patches for DPDK stable branches
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From: Wenwu Ma <wenwux.ma@intel.com>
To: dev@dpdk.org, fengchengwen@huawei.com
Cc: songx.jiale@intel.com, Wenwu Ma <wenwux.ma@intel.com>, stable@dpdk.org
Subject: [PATCH v2] dmadev: fix structure alignment
Date: Fri, 15 Mar 2024 09:43:31 +0800	[thread overview]
Message-ID: <20240315014331.1376720-1-wenwux.ma@intel.com> (raw)
In-Reply-To: <20240308053711.1260154-1-wenwux.ma@intel.com>

The structure rte_dma_dev needs only 8 byte alignment.
This patch replaces __rte_cache_aligned of rte_dma_dev
with __rte_aligned(8).

Fixes: b36970f2e13e ("dmadev: introduce DMA device library")
Cc: stable@dpdk.org

Signed-off-by: Wenwu Ma <wenwux.ma@intel.com>
---
v2:
 - Because of performance drop, adjust the code to
   no longer demand cache line alignment

---
 lib/dmadev/rte_dmadev_pmd.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/dmadev/rte_dmadev_pmd.h b/lib/dmadev/rte_dmadev_pmd.h
index 58729088ff..b569bb3502 100644
--- a/lib/dmadev/rte_dmadev_pmd.h
+++ b/lib/dmadev/rte_dmadev_pmd.h
@@ -122,7 +122,7 @@ enum rte_dma_dev_state {
  * @internal
  * The generic data structure associated with each DMA device.
  */
-struct __rte_cache_aligned rte_dma_dev {
+struct __rte_aligned(8) rte_dma_dev {
 	/** Device info which supplied during device initialization. */
 	struct rte_device *device;
 	struct rte_dma_dev_data *data; /**< Pointer to shared device data. */
-- 
2.25.1


  parent reply	other threads:[~2024-03-15  1:55 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-08  5:37 [PATCH] " Wenwu Ma
2024-03-08  7:01 ` fengchengwen
2024-03-15  1:43 ` Wenwu Ma [this message]
2024-03-15  6:02   ` [PATCH v2] " Tyler Retzlaff
2024-03-15  6:06   ` fengchengwen
2024-03-15  6:25     ` Ma, WenwuX
2024-03-15  7:44       ` Ma, WenwuX
2024-03-15  8:31         ` fengchengwen
2024-03-15  9:27           ` Ma, WenwuX
2024-03-20  4:11             ` fengchengwen
2024-03-20  7:34               ` Ma, WenwuX
2024-03-19  9:48   ` Jiale, SongX
2024-03-20  7:23 ` [PATCH v3] " Wenwu Ma
2024-03-20  9:31   ` fengchengwen
2024-06-27 12:46     ` Thomas Monjalon
2024-03-20 11:37   ` Thomas Monjalon
2024-03-21  1:25     ` Ma, WenwuX
2024-03-21  8:30       ` Thomas Monjalon
2024-03-21  8:57         ` Ma, WenwuX
2024-03-21  9:18         ` Ma, WenwuX
2024-03-21 10:06           ` Thomas Monjalon
2024-03-21 16:05             ` Tyler Retzlaff

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