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Subject[PATCH net-next 03/11] net: hns3: add support for querying maximum value of GL
Date
For maintainability and compatibility, add support for querying
the maximum value of GL.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
drivers/net/ethernet/hisilicon/hns3/hnae3.h | 1 +
drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 1 +
drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 1 -
drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c | 14 ++++++++------
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h | 8 ++++++++
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 6 ++++++
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.h | 8 ++++++++
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 6 ++++++
8 files changed, 38 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 912c51e..f9d4d23 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -278,6 +278,7 @@ struct hnae3_dev_specs {
u16 rss_ind_tbl_size;
u16 rss_key_size;
u16 int_ql_max; /* max value of interrupt coalesce based on INT_QL */
+ u16 max_int_gl; /* max value of interrupt coalesce based on INT_GL */
u8 max_non_tso_bd_num; /* max BD number of one non-TSO packet */
};

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index dc9a857..a5ebca8 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -349,6 +349,7 @@ static void hns3_dbg_dev_specs(struct hnae3_handle *h)
dev_info(priv->dev, "Desc num per RX queue: %u\n", kinfo->num_rx_desc);
dev_info(priv->dev, "Total number of enabled TCs: %u\n", kinfo->num_tc);
dev_info(priv->dev, "MAX INT QL: %u\n", dev_specs->int_ql_max);
+ dev_info(priv->dev, "MAX INT GL: %u\n", dev_specs->max_int_gl);
}

static ssize_t hns3_dbg_cmd_read(struct file *filp, char __user *buffer,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index b37635d..4651ad1 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
@@ -420,7 +420,6 @@ enum hns3_flow_level_range {
HNS3_FLOW_ULTRA = 3,
};

-#define HNS3_INT_GL_MAX 0x1FE0
#define HNS3_INT_GL_50K 0x0014
#define HNS3_INT_GL_20K 0x0032
#define HNS3_INT_GL_18K 0x0036
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index 128e9ec..8d5c194 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -1130,19 +1130,21 @@ static int hns3_get_coalesce(struct net_device *netdev,
static int hns3_check_gl_coalesce_para(struct net_device *netdev,
struct ethtool_coalesce *cmd)
{
+ struct hnae3_handle *handle = hns3_get_handle(netdev);
+ struct hnae3_ae_dev *ae_dev = pci_get_drvdata(handle->pdev);
u32 rx_gl, tx_gl;

- if (cmd->rx_coalesce_usecs > HNS3_INT_GL_MAX) {
+ if (cmd->rx_coalesce_usecs > ae_dev->dev_specs.max_int_gl) {
netdev_err(netdev,
- "Invalid rx-usecs value, rx-usecs range is 0-%d\n",
- HNS3_INT_GL_MAX);
+ "invalid rx-usecs value, rx-usecs range is 0-%u\n",
+ ae_dev->dev_specs.max_int_gl);
return -EINVAL;
}

- if (cmd->tx_coalesce_usecs > HNS3_INT_GL_MAX) {
+ if (cmd->tx_coalesce_usecs > ae_dev->dev_specs.max_int_gl) {
netdev_err(netdev,
- "Invalid tx-usecs value, tx-usecs range is 0-%d\n",
- HNS3_INT_GL_MAX);
+ "invalid tx-usecs value, tx-usecs range is 0-%u\n",
+ ae_dev->dev_specs.max_int_gl);
return -EINVAL;
}

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index 096e26a..5b7967c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -1103,6 +1103,14 @@ struct hclge_dev_specs_0_cmd {
__le32 max_tm_rate;
};

+#define HCLGE_DEF_MAX_INT_GL 0x1FE0U
+
+struct hclge_dev_specs_1_cmd {
+ __le32 rsv0;
+ __le16 max_int_gl;
+ u8 rsv1[18];
+};
+
int hclge_cmd_init(struct hclge_dev *hdev);
static inline void hclge_write_reg(void __iomem *base, u32 reg, u32 value)
{
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 8bcdb28..7102001 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -1366,6 +1366,7 @@ static void hclge_set_default_dev_specs(struct hclge_dev *hdev)
ae_dev->dev_specs.rss_ind_tbl_size = HCLGE_RSS_IND_TBL_SIZE;
ae_dev->dev_specs.rss_key_size = HCLGE_RSS_KEY_SIZE;
ae_dev->dev_specs.max_tm_rate = HCLGE_ETHER_MAX_RATE;
+ ae_dev->dev_specs.max_int_gl = HCLGE_DEF_MAX_INT_GL;
}

