MFC r339366
Add support for Error Recovery

Submitted by:Vaishali.Kulkarni@cavium.com

MFC r338734

Fixed isses:
State check before enqueuing transmit task in bxe_link_attn() routine.
State check before invoking bxe_nic_unload in bxe_shutdown().

Submitted by:Vaishali.Kulkarni@cavium.com

MFC r336438

Fixes for the following issues:
1. Fix taskqueues drain/free to fix panic seen when interface is being
bought down and in parallel asynchronous link events happening.

2. Fix bxe_ifmedia_status()

Submitted by: Vaishali.Kulkarni@cavium.com and Anand.Khoje@cavium.com

MFC r333004
Fix Issue with adding MultiCast Addresses. When multicast addresses are
added/deleted, the delete the multicast addresses previously programmed
in HW and reprogram the new set of multicast addresses.

Submitted by: Vaishali.Kulkarni@cavium.com

MFC r334948:

Fix build of bxe with base gcc on i386

Casting from rman_res_t to a pointer results in "cast to pointer from
integer of different size" warnings with base gcc on i386, so print
these without casting. The kva field of struct bxe_bar is of type
vm_offset_t, which can be 32 or 64 bit, so cast it to uintmax_t before
printing.

Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D15733

Revert r330897:

This was intended to be a non-functional change. It wasn't. The commit
message was thus wrong. In addition it broke arm, and merged crypto
related code.

Revert with prejudice.

This revert skips files touched in r316370 since that commit was since
MFCed. This revert also skips files that require $FreeBSD$ property
changes.

Thank you to those who helped me get out of this mess including but not
limited to gonzo, kevans, rgrimes.

Requested by: gjb (re)

Partial merge of the SPDX changes

These changes are incomplete but are making it difficult
to determine what other changes can/should be merged.

No objections from: pfg

MFC r321203:
Add HPE FlexFabric 10Gb 4-port 536FLR-T device id to the bxe(4) driver.

MFC r308343

r266979 missed a call to enable capabilities of the hw leading to an
inability to enable features of the device.

PR: 213845

MFC r314365
1. state checks in bxe_tx_mq_start_locked() and bxe_tx_mq_start() to
sync threads during interface down or detach.
2. add sysctl to set pause frame parameters
3. increase max segs for TSO packets to BXE_TSO_MAX_SEGMENTS (32)
4. add debug messages for PHY
5. HW LRO support restricted to FreeBSD versions 8.x and above.

Submitted by: Vaishali.Kulkarni@cavium.com

MFC r313771

bxe: enable usage with NetXtreme II BCM57840 2x20GbE chip

Sponsored by: Citrix Systems R&D

MFC r307578
1. Use taskqueue_create() instead of taskqueue_create_fast() for both
fastpath and slowpath taskqueues.
2. Service all transmits in taskqueue threads.
3. additional stats counters for keeping track of
- bd availability
- tx buf ring not emptied in the fp task queue.
These are drained via timeout taskqueue.
- tx attempts during link down.

MFC r303891, r303892:
sys: replace comma with semicolon when pertinent.

Uses of commas instead of a semicolons can easily go undetected. The comma
can serve as a statement separator but this shouldn't be abused when
statements are meant to be standalone.

MFC r303836

Don't enqueue NULL on a drbr

In one corner case in the bxe TX path, a NULL mbuf could be enqueued onto
a drbr queue. This could case a KASSERT to fire with INVARIANTS enabled,
or the processing of packets from the queue to be prematurely ended later
on.

Submitted by: Matt Joras (matt.joras AT isilon.com)
Reviewed by: davidcs
Sponsored by: EMC / Isilon Storage Division
Differential Revision: https://reviews.freebsd.org/D7041