[v4] crypto/qat: add handling of multi process

Message ID 20200706173535.14812-1-arkadiuszx.kusztal@intel.com (mailing list archive)
State Superseded, archived
Delegated to: akhil goyal
Headers
Series [v4] crypto/qat: add handling of multi process |

Checks

Context Check Description
ci/checkpatch warning coding style issues
ci/Performance-Testing fail build patch failure
ci/Intel-compilation success Compilation OK

Commit Message

Arkadiusz Kusztal July 6, 2020, 5:35 p.m. UTC
  This patch improves handling of multi process applications
using Intel QuickAssist Technology PMD.

Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
---
v4:
- fixed checkpatch issues

 doc/guides/rel_notes/release_20_08.rst |   4 ++
 drivers/common/qat/qat_device.c        | 111 +++++++++++++++++++++++----------
 drivers/common/qat/qat_device.h        |  69 +++++++++++---------
 drivers/common/qat/qat_qp.c            |  26 ++++++--
 drivers/compress/qat/qat_comp_pmd.c    |  49 ++++++++++++---
 drivers/compress/qat/qat_comp_pmd.h    |   2 +
 drivers/crypto/qat/qat_asym.c          |   4 +-
 drivers/crypto/qat/qat_asym_pmd.c      |  72 +++++++++++++++++----
 drivers/crypto/qat/qat_asym_pmd.h      |   4 +-
 drivers/crypto/qat/qat_sym.c           |   2 +-
 drivers/crypto/qat/qat_sym.h           |   2 +-
 drivers/crypto/qat/qat_sym_pmd.c       | 105 +++++++++++++++++++++++++------
 drivers/crypto/qat/qat_sym_pmd.h       |   4 +-
 13 files changed, 337 insertions(+), 117 deletions(-)
  

Comments

Fiona Trahe July 6, 2020, 5:44 p.m. UTC | #1
> -----Original Message-----
> From: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>
> Sent: Monday, July 6, 2020 6:36 PM
> To: dev@dpdk.org
> Cc: akhil.goyal@nxp.com; Trahe, Fiona <fiona.trahe@intel.com>; Kusztal, ArkadiuszX
> <arkadiuszx.kusztal@intel.com>
> Subject: [PATCH v4] crypto/qat: add handling of multi process
> 
> This patch improves handling of multi process applications
> using Intel QuickAssist Technology PMD.
> 
> Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
  
Akhil Goyal July 6, 2020, 6:16 p.m. UTC | #2
Hi Arek,

> 
> This patch improves handling of multi process applications
> using Intel QuickAssist Technology PMD.
> 
Could you please elaborate more on the description about what all
Improvements has been done.
It would be better if the patch can be broken in logical parts.

> Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
> ---
> v4:
> - fixed checkpatch issues
> 
>  doc/guides/rel_notes/release_20_08.rst |   4 ++
>  drivers/common/qat/qat_device.c        | 111 +++++++++++++++++++++++--------
> --
>  drivers/common/qat/qat_device.h        |  69 +++++++++++---------
>  drivers/common/qat/qat_qp.c            |  26 ++++++--
>  drivers/compress/qat/qat_comp_pmd.c    |  49 ++++++++++++---
>  drivers/compress/qat/qat_comp_pmd.h    |   2 +
>  drivers/crypto/qat/qat_asym.c          |   4 +-
>  drivers/crypto/qat/qat_asym_pmd.c      |  72 +++++++++++++++++----
>  drivers/crypto/qat/qat_asym_pmd.h      |   4 +-
>  drivers/crypto/qat/qat_sym.c           |   2 +-
>  drivers/crypto/qat/qat_sym.h           |   2 +-
>  drivers/crypto/qat/qat_sym_pmd.c       | 105 +++++++++++++++++++++++++-----
> -
>  drivers/crypto/qat/qat_sym_pmd.h       |   4 +-
>  13 files changed, 337 insertions(+), 117 deletions(-)
> 
> diff --git a/doc/guides/rel_notes/release_20_08.rst
> b/doc/guides/rel_notes/release_20_08.rst
> index 159da34..ec73ece 100644
> --- a/doc/guides/rel_notes/release_20_08.rst
> +++ b/doc/guides/rel_notes/release_20_08.rst
> @@ -134,6 +134,10 @@ New Features
>    See the :doc:`../sample_app_ug/l2_forward_real_virtual` for more
>    details of this parameter usage.
> 
> +* **Updated the Intel QuickAssist Technology crypto and compression
> PMDs.**
> +
> +  Implemented improvements in handling multi process applications
> +  using QAT symmetric/asymmetric crypto and compression services.

Add extra line here.
Also follow the sequencing of release notes for crypto PMDs.
It is mentioned above in the release note.

Regards,
Akhil
  

Patch

diff --git a/doc/guides/rel_notes/release_20_08.rst b/doc/guides/rel_notes/release_20_08.rst
index 159da34..ec73ece 100644
--- a/doc/guides/rel_notes/release_20_08.rst
+++ b/doc/guides/rel_notes/release_20_08.rst
@@ -134,6 +134,10 @@  New Features
   See the :doc:`../sample_app_ug/l2_forward_real_virtual` for more
   details of this parameter usage.
 
+* **Updated the Intel QuickAssist Technology crypto and compression PMDs.**
+
+  Implemented improvements in handling multi process applications
+  using QAT symmetric/asymmetric crypto and compression services.
 
 Removed Items
 -------------
diff --git a/drivers/common/qat/qat_device.c b/drivers/common/qat/qat_device.c
index 2b41d9a..a6ab29f 100644
--- a/drivers/common/qat/qat_device.c
+++ b/drivers/common/qat/qat_device.c
@@ -32,8 +32,8 @@  struct qat_gen_hw_data qat_gen_config[] =  {
 	},
 };
 
-
-static struct qat_pci_device qat_pci_devices[RTE_PMD_QAT_MAX_PCI_DEVICES];
+/* per-process array of device data */
+struct qat_device_info qat_pci_devs[RTE_PMD_QAT_MAX_PCI_DEVICES];
 static int qat_nb_pci_devices;
 
