Imported Upstream version 16.07-rc1

[deb_dpdk.git] / drivers / net / bnxt / bnxt_ring.h

diff --git a/drivers/net/bnxt/bnxt_ring.h b/drivers/net/bnxt/bnxt_ring.h
new file mode 100644 (file)
index 0000000..8656549
--- /dev/null
+++ b/drivers/net/bnxt/bnxt_ring.h
@@ -0,0 +1,103 @@
+/*-
+ *   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.
+ */
+
+#ifndef _BNXT_RING_H_
+#define _BNXT_RING_H_
+
+#include <inttypes.h>
+
+#include <rte_memory.h>
+
+#define RING_NEXT(ring, idx)           (((idx) + 1) & (ring)->ring_mask)
+
+#define RTE_MBUF_DATA_DMA_ADDR(mb) \
+       ((uint64_t)((mb)->buf_physaddr + (mb)->data_off))
+
+#define DB_IDX_MASK                                            0xffffff
+#define DB_IDX_VALID                                           (0x1 << 26)
+#define DB_IRQ_DIS                                             (0x1 << 27)
+#define DB_KEY_TX                                              (0x0 << 28)
+#define DB_KEY_RX                                              (0x1 << 28)
+#define DB_KEY_CP                                              (0x2 << 28)
+#define DB_KEY_ST                                              (0x3 << 28)
+#define DB_KEY_TX_PUSH                                         (0x4 << 28)
+#define DB_LONG_TX_PUSH                                                (0x2 << 24)
+
+#define DEFAULT_CP_RING_SIZE   256
+#define DEFAULT_RX_RING_SIZE   256
+#define DEFAULT_TX_RING_SIZE   256
+
+#define MAX_TPA                128
+
+/* These assume 4k pages */
+#define MAX_RX_DESC_CNT (8 * 1024)
+#define MAX_TX_DESC_CNT (4 * 1024)
+#define MAX_CP_DESC_CNT (16 * 1024)
+
+#define INVALID_HW_RING_ID      ((uint16_t)-1)
+
+struct bnxt_ring {
+       void                    *bd;
+       phys_addr_t             bd_dma;
+       uint32_t                ring_size;
+       uint32_t                ring_mask;
+
+       int                     vmem_size;
+       void                    **vmem;
+
+       uint16_t                fw_ring_id; /* Ring id filled by Chimp FW */
+       const void              *mem_zone;
+};
+
+struct bnxt_ring_grp_info {
+       uint16_t        fw_stats_ctx;
+       uint16_t        fw_grp_id;
+       uint16_t        rx_fw_ring_id;
+       uint16_t        cp_fw_ring_id;
+       uint16_t        ag_fw_ring_id;
+};
+
+struct bnxt;
+struct bnxt_tx_ring_info;
+struct bnxt_rx_ring_info;
+struct bnxt_cp_ring_info;
+void bnxt_free_ring(struct bnxt_ring *ring);
+void bnxt_init_ring_grps(struct bnxt *bp);
+int bnxt_alloc_rings(struct bnxt *bp, uint16_t qidx,
+                           struct bnxt_tx_ring_info *tx_ring_info,
+                           struct bnxt_rx_ring_info *rx_ring_info,
+                           struct bnxt_cp_ring_info *cp_ring_info,
+                           const char *suffix);
+int bnxt_alloc_hwrm_rings(struct bnxt *bp);
+
+#endif