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Subject[PATCH net-next] net: hns3: Config NIC port speed same as that of optical module
Date
From: Peng Li <lipeng321@huawei.com>

Port 0/1 of HiP08 supports 10G and 25G. This patch adds a
change to configure NIC port speed same as that of optical
module(SFP/QFSP). Driver gets the optical module speed and
sets NIC port speed accordingly.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h | 23 +++---
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 84 ++++++++++------------
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 2 +
3 files changed, 49 insertions(+), 60 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index 2b90410..e1805b9 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -90,7 +90,6 @@ enum hclge_opcode_type {
/* MAC command */
HCLGE_OPC_CONFIG_MAC_MODE = 0x0301,
HCLGE_OPC_CONFIG_AN_MODE = 0x0304,
- HCLGE_OPC_QUERY_AN_RESULT = 0x0306,
HCLGE_OPC_QUERY_LINK_STATUS = 0x0307,
HCLGE_OPC_CONFIG_MAX_FRM_SIZE = 0x0308,
HCLGE_OPC_CONFIG_SPEED_DUP = 0x0309,
@@ -212,6 +211,9 @@ enum hclge_opcode_type {
/* Led command */
HCLGE_OPC_LED_STATUS_CFG = 0xB000,

+ /* SFP command */
+ HCLGE_OPC_SFP_GET_SPEED = 0x7104,
+
/* Error INT commands */
HCLGE_TM_SCH_ECC_INT_EN = 0x0829,
HCLGE_TM_SCH_ECC_ERR_RINT_CMD = 0x082d,
@@ -544,20 +546,6 @@ struct hclge_config_mac_speed_dup_cmd {
u8 rsv[22];
};

-#define HCLGE_QUERY_SPEED_S 3
-#define HCLGE_QUERY_AN_B 0
-#define HCLGE_QUERY_DUPLEX_B 2
-
-#define HCLGE_QUERY_SPEED_M GENMASK(4, 0)
-#define HCLGE_QUERY_AN_M BIT(HCLGE_QUERY_AN_B)
-#define HCLGE_QUERY_DUPLEX_M BIT(HCLGE_QUERY_DUPLEX_B)
-
-struct hclge_query_an_speed_dup_cmd {
- u8 an_syn_dup_speed;
- u8 pause;
- u8 rsv[23];
-};
-
#define HCLGE_RING_ID_MASK GENMASK(9, 0)
#define HCLGE_TQP_ENABLE_B 0

@@ -574,6 +562,11 @@ struct hclge_config_auto_neg_cmd {
u8 rsv[20];
};

+struct hclge_sfp_speed_cmd {
+ __le32 sfp_speed;
+ u32 rsv[5];
+};
+
#define HCLGE_MAC_UPLINK_PORT 0x100

struct hclge_config_max_frm_size_cmd {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 696cb53..1c8cf84 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -1896,37 +1896,6 @@ static int hclge_cfg_mac_speed_dup_h(struct hnae3_handle *handle, int speed,
return hclge_cfg_mac_speed_dup(hdev, speed, duplex);
}

-static int hclge_query_mac_an_speed_dup(struct hclge_dev *hdev, int *speed,
- u8 *duplex)
-{
- struct hclge_query_an_speed_dup_cmd *req;
- struct hclge_desc desc;
- int speed_tmp;
- int ret;
-
- req = (struct hclge_query_an_speed_dup_cmd *)desc.data;
-
- hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_QUERY_AN_RESULT, true);
- ret = hclge_cmd_send(&hdev->hw, &desc, 1);
- if (ret) {
- dev_err(&hdev->pdev->dev,
- "mac speed/autoneg/duplex query cmd failed %d\n",
- ret);
- return ret;
- }
-
- *duplex = hnae3_get_bit(req->an_syn_dup_speed, HCLGE_QUERY_DUPLEX_B);
- speed_tmp = hnae3_get_field(req->an_syn_dup_speed, HCLGE_QUERY_SPEED_M,
- HCLGE_QUERY_SPEED_S);
-
- ret = hclge_parse_speed(speed_tmp, speed);
- if (ret)
- dev_err(&hdev->pdev->dev,
- "could not parse speed(=%d), %d\n", speed_tmp, ret);
-
- return ret;
-}
-
static int hclge_set_autoneg_en(struct hclge_dev *hdev, bool enable)
{
struct hclge_config_auto_neg_cmd *req;
@@ -1973,6 +1942,7 @@ static int hclge_mac_init(struct hclge_dev *hdev)
struct hclge_mac *mac = &hdev->hw.mac;
int ret;

