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fixed comments to follow UEFI Spec 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6466 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jgong5 2008-11-12 02:27:50 +00:00
parent 9beb888e7c
commit 83497f5d1f
1 changed files with 82 additions and 0 deletions
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82
MdePkg/Include/Protocol/Ip4.h
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@ -159,6 +159,11 @@ typedef struct {
/**
Gets the current operational settings for this instance of the EFI IPv4 Protocol driver.
The GetModeData() function returns the current operational mode data for this
driver instance. The data fields in EFI_IP4_MODE_DATA are read only. This
function is used optionally to retrieve the operational mode data of underlying
networks or drivers.
@param This Pointer to the EFI_IP4_PROTOCOL instance.
@param Ip4ModeData Pointer to the EFI IPv4 Protocol mode data structure.
@ -181,6 +186,26 @@ EFI_STATUS
/**
Assigns an IPv4 address and subnet mask to this EFI IPv4 Protocol driver instance.
The Configure() function is used to set, change, or reset the operational
parameters and filter settings for this EFI IPv4 Protocol instance. Until these
parameters have been set, no network traffic can be sent or received by this
instance. Once the parameters have been reset (by calling this function with
IpConfigData set to NULL), no more traffic can be sent or received until these
parameters have been set again. Each EFI IPv4 Protocol instance can be started
and stopped independently of each other by enabling or disabling their receive
filter settings with the Configure() function.
When IpConfigData.UseDefaultAddress is set to FALSE, the new station address will
be appended as an alias address into the addresses list in the EFI IPv4 Protocol
driver. While set to TRUE, Configure() will trigger the EFI_IP4_CONFIG_PROTOCOL
to retrieve the default IPv4 address if it is not available yet. Clients could
frequently call GetModeData() to check the status to ensure that the default IPv4
address is ready.
If operational parameters are reset or changed, any pending transmit and receive
requests will be cancelled. Their completion token status will be set to EFI_ABORTED
and their events will be signaled.
@param This Pointer to the EFI_IP4_PROTOCOL instance.
@param IpConfigData Pointer to the EFI IPv4 Protocol configuration data structure.
@ -211,6 +236,12 @@ EFI_STATUS
/**
Joins and leaves multicast groups.
The Groups() function is used to join and leave multicast group sessions. Joining
a group will enable reception of matching multicast packets. Leaving a group will
disable the multicast packet reception.
If JoinFlag is FALSE and GroupAddress is NULL, all joined groups will be left.
@param This Pointer to the EFI_IP4_PROTOCOL instance.
@param JoinFlag Set to TRUE to join the multicast group session and FALSE to leave.
@ -244,6 +275,27 @@ EFI_STATUS
/**
Adds and deletes routing table entries.
The Routes() function adds a route to or deletes a route from the routing table.
Routes are determined by comparing the SubnetAddress with the destination IPv4
address arithmetically AND-ed with the SubnetMask. The gateway address must be
on the same subnet as the configured station address.
The default route is added with SubnetAddress and SubnetMask both set to 0.0.0.0.
The default route matches all destination IPv4 addresses that do not match any
other routes.
A GatewayAddress that is zero is a nonroute. Packets are sent to the destination
IP address if it can be found in the ARP cache or on the local subnet. One automatic
nonroute entry will be inserted into the routing table for outgoing packets that
are addressed to a local subnet (gateway address of 0.0.0.0).
Each EFI IPv4 Protocol instance has its own independent routing table. Those EFI
IPv4 Protocol instances that use the default IPv4 address will also have copies
of the routing table that was provided by the EFI_IP4_CONFIG_PROTOCOL, and these
copies will be updated whenever the EIF IPv4 Protocol driver reconfigures its
instances. As a result, client modification to the routing table will be lost.
@param This Pointer to the EFI_IP4_PROTOCOL instance.
@param DeleteRoute Set to TRUE to delete this route from the routing table. Set to
FALSE to add this route to the routing table. SubnetAddress
@ -283,6 +335,10 @@ EFI_STATUS
/**
Places outgoing data packets into the transmit queue.
The Transmit() function places a sending request in the transmit queue of this
EFI IPv4 Protocol instance. Whenever the packet in the token is sent out or some
errors occur, the event in the token will be signaled and the status is updated.
@param This Pointer to the EFI_IP4_PROTOCOL instance.
@param Token Pointer to the transmit token.
@ -314,6 +370,14 @@ EFI_STATUS
/**
Places a receiving request into the receiving queue.
The Receive() function places a completion token into the receive packet queue.
This function is always asynchronous.
The Token.Event field in the completion token must be filled in by the caller
and cannot be NULL. When the receive operation completes, the EFI IPv4 Protocol
driver updates the Token.Status and Token.Packet.RxData fields and the Token.Event
is signaled.
@param This Pointer to the EFI_IP4_PROTOCOL instance.
@param Token Pointer to a token that is associated with the receive data descriptor.
@ -345,6 +409,13 @@ EFI_STATUS
/**
Abort an asynchronous transmit or receive request.
The Cancel() function is used to abort a pending transmit or receive request.
If the token is in the transmit or receive request queues, after calling this
function, Token->Status will be set to EFI_ABORTED and then Token->Event will
be signaled. If the token is not in one of the queues, which usually means the
asynchronous operation has completed, this function will not signal the token
and EFI_NOT_FOUND is returned.
@param This Pointer to the EFI_IP4_PROTOCOL instance.
@param Token Pointer to a token that has been issued by
@ -374,6 +445,17 @@ EFI_STATUS
/**
Polls for incoming data packets and processes outgoing data packets.
The Poll() function polls for incoming data packets and processes outgoing data
packets. Network drivers and applications can call the EFI_IP4_PROTOCOL.Poll()
function to increase the rate that data packets are moved between the communications
device and the transmit and receive queues.
In some systems the periodic timer event may not poll the underlying communications
device fast enough to transmit and/or receive all data packets without missing
incoming packets or dropping outgoing packets. Drivers and applications that are
experiencing packet loss should try calling the EFI_IP4_PROTOCOL.Poll() function
more often.
@param This Pointer to the EFI_IP4_PROTOCOL instance.