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net: hns3: debugfs add support dumping page pool info 

Add a file node "page_pool_info" for debugfs, then cat this
file node to dump page pool info as below:

QUEUE_ID  ALLOCATE_CNT  FREE_CNT      POOL_SIZE(PAGE_NUM)  ORDER  NUMA_ID  MAX_LEN
0         512           0             512                  0      2        4K
1         512           0             512                  0      2        4K
2         512           0             512                  0      2        4K
3         512           0             512                  0      2        4K
4         512           0             512                  0      2        4K

Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hao Chen 2021-10-11 22:46:08 +08:00 committed by David S. Miller
parent 25b90c1910
commit 850bfb912a
2 changed files with 75 additions and 0 deletions
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1
drivers/net/ethernet/hisilicon/hns3/hnae3.h
View File

@ -298,6 +298,7 @@ enum hnae3_dbg_cmd {
HNAE3_DBG_CMD_MAC_TNL_STATUS,
HNAE3_DBG_CMD_SERV_INFO,
HNAE3_DBG_CMD_UMV_INFO,
HNAE3_DBG_CMD_PAGE_POOL_INFO,
HNAE3_DBG_CMD_UNKNOWN,
};

74
drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
View File

@ -336,6 +336,13 @@ static struct hns3_dbg_cmd_info hns3_dbg_cmd[] = {
.buf_len = HNS3_DBG_READ_LEN,
.init = hns3_dbg_common_file_init,
},
{
.name = "page_pool_info",
.cmd = HNAE3_DBG_CMD_PAGE_POOL_INFO,
.dentry = HNS3_DBG_DENTRY_COMMON,
.buf_len = HNS3_DBG_READ_LEN,
.init = hns3_dbg_common_file_init,
},
};
static struct hns3_dbg_cap_info hns3_dbg_cap[] = {
@ -941,6 +948,69 @@ static int hns3_dbg_dev_info(struct hnae3_handle *h, char *buf, int len)
return 0;
}
static const struct hns3_dbg_item page_pool_info_items[] = {
{ "QUEUE_ID", 2 },
{ "ALLOCATE_CNT", 2 },
{ "FREE_CNT", 6 },
{ "POOL_SIZE(PAGE_NUM)", 2 },
{ "ORDER", 2 },
{ "NUMA_ID", 2 },
{ "MAX_LEN", 2 },
};
static void hns3_dump_page_pool_info(struct hns3_enet_ring *ring,
char **result, u32 index)
{
u32 j = 0;
sprintf(result[j++], "%u", index);
sprintf(result[j++], "%u", ring->page_pool->pages_state_hold_cnt);
sprintf(result[j++], "%u",
atomic_read(&ring->page_pool->pages_state_release_cnt));
sprintf(result[j++], "%u", ring->page_pool->p.pool_size);
sprintf(result[j++], "%u", ring->page_pool->p.order);
sprintf(result[j++], "%d", ring->page_pool->p.nid);
sprintf(result[j++], "%uK", ring->page_pool->p.max_len / 1024);
}
static int
hns3_dbg_page_pool_info(struct hnae3_handle *h, char *buf, int len)
{
char data_str[ARRAY_SIZE(page_pool_info_items)][HNS3_DBG_DATA_STR_LEN];
char *result[ARRAY_SIZE(page_pool_info_items)];
struct hns3_nic_priv *priv = h->priv;
char content[HNS3_DBG_INFO_LEN];
struct hns3_enet_ring *ring;
int pos = 0;
u32 i;
if (!priv->ring) {
dev_err(&h->pdev->dev, "priv->ring is NULL\n");
return -EFAULT;
}
for (i = 0; i < ARRAY_SIZE(page_pool_info_items); i++)
result[i] = &data_str[i][0];
hns3_dbg_fill_content(content, sizeof(content), page_pool_info_items,
NULL, ARRAY_SIZE(page_pool_info_items));
pos += scnprintf(buf + pos, len - pos, "%s", content);
for (i = 0; i < h->kinfo.num_tqps; i++) {
if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
return -EPERM;
ring = &priv->ring[(u32)(i + h->kinfo.num_tqps)];
hns3_dump_page_pool_info(ring, result, i);
hns3_dbg_fill_content(content, sizeof(content),
page_pool_info_items,
(const char **)result,
ARRAY_SIZE(page_pool_info_items));
pos += scnprintf(buf + pos, len - pos, "%s", content);
}
return 0;
}
static int hns3_dbg_get_cmd_index(struct hns3_dbg_data *dbg_data, u32 *index)
{
u32 i;
@ -982,6 +1052,10 @@ static const struct hns3_dbg_func hns3_dbg_cmd_func[] = {
.cmd = HNAE3_DBG_CMD_TX_QUEUE_INFO,
.dbg_dump = hns3_dbg_tx_queue_info,
},
{
.cmd = HNAE3_DBG_CMD_PAGE_POOL_INFO,
.dbg_dump = hns3_dbg_page_pool_info,
},
};
static int hns3_dbg_read_cmd(struct hns3_dbg_data *dbg_data,