Commit Graph

93 Commits

Author SHA1 Message Date
Harvey Harrison
b39d66a81f drivers/net: replace __FUNCTION__ with __func__
__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:59:00 -04:00
Alexander Duyck
6988867473 ixgbe: whitespace/formatting cleanup
This patch cleans up some whitespace items, reorders a couple of functions, and removes some outdated comments.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:55:06 -04:00
Alexander Duyck
b3c8b4ba61 ixgbe: correctly add and remove napi queues
This patch corrects support for NAPI so that queues are correctly added and
removed during suspend/resume in the event that the number of MSI-X vectors
changes.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:55:05 -04:00
Peter P Waskiewicz
b46172402f ixgbe: Whitespace, copyright update and version number change patch
This patch cleans up a bit of whitespace issues with the driver, updates
the copyright information, and bumps the version number up.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:55:05 -04:00
Jeff Kirsher
51ac6445b1 ixgbe: bump version
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:55:04 -04:00
Jesse Brandeburg
9f8cdf4f06 ixgbe: xmit frame refactor
ixgbe_xmit_frame can be refactored to use fewer locals and better
utilize common kernel macros.

also fixed minor buglet with internal to driver vlan flag variable being
passed incorrectly.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:55:03 -04:00
Jesse Brandeburg
74ce8dd29b ixgbe: lower stack space usage
some functions were un-necessarily using local variables.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:55:02 -04:00
Jesse Brandeburg
2adc0511a3 ixgbe: cleanup defines
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:55:02 -04:00
Jesse Brandeburg
b9804972f5 ixgbe: move set_num_queues and call it after msix failure
This is partial preparation for a future patch which will extend
ixgbe_set_num_queues

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:55:01 -04:00
Jesse Brandeburg
7f8218752a ixgbe: refresh the ixgbe_down function
clean up the hardware shutdown sequence to prevent hardware
from continuing to send when resetting or unloading.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:55:00 -04:00
Jesse Brandeburg
c44ade9ef8 ixgbe: update to latest common code module
This is a massive update that includes infrastructure for further patches
where we will add support for more phy types and eeprom types.

This code is shared as much as possible with other drivers, so the code may
seem a little obtuse at times but wherever possible we keep to the linux
style and methods.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:59 -04:00
Jesse Brandeburg
f08482766b ixgbe: add clean rx many routine
in some configurations there can be more than one rx queue per vector
in msi-x mode.  Add functionality to be able to clean this without
changing the performance path single-rx-queue cleanup.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:59 -04:00
Jesse Brandeburg
f6af803f0b ixgbe: lro stats were not counted on first ethtool -Scall
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:58 -04:00
Jesse Brandeburg
c431f97ef9 ixgbe: fix ring reallocation in ethtool
changing ring sizes in ethtool needs to be robust.  If an allocation fails the
driver must continue operation, with the previous settings.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:57 -04:00
Jesse Brandeburg
b95f5fcb8b ixgbe: add device support for XF LR adapters
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:56 -04:00
Jesse Brandeburg
762f4c5710 ixgbe: recycle pages in packet split mode
most of the time we only need 1500 bytes for a packet which means
we don't need a whole 4k page for each packet.  Share the allocation
by using a reference count to the page and giving half to two
receive descriptors.  This can enable us to use packet split mode
all the time due to the performance increase of allocating half
the pages.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:56 -04:00
Jesse Brandeburg
ff819cfb5d ixgbe: fix bug with lots of tx queues
when using more than 8 tx queues you can overrun the 8 bit v_idx
field, so change it to 16 bits to represent the maximum number
of queues (one for each bit)

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:55 -04:00
Jesse Brandeburg
30efa5a363 ixgbe: fix initial interrupt throttle settings
ixgbe was incorrectly setting the throttle rate setting for all tx
queues and the driver has been refreshed to better handle a dynamic
interrupt mode as well as multiple queues.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:54 -04:00
Jesse Brandeburg
3d3d6d3cc2 ixgbe: fix ethtool disable csum for ipv6
ethtool was not disabling the correct netif flags when setting
checksum disable.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:54 -04:00
Jeff Kirsher
05857980cf ixgbe: fix pci_resource allocation as in other drivers
Form: Jesse Brandeburg <jesse.brandeburg@intel.com>

