Radhakrishna Jiguru | 1c9b225 | 2013-08-27 23:57:48 +0530 | [diff] [blame] | 1 | /* |
| 2 | ************************************************************************** |
Selin Dag | 6d9b0c1 | 2014-11-04 18:27:21 -0800 | [diff] [blame] | 3 | * Copyright (c) 2014, The Linux Foundation. All rights reserved. |
Radhakrishna Jiguru | 1c9b225 | 2013-08-27 23:57:48 +0530 | [diff] [blame] | 4 | * Permission to use, copy, modify, and/or distribute this software for |
| 5 | * any purpose with or without fee is hereby granted, provided that the |
| 6 | * above copyright notice and this permission notice appear in all copies. |
| 7 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 8 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 9 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 10 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 11 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 12 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| 13 | * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 14 | ************************************************************************** |
| 15 | */ |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 16 | |
| 17 | /* |
| 18 | * nss_stats.c |
| 19 | * NSS stats APIs |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #include "nss_core.h" |
| 24 | |
| 25 | /* |
| 26 | * Maximum string length: |
| 27 | * This should be equal to maximum string size of any stats |
| 28 | * inclusive of stats value |
| 29 | */ |
| 30 | #define NSS_STATS_MAX_STR_LENGTH 96 |
| 31 | |
| 32 | /* |
| 33 | * Global variables/extern declarations |
| 34 | */ |
| 35 | extern struct nss_top_instance nss_top_main; |
| 36 | |
Ankit Dhanuka | a1569ce | 2014-05-13 19:58:06 +0530 | [diff] [blame] | 37 | uint64_t stats_shadow_pppoe_except[NSS_PPPOE_NUM_SESSION_PER_INTERFACE][NSS_PPPOE_EXCEPTION_EVENT_MAX]; |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 38 | |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 39 | /* |
Saurabh Misra | 09dddeb | 2014-09-30 16:38:07 -0700 | [diff] [blame] | 40 | * Private data for every file descriptor |
| 41 | */ |
| 42 | struct nss_stats_data { |
| 43 | uint32_t if_num; /**< Interface number for CAPWAP stats */ |
| 44 | }; |
| 45 | |
| 46 | /* |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 47 | * Statistics structures |
| 48 | */ |
| 49 | |
| 50 | /* |
| 51 | * nss_stats_str_ipv4 |
| 52 | * IPv4 stats strings |
| 53 | */ |
| 54 | static int8_t *nss_stats_str_ipv4[NSS_STATS_IPV4_MAX] = { |
| 55 | "rx_pkts", |
| 56 | "rx_bytes", |
| 57 | "tx_pkts", |
| 58 | "tx_bytes", |
| 59 | "create_requests", |
| 60 | "create_collisions", |
| 61 | "create_invalid_interface", |
| 62 | "destroy_requests", |
| 63 | "destroy_misses", |
| 64 | "hash_hits", |
| 65 | "hash_reorders", |
| 66 | "flushes", |
Selin Dag | 60ea2b2 | 2014-11-05 09:36:22 -0800 | [diff] [blame^] | 67 | "evictions", |
| 68 | "fragmentations" |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 69 | }; |
| 70 | |
| 71 | /* |
Selin Dag | 6d9b0c1 | 2014-11-04 18:27:21 -0800 | [diff] [blame] | 72 | * nss_stats_str_ipv4_reasm |
| 73 | * IPv4 reassembly stats strings |
| 74 | */ |
| 75 | static int8_t *nss_stats_str_ipv4_reasm[NSS_STATS_IPV4_REASM_MAX] = { |
| 76 | "evictions", |
| 77 | "alloc_fails", |
| 78 | "timeouts", |
| 79 | }; |
| 80 | |
| 81 | /* |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 82 | * nss_stats_str_ipv6 |
| 83 | * IPv6 stats strings |
| 84 | */ |
| 85 | static int8_t *nss_stats_str_ipv6[NSS_STATS_IPV6_MAX] = { |
| 86 | "rx_pkts", |
| 87 | "rx_bytes", |
| 88 | "tx_pkts", |
| 89 | "tx_bytes", |
| 90 | "create_requests", |
| 91 | "create_collisions", |
| 92 | "create_invalid_interface", |
| 93 | "destroy_requests", |
| 94 | "destroy_misses", |
| 95 | "hash_hits", |
| 96 | "hash_reorders", |
| 97 | "flushes", |
| 98 | "evictions", |
| 99 | }; |
| 100 | |
| 101 | /* |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 102 | * nss_stats_str_n2h |
| 103 | * N2H stats strings |
| 104 | */ |
| 105 | static int8_t *nss_stats_str_n2h[NSS_STATS_N2H_MAX] = { |
| 106 | "queue_dropped", |
| 107 | "ticks", |
| 108 | "worst_ticks", |
Murat Sezgin | 0c0561d | 2014-04-09 18:55:58 -0700 | [diff] [blame] | 109 | "iterations", |
Thomas Wu | 3fd8dd7 | 2014-06-11 15:57:05 -0700 | [diff] [blame] | 110 | "pbuf_ocm_alloc_fails", |
| 111 | "pbuf_ocm_free_count", |
| 112 | "pbuf_ocm_total_count", |
| 113 | "pbuf_default_alloc_fails", |
| 114 | "pbuf_default_free_count", |
| 115 | "pbuf_default_total_count", |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 116 | "payload_fails" |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 117 | }; |
| 118 | |
| 119 | /* |
| 120 | * nss_stats_str_drv |
| 121 | * Host driver stats strings |
| 122 | */ |
| 123 | static int8_t *nss_stats_str_drv[NSS_STATS_DRV_MAX] = { |
| 124 | "nbuf_alloc_errors", |
| 125 | "tx_queue_full[0]", |
| 126 | "tx_queue_full[1]", |
| 127 | "tx_buffers_empty", |
| 128 | "tx_buffers_pkt", |
| 129 | "tx_buffers_cmd", |
| 130 | "tx_buffers_crypto", |
| 131 | "rx_buffers_empty", |
| 132 | "rx_buffers_pkt", |
| 133 | "rx_buffers_cmd_resp", |
| 134 | "rx_buffers_status_sync", |
| 135 | "rx_buffers_crypto", |
| 136 | "rx_buffers_virtual" |
| 137 | }; |
| 138 | |
| 139 | /* |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 140 | * nss_stats_str_pppoe |
| 141 | * PPPoE stats strings |
| 142 | */ |
| 143 | static int8_t *nss_stats_str_pppoe[NSS_STATS_PPPOE_MAX] = { |
| 144 | "create_requests", |
| 145 | "create_failures", |
| 146 | "destroy_requests", |
| 147 | "destroy_misses" |
| 148 | }; |
| 149 | |
| 150 | /* |
| 151 | * nss_stats_str_gmac |
| 152 | * GMAC stats strings |
| 153 | */ |
| 154 | static int8_t *nss_stats_str_gmac[NSS_STATS_GMAC_MAX] = { |
| 155 | "ticks", |
| 156 | "worst_ticks", |
| 157 | "iterations" |
| 158 | }; |
| 159 | |
| 160 | /* |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 161 | * nss_stats_str_node |
| 162 | * Interface stats strings per node |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 163 | */ |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 164 | static int8_t *nss_stats_str_node[NSS_STATS_NODE_MAX] = { |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 165 | "rx_packets", |
| 166 | "rx_bytes", |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 167 | "rx_dropped", |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 168 | "tx_packets", |
| 169 | "tx_bytes" |
| 170 | }; |
| 171 | |
| 172 | /* |
Murat Sezgin | 99dab64 | 2014-08-28 14:40:34 -0700 | [diff] [blame] | 173 | * nss_stats_str_eth_rx |
| 174 | * eth_rx stats strings |
| 175 | */ |
| 176 | static int8_t *nss_stats_str_eth_rx[NSS_STATS_ETH_RX_MAX] = { |
| 177 | "ticks", |
| 178 | "worst_ticks", |
| 179 | "iterations" |
| 180 | }; |
| 181 | |
| 182 | /* |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 183 | * nss_stats_str_if_exception_unknown |
| 184 | * Interface stats strings for unknown exceptions |
| 185 | */ |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 186 | static int8_t *nss_stats_str_if_exception_eth_rx[NSS_EXCEPTION_EVENT_ETH_RX_MAX] = { |
| 187 | "UNKNOWN_L3_PROTOCOL" |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 188 | }; |
