233 lines
6.4 KiB
C
233 lines
6.4 KiB
C
/*
|
|
* NetCP driver local header
|
|
*
|
|
* Copyright (C) 2014 Texas Instruments Incorporated
|
|
* Authors: Sandeep Nair <sandeep_n@ti.com>
|
|
* Sandeep Paulraj <s-paulraj@ti.com>
|
|
* Cyril Chemparathy <cyril@ti.com>
|
|
* Santosh Shilimkar <santosh.shilimkar@ti.com>
|
|
* Wingman Kwok <w-kwok2@ti.com>
|
|
* Murali Karicheri <m-karicheri2@ti.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 version 2.
|
|
*
|
|
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
|
|
* kind, whether express or implied; without even the implied warranty
|
|
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
#ifndef __NETCP_H__
|
|
#define __NETCP_H__
|
|
|
|
#include <linux/netdevice.h>
|
|
#include <linux/soc/ti/knav_dma.h>
|
|
|
|
/* Maximum Ethernet frame size supported by Keystone switch */
|
|
#define NETCP_MAX_FRAME_SIZE 9504
|
|
|
|
#define SGMII_LINK_MAC_MAC_AUTONEG 0
|
|
#define SGMII_LINK_MAC_PHY 1
|
|
#define SGMII_LINK_MAC_MAC_FORCED 2
|
|
#define SGMII_LINK_MAC_FIBER 3
|
|
#define SGMII_LINK_MAC_PHY_NO_MDIO 4
|
|
#define XGMII_LINK_MAC_PHY 10
|
|
#define XGMII_LINK_MAC_MAC_FORCED 11
|
|
|
|
struct netcp_device;
|
|
|
|
struct netcp_tx_pipe {
|
|
struct netcp_device *netcp_device;
|
|
void *dma_queue;
|
|
unsigned int dma_queue_id;
|
|
/* To port for packet forwarded to switch. Used only by ethss */
|
|
u8 switch_to_port;
|
|
#define SWITCH_TO_PORT_IN_TAGINFO BIT(0)
|
|
u8 flags;
|
|
void *dma_channel;
|
|
const char *dma_chan_name;
|
|
};
|
|
|
|
#define ADDR_NEW BIT(0)
|
|
#define ADDR_VALID BIT(1)
|
|
|
|
enum netcp_addr_type {
|
|
ADDR_ANY,
|
|
ADDR_DEV,
|
|
ADDR_UCAST,
|
|
ADDR_MCAST,
|
|
ADDR_BCAST
|
|
};
|
|
|
|
struct netcp_addr {
|
|
struct netcp_intf *netcp;
|
|
unsigned char addr[ETH_ALEN];
|
|
enum netcp_addr_type type;
|
|
unsigned int flags;
|
|
struct list_head node;
|
|
};
|
|
|
|
struct netcp_intf {
|
|
struct device *dev;
|
|
struct device *ndev_dev;
|
|
struct net_device *ndev;
|
|
bool big_endian;
|
|
unsigned int tx_compl_qid;
|
|
void *tx_pool;
|
|
struct list_head txhook_list_head;
|
|
unsigned int tx_pause_threshold;
|
|
void *tx_compl_q;
|
|
|
|
unsigned int tx_resume_threshold;
|
|
void *rx_queue;
|
|
void *rx_pool;
|
|
struct list_head rxhook_list_head;
|
|
unsigned int rx_queue_id;
|
|
void *rx_fdq[KNAV_DMA_FDQ_PER_CHAN];
|
|
u32 rx_buffer_sizes[KNAV_DMA_FDQ_PER_CHAN];
|
|
struct napi_struct rx_napi;
|
|
struct napi_struct tx_napi;
|
|
|
|
void *rx_channel;
|
|
const char *dma_chan_name;
|
|
u32 rx_pool_size;
|
|
u32 rx_pool_region_id;
|
|
u32 tx_pool_size;
|
|
u32 tx_pool_region_id;
|
|
struct list_head module_head;
|
|
struct list_head interface_list;
|
|
struct list_head addr_list;
|
|
bool netdev_registered;
|
|
bool primary_module_attached;
|
|
|
|
/* Lock used for protecting Rx/Tx hook list management */
|
|
spinlock_t lock;
|
|
struct netcp_device *netcp_device;
|
|
struct device_node *node_interface;
|
|
|
|
/* DMA configuration data */
|
|
u32 msg_enable;
|
|
u32 rx_queue_depths[KNAV_DMA_FDQ_PER_CHAN];
|
|
};
|
|
|
|
#define NETCP_PSDATA_LEN KNAV_DMA_NUM_PS_WORDS
|
|
struct netcp_packet {
|
|
struct sk_buff *skb;
|
|
u32 *epib;
|
|
u32 *psdata;
|
|
unsigned int psdata_len;
|
|
struct netcp_intf *netcp;
|
|
struct netcp_tx_pipe *tx_pipe;
|
|
bool rxtstamp_complete;
|
|
void *ts_context;
|
|
|
|
int (*txtstamp_complete)(void *ctx, struct netcp_packet *pkt);
|
|
};
|
|
|
|
static inline u32 *netcp_push_psdata(struct netcp_packet *p_info,
|
|
