drivers/event/cnxk/cn9k_eventdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2021 Marvell.
   3  */
   4
   5 #include "cnxk_eventdev.h"
   6
   7 #define CN9K_DUAL_WS_NB_WS          2
   8 #define CN9K_DUAL_WS_PAIR_ID(x, id) (((x)*CN9K_DUAL_WS_NB_WS) + id)
   9
  10 static void
  11 cn9k_sso_set_rsrc(void *arg)
  12 {
  13         struct cnxk_sso_evdev *dev = arg;
  14
  15         if (dev->dual_ws)
  16                 dev->max_event_ports = dev->sso.max_hws / CN9K_DUAL_WS_NB_WS;
  17         else
  18                 dev->max_event_ports = dev->sso.max_hws;
  19         dev->max_event_queues =
  20                 dev->sso.max_hwgrp > RTE_EVENT_MAX_QUEUES_PER_DEV ?
  21                               RTE_EVENT_MAX_QUEUES_PER_DEV :
  22                               dev->sso.max_hwgrp;
  23 }
  24
  25 static int
  26 cn9k_sso_rsrc_init(void *arg, uint8_t hws, uint8_t hwgrp)
  27 {
  28         struct cnxk_sso_evdev *dev = arg;
  29
  30         if (dev->dual_ws)
  31                 hws = hws * CN9K_DUAL_WS_NB_WS;
  32
  33         return roc_sso_rsrc_init(&dev->sso, hws, hwgrp);
  34 }
  35
  36 static void
  37 cn9k_sso_info_get(struct rte_eventdev *event_dev,
  38                   struct rte_event_dev_info *dev_info)
  39 {
  40         struct cnxk_sso_evdev *dev = cnxk_sso_pmd_priv(event_dev);
  41
  42         dev_info->driver_name = RTE_STR(EVENTDEV_NAME_CN9K_PMD);
  43         cnxk_sso_info_get(dev, dev_info);
  44 }
  45
  46 static int
  47 cn9k_sso_dev_configure(const struct rte_eventdev *event_dev)
  48 {
  49         struct cnxk_sso_evdev *dev = cnxk_sso_pmd_priv(event_dev);
  50         int rc;
  51
  52         rc = cnxk_sso_dev_validate(event_dev);
  53         if (rc < 0) {
  54                 plt_err("Invalid event device configuration");
  55                 return -EINVAL;
  56         }
  57
  58         roc_sso_rsrc_fini(&dev->sso);
  59
  60         rc = cn9k_sso_rsrc_init(dev, dev->nb_event_ports, dev->nb_event_queues);
  61         if (rc < 0) {
  62                 plt_err("Failed to initialize SSO resources");
  63                 return -ENODEV;
  64         }
  65
  66         return rc;
  67 }
  68
  69 static struct rte_eventdev_ops cn9k_sso_dev_ops = {
  70         .dev_infos_get = cn9k_sso_info_get,
  71         .dev_configure = cn9k_sso_dev_configure,
  72         .queue_def_conf = cnxk_sso_queue_def_conf,
  73         .port_def_conf = cnxk_sso_port_def_conf,
  74 };
  75
  76 static int
  77 cn9k_sso_init(struct rte_eventdev *event_dev)
  78 {
  79         struct cnxk_sso_evdev *dev = cnxk_sso_pmd_priv(event_dev);
  80         int rc;
  81
  82         if (RTE_CACHE_LINE_SIZE != 128) {
  83                 plt_err("Driver not compiled for CN9K");
  84                 return -EFAULT;
  85         }
  86
  87         rc = roc_plt_init();
  88         if (rc < 0) {
  89                 plt_err("Failed to initialize platform model");
  90                 return rc;
  91         }
  92
  93         event_dev->dev_ops = &cn9k_sso_dev_ops;
  94         /* For secondary processes, the primary has done all the work */
  95         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
  96                 return 0;
  97
  98         rc = cnxk_sso_init(event_dev);
  99         if (rc < 0)
 100                 return rc;
 101
 102         cn9k_sso_set_rsrc(cnxk_sso_pmd_priv(event_dev));
 103         if (!dev->max_event_ports || !dev->max_event_queues) {
 104                 plt_err("Not enough eventdev resource queues=%d ports=%d",
 105                         dev->max_event_queues, dev->max_event_ports);
 106                 cnxk_sso_fini(event_dev);
 107                 return -ENODEV;
 108         }
 109
 110         plt_sso_dbg("Initializing %s max_queues=%d max_ports=%d",
 111                     event_dev->data->name, dev->max_event_queues,
 112                     dev->max_event_ports);
 113
 114         return 0;
 115 }
 116
 117 static int
 118 cn9k_sso_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 119 {
 120         return rte_event_pmd_pci_probe(
 121                 pci_drv, pci_dev, sizeof(struct cnxk_sso_evdev), cn9k_sso_init);
 122 }
 123
 124 static const struct rte_pci_id cn9k_pci_sso_map[] = {
 125         {
 126                 .vendor_id = 0,
 127         },
 128 };
 129
 130 static struct rte_pci_driver cn9k_pci_sso = {
 131         .id_table = cn9k_pci_sso_map,
 132         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_NEED_IOVA_AS_VA,
 133         .probe = cn9k_sso_probe,
 134         .remove = cnxk_sso_remove,
 135 };
 136
 137 RTE_PMD_REGISTER_PCI(event_cn9k, cn9k_pci_sso);
 138 RTE_PMD_REGISTER_PCI_TABLE(event_cn9k, cn9k_pci_sso_map);
 139 RTE_PMD_REGISTER_KMOD_DEP(event_cn9k, "vfio-pci");