diff options
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_dcbx.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 2414 |
1 files changed, 2414 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c new file mode 100644 index 000000000..dc93ddea8 --- /dev/null +++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c @@ -0,0 +1,2414 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +/* QLogic qed NIC Driver + * Copyright (c) 2015-2017 QLogic Corporation + * Copyright (c) 2019-2020 Marvell International Ltd. + */ + +#include <linux/types.h> +#include <asm/byteorder.h> +#include <linux/bitops.h> +#include <linux/dcbnl.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/string.h> +#include "qed.h" +#include "qed_cxt.h" +#include "qed_dcbx.h" +#include "qed_hsi.h" +#include "qed_sp.h" +#include "qed_sriov.h" +#include "qed_rdma.h" +#ifdef CONFIG_DCB +#include <linux/qed/qed_eth_if.h> +#endif + +#define QED_DCBX_MAX_MIB_READ_TRY (100) +#define QED_ETH_TYPE_DEFAULT (0) +#define QED_ETH_TYPE_ROCE (0x8915) +#define QED_UDP_PORT_TYPE_ROCE_V2 (0x12B7) +#define QED_ETH_TYPE_FCOE (0x8906) +#define QED_TCP_PORT_ISCSI (0xCBC) + +#define QED_DCBX_INVALID_PRIORITY 0xFF + +/* Get Traffic Class from priority traffic class table, 4 bits represent + * the traffic class corresponding to the priority. + */ +#define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \ + ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7) + +static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = { + {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_ISCSI}, + {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_FCOE}, + {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_ETH_ROCE}, + {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_ETH_ROCE}, + {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH}, +}; + +static bool qed_dcbx_app_ethtype(u32 app_info_bitmap) +{ + return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) == + DCBX_APP_SF_ETHTYPE); +} + +static bool qed_dcbx_ieee_app_ethtype(u32 app_info_bitmap) +{ + u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE); + + /* Old MFW */ + if (mfw_val == DCBX_APP_SF_IEEE_RESERVED) + return qed_dcbx_app_ethtype(app_info_bitmap); + + return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE); +} + +static bool qed_dcbx_app_port(u32 app_info_bitmap) +{ + return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) == + DCBX_APP_SF_PORT); +} + +static bool qed_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type) +{ + u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE); + + /* Old MFW */ + if (mfw_val == DCBX_APP_SF_IEEE_RESERVED) + return qed_dcbx_app_port(app_info_bitmap); + + return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT); +} + +static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee) +{ + bool ethtype; + + if (ieee) + ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap); + else + ethtype = qed_dcbx_app_ethtype(app_info_bitmap); + + return !!(ethtype && (proto_id == QED_ETH_TYPE_DEFAULT)); +} + +static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee) +{ + bool port; + + if (ieee) + port = qed_dcbx_ieee_app_port(app_info_bitmap, + DCBX_APP_SF_IEEE_TCP_PORT); + else + port = qed_dcbx_app_port(app_info_bitmap); + + return !!(port && (proto_id == QED_TCP_PORT_ISCSI)); +} + +static bool qed_dcbx_fcoe_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee) +{ + bool ethtype; + + if (ieee) + ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap); + else + ethtype = qed_dcbx_app_ethtype(app_info_bitmap); + + return !!(ethtype && (proto_id == QED_ETH_TYPE_FCOE)); +} + +static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee) +{ + bool ethtype; + + if (ieee) + ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap); + else + ethtype = qed_dcbx_app_ethtype(app_info_bitmap); + + return !!(ethtype && (proto_id == QED_ETH_TYPE_ROCE)); +} + +static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee) +{ + bool port; + + if (ieee) + port = qed_dcbx_ieee_app_port(app_info_bitmap, + DCBX_APP_SF_IEEE_UDP_PORT); + else + port = qed_dcbx_app_port(app_info_bitmap); + + return !!(port && (proto_id == QED_UDP_PORT_TYPE_ROCE_V2)); +} + +static void +qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data) +{ + enum dcbx_protocol_type id; + int i; + + DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n", + p_data->dcbx_enabled); + + for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) { + id = qed_dcbx_app_update[i].id; + + DP_VERBOSE(p_hwfn, QED_MSG_DCB, + "%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n", + qed_dcbx_app_update[i].name, p_data->arr[id].update, + p_data->arr[id].enable, p_data->arr[id].priority, + p_data->arr[id].tc, p_hwfn->hw_info.num_active_tc); + } +} + +static void +qed_dcbx_set_params(struct qed_dcbx_results *p_data, + struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, + bool app_tlv, bool enable, u8 prio, u8 tc, + enum dcbx_protocol_type type, + enum qed_pci_personality personality) +{ + /* PF update ramrod data */ + p_data->arr[type].enable = enable; + p_data->arr[type].priority = prio; + p_data->arr[type].tc = tc; + if (enable) + p_data->arr[type].update = UPDATE_DCB; + else + p_data->arr[type].update = DONT_UPDATE_DCB_DSCP; + + if (test_bit(QED_MF_DONT_ADD_VLAN0_TAG, &p_hwfn->cdev->mf_bits)) + p_data->arr[type].dont_add_vlan0 = true; + + /* QM reconf data */ + if (app_tlv && p_hwfn->hw_info.personality == personality) + qed_hw_info_set_offload_tc(&p_hwfn->hw_info, tc); + + /* Configure dcbx vlan priority in doorbell block for roce EDPM */ + if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) && + type == DCBX_PROTOCOL_ROCE) { + qed_wr(p_hwfn, p_ptt, DORQ_REG_TAG1_OVRD_MODE, 1); + qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_PCP_BB_K2, prio << 1); + } +} + +/* Update app protocol data and hw_info fields with the TLV info */ +static void +qed_dcbx_update_app_info(struct qed_dcbx_results *p_data, + struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, + bool app_tlv, bool enable, u8 prio, u8 tc, + enum dcbx_protocol_type type) +{ + enum qed_pci_personality personality; + enum dcbx_protocol_type id; + int i; + + for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) { + id = qed_dcbx_app_update[i].id; + + if (type != id) + continue; + + personality = qed_dcbx_app_update[i].personality; + + qed_dcbx_set_params(p_data, p_hwfn, p_ptt, app_tlv, enable, + prio, tc, type, personality); + } +} + +static bool +qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn, + u32 app_prio_bitmap, + u16 id, enum dcbx_protocol_type *type, bool ieee) +{ + if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) { + *type = DCBX_PROTOCOL_FCOE; + } else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) { + *type = DCBX_PROTOCOL_ROCE; + } else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) { + *type = DCBX_PROTOCOL_ISCSI; + } else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) { + *type = DCBX_PROTOCOL_ETH; + } else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) { + *type = DCBX_PROTOCOL_ROCE_V2; + } else { + *type = DCBX_MAX_PROTOCOL_TYPE; + DP_VERBOSE(p_hwfn, QED_MSG_DCB, + "No action required, App TLV entry = 0x%x\n", + app_prio_bitmap); + return false; + } + + return true; +} + +/* Parse app TLV's to update TC information in hw_info structure for + * reconfiguring QM. Get protocol specific data for PF update ramrod command. + */ +static int +qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, + struct qed_dcbx_results *p_data, + struct dcbx_app_priority_entry *p_tbl, + u32 pri_tc_tbl, int count, u8 dcbx_version) +{ + enum dcbx_protocol_type type; + bool enable, ieee, eth_tlv; + u8 tc, priority_map; + u16 protocol_id; + int priority; + int i; + + DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count); + + ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE); + eth_tlv = false; + /* Parse APP TLV */ + for (i = 0; i < count; i++) { + protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry, + DCBX_APP_PROTOCOL_ID); + priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry, + DCBX_APP_PRI_MAP); + priority = ffs(priority_map) - 1; + if (priority < 0) { + DP_ERR(p_hwfn, "Invalid priority\n"); + return -EINVAL; + } + + tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority); + if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry, + protocol_id, &type, ieee)) { + /* ETH always have the enable bit reset, as it gets + * vlan information per packet. For other protocols, + * should be set according to the dcbx_enabled + * indication, but we only got here if there was an + * app tlv for the protocol, so dcbx must be enabled. + */ + if (type == DCBX_PROTOCOL_ETH) { + enable = false; + eth_tlv = true; + } else { + enable = true; + } + + qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, true, + enable, priority, tc, type); + } + } + + /* If Eth TLV is not detected, use UFP TC as default TC */ + if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) && !eth_tlv) + p_data->arr[DCBX_PROTOCOL_ETH].tc = p_hwfn->ufp_info.tc; + + /* Update ramrod protocol data and hw_info fields + * with default info when corresponding APP TLV's are not detected. + * The enabled field has a different logic for ethernet as only for + * ethernet dcb should disabled by default, as the information arrives + * from the OS (unless an explicit app tlv was present). + */ + tc = p_data->arr[DCBX_PROTOCOL_ETH].tc; + priority = p_data->arr[DCBX_PROTOCOL_ETH].priority; + for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) { + if (p_data->arr[type].update) + continue; + + enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version; + qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, false, enable, + priority, tc, type); + } + + return 0; +} + +/* Parse app TLV's to update TC information in hw_info structure for + * reconfiguring QM. Get protocol specific data for PF update ramrod command. + */ +static int +qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) +{ + struct dcbx_app_priority_feature *p_app; + struct dcbx_app_priority_entry *p_tbl; + struct qed_dcbx_results data = { 0 }; + struct dcbx_ets_feature *p_ets; + struct qed_hw_info *p_info; + u32 pri_tc_tbl, flags; + u8 dcbx_version; + int num_entries; + int rc = 0; + + flags = p_hwfn->p_dcbx_info->operational.flags; + dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION); + + p_app = &p_hwfn->p_dcbx_info->operational.features.app; + p_tbl = p_app->app_pri_tbl; + + p_ets = &p_hwfn->p_dcbx_info->operational.features.ets; + pri_tc_tbl = p_ets->pri_tc_tbl[0]; + + p_info = &p_hwfn->hw_info; + num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES); + + rc = qed_dcbx_process_tlv(p_hwfn, p_ptt, &data, p_tbl, pri_tc_tbl, + num_entries, dcbx_version); + if (rc) + return rc; + + p_info->num_active_tc = QED_MFW_GET_FIELD(p_ets->flags, + DCBX_ETS_MAX_TCS); + p_hwfn->qm_info.ooo_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_OOO_TC); + data.pf_id = p_hwfn->rel_pf_id; + data.dcbx_enabled = !!dcbx_version; + + qed_dcbx_dp_protocol(p_hwfn, &data); + + memcpy(&p_hwfn->p_dcbx_info->results, &data, + sizeof(struct qed_dcbx_results)); + + return 0; +} + +static int +qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, + struct qed_dcbx_mib_meta_data *p_data, + enum qed_mib_read_type type) +{ + u32 prefix_seq_num, suffix_seq_num; + int read_count = 0; + int rc = 0; + + /* The data is considered to be valid only if both sequence numbers are + * the same. + */ + do { + if (type == QED_DCBX_REMOTE_LLDP_MIB) { + qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote, + p_data->addr, p_data->size); + prefix_seq_num = p_data->lldp_remote->prefix_seq_num; + suffix_seq_num = p_data->lldp_remote->suffix_seq_num; + } else { + qed_memcpy_from(p_hwfn, p_ptt, p_data->mib, + p_data->addr, p_data->size); + prefix_seq_num = p_data->mib->prefix_seq_num; + suffix_seq_num = p_data->mib->suffix_seq_num; + } + read_count++; + + DP_VERBOSE(p_hwfn, + QED_MSG_DCB, + "mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n", + type, read_count, prefix_seq_num, suffix_seq_num); + } while ((prefix_seq_num != suffix_seq_num) && + (read_count < QED_DCBX_MAX_MIB_READ_TRY)); + + if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) { + DP_ERR(p_hwfn, + "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n", + type, read_count, prefix_seq_num, suffix_seq_num); + rc = -EIO; + } + + return rc; +} + +static void +qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn, + struct qed_dcbx_app_prio *p_prio, + struct qed_dcbx_results *p_results) +{ + u8 val; + + p_prio->roce = QED_DCBX_INVALID_PRIORITY; + p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY; + p_prio->iscsi = QED_DCBX_INVALID_PRIORITY; + p_prio->fcoe = QED_DCBX_INVALID_PRIORITY; + + if (p_results->arr[DCBX_PROTOCOL_ROCE].update && + p_results->arr[DCBX_PROTOCOL_ROCE].enable) + p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority; + + if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update && + p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) { + val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority; + p_prio->roce_v2 = val; + } + + if (p_results->arr[DCBX_PROTOCOL_ISCSI].update && + p_results->arr[DCBX_PROTOCOL_ISCSI].enable) + p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority; + + if (p_results->arr[DCBX_PROTOCOL_FCOE].update && + p_results->arr[DCBX_PROTOCOL_FCOE].enable) + p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority; + + if (p_results->arr[DCBX_PROTOCOL_ETH].update && + p_results->arr[DCBX_PROTOCOL_ETH].enable) + p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority; + + DP_VERBOSE(p_hwfn, QED_MSG_DCB, + "Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n", + p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe, + p_prio->eth); +} + +static void +qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn, + struct dcbx_app_priority_feature *p_app, + struct dcbx_app_priority_entry *p_tbl, + struct qed_dcbx_params *p_params, bool ieee) +{ + struct qed_app_entry *entry; + u8 pri_map; + int i; + + p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags, + DCBX_APP_WILLING); + p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED); + p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR); + p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags, + DCBX_APP_NUM_ENTRIES); + for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) { + entry = &p_params->app_entry[i]; + if (ieee) { + u8 sf_ieee; + u32 val; + + sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry, + DCBX_APP_SF_IEEE); + switch (sf_ieee) { + case DCBX_APP_SF_IEEE_RESERVED: + /* Old MFW */ + val = QED_MFW_GET_FIELD(p_tbl[i].entry, + DCBX_APP_SF); + entry->sf_ieee = val ? + QED_DCBX_SF_IEEE_TCP_UDP_PORT : + QED_DCBX_SF_IEEE_ETHTYPE; + break; + case DCBX_APP_SF_IEEE_ETHTYPE: + entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE; + break; + case DCBX_APP_SF_IEEE_TCP_PORT: + entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT; + break; + case DCBX_APP_SF_IEEE_UDP_PORT: + entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT; + break; + case DCBX_APP_SF_IEEE_TCP_UDP_PORT: + entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT; + break; + } + } else { + entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry, + DCBX_APP_SF)); + } + + pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP); + entry->prio = ffs(pri_map) - 1; + entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry, + DCBX_APP_PROTOCOL_ID); + qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry, + entry->proto_id, + &entry->proto_type, ieee); + } + + DP_VERBOSE(p_hwfn, QED_MSG_DCB, + "APP params: willing %d, valid %d error = %d\n", + p_params->app_willing, p_params->app_valid, + p_params->app_error); +} + +static void +qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn, + u32 pfc, struct qed_dcbx_params *p_params) +{ + u8 