--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/queue.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdarg.h>
+
+#include <rte_common.h>
+#include <rte_interrupts.h>
+#include <rte_byteorder.h>
+#include <rte_log.h>
+#include <rte_debug.h>
+#include <rte_pci.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_eal.h>
+#include <rte_atomic.h>
+#include <rte_malloc.h>
+#include <rte_dev.h>
+
+#include "e1000_logs.h"
+#include "base/e1000_api.h"
+#include "e1000_ethdev.h"
+
+#define EM_EIAC 0x000DC
+
+#define PMD_ROUNDUP(x,y) (((x) + (y) - 1)/(y) * (y))
+
+
+static int eth_em_configure(struct rte_eth_dev *dev);
+static int eth_em_start(struct rte_eth_dev *dev);
+static void eth_em_stop(struct rte_eth_dev *dev);
+static void eth_em_close(struct rte_eth_dev *dev);
+static void eth_em_promiscuous_enable(struct rte_eth_dev *dev);
+static void eth_em_promiscuous_disable(struct rte_eth_dev *dev);
+static void eth_em_allmulticast_enable(struct rte_eth_dev *dev);
+static void eth_em_allmulticast_disable(struct rte_eth_dev *dev);
+static int eth_em_link_update(struct rte_eth_dev *dev,
+ int wait_to_complete);
+static void eth_em_stats_get(struct rte_eth_dev *dev,
+ struct rte_eth_stats *rte_stats);
+static void eth_em_stats_reset(struct rte_eth_dev *dev);
+static void eth_em_infos_get(struct rte_eth_dev *dev,
+ struct rte_eth_dev_info *dev_info);
+static int eth_em_flow_ctrl_get(struct rte_eth_dev *dev,
+ struct rte_eth_fc_conf *fc_conf);
+static int eth_em_flow_ctrl_set(struct rte_eth_dev *dev,
+ struct rte_eth_fc_conf *fc_conf);
+static int eth_em_interrupt_setup(struct rte_eth_dev *dev);
+static int eth_em_rxq_interrupt_setup(struct rte_eth_dev *dev);
+static int eth_em_interrupt_get_status(struct rte_eth_dev *dev);
+static int eth_em_interrupt_action(struct rte_eth_dev *dev);
+static void eth_em_interrupt_handler(struct rte_intr_handle *handle,
+ void *param);
+
+static int em_hw_init(struct e1000_hw *hw);
+static int em_hardware_init(struct e1000_hw *hw);
+static void em_hw_control_acquire(struct e1000_hw *hw);
+static void em_hw_control_release(struct e1000_hw *hw);
+static void em_init_manageability(struct e1000_hw *hw);
+static void em_release_manageability(struct e1000_hw *hw);
+
+static int eth_em_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
+
+static int eth_em_vlan_filter_set(struct rte_eth_dev *dev,
+ uint16_t vlan_id, int on);
+static void eth_em_vlan_offload_set(struct rte_eth_dev *dev, int mask);
+static void em_vlan_hw_filter_enable(struct rte_eth_dev *dev);
+static void em_vlan_hw_filter_disable(struct rte_eth_dev *dev);
+static void em_vlan_hw_strip_enable(struct rte_eth_dev *dev);
+static void em_vlan_hw_strip_disable(struct rte_eth_dev *dev);
+
+/*
+static void eth_em_vlan_filter_set(struct rte_eth_dev *dev,
+ uint16_t vlan_id, int on);
+*/
+
+static int eth_em_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id);
+static int eth_em_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id);
+static void em_lsc_intr_disable(struct e1000_hw *hw);
+static void em_rxq_intr_enable(struct e1000_hw *hw);
+static void em_rxq_intr_disable(struct e1000_hw *hw);
+
+static int eth_em_led_on(struct rte_eth_dev *dev);
+static int eth_em_led_off(struct rte_eth_dev *dev);
+
+static int em_get_rx_buffer_size(struct e1000_hw *hw);
+static void eth_em_rar_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
+ uint32_t index, uint32_t pool);
+static void eth_em_rar_clear(struct rte_eth_dev *dev, uint32_t index);
+
+static int eth_em_set_mc_addr_list(struct rte_eth_dev *dev,
+ struct ether_addr *mc_addr_set,
+ uint32_t nb_mc_addr);
+
+#define EM_FC_PAUSE_TIME 0x0680
+#define EM_LINK_UPDATE_CHECK_TIMEOUT 90 /* 9s */
+#define EM_LINK_UPDATE_CHECK_INTERVAL 100 /* ms */
+
+static enum e1000_fc_mode em_fc_setting = e1000_fc_full;
+
+/*
+ * The set of PCI devices this driver supports
+ */
+static const struct rte_pci_id pci_id_em_map[] = {
+
+#define RTE_PCI_DEV_ID_DECL_EM(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
+#include "rte_pci_dev_ids.h"
+
+{0},
+};
+
+static const struct eth_dev_ops eth_em_ops = {
+ .dev_configure = eth_em_configure,
+ .dev_start = eth_em_start,
+ .dev_stop = eth_em_stop,
+ .dev_close = eth_em_close,
+ .promiscuous_enable = eth_em_promiscuous_enable,
+ .promiscuous_disable = eth_em_promiscuous_disable,
+ .allmulticast_enable = eth_em_allmulticast_enable,
+ .allmulticast_disable = eth_em_allmulticast_disable,
+ .link_update = eth_em_link_update,
+ .stats_get = eth_em_stats_get,
+ .stats_reset = eth_em_stats_reset,
+ .dev_infos_get = eth_em_infos_get,
+ .mtu_set = eth_em_mtu_set,
+ .vlan_filter_set = eth_em_vlan_filter_set,
+ .vlan_offload_set = eth_em_vlan_offload_set,
+ .rx_queue_setup = eth_em_rx_queue_setup,
+ .rx_queue_release = eth_em_rx_queue_release,
+ .rx_queue_count = eth_em_rx_queue_count,
+ .rx_descriptor_done = eth_em_rx_descriptor_done,
+ .tx_queue_setup = eth_em_tx_queue_setup,
+ .tx_queue_release = eth_em_tx_queue_release,
+ .rx_queue_intr_enable = eth_em_rx_queue_intr_enable,
+ .rx_queue_intr_disable = eth_em_rx_queue_intr_disable,
+ .dev_led_on = eth_em_led_on,
+ .dev_led_off = eth_em_led_off,
+ .flow_ctrl_get = eth_em_flow_ctrl_get,
+ .flow_ctrl_set = eth_em_flow_ctrl_set,
+ .mac_addr_add = eth_em_rar_set,
+ .mac_addr_remove = eth_em_rar_clear,
+ .set_mc_addr_list = eth_em_set_mc_addr_list,
+ .rxq_info_get = em_rxq_info_get,
+ .txq_info_get = em_txq_info_get,
+};
+
+/**
+ * Atomically reads the link status information from global
+ * structure rte_eth_dev.
+ *
+ * @param dev
+ * - Pointer to the structure rte_eth_dev to read from.
+ * - Pointer to the buffer to be saved with the link status.
+ *
+ * @return
+ * - On success, zero.
+ * - On failure, negative value.
+ */
+static inline int
+rte_em_dev_atomic_read_link_status(struct rte_eth_dev *dev,
+ struct rte_eth_link *link)
+{
+ struct rte_eth_link *dst = link;
+ struct rte_eth_link *src = &(dev->data->dev_link);
+
+ if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
+ *(uint64_t *)src) == 0)
+ return -1;
+
+ return 0;
+}
+
+/**
+ * Atomically writes the link status information into global
+ * structure rte_eth_dev.
+ *
+ * @param dev
+ * - Pointer to the structure rte_eth_dev to read from.
+ * - Pointer to the buffer to be saved with the link status.
+ *
+ * @return
+ * - On success, zero.
+ * - On failure, negative value.
