[dpdk-dev] [PATCH 01/40] bnxt: new driver for Broadcom NetXtreme-C devices

[Stephen Hurd <stephen.hurd@broadcom.com>]

Initial skeleton simply fails init.
Add nic guide and tie into build system.

Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com>
---
 MAINTAINERS                                     |   5 ++
 config/common_base                              |   5 ++
 doc/guides/nics/bnxt.rst                        |  49 +++++++++++
 drivers/net/Makefile                            |   1 +
 drivers/net/bnxt/Makefile                       |  63 ++++++++++++++
 drivers/net/bnxt/bnxt_ethdev.c                  | 104 ++++++++++++++++++++++++
 drivers/net/bnxt/rte_pmd_bnxt_version.map       |   4 +
 lib/librte_eal/common/include/rte_pci_dev_ids.h |  40 +++++++--
 mk/rte.app.mk                                   |   1 +
 9 files changed, 267 insertions(+), 5 deletions(-)
 create mode 100644 doc/guides/nics/bnxt.rst
 create mode 100644 drivers/net/bnxt/Makefile
 create mode 100644 drivers/net/bnxt/bnxt_ethdev.c
 create mode 100644 drivers/net/bnxt/rte_pmd_bnxt_version.map

diff --git a/MAINTAINERS b/MAINTAINERS
index 1953ea2..9a32cdf 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -396,6 +396,11 @@ M: Declan Doherty <declan.doherty@intel.com>
 F: drivers/crypto/null/
 F: doc/guides/cryptodevs/null.rst
 
+Broadcom BNXT PMD
+M: Stephen Hurd <stephen.hurd@broadcom.com>
+F: drivers/net/bnxt/
+F: doc/guides/nics/bnxt.rst
+
 
 Packet processing
 -----------------
diff --git a/config/common_base b/config/common_base
index 1a54e4c..08e617a 100644
--- a/config/common_base
+++ b/config/common_base
@@ -245,6 +245,11 @@ CONFIG_RTE_LIBRTE_NFP_PMD=n
 CONFIG_RTE_LIBRTE_NFP_DEBUG=n
 
