/* $NetBSD: if_cnmac.c,v 1.14 2019/06/07 07:41:22 martin Exp $ */ #include #if 0 __KERNEL_RCSID(0, "$NetBSD: if_cnmac.c,v 1.14 2019/06/07 07:41:22 martin Exp $"); #endif #include "opt_octeon.h" #ifdef OCTEON_ETH_DEBUG #ifndef DIAGNOSTIC #define DIAGNOSTIC #endif #ifndef DEBUG #define DEBUG #endif #endif /* * If no free send buffer is available, free all the sent buffer and bail out. */ #define OCTEON_ETH_SEND_QUEUE_CHECK /* XXX XXX XXX XXX XXX XXX */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef OCTEON_ETH_DEBUG #define OCTEON_ETH_KASSERT(x) KASSERT(x) #define OCTEON_ETH_KDASSERT(x) KDASSERT(x) #else #define OCTEON_ETH_KASSERT(x) #define OCTEON_ETH_KDASSERT(x) #endif /* * Set the PKO to think command buffers are an odd length. This makes it so we * never have to divide a comamnd across two buffers. */ #define OCTEON_POOL_NWORDS_CMD \ (((uint32_t)OCTEON_POOL_SIZE_CMD / sizeof(uint64_t)) - 1) #define FPA_COMMAND_BUFFER_POOL_NWORDS OCTEON_POOL_NWORDS_CMD /* XXX */ static void octeon_eth_buf_init(struct octeon_eth_softc *); static int octeon_eth_match(device_t, struct cfdata *, void *); static void octeon_eth_attach(device_t, device_t, void *); static void octeon_eth_pip_init(struct octeon_eth_softc *); static void octeon_eth_ipd_init(struct octeon_eth_softc *); static void octeon_eth_pko_init(struct octeon_eth_softc *); static void octeon_eth_asx_init(struct octeon_eth_softc *); static void octeon_eth_smi_init(struct octeon_eth_softc *); static void octeon_eth_board_mac_addr(uint8_t *, size_t, struct octeon_eth_softc *); static int octeon_eth_mii_readreg(device_t, int, int, uint16_t *); static int octeon_eth_mii_writereg(device_t, int, int, uint16_t); static void octeon_eth_mii_statchg(struct ifnet *); static int octeon_eth_mediainit(struct octeon_eth_softc *); static void octeon_eth_mediastatus(struct ifnet *, struct ifmediareq *); static int octeon_eth_mediachange(struct ifnet *); static inline void octeon_eth_send_queue_flush_prefetch(struct octeon_eth_softc *); static inline void octeon_eth_send_queue_flush_fetch(struct octeon_eth_softc *); static inline void octeon_eth_send_queue_flush(struct octeon_eth_softc *); static inline void octeon_eth_send_queue_flush_sync(struct octeon_eth_softc *); static inline int octeon_eth_send_queue_is_full(struct octeon_eth_softc *); static inline void octeon_eth_send_queue_add(struct octeon_eth_softc *, struct mbuf *, uint64_t *); static inline void octeon_eth_send_queue_del(struct octeon_eth_softc *, struct mbuf **, uint64_t **); static inline int octeon_eth_buf_free_work(struct octeon_eth_softc *, uint64_t *, uint64_t); static inline void octeon_eth_buf_ext_free_m(struct mbuf *, void *, size_t, void *); static inline void octeon_eth_buf_ext_free_ext(struct mbuf *, void *, size_t, void *); static int octeon_eth_ioctl(struct ifnet *, u_long, void *); static void octeon_eth_watchdog(struct ifnet *); static int octeon_eth_init(struct ifnet *); static void octeon_eth_stop(struct ifnet *, int); static void octeon_eth_start(struct ifnet *); static inline int octeon_eth_send_cmd(struct octeon_eth_softc *, uint64_t, uint64_t, int *); static inline uint64_t octeon_eth_send_makecmd_w1(int, paddr_t); static inline uint64_t octeon_eth_send_makecmd_w0(uint64_t, uint64_t, size_t, int); static inline int octeon_eth_send_makecmd_gbuf(struct octeon_eth_softc *, struct mbuf *, uint64_t *, int *); static inline int octeon_eth_send_makecmd(struct octeon_eth_softc *, struct mbuf *, uint64_t *, uint64_t *, uint64_t *); static inline int octeon_eth_send_buf(struct octeon_eth_softc *, struct mbuf *, uint64_t *, int *); static inline int octeon_eth_send(struct octeon_eth_softc *, struct mbuf *, int *); static int octeon_eth_reset(struct octeon_eth_softc *); static int octeon_eth_configure(struct octeon_eth_softc *); static int octeon_eth_configure_common(struct octeon_eth_softc *); static void octeon_eth_tick_free(void *); static void octeon_eth_tick_misc(void *); static inline int octeon_eth_recv_mbuf(struct octeon_eth_softc *, uint64_t *, struct mbuf **); static inline int octeon_eth_recv_check_code(struct octeon_eth_softc *, uint64_t); static inline int octeon_eth_recv_check_jumbo(struct octeon_eth_softc *, uint64_t); static inline int octeon_eth_recv_check_link(struct octeon_eth_softc *, uint64_t); static inline int octeon_eth_recv_check(struct octeon_eth_softc *, uint64_t); static inline int octeon_eth_recv(struct octeon_eth_softc *, uint64_t *); static void octeon_eth_recv_redir(struct ifnet *, struct mbuf *); static inline void octeon_eth_recv_intr(void *, uint64_t *); /* Device driver context */ static struct octeon_eth_softc *octeon_eth_gsc[GMX_PORT_NUNITS]; static void *octeon_eth_pow_recv_ih; /* sysctl'able parameters */ int octeon_eth_param_pko_cmd_w0_n2 = 1; int octeon_eth_param_pip_dyn_rs = 1; int octeon_eth_param_redir = 0; int octeon_eth_param_pktbuf = 0; int octeon_eth_param_rate = 0; int octeon_eth_param_intr = 0; CFATTACH_DECL_NEW(cnmac, sizeof(struct octeon_eth_softc), octeon_eth_match, octeon_eth_attach, NULL, NULL); #ifdef OCTEON_ETH_DEBUG static const struct octeon_evcnt_entry octeon_evcnt_entries[] = { #define _ENTRY(name, type, parent, descr) \ OCTEON_EVCNT_ENTRY(struct octeon_eth_softc, name, type, parent, descr) _ENTRY(rx, MISC, NULL, "rx"), _ENTRY(rxint, INTR, NULL, "rx intr"), _ENTRY(rxrs, MISC, NULL, "rx dynamic short"), _ENTRY(rxbufpkalloc, MISC, NULL, "rx buf pkt alloc"), _ENTRY(rxbufpkput, MISC, NULL, "rx buf pkt put"), _ENTRY(rxbufwqalloc, MISC, NULL, "rx buf wqe alloc"), _ENTRY(rxbufwqput, MISC, NULL, "rx