From: Gage Eads <gage.eads@intel.com>
To: dev@dpdk.org
Cc: olivier.matz@6wind.com, arybchenko@solarflare.com,
bruce.richardson@intel.com, konstantin.ananyev@intel.com,
stephen@networkplumber.org, jerinj@marvell.com,
mczekaj@marvell.com, nd@arm.com, Ola.Liljedahl@arm.com
Subject: [PATCH v6 2/6] ring: add a ring start marker
Date: Wed, 6 Mar 2019 09:03:38 -0600 [thread overview]
Message-ID: <20190306150342.2894-3-gage.eads@intel.com> (raw)
In-Reply-To: <20190306150342.2894-1-gage.eads@intel.com>
This marker allows us to replace "&r[1]" with "&r->ring" to locate the
start of the ring.
Signed-off-by: Gage Eads <gage.eads@intel.com>
---
lib/librte_ring/rte_ring.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h
index c78db6916..f16d77b8a 100644
--- a/lib/librte_ring/rte_ring.h
+++ b/lib/librte_ring/rte_ring.h
@@ -118,6 +118,7 @@ struct rte_ring {
struct rte_ring_headtail_ptr cons_ptr __rte_cache_aligned;
};
char pad2 __rte_cache_aligned; /**< empty cache line */
+ void *ring[] __rte_cache_aligned; /**< empty marker for ring start */
};
#define RING_F_SP_ENQ 0x0001 /**< The default enqueue is "single-producer". */
@@ -361,7 +362,7 @@ __rte_ring_do_enqueue(struct rte_ring *r, void * const *obj_table,
if (n == 0)
goto end;
- ENQUEUE_PTRS(r, &r[1], prod_head, obj_table, n, void *);
+ ENQUEUE_PTRS(r, &r->ring, prod_head, obj_table, n, void *);
update_tail(&r->prod, prod_head, prod_next, is_sp, 1);
end:
@@ -403,7 +404,7 @@ __rte_ring_do_dequeue(struct rte_ring *r, void **obj_table,
if (n == 0)
goto end;
- DEQUEUE_PTRS(r, &r[1], cons_head, obj_table, n, void *);
+ DEQUEUE_PTRS(r, &r->ring, cons_head, obj_table, n, void *);
update_tail(&r->cons, cons_head, cons_next, is_sc, 0);
--
2.13.6
next prev parent reply other threads:[~2019-03-06 15:04 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-10 21:01 [PATCH 0/6] Add non-blocking ring Gage Eads
2019-01-10 21:01 ` [PATCH 1/6] ring: change head and tail to pointer-width size Gage Eads
2019-01-11 4:38 ` Stephen Hemminger
2019-01-11 19:07 ` Eads, Gage
2019-01-11 10:25 ` Burakov, Anatoly
2019-01-11 19:12 ` Eads, Gage
2019-01-11 19:55 ` Stephen Hemminger
2019-01-15 15:48 ` Eads, Gage
2019-01-11 10:40 ` Burakov, Anatoly
2019-01-11 10:58 ` Bruce Richardson
2019-01-11 11:30 ` Burakov, Anatoly
[not found] ` <20190111115851.GC3336@bricha3-MOBL.ger.corp.intel.com>
2019-01-11 19:27 ` Eads, Gage
2019-01-21 14:14 ` Burakov, Anatoly
2019-01-22 18:27 ` Eads, Gage
2019-01-10 21:01 ` [PATCH 2/6] ring: add a non-blocking implementation Gage Eads
2019-01-10 21:01 ` [PATCH 3/6] test_ring: add non-blocking ring autotest Gage Eads
2019-01-10 21:01 ` [PATCH 4/6] test_ring_perf: add non-blocking ring perf test Gage Eads