 #
+# Compile burst-oriented Broadcom BNXT PMD driver
+#
+CONFIG_RTE_LIBRTE_BNXT_PMD=y
+
+#
 # Compile software PMD backed by SZEDATA2 device
 #
 CONFIG_RTE_LIBRTE_PMD_SZEDATA2=n
diff --git a/doc/guides/nics/bnxt.rst b/doc/guides/nics/bnxt.rst
new file mode 100644
index 0000000..2669e98
--- /dev/null
+++ b/doc/guides/nics/bnxt.rst
@@ -0,0 +1,49 @@
+..  BSD LICENSE
+    Copyright 2016 Broadcom Limited
+
+    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 Broadcom Limited 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.
+
+bnxt poll mode driver library
+=============================
+
+The bnxt poll mode library (**librte_pmd_bnxt**) implements support for
+**Broadcom NetXtreme® C-Series**.  These adapters support Standards-
+compliant 10/25/50Gbps 30MPPS full-duplex throughput.
+
+Information about this family of adapters can be found in the
+`NetXtreme® Brand section <https://www.broadcom.com/products/ethernet-communication-and-switching?technology%5B%5D=88>`_
+of the `Broadcom web site <http://www.broadcom.com/>`_.
+
+Limitations
+-----------
+
+With the current driver, allocated mbufs must be large enough to hold
+the entire received frame.  If the mbufs are not large enough, the
+packets will be dropped.  This is most limiting when jumbo frames are
+used.
+
+SR-IOV is not supported.
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 3386a67..ba03bca 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -45,6 +45,7 @@ DIRS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4
 DIRS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5
 DIRS-$(CONFIG_RTE_LIBRTE_MPIPE_PMD) += mpipe
 DIRS-$(CONFIG_RTE_LIBRTE_NFP_PMD) += nfp
+DIRS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += bnxt
 DIRS-$(CONFIG_RTE_LIBRTE_PMD_NULL) += null
 DIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += pcap
 DIRS-$(CONFIG_RTE_LIBRTE_PMD_RING) += ring
diff --git a/drivers/net/bnxt/Makefile b/drivers/net/bnxt/Makefile
new file mode 100644
index 0000000..89b4a27
--- /dev/null
+++ b/drivers/net/bnxt/Makefile
@@ -0,0 +1,63 @@
+#   BSD LICENSE
+#
+#   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+#   Copyright(c) 2014 6WIND S.A.
+#   Copyright(c) Broadcom Limited.
+#   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_bnxt.a
+
+LIBABIVER := 1
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+
+EXPORT_MAP := rte_pmd_bnxt_version.map
+
+#
+# all source are stored in SRCS-y
+#
+SRCS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += bnxt_ethdev.c
+
+#
+# Export include files
+#
+SYMLINK-y-include +=
+
+# this lib depends upon:
+DEPDIRS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += lib/librte_mbuf
+DEPDIRS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += lib/librte_ether
+DEPDIRS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += lib/librte_malloc
+
+include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
new file mode 100644
index 0000000..d6c0d51
--- /dev/null
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -0,0 +1,104 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) Broadcom Limited.
+ *   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 Broadcom 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 <inttypes.h>
+#include <stdbool.h>
+
+#include <rte_dev.h>
+#include <rte_ethdev.h>
+#include <rte_malloc.h>
+#include <rte_cycles.h>
+
+#define DRV_MODULE_NAME		"bnxt"
+static const char bnxt_version[] =
+	"Broadcom Cumulus driver " DRV_MODULE_NAME "\n";
+
+static struct rte_pci_id bnxt_pci_id_map[] = {
+#define RTE_PCI_DEV_ID_DECL_BNXT(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
+#include "rte_pci_dev_ids.h"
+	{.device_id = 0},
+};
+
+/*
+ * Initialization
+ */
+
+static int
+bnxt_dev_init(struct rte_eth_dev *eth_dev)
+{
+	static int version_printed;
+
+	if (version_printed++ == 0)
+		RTE_LOG(INFO, PMD, "%s", bnxt_version);
+
+	if (eth_dev->pci_dev->addr.function >= 2 &&
+			eth_dev->pci_dev->addr.function < 4) {
+		RTE_LOG(ERR, PMD, "Function not enabled %x:\n",
+			eth_dev->pci_dev->addr.function);
+		return -ENOMEM;
+	}
+
+	rte_eth_copy_pci_info(eth_dev, eth_dev->pci_dev);
+	return -EPERM;
+}
+
+static int
+bnxt_dev_uninit(struct rte_eth_dev *eth_dev __rte_unused) {
+	return 0;
+}
+
+static struct eth_driver bnxt_rte_pmd = {
+	.pci_drv = {
+		    .name = "rte_" DRV_MODULE_NAME "_pmd",
+		    .id_table = bnxt_pci_id_map,
+		    .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
+		    },
+	.eth_dev_init = bnxt_dev_init,
+	.eth_dev_uninit = bnxt_dev_uninit,
+	.dev_private_size = 32 /* this must be non-zero apparently */,
+};
+
+static int bnxt_rte_pmd_init(const char *name, const char *params __rte_unused)
+{
+	RTE_LOG(INFO, PMD, "bnxt_rte_pmd_init() called for %s\n", name);
+	rte_eth_driver_register(&bnxt_rte_pmd);
+	return 0;
+}
+
+static struct rte_driver bnxt_pmd_drv = {
+	.name = "eth_bnxt",
+	.type = PMD_PDEV,
+	.init = bnxt_rte_pmd_init,
+};
+
+PMD_REGISTER_DRIVER(bnxt_pmd_drv);
diff --git a/drivers/net/bnxt/rte_pmd_bnxt_version.map b/drivers/net/bnxt/rte_pmd_bnxt_version.map
new file mode 100644
index 0000000..349c6e1
--- /dev/null
+++ b/drivers/net/bnxt/rte_pmd_bnxt_version.map
@@ -0,0 +1,4 @@
+DPDK_16.04 {
+
+	local: *;
+};
diff --git a/lib/librte_eal/common/include/rte_pci_dev_ids.h b/lib/librte_eal/common/include/rte_pci_dev_ids.h
index cf7b548..af26e11 100644
--- a/lib/librte_eal/common/include/rte_pci_dev_ids.h
+++ b/lib/librte_eal/common/include/rte_pci_dev_ids.h
@@ -63,11 +63,12 @@
  * This file contains a list of the PCI device IDs recognised by DPDK, which
  * can be used to fill out an array of structures describing the devices.
  *
- * Currently four families of devices are recognised: those supported by the
- * IGB driver, by EM driver, those supported by the IXGBE driver, and by virtio
- * driver which is a para virtualization driver running in guest virtual machine.
- * The inclusion of these in an array built using this file depends on the
- * definition of
+ * Currently five families of devices are recognised: those supported by the
+ * IGB driver, by EM driver, those supported by the IXGBE driver, those
+ * supported by the BNXT driver, and by virtio driver which is a para
+ * virtualization driver running in guest virtual machine. The inclusion of
+ * these in an array built using this file depends on the definition of
+ * RTE_PCI_DEV_ID_DECL_BNXT
  * RTE_PCI_DEV_ID_DECL_EM
  * RTE_PCI_DEV_ID_DECL_IGB
  * RTE_PCI_DEV_ID_DECL_IGBVF
@@ -152,6 +153,10 @@
 #define RTE_PCI_DEV_ID_DECL_BNX2XVF(vend, dev)
 #endif
 
