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authorCliff Wickman <cpw@sgi.com>2012-01-16 15:22:38 -0600
committerIngo Molnar <mingo@elte.hu>2012-01-17 09:09:59 +0100
commitb54bd9be35f4084edb3eb9ee054a43f722a67483 (patch)
treee4da5a701da9942f77b0f317296d75f6cec9ecb8 /arch
parent88ed9dd7f63c3ae71c1984d99ee2dced0b386dea (diff)
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 <cpw@sgi.com> Link: http://lkml.kernel.org/r/20120116212238.GF5767@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/include/asm/uv/uv_bau.h1
-rw-r--r--arch/x86/platform/uv/tlb_uv.c12
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,

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