82598 can produce a formidable interrupt rate, and is largely
unusable without some form of moderation. The default behaviour
before this patch is to limit irq's to a reasonable number.
However, just like our other drivers we can reduce latency
for small packet-type traffic considerably by allowing the
irq rate to go up dynamically.
This patch introduces a simple irq moderation algorithm based
on traffic analysis. The driver will use more CPU to service
small packets quicker but will perform the same on bulk traffic
as the old code.
Signed-off-by: Ayyappan Veeraiyan <ayyappan.veeraiyan@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Now that the irq vector code is in place, we can add the conditional
multiqueue TX code in the driver. This requires the optional
CONFIG_NETDEVICES_MULTIQUEUE=y and will not be enabled without
it.
Signed-off-by: Ayyappan Veeraiyan <ayyappan.veeraiyan@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Acked-by: Waskiewicz Jr, Peter P <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The i82598 can support various media types but this ethtool
code only was coded for fiber just yet.
Signed-off-by: Ayyappan Veeraiyan <ayyappan.veeraiyan@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
After testing we confirmed that the irq_sem can safely be
removed from ixgbe.
Add strict state checking code to various ethtool parts to
properly protect against races between various driver reset
paths.
Signed-off-by: Ayyappan Veeraiyan <ayyappan.veeraiyan@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
These have been superceded by the new ->get_sset_count() hook.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds support for the Intel 82598 PCI-Express 10GbE
chipset. Devices will be available on the market soon.
This version of the driver is largely the same as the last release:
* Driver uses a single RX and single TX queue, each using 1 MSI-X
irq vector.
* Driver runs in NAPI mode only
* Driver is largely multiqueue-ready (TM)
Changes since 20070803:
* removed wrappers for hardware functions
* incorporated e1000e-style HW api reorganization code
* sparse/checkpatch cleanups, namespace cleanups
* driver prints out extra debugging information at load time
identifying adapter board number, mac, phy types
* removed ixgbe_api.c, ixgbe_api.h, ixgbe_osdep.h
* driver update to 1.1.18
* removed ixgbe.txt which contained no useful info anymore
[ Integrated napi_struct changes from Auke as well... -DaveM ]
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Ayyappan Veeraiyan <ayyappan.veeraiyan@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
