On Thu, May 06, 2021 at 05:45:16PM +0000, Wei Liu wrote:

On Thu, Apr 15, 2021 at 01:22:32PM +0000, Michael Kelley wrote:

quoted

From: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Sent: Thursday, April 15, 2021 3:59 AM

quoted

Use blk_mq_unique_tag() to generate requestIDs for StorVSC, avoiding
all issues with allocating enough entries in the VMbus requestor.

Suggested-by: Michael Kelley <redacted>
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
---
Changes since RFC:
  - pass sentinel values for {init,reset}_request in vmbus_sendpacket()
  - remove/inline the storvsc_request_addr() callback
  - make storvsc_next_request_id() 'static'
  - add code to handle the case of an unsolicited message from Hyper-V
  - other minor/style changes

[1] https://lore.kernel.org/linux-hyperv/20210408161315.341888-1-parri.andrea@gmail.com/ (local)

 drivers/hv/channel.c              | 14 ++---
 drivers/hv/ring_buffer.c          | 13 +++--
 drivers/net/hyperv/netvsc.c       |  8 ++-
 drivers/net/hyperv/rndis_filter.c |  2 +
 drivers/scsi/storvsc_drv.c        | 94 +++++++++++++++++++++----------
 include/linux/hyperv.h            | 13 ++++-
 6 files changed, 95 insertions(+), 49 deletions(-)

LGTM

Reviewed-by: Michael Kelley <redacted>

Although this patch is tagged with SCSI, I think it would be better if
this goes through the hyperv tree. Let me know if there is any
objection.

Andrea, please rebase this patch on top of hyperv-next. It does not
apply as-is.

Wei.