ceph/src/seastar/dpdk/drivers/net/enic/enic_res.c

   1 /*
   2  * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
   3  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
   4  *
   5  * Copyright (c) 2014, Cisco Systems, Inc.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  * notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  * notice, this list of conditions and the following disclaimer in
  17  * the documentation and/or other materials provided with the
  18  * distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  24  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  28  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  30  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31  * POSSIBILITY OF SUCH DAMAGE.
  32  *
  33  */
  34
  35 #include "enic_compat.h"
  36 #include "rte_ethdev.h"
  37 #include "wq_enet_desc.h"
  38 #include "rq_enet_desc.h"
  39 #include "cq_enet_desc.h"
  40 #include "vnic_resource.h"
  41 #include "vnic_enet.h"
  42 #include "vnic_dev.h"
  43 #include "vnic_wq.h"
  44 #include "vnic_rq.h"
  45 #include "vnic_cq.h"
  46 #include "vnic_intr.h"
  47 #include "vnic_stats.h"
  48 #include "vnic_nic.h"
  49 #include "vnic_rss.h"
  50 #include "enic_res.h"
  51 #include "enic.h"
  52
  53 int enic_get_vnic_config(struct enic *enic)
  54 {
  55         struct vnic_enet_config *c = &enic->config;
  56         int err;
  57
  58         err = vnic_dev_get_mac_addr(enic->vdev, enic->mac_addr);
  59         if (err) {
  60                 dev_err(enic_get_dev(enic),
  61                         "Error getting MAC addr, %d\n", err);
  62                 return err;
  63         }
  64
  65
  66 #define GET_CONFIG(m) \
  67         do { \
  68                 err = vnic_dev_spec(enic->vdev, \
  69                         offsetof(struct vnic_enet_config, m), \
  70                         sizeof(c->m), &c->m); \
  71                 if (err) { \
  72                         dev_err(enic_get_dev(enic), \
  73                                 "Error getting %s, %d\n", #m, err); \
  74                         return err; \
  75                 } \
  76         } while (0)
  77
  78         GET_CONFIG(flags);
  79         GET_CONFIG(wq_desc_count);
  80         GET_CONFIG(rq_desc_count);
  81         GET_CONFIG(mtu);
  82         GET_CONFIG(intr_timer_type);
  83         GET_CONFIG(intr_mode);
  84         GET_CONFIG(intr_timer_usec);
  85         GET_CONFIG(loop_tag);
  86         GET_CONFIG(num_arfs);
  87         GET_CONFIG(max_pkt_size);
  88
  89         /* max packet size is only defined in newer VIC firmware
  90          * and will be 0 for legacy firmware and VICs
  91          */
  92         if (c->max_pkt_size > ENIC_DEFAULT_RX_MAX_PKT_SIZE)
  93                 enic->max_mtu = c->max_pkt_size - (ETHER_HDR_LEN + 4);
  94         else
  95                 enic->max_mtu = ENIC_DEFAULT_RX_MAX_PKT_SIZE
  96                                 - (ETHER_HDR_LEN + 4);
  97         if (c->mtu == 0)
  98                 c->mtu = 1500;
  99
 100         enic->rte_dev->data->mtu = min_t(u16, enic->max_mtu,
 101                                          max_t(u16, ENIC_MIN_MTU, c->mtu));
 102
 103         enic->adv_filters = vnic_dev_capable_adv_filters(enic->vdev);
 104         dev_info(enic, "Advanced Filters %savailable\n", ((enic->adv_filters)
 105                  ? "" : "not "));
 106
 107         c->wq_desc_count =
 108                 min_t(u32, ENIC_MAX_WQ_DESCS,
 109                 max_t(u32, ENIC_MIN_WQ_DESCS,
 110                 c->wq_desc_count));
 111         c->wq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
 112
 113         c->rq_desc_count =
 114                 min_t(u32, ENIC_MAX_RQ_DESCS,
 115                 max_t(u32, ENIC_MIN_RQ_DESCS,
 116                 c->rq_desc_count));
 117         c->rq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
 118
 119         c->intr_timer_usec = min_t(u32, c->intr_timer_usec,
 120                 vnic_dev_get_intr_coal_timer_max(enic->vdev));
 121
 122         dev_info(enic_get_dev(enic),
 123                 "vNIC MAC addr %02x:%02x:%02x:%02x:%02x:%02x "
 124                 "wq/rq %d/%d mtu %d, max mtu:%d\n",
