RDMA/core: Remove unused ib_ud_header_unpack

ib_ud_header_unpack() is unused, and I can't see any sign of it
ever having been used in git. The only reference I can find
is from December 2004 BKrev:

RDMA/core: Remove unused ib_ud_header_unpack

ib_ud_header_unpack() is unused, and I can't see any sign of it
ever having been used in git. The only reference I can find
is from December 2004 BKrev: 41d30034XNbBUl0XnyC6ig9V61Nf-A when
it looks like it was added.

Remove it.

Signed-off-by: Dr. David Alan Gilbert <[email protected]>
Link: https://patch.msgid.link/[email protected]
Reviewed-by: Kalesh AP <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>

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RDMA: Extend RDMA kernel verbs ABI to support flush

This commit extends the RDMA kernel verbs ABI to support the flush
operation defined in IBA A19.4.1. These changes are
backward compatible with th

RDMA: Extend RDMA kernel verbs ABI to support flush

This commit extends the RDMA kernel verbs ABI to support the flush
operation defined in IBA A19.4.1. These changes are
backward compatible with the existing RDMA kernel verbs ABI.

It makes device/HCA support new FLUSH attributes/capabilities, and it
also makes memory region support new FLUSH access flags.

Users can use ibv_reg_mr(3) to register flush access flags. Only the
access flags also supported by device's capabilities can be registered
successfully.

Once registered successfully, it means the MR is flushable. Similarly,
A flushable MR should also have one or both of GLOBAL_VISIBILITY and
PERSISTENT attributes/capabilities like device/HCA.

Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Zhu Yanjun <[email protected]>
Signed-off-by: Li Zhijian <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

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RDMA: Extend RDMA kernel ABI to support atomic write

1) Define new atomic write request/completion in kernel.
2) Define new atomic write capability in kernel.
3) Define new atomic write opcode for R

RDMA: Extend RDMA kernel ABI to support atomic write

1) Define new atomic write request/completion in kernel.
2) Define new atomic write capability in kernel.
3) Define new atomic write opcode for RC service in packet.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Xiao Yang <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

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RDMA/include: Replace license text with SPDX tags

The header files in RDMA subsystem are dual licensed and can be
described by simple SPDX tag, so replace all of them at once
together with making th

RDMA/include: Replace license text with SPDX tags

The header files in RDMA subsystem are dual licensed and can be
described by simple SPDX tag, so replace all of them at once
together with making them use the same coding style for header
guard defines.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

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IB/core: Fix calculation of maximum RoCE MTU

The original code only took into consideration the largest header
possible after the IB_BTH_BYTES. This was incorrect, as the largest
possible header si

IB/core: Fix calculation of maximum RoCE MTU

The original code only took into consideration the largest header
possible after the IB_BTH_BYTES. This was incorrect, as the largest
possible header size is the largest possible combination of headers we
might run into. The new code accounts for all possible headers in the
largest possible combination and subtracts that from the MTU to make
sure that all packets will fit on the wire.

Link: https://www.spinics.net/lists/linux-rdma/msg54558.html
Fixes: 3c86aa70bf67 ("RDMA/cm: Add RDMA CM support for IBoE devices")
Signed-off-by: Parav Pandit <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Reported-by: Roland Dreier <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>

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IB/hfi1: Add transmit fault injection feature

Add ability to fault packets on transmit by opcode.
Dropping by packet can be achieved by setting the mask to 0.

In order to drop non-verbs traffic we

IB/hfi1: Add transmit fault injection feature

Add ability to fault packets on transmit by opcode.
Dropping by packet can be achieved by setting the mask to 0.

In order to drop non-verbs traffic we set PbcInsertHrc
to NONE (0x2). The packet will still be delivered to
the receiving node but a KHdrHCRCErr (KDETH packet
with a bad HCRC) will be triggered and the packet will
not be delivered to the correct context.

In order to drop regular verbs traffic we set the
PbcTestEbp flag. The packet will still be delivered
to the receiving node but a 'late ebp error' will
be triggered and will be dropped.

