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nvmet: expose support for fabrics SQ flow control disable in treq

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Technical Proposal introduces an indication for SQ flow control
disable support. Expose it since we are able to operate in this mode.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Sagi Grimberg 2018-11-20 10:34:19 +01:00 committed by Jens Axboe
parent 0445e1b5a2
commit 9b95d2fb85
2 changed files with 6 additions and 3 deletions
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1
drivers/nvme/target/configfs.c
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@ -1214,6 +1214,7 @@ static struct config_group *nvmet_ports_make(struct config_group *group,
port->inline_data_size = -1; /* < 0 == let the transport choose */
port->disc_addr.portid = cpu_to_le16(portid);
port->disc_addr.treq = NVMF_TREQ_DISABLE_SQFLOW;
config_group_init_type_name(&port->group, name, &nvmet_port_type);
config_group_init_type_name(&port->subsys_group,

8
include/linux/nvme.h
View File

@ -58,11 +58,13 @@ enum {
/* Transport Requirements codes for Discovery Log Page entry TREQ field */
enum {
NVMF_TREQ_NOT_SPECIFIED = 0, /* Not specified */
NVMF_TREQ_REQUIRED = 1, /* Required */
NVMF_TREQ_NOT_REQUIRED = 2, /* Not Required */
NVMF_TREQ_NOT_SPECIFIED = 0, /* Not specified */
NVMF_TREQ_REQUIRED = 1, /* Required */
NVMF_TREQ_NOT_REQUIRED = 2, /* Not Required */
#define NVME_TREQ_SECURE_CHANNEL_MASK \
(NVMF_TREQ_REQUIRED | NVMF_TREQ_NOT_REQUIRED)
NVMF_TREQ_DISABLE_SQFLOW = (1 << 2), /* Supports SQ flow control disable */
};
/* RDMA QP Service Type codes for Discovery Log Page entry TSAS