diff options
Diffstat (limited to 'net/smc/smc_stats.h')
| -rw-r--r-- | net/smc/smc_stats.h | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/net/smc/smc_stats.h b/net/smc/smc_stats.h new file mode 100644 index 000000000..ee22d6f9a --- /dev/null +++ b/net/smc/smc_stats.h @@ -0,0 +1,271 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Shared Memory Communications over RDMA (SMC-R) and RoCE + * + * Macros for SMC statistics + * + * Copyright IBM Corp. 2021 + * + * Author(s): Guvenc Gulce + */ + +#ifndef NET_SMC_SMC_STATS_H_ +#define NET_SMC_SMC_STATS_H_ +#include <linux/init.h> +#include <linux/mutex.h> +#include <linux/percpu.h> +#include <linux/ctype.h> +#include <linux/smc.h> + +#include "smc_clc.h" + +#define SMC_MAX_FBACK_RSN_CNT 30 + +enum { + SMC_BUF_8K, + SMC_BUF_16K, + SMC_BUF_32K, + SMC_BUF_64K, + SMC_BUF_128K, + SMC_BUF_256K, + SMC_BUF_512K, + SMC_BUF_1024K, + SMC_BUF_G_1024K, + SMC_BUF_MAX, +}; + +struct smc_stats_fback { + int fback_code; + u16 count; +}; + +struct smc_stats_rsn { + struct smc_stats_fback srv[SMC_MAX_FBACK_RSN_CNT]; + struct smc_stats_fback clnt[SMC_MAX_FBACK_RSN_CNT]; + u64 srv_fback_cnt; + u64 clnt_fback_cnt; +}; + +struct smc_stats_rmbcnt { + u64 buf_size_small_peer_cnt; + u64 buf_size_small_cnt; + u64 buf_full_peer_cnt; + u64 buf_full_cnt; + u64 reuse_cnt; + u64 alloc_cnt; + u64 dgrade_cnt; +}; + +struct smc_stats_memsize { + u64 buf[SMC_BUF_MAX]; +}; + +struct smc_stats_tech { + struct smc_stats_memsize tx_rmbsize; + struct smc_stats_memsize rx_rmbsize; + struct smc_stats_memsize tx_pd; + struct smc_stats_memsize rx_pd; + struct smc_stats_rmbcnt rmb_tx; + struct smc_stats_rmbcnt rmb_rx; + u64 clnt_v1_succ_cnt; + u64 clnt_v2_succ_cnt; + u64 srv_v1_succ_cnt; + u64 srv_v2_succ_cnt; + u64 sendpage_cnt; + u64 urg_data_cnt; + u64 splice_cnt; + u64 cork_cnt; + u64 ndly_cnt; + u64 rx_bytes; + u64 tx_bytes; + u64 rx_cnt; + u64 tx_cnt; +}; + +struct smc_stats { + struct smc_stats_tech smc[2]; + u64 clnt_hshake_err_cnt; + u64 srv_hshake_err_cnt; +}; + +#define SMC_STAT_PAYLOAD_SUB(_smc_stats, _tech, key, _len, _rc) \ +do { \ + typeof(_smc_stats) stats = (_smc_stats); \ + typeof(_tech) t = (_tech); \ + typeof(_len) l = (_len); \ + int _pos; \ + typeof(_rc) r = (_rc); \ + int m = SMC_BUF_MAX - 1; \ + this_cpu_inc((*stats).smc[t].key ## _cnt); \ + if (r <= 0 || l <= 0) \ + break; \ + _pos = fls64((l - 1) >> 13); \ + _pos = (_pos <= m) ? _pos : m; \ + this_cpu_inc((*stats).smc[t].key ## _pd.buf[_pos]); \ + this_cpu_add((*stats).smc[t].key ## _bytes, r); \ +} \ +while (0) + +#define SMC_STAT_TX_PAYLOAD(_smc, length, rcode) \ +do { \ + typeof(_smc) __smc = _smc; \ + struct net *_net = sock_net(&__smc->sk); \ + struct smc_stats __percpu *_smc_stats = _net->smc.smc_stats; \ + typeof(length) _len = (length); \ + typeof(rcode) _rc = (rcode); \ + bool is_smcd = !