diff options
Diffstat (limited to 'drivers/net/ethernet/apm/xgene/xgene_enet_main.h')
| -rw-r--r-- | drivers/net/ethernet/apm/xgene/xgene_enet_main.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.h b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h new file mode 100644 index 000000000000..0815866986b0 --- /dev/null +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h @@ -0,0 +1,135 @@ +/* Applied Micro X-Gene SoC Ethernet Driver + * + * Copyright (c) 2014, Applied Micro Circuits Corporation + * Authors: Iyappan Subramanian <isubramanian@apm.com> + * Ravi Patel <rapatel@apm.com> + * Keyur Chudgar <kchudgar@apm.com> + * + * 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, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __XGENE_ENET_MAIN_H__ +#define __XGENE_ENET_MAIN_H__ + +#include <linux/clk.h> +#include <linux/of_platform.h> +#include <linux/of_net.h> +#include <linux/of_mdio.h> +#include <linux/module.h> +#include <net/ip.h> +#include <linux/prefetch.h> +#include <linux/if_vlan.h> +#include <linux/phy.h> +#include "xgene_enet_hw.h" + +#define XGENE_DRV_VERSION "v1.0" +#define XGENE_ENET_MAX_MTU 1536 +#define SKB_BUFFER_SIZE (XGENE_ENET_MAX_MTU - NET_IP_ALIGN) +#define NUM_PKT_BUF 64 +#define NUM_BUFPOOL 32 + +/* software context of a descriptor ring */ +struct xgene_enet_desc_ring { + struct net_device *ndev; + u16 id; + u16 num; + u16 head; + u16 tail; + u16 slots; + u16 irq; + u32 size; + u32 state[NUM_RING_CONFIG]; + void __iomem *cmd_base; + void __iomem *cmd; + dma_addr_t dma; + u16 dst_ring_num; + u8 nbufpool; + struct sk_buff *(*rx_skb); + struct sk_buff *(*cp_skb); + enum xgene_enet_ring_cfgsize cfgsize; + struct xgene_enet_desc_ring *cp_ring; + struct xgene_enet_desc_ring *buf_pool; + struct napi_struct napi; + union { + void *desc_addr; + struct xgene_enet_raw_desc *raw_desc; + struct xgene_enet_raw_desc16 *raw_desc16; + }; +}; + +/* ethernet private data */ +struct xgene_enet_pdata { + struct net_device *ndev; + struct mii_bus *mdio_bus; + struct phy_device *phy_dev; + int phy_speed; + struct clk *clk; + struct platform_device *pdev; + struct xgene_enet_desc_ring *tx_ring; + struct xgene_enet_desc_ring *rx_ring; + char *dev_name; + u32 rx_buff_cnt; + u32 tx_qcnt_hi; + u32 cp_qcnt_hi; + u32 cp_qcnt_low; + u32 rx_irq; + void __iomem *eth_csr_addr; + void __iomem *eth_ring_if_addr; + void __iomem *eth_diag_csr_addr; + void __iomem *mcx_mac_addr; + void __iomem *mcx_stats_addr; + void __iomem *mcx_mac_csr_addr; + void __iomem *base_addr; + void __iomem *ring_csr_addr; + void __iomem *ring_cmd_addr; + u32 phy_addr; + int phy_mode; + u32 speed; + u16 rm; + struct rtnl_link_stats64 stats; +}; + +/* Set the specified value into a bit-field defined by its starting position + * and length within a single u64. + */ +static inline u64 xgene_enet_set_field_value(int pos, int len, u64 val) +{ + return (val & ((1ULL << len) - 1)) << pos; +} + +#define SET_VAL(field, val) \ + xgene_enet_set_field_value(field ## _POS, field ## _LEN, val) + +#define SET_BIT(field) \ + xgene_enet_set_field_value(field ## _POS, 1, 1) + +/* Get the value from a bit-field defined by its starting position + * and length within the specified u64. + */ +static inline u64 xgene_enet_get_field_value(int pos, int len, u64 src) +{ + return (src >> pos) & ((1ULL << len) - 1); +} + +#define GET_VAL(field, src) \ + xgene_enet_get_field_value(field ## _POS, field ## _LEN, src) + +static inline struct device *ndev_to_dev(struct net_device *ndev) +{ + return ndev->dev.parent; +} + +void xgene_enet_set_ethtool_ops(struct net_device *netdev); + +#endif /* __XGENE_ENET_MAIN_H__ */ |