 /*
@@ -60,26 +60,20 @@  static const struct rte_pci_id pci_id_qat_map[] = {
 };
 
 static struct qat_pci_device *
-qat_pci_get_dev(uint8_t dev_id)
-{
-	return &qat_pci_devices[dev_id];
-}
-
-static struct qat_pci_device *
 qat_pci_get_named_dev(const char *name)
 {
-	struct qat_pci_device *dev;
 	unsigned int i;
 
 	if (name == NULL)
 		return NULL;
 
 	for (i = 0; i < RTE_PMD_QAT_MAX_PCI_DEVICES; i++) {
-		dev = &qat_pci_devices[i];
-
-		if ((dev->attached == QAT_ATTACHED) &&
-				(strcmp(dev->name, name) == 0))
-			return dev;
+		if (qat_pci_devs[i].mz &&
+				(strcmp(((struct qat_pci_device *)
+				qat_pci_devs[i].mz->addr)->name, name)
+				== 0))
+			return (struct qat_pci_device *)
+				qat_pci_devs[i].mz->addr;
 	}
 
 	return NULL;
@@ -88,13 +82,14 @@  qat_pci_get_named_dev(const char *name)
 static uint8_t
 qat_pci_find_free_device_index(void)
 {
-	uint8_t dev_id;
+		uint8_t dev_id;
 
-	for (dev_id = 0; dev_id < RTE_PMD_QAT_MAX_PCI_DEVICES; dev_id++) {
-		if (qat_pci_devices[dev_id].attached == QAT_DETACHED)
-			break;
-	}
-	return dev_id;
+		for (dev_id = 0; dev_id < RTE_PMD_QAT_MAX_PCI_DEVICES;
+				dev_id++) {
+			if (qat_pci_devs[dev_id].mz == NULL)
+				break;
+		}
+		return dev_id;
 }
 
 struct qat_pci_device *
@@ -169,12 +164,31 @@  qat_pci_device_allocate(struct rte_pci_device *pci_dev,
 		struct qat_dev_cmd_param *qat_dev_cmd_param)
 {
 	struct qat_pci_device *qat_dev;
-	uint8_t qat_dev_id;
+	uint8_t qat_dev_id = 0;
 	char name[QAT_DEV_NAME_MAX_LEN];
 	struct rte_devargs *devargs = pci_dev->device.devargs;
 
 	rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
 	snprintf(name+strlen(name), QAT_DEV_NAME_MAX_LEN-strlen(name), "_qat");
+
+	if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+		const struct rte_memzone *mz = rte_memzone_lookup(name);
+
+		if (mz == NULL) {
+			QAT_LOG(ERR,
+				"Secondary can't find %s mz, did primary create device?",
+				name);
+			return NULL;
+		}
+		qat_dev = mz->addr;
+		qat_pci_devs[qat_dev->qat_dev_id].mz = mz;
+		qat_pci_devs[qat_dev->qat_dev_id].pci_dev = pci_dev;
+		qat_nb_pci_devices++;
+		QAT_LOG(DEBUG, "QAT device %d found, name %s, total QATs %d",
+			qat_dev->qat_dev_id, qat_dev->name, qat_nb_pci_devices);
+		return qat_dev;
+	}
+
 	if (qat_pci_get_named_dev(name) != NULL) {
 		QAT_LOG(ERR, "QAT device with name %s already allocated!",
 				name);
@@ -187,12 +201,22 @@  qat_pci_device_allocate(struct rte_pci_device *pci_dev,
 		return NULL;
 	}
 
-	qat_dev = qat_pci_get_dev(qat_dev_id);
+	qat_pci_devs[qat_dev_id].mz = rte_memzone_reserve(name,
+		sizeof(struct qat_pci_device),
+		rte_socket_id(), 0);
+
+	if (qat_pci_devs[qat_dev_id].mz == NULL) {
+		QAT_LOG(ERR, "Error when allocating memzone for QAT_%d",
+			qat_dev_id);
+		return NULL;
+	}
+
+	qat_dev = qat_pci_devs[qat_dev_id].mz->addr;
 	memset(qat_dev, 0, sizeof(*qat_dev));
 	strlcpy(qat_dev->name, name, QAT_DEV_NAME_MAX_LEN);
 	qat_dev->qat_dev_id = qat_dev_id;
-	qat_dev->pci_dev = pci_dev;
-	switch (qat_dev->pci_dev->id.device_id) {
+	qat_pci_devs[qat_dev_id].pci_dev = pci_dev;
+	switch (pci_dev->id.device_id) {
 	case 0x0443:
 		qat_dev->qat_dev_gen = QAT_GEN1;
 		break;
@@ -206,6 +230,7 @@  qat_pci_device_allocate(struct rte_pci_device *pci_dev,
 		break;
 	default:
 		QAT_LOG(ERR, "Invalid dev_id, can't determine generation");
+		rte_memzone_free(qat_pci_devs[qat_dev->qat_dev_id].mz);
 		return NULL;
 	}
 
@@ -213,22 +238,20 @@  qat_pci_device_allocate(struct rte_pci_device *pci_dev,
 		qat_dev_parse_cmd(devargs->drv_str, qat_dev_cmd_param);
 
 	rte_spinlock_init(&qat_dev->arb_csr_lock);
-
-	qat_dev->attached = QAT_ATTACHED;
-
 	qat_nb_pci_devices++;
 
-	QAT_LOG(DEBUG, "QAT device %d allocated, name %s, total QATs %d",
+	QAT_LOG(DEBUG, "QAT device %d found, name %s, total QATs %d",
 			qat_dev->qat_dev_id, qat_dev->name, qat_nb_pci_devices);
 
 	return qat_dev;
 }
 
-int
+static int
 qat_pci_device_release(struct rte_pci_device *pci_dev)
 {
 	struct qat_pci_device *qat_dev;
 	char name[QAT_DEV_NAME_MAX_LEN];
+	int busy = 0;
 
 	if (pci_dev == NULL)
 		return -EINVAL;
@@ -238,15 +261,35 @@  qat_pci_device_release(struct rte_pci_device *pci_dev)
 	qat_dev = qat_pci_get_named_dev(name);
 	if (qat_dev != NULL) {
 
+		struct qat_device_info *inst =
+				&qat_pci_devs[qat_dev->qat_dev_id];
 		/* Check that there are no service devs still on pci device */
-		if (qat_dev->sym_dev != NULL)
-			return -EBUSY;
 
-		qat_dev->attached = QAT_DETACHED;
+		if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+			if (qat_dev->sym_dev != NULL) {
+				QAT_LOG(DEBUG, "QAT sym device %s is busy",
+					name);
+				busy = 1;
+			}
+			if (qat_dev->asym_dev != NULL) {
+				QAT_LOG(DEBUG, "QAT asym device %s is busy",
+					name);
+				busy = 1;
+			}
+			if (qat_dev->comp_dev != NULL) {
+				QAT_LOG(DEBUG, "QAT comp device %s is busy",
+					name);
+				busy = 1;
+			}
+			if (busy)
+				return -EBUSY;
+			rte_memzone_free(inst->mz);
+		}
+		memset(inst, 0, sizeof(struct qat_device_info));
 		qat_nb_pci_devices--;
+		QAT_LOG(DEBUG, "QAT device %s released, total QATs %d",
+					name, qat_nb_pci_devices);
 	}
-	QAT_LOG(DEBUG, "QAT device %s released, total QATs %d",
-				name, qat_nb_pci_devices);
 	return 0;
 }
 
diff --git a/drivers/common/qat/qat_device.h b/drivers/common/qat/qat_device.h
index 09a4c55..271968c 100644
--- a/drivers/common/qat/qat_device.h
+++ b/drivers/common/qat/qat_device.h
@@ -32,6 +32,37 @@  enum qat_comp_num_im_buffers {
 	QAT_NUM_INTERM_BUFS_GEN3 = 20
 };
 
+struct qat_device_info {
+	const struct rte_memzone *mz;
+	/**< mz to store the qat_pci_device so it can be
+	 * shared across processes
+	 */
+	struct rte_pci_device *pci_dev;
+	struct rte_device sym_rte_dev;
+	/**< This represents the crypto sym subset of this pci device.
+	 * Register with this rather than with the one in
+	 * pci_dev so that its driver can have a crypto-specific name
+	 */
+
+	struct rte_device asym_rte_dev;
+	/**< This represents the crypto asym subset of this pci device.
+	 * Register with this rather than with the one in
+	 * pci_dev so that its driver can have a crypto-specific name
+	 */
+
+	struct rte_device comp_rte_dev;
+	/**< This represents the compression subset of this pci device.
+	 * Register with this rather than with the one in
+	 * pci_dev so that its driver can have a compression-specific name
+	 */
+};
+
+extern struct qat_device_info qat_pci_devs[];
+
+struct qat_sym_dev_private;
+struct qat_asym_dev_private;
+struct qat_comp_dev_private;
+
 /*
  * This struct holds all the data about a QAT pci device
  * including data about all services it supports.
@@ -39,27 +70,20 @@  enum qat_comp_num_im_buffers {
  *  - hw_data
  *  - config data
  *  - runtime data
+ * Note: as this data can be shared in a multi-process scenario,
+ * any pointers in it must also point to shared memory.
  */
-struct qat_sym_dev_private;
-struct qat_asym_dev_private;
-struct qat_comp_dev_private;
-
 struct qat_pci_device {
 
 	/* Data used by all services */
 	char name[QAT_DEV_NAME_MAX_LEN];
 	/**< Name of qat pci device */
 	uint8_t qat_dev_id;
-	/**< Device instance for this qat pci device */
-	struct rte_pci_device *pci_dev;
-	/**< PCI information. */
+	/**< Id of device instance for this qat pci device */
 	enum qat_device_gen qat_dev_gen;
 	/**< QAT device generation */
 	rte_spinlock_t arb_csr_lock;
 	/**< lock to protect accesses to the arbiter CSR */
-	__extension__
-	uint8_t attached : 1;
-	/**< Flag indicating the device is attached */
 
 	struct qat_qp *qps_in_use[QAT_MAX_SERVICES][ADF_MAX_QPS_ON_ANY_SERVICE];
 	/**< links to qps set up for each service, index same as on API */
@@ -67,32 +91,18 @@  struct qat_pci_device {
 	/* Data relating to symmetric crypto service */
 	struct qat_sym_dev_private *sym_dev;
 	/**< link back to cryptodev private data */
-	struct rte_device sym_rte_dev;
-	/**< This represents the crypto sym subset of this pci device.
-	 * Register with this rather than with the one in
-	 * pci_dev so that its driver can have a crypto-specific name
-	 */
+	int qat_sym_driver_id;
+	/**< Symmetric driver id used by this device */
 
 	/* Data relating to asymmetric crypto service */
 	struct qat_asym_dev_private *asym_dev;
 	/**< link back to cryptodev private data */
-	struct rte_device asym_rte_dev;
-	/**< This represents the crypto asym subset of this pci device.
-	 * Register with this rather than with the one in
-	 * pci_dev so that its driver can have a crypto-specific name
-	 */
+	int qat_asym_driver_id;
+	/**< Symmetric driver id used by this device */
 
 	/* Data relating to compression service */
 	struct qat_comp_dev_private *comp_dev;
 	/**< link back to compressdev private data */
-	struct rte_device comp_rte_dev;
-	/**< This represents the compression subset of this pci device.
-	 * Register with this rather than with the one in
-	 * pci_dev so that its driver can have a compression-specific name
-	 */
-
-	/* Data relating to asymmetric crypto service */
-
 };
 
 struct qat_gen_hw_data {
@@ -107,9 +117,6 @@  struct qat_pci_device *
 qat_pci_device_allocate(struct rte_pci_device *pci_dev,
 		struct qat_dev_cmd_param *qat_dev_cmd_param);
 
-int
-qat_pci_device_release(struct rte_pci_device *pci_dev);
-
 struct qat_pci_device *
 qat_get_qat_dev_from_pci_dev(struct rte_pci_device *pci_dev);
 
diff --git a/drivers/common/qat/qat_qp.c b/drivers/common/qat/qat_qp.c
index 8e6dd04..aacd4ab 100644
--- a/drivers/common/qat/qat_qp.c
+++ b/drivers/common/qat/qat_qp.c
@@ -193,7 +193,8 @@  int qat_qp_setup(struct qat_pci_device *qat_dev,
 
 {
 	struct qat_qp *qp;
-	struct rte_pci_device *pci_dev = qat_dev->pci_dev;
+	struct rte_pci_device *pci_dev =
+			qat_pci_devs[qat_dev->qat_dev_id].pci_dev;
 	char op_cookie_pool_name[RTE_RING_NAMESIZE];
 	uint32_t i;
 
