[PATCH net-next 5/5] hinic: add support to get eeprom information
From: Luo bin
Date: Wed Jun 03 2020 - 02:21:53 EST
add support to get eeprom information from the plug-in module
with ethtool -m cmd.
Signed-off-by: Luo bin <luobin9@xxxxxxxxxx>
---
.../net/ethernet/huawei/hinic/hinic_ethtool.c | 68 ++++++++++++++++
.../net/ethernet/huawei/hinic/hinic_hw_dev.h | 4 +
.../net/ethernet/huawei/hinic/hinic_port.c | 78 +++++++++++++++++++
.../net/ethernet/huawei/hinic/hinic_port.h | 35 +++++++++
4 files changed, 185 insertions(+)
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c b/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
index 61a5c59532b8..a49344825c9f 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
@@ -1799,6 +1799,72 @@ static int hinic_set_phys_id(struct net_device *netdev,
return err;
}
+static int hinic_get_module_info(struct net_device *netdev,
+ struct ethtool_modinfo *modinfo)
+{
+ struct hinic_dev *nic_dev = netdev_priv(netdev);
+ u8 sfp_type_ext;
+ u8 sfp_type;
+ int err;
+
+ err = hinic_get_sfp_type(nic_dev->hwdev, &sfp_type, &sfp_type_ext);
+ if (err)
+ return err;
+
+ switch (sfp_type) {
+ case MODULE_TYPE_SFP:
+ modinfo->type = ETH_MODULE_SFF_8472;
+ modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
+ break;
+ case MODULE_TYPE_QSFP:
+ modinfo->type = ETH_MODULE_SFF_8436;
+ modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN;
+ break;
+ case MODULE_TYPE_QSFP_PLUS:
+ if (sfp_type_ext >= 0x3) {
+ modinfo->type = ETH_MODULE_SFF_8636;
+ modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN;
+
+ } else {
+ modinfo->type = ETH_MODULE_SFF_8436;
+ modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN;
+ }
+ break;
+ case MODULE_TYPE_QSFP28:
+ modinfo->type = ETH_MODULE_SFF_8636;
+ modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN;
+ break;
+ default:
+ netif_warn(nic_dev, drv, netdev,
+ "Optical module unknown: 0x%x\n", sfp_type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int hinic_get_module_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *ee, u8 *data)
+{
+ struct hinic_dev *nic_dev = netdev_priv(netdev);
+ u8 sfp_data[STD_SFP_INFO_MAX_SIZE];
+ u16 len;
+ int err;
+
+ if (!ee->len || ((ee->len + ee->offset) > STD_SFP_INFO_MAX_SIZE))
+ return -EINVAL;
+
+ memset(data, 0, ee->len);
+
+ err = hinic_get_sfp_eeprom(nic_dev->hwdev, sfp_data, &len);
+ if (err)
+ return err;
+
+ memcpy(data, sfp_data + ee->offset, ee->len);
+
+ return 0;
+}
+
static const struct ethtool_ops hinic_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
ETHTOOL_COALESCE_RX_MAX_FRAMES |
@@ -1830,6 +1896,8 @@ static const struct ethtool_ops hinic_ethtool_ops = {
.get_strings = hinic_get_strings,
.self_test = hinic_diag_test,
.set_phys_id = hinic_set_phys_id,
+ .get_module_info = hinic_get_module_info,
+ .get_module_eeprom = hinic_get_module_eeprom,
};
static const struct ethtool_ops hinicvf_ethtool_ops = {
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.h b/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.h
index 01fe94f2d4bc..958ea1a6a60d 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.h
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_dev.h
@@ -130,9 +130,13 @@ enum hinic_port_cmd {
HINIC_PORT_CMD_SET_AUTONEG = 219,
+ HINIC_PORT_CMD_GET_STD_SFP_INFO = 240,
+
HINIC_PORT_CMD_SET_LRO_TIMER = 244,
HINIC_PORT_CMD_SET_VF_MAX_MIN_RATE = 249,
+
+ HINIC_PORT_CMD_GET_SFP_ABS = 251,
};
/* cmd of mgmt CPU message for HILINK module */
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_port.c b/drivers/net/ethernet/huawei/hinic/hinic_port.c
index fc99d9f6799a..82f2c3f2a62b 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_port.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_port.c
@@ -1326,3 +1326,81 @@ int hinic_reset_led_status(struct hinic_hwdev *hwdev, u8 port)
return err;
}
+
+static bool hinic_if_sfp_absent(struct hinic_hwdev *hwdev)
+{
+ struct hinic_cmd_get_light_module_abs sfp_abs = {0};
+ u16 out_size = sizeof(sfp_abs);
+ u8 port_id = hwdev->port_id;
+ int err;
+
+ sfp_abs.port_id = port_id;
+ err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_GET_SFP_ABS,
+ &sfp_abs, sizeof(sfp_abs), &sfp_abs,
+ &out_size);
+ if (sfp_abs.status || err || !out_size) {
+ dev_err(&hwdev->hwif->pdev->dev,
+ "Failed to get port%d sfp absent status, err: %d, status: 0x%x, out size: 0x%x\n",
+ port_id, err, sfp_abs.status, out_size);
+ return true;
+ }
+
+ return ((sfp_abs.abs_status == 0) ? false : true);
+}
+
+int hinic_get_sfp_eeprom(struct hinic_hwdev *hwdev, u8 *data, u16 *len)
+{
+ struct hinic_cmd_get_std_sfp_info sfp_info = {0};
+ u16 out_size = sizeof(sfp_info);
+ u8 port_id;
+ int err;
+
+ if (!hwdev || !data || !len)
+ return -EINVAL;
+
+ port_id = hwdev->port_id;
+
+ if (hinic_if_sfp_absent(hwdev))
+ return -ENXIO;
+
+ sfp_info.port_id = port_id;
+ err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_GET_STD_SFP_INFO,
+ &sfp_info, sizeof(sfp_info), &sfp_info,
+ &out_size);
+ if (sfp_info.status || err || !out_size) {
+ dev_err(&hwdev->hwif->pdev->dev,
+ "Failed to get port%d sfp eeprom information, err: %d, status: 0x%x, out size: 0x%x\n",
+ port_id, err, sfp_info.status, out_size);
+ return -EIO;
+ }
+
+ *len = min_t(u16, sfp_info.eeprom_len, STD_SFP_INFO_MAX_SIZE);
+ memcpy(data, sfp_info.sfp_info, STD_SFP_INFO_MAX_SIZE);
+
+ return 0;
+}
+
+int hinic_get_sfp_type(struct hinic_hwdev *hwdev, u8 *data0, u8 *data1)
+{
+ u8 sfp_data[STD_SFP_INFO_MAX_SIZE];
+ u8 port_id;
+ u16 len;
+ int err;
+
+ if (!hwdev || !data0 || !data1)
+ return -EINVAL;
+
+ port_id = hwdev->port_id;
+
+ if (hinic_if_sfp_absent(hwdev))
+ return -ENXIO;
+
+ err = hinic_get_sfp_eeprom(hwdev, sfp_data, &len);
+ if (err)
+ return err;
+
+ *data0 = sfp_data[0];
+ *data1 = sfp_data[1];
+
+ return 0;
+}
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_port.h b/drivers/net/ethernet/huawei/hinic/hinic_port.h
index 5c916875f295..0d0354241345 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_port.h
+++ b/drivers/net/ethernet/huawei/hinic/hinic_port.h
@@ -677,6 +677,37 @@ struct hinic_led_info {
u8 reset;
};
+#define MODULE_TYPE_SFP 0x3
+#define MODULE_TYPE_QSFP28 0x11
+#define MODULE_TYPE_QSFP 0x0C
+#define MODULE_TYPE_QSFP_PLUS 0x0D
+
+#define STD_SFP_INFO_MAX_SIZE 640
+
+struct hinic_cmd_get_light_module_abs {
+ u8 status;
+ u8 version;
+ u8 rsvd0[6];
+
+ u8 port_id;
+ u8 abs_status; /* 0:present, 1:absent */
+ u8 rsv[2];
+};
+
+#define STD_SFP_INFO_MAX_SIZE 640
+
+struct hinic_cmd_get_std_sfp_info {
+ u8 status;
+ u8 version;
+ u8 rsvd0[6];
+
+ u8 port_id;
+ u8 wire_type;
+ u16 eeprom_len;
+ u32 rsvd;
+ u8 sfp_info[STD_SFP_INFO_MAX_SIZE];
+};
+
int hinic_port_add_mac(struct hinic_dev *nic_dev, const u8 *addr,
u16 vlan_id);
@@ -800,6 +831,10 @@ int hinic_reset_led_status(struct hinic_hwdev *hwdev, u8 port);
int hinic_set_led_status(struct hinic_hwdev *hwdev, u8 port,
enum hinic_led_type type, enum hinic_led_mode mode);
+int hinic_get_sfp_type(struct hinic_hwdev *hwdev, u8 *data0, u8 *data1);
+
+int hinic_get_sfp_eeprom(struct hinic_hwdev *hwdev, u8 *data, u16 *len);
+
int hinic_open(struct net_device *netdev);
int hinic_close(struct net_device *netdev);
--
2.17.1