ixgbe: Cleanup. No fucntional change.

Remove unused code, fix whitespace and modify comment to reduce against
FreeBSD(mainly from ix-3.3.35).

s/filer/filter/ in comment. No functional change.

Update copyright to 2020.

FreeBSD: 8455e365f77f5b66ac9521dbcd690f79345ce147

Whitespace fix. Sync with FreeBSD ix-3.3.14.

Add missing __KERNEL_RCSID().

branches: 1.24.12;
Fix some typos in comments.

From vezhlys on freenode IRC.

branches: 1.23.2;
Sync with FreeBSD ix-3.3.8 part 1. No functional change in this part:
- Move ixgbe_toggle_txdctl() to ixgbe_common.c and modify a bit.
No functional change because this function is currently used for SR-IOV
and it's not used in NetBSD.
- Some modification to match the latest netmap API.
- Modify ixgbe_hic_unlocked(). No functional change because neither
IXGBE_HOST_INTERFACE_APPLY_UPDATE_CMD(0x38) nor
IXGBE_HOST_INTERFACE_SHADOW_RAM_READ_CMD(0x31) are used.
- Add ixgbe_clear_mbx(). No functional change because this function is not
used yet.
- Add some not-yet-used register definitions.
- Whitespace fixes.

Apply FreeBSD ix-3.3.6.tar.gz's change to NetBSD. Tested on C3000 and X550-T1,
but not tested on Xeon D:
- Add firmware recovery mode for X550, X550A(Xeon D) and X550EM (C3000):
- FreeBSD always set IXGBE_FEATURE_RECOVERY_MODE without checking the
NVM image version. We compare it against 2.0 to not to make new callout and
not to call extra atomic operations.
- In some FreeBSD's sysctl functions, atomic_load_acq_int() is called
before a null pointer check. We call it after null pointer check.
- Before calling atomic_load_acq_uint(), check adapter->feat_en flags
to save atomic operation call.
- We don't check recovery_mode in ixgbe_set_sysctl_value() because this
function doesn't touch any hardware register.
- NetBSD don't have FreeBSD's atomic_load_acq_int()-like function, so do it
with membar_sync(). Thanks riastradh@ for the advice.
- FreeBSD's ix-3.3.6 changed ixgbe_enable_aim from TRUE to FALSE, but we will
keep it as TRUE because we have already fixed some bugs.
- Remove IXGBE_DEV_ID_82599_LS(0x154f) support again. I don't know why. This
was added in ix-3.2.18.tar.gz(NetBSD: ixgbe_82599.c rev. 1.20) and removed in
ix-3.3.6.tar.gz.
- On X550EMU, use ixgbe_identify_sfp_module_X550em() instead of
ixgbe_identify_module_generic(). ixgbe_identify_sfp_module_X550em() has
extra check (e.g. exclude 1G copper).
- if_sriov.c's change doesn't affect to NetBSD because we don't support
SR-IOV PF function.

branches: 1.21.2;
Apply changes of FreeBSD ix-3.2.18.tgz:
- Add IXGBE_DEV_ID_82599_LS(0x154f) support.
- Increase timeout for newer than ixgbe_mac_X550 (i.e. Xeon-D and Denverton)
in ixgbe_acquire_swfw_sync_X540().
- Add some unused macros (IXGBE_FW_LESM_*).

Sync with FreeBSD r331224 except ixv_if_update_admin_status()'s change:
- Fix length of reading buffer when the command is Read Flash in
ixgbe_host_interface_command().
- Add missing start_hw() call in ixv_init_locked(). This is not a real bug
because start_hw just set hw->adapter_stopped to false and anyone refer it.
- Style change.
- Update comment.

Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

branches: 1.18.2;
Sync with FreeBSD's r326022. All of the following changes have no influence
to netbsd:
- Check ETHERCAP_VLAN_HWTAGGING in ixgbe_setup_vlan_hw_support(). This change
has no influence to netbsd because it's enabled by default and NetBSD has
no API to disable it.
- Fix for netmap module.
- Remove never defined UDP_IPV4_EX
- Add SPDX-License-Identifier

- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

Reduce diff against FreeBSD. No functional change.

branches: 1.15.8;
Update ixg(4) and ixv(4) up to FreeBSD r303890:
- Configure ixgbe phy & gbic power.
Setup phy and gbic power as per Linux 4.3.13 driver.
This fixes link not detected on X540-AT2 after booting to Linux which
turns the phy power off on detach. (FreeBSD r295093)
- Fixup DA cable detection routine. (FreeBSD r303032)
- Some minor changes

Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Update ixg(4) and ixv(4) up to FreeBSD r282299:
- Add support for X55x.
- ADD EEE support (not tested).
- Add WOL support (not tested).
- Add suspend/resume support (not testd).
- Add LPLU support (not tested).
- Add DMA Coalescing (note verified).
- Not tested well for sysctls.
- Fix ixgbe_set_advertise() a bit. At least, FreeBSD r294578 is required
to work hw.ixg0.advertise_speed sysctl correctly.

Update ixg(4) and ixv(4) up to FreeBSD r280197:
- Add support for 82599_QSFP_SF_QP and X540T1.
- Add partial support for X55x. It's required to sync with FreeBSD r282299
to support X55x.
- Bugfixes.

branches: 1.11.2;
Avoid shadowing global `min'.

Avoid shadowing global `min'.

Reduce diff against FreeBSD r280181.

Sync ixg(4) up to FreeBSD r279805 (or r280181) which include some bugfixes.
TODO:
- Merge r280182 and newer. It's required to support X55x.
- MSI/MSI-X support.

Sync ixg(4) up to FreeBSD r250108:
- Cleanup some unused counters and some unused code.
- Improve performance.
- Fix flow control - don't override user value on re-init
- Fix to make 1G optics work correctly
- Change to interrupt enabling - some bits were incorrect
for certain hardware.
- Certain stats fixes, remove a duplicate increment of
ierror, thanks to Scott Long for pointing these out.
- Fix the setting of RX which related to multicast.
- Some netmap related fixes.

Update our ixg(4) driver up to FreeBSD r238149:
- Add TSO6 support.
- The max size in dma tag is changed from 65535 to 262140 (IXGBE_TSO_SIZE).
The value is the same as other *BSDs. The change might cause a address
space shortage (ixgbe_dmamap_create() might fail) on some machines.
- Fix a lot of bugs.
- Improve performance.

Synchronize our ixg(4) driver up to FreeBSD r230775:
- Add X540 support.
- Add 100BaseTX support.
- Fix a lot of bugs.
- Improve performance.

Add 82599EN_SFP and 82599_SFP_SF_QP. Not tested.

Change macro name IXGBE_DEV_ID_82599_SFP_DELL to IXGBE_DEV_ID_82599_SFP_SF2.
Same as OpenBSD and Linux. No binary change.

branches: 1.2.2; 1.2.4;
Add dell's flavor (from uwe, in current-users@)

branches: 1.1.2; 1.1.12; 1.1.16; 1.1.26;
Add sources for ixgbe(4), a Intel 82599 10-gigabit ethernet driver
ported from FreeBSD.

s/filer/filter/ in comment. No functional change.

Update copyright to 2020.

FreeBSD: 8455e365f77f5b66ac9521dbcd690f79345ce147

Whitespace fix. Sync with FreeBSD ix-3.3.14.

Add missing __KERNEL_RCSID().

branches: 1.24.12;
Fix some typos in comments.

From vezhlys on freenode IRC.

branches: 1.23.2;
Sync with FreeBSD ix-3.3.8 part 1. No functional change in this part:
- Move ixgbe_toggle_txdctl() to ixgbe_common.c and modify a bit.
No functional change because this function is currently used for SR-IOV
and it's not used in NetBSD.
- Some modification to match the latest netmap API.
- Modify ixgbe_hic_unlocked(). No functional change because neither
IXGBE_HOST_INTERFACE_APPLY_UPDATE_CMD(0x38) nor
IXGBE_HOST_INTERFACE_SHADOW_RAM_READ_CMD(0x31) are used.
- Add ixgbe_clear_mbx(). No functional change because this function is not
used yet.
- Add some not-yet-used register definitions.
- Whitespace fixes.

