sys: Remove $FreeBSD$: one-line .c comment pattern

Remove /^/[*/]\s*\$FreeBSD\$.*\n/

ixl(4): Add link state polling

In some cases driver may ask FW about link state before FW finishes
configuration of a (Q)SFP+ transceiver. If first attempt of using Get Link
Status AQC after loading driver or handling a reset fails, then re-try
periodically for 5 seconds.

Signed-off-by: Krzysztof Galazka <krzysztof.galazka@intel.com>
Signed-off-by: Eric Joyner <erj@FreeBSD.org>

Tested by: jeffrey.e.pieper@intel.com
Approved by: erj@
MFC after: 2 days
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D40899

ixl(4): Fix MAC/VLAN filters accounting

- Account for a filter required to enable reception of untagged frames
while registering and unregistering VLANs to avoid trying to add more
filters than HW supports

- While adding MAC/VLAN filters, pre-set matching method field in the
Admin Queue Command response buffer to expected error value to work
around an issue with some FW versions, which do not update that field if
operation fails, and be able correctly track which filters were
configured in HW.

- Remove unused IXL_MAX_FILTERS macro definition

- Update number of available MAC/VLAN filters as in newer FW versions it
was decreased by one.

- Simplify i40e_dma_mem structure

Signed-off-by: Krzysztof Galazka <krzysztof.galazka@intel.com>
Signed-off-by: Eric Joyner <erj@FreeBSD.org>

Reviewed by: erj@
Tested by: Gowtham Kumar Ks <gowtham.kumar.ks@intel.com>
MFC after: 3 days
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D37457

ixl: purge EOL release compatibility

Drop code that differentiated between FreeBSD 10 and 11.

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/603
Differential Revision: https://reviews.freebsd.org/D35560

Convert iflib(4) and iflib-based drivers to the DrvAPI

Summary:
Convert iflib(4) and the following drivers:
* axgbe
* em
* ice
* ixl
* vmxnet

Sponsored by: Juniper Networks, Inc.
Reviewed by: kbowling, #iflib
Differential Revision: https://reviews.freebsd.org/D37768

ixl(4): Report RX errors as sum of all RX error counters

HW keeps track of RX errors using several counters, each for
specific type of errors. Report RX errors to OS as sum
of all those counters: CRC errors, illegal bytes, checksum,
length, undersize, fragment, oversize and jabber errors.

There is no HW counter for frames with invalid L3/L4 checksums
so add a SW one.

Also add a "rx_errors" sysctl with a copy of netstat IERRORS
counter value to make it easier accessible from scripts.

Reviewed By: erj
Tested By: gowtham.kumar.ks@intel.com
Sponsored By: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D27639

ixl(4): Fix VLAN HW filtering

X700 family of controllers has limited number of available VLAN
HW filters. Driver did not handle properly a case when user
assigned more VLANs to the interface which had all filters
already in use. Fix that by disabling HW filtering when
it is impossible to create filters for all requested VLANs.
Keep track of registered VLANs using bitstring to be able
to re-enable HW filtering when number of requested VLANs
drops below the limit.

Also switch all allocations to use M_IXL malloc type
to ease detecting memory leaks in the driver.

Reviewed by: erj
Tested by: gowtham.kumar.ks@intel.com
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D28137

ixl(4): Add FW recovery mode support and other things

Update the iflib version of ixl driver based on the OOT version ixl-1.11.29.

Major changes:

- Extract iflib specific functions from ixl_pf_main.c to ixl_pf_iflib.c
to simplify code sharing between legacy and iflib version of driver

- Add support for most recent FW API version (1.10), which extends FW
LLDP Agent control by user to X722 devices

- Improve handling of device global reset

- Add support for the FW recovery mode

- Use virtchnl function to validate virtual channel messages instead of
using separate checks

- Fix MAC/VLAN filters accounting

Submitted by: Krzysztof Galazka <krzysztof.galazka@intel.com>
Reviewed by: erj@
Tested by: Jeffrey Pieper <jeffrey.e.pieper@intel.com>
MFC after: 1 week
Relnotes: yes
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D24564

ixl: prevent non-privileged access to NVM update interface

Add a privilege check to the ixl_handle_nvmupd_cmd function, ensuring
that only privileged users are allowed to access the NVM update
interface.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>

Submitted by: Jacob Keller <jacob.e.keller@intel.com>
Reported by: markj@
Reviewed by: markj@, erj@, jeffrey.e.pieper@intel.com
MFC after: 3 days
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D22870

ixl/iavf(4): Fix TSO offloads when TXCSUM is disabled

From Jake:
The iflib stack does not disable TSO automatically when TXCSUM is
disabled, instead assuming that the driver will correctly handle TSOs
even when CSUM_IP is not set.

