From: Uday Shankar <ushankar@purestorage.com>
To: Costa Sapuntzakis <costa@purestorage.com>,
Randy Jennings <randyj@purestorage.com>,
Hannes Reinecke <hare@suse.de>, Sagi Grimberg <sagi@grimberg.me>,
Keith Busch <kbusch@kernel.org>, Christoph Hellwig <hch@lst.de>,
Jens Axboe <axboe@fb.com>
Cc: Uday Shankar <ushankar@purestorage.com>, linux-nvme@lists.infradead.org
Subject: [PATCH 0/3] keepalive bugfixes
Date: Mon, 17 Apr 2023 16:55:55 -0600 [thread overview]
Message-ID: <20230417225558.2890062-1-ushankar@purestorage.com> (raw)
While reviewing the Linux KATO implementation in an attempt to better
understand the current NVMe Keep Alive specification, we found a
few issues in the host implementation that could contribute to spurious
Keep Alive timeouts being detected by controllers.
Uday Shankar (3):
nvme: double KA polling frequency to avoid KATO with TBKAS on
nvme: check IO start time when deciding to defer KA
nvme: improve handling of long keep alives
drivers/nvme/host/core.c | 38 +++++++++++++++++++++++++++++++++++---
drivers/nvme/host/nvme.h | 5 +++--
2 files changed, 38 insertions(+), 5 deletions(-)
--
2.25.1
next reply other threads:[~2023-04-17 22:56 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-17 22:55 Uday Shankar [this message]
2023-04-17 22:55 ` [PATCH 1/3] nvme: double KA polling frequency to avoid KATO with TBKAS on Uday Shankar
2023-04-18 16:03 ` Sagi Grimberg
2023-04-18 16:48 ` Hannes Reinecke
2023-04-17 22:55 ` [PATCH 2/3] nvme: check IO start time when deciding to defer KA Uday Shankar
2023-04-18 16:56 ` Sagi Grimberg
2023-04-20 19:37 ` Uday Shankar
2023-04-17 22:55 ` [PATCH 3/3] nvme: improve handling of long keep alives Uday Shankar
2023-04-18 16:59 ` Sagi Grimberg
2023-04-20 19:34 ` Uday Shankar
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