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freebsd-skq/sys/dev/ixgbe/ixgbe.h
Eric Joyner 6f37f2324d Add support for certain Intel X550 devices. 
These include standalone X550 adapters, X552 10GbE backplane, and
X552/X557-AT 10GBASE-T; with the latter two being integrated into Xeon D SoCs.

As well, this bumps the ixgbe version number to 2.8.3, and includes updates
to shared code for support for the new devices.

Differential Revision: D2414
Reviewed by:	gnn, adrian
Approved by:	jfv (mentor), gnn (mentor)
2015-04-30 22:53:27 +00:00

675 lines
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/******************************************************************************
Copyright (c) 2001-2015, 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 _IXGBE_H_
#define _IXGBE_H_
#include <sys/param.h>
#include <sys/systm.h>
#ifndef IXGBE_LEGACY_TX
#include <sys/buf_ring.h>
#endif
#include <sys/mbuf.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/module.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 <sys/sbuf.h>
#include "ixgbe_api.h"
#include "ixgbe_common.h"
#include "ixgbe_phy.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 IXGBE_WATCHDOG (10 * hz)
/*
* This parameters control when the driver calls the routine to reclaim
* transmit descriptors.
*/
#define IXGBE_TX_CLEANUP_THRESHOLD (adapter->num_tx_desc / 8)
#define IXGBE_TX_OP_THRESHOLD (adapter->num_tx_desc / 32)
/* These defines are used in MTU calculations */
#define IXGBE_MAX_FRAME_SIZE 9728
#define IXGBE_MTU_HDR (ETHER_HDR_LEN + ETHER_CRC_LEN + \
ETHER_VLAN_ENCAP_LEN)
#define IXGBE_MAX_MTU (IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR)
/* Flow control constants */
#define IXGBE_FC_PAUSE 0xFFFF
#define IXGBE_FC_HI 0x20000
#define IXGBE_FC_LO 0x10000
/*
* Used for optimizing small rx mbufs. Effort is made to keep the copy
* small and aligned for the CPU L1 cache.
*
* MHLEN is typically 168 bytes, giving us 8-byte alignment. Getting
* 32 byte alignment needed for the fast bcopy results in 8 bytes being
* wasted. Getting 64 byte alignment, which _should_ be ideal for
* modern Intel CPUs, results in 40 bytes wasted and a significant drop
* in observed efficiency of the optimization, 97.9% -> 81.8%.
*/
#define IXGBE_RX_COPY_HDR_PADDED ((((MPKTHSIZE - 1) / 32) + 1) * 32)
#define IXGBE_RX_COPY_LEN (MSIZE - IXGBE_RX_COPY_HDR_PADDED)
#define IXGBE_RX_COPY_ALIGN (IXGBE_RX_COPY_HDR_PADDED - MPKTHSIZE)
/* Keep older OS drivers building... */
#if !defined(SYSCTL_ADD_UQUAD)
#define SYSCTL_ADD_UQUAD SYSCTL_ADD_QUAD
#endif
/* 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 IXGBE_82598_SCATTER 100
#define IXGBE_82599_SCATTER 32
#define MSIX_82598_BAR 3
#define MSIX_82599_BAR 4
#define IXGBE_TSO_SIZE 262140
#define IXGBE_TX_BUFFER_SIZE ((u32) 1514)
#define IXGBE_RX_HDR 128
#define IXGBE_VFTA_SIZE 128
#define IXGBE_BR_SIZE 4096
#define IXGBE_QUEUE_MIN_FREE 32
#define IXGBE_MAX_TX_BUSY 10
#define IXGBE_QUEUE_HUNG 0x80000000
#define IXV_EITR_DEFAULT 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
/* Backward compatibility items for very old versions */
#ifndef pci_find_cap
#define pci_find_cap pci_find_extcap
#endif
#ifndef DEVMETHOD_END
#define DEVMETHOD_END { NULL, NULL }
#endif
/*
* Interrupt Moderation parameters
*/
#define IXGBE_LOW_LATENCY 128
#define IXGBE_AVE_LATENCY 400
#define IXGBE_BULK_LATENCY 1200
#define IXGBE_LINK_ITR 2000
/* MAC type macros */
#define IXGBE_IS_X550VF(_adapter) \
((_adapter->hw.mac.type == ixgbe_mac_X550_vf) || \
(_adapter->hw.mac.type == ixgbe_mac_X550EM_x_vf))
#define IXGBE_IS_VF(_adapter) \
(IXGBE_IS_X550VF(_adapter) || \
(_adapter->hw.mac.type == ixgbe_mac_X540_vf) || \
(_adapter->hw.mac.type == ixgbe_mac_82599_vf))
/*
*****************************************************************************
* vendor_info_array
*
* This array contains the list of Subvendor/Subdevice IDs on which the driver
* should load.