| 189 | |
| 190 | /* |
| 191 | * nss_stats_str_if_exception_ipv4 |
| 192 | * Interface stats strings for ipv4 exceptions |
| 193 | */ |
| 194 | static int8_t *nss_stats_str_if_exception_ipv4[NSS_EXCEPTION_EVENT_IPV4_MAX] = { |
| 195 | "IPV4_ICMP_HEADER_INCOMPLETE", |
| 196 | "IPV4_ICMP_UNHANDLED_TYPE", |
| 197 | "IPV4_ICMP_IPV4_HEADER_INCOMPLETE", |
| 198 | "IPV4_ICMP_IPV4_UDP_HEADER_INCOMPLETE", |
| 199 | "IPV4_ICMP_IPV4_TCP_HEADER_INCOMPLETE", |
| 200 | "IPV4_ICMP_IPV4_UNKNOWN_PROTOCOL", |
| 201 | "IPV4_ICMP_NO_ICME", |
| 202 | "IPV4_ICMP_FLUSH_TO_HOST", |
| 203 | "IPV4_TCP_HEADER_INCOMPLETE", |
| 204 | "IPV4_TCP_NO_ICME", |
| 205 | "IPV4_TCP_IP_OPTION", |
| 206 | "IPV4_TCP_IP_FRAGMENT", |
| 207 | "IPV4_TCP_SMALL_TTL", |
| 208 | "IPV4_TCP_NEEDS_FRAGMENTATION", |
| 209 | "IPV4_TCP_FLAGS", |
| 210 | "IPV4_TCP_SEQ_EXCEEDS_RIGHT_EDGE", |
| 211 | "IPV4_TCP_SMALL_DATA_OFFS", |
| 212 | "IPV4_TCP_BAD_SACK", |
| 213 | "IPV4_TCP_BIG_DATA_OFFS", |
| 214 | "IPV4_TCP_SEQ_BEFORE_LEFT_EDGE", |
| 215 | "IPV4_TCP_ACK_EXCEEDS_RIGHT_EDGE", |
| 216 | "IPV4_TCP_ACK_BEFORE_LEFT_EDGE", |
| 217 | "IPV4_UDP_HEADER_INCOMPLETE", |
| 218 | "IPV4_UDP_NO_ICME", |
| 219 | "IPV4_UDP_IP_OPTION", |
| 220 | "IPV4_UDP_IP_FRAGMENT", |
| 221 | "IPV4_UDP_SMALL_TTL", |
| 222 | "IPV4_UDP_NEEDS_FRAGMENTATION", |
| 223 | "IPV4_WRONG_TARGET_MAC", |
| 224 | "IPV4_HEADER_INCOMPLETE", |
| 225 | "IPV4_BAD_TOTAL_LENGTH", |
| 226 | "IPV4_BAD_CHECKSUM", |
| 227 | "IPV4_NON_INITIAL_FRAGMENT", |
| 228 | "IPV4_DATAGRAM_INCOMPLETE", |
| 229 | "IPV4_OPTIONS_INCOMPLETE", |
Radha krishna Simha Jiguru | 59a1a1c | 2014-01-27 18:29:40 +0530 | [diff] [blame] | 230 | "IPV4_UNKNOWN_PROTOCOL", |
| 231 | "IPV4_ESP_HEADER_INCOMPLETE", |
| 232 | "IPV4_ESP_NO_ICME", |
| 233 | "IPV4_ESP_IP_OPTION", |
| 234 | "IPV4_ESP_IP_FRAGMENT", |
| 235 | "IPV4_ESP_SMALL_TTL", |
| 236 | "IPV4_ESP_NEEDS_FRAGMENTATION", |
| 237 | "IPV4_INGRESS_VID_MISMATCH", |
Thomas Wu | 8d6f4b2 | 2014-06-09 14:46:18 -0700 | [diff] [blame] | 238 | "IPV4_INGRESS_VID_MISSING", |
Radha krishna Simha Jiguru | 59a1a1c | 2014-01-27 18:29:40 +0530 | [diff] [blame] | 239 | "IPV4_6RD_NO_ICME", |
| 240 | "IPV4_6RD_IP_OPTION", |
| 241 | "IPV4_6RD_IP_FRAGMENT", |
Murat Sezgin | 0c0561d | 2014-04-09 18:55:58 -0700 | [diff] [blame] | 242 | "IPV4_6RD_NEEDS_FRAGMENTATION", |
| 243 | "IPV4_DSCP_MARKING_MISMATCH", |
Murat Sezgin | 7c5956a | 2014-05-12 09:59:51 -0700 | [diff] [blame] | 244 | "IPV4_VLAN_MARKING_MISMATCH", |
Thomas Wu | 8d6f4b2 | 2014-06-09 14:46:18 -0700 | [diff] [blame] | 245 | "IPV4_INTERFACE_MISMATCH", |
Radha krishna Simha Jiguru | 00cfe56 | 2014-10-21 16:22:12 +0530 | [diff] [blame] | 246 | "IPV4_GRE_HEADER_INCOMPLETE", |
| 247 | "IPV4_GRE_NO_ICME", |
| 248 | "IPV4_GRE_IP_OPTION", |
| 249 | "IPV4_GRE_IP_FRAGMENT", |
| 250 | "IPV4_GRE_SMALL_TTL", |
| 251 | "IPV4_GRE_NEEDS_FRAGMENTATION", |
Selin Dag | 60ea2b2 | 2014-11-05 09:36:22 -0800 | [diff] [blame^] | 252 | "IPV4_FRAG_DF_SET", |
| 253 | "IPV4_FRAG_FAIL", |
Thomas Wu | 8d6f4b2 | 2014-06-09 14:46:18 -0700 | [diff] [blame] | 254 | "IPV4_DESTROY" |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 255 | }; |
| 256 | |
| 257 | /* |
| 258 | * nss_stats_str_if_exception_ipv6 |
| 259 | * Interface stats strings for ipv6 exceptions |
| 260 | */ |
| 261 | static int8_t *nss_stats_str_if_exception_ipv6[NSS_EXCEPTION_EVENT_IPV6_MAX] = { |
| 262 | "IPV6_ICMP_HEADER_INCOMPLETE", |
| 263 | "IPV6_ICMP_UNHANDLED_TYPE", |
| 264 | "IPV6_ICMP_IPV6_HEADER_INCOMPLETE", |
| 265 | "IPV6_ICMP_IPV6_UDP_HEADER_INCOMPLETE", |
| 266 | "IPV6_ICMP_IPV6_TCP_HEADER_INCOMPLETE", |
| 267 | "IPV6_ICMP_IPV6_UNKNOWN_PROTOCOL", |
| 268 | "IPV6_ICMP_NO_ICME", |
| 269 | "IPV6_ICMP_FLUSH_TO_HOST", |
| 270 | "IPV6_TCP_HEADER_INCOMPLETE", |
| 271 | "IPV6_TCP_NO_ICME", |
| 272 | "IPV6_TCP_SMALL_HOP_LIMIT", |
| 273 | "IPV6_TCP_NEEDS_FRAGMENTATION", |
| 274 | "IPV6_TCP_FLAGS", |
| 275 | "IPV6_TCP_SEQ_EXCEEDS_RIGHT_EDGE", |
| 276 | "IPV6_TCP_SMALL_DATA_OFFS", |
| 277 | "IPV6_TCP_BAD_SACK", |
| 278 | "IPV6_TCP_BIG_DATA_OFFS", |
| 279 | "IPV6_TCP_SEQ_BEFORE_LEFT_EDGE", |
| 280 | "IPV6_TCP_ACK_EXCEEDS_RIGHT_EDGE", |
| 281 | "IPV6_TCP_ACK_BEFORE_LEFT_EDGE", |
| 282 | "IPV6_UDP_HEADER_INCOMPLETE", |
| 283 | "IPV6_UDP_NO_ICME", |
| 284 | "IPV6_UDP_SMALL_HOP_LIMIT", |
| 285 | "IPV6_UDP_NEEDS_FRAGMENTATION", |
| 286 | "IPV6_WRONG_TARGET_MAC", |
| 287 | "IPV6_HEADER_INCOMPLETE", |
Radha krishna Simha Jiguru | 59a1a1c | 2014-01-27 18:29:40 +0530 | [diff] [blame] | 288 | "IPV6_UNKNOWN_PROTOCOL", |
Murat Sezgin | 0c0561d | 2014-04-09 18:55:58 -0700 | [diff] [blame] | 289 | "IPV6_INGRESS_VID_MISMATCH", |
Thomas Wu | 8d6f4b2 | 2014-06-09 14:46:18 -0700 | [diff] [blame] | 290 | "IPV6_INGRESS_VID_MISSING", |
Murat Sezgin | 0c0561d | 2014-04-09 18:55:58 -0700 | [diff] [blame] | 291 | "IPV6_DSCP_MARKING_MISMATCH", |
| 292 | "IPV6_VLAN_MARKING_MISMATCH", |
Thomas Wu | 8d6f4b2 | 2014-06-09 14:46:18 -0700 | [diff] [blame] | 293 | "IPV6_INTERFACE_MISMATCH", |
| 294 | "IPV6_DESTROY" |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 295 | }; |
| 296 | |
| 297 | /* |
| 298 | * nss_stats_str_if_exception_pppoe |
| 299 | * Interface stats strings for PPPoE exceptions |
| 300 | */ |
Ankit Dhanuka | a1569ce | 2014-05-13 19:58:06 +0530 | [diff] [blame] | 301 | static int8_t *nss_stats_str_if_exception_pppoe[NSS_PPPOE_EXCEPTION_EVENT_MAX] = { |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 302 | "PPPOE_WRONG_VERSION_OR_TYPE", |
| 303 | "PPPOE_WRONG_CODE", |
| 304 | "PPPOE_HEADER_INCOMPLETE", |
Murat Sezgin | 7c5956a | 2014-05-12 09:59:51 -0700 | [diff] [blame] | 305 | "PPPOE_UNSUPPORTED_PPP_PROTOCOL", |
| 306 | "PPPOE_INTERFACE_MISMATCH" |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 307 | }; |
| 308 | |
| 309 | /* |
| 310 | * nss_stats_ipv4_read() |
| 311 | * Read IPV4 stats |
| 312 | */ |
| 313 | static ssize_t nss_stats_ipv4_read(struct file *fp, char __user *ubuf, size_t sz, loff_t *ppos) |
| 314 | { |
| 315 | int32_t i; |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 316 | /* |
| 317 | * max output lines = #stats + start tag line + end tag line + three blank lines |
| 318 | */ |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 319 | uint32_t max_output_lines = (NSS_STATS_NODE_MAX + 2) + (NSS_STATS_IPV4_MAX + 3) + (NSS_EXCEPTION_EVENT_IPV4_MAX + 3) + 5; |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 320 | size_t size_al = NSS_STATS_MAX_STR_LENGTH * max_output_lines; |
| 321 | size_t size_wr = 0; |
| 322 | ssize_t bytes_read = 0; |
| 323 | uint64_t *stats_shadow; |
| 324 | |
| 325 | char *lbuf = kzalloc(size_al, GFP_KERNEL); |
| 326 | if (unlikely(lbuf == NULL)) { |
| 327 | nss_warning("Could not allocate memory for local statistics buffer"); |
| 328 | return 0; |
| 329 | } |
| 330 | |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 331 | /* |
| 332 | * Note: The assumption here is that exception event count is larger than other statistics count for IPv4 |
| 333 | */ |
| 334 | stats_shadow = kzalloc(NSS_EXCEPTION_EVENT_IPV4_MAX * 8, GFP_KERNEL); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 335 | if (unlikely(stats_shadow == NULL)) { |
