drivers/net/pasemi_mac.h - kernel/skids - Git at Google

 /*
  * Copyright (C) 2006 PA Semi, Inc
  *
  * Driver for the PA6T-1682M onchip 1G/10G Ethernet MACs, soft state and
  * hardware register layouts.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
  * 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 PASEMI_MAC_H
 #define PASEMI_MAC_H

 #include <linux/ethtool.h>
 #include <linux/netdevice.h>
 #include <linux/spinlock.h>
 #include <linux/phy.h>

 /* Must be a power of two */
 #define RX_RING_SIZE 2048
 #define TX_RING_SIZE 4096
 #define CS_RING_SIZE (TX_RING_SIZE*2)


 #define MAX_LRO_DESCRIPTORS 8
 #define MAX_CS	2

 struct pasemi_mac_txring {
 	struct pasemi_dmachan chan; /* Must be first */
 	spinlock_t	 lock;
 	unsigned int	 size;
 	unsigned int	 next_to_fill;
 	unsigned int	 next_to_clean;
 	struct pasemi_mac_buffer *ring_info;
 	struct pasemi_mac *mac;	/* Needed in intr handler */
 	struct timer_list clean_timer;
 };

 struct pasemi_mac_rxring {
 	struct pasemi_dmachan chan; /* Must be first */
 	spinlock_t	 lock;
 	u64		*buffers;	/* RX interface buffer ring */
 	dma_addr_t	 buf_dma;
 	unsigned int	 size;
 	unsigned int	 next_to_fill;
 	unsigned int	 next_to_clean;
 	struct pasemi_mac_buffer *ring_info;
 	struct pasemi_mac *mac;	/* Needed in intr handler */
 };

 struct pasemi_mac_csring {
 	struct pasemi_dmachan chan;
 	unsigned int	size;
 	unsigned int	next_to_fill;
 	int		events[2];
 	int		last_event;
 	int		fun;
 };

 struct pasemi_mac {
 	struct net_device *netdev;
 	struct pci_dev *pdev;
 	struct pci_dev *dma_pdev;
 	struct pci_dev *iob_pdev;
 	struct phy_device *phydev;
 	struct napi_struct napi;

 	int		bufsz; /* RX ring buffer size */
 	int		last_cs;
 	int		num_cs;
 	u32		dma_if;
 	u8		type;
 #define MAC_TYPE_GMAC	1
 #define MAC_TYPE_XAUI	2

 	u8		mac_addr[6];

 	struct net_lro_mgr	lro_mgr;
 	struct net_lro_desc	lro_desc[MAX_LRO_DESCRIPTORS];
 	struct timer_list	rxtimer;
 	unsigned int		lro_max_aggr;

 	struct pasemi_mac_txring *tx;
 	struct pasemi_mac_rxring *rx;
 	struct pasemi_mac_csring *cs[MAX_CS];
 	char		tx_irq_name[10];		/* "eth%d tx" */
 	char		rx_irq_name[10];		/* "eth%d rx" */
 	int	link;
 	int	speed;
 	int	duplex;

 	unsigned int	msg_enable;
 };

 /* Software status descriptor (ring_info) */
 struct pasemi_mac_buffer {
 	struct sk_buff *skb;
 	dma_addr_t	dma;
 };

 #define TX_DESC(tx, num)	((tx)->chan.ring_virt[(num) & (TX_RING_SIZE-1)])
 #define TX_DESC_INFO(tx, num)	((tx)->ring_info[(num) & (TX_RING_SIZE-1)])
 #define RX_DESC(rx, num)	((rx)->chan.ring_virt[(num) & (RX_RING_SIZE-1)])
 #define RX_DESC_INFO(rx, num)	((rx)->ring_info[(num) & (RX_RING_SIZE-1)])
 #define RX_BUFF(rx, num)	((rx)->buffers[(num) & (RX_RING_SIZE-1)])
 #define CS_DESC(cs, num)	((cs)->chan.ring_virt[(num) & (CS_RING_SIZE-1)])

 #define RING_USED(ring)	(((ring)->next_to_fill - (ring)->next_to_clean) \
 				& ((ring)->size - 1))
 #define RING_AVAIL(ring)	((ring->size) - RING_USED(ring))

