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Commit f3cc28c7 authored by Jay Cliburn's avatar Jay Cliburn Committed by Jeff Garzik
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Add Attansic L1 ethernet driver. 

This driver is a modified version of the Attansic reference driver
for the L1 ethernet adapter.  Attansic has granted permission for
its inclusion in the mainline kernel.
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent c4184f11
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drivers/net/Kconfig
View file @ f3cc28c7
......@@ -2335,6 +2335,17 @@ config QLA3XXX
To compile this driver as a module, choose M here: the module
will be called qla3xxx.
config ATL1
tristate "Attansic L1 Gigabit Ethernet support (EXPERIMENTAL)"
depends on NET_PCI && PCI && EXPERIMENTAL
select CRC32
select MII
help
This driver supports the Attansic L1 gigabit ethernet adapter.
To compile this driver as a module, choose M here. The module
will be called atl1.
endmenu
#
......
drivers/net/Makefile
View file @ f3cc28c7
......@@ -9,6 +9,7 @@ obj-$(CONFIG_CHELSIO_T1) += chelsio/
obj-$(CONFIG_CHELSIO_T3) += cxgb3/
obj-$(CONFIG_EHEA) += ehea/
obj-$(CONFIG_BONDING) += bonding/
obj-$(CONFIG_ATL1) += atl1/
obj-$(CONFIG_GIANFAR) += gianfar_driver.o
gianfar_driver-objs := gianfar.o \
......
drivers/net/atl1/Makefile 0 → 100644
View file @ f3cc28c7
obj-$(CONFIG_ATL1) += atl1.o
atl1-y += atl1_main.o atl1_hw.o atl1_ethtool.o atl1_param.o
drivers/net/atl1/atl1.h 0 → 100644
View file @ f3cc28c7
/*
* Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
* Copyright(c) 2006 Chris Snook <csnook@redhat.com>
* Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.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 _ATL1_H_
#define _ATL1_H_
#include <linux/types.h>
#include <linux/if_vlan.h>
#include "atl1_hw.h"
/* function prototypes needed by multiple files */
s32 atl1_up(struct atl1_adapter *adapter);
void atl1_down(struct atl1_adapter *adapter);
int atl1_reset(struct atl1_adapter *adapter);
s32 atl1_setup_ring_resources(struct atl1_adapter *adapter);
void atl1_free_ring_resources(struct atl1_adapter *adapter);
extern char atl1_driver_name[];
extern char atl1_driver_version[];
extern const struct ethtool_ops atl1_ethtool_ops;
struct atl1_adapter;
#define ATL1_MAX_INTR 3
#define ATL1_DEFAULT_TPD 256
#define ATL1_MAX_TPD 1024
#define ATL1_MIN_TPD 64
#define ATL1_DEFAULT_RFD 512
#define ATL1_MIN_RFD 128
#define ATL1_MAX_RFD 2048
#define ATL1_GET_DESC(R, i, type) (&(((type *)((R)->desc))[i]))
#define ATL1_RFD_DESC(R, i) ATL1_GET_DESC(R, i, struct rx_free_desc)
#define ATL1_TPD_DESC(R, i) ATL1_GET_DESC(R, i, struct tx_packet_desc)
#define ATL1_RRD_DESC(R, i) ATL1_GET_DESC(R, i, struct rx_return_desc)
/*
* Some workarounds require millisecond delays and are run during interrupt
* context. Most notably, when establishing link, the phy may need tweaking
* but cannot process phy register reads/writes faster than millisecond
* intervals...and we establish link due to a "link status change" interrupt.
*/
/*
* wrapper around a pointer to a socket buffer,
* so a DMA handle can be stored along with the buffer
*/
struct atl1_buffer {
struct sk_buff *skb;
u16 length;
u16 alloced;
dma_addr_t dma;
};
#define MAX_TX_BUF_LEN 0x3000 /* 12KB */
struct atl1_tpd_ring {
void *desc; /* pointer to the descriptor ring memory */
dma_addr_t dma; /* physical adress of the descriptor ring */
u16 size; /* length of descriptor ring in bytes */
u16 count; /* number of descriptors in the ring */
u16 hw_idx; /* hardware index */
atomic_t next_to_clean;
atomic_t next_to_use;
struct atl1_buffer *buffer_info;
};
struct atl1_rfd_ring {
void *desc;
dma_addr_t dma;
u16 size;
u16 count;
atomic_t next_to_use;
u16 next_to_clean;
struct atl1_buffer *buffer_info;
};
struct atl1_rrd_ring {
void *desc;
dma_addr_t dma;
unsigned int size;
u16 count;
u16 next_to_use;
atomic_t next_to_clean;
};
struct atl1_ring_header {
void *desc; /* pointer to the descriptor ring memory */
dma_addr_t dma; /* physical adress of the descriptor ring */
unsigned int size; /* length of descriptor ring in bytes */
};
struct atl1_cmb {
struct coals_msg_block *cmb;
dma_addr_t dma;
};
struct atl1_smb {
struct stats_msg_block *smb;
dma_addr_t dma;
};
/* Statistics counters */
struct atl1_sft_stats {
u64 rx_packets;
u64 tx_packets;
u64 rx_bytes;
u64 tx_bytes;
u64 multicast;
u64 collisions;
u64 rx_errors;
u64 rx_length_errors;
u64 rx_crc_errors;
u64 rx_frame_errors;
u64 rx_fifo_errors;
u64 rx_missed_errors;
u64 tx_errors;
u64 tx_fifo_errors;
u64 tx_aborted_errors;
u64 tx_window_errors;
u64 tx_carrier_errors;
u64 tx_pause; /* num Pause packet transmitted. */
u64 excecol; /* num tx packets aborted due to excessive collisions. */
u64 deffer; /* num deferred tx packets */
u64 scc; /* num packets subsequently transmitted successfully w/ single prior collision. */
u64 mcc; /* num packets subsequently transmitted successfully w/ multiple prior collisions. */
u64 latecol; /* num tx packets w/ late collisions. */
u64 tx_underun; /* num tx packets aborted due to transmit FIFO underrun, or TRD FIFO underrun */
u64 tx_trunc; /* num tx packets truncated due to size exceeding MTU, regardless whether truncated by Selene or not. (The name doesn't really reflect the meaning in this case.) */
u64 rx_pause; /* num Pause packets received. */
u64 rx_rrd_ov;
u64 rx_trunc;
};
/* board specific private data structure */
#define ATL1_REGS_LEN 8
/* Structure containing variables used by the shared code */
struct atl1_hw {
u8 __iomem *hw_addr;
struct atl1_adapter *back;
enum atl1_dma_order dma_ord;
enum atl1_dma_rcb rcb_value;
enum atl1_dma_req_block dmar_block;
enum atl1_dma_req_block dmaw_block;
u8 preamble_len;
u8 max_retry; /* Retransmission maximum, after which the packet will be discarded */
u8 jam_ipg; /* IPG to start JAM for collision based flow control in half-duplex mode. In units of 8-bit time */
u8 ipgt; /* Desired back to back inter-packet gap. The default is 96-bit time */
u8 min_ifg; /* Minimum number of IFG to enforce in between RX frames. Frame gap below such IFP is dropped */
u8 ipgr1; /* 64bit Carrier-Sense window */
u8 ipgr2; /* 96-bit IPG window */
u8 tpd_burst; /* Number of TPD to prefetch in cache-aligned burst. Each TPD is 16 bytes long */
u8 rfd_burst; /* Number of RFD to prefetch in cache-aligned burst. Each RFD is 12 bytes long */
u8 rfd_fetch_gap;
u8 rrd_burst; /* Threshold number of RRDs that can be retired in a burst. Each RRD is 16 bytes long */
u8 tpd_fetch_th;
u8 tpd_fetch_gap;
u16 tx_jumbo_task_th;
u16 txf_burst; /* Number of data bytes to read in a cache-aligned burst. Each SRAM entry is
8 bytes long */
u16 rx_jumbo_th; /* Jumbo packet size for non-VLAN packet. VLAN packets should add 4 bytes */
u16 rx_jumbo_lkah;
u16 rrd_ret_timer; /* RRD retirement timer. Decrement by 1 after every 512ns passes. */
u16 lcol; /* Collision Window */
u16 cmb_tpd;
u16 cmb_rrd;
u16 cmb_rx_timer;
u16 cmb_tx_timer;
u32 smb_timer;
u16 media_type;
u16 autoneg_advertised;
u16 pci_cmd_word;
u16 mii_autoneg_adv_reg;
u16 mii_1000t_ctrl_reg;
u32 mem_rang;
u32 txcw;
u32 max_frame_size;
u32 min_frame_size;
u32 mc_filter_type;
u32 num_mc_addrs;
u32 collision_delta;
u32 tx_packet_delta;
u16 phy_spd_default;
u16 dev_rev;
u8 revision_id;
/* spi flash */
u8 flash_vendor;
u8 dma_fairness;
u8 mac_addr[ETH_ALEN];
u8 perm_mac_addr[ETH_ALEN];
/* bool phy_preamble_sup; */
bool phy_configured;
};
struct atl1_adapter {
/* OS defined structs */
struct net_device *netdev;
struct pci_dev *pdev;
struct net_device_stats net_stats;
struct atl1_sft_stats soft_stats;
struct vlan_group *vlgrp;
u32 rx_buffer_len;
u32 wol;
u16 link_speed;
u16 link_duplex;
spinlock_t lock;
atomic_t irq_sem;
struct work_struct tx_timeout_task;
struct work_struct link_chg_task;
struct work_struct pcie_dma_to_rst_task;
struct timer_list watchdog_timer;
struct timer_list phy_config_timer;
bool phy_timer_pending;
bool mac_disabled;
/* All descriptor rings' memory */
struct atl1_ring_header ring_header;
/* TX */
struct atl1_tpd_ring tpd_ring;
spinlock_t mb_lock;
/* RX */
struct atl1_rfd_ring rfd_ring;
struct atl1_rrd_ring rrd_ring;
u64 hw_csum_err;
u64 hw_csum_good;
u32 gorcl;
u64 gorcl_old;
/* Interrupt Moderator timer ( 2us resolution) */
u16 imt;
/* Interrupt Clear timer (2us resolution) */
u16 ict;
/* MII interface info */
struct mii_if_info mii;
/* structs defined in atl1_hw.h */
u32 bd_number; /* board number */
bool pci_using_64;
struct atl1_hw hw;
struct atl1_smb smb;
struct atl1_cmb cmb;
u32 pci_state[16];
};
#endif /* _ATL1_H_ */
drivers/net/atl1/atl1_ethtool.c 0 → 100644
View file @ f3cc28c7
/*
* Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
* Copyright(c) 2006 Chris Snook <csnook@redhat.com>
* Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.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.
*/
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/ethtool.h>
#include <linux/netdevice.h>
#include <linux/mii.h>
#include <asm/uaccess.h>
#include "atl1.h"
struct atl1_stats {
char stat_string[ETH_GSTRING_LEN];
int sizeof_stat;
int stat_offset;
};
#define ATL1_STAT(m) sizeof(((struct atl1_adapter *)0)->m), \
offsetof(struct atl1_adapter, m)
static struct atl1_stats atl1_gstrings_stats[] = {
{"rx_packets", ATL1_STAT(soft_stats.rx_packets)},
{"tx_packets", ATL1_STAT(soft_stats.tx_packets)},
{"rx_bytes", ATL1_STAT(soft_stats.rx_bytes)},
{"tx_bytes", ATL1_STAT(soft_stats.tx_bytes)},
{"rx_errors", ATL1_STAT(soft_stats.rx_errors)},
{"tx_errors", ATL1_STAT(soft_stats.tx_errors)},
{"rx_dropped", ATL1_STAT(net_stats.rx_dropped)},
{"tx_dropped", ATL1_STAT(net_stats.tx_dropped)},
{"multicast", ATL1_STAT(soft_stats.multicast)},
{"collisions", ATL1_STAT(soft_stats.collisions)},
{"rx_length_errors", ATL1_STAT(soft_stats.rx_length_errors)},
{"rx_over_errors", ATL1_STAT(soft_stats.rx_missed_errors)},
{"rx_crc_errors", ATL1_STAT(soft_stats.rx_crc_errors)},
{"rx_frame_errors", ATL1_STAT(soft_stats.rx_frame_errors)},
{"rx_fifo_errors", ATL1_STAT(soft_stats.rx_fifo_errors)},
{"rx_missed_errors", ATL1_STAT(soft_stats.rx_missed_errors)},
{"tx_aborted_errors", ATL1_STAT(soft_stats.tx_aborted_errors)},
{"tx_carrier_errors", ATL1_STAT(soft_stats.tx_carrier_errors)},
{"tx_fifo_errors", ATL1_STAT(soft_stats.tx_fifo_errors)},
{"tx_window_errors", ATL1_STAT(soft_stats.tx_window_errors)},
{"tx_abort_exce_coll", ATL1_STAT(soft_stats.excecol)},
{"tx_abort_late_coll", ATL1_STAT(soft_stats.latecol)},
{"tx_deferred_ok", ATL1_STAT(soft_stats.deffer)},
{"tx_single_coll_ok", ATL1_STAT(soft_stats.scc)},
{"tx_multi_coll_ok", ATL1_STAT(soft_stats.mcc)},
{"tx_underun", ATL1_STAT(soft_stats.tx_underun)},
{"tx_trunc", ATL1_STAT(soft_stats.tx_trunc)},
{"tx_pause", ATL1_STAT(soft_stats.tx_pause)},
{"rx_pause", ATL1_STAT(soft_stats.rx_pause)},
{"rx_rrd_ov", ATL1_STAT(soft_stats.rx_rrd_ov)},
{"rx_trunc", ATL1_STAT(soft_stats.rx_trunc)}
};
static void atl1_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, u64 *data)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
int i;
char *p;
for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) {
p = (char *)adapter+atl1_gstrings_stats[i].stat_offset;
data[i] = (atl1_gstrings_stats[i].sizeof_stat ==
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
}
static int atl1_get_stats_count(struct net_device *netdev)
{
return ARRAY_SIZE(atl1_gstrings_stats);
}
static int atl1_get_settings(struct net_device *netdev,
struct ethtool_cmd *ecmd)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
struct atl1_hw *hw = &adapter->hw;
ecmd->supported = (SUPPORTED_10baseT_Half |
SUPPORTED_10baseT_Full |
SUPPORTED_100baseT_Half |
SUPPORTED_100baseT_Full |
SUPPORTED_1000baseT_Full |
SUPPORTED_Autoneg | SUPPORTED_TP);
ecmd->advertising = ADVERTISED_TP;
if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
hw->media_type == MEDIA_TYPE_1000M_FULL) {
ecmd->advertising |= ADVERTISED_Autoneg;
if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR) {
ecmd->advertising |= ADVERTISED_Autoneg;
ecmd->advertising |=
(ADVERTISED_10baseT_Half |
ADVERTISED_10baseT_Full |
ADVERTISED_100baseT_Half |
ADVERTISED_100baseT_Full |
ADVERTISED_1000baseT_Full);
}
else
ecmd->advertising |= (ADVERTISED_1000baseT_Full);
}
ecmd->port = PORT_TP;
ecmd->phy_address = 0;
ecmd->transceiver = XCVR_INTERNAL;
if (netif_carrier_ok(adapter->netdev)) {
u16 link_speed, link_duplex;
atl1_get_speed_and_duplex(hw, &link_speed, &link_duplex);
ecmd->speed = link_speed;
if (link_duplex == FULL_DUPLEX)
ecmd->duplex = DUPLEX_FULL;
else
ecmd->duplex = DUPLEX_HALF;
} else {
ecmd->speed = -1;
ecmd->duplex = -1;
}
if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
hw->media_type == MEDIA_TYPE_1000M_FULL)
ecmd->autoneg = AUTONEG_ENABLE;
else
ecmd->autoneg = AUTONEG_DISABLE;
return 0;
}
static int atl1_set_settings(struct net_device *netdev,
struct ethtool_cmd *ecmd)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
struct atl1_hw *hw = &adapter->hw;
u16 phy_data;
int ret_val = 0;
u16 old_media_type = hw->media_type;
if (netif_running(adapter->netdev)) {
printk(KERN_DEBUG "%s: ethtool shutting down adapter\n",
atl1_driver_name);
atl1_down(adapter);
}
if (ecmd->autoneg == AUTONEG_ENABLE)
hw->media_type = MEDIA_TYPE_AUTO_SENSOR;
else {
if (ecmd->speed == SPEED_1000) {
if (ecmd->duplex != DUPLEX_FULL) {
printk(KERN_WARNING
"%s: can't force to 1000M half duplex\n",
atl1_driver_name);
ret_val = -EINVAL;
goto exit_sset;
}
hw->media_type = MEDIA_TYPE_1000M_FULL;
} else if (ecmd->speed == SPEED_100) {
if (ecmd->duplex == DUPLEX_FULL) {
hw->media_type = MEDIA_TYPE_100M_FULL;
} else
hw->media_type = MEDIA_TYPE_100M_HALF;
} else {
if (ecmd->duplex == DUPLEX_FULL)
hw->media_type = MEDIA_TYPE_10M_FULL;
else
hw->media_type = MEDIA_TYPE_10M_HALF;
}
}
switch (hw->media_type) {
case MEDIA_TYPE_AUTO_SENSOR:
ecmd->advertising =
ADVERTISED_10baseT_Half |
ADVERTISED_10baseT_Full |
ADVERTISED_100baseT_Half |
ADVERTISED_100baseT_Full |
ADVERTISED_1000baseT_Full |
ADVERTISED_Autoneg | ADVERTISED_TP;
break;
case MEDIA_TYPE_1000M_FULL:
ecmd->advertising =
ADVERTISED_1000baseT_Full |
ADVERTISED_Autoneg | ADVERTISED_TP;
break;
default:
ecmd->advertising = 0;
break;
}
if (atl1_phy_setup_autoneg_adv(hw)) {
ret_val = -EINVAL;
printk(KERN_WARNING
"%s: invalid ethtool speed/duplex setting\n",
atl1_driver_name);
goto exit_sset;
}
if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
hw->media_type == MEDIA_TYPE_1000M_FULL)
phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
else {
switch (hw->media_type) {
case MEDIA_TYPE_100M_FULL:
phy_data =
MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
MII_CR_RESET;
break;
case MEDIA_TYPE_100M_HALF:
phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
break;
case MEDIA_TYPE_10M_FULL:
phy_data =
MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
break;
default: /* MEDIA_TYPE_10M_HALF: */
phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
break;
}
}
atl1_write_phy_reg(hw, MII_BMCR, phy_data);
exit_sset:
if (ret_val)
hw->media_type = old_media_type;
if (netif_running(adapter->netdev)) {
printk(KERN_DEBUG "%s: ethtool starting adapter\n",
atl1_driver_name);
atl1_up(adapter);
} else if (!ret_val) {
printk(KERN_DEBUG "%s: ethtool resetting adapter\n",
atl1_driver_name);
atl1_reset(adapter);
}
return ret_val;
}
static void atl1_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *drvinfo)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
strncpy(drvinfo->driver, atl1_driver_name, sizeof(drvinfo->driver));
strncpy(drvinfo->version, atl1_driver_version,
sizeof(drvinfo->version));
strncpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
strncpy(drvinfo->bus_info, pci_name(adapter->pdev),
sizeof(drvinfo->bus_info));
drvinfo->eedump_len = ATL1_EEDUMP_LEN;
}
static void atl1_get_wol(struct net_device *netdev,
struct ethtool_wolinfo *wol)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC;
wol->wolopts = 0;
if (adapter->wol & ATL1_WUFC_EX)
wol->wolopts |= WAKE_UCAST;
if (adapter->wol & ATL1_WUFC_MC)
wol->wolopts |= WAKE_MCAST;
if (adapter->wol & ATL1_WUFC_BC)
wol->wolopts |= WAKE_BCAST;
if (adapter->wol & ATL1_WUFC_MAG)
wol->wolopts |= WAKE_MAGIC;
return;
}
static int atl1_set_wol(struct net_device *netdev,
struct ethtool_wolinfo *wol)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
return -EOPNOTSUPP;
adapter->wol = 0;
if (wol->wolopts & WAKE_UCAST)
adapter->wol |= ATL1_WUFC_EX;
if (wol->wolopts & WAKE_MCAST)
adapter->wol |= ATL1_WUFC_MC;
if (wol->wolopts & WAKE_BCAST)
adapter->wol |= ATL1_WUFC_BC;
if (wol->wolopts & WAKE_MAGIC)
adapter->wol |= ATL1_WUFC_MAG;
return 0;
}
static void atl1_get_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
struct atl1_tpd_ring *txdr = &adapter->tpd_ring;
struct atl1_rfd_ring *rxdr = &adapter->rfd_ring;
ring->rx_max_pending = ATL1_MAX_RFD;
ring->tx_max_pending = ATL1_MAX_TPD;
ring->rx_mini_max_pending = 0;
ring->rx_jumbo_max_pending = 0;
ring->rx_pending = rxdr->count;
ring->tx_pending = txdr->count;
ring->rx_mini_pending = 0;
ring->rx_jumbo_pending = 0;
}
static int atl1_set_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
struct atl1_tpd_ring *tpdr = &adapter->tpd_ring;
struct atl1_rrd_ring *rrdr = &adapter->rrd_ring;
struct atl1_rfd_ring *rfdr = &adapter->rfd_ring;
struct atl1_tpd_ring tpd_old, tpd_new;
struct atl1_rfd_ring rfd_old, rfd_new;
struct atl1_rrd_ring rrd_old, rrd_new;
struct atl1_ring_header rhdr_old, rhdr_new;
int err;
tpd_old = adapter->tpd_ring;
rfd_old = adapter->rfd_ring;
rrd_old = adapter->rrd_ring;
rhdr_old = adapter->ring_header;
if (netif_running(adapter->netdev))
atl1_down(adapter);
rfdr->count = (u16) max(ring->rx_pending, (u32) ATL1_MIN_RFD);
rfdr->count = rfdr->count > ATL1_MAX_RFD ? ATL1_MAX_RFD :
rfdr->count;
rfdr->count = (rfdr->count + 3) & ~3;
rrdr->count = rfdr->count;
tpdr->count = (u16) max(ring->tx_pending, (u32) ATL1_MIN_TPD);
tpdr->count = tpdr->count > ATL1_MAX_TPD ? ATL1_MAX_TPD :
tpdr->count;
tpdr->count = (tpdr->count + 3) & ~3;
if (netif_running(adapter->netdev)) {
/* try to get new resources before deleting old */
err = atl1_setup_ring_resources(adapter);
if (err)
goto err_setup_ring;
/*
* save the new, restore the old in order to free it,
* then restore the new back again
*/
rfd_new = adapter->rfd_ring;
rrd_new = adapter->rrd_ring;
tpd_new = adapter->tpd_ring;
rhdr_new = adapter->ring_header;
adapter->rfd_ring = rfd_old;
adapter->rrd_ring = rrd_old;
adapter->tpd_ring = tpd_old;
adapter->ring_header = rhdr_old;
atl1_free_ring_resources(adapter);
adapter->rfd_ring = rfd_new;
adapter->rrd_ring = rrd_new;
adapter->tpd_ring = tpd_new;
adapter->ring_header = rhdr_new;
err = atl1_up(adapter);
if (err)
return err;
}
return 0;
err_setup_ring:
adapter->rfd_ring = rfd_old;
adapter->rrd_ring = rrd_old;
adapter->tpd_ring = tpd_old;
adapter->ring_header = rhdr_old;
atl1_up(adapter);
return err;
}
static void atl1_get_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *epause)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
struct atl1_hw *hw = &adapter->hw;
if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
hw->media_type == MEDIA_TYPE_1000M_FULL) {
epause->autoneg = AUTONEG_ENABLE;
} else {
epause->autoneg = AUTONEG_DISABLE;
}
epause->rx_pause = 1;
epause->tx_pause = 1;
}
static int atl1_set_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *epause)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
struct atl1_hw *hw = &adapter->hw;
if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
hw->media_type == MEDIA_TYPE_1000M_FULL) {
epause->autoneg = AUTONEG_ENABLE;
} else {
epause->autoneg = AUTONEG_DISABLE;
}
epause->rx_pause = 1;
epause->tx_pause = 1;
return 0;
}
static u32 atl1_get_rx_csum(struct net_device *netdev)
{
return 1;
}
static void atl1_get_strings(struct net_device *netdev, u32 stringset,
u8 *data)
{
u8 *p = data;
int i;
switch (stringset) {
case ETH_SS_STATS:
for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) {
memcpy(p, atl1_gstrings_stats[i].stat_string,
ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
break;
}
}
static int atl1_nway_reset(struct net_device *netdev)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
struct atl1_hw *hw = &adapter->hw;
if (netif_running(netdev)) {
u16 phy_data;
atl1_down(adapter);
if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
hw->media_type == MEDIA_TYPE_1000M_FULL) {
phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
} else {
switch (hw->media_type) {
case MEDIA_TYPE_100M_FULL:
phy_data = MII_CR_FULL_DUPLEX |
MII_CR_SPEED_100 | MII_CR_RESET;
break;
case MEDIA_TYPE_100M_HALF:
phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
break;
case MEDIA_TYPE_10M_FULL:
phy_data = MII_CR_FULL_DUPLEX |
MII_CR_SPEED_10 | MII_CR_RESET;
break;
default: /* MEDIA_TYPE_10M_HALF */
phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
}
}
atl1_write_phy_reg(hw, MII_BMCR, phy_data);
atl1_up(adapter);
}
return 0;
}
const struct ethtool_ops atl1_ethtool_ops = {
.get_settings = atl1_get_settings,
.set_settings = atl1_set_settings,
.get_drvinfo = atl1_get_drvinfo,
.get_wol = atl1_get_wol,
.set_wol = atl1_set_wol,
.get_ringparam = atl1_get_ringparam,
.set_ringparam = atl1_set_ringparam,
.get_pauseparam = atl1_get_pauseparam,
.set_pauseparam = atl1_set_pauseparam,
.get_rx_csum = atl1_get_rx_csum,
.get_tx_csum = ethtool_op_get_tx_csum,
.set_tx_csum = ethtool_op_set_tx_hw_csum,
.get_link = ethtool_op_get_link,
.get_sg = ethtool_op_get_sg,
.set_sg = ethtool_op_set_sg,
.get_strings = atl1_get_strings,
.nway_reset = atl1_nway_reset,
.get_ethtool_stats = atl1_get_ethtool_stats,
.get_stats_count = atl1_get_stats_count,
.get_tso = ethtool_op_get_tso,
.set_tso = ethtool_op_set_tso,
};
drivers/net/atl1/atl1_hw.c 0 → 100644
View file @ f3cc28c7
/*
* Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
* Copyright(c) 2006 Chris Snook <csnook@redhat.com>
* Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.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.
