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From: Bruce Richardson <bruce.richardson@intel.com>
To: dev@dpdk.org
Cc: kevin.laatz@intel.com, sunil.pai.g@intel.com, jiayu.hu@intel.com,
Bruce Richardson <bruce.richardson@intel.com>
Date: Fri, 30 Apr 2021 12:17:19 +0100
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Subject: [dpdk-dev] [PATCH v3 04/12] raw/ioat: add explicit padding to
descriptor struct
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Add an explicit padding field to the end of the descriptor structure so
that when the batch descriptor is defined on the stack for perform-ops, the
unused space is all zeroed appropriately.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
drivers/raw/ioat/rte_ioat_rawdev_fns.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/raw/ioat/rte_ioat_rawdev_fns.h b/drivers/raw/ioat/rte_ioat_rawdev_fns.h
index c2c4601ca7..e96edc9053 100644
--- a/drivers/raw/ioat/rte_ioat_rawdev_fns.h
+++ b/drivers/raw/ioat/rte_ioat_rawdev_fns.h
@@ -140,7 +140,10 @@ struct rte_idxd_hw_desc {
uint32_t size; /* length of data for op, or batch size */
- /* 28 bytes of padding here */
+ uint16_t intr_handle; /* completion interrupt handle */
+
+ /* remaining 26 bytes are reserved */
+ uint16_t __reserved[13];
} __rte_aligned(64);
/**
--
2.30.2