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nvme-cli
0021-Add-host-iface-option.patch
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File 0021-Add-host-iface-option.patch of Package nvme-cli
From: Martin Belanger <martin.belanger@dell.com> Date: Thu, 20 May 2021 13:49:44 -0400 Subject: Add --host-iface option Git-commit: 0120b08f7e12f3bccb758cc4f5f2b3a5a1fdbfff References: bsc#1199670 --- Documentation/nvme-connect-all.txt | 10 +++++++++- Documentation/nvme-connect.txt | 10 +++++++++- Documentation/nvme-discover.txt | 20 ++++++++++++++------ etc/discovery.conf.in | 2 +- fabrics.c | 30 ++++++++++++++++++++++++++---- nvme.h | 1 + 6 files changed, 60 insertions(+), 13 deletions(-) --- a/Documentation/nvme-connect-all.txt +++ b/Documentation/nvme-connect-all.txt @@ -13,6 +13,7 @@ SYNOPSIS [--traddr=<traddr> | -a <traddr>] [--trsvcid=<trsvcid> | -s <trsvcid>] [--host-traddr=<traddr> | -w <traddr>] + [--host-iface=<iface> | -f <iface>] [--hostnqn=<hostnqn> | -q <hostnqn>] [--hostid=<hostid> | -I <hostid>] [--raw=<filename> | -r <filename>] @@ -77,7 +78,14 @@ OPTIONS -w <traddr>:: --host-traddr=<traddr>:: This field specifies the network address used on the host to connect - to the Discovery Controller. + to the Controller. For TCP, this sets the source address on the socket. + +-f <iface>:: +--host-iface=<iface>:: + This field specifies the network interface used on the host to connect + to the Controller (e.g. IP eth1, enp2s0, enx78e7d1ea46da). This forces + the connection to be made on a specific interface instead of letting + the system decide. -q <hostnqn>:: --hostnqn=<hostnqn>:: --- a/Documentation/nvme-connect.txt +++ b/Documentation/nvme-connect.txt @@ -14,6 +14,7 @@ SYNOPSIS [--traddr=<traddr> | -a <traddr>] [--trsvcid=<trsvcid> | -s <trsvcid>] [--host-traddr=<traddr> | -w <traddr>] + [--host-iface=<iface> | -f <iface>] [--hostnqn=<hostnqn> | -q <hostnqn>] [--hostid=<hostid> | -I <hostid>] [--nr-io-queues=<#> | -i <#>] @@ -69,7 +70,14 @@ OPTIONS -w <traddr>:: --host-traddr=<traddr>:: This field specifies the network address used on the host to connect - to the Controller. + to the Controller. For TCP, this sets the source address on the socket. + +-f <iface>:: +--host-iface=<iface>:: + This field specifies the network interface used on the host to connect + to the Controller (e.g. IP eth1, enp2s0, enx78e7d1ea46da). This forces + the connection to be made on a specific interface instead of letting + the system decide. -q <hostnqn>:: --hostnqn=<hostnqn>:: --- a/Documentation/nvme-discover.txt +++ b/Documentation/nvme-discover.txt @@ -13,6 +13,7 @@ SYNOPSIS [--traddr=<traddr> | -a <traddr>] [--trsvcid=<trsvcid> | -s <trsvcid>] [--host-traddr=<traddr> | -w <traddr>] + [--host-iface=<iface> | -f <iface>] [--hostnqn=<hostnqn> | -q <hostnqn>] [--hostid=<hostid> | -I <hostid>] [--raw=<filename> | -r <filename>] @@ -33,7 +34,7 @@ DESCRIPTION Send one or more Get Log Page requests to a NVMe-over-Fabrics Discovery Controller. -If no parameters are given, then 'nvme discover' will attempt to +If no parameters are given, then 'nvme discover' will attempt to find a /etc/nvme/discovery.conf file to use to supply a list of Discovery commands to run. If no /etc/nvme/discovery.conf file exists, the command will quit with an error. @@ -44,7 +45,7 @@ request will then be sent to the specifi BACKGROUND ---------- -The NVMe-over-Fabrics specification defines the concept of a +The NVMe-over-Fabrics specification defines the concept of a Discovery Controller that