*/
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/if_vlan.h>
#include <linux/etherdevice.h>
#include <linux/crc32.h>
#include <asm/byteorder.h>
#include "atl1.h"
/*
* Reset the transmit and receive units; mask and clear all interrupts.
* hw - Struct containing variables accessed by shared code
* return : ATL1_SUCCESS or idle status (if error)
*/
s32 atl1_reset_hw(struct atl1_hw *hw)
{
u32 icr;
int i;
/*
* Clear Interrupt mask to stop board from generating
* interrupts & Clear any pending interrupt events
*/
/*
* iowrite32(0, hw->hw_addr + REG_IMR);
* iowrite32(0xffffffff, hw->hw_addr + REG_ISR);
*/
/*
* Issue Soft Reset to the MAC. This will reset the chip's
* transmit, receive, DMA. It will not effect
* the current PCI configuration. The global reset bit is self-
* clearing, and should clear within a microsecond.
*/
iowrite32(MASTER_CTRL_SOFT_RST, hw->hw_addr + REG_MASTER_CTRL);
ioread32(hw->hw_addr + REG_MASTER_CTRL);
iowrite16(1, hw->hw_addr + REG_GPHY_ENABLE);
ioread16(hw->hw_addr + REG_GPHY_ENABLE);
msleep(1); /* delay about 1ms */
/* Wait at least 10ms for All module to be Idle */
for (i = 0; i < 10; i++) {
icr = ioread32(hw->hw_addr + REG_IDLE_STATUS);
if (!icr)
break;
msleep(1); /* delay 1 ms */
cpu_relax(); /* FIXME: is this still the right way to do this? */
}
if (icr) {
printk (KERN_DEBUG "icr = %x\n", icr);
return icr;
}
return ATL1_SUCCESS;
}
/* function about EEPROM
*
* check_eeprom_exist
* return 0 if eeprom exist
*/
static int atl1_check_eeprom_exist(struct atl1_hw *hw)
{
u32 value;
value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
if (value & SPI_FLASH_CTRL_EN_VPD) {
value &= ~SPI_FLASH_CTRL_EN_VPD;
iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
}
value = ioread16(hw->hw_addr + REG_PCIE_CAP_LIST);
return ((value & 0xFF00) == 0x6C00) ? 0 : 1;
}
static bool atl1_read_eeprom(struct atl1_hw *hw, u32 offset, u32 *p_value)
{
int i;
u32 control;
if (offset & 3)
return false; /* address do not align */
iowrite32(0, hw->hw_addr + REG_VPD_DATA);
control = (offset & VPD_CAP_VPD_ADDR_MASK) << VPD_CAP_VPD_ADDR_SHIFT;
iowrite32(control, hw->hw_addr + REG_VPD_CAP);
ioread32(hw->hw_addr + REG_VPD_CAP);
for (i = 0; i < 10; i++) {
msleep(2);
control = ioread32(hw->hw_addr + REG_VPD_CAP);
if (control & VPD_CAP_VPD_FLAG)
break;
}
if (control & VPD_CAP_VPD_FLAG) {
*p_value = ioread32(hw->hw_addr + REG_VPD_DATA);
return true;
}
return false; /* timeout */
}
/*
* Reads the value from a PHY register
* hw - Struct containing variables accessed by shared code
* reg_addr - address of the PHY register to read
*/
s32 atl1_read_phy_reg(struct atl1_hw *hw, u16 reg_addr, u16 *phy_data)
{
u32 val;
int i;
val = ((u32) (reg_addr & MDIO_REG_ADDR_MASK)) << MDIO_REG_ADDR_SHIFT |
MDIO_START | MDIO_SUP_PREAMBLE | MDIO_RW | MDIO_CLK_25_4 <<
MDIO_CLK_SEL_SHIFT;
iowrite32(val, hw->hw_addr + REG_MDIO_CTRL);
ioread32(hw->hw_addr + REG_MDIO_CTRL);
for (i = 0; i < MDIO_WAIT_TIMES; i++) {
udelay(2);
val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
if (!(val & (MDIO_START | MDIO_BUSY)))
break;
}
if (!(val & (MDIO_START | MDIO_BUSY))) {
*phy_data = (u16) val;
return ATL1_SUCCESS;
}
return ATL1_ERR_PHY;
}
#define CUSTOM_SPI_CS_SETUP 2
#define CUSTOM_SPI_CLK_HI 2
#define CUSTOM_SPI_CLK_LO 2
#define CUSTOM_SPI_CS_HOLD 2
#define CUSTOM_SPI_CS_HI 3
static bool atl1_spi_read(struct atl1_hw *hw, u32 addr, u32 *buf)
{
int i;
u32 value;
iowrite32(0, hw->hw_addr + REG_SPI_DATA);
iowrite32(addr, hw->hw_addr + REG_SPI_ADDR);
value = SPI_FLASH_CTRL_WAIT_READY |
(CUSTOM_SPI_CS_SETUP & SPI_FLASH_CTRL_CS_SETUP_MASK) <<
SPI_FLASH_CTRL_CS_SETUP_SHIFT | (CUSTOM_SPI_CLK_HI &
SPI_FLASH_CTRL_CLK_HI_MASK) <<
SPI_FLASH_CTRL_CLK_HI_SHIFT | (CUSTOM_SPI_CLK_LO &
SPI_FLASH_CTRL_CLK_LO_MASK) <<
SPI_FLASH_CTRL_CLK_LO_SHIFT | (CUSTOM_SPI_CS_HOLD &
SPI_FLASH_CTRL_CS_HOLD_MASK) <<
SPI_FLASH_CTRL_CS_HOLD_SHIFT | (CUSTOM_SPI_CS_HI &
SPI_FLASH_CTRL_CS_HI_MASK) <<
SPI_FLASH_CTRL_CS_HI_SHIFT | (1 & SPI_FLASH_CTRL_INS_MASK) <<
SPI_FLASH_CTRL_INS_SHIFT;
iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
value |= SPI_FLASH_CTRL_START;
iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
for (i = 0; i < 10; i++) {
msleep(1); /* 1ms */
value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
if (!(value & SPI_FLASH_CTRL_START))
break;
}
if (value & SPI_FLASH_CTRL_START)
return false;
*buf = ioread32(hw->hw_addr + REG_SPI_DATA);
return true;
}
/*
* get_permanent_address
* return 0 if get valid mac address,
*/
static int atl1_get_permanent_address(struct atl1_hw *hw)
{
u32 addr[2];
u32 i, control;
u16 reg;
u8 eth_addr[ETH_ALEN];
bool key_valid;
if (is_valid_ether_addr(hw->perm_mac_addr))
return 0;
/* init */
addr[0] = addr[1] = 0;
if (!atl1_check_eeprom_exist(hw)) { /* eeprom exist */
reg = 0;
key_valid = false;
/* Read out all EEPROM content */
i = 0;
while (1) {
if (atl1_read_eeprom(hw, i + 0x100, &control)) {
if (key_valid) {
if (reg == REG_MAC_STA_ADDR)
addr[0] = control;
else if (reg == (REG_MAC_STA_ADDR + 4))
addr[1] = control;
key_valid = false;
} else if ((control & 0xff) == 0x5A) {
key_valid = true;
reg = (u16) (control >> 16);
} else
break; /* assume data end while encount an invalid KEYWORD */
} else
break; /* read error */
i += 4;
}
/*
* The following 2 lines are the Attansic originals. Saving for posterity.
* *(u32 *) & eth_addr[2] = LONGSWAP(addr[0]);
* *(u16 *) & eth_addr[0] = SHORTSWAP(*(u16 *) & addr[1]);
*/
*(u32 *) & eth_addr[2] = swab32(addr[0]);
*(u16 *) & eth_addr[0] = swab16(*(u16 *) & addr[1]);
if (is_valid_ether_addr(eth_addr)) {
memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN);
return 0;
}
return 1;
}
/* see if SPI FLAGS exist ? */
addr[0] = addr[1] = 0;
reg = 0;
key_valid = false;
i = 0;
while (1) {
if (atl1_spi_read(hw, i + 0x1f000, &control)) {
if (key_valid) {
if (reg == REG_MAC_STA_ADDR)
addr[0] = control;
else if (reg == (REG_MAC_STA_ADDR + 4))
addr[1] = control;
key_valid = false;
} else if ((control & 0xff) == 0x5A) {
key_valid = true;
reg = (u16) (control >> 16);
} else
break; /* data end */
} else
break; /* read error */
i += 4;
}
/*
* The following 2 lines are the Attansic originals. Saving for posterity.
* *(u32 *) & eth_addr[2] = LONGSWAP(addr[0]);
* *(u16 *) & eth_addr[0] = SHORTSWAP(*(u16 *) & addr[1]);
*/
*(u32 *) & eth_addr[2] = swab32(addr[0]);
*(u16 *) & eth_addr[0] = swab16(*(u16 *) & addr[1]);
if (is_valid_ether_addr(eth_addr)) {
memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN);
return 0;
}
return 1;
}
/*
* Reads the adapter's MAC address from the EEPROM
* hw - Struct containing variables accessed by shared code
*/
s32 atl1_read_mac_addr(struct atl1_hw *hw)
{
u16 i;
if (atl1_get_permanent_address(hw))
random_ether_addr(hw->perm_mac_addr);
for (i = 0; i < ETH_ALEN; i++)
hw->mac_addr[i] = hw->perm_mac_addr[i];
return ATL1_SUCCESS;
}
/*
* Hashes an address to determine its location in the multicast table
* hw - Struct containing variables accessed by shared code
* mc_addr - the multicast address to hash
*
* atl1_hash_mc_addr
* purpose
* set hash value for a multicast address
* hash calcu processing :
* 1. calcu 32bit CRC for multicast address
* 2. reverse crc with MSB to LSB
*/
u32 atl1_hash_mc_addr(struct atl1_hw *hw, u8 *mc_addr)
{
u32 crc32, value = 0;
int i;
crc32 = ether_crc_le(6, mc_addr);
crc32 = ~crc32;
for (i = 0; i < 32; i++)
value |= (((crc32 >> i) & 1) << (31 - i));
return value;
}
/*
* Sets the bit in the multicast table corresponding to the hash value.
* hw - Struct containing variables accessed by shared code
* hash_value - Multicast address hash value
*/
void atl1_hash_set(struct atl1_hw *hw, u32 hash_value)
{
u32 hash_bit, hash_reg;
u32 mta;
/*
* The HASH Table is a register array of 2 32-bit registers.
* It is treated like an array of 64 bits. We want to set
* bit BitArray[hash_value]. So we figure out what register
* the bit is in, read it, OR in the new bit, then write
* back the new value. The register is determined by the
* upper 7 bits of the hash value and the bit within that
* register are determined by the lower 5 bits of the value.
*/
hash_reg = (hash_value >> 31) & 0x1;
hash_bit = (hash_value >> 26) & 0x1F;
mta = ioread32((hw + REG_RX_HASH_TABLE) + (hash_reg << 2));
mta |= (1 << hash_bit);
iowrite32(mta, (hw->hw_addr + REG_RX_HASH_TABLE) + (hash_reg << 2));
}
/*
* Writes a value to a PHY register
* hw - Struct containing variables accessed by shared code
* reg_addr - address of the PHY register to write
* data - data to write to the PHY
*/
s32 atl1_write_phy_reg(struct atl1_hw *hw, u32 reg_addr, u16 phy_data)
{
int i;
u32 val;
val = ((u32) (phy_data & MDIO_DATA_MASK)) << MDIO_DATA_SHIFT |
(reg_addr & MDIO_REG_ADDR_MASK) << MDIO_REG_ADDR_SHIFT |
MDIO_SUP_PREAMBLE |
MDIO_START | MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT;
iowrite32(val, hw->hw_addr + REG_MDIO_CTRL);
ioread32(hw->hw_addr + REG_MDIO_CTRL);
for (i = 0; i < MDIO_WAIT_TIMES; i++) {
udelay(2);
val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
if (!(val & (MDIO_START | MDIO_BUSY)))
break;
}
if (!(val & (MDIO_START | MDIO_BUSY)))
return ATL1_SUCCESS;
return ATL1_ERR_PHY;
}
/*
* Make L001's PHY out of Power Saving State (bug)
* hw - Struct containing variables accessed by shared code
* when power on, L001's PHY always on Power saving State
* (Gigabit Link forbidden)
*/
static s32 atl1_phy_leave_power_saving(struct atl1_hw *hw)
{
s32 ret;
ret = atl1_write_phy_reg(hw, 29, 0x0029);
if (ret)
return ret;
return atl1_write_phy_reg(hw, 30, 0);
}
/*
*TODO: do something or get rid of this
*/
s32 atl1_phy_enter_power_saving(struct atl1_hw *hw)
{
/* s32 ret_val;
* u16 phy_data;
*/
/*
ret_val = atl1_write_phy_reg(hw, ...);
ret_val = atl1_write_phy_reg(hw, ...);
....
*/
return ATL1_SUCCESS;
}
/*
* Resets the PHY and make all config validate
* hw - Struct containing variables accessed by shared code
*
* Sets bit 15 and 12 of the MII Control regiser (for F001 bug)
*/
static s32 atl1_phy_reset(struct atl1_hw *hw)
{
s32 ret_val;
u16 phy_data;
if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
hw->media_type == MEDIA_TYPE_1000M_FULL)
phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
else {
switch (hw->media_type) {
case MEDIA_TYPE_100M_FULL:
phy_data =
MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
MII_CR_RESET;
break;
case MEDIA_TYPE_100M_HALF:
phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
break;
case MEDIA_TYPE_10M_FULL:
phy_data =
MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
break;
default: /* MEDIA_TYPE_10M_HALF: */
phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
break;
}
}
ret_val = atl1_write_phy_reg(hw, MII_BMCR, phy_data);
if (ret_val) {
u32 val;
int i;
/* pcie serdes link may be down! */
printk(KERN_DEBUG "%s: autoneg caused pcie phy link down\n",
atl1_driver_name);
for (i = 0; i < 25; i++) {
msleep(1);
val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
if (!(val & (MDIO_START | MDIO_BUSY)))
break;
}
if ((val & (MDIO_START | MDIO_BUSY)) != 0) {
printk(KERN_WARNING
"%s: pcie link down at least for 25ms\n",
atl1_driver_name);
return ret_val;
}
}
return ATL1_SUCCESS;
}
/*
* Configures PHY autoneg and flow control advertisement settings
* hw - Struct containing variables accessed by shared code
*/
s32 atl1_phy_setup_autoneg_adv(struct atl1_hw *hw)
{
s32 ret_val;
s16 mii_autoneg_adv_reg;
s16 mii_1000t_ctrl_reg;
/* Read the MII Auto-Neg Advertisement Register (Address 4). */
mii_autoneg_adv_reg = MII_AR_DEFAULT_CAP_MASK;
/* Read the MII 1000Base-T Control Register (Address 9). */
mii_1000t_ctrl_reg = MII_AT001_CR_1000T_DEFAULT_CAP_MASK;
/*
* First we clear all the 10/100 mb speed bits in the Auto-Neg
* Advertisement Register (Address 4) and the 1000 mb speed bits in
* the 1000Base-T Control Register (Address 9).
*/
mii_autoneg_adv_reg &= ~MII_AR_SPEED_MASK;
mii_1000t_ctrl_reg &= ~MII_AT001_CR_1000T_SPEED_MASK;
/*
* Need to parse media_type and set up
* the appropriate PHY registers.
*/
switch (hw->media_type) {
case MEDIA_TYPE_AUTO_SENSOR:
mii_autoneg_adv_reg |= (MII_AR_10T_HD_CAPS |
MII_AR_10T_FD_CAPS |
MII_AR_100TX_HD_CAPS |
MII_AR_100TX_FD_CAPS);
mii_1000t_ctrl_reg |= MII_AT001_CR_1000T_FD_CAPS;
break;
case MEDIA_TYPE_1000M_FULL:
mii_1000t_ctrl_reg |= MII_AT001_CR_1000T_FD_CAPS;
break;
case MEDIA_TYPE_100M_FULL:
mii_autoneg_adv_reg |= MII_AR_100TX_FD_CAPS;
break;
case MEDIA_TYPE_100M_HALF:
mii_autoneg_adv_reg |= MII_AR_100TX_HD_CAPS;
break;
case MEDIA_TYPE_10M_FULL:
mii_autoneg_adv_reg |= MII_AR_10T_FD_CAPS;
break;
default:
mii_autoneg_adv_reg |= MII_AR_10T_HD_CAPS;
break;
}
/* flow control fixed to enable all */
mii_autoneg_adv_reg |= (MII_AR_ASM_DIR | MII_AR_PAUSE);
hw->mii_autoneg_adv_reg = mii_autoneg_adv_reg;
hw->mii_1000t_ctrl_reg = mii_1000t_ctrl_reg;
ret_val = atl1_write_phy_reg(hw, MII_ADVERTISE, mii_autoneg_adv_reg);
if (ret_val)
return ret_val;
ret_val = atl1_write_phy_reg(hw, MII_AT001_CR, mii_1000t_ctrl_reg);
if (ret_val)
return ret_val;
return ATL1_SUCCESS;
}
/*
* Configures link settings.
* hw - Struct containing variables accessed by shared code
* Assumes the hardware has previously been reset and the
* transmitter and receiver are not enabled.
*/
static s32 atl1_setup_link(struct atl1_hw *hw)
{
s32 ret_val;
/*
* Options:
* PHY will advertise value(s) parsed from
* autoneg_advertised and fc
* no matter what autoneg is , We will not wait link result.
*/
ret_val = atl1_phy_setup_autoneg_adv(hw);
if (ret_val) {
printk(KERN_DEBUG "%s: error setting up autonegotiation\n",
atl1_driver_name);
return ret_val;
}
/* SW.Reset , En-Auto-Neg if needed */
ret_val = atl1_phy_reset(hw);
if (ret_val) {
printk(KERN_DEBUG "%s: error resetting the phy\n",
atl1_driver_name);
return ret_val;
}
hw->phy_configured = true;
return ret_val;
}
static struct atl1_spi_flash_dev flash_table[] = {
/* MFR_NAME WRSR READ PRGM WREN WRDI RDSR RDID SECTOR_ERASE CHIP_ERASE */
{"Atmel", 0x00, 0x03, 0x02, 0x06, 0x04, 0x05, 0x15, 0x52, 0x62},
{"SST", 0x01, 0x03, 0x02, 0x06, 0x04, 0x05, 0x90, 0x20, 0x60},
{"ST", 0x01, 0x03, 0x02, 0x06, 0x04, 0x05, 0xAB, 0xD8, 0xC7},
};
static void atl1_init_flash_opcode(struct atl1_hw *hw)
{
if (hw->flash_vendor >= sizeof(flash_table) / sizeof(flash_table[0]))
hw->flash_vendor = 0; /* ATMEL */
/* Init OP table */
iowrite8(flash_table[hw->flash_vendor].cmd_program,
hw->hw_addr + REG_SPI_FLASH_OP_PROGRAM);
iowrite8(flash_table[hw->flash_vendor].cmd_sector_erase,
hw->hw_addr + REG_SPI_FLASH_OP_SC_ERASE);
iowrite8(flash_table[hw->flash_vendor].cmd_chip_erase,
hw->hw_addr + REG_SPI_FLASH_OP_CHIP_ERASE);
iowrite8(flash_table[hw->flash_vendor].cmd_rdid,
hw->hw_addr + REG_SPI_FLASH_OP_RDID);
iowrite8(flash_table[hw->flash_vendor].cmd_wren,
hw->hw_addr + REG_SPI_FLASH_OP_WREN);
iowrite8(flash_table[hw->flash_vendor].cmd_rdsr,
hw->hw_addr + REG_SPI_FLASH_OP_RDSR);
iowrite8(flash_table[hw->flash_vendor].cmd_wrsr,
hw->hw_addr + REG_SPI_FLASH_OP_WRSR);
iowrite8(flash_table[hw->flash_vendor].cmd_read,
hw->hw_addr + REG_SPI_FLASH_OP_READ);
}
/*
* Performs basic configuration of the adapter.
* hw - Struct containing variables accessed by shared code
* Assumes that the controller has previously been reset and is in a
* post-reset uninitialized state. Initializes multicast table,
* and Calls routines to setup link
* Leaves the transmit and receive units disabled and uninitialized.
*/
s32 atl1_init_hw(struct atl1_hw *hw)
{
u32 ret_val = 0;
/* Zero out the Multicast HASH table */
iowrite32(0, hw->hw_addr + REG_RX_HASH_TABLE);
/* clear the old settings from the multicast hash table */
iowrite32(0, (hw->hw_addr + REG_RX_HASH_TABLE) + (1 << 2));
atl1_init_flash_opcode(hw);
if (!hw->phy_configured) {
/* enable GPHY LinkChange Interrrupt */
ret_val = atl1_write_phy_reg(hw, 18, 0xC00);
if (ret_val)
return ret_val;
/* make PHY out of power-saving state */
ret_val = atl1_phy_leave_power_saving(hw);
if (ret_val)
return ret_val;
/* Call a subroutine to configure the link */
ret_val = atl1_setup_link(hw);
}
return ret_val;
}
/*
* Detects the current speed and duplex settings of the hardware.