+ */
+static inline int
+rte_em_dev_atomic_write_link_status(struct rte_eth_dev *dev,
+ struct rte_eth_link *link)
+{
+ struct rte_eth_link *dst = &(dev->data->dev_link);
+ struct rte_eth_link *src = link;
+
+ if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
+ *(uint64_t *)src) == 0)
+ return -1;
+
+ return 0;
+}
+
+/**
+ * eth_em_dev_is_ich8 - Check for ICH8 device
+ * @hw: pointer to the HW structure
+ *
+ * return TRUE for ICH8, otherwise FALSE
+ **/
+static bool
+eth_em_dev_is_ich8(struct e1000_hw *hw)
+{
+ DEBUGFUNC("eth_em_dev_is_ich8");
+
+ switch (hw->device_id) {
+ case E1000_DEV_ID_PCH_LPT_I217_LM:
+ case E1000_DEV_ID_PCH_LPT_I217_V:
+ case E1000_DEV_ID_PCH_LPTLP_I218_LM:
+ case E1000_DEV_ID_PCH_LPTLP_I218_V:
+ case E1000_DEV_ID_PCH_I218_V2:
+ case E1000_DEV_ID_PCH_I218_LM2:
+ case E1000_DEV_ID_PCH_I218_V3:
+ case E1000_DEV_ID_PCH_I218_LM3:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+static int
+eth_em_dev_init(struct rte_eth_dev *eth_dev)
+{
+ struct rte_pci_device *pci_dev;
+ struct e1000_adapter *adapter =
+ E1000_DEV_PRIVATE(eth_dev->data->dev_private);
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+ struct e1000_vfta * shadow_vfta =
+ E1000_DEV_PRIVATE_TO_VFTA(eth_dev->data->dev_private);
+
+ pci_dev = eth_dev->pci_dev;
+
+ eth_dev->dev_ops = ð_em_ops;
+ eth_dev->rx_pkt_burst = (eth_rx_burst_t)ð_em_recv_pkts;
+ eth_dev->tx_pkt_burst = (eth_tx_burst_t)ð_em_xmit_pkts;
+
+ /* for secondary processes, we don't initialise any further as primary
+ * has already done this work. Only check we don't need a different
+ * RX function */
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY){
+ if (eth_dev->data->scattered_rx)
+ eth_dev->rx_pkt_burst =
+ (eth_rx_burst_t)ð_em_recv_scattered_pkts;
+ return 0;
+ }
+
+ rte_eth_copy_pci_info(eth_dev, pci_dev);
+
+ hw->hw_addr = (void *)pci_dev->mem_resource[0].addr;
+ hw->device_id = pci_dev->id.device_id;
+ adapter->stopped = 0;
+
+ /* For ICH8 support we'll need to map the flash memory BAR */
+ if (eth_em_dev_is_ich8(hw))
+ hw->flash_address = (void *)pci_dev->mem_resource[1].addr;
+
+ if (e1000_setup_init_funcs(hw, TRUE) != E1000_SUCCESS ||
+ em_hw_init(hw) != 0) {
+ PMD_INIT_LOG(ERR, "port_id %d vendorID=0x%x deviceID=0x%x: "
+ "failed to init HW",
+ eth_dev->data->port_id, pci_dev->id.vendor_id,
+ pci_dev->id.device_id);
+ return -ENODEV;
+ }
+
+ /* Allocate memory for storing MAC addresses */
+ eth_dev->data->mac_addrs = rte_zmalloc("e1000", ETHER_ADDR_LEN *
+ hw->mac.rar_entry_count, 0);
+ if (eth_dev->data->mac_addrs == NULL) {
+ PMD_INIT_LOG(ERR, "Failed to allocate %d bytes needed to "
+ "store MAC addresses",
+ ETHER_ADDR_LEN * hw->mac.rar_entry_count);
+ return -ENOMEM;
+ }
+
+ /* Copy the permanent MAC address */
+ ether_addr_copy((struct ether_addr *) hw->mac.addr,
+ eth_dev->data->mac_addrs);
+
+ /* initialize the vfta */
+ memset(shadow_vfta, 0, sizeof(*shadow_vfta));
+
+ PMD_INIT_LOG(DEBUG, "port_id %d vendorID=0x%x deviceID=0x%x",
+ eth_dev->data->port_id, pci_dev->id.vendor_id,
+ pci_dev->id.device_id);
+
+ rte_intr_callback_register(&(pci_dev->intr_handle),
+ eth_em_interrupt_handler, (void *)eth_dev);
+
+ return 0;
+}
+
+static int
+eth_em_dev_uninit(struct rte_eth_dev *eth_dev)
+{
+ struct rte_pci_device *pci_dev;
+ struct e1000_adapter *adapter =
+ E1000_DEV_PRIVATE(eth_dev->data->dev_private);
+
+ PMD_INIT_FUNC_TRACE();
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return -EPERM;
+
+ pci_dev = eth_dev->pci_dev;
+
+ if (adapter->stopped == 0)
+ eth_em_close(eth_dev);
+
+ eth_dev->dev_ops = NULL;
+ eth_dev->rx_pkt_burst = NULL;
+ eth_dev->tx_pkt_burst = NULL;
+
+ rte_free(eth_dev->data->mac_addrs);
+ eth_dev->data->mac_addrs = NULL;
+
+ /* disable uio intr before callback unregister */
+ rte_intr_disable(&(pci_dev->intr_handle));
+ rte_intr_callback_unregister(&(pci_dev->intr_handle),
+ eth_em_interrupt_handler, (void *)eth_dev);
+
+ return 0;
+}
+
+static struct eth_driver rte_em_pmd = {
+ .pci_drv = {
+ .name = "rte_em_pmd",
+ .id_table = pci_id_em_map,
+ .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC |
+ RTE_PCI_DRV_DETACHABLE,
+ },
+ .eth_dev_init = eth_em_dev_init,
+ .eth_dev_uninit = eth_em_dev_uninit,
+ .dev_private_size = sizeof(struct e1000_adapter),
+};
+
+static int
+rte_em_pmd_init(const char *name __rte_unused, const char *params __rte_unused)
+{
+ rte_eth_driver_register(&rte_em_pmd);
+ return 0;
+}
+
+static int
+em_hw_init(struct e1000_hw *hw)
+{
+ int diag;
+
+ diag = hw->mac.ops.init_params(hw);
+ if (diag != 0) {
+ PMD_INIT_LOG(ERR, "MAC Initialization Error");
+ return diag;
+ }
+ diag = hw->nvm.ops.init_params(hw);
+ if (diag != 0) {
+ PMD_INIT_LOG(ERR, "NVM Initialization Error");
+ return diag;
+ }
+ diag = hw->phy.ops.init_params(hw);
+ if (diag != 0) {
+ PMD_INIT_LOG(ERR, "PHY Initialization Error");
+ return diag;
+ }
+ (void) e1000_get_bus_info(hw);
+
+ hw->mac.autoneg = 1;
+ hw->phy.autoneg_wait_to_complete = 0;
+ hw->phy.autoneg_advertised = E1000_ALL_SPEED_DUPLEX;
+
+ e1000_init_script_state_82541(hw, TRUE);
+ e1000_set_tbi_compatibility_82543(hw, TRUE);
+
+ /* Copper options */
+ if (hw->phy.media_type == e1000_media_type_copper) {
+ hw->phy.mdix = 0; /* AUTO_ALL_MODES */
+ hw->phy.disable_polarity_correction = 0;
+ hw->phy.ms_type = e1000_ms_hw_default;
+ }
+
+ /*
+ * Start from a known state, this is important in reading the nvm
+ * and mac from that.
+ */
+ e1000_reset_hw(hw);
+
+ /* Make sure we have a good EEPROM before we read from it */
+ if (e1000_validate_nvm_checksum(hw) < 0) {
+ /*
+ * Some PCI-E parts fail the first check due to
+ * the link being in sleep state, call it again,
+ * if it fails a second time its a real issue.
