drivers/net/enic/enic_res.c

   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_compat.h"
   7 #include "rte_ethdev_driver.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
  24 int enic_get_vnic_config(struct enic *enic)
  25 {
  26         struct vnic_enet_config *c = &enic->config;
  27         int err;
  28
  29         err = vnic_dev_get_mac_addr(enic->vdev, enic->mac_addr);
  30         if (err) {
  31                 dev_err(enic_get_dev(enic),
  32                         "Error getting MAC addr, %d\n", err);
  33                 return err;
  34         }
  35
  36
  37 #define GET_CONFIG(m) \
  38         do { \
  39                 err = vnic_dev_spec(enic->vdev, \
  40                         offsetof(struct vnic_enet_config, m), \
  41                         sizeof(c->m), &c->m); \
  42                 if (err) { \
  43                         dev_err(enic_get_dev(enic), \
  44                                 "Error getting %s, %d\n", #m, err); \
  45                         return err; \
  46                 } \
  47         } while (0)
  48
  49         GET_CONFIG(flags);
  50         GET_CONFIG(wq_desc_count);
  51         GET_CONFIG(rq_desc_count);
  52         GET_CONFIG(mtu);
  53         GET_CONFIG(intr_timer_type);
  54         GET_CONFIG(intr_mode);
  55         GET_CONFIG(intr_timer_usec);
  56         GET_CONFIG(loop_tag);
  57         GET_CONFIG(num_arfs);
  58         GET_CONFIG(max_pkt_size);
  59
  60         /* max packet size is only defined in newer VIC firmware
  61          * and will be 0 for legacy firmware and VICs
  62          */
  63         if (c->max_pkt_size > ENIC_DEFAULT_RX_MAX_PKT_SIZE)
  64                 enic->max_mtu = c->max_pkt_size - (ETHER_HDR_LEN + 4);
  65         else
  66                 enic->max_mtu = ENIC_DEFAULT_RX_MAX_PKT_SIZE
  67                                 - (ETHER_HDR_LEN + 4);
  68         if (c->mtu == 0)
  69                 c->mtu = 1500;
  70
  71         enic->rte_dev->data->mtu = min_t(u16, enic->max_mtu,
  72                                          max_t(u16, ENIC_MIN_MTU, c->mtu));
  73
  74         enic->adv_filters = vnic_dev_capable_adv_filters(enic->vdev);
  75         dev_info(enic, "Advanced Filters %savailable\n", ((enic->adv_filters)
  76                  ? "" : "not "));
  77
  78         err = vnic_dev_capable_filter_mode(enic->vdev, &enic->flow_filter_mode,
  79                                            &enic->filter_tags);
  80         if (err) {
  81                 dev_err(enic_get_dev(enic),
  82                         "Error getting filter modes, %d\n", err);
  83                 return err;
  84         }
  85
  86         dev_info(enic, "Flow api filter mode: %s, Filter tagging %savailable\n",
  87                 ((enic->flow_filter_mode == FILTER_DPDK_1) ? "DPDK" :
  88                 ((enic->flow_filter_mode == FILTER_USNIC_IP) ? "USNIC" :
  89                 ((enic->flow_filter_mode == FILTER_IPV4_5TUPLE) ? "5TUPLE" :
  90                 "NONE"))),
  91                 ((enic->filter_tags) ? "" : "not "));
  92
  93         c->wq_desc_count =
  94                 min_t(u32, ENIC_MAX_WQ_DESCS,
  95                 max_t(u32, ENIC_MIN_WQ_DESCS,
  96                 c->wq_desc_count));
  97         c->wq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
  98
  99         c->rq_desc_count =
 100                 min_t(u32, ENIC_MAX_RQ_DESCS,
 101                 max_t(u32, ENIC_MIN_RQ_DESCS,
 102                 c->rq_desc_count));
 103         c->rq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
 104
 105         c->intr_timer_usec = min_t(u32, c->intr_timer_usec,
 106                 vnic_dev_get_intr_coal_timer_max(enic->vdev));
 107
 108         dev_info(enic_get_dev(enic),
 109                 "vNIC MAC addr %02x:%02x:%02x:%02x:%02x:%02x "
 110                 "wq/rq %d/%d mtu %d, max mtu:%d\n",
 111                 enic->mac_addr[0], enic->mac_addr[1], enic->mac_addr[2],
 112                 enic->mac_addr[3], enic->mac_addr[4], enic->mac_addr[5],
 113                 c->wq_desc_count, c->rq_desc_count,
 114                 enic->rte_dev->data->mtu, enic->max_mtu);
 115         dev_info(enic_get_dev(enic), "vNIC csum tx/rx %s/%s "
 116                 "rss %s intr mode %s type %s timer %d usec "
 117                 "loopback tag 0x%04x\n",
 118                 ENIC_SETTING(enic, TXCSUM) ? "yes" : "no",
 119                 ENIC_SETTING(enic, RXCSUM) ? "yes" : "no",
 120                 ENIC_SETTING(enic, RSS) ? "yes" : "no",