| 336 | nss_warning("Could not allocate memory for local shadow buffer"); |
| 337 | return 0; |
| 338 | } |
| 339 | |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 340 | size_wr = scnprintf(lbuf, size_al, "ipv4 stats start:\n\n"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 341 | |
| 342 | /* |
| 343 | * Common node stats |
| 344 | */ |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 345 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "common node stats:\n\n"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 346 | spin_lock_bh(&nss_top_main.stats_lock); |
| 347 | for (i = 0; (i < NSS_STATS_NODE_MAX); i++) { |
| 348 | stats_shadow[i] = nss_top_main.stats_node[NSS_IPV4_RX_INTERFACE][i]; |
| 349 | } |
| 350 | |
| 351 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 352 | |
| 353 | for (i = 0; (i < NSS_STATS_NODE_MAX); i++) { |
| 354 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 355 | "%s = %llu\n", nss_stats_str_node[i], stats_shadow[i]); |
| 356 | } |
| 357 | |
| 358 | /* |
| 359 | * IPv4 node stats |
| 360 | */ |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 361 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\nipv4 node stats:\n\n"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 362 | |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 363 | spin_lock_bh(&nss_top_main.stats_lock); |
| 364 | for (i = 0; (i < NSS_STATS_IPV4_MAX); i++) { |
| 365 | stats_shadow[i] = nss_top_main.stats_ipv4[i]; |
| 366 | } |
| 367 | |
| 368 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 369 | |
| 370 | for (i = 0; (i < NSS_STATS_IPV4_MAX); i++) { |
| 371 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 372 | "%s = %llu\n", nss_stats_str_ipv4[i], stats_shadow[i]); |
| 373 | } |
| 374 | |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 375 | /* |
| 376 | * Exception stats |
| 377 | */ |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 378 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\nipv4 exception stats:\n\n"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 379 | |
| 380 | spin_lock_bh(&nss_top_main.stats_lock); |
| 381 | for (i = 0; (i < NSS_EXCEPTION_EVENT_IPV4_MAX); i++) { |
| 382 | stats_shadow[i] = nss_top_main.stats_if_exception_ipv4[i]; |
| 383 | } |
| 384 | |
| 385 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 386 | |
| 387 | for (i = 0; (i < NSS_EXCEPTION_EVENT_IPV4_MAX); i++) { |
| 388 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 389 | "%s = %llu\n", nss_stats_str_if_exception_ipv4[i], stats_shadow[i]); |
| 390 | } |
| 391 | |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 392 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\nipv4 stats end\n\n"); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 393 | bytes_read = simple_read_from_buffer(ubuf, sz, ppos, lbuf, strlen(lbuf)); |
| 394 | kfree(lbuf); |
| 395 | kfree(stats_shadow); |
| 396 | |
| 397 | return bytes_read; |
| 398 | } |
| 399 | |
| 400 | /* |
Selin Dag | 6d9b0c1 | 2014-11-04 18:27:21 -0800 | [diff] [blame] | 401 | * nss_stats_ipv4_reasm_read() |
| 402 | * Read IPV4 reassembly stats |
| 403 | */ |
| 404 | static ssize_t nss_stats_ipv4_reasm_read(struct file *fp, char __user *ubuf, size_t sz, loff_t *ppos) |
| 405 | { |
| 406 | int32_t i; |
| 407 | /* |
| 408 | * max output lines = #stats + start tag line + end tag line + three blank lines |
| 409 | */ |
| 410 | uint32_t max_output_lines = (NSS_STATS_NODE_MAX + 2) + (NSS_STATS_IPV4_REASM_MAX + 3) + 5; |
| 411 | size_t size_al = NSS_STATS_MAX_STR_LENGTH * max_output_lines; |
| 412 | size_t size_wr = 0; |
| 413 | ssize_t bytes_read = 0; |
| 414 | uint64_t *stats_shadow; |
| 415 | |
| 416 | char *lbuf = kzalloc(size_al, GFP_KERNEL); |
| 417 | if (unlikely(lbuf == NULL)) { |
| 418 | nss_warning("Could not allocate memory for local statistics buffer"); |
| 419 | return 0; |
| 420 | } |
| 421 | |
| 422 | stats_shadow = kzalloc(NSS_STATS_IPV4_REASM_MAX * 8, GFP_KERNEL); |
| 423 | if (unlikely(stats_shadow == NULL)) { |
| 424 | nss_warning("Could not allocate memory for local shadow buffer"); |
| 425 | return 0; |
| 426 | } |
| 427 | |
| 428 | size_wr = scnprintf(lbuf, size_al, "ipv4 reasm stats start:\n\n"); |
| 429 | |
| 430 | /* |
| 431 | * Common node stats |
| 432 | */ |
| 433 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "common node stats:\n\n"); |
| 434 | spin_lock_bh(&nss_top_main.stats_lock); |
| 435 | for (i = 0; (i < NSS_STATS_NODE_MAX); i++) { |
| 436 | stats_shadow[i] = nss_top_main.stats_node[NSS_IPV4_REASM_INTERFACE][i]; |
| 437 | } |
| 438 | |
| 439 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 440 | |
| 441 | for (i = 0; (i < NSS_STATS_NODE_MAX); i++) { |
| 442 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 443 | "%s = %llu\n", nss_stats_str_node[i], stats_shadow[i]); |
| 444 | } |
| 445 | |
| 446 | /* |
| 447 | * IPv4 reasm node stats |
| 448 | */ |
| 449 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\nipv4 reasm node stats:\n\n"); |
| 450 | |
| 451 | spin_lock_bh(&nss_top_main.stats_lock); |
| 452 | for (i = 0; (i < NSS_STATS_IPV4_REASM_MAX); i++) { |
| 453 | stats_shadow[i] = nss_top_main.stats_ipv4_reasm[i]; |
| 454 | } |
| 455 | |
| 456 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 457 | |
| 458 | for (i = 0; (i < NSS_STATS_IPV4_REASM_MAX); i++) { |
| 459 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 460 | "%s = %llu\n", nss_stats_str_ipv4_reasm[i], stats_shadow[i]); |
| 461 | } |
| 462 | |
| 463 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\nipv4 reasm stats end\n\n"); |
| 464 | bytes_read = simple_read_from_buffer(ubuf, sz, ppos, lbuf, strlen(lbuf)); |
| 465 | kfree(lbuf); |
| 466 | kfree(stats_shadow); |
| 467 | |
| 468 | return bytes_read; |
| 469 | } |
| 470 | |
| 471 | /* |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 472 | * nss_stats_ipv6_read() |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 473 | * Read IPV6 stats |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 474 | */ |
| 475 | static ssize_t nss_stats_ipv6_read(struct file *fp, char __user *ubuf, size_t sz, loff_t *ppos) |
| 476 | { |
| 477 | int32_t i; |
| 478 | |
| 479 | /* |
| 480 | * max output lines = #stats + start tag line + end tag line + three blank lines |
| 481 | */ |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 482 | uint32_t max_output_lines = (NSS_STATS_NODE_MAX + 2) + (NSS_STATS_IPV6_MAX + 3) + (NSS_EXCEPTION_EVENT_IPV6_MAX + 3) + 5; |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 483 | size_t size_al = NSS_STATS_MAX_STR_LENGTH * max_output_lines; |
| 484 | size_t size_wr = 0; |
| 485 | ssize_t bytes_read = 0; |
| 486 | uint64_t *stats_shadow; |
| 487 | |
| 488 | char *lbuf = kzalloc(size_al, GFP_KERNEL); |
| 489 | if (unlikely(lbuf == NULL)) { |
| 490 | nss_warning("Could not allocate memory for local statistics buffer"); |
| 491 | return 0; |
| 492 | } |
| 493 | |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 494 | /* |
| 495 | * Note: The assumption here is that exception event count is larger than other statistics count for IPv4 |
| 496 | */ |
| 497 | stats_shadow = kzalloc(NSS_EXCEPTION_EVENT_IPV6_MAX * 8, GFP_KERNEL); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 498 | if (unlikely(stats_shadow == NULL)) { |
