MFC r295822:
qlxgb: fix mismatch.

Found by: PVS Static Analysis
Reviewed by: davidcs

MFC r263710, r273377, r273378, r273423 and r273455:

- De-vnet hash sizes and hash masks.
- Fix multiple issues related to arguments passed to SYSCTL macros.

Sponsored by: Mellanox Technologies

MFC 261861
check for defrag only when bus_dmamap_load_mbuf_sg() returns EFBIG. Comment in
qla_hw_send is moot.

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Restructure the mbuf pkthdr to make it fit for upcoming capabilities and
features. The changes in particular are:

o Remove rarely used "header" pointer and replace it with a 64bit protocol/
layer specific union PH_loc for local use. Protocols can flexibly overlay
their own 8 to 64 bit fields to store information while the packet is
worked on.

o Mechanically convert IP reassembly, IGMP/MLD and ATM to use pkthdr.PH_loc
instead of pkthdr.header.

o Extend csum_flags to 64bits to allow for additional future offload
information to be carried (e.g. iSCSI, IPsec offload, and others).

o Move the RSS hash type enumerator from abusing m_flags to its own 8bit
rsstype field. Adjust accessor macros.

o Add cosqos field to store Class of Service / Quality of Service information
with the packet. It is not yet supported in any drivers but allows us to
get on par with Cisco/Juniper in routing applications (plus MPLS QoS) with
a modernized ALTQ.

o Add four 8 bit fields l[2-5]hlen to store the relative header offsets
from the start of the packet. This is important for various offload
capabilities and to relieve the drivers from having to parse the packet
and protocol headers to find out location of checksums and other
information. Header parsing in drivers is a lot of copy-paste and
unhandled corner cases which we want to avoid.

o Add another flexible 64bit union to map various additional persistent
packet information, like ether_vtag, tso_segsz and csum fields.
Depending on the csum_flags settings some fields may have different usage
making it very flexible and adaptable to future capabilities.

o Restructure the CSUM flags to better signify their outbound (down the
stack) and inbound (up the stack) use. The CSUM flags used to be a bit
chaotic and rather poorly documented leading to incorrect use in many
places. Bring clarity into their use through better naming.
Compatibility mappings are provided to preserve the API. The drivers
can be corrected one by one and MFC'd without issue.

o The size of pkthdr stays the same at 48/56bytes (32/64bit architectures).

Sponsored by: The FreeBSD Foundation

No need to set if_mtu since it automatically updated by ether_ifattach().
Use if_initbaudrate() to set baudrate.
Add IFCAP_LINKSTATE to if_capabilities.

Submitted by: David C Somayajulu <davidcs@freebsd.org>
Approved by: George Neville-Neil <gnn@freebsd.org>

1. Updated Copyright Information
2. Added Flash Read/Update Support
3. Fixed TSO Handling

Submitted by: David C Somayajulu (davidcs@freebsd.org)
Reviewed by: George Neville-Neil (gnn@freebsd.org)
Approved by: George Neville-Neil (gnn@freebsd.org)

Mechanically substitute flags from historic mbuf allocator with
malloc(9) flags in sys/dev.

Do not announce IPv6 TSO support yet. The in-tree driver does not seem
to fully handle this yet.

Reviewed by: davidcs
MFC after: 1 week

ether_ifattach() sets if_mtu to ETHERMTU, don't bother set it again

Reviewed by: yongari

Update recently added drivers to use the if_*addr_r*lock() wrapper
functions instead of using the IF_ADDR_LOCK directly. The wrapper
functions are the supported interface for device drivers.

Reviewed by: bz, philip
MFC after: 1 week

In sys/dev/qlxgb/qla_misc.c, fix a copy/paste issue. Clang complained
the variable 'val' was uninitialized when used. Instead, 'sig' should
have been printed.

Reviewed by: davidcs
MFC after: 1 week

The maximum TSO frame size should be:
maximum IP datagram size (65535 bytes) +
Ethernet header size (14 bytes) +
2 * VLAN tag size (4 bytes) [1].

[1] We need to multiply by 2 to account for the double VLAN tag
provision added in IEEE 802.1ad.

Submitted by: David Somayajulu (david.somayajulu qlogic.com)
MFC after: 4 days

Add QLogic 10 Gigabit Ethernet & CNA Adapter Driver version 1.30
for 3200 and 8200 series cards.

Submitted by: David C Somayajulu (david.somayajulu@qlogic.com),
Qlogic Corporation
MFC After: 3 days