aboutsummaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorEmil Tantilov <emil.s.tantilov@intel.com>2010-03-25 12:11:48 +0000
committerDavid S. Miller <davem@davemloft.net>2010-03-26 21:01:41 -0700
commita08af745e4c711d22aeadc2adade36958fe03ce8 (patch)
treef9a2b6779f669ccaeffe169868f72b23265ce7b3 /drivers
parent6a2bad70d546cf30a46bc6d9ec0cb9a0891a38eb (diff)
downloadlinux-2.6.34-ux500-a08af745e4c711d22aeadc2adade36958fe03ce8.tar.gz
igbvf: do not modify tx_queue_len on link speed change
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> CC: 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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/igbvf/igbvf.h1
-rw-r--r--drivers/net/igbvf/netdev.c11
2 files changed, 1 insertions, 11 deletions
diff --git a/drivers/net/igbvf/igbvf.h b/drivers/net/igbvf/igbvf.h
index a1774b29d22..debeee2dc71 100644
--- a/drivers/net/igbvf/igbvf.h
+++ b/drivers/net/igbvf/igbvf.h
@@ -198,7 +198,6 @@ struct igbvf_adapter {
struct igbvf_ring *tx_ring /* One per active queue */
____cacheline_aligned_in_smp;
- unsigned long tx_queue_len;
unsigned int restart_queue;
u32 txd_cmd;
diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c
index a77afd8a14b..b41037ed808 100644
--- a/drivers/net/igbvf/netdev.c
+++ b/drivers/net/igbvf/netdev.c
@@ -1304,8 +1304,6 @@ static void igbvf_configure_tx(struct igbvf_adapter *adapter)
/* enable Report Status bit */
adapter->txd_cmd |= E1000_ADVTXD_DCMD_RS;
-
- adapter->tx_queue_len = adapter->netdev->tx_queue_len;
}
/**
@@ -1524,7 +1522,6 @@ void igbvf_down(struct igbvf_adapter *adapter)
del_timer_sync(&adapter->watchdog_timer);
- netdev->tx_queue_len = adapter->tx_queue_len;
netif_carrier_off(netdev);
/* record the stats before reset*/
@@ -1857,21 +1854,15 @@ static void igbvf_watchdog_task(struct work_struct *work)
&adapter->link_duplex);
igbvf_print_link_info(adapter);
- /*
- * tweak tx_queue_len according to speed/duplex
- * and adjust the timeout factor
- */
- netdev->tx_queue_len = adapter->tx_queue_len;
+ /* adjust timeout factor according to speed/duplex */
adapter->tx_timeout_factor = 1;
switch (adapter->link_speed) {
case SPEED_10:
txb2b = 0;
- netdev->tx_queue_len = 10;
adapter->tx_timeout_factor = 16;
break;
case SPEED_100:
txb2b = 0;
- netdev->tx_queue_len = 100;
/* maybe add some timeout factor ? */
break;
}