| 499 | nss_warning("Could not allocate memory for local shadow buffer"); |
| 500 | return 0; |
| 501 | } |
| 502 | |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 503 | size_wr = scnprintf(lbuf, size_al, "ipv6 stats start:\n\n"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 504 | |
| 505 | /* |
| 506 | * Common node stats |
| 507 | */ |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 508 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "common node stats:\n\n"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 509 | spin_lock_bh(&nss_top_main.stats_lock); |
| 510 | for (i = 0; (i < NSS_STATS_NODE_MAX); i++) { |
| 511 | stats_shadow[i] = nss_top_main.stats_node[NSS_IPV6_RX_INTERFACE][i]; |
| 512 | } |
| 513 | |
| 514 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 515 | |
| 516 | for (i = 0; (i < NSS_STATS_NODE_MAX); i++) { |
| 517 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 518 | "%s = %llu\n", nss_stats_str_node[i], stats_shadow[i]); |
| 519 | } |
| 520 | |
| 521 | /* |
| 522 | * IPv6 node stats |
| 523 | */ |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 524 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\nipv6 node stats:\n\n"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 525 | |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 526 | spin_lock_bh(&nss_top_main.stats_lock); |
| 527 | for (i = 0; (i < NSS_STATS_IPV6_MAX); i++) { |
| 528 | stats_shadow[i] = nss_top_main.stats_ipv6[i]; |
| 529 | } |
| 530 | |
| 531 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 532 | |
| 533 | for (i = 0; (i < NSS_STATS_IPV6_MAX); i++) { |
| 534 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 535 | "%s = %llu\n", nss_stats_str_ipv6[i], stats_shadow[i]); |
| 536 | } |
| 537 | |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 538 | /* |
| 539 | * Exception stats |
| 540 | */ |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 541 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\nipv6 exception stats:\n\n"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 542 | |
| 543 | spin_lock_bh(&nss_top_main.stats_lock); |
| 544 | for (i = 0; (i < NSS_EXCEPTION_EVENT_IPV6_MAX); i++) { |
| 545 | stats_shadow[i] = nss_top_main.stats_if_exception_ipv6[i]; |
| 546 | } |
| 547 | |
| 548 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 549 | |
| 550 | for (i = 0; (i < NSS_EXCEPTION_EVENT_IPV6_MAX); i++) { |
| 551 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 552 | "%s = %llu\n", nss_stats_str_if_exception_ipv6[i], stats_shadow[i]); |
| 553 | } |
| 554 | |
| 555 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr,"\nipv6 stats end\n\n"); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 556 | bytes_read = simple_read_from_buffer(ubuf, sz, ppos, lbuf, strlen(lbuf)); |
| 557 | kfree(lbuf); |
| 558 | kfree(stats_shadow); |
| 559 | |
| 560 | return bytes_read; |
| 561 | } |
| 562 | |
| 563 | /* |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 564 | * nss_stats_eth_rx_read() |
| 565 | * Read ETH_RX stats |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 566 | */ |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 567 | static ssize_t nss_stats_eth_rx_read(struct file *fp, char __user *ubuf, size_t sz, loff_t *ppos) |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 568 | { |
| 569 | int32_t i; |
| 570 | |
| 571 | /* |
| 572 | * max output lines = #stats + start tag line + end tag line + three blank lines |
| 573 | */ |
Murat Sezgin | 99dab64 | 2014-08-28 14:40:34 -0700 | [diff] [blame] | 574 | uint32_t max_output_lines = (NSS_STATS_NODE_MAX + 2) + (NSS_STATS_ETH_RX_MAX + 3) + (NSS_EXCEPTION_EVENT_ETH_RX_MAX + 3) + 5; |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 575 | size_t size_al = NSS_STATS_MAX_STR_LENGTH * max_output_lines; |
| 576 | size_t size_wr = 0; |
| 577 | ssize_t bytes_read = 0; |
| 578 | uint64_t *stats_shadow; |
| 579 | |
| 580 | char *lbuf = kzalloc(size_al, GFP_KERNEL); |
| 581 | if (unlikely(lbuf == NULL)) { |
| 582 | nss_warning("Could not allocate memory for local statistics buffer"); |
| 583 | return 0; |
| 584 | } |
| 585 | |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 586 | /* |
| 587 | * Note: The assumption here is that we do not have more than 64 stats |
| 588 | */ |
| 589 | stats_shadow = kzalloc(64 * 8, GFP_KERNEL); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 590 | if (unlikely(stats_shadow == NULL)) { |
| 591 | nss_warning("Could not allocate memory for local shadow buffer"); |
| 592 | return 0; |
| 593 | } |
| 594 | |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 595 | size_wr = scnprintf(lbuf, size_al,"eth_rx stats start:\n\n"); |
| 596 | |
| 597 | /* |
| 598 | * Common node stats |
| 599 | */ |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 600 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "common node stats:\n\n"); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 601 | spin_lock_bh(&nss_top_main.stats_lock); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 602 | for (i = 0; (i < NSS_STATS_NODE_MAX); i++) { |
| 603 | stats_shadow[i] = nss_top_main.stats_node[NSS_ETH_RX_INTERFACE][i]; |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 604 | } |
| 605 | |
| 606 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 607 | |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 608 | for (i = 0; (i < NSS_STATS_NODE_MAX); i++) { |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 609 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 610 | "%s = %llu\n", nss_stats_str_node[i], stats_shadow[i]); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 611 | } |
| 612 | |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 613 | /* |
Murat Sezgin | 99dab64 | 2014-08-28 14:40:34 -0700 | [diff] [blame] | 614 | * eth_rx node stats |
| 615 | */ |
| 616 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\neth_rx node stats:\n\n"); |
| 617 | spin_lock_bh(&nss_top_main.stats_lock); |
| 618 | for (i = 0; (i < NSS_STATS_ETH_RX_MAX); i++) { |
| 619 | stats_shadow[i] = nss_top_main.stats_eth_rx[i]; |
| 620 | } |
| 621 | |
| 622 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 623 | |
| 624 | for (i = 0; (i < NSS_STATS_ETH_RX_MAX); i++) { |
| 625 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 626 | "%s = %llu\n", nss_stats_str_eth_rx[i], stats_shadow[i]); |
| 627 | } |
| 628 | |
| 629 | /* |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 630 | * Exception stats |
| 631 | */ |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 632 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\neth_rx exception stats:\n\n"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 633 | |
| 634 | spin_lock_bh(&nss_top_main.stats_lock); |
| 635 | for (i = 0; (i < NSS_EXCEPTION_EVENT_ETH_RX_MAX); i++) { |
| 636 | stats_shadow[i] = nss_top_main.stats_if_exception_eth_rx[i]; |
| 637 | } |
| 638 | |
| 639 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 640 | |
| 641 | for (i = 0; (i < NSS_EXCEPTION_EVENT_ETH_RX_MAX); i++) { |
| 642 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 643 | "%s = %llu\n", nss_stats_str_if_exception_eth_rx[i], stats_shadow[i]); |
