MFC r361279:

bnxt: isc_nrxd_max and isc_ntxd_max must be powers of two

MFC r358630:

bnxt(4): Fix ioctls when user addresses are inaccessable.

Check copyin's error code (differ adding copyout checks at this time).

Don't directly access user memory in the switch statement.

Since bnxt_ioctl_data isn't all that big, use a stack allocation.

Reviewed by: jhb
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D23933

MFC: r308728, r314369, r315243, r316026, r316581, r316616, r318359,
r319922, r319990, r321481, r323232-323233, r323321, r323874, r323955,
r324323, r324964, r325169, r325488, r325620, r326985, r326999-327001,
r327003, r329335

Update bnxt to latest -CURRENT.

Approved by: re (gjb@)
Differential Revision: https://reviews.freebsd.org/D15143

Merge iflib changes to 11-STABLE

MFC r300147, r300153, r300154, r300215, r301563, r301567,
r302372, r307560, r307562, r307563, r307568, r308792, r311039,
r311837, r312755, r312903, r312905, r312924, r313248, r315217,
r315245, r315288, r316278, r316281, r316502, r316596, r317756,
r319917, r319921, r319984, r319989, r320059, r320609, r320611,
r321253, r321629, r321630, r322337, r322338, r322823, r323077,
r323825, r323876, r323879, r323887, r323941, r323942, r323943,
r323944, r323954, r324038, r324318, r324937, r325166, r325167,
r325168, r325201, r325241, r325245, r325487, r325494, r325901,
r326033, r326369, r326370, r326432, r326577, r326578, r326702,
r326706, r326775, r327013, r327017, r327052, r327072, r327098,
r327242, r327244, r327247, r329651, r329742, r330289, r330715,
r330721, r332419, r332422, r332729

Reviewed by: sbruno
Approved by: re (delphij@)
Sponsored by: Limelight Networks
Differential Revision: https://reviews.freebsd.org/D15142

MFC r317798:

bnxt: Add support for new Broadcom 100Gb adapter BCM57454

MFC r308696, r308729, r308787, r308813, r309028, r309073, r309078:

r308696:
New driver for Broadcom NetXtreme-C and NetXtreme-E devices.

r308729:
Add bnxt(4) to the hardware notes.

r308787:
Add missing newline in error mesage

r308813:
Check link status after init

r309028:
Add missing break to switch statement

r309073:
Fix version string

r309078:
Add new device IDs

Approved by: sbruno
Relnotes: yes
Sponsored by: Broadcom Limited