X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fcommon%2Focteontx2%2Fotx2_common.c;h=7e45366390abce3ac8b3bd2a9cb658af9cff5db9;hb=9a8e7062c81c3ce855e27b06e1d849e087ddfa79;hp=a4b91b4f1a535bb4b2b63175435eef410c7059ad;hpb=dd543124cd93d57f46a5a9302c6feb8809b6171b;p=dpdk.git

diff --git a/drivers/common/octeontx2/otx2_common.c b/drivers/common/octeontx2/otx2_common.c
index a4b91b4f1a..7e45366390 100644
--- a/drivers/common/octeontx2/otx2_common.c
+++ b/drivers/common/octeontx2/otx2_common.c
@@ -2,9 +2,172 @@
  * Copyright(C) 2019 Marvell International Ltd.
  */
 
+#include <rte_atomic.h>
+#include <rte_malloc.h>
 #include <rte_log.h>
 
 #include "otx2_common.h"
+#include "otx2_dev.h"
+#include "otx2_mbox.h"
+
+/**
+ * @internal
+ * Set default NPA configuration.
+ */
+void
+otx2_npa_set_defaults(struct otx2_idev_cfg *idev)
+{
+	idev->npa_pf_func = 0;
+	rte_atomic16_set(&idev->npa_refcnt, 0);
+}
+
+/**
+ * @internal
+ * Get intra device config structure.
+ */
+struct otx2_idev_cfg *
+otx2_intra_dev_get_cfg(void)
+{
+	const char name[] = "octeontx2_intra_device_conf";
+	const struct rte_memzone *mz;
+	struct otx2_idev_cfg *idev;
+
+	mz = rte_memzone_lookup(name);
+	if (mz != NULL)
+		return mz->addr;
+
+	/* Request for the first time */
+	mz = rte_memzone_reserve_aligned(name, sizeof(struct otx2_idev_cfg),
+					 SOCKET_ID_ANY, 0, OTX2_ALIGN);
+	if (mz != NULL) {
+		idev = mz->addr;
+		idev->sso_pf_func = 0;
+		idev->npa_lf = NULL;
+		otx2_npa_set_defaults(idev);
+		return idev;
+	}
+	return NULL;
+}
+
+/**
+ * @internal
+ * Get SSO PF_FUNC.
+ */
+uint16_t
+otx2_sso_pf_func_get(void)
+{
+	struct otx2_idev_cfg *idev;
+	uint16_t sso_pf_func;
+
+	sso_pf_func = 0;
+	idev = otx2_intra_dev_get_cfg();
+
+	if (idev != NULL)
+		sso_pf_func = idev->sso_pf_func;
+
+	return sso_pf_func;
+}
+
+/**
+ * @internal
+ * Set SSO PF_FUNC.
+ */
+void
+otx2_sso_pf_func_set(uint16_t sso_pf_func)
+{
+	struct otx2_idev_cfg *idev;
+
+	idev = otx2_intra_dev_get_cfg();
+
+	if (idev != NULL) {
+		idev->sso_pf_func = sso_pf_func;
+		rte_smp_wmb();
+	}
+}
+
+/**
+ * @internal
+ * Get NPA PF_FUNC.
+ */
+uint16_t
+otx2_npa_pf_func_get(void)
+{
+	struct otx2_idev_cfg *idev;
+	uint16_t npa_pf_func;
+
+	npa_pf_func = 0;
+	idev = otx2_intra_dev_get_cfg();
+
+	if (idev != NULL)
+		npa_pf_func = idev->npa_pf_func;
+
+	return npa_pf_func;
+}
+
+/**
+ * @internal
+ * Get NPA lf object.
+ */
+struct otx2_npa_lf *
+otx2_npa_lf_obj_get(void)
+{
+	struct otx2_idev_cfg *idev;
+
+	idev = otx2_intra_dev_get_cfg();
+
+	if (idev != NULL && rte_atomic16_read(&idev->npa_refcnt))
+		return idev->npa_lf;
+
+	return NULL;
+}
+
+/**
+ * @internal
+ * Is NPA lf active for the given device?.
+ */
+int
+otx2_npa_lf_active(void *otx2_dev)
+{
+	struct otx2_dev *dev = otx2_dev;
+	struct otx2_idev_cfg *idev;
+
+	/* Check if npalf is actively used on this dev */
+	idev = otx2_intra_dev_get_cfg();
+	if (!idev || !idev->npa_lf || idev->npa_lf->mbox != dev->mbox)
+		return 0;
+
+	return rte_atomic16_read(&idev->npa_refcnt);
+}
+
+/*
+ * @internal
+ * Gets reference only to existing NPA LF object.
+ */
+int otx2_npa_lf_obj_ref(void)
+{
+	struct otx2_idev_cfg *idev;
+	uint16_t cnt;
+	int rc;
+
+	idev = otx2_intra_dev_get_cfg();
+
+	/* Check if ref not possible */
+	if (idev == NULL)
+		return -EINVAL;
+
+
+	/* Get ref only if > 0 */
+	cnt = rte_atomic16_read(&idev->npa_refcnt);
+	while (cnt != 0) {
+		rc = rte_atomic16_cmpset(&idev->npa_refcnt_u16, cnt, cnt + 1);
+		if (rc)
+			break;
+
+		cnt = rte_atomic16_read(&idev->npa_refcnt);
+	}
+
+	return cnt ? 0 : -EINVAL;
+}
 
 /**
  * @internal