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Add trivial net device statistics (TX and RX packet count), reported 

via UNDI API and also by ifstat command; may be useful for debugging.
This commit is contained in:
Michael Brown 2007-07-03 00:15:53 +01:00
parent 071356d976
commit 4968caab82
4 changed files with 38 additions and 10 deletions
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13
src/include/gpxe/netdevice.h
View File

@ -128,6 +128,17 @@ struct ll_protocol {
const uint8_t *ll_broadcast;
};
/**
* Network device statistics
*
*/
struct net_device_stats {
/** Count of successfully completed transmissions */
unsigned int tx_count;
/** Count of successfully received packets */
unsigned int rx_count;
};
/**
* A network device
*
@ -215,6 +226,8 @@ struct net_device {
struct list_head tx_queue;
/** RX packet queue */
struct list_head rx_queue;
/** Device statistics */
struct net_device_stats stats;
/** Driver private data */
void *priv;

21
src/interface/pxe/pxe_undi.c
View File

@ -343,28 +343,33 @@ PXENV_EXIT_t pxenv_undi_get_information ( struct s_PXENV_UNDI_GET_INFORMATION
/* PXENV_UNDI_GET_STATISTICS
*
* Status: won't implement (would require driver API changes for no
* real benefit)
* Status: working
*/
PXENV_EXIT_t pxenv_undi_get_statistics ( struct s_PXENV_UNDI_GET_STATISTICS
*undi_get_statistics ) {
DBG ( "PXENV_UNDI_GET_STATISTICS" );
undi_get_statistics->Status = PXENV_STATUS_UNSUPPORTED;
return PXENV_EXIT_FAILURE;
undi_get_statistics->XmtGoodFrames = pxe_netdev->stats.tx_count;
undi_get_statistics->RcvGoodFrames = pxe_netdev->stats.rx_count;
undi_get_statistics->RcvCRCErrors = 0;
undi_get_statistics->RcvResourceErrors = 0;
undi_get_statistics->Status = PXENV_STATUS_SUCCESS;
return PXENV_EXIT_SUCCESS;
}
/* PXENV_UNDI_CLEAR_STATISTICS
*
* Status: won't implement (would require driver API changes for no
* real benefit)
* Status: working
*/
PXENV_EXIT_t pxenv_undi_clear_statistics ( struct s_PXENV_UNDI_CLEAR_STATISTICS
*undi_clear_statistics ) {
DBG ( "PXENV_UNDI_CLEAR_STATISTICS" );
undi_clear_statistics->Status = PXENV_STATUS_UNSUPPORTED;
return PXENV_EXIT_FAILURE;
memset ( &pxe_netdev->stats, 0, sizeof ( pxe_netdev->stats ) );
undi_clear_statistics->Status = PXENV_STATUS_SUCCESS;
return PXENV_EXIT_SUCCESS;
}
/* PXENV_UNDI_INITIATE_DIAGS

9
src/net/netdevice.c
View File

@ -95,8 +95,12 @@ void netdev_tx_complete ( struct net_device *netdev, struct io_buffer *iobuf ) {
assert ( iobuf->list.next != NULL );
assert ( iobuf->list.prev != NULL );
/* Dequeue and free I/O buffer */
list_del ( &iobuf->list );
free_iob ( iobuf );
/* Update statistics counter */
netdev->stats.tx_count++;
}
/**
@ -140,7 +144,12 @@ static void netdev_tx_flush ( struct net_device *netdev ) {
void netdev_rx ( struct net_device *netdev, struct io_buffer *iobuf ) {
DBGC ( netdev, "NETDEV %p received %p (%p+%zx)\n",
netdev, iobuf, iobuf->data, iob_len ( iobuf ) );
/* Enqueue packet */
list_add_tail ( &iobuf->list, &netdev->rx_queue );
/* Update statistics counter */
netdev->stats.rx_count++;
}
/**

5
src/usr/ifmgmt.c
View File

@ -61,7 +61,8 @@ void ifclose ( struct net_device *netdev ) {
* @v netdev Network device
*/
void ifstat ( struct net_device *netdev ) {
printf ( "%s: %s on %s (%s)\n",
printf ( "%s: %s on %s (%s) TX:%d RX:%d\n",
netdev->name, netdev_hwaddr ( netdev ), netdev->dev->name,
( ( netdev->state & NETDEV_OPEN ) ? "open" : "closed" ) );
( ( netdev->state & NETDEV_OPEN ) ? "open" : "closed" ),
netdev->stats.tx_count, netdev->stats.rx_count );
}