+ */
+ diag = e1000_validate_nvm_checksum(hw);
+ if (diag < 0) {
+ PMD_INIT_LOG(ERR, "EEPROM checksum invalid");
+ goto error;
+ }
+ }
+
+ /* Read the permanent MAC address out of the EEPROM */
+ diag = e1000_read_mac_addr(hw);
+ if (diag != 0) {
+ PMD_INIT_LOG(ERR, "EEPROM error while reading MAC address");
+ goto error;
+ }
+
+ /* Now initialize the hardware */
+ diag = em_hardware_init(hw);
+ if (diag != 0) {
+ PMD_INIT_LOG(ERR, "Hardware initialization failed");
+ goto error;
+ }
+
+ hw->mac.get_link_status = 1;
+
+ /* Indicate SOL/IDER usage */
+ diag = e1000_check_reset_block(hw);
+ if (diag < 0) {
+ PMD_INIT_LOG(ERR, "PHY reset is blocked due to "
+ "SOL/IDER session");
+ }
+ return 0;
+
+error:
+ em_hw_control_release(hw);
+ return diag;
+}
+
+static int
+eth_em_configure(struct rte_eth_dev *dev)
+{
+ struct e1000_interrupt *intr =
+ E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
+
+ PMD_INIT_FUNC_TRACE();
+ intr->flags |= E1000_FLAG_NEED_LINK_UPDATE;
+ PMD_INIT_FUNC_TRACE();
+
+ return 0;
+}
+
+static void
+em_set_pba(struct e1000_hw *hw)
+{
+ uint32_t pba;
+
+ /*
+ * Packet Buffer Allocation (PBA)
+ * Writing PBA sets the receive portion of the buffer
+ * the remainder is used for the transmit buffer.
+ * Devices before the 82547 had a Packet Buffer of 64K.
+ * After the 82547 the buffer was reduced to 40K.
+ */
+ switch (hw->mac.type) {
+ case e1000_82547:
+ case e1000_82547_rev_2:
+ /* 82547: Total Packet Buffer is 40K */
+ pba = E1000_PBA_22K; /* 22K for Rx, 18K for Tx */
+ break;
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_80003es2lan:
+ pba = E1000_PBA_32K; /* 32K for Rx, 16K for Tx */
+ break;
+ case e1000_82573: /* 82573: Total Packet Buffer is 32K */
+ pba = E1000_PBA_12K; /* 12K for Rx, 20K for Tx */
+ break;
+ case e1000_82574:
+ case e1000_82583:
+ pba = E1000_PBA_20K; /* 20K for Rx, 20K for Tx */
+ break;
+ case e1000_ich8lan:
+ pba = E1000_PBA_8K;
+ break;
+ case e1000_ich9lan:
+ case e1000_ich10lan:
+ pba = E1000_PBA_10K;
+ break;
+ case e1000_pchlan:
+ case e1000_pch2lan:
+ case e1000_pch_lpt:
+ pba = E1000_PBA_26K;
+ break;
+ default:
+ pba = E1000_PBA_40K; /* 40K for Rx, 24K for Tx */
+ }
+
+ E1000_WRITE_REG(hw, E1000_PBA, pba);
+}
+
+static int
+eth_em_start(struct rte_eth_dev *dev)
+{
+ struct e1000_adapter *adapter =
+ E1000_DEV_PRIVATE(dev->data->dev_private);
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
+ int ret, mask;
+ uint32_t intr_vector = 0;
+ uint32_t *speeds;
+ int num_speeds;
+ bool autoneg;
+
+ PMD_INIT_FUNC_TRACE();
+
+ eth_em_stop(dev);
+
+ e1000_power_up_phy(hw);
+
+ /* Set default PBA value */
+ em_set_pba(hw);
+
+ /* Put the address into the Receive Address Array */
+ e1000_rar_set(hw, hw->mac.addr, 0);
+
+ /*
+ * With the 82571 adapter, RAR[0] may be overwritten
+ * when the other port is reset, we make a duplicate
+ * in RAR[14] for that eventuality, this assures
+ * the interface continues to function.
+ */
+ if (hw->mac.type == e1000_82571) {
+ e1000_set_laa_state_82571(hw, TRUE);
+ e1000_rar_set(hw, hw->mac.addr, E1000_RAR_ENTRIES - 1);
+ }
+
+ /* Initialize the hardware */
+ if (em_hardware_init(hw)) {
+ PMD_INIT_LOG(ERR, "Unable to initialize the hardware");
+ return -EIO;
+ }
+
+ E1000_WRITE_REG(hw, E1000_VET, ETHER_TYPE_VLAN);
+
+ /* Configure for OS presence */
+ em_init_manageability(hw);
+
+ if (dev->data->dev_conf.intr_conf.rxq != 0) {
+ intr_vector = dev->data->nb_rx_queues;
+ if (rte_intr_efd_enable(intr_handle, intr_vector))
+ return -1;
+ }
+
+ if (rte_intr_dp_is_en(intr_handle)) {
+ intr_handle->intr_vec =
+ rte_zmalloc("intr_vec",
+ dev->data->nb_rx_queues * sizeof(int), 0);
+ if (intr_handle->intr_vec == NULL) {
+ PMD_INIT_LOG(ERR, "Failed to allocate %d rx_queues"
+ " intr_vec\n", dev->data->nb_rx_queues);
+ return -ENOMEM;
+ }
+
+ /* enable rx interrupt */
+ em_rxq_intr_enable(hw);
+ }
+
+ eth_em_tx_init(dev);
+
+ ret = eth_em_rx_init(dev);
+ if (ret) {
+ PMD_INIT_LOG(ERR, "Unable to initialize RX hardware");
+ em_dev_clear_queues(dev);
+ return ret;
+ }
+
+ e1000_clear_hw_cntrs_base_generic(hw);
+
+ mask = ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK | \
+ ETH_VLAN_EXTEND_MASK;
+ eth_em_vlan_offload_set(dev, mask);
+
+ /* Set Interrupt Throttling Rate to maximum allowed value. */
+ E1000_WRITE_REG(hw, E1000_ITR, UINT16_MAX);
+
+ /* Setup link speed and duplex */
+ speeds = &dev->data->dev_conf.link_speeds;
+ if (*speeds == ETH_LINK_SPEED_AUTONEG) {
+ hw->phy.autoneg_advertised = E1000_ALL_SPEED_DUPLEX;
+ } else {
+ num_speeds = 0;
+ autoneg = (*speeds & ETH_LINK_SPEED_FIXED) == 0;
+
+ /* Reset */
+ hw->phy.autoneg_advertised = 0;
+
+ if (*speeds & ~(ETH_LINK_SPEED_10M_HD | ETH_LINK_SPEED_10M |
+ ETH_LINK_SPEED_100M_HD | ETH_LINK_SPEED_100M |
+ ETH_LINK_SPEED_1G | ETH_LINK_SPEED_FIXED)) {
+ num_speeds = -1;
+ goto error_invalid_config;
+ }
+ if (*speeds & ETH_LINK_SPEED_10M_HD) {
+ hw->phy.autoneg_advertised |= ADVERTISE_10_HALF;
+ num_speeds++;
+ }
+ if (*speeds & ETH_LINK_SPEED_10M) {
+ hw->phy.autoneg_advertised |= ADVERTISE_10_FULL;
+ num_speeds++;
+ }
+ if (*speeds & ETH_LINK_SPEED_100M_HD) {
+ hw->phy.autoneg_advertised |= ADVERTISE_100_HALF;
+ num_speeds++;
+ }
+ if (*speeds & ETH_LINK_SPEED_100M) {
+ hw->phy.autoneg_advertised |= ADVERTISE_100_FULL;
+ num_speeds++;
+ }
+ if (*speeds & ETH_LINK_SPEED_1G) {
+ hw->phy.autoneg_advertised |= ADVERTISE_1000_FULL;
+ num_speeds++;
+ }
+ if (num_speeds == 0 || (!autoneg && (num_speeds > 1)))
+ goto error_invalid_config;
+ }
+
+ e1000_setup_link(hw);
+
+ if (rte_intr_allow_others(intr_handle)) {
+ /* check if lsc interrupt is enabled */
+ if (dev->data->dev_conf.intr_conf.lsc != 0) {
+ ret = eth_em_interrupt_setup(dev);
+ if (ret) {
+ PMD_INIT_LOG(ERR, "Unable to setup interrupts");
+ em_dev_clear_queues(dev);
+ return ret;
+ }
+ }
+ } else {
+ rte_intr_callback_unregister(intr_handle,
+ eth_em_interrupt_handler,
+ (void *)dev);
+ if (dev->data->dev_conf.intr_conf.lsc != 0)
+ PMD_INIT_LOG(INFO, "lsc won't enable because of"
+ " no intr multiplex\n");
+ }
+ /* check if rxq interrupt is enabled */
+ if (dev->data->dev_conf.intr_conf.rxq != 0)
+ eth_em_rxq_interrupt_setup(dev);
+
+ rte_intr_enable(intr_handle);
+
+ adapter->stopped = 0;
+
+ PMD_INIT_LOG(DEBUG, "<<");
+
+ return 0;
+
+error_invalid_config:
+ PMD_INIT_LOG(ERR, "Invalid advertised speeds (%u) for port %u",
+ dev->data->dev_conf.link_speeds, dev->data->port_id);
+ em_dev_clear_queues(dev);
+ return -EINVAL;
+}
+
+/*********************************************************************
+ *
+ * This routine disables all traffic on the adapter by issuing a
+ * global reset on the MAC.
