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-/******************************************************************************
-
- Copyright (c) 2001-2012, Intel Corporation
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
-
- 1. Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
-
- 2. 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.
-
- 3. Neither the name of the 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.
-
-******************************************************************************/
-/*$FreeBSD$*/
-
-
-#ifndef _IXV_H_
-#define _IXV_H_
-
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/mbuf.h>
-#include <sys/protosw.h>
-#include <sys/socket.h>
-#include <sys/malloc.h>
-#include <sys/kernel.h>
-#include <sys/lock.h>
-#include <sys/module.h>
-#include <sys/mutex.h>
-#include <sys/sockio.h>
-#include <sys/eventhandler.h>
-
-#include <net/if.h>
-#include <net/if_var.h>
-#include <net/if_arp.h>
-#include <net/bpf.h>
-#include <net/ethernet.h>
-#include <net/if_dl.h>
-#include <net/if_media.h>
-
-#include <net/bpf.h>
-#include <net/if_types.h>
-#include <net/if_vlan_var.h>
-
-#include <netinet/in_systm.h>
-#include <netinet/in.h>
-#include <netinet/if_ether.h>
-#include <netinet/ip.h>
-#include <netinet/ip6.h>
-#include <netinet/tcp.h>
-#include <netinet/tcp_lro.h>
-#include <netinet/udp.h>
-
-#include <machine/in_cksum.h>
-
-#include <sys/bus.h>
-#include <machine/bus.h>
-#include <sys/rman.h>
-#include <machine/resource.h>
-#include <vm/vm.h>
-#include <vm/pmap.h>
-#include <machine/clock.h>
-#include <dev/pci/pcivar.h>
-#include <dev/pci/pcireg.h>
-#include <sys/proc.h>
-#include <sys/sysctl.h>
-#include <sys/endian.h>
-#include <sys/taskqueue.h>
-#include <sys/pcpu.h>
-#include <sys/smp.h>
-#include <machine/smp.h>
-
-#include "ixgbe_api.h"
-#include "ixgbe_vf.h"
-
-/* Tunables */
-
-/*
- * TxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
- * number of transmit descriptors allocated by the driver. Increasing this
- * value allows the driver to queue more transmits. Each descriptor is 16
- * bytes. Performance tests have show the 2K value to be optimal for top
- * performance.
- */
-#define DEFAULT_TXD 1024
-#define PERFORM_TXD 2048
-#define MAX_TXD 4096
-#define MIN_TXD 64
-
-/*
- * RxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
- * number of receive descriptors allocated for each RX queue. Increasing this
- * value allows the driver to buffer more incoming packets. Each descriptor
- * is 16 bytes. A receive buffer is also allocated for each descriptor.
- *
- * Note: with 8 rings and a dual port card, it is possible to bump up
- * against the system mbuf pool limit, you can tune nmbclusters
- * to adjust for this.
- */
-#define DEFAULT_RXD 1024
-#define PERFORM_RXD 2048
-#define MAX_RXD 4096
-#define MIN_RXD 64
-
-/* Alignment for rings */
-#define DBA_ALIGN 128
-
-/*
- * This parameter controls the maximum no of times the driver will loop in
- * the isr. Minimum Value = 1
- */
-#define MAX_LOOP 10
-
-/*
- * This is the max watchdog interval, ie. the time that can
- * pass between any two TX clean operations, such only happening
- * when the TX hardware is functioning.
- */
-#define IXV_WATCHDOG (10 * hz)
-
-/*
- * This parameters control when the driver calls the routine to reclaim
- * transmit descriptors.