This results in iflib calling ixl_isc_txd_encap with packets which have
CSUM_IP_TSO, but do not have CSUM_IP or CSUM_IP_TCP set. Because of
this, ixl_tx_setup_offload will not setup the IPv4 checksum offloading.

This results in bad TSO packets being sent if a user disables TXCSUM
without disabling TSO.

Fix this by updating the ixl_tx_setup_offload function to check both
CSUM_IP and CSUM_IP_TSO when deciding whether to enable IPv4 checksums.

Once this is corrected, another issue for TSO packets is revealed. The
driver sets IFLIB_NEED_ZERO_CSUM in order to enable a work around that
causes the ip->sum field to be zero'd. This is necessary for ixl
hardware to correctly perform TSOs.

However, if TXCSUM is disabled, then the work around is not enabled, as
CSUM_IP will not be set when the iflib stack checks to see if it should
clear the sum field.

Fix this by adding IFLIB_TSO_INIT_IP to the iflib flags for the iavf and
ixl interface files.

It is uncertain if the hardware needs IFLIB_NEED_ZERO_CSUM for any other
case besides TSO, so leave that flag assigned. It may be worth
investigating to see if this work around flag could be disabled in
a future change.

Once both of these changes are made, the ixl driver should correctly
offload TSO packets when TSO4 offload is enabled, regardless of whether
TXCSUM is enabled or disabled.

Submitted by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed by: erj@, shurd@
MFC after: 0 days
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D17900

iavf(4): Finish rename/rebrand internally

Rename functions and variables from ixlv to iavf to match the
user-facing name change. There shouldn't be any functional changes
with this change, but this may help with browsing the source code
and reducing diffs in the future.

Submitted by: kbowling@
Reviewed by: erj@, sbruno@
Approved by: re (gjb@)
Differential Revision: https://reviews.freebsd.org/D17544

ixl/iavf(4): Change ixlv to iavf and update it to use iflib(9)

Finishes the conversion of the 40Gb Intel Ethernet drivers to iflib(9) for
FreeBSD 12.0, and fixes numerous bugs in both ixl(4) and iavf(4).

This commit also re-adds the VF driver to GENERIC since it now compiles and
functions.

The VF driver name was changed from ixlv(4) to iavf(4) because the VF driver is
now intended to be used with future products, not just with Fortville/Fort Park
VFs.

A man page update that documents these drivers is forthcoming in a separate
commit.

Reviewed by: sbruno@, kbowling@
Tested by: jeffrey.e.pieper@intel.com
Approved by: re (gjb@)
Relnotes: yes
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D16429

Remove a duplicated interface capability bit missed in r336313.

ixl(4): Fix gcc build errors

By removing redundant function declarations.

Reported by: ci.freebsd.org via Mark Millard <marklmi@yahoo.com>
MFC after: 1 month

ixl(4): Update version number to 2.0.0-k

And update copyrights to current year.

MFC after: 1 month
Sponsored by: Intel Corporation

ixl(4): Update to use iflib

Update the driver to use iflib in order to bring performance,
maintainability, and (hopefully) stability benefits to the driver.

The driver currently isn't completely ported; features that are missing:

- VF driver (ixlv)
- SR-IOV host support
- RDMA support

The plan is to have these re-added to the driver before the next FreeBSD release.

Reviewed by: gallatin@
Contributions by: gallatin@, mmacy@, krzysztof.galazka@intel.com
Tested by: jeffrey.e.pieper@intel.com
MFC after: 1 month
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D15577

ixl(4): Update to 1.9.9-k

Refresh upstream driver before impending conversion to iflib.

