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From: Minwoo Im <minwoo.im.dev@gmail.com>
To: qemu-devel@nongnu.org, qemu-block@nongnu.org
Cc: Keith Busch <kbusch@kernel.org>, Klaus Jensen <its@irrelevant.dk>,
	Minwoo Im <minwoo.im.dev@gmail.com>,
	Kevin Wolf <kwolf@redhat.com>, Max Reitz <mreitz@redhat.com>
Subject: [PATCH V2 0/6] hw/block/nvme: support namespace attachment
Date: Thu, 11 Feb 2021 01:09:30 +0900	[thread overview]
Message-ID: <20210210160937.1100-1-minwoo.im.dev@gmail.com> (raw)

Hello,

This series supports namespace attachment: attach and detach.  This is
the second version series with a fix a bug on choosing a controller to
attach for a namespace in the attach command handler.

Since V1:
  - Fix to take 'ctrl' which is given from the command rather than 'n'.
    (Klaus)
  - Add a [7/7] patch to support CNS 12h Identify command (Namespace
    Attached Controller list).

This series has been tested with the following: (!CONFIG_NVME_MULTIPATH)

  -device nvme-subsys,id=subsys0 \
  -device nvme,serial=foo,id=nvme0,subsys=subsys0 \
  -device nvme,serial=bar,id=nvme1,subsys=subsys0 \
  -device nvme-ns,id=ns1,drive=drv0,nsid=1,subsys=subsys0,zoned=false \
  -device nvme-ns,id=ns2,drive=drv1,nsid=2,subsys=subsys0,zoned=true \
  -device nvme-ns,id=ns3,drive=drv2,nsid=3,subsys=subsys0,detached=true,zoned=false \
  -device nvme-ns,id=ns4,drive=drv3,nsid=4,subsys=subsys0,detached=true,zoned=true \

  root@vm:~/work# nvme list
  Node                  SN                   Model                                    Namespace Usage                      Format           FW Rev
  --------------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- --------
  /dev/nvme0n1          foo                  QEMU NVMe Ctrl                           1         268.44  MB / 268.44  MB    512   B +  0 B   1.0
  /dev/nvme0n2          foo                  QEMU NVMe Ctrl                           2         268.44  MB / 268.44  MB    512   B +  0 B   1.0
  /dev/nvme1n1          bar                  QEMU NVMe Ctrl                           1         268.44  MB / 268.44  MB    512   B +  0 B   1.0
  /dev/nvme1n2          bar                  QEMU NVMe Ctrl                           2         268.44  MB / 268.44  MB    512   B +  0 B   1.0
  root@vm:~/work# nvme attach-ns /dev/nvme0 --namespace-id=3 --controllers=0,1
  attach-ns: Success, nsid:3
  root@vm:~/work# echo 1 > /sys/class/nvme/nvme0/rescan_controller 
  root@vm:~/work# echo 1 > /sys/class/nvme/nvme1/rescan_controller 
  root@vm:~/work# nvme list
  Node                  SN                   Model                                    Namespace Usage                      Format           FW Rev  
  --------------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- --------
  /dev/nvme0n1          foo                  QEMU NVMe Ctrl                           1         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme0n2          foo                  QEMU NVMe Ctrl                           2         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme0n3          foo                  QEMU NVMe Ctrl                           3         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme1n1          bar                  QEMU NVMe Ctrl                           1         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme1n2          bar                  QEMU NVMe Ctrl                           2         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme1n3          bar                  QEMU NVMe Ctrl                           3         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  root@vm:~/work# nvme detach-ns /dev/nvme0 --namespace-id=3 --controllers=0
  detach-ns: Success, nsid:3
  root@vm:~/work# echo 1 > /sys/class/nvme/nvme0/rescan_controller 
  root@vm:~/work# nvme list
  Node                  SN                   Model                                    Namespace Usage                      Format           FW Rev  
  --------------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- --------
  /dev/nvme0n1          foo                  QEMU NVMe Ctrl                           1         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme0n2          foo                  QEMU NVMe Ctrl                           2         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme1n1          bar                  QEMU NVMe Ctrl                           1         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme1n2          bar                  QEMU NVMe Ctrl                           2         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme1n3          bar                  QEMU NVMe Ctrl                           3         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  root@vm:~/work# nvme detach-ns /dev/nvme0 --namespace-id=1 --controllers=1
  detach-ns: Success, nsid:1
  root@vm:~/work# echo 1 > /sys/class/nvme/nvme1/rescan_controller 
  root@vm:~/work# nvme list
  Node                  SN                   Model                                    Namespace Usage                      Format           FW Rev  
  --------------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- --------
  /dev/nvme0n1          foo                  QEMU NVMe Ctrl                           1         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme0n2          foo                  QEMU NVMe Ctrl                           2         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme1n2          bar                  QEMU NVMe Ctrl                           2         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme1n3          bar                  QEMU NVMe Ctrl                           3         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  root@vm:~/work# nvme attach-ns /dev/nvme0 --namespace-id=1 --controllers=1
  attach-ns: Success, nsid:1
  root@vm:~/work# echo 1 > /sys/class/nvme/nvme1/rescan_controller 
  root@vm:~/work# nvme list
  Node                  SN                   Model                                    Namespace Usage                      Format           FW Rev  
  --------------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- --------
  /dev/nvme0n1          foo                  QEMU NVMe Ctrl                           1         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme0n2          foo                  QEMU NVMe Ctrl                           2         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme1n1          bar                  QEMU NVMe Ctrl                           1         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme1n2          bar                  QEMU NVMe Ctrl                           2         268.44  MB / 268.44  MB    512   B +  0 B   1.0     
  /dev/nvme1n3          bar                  QEMU NVMe Ctrl                           3         268.44  MB / 268.44  MB    512   B +  0 B   1.0     

