421 lines
14 KiB
C
421 lines
14 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright(c) 2013 - 2018 Intel Corporation. */
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#ifndef _IAVF_H_
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#define _IAVF_H_
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/aer.h>
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#include <linux/netdevice.h>
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#include <linux/vmalloc.h>
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#include <linux/interrupt.h>
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#include <linux/ethtool.h>
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#include <linux/if_vlan.h>
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#include <linux/ip.h>
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#include <linux/tcp.h>
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#include <linux/sctp.h>
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#include <linux/ipv6.h>
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#include <linux/kernel.h>
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#include <linux/bitops.h>
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#include <linux/timer.h>
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#include <linux/workqueue.h>
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#include <linux/wait.h>
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#include <linux/delay.h>
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#include <linux/gfp.h>
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#include <linux/skbuff.h>
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#include <linux/dma-mapping.h>
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#include <linux/etherdevice.h>
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#include <linux/socket.h>
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#include <linux/jiffies.h>
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#include <net/ip6_checksum.h>
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#include <net/pkt_cls.h>
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#include <net/udp.h>
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#include <net/tc_act/tc_gact.h>
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#include <net/tc_act/tc_mirred.h>
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#include "iavf_type.h"
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#include <linux/avf/virtchnl.h>
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#include "iavf_txrx.h"
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#define DEFAULT_DEBUG_LEVEL_SHIFT 3
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#define PFX "iavf: "
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/* VSI state flags shared with common code */
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enum iavf_vsi_state_t {
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__IAVF_VSI_DOWN,
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/* This must be last as it determines the size of the BITMAP */
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__IAVF_VSI_STATE_SIZE__,
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};
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/* dummy struct to make common code less painful */
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struct iavf_vsi {
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struct iavf_adapter *back;
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struct net_device *netdev;
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unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
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u16 seid;
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u16 id;
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DECLARE_BITMAP(state, __IAVF_VSI_STATE_SIZE__);
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int base_vector;
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u16 work_limit;
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u16 qs_handle;
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void *priv; /* client driver data reference. */
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};
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/* How many Rx Buffers do we bundle into one write to the hardware ? */
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#define IAVF_RX_BUFFER_WRITE 16 /* Must be power of 2 */
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#define IAVF_DEFAULT_TXD 512
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#define IAVF_DEFAULT_RXD 512
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#define IAVF_MAX_TXD 4096
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#define IAVF_MIN_TXD 64
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#define IAVF_MAX_RXD 4096
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#define IAVF_MIN_RXD 64
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#define IAVF_REQ_DESCRIPTOR_MULTIPLE 32
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#define IAVF_MAX_AQ_BUF_SIZE 4096
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#define IAVF_AQ_LEN 32
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#define IAVF_AQ_MAX_ERR 20 /* times to try before resetting AQ */
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#define MAXIMUM_ETHERNET_VLAN_SIZE (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)
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#define IAVF_RX_DESC(R, i) (&(((union iavf_32byte_rx_desc *)((R)->desc))[i]))
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#define IAVF_TX_DESC(R, i) (&(((struct iavf_tx_desc *)((R)->desc))[i]))
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#define IAVF_TX_CTXTDESC(R, i) \
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(&(((struct iavf_tx_context_desc *)((R)->desc))[i]))
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#define IAVF_MAX_REQ_QUEUES 4
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#define IAVF_HKEY_ARRAY_SIZE ((IAVF_VFQF_HKEY_MAX_INDEX + 1) * 4)
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#define IAVF_HLUT_ARRAY_SIZE ((IAVF_VFQF_HLUT_MAX_INDEX + 1) * 4)
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#define IAVF_MBPS_DIVISOR 125000 /* divisor to convert to Mbps */
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/* MAX_MSIX_Q_VECTORS of these are allocated,
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* but we only use one per queue-specific vector.
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*/
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struct iavf_q_vector {
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struct iavf_adapter *adapter;
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struct iavf_vsi *vsi;
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struct napi_struct napi;
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struct iavf_ring_container rx;
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struct iavf_ring_container tx;
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u32 ring_mask;
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u8 itr_countdown; /* when 0 should adjust adaptive ITR */
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u8 num_ringpairs; /* total number of ring pairs in vector */
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u16 v_idx; /* index in the vsi->q_vector array. */
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u16 reg_idx; /* register index of the interrupt */
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char name[IFNAMSIZ + 15];
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bool arm_wb_state;
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cpumask_t affinity_mask;
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struct irq_affinity_notify affinity_notify;
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};
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/* Helper macros to switch between ints/sec and what the register uses.
