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| author | Auke Kok <auke-jan.h.kok@intel.com> | 2006-05-23 10:29:50 -0700 |
|---|---|---|
| committer | Auke Kok <juke-jan.h.kok@intel.com> | 2006-05-23 10:29:50 -0700 |
| commit | 953784d66d8f621a8684d007e526ca26b12d54a1 (patch) | |
| tree | 2bc2564e76b842e37d2a7d87e001fba6c38ecb4f /drivers/net/ixgb | |
| parent | 4de17c8c7295d32d4e112e214aa90d8f7006972f (diff) | |
| download | blackbird-op-linux-953784d66d8f621a8684d007e526ca26b12d54a1.tar.gz blackbird-op-linux-953784d66d8f621a8684d007e526ca26b12d54a1.zip | |
ixgb: fix flow control
Make default flow control only have *sending* of flow control packets
enabled, and fix to disable / enable flow control correctly. Set flow
control defaults to disable receiving flow control from the link
partner, to fix the transmit fifo overlow errata
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Diffstat (limited to 'drivers/net/ixgb')
| -rw-r--r-- | drivers/net/ixgb/ixgb_param.c | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/drivers/net/ixgb/ixgb_param.c b/drivers/net/ixgb/ixgb_param.c index 8a83dfdf746d..388462cca39d 100644 --- a/drivers/net/ixgb/ixgb_param.c +++ b/drivers/net/ixgb/ixgb_param.c @@ -76,7 +76,7 @@ IXGB_PARAM(RxDescriptors, "Number of receive descriptors"); * - 2 - Tx only, generate PAUSE frames but ignore them on receive * - 3 - Full Flow Control Support * - * Default Value: Read flow control settings from the EEPROM + * Default Value: 2 - Tx only (silicon bug avoidance) */ IXGB_PARAM(FlowControl, "Flow Control setting"); @@ -137,7 +137,7 @@ IXGB_PARAM(RxFCLowThresh, "Receive Flow Control Low Threshold"); * * Valid Range: 1 - 65535 * - * Default Value: 256 (0x100) + * Default Value: 65535 (0xffff) (we'll send an xon if we recover) */ IXGB_PARAM(FCReqTimeout, "Flow Control Request Timeout"); @@ -165,8 +165,6 @@ IXGB_PARAM(IntDelayEnable, "Transmit Interrupt Delay Enable"); #define XSUMRX_DEFAULT OPTION_ENABLED -#define FLOW_CONTROL_FULL ixgb_fc_full -#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL #define DEFAULT_FCRTL 0x28000 #define DEFAULT_FCRTH 0x30000 #define MIN_FCRTL 0 @@ -174,9 +172,9 @@ IXGB_PARAM(IntDelayEnable, "Transmit Interrupt Delay Enable"); #define MIN_FCRTH 8 #define MAX_FCRTH 0x3FFF0 -#define DEFAULT_FCPAUSE 0x100 /* this may be too long */ #define MIN_FCPAUSE 1 #define MAX_FCPAUSE 0xffff +#define DEFAULT_FCPAUSE 0xFFFF /* this may be too long */ struct ixgb_option { enum { enable_option, range_option, list_option } type; @@ -336,7 +334,7 @@ ixgb_check_options(struct ixgb_adapter *adapter) .type = list_option, .name = "Flow Control", .err = "reading default settings from EEPROM", - .def = ixgb_fc_full, + .def = ixgb_fc_tx_pause, .arg = { .l = { .nr = LIST_LEN(fc_list), .p = fc_list }} }; @@ -365,8 +363,8 @@ ixgb_check_options(struct ixgb_adapter *adapter) } else { adapter->hw.fc.high_water = opt.def; } - if(!(adapter->hw.fc.type & ixgb_fc_rx_pause) ) - printk (KERN_INFO + if (!(adapter->hw.fc.type & ixgb_fc_tx_pause) ) + printk (KERN_INFO "Ignoring RxFCHighThresh when no RxFC\n"); } { /* Receive Flow Control Low Threshold */ @@ -385,8 +383,8 @@ ixgb_check_options(struct ixgb_adapter *adapter) } else { adapter->hw.fc.low_water = opt.def; } - if(!(adapter->hw.fc.type & ixgb_fc_rx_pause) ) - printk (KERN_INFO + if (!(adapter->hw.fc.type & ixgb_fc_tx_pause) ) + printk (KERN_INFO "Ignoring RxFCLowThresh when no RxFC\n"); } { /* Flow Control Pause Time Request*/ @@ -406,12 +404,12 @@ ixgb_check_options(struct ixgb_adapter *adapter) } else { adapter->hw.fc.pause_time = opt.def; } - if(!(adapter->hw.fc.type & ixgb_fc_rx_pause) ) - printk (KERN_INFO + if (!(adapter->hw.fc.type & ixgb_fc_tx_pause) ) + printk (KERN_INFO "Ignoring FCReqTimeout when no RxFC\n"); } /* high low and spacing check for rx flow control thresholds */ - if (adapter->hw.fc.type & ixgb_fc_rx_pause) { + if (adapter->hw.fc.type & ixgb_fc_tx_pause) { /* high must be greater than low */ if (adapter->hw.fc.high_water < (adapter->hw.fc.low_water + 8)) { /* set defaults */ |
