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lib/idxd: add raw request for low level testing

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Provide an interface to allow the caller to provide a proprely
formatted descriptor.

Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: I5c397761f556361040ec962d61169459150b6494
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12703
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This commit is contained in:
paul luse 2022-05-16 13:06:08 -07:00 committed by Jim Harris
parent 000ee408e7
commit fe044f6988
3 changed files with 52 additions and 0 deletions
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19
include/spdk/idxd.h
View File

@ -333,6 +333,25 @@ int spdk_idxd_submit_decompress(struct spdk_idxd_io_channel *chan,
struct iovec *siov, uint32_t siovcnt,
int flags, spdk_idxd_req_cb cb_fn, void *cb_arg);
/**
* Build and submit an IDXD raw request.
*
* This function will process the supplied descriptor and then immediately submit
* by writing to the proper device portal.
*
* \param chan IDXD channel to submit request.
* \param desc proprely formatted IDXD descriptor. Memory addresses should be physical.
* The completion address will be filled in by the lower level library.
* \param cb_fn Callback function which will be called when the request is complete.
* \param cb_arg Opaque value which will be passed back as the arg parameter in
* the completion callback.
*
* \return 0 on success, negative errno on failure.
*/
int spdk_idxd_submit_raw_desc(struct spdk_idxd_io_channel *chan,
struct idxd_hw_desc *desc,
spdk_idxd_req_cb cb_fn, void *cb_arg);
/**
* Check for completed requests on an IDXD channel.
*

32
lib/idxd/idxd.c
View File

@ -1274,6 +1274,38 @@ spdk_idxd_submit_decompress(struct spdk_idxd_io_channel *chan,
return -EINVAL;
}
int
spdk_idxd_submit_raw_desc(struct spdk_idxd_io_channel *chan,
struct idxd_hw_desc *_desc,
spdk_idxd_req_cb cb_fn, void *cb_arg)
{
struct idxd_hw_desc *desc;
struct idxd_ops *op;
int rc, flags = 0;
uint64_t comp_addr;
assert(chan != NULL);
assert(_desc != NULL);
/* Common prep. */
rc = _idxd_prep_command(chan, cb_fn, cb_arg, flags, &desc, &op);
if (rc) {
return rc;
}
/* Command specific. */
flags = desc->flags;
comp_addr = desc->completion_addr;
memcpy(desc, _desc, sizeof(*desc));
desc->flags |= flags;
desc->completion_addr = comp_addr;
/* Submit operation. */
_submit_to_hw(chan, op);
return 0;
}
static inline void
_dump_sw_error_reg(struct spdk_idxd_io_channel *chan)
{

1
lib/idxd/spdk_idxd.map
View File

@ -24,6 +24,7 @@
spdk_idxd_submit_fill;
spdk_idxd_submit_compress;
spdk_idxd_submit_decompress;
spdk_idxd_submit_raw_desc;
spdk_idxd_process_events;
spdk_idxd_get_channel;
spdk_idxd_put_channel;