@@ -274,7 +275,7 @@  int qat_qp_setup(struct qat_pci_device *qat_dev,
 				qp->nb_descriptors,
 				qat_qp_conf->cookie_size, 64, 0,
 				NULL, NULL, NULL, NULL,
-				qat_dev->pci_dev->device.numa_node,
+				pci_dev->device.numa_node,
 				0);
 	if (!qp->op_cookie_pool) {
 		QAT_LOG(ERR, "QAT PMD Cannot create"
@@ -379,7 +380,8 @@  qat_queue_create(struct qat_pci_device *qat_dev, struct qat_queue *queue,
 	uint64_t queue_base;
 	void *io_addr;
 	const struct rte_memzone *qp_mz;
-	struct rte_pci_device *pci_dev = qat_dev->pci_dev;
+	struct rte_pci_device *pci_dev =
+			qat_pci_devs[qat_dev->qat_dev_id].pci_dev;
 	int ret = 0;
 	uint16_t desc_size = (dir == ADF_RING_DIR_TX ?
 			qp_conf->hw->tx_msg_size : qp_conf->hw->rx_msg_size);
@@ -403,7 +405,7 @@  qat_queue_create(struct qat_pci_device *qat_dev, struct qat_queue *queue,
 		qp_conf->service_str, "qp_mem",
 		queue->hw_bundle_number, queue->hw_queue_number);
 	qp_mz = queue_dma_zone_reserve(queue->memz_name, queue_size_bytes,
-			qat_dev->pci_dev->device.numa_node);
+			pci_dev->device.numa_node);
 	if (qp_mz == NULL) {
 		QAT_LOG(ERR, "Failed to allocate ring memzone");
 		return -ENOMEM;
@@ -627,9 +629,23 @@  qat_enqueue_op_burst(void *qp, void **ops, uint16_t nb_ops)
 
 
 	while (nb_ops_sent != nb_ops_possible) {
-		ret = tmp_qp->build_request(*ops, base_addr + tail,
+		if (tmp_qp->service_type == QAT_SERVICE_SYMMETRIC) {
+#ifdef BUILD_QAT_SYM
+			ret = qat_sym_build_request(*ops, base_addr + tail,
 				tmp_qp->op_cookies[tail >> queue->trailz],
 				tmp_qp->qat_dev_gen);
+#endif
+		} else if (tmp_qp->service_type == QAT_SERVICE_COMPRESSION) {
+			ret = qat_comp_build_request(*ops, base_addr + tail,
+				tmp_qp->op_cookies[tail >> queue->trailz],
+				tmp_qp->qat_dev_gen);
+		} else if (tmp_qp->service_type == QAT_SERVICE_ASYMMETRIC) {
+#ifdef BUILD_QAT_ASYM
+			ret = qat_asym_build_request(*ops, base_addr + tail,
+				tmp_qp->op_cookies[tail >> queue->trailz],
+				tmp_qp->qat_dev_gen);
+#endif
+		}
 		if (ret != 0) {
 			tmp_qp->stats.enqueue_err_count++;
 			/* This message cannot be enqueued */
diff --git a/drivers/compress/qat/qat_comp_pmd.c b/drivers/compress/qat/qat_comp_pmd.c
index fe62de5..4a5baf3 100644
--- a/drivers/compress/qat/qat_comp_pmd.c
+++ b/drivers/compress/qat/qat_comp_pmd.c
@@ -655,6 +655,8 @@  qat_comp_dev_create(struct qat_pci_device *qat_pci_dev,
 		struct qat_dev_cmd_param *qat_dev_cmd_param)
 {
 	int i = 0;
+	struct qat_device_info *qat_dev_instance =
+			&qat_pci_devs[qat_pci_dev->qat_dev_id];
 	if (qat_pci_dev->qat_dev_gen == QAT_GEN3) {
 		QAT_LOG(ERR, "Compression PMD not supported on QAT P5xxx");
 		return 0;
@@ -662,24 +664,27 @@  qat_comp_dev_create(struct qat_pci_device *qat_pci_dev,
 
 	struct rte_compressdev_pmd_init_params init_params = {
 		.name = "",
-		.socket_id = qat_pci_dev->pci_dev->device.numa_node,
+		.socket_id = qat_dev_instance->pci_dev->device.numa_node,
 	};
 	char name[RTE_COMPRESSDEV_NAME_MAX_LEN];
+	char capa_memz_name[RTE_COMPRESSDEV_NAME_MAX_LEN];
 	struct rte_compressdev *compressdev;
 	struct qat_comp_dev_private *comp_dev;
+	const struct rte_compressdev_capabilities *capabilities;
+	uint64_t capa_size;
 
 	snprintf(name, RTE_COMPRESSDEV_NAME_MAX_LEN, "%s_%s",
 			qat_pci_dev->name, "comp");
 	QAT_LOG(DEBUG, "Creating QAT COMP device %s", name);
 
 	/* Populate subset device to use in compressdev device creation */
-	qat_pci_dev->comp_rte_dev.driver = &compdev_qat_driver;
-	qat_pci_dev->comp_rte_dev.numa_node =
-					qat_pci_dev->pci_dev->device.numa_node;
-	qat_pci_dev->comp_rte_dev.devargs = NULL;
+	qat_dev_instance->comp_rte_dev.driver = &compdev_qat_driver;
+	qat_dev_instance->comp_rte_dev.numa_node =
+			qat_dev_instance->pci_dev->device.numa_node;
+	qat_dev_instance->comp_rte_dev.devargs = NULL;
 
 	compressdev = rte_compressdev_pmd_create(name,
-			&(qat_pci_dev->comp_rte_dev),
+			&(qat_dev_instance->comp_rte_dev),
 			sizeof(struct qat_comp_dev_private),
 			&init_params);
 
@@ -694,25 +699,48 @@  qat_comp_dev_create(struct qat_pci_device *qat_pci_dev,
 
 	compressdev->feature_flags = RTE_COMPDEV_FF_HW_ACCELERATED;
 
