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-rw-r--r--src/interface/efi/efi_download.c4
-rw-r--r--src/interface/efi/efi_snp.c57
2 files changed, 31 insertions, 30 deletions
diff --git a/src/interface/efi/efi_download.c b/src/interface/efi/efi_download.c
index 80279f7f9..522276ace 100644
--- a/src/interface/efi/efi_download.c
+++ b/src/interface/efi/efi_download.c
@@ -26,6 +26,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <ipxe/iobuf.h>
#include <ipxe/xfer.h>
#include <ipxe/efi/efi.h>
+#include <ipxe/efi/efi_snp.h>
#include <ipxe/efi/efi_download.h>
/** iPXE download protocol GUID */
@@ -63,6 +64,8 @@ static void efi_download_close ( struct efi_download_file *file, int rc ) {
file->finish_callback ( file->context, EFIRC ( rc ) );
intf_shutdown ( &file->xfer, rc );
+
+ efi_snp_release();
}
/**
@@ -147,6 +150,7 @@ efi_download_start ( IPXE_DOWNLOAD_PROTOCOL *This __unused,
return EFIRC ( rc );
}
+ efi_snp_claim();
file->pos = 0;
file->data_callback = DataCallback;
file->finish_callback = FinishCallback;
diff --git a/src/interface/efi/efi_snp.c b/src/interface/efi/efi_snp.c
index fd3aad4cb..a301f3b48 100644
--- a/src/interface/efi/efi_snp.c
+++ b/src/interface/efi/efi_snp.c
@@ -67,6 +67,9 @@ static EFI_GUID efi_load_file_protocol_guid
/** List of SNP devices */
static LIST_HEAD ( efi_snp_devices );
+/** Network devices are currently claimed for use by iPXE */
+static int efi_snp_claimed;
+
/**
* Set EFI SNP mode state
*
@@ -83,7 +86,7 @@ static void efi_snp_set_state ( struct efi_snp_device *snpdev ) {
} else if ( ! netdev_is_open ( netdev ) ) {
/* Network device not opened; report as Started */
mode->State = EfiSimpleNetworkStarted;
- } else if ( ! netdev_rx_frozen ( netdev ) ) {
+ } else if ( efi_snp_claimed ) {
/* Network device opened but claimed for use by iPXE; report
* as Started to inhibit receive polling.
*/
@@ -162,7 +165,7 @@ efi_snp_start ( EFI_SIMPLE_NETWORK_PROTOCOL *snp ) {
DBGC2 ( snpdev, "SNPDEV %p START\n", snpdev );
/* Fail if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return EFI_NOT_READY;
snpdev->started = 1;
@@ -184,7 +187,7 @@ efi_snp_stop ( EFI_SIMPLE_NETWORK_PROTOCOL *snp ) {
DBGC2 ( snpdev, "SNPDEV %p STOP\n", snpdev );
/* Fail if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return EFI_NOT_READY;
snpdev->started = 0;
@@ -212,7 +215,7 @@ efi_snp_initialize ( EFI_SIMPLE_NETWORK_PROTOCOL *snp,
( ( unsigned long ) extra_tx_bufsize ) );
/* Fail if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return EFI_NOT_READY;
if ( ( rc = netdev_open ( snpdev->netdev ) ) != 0 ) {
@@ -242,7 +245,7 @@ efi_snp_reset ( EFI_SIMPLE_NETWORK_PROTOCOL *snp, BOOLEAN ext_verify ) {
snpdev, ( ext_verify ? "with" : "without" ) );
/* Fail if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return EFI_NOT_READY;
netdev_close ( snpdev->netdev );
@@ -272,7 +275,7 @@ efi_snp_shutdown ( EFI_SIMPLE_NETWORK_PROTOCOL *snp ) {
DBGC2 ( snpdev, "SNPDEV %p SHUTDOWN\n", snpdev );
/* Fail if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return EFI_NOT_READY;
netdev_close ( snpdev->netdev );
