Re: [PATCH net-next 2/3] net: prestera: add counter HW API
From: Jakub Kicinski <kuba@kernel.org>
Date: 2021-11-25 03:18:56
Also in:
lkml
On Tue, 23 Nov 2021 18:58:01 +0200 Volodymyr Mytnyk wrote:
+ block = prestera_counter_block_lookup_not_full(counter, client);
+ if (!block) {if (block) return block;
+ block = kzalloc(sizeof(*block), GFP_KERNEL);
+ if (!block)
+ return ERR_PTR(-ENOMEM);
+
+ err = prestera_hw_counter_block_get(counter->sw, client,
+ &block->id, &block->offset,
+ &block->num_counters);
+ if (err)
+ goto err_block;
+
+ block->stats = kcalloc(block->num_counters,
+ sizeof(*block->stats), GFP_KERNEL);
+ if (!block->stats) {
+ err = -ENOMEM;
+ goto err_stats;
+ }
+
+ block->counter_flag = kcalloc(block->num_counters,
+ sizeof(*block->counter_flag),
+ GFP_KERNEL);
+ if (!block->counter_flag) {
+ err = -ENOMEM;
+ goto err_flag;
+ }
+
+ block->client = client;
+ mutex_init(&block->mtx);
+ refcount_set(&block->refcnt, 1);
+ idr_init_base(&block->counter_idr, block->offset);
+
+ err = prestera_counter_block_list_add(counter, block);
+ if (err)
+ goto err_list_add;
+ }
+
+ return block;