/* SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 2012-2018 Solarflare Communications Inc. * All rights reserved. */ #include "efx.h" #include "efx_impl.h" #if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2 static __checkReturn efx_rc_t efx_mcdi_init_rxq( __in efx_nic_t *enp, __in uint32_t ndescs, __in uint32_t target_evq, __in uint32_t label, __in uint32_t instance, __in efsys_mem_t *esmp, __in boolean_t disable_scatter, __in boolean_t want_inner_classes, __in uint32_t ps_bufsize, __in uint32_t es_bufs_per_desc, __in uint32_t es_max_dma_len, __in uint32_t es_buf_stride, __in uint32_t hol_block_timeout) { efx_nic_cfg_t *encp = &(enp->en_nic_cfg); efx_mcdi_req_t req; uint8_t payload[MAX(MC_CMD_INIT_RXQ_V3_IN_LEN, MC_CMD_INIT_RXQ_V3_OUT_LEN)]; int npages = EFX_RXQ_NBUFS(ndescs); int i; efx_qword_t *dma_addr; uint64_t addr; efx_rc_t rc; uint32_t dma_mode; boolean_t want_outer_classes; EFSYS_ASSERT3U(ndescs, <=, EFX_RXQ_MAXNDESCS); if ((esmp == NULL) || (EFSYS_MEM_SIZE(esmp) < EFX_RXQ_SIZE(ndescs))) { rc = EINVAL; goto fail1; } if (ps_bufsize > 0) dma_mode = MC_CMD_INIT_RXQ_EXT_IN_PACKED_STREAM; else if (es_bufs_per_desc > 0) dma_mode = MC_CMD_INIT_RXQ_V3_IN_EQUAL_STRIDE_SUPER_BUFFER; else dma_mode = MC_CMD_INIT_RXQ_EXT_IN_SINGLE_PACKET; if (encp->enc_tunnel_encapsulations_supported != 0 && !want_inner_classes) { /* * WANT_OUTER_CLASSES can only be specified on hardware which * supports tunnel encapsulation offloads, even though it is * effectively the behaviour the hardware gives. * * Also, on hardware which does support such offloads, older * firmware rejects the flag if the offloads are not supported * by the current firmware variant, which means this may fail if * the capabilities are not updated when the firmware variant * changes. This is not an issue on newer firmware, as it was * changed in bug 69842 (v6.4.2.1007) to permit this flag to be * specified on all firmware variants. */ want_outer_classes = B_TRUE; } else { want_outer_classes = B_FALSE; } (void) memset(payload, 0, sizeof (payload)); req.emr_cmd = MC_CMD_INIT_RXQ; req.emr_in_buf = payload; req.emr_in_length = MC_CMD_INIT_RXQ_V3_IN_LEN; req.emr_out_buf = payload; req.emr_out_length = MC_CMD_INIT_RXQ_V3_OUT_LEN; MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_SIZE, ndescs); MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_TARGET_EVQ, target_evq); MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_LABEL, label); MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_INSTANCE, instance); MCDI_IN_POPULATE_DWORD_9(req, INIT_RXQ_EXT_IN_FLAGS, INIT_RXQ_EXT_IN_FLAG_BUFF_MODE, 0, INIT_RXQ_EXT_IN_FLAG_HDR_SPLIT, 0, INIT_RXQ_EXT_IN_FLAG_TIMESTAMP, 0, INIT_RXQ_EXT_IN_CRC_MODE, 0, INIT_RXQ_EXT_IN_FLAG_PREFIX, 1, INIT_RXQ_EXT_IN_FLAG_DISABLE_SCATTER, disable_scatter, INIT_RXQ_EXT_IN_DMA_MODE, dma_mode, INIT_RXQ_EXT_IN_PACKED_STREAM_BUFF_SIZE, ps_bufsize, INIT_RXQ_EXT_IN_FLAG_WANT_OUTER_CLASSES, want_outer_classes); MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_OWNER_ID, 0); MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_PORT_ID, EVB_PORT_ID_ASSIGNED); if (es_bufs_per_desc > 0) { MCDI_IN_SET_DWORD(req, INIT_RXQ_V3_IN_ES_PACKET_BUFFERS_PER_BUCKET, es_bufs_per_desc); MCDI_IN_SET_DWORD(req, INIT_RXQ_V3_IN_ES_MAX_DMA_LEN, es_max_dma_len); MCDI_IN_SET_DWORD(req, INIT_RXQ_V3_IN_ES_PACKET_STRIDE, es_buf_stride); MCDI_IN_SET_DWORD(req, INIT_RXQ_V3_IN_ES_HEAD_OF_LINE_BLOCK_TIMEOUT, hol_block_timeout); } dma_addr = MCDI_IN2(req, efx_qword_t, INIT_RXQ_IN_DMA_ADDR); addr = EFSYS_MEM_ADDR(esmp); for (i = 0; i < npages; i++) { EFX_POPULATE_QWORD_2(*dma_addr, EFX_DWORD_1, (uint32_t)(addr >> 32), EFX_DWORD_0, (uint32_t)(addr & 