Major changes:

- Support for descriptor writeback mode (required by ixlv(4) for AVF support)
- Ability to disable firmware LLDP agent by user (PR 221530)
- Fix for TX queue hang when using TSO (PR 221919)
- Separate descriptor ring sizes for TX and RX rings

PR: 221530, 221919
Submitted by: Krzysztof Galazka <krzysztof.galazka@intel.com>
Reviewed by: #IntelNetworking
MFC after: 1 day
Relnotes: Yes
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D14985

ixl: gcc build errors

Fix minor -Werror issues when building with gcc from -Wredundant-decls,
-Wunused, -Wbool-operations. Also ensure the M_IXL malloc type is only
defined once.

Reviewed by: efj
Approved by: markj (mentor)
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D11414

ixl(4): Update to 1.7.12-k

Refresh upstream driver before impending conversion to iflib.

Major new features:

- Support for Fortville-based 25G adapters
- Support for I2C reads/writes

(To prevent getting or sending corrupt data, you should set
dev.ixl.0.debug.disable_fw_link_management=1 when using I2C
[this will disable link!], then set it to 0 when done. The driver implements
the SIOCGI2C ioctl, so ifconfig -v works for reading I2C data,
but there are read_i2c and write_i2c sysctls under the .debug sysctl tree
[the latter being useful for upper page support in QSFP+]).

- Addition of an iWARP client interface (so the future iWARP driver for
X722 devices can communicate with the base driver).
- Compiling this option in is enabled by default, with "options IXL_IW" in
GENERIC.

Differential Revision: https://reviews.freebsd.org/D9227
Reviewed by: sbruno
MFC after: 2 weeks
Sponsored by: Intel Corporation

Consistently use `device_t`

Several files use the internal name of `struct device` instead of
`device_t` which is part of the public API. This patch changes all
`struct device *` to `device_t`.

The remaining occurrences of `struct device` are those referring to the
Linux or OpenBSD version of the structure, or the code is not built on
FreeBSD and it's unclear what to do.

Submitted by: Matthew Macy <mmacy@nextbsd.org> (previous version)
Approved by: emaste, jhibbits, sbruno
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D7447

Fixup ixl(4) options parsing to actually compile when using RSS/PCBGROUP
in GENERIC.

Fixup #ifdef RSS code blocks so that they build and add/delete variables
that were missesd during the creation of this code.

This code is untested and should have a big red warning on it.

Reported by: npn@
MFC after: 2 days

ixl(4): Update to ixl-1.6.6-k.

Submitted by: erj
Reviewed by: jeffrey.e.pieper@intel.com
MFC after: 3 days
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D7391

ixl: Update to 1.4.24-k.

Changes by author:

Eric Joyner ixl: Fix compile error when IXL_DEBUG is defined.
Eric Joyner ixl: Fix taskqueues created in init() not being freed in stop().
Eric Joyner ixl: Add additional debug sysctls, for Tx and Rx queue stats.
Eric Joyner ixl: Enable dynamic itr by default.
Eric Joyner ixl: Edit spacing, comments, function signatures (to conform to style(9)).
Eric Joyner ixl: Check for errors when tearing down msix interrupts.
Eric Joyner ixl: Remove unnecessary register reads/writes.
Eric Joyner ixl: Remove admin queue interrupt enable from general interrupt enable.
Eric Joyner ixl: Update switch config after teardown/reset flow in init().
Eric Joyner ixl: Add additional admin queue error code output to admin queue call errors.
Eric Joyner ixl: Don't destroy i40e spinlock if it's already uninitialized.
Shannon Nelson i40e-shared: clean event descriptor before use
Anjali Singhai Jain i40e-shared: When in promisc mode apply promisc mode to Tx Traffic as well
Kevin Scott i40e_shared: Increase timeout when checking GLGEN_RSTAT_DEVSTATE bit
Eric Joyner ixlv: Fix IXL_DEBUG compile issue.
Eric Joyner ixlv: Attempt to fix panic/other issues when rapidly unloading/loading driver.
Eric Joyner ixl/ixlv: Revert m_collapse() in ixl_xmit() to m_defrag().
Deepthi Kavalur i40e_shared: Trace logging HW capabilities
Eric Joyner ixlv: Correctly unlock/relock around init() call in vc_completion().
Eric Joyner ixl: Stop preventing changing flow control mode for CR4 media.
Eric Joyner ixl: Set IPv6 TCP offload flag when doing TSO.

