Add the start and stop functions for DSA hardware devices.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
---
drivers/raw/ioat/idxd_pci.c | 52 ++++++++++++++++++++++++++++++++++++
drivers/raw/ioat/idxd_vdev.c | 50 ++++++++++++++++++++++++++++++++++
2 files changed, 102 insertions(+)
@@ -51,10 +51,62 @@ idxd_is_wq_enabled(struct idxd_rawdev *idxd)
return (state & WQ_STATE_MASK) == 0x1;
}
+static void
+idxd_pci_dev_stop(struct rte_rawdev *dev)
+{
+ struct idxd_rawdev *idxd = dev->dev_private;
+ uint8_t err_code;
+
+ if (!idxd_is_wq_enabled(idxd)) {
+ IOAT_PMD_ERR("Work queue %d already disabled", idxd->qid);
+ return;
+ }
+
+ err_code = idxd_pci_dev_command(idxd, idxd_disable_wq);
+ if (err_code || idxd_is_wq_enabled(idxd)) {
+ IOAT_PMD_ERR("Failed disabling work queue %d, error code: %#x",
+ idxd->qid, err_code);
+ return;
+ }
+ IOAT_PMD_DEBUG("Work queue %d disabled OK", idxd->qid);
+
+ return;
+}
+
+static int
+idxd_pci_dev_start(struct rte_rawdev *dev)
+{
+ struct idxd_rawdev *idxd = dev->dev_private;
+ uint8_t err_code;
+
+ if (idxd_is_wq_enabled(idxd)) {
+ IOAT_PMD_WARN("WQ %d already enabled", idxd->qid);
+ return 0;
+ }
+
+ if (idxd->public.batch_ring == NULL) {
+ IOAT_PMD_ERR("WQ %d has not been fully configured", idxd->qid);
+ return -EINVAL;
+ }
+
+ err_code = idxd_pci_dev_command(idxd, idxd_enable_wq);
+ if (err_code || !idxd_is_wq_enabled(idxd)) {
+ IOAT_PMD_ERR("Failed enabling work queue %d, error code: %#x",
+ idxd->qid, err_code);
+ return err_code == 0 ? -1 : err_code;
+ }
+
+ IOAT_PMD_DEBUG("Work queue %d enabled OK", idxd->qid);
+
+ return 0;
+}
+
static const struct rte_rawdev_ops idxd_pci_ops = {
.dev_selftest = idxd_rawdev_test,
.dump = idxd_dev_dump,
.dev_configure = idxd_dev_configure,
+ .dev_start = idxd_pci_dev_start,
+ .dev_stop = idxd_pci_dev_stop,
};
/* each portal uses 4 x 4k pages */
@@ -32,10 +32,60 @@ struct idxd_vdev_args {
uint8_t wq_id;
};
+static void
+idxd_vdev_stop(struct rte_rawdev *dev)
+{
+ struct idxd_rawdev *idxd = dev->dev_private;
+ int ret;
+
+ if (!accfg_wq_is_enabled(idxd->u.vdev.wq)) {
+ IOAT_PMD_ERR("Work queue %s already disabled",
+ accfg_wq_get_devname(idxd->u.vdev.wq));
+ return;
+ }
+
+ ret = accfg_wq_disable(idxd->u.vdev.wq);
+ if (ret) {
+ IOAT_PMD_INFO("Work queue %s not disabled, continuing...",
+ accfg_wq_get_devname(idxd->u.vdev.wq));
+ return;
+ }
+ IOAT_PMD_DEBUG("Disabling work queue %s OK",
+ accfg_wq_get_devname(idxd->u.vdev.wq));
+
+ return;
+}
+
+static int
+idxd_vdev_start(struct rte_rawdev *dev)
+{
+ struct idxd_rawdev *idxd = dev->dev_private;
+ int ret;
+
+ if (accfg_wq_is_enabled(idxd->u.vdev.wq)) {
+ IOAT_PMD_ERR("Work queue %s already enabled",
+ accfg_wq_get_devname(idxd->u.vdev.wq));
+ return 0;
+ }
+
+ ret = accfg_wq_enable(idxd->u.vdev.wq);
+ if (ret) {
+ IOAT_PMD_ERR("Error enabling work queue %s",
+ accfg_wq_get_devname(idxd->u.vdev.wq));
+ return -1;
+ }
+ IOAT_PMD_DEBUG("Enabling work queue %s OK",
+ accfg_wq_get_devname(idxd->u.vdev.wq));
+
+ return 0;
+}
+
static const struct rte_rawdev_ops idxd_vdev_ops = {
.dev_selftest = idxd_rawdev_test,
.dump = idxd_dev_dump,
.dev_configure = idxd_dev_configure,
+ .dev_start = idxd_vdev_start,
+ .dev_stop = idxd_vdev_stop,
};
static void *