Apply FreeBSD ix-3.3.6.tar.gz's change to NetBSD. Tested on C3000 and X550-T1,
but not tested on Xeon D:
- Add firmware recovery mode for X550, X550A(Xeon D) and X550EM (C3000):
- FreeBSD always set IXGBE_FEATURE_RECOVERY_MODE without checking the
NVM image version. We compare it against 2.0 to not to make new callout and
not to call extra atomic operations.
- In some FreeBSD's sysctl functions, atomic_load_acq_int() is called
before a null pointer check. We call it after null pointer check.
- Before calling atomic_load_acq_uint(), check adapter->feat_en flags
to save atomic operation call.
- We don't check recovery_mode in ixgbe_set_sysctl_value() because this
function doesn't touch any hardware register.
- NetBSD don't have FreeBSD's atomic_load_acq_int()-like function, so do it
with membar_sync(). Thanks riastradh@ for the advice.
- FreeBSD's ix-3.3.6 changed ixgbe_enable_aim from TRUE to FALSE, but we will
keep it as TRUE because we have already fixed some bugs.
- Remove IXGBE_DEV_ID_82599_LS(0x154f) support again. I don't know why. This
was added in ix-3.2.18.tar.gz(NetBSD: ixgbe_82599.c rev. 1.20) and removed in
ix-3.3.6.tar.gz.
- On X550EMU, use ixgbe_identify_sfp_module_X550em() instead of
ixgbe_identify_module_generic(). ixgbe_identify_sfp_module_X550em() has
extra check (e.g. exclude 1G copper).
- if_sriov.c's change doesn't affect to NetBSD because we don't support
SR-IOV PF function.

branches: 1.21.2;
Apply changes of FreeBSD ix-3.2.18.tgz:
- Add IXGBE_DEV_ID_82599_LS(0x154f) support.
- Increase timeout for newer than ixgbe_mac_X550 (i.e. Xeon-D and Denverton)
in ixgbe_acquire_swfw_sync_X540().
- Add some unused macros (IXGBE_FW_LESM_*).

Sync with FreeBSD r331224 except ixv_if_update_admin_status()'s change:
- Fix length of reading buffer when the command is Read Flash in
ixgbe_host_interface_command().
- Add missing start_hw() call in ixv_init_locked(). This is not a real bug
because start_hw just set hw->adapter_stopped to false and anyone refer it.
- Style change.
- Update comment.

Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

branches: 1.18.2;
Sync with FreeBSD's r326022. All of the following changes have no influence
to netbsd:
- Check ETHERCAP_VLAN_HWTAGGING in ixgbe_setup_vlan_hw_support(). This change
has no influence to netbsd because it's enabled by default and NetBSD has
no API to disable it.
- Fix for netmap module.
- Remove never defined UDP_IPV4_EX
- Add SPDX-License-Identifier

- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

Reduce diff against FreeBSD. No functional change.

branches: 1.15.8;
Update ixg(4) and ixv(4) up to FreeBSD r303890:
- Configure ixgbe phy & gbic power.
Setup phy and gbic power as per Linux 4.3.13 driver.
This fixes link not detected on X540-AT2 after booting to Linux which
turns the phy power off on detach. (FreeBSD r295093)
- Fixup DA cable detection routine. (FreeBSD r303032)
- Some minor changes

Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Update ixg(4) and ixv(4) up to FreeBSD r282299:
- Add support for X55x.
- ADD EEE support (not tested).
- Add WOL support (not tested).
- Add suspend/resume support (not testd).
- Add LPLU support (not tested).
- Add DMA Coalescing (note verified).
- Not tested well for sysctls.
- Fix ixgbe_set_advertise() a bit. At least, FreeBSD r294578 is required
to work hw.ixg0.advertise_speed sysctl correctly.

Update ixg(4) and ixv(4) up to FreeBSD r280197:
- Add support for 82599_QSFP_SF_QP and X540T1.
- Add partial support for X55x. It's required to sync with FreeBSD r282299
to support X55x.
- Bugfixes.

branches: 1.11.2;
Avoid shadowing global `min'.

Avoid shadowing global `min'.

Reduce diff against FreeBSD r280181.

Sync ixg(4) up to FreeBSD r279805 (or r280181) which include some bugfixes.
TODO:
- Merge r280182 and newer. It's required to support X55x.
- MSI/MSI-X support.

Sync ixg(4) up to FreeBSD r250108:
- Cleanup some unused counters and some unused code.
- Improve performance.
- Fix flow control - don't override user value on re-init
- Fix to make 1G optics work correctly
- Change to interrupt enabling - some bits were incorrect
for certain hardware.
- Certain stats fixes, remove a duplicate increment of
ierror, thanks to Scott Long for pointing these out.
- Fix the setting of RX which related to multicast.
- Some netmap related fixes.

Update our ixg(4) driver up to FreeBSD r238149:
- Add TSO6 support.
- The max size in dma tag is changed from 65535 to 262140 (IXGBE_TSO_SIZE).
The value is the same as other *BSDs. The change might cause a address
space shortage (ixgbe_dmamap_create() might fail) on some machines.
- Fix a lot of bugs.
- Improve performance.

Synchronize our ixg(4) driver up to FreeBSD r230775:
- Add X540 support.
- Add 100BaseTX support.
- Fix a lot of bugs.
- Improve performance.

Add 82599EN_SFP and 82599_SFP_SF_QP. Not tested.

Change macro name IXGBE_DEV_ID_82599_SFP_DELL to IXGBE_DEV_ID_82599_SFP_SF2.
Same as OpenBSD and Linux. No binary change.

branches: 1.2.2; 1.2.4;
Add dell's flavor (from uwe, in current-users@)

branches: 1.1.2; 1.1.12; 1.1.16; 1.1.26;
Add sources for ixgbe(4), a Intel 82599 10-gigabit ethernet driver
ported from FreeBSD.

Update copyright to 2020.

FreeBSD: 8455e365f77f5b66ac9521dbcd690f79345ce147

Whitespace fix. Sync with FreeBSD ix-3.3.14.

Add missing __KERNEL_RCSID().

branches: 1.24.12;
Fix some typos in comments.

From vezhlys on freenode IRC.

branches: 1.23.2;
Sync with FreeBSD ix-3.3.8 part 1. No functional change in this part:
- Move ixgbe_toggle_txdctl() to ixgbe_common.c and modify a bit.
No functional change because this function is currently used for SR-IOV
and it's not used in NetBSD.
- Some modification to match the latest netmap API.
- Modify ixgbe_hic_unlocked(). No functional change because neither
IXGBE_HOST_INTERFACE_APPLY_UPDATE_CMD(0x38) nor
IXGBE_HOST_INTERFACE_SHADOW_RAM_READ_CMD(0x31) are used.
- Add ixgbe_clear_mbx(). No functional change because this function is not
used yet.
- Add some not-yet-used register definitions.
- Whitespace fixes.

Apply FreeBSD ix-3.3.6.tar.gz's change to NetBSD. Tested on C3000 and X550-T1,
but not tested on Xeon D:
- Add firmware recovery mode for X550, X550A(Xeon D) and X550EM (C3000):
- FreeBSD always set IXGBE_FEATURE_RECOVERY_MODE without checking the
NVM image version. We compare it against 2.0 to not to make new callout and
not to call extra atomic operations.
- In some FreeBSD's sysctl functions, atomic_load_acq_int() is called
before a null pointer check. We call it after null pointer check.
- Before calling atomic_load_acq_uint(), check adapter->feat_en flags
to save atomic operation call.
- We don't check recovery_mode in ixgbe_set_sysctl_value() because this
function doesn't touch any hardware register.
- NetBSD don't have FreeBSD's atomic_load_acq_int()-like function, so do it
with membar_sync(). Thanks riastradh@ for the advice.
- FreeBSD's ix-3.3.6 changed ixgbe_enable_aim from TRUE to FALSE, but we will
keep it as TRUE because we have already fixed some bugs.
- Remove IXGBE_DEV_ID_82599_LS(0x154f) support again. I don't know why. This
was added in ix-3.2.18.tar.gz(NetBSD: ixgbe_82599.c rev. 1.20) and removed in
ix-3.3.6.tar.gz.
- On X550EMU, use ixgbe_identify_sfp_module_X550em() instead of
ixgbe_identify_module_generic(). ixgbe_identify_sfp_module_X550em() has
extra check (e.g. exclude 1G copper).
- if_sriov.c's change doesn't affect to NetBSD because we don't support
SR-IOV PF function.

branches: 1.21.2;
Apply changes of FreeBSD ix-3.2.18.tgz:
- Add IXGBE_DEV_ID_82599_LS(0x154f) support.
- Increase timeout for newer than ixgbe_mac_X550 (i.e. Xeon-D and Denverton)
in ixgbe_acquire_swfw_sync_X540().
- Add some unused macros (IXGBE_FW_LESM_*).

