[PATCH 00/15] nvme-rdma/nvmet-rdma: Add metadata/T10-PI support

From: Max Gurtovoy <maxg@mellanox.com>
To: linux-nvme@lists.infradead.org, kbusch@kernel.org, hch@lst.de,
	sagi@grimberg.me
Cc: vladimirk@mellanox.com, idanb@mellanox.com, israelr@mellanox.com,
	shlomin@mellanox.com, oren@mellanox.com, maxg@mellanox.com
Subject: [PATCH 00/15] nvme-rdma/nvmet-rdma: Add metadata/T10-PI support
Date: Tue,  5 Nov 2019 18:20:10 +0200	[thread overview]
Message-ID: <20191105162026.183901-1-maxg@mellanox.com> (raw)

Hello Sagi, Christoph, Keith, Jason and Co

This patchset adds metadata (T10-PI) support for NVMeoF/RDMA host side and
target side, using signature verbs API. This set starts with a few preparation
commits to the NVMe host core layer. It continues with NVMeoF/RDMA host
implementation + new bip flag patch + few preparation commits to the NVMe
target core layer. The patchset ends with NVMeoF/RDMA target implementation.

Configuration:
Host:
 - nvme connect --pi_enable --transport=rdma --traddr=10.0.1.1 --nqn=test-nvme

Target:
 - modprobe nvmet-rdma pi_enable=Y
 - echo 1 > /config/nvmet/subsystems/${NAME}/attr_pi_enable

The code was tested using Mellanox's ConnectX-4/ConnectX-5 HCA.
This series applies on top of nvme_5.5 branch cleanly.

Israel Rukshin (11):
  nvme-fabrics: allow user enabling metadata/T10-PI support
  block: Introduce BIP_NOMAP_INTEGRITY bip_flag
  nvmet: Prepare metadata request
  nvmet: Add metadata characteristics for a namespace
  nvmet: Rename nvmet_rw_len to nvmet_rw_data_len
  nvmet: Rename nvmet_check_data_len to nvmet_check_transfer_len
  nvmet: Introduce nvmet_rw_prot_len and nvmet_ns_has_pi
  nvme: Add Metadata Capabilities enumerations
  nvmet: Add metadata/T10-PI support
  nvmet: Add metadata support for block devices
  nvmet-rdma: Add metadata/T10-PI support

Max Gurtovoy (4):
  nvme: Fail __nvme_revalidate_disk in case of a spec violation
  nvme: Introduce max_integrity_segments ctrl attribute
  nvme: Inline nvme_ns_has_pi function
  nvme-rdma: Add metadata/T10-PI support

 block/t10-pi.c                    |   7 +
 drivers/nvme/host/core.c          |  55 +++---
 drivers/nvme/host/fabrics.c       |   5 +
 drivers/nvme/host/fabrics.h       |   3 +
 drivers/nvme/host/nvme.h          |   7 +
 drivers/nvme/host/pci.c           |   7 +
 drivers/nvme/host/rdma.c          | 346 ++++++++++++++++++++++++++++++++------
 drivers/nvme/target/admin-cmd.c   |  37 ++--
 drivers/nvme/target/configfs.c    |  24 +++
 drivers/nvme/target/core.c        |  54 ++++--
 drivers/nvme/target/discovery.c   |   8 +-
 drivers/nvme/target/fabrics-cmd.c |  19 ++-
 drivers/nvme/target/io-cmd-bdev.c | 105 +++++++++++-
 drivers/nvme/target/io-cmd-file.c |   8 +-
 drivers/nvme/target/nvmet.h       |  27 ++-
 drivers/nvme/target/rdma.c        | 221 ++++++++++++++++++++++--
 include/linux/bio.h               |   1 +
 include/linux/nvme.h              |   2 +
 18 files changed, 811 insertions(+), 125 deletions(-)

-- 
1.8.3.1

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