diff --git a/drivers/net/ethernet/hisilicon/hns3/Makefile b/drivers/net/ethernet/hisilicon/hns3/Makefile index 18f833138562dfb81d45af401336d5646bfdf0a3..00d0a8e7f234e6d4bebc515cda9fb6ee07210b4f 100644 --- a/drivers/net/ethernet/hisilicon/hns3/Makefile +++ b/drivers/net/ethernet/hisilicon/hns3/Makefile @@ -18,11 +18,11 @@ hns3-$(CONFIG_HNS3_DCB) += hns3_dcbnl.o obj-$(CONFIG_HNS3_HCLGEVF) += hclgevf.o hclgevf-objs = hns3vf/hclgevf_main.o hns3vf/hclgevf_mbx.o hns3vf/hclgevf_devlink.o \ - hns3_common/hclge_comm_cmd.o + hns3_common/hclge_comm_cmd.o hns3_common/hclge_comm_rss.o obj-$(CONFIG_HNS3_HCLGE) += hclge.o hclge-objs = hns3pf/hclge_main.o hns3pf/hclge_mdio.o hns3pf/hclge_tm.o \ hns3pf/hclge_mbx.o hns3pf/hclge_err.o hns3pf/hclge_debugfs.o hns3pf/hclge_ptp.o hns3pf/hclge_devlink.o \ - hns3_common/hclge_comm_cmd.o + hns3_common/hclge_comm_cmd.o hns3_common/hclge_comm_rss.o hclge-$(CONFIG_HNS3_DCB) += hns3pf/hclge_dcb.o diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_rss.c b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_rss.c new file mode 100644 index 0000000000000000000000000000000000000000..70bf4504d41eb22dbe70b7ff2a596a54dd13609d --- /dev/null +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_rss.c @@ -0,0 +1,164 @@ +// SPDX-License-Identifier: GPL-2.0+ +// Copyright (c) 2021-2021 Hisilicon Limited. +#include <linux/skbuff.h> + +#include "hnae3.h" +#include "hclge_comm_rss.h" + +u32 hclge_comm_get_rss_key_size(struct hnae3_handle *handle) +{ + return HCLGE_COMM_RSS_KEY_SIZE; +} + +void hclge_comm_get_rss_type(struct hnae3_handle *nic, + struct hclge_comm_rss_tuple_cfg *rss_tuple_sets) +{ + if (rss_tuple_sets->ipv4_tcp_en || + rss_tuple_sets->ipv4_udp_en || + rss_tuple_sets->ipv4_sctp_en || + rss_tuple_sets->ipv6_tcp_en || + rss_tuple_sets->ipv6_udp_en || + rss_tuple_sets->ipv6_sctp_en) + nic->kinfo.rss_type = PKT_HASH_TYPE_L4; + else if (rss_tuple_sets->ipv4_fragment_en || + rss_tuple_sets->ipv6_fragment_en) + nic->kinfo.rss_type = PKT_HASH_TYPE_L3; + else + nic->kinfo.rss_type = PKT_HASH_TYPE_NONE; +} + +int hclge_comm_parse_rss_hfunc(struct hclge_comm_rss_cfg *rss_cfg, + const u8 hfunc, u8 *hash_algo) +{ + switch (hfunc) { + case ETH_RSS_HASH_TOP: + *hash_algo = HCLGE_COMM_RSS_HASH_ALGO_TOEPLITZ; + return 0; + case ETH_RSS_HASH_XOR: + *hash_algo = HCLGE_COMM_RSS_HASH_ALGO_SIMPLE; + return 0; + case ETH_RSS_HASH_NO_CHANGE: + *hash_algo = rss_cfg->rss_algo; + return 0; + default: + return -EINVAL; + } +} + +void hclge_comm_rss_indir_init_cfg(struct hnae3_ae_dev *ae_dev, + struct hclge_comm_rss_cfg *rss_cfg) +{ + u16 i; + /* Initialize RSS indirect table */ + for (i = 0; i < ae_dev->dev_specs.rss_ind_tbl_size; i++) + rss_cfg->rss_indirection_tbl[i] = i % rss_cfg->rss_size; +} + +int hclge_comm_get_rss_tuple(struct hclge_comm_rss_cfg *rss_cfg, int flow_type, + u8 *tuple_sets) +{ + switch (flow_type) { + case TCP_V4_FLOW: + *tuple_sets = rss_cfg->rss_tuple_sets.ipv4_tcp_en; + break; + case UDP_V4_FLOW: + *tuple_sets = rss_cfg->rss_tuple_sets.ipv4_udp_en; + break; + case TCP_V6_FLOW: + *tuple_sets = rss_cfg->rss_tuple_sets.ipv6_tcp_en; + break; + case UDP_V6_FLOW: + *tuple_sets = rss_cfg->rss_tuple_sets.ipv6_udp_en; + break; + case SCTP_V4_FLOW: + *tuple_sets = rss_cfg->rss_tuple_sets.ipv4_sctp_en; + break; + case SCTP_V6_FLOW: + *tuple_sets = rss_cfg->rss_tuple_sets.ipv6_sctp_en; + break; + case IPV4_FLOW: + case IPV6_FLOW: + *tuple_sets = HCLGE_COMM_S_IP_BIT | HCLGE_COMM_D_IP_BIT; + break; + default: + return -EINVAL; + } + + return 0; +} + +void hclge_comm_get_rss_hash_info(struct