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| Current File : //usr/src/sys/dev/e1000/if_igb.h |
/******************************************************************************
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/*$FreeBSD: release/9.1.0/sys/dev/e1000/if_igb.h 235527 2012-05-16 22:22:52Z jfv $*/
#ifndef _IGB_H_DEFINED_
#define _IGB_H_DEFINED_
/* Tunables */
/*
* IGB_TXD: Maximum number of Transmit Descriptors
*
* 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.
* Since TDLEN should be multiple of 128bytes, the number of transmit
* desscriptors should meet the following condition.
* (num_tx_desc * sizeof(struct e1000_tx_desc)) % 128 == 0
*/
#define IGB_MIN_TXD 256
#define IGB_DEFAULT_TXD 1024
#define IGB_MAX_TXD 4096
/*
* IGB_RXD: Maximum number of Receive Descriptors
*
* This value is the number of receive descriptors allocated by the driver.
* 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. The maximum MTU size is 16110.
* Since TDLEN should be multiple of 128bytes, the number of transmit
* desscriptors should meet the following condition.
* (num_tx_desc * sizeof(struct e1000_tx_desc)) % 128 == 0
*/
#define IGB_MIN_RXD 256
#define IGB_DEFAULT_RXD 1024
#define IGB_MAX_RXD 4096
/*
* IGB_TIDV - Transmit Interrupt Delay Value
* Valid Range: 0-65535 (0=off)
* Default Value: 64
* This value delays the generation of transmit interrupts in units of
* 1.024 microseconds. Transmit interrupt reduction can improve CPU
* efficiency if properly tuned for specific network traffic. If the
* system is reporting dropped transmits, this value may be set too high
* causing the driver to run out of available transmit descriptors.
*/
#define IGB_TIDV 64
/*
* IGB_TADV - Transmit Absolute Interrupt Delay Value
* Valid Range: 0-65535 (0=off)
* Default Value: 64
* This value, in units of 1.024 microseconds, limits the delay in which a
* transmit interrupt is generated. Useful only if IGB_TIDV is non-zero,
* this value ensures that an interrupt is generated after the initial
* packet is sent on the wire within the set amount of time. Proper tuning,
* along with IGB_TIDV, may improve traffic throughput in specific
* network conditions.
*/
#define IGB_TADV 64
/*
* IGB_RDTR - Receive Interrupt Delay Timer (Packet Timer)
* Valid Range: 0-65535 (0=off)
* Default Value: 0
* This value delays the generation of receive interrupts in units of 1.024
* microseconds. Receive interrupt reduction can improve CPU efficiency if
* properly tuned for specific network traffic. Increasing this value adds
* extra latency to frame reception and can end up decreasing the throughput
* of TCP traffic. If the system is reporting dropped receives, this value
* may be set too high, causing the driver to run out of available receive
* descriptors.
*
* CAUTION: When setting IGB_RDTR to a value other than 0, adapters
* may hang (stop transmitting) under certain network conditions.
* If this occurs a WATCHDOG message is logged in the system
* event log. In addition, the controller is automatically reset,
* restoring the network connection. To eliminate the potential
* for the hang ensure that IGB_RDTR is set to 0.
*/
#define IGB_RDTR 0
/*
* Receive Interrupt Absolute Delay Timer (Not valid for 82542/82543/82544)
* Valid Range: 0-65535 (0=off)
* Default Value: 64
* This value, in units of 1.024 microseconds, limits the delay in which a
* receive interrupt is generated. Useful only if IGB_RDTR is non-zero,
* this value ensures that an interrupt is generated after the initial
* packet is received within the set amount of time. Proper tuning,
* along with IGB_RDTR, may improve traffic throughput in specific network
* conditions.
*/
#define IGB_RADV 64
/*
* This parameter controls the duration of transmit watchdog timer.
*/
#define IGB_WATCHDOG (10 * hz)
/*
* This parameter controls when the driver calls the routine to reclaim
* transmit descriptors. Cleaning earlier seems a win.
*/
#define IGB_TX_CLEANUP_THRESHOLD (adapter->num_tx_desc / 2)
/*
* This parameter controls whether or not autonegotation is enabled.
* 0 - Disable autonegotiation
* 1 - Enable autonegotiation
*/
#define DO_AUTO_NEG 1
/*
* This parameter control whether or not the driver will wait for
* autonegotiation to complete.