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* And yes, it's the same math going both ways. The lowest value
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* supported by all of the iavf hardware is 8.
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*/
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#define EITR_INTS_PER_SEC_TO_REG(_eitr) \
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((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8)
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#define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG
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#define IAVF_DESC_UNUSED(R) \
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((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
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(R)->next_to_clean - (R)->next_to_use - 1)
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#define OTHER_VECTOR 1
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#define NONQ_VECS (OTHER_VECTOR)
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#define MIN_MSIX_Q_VECTORS 1
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#define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NONQ_VECS)
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#define IAVF_QUEUE_END_OF_LIST 0x7FF
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#define IAVF_FREE_VECTOR 0x7FFF
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struct iavf_mac_filter {
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struct list_head list;
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u8 macaddr[ETH_ALEN];
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bool remove; /* filter needs to be removed */
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bool add; /* filter needs to be added */
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};
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struct iavf_vlan_filter {
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struct list_head list;
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u16 vlan;
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bool remove; /* filter needs to be removed */
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bool add; /* filter needs to be added */
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};
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#define IAVF_MAX_TRAFFIC_CLASS 4
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/* State of traffic class creation */
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enum iavf_tc_state_t {
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__IAVF_TC_INVALID, /* no traffic class, default state */
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__IAVF_TC_RUNNING, /* traffic classes have been created */
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};
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/* channel info */
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struct iavf_channel_config {
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struct virtchnl_channel_info ch_info[IAVF_MAX_TRAFFIC_CLASS];
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enum iavf_tc_state_t state;
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u8 total_qps;
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};
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/* State of cloud filter */
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enum iavf_cloud_filter_state_t {
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__IAVF_CF_INVALID, /* cloud filter not added */
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__IAVF_CF_ADD_PENDING, /* cloud filter pending add by the PF */
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__IAVF_CF_DEL_PENDING, /* cloud filter pending del by the PF */
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__IAVF_CF_ACTIVE, /* cloud filter is active */
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};
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/* Driver state. The order of these is important! */
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enum iavf_state_t {
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__IAVF_STARTUP, /* driver loaded, probe complete */
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__IAVF_REMOVE, /* driver is being unloaded */
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__IAVF_INIT_VERSION_CHECK, /* aq msg sent, awaiting reply */
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__IAVF_INIT_GET_RESOURCES, /* aq msg sent, awaiting reply */
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__IAVF_INIT_SW, /* got resources, setting up structs */
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__IAVF_RESETTING, /* in reset */
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__IAVF_COMM_FAILED, /* communication with PF failed */
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/* Below here, watchdog is running */
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__IAVF_DOWN, /* ready, can be opened */
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__IAVF_DOWN_PENDING, /* descending, waiting for watchdog */
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__IAVF_TESTING, /* in ethtool self-test */
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__IAVF_RUNNING, /* opened, working */
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};
