Changeset 3bb5735 in mainline for uspace/srv/net/il/ip/ip.c

Timestamp:

2010-11-23T20:50:09Z (13 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

442ebbe

Parents:

da9f13f3

git-author:

Radim Vansa <radim.vansa@…> (2010-11-23 20:50:09)

git-committer:

Jakub Jermar <jakub@…> (2010-11-23 20:50:09)

Message:

Cherry pick fixes from changeset lp:~helenos-nicf/helenos/nicf,705.

Original description:
Solved first ping timeout

Cleaned up a little and replaced EBUSY with EAGAIN.

File:

• uspace/srv/net/il/ip/ip.c (modified) (2 diffs)

uspace/srv/net/il/ip/ip.c

@@ -115 +115 @@
 /** The IP localhost address. */
 #define IPV4_LOCALHOST_ADDRESS  htonl((127 << 24) + 1)
+
+/** How many times can arp_translate_req respond EAGAIN before IP gives up */
+#define ARP_EAGAIN_MAX_COUNT 10
 
 /** IP global data. */
@@ -1008 +1011 @@
                 destination.length = CONVERT_SIZE(dest.s_addr, char, 1);
 
-                rc = arp_translate_req(netif->arp->phone, netif->device_id,
-                    SERVICE_IP, &destination, &translation, &data);
+                /** Try calling translate several times, then give up */
+                int count = 0;
+                do {
+                        rc = arp_translate_req(netif->arp->phone,
+                            netif->device_id, SERVICE_IP, &destination,
+                            &translation, &data);
+                        count++;
+                } while (rc == EAGAIN && count <= ARP_EAGAIN_MAX_COUNT);
                 if (rc != EOK) {
                         pq_release_remote(ip_globals.net_phone,