Changeset 609243f4 in mainline for uspace/lib/c/include/net/device.h

Timestamp:

2011-10-07T15:46:01Z (13 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

e2c50e1

Parents:

f51b1d3

Message:

cherrypick general networking improvements from lp:~helenos-nicf/helenos/nicf (after sanitization)
remove obsolete networking drivers
this renders the networking non-functional for the time being

File:

• uspace/lib/c/include/net/device.h (modified) (4 diffs)

uspace/lib/c/include/net/device.h

@@ -1 +1 @@
 /*
  * Copyright (c) 2009 Lukas Mejdrech
+ * Copyright (c) 2011 Radim Vansa
  * All rights reserved.
  *
@@ -39 +40 @@
 
 #include <adt/int_map.h>
+#include <net/eth_phys.h>
+
+/** Ethernet address length. */
+#define ETH_ADDR  6
+
+/** MAC printing format */
+#define PRIMAC  "%02x:%02x:%02x:%02x:%02x:%02x"
+
+/** MAC arguments */
+#define ARGSMAC(__a) \
+        (__a)[0], (__a)[1], (__a)[2], (__a)[3], (__a)[4], (__a)[5]
 
 /** Device identifier to generic type map declaration. */
-#define DEVICE_MAP_DECLARE      INT_MAP_DECLARE
+#define DEVICE_MAP_DECLARE  INT_MAP_DECLARE
 
 /** Device identifier to generic type map implementation. */
-#define DEVICE_MAP_IMPLEMENT    INT_MAP_IMPLEMENT
+#define DEVICE_MAP_IMPLEMENT  INT_MAP_IMPLEMENT
+
+/** Max length of any hw nic address (currently only eth) */
+#define NIC_MAX_ADDRESS_LENGTH  16
 
 /** Invalid device identifier. */
-#define DEVICE_INVALID_ID       (-1)
+#define NIC_DEVICE_INVALID_ID  (-1)
+
+#define NIC_VENDOR_MAX_LENGTH         64
+#define NIC_MODEL_MAX_LENGTH          64
+#define NIC_PART_NUMBER_MAX_LENGTH    64
+#define NIC_SERIAL_NUMBER_MAX_LENGTH  64
+
+/**
+ * The bitmap uses single bit for each of the 2^12 = 4096 possible VLAN tags.
+ * This means its size is 4096/8 = 512 bytes.
+ */
+#define NIC_VLAN_BITMAP_SIZE  512
+
+#define NIC_DEVICE_PRINT_FMT  "%x"
 
 /** Device identifier type. */
-typedef int device_id_t;
-
-/** Device state type. */
-typedef enum device_state device_state_t;
-
-/** Type definition of the device usage statistics.
- * @see device_stats
- */
-typedef struct device_stats device_stats_t;
+typedef int nic_device_id_t;
+
+/**
+ * Structure covering the MAC address.
+ */
+typedef struct nic_address {
+        uint8_t address[ETH_ADDR];
+} nic_address_t;
 
 /** Device state. */
-enum device_state {
-        /** Device not present or not initialized. */
-        NETIF_NULL = 0,
-        /** Device present and stopped. */
-        NETIF_STOPPED,
-        /** Device present and active. */
-        NETIF_ACTIVE,
-        /** Device present but unable to transmit. */
-        NETIF_CARRIER_LOST
-};
+typedef enum nic_device_state {
+        /**
+         * Device present and stopped. Moving device to this state means to discard
+         * all settings and WOL virtues, rebooting the NIC to state as if the
+         * computer just booted (or the NIC was just inserted in case of removable
+         * NIC).
+         */
+        NIC_STATE_STOPPED,
+        /**
+         * If the NIC is in this state no packets (frames) are transmitted nor
+         * received. However, the settings are not restarted. You can use this state
+         * to temporarily disable transmition/reception or atomically (with respect
+         * to incoming/outcoming packets) change frames acceptance etc.
+         */
+        NIC_STATE_DOWN,
+        /** Device is normally operating. */
+        NIC_STATE_ACTIVE,
+        /** Just a constant to limit the state numbers */
+        NIC_STATE_MAX,
+} nic_device_state_t;
+
+/**
+ * Channel operating mode used on the medium.
+ */
+typedef enum {
+        NIC_CM_UNKNOWN,
+        NIC_CM_FULL_DUPLEX,
+        NIC_CM_HALF_DUPLEX,
+        NIC_CM_SIMPLEX
+} nic_channel_mode_t;
+
+/**
+ * Role for the device (used e.g. for 1000Gb ethernet)
+ */
+typedef enum {
+        NIC_ROLE_UNKNOWN,
+        NIC_ROLE_AUTO,
+        NIC_ROLE_MASTER,
+        NIC_ROLE_SLAVE
+} nic_role_t;
+
+/**
+ * Current state of the cable in the device
+ */
+typedef enum {
+        NIC_CS_UNKNOWN,
+        NIC_CS_PLUGGED,
+        NIC_CS_UNPLUGGED
+} nic_cable_state_t;
+
+/**
+ * Result of the requested operation
+ */
+typedef enum {
+        /** Successfully disabled */
+        NIC_RESULT_DISABLED,
+        /** Successfully enabled */
+        NIC_RESULT_ENABLED,
+        /** Not supported at all */
+        NIC_RESULT_NOT_SUPPORTED,
+        /** Temporarily not available */
+        NIC_RESULT_NOT_AVAILABLE,
+        /** Result extensions */
+        NIC_RESULT_FIRST_EXTENSION
+} nic_result_t;
 