 /* PCI register offsets and formats */


 /* MAC CFG register offsets */
 enum {
 	PAS_MAC_CFG_PCFG = 0x80,
 	PAS_MAC_CFG_MACCFG = 0x84,
 	PAS_MAC_CFG_ADR0 = 0x8c,
 	PAS_MAC_CFG_ADR1 = 0x90,
 	PAS_MAC_CFG_TXP = 0x98,
 	PAS_MAC_CFG_RMON = 0x100,
 	PAS_MAC_IPC_CHNL = 0x208,
 };

 /* MAC CFG register fields */
 #define PAS_MAC_CFG_PCFG_PE		0x80000000
 #define PAS_MAC_CFG_PCFG_CE		0x40000000
 #define PAS_MAC_CFG_PCFG_BU		0x20000000
 #define PAS_MAC_CFG_PCFG_TT		0x10000000
 #define PAS_MAC_CFG_PCFG_TSR_M		0x0c000000
 #define PAS_MAC_CFG_PCFG_TSR_10M	0x00000000
 #define PAS_MAC_CFG_PCFG_TSR_100M	0x04000000
 #define PAS_MAC_CFG_PCFG_TSR_1G		0x08000000
 #define PAS_MAC_CFG_PCFG_TSR_10G	0x0c000000
 #define PAS_MAC_CFG_PCFG_T24		0x02000000
 #define PAS_MAC_CFG_PCFG_PR		0x01000000
 #define PAS_MAC_CFG_PCFG_CRO_M		0x00ff0000
 #define PAS_MAC_CFG_PCFG_CRO_S	16
 #define PAS_MAC_CFG_PCFG_IPO_M		0x0000ff00
 #define PAS_MAC_CFG_PCFG_IPO_S	8
 #define PAS_MAC_CFG_PCFG_S1		0x00000080
 #define PAS_MAC_CFG_PCFG_IO_M		0x00000060
 #define PAS_MAC_CFG_PCFG_IO_MAC		0x00000000
 #define PAS_MAC_CFG_PCFG_IO_OFF		0x00000020
 #define PAS_MAC_CFG_PCFG_IO_IND_ETH	0x00000040
 #define PAS_MAC_CFG_PCFG_IO_IND_IP	0x00000060
 #define PAS_MAC_CFG_PCFG_LP		0x00000010
 #define PAS_MAC_CFG_PCFG_TS		0x00000008
 #define PAS_MAC_CFG_PCFG_HD		0x00000004
 #define PAS_MAC_CFG_PCFG_SPD_M		0x00000003
 #define PAS_MAC_CFG_PCFG_SPD_10M	0x00000000
 #define PAS_MAC_CFG_PCFG_SPD_100M	0x00000001
 #define PAS_MAC_CFG_PCFG_SPD_1G		0x00000002
 #define PAS_MAC_CFG_PCFG_SPD_10G	0x00000003

 #define PAS_MAC_CFG_MACCFG_TXT_M	0x70000000
 #define PAS_MAC_CFG_MACCFG_TXT_S	28
 #define PAS_MAC_CFG_MACCFG_PRES_M	0x0f000000
 #define PAS_MAC_CFG_MACCFG_PRES_S	24
 #define PAS_MAC_CFG_MACCFG_MAXF_M	0x00ffff00
 #define PAS_MAC_CFG_MACCFG_MAXF_S	8
 #define PAS_MAC_CFG_MACCFG_MAXF(x)	(((x) << PAS_MAC_CFG_MACCFG_MAXF_S) & \
 					 PAS_MAC_CFG_MACCFG_MAXF_M)
 #define PAS_MAC_CFG_MACCFG_MINF_M	0x000000ff
 #define PAS_MAC_CFG_MACCFG_MINF_S	0

