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From: Kamil Rytarowski <krytarowski@caviumnetworks.com>
To: <dev@dpdk.org>
CC: <maciej.czekaj@caviumnetworks.com>, <zyta.szpak@semihalf.com>,
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Date: Fri, 30 Sep 2016 14:05:42 +0200
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Subject: [dpdk-dev] [PATCH v2 03/15] net/thunderx/base: add family of
functions to store qsets
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From: Kamil Rytarowski <kamil.rytarowski@caviumnetworks.com>
This interface (nicvf_bsvf) will be used for secondary queue set support.
Signed-off-by: Maciej Czekaj <maciej.czekaj@caviumnetworks.com>
Signed-off-by: Kamil Rytarowski <kamil.rytarowski@caviumnetworks.com>
Signed-off-by: Zyta Szpak <zyta.szpak@semihalf.com>
Signed-off-by: Slawomir Rosek <slawomir.rosek@semihalf.com>
Signed-off-by: Radoslaw Biernacki <rad@semihalf.com>
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
---
drivers/net/thunderx/Makefile | 1 +
drivers/net/thunderx/base/nicvf_bsvf.c | 72 ++++++++++++++++++++++++++++++++
drivers/net/thunderx/base/nicvf_bsvf.h | 76 ++++++++++++++++++++++++++++++++++
3 files changed, 149 insertions(+)
create mode 100644 drivers/net/thunderx/base/nicvf_bsvf.c
create mode 100644 drivers/net/thunderx/base/nicvf_bsvf.h
diff --git a/drivers/net/thunderx/Makefile b/drivers/net/thunderx/Makefile
index 8ea6b45..711400a 100644
--- a/drivers/net/thunderx/Makefile
+++ b/drivers/net/thunderx/Makefile
@@ -57,6 +57,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_THUNDERX_NICVF_PMD) += nicvf_rxtx.c
SRCS-$(CONFIG_RTE_LIBRTE_THUNDERX_NICVF_PMD) += nicvf_hw.c
SRCS-$(CONFIG_RTE_LIBRTE_THUNDERX_NICVF_PMD) += nicvf_mbox.c
SRCS-$(CONFIG_RTE_LIBRTE_THUNDERX_NICVF_PMD) += nicvf_ethdev.c
+SRCS-$(CONFIG_RTE_LIBRTE_THUNDERX_NICVF_PMD) += nicvf_bsvf.c
ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
CFLAGS_nicvf_rxtx.o += -fno-prefetch-loop-arrays
diff --git a/drivers/net/thunderx/base/nicvf_bsvf.c b/drivers/net/thunderx/base/nicvf_bsvf.c
new file mode 100644
index 0000000..9e028a3
--- /dev/null
+++ b/drivers/net/thunderx/base/nicvf_bsvf.c
@@ -0,0 +1,72 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright (C) Cavium networks Ltd. 2016.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Cavium networks nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <assert.h>
+#include <stddef.h>
+#include <err.h>
+
+#include "nicvf_bsvf.h"
+#include "nicvf_plat.h"
+
+static SIMPLEQ_HEAD(, svf_entry) head = SIMPLEQ_HEAD_INITIALIZER(head);
+
+void
+nicvf_bsvf_push(struct svf_entry *entry)
+{
+ assert(entry != NULL);
+ assert(entry->vf != NULL);
+
+ SIMPLEQ_INSERT_TAIL(&head, entry, next);
+}
+
+struct svf_entry *
+nicvf_bsvf_pop(void)
+{
+ struct svf_entry *entry;
+
+ assert(!SIMPLEQ_EMPTY(&head));
+
+ entry = SIMPLEQ_FIRST(&head);
+
+ assert(entry != NULL);
+ assert(entry->vf != NULL);
+
+ SIMPLEQ_REMOVE_HEAD(&head, next);
+
+ return entry;
+}
+
+int
+nicvf_bsvf_empty(void)
+{
+ return SIMPLEQ_EMPTY(&head);
+}
diff --git a/drivers/net/thunderx/base/nicvf_bsvf.h b/drivers/net/thunderx/base/nicvf_bsvf.h
new file mode 100644
index 0000000..5d5a25e
--- /dev/null
+++ b/drivers/net/thunderx/base/nicvf_bsvf.h
@@ -0,0 +1,76 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright (C) Cavium networks Ltd. 2016.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Cavium networks nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __THUNDERX_NICVF_BSVF_H__
+#define __THUNDERX_NICVF_BSVF_H__
+
+#include <sys/queue.h>
+
+struct nicvf;
+
+/**
+ * The base queue structure to hold secondary qsets.
+ */
+struct svf_entry {
+ SIMPLEQ_ENTRY(svf_entry) next; /**< Next element's pointer */
+ struct nicvf *vf; /**< Holder of a secondary qset */
+};
+
+/**
+ * Enqueue new entry to secondary qsets.
+ *
+ * @param entry
+ * Entry to be enqueued.
+ */
+void
+nicvf_bsvf_push(struct svf_entry *entry);
+
+/**
+ * Dequeue an entry from secondary qsets.
+ *
+ * @return
+ * Dequeued entry.
+ */
+struct svf_entry *
+nicvf_bsvf_pop(void);
+
+/**
+ * Check if the queue of secondary qsets is empty.
+ *
+ * @return
+ * 0 on non-empty
+ * otherwise empty
+ */
+int
+nicvf_bsvf_empty(void);
+
+#endif /* __THUNDERX_NICVF_BSVF_H__ */
--
1.9.1