Commit 7a665d2f authored by Daniel Verkamp's avatar Daniel Verkamp Committed by Sagi Grimberg

nvme-fabrics: change NQN UUID to big-endian format

NVM Express 1.2.1 section 7.9, NVMe Qualified Names, specifies that the
UUID format of NQN uses a UUID based on RFC 4122.

RFC 4122 specifies that the UUID is encoded in big-endian byte order.

Switch the NVMe over Fabrics host ID field from little-endian UUID to
big-endian UUID to match the specification.
Signed-off-by: 's avatarDaniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: 's avatarJay Freyensee <james_p_freyensee@linux.intel.com>
Signed-off-by: 's avatarSagi Grimberg <sagi@grimberg.me>
parent eadb7cf4
......@@ -56,7 +56,7 @@ static struct nvmf_host *nvmf_host_add(const char *hostnqn)
kref_init(&host->ref);
memcpy(host->nqn, hostnqn, NVMF_NQN_SIZE);
uuid_le_gen(&host->id);
uuid_be_gen(&host->id);
list_add_tail(&host->list, &nvmf_hosts);
out_unlock:
......@@ -73,9 +73,9 @@ static struct nvmf_host *nvmf_host_default(void)
return NULL;
kref_init(&host->ref);
uuid_le_gen(&host->id);
uuid_be_gen(&host->id);
snprintf(host->nqn, NVMF_NQN_SIZE,
"nqn.2014-08.org.nvmexpress:NVMf:uuid:%pUl", &host->id);
"nqn.2014-08.org.nvmexpress:NVMf:uuid:%pUb", &host->id);
mutex_lock(&nvmf_hosts_mutex);
list_add_tail(&host->list, &nvmf_hosts);
......@@ -382,7 +382,7 @@ int nvmf_connect_admin_queue(struct nvme_ctrl *ctrl)
if (!data)
return -ENOMEM;
memcpy(&data->hostid, &ctrl->opts->host->id, sizeof(uuid_le));
memcpy(&data->hostid, &ctrl->opts->host->id, sizeof(uuid_be));
data->cntlid = cpu_to_le16(0xffff);
strncpy(data->subsysnqn, ctrl->opts->subsysnqn, NVMF_NQN_SIZE);
strncpy(data->hostnqn, ctrl->opts->host->nqn, NVMF_NQN_SIZE);
......@@ -441,7 +441,7 @@ int nvmf_connect_io_queue(struct nvme_ctrl *ctrl, u16 qid)
if (!data)
return -ENOMEM;
memcpy(&data->hostid, &ctrl->opts->host->id, sizeof(uuid_le));
memcpy(&data->hostid, &ctrl->opts->host->id, sizeof(uuid_be));
data->cntlid = cpu_to_le16(ctrl->cntlid);
strncpy(data->subsysnqn, ctrl->opts->subsysnqn, NVMF_NQN_SIZE);
strncpy(data->hostnqn, ctrl->opts->host->nqn, NVMF_NQN_SIZE);
......
......@@ -34,7 +34,7 @@ struct nvmf_host {
struct kref ref;
struct list_head list;
char nqn[NVMF_NQN_SIZE];
uuid_le id;
uuid_be id;
};
/**
......
......@@ -794,7 +794,7 @@ struct nvmf_connect_command {
};
struct nvmf_connect_data {
uuid_le hostid;
uuid_be hostid;
__le16 cntlid;
char resv4[238];
char subsysnqn[NVMF_NQN_FIELD_LEN];
......
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