git: bf8984881129 - main - netfpga10: mips only, remove
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Date: Fri, 31 Dec 2021 22:10:16 UTC
The branch main has been updated by imp:
URL: https://cgit.FreeBSD.org/src/commit/?id=bf898488112963bfbe955295ecca53529c0f49b6
commit bf898488112963bfbe955295ecca53529c0f49b6
Author: Warner Losh <imp@FreeBSD.org>
AuthorDate: 2021-12-31 22:06:56 +0000
Commit: Warner Losh <imp@FreeBSD.org>
CommitDate: 2021-12-31 22:09:46 +0000
netfpga10: mips only, remove
Sponsored by: Netflix
---
sys/dev/netfpga10g/nf10bmac/if_nf10bmac.c | 970 --------------------------
sys/dev/netfpga10g/nf10bmac/if_nf10bmac_fdt.c | 203 ------
sys/dev/netfpga10g/nf10bmac/if_nf10bmacreg.h | 72 --
sys/modules/netfpga10g/Makefile | 12 -
sys/modules/netfpga10g/nf10bmac/Makefile | 15 -
5 files changed, 1272 deletions(-)
diff --git a/sys/dev/netfpga10g/nf10bmac/if_nf10bmac.c b/sys/dev/netfpga10g/nf10bmac/if_nf10bmac.c
deleted file mode 100644
index 565a5f608c0e..000000000000
--- a/sys/dev/netfpga10g/nf10bmac/if_nf10bmac.c
+++ /dev/null
@@ -1,970 +0,0 @@
-/*-
- * Copyright (c) 2012-2014 Bjoern A. Zeeb
- * All rights reserved.
- *
- * This software was developed by SRI International and the University of
- * Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-11-C-0249
- * ("MRC2"), as part of the DARPA MRC research programme.
- *
- * 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.
- *
- * 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.
- *
- * This driver is modelled after atse(4). We need to seriously reduce the
- * per-driver code we have to write^wcopy & paste.
- *
- * TODO:
- * - figure out on the HW side why some data is LE and some is BE.
- * - general set of improvements possible (e.g., reduce times of copying,
- * do on-the-copy checksum calculations)
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "opt_device_polling.h"
-#include "opt_netfpga.h"
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/bus.h>
-#include <sys/endian.h>
-#include <sys/lock.h>
-#include <sys/module.h>
-#include <sys/mutex.h>
-#include <sys/proc.h>
-#include <sys/socket.h>
-#include <sys/sockio.h>
-#include <sys/types.h>
-
-#include <net/ethernet.h>
-#include <net/if.h>
-#include <net/if_var.h>
-#include <net/if_dl.h>
-#include <net/if_media.h>
-#include <net/if_types.h>
-#include <net/if_vlan_var.h>
-
-#include <net/bpf.h>
-
-#include <machine/bus.h>
-#include <machine/resource.h>
-#include <sys/rman.h>
-
-#include "if_nf10bmacreg.h"
-
-#ifndef NF10BMAC_MAX_PKTS
-/*
- * We have a 4k buffer in HW, so do not try to send more than 3 packets.
- * At the time of writing HW is orders of magnitude faster than we can
- * enqueue so it would not matter but need an escape.
- */
-#define NF10BMAC_MAX_PKTS 3
-#endif
-
-#ifndef NF10BMAC_WATCHDOG_TIME
-#define NF10BMAC_WATCHDOG_TIME 5 /* seconds */
-#endif
-
-#ifdef DEVICE_POLLING
-static poll_handler_t nf10bmac_poll;
-#endif
-
-#define NF10BMAC_LOCK(_sc) mtx_lock(&(_sc)->nf10bmac_mtx)
-#define NF10BMAC_UNLOCK(_sc) mtx_unlock(&(_sc)->nf10bmac_mtx)
-#define NF10BMAC_LOCK_ASSERT(_sc) \
- mtx_assert(&(_sc)->nf10bmac_mtx, MA_OWNED)
-
-#define NF10BMAC_CTRL0 0x00
-#define NF10BMAC_TX_DATA 0x00
-#define NF10BMAC_TX_META 0x08
-#define NF10BMAC_TX_LEN 0x10
-#define NF10BMAC_RX_DATA 0x00
-#define NF10BMAC_RX_META 0x08
-#define NF10BMAC_RX_LEN 0x10
-#define NF10BMAC_INTR_CLEAR_DIS 0x00
-#define NF10BMAC_INTR_CTRL 0x08
-
-#define NF10BMAC_TUSER_MAC0 (1 << 0)
-#define NF10BMAC_TUSER_CPU0 (1 << 1)
-#define NF10BMAC_TUSER_MAC1 (1 << 2)
-#define NF10BMAC_TUSER_CPU1 (1 << 3)
-#define NF10BMAC_TUSER_MAC2 (1 << 4)
-#define NF10BMAC_TUSER_CPU2 (1 << 5)
-#define NF10BMAC_TUSER_MAC3 (1 << 6)
-#define NF10BMAC_TUSER_CPU3 (1 << 7)
-
-#define NF10BMAC_DATA_LEN_MASK 0x0000ffff
-#define NF10BMAC_DATA_DPORT_MASK 0xff000000
-#define NF10BMAC_DATA_DPORT_SHIFT 24
-#define NF10BMAC_DATA_SPORT_MASK 0x00ff0000
-#define NF10BMAC_DATA_SPORT_SHIFT 16
-#define NF10BMAC_DATA_LAST 0x00008000
-#ifdef NF10BMAC_64BIT
-#define NF10BMAC_DATA_STRB 0x000000ff
-#define REGWTYPE uint64_t
-#else
-#define NF10BMAC_DATA_STRB 0x0000000f
-#define REGWTYPE uint32_t
-#endif
-
-
-static inline void
-nf10bmac_write(struct resource *res, REGWTYPE reg, REGWTYPE val,
- const char *f __unused, const int l __unused)
-{
-
-#ifdef NF10BMAC_64BIT
- bus_write_8(res, reg, htole64(val));
-#else
- bus_write_4(res, reg, htole32(val));
-#endif
-}
-
-static inline REGWTYPE
-nf10bmac_read(struct resource *res, REGWTYPE reg,
- const char *f __unused, const int l __unused)
-{
-
-#ifdef NF10BMAC_64BIT
- return (le64toh(bus_read_8(res, reg)));
-#else
- return (le32toh(bus_read_4(res, reg)));
-#endif
-}
-
-static inline void
-nf10bmac_write_be(struct resource *res, REGWTYPE reg, REGWTYPE val,
- const char *f __unused, const int l __unused)
-{
-
-#ifdef NF10BMAC_64BIT
- bus_write_8(res, reg, htobe64(val));
-#else
- bus_write_4(res, reg, htobe32(val));
-#endif
-}
-
-
-static inline REGWTYPE
-nf10bmac_read_be(struct resource *res, REGWTYPE reg,
- const char *f __unused, const int l __unused)
-{
-
-#ifdef NF10BMAC_64BIT
- return (be64toh(bus_read_8(res, reg)));
-#else
- return (be32toh(bus_read_4(res, reg)));
-#endif
-}
-
-#define NF10BMAC_WRITE_CTRL(sc, reg, val) \
- nf10bmac_write((sc)->nf10bmac_ctrl_res, (reg), (val), \
- __func__, __LINE__)
-#define NF10BMAC_WRITE(sc, reg, val) \
- nf10bmac_write((sc)->nf10bmac_tx_mem_res, (reg), (val), \
- __func__, __LINE__)
-#define NF10BMAC_READ(sc, reg) \
- nf10bmac_read((sc)->nf10bmac_rx_mem_res, (reg), \
- __func__, __LINE__)
-#define NF10BMAC_WRITE_BE(sc, reg, val) \
- nf10bmac_write_be((sc)->nf10bmac_tx_mem_res, (reg), (val), \
- __func__, __LINE__)
-#define NF10BMAC_READ_BE(sc, reg) \
- nf10bmac_read_be((sc)->nf10bmac_rx_mem_res, (reg), \
- __func__, __LINE__)
-
-#define NF10BMAC_WRITE_INTR(sc, reg, val, _f, _l) \
- nf10bmac_write((sc)->nf10bmac_intr_res, (reg), (val), \
- (_f), (_l))
-
-#define NF10BMAC_RX_INTR_CLEAR_DIS(sc) \
- NF10BMAC_WRITE_INTR((sc), NF10BMAC_INTR_CLEAR_DIS, 1, \
- __func__, __LINE__)
-#define NF10BMAC_RX_INTR_ENABLE(sc) \
- NF10BMAC_WRITE_INTR((sc), NF10BMAC_INTR_CTRL, 1, \
- __func__, __LINE__)
-#define NF10BMAC_RX_INTR_DISABLE(sc) \
- NF10BMAC_WRITE_INTR((sc), NF10BMAC_INTR_CTRL, 0, \
- __func__, __LINE__)
-
-
-#ifdef ENABLE_WATCHDOG
-static void nf10bmac_tick(void *);
-#endif
-static int nf10bmac_detach(device_t);
-
-devclass_t nf10bmac_devclass;
-
-
-static int
-nf10bmac_tx_locked(struct nf10bmac_softc *sc, struct mbuf *m)
-{
- int32_t len, l, ml;
- REGWTYPE md, val;
-
- NF10BMAC_LOCK_ASSERT(sc);
-
- KASSERT(m != NULL, ("%s: m is null: sc=%p", __func__, sc));
- KASSERT(m->m_flags & M_PKTHDR, ("%s: not a pkthdr: m=%p", __func__, m));
- /*
- * Copy to buffer to minimize our pain as we can only store
- * double words which, after the first mbuf gets out of alignment
- * quite quickly.
- */
- m_copydata(m, 0, m->m_pkthdr.len, sc->nf10bmac_tx_buf);
- len = m->m_pkthdr.len;
-
- /* Write the length at start of packet. */
- NF10BMAC_WRITE(sc, NF10BMAC_TX_LEN, len);
-
- /* Write the meta data and data. */
- ml = len / sizeof(val);
- len -= (ml * sizeof(val));
- for (l = 0; l <= ml; l++) {
- int32_t cl;
-
- cl = sizeof(val);
- md = (NF10BMAC_TUSER_CPU0 << NF10BMAC_DATA_SPORT_SHIFT);
- if (l == ml || (len == 0 && l == (ml - 1))) {
- if (l == ml && len == 0) {
- break;
- } else {
- uint8_t s;
- int sl;
-
- if (l == (ml - 1))
- len = sizeof(val);
- cl = len;
-
- for (s = 0, sl = len; sl > 0; sl--)
- s |= (1 << (sl - 1));
- md |= (s & NF10BMAC_DATA_STRB);
- md |= NF10BMAC_DATA_LAST;
- }
- } else {
- md |= NF10BMAC_DATA_STRB;
- }
- NF10BMAC_WRITE(sc, NF10BMAC_TX_META, md);
- bcopy(&sc->nf10bmac_tx_buf[l*sizeof(val)], &val, cl);
- NF10BMAC_WRITE_BE(sc, NF10BMAC_TX_DATA, val);
- }
-
- /* If anyone is interested give them a copy. */
- BPF_MTAP(sc->nf10bmac_ifp, m);
-
- m_freem(m);
-
- return (0);
-}
-
-static void
-nf10bmac_start_locked(struct ifnet *ifp)
-{
- struct nf10bmac_softc *sc;
- int count, error;
-
- sc = ifp->if_softc;
- NF10BMAC_LOCK_ASSERT(sc);
-
- if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
- IFF_DRV_RUNNING || (sc->nf10bmac_flags & NF10BMAC_FLAGS_LINK) == 0)
- return;
-
-#ifdef ENABLE_WATCHDOG
- /*
- * Disable the watchdog while sending, we are batching packets.
- * Though we should never reach 5 seconds, and are holding the lock,
- * but who knows.
- */
- sc->nf10bmac_watchdog_timer = 0;
-#endif
-
- /* Send up to MAX_PKTS_PER_TX_LOOP packets. */
- for (count = 0; !IFQ_DRV_IS_EMPTY(&ifp->if_snd) &&
- count < NF10BMAC_MAX_PKTS; count++) {
- struct mbuf *m;
-
- IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
- if (m == NULL)
- break;
- error = nf10bmac_tx_locked(sc, m);
- if (error != 0)
- break;
- }
-
-#ifdef ENABLE_WATCHDOG
-done:
- /* If the IP core walks into Nekromanteion try to bail out. */
- /* XXX-BZ useless until we have direct FIFO fill status feedback. */
- if (count > 0)
- sc->nf10bmac_watchdog_timer = NF10BMAC_WATCHDOG_TIME;
-#endif
-}
-
-static void
-nf10bmac_start(struct ifnet *ifp)
-{
- struct nf10bmac_softc *sc;
-
- sc = ifp->if_softc;
- NF10BMAC_LOCK(sc);
- nf10bmac_start_locked(ifp);
- NF10BMAC_UNLOCK(sc);
-}
-
-static void
-nf10bmac_eat_packet_munch_munch(struct nf10bmac_softc *sc)
-{
- REGWTYPE md, val;
-
- do {
- md = NF10BMAC_READ_BE(sc, NF10BMAC_RX_META);
- if ((md & NF10BMAC_DATA_STRB) != 0)
- val = NF10BMAC_READ_BE(sc, NF10BMAC_RX_DATA);
- } while ((md & NF10BMAC_DATA_STRB) != 0 &&
- (md & NF10BMAC_DATA_LAST) == 0);
-}
-
-static int
-nf10bmac_rx_locked(struct nf10bmac_softc *sc)
-{
- struct ifnet *ifp;
- struct mbuf *m;
- REGWTYPE md, val;
- int32_t len, l;
-
- /*
- * General problem here in case we need to sync ourselves to the
- * beginning of a packet. Length will only be set for the first
- * read, and together with strb we can detect the beginning (or
- * skip to tlast).
- */
-
- len = NF10BMAC_READ(sc, NF10BMAC_RX_LEN) & NF10BMAC_DATA_LEN_MASK;
- if (len > (MCLBYTES - ETHER_ALIGN)) {
- nf10bmac_eat_packet_munch_munch(sc);
- return (0);
- }
-
- md = NF10BMAC_READ(sc, NF10BMAC_RX_META);
- if (len == 0 && (md & NF10BMAC_DATA_STRB) == 0) {
- /* No packet data available. */
- return (0);
- } else if (len == 0 && (md & NF10BMAC_DATA_STRB) != 0) {
- /* We are in the middle of a packet. */
- nf10bmac_eat_packet_munch_munch(sc);
- return (0);
- } else if ((md & NF10BMAC_DATA_STRB) == 0) {
- /* Invalid length "hint". */
- device_printf(sc->nf10bmac_dev,
- "Unexpected length %d on zero strb\n", len);
- return (0);
- }
-
- /* Assume at this point that we have data and a full packet. */
- if ((len + ETHER_ALIGN) >= MINCLSIZE) {
- /* Get a cluster. */
- m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
- if (m == NULL)
- return (0);
- m->m_len = m->m_pkthdr.len = MCLBYTES;
- } else {
- /* Hey this still fits into the mbuf+pkthdr. */
- m = m_gethdr(M_NOWAIT, MT_DATA);
- if (m == NULL)
- return (0);
- m->m_len = m->m_pkthdr.len = MHLEN;
- }
- /* Make sure upper layers will be aligned. */
- m_adj(m, ETHER_ALIGN);
-
- ifp = sc->nf10bmac_ifp;
- l = 0;
-/*
- while ((md & NF10BMAC_DATA_STRB) != 0 && l < len) {
-*/
- while (l < len) {
- size_t cl;
-
- if ((md & NF10BMAC_DATA_LAST) == 0 &&
- (len - l) < sizeof(val)) {
- /*
- * Our length and LAST disagree. We have a valid STRB.
- * We could continue until we fill the mbuf and just
- * log the invlid length "hint". For now drop the
- * packet on the floor and count the error.
- */
- nf10bmac_eat_packet_munch_munch(sc);
- if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
- m_freem(m);
- return (0);
- } else if ((len - l) <= sizeof(val)) {
- cl = len - l;
- } else {
- cl = sizeof(val);
- }
-
- /* Read the first bytes of data as well. */
- val = NF10BMAC_READ_BE(sc, NF10BMAC_RX_DATA);
- bcopy(&val, (uint8_t *)(m->m_data + l), cl);
- l += cl;
-
- if ((md & NF10BMAC_DATA_LAST) != 0 || l >= len)
- break;
- else {
- DELAY(50);
- md = NF10BMAC_READ(sc, NF10BMAC_RX_META);
- }
-
- cl = 10;
- while ((md & NF10BMAC_DATA_STRB) == 0 && cl-- > 0) {
- DELAY(10);
- md = NF10BMAC_READ(sc, NF10BMAC_RX_META);
- }
- }
- /* We should get out of this loop with tlast and tsrb. */
- if ((md & NF10BMAC_DATA_LAST) == 0 || (md & NF10BMAC_DATA_STRB) == 0) {
- device_printf(sc->nf10bmac_dev, "Unexpected rx loop end state: "
- "md=0x%08jx len=%d l=%d\n", (uintmax_t)md, len, l);
- if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
- m_freem(m);
- return (0);
- }
-
- m->m_pkthdr.len = m->m_len = len;
- m->m_pkthdr.rcvif = ifp;
- if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
-
- NF10BMAC_UNLOCK(sc);
- (*ifp->if_input)(ifp, m);
- NF10BMAC_LOCK(sc);
-
- return (1);
-}
-
-
-static int
-nf10bmac_stop_locked(struct nf10bmac_softc *sc)
-{
- struct ifnet *ifp;
-
- NF10BMAC_LOCK_ASSERT(sc);
-
-#ifdef ENABLE_WATCHDOG
- sc->nf10bmac_watchdog_timer = 0;
- callout_stop(&sc->nf10bmac_tick);
-#endif
-
- ifp = sc->nf10bmac_ifp;
- ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
- NF10BMAC_RX_INTR_CLEAR_DIS(sc);
-
- sc->nf10bmac_flags &= ~NF10BMAC_FLAGS_LINK;
- if_link_state_change(ifp, LINK_STATE_DOWN);
-
- return (0);
-}
-
-static int
-nf10bmac_reset(struct nf10bmac_softc *sc)
-{
-
- /*
- * If we do not have an ether address set, initialize to the same
- * OUI as NetFPGA-10G Linux driver does (which luckily seems
- * unallocated). We just change the NIC specific part from
- * the slightly long "\0NF10C0" to "\0NFBSD".
- * Oh and we keep the way of setting it from a string as they do.
- * It's an amazing way to hide it.
- * XXX-BZ If NetFPGA gets their own OUI we should fix this.
- */
- if (sc->nf10bmac_eth_addr[0] == 0x00 &&
- sc->nf10bmac_eth_addr[1] == 0x00 &&
- sc->nf10bmac_eth_addr[2] == 0x00 &&
- sc->nf10bmac_eth_addr[3] == 0x00 &&
- sc->nf10bmac_eth_addr[4] == 0x00 &&
- sc->nf10bmac_eth_addr[5] == 0x00) {
- memcpy(&sc->nf10bmac_eth_addr, "\0NFBSD", ETHER_ADDR_LEN);
- sc->nf10bmac_eth_addr[5] += sc->nf10bmac_unit;
- }
-
- return (0);
-}
-
-static void
-nf10bmac_init_locked(struct nf10bmac_softc *sc)
-{
- struct ifnet *ifp;
- uint8_t *eaddr;
-
- NF10BMAC_LOCK_ASSERT(sc);
- ifp = sc->nf10bmac_ifp;
-
- if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
- return;
-
- /*
- * Must update the ether address if changed. Given we do not handle
- * in nf10bmac_ioctl() but it's in the general framework, just always
- * do it here before nf10bmac_reset().
- */
- eaddr = IF_LLADDR(sc->nf10bmac_ifp);
- bcopy(eaddr, &sc->nf10bmac_eth_addr, ETHER_ADDR_LEN);
- /* XXX-BZ we do not have any way to tell the NIC our ether address. */
-
- /* Make things frind to halt, cleanup, ... */
- nf10bmac_stop_locked(sc);
- /* ... reset, ... */
- nf10bmac_reset(sc);
-
- /* Memory rings? DMA engine? MC filter? MII? */
- /* Instead drain the FIFO; or at least a possible first packet.. */
- nf10bmac_eat_packet_munch_munch(sc);
-
-#ifdef DEVICE_POLLING
- /* Only enable interrupts if we are not polling. */
- if (ifp->if_capenable & IFCAP_POLLING) {
- NF10BMAC_RX_INTR_CLEAR_DIS(sc);
- } else
-#endif
- {
- NF10BMAC_RX_INTR_ENABLE(sc);
- }
-
- ifp->if_drv_flags |= IFF_DRV_RUNNING;
- ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
-
- /* We have no underlying media, fake link state. */
- sc->nf10bmac_flags = NF10BMAC_FLAGS_LINK; /* Always up. */
- if_link_state_change(sc->nf10bmac_ifp, LINK_STATE_UP);
-
-#ifdef ENABLE_WATCHDOG
- callout_reset(&sc->nf10bmac_tick, hz, nf10bmac_tick, sc);
-#endif
-}
-
-static void
-nf10bmac_init(void *xsc)
-{
- struct nf10bmac_softc *sc;
-
- sc = (struct nf10bmac_softc *)xsc;
- NF10BMAC_LOCK(sc);
- nf10bmac_init_locked(sc);
- NF10BMAC_UNLOCK(sc);
-}
-
-#ifdef ENABLE_WATCHDOG
-static void
-nf10bmac_watchdog(struct nf10bmac_softc *sc)
-{
-
- NF10BMAC_LOCK_ASSERT(sc);
-
- if (sc->nf10bmac_watchdog_timer == 0 || --sc->nf10bmac_watchdog_timer > 0)
- return;
-
- device_printf(sc->nf10bmac_dev, "watchdog timeout\n");
- sc->nf10if_inc_counter(bmac_ifp, IFCOUNTER_OERRORS, 1);
-
- sc->nf10bmac_ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
- nf10bmac_init_locked(sc);
-
- if (!IFQ_DRV_IS_EMPTY(&sc->nf10bmac_ifp->if_snd))
- nf10bmac_start_locked(sc->nf10bmac_ifp);
-}
-
-static void
-nf10bmac_tick(void *xsc)
-{
- struct nf10bmac_softc *sc;
- struct ifnet *ifp;
-
- sc = (struct nf10bmac_softc *)xsc;
- NF10BMAC_LOCK_ASSERT(sc);
- ifp = sc->nf10bmac_ifp;
-
- nf10bmac_watchdog(sc);
- callout_reset(&sc->nf10bmac_tick, hz, nf10bmac_tick, sc);
-}
-#endif
-
-static void
-nf10bmac_intr(void *arg)
-{
- struct nf10bmac_softc *sc;
- struct ifnet *ifp;
- int rx_npkts;
-
- sc = (struct nf10bmac_softc *)arg;
- ifp = sc->nf10bmac_ifp;
-
- NF10BMAC_LOCK(sc);
-#ifdef DEVICE_POLLING
- if (ifp->if_capenable & IFCAP_POLLING) {
- NF10BMAC_UNLOCK(sc);
- return;
- }
-#endif
-
- /* NF10BMAC_RX_INTR_DISABLE(sc); */
- NF10BMAC_RX_INTR_CLEAR_DIS(sc);
-
- /* We only have an RX interrupt and no status information. */
- rx_npkts = 0;
- while (rx_npkts < NF10BMAC_MAX_PKTS) {
- int c;
-
- c = nf10bmac_rx_locked(sc);
- rx_npkts += c;
- if (c == 0)
- break;
- }
-
- if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
- /* Re-enable interrupts. */
- NF10BMAC_RX_INTR_ENABLE(sc);
-
- if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
- nf10bmac_start_locked(ifp);
- }
- NF10BMAC_UNLOCK(sc);
-}
-
-
-#ifdef DEVICE_POLLING
-static int
-nf10bmac_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
-{
- struct nf10bmac_softc *sc;
- int rx_npkts = 0;
-
- sc = ifp->if_softc;
- NF10BMAC_LOCK(sc);
- if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
- NF10BMAC_UNLOCK(sc);
- return (rx_npkts);
- }
-
- while (rx_npkts < count) {
- int c;
-
- c = nf10bmac_rx_locked(sc);
- rx_npkts += c;
- if (c == 0)
- break;
- }
- nf10bmac_start_locked(ifp);
-
- if (rx_npkts > 0 || cmd == POLL_AND_CHECK_STATUS) {
- /* We currently cannot do much. */
- ;
- }
-
- NF10BMAC_UNLOCK(sc);
- return (rx_npkts);
-}
-#else
-#error We only support polling mode
-#endif /* DEVICE_POLLING */
-
-static int
-nf10bmac_media_change(struct ifnet *ifp __unused)
-{
-
- /* Do nothing. */
- return (0);
-}
-
-static void
-nf10bmac_media_status(struct ifnet *ifp __unused, struct ifmediareq *imr)
-{
-
- imr->ifm_status = IFM_AVALID | IFM_ACTIVE;
- imr->ifm_active = IFM_ETHER | IFM_10G_T | IFM_FDX;
-}
-
-static int
-nf10bmac_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
-{
- struct nf10bmac_softc *sc;
- struct ifreq *ifr;
- int error, mask;
-
- error = 0;
- sc = ifp->if_softc;
- ifr = (struct ifreq *)data;
-
- switch (command) {
- case SIOCSIFFLAGS:
- NF10BMAC_LOCK(sc);
- if (ifp->if_flags & IFF_UP) {
- if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0 &&
- ((ifp->if_flags ^ sc->nf10bmac_if_flags) &
- (IFF_PROMISC | IFF_ALLMULTI)) != 0)
- /* Nothing we can do. */ ;
- else
- nf10bmac_init_locked(sc);
- } else if (ifp->if_drv_flags & IFF_DRV_RUNNING)
- nf10bmac_stop_locked(sc);
- sc->nf10bmac_if_flags = ifp->if_flags;
- NF10BMAC_UNLOCK(sc);
- break;
- case SIOCSIFCAP:
- NF10BMAC_LOCK(sc);
- mask = ifr->ifr_reqcap ^ ifp->if_capenable;
-#ifdef DEVICE_POLLING
- if ((mask & IFCAP_POLLING) != 0 &&
- (IFCAP_POLLING & ifp->if_capabilities) != 0) {
- ifp->if_capenable ^= IFCAP_POLLING;
- if ((IFCAP_POLLING & ifp->if_capenable) != 0) {
-
- error = ether_poll_register(nf10bmac_poll, ifp);
- if (error != 0) {
- NF10BMAC_UNLOCK(sc);
- break;
- }
-
- NF10BMAC_RX_INTR_CLEAR_DIS(sc);
-
- /*
- * Do not allow disabling of polling if we do
- * not have interrupts.
- */
- } else if (sc->nf10bmac_rx_irq_res != NULL) {
- error = ether_poll_deregister(ifp);
- /* Enable interrupts. */
- NF10BMAC_RX_INTR_ENABLE(sc);
- } else {
- ifp->if_capenable ^= IFCAP_POLLING;
- error = EINVAL;
- }
- }
-#endif /* DEVICE_POLLING */
- NF10BMAC_UNLOCK(sc);
- break;
- case SIOCGIFMEDIA:
- case SIOCSIFMEDIA:
- error = ifmedia_ioctl(ifp, ifr, &sc->nf10bmac_media, command);
- break;
- default:
- error = ether_ioctl(ifp, command, data);
- break;
- }
-
- return (error);
-}
-
-/*
- * Generic device handling routines.
- */
-int
-nf10bmac_attach(device_t dev)
-{
- struct nf10bmac_softc *sc;
- struct ifnet *ifp;
- int error;
-
- sc = device_get_softc(dev);
-
- mtx_init(&sc->nf10bmac_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
- MTX_DEF);
-
-#ifdef ENABLE_WATCHDOG
- callout_init_mtx(&sc->nf10bmac_tick, &sc->nf10bmac_mtx, 0);
-#endif
-
- sc->nf10bmac_tx_buf = malloc(ETHER_MAX_LEN_JUMBO, M_DEVBUF, M_WAITOK);
-
- /* Reset the adapter. */
- nf10bmac_reset(sc);
-
- /* Setup interface. */
- ifp = sc->nf10bmac_ifp = if_alloc(IFT_ETHER);
- if (ifp == NULL) {
- device_printf(dev, "if_alloc() failed\n");
- error = ENOSPC;
- goto err;
- }
- ifp->if_softc = sc;
- if_initname(ifp, device_get_name(dev), device_get_unit(dev));
- ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX; /* | IFF_MULTICAST; */
- ifp->if_ioctl = nf10bmac_ioctl;
- ifp->if_start = nf10bmac_start;
- ifp->if_init = nf10bmac_init;
- IFQ_SET_MAXLEN(&ifp->if_snd, NF10BMAC_MAX_PKTS - 1);
- ifp->if_snd.ifq_drv_maxlen = NF10BMAC_MAX_PKTS - 1;
- IFQ_SET_READY(&ifp->if_snd);
-
- /* Call media-indepedent attach routine. */
- ether_ifattach(ifp, sc->nf10bmac_eth_addr);
-
- /* Tell the upper layer(s) about vlan mtu support. */
- ifp->if_hdrlen = sizeof(struct ether_vlan_header);
- ifp->if_capabilities |= IFCAP_VLAN_MTU;
- ifp->if_capenable = ifp->if_capabilities;
-#ifdef DEVICE_POLLING
- /* We will enable polling by default if no irqs available. See below. */
- ifp->if_capabilities |= IFCAP_POLLING;
-#endif
-
- /* We need more media attention. Fake it! */
- ifmedia_init(&sc->nf10bmac_media, 0, nf10bmac_media_change,
- nf10bmac_media_status);
- ifmedia_add(&sc->nf10bmac_media, IFM_ETHER | IFM_10G_T, 0, NULL);
- ifmedia_set(&sc->nf10bmac_media, IFM_ETHER | IFM_10G_T);
-
- /* Initialise. */
- error = 0;
-
- /* Hook up interrupts. Well the one. */
- if (sc->nf10bmac_rx_irq_res != NULL) {
- error = bus_setup_intr(dev, sc->nf10bmac_rx_irq_res,
- INTR_TYPE_NET | INTR_MPSAFE, NULL, nf10bmac_intr,
- sc, &sc->nf10bmac_rx_intrhand);
- if (error != 0) {
- device_printf(dev, "enabling RX IRQ failed\n");
- ether_ifdetach(ifp);
- goto err;
- }
- }
-
- if ((ifp->if_capenable & IFCAP_POLLING) != 0 ||
- sc->nf10bmac_rx_irq_res == NULL) {
-#ifdef DEVICE_POLLING
- /* If not on and no IRQs force it on. */
- if (sc->nf10bmac_rx_irq_res == NULL) {
- ifp->if_capenable |= IFCAP_POLLING;
- device_printf(dev,
- "forcing to polling due to no interrupts\n");
- }
- error = ether_poll_register(nf10bmac_poll, ifp);
- if (error != 0)
- goto err;
-#else
- device_printf(dev, "no DEVICE_POLLING in kernel and no IRQs\n");
- error = ENXIO;
-#endif
- } else {
- NF10BMAC_RX_INTR_ENABLE(sc);
- }
-
-err:
- if (error != 0)
- nf10bmac_detach(dev);
-
- return (error);
-}
-
-static int
-nf10bmac_detach(device_t dev)
-{
- struct nf10bmac_softc *sc;
- struct ifnet *ifp;
-
- sc = device_get_softc(dev);
- KASSERT(mtx_initialized(&sc->nf10bmac_mtx),
- ("%s: mutex not initialized", device_get_nameunit(dev)));
- ifp = sc->nf10bmac_ifp;
-
-#ifdef DEVICE_POLLING
- if (ifp->if_capenable & IFCAP_POLLING)
- ether_poll_deregister(ifp);
-#endif
-
- /* Only cleanup if attach succeeded. */
- if (device_is_attached(dev)) {
- NF10BMAC_LOCK(sc);
- nf10bmac_stop_locked(sc);
- NF10BMAC_UNLOCK(sc);
-#ifdef ENABLE_WATCHDOG
- callout_drain(&sc->nf10bmac_tick);
-#endif
- ether_ifdetach(ifp);
- }
-
- if (sc->nf10bmac_rx_intrhand)
- bus_teardown_intr(dev, sc->nf10bmac_rx_irq_res,
- sc->nf10bmac_rx_intrhand);
-
- if (ifp != NULL)
- if_free(ifp);
- ifmedia_removeall(&sc->nf10bmac_media);
-
- mtx_destroy(&sc->nf10bmac_mtx);
-
- return (0);
-}
-
-/* Shared with the attachment specific (e.g., fdt) implementation. */
-void
-nf10bmac_detach_resources(device_t dev)
-{
- struct nf10bmac_softc *sc;
-
- sc = device_get_softc(dev);
-
- if (sc->nf10bmac_rx_irq_res != NULL) {
- bus_release_resource(dev, SYS_RES_IRQ, sc->nf10bmac_rx_irq_rid,
- sc->nf10bmac_rx_irq_res);
- sc->nf10bmac_rx_irq_res = NULL;
- }
- if (sc->nf10bmac_intr_res != NULL) {
- bus_release_resource(dev, SYS_RES_MEMORY,
- sc->nf10bmac_intr_rid, sc->nf10bmac_intr_res);
- sc->nf10bmac_intr_res = NULL;
- }
- if (sc->nf10bmac_rx_mem_res != NULL) {
- bus_release_resource(dev, SYS_RES_MEMORY,
- sc->nf10bmac_rx_mem_rid, sc->nf10bmac_rx_mem_res);
- sc->nf10bmac_rx_mem_res = NULL;
- }
- if (sc->nf10bmac_tx_mem_res != NULL) {
- bus_release_resource(dev, SYS_RES_MEMORY,
- sc->nf10bmac_tx_mem_rid, sc->nf10bmac_tx_mem_res);
- sc->nf10bmac_tx_mem_res = NULL;
- }
- if (sc->nf10bmac_ctrl_res != NULL) {
- bus_release_resource(dev, SYS_RES_MEMORY,
- sc->nf10bmac_ctrl_rid, sc->nf10bmac_ctrl_res);
- sc->nf10bmac_ctrl_res = NULL;
- }
-}
-
-int
-nf10bmac_detach_dev(device_t dev)
-{
- int error;
-
- error = nf10bmac_detach(dev);
- if (error) {
- /* We are basically in undefined state now. */
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