diff options
Diffstat (limited to 'drivers/nvme/host/fabrics.c')
| -rw-r--r-- | drivers/nvme/host/fabrics.c | 69 |
1 files changed, 48 insertions, 21 deletions
diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c index c190d7e36900..2e582a240943 100644 --- a/drivers/nvme/host/fabrics.c +++ b/drivers/nvme/host/fabrics.c @@ -58,7 +58,6 @@ static struct nvmf_host *nvmf_host_add(const char *hostnqn) kref_init(&host->ref); memcpy(host->nqn, hostnqn, NVMF_NQN_SIZE); - uuid_gen(&host->id); list_add_tail(&host->list, &nvmf_hosts); out_unlock: @@ -75,7 +74,6 @@ static struct nvmf_host *nvmf_host_default(void) return NULL; kref_init(&host->ref); - uuid_gen(&host->id); snprintf(host->nqn, NVMF_NQN_SIZE, "nqn.2014-08.org.nvmexpress:NVMf:uuid:%pUb", &host->id); @@ -128,16 +126,6 @@ int nvmf_get_address(struct nvme_ctrl *ctrl, char *buf, int size) EXPORT_SYMBOL_GPL(nvmf_get_address); /** - * nvmf_get_subsysnqn() - Get subsystem NQN - * @ctrl: Host NVMe controller instance which we got the NQN - */ -const char *nvmf_get_subsysnqn(struct nvme_ctrl *ctrl) -{ - return ctrl->opts->subsysnqn; -} -EXPORT_SYMBOL_GPL(nvmf_get_subsysnqn); - -/** * nvmf_reg_read32() - NVMe Fabrics "Property Get" API function. * @ctrl: Host NVMe controller instance maintaining the admin * queue used to submit the property read command to @@ -337,6 +325,24 @@ static void nvmf_log_connect_error(struct nvme_ctrl *ctrl, } } break; + + case NVME_SC_CONNECT_INVALID_HOST: + dev_err(ctrl->device, + "Connect for subsystem %s is not allowed, hostnqn: %s\n", + data->subsysnqn, data->hostnqn); + break; + + case NVME_SC_CONNECT_CTRL_BUSY: + dev_err(ctrl->device, + "Connect command failed: controller is busy or not available\n"); + break; + + case NVME_SC_CONNECT_FORMAT: + dev_err(ctrl->device, + "Connect incompatible format: %d", + cmd->connect.recfmt); + break; + default: dev_err(ctrl->device, "Connect command failed, error wo/DNR bit: %d\n", @@ -376,13 +382,7 @@ int nvmf_connect_admin_queue(struct nvme_ctrl *ctrl) cmd.connect.opcode = nvme_fabrics_command; cmd.connect.fctype = nvme_fabrics_type_connect; cmd.connect.qid = 0; - - /* - * fabrics spec sets a minimum of depth 32 for admin queue, - * so set the queue with this depth always until - * justification otherwise. - */ - cmd.connect.sqsize = cpu_to_le16(NVMF_AQ_DEPTH - 1); + cmd.connect.sqsize = cpu_to_le16(NVME_AQ_DEPTH - 1); /* * Set keep-alive timeout in seconds granularity (ms * 1000) @@ -474,7 +474,7 @@ EXPORT_SYMBOL_GPL(nvmf_connect_io_queue); bool nvmf_should_reconnect(struct nvme_ctrl *ctrl) { if (ctrl->opts->max_reconnects != -1 && - ctrl->opts->nr_reconnects < ctrl->opts->max_reconnects) + ctrl->nr_reconnects < ctrl->opts->max_reconnects) return true; return false; @@ -547,6 +547,7 @@ static const match_table_t opt_tokens = { { NVMF_OPT_KATO, "keep_alive_tmo=%d" }, { NVMF_OPT_HOSTNQN, "hostnqn=%s" }, { NVMF_OPT_HOST_TRADDR, "host_traddr=%s" }, + { NVMF_OPT_HOST_ID, "hostid=%s" }, { NVMF_OPT_ERR, NULL } }; @@ -558,6 +559,7 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, int token, ret = 0; size_t nqnlen = 0; int ctrl_loss_tmo = NVMF_DEF_CTRL_LOSS_TMO; + uuid_t hostid; /* Set defaults */ opts->queue_size = NVMF_DEF_QUEUE_SIZE; @@ -568,6 +570,8 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, if (!options) return -ENOMEM; + uuid_gen(&hostid); + while ((p = strsep(&o, ",\n")) != NULL) { if (!*p) continue; @@ -724,6 +728,17 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, } opts->host_traddr = p; break; + case NVMF_OPT_HOST_ID: + p = match_strdup(args); + if (!p) { + ret = -ENOMEM; + goto out; + } + if (uuid_parse(p, &hostid)) { + ret = -EINVAL; + goto out; + } + break; default: pr_warn("unknown parameter or missing value '%s' in ctrl creation request\n", p); @@ -743,6 +758,8 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, opts->host = nvmf_default_host; } + uuid_copy(&opts->host->id, &hostid); + out: if (!opts->discovery_nqn && !opts->kato) opts->kato = NVME_DEFAULT_KATO; @@ -803,7 +820,8 @@ EXPORT_SYMBOL_GPL(nvmf_free_options); #define NVMF_REQUIRED_OPTS (NVMF_OPT_TRANSPORT | NVMF_OPT_NQN) #define NVMF_ALLOWED_OPTS (NVMF_OPT_QUEUE_SIZE | NVMF_OPT_NR_IO_QUEUES | \ - NVMF_OPT_KATO | NVMF_OPT_HOSTNQN) + NVMF_OPT_KATO | NVMF_OPT_HOSTNQN | \ + NVMF_OPT_HOST_ID) static struct nvme_ctrl * nvmf_create_ctrl(struct device *dev, const char *buf, size_t count) @@ -854,6 +872,15 @@ nvmf_create_ctrl(struct device *dev, const char *buf, size_t count) goto out_unlock; } + if (strcmp(ctrl->subnqn, opts->subsysnqn)) { + dev_warn(ctrl->device, + "controller returned incorrect NQN: \"%s\".\n", + ctrl->subnqn); + mutex_unlock(&nvmf_transports_mutex); + ctrl->ops->delete_ctrl(ctrl); + return ERR_PTR(-EINVAL); + } + mutex_unlock(&nvmf_transports_mutex); return ctrl; |