0xffffffff)); dma_addr++; addr += EFX_BUF_SIZE; } efx_mcdi_execute(enp, &req); if (req.emr_rc != 0) { rc = req.emr_rc; goto fail2; } return (0); fail2: EFSYS_PROBE(fail2); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } static __checkReturn efx_rc_t efx_mcdi_fini_rxq( __in efx_nic_t *enp, __in uint32_t instance) { efx_mcdi_req_t req; uint8_t payload[MAX(MC_CMD_FINI_RXQ_IN_LEN, MC_CMD_FINI_RXQ_OUT_LEN)]; efx_rc_t rc; (void) memset(payload, 0, sizeof (payload)); req.emr_cmd = MC_CMD_FINI_RXQ; req.emr_in_buf = payload; req.emr_in_length = MC_CMD_FINI_RXQ_IN_LEN; req.emr_out_buf = payload; req.emr_out_length = MC_CMD_FINI_RXQ_OUT_LEN; MCDI_IN_SET_DWORD(req, FINI_RXQ_IN_INSTANCE, instance); efx_mcdi_execute_quiet(enp, &req); if (req.emr_rc != 0) { rc = req.emr_rc; goto fail1; } return (0); fail1: /* * EALREADY is not an error, but indicates that the MC has rebooted and * that the RXQ has already been destroyed. */ if (rc != EALREADY) EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } #if EFSYS_OPT_RX_SCALE static __checkReturn efx_rc_t efx_mcdi_rss_context_alloc( __in efx_nic_t *enp, __in efx_rx_scale_context_type_t type, __in uint32_t num_queues, __out uint32_t *rss_contextp) { efx_mcdi_req_t req; uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_ALLOC_IN_LEN, MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN)]; uint32_t rss_context; uint32_t context_type; efx_rc_t rc; if (num_queues > EFX_MAXRSS) { rc = EINVAL; goto fail1; } switch (type) { case EFX_RX_SCALE_EXCLUSIVE: context_type = MC_CMD_RSS_CONTEXT_ALLOC_IN_TYPE_EXCLUSIVE; break; case EFX_RX_SCALE_SHARED: context_type = MC_CMD_RSS_CONTEXT_ALLOC_IN_TYPE_SHARED; break; default: rc = EINVAL; goto fail2; } (void) memset(payload, 0, sizeof (payload)); req.emr_cmd = MC_CMD_RSS_CONTEXT_ALLOC; req.emr_in_buf = payload; req.emr_in_length = MC_CMD_RSS_CONTEXT_ALLOC_IN_LEN; req.emr_out_buf = payload; req.emr_out_length = MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN; MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_UPSTREAM_PORT_ID, EVB_PORT_ID_ASSIGNED); MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_TYPE, context_type); /* * For exclusive contexts, NUM_QUEUES is only used to validate * indirection table offsets. * For shared contexts, the provided context will spread traffic over * NUM_QUEUES many queues. */ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_NUM_QUEUES, num_queues); efx_mcdi_execute(enp, &req); if (req.emr_rc != 0) { rc = req.emr_rc; goto fail3; } if (req.emr_out_length_used < MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN) { rc = EMSGSIZE; goto fail4; } rss_context = MCDI_OUT_DWORD(req, RSS_CONTEXT_ALLOC_OUT_RSS_CONTEXT_ID); if (rss_context == EF10_RSS_CONTEXT_INVALID) { rc = ENOENT; goto fail5; } *rss_contextp = rss_context; return (0); fail5: EFSYS_PROBE(fail5); fail4: EFSYS_PROBE(fail4); fail3: EFSYS_PROBE(fail3); fail2: EFSYS_PROBE(fail2); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } #endif /* EFSYS_OPT_RX_SCALE */ #if EFSYS_OPT_RX_SCALE static efx_rc_t efx_mcdi_rss_context_free( __in efx_nic_t *enp, __in uint32_t rss_context) { efx_mcdi_req_t req; uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_FREE_IN_LEN, MC_CMD_RSS_CONTEXT_FREE_OUT_LEN)]; efx_rc_t rc; if (rss_context == EF10_RSS_CONTEXT_INVALID) { rc = EINVAL; goto fail1; } (void) memset(payload, 0, sizeof (payload)); req.emr_cmd = MC_CMD_RSS_CONTEXT_FREE; req.emr_in_buf = payload; req.emr_in_length = MC_CMD_RSS_CONTEXT_FREE_IN_LEN; req.emr_out_buf = payload; req.emr_out_length = MC_CMD_RSS_CONTEXT_FREE_OUT_LEN; MCDI_IN_SET_DWORD(req, RSS_CONTEXT_FREE_IN_RSS_CONTEXT_ID, rss_context); efx_mcdi_execute_quiet(enp, &req); if (req.emr_rc != 0) { rc = req.emr_rc; goto fail2; } return (0); fail2: EFSYS_PROBE(fail2); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } #endif /* EFSYS_OPT_RX_SCALE */ #if EFSYS_OPT_RX_SCALE static efx_rc_t efx_mcdi_rss_context_set_flags( __in efx_nic_t *enp, __in uint32_t rss_context, __in efx_rx_hash_type_t type) { efx_nic_cfg_t *encp = &enp->en_nic_cfg; efx_rx_hash_type_t type_ipv4; efx_rx_hash_type_t type_ipv4_tcp; efx_rx_hash_type_t type_ipv6; efx_rx_hash_type_t type_ipv6_tcp; efx_rx_hash_type_t modes; efx_mcdi_req_t req; uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_LEN, MC_CMD_RSS_CONTEXT_SET_FLAGS_OUT_LEN)]; efx_rc_t rc; EFX_STATIC_ASSERT(EFX_RX_CLASS_IPV4_TCP_LBN == MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_TCP_IPV4_RSS_MODE_LBN); EFX_STATIC_ASSERT(EFX_RX_CLASS_IPV4_TCP_WIDTH == MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_TCP_IPV4_RSS_MODE_WIDTH); EFX_STATIC_ASSERT(EFX_RX_CLASS_IPV4_LBN == MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_OTHER_IPV4_RSS_MODE_LBN); EFX_STATIC_ASSERT(EFX_RX_CLASS_IPV4_WIDTH == MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_OTHER_IPV4_RSS_MODE_WIDTH); EFX_STATIC_ASSERT(EFX_RX_CLASS_IPV6_TCP_LBN == MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_TCP_IPV6_RSS_MODE_LBN); EFX_STATIC_ASSERT(EFX_RX_CLASS_IPV6_TCP_WIDTH == MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_TCP_IPV6_RSS_MODE_WIDTH); EFX_STATIC_ASSERT(EFX_RX_CLASS_IPV6_LBN == MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_OTHER_IPV6_RSS_MODE_LBN); EFX_STATIC_ASSERT(EFX_RX_CLASS_IPV6_WIDTH == MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_OTHER_IPV6_RSS_MODE_WIDTH); if (rss_context == EF10_RSS_CONTEXT_INVALID) { rc = EINVAL; goto fail1; } (void) memset(payload, 0, sizeof (payload)); req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_FLAGS; req.emr_in_buf = payload; req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_LEN; req.emr_out_buf = payload; req.emr_out_length = MC_CMD_RSS_CONTEXT_SET_FLAGS_OUT_LEN; MCDI_IN_SET_DWORD(req, RSS_CONTEXT_SET_FLAGS_IN_RSS_CONTEXT_ID, rss_context); type_ipv4 = EFX_RX_HASH(IPV4, 2TUPLE) | EFX_RX_HASH(IPV4_TCP, 2TUPLE) | EFX_RX_HASH(IPV4_UDP, 2TUPLE); type_ipv4_tcp = EFX_RX_HASH(IPV4_TCP, 4TUPLE); type_ipv6 = EFX_RX_HASH(IPV6, 2TUPLE) | EFX_RX_HASH(IPV6_TCP, 2TUPLE) | EFX_RX_HASH(IPV6_UDP, 2TUPLE); type_ipv6_tcp = EFX_RX_HASH(IPV6_TCP, 4TUPLE); /* * Create a copy of the original hash type. * The copy will be used to fill in RSS_MODE bits and * may be cleared beforehand. The original variable * and, thus, EN bits will remain unaffected. */ modes = type; /* * If the firmware lacks support for additional modes, RSS_MODE * fields must contain zeros, otherwise the operation will fail. */ if (encp->enc_rx_scale_additional_modes_supported == B_FALSE) modes = 0; #define EXTRACT_RSS_MODE(_type, _class) \ (EFX_EXTRACT_NATIVE(_type, 0, 31, \ EFX_LOW_BIT(EFX_RX_CLASS_##_class), \ EFX_HIGH_BIT(EFX_RX_CLASS_##_class)) & \ EFX_MASK32(EFX_RX_CLASS_##_class)) MCDI_IN_POPULATE_DWORD_10(req, RSS_CONTEXT_SET_FLAGS_IN_FLAGS, RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_IPV4_EN, ((type & type_ipv4) == type_ipv4) ? 1 : 0, RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_TCPV4_EN, ((type & type_ipv4_tcp) == type_ipv4_tcp) ? 1 : 0, RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_IPV6_EN, ((type & type_ipv6) == type_ipv6) ? 1 : 0, RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_TCPV6_EN, ((type & type_ipv6_tcp) == type_ipv6_tcp) ? 