diff options
Diffstat (limited to 'drivers/net/e1000e/lib.c')
-rw-r--r-- | drivers/net/e1000e/lib.c | 232 |
1 files changed, 126 insertions, 106 deletions
diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c index 2fa9b36a2c5a..a8b2c0de27c4 100644 --- a/drivers/net/e1000e/lib.c +++ b/drivers/net/e1000e/lib.c @@ -51,10 +51,10 @@ enum e1000_mng_mode { **/ s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw) { + struct e1000_mac_info *mac = &hw->mac; struct e1000_bus_info *bus = &hw->bus; struct e1000_adapter *adapter = hw->adapter; - u32 status; - u16 pcie_link_status, pci_header_type, cap_offset; + u16 pcie_link_status, cap_offset; cap_offset = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP); if (!cap_offset) { @@ -68,20 +68,46 @@ s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw) PCIE_LINK_WIDTH_SHIFT); } - pci_read_config_word(adapter->pdev, PCI_HEADER_TYPE_REGISTER, - &pci_header_type); - if (pci_header_type & PCI_HEADER_TYPE_MULTIFUNC) { - status = er32(STATUS); - bus->func = (status & E1000_STATUS_FUNC_MASK) - >> E1000_STATUS_FUNC_SHIFT; - } else { - bus->func = 0; - } + mac->ops.set_lan_id(hw); return 0; } /** + * e1000_set_lan_id_multi_port_pcie - Set LAN id for PCIe multiple port devices + * + * @hw: pointer to the HW structure + * + * Determines the LAN function id by reading memory-mapped registers + * and swaps the port value if requested. + **/ +void e1000_set_lan_id_multi_port_pcie(struct e1000_hw *hw) +{ + struct e1000_bus_info *bus = &hw->bus; + u32 reg; + + /* + * The status register reports the correct function number + * for the device regardless of function swap state. + */ + reg = er32(STATUS); + bus->func = (reg & E1000_STATUS_FUNC_MASK) >> E1000_STATUS_FUNC_SHIFT; +} + +/** + * e1000_set_lan_id_single_port - Set LAN id for a single port device + * @hw: pointer to the HW structure + * + * Sets the LAN function id to zero for a single port device. + **/ +void e1000_set_lan_id_single_port(struct e1000_hw *hw) +{ + struct e1000_bus_info *bus = &hw->bus; + + bus->func = 0; +} + +/** * e1000_clear_vfta_generic - Clear VLAN filter table * @hw: pointer to the HW structure * @@ -139,6 +165,68 @@ void e1000e_init_rx_addrs(struct e1000_hw *hw, u16 rar_count) } /** + * e1000_check_alt_mac_addr_generic - Check for alternate MAC addr + * @hw: pointer to the HW structure + * + * Checks the nvm for an alternate MAC address. An alternate MAC address + * can be setup by pre-boot software and must be treated like a permanent + * address and must override the actual permanent MAC address. If an + * alternate MAC address is found it is programmed into RAR0, replacing + * the permanent address that was installed into RAR0 by the Si on reset. + * This function will return SUCCESS unless it encounters an error while + * reading the EEPROM. + **/ +s32 e1000_check_alt_mac_addr_generic(struct e1000_hw *hw) +{ + u32 i; + s32 ret_val = 0; + u16 offset, nvm_alt_mac_addr_offset, nvm_data; + u8 alt_mac_addr[ETH_ALEN]; + + ret_val = e1000_read_nvm(hw, NVM_ALT_MAC_ADDR_PTR, 1, + &nvm_alt_mac_addr_offset); + if (ret_val) { + e_dbg("NVM Read Error\n"); + goto out; + } + + if (nvm_alt_mac_addr_offset == 0xFFFF) { + /* There is no Alternate MAC Address */ + goto out; + } + + if (hw->bus.func == E1000_FUNC_1) + nvm_alt_mac_addr_offset += E1000_ALT_MAC_ADDRESS_OFFSET_LAN1; + for (i = 0; i < ETH_ALEN; i += 2) { + offset = nvm_alt_mac_addr_offset + (i >> 1); + ret_val = e1000_read_nvm(hw, offset, 1, &nvm_data); + if (ret_val) { + e_dbg("NVM Read Error\n"); + goto out; + } + + alt_mac_addr[i] = (u8)(nvm_data & 0xFF); + alt_mac_addr[i + 1] = (u8)(nvm_data >> 8); + } + + /* if multicast bit is set, the alternate address will not be used */ + if (alt_mac_addr[0] & 0x01) { + e_dbg("Ignoring Alternate Mac Address with MC bit set\n"); + goto out; + } + + /* + * We have a valid alternate MAC address, and we want to treat it the + * same as the normal permanent MAC address stored by the HW into the + * RAR. Do this by mapping this address into RAR0. + */ + e1000e_rar_set(hw, alt_mac_addr, 0); + +out: + return ret_val; +} + +/** * e1000e_rar_set - Set receive address register * @hw: pointer to the HW structure * @addr: pointer to the receive address @@ -252,62 +340,34 @@ static u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr) * @hw: pointer to the HW structure * @mc_addr_list: array of multicast addresses to program * @mc_addr_count: number of multicast addresses to program - * @rar_used_count: the first RAR register free to program - * @rar_count: total number of supported Receive Address Registers * - * Updates the Receive Address Registers and Multicast Table Array. + * Updates entire Multicast Table Array. * The caller must have