+ hdev->support_sfp_query = true;
hdev->hw.mac.duplex = HCLGE_MAC_FULL;
ret = hclge_cfg_mac_speed_dup_hw(hdev, hdev->hw.mac.speed,
hdev->hw.mac.duplex);
@@ -2082,34 +2052,58 @@ static void hclge_update_link_status(struct hclge_dev *hdev)
}
}

+static int hclge_get_sfp_speed(struct hclge_dev *hdev, u32 *speed)
+{
+ struct hclge_sfp_speed_cmd *resp = NULL;
+ struct hclge_desc desc;
+ int ret;
+
+ hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_SFP_GET_SPEED, true);
+ resp = (struct hclge_sfp_speed_cmd *)desc.data;
+ ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+ if (ret == -EOPNOTSUPP) {
+ dev_warn(&hdev->pdev->dev,
+ "IMP do not support get SFP speed %d\n", ret);
+ return ret;
+ } else if (ret) {
+ dev_err(&hdev->pdev->dev, "get sfp speed failed %d\n", ret);
+ return ret;
+ }
+
+ *speed = resp->sfp_speed;
+
+ return 0;
+}
+
static int hclge_update_speed_duplex(struct hclge_dev *hdev)
{
struct hclge_mac mac = hdev->hw.mac;
- u8 duplex;
int speed;
int ret;

- /* get the speed and duplex as autoneg'result from mac cmd when phy
+ /* get the speed from SFP cmd when phy
* doesn't exit.
*/
- if (mac.phydev || !mac.autoneg)
+ if (mac.phydev)
return 0;

- ret = hclge_query_mac_an_speed_dup(hdev, &speed, &duplex);
- if (ret) {
- dev_err(&hdev->pdev->dev,
- "mac autoneg/speed/duplex query failed %d\n", ret);
- return ret;
- }
+ /* if IMP does not support get SFP/qSFP speed, return directly */
+ if (!hdev->support_sfp_query)
+ return 0;

- ret = hclge_cfg_mac_speed_dup(hdev, speed, duplex);
- if (ret) {
- dev_err(&hdev->pdev->dev,
- "mac speed/duplex config failed %d\n", ret);
+ ret = hclge_get_sfp_speed(hdev, &speed);
+ if (ret == -EOPNOTSUPP) {
+ hdev->support_sfp_query = false;
+ return ret;
+ } else if (ret) {
return ret;
}

- return 0;
+ if (speed == HCLGE_MAC_SPEED_UNKNOWN)
+ return 0; /* do nothing if no SFP */
+
+ /* must config full duplex for SFP */
+ return hclge_cfg_mac_speed_dup(hdev, speed, HCLGE_MAC_FULL);
}

static int hclge_update_speed_duplex_h(struct hnae3_handle *handle)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 4122ad1..0dd23a1 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -155,6 +155,7 @@ enum hclge_evt_cause {
#define HCLGE_MPF_ENBALE 1

enum HCLGE_MAC_SPEED {
+ HCLGE_MAC_SPEED_UNKNOWN = 0, /* unknown */
HCLGE_MAC_SPEED_10M = 10, /* 10 Mbps */
HCLGE_MAC_SPEED_100M = 100, /* 100 Mbps */
HCLGE_MAC_SPEED_1G = 1000, /* 1000 Mbps = 1 Gbps */
@@ -624,6 +625,7 @@ struct hclge_dev {
u8 hw_tc_map;
u8 tc_num_last_time;
enum hclge_fc_mode fc_mode_last_time;
+ u8 support_sfp_query;

#define HCLGE_FLAG_TC_BASE_SCH_MODE 1
#define HCLGE_FLAG_VNET_BASE_SCH_MODE 2
--
2.7.4

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