@@ -309,7 +312,7 @@ efi_snp_receive_filters ( EFI_SIMPLE_NETWORK_PROTOCOL *snp, UINT32 enable,
}
/* Fail if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return EFI_NOT_READY;
/* Lie through our teeth, otherwise MNP refuses to accept us */
@@ -335,7 +338,7 @@ efi_snp_station_address ( EFI_SIMPLE_NETWORK_PROTOCOL *snp, BOOLEAN reset,
( reset ? "reset" : ll_protocol->ntoa ( new ) ) );
/* Fail if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return EFI_NOT_READY;
/* Set the MAC address */
@@ -372,7 +375,7 @@ efi_snp_statistics ( EFI_SIMPLE_NETWORK_PROTOCOL *snp, BOOLEAN reset,
( reset ? " reset" : "" ) );
/* Fail if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return EFI_NOT_READY;
/* Gather statistics */
@@ -424,7 +427,7 @@ efi_snp_mcast_ip_to_mac ( EFI_SIMPLE_NETWORK_PROTOCOL *snp, BOOLEAN ipv6,
DBGC2 ( snpdev, "SNPDEV %p MCAST_IP_TO_MAC %s\n", snpdev, ip_str );
/* Fail if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return EFI_NOT_READY;
/* Try to hash the address */
@@ -461,7 +464,7 @@ efi_snp_nvdata ( EFI_SIMPLE_NETWORK_PROTOCOL *snp, BOOLEAN read,
DBGC2_HDA ( snpdev, offset, data, len );
/* Fail if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return EFI_NOT_READY;
return EFI_UNSUPPORTED;
@@ -484,7 +487,7 @@ efi_snp_get_status ( EFI_SIMPLE_NETWORK_PROTOCOL *snp,
DBGC2 ( snpdev, "SNPDEV %p GET_STATUS", snpdev );
/* Fail if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return EFI_NOT_READY;
/* Poll the network device */
@@ -583,7 +586,7 @@ efi_snp_transmit ( EFI_SIMPLE_NETWORK_PROTOCOL *snp,
DBGC2 ( snpdev, "\n" );
/* Fail if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return EFI_NOT_READY;
/* Sanity checks */
@@ -695,7 +698,7 @@ efi_snp_receive ( EFI_SIMPLE_NETWORK_PROTOCOL *snp,
( ( unsigned long ) *len ) );
/* Fail if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return EFI_NOT_READY;
/* Poll the network device */
@@ -759,7 +762,7 @@ static VOID EFIAPI efi_snp_wait_for_packet ( EFI_EVENT event,
return;
/* Do nothing if net device is currently claimed for use by iPXE */
- if ( ! netdev_rx_frozen ( snpdev->netdev ) )
+ if ( efi_snp_claimed )
return;
/* Poll the network device */
@@ -1184,23 +1187,17 @@ struct efi_snp_device * last_opened_snpdev ( void ) {
}
/**
- * Claim network devices for use by iPXE
+ * Set SNP claimed/released state
*
+ * @v claimed Network devices are claimed for use by iPXE
*/
-void efi_snp_claim ( void ) {
- struct net_device *netdev;
-
- for_each_netdev ( netdev )
- netdev_rx_unfreeze ( netdev );
-}
+void efi_snp_set_claimed ( int claimed ) {
+ struct efi_snp_device *snpdev;
-/**
- * Release network devices for use via SNP
- *
- */
-void efi_snp_release ( void ) {
- struct net_device *netdev;
+ /* Claim SNP devices */
+ efi_snp_claimed = claimed;
- for_each_netdev ( netdev )
- netdev_rx_freeze ( netdev );
+ /* Update SNP mode state for each interface */
+ list_for_each_entry ( snpdev, &efi_snp_devices, list )
+ efi_snp_set_state ( snpdev );
}
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2026-02-27 14:12:52 +0100