[dpdk-dev] [dpdk-dev, v1, 1/5] eventdev: add caps API and PMD callbacks for crypto adapter

[dpdk-dev] [dpdk-dev, v1, 1/5] eventdev: add caps API and PMD callbacks for crypto adapter

[Abhinandan Gujjar]

Signed-off-by: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
---
 lib/librte_eventdev/rte_eventdev.c     |  25 +++++
 lib/librte_eventdev/rte_eventdev.h     |  35 +++++++
 lib/librte_eventdev/rte_eventdev_pmd.h | 176 +++++++++++++++++++++++++++++++++
 3 files changed, 236 insertions(+)

diff --git a/lib/librte_eventdev/rte_eventdev.c b/lib/librte_eventdev/rte_eventdev.c
index 2de8d9a..3d24e8f 100644
--- a/lib/librte_eventdev/rte_eventdev.c
+++ b/lib/librte_eventdev/rte_eventdev.c
@@ -29,6 +29,8 @@
 #include <rte_malloc.h>
 #include <rte_errno.h>
 #include <rte_ethdev.h>
+#include <rte_cryptodev.h>
+#include <rte_cryptodev_pmd.h>
 
 #include "rte_eventdev.h"
 #include "rte_eventdev_pmd.h"
@@ -123,6 +125,29 @@
 				: 0;
 }
 
+int __rte_experimental
+rte_event_crypto_adapter_caps_get(uint8_t dev_id, uint8_t cdev_id,
+				  uint32_t *caps)
+{
+	struct rte_eventdev *dev;
+	struct rte_cryptodev *cdev;
+
+	RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+	if (!rte_cryptodev_pmd_is_valid_dev(cdev_id))
+		return -EINVAL;
+
+	dev = &rte_eventdevs[dev_id];
+	cdev = rte_cryptodev_pmd_get_dev(cdev_id);
+
+	if (caps == NULL)
+		return -EINVAL;
+	*caps = 0;
+
+	return dev->dev_ops->crypto_adapter_caps_get ?
+		(*dev->dev_ops->crypto_adapter_caps_get)
+		(dev, cdev, caps) : 0;
+}
+
 static inline int
 rte_event_dev_queue_config(struct rte_eventdev *dev, uint8_t nb_queues)
 {
diff --git a/lib/librte_eventdev/rte_eventdev.h b/lib/librte_eventdev/rte_eventdev.h
index a20077c..49a71d1 100644
--- a/lib/librte_eventdev/rte_eventdev.h
+++ b/lib/librte_eventdev/rte_eventdev.h
@@ -35,6 +35,8 @@
 #ifndef _RTE_EVENTDEV_H_
 #define _RTE_EVENTDEV_H_
 
+#include <rte_compat.h>
+
 /**
  * @file
  *
@@ -1142,6 +1144,39 @@ struct rte_event {
 rte_event_eth_rx_adapter_caps_get(uint8_t dev_id, uint8_t eth_port_id,
 				uint32_t *caps);
 
+
+/* Crypto adapter capability bitmap flag */
+#define RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT	0x1
+/**< Flag indicates HW is capable of generating events.
+ * Cryptodev can send packets to the event device using an internal event port.
+ */
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Retrieve the event device's crypto adapter capabilities for the
+ * specified cryptodev device
+ *
+ * @param dev_id
+ *   The identifier of the device.
+ *
+ * @param cdev_id
+ *   The identifier of the cryptodev device.
+ *
+ * @param[out] caps
+ *   A pointer to memory filled with event adapter capabilities.
+ *
+ * @return
+ *   - 0: Success, driver provides event adapter capabilities for the
+ *	cryptodev device.
+ *   - <0: Error code returned by the driver function.
+ *
+ */
+int __rte_experimental
+rte_event_crypto_adapter_caps_get(uint8_t dev_id, uint8_t cdev_id,
+				  uint32_t *caps);
+
 struct rte_eventdev_driver;
 struct rte_eventdev_ops;
 struct rte_eventdev;
diff --git a/lib/librte_eventdev/rte_eventdev_pmd.h b/lib/librte_eventdev/rte_eventdev_pmd.h
index 3a8ddd7..656d160 100644
--- a/lib/librte_eventdev/rte_eventdev_pmd.h
+++ b/lib/librte_eventdev/rte_eventdev_pmd.h
@@ -585,6 +585,167 @@ typedef int (*eventdev_eth_rx_adapter_stats_reset)
  */
 typedef int (*eventdev_selftest)(void);
 
+
+struct rte_cryptodev;
+/**
+ * This API may change without prior notice
+ *
+ * Retrieve the event device's crypto adapter capabilities for the
+ * specified cryptodev
+ *
+ * @param dev
+ *   Event device pointer
+ *
+ * @param cdev
+ *   cryptodev pointer
+ *
+ * @param[out] caps
+ *   A pointer to memory filled with event adapter capabilities.
+ *
+ * @return
+ *   - 0: Success, driver provides event adapter capabilities for the
+ *	cryptodev.
+ *   - <0: Error code returned by the driver function.
+ *
+ */
+typedef int (*eventdev_crypto_adapter_caps_get_t)
+					(const struct rte_eventdev *dev,
+					const struct rte_cryptodev *cdev,
+					uint32_t *caps);
+
+/**
+ * This API may change without prior notice
+ *
+ * Add crypto queue pair to event device. This callback is invoked if
+ * the caps returned from rte_event_crypto_adapter_caps_get(, cdev_id)
+ * has RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT set.
+ *
+ * @param dev
+ *   Event device pointer
+ *
+ * @param cdev
+ *   cryptodev pointer
+ *
+ * @param[out] queue_pair_id
+ *   cryptodev queue pair indentifier.
+ *
+ * @return
+ *   - 0: Success, cryptodev queue pair added successfully.
+ *   - <0: Error code returned by the driver function.
+ *
+ */
+typedef int (*eventdev_crypto_adapter_queue_pair_add_t)
+					(const struct rte_eventdev *dev,
+					const struct rte_cryptodev *cdev,
+					int32_t queue_pair_id);
+
+
+/**
+ * This API may change without prior notice
+ *
+ * Delete crypto queue pair to event device. This callback is invoked if
+ * the caps returned from rte_event_crypto_adapter_caps_get(, cdev_id)
+ * has RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT set.
+ *
+ * @param dev
+ *   Event device pointer
+ *
+ * @param cdev
+ *   cryptodev pointer
+ *
+ * @param[out] queue_pair_id
+ *   cryptodev queue pair indentifier.
+ *
+ * @return
+ *   - 0: Success, cryptodev queue pair deleted successfully.
+ *   - <0: Error code returned by the driver function.
+ *
+ */
+typedef int (*eventdev_crypto_adapter_queue_pair_del_t)
+					(const struct rte_eventdev *dev,
+					const struct rte_cryptodev *cdev,
+					int32_t queue_pair_id);
+
+/**
+ * Start crypto adapter. This callback is invoked if
+ * the caps returned from rte_event_crypto_adapter_caps_get(.., cdev_id)
+ * has RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT set and queue pairs
+ * from cdev_id have been added to the event device.
+ *
+ * @param dev
+ *   Event device pointer
+ *
+ * @param cdev
+ *   Crypto device pointer
+ *
+ * @return
+ *   - 0: Success, crypto adapter started successfully.
+ *   - <0: Error code returned by the driver function.
+ */
+typedef int (*eventdev_crypto_adapter_start_t)
+					(const struct rte_eventdev *dev,
+					 const struct rte_cryptodev *cdev);
+
+/**
+ * Stop crypto adapter. This callback is invoked if
+ * the caps returned from rte_event_crypto_adapter_caps_get(.., cdev_id)
+ * has RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT set and queue pairs
+ * from cdev_id have been added to the event device.
+ *
+ * @param dev
+ *   Event device pointer
+ *
+ * @param cdev
+ *   Crypto device pointer
+ *
+ * @return
+ *   - 0: Success, crypto adapter stopped successfully.
+ *   - <0: Error code returned by the driver function.
+ */
+typedef int (*eventdev_crypto_adapter_stop_t)
+					(const struct rte_eventdev *dev,
+					 const struct rte_cryptodev *cdev);
+
+struct rte_event_crypto_adapter_stats;
+
+/**
+ * Retrieve crypto adapter statistics.
+ *
+ * @param dev
+ *   Event device pointer
+ *
+ * @param cdev
+ *   Crypto device pointer
+ *
+ * @param[out] stats
+ *   Pointer to stats structure
+ *
+ * @return
+ *   Return 0 on success.
+ */
+
+typedef int (*eventdev_crypto_adapter_stats_get)
+			(const struct rte_eventdev *dev,
+			const struct rte_cryptodev *cdev,
+			struct rte_event_crypto_adapter_stats *stats);
+
+/**
+ * Reset crypto adapter statistics.
+ *
+ * @param dev
+ *   Event device pointer
+ *
+ * @param cdev
+ *   Crypto device pointer
+ *
+ * @return
+ *   Return 0 on success.
+ */
+
+typedef int (*eventdev_crypto_adapter_stats_reset)
+			(const struct rte_eventdev *dev,
+			const struct rte_cryptodev *cdev);
+
 /** Event device operations function pointer table */
 struct rte_eventdev_ops {
 	eventdev_info_get_t dev_infos_get;	/**< Get device info. */
@@ -640,6 +801,21 @@ struct rte_eventdev_ops {
 	eventdev_eth_rx_adapter_stats_reset eth_rx_adapter_stats_reset;
 	/**< Reset ethernet Rx stats */
 
+	eventdev_crypto_adapter_caps_get_t crypto_adapter_caps_get;
+	/**< Get crypto adapter capabilities */
+	eventdev_crypto_adapter_queue_pair_add_t crypto_adapter_queue_pair_add;
+	/**< Add queue pair to crypto adapter */
+	eventdev_crypto_adapter_queue_pair_del_t crypto_adapter_queue_pair_del;
+	/**< Delete queue pair from crypto adapter */
+	eventdev_crypto_adapter_start_t crypto_adapter_start;
+	/**< Start crypto adapter */
+	eventdev_crypto_adapter_stop_t crypto_adapter_stop;
+	/**< Stop crypto adapter */
+	eventdev_crypto_adapter_stats_get crypto_adapter_stats_get;
+	/**< Get crypto stats */
+	eventdev_crypto_adapter_stats_reset crypto_adapter_stats_reset;
+	/**< Reset crypto stats */
+
 	eventdev_selftest dev_selftest;
 	/**< Start eventdev Selftest */
 
-- 
1.9.1

Re: [dpdk-dev] [dpdk-dev, v1, 1/5] eventdev: add caps API and PMD callbacks for crypto adapter

[Jerin Jacob]

-----Original Message-----
> Date: Wed, 4 Apr 2018 12:26:18 +0530
> From: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
> To: jerin.jacob@caviumnetworks.com, hemant.agrawal@nxp.com,
>  akhil.goyal@nxp.com, dev@dpdk.org
> CC: pablo.de.lara.guarch@intel.com, declan.doherty@intel.com,
>  narender.vangati@intel.com, abhinandan.gujjar@intel.com,
>  nikhil.rao@intel.com
> Subject: [dpdk-dev,v1,1/5] eventdev: add caps API and PMD callbacks for
>  crypto adapter
> X-Mailer: git-send-email 1.9.1
> 
> Signed-off-by: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
> ---
>  lib/librte_eventdev/rte_eventdev.c     |  25 +++++
>  lib/librte_eventdev/rte_eventdev.h     |  35 +++++++
>  lib/librte_eventdev/rte_eventdev_pmd.h | 176 +++++++++++++++++++++++++++++++++
>  3 files changed, 236 insertions(+)
> 
> diff --git a/lib/librte_eventdev/rte_eventdev.c b/lib/librte_eventdev/rte_eventdev.c
> index 2de8d9a..3d24e8f 100644
> --- a/lib/librte_eventdev/rte_eventdev.c
> +++ b/lib/librte_eventdev/rte_eventdev.c
> @@ -29,6 +29,8 @@
>  #include <rte_malloc.h>
>  #include <rte_errno.h>
>  #include <rte_ethdev.h>
> +#include <rte_cryptodev.h>
> +#include <rte_cryptodev_pmd.h>
>  
>  #include "rte_eventdev.h"
>  #include "rte_eventdev_pmd.h"
> @@ -123,6 +125,29 @@
>  				: 0;
>  }
>  
> +int __rte_experimental
> +rte_event_crypto_adapter_caps_get(uint8_t dev_id, uint8_t cdev_id,
> +				  uint32_t *caps)
> +{
> +	struct rte_eventdev *dev;
> +	struct rte_cryptodev *cdev;
> +
> +	RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
> +	if (!rte_cryptodev_pmd_is_valid_dev(cdev_id))
> +		return -EINVAL;
> +
> +	dev = &rte_eventdevs[dev_id];
> +	cdev = rte_cryptodev_pmd_get_dev(cdev_id);
> +
> +	if (caps == NULL)
> +		return -EINVAL;
> +	*caps = 0;
> +
> +	return dev->dev_ops->crypto_adapter_caps_get ?
> +		(*dev->dev_ops->crypto_adapter_caps_get)
> +		(dev, cdev, caps) : 0;
> +}
> +
>  static inline int
>  rte_event_dev_queue_config(struct rte_eventdev *dev, uint8_t nb_queues)
>  {
> diff --git a/lib/librte_eventdev/rte_eventdev.h b/lib/librte_eventdev/rte_eventdev.h
> index a20077c..49a71d1 100644
> --- a/lib/librte_eventdev/rte_eventdev.h
> +++ b/lib/librte_eventdev/rte_eventdev.h
> @@ -35,6 +35,8 @@
>  #ifndef _RTE_EVENTDEV_H_
>  #define _RTE_EVENTDEV_H_
>  
> +#include <rte_compat.h>
> +
>  /**
>   * @file
>   *
> @@ -1142,6 +1144,39 @@ struct rte_event {
>  rte_event_eth_rx_adapter_caps_get(uint8_t dev_id, uint8_t eth_port_id,
>  				uint32_t *caps);
>  
> +
> +/* Crypto adapter capability bitmap flag */
> +#define RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT	0x1
> +/**< Flag indicates HW is capable of generating events.
> + * Cryptodev can send packets to the event device using an internal event port.
> + */

Some top level comments,

1) Since we are not planning to abstract RTE_EVENT_CRYPTO_ADAPTER_ENQ_DEQ
mode inside the adapter, I think, it make sense to introduce new
capability. ie. In some of the HW implementation, We could maintain the
packet order even if source queue/scheded_type is ORDERED. ie. if the capability
is set then application can use RTE_EVENT_CRYPTO_ADAPTER_DEQ_ONLY to maintain
the ingress order even if it is been called from multiple CPU in
ORDERED/ATOMIC context instead of using RTE_EVENT_CRYPTO_ADAPTER_ENQ_DEQ
mode.

2) Please split the 2/5 to patch specification and implementation

3) I think, we need to give a example code snippet in the programmer
guide on how to use RTE_EVENT_CRYPTO_ADAPTER_ENQ_DEQ mode in conjunction
with rte_event_crypto_adapter_event_port_get().

Let me know your views?

Re: [dpdk-dev] [dpdk-dev, v1, 1/5] eventdev: add caps API and PMD callbacks for crypto adapter

[Gujjar, Abhinandan S]

