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/*
* Copyright(c) 2008 - 2009 Atheros Corporation. All rights reserved.
*
* Derived from Intel e1000 driver
* Copyright(c) 1999 - 2005 Intel 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.
*/
#ifndef _ATL1C_H_
#define _ATL1C_H_
#include <linux/version.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/ioport.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <linux/udp.h>
#include <linux/mii.h>
#include <linux/io.h>
#include <linux/vmalloc.h>
#include <linux/pagemap.h>
#include <linux/tcp.h>
#include <linux/ethtool.h>
#include <linux/if_vlan.h>
#include <linux/workqueue.h>
#include <net/checksum.h>
#include <net/ip6_checksum.h>
#include "atl1c_hw.h"
/* Wake Up Filter Control */
#define AT_WUFC_LNKC 0x00000001 /* Link Status Change Wakeup Enable */
#define AT_WUFC_MAG 0x00000002 /* Magic Packet Wakeup Enable */
#define AT_WUFC_EX 0x00000004 /* Directed Exact Wakeup Enable */
#define AT_WUFC_MC 0x00000008 /* Multicast Wakeup Enable */
#define AT_WUFC_BC 0x00000010 /* Broadcast Wakeup Enable */
#define AT_VLAN_TO_TAG(_vlan, _tag) \
_tag = ((((_vlan) >> 8) & 0xFF) |\
(((_vlan) & 0xFF) << 8))
#define AT_TAG_TO_VLAN(_tag, _vlan) \
_vlan = ((((_tag) >> 8) & 0xFF) |\
(((_tag) & 0xFF) << 8))
#define SPEED_0 0xffff
#define HALF_DUPLEX 1
#define FULL_DUPLEX 2
#define AT_RX_BUF_SIZE (ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN)
#define MAX_JUMBO_FRAME_SIZE (6*1024)
#define MAX_TSO_FRAME_SIZE (7*1024)
#define MAX_TX_OFFLOAD_THRESH (9*1024)
#define AT_MAX_RECEIVE_QUEUE 4
#define AT_DEF_RECEIVE_QUEUE 1
#define AT_MAX_TRANSMIT_QUEUE 2
#define AT_DMA_HI_ADDR_MASK 0xffffffff00000000ULL
#define AT_DMA_LO_ADDR_MASK 0x00000000ffffffffULL
#define AT_TX_WATCHDOG (5 * HZ)
#define AT_MAX_INT_WORK 5
#define AT_TWSI_EEPROM_TIMEOUT 100
#define AT_HW_MAX_IDLE_DELAY 10
#define AT_SUSPEND_LINK_TIMEOUT 100
#define AT_ASPM_L0S_TIMER 6
#define AT_ASPM_L1_TIMER 12
#define AT_LCKDET_TIMER 12
#define ATL1C_PCIE_L0S_L1_DISABLE 0x01
#define ATL1C_PCIE_PHY_RESET 0x02
#define ATL1C_ASPM_L0s_ENABLE 0x0001
#define ATL1C_ASPM_L1_ENABLE 0x0002
#define AT_REGS_LEN (75 * sizeof(u32))
#define AT_EEPROM_LEN 512
#define ATL1C_GET_DESC(R, i, type) (&(((type *)((R)->desc))[i]))
#define ATL1C_RFD_DESC(R, i) ATL1C_GET_DESC(R, i, struct atl1c_rx_free_desc)
#define ATL1C_TPD_DESC(R, i) ATL1C_GET_DESC(R, i, struct atl1c_tpd_desc)
#define ATL1C_RRD_DESC(R, i) ATL1C_GET_DESC(R, i, struct atl1c_recv_ret_status)
/* tpd word 1 bit 0:7 General Checksum task offload */
#define TPD_L4HDR_OFFSET_MASK 0x00FF
#define TPD_L4HDR_OFFSET_SHIFT 0
/* tpd word 1 bit 0:7 Large Send task offload (IPv4/IPV6) */
#define TPD_TCPHDR_OFFSET_MASK 0x00FF
#define TPD_TCPHDR_OFFSET_SHIFT 0
/* tpd word 1 bit 0:7 Custom Checksum task offload */
#define TPD_PLOADOFFSET_MASK 0x00FF
#define TPD_PLOADOFFSET_SHIFT 0
/* tpd word 1 bit 8:17 */