* 1 - Wait for autonegotiation to complete
* 0 - Don't wait for autonegotiation to complete
*/
#define WAIT_FOR_AUTO_NEG_DEFAULT 0
/* Tunables -- End */
#define AUTONEG_ADV_DEFAULT (ADVERTISE_10_HALF | ADVERTISE_10_FULL | \
ADVERTISE_100_HALF | ADVERTISE_100_FULL | \
ADVERTISE_1000_FULL)
#define AUTO_ALL_MODES 0
/* PHY master/slave setting */
#define IGB_MASTER_SLAVE e1000_ms_hw_default
/*
* Micellaneous constants
*/
#define IGB_VENDOR_ID 0x8086
#define IGB_JUMBO_PBA 0x00000028
#define IGB_DEFAULT_PBA 0x00000030
#define IGB_SMARTSPEED_DOWNSHIFT 3
#define IGB_SMARTSPEED_MAX 15
#define IGB_MAX_LOOP 10
#define IGB_RX_PTHRESH (hw->mac.type <= e1000_82576 ? 16 : 8)
#define IGB_RX_HTHRESH 8
#define IGB_RX_WTHRESH 1
#define IGB_TX_PTHRESH 8
#define IGB_TX_HTHRESH 1
#define IGB_TX_WTHRESH ((hw->mac.type != e1000_82575 && \
adapter->msix_mem) ? 1 : 16)
#define MAX_NUM_MULTICAST_ADDRESSES 128
#define PCI_ANY_ID (~0U)
#define ETHER_ALIGN 2
#define IGB_TX_BUFFER_SIZE ((uint32_t) 1514)
#define IGB_FC_PAUSE_TIME 0x0680
#define IGB_EEPROM_APME 0x400;
/* Queue minimum free for use */
#define IGB_QUEUE_THRESHOLD (adapter->num_tx_desc / 8)
/* Queue bit defines */
#define IGB_QUEUE_IDLE 1
#define IGB_QUEUE_WORKING 2
#define IGB_QUEUE_HUNG 4
#define IGB_QUEUE_DEPLETED 8
/*
* TDBA/RDBA should be aligned on 16 byte boundary. But TDLEN/RDLEN should be
* multiple of 128 bytes. So we align TDBA/RDBA on 128 byte boundary. This will
* also optimize cache line size effect. H/W supports up to cache line size 128.
*/
#define IGB_DBA_ALIGN 128
#define SPEED_MODE_BIT (1<<21) /* On PCI-E MACs only */
/* PCI Config defines */
#define IGB_MSIX_BAR 3
/* 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 IGB_MAX_SCATTER 64
#define IGB_VFTA_SIZE 128
#define IGB_BR_SIZE 4096 /* ring buf size */
#define IGB_TSO_SIZE (65535 + sizeof(struct ether_vlan_header))
#define IGB_TSO_SEG_SIZE 4096 /* Max dma segment size */
#define IGB_HDR_BUF 128
#define IGB_PKTTYPE_MASK 0x0000FFF0
#define ETH_ZLEN 60
#define ETH_ADDR_LEN 6
/* 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
/* Define the starting Interrupt rate per Queue */
#define IGB_INTS_PER_SEC 8000
#define IGB_DEFAULT_ITR ((1000000/IGB_INTS_PER_SEC) << 2)
#define IGB_LINK_ITR 2000
/* Precision Time Sync (IEEE 1588) defines */
#define ETHERTYPE_IEEE1588 0x88F7
#define PICOSECS_PER_TICK 20833
#define TSYNC_PORT 319 /* UDP port for the protocol */
/*
* Bus dma allocation structure used by
* e1000_dma_malloc and e1000_dma_free.
*/
struct igb_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;
int dma_nseg;
};
/*
** Driver queue struct: this is the interrupt container
** for the associated tx and rx ring.
*/
struct igb_queue {
struct adapter *adapter;
u32 msix; /* This queue's MSIX vector */
u32 eims; /* This queue's EIMS bit */
u32 eitr_setting;
struct resource *res;
void *tag;
struct tx_ring *txr;
struct rx_ring *rxr;
struct task que_task;
struct taskqueue *tq;
u64 irqs;
};
/*
* Transmit ring: one per queue
*/
struct tx_ring {
struct adapter *adapter;
u32 me;
struct mtx tx_mtx;
char mtx_name[16];
struct igb_dma_alloc txdma;
struct e1000_tx_desc *tx_base;
u32 next_avail_desc;
u32 next_to_clean;
volatile u16 tx_avail;
struct igb_tx_buffer *tx_buffers;
#if __FreeBSD_version >= 800000
struct buf_ring *br;
#endif
bus_dma_tag_t txtag;
struct task txq_task;
u32 bytes;
u32 packets;
int queue_status;
int watchdog_time;
int tdt;
int tdh;
u64 no_desc_avail;
u64 tx_packets;
};
/*
* Receive ring: one per queue
*/
struct rx_ring {
struct adapter *adapter;
u32 me;
struct igb_dma_alloc rxdma;
union e1000_adv_rx_desc *rx_base;
struct lro_ctrl lro;
bool lro_enabled;
bool hdr_split;
bool discard;
struct mtx rx_mtx;
char mtx_name[16];
u32 next_to_refresh;
u32 next_to_check;
struct igb_rx_buf *rx_buffers;
bus_dma_tag_t htag; /* dma tag for rx head */
bus_dma_tag_t ptag; /* dma tag for rx packet */
/*
* First/last mbuf pointers, for
* collecting multisegment RX packets.
