From: Hao Chen chenhao288@hisilicon.com
mainline inclusion from mainline-master commit d2f737cf21b87d4239987da69a3b14730c6a57ad category: feature bugzilla: 173966 CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
----------------------------------------------------------------------
Currently, the debugfs command for queue map is implemented by "echo xxxx > cmd", and record the information in dmesg. It's unnecessary and heavy. To improve it, create a single file "queue_map" for it, and query it by command "cat queue_map", return the result to userspace, rather than record in dmesg.
The display style is below: $ cat queue_map local_queue_id global_queue_id vector_id 0 0 341
Signed-off-by: Hao Chen chenhao288@hisilicon.com Signed-off-by: Huazhong Tan tanhuazhong@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Reviewed-by: Yongxin Li liyongxin1@huawei.com Signed-off-by: Junxin Chen chenjunxin1@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/net/ethernet/hisilicon/hns3/hnae3.h | 1 + .../ethernet/hisilicon/hns3/hns3_debugfs.c | 58 ++++++++++++++----- .../ethernet/hisilicon/hns3/hns3_debugfs.h | 1 + 3 files changed, 45 insertions(+), 15 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h index 747670b77fd2..b5ebb29d9c9c 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h @@ -275,6 +275,7 @@ enum hnae3_dbg_cmd { HNAE3_DBG_CMD_REG_TQP, HNAE3_DBG_CMD_REG_MAC, HNAE3_DBG_CMD_REG_DCB, + HNAE3_DBG_CMD_QUEUE_MAP, HNAE3_DBG_CMD_UNKNOWN, };
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c index 9add38948e98..fc4e17b6d86f 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c @@ -26,6 +26,9 @@ static struct hns3_dbg_dentry_info hns3_dbg_dentry[] = { { .name = "reg" }, + { + .name = "queue" + }, /* keep common at the bottom and add new directory above */ { .name = "common" @@ -212,6 +215,13 @@ static struct hns3_dbg_cmd_info hns3_dbg_cmd[] = { .buf_len = HNS3_DBG_READ_LEN, .init = hns3_dbg_common_file_init, }, + { + .name = "queue_map", + .cmd = HNAE3_DBG_CMD_QUEUE_MAP, + .dentry = HNS3_DBG_DENTRY_QUEUE, + .buf_len = HNS3_DBG_READ_LEN, + .init = hns3_dbg_common_file_init, + }, };
static struct hns3_dbg_cap_info hns3_dbg_cap[] = { @@ -403,27 +413,44 @@ static int hns3_dbg_queue_info(struct hnae3_handle *h, return 0; }
-static int hns3_dbg_queue_map(struct hnae3_handle *h) +static const struct hns3_dbg_item queue_map_items[] = { + { "local_queue_id", 2 }, + { "global_queue_id", 2 }, + { "vector_id", 2 }, +}; + +static int hns3_dbg_queue_map(struct hnae3_handle *h, char *buf, int len) { + char data_str[ARRAY_SIZE(queue_map_items)][HNS3_DBG_DATA_STR_LEN]; + char *result[ARRAY_SIZE(queue_map_items)]; struct hns3_nic_priv *priv = h->priv; - int i; + char content[HNS3_DBG_INFO_LEN]; + int pos = 0; + int j; + u32 i;
if (!h->ae_algo->ops->get_global_queue_id) return -EOPNOTSUPP;
- dev_info(&h->pdev->dev, "map info for queue id and vector id\n"); - dev_info(&h->pdev->dev, - "local queue id | global queue id | vector id\n"); - for (i = 0; i < h->kinfo.num_tqps; i++) { - u16 global_qid; + for (i = 0; i < ARRAY_SIZE(queue_map_items); i++) + result[i] = &data_str[i][0];
- global_qid = h->ae_algo->ops->get_global_queue_id(h, i); + hns3_dbg_fill_content(content, sizeof(content), queue_map_items, + NULL, ARRAY_SIZE(queue_map_items)); + pos += scnprintf(buf + pos, len - pos, "%s", content); + for (i = 0; i < h->kinfo.num_tqps; i++) { if (!priv->ring || !priv->ring[i].tqp_vector) continue; - - dev_info(&h->pdev->dev, - " %4d %4u %4d\n", - i, global_qid, priv->ring[i].tqp_vector->vector_irq); + j = 0; + sprintf(result[j++], "%u", i); + sprintf(result[j++], "%u", + h->ae_algo->ops->get_global_queue_id(h, i)); + sprintf(result[j++], "%u", + priv->ring[i].tqp_vector->vector_irq); + hns3_dbg_fill_content(content, sizeof(content), queue_map_items, + (const char **)result, + ARRAY_SIZE(queue_map_items)); + pos += scnprintf(buf + pos, len - pos, "%s", content); }
return 0; @@ -590,7 +617,6 @@ static void hns3_dbg_help(struct hnae3_handle *h) { dev_info(&h->pdev->dev, "available commands\n"); dev_info(&h->pdev->dev, "queue info <number>\n"); - dev_info(&h->pdev->dev, "queue map\n");
if (!hns3_is_phys_func(h->pdev)) return; @@ -717,8 +743,6 @@ static int hns3_dbg_check_cmd(struct hnae3_handle *handle, char *cmd_buf) hns3_dbg_help(handle); else if (strncmp(cmd_buf, "queue info", 10) == 0) ret = hns3_dbg_queue_info(handle, cmd_buf); - else if (strncmp(cmd_buf, "queue map", 9) == 0) - ret = hns3_dbg_queue_map(handle); else if (handle->ae_algo->ops->dbg_run_cmd) ret = handle->ae_algo->ops->dbg_run_cmd(handle, cmd_buf); else @@ -793,6 +817,10 @@ static int hns3_dbg_get_cmd_index(struct hnae3_handle *handle, }
static const struct hns3_dbg_func hns3_dbg_cmd_func[] = { + { + .cmd = HNAE3_DBG_CMD_QUEUE_MAP, + .dbg_dump = hns3_dbg_queue_map, + }, { .cmd = HNAE3_DBG_CMD_DEV_INFO, .dbg_dump = hns3_dbg_dev_info, diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.h b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.h index 6060bfc21850..4cab37a5d44a 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.h @@ -30,6 +30,7 @@ enum hns3_dbg_dentry_type { HNS3_DBG_DENTRY_RX_BD, HNS3_DBG_DENTRY_MAC, HNS3_DBG_DENTRY_REG, + HNS3_DBG_DENTRY_QUEUE, HNS3_DBG_DENTRY_COMMON, };