#include "txgbe_type.h"
#include "txgbe_eeprom.h"
+#include "txgbe_mng.h"
#include "txgbe_hw.h"
#define TXGBE_RAPTOR_RAR_ENTRIES 128
+/**
+ * txgbe_init_hw - Generic hardware initialization
+ * @hw: pointer to hardware structure
+ *
+ * Initialize the hardware by resetting the hardware, filling the bus info
+ * structure and media type, clears all on chip counters, initializes receive
+ * address registers, multicast table, VLAN filter table, calls routine to set
+ * up link and flow control settings, and leaves transmit and receive units
+ * disabled and uninitialized
+ **/
+s32 txgbe_init_hw(struct txgbe_hw *hw)
+{
+ s32 status;
+
+ DEBUGFUNC("txgbe_init_hw");
+
+ /* Reset the hardware */
+ status = hw->mac.reset_hw(hw);
+ if (status == 0 || status == TXGBE_ERR_SFP_NOT_PRESENT) {
+ /* Start the HW */
+ status = hw->mac.start_hw(hw);
+ }
+
+ if (status != 0)
+ DEBUGOUT("Failed to initialize HW, STATUS = %d\n", status);
+
+ return status;
+}
+
+
/**
* txgbe_set_lan_id_multi_port - Set LAN id for PCIe multiple port devices
* @hw: pointer to the HW structure
bus->func = bus->lan_id;
}
+/**
+ * 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;
+}
+
+/**
+ * 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
bus->set_lan_id = txgbe_set_lan_id_multi_port;
/* MAC */
+ mac->init_hw = txgbe_init_hw;
+ mac->reset_hw = txgbe_reset_hw;
mac->num_rar_entries = TXGBE_RAPTOR_RAR_ENTRIES;
/* EEPROM */
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;
+}
+
+/**
+ * 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)
+ 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);
+
+ 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) {
+ 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;
+}
+
return -EIO;
}
+ err = hw->mac.init_hw(hw);
+
+ /*
+ * Devices with copper phys will fail to initialise if txgbe_init_hw()
+ * is called too soon after the kernel driver unbinding/binding occurs.
+ * The failure occurs in txgbe_identify_phy() for all devices,
+ * but for non-copper devies, txgbe_identify_sfp_module() is
+ * also called. See txgbe_identify_phy(). The reason for the
+ * failure is not known, and only occuts when virtualisation features
+ * are disabled in the bios. A delay of 200ms was found to be enough by
+ * trial-and-error, and is doubled to be safe.
+ */
+ if (err && hw->phy.media_type == txgbe_media_type_copper) {
+ rte_delay_ms(200);
+ err = hw->mac.init_hw(hw);
+ }
+
+ if (err == TXGBE_ERR_SFP_NOT_PRESENT)
+ err = 0;
+
+ if (err == TXGBE_ERR_EEPROM_VERSION) {
+ PMD_INIT_LOG(ERR, "This device is a pre-production adapter/"
+ "LOM. Please be aware there may be issues associated "
+ "with your hardware.");
+ PMD_INIT_LOG(ERR, "If you are experiencing problems "
+ "please contact your hardware representative "
+ "who provided you with this hardware.");
+ } else if (err == TXGBE_ERR_SFP_NOT_SUPPORTED) {
+ PMD_INIT_LOG(ERR, "Unsupported SFP+ Module");
+ }
+ if (err) {
+ PMD_INIT_LOG(ERR, "Hardware Initialization Failure: %d", err);
+ return -EIO;
+ }
+
/* Allocate memory for storing MAC addresses */
eth_dev->data->mac_addrs = rte_zmalloc("txgbe", RTE_ETHER_ADDR_LEN *
hw->mac.num_rar_entries, 0);
git.droids-corp.org / dpdk.git / commitdiff