path: root/drivers/net/qlcnic/qlcnic.h

/*
 * Copyright (C) 2009 - QLogic Corporation.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA  02111-1307, USA.
 *
 * The full GNU General Public License is included in this distribution
 * in the file called "COPYING".
 *
 */

#ifndef _QLCNIC_H_
#define _QLCNIC_H_

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ip.h>
#include <linux/in.h>
#include <linux/tcp.h>
#include <linux/skbuff.h>
#include <linux/firmware.h>

#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/timer.h>

#include <linux/vmalloc.h>

#include <linux/io.h>
#include <asm/byteorder.h>

#include "qlcnic_hdr.h"

#define _QLCNIC_LINUX_MAJOR 5
#define _QLCNIC_LINUX_MINOR 0
#define _QLCNIC_LINUX_SUBVERSION 7
#define QLCNIC_LINUX_VERSIONID  "5.0.7"
#define QLCNIC_DRV_IDC_VER  0x01

#define QLCNIC_VERSION_CODE(a, b, c)	(((a) << 24) + ((b) << 16) + (c))
#define _major(v)	(((v) >> 24) & 0xff)
#define _minor(v)	(((v) >> 16) & 0xff)
#define _build(v)	((v) & 0xffff)

/* version in image has weird encoding:
 *  7:0  - major
 * 15:8  - minor
 * 31:16 - build (little endian)
 */
#define QLCNIC_DECODE_VERSION(v) \
	QLCNIC_VERSION_CODE(((v) & 0xff), (((v) >> 8) & 0xff), ((v) >> 16))

#define QLCNIC_MIN_FW_VERSION     QLCNIC_VERSION_CODE(4, 4, 2)
#define QLCNIC_NUM_FLASH_SECTORS (64)
#define QLCNIC_FLASH_SECTOR_SIZE (64 * 1024)
#define QLCNIC_FLASH_TOTAL_SIZE  (QLCNIC_NUM_FLASH_SECTORS \
					* QLCNIC_FLASH_SECTOR_SIZE)

#define RCV_DESC_RINGSIZE(rds_ring)	\
	(sizeof(struct rcv_desc) * (rds_ring)->num_desc)
#define RCV_BUFF_RINGSIZE(rds_ring)	\
	(sizeof(struct qlcnic_rx_buffer) * rds_ring->num_desc)
#define STATUS_DESC_RINGSIZE(sds_ring)	\
	(sizeof(struct status_desc) * (sds_ring)->num_desc)
#define TX_BUFF_RINGSIZE(tx_ring)	\
	(sizeof(struct qlcnic_cmd_buffer) * tx_ring->num_desc)
#define TX_DESC_RINGSIZE(tx_ring)	\
	(sizeof(struct cmd_desc_type0) * tx_ring->num_desc)

#define QLCNIC_P3P_A0		0x50

#define QLCNIC_IS_REVISION_P3P(REVISION)     (REVISION >= QLCNIC_P3P_A0)

#define FIRST_PAGE_GROUP_START	0
#define FIRST_PAGE_GROUP_END	0x100000

#define P3_MAX_MTU                     (9600)
#define QLCNIC_MAX_ETHERHDR                32 /* This contains some padding */

#define QLCNIC_P3_RX_BUF_MAX_LEN         (QLCNIC_MAX_ETHERHDR + ETH_DATA_LEN)
#define QLCNIC_P3_RX_JUMBO_BUF_MAX_LEN   (QLCNIC_MAX_ETHERHDR + P3_MAX_MTU)
#define QLCNIC_CT_DEFAULT_RX_BUF_LEN	2048
#define QLCNIC_LRO_BUFFER_EXTRA		2048

/* Opcodes to be used with the commands */
#define TX_ETHER_PKT	0x01
#define TX_TCP_PKT	0x02
#define TX_UDP_PKT	0x03
#define TX_IP_PKT	0x04
#define TX_TCP_LSO	0x05
#define TX_TCP_LSO6	0x06
#define TX_IPSEC	0x07
#define TX_IPSEC_CMD	0x0a
#define TX_TCPV6_PKT	0x0b
#define TX_UDPV6_PKT	0x0c

/* Tx defines */
#define MAX_TSO_HEADER_DESC	2
#define MGMT_CMD_DESC_RESV	4
#define TX_STOP_THRESH		((MAX_SKB_FRAGS >> 2) + MAX_TSO_HEADER_DESC \
							+ MGMT_CMD_DESC_RESV)
#define QLCNIC_MAX_TX_TIMEOUTS	2

/*
 * Following are the states of the Phantom. Phantom will set them and
 * Host will read to check if the fields are correct.
 */
#define PHAN_INITIALIZE_FAILED		0xffff
#define PHAN_INITIALIZE_COMPLETE	0xff01

/* Host writes the following to notify that it has done the init-handshake */
#define PHAN_INITIALIZE_ACK		0xf00f
#define PHAN_PEG_RCV_INITIALIZED	0xff01

#define NUM_RCV_DESC_RINGS	3
#define NUM_STS_DESC_RINGS	4

#define RCV_RING_NORMAL 0
#define RCV_RING_JUMBO	1

#define MIN_CMD_DESCRIPTORS		64
#define MIN_RCV_DESCRIPTORS		64
#define MIN_JUMBO_DESCRIPTORS		32

#define MAX_CMD_DESCRIPTORS		1024
#define MAX_RCV_DESCRIPTORS_1G		4096
#define MAX_RCV_DESCRIPTORS_10G 	8192
#define MAX_JUMBO_RCV_DESCRIPTORS_1G	512
#define MAX_JUMBO_RCV_DESCRIPTORS_10G	1024

#define DEFAULT_RCV_DESCRIPTORS_1G	2048
#define DEFAULT_RCV_DESCRIPTORS_10G	4096

#define get_next_index(index, length)	\
	(((index) + 1) & ((length) - 1))

/*
 * Following data structures describe the descriptors that will be used.
 * Added fileds of tcpHdrSize and ipHdrSize, The driver needs to do it only when
 * we are doing LSO (above the 1500 size packet) only.
 */

#define FLAGS_VLAN_TAGGED	0x10
#define FLAGS_VLAN_OOB		0x40

#define qlcnic_set_tx_vlan_tci(cmd_desc, v)	\
	(cmd_desc)->vlan_TCI = cpu_to_le16(v);
#define qlcnic_set_cmd_desc_port(cmd_desc, var)	\
	((cmd_desc)->port_ctxid |= ((var) & 0x0F))
#define qlcnic_set_cmd_desc_ctxid(cmd_desc, var)	\
	((cmd_desc)->port_ctxid |= ((var) << 4 & 0xF0))

#define qlcnic_set_tx_port(_desc, _port) \
	((_desc)->port_ctxid = ((_port) & 0xf) | (((_port) << 4) & 0xf0))

#define qlcnic_set_tx_flags_opcode(_desc, _flags, _opcode) \
	((_desc)->flags_opcode = \
	cpu_to_le16(((_flags) & 0x7f) | (((_opcode) & 0x3f) << 7)))

#define qlcnic_set_tx_frags_len(_desc, _frags, _len) \
	((_desc)->nfrags__length = \
	cpu_to_le32(((_frags) & 0xff) | (((_len) & 0xffffff) << 8)))

struct cmd_desc_type0 {
	u8 tcp_hdr_offset;	/* For LSO only */
	u8 ip_hdr_offset;	/* For LSO only */
	__le16 flags_opcode;	/* 15:13 unused, 12:7 opcode, 6:0 flags */
	__le32 nfrags__length;	/* 31:8 total len, 7:0 frag count */

	__le64