buf wqe put"), _ENTRY(rxerrcode, MISC, NULL, "rx code error"), _ENTRY(rxerrfix, MISC, NULL, "rx fixup error"), _ENTRY(rxerrjmb, MISC, NULL, "rx jmb error"), _ENTRY(rxerrlink, MISC, NULL, "rx link error"), _ENTRY(rxerroff, MISC, NULL, "rx offload error"), _ENTRY(rxonperrshort, MISC, NULL, "rx onp fixup short error"), _ENTRY(rxonperrpreamble, MISC, NULL, "rx onp fixup preamble error"), _ENTRY(rxonperrcrc, MISC, NULL, "rx onp fixup crc error"), _ENTRY(rxonperraddress, MISC, NULL, "rx onp fixup address error"), _ENTRY(rxonponp, MISC, NULL, "rx onp fixup onp packets"), _ENTRY(rxonpok, MISC, NULL, "rx onp fixup success packets"), _ENTRY(tx, MISC, NULL, "tx"), _ENTRY(txadd, MISC, NULL, "tx add"), _ENTRY(txbufcballoc, MISC, NULL, "tx buf cb alloc"), _ENTRY(txbufcbget, MISC, NULL, "tx buf cb get"), _ENTRY(txbufgballoc, MISC, NULL, "tx buf gb alloc"), _ENTRY(txbufgbget, MISC, NULL, "tx buf gb get"), _ENTRY(txbufgbput, MISC, NULL, "tx buf gb put"), _ENTRY(txdel, MISC, NULL, "tx del"), _ENTRY(txerr, MISC, NULL, "tx error"), _ENTRY(txerrcmd, MISC, NULL, "tx cmd error"), _ENTRY(txerrgbuf, MISC, NULL, "tx gbuf error"), _ENTRY(txerrlink, MISC, NULL, "tx link error"), _ENTRY(txerrmkcmd, MISC, NULL, "tx makecmd error"), #undef _ENTRY }; #endif /* ---- buffer management */ static const struct octeon_eth_pool_param { int poolno; size_t size; size_t nelems; } octeon_eth_pool_params[] = { #define _ENTRY(x) { OCTEON_POOL_NO_##x, OCTEON_POOL_SIZE_##x, OCTEON_POOL_NELEMS_##x } _ENTRY(PKT), _ENTRY(WQE), _ENTRY(CMD), _ENTRY(SG) #undef _ENTRY }; struct octeon_fpa_buf *octeon_eth_pools[8/* XXX */]; #define octeon_eth_fb_pkt octeon_eth_pools[OCTEON_POOL_NO_PKT] #define octeon_eth_fb_wqe octeon_eth_pools[OCTEON_POOL_NO_WQE] #define octeon_eth_fb_cmd octeon_eth_pools[OCTEON_POOL_NO_CMD] #define octeon_eth_fb_sg octeon_eth_pools[OCTEON_POOL_NO_SG] static void octeon_eth_buf_init(struct octeon_eth_softc *sc) { static int once; int i; const struct octeon_eth_pool_param *pp; struct octeon_fpa_buf *fb; if (once == 1) return; once = 1; for (i = 0; i < (int)__arraycount(octeon_eth_pool_params); i++) { pp = &octeon_eth_pool_params[i]; octeon_fpa_buf_init(pp->poolno, pp->size, pp->nelems, &fb); octeon_eth_pools[i] = fb; } } /* ---- autoconf */ static int octeon_eth_match(device_t parent, struct cfdata *match, void *aux) { struct octeon_gmx_attach_args *ga = aux; if (strcmp(match->cf_name, ga->ga_name) != 0) { return 0; } return 1; } static void octeon_eth_attach(device_t parent, device_t self, void *aux) { struct octeon_eth_softc *sc = device_private(self); struct octeon_gmx_attach_args *ga = aux; struct ifnet *ifp = &sc->sc_ethercom.ec_if; uint8_t enaddr[ETHER_ADDR_LEN]; sc->sc_dev = self; sc->sc_regt = ga->ga_regt; sc->sc_port = ga->ga_portno; sc->sc_port_type = ga->ga_port_type; sc->sc_gmx = ga->ga_gmx; sc->sc_gmx_port = ga->ga_gmx_port; sc->sc_init_flag = 0; /* * XXXUEBAYASI * Setting PIP_IP_OFFSET[OFFSET] to 8 causes panic ... why??? */ sc->sc_ip_offset = 0/* XXX */; if (MIPS_PRID_IMPL(mips_options.mips_cpu_id) <= MIPS_CN30XX) { SET(sc->sc_quirks, OCTEON_ETH_QUIRKS_NO_PRE_ALIGN); SET(sc->sc_quirks, OCTEON_ETH_QUIRKS_NO_RX_INBND); } octeon_eth_board_mac_addr(enaddr, sizeof(enaddr), sc); printf("%s: Ethernet address %s\n", device_xname(sc->sc_dev), ether_sprintf(enaddr)); octeon_eth_gsc[sc->sc_port] = sc; SIMPLEQ_INIT(&sc->sc_sendq); sc->sc_soft_req_thresh = 15/* XXX */; sc->sc_ext_callback_cnt = 0; octeon_gmx_stats_init(sc->sc_gmx_port); callout_init(&sc->sc_tick_misc_ch, 0); callout_init(&sc->sc_tick_free_ch, 0); octeon_fau_op_init(&sc->sc_fau_done, OCTEON_CVMSEG_ETHER_OFFSET(sc->sc_port, csm_ether_fau_done), OCT_FAU_REG_ADDR_END - (8 * (sc->sc_port + 1))/* XXX */); octeon_fau_op_set_8(&sc->sc_fau_done, 0); octeon_eth_pip_init(sc); octeon_eth_ipd_init(sc); octeon_eth_pko_init(sc); octeon_eth_asx_init(sc); octeon_eth_smi_init(sc); sc->sc_gmx_port->sc_ipd = sc->sc_ipd; sc->sc_gmx_port->sc_port_asx = sc->sc_asx; sc->sc_gmx_port->sc_port_mii = &sc->sc_mii; sc->sc_gmx_port->sc_port_ec = &sc->sc_ethercom; /* XXX */ sc->sc_gmx_port->sc_quirks = sc->sc_quirks; /* XXX */ sc->sc_pow = &octeon_pow_softc; octeon_eth_mediainit(sc); strncpy(ifp->if_xname, device_xname(sc->sc_dev), sizeof(ifp->if_xname)); ifp->if_softc = sc; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_ioctl = octeon_eth_ioctl; ifp->if_start = octeon_eth_start; ifp->if_watchdog = octeon_eth_watchdog; ifp->if_init = octeon_eth_init; ifp->if_stop = octeon_eth_stop; IFQ_SET_MAXLEN(&ifp->if_snd, uimax(GATHER_QUEUE_SIZE, IFQ_MAXLEN)); IFQ_SET_READY(&ifp->if_snd); /* XXX: not yet tx checksum */ ifp->if_capabilities = IFCAP_CSUM_IPv4_Rx | IFCAP_CSUM_TCPv4_Rx | IFCAP_CSUM_UDPv4_Rx | IFCAP_CSUM_TCPv6_Rx | IFCAP_CSUM_UDPv6_Rx; /* 802.1Q VLAN-sized frames are supported */ sc->sc_ethercom.ec_capabilities |= ETHERCAP_VLAN_MTU; octeon_gmx_set_mac_addr(sc->sc_gmx_port, enaddr); if_attach(ifp); ether_ifattach(ifp, enaddr); octeon_gmx_set_filter(sc->sc_gmx_port); /* XXX */ sc->sc_rate_recv_check_link_cap.tv_sec = 1; sc->sc_rate_recv_check_jumbo_cap.tv_sec = 1; sc->sc_rate_recv_check_code_cap.tv_sec = 1; sc->sc_rate_recv_fixup_odd_nibble_short_cap.tv_sec = 1; sc->sc_rate_recv_fixup_odd_nibble_preamble_cap.tv_sec = 1; sc->sc_rate_recv_fixup_odd_nibble_crc_cap.tv_sec = 1; #ifdef OCTEON_ETH_DEBUG sc->sc_rate_recv_fixup_odd_nibble_addr_cap.tv_sec = 1; #endif /* XXX */ #if 1 octeon_eth_buf_init(sc); #endif if (octeon_eth_pow_recv_ih == NULL) octeon_eth_pow_recv_ih = octeon_pow_intr_establish(OCTEON_POW_GROUP_PIP, IPL_NET, octeon_eth_recv_intr, NULL, NULL); OCTEON_EVCNT_ATTACH_EVCNTS(sc, octeon_evcnt_entries, device_xname(sc->sc_dev)); } /* ---- submodules */ /* XXX */ static void octeon_eth_pip_init(struct octeon_eth_softc *sc) { struct octeon_pip_attach_args pip_aa; pip_aa.aa_port = sc->sc_port; pip_aa.aa_regt = sc->sc_regt; pip_aa.aa_tag_type = POW_TAG_TYPE_ORDERED/* XXX */; pip_aa.aa_receive_group = OCTEON_POW_GROUP_PIP; pip_aa.aa_ip_offset = sc->sc_ip_offset; octeon_pip_init(&pip_aa, &sc->sc_pip); } /* XXX */ static void octeon_eth_ipd_init(struct octeon_eth_softc *sc) { struct octeon_ipd_attach_args ipd_aa; ipd_aa.aa_port = sc->sc_port; ipd_aa.aa_regt = sc->sc_regt; ipd_aa.aa_first_mbuff_skip = 184/* XXX */; ipd_aa.aa_not_first_mbuff_skip = 0/* XXX */; octeon_ipd_init(&ipd_aa, &sc->sc_ipd); } /* XXX */ static void octeon_eth_pko_init(struct octeon_eth_softc *sc) { struct octeon_pko_attach_args pko_aa; pko_aa.aa_port = sc->sc_port; pko_aa.aa_regt = sc->sc_regt; pko_aa.aa_cmdptr = &sc->sc_cmdptr; pko_aa.aa_cmd_buf_pool = OCTEON_POOL_NO_CMD; pko_aa.aa_cmd_buf_size = OCTEON_POOL_NWORDS_CMD; octeon_pko_init(&pko_aa, &sc->sc_pko); } /* XXX */ static void octeon_eth_asx_init(struct octeon_eth_softc *sc) { struct octeon_asx_attach_args asx_aa; asx_aa.aa_port = sc->sc_port; asx_aa.aa_regt = sc->sc_regt; octeon_asx_init(&asx_aa, &sc->sc_asx); } static void octeon_eth_smi_init(struct octeon_eth_softc *sc) { struct octeon_smi_attach_args smi_aa; smi_aa.aa_port = sc->sc_port; smi_aa.aa_regt = sc->sc_regt; octeon_smi_init(&smi_aa, &sc->sc_smi); octeon_smi_set_clock(sc->sc_smi, 0x1464ULL); /* XXX */ } /* ---- XXX */ #define ADDR2UINT64(u, a) \ do { \ u = \ (((uint64_t)a[0] << 40) | ((uint64_t)a[1] << 32) | \ ((uint64_t)a[2] << 24) | ((uint64_t)a[3] << 16) | \ ((uint64_t)a[4] << 8) | ((uint64_t)a[5] << 0)); \ } while (0) #define UINT642ADDR(a, u) \ do { \ a[0] = (uint8_t)((u) >> 40); a[1] = (uint8_t)((u) >> 32); \ a[2] = (uint8_t)((u) >> 24); a[3] = (uint8_t)((u) >> 16); \ a[4] = (uint8_t)((u) >> 8); a[5] = (uint8_t)((u) >> 0); \ } while (0) static void octeon_eth_board_mac_addr(uint8_t *enaddr, size_t size, struct octeon_eth_softc *sc) { prop_dictionary_t dict; prop_data_t ea; dict = device_properties(sc->sc_dev); KASSERT(dict != NULL); ea = prop_dictionary_get(dict, "mac-address"); KASSERT(ea != NULL); memcpy(enaddr, prop_data_data_nocopy(ea), size); } /* ---- media */ static int octeon_eth_mii_readreg(device_t self, int phy_addr, int reg, uint16_t *val) { struct octeon_eth_softc *sc = device_private(self); return octeon_smi_read(sc->sc_smi, phy_addr, reg, val); } static int octeon_eth_mii_writereg(device_t self, int phy_addr, int reg, uint16_t val) { struct octeon_eth_softc *sc = device_private(self); return octeon_smi_write(sc->sc_smi, phy_addr, reg, val); } static void octeon_eth_mii_statchg(struct ifnet *ifp) { struct octeon_eth_softc *sc = ifp->if_softc; octeon_pko_port_enable(sc->sc_pko, 0); octeon_gmx_port_enable(sc->sc_gmx_port, 0); octeon_eth_reset(sc); if (ISSET(ifp->if_flags, IFF_RUNNING)) octeon_gmx_set_filter(sc->sc_gmx_port); octeon_pko_port_enable(sc->sc_pko, 1); octeon_gmx_port_enable(sc->sc_gmx_port, 1); } static int octeon_eth_mediainit(struct octeon_eth_softc *sc) { struct ifnet *ifp = &sc->sc_ethercom.ec_if; struct mii_data *mii = &sc->sc_mii; prop_object_t phy; mii->mii_ifp = ifp; mii->mii_readreg = octeon_eth_mii_readreg; mii->mii_writereg = octeon_eth_mii_writereg; mii->mii_statchg = octeon_eth_mii_statchg; sc->sc_ethercom.ec_mii = mii; /* Initialize ifmedia structures. */ ifmedia_init(&mii->mii_media, 0, octeon_eth_mediachange, octeon_eth_mediastatus); phy = prop_dictionary_get(device_properties(sc->sc_dev), "phy-addr"); KASSERT(phy != NULL); mii_attach(sc->sc_dev, mii, 0xffffffff, prop_number_integer_value(phy), MII_OFFSET_ANY, MIIF_DOPAUSE); /* XXX XXX XXX */ if (LIST_FIRST(&mii->mii_phys) != NULL) { /* XXX XXX XXX */ ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); /* XXX XXX XXX */ } else { /* XXX XXX XXX */ ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, MII_MEDIA_NONE, NULL); /* XXX XXX XXX */ ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); /* XXX XXX XXX */ } /* XXX XXX XXX */ return 0; } static void octeon_eth_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) { struct octeon_eth_softc *sc = ifp->if_softc; mii_pollstat(&sc->sc_mii); ifmr->ifm_status = sc->sc_mii.mii_media_status; ifmr->ifm_active = sc->sc_mii.mii_media_active; ifmr->ifm_active = (sc->sc_mii.mii_media_active & ~IFM_ETH_FMASK) | sc->sc_gmx_port->sc_port_flowflags; } static int octeon_eth_mediachange(struct ifnet *ifp) { struct octeon_eth_softc *sc = ifp->if_softc; mii_mediachg(&sc->sc_mii); return 0; } /* ---- send buffer garbage collection */ static inline void octeon_eth_send_queue_flush_prefetch(struct octeon_eth_softc *sc) { OCTEON_ETH_KASSERT(sc->sc_prefetch == 0); octeon_fau_op_inc_fetch_8(&sc->sc_fau_done, 0); sc->sc_prefetch = 1; } static inline void octeon_eth_send_queue_flush_fetch(struct octeon_eth_softc *sc) { #ifndef OCTEON_ETH_DEBUG if (!sc->sc_prefetch) return; #endif OCTEON_ETH_KASSERT(sc->sc_prefetch == 1); sc->sc_hard_done_cnt = octeon_fau_op_inc_read_8(&sc->sc_fau_done); OCTEON_ETH_KASSERT(sc->sc_hard_done_cnt <= 0); sc->sc_prefetch = 0; } static inline void octeon_eth_send_queue_flush(struct octeon_eth_softc *sc) { struct ifnet *ifp = &sc->sc_ethercom.ec_if; const int64_t sent_count = sc->sc_hard_done_cnt; int i; OCTEON_ETH_KASSERT(sc->sc_flush == 0); OCTEON_ETH_KASSERT(sent_count <= 0); for (i = 0; i < 0 - sent_count; i++) { struct mbuf *m; uint64_t *gbuf; octeon_eth_send_queue_del(sc, &m, &gbuf); octeon_fpa_buf_put(octeon_eth_fb_sg, gbuf); OCTEON_EVCNT_INC(sc, txbufgbput); m_freem(m); CLR(ifp->if_flags, IFF_OACTIVE); } octeon_fau_op_inc_fetch_8(&sc->sc_fau_done, i); sc->sc_flush = i; } static inline void octeon_eth_send_queue_flush_sync(struct octeon_eth_softc *sc) { if (sc->sc_flush == 0) return; OCTEON_ETH_KASSERT(sc->sc_flush > 0); /* XXX XXX XXX */ octeon_fau_op_inc_read_8(&sc->sc_fau_done); sc->sc_soft_req_cnt -= sc->sc_flush; OCTEON_ETH_KASSERT(sc->sc_soft_req_cnt >= 0); /* XXX XXX XXX */ sc->sc_flush = 0; } static inline int octeon_eth_send_queue_is_full(struct octeon_eth_softc *sc) { #ifdef OCTEON_ETH_SEND_QUEUE_CHECK int64_t nofree_cnt; nofree_cnt = sc->sc_soft_req_cnt + sc->sc_hard_done_cnt; if (__predict_false(nofree_cnt == GATHER_QUEUE_SIZE - 1)) { octeon_eth_send_queue_flush(sc); OCTEON_EVCNT_INC(sc, txerrgbuf); octeon_eth_send_queue_flush_sync(sc); return 1; } #endif return 0; } /* * (Ab)use m_nextpkt and m_paddr to maintain mbuf chain and pointer to gather * buffer. Other mbuf members may be used by m_freem(), so don't touch them! */ struct _send_queue_entry { union { struct mbuf _sqe_s_mbuf; struct { char _sqe_s_entry_pad[offsetof(struct mbuf, m_nextpkt)]; SIMPLEQ_ENTRY(_send_queue_entry) _sqe_s_entry_entry; } _sqe_s_entry; struct { char _sqe_s_gbuf_pad[offsetof(struct mbuf, m_paddr)]; uint64_t *_sqe_s_gbuf_gbuf; } _sqe_s_gbuf; } _sqe_u; #define _sqe_entry _sqe_u._sqe_s_entry._sqe_s_entry_entry #define _sqe_gbuf _sqe_u._sqe_s_gbuf._sqe_s_gbuf_gbuf }; static inline void octeon_eth_send_queue_add(struct octeon_eth_softc *sc, struct mbuf *m, uint64_t *gbuf) { struct _send_queue_entry *sqe = (struct _send_queue_entry *)m; sqe->_sqe_gbuf = gbuf; SIMPLEQ_INSERT_TAIL(&sc->sc_sendq, sqe, _sqe_entry); if ((m->m_flags & M_EXT) && m->m_ext.ext_free != NULL) sc->sc_ext_callback_cnt++; OCTEON_EVCNT_INC(sc, txadd); } static inline void octeon_eth_send_queue_del(struct octeon_eth_softc *sc, struct mbuf **rm, uint64_t **rgbuf) { struct _send_queue_entry *sqe; sqe = SIMPLEQ_FIRST(&sc->sc_sendq); OCTEON_ETH_KASSERT(sqe != NULL); SIMPLEQ_REMOVE_HEAD(&sc->sc_sendq, _sqe_entry); *rm = (void *)sqe; *rgbuf = sqe->_sqe_gbuf; if (((*rm)->m_flags & M_EXT) && (*rm)->m_ext.ext_free != NULL) { sc->sc_ext_callback_cnt--; OCTEON_ETH_KASSERT(sc->sc_ext_callback_cnt >= 0); } OCTEON_EVCNT_INC(sc, txdel); } static inline int octeon_eth_buf_free_work(struct octeon_eth_softc *sc, uint64_t *work, uint64_t word2) { /* XXX when jumbo frame */ if (ISSET(word2, PIP_WQE_WORD2_IP_BUFS)) { paddr_t addr; paddr_t start_buffer; addr = work[3] & PIP_WQE_WORD3_ADDR; start_buffer = addr & ~(2048 - 1); octeon_fpa_buf_put_paddr(octeon_eth_fb_pkt, start_buffer); OCTEON_EVCNT_INC(sc, rxbufpkput); } octeon_fpa_buf_put(octeon_eth_fb_wqe, work); OCTEON_EVCNT_INC(sc, rxbufwqput); return 0; } static inline void octeon_eth_buf_ext_free_m(struct mbuf *m, void *buf, size_t size, void *arg) { uint64_t *work = (void *)arg; #ifdef OCTEON_ETH_DEBUG struct octeon_eth_softc *sc = (void *)(uintptr_t)work[0]; #endif int s = splnet(); OCTEON_EVCNT_INC(sc, rxrs); octeon_fpa_buf_put(octeon_eth_fb_wqe, work); OCTEON_EVCNT_INC(sc, rxbufwqput); OCTEON_ETH_KASSERT(m != NULL); pool_cache_put(mb_cache, m); splx(s); } static inline void octeon_eth_buf_ext_free_ext(struct mbuf *m, void *buf, size_t size, void *arg) { uint64_t *work = (void *)arg; #ifdef OCTEON_ETH_DEBUG struct octeon_eth_softc *sc = (void *)(uintptr_t)work[0]; #endif int s = splnet(); octeon_fpa_buf_put(octeon_eth_fb_wqe, work); OCTEON_EVCNT_INC(sc, rxbufwqput); octeon_fpa_buf_put(octeon_eth_fb_pkt, buf); OCTEON_EVCNT_INC(sc, rxbufpkput); OCTEON_ETH_KASSERT(m != NULL); pool_cache_put(mb_cache, m); splx(s); } /* ---- ifnet interfaces */ static int octeon_eth_ioctl(struct ifnet *ifp, u_long cmd, void *data) { struct octeon_eth_softc *sc = ifp->if_softc; struct ifreq *ifr = (struct ifreq *)data; int s, error; s = splnet(); switch (cmd) { case SIOCSIFMEDIA: /* Flow control requires full-duplex mode. */ if (IFM_SUBTYPE(ifr->ifr_media) == IFM_AUTO || (ifr->ifr_media & IFM_FDX) == 0) { ifr->ifr_media &= ~IFM_ETH_FMASK; } if (IFM_SUBTYPE(ifr->ifr_media) != IFM_AUTO) { if ((ifr->ifr_media & IFM_ETH_FMASK) == IFM_FLOW) { ifr->ifr_media |= IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE; } sc->sc_gmx_port->sc_port_flowflags = ifr->ifr_media & IFM_ETH_FMASK; } error = ifmedia_ioctl(ifp, ifr, &sc->sc_mii.mii_media, cmd); break; default: error = ether_ioctl(ifp, cmd, data); if (error == ENETRESET) { /* * Multicast list has changed; set the hardware filter * accordingly. */ if (ISSET(ifp->if_flags, IFF_RUNNING)) octeon_gmx_set_filter(sc->sc_gmx_port); error = 0; } break; } octeon_eth_start(ifp); splx(s); return error; } /* ---- send (output) */ static inline uint64_t octeon_eth_send_makecmd_w0(uint64_t fau0, uint64_t fau1, size_t len, int segs) { return octeon_pko_cmd_word0( OCT_FAU_OP_SIZE_64, /* sz1 */ OCT_FAU_OP_SIZE_64, /* sz0 */ 1, fau1, 1, fau0, /* s1, reg1, s0, reg0 */ 0, /* le */ octeon_eth_param_pko_cmd_w0_n2, /* n2 */ 1, 0, /* q, r */ (segs == 1) ? 