+ *
+ **********************************************************************/
+static void
+eth_em_stop(struct rte_eth_dev *dev)
+{
+ struct rte_eth_link link;
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
+
+ em_rxq_intr_disable(hw);
+ em_lsc_intr_disable(hw);
+
+ e1000_reset_hw(hw);
+ if (hw->mac.type >= e1000_82544)
+ E1000_WRITE_REG(hw, E1000_WUC, 0);
+
+ /* Power down the phy. Needed to make the link go down */
+ e1000_power_down_phy(hw);
+
+ em_dev_clear_queues(dev);
+
+ /* clear the recorded link status */
+ memset(&link, 0, sizeof(link));
+ rte_em_dev_atomic_write_link_status(dev, &link);
+
+ if (!rte_intr_allow_others(intr_handle))
+ /* resume to the default handler */
+ rte_intr_callback_register(intr_handle,
+ eth_em_interrupt_handler,
+ (void *)dev);
+
+ /* Clean datapath event and queue/vec mapping */
+ rte_intr_efd_disable(intr_handle);
+ if (intr_handle->intr_vec != NULL) {
+ rte_free(intr_handle->intr_vec);
+ intr_handle->intr_vec = NULL;
+ }
+}
+
+static void
+eth_em_close(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct e1000_adapter *adapter =
+ E1000_DEV_PRIVATE(dev->data->dev_private);
+
+ eth_em_stop(dev);
+ adapter->stopped = 1;
+ em_dev_free_queues(dev);
+ e1000_phy_hw_reset(hw);
+ em_release_manageability(hw);
+ em_hw_control_release(hw);
+}
+
+static int
+em_get_rx_buffer_size(struct e1000_hw *hw)
+{
+ uint32_t rx_buf_size;
+
+ rx_buf_size = ((E1000_READ_REG(hw, E1000_PBA) & UINT16_MAX) << 10);
+ return rx_buf_size;
+}
+
+/*********************************************************************
+ *
+ * Initialize the hardware
+ *
+ **********************************************************************/
+static int
+em_hardware_init(struct e1000_hw *hw)
+{
+ uint32_t rx_buf_size;
+ int diag;
+
+ /* Issue a global reset */
+ e1000_reset_hw(hw);
+
+ /* Let the firmware know the OS is in control */
+ em_hw_control_acquire(hw);
+
+ /*
+ * These parameters control the automatic generation (Tx) and
+ * response (Rx) to Ethernet PAUSE frames.
+ * - High water mark should allow for at least two standard size (1518)
+ * frames to be received after sending an XOFF.
+ * - Low water mark works best when it is very near the high water mark.
+ * This allows the receiver to restart by sending XON when it has
+ * drained a bit. Here we use an arbitrary value of 1500 which will
+ * restart after one full frame is pulled from the buffer. There
+ * could be several smaller frames in the buffer and if so they will
+ * not trigger the XON until their total number reduces the buffer
+ * by 1500.
+ * - The pause time is fairly large at 1000 x 512ns = 512 usec.
+ */
+ rx_buf_size = em_get_rx_buffer_size(hw);
+
+ hw->fc.high_water = rx_buf_size - PMD_ROUNDUP(ETHER_MAX_LEN * 2, 1024);
+ hw->fc.low_water = hw->fc.high_water - 1500;
+
+ if (hw->mac.type == e1000_80003es2lan)
+ hw->fc.pause_time = UINT16_MAX;
+ else
+ hw->fc.pause_time = EM_FC_PAUSE_TIME;
+
+ hw->fc.send_xon = 1;
+
+ /* Set Flow control, use the tunable location if sane */
+ if (em_fc_setting <= e1000_fc_full)
+ hw->fc.requested_mode = em_fc_setting;
+ else
+ hw->fc.requested_mode = e1000_fc_none;
+
+ /* Workaround: no TX flow ctrl for PCH */
+ if (hw->mac.type == e1000_pchlan)
+ hw->fc.requested_mode = e1000_fc_rx_pause;
+
+ /* Override - settings for PCH2LAN, ya its magic :) */
+ if (hw->mac.type == e1000_pch2lan) {
+ hw->fc.high_water = 0x5C20;
+ hw->fc.low_water = 0x5048;
+ hw->fc.pause_time = 0x0650;
+ hw->fc.refresh_time = 0x0400;
+ } else if (hw->mac.type == e1000_pch_lpt) {
+ hw->fc.requested_mode = e1000_fc_full;
+ }
+
+ diag = e1000_init_hw(hw);
+ if (diag < 0)
+ return diag;
+ e1000_check_for_link(hw);
+ return 0;
+}
+
+/* This function is based on em_update_stats_counters() in e1000/if_em.c */
+static void
+eth_em_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *rte_stats)
+{
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct e1000_hw_stats *stats =
+ E1000_DEV_PRIVATE_TO_STATS(dev->data->dev_private);
+ int pause_frames;
+
+ if(hw->phy.media_type == e1000_media_type_copper ||
+ (E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU)) {
+ stats->symerrs += E1000_READ_REG(hw,E1000_SYMERRS);
+ stats->sec += E1000_READ_REG(hw, E1000_SEC);
+ }
+
+ stats->crcerrs += E1000_READ_REG(hw, E1000_CRCERRS);
+ stats->mpc += E1000_READ_REG(hw, E1000_MPC);
+ stats->scc += E1000_READ_REG(hw, E1000_SCC);
+ stats->ecol += E1000_READ_REG(hw, E1000_ECOL);
+
+ stats->mcc += E1000_READ_REG(hw, E1000_MCC);
+ stats->latecol += E1000_READ_REG(hw, E1000_LATECOL);
+ stats->colc += E1000_READ_REG(hw, E1000_COLC);
+ stats->dc += E1000_READ_REG(hw, E1000_DC);
+ stats->rlec += E1000_READ_REG(hw, E1000_RLEC);
+ stats->xonrxc += E1000_READ_REG(hw, E1000_XONRXC);
+ stats->xontxc += E1000_READ_REG(hw, E1000_XONTXC);
+
+ /*
+ * For watchdog management we need to know if we have been
+ * paused during the last interval, so capture that here.
