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From 6f65e36cc4f92fe40672181eccf12eac4afb6738 Mon Sep 17 00:00:00 2001
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From: Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>
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Date: Tue, 21 Jan 2014 11:03:51 -0200
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Subject: [PATCH] increase network try interval gradually
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* grub-core/net/arp.c (grub_net_arp_send_request): Increase network try
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interval gradually.
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* grub-core/net/icmp6.c (grub_net_icmp6_send_request): Likewise.
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* grub-core/net/net.c (grub_net_fs_read_real): Likewise.
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* grub-core/net/tftp.c (tftp_open): Likewise.
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* include/grub/net.h (GRUB_NET_INTERVAL_ADDITION): New define.
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---
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ChangeLog | 9 +++++++++
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grub-core/net/arp.c | 3 ++-
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grub-core/net/icmp6.c | 3 ++-
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grub-core/net/net.c | 5 +++--
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grub-core/net/tftp.c | 3 ++-
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include/grub/net.h | 1 +
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6 files changed, 19 insertions(+), 5 deletions(-)
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diff --git a/grub-core/net/arp.c b/grub-core/net/arp.c
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index e92c7e7..d62d0cc 100644
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--- a/grub-core/net/arp.c
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+++ b/grub-core/net/arp.c
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@@ -110,7 +110,8 @@ grub_net_arp_send_request (struct grub_net_network_level_interface *inf,
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return GRUB_ERR_NONE;
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pending_req = proto_addr->ipv4;
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have_pending = 0;
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- grub_net_poll_cards (GRUB_NET_INTERVAL, &have_pending);
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+ grub_net_poll_cards (GRUB_NET_INTERVAL + (i * GRUB_NET_INTERVAL_ADDITION),
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+ &have_pending);
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if (grub_net_link_layer_resolve_check (inf, proto_addr))
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return GRUB_ERR_NONE;
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nb.data = nbd;
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diff --git a/grub-core/net/icmp6.c b/grub-core/net/icmp6.c
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index 2741e6f..bbc9020 100644
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--- a/grub-core/net/icmp6.c
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+++ b/grub-core/net/icmp6.c
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@@ -518,7 +518,8 @@ grub_net_icmp6_send_request (struct grub_net_network_level_interface *inf,
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{
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if (grub_net_link_layer_resolve_check (inf, proto_addr))
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break;
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- grub_net_poll_cards (GRUB_NET_INTERVAL, 0);
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+ grub_net_poll_cards (GRUB_NET_INTERVAL + (i * GRUB_NET_INTERVAL_ADDITION),
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+ 0);
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if (grub_net_link_layer_resolve_check (inf, proto_addr))
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break;
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nb->data = nbd;
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diff --git a/grub-core/net/net.c b/grub-core/net/net.c
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index 56355f3..1521d8d 100644
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--- a/grub-core/net/net.c
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+++ b/grub-core/net/net.c
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@@ -1558,8 +1558,9 @@ grub_net_fs_read_real (grub_file_t file, char *buf, grub_size_t len)
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if (!net->eof)
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{
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try++;
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- grub_net_poll_cards (GRUB_NET_INTERVAL, &net->stall);
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- }
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+ grub_net_poll_cards (GRUB_NET_INTERVAL +
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+ (try * GRUB_NET_INTERVAL_ADDITION), &net->stall);
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+ }
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else
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return total;
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}
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diff --git a/grub-core/net/tftp.c b/grub-core/net/tftp.c
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index 9c489f1..5173614 100644
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--- a/grub-core/net/tftp.c
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+++ b/grub-core/net/tftp.c
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@@ -398,7 +398,8 @@ tftp_open (struct grub_file *file, const char *filename)
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destroy_pq (data);
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return err;
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}
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- grub_net_poll_cards (GRUB_NET_INTERVAL, &data->have_oack);
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+ grub_net_poll_cards (GRUB_NET_INTERVAL + (i * GRUB_NET_INTERVAL_ADDITION),
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+ &data->have_oack);
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if (data->have_oack)
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break;
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}
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diff --git a/include/grub/net.h b/include/grub/net.h
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index de6259e..0e0a605 100644
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--- a/include/grub/net.h
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+++ b/include/grub/net.h
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@@ -534,6 +534,7 @@ extern char *grub_net_default_server;
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#define GRUB_NET_TRIES 40
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#define GRUB_NET_INTERVAL 400
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+#define GRUB_NET_INTERVAL_ADDITION 20
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#define VLANTAG_IDENTIFIER 0x8100
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--
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1.8.5.3
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