| 644 | } |
| 645 | |
| 646 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr,"\neth_rx stats end\n\n"); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 647 | bytes_read = simple_read_from_buffer(ubuf, sz, ppos, lbuf, strlen(lbuf)); |
| 648 | kfree(lbuf); |
| 649 | kfree(stats_shadow); |
| 650 | |
| 651 | return bytes_read; |
| 652 | } |
| 653 | |
| 654 | /* |
| 655 | * nss_stats_n2h_read() |
| 656 | * Read N2H stats |
| 657 | */ |
| 658 | static ssize_t nss_stats_n2h_read(struct file *fp, char __user *ubuf, size_t sz, loff_t *ppos) |
| 659 | { |
| 660 | int32_t i; |
| 661 | |
| 662 | /* |
| 663 | * max output lines = #stats + start tag line + end tag line + three blank lines |
| 664 | */ |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 665 | uint32_t max_output_lines = (NSS_STATS_NODE_MAX + 2) + (NSS_STATS_N2H_MAX + 3) + 5; |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 666 | size_t size_al = NSS_STATS_MAX_STR_LENGTH * max_output_lines; |
| 667 | size_t size_wr = 0; |
| 668 | ssize_t bytes_read = 0; |
| 669 | uint64_t *stats_shadow; |
Murat Sezgin | 0c0561d | 2014-04-09 18:55:58 -0700 | [diff] [blame] | 670 | int max = NSS_STATS_N2H_MAX - NSS_STATS_NODE_MAX; |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 671 | |
| 672 | char *lbuf = kzalloc(size_al, GFP_KERNEL); |
| 673 | if (unlikely(lbuf == NULL)) { |
| 674 | nss_warning("Could not allocate memory for local statistics buffer"); |
| 675 | return 0; |
| 676 | } |
| 677 | |
| 678 | stats_shadow = kzalloc(NSS_STATS_N2H_MAX * 8, GFP_KERNEL); |
| 679 | if (unlikely(stats_shadow == NULL)) { |
| 680 | nss_warning("Could not allocate memory for local shadow buffer"); |
| 681 | return 0; |
| 682 | } |
| 683 | |
| 684 | size_wr = scnprintf(lbuf, size_al, "n2h stats start:\n\n"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 685 | |
| 686 | /* |
| 687 | * Common node stats |
| 688 | */ |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 689 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "common node stats:\n\n"); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 690 | spin_lock_bh(&nss_top_main.stats_lock); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 691 | for (i = 0; (i < NSS_STATS_NODE_MAX); i++) { |
| 692 | stats_shadow[i] = nss_top_main.nss[0].stats_n2h[i]; |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 693 | } |
| 694 | |
| 695 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 696 | |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 697 | for (i = 0; (i < NSS_STATS_NODE_MAX); i++) { |
| 698 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 699 | "%s = %llu\n", nss_stats_str_node[i], stats_shadow[i]); |
| 700 | } |
| 701 | |
| 702 | /* |
| 703 | * N2H node stats |
| 704 | */ |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 705 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\nn2h node stats:\n\n"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 706 | spin_lock_bh(&nss_top_main.stats_lock); |
| 707 | for (i = NSS_STATS_NODE_MAX; (i < NSS_STATS_N2H_MAX); i++) { |
| 708 | stats_shadow[i] = nss_top_main.nss[0].stats_n2h[i]; |
| 709 | } |
| 710 | |
| 711 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 712 | |
Murat Sezgin | 0c0561d | 2014-04-09 18:55:58 -0700 | [diff] [blame] | 713 | for (i = 0; i < max; i++) { |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 714 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
Murat Sezgin | 0c0561d | 2014-04-09 18:55:58 -0700 | [diff] [blame] | 715 | "%s = %llu\n", nss_stats_str_n2h[i], stats_shadow[i + NSS_STATS_NODE_MAX]); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 716 | } |
| 717 | |
| 718 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\nn2h stats end\n\n"); |
| 719 | bytes_read = simple_read_from_buffer(ubuf, sz, ppos, lbuf, strlen(lbuf)); |
| 720 | kfree(lbuf); |
| 721 | kfree(stats_shadow); |
| 722 | |
| 723 | return bytes_read; |
| 724 | } |
| 725 | |
| 726 | /* |
| 727 | * nss_stats_drv_read() |
| 728 | * Read HLOS driver stats |
| 729 | */ |
| 730 | static ssize_t nss_stats_drv_read(struct file *fp, char __user *ubuf, size_t sz, loff_t *ppos) |
| 731 | { |
| 732 | int32_t i; |
| 733 | |
| 734 | /* |
| 735 | * max output lines = #stats + start tag line + end tag line + three blank lines |
| 736 | */ |
| 737 | uint32_t max_output_lines = NSS_STATS_DRV_MAX + 5; |
| 738 | size_t size_al = NSS_STATS_MAX_STR_LENGTH * max_output_lines; |
| 739 | size_t size_wr = 0; |
| 740 | ssize_t bytes_read = 0; |
| 741 | uint64_t *stats_shadow; |
| 742 | |
| 743 | char *lbuf = kzalloc(size_al, GFP_KERNEL); |
| 744 | if (unlikely(lbuf == NULL)) { |
| 745 | nss_warning("Could not allocate memory for local statistics buffer"); |
| 746 | return 0; |
| 747 | } |
| 748 | |
| 749 | stats_shadow = kzalloc(NSS_STATS_DRV_MAX * 8, GFP_KERNEL); |
| 750 | if (unlikely(stats_shadow == NULL)) { |
| 751 | nss_warning("Could not allocate memory for local shadow buffer"); |
| 752 | return 0; |
| 753 | } |
| 754 | |
| 755 | size_wr = scnprintf(lbuf, size_al, "drv stats start:\n\n"); |
| 756 | spin_lock_bh(&nss_top_main.stats_lock); |
| 757 | for (i = 0; (i < NSS_STATS_DRV_MAX); i++) { |
| 758 | stats_shadow[i] = nss_top_main.stats_drv[i]; |
| 759 | } |
| 760 | |
| 761 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 762 | |
| 763 | for (i = 0; (i < NSS_STATS_DRV_MAX); i++) { |
| 764 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 765 | "%s = %llu\n", nss_stats_str_drv[i], stats_shadow[i]); |
| 766 | } |
| 767 | |
| 768 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\ndrv stats end\n\n"); |
| 769 | bytes_read = simple_read_from_buffer(ubuf, sz, ppos, lbuf, strlen(lbuf)); |
| 770 | kfree(lbuf); |
| 771 | kfree(stats_shadow); |
| 772 | |
| 773 | return bytes_read; |
| 774 | } |
| 775 | |
| 776 | /* |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 777 | * nss_stats_pppoe_read() |
| 778 | * Read PPPoE stats |
| 779 | */ |
| 780 | static ssize_t nss_stats_pppoe_read(struct file *fp, char __user *ubuf, size_t sz, loff_t *ppos) |
| 781 | { |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 782 | int32_t i, j, k; |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 783 | |
| 784 | /* |
| 785 | * max output lines = #stats + start tag line + end tag line + three blank lines |
| 786 | */ |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 787 | uint32_t max_output_lines = (NSS_STATS_NODE_MAX + 2) + (NSS_STATS_PPPOE_MAX + 3) + |
Ankit Dhanuka | a1569ce | 2014-05-13 19:58:06 +0530 | [diff] [blame] | 788 | ((NSS_MAX_PHYSICAL_INTERFACES * NSS_PPPOE_NUM_SESSION_PER_INTERFACE * (NSS_PPPOE_EXCEPTION_EVENT_MAX + 5)) + 3) + 5; |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 789 | size_t size_al = NSS_STATS_MAX_STR_LENGTH * max_output_lines; |
| 790 | size_t size_wr = 0; |
| 791 | ssize_t bytes_read = 0; |
| 792 | uint64_t *stats_shadow; |
| 793 | |
| 794 | char *lbuf = kzalloc(size_al, GFP_KERNEL); |
| 795 | if (unlikely(lbuf == NULL)) { |
| 796 | nss_warning("Could not allocate memory for local statistics buffer"); |
| 797 | return 0; |
| 798 | } |
