/*
* Copyright(c) 2007 Atheros Corporation. All rights reserved.
* Copyright(c) 2007 xiong huang <xiong.huang@atheros.com>
*
* 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 _ATL1E_H_
#define _ATL1E_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 "atl1e_hw.h"
#define PCI_REG_COMMAND 0x04 /* PCI Command Register */
#define CMD_IO_SPACE 0x0001
#define CMD_MEMORY_SPACE 0x0002
#define CMD_BUS_MASTER 0x0004
#define BAR_0 0
#define BAR_1 1
#define BAR_5 5
/* 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 SPEED_0 0xffff
#define HALF_DUPLEX 1
#define FULL_DUPLEX 2
/* Error Codes */
#define AT_ERR_EEPROM 1
#define AT_ERR_PHY 2
#define AT_ERR_CONFIG 3
#define AT_ERR_PARAM 4
#define AT_ERR_MAC_TYPE 5
#define AT_ERR_PHY_TYPE 6
#define AT_ERR_PHY_SPEED 7
#define AT_ERR_PHY_RES 8
#define AT_ERR_TIMEOUT 9
#define MAX_JUMBO_FRAME_SIZE 0x2000
#define AT_VLAN_TAG_TO_TPD_TAG(_vlan, _tpd) \
_tpd = (((_vlan) << (4)) | (((_vlan) >> 13) & 7) |\
(((_vlan) >> 9) & 8))
#define AT_TPD_TAG_TO_VLAN_TAG(_tpd, _vlan) \
_vlan = (((_tpd) >> 8) | (((_tpd) & 0x77) << 9) |\
(((_tdp) & 0x88) << 5))
#define AT_MAX_RECEIVE_QUEUE 4
#define AT_PAGE_NUM_PER_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 10
#define AT_TWSI_EEPROM_TIMEOUT 100
#define AT_HW_MAX_IDLE_DELAY 10
#define AT_SUSPEND_LINK_TIMEOUT 28
#define AT_REGS_LEN 75
#define AT_EEPROM_LEN 512
#define AT_ADV_MASK (ADVERTISE_10_HALF |\
ADVERTISE_10_FULL |\
ADVERTISE_100_HALF |\
ADVERTISE_100_FULL |\
ADVERTISE_1000_FULL)
/* tpd word 2 */
#define TPD_BUFLEN_MASK 0x3FFF
#define TPD_BUFLEN_SHIFT 0
#define TPD_DMAINT_MASK 0x0001
#define TPD_DMAINT_SHIFT 14
#define TPD_PKTNT_MASK 0x0001
#define TPD_PKTINT_SHIFT 15
#define TPD_VLANTAG_MASK 0xFFFF
#define TPD_VLAN_SHIFT 16
/* tpd word 3 bits 0:4 */
#define TPD_EOP_MASK 0x0001
#define TPD_EOP_SHIFT 0
#define TPD_IP_VERSION_MASK 0x0001
#define TPD_IP_VERSION_SHIFT 1 /* 0 : IPV4, 1 : IPV6 */
#define TPD_INS_VL_TAG_MASK 0x0001
#define TPD_INS_VL_TAG_SHIFT 2
#define TPD_CC_SEGMENT_EN_MASK 0x0001
#define TPD_CC_SEGMENT_EN_SHIFT 3
#define TPD_SEGMENT_EN_MASK 0x0001
#define TPD_SEGMENT_EN_SHIFT 4
/* tdp word 3 bits 5:7 if ip version is 0 */
#define TPD_IP_CSUM_MASK 0x0001
#define TPD_IP_CSUM_SHIFT 5
#define TPD_TCP_CSUM_MASK 0x0001
#define TPD_TCP_CSUM_SHIFT 6
#define TPD_UDP_CSUM_MASK 0x0001
#define TPD_UDP_CSUM_SHIFT 7
/* tdp word 3 bits 5:7 if ip version is 1 */
#define TPD_V6_IPHLLO_MASK 0x0007
#define TPD_V6_IPHLLO_SHIFT 7
/* tpd word 3 bits 8:9 bit */
#define TPD_VL_TAGGED_MASK 0x0001
#define TPD_VL_TAGGED_SHIFT 8
#define TPD_ETHTYPE_MASK 0x0001
#define TPD_ETHTYPE_SHIFT 9
/* tdp word 3 bits 10:13 if ip version is 0 */
#define TDP_V4_IPHL_MASK 0x000F
#define TPD_V4_IPHL_SHIFT 10
/* tdp word 3 bits 10:13 if ip version is 1 */
#define TPD_V6_IPHLHI_MASK 0x000F
#define TPD_V6_IPHLHI_SHIFT 10
/* tpd word 3 bit 14:31 if segment enabled */
