common/qat: add multi-process handling of capabilities

[dpdk.git] / drivers / crypto / qat / qat_sym_pmd.c

diff --git a/drivers/crypto/qat/qat_sym_pmd.c b/drivers/crypto/qat/qat_sym_pmd.c
index 6ef9a34..f6f9f5b 100644 (file)
--- a/drivers/crypto/qat/qat_sym_pmd.c
+++ b/drivers/crypto/qat/qat_sym_pmd.c
@@ -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[] = {
@@ -314,8 +320,11 @@ qat_sym_dev_create(struct qat_pci_device *qat_pci_dev,
                        .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.
@@ -377,6 +386,10 @@ qat_sym_dev_create(struct qat_pci_device *qat_pci_dev,
        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),
@@ -399,18 +412,45 @@ qat_sym_dev_create(struct qat_pci_device *qat_pci_dev,
        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:
                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)
@@ -437,6 +477,8 @@ 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);