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yaml
---
r: 47011
b: refs/heads/master
c: f049274
h: refs/heads/master
i:
  47009: 49b17d1
  47007: 32507c8
v: v3
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Linus Torvalds committed Feb 9, 2007
1 parent cf0bcdc commit 3cd44e2
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Showing 15 changed files with 5,212 additions and 111 deletions.
2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 1539b98b561754252dd520b98fa03a688a4f81b5
refs/heads/master: f049274b012fd3b50113f194bfbbcbc3143d0da3
4 changes: 2 additions & 2 deletions trunk/MAINTAINERS
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Expand Up @@ -1114,7 +1114,7 @@ S: Supported
DAVICOM FAST ETHERNET (DMFE) NETWORK DRIVER
P: Tobias Ringstrom
M: tori@unhappy.mine.nu
L: linux-kernel@vger.kernel.org
L: netdev@vger.kernel.org
S: Maintained

DOCBOOK FOR DOCUMENTATION
Expand Down Expand Up @@ -2361,7 +2361,7 @@ S: Maintained
NETWORKING [WIRELESS]
P: John W. Linville
M: linville@tuxdriver.com
L: netdev@vger.kernel.org
L: linux-wireless@vger.kernel.org
T: git kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6.git
S: Maintained

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11 changes: 11 additions & 0 deletions trunk/drivers/net/Kconfig
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Expand Up @@ -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

#
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1 change: 1 addition & 0 deletions trunk/drivers/net/Makefile
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Expand Up @@ -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 \
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2 changes: 2 additions & 0 deletions trunk/drivers/net/atl1/Makefile
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obj-$(CONFIG_ATL1) += atl1.o
atl1-y += atl1_main.o atl1_hw.o atl1_ethtool.o atl1_param.o
283 changes: 283 additions & 0 deletions trunk/drivers/net/atl1/atl1.h
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/*
* 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_ */
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