0 : 1, /* g */ 0, 0, 1, /* ipoffp1, ii, df */ segs, (int)len); /* segs, totalbytes */ } static inline uint64_t octeon_eth_send_makecmd_w1(int size, paddr_t addr) { return octeon_pko_cmd_word1( 0, 0, /* i, back */ FPA_GATHER_BUFFER_POOL, /* pool */ size, addr); /* size, addr */ } static inline int octeon_eth_send_makecmd_gbuf(struct octeon_eth_softc *sc, struct mbuf *m0, uint64_t *gbuf, int *rsegs) { struct mbuf *m; int segs = 0; uintptr_t laddr, rlen, nlen; for (m = m0; m != NULL; m = m->m_next) { if (__predict_false(m->m_len == 0)) continue; #if 0 OCTEON_ETH_KASSERT(((uint32_t)m->m_data & (PAGE_SIZE - 1)) == (kvtophys((vaddr_t)m->m_data) & (PAGE_SIZE - 1))); #endif /* Aligned 4k */ laddr = (uintptr_t)m->m_data & (PAGE_SIZE - 1); if (laddr + m->m_len > PAGE_SIZE) { /* XXX XXX XXX */ rlen = PAGE_SIZE - laddr; nlen = m->m_len - rlen; *(gbuf + segs) = octeon_eth_send_makecmd_w1(rlen, kvtophys((vaddr_t)m->m_data)); segs++; if (segs > 63) { return 1; } /* XXX XXX XXX */ } else { rlen = 0; nlen = m->m_len; } *(gbuf + segs) = octeon_eth_send_makecmd_w1(nlen, kvtophys((vaddr_t)(m->m_data + rlen))); segs++; if (segs > 63) { return 1; } } OCTEON_ETH_KASSERT(m == NULL); *rsegs = segs; return 0; } static inline int octeon_eth_send_makecmd(struct octeon_eth_softc *sc, struct mbuf *m, uint64_t *gbuf, uint64_t *rpko_cmd_w0, uint64_t *rpko_cmd_w1) { uint64_t pko_cmd_w0, pko_cmd_w1; int segs; int result = 0; if (octeon_eth_send_makecmd_gbuf(sc, m, gbuf, &segs)) { log(LOG_WARNING, "%s: there are a lot of number of segments" " of transmission data", device_xname(sc->sc_dev)); result = 1; goto done; } /* * segs == 1 -> link mode (single continuous buffer) * WORD1[size] is number of bytes pointed by segment * * segs > 1 -> gather mode (scatter-gather buffer) * WORD1[size] is number of segments */ pko_cmd_w0 = octeon_eth_send_makecmd_w0(sc->sc_fau_done.fd_regno, 0, m->m_pkthdr.len, segs); if (segs == 1) { pko_cmd_w1 = octeon_eth_send_makecmd_w1( m->m_pkthdr.len, kvtophys((vaddr_t)m->m_data)); } else { #ifdef __mips_n32 KASSERT(MIPS_KSEG0_P(gbuf)); pko_cmd_w1 = octeon_eth_send_makecmd_w1(segs, MIPS_KSEG0_TO_PHYS(gbuf)); #else pko_cmd_w1 = octeon_eth_send_makecmd_w1(segs, MIPS_XKPHYS_TO_PHYS(gbuf)); #endif } *rpko_cmd_w0 = pko_cmd_w0; *rpko_cmd_w1 = pko_cmd_w1; done: return result; } static inline int octeon_eth_send_cmd(struct octeon_eth_softc *sc, uint64_t pko_cmd_w0, uint64_t pko_cmd_w1, int *pwdc) { uint64_t *cmdptr; int result = 0; #ifdef __mips_n32 KASSERT((sc->sc_cmdptr.cmdptr & ~MIPS_PHYS_MASK) == 0); cmdptr = (uint64_t *)MIPS_PHYS_TO_KSEG0(sc->sc_cmdptr.cmdptr); #else cmdptr = (uint64_t *)MIPS_PHYS_TO_XKPHYS_CACHED(sc->sc_cmdptr.cmdptr); #endif cmdptr += sc->sc_cmdptr.cmdptr_idx; OCTEON_ETH_KASSERT(cmdptr != NULL); *cmdptr++ = pko_cmd_w0; *cmdptr++ = pko_cmd_w1; OCTEON_ETH_KASSERT(sc->sc_cmdptr.cmdptr_idx + 2 <= FPA_COMMAND_BUFFER_POOL_NWORDS - 1); if (sc->sc_cmdptr.cmdptr_idx + 2 == FPA_COMMAND_BUFFER_POOL_NWORDS - 1) { paddr_t buf; buf = octeon_fpa_buf_get_paddr(octeon_eth_fb_cmd); if (buf == 0) { log(LOG_WARNING, "%s: can not allocate command buffer from free pool allocator\n", device_xname(sc->sc_dev)); result = 1; goto done; } OCTEON_EVCNT_INC(sc, txbufcbget); *cmdptr++ = buf; sc->sc_cmdptr.cmdptr = (uint64_t)buf; sc->sc_cmdptr.cmdptr_idx = 0; } else { sc->sc_cmdptr.cmdptr_idx += 2; } *pwdc += 2; done: return result; } static inline int octeon_eth_send_buf(struct octeon_eth_softc *sc, struct mbuf *m, uint64_t *gbuf, int *pwdc) { int result = 0, error; uint64_t pko_cmd_w0, pko_cmd_w1; error = octeon_eth_send_makecmd(sc, m, gbuf, &pko_cmd_w0, &pko_cmd_w1); if (error != 0) { /* Already logging */ OCTEON_EVCNT_INC(sc, txerrmkcmd); result = error; goto done; } error = octeon_eth_send_cmd(sc, pko_cmd_w0, pko_cmd_w1, pwdc); if (error != 0) { /* Already logging */ OCTEON_EVCNT_INC(sc, txerrcmd); result = error; } done: return result; } static inline int octeon_eth_send(struct octeon_eth_softc *sc, struct mbuf *m, int *pwdc) { paddr_t gaddr = 0; uint64_t *gbuf = NULL; int result = 0, error; OCTEON_EVCNT_INC(sc, tx); gaddr = octeon_fpa_buf_get_paddr(octeon_eth_fb_sg); if (gaddr == 0) { log(LOG_WARNING, "%s: can not allocate gather buffer from " "free pool allocator\n", device_xname(sc->sc_dev)); OCTEON_EVCNT_INC(sc, txerrgbuf); result = 1; goto done; } OCTEON_EVCNT_INC(sc, txbufgbget); #ifdef __mips_n32 KASSERT((gaddr & ~MIPS_PHYS_MASK) == 0); gbuf = (uint64_t *)(uintptr_t)MIPS_PHYS_TO_KSEG0(gaddr); #else gbuf = (uint64_t *)(uintptr_t)MIPS_PHYS_TO_XKPHYS_CACHED(gaddr); #endif OCTEON_ETH_KASSERT(gbuf != NULL); error = octeon_eth_send_buf(sc, m, gbuf, pwdc); if (error != 0) { /* Already logging */ octeon_fpa_buf_put_paddr(octeon_eth_fb_sg, gaddr); OCTEON_EVCNT_INC(sc, txbufgbput); result = error; goto done; } octeon_eth_send_queue_add(sc, m, gbuf); done: return result; } static void octeon_eth_start(struct ifnet *ifp) { struct octeon_eth_softc *sc = ifp->if_softc; struct mbuf *m; int wdc = 0; /* * Performance tuning * presend iobdma request */ octeon_eth_send_queue_flush_prefetch(sc); if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) goto last; /* XXX assume that OCTEON doesn't buffer packets */ if (__predict_false(!octeon_gmx_link_status(sc->sc_gmx_port))) { /* Dequeue and drop them */ while (1) { IFQ_DEQUEUE(&ifp->if_snd, m); if (m == NULL) break; m_freem(m); IF_DROP(&ifp->if_snd); OCTEON_EVCNT_INC(sc, txerrlink); } goto last; } for (;;) { IFQ_POLL(&ifp->if_snd, m); if (__predict_false(m == NULL)) break; /* XXX XXX XXX */ octeon_eth_send_queue_flush_fetch(sc); /* * If no free send buffer is available, free all the sent * buffer and bail out. */ if (octeon_eth_send_queue_is_full(sc)) { SET(ifp->if_flags, IFF_OACTIVE); if (wdc > 0) octeon_pko_op_doorbell_write(sc->sc_port, sc->sc_port, wdc); return; } /* XXX XXX XXX */ IFQ_DEQUEUE(&ifp->if_snd, m); bpf_mtap(ifp, m, BPF_D_OUT); /* XXX XXX XXX */ if (sc->sc_soft_req_cnt > sc->sc_soft_req_thresh) octeon_eth_send_queue_flush(sc); if (octeon_eth_send(sc, m, &wdc)) { IF_DROP(&ifp->if_snd); m_freem(m); log(LOG_WARNING, "%s: failed in the transmission of the packet\n", device_xname(sc->sc_dev)); OCTEON_EVCNT_INC(sc, txerr); } else sc->sc_soft_req_cnt++; if (sc->sc_flush) octeon_eth_send_queue_flush_sync(sc); /* XXX XXX XXX */ /* Send next iobdma request */ octeon_eth_send_queue_flush_prefetch(sc); } if (wdc > 0) octeon_pko_op_doorbell_write(sc->sc_port, sc->sc_port, wdc); /* * Don't schedule send-buffer-free callout every time - those buffers are freed * by "free tick". This makes some packets like NFS slower. */ #ifdef OCTEON_ETH_USENFS if (__predict_false(sc->sc_ext_callback_cnt > 0)) { int timo; /* ??? */ timo = hz - (100 * sc->sc_ext_callback_cnt); if (timo < 10) timo = 10; callout_schedule(&sc->sc_tick_free_ch, timo); } #endif last: octeon_eth_send_queue_flush_fetch(sc); } static void octeon_eth_watchdog(struct ifnet *ifp) { struct octeon_eth_softc *sc = ifp->if_softc; printf("%s: device timeout\n", device_xname(sc->sc_dev)); octeon_eth_configure(sc); SET(ifp->if_flags, IFF_RUNNING); CLR(ifp->if_flags, IFF_OACTIVE); ifp->if_timer = 0; octeon_eth_start(ifp); } static int octeon_eth_init(struct ifnet *ifp) { struct octeon_eth_softc *sc = ifp->if_softc; /* XXX don't disable commonly used parts!!! XXX */ if (sc->sc_init_flag == 0) { /* Cancel any pending I/O. */ octeon_eth_stop(ifp, 0); /* Initialize the device */ octeon_eth_configure(sc); octeon_pko_enable(sc->sc_pko); octeon_ipd_enable(sc->sc_ipd); sc->sc_init_flag = 1; } else { octeon_gmx_port_enable(sc->sc_gmx_port, 1); } octeon_eth_mediachange(ifp); octeon_gmx_set_filter(sc->sc_gmx_port); callout_reset(&sc->sc_tick_misc_ch, hz, octeon_eth_tick_misc, sc); callout_reset(&sc->sc_tick_free_ch, hz, octeon_eth_tick_free, sc); SET(ifp->if_flags, IFF_RUNNING); CLR(ifp->if_flags, IFF_OACTIVE); return 0; } static void octeon_eth_stop(struct ifnet *ifp, int disable) { struct octeon_eth_softc *sc = ifp->if_softc; callout_stop(&sc->sc_tick_misc_ch); callout_stop(&sc->sc_tick_free_ch); mii_down(&sc->sc_mii); octeon_gmx_port_enable(sc->sc_gmx_port, 0); /* Mark the interface as down and cancel the watchdog timer. */ CLR(ifp->if_flags, IFF_RUNNING | IFF_OACTIVE); ifp->if_timer = 0; } /* ---- misc */ #define PKO_INDEX_MASK ((1ULL << 12/* XXX */) - 1) static int octeon_eth_reset(struct octeon_eth_softc *sc) { octeon_gmx_reset_speed(sc->sc_gmx_port); octeon_gmx_reset_flowctl(sc->sc_gmx_port); octeon_gmx_reset_timing(sc->sc_gmx_port); return 0; } static int octeon_eth_configure(struct octeon_eth_softc *sc) { octeon_gmx_port_enable(sc->sc_gmx_port, 0); octeon_eth_reset(sc); octeon_eth_configure_common(sc); octeon_pko_port_config(sc->sc_pko); octeon_pko_port_enable(sc->sc_pko, 1); octeon_pip_port_config(sc->sc_pip); octeon_gmx_tx_stats_rd_clr(sc->sc_gmx_port, 1); octeon_gmx_rx_stats_rd_clr(sc->sc_gmx_port, 1); octeon_gmx_port_enable(sc->sc_gmx_port, 1); return 0; } static int octeon_eth_configure_common(struct octeon_eth_softc *sc) { static int once; if (once == 1) return 0; once = 1; octeon_ipd_config(sc->sc_ipd); #ifdef OCTEON_ETH_IPD_RED octeon_ipd_red(sc->sc_ipd, RECV_QUEUE_SIZE >> 2, RECV_QUEUE_SIZE >> 3); #endif octeon_pko_config(sc->sc_pko); octeon_pow_config(sc->sc_pow, OCTEON_POW_GROUP_PIP); return 0; } /* ---- receive (input) */ static inline int octeon_eth_recv_mbuf(struct octeon_eth_softc *sc, uint64_t *work, struct mbuf **rm) { struct mbuf *m; void (*ext_free)(struct mbuf *, void *, size_t, void *); void *ext_buf; size_t ext_size; void *data; uint64_t word1 = work[1]; uint64_t word2 = work[2]; uint64_t word3 = work[3]; MGETHDR(m, M_NOWAIT, MT_DATA); if (m == NULL) return 1; OCTEON_ETH_KASSERT(m != NULL); if ((word2 & PIP_WQE_WORD2_IP_BUFS) == 0) { /* Dynamic short */ ext_free = octeon_eth_buf_ext_free_m; ext_buf = &work[4]; ext_size = 96; data = &work[4 + sc->sc_ip_offset / sizeof(uint64_t)]; } else { vaddr_t addr; vaddr_t start_buffer; #ifdef __mips_n32 KASSERT((word3 & ~MIPS_PHYS_MASK) == 0); addr = MIPS_PHYS_TO_KSEG0(word3 & PIP_WQE_WORD3_ADDR); #else addr = MIPS_PHYS_TO_XKPHYS_CACHED(word3 & PIP_WQE_WORD3_ADDR); #endif start_buffer = addr & ~(2048 - 1); ext_free = octeon_eth_buf_ext_free_ext; ext_buf = (void *)start_buffer; ext_size = 2048; data = (void *)addr; } /* Embed sc pointer into work[0] for _ext_free evcnt */ work[0] = (uintptr_t)sc; MEXTADD(m, ext_buf, ext_size, 0, ext_free, work); OCTEON_ETH_KASSERT(ISSET(m->m_flags, M_EXT)); m->m_data = data; m->m_len = m->m_pkthdr.len = (word1 & PIP_WQE_WORD1_LEN) >> 48; m_set_rcvif(m, &sc->sc_ethercom.ec_if); /* Not readonly buffer */ m->m_flags |= M_EXT_RW; *rm = m; OCTEON_ETH_KASSERT(*rm != NULL); return 0; } static inline int octeon_eth_recv_check_code(struct octeon_eth_softc *sc, uint64_t word2) { uint64_t opecode = word2 & PIP_WQE_WORD2_NOIP_OPECODE; if (__predict_true(!ISSET(word2, PIP_WQE_WORD2_NOIP_RE))) return 0; /* This error is harmless */ if (opecode == PIP_OVER_ERR) return 0; return 1; } static inline int octeon_eth_recv_check_jumbo(struct octeon_eth_softc *sc, uint64_t word2) { if (__predict_false((word2 & PIP_WQE_WORD2_IP_BUFS) > (1ULL << 56))) return 1; return 0; } static inline int octeon_eth_recv_check_link(struct octeon_eth_softc *sc, uint64_t word2) { if (__predict_false(!octeon_gmx_link_status(sc->sc_gmx_port))) return 1; return 0; } static inline int octeon_eth_recv_check(struct octeon_eth_softc *sc, uint64_t word2) { if (__predict_false(octeon_eth_recv_check_link(sc, word2)) != 0) { if (ratecheck(&sc->sc_rate_recv_check_link_last, &sc->sc_rate_recv_check_link_cap)) log(LOG_DEBUG, "%s: link