 #define PAS_MAC_CFG_TXP_FCF		0x01000000
 #define PAS_MAC_CFG_TXP_FCE		0x00800000
 #define PAS_MAC_CFG_TXP_FC		0x00400000
 #define PAS_MAC_CFG_TXP_FPC_M		0x00300000
 #define PAS_MAC_CFG_TXP_FPC_S		20
 #define PAS_MAC_CFG_TXP_FPC(x)		(((x) << PAS_MAC_CFG_TXP_FPC_S) & \
 					 PAS_MAC_CFG_TXP_FPC_M)
 #define PAS_MAC_CFG_TXP_RT		0x00080000
 #define PAS_MAC_CFG_TXP_BL		0x00040000
 #define PAS_MAC_CFG_TXP_SL_M		0x00030000
 #define PAS_MAC_CFG_TXP_SL_S		16
 #define PAS_MAC_CFG_TXP_SL(x)		(((x) << PAS_MAC_CFG_TXP_SL_S) & \
 					 PAS_MAC_CFG_TXP_SL_M)
 #define PAS_MAC_CFG_TXP_COB_M		0x0000f000
 #define PAS_MAC_CFG_TXP_COB_S		12
 #define PAS_MAC_CFG_TXP_COB(x)		(((x) << PAS_MAC_CFG_TXP_COB_S) & \
 					 PAS_MAC_CFG_TXP_COB_M)
 #define PAS_MAC_CFG_TXP_TIFT_M		0x00000f00
 #define PAS_MAC_CFG_TXP_TIFT_S		8
 #define PAS_MAC_CFG_TXP_TIFT(x)		(((x) << PAS_MAC_CFG_TXP_TIFT_S) & \
 					 PAS_MAC_CFG_TXP_TIFT_M)
 #define PAS_MAC_CFG_TXP_TIFG_M		0x000000ff
 #define PAS_MAC_CFG_TXP_TIFG_S		0
 #define PAS_MAC_CFG_TXP_TIFG(x)		(((x) << PAS_MAC_CFG_TXP_TIFG_S) & \
 					 PAS_MAC_CFG_TXP_TIFG_M)

 #define PAS_MAC_RMON(r)			(0x100+(r)*4)

 #define PAS_MAC_IPC_CHNL_DCHNO_M	0x003f0000
 #define PAS_MAC_IPC_CHNL_DCHNO_S	16
 #define PAS_MAC_IPC_CHNL_DCHNO(x)	(((x) << PAS_MAC_IPC_CHNL_DCHNO_S) & \
 					 PAS_MAC_IPC_CHNL_DCHNO_M)
 #define PAS_MAC_IPC_CHNL_BCH_M		0x0000003f
 #define PAS_MAC_IPC_CHNL_BCH_S		0
 #define PAS_MAC_IPC_CHNL_BCH(x)		(((x) << PAS_MAC_IPC_CHNL_BCH_S) & \
 					 PAS_MAC_IPC_CHNL_BCH_M)


 #endif /* PASEMI_MAC_H */
	/*
	* Copyright (C) 2006 PA Semi, Inc
	*
	* Driver for the PA6T-1682M onchip 1G/10G Ethernet MACs, soft state and
	* hardware register layouts.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*
	* 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 PASEMI_MAC_H
	#define PASEMI_MAC_H

	#include <linux/ethtool.h>
	#include <linux/netdevice.h>
	#include <linux/spinlock.h>
	#include <linux/phy.h>

	/* Must be a power of two */
	#define RX_RING_SIZE 2048
	#define TX_RING_SIZE 4096
	#define CS_RING_SIZE (TX_RING_SIZE*2)


	#define MAX_LRO_DESCRIPTORS 8
	#define MAX_CS 2

	struct pasemi_mac_txring {
	struct pasemi_dmachan chan; /* Must be first */
	spinlock_t lock;
	unsigned int size;
	unsigned int next_to_fill;
	unsigned int next_to_clean;
	struct pasemi_mac_buffer *ring_info;
	struct pasemi_mac mac; / Needed in intr handler */
	struct timer_list clean_timer;
	};

	struct pasemi_mac_rxring {
	struct pasemi_dmachan chan; /* Must be first */
	spinlock_t lock;
	u64 buffers; / RX interface buffer ring */
	dma_addr_t buf_dma;
	unsigned int size;
	unsigned int next_to_fill;
	unsigned int next_to_clean;
	struct pasemi_mac_buffer *ring_info;
	struct pasemi_mac mac; / Needed in intr handler */
	};

	struct pasemi_mac_csring {
	struct pasemi_dmachan chan;
	unsigned int size;
	unsigned int next_to_fill;
	int events[2];
	int last_event;
	int fun;
	};

	struct pasemi_mac {
	struct net_device *netdev;
	struct pci_dev *pdev;
	struct pci_dev *dma_pdev;
	struct pci_dev *iob_pdev;
	struct phy_device *phydev;
	struct napi_struct napi;

