net/ionic: add doorbells

[dpdk.git] / drivers / net / ionic / ionic_lif.c

diff --git a/drivers/net/ionic/ionic_lif.c b/drivers/net/ionic/ionic_lif.c
index 2559b4c..9cdab32 100644 (file)
--- a/drivers/net/ionic/ionic_lif.c
+++ b/drivers/net/ionic/ionic_lif.c
@@ -10,15 +10,38 @@
 #include "ionic_lif.h"
 #include "ionic_ethdev.h"
 
+static void *
+ionic_bus_map_dbpage(struct ionic_adapter *adapter, int page_num)
+{
+       char *vaddr = adapter->bars[IONIC_PCI_BAR_DBELL].vaddr;
+
+       if (adapter->num_bars <= IONIC_PCI_BAR_DBELL)
+               return NULL;
+
+       return (void *)&vaddr[page_num << PAGE_SHIFT];
+}
+
 int
 ionic_lif_alloc(struct ionic_lif *lif)
 {
+       struct ionic_adapter *adapter = lif->adapter;
        uint32_t socket_id = rte_socket_id();
+       int dbpage_num;
 
        snprintf(lif->name, sizeof(lif->name), "lif%u", lif->index);
 
        IONIC_PRINT(DEBUG, "Allocating Lif Info");
 
+       lif->kern_pid = 0;
+
+       dbpage_num = ionic_db_page_num(lif, 0);
+
+       lif->kern_dbpage = ionic_bus_map_dbpage(adapter, dbpage_num);
+       if (!lif->kern_dbpage) {
+               IONIC_PRINT(ERR, "Cannot map dbpage, aborting");
+               return -ENOMEM;
+       }
+
        lif->info_sz = RTE_ALIGN(sizeof(*lif->info), PAGE_SIZE);
 
        lif->info_z = rte_eth_dma_zone_reserve(lif->eth_dev,