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Simplify RX data path.

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Kill off the static single net device and move to proper dynamic
registration (which we need with the new device model).

Break the (flawed) assumption that all network-layer protocols can use
ARP; such network-layer protocols (i.e. IPv4) must now register as an ARP
protocol using ARP_NET_PROTOCOL() and provide a single method for checking
the existence of a local network-layer address.
This commit is contained in:
Michael Brown
2006-06-17 22:36:27 +00:00
parent 8aeead7c1c
commit 3c8aafa209
12 changed files with 353 additions and 409 deletions
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14
src/net/aoe.c
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@@ -87,7 +87,6 @@ static int aoe_send_command ( struct aoe_session *aoe ) {
data_out_len );
if ( ! pkb )
return -ENOMEM;
pkb->net_protocol = &aoe_protocol;
pkb_reserve ( pkb, ETH_HLEN );
aoehdr = pkb_put ( pkb, sizeof ( *aoehdr ) );
aoecmd = pkb_put ( pkb, sizeof ( *aoecmd ) );
@@ -117,7 +116,7 @@ static int aoe_send_command ( struct aoe_session *aoe ) {
/* Send packet */
start_timer ( &aoe->timer );
return net_transmit ( pkb, aoe->netdev, &aoe_protocol, aoe->target );
return net_tx ( pkb, aoe->netdev, &aoe_protocol, aoe->target );
}
/**
@@ -209,13 +208,15 @@ static int aoe_rx_response ( struct aoe_session *aoe, struct aoehdr *aoehdr,
* Process incoming AoE packets
*
* @v pkb Packet buffer
* @v netdev Network device
* @v ll_source Link-layer source address
* @ret rc Return status code
*
*/
static int aoe_rx ( struct pk_buff *pkb ) {
static int aoe_rx ( struct pk_buff *pkb, struct net_device *netdev __unused,
const void *ll_source ) {
struct aoehdr *aoehdr = pkb->data;
unsigned int len = pkb_len ( pkb );
struct ethhdr *ethhdr = pkb_push ( pkb, sizeof ( *ethhdr ) );
struct aoe_session *aoe;
int rc = 0;
@@ -241,8 +242,7 @@ static int aoe_rx ( struct pk_buff *pkb ) {
continue;
if ( ntohl ( aoehdr->tag ) != aoe->tag )
continue;
memcpy ( aoe->target, ethhdr->h_source,
sizeof ( aoe->target ) );
memcpy ( aoe->target, ll_source, sizeof ( aoe->target ) );
rc = aoe_rx_response ( aoe, aoehdr, len );
break;
}
@@ -256,7 +256,7 @@ static int aoe_rx ( struct pk_buff *pkb ) {
struct net_protocol aoe_protocol = {
.name = "AoE",
.net_proto = htons ( ETH_P_AOE ),
.rx_process = aoe_rx,
.rx = aoe_rx,
};
NET_PROTOCOL ( aoe_protocol );