diff options
Diffstat (limited to 'drivers/net/igb/e1000_82575.c')
| -rw-r--r-- | drivers/net/igb/e1000_82575.c | 208 |
1 files changed, 195 insertions, 13 deletions
diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c index 2c8b91060d98..e098f234770f 100644 --- a/drivers/net/igb/e1000_82575.c +++ b/drivers/net/igb/e1000_82575.c @@ -31,6 +31,7 @@ #include <linux/types.h> #include <linux/slab.h> +#include <linux/if_ether.h> #include "e1000_mac.h" #include "e1000_82575.h" @@ -45,7 +46,6 @@ static s32 igb_get_cfg_done_82575(struct e1000_hw *); static s32 igb_init_hw_82575(struct e1000_hw *); static s32 igb_phy_hw_reset_sgmii_82575(struct e1000_hw *); static s32 igb_read_phy_reg_sgmii_82575(struct e1000_hw *, u32, u16 *); -static void igb_rar_set_82575(struct e1000_hw *, u8 *, u32); static s32 igb_reset_hw_82575(struct e1000_hw *); static s32 igb_set_d0_lplu_state_82575(struct e1000_hw *, bool); static s32 igb_setup_copper_link_82575(struct e1000_hw *); @@ -84,6 +84,12 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw) case E1000_DEV_ID_82575GB_QUAD_COPPER: mac->type = e1000_82575; break; + case E1000_DEV_ID_82576: + case E1000_DEV_ID_82576_FIBER: + case E1000_DEV_ID_82576_SERDES: + case E1000_DEV_ID_82576_QUAD_COPPER: + mac->type = e1000_82576; + break; default: return -E1000_ERR_MAC_INIT; break; @@ -128,6 +134,8 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw) mac->mta_reg_count = 128; /* Set rar entry count */ mac->rar_entry_count = E1000_RAR_ENTRIES_82575; + if (mac->type == e1000_82576) + mac->rar_entry_count = E1000_RAR_ENTRIES_82576; /* Set if part includes ASF firmware */ mac->asf_firmware_present = true; /* Set if manageability features are enabled. */ @@ -694,13 +702,12 @@ static s32 igb_check_for_link_82575(struct e1000_hw *hw) if ((hw->phy.media_type != e1000_media_type_copper) || (igb_sgmii_active_82575(hw))) ret_val = igb_get_pcs_speed_and_duplex_82575(hw, &speed, - &duplex); + &duplex); else ret_val = igb_check_for_copper_link(hw); return ret_val; } - /** * igb_get_pcs_speed_and_duplex_82575 - Retrieve current speed/duplex * @hw: pointer to the HW structure @@ -757,18 +764,129 @@ static s32 igb_get_pcs_speed_and_duplex_82575(struct e1000_hw *hw, u16 *speed, } /** - * igb_rar_set_82575 - Set receive address register + * igb_init_rx_addrs_82575 - Initialize receive address's + * @hw: pointer to the HW structure + * @rar_count: receive address registers + * + * Setups the receive address registers by setting the base receive address + * register to the devices MAC address and clearing all the other receive + * address registers to 0. + **/ +static void igb_init_rx_addrs_82575(struct e1000_hw *hw, u16 rar_count) +{ + u32 i; + u8 addr[6] = {0,0,0,0,0,0}; + /* + * This function is essentially the same as that of + * e1000_init_rx_addrs_generic. However it also takes care + * of the special case where the register offset of the + * second set of RARs begins elsewhere. This is implicitly taken care by + * function e1000_rar_set_generic. + */ + + hw_dbg("e1000_init_rx_addrs_82575"); + + /* Setup the receive address */ + hw_dbg("Programming MAC Address into RAR[0]\n"); + hw->mac.ops.rar_set(hw, hw->mac.addr, 0); + + /* Zero out the other (rar_entry_count - 1) receive addresses */ + hw_dbg("Clearing RAR[1-%u]\n", rar_count-1); + for (i = 1; i < rar_count; i++) + hw->mac.ops.rar_set(hw, addr, i); +} + +/** + * igb_update_mc_addr_list_82575 - Update Multicast addresses + * @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. + * 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 igb_update_mc_addr_list_82575(struct e1000_hw *hw, + u8 *mc_addr_list, u32 mc_addr_count, + u32 rar_used_count, u32 rar_count) +{ + u32 hash_value; + u32 i; + u8 addr[6] = {0,0,0,0,0,0}; + /* + * This function is essentially the same as that of + * igb_update_mc_addr_list_generic. However it also takes care + * of the special case where the register offset of the + * second set of RARs begins elsewhere. This is implicitly taken care by + * function