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return 0;
+
+	snprintf(capa_memz_name, RTE_COMPRESSDEV_NAME_MAX_LEN,
+			"QAT_COMP_CAPA_GEN_%d",
+			qat_pci_dev->qat_dev_gen);
 	comp_dev = compressdev->data->dev_private;
 	comp_dev->qat_dev = qat_pci_dev;
 	comp_dev->compressdev = compressdev;
-	qat_pci_dev->comp_dev = comp_dev;
 
 	switch (qat_pci_dev->qat_dev_gen) {
 	case QAT_GEN1:
 	case QAT_GEN2:
 	case QAT_GEN3:
-		comp_dev->qat_dev_capabilities = qat_comp_gen_capabilities;
+		capabilities = qat_comp_gen_capabilities;
+		capa_size = sizeof(qat_comp_gen_capabilities);
 		break;
 	default:
-		comp_dev->qat_dev_capabilities = qat_comp_gen_capabilities;
+		capabilities = qat_comp_gen_capabilities;
+		capa_size = sizeof(qat_comp_gen_capabilities);
 		QAT_LOG(DEBUG,
 			"QAT gen %d capabilities unknown, default to GEN1",
 					qat_pci_dev->qat_dev_gen);
 		break;
 	}
 
+	comp_dev->capa_mz = rte_memzone_reserve(capa_memz_name,
+		capa_size,
+		rte_socket_id(), 0);
+	if (comp_dev->capa_mz == NULL) {
+		QAT_LOG(DEBUG,
+			"Error allocating memzone for capabilities, destroying PMD for %s",
+			name);
+		memset(&qat_dev_instance->comp_rte_dev, 0,
+			sizeof(qat_dev_instance->comp_rte_dev));
+		rte_compressdev_pmd_destroy(compressdev);
+		return -EFAULT;
+	}
+
+	memcpy(comp_dev->capa_mz->addr, capabilities, capa_size);
+	comp_dev->qat_dev_capabilities = comp_dev->capa_mz->addr;
+
 	while (1) {
 		if (qat_dev_cmd_param[i].name == NULL)
 			break;
@@ -721,6 +749,7 @@  qat_comp_dev_create(struct qat_pci_device *qat_pci_dev,
 					qat_dev_cmd_param[i].val;
 		i++;
 	}
+	qat_pci_dev->comp_dev = comp_dev;
 
 	QAT_LOG(DEBUG,
 		    "Created QAT COMP device %s as compressdev instance %d",
@@ -740,6 +769,8 @@  qat_comp_dev_destroy(struct qat_pci_device *qat_pci_dev)
 	if (comp_dev == NULL)
 		return 0;
 
+	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+		rte_memzone_free(qat_pci_dev->comp_dev->capa_mz);
 	/* clean up any resources used by the device */
 	qat_comp_dev_close(comp_dev->compressdev);
 
diff --git a/drivers/compress/qat/qat_comp_pmd.h b/drivers/compress/qat/qat_comp_pmd.h
index 5c7fa9f..ed27120 100644
--- a/drivers/compress/qat/qat_comp_pmd.h
+++ b/drivers/compress/qat/qat_comp_pmd.h
@@ -32,6 +32,8 @@  struct qat_comp_dev_private {
 	/**< The device's pool for qat_comp_xforms */
 	struct rte_mempool *streampool;
 	/**< The device's pool for qat_comp_streams */
+	const struct rte_memzone *capa_mz;
+	/* Shared memzone for storing capabilities */
 	uint16_t min_enq_burst_threshold;
 };
 
diff --git a/drivers/crypto/qat/qat_asym.c b/drivers/crypto/qat/qat_asym.c
index ae0dd79..8597381 100644
--- a/drivers/crypto/qat/qat_asym.c
+++ b/drivers/crypto/qat/qat_asym.c
@@ -475,7 +475,7 @@  qat_asym_build_request(void *in_op,
 	if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 		ctx = (struct qat_asym_session *)
 			get_asym_session_private_data(
-			op->asym->session, cryptodev_qat_asym_driver_id);
+			op->asym->session, qat_asym_driver_id);
 		if (unlikely(ctx == NULL)) {
 			QAT_LOG(ERR, "Session has not been created for this device");
 			goto error;
@@ -693,7 +693,7 @@  qat_asym_process_response(void **op, uint8_t *resp,
 
 	if (rx_op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 		ctx = (struct qat_asym_session *)get_asym_session_private_data(
-			rx_op->asym->session, cryptodev_qat_asym_driver_id);
+			rx_op->asym->session, qat_asym_driver_id);
 		qat_asym_collect_response(rx_op, cookie, ctx->xform);
 	} else if (rx_op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
 		qat_asym_collect_response(rx_op, cookie, rx_op->asym->xform);
diff --git a/drivers/crypto/qat/qat_asym_pmd.c b/drivers/crypto/qat/qat_asym_pmd.c
index af3cc25..9b1676b 100644
--- a/drivers/crypto/qat/qat_asym_pmd.c
+++ b/drivers/crypto/qat/qat_asym_pmd.c
@@ -11,7 +11,7 @@ 
 #include "qat_sym_capabilities.h"
 #include "qat_asym_capabilities.h"
 
-uint8_t cryptodev_qat_asym_driver_id;
+uint8_t qat_asym_driver_id;
 
 static const struct rte_cryptodev_capabilities qat_gen1_asym_capabilities[] = {
 	QAT_BASE_GEN1_ASYM_CAPABILITIES,
@@ -63,7 +63,7 @@  static void qat_asym_dev_info_get(struct rte_cryptodev *dev,
 							QAT_SERVICE_ASYMMETRIC);
 		info->feature_flags = dev->feature_flags;
 		info->capabilities = internals->qat_dev_capabilities;
-		info->driver_id = cryptodev_qat_asym_driver_id;
+		info->driver_id = qat_asym_driver_id;
 		/* No limit of number of sessions */
 		info->sym.max_nb_sessions = 0;
 	}
@@ -239,33 +239,50 @@  qat_asym_dev_create(struct qat_pci_device *qat_pci_dev,
 		struct qat_dev_cmd_param *qat_dev_cmd_param)
 {
 	int i = 0;
+	struct qat_device_info *qat_dev_instance =
+			&qat_pci_devs[qat_pci_dev->qat_dev_id];
 	struct rte_cryptodev_pmd_init_params init_params = {
 			.name = "",
-			.socket_id = qat_pci_dev->pci_dev->device.numa_node,
+			.socket_id =
+				qat_dev_instance->pci_dev->device.numa_node,
 			.private_data_size = sizeof(struct qat_asym_dev_private)
 	};
 	char name[RTE_CRYPTODEV_NAME_MAX_LEN];
+	char capa_memz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 	struct rte_cryptodev *cryptodev;
 	struct qat_asym_dev_private *internals;
 
