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freebsd-skq/sys/dev/rt/if_rtvar.h
Stanislav Galabov 5ce34567e6 This revision adds support to if_rt for more SoCs. 
The SoCs I've tried the driver with include the following:
RT3050, RT5350, RT3662, RT3883, MT7620, MT7621, MT7688.
On boards, based on the above SoCs traffic is passing through correctly
and the boards survive a flood ping with very little or no drops (drops
may be caused elsewhere in my test setup, however).

One issue still remains and needs to be fixed in the future: if_rt does
not survive an ifconfig rt0 down/ifconfig rt0 up cycle.
This issue existed before this commit as well, however.

Reviewed by:	ray
Approved by:	adrian (mentor)
Sponsored by:	Smartcom - Bulgaria AD
Differential Revision:	https://reviews.freebsd.org/D5864
2016-04-07 07:22:22 +00:00

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/*-
* Copyright (c) 2010-2011 Aleksandr Rybalko <ray@ddteam.net>
* Copyright (c) 2009-2010 Alexander Egorenkov <egorenar@gmail.com>
* Copyright (c) 2009 Damien Bergamini <damien.bergamini@free.fr>
*
* 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 unmodified, 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef _IF_RTVAR_H_
#define _IF_RTVAR_H_
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/taskqueue.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include "opt_if_rt.h"
#define RT_SOFTC_LOCK(sc) mtx_lock(&(sc)->lock)
#define RT_SOFTC_UNLOCK(sc) mtx_unlock(&(sc)->lock)
#define RT_SOFTC_ASSERT_LOCKED(sc) mtx_assert(&(sc)->lock, MA_OWNED)
#define RT_SOFTC_TX_RING_LOCK(ring) mtx_lock(&(ring)->lock)
#define RT_SOFTC_TX_RING_UNLOCK(ring) mtx_unlock(&(ring)->lock)
#define RT_SOFTC_TX_RING_ASSERT_LOCKED(ring) \
mtx_assert(&(ring)->lock, MA_OWNED)
#define RT_SOFTC_TX_RING_COUNT 4
#define RT_SOFTC_RX_RING_COUNT 4
#ifndef IF_RT_RING_DATA_COUNT
#define IF_RT_RING_DATA_COUNT 128
#endif
#define RT_SOFTC_RX_RING_DATA_COUNT IF_RT_RING_DATA_COUNT
#define RT_SOFTC_MAX_SCATTER 10
#define RT_SOFTC_TX_RING_DATA_COUNT (IF_RT_RING_DATA_COUNT/4)
#define RT_SOFTC_TX_RING_DESC_COUNT \
(RT_SOFTC_TX_RING_DATA_COUNT * RT_SOFTC_MAX_SCATTER)
#define RT_TXDESC_SDL1_BURST (1 << 15)
#define RT_TXDESC_SDL1_LASTSEG (1 << 14)
#define RT_TXDESC_SDL0_DDONE (1 << 15)
#define RT_TXDESC_SDL0_LASTSEG (1 << 14)
struct rt_txdesc
{
uint32_t sdp0;
uint16_t sdl1;
uint16_t sdl0;
uint32_t sdp1;
uint8_t vid;
#define TXDSCR_INS_VLAN_TAG 0x80
#define TXDSCR_VLAN_PRIO_MASK 0x70
#define TXDSCR_VLAN_IDX_MASK 0x0f
uint8_t pppoe;
#define TXDSCR_USR_DEF_FLD 0x80
#define TXDSCR_INS_PPPOE_HDR 0x10
#define TXDSCR_PPPOE_SID_MASK 0x0f
uint8_t qn;
#define TXDSCR_QUEUE_MASK 0x07
uint8_t dst;
#define TXDSCR_IP_CSUM_GEN 0x80
#define TXDSCR_UDP_CSUM_GEN 0x40
#define TXDSCR_TCP_CSUM_GEN 0x20
#define TXDSCR_DST_PORT_MASK 0x07
#define TXDSCR_DST_PORT_CPU 0x00
#define TXDSCR_DST_PORT_GDMA1 0x01
#define TXDSCR_DST_PORT_GDMA2 0x02
#define TXDSCR_DST_PORT_PPE 0x06
#define TXDSCR_DST_PORT_DISC 0x07
} __packed;
#define RT_RXDESC_SDL0_DDONE (1 << 15)
#define RT305X_RXD_SRC_L4_CSUM_FAIL (1 << 28)
#define RT305X_RXD_SRC_IP_CSUM_FAIL (1 << 29)
#define MT7620_RXD_SRC_L4_CSUM_FAIL (1 << 22)
#define MT7620_RXD_SRC_IP_CSUM_FAIL (1 << 25)
#define MT7621_RXD_SRC_L4_CSUM_FAIL (1 << 23)
#define MT7621_RXD_SRC_IP_CSUM_FAIL (1 << 26)
struct rt_rxdesc
{
uint32_t sdp0;
uint16_t sdl1;
uint16_t sdl0;
uint32_t sdp1;
#if 0
uint16_t foe;
#define RXDSXR_FOE_ENTRY_VALID 0x40
#define RXDSXR_FOE_ENTRY_MASK 0x3f
uint8_t ai;
#define RXDSXR_AI_COU_REASON 0xff
#define RXDSXR_AI_PARSER_RSLT_MASK 0xff
uint8_t src;
#define RXDSXR_SRC_IPFVLD 0x80
#define RXDSXR_SRC_L4FVLD 0x40
#define RXDSXR_SRC_IP_CSUM_FAIL 0x20
#define RXDSXR_SRC_L4_CSUM_FAIL 0x10
#define RXDSXR_SRC_AIS 0x08
#define RXDSXR_SRC_PORT_MASK 0x07
#endif
uint32_t word3;
} __packed;
struct rt_softc_rx_data
{
bus_dmamap_t dma_map;
struct mbuf *m;
};
struct rt_softc_rx_ring
{
bus_dma_tag_t desc_dma_tag;
bus_dmamap_t desc_dma_map;
bus_addr_t desc_phys_addr;
struct rt_rxdesc *desc;
bus_dma_tag_t data_dma_tag;
bus_dmamap_t spare_dma_map;
struct rt_softc_rx_data data[RT_SOFTC_RX_RING_DATA_COUNT];
int cur;
int qid;
};
struct rt_softc_tx_data
{
bus_dmamap_t dma_map;
struct mbuf *m;
};
struct rt_softc_tx_ring
{
struct mtx lock;
bus_dma_tag_t desc_dma_tag;
bus_dmamap_t desc_dma_map;
bus_addr_t desc_phys_addr;
struct rt_txdesc *desc;
int desc_queued;
int desc_cur;
int desc_next;
bus_dma_tag_t seg0_dma_tag;
bus_dmamap_t seg0_dma_map;
bus_addr_t seg0_phys_addr;
uint8_t *seg0;
bus_dma_tag_t data_dma_tag;
struct rt_softc_tx_data data[RT_SOFTC_TX_RING_DATA_COUNT];
int data_queued;
int data_cur;
int data_next;
int qid;
};
struct rt_softc
{
device_t dev;
struct mtx lock;
uint32_t flags;
int mem_rid;
struct resource *mem;
int irq_rid;
struct resource *irq;
void *irqh;
bus_space_tag_t bst;
bus_space_handle_t bsh;
struct ifnet *ifp;
int if_flags;
struct ifmedia rt_ifmedia;
uint32_t mac_rev;
uint8_t mac_addr[ETHER_ADDR_LEN];
device_t rt_miibus;
uint32_t intr_enable_mask;
uint32_t intr_disable_mask;
uint32_t intr_pending_mask;
struct task rx_done_task;
int rx_process_limit;
struct task tx_done_task;
struct task periodic_task;
struct callout periodic_ch;
unsigned long periodic_round;
struct taskqueue *taskqueue;
struct rt_softc_rx_ring rx_ring[RT_SOFTC_RX_RING_COUNT];
struct rt_softc_tx_ring tx_ring[RT_SOFTC_TX_RING_COUNT];
int tx_ring_mgtqid;
struct callout tx_watchdog_ch;
int tx_timer;
/* statistic counters */
unsigned long interrupts;
unsigned long tx_coherent_interrupts;
unsigned long rx_coherent_interrupts;
unsigned long rx_interrupts[RT_SOFTC_RX_RING_COUNT];
unsigned long rx_delay_interrupts;
unsigned long tx_interrupts[RT_SOFTC_TX_RING_COUNT];
unsigned long tx_delay_interrupts;
unsigned long tx_data_queue_full[RT_SOFTC_TX_RING_COUNT];
unsigned long tx_watchdog_timeouts;
unsigned long tx_defrag_packets;
unsigned long no_tx_desc_avail;
unsigned long rx_mbuf_alloc_errors;
unsigned long rx_mbuf_dmamap_errors;
unsigned long tx_queue_not_empty[2];
unsigned long rx_bytes;
unsigned long rx_packets;
unsigned long rx_crc_err;
unsigned long rx_phy_err;
unsigned long rx_dup_packets;
unsigned long rx_fifo_overflows;
unsigned long rx_short_err;
unsigned long rx_long_err;
unsigned long tx_bytes;
unsigned long tx_packets;
unsigned long tx_skip;
unsigned long tx_collision;
int phy_addr;
#ifdef IF_RT_DEBUG
int debug;
#endif
uint32_t rt_chipid;
/* chip specific registers config */
int rx_ring_count;
uint32_t csum_fail_l4;
uint32_t csum_fail_ip;
uint32_t int_rx_done_mask;
uint32_t int_tx_done_mask;
uint32_t delay_int_cfg;
uint32_t fe_int_status;
uint32_t fe_int_enable;
uint32_t pdma_glo_cfg;
uint32_t pdma_rst_idx;
uint32_t tx_base_ptr[RT_SOFTC_TX_RING_COUNT];
uint32_t tx_max_cnt[RT_SOFTC_TX_RING_COUNT];
uint32_t tx_ctx_idx[RT_SOFTC_TX_RING_COUNT];
uint32_t tx_dtx_idx[RT_SOFTC_TX_RING_COUNT];
uint32_t rx_base_ptr[RT_SOFTC_RX_RING_COUNT];
uint32_t rx_max_cnt[RT_SOFTC_RX_RING_COUNT];
uint32_t rx_calc_idx[RT_SOFTC_RX_RING_COUNT];
uint32_t rx_drx_idx[RT_SOFTC_RX_RING_COUNT];
};
#ifdef IF_RT_DEBUG
enum
{
RT_DEBUG_RX = 0x00000001,
RT_DEBUG_TX = 0x00000002,
RT_DEBUG_INTR = 0x00000004,
RT_DEBUG_STATE = 0x00000008,
RT_DEBUG_STATS = 0x00000010,
RT_DEBUG_PERIODIC = 0x00000020,
RT_DEBUG_WATCHDOG = 0x00000040,
RT_DEBUG_ANY = 0xffffffff
};
#define RT_DPRINTF(sc, m, fmt, ...) \
do { if ((sc)->debug & (m)) \
device_printf(sc->dev, fmt, ## __VA_ARGS__); } while (0)
#else
#define RT_DPRINTF(sc, m, fmt, ...)
#endif /* #ifdef IF_RT_DEBUG */
#endif /* #ifndef _IF_RTVAR_H_ */
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