__smc->conn.lnk; \ + if (is_smcd) \ + SMC_STAT_PAYLOAD_SUB(_smc_stats, SMC_TYPE_D, tx, _len, _rc); \ + else \ + SMC_STAT_PAYLOAD_SUB(_smc_stats, SMC_TYPE_R, tx, _len, _rc); \ +} \ +while (0) + +#define SMC_STAT_RX_PAYLOAD(_smc, length, rcode) \ +do { \ + typeof(_smc) __smc = _smc; \ + struct net *_net = sock_net(&__smc->sk); \ + struct smc_stats __percpu *_smc_stats = _net->smc.smc_stats; \ + typeof(length) _len = (length); \ + typeof(rcode) _rc = (rcode); \ + bool is_smcd = !__smc->conn.lnk; \ + if (is_smcd) \ + SMC_STAT_PAYLOAD_SUB(_smc_stats, SMC_TYPE_D, rx, _len, _rc); \ + else \ + SMC_STAT_PAYLOAD_SUB(_smc_stats, SMC_TYPE_R, rx, _len, _rc); \ +} \ +while (0) + +#define SMC_STAT_RMB_SIZE_SUB(_smc_stats, _tech, k, _len) \ +do { \ + typeof(_len) _l = (_len); \ + typeof(_tech) t = (_tech); \ + int _pos; \ + int m = SMC_BUF_MAX - 1; \ + if (_l <= 0) \ + break; \ + _pos = fls((_l - 1) >> 13); \ + _pos = (_pos <= m) ? _pos : m; \ + this_cpu_inc((*(_smc_stats)).smc[t].k ## _rmbsize.buf[_pos]); \ +} \ +while (0) + +#define SMC_STAT_RMB_SUB(_smc_stats, type, t, key) \ + this_cpu_inc((*(_smc_stats)).smc[t].rmb ## _ ## key.type ## _cnt) + +#define SMC_STAT_RMB_SIZE(_smc, _is_smcd, _is_rx, _len) \ +do { \ + struct net *_net = sock_net(&(_smc)->sk); \ + struct smc_stats __percpu *_smc_stats = _net->smc.smc_stats; \ + typeof(_is_smcd) is_d = (_is_smcd); \ + typeof(_is_rx) is_r = (_is_rx); \ + typeof(_len) l = (_len); \ + if ((is_d) && (is_r)) \ + SMC_STAT_RMB_SIZE_SUB(_smc_stats, SMC_TYPE_D, rx, l); \ + if ((is_d) && !(is_r)) \ + SMC_STAT_RMB_SIZE_SUB(_smc_stats, SMC_TYPE_D, tx, l); \ + if (!(is_d) && (is_r)) \ + SMC_STAT_RMB_SIZE_SUB(_smc_stats, SMC_TYPE_R, rx, l); \ + if (!(is_d) && !(is_r)) \ + SMC_STAT_RMB_SIZE_SUB(_smc_stats, SMC_TYPE_R, tx, l); \ +} \ +while (0) + +#define SMC_STAT_RMB(_smc, type, _is_smcd, _is_rx) \ +do { \ + struct net *net = sock_net(&(_smc)->sk); \ + struct smc_stats __percpu *_smc_stats = net->smc.smc_stats; \ + typeof(_is_smcd) is_d = (_is_smcd); \ + typeof(_is_rx) is_r = (_is_rx); \ + if ((is_d) && (is_r)) \ + SMC_STAT_RMB_SUB(_smc_stats, type, SMC_TYPE_D, rx); \ + if ((is_d) && !(is_r)) \ + SMC_STAT_RMB_SUB(_smc_stats, type, SMC_TYPE_D, tx); \ + if (!(is_d) && (is_r)) \ + SMC_STAT_RMB_SUB(_smc_stats, type, SMC_TYPE_R, rx); \ + if (!(is_d) && !