Sync with FreeBSD r331224 except ixv_if_update_admin_status()'s change:
- Fix length of reading buffer when the command is Read Flash in
ixgbe_host_interface_command().
- Add missing start_hw() call in ixv_init_locked(). This is not a real bug
because start_hw just set hw->adapter_stopped to false and anyone refer it.
- Style change.
- Update comment.

Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

branches: 1.18.2;
Sync with FreeBSD's r326022. All of the following changes have no influence
to netbsd:
- Check ETHERCAP_VLAN_HWTAGGING in ixgbe_setup_vlan_hw_support(). This change
has no influence to netbsd because it's enabled by default and NetBSD has
no API to disable it.
- Fix for netmap module.
- Remove never defined UDP_IPV4_EX
- Add SPDX-License-Identifier

- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

Reduce diff against FreeBSD. No functional change.

branches: 1.15.8;
Update ixg(4) and ixv(4) up to FreeBSD r303890:
- Configure ixgbe phy & gbic power.
Setup phy and gbic power as per Linux 4.3.13 driver.
This fixes link not detected on X540-AT2 after booting to Linux which
turns the phy power off on detach. (FreeBSD r295093)
- Fixup DA cable detection routine. (FreeBSD r303032)
- Some minor changes

Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Update ixg(4) and ixv(4) up to FreeBSD r282299:
- Add support for X55x.
- ADD EEE support (not tested).
- Add WOL support (not tested).
- Add suspend/resume support (not testd).
- Add LPLU support (not tested).
- Add DMA Coalescing (note verified).
- Not tested well for sysctls.
- Fix ixgbe_set_advertise() a bit. At least, FreeBSD r294578 is required
to work hw.ixg0.advertise_speed sysctl correctly.

Update ixg(4) and ixv(4) up to FreeBSD r280197:
- Add support for 82599_QSFP_SF_QP and X540T1.
- Add partial support for X55x. It's required to sync with FreeBSD r282299
to support X55x.
- Bugfixes.

branches: 1.11.2;
Avoid shadowing global `min'.

Avoid shadowing global `min'.

Reduce diff against FreeBSD r280181.

Sync ixg(4) up to FreeBSD r279805 (or r280181) which include some bugfixes.
TODO:
- Merge r280182 and newer. It's required to support X55x.
- MSI/MSI-X support.

Sync ixg(4) up to FreeBSD r250108:
- Cleanup some unused counters and some unused code.
- Improve performance.
- Fix flow control - don't override user value on re-init
- Fix to make 1G optics work correctly
- Change to interrupt enabling - some bits were incorrect
for certain hardware.
- Certain stats fixes, remove a duplicate increment of
ierror, thanks to Scott Long for pointing these out.
- Fix the setting of RX which related to multicast.
- Some netmap related fixes.

Update our ixg(4) driver up to FreeBSD r238149:
- Add TSO6 support.
- The max size in dma tag is changed from 65535 to 262140 (IXGBE_TSO_SIZE).
The value is the same as other *BSDs. The change might cause a address
space shortage (ixgbe_dmamap_create() might fail) on some machines.
- Fix a lot of bugs.
- Improve performance.

Synchronize our ixg(4) driver up to FreeBSD r230775:
- Add X540 support.
- Add 100BaseTX support.
- Fix a lot of bugs.
- Improve performance.

Add 82599EN_SFP and 82599_SFP_SF_QP. Not tested.

Change macro name IXGBE_DEV_ID_82599_SFP_DELL to IXGBE_DEV_ID_82599_SFP_SF2.
Same as OpenBSD and Linux. No binary change.

branches: 1.2.2; 1.2.4;
Add dell's flavor (from uwe, in current-users@)

branches: 1.1.2; 1.1.12; 1.1.16; 1.1.26;
Add sources for ixgbe(4), a Intel 82599 10-gigabit ethernet driver
ported from FreeBSD.

Whitespace fix. Sync with FreeBSD ix-3.3.14.

Add missing __KERNEL_RCSID().

branches: 1.24.12;
Fix some typos in comments.

From vezhlys on freenode IRC.

branches: 1.23.2;
Sync with FreeBSD ix-3.3.8 part 1. No functional change in this part:
- Move ixgbe_toggle_txdctl() to ixgbe_common.c and modify a bit.
No functional change because this function is currently used for SR-IOV
and it's not used in NetBSD.
- Some modification to match the latest netmap API.
- Modify ixgbe_hic_unlocked(). No functional change because neither
IXGBE_HOST_INTERFACE_APPLY_UPDATE_CMD(0x38) nor
IXGBE_HOST_INTERFACE_SHADOW_RAM_READ_CMD(0x31) are used.
- Add ixgbe_clear_mbx(). No functional change because this function is not
used yet.
- Add some not-yet-used register definitions.
- Whitespace fixes.

Apply FreeBSD ix-3.3.6.tar.gz's change to NetBSD. Tested on C3000 and X550-T1,
but not tested on Xeon D:
- Add firmware recovery mode for X550, X550A(Xeon D) and X550EM (C3000):
- FreeBSD always set IXGBE_FEATURE_RECOVERY_MODE without checking the
NVM image version. We compare it against 2.0 to not to make new callout and
not to call extra atomic operations.
- In some FreeBSD's sysctl functions, atomic_load_acq_int() is called
before a null pointer check. We call it after null pointer check.
- Before calling atomic_load_acq_uint(), check adapter->feat_en flags
to save atomic operation call.
- We don't check recovery_mode in ixgbe_set_sysctl_value() because this
function doesn't touch any hardware register.
- NetBSD don't have FreeBSD's atomic_load_acq_int()-like function, so do it
with membar_sync(). Thanks riastradh@ for the advice.
- FreeBSD's ix-3.3.6 changed ixgbe_enable_aim from TRUE to FALSE, but we will
keep it as TRUE because we have already fixed some bugs.
- Remove IXGBE_DEV_ID_82599_LS(0x154f) support again. I don't know why. This
was added in ix-3.2.18.tar.gz(NetBSD: ixgbe_82599.c rev. 1.20) and removed in
ix-3.3.6.tar.gz.
- On X550EMU, use ixgbe_identify_sfp_module_X550em() instead of
ixgbe_identify_module_generic(). ixgbe_identify_sfp_module_X550em() has
extra check (e.g. exclude 1G copper).
- if_sriov.c's change doesn't affect to NetBSD because we don't support
SR-IOV PF function.

branches: 1.21.2;
Apply changes of FreeBSD ix-3.2.18.tgz:
- Add IXGBE_DEV_ID_82599_LS(0x154f) support.
- Increase timeout for newer than ixgbe_mac_X550 (i.e. Xeon-D and Denverton)
in ixgbe_acquire_swfw_sync_X540().
- Add some unused macros (IXGBE_FW_LESM_*).

Sync with FreeBSD r331224 except ixv_if_update_admin_status()'s change:
- Fix length of reading buffer when the command is Read Flash in
ixgbe_host_interface_command().
- Add missing start_hw() call in ixv_init_locked(). This is not a real bug
because start_hw just set hw->adapter_stopped to false and anyone refer it.
- Style change.
- Update comment.

Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

branches: 1.18.2;
Sync with FreeBSD's r326022. All of the following changes have no influence
to netbsd:
- Check ETHERCAP_VLAN_HWTAGGING in ixgbe_setup_vlan_hw_support(). This change
has no influence to netbsd because it's enabled by default and NetBSD has
no API to disable it.
- Fix for netmap module.
- Remove never defined UDP_IPV4_EX
- Add SPDX-License-Identifier

- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

Reduce diff against FreeBSD. No functional change.

branches: 1.15.8;
Update ixg(4) and ixv(4) up to FreeBSD r303890:
- Configure ixgbe phy & gbic power.
Setup phy and gbic power as per Linux 4.3.13 driver.
This fixes link not detected on X540-AT2 after booting to Linux which
turns the phy power off on detach. (FreeBSD r295093)
- Fixup DA cable detection routine. (FreeBSD r303032)
- Some minor changes

Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Update ixg(4) and ixv(4) up to FreeBSD r282299:
- Add support for X55x.
- ADD EEE support (not tested).
- Add WOL support (not tested).
- Add suspend/resume support (not testd).
- Add LPLU support (not tested).
- Add DMA Coalescing (note verified).
- Not tested well for sysctls.
- Fix ixgbe_set_advertise() a bit. At least, FreeBSD r294578 is required
to work hw.ixg0.advertise_speed sysctl correctly.

Update ixg(4) and ixv(4) up to FreeBSD r280197:
- Add support for 82599_QSFP_SF_QP and X540T1.
- Add partial support for X55x. It's required to sync with FreeBSD r282299
to support X55x.
- Bugfixes.

branches: 1.11.2;
Avoid shadowing global `min'.

Avoid shadowing global `min'.

Reduce diff against FreeBSD r280181.

Sync ixg(4) up to FreeBSD r279805 (or r280181) which include some bugfixes.
TODO:
- Merge r280182 and newer. It's required to support X55x.
- MSI/MSI-X support.

Sync ixg(4) up to FreeBSD r250108:
- Cleanup some unused counters and some unused code.
- Improve performance.
- Fix flow control - don't override user value on re-init
- Fix to make 1G optics work correctly
- Change to interrupt enabling - some bits were incorrect
for certain hardware.
- Certain stats fixes, remove a duplicate increment of
ierror, thanks to Scott Long for pointing these out.
- Fix the setting of RX which related to multicast.
- Some netmap related fixes.

Update our ixg(4) driver up to FreeBSD r238149:
- Add TSO6 support.
- The max size in dma tag is changed from 65535 to 262140 (IXGBE_TSO_SIZE).
The value is the same as other *BSDs. The change might cause a address
space shortage (ixgbe_dmamap_create() might fail) on some machines.
- Fix a lot of bugs.
- Improve performance.

Synchronize our ixg(4) driver up to FreeBSD r230775:
- Add X540 support.
- Add 100BaseTX support.
- Fix a lot of bugs.
- Improve performance.

Add 82599EN_SFP and 82599_SFP_SF_QP. Not tested.

Change macro name IXGBE_DEV_ID_82599_SFP_DELL to IXGBE_DEV_ID_82599_SFP_SF2.
Same as OpenBSD and Linux. No binary change.

branches: 1.2.2; 1.2.4;
Add dell's flavor (from uwe, in current-users@)

branches: 1.1.2; 1.1.12; 1.1.16; 1.1.26;
Add sources for ixgbe(4), a Intel 82599 10-gigabit ethernet driver
ported from FreeBSD.

Add missing __KERNEL_RCSID().

Fix some typos in comments.

From vezhlys on freenode IRC.

branches: 1.23.2;
Sync with FreeBSD ix-3.3.8 part 1. No functional change in this part:
- Move ixgbe_toggle_txdctl() to ixgbe_common.c and modify a bit.
No functional change because this function is currently used for SR-IOV
and it's not used in NetBSD.
- Some modification to match the latest netmap API.
- Modify ixgbe_hic_unlocked(). No functional change because neither
IXGBE_HOST_INTERFACE_APPLY_UPDATE_CMD(0x38) nor
IXGBE_HOST_INTERFACE_SHADOW_RAM_READ_CMD(0x31) are used.
- Add ixgbe_clear_mbx(). No functional change because this function is not
used yet.
- Add some not-yet-used register definitions.
- Whitespace fixes.

Apply FreeBSD ix-3.3.6.tar.gz's change to NetBSD. Tested on C3000 and X550-T1,
but not tested on Xeon D:
- Add firmware recovery mode for X550, X550A(Xeon D) and X550EM (C3000):
- FreeBSD always set IXGBE_FEATURE_RECOVERY_MODE without checking the
NVM image version. We compare it against 2.0 to not to make new callout and
not to call extra atomic operations.
- In some FreeBSD's sysctl functions, atomic_load_acq_int() is called
before a null pointer check. We call it after null pointer check.
- Before calling atomic_load_acq_uint(), check adapter->feat_en flags
to save atomic operation call.
- We don't check recovery_mode in ixgbe_set_sysctl_value() because this
function doesn't touch any hardware register.
- NetBSD don't have FreeBSD's atomic_load_acq_int()-like function, so do it
with membar_sync(). Thanks riastradh@ for the advice.
- FreeBSD's ix-3.3.6 changed ixgbe_enable_aim from TRUE to FALSE, but we will
keep it as TRUE because we have already fixed some bugs.
- Remove IXGBE_DEV_ID_82599_LS(0x154f) support again. I don't know why. This
was added in ix-3.2.18.tar.gz(NetBSD: ixgbe_82599.c rev. 1.20) and removed in
ix-3.3.6.tar.gz.
- On X550EMU, use ixgbe_identify_sfp_module_X550em() instead of
ixgbe_identify_module_generic(). ixgbe_identify_sfp_module_X550em() has
extra check (e.g. exclude 1G copper).
- if_sriov.c's change doesn't affect to NetBSD because we don't support
SR-IOV PF function.

branches: 1.21.2;
Apply changes of FreeBSD ix-3.2.18.tgz:
- Add IXGBE_DEV_ID_82599_LS(0x154f) support.
- Increase timeout for newer than ixgbe_mac_X550 (i.e. Xeon-D and Denverton)
in ixgbe_acquire_swfw_sync_X540().
- Add some unused macros (IXGBE_FW_LESM_*).

Sync with FreeBSD r331224 except ixv_if_update_admin_status()'s change:
- Fix length of reading buffer when the command is Read Flash in
ixgbe_host_interface_command().
- Add missing start_hw() call in ixv_init_locked(). This is not a real bug
because start_hw just set hw->adapter_stopped to false and anyone refer it.
- Style change.
- Update comment.

Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

branches: 1.18.2;
Sync with FreeBSD's r326022. All of the following changes have no influence
to netbsd:
- Check ETHERCAP_VLAN_HWTAGGING in ixgbe_setup_vlan_hw_support(). This change
has no influence to netbsd because it's enabled by default and NetBSD has
no API to disable it.
- Fix for netmap module.
- Remove never defined UDP_IPV4_EX
- Add SPDX-License-Identifier

- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

Reduce diff against FreeBSD. No functional change.

branches: 1.15.8;
Update ixg(4) and ixv(4) up to FreeBSD r303890:
- Configure ixgbe phy & gbic power.
Setup phy and gbic power as per Linux 4.3.13 driver.
This fixes link not detected on X540-AT2 after booting to Linux which
turns the phy power off on detach. (FreeBSD r295093)
- Fixup DA cable detection routine. (FreeBSD r303032)
- Some minor changes

Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Update ixg(4) and ixv(4) up to FreeBSD r282299:
- Add support for X55x.
- ADD EEE support (not tested).
- Add WOL support (not tested).
- Add suspend/resume support (not testd).
- Add LPLU support (not tested).
- Add DMA Coalescing (note verified).
- Not tested well for sysctls.
- Fix ixgbe_set_advertise() a bit. At least, FreeBSD r294578 is required
to work hw.ixg0.advertise_speed sysctl correctly.

Update ixg(4) and ixv(4) up to FreeBSD r280197:
- Add support for 82599_QSFP_SF_QP and X540T1.
- Add partial support for X55x. It's required to sync with FreeBSD r282299
to support X55x.
- Bugfixes.

branches: 1.11.2;
Avoid shadowing global `min'.

Avoid shadowing global `min'.

Reduce diff against FreeBSD r280181.

Sync ixg(4) up to FreeBSD r279805 (or r280181) which include some bugfixes.
TODO:
- Merge r280182 and newer. It's required to support X55x.
- MSI/MSI-X support.