Hi Jerin,

Please find some comments inline

> -----Original Message-----
> From: Jerin Jacob [mailto:jerin.jacob@caviumnetworks.com]
> Sent: Tuesday, April 10, 2018 11:38 AM
> To: Gujjar, Abhinandan S <abhinandan.gujjar@intel.com>
> Cc: hemant.agrawal@nxp.com; akhil.goyal@nxp.com; dev@dpdk.org; De Lara
> Guarch, Pablo <pablo.de.lara.guarch@intel.com>; Doherty, Declan
> <declan.doherty@intel.com>; Vangati, Narender
> <narender.vangati@intel.com>; Rao, Nikhil <nikhil.rao@intel.com>;
> Nidadavolu.Murthy@cavium.com; NarayanaPrasad.Athreya@cavium.com
> Subject: Re: [dpdk-dev,v1,1/5] eventdev: add caps API and PMD callbacks for
> crypto adapter
> 
> -----Original Message-----
> > Date: Wed, 4 Apr 2018 12:26:18 +0530
> > From: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
> > To: jerin.jacob@caviumnetworks.com, hemant.agrawal@nxp.com,
> > akhil.goyal@nxp.com, dev@dpdk.org
> > CC: pablo.de.lara.guarch@intel.com, declan.doherty@intel.com,
> > narender.vangati@intel.com, abhinandan.gujjar@intel.com,
> > nikhil.rao@intel.com
> > Subject: [dpdk-dev,v1,1/5] eventdev: add caps API and PMD callbacks
> > for  crypto adapter
> > X-Mailer: git-send-email 1.9.1
> >
> > Signed-off-by: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
> > ---
> >  lib/librte_eventdev/rte_eventdev.c     |  25 +++++
> >  lib/librte_eventdev/rte_eventdev.h     |  35 +++++++
> >  lib/librte_eventdev/rte_eventdev_pmd.h | 176
> > +++++++++++++++++++++++++++++++++
> >  3 files changed, 236 insertions(+)
> >
> > diff --git a/lib/librte_eventdev/rte_eventdev.c
> > b/lib/librte_eventdev/rte_eventdev.c
> > index 2de8d9a..3d24e8f 100644
> > --- a/lib/librte_eventdev/rte_eventdev.c
> > +++ b/lib/librte_eventdev/rte_eventdev.c
> > @@ -29,6 +29,8 @@
> >  #include <rte_malloc.h>
> >  #include <rte_errno.h>
> >  #include <rte_ethdev.h>
> > +#include <rte_cryptodev.h>
> > +#include <rte_cryptodev_pmd.h>
> >
> >  #include "rte_eventdev.h"
> >  #include "rte_eventdev_pmd.h"
> > @@ -123,6 +125,29 @@
> >  				: 0;
> >  }
> >
> > +int __rte_experimental
> > +rte_event_crypto_adapter_caps_get(uint8_t dev_id, uint8_t cdev_id,
> > +				  uint32_t *caps)
> > +{
> > +	struct rte_eventdev *dev;
> > +	struct rte_cryptodev *cdev;
> > +
> > +	RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
> > +	if (!rte_cryptodev_pmd_is_valid_dev(cdev_id))
> > +		return -EINVAL;
> > +
> > +	dev = &rte_eventdevs[dev_id];
> > +	cdev = rte_cryptodev_pmd_get_dev(cdev_id);
> > +
> > +	if (caps == NULL)
> > +		return -EINVAL;
> > +	*caps = 0;
> > +
> > +	return dev->dev_ops->crypto_adapter_caps_get ?
> > +		(*dev->dev_ops->crypto_adapter_caps_get)
> > +		(dev, cdev, caps) : 0;
> > +}
> > +
> >  static inline int
> >  rte_event_dev_queue_config(struct rte_eventdev *dev, uint8_t
> > nb_queues)  { diff --git a/lib/librte_eventdev/rte_eventdev.h
> > b/lib/librte_eventdev/rte_eventdev.h
> > index a20077c..49a71d1 100644
> > --- a/lib/librte_eventdev/rte_eventdev.h
> > +++ b/lib/librte_eventdev/rte_eventdev.h
> > @@ -35,6 +35,8 @@
> >  #ifndef _RTE_EVENTDEV_H_
> >  #define _RTE_EVENTDEV_H_
> >
> > +#include <rte_compat.h>
> > +
> >  /**
> >   * @file
> >   *
> > @@ -1142,6 +1144,39 @@ struct rte_event {
> > rte_event_eth_rx_adapter_caps_get(uint8_t dev_id, uint8_t eth_port_id,
> >  				uint32_t *caps);
> >
> > +
> > +/* Crypto adapter capability bitmap flag */
> > +#define RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT	0x1
> > +/**< Flag indicates HW is capable of generating events.
> > + * Cryptodev can send packets to the event device using an internal event
> port.
> > + */
> 
> Some top level comments,
> 
> 1) Since we are not planning to abstract
> RTE_EVENT_CRYPTO_ADAPTER_ENQ_DEQ mode inside the adapter, I think, it
> make sense to introduce new capability. ie. In some of the HW implementation,
> We could maintain the packet order even if source queue/scheded_type is
> ORDERED. ie. if the capability is set then application can use
> RTE_EVENT_CRYPTO_ADAPTER_DEQ_ONLY to maintain the ingress order even
> if it is been called from multiple CPU in ORDERED/ATOMIC context instead of
> using RTE_EVENT_CRYPTO_ADAPTER_ENQ_DEQ mode.
Sure. I will add ENQ-DEQ into caps.

> 
> 2) Please split the 2/5 to patch specification and implementation
Ok
> 
> 3) I think, we need to give a example code snippet in the programmer guide on
> how to use RTE_EVENT_CRYPTO_ADAPTER_ENQ_DEQ mode in conjunction with
> rte_event_crypto_adapter_event_port_get().
I have added a test case in the test app to show usage of rte_event_crypto_adapter_event_port_get().
I will update the programmer guide too.

Regards
Abhinandan
> 
> Let me know your views?

Re: [dpdk-dev] [dpdk-dev, v1, 1/5] eventdev: add caps API and PMD callbacks for crypto adapter

[Akhil Goyal]

It would be good if we have a cover letter and description in the commit 
message.

The patchset does not apply on eventdev subtree. Could you please rebase.

I think there is a need to add struct rte_crypto_op in the rte_event 
word 1 union as you are adding crypto event. All crypto drivers would 
process crypto op and not mbuf.

Also, I guess the patchset is dependent on another patchset. Please 
mention that also in the cover letter.

On 4/4/2018 12:26 PM, Abhinandan Gujjar wrote:
> Signed-off-by: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
> ---
>   lib/librte_eventdev/rte_eventdev.c     |  25 +++++
>   lib/librte_eventdev/rte_eventdev.h     |  35 +++++++
>   lib/librte_eventdev/rte_eventdev_pmd.h | 176 +++++++++++++++++++++++++++++++++
>   3 files changed, 236 insertions(+)
> 
> diff --git a/lib/librte_eventdev/rte_eventdev.c b/lib/librte_eventdev/rte_eventdev.c
> index 2de8d9a..3d24e8f 100644
> --- a/lib/librte_eventdev/rte_eventdev.c
> +++ b/lib/librte_eventdev/rte_eventdev.c
> @@ -29,6 +29,8 @@
>   #include <rte_malloc.h>
>   #include <rte_errno.h>
>   #include <rte_ethdev.h>
> +#include <rte_cryptodev.h>
> +#include <rte_cryptodev_pmd.h>
>   
>   #include "rte_eventdev.h"
>   #include "rte_eventdev_pmd.h"
> @@ -123,6 +125,29 @@
>   				: 0;
>   }
>   
> +int __rte_experimental
> +rte_event_crypto_adapter_caps_get(uint8_t dev_id, uint8_t cdev_id,
> +				  uint32_t *caps)
> +{
> +	struct rte_eventdev *dev;
> +	struct rte_cryptodev *cdev;
> +
> +	RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
> +	if (!rte_cryptodev_pmd_is_valid_dev(cdev_id))
> +		return -EINVAL;
> +
> +	dev = &rte_eventdevs[dev_id];
> +	cdev = rte_cryptodev_pmd_get_dev(cdev_id);
> +
> +	if (caps == NULL)
> +		return -EINVAL;
It is expected that caps memory is initialized by the caller. This 
should be mentioned in the description of the API.
> +	*caps = 0;
> +
> +	return dev->dev_ops->crypto_adapter_caps_get ?
> +		(*dev->dev_ops->crypto_adapter_caps_get)
> +		(dev, cdev, caps) : 0;

It should be -ENOTSUP instead of 0. I think same needs to be corrected 
for eth rx adapter.

