@@ -5,6 +5,7 @@
#include "txgbe_type.h"
#include "txgbe_vf.h"
#include "txgbe_eeprom.h"
+#include "txgbe_mng.h"
#include "txgbe_hw.h"
/**
@@ -69,18 +70,131 @@ s32 txgbe_init_hw(struct txgbe_hw *hw)
return status;
}
+/**
+ * txgbe_validate_mac_addr - Validate MAC address
+ * @mac_addr: pointer to MAC address.
+ *
+ * Tests a MAC address to ensure it is a valid Individual Address.
+ **/
+s32 txgbe_validate_mac_addr(u8 *mac_addr)
+{
+ s32 status = 0;
+
+ DEBUGFUNC("txgbe_validate_mac_addr");
+
+ /* Make sure it is not a multicast address */
+ if (TXGBE_IS_MULTICAST(mac_addr)) {
+ status = TXGBE_ERR_INVALID_MAC_ADDR;
+ /* Not a broadcast address */
+ } else if (TXGBE_IS_BROADCAST(mac_addr)) {
+ status = TXGBE_ERR_INVALID_MAC_ADDR;
+ /* Reject the zero address */
+ } else if (mac_addr[0] == 0 && mac_addr[1] == 0 && mac_addr[2] == 0 &&
+ mac_addr[3] == 0 && mac_addr[4] == 0 && mac_addr[5] == 0) {
+ status = TXGBE_ERR_INVALID_MAC_ADDR;
+ }
+ return status;
+}
+
s32 txgbe_set_rar(struct txgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
u32 enable_addr)
{
- RTE_SET_USED(hw);
- RTE_SET_USED(index);
- RTE_SET_USED(addr);
- RTE_SET_USED(vmdq);
- RTE_SET_USED(enable_addr);
+ u32 rar_low, rar_high;
+ u32 rar_entries = hw->mac.num_rar_entries;
- return 0;
+ DEBUGFUNC("txgbe_set_rar");
+
+ /* Make sure we are using a valid rar index range */
+ if (index >= rar_entries) {
+ DEBUGOUT("RAR index %d is out of range.\n", index);
+ return TXGBE_ERR_INVALID_ARGUMENT;
+ }
+
+ /* setup VMDq pool selection before this RAR gets enabled */
+ hw->mac.set_vmdq(hw, index, vmdq);
+
+ /*
+ * HW expects these in little endian so we reverse the byte
+ * order from network order (big endian) to little endian
+ */
+ rar_low = TXGBE_ETHADDRL_AD0(addr[5]) |
+ TXGBE_ETHADDRL_AD1(addr[4]) |
+ TXGBE_ETHADDRL_AD2(addr[3]) |
+ TXGBE_ETHADDRL_AD3(addr[2]);
+ /*
+ * Some parts put the VMDq setting in the extra RAH bits,
+ * so save everything except the lower 16 bits that hold part
+ * of the address and the address valid bit.
+ */
+ rar_high = rd32(hw, TXGBE_ETHADDRH);
+ rar_high &= ~TXGBE_ETHADDRH_AD_MASK;
+ rar_high |= (TXGBE_ETHADDRH_AD4(addr[1]) |
+ TXGBE_ETHADDRH_AD5(addr[0]));
+
+ rar_high &= ~TXGBE_ETHADDRH_VLD;
+ if (enable_addr != 0)
+ rar_high |= TXGBE_ETHADDRH_VLD;
+
+ wr32(hw, TXGBE_ETHADDRIDX, index);
+ wr32(hw, TXGBE_ETHADDRL, rar_low);
+ wr32(hw, TXGBE_ETHADDRH, rar_high);
+}
+
+/**
+ * txgbe_clear_tx_pending - Clear pending TX work from the PCIe fifo
+ * @hw: pointer to the hardware structure
+ *
+ * The MACs can experience issues if TX work is still pending
+ * when a reset occurs. This function prevents this by flushing the PCIe
+ * buffers on the system.
+ **/
+void txgbe_clear_tx_pending(struct txgbe_hw *hw)
+{
+ u32 hlreg0, i, poll;
+
+ /*
+ * If double reset is not requested then all transactions should
+ * already be clear and as such there is no work to do
+ */
+ if (!(hw->mac.flags & TXGBE_FLAGS_DOUBLE_RESET_REQUIRED))
+ return;
+
+ hlreg0 = rd32(hw, TXGBE_PSRCTL);
+ wr32(hw, TXGBE_PSRCTL, hlreg0 | TXGBE_PSRCTL_LBENA);
+
+ /* Wait for a last completion before clearing buffers */
+ txgbe_flush(hw);
+ msec_delay(3);
+
+ /*
+ * Before proceeding, make sure that the PCIe block does not have
+ * transactions pending.