+ */
+ pause_frames = E1000_READ_REG(hw, E1000_XOFFRXC);
+ stats->xoffrxc += pause_frames;
+ stats->xofftxc += E1000_READ_REG(hw, E1000_XOFFTXC);
+ stats->fcruc += E1000_READ_REG(hw, E1000_FCRUC);
+ stats->prc64 += E1000_READ_REG(hw, E1000_PRC64);
+ stats->prc127 += E1000_READ_REG(hw, E1000_PRC127);
+ stats->prc255 += E1000_READ_REG(hw, E1000_PRC255);
+ stats->prc511 += E1000_READ_REG(hw, E1000_PRC511);
+ stats->prc1023 += E1000_READ_REG(hw, E1000_PRC1023);
+ stats->prc1522 += E1000_READ_REG(hw, E1000_PRC1522);
+ stats->gprc += E1000_READ_REG(hw, E1000_GPRC);
+ stats->bprc += E1000_READ_REG(hw, E1000_BPRC);
+ stats->mprc += E1000_READ_REG(hw, E1000_MPRC);
+ stats->gptc += E1000_READ_REG(hw, E1000_GPTC);
+
+ /*
+ * For the 64-bit byte counters the low dword must be read first.
+ * Both registers clear on the read of the high dword.
+ */
+
+ stats->gorc += E1000_READ_REG(hw, E1000_GORCL);
+ stats->gorc += ((uint64_t)E1000_READ_REG(hw, E1000_GORCH) << 32);
+ stats->gotc += E1000_READ_REG(hw, E1000_GOTCL);
+ stats->gotc += ((uint64_t)E1000_READ_REG(hw, E1000_GOTCH) << 32);
+
+ stats->rnbc += E1000_READ_REG(hw, E1000_RNBC);
+ stats->ruc += E1000_READ_REG(hw, E1000_RUC);
+ stats->rfc += E1000_READ_REG(hw, E1000_RFC);
+ stats->roc += E1000_READ_REG(hw, E1000_ROC);
+ stats->rjc += E1000_READ_REG(hw, E1000_RJC);
+
+ stats->tor += E1000_READ_REG(hw, E1000_TORH);
+ stats->tot += E1000_READ_REG(hw, E1000_TOTH);
+
+ stats->tpr += E1000_READ_REG(hw, E1000_TPR);
+ stats->tpt += E1000_READ_REG(hw, E1000_TPT);
+ stats->ptc64 += E1000_READ_REG(hw, E1000_PTC64);
+ stats->ptc127 += E1000_READ_REG(hw, E1000_PTC127);
+ stats->ptc255 += E1000_READ_REG(hw, E1000_PTC255);
+ stats->ptc511 += E1000_READ_REG(hw, E1000_PTC511);
+ stats->ptc1023 += E1000_READ_REG(hw, E1000_PTC1023);
+ stats->ptc1522 += E1000_READ_REG(hw, E1000_PTC1522);
+ stats->mptc += E1000_READ_REG(hw, E1000_MPTC);
+ stats->bptc += E1000_READ_REG(hw, E1000_BPTC);
+
+ /* Interrupt Counts */
+
+ if (hw->mac.type >= e1000_82571) {
+ stats->iac += E1000_READ_REG(hw, E1000_IAC);
+ stats->icrxptc += E1000_READ_REG(hw, E1000_ICRXPTC);
+ stats->icrxatc += E1000_READ_REG(hw, E1000_ICRXATC);
+ stats->ictxptc += E1000_READ_REG(hw, E1000_ICTXPTC);
+ stats->ictxatc += E1000_READ_REG(hw, E1000_ICTXATC);
+ stats->ictxqec += E1000_READ_REG(hw, E1000_ICTXQEC);
+ stats->ictxqmtc += E1000_READ_REG(hw, E1000_ICTXQMTC);
+ stats->icrxdmtc += E1000_READ_REG(hw, E1000_ICRXDMTC);
+ stats->icrxoc += E1000_READ_REG(hw, E1000_ICRXOC);
+ }
+
+ if (hw->mac.type >= e1000_82543) {
+ stats->algnerrc += E1000_READ_REG(hw, E1000_ALGNERRC);
+ stats->rxerrc += E1000_READ_REG(hw, E1000_RXERRC);
+ stats->tncrs += E1000_READ_REG(hw, E1000_TNCRS);
+ stats->cexterr += E1000_READ_REG(hw, E1000_CEXTERR);
+ stats->tsctc += E1000_READ_REG(hw, E1000_TSCTC);
+ stats->tsctfc += E1000_READ_REG(hw, E1000_TSCTFC);
+ }
+
+ if (rte_stats == NULL)
+ return;
+
+ /* Rx Errors */
+ rte_stats->imissed = stats->mpc;
+ rte_stats->ierrors = stats->crcerrs +
+ stats->rlec + stats->ruc + stats->roc +
+ stats->rxerrc + stats->algnerrc + stats->cexterr;
+
+ /* Tx Errors */
+ rte_stats->oerrors = stats->ecol + stats->latecol;
+
+ rte_stats->ipackets = stats->gprc;
+ rte_stats->opackets = stats->gptc;
+ rte_stats->ibytes = stats->gorc;
+ rte_stats->obytes = stats->gotc;
+}
+
+static void
+eth_em_stats_reset(struct rte_eth_dev *dev)
+{
+ struct e1000_hw_stats *hw_stats =
+ E1000_DEV_PRIVATE_TO_STATS(dev->data->dev_private);
+
+ /* HW registers are cleared on read */
+ eth_em_stats_get(dev, NULL);
+
+ /* Reset software totals */
+ memset(hw_stats, 0, sizeof(*hw_stats));
+}
+
+static int
+eth_em_rx_queue_intr_enable(struct rte_eth_dev *dev, __rte_unused uint16_t queue_id)
+{
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+ em_rxq_intr_enable(hw);
+ rte_intr_enable(&dev->pci_dev->intr_handle);
+
+ return 0;
+}
+
+static int
+eth_em_rx_queue_intr_disable(struct rte_eth_dev *dev, __rte_unused uint16_t queue_id)
+{
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+ em_rxq_intr_disable(hw);
+
+ return 0;
+}
+
+static uint32_t
+em_get_max_pktlen(const struct e1000_hw *hw)
+{
+ switch (hw->mac.type) {
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_ich9lan:
+ case e1000_ich10lan:
+ case e1000_pch2lan:
+ case e1000_pch_lpt:
+ case e1000_82574:
+ case e1000_80003es2lan: /* 9K Jumbo Frame size */
+ case e1000_82583:
+ return 0x2412;
+ case e1000_pchlan:
+ return 0x1000;
+ /* Adapters that do not support jumbo frames */
+ case e1000_ich8lan:
+ return ETHER_MAX_LEN;
+ default:
+ return MAX_JUMBO_FRAME_SIZE;
+ }
+}
+
+static void
+eth_em_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
+{
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+ dev_info->min_rx_bufsize = 256; /* See BSIZE field of RCTL register. */
+ dev_info->max_rx_pktlen = em_get_max_pktlen(hw);
+ dev_info->max_mac_addrs = hw->mac.rar_entry_count;
+
+ /*
+ * Starting with 631xESB hw supports 2 TX/RX queues per port.
+ * Unfortunatelly, all these nics have just one TX context.
+ * So we have few choises for TX:
+ * - Use just one TX queue.
+ * - Allow cksum offload only for one TX queue.
+ * - Don't allow TX cksum offload at all.
+ * For now, option #1 was chosen.
+ * To use second RX queue we have to use extended RX descriptor
+ * (Multiple Receive Queues are mutually exclusive with UDP
+ * fragmentation and are not supported when a legacy receive
+ * descriptor format is used).
+ * Which means separate RX routinies - as legacy nics (82540, 82545)
+ * don't support extended RXD.
+ * To avoid it we support just one RX queue for now (no RSS).
