[v5,2/3] drivers/qat: add multi process handling of driver id
diff mbox series

Message ID 20200707150239.13400-3-arkadiuszx.kusztal@intel.com
State Accepted
Delegated to: akhil goyal
Headers show
Series
  • drivers/qat: improve handling of multi process
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Context Check Description
ci/Intel-compilation fail apply issues
ci/checkpatch success coding style OK

Commit Message

Kusztal, ArkadiuszX July 7, 2020, 3:02 p.m. UTC
As cryptodev driver_id is allocated per-process, a corner case exists where
binaries for primary and secondary processes could have different
driver_ids if built differently. Add checking in qat PMD to catch and
handle the case where driver_ids are inconsistent.

Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
---
 drivers/common/qat/qat_device.h   |  6 ++++++
 drivers/crypto/qat/qat_asym.c     |  4 ++--
 drivers/crypto/qat/qat_asym_pmd.c | 21 +++++++++++++++++----
 drivers/crypto/qat/qat_asym_pmd.h |  2 +-
 drivers/crypto/qat/qat_sym.c      |  2 +-
 drivers/crypto/qat/qat_sym.h      |  2 +-
 drivers/crypto/qat/qat_sym_pmd.c  | 27 +++++++++++++++++++++++----
 drivers/crypto/qat/qat_sym_pmd.h  |  2 +-
 8 files changed, 52 insertions(+), 14 deletions(-)

Patch
diff mbox series

diff --git a/drivers/common/qat/qat_device.h b/drivers/common/qat/qat_device.h
index b5fe394..e6337c6 100644
--- a/drivers/common/qat/qat_device.h
+++ b/drivers/common/qat/qat_device.h
@@ -92,10 +92,16 @@  struct qat_pci_device {
 	struct qat_sym_dev_private *sym_dev;
 	/**< link back to cryptodev private data */
 
+	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 */
 
+	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 */
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 cc448cd..d584ac7 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;
 	}
@@ -251,6 +251,19 @@  qat_asym_dev_create(struct qat_pci_device *qat_pci_dev,
 	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);
@@ -268,7 +281,7 @@  qat_asym_dev_create(struct qat_pci_device *qat_pci_dev,
 		return -ENODEV;
 
 	qat_dev_instance->asym_rte_dev.name = cryptodev->data->name;
-	cryptodev->driver_id = cryptodev_qat_asym_driver_id;
+	cryptodev->driver_id = qat_asym_driver_id;
 	cryptodev->dev_ops = &crypto_qat_ops;
 
 	cryptodev->enqueue_burst = qat_asym_pmd_enqueue_op_burst;
@@ -326,4 +339,4 @@  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..ddf413f 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,
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 bdcb42e..6ef9a34 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,
@@ -92,7 +92,7 @@  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;
 	}
@@ -317,6 +317,25 @@  qat_sym_dev_create(struct qat_pci_device *qat_pci_dev,
 	struct rte_cryptodev *cryptodev;
 	struct qat_sym_dev_private *internals;
 
+	/*
+	 * 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
@@ -338,7 +357,7 @@  qat_sym_dev_create(struct qat_pci_device *qat_pci_dev,
 		return -ENODEV;
 
 	qat_dev_instance->sym_rte_dev.name = cryptodev->data->name;
-	cryptodev->driver_id = cryptodev_qat_driver_id;
+	cryptodev->driver_id = qat_sym_driver_id;
 	cryptodev->dev_ops = &crypto_qat_ops;
 
 	cryptodev->enqueue_burst = qat_sym_pmd_enqueue_op_burst;
@@ -434,4 +453,4 @@  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..cf4e1a0 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,