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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:
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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.
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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
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/*$FreeBSD: release/9.1.0/sys/dev/ixgbe/ixv.h 235528 2012-05-17 00:06:54Z jfv $*/
#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/module.h>
#include <sys/sockio.h>
#include <net/if.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_ */