cxgbe/iw_cxgbe: Fail early in some callbacks when the RNIC is stopped.

Stop allocating new resources when the RNIC is stopped but continue to
allow previously allocated resources to be freed. Note

cxgbe/iw_cxgbe: Fail early in some callbacks when the RNIC is stopped.

Stop allocating new resources when the RNIC is stopped but continue to
allow previously allocated resources to be freed. Note that t4_tom's
uld_stop tears down all TOE connections, including those being used for
iWARP, and that triggers the cleanup of iWARP resources.

Fail post_send/post_recv early too to avoid the SQ doorbell.

MFC after: 1 week
Sponsored by: Chelsio Communications

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cxgbe/iw_cxgbe: Replace the fatal error flag with a stopped flag.

Now that suspend/resume is supported by the base driver, a fatal error
isn't the only reason that the RNIC can stop abruptly. Also,

cxgbe/iw_cxgbe: Replace the fatal error flag with a stopped flag.

Now that suspend/resume is supported by the base driver, a fatal error
isn't the only reason that the RNIC can stop abruptly. Also, this state
is no longer permanent as it's possible to resume operations after a
stop. Rename the flag and associated routines to match the new state of
affairs.

MFC after: 1 week
Sponsored by: Chelsio Communications

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sys: Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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cxgbe: Various whitespace fixes.

Mostly trailing whitespace and spaces before tabs.

Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D37350

ibcore: Kernel space update based on Linux 5.7-rc1.

Overview:

This is the first stage of a RDMA stack upgrade introducing kernel
changes only based on Linux 5.7-rc1.

This patch is based on about f

ibcore: Kernel space update based on Linux 5.7-rc1.

Overview:

This is the first stage of a RDMA stack upgrade introducing kernel
changes only based on Linux 5.7-rc1.

This patch is based on about four main areas of work:
- Update of the IB uobjects system:
- The memory holding so-called AH, CQ, PD, SRQ and UCONTEXT objects
is now managed by ibcore. This also require some changes in the
kernel verbs API. The updated verbs changes are typically about
initialize and deinitialize objects, and remove allocation and
free of memory.

- Update of the uverbs IOCTL framework:
- The parsing and handling of user-space commands has been
completely refactored to integrate with the updated IB uobjects
system.

- Various changes and updates to the generic uverbs interfaces in
device drivers including the new uAPI surface.

- The mlx5_ib_devx.c in mlx5ib and related mlx5 core changes.

Dependencies:

- The mlx4ib driver code has been updated with the minimum changes
needed.

- The mlx5ib driver code has been updated with the minimum changes
needed including DV support.

Compatibility:

- All user-space facing APIs are backwards compatible after this
change.

- All kernel-space facing RDMA APIs are backwards compatible after
this change, with exception of ib_create_ah() and ib_destroy_ah()
which takes a new flag.

- The "ib_device_ops" structure exist, but only contains the driver ID
and some structure sizes.

Differences from Linux:

- Infiniband drivers must use the INIT_IB_DEVICE_OPS() macro to set
the sizes needed for allocating various IB objects, when adding
IB device instances.

Security:

- PRIV_NET_RAW is needed to use raw ethernet transmit features.
- PRIV_DRIVER is needed to use other privileged operations.

Based on upstream Linux, Torvalds (5.7-rc1):
8632e9b5645bbc2331d21d892b0d6961c1a08429

MFC after: 1 week
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D31149
Sponsored by: NVIDIA Networking

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cxgbe/iw_cxgbe: Support for 512 SGL entries in one memory registration.

Use the correct SGL limit within iw_cxgbe, firmwares >= 1.25.6.0 support
upto 512 entries per MR.

Obtained from: Chelsio Comm

cxgbe/iw_cxgbe: Support for 512 SGL entries in one memory registration.

Use the correct SGL limit within iw_cxgbe, firmwares >= 1.25.6.0 support
upto 512 entries per MR.

Obtained from: Chelsio Communications
MFC after: 1 week
Sponsored by: Chelsio Communications

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Merge ^/head r358075 through r358130.

cxgbe/iw_cxgbe: correctly enforce the max reg_mr depth.

Reported by: Andrew Zhu @ Netapp
Obtained from: Chelsio Communications
MFC after: 1 week
Sponsored by: Chelsio Communications

cxgbe/iw_cxgbe: Do not allow memory registrations with page size greater
than 128MB, which is the maximum supported by the hardware in RDMA mode.

Obtained from: Chelsio Communications
MFC after: 3 d

cxgbe/iw_cxgbe: Do not allow memory registrations with page size greater
than 128MB, which is the maximum supported by the hardware in RDMA mode.

Obtained from: Chelsio Communications
MFC after: 3 days
Sponsored by: Chelsio Communications

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Merge ^/head r343320 through r343570.

cxgbe/iw_cxgbe: Fix an address calculation in the memory registration code that
was added in r342266.

Submitted by: Krishnamraju Eraparaju @ Chelsio
Sponsored by: Chelsio Communications

cxgbe/iw_cxgbe: Use DSGLs to write to card's memory when appropriate.

Submitted by: Krishnamraju Eraparaju @ Chelsio
Sponsored by: Chelsio Communications

Merge ^/head r337646 through r338014.

cxgbe(4): Move all control queues to the adapter.

There used to be one control queue per adapter (the mgmtq) that was
initialized during adapter init and one per port that was initialized
later duri

cxgbe(4): Move all control queues to the adapter.

There used to be one control queue per adapter (the mgmtq) that was
initialized during adapter init and one per port that was initialized
later during port init. This change moves all the control queues (one
per port/channel) to the adapter so that they are initialized during
adapter init and are available before any port is up. This allows the
driver to issue ctrlq work requests over any channel without having to
bring up any port.

MFH: 2 weeks
Sponsored by: Chelsio Communications

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sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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RoCE/infiniband upgrade to Linux v4.9 for kernel and userspace.

This commit merges projects/bsd_rdma_4_9 to head.

List of kernel sources used:
============================

1) kernel sources were c

RoCE/infiniband upgrade to Linux v4.9 for kernel and userspace.

This commit merges projects/bsd_rdma_4_9 to head.

List of kernel sources used:
============================

1) kernel sources were cloned from git://github.com/torvalds/linux.git
Top commit 69973b830859bc6529a7a0468ba0d80ee5117826 - tag: v4.9, linux-4.9

2) krping was cloned from https://github.com/larrystevenwise/krping
Top commit 292a2f1abf0348285e678a82264740d52e4dcfe4

List of userspace sources used:
===============================

1) rdma-core was cloned from https://github.com/linux-rdma/rdma-core.git
Top commit d65138ef93af30b3ea249f3a84aa6a24ba7f8a75

2) OpenSM was cloned from git://git.openfabrics.org/~halr/opensm.git
Top commit 85f841cf209f791c89a075048a907020e924528d

3) libibmad was cloned from git://git.openfabrics.org/~iraweiny/libibmad.git
Tag 1.3.13 with some additional patches from Mellanox.

4) infiniband-diags was cloned from git://git.openfabrics.org/~iraweiny/infiniband-diags.git
Tag 1.6.7 with some additional patches from Mellanox.

NOTES:
======

1) The mthca driver has been removed in kernel and in userspace.
2) All GPLv2 only sources have been removed and where applicable
rewritten from scratch under a BSD license.
3) List of fully supported drivers in userspace and kernel:
a) iw_cxgbe (Chelsio)
b) mlx4ib (Mellanox)
c) mlx5ib (Mellanox)
4) WITH_OFED=YES is still required by make in order to build
OFED userspace and kernel code.
5) Full support has been added for routable RoCE, RoCE v2.

Sponsored by: Mellanox Technologies

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Update the iw_cxgbe bits in the projects branch.

Submitted by: Krishnamraju Eraparaju @ Chelsio
Sponsored by: Chelsio Communications

cxgbe/iw_cxgbe: Remove another bad cast. This should have been
included in r316571.

MFC after: 3 days
Sponsored by: Chelsio Communications

cxgbe/iw_cxgbe: Replace a magic constant with something more readable
(and accurate).

T4 and later have an extra bit for page shift so the maximum page size
is 8TB (shift of 12 + 31) instead of 128M

cxgbe/iw_cxgbe: Replace a magic constant with something more readable
(and accurate).

T4 and later have an extra bit for page shift so the maximum page size
is 8TB (shift of 12 + 31) instead of 128MB (12 + 15). This saves space
in the chip's PBL (physical buffer list) when registering very large
memory regions.

MFC after: 3 days
Sponsored by: Chelsio Communications

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cxgbe/iw_cxgbe: Remove bad cast that resulted in incorrect length for
memory regions larger than 4GB.

MFC after: 3 days
Sponsored by: Chelsio Communications

cxgbe/iw_cxgbe: T6 has no limit on the amount of memory that can be
registered in one ib_reg_phys_mr.

Merge ^/head r314482 through r314522.

cxgbe/iw_cxgbe: Do not check the size of the memory region being
registered. T4/5/6 have no internal limit on this size. This is
probably a copy paste from the T3 iw_cxgb driver.

MFC after: 3 days

cxgbe/iw_cxgbe: Do not check the size of the memory region being
registered. T4/5/6 have no internal limit on this size. This is
probably a copy paste from the T3 iw_cxgb driver.

MFC after: 3 days
Sponsored by: Chelsio Communications

show more ...

Merge ^/head r314129 through r314177.