diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/virt/rss.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/virt/rss.c | 719 |
1 files changed, 719 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/virt/rss.c b/drivers/net/ethernet/intel/ice/virt/rss.c new file mode 100644 index 000000000000..cbdbb32d512b --- /dev/null +++ b/drivers/net/ethernet/intel/ice/virt/rss.c @@ -0,0 +1,719 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2022, Intel Corporation. */ + +#include "rss.h" +#include "ice_vf_lib_private.h" +#include "ice.h" + +#define FIELD_SELECTOR(proto_hdr_field) \ + BIT((proto_hdr_field) & PROTO_HDR_FIELD_MASK) + +struct ice_vc_hdr_match_type { + u32 vc_hdr; /* virtchnl headers (VIRTCHNL_PROTO_HDR_XXX) */ + u32 ice_hdr; /* ice headers (ICE_FLOW_SEG_HDR_XXX) */ +}; + +static const struct ice_vc_hdr_match_type ice_vc_hdr_list[] = { + {VIRTCHNL_PROTO_HDR_NONE, ICE_FLOW_SEG_HDR_NONE}, + {VIRTCHNL_PROTO_HDR_ETH, ICE_FLOW_SEG_HDR_ETH}, + {VIRTCHNL_PROTO_HDR_S_VLAN, ICE_FLOW_SEG_HDR_VLAN}, + {VIRTCHNL_PROTO_HDR_C_VLAN, ICE_FLOW_SEG_HDR_VLAN}, + {VIRTCHNL_PROTO_HDR_IPV4, ICE_FLOW_SEG_HDR_IPV4 | + ICE_FLOW_SEG_HDR_IPV_OTHER}, + {VIRTCHNL_PROTO_HDR_IPV6, ICE_FLOW_SEG_HDR_IPV6 | + ICE_FLOW_SEG_HDR_IPV_OTHER}, + {VIRTCHNL_PROTO_HDR_TCP, ICE_FLOW_SEG_HDR_TCP}, + {VIRTCHNL_PROTO_HDR_UDP, ICE_FLOW_SEG_HDR_UDP}, + {VIRTCHNL_PROTO_HDR_SCTP, ICE_FLOW_SEG_HDR_SCTP}, + {VIRTCHNL_PROTO_HDR_PPPOE, ICE_FLOW_SEG_HDR_PPPOE}, + {VIRTCHNL_PROTO_HDR_GTPU_IP, ICE_FLOW_SEG_HDR_GTPU_IP}, + {VIRTCHNL_PROTO_HDR_GTPU_EH, ICE_FLOW_SEG_HDR_GTPU_EH}, + {VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_DWN, + ICE_FLOW_SEG_HDR_GTPU_DWN}, + {VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_UP, + ICE_FLOW_SEG_HDR_GTPU_UP}, + {VIRTCHNL_PROTO_HDR_L2TPV3, ICE_FLOW_SEG_HDR_L2TPV3}, + {VIRTCHNL_PROTO_HDR_ESP, ICE_FLOW_SEG_HDR_ESP}, + {VIRTCHNL_PROTO_HDR_AH, ICE_FLOW_SEG_HDR_AH}, + {VIRTCHNL_PROTO_HDR_PFCP, ICE_FLOW_SEG_HDR_PFCP_SESSION}, +}; + +struct ice_vc_hash_field_match_type { + u32 vc_hdr; /* virtchnl headers + * (VIRTCHNL_PROTO_HDR_XXX) + */ + u32 vc_hash_field; /* virtchnl hash fields selector + * FIELD_SELECTOR((VIRTCHNL_PROTO_HDR_ETH_XXX)) + */ + u64 ice_hash_field; /* ice hash fields + * (BIT_ULL(ICE_FLOW_FIELD_IDX_XXX)) + */ +}; + +static const struct +ice_vc_hash_field_match_type ice_vc_hash_field_list[] = { + {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC), + BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_SA)}, + {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST), + BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_DA)}, + {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST), + ICE_FLOW_HASH_ETH}, + {VIRTCHNL_PROTO_HDR_ETH, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_ETHERTYPE), + BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_TYPE)}, + {VIRTCHNL_PROTO_HDR_S_VLAN, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_S_VLAN_ID), + BIT_ULL(ICE_FLOW_FIELD_IDX_S_VLAN)}, + {VIRTCHNL_PROTO_HDR_C_VLAN, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_C_VLAN_ID), + BIT_ULL(ICE_FLOW_FIELD_IDX_C_VLAN)}, + {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC), + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)}, + {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST), + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)}, + {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST), + ICE_FLOW_HASH_IPV4}, + {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT), + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) | + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)}, + {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT), + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) | + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)}, + {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT), + ICE_FLOW_HASH_IPV4 