion)
{
struct mlxsw_sp_acl_tcam_chunk *chunk;
- if (list_empty(®ion->chunk_list))
+ if (list_empty(&vregion->chunk_list))
return 0;
- chunk = list_last_entry(®ion->chunk_list, typeof(*chunk), list);
+ chunk = list_last_entry(&vregion->chunk_list,
+ typeof(*chunk), list);
return chunk->priority;
}
-static void
-mlxsw_sp_acl_tcam_group_list_add(struct mlxsw_sp_acl_tcam_group *group,
- struct mlxsw_sp_acl_tcam_region *region)
+static int
+mlxsw_sp_acl_tcam_group_region_attach(struct mlxsw_sp *mlxsw_sp,
+ struct mlxsw_sp_acl_tcam_region *region)
{
- struct mlxsw_sp_acl_tcam_region *region2;
- struct list_head *pos;
+ struct mlxsw_sp_acl_tcam_group *group = region->vregion->group;
+ int err;
+
+ if (group->region_count == group->tcam->max_group_size)
+ return -ENOBUFS;
+
+ err = mlxsw_sp_acl_tcam_group_update(mlxsw_sp, group);
+ if (err)
+ return err;
- /* Position the region inside the list according to priority */
- list_for_each(pos, &group->region_list) {
- region2 = list_entry(pos, typeof(*region2), list);
- if (mlxsw_sp_acl_tcam_region_prio(region2) >
- mlxsw_sp_acl_tcam_region_prio(region))
- break;
- }
- list_add_tail(®ion->list, pos);
group->region_count++;
+ return 0;
}
static void
-mlxsw_sp_acl_tcam_group_list_del(struct mlxsw_sp_acl_tcam_group *group,
- struct mlxsw_sp_acl_tcam_region *region)
+mlxsw_sp_acl_tcam_group_region_detach(struct mlxsw_sp *mlxsw_sp,
+ struct mlxsw_sp_acl_tcam_region *region)
{
+ struct mlxsw_sp_acl_tcam_group *group = region->vregion->group;
+
group->region_count--;
- list_del(®ion->list);
+ mlxsw_sp_acl_tcam_group_update(mlxsw_sp, group);
}
static int
-mlxsw_sp_acl_tcam_group_region_attach(struct mlxsw_sp *mlxsw_sp,
- struct mlxsw_sp_acl_tcam_group *group,
- struct mlxsw_sp_acl_tcam_region *region)
+mlxsw_sp_acl_tcam_group_vregion_attach(struct mlxsw_sp *mlxsw_sp,
+ struct mlxsw_sp_acl_tcam_group *group,
+ struct mlxsw_sp_acl_tcam_vregion *vregion)
{
+ struct mlxsw_sp_acl_tcam_vregion *vregion2;
+ struct list_head *pos;
int err;
- if (group->region_count == group->tcam->max_group_size)
- return -ENOBUFS;
-
- mlxsw_sp_acl_tcam_group_list_add(group, region);
+ /* Position the vregion inside the list according to priority */
+ list_for_each(pos, &group->vregion_list) {
+ vregion2 = list_entry(pos, typeof(*vregion2), list);
+ if (mlxsw_sp_acl_tcam_vregion_prio(vregion2) >
+ mlxsw_sp_acl_tcam_vregion_prio(vregion))
+ break;
+ }
+ list_add_tail(&vregion->list, pos);
+ vregion->group = group;
- err = mlxsw_sp_acl_tcam_group_update(mlxsw_sp, group);
+ err = mlxsw_sp_acl_tcam_group_region_attach(mlxsw_sp, vregion->region);
if (err)
- goto err_group_update;
- region->group = group;
+ goto err_region_attach;
return 0;
-err_group_update:
- mlxsw_sp_acl_tcam_group_list_del(group, region);
- mlxsw_sp_acl_tcam_group_update(mlxsw_sp, group);
+err_region_attach:
+ list_del(&vregion->list);
return err;
}
static void
-mlxsw_sp_acl_tcam_group_region_detach(struct mlxsw_sp *mlxsw_sp,
- struct mlxsw_sp_acl_tcam_region *region)
+mlxsw_sp_acl_tcam_group_vregion_detach(struct mlxsw_sp *mlxsw_sp,