> +}
> +
>   static inline int
>   rte_event_dev_queue_config(struct rte_eventdev *dev, uint8_t nb_queues)
>   {
> diff --git a/lib/librte_eventdev/rte_eventdev.h b/lib/librte_eventdev/rte_eventdev.h
> index a20077c..49a71d1 100644
> --- a/lib/librte_eventdev/rte_eventdev.h
> +++ b/lib/librte_eventdev/rte_eventdev.h
> @@ -35,6 +35,8 @@
>   #ifndef _RTE_EVENTDEV_H_
>   #define _RTE_EVENTDEV_H_
>   
> +#include <rte_compat.h>
> +
>   /**
>    * @file
>    *
> @@ -1142,6 +1144,39 @@ struct rte_event {
>   rte_event_eth_rx_adapter_caps_get(uint8_t dev_id, uint8_t eth_port_id,
>   				uint32_t *caps);
>   
> +
> +/* Crypto adapter capability bitmap flag */
> +#define RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT	0x1
> +/**< Flag indicates HW is capable of generating events.
> + * Cryptodev can send packets to the event device using an internal event port.
> + */
> +
> +/**
> + * @warning
> + * @b EXPERIMENTAL: this API may change without prior notice
> + *
> + * Retrieve the event device's crypto adapter capabilities for the
> + * specified cryptodev device
> + *
> + * @param dev_id
> + *   The identifier of the device.
> + *
> + * @param cdev_id
> + *   The identifier of the cryptodev device.
> + *
> + * @param[out] caps
> + *   A pointer to memory filled with event adapter capabilities.
> + *
> + * @return
> + *   - 0: Success, driver provides event adapter capabilities for the
> + *	cryptodev device.
> + *   - <0: Error code returned by the driver function.
> + *
> + */
> +int __rte_experimental
> +rte_event_crypto_adapter_caps_get(uint8_t dev_id, uint8_t cdev_id,
> +				  uint32_t *caps);
> +
>   struct rte_eventdev_driver;
>   struct rte_eventdev_ops;
>   struct rte_eventdev;
> diff --git a/lib/librte_eventdev/rte_eventdev_pmd.h b/lib/librte_eventdev/rte_eventdev_pmd.h
> index 3a8ddd7..656d160 100644
> --- a/lib/librte_eventdev/rte_eventdev_pmd.h
> +++ b/lib/librte_eventdev/rte_eventdev_pmd.h
> @@ -585,6 +585,167 @@ typedef int (*eventdev_eth_rx_adapter_stats_reset)
>    */
>   typedef int (*eventdev_selftest)(void);
>   
> +
> +struct rte_cryptodev;
> +/**
> + * This API may change without prior notice
> + *
> + * Retrieve the event device's crypto adapter capabilities for the
> + * specified cryptodev
> + *
> + * @param dev
> + *   Event device pointer
> + *
> + * @param cdev
> + *   cryptodev pointer
> + *
> + * @param[out] caps
> + *   A pointer to memory filled with event adapter capabilities.
> + *
> + * @return
> + *   - 0: Success, driver provides event adapter capabilities for the
> + *	cryptodev.
> + *   - <0: Error code returned by the driver function.
> + *
> + */
> +typedef int (*eventdev_crypto_adapter_caps_get_t)
> +					(const struct rte_eventdev *dev,
> +					const struct rte_cryptodev *cdev,
> +					uint32_t *caps);
> +
> +/**
> + * This API may change without prior notice
> + *
> + * Add crypto queue pair to event device. This callback is invoked if
> + * the caps returned from rte_event_crypto_adapter_caps_get(, cdev_id)
> + * has RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT set.
> + *
> + * @param dev
> + *   Event device pointer
> + *
> + * @param cdev
> + *   cryptodev pointer
> + *
> + * @param[out] queue_pair_id
> + *   cryptodev queue pair indentifier.
spell check.
> + *
> + * @return
> + *   - 0: Success, cryptodev queue pair added successfully.
> + *   - <0: Error code returned by the driver function.
> + *
> + */
> +typedef int (*eventdev_crypto_adapter_queue_pair_add_t)
> +					(const struct rte_eventdev *dev,
> +					const struct rte_cryptodev *cdev,
> +					int32_t queue_pair_id);
> +
> +
> +/**
> + * This API may change without prior notice
> + *
> + * Delete crypto queue pair to event device. This callback is invoked if
> + * the caps returned from rte_event_crypto_adapter_caps_get(, cdev_id)
> + * has RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT set.
> + *
> + * @param dev
> + *   Event device pointer
> + *
> + * @param cdev
> + *   cryptodev pointer
> + *
> + * @param[out] queue_pair_id
> + *   cryptodev queue pair indentifier.
spell check
> + *
> + * @return
> + *   - 0: Success, cryptodev queue pair deleted successfully.
> + *   - <0: Error code returned by the driver function.
> + *
> + */
> +typedef int (*eventdev_crypto_adapter_queue_pair_del_t)
> +					(const struct rte_eventdev *dev,
> +					const struct rte_cryptodev *cdev,
> +					int32_t queue_pair_id);
> +
> +/**
> + * Start crypto adapter. This callback is invoked if
> + * the caps returned from rte_event_crypto_adapter_caps_get(.., cdev_id)
> + * has RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT set and queue pairs
> + * from cdev_id have been added to the event device.
> + *
> + * @param dev
> + *   Event device pointer
> + *
> + * @param cdev
> + *   Crypto device pointer
> + *
> + * @return
> + *   - 0: Success, crypto adapter started successfully.
> + *   - <0: Error code returned by the driver function.
> + */
> +typedef int (*eventdev_crypto_adapter_start_t)
> +					(const struct rte_eventdev *dev,
> +					 const struct rte_cryptodev *cdev);
> +
> +/**
> + * Stop crypto adapter. This callback is invoked if
> + * the caps returned from rte_event_crypto_adapter_caps_get(.., cdev_id)
> + * has RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT set and queue pairs
> + * from cdev_id have been added to the event device.
> + *
> + * @param dev
> + *   Event device pointer
> + *
> + * @param cdev
> + *   Crypto device pointer
> + *
> + * @return
> + *   - 0: Success, crypto adapter stopped successfully.
> + *   - <0: Error code returned by the driver function.
> + */
> +typedef int (*eventdev_crypto_adapter_stop_t)
> +					(const struct rte_eventdev *dev,
> +					 const struct rte_cryptodev *cdev);
> +
> +struct rte_event_crypto_adapter_stats;
> +
> +/**
> + * Retrieve crypto adapter statistics.
> + *
> + * @param dev
> + *   Event device pointer
> + *
> + * @param cdev
> + *   Crypto device pointer
> + *
> + * @param[out] stats
> + *   Pointer to stats structure
> + *
> + * @return
> + *   Return 0 on success.
> + */
> +
> +typedef int (*eventdev_crypto_adapter_stats_get)
> +			(const struct rte_eventdev *dev,
> +			const struct rte_cryptodev *cdev,
> +			struct rte_event_crypto_adapter_stats *stats);
> +
> +/**
> + * Reset crypto adapter statistics.
> + *
> + * @param dev
> + *   Event device pointer
> + *
> + * @param cdev
> + *   Crypto device pointer
> + *
> + * @return
> + *   Return 0 on success.
> + */
> +
> +typedef int (*eventdev_crypto_adapter_stats_reset)
> +			(const struct rte_eventdev *dev,
> +			const struct rte_cryptodev *cdev);
> +
>   /** Event device operations function pointer table */
>   struct rte_eventdev_ops {
>   	eventdev_info_get_t dev_infos_get;	/**< Get device info. */
> @@ -640,6 +801,21 @@ struct rte_eventdev_ops {
>   	eventdev_eth_rx_adapter_stats_reset eth_rx_adapter_stats_reset;
>   	/**< Reset ethernet Rx stats */
>   
> +	eventdev_crypto_adapter_caps_get_t crypto_adapter_caps_get;
> +	/**< Get crypto adapter capabilities */
> +	eventdev_crypto_adapter_queue_pair_add_t crypto_adapter_queue_pair_add;
> +	/**< Add queue pair to crypto adapter */
> +	eventdev_crypto_adapter_queue_pair_del_t crypto_adapter_queue_pair_del;
> +	/**< Delete queue pair from crypto adapter */
> +	eventdev_crypto_adapter_start_t crypto_adapter_start;
> +	/**< Start crypto adapter */
> +	eventdev_crypto_adapter_stop_t crypto_adapter_stop;
> +	/**< Stop crypto adapter */
> +	eventdev_crypto_adapter_stats_get crypto_adapter_stats_get;
> +	/**< Get crypto stats */
> +	eventdev_crypto_adapter_stats_reset crypto_adapter_stats_reset;
> +	/**< Reset crypto stats */
> +
>   	eventdev_selftest dev_selftest;
>   	/**< Start eventdev Selftest */
>   
> 

