X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fnet%2Fbonding%2Fbond_procfs.c;fp=kernel%2Fdrivers%2Fnet%2Fbonding%2Fbond_procfs.c;h=b20b35acb47d3465063cdde30a1018321b344b56;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git diff --git a/kernel/drivers/net/bonding/bond_procfs.c b/kernel/drivers/net/bonding/bond_procfs.c new file mode 100644 index 000000000..b20b35acb --- /dev/null +++ b/kernel/drivers/net/bonding/bond_procfs.c @@ -0,0 +1,319 @@ +#include +#include +#include +#include +#include + +#include "bonding_priv.h" + +static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos) + __acquires(RCU) +{ + struct bonding *bond = seq->private; + struct list_head *iter; + struct slave *slave; + loff_t off = 0; + + rcu_read_lock(); + + if (*pos == 0) + return SEQ_START_TOKEN; + + bond_for_each_slave_rcu(bond, slave, iter) + if (++off == *pos) + return slave; + + return NULL; +} + +static void *bond_info_seq_next(struct seq_file *seq, void *v, loff_t *pos) +{ + struct bonding *bond = seq->private; + struct list_head *iter; + struct slave *slave; + bool found = false; + + ++*pos; + if (v == SEQ_START_TOKEN) + return bond_first_slave_rcu(bond); + + bond_for_each_slave_rcu(bond, slave, iter) { + if (found) + return slave; + if (slave == v) + found = true; + } + + return NULL; +} + +static void bond_info_seq_stop(struct seq_file *seq, void *v) + __releases(RCU) +{ + rcu_read_unlock(); +} + +static void bond_info_show_master(struct seq_file *seq) +{ + struct bonding *bond = seq->private; + const struct bond_opt_value *optval; + struct slave *curr, *primary; + int i; + + curr = rcu_dereference(bond->curr_active_slave); + + seq_printf(seq, "Bonding Mode: %s", + bond_mode_name(BOND_MODE(bond))); + + if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP && + bond->params.fail_over_mac) { + optval = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC, + bond->params.fail_over_mac); + seq_printf(seq, " (fail_over_mac %s)", optval->string); + } + + seq_printf(seq, "\n"); + + if (bond_mode_uses_xmit_hash(bond)) { + optval = bond_opt_get_val(BOND_OPT_XMIT_HASH, + bond->params.xmit_policy); + seq_printf(seq, "Transmit Hash Policy: %s (%d)\n", + optval->string, bond->params.xmit_policy); + } + + if (bond_uses_primary(bond)) { + primary = rcu_dereference(bond->primary_slave); + seq_printf(seq, "Primary Slave: %s", + primary ? primary->dev->name : "None"); + if (primary) { + optval = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT, + bond->params.primary_reselect); + seq_printf(seq, " (primary_reselect %s)", + optval->string); + } + + seq_printf(seq, "\nCurrently Active Slave: %s\n", + (curr) ? curr->dev->name : "None"); + } + + seq_printf(seq, "MII Status: %s\n", netif_carrier_ok(bond->dev) ? + "up" : "down"); + seq_printf(seq, "MII Polling Interval (ms): %d\n", bond->params.miimon); + seq_printf(seq, "Up Delay (ms): %d\n", + bond->params.updelay * bond->params.miimon); + seq_printf(seq, "Down Delay (ms): %d\n", + bond->params.downdelay * bond->params.miimon); + + + /* ARP information */ + if (bond->params.arp_interval > 0) { + int printed = 0; + seq_printf(seq, "ARP Polling Interval (ms): %d\n", + bond->params.arp_interval); + + seq_printf(seq, "ARP IP target/s (n.n.n.n form):"); + + for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) { + if (!bond->params.arp_targets[i]) + break; + if (printed) + seq_printf(seq, ","); + seq_printf(seq, " %pI4", &bond->params.arp_targets[i]); + printed = 1; + } + seq_printf(seq, "\n"); + } + + if (BOND_MODE(bond) == BOND_MODE_8023AD) { + struct ad_info ad_info; + + seq_puts(seq, "\n802.3ad info\n"); + seq_printf(seq, "LACP rate: %s\n", + (bond->params.lacp_fast) ? "fast" : "slow"); + seq_printf(seq, "Min links: %d\n", bond->params.min_links); + optval = bond_opt_get_val(BOND_OPT_AD_SELECT, + bond->params.ad_select); + seq_printf(seq, "Aggregator selection policy (ad_select): %s\n", + optval->string); + + if (__bond_3ad_get_active_agg_info(bond, &ad_info)) { + seq_printf(seq, "bond %s has no active aggregator\n", + bond->dev->name); + } else { + seq_printf(seq, "Active Aggregator Info:\n"); + + seq_printf(seq, "\tAggregator ID: %d\n", + ad_info.aggregator_id); + seq_printf(seq, "\tNumber of ports: %d\n", + ad_info.ports); + seq_printf(seq, "\tActor Key: %d\n", + ad_info.actor_key); + seq_printf(seq, "\tPartner Key: %d\n", + ad_info.partner_key); + seq_printf(seq, "\tPartner Mac Address: %pM\n", + ad_info.partner_system); + } + } +} + +static void bond_info_show_slave(struct seq_file *seq, + const struct slave *slave) +{ + struct bonding *bond = seq->private; + + seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name); + seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link)); + if (slave->speed == SPEED_UNKNOWN) + seq_printf(seq, "Speed: %s\n", "Unknown"); + else + seq_printf(seq, "Speed: %d Mbps\n", slave->speed); + + if (slave->duplex == DUPLEX_UNKNOWN) + seq_printf(seq, "Duplex: %s\n", "Unknown"); + else + seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half"); + + seq_printf(seq, "Link Failure Count: %u\n", + slave->link_failure_count); + + seq_printf(seq, "Permanent HW addr: %pM\n", slave->perm_hwaddr); + seq_printf(seq, "Slave queue ID: %d\n", slave->queue_id); + + if (BOND_MODE(bond) == BOND_MODE_8023AD) { + const struct port *port = &SLAVE_AD_INFO(slave)->port; + const struct aggregator *agg = port->aggregator; + + if (agg) { + seq_printf(seq, "Aggregator ID: %d\n", + agg->aggregator_identifier); + seq_printf(seq, "Actor Churn State: %s\n", + bond_3ad_churn_desc(port->sm_churn_actor_state)); + seq_printf(seq, "Partner Churn State: %s\n", + bond_3ad_churn_desc(port->sm_churn_partner_state)); + seq_printf(seq, "Actor Churned Count: %d\n", + port->churn_actor_count); + seq_printf(seq, "Partner Churned Count: %d\n", + port->churn_partner_count); + + seq_puts(seq, "details actor lacp pdu:\n"); + seq_printf(seq, " system priority: %d\n", + port->actor_system_priority); + seq_printf(seq, " port key: %d\n", + port->actor_oper_port_key); + seq_printf(seq, " port priority: %d\n", + port->actor_port_priority); + seq_printf(seq, " port number: %d\n", + port->actor_port_number); + seq_printf(seq, " port state: %d\n", + port->actor_oper_port_state); + + seq_puts(seq, "details partner lacp pdu:\n"); + seq_printf(seq, " system priority: %d\n", + port->partner_oper.system_priority); + seq_printf(seq, " oper key: %d\n", + port->partner_oper.key); + seq_printf(seq, " port priority: %d\n", + port->partner_oper.port_priority); + seq_printf(seq, " port number: %d\n", + port->partner_oper.port_number); + seq_printf(seq, " port state: %d\n", + port->partner_oper.port_state); + } else { + seq_puts(seq, "Aggregator ID: N/A\n"); + } + } +} + +static int bond_info_seq_show(struct seq_file *seq, void *v) +{ + if (v == SEQ_START_TOKEN) { + seq_printf(seq, "%s\n", bond_version); + bond_info_show_master(seq); + } else + bond_info_show_slave(seq, v); + + return 0; +} + +static const struct seq_operations bond_info_seq_ops = { + .start = bond_info_seq_start, + .next = bond_info_seq_next, + .stop = bond_info_seq_stop, + .show = bond_info_seq_show, +}; + +static int bond_info_open(struct inode *inode, struct file *file) +{ + struct seq_file *seq; + int res; + + res = seq_open(file, &bond_info_seq_ops); + if (!res) { + /* recover the pointer buried in proc_dir_entry data */ + seq = file->private_data; + seq->private = PDE_DATA(inode); + } + + return res; +} + +static const struct file_operations bond_info_fops = { + .owner = THIS_MODULE, + .open = bond_info_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +void bond_create_proc_entry(struct bonding *bond) +{ + struct net_device *bond_dev = bond->dev; + struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id); + + if (bn->proc_dir) { + bond->proc_entry = proc_create_data(bond_dev->name, + S_IRUGO, bn->proc_dir, + &bond_info_fops, bond); + if (bond->proc_entry == NULL) + netdev_warn(bond_dev, "Cannot create /proc/net/%s/%s\n", + DRV_NAME, bond_dev->name); + else + memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ); + } +} + +void bond_remove_proc_entry(struct bonding *bond) +{ + struct net_device *bond_dev = bond->dev; + struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id); + + if (bn->proc_dir && bond->proc_entry) { + remove_proc_entry(bond->proc_file_name, bn->proc_dir); + memset(bond->proc_file_name, 0, IFNAMSIZ); + bond->proc_entry = NULL; + } +} + +/* Create the bonding directory under /proc/net, if doesn't exist yet. + * Caller must hold rtnl_lock. + */ +void __net_init bond_create_proc_dir(struct bond_net *bn) +{ + if (!bn->proc_dir) { + bn->proc_dir = proc_mkdir(DRV_NAME, bn->net->proc_net); + if (!bn->proc_dir) + pr_warn("Warning: Cannot create /proc/net/%s\n", + DRV_NAME); + } +} + +/* Destroy the bonding directory under /proc/net, if empty. + * Caller must hold rtnl_lock. + */ +void __net_exit bond_destroy_proc_dir(struct bond_net *bn) +{ + if (bn->proc_dir) { + remove_proc_entry(DRV_NAME, bn->net->proc_net); + bn->proc_dir = NULL; + } +}