* hw - Struct containing variables accessed by shared code
* speed - Speed of the connection
* duplex - Duplex setting of the connection
*/
s32 atl1_get_speed_and_duplex(struct atl1_hw *hw, u16 *speed, u16 *duplex)
{
s32 ret_val;
u16 phy_data;
/* ; --- Read PHY Specific Status Register (17) */
ret_val = atl1_read_phy_reg(hw, MII_AT001_PSSR, &phy_data);
if (ret_val)
return ret_val;
if (!(phy_data & MII_AT001_PSSR_SPD_DPLX_RESOLVED))
return ATL1_ERR_PHY_RES;
switch (phy_data & MII_AT001_PSSR_SPEED) {
case MII_AT001_PSSR_1000MBS:
*speed = SPEED_1000;
break;
case MII_AT001_PSSR_100MBS:
*speed = SPEED_100;
break;
case MII_AT001_PSSR_10MBS:
*speed = SPEED_10;
break;
default:
printk(KERN_DEBUG "%s: error getting speed\n",
atl1_driver_name);
return ATL1_ERR_PHY_SPEED;
break;
}
if (phy_data & MII_AT001_PSSR_DPLX)
*duplex = FULL_DUPLEX;
else
*duplex = HALF_DUPLEX;
return ATL1_SUCCESS;
}
void atl1_set_mac_addr(struct atl1_hw *hw)
{
u32 value;
/*
* 00-0B-6A-F6-00-DC
* 0: 6AF600DC 1: 000B
* low dword
*/
value = (((u32) hw->mac_addr[2]) << 24) |
(((u32) hw->mac_addr[3]) << 16) |
(((u32) hw->mac_addr[4]) << 8) | (((u32) hw->mac_addr[5]));
iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR);
/* high dword */
value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1]));
iowrite32(value, (hw->hw_addr + REG_MAC_STA_ADDR) + (1 << 2));
}
drivers/net/atl1/atl1_hw.h 0 → 100644
View file @ f3cc28c7
/*
* Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
* Copyright(c) 2006 Chris Snook <csnook@redhat.com>
* Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.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.
*
* There are a lot of defines in here that are unused and/or have cryptic
* names. Please leave them alone, as they're the closest thing we have
* to a spec from Attansic at present. *ahem* -- CHS
*/
#ifndef _ATL1_HW_H_
#define _ATL1_HW_H_
#include <linux/types.h>
#include <linux/mii.h>
struct atl1_adapter;
struct atl1_hw;
/* function prototypes needed by multiple files */
s32 atl1_phy_setup_autoneg_adv(struct atl1_hw *hw);
s32 atl1_write_phy_reg(struct atl1_hw *hw, u32 reg_addr, u16 phy_data);
s32 atl1_get_speed_and_duplex(struct atl1_hw *hw, u16 *speed, u16 *duplex);
s32 atl1_read_mac_addr(struct atl1_hw *hw);
s32 atl1_init_hw(struct atl1_hw *hw);
s32 atl1_get_speed_and_duplex(struct atl1_hw *hw, u16 *speed, u16 *duplex);
s32 atl1_set_speed_and_duplex(struct atl1_hw *hw, u16 speed, u16 duplex);
u32 atl1_hash_mc_addr(struct atl1_hw *hw, u8 *mc_addr);
void atl1_hash_set(struct atl1_hw *hw, u32 hash_value);
s32 atl1_read_phy_reg(struct atl1_hw *hw, u16 reg_addr, u16 *phy_data);
void atl1_set_mac_addr(struct atl1_hw *hw);
s32 atl1_phy_enter_power_saving(struct atl1_hw *hw);
s32 atl1_reset_hw(struct atl1_hw *hw);
void atl1_check_options(struct atl1_adapter *adapter);
/* register definitions */
#define REG_PCIE_CAP_LIST 0x58
#define REG_VPD_CAP 0x6C
#define VPD_CAP_ID_MASK 0xff
#define VPD_CAP_ID_SHIFT 0
#define VPD_CAP_NEXT_PTR_MASK 0xFF
#define VPD_CAP_NEXT_PTR_SHIFT 8
#define VPD_CAP_VPD_ADDR_MASK 0x7FFF
#define VPD_CAP_VPD_ADDR_SHIFT 16
#define VPD_CAP_VPD_FLAG 0x80000000
#define REG_VPD_DATA 0x70
#define REG_SPI_FLASH_CTRL 0x200
#define SPI_FLASH_CTRL_STS_NON_RDY 0x1
#define SPI_FLASH_CTRL_STS_WEN 0x2
#define SPI_FLASH_CTRL_STS_WPEN 0x80
#define SPI_FLASH_CTRL_DEV_STS_MASK 0xFF
#define SPI_FLASH_CTRL_DEV_STS_SHIFT 0
#define SPI_FLASH_CTRL_INS_MASK 0x7
#define SPI_FLASH_CTRL_INS_SHIFT 8
#define SPI_FLASH_CTRL_START 0x800
#define SPI_FLASH_CTRL_EN_VPD 0x2000
#define SPI_FLASH_CTRL_LDSTART 0x8000
#define SPI_FLASH_CTRL_CS_HI_MASK 0x3
#define SPI_FLASH_CTRL_CS_HI_SHIFT 16
#define SPI_FLASH_CTRL_CS_HOLD_MASK 0x3
#define SPI_FLASH_CTRL_CS_HOLD_SHIFT 18
#define SPI_FLASH_CTRL_CLK_LO_MASK 0x3
#define SPI_FLASH_CTRL_CLK_LO_SHIFT 20
#define SPI_FLASH_CTRL_CLK_HI_MASK 0x3
#define SPI_FLASH_CTRL_CLK_HI_SHIFT 22
#define SPI_FLASH_CTRL_CS_SETUP_MASK 0x3
#define SPI_FLASH_CTRL_CS_SETUP_SHIFT 24
#define SPI_FLASH_CTRL_EROM_PGSZ_MASK 0x3
#define SPI_FLASH_CTRL_EROM_PGSZ_SHIFT 26
#define SPI_FLASH_CTRL_WAIT_READY 0x10000000
#define REG_SPI_ADDR 0x204
#define REG_SPI_DATA 0x208
#define REG_SPI_FLASH_CONFIG 0x20C
#define SPI_FLASH_CONFIG_LD_ADDR_MASK 0xFFFFFF
#define SPI_FLASH_CONFIG_LD_ADDR_SHIFT 0
#define SPI_FLASH_CONFIG_VPD_ADDR_MASK 0x3
#define SPI_FLASH_CONFIG_VPD_ADDR_SHIFT 24
#define SPI_FLASH_CONFIG_LD_EXIST 0x4000000
#define REG_SPI_FLASH_OP_PROGRAM 0x210
#define REG_SPI_FLASH_OP_SC_ERASE 0x211
#define REG_SPI_FLASH_OP_CHIP_ERASE 0x212
#define REG_SPI_FLASH_OP_RDID 0x213
#define REG_SPI_FLASH_OP_WREN 0x214
#define REG_SPI_FLASH_OP_RDSR 0x215
#define REG_SPI_FLASH_OP_WRSR 0x216
#define REG_SPI_FLASH_OP_READ 0x217
#define REG_TWSI_CTRL 0x218
#define TWSI_CTRL_LD_OFFSET_MASK 0xFF
#define TWSI_CTRL_LD_OFFSET_SHIFT 0
#define TWSI_CTRL_LD_SLV_ADDR_MASK 0x7
#define TWSI_CTRL_LD_SLV_ADDR_SHIFT 8
#define TWSI_CTRL_SW_LDSTART 0x800
#define TWSI_CTRL_HW_LDSTART 0x1000
#define TWSI_CTRL_SMB_SLV_ADDR_MASK 0x7F
#define TWSI_CTRL_SMB_SLV_ADDR_SHIFT 15
#define TWSI_CTRL_LD_EXIST 0x400000
#define TWSI_CTRL_READ_FREQ_SEL_MASK 0x3
#define TWSI_CTRL_READ_FREQ_SEL_SHIFT 23
#define TWSI_CTRL_FREQ_SEL_100K 0
#define TWSI_CTRL_FREQ_SEL_200K 1
#define TWSI_CTRL_FREQ_SEL_300K 2
#define TWSI_CTRL_FREQ_SEL_400K 3
#define TWSI_CTRL_SMB_SLV_ADDR
#define TWSI_CTRL_WRITE_FREQ_SEL_MASK 0x3
#define TWSI_CTRL_WRITE_FREQ_SEL_SHIFT 24
#define REG_PCIE_DEV_MISC_CTRL 0x21C
#define PCIE_DEV_MISC_CTRL_EXT_PIPE 0x2
#define PCIE_DEV_MISC_CTRL_RETRY_BUFDIS 0x1
#define PCIE_DEV_MISC_CTRL_SPIROM_EXIST 0x4
#define PCIE_DEV_MISC_CTRL_SERDES_ENDIAN 0x8
#define PCIE_DEV_MISC_CTRL_SERDES_SEL_DIN 0x10
/* Selene Master Control Register */
#define REG_MASTER_CTRL 0x1400
#define MASTER_CTRL_SOFT_RST 0x1
#define MASTER_CTRL_MTIMER_EN 0x2
#define MASTER_CTRL_ITIMER_EN 0x4
#define MASTER_CTRL_MANUAL_INT 0x8
#define MASTER_CTRL_REV_NUM_SHIFT 16
#define MASTER_CTRL_REV_NUM_MASK 0xff
#define MASTER_CTRL_DEV_ID_SHIFT 24
#define MASTER_CTRL_DEV_ID_MASK 0xff
/* Timer Initial Value Register */
#define REG_MANUAL_TIMER_INIT 0x1404
/* IRQ ModeratorTimer Initial Value Register */
#define REG_IRQ_MODU_TIMER_INIT 0x1408
#define REG_GPHY_ENABLE 0x140C
/* IRQ Anti-Lost Timer Initial Value Register */
#define REG_CMBDISDMA_TIMER 0x140E
/* Block IDLE Status Register */
#define REG_IDLE_STATUS 0x1410
#define IDLE_STATUS_RXMAC 1
#define IDLE_STATUS_TXMAC 2
#define IDLE_STATUS_RXQ 4
#define IDLE_STATUS_TXQ 8
#define IDLE_STATUS_DMAR 0x10
#define IDLE_STATUS_DMAW 0x20
#define IDLE_STATUS_SMB 0x40
#define IDLE_STATUS_CMB 0x80
/* MDIO Control Register */
#define REG_MDIO_CTRL 0x1414
#define MDIO_DATA_MASK 0xffff
#define MDIO_DATA_SHIFT 0
#define MDIO_REG_ADDR_MASK 0x1f
#define MDIO_REG_ADDR_SHIFT 16
#define MDIO_RW 0x200000
#define MDIO_SUP_PREAMBLE 0x400000
#define MDIO_START 0x800000
#define MDIO_CLK_SEL_SHIFT 24
#define MDIO_CLK_25_4 0
#define MDIO_CLK_25_6 2
#define MDIO_CLK_25_8 3
#define MDIO_CLK_25_10 4
#define MDIO_CLK_25_14 5
#define MDIO_CLK_25_20 6
#define MDIO_CLK_25_28 7
#define MDIO_BUSY 0x8000000
#define MDIO_WAIT_TIMES 30
/* MII PHY Status Register */
#define REG_PHY_STATUS 0x1418
/* BIST Control and Status Register0 (for the Packet Memory) */
#define REG_BIST0_CTRL 0x141c
#define BIST0_NOW 0x1
#define BIST0_SRAM_FAIL 0x2
#define BIST0_FUSE_FLAG 0x4
#define REG_BIST1_CTRL 0x1420
#define BIST1_NOW 0x1
#define BIST1_SRAM_FAIL 0x2
#define BIST1_FUSE_FLAG 0x4
/* MAC Control Register */
#define REG_MAC_CTRL 0x1480
#define MAC_CTRL_TX_EN 1
#define MAC_CTRL_RX_EN 2
#define MAC_CTRL_TX_FLOW 4
#define MAC_CTRL_RX_FLOW 8
#define MAC_CTRL_LOOPBACK 0x10
#define MAC_CTRL_DUPLX 0x20
#define MAC_CTRL_ADD_CRC 0x40
#define MAC_CTRL_PAD 0x80
#define MAC_CTRL_LENCHK 0x100
#define MAC_CTRL_HUGE_EN 0x200
#define MAC_CTRL_PRMLEN_SHIFT 10
#define MAC_CTRL_PRMLEN_MASK 0xf
#define MAC_CTRL_RMV_VLAN 0x4000
#define MAC_CTRL_PROMIS_EN 0x8000
#define MAC_CTRL_TX_PAUSE 0x10000
#define MAC_CTRL_SCNT 0x20000
#define MAC_CTRL_SRST_TX 0x40000
#define MAC_CTRL_TX_SIMURST 0x80000
#define MAC_CTRL_SPEED_SHIFT 20
#define MAC_CTRL_SPEED_MASK 0x300000
#define MAC_CTRL_SPEED_1000 2
#define MAC_CTRL_SPEED_10_100 1
#define MAC_CTRL_DBG_TX_BKPRESURE 0x400000
#define MAC_CTRL_TX_HUGE 0x800000
#define MAC_CTRL_RX_CHKSUM_EN 0x1000000
#define MAC_CTRL_MC_ALL_EN 0x2000000
#define MAC_CTRL_BC_EN 0x4000000
#define MAC_CTRL_DBG 0x8000000
/* MAC IPG/IFG Control Register */
#define REG_MAC_IPG_IFG 0x1484
#define MAC_IPG_IFG_IPGT_SHIFT 0
#define MAC_IPG_IFG_IPGT_MASK 0x7f
#define MAC_IPG_IFG_MIFG_SHIFT 8
#define MAC_IPG_IFG_MIFG_MASK 0xff
#define MAC_IPG_IFG_IPGR1_SHIFT 16
#define MAC_IPG_IFG_IPGR1_MASK 0x7f
#define MAC_IPG_IFG_IPGR2_SHIFT 24
#define MAC_IPG_IFG_IPGR2_MASK 0x7f
/* MAC STATION ADDRESS */
#define REG_MAC_STA_ADDR 0x1488
/* Hash table for multicast address */
#define REG_RX_HASH_TABLE 0x1490
/* MAC Half-Duplex Control Register */
#define REG_MAC_HALF_DUPLX_CTRL 0x1498
#define MAC_HALF_DUPLX_CTRL_LCOL_SHIFT 0
#define MAC_HALF_DUPLX_CTRL_LCOL_MASK 0x3ff
#define MAC_HALF_DUPLX_CTRL_RETRY_SHIFT 12
#define MAC_HALF_DUPLX_CTRL_RETRY_MASK 0xf
#define MAC_HALF_DUPLX_CTRL_EXC_DEF_EN 0x10000
#define MAC_HALF_DUPLX_CTRL_NO_BACK_C 0x20000
#define MAC_HALF_DUPLX_CTRL_NO_BACK_P 0x40000
#define MAC_HALF_DUPLX_CTRL_ABEBE 0x80000
#define MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT 20
#define MAC_HALF_DUPLX_CTRL_ABEBT_MASK 0xf
#define MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT 24
#define MAC_HALF_DUPLX_CTRL_JAMIPG_MASK 0xf
/* Maximum Frame Length Control Register */
#define REG_MTU 0x149c
/* Wake-On-Lan control register */
#define REG_WOL_CTRL 0x14a0
#define WOL_PATTERN_EN 0x00000001
#define WOL_PATTERN_PME_EN 0x00000002
#define WOL_MAGIC_EN 0x00000004
#define WOL_MAGIC_PME_EN 0x00000008
#define WOL_LINK_CHG_EN 0x00000010
#define WOL_LINK_CHG_PME_EN 0x00000020
#define WOL_PATTERN_ST 0x00000100
#define WOL_MAGIC_ST 0x00000200
#define WOL_LINKCHG_ST 0x00000400
#define WOL_CLK_SWITCH_EN 0x00008000
#define WOL_PT0_EN 0x00010000
#define WOL_PT1_EN 0x00020000
#define WOL_PT2_EN 0x00040000
#define WOL_PT3_EN 0x00080000
#define WOL_PT4_EN 0x00100000
#define WOL_PT5_EN 0x00200000
#define WOL_PT6_EN 0x00400000
/* WOL Length ( 2 DWORD ) */
#define REG_WOL_PATTERN_LEN 0x14a4
#define WOL_PT_LEN_MASK 0x7f
#define WOL_PT0_LEN_SHIFT 0
#define WOL_PT1_LEN_SHIFT 8
#define WOL_PT2_LEN_SHIFT 16
#define WOL_PT3_LEN_SHIFT 24
#define WOL_PT4_LEN_SHIFT 0
#define WOL_PT5_LEN_SHIFT 8
#define WOL_PT6_LEN_SHIFT 16
/* Internal SRAM Partition Register */
#define REG_SRAM_RFD_ADDR 0x1500
#define REG_SRAM_RFD_LEN (REG_SRAM_RFD_ADDR+ 4)
#define REG_SRAM_RRD_ADDR (REG_SRAM_RFD_ADDR+ 8)
#define REG_SRAM_RRD_LEN (REG_SRAM_RFD_ADDR+12)
#define REG_SRAM_TPD_ADDR (REG_SRAM_RFD_ADDR+16)
#define REG_SRAM_TPD_LEN (REG_SRAM_RFD_ADDR+20)
#define REG_SRAM_TRD_ADDR (REG_SRAM_RFD_ADDR+24)
#define REG_SRAM_TRD_LEN (REG_SRAM_RFD_ADDR+28)
#define REG_SRAM_RXF_ADDR (REG_SRAM_RFD_ADDR+32)
#define REG_SRAM_RXF_LEN (REG_SRAM_RFD_ADDR+36)
#define REG_SRAM_TXF_ADDR (REG_SRAM_RFD_ADDR+40)
#define REG_SRAM_TXF_LEN (REG_SRAM_RFD_ADDR+44)
#define REG_SRAM_TCPH_PATH_ADDR (REG_SRAM_RFD_ADDR+48)
#define SRAM_TCPH_ADDR_MASK 0x0fff
#define SRAM_TCPH_ADDR_SHIFT 0
#define SRAM_PATH_ADDR_MASK 0x0fff
#define SRAM_PATH_ADDR_SHIFT 16
/* Load Ptr Register */
#define REG_LOAD_PTR (REG_SRAM_RFD_ADDR+52)
/* Descriptor Control register */
#define REG_DESC_BASE_ADDR_HI 0x1540
#define REG_DESC_RFD_ADDR_LO (REG_DESC_BASE_ADDR_HI+4)
#define REG_DESC_RRD_ADDR_LO (REG_DESC_BASE_ADDR_HI+8)
#define REG_DESC_TPD_ADDR_LO (REG_DESC_BASE_ADDR_HI+12)
#define REG_DESC_CMB_ADDR_LO (REG_DESC_BASE_ADDR_HI+16)
#define REG_DESC_SMB_ADDR_LO (REG_DESC_BASE_ADDR_HI+20)
#define REG_DESC_RFD_RRD_RING_SIZE (REG_DESC_BASE_ADDR_HI+24)
#define DESC_RFD_RING_SIZE_MASK 0x7ff
#define DESC_RFD_RING_SIZE_SHIFT 0
#define DESC_RRD_RING_SIZE_MASK 0x7ff
#define DESC_RRD_RING_SIZE_SHIFT 16
#define REG_DESC_TPD_RING_SIZE (REG_DESC_BASE_ADDR_HI+28)
#define DESC_TPD_RING_SIZE_MASK 0x3ff
#define DESC_TPD_RING_SIZE_SHIFT 0
/* TXQ Control Register */
#define REG_TXQ_CTRL 0x1580
#define TXQ_CTRL_TPD_BURST_NUM_SHIFT 0
#define TXQ_CTRL_TPD_BURST_NUM_MASK 0x1f
#define TXQ_CTRL_EN 0x20
#define TXQ_CTRL_ENH_MODE 0x40
#define TXQ_CTRL_TPD_FETCH_TH_SHIFT 8
#define TXQ_CTRL_TPD_FETCH_TH_MASK 0x3f
#define TXQ_CTRL_TXF_BURST_NUM_SHIFT 16
#define TXQ_CTRL_TXF_BURST_NUM_MASK 0xffff
/* Jumbo packet Threshold for task offload */
#define REG_TX_JUMBO_TASK_TH_TPD_IPG 0x1584
#define TX_JUMBO_TASK_TH_MASK 0x7ff
#define TX_JUMBO_TASK_TH_SHIFT 0
#define TX_TPD_MIN_IPG_MASK 0x1f
#define TX_TPD_MIN_IPG_SHIFT 16
/* RXQ Control Register */
#define REG_RXQ_CTRL 0x15a0
#define RXQ_CTRL_RFD_BURST_NUM_SHIFT 0
#define RXQ_CTRL_RFD_BURST_NUM_MASK 0xff
#define RXQ_CTRL_RRD_BURST_THRESH_SHIFT 8
#define RXQ_CTRL_RRD_BURST_THRESH_MASK 0xff
#define RXQ_CTRL_RFD_PREF_MIN_IPG_SHIFT 16
#define RXQ_CTRL_RFD_PREF_MIN_IPG_MASK 0x1f
#define RXQ_CTRL_CUT_THRU_EN 0x40000000
#define RXQ_CTRL_EN 0x80000000
/* Rx jumbo packet threshold and rrd retirement timer */
#define REG_RXQ_JMBOSZ_RRDTIM (REG_RXQ_CTRL+ 4)
#define RXQ_JMBOSZ_TH_MASK 0x7ff
#define RXQ_JMBOSZ_TH_SHIFT 0
#define RXQ_JMBO_LKAH_MASK 0xf
#define RXQ_JMBO_LKAH_SHIFT 11
#define RXQ_RRD_TIMER_MASK 0xffff
#define RXQ_RRD_TIMER_SHIFT 16
/* RFD flow control register */
#define REG_RXQ_RXF_PAUSE_THRESH (REG_RXQ_CTRL+ 8)
#define RXQ_RXF_PAUSE_TH_HI_SHIFT 16
#define RXQ_RXF_PAUSE_TH_HI_MASK 0xfff
#define RXQ_RXF_PAUSE_TH_LO_SHIFT 0
#define RXQ_RXF_PAUSE_TH_LO_MASK 0xfff
/* RRD flow control register */
#define REG_RXQ_RRD_PAUSE_THRESH (REG_RXQ_CTRL+12)
#define RXQ_RRD_PAUSE_TH_HI_SHIFT 0
#define RXQ_RRD_PAUSE_TH_HI_MASK 0xfff
#define RXQ_RRD_PAUSE_TH_LO_SHIFT 16
#define RXQ_RRD_PAUSE_TH_LO_MASK 0xfff
/* DMA Engine Control Register */
#define REG_DMA_CTRL 0x15c0
#define DMA_CTRL_DMAR_IN_ORDER 0x1
#define DMA_CTRL_DMAR_ENH_ORDER 0x2
#define DMA_CTRL_DMAR_OUT_ORDER 0x4
#define DMA_CTRL_RCB_VALUE 0x8
#define DMA_CTRL_DMAR_BURST_LEN_SHIFT 4
#define DMA_CTRL_DMAR_BURST_LEN_MASK 7
#define DMA_CTRL_DMAW_BURST_LEN_SHIFT 7
#define DMA_CTRL_DMAW_BURST_LEN_MASK 7
#define DMA_CTRL_DMAR_EN 0x400
#define DMA_CTRL_DMAW_EN 0x800
/* CMB/SMB Control Register */
#define REG_CSMB_CTRL 0x15d0
#define CSMB_CTRL_CMB_NOW 1
#define CSMB_CTRL_SMB_NOW 2
#define CSMB_CTRL_CMB_EN 4
#define CSMB_CTRL_SMB_EN 8
/* CMB DMA Write Threshold Register */
#define REG_CMB_WRITE_TH (REG_CSMB_CTRL+ 4)
#define CMB_RRD_TH_SHIFT 0
#define CMB_RRD_TH_MASK 0x7ff
#define CMB_TPD_TH_SHIFT 16
#define CMB_TPD_TH_MASK 0x7ff
/* RX/TX count-down timer to trigger CMB-write. 2us resolution. */
#define REG_CMB_WRITE_TIMER (REG_CSMB_CTRL+ 8)
#define CMB_RX_TM_SHIFT 0
#define CMB_RX_TM_MASK 0xffff
#define CMB_TX_TM_SHIFT 16
#define CMB_TX_TM_MASK 0xffff
/* Number of packet received since last CMB write */
#define REG_CMB_RX_PKT_CNT (REG_CSMB_CTRL+12)
/* Number of packet transmitted since last CMB write */
#define REG_CMB_TX_PKT_CNT (REG_CSMB_CTRL+16)
/* SMB auto DMA timer register */
#define REG_SMB_TIMER (REG_CSMB_CTRL+20)
/* Mailbox Register */
#define REG_MAILBOX 0x15f0
#define MB_RFD_PROD_INDX_SHIFT 0
#define MB_RFD_PROD_INDX_MASK 0x7ff
#define MB_RRD_CONS_INDX_SHIFT 11
#define MB_RRD_CONS_INDX_MASK 0x7ff
#define MB_TPD_PROD_INDX_SHIFT 22
#define MB_TPD_PROD_INDX_MASK 0x3ff
/* Interrupt Status Register */
#define REG_ISR 0x1600
#define ISR_SMB 1