hclge_comm_rss_cfg *rss_cfg, u8 *key, + u8 *hfunc) +{ + /* Get hash algorithm */ + if (hfunc) { + switch (rss_cfg->rss_algo) { + case HCLGE_COMM_RSS_HASH_ALGO_TOEPLITZ: + *hfunc = ETH_RSS_HASH_TOP; + break; + case HCLGE_COMM_RSS_HASH_ALGO_SIMPLE: + *hfunc = ETH_RSS_HASH_XOR; + break; + default: + *hfunc = ETH_RSS_HASH_UNKNOWN; + break; + } + } + + /* Get the RSS Key required by the user */ + if (key) + memcpy(key, rss_cfg->rss_hash_key, HCLGE_COMM_RSS_KEY_SIZE); +} + +void hclge_comm_get_rss_indir_tbl(struct hclge_comm_rss_cfg *rss_cfg, + u32 *indir, u16 rss_ind_tbl_size) +{ + u16 i; + + if (!indir) + return; + + for (i = 0; i < rss_ind_tbl_size; i++) + indir[i] = rss_cfg->rss_indirection_tbl[i]; +} + +u8 hclge_comm_get_rss_hash_bits(struct ethtool_rxnfc *nfc) +{ + u8 hash_sets = nfc->data & RXH_L4_B_0_1 ? HCLGE_COMM_S_PORT_BIT : 0; + + if (nfc->data & RXH_L4_B_2_3) + hash_sets |= HCLGE_COMM_D_PORT_BIT; + else + hash_sets &= ~HCLGE_COMM_D_PORT_BIT; + + if (nfc->data & RXH_IP_SRC) + hash_sets |= HCLGE_COMM_S_IP_BIT; + else + hash_sets &= ~HCLGE_COMM_S_IP_BIT; + + if (nfc->data & RXH_IP_DST) + hash_sets |= HCLGE_COMM_D_IP_BIT; + else + hash_sets &= ~HCLGE_COMM_D_IP_BIT; + + if (nfc->flow_type == SCTP_V4_FLOW || nfc->flow_type == SCTP_V6_FLOW) + hash_sets |= HCLGE_COMM_V_TAG_BIT; + + return hash_sets; +} + +u64 hclge_comm_convert_rss_tuple(u8 tuple_sets) +{ + u64 tuple_data = 0; + + if (tuple_sets & HCLGE_COMM_D_PORT_BIT) + tuple_data |= RXH_L4_B_2_3; + if (tuple_sets & HCLGE_COMM_S_PORT_BIT) + tuple_data |= RXH_L4_B_0_1; + if (tuple_sets & HCLGE_COMM_D_IP_BIT) + tuple_data |= RXH_IP_DST; + if (tuple_sets & HCLGE_COMM_S_IP_BIT) + tuple_data |= RXH_IP_SRC; + + return tuple_data; +} diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_rss.h b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_rss.h index 74bd30b2fcc9cd99a2ea85fd91516a3b3e550353..66f9efa853ca2c51b099a82c3606b293f2c07136 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_rss.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_rss.h @@ -7,6 +7,21 @@ #include "hnae3.h" +#define HCLGE_COMM_RSS_HASH_ALGO_TOEPLITZ 0 +#define HCLGE_COMM_RSS_HASH_ALGO_SIMPLE 1 +#define HCLGE_COMM_RSS_HASH_ALGO_SYMMETRIC 2 + +#define HCLGE_COMM_RSS_INPUT_TUPLE_OTHER GENMASK(3, 0) +#define HCLGE_COMM_RSS_INPUT_TUPLE_SCTP GENMASK(4, 0) + +#define HCLGE_COMM_D_PORT_BIT BIT(0) +#define HCLGE_COMM_S_PORT_BIT BIT(1) +#define HCLGE_COMM_D_IP_BIT BIT(2) +#define HCLGE_COMM_S_IP_BIT BIT(3) +#define HCLGE_COMM_V_TAG_BIT BIT(4) +#define HCLGE_COMM_RSS_INPUT_TUPLE_SCTP_NO_PORT \ + (HCLGE_COMM_D_IP_BIT | HCLGE_COMM_S_IP_BIT | HCLGE_COMM_V_TAG_BIT) + struct hclge_comm_rss_tuple_cfg { u8 ipv4_tcp_en; u8 ipv4_udp_en; @@ -31,4 +46,20 @@ struct hclge_comm_rss_cfg { u32 rss_size; }; +u32 hclge_comm_get_rss_key_size(struct hnae3_handle *handle); +void hclge_comm_get_rss_type(struct hnae3_handle *nic, + struct hclge_comm_rss_tuple_cfg *rss_tuple_sets); +void hclge_comm_rss_indir_init_cfg(struct hnae3_ae_dev *ae_dev, + struct hclge_comm_rss_cfg *rss_cfg); +int hclge_comm_get_rss_tuple(struct hclge_comm_rss_cfg *rss_cfg, int flow_type, + u8 *tuple_sets); +int hclge_comm_parse_rss_hfunc(struct hclge_comm_rss_cfg *rss_cfg, + const u8 hfunc, u8 *hash_algo); +void hclge_comm_get_rss_hash_info(struct hclge_comm_rss_cfg *rss_cfg, u8 *key, + u8 *hfunc); +void hclge_comm_get_rss_indir_tbl(struct hclge_comm_rss_cfg *rss_cfg, + u32 *indir, u16 rss_ind_tbl_size); +u8 hclge_comm_get_rss_hash_bits(struct ethtool_rxnfc *nfc); +u64 hclge_comm_convert_rss_tuple(u8 tuple_sets); + #endif