tmakin/tegra-linux-noble
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

nvmet: make 'tsas' attribute idempotent for RDMA

Browse Source 
BugLink: https://bugs.launchpad.net/bugs/2076435

[ Upstream commit 0f1f5803920d2a6b88bee950914fd37421e17170 ]

The RDMA transport defines values for TSAS, but it cannot be changed as
we only support the 'connected' mode.
So to avoid errors during reconfiguration we should allow to write the
current value.

Fixes: 3f123494db ("nvmet: make TCP sectype settable via configfs")
Signed-off-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Portia Stephens <portia.stephens@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Hannes Reinecke
2024-06-17 09:27:28 +02:00
committed by Stefan Bader
parent 8a10df66d5
commit 3b562dd4c1
2 changed files with 32 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/nvme/target/configfs.c
+30 -9
View File
@@ -387,25 +387,46 @@ static ssize_t nvmet_addr_tsas_show(struct config_item *item,
return sprintf(page, "\n");
}
static u8 nvmet_addr_tsas_rdma_store(const char *page)
{
int i;
for (i = 0; i < ARRAY_SIZE(nvmet_addr_tsas_rdma); i++) {
if (sysfs_streq(page, nvmet_addr_tsas_rdma[i].name))
return nvmet_addr_tsas_rdma[i].type;
}
return NVMF_RDMA_QPTYPE_INVALID;
}
static u8 nvmet_addr_tsas_tcp_store(const char *page)
{
int i;
for (i = 0; i < ARRAY_SIZE(nvmet_addr_tsas_tcp); i++) {
if (sysfs_streq(page, nvmet_addr_tsas_tcp[i].name))
return nvmet_addr_tsas_tcp[i].type;
}
return NVMF_TCP_SECTYPE_INVALID;
}
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 treq = nvmet_port_disc_addr_treq_mask(port);
u8 sectype;
int i;
u8 sectype, qptype;
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;
if (port->disc_addr.trtype == NVMF_TRTYPE_RDMA) {
qptype = nvmet_addr_tsas_rdma_store(page);
if (qptype == port->disc_addr.tsas.rdma.qptype)
return count;
} else if (port->disc_addr.trtype == NVMF_TRTYPE_TCP) {
sectype = nvmet_addr_tsas_tcp_store(page);
if (sectype != NVMF_TCP_SECTYPE_INVALID)
goto found;
}
}
pr_err("Invalid value '%s' for tsas\n", page);
include/linux/nvme.h
+2
View File
@@ -87,6 +87,7 @@ enum {
enum {
NVMF_RDMA_QPTYPE_CONNECTED = 1, /* Reliable Connected */
NVMF_RDMA_QPTYPE_DATAGRAM = 2, /* Reliable Datagram */
NVMF_RDMA_QPTYPE_INVALID = 0xff,
};
/* RDMA Provider Type codes for Discovery Log Page entry TSAS
@@ -112,6 +113,7 @@ enum {
NVMF_TCP_SECTYPE_NONE = 0, /* No Security */
NVMF_TCP_SECTYPE_TLS12 = 1, /* TLSv1.2, NVMe-oF 1.1 and NVMe-TCP 3.6.1.1 */
NVMF_TCP_SECTYPE_TLS13 = 2, /* TLSv1.3, NVMe-oF 1.1 and NVMe-TCP 3.6.1.1 */
NVMF_TCP_SECTYPE_INVALID = 0xff,
};
#define NVME_AQ_DEPTH 32