349 lines
9.4 KiB
C
349 lines
9.4 KiB
C
/**************************************************************************
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Copyright (c) 2001-2007, Intel Corporation
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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***************************************************************************/
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/* $FreeBSD$ */
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#ifndef _IXGBE_H_
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#define _IXGBE_H_
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/sockio.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/bpf.h>
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#include <net/ethernet.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/bpf.h>
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#include <net/if_types.h>
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#include <net/if_vlan_var.h>
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#include <netinet/in_systm.h>
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#include <netinet/ip.h>
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#include <netinet/ip6.h>
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#include <netinet/tcp.h>
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#include <netinet/udp.h>
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#include <machine/in_cksum.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <machine/clock.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <sys/proc.h>
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#include <sys/sysctl.h>
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#include <sys/endian.h>
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#include <sys/taskqueue.h>
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#include "ixgbe_api.h"
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/* Tunables */
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/*
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** The number of queues: right now significant performance
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** seems to be gained by using muliple RX queues. The
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** infrastructure for multiple TX is there but its not
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** completely working, dont set greater than 1 for now.
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** OTHER is the vector used for link changes, it also
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** should only be set to 1.
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*/
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#define IXGBE_TX_QUEUES 1
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#define IXGBE_RX_QUEUES 8
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#define IXGBE_OTHER 1
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/*
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* TxDescriptors Valid Range: 64-4096 Default Value: 2048 This value is the
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* number of transmit descriptors allocated by the driver. Increasing this
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* value allows the driver to queue more transmits. Each descriptor is 16
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* bytes.
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*/
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#define DEFAULT_TXD 2048
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#define MAX_TXD 4096
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#define MIN_TXD 64
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/*
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* RxDescriptors Valid Range: 64-4096 Default Value: 2048 This value is the
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* number of receive descriptors allocated by the driver. Increasing this
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* value allows the driver to buffer more incoming packets. Each descriptor
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* is 16 bytes. A receive buffer is also allocated for each descriptor. The
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* maximum MTU size is 16110.
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*
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*/
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#define DEFAULT_RXD 2048
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#define MAX_RXD 4096
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#define MIN_RXD 64
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/*
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* This parameter controls the maximum no of times the driver will loop in
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* the isr. Minimum Value = 1
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*/
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#define MAX_INTR 10
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/*
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* This parameter controls the duration of transmit watchdog timer.
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*/
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#define IXGBE_TX_TIMEOUT 5 /* set to 5 seconds */
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/*
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* This parameters control when the driver calls the routine to reclaim
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* transmit descriptors.
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*/
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#define IXGBE_TX_CLEANUP_THRESHOLD (adapter->num_tx_desc / 8)
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#define IXGBE_TX_OP_THRESHOLD (adapter->num_tx_desc / 32)
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#define IXGBE_MAX_FRAME_SIZE 0x3F00
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#define PERFORMANCE_MTU 9000 /* Best thruput results */
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/*
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** This controls the size mbuf pool used, it
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** may ultimately be automatic, but for now its
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** a compile time option.
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** - use MCLBYTES for legacy size
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*/
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#define IXGBE_RXBUF MJUMPAGESIZE
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/* Defines for printing debug information */
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#define DEBUG_INIT 0
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#define DEBUG_IOCTL 0
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#define DEBUG_HW 0
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#define INIT_DEBUGOUT(S) if (DEBUG_INIT) printf(S "\n")
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#define INIT_DEBUGOUT1(S, A) if (DEBUG_INIT) printf(S "\n", A)
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#define INIT_DEBUGOUT2(S, A, B) if (DEBUG_INIT) printf(S "\n", A, B)
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#define IOCTL_DEBUGOUT(S) if (DEBUG_IOCTL) printf(S "\n")
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#define IOCTL_DEBUGOUT1(S, A) if (DEBUG_IOCTL) printf(S "\n", A)
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#define IOCTL_DEBUGOUT2(S, A, B) if (DEBUG_IOCTL) printf(S "\n", A, B)
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#define HW_DEBUGOUT(S) if (DEBUG_HW) printf(S "\n")
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#define HW_DEBUGOUT1(S, A) if (DEBUG_HW) printf(S "\n", A)
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#define HW_DEBUGOUT2(S, A, B) if (DEBUG_HW) printf(S "\n", A, B)
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#define MAX_NUM_MULTICAST_ADDRESSES 128
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#define IXGBE_MAX_SCATTER 100
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#define IXGBE_MMBA 0x0010
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#define IXGBE_TSO_SIZE 65535
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#define IXGBE_TX_BUFFER_SIZE ((u32) 1514)
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#define IXGBE_RX_HDR_SIZE ((u32) 256)
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#define CSUM_OFFLOAD 7 /* Bits in csum flags */
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/* The number of MSIX messages the 82598 supports */
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#define IXGBE_MSGS 18
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/*
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* Interrupt Moderation parameters
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* for now we hardcode, later
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* it would be nice to do dynamic
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*/
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#define DEFAULT_ITR 8000
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#define LINK_ITR 1950
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/*
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* ******************************************************************************
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* vendor_info_array
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*
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* This array contains the list of Subvendor/Subdevice IDs on which the driver
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* should load.