+ struct mlxsw_sp_acl_tcam_vregion *vregion)
{
- struct mlxsw_sp_acl_tcam_group *group = region->group;
-
- mlxsw_sp_acl_tcam_group_list_del(group, region);
- mlxsw_sp_acl_tcam_group_update(mlxsw_sp, group);
+ list_del(&vregion->list);
+ mlxsw_sp_acl_tcam_group_region_detach(mlxsw_sp, vregion->region);
}
-static struct mlxsw_sp_acl_tcam_region *
-mlxsw_sp_acl_tcam_group_region_find(struct mlxsw_sp_acl_tcam_group *group,
- unsigned int priority,
- struct mlxsw_afk_element_usage *elusage,
- bool *p_need_split)
+static struct mlxsw_sp_acl_tcam_vregion *
+mlxsw_sp_acl_tcam_group_vregion_find(struct mlxsw_sp_acl_tcam_group *group,
+ unsigned int priority,
+ struct mlxsw_afk_element_usage *elusage,
+ bool *p_need_split)
{
- struct mlxsw_sp_acl_tcam_region *region, *region2;
+ struct mlxsw_sp_acl_tcam_vregion *vregion, *vregion2;
struct list_head *pos;
bool issubset;
- list_for_each(pos, &group->region_list) {
- region = list_entry(pos, typeof(*region), list);
+ list_for_each(pos, &group->vregion_list) {
+ vregion = list_entry(pos, typeof(*vregion), list);
/* First, check if the requested priority does not rather belong
- * under some of the next regions.
+ * under some of the next vregions.
*/
- if (pos->next != &group->region_list) { /* not last */
- region2 = list_entry(pos->next, typeof(*region2), list);
- if (priority >= mlxsw_sp_acl_tcam_region_prio(region2))
+ if (pos->next != &group->vregion_list) { /* not last */
+ vregion2 = list_entry(pos->next, typeof(*vregion2),
+ list);
+ if (priority >=
+ mlxsw_sp_acl_tcam_vregion_prio(vregion2))
continue;
}
- issubset = mlxsw_afk_key_info_subset(region->key_info, elusage);
+ issubset = mlxsw_afk_key_info_subset(vregion->key_info,
+ elusage);
/* If requested element usage would not fit and the priority
- * is lower than the currently inspected region we cannot
- * use this region, so return NULL to indicate new region has
+ * is lower than the currently inspected vregion we cannot
+ * use this region, so return NULL to indicate new vregion has
* to be created.
*/
if (!issubset &&
- priority < mlxsw_sp_acl_tcam_region_prio(region))
+ priority < mlxsw_sp_acl_tcam_vregion_prio(vregion))
return NULL;
/* If requested element usage would not fit and the priority
- * is higher than the currently inspected region we cannot
- * use this region. There is still some hope that the next
- * region would be the fit. So let it be processed and
+ * is higher than the currently inspected vregion we cannot
+ * use this vregion. There is still some hope that the next
+ * vregion would be the fit. So let it be processed and
* eventually break at the check right above this.
*/
if (!issubset &&
- priority > mlxsw_sp_acl_tcam_region_max_prio(region))
+ priority > mlxsw_sp_acl_tcam_vregion_max_prio(vregion))
continue;
- /* Indicate if the region needs to be split in order to add
+ /* Indicate if the vregion needs to be split in order to add
* the requested priority. Split is needed when requested
- * element usage won't fit into the found region.
+ * element usage won't fit into the found vregion.