+ */
+ poll = (800 * 11) / 10;
+ for (i = 0; i < poll; i++) {
+ usec_delay(100);
+ }
+
+ /* Flush all writes and allow 20usec for all transactions to clear */
+ txgbe_flush(hw);
+ usec_delay(20);
+
+ /* restore previous register values */
+ wr32(hw, TXGBE_PSRCTL, hlreg0);
}
+/**
+ * txgbe_init_shared_code - Initialize the shared code
+ * @hw: pointer to hardware structure
+ *
+ * This will assign function pointers and assign the MAC type and PHY code.
+ * Does not touch the hardware. This function must be called prior to any
+ * other function in the shared code. The txgbe_hw structure should be
+ * memset to 0 prior to calling this function. The following fields in
+ * hw structure should be filled in prior to calling this function:
+ * hw_addr, back, device_id, vendor_id, subsystem_device_id,
+ * subsystem_vendor_id, and revision_id
+ **/
s32 txgbe_init_shared_code(struct txgbe_hw *hw)
{
s32 status;
@@ -109,7 +223,6 @@ s32 txgbe_init_shared_code(struct txgbe_hw *hw)
hw->bus.set_lan_id(hw);
return status;
-
}
/**
@@ -172,6 +285,11 @@ s32 txgbe_init_ops_pf(struct txgbe_hw *hw)
struct txgbe_mac_info *mac = &hw->mac;
struct txgbe_rom_info *rom = &hw->rom;
+ /* MAC */
+ mac->init_hw = txgbe_init_hw;
+ mac->start_hw = txgbe_start_hw_raptor;
+ mac->reset_hw = txgbe_reset_hw;
+
/* EEPROM */
rom->init_params = txgbe_init_eeprom_params;
rom->read16 = txgbe_ee_read16;
@@ -186,13 +304,171 @@ s32 txgbe_init_ops_pf(struct txgbe_hw *hw)
rom->update_checksum = txgbe_update_eeprom_checksum;
rom->calc_checksum = txgbe_calc_eeprom_checksum;
- /* MAC */
- mac->init_hw = txgbe_init_hw;
- mac->start_hw = txgbe_start_hw_raptor;
-
return 0;
}
+static int
+txgbe_check_flash_load(struct txgbe_hw *hw, u32 check_bit)
+{
+ u32 reg = 0;
+ u32 i;
+ int err = 0;
+ /* if there's flash existing */
+ if (!(rd32(hw, TXGBE_SPISTAT) & TXGBE_SPISTAT_BPFLASH)) {
+ /* wait hw load flash done */
+ for (i = 0; i < 10; i++) {
+ reg = rd32(hw, TXGBE_ILDRSTAT);
+ if (!(reg & check_bit)) {
+ /* done */
+ break;
+ }
+ msleep(100);
+ }
+ if (i == 10) {
+ err = TXGBE_ERR_FLASH_LOADING_FAILED;
+ }
+ }
+ return err;
+}
+
+static void
+txgbe_reset_misc(struct txgbe_hw *hw)
+{
+ RTE_SET_USED(hw);
+}
+
+/**
+ * txgbe_reset_hw - Perform hardware reset
+ * @hw: pointer to hardware structure
+ *
+ * Resets the hardware by resetting the transmit and receive units, masks
+ * and clears all interrupts, perform a PHY reset, and perform a link (MAC)
+ * reset.
+ **/
+s32 txgbe_reset_hw(struct txgbe_hw *hw)
+{
+ s32 status;
+ u32 autoc;
+
+ DEBUGFUNC("txgbe_reset_hw");
+
+ /* Call adapter stop to disable tx/rx and clear interrupts */
+ status = hw->mac.stop_hw(hw);
+ if (status != 0)
+ return status;
+
+ /* flush pending Tx transactions */
+ txgbe_clear_tx_pending(hw);
+
+ /* Identify PHY and related function pointers */
+ status = hw->phy.init(hw);
+ if (status == TXGBE_ERR_SFP_NOT_SUPPORTED)
+ return status;
+
+ /* Setup SFP module if there is one present. */
+ if (hw->phy.sfp_setup_needed) {
+ status = hw->mac.setup_sfp(hw);
+ hw->phy.sfp_setup_needed = false;
+ }
+ if (status == TXGBE_ERR_SFP_NOT_SUPPORTED)
+ return status;
+
+ /* Reset PHY */
+ if (hw->phy.reset_disable == false)
+ hw->phy.reset(hw);
+
+ /* remember AUTOC from before we reset */
+ autoc = hw->mac.autoc_read(hw);
+
+mac_reset_top:
+ /*
+ * Issue global reset to the MAC. Needs to be SW reset if link is up.
+ * If link reset is used when link is up, it might reset the PHY when
+ * mng is using it. If link is down or the flag to force full link
+ * reset is set, then perform link reset.