| 799 | |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 800 | stats_shadow = kzalloc(64 * 8, GFP_KERNEL); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 801 | if (unlikely(stats_shadow == NULL)) { |
| 802 | nss_warning("Could not allocate memory for local shadow buffer"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 803 | kfree(lbuf); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 804 | return 0; |
| 805 | } |
| 806 | |
| 807 | size_wr = scnprintf(lbuf, size_al, "pppoe stats start:\n\n"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 808 | |
| 809 | /* |
| 810 | * Common node stats |
| 811 | */ |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 812 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "common node stats:\n\n"); |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 813 | spin_lock_bh(&nss_top_main.stats_lock); |
| 814 | for (i = 0; (i < NSS_STATS_NODE_MAX); i++) { |
| 815 | stats_shadow[i] = nss_top_main.stats_node[NSS_PPPOE_RX_INTERFACE][i]; |
| 816 | } |
| 817 | |
| 818 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 819 | |
| 820 | for (i = 0; (i < NSS_STATS_NODE_MAX); i++) { |
| 821 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 822 | "%s = %llu\n", nss_stats_str_node[i], stats_shadow[i]); |
| 823 | } |
| 824 | |
| 825 | /* |
| 826 | * PPPoE node stats |
| 827 | */ |
Abhishek Rastogi | a1a0797 | 2014-04-01 19:43:33 +0530 | [diff] [blame] | 828 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "pppoe node stats:\n\n"); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 829 | spin_lock_bh(&nss_top_main.stats_lock); |
| 830 | for (i = 0; (i < NSS_STATS_PPPOE_MAX); i++) { |
| 831 | stats_shadow[i] = nss_top_main.stats_pppoe[i]; |
| 832 | } |
| 833 | |
| 834 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 835 | |
| 836 | for (i = 0; (i < NSS_STATS_PPPOE_MAX); i++) { |
| 837 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 838 | "%s = %llu\n", nss_stats_str_pppoe[i], stats_shadow[i]); |
| 839 | } |
| 840 | |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 841 | /* |
| 842 | * Exception stats |
| 843 | */ |
| 844 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\nException PPPoE:\n\n"); |
| 845 | |
| 846 | for (j = 0; j < NSS_MAX_PHYSICAL_INTERFACES; j++) { |
| 847 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\nInterface %d:\n\n", j); |
| 848 | |
| 849 | spin_lock_bh(&nss_top_main.stats_lock); |
| 850 | for (k = 0; k < NSS_PPPOE_NUM_SESSION_PER_INTERFACE; k++) { |
Ankit Dhanuka | a1569ce | 2014-05-13 19:58:06 +0530 | [diff] [blame] | 851 | for (i = 0; (i < NSS_PPPOE_EXCEPTION_EVENT_MAX); i++) { |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 852 | stats_shadow_pppoe_except[k][i] = nss_top_main.stats_if_exception_pppoe[j][k][i]; |
| 853 | } |
| 854 | } |
| 855 | |
| 856 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 857 | |
| 858 | for (k = 0; k < NSS_PPPOE_NUM_SESSION_PER_INTERFACE; k++) { |
| 859 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "%d. Session\n", k); |
Ankit Dhanuka | a1569ce | 2014-05-13 19:58:06 +0530 | [diff] [blame] | 860 | for (i = 0; (i < NSS_PPPOE_EXCEPTION_EVENT_MAX); i++) { |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 861 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 862 | "%s = %llu\n", |
| 863 | nss_stats_str_if_exception_pppoe[i], |
| 864 | stats_shadow_pppoe_except[k][i]); |
| 865 | } |
| 866 | } |
| 867 | |
| 868 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\npppoe stats end\n\n"); |
| 869 | } |
| 870 | |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 871 | bytes_read = simple_read_from_buffer(ubuf, sz, ppos, lbuf, strlen(lbuf)); |
| 872 | kfree(lbuf); |
| 873 | kfree(stats_shadow); |
| 874 | |
| 875 | return bytes_read; |
| 876 | } |
| 877 | |
| 878 | /* |
| 879 | * nss_stats_gmac_read() |
| 880 | * Read GMAC stats |
| 881 | */ |
| 882 | static ssize_t nss_stats_gmac_read(struct file *fp, char __user *ubuf, size_t sz, loff_t *ppos) |
| 883 | { |
| 884 | uint32_t i, id; |
| 885 | |
| 886 | /* |
| 887 | * max output lines = ((#stats + start tag + one blank) * #GMACs) + start/end tag + 3 blank |
| 888 | */ |
| 889 | uint32_t max_output_lines = ((NSS_STATS_GMAC_MAX + 2) * NSS_MAX_PHYSICAL_INTERFACES) + 5; |
| 890 | size_t size_al = NSS_STATS_MAX_STR_LENGTH * max_output_lines; |
| 891 | size_t size_wr = 0; |
| 892 | ssize_t bytes_read = 0; |
| 893 | uint64_t *stats_shadow; |
| 894 | |
| 895 | char *lbuf = kzalloc(size_al, GFP_KERNEL); |
| 896 | if (unlikely(lbuf == NULL)) { |
| 897 | nss_warning("Could not allocate memory for local statistics buffer"); |
| 898 | return 0; |
| 899 | } |
| 900 | |
| 901 | stats_shadow = kzalloc(NSS_STATS_GMAC_MAX * 8, GFP_KERNEL); |
| 902 | if (unlikely(stats_shadow == NULL)) { |
| 903 | nss_warning("Could not allocate memory for local shadow buffer"); |
| 904 | return 0; |
| 905 | } |
| 906 | |
| 907 | size_wr = scnprintf(lbuf, size_al, "gmac stats start:\n\n"); |
| 908 | |
| 909 | for (id = 0; id < NSS_MAX_PHYSICAL_INTERFACES; id++) { |
| 910 | spin_lock_bh(&nss_top_main.stats_lock); |
| 911 | for (i = 0; (i < NSS_STATS_GMAC_MAX); i++) { |
| 912 | stats_shadow[i] = nss_top_main.stats_gmac[id][i]; |
| 913 | } |
| 914 | |
| 915 | spin_unlock_bh(&nss_top_main.stats_lock); |
| 916 | |
| 917 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "GMAC ID: %d\n", id); |
| 918 | for (i = 0; (i < NSS_STATS_GMAC_MAX); i++) { |
| 919 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, |
| 920 | "%s = %llu\n", nss_stats_str_gmac[i], stats_shadow[i]); |
| 921 | } |
| 922 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr,"\n"); |
| 923 | } |
| 924 | |
| 925 | size_wr += scnprintf(lbuf + size_wr, size_al - size_wr, "\ngmac stats end\n\n"); |
| 926 | bytes_read = simple_read_from_buffer(ubuf, sz, ppos, lbuf, strlen(lbuf)); |
| 927 | kfree(lbuf); |
| 928 | kfree(stats_shadow); |
| 929 | |
| 930 | return bytes_read; |
| 931 | } |
| 932 | |
Saurabh Misra | 09dddeb | 2014-09-30 16:38:07 -0700 | [diff] [blame] | 933 | /* |
| 934 | * Make a row for CAPWAP encap stats. |
| 935 | */ |
| 936 | static ssize_t nss_stats_capwap_encap(char *line, int len, int i, struct nss_capwap_tunnel_stats *s) |
| 937 | { |
| 938 | char *header[] = { "TX Packets", "TX Bytes", "TX Drops", "Fragments", "QFull", "MemFail", "Unknown" }; |
| 939 | uint64_t tcnt = 0; |
| 940 | |
| 941 | switch (i) { |
| 942 | case 0: |
| 943 | tcnt = s->pnode_stats.tx_packets; |
| 944 | break; |
| 945 | case 1: |
| 946 | tcnt = s->pnode_stats.tx_bytes; |
| 947 | break; |
| 948 | case 2: |
| 949 | tcnt = s->tx_dropped; |
| 950 | break; |
| 951 | case 3: |
| 952 | tcnt = s->tx_segments; |
| 953 | break; |
| 954 | case 4: |
| 955 | tcnt = s->tx_queue_full_drops; |
| 956 | break; |
| 957 | case 5: |
| 958 | tcnt = s->tx_mem_failure_drops; |
| 959 | break; |
| 960 | default: |
| 961 | i = 6; |
| 962 | break; |
| 963 | } |
| 964 | |
| 965 | return (snprintf(line, len, "%14s %llu\n", header[i], tcnt)); |
| 966 | } |
| 967 | |
| 968 | /* |
| 969 | * Make a row for CAPWAP decap stats. |
| 970 | */ |
| 971 | static ssize_t nss_stats_capwap_decap(char *line, int len, int i, struct nss_capwap_tunnel_stats *s) |
| 972 | { |