+ */
+
+ dev_info->max_rx_queues = 1;
+ dev_info->max_tx_queues = 1;
+
+ dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
+ .nb_max = E1000_MAX_RING_DESC,
+ .nb_min = E1000_MIN_RING_DESC,
+ .nb_align = EM_RXD_ALIGN,
+ };
+
+ dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
+ .nb_max = E1000_MAX_RING_DESC,
+ .nb_min = E1000_MIN_RING_DESC,
+ .nb_align = EM_TXD_ALIGN,
+ };
+
+ dev_info->speed_capa = ETH_LINK_SPEED_10M_HD | ETH_LINK_SPEED_10M |
+ ETH_LINK_SPEED_100M_HD | ETH_LINK_SPEED_100M |
+ ETH_LINK_SPEED_1G;
+}
+
+/* return 0 means link status changed, -1 means not changed */
+static int
+eth_em_link_update(struct rte_eth_dev *dev, int wait_to_complete)
+{
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct rte_eth_link link, old;
+ int link_check, count;
+
+ link_check = 0;
+ hw->mac.get_link_status = 1;
+
+ /* possible wait-to-complete in up to 9 seconds */
+ for (count = 0; count < EM_LINK_UPDATE_CHECK_TIMEOUT; count ++) {
+ /* Read the real link status */
+ switch (hw->phy.media_type) {
+ case e1000_media_type_copper:
+ /* Do the work to read phy */
+ e1000_check_for_link(hw);
+ link_check = !hw->mac.get_link_status;
+ break;
+
+ case e1000_media_type_fiber:
+ e1000_check_for_link(hw);
+ link_check = (E1000_READ_REG(hw, E1000_STATUS) &
+ E1000_STATUS_LU);
+ break;
+
+ case e1000_media_type_internal_serdes:
+ e1000_check_for_link(hw);
+ link_check = hw->mac.serdes_has_link;
+ break;
+
+ default:
+ break;
+ }
+ if (link_check || wait_to_complete == 0)
+ break;
+ rte_delay_ms(EM_LINK_UPDATE_CHECK_INTERVAL);
+ }
+ memset(&link, 0, sizeof(link));
+ rte_em_dev_atomic_read_link_status(dev, &link);
+ old = link;
+
+ /* Now we check if a transition has happened */
+ if (link_check && (link.link_status == ETH_LINK_DOWN)) {
+ uint16_t duplex, speed;
+ hw->mac.ops.get_link_up_info(hw, &speed, &duplex);
+ link.link_duplex = (duplex == FULL_DUPLEX) ?
+ ETH_LINK_FULL_DUPLEX :
+ ETH_LINK_HALF_DUPLEX;
+ link.link_speed = speed;
+ link.link_status = ETH_LINK_UP;
+ link.link_autoneg = !(dev->data->dev_conf.link_speeds &
+ ETH_LINK_SPEED_FIXED);
+ } else if (!link_check && (link.link_status == ETH_LINK_UP)) {
+ link.link_speed = 0;
+ link.link_duplex = ETH_LINK_HALF_DUPLEX;
+ link.link_status = ETH_LINK_DOWN;
+ link.link_autoneg = ETH_LINK_SPEED_FIXED;
+ }
+ rte_em_dev_atomic_write_link_status(dev, &link);
+
+ /* not changed */
+ if (old.link_status == link.link_status)
+ return -1;
+
+ /* changed */
+ return 0;
+}
+
+/*
+ * em_hw_control_acquire sets {CTRL_EXT|FWSM}:DRV_LOAD bit.
+ * For ASF and Pass Through versions of f/w this means
+ * that the driver is loaded. For AMT version type f/w
+ * this means that the network i/f is open.
+ */
+static void
+em_hw_control_acquire(struct e1000_hw *hw)
+{
+ uint32_t ctrl_ext, swsm;
+
+ /* Let firmware know the driver has taken over */
+ if (hw->mac.type == e1000_82573) {
+ swsm = E1000_READ_REG(hw, E1000_SWSM);
+ E1000_WRITE_REG(hw, E1000_SWSM, swsm | E1000_SWSM_DRV_LOAD);
+
+ } else {
+ ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
+ E1000_WRITE_REG(hw, E1000_CTRL_EXT,
+ ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
+ }
+}
+
+/*
+ * em_hw_control_release resets {CTRL_EXTT|FWSM}:DRV_LOAD bit.
+ * For ASF and Pass Through versions of f/w this means that the
+ * driver is no longer loaded. For AMT versions of the
+ * f/w this means that the network i/f is closed.
+ */
+static void
+em_hw_control_release(struct e1000_hw *hw)
+{
+ uint32_t ctrl_ext, swsm;
+
+ /* Let firmware taken over control of h/w */
+ if (hw->mac.type == e1000_82573) {
+ swsm = E1000_READ_REG(hw, E1000_SWSM);
+ E1000_WRITE_REG(hw, E1000_SWSM, swsm & ~E1000_SWSM_DRV_LOAD);
+ } else {
+ ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
+ E1000_WRITE_REG(hw, E1000_CTRL_EXT,
+ ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
+ }
+}
+
+/*
+ * Bit of a misnomer, what this really means is
+ * to enable OS management of the system... aka
+ * to disable special hardware management features.
+ */
+static void
+em_init_manageability(struct e1000_hw *hw)
+{
+ if (e1000_enable_mng_pass_thru(hw)) {
+ uint32_t manc2h = E1000_READ_REG(hw, E1000_MANC2H);
+ uint32_t manc = E1000_READ_REG(hw, E1000_MANC);
+
+ /* disable hardware interception of ARP */
+ manc &= ~(E1000_MANC_ARP_EN);
+
+ /* enable receiving management packets to the host */
+ manc |= E1000_MANC_EN_MNG2HOST;
+ manc2h |= 1 << 5; /* Mng Port 623 */
+ manc2h |= 1 << 6; /* Mng Port 664 */
+ E1000_WRITE_REG(hw, E1000_MANC2H, manc2h);
+ E1000_WRITE_REG(hw, E1000_MANC, manc);
+ }
+}
+
+/*
+ * Give control back to hardware management
+ * controller if there is one.
