diff options
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb.h | 8 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_ethtool.c | 81 |
2 files changed, 89 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index 25151401c2ab..7cb039827a0c 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -178,6 +178,14 @@ enum igb_tx_flags { #define TXD_USE_COUNT(S) DIV_ROUND_UP((S), IGB_MAX_DATA_PER_TXD) #define DESC_NEEDED (MAX_SKB_FRAGS + 4) +/* EEPROM byte offsets */ +#define IGB_SFF_8472_SWAP 0x5C +#define IGB_SFF_8472_COMP 0x5E + +/* Bitmasks */ +#define IGB_SFF_ADDRESSING_MODE 0x4 +#define IGB_SFF_8472_UNSUP 0x00 + /* wrapper around a pointer to a socket buffer, * so a DMA handle can be stored along with the buffer */ struct igb_tx_buffer { diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c index 8499c48090c6..6afd7278ad67 100644 --- a/drivers/net/ethernet/intel/igb/igb_ethtool.c +++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c @@ -2622,6 +2622,85 @@ static int igb_set_eee(struct net_device *netdev, return 0; } +static int igb_get_module_info(struct net_device *netdev, + struct ethtool_modinfo *modinfo) +{ + struct igb_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 status = E1000_SUCCESS; + u16 sff8472_rev, addr_mode; + bool page_swap = false; + + if ((hw->phy.media_type == e1000_media_type_copper) || + (hw->phy.media_type == e1000_media_type_unknown)) + return -EOPNOTSUPP; + + /* Check whether we support SFF-8472 or not */ + status = igb_read_phy_reg_i2c(hw, IGB_SFF_8472_COMP, &sff8472_rev); + if (status != E1000_SUCCESS) + return -EIO; + + /* addressing mode is not supported */ + status = igb_read_phy_reg_i2c(hw, IGB_SFF_8472_SWAP, &addr_mode); + if (status != E1000_SUCCESS) + return -EIO; + + /* addressing mode is not supported */ + if ((addr_mode & 0xFF) & IGB_SFF_ADDRESSING_MODE) { + hw_dbg("Address change required to access page 0xA2, but not supported. Please report the module type to the driver maintainers.\n"); + page_swap = true; + } + + if ((sff8472_rev & 0xFF) == IGB_SFF_8472_UNSUP || page_swap) { + /* We have an SFP, but it does not support SFF-8472 */ + modinfo->type = ETH_MODULE_SFF_8079; + modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; + } else { + /* We have an SFP which supports a revision of SFF-8472 */ + modinfo->type = ETH_MODULE_SFF_8472; + modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; + } + + return 0; +} + +static int igb_get_module_eeprom(struct net_device *netdev, + struct ethtool_eeprom *ee, u8 *data) +{ + struct igb_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 status = E1000_SUCCESS; + u16 *dataword; + u16 first_word, last_word; + int i = 0; + + if (ee->len == 0) + return -EINVAL; + + first_word = ee->offset >> 1; + last_word = (ee->offset + ee->len - 1) >> 1; + + dataword = kmalloc(sizeof(u16) * (last_word - first_word + 1), + GFP_KERNEL); + if (!dataword) + return -ENOMEM; + + /* Read EEPROM block, SFF-8079/SFF-8472, word at a time */ + for (i = 0; i < last_word - first_word + 1; i++) { + status = igb_read_phy_reg_i2c(hw, first_word + i, &dataword[i]); + if (status != E1000_SUCCESS) + /* Error occurred while reading module */ + return -EIO; + + be16_to_cpus(&dataword[i]); + } + + memcpy(data, (u8 *)dataword + (ee->offset & 1), ee->len); + kfree(dataword); + + return 0; +} + static int igb_ethtool_begin(struct net_device *netdev) { struct igb_adapter *adapter = netdev_priv(netdev); @@ -2666,6 +2745,8 @@ static const struct ethtool_ops igb_ethtool_ops = { .set_rxnfc = igb_set_rxnfc, .get_eee = igb_get_eee, .set_eee = igb_set_eee, + .get_module_info = igb_get_module_info, + .get_module_eeprom = igb_get_module_eeprom, .begin = igb_ethtool_begin, .complete = igb_ethtool_complete, }; |