+	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+		qat_pci_dev->qat_asym_driver_id =
+				qat_asym_driver_id;
+	} else if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+		if (qat_pci_dev->qat_asym_driver_id !=
+				qat_asym_driver_id) {
+			QAT_LOG(ERR,
+					"Device %s have different driver id than corresponding device in primary process",
+					name);
+			return -(EFAULT);
+		}
+	}
+
 	snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN, "%s_%s",
 			qat_pci_dev->name, "asym");
 	QAT_LOG(DEBUG, "Creating QAT ASYM device %s\n", name);
 
 	/* Populate subset device to use in cryptodev device creation */
-	qat_pci_dev->asym_rte_dev.driver = &cryptodev_qat_asym_driver;
-	qat_pci_dev->asym_rte_dev.numa_node =
-				qat_pci_dev->pci_dev->device.numa_node;
-	qat_pci_dev->asym_rte_dev.devargs = NULL;
+	qat_dev_instance->asym_rte_dev.driver = &cryptodev_qat_asym_driver;
+	qat_dev_instance->asym_rte_dev.numa_node =
+			qat_dev_instance->pci_dev->device.numa_node;
+	qat_dev_instance->asym_rte_dev.devargs = NULL;
 
 	cryptodev = rte_cryptodev_pmd_create(name,
-			&(qat_pci_dev->asym_rte_dev), &init_params);
+			&(qat_dev_instance->asym_rte_dev), &init_params);
 
 	if (cryptodev == NULL)
 		return -ENODEV;
 
-	qat_pci_dev->asym_rte_dev.name = cryptodev->data->name;
-	cryptodev->driver_id = cryptodev_qat_asym_driver_id;
+	qat_dev_instance->asym_rte_dev.name = cryptodev->data->name;
+	cryptodev->driver_id = qat_asym_driver_id;
 	cryptodev->dev_ops = &crypto_qat_ops;
 
 	cryptodev->enqueue_burst = qat_asym_pmd_enqueue_op_burst;
@@ -276,13 +293,39 @@  qat_asym_dev_create(struct qat_pci_device *qat_pci_dev,
 			RTE_CRYPTODEV_FF_ASYM_SESSIONLESS |
 			RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_EXP |
 			RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT;
+
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return 0;
+
+	snprintf(capa_memz_name, RTE_CRYPTODEV_NAME_MAX_LEN,
+			"QAT_ASYM_CAPA_GEN_%d",
+			qat_pci_dev->qat_dev_gen);
 	internals = cryptodev->data->dev_private;
 	internals->qat_dev = qat_pci_dev;
-	qat_pci_dev->asym_dev = internals;
 
 	internals->asym_dev_id = cryptodev->data->dev_id;
 	internals->qat_dev_capabilities = qat_gen1_asym_capabilities;
 
+	internals->capa_mz = rte_memzone_lookup(capa_memz_name);
+	if (internals->capa_mz == NULL) {
+		internals->capa_mz = rte_memzone_reserve(capa_memz_name,
+			sizeof(qat_gen1_asym_capabilities),
+			rte_socket_id(), 0);
+	}
+	if (internals->capa_mz == NULL) {
+		QAT_LOG(DEBUG,
+			"Error allocating memzone for capabilities, destroying PMD for %s",
+			name);
+		rte_cryptodev_pmd_destroy(cryptodev);
+		memset(&qat_dev_instance->asym_rte_dev, 0,
+			sizeof(qat_dev_instance->asym_rte_dev));
+		return -EFAULT;
+	}
+
+	memcpy(internals->capa_mz->addr, qat_gen1_asym_capabilities,
+			sizeof(qat_gen1_asym_capabilities));
+	internals->qat_dev_capabilities = internals->capa_mz->addr;
+
 	while (1) {
 		if (qat_dev_cmd_param[i].name == NULL)
 			break;
@@ -292,6 +335,7 @@  qat_asym_dev_create(struct qat_pci_device *qat_pci_dev,
 		i++;
 	}
 
+	qat_pci_dev->asym_dev = internals;
 	QAT_LOG(DEBUG, "Created QAT ASYM device %s as cryptodev instance %d",
 			cryptodev->data->name, internals->asym_dev_id);
 	return 0;
@@ -307,11 +351,13 @@  qat_asym_dev_destroy(struct qat_pci_device *qat_pci_dev)
 	if (qat_pci_dev->asym_dev == NULL)
 		return 0;
 
+	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+		rte_memzone_free(qat_pci_dev->asym_dev->capa_mz);
 	/* free crypto device */
 	cryptodev = rte_cryptodev_pmd_get_dev(
 			qat_pci_dev->asym_dev->asym_dev_id);
 	rte_cryptodev_pmd_destroy(cryptodev);
-	qat_pci_dev->asym_rte_dev.name = NULL;
+	qat_pci_devs[qat_pci_dev->qat_dev_id].asym_rte_dev.name = NULL;
 	qat_pci_dev->asym_dev = NULL;
 
 	return 0;
@@ -320,4 +366,4 @@  qat_asym_dev_destroy(struct qat_pci_device *qat_pci_dev)
 static struct cryptodev_driver qat_crypto_drv;
 RTE_PMD_REGISTER_CRYPTO_DRIVER(qat_crypto_drv,
 		cryptodev_qat_asym_driver,
-		cryptodev_qat_asym_driver_id);
+		qat_asym_driver_id);
diff --git a/drivers/crypto/qat/qat_asym_pmd.h b/drivers/crypto/qat/qat_asym_pmd.h
index 0535bc6..3b5abdd 100644
--- a/drivers/crypto/qat/qat_asym_pmd.h
+++ b/drivers/crypto/qat/qat_asym_pmd.h
@@ -13,7 +13,7 @@ 
 #define CRYPTODEV_NAME_QAT_ASYM_PMD	crypto_qat_asym
 
 
-extern uint8_t cryptodev_qat_asym_driver_id;
+extern uint8_t qat_asym_driver_id;
 