*
*****************************************************************************
*/
typedef struct _ixgbe_vendor_info_t {
unsigned int vendor_id;
unsigned int device_id;
unsigned int subvendor_id;
unsigned int subdevice_id;
unsigned int index;
} ixgbe_vendor_info_t;
struct ixgbe_tx_buf {
union ixgbe_adv_tx_desc *eop;
struct mbuf *m_head;
bus_dmamap_t map;
};
struct ixgbe_rx_buf {
struct mbuf *buf;
struct mbuf *fmp;
bus_dmamap_t pmap;
u_int flags;
#define IXGBE_RX_COPY 0x01
uint64_t addr;
};
/*
* Bus dma allocation structure used by ixgbe_dma_malloc and ixgbe_dma_free.
*/
struct ixgbe_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 me;
struct resource *res;
void *tag;
int busy;
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;
u32 tail;
int busy;
union ixgbe_adv_tx_desc *tx_base;
struct ixgbe_tx_buf *tx_buffers;
struct ixgbe_dma_alloc txdma;
volatile u16 tx_avail;
u16 next_avail_desc;
u16 next_to_clean;
u16 process_limit;
u16 num_desc;
u32 txd_cmd;
bus_dma_tag_t txtag;
char mtx_name[16];
#ifndef IXGBE_LEGACY_TX
struct buf_ring *br;
struct task txq_task;
#endif
#ifdef IXGBE_FDIR
u16 atr_sample;
u16 atr_count;
#endif
u32 bytes; /* used for AIM */
u32 packets;
/* Soft Stats */
unsigned long tso_tx;
unsigned long no_tx_map_avail;
unsigned long no_tx_dma_setup;
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;
u32 tail;
union ixgbe_adv_rx_desc *rx_base;
struct ixgbe_dma_alloc rxdma;
struct lro_ctrl lro;
bool lro_enabled;
bool hw_rsc;
bool vtag_strip;
u16 next_to_refresh;
u16 next_to_check;
u16 num_desc;
u16 mbuf_sz;
u16 process_limit;
char mtx_name[16];
struct ixgbe_rx_buf *rx_buffers;
bus_dma_tag_t ptag;
u32 bytes; /* Used for AIM calc */
u32 packets;
/* Soft stats */
u64 rx_irq;
u64 rx_copies;
u64 rx_packets;
u64 rx_bytes;
u64 rx_discarded;
u64 rsc_num;
#ifdef IXGBE_FDIR
u64 flm;
#endif
};
/* 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;
/*
** Shadow VFTA table, this is needed because
** the real vlan filter table gets cleared during
** a soft reset and the driver needs to be able
** to repopulate it.
*/
u32 shadow_vfta[IXGBE_VFTA_SIZE];
/* Info about the interface */
u32 optics;
u32 fc; /* local flow ctrl setting */
int advertise; /* link speeds */
bool link_active;
u16 max_frame_size;
u16 num_segs;
u32 link_speed;
bool link_up;
u32 vector;
u16 dmac;
bool eee_support;
bool eee_enabled;
/* Power management-related */
bool wol_support;
u32 wufc;
/* Mbuf cluster size */
u32 rx_mbuf_sz;
/* Support for pluggable optics */
bool sfp_probe;
struct task link_task; /* Link tasklet */
struct task mod_task; /* SFP tasklet */
struct task msf_task; /* Multispeed Fiber */
#ifdef IXGBE_FDIR
int fdir_reinit;
struct task fdir_task;
#endif
struct task phy_task; /* PHY intr 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;
u32 num_tx_desc;
/*
* Receive rings:
* Allocated at run time, an array of rings.