A global toggle (/sys/kernel/debug/hfi1/hfi1_X/fault_suppress_err)
has been added to suppress the error messages on the receive
node when a packet was faulted on the sending node.

Reviewed-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Mike Marciniszyn <[email protected]>
Signed-off-by: Don Hiatt <[email protected]>
Signed-off-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>

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ib_pack.h: Add opcode definition for send with invalidate

The opcode for "SEND Last with Invalidate" and "SEND Only with
Invalidate" have been defined for RC in IBA Specification Vol 1
since Release

ib_pack.h: Add opcode definition for send with invalidate

The opcode for "SEND Last with Invalidate" and "SEND Only with
Invalidate" have been defined for RC in IBA Specification Vol 1
since Release 1.2. Add the definition to the header file in
preparation of supporting these opcodes in rdmavt based drivers.

Reviewed-by: Mike Marciniszyn <[email protected]>
Signed-off-by: Jianxin Xiong <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>

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IB/mlx4: Enable send of RoCE QP1 packets with IP/UDP headers

RoCEv2 packets are sent over IP/UDP protocols.
The mlx4 driver uses a type of RAW QP to send packets for QP1 and
therefore needs to build

IB/mlx4: Enable send of RoCE QP1 packets with IP/UDP headers

RoCEv2 packets are sent over IP/UDP protocols.
The mlx4 driver uses a type of RAW QP to send packets for QP1 and
therefore needs to build the network headers below BTH in software.

This patch adds option to build QP1 packets with IP and UDP headers if
RoCEv2 is requested.

Signed-off-by: Moni Shoua <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>

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IB/core: Initialize UD header structure with IP and UDP headers

ib_ud_header_init() is used to format InfiniBand headers
in a buffer up to (but not with) BTH. For RoCE UDP ENCAP it is
required that

IB/core: Initialize UD header structure with IP and UDP headers

ib_ud_header_init() is used to format InfiniBand headers
in a buffer up to (but not with) BTH. For RoCE UDP ENCAP it is
required that this function would be able to build also IP and UDP
headers.

Signed-off-by: Moni Shoua <[email protected]>
Signed-off-by: Matan Barak <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>

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ib_pack.h: Fix commentary IBA reference for CNP in IB opcode enum

IBA spec is now 1.3 not 3.1 and vol 1 should be mentioned
as there is also vol 2.

Signed-off-by: Hal Rosenstock <[email protected]>

ib_pack.h: Fix commentary IBA reference for CNP in IB opcode enum

IBA spec is now 1.3 not 3.1 and vol 1 should be mentioned
as there is also vol 2.

Signed-off-by: Hal Rosenstock <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>

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IB/core: Add core header changes needed for OPA

This patch adds the value of the CNP opcode to the existing list of enumerated
opcodes in ib_pack.h

Add common OPA header definitions for driver
buil

IB/core: Add core header changes needed for OPA

This patch adds the value of the CNP opcode to the existing list of enumerated
opcodes in ib_pack.h

Add common OPA header definitions for driver
build:
- opa_port_info.h
- opa_smi.h
- hfi1_user.h

Additionally, ib_mad.h, has additional definitions
that are common to ib_drivers including:
- trap support
- cca support

The qib driver has the duplication removed in favor
those in ib_mad.h

Reviewed-by: Mike Marciniszyn <[email protected]>
Reviewed-by: John, Jubin <[email protected]>
Signed-off-by: Ira Weiny <[email protected]>
Signed-off-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>

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IB/core: Ethernet L2 attributes in verbs/cm structures

This patch add the support for Ethernet L2 attributes in the
verbs/cm/cma structures.

When dealing with L2 Ethernet, we should use smac, dmac,

IB/core: Ethernet L2 attributes in verbs/cm structures

This patch add the support for Ethernet L2 attributes in the
verbs/cm/cma structures.

When dealing with L2 Ethernet, we should use smac, dmac, vlan ID and priority
in a similar manner that the IB L2 (and the L4 PKEY) attributes are used.

