MFC r362271:
Allow multicast packets to be received in promiscious mode, in mlx4en(4).

Make sure we disable the multicast filter in promiscious mode aswell as when
the all multicast flag is set.

Found by: Tycho Nightingale <tychon@freebsd.org>
Sponsored by: Mellanox Technologies

MFC r362201:

Avoid trying to toggle TSO twice

Remove TSO from the toggle mask when automatically disabled by TXCKSUM* in
various NIC drivers.

Reviewed by: hselasky, np, gallatin, jpaetzel
Approved by: mav (mentor)
Sponsored by: iXsystems, Inc.
Differential Revision: https://reviews.freebsd.org/D25120

MFC r344920:
Teardown ifnet after stopping port in the mlx4en(4) driver.

mlx4_en_stop_port() calls mlx4_en_put_qp() which can refer the link level
address of the network interface, which in turn will be freed by the
network interface detach function. Make sure the port is stopped
before detaching the network interface.

Sponsored by: Mellanox Technologies

MFC r344919:
Don't hold state lock while detaching network device instance in mlx4en(4).

It can happen during shutdown that the lock will recurse when the mlx4en(4)
instance is part of a lagg interface. Call ether_ifdetach() unlocked.

Backtrace:
panic(): _sx_xlock_hard: recursed on non-recursive sx &mdev->state_lock
_sx_xlock_hard()
_sx_xlock()
mlx4_en_ioctl()
if_setlladdr()
lagg_port_destroy()
lagg_port_ifdetach()
if_detach()
mlx4_en_destroy_netdev()
mlx4_en_remove()
mlx4_remove_device()
mlx4_unregister_device()
mlx4_unload_one()
mlx4_shutdown()
linux_pci_shutdown()
bus_generic_shutdown()

Sponsored by: Mellanox Technologies

MFC r341549:
mlx4en: Add support for receiving all data using one or more MCLBYTES sized mbufs.
Also when the MTU is greater than MCLBYTES.

Sponsored by: Mellanox Technologies

MFC r341547:
mlx4en: Remove the DRBR and associated logic in the transmit path.

The hardware queues are deep enough currently and using the DRBR and associated
callbacks only leads to more task switching in the TX path. The is also a race
setting the queue_state which can lead to hung TX rings.

Sponsored by: Mellanox Technologies

MFC r339235:
Add missing steering rules for virtual function, VF, in mlx4en(4) driver.

When acting as a VF it is required to add steering rules for all unicast
addresses. Even if promiscious mode is selected. Else incoming data packets
will be dropped.

Sponsored by: Mellanox Technologies

MFC r331797:

Use an accessor function to access ifr_data.

This fixes 32-bit compat (no ioctl command defintions are required
as struct ifreq is the same size).

Reviewed by: kib
Obtained from: CheriBSD
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D14900

MFC r306486-r325841:
Update the mlx4, mlx4ib(4) and mlx4en(4) drivers to match FreeBSD-head
prior to the Linux 4.9 RoCE/infiniband upgrade.

Sponsored by: Mellanox Technologies

MFC r306486:
Move the ConnectX-3 and ConnectX-2 driver from sys/ofed into sys/dev/mlx4
like other PCI network drivers. The sys/ofed directory is now mainly
reserved for generic infiniband code, with exception of the mthca driver.

- Add new manual page, mlx4en(4), describing how to configure and load
mlx4en.

- All relevant driver C-files are now prefixed mlx4, mlx4_en and
mlx4_ib respectivly to avoid object filename collisions when compiling
the kernel. This also fixes an issue with proper dependency file
generation for the C-files in question.

- Device mlxen is now device mlx4en and depends on device mlx4, see
mlx4en(4). Only the network device name remains unchanged.

- The mlx4 and mlx4en modules are now built by default on i386 and
amd64 targets. Only building the mlx4ib module depends on
WITH_OFED=YES .

Sponsored by: Mellanox Technologies

MFC r310425:
mlx: avoid use of __DATE__ to make build reproducible

Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D8886

MFC r310488:
mlx(4): remove date from log message

Further to r310425, go one step further and just remove the date.

Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D8888

MFC r324200:
Implement SIOCGIFRSS{KEY,HASH} for the mlx4en(4) driver.

Differential Revision: https://reviews.freebsd.org/D12176
Sponsored by: Mellanox Technologies

MFC r324201:
Setup mbuf hash type properly when receiving IP packets in the mlx4en(4) driver.

Submitted by: sephe@
Differential Revision: https://reviews.freebsd.org/D12229
Sponsored by: Mellanox Technologies

MFC r324621:
mlx4: use enum constants instead of const vars for case exprs

Follow up from r324201 to fix compilation with gcc, which complains
about non-ICE case expressions.

Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D12675

MFC r325841:
Update the mlx4 core and mlx4en(4) modules towards Linux v4.9.

Background:
The coming ibcore update forces an update of mlx4ib(4) which in turn requires
an updated mlx4 core module. This also affects the mlx4en(4) module because
commonly used APIs are updated. This commit is a middle step updating the
mlx4 modules towards the new ibcore.

This change contains no major new features.

Changes in mlx4:
a) Improved error handling when mlx4 PCI devices are
detached inside VMs.
b) Major update of codebase towards Linux 4.9.

Changes in mlx4ib(4):
a) Minimal changes needed in order to compile using the
updated mlx4 core APIs.

Changes in mlx4en(4):
a) Update flow steering code in mlx4en to use new APIs for
registering MAC addresses and IP addresses.
b) Update all statistics counters to be 64-bit.
c) Minimal changes needed in order to compile using the
updated mlx4 core APIs.

Sponsored by: Mellanox Technologies