#include <rte_security_driver.h>
#include <rte_hexdump.h>
+#include <caam_jr_config.h>
+#include <caam_jr_hw_specific.h>
+#include <caam_jr_pvt.h>
#include <caam_jr_log.h>
+/* RTA header files */
+#include <hw/desc/common.h>
+#include <of.h>
+
#define CRYPTODEV_NAME_CAAM_JR_PMD crypto_caam_jr
static uint8_t cryptodev_driver_id;
int caam_jr_logtype;
+enum rta_sec_era rta_sec_era;
+
+/* Lists the states possible for the SEC user space driver. */
+enum sec_driver_state_e {
+ SEC_DRIVER_STATE_IDLE, /* Driver not initialized */
+ SEC_DRIVER_STATE_STARTED, /* Driver initialized and can be used*/
+ SEC_DRIVER_STATE_RELEASE, /* Driver release is in progress */
+};
+
+/* Job rings used for communication with SEC HW */
+static struct sec_job_ring_t g_job_rings[MAX_SEC_JOB_RINGS];
+
+/* The current state of SEC user space driver */
+static enum sec_driver_state_e g_driver_state = SEC_DRIVER_STATE_IDLE;
+
+/* The number of job rings used by SEC user space driver */
+static int g_job_rings_no;
+static int g_job_rings_max;
+
+/* @brief Poll the HW for already processed jobs in the JR
+ * and silently discard the available jobs or notify them to UA
+ * with indicated error code.
+ *
+ * @param [in,out] job_ring The job ring to poll.
+ * @param [in] do_notify Can be #TRUE or #FALSE. Indicates if
+ * descriptors are to be discarded
+ * or notified to UA with given error_code.
+ * @param [out] notified_descs Number of notified descriptors. Can be NULL
+ * if do_notify is #FALSE
+ */
+static void
+hw_flush_job_ring(struct sec_job_ring_t *job_ring,
+ uint32_t do_notify,
+ uint32_t *notified_descs)
+{
+ int32_t jobs_no_to_discard = 0;
+ int32_t discarded_descs_no = 0;
+
+ PMD_INIT_FUNC_TRACE();
+ CAAM_JR_DEBUG("Jr[%p] pi[%d] ci[%d].Flushing jr notify desc=[%d]",
+ job_ring, job_ring->pidx, job_ring->cidx, do_notify);
+
+ jobs_no_to_discard = hw_get_no_finished_jobs(job_ring);
+
+ /* Discard all jobs */
+ CAAM_JR_DEBUG("Jr[%p] pi[%d] ci[%d].Discarding %d descs",
+ job_ring, job_ring->pidx, job_ring->cidx,
+ jobs_no_to_discard);
+
+ while (jobs_no_to_discard > discarded_descs_no) {
+ discarded_descs_no++;
+ /* Now increment the consumer index for the current job ring,
+ * AFTER saving job in temporary location!
+ * Increment the consumer index for the current job ring
+ */
+ job_ring->cidx = SEC_CIRCULAR_COUNTER(job_ring->cidx,
+ SEC_JOB_RING_SIZE);
+
+ hw_remove_entries(job_ring, 1);
+ }
+
+ if (do_notify == true) {
+ ASSERT(notified_descs != NULL);
+ *notified_descs = discarded_descs_no;
+ }
+}
+
+
+/* @brief Flush job rings of any processed descs.
+ * The processed descs are silently dropped,
+ * WITHOUT being notified to UA.
+ */
+static void
+close_job_ring(struct sec_job_ring_t *job_ring)
+{
+ PMD_INIT_FUNC_TRACE();
+ if (job_ring->irq_fd) {
+ /* Producer index is frozen. If consumer index is not equal
+ * with producer index, then we have descs to flush.
+ */
+ while (job_ring->pidx != job_ring->cidx)
+ hw_flush_job_ring(job_ring, false, NULL);
+
+ /* free the uio job ring */
+ free_job_ring(job_ring->irq_fd);
+ job_ring->irq_fd = 0;
+ caam_jr_dma_free(job_ring->input_ring);
+ caam_jr_dma_free(job_ring->output_ring);
+ g_job_rings_no--;
+ }
+}
+
+/** @brief Release the software and hardware resources tied to a job ring.
+ * @param [in] job_ring The job ring
+ *
+ * @retval 0 for success
+ * @retval -1 for error
+ */
+static int
+shutdown_job_ring(struct sec_job_ring_t *job_ring)
+{
+ int ret = 0;
+
+ PMD_INIT_FUNC_TRACE();
+ ASSERT(job_ring != NULL);
+ ret = hw_shutdown_job_ring(job_ring);
+ SEC_ASSERT(ret == 0, ret,
+ "Failed to shutdown hardware job ring %p",
+ job_ring);
+
+ if (job_ring->coalescing_en)
+ hw_job_ring_disable_coalescing(job_ring);
+
+ if (job_ring->jr_mode != SEC_NOTIFICATION_TYPE_POLL) {
+ ret = caam_jr_disable_irqs(job_ring->irq_fd);
+ SEC_ASSERT(ret == 0, ret,
+ "Failed to disable irqs for job ring %p",
+ job_ring);
+ }
+
+ return ret;
+}
+
/*
* @brief Release the resources used by the SEC user space driver.