a packed mc_addr_list of multicast addresses. - * The parameter rar_count will usually be hw->mac.rar_entry_count - * unless there are workarounds that change this. **/ void e1000e_update_mc_addr_list_generic(struct e1000_hw *hw, - u8 *mc_addr_list, u32 mc_addr_count, - u32 rar_used_count, u32 rar_count) + u8 *mc_addr_list, u32 mc_addr_count) { - u32 i; - u32 *mcarray = kzalloc(hw->mac.mta_reg_count * sizeof(u32), GFP_ATOMIC); + u32 hash_value, hash_bit, hash_reg; + int i; - if (!mcarray) { - printk(KERN_ERR "multicast array memory allocation failed\n"); - return; - } + /* clear mta_shadow */ + memset(&hw->mac.mta_shadow, 0, sizeof(hw->mac.mta_shadow)); - /* - * Load the first set of multicast addresses into the exact - * filters (RAR). If there are not enough to fill the RAR - * array, clear the filters. - */ - for (i = rar_used_count; i < rar_count; i++) { - if (mc_addr_count) { - e1000e_rar_set(hw, mc_addr_list, i); - mc_addr_count--; - mc_addr_list += ETH_ALEN; - } else { - E1000_WRITE_REG_ARRAY(hw, E1000_RA, i << 1, 0); - e1e_flush(); - E1000_WRITE_REG_ARRAY(hw, E1000_RA, (i << 1) + 1, 0); - e1e_flush(); - } - } - - /* Load any remaining multicast addresses into the hash table. */ - for (; mc_addr_count > 0; mc_addr_count--) { - u32 hash_value, hash_reg, hash_bit, mta; + /* update mta_shadow from mc_addr_list */ + for (i = 0; (u32) i < mc_addr_count; i++) { hash_value = e1000_hash_mc_addr(hw, mc_addr_list); - e_dbg("Hash value = 0x%03X\n", hash_value); + hash_reg = (hash_value >> 5) & (hw->mac.mta_reg_count - 1); hash_bit = hash_value & 0x1F; - mta = (1 << hash_bit); - mcarray[hash_reg] |= mta; - mc_addr_list += ETH_ALEN; - } - /* write the hash table completely */ - for (i = 0; i < hw->mac.mta_reg_count; i++) - E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, mcarray[i]); + hw->mac.mta_shadow[hash_reg] |= (1 << hash_bit); + mc_addr_list += (ETH_ALEN); + } + /* replace the entire MTA table */ + for (i = hw->mac.mta_reg_count - 1; i >= 0; i--) + E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, hw->mac.mta_shadow[i]); e1e_flush(); - kfree(mcarray); } /** @@ -587,7 +647,7 @@ s32 e1000e_check_for_serdes_link(struct e1000_hw *hw) if (!(rxcw & E1000_RXCW_IV)) { mac->serdes_has_link = true; e_dbg("SERDES: Link up - autoneg " - "completed sucessfully.\n"); + "completed successfully.\n"); } else { mac->serdes_has_link = false; e_dbg("SERDES: Link down - invalid" @@ -2072,67 +2132,27 @@ s32 e1000e_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) } /** - * e1000e_read_mac_addr - Read device MAC address + * e1000_read_mac_addr_generic - Read device MAC address * @hw: pointer to the HW structure * * Reads the device MAC address from the EEPROM and stores the value. * Since devices with two ports use the same EEPROM, we increment the * last bit in the MAC address for the second port. **/ -s32 e1000e_read_mac_addr(struct e1000_hw *hw) +s32 e1000_read_mac_addr_generic(struct e1000_hw *hw) { - s32 ret_val; - u16 offset, nvm_data, i; - u16 mac_addr_offset = 0; - - if (hw->mac.type == e1000_82571) { - /* Check for an alternate MAC address. An alternate MAC - * address can be setup by pre-boot software and must be - * treated like a permanent address and must override the - * actual permanent MAC address.*/ - ret_val = e1000_read_nvm(hw, NVM_ALT_MAC_ADDR_PTR, 1, - &mac_addr_offset); - if (ret_val) { - e_dbg("NVM Read Error\n"); - return ret_val; - } - if (mac_addr_offset == 0xFFFF) - mac_addr_offset = 0; - - if (mac_addr_offset) { - if (hw->bus.func == E1000_FUNC_1) - mac_addr_offset += ETH_ALEN/sizeof(u16); - - /* make sure we have a valid mac address here - * before using it */ - ret_val = e1000_read_nvm(hw, mac_addr_offset, 1, - &nvm_data); - if (ret_val) { - e_dbg("NVM Read Error\n"); - return ret_val; - } - if (nvm_data & 0x0001) - mac_addr_offset = 0; - } + u32 rar_high; + u32 rar_low; + u16 i; - if (mac_addr_offset) - hw->dev_spec.e82571.alt_mac_addr_is_present = 1; - } + rar_high = er32(RAH(0)); + rar_low = er32(RAL(0)); - for (i = 0; i < ETH_ALEN; i += 2) { - offset = mac_addr_offset + (i >> 1); - ret_val = e1000_read_nvm(hw, offset, 1, &nvm_data); - if (ret_val) { - e_dbg("NVM Read Error\n"); - return ret_val; - } - hw->mac.perm_addr[i] = (u8)(nvm_data & 0xFF); - hw->mac.perm_addr[i+1] = (u8)(nvm_data >> 8); - } + for (i = 0; i < E1000_RAL_MAC_ADDR_LEN; i++) + hw->mac.perm_addr[i] = (u8)(rar_low >> (i*8)); - /* Flip last bit of mac address if we're on second port */ - if (!mac_addr_offset && hw->bus.func == E1000_FUNC_1) - hw->mac.perm_addr[5] ^= 1; + for (i = 0; i < E1000_RAH_MAC_ADDR_LEN; i++) + hw->mac.perm_addr[i+4] = (u8)(rar_high >> (i*8)); for (i = 0; i < ETH_ALEN; i++) hw->mac.addr[i] = hw->mac.perm_addr[i]; |