 /** private data structure for a QAT device.
  * This QAT device is a device offering only asymmetric crypto service,
@@ -26,6 +26,8 @@  struct qat_asym_dev_private {
 	/**< Device instance for this rte_cryptodev */
 	const struct rte_cryptodev_capabilities *qat_dev_capabilities;
 	/* QAT device asymmetric crypto capabilities */
+	const struct rte_memzone *capa_mz;
+	/* Shared memzone for storing capabilities */
 	uint16_t min_enq_burst_threshold;
 };
 
diff --git a/drivers/crypto/qat/qat_sym.c b/drivers/crypto/qat/qat_sym.c
index 55251d1..6d568ab 100644
--- a/drivers/crypto/qat/qat_sym.c
+++ b/drivers/crypto/qat/qat_sym.c
@@ -206,7 +206,7 @@  qat_sym_build_request(void *in_op, uint8_t *out_msg,
 		return -EINVAL;
 	} else if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 		ctx = (struct qat_sym_session *)get_sym_session_private_data(
-				op->sym->session, cryptodev_qat_driver_id);
+				op->sym->session, qat_sym_driver_id);
 #ifdef RTE_LIBRTE_SECURITY
 	} else {
 		ctx = (struct qat_sym_session *)get_sec_session_private_data(
diff --git a/drivers/crypto/qat/qat_sym.h b/drivers/crypto/qat/qat_sym.h
index 02e7239..dbca74e 100644
--- a/drivers/crypto/qat/qat_sym.h
+++ b/drivers/crypto/qat/qat_sym.h
@@ -197,7 +197,7 @@  qat_sym_process_response(void **op, uint8_t *resp)
 			sess = (struct qat_sym_session *)
 					get_sym_session_private_data(
 					rx_op->sym->session,
-					cryptodev_qat_driver_id);
+					qat_sym_driver_id);
 		}
 
 		rx_op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
diff --git a/drivers/crypto/qat/qat_sym_pmd.c b/drivers/crypto/qat/qat_sym_pmd.c
index 1561752..021669c 100644
--- a/drivers/crypto/qat/qat_sym_pmd.c
+++ b/drivers/crypto/qat/qat_sym_pmd.c
@@ -19,7 +19,7 @@ 
 
 #define MIXED_CRYPTO_MIN_FW_VER 0x04090000
 
-uint8_t cryptodev_qat_driver_id;
+uint8_t qat_sym_driver_id;
 
 static const struct rte_cryptodev_capabilities qat_gen1_sym_capabilities[] = {
 	QAT_BASE_GEN1_SYM_CAPABILITIES,
@@ -32,6 +32,12 @@  static const struct rte_cryptodev_capabilities qat_gen2_sym_capabilities[] = {
 	RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
 };
 
+static const struct rte_cryptodev_capabilities qat_gen3_sym_capabilities[] = {
+	QAT_BASE_GEN1_SYM_CAPABILITIES,
+	QAT_EXTRA_GEN2_SYM_CAPABILITIES,
+	RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
+};
+
 #ifdef RTE_LIBRTE_SECURITY
 static const struct rte_cryptodev_capabilities
 					qat_security_sym_capabilities[] = {
@@ -92,7 +98,7 @@  static void qat_sym_dev_info_get(struct rte_cryptodev *dev,
 			qat_qps_per_service(sym_hw_qps, QAT_SERVICE_SYMMETRIC);
 		info->feature_flags = dev->feature_flags;
 		info->capabilities = internals->qat_dev_capabilities;
-		info->driver_id = cryptodev_qat_driver_id;
+		info->driver_id = qat_sym_driver_id;
 		/* No limit of number of sessions */
 		info->sym.max_nb_sessions = 0;
 	}
@@ -304,14 +310,40 @@  qat_sym_dev_create(struct qat_pci_device *qat_pci_dev,
 		struct qat_dev_cmd_param *qat_dev_cmd_param __rte_unused)
 {
 	int i = 0;
+	struct qat_device_info *qat_dev_instance =
+			&qat_pci_devs[qat_pci_dev->qat_dev_id];
+
 	struct rte_cryptodev_pmd_init_params init_params = {
 			.name = "",
-			.socket_id = qat_pci_dev->pci_dev->device.numa_node,
+			.socket_id =
+				qat_dev_instance->pci_dev->device.numa_node,
 			.private_data_size = sizeof(struct qat_sym_dev_private)
 	};
 	char name[RTE_CRYPTODEV_NAME_MAX_LEN];
+	char capa_memz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 	struct rte_cryptodev *cryptodev;
 	struct qat_sym_dev_private *internals;
+	const struct rte_cryptodev_capabilities *capabilities;
+	uint64_t capa_size;
+	/*
+	* All processes must use same driver id so they can share sessions.
+	* Store driver_id so we can validate that all processes have the same
+	* value, typically they have, but could differ if binaries built
+	* separately.
+	*/
+	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+		qat_pci_dev->qat_sym_driver_id =
+				qat_sym_driver_id;
+	} else if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+		if (qat_pci_dev->qat_sym_driver_id !=
+				qat_sym_driver_id) {
+			QAT_LOG(ERR,
+					"Device %s have different driver id than corresponding device in primary process",
+					name);
+			return -(EFAULT);
+		}
+	}
+
 #ifdef RTE_LIBRTE_SECURITY
 	struct rte_security_ctx *security_instance;
 #endif
@@ -321,19 +353,19 @@  qat_sym_dev_create(struct qat_pci_device *qat_pci_dev,
 	QAT_LOG(DEBUG, "Creating QAT SYM device %s", name);
 
 	/* Populate subset device to use in cryptodev device creation */
-	qat_pci_dev->sym_rte_dev.driver = &cryptodev_qat_sym_driver;
-	qat_pci_dev->sym_rte_dev.numa_node =
-				qat_pci_dev->pci_dev->device.numa_node;
-	qat_pci_dev->sym_rte_dev.devargs = NULL;
+	qat_dev_instance->sym_rte_dev.driver = &cryptodev_qat_sym_driver;
+	qat_dev_instance->sym_rte_dev.numa_node =
+			qat_dev_instance->pci_dev->device.numa_node;
+	qat_dev_instance->sym_rte_dev.devargs = NULL;
 
 	cryptodev = rte_cryptodev_pmd_create(name,
-			&(qat_pci_dev->sym_rte_dev), &init_params);
+			&(qat_dev_instance->sym_rte_dev), &init_params);
 
 	if (cryptodev == NULL)
 		return -ENODEV;
 