 121                 c->intr_mode == VENET_INTR_MODE_INTX ? "INTx" :
 122                 c->intr_mode == VENET_INTR_MODE_MSI ? "MSI" :
 123                 c->intr_mode == VENET_INTR_MODE_ANY ? "any" :
 124                 "unknown",
 125                 c->intr_timer_type == VENET_INTR_TYPE_MIN ? "min" :
 126                 c->intr_timer_type == VENET_INTR_TYPE_IDLE ? "idle" :
 127                 "unknown",
 128                 c->intr_timer_usec,
 129                 c->loop_tag);
 130
 131         /* RSS settings from vNIC */
 132         enic->reta_size = ENIC_RSS_RETA_SIZE;
 133         enic->hash_key_size = ENIC_RSS_HASH_KEY_SIZE;
 134         enic->flow_type_rss_offloads = 0;
 135         if (ENIC_SETTING(enic, RSSHASH_IPV4))
 136                 enic->flow_type_rss_offloads |= ETH_RSS_IPV4;
 137         if (ENIC_SETTING(enic, RSSHASH_TCPIPV4))
 138                 enic->flow_type_rss_offloads |= ETH_RSS_NONFRAG_IPV4_TCP;
 139         if (ENIC_SETTING(enic, RSSHASH_IPV6))
 140                 enic->flow_type_rss_offloads |= ETH_RSS_IPV6;
 141         if (ENIC_SETTING(enic, RSSHASH_TCPIPV6))
 142                 enic->flow_type_rss_offloads |= ETH_RSS_NONFRAG_IPV6_TCP;
 143         if (ENIC_SETTING(enic, RSSHASH_IPV6_EX))
 144                 enic->flow_type_rss_offloads |= ETH_RSS_IPV6_EX;
 145         if (ENIC_SETTING(enic, RSSHASH_TCPIPV6_EX))
 146                 enic->flow_type_rss_offloads |= ETH_RSS_IPV6_TCP_EX;
 147         /* Zero offloads if RSS is not enabled */
 148         if (!ENIC_SETTING(enic, RSS))
 149                 enic->flow_type_rss_offloads = 0;
 150
 151         return 0;
 152 }
 153
 154 int enic_add_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_ADD, &a0, &a1, wait);
 161         if (err)
 162                 dev_err(enic_get_dev(enic), "Can't add vlan id, %d\n", err);
 163
 164         return err;
 165 }
 166
 167 int enic_del_vlan(struct enic *enic, u16 vlanid)
 168 {
 169         u64 a0 = vlanid, a1 = 0;
 170         int wait = 1000;
 171         int err;
 172
 173         err = vnic_dev_cmd(enic->vdev, CMD_VLAN_DEL, &a0, &a1, wait);
 174         if (err)
 175                 dev_err(enic_get_dev(enic), "Can't delete vlan id, %d\n", err);
 176
 177         return err;
 178 }
 179
 180 int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
 181         u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
 182         u8 ig_vlan_strip_en)
 183 {
 184         u64 a0, a1;
 185         u32 nic_cfg;
 186         int wait = 1000;
 187
 188         vnic_set_nic_cfg(&nic_cfg, rss_default_cpu,
 189                 rss_hash_type, rss_hash_bits, rss_base_cpu,
 190                 rss_enable, tso_ipid_split_en, ig_vlan_strip_en);
 191
 192         a0 = nic_cfg;
 193         a1 = 0;
 194
 195         return vnic_dev_cmd(enic->vdev, CMD_NIC_CFG, &a0, &a1, wait);
 196 }
 197
 198 int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len)
 199 {
 200         u64 a0 = (u64)key_pa, a1 = len;
 201         int wait = 1000;
 202
 203         return vnic_dev_cmd(enic->vdev, CMD_RSS_KEY, &a0, &a1, wait);
 204 }
 205
 206 int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len)
 207 {
 208         u64 a0 = (u64)cpu_pa, a1 = len;
 209         int wait = 1000;
 210
 211         return vnic_dev_cmd(enic->vdev, CMD_RSS_CPU, &a0, &a1, wait);
 212 }
 213
 214 void enic_free_vnic_resources(struct enic *enic)
 215 {
 216         unsigned int i;
 217
 218         for (i = 0; i < enic->wq_count; i++)
 219                 vnic_wq_free(&enic->wq[i]);
 220         for (i = 0; i < enic_vnic_rq_count(enic); i++)
 221                 if (enic->rq[i].in_use)
 222                         vnic_rq_free(&enic->rq[i]);
 223         for (i = 0; i < enic->cq_count; i++)
 224                 vnic_cq_free(&enic->cq[i]);
 225         for (i = 0; i < enic->intr_count; i++)
 226                 vnic_intr_free(&enic->intr[i]);
 227 }
 228
 229 void enic_get_res_counts(struct enic *enic)
 230 {
 231         enic->conf_wq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_WQ);
 232         enic->conf_rq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_RQ);
 233         enic->conf_cq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_CQ);
 234         enic->conf_intr_count = vnic_dev_get_res_count(enic->vdev,
 235                 RES_TYPE_INTR_CTRL);
 236
 237         dev_info(enic_get_dev(enic),
 238                 "vNIC resources avail: wq %d rq %d cq %d intr %d\n",
 239                 enic->conf_wq_count, enic->conf_rq_count,
 240                 enic->conf_cq_count, enic->conf_intr_count);
 241 }