	int bufsz; /* RX ring buffer size */
	int last_cs;
	int num_cs;
	u32 dma_if;
	u8 type;
	#define MAC_TYPE_GMAC 1
	#define MAC_TYPE_XAUI 2

	u8 mac_addr[6];

	struct net_lro_mgr lro_mgr;
	struct net_lro_desc lro_desc[MAX_LRO_DESCRIPTORS];
	struct timer_list rxtimer;
	unsigned int lro_max_aggr;

	struct pasemi_mac_txring *tx;
	struct pasemi_mac_rxring *rx;
	struct pasemi_mac_csring *cs[MAX_CS];
	char tx_irq_name[10]; /* "eth%d tx" */
	char rx_irq_name[10]; /* "eth%d rx" */
	int link;
	int speed;
	int duplex;

	unsigned int msg_enable;
	};

	/* Software status descriptor (ring_info) */
	struct pasemi_mac_buffer {
	struct sk_buff *skb;
	dma_addr_t dma;
	};

	#define TX_DESC(tx, num) ((tx)->chan.ring_virt[(num) & (TX_RING_SIZE-1)])
	#define TX_DESC_INFO(tx, num) ((tx)->ring_info[(num) & (TX_RING_SIZE-1)])
	#define RX_DESC(rx, num) ((rx)->chan.ring_virt[(num) & (RX_RING_SIZE-1)])
	#define RX_DESC_INFO(rx, num) ((rx)->ring_info[(num) & (RX_RING_SIZE-1)])
	#define RX_BUFF(rx, num) ((rx)->buffers[(num) & (RX_RING_SIZE-1)])
	#define CS_DESC(cs, num) ((cs)->chan.ring_virt[(num) & (CS_RING_SIZE-1)])

	#define RING_USED(ring) (((ring)->next_to_fill - (ring)->next_to_clean) \
	& ((ring)->size - 1))
	#define RING_AVAIL(ring) ((ring->size) - RING_USED(ring))

	/* PCI register offsets and formats */


	/* MAC CFG register offsets */
	enum {
	PAS_MAC_CFG_PCFG = 0x80,
	PAS_MAC_CFG_MACCFG = 0x84,
	PAS_MAC_CFG_ADR0 = 0x8c,
	PAS_MAC_CFG_ADR1 = 0x90,
	PAS_MAC_CFG_TXP = 0x98,
	PAS_MAC_CFG_RMON = 0x100,
	PAS_MAC_IPC_CHNL = 0x208,
	};

	/* MAC CFG register fields */
	#define PAS_MAC_CFG_PCFG_PE 0x80000000
	#define PAS_MAC_CFG_PCFG_CE 0x40000000
	#define PAS_MAC_CFG_PCFG_BU 0x20000000
	#define PAS_MAC_CFG_PCFG_TT 0x10000000
	#define PAS_MAC_CFG_PCFG_TSR_M 0x0c000000
	#define PAS_MAC_CFG_PCFG_TSR_10M 0x00000000
	#define PAS_MAC_CFG_PCFG_TSR_100M 0x04000000
	#define PAS_MAC_CFG_PCFG_TSR_1G 0x08000000
	#define PAS_MAC_CFG_PCFG_TSR_10G 0x0c000000
	#define PAS_MAC_CFG_PCFG_T24 0x02000000
	#define PAS_MAC_CFG_PCFG_PR 0x01000000
	#define PAS_MAC_CFG_PCFG_CRO_M 0x00ff0000
	#define PAS_MAC_CFG_PCFG_CRO_S 16
	#define PAS_MAC_CFG_PCFG_IPO_M 0x0000ff00
	#define PAS_MAC_CFG_PCFG_IPO_S 8
	#define PAS_MAC_CFG_PCFG_S1 0x00000080
	#define PAS_MAC_CFG_PCFG_IO_M 0x00000060
	#define PAS_MAC_CFG_PCFG_IO_MAC 0x00000000
	#define PAS_MAC_CFG_PCFG_IO_OFF 0x00000020
	#define PAS_MAC_CFG_PCFG_IO_IND_ETH 0x00000040
	#define PAS_MAC_CFG_PCFG_IO_IND_IP 0x00000060
	#define PAS_MAC_CFG_PCFG_LP 0x00000010
	#define PAS_MAC_CFG_PCFG_TS 0x00000008
	#define PAS_MAC_CFG_PCFG_HD 0x00000004
	#define PAS_MAC_CFG_PCFG_SPD_M 0x00000003
	#define PAS_MAC_CFG_PCFG_SPD_10M 0x00000000
	#define PAS_MAC_CFG_PCFG_SPD_100M 0x00000001
	#define PAS_MAC_CFG_PCFG_SPD_1G 0x00000002
	#define PAS_MAC_CFG_PCFG_SPD_10G 0x00000003