#define TPD_CCSUM_EN_MASK 0x0001
#define TPD_CCSUM_EN_SHIFT 8
#define TPD_IP_CSUM_MASK 0x0001
#define TPD_IP_CSUM_SHIFT 9
#define TPD_TCP_CSUM_MASK 0x0001
#define TPD_TCP_CSUM_SHIFT 10
#define TPD_UDP_CSUM_MASK 0x0001
#define TPD_UDP_CSUM_SHIFT 11
#define TPD_LSO_EN_MASK 0x0001 /* TCP Large Send Offload */
#define TPD_LSO_EN_SHIFT 12
#define TPD_LSO_VER_MASK 0x0001
#define TPD_LSO_VER_SHIFT 13 /* 0 : ipv4; 1 : ipv4/ipv6 */
#define TPD_CON_VTAG_MASK 0x0001
#define TPD_CON_VTAG_SHIFT 14
#define TPD_INS_VTAG_MASK 0x0001
#define TPD_INS_VTAG_SHIFT 15
#define TPD_IPV4_PACKET_MASK 0x0001 /* valid when LSO VER is 1 */
#define TPD_IPV4_PACKET_SHIFT 16
#define TPD_ETH_TYPE_MASK 0x0001
#define TPD_ETH_TYPE_SHIFT 17 /* 0 : 802.3 frame; 1 : Ethernet */
/* tpd word 18:25 Custom Checksum task offload */
#define TPD_CCSUM_OFFSET_MASK 0x00FF
#define TPD_CCSUM_OFFSET_SHIFT 18
#define TPD_CCSUM_EPAD_MASK 0x0001
#define TPD_CCSUM_EPAD_SHIFT 30
/* tpd word 18:30 Large Send task offload (IPv4/IPV6) */
#define TPD_MSS_MASK 0x1FFF
#define TPD_MSS_SHIFT 18
#define TPD_EOP_MASK 0x0001
#define TPD_EOP_SHIFT 31
struct atl1c_tpd_desc {
__le16 buffer_len; /* include 4-byte CRC */
__le16 vlan_tag;
__le32 word1;
__le64 buffer_addr;
};
struct atl1c_tpd_ext_desc {
u32 reservd_0;
__le32 word1;
__le32 pkt_len;
u32 reservd_1;
};
/* rrs word 0 bit 0:31 */
#define RRS_RX_CSUM_MASK 0xFFFF
#define RRS_RX_CSUM_SHIFT 0
#define RRS_RX_RFD_CNT_MASK 0x000F
#define RRS_RX_RFD_CNT_SHIFT 16
#define RRS_RX_RFD_INDEX_MASK 0x0FFF
#define RRS_RX_RFD_INDEX_SHIFT 20
/* rrs flag bit 0:16 */
#define RRS_HEAD_LEN_MASK 0x00FF
#define RRS_HEAD_LEN_SHIFT 0
#define RRS_HDS_TYPE_MASK 0x0003
#define RRS_HDS_TYPE_SHIFT 8
#define RRS_CPU_NUM_MASK 0x0003
#define RRS_CPU_NUM_SHIFT 10
#define RRS_HASH_FLG_MASK 0x000F
#define RRS_HASH_FLG_SHIFT 12
#define RRS_HDS_TYPE_HEAD 1
#define RRS_HDS_TYPE_DATA 2
#define RRS_IS_NO_HDS_TYPE(flag) \
((((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK) == 0)
#define RRS_IS_HDS_HEAD(flag) \
((((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK) == \
RRS_HDS_TYPE_HEAD)
#define RRS_IS_HDS_DATA(flag) \
((((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK) == \
RRS_HDS_TYPE_DATA)
/* rrs word 3 bit 0:31 */
#define RRS_PKT_SIZE_MASK 0x3FFF
#define RRS_PKT_SIZE_SHIFT 0
#define RRS_ERR_L4_CSUM_MASK 0x0001
#define RRS_ERR_L4_CSUM_SHIFT 14
#define RRS_ERR_IP_CSUM_MASK 0x0001
#define RRS_ERR_IP_CSUM_SHIFT 15
#define RRS_VLAN_INS_MASK 0x0001
#define RRS_VLAN_INS_SHIFT 16
#define RRS_PROT_ID_MASK 0x0007
#define RRS_PROT_ID_SHIFT 17
#define RRS_RX_ERR_SUM_MASK 0x0001
#define RRS_RX_ERR_SUM_SHIFT 20
#define RRS_RX_ERR_CRC_MASK 0x0001
#define RRS_RX_ERR_CRC_SHIFT 21
#define RRS_RX_ERR_FAE_MASK 0x0001
#define RRS_RX_ERR_FAE_SHIFT 22
#define RRS_RX_ERR_TRUNC_MASK 0x0001
#define RRS_RX_ERR_TRUNC_SHIFT 23
#define RRS_RX_ERR_RUNC_MASK 0x0001
#define RRS_RX_ERR_RUNC_SHIFT 24