#define ISR_TIMER 2
#define ISR_MANUAL 4
#define ISR_RXF_OV 8
#define ISR_RFD_UNRUN 0x10
#define ISR_RRD_OV 0x20
#define ISR_TXF_UNRUN 0x40
#define ISR_LINK 0x80
#define ISR_HOST_RFD_UNRUN 0x100
#define ISR_HOST_RRD_OV 0x200
#define ISR_DMAR_TO_RST 0x400
#define ISR_DMAW_TO_RST 0x800
#define ISR_GPHY 0x1000
#define ISR_RX_PKT 0x10000
#define ISR_TX_PKT 0x20000
#define ISR_TX_DMA 0x40000
#define ISR_RX_DMA 0x80000
#define ISR_CMB_RX 0x100000
#define ISR_CMB_TX 0x200000
#define ISR_MAC_RX 0x400000
#define ISR_MAC_TX 0x800000
#define ISR_UR_DETECTED 0x1000000
#define ISR_FERR_DETECTED 0x2000000
#define ISR_NFERR_DETECTED 0x4000000
#define ISR_CERR_DETECTED 0x8000000
#define ISR_PHY_LINKDOWN 0x10000000
#define ISR_DIS_SMB 0x20000000
#define ISR_DIS_DMA 0x40000000
#define ISR_DIS_INT 0x80000000
/* Interrupt Mask Register */
#define REG_IMR 0x1604
/* Normal Interrupt mask */
#define IMR_NORMAL_MASK (\
ISR_SMB |\
ISR_GPHY |\
ISR_PHY_LINKDOWN|\
ISR_DMAR_TO_RST |\
ISR_DMAW_TO_RST |\
ISR_CMB_TX |\
ISR_CMB_RX )
/* Debug Interrupt Mask (enable all interrupt) */
#define IMR_DEBUG_MASK (\
ISR_SMB |\
ISR_TIMER |\
ISR_MANUAL |\
ISR_RXF_OV |\
ISR_RFD_UNRUN |\
ISR_RRD_OV |\
ISR_TXF_UNRUN |\
ISR_LINK |\
ISR_CMB_TX |\
ISR_CMB_RX |\
ISR_RX_PKT |\
ISR_TX_PKT |\
ISR_MAC_RX |\
ISR_MAC_TX )
/* Interrupt Status Register */
#define REG_RFD_RRD_IDX 0x1800
#define REG_TPD_IDX 0x1804
/* MII definition */
/* PHY Common Register */
#define MII_AT001_CR 0x09
#define MII_AT001_SR 0x0A
#define MII_AT001_ESR 0x0F
#define MII_AT001_PSCR 0x10
#define MII_AT001_PSSR 0x11
/* PHY Control Register */
#define MII_CR_SPEED_SELECT_MSB 0x0040 /* bits 6,13: 10=1000, 01=100, 00=10 */
#define MII_CR_COLL_TEST_ENABLE 0x0080 /* Collision test enable */
#define MII_CR_FULL_DUPLEX 0x0100 /* FDX =1, half duplex =0 */
#define MII_CR_RESTART_AUTO_NEG 0x0200 /* Restart auto negotiation */
#define MII_CR_ISOLATE 0x0400 /* Isolate PHY from MII */
#define MII_CR_POWER_DOWN 0x0800 /* Power down */
#define MII_CR_AUTO_NEG_EN 0x1000 /* Auto Neg Enable */
#define MII_CR_SPEED_SELECT_LSB 0x2000 /* bits 6,13: 10=1000, 01=100, 00=10 */
#define MII_CR_LOOPBACK 0x4000 /* 0 = normal, 1 = loopback */
#define MII_CR_RESET 0x8000 /* 0 = normal, 1 = PHY reset */
#define MII_CR_SPEED_MASK 0x2040
#define MII_CR_SPEED_1000 0x0040
#define MII_CR_SPEED_100 0x2000
#define MII_CR_SPEED_10 0x0000
/* PHY Status Register */
#define MII_SR_EXTENDED_CAPS 0x0001 /* Extended register capabilities */
#define MII_SR_JABBER_DETECT 0x0002 /* Jabber Detected */
#define MII_SR_LINK_STATUS 0x0004 /* Link Status 1 = link */
#define MII_SR_AUTONEG_CAPS 0x0008 /* Auto Neg Capable */
#define MII_SR_REMOTE_FAULT 0x0010 /* Remote Fault Detect */
#define MII_SR_AUTONEG_COMPLETE 0x0020 /* Auto Neg Complete */
#define MII_SR_PREAMBLE_SUPPRESS 0x0040 /* Preamble may be suppressed */
#define MII_SR_EXTENDED_STATUS 0x0100 /* Ext. status info in Reg 0x0F */
#define MII_SR_100T2_HD_CAPS 0x0200 /* 100T2 Half Duplex Capable */
#define MII_SR_100T2_FD_CAPS 0x0400 /* 100T2 Full Duplex Capable */
#define MII_SR_10T_HD_CAPS 0x0800 /* 10T Half Duplex Capable */
#define MII_SR_10T_FD_CAPS 0x1000 /* 10T Full Duplex Capable */
#define MII_SR_100X_HD_CAPS 0x2000 /* 100X Half Duplex Capable */
#define MII_SR_100X_FD_CAPS 0x4000 /* 100X Full Duplex Capable */
#define MII_SR_100T4_CAPS 0x8000 /* 100T4 Capable */
/* Link partner ability register. */
#define MII_LPA_SLCT 0x001f /* Same as advertise selector */
#define MII_LPA_10HALF 0x0020 /* Can do 10mbps half-duplex */
#define MII_LPA_10FULL 0x0040 /* Can do 10mbps full-duplex */
#define MII_LPA_100HALF 0x0080 /* Can do 100mbps half-duplex */
#define MII_LPA_100FULL 0x0100 /* Can do 100mbps full-duplex */
#define MII_LPA_100BASE4 0x0200 /* 100BASE-T4 */
#define MII_LPA_PAUSE 0x0400 /* PAUSE */
#define MII_LPA_ASYPAUSE 0x0800 /* Asymmetrical PAUSE */
#define MII_LPA_RFAULT 0x2000 /* Link partner faulted */
#define MII_LPA_LPACK 0x4000 /* Link partner acked us */
#define MII_LPA_NPAGE 0x8000 /* Next page bit */
/* Autoneg Advertisement Register */
#define MII_AR_SELECTOR_FIELD 0x0001 /* indicates IEEE 802.3 CSMA/CD */
#define MII_AR_10T_HD_CAPS 0x0020 /* 10T Half Duplex Capable */
#define MII_AR_10T_FD_CAPS 0x0040 /* 10T Full Duplex Capable */
#define MII_AR_100TX_HD_CAPS 0x0080 /* 100TX Half Duplex Capable */
#define MII_AR_100TX_FD_CAPS 0x0100 /* 100TX Full Duplex Capable */
#define MII_AR_100T4_CAPS 0x0200 /* 100T4 Capable */
#define MII_AR_PAUSE 0x0400 /* Pause operation desired */
#define MII_AR_ASM_DIR 0x0800 /* Asymmetric Pause Direction bit */
#define MII_AR_REMOTE_FAULT 0x2000 /* Remote Fault detected */
#define MII_AR_NEXT_PAGE 0x8000 /* Next Page ability supported */
#define MII_AR_SPEED_MASK 0x01E0
#define MII_AR_DEFAULT_CAP_MASK 0x0DE0
/* 1000BASE-T Control Register */
#define MII_AT001_CR_1000T_HD_CAPS 0x0100 /* Advertise 1000T HD capability */
#define MII_AT001_CR_1000T_FD_CAPS 0x0200 /* Advertise 1000T FD capability */
#define MII_AT001_CR_1000T_REPEATER_DTE 0x0400 /* 1=Repeater/switch device port, 0=DTE device */
#define MII_AT001_CR_1000T_MS_VALUE 0x0800 /* 1=Configure PHY as Master, 0=Configure PHY as Slave */
#define MII_AT001_CR_1000T_MS_ENABLE 0x1000 /* 1=Master/Slave manual config value, 0=Automatic Master/Slave config */
#define MII_AT001_CR_1000T_TEST_MODE_NORMAL 0x0000 /* Normal Operation */
#define MII_AT001_CR_1000T_TEST_MODE_1 0x2000 /* Transmit Waveform test */
#define MII_AT001_CR_1000T_TEST_MODE_2 0x4000 /* Master Transmit Jitter test */
#define MII_AT001_CR_1000T_TEST_MODE_3 0x6000 /* Slave Transmit Jitter test */
#define MII_AT001_CR_1000T_TEST_MODE_4 0x8000 /* Transmitter Distortion test */
#define MII_AT001_CR_1000T_SPEED_MASK 0x0300
#define MII_AT001_CR_1000T_DEFAULT_CAP_MASK 0x0300
/* 1000BASE-T Status Register */
#define MII_AT001_SR_1000T_LP_HD_CAPS 0x0400 /* LP is 1000T HD capable */
#define MII_AT001_SR_1000T_LP_FD_CAPS 0x0800 /* LP is 1000T FD capable */
#define MII_AT001_SR_1000T_REMOTE_RX_STATUS 0x1000 /* Remote receiver OK */
#define MII_AT001_SR_1000T_LOCAL_RX_STATUS 0x2000 /* Local receiver OK */
#define MII_AT001_SR_1000T_MS_CONFIG_RES 0x4000 /* 1=Local TX is Master, 0=Slave */
#define MII_AT001_SR_1000T_MS_CONFIG_FAULT 0x8000 /* Master/Slave config fault */
#define MII_AT001_SR_1000T_REMOTE_RX_STATUS_SHIFT 12
#define MII_AT001_SR_1000T_LOCAL_RX_STATUS_SHIFT 13
/* Extended Status Register */
#define MII_AT001_ESR_1000T_HD_CAPS 0x1000 /* 1000T HD capable */
#define MII_AT001_ESR_1000T_FD_CAPS 0x2000 /* 1000T FD capable */
#define MII_AT001_ESR_1000X_HD_CAPS 0x4000 /* 1000X HD capable */
#define MII_AT001_ESR_1000X_FD_CAPS 0x8000 /* 1000X FD capable */
/* AT001 PHY Specific Control Register */
#define MII_AT001_PSCR_JABBER_DISABLE 0x0001 /* 1=Jabber Function disabled */
#define MII_AT001_PSCR_POLARITY_REVERSAL 0x0002 /* 1=Polarity Reversal enabled */
#define MII_AT001_PSCR_SQE_TEST 0x0004 /* 1=SQE Test enabled */
#define MII_AT001_PSCR_MAC_POWERDOWN 0x0008
#define MII_AT001_PSCR_CLK125_DISABLE 0x0010 /* 1=CLK125 low, 0=CLK125 toggling */
#define MII_AT001_PSCR_MDI_MANUAL_MODE 0x0000 /* MDI Crossover Mode bits 6:5, Manual MDI configuration */
#define MII_AT001_PSCR_MDIX_MANUAL_MODE 0x0020 /* Manual MDIX configuration */
#define MII_AT001_PSCR_AUTO_X_1000T 0x0040 /* 1000BASE-T: Auto crossover, 100BASE-TX/10BASE-T: MDI Mode */
#define MII_AT001_PSCR_AUTO_X_MODE 0x0060 /* Auto crossover enabled all speeds. */
#define MII_AT001_PSCR_10BT_EXT_DIST_ENABLE 0x0080 /* 1=Enable Extended 10BASE-T distance (Lower 10BASE-T RX Threshold), 0=Normal 10BASE-T RX Threshold */
#define MII_AT001_PSCR_MII_5BIT_ENABLE 0x0100 /* 1=5-Bit interface in 100BASE-TX, 0=MII interface in 100BASE-TX */
#define MII_AT001_PSCR_SCRAMBLER_DISABLE 0x0200 /* 1=Scrambler disable */
#define MII_AT001_PSCR_FORCE_LINK_GOOD 0x0400 /* 1=Force link good */
#define MII_AT001_PSCR_ASSERT_CRS_ON_TX 0x0800 /* 1=Assert CRS on Transmit */
#define MII_AT001_PSCR_POLARITY_REVERSAL_SHIFT 1
#define MII_AT001_PSCR_AUTO_X_MODE_SHIFT 5
#define MII_AT001_PSCR_10BT_EXT_DIST_ENABLE_SHIFT 7
/* AT001 PHY Specific Status Register */
#define MII_AT001_PSSR_SPD_DPLX_RESOLVED 0x0800 /* 1=Speed & Duplex resolved */
#define MII_AT001_PSSR_DPLX 0x2000 /* 1=Duplex 0=Half Duplex */
#define MII_AT001_PSSR_SPEED 0xC000 /* Speed, bits 14:15 */
#define MII_AT001_PSSR_10MBS 0x0000 /* 00=10Mbs */
#define MII_AT001_PSSR_100MBS 0x4000 /* 01=100Mbs */
#define MII_AT001_PSSR_1000MBS 0x8000 /* 10=1000Mbs */
/* PCI Command Register Bit Definitions */
#define PCI_REG_COMMAND 0x04 /* PCI Command Register */
#define CMD_IO_SPACE 0x0001
#define CMD_MEMORY_SPACE 0x0002
#define CMD_BUS_MASTER 0x0004
/* Wake Up Filter Control */
#define ATL1_WUFC_LNKC 0x00000001 /* Link Status Change Wakeup Enable */
#define ATL1_WUFC_MAG 0x00000002 /* Magic Packet Wakeup Enable */
#define ATL1_WUFC_EX 0x00000004 /* Directed Exact Wakeup Enable */
#define ATL1_WUFC_MC 0x00000008 /* Multicast Wakeup Enable */
#define ATL1_WUFC_BC 0x00000010 /* Broadcast Wakeup Enable */
/* Error Codes */
#define ATL1_SUCCESS 0
#define ATL1_ERR_EEPROM 1
#define ATL1_ERR_PHY 2
#define ATL1_ERR_CONFIG 3
#define ATL1_ERR_PARAM 4
#define ATL1_ERR_MAC_TYPE 5
#define ATL1_ERR_PHY_TYPE 6
#define ATL1_ERR_PHY_SPEED 7
#define ATL1_ERR_PHY_RES 8
#define SPEED_0 0xffff
#define SPEED_10 10
#define SPEED_100 100
#define SPEED_1000 1000
#define HALF_DUPLEX 1
#define FULL_DUPLEX 2
#define MEDIA_TYPE_AUTO_SENSOR 0
#define MEDIA_TYPE_1000M_FULL 1
#define MEDIA_TYPE_100M_FULL 2
#define MEDIA_TYPE_100M_HALF 3
#define MEDIA_TYPE_10M_FULL 4
#define MEDIA_TYPE_10M_HALF 5
#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
#define ADVERTISE_1000_FULL 0x0020
#define AUTONEG_ADVERTISE_SPEED_DEFAULT 0x002F /* Everything but 1000-Half */
#define AUTONEG_ADVERTISE_10_100_ALL 0x000F /* All 10/100 speeds */
#define AUTONEG_ADVERTISE_10_ALL 0x0003 /* 10Mbps Full & Half speeds */
/* The size (in bytes) of a ethernet packet */
#define ENET_HEADER_SIZE 14
#define MAXIMUM_ETHERNET_FRAME_SIZE 1518 /* with FCS */
#define MINIMUM_ETHERNET_FRAME_SIZE 64 /* with FCS */
#define ETHERNET_FCS_SIZE 4
#define MAX_JUMBO_FRAME_SIZE 0x2800
#define PHY_AUTO_NEG_TIME 45 /* 4.5 Seconds */
#define PHY_FORCE_TIME 20 /* 2.0 Seconds */
/* For checksumming , the sum of all words in the EEPROM should equal 0xBABA */
#define EEPROM_SUM 0xBABA
#define ATL1_EEDUMP_LEN 48
/* Statistics counters collected by the MAC */
struct stats_msg_block {
/* rx */
u32 rx_ok; /* The number of good packet received. */
u32 rx_bcast; /* The number of good broadcast packet received. */
u32 rx_mcast; /* The number of good multicast packet received. */
u32 rx_pause; /* The number of Pause packet received. */
u32 rx_ctrl; /* The number of Control packet received other than Pause frame. */
u32 rx_fcs_err; /* The number of packets with bad FCS. */
u32 rx_len_err; /* The number of packets with mismatch of length field and actual size. */
u32 rx_byte_cnt; /* The number of bytes of good packet received. FCS is NOT included. */
u32 rx_runt; /* The number of packets received that are less than 64 byte long and with good FCS. */
u32 rx_frag; /* The number of packets received that are less than 64 byte long and with bad FCS. */
u32 rx_sz_64; /* The number of good and bad packets received that are 64 byte long. */
u32 rx_sz_65_127; /* The number of good and bad packets received that are between 65 and 127-byte long. */
u32 rx_sz_128_255; /* The number of good and bad packets received that are between 128 and 255-byte long. */
u32 rx_sz_256_511; /* The number of good and bad packets received that are between 256 and 511-byte long. */
u32 rx_sz_512_1023; /* The number of good and bad packets received that are between 512 and 1023-byte long. */
u32 rx_sz_1024_1518; /* The number of good and bad packets received that are between 1024 and 1518-byte long. */
u32 rx_sz_1519_max; /* The number of good and bad packets received that are between 1519-byte and MTU. */
u32 rx_sz_ov; /* The number of good and bad packets received that are more than MTU size šC truncated by Selene. */
u32 rx_rxf_ov; /* The number of frame dropped due to occurrence of RX FIFO overflow. */
u32 rx_rrd_ov; /* The number of frame dropped due to occurrence of RRD overflow. */
u32 rx_align_err; /* Alignment Error */
u32 rx_bcast_byte_cnt; /* The byte count of broadcast packet received, excluding FCS. */
u32 rx_mcast_byte_cnt; /* The byte count of multicast packet received, excluding FCS. */
u32 rx_err_addr; /* The number of packets dropped due to address filtering. */
/* tx */
u32 tx_ok; /* The number of good packet transmitted. */
u32 tx_bcast; /* The number of good broadcast packet transmitted. */
u32 tx_mcast; /* The number of good multicast packet transmitted. */
u32 tx_pause; /* The number of Pause packet transmitted. */
u32 tx_exc_defer; /* The number of packets transmitted with excessive deferral. */
u32 tx_ctrl; /* The number of packets transmitted is a control frame, excluding Pause frame. */
u32 tx_defer; /* The number of packets transmitted that is deferred. */
u32 tx_byte_cnt; /* The number of bytes of data transmitted. FCS is NOT included. */
u32 tx_sz_64; /* The number of good and bad packets transmitted that are 64 byte long. */
u32 tx_sz_65_127; /* The number of good and bad packets transmitted that are between 65 and 127-byte long. */
u32 tx_sz_128_255; /* The number of good and bad packets transmitted that are between 128 and 255-byte long. */
u32 tx_sz_256_511; /* The number of good and bad packets transmitted that are between 256 and 511-byte long. */
u32 tx_sz_512_1023; /* The number of good and bad packets transmitted that are between 512 and 1023-byte long. */
u32 tx_sz_1024_1518; /* The number of good and bad packets transmitted that are between 1024 and 1518-byte long. */
u32 tx_sz_1519_max; /* The number of good and bad packets transmitted that are between 1519-byte and MTU. */
u32 tx_1_col; /* The number of packets subsequently transmitted successfully with a single prior collision. */
u32 tx_2_col; /* The number of packets subsequently transmitted successfully with multiple prior collisions. */
u32 tx_late_col; /* The number of packets transmitted with late collisions. */
u32 tx_abort_col; /* The number of transmit packets aborted due to excessive collisions. */
u32 tx_underrun; /* The number of transmit packets aborted due to transmit FIFO underrun, or TRD FIFO underrun */
u32 tx_rd_eop; /* The number of times that read beyond the EOP into the next frame area when TRD was not written timely */
u32 tx_len_err; /* The number of transmit packets with length field does NOT match the actual frame size. */
u32 tx_trunc; /* The number of transmit packets truncated due to size exceeding MTU. */
u32 tx_bcast_byte; /* The byte count of broadcast packet transmitted, excluding FCS. */
u32 tx_mcast_byte; /* The byte count of multicast packet transmitted, excluding FCS. */
u32 smb_updated; /* 1: SMB Updated. This is used by software as the indication of the statistics update.
* Software should clear this bit as soon as retrieving the statistics information. */
};
/* Coalescing Message Block */
struct coals_msg_block {
u32 int_stats; /* interrupt status */
u16 rrd_prod_idx; /* TRD Producer Index. */
u16 rfd_cons_idx; /* RFD Consumer Index. */
u16 update; /* Selene sets this bit every time it DMA the CMB to host memory.
