| /* |
| ************************************************************************** |
| * Copyright (c) 2020, The Linux Foundation. All rights reserved. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| ************************************************************************** |
| */ |
| |
| #include "nss_tx_rx_common.h" |
| #include "nss_wifi_ext_vdev_stats.h" |
| |
| DEFINE_SPINLOCK(nss_wifi_ext_vdev_debug_lock); |
| struct nss_wifi_ext_vdev_debug nss_wifi_ext_vdev_debug_stats[NSS_WIFI_EXT_VDEV_MAX]; |
| |
| /* |
| * nss_wifi_ext_vdev_debug_str |
| * WiFi extended VAP statistics strings. |
| */ |
| struct nss_stats_info nss_wifi_ext_vdev_debug_str[NSS_WIFI_EXT_VDEV_STATS_MAX] = { |
| {"node_rx_pkts" , NSS_STATS_TYPE_COMMON}, |
| {"node_rx_bytes" , NSS_STATS_TYPE_COMMON}, |
| {"node_tx_pkts" , NSS_STATS_TYPE_COMMON}, |
| {"node_tx_bytes" , NSS_STATS_TYPE_COMMON}, |
| {"node_rx_dropped" , NSS_STATS_TYPE_DROP}, |
| {"mc_count" , NSS_STATS_TYPE_SPECIAL}, |
| {"uc_count" , NSS_STATS_TYPE_SPECIAL}, |
| {"nxt_hop_drop" , NSS_STATS_TYPE_DROP}, |
| }; |
| |
| /* |
| * WiFi extended vdev statistics APIs |
| */ |
| |
| /* |
| * nss_wifi_ext_vdev_stats_register() |
| * Register debug statistic for WiFi extended VAP. |
| */ |
| void nss_wifi_ext_vdev_stats_register(uint32_t if_num, struct net_device *netdev) |
| { |
| int i; |
| |
| spin_lock_bh(&nss_wifi_ext_vdev_debug_lock); |
| for (i = 0; i < NSS_WIFI_EXT_VDEV_MAX; i++) { |
| if (!nss_wifi_ext_vdev_debug_stats[i].valid) { |
| nss_wifi_ext_vdev_debug_stats[i].valid = true; |
| nss_wifi_ext_vdev_debug_stats[i].if_num = if_num; |
| nss_wifi_ext_vdev_debug_stats[i].if_index = netdev->ifindex; |
| break; |
| } |
| } |
| |
| spin_unlock_bh(&nss_wifi_ext_vdev_debug_lock); |
| } |
| |
| /* |
| * nss_wifi_ext_vdev_stats_unregister() |
| * Register debug statistic for WiFi extended vap. |
| */ |
| void nss_wifi_ext_vdev_stats_unregister(uint32_t if_num, struct net_device *netdev) |
| { |
| int i; |
| |
| spin_lock_bh(&nss_wifi_ext_vdev_debug_lock); |
| for (i = 0; i < NSS_WIFI_EXT_VDEV_MAX; i++) { |
| if (nss_wifi_ext_vdev_debug_stats[i].if_num == if_num) { |
| memset(&nss_wifi_ext_vdev_debug_stats[i], 0, |
| sizeof(struct nss_wifi_ext_vdev_debug)); |
| break; |
| } |
| } |
| spin_unlock_bh(&nss_wifi_ext_vdev_debug_lock); |
| } |
| |
| /* |
| * nss_wifi_ext_vdev_stats_sync() |
| * Sync function for WiFi extendev vap statistics. |
| */ |
| void nss_wifi_ext_vdev_stats_sync(struct nss_ctx_instance *nss_ctx, struct nss_wifi_ext_vdev_stats *stats_msg, |
| uint16_t if_num) |
| { |
| int i; |
| struct nss_wifi_ext_vdev_debug *s = NULL; |
| |
| NSS_VERIFY_CTX_MAGIC(nss_ctx); |
| |
| spin_lock_bh(&nss_wifi_ext_vdev_debug_lock); |
| for (i = 0; i < NSS_WIFI_EXT_VDEV_MAX; i++) { |
| if (nss_wifi_ext_vdev_debug_stats[i].if_num == if_num) { |
| s = &nss_wifi_ext_vdev_debug_stats[i]; |
| break; |
| } |
| } |
| |
| if (!s) { |
| spin_unlock_bh(&nss_wifi_ext_vdev_debug_lock); |
| nss_warning("%px: Interface:%u not found", nss_ctx, if_num); |
| return; |
| } |
| |
| s->stats[NSS_WIFI_EXT_VDEV_STATS_NODE_RX_PKTS ] += stats_msg->node_stats.rx_packets; |
| s->stats[NSS_WIFI_EXT_VDEV_STATS_NODE_RX_BYTES] += stats_msg->node_stats.rx_bytes; |
| s->stats[NSS_WIFI_EXT_VDEV_STATS_NODE_TX_PKTS] += stats_msg->node_stats.tx_packets; |
| s->stats[NSS_WIFI_EXT_VDEV_STATS_NODE_TX_BYTES] += stats_msg->node_stats.tx_bytes; |
| for (i = 0; i < NSS_MAX_NUM_PRI; i++) { |
| s->stats[NSS_WIFI_EXT_VDEV_STATS_NODE_TOTAL_DROPPED] += stats_msg->node_stats.rx_dropped[i]; |
| } |