 /** Device usage statistics. */
-struct device_stats {
-        /** Total packets received. */
+typedef struct nic_device_stats {
+        /** Total packets received (accepted). */
         unsigned long receive_packets;
         /** Total packets transmitted. */
         unsigned long send_packets;
-        /** Total bytes received. */
+        /** Total bytes received (accepted). */
         unsigned long receive_bytes;
         /** Total bytes transmitted. */
@@ -86 +168 @@
         /** Packet transmition problems counter. */
         unsigned long send_errors;
-        /** No space in buffers counter. */
+        /** Number of frames dropped due to insufficient space in RX buffers */
         unsigned long receive_dropped;
-        /** No space available counter. */
+        /** Number of frames dropped due to insufficient space in TX buffers */
         unsigned long send_dropped;
-        /** Total multicast packets received. */
-        unsigned long multicast;
+        /** Total multicast packets received (accepted). */
+        unsigned long receive_multicast;
+        /** Total broadcast packets received (accepted). */
+        unsigned long receive_broadcast;
         /** The number of collisions due to congestion on the medium. */
         unsigned long collisions;
+        /** Unicast packets received but not accepted (filtered) */
+        unsigned long receive_filtered_unicast;
+        /** Multicast packets received but not accepted (filtered) */
+        unsigned long receive_filtered_multicast;
+        /** Broadcast packets received but not accepted (filtered) */
+        unsigned long receive_filtered_broadcast;
 