is not up, the packet was dropped\n", device_xname(sc->sc_dev)); OCTEON_EVCNT_INC(sc, rxerrlink); return 1; } #if 0 /* XXX Performance tunig (Jumbo-frame is not supported yet!) */ if (__predict_false(octeon_eth_recv_check_jumbo(sc, word2)) != 0) { /* XXX jumbo frame */ if (ratecheck(&sc->sc_rate_recv_check_jumbo_last, &sc->sc_rate_recv_check_jumbo_cap)) log(LOG_DEBUG, "jumbo frame was received\n"); OCTEON_EVCNT_INC(sc, rxerrjmb); return 1; } #endif if (__predict_false(octeon_eth_recv_check_code(sc, word2)) != 0) { if ((word2 & PIP_WQE_WORD2_NOIP_OPECODE) == PIP_WQE_WORD2_RE_OPCODE_LENGTH) { /* No logging */ /* XXX inclement special error count */ } else if ((word2 & PIP_WQE_WORD2_NOIP_OPECODE) == PIP_WQE_WORD2_RE_OPCODE_PARTIAL) { /* Not an erorr. it's because of overload */ } else { if (ratecheck(&sc->sc_rate_recv_check_code_last, &sc->sc_rate_recv_check_code_cap)) log(LOG_WARNING, "%s: reception error, packet dropped " "(error code = %" PRId64 ")\n", device_xname(sc->sc_dev), word2 & PIP_WQE_WORD2_NOIP_OPECODE); } OCTEON_EVCNT_INC(sc, rxerrcode); return 1; } return 0; } static inline int octeon_eth_recv(struct octeon_eth_softc *sc, uint64_t *work) { int result = 0; struct ifnet *ifp; struct mbuf *m; uint64_t word2; /* XXX XXX XXX */ /* * Performance tuning * presend iobdma request */ if (sc->sc_soft_req_cnt > sc->sc_soft_req_thresh) { octeon_eth_send_queue_flush_prefetch(sc); } /* XXX XXX XXX */ OCTEON_ETH_KASSERT(sc != NULL); OCTEON_ETH_KASSERT(work != NULL); OCTEON_EVCNT_INC(sc, rx); word2 = work[2]; ifp = &sc->sc_ethercom.ec_if; OCTEON_ETH_KASSERT(ifp != NULL); if (__predict_false(octeon_eth_recv_check(sc, word2) != 0)) { ifp->if_ierrors++; result = 1; octeon_eth_buf_free_work(sc, work, word2); goto drop; } if (__predict_false(octeon_eth_recv_mbuf(sc, work, &m) != 0)) { ifp->if_ierrors++; result = 1; octeon_eth_buf_free_work(sc, work, word2); goto drop; } /* work[0] .. work[3] may not be valid any more */ OCTEON_ETH_KASSERT(m != NULL); octeon_ipd_offload(word2, m->m_data, &m->m_pkthdr.csum_flags); /* XXX XXX XXX */ if (sc->sc_soft_req_cnt > sc->sc_soft_req_thresh) { octeon_eth_send_queue_flush_fetch(sc); octeon_eth_send_queue_flush(sc); } /* XXX XXX XXX */ if (sc->sc_flush) octeon_eth_send_queue_flush_sync(sc); /* XXX XXX XXX */ if_percpuq_enqueue(ifp->if_percpuq, m); return 0; drop: /* XXX XXX XXX */ if (sc->sc_soft_req_cnt > sc->sc_soft_req_thresh) { octeon_eth_send_queue_flush_fetch(sc); } /* XXX XXX XXX */ return result; } static void octeon_eth_recv_redir(struct ifnet *ifp, struct mbuf *m) { struct octeon_eth_softc *rsc = ifp->if_softc; struct octeon_eth_softc *sc = NULL; int i, wdc = 0; for (i = 0; i < 3 /* XXX */; i++) { if (rsc->sc_redir & (1 << i)) sc = octeon_eth_gsc[i]; } if (sc == NULL) { m_freem(m); return; } octeon_eth_send_queue_flush_prefetch(sc); octeon_eth_send_queue_flush_fetch(sc); if (octeon_eth_send_queue_is_full(sc)) { m_freem(m); return; } if (sc->sc_soft_req_cnt > sc->sc_soft_req_thresh) octeon_eth_send_queue_flush(sc); if (octeon_eth_send(sc, m, &wdc)) { IF_DROP(&ifp->if_snd); m_freem(m); } else { octeon_pko_op_doorbell_write(sc->sc_port, sc->sc_port, wdc); sc->sc_soft_req_cnt++; } if (sc->sc_flush) octeon_eth_send_queue_flush_sync(sc); } static inline void octeon_eth_recv_intr(void *data, uint64_t *work) { struct octeon_eth_softc *sc; int port; OCTEON_ETH_KASSERT(work != NULL); port = (work[1] & PIP_WQE_WORD1_IPRT) >> 42; OCTEON_ETH_KASSERT(port < GMX_PORT_NUNITS); sc = octeon_eth_gsc[port]; OCTEON_ETH_KASSERT(sc != NULL); OCTEON_ETH_KASSERT(port == sc->sc_port); /* XXX process all work queue entries anyway */ (void)octeon_eth_recv(sc, work); } /* ---- tick */ /* * octeon_eth_tick_free * * => garbage collect send gather buffer / mbuf * => called at softclock */ static void octeon_eth_tick_free(void *arg) { struct octeon_eth_softc *sc = arg; int timo; int s; s = splnet(); /* XXX XXX XXX */ if (sc->sc_soft_req_cnt > 0) { octeon_eth_send_queue_flush_prefetch(sc); octeon_eth_send_queue_flush_fetch(sc); octeon_eth_send_queue_flush(sc); octeon_eth_send_queue_flush_sync(sc); } /* XXX XXX XXX */ /* XXX XXX XXX */ /* ??? */ timo = hz - (100 * sc->sc_ext_callback_cnt); if (timo < 10) timo = 10; callout_schedule(&sc->sc_tick_free_ch, timo); /* XXX XXX XXX */ splx(s); } /* * octeon_eth_tick_misc * * => collect statistics * => check link status * => called at softclock */ static void octeon_eth_tick_misc(void *arg) { struct octeon_eth_softc *sc = arg; struct ifnet *ifp; int s; s = splnet(); ifp = &sc->sc_ethercom.ec_if; octeon_gmx_stats(sc->sc_gmx_port); octeon_pip_stats(sc->sc_pip, ifp, sc->sc_port); mii_tick(&sc->sc_mii); splx(s); callout_schedule(&sc->sc_tick_misc_ch, hz); } /* ---- Odd nibble preamble workaround (software CRC processing) */ /* ---- sysctl */ static int octeon_eth_sysctl_verify(SYSCTLFN_ARGS); static int octeon_eth_sysctl_pool(SYSCTLFN_ARGS); static int octeon_eth_sysctl_rd(SYSCTLFN_ARGS); static int octeon_eth_sysctl_pkocmdw0n2_num; static int octeon_eth_sysctl_pipdynrs_num; static int octeon_eth_sysctl_redir_num; static int octeon_eth_sysctl_pkt_pool_num; static int octeon_eth_sysctl_wqe_pool_num; static int octeon_eth_sysctl_cmd_pool_num; static int octeon_eth_sysctl_sg_pool_num; static int octeon_eth_sysctl_pktbuf_num; /* * Set up sysctl(3) MIB, hw.cnmac.