Imported Upstream version 17.05

[deb_dpdk.git] / drivers / net / ark / ark_rqp.h

diff --git a/drivers/net/ark/ark_rqp.h b/drivers/net/ark/ark_rqp.h
new file mode 100644 (file)
index 0000000..0c38007
--- /dev/null
+++ b/drivers/net/ark/ark_rqp.h
@@ -0,0 +1,86 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright (c) 2015-2017 Atomic Rules LLC
+ * 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 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
+ * 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 _ARK_RQP_H_
+#define _ARK_RQP_H_
+
+#include <stdint.h>
+
+#include <rte_memory.h>
+
+/* The RQP or ReQuest Pacer is an internal Arkville hardware module
+ * which limits the PCIE data flow to insure correct operation for the
+ * particular hardware PCIE endpoint.
+ * This module is *not* intended for end-user manipulation, hence
+ * there is minimal documentation.
+ */
+
+/*
+ * RQ Pacing core hardware structure
+ * This is an overlay structures to a memory mapped FPGA device.  These
+ * structs will never be instantiated in ram memory
+ */
+struct ark_rqpace_t {
+       volatile uint32_t ctrl;
+       volatile uint32_t stats_clear;
+       volatile uint32_t cplh_max;
+       volatile uint32_t cpld_max;
+       volatile uint32_t err_cnt;
+       volatile uint32_t stall_ps;
+       volatile uint32_t stall_ps_min;
+       volatile uint32_t stall_ps_max;
+       volatile uint32_t req_ps;
+       volatile uint32_t req_ps_min;
+       volatile uint32_t req_ps_max;
+       volatile uint32_t req_dw_ps;
+       volatile uint32_t req_dw_ps_min;
+       volatile uint32_t req_dw_ps_max;
+       volatile uint32_t cpl_ps;
+       volatile uint32_t cpl_ps_min;
+       volatile uint32_t cpl_ps_max;
+       volatile uint32_t cpl_dw_ps;
+       volatile uint32_t cpl_dw_ps_min;
+       volatile uint32_t cpl_dw_ps_max;
+       volatile uint32_t cplh_pending;
+       volatile uint32_t cpld_pending;
+       volatile uint32_t cplh_pending_max;
+       volatile uint32_t cpld_pending_max;
+       volatile uint32_t err_count_other;
+       char eval[4];
+       volatile int lasped;
+};
+
+void ark_rqp_dump(struct ark_rqpace_t *rqp);
+void ark_rqp_stats_reset(struct ark_rqpace_t *rqp);
+int ark_rqp_lasped(struct ark_rqpace_t *rqp);
+#endif