1 : 0, RSS_CONTEXT_SET_FLAGS_IN_TCP_IPV4_RSS_MODE, EXTRACT_RSS_MODE(modes, IPV4_TCP), RSS_CONTEXT_SET_FLAGS_IN_UDP_IPV4_RSS_MODE, EXTRACT_RSS_MODE(modes, IPV4_UDP), RSS_CONTEXT_SET_FLAGS_IN_OTHER_IPV4_RSS_MODE, EXTRACT_RSS_MODE(modes, IPV4), RSS_CONTEXT_SET_FLAGS_IN_TCP_IPV6_RSS_MODE, EXTRACT_RSS_MODE(modes, IPV6_TCP), RSS_CONTEXT_SET_FLAGS_IN_UDP_IPV6_RSS_MODE, EXTRACT_RSS_MODE(modes, IPV6_UDP), RSS_CONTEXT_SET_FLAGS_IN_OTHER_IPV6_RSS_MODE, EXTRACT_RSS_MODE(modes, IPV6)); #undef EXTRACT_RSS_MODE efx_mcdi_execute(enp, &req); if (req.emr_rc != 0) { rc = req.emr_rc; goto fail2; } return (0); fail2: EFSYS_PROBE(fail2); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } #endif /* EFSYS_OPT_RX_SCALE */ #if EFSYS_OPT_RX_SCALE static efx_rc_t efx_mcdi_rss_context_set_key( __in efx_nic_t *enp, __in uint32_t rss_context, __in_ecount(n) uint8_t *key, __in size_t n) { efx_mcdi_req_t req; uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_KEY_IN_LEN, MC_CMD_RSS_CONTEXT_SET_KEY_OUT_LEN)]; efx_rc_t rc; if (rss_context == EF10_RSS_CONTEXT_INVALID) { rc = EINVAL; goto fail1; } (void) memset(payload, 0, sizeof (payload)); req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_KEY; req.emr_in_buf = payload; req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_KEY_IN_LEN; req.emr_out_buf = payload; req.emr_out_length = MC_CMD_RSS_CONTEXT_SET_KEY_OUT_LEN; MCDI_IN_SET_DWORD(req, RSS_CONTEXT_SET_KEY_IN_RSS_CONTEXT_ID, rss_context); EFSYS_ASSERT3U(n, ==, MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN); if (n != MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN) { rc = EINVAL; goto fail2; } memcpy(MCDI_IN2(req, uint8_t, RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY), key, n); efx_mcdi_execute(enp, &req); if (req.emr_rc != 0) { rc = req.emr_rc; goto fail3; } return (0); fail3: EFSYS_PROBE(fail3); fail2: EFSYS_PROBE(fail2); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } #endif /* EFSYS_OPT_RX_SCALE */ #if EFSYS_OPT_RX_SCALE static efx_rc_t efx_mcdi_rss_context_set_table( __in efx_nic_t *enp, __in uint32_t rss_context, __in_ecount(n) unsigned int *table, __in size_t n) { efx_mcdi_req_t req; uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_TABLE_IN_LEN, MC_CMD_RSS_CONTEXT_SET_TABLE_OUT_LEN)]; uint8_t *req_table; int i, rc; if (rss_context == EF10_RSS_CONTEXT_INVALID) { rc = EINVAL; goto fail1; } (void) memset(payload, 0, sizeof (payload)); req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_TABLE; req.emr_in_buf = payload; req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_TABLE_IN_LEN; req.emr_out_buf = payload; req.emr_out_length = MC_CMD_RSS_CONTEXT_SET_TABLE_OUT_LEN; MCDI_IN_SET_DWORD(req, RSS_CONTEXT_SET_TABLE_IN_RSS_CONTEXT_ID, rss_context); req_table = MCDI_IN2(req, uint8_t, RSS_CONTEXT_SET_TABLE_IN_INDIRECTION_TABLE); for (i = 0; i < MC_CMD_RSS_CONTEXT_SET_TABLE_IN_INDIRECTION_TABLE_LEN; i++) { req_table[i] = (n > 0) ? (uint8_t)table[i % n] : 0; } efx_mcdi_execute(enp, &req); if (req.emr_rc != 0) { rc = req.emr_rc; goto fail2; } return (0); fail2: EFSYS_PROBE(fail2); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } #endif /* EFSYS_OPT_RX_SCALE */ __checkReturn efx_rc_t ef10_rx_init( __in efx_nic_t *enp) { #if EFSYS_OPT_RX_SCALE if (efx_mcdi_rss_context_alloc(enp, EFX_RX_SCALE_EXCLUSIVE, EFX_MAXRSS, &enp->en_rss_context) == 0) { /* * Allocated an exclusive RSS context, which allows both the * indirection table and key to be modified. */ enp->en_rss_context_type = EFX_RX_SCALE_EXCLUSIVE; enp->en_hash_support = EFX_RX_HASH_AVAILABLE; } else { /* * Failed to allocate an exclusive RSS context. Continue * operation without support for RSS. The pseudo-header in * received packets will not contain a Toeplitz hash value. */ enp->en_rss_context_type = EFX_RX_SCALE_UNAVAILABLE; enp->en_hash_support = EFX_RX_HASH_UNAVAILABLE; } #endif /* EFSYS_OPT_RX_SCALE */ return (0); } #if EFSYS_OPT_RX_SCATTER __checkReturn efx_rc_t ef10_rx_scatter_enable( __in efx_nic_t *enp, __in unsigned int buf_size) { _NOTE(ARGUNUSED(enp, buf_size)) return (0); } #endif /* EFSYS_OPT_RX_SCATTER */ #if EFSYS_OPT_RX_SCALE __checkReturn efx_rc_t ef10_rx_scale_context_alloc( __in efx_nic_t *enp, __in efx_rx_scale_context_type_t type, __in uint32_t num_queues, __out uint32_t *rss_contextp) { efx_rc_t rc; rc = efx_mcdi_rss_context_alloc(enp, type, num_queues, rss_contextp); if (rc != 0) goto fail1; return (0); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } #endif /* EFSYS_OPT_RX_SCALE */ #if EFSYS_OPT_RX_SCALE __checkReturn efx_rc_t ef10_rx_scale_context_free( __in efx_nic_t *enp, __in uint32_t rss_context) { efx_rc_t rc; rc = efx_mcdi_rss_context_free(enp, rss_context); if (rc != 0) goto fail1; return (0); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } #endif /* EFSYS_OPT_RX_SCALE */ #if EFSYS_OPT_RX_SCALE __checkReturn efx_rc_t ef10_rx_scale_mode_set( __in efx_nic_t *enp, __in uint32_t rss_context, __in efx_rx_hash_alg_t alg, __in efx_rx_hash_type_t type, __in boolean_t insert) { efx_nic_cfg_t *encp = &enp->en_nic_cfg; efx_rc_t rc; EFSYS_ASSERT3U(insert, ==, B_TRUE); if ((encp->enc_rx_scale_hash_alg_mask & (1U << alg)) == 0 || insert == B_FALSE) { rc = EINVAL; goto fail1; } if (rss_context == EFX_RSS_CONTEXT_DEFAULT) { if (enp->en_rss_context_type == EFX_RX_SCALE_UNAVAILABLE) { rc = ENOTSUP; goto fail2; } rss_context = enp->en_rss_context; } if ((rc = efx_mcdi_rss_context_set_flags(enp, rss_context, type)) != 0) goto fail3; return (0); fail3: EFSYS_PROBE(fail3); fail2: EFSYS_PROBE(fail2); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } #endif /* EFSYS_OPT_RX_SCALE */ #if EFSYS_OPT_RX_SCALE __checkReturn efx_rc_t ef10_rx_scale_key_set( __in efx_nic_t *enp, __in uint32_t rss_context, __in_ecount(n) uint8_t *key, __in size_t n) { efx_rc_t rc; EFX_STATIC_ASSERT(EFX_RSS_KEY_SIZE == MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN); if (rss_context == EFX_RSS_CONTEXT_DEFAULT) { if (enp->en_rss_context_type == EFX_RX_SCALE_UNAVAILABLE) { rc = ENOTSUP; goto fail1; } rss_context = enp->en_rss_context; } if ((rc = efx_mcdi_rss_context_set_key(enp, rss_context, key, n)) != 0) goto fail2; return (0); fail2: EFSYS_PROBE(fail2); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } #endif /* EFSYS_OPT_RX_SCALE */ #if EFSYS_OPT_RX_SCALE __checkReturn efx_rc_t ef10_rx_scale_tbl_set( __in efx_nic_t *enp, __in uint32_t rss_context, __in_ecount(n) unsigned int *table, __in size_t n) { efx_rc_t rc; if (rss_context == EFX_RSS_CONTEXT_DEFAULT) { if (enp->en_rss_context_type == EFX_RX_SCALE_UNAVAILABLE) { rc = ENOTSUP; goto fail1; } rss_context = enp->en_rss_context; } if ((rc = efx_mcdi_rss_context_set_table(enp, rss_context, table, n)) != 0) goto fail2; return (0); fail2: EFSYS_PROBE(fail2); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } #endif /* EFSYS_OPT_RX_SCALE */ /* * EF10 RX pseudo-header * --------------------- * * Receive packets are prefixed by an (optional) 14 byte pseudo-header: * * +00: Toeplitz hash value. * (32bit little-endian) * +04: Outer VLAN tag. Zero if the packet did not have an outer VLAN tag. * (16bit big-endian) * +06: Inner VLAN tag. Zero if the packet did not have an inner VLAN tag. * (16bit big-endian) * +08: Packet Length. Zero if the RX datapath was in cut-through mode. * (16bit little-endian) * +10: MAC timestamp. Zero if timestamping is not enabled. * (32bit little-endian) * * See "The RX Pseudo-header" in SF-109306-TC. */ __checkReturn efx_rc_t ef10_rx_prefix_pktlen( __in efx_nic_t *enp, __in uint8_t *buffer, __out uint16_t *lengthp) { _NOTE(ARGUNUSED(enp)) /* * The RX pseudo-header contains the packet length, excluding the * pseudo-header. If the hardware receive datapath was operating in * cut-through mode then the length in the RX pseudo-header will be * zero, and the packet length must be obtained from the DMA length * reported in the RX event. */ *lengthp = buffer[8] | (buffer[9] << 8); return (0); } #if EFSYS_OPT_RX_SCALE __checkReturn uint32_t ef10_rx_prefix_hash( __in efx_nic_t *enp, __in efx_rx_hash_alg_t func, __in uint8_t *buffer) { _NOTE(ARGUNUSED(enp)) switch (func) { case EFX_RX_HASHALG_PACKED_STREAM: case EFX_RX_HASHALG_TOEPLITZ: return (buffer[0] | (buffer[1] << 8) | (buffer[2] << 16) | (buffer[3] << 24)); default: EFSYS_ASSERT(0); return (0); } } #endif /* EFSYS_OPT_RX_SCALE */ #if EFSYS_OPT_RX_PACKED_STREAM /* * Fake length for RXQ descriptors in packed stream mode * to make hardware happy */ #define EFX_RXQ_PACKED_STREAM_FAKE_BUF_SIZE 32 #endif void ef10_rx_qpost( __in efx_rxq_t *erp, __in_ecount(ndescs) efsys_dma_addr_t *addrp, __in size_t size, __in unsigned int ndescs, __in unsigned int completed, __in unsigned int added) { efx_qword_t qword; unsigned int i; unsigned int offset; unsigned int id; _NOTE(ARGUNUSED(completed)) #if EFSYS_OPT_RX_PACKED_STREAM /* * Real size of the buffer does not fit into ESF_DZ_RX_KER_BYTE_CNT * and equal to 0 after applying mask. Hardware does not like it. */ if (erp->er_ev_qstate->eers_rx_packed_stream) size = EFX_RXQ_PACKED_STREAM_FAKE_BUF_SIZE; #endif /* The client driver must not overfill the queue */ EFSYS_ASSERT3U(added - completed + ndescs, <=, EFX_RXQ_LIMIT(erp->er_mask + 1)); id = added & (erp->er_mask); for (i = 0; i < ndescs; i++) { EFSYS_PROBE4(rx_post, unsigned int, erp->er_index, unsigned int, id, efsys_dma_addr_t, addrp[i], size_t, size); EFX_POPULATE_QWORD_3(qword, ESF_DZ_RX_KER_BYTE_CNT, (uint32_t)(size), ESF_DZ_RX_KER_BUF_ADDR_DW0, (uint32_t)(addrp[i] & 0xffffffff), ESF_DZ_RX_KER_BUF_ADDR_DW1, (uint32_t)(addrp[i] >> 32)); offset = id * sizeof (efx_qword_t); EFSYS_MEM_WRITEQ(erp->er_esmp, offset, &qword); id = (id + 1) & (erp->er_mask); } } void ef10_rx_qpush( __in efx_rxq_t *erp, __in unsigned int added, __inout unsigned int *pushedp) { efx_nic_t *enp = erp->er_enp; unsigned int pushed = *pushedp; uint32_t wptr; efx_dword_t dword; /* Hardware has alignment restriction for WPTR */ wptr = P2ALIGN(added, EF10_RX_WPTR_ALIGN); if (pushed == wptr) return; *pushedp = wptr; /* Push the populated descriptors out */ wptr &= erp->er_mask; EFX_POPULATE_DWORD_1(dword, ERF_DZ_RX_DESC_WPTR, wptr); /* Guarantee ordering of memory (descriptors) and PIO (doorbell) */ EFX_DMA_SYNC_QUEUE_FOR_DEVICE(erp->er_esmp, erp->er_mask + 1, wptr, pushed & erp->er_mask); EFSYS_PIO_WRITE_BARRIER(); EFX_BAR_VI_WRITED(enp, ER_DZ_RX_DESC_UPD_REG, erp->er_index, &dword, B_FALSE); } #if EFSYS_OPT_RX_PACKED_STREAM void ef10_rx_qpush_ps_credits( __in efx_rxq_t *erp) { efx_nic_t *enp = erp->er_enp; efx_dword_t dword; efx_evq_rxq_state_t *rxq_state = erp->er_ev_qstate; uint32_t credits; EFSYS_ASSERT(rxq_state->eers_rx_packed_stream); if (rxq_state->eers_rx_packed_stream_credits == 0) return; /* * It is a bug if we think that FW has utilized more * credits than it is allowed to have (maximum). However, * make sure that we do not credit more than maximum anyway. */ credits = MIN(rxq_state->eers_rx_packed_stream_credits, EFX_RX_PACKED_STREAM_MAX_CREDITS); EFX_POPULATE_DWORD_3(dword, ERF_DZ_RX_DESC_MAGIC_DOORBELL, 1, ERF_DZ_RX_DESC_MAGIC_CMD, ERE_DZ_RX_DESC_MAGIC_CMD_PS_CREDITS, ERF_DZ_RX_DESC_MAGIC_DATA, credits); EFX_BAR_VI_WRITED(enp, ER_DZ_RX_DESC_UPD_REG, erp->er_index, &dword, B_FALSE); rxq_state->eers_rx_packed_stream_credits = 0; } /* * In accordance with SF-112241-TC the received data has the following layout: * - 8 byte pseudo-header which consist of: * - 4 byte little-endian timestamp * - 2 byte little-endian captured length in bytes * - 2 byte little-endian original packet length in bytes * - captured packet bytes * - optional padding to align to 64 bytes boundary * - 64 bytes scratch space for the host software */ __checkReturn uint8_t * ef10_rx_qps_packet_info( __in efx_rxq_t *erp, __in uint8_t *buffer, __in uint32_t buffer_length, __in uint32_t current_offset, __out uint16_t *lengthp, __out uint32_t *next_offsetp, __out uint32_t *timestamp) { uint16_t buf_len; uint8_t *pkt_start; efx_qword_t *qwordp; efx_evq_rxq_state_t *rxq_state = erp->er_ev_qstate; EFSYS_ASSERT(rxq_state->eers_rx_packed_stream); buffer += current_offset; pkt_start = buffer + EFX_RX_PACKED_STREAM_RX_PREFIX_SIZE; qwordp = (efx_qword_t *)buffer; *timestamp = EFX_QWORD_FIELD(*qwordp, ES_DZ_PS_RX_PREFIX_TSTAMP); *lengthp = EFX_QWORD_FIELD(*qwordp, ES_DZ_PS_RX_PREFIX_ORIG_LEN); buf_len = EFX_QWORD_FIELD(*qwordp, ES_DZ_PS_RX_PREFIX_CAP_LEN); buf_len = P2ROUNDUP(buf_len + EFX_RX_PACKED_STREAM_RX_PREFIX_SIZE, EFX_RX_PACKED_STREAM_ALIGNMENT); *next_offsetp = current_offset + buf_len + EFX_RX_PACKED_STREAM_ALIGNMENT; EFSYS_ASSERT3U(*next_offsetp, <=, buffer_length); EFSYS_ASSERT3U(current_offset + *lengthp, <, *next_offsetp); if ((*next_offsetp ^ current_offset) & EFX_RX_PACKED_STREAM_MEM_PER_CREDIT) rxq_state->eers_rx_packed_stream_credits++; return (pkt_start); } #endif __checkReturn efx_rc_t ef10_rx_qflush( __in efx_rxq_t *erp) { efx_nic_t *enp = erp->er_enp; efx_rc_t rc; if ((rc = efx_mcdi_fini_rxq(enp, erp->er_index)) != 0) goto fail1; return (0); fail1: /* * EALREADY is not an error, but indicates that the MC has rebooted and * that the RXQ has already been destroyed. Callers need to know that * the RXQ flush has completed to avoid waiting until timeout for a * flush done event that will not be delivered. */ if (rc != EALREADY) EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } void ef10_rx_qenable( __in efx_rxq_t *erp) { /* FIXME */ _NOTE(ARGUNUSED(erp)) /* FIXME */ } __checkReturn efx_rc_t ef10_rx_qcreate( __in efx_nic_t *enp, __in unsigned int index, __in unsigned int label, __in efx_rxq_type_t type, __in const efx_rxq_type_data_t *type_data, __in efsys_mem_t *esmp, __in size_t ndescs, __in uint32_t id, __in unsigned int flags, __in efx_evq_t *eep, __in efx_rxq_t *erp) { efx_nic_cfg_t *encp = &(enp->en_nic_cfg); efx_rc_t rc; boolean_t disable_scatter; boolean_t want_inner_classes; unsigned int ps_buf_size; uint32_t es_bufs_per_desc = 0; uint32_t es_max_dma_len = 0; uint32_t es_buf_stride = 0; uint32_t hol_block_timeout = 0; _NOTE(ARGUNUSED(id, erp, type_data)) EFX_STATIC_ASSERT(EFX_EV_RX_NLABELS == (1 << ESF_DZ_RX_QLABEL_WIDTH)); EFSYS_ASSERT3U(label, <, EFX_EV_RX_NLABELS); EFSYS_ASSERT3U(enp->en_rx_qcount + 1, <, encp->enc_rxq_limit); EFX_STATIC_ASSERT(ISP2(EFX_RXQ_MAXNDESCS)); EFX_STATIC_ASSERT(ISP2(EFX_RXQ_MINNDESCS)); if (!ISP2(ndescs) || (ndescs < EFX_RXQ_MINNDESCS) || (ndescs > EFX_RXQ_MAXNDESCS)) { rc = EINVAL; goto fail1; } if (index >= encp->enc_rxq_limit) { rc = EINVAL; goto fail2; } switch (type) { case EFX_RXQ_TYPE_DEFAULT: ps_buf_size = 0; break; #if EFSYS_OPT_RX_PACKED_STREAM case EFX_RXQ_TYPE_PACKED_STREAM: switch (type_data->ertd_packed_stream.eps_buf_size) { case EFX_RXQ_PACKED_STREAM_BUF_SIZE_1M: ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_1M; break; case EFX_RXQ_PACKED_STREAM_BUF_SIZE_512K: ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_512K; break; case EFX_RXQ_PACKED_STREAM_BUF_SIZE_256K: ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_256K; break; case EFX_RXQ_PACKED_STREAM_BUF_SIZE_128K: ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_128K; break; case EFX_RXQ_PACKED_STREAM_BUF_SIZE_64K: ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_64K; break; default: rc = ENOTSUP; goto fail3; } break; #endif /* EFSYS_OPT_RX_PACKED_STREAM */ #if EFSYS_OPT_RX_ES_SUPER_BUFFER case EFX_RXQ_TYPE_ES_SUPER_BUFFER: ps_buf_size = 0; es_bufs_per_desc = type_data->ertd_es_super_buffer.eessb_bufs_per_desc; es_max_dma_len = type_data->ertd_es_super_buffer.eessb_max_dma_len; es_buf_stride = type_data->ertd_es_super_buffer.eessb_buf_stride; hol_block_timeout = type_data->ertd_es_super_buffer.eessb_hol_block_timeout; break; #endif /* EFSYS_OPT_RX_ES_SUPER_BUFFER */ default: rc = ENOTSUP; goto fail4; } #if EFSYS_OPT_RX_PACKED_STREAM if (ps_buf_size != 0) { /* Check if datapath firmware supports packed stream mode */ if (encp->enc_rx_packed_stream_supported == B_FALSE) { rc = ENOTSUP; goto fail5; } /* Check if packed stream allows configurable buffer sizes */ if ((ps_buf_size != MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_1M) && (encp->enc_rx_var_packed_stream_supported == B_FALSE)) { rc = ENOTSUP; goto fail6; } } #else /* EFSYS_OPT_RX_PACKED_STREAM */ EFSYS_ASSERT(ps_buf_size == 0); #endif /* EFSYS_OPT_RX_PACKED_STREAM */ #if EFSYS_OPT_RX_ES_SUPER_BUFFER if (es_bufs_per_desc > 0) { if (encp->enc_rx_es_super_buffer_supported == B_FALSE) { rc = ENOTSUP; goto fail7; } if (!IS_P2ALIGNED(es_max_dma_len, EFX_RX_ES_SUPER_BUFFER_BUF_ALIGNMENT)) { rc = EINVAL; goto fail8; } if (!IS_P2ALIGNED(es_buf_stride, EFX_RX_ES_SUPER_BUFFER_BUF_ALIGNMENT)) { rc = EINVAL; goto fail9; } } #else /* EFSYS_OPT_RX_ES_SUPER_BUFFER */ EFSYS_ASSERT(es_bufs_per_desc == 0); #endif /* EFSYS_OPT_RX_ES_SUPER_BUFFER */ /* Scatter can only be disabled if the firmware supports doing so */ if (flags & EFX_RXQ_FLAG_SCATTER) disable_scatter = B_FALSE; else disable_scatter = encp->enc_rx_disable_scatter_supported; if (flags & EFX_RXQ_FLAG_INNER_CLASSES) want_inner_classes = B_TRUE; else want_inner_classes = B_FALSE; if ((rc = efx_mcdi_init_rxq(enp, ndescs, eep->ee_index, label, index, esmp, disable_scatter, want_inner_classes, ps_buf_size, es_bufs_per_desc, es_max_dma_len, es_buf_stride, hol_block_timeout)) != 0) goto fail10; erp->er_eep = eep; erp->er_label = label; ef10_ev_rxlabel_init(eep, erp, label, type); erp->er_ev_qstate = &erp->er_eep->ee_rxq_state[label]; return (0); fail10: EFSYS_PROBE(fail10); #if EFSYS_OPT_RX_ES_SUPER_BUFFER fail9: EFSYS_PROBE(fail9); fail8: EFSYS_PROBE(fail8); fail7: EFSYS_PROBE(fail7); #endif /* EFSYS_OPT_RX_ES_SUPER_BUFFER */ #if EFSYS_OPT_RX_PACKED_STREAM fail6: EFSYS_PROBE(fail6); fail5: EFSYS_PROBE(fail5); #endif /* EFSYS_OPT_RX_PACKED_STREAM */ fail4: EFSYS_PROBE(fail4); #if EFSYS_OPT_RX_PACKED_STREAM fail3: EFSYS_PROBE(fail3); #endif /* EFSYS_OPT_RX_PACKED_STREAM */ fail2: EFSYS_PROBE(fail2); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } void ef10_rx_qdestroy( __in efx_rxq_t *erp) { efx_nic_t *enp = erp->er_enp; efx_evq_t *eep = erp->er_eep; unsigned int label = erp->er_label; ef10_ev_rxlabel_fini(eep, label); EFSYS_ASSERT(enp->en_rx_qcount != 0); --enp->en_rx_qcount; EFSYS_KMEM_FREE(enp->en_esip, sizeof (efx_rxq_t), erp); } void ef10_rx_fini( __in efx_nic_t *enp) { #if EFSYS_OPT_RX_SCALE if (enp->en_rss_context_type != EFX_RX_SCALE_UNAVAILABLE) (void) efx_mcdi_rss_context_free(enp, enp->en_rss_context); enp->en_rss_context = 0; enp->en_rss_context_type = EFX_RX_SCALE_UNAVAILABLE; #else _NOTE(ARGUNUSED(enp)) #endif /* EFSYS_OPT_RX_SCALE */ } #endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2 */