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From: Bruce Richardson <bruce.richardson@intel.com>
To: dev@dpdk.org
Cc: Yipeng Wang <yipeng1.wang@intel.com>
Subject: [dpdk-dev] [PATCH 2/4] hash: add local cache for TSX region
Date: Mon,  5 Nov 2018 17:39:11 +0000	[thread overview]
Message-ID: <20181105173913.61225-3-bruce.richardson@intel.com> (raw)
In-Reply-To: <20181105173913.61225-1-bruce.richardson@intel.com>

From: Yipeng Wang <yipeng1.wang@intel.com>

This patch adds back the local cache when TSX support is turned on.

When TSX is turned on, free key-data slot ring would be contended by
various TSX regions. The purpose of this commit is to reduce possible
memory collisions during key insertion.

Signed-off-by: Yipeng Wang <yipeng1.wang@intel.com>

---
 lib/librte_hash/rte_cuckoo_hash.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/librte_hash/rte_cuckoo_hash.c b/lib/librte_hash/rte_cuckoo_hash.c
index 76f5dc8..5d5f9f1 100644
--- a/lib/librte_hash/rte_cuckoo_hash.c
+++ b/lib/librte_hash/rte_cuckoo_hash.c
@@ -180,8 +180,10 @@ struct rte_hash *
 	}
 
 	/* Check extra flags field to check extra options. */
-	if (params->extra_flag & RTE_HASH_EXTRA_FLAGS_TRANS_MEM_SUPPORT)
+	if (params->extra_flag & RTE_HASH_EXTRA_FLAGS_TRANS_MEM_SUPPORT) {
+		use_local_cache = 1;
 		hw_trans_mem_support = 1;
+	}
 
 	if (params->extra_flag & RTE_HASH_EXTRA_FLAGS_MULTI_WRITER_ADD) {
 		use_local_cache = 1;
-- 
1.8.5.6

  parent reply	other threads:[~2018-11-05 17:39 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-05 17:39 [dpdk-dev] [PATCH 0/4] fixes for rte_hash with TSX Bruce Richardson
2018-11-05 17:39 ` [dpdk-dev] [PATCH 1/4] hash: fix TSX aborts with newer gcc Bruce Richardson
2018-11-05 17:39 ` Bruce Richardson [this message]
2018-11-09 15:59   ` [dpdk-dev] [PATCH 2/4] hash: add local cache for TSX region Bruce Richardson
2018-11-05 17:39 ` [dpdk-dev] [PATCH 3/4] eal/x86: reduce contention when retrying TSX Bruce Richardson
2018-11-05 17:39 ` [dpdk-dev] [PATCH 4/4] test/test: improve output for hash read-write test Bruce Richardson
2018-11-12 10:47 ` [dpdk-dev] [PATCH v2 0/4] fixes for rte_hash with TSX Bruce Richardson
2018-11-12 10:47   ` [dpdk-dev] [PATCH v2 1/4] hash: fix TSX aborts with newer gcc Bruce Richardson
2018-11-12 10:47   ` [dpdk-dev] [PATCH v2 2/4] hash: add local cache for TSX region Bruce Richardson
2018-11-12 18:34     ` Honnappa Nagarahalli
2018-11-13 16:40       ` [dpdk-dev] [dpdk-stable] " Thomas Monjalon
2018-11-13 17:16         ` Honnappa Nagarahalli
2018-11-13 17:24           ` Wang, Yipeng1
2018-11-13 17:48             ` Bruce Richardson
2018-11-12 10:47   ` [dpdk-dev] [PATCH v2 3/4] eal/x86: reduce contention when retrying TSX Bruce Richardson
2018-11-12 10:47   ` [dpdk-dev] [PATCH v2 4/4] test/test: improve output for hash read-write test Bruce Richardson
2018-11-14  0:06   ` [dpdk-dev] [PATCH v2 0/4] fixes for rte_hash with TSX Thomas Monjalon

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