Sync ixg(4) up to FreeBSD r250108:
- Cleanup some unused counters and some unused code.
- Improve performance.
- Fix flow control - don't override user value on re-init
- Fix to make 1G optics work correctly
- Change to interrupt enabling - some bits were incorrect
for certain hardware.
- Certain stats fixes, remove a duplicate increment of
ierror, thanks to Scott Long for pointing these out.
- Fix the setting of RX which related to multicast.
- Some netmap related fixes.

Update our ixg(4) driver up to FreeBSD r238149:
- Add TSO6 support.
- The max size in dma tag is changed from 65535 to 262140 (IXGBE_TSO_SIZE).
The value is the same as other *BSDs. The change might cause a address
space shortage (ixgbe_dmamap_create() might fail) on some machines.
- Fix a lot of bugs.
- Improve performance.

Synchronize our ixg(4) driver up to FreeBSD r230775:
- Add X540 support.
- Add 100BaseTX support.
- Fix a lot of bugs.
- Improve performance.

Add 82599EN_SFP and 82599_SFP_SF_QP. Not tested.

Change macro name IXGBE_DEV_ID_82599_SFP_DELL to IXGBE_DEV_ID_82599_SFP_SF2.
Same as OpenBSD and Linux. No binary change.

branches: 1.2.2; 1.2.4;
Add dell's flavor (from uwe, in current-users@)

branches: 1.1.2; 1.1.12; 1.1.16; 1.1.26;
Add sources for ixgbe(4), a Intel 82599 10-gigabit ethernet driver
ported from FreeBSD.

Fix some typos in comments.

From vezhlys on freenode IRC.

Sync with FreeBSD ix-3.3.8 part 1. No functional change in this part:
- Move ixgbe_toggle_txdctl() to ixgbe_common.c and modify a bit.
No functional change because this function is currently used for SR-IOV
and it's not used in NetBSD.
- Some modification to match the latest netmap API.
- Modify ixgbe_hic_unlocked(). No functional change because neither
IXGBE_HOST_INTERFACE_APPLY_UPDATE_CMD(0x38) nor
IXGBE_HOST_INTERFACE_SHADOW_RAM_READ_CMD(0x31) are used.
- Add ixgbe_clear_mbx(). No functional change because this function is not
used yet.
- Add some not-yet-used register definitions.
- Whitespace fixes.

Apply FreeBSD ix-3.3.6.tar.gz's change to NetBSD. Tested on C3000 and X550-T1,
but not tested on Xeon D:
- Add firmware recovery mode for X550, X550A(Xeon D) and X550EM (C3000):
- FreeBSD always set IXGBE_FEATURE_RECOVERY_MODE without checking the
NVM image version. We compare it against 2.0 to not to make new callout and
not to call extra atomic operations.
- In some FreeBSD's sysctl functions, atomic_load_acq_int() is called
before a null pointer check. We call it after null pointer check.
- Before calling atomic_load_acq_uint(), check adapter->feat_en flags
to save atomic operation call.
- We don't check recovery_mode in ixgbe_set_sysctl_value() because this
function doesn't touch any hardware register.
- NetBSD don't have FreeBSD's atomic_load_acq_int()-like function, so do it
with membar_sync(). Thanks riastradh@ for the advice.
- FreeBSD's ix-3.3.6 changed ixgbe_enable_aim from TRUE to FALSE, but we will
keep it as TRUE because we have already fixed some bugs.
- Remove IXGBE_DEV_ID_82599_LS(0x154f) support again. I don't know why. This
was added in ix-3.2.18.tar.gz(NetBSD: ixgbe_82599.c rev. 1.20) and removed in
ix-3.3.6.tar.gz.
- On X550EMU, use ixgbe_identify_sfp_module_X550em() instead of
ixgbe_identify_module_generic(). ixgbe_identify_sfp_module_X550em() has
extra check (e.g. exclude 1G copper).
- if_sriov.c's change doesn't affect to NetBSD because we don't support
SR-IOV PF function.

branches: 1.21.2;
Apply changes of FreeBSD ix-3.2.18.tgz:
- Add IXGBE_DEV_ID_82599_LS(0x154f) support.
- Increase timeout for newer than ixgbe_mac_X550 (i.e. Xeon-D and Denverton)
in ixgbe_acquire_swfw_sync_X540().
- Add some unused macros (IXGBE_FW_LESM_*).

Sync with FreeBSD r331224 except ixv_if_update_admin_status()'s change:
- Fix length of reading buffer when the command is Read Flash in
ixgbe_host_interface_command().
- Add missing start_hw() call in ixv_init_locked(). This is not a real bug
because start_hw just set hw->adapter_stopped to false and anyone refer it.
- Style change.
- Update comment.

Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

branches: 1.18.2;
Sync with FreeBSD's r326022. All of the following changes have no influence
to netbsd:
- Check ETHERCAP_VLAN_HWTAGGING in ixgbe_setup_vlan_hw_support(). This change
has no influence to netbsd because it's enabled by default and NetBSD has
no API to disable it.
- Fix for netmap module.
- Remove never defined UDP_IPV4_EX
- Add SPDX-License-Identifier

- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

Reduce diff against FreeBSD. No functional change.

branches: 1.15.8;
Update ixg(4) and ixv(4) up to FreeBSD r303890:
- Configure ixgbe phy & gbic power.
Setup phy and gbic power as per Linux 4.3.13 driver.
This fixes link not detected on X540-AT2 after booting to Linux which
turns the phy power off on detach. (FreeBSD r295093)
- Fixup DA cable detection routine. (FreeBSD r303032)
- Some minor changes

Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Update ixg(4) and ixv(4) up to FreeBSD r282299:
- Add support for X55x.
- ADD EEE support (not tested).
- Add WOL support (not tested).
- Add suspend/resume support (not testd).
- Add LPLU support (not tested).
- Add DMA Coalescing (note verified).
- Not tested well for sysctls.
- Fix ixgbe_set_advertise() a bit. At least, FreeBSD r294578 is required
to work hw.ixg0.advertise_speed sysctl correctly.

Update ixg(4) and ixv(4) up to FreeBSD r280197:
- Add support for 82599_QSFP_SF_QP and X540T1.
- Add partial support for X55x. It's required to sync with FreeBSD r282299
to support X55x.
- Bugfixes.

branches: 1.11.2;
Avoid shadowing global `min'.

Avoid shadowing global `min'.

Reduce diff against FreeBSD r280181.

Sync ixg(4) up to FreeBSD r279805 (or r280181) which include some bugfixes.
TODO:
- Merge r280182 and newer. It's required to support X55x.
- MSI/MSI-X support.

Sync ixg(4) up to FreeBSD r250108:
- Cleanup some unused counters and some unused code.
- Improve performance.
- Fix flow control - don't override user value on re-init
- Fix to make 1G optics work correctly
- Change to interrupt enabling - some bits were incorrect
for certain hardware.
- Certain stats fixes, remove a duplicate increment of
ierror, thanks to Scott Long for pointing these out.
- Fix the setting of RX which related to multicast.
- Some netmap related fixes.

Update our ixg(4) driver up to FreeBSD r238149:
- Add TSO6 support.
- The max size in dma tag is changed from 65535 to 262140 (IXGBE_TSO_SIZE).
The value is the same as other *BSDs. The change might cause a address
space shortage (ixgbe_dmamap_create() might fail) on some machines.
- Fix a lot of bugs.
- Improve performance.

Synchronize our ixg(4) driver up to FreeBSD r230775:
- Add X540 support.
- Add 100BaseTX support.
- Fix a lot of bugs.
- Improve performance.

Add 82599EN_SFP and 82599_SFP_SF_QP. Not tested.

Change macro name IXGBE_DEV_ID_82599_SFP_DELL to IXGBE_DEV_ID_82599_SFP_SF2.
Same as OpenBSD and Linux. No binary change.

branches: 1.2.2; 1.2.4;
Add dell's flavor (from uwe, in current-users@)

branches: 1.1.2; 1.1.12; 1.1.16; 1.1.26;
Add sources for ixgbe(4), a Intel 82599 10-gigabit ethernet driver
ported from FreeBSD.