-	qat_pci_dev->sym_rte_dev.name = cryptodev->data->name;
-	cryptodev->driver_id = cryptodev_qat_driver_id;
+	qat_dev_instance->sym_rte_dev.name = cryptodev->data->name;
+	cryptodev->driver_id = qat_sym_driver_id;
 	cryptodev->dev_ops = &crypto_qat_ops;
 
 	cryptodev->enqueue_burst = qat_sym_pmd_enqueue_op_burst;
@@ -350,6 +382,13 @@  qat_sym_dev_create(struct qat_pci_device *qat_pci_dev,
 			RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED |
 			RTE_CRYPTODEV_FF_SECURITY;
 
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return 0;
+
+	snprintf(capa_memz_name, RTE_CRYPTODEV_NAME_MAX_LEN,
+			"QAT_SYM_CAPA_GEN_%d",
+			qat_pci_dev->qat_dev_gen);
+
 #ifdef RTE_LIBRTE_SECURITY
 	security_instance = rte_malloc("qat_sec",
 				sizeof(struct rte_security_ctx),
@@ -368,24 +407,48 @@  qat_sym_dev_create(struct qat_pci_device *qat_pci_dev,
 
 	internals = cryptodev->data->dev_private;
 	internals->qat_dev = qat_pci_dev;
-	qat_pci_dev->sym_dev = internals;
 
 	internals->sym_dev_id = cryptodev->data->dev_id;
 	switch (qat_pci_dev->qat_dev_gen) {
 	case QAT_GEN1:
-		internals->qat_dev_capabilities = qat_gen1_sym_capabilities;
+		capabilities = qat_gen1_sym_capabilities;
+		capa_size = sizeof(qat_gen1_sym_capabilities);
 		break;
 	case QAT_GEN2:
+		capabilities = qat_gen2_sym_capabilities;
+		capa_size = sizeof(qat_gen2_sym_capabilities);
+		break;
 	case QAT_GEN3:
-		internals->qat_dev_capabilities = qat_gen2_sym_capabilities;
+		capabilities = qat_gen3_sym_capabilities;
+		capa_size = sizeof(qat_gen3_sym_capabilities);
 		break;
 	default:
-		internals->qat_dev_capabilities = qat_gen2_sym_capabilities;
 		QAT_LOG(DEBUG,
-			"QAT gen %d capabilities unknown, default to GEN2",
-					qat_pci_dev->qat_dev_gen);
-		break;
+			"QAT gen %d capabilities unknown",
+			qat_pci_dev->qat_dev_gen);
+		rte_cryptodev_pmd_destroy(cryptodev);
+		memset(&qat_dev_instance->sym_rte_dev, 0,
+			sizeof(qat_dev_instance->sym_rte_dev));
+		return -(EINVAL);
+	}
+	internals->capa_mz = rte_memzone_lookup(capa_memz_name);
+	if (internals->capa_mz == NULL) {
+		internals->capa_mz = rte_memzone_reserve(capa_memz_name,
+			capa_size,
+			rte_socket_id(), 0);
 	}
+	if (internals->capa_mz == NULL) {
+		QAT_LOG(DEBUG,
+			"Error allocating memzone for capabilities, destroying PMD for %s",
+			name);
+		rte_cryptodev_pmd_destroy(cryptodev);
+		memset(&qat_dev_instance->sym_rte_dev, 0,
+			sizeof(qat_dev_instance->sym_rte_dev));
+		return -EFAULT;
+	}
+
+	memcpy(internals->capa_mz->addr, capabilities, capa_size);
+	internals->qat_dev_capabilities = internals->capa_mz->addr;
 
 	while (1) {
 		if (qat_dev_cmd_param[i].name == NULL)
@@ -396,8 +459,10 @@  qat_sym_dev_create(struct qat_pci_device *qat_pci_dev,
 		i++;
 	}
 
+	qat_pci_dev->sym_dev = internals;
 	QAT_LOG(DEBUG, "Created QAT SYM device %s as cryptodev instance %d",
 			cryptodev->data->name, internals->sym_dev_id);
+
 	return 0;
 }
 
@@ -410,6 +475,8 @@  qat_sym_dev_destroy(struct qat_pci_device *qat_pci_dev)
 		return -ENODEV;
 	if (qat_pci_dev->sym_dev == NULL)
 		return 0;
+	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+		rte_memzone_free(qat_pci_dev->sym_dev->capa_mz);
 
 	/* free crypto device */
 	cryptodev = rte_cryptodev_pmd_get_dev(qat_pci_dev->sym_dev->sym_dev_id);
@@ -417,7 +484,7 @@  qat_sym_dev_destroy(struct qat_pci_device *qat_pci_dev)
 	rte_free(cryptodev->security_ctx);
 #endif
 	rte_cryptodev_pmd_destroy(cryptodev);
-	qat_pci_dev->sym_rte_dev.name = NULL;
+	qat_pci_devs[qat_pci_dev->qat_dev_id].sym_rte_dev.name = NULL;
 	qat_pci_dev->sym_dev = NULL;
 
 	return 0;
@@ -426,4 +493,4 @@  qat_sym_dev_destroy(struct qat_pci_device *qat_pci_dev)
 static struct cryptodev_driver qat_crypto_drv;
 RTE_PMD_REGISTER_CRYPTO_DRIVER(qat_crypto_drv,
 		cryptodev_qat_sym_driver,
-		cryptodev_qat_driver_id);
+		qat_sym_driver_id);
diff --git a/drivers/crypto/qat/qat_sym_pmd.h b/drivers/crypto/qat/qat_sym_pmd.h
index c625fef..f32a77e 100644
--- a/drivers/crypto/qat/qat_sym_pmd.h
+++ b/drivers/crypto/qat/qat_sym_pmd.h
@@ -23,7 +23,7 @@ 
 #define QAT_SYM_CAP_MIXED_CRYPTO	(1 << 0)
 #define QAT_SYM_CAP_VALID		(1 << 31)
 
-extern uint8_t cryptodev_qat_driver_id;
+extern uint8_t qat_sym_driver_id;
 
 /** private data structure for a QAT device.
  * This QAT device is a device offering only symmetric crypto service,
@@ -36,6 +36,8 @@  struct qat_sym_dev_private {
 	/**< Device instance for this rte_cryptodev */
 	const struct rte_cryptodev_capabilities *qat_dev_capabilities;
 	/* QAT device symmetric crypto capabilities */
+	const struct rte_memzone *capa_mz;
+	/* Shared memzone for storing capabilities */
 	uint16_t min_enq_burst_threshold;
 	uint32_t internal_capabilities; /* see flags QAT_SYM_CAP_xxx */
 };