Thus, those attributes were added to the following structures:

* ib_ah_attr - added dmac
* ib_qp_attr - added smac and vlan_id, (sl remains vlan priority)
* ib_wc - added smac, vlan_id
* ib_sa_path_rec - added smac, dmac, vlan_id
* cm_av - added smac and vlan_id

For the path record structure, extra care was taken to avoid the new
fields when packing it into wire format, so we don't break the IB CM
and SA wire protocol.

On the active side, the CM fills. its internal structures from the
path provided by the ULP. We add there taking the ETH L2 attributes
and placing them into the CM Address Handle (struct cm_av).

On the passive side, the CM fills its internal structures from the WC
associated with the REQ message. We add there taking the ETH L2
attributes from the WC.

When the HW driver provides the required ETH L2 attributes in the WC,
they set the IB_WC_WITH_SMAC and IB_WC_WITH_VLAN flags. The IB core
code checks for the presence of these flags, and in their absence does
address resolution from the ib_init_ah_from_wc() helper function.

ib_modify_qp_is_ok is also updated to consider the link layer. Some
parameters are mandatory for Ethernet link layer, while they are
irrelevant for IB. Vendor drivers are modified to support the new
function signature.

Signed-off-by: Matan Barak <[email protected]>
Signed-off-by: Or Gerlitz <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>

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IB/core: Add VLAN support for IBoE

Add 802.1q VLAN support to IBoE. The VLAN tag is encoded within the
GID derived from a link local address in the following way:

GID[11] GID[12] contain the VL

IB/core: Add VLAN support for IBoE

Add 802.1q VLAN support to IBoE. The VLAN tag is encoded within the
GID derived from a link local address in the following way:

GID[11] GID[12] contain the VLAN ID when the GID contains a VLAN.

The 3 bits user priority field of the packets are identical to the 3
bits of the SL.

In case of rdma_cm apps, the TOS field is used to generate the SL
field by doing a shift right of 5 bits effectively taking to 3 MS bits
of the TOS field.

Signed-off-by: Eli Cohen <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>

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IB/pack: IBoE UD packet packing support

Add support for packing IBoE packet headers.

Signed-off-by: Eli Cohen <[email protected]>

[ Clean up and fix ib_ud_header_init() a bit. - Roland ]

Signed

IB/pack: IBoE UD packet packing support

Add support for packing IBoE packet headers.

Signed-off-by: Eli Cohen <[email protected]>

[ Clean up and fix ib_ud_header_init() a bit. - Roland ]

Signed-off-by: Roland Dreier <[email protected]>

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IB/core: Fix and clean up ib_ud_header_init()

ib_ud_header_init() first clears header and then fills up the various
fields. Later on, it tests header->immediate_present, which it has
already cleare

IB/core: Fix and clean up ib_ud_header_init()

ib_ud_header_init() first clears header and then fills up the various
fields. Later on, it tests header->immediate_present, which it has
already cleared, so the condition is always false. Fix this by adding
an immediate_present parameter and setting header->immediate_present
as is done with grh_present. Also remove unused calculation of
header_len.

Signed-off-by: Eli Cohen <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>

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RDMA: Improve include file coding style

Remove subversion $Id lines and improve readability by fixing other
coding style problems pointed out by checkpatch.pl.

Signed-off-by: Dotan Barak <dotanba@g

RDMA: Improve include file coding style

Remove subversion $Id lines and improve readability by fixing other
coding style problems pointed out by checkpatch.pl.

Signed-off-by: Dotan Barak <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>

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[PATCH] IB: move include files to include/rdma

Move the InfiniBand headers from drivers/infiniband/include to include/rdma.
This allows InfiniBand-using code to live elsewhere, and lets us remove th

[PATCH] IB: move include files to include/rdma

Move the InfiniBand headers from drivers/infiniband/include to include/rdma.
This allows InfiniBand-using code to live elsewhere, and lets us remove the
ugly EXTRA_CFLAGS include path from the InfiniBand Makefiles.

Signed-off-by: Roland Dreier <[email protected]>

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