+ */
+static void
+em_release_manageability(struct e1000_hw *hw)
+{
+ uint32_t manc;
+
+ if (e1000_enable_mng_pass_thru(hw)) {
+ manc = E1000_READ_REG(hw, E1000_MANC);
+
+ /* re-enable hardware interception of ARP */
+ manc |= E1000_MANC_ARP_EN;
+ manc &= ~E1000_MANC_EN_MNG2HOST;
+
+ E1000_WRITE_REG(hw, E1000_MANC, manc);
+ }
+}
+
+static void
+eth_em_promiscuous_enable(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t rctl;
+
+ rctl = E1000_READ_REG(hw, E1000_RCTL);
+ rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
+ E1000_WRITE_REG(hw, E1000_RCTL, rctl);
+}
+
+static void
+eth_em_promiscuous_disable(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t rctl;
+
+ rctl = E1000_READ_REG(hw, E1000_RCTL);
+ rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_SBP);
+ if (dev->data->all_multicast == 1)
+ rctl |= E1000_RCTL_MPE;
+ else
+ rctl &= (~E1000_RCTL_MPE);
+ E1000_WRITE_REG(hw, E1000_RCTL, rctl);
+}
+
+static void
+eth_em_allmulticast_enable(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t rctl;
+
+ rctl = E1000_READ_REG(hw, E1000_RCTL);
+ rctl |= E1000_RCTL_MPE;
+ E1000_WRITE_REG(hw, E1000_RCTL, rctl);
+}
+
+static void
+eth_em_allmulticast_disable(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t rctl;
+
+ if (dev->data->promiscuous == 1)
+ return; /* must remain in all_multicast mode */
+ rctl = E1000_READ_REG(hw, E1000_RCTL);
+ rctl &= (~E1000_RCTL_MPE);
+ E1000_WRITE_REG(hw, E1000_RCTL, rctl);
+}
+
+static int
+eth_em_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
+{
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct e1000_vfta * shadow_vfta =
+ E1000_DEV_PRIVATE_TO_VFTA(dev->data->dev_private);
+ uint32_t vfta;
+ uint32_t vid_idx;
+ uint32_t vid_bit;
+
+ vid_idx = (uint32_t) ((vlan_id >> E1000_VFTA_ENTRY_SHIFT) &
+ E1000_VFTA_ENTRY_MASK);
+ vid_bit = (uint32_t) (1 << (vlan_id & E1000_VFTA_ENTRY_BIT_SHIFT_MASK));
+ vfta = E1000_READ_REG_ARRAY(hw, E1000_VFTA, vid_idx);
+ if (on)
+ vfta |= vid_bit;
+ else
+ vfta &= ~vid_bit;
+ E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, vid_idx, vfta);
+
+ /* update local VFTA copy */
+ shadow_vfta->vfta[vid_idx] = vfta;
+
+ return 0;
+}
+
+static void
+em_vlan_hw_filter_disable(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t reg;
+
+ /* Filter Table Disable */
+ reg = E1000_READ_REG(hw, E1000_RCTL);
+ reg &= ~E1000_RCTL_CFIEN;
+ reg &= ~E1000_RCTL_VFE;
+ E1000_WRITE_REG(hw, E1000_RCTL, reg);
+}
+
+static void
+em_vlan_hw_filter_enable(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct e1000_vfta * shadow_vfta =
+ E1000_DEV_PRIVATE_TO_VFTA(dev->data->dev_private);
+ uint32_t reg;
+ int i;
+
+ /* Filter Table Enable, CFI not used for packet acceptance */
+ reg = E1000_READ_REG(hw, E1000_RCTL);
+ reg &= ~E1000_RCTL_CFIEN;
+ reg |= E1000_RCTL_VFE;
+ E1000_WRITE_REG(hw, E1000_RCTL, reg);
+
+ /* restore vfta from local copy */
+ for (i = 0; i < IGB_VFTA_SIZE; i++)
+ E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, i, shadow_vfta->vfta[i]);
+}
+
+static void
+em_vlan_hw_strip_disable(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t reg;
+
+ /* VLAN Mode Disable */
+ reg = E1000_READ_REG(hw, E1000_CTRL);
+ reg &= ~E1000_CTRL_VME;
+ E1000_WRITE_REG(hw, E1000_CTRL, reg);
+
+}
+
+static void
+em_vlan_hw_strip_enable(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t reg;
+
+ /* VLAN Mode Enable */
+ reg = E1000_READ_REG(hw, E1000_CTRL);
+ reg |= E1000_CTRL_VME;
+ E1000_WRITE_REG(hw, E1000_CTRL, reg);
+}
+
+static void
+eth_em_vlan_offload_set(struct rte_eth_dev *dev, int mask)
+{
+ if(mask & ETH_VLAN_STRIP_MASK){
+ if (dev->data->dev_conf.rxmode.hw_vlan_strip)
+ em_vlan_hw_strip_enable(dev);
+ else
+ em_vlan_hw_strip_disable(dev);
+ }
+
+ if(mask & ETH_VLAN_FILTER_MASK){
+ if (dev->data->dev_conf.rxmode.hw_vlan_filter)
+ em_vlan_hw_filter_enable(dev);
+ else
+ em_vlan_hw_filter_disable(dev);
+ }
+}
+
+/*
+ * It enables the interrupt mask and then enable the interrupt.
+ *
+ * @param dev
+ * Pointer to struct rte_eth_dev.
+ *
+ * @return
+ * - On success, zero.
+ * - On failure, a negative value.
+ */
+static int
+eth_em_interrupt_setup(struct rte_eth_dev *dev)
+{
+ uint32_t regval;
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+ /* clear interrupt */
+ E1000_READ_REG(hw, E1000_ICR);
+ regval = E1000_READ_REG(hw, E1000_IMS);
+ E1000_WRITE_REG(hw, E1000_IMS, regval | E1000_ICR_LSC);
+ return 0;
+}
+
+/*
+ * It clears the interrupt causes and enables the interrupt.
+ * It will be called once only during nic initialized.
+ *
+ * @param dev
+ * Pointer to struct rte_eth_dev.
+ *
+ * @return
+ * - On success, zero.
+ * - On failure, a negative value.
+ */
+static int
+eth_em_rxq_interrupt_setup(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+ E1000_READ_REG(hw, E1000_ICR);
+ em_rxq_intr_enable(hw);
+ return 0;
+}
+
+/*
+ * It enable receive packet interrupt.
+ * @param hw
+ * Pointer to struct e1000_hw
+ *
+ * @return
+ */
+static void
+em_rxq_intr_enable(struct e1000_hw *hw)
+{
+ E1000_WRITE_REG(hw, E1000_IMS, E1000_IMS_RXT0);
+ E1000_WRITE_FLUSH(hw);
+}
+
+/*
+ * It disabled lsc interrupt.
+ * @param hw
+ * Pointer to struct e1000_hw
+ *
+ * @return
+ */
+static void
+em_lsc_intr_disable(struct e1000_hw *hw)
+{
+ E1000_WRITE_REG(hw, E1000_IMC, E1000_IMS_LSC);
+ E1000_WRITE_FLUSH(hw);
+}
+
+/*
+ * It disabled receive packet interrupt.
+ * @param hw
+ * Pointer to struct e1000_hw
+ *
+ * @return
+ */
+static void
+em_rxq_intr_disable(struct e1000_hw *hw)
+{
+ E1000_READ_REG(hw, E1000_ICR);
+ E1000_WRITE_REG(hw, E1000_IMC, E1000_IMS_RXT0);
+ E1000_WRITE_FLUSH(hw);
+}
+
+/*
+ * It reads ICR and gets interrupt causes, check it and set a bit flag
+ * to update link status.
+ *
+ * @param dev
+ * Pointer to struct rte_eth_dev.
+ *
+ * @return
+ * - On success, zero.
+ * - On failure, a negative value.
+ */
+static int
+eth_em_interrupt_get_status(struct rte_eth_dev *dev)
+{
+ uint32_t icr;
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct e1000_interrupt *intr =
+ E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
+
+ /* read-on-clear nic registers here */
+ icr = E1000_READ_REG(hw, E1000_ICR);
+ if (icr & E1000_ICR_LSC) {
+ intr->flags |= E1000_FLAG_NEED_LINK_UPDATE;
+ }
+
+ return 0;
+}
+
+/*
+ * It executes link_update after knowing an interrupt is prsent.
+ *
+ * @param dev
+ * Pointer to struct rte_eth_dev.
+ *
+ * @return
+ * - On success, zero.
+ * - On failure, a negative value.
+ */
+static int
+eth_em_interrupt_action(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct e1000_interrupt *intr =
+ E1000_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
+ uint32_t tctl, rctl;
+ struct rte_eth_link link;
+ int ret;
+
+ if (!(intr->flags & E1000_FLAG_NEED_LINK_UPDATE))
+ return -1;
+
+ intr->flags &= ~E1000_FLAG_NEED_LINK_UPDATE;
+ rte_intr_enable(&(dev->pci_dev->intr_handle));
+
+ /* set get_link_status to check register later */
+ hw->mac.get_link_status = 1;
+ ret = eth_em_link_update(dev, 0);
+
+ /* check if link has changed */
+ if (ret < 0)
+ return 0;
+
+ memset(&link, 0, sizeof(link));
+ rte_em_dev_atomic_read_link_status(dev, &link);
+ if (link.link_status) {
+ PMD_INIT_LOG(INFO, " Port %d: Link Up - speed %u Mbps - %s",
+ dev->data->port_id, (unsigned)link.link_speed,
+ link.link_duplex == ETH_LINK_FULL_DUPLEX ?