an NVMe Host can query on a fabric network to discover NVMe subsystems contained in NVMe Targets which it can connect to on the network. The Discovery Controller @@ -64,7 +65,7 @@ resources are allocated to the NVMe Host A Discovery Controller has it's own NQN defined in the NVMe-over-Fabrics specification, *nqn.2014-08.org.nvmexpress.discovery*. All Discovery Controllers must use this NQN name. This NQN is used by default by -nvme-cli for the 'discover' command. +nvme-cli for the 'discover' command. OPTIONS ------- @@ -97,11 +98,18 @@ OPTIONS -w <traddr>:: --host-traddr=<traddr>:: This field specifies the network address used on the host to connect - to the Discovery Controller. - + to the Controller. For TCP, this sets the source address on the socket. + +-f <iface>:: +--host-iface=<iface>:: + This field specifies the network interface used on the host to connect + to the Controller (e.g. IP eth1, enp2s0, enx78e7d1ea46da). This forces + the connection to be made on a specific interface instead of letting + the system decide. + -q <hostnqn>:: --hostnqn=<hostnqn>:: - Overrides the default host NQN that identifies the NVMe Host. + Overrides the default host NQN that identifies the NVMe Host. If this option is not specified, the default is read from /etc/nvme/hostnqn first. If that does not exist, the autogenerated NQN value from the NVMe Host kernel module is used next. --- a/etc/discovery.conf.in +++ b/etc/discovery.conf.in @@ -1,4 +1,4 @@ # Used for extracting default parameters for discovery # # Example: -# --transport=<trtype> --traddr=<traddr> --trsvcid=<trsvcid> --host-traddr=<host-traddr> +# --transport=<trtype> --traddr=<traddr> --trsvcid=<trsvcid> --host-traddr=<host-traddr> --host-iface=<host-iface> --- a/fabrics.c +++ b/fabrics.c @@ -62,6 +62,7 @@ const char *conarg_transport = "transpor const char *conarg_traddr = "traddr"; const char *conarg_trsvcid = "trsvcid"; const char *conarg_host_traddr = "host_traddr"; +const char *conarg_host_iface = "host_iface"; static struct config { char *nqn; @@ -69,6 +70,7 @@ static struct config { char *traddr; char *trsvcid; char *host_traddr; + char *host_iface; char *hostnqn; char *hostid; int nr_io_queues; @@ -96,6 +98,7 @@ struct connect_args { char *traddr; char *trsvcid; char *host_traddr; + char *host_iface; struct connect_args *next; struct connect_args *tail; }; @@ -317,6 +320,7 @@ static bool ctrl_matches_connectargs(cha cargs.traddr = parse_conn_arg(addr, ' ', conarg_traddr); cargs.trsvcid = parse_conn_arg(addr, ' ', conarg_trsvcid); cargs.host_traddr = parse_conn_arg(addr, ' ', conarg_host_traddr); + cargs.host_iface = parse_conn_arg(addr, ' ', conarg_host_iface); if (!strcmp(cargs.subsysnqn, NVME_DISC_SUBSYS_NAME)) { char *kato_str = nvme_get_ctrl_attr(path, "kato"), *p; @@ -348,12 +352,15 @@ static bool ctrl_matches_connectargs(cha (!strcmp(cargs.trsvcid, args->trsvcid) || !strcmp(args->trsvcid, "none")) && (!strcmp(cargs.host_traddr, args->host_traddr) || - !strcmp(args->host_traddr, "none"))) + !strcmp(args->host_traddr, "none")) && + (!strcmp(cargs.host_iface, args->host_iface) || + !strcmp(args->host_iface, "none"))) found = true; free(cargs.traddr); free(cargs.trsvcid); free(cargs.host_traddr); + free(cargs.host_iface); out: free(cargs.subsysnqn); free(cargs.transport); @@ -410,6 +417,7 @@ static struct connect_args *extract_conn cargs->traddr = parse_conn_arg(argstr, ',', conarg_traddr); cargs->trsvcid = parse_conn_arg(argstr, ',', conarg_trsvcid); cargs->host_traddr = parse_conn_arg(argstr, ',', conarg_host_traddr); + cargs->host_iface = parse_conn_arg(argstr, ',', conarg_host_iface); return cargs; } @@ -420,6 +428,7 @@ static void free_connect_args(struct con free(cargs->traddr); free(cargs->trsvcid); free(cargs->host_traddr); + free(cargs->host_iface); free(cargs); } @@ -907,6 +916,7 @@ static int build_options(char *argstr, i if (add_argument(&argstr, &max_len, "transport", cfg.transport) || add_argument(&argstr, &max_len, "traddr", cfg.traddr) || add_argument(&argstr, &max_len, "host_traddr", cfg.host_traddr) || + add_argument(&argstr, &max_len, "host_iface", cfg.host_iface) || add_argument(&argstr, &max_len, "trsvcid", cfg.trsvcid) || ((cfg.hostnqn || nvmf_hostnqn_file()) && add_argument(&argstr, &max_len, "hostnqn", cfg.hostnqn)) || @@ -1103,6 +1113,13 @@ static int connect_ctrl(struct nvmf_disc p+= len; } + if (cfg.host_iface && strcmp(cfg.host_iface, "none")) { + len = sprintf(p, ",host_iface=%s", cfg.host_iface); + if (len < 0) + return -EINVAL; + p+= len; + } + if (cfg.reconnect_delay) { len = sprintf(p, ",reconnect_delay=%d", cfg.reconnect_delay); if (len < 0) @@ -1229,6 +1246,7 @@ static bool cargs_match_found(struct nvm cargs.subsysnqn = strdup(entry->subnqn); cargs.trsvcid = strdup(entry->trsvcid); cargs.host_traddr = strdup(cfg.host_traddr ?: "\0"); + cargs.host_iface = strdup(cfg.host_iface ?: "\0"); /* check if we have a match in the discovery recursion */ while (c) { @@ -1236,7 +1254,8 @@ static bool cargs_match_found(struct nvm !strcmp(cargs.transport, c->transport) && !strcmp(cargs.traddr, c->traddr) && !strcmp(cargs.trsvcid, c->trsvcid) && - !strcmp(cargs.host_traddr, c->host_traddr)) + !strcmp(cargs.host_traddr, c->host_traddr) && + !strcmp(cargs.host_iface, c->host_iface)) return true; c = c->next; } @@ -1471,7 +1490,9 @@ int fabrics_discover(const char *desc, i OPT_LIST("transport", 't', &cfg.transport, "transport type"), OPT_LIST("traddr", 'a', &cfg.traddr, "transport address"), OPT_LIST("trsvcid", 's', &cfg.trsvcid, "transport service id (e.g. IP port)"), - OPT_LIST("host-traddr", 'w', &cfg.host_traddr, "host traddr (e.g. FC WWN's)"), + OPT_LIST("host-traddr", 'w', &cfg.host_traddr, "host traddr (e.g. FC WWN's or IP source address)"), + + OPT_LIST("host-iface", 'f', &cfg.host_iface, "host transport interface (e.g. IP eth1, enp2s0)"), OPT_LIST("hostnqn", 'q', &cfg.hostnqn, "user-defined hostnqn (if default not used)"), OPT_LIST("hostid", 'I', &cfg.hostid, "user-defined hostid (if default not used)"), OPT_LIST("raw", 'r', &cfg.raw, "raw output file"), @@ -1537,7 +1558,8 @@ int fabrics_connect(const char *desc, in OPT_LIST("nqn", 'n', &cfg.nqn, "nqn name"), OPT_LIST("traddr", 'a', &cfg.traddr, "transport address"), OPT_LIST("trsvcid", 's', &cfg.trsvcid, "transport service id (e.g. IP port)"), - OPT_LIST("host-traddr", 'w', &cfg.host_traddr, "host traddr (e.g. FC WWN's)"), + OPT_LIST("host-traddr", 'w', &cfg.host_traddr, "host traddr (e.g. FC WWN's or IP source adresso)"), + OPT_LIST("host-iface", 'f', &cfg.host_iface, "host transport interface (e.g. IP eth1, enp2s0)"), OPT_LIST("hostnqn", 'q', &cfg.hostnqn, "user-defined hostnqn"), OPT_LIST("hostid", 'I', &cfg.hostid, "user-defined hostid (if default not used)"), OPT_INT("nr-io-queues", 'i', &cfg.nr_io_queues, "number of io queues to use (default is core count)"), --- a/nvme.h +++ b/nvme.h @@ -56,6 +56,7 @@ struct nvme_ctrl { char *traddr; char *trsvcid; char *host_traddr; + char *host_iface; char *hostnqn; char *hostid;
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