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freebsd-dev/sys/dev/em/if_em.h
Prafulla Deuskar 587edcdc95 Corrected license in the source files. It should say "MUST" instead of "MAY". 
MFC after:	2 days
2002-09-24 16:27:59 +00:00

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/**************************************************************************
Copyright (c) 2001-2002, 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 _EM_H_DEFINED_
#define _EM_H_DEFINED_
#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/sockio.h>
#include <net/if.h>
#include <net/if_arp.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/ip.h>
#include <netinet/tcp.h>
#include <netinet/udp.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 <pci/pcivar.h>
#include <pci/pcireg.h>
#include "opt_bdg.h"
#include <dev/em/if_em_hw.h>
/* Tunables */
#define MAX_TXD 256
#define MAX_RXD 256
#define TX_CLEANUP_THRESHOLD MAX_TXD / 8
#define TIDV 128
#define RIDV 28
#define DO_AUTO_NEG 1
#define WAIT_FOR_AUTO_NEG_DEFAULT 1
#define AUTONEG_ADV_DEFAULT (ADVERTISE_10_HALF | ADVERTISE_10_FULL | \
ADVERTISE_100_HALF | ADVERTISE_100_FULL | \
ADVERTISE_1000_FULL)
#define EM_REPORT_TX_EARLY 2
#define EM_CHECKSUM_FEATURES (CSUM_TCP | CSUM_UDP)
#define EM_MAX_INTR 3
#define EM_TX_TIMEOUT 5 /* set to 5 seconds */
#define EM_VENDOR_ID 0x8086
#define EM_MMBA 0x0010 /* Mem base address */
#define EM_ROUNDUP(size, unit) (((size) + (unit) - 1) & ~((unit) - 1))
#define EM_JUMBO_PBA 0x00000028
#define EM_DEFAULT_PBA 0x00000030
#define IOCTL_CMD_TYPE u_long
#define MAX_NUM_MULTICAST_ADDRESSES 128
#define PCI_ANY_ID (~0U)
#define ETHER_ALIGN 2
#define QTAG_TYPE 0x8100
/* 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)
/* Supported RX Buffer Sizes */
#define EM_RXBUFFER_2048 2048
#define EM_RXBUFFER_4096 4096
#define EM_RXBUFFER_8192 8192
#define EM_RXBUFFER_16384 16384
#ifdef __alpha__
#undef vtophys
#define vtophys(va) alpha_XXX_dmamap((vm_offset_t)(va))
#endif /* __alpha__ */
/* ******************************************************************************
* vendor_info_array
*
* This array contains the list of Subvendor/Subdevice IDs on which the driver
* should load.
*
* ******************************************************************************/
typedef struct _em_vendor_info_t
{
unsigned int vendor_id;
unsigned int device_id;
unsigned int subvendor_id;
unsigned int subdevice_id;
unsigned int index;
} em_vendor_info_t;
struct em_tx_buffer {
STAILQ_ENTRY(em_tx_buffer) em_tx_entry;
struct mbuf *m_head;
u_int32_t num_tx_desc_used;
};
/* ******************************************************************************
* This structure stores information about the 2k aligned receive buffer
* into which the E1000 DMA's frames.
* ******************************************************************************/
struct em_rx_buffer {
STAILQ_ENTRY(em_rx_buffer) em_rx_entry;
struct mbuf *m_head;
u_int64_t buffer_addr;
};
typedef enum _XSUM_CONTEXT_T {
OFFLOAD_NONE,
OFFLOAD_TCP_IP,
OFFLOAD_UDP_IP
} XSUM_CONTEXT_T;
/* Our adapter structure */
struct adapter {
struct arpcom interface_data;
struct adapter *next;
struct adapter *prev;
struct em_hw hw;
/* FreeBSD operating-system-specific structures */
struct em_osdep osdep;
struct device *dev;
struct resource *res_memory;
struct resource *res_ioport;
struct resource *res_interrupt;
void *int_handler_tag;
struct ifmedia media;
struct callout_handle timer_handle;
int io_rid;
u_int8_t unit;
/* Info about the board itself */
u_int32_t part_num;
u_int8_t link_active;
u_int16_t link_speed;
u_int16_t link_duplex;
u_int32_t tx_int_delay;
u_int32_t rx_int_delay;
XSUM_CONTEXT_T active_checksum_context;
/* Transmit definitions */
struct em_tx_desc *first_tx_desc;
struct em_tx_desc *last_tx_desc;
struct em_tx_desc *next_avail_tx_desc;
struct em_tx_desc *oldest_used_tx_desc;
struct em_tx_desc *tx_desc_base;
volatile u_int16_t num_tx_desc_avail;
u_int16_t num_tx_desc;
u_int32_t txd_cmd;
struct em_tx_buffer *tx_buffer_area;
STAILQ_HEAD(__em_tx_buffer_free, em_tx_buffer) free_tx_buffer_list;
STAILQ_HEAD(__em_tx_buffer_used, em_tx_buffer) used_tx_buffer_list;
/* Receive definitions */
struct em_rx_desc *first_rx_desc;
struct em_rx_desc *last_rx_desc;
struct em_rx_desc *next_rx_desc_to_check;
struct em_rx_desc *rx_desc_base;
u_int16_t num_rx_desc;
u_int32_t rx_buffer_len;
struct em_rx_buffer *rx_buffer_area;
STAILQ_HEAD(__em_rx_buffer, em_rx_buffer) rx_buffer_list;
/* Jumbo frame */
struct mbuf *fmp;
struct mbuf *lmp;
/* Misc stats maintained by the driver */
unsigned long dropped_pkts;
unsigned long mbuf_alloc_failed;
unsigned long mbuf_cluster_failed;
unsigned long xmit_pullup;
unsigned long no_tx_desc_avail;
unsigned long no_tx_buffer_avail1;
unsigned long no_tx_buffer_avail2;
#ifdef DBG_STATS
unsigned long no_pkts_avail;
unsigned long clean_tx_interrupts;
#endif
struct em_hw_stats stats;
};
#endif /* _EM_H_DEFINED_ */
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