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igb: do not modify tx_queue_len on link speed change

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Previously the driver tweaked txqueuelen to avoid false Tx hang reports seen at half duplex.
This had the effect of overriding user set values on link change/reset. Testing shows that
adjusting only the timeout factor is sufficient to prevent Tx hang reports at half duplex.

Based on e1000e patch by Franco Fichtner <franco@lastsummer.de>

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Emil Tantilov
2010-03-23 18:34:57 +00:00
committed by David S. Miller
parent fa3d9a6d55
commit d07f3e375f
2 changed files with 1 additions and 10 deletions
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drivers/net/igb/igb.h
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@@ -267,7 +267,6 @@ struct igb_adapter {
/* TX */
struct igb_ring *tx_ring[16];
unsigned long tx_queue_len;
u32 tx_timeout_count;
/* RX */