| 973 | char *header[] = { "RX Packets", "RX Bytes", "RX Dropped", "DTLS pkts", "Fragments", "OSzDrop", "FTimeout", "FDup", "QFull", "MemFail", "Unknown" }; |
| 974 | uint64_t tcnt = 0; |
| 975 | |
| 976 | switch(i) { |
| 977 | case 0: |
| 978 | tcnt = s->pnode_stats.rx_packets; |
| 979 | break; |
| 980 | case 1: |
| 981 | tcnt = s->pnode_stats.rx_bytes; |
| 982 | break; |
| 983 | case 2: |
| 984 | tcnt = s->pnode_stats.rx_dropped; |
| 985 | break; |
| 986 | case 3: |
| 987 | tcnt = s->dtls_pkts; |
| 988 | break; |
| 989 | case 4: |
| 990 | tcnt = s->rx_segments; |
| 991 | break; |
| 992 | case 5: |
| 993 | tcnt = s->oversize_drops; |
| 994 | break; |
| 995 | case 6: |
| 996 | tcnt = s->frag_timeout_drops; |
| 997 | break; |
| 998 | case 7: |
| 999 | tcnt = s->rx_dup_frag; |
| 1000 | break; |
| 1001 | case 8: |
| 1002 | tcnt = s->rx_queue_full_drops; |
| 1003 | return (snprintf(line, len, "%14s: %llu (n2h: %llu)\n", header[i], tcnt, s->rx_n2h_queue_full_drops)); |
| 1004 | case 9: |
| 1005 | tcnt = s->rx_mem_failure_drops; |
| 1006 | break; |
| 1007 | default: |
| 1008 | i = 10; |
| 1009 | break; |
| 1010 | } |
| 1011 | |
| 1012 | return (snprintf(line, len, "%14s: %llu\n", header[i], tcnt)); |
| 1013 | } |
| 1014 | |
| 1015 | /* |
| 1016 | * nss_stats_capwap_read() |
| 1017 | * Read CAPWAP stats |
| 1018 | */ |
| 1019 | static ssize_t nss_stats_capwap_read(struct file *fp, char __user *ubuf, size_t sz, loff_t *ppos, uint16_t type) |
| 1020 | { |
| 1021 | struct nss_stats_data *data = fp->private_data; |
| 1022 | ssize_t bytes_read = 0; |
| 1023 | struct nss_capwap_tunnel_stats stats; |
| 1024 | size_t bytes; |
| 1025 | char line[80]; |
| 1026 | int start, end; |
| 1027 | uint32_t if_num = NSS_DYNAMIC_IF_START; |
| 1028 | uint32_t max_if_num = NSS_DYNAMIC_IF_START + NSS_MAX_DYNAMIC_INTERFACES; |
| 1029 | |
| 1030 | if (data) { |
| 1031 | if_num = data->if_num; |
| 1032 | } |
| 1033 | |
| 1034 | /* |
| 1035 | * If we are done accomodating all the CAPWAP tunnels. |
| 1036 | */ |
| 1037 | if (if_num > max_if_num) { |
| 1038 | return 0; |
| 1039 | } |
| 1040 | |
| 1041 | for (; if_num <= max_if_num; if_num++) { |
| 1042 | bool isthere; |
| 1043 | |
| 1044 | if (nss_is_dynamic_interface(if_num) == false) { |
| 1045 | continue; |
| 1046 | } |
| 1047 | |
| 1048 | if (nss_dynamic_interface_get_type(if_num) != NSS_DYNAMIC_INTERFACE_TYPE_CAPWAP) { |
| 1049 | continue; |
| 1050 | } |
| 1051 | |
| 1052 | /* |
| 1053 | * If CAPWAP tunnel does not exists, then isthere will be false. |
| 1054 | */ |
| 1055 | isthere = nss_capwap_get_stats(if_num, &stats); |
| 1056 | if (!isthere) { |
| 1057 | continue; |
| 1058 | } |
| 1059 | |
| 1060 | bytes = snprintf(line, sizeof(line), "(%2d) %9s %s\n", if_num, "Stats", "Total"); |
| 1061 | if ((bytes_read + bytes) > sz) { |
| 1062 | break; |
| 1063 | } |
| 1064 | |
| 1065 | if (copy_to_user(ubuf + bytes_read, line, bytes) != 0) { |
| 1066 | bytes_read = -EFAULT; |
| 1067 | goto fail; |
| 1068 | } |
| 1069 | bytes_read += bytes; |
| 1070 | start = 0; |
| 1071 | if (type == 1) { |
| 1072 | end = 5; /* encap */ |
| 1073 | } else { |
| 1074 | end = 9; /* decap */ |
| 1075 | } |
| 1076 | while (bytes_read < sz && start < end) { |
| 1077 | if (type == 1) { |
| 1078 | bytes = nss_stats_capwap_encap(line, sizeof(line), start, &stats); |
| 1079 | } else { |
| 1080 | bytes = nss_stats_capwap_decap(line, sizeof(line), start, &stats); |
| 1081 | } |
| 1082 | |
| 1083 | if ((bytes_read + bytes) > sz) |
| 1084 | break; |
| 1085 | |
| 1086 | if (copy_to_user(ubuf + bytes_read, line, bytes) != 0) { |
| 1087 | bytes_read = -EFAULT; |
| 1088 | goto fail; |
| 1089 | } |
| 1090 | |
| 1091 | bytes_read += bytes; |
| 1092 | start++; |
| 1093 | } |
| 1094 | } |
| 1095 | |
| 1096 | if (bytes_read > 0) { |
| 1097 | *ppos = bytes_read; |
| 1098 | } |
| 1099 | |
| 1100 | if (data) { |
| 1101 | data->if_num = if_num; |
| 1102 | } |
| 1103 | fail: |
| 1104 | return bytes_read; |
| 1105 | } |
| 1106 | |
| 1107 | /* |
| 1108 | * nss_stats_capwap_decap_read() |
| 1109 | * Read CAPWAP decap stats |
| 1110 | */ |
| 1111 | static ssize_t nss_stats_capwap_decap_read(struct file *fp, char __user *ubuf, size_t sz, loff_t *ppos) |
| 1112 | { |
| 1113 | return (nss_stats_capwap_read(fp, ubuf, sz, ppos, 0)); |
| 1114 | } |
| 1115 | |
| 1116 | /* |
| 1117 | * nss_stats_capwap_encap_read() |
| 1118 | * Read CAPWAP encap stats |
| 1119 | */ |
| 1120 | static ssize_t nss_stats_capwap_encap_read(struct file *fp, char __user *ubuf, size_t sz, loff_t *ppos) |
| 1121 | { |
| 1122 | return (nss_stats_capwap_read(fp, ubuf, sz, ppos, 1)); |
| 1123 | } |
| 1124 | |
| 1125 | /* |
| 1126 | * nss_stats_open() |
| 1127 | */ |
| 1128 | static int nss_stats_open(struct inode *inode, struct file *filp) |
| 1129 | { |
| 1130 | struct nss_stats_data *data = NULL; |
| 1131 | |
| 1132 | data = kzalloc(sizeof(struct nss_stats_data), GFP_KERNEL); |
| 1133 | if (!data) { |
| 1134 | return -ENOMEM; |
| 1135 | } |
| 1136 | memset(data, 0, sizeof (struct nss_stats_data)); |
| 1137 | data->if_num = NSS_DYNAMIC_IF_START; |
| 1138 | filp->private_data = data; |
| 1139 | |
| 1140 | return 0; |
| 1141 | } |
| 1142 | |
| 1143 | /* |
| 1144 | * nss_stats_release() |
| 1145 | */ |
| 1146 | static int nss_stats_release(struct inode *inode, struct file *filp) |
| 1147 | { |
| 1148 | struct nss_stats_data *data = filp->private_data; |
| 1149 | |
| 1150 | if (data) { |
| 1151 | kfree(data); |
| 1152 | } |
| 1153 | |
| 1154 | return 0; |
| 1155 | } |
| 1156 | |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1157 | #define NSS_STATS_DECLARE_FILE_OPERATIONS(name) \ |
| 1158 | static const struct file_operations nss_stats_##name##_ops = { \ |
Saurabh Misra | 09dddeb | 2014-09-30 16:38:07 -0700 | [diff] [blame] | 1159 | .open = nss_stats_open, \ |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1160 | .read = nss_stats_##name##_read, \ |
| 1161 | .llseek = generic_file_llseek, \ |
Saurabh Misra | 09dddeb | 2014-09-30 16:38:07 -0700 | [diff] [blame] | 1162 | .release = nss_stats_release, \ |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1163 | }; |
| 1164 | |
| 1165 | /* |
| 1166 | * nss_ipv4_stats_ops |
| 1167 | */ |
| 1168 | NSS_STATS_DECLARE_FILE_OPERATIONS(ipv4) |
| 1169 | |
| 1170 | /* |
Selin Dag | 6d9b0c1 | 2014-11-04 18:27:21 -0800 | [diff] [blame] | 1171 | * ipv4_reasm_stats_ops |
| 1172 | */ |
| 1173 | NSS_STATS_DECLARE_FILE_OPERATIONS(ipv4_reasm) |
| 1174 | |
| 1175 | /* |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1176 | * ipv6_stats_ops |
| 1177 | */ |
| 1178 | NSS_STATS_DECLARE_FILE_OPERATIONS(ipv6) |
| 1179 | |
| 1180 | /* |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1181 | * n2h_stats_ops |
| 1182 | */ |
| 1183 | NSS_STATS_DECLARE_FILE_OPERATIONS(n2h) |
| 1184 | /* |
| 1185 | * drv_stats_ops |
| 1186 | */ |
| 1187 | NSS_STATS_DECLARE_FILE_OPERATIONS(drv) |
| 1188 | |
| 1189 | /* |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1190 | * pppoe_stats_ops |
| 1191 | */ |
| 1192 | NSS_STATS_DECLARE_FILE_OPERATIONS(pppoe) |
| 1193 | |
| 1194 | /* |
| 1195 | * gmac_stats_ops |
| 1196 | */ |
| 1197 | NSS_STATS_DECLARE_FILE_OPERATIONS(gmac) |
| 1198 | |
| 1199 | /* |
