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/*
* 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, see <http://www.gnu.org/licenses/>.
*/
#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[ETH_ALEN];
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 */
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