(is_r)) \ + SMC_STAT_RMB_SUB(_smc_stats, type, SMC_TYPE_R, tx); \ +} \ +while (0) + +#define SMC_STAT_BUF_REUSE(smc, is_smcd, is_rx) \ + SMC_STAT_RMB(smc, reuse, is_smcd, is_rx) + +#define SMC_STAT_RMB_ALLOC(smc, is_smcd, is_rx) \ + SMC_STAT_RMB(smc, alloc, is_smcd, is_rx) + +#define SMC_STAT_RMB_DOWNGRADED(smc, is_smcd, is_rx) \ + SMC_STAT_RMB(smc, dgrade, is_smcd, is_rx) + +#define SMC_STAT_RMB_TX_PEER_FULL(smc, is_smcd) \ + SMC_STAT_RMB(smc, buf_full_peer, is_smcd, false) + +#define SMC_STAT_RMB_TX_FULL(smc, is_smcd) \ + SMC_STAT_RMB(smc, buf_full, is_smcd, false) + +#define SMC_STAT_RMB_TX_PEER_SIZE_SMALL(smc, is_smcd) \ + SMC_STAT_RMB(smc, buf_size_small_peer, is_smcd, false) + +#define SMC_STAT_RMB_TX_SIZE_SMALL(smc, is_smcd) \ + SMC_STAT_RMB(smc, buf_size_small, is_smcd, false) + +#define SMC_STAT_RMB_RX_SIZE_SMALL(smc, is_smcd) \ + SMC_STAT_RMB(smc, buf_size_small, is_smcd, true) + +#define SMC_STAT_RMB_RX_FULL(smc, is_smcd) \ + SMC_STAT_RMB(smc, buf_full, is_smcd, true) + +#define SMC_STAT_INC(_smc, type) \ +do { \ + typeof(_smc) __smc = _smc; \ + bool is_smcd = !(__smc)->conn.lnk; \ + struct net *net = sock_net(&(__smc)->sk); \ + struct smc_stats __percpu *smc_stats = net->smc.smc_stats; \ + if ((is_smcd)) \ + this_cpu_inc(smc_stats->smc[SMC_TYPE_D].type); \ + else \ + this_cpu_inc(smc_stats->smc[SMC_TYPE_R].type); \ +} \ +while (0) + +#define SMC_STAT_CLNT_SUCC_INC(net, _aclc) \ +do { \ + typeof(_aclc) acl = (_aclc); \ + bool is_v2 = (acl->hdr.version == SMC_V2); \ + bool is_smcd = (acl->hdr.typev1 == SMC_TYPE_D); \ + struct smc_stats __percpu *smc_stats = (net)->smc.smc_stats; \ + if (is_v2 && is_smcd) \ + this_cpu_inc(smc_stats->smc[SMC_TYPE_D].clnt_v2_succ_cnt); \ + else if (is_v2 && !is_smcd) \ + this_cpu_inc(smc_stats->smc[SMC_TYPE_R].clnt_v2_succ_cnt); \ + else if (!is_v2 && is_smcd) \ + this_cpu_inc(smc_stats->smc[SMC_TYPE_D].clnt_v1_succ_cnt); \ + else if (!is_v2 && !is_smcd) \ + this_cpu_inc(smc_stats->smc[SMC_TYPE_R].clnt_v1_succ_cnt); \ +} \ +while (0) + +#define SMC_STAT_SERV_SUCC_INC(net, _ini) \ +do { \ + typeof(_ini) i = (_ini); \ + bool is_smcd = (i->is_smcd); \ + u8 version = is_smcd ? i->smcd_version : i->smcr_version; \ + bool is_v2 = (version & SMC_V2); \ + typeof(net->smc.smc_stats) smc_stats = (net)->smc.smc_stats; \ + if (is_v2 && is_smcd) \ + this_cpu_inc(smc_stats->smc[SMC_TYPE_D].srv_v2_succ_cnt); \ + else if (is_v2 && !is_smcd) \ + this_cpu_inc(smc_stats->smc[SMC_TYPE_R].srv_v2_succ_cnt); \ + else if (!is_v2 && is_smcd) \ + this_cpu_inc(smc_stats->smc[SMC_TYPE_D].srv_v1_succ_cnt); \ + else if (!is_v2 && !is_smcd) \ + this_cpu_inc(smc_stats->smc[SMC_TYPE_R].srv_v1_succ_cnt); \ +} \ +while (0) + +int smc_nl_get_stats(struct sk_buff *skb, struct netlink_callback *cb); +int smc_nl_get_fback_stats(struct sk_buff *skb, struct netlink_callback *cb); +int smc_stats_init(struct net *net); +void smc_stats_exit(struct net *net); + +#endif /* NET_SMC_SMC_STATS_H_ */ |