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* [dpdk-dev] [PATCH] mbuf: extend pktmbuf pool private structure
@ 2019-11-18 10:02 Shahaf Shuler
  2019-11-18 16:12 ` Stephen Hemminger
                   ` (2 more replies)
  0 siblings, 3 replies; 22+ messages in thread
From: Shahaf Shuler @ 2019-11-18 10:02 UTC (permalink / raw)
  To: olivier.matz, Thomas Monjalon, dev

With the API and ABI freeze ahead, it will be good to reserve
some bits on the private structure for future use.

Otherwise we will potentially need to maintain two different
private structure during 2020 period.

There is already one use case for those reserved bits[1]

The reserved field should be set to 0 by the user.

[1]
https://patches.dpdk.org/patch/63077/

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
---

Note - am aware no proper RFC was sent before the proposal
deadline of 19.11. However i hope this small change can be
accepeted for the sake of simpler maintainance in the future.

---
 lib/librte_mbuf/rte_mbuf.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 92d81972ab..6912594d57 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -303,6 +303,7 @@ rte_mbuf_to_priv(struct rte_mbuf *m)
 struct rte_pktmbuf_pool_private {
 	uint16_t mbuf_data_room_size; /**< Size of data space in each mbuf. */
 	uint16_t mbuf_priv_size;      /**< Size of private area in each mbuf. */
+	uint32_t reserved; /**< reserved for future use. */
 };
 
 #ifdef RTE_LIBRTE_MBUF_DEBUG
-- 
2.12.0


^ permalink raw reply	[flat|nested] 22+ messages in thread

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Thread overview: 22+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-11-18 10:02 [dpdk-dev] [PATCH] mbuf: extend pktmbuf pool private structure Shahaf Shuler
2019-11-18 16:12 ` Stephen Hemminger
2019-11-19  6:35   ` Shahaf Shuler
2019-11-19  9:32 ` Thomas Monjalon
2019-11-19 15:23   ` Shahaf Shuler
2019-11-19 16:25     ` Stephen Hemminger
2019-11-19 22:30       ` Thomas Monjalon
2019-11-19 23:50         ` Stephen Hemminger
2019-11-20  7:01           ` Shahaf Shuler
2019-11-20 15:56             ` Stephen Hemminger
2019-11-21 14:15               ` Olivier Matz
2019-11-21 12:28 ` [dpdk-dev] [PATCH v2] " Shahaf Shuler
2019-11-21 14:31   ` Olivier Matz
2019-11-24  5:52     ` Shahaf Shuler
2019-11-24  5:53   ` [dpdk-dev] [PATCH v3] " Shahaf Shuler
2019-11-24 17:50     ` Stephen Hemminger
2019-11-24 18:05       ` Thomas Monjalon
2019-11-24 18:10         ` Shahaf Shuler
2019-11-25  8:12     ` Olivier Matz
2019-11-25 10:21     ` [dpdk-dev] [PATCH v4] " Shahaf Shuler
2019-11-25 10:27       ` Olivier Matz
2019-11-25 21:42         ` Thomas Monjalon

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