unsigned int bytes)
|
|
{
|
|
u32 *buf;
|
|
unsigned int words;
|
|
|
|
if ((bytes & 0x03) != 0)
|
|
return NULL;
|
|
words = bytes >> 2;
|
|
|
|
if ((p_info->psdata_len + words) > NETCP_PSDATA_LEN)
|
|
return NULL;
|
|
|
|
p_info->psdata_len += words;
|
|
buf = &p_info->psdata[NETCP_PSDATA_LEN - p_info->psdata_len];
|
|
return buf;
|
|
}
|
|
|
|
static inline int netcp_align_psdata(struct netcp_packet *p_info,
|
|
unsigned int byte_align)
|
|
{
|
|
int padding;
|
|
|
|
switch (byte_align) {
|
|
case 0:
|
|
padding = -EINVAL;
|
|
break;
|
|
case 1:
|
|
case 2:
|
|
case 4:
|
|
padding = 0;
|
|
break;
|
|
case 8:
|
|
padding = (p_info->psdata_len << 2) % 8;
|
|
break;
|
|
case 16:
|
|
padding = (p_info->psdata_len << 2) % 16;
|
|
break;
|
|
default:
|
|
padding = (p_info->psdata_len << 2) % byte_align;
|
|
break;
|
|
}
|
|
return padding;
|
|
}
|
|
|
|
struct netcp_module {
|
|
const char *name;
|
|
struct module *owner;
|
|
bool primary;
|
|
|
|
/* probe/remove: called once per NETCP instance */
|
|
int (*probe)(struct netcp_device *netcp_device,
|
|
struct device *device, struct device_node *node,
|
|
void **inst_priv);
|
|
int (*remove)(struct netcp_device *netcp_device, void *inst_priv);
|
|
|
|
/* attach/release: called once per network interface */
|
|
int (*attach)(void *inst_priv, struct net_device *ndev,
|
|
struct device_node *node, void **intf_priv);
|
|
int (*release)(void *intf_priv);
|
|
int (*open)(void *intf_priv, struct net_device *ndev);
|
|
int (*close)(void *intf_priv, struct net_device *ndev);
|
|
int (*add_addr)(void *intf_priv, struct netcp_addr *naddr);
|
|
int (*del_addr)(void *intf_priv, struct netcp_addr *naddr);
|
|
int (*add_vid)(void *intf_priv, int vid);
|
|
int (*del_vid)(void *intf_priv, int vid);
|
|
int (*ioctl)(void *intf_priv, struct ifreq *req, int cmd);
|
|
|
|
/* used internally */
|
|
struct list_head module_list;
|
|
struct list_head interface_list;
|
|
};
|
|
|
|
int netcp_register_module(struct netcp_module *module);
|
|
void netcp_unregister_module(struct netcp_module *module);
|
|
void *netcp_module_get_intf_data(struct netcp_module *module,
|
|
struct netcp_intf *intf);
|
|
|
|
int netcp_txpipe_init(struct netcp_tx_pipe *tx_pipe,
|
|
struct netcp_device *netcp_device,
|
|
const char *dma_chan_name, unsigned int dma_queue_id);
|
|
int netcp_txpipe_open(struct netcp_tx_pipe *tx_pipe);
|
|
int netcp_txpipe_close(struct netcp_tx_pipe *tx_pipe);
|
|
|
|
typedef int netcp_hook_rtn(int order, void *data, struct netcp_packet *packet);
|
|
int netcp_register_txhook(struct netcp_intf *netcp_priv, int order,
|
|
netcp_hook_rtn *hook_rtn, void *hook_data);
|
|
int netcp_unregister_txhook(struct netcp_intf *netcp_priv, int order,
|
|
netcp_hook_rtn *hook_rtn, void *hook_data);
|
|
int netcp_register_rxhook(struct netcp_intf *netcp_priv, int order,
|
|
netcp_hook_rtn *hook_rtn, void *hook_data);
|
|
int netcp_unregister_rxhook(struct netcp_intf *netcp_priv, int order,
|
|
netcp_hook_rtn *hook_rtn, void *hook_data);
|
|
void *netcp_device_find_module(struct netcp_device *netcp_device,
|
|
const char *name);
|
|
|
|
/* SGMII functions */
|
|
int netcp_sgmii_reset(void __iomem *sgmii_ofs, int port);
|
|
int netcp_sgmii_get_port_link(void __iomem *sgmii_ofs, int port);
|
|
int netcp_sgmii_config(void __iomem *sgmii_ofs, int port, u32 interface);
|
|
|
|
/* XGBE SERDES init functions */
|
|
int netcp_xgbe_serdes_init(void __iomem *serdes_regs, void __iomem *xgbe_regs);
|
|
|
|
#endif /* __NETCP_H__ */
|