| s->stats[NSS_WIFI_EXT_VDEV_STATS_MULTICAST_COUNT] += stats_msg->mc_count; |
| s->stats[NSS_WIFI_EXT_VDEV_STATS_UNICAST_COUNT] += stats_msg->node_stats.rx_packets - stats_msg->mc_count; |
| s->stats[NSS_WIFI_EXT_VDEV_STATS_NEXT_HOP_DROP_COUNT] += stats_msg->nxt_hop_drp; |
| spin_unlock_bh(&nss_wifi_ext_vdev_debug_lock); |
| } |
| |
| /* |
| * nss_wifi_ext_vdev_debug_get() |
| * Get WiFi extendev vap debug statitics. |
| */ |
| static void nss_wifi_ext_vdev_debug_get(struct nss_wifi_ext_vdev_debug *stats) |
| { |
| int i; |
| |
| if (!stats) { |
| nss_warning("No memory to copy WiFi extended VAP stats"); |
| return; |
| } |
| |
| spin_lock_bh(&nss_wifi_ext_vdev_debug_lock); |
| for (i = 0; i < NSS_WIFI_EXT_VDEV_MAX; i++) { |
| if (nss_wifi_ext_vdev_debug_stats[i].valid) { |
| memcpy(stats, &nss_wifi_ext_vdev_debug_stats[i], |
| sizeof(struct nss_wifi_ext_vdev_debug)); |
| stats++; |
| } |
| } |
| spin_unlock_bh(&nss_wifi_ext_vdev_debug_lock); |
| } |
| |
| /* |
| * nss_wifi_ext_vdev_read() |
| * Read WiFi extended VAP statistics |
| */ |
| static ssize_t nss_wifi_ext_vdev_stats_read(struct file *fp, char __user *ubuf, |
| size_t sz, loff_t *ppos) |
| { |
| uint32_t max_output_lines = 2 /* header and footer of the interface stats*/ |
| + (NSS_WIFI_EXT_VDEV_STATS_MAX * (NSS_WIFI_EXT_VDEV_MAX + 2)) /* Interface stats */ |
| + 2; |
| |
| size_t size_al = NSS_STATS_MAX_STR_LENGTH * max_output_lines; |
| size_t size_wr = 0; |
| size_t bytes_read = 0; |
| struct net_device *dev; |
| int id; |
| struct nss_wifi_ext_vdev_debug *wifi_ext_vdev_stats = NULL; |
| |
| char *lbuf = kzalloc(size_al, GFP_KERNEL); |
| if (unlikely(lbuf == NULL)) { |
| nss_warning("Could not allocate memory for local statistics buffer"); |
| return 0; |
| } |
| |
| wifi_ext_vdev_stats = kzalloc((sizeof(struct nss_wifi_ext_vdev_debug) * NSS_WIFI_EXT_VDEV_MAX), GFP_KERNEL); |
| if (unlikely(wifi_ext_vdev_stats == NULL)) { |
| nss_warning("Could not allocate memory for populating stats"); |
| kfree(lbuf); |
| return 0; |
| } |
| |
| /* |
| * Get all stats |
| */ |
| nss_wifi_ext_vdev_debug_get(wifi_ext_vdev_stats); |
| |
| /* |
| * WiFi extended vap stats. |
| */ |
| size_wr += nss_stats_banner(lbuf, size_wr, size_al, "WiFi extended VAP stats", NSS_STATS_SINGLE_CORE); |
| |
| for (id = 0; id < NSS_WIFI_EXT_VDEV_MAX; id++) { |
| if (!wifi_ext_vdev_stats[id].valid) { |
| continue; |
| } |
| |
| dev = dev_get_by_index(&init_net, wifi_ext_vdev_stats[id].if_index); |
| if (likely(dev)) { |
| size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| "%d. nss interface id=%d, netdevice=%s\n", |
| id, wifi_ext_vdev_stats[id].if_num, |
| dev->name); |
| dev_put(dev); |
| } else { |
| size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| "%d. nss interface id=%d\n", id, |
| wifi_ext_vdev_stats[id].if_num); |
| } |
| |
| size_wr += nss_stats_print("vdev", "debug", id |
| , nss_wifi_ext_vdev_debug_str |
| , wifi_ext_vdev_stats[id].stats |
| , NSS_WIFI_EXT_VDEV_STATS_MAX |
| , lbuf, size_wr, size_al); |
| |
| size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\n"); |
| } |
| |
| bytes_read = simple_read_from_buffer(ubuf, sz, ppos, lbuf, size_wr); |
| |
| kfree(wifi_ext_vdev_stats); |
| kfree(lbuf); |
| return bytes_read; |
| } |
| |
| /* |
| * nss_wifi_ext_vdev_ops |
| */ |
| NSS_STATS_DECLARE_FILE_OPERATIONS(wifi_ext_vdev); |
| |
| /* |
| * nss_wifi_ext_vdev_dentry_create() |
| * Create wifi extension vap statistics debug entry. |
| */ |
| void nss_wifi_ext_vdev_stats_dentry_create(void) |
| { |
| nss_stats_create_dentry("wifi_ext_vdev", &nss_wifi_ext_vdev_stats_ops); |
| } |