Re: [dpdk-dev] [dpdk-dev, v1, 1/5] eventdev: add caps API and PMD callbacks for crypto adapter

[Gujjar, Abhinandan S]

> -----Original Message-----
> From: Akhil Goyal [mailto:akhil.goyal@nxp.com]
> Sent: Tuesday, April 10, 2018 4:07 PM
> To: Gujjar, Abhinandan S <abhinandan.gujjar@intel.com>;
> jerin.jacob@caviumnetworks.com; hemant.agrawal@nxp.com; dev@dpdk.org
> Cc: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>; Doherty, Declan
> <declan.doherty@intel.com>; Vangati, Narender
> <narender.vangati@intel.com>; Rao, Nikhil <nikhil.rao@intel.com>
> Subject: Re: [dpdk-dev, v1, 1/5] eventdev: add caps API and PMD callbacks for
> crypto adapter
> 
> It would be good if we have a cover letter and description in the commit
> message.
Sure..
> 
> The patchset does not apply on eventdev subtree. Could you please rebase.
All the patches were based on " dpdk-next-eventdev ".
> 
> I think there is a need to add struct rte_crypto_op in the rte_event word 1 union
> as you are adding crypto event. All crypto drivers would process crypto op and
> not mbuf.
The " event_ptr" of *rte_event* will point to *rte_crypto_op* from application side.
From adapter side, the same is extracted using "crypto_op = ev[i].event_ptr".
Please refer adapter implementation and test/test/.c files & review them too.

> 
> Also, I guess the patchset is dependent on another patchset. Please mention
> that also in the cover letter.
You mean cryptodev? If yes, sure..