*. */ SYSCTL_SETUP(sysctl_octeon_eth, "sysctl cnmac subtree setup") { int rc; int octeon_eth_sysctl_root_num; const struct sysctlnode *node; if ((rc = sysctl_createv(clog, 0, NULL, NULL, 0, CTLTYPE_NODE, "hw", NULL, NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) { goto err; } if ((rc = sysctl_createv(clog, 0, NULL, &node, 0, CTLTYPE_NODE, "cnmac", SYSCTL_DESCR("cnmac interface controls"), NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) { goto err; } octeon_eth_sysctl_root_num = node->sysctl_num; if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "pko_cmd_w0_n2", SYSCTL_DESCR("PKO command WORD0 N2 bit"), octeon_eth_sysctl_verify, 0, &octeon_eth_param_pko_cmd_w0_n2, 0, CTL_HW, octeon_eth_sysctl_root_num, CTL_CREATE, CTL_EOL)) != 0) { goto err; } octeon_eth_sysctl_pkocmdw0n2_num = node->sysctl_num; if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "pip_dyn_rs", SYSCTL_DESCR("PIP dynamic short in WQE"), octeon_eth_sysctl_verify, 0, &octeon_eth_param_pip_dyn_rs, 0, CTL_HW, octeon_eth_sysctl_root_num, CTL_CREATE, CTL_EOL)) != 0) { goto err; } octeon_eth_sysctl_pipdynrs_num = node->sysctl_num; if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "redir", SYSCTL_DESCR("input port redirection"), octeon_eth_sysctl_verify, 0, &octeon_eth_param_redir, 0, CTL_HW, octeon_eth_sysctl_root_num, CTL_CREATE, CTL_EOL)) != 0) { goto err; } octeon_eth_sysctl_redir_num = node->sysctl_num; if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT, CTLTYPE_INT, "pkt_pool", SYSCTL_DESCR("packet pool available"), octeon_eth_sysctl_pool, 0, NULL, 0, CTL_HW, octeon_eth_sysctl_root_num, CTL_CREATE, CTL_EOL)) != 0) { goto err; } octeon_eth_sysctl_pkt_pool_num = node->sysctl_num; if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT, CTLTYPE_INT, "wqe_pool", SYSCTL_DESCR("wqe pool available"), octeon_eth_sysctl_pool, 0, NULL, 0, CTL_HW, octeon_eth_sysctl_root_num, CTL_CREATE, CTL_EOL)) != 0) { goto err; } octeon_eth_sysctl_wqe_pool_num = node->sysctl_num; if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT, CTLTYPE_INT, "cmd_pool", SYSCTL_DESCR("cmd pool available"), octeon_eth_sysctl_pool, 0, NULL, 0, CTL_HW, octeon_eth_sysctl_root_num, CTL_CREATE, CTL_EOL)) != 0) { goto err; } octeon_eth_sysctl_cmd_pool_num = node->sysctl_num; if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT, CTLTYPE_INT, "sg_pool", SYSCTL_DESCR("sg pool available"), octeon_eth_sysctl_pool, 0, NULL, 0, CTL_HW, octeon_eth_sysctl_root_num, CTL_CREATE, CTL_EOL)) != 0) { goto err; } octeon_eth_sysctl_sg_pool_num = node->sysctl_num; if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_INT, "pktbuf", SYSCTL_DESCR("input packet buffer size on POW"), octeon_eth_sysctl_rd, 0, &octeon_eth_param_pktbuf, 0, CTL_HW, octeon_eth_sysctl_root_num, CTL_CREATE, CTL_EOL)) != 0) { goto err; } octeon_eth_sysctl_pktbuf_num = node->sysctl_num; return; err: aprint_error("%s: syctl_createv failed (rc = %d)\n", __func__, rc); } static int octeon_eth_sysctl_verify(SYSCTLFN_ARGS) { int error, v; struct sysctlnode node; struct octeon_eth_softc *sc; int i; int s; node = *rnode; v = *(int *)rnode->sysctl_data; node.sysctl_data = &v; error = sysctl_lookup(SYSCTLFN_CALL(&node)); if (error || newp == NULL) return error; if (node.sysctl_num == octeon_eth_sysctl_pkocmdw0n2_num) { if (v < 0 || v > 1) return EINVAL; *(int *)rnode->sysctl_data = v; return 0; } if (node.sysctl_num == octeon_eth_sysctl_pipdynrs_num) { if (v < 0 || v > 1) return EINVAL; *(int *)rnode->sysctl_data = v; s = splnet(); for (i = 0; i < 3/* XXX */; i++) { sc = octeon_eth_gsc[i]; /* XXX */ octeon_pip_prt_cfg_enable(sc->sc_pip, PIP_PRT_CFGN_DYN_RS, v); } splx(s); return 0; } if (node.sysctl_num == octeon_eth_sysctl_redir_num) { if (v & ~((0x7 << (4 * 0)) | (0x7 << (4 * 1)) | (0x7 << (4 * 2)))) return EINVAL; *(int *)rnode->sysctl_data = v; s = splnet(); for (i = 0; i < 3/* XXX */; i++) { struct ifnet *ifp; sc = octeon_eth_gsc[i]; /* XXX */ ifp = &sc->sc_ethercom.ec_if; sc->sc_redir = (octeon_eth_param_redir >> (4 * i)) & 0x7; if (sc->sc_redir == 0) { if (ISSET(ifp->if_flags, IFF_PROMISC)) { CLR(ifp->if_flags, IFF_PROMISC); octeon_eth_mii_statchg(ifp); /* octeon_gmx_set_filter(sc->sc_gmx_port); */ } ifp->_if_input = ether_input; } else { if (!ISSET(ifp->if_flags, IFF_PROMISC)) { SET(ifp->if_flags, IFF_PROMISC); octeon_eth_mii_statchg(ifp); /* octeon_gmx_set_filter(sc->sc_gmx_port); */ } ifp->_if_input = octeon_eth_recv_redir; } } splx(s); return 0; } return EINVAL; } static int octeon_eth_sysctl_pool(SYSCTLFN_ARGS) { int error, newval = 0; struct sysctlnode node; int s; node = *rnode; node.sysctl_data = &newval; s = splnet(); if (node.sysctl_num == octeon_eth_sysctl_pkt_pool_num) { error = octeon_fpa_available_fpa_pool(&newval, OCTEON_POOL_NO_PKT); } else if (node.sysctl_num == octeon_eth_sysctl_wqe_pool_num) { error = octeon_fpa_available_fpa_pool(&newval, OCTEON_POOL_NO_WQE); } else if (node.sysctl_num == octeon_eth_sysctl_cmd_pool_num) { error = octeon_fpa_available_fpa_pool(&newval, OCTEON_POOL_NO_CMD); } else if (node.sysctl_num == octeon_eth_sysctl_sg_pool_num) { error = octeon_fpa_available_fpa_pool(&newval, OCTEON_POOL_NO_SG); } else { splx(s); return EINVAL; } splx(s); if (error) return error; error = sysctl_lookup(SYSCTLFN_CALL(&node)); if (error || newp == NULL) return error; return 0; } static int octeon_eth_sysctl_rd(SYSCTLFN_ARGS) { int error, v; struct sysctlnode node; int s; node = *rnode; v = *(int *)rnode->sysctl_data; node.sysctl_data = &v; error = sysctl_lookup(SYSCTLFN_CALL(&node)); if (error || newp != NULL) return error; if (node.sysctl_num == octeon_eth_sysctl_pktbuf_num) { uint64_t tmp; int n; s = splnet(); tmp = octeon_fpa_query(0); n = (int)tmp; splx(s); *(int *)rnode->sysctl_data = n; octeon_eth_param_pktbuf = n; *(int *)oldp = n; return 0; } return EINVAL; }