[dpdk-dev] [PATCH 03/18] fm10k: Add empty fm10k files

["Chen Jing D(Mark)" <jing.d.chen@intel.com>]

From: Jeff Shaw <jeffrey.b.shaw@intel.com>

Define macros and basic data structure.
Define rte_log wrapper functions.

Signed-off-by: Jeff Shaw <jeffrey.b.shaw@intel.com>
Signed-off-by: Chen Jing D(Mark) <jing.d.chen@intel.com>
---
 lib/librte_pmd_fm10k/Makefile     |   96 ++++++++++++++++
 lib/librte_pmd_fm10k/fm10k.h      |  224 +++++++++++++++++++++++++++++++++++++
 lib/librte_pmd_fm10k/fm10k_logs.h |   66 +++++++++++
 3 files changed, 386 insertions(+), 0 deletions(-)
 create mode 100644 lib/librte_pmd_fm10k/Makefile
 create mode 100644 lib/librte_pmd_fm10k/fm10k.h
 create mode 100644 lib/librte_pmd_fm10k/fm10k_ethdev.c
 create mode 100644 lib/librte_pmd_fm10k/fm10k_logs.h
 create mode 100644 lib/librte_pmd_fm10k/fm10k_rxtx.c

diff --git a/lib/librte_pmd_fm10k/Makefile b/lib/librte_pmd_fm10k/Makefile
new file mode 100644
index 0000000..3d76387
--- /dev/null
+++ b/lib/librte_pmd_fm10k/Makefile
@@ -0,0 +1,96 @@
+#   BSD LICENSE
+#
+#   Copyright(c) 2013-2014 Intel Corporation. All rights reserved.
+#   All rights reserved.
+#
+#   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 Intel Corporation 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 $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_pmd_fm10k.a
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+
+ifeq ($(CC), icc)
+#
+# CFLAGS for icc
+#
+CFLAGS_BASE_DRIVER = -wd174 -wd593 -wd869 -wd981 -wd2259
+
+else ifeq ($(CC), clang)
+#
+## CFLAGS for clang
+#
+CFLAGS_BASE_DRIVER = -Wno-unused-parameter -Wno-unused-value
+CFLAGS_BASE_DRIVER += -Wno-strict-aliasing -Wno-format-extra-args
+CFLAGS_BASE_DRIVER += -Wno-unused-variable -Wno-unused-but-set-variable
+CFLAGS_BASE_DRIVER += -Wno-missing-field-initializers
+
+else
+#
+# CFLAGS for gcc
+#
+ifneq ($(shell test $(GCC_MAJOR_VERSION) -le 4 -a $(GCC_MINOR_VERSION) -le 3 && echo 1), 1)
+CFLAGS     += -Wno-deprecated
+endif
+CFLAGS_BASE_DRIVER = -Wno-unused-parameter -Wno-unused-value
+CFLAGS_BASE_DRIVER += -Wno-strict-aliasing -Wno-format-extra-args
+CFLAGS_BASE_DRIVER += -Wno-unused-variable -Wno-unused-but-set-variable
+CFLAGS_BASE_DRIVER += -Wno-missing-field-initializers
+endif
+
+#
+# Add extra flags for base driver source files to disable warnings in them
+#
+BASE_DRIVER_OBJS=$(patsubst %.c,%.o,$(notdir $(wildcard $(RTE_SDK)/lib/librte_pmd_fm10k/SHARED/*.c)))
+$(foreach obj, $(BASE_DRIVER_OBJS), $(eval CFLAGS_$(obj)+=$(CFLAGS_BASE_DRIVER)))
+
+VPATH += $(RTE_SDK)/lib/librte_pmd_fm10k/SHARED
+
+#
+# all source are stored in SRCS-y
+#
+SRCS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k_ethdev.c
+SRCS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k_rxtx.c
+
+SRCS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k_pf.c
+SRCS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k_tlv.c
+SRCS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k_common.c
+SRCS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k_mbx.c
+SRCS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k_vf.c
+SRCS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k_api.c
+
+# this lib depends upon:
+DEPDIRS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += lib/librte_eal lib/librte_ether
+DEPDIRS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += lib/librte_mempool lib/librte_mbuf
+DEPDIRS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += lib/librte_net lib/librte_malloc
+
+include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/lib/librte_pmd_fm10k/fm10k.h b/lib/librte_pmd_fm10k/fm10k.h
new file mode 100644
index 0000000..9b2d3da
--- /dev/null
+++ b/lib/librte_pmd_fm10k/fm10k.h
