-From 886d93184b894a29b0bef1f2467230a20c7a33ce Mon Sep 17 00:00:00 2001
-From: Mark Salter <msalter@redhat.com>
-Date: Tue, 8 Apr 2014 10:58:11 -0400
-Subject: [PATCH] reopen SNP protocol for exclusive use by grub
-
-While working with pxeboot of grub on an ARM platform, I noticed
-very poor network performance while grub was loading a kernel
-and initramfs. The performance during the loading of grub itself
-seemed reasonable. Digging into the issue, I found that the UEFI
-firmware was periodically polling for network packets while grub
-was downloading files. This was causing timeouts and retries in
-the grub network stack.
-
-The solution I found was to reopen the SNP protocol for exclusive
-use. This forces UEFI to shutdown its use of SNP so that grub is
-not competing for incoming packets.
-
-Signed-off-by: Mark Salter <msalter@redhat.com>
----
- grub-core/net/drivers/efi/efinet.c | 16 ++++++++++++++++
- 1 file changed, 16 insertions(+)
-
-diff --git a/grub-core/net/drivers/efi/efinet.c b/grub-core/net/drivers/efi/efinet.c
-index 2b344d6..a6e4c79 100644
---- a/grub-core/net/drivers/efi/efinet.c
-+++ b/grub-core/net/drivers/efi/efinet.c
-@@ -223,6 +223,7 @@ grub_efi_net_config_real (grub_efi_handle_t hnd, char **device,
+diff -ur grub-2.02-beta3.orig/grub-core/net/drivers/efi/efinet.c grub-2.02-beta3/grub-core/net/drivers/efi/efinet.c
+--- grub-2.02-beta3.orig/grub-core/net/drivers/efi/efinet.c 2016-02-28 02:07:41.000000000 +0000
++++ grub-2.02-beta3/grub-core/net/drivers/efi/efinet.c 2016-03-21 07:56:01.589768000 +0000
+@@ -330,6 +330,7 @@
{
struct grub_net_card *card;
grub_efi_device_path_t *dp;
dp = grub_efi_get_device_path (hnd);
if (! dp)
-@@ -250,6 +251,21 @@ grub_efi_net_config_real (grub_efi_handle_t hnd, char **device,
+@@ -383,6 +384,21 @@
&pxe_mode->dhcp_ack,
sizeof (pxe_mode->dhcp_ack),
1, device, path);
return;
}
}
---
-1.8.5.3
-