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nvmet: make TCP sectype settable via configfs

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Add a new configfs attribute 'addr_tsas' to make the TCP sectype
settable via configfs.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Hannes Reinecke 2023-08-24 16:39:19 +02:00 committed by Keith Busch
parent adf22c520b
commit 3f123494db
1 changed files with 74 additions and 1 deletions
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75
drivers/nvme/target/configfs.c
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@ -159,6 +159,11 @@ static const struct nvmet_type_name_map nvmet_addr_treq[] = {
{ NVMF_TREQ_NOT_REQUIRED, "not required" },
};
static inline u8 nvmet_port_disc_addr_treq_mask(struct nvmet_port *port)
{
return (port->disc_addr.treq & ~NVME_TREQ_SECURE_CHANNEL_MASK);
}
static ssize_t nvmet_addr_treq_show(struct config_item *item, char *page)
{
u8 treq = to_nvmet_port(item)->disc_addr.treq &
@ -178,7 +183,7 @@ static ssize_t nvmet_addr_treq_store(struct config_item *item,
const char *page, size_t count)
{
struct nvmet_port *port = to_nvmet_port(item);
u8 treq = port->disc_addr.treq & ~NVME_TREQ_SECURE_CHANNEL_MASK;
u8 treq = nvmet_port_disc_addr_treq_mask(port);
int i;
if (nvmet_is_port_enabled(port, __func__))
@ -303,6 +308,11 @@ static void nvmet_port_init_tsas_rdma(struct nvmet_port *port)
port->disc_addr.tsas.rdma.cms = NVMF_RDMA_CMS_RDMA_CM;
}
static void nvmet_port_init_tsas_tcp(struct nvmet_port *port, int sectype)
{
port->disc_addr.tsas.tcp.sectype = sectype;
}
static ssize_t nvmet_addr_trtype_store(struct config_item *item,
const char *page, size_t count)
{
@ -325,11 +335,73 @@ static ssize_t nvmet_addr_trtype_store(struct config_item *item,
port->disc_addr.trtype = nvmet_transport[i].type;
if (port->disc_addr.trtype == NVMF_TRTYPE_RDMA)
nvmet_port_init_tsas_rdma(port);
else if (port->disc_addr.trtype == NVMF_TRTYPE_TCP)
nvmet_port_init_tsas_tcp(port, NVMF_TCP_SECTYPE_NONE);
return count;
}
CONFIGFS_ATTR(nvmet_, addr_trtype);
static const struct nvmet_type_name_map nvmet_addr_tsas_tcp[] = {
{ NVMF_TCP_SECTYPE_NONE, "none" },
{ NVMF_TCP_SECTYPE_TLS13, "tls1.3" },
};
static const struct nvmet_type_name_map nvmet_addr_tsas_rdma[] = {
{ NVMF_RDMA_QPTYPE_CONNECTED, "connected" },
{ NVMF_RDMA_QPTYPE_DATAGRAM, "datagram" },
};
static ssize_t nvmet_addr_tsas_show(struct config_item *item,
char *page)
{
struct nvmet_port *port = to_nvmet_port(item);
int i;
if (port->disc_addr.trtype == NVMF_TRTYPE_TCP) {
for (i = 0; i < ARRAY_SIZE(nvmet_addr_tsas_tcp); i++) {
if (port->disc_addr.tsas.tcp.sectype == nvmet_addr_tsas_tcp[i].type)
return sprintf(page, "%s\n", nvmet_addr_tsas_tcp[i].name);
}
} else if (port->disc_addr.trtype == NVMF_TRTYPE_RDMA) {
for (i = 0; i < ARRAY_SIZE(nvmet_addr_tsas_rdma); i++) {
if (port->disc_addr.tsas.rdma.qptype == nvmet_addr_tsas_rdma[i].type)
return sprintf(page, "%s\n", nvmet_addr_tsas_rdma[i].name);
}
}
return sprintf(page, "reserved\n");
}
static ssize_t nvmet_addr_tsas_store(struct config_item *item,
const char *page, size_t count)
{
struct nvmet_port *port = to_nvmet_port(item);
u8 sectype;
int i;
if (nvmet_is_port_enabled(port, __func__))
return -EACCES;
if (port->disc_addr.trtype != NVMF_TRTYPE_TCP)
return -EINVAL;
for (i = 0; i < ARRAY_SIZE(nvmet_addr_tsas_tcp); i++) {
if (sysfs_streq(page, nvmet_addr_tsas_tcp[i].name)) {
sectype = nvmet_addr_tsas_tcp[i].type;
goto found;
}
}
pr_err("Invalid value '%s' for tsas\n", page);
return -EINVAL;
found:
nvmet_port_init_tsas_tcp(port, sectype);
return count;
}
CONFIGFS_ATTR(nvmet_, addr_tsas);
/*
* Namespace structures & file operation functions below
*/
@ -1741,6 +1813,7 @@ static struct configfs_attribute *nvmet_port_attrs[] = {
&nvmet_attr_addr_traddr,
&nvmet_attr_addr_trsvcid,
&nvmet_attr_addr_trtype,
&nvmet_attr_addr_tsas,
&nvmet_attr_param_inline_data_size,
#ifdef CONFIG_BLK_DEV_INTEGRITY
&nvmet_attr_param_pi_enable,