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hinic: add support to get eeprom information 

add support to get eeprom information from the plug-in module
with ethtool -m cmd.

Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Luo bin 2020-06-28 20:36:24 +08:00 committed by David S. Miller
parent 07afcc7ab4
commit 2ac84cd160
4 changed files with 175 additions and 0 deletions
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69
drivers/net/ethernet/huawei/hinic/hinic_ethtool.c
View File

@ -25,6 +25,7 @@
#include <linux/if_vlan.h>
#include <linux/ethtool.h>
#include <linux/vmalloc.h>
#include <linux/sfp.h>
#include "hinic_hw_qp.h"
#include "hinic_hw_dev.h"
@ -1717,6 +1718,72 @@ 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 SFF8024_ID_SFP:
modinfo->type = ETH_MODULE_SFF_8472;
modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
break;
case SFF8024_ID_QSFP_8438:
modinfo->type = ETH_MODULE_SFF_8436;
modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN;
break;
case SFF8024_ID_QSFP_8436_8636:
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 SFF8024_ID_QSFP28_8636:
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 |
@ -1748,6 +1815,8 @@ 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 = {

4
drivers/net/ethernet/huawei/hinic/hinic_hw_dev.h
View File

@ -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 */

72
drivers/net/ethernet/huawei/hinic/hinic_port.c
View File

@ -1323,3 +1323,75 @@ 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];
u16 len;
int err;
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;
}

30
drivers/net/ethernet/huawei/hinic/hinic_port.h
View File

@ -677,6 +677,32 @@ struct hinic_led_info {
u8 reset;
};
#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 +826,10 @@ 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);