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:53 -04:00
Jesse Brandeburg
98c00a1c5d ixgbe: fix ethtool register dump
1) reading some of the registers in our hardware causes them to clear,
so don't read ICR in the ethtool register dump function.
2) several register iterators were not iterating

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:52 -04:00
Jesse Brandeburg
42c783c5b1 ixgbe: limit small mtu to minimum for ipv4 support
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:51 -04:00
Jesse Brandeburg
f47cf66e9c ixgbe: fix bug with shared interrupts
fix ixgbe bug reported with shared legacy interrupts

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:51 -04:00
Jesse Brandeburg
41fb924866 ixgbe: link change interrupt was not causing link event
Upon review a buglet was found where link change was not causing
an immediate link change event as it should.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:50 -04:00
Jesse Brandeburg
cf8280ee7b ixgbe: Update watchdog thread to accomodate longerlink_up events
This patch updates the link_up code and watchdog thread so that link_up
doesn't cause stack overflows due to long waits in interrupt context.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:49 -04:00
Jesse Brandeburg
ce94bf469e ixgbe: fix multicast address update
after the most recent patches, the driver was not using the
correct iterator for updating the receive address registers (RAR)

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:48 -04:00
Jesse Brandeburg
a1f96ee7cc ixgbe: fix dca defines to not have spaces
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:47 -04:00
Jesse Brandeburg
af72166f31 ixgbe: fix bug where using wake queue instead of start
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-24 18:54:47 -04:00
David S. Miller
17dce5dfe3 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	net/mac80211/mlme.c
2008-09-08 16:59:05 -07:00
Alexander Duyck
3be1adfb91 ixgbe: change config srrctl to only program one register per VMDq/RSS id
This change makes it so only one srrctl register is programmed per VMDq id, and if VMDq is not enabled it is one register per RSS queue.  Currently this function is working correctly for the multiqueue RSS and single queue cases, but if any advances features such as VMDq or DCB would have been enabled this function would have caused issues as it was not correct.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:08:22 -04:00
PJ Waskiewicz
4eeae6fd3f ixgbe: use different context for tso and offload
Change TSO offloads to use a different context than VLAN insertion
and Tx checksumming.  Hardware has separate registers internally for
storing these so use them.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:03:34 -04:00
Jesse Brandeburg
cc41ac7c00 ixgbe: fix dca hints going to wrong processor
hardware was configured incorrectly which led all hints to be
sent to queue[0]'s DCA configuration.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:03:34 -04:00
Jesse Brandeburg
e9990a9cd7 ixgbe: fix bug where lro settings are per ring
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:03:34 -04:00
Jesse Brandeburg
96b0e0f63b ixgbe: update dca to new interface, fix CONFIG_DCA_MODULE
DCA related fixes
=================
- ixgbe was not compiling and using DCA correctly if dca was a module
- DCA interface changed with new kernel
- ixgbe was not correctly configured to indicate DCA hints to the
  correct CPU.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:03:34 -04:00
Jesse Brandeburg
22f32b7a5a ixgbe: should not use HW_CSUM, should use IP* flags
as mentioned by Herbert, our hardware supports IP offloads, not full
checksum offloads for any protocol in existence (even though the
hardware just provides generic csum support over any range of bytes)

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:03:33 -04:00
Jesse Brandeburg
7c6e0a436d ixgbe: Lock RSS seed, move rx_buf_len to the rx_ring
This locks the seed down so loading/unloading the driver will present
predictable hashing from RSS.  Also move the rx_buf_len out of the adapter
struct, and into the Rx ring struct.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:03:33 -04:00
Jesse Brandeburg
e01c31a5f7 ixgbe: Implement Tx Head Writeback
Enable Tx Head Writeback in the hardware.  This helps performance by
removing adapter writebacks to descriptors on transmit completion.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:03:33 -04:00
Jesse Brandeburg
2b9ade935c ixgbe: disable flow control by default
Since the adapter cannot tell what the remote end's flow control capability
is through auto-neg, we must turn off flow control by default.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:03:33 -04:00
Jesse Brandeburg
3a581073e0 ixgbe: Cleanup references to Tx and Rx rings to becommon across the driver
Cleanup all the different references to the Tx ring and Rx ring structures
and make them common across the driver.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:03:33 -04:00
Jesse Brandeburg
036c9b0970 ixgbe: do not update stats twice each receive
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:03:33 -04:00
Christopher Leech
2c5645cf65 ixgbe: Implement HAVE_SET_RX_MODE
Implement HAVE_SET_RX_MODE in the driver for MC and UC lists.