#define TPD_TCPHDRLEN_MASK 0x000F
#define TPD_TCPHDRLEN_SHIFT 14
#define TPD_HDRFLAG_MASK 0x0001
#define TPD_HDRFLAG_SHIFT 18
#define TPD_MSS_MASK 0x1FFF
#define TPD_MSS_SHIFT 19
/* tdp word 3 bit 16:31 if custom csum enabled */
#define TPD_PLOADOFFSET_MASK 0x00FF
#define TPD_PLOADOFFSET_SHIFT 16
#define TPD_CCSUMOFFSET_MASK 0x00FF
#define TPD_CCSUMOFFSET_SHIFT 24
struct atl1e_tpd_desc {
__le64 buffer_addr;
__le32 word2;
__le32 word3;
};
/* how about 0x2000 */
#define MAX_TX_BUF_LEN 0x2000
#define MAX_TX_BUF_SHIFT 13
/*#define MAX_TX_BUF_LEN 0x3000 */
/* rrs word 1 bit 0:31 */
#define RRS_RX_CSUM_MASK 0xFFFF
#define RRS_RX_CSUM_SHIFT 0
#define RRS_PKT_SIZE_MASK 0x3FFF
#define RRS_PKT_SIZE_SHIFT 16
#define RRS_CPU_NUM_MASK 0x0003
#define RRS_CPU_NUM_SHIFT 30
#define RRS_IS_RSS_IPV4 0x0001
#define RRS_IS_RSS_IPV4_TCP 0x0002
#define RRS_IS_RSS_IPV6 0x0004
#define RRS_IS_RSS_IPV6_TCP 0x0008
#define RRS_IS_IPV6 0x0010
#define RRS_IS_IP_FRAG 0x0020
#define RRS_IS_IP_DF 0x0040
#define RRS_IS_802_3 0x0080
#define RRS_IS_VLAN_TAG 0x0100
#define RRS_IS_ERR_FRAME 0x0200
#define RRS_IS_IPV4 0x0400
#define RRS_IS_UDP 0x0800
#define RRS_IS_TCP 0x1000
#define RRS_IS_BCAST 0x2000
#define RRS_IS_MCAST 0x4000
#define RRS_IS_PAUSE 0x8000
#define RRS_ERR_BAD_CRC 0x0001
#define RRS_ERR_CODE 0x0002
#define RRS_ERR_DRIBBLE 0x0004
#define RRS_ERR_RUNT 0x0008
#define RRS_ERR_RX_OVERFLOW 0x0010
#define RRS_ERR_TRUNC 0x0020
#define RRS_ERR_IP_CSUM 0x0040
#define RRS_ERR_L4_CSUM 0x0080
#define RRS_ERR_LENGTH 0x0100
#define RRS_ERR_DES_ADDR 0x0200
struct atl1e_recv_ret_status {
u16 seq_num;
u16 hash_lo;
__le32 word1;
u16 pkt_flag;
u16 err_flag;
u16 hash_hi;
u16 vtag;
};
enum atl1e_dma_req_block {
atl1e_dma_req_128 = 0,
atl1e_dma_req_256 = 1,
atl1e_dma_req_512 = 2,
atl1e_dma_req_1024 = 3,
atl1e_dma_req_2048 = 4,
atl1e_dma_req_4096 = 5
};
enum atl1e_rrs_type {
atl1e_rrs_disable = 0,
atl1e_rrs_ipv4 = 1,
atl1e_rrs_ipv4_tcp = 2,
atl1e_rrs_ipv6 = 4,
atl1e_rrs_ipv6_tcp = 8
};
enum atl1e_nic_type {
athr_l1e = 0,
athr_l2e_revA = 1,
athr_l2e_revB = 2
};
struct atl1e_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; /* The number of good and bad packets transmitted that are between 256 and 511-byte long. */
unsigned long tx_sz_512_1023; /* The number of good and bad packets transmitted that are between 512 and 1023-byte long. */
unsigned long tx_sz_1024_1518; /* The number of good and bad packets transmitted that are between 1024 and 1518-byte long. */
unsigned long tx_sz_1519_max; /* The number of good and bad packets transmitted that are between 1519-byte and MTU. */
unsigned long tx_1_col; /* The number of packets subsequently transmitted successfully with a single prior collision. */
unsigned long tx_2_col; /* The number of packets subsequently transmitted successfully with multiple prior collisions. */
unsigned long tx_late_col; /* The number of packets transmitted with late collisions. */
