From: Bruce Richardson <bruce.richardson@intel.com>
To: olivier.matz@6wind.com
Cc: thomas.monjalon@6wind.com, keith.wiles@intel.com,
konstantin.ananyev@intel.com, stephen@networkplumber.org,
dev@dpdk.org, Bruce Richardson <bruce.richardson@intel.com>
Subject: [dpdk-dev] [PATCH RFCv3 03/19] ring: create common structure for prod and cons metadata
Date: Tue, 7 Feb 2017 14:12:41 +0000 [thread overview]
Message-ID: <1486476777-24768-4-git-send-email-bruce.richardson@intel.com> (raw)
In-Reply-To: <20170125121456.GA24344@bricha3-MOBL3.ger.corp.intel.com>
create a common structure to hold the metadata for the producer and
the consumer, since both need essentially the same information - the
head and tail values, the ring size and mask.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
lib/librte_ring/rte_ring.h | 32 ++++++++++++++++----------------
1 file changed, 16 insertions(+), 16 deletions(-)
diff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h
index 1bc2571..0a5c9ff 100644
--- a/lib/librte_ring/rte_ring.h
+++ b/lib/librte_ring/rte_ring.h
@@ -1,7 +1,7 @@
/*-
* BSD LICENSE
*
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2010-2017 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -139,6 +139,19 @@ struct rte_ring_debug_stats {
struct rte_memzone; /* forward declaration, so as not to require memzone.h */
+/* structure to hold a pair of head/tail values and other metadata */
+struct rte_ring_ht_ptr {
+ volatile uint32_t head; /**< Prod/consumer head. */
+ volatile uint32_t tail; /**< Prod/consumer tail. */
+ uint32_t size; /**< Size of ring. */
+ uint32_t mask; /**< Mask (size-1) of ring. */
+ union {
+ uint32_t sp_enqueue; /**< True, if single producer. */
+ uint32_t sc_dequeue; /**< True, if single consumer. */
+ };
+ uint32_t watermark; /**< Max items before EDQUOT in producer. */
+};
+
/**
* An RTE ring structure.
*
@@ -161,23 +174,10 @@ struct rte_ring {
/**< Memzone, if any, containing the rte_ring */
/** Ring producer status. */
- struct prod {
- uint32_t watermark; /**< Maximum items before EDQUOT. */
- uint32_t sp_enqueue; /**< True, if single producer. */
- uint32_t size; /**< Size of ring. */
- uint32_t mask; /**< Mask (size-1) of ring. */
- volatile uint32_t head; /**< Producer head. */
- volatile uint32_t tail; /**< Producer tail. */
- } prod __rte_aligned(RTE_CACHE_LINE_SIZE * 2);
+ struct rte_ring_ht_ptr prod __rte_aligned(RTE_CACHE_LINE_SIZE * 2);
/** Ring consumer status. */
- struct cons {
- uint32_t sc_dequeue; /**< True, if single consumer. */
- uint32_t size; /**< Size of the ring. */
- uint32_t mask; /**< Mask (size-1) of ring. */
- volatile uint32_t head; /**< Consumer head. */
- volatile uint32_t tail; /**< Consumer tail. */
- } cons __rte_aligned(RTE_CACHE_LINE_SIZE * 2);
+ struct rte_ring_ht_ptr cons __rte_aligned(RTE_CACHE_LINE_SIZE * 2);
#ifdef RTE_LIBRTE_RING_DEBUG
struct rte_ring_debug_stats stats[RTE_MAX_LCORE];
--
2.9.3
next prev parent reply other threads:[~2017-02-07 14:13 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-25 12:14 [dpdk-dev] rte_ring features in use (or not) Bruce Richardson
2017-01-25 12:16 ` Bruce Richardson
2017-01-25 13:20 ` Olivier MATZ
2017-01-25 13:54 ` Bruce Richardson
2017-01-25 14:48 ` Bruce Richardson
2017-01-25 15:59 ` Wiles, Keith
2017-01-25 16:57 ` Bruce Richardson
2017-01-25 17:29 ` Ananyev, Konstantin
2017-01-31 10:53 ` Olivier Matz
2017-01-31 11:41 ` Bruce Richardson
2017-01-31 12:10 ` Bruce Richardson
2017-01-31 13:27 ` Olivier Matz
2017-01-31 13:46 ` Bruce Richardson
2017-01-25 22:27 ` Wiles, Keith
2017-01-25 16:39 ` Stephen Hemminger
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 00/19] ring cleanup and generalization Bruce Richardson
2017-02-14 8:32 ` Olivier Matz
2017-02-14 9:39 ` Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 01/19] app/pdump: fix duplicate macro definition Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 02/19] ring: remove split cacheline build setting Bruce Richardson
2017-02-07 14:12 ` Bruce Richardson [this message]
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 04/19] ring: add a function to return the ring size Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 05/19] crypto/null: use ring size function Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 06/19] ring: eliminate duplication of size and mask fields Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 07/19] ring: remove debug setting Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 08/19] ring: remove the yield when waiting for tail update Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 09/19] ring: remove watermark support Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 10/19] ring: make bulk and burst fn return vals consistent Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 11/19] ring: allow enq fns to return free space value Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 12/19] examples/quota_watermark: use ring space for watermarks Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 13/19] ring: allow dequeue fns to return remaining entry count Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 14/19] ring: reduce scope of local variables Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 15/19] ring: separate out head index manipulation for enq/deq Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 16/19] ring: create common function for updating tail idx Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 17/19] ring: allow macros to work with any type of object Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 18/19] ring: add object size parameter to memory size calculation Bruce Richardson
2017-02-07 14:12 ` [dpdk-dev] [PATCH RFCv3 19/19] ring: add event ring implementation Bruce Richardson
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