pfc_map; + + p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING); + p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS); + p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED); + pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP); + p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0); + p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1); + p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2); + p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3); + p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4); + p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5); + p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6); + p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7); + + DP_VERBOSE(p_hwfn, QED_MSG_DCB, + "PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n", + p_params->pfc.willing, pfc_map, p_params->pfc.max_tc, + p_params->pfc.enabled); +} + +static void +qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn, + struct dcbx_ets_feature *p_ets, + struct qed_dcbx_params *p_params) +{ + __be32 bw_map[2], tsa_map[2]; + u32 pri_map; + int i; + + p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags, + DCBX_ETS_WILLING); + p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags, + DCBX_ETS_ENABLED); + p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS); + p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags, + DCBX_ETS_MAX_TCS); + DP_VERBOSE(p_hwfn, QED_MSG_DCB, + "ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n", + p_params->ets_willing, p_params->ets_enabled, + p_params->ets_cbs, p_ets->pri_tc_tbl[0], + p_params->max_ets_tc); + + if (p_params->ets_enabled && !p_params->max_ets_tc) { + p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES; + DP_VERBOSE(p_hwfn, QED_MSG_DCB, + "ETS params: max_ets_tc is forced to %d\n", + p_params->max_ets_tc); + } + + /* 8 bit tsa and bw data corresponding to each of the 8 TC's are + * encoded in a type u32 array of size 2. + */ + cpu_to_be32_array(bw_map, p_ets->tc_bw_tbl, 2); + cpu_to_be32_array(tsa_map, p_ets->tc_tsa_tbl, 2); + pri_map = p_ets->pri_tc_tbl[0]; + + for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) { + p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i]; + p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i]; + p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i); + DP_VERBOSE(p_hwfn, QED_MSG_DCB, + "elem %d bw_tbl %x tsa_tbl %x\n", + i, p_params->ets_tc_bw_tbl[i], + p_params->ets_tc_tsa_tbl[i]); + } +} + +static void +qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn, + struct dcbx_app_priority_feature *p_app, + struct dcbx_app_priority_entry *p_tbl, + struct dcbx_ets_feature *p_ets, + u32 pfc, struct qed_dcbx_params *p_params, bool ieee) +{ + qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee); + qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params); + qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params); +} + +static void +qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params) +{ + struct dcbx_features *p_feat; + + p_feat = &p_hwfn->p_dcbx_info->local_admin.features; + qed_dcbx_get_common_params(p_hwfn, &p_feat->app, + p_feat->app.app_pri_tbl, &p_feat->ets, + p_feat->pfc, ¶ms->local.params, false); + params->local.valid = true; +} + +static void +qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params) +{ + struct dcbx_features *p_feat; + + p_feat = &p_hwfn->p_dcbx_info->remote.features; + qed_dcbx_get_common_params(p_hwfn, &p_feat->app, + p_feat->app.app_pri_tbl, &p_feat->ets, + p_feat->pfc, ¶ms->remote.params, false); + params->remote.valid = true; +} + +static void +qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn, + struct qed_dcbx_get *params) +{ + struct qed_dcbx_operational_params *p_operational; + struct qed_dcbx_results *p_results; + struct dcbx_features *p_feat; + bool enabled, err; + u32 flags; + bool val; + + flags = p_hwfn->p_dcbx_info->operational.flags; + + /* If DCBx version is non zero, then negotiation + * was successfuly performed + */ + p_operational = ¶ms->operational; + enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) != + DCBX_CONFIG_VERSION_DISABLED); + if (!enabled) { + p_operational->enabled = enabled; + p_operational->valid = false; + DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx is disabled\n"); + return; + } + + p_feat = &p_hwfn->p_dcbx_info->operational.features; + p_results = &p_hwfn->p_dcbx_info->results; + + val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) == + DCBX_CONFIG_VERSION_IEEE); + p_operational->ieee = val; + val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) == + DCBX_CONFIG_VERSION_CEE); + p_operational->cee = val; + + val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) == + DCBX_CONFIG_VERSION_STATIC); + p_operational->local = val; + + DP_VERBOSE(p_hwfn, QED_MSG_DCB, + "Version support: ieee %d, cee %d, static %d\n", + p_operational->ieee, p_operational->cee, + p_operational->local); + + qed_dcbx_get_common_params(p_hwfn, &p_feat->app, + p_feat->app.app_pri_tbl, &p_feat->ets, + p_feat->pfc, ¶ms->operational.params, + p_operational->ieee); + qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results); + err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR); + p_operational->err = err; + p_operational->enabled = enabled; + p_operational->valid = true; +} + +static void +qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn, + struct qed_dcbx_get *params) +{ + struct lldp_config_params_s *p_local; + + p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE]; + + memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id, + sizeof(p_local->local_chassis_id)); + memcpy(params->lldp_local.local_port_id, p_local->local_port_id, + sizeof(p_local->local_port_id)); +} + +static void +qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn, + struct qed_dcbx_get *params) +{ + struct lldp_status_params_s *p_remote; + + p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE]; + + memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id, + sizeof(p_remote->peer_chassis_id)); + memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id, + sizeof(p_remote->peer_port_id)); +} + +static int +qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *p_params, + enum qed_mib_read_type type) +{ + switch (type) { + case QED_DCBX_REMOTE_MIB: + qed_dcbx_get_remote_params(p_hwfn, p_params); + break; + case QED_DCBX_LOCAL_MIB: + qed_dcbx_get_local_params(p_hwfn, p_params); + break; + case QED_DCBX_OPERATIONAL_MIB: + qed_dcbx_get_operational_params(p_hwfn, p_params); + break; + case QED_DCBX_REMOTE_LLDP_MIB: + qed_dcbx_get_remote_lldp_params(p_hwfn, p_params); + break; + case QED_DCBX_LOCAL_LLDP_MIB: + qed_dcbx_get_local_lldp_params(p_hwfn, p_params); + break; + default: + DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type); + return -EINVAL; + } + + return 0; +} + +static int +qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) +{ + struct qed_dcbx_mib_meta_data data; + + memset(&data, 0, sizeof(data)); + data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port, + lldp_config_params); + data.lldp_local = p_hwfn->p_dcbx_info->lldp_local; + data.size = sizeof(struct lldp_config_params_s); + qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size); + + return 0; +} + +static int +qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, + enum qed_mib_read_type type) +{ + struct qed_dcbx_mib_meta_data data; + int rc = 0; + + memset(&data, 0, sizeof(data)); + data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port, + lldp_status_params); + data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote; + data.size = sizeof(struct lldp_status_params_s); + rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type); + + return rc; +} + +static int +qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, + enum qed_mib_read_type type) +{ + struct qed_dcbx_mib_meta_data data; + int rc = 0; + + memset(&data, 0, sizeof(data)); + data.addr = p_hwfn->mcp_info->port_addr + + offsetof(struct public_port, operational_dcbx_mib); + data.mib = &p_hwfn->p_dcbx_info->operational; + data.size = sizeof(struct dcbx_mib); + rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type); + + return rc; +} + +static int +qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, enum qed_mib_read_type type) +{ + struct qed_dcbx_mib_meta_data data; + int rc = 0; + + memset(&data, 0, sizeof(data)); + data.addr = p_hwfn->mcp_info->port_addr + + offsetof(struct public_port, remote_dcbx_mib); + data.mib = &p_hwfn->p_dcbx_info->remote; + data.size = sizeof(struct dcbx_mib); + rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type); + + return rc; +} + +static int +qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) +{ + struct qed_dcbx_mib_meta_data data; + + memset(&data, 0, sizeof(data)); + data.addr = p_hwfn->mcp_info->port_addr + + offsetof(struct public_port, local_admin_dcbx_mib); + data.local_admin = &p_hwfn->p_dcbx_info->local_admin; + data.size = sizeof(struct dcbx_local_params); + qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size); + + return 0; +} + +static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, enum qed_mib_read_type type) +{ + int rc = -EINVAL; + + switch (type) { + case QED_DCBX_OPERATIONAL_MIB: + rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type); + break; + case QED_DCBX_REMOTE_MIB: + rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type); + break; + case QED_DCBX_LOCAL_MIB: + rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt); + break; + case QED_DCBX_REMOTE_LLDP_MIB: + rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type); + break; + case QED_DCBX_LOCAL_LLDP_MIB: + rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt); + break; + default: + DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type); + } + + return rc; +} + +static void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type) +{ + struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common; + void *cookie = hwfn->cdev->ops_cookie; + + if (cookie && op->dcbx_aen) + op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type); +} + +/* Read updated MIB. + * Reconfigure QM and invoke PF update ramrod command if operational MIB + * change is detected. + */ +int +qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn, + struct qed_ptt *p_ptt, enum qed_mib_read_type type) +{ + int rc = 0; + + rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type); + if (rc) + return rc; + + if (type == QED_DCBX_OPERATIONAL_MIB) { + rc = qed_dcbx_process_mib_info(p_hwfn, p_ptt); + if (!rc) { + /* reconfigure tcs of QM queues according + * to negotiation results + */ + qed_qm_reconf(p_hwfn, p_ptt); + + /* update storm FW with negotiation results */ + qed_sp_pf_update(p_hwfn); + + /* for roce PFs, we may want to enable/disable DPM + * when DCBx change occurs + */ + if (p_hwfn->hw_info.personality == + QED_PCI_ETH_ROCE) + qed_roce_dpm_dcbx(p_hwfn, p_ptt); + } + } + + qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type); + + if (type == QED_DCBX_OPERATIONAL_MIB) { + struct qed_dcbx_results *p_data; + u16 val; + + /* Configure in NIG which protocols support EDPM and should + * honor PFC. + */ + p_data = &p_hwfn->p_dcbx_info->results; + val = (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE].tc) | + (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE_V2].tc); + val <<= NIG_REG_TX_EDPM_CTRL_TX_EDPM_TC_EN_SHIFT; + val |= NIG_REG_TX_EDPM_CTRL_TX_EDPM_EN; + qed_wr(p_hwfn, p_ptt, NIG_REG_TX_EDPM_CTRL, val); + } + + qed_dcbx_aen(p_hwfn, type); + + return rc; +} + +int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn) +{ + p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL); + if (!p_hwfn->p_dcbx_info) + return -ENOMEM; + + return 0; +} + +void qed_dcbx_info_free(struct qed_hwfn *p_hwfn) +{ + kfree(p_hwfn->p_dcbx_info); + p_hwfn->p_dcbx_info = NULL; +} + +static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data, + struct qed_dcbx_results *p_src, + enum dcbx_protocol_type type) +{ + p_data->dcb_enable_flag = p_src->arr[type].enable; + p_data->dcb_priority = p_src->arr[type].priority; + p_data->dcb_tc = p_src->arr[type].tc; + p_data->dcb_dont_add_vlan0 = p_src->arr[type].dont_add_vlan0; +} + +/* Set pf update ramrod command params */ +void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src, + struct pf_update_ramrod_data *p_dest) +{ + struct protocol_dcb_data *p_dcb_data; + u8 update_flag; + + update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update; + p_dest->update_fcoe_dcb_data_mode = update_flag; + + update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update; + p_dest->update_roce_dcb_data_mode = update_flag; + + update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update; + p_dest->update_rroce_dcb_data_mode = update_flag; + + update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update; + p_dest->update_iscsi_dcb_data_mode = update_flag; + update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update; + p_dest->update_eth_dcb_data_mode = update_flag; + + p_dcb_data = &p_dest->fcoe_dcb_data; + qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE); + p_dcb_data = &p_dest->roce_dcb_data; + qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE); + p_dcb_data = &p_dest->rroce_dcb_data; + qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE_V2); + p_dcb_data = &p_dest->iscsi_dcb_data; + qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI); + p_dcb_data = &p_dest->eth_dcb_data; + qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH); +} + +u8 qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri) +{ + struct qed_dcbx_get *dcbx_info = &p_hwfn->p_dcbx_info->get; + + if (pri >= QED_MAX_PFC_PRIORITIES) { + DP_ERR(p_hwfn, "Invalid priority %d\n", pri); + return QED_DCBX_DEFAULT_TC; + } + + if (!dcbx_info->operational.valid) { + DP_VERBOSE(p_hwfn, QED_MSG_DCB, + "Dcbx parameters not available\n"); + return QED_DCBX_DEFAULT_TC; + } + + return dcbx_info->operational.params.ets_pri_tc_tbl[pri]; +} + +#ifdef CONFIG_DCB +static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn, + struct qed_dcbx_get *p_get, + enum qed_mib_read_type type) +{ + struct qed_ptt *p_ptt; + int rc; + + if (IS_VF(p_hwfn->cdev)) + return -EINVAL; + + p_ptt = qed_ptt_acquire(p_hwfn); + if (!p_ptt) + return -EBUSY; + + rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type); + if (rc) + goto out; + + rc = qed_dcbx_get_params(p_hwfn, p_get, type); + +out: + qed_ptt_release(p_hwfn, p_ptt); + return rc; +} + +static void +qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn, + u32 *pfc, struct qed_dcbx_params *p_params) +{ + u8 pfc_map = 0; + int i; + + *pfc &= ~DCBX_PFC_ERROR_MASK; + + if (p_params->pfc.willing) + *pfc |= DCBX_PFC_WILLING_MASK; + else + *pfc &= ~DCBX_PFC_WILLING_MASK; + + if (p_params->pfc.enabled) + *pfc |= DCBX_PFC_ENABLED_MASK; + else + *pfc &= ~DCBX_PFC_ENABLED_MASK; + + *pfc &= ~DCBX_PFC_CAPS_MASK; + *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT; + + for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) + if (p_params->pfc.prio[i]) + pfc_map |= BIT(i); + + *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK; + *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT); + + DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc); +} + +static void +qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn, + struct dcbx_ets_feature *p_ets, + struct qed_dcbx_params *p_params) +{ + __be32 bw_map[2], tsa_map[2]; + u32 val; + int i; + + if (p_params->ets_willing) + p_ets->flags |= DCBX_ETS_WILLING_MASK; + else + p_ets->flags &= ~DCBX_ETS_WILLING_MASK; + + if (p_params->ets_cbs) + p_ets->flags |= DCBX_ETS_CBS_MASK; + else + p_ets->flags &= ~DCBX_ETS_CBS_MASK; + + if (p_params->ets_enabled) + p_ets->flags |= DCBX_ETS_ENABLED_MASK; + else + p_ets->flags &= ~DCBX_ETS_ENABLED_MASK; + + p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK; + p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT; + + p_ets->pri_tc_tbl[0] = 0; + + for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) { + ((u8 *)bw_map)[i] = p_params->ets_tc_bw_tbl[i]; + ((u8 *)tsa_map)[i] = p_params->ets_tc_tsa_tbl[i]; + + /* Copy the priority value to the corresponding 4 bits in the + * traffic class table. + */ + val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4)); + p_ets->pri_tc_tbl[0] |= val; + } + + be32_to_cpu_array(p_ets->tc_bw_tbl, bw_map, 2); + be32_to_cpu_array(p_ets->tc_tsa_tbl, tsa_map, 2); +} + +static void +qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn, + struct dcbx_app_priority_feature *p_app, + struct qed_dcbx_params *p_params, bool ieee) +{ + u32 *entry; + int i; + + if (p_params->app_willing) + p_app->flags |= DCBX_APP_WILLING_MASK; + else + p_app->flags &= ~DCBX_APP_WILLING_MASK; + + if (p_params->app_valid) + p_app->flags |= DCBX_APP_ENABLED_MASK; + else + p_app->flags &= ~DCBX_APP_ENABLED_MASK; + + p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK; + p_app->flags |= (u32)p_params->num_app_entries << + DCBX_APP_NUM_ENTRIES_SHIFT; + + for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) { + entry = &p_app->app_pri_tbl[i].entry; + *entry = 0; + if (ieee) { + *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK); + switch (p_params->app_entry[i].sf_ieee) { + case QED_DCBX_SF_IEEE_ETHTYPE: + *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE << + DCBX_APP_SF_IEEE_SHIFT); + *entry |= ((u32)DCBX_APP_SF_ETHTYPE << + DCBX_APP_SF_SHIFT); + break; + case QED_DCBX_SF_IEEE_TCP_PORT: + *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT << + DCBX_APP_SF_IEEE_SHIFT); + *entry |= ((u32)DCBX_APP_SF_PORT << + DCBX_APP_SF_SHIFT); + break; + case QED_DCBX_SF_IEEE_UDP_PORT: + *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT << + DCBX_APP_SF_IEEE_SHIFT); + *entry |= ((u32)DCBX_APP_SF_PORT << + DCBX_APP_SF_SHIFT); + break; + case QED_DCBX_SF_IEEE_TCP_UDP_PORT: + *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT << + DCBX_APP_SF_IEEE_SHIFT); + *entry |= ((u32)DCBX_APP_SF_PORT << + DCBX_APP_SF_SHIFT); + break; + } + } else { + *entry &= ~DCBX_APP_SF_MASK; + if (p_params->app_entry[i].ethtype) + *entry |= ((u32)DCBX_APP_SF_ETHTYPE << + DCBX_APP_SF_SHIFT); + else + *entry |= ((u32)DCBX_APP_SF_PORT << + DCBX_APP_SF_SHIFT); + } + + *entry &= ~DCBX_APP_PROTOCOL_ID_MASK; + *entry |= ((u32)p_params->app_entry[i].proto_id << + DCBX_APP_PROTOCOL_ID_SHIFT); + *entry &= ~DCBX_APP_PRI_MAP_MASK; + *entry |= ((u32)(p_params->app_entry[i].prio) << + DCBX_APP_PRI_MAP_SHIFT); + } +} + +static void +qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn, + struct dcbx_local_params *local_admin, + struct qed_dcbx_set *params) +{ + bool ieee = false; + + local_admin->flags = 0; + memcpy(&local_admin->features, + &p_hwfn->p_dcbx_info->operational.features, + sizeof(local_admin->features)); + + if (params->enabled) { + local_admin->config = params->ver_num; + ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE); + } else { + local_admin->config = DCBX_CONFIG_VERSION_DISABLED; + } + + DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx version = %d\n", + local_admin->config); + + if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG) + qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc, + ¶ms->config.params); + + if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG) + qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets, + ¶ms->config.params); + + if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG) + qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app, + ¶ms->config.params, ieee); +} + +int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, + struct qed_dcbx_set *params, bool hw_commit) +{ + struct dcbx_local_params local_admin; + struct qed_dcbx_mib_meta_data data; + u32 resp = 0, param = 0; + int rc = 0; + + if (!hw_commit) { + memcpy(&p_hwfn->p_dcbx_info->set, params, + sizeof(struct qed_dcbx_set)); + return 0; + } + + /* clear set-parmas cache */ + memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set)); + + memset(&local_admin, 0, sizeof(local_admin)); + qed_dcbx_set_local_params(p_hwfn, &local_admin, params); + + data.addr = p_hwfn->mcp_info->port_addr + + offsetof(struct public_port, local_admin_dcbx_mib); + data.local_admin = &local_admin; + data.size = sizeof(struct dcbx_local_params); + qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size); + + rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX, + 1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, ¶m); + if (rc) + DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n"); + + return rc; +} + +int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn, + struct qed_dcbx_set *params) +{ + struct qed_dcbx_get *dcbx_info; + int rc; + + if (p_hwfn->p_dcbx_info->set.config.valid) { + memcpy(params, &p_hwfn->p_dcbx_info->set, + sizeof(struct qed_dcbx_set)); + return 0; + } + + dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL); + if (!dcbx_info) + return -ENOMEM; + + rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB); + if (rc) { + kfree(dcbx_info); + return rc; + } + + p_hwfn->p_dcbx_info->set.override_flags = 0; + p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED; + if (dcbx_info->operational.cee) + p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE; + if (dcbx_info->operational.ieee) + p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE; + if (dcbx_info->operational.local) + p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC; + + p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled; + BUILD_BUG_ON(sizeof(dcbx_info->operational.params) != + sizeof(p_hwfn->p_dcbx_info->set.config.params)); + memcpy(&p_hwfn->p_dcbx_info->set.config.params, + &dcbx_info->operational.params, + sizeof(p_hwfn->p_dcbx_info->set.config.params)); + p_hwfn->p_dcbx_info->set.config.valid = true; + + memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set)); + + kfree(dcbx_info); + + return 0; +} + +static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn, + enum qed_mib_read_type type) +{ + struct qed_dcbx_get *dcbx_info; + + dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_ATOMIC); + if (!dcbx_info) + return NULL; + + if (qed_dcbx_query_params(hwfn, dcbx_info, type)) { + kfree(dcbx_info); + return NULL; + } + + if ((type == QED_DCBX_OPERATIONAL_MIB) && + !dcbx_info->operational.enabled) { + DP_INFO(hwfn, "DCBX is not enabled/operational\n"); + kfree(dcbx_info); + return NULL; + } + + return dcbx_info; +} + +static u8 qed_dcbnl_getstate(struct qed_dev *cdev) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + bool enabled; + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return 0; + + enabled = dcbx_info->operational.enabled; + DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled); + kfree(dcbx_info); + + return enabled; +} + +static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_set dcbx_set; + struct qed_ptt *ptt; + int rc; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state); + + memset(&dcbx_set, 0, sizeof(dcbx_set)); + rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); + if (rc) + return 1; + + dcbx_set.enabled = !!state; + + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return 1; + + rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); + + qed_ptt_release(hwfn, ptt); + + return rc ? 