diff options
Diffstat (limited to 'drivers/net/ethernet/pasemi/pasemi_mac.h')
| -rw-r--r-- | drivers/net/ethernet/pasemi/pasemi_mac.h | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/drivers/net/ethernet/pasemi/pasemi_mac.h b/drivers/net/ethernet/pasemi/pasemi_mac.h new file mode 100644 index 00000000000..a5807703ab9 --- /dev/null +++ b/drivers/net/ethernet/pasemi/pasemi_mac.h @@ -0,0 +1,215 @@ +/* + * 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 */ |