* Software supposes to clear this bit when CMB information is processed. */
u16 tpd_cons_idx; /* TPD Consumer Index. */
};
/* RRD descriptor */
struct rx_return_desc {
u8 num_buf; /* Number of RFD buffers used by the received packet */
u8 resved;
u16 buf_indx; /* RFD Index of the first buffer */
union {
u32 valid;
struct {
u16 rx_chksum;
u16 pkt_size;
} xsum_sz;
} xsz;
u16 pkt_flg; /* Packet flags */
u16 err_flg; /* Error flags */
u16 resved2;
u16 vlan_tag; /* VLAN TAG */
};
#define PACKET_FLAG_ETH_TYPE 0x0080
#define PACKET_FLAG_VLAN_INS 0x0100
#define PACKET_FLAG_ERR 0x0200
#define PACKET_FLAG_IPV4 0x0400
#define PACKET_FLAG_UDP 0x0800
#define PACKET_FLAG_TCP 0x1000
#define PACKET_FLAG_BCAST 0x2000
#define PACKET_FLAG_MCAST 0x4000
#define PACKET_FLAG_PAUSE 0x8000
#define ERR_FLAG_CRC 0x0001
#define ERR_FLAG_CODE 0x0002
#define ERR_FLAG_DRIBBLE 0x0004
#define ERR_FLAG_RUNT 0x0008
#define ERR_FLAG_OV 0x0010
#define ERR_FLAG_TRUNC 0x0020
#define ERR_FLAG_IP_CHKSUM 0x0040
#define ERR_FLAG_L4_CHKSUM 0x0080
#define ERR_FLAG_LEN 0x0100
#define ERR_FLAG_DES_ADDR 0x0200
/* RFD descriptor */
struct rx_free_desc {
__le64 buffer_addr; /* Address of the descriptor's data buffer */
__le16 buf_len; /* Size of the receive buffer in host memory, in byte */
u16 coalese; /* Update consumer index to host after the reception of this frame */
/* __attribute__ ((packed)) is required */
} __attribute__ ((packed));
/* tsopu defines */
#define TSO_PARAM_BUFLEN_MASK 0x3FFF
#define TSO_PARAM_BUFLEN_SHIFT 0
#define TSO_PARAM_DMAINT_MASK 0x0001
#define TSO_PARAM_DMAINT_SHIFT 14
#define TSO_PARAM_PKTNT_MASK 0x0001
#define TSO_PARAM_PKTINT_SHIFT 15
#define TSO_PARAM_VLANTAG_MASK 0xFFFF
#define TSO_PARAM_VLAN_SHIFT 16
/* tsopl defines */
#define TSO_PARAM_EOP_MASK 0x0001
#define TSO_PARAM_EOP_SHIFT 0
#define TSO_PARAM_COALESCE_MASK 0x0001
#define TSO_PARAM_COALESCE_SHIFT 1
#define TSO_PARAM_INSVLAG_MASK 0x0001
#define TSO_PARAM_INSVLAG_SHIFT 2
#define TSO_PARAM_CUSTOMCKSUM_MASK 0x0001
#define TSO_PARAM_CUSTOMCKSUM_SHIFT 3
#define TSO_PARAM_SEGMENT_MASK 0x0001
#define TSO_PARAM_SEGMENT_SHIFT 4
#define TSO_PARAM_IPCKSUM_MASK 0x0001
#define TSO_PARAM_IPCKSUM_SHIFT 5
#define TSO_PARAM_TCPCKSUM_MASK 0x0001
#define TSO_PARAM_TCPCKSUM_SHIFT 6
#define TSO_PARAM_UDPCKSUM_MASK 0x0001
#define TSO_PARAM_UDPCKSUM_SHIFT 7
#define TSO_PARAM_VLANTAGGED_MASK 0x0001
#define TSO_PARAM_VLANTAGGED_SHIFT 8
#define TSO_PARAM_ETHTYPE_MASK 0x0001
#define TSO_PARAM_ETHTYPE_SHIFT 9
#define TSO_PARAM_IPHL_MASK 0x000F
#define TSO_PARAM_IPHL_SHIFT 10
#define TSO_PARAM_TCPHDRLEN_MASK 0x000F
#define TSO_PARAM_TCPHDRLEN_SHIFT 14
#define TSO_PARAM_HDRFLAG_MASK 0x0001
#define TSO_PARAM_HDRFLAG_SHIFT 18
#define TSO_PARAM_MSS_MASK 0x1FFF
#define TSO_PARAM_MSS_SHIFT 19
/* csumpu defines */
#define CSUM_PARAM_BUFLEN_MASK 0x3FFF
#define CSUM_PARAM_BUFLEN_SHIFT 0
#define CSUM_PARAM_DMAINT_MASK 0x0001
#define CSUM_PARAM_DMAINT_SHIFT 14
#define CSUM_PARAM_PKTINT_MASK 0x0001
#define CSUM_PARAM_PKTINT_SHIFT 15
#define CSUM_PARAM_VALANTAG_MASK 0xFFFF
#define CSUM_PARAM_VALAN_SHIFT 16
/* csumpl defines*/
#define CSUM_PARAM_EOP_MASK 0x0001
#define CSUM_PARAM_EOP_SHIFT 0
#define CSUM_PARAM_COALESCE_MASK 0x0001
#define CSUM_PARAM_COALESCE_SHIFT 1
#define CSUM_PARAM_INSVLAG_MASK 0x0001
#define CSUM_PARAM_INSVLAG_SHIFT 2
#define CSUM_PARAM_CUSTOMCKSUM_MASK 0x0001
#define CSUM_PARAM_CUSTOMCKSUM_SHIFT 3
#define CSUM_PARAM_SEGMENT_MASK 0x0001
#define CSUM_PARAM_SEGMENT_SHIFT 4
#define CSUM_PARAM_IPCKSUM_MASK 0x0001
#define CSUM_PARAM_IPCKSUM_SHIFT 5
#define CSUM_PARAM_TCPCKSUM_MASK 0x0001
#define CSUM_PARAM_TCPCKSUM_SHIFT 6
#define CSUM_PARAM_UDPCKSUM_MASK 0x0001
#define CSUM_PARAM_UDPCKSUM_SHIFT 7
#define CSUM_PARAM_VLANTAGGED_MASK 0x0001
#define CSUM_PARAM_VLANTAGGED_SHIFT 8
#define CSUM_PARAM_ETHTYPE_MASK 0x0001
#define CSUM_PARAM_ETHTYPE_SHIFT 9
#define CSUM_PARAM_IPHL_MASK 0x000F
#define CSUM_PARAM_IPHL_SHIFT 10
#define CSUM_PARAM_PLOADOFFSET_MASK 0x00FF
#define CSUM_PARAM_PLOADOFFSET_SHIFT 16
#define CSUM_PARAM_XSUMOFFSET_MASK 0x00FF
#define CSUM_PARAM_XSUMOFFSET_SHIFT 24
/* TPD descriptor */
struct tso_param {
/* The order of these declarations is important -- don't change it */
u32 tsopu; /* tso_param upper word */
u32 tsopl; /* tso_param lower word */
};
struct csum_param {
/* The order of these declarations is important -- don't change it */
u32 csumpu; /* csum_param upper word */
u32 csumpl; /* csum_param lower word */
};
union tpd_descr {
u64 data;
struct csum_param csum;
struct tso_param tso;
};
struct tx_packet_desc {
__le64 buffer_addr;
union tpd_descr desc;
};
/* DMA Order Settings */
enum atl1_dma_order {
atl1_dma_ord_in = 1,
atl1_dma_ord_enh = 2,
atl1_dma_ord_out = 4
};
enum atl1_dma_rcb {
atl1_rcb_64 = 0,
atl1_rcb_128 = 1
};
enum atl1_dma_req_block {
atl1_dma_req_128 = 0,
atl1_dma_req_256 = 1,
atl1_dma_req_512 = 2,
atl1_dam_req_1024 = 3,
atl1_dam_req_2048 = 4,
atl1_dma_req_4096 = 5
};
struct atl1_spi_flash_dev {
const char *manu_name; /* manufacturer id */
/* op-code */
u8 cmd_wrsr;
u8 cmd_read;
u8 cmd_program;
u8 cmd_wren;
u8 cmd_wrdi;
u8 cmd_rdsr;
u8 cmd_rdid;
u8 cmd_sector_erase;
u8 cmd_chip_erase;
};
#endif /* _ATL1_HW_H_ */
drivers/net/atl1/atl1_main.c 0 → 100644
View file @ f3cc28c7
/*
* Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
* Copyright(c) 2006 Chris Snook <csnook@redhat.com>
* Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.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.
*
* The full GNU General Public License is included in this distribution in the
* file called COPYING.
*
* Contact Information:
* Xiong Huang <xiong_huang@attansic.com>
* Attansic Technology Corp. 3F 147, Xianzheng 9th Road, Zhubei,
* Xinzhu 302, TAIWAN, REPUBLIC OF CHINA
*
* Chris Snook <csnook@redhat.com>
* Jay Cliburn <jcliburn@gmail.com>
*
* This version is adapted from the Attansic reference driver for
* inclusion in the Linux kernel. It is currently under heavy development.
* A very incomplete list of things that need to be dealt with:
*
* TODO:
* Fix TSO; tx performance is horrible with TSO enabled.
* Wake on LAN.
* Add more ethtool functions, including set ring parameters.
* Fix abstruse irq enable/disable condition described here:
* http://marc.theaimsgroup.com/?l=linux-netdev&m=116398508500553&w=2
*
* NEEDS TESTING:
* VLAN
* multicast
* promiscuous mode
* interrupt coalescing
* SMP torture testing
*/
#include <linux/types.h>
#include <linux/netdevice.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/skbuff.h>
#include <linux/etherdevice.h>
#include <linux/if_vlan.h>
#include <linux/irqreturn.h>
#include <linux/workqueue.h>
#include <linux/timer.h>
#include <linux/jiffies.h>
#include <linux/hardirq.h>
#include <linux/interrupt.h>
#include <linux/irqflags.h>
#include <linux/dma-mapping.h>
#include <linux/net.h>
#include <linux/pm.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/compiler.h>
#include <linux/delay.h>
#include <linux/mii.h>
#include <net/checksum.h>
#include <asm/atomic.h>
#include <asm/byteorder.h>
#include "atl1.h"
#define RUN_REALTIME 0
#define DRIVER_VERSION "2.0.6"
char atl1_driver_name[] = "atl1";
static const char atl1_driver_string[] = "Attansic L1 Ethernet Network Driver";
static const char atl1_copyright[] = "Copyright(c) 2005-2006 Attansic Corporation.";
char atl1_driver_version[] = DRIVER_VERSION;
MODULE_AUTHOR
("Attansic Corporation <xiong_huang@attansic.com>, Chris Snook <csnook@redhat.com>, Jay Cliburn <jcliburn@gmail.com>");
MODULE_DESCRIPTION("Attansic 1000M Ethernet Network Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRIVER_VERSION);
/*
* atl1_pci_tbl - PCI Device ID Table
*/
static const struct pci_device_id atl1_pci_tbl[] = {
{PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, 0x1048)},
/* required last entry */
{0,}
};
MODULE_DEVICE_TABLE(pci, atl1_pci_tbl);
/*
* atl1_sw_init - Initialize general software structures (struct atl1_adapter)
* @adapter: board private structure to initialize
*
* atl1_sw_init initializes the Adapter private data structure.
* Fields are initialized based on PCI device information and
* OS network device settings (MTU size).
*/
static int __devinit atl1_sw_init(struct atl1_adapter *adapter)
{
struct atl1_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
/* PCI config space info */
pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);
hw->max_frame_size = netdev->mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE;
adapter->wol = 0;
adapter->rx_buffer_len = (hw->max_frame_size + 7) & ~7;
adapter->ict = 50000; /* 100ms */
adapter->link_speed = SPEED_0; /* hardware init */
adapter->link_duplex = FULL_DUPLEX;
hw->phy_configured = false;
hw->preamble_len = 7;
hw->ipgt = 0x60;
hw->min_ifg = 0x50;
hw->ipgr1 = 0x40;
hw->ipgr2 = 0x60;
hw->max_retry = 0xf;
hw->lcol = 0x37;
hw->jam_ipg = 7;
hw->rfd_burst = 8;
hw->rrd_burst = 8;
hw->rfd_fetch_gap = 1;
hw->rx_jumbo_th = adapter->rx_buffer_len / 8;
hw->rx_jumbo_lkah = 1;
hw->rrd_ret_timer = 16;
hw->tpd_burst = 4;
hw->tpd_fetch_th = 16;
hw->txf_burst = 0x100;
hw->tx_jumbo_task_th = (hw->max_frame_size + 7) >> 3;
hw->tpd_fetch_gap = 1;
hw->rcb_value = atl1_rcb_64;
hw->dma_ord = atl1_dma_ord_enh;
hw->dmar_block = atl1_dma_req_256;
hw->dmaw_block = atl1_dma_req_256;
hw->cmb_rrd = 4;
hw->cmb_tpd = 4;
hw->cmb_rx_timer = 1; /* about 2us */
hw->cmb_tx_timer = 1; /* about 2us */
hw->smb_timer = 100000; /* about 200ms */
atomic_set(&adapter->irq_sem, 0);
spin_lock_init(&adapter->lock);
spin_lock_init(&adapter->mb_lock);
return 0;
}
/*
* atl1_setup_mem_resources - allocate Tx / RX descriptor resources
* @adapter: board private structure
*
* Return 0 on success, negative on failure
*/
s32 atl1_setup_ring_resources(struct atl1_adapter *adapter)
{
struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
struct atl1_ring_header *ring_header = &adapter->ring_header;
struct pci_dev *pdev = adapter->pdev;
int size;
u8 offset = 0;
size = sizeof(struct atl1_buffer) * (tpd_ring->count + rfd_ring->count);
tpd_ring->buffer_info = kzalloc(size, GFP_KERNEL);
if (unlikely(!tpd_ring->buffer_info)) {
printk(KERN_WARNING "%s: kzalloc failed , size = D%d\n",
atl1_driver_name, size);
goto err_nomem;
}
rfd_ring->buffer_info =
(struct atl1_buffer *)(tpd_ring->buffer_info + tpd_ring->count);
/* real ring DMA buffer */
ring_header->size = size = sizeof(struct tx_packet_desc) *
tpd_ring->count
+ sizeof(struct rx_free_desc) * rfd_ring->count
+ sizeof(struct rx_return_desc) * rrd_ring->count
+ sizeof(struct coals_msg_block)
+ sizeof(struct stats_msg_block)
+ 40; /* "40: for 8 bytes align" huh? -- CHS */
ring_header->desc = pci_alloc_consistent(pdev, ring_header->size,
&ring_header->dma);
if (unlikely(!ring_header->desc)) {
printk(KERN_WARNING
"%s: pci_alloc_consistent failed, size = D%d\n",
atl1_driver_name, size);
goto err_nomem;
}
memset(ring_header->desc, 0, ring_header->size);
/* init TPD ring */
tpd_ring->dma = ring_header->dma;
offset = (tpd_ring->dma & 0x7) ? (8 - (ring_header->dma & 0x7)) : 0;
tpd_ring->dma += offset;
tpd_ring->desc = (u8 *) ring_header->desc + offset;
tpd_ring->size = sizeof(struct tx_packet_desc) * tpd_ring->count;
atomic_set(&tpd_ring->next_to_use, 0);
atomic_set(&tpd_ring->next_to_clean, 0);
/* init RFD ring */
rfd_ring->dma = tpd_ring->dma + tpd_ring->size;
offset = (rfd_ring->dma & 0x7) ? (8 - (rfd_ring->dma & 0x7)) : 0;
rfd_ring->dma += offset;
rfd_ring->desc = (u8 *) tpd_ring->desc + (tpd_ring->size + offset);
rfd_ring->size = sizeof(struct rx_free_desc) * rfd_ring->count;
rfd_ring->next_to_clean = 0;
/* rfd_ring->next_to_use = rfd_ring->count - 1; */
atomic_set(&rfd_ring->next_to_use, 0);
/* init RRD ring */
rrd_ring->dma = rfd_ring->dma + rfd_ring->size;
offset = (rrd_ring->dma & 0x7) ? (8 - (rrd_ring->dma & 0x7)) : 0;
rrd_ring->dma += offset;
rrd_ring->desc = (u8 *) rfd_ring->desc + (rfd_ring->size + offset);
rrd_ring->size = sizeof(struct rx_return_desc) * rrd_ring->count;
rrd_ring->next_to_use = 0;
atomic_set(&rrd_ring->next_to_clean, 0);
/* init CMB */
adapter->cmb.dma = rrd_ring->dma + rrd_ring->size;
offset = (adapter->cmb.dma & 0x7) ? (8 - (adapter->cmb.dma & 0x7)) : 0;
adapter->cmb.dma += offset;
adapter->cmb.cmb =
(struct coals_msg_block *) ((u8 *) rrd_ring->desc +
(rrd_ring->size + offset));
/* init SMB */
adapter->smb.dma = adapter->cmb.dma + sizeof(struct coals_msg_block);
offset = (adapter->smb.dma & 0x7) ? (8 - (adapter->smb.dma & 0x7)) : 0;
adapter->smb.dma += offset;
adapter->smb.smb = (struct stats_msg_block *)
((u8 *) adapter->cmb.cmb + (sizeof(struct coals_msg_block) + offset));
return ATL1_SUCCESS;
err_nomem:
kfree(tpd_ring->buffer_info);
return -ENOMEM;
}
/*
* atl1_irq_enable - Enable default interrupt generation settings
* @adapter: board private structure
*/
static void atl1_irq_enable(struct atl1_adapter *adapter)
{
if (likely(!atomic_dec_and_test(&adapter->irq_sem)))
iowrite32(IMR_NORMAL_MASK, adapter->hw.hw_addr + REG_IMR);
}
static void atl1_clear_phy_int(struct atl1_adapter *adapter)
{
u16 phy_data;
unsigned long flags;
spin_lock_irqsave(&adapter->lock, flags);
atl1_read_phy_reg(&adapter->hw, 19, &phy_data);
spin_unlock_irqrestore(&adapter->lock, flags);
}
static void atl1_inc_smb(struct atl1_adapter *adapter)
{
struct stats_msg_block *smb = adapter->smb.smb;
/* Fill out the OS statistics structure */
adapter->soft_stats.rx_packets += smb->rx_ok;
adapter->soft_stats.tx_packets += smb->tx_ok;
adapter->soft_stats.rx_bytes += smb->rx_byte_cnt;
adapter->soft_stats.tx_bytes += smb->tx_byte_cnt;
adapter->soft_stats.multicast += smb->rx_mcast;
adapter->soft_stats.collisions += (smb->tx_1_col +
smb->tx_2_col * 2 +
smb->tx_late_col +
smb->tx_abort_col *
adapter->hw.max_retry);
/* Rx Errors */
adapter->soft_stats.rx_errors += (smb->rx_frag +
smb->rx_fcs_err +
smb->rx_len_err +
smb->rx_sz_ov +
smb->rx_rxf_ov +
smb->rx_rrd_ov + smb->rx_align_err);
adapter->soft_stats.rx_fifo_errors += smb->rx_rxf_ov;
adapter->soft_stats.rx_length_errors += smb->rx_len_err;
adapter->soft_stats.rx_crc_errors += smb->rx_fcs_err;
adapter->soft_stats.rx_frame_errors += smb->rx_align_err;
adapter->soft_stats.rx_missed_errors += (smb->rx_rrd_ov +
smb->rx_rxf_ov);
adapter->soft_stats.rx_pause += smb->rx_pause;
adapter->soft_stats.rx_rrd_ov += smb->rx_rrd_ov;
adapter->soft_stats.rx_trunc += smb->rx_sz_ov;
/* Tx Errors */
adapter->soft_stats.tx_errors += (smb->tx_late_col +
smb->tx_abort_col +
smb->tx_underrun + smb->tx_trunc);
adapter->soft_stats.tx_fifo_errors += smb->tx_underrun;
adapter->soft_stats.tx_aborted_errors += smb->tx_abort_col;
adapter->soft_stats.tx_window_errors += smb->tx_late_col;
adapter->soft_stats.excecol += smb->tx_abort_col;
adapter->soft_stats.deffer += smb->tx_defer;
adapter->soft_stats.scc += smb->tx_1_col;
adapter->soft_stats.mcc += smb->tx_2_col;
adapter->soft_stats.latecol += smb->tx_late_col;
adapter->soft_stats.tx_underun += smb->tx_underrun;
adapter->soft_stats.tx_trunc += smb->tx_trunc;
adapter->soft_stats.tx_pause += smb->tx_pause;
adapter->net_stats.rx_packets = adapter->soft_stats.rx_packets;
adapter->net_stats.tx_packets = adapter->soft_stats.tx_packets;
adapter->net_stats.rx_bytes = adapter->soft_stats.rx_bytes;
adapter->net_stats.tx_bytes = adapter->soft_stats.tx_bytes;
adapter->net_stats.multicast = adapter->soft_stats.multicast;
adapter->net_stats.collisions = adapter->soft_stats.collisions;
adapter->net_stats.rx_errors = adapter->soft_stats.rx_errors;
adapter->net_stats.rx_over_errors =
adapter->soft_stats.rx_missed_errors;
adapter->net_stats.rx_length_errors =
adapter->soft_stats.rx_length_errors;
adapter->net_stats.rx_crc_errors = adapter->soft_stats.rx_crc_errors;
adapter->net_stats.rx_frame_errors =
adapter->soft_stats.rx_frame_errors;
adapter->net_stats.rx_fifo_errors = adapter->soft_stats.rx_fifo_errors;
adapter->net_stats.rx_missed_errors =
adapter->soft_stats.rx_missed_errors;
adapter->net_stats.tx_errors = adapter->soft_stats.tx_errors;
adapter->net_stats.tx_fifo_errors = adapter->soft_stats.tx_fifo_errors;
adapter->net_stats.tx_aborted_errors =
adapter->soft_stats.tx_aborted_errors;
adapter->net_stats.tx_window_errors =
adapter->soft_stats.tx_window_errors;
adapter->net_stats.tx_carrier_errors =
adapter->soft_stats.tx_carrier_errors;
}
static void atl1_rx_checksum(struct atl1_adapter *adapter,
struct rx_return_desc *rrd,
struct sk_buff *skb)
{
skb->ip_summed = CHECKSUM_NONE;
if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) {
if (rrd->err_flg & (ERR_FLAG_CRC | ERR_FLAG_TRUNC |
ERR_FLAG_CODE | ERR_FLAG_OV)) {
adapter->hw_csum_err++;
printk(KERN_DEBUG "%s: rx checksum error\n",
atl1_driver_name);
return;
}
}
/* not IPv4 */
if (!(rrd->pkt_flg & PACKET_FLAG_IPV4))
/* checksum is invalid, but it's not an IPv4 pkt, so ok */
return;
/* IPv4 packet */
if (likely(!(rrd->err_flg &
(ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM)))) {
skb->ip_summed = CHECKSUM_UNNECESSARY;
adapter->hw_csum_good++;
return;
}
/* IPv4, but hardware thinks its checksum is wrong */
printk(KERN_DEBUG "%s: hw csum wrong pkt_flag:%x, err_flag:%x\n",
atl1_driver_name, rrd->pkt_flg, rrd->err_flg);
skb->ip_summed = CHECKSUM_COMPLETE;
skb->csum = htons(rrd->xsz.xsum_sz.rx_chksum);
adapter->hw_csum_err++;
return;
}
/*
* atl1_alloc_rx_buffers - Replace used receive buffers
* @adapter: address of board private structure
*/
static u16 atl1_alloc_rx_buffers(struct atl1_adapter *adapter)
{
struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
struct page *page;
unsigned long offset;
struct atl1_buffer *buffer_info, *next_info;
struct sk_buff *skb;
u16 num_alloc = 0;
u16 rfd_next_to_use, next_next;
struct rx_free_desc *rfd_desc;
next_next = rfd_next_to_use = atomic_read(&rfd_ring->next_to_use);
if (++next_next == rfd_ring->count)
next_next = 0;
buffer_info = &rfd_ring->buffer_info[rfd_next_to_use];
next_info = &rfd_ring->buffer_info[next_next];
while (!buffer_info->alloced && !next_info->alloced) {
if (buffer_info->skb) {
buffer_info->alloced = 1;
goto next;
}
rfd_desc = ATL1_RFD_DESC(rfd_ring, rfd_next_to_use);
skb = dev_alloc_skb(adapter->rx_buffer_len + NET_IP_ALIGN);
if (unlikely(!skb)) { /* Better luck next round */
adapter->net_stats.rx_dropped++;
break;
}
/*
* Make buffer alignment 2 beyond a 16 byte boundary
* this will result in a 16 byte aligned IP header after
* the 14 byte MAC header is removed
*/
skb_reserve(skb, NET_IP_ALIGN);
skb->dev = netdev;
buffer_info->alloced = 1;
buffer_info->skb = skb;
buffer_info->length = (u16) adapter->rx_buffer_len;
page = virt_to_page(skb->data);
offset = (unsigned long)skb->data & ~PAGE_MASK;
buffer_info->dma = pci_map_page(pdev, page, offset,
adapter->rx_buffer_len,
PCI_DMA_FROMDEVICE);
rfd_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
rfd_desc->buf_len = cpu_to_le16(adapter->rx_buffer_len);
rfd_desc->coalese = 0;
next:
rfd_next_to_use = next_next;
if (unlikely(++next_next == rfd_ring->count))
next_next = 0;
buffer_info = &rfd_ring->buffer_info[rfd_next_to_use];
next_info = &rfd_ring->buffer_info[next_next];
num_alloc++;
}
if (num_alloc) {
/*
* Force memory writes to complete before letting h/w
* know there are new descriptors to fetch. (Only
* applicable for weak-ordered memory model archs,
* such as IA-64).
