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firewire: optimize gap count with 1394b leaf nodes

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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>
This commit is contained in:
Stefan Richter
2007-06-18 19:44:12 +02:00
parent 25d83f583b
commit 24d40125f1
4 changed files with 14 additions and 17 deletions
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7
drivers/firewire/fw-card.c
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@@ -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