From 8d01b9cd70a67cdafd5b965a70420c3bd7fb3f82 Mon Sep 17 00:00:00 2001 From: Luca Boccassi Date: Thu, 1 Nov 2018 11:59:50 +0000 Subject: New upstream version 18.11-rc1 Change-Id: Iaa71986dd6332e878d8f4bf493101b2bbc6313bb Signed-off-by: Luca Boccassi --- drivers/net/enetc/enetc.h | 113 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 drivers/net/enetc/enetc.h (limited to 'drivers/net/enetc/enetc.h') diff --git a/drivers/net/enetc/enetc.h b/drivers/net/enetc/enetc.h new file mode 100644 index 00000000..0e80d1c5 --- /dev/null +++ b/drivers/net/enetc/enetc.h @@ -0,0 +1,113 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2018 NXP + */ + +#ifndef _ENETC_H_ +#define _ENETC_H_ + +#include + +#include "base/enetc_hw.h" + +#define PCI_VENDOR_ID_FREESCALE 0x1957 + +/* Max TX rings per ENETC. */ +#define MAX_TX_RINGS 2 + +/* Max RX rings per ENTEC. */ +#define MAX_RX_RINGS 1 + +/* Max BD counts per Ring. */ +#define MAX_BD_COUNT 64000 +/* Min BD counts per Ring. */ +#define MIN_BD_COUNT 32 +/* BD ALIGN */ +#define BD_ALIGN 8 + +/* + * upper_32_bits - return bits 32-63 of a number + * @n: the number we're accessing + * + * A basic shift-right of a 64- or 32-bit quantity. Use this to suppress + * the "right shift count >= width of type" warning when that quantity is + * 32-bits. + */ +#define upper_32_bits(n) ((uint32_t)(((n) >> 16) >> 16)) + +/* + * lower_32_bits - return bits 0-31 of a number + * @n: the number we're accessing + */ +#define lower_32_bits(n) ((uint32_t)(n)) + +#define ENETC_TXBD(BDR, i) (&(((struct enetc_tx_bd *)((BDR).bd_base))[i])) +#define ENETC_RXBD(BDR, i) (&(((union enetc_rx_bd *)((BDR).bd_base))[i])) + +struct enetc_swbd { + struct rte_mbuf *buffer_addr; +}; + +struct enetc_bdr { + struct rte_eth_dev *ndev; + struct rte_mempool *mb_pool; /* mbuf pool to populate RX ring. */ + void *bd_base; /* points to Rx or Tx BD ring */ + union { + void *tcir; + void *rcir; + }; + uint16_t index; + int bd_count; /* # of BDs */ + int next_to_use; + int next_to_clean; + struct enetc_swbd *q_swbd; + union { + void *tcisr; /* Tx */ + int next_to_alloc; /* Rx */ + }; +}; + +/* + * Structure to store private data for each driver instance (for each port). + */ +struct enetc_eth_adapter { + struct rte_eth_dev *ndev; + struct enetc_eth_hw hw; +}; + +#define ENETC_DEV_PRIVATE(adapter) \ + ((struct enetc_eth_adapter *)adapter) + +#define ENETC_DEV_PRIVATE_TO_HW(adapter) \ + (&((struct enetc_eth_adapter *)adapter)->hw) + +#define ENETC_DEV_PRIVATE_TO_STATS(adapter) \ + (&((struct enetc_eth_adapter *)adapter)->stats) + +#define ENETC_DEV_PRIVATE_TO_INTR(adapter) \ + (&((struct enetc_eth_adapter *)adapter)->intr) + +#define ENETC_GET_HW_ADDR(reg, addr) ((void *)(((size_t)reg) + (addr))) +#define ENETC_REG_READ(addr) (*(uint32_t *)addr) +#define ENETC_REG_WRITE(addr, val) (*(uint32_t *)addr = val) +#define ENETC_REG_WRITE_RELAXED(addr, val) (*(uint32_t *)addr = val) + +/* + * RX/TX ENETC function prototypes + */ +uint16_t enetc_xmit_pkts(void *txq, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts); +uint16_t enetc_recv_pkts(void *rxq, struct rte_mbuf **rx_pkts, + uint16_t nb_pkts); + + +int enetc_refill_rx_ring(struct enetc_bdr *rx_ring, const int buff_cnt); + +static inline int +enetc_bd_unused(struct enetc_bdr *bdr) +{ + if (bdr->next_to_clean > bdr->next_to_use) + return bdr->next_to_clean - bdr->next_to_use - 1; + + return bdr->bd_count + bdr->next_to_clean - bdr->next_to_use - 1; +} +#endif /* _ENETC_H_ */ -- cgit 1.2.3-korg