*
static int
caam_jr_dev_uninit(struct rte_cryptodev *dev)
{
+ struct sec_job_ring_t *internals;
+
+ PMD_INIT_FUNC_TRACE();
if (dev == NULL)
return -ENODEV;
+ internals = dev->data->dev_private;
+ rte_free(dev->security_ctx);
+
+ /* If any descriptors in flight , poll and wait
+ * until all descriptors are received and silently discarded.
+ */
+ if (internals) {
+ shutdown_job_ring(internals);
+ close_job_ring(internals);
+ rte_mempool_free(internals->ctx_pool);
+ }
+
CAAM_JR_INFO("Closing crypto device %s", dev->data->name);
- return 0;
+ /* last caam jr instance) */
+ if (g_job_rings_no == 0)
+ g_driver_state = SEC_DRIVER_STATE_IDLE;
+
+ return SEC_SUCCESS;
+}
+
+/* @brief Initialize the software and hardware resources tied to a job ring.
+ * @param [in] jr_mode; Model to be used by SEC Driver to receive
+ * notifications from SEC. Can be either
+ * of the three: #SEC_NOTIFICATION_TYPE_NAPI
+ * #SEC_NOTIFICATION_TYPE_IRQ or
+ * #SEC_NOTIFICATION_TYPE_POLL
+ * @param [in] NAPI_mode The NAPI work mode to configure a job ring at
+ * startup. Used only when #SEC_NOTIFICATION_TYPE
+ * is set to #SEC_NOTIFICATION_TYPE_NAPI.
+ * @param [in] irq_coalescing_timer This value determines the maximum
+ * amount of time after processing a
+ * descriptor before raising an interrupt.
+ * @param [in] irq_coalescing_count This value determines how many
+ * descriptors are completed before
+ * raising an interrupt.
+ * @param [in] reg_base_addr, The job ring base address register
+ * @param [in] irq_id The job ring interrupt identification number.
+ * @retval job_ring_handle for successful job ring configuration
+ * @retval NULL on error
+ *
+ */
+static void *
+init_job_ring(void *reg_base_addr, uint32_t irq_id)
+{
+ struct sec_job_ring_t *job_ring = NULL;
+ int i, ret = 0;
+ int jr_mode = SEC_NOTIFICATION_TYPE_POLL;
+ int napi_mode = 0;
+ int irq_coalescing_timer = 0;
+ int irq_coalescing_count = 0;
+
+ for (i = 0; i < MAX_SEC_JOB_RINGS; i++) {
+ if (g_job_rings[i].irq_fd == 0) {
+ job_ring = &g_job_rings[i];
+ g_job_rings_no++;
+ break;
+ }
+ }
+ if (job_ring == NULL) {
+ CAAM_JR_ERR("No free job ring\n");
+ return NULL;
+ }
+
+ job_ring->register_base_addr = reg_base_addr;
+ job_ring->jr_mode = jr_mode;
+ job_ring->napi_mode = 0;
+ job_ring->irq_fd = irq_id;
+
+ /* Allocate mem for input and output ring */
+
+ /* Allocate memory for input ring */
+ job_ring->input_ring = caam_jr_dma_mem_alloc(L1_CACHE_BYTES,
+ SEC_DMA_MEM_INPUT_RING_SIZE);
+ memset(job_ring->input_ring, 0, SEC_DMA_MEM_INPUT_RING_SIZE);
+
+ /* Allocate memory for output ring */
+ job_ring->output_ring = caam_jr_dma_mem_alloc(L1_CACHE_BYTES,
+ SEC_DMA_MEM_OUTPUT_RING_SIZE);
+ memset(job_ring->output_ring, 0, SEC_DMA_MEM_OUTPUT_RING_SIZE);
+
+ /* Reset job ring in SEC hw and configure job ring registers */
+ ret = hw_reset_job_ring(job_ring);
+ if (ret != 0) {
+ CAAM_JR_ERR("Failed to reset hardware job ring");
+ goto cleanup;
+ }
+
+ if (jr_mode == SEC_NOTIFICATION_TYPE_NAPI) {
+ /* When SEC US driver works in NAPI mode, the UA can select
+ * if the driver starts with IRQs on or off.
+ */
+ if (napi_mode == SEC_STARTUP_INTERRUPT_MODE) {
+ CAAM_JR_INFO("Enabling DONE IRQ generationon job ring - %p",
+ job_ring);
+ ret = caam_jr_enable_irqs(job_ring->irq_fd);
+ if (ret != 0) {
+ CAAM_JR_ERR("Failed to enable irqs for job ring");
+ goto cleanup;
+ }
+ }
+ } else if (jr_mode == SEC_NOTIFICATION_TYPE_IRQ) {
+ /* When SEC US driver works in pure interrupt mode,
+ * IRQ's are always enabled.