	#define PAS_MAC_CFG_MACCFG_TXT_M 0x70000000
	#define PAS_MAC_CFG_MACCFG_TXT_S 28
	#define PAS_MAC_CFG_MACCFG_PRES_M 0x0f000000
	#define PAS_MAC_CFG_MACCFG_PRES_S 24
	#define PAS_MAC_CFG_MACCFG_MAXF_M 0x00ffff00
	#define PAS_MAC_CFG_MACCFG_MAXF_S 8
	#define PAS_MAC_CFG_MACCFG_MAXF(x) (((x) << PAS_MAC_CFG_MACCFG_MAXF_S) & \
	PAS_MAC_CFG_MACCFG_MAXF_M)
	#define PAS_MAC_CFG_MACCFG_MINF_M 0x000000ff
	#define PAS_MAC_CFG_MACCFG_MINF_S 0

	#define PAS_MAC_CFG_TXP_FCF 0x01000000
	#define PAS_MAC_CFG_TXP_FCE 0x00800000
	#define PAS_MAC_CFG_TXP_FC 0x00400000
	#define PAS_MAC_CFG_TXP_FPC_M 0x00300000
	#define PAS_MAC_CFG_TXP_FPC_S 20
	#define PAS_MAC_CFG_TXP_FPC(x) (((x) << PAS_MAC_CFG_TXP_FPC_S) & \
	PAS_MAC_CFG_TXP_FPC_M)
	#define PAS_MAC_CFG_TXP_RT 0x00080000
	#define PAS_MAC_CFG_TXP_BL 0x00040000
	#define PAS_MAC_CFG_TXP_SL_M 0x00030000
	#define PAS_MAC_CFG_TXP_SL_S 16
	#define PAS_MAC_CFG_TXP_SL(x) (((x) << PAS_MAC_CFG_TXP_SL_S) & \
	PAS_MAC_CFG_TXP_SL_M)
	#define PAS_MAC_CFG_TXP_COB_M 0x0000f000
	#define PAS_MAC_CFG_TXP_COB_S 12
	#define PAS_MAC_CFG_TXP_COB(x) (((x) << PAS_MAC_CFG_TXP_COB_S) & \
	PAS_MAC_CFG_TXP_COB_M)
	#define PAS_MAC_CFG_TXP_TIFT_M 0x00000f00
	#define PAS_MAC_CFG_TXP_TIFT_S 8
	#define PAS_MAC_CFG_TXP_TIFT(x) (((x) << PAS_MAC_CFG_TXP_TIFT_S) & \
	PAS_MAC_CFG_TXP_TIFT_M)
	#define PAS_MAC_CFG_TXP_TIFG_M 0x000000ff
	#define PAS_MAC_CFG_TXP_TIFG_S 0
	#define PAS_MAC_CFG_TXP_TIFG(x) (((x) << PAS_MAC_CFG_TXP_TIFG_S) & \
	PAS_MAC_CFG_TXP_TIFG_M)

	#define PAS_MAC_RMON(r) (0x100+(r)*4)

	#define PAS_MAC_IPC_CHNL_DCHNO_M 0x003f0000
	#define PAS_MAC_IPC_CHNL_DCHNO_S 16
	#define PAS_MAC_IPC_CHNL_DCHNO(x) (((x) << PAS_MAC_IPC_CHNL_DCHNO_S) & \
	PAS_MAC_IPC_CHNL_DCHNO_M)
	#define PAS_MAC_IPC_CHNL_BCH_M 0x0000003f
	#define PAS_MAC_IPC_CHNL_BCH_S 0
	#define PAS_MAC_IPC_CHNL_BCH(x) (((x) << PAS_MAC_IPC_CHNL_BCH_S) & \
	PAS_MAC_IPC_CHNL_BCH_M)


	#endif /* PASEMI_MAC_H */