1 : 0; +} + +static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type, + u8 *pgid, u8 *bw_pct, u8 *up_map) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc); + *prio_type = *pgid = *bw_pct = *up_map = 0; + if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) { + DP_INFO(hwfn, "Invalid tc %d\n", tc); + return; + } + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return; + + *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc]; + kfree(dcbx_info); +} + +static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + + *bw_pct = 0; + DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid); + if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) { + DP_INFO(hwfn, "Invalid pgid %d\n", pgid); + return; + } + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return; + + *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid]; + DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct); + kfree(dcbx_info); +} + +static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio, + u8 *bwg_id, u8 *bw_pct, u8 *up_map) +{ + DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n"); + *prio = *bwg_id = *bw_pct = *up_map = 0; +} + +static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev, + int bwg_id, u8 *bw_pct) +{ + DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n"); + *bw_pct = 0; +} + +static void qed_dcbnl_getpfccfg(struct qed_dev *cdev, + int priority, u8 *setting) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority); + if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) { + DP_INFO(hwfn, "Invalid priority %d\n", priority); + return; + } + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return; + + *setting = dcbx_info->operational.params.pfc.prio[priority]; + DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting); + kfree(dcbx_info); +} + +static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_set dcbx_set; + struct qed_ptt *ptt; + int rc; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n", + priority, setting); + if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) { + DP_INFO(hwfn, "Invalid priority %d\n", priority); + return; + } + + memset(&dcbx_set, 0, sizeof(dcbx_set)); + rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); + if (rc) + return; + + dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG; + dcbx_set.config.params.pfc.prio[priority] = !!setting; + + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return; + + rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); + + qed_ptt_release(hwfn, ptt); +} + +static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + int rc = 0; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid); + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return 1; + + switch (capid) { + case DCB_CAP_ATTR_PG: + case DCB_CAP_ATTR_PFC: + case DCB_CAP_ATTR_UP2TC: + case DCB_CAP_ATTR_GSP: + *cap = true; + break; + case DCB_CAP_ATTR_PG_TCS: + case DCB_CAP_ATTR_PFC_TCS: + *cap = 0x80; + break; + case DCB_CAP_ATTR_DCBX: + *cap = (DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_VER_IEEE | + DCB_CAP_DCBX_STATIC); + break; + default: + *cap = false; + rc = 1; + } + + DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap); + kfree(dcbx_info); + + return rc; +} + +static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + int rc = 0; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid); + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return -EINVAL; + + switch (tcid) { + case DCB_NUMTCS_ATTR_PG: + *num = dcbx_info->operational.params.max_ets_tc; + break; + case DCB_NUMTCS_ATTR_PFC: + *num = dcbx_info->operational.params.pfc.max_tc; + break; + default: + rc = -EINVAL; + } + + kfree(dcbx_info); + DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num); + + return rc; +} + +static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + bool enabled; + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return 0; + + enabled = dcbx_info->operational.params.pfc.enabled; + DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled); + kfree(dcbx_info); + + return enabled; +} + +static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + u8 mode = 0; + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return 0; + + if (dcbx_info->operational.ieee) + mode |= DCB_CAP_DCBX_VER_IEEE; + if (dcbx_info->operational.cee) + mode |= DCB_CAP_DCBX_VER_CEE; + if (dcbx_info->operational.local) + mode |= DCB_CAP_DCBX_STATIC; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode); + kfree(dcbx_info); + + return mode; +} + +static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev, + int tc, + u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_set dcbx_set; + struct qed_ptt *ptt; + int rc; + + DP_VERBOSE(hwfn, QED_MSG_DCB, + "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n", + tc, pri_type, pgid, bw_pct, up_map); + + if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) { + DP_INFO(hwfn, "Invalid tc %d\n", tc); + return; + } + + memset(&dcbx_set, 0, sizeof(dcbx_set)); + rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); + if (rc) + return; + + dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG; + dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid; + + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return; + + rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); + + qed_ptt_release(hwfn, ptt); +} + +static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio, + u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map) +{ + DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n"); +} + +static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_set dcbx_set; + struct qed_ptt *ptt; + int rc; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct); + if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) { + DP_INFO(hwfn, "Invalid pgid %d\n", pgid); + return; + } + + memset(&dcbx_set, 0, sizeof(dcbx_set)); + rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); + if (rc) + return; + + dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG; + dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct; + + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return; + + rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); + + qed_ptt_release(hwfn, ptt); +} + +static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct) +{ + DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n"); +} + +static u8 qed_dcbnl_setall(struct qed_dev *cdev) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_set dcbx_set; + struct qed_ptt *ptt; + int rc; + + memset(&dcbx_set, 0, sizeof(dcbx_set)); + rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); + if (rc) + return 1; + + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return 1; + + rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1); + + qed_ptt_release(hwfn, ptt); + + return rc; +} + +static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_set dcbx_set; + struct qed_ptt *ptt; + int rc; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num); + memset(&dcbx_set, 0, sizeof(dcbx_set)); + rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); + if (rc) + return 1; + + switch (tcid) { + case DCB_NUMTCS_ATTR_PG: + dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG; + dcbx_set.config.params.max_ets_tc = num; + break; + case DCB_NUMTCS_ATTR_PFC: + dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG; + dcbx_set.config.params.pfc.max_tc = num; + break; + default: + DP_INFO(hwfn, "Invalid tcid %d\n", tcid); + return -EINVAL; + } + + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return -EINVAL; + + rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); + + qed_ptt_release(hwfn, ptt); + + return 0; +} + +static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_set dcbx_set; + struct qed_ptt *ptt; + int rc; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state); + + memset(&dcbx_set, 0, sizeof(dcbx_set)); + rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); + if (rc) + return; + + dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG; + dcbx_set.config.params.pfc.enabled = !!state; + + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return; + + rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); + + qed_ptt_release(hwfn, ptt); +} + +static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + struct qed_app_entry *entry; + bool ethtype; + u8 prio = 0; + int i; + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return -EINVAL; + + ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE); + for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) { + entry = &dcbx_info->operational.params.app_entry[i]; + if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) { + prio = entry->prio; + break; + } + } + + if (i == QED_DCBX_MAX_APP_PROTOCOL) { + DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval); + kfree(dcbx_info); + return -EINVAL; + } + + kfree(dcbx_info); + + return prio; +} + +static int qed_dcbnl_setapp(struct qed_dev *cdev, + u8 idtype, u16 idval, u8 pri_map) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_set dcbx_set; + struct qed_app_entry *entry; + struct qed_ptt *ptt; + bool ethtype; + int rc, i; + + memset(&dcbx_set, 0, sizeof(dcbx_set)); + rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); + if (rc) + return -EINVAL; + + ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE); + for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) { + entry = &dcbx_set.config.params.app_entry[i]; + if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) + break; + /* First empty slot */ + if (!entry->proto_id) { + dcbx_set.config.params.num_app_entries++; + break; + } + } + + if (i == QED_DCBX_MAX_APP_PROTOCOL) { + DP_ERR(cdev, "App table is full\n"); + return -EBUSY; + } + + dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG; + dcbx_set.config.params.app_entry[i].ethtype = ethtype; + dcbx_set.config.params.app_entry[i].proto_id = idval; + dcbx_set.config.params.app_entry[i].prio = pri_map; + + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return -EBUSY; + + rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); + + qed_ptt_release(hwfn, ptt); + + return rc; +} + +static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_set dcbx_set; + struct qed_ptt *ptt; + int rc; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode); + + if (!(mode & DCB_CAP_DCBX_VER_IEEE) && + !(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) { + DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n"); + return 1; + } + + memset(&dcbx_set, 0, sizeof(dcbx_set)); + rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); + if (rc) + return 1; + + dcbx_set.ver_num = 0; + if (mode & DCB_CAP_DCBX_VER_CEE) { + dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE; + dcbx_set.enabled = true; + } + + if (mode & DCB_CAP_DCBX_VER_IEEE) { + dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE; + dcbx_set.enabled = true; + } + + if (mode & DCB_CAP_DCBX_STATIC) { + dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC; + dcbx_set.enabled = true; + } + + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return 1; + + rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); + + qed_ptt_release(hwfn, ptt); + + return rc; +} + +static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id = %d\n", featid); + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return 1; + + *flags = 0; + switch (featid) { + case DCB_FEATCFG_ATTR_PG: + if (dcbx_info->operational.params.ets_enabled) + *flags = DCB_FEATCFG_ENABLE; + else + *flags = DCB_FEATCFG_ERROR; + break; + case DCB_FEATCFG_ATTR_PFC: + if (dcbx_info->operational.params.pfc.enabled) + *flags = DCB_FEATCFG_ENABLE; + else + *flags = DCB_FEATCFG_ERROR; + break; + case DCB_FEATCFG_ATTR_APP: + if (dcbx_info->operational.params.app_valid) + *flags = DCB_FEATCFG_ENABLE; + else + *flags = DCB_FEATCFG_ERROR; + break; + default: + DP_INFO(hwfn, "Invalid feature-ID %d\n", featid); + kfree(dcbx_info); + return 1; + } + + DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags); + kfree(dcbx_info); + + return 0; +} + +static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_set dcbx_set; + bool enabled, willing; + struct qed_ptt *ptt; + int rc; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n", + featid, flags); + memset(&dcbx_set, 0, sizeof(dcbx_set)); + rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); + if (rc) + return 1; + + enabled = !!(flags & DCB_FEATCFG_ENABLE); + willing = !!(flags & DCB_FEATCFG_WILLING); + switch (featid) { + case DCB_FEATCFG_ATTR_PG: + dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG; + dcbx_set.config.params.ets_enabled = enabled; + dcbx_set.config.params.ets_willing = willing; + break; + case DCB_FEATCFG_ATTR_PFC: + dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG; + dcbx_set.config.params.pfc.enabled = enabled; + dcbx_set.config.params.pfc.willing = willing; + break; + case DCB_FEATCFG_ATTR_APP: + dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG; + dcbx_set.config.params.app_willing = willing; + break; + default: + DP_INFO(hwfn, "Invalid feature-ID %d\n", featid); + return 1; + } + + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return 1; + + rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); + + qed_ptt_release(hwfn, ptt); + + return 0; +} + +static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev, + struct dcb_peer_app_info *info, + u16 *app_count) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB); + if (!dcbx_info) + return -EINVAL; + + info->willing = dcbx_info->remote.params.app_willing; + info->error = dcbx_info->remote.params.app_error; + *app_count = dcbx_info->remote.params.num_app_entries; + kfree(dcbx_info); + + return 0; +} + +static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev, + struct dcb_app *table) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + int i; + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB); + if (!dcbx_info) + return -EINVAL; + + for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) { + if (dcbx_info->remote.params.app_entry[i].ethtype) + table[i].selector = DCB_APP_IDTYPE_ETHTYPE; + else + table[i].selector = DCB_APP_IDTYPE_PORTNUM; + table[i].priority = dcbx_info->remote.params.app_entry[i].prio; + table[i].protocol = + dcbx_info->remote.params.app_entry[i].proto_id; + } + + kfree(dcbx_info); + + return 0; +} + +static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + int i; + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB); + if (!dcbx_info) + return -EINVAL; + + for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) + if (dcbx_info->remote.params.pfc.prio[i]) + pfc->pfc_en |= BIT(i); + + pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc; + DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n", + pfc->pfc_en, pfc->tcs_supported); + kfree(dcbx_info); + + return 0; +} + +static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + int i; + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB); + if (!dcbx_info) + return -EINVAL; + + pg->willing = dcbx_info->remote.params.ets_willing; + for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) { + pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i]; + pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i]; + } + + DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing); + kfree(dcbx_info); + + return 0; +} + +static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev, + struct ieee_pfc *pfc, bool remote) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_params *params; + struct qed_dcbx_get *dcbx_info; + int rc, i; + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return -EINVAL; + + if (!dcbx_info->operational.ieee) { + DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n"); + kfree(dcbx_info); + return -EINVAL; + } + + if (remote) { + memset(dcbx_info, 0, sizeof(*dcbx_info)); + rc = qed_dcbx_query_params(hwfn, dcbx_info, + QED_DCBX_REMOTE_MIB); + if (rc) { + kfree(dcbx_info); + return -EINVAL; + } + + params = &dcbx_info->remote.params; + } else { + params = &dcbx_info->operational.params; + } + + pfc->pfc_cap = params->pfc.max_tc; + pfc->pfc_en = 0; + for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) + if (params->pfc.prio[i]) + pfc->pfc_en |= BIT(i); + + kfree(dcbx_info); + + return 0; +} + +static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc) +{ + return qed_dcbnl_get_ieee_pfc(cdev, pfc, false); +} + +static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + struct qed_dcbx_set dcbx_set; + struct qed_ptt *ptt; + int rc, i; + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return -EINVAL; + + if (!dcbx_info->operational.ieee) { + DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n"); + kfree(dcbx_info); + return -EINVAL; + } + + kfree(dcbx_info); + + memset(&dcbx_set, 0, sizeof(dcbx_set)); + rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); + if (rc) + return -EINVAL; + + dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG; + for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) + dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i)); + + dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap; + + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return -EINVAL; + + rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); + + qed_ptt_release(hwfn, ptt); + + return rc; +} + +static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev, + struct ieee_ets *ets, bool remote) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + struct qed_dcbx_params *params; + int rc; + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return -EINVAL; + + if (!dcbx_info->operational.ieee) { + DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n"); + kfree(dcbx_info); + return -EINVAL; + } + + if (remote) { + memset(dcbx_info, 0, sizeof(*dcbx_info)); + rc = qed_dcbx_query_params(hwfn, dcbx_info, + QED_DCBX_REMOTE_MIB); + if (rc) { + kfree(dcbx_info); + return -EINVAL; + } + + params = &dcbx_info->remote.params; + } else { + params = &dcbx_info->operational.params; + } + + ets->ets_cap = params->max_ets_tc; + ets->willing = params->ets_willing; + ets->cbs = params->ets_cbs; + memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw)); + memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa)); + memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc)); + kfree(dcbx_info); + + return 0; +} + +static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets) +{ + return qed_dcbnl_get_ieee_ets(cdev, ets, false); +} + +static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + struct qed_dcbx_set dcbx_set; + struct qed_ptt *ptt; + int rc; + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return -EINVAL; + + if (!dcbx_info->operational.ieee) { + DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n"); + kfree(dcbx_info); + return -EINVAL; + } + + kfree(dcbx_info); + + memset(&dcbx_set, 0, sizeof(dcbx_set)); + rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); + if (rc) + return -EINVAL; + + dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG; + dcbx_set.config.params.max_ets_tc = ets->ets_cap; + dcbx_set.config.params.ets_willing = ets->willing; + dcbx_set.config.params.ets_cbs = ets->cbs; + memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw, + sizeof(ets->tc_tx_bw)); + memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa, + sizeof(ets->tc_tsa)); + memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc, + sizeof(ets->prio_tc)); + + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return -EINVAL; + + rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); + + qed_ptt_release(hwfn, ptt); + + return rc; +} + +static int +qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets) +{ + return qed_dcbnl_get_ieee_ets(cdev, ets, true); +} + +static int +qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc) +{ + return qed_dcbnl_get_ieee_pfc(cdev, pfc, true); +} + +static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee) +{ + switch (selector) { + case IEEE_8021QAZ_APP_SEL_ETHERTYPE: + *sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE; + break; + case IEEE_8021QAZ_APP_SEL_STREAM: + *sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT; + break; + case IEEE_8021QAZ_APP_SEL_DGRAM: + *sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT; + break; + case IEEE_8021QAZ_APP_SEL_ANY: + *sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + struct qed_app_entry *entry; + u8 prio = 0; + u8 sf_ieee; + int i; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n", + app->selector, app->protocol); + + if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) { + DP_INFO(cdev, "Invalid selector field value %d\n", + app->selector); + return -EINVAL; + } + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return -EINVAL; + + if (!dcbx_info->operational.ieee) { + DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n"); + kfree(dcbx_info); + return -EINVAL; + } + + for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) { + entry = &dcbx_info->operational.params.app_entry[i]; + if ((entry->sf_ieee == sf_ieee) && + (entry->proto_id == app->protocol)) { + prio = entry->prio; + break; + } + } + + if (i == QED_DCBX_MAX_APP_PROTOCOL) { + DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector, + app->protocol); + kfree(dcbx_info); + return -EINVAL; + } + + app->priority = ffs(prio) - 1; + + kfree(dcbx_info); + + return 0; +} + +static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app) +{ + struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); + struct qed_dcbx_get *dcbx_info; + struct qed_dcbx_set dcbx_set; + struct qed_app_entry *entry; + struct qed_ptt *ptt; + u8 sf_ieee; + int rc, i; + + DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n", + app->selector, app->protocol, app->priority); + if (app->priority >= QED_MAX_PFC_PRIORITIES) { + DP_INFO(hwfn, "Invalid priority %d\n", app->priority); + return -EINVAL; + } + + if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) { + DP_INFO(cdev, "Invalid selector field value %d\n", + app->selector); + return -EINVAL; + } + + dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); + if (!dcbx_info) + return -EINVAL; + + if (!dcbx_info->operational.ieee) { + DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n"); + kfree(dcbx_info); + return -EINVAL; + } + + kfree(dcbx_info); + + memset(&dcbx_set, 0, sizeof(dcbx_set)); + rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); + if (rc) + return -EINVAL; + + for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) { + entry = &dcbx_set.config.params.app_entry[i]; + if ((entry->sf_ieee == sf_ieee) && + (entry->proto_id == app->protocol)) + break; + /* First empty slot */ + if (!entry->proto_id) { + dcbx_set.config.params.num_app_entries++; + break; + } + } + + if (i == QED_DCBX_MAX_APP_PROTOCOL) { + DP_ERR(cdev, "App table is full\n"); + return -EBUSY; + } + + dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG; + dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee; + dcbx_set.config.params.app_entry[i].proto_id = app->protocol; + dcbx_set.config.params.app_entry[i].prio = BIT(app->priority); + + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return -EBUSY; + + rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); + + qed_ptt_release(hwfn, ptt); + + return rc; +} + +const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = { + .getstate = qed_dcbnl_getstate, + .setstate = qed_dcbnl_setstate, + .getpgtccfgtx = qed_dcbnl_getpgtccfgtx, + .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx, + .getpgtccfgrx = qed_dcbnl_getpgtccfgrx, + .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx, + .getpfccfg = qed_dcbnl_getpfccfg, + .setpfccfg = qed_dcbnl_setpfccfg, + .getcap = qed_dcbnl_getcap, + .getnumtcs = qed_dcbnl_getnumtcs, + .getpfcstate = qed_dcbnl_getpfcstate, + .getdcbx = qed_dcbnl_getdcbx, + .setpgtccfgtx = qed_dcbnl_setpgtccfgtx, + .setpgtccfgrx = qed_dcbnl_setpgtccfgrx, + .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx, + .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx, + .setall = qed_dcbnl_setall, + .setnumtcs = qed_dcbnl_setnumtcs, + .setpfcstate = qed_dcbnl_setpfcstate, + .setapp = qed_dcbnl_setapp, + .setdcbx = qed_dcbnl_setdcbx, + .setfeatcfg = qed_dcbnl_setfeatcfg, + .getfeatcfg = qed_dcbnl_getfeatcfg, + .getapp = qed_dcbnl_getapp, + .peer_getappinfo = qed_dcbnl_peer_getappinfo, + .peer_getapptable = qed_dcbnl_peer_getapptable, + .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc, + .cee_peer_getpg = qed_dcbnl_cee_peer_getpg, + .ieee_getpfc = qed_dcbnl_ieee_getpfc, + .ieee_setpfc = qed_dcbnl_ieee_setpfc, + .ieee_getets = qed_dcbnl_ieee_getets, + .ieee_setets = qed_dcbnl_ieee_setets, + .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc, + .ieee_peer_getets = qed_dcbnl_ieee_peer_getets, + .ieee_getapp = qed_dcbnl_ieee_getapp, + .ieee_setapp = qed_dcbnl_ieee_setapp, +}; + +#endif |