*/
*p_need_split = !issubset;
- return region;
+ return vregion;
}
- return NULL; /* New region has to be created. */
+ return NULL; /* New vregion has to be created. */
}
static void
static struct mlxsw_sp_acl_tcam_region *
mlxsw_sp_acl_tcam_region_create(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_tcam *tcam,
- struct mlxsw_afk_element_usage *elusage)
+ struct mlxsw_sp_acl_tcam_vregion *vregion)
{
const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops;
- struct mlxsw_afk *afk = mlxsw_sp_acl_afk(mlxsw_sp->acl);
struct mlxsw_sp_acl_tcam_region *region;
int err;
region = kzalloc(sizeof(*region) + ops->region_priv_size, GFP_KERNEL);
if (!region)
return ERR_PTR(-ENOMEM);
- INIT_LIST_HEAD(®ion->chunk_list);
region->mlxsw_sp = mlxsw_sp;
-
- region->key_info = mlxsw_afk_key_info_get(afk, elusage);
- if (IS_ERR(region->key_info)) {
- err = PTR_ERR(region->key_info);
- goto err_key_info_get;
- }
+ region->vregion = vregion;
+ region->key_info = vregion->key_info;
err = mlxsw_sp_acl_tcam_region_id_get(tcam, ®ion->id);
if (err)
err_tcam_region_associate:
mlxsw_sp_acl_tcam_region_id_put(tcam, region->id);
err_region_id_get:
- mlxsw_afk_key_info_put(region->key_info);
-err_key_info_get:
kfree(region);
return ERR_PTR(err);
}
ops->region_fini(mlxsw_sp, region->priv);
mlxsw_sp_acl_tcam_region_disable(mlxsw_sp, region);
mlxsw_sp_acl_tcam_region_free(mlxsw_sp, region);
- mlxsw_sp_acl_tcam_region_id_put(region->group->tcam, region->id);
- mlxsw_afk_key_info_put(region->key_info);
+ mlxsw_sp_acl_tcam_region_id_put(region->vregion->group->tcam,
+ region->id);
kfree(region);
}
+static struct mlxsw_sp_acl_tcam_vregion *
+mlxsw_sp_acl_tcam_vregion_create(struct mlxsw_sp *mlxsw_sp,
+ struct mlxsw_sp_acl_tcam *tcam,
+ struct mlxsw_afk_element_usage *elusage)
+{
+ struct mlxsw_afk *afk = mlxsw_sp_acl_afk(mlxsw_sp->acl);
+ struct mlxsw_sp_acl_tcam_vregion *vregion;
+ int err;
+
+ vregion = kzalloc(sizeof(*vregion), GFP_KERNEL);
+ if (!vregion)
+ return ERR_PTR(-ENOMEM);
+ INIT_LIST_HEAD(&vregion->chunk_list);
+
+ vregion->key_info = mlxsw_afk_key_info_get(afk, elusage);
+ if (IS_ERR(vregion->key_info)) {
+ err = PTR_ERR(vregion->key_info);
+ goto err_key_info_get;
+ }
+
+ vregion->region = mlxsw_sp_acl_tcam_region_create(mlxsw_sp, tcam,
+ vregion);
+ if (IS_ERR(vregion->region)) {
+ err = PTR_ERR(vregion->region);
+ goto err_region_create;
+ }
+
+ return vregion;
+
+err_region_create:
+ mlxsw_afk_key_info_put(vregion->key_info);
+err_key_info_get:
+ kfree(vregion);
+ return ERR_PTR(err);
+}
+
+static void
+mlxsw_sp_acl_tcam_vregion_destroy(struct mlxsw_sp *mlxsw_sp,
+ struct mlxsw_sp_acl_tcam_vregion *vregion)
+{
+ mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, vregion->region);
+ mlxsw_afk_key_info_put(vregion->key_info);
+ kfree(vregion);
+}
+
static int
mlxsw_sp_acl_tcam_chunk_assoc(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_tcam_group *group,
struct mlxsw_afk_element_usage *elusage,
struct mlxsw_sp_acl_tcam_chunk *chunk)
{
- struct mlxsw_sp_acl_tcam_region *region;
- bool region_created = false;
+ struct mlxsw_sp_acl_tcam_vregion *vregion;
+ bool vregion_created = false;
bool need_split;
int err;
- region = mlxsw_sp_acl_tcam_group_region_find(group, priority, elusage,
- &need_split);
- if (region && need_split) {
+ vregion = mlxsw_sp_acl_tcam_group_vregion_find(group, priority, elusage,
+ &need_split);
+ if (vregion && need_split) {
/* According to priority, the chunk should belong to an
- * existing region. However, this chunk needs elements
- * that region does not contain. We need to split the existing
- * region into two and create a new region for this chunk
+ * existing vregion. However, this chunk needs elements
+ * that vregion does not contain. We need to split the existing
+ * vregion into two and create a new vregion for this chunk
* in between. This is not supported now.