Sync with FreeBSD ix-3.3.8 part 1. No functional change in this part:
- Move ixgbe_toggle_txdctl() to ixgbe_common.c and modify a bit.
No functional change because this function is currently used for SR-IOV
and it's not used in NetBSD.
- Some modification to match the latest netmap API.
- Modify ixgbe_hic_unlocked(). No functional change because neither
IXGBE_HOST_INTERFACE_APPLY_UPDATE_CMD(0x38) nor
IXGBE_HOST_INTERFACE_SHADOW_RAM_READ_CMD(0x31) are used.
- Add ixgbe_clear_mbx(). No functional change because this function is not
used yet.
- Add some not-yet-used register definitions.
- Whitespace fixes.

Apply FreeBSD ix-3.3.6.tar.gz's change to NetBSD. Tested on C3000 and X550-T1,
but not tested on Xeon D:
- Add firmware recovery mode for X550, X550A(Xeon D) and X550EM (C3000):
- FreeBSD always set IXGBE_FEATURE_RECOVERY_MODE without checking the
NVM image version. We compare it against 2.0 to not to make new callout and
not to call extra atomic operations.
- In some FreeBSD's sysctl functions, atomic_load_acq_int() is called
before a null pointer check. We call it after null pointer check.
- Before calling atomic_load_acq_uint(), check adapter->feat_en flags
to save atomic operation call.
- We don't check recovery_mode in ixgbe_set_sysctl_value() because this
function doesn't touch any hardware register.
- NetBSD don't have FreeBSD's atomic_load_acq_int()-like function, so do it
with membar_sync(). Thanks riastradh@ for the advice.
- FreeBSD's ix-3.3.6 changed ixgbe_enable_aim from TRUE to FALSE, but we will
keep it as TRUE because we have already fixed some bugs.
- Remove IXGBE_DEV_ID_82599_LS(0x154f) support again. I don't know why. This
was added in ix-3.2.18.tar.gz(NetBSD: ixgbe_82599.c rev. 1.20) and removed in
ix-3.3.6.tar.gz.
- On X550EMU, use ixgbe_identify_sfp_module_X550em() instead of
ixgbe_identify_module_generic(). ixgbe_identify_sfp_module_X550em() has
extra check (e.g. exclude 1G copper).
- if_sriov.c's change doesn't affect to NetBSD because we don't support
SR-IOV PF function.

branches: 1.21.2;
Apply changes of FreeBSD ix-3.2.18.tgz:
- Add IXGBE_DEV_ID_82599_LS(0x154f) support.
- Increase timeout for newer than ixgbe_mac_X550 (i.e. Xeon-D and Denverton)
in ixgbe_acquire_swfw_sync_X540().
- Add some unused macros (IXGBE_FW_LESM_*).

Sync with FreeBSD r331224 except ixv_if_update_admin_status()'s change:
- Fix length of reading buffer when the command is Read Flash in
ixgbe_host_interface_command().
- Add missing start_hw() call in ixv_init_locked(). This is not a real bug
because start_hw just set hw->adapter_stopped to false and anyone refer it.
- Style change.
- Update comment.

Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

branches: 1.18.2;
Sync with FreeBSD's r326022. All of the following changes have no influence
to netbsd:
- Check ETHERCAP_VLAN_HWTAGGING in ixgbe_setup_vlan_hw_support(). This change
has no influence to netbsd because it's enabled by default and NetBSD has
no API to disable it.
- Fix for netmap module.
- Remove never defined UDP_IPV4_EX
- Add SPDX-License-Identifier

- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

Reduce diff against FreeBSD. No functional change.

branches: 1.15.8;
Update ixg(4) and ixv(4) up to FreeBSD r303890:
- Configure ixgbe phy & gbic power.
Setup phy and gbic power as per Linux 4.3.13 driver.
This fixes link not detected on X540-AT2 after booting to Linux which
turns the phy power off on detach. (FreeBSD r295093)
- Fixup DA cable detection routine. (FreeBSD r303032)
- Some minor changes

Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Update ixg(4) and ixv(4) up to FreeBSD r282299:
- Add support for X55x.
- ADD EEE support (not tested).
- Add WOL support (not tested).
- Add suspend/resume support (not testd).
- Add LPLU support (not tested).
- Add DMA Coalescing (note verified).
- Not tested well for sysctls.
- Fix ixgbe_set_advertise() a bit. At least, FreeBSD r294578 is required
to work hw.ixg0.advertise_speed sysctl correctly.

Update ixg(4) and ixv(4) up to FreeBSD r280197:
- Add support for 82599_QSFP_SF_QP and X540T1.
- Add partial support for X55x. It's required to sync with FreeBSD r282299
to support X55x.
- Bugfixes.

branches: 1.11.2;
Avoid shadowing global `min'.

Avoid shadowing global `min'.

Reduce diff against FreeBSD r280181.

Sync ixg(4) up to FreeBSD r279805 (or r280181) which include some bugfixes.
TODO:
- Merge r280182 and newer. It's required to support X55x.
- MSI/MSI-X support.

Sync ixg(4) up to FreeBSD r250108:
- Cleanup some unused counters and some unused code.
- Improve performance.
- Fix flow control - don't override user value on re-init
- Fix to make 1G optics work correctly
- Change to interrupt enabling - some bits were incorrect
for certain hardware.
- Certain stats fixes, remove a duplicate increment of
ierror, thanks to Scott Long for pointing these out.
- Fix the setting of RX which related to multicast.
- Some netmap related fixes.

Update our ixg(4) driver up to FreeBSD r238149:
- Add TSO6 support.
- The max size in dma tag is changed from 65535 to 262140 (IXGBE_TSO_SIZE).
The value is the same as other *BSDs. The change might cause a address
space shortage (ixgbe_dmamap_create() might fail) on some machines.
- Fix a lot of bugs.
- Improve performance.

Synchronize our ixg(4) driver up to FreeBSD r230775:
- Add X540 support.
- Add 100BaseTX support.
- Fix a lot of bugs.
- Improve performance.

Add 82599EN_SFP and 82599_SFP_SF_QP. Not tested.

Change macro name IXGBE_DEV_ID_82599_SFP_DELL to IXGBE_DEV_ID_82599_SFP_SF2.
Same as OpenBSD and Linux. No binary change.

branches: 1.2.2; 1.2.4;
Add dell's flavor (from uwe, in current-users@)

branches: 1.1.2; 1.1.12; 1.1.16; 1.1.26;
Add sources for ixgbe(4), a Intel 82599 10-gigabit ethernet driver
ported from FreeBSD.

Apply FreeBSD ix-3.3.6.tar.gz's change to NetBSD. Tested on C3000 and X550-T1,
but not tested on Xeon D:
- Add firmware recovery mode for X550, X550A(Xeon D) and X550EM (C3000):
- FreeBSD always set IXGBE_FEATURE_RECOVERY_MODE without checking the
NVM image version. We compare it against 2.0 to not to make new callout and
not to call extra atomic operations.
- In some FreeBSD's sysctl functions, atomic_load_acq_int() is called
before a null pointer check. We call it after null pointer check.
- Before calling atomic_load_acq_uint(), check adapter->feat_en flags
to save atomic operation call.
- We don't check recovery_mode in ixgbe_set_sysctl_value() because this
function doesn't touch any hardware register.
- NetBSD don't have FreeBSD's atomic_load_acq_int()-like function, so do it
with membar_sync(). Thanks riastradh@ for the advice.
- FreeBSD's ix-3.3.6 changed ixgbe_enable_aim from TRUE to FALSE, but we will
keep it as TRUE because we have already fixed some bugs.
- Remove IXGBE_DEV_ID_82599_LS(0x154f) support again. I don't know why. This
was added in ix-3.2.18.tar.gz(NetBSD: ixgbe_82599.c rev. 1.20) and removed in
ix-3.3.6.tar.gz.
- On X550EMU, use ixgbe_identify_sfp_module_X550em() instead of
ixgbe_identify_module_generic(). ixgbe_identify_sfp_module_X550em() has
extra check (e.g. exclude 1G copper).
- if_sriov.c's change doesn't affect to NetBSD because we don't support
SR-IOV PF function.

Apply changes of FreeBSD ix-3.2.18.tgz:
- Add IXGBE_DEV_ID_82599_LS(0x154f) support.
- Increase timeout for newer than ixgbe_mac_X550 (i.e. Xeon-D and Denverton)
in ixgbe_acquire_swfw_sync_X540().
- Add some unused macros (IXGBE_FW_LESM_*).