 125                 enic->mac_addr[0], enic->mac_addr[1], enic->mac_addr[2],
 126                 enic->mac_addr[3], enic->mac_addr[4], enic->mac_addr[5],
 127                 c->wq_desc_count, c->rq_desc_count,
 128                 enic->rte_dev->data->mtu, enic->max_mtu);
 129         dev_info(enic_get_dev(enic), "vNIC csum tx/rx %s/%s "
 130                 "rss %s intr mode %s type %s timer %d usec "
 131                 "loopback tag 0x%04x\n",
 132                 ENIC_SETTING(enic, TXCSUM) ? "yes" : "no",
 133                 ENIC_SETTING(enic, RXCSUM) ? "yes" : "no",
 134                 ENIC_SETTING(enic, RSS) ? "yes" : "no",
 135                 c->intr_mode == VENET_INTR_MODE_INTX ? "INTx" :
 136                 c->intr_mode == VENET_INTR_MODE_MSI ? "MSI" :
 137                 c->intr_mode == VENET_INTR_MODE_ANY ? "any" :
 138                 "unknown",
 139                 c->intr_timer_type == VENET_INTR_TYPE_MIN ? "min" :
 140                 c->intr_timer_type == VENET_INTR_TYPE_IDLE ? "idle" :
 141                 "unknown",
 142                 c->intr_timer_usec,
 143                 c->loop_tag);
 144
 145         return 0;
 146 }
 147
 148 int enic_add_vlan(struct enic *enic, u16 vlanid)
 149 {
 150         u64 a0 = vlanid, a1 = 0;
 151         int wait = 1000;
 152         int err;
 153
 154         err = vnic_dev_cmd(enic->vdev, CMD_VLAN_ADD, &a0, &a1, wait);
 155         if (err)
 156                 dev_err(enic_get_dev(enic), "Can't add vlan id, %d\n", err);
 157
 158         return err;
 159 }
 160
 161 int enic_del_vlan(struct enic *enic, u16 vlanid)
 162 {
 163         u64 a0 = vlanid, a1 = 0;
 164         int wait = 1000;
 165         int err;
 166
 167         err = vnic_dev_cmd(enic->vdev, CMD_VLAN_DEL, &a0, &a1, wait);
 168         if (err)
 169                 dev_err(enic_get_dev(enic), "Can't delete vlan id, %d\n", err);
 170
 171         return err;
 172 }
 173
 174 int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
 175         u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
 176         u8 ig_vlan_strip_en)
 177 {
 178         u64 a0, a1;
 179         u32 nic_cfg;
 180         int wait = 1000;
 181
 182         vnic_set_nic_cfg(&nic_cfg, rss_default_cpu,
 183                 rss_hash_type, rss_hash_bits, rss_base_cpu,
 184                 rss_enable, tso_ipid_split_en, ig_vlan_strip_en);
 185
 186         a0 = nic_cfg;
 187         a1 = 0;
 188
 189         return vnic_dev_cmd(enic->vdev, CMD_NIC_CFG, &a0, &a1, wait);
 190 }
 191
 192 int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len)
 193 {
 194         u64 a0 = (u64)key_pa, a1 = len;
 195         int wait = 1000;
 196
 197         return vnic_dev_cmd(enic->vdev, CMD_RSS_KEY, &a0, &a1, wait);
 198 }
 199
 200 int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len)
 201 {
 202         u64 a0 = (u64)cpu_pa, a1 = len;
 203         int wait = 1000;
 204
 205         return vnic_dev_cmd(enic->vdev, CMD_RSS_CPU, &a0, &a1, wait);
 206 }
 207
 208 void enic_free_vnic_resources(struct enic *enic)
 209 {
 210         unsigned int i;
 211
 212         for (i = 0; i < enic->wq_count; i++)
 213                 vnic_wq_free(&enic->wq[i]);
 214         for (i = 0; i < enic_vnic_rq_count(enic); i++)
 215                 if (enic->rq[i].in_use)
 216                         vnic_rq_free(&enic->rq[i]);
 217         for (i = 0; i < enic->cq_count; i++)
 218                 vnic_cq_free(&enic->cq[i]);
 219         vnic_intr_free(&enic->intr);
 220 }
 221
 222 void enic_get_res_counts(struct enic *enic)
 223 {
 224         enic->conf_wq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_WQ);
 225         enic->conf_rq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_RQ);
 226         enic->conf_cq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_CQ);
 227         enic->conf_intr_count = vnic_dev_get_res_count(enic->vdev,
 228                 RES_TYPE_INTR_CTRL);
 229
 230         dev_info(enic_get_dev(enic),
 231                 "vNIC resources avail: wq %d rq %d cq %d intr %d\n",
 232                 enic->conf_wq_count, enic->conf_rq_count,
 233                 enic->conf_cq_count, enic->conf_intr_count);
 234 }