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enum iavf_critical_section_t {
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__IAVF_IN_CRITICAL_TASK, /* cannot be interrupted */
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__IAVF_IN_CLIENT_TASK,
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__IAVF_IN_REMOVE_TASK, /* device being removed */
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};
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#define IAVF_CLOUD_FIELD_OMAC 0x01
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#define IAVF_CLOUD_FIELD_IMAC 0x02
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#define IAVF_CLOUD_FIELD_IVLAN 0x04
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#define IAVF_CLOUD_FIELD_TEN_ID 0x08
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#define IAVF_CLOUD_FIELD_IIP 0x10
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#define IAVF_CF_FLAGS_OMAC IAVF_CLOUD_FIELD_OMAC
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#define IAVF_CF_FLAGS_IMAC IAVF_CLOUD_FIELD_IMAC
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#define IAVF_CF_FLAGS_IMAC_IVLAN (IAVF_CLOUD_FIELD_IMAC |\
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IAVF_CLOUD_FIELD_IVLAN)
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#define IAVF_CF_FLAGS_IMAC_TEN_ID (IAVF_CLOUD_FIELD_IMAC |\
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IAVF_CLOUD_FIELD_TEN_ID)
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#define IAVF_CF_FLAGS_OMAC_TEN_ID_IMAC (IAVF_CLOUD_FIELD_OMAC |\
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IAVF_CLOUD_FIELD_IMAC |\
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IAVF_CLOUD_FIELD_TEN_ID)
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#define IAVF_CF_FLAGS_IMAC_IVLAN_TEN_ID (IAVF_CLOUD_FIELD_IMAC |\
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IAVF_CLOUD_FIELD_IVLAN |\
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IAVF_CLOUD_FIELD_TEN_ID)
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#define IAVF_CF_FLAGS_IIP IAVF_CLOUD_FIELD_IIP
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/* bookkeeping of cloud filters */
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struct iavf_cloud_filter {
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enum iavf_cloud_filter_state_t state;
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struct list_head list;
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struct virtchnl_filter f;
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unsigned long cookie;
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bool del; /* filter needs to be deleted */
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bool add; /* filter needs to be added */
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};
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/* board specific private data structure */
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struct iavf_adapter {
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struct work_struct reset_task;
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struct work_struct adminq_task;
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struct delayed_work client_task;
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struct delayed_work init_task;
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wait_queue_head_t down_waitqueue;
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struct iavf_q_vector *q_vectors;
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struct list_head vlan_filter_list;
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struct list_head mac_filter_list;
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/* Lock to protect accesses to MAC and VLAN lists */
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spinlock_t mac_vlan_list_lock;
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char misc_vector_name[IFNAMSIZ + 9];
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int num_active_queues;
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int num_req_queues;
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/* TX */
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struct iavf_ring *tx_rings;
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u32 tx_timeout_count;
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u32 tx_desc_count;
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/* RX */
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struct iavf_ring *rx_rings;
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u64 hw_csum_rx_error;
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u32 rx_desc_count;
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int num_msix_vectors;
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int num_iwarp_msix;
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int iwarp_base_vector;
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u32 client_pending;
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struct iavf_client_instance *cinst;
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struct msix_entry *msix_entries;
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u32 flags;
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#define IAVF_FLAG_RX_CSUM_ENABLED BIT(0)
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#define IAVF_FLAG_PF_COMMS_FAILED BIT(3)
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#define IAVF_FLAG_RESET_PENDING BIT(4)
