1/* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2008-2017 Cisco Systems, Inc. All rights reserved. 3 * Copyright 2007 Nuova Systems, Inc. All rights reserved. 4 */ 5 6#include "enic.h" 7#include "enic_compat.h" 8#include "wq_enet_desc.h" 9#include "rq_enet_desc.h" 10#include "cq_enet_desc.h" 11#include "vnic_resource.h" 12#include "vnic_enet.h" 13#include "vnic_dev.h" 14#include "vnic_wq.h" 15#include "vnic_rq.h" 16#include "vnic_cq.h" 17#include "vnic_intr.h" 18#include "vnic_stats.h" 19#include "vnic_nic.h" 20#include "vnic_rss.h" 21#include "enic_res.h" 22#include "enic.h" 23 24int enic_get_vnic_config(struct enic *enic) 25{ 26 struct vnic_enet_config *c = &enic->config; 27 int err; 28 err = vnic_dev_get_mac_addr(enic->vdev, enic->mac_addr); 29 if (err) { 30 dev_err(enic_get_dev(enic), 31 "Error getting MAC addr, %d\n", err); 32 return err; 33 } 34 35#define GET_CONFIG(m) \ 36 do { \ 37 err = vnic_dev_spec(enic->vdev, \ 38 offsetof(struct vnic_enet_config, m), \ 39 sizeof(c->m), &c->m); \ 40 if (err) { \ 41 dev_err(enic_get_dev(enic), \ 42 "Error getting %s, %d\n", #m, err); \ 43 return err; \ 44 } \ 45 } while (0) 46 47 GET_CONFIG(flags); 48 GET_CONFIG(wq_desc_count); 49 GET_CONFIG(rq_desc_count); 50 GET_CONFIG(mtu); 51 GET_CONFIG(intr_timer_type); 52 GET_CONFIG(intr_mode); 53 GET_CONFIG(intr_timer_usec); 54 GET_CONFIG(loop_tag); 55 GET_CONFIG(num_arfs); 56 GET_CONFIG(max_pkt_size); 57 58 /* max packet size is only defined in newer VIC firmware 59 * and will be 0 for legacy firmware and VICs 60 */ 61 if (c->max_pkt_size > ENIC_DEFAULT_RX_MAX_PKT_SIZE) 62 enic->max_mtu = c->max_pkt_size - (ETHER_HDR_LEN + 4); 63 else 64 enic->max_mtu = ENIC_DEFAULT_RX_MAX_PKT_SIZE 65 - (ETHER_HDR_LEN + 4); 66 if (c->mtu == 0) 67 c->mtu = 1500; 68 69 enic->adv_filters = vnic_dev_capable_adv_filters(enic->vdev); 70 71 err = vnic_dev_capable_filter_mode(enic->vdev, &enic->flow_filter_mode, 72 &enic->filter_actions); 73 if (err) { 74 dev_err(enic_get_dev(enic), 75 "Error getting filter modes, %d\n", err); 76 return err; 77 } 78 vnic_dev_capable_udp_rss_weak(enic->vdev, &enic->nic_cfg_chk, 79 &enic->udp_rss_weak); 80 81 c->wq_desc_count = 82 min_t(u32, ENIC_MAX_WQ_DESCS, 83 max_t(u32, ENIC_MIN_WQ_DESCS, 84 c->wq_desc_count)); 85 c->wq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */ 86 87 c->rq_desc_count = 88 min_t(u32, ENIC_MAX_RQ_DESCS, 89 max_t(u32, ENIC_MIN_RQ_DESCS, 90 c->rq_desc_count)); 91 c->rq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */ 92 93 c->intr_timer_usec = min_t(u32, c->intr_timer_usec, 94 vnic_dev_get_intr_coal_timer_max(enic->vdev)); 95 96 dev_info(enic_get_dev(enic), 97 "vNIC MAC addr %02x:%02x:%02x:%02x:%02x:%02x " 98 "wq/rq %d/%d mtu d, max mtu:%d\n", 99 enic->mac_addr[0], enic->mac_addr[1], enic->mac_addr[2], 100 enic->mac_addr[3], enic->mac_addr[4], enic->mac_addr[5], 101 c->wq_desc_count, c->rq_desc_count, 102 /* enic->rte_dev->data->mtu, */ enic->max_mtu); 103 dev_info(enic_get_dev(enic), "vNIC csum tx/rx %s/%s " 104 "rss %s intr mode %s type %s timer %d usec " 105 "loopback tag 0x%04x\n", 106 ENIC_SETTING(enic, TXCSUM) ? "yes" : "no", 107 ENIC_SETTING(enic, RXCSUM) ? "yes" : "no", 108 ENIC_SETTING(enic, RSS) ? 