From: Jian Shen This patch use seq_file for the following nodes: tx_bd_queue_*/rx_bd_queue_* Signed-off-by: Jian Shen Signed-off-by: Jijie Shao Reviewed-by: Andrew Lunn Acked-by: Arnd Bergmann --- ChangeLog: v1 -> v2: - Remove unused functions in advance to eliminate compilation warnings, suggested by Jakub Kicinski v1: https://lore.kernel.org/all/20250708130029.1310872-1-shaojijie@huawei.com/ --- .../ethernet/hisilicon/hns3/hns3_debugfs.c | 232 ++++++------------ 1 file changed, 74 insertions(+), 158 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c index f96c88eeff8c..bdc2319d9969 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c @@ -428,44 +428,6 @@ static const char * const dim_state_str[] = { "START", "IN_PROG", "APPLY" }; static const char * const dim_tune_stat_str[] = { "ON_TOP", "TIRED", "RIGHT", "LEFT" }; -static void hns3_dbg_fill_content(char *content, u16 len, - const struct hns3_dbg_item *items, - const char **result, u16 size) -{ -#define HNS3_DBG_LINE_END_LEN 2 - char *pos = content; - u16 item_len; - u16 i; - - if (!len) { - return; - } else if (len <= HNS3_DBG_LINE_END_LEN) { - *pos++ = '\0'; - return; - } - - memset(content, ' ', len); - len -= HNS3_DBG_LINE_END_LEN; - - for (i = 0; i < size; i++) { - item_len = strlen(items[i].name) + items[i].interval; - if (len < item_len) - break; - - if (result) { - if (item_len < strlen(result[i])) - break; - memcpy(pos, result[i], strlen(result[i])); - } else { - memcpy(pos, items[i].name, strlen(items[i].name)); - } - pos += item_len; - len -= item_len; - } - *pos++ = '\n'; - *pos++ = '\0'; -} - static void hns3_get_coal_info(struct hns3_enet_tqp_vector *tqp_vector, struct seq_file *s, int i, bool is_tx) { @@ -692,157 +654,100 @@ static int hns3_dbg_queue_map(struct seq_file *s, void *data) return 0; } -static const struct hns3_dbg_item rx_bd_info_items[] = { - { "BD_IDX", 3 }, - { "L234_INFO", 2 }, - { "PKT_LEN", 3 }, - { "SIZE", 4 }, - { "RSS_HASH", 4 }, - { "FD_ID", 2 }, - { "VLAN_TAG", 2 }, - { "O_DM_VLAN_ID_FB", 2 }, - { "OT_VLAN_TAG", 2 }, - { "BD_BASE_INFO", 2 }, - { "PTYPE", 2 }, - { "HW_CSUM", 2 }, -}; - static void hns3_dump_rx_bd_info(struct hns3_nic_priv *priv, - struct hns3_desc *desc, char **result, int idx) + struct hns3_desc *desc, struct seq_file *s, + int idx) { - unsigned int j = 0; - - sprintf(result[j++], "%d", idx); - sprintf(result[j++], "%#x", le32_to_cpu(desc->rx.l234_info)); - sprintf(result[j++], "%u", le16_to_cpu(desc->rx.pkt_len)); - sprintf(result[j++], "%u", le16_to_cpu(desc->rx.size)); - sprintf(result[j++], "%#x", le32_to_cpu(desc->rx.rss_hash)); - sprintf(result[j++], "%u", le16_to_cpu(desc->rx.fd_id)); - sprintf(result[j++], "%u", le16_to_cpu(desc->rx.vlan_tag)); - sprintf(result[j++], "%u", le16_to_cpu(desc->rx.o_dm_vlan_id_fb)); - sprintf(result[j++], "%u", le16_to_cpu(desc->rx.ot_vlan_tag)); - sprintf(result[j++], "%#x", le32_to_cpu(desc->rx.bd_base_info)); + seq_printf(s, "%-9d%#-11x%-10u%-8u%#-12x%-7u%-10u%-17u%-13u%#-14x", + idx, le32_to_cpu(desc->rx.l234_info), + le16_to_cpu(desc->rx.pkt_len), le16_to_cpu(desc->rx.size), + le32_to_cpu(desc->rx.rss_hash), le16_to_cpu(desc->rx.fd_id), + le16_to_cpu(desc->rx.vlan_tag), + le16_to_cpu(desc->rx.o_dm_vlan_id_fb), + le16_to_cpu(desc->rx.ot_vlan_tag), + le32_to_cpu(desc->rx.bd_base_info)); + if (test_bit(HNS3_NIC_STATE_RXD_ADV_LAYOUT_ENABLE, &priv->state)) { u32 ol_info = le32_to_cpu(desc->rx.ol_info); - sprintf(result[j++], "%5lu", hnae3_get_field(ol_info, - HNS3_RXD_PTYPE_M, - HNS3_RXD_PTYPE_S)); - sprintf(result[j++], "%7u", le16_to_cpu(desc->csum)); + seq_printf(s, "%-7lu%-9u\n", + hnae3_get_field(ol_info, HNS3_RXD_PTYPE_M, + HNS3_RXD_PTYPE_S), + le16_to_cpu(desc->csum)); } else { - sprintf(result[j++], "NA"); - sprintf(result[j++], "NA"); + seq_puts(s, "NA NA\n"); } } -static int hns3_dbg_rx_bd_info(struct hns3_dbg_data *d, char *buf, int len) +static int hns3_dbg_rx_bd_info(struct seq_file *s, void *private) { - char data_str[ARRAY_SIZE(rx_bd_info_items)][HNS3_DBG_DATA_STR_LEN]; - struct hns3_nic_priv *priv = d->handle->priv; - char *result[ARRAY_SIZE(rx_bd_info_items)]; - char content[HNS3_DBG_INFO_LEN]; + struct hns3_dbg_data *data = s->private; + struct hnae3_handle *h = data->handle; + struct hns3_nic_priv *priv = h->priv; struct hns3_enet_ring *ring; struct hns3_desc *desc; unsigned int i; - int pos = 0; - if (d->qid >= d->handle->kinfo.num_tqps) { - dev_err(&d->handle->pdev->dev, - "queue%u is not in use\n", d->qid); + if (data->qid >= h->kinfo.num_tqps) { + dev_err(&h->pdev->dev, "queue%u is not in use\n", data->qid); return -EINVAL; } - for (i = 0; i < ARRAY_SIZE(rx_bd_info_items); i++) - result[i] = &data_str[i][0]; - - pos += scnprintf(buf + pos, len - pos, - "Queue %u rx bd info:\n", d->qid); - hns3_dbg_fill_content(content, sizeof(content), rx_bd_info_items, - NULL, ARRAY_SIZE(rx_bd_info_items)); - pos += scnprintf(buf + pos, len - pos, "%s", content); + seq_printf(s, "Queue %u rx bd info:\n", data->qid); + seq_puts(s, "BD_IDX L234_INFO PKT_LEN SIZE "); + seq_puts(s, "RSS_HASH FD_ID VLAN_TAG O_DM_VLAN_ID_FB "); + seq_puts(s, "OT_VLAN_TAG BD_BASE_INFO PTYPE HW_CSUM\n"); - ring = &priv->ring[d->qid + d->handle->kinfo.num_tqps]; + ring = &priv->ring[data->qid + data->handle->kinfo.num_tqps]; for (i = 0; i < ring->desc_num; i++) { desc = &ring->desc[i]; - hns3_dump_rx_bd_info(priv, desc, result, i); - hns3_dbg_fill_content(content, sizeof(content), - rx_bd_info_items, (const char **)result, - ARRAY_SIZE(rx_bd_info_items)); - pos += scnprintf(buf + pos, len - pos, "%s", content); + hns3_dump_rx_bd_info(priv, desc, s, i); } return 0; } -static const struct hns3_dbg_item tx_bd_info_items[] = { - { "BD_IDX", 2 }, - { "ADDRESS", 13 }, - { "VLAN_TAG", 2 }, - { "SIZE", 2 }, - { "T_CS_VLAN_TSO", 2 }, - { "OT_VLAN_TAG", 3 }, - { "TV", 5 }, - { "OLT_VLAN_LEN", 2 }, - { "PAYLEN_OL4CS", 2 }, - { "BD_FE_SC_VLD", 2 }, - { "MSS_HW_CSUM", 0 }, -}; - -static void hns3_dump_tx_bd_info(struct hns3_desc *desc, char **result, int idx) +static void hns3_dump_tx_bd_info(struct hns3_desc *desc, struct seq_file *s, + int idx) { - unsigned int j = 0; - - sprintf(result[j++], "%d", idx); - sprintf(result[j++], "%#llx", le64_to_cpu(desc->addr)); - sprintf(result[j++], "%u", le16_to_cpu(desc->tx.vlan_tag)); - sprintf(result[j++], "%u", le16_to_cpu(desc->tx.send_size)); - sprintf(result[j++], "%#x", - le32_to_cpu(desc->tx.type_cs_vlan_tso_len)); - sprintf(result[j++], "%u", le16_to_cpu(desc->tx.outer_vlan_tag)); - sprintf(result[j++], "%u", le16_to_cpu(desc->tx.tv)); - sprintf(result[j++], "%u", - le32_to_cpu(desc->tx.ol_type_vlan_len_msec)); - sprintf(result[j++], "%#x", le32_to_cpu(desc->tx.paylen_ol4cs)); - sprintf(result[j++], "%#x", le16_to_cpu(desc->tx.bdtp_fe_sc_vld_ra_ri)); - sprintf(result[j++], "%u", le16_to_cpu(desc->tx.mss_hw_csum)); + seq_printf(s, "%-8d%#-20llx%-10u%-6u%#-15x%-14u%-7u%-16u%#-14x%#-14x%-11u\n", + idx, le64_to_cpu(desc->addr), + le16_to_cpu(desc->tx.vlan_tag), + le16_to_cpu(desc->tx.send_size), + le32_to_cpu(desc->tx.type_cs_vlan_tso_len), + le16_to_cpu(desc->tx.outer_vlan_tag), + le16_to_cpu(desc->tx.tv), + le32_to_cpu(desc->tx.ol_type_vlan_len_msec), + le32_to_cpu(desc->tx.paylen_ol4cs), + le16_to_cpu(desc->tx.bdtp_fe_sc_vld_ra_ri), + le16_to_cpu(desc->tx.mss_hw_csum)); } -static