*/
struct mbuf *fmp;
struct mbuf *lmp;
u32 bytes;
u32 packets;
int rdt;
int rdh;
/* Soft stats */
u64 rx_split_packets;
u64 rx_discarded;
u64 rx_packets;
u64 rx_bytes;
};
struct adapter {
struct ifnet *ifp;
struct e1000_hw hw;
struct e1000_osdep osdep;
struct device *dev;
struct cdev *led_dev;
struct resource *pci_mem;
struct resource *msix_mem;
struct resource *res;
void *tag;
u32 que_mask;
int linkvec;
int link_mask;
struct task link_task;
int link_irq;
struct ifmedia media;
struct callout timer;
int msix; /* total vectors allocated */
int if_flags;
int max_frame_size;
int min_frame_size;
int pause_frames;
struct mtx core_mtx;
int igb_insert_vlan_header;
u16 num_queues;
u16 vf_ifp; /* a VF interface */
eventhandler_tag vlan_attach;
eventhandler_tag vlan_detach;
u32 num_vlans;
/* Management and WOL features */
int wol;
int has_manage;
/*
** 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[IGB_VFTA_SIZE];
/* Info about the interface */
u16 link_active;
u16 fc;
u16 link_speed;
u16 link_duplex;
u32 smartspeed;
u32 dmac;
int enable_aim;
/* Interface queues */
struct igb_queue *queues;
/*
* Transmit rings
*/
struct tx_ring *tx_rings;
u16 num_tx_desc;
/* Multicast array pointer */
u8 *mta;
/*
* Receive rings
*/
struct rx_ring *rx_rings;
bool rx_hdr_split;
u16 num_rx_desc;
int rx_process_limit;
u32 rx_mbuf_sz;
u32 rx_mask;
/* 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 rx_overruns;
unsigned long device_control;
unsigned long rx_control;
unsigned long int_mask;
unsigned long eint_mask;
unsigned long packet_buf_alloc_rx;
unsigned long packet_buf_alloc_tx;
boolean_t in_detach;
#ifdef IGB_IEEE1588
/* IEEE 1588 precision time support */
struct cyclecounter cycles;
struct nettimer clock;
struct nettime_compare compare;
struct hwtstamp_ctrl hwtstamp;
#endif
void *stats;
};
/* ******************************************************************************
* vendor_info_array
*
* This array contains the list of Subvendor/Subdevice IDs on which the driver
* should load.
*
* ******************************************************************************/
typedef struct _igb_vendor_info_t {
unsigned int vendor_id;
unsigned int device_id;
unsigned int subvendor_id;
unsigned int subdevice_id;
unsigned int index;
} igb_vendor_info_t;
struct igb_tx_buffer {
int next_eop; /* Index of the desc to watch */
struct mbuf *m_head;
bus_dmamap_t map; /* bus_dma map for packet */
};
struct igb_rx_buf {
struct mbuf *m_head;
struct mbuf *m_pack;
bus_dmamap_t hmap; /* bus_dma map for header */
bus_dmamap_t pmap; /* bus_dma map for packet */
};
/*
** Find the number of unrefreshed RX descriptors
*/
static inline u16
igb_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);
}
#define IGB_CORE_LOCK_INIT(_sc, _name) \
mtx_init(&(_sc)->core_mtx, _name, "IGB Core Lock", MTX_DEF)
#define IGB_CORE_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->core_mtx)
#define IGB_CORE_LOCK(_sc) mtx_lock(&(_sc)->core_mtx)
#define IGB_CORE_UNLOCK(_sc) mtx_unlock(&(_sc)->core_mtx)
#define IGB_CORE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->core_mtx, MA_OWNED)
#define IGB_TX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->tx_mtx)
#define IGB_TX_LOCK(_sc) mtx_lock(&(_sc)->tx_mtx)
#define IGB_TX_UNLOCK(_sc) mtx_unlock(&(_sc)->tx_mtx)
#define IGB_TX_TRYLOCK(_sc) mtx_trylock(&(_sc)->tx_mtx)
#define IGB_TX_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->tx_mtx, MA_OWNED)
#define IGB_RX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->rx_mtx)
#define IGB_RX_LOCK(_sc) mtx_lock(&(_sc)->rx_mtx)
#define IGB_RX_UNLOCK(_sc) mtx_unlock(&(_sc)->rx_mtx)
#define IGB_RX_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->rx_mtx, MA_OWNED)
#define UPDATE_VF_REG(reg, last, cur) \
{ \
u32 new = E1000_READ_REG(hw, reg); \
if (new < last) \
cur += 0x100000000LL; \
last = new; \
cur &= 0xFFFFFFFF00000000LL; \
cur |= new; \
}
#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
#endif /* _IGB_H_DEFINED_ */