2019-01-10 21:01 ` [PATCH 5/6] mempool/ring: add non-blocking ring handlers Gage Eads
2019-01-13 13:43 ` Andrew Rybchenko
2019-01-10 21:01 ` [PATCH 6/6] doc: add NB ring comment to EAL "known issues" Gage Eads
2019-01-11 2:51 ` Varghese, Vipin
2019-01-11 19:30 ` Eads, Gage
2019-01-14 0:07 ` Varghese, Vipin
2019-01-15 23:52 ` [PATCH v2 0/5] Add non-blocking ring Gage Eads
2019-01-15 23:52 ` [PATCH v2 1/5] ring: change head and tail to pointer-width size Gage Eads
2019-01-15 23:52 ` [PATCH v2 2/5] ring: add a non-blocking implementation Gage Eads
2019-01-15 23:52 ` [PATCH v2 3/5] test_ring: add non-blocking ring autotest Gage Eads
2019-01-15 23:52 ` [PATCH v2 4/5] test_ring_perf: add non-blocking ring perf test Gage Eads
2019-01-15 23:52 ` [PATCH v2 5/5] mempool/ring: add non-blocking ring handlers Gage Eads
2019-01-16 0:26 ` [PATCH v2 0/5] Add non-blocking ring Stephen Hemminger
2019-01-18 15:23 ` [PATCH v3 " Gage Eads
2019-01-18 15:23 ` [PATCH v3 1/5] ring: add 64-bit headtail structure Gage Eads
2019-01-18 15:23 ` [PATCH v3 2/5] ring: add a non-blocking implementation Gage Eads
2019-01-22 10:12 ` Ola Liljedahl
2019-01-22 14:49 ` Ola Liljedahl
2019-01-22 21:31 ` Eads, Gage
2019-01-23 10:16 ` Ola Liljedahl
2019-01-25 17:21 ` Eads, Gage
2019-01-28 10:35 ` Ola Liljedahl
2019-01-28 18:54 ` Eads, Gage
2019-01-28 22:31 ` Ola Liljedahl
2019-01-28 13:34 ` Jerin Jacob Kollanukkaran
2019-01-28 13:43 ` Ola Liljedahl
2019-01-28 14:04 ` Jerin Jacob Kollanukkaran
2019-01-28 14:06 ` Ola Liljedahl
2019-01-28 18:59 ` Eads, Gage
2019-01-18 15:23 ` [PATCH v3 3/5] test_ring: add non-blocking ring autotest Gage Eads
2019-01-18 15:23 ` [PATCH v3 4/5] test_ring_perf: add non-blocking ring perf test Gage Eads
2019-01-18 15:23 ` [PATCH v3 5/5] mempool/ring: add non-blocking ring handlers Gage Eads
2019-01-22 9:27 ` [PATCH v3 0/5] Add non-blocking ring Ola Liljedahl
2019-01-22 10:15 ` Ola Liljedahl
2019-01-22 19:15 ` Eads, Gage
2019-01-23 16:02 ` Jerin Jacob Kollanukkaran
2019-01-23 16:29 ` Ola Liljedahl
2019-01-28 13:10 ` [EXT] " Jerin Jacob Kollanukkaran
2019-01-25 5:20 ` Honnappa Nagarahalli
2019-01-25 17:42 ` Eads, Gage
2019-01-25 17:56 ` Eads, Gage
2019-01-28 10:41 ` Ola Liljedahl
2019-01-28 18:14 ` [PATCH v4 " Gage Eads
2019-01-28 18:14 ` [PATCH v4 1/5] ring: add 64-bit headtail structure Gage Eads
2019-01-29 12:56 ` Ola Liljedahl
2019-01-30 4:26 ` Eads, Gage
2019-01-28 18:14 ` [PATCH v4 2/5] ring: add a non-blocking implementation Gage Eads
2019-01-28 18:14 ` [PATCH v4 3/5] test_ring: add non-blocking ring autotest Gage Eads
2019-01-28 18:14 ` [PATCH v4 4/5] test_ring_perf: add non-blocking ring perf test Gage Eads
2019-01-28 18:14 ` [PATCH v4 5/5] mempool/ring: add non-blocking ring handlers Gage Eads