Minwoo Im (7):
  hw/block/nvme: support namespace detach
  hw/block/nvme: fix namespaces array to 1-based
  hw/block/nvme: fix allocated namespace list to 256
  hw/block/nvme: support allocated namespace type
  hw/block/nvme: refactor nvme_select_ns_iocs
  hw/block/nvme: support namespace attachment command
  hw/block/nvme: support Identify NS Attached Controller List

 hw/block/nvme-ns.c     |   1 +
 hw/block/nvme-ns.h     |   1 +
 hw/block/nvme-subsys.h |  28 ++++-
 hw/block/nvme.c        | 241 +++++++++++++++++++++++++++++++++++------
 hw/block/nvme.h        |  33 ++++++
 hw/block/trace-events  |   3 +
 include/block/nvme.h   |   6 +
 7 files changed, 278 insertions(+), 35 deletions(-)

-- 
2.17.1



             reply	other threads:[~2021-02-10 16:11 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-10 16:09 Minwoo Im [this message]
2021-02-10 16:09 ` [PATCH V2 1/7] hw/block/nvme: support namespace detach Minwoo Im
2021-02-10 16:09 ` [PATCH V2 2/7] hw/block/nvme: fix namespaces array to 1-based Minwoo Im
2021-02-10 16:09 ` [PATCH V2 3/7] hw/block/nvme: fix allocated namespace list to 256 Minwoo Im
2021-02-10 16:09 ` [PATCH V2 4/7] hw/block/nvme: support allocated namespace type Minwoo Im
2021-02-10 16:09 ` [PATCH V2 5/7] hw/block/nvme: refactor nvme_select_ns_iocs Minwoo Im
2021-02-10 16:09 ` [PATCH V2 6/7] hw/block/nvme: support namespace attachment command Minwoo Im
2021-02-22 20:43   ` Klaus Jensen
2021-02-26 17:59   ` Keith Busch
2021-02-27  1:01     ` Minwoo Im
2021-02-10 16:09 ` [PATCH V2 7/7] hw/block/nvme: support Identify NS Attached Controller List Minwoo Im
2021-02-22 20:53 ` [PATCH V2 0/6] hw/block/nvme: support namespace attachment Klaus Jensen
2021-02-26 13:14 ` Minwoo Im

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