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)}, + {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT), + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)}, + {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC), + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)}, + {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST), + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)}, + {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST), + ICE_FLOW_HASH_IPV6}, + {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT), + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) | + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)}, + {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT), + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) | + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)}, + {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT), + ICE_FLOW_HASH_IPV6 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)}, + {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT), + BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)}, + {VIRTCHNL_PROTO_HDR_TCP, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT), + BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)}, + {VIRTCHNL_PROTO_HDR_TCP, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT), + BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)}, + {VIRTCHNL_PROTO_HDR_TCP, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT), + ICE_FLOW_HASH_TCP_PORT}, + {VIRTCHNL_PROTO_HDR_UDP, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT), + BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)}, + {VIRTCHNL_PROTO_HDR_UDP, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT), + BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)}, + {VIRTCHNL_PROTO_HDR_UDP, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT), + ICE_FLOW_HASH_UDP_PORT}, + {VIRTCHNL_PROTO_HDR_SCTP, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT), + BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)}, + {VIRTCHNL_PROTO_HDR_SCTP, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT), + BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)}, + {VIRTCHNL_PROTO_HDR_SCTP, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT) | + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT), + ICE_FLOW_HASH_SCTP_PORT}, + {VIRTCHNL_PROTO_HDR_PPPOE, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PPPOE_SESS_ID), + BIT_ULL(ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID)}, + {VIRTCHNL_PROTO_HDR_GTPU_IP, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_GTPU_IP_TEID), + BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_IP_TEID)}, + {VIRTCHNL_PROTO_HDR_L2TPV3, + FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID), + BIT_ULL(ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID)}, + {VIRTCHNL_PROTO_HDR_ESP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ESP_SPI), + BIT_ULL(ICE_FLOW_FIELD_IDX_ESP_SPI)}, + {VIRTCHNL_PROTO_HDR_AH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_AH_SPI), + BIT_ULL(ICE_FLOW_FIELD_IDX_AH_SPI)}, + {VIRTCHNL_PROTO_HDR_PFCP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PFCP_SEID), + BIT_ULL(ICE_FLOW_FIELD_IDX_PFCP_SEID)}, +}; + +/** + * ice_vc_validate_pattern + * @vf: pointer to the VF info + * @proto: virtchnl protocol headers + * + * validate the pattern is supported or not. + * + * Return: true on success, false on error. + */ +bool +ice_vc_validate_pattern(struct ice_vf *vf, struct virtchnl_proto_hdrs *proto) +{ + bool is_ipv4 = false; + bool is_ipv6 = false; + bool is_udp = false; + u16 ptype = -1; + int i = 0; + + while (i < proto->count && + proto->proto_hdr[i].type != VIRTCHNL_PROTO_HDR_NONE) { + switch (proto->proto_hdr[i].type) { + case VIRTCHNL_PROTO_HDR_ETH: + ptype = ICE_PTYPE_MAC_PAY; + break; + case VIRTCHNL_PROTO_HDR_IPV4: + ptype = ICE_PTYPE_IPV4_PAY; + is_ipv4 = true; + break; + case VIRTCHNL_PROTO_HDR_IPV6: + ptype = ICE_PTYPE_IPV6_PAY; + is_ipv6 = true; + break; + case VIRTCHNL_PROTO_HDR_UDP: + if (is_ipv4) + ptype = ICE_PTYPE_IPV4_UDP_PAY; + else if (is_ipv6) + ptype = ICE_PTYPE_IPV6_UDP_PAY; + is_udp = true; + break; + case VIRTCHNL_PROTO_HDR_TCP: + if (is_ipv4) + ptype = ICE_PTYPE_IPV4_TCP_PAY; + else if (is_ipv6) + ptype = ICE_PTYPE_IPV6_TCP_PAY; + break; + case VIRTCHNL_PROTO_HDR_SCTP: + if (is_ipv4) + ptype = ICE_PTYPE_IPV4_SCTP_PAY; + else if (is_ipv6) + ptype = ICE_PTYPE_IPV6_SCTP_PAY; + break; + case VIRTCHNL_PROTO_HDR_GTPU_IP: + case VIRTCHNL_PROTO_HDR_GTPU_EH: + if (is_ipv4) + ptype = ICE_MAC_IPV4_GTPU; + else if (is_ipv6) + ptype = ICE_MAC_IPV6_GTPU; + goto out; + case VIRTCHNL_PROTO_HDR_L2TPV3: + if (is_ipv4) + ptype = ICE_MAC_IPV4_L2TPV3; + else if (is_ipv6) + ptype = ICE_MAC_IPV6_L2TPV3; + goto out; + case VIRTCHNL_PROTO_HDR_ESP: + if (is_ipv4) + ptype = is_udp ? ICE_MAC_IPV4_NAT_T_ESP : + ICE_MAC_IPV4_ESP; + else if (is_ipv6) + ptype = is_udp ? ICE_MAC_IPV6_NAT_T_ESP : + ICE_MAC_IPV6_ESP; + goto out; + case VIRTCHNL_PROTO_HDR_AH: + if (is_ipv4) + ptype = ICE_MAC_IPV4_AH; + else if (is_ipv6) + ptype = ICE_MAC_IPV6_AH; + goto out; + case VIRTCHNL_PROTO_HDR_PFCP: + if (is_ipv4) + ptype = ICE_MAC_IPV4_PFCP_SESSION; + else if (is_ipv6) + ptype = ICE_MAC_IPV6_PFCP_SESSION; + goto out; + default: + break; + } + i++; + } + +out: + return ice_hw_ptype_ena(&vf->pf->hw, ptype); +} + +/** + * ice_vc_parse_rss_cfg - parses hash fields and headers from + * a specific virtchnl RSS cfg + * @hw: pointer to the hardware + * @rss_cfg: pointer to the virtchnl RSS cfg + * @hash_cfg: pointer to the HW hash configuration + * + * Return true if all the protocol header and hash fields in the RSS cfg could + * be parsed, else return false + * + * This function parses the virtchnl RSS cfg to be the intended + * hash fields and the intended header for RSS configuration + */ +static bool ice_vc_parse_rss_cfg(struct ice_hw *hw, + struct virtchnl_rss_cfg *rss_cfg, + struct ice_rss_hash_cfg *hash_cfg) +{ + const struct ice_vc_hash_field_match_type *hf_list; + const struct ice_vc_hdr_match_type *hdr_list; + int i, hf_list_len, hdr_list_len; + u32 *addl_hdrs = &hash_cfg->addl_hdrs; + u64 *hash_flds = &hash_cfg->hash_flds; + + /* set outer layer RSS as default */ + hash_cfg->hdr_type = ICE_RSS_OUTER_HEADERS; + + if (rss_cfg->rss_algorithm == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC) + hash_cfg->symm = true; + else + hash_cfg->symm = false; + + hf_list = ice_vc_hash_field_list; + hf_list_len = ARRAY_SIZE(ice_vc_hash_field_list); + hdr_list = ice_vc_hdr_list; + hdr_list_len = ARRAY_SIZE(ice_vc_hdr_list); + + for (i = 0; i < rss_cfg->proto_hdrs.count; i++) { + struct virtchnl_proto_hdr *proto_hdr = + &rss_cfg->proto_hdrs.proto_hdr[i]; + bool hdr_found = false; + int j; + + /* Find matched ice headers according to virtchnl headers. */ + for (j = 0; j < hdr_list_len; j++) { + struct ice_vc_hdr_match_type hdr_map = hdr_list[j]; + + if (proto_hdr->type == hdr_map.vc_hdr) { + *addl_hdrs |= hdr_map.ice_hdr; + hdr_found = true; + } + } + + if (!hdr_found) + return false; + + /* Find matched ice hash fields according to + * virtchnl hash fields. + */ + for (j = 0; j < hf_list_len; j++) { + struct ice_vc_hash_field_match_type hf_map = hf_list[j]; + + if (proto_hdr->type == hf_map.vc_hdr && + proto_hdr->field_selector == hf_map.vc_hash_field) { + *hash_flds |= hf_map.ice_hash_field; + break; + } + } + } + + return true; +} + +/** + * ice_vf_adv_rss_offload_ena - determine if capabilities support advanced + * RSS offloads + * @caps: VF driver negotiated capabilities + * + * Return true if VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF capability is set, + * else return false + */ +static bool ice_vf_adv_rss_offload_ena(u32 caps) +{ + return !!(caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF); +} + +/** + * ice_vc_handle_rss_cfg + * @vf: pointer to the VF info + * @msg: pointer to the message buffer + * @add: add a RSS config if true, otherwise delete a RSS config + * + * This function adds/deletes a RSS config + */ +int ice_vc_handle_rss_cfg(struct ice_vf *vf, u8 *msg, bool add) +{ + u32 v_opcode = add ? VIRTCHNL_OP_ADD_RSS_CFG : VIRTCHNL_OP_DEL_RSS_CFG; + struct virtchnl_rss_cfg *rss_cfg = (struct virtchnl_rss_cfg *)msg; + enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; + struct device *dev = ice_pf_to_dev(vf->pf); + struct ice_hw *hw = &vf->pf->hw; + struct ice_vsi *vsi; + + if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) { + dev_dbg(dev, "VF %d attempting to configure RSS, but RSS is not supported by the PF\n", + vf->vf_id); + v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED; + goto error_param; + } + + if (!ice_vf_adv_rss_offload_ena(vf->driver_caps)) { + dev_dbg(dev, "VF %d attempting to configure RSS, but Advanced RSS offload is not supported\n", + vf->vf_id); + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (rss_cfg->proto_hdrs.count > VIRTCHNL_MAX_NUM_PROTO_HDRS || + rss_cfg->rss_algorithm < VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC || + rss_cfg->rss_algorithm > VIRTCHNL_RSS_ALG_XOR_SYMMETRIC) { + dev_dbg(dev, "VF %d attempting to configure RSS, but RSS configuration is not valid\n", + vf->vf_id); + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + vsi = ice_get_vf_vsi(vf); + if (!vsi) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (!ice_vc_validate_pattern(vf, &rss_cfg->proto_hdrs)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (rss_cfg->rss_algorithm == VIRTCHNL_RSS_ALG_R_ASYMMETRIC) { + struct ice_vsi_ctx *ctx; + u8 lut_type, hash_type; + int status; + + lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_VSI; + hash_type = add ? ICE_AQ_VSI_Q_OPT_RSS_HASH_XOR : + ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ; + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) { + v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY; + goto error_param; + } + + ctx->info.q_opt_rss = + FIELD_PREP(ICE_AQ_VSI_Q_OPT_RSS_LUT_M, lut_type) | + FIELD_PREP(ICE_AQ_VSI_Q_OPT_RSS_HASH_M, hash_type); + + /* Preserve existing queueing option setting */ + ctx->info.q_opt_rss |= (vsi->info.q_opt_rss & + ICE_AQ_VSI_Q_OPT_RSS_GBL_LUT_M); + ctx->info.q_opt_tc = vsi->info.q_opt_tc; + ctx->info.q_opt_flags = vsi->info.q_opt_rss; + + ctx->info.valid_sections = + cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID); + + status = ice_update_vsi(hw, vsi->idx, ctx, NULL); + if (status) { + dev_err(dev, "update VSI for RSS failed, err %d aq_err %s\n", + status, libie_aq_str(hw->adminq.sq_last_status)); + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + } else { + vsi->info.q_opt_rss = ctx->info.q_opt_rss; + } + + kfree(ctx); + } else { + struct ice_rss_hash_cfg cfg; + + /* Only check for none raw pattern case */ + if (!ice_vc_validate_pattern(vf, &rss_cfg->proto_hdrs)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + cfg.addl_hdrs = ICE_FLOW_SEG_HDR_NONE; + cfg.hash_flds = ICE_HASH_INVALID; + cfg.hdr_type = ICE_RSS_ANY_HEADERS; + + if (!ice_vc_parse_rss_cfg(hw, rss_cfg, &cfg)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (add) { + if (ice_add_rss_cfg(hw, vsi, &cfg)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + dev_err(dev, "ice_add_rss_cfg failed for vsi = %d, v_ret = %d\n", + vsi->vsi_num, v_ret); + } + } else { + int status; + + status = ice_rem_rss_cfg(hw, vsi->idx, &cfg); + /* We just ignore -ENOENT, because if two configurations + * share the same profile remove one of them actually + * removes both, since the profile is deleted. + */ + if (status && status != -ENOENT) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + dev_err(dev, "ice_rem_rss_cfg failed for VF ID:%d, error:%d\n", + vf->vf_id, status); + } + } + } + +error_param: + return ice_vc_send_msg_to_vf(vf, v_opcode, v_ret, NULL, 0); +} + +/** + * ice_vc_config_rss_key + * @vf: pointer to the VF info + * @msg: pointer to the msg buffer + * + * Configure the VF's RSS key + */ +int ice_vc_config_rss_key(struct ice_vf *vf, u8 *msg) +{ + enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; + struct virtchnl_rss_key *vrk = + (struct virtchnl_rss_key *)msg; + struct ice_vsi *vsi; + + if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (!ice_vc_isvalid_vsi_id(vf, vrk->vsi_id)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + vsi = ice_get_vf_vsi(vf); + if (!vsi) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (ice_set_rss_key(vsi, vrk->key)) + v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR; +error_param: + return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, v_ret, + NULL, 0); +} + +/** + * ice_vc_config_rss_lut + * @vf: pointer to the VF info + * @msg: pointer to the msg buffer + * + * Configure the VF's RSS LUT + */ +int ice_vc_config_rss_lut(struct ice_vf *vf, u8 *msg) +{ + struct virtchnl_rss_lut *vrl = (struct virtchnl_rss_lut *)msg; + enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; + struct ice_vsi *vsi; + + if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (!ice_vc_isvalid_vsi_id(vf, vrl->vsi_id)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (vrl->lut_entries != ICE_LUT_VSI_SIZE) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + vsi = ice_get_vf_vsi(vf); + if (!vsi) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (ice_set_rss_lut(vsi, vrl->lut, ICE_LUT_VSI_SIZE)) + v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR; +error_param: + return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, v_ret, + NULL, 0); +} + +/** + * ice_vc_config_rss_hfunc + * @vf: pointer to the VF info + * @msg: pointer to the msg buffer + * + * Configure the VF's RSS Hash function + */ +int ice_vc_config_rss_hfunc(struct ice_vf *vf, u8 *msg) +{ + struct virtchnl_rss_hfunc *vrh = (struct virtchnl_rss_hfunc *)msg; + enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; + u8 hfunc = ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ; + struct ice_vsi *vsi; + + if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (!ice_vc_isvalid_vsi_id(vf, vrh->vsi_id)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + vsi = ice_get_vf_vsi(vf); + if (!vsi) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto error_param; + } + + if (vrh->rss_algorithm == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC) + hfunc = ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ; + + if (ice_set_rss_hfunc(vsi, hfunc)) + v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR; +error_param: + return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_HFUNC, v_ret, + NULL, 0); +} + +/** + * ice_vc_get_rss_hashcfg - return the RSS Hash configuration + * @vf: pointer to the VF info + */ +int ice_vc_get_rss_hashcfg(struct ice_vf *vf) +{ + enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; + struct virtchnl_rss_hashcfg *vrh = NULL; + int len = 0, ret; + + if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto err; + } + + if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) { + dev_err(ice_pf_to_dev(vf->pf), "RSS not supported by PF\n"); + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto err; + } + + len = sizeof(struct virtchnl_rss_hashcfg); + vrh = kzalloc(len, GFP_KERNEL); + if (!vrh) { + v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY; + len = 0; + goto err; + } + + vrh->hashcfg = ICE_DEFAULT_RSS_HASHCFG; +err: + /* send the response back to the VF */ + ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HASHCFG_CAPS, v_ret, + (u8 *)vrh, len); + kfree(vrh); + return ret; +} + +/** + * ice_vc_set_rss_hashcfg - set RSS Hash configuration bits for the VF + * @vf: pointer to the VF info + * @msg: pointer to the msg buffer + */ +int ice_vc_set_rss_hashcfg(struct ice_vf *vf, u8 *msg) +{ + struct virtchnl_rss_hashcfg *vrh = (struct virtchnl_rss_hashcfg *)msg; + enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; + struct ice_pf *pf = vf->pf; + struct ice_vsi *vsi; + struct device *dev; + int status; + + dev = ice_pf_to_dev(pf); + + if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto err; + } + + if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { + dev_err(dev, "RSS not supported by PF\n"); + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto err; + } + + vsi = ice_get_vf_vsi(vf); + if (!vsi) { + v_ret = VIRTCHNL_STATUS_ERR_PARAM; + goto err; + } + + /* clear all previously programmed RSS configuration to allow VF drivers + * the ability to customize the RSS configuration and/or completely + * disable RSS + */ + status = ice_rem_vsi_rss_cfg(&pf->hw, vsi->idx); + if (status && !vrh->hashcfg) { + /* only report failure to clear the current RSS configuration if + * that was clearly the VF's intention (i.e. vrh->hashcfg = 0) + */ + v_ret = ice_err_to_virt_err(status); + goto err; + } else if (status) { + /* allow the VF to update the RSS configuration even on failure + * to clear the current RSS confguration in an attempt to keep + * RSS in a working state + */ + dev_warn(dev, "Failed to clear the RSS configuration for VF %u\n", + vf->vf_id); + } + + if (vrh->hashcfg) { + status = ice_add_avf_rss_cfg(&pf->hw, vsi, vrh->hashcfg); + v_ret = ice_err_to_virt_err(status); + } + + /* save the requested VF configuration */ + if (!v_ret) + vf->rss_hashcfg = vrh->hashcfg; + + /* send the response to the VF */ +err: + return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_SET_RSS_HASHCFG, v_ret, + NULL, 0); +} + |