2019-03-05 17:40 ` [PATCH v5 0/6] Add lock-free ring and mempool handler Gage Eads
2019-03-05 17:40 ` [PATCH v5 1/6] ring: add a pointer-width headtail structure Gage Eads
2019-03-05 17:40 ` [PATCH v5 2/6] ring: add a ring start marker Gage Eads
2019-03-05 17:40 ` [PATCH v5 3/6] ring: add a lock-free implementation Gage Eads
2019-03-05 17:40 ` [PATCH v5 4/6] test_ring: add lock-free ring autotest Gage Eads
2019-03-05 17:40 ` [PATCH v5 5/6] test_ring_perf: add lock-free ring perf test Gage Eads
2019-03-05 17:40 ` [PATCH v5 6/6] mempool/ring: add lock-free ring handlers Gage Eads
2019-03-06 15:03 ` [PATCH v6 0/6] Add lock-free ring and mempool handler Gage Eads
2019-03-06 15:03 ` [PATCH v6 1/6] ring: add a pointer-width headtail structure Gage Eads
2019-03-06 15:03 ` Gage Eads [this message]
2019-03-06 15:03 ` [PATCH v6 3/6] ring: add a lock-free implementation Gage Eads
2019-03-06 15:03 ` [PATCH v6 4/6] test_ring: add lock-free ring autotest Gage Eads
2019-03-06 15:03 ` [PATCH v6 5/6] test_ring_perf: add lock-free ring perf test Gage Eads
2019-03-06 15:03 ` [PATCH v6 6/6] mempool/ring: add lock-free ring handlers Gage Eads
2019-03-18 21:35 ` [PATCH v7 0/6] Add lock-free ring and mempool handler Gage Eads
2019-03-18 21:35 ` [PATCH v7 1/6] ring: add a pointer-width headtail structure Gage Eads
2019-03-18 21:35 ` [PATCH v7 2/6] ring: add a ring start marker Gage Eads
2019-03-18 21:35 ` [PATCH v7 3/6] ring: add a lock-free implementation Gage Eads
2019-03-19 15:50 ` Stephen Hemminger
2019-03-18 21:35 ` [PATCH v7 4/6] test_ring: add lock-free ring autotest Gage Eads
2019-03-18 21:35 ` [PATCH v7 5/6] test_ring_perf: add lock-free ring perf test Gage Eads
2019-03-18 21:35 ` [PATCH v7 6/6] mempool/ring: add lock-free ring handlers Gage Eads
2019-03-18 21:49 ` [PATCH v7 0/6] Add lock-free ring and mempool handler Eads, Gage
2019-03-19 15:51 ` Stephen Hemminger
2019-04-01 19:23 ` Eads, Gage
2019-04-02 10:16 ` Ola Liljedahl
2019-04-04 22:28 ` [dpdk-dev] " Eads, Gage
2019-03-19 1:20 ` [PATCH v8 " Gage Eads
2019-03-19 1:20 ` [PATCH v8 1/6] ring: add a pointer-width headtail structure Gage Eads
2019-03-19 1:20 ` [PATCH v8 2/6] ring: add a ring start marker Gage Eads
2019-03-19 1:20 ` [PATCH v8 3/6] ring: add a lock-free implementation Gage Eads
2019-03-19 1:20 ` [PATCH v8 4/6] test_ring: add lock-free ring autotest Gage Eads
2019-03-19 1:20 ` [PATCH v8 5/6] test_ring_perf: add lock-free ring perf test Gage Eads
2019-03-19 1:20 ` [PATCH v8 6/6] mempool/ring: add lock-free ring handlers Gage Eads
2019-04-03 16:46 ` [PATCH v8 0/6] Add lock-free ring and mempool handler Thomas Monjalon
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