+ */
+ if (txgbe_mng_present(hw)) {
+ txgbe_hic_reset(hw);
+ } else {
+ wr32(hw, TXGBE_RST, TXGBE_RST_LAN(hw->bus.lan_id));
+ txgbe_flush(hw);
+ }
+ usec_delay(10);
+
+ txgbe_reset_misc(hw);
+
+ if (hw->bus.lan_id == 0) {
+ status = txgbe_check_flash_load(hw,
+ TXGBE_ILDRSTAT_SWRST_LAN0);
+ } else {
+ status = txgbe_check_flash_load(hw,
+ TXGBE_ILDRSTAT_SWRST_LAN1);
+ }
+ if (status != 0)
+ return status;
+
+ msec_delay(50);
+
+ /*
+ * Double resets are required for recovery from certain error
+ * conditions. Between resets, it is necessary to stall to
+ * allow time for any pending HW events to complete.
+ */
+ if (hw->mac.flags & TXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
+ hw->mac.flags &= ~TXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
+ goto mac_reset_top;
+ }
+
+ /*
+ * Store the original AUTOC/AUTOC2 values if they have not been
+ * stored off yet. Otherwise restore the stored original
+ * values since the reset operation sets back to defaults.
+ */
+ if (hw->mac.orig_link_settings_stored == false) {
+ hw->mac.orig_autoc = hw->mac.autoc_read(hw);
+ hw->mac.autoc_write(hw, hw->mac.orig_autoc);
+ hw->mac.orig_link_settings_stored = true;
+ } else {
+ hw->mac.orig_autoc = autoc;
+ }
+
+ /* Store the permanent mac address */
+ hw->mac.get_mac_addr(hw, hw->mac.perm_addr);
+
+ /*
+ * Store MAC address from RAR0, clear receive address registers, and
+ * clear the multicast table. Also reset num_rar_entries to 128,
+ * since we modify this value when programming the SAN MAC address.
+ */
+ hw->mac.num_rar_entries = 128;
+ hw->mac.init_rx_addrs(hw);
+
+ /* Store the permanent SAN mac address */
+ hw->mac.get_san_mac_addr(hw, hw->mac.san_addr);
+
+ /* Add the SAN MAC address to the RAR only if it's a valid address */
+ if (txgbe_validate_mac_addr(hw->mac.san_addr) == 0) {
+ /* Save the SAN MAC RAR index */
+ hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1;
+
+ hw->mac.set_rar(hw, hw->mac.san_mac_rar_index,
+ hw->mac.san_addr, 0, true);
+
+ /* clear VMDq pool/queue selection for this RAR */
+ hw->mac.clear_vmdq(hw, hw->mac.san_mac_rar_index,
+ BIT_MASK32);
+
+ /* Reserve the last RAR for the SAN MAC address */
+ hw->mac.num_rar_entries--;
+ }
+
+ /* Store the alternative WWNN/WWPN prefix */
+ hw->mac.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
+ &hw->mac.wwpn_prefix);
+
+ return status;
+}
+
/**
* txgbe_start_hw_raptor - Prepare hardware for Tx/Rx
* @hw: pointer to hardware structure
@@ -15,7 +15,12 @@ s32 txgbe_start_hw_raptor(struct txgbe_hw *hw);
s32 txgbe_set_rar(struct txgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
u32 enable_addr);
+
+s32 txgbe_validate_mac_addr(u8 *mac_addr);
+void txgbe_clear_tx_pending(struct txgbe_hw *hw);
s32 txgbe_init_shared_code(struct txgbe_hw *hw);
s32 txgbe_set_mac_type(struct txgbe_hw *hw);
s32 txgbe_init_ops_pf(struct txgbe_hw *hw);
+s32 txgbe_reset_hw(struct txgbe_hw *hw);
+s32 txgbe_start_hw_raptor(struct txgbe_hw *hw);
#endif /* _TXGBE_HW_H_ */
@@ -207,6 +207,7 @@ struct txgbe_flash_info {
u16 address_bits;
};
+#define TXGBE_FLAGS_DOUBLE_RESET_REQUIRED 0x01
struct txgbe_mac_info {
s32 (*init_hw)(struct txgbe_hw *);
s32 (*reset_hw)(struct txgbe_hw *);
@@ -316,9 +317,18 @@ struct txgbe_mac_info {
u8 addr[ETH_ADDR_LEN];
u8 perm_addr[ETH_ADDR_LEN];
u8 san_addr[ETH_ADDR_LEN];
+ /* prefix for World Wide Node Name (WWNN) */
+ u16 wwnn_prefix;
+ /* prefix for World Wide Port Name (WWPN) */
+ u16 wwpn_prefix;
u32 num_rar_entries;
+
+ u8 san_mac_rar_index;
+ u64 orig_autoc; /* cached value of AUTOC */
+ bool orig_link_settings_stored;
bool autotry_restart;
+ u8 flags;
u32 max_link_up_time;
};
@@ -354,6 +364,8 @@ struct txgbe_phy_info {
enum txgbe_phy_type type;
enum txgbe_sfp_type sfp_type;
+ bool sfp_setup_needed;
+ bool reset_disable;
};
struct txgbe_mbx_info {