unsigned long tx_abort_col; /* The number of transmit packets aborted due to excessive collisions. */
unsigned long tx_underrun; /* The number of transmit packets aborted due to transmit FIFO underrun, or TRD FIFO underrun */
unsigned long tx_rd_eop; /* The number of times that read beyond the EOP into the next frame area when TRD was not written timely */
unsigned long tx_len_err; /* The number of transmit packets with length field does NOT match the actual frame size. */
unsigned long tx_trunc; /* The number of transmit packets truncated due to size exceeding MTU. */
unsigned long tx_bcast_byte; /* The byte count of broadcast packet transmitted, excluding FCS. */
unsigned long tx_mcast_byte; /* The byte count of multicast packet transmitted, excluding FCS. */
};
struct atl1e_hw {
u8 __iomem *hw_addr; /* inner register address */
resource_size_t mem_rang;
struct atl1e_adapter *adapter;
enum atl1e_nic_type nic_type;
u16 device_id;
u16 vendor_id;
u16 subsystem_id;
u16 subsystem_vendor_id;
u8 revision_id;
u16 pci_cmd_word;
u8 mac_addr[ETH_ALEN];
u8 perm_mac_addr[ETH_ALEN];
u8 preamble_len;
u16 max_frame_size;
u16 rx_jumbo_th;
u16 tx_jumbo_th;
u16 media_type;
#define MEDIA_TYPE_AUTO_SENSOR 0
#define MEDIA_TYPE_100M_FULL 1
#define MEDIA_TYPE_100M_HALF 2
#define MEDIA_TYPE_10M_FULL 3
#define MEDIA_TYPE_10M_HALF 4
u16 autoneg_advertised;
#define ADVERTISE_10_HALF 0x0001
#define ADVERTISE_10_FULL 0x0002
#define ADVERTISE_100_HALF 0x0004
#define ADVERTISE_100_FULL 0x0008
#define ADVERTISE_1000_HALF 0x0010 /* Not used, just FYI */
#define ADVERTISE_1000_FULL 0x0020
u16 mii_autoneg_adv_reg;
u16 mii_1000t_ctrl_reg;
u16 imt; /* Interrupt Moderator timer ( 2us resolution) */
u16 ict; /* Interrupt Clear timer (2us resolution) */
u32 smb_timer;
u16 rrd_thresh; /* Threshold of number of RRD produced to trigger
interrupt request */
u16 tpd_thresh;
u16 rx_count_down; /* 2us resolution */
u16 tx_count_down;
u8 tpd_burst; /* Number of TPD to prefetch in cache-aligned burst. */
enum atl1e_rrs_type rrs_type;
u32 base_cpu;
u32 indirect_tab;
enum atl1e_dma_req_block dmar_block;
enum atl1e_dma_req_block dmaw_block;
u8 dmaw_dly_cnt;
u8 dmar_dly_cnt;
bool phy_configured;
bool re_autoneg;
bool emi_ca;
};
/*
* wrapper around a pointer to a socket buffer,
* so a DMA handle can be stored along with the buffer
*/
struct atl1e_tx_buffer {
struct sk_buff *skb;
u16 flags;
#define ATL1E_TX_PCIMAP_SINGLE 0x0001
#define ATL1E_TX_PCIMAP_PAGE 0x0002
#define ATL1E_TX_PCIMAP_TYPE_MASK 0x0003
u16 length;
dma_addr_t dma;
};
#define ATL1E_SET_PCIMAP_TYPE(tx_buff, type) do { \
((tx_buff)->flags) &= ~ATL1E_TX_PCIMAP_TYPE_MASK; \
((tx_buff)->flags) |= (type); \
} while (0)
struct atl1e_rx_page {
dma_addr_t dma; /* receive rage DMA address */
u8 *addr; /* receive rage virtual address */
dma_addr_t write_offset_dma; /* the DMA address which contain the
receive data offset in the page */