Sync with FreeBSD r331224 except ixv_if_update_admin_status()'s change:
- Fix length of reading buffer when the command is Read Flash in
ixgbe_host_interface_command().
- Add missing start_hw() call in ixv_init_locked(). This is not a real bug
because start_hw just set hw->adapter_stopped to false and anyone refer it.
- Style change.
- Update comment.

Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

branches: 1.18.2;
Sync with FreeBSD's r326022. All of the following changes have no influence
to netbsd:
- Check ETHERCAP_VLAN_HWTAGGING in ixgbe_setup_vlan_hw_support(). This change
has no influence to netbsd because it's enabled by default and NetBSD has
no API to disable it.
- Fix for netmap module.
- Remove never defined UDP_IPV4_EX
- Add SPDX-License-Identifier

- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

Reduce diff against FreeBSD. No functional change.

branches: 1.15.8;
Update ixg(4) and ixv(4) up to FreeBSD r303890:
- Configure ixgbe phy & gbic power.
Setup phy and gbic power as per Linux 4.3.13 driver.
This fixes link not detected on X540-AT2 after booting to Linux which
turns the phy power off on detach. (FreeBSD r295093)
- Fixup DA cable detection routine. (FreeBSD r303032)
- Some minor changes

Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Update ixg(4) and ixv(4) up to FreeBSD r282299:
- Add support for X55x.
- ADD EEE support (not tested).
- Add WOL support (not tested).
- Add suspend/resume support (not testd).
- Add LPLU support (not tested).
- Add DMA Coalescing (note verified).
- Not tested well for sysctls.
- Fix ixgbe_set_advertise() a bit. At least, FreeBSD r294578 is required
to work hw.ixg0.advertise_speed sysctl correctly.

Update ixg(4) and ixv(4) up to FreeBSD r280197:
- Add support for 82599_QSFP_SF_QP and X540T1.
- Add partial support for X55x. It's required to sync with FreeBSD r282299
to support X55x.
- Bugfixes.

branches: 1.11.2;
Avoid shadowing global `min'.

Avoid shadowing global `min'.

Reduce diff against FreeBSD r280181.

Sync ixg(4) up to FreeBSD r279805 (or r280181) which include some bugfixes.
TODO:
- Merge r280182 and newer. It's required to support X55x.
- MSI/MSI-X support.

Sync ixg(4) up to FreeBSD r250108:
- Cleanup some unused counters and some unused code.
- Improve performance.
- Fix flow control - don't override user value on re-init
- Fix to make 1G optics work correctly
- Change to interrupt enabling - some bits were incorrect
for certain hardware.
- Certain stats fixes, remove a duplicate increment of
ierror, thanks to Scott Long for pointing these out.
- Fix the setting of RX which related to multicast.
- Some netmap related fixes.

Update our ixg(4) driver up to FreeBSD r238149:
- Add TSO6 support.
- The max size in dma tag is changed from 65535 to 262140 (IXGBE_TSO_SIZE).
The value is the same as other *BSDs. The change might cause a address
space shortage (ixgbe_dmamap_create() might fail) on some machines.
- Fix a lot of bugs.
- Improve performance.

Synchronize our ixg(4) driver up to FreeBSD r230775:
- Add X540 support.
- Add 100BaseTX support.
- Fix a lot of bugs.
- Improve performance.

Add 82599EN_SFP and 82599_SFP_SF_QP. Not tested.

Change macro name IXGBE_DEV_ID_82599_SFP_DELL to IXGBE_DEV_ID_82599_SFP_SF2.
Same as OpenBSD and Linux. No binary change.

branches: 1.2.2; 1.2.4;
Add dell's flavor (from uwe, in current-users@)

branches: 1.1.2; 1.1.12; 1.1.16; 1.1.26;
Add sources for ixgbe(4), a Intel 82599 10-gigabit ethernet driver
ported from FreeBSD.

Sync with FreeBSD's r326022. All of the following changes have no influence
to netbsd:
- Check ETHERCAP_VLAN_HWTAGGING in ixgbe_setup_vlan_hw_support(). This change
has no influence to netbsd because it's enabled by default and NetBSD has
no API to disable it.
- Fix for netmap module.
- Remove never defined UDP_IPV4_EX
- Add SPDX-License-Identifier

- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

Reduce diff against FreeBSD. No functional change.

branches: 1.15.8;
Update ixg(4) and ixv(4) up to FreeBSD r303890:
- Configure ixgbe phy & gbic power.
Setup phy and gbic power as per Linux 4.3.13 driver.
This fixes link not detected on X540-AT2 after booting to Linux which
turns the phy power off on detach. (FreeBSD r295093)
- Fixup DA cable detection routine. (FreeBSD r303032)
- Some minor changes

Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Update ixg(4) and ixv(4) up to FreeBSD r282299:
- Add support for X55x.
- ADD EEE support (not tested).
- Add WOL support (not tested).
- Add suspend/resume support (not testd).
- Add LPLU support (not tested).
- Add DMA Coalescing (note verified).
- Not tested well for sysctls.
- Fix ixgbe_set_advertise() a bit. At least, FreeBSD r294578 is required
to work hw.ixg0.advertise_speed sysctl correctly.

Update ixg(4) and ixv(4) up to FreeBSD r280197:
- Add support for 82599_QSFP_SF_QP and X540T1.
- Add partial support for X55x. It's required to sync with FreeBSD r282299
to support X55x.
- Bugfixes.

branches: 1.11.2;
Avoid shadowing global `min'.

Avoid shadowing global `min'.

Reduce diff against FreeBSD r280181.

Sync ixg(4) up to FreeBSD r279805 (or r280181) which include some bugfixes.
TODO:
- Merge r280182 and newer. It's required to support X55x.
- MSI/MSI-X support.

Sync ixg(4) up to FreeBSD r250108:
- Cleanup some unused counters and some unused code.
- Improve performance.
- Fix flow control - don't override user value on re-init
- Fix to make 1G optics work correctly
- Change to interrupt enabling - some bits were incorrect
for certain hardware.
- Certain stats fixes, remove a duplicate increment of
ierror, thanks to Scott Long for pointing these out.
- Fix the setting of RX which related to multicast.
- Some netmap related fixes.

Update our ixg(4) driver up to FreeBSD r238149:
- Add TSO6 support.
- The max size in dma tag is changed from 65535 to 262140 (IXGBE_TSO_SIZE).
The value is the same as other *BSDs. The change might cause a address
space shortage (ixgbe_dmamap_create() might fail) on some machines.
- Fix a lot of bugs.
- Improve performance.

Synchronize our ixg(4) driver up to FreeBSD r230775:
- Add X540 support.
- Add 100BaseTX support.
- Fix a lot of bugs.
- Improve performance.

Add 82599EN_SFP and 82599_SFP_SF_QP. Not tested.

Change macro name IXGBE_DEV_ID_82599_SFP_DELL to IXGBE_DEV_ID_82599_SFP_SF2.
Same as OpenBSD and Linux. No binary change.

branches: 1.2.2; 1.2.4;
Add dell's flavor (from uwe, in current-users@)

branches: 1.1.2; 1.1.12; 1.1.16; 1.1.26;
Add sources for ixgbe(4), a Intel 82599 10-gigabit ethernet driver
ported from FreeBSD.

- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

Reduce diff against FreeBSD. No functional change.

branches: 1.15.8;
Update ixg(4) and ixv(4) up to FreeBSD r303890:
- Configure ixgbe phy & gbic power.
Setup phy and gbic power as per Linux 4.3.13 driver.
This fixes link not detected on X540-AT2 after booting to Linux which
turns the phy power off on detach. (FreeBSD r295093)
- Fixup DA cable detection routine. (FreeBSD r303032)
- Some minor changes

Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Update ixg(4) and ixv(4) up to FreeBSD r282299:
- Add support for X55x.
- ADD EEE support (not tested).
- Add WOL support (not tested).
- Add suspend/resume support (not testd).
- Add LPLU support (not tested).
- Add DMA Coalescing (note verified).
- Not tested well for sysctls.
- Fix ixgbe_set_advertise() a bit. At least, FreeBSD r294578 is required
to work hw.ixg0.advertise_speed sysctl correctly.