109 (ENIC_SETTING(enic, RSSHASH_UDPIPV4) ? "+UDP" : 110 ((enic->udp_rss_weak ? "+udp" : 111 "yes"))) : "no", 112 c->intr_mode == VENET_INTR_MODE_INTX ? "INTx" : 113 c->intr_mode == VENET_INTR_MODE_MSI ? "MSI" : 114 c->intr_mode == VENET_INTR_MODE_ANY ? "any" : 115 "unknown", 116 c->intr_timer_type == VENET_INTR_TYPE_MIN ? "min" : 117 c->intr_timer_type == VENET_INTR_TYPE_IDLE ? "idle" : 118 "unknown", 119 c->intr_timer_usec, 120 c->loop_tag); 121 122 /* RSS settings from vNIC */ 123 enic->reta_size = ENIC_RSS_RETA_SIZE; 124 enic->hash_key_size = ENIC_RSS_HASH_KEY_SIZE; 125 enic->flow_type_rss_offloads = 0; 126 127 /* Zero offloads if RSS is not enabled */ 128 if (!ENIC_SETTING(enic, RSS)) 129 enic->flow_type_rss_offloads = 0; 130 131 enic->vxlan = ENIC_SETTING(enic, VXLAN) && 132 vnic_dev_capable_vxlan(enic->vdev); 133 /* 134 * Default hardware capabilities. enic_dev_init() may add additional 135 * flags if it enables overlay offloads. 136 */ 137 enic->tx_queue_offload_capa = 0; 138 return 0; 139} 140 141int enic_add_vlan(struct enic *enic, u16 vlanid) 142{ 143 u64 a0 = vlanid, a1 = 0; 144 int wait = 1000; 145 int err; 146 147 err = vnic_dev_cmd(enic->vdev, CMD_VLAN_ADD, &a0, &a1, wait); 148 if (err) 149 dev_err(enic_get_dev(enic), "Can't add vlan id, %d\n", err); 150 151 return err; 152} 153 154int enic_del_vlan(struct enic *enic, u16 vlanid) 155{ 156 u64 a0 = vlanid, a1 = 0; 157 int wait = 1000; 158 int err; 159 160 err = vnic_dev_cmd(enic->vdev, CMD_VLAN_DEL, &a0, &a1, wait); 161 if (err) 162 dev_err(enic_get_dev(enic), "Can't delete vlan id, %d\n", err); 163 164 return err; 165} 166 167int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type, 168 u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en, 169 u8 ig_vlan_strip_en) 170{ 171 enum vnic_devcmd_cmd cmd; 172 u64 a0, a1; 173 u32 nic_cfg; 174 int wait = 1000; 175 176 vnic_set_nic_cfg(&nic_cfg, rss_default_cpu, 177 rss_hash_type, rss_hash_bits, rss_base_cpu, 178 rss_enable, tso_ipid_split_en, ig_vlan_strip_en); 179 180 a0 = nic_cfg; 181 a1 = 0; 182 cmd = enic->nic_cfg_chk ? CMD_NIC_CFG_CHK : CMD_NIC_CFG; 183 return vnic_dev_cmd(enic->vdev, cmd, &a0, &a1, wait); 184} 185 186void enic_get_res_counts(struct enic *enic) 187{ 188 enic->conf_wq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_WQ); 189 enic->conf_rq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_RQ); 190 enic->conf_cq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_CQ); 191 enic->conf_intr_count = vnic_dev_get_res_count(enic->vdev, 192 RES_TYPE_INTR_CTRL); 193 194 dev_info(enic_get_dev(enic), 195 "vNIC resources avail: wq %d rq %d cq %d intr %d\n", 196 enic->conf_wq_count, enic->conf_rq_count, 197 enic->conf_cq_count, enic->conf_intr_count); 198 enic->conf_rq_count = min(enic->conf_rq_count, enic->conf_wq_count); 199 enic->conf_wq_count = enic->conf_rq_count; 200 enic->conf_cq_count = enic->conf_rq_count + enic->conf_wq_count; 201 dev_info(enic_get_dev(enic), 202 "vNIC resources iflib: wq %d rq %d cq %d intr %d\n", 203 enic->conf_wq_count, enic->conf_rq_count, 204 enic->conf_cq_count, enic->conf_intr_count); 205 dev_info(enic_get_dev(enic), 206 "vNIC resources avail: wq_desc %d rq_desc %d\n", 207 enic->config.wq_desc_count, enic->config.rq_desc_count); 208 209 enic->wq_count = enic->conf_wq_count; 210 enic->rq_count = enic->conf_rq_count; 211 enic->cq_count = enic->conf_cq_count; 212} 213