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- Log ----------------------------------------------------------------- commit 6cd43041e55bd73a02ca202f835e590b3ad5c354 Author: Kevin Wang kevin.wang@arm.com Date: Fri Nov 10 17:12:32 2017 +0800

linux-gen: buffer: remove burst metadata from odp_buffer_hdr_t

The total packet meta data size was 7 cache lines for Linux-generic. For scalable scheduler, the burst metadata is not required. So just remove it for scalable scheduler. After the changes, the size of the meta data is 4 cache lines for Linux-generic.

Signed-off-by: Kevin Wang kevin.wang@arm.com Reviewed-by: Honnappa Nagarahalli honnappa.nagarahalli@arm.com Reviewed-by: Brian Brooks brian.brooks@arm.com Reviewed-by: Yi He yi.he@linaro.org

diff --git a/platform/linux-generic/Makefile.am b/platform/linux-generic/Makefile.am index 3c505495..56ef03c6 100644 --- a/platform/linux-generic/Makefile.am +++ b/platform/linux-generic/Makefile.am @@ -261,16 +261,9 @@ __LIB__libodp_linux_la_SOURCES = \ odp_pkt_queue.c \ odp_queue_if.c \ queue/subsystem.c \ - queue/generic.c \ - queue/scalable.c \ odp_rwlock.c \ odp_rwlock_recursive.c \ odp_schedule_if.c \ - schedule/generic.c \ - schedule/iquery.c \ - schedule/scalable.c \ - schedule/scalable_ordered.c \ - schedule/sp.c \ schedule/subsystem.c \ odp_shared_memory.c \ odp_sorted_list.c \ @@ -359,19 +352,29 @@ endif pool/generic.lo: AM_CFLAGS += -DIM_ACTIVE_MODULE buffer/generic.lo: AM_CFLAGS += -DIM_ACTIVE_MODULE if ODP_SCHEDULE_SCALABLE +__LIB__libodp_linux_la_SOURCES += schedule/scalable.c \ + schedule/scalable_ordered.c schedule/scalable.lo: AM_CFLAGS += -DIM_ACTIVE_MODULE else -schedule/generic.lo: AM_CFLAGS += -DIM_ACTIVE_MODULE -endif if ODP_SCHEDULE_SP +__LIB__libodp_linux_la_SOURCES += schedule/sp.c schedule/sp.lo: AM_CFLAGS += -DIM_ACTIVE_MODULE -endif +else if ODP_SCHEDULE_IQUERY +__LIB__libodp_linux_la_SOURCES += schedule/iquery.c schedule/iquery.lo: AM_CFLAGS += -DIM_ACTIVE_MODULE +else +__LIB__libodp_linux_la_SOURCES += schedule/generic.c +schedule/generic.lo: AM_CFLAGS += -DIM_ACTIVE_MODULE +endif endif +endif + if ODP_SCHEDULE_SCALABLE +__LIB__libodp_linux_la_SOURCES += queue/scalable.c queue/scalable.lo: AM_CFLAGS += -DIM_ACTIVE_MODULE else +__LIB__libodp_linux_la_SOURCES += queue/generic.c queue/generic.lo: AM_CFLAGS += -DIM_ACTIVE_MODULE endif

diff --git a/platform/linux-generic/include/odp_buffer_internal.h b/platform/linux-generic/include/odp_buffer_internal.h index 86f6208f..514e2479 100644 --- a/platform/linux-generic/include/odp_buffer_internal.h +++ b/platform/linux-generic/include/odp_buffer_internal.h @@ -73,6 +73,7 @@ struct odp_buffer_hdr_t { /* Segments */ seg_entry_t seg[CONFIG_PACKET_SEGS_PER_HDR];

+#ifndef ODP_SCHEDULE_SCALABLE /* Burst counts */ uint8_t burst_num; uint8_t burst_first; @@ -82,7 +83,7 @@ struct odp_buffer_hdr_t {

/* Burst table */ struct odp_buffer_hdr_t *burst[BUFFER_BURST_SIZE]; - +#endif /* --- Mostly read only data --- */

/* User context pointer or u64 */

-----------------------------------------------------------------------

Summary of changes: platform/linux-generic/Makefile.am | 23 ++++++++++++---------- .../linux-generic/include/odp_buffer_internal.h | 3 ++- 2 files changed, 15 insertions(+), 11 deletions(-)

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