+ */
+ CAAM_JR_INFO("Enabling DONE IRQ generation on job ring - %p",
+ job_ring);
+ ret = caam_jr_enable_irqs(job_ring->irq_fd);
+ if (ret != 0) {
+ CAAM_JR_ERR("Failed to enable irqs for job ring");
+ goto cleanup;
+ }
+ }
+ if (irq_coalescing_timer || irq_coalescing_count) {
+ hw_job_ring_set_coalescing_param(job_ring,
+ irq_coalescing_timer,
+ irq_coalescing_count);
+
+ hw_job_ring_enable_coalescing(job_ring);
+ job_ring->coalescing_en = 1;
+ }
+
+ job_ring->jr_state = SEC_JOB_RING_STATE_STARTED;
+ job_ring->max_nb_queue_pairs = RTE_CAAM_MAX_NB_SEC_QPS;
+ job_ring->max_nb_sessions = RTE_CAAM_JR_PMD_MAX_NB_SESSIONS;
+
+ return job_ring;
+cleanup:
+ caam_jr_dma_free(job_ring->output_ring);
+ caam_jr_dma_free(job_ring->input_ring);
+ return NULL;
}
+
static int
caam_jr_dev_init(const char *name,
struct rte_vdev_device *vdev,
struct rte_cryptodev_pmd_init_params *init_params)
{
struct rte_cryptodev *dev;
+ struct uio_job_ring *job_ring;
+ char str[RTE_CRYPTODEV_NAME_MAX_LEN];
PMD_INIT_FUNC_TRACE();
+ /* Validate driver state */
+ if (g_driver_state == SEC_DRIVER_STATE_IDLE) {
+ g_job_rings_max = sec_configure();
+ if (!g_job_rings_max) {
+ CAAM_JR_ERR("No job ring detected on UIO !!!!");
+ return -1;
+ }
+ /* Update driver state */
+ g_driver_state = SEC_DRIVER_STATE_STARTED;
+ }
+
+ if (g_job_rings_no >= g_job_rings_max) {
+ CAAM_JR_ERR("No more job rings available max=%d!!!!",
+ g_job_rings_max);
+ return -1;
+ }
+
+ job_ring = config_job_ring();
+ if (job_ring == NULL) {
+ CAAM_JR_ERR("failed to create job ring");
+ goto init_error;
+ }
+
+ snprintf(str, sizeof(str), "caam_jr%d", job_ring->jr_id);
+
dev = rte_cryptodev_pmd_create(name, &vdev->device, init_params);
if (dev == NULL) {
CAAM_JR_ERR("failed to create cryptodev vdev");
goto cleanup;
}
+ /*TODO free it during teardown*/
+ dev->data->dev_private = init_job_ring(job_ring->register_base_addr,
+ job_ring->uio_fd);
+
+ if (!dev->data->dev_private) {
+ CAAM_JR_ERR("Ring memory allocation failed\n");
+ goto cleanup2;
+ }
dev->driver_id = cryptodev_driver_id;
dev->dev_ops = NULL;
return 0;
+cleanup2:
+ caam_jr_dev_uninit(dev);
+ rte_cryptodev_pmd_release_device(dev);
cleanup:
+ free_job_ring(job_ring->uio_fd);
+init_error:
CAAM_JR_ERR("driver %s: cryptodev_caam_jr_create failed",
init_params->name);
{
struct rte_cryptodev_pmd_init_params init_params = {
"",
- 128,
+ sizeof(struct sec_job_ring_t),
rte_socket_id(),
RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
};
input_args = rte_vdev_device_args(vdev);
rte_cryptodev_pmd_parse_input_args(&init_params, input_args);
+ /* if sec device version is not configured */
+ if (!rta_get_sec_era()) {
+ const struct device_node *caam_node;
+
+ for_each_compatible_node(caam_node, NULL, "fsl,sec-v4.0") {
+ const uint32_t *prop = of_get_property(caam_node,
+ "fsl,sec-era",
+ NULL);
+ if (prop) {
+ rta_set_sec_era(
+ INTL_SEC_ERA(cpu_to_caam32(*prop)));
+ break;
+ }
+ }
+ }
+#ifdef RTE_LIBRTE_PMD_CAAM_JR_BE
+ if (rta_get_sec_era() > RTA_SEC_ERA_8) {
+ RTE_LOG(ERR, PMD,
+ "CAAM is compiled in BE mode for device with sec era > 8???\n");
+ return -EINVAL;
+ }
+#endif
+
return caam_jr_dev_init(name, vdev, &init_params);
}
git.droids-corp.org / dpdk.git / commitdiff