static int atl1e_set_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom, u8 *bytes) { struct atl1e_adapter *adapter = netdev_priv(netdev); struct atl1e_hw *hw = &adapter->hw; u32 *eeprom_buff; u32 *ptr; int first_dword, last_dword; int ret_val = 0; int i; if (eeprom->len == 0) return -EOPNOTSUPP; if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) return -EINVAL; first_dword = eeprom->offset >> 2; last_dword = (eeprom->offset + eeprom->len - 1) >> 2; eeprom_buff = kmalloc(AT_EEPROM_LEN, GFP_KERNEL); if (eeprom_buff == NULL) return -ENOMEM; ptr = (u32 *)eeprom_buff; if (eeprom->offset & 3) { /* need read/modify/write of first changed EEPROM word */ /* only the second byte of the word is being modified */ if (!atl1e_read_eeprom(hw, first_dword * 4, &(eeprom_buff[0]))) { ret_val = -EIO; goto out; } ptr++; } if (((eeprom->offset + eeprom->len) & 3)) { /* need read/modify/write of last changed EEPROM word */ /* only the first byte of the word is being modified */ if (!atl1e_read_eeprom(hw, last_dword * 4, &(eeprom_buff[last_dword - first_dword]))) { ret_val = -EIO; goto out; } } /* Device's eeprom is always little-endian, word addressable */ memcpy(ptr, bytes, eeprom->len); for (i = 0; i < last_dword - first_dword + 1; i++) { if (!atl1e_write_eeprom(hw, ((first_dword + i) * 4), eeprom_buff[i])) { ret_val = -EIO; goto out; } } out: kfree(eeprom_buff); return ret_val; }
static int atl1e_set_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom, u8 *bytes) { struct atl1e_adapter *adapter = netdev_priv(netdev); struct atl1e_hw *hw = &adapter->hw; u32 *eeprom_buff; u32 *ptr; int first_dword, last_dword; int ret_val = 0; int i; if (eeprom->len == 0) return -EOPNOTSUPP; if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) return -EINVAL; first_dword = eeprom->offset >> 2; last_dword = (eeprom->offset + eeprom->len - 1) >> 2; eeprom_buff = kmalloc(AT_EEPROM_LEN, GFP_KERNEL); if (eeprom_buff == NULL) return -ENOMEM; ptr = (u32 *)eeprom_buff; if (eeprom->offset & 3) { if (!atl1e_read_eeprom(hw, first_dword * 4, &(eeprom_buff[0]))) { ret_val = -EIO; goto out; } ptr++; } if (((eeprom->offset + eeprom->len) & 3)) { if (!atl1e_read_eeprom(hw, last_dword * 4, &(eeprom_buff[last_dword - first_dword]))) { ret_val = -EIO; goto out; } } memcpy(ptr, bytes, eeprom->len); for (i = 0; i < last_dword - first_dword + 1; i++) { if (!atl1e_write_eeprom(hw, ((first_dword + i) * 4), eeprom_buff[i])) { ret_val = -EIO; goto out; } } out: kfree(eeprom_buff); return ret_val; }
static int atl1e_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom, u8 *bytes) { struct atl1e_adapter *adapter = netdev_priv(netdev); struct atl1e_hw *hw = &adapter->hw; u32 *eeprom_buff; int first_dword, last_dword; int ret_val = 0; int i; if (eeprom->len == 0) return -EINVAL; if (atl1e_check_eeprom_exist(hw)) /* not exist */ return -EINVAL; eeprom->magic = hw->vendor_id | (hw->device_id << 16); first_dword = eeprom->offset >> 2; last_dword = (eeprom->offset + eeprom->len - 1) >> 2; eeprom_buff = kmalloc(sizeof(u32) * (last_dword - first_dword + 1), GFP_KERNEL); if (eeprom_buff == NULL) return -ENOMEM; for (i = first_dword; i < last_dword; i++) { if (!atl1e_read_eeprom(hw, i * 4, &(eeprom_buff[i-first_dword]))) { kfree(eeprom_buff); return -EIO; } } memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3), eeprom->len); kfree(eeprom_buff); return ret_val; }