From: Beilei Xing Date: Fri, 9 Jun 2017 08:21:20 +0000 (+0800) Subject: net/i40e: support flexible payload parsing for FDIR X-Git-Tag: spdx-start~3041 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=6ced3dd72f5f;p=dpdk.git net/i40e: support flexible payload parsing for FDIR This patch adds flexible payload parsing support for flow director filter. Signed-off-by: Beilei Xing Acked-by: Wenzhuo Lu --- diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h index f2afe668da..3255d2e62c 100644 --- a/drivers/net/i40e/i40e_ethdev.h +++ b/drivers/net/i40e/i40e_ethdev.h @@ -431,6 +431,24 @@ struct i40e_vmdq_info { struct i40e_vsi *vsi; }; +#define I40E_FDIR_MAX_FLEXLEN 16 /**< Max length of flexbytes. */ +#define I40E_MAX_FLX_SOURCE_OFF 480 +#define NONUSE_FLX_PIT_DEST_OFF 63 +#define NONUSE_FLX_PIT_FSIZE 1 +#define I40E_FLX_OFFSET_IN_FIELD_VECTOR 50 +#define MK_FLX_PIT(src_offset, fsize, dst_offset) ( \ + (((src_offset) << I40E_PRTQF_FLX_PIT_SOURCE_OFF_SHIFT) & \ + I40E_PRTQF_FLX_PIT_SOURCE_OFF_MASK) | \ + (((fsize) << I40E_PRTQF_FLX_PIT_FSIZE_SHIFT) & \ + I40E_PRTQF_FLX_PIT_FSIZE_MASK) | \ + ((((dst_offset) == NONUSE_FLX_PIT_DEST_OFF ? \ + NONUSE_FLX_PIT_DEST_OFF : \ + ((dst_offset) + I40E_FLX_OFFSET_IN_FIELD_VECTOR)) << \ + I40E_PRTQF_FLX_PIT_DEST_OFF_SHIFT) & \ + I40E_PRTQF_FLX_PIT_DEST_OFF_MASK)) +#define I40E_WORD(hi, lo) (uint16_t)((((hi) << 8) & 0xFF00) | ((lo) & 0xFF)) +#define I40E_FLEX_WORD_MASK(off) (0x80 >> (off)) + /* * Structure to store flex pit for flow diretor. */ @@ -442,6 +460,7 @@ struct i40e_fdir_flex_pit { struct i40e_fdir_flex_mask { uint8_t word_mask; /**< Bit i enables word i of flexible payload */ + uint8_t nb_bitmask; struct { uint8_t offset; uint16_t mask; @@ -479,6 +498,10 @@ struct i40e_fdir_info { struct i40e_fdir_filter_list fdir_list; struct i40e_fdir_filter **hash_map; struct rte_hash *hash_table; + + /* Mark if flex pit and mask is set */ + bool flex_pit_flag[I40E_MAX_FLXPLD_LAYER]; + bool flex_mask_flag[I40E_FILTER_PCTYPE_MAX]; }; /* Ethertype filter number HW supports */ diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c index 9c1ab6e9a8..ca423d9a53 100644 --- a/drivers/net/i40e/i40e_fdir.c +++ b/drivers/net/i40e/i40e_fdir.c @@ -83,21 +83,6 @@ #define I40E_COUNTER_PF 2 /* Statistic counter index for one pf */ #define I40E_COUNTER_INDEX_FDIR(pf_id) (0 + (pf_id) * I40E_COUNTER_PF) -#define I40E_MAX_FLX_SOURCE_OFF 480 -#define I40E_FLX_OFFSET_IN_FIELD_VECTOR 50 - -#define NONUSE_FLX_PIT_DEST_OFF 63 -#define NONUSE_FLX_PIT_FSIZE 1 -#define MK_FLX_PIT(src_offset, fsize, dst_offset) ( \ - (((src_offset) << I40E_PRTQF_FLX_PIT_SOURCE_OFF_SHIFT) & \ - I40E_PRTQF_FLX_PIT_SOURCE_OFF_MASK) | \ - (((fsize) << I40E_PRTQF_FLX_PIT_FSIZE_SHIFT) & \ - I40E_PRTQF_FLX_PIT_FSIZE_MASK) | \ - ((((dst_offset) == NONUSE_FLX_PIT_DEST_OFF ? \ - NONUSE_FLX_PIT_DEST_OFF : \ - ((dst_offset) + I40E_FLX_OFFSET_IN_FIELD_VECTOR)) << \ - I40E_PRTQF_FLX_PIT_DEST_OFF_SHIFT) & \ - I40E_PRTQF_FLX_PIT_DEST_OFF_MASK)) #define I40E_FDIR_FLOWS ( \ (1 << RTE_ETH_FLOW_FRAG_IPV4) | \ @@ -112,8 +97,6 @@ (1 << RTE_ETH_FLOW_NONFRAG_IPV6_OTHER) | \ (1 << RTE_ETH_FLOW_L2_PAYLOAD)) -#define I40E_FLEX_WORD_MASK(off) (0x80 >> (off)) - static int i40e_fdir_filter_programming(struct i40e_pf *pf, enum i40e_filter_pctype pctype, const struct rte_eth_fdir_filter *filter, @@ -381,8 +364,6 @@ i40e_init_flx_pld(struct i40e_pf *pf) } } -#define I40E_WORD(hi, lo) (uint16_t)((((hi) << 8) & 0xFF00) | ((lo) & 0xFF)) - #define I40E_VALIDATE_FLEX_PIT(flex_pit1, flex_pit2) do { \ if ((flex_pit2).src_offset < \ (flex_pit1).src_offset + (flex_pit1).size) { \ diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c index fab4a0d430..710ab8991d 100644 --- a/drivers/net/i40e/i40e_flow.c +++ b/drivers/net/i40e/i40e_flow.c @@ -747,12 +747,191 @@ i40e_flow_parse_ethertype_filter(struct rte_eth_dev *dev, return ret; } +static int +i40e_flow_check_raw_item(const struct rte_flow_item *item, + const struct rte_flow_item_raw *raw_spec, + struct rte_flow_error *error) +{ + if (!raw_spec->relative) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Relative should be 1."); + return -rte_errno; + } + + if (raw_spec->offset % sizeof(uint16_t)) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Offset should be even."); + return -rte_errno; + } + + if (raw_spec->search || raw_spec->limit) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "search or limit is not supported."); + return -rte_errno; + } + + if (raw_spec->offset < 0) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Offset should be non-negative."); + return -rte_errno; + } + return 0; +} + +static int +i40e_flow_store_flex_pit(struct i40e_pf *pf, + struct i40e_fdir_flex_pit *flex_pit, + enum i40e_flxpld_layer_idx layer_idx, + uint8_t raw_id) +{ + uint8_t field_idx; + + field_idx = layer_idx * I40E_MAX_FLXPLD_FIED + raw_id; + /* Check if the configuration is conflicted */ + if (pf->fdir.flex_pit_flag[layer_idx] && + (pf->fdir.flex_set[field_idx].src_offset != flex_pit->src_offset || + pf->fdir.flex_set[field_idx].size != flex_pit->size || + pf->fdir.flex_set[field_idx].dst_offset != flex_pit->dst_offset)) + return -1; + + /* Check if the configuration exists. */ + if (pf->fdir.flex_pit_flag[layer_idx] && + (pf->fdir.flex_set[field_idx].src_offset == flex_pit->src_offset && + pf->fdir.flex_set[field_idx].size == flex_pit->size && + pf->fdir.flex_set[field_idx].dst_offset == flex_pit->dst_offset)) + return 1; + + pf->fdir.flex_set[field_idx].src_offset = + flex_pit->src_offset; + pf->fdir.flex_set[field_idx].size = + flex_pit->size; + pf->fdir.flex_set[field_idx].dst_offset = + flex_pit->dst_offset; + + return 0; +} + +static int +i40e_flow_store_flex_mask(struct i40e_pf *pf, + enum i40e_filter_pctype