+ "full-duplex" : "half-duplex");
+ } else {
+ PMD_INIT_LOG(INFO, " Port %d: Link Down", dev->data->port_id);
+ }
+ PMD_INIT_LOG(DEBUG, "PCI Address: %04d:%02d:%02d:%d",
+ dev->pci_dev->addr.domain, dev->pci_dev->addr.bus,
+ dev->pci_dev->addr.devid, dev->pci_dev->addr.function);
+
+ tctl = E1000_READ_REG(hw, E1000_TCTL);
+ rctl = E1000_READ_REG(hw, E1000_RCTL);
+ if (link.link_status) {
+ /* enable Tx/Rx */
+ tctl |= E1000_TCTL_EN;
+ rctl |= E1000_RCTL_EN;
+ } else {
+ /* disable Tx/Rx */
+ tctl &= ~E1000_TCTL_EN;
+ rctl &= ~E1000_RCTL_EN;
+ }
+ E1000_WRITE_REG(hw, E1000_TCTL, tctl);
+ E1000_WRITE_REG(hw, E1000_RCTL, rctl);
+ E1000_WRITE_FLUSH(hw);
+
+ return 0;
+}
+
+/**
+ * Interrupt handler which shall be registered at first.
+ *
+ * @param handle
+ * Pointer to interrupt handle.
+ * @param param
+ * The address of parameter (struct rte_eth_dev *) regsitered before.
+ *
+ * @return
+ * void
+ */
+static void
+eth_em_interrupt_handler(__rte_unused struct rte_intr_handle *handle,
+ void *param)
+{
+ struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
+
+ eth_em_interrupt_get_status(dev);
+ eth_em_interrupt_action(dev);
+ _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC);
+}
+
+static int
+eth_em_led_on(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw;
+
+ hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ return e1000_led_on(hw) == E1000_SUCCESS ? 0 : -ENOTSUP;
+}
+
+static int
+eth_em_led_off(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw;
+
+ hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ return e1000_led_off(hw) == E1000_SUCCESS ? 0 : -ENOTSUP;
+}
+
+static int
+eth_em_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
+{
+ struct e1000_hw *hw;
+ uint32_t ctrl;
+ int tx_pause;
+ int rx_pause;
+
+ hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ fc_conf->pause_time = hw->fc.pause_time;
+ fc_conf->high_water = hw->fc.high_water;
+ fc_conf->low_water = hw->fc.low_water;
+ fc_conf->send_xon = hw->fc.send_xon;
+ fc_conf->autoneg = hw->mac.autoneg;
+
+ /*
+ * Return rx_pause and tx_pause status according to actual setting of
+ * the TFCE and RFCE bits in the CTRL register.
+ */
+ ctrl = E1000_READ_REG(hw, E1000_CTRL);
+ if (ctrl & E1000_CTRL_TFCE)
+ tx_pause = 1;
+ else
+ tx_pause = 0;
+
+ if (ctrl & E1000_CTRL_RFCE)
+ rx_pause = 1;
+ else
+ rx_pause = 0;
+
+ if (rx_pause && tx_pause)
+ fc_conf->mode = RTE_FC_FULL;
+ else if (rx_pause)
+ fc_conf->mode = RTE_FC_RX_PAUSE;
+ else if (tx_pause)
+ fc_conf->mode = RTE_FC_TX_PAUSE;
+ else
+ fc_conf->mode = RTE_FC_NONE;
+
+ return 0;
+}
+
+static int
+eth_em_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
+{
+ struct e1000_hw *hw;
+ int err;
+ enum e1000_fc_mode rte_fcmode_2_e1000_fcmode[] = {
+ e1000_fc_none,
+ e1000_fc_rx_pause,
+ e1000_fc_tx_pause,
+ e1000_fc_full
+ };
+ uint32_t rx_buf_size;
+ uint32_t max_high_water;
+ uint32_t rctl;
+
+ hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ if (fc_conf->autoneg != hw->mac.autoneg)
+ return -ENOTSUP;
+ rx_buf_size = em_get_rx_buffer_size(hw);
+ PMD_INIT_LOG(DEBUG, "Rx packet buffer size = 0x%x", rx_buf_size);
+
+ /* At least reserve one Ethernet frame for watermark */
+ max_high_water = rx_buf_size - ETHER_MAX_LEN;
+ if ((fc_conf->high_water > max_high_water) ||
+ (fc_conf->high_water < fc_conf->low_water)) {
+ PMD_INIT_LOG(ERR, "e1000 incorrect high/low water value");
+ PMD_INIT_LOG(ERR, "high water must <= 0x%x", max_high_water);
+ return -EINVAL;
+ }
+
+ hw->fc.requested_mode = rte_fcmode_2_e1000_fcmode[fc_conf->mode];
+ hw->fc.pause_time = fc_conf->pause_time;
+ hw->fc.high_water = fc_conf->high_water;
+ hw->fc.low_water = fc_conf->low_water;
+ hw->fc.send_xon = fc_conf->send_xon;
+
+ err = e1000_setup_link_generic(hw);
+ if (err == E1000_SUCCESS) {
+
+ /* check if we want to forward MAC frames - driver doesn't have native
+ * capability to do that, so we'll write the registers ourselves */
+
+ rctl = E1000_READ_REG(hw, E1000_RCTL);
+
+ /* set or clear MFLCN.PMCF bit depending on configuration */
+ if (fc_conf->mac_ctrl_frame_fwd != 0)
+ rctl |= E1000_RCTL_PMCF;
+ else
+ rctl &= ~E1000_RCTL_PMCF;
+
+ E1000_WRITE_REG(hw, E1000_RCTL, rctl);
+ E1000_WRITE_FLUSH(hw);
+
+ return 0;
+ }
+
+ PMD_INIT_LOG(ERR, "e1000_setup_link_generic = 0x%x", err);
+ return -EIO;
+}
+
+static void
+eth_em_rar_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
+ uint32_t index, __rte_unused uint32_t pool)
+{
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+ e1000_rar_set(hw, mac_addr->addr_bytes, index);
+}
+
+static void
+eth_em_rar_clear(struct rte_eth_dev *dev, uint32_t index)
+{
+ uint8_t addr[ETHER_ADDR_LEN];
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+ memset(addr, 0, sizeof(addr));
+
+ e1000_rar_set(hw, addr, index);
+}
+
+static int
+eth_em_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+ struct rte_eth_dev_info dev_info;
+ struct e1000_hw *hw;
+ uint32_t frame_size;
+ uint32_t rctl;
+
+ eth_em_infos_get(dev, &dev_info);
+ frame_size = mtu + ETHER_HDR_LEN + ETHER_CRC_LEN + VLAN_TAG_SIZE;
+
+ /* check that mtu is within the allowed range */
+ if ((mtu < ETHER_MIN_MTU) || (frame_size > dev_info.max_rx_pktlen))
+ return -EINVAL;
+
+ /* refuse mtu that requires the support of scattered packets when this
+ * feature has not been enabled before. */
+ if (!dev->data->scattered_rx &&
+ frame_size > dev->data->min_rx_buf_size - RTE_PKTMBUF_HEADROOM)
+ return -EINVAL;
+
+ hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ rctl = E1000_READ_REG(hw, E1000_RCTL);
+
+ /* switch to jumbo mode if needed */
+ if (frame_size > ETHER_MAX_LEN) {
+ dev->data->dev_conf.rxmode.jumbo_frame = 1;
+ rctl |= E1000_RCTL_LPE;
+ } else {
+ dev->data->dev_conf.rxmode.jumbo_frame = 0;
+ rctl &= ~E1000_RCTL_LPE;
+ }
+ E1000_WRITE_REG(hw, E1000_RCTL, rctl);
+
+ /* update max frame size */
+ dev->data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
+ return 0;
+}
+
+static int
+eth_em_set_mc_addr_list(struct rte_eth_dev *dev,
+ struct ether_addr *mc_addr_set,
+ uint32_t nb_mc_addr)
+{
+ struct e1000_hw *hw;
+
+ hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ e1000_update_mc_addr_list(hw, (u8 *)mc_addr_set, nb_mc_addr);
+ return 0;
+}
+
+struct rte_driver em_pmd_drv = {
+ .type = PMD_PDEV,
+ .init = rte_em_pmd_init,
+};
+
+PMD_REGISTER_DRIVER(em_pmd_drv);
Code Review / deb_dpdk.git / blobdiff