block/iscsi: increase retry count

The idea is that a command is retried in a BUSY condition
up a time of approx. 60 seconds before it is failed. This should
be far higher than any command timeout in the guest.

Signed-off-by: Peter Lieven <pl@kamp.de>
Message-id: 1429193313-4263-7-git-send-email-pl@kamp.de
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

diff --git a/block/iscsi.c b/block/iscsi.c
index 6033330..5999f74 100644 (file)
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -103,7 +103,7 @@ typedef struct IscsiAIOCB {
 #define NOP_INTERVAL 5000
 #define MAX_NOP_FAILURES 3
 #define ISCSI_CMD_RETRIES ARRAY_SIZE(iscsi_retry_times)
-static const unsigned iscsi_retry_times[] = {8, 32, 128, 512, 2048};
+static const unsigned iscsi_retry_times[] = {8, 32, 128, 512, 2048, 8192, 32768};
 
 /* this threshold is a trade-off knob to choose between
  * the potential additional overhead of an extra GET_LBA_STATUS request