pctype, + uint8_t *mask) +{ + struct i40e_fdir_flex_mask flex_mask; + uint16_t mask_tmp; + uint8_t i, nb_bitmask = 0; + + memset(&flex_mask, 0, sizeof(struct i40e_fdir_flex_mask)); + for (i = 0; i < I40E_FDIR_MAX_FLEX_LEN; i += sizeof(uint16_t)) { + mask_tmp = I40E_WORD(mask[i], mask[i + 1]); + if (mask_tmp) { + flex_mask.word_mask |= + I40E_FLEX_WORD_MASK(i / sizeof(uint16_t)); + if (mask_tmp != UINT16_MAX) { + flex_mask.bitmask[nb_bitmask].mask = ~mask_tmp; + flex_mask.bitmask[nb_bitmask].offset = + i / sizeof(uint16_t); + nb_bitmask++; + if (nb_bitmask > I40E_FDIR_BITMASK_NUM_WORD) + return -1; + } + } + } + flex_mask.nb_bitmask = nb_bitmask; + + if (pf->fdir.flex_mask_flag[pctype] && + (memcmp(&flex_mask, &pf->fdir.flex_mask[pctype], + sizeof(struct i40e_fdir_flex_mask)))) + return -2; + else if (pf->fdir.flex_mask_flag[pctype] && + !(memcmp(&flex_mask, &pf->fdir.flex_mask[pctype], + sizeof(struct i40e_fdir_flex_mask)))) + return 1; + + memcpy(&pf->fdir.flex_mask[pctype], &flex_mask, + sizeof(struct i40e_fdir_flex_mask)); + return 0; +} + +static void +i40e_flow_set_fdir_flex_pit(struct i40e_pf *pf, + enum i40e_flxpld_layer_idx layer_idx, + uint8_t raw_id) +{ + struct i40e_hw *hw = I40E_PF_TO_HW(pf); + uint32_t flx_pit; + uint8_t field_idx; + uint16_t min_next_off = 0; /* in words */ + uint8_t i; + + /* Set flex pit */ + for (i = 0; i < raw_id; i++) { + field_idx = layer_idx * I40E_MAX_FLXPLD_FIED + i; + flx_pit = MK_FLX_PIT(pf->fdir.flex_set[field_idx].src_offset, + pf->fdir.flex_set[field_idx].size, + pf->fdir.flex_set[field_idx].dst_offset); + + I40E_WRITE_REG(hw, I40E_PRTQF_FLX_PIT(field_idx), flx_pit); + min_next_off = pf->fdir.flex_set[field_idx].src_offset + + pf->fdir.flex_set[field_idx].size; + } + + for (; i < I40E_MAX_FLXPLD_FIED; i++) { + /* set the non-used register obeying register's constrain */ + field_idx = layer_idx * I40E_MAX_FLXPLD_FIED + i; + flx_pit = MK_FLX_PIT(min_next_off, NONUSE_FLX_PIT_FSIZE, + NONUSE_FLX_PIT_DEST_OFF); + I40E_WRITE_REG(hw, I40E_PRTQF_FLX_PIT(field_idx), flx_pit); + min_next_off++; + } + + pf->fdir.flex_pit_flag[layer_idx] = 1; +} + +static void +i40e_flow_set_fdir_flex_msk(struct i40e_pf *pf, + enum i40e_filter_pctype pctype) +{ + struct i40e_hw *hw = I40E_PF_TO_HW(pf); + struct i40e_fdir_flex_mask *flex_mask; + uint32_t flxinset, fd_mask; + uint8_t i; + + /* Set flex mask */ + flex_mask = &pf->fdir.flex_mask[pctype]; + flxinset = (flex_mask->word_mask << + I40E_PRTQF_FD_FLXINSET_INSET_SHIFT) & + I40E_PRTQF_FD_FLXINSET_INSET_MASK; + i40e_write_rx_ctl(hw, I40E_PRTQF_FD_FLXINSET(pctype), flxinset); + + for (i = 0; i < flex_mask->nb_bitmask; i++) { + fd_mask = (flex_mask->bitmask[i].mask << + I40E_PRTQF_FD_MSK_MASK_SHIFT) & + I40E_PRTQF_FD_MSK_MASK_MASK; + fd_mask |= ((flex_mask->bitmask[i].offset + + I40E_FLX_OFFSET_IN_FIELD_VECTOR) << + I40E_PRTQF_FD_MSK_OFFSET_SHIFT) & + I40E_PRTQF_FD_MSK_OFFSET_MASK; + i40e_write_rx_ctl(hw, I40E_PRTQF_FD_MSK(pctype, i), fd_mask); + } + + pf->fdir.flex_mask_flag[pctype] = 1; +} + /* 1. Last in item should be NULL as range is not supported. - * 2. Supported flow type and input set: refer to array + * 2. Supported patterns: refer to array i40e_supported_patterns. + * 3. Supported flow type and input set: refer to array * default_inset_table in i40e_ethdev.c. - * 3. Mask of fields which need to be matched should be + * 4. Mask of fields which need to be matched should be * filled with 1. - * 4. Mask of fields which needn't to be matched should be + * 5. Mask of fields which needn't to be matched should be * filled with 0. */ static int @@ -769,15 +948,31 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev, const struct rte_flow_item_tcp *tcp_spec, *tcp_mask; const struct rte_flow_item_udp *udp_spec, *udp_mask; const struct rte_flow_item_sctp *sctp_spec, *sctp_mask; + const struct rte_flow_item_raw *raw_spec, *raw_mask; const struct rte_flow_item_vf *vf_spec; + uint32_t flow_type = RTE_ETH_FLOW_UNKNOWN; enum i40e_filter_pctype pctype; uint64_t input_set = I40E_INSET_NONE; uint16_t flag_offset; enum rte_flow_item_type item_type; enum rte_flow_item_type l3 = RTE_FLOW_ITEM_TYPE_END; - uint32_t j; + uint32_t i, j; + enum i40e_flxpld_layer_idx layer_idx = I40E_FLXPLD_L2_IDX; + uint8_t raw_id = 0; + int32_t off_arr[I40E_MAX_FLXPLD_FIED]; + uint16_t len_arr[I40E_MAX_FLXPLD_FIED]; + struct i40e_fdir_flex_pit flex_pit; + uint8_t next_dst_off = 0; + uint8_t flex_mask[I40E_FDIR_MAX_FLEX_LEN]; + uint16_t flex_size; + bool cfg_flex_pit = true; + bool cfg_flex_msk = true; + int ret; + memset(off_arr, 0, I40E_MAX_FLXPLD_FIED); + memset(len_arr, 0, I40E_MAX_FLXPLD_FIED); + memset(flex_mask, 0, I40E_FDIR_MAX_FLEX_LEN); for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) { if (item->last) { rte_flow_error_set(error, EINVAL, @@ -798,6 +993,9 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev, "Invalid ETH spec/mask"); return -rte_errno; } + + layer_idx = I40E_FLXPLD_L2_IDX; + break; case RTE_FLOW_ITEM_TYPE_IPV4: l3 = RTE_FLOW_ITEM_TYPE_IPV4; @@ -858,6 +1056,8 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev, filter->input.flow.ip4_flow.dst_ip = ipv4_spec->hdr.dst_addr; + layer_idx = I40E_FLXPLD_L3_IDX; + break; case RTE_FLOW_ITEM_TYPE_IPV6: l3 = RTE_FLOW_ITEM_TYPE_IPV6; @@ -925,6 +1125,9 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev, flow_type = RTE_ETH_FLOW_FRAG_IPV6; else flow_type = RTE_ETH_FLOW_NONFRAG_IPV6_OTHER; + + layer_idx = I40E_FLXPLD_L3_IDX; + break; case RTE_FLOW_ITEM_TYPE_TCP: tcp_spec = (const struct rte_flow_item_tcp *)item->spec; @@ -981,6 +1184,9 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev, filter->input.flow.tcp6_flow.dst_port = tcp_spec->hdr.dst_port; } + + layer_idx = I40E_FLXPLD_L4_IDX; + break; case RTE_FLOW_ITEM_TYPE_UDP: udp_spec = (const struct rte_flow_item_udp *)item->spec; @@ -1034,6 +1240,9 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev, filter->input.flow.udp6_flow.dst_port = udp_spec->hdr.dst_port; } + + layer_idx = I40E_FLXPLD_L4_IDX; + break; case RTE_FLOW_ITEM_TYPE_SCTP: sctp_spec = @@ -1091,6 +1300,78 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev, filter->input.flow.sctp6_flow.verify_tag = sctp_spec->hdr.tag; } + + layer_idx = I40E_FLXPLD_L4_IDX; + + break; + case RTE_FLOW_ITEM_TYPE_RAW: + raw_spec = (const struct rte_flow_item_raw *)item->spec; + raw_mask = (const struct rte_flow_item_raw *)item->mask; + + if (!raw_spec || !raw_mask) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "NULL RAW spec/mask"); + return -rte_errno; + } + + ret = i40e_flow_check_raw_item(item, raw_spec, error); + if (ret < 0) + return ret; + + off_arr[raw_id] = raw_spec->offset; + len_arr[raw_id] = raw_spec->length; + + flex_size = 0; + memset(&flex_pit, 0, sizeof(struct i40e_fdir_flex_pit)); + flex_pit.size = + raw_spec->length / sizeof(uint16_t); + flex_pit.dst_offset = + next_dst_off / sizeof(uint16_t); + + for (i = 0; i <= raw_id; i++) { + if (i == raw_id) + flex_pit.src_offset += + raw_spec->offset / + sizeof(uint16_t); + else + flex_pit.src_offset += + (off_arr[i] + len_arr[i]) / + sizeof(uint16_t); + flex_size += len_arr[i]; + } + if (((flex_pit.src_offset + flex_pit.size) >= + I40E_MAX_FLX_SOURCE_OFF / sizeof(uint16_t)) || + flex_size > I40E_FDIR_MAX_FLEXLEN) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Exceeds maxmial payload limit."); + return -rte_errno; + } + + /* Store flex pit to SW */ + ret = i40e_flow_store_flex_pit(pf, &flex_pit, + layer_idx, raw_id); + if (ret < 0) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Conflict with the first flexible rule."); + return -rte_errno; + } else if (ret > 0) + cfg_flex_pit = false; + + for (i = 0; i < raw_spec->length; i++) { + j = i + next_dst_off; + filter->input.flow_ext.flexbytes[j] = + raw_spec->pattern[i]; + flex_mask[j] = raw_mask->pattern[i]; + } + + next_dst_off += raw_spec->length; + raw_id++; break; case RTE_FLOW_ITEM_TYPE_VF: vf_spec = (const struct rte_flow_item_vf *)item->spec; @@ -1126,6 +1407,29 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev, } filter->input.flow_type = flow_type; + /* Store flex mask to SW */ + ret = i40e_flow_store_flex_mask(pf, pctype, flex_mask); + if (ret == -1) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Exceed maximal number of bitmasks"); + return -rte_errno; + } else if (ret == -2) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Conflict with the first flexible rule"); + return -rte_errno; + } else if (ret > 0) + cfg_flex_msk = false; + + if (cfg_flex_pit) + i40e_flow_set_fdir_flex_pit(pf, layer_idx, raw_id); + + if (cfg_flex_msk) + i40e_flow_set_fdir_flex_msk(pf, pctype); + return 0; }