[dpdk-dev,dpdk-dev,v1,1/3] cryptodev: set private data for session-less mode
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Commit Message
The application may want to store private data along with the
rte_crypto_op that is transparent to the rte_cryptodev layer.
For e.g., If an eventdev based application is submitting a
crypto session-less operation and wants to indicate event
information required to construct a new event that will be
enqueued to eventdev after completion of the crypto
operation. This patch provides a mechanism for the application
to associate this information with the rte_crypto_op in
session-less mode.
Signed-off-by: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
---
lib/librte_cryptodev/rte_crypto.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
Comments
> -----Original Message-----
> From: Gujjar, Abhinandan S
> Sent: Wednesday, April 4, 2018 7:34 AM
> To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>; Doherty, Declan
> <declan.doherty@intel.com>; jerin.jacob@caviumnetworks.com;
> hemant.agrawal@nxp.com; akhil.goyal@nxp.com; dev@dpdk.org
> Cc: Vangati, Narender <narender.vangati@intel.com>; Gujjar, Abhinandan S
> <abhinandan.gujjar@intel.com>; Rao, Nikhil <nikhil.rao@intel.com>
> Subject: [dpdk-dev,v1,1/3] cryptodev: set private data for session-less mode
>
> The application may want to store private data along with the rte_crypto_op
> that is transparent to the rte_cryptodev layer.
> For e.g., If an eventdev based application is submitting a crypto session-less
> operation and wants to indicate event information required to construct a new
> event that will be enqueued to eventdev after completion of the crypto
> operation. This patch provides a mechanism for the application to associate this
> information with the rte_crypto_op in session-less mode.
>
> Signed-off-by: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
> Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
> ---
> lib/librte_cryptodev/rte_crypto.h | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
@@ -84,8 +84,14 @@ struct rte_crypto_op {
*/
uint8_t sess_type;
/**< operation session type */
+ uint16_t private_data_offset;
+ /**< Offset to indicate start of private data (if any). The offset
+ * is counted from the start of the rte_crypto_op including IV.
+ * The private data may be used by the application to store
+ * information which should remain untouched in the library/driver
+ */
- uint8_t reserved[5];
+ uint8_t reserved[3];
/**< Reserved bytes to fill 64 bits for future additions */
struct rte_mempool *mempool;
/**< crypto operation mempool which operation is allocated from */