~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/net/dsa/dsa_priv.h

Version: ~ [ linux-5.2-rc1 ] ~ [ linux-5.1.2 ] ~ [ linux-5.0.16 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.43 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.119 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.176 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.179 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.139 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.67 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.39.4 ] ~ [ linux-2.6.38.8 ] ~ [ linux-2.6.37.6 ] ~ [ linux-2.6.36.4 ] ~ [ linux-2.6.35.14 ] ~ [ linux-2.6.34.15 ] ~ [ linux-2.6.33.20 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  * net/dsa/dsa_priv.h - Hardware switch handling
  3  * Copyright (c) 2008-2009 Marvell Semiconductor
  4  *
  5  * This program is free software; you can redistribute it and/or modify
  6  * it under the terms of the GNU General Public License as published by
  7  * the Free Software Foundation; either version 2 of the License, or
  8  * (at your option) any later version.
  9  */
 10 
 11 #ifndef __DSA_PRIV_H
 12 #define __DSA_PRIV_H
 13 
 14 #include <linux/list.h>
 15 #include <linux/phy.h>
 16 #include <linux/timer.h>
 17 #include <linux/workqueue.h>
 18 #include <net/dsa.h>
 19 
 20 struct dsa_switch {
 21         /*
 22          * Parent switch tree, and switch index.
 23          */
 24         struct dsa_switch_tree  *dst;
 25         int                     index;
 26 
 27         /*
 28          * Configuration data for this switch.
 29          */
 30         struct dsa_chip_data    *pd;
 31 
 32         /*
 33          * The used switch driver.
 34          */
 35         struct dsa_switch_driver        *drv;
 36 
 37         /*
 38          * Reference to mii bus to use.
 39          */
 40         struct mii_bus          *master_mii_bus;
 41 
 42         /*
 43          * Slave mii_bus and devices for the individual ports.
 44          */
 45         u32                     dsa_port_mask;
 46         u32                     phys_port_mask;
 47         struct mii_bus          *slave_mii_bus;
 48         struct net_device       *ports[DSA_MAX_PORTS];
 49 };
 50 
 51 struct dsa_switch_tree {
 52         /*
 53          * Configuration data for the platform device that owns
 54          * this dsa switch tree instance.
 55          */
 56         struct dsa_platform_data        *pd;
 57 
 58         /*
 59          * Reference to network device to use, and which tagging
 60          * protocol to use.
 61          */
 62         struct net_device       *master_netdev;
 63         __be16                  tag_protocol;
 64 
 65         /*
 66          * The switch and port to which the CPU is attached.
 67          */
 68         s8                      cpu_switch;
 69         s8                      cpu_port;
 70 
 71         /*
 72          * Link state polling.
 73          */
 74         int                     link_poll_needed;
 75         struct work_struct      link_poll_work;
 76         struct timer_list       link_poll_timer;
 77 
 78         /*
 79          * Data for the individual switch chips.
 80          */
 81         struct dsa_switch       *ds[DSA_MAX_SWITCHES];
 82 };
 83 
 84 static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
 85 {
 86         return !!(ds->index == ds->dst->cpu_switch && p == ds->dst->cpu_port);
 87 }
 88 
 89 static inline u8 dsa_upstream_port(struct dsa_switch *ds)
 90 {
 91         struct dsa_switch_tree *dst = ds->dst;
 92 
 93         /*
 94          * If this is the root switch (i.e. the switch that connects
 95          * to the CPU), return the cpu port number on this switch.
 96          * Else return the (DSA) port number that connects to the
 97          * switch that is one hop closer to the cpu.
 98          */
 99         if (dst->cpu_switch == ds->index)
100                 return dst->cpu_port;
101         else
102                 return ds->pd->rtable[dst->cpu_switch];
103 }
104 
105 struct dsa_slave_priv {
106         /*
107          * The linux network interface corresponding to this
108          * switch port.
109          */
110         struct net_device       *dev;
111 
112         /*
113          * Which switch this port is a part of, and the port index
114          * for this port.
115          */
116         struct dsa_switch       *parent;
117         u8                      port;
118 
119         /*
120          * The phylib phy_device pointer for the PHY connected
121          * to this port.
122          */
123         struct phy_device       *phy;
124 };
125 
126 struct dsa_switch_driver {
127         struct list_head        list;
128 
129         __be16                  tag_protocol;
130         int                     priv_size;
131 
132         /*
133          * Probing and setup.
134          */
135         char    *(*probe)(struct mii_bus *bus, int sw_addr);
136         int     (*setup)(struct dsa_switch *ds);
137         int     (*set_addr)(struct dsa_switch *ds, u8 *addr);
138 
139         /*
140          * Access to the switch's PHY registers.
141          */
142         int     (*phy_read)(struct dsa_switch *ds, int port, int regnum);
143         int     (*phy_write)(struct dsa_switch *ds, int port,
144                              int regnum, u16 val);
145 
146         /*
147          * Link state polling and IRQ handling.
148          */
149         void    (*poll_link)(struct dsa_switch *ds);
150 
151         /*
152          * ethtool hardware statistics.
153          */
154         void    (*get_strings)(struct dsa_switch *ds, int port, uint8_t *data);
155         void    (*get_ethtool_stats)(struct dsa_switch *ds,
156                                      int port, uint64_t *data);
157         int     (*get_sset_count)(struct dsa_switch *ds);
158 };
159 
160 /* dsa.c */
161 extern char dsa_driver_version[];
162 void register_switch_driver(struct dsa_switch_driver *type);
163 void unregister_switch_driver(struct dsa_switch_driver *type);
164 
165 /* slave.c */
166 void dsa_slave_mii_bus_init(struct dsa_switch *ds);
167 struct net_device *dsa_slave_create(struct dsa_switch *ds,
168                                     struct device *parent,
169                                     int port, char *name);
170 
171 /* tag_dsa.c */
172 netdev_tx_t dsa_xmit(struct sk_buff *skb, struct net_device *dev);
173 
174 /* tag_edsa.c */
175 netdev_tx_t edsa_xmit(struct sk_buff *skb, struct net_device *dev);
176 
177 /* tag_trailer.c */
178 netdev_tx_t trailer_xmit(struct sk_buff *skb, struct net_device *dev);
179 
180 
181 #endif
182 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp