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freebsd-skq/sys/dev/et/if_etvar.h
Pedro F. Giffuni 7282444b10 sys/dev: further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:36:21 +00:00

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2007 Sepherosa Ziehau. All rights reserved.
*
* This code is derived from software contributed to The DragonFly Project
* by Sepherosa Ziehau <sepherosa@gmail.com>
*
* 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 DragonFly Project 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 HOLDERS 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.
*
* $DragonFly: src/sys/dev/netif/et/if_etvar.h,v 1.4 2007/10/23 14:28:42 sephe Exp $
* $FreeBSD$
*/
#ifndef _IF_ETVAR_H
#define _IF_ETVAR_H
#define ET_RING_ALIGN 4096
#define ET_STATUS_ALIGN 8
#define ET_NSEG_MAX 32 /* XXX no limit actually */
#define ET_NSEG_SPARE 4
#define ET_TX_NDESC 512
#define ET_RX_NDESC 512
#define ET_RX_NRING 2
#define ET_RX_NSTAT (ET_RX_NRING * ET_RX_NDESC)
#define ET_TX_RING_SIZE (ET_TX_NDESC * sizeof(struct et_txdesc))
#define ET_RX_RING_SIZE (ET_RX_NDESC * sizeof(struct et_rxdesc))
#define ET_RXSTAT_RING_SIZE (ET_RX_NSTAT * sizeof(struct et_rxstat))
#define ET_JUMBO_FRAMELEN (ET_MEM_SIZE - ET_MEM_RXSIZE_MIN - \
ET_MEM_TXSIZE_EX)
#define ET_JUMBO_MTU (ET_JUMBO_FRAMELEN - ETHER_HDR_LEN - \
EVL_ENCAPLEN - ETHER_CRC_LEN)
#define ET_FRAMELEN(mtu) (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + \
(mtu) + ETHER_CRC_LEN)
#define ET_JSLOTS (ET_RX_NDESC + 128)
#define ET_JLEN (ET_JUMBO_FRAMELEN + ETHER_ALIGN)
#define ET_JUMBO_MEM_SIZE (ET_JSLOTS * ET_JLEN)
#define CSR_WRITE_4(sc, reg, val) \
bus_write_4((sc)->sc_mem_res, (reg), (val))
#define CSR_READ_4(sc, reg) \
bus_read_4((sc)->sc_mem_res, (reg))
#define ET_ADDR_HI(addr) ((uint64_t) (addr) >> 32)
#define ET_ADDR_LO(addr) ((uint64_t) (addr) & 0xffffffff)
struct et_txdesc {
uint32_t td_addr_hi;
uint32_t td_addr_lo;
uint32_t td_ctrl1; /* ET_TDCTRL1_ */
uint32_t td_ctrl2; /* ET_TDCTRL2_ */
};
#define ET_TDCTRL1_LEN_MASK 0x0000FFFF
#define ET_TDCTRL2_LAST_FRAG 0x00000001
#define ET_TDCTRL2_FIRST_FRAG 0x00000002
#define ET_TDCTRL2_INTR 0x00000004
#define ET_TDCTRL2_CTRL_WORD 0x00000008
#define ET_TDCTRL2_HDX_BACKP 0x00000010
#define ET_TDCTRL2_XMIT_PAUSE 0x00000020
#define ET_TDCTRL2_FRAME_ERR 0x00000040
#define ET_TDCTRL2_NO_CRC 0x00000080
#define ET_TDCTRL2_MAC_OVRRD 0x00000100
#define ET_TDCTRL2_PAD_PACKET 0x00000200
#define ET_TDCTRL2_JUMBO_PACKET 0x00000400
#define ET_TDCTRL2_INS_VLAN 0x00000800
#define ET_TDCTRL2_CSUM_IP 0x00001000
#define ET_TDCTRL2_CSUM_TCP 0x00002000
#define ET_TDCTRL2_CSUM_UDP 0x00004000
struct et_rxdesc {
uint32_t rd_addr_lo;
uint32_t rd_addr_hi;
uint32_t rd_ctrl; /* ET_RDCTRL_ */
};
#define ET_RDCTRL_BUFIDX_MASK 0x000003FF
struct et_rxstat {
uint32_t rxst_info1;
uint32_t rxst_info2; /* ET_RXST_INFO2_ */
};
#define ET_RXST_INFO1_HASH_PASS 0x00000001
#define ET_RXST_INFO1_IPCSUM 0x00000002
#define ET_RXST_INFO1_IPCSUM_OK 0x00000004
#define ET_RXST_INFO1_TCPCSUM 0x00000008
#define ET_RXST_INFO1_TCPCSUM_OK 0x00000010
#define ET_RXST_INFO1_WOL 0x00000020
#define ET_RXST_INFO1_RXMAC_ERR 0x00000040
#define ET_RXST_INFO1_DROP 0x00000080
#define ET_RXST_INFO1_FRAME_TRUNC 0x00000100
#define ET_RXST_INFO1_JUMBO 0x00000200
#define ET_RXST_INFO1_VLAN 0x00000400
#define ET_RXST_INFO1_PREV_FRMAE_DROP 0x00010000
#define ET_RXST_INFO1_SHORT 0x00020000
#define ET_RXST_INFO1_BAD_CARRIER 0x00040000
#define ET_RXST_INFO1_CODE_ERR 0x00080000
#define ET_RXST_INFO1_CRC_ERR 0x00100000
#define ET_RXST_INFO1_LEN_MISMATCH 0x00200000
#define ET_RXST_INFO1_TOO_LONG 0x00400000
#define ET_RXST_INFO1_OK 0x00800000
#define ET_RXST_INFO1_MULTICAST 0x01000000
#define ET_RXST_INFO1_BROADCAST 0x02000000
#define ET_RXST_INFO1_DRIBBLE 0x04000000
#define ET_RXST_INFO1_CTL_FRAME 0x08000000
#define ET_RXST_INFO1_PAUSE_FRAME 0x10000000
#define ET_RXST_INFO1_UNKWN_CTL_FRAME 0x20000000
#define ET_RXST_INFO1_VLAN_TAG 0x40000000
#define ET_RXST_INFO1_LONG_EVENT 0x80000000
#define ET_RXST_INFO2_LEN_MASK 0x0000FFFF
#define ET_RXST_INFO2_LEN_SHIFT 0
#define ET_RXST_INFO2_BUFIDX_MASK 0x03FF0000
#define ET_RXST_INFO2_BUFIDX_SHIFT 16
#define ET_RXST_INFO2_RINGIDX_MASK 0x0C000000
#define ET_RXST_INFO2_RINGIDX_SHIFT 26
struct et_rxstatus {
uint32_t rxs_ring;
uint32_t rxs_stat_ring; /* ET_RXS_STATRING_ */
};
#define ET_RXS_STATRING_INDEX_MASK 0x0FFF0000
#define ET_RXS_STATRING_INDEX_SHIFT 16
#define ET_RXS_STATRING_WRAP 0x10000000
struct et_txbuf {
struct mbuf *tb_mbuf;
bus_dmamap_t tb_dmap;
};
struct et_rxbuf {
struct mbuf *rb_mbuf;
bus_dmamap_t rb_dmap;
};
struct et_txstatus_data {
uint32_t *txsd_status;
bus_addr_t txsd_paddr;
bus_dma_tag_t txsd_dtag;
bus_dmamap_t txsd_dmap;
};
struct et_rxstatus_data {
struct et_rxstatus *rxsd_status;
bus_addr_t rxsd_paddr;
bus_dma_tag_t rxsd_dtag;
bus_dmamap_t rxsd_dmap;
};
struct et_rxstat_ring {
struct et_rxstat *rsr_stat;
bus_addr_t rsr_paddr;
bus_dma_tag_t rsr_dtag;
bus_dmamap_t rsr_dmap;
int rsr_index;
int rsr_wrap;
};
struct et_txdesc_ring {
struct et_txdesc *tr_desc;
bus_addr_t tr_paddr;
bus_dma_tag_t tr_dtag;
bus_dmamap_t tr_dmap;
int tr_ready_index;
int tr_ready_wrap;
};
struct et_rxdesc_ring {
struct et_rxdesc *rr_desc;
bus_addr_t rr_paddr;
bus_dma_tag_t rr_dtag;
bus_dmamap_t rr_dmap;
uint32_t rr_posreg;
int rr_index;
int rr_wrap;
};
struct et_txbuf_data {
struct et_txbuf tbd_buf[ET_TX_NDESC];
int tbd_start_index;
int tbd_start_wrap;
int tbd_used;
};
struct et_softc;
struct et_rxbuf_data;
struct et_rxbuf_data {
struct et_rxbuf rbd_buf[ET_RX_NDESC];
struct et_softc *rbd_softc;
struct et_rxdesc_ring *rbd_ring;
int rbd_bufsize;
int (*rbd_newbuf)(struct et_rxbuf_data *, int);
void (*rbd_discard)(struct et_rxbuf_data *, int);
};
struct et_hw_stats {
/* RX/TX stats. */
uint64_t pkts_64;
uint64_t pkts_65;
uint64_t pkts_128;
uint64_t pkts_256;
uint64_t pkts_512;
uint64_t pkts_1024;
uint64_t pkts_1519;
/* RX stats. */
uint64_t rx_bytes;
uint64_t rx_frames;
uint32_t rx_crcerrs;
uint64_t rx_mcast;
uint64_t rx_bcast;
uint32_t rx_control;
uint32_t rx_pause;
uint32_t rx_unknown_control;
uint32_t rx_alignerrs;
uint32_t rx_lenerrs;
uint32_t rx_codeerrs;
uint32_t rx_cserrs;
uint32_t rx_runts;
uint64_t rx_oversize;
uint32_t rx_fragments;
uint32_t rx_jabbers;
uint32_t rx_drop;
/* TX stats. */
uint64_t tx_bytes;
uint64_t tx_frames;
uint64_t tx_mcast;
uint64_t tx_bcast;
uint32_t tx_pause;
uint32_t tx_deferred;
uint32_t tx_excess_deferred;
uint32_t tx_single_colls;
uint32_t tx_multi_colls;
uint32_t tx_late_colls;
uint32_t tx_excess_colls;
uint32_t tx_total_colls;
uint32_t tx_pause_honored;
uint32_t tx_drop;
uint32_t tx_jabbers;
uint32_t tx_crcerrs;
uint32_t tx_control;
uint64_t tx_oversize;
uint32_t tx_undersize;
uint32_t tx_fragments;
};
struct et_softc {
struct ifnet *ifp;
device_t dev;
struct mtx sc_mtx;
device_t sc_miibus;
void *sc_irq_handle;
struct resource *sc_irq_res;
struct resource *sc_mem_res;
int sc_if_flags;
uint32_t sc_flags; /* ET_FLAG_ */
int sc_expcap;
int sc_mem_rid;
int sc_irq_rid;
struct callout sc_tick;
int watchdog_timer;
bus_dma_tag_t sc_dtag;
struct et_rxdesc_ring sc_rx_ring[ET_RX_NRING];
struct et_rxstat_ring sc_rxstat_ring;
struct et_rxstatus_data sc_rx_status;
struct et_txdesc_ring sc_tx_ring;
struct et_txstatus_data sc_tx_status;
bus_dma_tag_t sc_mbuf_dtag;
bus_dma_tag_t sc_rx_mini_tag;
bus_dmamap_t sc_rx_mini_sparemap;
bus_dma_tag_t sc_rx_tag;
bus_dmamap_t sc_rx_sparemap;
bus_dma_tag_t sc_tx_tag;
struct et_rxbuf_data sc_rx_data[ET_RX_NRING];
struct et_txbuf_data sc_tx_data;
struct et_hw_stats sc_stats;
uint32_t sc_tx;
uint32_t sc_tx_intr;
/*
* Sysctl variables
*/
int sc_rx_intr_npkts;
int sc_rx_intr_delay;
int sc_tx_intr_nsegs;
uint32_t sc_timer;
};
#define ET_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
#define ET_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
#define ET_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->sc_mtx, MA_OWNED)
#define ET_FLAG_PCIE 0x0001
#define ET_FLAG_MSI 0x0002
#define ET_FLAG_FASTETHER 0x0004
#define ET_FLAG_TXRX_ENABLED 0x0100
#define ET_FLAG_JUMBO 0x0200
#define ET_FLAG_LINK 0x8000
#endif /* !_IF_ETVAR_H */
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