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/* $OpenBSD: if_ix.h,v 1.24 2013/08/05 19:58:05 mikeb Exp $ */
/******************************************************************************
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: src/sys/dev/ixgbe/ixgbe.h,v 1.38 2012/12/20 22:29:29 svnexp Exp $*/
#ifndef _IX_H_
#define _IX_H_
#include <dev/pci/ixgbe.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 256
#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 256
#define PERFORM_RXD 2048
#define MAX_RXD 4096
#define MIN_RXD 64
/* Alignment for rings */
#define DBA_ALIGN 128
/*
* This parameter controls the duration of transmit watchdog timer.
*/
#define IXGBE_TX_TIMEOUT 5 /* set to 5 seconds */
/*
* This parameters control when the driver calls the routine to reclaim
* transmit descriptors.
*/
#define IXGBE_TX_CLEANUP_THRESHOLD (sc->num_tx_desc / 16)
#define IXGBE_TX_OP_THRESHOLD (sc->num_tx_desc / 32)
#define IXGBE_MAX_FRAME_SIZE 0x3F00
/* Flow control constants */
#define IXGBE_FC_PAUSE 0xFFFF
#define IXGBE_FC_HI 0x20000
#define IXGBE_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 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 ((uint32_t) 1514)
#define IXGBE_RX_HDR 128
#define IXGBE_VFTA_SIZE 128
#define IXGBE_BR_SIZE 4096
#define IXGBE_QUEUE_MIN_FREE 32
/*
* Interrupt Moderation parameters
*/
#define IXGBE_INTS_PER_SEC 8000
struct ixgbe_tx_buf {
uint32_t eop_index;
struct mbuf *m_head;
bus_dmamap_t map;
};
struct ixgbe_rx_buf {
struct mbuf *buf;
struct mbuf *fmp;
bus_dmamap_t map;
};
/*
* Bus dma allocation structure used by ixgbe_dma_malloc and ixgbe_dma_free.
*/
struct ixgbe_dma_alloc {
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 ix_softc *sc;
uint32_t msix; /* This queue's MSIX vector */
uint32_t eims; /* This queue's EIMS bit */
uint32_t eitr_setting;
void *tag;
struct tx_ring *txr;
struct rx_ring *rxr;
};
/*
* The transmit ring, one per tx queue
*/
struct tx_ring {
struct ix_softc *sc;
uint32_t me;
uint32_t watchdog_timer;
union ixgbe_adv_tx_desc *tx_base;
struct ixgbe_tx_buf *tx_buffers;
struct ixgbe_dma_alloc txdma;
volatile uint16_t tx_avail;
uint32_t next_avail_desc;
uint32_t next_to_clean;
enum {
IXGBE_QUEUE_IDLE,
IXGBE_QUEUE_WORKING,
IXGBE_QUEUE_HUNG,
} queue_status;
uint32_t txd_cmd;
bus_dma_tag_t txtag;
uint32_t bytes; /* Used for AIM calc */
uint32_t packets;
/* Soft Stats */
uint64_t tx_packets;
};
/*
* The Receive ring, one per rx queue
*/
struct rx_ring {
struct ix_softc *sc;
uint32_t me;
union ixgbe_adv_rx_desc *rx_base;
struct ixgbe_dma_alloc rxdma;
#if 0
struct lro_ctrl lro;
#endif
bool lro_enabled;
bool hw_rsc;
bool discard;
uint next_to_refresh;
uint next_to_check;
uint last_desc_filled;
int rx_ndescs;
struct ixgbe_rx_buf *rx_buffers;
uint32_t bytes; /* Used for AIM calc */
uint32_t packets;
/* Soft stats */
uint64_t rx_irq;
uint64_t rx_packets;
uint64_t rx_bytes;
uint64_t rx_discarded;
uint64_t rsc_num;
};
/* Our adapter structure */
struct ix_softc {
struct device dev;
struct arpcom arpcom;
struct ixgbe_hw hw;
struct ixgbe_osdep osdep;
void *tag;
struct ifmedia media;
struct timeout timer;
struct timeout rx_refill;
int msix;
int if_flags;
uint16_t num_vlans;
uint16_t 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.
*/
uint32_t shadow_vfta[IXGBE_VFTA_SIZE];
/* Info about the interface */
uint optics;
uint32_t fc; /* local flow ctrl setting */
int advertise; /* link speeds */
uint16_t max_frame_size;
uint16_t num_segs;
uint32_t link_speed;
bool link_up;
uint32_t linkvec;
/* Mbuf cluster size */
uint32_t rx_mbuf_sz;
/* Support for pluggable optics */
bool sfp_probe;
/*
* 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;
uint64_t que_mask;
int num_rx_desc;
/* Multicast array memory */
uint8_t *mta;
/* Misc stats maintained by the driver */
unsigned long dropped_pkts;
unsigned long no_tx_map_avail;
unsigned long no_tx_dma_setup;
unsigned long watchdog_events;
unsigned long tso_tx;
unsigned long link_irq;
struct ixgbe_hw_stats stats;
};
#endif /* _IX_H_ */
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