Saurabh Misra | 09dddeb | 2014-09-30 16:38:07 -0700 | [diff] [blame] | 1200 | * capwap_stats_ops |
| 1201 | */ |
| 1202 | NSS_STATS_DECLARE_FILE_OPERATIONS(capwap_encap) |
| 1203 | NSS_STATS_DECLARE_FILE_OPERATIONS(capwap_decap) |
| 1204 | |
| 1205 | /* |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 1206 | * eth_rx_stats_ops |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1207 | */ |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 1208 | NSS_STATS_DECLARE_FILE_OPERATIONS(eth_rx) |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1209 | |
| 1210 | /* |
| 1211 | * nss_stats_init() |
| 1212 | * Enable NSS statistics |
| 1213 | */ |
| 1214 | void nss_stats_init(void) |
| 1215 | { |
| 1216 | /* |
| 1217 | * NSS driver entry |
| 1218 | */ |
| 1219 | nss_top_main.top_dentry = debugfs_create_dir("qca-nss-drv", NULL); |
| 1220 | if (unlikely(nss_top_main.top_dentry == NULL)) { |
| 1221 | nss_warning("Failed to create qca-nss-drv directory in debugfs"); |
| 1222 | |
| 1223 | /* |
| 1224 | * Non availability of debugfs directory is not a catastrophy |
| 1225 | * We can still go ahead with other initialization |
| 1226 | */ |
| 1227 | return; |
| 1228 | } |
| 1229 | |
| 1230 | nss_top_main.stats_dentry = debugfs_create_dir("stats", nss_top_main.top_dentry); |
Abhishek Rastogi | 80f4eb1 | 2013-09-24 14:31:21 +0530 | [diff] [blame] | 1231 | if (unlikely(nss_top_main.stats_dentry == NULL)) { |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1232 | nss_warning("Failed to create qca-nss-drv directory in debugfs"); |
| 1233 | |
| 1234 | /* |
| 1235 | * Non availability of debugfs directory is not a catastrophy |
| 1236 | * We can still go ahead with rest of initialization |
| 1237 | */ |
| 1238 | return; |
| 1239 | } |
| 1240 | |
| 1241 | /* |
| 1242 | * Create files to obtain statistics |
| 1243 | */ |
| 1244 | |
| 1245 | /* |
| 1246 | * ipv4_stats |
| 1247 | */ |
| 1248 | nss_top_main.ipv4_dentry = debugfs_create_file("ipv4", 0400, |
| 1249 | nss_top_main.stats_dentry, &nss_top_main, &nss_stats_ipv4_ops); |
| 1250 | if (unlikely(nss_top_main.ipv4_dentry == NULL)) { |
Abhishek Rastogi | 80f4eb1 | 2013-09-24 14:31:21 +0530 | [diff] [blame] | 1251 | nss_warning("Failed to create qca-nss-drv/stats/ipv4 file in debugfs"); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1252 | return; |
| 1253 | } |
| 1254 | |
| 1255 | /* |
Selin Dag | 6d9b0c1 | 2014-11-04 18:27:21 -0800 | [diff] [blame] | 1256 | * ipv4_reasm_stats |
| 1257 | */ |
| 1258 | nss_top_main.ipv4_reasm_dentry = debugfs_create_file("ipv4_reasm", 0400, |
| 1259 | nss_top_main.stats_dentry, &nss_top_main, &nss_stats_ipv4_reasm_ops); |
| 1260 | if (unlikely(nss_top_main.ipv4_reasm_dentry == NULL)) { |
| 1261 | nss_warning("Failed to create qca-nss-drv/stats/ipv4_reasm file in debugfs"); |
| 1262 | return; |
| 1263 | } |
| 1264 | |
| 1265 | /* |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1266 | * ipv6_stats |
| 1267 | */ |
| 1268 | nss_top_main.ipv6_dentry = debugfs_create_file("ipv6", 0400, |
| 1269 | nss_top_main.stats_dentry, &nss_top_main, &nss_stats_ipv6_ops); |
| 1270 | if (unlikely(nss_top_main.ipv6_dentry == NULL)) { |
Abhishek Rastogi | 80f4eb1 | 2013-09-24 14:31:21 +0530 | [diff] [blame] | 1271 | nss_warning("Failed to create qca-nss-drv/stats/ipv6 file in debugfs"); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1272 | return; |
| 1273 | } |
| 1274 | |
| 1275 | /* |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 1276 | * ipv6_stats |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1277 | */ |
Abhishek Rastogi | 84d95d0 | 2014-03-26 19:31:31 +0530 | [diff] [blame] | 1278 | nss_top_main.eth_rx_dentry = debugfs_create_file("eth_rx", 0400, |
| 1279 | nss_top_main.stats_dentry, &nss_top_main, &nss_stats_eth_rx_ops); |
| 1280 | if (unlikely(nss_top_main.eth_rx_dentry == NULL)) { |
| 1281 | nss_warning("Failed to create qca-nss-drv/stats/eth_rx file in debugfs"); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1282 | return; |
| 1283 | } |
| 1284 | |
| 1285 | /* |
| 1286 | * n2h_stats |
| 1287 | */ |
| 1288 | nss_top_main.n2h_dentry = debugfs_create_file("n2h", 0400, |
| 1289 | nss_top_main.stats_dentry, &nss_top_main, &nss_stats_n2h_ops); |
| 1290 | if (unlikely(nss_top_main.n2h_dentry == NULL)) { |
| 1291 | nss_warning("Failed to create qca-nss-drv/stats/n2h directory in debugfs"); |
| 1292 | return; |
| 1293 | } |
| 1294 | |
| 1295 | /* |
| 1296 | * drv_stats |
| 1297 | */ |
| 1298 | nss_top_main.drv_dentry = debugfs_create_file("drv", 0400, |
| 1299 | nss_top_main.stats_dentry, &nss_top_main, &nss_stats_drv_ops); |
| 1300 | if (unlikely(nss_top_main.drv_dentry == NULL)) { |
| 1301 | nss_warning("Failed to create qca-nss-drv/stats/drv directory in debugfs"); |
| 1302 | return; |
| 1303 | } |
| 1304 | |
| 1305 | /* |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1306 | * pppoe_stats |
| 1307 | */ |
| 1308 | nss_top_main.pppoe_dentry = debugfs_create_file("pppoe", 0400, |
| 1309 | nss_top_main.stats_dentry, &nss_top_main, &nss_stats_pppoe_ops); |
| 1310 | if (unlikely(nss_top_main.pppoe_dentry == NULL)) { |
Abhishek Rastogi | 80f4eb1 | 2013-09-24 14:31:21 +0530 | [diff] [blame] | 1311 | nss_warning("Failed to create qca-nss-drv/stats/pppoe file in debugfs"); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1312 | return; |
| 1313 | } |
| 1314 | |
| 1315 | /* |
| 1316 | * gmac_stats |
| 1317 | */ |
| 1318 | nss_top_main.gmac_dentry = debugfs_create_file("gmac", 0400, |
| 1319 | nss_top_main.stats_dentry, &nss_top_main, &nss_stats_gmac_ops); |
| 1320 | if (unlikely(nss_top_main.gmac_dentry == NULL)) { |
Abhishek Rastogi | 80f4eb1 | 2013-09-24 14:31:21 +0530 | [diff] [blame] | 1321 | nss_warning("Failed to create qca-nss-drv/stats/gmac file in debugfs"); |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1322 | return; |
| 1323 | } |
Saurabh Misra | 09dddeb | 2014-09-30 16:38:07 -0700 | [diff] [blame] | 1324 | |
| 1325 | /* |
| 1326 | * CAPWAP stats. |
| 1327 | */ |
| 1328 | nss_top_main.capwap_encap_dentry = debugfs_create_file("capwap_encap", 0400, |
| 1329 | nss_top_main.stats_dentry, &nss_top_main, &nss_stats_capwap_encap_ops); |
| 1330 | if (unlikely(nss_top_main.capwap_encap_dentry == NULL)) { |
| 1331 | nss_warning("Failed to create qca-nss-drv/stats/capwap_encap file in debugfs"); |
| 1332 | return; |
| 1333 | } |
| 1334 | |
| 1335 | nss_top_main.capwap_decap_dentry = debugfs_create_file("capwap_decap", 0400, |
| 1336 | nss_top_main.stats_dentry, &nss_top_main, &nss_stats_capwap_decap_ops); |
| 1337 | if (unlikely(nss_top_main.capwap_decap_dentry == NULL)) { |
| 1338 | nss_warning("Failed to create qca-nss-drv/stats/capwap_decap file in debugfs"); |
| 1339 | return; |
| 1340 | } |
Abhishek Rastogi | 38cffff | 2013-06-02 11:25:47 +0530 | [diff] [blame] | 1341 | } |
| 1342 | |
| 1343 | |
| 1344 | /* |
| 1345 | * nss_stats_clean() |
| 1346 | * Cleanup NSS statistics files |
| 1347 | */ |
| 1348 | void nss_stats_clean(void) |
| 1349 | { |
| 1350 | /* |
| 1351 | * Remove debugfs tree |
| 1352 | */ |
| 1353 | if (likely(nss_top_main.top_dentry != NULL)) { |
| 1354 | debugfs_remove_recursive(nss_top_main.top_dentry); |
| 1355 | } |
| 1356 | } |