diff options
| author |   Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com> | 2015-05-06 05:30:33 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-05-09 16:27:03 -0400 |
| commit | 209477704187472d6055e83bbd0fd9b51b79fa15 (patch) | |
| tree | de857e513709304b8c5cce4c676b01102ebbc12a /drivers/net/ethernet/emulex/benet/be_ethtool.c | |
| parent | be2net: add support for spoofchk setting (diff) | |
| download | linux-dev-209477704187472d6055e83bbd0fd9b51b79fa15.tar.xz linux-dev-209477704187472d6055e83bbd0fd9b51b79fa15.zip | |
be2net: set interrupt moderation for Skyhawk-R using EQ-DB
Currently adaptive interrupt moderation is set by calculating
and configuring an EQ-delay every second. This is done via
a FW-cmd. But, on Skyhawk-R a "re-arm to interrupt" delay
can be set while ringing the EQ-DB. This patch uses this
facility to calculate and set the interrupt delay every 1ms.
This helps moderating interrupts better when the traffic
is bursty.
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com>
Signed-off-by: Sathya Perla <sathya.perla@avagotech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/emulex/benet/be_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/emulex/benet/be_ethtool.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c index b765c24625bf..61321de68a93 100644 --- a/drivers/net/ethernet/emulex/benet/be_ethtool.c +++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c @@ -368,6 +368,14 @@ static int be_set_coalesce(struct net_device *netdev, aic++; } + /* For Skyhawk, the EQD setting happens via EQ_DB when AIC is enabled. + * When AIC is disabled, persistently force set EQD value via the + * FW cmd, so that we don't have to calculate the delay multiplier + * encode value each time EQ_DB is rung + */ + if (!et->use_adaptive_rx_coalesce && skyhawk_chip(adapter)) + be_eqd_update(adapter, true); + return 0; } |