From: sagi@grimberg.me (Sagi Grimberg)
Subject: [PATCH rfc 0/3] add support to discovery async event notifications
Date: Thu, 4 Oct 2018 14:23:23 -0700 [thread overview]
Message-ID: <20181004212328.30205-1-sagi@grimberg.me> (raw)
In order to support discovery AENs we need to have two things:
1. Support long lived discovery controller sessions that would allow to
receive discovery AENs. This means we need to specify kato in connect
2. Support discovery log change events. The choice here is to simply fire
a udev event and let userspace to:
1. issue an updated discovery log page via our discovery controller (1)
2. connect to every new subsystem/port that exists in the system.
This patch set was developed against the nvmet support patch set from Jay.
nvme-cli patches are also included in this series.
the udev rule that ultimately achieves dynamic discovery enumeration (TP 8002)
is:
SUBSYSTEM=="nvme", ACTION=="change", \
RUN+="/usr/sbin/nvme connect-all --device=nvme$env{NVME_INSTANCE} --transport=$env{NVME_TRTYPE} \
--traddr=$env{NVME_TRADDR} --trsvcid=$env{NVME_TRSVCID} & disown
Sagi Grimberg (3):
nvme-fabrics: allow discovery subsystems accept a kato
nvme: enable aen also for discovery controllers
nvme: fire discovery log page change events to userspace
drivers/nvme/host/core.c | 36 +++++++++++++++++++++++++++++++++---
drivers/nvme/host/fabrics.c | 16 +++-------------
2 files changed, 36 insertions(+), 16 deletions(-)
--
2.17.1
next reply other threads:[~2018-10-04 21:23 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-04 21:23 Sagi Grimberg [this message]
2018-10-04 21:23 ` [PATCH rfc 1/3] nvme-fabrics: allow discovery subsystems accept a kato Sagi Grimberg
2018-10-05 5:50 ` Hannes Reinecke
2018-10-04 21:23 ` [PATCH rfc 2/3] nvme: enable aen also for discovery controllers Sagi Grimberg
2018-10-05 5:51 ` Hannes Reinecke
2018-10-04 21:23 ` [PATCH rfc 3/3] nvme: fire discovery log page change events to userspace Sagi Grimberg
2018-10-05 5:51 ` Hannes Reinecke
2018-10-04 21:23 ` [PATCH 4/3 rfc nvme-cli] fabrics: support persistent connections to a discovery controller Sagi Grimberg
2018-10-04 21:23 ` [PATCH 5/3 rfc nvme-cli] fabrics: allow user to retrieve discovery log from existing " Sagi Grimberg
2018-10-05 5:50 ` [PATCH rfc 0/3] add support to discovery async event notifications Hannes Reinecke
2018-10-05 7:08 ` Sagi Grimberg
2018-10-05 7:36 ` Hannes Reinecke
2018-10-05 19:34 ` Sagi Grimberg
2018-10-16 1:11 ` Sagi Grimberg
2018-10-16 5:59 ` Hannes Reinecke
2018-10-16 17:59 ` James Smart
2018-10-17 15:29 ` Hannes Reinecke
2018-10-19 0:44 ` Sagi Grimberg
2018-10-19 16:09 ` James Smart
2018-10-17 0:38 ` Sagi Grimberg
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