static void hclge_parse_dev_specs(struct hclge_dev *hdev,
@@ -1373,8 +1374,10 @@ static void hclge_parse_dev_specs(struct hclge_dev *hdev,
{
struct hnae3_ae_dev *ae_dev = pci_get_drvdata(hdev->pdev);
struct hclge_dev_specs_0_cmd *req0;
+ struct hclge_dev_specs_1_cmd *req1;

req0 = (struct hclge_dev_specs_0_cmd *)desc[0].data;
+ req1 = (struct hclge_dev_specs_1_cmd *)desc[1].data;

ae_dev->dev_specs.max_non_tso_bd_num = req0->max_non_tso_bd_num;
ae_dev->dev_specs.rss_ind_tbl_size =
@@ -1382,6 +1385,7 @@ static void hclge_parse_dev_specs(struct hclge_dev *hdev,
ae_dev->dev_specs.int_ql_max = le16_to_cpu(req0->int_ql_max);
ae_dev->dev_specs.rss_key_size = le16_to_cpu(req0->rss_key_size);
ae_dev->dev_specs.max_tm_rate = le32_to_cpu(req0->max_tm_rate);
+ ae_dev->dev_specs.max_int_gl = le16_to_cpu(req1->max_int_gl);
}

static void hclge_check_dev_specs(struct hclge_dev *hdev)
@@ -1396,6 +1400,8 @@ static void hclge_check_dev_specs(struct hclge_dev *hdev)
dev_specs->rss_key_size = HCLGE_RSS_KEY_SIZE;
if (!dev_specs->max_tm_rate)
dev_specs->max_tm_rate = HCLGE_ETHER_MAX_RATE;
+ if (!dev_specs->max_int_gl)
+ dev_specs->max_int_gl = HCLGE_DEF_MAX_INT_GL;
}

static int hclge_query_dev_specs(struct hclge_dev *hdev)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.h
index 9460c12..f94f5d4 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.h
@@ -285,6 +285,14 @@ struct hclgevf_dev_specs_0_cmd {
u8 rsv1[5];
};

+#define HCLGEVF_DEF_MAX_INT_GL 0x1FE0U
+
+struct hclgevf_dev_specs_1_cmd {
+ __le32 rsv0;
+ __le16 max_int_gl;
+ u8 rsv1[18];
+};
+
static inline void hclgevf_write_reg(void __iomem *base, u32 reg, u32 value)
{
writel(value, base + reg);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 8209be9..71007e7 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -2991,6 +2991,7 @@ static void hclgevf_set_default_dev_specs(struct hclgevf_dev *hdev)
HCLGEVF_MAX_NON_TSO_BD_NUM;
ae_dev->dev_specs.rss_ind_tbl_size = HCLGEVF_RSS_IND_TBL_SIZE;
ae_dev->dev_specs.rss_key_size = HCLGEVF_RSS_KEY_SIZE;
+ ae_dev->dev_specs.max_int_gl = HCLGEVF_DEF_MAX_INT_GL;
}

static void hclgevf_parse_dev_specs(struct hclgevf_dev *hdev,
@@ -2998,14 +2999,17 @@ static void hclgevf_parse_dev_specs(struct hclgevf_dev *hdev,
{
struct hnae3_ae_dev *ae_dev = pci_get_drvdata(hdev->pdev);
struct hclgevf_dev_specs_0_cmd *req0;
+ struct hclgevf_dev_specs_1_cmd *req1;

req0 = (struct hclgevf_dev_specs_0_cmd *)desc[0].data;
+ req1 = (struct hclgevf_dev_specs_1_cmd *)desc[1].data;

ae_dev->dev_specs.max_non_tso_bd_num = req0->max_non_tso_bd_num;
ae_dev->dev_specs.rss_ind_tbl_size =
le16_to_cpu(req0->rss_ind_tbl_size);
ae_dev->dev_specs.int_ql_max = le16_to_cpu(req0->int_ql_max);
ae_dev->dev_specs.rss_key_size = le16_to_cpu(req0->rss_key_size);
+ ae_dev->dev_specs.max_int_gl = le16_to_cpu(req1->max_int_gl);
}

static void hclgevf_check_dev_specs(struct hclgevf_dev *hdev)
@@ -3018,6 +3022,8 @@ static void hclgevf_check_dev_specs(struct hclgevf_dev *hdev)
dev_specs->rss_ind_tbl_size = HCLGEVF_RSS_IND_TBL_SIZE;
if (!dev_specs->rss_key_size)
dev_specs->rss_key_size = HCLGEVF_RSS_KEY_SIZE;
+ if (!dev_specs->max_int_gl)
+ dev_specs->max_int_gl = HCLGEVF_DEF_MAX_INT_GL;
}

static int hclgevf_query_dev_specs(struct hclgevf_dev *hdev)
--
2.7.4
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