Differential Revision: https://reviews.freebsd.org/D6211
Reviewed by: sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after: 2 weeks
Sponsored by: Intel Corporation

ixl: Update to 1.4.20-k.

Changes by author:

Eric Joyner ixl: Add more error messages/checks to ixl_vsi_assign_msix().
Eric Joyner ixl/ixlv: Clarify a comment about descriptors.
Eric Joyner ixl/ixlv: Improve i40e_debug() implementation.
Eric Joyner ixl/ixlv: Remove unused ASSERT() macro; move struct around.
Eric Joyner ixl: Set initial advertised speed value in init_locked().
Eric Joyner ixl: Fix flow control sysctl value being stored when new value is invalid.
Eric Joyner Edit comments and spacing.
Carolyn Wyborny i40e-shared: Add functions to blink led on Coppervale PHY
Eric Joyner ixl: Re-do interrupt setup.
Eric Joyner ixl: Remove VFLR task setup from legacy flow.
Eric Joyner ixl: Shutdown/setup HMC when handling an EMPR reset.

Differential Revision: https://reviews.freebsd.org/D6211
Reviewed by: sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after: 2 weeks
Sponsored by: Intel Corporation

ixl: Update to 1.4.17-k.

Changes:

Kiran Patil i40e-shared: APIs to Add/remove port mirroring rules
Shannon Nelson i40e-shared: add VEB stat control and remove L2 cloud filter
Eric Joyner ixl: Update NVM version information shown.
Eric Joyner ixl: Remove empty else block.
Eric Joyner ixl: Slightly re-work ixl_init_msix().
Eric Joyner ixl: Remove duplicate queue enablement.
Shannon Nelson i40e-shared: implement the API function for aq_set_switch_config
Eric Joyner ixl: Update nvm version string shown in sysctl.
Eric Joyner ixl/ixlv: Changes to PF/VF minor version checking/handling.
Eric Joyner ixlv: Reduce maximum wait time for responses to VF AQ messages.
Eric Joyner ixl/ixlv: Edit comments, comment out code, and edit spacing.
Eric Joyner ixl: Print log message when SR-IOV init is successful.
Eric Joyner ixl: Add Tx Flow Control filter from main PF VSI.
Eric Joyner ixlv: Add extra error message when ixlv_get_vf_config times out.
Eric Joyner ixl: Assign current MOCS optics the XLPPI media type.
Eric Joyner ixl: Remove conditional wait after link status event.
Eric Joyner ixl: Add line break and remove extraneous return statement.
Eric Joyner ixl: Allow 40G speeds in the advertise_speed sysctl.
Eric Joyner ixl: Add "CRC enable" field to link_status sysctl output.
Eric Joyner ixl: Move sbuf.h include out of IXL_DEBUG* defines.
Eric Joyner ixl: Move remaining debug sysctl funcs to IXL_DEBUG_SYSCTL define.
Eric Joyner ixl: Add cases for all remaining media types in shared code to media_status().

Differential Revision: https://reviews.freebsd.org/D6211
Reviewed by: sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after: 2 weeks
Sponsored by: Intel Corporation

ixl: Update to 1.4.12-k.

Changes by author:

Eric Joyner ixl: Remove substitution of EACCES for EPERM when perrno is set on an nvmupdate command return.
Eric Joyner ixl: Print message when hardware sends GRST interrupt.
Eric Joyner ixl: Fix kernel panic when driver fails to initialize admin queue.
Eric Joyner ixl: Print out messages when a non-handled other interrupt occurs.
Eric Joyner ixl: Fix spaces in a couple messages.
Eric Joyner ixl: Add lock around nvmupd command entry point and reconvert EPERM errors to EACCES.
Anjali Singhai Jain i40e-shared: Make some changes in the nvm read code
Shannon Nelson i40e-shared: AQ Add Run PHY Activity struct
Shannon Nelson i40e-shared: AQ Add Geneve cloud tunnel type
Shannon Nelson i40e-shared: AQ Add external power class to get link status response struct
Shannon Nelson i40e-shared: AQ Add shared resource flags for macvlan filters
Shannon Nelson i40e-shared: AQ Add set_switch_config
Shannon Nelson i40e-shared: AQ Add VXLAN-GPE tunnel type for cloud filter and tunnel commands
Shannon Nelson i40e-shared: AQ thermal sensor control struct
Shannon Nelson i40e-shared: Bump AQ minor version to 1.5 for FVL5 features
Shannon Nelson i40e-shared: add a little more to an NVM update debug message
Carolyn Wyborny i40e-shared: Fix for PHY NVM interaction problem
Eric Joyner i40e-shared: Add prototypes for private NVM write functions
Eric Joyner ixl/ixlv: Remove unused define from ixl.h.
Eric Joyner ixl: Add handling of EMP reset for nvm update purposes.
Eric Joyner ixl: Move addition of device sysctls to separate function.
Eric Joyner ixl: Fix up a couple error messages in ixl_attach().
Eric Joyner ixl: Update the hardware resource allocation debug sysctl.

