diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2009-12-23 13:49:13 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-12-23 19:09:08 -0800 |
| commit | 286d47ba90315a871f77351f7f61b7e4a96476a9 (patch) | |
| tree | 0d5c3d03c51f2734248ec4dfb33f3736ce140207 /drivers/net/sfc | |
| parent | 50d6ec552bdd4d9227fe9ed2bac819eced3170ac (diff) | |
| download | blackbird-op-linux-286d47ba90315a871f77351f7f61b7e4a96476a9.tar.gz blackbird-op-linux-286d47ba90315a871f77351f7f61b7e4a96476a9.zip | |
sfc: Disable TX descriptor prefetch watchdog
This hardware watchdog can misfire, so it does more harm than good.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sfc')
| -rw-r--r-- | drivers/net/sfc/nic.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/sfc/nic.c b/drivers/net/sfc/nic.c index a577be227862..db44224ed2ca 100644 --- a/drivers/net/sfc/nic.c +++ b/drivers/net/sfc/nic.c @@ -1576,6 +1576,8 @@ void efx_nic_init_common(struct efx_nic *efx) EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_SOFT_EVT_EN, 1); /* Prefetch threshold 2 => fetch when descriptor cache half empty */ EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_PREF_THRESHOLD, 2); + /* Disable hardware watchdog which can misfire */ + EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_PREF_WD_TMR, 0x3fffff); /* Squash TX of packets of 16 bytes or less */ if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0) EFX_SET_OWORD_FIELD(temp, FRF_BZ_TX_FLUSH_MIN_LEN_EN, 1); |