Update ixg(4) and ixv(4) up to FreeBSD r280197:
- Add support for 82599_QSFP_SF_QP and X540T1.
- Add partial support for X55x. It's required to sync with FreeBSD r282299
to support X55x.
- Bugfixes.

branches: 1.11.2;
Avoid shadowing global `min'.

Avoid shadowing global `min'.

Reduce diff against FreeBSD r280181.

Sync ixg(4) up to FreeBSD r279805 (or r280181) which include some bugfixes.
TODO:
- Merge r280182 and newer. It's required to support X55x.
- MSI/MSI-X support.

Sync ixg(4) up to FreeBSD r250108:
- Cleanup some unused counters and some unused code.
- Improve performance.
- Fix flow control - don't override user value on re-init
- Fix to make 1G optics work correctly
- Change to interrupt enabling - some bits were incorrect
for certain hardware.
- Certain stats fixes, remove a duplicate increment of
ierror, thanks to Scott Long for pointing these out.
- Fix the setting of RX which related to multicast.
- Some netmap related fixes.

Update our ixg(4) driver up to FreeBSD r238149:
- Add TSO6 support.
- The max size in dma tag is changed from 65535 to 262140 (IXGBE_TSO_SIZE).
The value is the same as other *BSDs. The change might cause a address
space shortage (ixgbe_dmamap_create() might fail) on some machines.
- Fix a lot of bugs.
- Improve performance.

Synchronize our ixg(4) driver up to FreeBSD r230775:
- Add X540 support.
- Add 100BaseTX support.
- Fix a lot of bugs.
- Improve performance.

Add 82599EN_SFP and 82599_SFP_SF_QP. Not tested.

Change macro name IXGBE_DEV_ID_82599_SFP_DELL to IXGBE_DEV_ID_82599_SFP_SF2.
Same as OpenBSD and Linux. No binary change.

branches: 1.2.2; 1.2.4;
Add dell's flavor (from uwe, in current-users@)

branches: 1.1.2; 1.1.12; 1.1.16; 1.1.26;
Add sources for ixgbe(4), a Intel 82599 10-gigabit ethernet driver
ported from FreeBSD.

Reduce diff against FreeBSD. No functional change.

Update ixg(4) and ixv(4) up to FreeBSD r303890:
- Configure ixgbe phy & gbic power.
Setup phy and gbic power as per Linux 4.3.13 driver.
This fixes link not detected on X540-AT2 after booting to Linux which
turns the phy power off on detach. (FreeBSD r295093)
- Fixup DA cable detection routine. (FreeBSD r303032)
- Some minor changes

Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Update ixg(4) and ixv(4) up to FreeBSD r282299:
- Add support for X55x.
- ADD EEE support (not tested).
- Add WOL support (not tested).
- Add suspend/resume support (not testd).
- Add LPLU support (not tested).
- Add DMA Coalescing (note verified).
- Not tested well for sysctls.
- Fix ixgbe_set_advertise() a bit. At least, FreeBSD r294578 is required
to work hw.ixg0.advertise_speed sysctl correctly.

Update ixg(4) and ixv(4) up to FreeBSD r280197:
- Add support for 82599_QSFP_SF_QP and X540T1.
- Add partial support for X55x. It's required to sync with FreeBSD r282299
to support X55x.
- Bugfixes.

branches: 1.11.2;
Avoid shadowing global `min'.

Avoid shadowing global `min'.

Reduce diff against FreeBSD r280181.

Sync ixg(4) up to FreeBSD r279805 (or r280181) which include some bugfixes.
TODO:
- Merge r280182 and newer. It's required to support X55x.
- MSI/MSI-X support.

Sync ixg(4) up to FreeBSD r250108:
- Cleanup some unused counters and some unused code.
- Improve performance.
- Fix flow control - don't override user value on re-init
- Fix to make 1G optics work correctly
- Change to interrupt enabling - some bits were incorrect
for certain hardware.
- Certain stats fixes, remove a duplicate increment of
ierror, thanks to Scott Long for pointing these out.
- Fix the setting of RX which related to multicast.
- Some netmap related fixes.

Update our ixg(4) driver up to FreeBSD r238149:
- Add TSO6 support.
- The max size in dma tag is changed from 65535 to 262140 (IXGBE_TSO_SIZE).
The value is the same as other *BSDs. The change might cause a address
space shortage (ixgbe_dmamap_create() might fail) on some machines.
- Fix a lot of bugs.
- Improve performance.

Synchronize our ixg(4) driver up to FreeBSD r230775:
- Add X540 support.
- Add 100BaseTX support.
- Fix a lot of bugs.
- Improve performance.

Add 82599EN_SFP and 82599_SFP_SF_QP. Not tested.

Change macro name IXGBE_DEV_ID_82599_SFP_DELL to IXGBE_DEV_ID_82599_SFP_SF2.
Same as OpenBSD and Linux. No binary change.

branches: 1.2.2; 1.2.4;
Add dell's flavor (from uwe, in current-users@)

branches: 1.1.2; 1.1.12; 1.1.16; 1.1.26;
Add sources for ixgbe(4), a Intel 82599 10-gigabit ethernet driver
ported from FreeBSD.

Update ixg(4) and ixv(4) up to FreeBSD r303890:
- Configure ixgbe phy & gbic power.
Setup phy and gbic power as per Linux 4.3.13 driver.
This fixes link not detected on X540-AT2 after booting to Linux which
turns the phy power off on detach. (FreeBSD r295093)
- Fixup DA cable detection routine. (FreeBSD r303032)
- Some minor changes

Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Update ixg(4) and ixv(4) up to FreeBSD r282299:
- Add support for X55x.
- ADD EEE support (not tested).
- Add WOL support (not tested).
- Add suspend/resume support (not testd).
- Add LPLU support (not tested).
- Add DMA Coalescing (note verified).
- Not tested well for sysctls.
- Fix ixgbe_set_advertise() a bit. At least, FreeBSD r294578 is required
to work hw.ixg0.advertise_speed sysctl correctly.

Update ixg(4) and ixv(4) up to FreeBSD r280197:
- Add support for 82599_QSFP_SF_QP and X540T1.
- Add partial support for X55x. It's required to sync with FreeBSD r282299
to support X55x.
- Bugfixes.

Avoid shadowing global `min'.

Avoid shadowing global `min'.

Reduce diff against FreeBSD r280181.

Sync ixg(4) up to FreeBSD r279805 (or r280181) which include some bugfixes.
TODO:
- Merge r280182 and newer. It's required to support X55x.
- MSI/MSI-X support.

Sync ixg(4) up to FreeBSD r250108:
- Cleanup some unused counters and some unused code.
- Improve performance.
- Fix flow control - don't override user value on re-init
- Fix to make 1G optics work correctly
- Change to interrupt enabling - some bits were incorrect
for certain hardware.
- Certain stats fixes, remove a duplicate increment of
ierror, thanks to Scott Long for pointing these out.
- Fix the setting of RX which related to multicast.
- Some netmap related fixes.

Update our ixg(4) driver up to FreeBSD r238149:
- Add TSO6 support.
- The max size in dma tag is changed from 65535 to 262140 (IXGBE_TSO_SIZE).
The value is the same as other *BSDs. The change might cause a address
space shortage (ixgbe_dmamap_create() might fail) on some machines.
- Fix a lot of bugs.
- Improve performance.

Synchronize our ixg(4) driver up to FreeBSD r230775:
- Add X540 support.
- Add 100BaseTX support.
- Fix a lot of bugs.
- Improve performance.

Add 82599EN_SFP and 82599_SFP_SF_QP. Not tested.

Change macro name IXGBE_DEV_ID_82599_SFP_DELL to IXGBE_DEV_ID_82599_SFP_SF2.
Same as OpenBSD and Linux. No binary change.

branches: 1.2.2; 1.2.4;
Add dell's flavor (from uwe, in current-users@)

branches: 1.1.2; 1.1.12; 1.1.16; 1.1.26;
Add sources for ixgbe(4), a Intel 82599 10-gigabit ethernet driver
ported from FreeBSD.