New upstream version 17.11-rc3

[deb_dpdk.git] / drivers / net / octeontx / base / octeontx_pkovf.h

diff --git a/drivers/net/octeontx/base/octeontx_pkovf.h b/drivers/net/octeontx/base/octeontx_pkovf.h
new file mode 100644 (file)
index 0000000..cfc3715
--- /dev/null
+++ b/drivers/net/octeontx/base/octeontx_pkovf.h
@@ -0,0 +1,97 @@
+/*
+ *   BSD LICENSE
+ *
+ *   Copyright (C) Cavium Inc. 2017. 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 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        __OCTEONTX_PKO_H__
+#define        __OCTEONTX_PKO_H__
+
+/* PKO maximum constants */
+#define        PKO_VF_MAX                      (32)
+#define        PKO_VF_NUM_DQ                   (8)
+#define PKO_MAX_NUM_DQ                 (8)
+#define        PKO_DQ_DRAIN_TO                 (1000)
+
+#define PKO_DQ_FC_SKID                 (4)
+#define PKO_DQ_FC_DEPTH_PAGES          (2048)
+#define PKO_DQ_FC_STRIDE_16            (16)
+#define PKO_DQ_FC_STRIDE_128           (128)
+#define PKO_DQ_FC_STRIDE               PKO_DQ_FC_STRIDE_16
+
+#define PKO_DQ_KIND_BIT                        49
+#define PKO_DQ_STATUS_BIT              60
+#define PKO_DQ_OP_BIT                  48
+
+/* PKO VF register offsets from VF_BAR0 */
+#define        PKO_VF_DQ_SW_XOFF(gdq)          (0x000100 | (gdq) << 17)
+#define        PKO_VF_DQ_WM_CTL(gdq)           (0x000130 | (gdq) << 17)
+#define        PKO_VF_DQ_WM_CNT(gdq)           (0x000150 | (gdq) << 17)
+#define        PKO_VF_DQ_FC_CONFIG             (0x000160)
+#define        PKO_VF_DQ_FC_STATUS(gdq)        (0x000168 | (gdq) << 17)
+#define        PKO_VF_DQ_OP_SEND(gdq, op)      (0x001000 | (gdq) << 17 | (op) << 3)
+#define        PKO_VF_DQ_OP_OPEN(gdq)          (0x001100 | (gdq) << 17)
+#define        PKO_VF_DQ_OP_CLOSE(gdq)         (0x001200 | (gdq) << 17)
+#define        PKO_VF_DQ_OP_QUERY(gdq)         (0x001300 | (gdq) << 17)
+
+/* pko_send_hdr_s + pko_send_link */
+#define PKO_CMD_SZ                     (2 << 1)
+#define PKO_SEND_GATHER_SUBDC          (0x0ull << 60)
+#define PKO_SEND_GATHER_LDTYPE(x)      ((x) << 58)
+#define PKO_SEND_GATHER_GAUAR(x)       ((x) << 24)
+
+typedef struct octeontx_dq_s {
+       void *lmtline_va;
+       void *ioreg_va;
+       void *fc_status_va;
+} octeontx_dq_t;
+
+/**
+ * Function for extracting information out of a given DQ.
+ *
+ * It is intended to be used in slow path (configuration) in
+ * octeontx_pko_channel_query().
+ *
+ * @param dq The DQ to extract information from.
+ * @param out Pointer to the user's structure he wants to fill.
+ */
+typedef void (*octeontx_pko_dq_getter_t)(octeontx_dq_t *dq, void *out);
+
+int
+octeontx_pko_channel_query_dqs(int chanid, void *out, size_t out_elem_size,
+                              size_t dq_num, octeontx_pko_dq_getter_t getter);
+int octeontx_pko_channel_open(int dq_base, int dq_num, int chanid);
+int octeontx_pko_channel_close(int chanid);
+int octeontx_pko_channel_start(int chanid);
+int octeontx_pko_channel_stop(int chanid);
+int octeontx_pko_vf_count(void);
+int octeontx_pko_init_fc(const size_t pko_vf_count);
+void octeontx_pko_fc_free(void);
+
+#endif /* __OCTEONTX_PKO_H__ */