u32 *write_offset_addr; /* the virtaul address which contain
the receive data offset in the page */
u32 read_offset; /* the offset where we have read */
};
struct atl1e_rx_page_desc {
struct atl1e_rx_page rx_page[AT_PAGE_NUM_PER_QUEUE];
u8 rx_using;
u16 rx_nxseq;
};
/* transmit packet descriptor (tpd) ring */
struct atl1e_tx_ring {
struct atl1e_tpd_desc *desc; /* descriptor ring virtual address */
dma_addr_t dma; /* descriptor ring physical address */
u16 count; /* the count of transmit rings */
rwlock_t tx_lock;
u16 next_to_use;
atomic_t next_to_clean;
struct atl1e_tx_buffer *tx_buffer;
dma_addr_t cmb_dma;
u32 *cmb;
};
/* receive packet descriptor ring */
struct atl1e_rx_ring {
void *desc;
dma_addr_t dma;
int size;
u32 page_size; /* bytes length of rxf page */
u32 real_page_size; /* real_page_size = page_size + jumbo + aliagn */
struct atl1e_rx_page_desc rx_page_desc[AT_MAX_RECEIVE_QUEUE];
};
/* board specific private data structure */
struct atl1e_adapter {
struct net_device *netdev;
struct pci_dev *pdev;
struct vlan_group *vlgrp;
struct napi_struct napi;
struct mii_if_info mii; /* MII interface info */
struct atl1e_hw hw;
struct atl1e_hw_stats hw_stats;
bool have_msi;
u32 wol;
u16 link_speed;
u16 link_duplex;
spinlock_t mdio_lock;
spinlock_t tx_lock;
atomic_t irq_sem;
struct work_struct reset_task;
struct work_struct link_chg_task;
struct timer_list watchdog_timer;
struct timer_list phy_config_timer;
/* All Descriptor memory */
dma_addr_t ring_dma;
void *ring_vir_addr;
u32 ring_size;
struct atl1e_tx_ring tx_ring;
struct atl1e_rx_ring rx_ring;
int num_rx_queues;
unsigned long flags;
#define __AT_TESTING 0x0001
#define __AT_RESETTING 0x0002
#define __AT_DOWN 0x0003
u32 bd_number; /* board number;*/
u32 pci_state[16];
u32 *config_space;
};
#define AT_WRITE_REG(a, reg, value) ( \
writel((value), ((a)->hw_addr + reg)))
#define AT_WRITE_FLUSH(a) (\
readl((a)->hw_addr))
#define AT_READ_REG(a, reg) ( \
readl((a)->hw_addr + reg))
#define AT_WRITE_REGB(a, reg, value) (\
writeb((value), ((a)->hw_addr + reg)))
#define AT_READ_REGB(a, reg) (\
readb((a)->hw_addr + reg))
#define AT_WRITE_REGW(a, reg, value) (\
writew((value), ((a)->hw_addr + reg)))
#define AT_READ_REGW(a, reg) (\
readw((a)->hw_addr + reg))
#define AT_WRITE_REG_ARRAY(a, reg, offset, value) ( \
writel((value), (((a)->hw_addr + reg) + ((offset) << 2))))
#define AT_READ_REG_ARRAY(a, reg, offset) ( \
readl(((a)->hw_addr + reg) + ((offset) << 2)))
extern char atl1e_driver_name[];
extern char atl1e_driver_version[];
extern void atl1e_check_options(struct atl1e_adapter *adapter);
extern int atl1e_up(struct atl1e_adapter *adapter);
extern void atl1e_down(struct atl1e_adapter *adapter);
extern void atl1e_reinit_locked(struct atl1e_adapter *adapter);
extern s32 atl1e_reset_hw(struct atl1e_hw *hw);
extern void atl1e_set_ethtool_ops(struct net_device *netdev);
#endif /* _ATL1_E_H_ */