         /* detailed receive_errors */
@@ -129 +219 @@
         /** Total compressed packet transmitted. */
         unsigned long send_compressed;
-};
+} nic_device_stats_t;
+
+/**
+ * Information about the NIC that never changes - name, vendor, model,
+ * capabilites and so on.
+ */
+typedef struct nic_device_info {
+        /* Device identification */
+        char vendor_name[NIC_VENDOR_MAX_LENGTH];
+        char model_name[NIC_MODEL_MAX_LENGTH];
+        char part_number[NIC_PART_NUMBER_MAX_LENGTH];
+        char serial_number[NIC_SERIAL_NUMBER_MAX_LENGTH];
+        uint16_t vendor_id;
+        uint16_t device_id;
+        uint16_t subsystem_vendor_id;
+        uint16_t subsystem_id;
+        /* Device capabilities */
+        uint16_t ethernet_support[ETH_PHYS_LAYERS];
+
+        /** The mask of all modes which the device can advertise
+         *
+         *  see ETH_AUTONEG_ macros in net/eth_phys.h of libc
+         */
+        uint32_t autoneg_support;
+} nic_device_info_t;
+
+/**
+ * Specifies which unicast frames is the NIC receiving.
+ */
+typedef enum nic_unicast_mode {
+        NIC_UNICAST_UNKNOWN,
+        /** No unicast frames are received */
+        NIC_UNICAST_BLOCKED,
+        /** Only the frames with this NIC's MAC as destination are received */
+        NIC_UNICAST_DEFAULT,
+        /**
+         * Both frames with this NIC's MAC and those specified in the list are
+         * received
+         */
+        NIC_UNICAST_LIST,
+        /** All unicast frames are received */
+        NIC_UNICAST_PROMISC
+} nic_unicast_mode_t;
+
+typedef enum nic_multicast_mode {
+        NIC_MULTICAST_UNKNOWN,
+        /** No multicast frames are received */
+        NIC_MULTICAST_BLOCKED,
+        /** Frames with multicast addresses specified in this list are received */
+        NIC_MULTICAST_LIST,
+        /** All multicast frames are received */
+        NIC_MULTICAST_PROMISC
+} nic_multicast_mode_t;
+
+typedef enum nic_broadcast_mode {
+        NIC_BROADCAST_UNKNOWN,
+        /** Broadcast frames are dropped */
+        NIC_BROADCAST_BLOCKED,
+        /** Broadcast frames are received */
+        NIC_BROADCAST_ACCEPTED
+} nic_broadcast_mode_t;
+
+/**
+ * Structure covering the bitmap with VLAN tags.
+ */
+typedef struct nic_vlan_mask {
+        uint8_t bitmap[NIC_VLAN_BITMAP_SIZE];
+} nic_vlan_mask_t;
+
+/* WOL virtue identifier */
+typedef unsigned int nic_wv_id_t;
+
+/**
+ * WOL virtue types defining the interpretation of data passed to the virtue.
+ * Those tagged with S can have only single virtue active at one moment, those
+ * tagged with M can have multiple ones.
+ */
+typedef enum nic_wv_type {
+        /**
+         * Used for deletion of the virtue - in this case the mask, data and length
+         * arguments are ignored.
+         */
+        NIC_WV_NONE,
+        /** S
+         * Enabled <=> wakeup upon link change
+         */
+        NIC_WV_LINK_CHANGE,
+        /** S
+         * If this virtue is set up, wakeup can be issued by a magic packet frame.
+         * If the data argument is not NULL, it must contain
+         * nic_wv_magic_packet_data structure with the SecureOn password.
+         */
+        NIC_WV_MAGIC_PACKET,
+        /** M
+         * If the virtue is set up, wakeup can be issued by a frame targeted to
+         * device with MAC address specified in data. The data must contain
+         * nic_address_t structure.
+         */
+        NIC_WV_DESTINATION,
+        /** S
+         * Enabled <=> wakeup upon receiving broadcast frame
+         */
+        NIC_WV_BROADCAST,
+        /** S
+         * Enabled <=> wakeup upon receiving ARP Request
+         */
+        NIC_WV_ARP_REQUEST,
+        /** M
+         * If enabled, the wakeup is issued upon receiving frame with an IPv4 packet
+         * with IPv4 address specified in data. The data must contain
+         * nic_wv_ipv4_data structure.
+         */
+        NIC_WV_DIRECTED_IPV4,
+        /** M
+         * If enabled, the wakeup is issued upon receiving frame with an IPv4 packet
+         * with IPv6 address specified in data. The data must contain
+         * nic_wv_ipv6_data structure.
+         */
+        NIC_WV_DIRECTED_IPV6,
+        /** M
+         * First length/2 bytes in the argument are interpreted as mask, second
+         * length/2 bytes are interpreted as content.
+         * If enabled, the wakeup is issued upon receiving frame where the bytes
+         * with non-zero value in the mask equal to those in the content.
+         */
+        NIC_WV_FULL_MATCH,
+        /**
+         * Dummy value, do not use.
+         */
+        NIC_WV_MAX
+} nic_wv_type_t;
+
+/**
+ * Specifies the interrupt/polling mode used by the driver and NIC
+ */
+typedef enum nic_poll_mode {
+        /**
+         * NIC issues interrupts upon events.
+         */
+        NIC_POLL_IMMEDIATE,
+        /**
+         * Some uspace app calls nic_poll_now(...) in order to check the NIC state
+         * - no interrupts are received from the NIC.
+         */
+        NIC_POLL_ON_DEMAND,
+        /**
+         * The driver itself issues a poll request in a periodic manner. It is
+         * allowed to use hardware timer if the NIC supports it.
+         */
+        NIC_POLL_PERIODIC,
+        /**
+         * The driver itself issued a poll request in a periodic manner. The driver
+         * must create software timer, internal hardware timer of NIC must not be
+         * used even if the NIC supports it.
+         */
+        NIC_POLL_SOFTWARE_PERIODIC
+} nic_poll_mode_t;
+
+static inline const char *nic_device_state_to_string(nic_device_state_t state)
+{
+        switch (state) {
+        case NIC_STATE_STOPPED:
+                return "stopped";
+        case NIC_STATE_DOWN:
+                return "down";
+        case NIC_STATE_ACTIVE:
+                return "active";
+        default:
+                return "undefined";
+        }
+}
 
 #endif