From b54bd9be35f4084edb3eb9ee054a43f722a67483 Mon Sep 17 00:00:00 2001 From: Cliff Wickman Date: Mon, 16 Jan 2012 15:22:38 -0600 Subject: [PATCH] x86/UV2: Add accounting for BAU strong nacks This patch adds separate accounting of UV2 message "strong nack's" in the BAU statistics. Signed-off-by: Cliff Wickman Link: http://lkml.kernel.org/r/20120116212238.GF5767@sgi.com Signed-off-by: Ingo Molnar --- arch/x86/include/asm/uv/uv_bau.h | 1 + arch/x86/platform/uv/tlb_uv.c | 12 +++++++----- 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h index 1b82f7e87393..becf47b81735 100644 --- a/arch/x86/include/asm/uv/uv_bau.h +++ b/arch/x86/include/asm/uv/uv_bau.h @@ -483,6 +483,7 @@ struct ptc_stats { requests */ unsigned long s_stimeout; /* source side timeouts */ unsigned long s_dtimeout; /* destination side timeouts */ + unsigned long s_strongnacks; /* number of strong nack's */ unsigned long s_time; /* time spent in sending side */ unsigned long s_retriesok; /* successful retries */ unsigned long s_ntargcpu; /* total number of cpu's diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c index 4686bf1e56ec..9be4cff00a2d 100644 --- a/arch/x86/platform/uv/tlb_uv.c +++ b/arch/x86/platform/uv/tlb_uv.c @@ -635,13 +635,15 @@ static int uv2_wait_completion(struct bau_desc *bau_desc, * our message and its state will stay IDLE. */ if ((descriptor_stat == UV2H_DESC_SOURCE_TIMEOUT) || - (descriptor_stat == UV2H_DESC_DEST_STRONG_NACK) || (descriptor_stat == UV2H_DESC_DEST_PUT_ERR)) { stat->s_stimeout++; return FLUSH_GIVEUP; + } else if (descriptor_stat == UV2H_DESC_DEST_STRONG_NACK) { + stat->s_strongnacks++; + bcp->conseccompletes = 0; + return FLUSH_GIVEUP; } else if (descriptor_stat == UV2H_DESC_DEST_TIMEOUT) { stat->s_dtimeout++; - ttm = get_cycles(); bcp->conseccompletes = 0; return FLUSH_RETRY_TIMEOUT; } else { @@ -1346,7 +1348,7 @@ static int ptc_seq_show(struct seq_file *file, void *data) seq_printf(file, "remotehub numuvhubs numuvhubs16 numuvhubs8 "); seq_printf(file, - "numuvhubs4 numuvhubs2 numuvhubs1 dto retries rok "); + "numuvhubs4 numuvhubs2 numuvhubs1 dto snacks retries rok "); seq_printf(file, "resetp resett giveup sto bz throt swack recv rtime "); seq_printf(file, @@ -1364,10 +1366,10 @@ static int ptc_seq_show(struct seq_file *file, void *data) stat->s_ntargremotes, stat->s_ntargcpu, stat->s_ntarglocaluvhub, stat->s_ntargremoteuvhub, stat->s_ntarguvhub, stat->s_ntarguvhub16); - seq_printf(file, "%ld %ld %ld %ld %ld ", + seq_printf(file, "%ld %ld %ld %ld %ld %ld ", stat->s_ntarguvhub8, stat->s_ntarguvhub4, stat->s_ntarguvhub2, stat->s_ntarguvhub1, - stat->s_dtimeout); + stat->s_dtimeout, stat->s_strongnacks); seq_printf(file, "%ld %ld %ld %ld %ld %ld %ld %ld ", stat->s_retry_messages, stat->s_retriesok, stat->s_resets_plug, stat->s_resets_timeout,