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#define IAVF_FLAG_RESET_NEEDED BIT(5)
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#define IAVF_FLAG_WB_ON_ITR_CAPABLE BIT(6)
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#define IAVF_FLAG_SERVICE_CLIENT_REQUESTED BIT(9)
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#define IAVF_FLAG_CLIENT_NEEDS_OPEN BIT(10)
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#define IAVF_FLAG_CLIENT_NEEDS_CLOSE BIT(11)
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#define IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS BIT(12)
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#define IAVF_FLAG_PROMISC_ON BIT(13)
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#define IAVF_FLAG_ALLMULTI_ON BIT(14)
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#define IAVF_FLAG_LEGACY_RX BIT(15)
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#define IAVF_FLAG_REINIT_ITR_NEEDED BIT(16)
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#define IAVF_FLAG_QUEUES_DISABLED BIT(17)
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/* duplicates for common code */
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#define IAVF_FLAG_DCB_ENABLED 0
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/* flags for admin queue service task */
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u32 aq_required;
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#define IAVF_FLAG_AQ_ENABLE_QUEUES BIT(0)
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#define IAVF_FLAG_AQ_DISABLE_QUEUES BIT(1)
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#define IAVF_FLAG_AQ_ADD_MAC_FILTER BIT(2)
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#define IAVF_FLAG_AQ_ADD_VLAN_FILTER BIT(3)
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#define IAVF_FLAG_AQ_DEL_MAC_FILTER BIT(4)
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#define IAVF_FLAG_AQ_DEL_VLAN_FILTER BIT(5)
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#define IAVF_FLAG_AQ_CONFIGURE_QUEUES BIT(6)
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#define IAVF_FLAG_AQ_MAP_VECTORS BIT(7)
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#define IAVF_FLAG_AQ_HANDLE_RESET BIT(8)
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#define IAVF_FLAG_AQ_CONFIGURE_RSS BIT(9) /* direct AQ config */
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#define IAVF_FLAG_AQ_GET_CONFIG BIT(10)
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/* Newer style, RSS done by the PF so we can ignore hardware vagaries. */
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#define IAVF_FLAG_AQ_GET_HENA BIT(11)
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#define IAVF_FLAG_AQ_SET_HENA BIT(12)
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#define IAVF_FLAG_AQ_SET_RSS_KEY BIT(13)
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#define IAVF_FLAG_AQ_SET_RSS_LUT BIT(14)
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#define IAVF_FLAG_AQ_REQUEST_PROMISC BIT(15)
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#define IAVF_FLAG_AQ_RELEASE_PROMISC BIT(16)
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#define IAVF_FLAG_AQ_REQUEST_ALLMULTI BIT(17)
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#define IAVF_FLAG_AQ_RELEASE_ALLMULTI BIT(18)
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#define IAVF_FLAG_AQ_ENABLE_VLAN_STRIPPING BIT(19)
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#define IAVF_FLAG_AQ_DISABLE_VLAN_STRIPPING BIT(20)
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#define IAVF_FLAG_AQ_ENABLE_CHANNELS BIT(21)
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#define IAVF_FLAG_AQ_DISABLE_CHANNELS BIT(22)
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#define IAVF_FLAG_AQ_ADD_CLOUD_FILTER BIT(23)
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#define IAVF_FLAG_AQ_DEL_CLOUD_FILTER BIT(24)
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/* OS defined structs */
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struct net_device *netdev;
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struct pci_dev *pdev;
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struct iavf_hw hw; /* defined in iavf_type.h */
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enum iavf_state_t state;
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unsigned long crit_section;
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struct delayed_work watchdog_task;
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bool netdev_registered;
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bool link_up;
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enum virtchnl_link_speed link_speed;
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enum virtchnl_ops current_op;
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#define CLIENT_ALLOWED(_a) ((_a)->vf_res ? \
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(_a)->vf_res->vf_cap_flags & \
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VIRTCHNL_VF_OFFLOAD_IWARP : \
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0)
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#define CLIENT_ENABLED(_a) ((_a)->cinst)
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/* RSS by the PF should be preferred over RSS via other methods. */
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#define RSS_PF(_a) ((_a)->vf_res->vf_cap_flags & \
