diff options
Diffstat (limited to 'nbft.c')
| -rw-r--r-- | nbft.c | 182 |
1 files changed, 110 insertions, 72 deletions
@@ -13,6 +13,7 @@ #include "nvme-print.h" #include "util/types.h" +#include "util/logging.h" #define NBFT_SYSFS_FILENAME "NBFT*" @@ -76,18 +77,85 @@ void free_nbfts(struct list_head *nbft_list) } } +/* returns 0 for success or negative errno otherwise */ +static int do_connect(nvme_root_t r, + nvme_host_t h, + struct nbft_info_subsystem_ns *ss, + struct tr_config *trcfg, + const struct nvme_fabrics_config *cfg, + enum nvme_print_flags flags, + unsigned int verbose) +{ + nvme_ctrl_t c; + int saved_log_level = log_level; + bool saved_log_pid = false; + bool saved_log_tstamp = false; + int ret; + + /* Already connected ? */ + c = lookup_ctrl(h, trcfg); + if (c && nvme_ctrl_get_name(c)) + return 0; + + c = nvme_create_ctrl(r, trcfg->subsysnqn, trcfg->transport, + trcfg->traddr, trcfg->host_traddr, + trcfg->host_iface, trcfg->trsvcid); + if (!c) + return -ENOMEM; + + /* Pause logging for unavailable SSNSs */ + if (ss && ss->unavailable && verbose < 1) { + saved_log_level = nvme_get_logging_level(r, + &saved_log_pid, + &saved_log_tstamp); + nvme_init_logging(r, -1, false, false); + } + + errno = 0; + ret = nvmf_add_ctrl(h, c, cfg); + + /* Resume logging */ + if (ss && ss->unavailable && verbose < 1) + nvme_init_logging(r, + saved_log_level, + saved_log_pid, + saved_log_tstamp); + + if (ret == -1) { + nvme_free_ctrl(c); + /* + * In case this SSNS was marked as 'unavailable' and + * our connection attempt has failed, ignore it. + */ + if (ss && ss->unavailable) { + if (verbose >= 1) + fprintf(stderr, + "SSNS %d reported as unavailable, skipping\n", + ss->index); + return 0; + } + return -errno; + } + + if (flags == NORMAL) + print_connect_msg(c); + else if (flags == JSON) + json_connect_msg(c); + + return 0; +} + int discover_from_nbft(nvme_root_t r, char *hostnqn_arg, char *hostid_arg, char *hostnqn_sys, char *hostid_sys, const char *desc, bool connect, const struct nvme_fabrics_config *cfg, char *nbft_path, - enum nvme_print_flags flags, bool verbose) + enum nvme_print_flags flags, unsigned int verbose) { char *hostnqn = NULL, *hostid = NULL, *host_traddr = NULL; nvme_host_t h; - nvme_ctrl_t c; int ret, i; struct list_head nbft_list; - struct nbft_file_entry *entry; + struct nbft_file_entry *entry = NULL; struct nbft_info_subsystem_ns **ss; struct nbft_info_hfi *hfi; @@ -98,38 +166,35 @@ int discover_from_nbft(nvme_root_t r, char *hostnqn_arg, char *hostid_arg, list_head_init(&nbft_list); ret = read_nbft_files(&nbft_list, nbft_path); if (ret) { - if (ret != ENOENT) + if (ret != -ENOENT) nvme_show_perror("Failed to access ACPI tables directory"); - goto out_free_2; + goto out_free; } - list_for_each(&nbft_list, entry, node) - for (ss = entry->nbft->subsystem_ns_list; ss && *ss; ss++) - for (i = 0; i < (*ss)->num_hfis; i++) { - nvme_ctrl_t cl; + list_for_each(&nbft_list, entry, node) { + if (hostnqn_arg) + hostnqn = hostnqn_arg; + else { + hostnqn = entry->nbft->host.nqn; + if (!hostnqn) + hostnqn = hostnqn_sys; + } - hfi = (*ss)->hfis[i]; - if (hostnqn_arg) - hostnqn = hostnqn_arg; - else { - hostnqn = entry->nbft->host.nqn; - if (!hostnqn) - hostnqn = hostnqn_sys; - } + if (hostid_arg) + hostid = hostid_arg; + else if (*entry->nbft->host.id) { + hostid = (char *)util_uuid_to_string(entry->nbft->host.id); + if (!hostid) + hostid = hostid_sys; + } - if (hostid_arg) - hostid = hostid_arg; - else if (*entry->nbft->host.id) { - hostid = (char *)util_uuid_to_string(entry->nbft->host.id); - if (!hostid) - hostid = hostid_sys; - } + h = nvme_lookup_host(r, hostnqn, hostid); + if (!h) + goto out_free; - h = nvme_lookup_host(r, hostnqn, hostid); - if (!h) { - errno = ENOMEM; - goto out_free; - } + for (ss = entry->nbft->subsystem_ns_list; ss && *ss; ss++) + for (i = 0; i < (*ss)->num_hfis; i++) { + hfi = (*ss)->hfis[i]; if (!cfg->host_traddr) { host_traddr = NULL; @@ -146,65 +211,38 @@ int discover_from_nbft(nvme_root_t r, char *hostnqn_arg, char *hostid_arg, .trsvcid = (*ss)->trsvcid, }; - /* Already connected ? */ - cl = lookup_ctrl(h, &trcfg); - if (cl && nvme_ctrl_get_name(cl)) - continue; - - c = nvme_create_ctrl(r, (*ss)->subsys_nqn, (*ss)->transport, - (*ss)->traddr, host_traddr, NULL, - (*ss)->trsvcid); - if (!c) { - errno = ENOMEM; - goto out_free; - } - - errno = 0; - ret = nvmf_add_ctrl(h, c, cfg); + ret = do_connect(r, h, *ss, &trcfg, + cfg, flags, verbose); /* * With TCP/DHCP, it can happen that the OS * obtains a different local IP address than the * firmware had. Retry without host_traddr. */ - if (ret == -1 && errno == ENVME_CONNECT_ADDRNOTAVAIL && + if (ret == -ENVME_CONNECT_ADDRNOTAVAIL && !strcmp((*ss)->transport, "tcp") && strlen(hfi->tcp_info.dhcp_server_ipaddr) > 0) { - nvme_free_ctrl(c); - trcfg.host_traddr = NULL; - cl = lookup_ctrl(h, &trcfg); - if (cl && nvme_ctrl_get_name(cl)) - continue; - - c = nvme_create_ctrl(r, (*ss)->subsys_nqn, (*ss)->transport, - (*ss)->traddr, - NULL, NULL, (*ss)->trsvcid); - if (!c) { - errno = ENOMEM; - goto out_free; - } - errno = 0; - ret = nvmf_add_ctrl(h, c, cfg); + + ret = do_connect(r, h, *ss, &trcfg, + cfg, flags, verbose); + if (ret == 0 && verbose >= 1) fprintf(stderr, - "connect with host_traddr=\"%s\" failed, success after omitting host_traddr\n", + "SSNS %d: connect with host_traddr=\"%s\" failed, success after omitting host_traddr\n", + (*ss)->index, host_traddr); } if (ret) - fprintf(stderr, "no controller found\n"); - else { - if (flags == NORMAL) - print_connect_msg(c); - else if (flags == JSON) - json_connect_msg(c); - } -out_free: - if (errno == ENOMEM) - goto out_free_2; + fprintf(stderr, "SSNS %d: no controller found\n", + (*ss)->index); + + if (ret == -ENOMEM) + goto out_free; } -out_free_2: + } +out_free: free_nbfts(&nbft_list); return errno; } |