#define RRS_RX_ERR_ICMP_MASK 0x0001
#define RRS_RX_ERR_ICMP_SHIFT 25
#define RRS_PACKET_BCAST_MASK 0x0001
#define RRS_PACKET_BCAST_SHIFT 26
#define RRS_PACKET_MCAST_MASK 0x0001
#define RRS_PACKET_MCAST_SHIFT 27
#define RRS_PACKET_TYPE_MASK 0x0001
#define RRS_PACKET_TYPE_SHIFT 28
#define RRS_FIFO_FULL_MASK 0x0001
#define RRS_FIFO_FULL_SHIFT 29
#define RRS_802_3_LEN_ERR_MASK 0x0001
#define RRS_802_3_LEN_ERR_SHIFT 30
#define RRS_RXD_UPDATED_MASK 0x0001
#define RRS_RXD_UPDATED_SHIFT 31
#define RRS_ERR_L4_CSUM 0x00004000
#define RRS_ERR_IP_CSUM 0x00008000
#define RRS_VLAN_INS 0x00010000
#define RRS_RX_ERR_SUM 0x00100000
#define RRS_RX_ERR_CRC 0x00200000
#define RRS_802_3_LEN_ERR 0x40000000
#define RRS_RXD_UPDATED 0x80000000
#define RRS_PACKET_TYPE_802_3 1
#define RRS_PACKET_TYPE_ETH 0
#define RRS_PACKET_IS_ETH(word) \
((((word) >> RRS_PACKET_TYPE_SHIFT) & RRS_PACKET_TYPE_MASK) == \
RRS_PACKET_TYPE_ETH)
#define RRS_RXD_IS_VALID(word) \
((((word) >> RRS_RXD_UPDATED_SHIFT) & RRS_RXD_UPDATED_MASK) == 1)
#define RRS_PACKET_PROT_IS_IPV4_ONLY(word) \
((((word) >> RRS_PROT_ID_SHIFT) & RRS_PROT_ID_MASK) == 1)
#define RRS_PACKET_PROT_IS_IPV6_ONLY(word) \
((((word) >> RRS_PROT_ID_SHIFT) & RRS_PROT_ID_MASK) == 6)
struct atl1c_recv_ret_status {
__le32 word0;
__le32 rss_hash;
__le16 vlan_tag;
__le16 flag;
__le32 word3;
};
/* RFD desciptor */
struct atl1c_rx_free_desc {
__le64 buffer_addr;
};
/* DMA Order Settings */
enum atl1c_dma_order {
atl1c_dma_ord_in = 1,
atl1c_dma_ord_enh = 2,
atl1c_dma_ord_out = 4
};
enum atl1c_dma_rcb {
atl1c_rcb_64 = 0,
atl1c_rcb_128 = 1
};
enum atl1c_mac_speed {
atl1c_mac_speed_0 = 0,
atl1c_mac_speed_10_100 = 1,
atl1c_mac_speed_1000 = 2
};
enum atl1c_dma_req_block {
atl1c_dma_req_128 = 0,
atl1c_dma_req_256 = 1,
atl1c_dma_req_512 = 2,
atl1c_dma_req_1024 = 3,
atl1c_dma_req_2048 = 4,
atl1c_dma_req_4096 = 5
};
enum atl1c_rss_mode {
atl1c_rss_mode_disable = 0,
atl1c_rss_sig_que = 1,
atl1c_rss_mul_que_sig_int = 2,
atl1c_rss_mul_que_mul_int = 4,
};
enum atl1c_rss_type {
atl1c_rss_disable = 0,
atl1c_rss_ipv4 = 1,
atl1c_rss_ipv4_tcp = 2,
atl1c_rss_ipv6 = 4,
atl1c_rss_ipv6_tcp = 8
};
enum atl1c_nic_type {
athr_l1c = 0,
athr_l2c = 1,
athr_l2c_b,
athr_l2c_b2,
athr_l1d,
athr_l1d_2,
};
enum atl1c_trans_queue {
atl1c_trans_normal = 0,
atl1c_trans_high = 1
};
struct atl1c_hw_stats {
/* rx */
unsigned long rx_ok; /* The number of good packet received. */
unsigned long rx_bcast; /* The number of good broadcast packet received. */
unsigned long rx_mcast; /* The number of good multicast packet received. */
unsigned long rx_pause; /* The number of Pause packet received. */
unsigned long rx_ctrl; /* The number of Control packet received other than Pause frame. */
unsigned long rx_fcs_err; /* The number of packets with bad FCS. */
unsigned long rx_len_err; /* The number of packets with mismatch of length field and actual size. */