*/
struct rx_ring *rx_rings;
u64 active_queues;
u32 num_rx_desc;
/* Multicast array memory */
u8 *mta;
/* 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 watchdog_events;
unsigned long link_irq;
union {
struct ixgbe_hw_stats pf;
struct ixgbevf_hw_stats vf;
} stats;
#if __FreeBSD_version >= 1100036
/* counter(9) stats */
u64 ipackets;
u64 ierrors;
u64 opackets;
u64 oerrors;
u64 ibytes;
u64 obytes;
u64 imcasts;
u64 omcasts;
u64 iqdrops;
u64 noproto;
#endif
};
/* Precision Time Sync (IEEE 1588) defines */
#define ETHERTYPE_IEEE1588 0x88F7
#define PICOSECS_PER_TICK 20833
#define TSYNC_UDP_PORT 319 /* UDP port for the protocol */
#define IXGBE_ADVTXD_TSTAMP 0x00080000
#define IXGBE_CORE_LOCK_INIT(_sc, _name) \
mtx_init(&(_sc)->core_mtx, _name, "IXGBE Core Lock", MTX_DEF)
#define IXGBE_CORE_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->core_mtx)
#define IXGBE_TX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->tx_mtx)
#define IXGBE_RX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->rx_mtx)
#define IXGBE_CORE_LOCK(_sc) mtx_lock(&(_sc)->core_mtx)
#define IXGBE_TX_LOCK(_sc) mtx_lock(&(_sc)->tx_mtx)
#define IXGBE_TX_TRYLOCK(_sc) mtx_trylock(&(_sc)->tx_mtx)
#define IXGBE_RX_LOCK(_sc) mtx_lock(&(_sc)->rx_mtx)
#define IXGBE_CORE_UNLOCK(_sc) mtx_unlock(&(_sc)->core_mtx)
#define IXGBE_TX_UNLOCK(_sc) mtx_unlock(&(_sc)->tx_mtx)
#define IXGBE_RX_UNLOCK(_sc) mtx_unlock(&(_sc)->rx_mtx)
#define IXGBE_CORE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->core_mtx, MA_OWNED)
#define IXGBE_TX_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->tx_mtx, MA_OWNED)
/* For backward compatibility */
#if !defined(PCIER_LINK_STA)
#define PCIER_LINK_STA PCIR_EXPRESS_LINK_STA
#endif
/* Stats macros */
#if __FreeBSD_version >= 1100036
#define IXGBE_SET_IPACKETS(sc, count) (sc)->ipackets = (count)
#define IXGBE_SET_IERRORS(sc, count) (sc)->ierrors = (count)
#define IXGBE_SET_OPACKETS(sc, count) (sc)->opackets = (count)
#define IXGBE_SET_OERRORS(sc, count) (sc)->oerrors = (count)
#define IXGBE_SET_COLLISIONS(sc, count)
#define IXGBE_SET_IBYTES(sc, count) (sc)->ibytes = (count)
#define IXGBE_SET_OBYTES(sc, count) (sc)->obytes = (count)
#define IXGBE_SET_IMCASTS(sc, count) (sc)->imcasts = (count)
#define IXGBE_SET_OMCASTS(sc, count) (sc)->omcasts = (count)
#define IXGBE_SET_IQDROPS(sc, count) (sc)->iqdrops = (count)
#else
#define IXGBE_SET_IPACKETS(sc, count) (sc)->ifp->if_ipackets = (count)
#define IXGBE_SET_IERRORS(sc, count) (sc)->ifp->if_ierrors = (count)
#define IXGBE_SET_OPACKETS(sc, count) (sc)->ifp->if_opackets = (count)
#define IXGBE_SET_OERRORS(sc, count) (sc)->ifp->if_oerrors = (count)
#define IXGBE_SET_COLLISIONS(sc, count) (sc)->ifp->if_collisions = (count)
#define IXGBE_SET_IBYTES(sc, count) (sc)->ifp->if_ibytes = (count)
#define IXGBE_SET_OBYTES(sc, count) (sc)->ifp->if_obytes = (count)