e1000_rar_set_generic. + */ + + /* + * 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) { + igb_rar_set(hw, mc_addr_list, i); + mc_addr_count--; + mc_addr_list += ETH_ALEN; + } else { + igb_rar_set(hw, addr, i); + } + } + + /* Clear the old settings from the MTA */ + hw_dbg("Clearing MTA\n"); + for (i = 0; i < hw->mac.mta_reg_count; i++) { + array_wr32(E1000_MTA, i, 0); + wrfl(); + } + + /* Load any remaining multicast addresses into the hash table. */ + for (; mc_addr_count > 0; mc_addr_count--) { + hash_value = igb_hash_mc_addr(hw, mc_addr_list); + hw_dbg("Hash value = 0x%03X\n", hash_value); + hw->mac.ops.mta_set(hw, hash_value); + mc_addr_list += ETH_ALEN; + } +} + +/** + * igb_shutdown_fiber_serdes_link_82575 - Remove link during power down * @hw: pointer to the HW structure - * @addr: pointer to the receive address - * @index: receive address array register * - * Sets the receive address array register at index to the address passed - * in by addr. + * In the case of fiber serdes, shut down optics and PCS on driver unload + * when management pass thru is not enabled. **/ -static void igb_rar_set_82575(struct e1000_hw *hw, u8 *addr, u32 index) +void igb_shutdown_fiber_serdes_link_82575(struct e1000_hw *hw) { - if (index < E1000_RAR_ENTRIES_82575) - igb_rar_set(hw, addr, index); + u32 reg; + + if (hw->mac.type != e1000_82576 || + (hw->phy.media_type != e1000_media_type_fiber && + hw->phy.media_type != e1000_media_type_internal_serdes)) + return; + + /* if the management interface is not enabled, then power down */ + if (!igb_enable_mng_pass_thru(hw)) { + /* Disable PCS to turn off link */ + reg = rd32(E1000_PCS_CFG0); + reg &= ~E1000_PCS_CFG_PCS_EN; + wr32(E1000_PCS_CFG0, reg); + + /* shutdown the laser */ + reg = rd32(E1000_CTRL_EXT); + reg |= E1000_CTRL_EXT_SDP7_DATA; + wr32(E1000_CTRL_EXT, reg); + + /* flush the write to verify completion */ + wrfl(); + msleep(1); + } return; } @@ -854,7 +972,7 @@ static s32 igb_init_hw_82575(struct e1000_hw *hw) igb_clear_vfta(hw); /* Setup the receive address */ - igb_init_rx_addrs(hw, rar_count); + igb_init_rx_addrs_82575(hw, rar_count); /* Zero out the Multicast HASH table */ hw_dbg("Zeroing the MTA\n"); for (i = 0; i < mac->mta_reg_count; i++) @@ -1114,6 +1232,70 @@ out: } /** + * igb_translate_register_82576 - Translate the proper register offset + * @reg: e1000 register to be read + * + * Registers in 82576 are located in different offsets than other adapters + * even though they function in the same manner. This function takes in + * the name of the register to read and returns the correct offset for + * 82576 silicon. + **/ +u32 igb_translate_register_82576(u32 reg) +{ + /* + * Some of the Kawela registers are located at different + * offsets than they are in older adapters. + * Despite the difference in location, the registers + * function in the same manner. + */ + switch (reg) { + case E1000_TDBAL(0): + reg = 0x0E000; + break; + case E1000_TDBAH(0): + reg = 0x0E004; + break; + case E1000_TDLEN(0): + reg = 0x0E008; + break; + case E1000_TDH(0): + reg = 0x0E010; + break; + case E1000_TDT(0): + reg = 0x0E018; + break; + case E1000_TXDCTL(0): + reg = 0x0E028; + break; + case E1000_RDBAL(0): + reg = 0x0C000; + break; + case E1000_RDBAH(0): + reg = 0x0C004; + break; + case E1000_RDLEN(0): + reg = 0x0C008; + break; + case E1000_RDH(0): + reg = 0x0C010; + break; + case E1000_RDT(0): + reg = 0x0C018; + break; + case E1000_RXDCTL(0): + reg = 0x0C028; + break; + case E1000_SRRCTL(0): + reg = 0x0C00C; + break; + default: + break; + } + + return reg; +} + +/** * igb_reset_init_script_82575 - Inits HW defaults after reset * @hw: pointer to the HW structure * @@ -1304,7 +1486,7 @@ static struct e1000_mac_operations e1000_mac_ops_82575 = { .reset_hw = igb_reset_hw_82575, .init_hw = igb_init_hw_82575, .check_for_link = igb_check_for_link_82575, - .rar_set = igb_rar_set_82575, + .rar_set = igb_rar_set, .read_mac_addr = igb_read_mac_addr_82575, .get_speed_and_duplex = igb_get_speed_and_duplex_copper, }; |