*/
return -EOPNOTSUPP;
}
- if (!region) {
- struct mlxsw_afk_element_usage region_elusage;
+ if (!vregion) {
+ struct mlxsw_afk_element_usage vregion_elusage;
mlxsw_sp_acl_tcam_group_use_patterns(group, elusage,
- ®ion_elusage);
- region = mlxsw_sp_acl_tcam_region_create(mlxsw_sp, group->tcam,
- ®ion_elusage);
- if (IS_ERR(region))
- return PTR_ERR(region);
- region_created = true;
+ &vregion_elusage);
+ vregion = mlxsw_sp_acl_tcam_vregion_create(mlxsw_sp,
+ group->tcam,
+ &vregion_elusage);
+ if (IS_ERR(vregion))
+ return PTR_ERR(vregion);
+ vregion_created = true;
}
- chunk->region = region;
- list_add_tail(&chunk->list, ®ion->chunk_list);
+ chunk->vregion = vregion;
+ list_add_tail(&chunk->list, &vregion->chunk_list);
- if (!region_created)
+ if (!vregion_created)
return 0;
- err = mlxsw_sp_acl_tcam_group_region_attach(mlxsw_sp, group, region);
+ err = mlxsw_sp_acl_tcam_group_vregion_attach(mlxsw_sp, group, vregion);
if (err)
- goto err_group_region_attach;
+ goto err_group_vregion_attach;
return 0;
-err_group_region_attach:
- mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, region);
+err_group_vregion_attach:
+ mlxsw_sp_acl_tcam_vregion_destroy(mlxsw_sp, vregion);
return err;
}
mlxsw_sp_acl_tcam_chunk_deassoc(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_tcam_chunk *chunk)
{
- struct mlxsw_sp_acl_tcam_region *region = chunk->region;
+ struct mlxsw_sp_acl_tcam_vregion *vregion = chunk->vregion;
list_del(&chunk->list);
- if (list_empty(®ion->chunk_list)) {
- mlxsw_sp_acl_tcam_group_region_detach(mlxsw_sp, region);
- mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, region);
+ if (list_empty(&vregion->chunk_list)) {
+ mlxsw_sp_acl_tcam_group_vregion_detach(mlxsw_sp, vregion);
+ mlxsw_sp_acl_tcam_vregion_destroy(mlxsw_sp, vregion);
}
}
if (err)
goto err_chunk_assoc;
- ops->chunk_init(chunk->region->priv, chunk->priv, priority);
+ ops->chunk_init(chunk->vregion->region->priv, chunk->priv, priority);
err = rhashtable_insert_fast(&group->chunk_ht, &chunk->ht_node,
mlxsw_sp_acl_tcam_chunk_ht_params);
chunk = rhashtable_lookup_fast(&group->chunk_ht, &priority,
mlxsw_sp_acl_tcam_chunk_ht_params);
if (chunk) {
- if (WARN_ON(!mlxsw_afk_key_info_subset(chunk->region->key_info,
+ if (WARN_ON(!mlxsw_afk_key_info_subset(chunk->vregion->key_info,
elusage)))
return ERR_PTR(-EINVAL);
chunk->ref_count++;
if (IS_ERR(chunk))
return PTR_ERR(chunk);
- region = chunk->region;
+ region = chunk->vregion->region;
err = ops->entry_add(mlxsw_sp, region->priv, chunk->priv,
entry->priv, rulei);
{
const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops;
struct mlxsw_sp_acl_tcam_chunk *chunk = entry->chunk;
- struct mlxsw_sp_acl_tcam_region *region = chunk->region;
+ struct mlxsw_sp_acl_tcam_region *region = chunk->vregion->region;
ops->entry_del(mlxsw_sp, region->priv, chunk->priv, entry->priv);
mlxsw_sp_acl_tcam_chunk_put(mlxsw_sp, chunk);
{
const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops;
struct mlxsw_sp_acl_tcam_chunk *chunk = entry->chunk;
- struct mlxsw_sp_acl_tcam_region *region = chunk->region;
+ struct mlxsw_sp_acl_tcam_region *region = chunk->vregion->region;
return ops->entry_action_replace(mlxsw_sp, region->priv,
entry->priv, rulei);
{
const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops;
struct mlxsw_sp_acl_tcam_chunk *chunk = entry->chunk;
- struct mlxsw_sp_acl_tcam_region *region = chunk->region;
+ struct mlxsw_sp_acl_tcam_region *region = chunk->vregion->region;
return ops->entry_activity_get(mlxsw_sp, region->priv,
entry->priv, activity);