- */
-#define IXV_TX_CLEANUP_THRESHOLD (adapter->num_tx_desc / 8)
-#define IXV_TX_OP_THRESHOLD (adapter->num_tx_desc / 32)
-
-#define IXV_MAX_FRAME_SIZE 0x3F00
-
-/* Flow control constants */
-#define IXV_FC_PAUSE 0xFFFF
-#define IXV_FC_HI 0x20000
-#define IXV_FC_LO 0x10000
-
-/* Defines for printing debug information */
-#define DEBUG_INIT 0
-#define DEBUG_IOCTL 0
-#define DEBUG_HW 0
-
-#define INIT_DEBUGOUT(S) if (DEBUG_INIT) printf(S "\n")
-#define INIT_DEBUGOUT1(S, A) if (DEBUG_INIT) printf(S "\n", A)
-#define INIT_DEBUGOUT2(S, A, B) if (DEBUG_INIT) printf(S "\n", A, B)
-#define IOCTL_DEBUGOUT(S) if (DEBUG_IOCTL) printf(S "\n")
-#define IOCTL_DEBUGOUT1(S, A) if (DEBUG_IOCTL) printf(S "\n", A)
-#define IOCTL_DEBUGOUT2(S, A, B) if (DEBUG_IOCTL) printf(S "\n", A, B)
-#define HW_DEBUGOUT(S) if (DEBUG_HW) printf(S "\n")
-#define HW_DEBUGOUT1(S, A) if (DEBUG_HW) printf(S "\n", A)
-#define HW_DEBUGOUT2(S, A, B) if (DEBUG_HW) printf(S "\n", A, B)
-
-#define MAX_NUM_MULTICAST_ADDRESSES 128
-#define IXV_EITR_DEFAULT 128
-#define IXV_SCATTER 32
-#define IXV_RX_HDR 128
-#define MSIX_BAR 3
-#define IXV_TSO_SIZE 65535
-#define IXV_BR_SIZE 4096
-#define IXV_LINK_ITR 2000
-#define TX_BUFFER_SIZE ((u32) 1514)
-#define VFTA_SIZE 128
-
-/* Offload bits in mbuf flag */
-#if __FreeBSD_version >= 800000
-#define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP)
-#else
-#define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP)
-#endif
-
-/*
- *****************************************************************************
- * vendor_info_array
- *
- * This array contains the list of Subvendor/Subdevice IDs on which the driver
- * should load.
- *
- *****************************************************************************
- */
-typedef struct _ixv_vendor_info_t {
- unsigned int vendor_id;
- unsigned int device_id;
- unsigned int subvendor_id;
- unsigned int subdevice_id;
- unsigned int index;
-} ixv_vendor_info_t;
-
-
-struct ixv_tx_buf {
- u32 eop_index;
- struct mbuf *m_head;
- bus_dmamap_t map;
-};
-
-struct ixv_rx_buf {
- struct mbuf *m_head;
- struct mbuf *m_pack;
- struct mbuf *fmp;
- bus_dmamap_t hmap;
- bus_dmamap_t pmap;
-};
-
-/*
- * Bus dma allocation structure used by ixv_dma_malloc and ixv_dma_free.
- */
-struct ixv_dma_alloc {
- bus_addr_t dma_paddr;
- caddr_t dma_vaddr;
- bus_dma_tag_t dma_tag;
- bus_dmamap_t dma_map;
- bus_dma_segment_t dma_seg;
- bus_size_t dma_size;
- int dma_nseg;
-};
-
-/*
-** Driver queue struct: this is the interrupt container
-** for the associated tx and rx ring.
-*/
-struct ix_queue {
- struct adapter *adapter;
- u32 msix; /* This queue's MSIX vector */
- u32 eims; /* This queue's EIMS bit */
- u32 eitr_setting;
- u32 eitr; /* cached reg */
- struct resource *res;
- void *tag;
- struct tx_ring *txr;
- struct rx_ring *rxr;
- struct task que_task;
- struct taskqueue *tq;
- u64 irqs;
-};
-
-/*
- * The transmit ring, one per queue
- */
-struct tx_ring {
- struct adapter *adapter;
- struct mtx tx_mtx;
- u32 me;
- bool watchdog_check;
- int watchdog_time;
- union ixgbe_adv_tx_desc *tx_base;
- struct ixv_dma_alloc txdma;
- u32 next_avail_desc;
- u32 next_to_clean;
- struct ixv_tx_buf *tx_buffers;
- volatile u16 tx_avail;
- u32 txd_cmd;
- bus_dma_tag_t txtag;
- char mtx_name[16];
- struct buf_ring *br;
- /* Soft Stats */
- u32 bytes;
- u32 packets;
- u64 no_desc_avail;
- u64 total_packets;
-};
-
-
-/*
- * The Receive ring, one per rx queue
- */
-struct rx_ring {
- struct adapter *adapter;
- struct mtx rx_mtx;
- u32 me;
- union ixgbe_adv_rx_desc *rx_base;
- struct ixv_dma_alloc rxdma;
- struct lro_ctrl lro;
- bool lro_enabled;
- bool hdr_split;