int hns3_dbg_tx_bd_info(struct hns3_dbg_data *d, char *buf, int len) +static int hns3_dbg_tx_bd_info(struct seq_file *s, void *private) { - char data_str[ARRAY_SIZE(tx_bd_info_items)][HNS3_DBG_DATA_STR_LEN]; - struct hns3_nic_priv *priv = d->handle->priv; - char *result[ARRAY_SIZE(tx_bd_info_items)]; - char content[HNS3_DBG_INFO_LEN]; + struct hns3_dbg_data *data = s->private; + struct hnae3_handle *h = data->handle; + struct hns3_nic_priv *priv = h->priv; struct hns3_enet_ring *ring; struct hns3_desc *desc; unsigned int i; - int pos = 0; - if (d->qid >= d->handle->kinfo.num_tqps) { - dev_err(&d->handle->pdev->dev, - "queue%u is not in use\n", d->qid); + if (data->qid >= h->kinfo.num_tqps) { + dev_err(&h->pdev->dev, "queue%u is not in use\n", data->qid); return -EINVAL; } - for (i = 0; i < ARRAY_SIZE(tx_bd_info_items); i++) - result[i] = &data_str[i][0]; - - pos += scnprintf(buf + pos, len - pos, - "Queue %u tx bd info:\n", d->qid); - hns3_dbg_fill_content(content, sizeof(content), tx_bd_info_items, - NULL, ARRAY_SIZE(tx_bd_info_items)); - pos += scnprintf(buf + pos, len - pos, "%s", content); + seq_printf(s, "Queue %u tx bd info:\n", data->qid); + seq_puts(s, "BD_IDX ADDRESS VLAN_TAG SIZE "); + seq_puts(s, "T_CS_VLAN_TSO OT_VLAN_TAG TV OLT_VLAN_LEN "); + seq_puts(s, "PAYLEN_OL4CS BD_FE_SC_VLD MSS_HW_CSUM\n"); - ring = &priv->ring[d->qid]; + ring = &priv->ring[data->qid]; for (i = 0; i < ring->desc_num; i++) { desc = &ring->desc[i]; - hns3_dump_tx_bd_info(desc, result, i); - hns3_dbg_fill_content(content, sizeof(content), - tx_bd_info_items, (const char **)result, - ARRAY_SIZE(tx_bd_info_items)); - pos += scnprintf(buf + pos, len - pos, "%s", content); + hns3_dump_tx_bd_info(desc, s, i); } return 0; @@ -972,14 +877,6 @@ static int hns3_dbg_get_cmd_index(struct hns3_dbg_data *dbg_data, u32 *index) } static const struct hns3_dbg_func hns3_dbg_cmd_func[] = { - { - .cmd = HNAE3_DBG_CMD_TX_BD, - .dbg_dump_bd = hns3_dbg_tx_bd_info, - }, - { - .cmd = HNAE3_DBG_CMD_RX_BD, - .dbg_dump_bd = hns3_dbg_rx_bd_info, - }, }; static int hns3_dbg_read_cmd(struct hns3_dbg_data *dbg_data, @@ -1061,10 +958,29 @@ static const struct file_operations hns3_dbg_fops = { .release = hns3_dbg_release, }; +static int hns3_dbg_bd_info_show(struct seq_file *s, void *private) +{ + struct hns3_dbg_data *data = s->private; + struct hnae3_handle *h = data->handle; + struct hns3_nic_priv *priv = h->priv; + + if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) || + test_bit(HNS3_NIC_STATE_RESETTING, &priv->state)) + return -EBUSY; + + if (data->cmd == HNAE3_DBG_CMD_TX_BD) + return hns3_dbg_tx_bd_info(s, private); + else if (data->cmd == HNAE3_DBG_CMD_RX_BD) + return hns3_dbg_rx_bd_info(s, private); + + return -EOPNOTSUPP; +} +DEFINE_SHOW_ATTRIBUTE(hns3_dbg_bd_info); + static int hns3_dbg_bd_file_init(struct hnae3_handle *handle, u32 cmd) { - struct dentry *entry_dir; struct hns3_dbg_data *data; + struct dentry *entry_dir; u16 max_queue_num; unsigned int i; @@ -1083,7 +999,7 @@ static int hns3_dbg_bd_file_init(struct hnae3_handle *handle, u32 cmd) data[i].qid = i; sprintf(name, "%s%u", hns3_dbg_cmd[cmd].name, i); debugfs_create_file(name, 0400, entry_dir, &data[i], - &hns3_dbg_fops); + &hns3_dbg_bd_info_fops); } return 0; -- 2.33.0