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efi_loader: fix efi_net_get_status

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The returned interrupt status was wrong.

As out transmit buffer is empty we need to always set
EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT.

When we have received a packet we need to set
EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT.

Furthermore we should call efi_timer_check() to handle events.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt 2017-10-05 16:36:02 +02:00 • committed by Alexander Graf
parent e5c21603fc
commit 891b3d9051
2 changed files with 14 additions and 3 deletions
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6
include/efi_api.h
View file

@ -600,6 +600,12 @@ struct efi_simple_network_mode {
#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS 0x08
#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST 0x10
/* interrupt status bit mask */
#define EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT 0x01
#define EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT 0x02
#define EFI_SIMPLE_NETWORK_COMMAND_INTERRUPT 0x04
#define EFI_SIMPLE_NETWORK_SOFTWARE_INTERRUPT 0x08
/* revision of the simple network protocol */
#define EFI_SIMPLE_NETWORK_PROTOCOL_REVISION 0x00010000

11
lib/efi_loader/efi_net.c
View file

@ -133,9 +133,14 @@ static efi_status_t EFIAPI efi_net_get_status(struct efi_simple_network *this,
{
EFI_ENTRY("%p, %p, %p", this, int_status, txbuf);
/* We send packets synchronously, so nothing is outstanding */
if (int_status)
*int_status = 0;
efi_timer_check();
if (int_status) {
/* We send packets synchronously, so nothing is outstanding */
*int_status = EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT;
if (new_rx_packet)
*int_status |= EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT;
}
if (txbuf)
*txbuf = new_tx_packet;