> 
> On 4/4/2018 12:26 PM, Abhinandan Gujjar wrote:
> > Signed-off-by: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
> > ---
> >   lib/librte_eventdev/rte_eventdev.c     |  25 +++++
> >   lib/librte_eventdev/rte_eventdev.h     |  35 +++++++
> >   lib/librte_eventdev/rte_eventdev_pmd.h | 176
> +++++++++++++++++++++++++++++++++
> >   3 files changed, 236 insertions(+)
> >
> > diff --git a/lib/librte_eventdev/rte_eventdev.c
> > b/lib/librte_eventdev/rte_eventdev.c
> > index 2de8d9a..3d24e8f 100644
> > --- a/lib/librte_eventdev/rte_eventdev.c
> > +++ b/lib/librte_eventdev/rte_eventdev.c
> > @@ -29,6 +29,8 @@
> >   #include <rte_malloc.h>
> >   #include <rte_errno.h>
> >   #include <rte_ethdev.h>
> > +#include <rte_cryptodev.h>
> > +#include <rte_cryptodev_pmd.h>
> >
> >   #include "rte_eventdev.h"
> >   #include "rte_eventdev_pmd.h"
> > @@ -123,6 +125,29 @@
> >   				: 0;
> >   }
> >
> > +int __rte_experimental
> > +rte_event_crypto_adapter_caps_get(uint8_t dev_id, uint8_t cdev_id,
> > +				  uint32_t *caps)
> > +{
> > +	struct rte_eventdev *dev;
> > +	struct rte_cryptodev *cdev;
> > +
> > +	RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
> > +	if (!rte_cryptodev_pmd_is_valid_dev(cdev_id))
> > +		return -EINVAL;
> > +
> > +	dev = &rte_eventdevs[dev_id];
> > +	cdev = rte_cryptodev_pmd_get_dev(cdev_id);
> > +
> > +	if (caps == NULL)
> > +		return -EINVAL;
> It is expected that caps memory is initialized by the caller. This should be
> mentioned in the description of the API.
Ok
> > +	*caps = 0;
> > +
> > +	return dev->dev_ops->crypto_adapter_caps_get ?
> > +		(*dev->dev_ops->crypto_adapter_caps_get)
> > +		(dev, cdev, caps) : 0;
> 
> It should be -ENOTSUP instead of 0. I think same needs to be corrected for eth
> rx adapter.
Ok. I will update this in the crypto caps API.
> 
> > +}
> > +
> >   static inline int
> >   rte_event_dev_queue_config(struct rte_eventdev *dev, uint8_t nb_queues)
> >   {
> > diff --git a/lib/librte_eventdev/rte_eventdev.h
> > b/lib/librte_eventdev/rte_eventdev.h
> > index a20077c..49a71d1 100644
> > --- a/lib/librte_eventdev/rte_eventdev.h
> > +++ b/lib/librte_eventdev/rte_eventdev.h
> > @@ -35,6 +35,8 @@
> >   #ifndef _RTE_EVENTDEV_H_
> >   #define _RTE_EVENTDEV_H_
> >
> > +#include <rte_compat.h>
> > +
> >   /**
> >    * @file
> >    *
> > @@ -1142,6 +1144,39 @@ struct rte_event {
> >   rte_event_eth_rx_adapter_caps_get(uint8_t dev_id, uint8_t eth_port_id,
> >   				uint32_t *caps);
> >
> > +
> > +/* Crypto adapter capability bitmap flag */
> > +#define RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT	0x1
> > +/**< Flag indicates HW is capable of generating events.
> > + * Cryptodev can send packets to the event device using an internal event
> port.
> > + */
> > +
> > +/**
> > + * @warning
> > + * @b EXPERIMENTAL: this API may change without prior notice
> > + *
> > + * Retrieve the event device's crypto adapter capabilities for the
> > + * specified cryptodev device
> > + *
> > + * @param dev_id
> > + *   The identifier of the device.
> > + *
> > + * @param cdev_id
> > + *   The identifier of the cryptodev device.
> > + *
> > + * @param[out] caps
> > + *   A pointer to memory filled with event adapter capabilities.
> > + *
> > + * @return
> > + *   - 0: Success, driver provides event adapter capabilities for the
> > + *	cryptodev device.
> > + *   - <0: Error code returned by the driver function.
> > + *
> > + */
> > +int __rte_experimental
> > +rte_event_crypto_adapter_caps_get(uint8_t dev_id, uint8_t cdev_id,
> > +				  uint32_t *caps);
> > +
> >   struct rte_eventdev_driver;
> >   struct rte_eventdev_ops;
> >   struct rte_eventdev;
> > diff --git a/lib/librte_eventdev/rte_eventdev_pmd.h
> > b/lib/librte_eventdev/rte_eventdev_pmd.h
> > index 3a8ddd7..656d160 100644
> > --- a/lib/librte_eventdev/rte_eventdev_pmd.h
> > +++ b/lib/librte_eventdev/rte_eventdev_pmd.h
> > @@ -585,6 +585,167 @@ typedef int
> (*eventdev_eth_rx_adapter_stats_reset)
> >    */
> >   typedef int (*eventdev_selftest)(void);
> >
> > +
> > +struct rte_cryptodev;
> > +/**
> > + * This API may change without prior notice
> > + *
> > + * Retrieve the event device's crypto adapter capabilities for the
> > + * specified cryptodev
> > + *
> > + * @param dev
> > + *   Event device pointer
> > + *
> > + * @param cdev
> > + *   cryptodev pointer
> > + *
> > + * @param[out] caps
> > + *   A pointer to memory filled with event adapter capabilities.
> > + *
> > + * @return
> > + *   - 0: Success, driver provides event adapter capabilities for the
> > + *	cryptodev.
> > + *   - <0: Error code returned by the driver function.
> > + *
> > + */
> > +typedef int (*eventdev_crypto_adapter_caps_get_t)
> > +					(const struct rte_eventdev *dev,
> > +					const struct rte_cryptodev *cdev,
> > +					uint32_t *caps);
> > +
> > +/**
> > + * This API may change without prior notice
> > + *
> > + * Add crypto queue pair to event device. This callback is invoked if
> > + * the caps returned from rte_event_crypto_adapter_caps_get(,
> > +cdev_id)