@@ -0,0 +1,224 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2013-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   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 Intel Corporation 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 _FM10K_H_
+#define _FM10K_H_
+
+#include <stdint.h>
+#include <rte_mbuf.h>
+#include <rte_mempool.h>
+#include <rte_malloc.h>
+#include <rte_spinlock.h>
+#include "fm10k_logs.h"
+#include "SHARED/fm10k_type.h"
+
+/* descriptor ring base addresses must be aligned to the following */
+#define FM10K_ALIGN_RX_DESC  128
+#define FM10K_ALIGN_TX_DESC  128
+
+/* The maximum packet size that FM10K supports */
+#define FM10K_MAX_PKT_SIZE  (15 * 1024)
+
+/* Minimum size of RX buffer FM10K supported */
+#define FM10K_MIN_RX_BUF_SIZE  256
+
+/* The maximum of SRIOV VFs per port supported */
+#define FM10K_MAX_VF_NUM    64
+
+/* number of descriptors must be a multiple of the following */
+#define FM10K_MULT_RX_DESC  FM10K_REQ_RX_DESCRIPTOR_MULTIPLE
+#define FM10K_MULT_TX_DESC  FM10K_REQ_TX_DESCRIPTOR_MULTIPLE
+
+/* maximum size of descriptor rings */
+#define FM10K_MAX_RX_RING_SZ  (512 * 1024)
+#define FM10K_MAX_TX_RING_SZ  (512 * 1024)
+
+/* minimum and maximum number of descriptors in a ring */
+#define FM10K_MIN_RX_DESC  32
+#define FM10K_MIN_TX_DESC  32
+#define FM10K_MAX_RX_DESC  (FM10K_MAX_RX_RING_SZ / sizeof(union fm10k_rx_desc))
+#define FM10K_MAX_TX_DESC  (FM10K_MAX_TX_RING_SZ / sizeof(struct fm10k_tx_desc))
+
+/*
+ * byte aligment for HW RX data buffer
+ * Datasheet requires RX buffer addresses shall either be 512-byte aligned or
+ * be 8-byte aligned but without crossing host memory pages (4KB alignment
+ * boundaries). Satisfy first option.
+ */
+#define FM10K_RX_DATABUF_ALIGN 512
+
+/*
+ * threshold default, min, max, and divisor constraints
+ * the configured values must satisfy the following:
+ *   MIN <= value <= MAX
+ *   DIV % value == 0
+ */
+#define FM10K_RX_FREE_THRESH_DEFAULT(rxq)  32
+#define FM10K_RX_FREE_THRESH_MIN(rxq)      1
+#define FM10K_RX_FREE_THRESH_MAX(rxq)      ((rxq)->nb_desc - 1)
+#define FM10K_RX_FREE_THRESH_DIV(rxq)      ((rxq)->nb_desc)
+
+#define FM10K_TX_FREE_THRESH_DEFAULT(txq)  32
+#define FM10K_TX_FREE_THRESH_MIN(txq)      1
+#define FM10K_TX_FREE_THRESH_MAX(txq)      ((txq)->nb_desc - 3)
+#define FM10K_TX_FREE_THRESH_DIV(txq)      0
+
+#define FM10K_DEFAULT_RX_PTHRESH      8
+#define FM10K_DEFAULT_RX_HTHRESH      8
+#define FM10K_DEFAULT_RX_WTHRESH      0
+
+#define FM10K_DEFAULT_TX_PTHRESH      32
+#define FM10K_DEFAULT_TX_HTHRESH      0
+#define FM10K_DEFAULT_TX_WTHRESH      0
+
+#define FM10K_TX_RS_THRESH_DEFAULT(txq)    32
+#define FM10K_TX_RS_THRESH_MIN(txq)        1
+#define FM10K_TX_RS_THRESH_MAX(txq)        \
+	RTE_MIN(((txq)->nb_desc - 2), (txq)->free_thresh)
+#define FM10K_TX_RS_THRESH_DIV(txq)        ((txq)->nb_desc)
+
+#define FM10K_VLAN_TAG_SIZE 4
+
+struct fm10k_dev_info {
+	volatile uint32_t enable;
+	volatile uint32_t glort;
+	/* Protect the mailbox to avoid race condition */
+	rte_spinlock_t    mbx_lock;
+};
+
+/*
+ * Structure to store private data for each driver instance.
+ */
+struct fm10k_adapter {
+	struct fm10k_hw             hw;
+	struct fm10k_hw_stats       stats;
+	struct fm10k_dev_info       info;
+};
+
+#define FM10K_DEV_PRIVATE_TO_HW(adapter) \
+	(&((struct fm10k_adapter *)adapter)->hw)
+
+#define FM10K_DEV_PRIVATE_TO_STATS(adapter) \
+	(&((struct fm10k_adapter *)adapter)->stats)
+
+#define FM10K_DEV_PRIVATE_TO_INFO(adapter) \
+	(&((struct fm10k_adapter *)adapter)->info)
+
+#define FM10K_DEV_PRIVATE_TO_MBXLOCK(adapter) \
+	(&(((struct fm10k_adapter *)adapter)->info.mbx_lock))
+
+struct fm10k_rx_queue {
+	struct rte_mempool *mp;
+	struct rte_mbuf **sw_ring;
+	volatile union fm10k_rx_desc *hw_ring;
+	struct rte_mbuf *pkt_first_seg; /**< First segment of current packet. */