- bool discard;
- u32 next_to_refresh;
- u32 next_to_check;
- char mtx_name[16];
- struct ixv_rx_buf *rx_buffers;
- bus_dma_tag_t htag;
- bus_dma_tag_t ptag;
-
- u32 bytes; /* Used for AIM calc */
- u32 packets;
-
- /* Soft stats */
- u64 rx_irq;
- u64 rx_split_packets;
- u64 rx_packets;
- u64 rx_bytes;
- u64 rx_discarded;
-};
-
-/* Our adapter structure */
-struct adapter {
- struct ifnet *ifp;
- struct ixgbe_hw hw;
-
- struct ixgbe_osdep osdep;
- struct device *dev;
-
- struct resource *pci_mem;
- struct resource *msix_mem;
-
- /*
- * Interrupt resources: this set is
- * either used for legacy, or for Link
- * when doing MSIX
- */
- void *tag;
- struct resource *res;
-
- struct ifmedia media;
- struct callout timer;
- int msix;
- int if_flags;
-
- struct mtx core_mtx;
-
- eventhandler_tag vlan_attach;
- eventhandler_tag vlan_detach;
-
- u16 num_vlans;
- u16 num_queues;
-
- /* Info about the board itself */
- bool link_active;
- u16 max_frame_size;
- u32 link_speed;
- bool link_up;
- u32 mbxvec;
-
- /* Mbuf cluster size */
- u32 rx_mbuf_sz;
-
- /* Support for pluggable optics */
- struct task mbx_task; /* Mailbox tasklet */
- struct taskqueue *tq;
-
- /*
- ** Queues:
- ** This is the irq holder, it has
- ** and RX/TX pair or rings associated
- ** with it.
- */
- struct ix_queue *queues;
-
- /*
- * Transmit rings:
- * Allocated at run time, an array of rings.
- */
- struct tx_ring *tx_rings;
- int num_tx_desc;
-
- /*
- * Receive rings:
- * Allocated at run time, an array of rings.
- */
- struct rx_ring *rx_rings;
- int num_rx_desc;
- u64 que_mask;
- u32 rx_process_limit;
-
- /* Misc stats maintained by the driver */
- unsigned long dropped_pkts;
- unsigned long mbuf_defrag_failed;
- unsigned long mbuf_header_failed;
- unsigned long mbuf_packet_failed;
- unsigned long no_tx_map_avail;
- unsigned long no_tx_dma_setup;
- unsigned long watchdog_events;
- unsigned long tso_tx;
- unsigned long mbx_irq;
-
- struct ixgbevf_hw_stats stats;
-};
-
-
-#define IXV_CORE_LOCK_INIT(_sc, _name) \
- mtx_init(&(_sc)->core_mtx, _name, "IXV Core Lock", MTX_DEF)
-#define IXV_CORE_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->core_mtx)
-#define IXV_TX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->tx_mtx)
-#define IXV_RX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->rx_mtx)
-#define IXV_CORE_LOCK(_sc) mtx_lock(&(_sc)->core_mtx)
-#define IXV_TX_LOCK(_sc) mtx_lock(&(_sc)->tx_mtx)
-#define IXV_TX_TRYLOCK(_sc) mtx_trylock(&(_sc)->tx_mtx)
-#define IXV_RX_LOCK(_sc) mtx_lock(&(_sc)->rx_mtx)
-#define IXV_CORE_UNLOCK(_sc) mtx_unlock(&(_sc)->core_mtx)
-#define IXV_TX_UNLOCK(_sc) mtx_unlock(&(_sc)->tx_mtx)
-#define IXV_RX_UNLOCK(_sc) mtx_unlock(&(_sc)->rx_mtx)
-#define IXV_CORE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->core_mtx, MA_OWNED)
-#define IXV_TX_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->tx_mtx, MA_OWNED)
-
-/* Workaround to make 8.0 buildable */
-#if __FreeBSD_version >= 800000 && __FreeBSD_version < 800504
-static __inline int
-drbr_needs_enqueue(struct ifnet *ifp, struct buf_ring *br)
-{
-#ifdef ALTQ
- if (ALTQ_IS_ENABLED(&ifp->if_snd))
- return (1);
-#endif
- return (!buf_ring_empty(br));
-}
-#endif
-
-/*
-** Find the number of unrefreshed RX descriptors
-*/
-static inline u16
-ixv_rx_unrefreshed(struct rx_ring *rxr)
-{
- struct adapter *adapter = rxr->adapter;
-
- if (rxr->next_to_check > rxr->next_to_refresh)
- return (rxr->next_to_check - rxr->next_to_refresh - 1);
- else
- return ((adapter->num_rx_desc + rxr->next_to_check) -
- rxr->next_to_refresh - 1);
-}
-
-#endif /* _IXV_H_ */
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