Differential Revision: https://reviews.freebsd.org/D6211
Reviewed by: sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after: 2 weeks
Sponsored by: Intel Corporation

ixl: Update to 1.4.7-k.

Changes by author:

Helin Zhang i40e_shared: Fix compilation error - pointer-arith
Paul M Stillwell Jr i40e-shared: Replace sprintf with i40e_debug
Anjali Singhai Jain i40e-shared: Fix an accidental error with BIT_ULL replacement
Jesse Brandeburg i40e-shared: remove useless assignments
Anjali Singhai Jain i40e-shared: Add a workaround to drop all flow control frames
Anjali Singhai Jain i40e-shared: Add new response struct from FW for AQ command i40e_aqc_lldp_set_local_mib
Anjali Singhai Jain i40e-shared: Acquire NVM, before issuing an AQ read nvm command
Eric Joyner ixl/ixlv: Remove unused MAX_LOOP define.
Eric Joyner ixl: Remove extra aq_get_link_info() call in attach().
Eric Joyner ixl: Modify a couple error messages in attach() to be more informative.
Eric Joyner ixl: Add i40e_get_link_status() call to init_locked().
Eric Joyner ixl: Move callout_stop() to earlier in ixl_stop().
Eric Joyner ixl: Add extra comments around link ITR code.
Eric Joyner ixl: Attempt to enhance link event handling.
Eric Joyner ixl: Style, spacing, and comment changes.
Eric Joyner ixl: Add I40E_NVM_ACCESS definition.
Eric Joyner ixl: Add interface for nvmupdate tool ioctl to driver.
Eric Joyner ixl: Don't strip out nvm update support from the driver anymore.
Eric Joyner ixl: Interrupts are now allocated/setup and torn down/released on init()/stop().

Differential Revision: https://reviews.freebsd.org/D6211
Reviewed by: sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after: 2 weeks
Sponsored by: Intel Corporation

ixl: Update to 1.4.6-k.

Changes by author:

Greg Rose ixl: Add MAC+VLAN filter for LAA MAC assignment
Carolyn Wyborny i40e_shared: fix for PHY NVM interaction problem
Anjali Singhai Jain i40e-shared: Fix an accidental error with BIT_ULL replacement
Eric Joyner ixl: Fix potential crash when loading driver a startup and cannot setup all requested MSIX vectors.
Eric Joyner ixl: Add max of 8 queues limit to autoconfig.
Eric Joyner ixl: Re-add ian@'s sysctl fixes from upstream (r280043).

Differential Revision: https://reviews.freebsd.org/D6211
Reviewed by: sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after: 2 weeks
Sponsored by: Intel Corporation

ixl: Update to 1.4.5-k.

This first update will revert some upstream changes; forthcoming updates will reinstate them.

Changes, by author:

Anjali Singhai Jain i40e-shared: Add WB_ON_ITR offload support
Shannon Nelson i40e-shared: fix phy_types bitmap type
Kevin Scott i40e-shared: Store off PHY capabilities
Shannon Nelson i40e-shared: fix byteswap of phy_type
Jingjing Wu i40e-shared: Fix compile issue related to const string
Greg Bowers i40e-shared: Add AQ defines for non-willing Apps (DCB)
Greg Bowers i40e-shared: Support for non-willing Apps (DCB)
Shannon Nelson i40e-shared: use upper-32 bit macro for address
Shannon Nelson i40e-shared: grab the AQ spinlocks before clearing registers
Eric Joyner ixl: Properly strip out X722_SUPPORT (temporarily).
Eric Joyner ixl: Allow Fort Pond devices to advertise 100M in set_advertise sysctl.