+	struct rte_mbuf *pkt_last_seg;  /**< Last segment of current packet. */
+	uint64_t hw_ring_phys_addr;
+	uint16_t next_dd;
+	uint16_t next_alloc;
+	uint16_t next_trigger;
+	uint16_t alloc_thresh;
+	volatile uint32_t *tail_ptr;
+	uint16_t nb_desc;
+	uint16_t queue_id;
+	uint8_t port_id;
+	uint8_t drop_en;
+	uint8_t rx_deferred_start; /** < don't start this queue in dev start. */
+};
+
+/*
+ * a FIFO is used to track which descriptors have their RS bit set for Tx
+ * queues which are configured to allow multiple descriptors per packet
+ */
+struct fifo {
+	uint16_t *list;
+	uint16_t *head;
+	uint16_t *tail;
+	uint16_t *endp;
+};
+
+struct fm10k_tx_queue {
+	struct rte_mbuf **sw_ring;
+	struct fm10k_tx_desc *hw_ring;
+	uint64_t hw_ring_phys_addr;
+	struct fifo rs_tracker;
+	uint16_t last_free;
+	uint16_t next_free;
+	uint16_t nb_free;
+	uint16_t nb_used;
+	uint16_t free_trigger;
+	uint16_t free_thresh;
+	uint16_t rs_thresh;
+	volatile uint32_t *tail_ptr;
+	uint16_t nb_desc;
+	uint8_t port_id;
+	uint8_t tx_deferred_start; /** < don't start this queue in dev start. */
+	uint16_t queue_id;
+};
+
+#define MBUF_DMA_ADDR(mb) \
+	((uint64_t) ((mb)->buf_physaddr + (mb)->data_off))
+
+/* enforce 512B alignment on default Rx DMA addresses */
+#define MBUF_DMA_ADDR_DEFAULT(mb) \
+	((uint64_t) RTE_ALIGN(((mb)->buf_physaddr + RTE_PKTMBUF_HEADROOM), 512))
+
+static inline void fifo_reset(struct fifo *fifo, uint32_t len)
+{
+	fifo->head = fifo->tail = fifo->list;
+	fifo->endp = fifo->list + len;
+}
+
+static inline void fifo_insert(struct fifo *fifo, uint16_t val)
+{
+	*fifo->head = val;
+	if (++fifo->head == fifo->endp)
+		fifo->head = fifo->list;
+}
+
+/* do not worry about list being empty since we only check it once we know
+ * we have used enough descriptors to set the RS bit at least once */
+static inline uint16_t fifo_peek(struct fifo *fifo)
+{
+	return *fifo->tail;
+}
+
+static inline uint16_t fifo_remove(struct fifo *fifo)
+{
+	uint16_t val;
+	val = *fifo->tail;
+	if (++fifo->tail == fifo->endp)
+		fifo->tail = fifo->list;
+	return val;
+}
+#endif
diff --git a/lib/librte_pmd_fm10k/fm10k_ethdev.c b/lib/librte_pmd_fm10k/fm10k_ethdev.c
new file mode 100644
index 0000000..e69de29
diff --git a/lib/librte_pmd_fm10k/fm10k_logs.h b/lib/librte_pmd_fm10k/fm10k_logs.h
new file mode 100644
index 0000000..0b4cd24
--- /dev/null
+++ b/lib/librte_pmd_fm10k/fm10k_logs.h
@@ -0,0 +1,66 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2013-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   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 Intel Corporation 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 _FM10K_LOGS_H_
+#define _FM10K_LOGS_H_
+
+#include <rte_log.h>
+
+#ifdef RTE_LIBRTE_FM10K_DEBUG
+#define PMD_LOG(level, fmt, args...) \
+	RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
+#define PMD_FUNC_TRACE() PMD_LOG(DEBUG, " >>")
+#else
+#define PMD_LOG(level, fmt, args...) do { } while (0)
+#define PMD_FUNC_TRACE() do { } while (0)
+#endif
+
+#ifdef RTE_LIBRTE_FM10K_DEBUG_RX
+#define PMD_LOG_RX(level, fmt, args...) \
+	RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
+#define PMD_FUNC_TRACE_RX() PMD_LOG_RX(DEBUG, " >>")
+#else
+#define PMD_LOG_RX(level, fmt, args...) do { } while (0)
+#define PMD_FUNC_TRACE_RX() do { } while (0)
+#endif
+
+#ifdef RTE_LIBRTE_FM10K_DEBUG_TX
+#define PMD_LOG_TX(level, fmt, args...) \
+	RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
+#define PMD_FUNC_TRACE_TX() PMD_LOG_TX(DEBUG, " >>")
+#else
+#define PMD_LOG_TX(level, fmt, args...) do { } while (0)
+#define PMD_FUNC_TRACE_TX() do { } while (0)
+#endif
+
+#endif /* _FM10K_LOGS_H_ */
diff --git a/lib/librte_pmd_fm10k/fm10k_rxtx.c b/lib/librte_pmd_fm10k/fm10k_rxtx.c
new file mode 100644
index 0000000..e69de29
-- 
1.7.7.6