+#ifndef RTE_PCI_DEV_ID_DECL_BNXT
+#define RTE_PCI_DEV_ID_DECL_BNXT(vend, dev)
+#endif
+
 #ifndef PCI_VENDOR_ID_INTEL
 /** Vendor ID used by Intel devices */
 #define PCI_VENDOR_ID_INTEL 0x8086
@@ -686,6 +691,30 @@ RTE_PCI_DEV_ID_DECL_BNX2X(PCI_VENDOR_ID_BROADCOM, BNX2X_DEV_ID_57811_MF)
 RTE_PCI_DEV_ID_DECL_BNX2X(PCI_VENDOR_ID_BROADCOM, BNX2X_DEV_ID_57840_MF)
 #endif
 
+/****************** Broadcom bnxt devices ******************/
+
+#define BROADCOM_DEV_ID_57301                  0x16c8
+#define BROADCOM_DEV_ID_57302                  0x16c9
+#define BROADCOM_DEV_ID_57304_PF               0x16ca
+#define BROADCOM_DEV_ID_57304_VF               0x16cb
+#define BROADCOM_DEV_ID_57304_MF               0x16cc
+#define BROADCOM_DEV_ID_57402                  0x16d0
+#define BROADCOM_DEV_ID_57404                  0x16d1
+#define BROADCOM_DEV_ID_57406_PF               0x16d2
+#define BROADCOM_DEV_ID_57406_VF               0x16d3
+#define BROADCOM_DEV_ID_57406_MF               0x16d4
+
+RTE_PCI_DEV_ID_DECL_BNXT(PCI_VENDOR_ID_BROADCOM, BROADCOM_DEV_ID_57301)
+RTE_PCI_DEV_ID_DECL_BNXT(PCI_VENDOR_ID_BROADCOM, BROADCOM_DEV_ID_57302)
+RTE_PCI_DEV_ID_DECL_BNXT(PCI_VENDOR_ID_BROADCOM, BROADCOM_DEV_ID_57304_PF)
+RTE_PCI_DEV_ID_DECL_BNXT(PCI_VENDOR_ID_BROADCOM, BROADCOM_DEV_ID_57304_VF)
+RTE_PCI_DEV_ID_DECL_BNXT(PCI_VENDOR_ID_BROADCOM, BROADCOM_DEV_ID_57304_MF)
+RTE_PCI_DEV_ID_DECL_BNXT(PCI_VENDOR_ID_BROADCOM, BROADCOM_DEV_ID_57402)
+RTE_PCI_DEV_ID_DECL_BNXT(PCI_VENDOR_ID_BROADCOM, BROADCOM_DEV_ID_57404)
+RTE_PCI_DEV_ID_DECL_BNXT(PCI_VENDOR_ID_BROADCOM, BROADCOM_DEV_ID_57406_PF)
+RTE_PCI_DEV_ID_DECL_BNXT(PCI_VENDOR_ID_BROADCOM, BROADCOM_DEV_ID_57406_VF)
+RTE_PCI_DEV_ID_DECL_BNXT(PCI_VENDOR_ID_BROADCOM, BROADCOM_DEV_ID_57406_MF)
+
 /*
  * Undef all RTE_PCI_DEV_ID_DECL_* here.
  */
@@ -702,3 +731,4 @@ RTE_PCI_DEV_ID_DECL_BNX2X(PCI_VENDOR_ID_BROADCOM, BNX2X_DEV_ID_57840_MF)
 #undef RTE_PCI_DEV_ID_DECL_VMXNET3
 #undef RTE_PCI_DEV_ID_DECL_FM10K
 #undef RTE_PCI_DEV_ID_DECL_FM10KVF
+#undef RTE_PCI_DEV_ID_DECL_BNXT
diff --git a/mk/rte.app.mk b/mk/rte.app.mk
index c66e491..0c1e5cd 100644
--- a/mk/rte.app.mk
+++ b/mk/rte.app.mk
@@ -142,6 +142,7 @@ _LDLIBS-$(CONFIG_RTE_LIBRTE_ENA_PMD)        += -lrte_pmd_ena
 _LDLIBS-$(CONFIG_RTE_LIBRTE_MLX4_PMD)       += -lrte_pmd_mlx4
 _LDLIBS-$(CONFIG_RTE_LIBRTE_MLX5_PMD)       += -lrte_pmd_mlx5
 _LDLIBS-$(CONFIG_RTE_LIBRTE_NFP_PMD)        += -lrte_pmd_nfp
+_LDLIBS-$(CONFIG_RTE_LIBRTE_BNXT_PMD)       += -lrte_pmd_bnxt
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_SZEDATA2)   += -lrte_pmd_szedata2
 _LDLIBS-$(CONFIG_RTE_LIBRTE_MPIPE_PMD)      += -lrte_pmd_mpipe
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_RING)       += -lrte_pmd_ring
-- 
1.9.1