kernel/drivers/nvme/target/discovery.c, branch linux-6.9.y

nvmet: set maxcmd to be per controller

2024-03-02T23:18:08Z

This is a preparation for having a dynamic configuration of max queue size for a controller. Make sure that the maxcmd field stays the same as the MQES (+1) value as we do today. Reviewed-by: Christoph Hellwig Reviewed-by: Israel Rukshin Reviewed-by: Sagi Grimberg Signed-off-by: Max Gurtovoy Signed-off-by: Keith Busch

nvmet: unify aer type enum

2024-01-23T16:29:08Z

The host and target use two definition of aer type, unify them into a single one. Signed-off-by: Guixin Liu Reviewed-by: Christoph Hellwig Reviewed-by: Sagi Grimberg Signed-off-by: Keith Busch

nvme: move from strlcpy with unused retval to strscpy

2022-09-19T09:33:53Z

Follow the advice of the below link and prefer 'strscpy' in this subsystem. Conversion is 1:1 because the return value is not used. Generated by a coccinelle script. Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Signed-off-by: Wolfram Sang Signed-off-by: Christoph Hellwig

nvmet: register discovery subsystem as 'current'

2021-10-27T06:06:04Z

Register the discovery subsystem as the 'current' discovery subsystem, and add a new discovery log page entry for it. Signed-off-by: Hannes Reinecke Signed-off-by: Christoph Hellwig

nvmet: set 'CNTRLTYPE' in the identify controller data

2021-10-20T17:16:02Z

Set the correct 'CNTRLTYPE' field in the identify controller data. Signed-off-by: Hannes Reinecke Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig

nvmet: allow mn change if subsys not discovered

2021-06-17T13:51:19Z

Currently, once the subsystem's model_number is set for the first time there is no way to change it. However, as long as no connection was established to nvmf target, there is no reason for such restriction and we should allow to change the subsystem's model_number as many times as needed. In addition, in order to simplfy the changes and make the model number flow more similar to the rest of the attributes in the Identify Controller data structure, we set a default value for the model number at the initiation of the subsystem. Reviewed-by: Max Gurtovoy Signed-off-by: Noam Gottlieb Signed-off-by: Christoph Hellwig

nvmet: change sn size and check validity

2021-06-17T13:51:19Z

According to the NVM specification, the serial_number should be 20 bytes (bytes 23:04 of the Identify Controller data structure), and should contain only ASCII characters. In accordance, the serial_number size is changed to 20 bytes and before any attempt to store a new value in serial_number we check that the input is valid - i.e. contains only ASCII characters, is not empty and does not exceed 20 bytes. Signed-off-by: Max Gurtovoy Signed-off-by: Noam Gottlieb Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig

nvmet: demote discovery cmd parse err msg to debug

2021-05-11T16:30:45Z

Host can send invalid commands and flood the target with error messages for the discovery controller. Demote the error message from pr_err() to pr_debug( in nvmet_parse_discovery_cmd(). Signed-off-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig

nvmet: return proper error code from discovery ctrl

2021-04-02T16:48:28Z

Return NVME_SC_INVALID_FIELD from discovery controller like normal controller when executing identify or get log page command. Signed-off-by: Hou Pu Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig

nvmet: make sure discovery change log event is protected

2020-12-01T19:36:37Z

Generation counter is protected by nvmet_config_sem. Make sure the callers that call functions that might change it, are calling it properly. Signed-off-by: Max Gurtovoy Reviewed-by: Israel Rukshin Reviewed-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig