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| author | Stefan Richter | 2007-06-18 19:44:12 +0200 |
|---|---|---|
| committer | Stefan Richter | 2007-07-10 00:07:43 +0200 |
| commit | 24d40125f1f59a6de9d9e6e046676bd60532596c (patch) | |
| tree | 312fb396c7b5987313ce20ca033947faf54a273c /drivers/firewire/fw-card.c | |
| parent | firewire: remove unused macro (diff) | |
| download | kernel-qcow2-linux-24d40125f1f59a6de9d9e6e046676bd60532596c.tar.gz kernel-qcow2-linux-24d40125f1f59a6de9d9e6e046676bd60532596c.tar.xz kernel-qcow2-linux-24d40125f1f59a6de9d9e6e046676bd60532596c.zip | |
firewire: optimize gap count with 1394b leaf nodes
Table-based gap count optimization cannot be used if 1394b repeater PHYs
are present. But it does work with 1394b leaf nodes.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Diffstat (limited to 'drivers/firewire/fw-card.c')
| -rw-r--r-- | drivers/firewire/fw-card.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c index 9eb1edacd825..0aeab3218bb6 100644 --- a/drivers/firewire/fw-card.c +++ b/drivers/firewire/fw-card.c @@ -336,8 +336,11 @@ fw_card_bm_work(struct work_struct *work) } pick_me: - /* Now figure out what gap count to set. */ - if (card->topology_type == FW_TOPOLOGY_A && + /* + * Pick a gap count from 1394a table E-1. The table doesn't cover + * the typically much larger 1394b beta repeater delays though. + */ + if (!card->beta_repeaters_present && card->root_node->max_hops < ARRAY_SIZE(gap_count_table)) gap_count = gap_count_table[card->root_node->max_hops]; else |