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[v5,04/12] raw/ioat: expand descriptor struct to full 64 bytes

Message ID 20210504131458.593429-5-bruce.richardson@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Thomas Monjalon
Headers show
Series ioat driver updates | expand


Context Check Description
ci/checkpatch success coding style OK

Commit Message

Bruce Richardson May 4, 2021, 1:14 p.m. UTC
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

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(-)
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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);