kernel-ark/drivers/net/pasemi_mac.h

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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, 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;
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
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 */