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VIRTCHNL_VF_OFFLOAD_RSS_PF)
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#define RSS_AQ(_a) ((_a)->vf_res->vf_cap_flags & \
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|
|
VIRTCHNL_VF_OFFLOAD_RSS_AQ)
|
||
|
|
#define RSS_REG(_a) (!((_a)->vf_res->vf_cap_flags & \
|
||
|
|
(VIRTCHNL_VF_OFFLOAD_RSS_AQ | \
|
||
|
|
VIRTCHNL_VF_OFFLOAD_RSS_PF)))
|
||
|
|
#define VLAN_ALLOWED(_a) ((_a)->vf_res->vf_cap_flags & \
|
||
|
|
VIRTCHNL_VF_OFFLOAD_VLAN)
|
||
|
|
struct virtchnl_vf_resource *vf_res; /* incl. all VSIs */
|
||
|
|
struct virtchnl_vsi_resource *vsi_res; /* our LAN VSI */
|
||
|
|
struct virtchnl_version_info pf_version;
|
||
|
|
#define PF_IS_V11(_a) (((_a)->pf_version.major == 1) && \
|
||
|
|
((_a)->pf_version.minor == 1))
|
||
|
|
u16 msg_enable;
|
||
|
|
struct iavf_eth_stats current_stats;
|
||
|
|
struct iavf_vsi vsi;
|
||
|
|
u32 aq_wait_count;
|
||
|
|
/* RSS stuff */
|
||
|
|
u64 hena;
|
||
|
|
u16 rss_key_size;
|
||
|
|
u16 rss_lut_size;
|
||
|
|
u8 *rss_key;
|
||
|
|
u8 *rss_lut;
|
||
|
|
/* ADQ related members */
|
||
|
|
struct iavf_channel_config ch_config;
|
||
|
|
u8 num_tc;
|
||
|
|
struct list_head cloud_filter_list;
|
||
|
|
/* lock to protect access to the cloud filter list */
|
||
|
|
spinlock_t cloud_filter_list_lock;
|
||
|
|
u16 num_cloud_filters;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/* Ethtool Private Flags */
|
||
|
|
|
||
|
|
/* lan device, used by client interface */
|
||
|
|
struct iavf_device {
|
||
|
|
struct list_head list;
|
||
|
|
struct iavf_adapter *vf;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* needed by iavf_ethtool.c */
|
||
|
|
extern char iavf_driver_name[];
|
||
|
|
extern const char iavf_driver_version[];
|
||
|
|
extern struct workqueue_struct *iavf_wq;
|
||
|
|
|
||
|
|
int iavf_up(struct iavf_adapter *adapter);
|
||
|
|
void iavf_down(struct iavf_adapter *adapter);
|
||
|
|
int iavf_process_config(struct iavf_adapter *adapter);
|
||
|
|
void iavf_schedule_reset(struct iavf_adapter *adapter);
|
||
|
|
void iavf_reset(struct iavf_adapter *adapter);
|
||
|
|
void iavf_set_ethtool_ops(struct net_device *netdev);
|
||
|
|
void iavf_update_stats(struct iavf_adapter *adapter);
|
||
|
|
void iavf_reset_interrupt_capability(struct iavf_adapter *adapter);
|
||
|
|
int iavf_init_interrupt_scheme(struct iavf_adapter *adapter);
|
||
|
|
void iavf_irq_enable_queues(struct iavf_adapter *adapter, u32 mask);
|
||
|
|
void iavf_free_all_tx_resources(struct iavf_adapter *adapter);
|
||
|
|
void iavf_free_all_rx_resources(struct iavf_adapter *adapter);
|
||
|
|
|
||
|
|
void iavf_napi_add_all(struct iavf_adapter *adapter);
|
||
|
|
void iavf_napi_del_all(struct iavf_adapter *adapter);
|
||
|
|
|
||
|
|
int iavf_send_api_ver(struct iavf_adapter *adapter);
|
||
|
|
int iavf_verify_api_ver(struct iavf_adapter *adapter);
|
||
|
|
int iavf_send_vf_config_msg(struct iavf_adapter *adapter);
|
||
|
|
int iavf_get_vf_config(struct iavf_adapter *adapter);
|
||
|
|
void iavf_irq_enable(struct iavf_adapter *adapter, bool flush);
|
||
|
|
void iavf_configure_queues(struct iavf_adapter *adapter);
|
||
|
|
void iavf_deconfigure_queues(struct iavf_adapter *adapter);
|
||
|
|
void iavf_enable_queues(struct iavf_adapter *adapter);
|
||
|
|
void iavf_disable_queues(struct iavf_adapter *adapter);
|
||
|
|
void iavf_map_queues(struct iavf_adapter *adapter);
|
||
|
|
int iavf_request_queues(struct iavf_adapter *adapter, int num);
|
||
|
|
void iavf_add_ether_addrs(struct iavf_adapter *adapter);
|
||
|
|
void iavf_del_ether_addrs(struct iavf_adapter *adapter);
|
||
|
|
void iavf_add_vlans(struct iavf_adapter *adapter);
|
||
|
|
void iavf_del_vlans(struct iavf_adapter *adapter);
|
||
|
|
void iavf_set_promiscuous(struct iavf_adapter *adapter, int flags);
|
||
|
|
void iavf_request_stats(struct iavf_adapter *adapter);
|
||
|
|
void iavf_request_reset(struct iavf_adapter *adapter);
|
||
|
|
void iavf_get_hena(struct iavf_adapter *adapter);
|
||
|
|
void iavf_set_hena(struct iavf_adapter *adapter);
|
||
|
|
void iavf_set_rss_key(struct iavf_adapter *adapter);
|
||
|
|
void iavf_set_rss_lut(struct iavf_adapter *adapter);
|
||
|
|
void iavf_enable_vlan_stripping(struct iavf_adapter *adapter);
|
||
|
|
void iavf_disable_vlan_stripping(struct iavf_adapter *adapter);
|
||
|
|
void iavf_virtchnl_completion(struct iavf_adapter *adapter,
|
||
|
|
enum virtchnl_ops v_opcode,
|
||
|
|
enum iavf_status v_retval, u8 *msg, u16 msglen);
|
||
|
|
int iavf_config_rss(struct iavf_adapter *adapter);
|
||
|
|
int iavf_lan_add_device(struct iavf_adapter *adapter);
|
||
|
|
int iavf_lan_del_device(struct iavf_adapter *adapter);
|
||
|
|
void iavf_client_subtask(struct iavf_adapter *adapter);
|
||
|
|
void iavf_notify_client_message(struct iavf_vsi *vsi, u8 *msg, u16 len);
|
||
|
|
void iavf_notify_client_l2_params(struct iavf_vsi *vsi);
|
||
|
|
void iavf_notify_client_open(struct iavf_vsi *vsi);
|
||
|
|
void iavf_notify_client_close(struct iavf_vsi *vsi, bool reset);
|
||
|
|
void iavf_enable_channels(struct iavf_adapter *adapter);
|
||
|
|
void iavf_disable_channels(struct iavf_adapter *adapter);
|
||
|
|
void iavf_add_cloud_filter(struct iavf_adapter *adapter);
|
||
|
|
void iavf_del_cloud_filter(struct iavf_adapter *adapter);
|
||
|
|
struct iavf_mac_filter *iavf_add_filter(struct iavf_adapter *adapter,
|
||
|
|
const u8 *macaddr);
|
||
|
|
#endif /* _IAVF_H_ */
|