#define IXGBE_SET_IMCASTS(sc, count) (sc)->ifp->if_imcasts = (count)
#define IXGBE_SET_OMCASTS(sc, count) (sc)->ifp->if_omcasts = (count)
#define IXGBE_SET_IQDROPS(sc, count) (sc)->ifp->if_iqdrops = (count)
#endif
/* External PHY register addresses */
#define IXGBE_PHY_CURRENT_TEMP 0xC820
#define IXGBE_PHY_OVERTEMP_STATUS 0xC830
/* Sysctl help messages; displayed with sysctl -d */
#define IXGBE_SYSCTL_DESC_ADV_SPEED \
"\nControl advertised link speed using these flags:\n" \
"\t0x1 - advertise 100M\n" \
"\t0x2 - advertise 1G\n" \
"\t0x4 - advertise 10G\n\n" \
"\t100M is only supported on certain 10GBaseT adapters.\n"
#define IXGBE_SYSCTL_DESC_SET_FC \
"\nSet flow control mode using these values:\n" \
"\t0 - off\n" \
"\t1 - rx pause\n" \
"\t2 - tx pause\n" \
"\t3 - tx and rx pause"
static inline bool
ixgbe_is_sfp(struct ixgbe_hw *hw)
{
switch (hw->phy.type) {
case ixgbe_phy_sfp_avago:
case ixgbe_phy_sfp_ftl:
case ixgbe_phy_sfp_intel:
case ixgbe_phy_sfp_unknown:
case ixgbe_phy_sfp_passive_tyco:
case ixgbe_phy_sfp_passive_unknown:
case ixgbe_phy_qsfp_passive_unknown:
case ixgbe_phy_qsfp_active_unknown:
case ixgbe_phy_qsfp_intel:
case ixgbe_phy_qsfp_unknown:
return TRUE;
default:
return FALSE;
}
}
/* 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
ixgbe_rx_unrefreshed(struct rx_ring *rxr)
{
if (rxr->next_to_check > rxr->next_to_refresh)
return (rxr->next_to_check - rxr->next_to_refresh - 1);
else
return ((rxr->num_desc + rxr->next_to_check) -
rxr->next_to_refresh - 1);
}
/*
** This checks for a zero mac addr, something that will be likely
** unless the Admin on the Host has created one.
*/
static inline bool
ixv_check_ether_addr(u8 *addr)
{
bool status = TRUE;
if ((addr[0] == 0 && addr[1]== 0 && addr[2] == 0 &&
addr[3] == 0 && addr[4]== 0 && addr[5] == 0))
status = FALSE;
return (status);
}
/* Shared Prototypes */
#ifdef IXGBE_LEGACY_TX
void ixgbe_start(struct ifnet *);
void ixgbe_start_locked(struct tx_ring *, struct ifnet *);
#else /* ! IXGBE_LEGACY_TX */
int ixgbe_mq_start(struct ifnet *, struct mbuf *);
int ixgbe_mq_start_locked(struct ifnet *, struct tx_ring *);
void ixgbe_qflush(struct ifnet *);
void ixgbe_deferred_mq_start(void *, int);
#endif /* IXGBE_LEGACY_TX */
int ixgbe_allocate_queues(struct adapter *);
int ixgbe_allocate_transmit_buffers(struct tx_ring *);
int ixgbe_setup_transmit_structures(struct adapter *);
void ixgbe_free_transmit_structures(struct adapter *);
int ixgbe_allocate_receive_buffers(struct rx_ring *);
int ixgbe_setup_receive_structures(struct adapter *);
void ixgbe_free_receive_structures(struct adapter *);
void ixgbe_txeof(struct tx_ring *);
bool ixgbe_rxeof(struct ix_queue *);
int ixgbe_dma_malloc(struct adapter *,
bus_size_t, struct ixgbe_dma_alloc *, int);
void ixgbe_dma_free(struct adapter *, struct ixgbe_dma_alloc *);
#endif /* _IXGBE_H_ */
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