Date: Mon, 29 Sep 2025 14:37:48 GMT From: Navdeep Parhar <np@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: fc7f27c31eee - main - cxgbe(4): Include T7 PMRX cache stats in the sysctl that shows PM stats Message-ID: <202509291437.58TEbm5f017737@gitrepo.freebsd.org>
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The branch main has been updated by np: URL: https://cgit.FreeBSD.org/src/commit/?id=fc7f27c31eee81c46f20991343799f017aa79948 commit fc7f27c31eee81c46f20991343799f017aa79948 Author: Navdeep Parhar <np@FreeBSD.org> AuthorDate: 2025-09-29 08:32:08 +0000 Commit: Navdeep Parhar <np@FreeBSD.org> CommitDate: 2025-09-29 14:25:59 +0000 cxgbe(4): Include T7 PMRX cache stats in the sysctl that shows PM stats MFC after: 3 days Sponsored by: Chelsio Communications --- sys/dev/cxgbe/t4_main.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 59 insertions(+), 1 deletion(-) diff --git a/sys/dev/cxgbe/t4_main.c b/sys/dev/cxgbe/t4_main.c index db7ed38b1f9f..f4366c9d6093 100644 --- a/sys/dev/cxgbe/t4_main.c +++ b/sys/dev/cxgbe/t4_main.c @@ -10976,6 +10976,7 @@ sysctl_pm_stats(SYSCTL_HANDLER_ARGS) int rc, i; uint32_t tx_cnt[MAX_PM_NSTATS], rx_cnt[MAX_PM_NSTATS]; uint64_t tx_cyc[MAX_PM_NSTATS], rx_cyc[MAX_PM_NSTATS]; + uint32_t stats[T7_PM_RX_CACHE_NSTATS]; static const char *tx_stats[MAX_PM_NSTATS] = { "Read:", "Write bypass:", "Write mem:", "Bypass + mem:", "Tx FIFO wait", NULL, "Tx latency" @@ -10992,12 +10993,14 @@ sysctl_pm_stats(SYSCTL_HANDLER_ARGS) else { t4_pmtx_get_stats(sc, tx_cnt, tx_cyc); t4_pmrx_get_stats(sc, rx_cnt, rx_cyc); + if (chip_id(sc) >= CHELSIO_T7) + t4_pmrx_cache_get_stats(sc, stats); } mtx_unlock(&sc->reg_lock); if (rc != 0) return (rc); - sb = sbuf_new_for_sysctl(NULL, NULL, 256, req); + sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req); if (sb == NULL) return (ENOMEM); @@ -11032,6 +11035,61 @@ sysctl_pm_stats(SYSCTL_HANDLER_ARGS) rx_cyc[i]); } + if (chip_id(sc) >= CHELSIO_T7) { + i = 0; + sbuf_printf(sb, "\n\nPM RX Cache Stats\n"); + sbuf_printf(sb, "%-40s %u\n", "ReqWrite", stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "ReqReadInv", stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "ReqReadNoInv", stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "Write Split Request", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", + "Normal Read Split (Read Invalidate)", stats[i++]); + sbuf_printf(sb, "%-40s %u\n", + "Feedback Read Split (Read NoInvalidate)", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "Write Hit", stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "Normal Read Hit", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "Feedback Read Hit", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "Normal Read Hit Full Avail", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "Normal Read Hit Full UnAvail", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", + "Normal Read Hit Partial Avail", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "FB Read Hit Full Avail", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "FB Read Hit Full UnAvail", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "FB Read Hit Partial Avail", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "Normal Read Full Free", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", + "Normal Read Part-avail Mul-Regions", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", + "FB Read Part-avail Mul-Regions", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "Write Miss FL Used", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "Write Miss LRU Used", + stats[i++]); + sbuf_printf(sb, "%-40s %u\n", + "Write Miss LRU-Multiple Evict", stats[i++]); + sbuf_printf(sb, "%-40s %u\n", + "Write Hit Increasing Islands", stats[i++]); + sbuf_printf(sb, "%-40s %u\n", + "Normal Read Island Read split", stats[i++]); + sbuf_printf(sb, "%-40s %u\n", "Write Overflow Eviction", + stats[i++]); + sbuf_printf(sb, "%-40s %u", "Read Overflow Eviction", + stats[i++]); + } + rc = sbuf_finish(sb); sbuf_delete(sb);
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