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firewire: use split transaction timeout only for split transactions

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Instead of starting the split transaction timeout timer when any request
is submitted, start it only when the destination's ACK_PENDING has been
received.  This prevents us from using a timeout that is too short, and,
if the controller's AT queue is emptying very slowly, from cancelling
a packet that has not yet been sent.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Clemens Ladisch 2010-12-13 14:56:02 +01:00 • committed by Stefan Richter
parent 693a50b511
commit 410cf2bd3d
2 changed files with 33 additions and 14 deletions
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2
include/linux/firewire.h
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@ -302,9 +302,9 @@ struct fw_packet {
struct fw_transaction {
int node_id; /* The generation is implied; it is always the current. */
int tlabel;
int timestamp;
struct list_head link;
struct fw_card *card;
bool is_split_transaction;
struct timer_list split_timeout_timer;
struct fw_packet packet;