Date: Fri, 31 Dec 2021 22:10:16 GMT From: Warner Losh <imp@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: bf8984881129 - main - netfpga10: mips only, remove Message-ID: <202112312210.1BVMAGxk060954@gitrepo.freebsd.org>
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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. */ *** 336 LINES SKIPPED ***
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