linux-toradex.git/drivers/nvme/target/admin-cmd.c, branch v5.0

nvmet: update smart log with num err log entries

2018-12-13T08:59:07+00:00

Now that we have error log page implementation update smart log command
handler to provide number of error log entries in the lifetime of the
controller field.

Signed-off-by: Chaitanya Kulkarni 
Reviewed-by: Sagi Grimberg 
Signed-off-by: Christoph Hellwig

nvmet: add error log page cmd handler

2018-12-13T08:59:06+00:00

Now that we have support for all the major parts of the target we add
a NVMe error log page handler so that host can read the log page.

Signed-off-by: Chaitanya Kulkarni 
Reviewed-by: Sagi Grimberg 
Signed-off-by: Christoph Hellwig

nvmet: add error log support for admin-cmd

2018-12-13T08:59:05+00:00

This patch adds the support to maintain the error log page for admin
commands.

Signed-off-by: Chaitanya Kulkarni 
Reviewed-by: Sagi Grimberg 
Signed-off-by: Christoph Hellwig

nvme: remove nvme_common command cdw10 array

2018-12-13T08:59:01+00:00

This is a preparation patch which removes the nvme common command cdw10
array and replace with individual fields. This is needed for the nvmet
error log page implementation make is error log page entry offset
assignment easier.

Signed-off-by: Chaitanya Kulkarni 
Reviewed-by: Sagi Grimberg 
Signed-off-by: Christoph Hellwig

nvmet: make kato and AEN processing for use by other controllers

2018-12-08T05:26:56+00:00

Make common process of get/set features available to other controllers by
making simple functions static inline and others not static and prototypes
in nvmet.h file

Also remove static from nvmet_execute_async_event and add prototype to
nvmet.h to allow used by other controllers

Signed-off-by: Jay Sternberg 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Sagi Grimberg 
Reviewed-by: Johannes Thumshirn 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Jens Axboe

nvmet: allow Keep Alive for Discovery controller

2018-12-08T05:26:56+00:00

Per change to specification allowing Discovery controllers to have
explicit persistent connections, remove restriction on Discovery
controllers allowing kato on connect.

Signed-off-by: Jay Sternberg 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Sagi Grimberg 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Jens Axboe

nvmet: change aen mask functions to use bit numbers

2018-12-08T05:26:56+00:00

Functions nvmet_aen_disabled and nvmet_clear_aen were using
values not bit numbers ie 1 << 9 not 9 for bit function clear_bit
and test_and_set_bit.

Signed-off-by: Jay Sternberg 
Reviewed-by: Phil Cayton 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Jens Axboe

nvmet: provide aen bit functions for multiple controller types

2018-12-08T05:26:56+00:00

Move nvmet_aen_disabled and nvmet_clear_aen in preparation for other types
of controllers to use, initially the discovery controller.

Signed-off-by: Jay Sternberg 
Reviewed-by: Johannes Thumshirn 
Reviewed-by: Sagi Grimberg 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Jens Axboe

nvmet: support for traffic based keep-alive

2018-12-08T05:26:56+00:00

A controller that supports traffic based keep-alive can restart the keep
alive timer even when no keep-alive was not received in the kato period
as long as other admin or I/O commands were received.  For each command
set ctrl->cmd_seen to true, and when keep-alive timer expires, if any
commands were seen, resched ka_work instead of escalating to a fatal
error.

Signed-off-by: Sagi Grimberg 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Jens Axboe

nvme: introduce ctrl attributes enumeration

2018-12-08T05:26:55+00:00

We are growing more controller attributes, so use a proper enumeration
for it.  For now just add the 128-bit hostid which we support.

Reviewed-by: Chaitanya Kulkarni 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Sagi Grimberg 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Jens Axboe