*/
wmb();
atomic_set(&rfd_ring->next_to_use, (int)rfd_next_to_use);
}
return num_alloc;
}
static void atl1_intr_rx(struct atl1_adapter *adapter)
{
int i, count;
u16 length;
u16 rrd_next_to_clean;
u32 value;
struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
struct atl1_buffer *buffer_info;
struct rx_return_desc *rrd;
struct sk_buff *skb;
count = 0;
rrd_next_to_clean = atomic_read(&rrd_ring->next_to_clean);
while (1) {
rrd = ATL1_RRD_DESC(rrd_ring, rrd_next_to_clean);
i = 1;
if (likely(rrd->xsz.valid)) { /* packet valid */
chk_rrd:
/* check rrd status */
if (likely(rrd->num_buf == 1))
goto rrd_ok;
/* rrd seems to be bad */
if (unlikely(i-- > 0)) {
/* rrd may not be DMAed completely */
printk(KERN_DEBUG
"%s: RRD may not be DMAed completely\n",
atl1_driver_name);
udelay(1);
goto chk_rrd;
}
/* bad rrd */
printk(KERN_DEBUG "%s: bad RRD\n", atl1_driver_name);
/* see if update RFD index */
if (rrd->num_buf > 1) {
u16 num_buf;
num_buf =
(rrd->xsz.xsum_sz.pkt_size +
adapter->rx_buffer_len -
1) / adapter->rx_buffer_len;
if (rrd->num_buf == num_buf) {
/* clean alloc flag for bad rrd */
while (rfd_ring->next_to_clean !=
(rrd->buf_indx + num_buf)) {
rfd_ring->buffer_info[rfd_ring->
next_to_clean].alloced = 0;
if (++rfd_ring->next_to_clean ==
rfd_ring->count) {
rfd_ring->
next_to_clean = 0;
}
}
}
}
/* update rrd */
rrd->xsz.valid = 0;
if (++rrd_next_to_clean == rrd_ring->count)
rrd_next_to_clean = 0;
count++;
continue;
} else { /* current rrd still not be updated */
break;
}
rrd_ok:
/* clean alloc flag for bad rrd */
while (rfd_ring->next_to_clean != rrd->buf_indx) {
rfd_ring->buffer_info[rfd_ring->next_to_clean].alloced =
0;
if (++rfd_ring->next_to_clean == rfd_ring->count)
rfd_ring->next_to_clean = 0;
}
buffer_info = &rfd_ring->buffer_info[rrd->buf_indx];
if (++rfd_ring->next_to_clean == rfd_ring->count)
rfd_ring->next_to_clean = 0;
/* update rrd next to clean */
if (++rrd_next_to_clean == rrd_ring->count)
rrd_next_to_clean = 0;
count++;
if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) {
if (!(rrd->err_flg &
(ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM
| ERR_FLAG_LEN))) {
/* packet error, don't need upstream */
buffer_info->alloced = 0;
rrd->xsz.valid = 0;
continue;
}
}
/* Good Receive */
pci_unmap_page(adapter->pdev, buffer_info->dma,
buffer_info->length, PCI_DMA_FROMDEVICE);
skb = buffer_info->skb;
length = le16_to_cpu(rrd->xsz.xsum_sz.pkt_size);
skb_put(skb, length - ETHERNET_FCS_SIZE);
/* Receive Checksum Offload */
atl1_rx_checksum(adapter, rrd, skb);
skb->protocol = eth_type_trans(skb, adapter->netdev);
if (adapter->vlgrp && (rrd->pkt_flg & PACKET_FLAG_VLAN_INS)) {
u16 vlan_tag = (rrd->vlan_tag >> 4) |
((rrd->vlan_tag & 7) << 13) |
((rrd->vlan_tag & 8) << 9);
vlan_hwaccel_rx(skb, adapter->vlgrp, vlan_tag);
} else
netif_rx(skb);
/* let protocol layer free skb */
buffer_info->skb = NULL;
buffer_info->alloced = 0;
rrd->xsz.valid = 0;
adapter->netdev->last_rx = jiffies;
}
atomic_set(&rrd_ring->next_to_clean, rrd_next_to_clean);
atl1_alloc_rx_buffers(adapter);
/* update mailbox ? */
if (count) {
u32 tpd_next_to_use;
u32 rfd_next_to_use;
u32 rrd_next_to_clean;
spin_lock(&adapter->mb_lock);
tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use);
rfd_next_to_use =
atomic_read(&adapter->rfd_ring.next_to_use);
rrd_next_to_clean =
atomic_read(&adapter->rrd_ring.next_to_clean);
value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) <<
MB_RFD_PROD_INDX_SHIFT) |
((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) <<
MB_RRD_CONS_INDX_SHIFT) |
((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) <<
MB_TPD_PROD_INDX_SHIFT);
iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX);
spin_unlock(&adapter->mb_lock);
}
}
static void atl1_intr_tx(struct atl1_adapter *adapter)
{
struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
struct atl1_buffer *buffer_info;
u16 sw_tpd_next_to_clean;
u16 cmb_tpd_next_to_clean;
u8 update = 0;
sw_tpd_next_to_clean = atomic_read(&tpd_ring->next_to_clean);
cmb_tpd_next_to_clean = le16_to_cpu(adapter->cmb.cmb->tpd_cons_idx);
while (cmb_tpd_next_to_clean != sw_tpd_next_to_clean) {
struct tx_packet_desc *tpd;
update = 1;
tpd = ATL1_TPD_DESC(tpd_ring, sw_tpd_next_to_clean);
buffer_info = &tpd_ring->buffer_info[sw_tpd_next_to_clean];
if (buffer_info->dma) {
pci_unmap_page(adapter->pdev, buffer_info->dma,
buffer_info->length, PCI_DMA_TODEVICE);
buffer_info->dma = 0;
}
if (buffer_info->skb) {
dev_kfree_skb_irq(buffer_info->skb);
buffer_info->skb = NULL;
}
tpd->buffer_addr = 0;
tpd->desc.data = 0;
if (++sw_tpd_next_to_clean == tpd_ring->count)
sw_tpd_next_to_clean = 0;
}
atomic_set(&tpd_ring->next_to_clean, sw_tpd_next_to_clean);
if (netif_queue_stopped(adapter->netdev)
&& netif_carrier_ok(adapter->netdev))
netif_wake_queue(adapter->netdev);
}
static void atl1_check_for_link(struct atl1_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
u16 phy_data = 0;
spin_lock(&adapter->lock);
adapter->phy_timer_pending = false;
atl1_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
atl1_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
spin_unlock(&adapter->lock);
/* notify upper layer link down ASAP */
if (!(phy_data & BMSR_LSTATUS)) { /* Link Down */
if (netif_carrier_ok(netdev)) { /* old link state: Up */
printk(KERN_INFO "%s: %s link is down\n",
atl1_driver_name, netdev->name);
adapter->link_speed = SPEED_0;
netif_carrier_off(netdev);
netif_stop_queue(netdev);
}
}
schedule_work(&adapter->link_chg_task);
}
/*
* atl1_intr - Interrupt Handler
* @irq: interrupt number
* @data: pointer to a network interface device structure
* @pt_regs: CPU registers structure
*/
static irqreturn_t atl1_intr(int irq, void *data)
{
/*struct atl1_adapter *adapter = ((struct net_device *)data)->priv;*/
struct atl1_adapter *adapter = netdev_priv(data);
u32 status;
u8 update_rx;
int max_ints = 10;
status = adapter->cmb.cmb->int_stats;
if (!status)
return IRQ_NONE;
update_rx = 0;
do {
/* clear CMB interrupt status at once */
adapter->cmb.cmb->int_stats = 0;
if (status & ISR_GPHY) /* clear phy status */
atl1_clear_phy_int(adapter);
/* clear ISR status, and Enable CMB DMA/Disable Interrupt */
iowrite32(status | ISR_DIS_INT, adapter->hw.hw_addr + REG_ISR);
/* check if SMB intr */
if (status & ISR_SMB)
atl1_inc_smb(adapter);
/* check if PCIE PHY Link down */
if (status & ISR_PHY_LINKDOWN) {
printk(KERN_DEBUG "%s: pcie phy link down %x\n",
atl1_driver_name, status);
if (netif_running(adapter->netdev)) { /* reset MAC */
iowrite32(0, adapter->hw.hw_addr + REG_IMR);
schedule_work(&adapter->pcie_dma_to_rst_task);
return IRQ_HANDLED;
}
}
/* check if DMA read/write error ? */
if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) {
printk(KERN_DEBUG
"%s: pcie DMA r/w error (status = 0x%x)\n",
atl1_driver_name, status);
iowrite32(0, adapter->hw.hw_addr + REG_IMR);
schedule_work(&adapter->pcie_dma_to_rst_task);
return IRQ_HANDLED;
}
/* link event */
if (status & ISR_GPHY) {
adapter->soft_stats.tx_carrier_errors++;
atl1_check_for_link(adapter);
}
/* transmit event */
if (status & ISR_CMB_TX)
atl1_intr_tx(adapter);
/* rx exception */
if (unlikely(status & (ISR_RXF_OV | ISR_RFD_UNRUN |
ISR_RRD_OV | ISR_HOST_RFD_UNRUN |
ISR_HOST_RRD_OV | ISR_CMB_RX))) {
if (status &
(ISR_RXF_OV | ISR_RFD_UNRUN | ISR_RRD_OV |
ISR_HOST_RFD_UNRUN | ISR_HOST_RRD_OV))
printk(KERN_INFO
"%s: rx exception: status = 0x%x\n",
atl1_driver_name, status);
atl1_intr_rx(adapter);
}
if (--max_ints < 0)
break;
} while ((status = adapter->cmb.cmb->int_stats));
/* re-enable Interrupt */
iowrite32(ISR_DIS_SMB | ISR_DIS_DMA, adapter->hw.hw_addr + REG_ISR);
return IRQ_HANDLED;
}
/*
* atl1_set_multi - Multicast and Promiscuous mode set
* @netdev: network interface device structure
*
* The set_multi entry point is called whenever the multicast address
* list or the network interface flags are updated. This routine is
* responsible for configuring the hardware for proper multicast,
* promiscuous mode, and all-multi behavior.
*/
static void atl1_set_multi(struct net_device *netdev)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
struct atl1_hw *hw = &adapter->hw;
struct dev_mc_list *mc_ptr;
u32 rctl;
u32 hash_value;
/* Check for Promiscuous and All Multicast modes */
rctl = ioread32(hw->hw_addr + REG_MAC_CTRL);
if (netdev->flags & IFF_PROMISC)
rctl |= MAC_CTRL_PROMIS_EN;
else if (netdev->flags & IFF_ALLMULTI) {
rctl |= MAC_CTRL_MC_ALL_EN;
rctl &= ~MAC_CTRL_PROMIS_EN;
} else
rctl &= ~(MAC_CTRL_PROMIS_EN | MAC_CTRL_MC_ALL_EN);
iowrite32(rctl, hw->hw_addr + REG_MAC_CTRL);
/* clear the old settings from the multicast hash table */
iowrite32(0, hw->hw_addr + REG_RX_HASH_TABLE);
iowrite32(0, (hw->hw_addr + REG_RX_HASH_TABLE) + (1 << 2));
/* compute mc addresses' hash value ,and put it into hash table */
for (mc_ptr = netdev->mc_list; mc_ptr; mc_ptr = mc_ptr->next) {
hash_value = atl1_hash_mc_addr(hw, mc_ptr->dmi_addr);
atl1_hash_set(hw, hash_value);
}
}
static void atl1_setup_mac_ctrl(struct atl1_adapter *adapter)
{
u32 value;
struct atl1_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
/* Config MAC CTRL Register */
value = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN;
/* duplex */
if (FULL_DUPLEX == adapter->link_duplex)
value |= MAC_CTRL_DUPLX;
/* speed */
value |= ((u32) ((SPEED_1000 == adapter->link_speed) ?
MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100) <<
MAC_CTRL_SPEED_SHIFT);
/* flow control */
value |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW);
/* PAD & CRC */
value |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD);
/* preamble length */
value |= (((u32) adapter->hw.preamble_len
& MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT);
/* vlan */
if (adapter->vlgrp)
value |= MAC_CTRL_RMV_VLAN;
/* rx checksum
if (adapter->rx_csum)
value |= MAC_CTRL_RX_CHKSUM_EN;
*/
/* filter mode */
value |= MAC_CTRL_BC_EN;
if (netdev->flags & IFF_PROMISC)
value |= MAC_CTRL_PROMIS_EN;
else if (netdev->flags & IFF_ALLMULTI)
value |= MAC_CTRL_MC_ALL_EN;
/* value |= MAC_CTRL_LOOPBACK; */
iowrite32(value, hw->hw_addr + REG_MAC_CTRL);
}
static u32 atl1_check_link(struct atl1_adapter *adapter)
{
struct atl1_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
u32 ret_val;
u16 speed, duplex, phy_data;
int reconfig = 0;
/* MII_BMSR must read twice */
atl1_read_phy_reg(hw, MII_BMSR, &phy_data);
atl1_read_phy_reg(hw, MII_BMSR, &phy_data);
if (!(phy_data & BMSR_LSTATUS)) { /* link down */
if (netif_carrier_ok(netdev)) { /* old link state: Up */
printk(KERN_INFO "%s: link is down\n",
atl1_driver_name);
adapter->link_speed = SPEED_0;
netif_carrier_off(netdev);
netif_stop_queue(netdev);
}
return ATL1_SUCCESS;
}
/* Link Up */
ret_val = atl1_get_speed_and_duplex(hw, &speed, &duplex);
if (ret_val)
return ret_val;
switch (hw->media_type) {
case MEDIA_TYPE_1000M_FULL:
if (speed != SPEED_1000 || duplex != FULL_DUPLEX)
reconfig = 1;
break;
case MEDIA_TYPE_100M_FULL:
if (speed != SPEED_100 || duplex != FULL_DUPLEX)
reconfig = 1;
break;
case MEDIA_TYPE_100M_HALF:
if (speed != SPEED_100 || duplex != HALF_DUPLEX)
reconfig = 1;
break;
case MEDIA_TYPE_10M_FULL:
if (speed != SPEED_10 || duplex != FULL_DUPLEX)
reconfig = 1;
break;
case MEDIA_TYPE_10M_HALF:
if (speed != SPEED_10 || duplex != HALF_DUPLEX)
reconfig = 1;
break;
}
/* link result is our setting */
if (!reconfig) {
if (adapter->link_speed != speed
|| adapter->link_duplex != duplex) {
adapter->link_speed = speed;
adapter->link_duplex = duplex;
atl1_setup_mac_ctrl(adapter);
printk(KERN_INFO "%s: %s link is up %d Mbps %s\n",
atl1_driver_name, netdev->name,
adapter->link_speed,
adapter->link_duplex ==
FULL_DUPLEX ? "full duplex" : "half duplex");
}
if (!netif_carrier_ok(netdev)) { /* Link down -> Up */
netif_carrier_on(netdev);
netif_wake_queue(netdev);
}
return ATL1_SUCCESS;
}
/* change orignal link status */
if (netif_carrier_ok(netdev)) {
adapter->link_speed = SPEED_0;
netif_carrier_off(netdev);
netif_stop_queue(netdev);
}
if (hw->media_type != MEDIA_TYPE_AUTO_SENSOR &&
hw->media_type != MEDIA_TYPE_1000M_FULL) {
switch (hw->media_type) {
case MEDIA_TYPE_100M_FULL:
phy_data = MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
MII_CR_RESET;
break;
case MEDIA_TYPE_100M_HALF:
phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
break;
case MEDIA_TYPE_10M_FULL:
phy_data =
MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
break;
default: /* MEDIA_TYPE_10M_HALF: */
phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
break;
}
atl1_write_phy_reg(hw, MII_BMCR, phy_data);
return ATL1_SUCCESS;
}
/* auto-neg, insert timer to re-config phy */
if (!adapter->phy_timer_pending) {
adapter->phy_timer_pending = true;
mod_timer(&adapter->phy_config_timer, jiffies + 3 * HZ);
}
return ATL1_SUCCESS;
}
static void set_flow_ctrl_old(struct atl1_adapter *adapter)
{
u32 hi, lo, value;
/* RFD Flow Control */
value = adapter->rfd_ring.count;
hi = value / 16;
if (hi < 2)
hi = 2;
lo = value * 7 / 8;
value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) |
((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT);
iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RXF_PAUSE_THRESH);
/* RRD Flow Control */
value = adapter->rrd_ring.count;
lo = value / 16;
hi = value * 7 / 8;
if (lo < 2)
lo = 2;
value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) |
((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT);
iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RRD_PAUSE_THRESH);
}
static void set_flow_ctrl_new(struct atl1_hw *hw)
{
u32 hi, lo, value;
/* RXF Flow Control */
value = ioread32(hw->hw_addr + REG_SRAM_RXF_LEN);
lo = value / 16;
if (lo < 192)
lo = 192;
hi = value * 7 / 8;
if (hi < lo)
hi = lo + 16;
value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) |
((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT);
iowrite32(value, hw->hw_addr + REG_RXQ_RXF_PAUSE_THRESH);
/* RRD Flow Control */
value = ioread32(hw->hw_addr + REG_SRAM_RRD_LEN);
lo = value / 8;
hi = value * 7 / 8;
if (lo < 2)
lo = 2;
if (hi < lo)
hi = lo + 3;
value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) |
((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT);
iowrite32(value, hw->hw_addr + REG_RXQ_RRD_PAUSE_THRESH);
}
/*
* atl1_configure - Configure Transmit&Receive Unit after Reset
* @adapter: board private structure
*
* Configure the Tx /Rx unit of the MAC after a reset.
