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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: Tue, 4 May 2021 14:14:50 +0100
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Subject: [dpdk-dev] [PATCH v5 04/12] raw/ioat: expand descriptor struct to
full 64 bytes
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Although it's unused by the driver, add the interrupt handle field in
the descriptor to the descriptor structure for completeness, and
explicitly add the reserved padding field on the end of the structure
too. This means that when a descriptor is defined on the stack, or
initialized by the compiler, the unused/reserved space will be 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