MFC r341297

sfxge(4): fix out of bounds read when dereferencing sdup

Introduce and use macro to make sure that MCDI buffers allocated
on stack are rounded up properly.

Submitted by: Gautam Dawar <gdawar at solarflare.com>
Sponsored by: Solarflare Communications, Inc.
Differential Revision: https://reviews.freebsd.org/D18259

MFC r340767

sfxge(4): limit max TXQ size on Medford to 2048

Queues with 4096 descriptors are not supported as the top bit is used
for vfifo stuffing.

Submitted by: Mark Spender <mspender at solarflare.com>
Sponsored by: Solarflare Communications, Inc.
Differential Revision: https://reviews.freebsd.org/D8948

MFC r311640

sfxge(4): allow DMA descs to cross 4k boundary on EF10

Siena has limitation on maximum byte count and 4k boundary crosssing
(which is stricter than maximum byte count).
EF10 has limitation on maximum byte count only.

Sponsored by: Solarflare Communications, Inc.

MFC r310715

sfxge(4): fix GET_RXDP_CONFIG usage for multi-PF on Medford

On Medford, using MC_CMD_GET_RXDP_CONFIG to query the RX end
padding setting is in the ADMIN group, and so fails for
unprivileged functions. In that case, assume the largest size
supported by Medford hardware (256bytes) to prevent overrun.

Submitted by: Andy Moreton <amoreton at solarflare.com>
Sponsored by: Solarflare Communications, Inc.

MFC r310694

sfxge(4): cleanup: add missing spaces

Found by DPDK checkpatch.sh

Sponsored by: Solarflare Communications, Inc.

MFC r310687

sfxge(4): cleanup: use TAB to indent

Found by DPDK checkpatch.sh

Sponsored by: Solarflare Communications, Inc.

MFC r301237

sfxge(4): support EVQ timer workaround via MCDI

Submitted by: Andy Moreton <amoreton at solarflare.com>
Sponsored by: Solarflare Communications, Inc.
Differential Revision: https://reviews.freebsd.org/6675

MFC r300607

sfxge(4): cleanup: update copyright to 2016

Sponsored by: Solarflare Communications, Inc.

MFC r300606

sfxge(4): provide option to disable not a local MAC address check

Option EFSYS_OPT_ALLOW_UNCONFIGURED_NIC disables check that the adapter
MAC address is not a local address (beginning 02).

Submitted by: Laurence Evans <levans at solarflare.com>
Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.

MFC r300009

sfxge(4): fix Medford timer quantum calculation in common code

The event/timer block used sysclk in Huntington, but has been
moved to the dpcpu clock domain for Medford. Fix the computed
timer quantum to use the right clock.

Submitted by: Andy Moreton <amoreton at solarflare.com>
Sponsored by: Solarflare Communications, Inc.

MFC r299904

sfxge(4): improve PCIe link speed and width check

Perform a more accurate check of whether the PCIe bandwidth is
sufficient for the current/supported port modes.

Give a different warning if there is sufficient bandwidth to achieve
line rate, but the link is not fast enough for optimal latency.

Submitted by: Mark Spender <mspender at solarflare.com>
Sponsored by: Solarflare Communications, Inc.

MFC r299727

sfxge(4): cleanup: remove unused variable flags

Sponsored by: Solarflare Communications, Inc.

MFC r299344

sfxge(4): cleanup: remove unneeded include files

Submitted by: Andy Moreton <amoreton at solarflare.com>
Sponsored by: Solarflare Communications, Inc.

MFC r294094

sfxge: check the RX DMA end padding configuration on Medford

Submitted by: Mark Spender <mspender at solarflare.com>
Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.

MFC r294091

sfxge: rename common hunt PHY methods to ef10 and use for Medford

Leaving BIST methods for now as, though the Medford bootrom now has lots
of BIST support, production firmware doesn't appear to have been updated
yet.

Submitted by: Mark Spender <mspender at solarflare.com>
Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.

MFC r294079

sfxge: Medford still needs fallback for no privilege mask

Submitted by: Mark Spender <mspender at solarflare.com>
Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.

MFC r294078

sfxge: medford stores a single global copy of VPD

Not per PF copies as on Huntington.

Submitted by: Mark Spender <mspender at solarflare.com>
Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.

MFC r294075

sfxge: rename hunt_link_state_t to ef10_link_state_t

Submitted by: Mark Spender <mspender at solarflare.com>
Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.

MFC r293887

sfxge: add Medford NIC methods

Submitted by: Mark Spender <mspender at solarflare.com>
Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.

MFC r293814

sfxge: cleanup: simplify EFX header includes

Submitted by: Andy Moreton <amoreton at solarflare.com>
Sponsored by: Solarflare Communications, Inc.

MFC r293734

sfxge: add medford_impl.h, medford_nic.c, ef10_impl.h

Creating some files together to do the build system changes in one go.

Submitted by: Mark Spender <mspender at solarflare.com>
Sponsored by: Solarflare Communications, Inc.