qcacmn: Changes to create DP ML context

Changes to create DP ML context and associate
with CP MLO manager.

Change-Id: Ic254c883de7c6d6db0fe722a48f0faabbaad0247

dp/wifi3.0/be/mlo/dp_mlo.c

@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <wlan_utility.h>
+#include <dp_internal.h>
+#include <dp_htt.h>
+#include <hal_be_api.h>
+#include "dp_mlo.h"
+
+/*
+ * dp_mlo_ctxt_attach_wifi3 () – Attach DP MLO context
+ *
+ * Return: DP MLO context handle on success, NULL on failure
+ */
+struct cdp_mlo_ctxt *
+dp_mlo_ctxt_attach_wifi3(struct cdp_ctrl_mlo_mgr *ctrl_ctxt)
+{
+	struct dp_mlo_ctxt *mlo_ctxt =
+		qdf_mem_malloc(sizeof(struct dp_mlo_ctxt));
+
+	if (!mlo_ctxt) {
+		dp_err("Failed to allocate DP MLO Context");
+		return NULL;
+	}
+
+	mlo_ctxt->ctrl_ctxt = ctrl_ctxt;
+
+	return dp_mlo_ctx_to_cdp(mlo_ctxt);
+}
+
+qdf_export_symbol(dp_mlo_ctxt_attach_wifi3);
+
+/*
+ * dp_mlo_ctxt_detach_wifi3 () – Detach DP MLO context
+ *
+ * @ml_ctxt: pointer to DP MLO context
+ *
+ * Return: void
+ */
+void dp_mlo_ctxt_detach_wifi3(struct cdp_mlo_ctxt *ml_ctxt)
+{
+	qdf_mem_free(ml_ctxt);
+}
+
+qdf_export_symbol(dp_mlo_ctxt_detach_wifi3);
+
+/*
+ * dp_mlo_set_soc_by_chip_id() – Add DP soc to ML context soc list
+ *
+ * @ml_ctxt: DP ML context handle
+ * @soc: DP soc handle
+ * @chip_id: MLO chip id
+ *
+ * Return: void
+ */
+void dp_mlo_set_soc_by_chip_id(struct dp_mlo_ctxt *ml_ctxt,
+			       struct dp_soc *soc,
+			       uint8_t chip_id)
+{
+	qdf_spin_lock_bh(&ml_ctxt->ml_soc_list_lock);
+	ml_ctxt->ml_soc_list[chip_id] = soc;
+	qdf_spin_unlock_bh(&ml_ctxt->ml_soc_list_lock);
+}
+
+/*
+ * dp_mlo_get_soc_ref_by_chip_id() – Get DP soc from DP ML context.
+ * This API will increment a reference count for DP soc. Caller has
+ * to take care for decrementing refcount.
+ *
+ * @ml_ctxt: DP ML context handle
+ * @chip_id: MLO chip id
+ *
+ * Return: dp_soc
+ */
+struct dp_soc*
+dp_mlo_get_soc_ref_by_chip_id(struct dp_mlo_ctxt *ml_ctxt,
+			      uint8_t chip_id)
+{
+	struct dp_soc *soc = NULL;
+
+	qdf_spin_lock_bh(&ml_ctxt->ml_soc_list_lock);
+	qdf_atomic_inc(&soc->ref_count);
+	soc = ml_ctxt->ml_soc_list[chip_id];
+	qdf_spin_unlock_bh(&ml_ctxt->ml_soc_list_lock);
+
+	return soc;
+}

dp/wifi3.0/be/mlo/dp_mlo.h

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#ifndef __DP_MLO_H
+#define __DP_MLO_H
+
+#include <dp_types.h>
+#include <dp_be.h>
+
+/* Max number of chips that can participate in MLO */
+#define DP_MAX_MLO_CHIPS 3
+
+/*
+ * dp_mlo_ctxt
+ *
+ * @ctrl_ctxt: opaque handle of cp mlo mgr
+ * @ml_soc_list: list of socs which are mlo enabled. This also maintains
+ *               mlo_chip_id to dp_soc mapping
+ * @ml_soc_list_lock: lock to protect ml_soc_list
+ * @ml_peer_hash: peer hash table for ML peers
+ *           Associated peer with this MAC address)
+ * @ml_peer_hash_lock: lock to protect ml_peer_hash
+ */
+struct dp_mlo_ctxt {
+	struct cdp_ctrl_mlo_mgr *ctrl_ctxt;
+	struct dp_soc *ml_soc_list[DP_MAX_MLO_CHIPS];
+	qdf_spinlock_t ml_soc_list_lock;
+	struct {
+		uint32_t mask;
+		uint32_t idx_bits;
+
+		TAILQ_HEAD(, dp_peer) * bins;
+	} ml_peer_hash;
+
+	qdf_spinlock_t ml_peer_hash_lock;
+};
+
+/**
+ * dp_mlo_ctx_to_cdp() - typecast dp mlo context to CDP context
+ * @mlo_ctxt: DP MLO context
+ *
+ * Return: struct cdp_mlo_ctxt pointer
+ */
+static inline
+struct cdp_mlo_ctxt *dp_mlo_ctx_to_cdp(struct dp_mlo_ctxt *mlo_ctxt)
+{
+	return (struct cdp_mlo_ctxt *)mlo_ctxt;
+}
+
+/**
+ * cdp_mlo_ctx_to_dp() - typecast cdp_soc_t to
+ * dp soc handle
+ * @psoc: CDP psoc handle
+ *
+ * Return: struct dp_soc pointer
+ */
+static inline
+struct dp_mlo_ctxt *cdp_mlo_ctx_to_dp(struct cdp_mlo_ctxt *mlo_ctxt)
+{
+	return (struct dp_mlo_ctxt *)mlo_ctxt;
+}
+#endif /* __DP_MLO_H */