*/
static u32 atl1_configure(struct atl1_adapter *adapter)
{
struct atl1_hw *hw = &adapter->hw;
u32 value;
/* clear interrupt status */
iowrite32(0xffffffff, adapter->hw.hw_addr + REG_ISR);
/* set MAC Address */
value = (((u32) hw->mac_addr[2]) << 24) |
(((u32) hw->mac_addr[3]) << 16) |
(((u32) hw->mac_addr[4]) << 8) |
(((u32) hw->mac_addr[5]));
iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR);
value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1]));
iowrite32(value, hw->hw_addr + (REG_MAC_STA_ADDR + 4));
/* tx / rx ring */
/* HI base address */
iowrite32((u32) ((adapter->tpd_ring.dma & 0xffffffff00000000ULL) >> 32),
hw->hw_addr + REG_DESC_BASE_ADDR_HI);
/* LO base address */
iowrite32((u32) (adapter->rfd_ring.dma & 0x00000000ffffffffULL),
hw->hw_addr + REG_DESC_RFD_ADDR_LO);
iowrite32((u32) (adapter->rrd_ring.dma & 0x00000000ffffffffULL),
hw->hw_addr + REG_DESC_RRD_ADDR_LO);
iowrite32((u32) (adapter->tpd_ring.dma & 0x00000000ffffffffULL),
hw->hw_addr + REG_DESC_TPD_ADDR_LO);
iowrite32((u32) (adapter->cmb.dma & 0x00000000ffffffffULL),
hw->hw_addr + REG_DESC_CMB_ADDR_LO);
iowrite32((u32) (adapter->smb.dma & 0x00000000ffffffffULL),
hw->hw_addr + REG_DESC_SMB_ADDR_LO);
/* element count */
value = adapter->rrd_ring.count;
value <<= 16;
value += adapter->rfd_ring.count;
iowrite32(value, hw->hw_addr + REG_DESC_RFD_RRD_RING_SIZE);
iowrite32(adapter->tpd_ring.count, hw->hw_addr + REG_DESC_TPD_RING_SIZE);
/* Load Ptr */
iowrite32(1, hw->hw_addr + REG_LOAD_PTR);
/* config Mailbox */
value = ((atomic_read(&adapter->tpd_ring.next_to_use)
& MB_TPD_PROD_INDX_MASK) << MB_TPD_PROD_INDX_SHIFT) |
((atomic_read(&adapter->rrd_ring.next_to_clean)
& MB_RRD_CONS_INDX_MASK) << MB_RRD_CONS_INDX_SHIFT) |
((atomic_read(&adapter->rfd_ring.next_to_use)
& MB_RFD_PROD_INDX_MASK) << MB_RFD_PROD_INDX_SHIFT);
iowrite32(value, hw->hw_addr + REG_MAILBOX);
/* config IPG/IFG */
value = (((u32) hw->ipgt & MAC_IPG_IFG_IPGT_MASK)
<< MAC_IPG_IFG_IPGT_SHIFT) |
(((u32) hw->min_ifg & MAC_IPG_IFG_MIFG_MASK)
<< MAC_IPG_IFG_MIFG_SHIFT) |
(((u32) hw->ipgr1 & MAC_IPG_IFG_IPGR1_MASK)
<< MAC_IPG_IFG_IPGR1_SHIFT) |
(((u32) hw->ipgr2 & MAC_IPG_IFG_IPGR2_MASK)
<< MAC_IPG_IFG_IPGR2_SHIFT);
iowrite32(value, hw->hw_addr + REG_MAC_IPG_IFG);
/* config Half-Duplex Control */
value = ((u32) hw->lcol & MAC_HALF_DUPLX_CTRL_LCOL_MASK) |
(((u32) hw->max_retry & MAC_HALF_DUPLX_CTRL_RETRY_MASK)
<< MAC_HALF_DUPLX_CTRL_RETRY_SHIFT) |
MAC_HALF_DUPLX_CTRL_EXC_DEF_EN |
(0xa << MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT) |
(((u32) hw->jam_ipg & MAC_HALF_DUPLX_CTRL_JAMIPG_MASK)
<< MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT);
iowrite32(value, hw->hw_addr + REG_MAC_HALF_DUPLX_CTRL);
/* set Interrupt Moderator Timer */
iowrite16(adapter->imt, hw->hw_addr + REG_IRQ_MODU_TIMER_INIT);
iowrite32(MASTER_CTRL_ITIMER_EN, hw->hw_addr + REG_MASTER_CTRL);
/* set Interrupt Clear Timer */
iowrite16(adapter->ict, hw->hw_addr + REG_CMBDISDMA_TIMER);
/* set MTU, 4 : VLAN */
iowrite32(hw->max_frame_size + 4, hw->hw_addr + REG_MTU);
/* jumbo size & rrd retirement timer */
value = (((u32) hw->rx_jumbo_th & RXQ_JMBOSZ_TH_MASK)
<< RXQ_JMBOSZ_TH_SHIFT) |
(((u32) hw->rx_jumbo_lkah & RXQ_JMBO_LKAH_MASK)
<< RXQ_JMBO_LKAH_SHIFT) |
(((u32) hw->rrd_ret_timer & RXQ_RRD_TIMER_MASK)
<< RXQ_RRD_TIMER_SHIFT);
iowrite32(value, hw->hw_addr + REG_RXQ_JMBOSZ_RRDTIM);
/* Flow Control */
switch (hw->dev_rev) {
case 0x8001:
case 0x9001:
case 0x9002:
case 0x9003:
set_flow_ctrl_old(adapter);
break;
default:
set_flow_ctrl_new(hw);
break;
}
/* config TXQ */
value = (((u32) hw->tpd_burst & TXQ_CTRL_TPD_BURST_NUM_MASK)
<< TXQ_CTRL_TPD_BURST_NUM_SHIFT) |
(((u32) hw->txf_burst & TXQ_CTRL_TXF_BURST_NUM_MASK)
<< TXQ_CTRL_TXF_BURST_NUM_SHIFT) |
(((u32) hw->tpd_fetch_th & TXQ_CTRL_TPD_FETCH_TH_MASK)
<< TXQ_CTRL_TPD_FETCH_TH_SHIFT) | TXQ_CTRL_ENH_MODE | TXQ_CTRL_EN;
iowrite32(value, hw->hw_addr + REG_TXQ_CTRL);
/* min tpd fetch gap & tx jumbo packet size threshold for taskoffload */
value = (((u32) hw->tx_jumbo_task_th & TX_JUMBO_TASK_TH_MASK)
<< TX_JUMBO_TASK_TH_SHIFT) |
(((u32) hw->tpd_fetch_gap & TX_TPD_MIN_IPG_MASK)
<< TX_TPD_MIN_IPG_SHIFT);
iowrite32(value, hw->hw_addr + REG_TX_JUMBO_TASK_TH_TPD_IPG);
/* config RXQ */
value = (((u32) hw->rfd_burst & RXQ_CTRL_RFD_BURST_NUM_MASK)
<< RXQ_CTRL_RFD_BURST_NUM_SHIFT) |
(((u32) hw->rrd_burst & RXQ_CTRL_RRD_BURST_THRESH_MASK)
<< RXQ_CTRL_RRD_BURST_THRESH_SHIFT) |
(((u32) hw->rfd_fetch_gap & RXQ_CTRL_RFD_PREF_MIN_IPG_MASK)
<< RXQ_CTRL_RFD_PREF_MIN_IPG_SHIFT) |
RXQ_CTRL_CUT_THRU_EN | RXQ_CTRL_EN;
iowrite32(value, hw->hw_addr + REG_RXQ_CTRL);
/* config DMA Engine */
value = ((((u32) hw->dmar_block) & DMA_CTRL_DMAR_BURST_LEN_MASK)
<< DMA_CTRL_DMAR_BURST_LEN_SHIFT) |
((((u32) hw->dmaw_block) & DMA_CTRL_DMAR_BURST_LEN_MASK)
<< DMA_CTRL_DMAR_BURST_LEN_SHIFT) |
DMA_CTRL_DMAR_EN | DMA_CTRL_DMAW_EN;
value |= (u32) hw->dma_ord;
if (atl1_rcb_128 == hw->rcb_value)
value |= DMA_CTRL_RCB_VALUE;
iowrite32(value, hw->hw_addr + REG_DMA_CTRL);
/* config CMB / SMB */
value = hw->cmb_rrd | ((u32) hw->cmb_tpd << 16);
iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TH);
value = hw->cmb_rx_timer | ((u32) hw->cmb_tx_timer << 16);
iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TIMER);
iowrite32(hw->smb_timer, hw->hw_addr + REG_SMB_TIMER);
/* --- enable CMB / SMB */
value = CSMB_CTRL_CMB_EN | CSMB_CTRL_SMB_EN;
iowrite32(value, hw->hw_addr + REG_CSMB_CTRL);
value = ioread32(adapter->hw.hw_addr + REG_ISR);
if (unlikely((value & ISR_PHY_LINKDOWN) != 0))
value = 1; /* config failed */
else
value = 0;
/* clear all interrupt status */
iowrite32(0x3fffffff, adapter->hw.hw_addr + REG_ISR);
iowrite32(0, adapter->hw.hw_addr + REG_ISR);
return value;
}
/*
* atl1_irq_disable - Mask off interrupt generation on the NIC
* @adapter: board private structure
*/
static void atl1_irq_disable(struct atl1_adapter *adapter)
{
atomic_inc(&adapter->irq_sem);
iowrite32(0, adapter->hw.hw_addr + REG_IMR);
ioread32(adapter->hw.hw_addr + REG_IMR);
synchronize_irq(adapter->pdev->irq);
}
static void atl1_vlan_rx_register(struct net_device *netdev,
struct vlan_group *grp)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
unsigned long flags;
u32 ctrl;
spin_lock_irqsave(&adapter->lock, flags);
/* atl1_irq_disable(adapter); */
adapter->vlgrp = grp;
if (grp) {
/* enable VLAN tag insert/strip */
ctrl = ioread32(adapter->hw.hw_addr + REG_MAC_CTRL);
ctrl |= MAC_CTRL_RMV_VLAN;
iowrite32(ctrl, adapter->hw.hw_addr + REG_MAC_CTRL);
} else {
/* disable VLAN tag insert/strip */
ctrl = ioread32(adapter->hw.hw_addr + REG_MAC_CTRL);
ctrl &= ~MAC_CTRL_RMV_VLAN;
iowrite32(ctrl, adapter->hw.hw_addr + REG_MAC_CTRL);
}
/* atl1_irq_enable(adapter); */
spin_unlock_irqrestore(&adapter->lock, flags);
}
/* FIXME: justify or remove -- CHS */
static void atl1_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
{
/* We don't do Vlan filtering */
return;
}
/* FIXME: this looks wrong too -- CHS */
static void atl1_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
unsigned long flags;
spin_lock_irqsave(&adapter->lock, flags);
/* atl1_irq_disable(adapter); */
if (adapter->vlgrp)
adapter->vlgrp->vlan_devices[vid] = NULL;
/* atl1_irq_enable(adapter); */
spin_unlock_irqrestore(&adapter->lock, flags);
/* We don't do Vlan filtering */
return;
}
static void atl1_restore_vlan(struct atl1_adapter *adapter)
{
atl1_vlan_rx_register(adapter->netdev, adapter->vlgrp);
if (adapter->vlgrp) {
u16 vid;
for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
if (!adapter->vlgrp->vlan_devices[vid])
continue;
atl1_vlan_rx_add_vid(adapter->netdev, vid);
}
}
}
static u16 tpd_avail(struct atl1_tpd_ring *tpd_ring)
{
u16 next_to_clean = atomic_read(&tpd_ring->next_to_clean);
u16 next_to_use = atomic_read(&tpd_ring->next_to_use);
return ((next_to_clean >
next_to_use) ? next_to_clean - next_to_use -
1 : tpd_ring->count + next_to_clean - next_to_use - 1);
}
static int atl1_tso(struct atl1_adapter *adapter, struct sk_buff *skb,
struct tso_param *tso)
{
/* We enter this function holding a spinlock. */
u8 ipofst;
int err;
if (skb_shinfo(skb)->gso_size) {
if (skb_header_cloned(skb)) {
err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
if (unlikely(err))
return err;
}
if (skb->protocol == ntohs(ETH_P_IP)) {
skb->nh.iph->tot_len = 0;
skb->nh.iph->check = 0;
skb->h.th->check =
~csum_tcpudp_magic(skb->nh.iph->saddr,
skb->nh.iph->daddr, 0,
IPPROTO_TCP, 0);
ipofst = skb->nh.raw - skb->data;
if (ipofst != ENET_HEADER_SIZE) /* 802.3 frame */
tso->tsopl |= 1 << TSO_PARAM_ETHTYPE_SHIFT;
tso->tsopl |= (skb->nh.iph->ihl &
CSUM_PARAM_IPHL_MASK) << CSUM_PARAM_IPHL_SHIFT;
tso->tsopl |= ((skb->h.th->doff << 2) &
TSO_PARAM_TCPHDRLEN_MASK) << TSO_PARAM_TCPHDRLEN_SHIFT;
tso->tsopl |= (skb_shinfo(skb)->gso_size &
TSO_PARAM_MSS_MASK) << TSO_PARAM_MSS_SHIFT;
tso->tsopl |= 1 << TSO_PARAM_IPCKSUM_SHIFT;
tso->tsopl |= 1 << TSO_PARAM_TCPCKSUM_SHIFT;
tso->tsopl |= 1 << TSO_PARAM_SEGMENT_SHIFT;
return true;
}
}
return false;
}
static int atl1_tx_csum(struct atl1_adapter *adapter, struct sk_buff *skb,
struct csum_param *csum)
{
u8 css, cso;
if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
cso = skb->h.raw - skb->data;
css = (skb->h.raw + skb->csum) - skb->data;
if (unlikely(cso & 0x1)) {
printk(KERN_DEBUG "%s: payload offset != even number\n",
atl1_driver_name);
return -1;
}
csum->csumpl |= (cso & CSUM_PARAM_PLOADOFFSET_MASK) <<
CSUM_PARAM_PLOADOFFSET_SHIFT;
csum->csumpl |= (css & CSUM_PARAM_XSUMOFFSET_MASK) <<
CSUM_PARAM_XSUMOFFSET_SHIFT;
csum->csumpl |= 1 << CSUM_PARAM_CUSTOMCKSUM_SHIFT;
return true;
}
return true;
}
static void atl1_tx_map(struct atl1_adapter *adapter,
struct sk_buff *skb, bool tcp_seg)
{
/* We enter this function holding a spinlock. */
struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
struct atl1_buffer *buffer_info;
struct page *page;
int first_buf_len = skb->len;
unsigned long offset;
unsigned int nr_frags;
unsigned int f;
u16 tpd_next_to_use;
u16 proto_hdr_len;
u16 i, m, len12;
first_buf_len -= skb->data_len;
nr_frags = skb_shinfo(skb)->nr_frags;
tpd_next_to_use = atomic_read(&tpd_ring->next_to_use);
buffer_info = &tpd_ring->buffer_info[tpd_next_to_use];
if (unlikely(buffer_info->skb))
BUG();
buffer_info->skb = NULL; /* put skb in last TPD */
if (tcp_seg) {
/* TSO/GSO */
proto_hdr_len =
((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
buffer_info->length = proto_hdr_len;
page = virt_to_page(skb->data);
offset = (unsigned long)skb->data & ~PAGE_MASK;
buffer_info->dma = pci_map_page(adapter->pdev, page,
offset, proto_hdr_len,
PCI_DMA_TODEVICE);
if (++tpd_next_to_use == tpd_ring->count)
tpd_next_to_use = 0;
if (first_buf_len > proto_hdr_len) {
len12 = first_buf_len - proto_hdr_len;
m = (len12 + MAX_TX_BUF_LEN - 1) / MAX_TX_BUF_LEN;
for (i = 0; i < m; i++) {
buffer_info =
&tpd_ring->buffer_info[tpd_next_to_use];
buffer_info->skb = NULL;
buffer_info->length =
(MAX_TX_BUF_LEN >=
len12) ? MAX_TX_BUF_LEN : len12;
len12 -= buffer_info->length;
page = virt_to_page(skb->data +
(proto_hdr_len +
i * MAX_TX_BUF_LEN));
offset = (unsigned long)(skb->data +
(proto_hdr_len +
i * MAX_TX_BUF_LEN)) &
~PAGE_MASK;
buffer_info->dma =
pci_map_page(adapter->pdev, page, offset,
buffer_info->length,
PCI_DMA_TODEVICE);
if (++tpd_next_to_use == tpd_ring->count)
tpd_next_to_use = 0;
}
}
} else {
/* not TSO/GSO */
buffer_info->length = first_buf_len;
page = virt_to_page(skb->data);
offset = (unsigned long)skb->data & ~PAGE_MASK;
buffer_info->dma = pci_map_page(adapter->pdev, page,
offset, first_buf_len,
PCI_DMA_TODEVICE);
if (++tpd_next_to_use == tpd_ring->count)
tpd_next_to_use = 0;
}
for (f = 0; f < nr_frags; f++) {
struct skb_frag_struct *frag;
u16 lenf, i, m;
frag = &skb_shinfo(skb)->frags[f];
lenf = frag->size;
m = (lenf + MAX_TX_BUF_LEN - 1) / MAX_TX_BUF_LEN;
for (i = 0; i < m; i++) {
buffer_info = &tpd_ring->buffer_info[tpd_next_to_use];
if (unlikely(buffer_info->skb))
BUG();
buffer_info->skb = NULL;
buffer_info->length =
(lenf > MAX_TX_BUF_LEN) ? MAX_TX_BUF_LEN : lenf;
lenf -= buffer_info->length;
buffer_info->dma =
pci_map_page(adapter->pdev, frag->page,
frag->page_offset + i * MAX_TX_BUF_LEN,
buffer_info->length, PCI_DMA_TODEVICE);
if (++tpd_next_to_use == tpd_ring->count)
tpd_next_to_use = 0;
}
}
/* last tpd's buffer-info */
buffer_info->skb = skb;
}
static void atl1_tx_queue(struct atl1_adapter *adapter, int count,
union tpd_descr *descr)
{
/* We enter this function holding a spinlock. */
struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
int j;
u32 val;
struct atl1_buffer *buffer_info;
struct tx_packet_desc *tpd;
u16 tpd_next_to_use = atomic_read(&tpd_ring->next_to_use);
for (j = 0; j < count; j++) {
buffer_info = &tpd_ring->buffer_info[tpd_next_to_use];
tpd = ATL1_TPD_DESC(&adapter->tpd_ring, tpd_next_to_use);
tpd->desc.csum.csumpu = descr->csum.csumpu;
tpd->desc.csum.csumpl = descr->csum.csumpl;
tpd->desc.tso.tsopu = descr->tso.tsopu;
tpd->desc.tso.tsopl = descr->tso.tsopl;
tpd->buffer_addr = cpu_to_le64(buffer_info->dma);
tpd->desc.data = descr->data;
tpd->desc.csum.csumpu |= (cpu_to_le16(buffer_info->length) &
CSUM_PARAM_BUFLEN_MASK) << CSUM_PARAM_BUFLEN_SHIFT;
val = (descr->tso.tsopl >> TSO_PARAM_SEGMENT_SHIFT) &
TSO_PARAM_SEGMENT_MASK;
if (val && !j)
tpd->desc.tso.tsopl |= 1 << TSO_PARAM_HDRFLAG_SHIFT;
if (j == (count - 1))
tpd->desc.csum.csumpl |= 1 << CSUM_PARAM_EOP_SHIFT;
if (++tpd_next_to_use == tpd_ring->count)
tpd_next_to_use = 0;
}
/*
* Force memory writes to complete before letting h/w
* know there are new descriptors to fetch. (Only
* applicable for weak-ordered memory model archs,
* such as IA-64).
*/
wmb();
atomic_set(&tpd_ring->next_to_use, (int)tpd_next_to_use);
}
static void atl1_update_mailbox(struct atl1_adapter *adapter)
{
unsigned long flags;
u32 tpd_next_to_use;
u32 rfd_next_to_use;
u32 rrd_next_to_clean;
u32 value;
spin_lock_irqsave(&adapter->mb_lock, flags);
tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use);
rfd_next_to_use = atomic_read(&adapter->rfd_ring.next_to_use);
rrd_next_to_clean = atomic_read(&adapter->rrd_ring.next_to_clean);
value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) <<
MB_RFD_PROD_INDX_SHIFT) |
((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) <<
MB_RRD_CONS_INDX_SHIFT) |
((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) <<
MB_TPD_PROD_INDX_SHIFT);
iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX);
spin_unlock_irqrestore(&adapter->mb_lock, flags);
}
static int atl1_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
int len = skb->len;
int tso;
int count = 1;
int ret_val;
u32 val;
union tpd_descr param;
u16 frag_size;
u16 vlan_tag;
unsigned long flags;
unsigned int nr_frags = 0;
unsigned int mss = 0;
unsigned int f;
unsigned int proto_hdr_len;
len -= skb->data_len;
if (unlikely(skb->len == 0)) {
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
param.data = 0;
param.tso.tsopu = 0;
param.tso.tsopl = 0;
param.csum.csumpu = 0;
param.csum.csumpl = 0;
/* nr_frags will be nonzero if we're doing scatter/gather (SG) */
nr_frags = skb_shinfo(skb)->nr_frags;
for (f = 0; f < nr_frags; f++) {
frag_size = skb_shinfo(skb)->frags[f].size;
if (frag_size)
count +=
(frag_size + MAX_TX_BUF_LEN - 1) / MAX_TX_BUF_LEN;
}
/* mss will be nonzero if we're doing segment offload (TSO/GSO) */
mss = skb_shinfo(skb)->gso_size;
if (mss) {
if (skb->protocol == ntohs(ETH_P_IP)) {
proto_hdr_len = ((skb->h.raw - skb->data) +
(skb->h.th->doff << 2));
if (unlikely(proto_hdr_len > len)) {
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
/* need additional TPD ? */
if (proto_hdr_len != len)
count += (len - proto_hdr_len +
MAX_TX_BUF_LEN - 1) / MAX_TX_BUF_LEN;
}
}
local_irq_save(flags);
if (!spin_trylock(&adapter->lock)) {
/* Can't get lock - tell upper layer to requeue */
local_irq_restore(flags);
printk(KERN_DEBUG "%s: TX locked\n", atl1_driver_name);
return NETDEV_TX_LOCKED;
}
if (tpd_avail(&adapter->tpd_ring) < count) {
/* not enough descriptors */
netif_stop_queue(netdev);
spin_unlock_irqrestore(&adapter->lock, flags);
printk(KERN_DEBUG "%s: TX busy\n", atl1_driver_name);
return NETDEV_TX_BUSY;
}
param.data = 0;
if (adapter->vlgrp && vlan_tx_tag_present(skb)) {
vlan_tag = vlan_tx_tag_get(skb);
vlan_tag = (vlan_tag << 4) | (vlan_tag >> 13) |
((vlan_tag >> 9) & 0x8);
param.csum.csumpl |= 1 << CSUM_PARAM_INSVLAG_SHIFT;
param.csum.csumpu |= (vlan_tag & CSUM_PARAM_VALANTAG_MASK) <<
CSUM_PARAM_VALAN_SHIFT;
}
tso = atl1_tso(adapter, skb, &param.tso);
if (tso < 0) {
spin_unlock_irqrestore(&adapter->lock, flags);
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
if (!tso) {
ret_val = atl1_tx_csum(adapter, skb, &param.csum);
if (ret_val < 0) {
spin_unlock_irqrestore(&adapter->lock, flags);
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
}
val = (param.csum.csumpl >> CSUM_PARAM_SEGMENT_SHIFT) &
CSUM_PARAM_SEGMENT_MASK;
atl1_tx_map(adapter, skb, 1 == val);
atl1_tx_queue(adapter, count, &param);
netdev->trans_start = jiffies;
spin_unlock_irqrestore(&adapter->lock, flags);
atl1_update_mailbox(adapter);
return NETDEV_TX_OK;
}
/*
* atl1_get_stats - Get System Network Statistics
* @netdev: network interface device structure
*
* Returns the address of the device statistics structure.
* The statistics are actually updated from the timer callback.
*/
static struct net_device_stats *atl1_get_stats(struct net_device *netdev)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
return &adapter->net_stats;
}
/*
* atl1_clean_rx_ring - Free RFD Buffers
* @adapter: board private structure
*/
static void atl1_clean_rx_ring(struct atl1_adapter *adapter)
{
struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
struct atl1_buffer *buffer_info;
struct pci_dev *pdev = adapter->pdev;
unsigned long size;
unsigned int i;
/* Free all the Rx ring sk_buffs */
for (i = 0; i < rfd_ring->count; i++) {
buffer_info = &rfd_ring->buffer_info[i];
if (buffer_info->dma) {
pci_unmap_page(pdev,
buffer_info->dma,
buffer_info->length,
PCI_DMA_FROMDEVICE);
buffer_info->dma = 0;
}
if (buffer_info->skb) {
dev_kfree_skb(buffer_info->skb);
buffer_info->skb = NULL;
}
}
size = sizeof(struct atl1_buffer) * rfd_ring->count;
memset(rfd_ring->buffer_info, 0, size);
/* Zero out the descriptor ring */
memset(rfd_ring->desc, 0, rfd_ring->size);
rfd_ring->next_to_clean = 0;
atomic_set(&rfd_ring->next_to_use, 0);
rrd_ring->next_to_use = 0;
atomic_set(&rrd_ring->next_to_clean, 0);
}
/*
* atl1_clean_tx_ring - Free Tx Buffers
* @adapter: board private structure
*/
static void atl1_clean_tx_ring(struct atl1_adapter *adapter)
{
struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
struct atl1_buffer *buffer_info;
struct pci_dev *pdev = adapter->pdev;
unsigned long size;
unsigned int i;
/* Free all the Tx ring sk_buffs */
for (i = 0; i < tpd_ring->count; i++) {
buffer_info = &tpd_ring->buffer_info[i];
if (buffer_info->dma) {
pci_unmap_page(pdev, buffer_info->dma,
buffer_info->length, PCI_DMA_TODEVICE);
buffer_info->dma = 0;
}
}
for (i = 0; i < tpd_ring->count; i++) {
buffer_info = &tpd_ring->buffer_info[i];
if (buffer_info->skb) {
dev_kfree_skb_any(buffer_info->skb);
buffer_info->skb = NULL;
}
}
size = sizeof(struct atl1_buffer) * tpd_ring->count;
memset(tpd_ring->buffer_info, 0, size);
/* Zero out the descriptor ring */
memset(tpd_ring->desc, 0, tpd_ring->size);
atomic_set(&tpd_ring->next_to_use, 0);
atomic_set(&tpd_ring->next_to_clean, 0);
}
/*
* atl1_free_ring_resources - Free Tx / RX descriptor Resources
* @adapter: board private structure
*
* Free all transmit software resources
*/
void atl1_free_ring_resources(struct atl1_adapter *adapter)
{
struct pci_dev *pdev = adapter->pdev;
struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
struct atl1_ring_header *ring_header = &adapter->ring_header;
atl1_clean_tx_ring(adapter);
atl1_clean_rx_ring(adapter);
kfree(tpd_ring->buffer_info);
pci_free_consistent(pdev, ring_header->size, ring_header->desc,
ring_header->dma);
tpd_ring->buffer_info = NULL;
tpd_ring->desc = NULL;
tpd_ring->dma = 0;
rfd_ring->buffer_info = NULL;
rfd_ring->desc = NULL;
rfd_ring->dma = 0;
rrd_ring->desc = NULL;
rrd_ring->dma = 0;
}
s32 atl1_up(struct atl1_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
int err;
int irq_flags = IRQF_SAMPLE_RANDOM;
/* hardware has been reset, we need to reload some things */
atl1_set_multi(netdev);
atl1_restore_vlan(adapter);
err = atl1_alloc_rx_buffers(adapter);
if (unlikely(!err)) /* no RX BUFFER allocated */
return -ENOMEM;
if (unlikely(atl1_configure(adapter))) {
err = -EIO;
goto err_up;
}
err = pci_enable_msi(adapter->pdev);
if (err) {
dev_info(&adapter->pdev->dev,
"Unable to enable MSI: %d\n", err);
irq_flags |= IRQF_SHARED;
}
err = request_irq(adapter->pdev->irq, &atl1_intr, irq_flags,
netdev->name, netdev);
if (unlikely(err))
goto err_up;
mod_timer(&adapter->watchdog_timer, jiffies);
atl1_irq_enable(adapter);
atl1_check_link(adapter);
return 0;
/* FIXME: unreachable code! -- CHS */
/* free irq disable any interrupt */
iowrite32(0, adapter->hw.hw_addr + REG_IMR);
free_irq(adapter->pdev->irq, netdev);
err_up:
pci_disable_msi(adapter->pdev);
/* free rx_buffers */
atl1_clean_rx_ring(adapter);
return err;
}
void atl1_down(struct atl1_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
del_timer_sync(&adapter->watchdog_timer);
del_timer_sync(&adapter->phy_config_timer);
adapter->phy_timer_pending = false;
atl1_irq_disable(adapter);
free_irq(adapter->pdev->irq, netdev);
pci_disable_msi(adapter->pdev);
atl1_reset_hw(&adapter->hw);
adapter->cmb.cmb->int_stats = 0;
adapter->link_speed = SPEED_0;
adapter->link_duplex = -1;
netif_carrier_off(netdev);
netif_stop_queue(netdev);
atl1_clean_tx_ring(adapter);
atl1_clean_rx_ring(adapter);
}
/*
* atl1_change_mtu - Change the Maximum Transfer Unit
* @netdev: network interface device structure
* @new_mtu: new value for maximum frame size
*
* Returns 0 on success, negative on failure
*/
static int atl1_change_mtu(struct net_device *netdev, int new_mtu)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
int old_mtu = netdev->mtu;
int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) ||
(max_frame > MAX_JUMBO_FRAME_SIZE)) {
printk(KERN_WARNING "%s: invalid MTU setting\n",
atl1_driver_name);
return -EINVAL;
}
adapter->hw.max_frame_size = max_frame;
adapter->hw.tx_jumbo_task_th = (max_frame + 7) >> 3;
adapter->rx_buffer_len = (max_frame + 7) & ~7;
adapter->hw.rx_jumbo_th = adapter->rx_buffer_len / 8;
netdev->mtu = new_mtu;
if ((old_mtu != new_mtu) && netif_running(netdev)) {
atl1_down(adapter);
atl1_up(adapter);
}
return 0;
}
/*
* atl1_set_mac - Change the Ethernet Address of the NIC
* @netdev: network interface device structure
* @p: pointer to an address structure
*
* Returns 0 on success, negative on failure
*/
static int atl1_set_mac(struct net_device *netdev, void *p)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
struct sockaddr *addr = p;
if (netif_running(netdev))
return -EBUSY;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
memcpy(adapter->hw.mac_addr, addr->sa_data, netdev->addr_len);
atl1_set_mac_addr(&adapter->hw);
return 0;
}
/*
* atl1_watchdog - Timer Call-back
* @data: pointer to netdev cast into an unsigned long
*/
static void atl1_watchdog(unsigned long data)
{
struct atl1_adapter *adapter = (struct atl1_adapter *)data;
/* Reset the timer */
mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
}
static int mdio_read(struct net_device *netdev, int phy_id, int reg_num)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
u16 result;
atl1_read_phy_reg(&adapter->hw, reg_num & 0x1f, &result);
return result;
}
static void mdio_write(struct net_device *netdev, int phy_id, int reg_num, int val)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
atl1_write_phy_reg(&adapter->hw, reg_num, val);
}
/*
* atl1_mii_ioctl -
* @netdev:
* @ifreq:
* @cmd:
*/
static int atl1_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
unsigned long flags;
int retval;
if (!netif_running(netdev))
return -EINVAL;
spin_lock_irqsave(&adapter->lock, flags);
retval = generic_mii_ioctl(&adapter->mii, if_mii(ifr), cmd, NULL);
spin_unlock_irqrestore(&adapter->lock, flags);
return retval;
}
/*
* atl1_ioctl -
* @netdev:
* @ifreq:
* @cmd:
*/
static int atl1_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
{
switch (cmd) {
case SIOCGMIIPHY:
case SIOCGMIIREG:
case SIOCSMIIREG:
return atl1_mii_ioctl(netdev, ifr, cmd);
default:
return -EOPNOTSUPP;
}
}
/*
* atl1_tx_timeout - Respond to a Tx Hang
* @netdev: network interface device structure
*/
static void atl1_tx_timeout(struct net_device *netdev)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
/* Do the reset outside of interrupt context */
schedule_work(&adapter->tx_timeout_task);
}
/*
* atl1_phy_config - Timer Call-back
* @data: pointer to netdev cast into an unsigned long
*/
static void atl1_phy_config(unsigned long data)
{
struct atl1_adapter *adapter = (struct atl1_adapter *)data;
struct atl1_hw *hw = &adapter->hw;
unsigned long flags;
spin_lock_irqsave(&adapter->lock, flags);
adapter->phy_timer_pending = false;
atl1_write_phy_reg(hw, MII_ADVERTISE, hw->mii_autoneg_adv_reg);
atl1_write_phy_reg(hw, MII_AT001_CR, hw->mii_1000t_ctrl_reg);
atl1_write_phy_reg(hw, MII_BMCR, MII_CR_RESET | MII_CR_AUTO_NEG_EN);
spin_unlock_irqrestore(&adapter->lock, flags);
}
int atl1_reset(struct atl1_adapter *adapter)
{
int ret;
ret = atl1_reset_hw(&adapter->hw);
if (ret != ATL1_SUCCESS)
return ret;
return atl1_init_hw(&adapter->hw);
}
/*
* atl1_open - Called when a network interface is made active
* @netdev: network interface device structure
*
* Returns 0 on success, negative value on failure
*
* The open entry point is called when a network interface is made
* active by the system (IFF_UP). At this point all resources needed
* for transmit and receive operations are allocated, the interrupt
* handler is registered with the OS, the watchdog timer is started,
* and the stack is notified that the interface is ready.