Differential Revision: https://reviews.freebsd.org/D6211
Reviewed by: sbruno, kmacy, jeffrey.e.pieper@intel.com
MFC after: 2 weeks
Sponsored by: Intel Corporation

Create a separate kobj interface for leaf-driver PCI IOV methods.

Leaf drivers should not import the PCI bus interface to add IOV handling.
Instead, move the IOV client methods to a separate kobj interface.

Differential Revision: https://reviews.freebsd.org/D2584
Reviewed by: rstone

Various fixes to the stats in igb(4), ixgbe(4), and ixl(4).
- Use hardware counters for ifnet stats in igb(4) when possible. This
ensures these stats include packets that bypass the regular stack via
netmap.
- Don't derefence values off the end of the igb(4) VF stats structure.
Instead, add a dedicated if_get_counter method for igb(4) VF interfaces.
- Report missed packets on igb(4) as input queue drops rather than an
input error.
- Report bug_ring drop counts as output queue drops for igb(4) and ixgbe(4).
- Export the buf_ring drop stats for individual rings via sysctl on
ixgbe(4).
- Fix a typo that in ixl(4) that caused output queue drops to be reported
as input queue drops and input queue drops to be unreported.

Differential Revision: https://reviews.freebsd.org/D2402
Reviewed by: jfv, rstone (6)
Sponsored by: Norse Corp, Inc.

This delta introduces SRIOV support, thanks to Ryan Stone of Sandvine for
adding this major feature to the driver. Secondly, this updates the base
driver with new 20G device support, and with the new firmware levels some
changes to link handling and initialization were required.

MFC after: 1 week

Bring the XL710 drivers up to the SW3 release level.

MFC after: 1 week

Intel I40E driver updates:
if_ixl to version 1.3.0, if_ixlv to version 1.2.0
- Major change in both drivers is to add RSS support
- In ixl fix some interface speed related issues, dual
speed was not changing correctly, KR/X media was not
displaying correctly (this has a workaround until a
more robust media handling is in place)
- Add a warning when using Dell NPAR and the speed is
less than 10G
- Wrap a queue hung message in IXL_DEBUG, as it is non-fatal,
and without tuning can display excessively

MFC after: 1 week

Update the Intel i40e drivers, ixl version 1.2.8, ixlv version 1.1.18
-Improved VF stability, thanks to changes from Ryan Stone,
and Juniper.
- RSS fixes in the ixlv driver
- link detection in the ixlv driver
- New sysctl's added in ixl and ixlv
- reset timeout increased for ixlv
- stability fixes in detach
- correct media reporting
- Coverity warnings fixed
- Many small bug fixes
- VF Makefile modified - nvm shared code needed
- remove unused sleep channels in ixlv_sc struct

Submitted by: Eric Joyner (committed by jfv)
MFC after: 1 week

Convert driver to if_get_counter method.

Submitted by: rstone
Reviewed by: Eric Joyner <ricera10 gmail.com>

Remove the DEV_NETMAP code from the ixl drivers, it was a placeholder
and not yet ready to be defined, and its causing build errors.

MFC after: 3 days

Fix build breakage caused by ixl driver

Fix missing includes and invalid vars in ixl / ixlv driver added by r270346
which caused build failures for GENERIC kernel after it was made default
by r270755.

X-MFC-With: r270346 / r270755
Sponsored by: Multiplay

Update to the Intel Base driver for the Intel XL710 Ethernet Controller Family
- It was decided to change the driver name to if_ixl for FreeBSD
- This release adds the VF Driver to the tree, it can be built into
the kernel or as the if_ixlv module
- The VF driver is independent for the first time, this will be
desireable when full SRIOV capability is added to the OS.
- Thanks to my new coworker Eric Joyner for his superb work in
both the core and vf driver code.

Enjoy everyone!

Submitted by: jack.vogel@intel.com and eric.joyner@intel.com
MFC after: 3 days (hoping to make 10.1)