c2c8b4ebc7
When spdk_idxd_submit_crc32c() handles input
with multiple iovs (or multiple ops are generated
due to physically discontinuous buffers),
the first op has the original seed, while the
subsequent ops instruct the hardware to
to fetch the seed from the output of the previous op
(op->hw.crc32c_val):
void *prev_crc;
...
desc->flags |= IDXD_FLAG_FENCE | IDXD_FLAG_CRC_READ_CRC_SEED;
desc->crc32c.addr = (uint64_t)prev_crc; <<< virtual addr
The problem is the prev_crc is a virtual address,
so the hardware (at least with no IOMMU configured)
reports: DSA_COMP_HW_ERR1
spdk_idxd_process_events: Completion status 0x20
Solution:
Set crc32c.addr to the physical address of
the crc32c_val field in the previous desc.
Since desc->completion_addr already holds the physical address
of the dsa_hw_comp_record, we use this with the crc32c_val offset.
Signed-off-by: Anton Eidelman <anton@lightbitslabs.com>
Change-Id: I330e98c2f3fd6da5cb4fc03d0745df09a9ff0e0c
Signed-off-by: Anton Eidelman <anton@lightbitslabs.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14954
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: John Kariuki <John.K.Kariuki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
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| .. | ||
| idxd_internal.h | ||
| idxd_kernel.c | ||
| idxd_user.c | ||
| idxd.c | ||
| Makefile | ||
| spdk_idxd.map | ||