New upstream version 17.11-rc3

[deb_dpdk.git] / drivers / net / nfp / nfp_nspu.h

diff --git a/drivers/net/nfp/nfp_nspu.h b/drivers/net/nfp/nfp_nspu.h
new file mode 100644 (file)
index 0000000..8c33835
--- /dev/null
+++ b/drivers/net/nfp/nfp_nspu.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2017 Netronome Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *  this list of conditions and the following disclaimer.
+ *
+ * 2. 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
+ *
+ * 3. Neither the name of the copyright holder 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 HOLDER 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.
+ */
+
+/*
+ * vim:shiftwidth=8:noexpandtab
+ *
+ * @file dpdk/pmd/nfp_nspu.h
+ *
+ * Netronome NFP_NET PDM driver
+ */
+
+/*
+ * NSP is the NFP Service Processor. NSPU is NSP Userspace interface.
+ *
+ * NFP NSP helps with firmware/hardware configuration. NSP is another component
+ * in NFP programmable processor and accessing it from host requires to firstly
+ * configure a specific NFP PCI expansion BAR.
+ *
+ * Once access is ready, configuration can be done reading and writing
+ * from/to a specific PF PCI BAR window. This same interface will allow to
+ * create other PCI BAR windows for accessing other NFP components.
+ *
+ * This file includes low-level functions, using the NSPU interface, and high
+ * level functions, invoked by the PMD for using NSP services. This allows
+ * firmware upload, vNIC PCI BARs mapping and other low-level configurations
+ * like link setup.
+ *
+ * NSP access is done during initialization and it is not involved at all with
+ * the fast path.
+ */
+
+#include <rte_spinlock.h>
+#include "nfp_net_eth.h"
+
+typedef struct {
+       int nfp;        /* NFP device */
+       int pcie_bar;   /* PF PCI BAR to work with */
+       int exp_bar;    /* Expansion BAR number used by NSPU */
+       int barsz;      /* PCIE BAR log2 size */
+       uint64_t bufaddr;  /* commands buffer address */
+       size_t buf_size;   /* commands buffer size */
+       uint64_t windowsz; /* NSPU BAR window size */
+       void *cfg_base; /* Expansion BARs address */
+       void *mem_base; /* NSP interface */
+       rte_spinlock_t nsp_lock;
+} nspu_desc_t;
+
+int nfp_nspu_init(nspu_desc_t *desc, int nfp, int pcie_bar, size_t pcie_barsz,
+                 int exp_bar, void *exp_bar_cfg_base, void *exp_bar_mmap);
+int nfp_nsp_get_abi_version(nspu_desc_t *desc, int *major, int *minor);
+int nfp_nsp_fw_setup(nspu_desc_t *desc, const char *sym, uint64_t *pcie_offset);
+int nfp_nsp_map_ctrl_bar(nspu_desc_t *desc, uint64_t *pcie_offset);
+void nfp_nsp_map_queues_bar(nspu_desc_t *desc, uint64_t *pcie_offset);
+int nfp_nsp_eth_config(nspu_desc_t *desc, int port, int up);
+int nfp_nsp_eth_read_table(nspu_desc_t *desc, union eth_table_entry **table);