Signed-off-by: Christopher Leech <christopher.leech@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:03:32 -04:00
Jesse Brandeburg
9da09bb1b8 ixgbe: add little endian annotations for sparse
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:03:32 -04:00
Jesse Brandeburg
712744bebe ixgbe: fix rx csum return status misinterpretation
the driver was misinterpreting rx_csum return value in the descriptor
so occassionally we would indicate an rx_csum error in our stats
when there was none.  This would have no effect on traffic because
we would just hand the packet to the stack anyway without the offload
flag set, but would increase CPU for those packets that needed a recompute.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 10:03:32 -04:00
Andy Gospodarek
15e79f24b6 ixgbe: initialize interrupt throttle rate
This commit dropped the setting of the default interrupt throttle rate.

commit 021230d40a
Author: Ayyappan Veeraiyan <ayyappan.veeraiyan@intel.com>
Date:   Mon Mar 3 15:03:45 2008 -0800

    ixgbe: Introduce MSI-X queue vector code

The following patch adds it back.  Without this the default value of 0
causes the performance of this card to be awful.  Restoring these to the
default values yields much better performance.

This regression has been around since 2.6.25.

Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: stable@kernel.org [2.6.25 and later]
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03 09:26:18 -04:00
Alexander Duyck
3d01625a4f ixgbe: fix vlan filtering
VLAN filtering is broken, due to reading the incorrect register for
the VLAN filtering settings.  Fixed by reading/writing the correct
register.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-08-27 05:14:32 -04:00
Jesse Brandeburg
8d792cd990 ixgbe: add cx4 device ID
This is a simple device ID add for adapters that support
CX4 (copper infiniband style cable) connectors for 10GbE.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-08-14 04:42:41 -04:00
Jesse Brandeburg
bb5d10ac8c ixgbe: remove device ID for unsupported device
The ixgbe driver was untested with device ID 8086:10c8 but still advertises
support.  Currently if this device is present in the system when the driver
is loaded, the system will panic.
Remove this device ID until full support can be tested with available
hardware.  This patch is necessary for 2.6.24, 2.6.25 and 2.6.26

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-22 19:31:00 -04:00
Jeff Kirsher
d55b53fff0 igb/ixgbe/e1000e: resolve tx multiqueue bug
With the recent changes to tx mutiqueue, igb/ixgbe/e1000e was not calling
netif_tx_start_all_queues() before calling netif_tx_wake_all_queues().
This causes an issue during loading of the driver.

In addition, updated e1000e to use the updated tx mutliqueue api.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-18 04:33:03 -07:00
David S. Miller
fd2ea0a79f net: Use queue aware tests throughout.
This effectively "flips the switch" by making the core networking
and multiqueue-aware drivers use the new TX multiqueue structures.

Non-multiqueue drivers need no changes.  The interfaces they use such
as netif_stop_queue() degenerate into an operation on TX queue zero.
So everything "just works" for them.

Code that really wants to do "X" to all TX queues now invokes a
routine that does so, such as netif_tx_wake_all_queues(),
netif_tx_stop_all_queues(), etc.

pktgen and netpoll required a little bit more surgery than the others.

In particular the pktgen changes, whilst functional, could be largely
improved.  The initial check in pktgen_xmit() will sometimes check the
wrong queue, which is mostly harmless.  The thing to do is probably to
invoke fill_packet() earlier.

The bulk of the netpoll changes is to make the code operate solely on
the TX queue indicated by by the SKB queue mapping.

Setting of the SKB queue mapping is entirely confined inside of
net/core/dev.c:dev_pick_tx().  If we end up needing any kind of
special semantics (drops, for example) it will be implemented here.

Finally, we now have a "real_num_tx_queues" which is where the driver
indicates how many TX queues are actually active.

With IGB changes from Jeff Kirsher.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:07 -07:00
David S. Miller
09e83b5d7d netdev: Kill NETIF_F_MULTI_QUEUE.
There is no need for a feature bit for something that
can be tested by simply checking the TX queue count.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:03 -07:00