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*
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*****************************************************************************
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*/
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typedef struct _ixgbe_vendor_info_t {
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unsigned int vendor_id;
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unsigned int device_id;
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unsigned int subvendor_id;
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unsigned int subdevice_id;
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unsigned int index;
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} ixgbe_vendor_info_t;
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struct ixgbe_tx_buf {
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int next_eop;
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struct mbuf *m_head;
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bus_dmamap_t map;
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};
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struct ixgbe_rx_buf {
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struct mbuf *m_head;
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boolean_t bigbuf;
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/* one small and one large map */
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bus_dmamap_t map[2];
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};
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/*
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* Bus dma allocation structure used by ixgbe_dma_malloc and ixgbe_dma_free.
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*/
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struct ixgbe_dma_alloc {
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bus_addr_t dma_paddr;
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caddr_t dma_vaddr;
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bus_dma_tag_t dma_tag;
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bus_dmamap_t dma_map;
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bus_dma_segment_t dma_seg;
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bus_size_t dma_size;
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int dma_nseg;
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};
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/*
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* The transmit ring, one per tx queue
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*/
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struct tx_ring {
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struct adapter *adapter;
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u32 me;
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struct mtx mtx;
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union ixgbe_adv_tx_desc *tx_base;
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struct ixgbe_dma_alloc txdma;
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uint32_t next_avail_tx_desc;
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uint32_t next_tx_to_clean;
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struct ixgbe_tx_buf *tx_buffers;
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volatile uint16_t tx_avail;
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uint32_t txd_cmd;
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bus_dma_tag_t txtag;
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};
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/*
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* The Receive ring, one per rx queue
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*/
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struct rx_ring {
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struct adapter *adapter;
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u32 me;
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struct mtx mtx;
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u32 payload;
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union ixgbe_adv_rx_desc *rx_base;
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struct ixgbe_dma_alloc rxdma;
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unsigned int last_cleaned;
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unsigned int next_to_check;
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struct ixgbe_rx_buf *rx_buffers;
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bus_dma_tag_t rxtag[2];
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bus_dmamap_t spare_map[2];
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struct mbuf *fmp;
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struct mbuf *lmp;
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/* Soft stats */
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u64 packet_count;
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u64 byte_count;
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};
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/* Our adapter structure */
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struct adapter {
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struct ifnet *ifp;
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struct ixgbe_hw hw;
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/* FreeBSD operating-system-specific structures */
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struct ixgbe_osdep osdep;
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struct device *dev;
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struct resource *res_memory;
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struct resource *res_msix;
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/*
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* Interrupt resources:
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* Oplin has 20 MSIX messages
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* so allocate that for now.
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*/
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void *tag[IXGBE_MSGS];
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struct resource *res[IXGBE_MSGS];
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int rid[IXGBE_MSGS];
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struct ifmedia media;
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struct callout timer;
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int watchdog_timer;
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int msix;
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int if_flags;
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struct mtx mtx;
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/* Info about the board itself */
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uint32_t part_num;
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boolean_t link_active;
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uint16_t max_frame_size;
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uint16_t link_duplex;
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uint32_t tx_int_delay;
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uint32_t tx_abs_int_delay;
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uint32_t rx_int_delay;
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uint32_t rx_abs_int_delay;
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/* Indicates the cluster size to use */
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boolean_t bigbufs;
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/*
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* Transmit rings:
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* Allocated at run time, an array of rings.
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*/
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struct tx_ring *tx_rings;
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int num_tx_desc;
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int num_tx_queues;
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/*
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* Receive rings:
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* Allocated at run time, an array of rings.
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*/
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struct rx_ring *rx_rings;
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int num_rx_desc;
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int num_rx_queues;
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uint32_t rx_process_limit;
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/* Misc stats maintained by the driver */
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unsigned long dropped_pkts;
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unsigned long mbuf_alloc_failed;
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unsigned long mbuf_cluster_failed;
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unsigned long no_tx_desc_avail1;
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unsigned long no_tx_desc_avail2;
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unsigned long no_tx_map_avail;
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unsigned long no_tx_dma_setup;
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unsigned long watchdog_events;
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unsigned long tso_tx;
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struct ixgbe_hw_stats stats;
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};
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#define IXGBE_LOCK_INIT(_sc, _name) \
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mtx_init(&(_sc)->mtx, _name, MTX_NETWORK_LOCK, MTX_DEF)
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#define IXGBE_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->mtx)
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#define IXGBE_LOCK(_sc) mtx_lock(&(_sc)->mtx)
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#define IXGBE_UNLOCK(_sc) mtx_unlock(&(_sc)->mtx)
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#define IXGBE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->mtx, MA_OWNED)
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#endif /* _IXGBE_H_ */
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