unsigned long rx_byte_cnt; /* The number of bytes of good packet received. FCS is NOT included. */
unsigned long rx_runt; /* The number of packets received that are less than 64 byte long and with good FCS. */
unsigned long rx_frag; /* The number of packets received that are less than 64 byte long and with bad FCS. */
unsigned long rx_sz_64; /* The number of good and bad packets received that are 64 byte long. */
unsigned long rx_sz_65_127; /* The number of good and bad packets received that are between 65 and 127-byte long. */
unsigned long rx_sz_128_255; /* The number of good and bad packets received that are between 128 and 255-byte long. */
unsigned long rx_sz_256_511; /* The number of good and bad packets received that are between 256 and 511-byte long. */
unsigned long rx_sz_512_1023; /* The number of good and bad packets received that are between 512 and 1023-byte long. */
unsigned long rx_sz_1024_1518; /* The number of good and bad packets received that are between 1024 and 1518-byte long. */
unsigned long rx_sz_1519_max; /* The number of good and bad packets received that are between 1519-byte and MTU. */
unsigned long rx_sz_ov; /* The number of good and bad packets received that are more than MTU size truncated by Selene. */
unsigned long rx_rxf_ov; /* The number of frame dropped due to occurrence of RX FIFO overflow. */
unsigned long rx_rrd_ov; /* The number of frame dropped due to occurrence of RRD overflow. */
unsigned long rx_align_err; /* Alignment Error */
unsigned long rx_bcast_byte_cnt; /* The byte count of broadcast packet received, excluding FCS. */
unsigned long rx_mcast_byte_cnt; /* The byte count of multicast packet received, excluding FCS. */
unsigned long rx_err_addr; /* The number of packets dropped due to address filtering. */
/* tx */
unsigned long tx_ok; /* The number of good packet transmitted. */
unsigned long tx_bcast; /* The number of good broadcast packet transmitted. */
unsigned long tx_mcast; /* The number of good multicast packet transmitted. */
unsigned long tx_pause; /* The number of Pause packet transmitted. */
unsigned long tx_exc_defer; /* The number of packets transmitted with excessive deferral. */
unsigned long tx_ctrl; /* The number of packets transmitted is a control frame, excluding Pause frame. */
unsigned long tx_defer; /* The number of packets transmitted that is deferred. */
unsigned long tx_byte_cnt; /* The number of bytes of data transmitted. FCS is NOT included. */
unsigned long tx_sz_64; /* The number of good and bad packets transmitted that are 64 byte long. */
unsigned long tx_sz_65_127; /* The number of good and bad packets transmitted that are between 65 and 127-byte long. */
unsigned long tx_sz_128_255; /* The number of good and bad packets transmitted that are between 128 and 255-byte long. */
unsigned long tx_sz_256_511;
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