*/
static int atl1_open(struct net_device *netdev)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
int err;
/* allocate transmit descriptors */
err = atl1_setup_ring_resources(adapter);
if (err)
return err;
err = atl1_up(adapter);
if (err)
goto err_up;
return 0;
err_up:
atl1_reset(adapter);
return err;
}
/*
* atl1_close - Disables a network interface
* @netdev: network interface device structure
*
* Returns 0, this is not allowed to fail
*
* The close entry point is called when an interface is de-activated
* by the OS. The hardware is still under the drivers control, but
* needs to be disabled. A global MAC reset is issued to stop the
* hardware, and all transmit and receive resources are freed.
*/
static int atl1_close(struct net_device *netdev)
{
struct atl1_adapter *adapter = netdev_priv(netdev);
atl1_down(adapter);
atl1_free_ring_resources(adapter);
return 0;
}
/*
* If TPD Buffer size equal to 0, PCIE DMAR_TO_INT
* will assert. We do soft reset <0x1400=1> according
* with the SPEC. BUT, it seemes that PCIE or DMA
* state-machine will not be reset. DMAR_TO_INT will
* assert again and again.
*/
static void atl1_tx_timeout_task(struct work_struct *work)
{
struct atl1_adapter *adapter =
container_of(work, struct atl1_adapter, tx_timeout_task);
struct net_device *netdev = adapter->netdev;
netif_device_detach(netdev);
atl1_down(adapter);
atl1_up(adapter);
netif_device_attach(netdev);
}
/*
* atl1_link_chg_task - deal with link change event Out of interrupt context
*/
static void atl1_link_chg_task(struct work_struct *work)
{
struct atl1_adapter *adapter =
container_of(work, struct atl1_adapter, link_chg_task);
unsigned long flags;
spin_lock_irqsave(&adapter->lock, flags);
atl1_check_link(adapter);
spin_unlock_irqrestore(&adapter->lock, flags);
}
/*
* atl1_pcie_patch - Patch for PCIE module
*/
static void atl1_pcie_patch(struct atl1_adapter *adapter)
{
u32 value;
value = 0x6500;
iowrite32(value, adapter->hw.hw_addr + 0x12FC);
/* pcie flow control mode change */
value = ioread32(adapter->hw.hw_addr + 0x1008);
value |= 0x8000;
iowrite32(value, adapter->hw.hw_addr + 0x1008);
}
/*
* When ACPI resume on some VIA MotherBoard, the Interrupt Disable bit/0x400
* on PCI Command register is disable.
* The function enable this bit.
* Brackett, 2006/03/15
*/
static void atl1_via_workaround(struct atl1_adapter *adapter)
{
unsigned long value;
value = ioread16(adapter->hw.hw_addr + PCI_COMMAND);
if (value & PCI_COMMAND_INTX_DISABLE)
value &= ~PCI_COMMAND_INTX_DISABLE;
iowrite32(value, adapter->hw.hw_addr + PCI_COMMAND);
}
/*
* atl1_probe - Device Initialization Routine
* @pdev: PCI device information struct
* @ent: entry in atl1_pci_tbl
*
* Returns 0 on success, negative on failure
*
* atl1_probe initializes an adapter identified by a pci_dev structure.
* The OS initialization, configuring of the adapter private structure,
* and a hardware reset occur.
*/
static int __devinit atl1_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct net_device *netdev;
struct atl1_adapter *adapter;
static int cards_found = 0;
bool pci_using_64 = true;
int err;
err = pci_enable_device(pdev);
if (err)
return err;
err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
if (err) {
err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
if (err) {
printk(KERN_DEBUG
"%s: no usable DMA configuration, aborting\n",
atl1_driver_name);
goto err_dma;
}
pci_using_64 = false;
}
/* Mark all PCI regions associated with PCI device
* pdev as being reserved by owner atl1_driver_name
*/
err = pci_request_regions(pdev, atl1_driver_name);
if (err)
goto err_request_regions;
/* Enables bus-mastering on the device and calls
* pcibios_set_master to do the needed arch specific settings
*/
pci_set_master(pdev);
netdev = alloc_etherdev(sizeof(struct atl1_adapter));
if (!netdev) {
err = -ENOMEM;
goto err_alloc_etherdev;
}
SET_MODULE_OWNER(netdev);
SET_NETDEV_DEV(netdev, &pdev->dev);
pci_set_drvdata(pdev, netdev);
adapter = netdev_priv(netdev);
adapter->netdev = netdev;
adapter->pdev = pdev;
adapter->hw.back = adapter;
adapter->hw.hw_addr = pci_iomap(pdev, 0, 0);
if (!adapter->hw.hw_addr) {
err = -EIO;
goto err_pci_iomap;
}
/* get device revision number */
adapter->hw.dev_rev = ioread16(adapter->hw.hw_addr + (REG_MASTER_CTRL + 2));
/* set default ring resource counts */
adapter->rfd_ring.count = adapter->rrd_ring.count = ATL1_DEFAULT_RFD;
adapter->tpd_ring.count = ATL1_DEFAULT_TPD;
adapter->mii.dev = netdev;
adapter->mii.mdio_read = mdio_read;
adapter->mii.mdio_write = mdio_write;
adapter->mii.phy_id_mask = 0x1f;
adapter->mii.reg_num_mask = 0x1f;
netdev->open = &atl1_open;
netdev->stop = &atl1_close;
netdev->hard_start_xmit = &atl1_xmit_frame;
netdev->get_stats = &atl1_get_stats;
netdev->set_multicast_list = &atl1_set_multi;
netdev->set_mac_address = &atl1_set_mac;
netdev->change_mtu = &atl1_change_mtu;
netdev->do_ioctl = &atl1_ioctl;
netdev->tx_timeout = &atl1_tx_timeout;
netdev->watchdog_timeo = 5 * HZ;
netdev->vlan_rx_register = atl1_vlan_rx_register;
netdev->vlan_rx_add_vid = atl1_vlan_rx_add_vid;
netdev->vlan_rx_kill_vid = atl1_vlan_rx_kill_vid;
netdev->ethtool_ops = &atl1_ethtool_ops;
adapter->bd_number = cards_found;
adapter->pci_using_64 = pci_using_64;
/* setup the private structure */
err = atl1_sw_init(adapter);
if (err)
goto err_common;
netdev->features = NETIF_F_HW_CSUM;
netdev->features |= NETIF_F_SG;
netdev->features |= (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX);
/*
* FIXME - Until tso performance gets fixed, disable the feature.
* Enable it with ethtool -K if desired.
*/
/* netdev->features |= NETIF_F_TSO; */
if (pci_using_64)
netdev->features |= NETIF_F_HIGHDMA;
netdev->features |= NETIF_F_LLTX;
/*
* patch for some L1 of old version,
* the final version of L1 may not need these
* patches
*/
/* atl1_pcie_patch(adapter); */
/* really reset GPHY core */
iowrite16(0, adapter->hw.hw_addr + REG_GPHY_ENABLE);
/*
* reset the controller to
* put the device in a known good starting state
*/
if (atl1_reset_hw(&adapter->hw)) {
err = -EIO;
goto err_common;
}
/* copy the MAC address out of the EEPROM */
atl1_read_mac_addr(&adapter->hw);
memcpy(netdev->dev_addr, adapter->hw.mac_addr, netdev->addr_len);
if (!is_valid_ether_addr(netdev->dev_addr)) {
err = -EIO;
goto err_common;
}
atl1_check_options(adapter);
/* pre-init the MAC, and setup link */
err = atl1_init_hw(&adapter->hw);
if (err) {
err = -EIO;
goto err_common;
}
atl1_pcie_patch(adapter);
/* assume we have no link for now */
netif_carrier_off(netdev);
netif_stop_queue(netdev);
init_timer(&adapter->watchdog_timer);
adapter->watchdog_timer.function = &atl1_watchdog;
adapter->watchdog_timer.data = (unsigned long)adapter;
init_timer(&adapter->phy_config_timer);
adapter->phy_config_timer.function = &atl1_phy_config;
adapter->phy_config_timer.data = (unsigned long)adapter;
adapter->phy_timer_pending = false;
INIT_WORK(&adapter->tx_timeout_task, atl1_tx_timeout_task);
INIT_WORK(&adapter->link_chg_task, atl1_link_chg_task);
INIT_WORK(&adapter->pcie_dma_to_rst_task, atl1_tx_timeout_task);
err = register_netdev(netdev);
if (err)
goto err_common;
cards_found++;
atl1_via_workaround(adapter);
return 0;
err_common:
pci_iounmap(pdev, adapter->hw.hw_addr);
err_pci_iomap:
free_netdev(netdev);
err_alloc_etherdev:
pci_release_regions(pdev);
err_dma:
err_request_regions:
pci_disable_device(pdev);
return err;
}
/*
* atl1_remove - Device Removal Routine
* @pdev: PCI device information struct
*
* atl1_remove is called by the PCI subsystem to alert the driver
* that it should release a PCI device. The could be caused by a
* Hot-Plug event, or because the driver is going to be removed from
* memory.
*/
static void __devexit atl1_remove(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct atl1_adapter *adapter;
/* Device not available. Return. */
if (!netdev)
return;
adapter = netdev_priv(netdev);
iowrite16(0, adapter->hw.hw_addr + REG_GPHY_ENABLE);
unregister_netdev(netdev);
pci_iounmap(pdev, adapter->hw.hw_addr);
pci_release_regions(pdev);
free_netdev(netdev);
pci_disable_device(pdev);
}
#ifdef CONFIG_PM
static int atl1_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct atl1_adapter *adapter = netdev_priv(netdev);
struct atl1_hw *hw = &adapter->hw;
u32 ctrl = 0;
u32 wufc = adapter->wol;
netif_device_detach(netdev);
if (netif_running(netdev))
atl1_down(adapter);
atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl);
atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl);
if (ctrl & BMSR_LSTATUS)
wufc &= ~ATL1_WUFC_LNKC;
/* reduce speed to 10/100M */
if (wufc) {
atl1_phy_enter_power_saving(hw);
/* if resume, let driver to re- setup link */
hw->phy_configured = false;
atl1_set_mac_addr(hw);
atl1_set_multi(netdev);
ctrl = 0;
/* turn on magic packet wol */
if (wufc & ATL1_WUFC_MAG)
ctrl = WOL_MAGIC_EN | WOL_MAGIC_PME_EN;
/* turn on Link change WOL */
if (wufc & ATL1_WUFC_LNKC)
ctrl |= (WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN);
iowrite32(ctrl, hw->hw_addr + REG_WOL_CTRL);
/* turn on all-multi mode if wake on multicast is enabled */
ctrl = ioread32(hw->hw_addr + REG_MAC_CTRL);
ctrl &= ~MAC_CTRL_DBG;
ctrl &= ~MAC_CTRL_PROMIS_EN;
if (wufc & ATL1_WUFC_MC)
ctrl |= MAC_CTRL_MC_ALL_EN;
else
ctrl &= ~MAC_CTRL_MC_ALL_EN;
/* turn on broadcast mode if wake on-BC is enabled */
if (wufc & ATL1_WUFC_BC)
ctrl |= MAC_CTRL_BC_EN;
else
ctrl &= ~MAC_CTRL_BC_EN;
/* enable RX */
ctrl |= MAC_CTRL_RX_EN;
iowrite32(ctrl, hw->hw_addr + REG_MAC_CTRL);
pci_enable_wake(pdev, PCI_D3hot, 1);
pci_enable_wake(pdev, PCI_D3cold, 1); /* 4 == D3 cold */
} else {
iowrite32(0, hw->hw_addr + REG_WOL_CTRL);
pci_enable_wake(pdev, PCI_D3hot, 0);
pci_enable_wake(pdev, PCI_D3cold, 0); /* 4 == D3 cold */
}
pci_save_state(pdev);
pci_disable_device(pdev);
pci_set_power_state(pdev, PCI_D3hot);
return 0;
}
static int atl1_resume(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct atl1_adapter *adapter = netdev_priv(netdev);
u32 ret_val;
pci_set_power_state(pdev, 0);
pci_restore_state(pdev);
ret_val = pci_enable_device(pdev);
pci_enable_wake(pdev, PCI_D3hot, 0);
pci_enable_wake(pdev, PCI_D3cold, 0);
iowrite32(0, adapter->hw.hw_addr + REG_WOL_CTRL);
atl1_reset(adapter);
if (netif_running(netdev))
atl1_up(adapter);
netif_device_attach(netdev);
atl1_via_workaround(adapter);
return 0;
}
#else
#define atl1_suspend NULL
#define atl1_resume NULL
#endif
static struct pci_driver atl1_driver = {
.name = atl1_driver_name,
.id_table = atl1_pci_tbl,
.probe = atl1_probe,
.remove = __devexit_p(atl1_remove),
/* Power Managment Hooks */
/* probably broken right now -- CHS */
.suspend = atl1_suspend,
.resume = atl1_resume
};
/*
* atl1_exit_module - Driver Exit Cleanup Routine
*
* atl1_exit_module is called just before the driver is removed
* from memory.
*/
static void __exit atl1_exit_module(void)
{
pci_unregister_driver(&atl1_driver);
}
/*
* atl1_init_module - Driver Registration Routine
*
* atl1_init_module is the first routine called when the driver is
* loaded. All it does is register with the PCI subsystem.
*/
static int __init atl1_init_module(void)
{
printk(KERN_INFO "%s - version %s\n", atl1_driver_string, DRIVER_VERSION);
printk(KERN_INFO "%s\n", atl1_copyright);
return pci_register_driver(&atl1_driver);
}
module_init(atl1_init_module);
module_exit(atl1_exit_module);
drivers/net/atl1/atl1_param.c 0 → 100644
View file @ f3cc28c7
/*
* Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
* Copyright(c) 2006 Chris Snook <csnook@redhat.com>
* Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.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.
*/
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/moduleparam.h>
#include "atl1.h"
/*
* This is the only thing that needs to be changed to adjust the
* maximum number of ports that the driver can manage.
*/
#define ATL1_MAX_NIC 4
#define OPTION_UNSET -1
#define OPTION_DISABLED 0
#define OPTION_ENABLED 1
#define ATL1_PARAM_INIT { [0 ... ATL1_MAX_NIC] = OPTION_UNSET }
/*
* Interrupt Moderate Timer in units of 2 us
*
* Valid Range: 10-65535
*
* Default Value: 100 (200us)
*/
static int __devinitdata int_mod_timer[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT;
static int num_int_mod_timer = 0;
module_param_array_named(int_mod_timer, int_mod_timer, int, &num_int_mod_timer, 0);
MODULE_PARM_DESC(int_mod_timer, "Interrupt moderator timer");
/*
* flash_vendor
*
* Valid Range: 0-2
*
* 0 - Atmel
* 1 - SST
* 2 - ST
*
* Default Value: 0
*/
static int __devinitdata flash_vendor[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT;
static int num_flash_vendor = 0;
module_param_array_named(flash_vendor, flash_vendor, int, &num_flash_vendor, 0);
MODULE_PARM_DESC(flash_vendor, "SPI flash vendor");
#define DEFAULT_INT_MOD_CNT 100 /* 200us */
#define MAX_INT_MOD_CNT 65000
#define MIN_INT_MOD_CNT 50
#define FLASH_VENDOR_DEFAULT 0
#define FLASH_VENDOR_MIN 0
#define FLASH_VENDOR_MAX 2
struct atl1_option {
enum { enable_option, range_option, list_option } type;
char *name;
char *err;
int def;
union {
struct { /* range_option info */
int min;
int max;
} r;
struct { /* list_option info */
int nr;
struct atl1_opt_list {
int i;
char *str;
} *p;
} l;
} arg;
};
static int __devinit atl1_validate_option(int *value, struct atl1_option *opt)
{
if (*value == OPTION_UNSET) {
*value = opt->def;
return 0;
}
switch (opt->type) {
case enable_option:
switch (*value) {
case OPTION_ENABLED:
printk(KERN_INFO "%s: %s Enabled\n", atl1_driver_name,
opt->name);
return 0;
case OPTION_DISABLED:
printk(KERN_INFO "%s: %s Disabled\n", atl1_driver_name,
opt->name);
return 0;
}
break;
case range_option:
if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
printk(KERN_INFO "%s: %s set to %i\n",
atl1_driver_name, opt->name, *value);
return 0;
}
break;
case list_option:{
int i;
struct atl1_opt_list *ent;
for (i = 0; i < opt->arg.l.nr; i++) {
ent = &opt->arg.l.p[i];
if (*value == ent->i) {
if (ent->str[0] != '\0')
printk(KERN_INFO "%s: %s\n",
atl1_driver_name, ent->str);
return 0;
}
}
}
break;
default:
break;
}
printk(KERN_INFO "%s: invalid %s specified (%i) %s\n",
atl1_driver_name, opt->name, *value, opt->err);
*value = opt->def;
return -1;
}
/*
* atl1_check_options - Range Checking for Command Line Parameters
* @adapter: board private structure
*
* This routine checks all command line parameters for valid user
* input. If an invalid value is given, or if no user specified
* value exists, a default value is used. The final value is stored
* in a variable in the adapter structure.
*/
void __devinit atl1_check_options(struct atl1_adapter *adapter)
{
int bd = adapter->bd_number;
if (bd >= ATL1_MAX_NIC) {
printk(KERN_NOTICE "%s: warning: no configuration for board #%i\n",
atl1_driver_name, bd);
printk(KERN_NOTICE "%s: using defaults for all values\n",
atl1_driver_name);
}
{ /* Interrupt Moderate Timer */
struct atl1_option opt = {
.type = range_option,
.name = "Interrupt Moderator Timer",
.err = "using default of "
__MODULE_STRING(DEFAULT_INT_MOD_CNT),
.def = DEFAULT_INT_MOD_CNT,
.arg = {.r =
{.min = MIN_INT_MOD_CNT,.max = MAX_INT_MOD_CNT}}
};
int val;
if (num_int_mod_timer > bd) {
val = int_mod_timer[bd];
atl1_validate_option(&val, &opt);
adapter->imt = (u16) val;
} else
adapter->imt = (u16) (opt.def);
}
{ /* Flash Vendor */
struct atl1_option opt = {
.type = range_option,
.name = "SPI Flash Vendor",
.err = "using default of "
__MODULE_STRING(FLASH_VENDOR_DEFAULT),
.def = DEFAULT_INT_MOD_CNT,
.arg = {.r =
{.min = FLASH_VENDOR_MIN,.max =
FLASH_VENDOR_MAX}}
};
int val;
if (num_flash_vendor > bd) {
val = flash_vendor[bd];
atl1_validate_option(&val, &opt);
adapter->hw.flash_vendor = (u8) val;
} else
adapter->hw.flash_vendor = (u8) (opt.def);
}
}
include/linux/pci_ids.h
View file @ f3cc28c7
......@@ -2073,6 +2073,8 @@
#define PCI_VENDOR_ID_PASEMI 0x1959
#define PCI_VENDOR_ID_ATTANSIC 0x1969
#define PCI_VENDOR_ID_JMICRON 0x197B
#define PCI_DEVICE_ID_JMICRON_JMB360 0x2360
#define PCI_DEVICE_ID_JMICRON_JMB361 0x2361
......
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