> > + * has RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT set.
> > + *
> > + * @param dev
> > + *   Event device pointer
> > + *
> > + * @param cdev
> > + *   cryptodev pointer
> > + *
> > + * @param[out] queue_pair_id
> > + *   cryptodev queue pair indentifier.
> spell check.
Ok
> > + *
> > + * @return
> > + *   - 0: Success, cryptodev queue pair added successfully.
> > + *   - <0: Error code returned by the driver function.
> > + *
> > + */
> > +typedef int (*eventdev_crypto_adapter_queue_pair_add_t)
> > +					(const struct rte_eventdev *dev,
> > +					const struct rte_cryptodev *cdev,
> > +					int32_t queue_pair_id);
> > +
> > +
> > +/**
> > + * This API may change without prior notice
> > + *
> > + * Delete crypto queue pair to event device. This callback is invoked
> > +if
> > + * the caps returned from rte_event_crypto_adapter_caps_get(,
> > +cdev_id)
> > + * has RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT set.
> > + *
> > + * @param dev
> > + *   Event device pointer
> > + *
> > + * @param cdev
> > + *   cryptodev pointer
> > + *
> > + * @param[out] queue_pair_id
> > + *   cryptodev queue pair indentifier.
> spell check
Ok
> > + *
> > + * @return
> > + *   - 0: Success, cryptodev queue pair deleted successfully.
> > + *   - <0: Error code returned by the driver function.
> > + *
> > + */
> > +typedef int (*eventdev_crypto_adapter_queue_pair_del_t)
> > +					(const struct rte_eventdev *dev,
> > +					const struct rte_cryptodev *cdev,
> > +					int32_t queue_pair_id);
> > +
> > +/**
> > + * Start crypto adapter. This callback is invoked if
> > + * the caps returned from rte_event_crypto_adapter_caps_get(..,
> > +cdev_id)
> > + * has RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT set and queue
> pairs
> > + * from cdev_id have been added to the event device.
> > + *
> > + * @param dev
> > + *   Event device pointer
> > + *
> > + * @param cdev
> > + *   Crypto device pointer
> > + *
> > + * @return
> > + *   - 0: Success, crypto adapter started successfully.
> > + *   - <0: Error code returned by the driver function.
> > + */
> > +typedef int (*eventdev_crypto_adapter_start_t)
> > +					(const struct rte_eventdev *dev,
> > +					 const struct rte_cryptodev *cdev);
> > +
> > +/**
> > + * Stop crypto adapter. This callback is invoked if
> > + * the caps returned from rte_event_crypto_adapter_caps_get(..,
> > +cdev_id)
> > + * has RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT set and queue
> pairs
> > + * from cdev_id have been added to the event device.
> > + *
> > + * @param dev
> > + *   Event device pointer
> > + *
> > + * @param cdev
> > + *   Crypto device pointer
> > + *
> > + * @return
> > + *   - 0: Success, crypto adapter stopped successfully.
> > + *   - <0: Error code returned by the driver function.
> > + */
> > +typedef int (*eventdev_crypto_adapter_stop_t)
> > +					(const struct rte_eventdev *dev,
> > +					 const struct rte_cryptodev *cdev);
> > +
> > +struct rte_event_crypto_adapter_stats;
> > +
> > +/**
> > + * Retrieve crypto adapter statistics.
> > + *
> > + * @param dev
> > + *   Event device pointer
> > + *
> > + * @param cdev
> > + *   Crypto device pointer
> > + *
> > + * @param[out] stats
> > + *   Pointer to stats structure
> > + *
> > + * @return
> > + *   Return 0 on success.
> > + */
> > +
> > +typedef int (*eventdev_crypto_adapter_stats_get)
> > +			(const struct rte_eventdev *dev,
> > +			const struct rte_cryptodev *cdev,
> > +			struct rte_event_crypto_adapter_stats *stats);
> > +
> > +/**
> > + * Reset crypto adapter statistics.
> > + *
> > + * @param dev
> > + *   Event device pointer
> > + *
> > + * @param cdev
> > + *   Crypto device pointer
> > + *
> > + * @return
> > + *   Return 0 on success.
> > + */
> > +
> > +typedef int (*eventdev_crypto_adapter_stats_reset)
> > +			(const struct rte_eventdev *dev,
> > +			const struct rte_cryptodev *cdev);
> > +
> >   /** Event device operations function pointer table */
> >   struct rte_eventdev_ops {
> >   	eventdev_info_get_t dev_infos_get;	/**< Get device info. */
> > @@ -640,6 +801,21 @@ struct rte_eventdev_ops {
> >   	eventdev_eth_rx_adapter_stats_reset eth_rx_adapter_stats_reset;
> >   	/**< Reset ethernet Rx stats */
> >
> > +	eventdev_crypto_adapter_caps_get_t crypto_adapter_caps_get;
> > +	/**< Get crypto adapter capabilities */
> > +	eventdev_crypto_adapter_queue_pair_add_t
> crypto_adapter_queue_pair_add;
> > +	/**< Add queue pair to crypto adapter */
> > +	eventdev_crypto_adapter_queue_pair_del_t
> crypto_adapter_queue_pair_del;
> > +	/**< Delete queue pair from crypto adapter */
> > +	eventdev_crypto_adapter_start_t crypto_adapter_start;
> > +	/**< Start crypto adapter */
> > +	eventdev_crypto_adapter_stop_t crypto_adapter_stop;
> > +	/**< Stop crypto adapter */
> > +	eventdev_crypto_adapter_stats_get crypto_adapter_stats_get;
> > +	/**< Get crypto stats */
> > +	eventdev_crypto_adapter_stats_reset crypto_adapter_stats_reset;
> > +	/**< Reset crypto stats */
> > +
> >   	eventdev_selftest dev_selftest;
> >   	/**< Start eventdev Selftest */
> >
> >