New upstream version 17.11.1
[deb_dpdk.git] / drivers / net / enic / enic_main.c
index 40dbec7..1694aed 100644 (file)
@@ -40,6 +40,7 @@
 #include <libgen.h>
 
 #include <rte_pci.h>
+#include <rte_bus_pci.h>
 #include <rte_memzone.h>
 #include <rte_malloc.h>
 #include <rte_mbuf.h>
@@ -156,16 +157,17 @@ void enic_dev_stats_clear(struct enic *enic)
        enic_clear_soft_stats(enic);
 }
 
-void enic_dev_stats_get(struct enic *enic, struct rte_eth_stats *r_stats)
+int enic_dev_stats_get(struct enic *enic, struct rte_eth_stats *r_stats)
 {
        struct vnic_stats *stats;
        struct enic_soft_stats *soft_stats = &enic->soft_stats;
        int64_t rx_truncated;
        uint64_t rx_packet_errors;
+       int ret = vnic_dev_stats_dump(enic->vdev, &stats);
 
-       if (vnic_dev_stats_dump(enic->vdev, &stats)) {
+       if (ret) {
                dev_err(enic, "Error in getting stats\n");
-               return;
+               return ret;
        }
 
        /* The number of truncated packets can only be calculated by
@@ -191,6 +193,7 @@ void enic_dev_stats_get(struct enic *enic, struct rte_eth_stats *r_stats)
        r_stats->imissed = stats->rx.rx_no_bufs + rx_truncated;
 
        r_stats->rx_nombuf = rte_atomic64_read(&soft_stats->rx_nombuf);
+       return 0;
 }
 
 void enic_del_mac_address(struct enic *enic, int mac_index)
@@ -224,7 +227,7 @@ enic_free_rq_buf(struct rte_mbuf **mbuf)
                return;
 
        rte_pktmbuf_free(*mbuf);
-       mbuf = NULL;
+       *mbuf = NULL;
 }
 
 void enic_init_vnic_resources(struct enic *enic)
@@ -280,7 +283,7 @@ void enic_init_vnic_resources(struct enic *enic)
                        0 /* cq_entry_enable */,
                        1 /* cq_message_enable */,
                        0 /* interrupt offset */,
-                       (u64)enic->wq[index].cqmsg_rz->phys_addr);
+                       (u64)enic->wq[index].cqmsg_rz->iova);
        }
 
        vnic_intr_init(&enic->intr,
@@ -313,7 +316,7 @@ enic_alloc_rx_queue_mbufs(struct enic *enic, struct vnic_rq *rq)
                }
 
                mb->data_off = RTE_PKTMBUF_HEADROOM;
-               dma_addr = (dma_addr_t)(mb->buf_physaddr
+               dma_addr = (dma_addr_t)(mb->buf_iova
                           + RTE_PKTMBUF_HEADROOM);
                rq_enet_desc_enc(rqd, dma_addr,
                                (rq->is_sop ? RQ_ENET_TYPE_ONLY_SOP
@@ -359,7 +362,7 @@ enic_alloc_consistent(void *priv, size_t size,
        }
 
        vaddr = rz->addr;
-       *dma_handle = (dma_addr_t)rz->phys_addr;
+       *dma_handle = (dma_addr_t)rz->iova;
 
        mze = rte_malloc("enic memzone entry",
                         sizeof(struct enic_memzone_entry), 0);
@@ -368,6 +371,7 @@ enic_alloc_consistent(void *priv, size_t size,
                pr_err("%s : Failed to allocate memory for memzone list\n",
                       __func__);
                rte_memzone_free(rz);
+               return NULL;
        }
 
        mze->rz = rz;
@@ -391,7 +395,7 @@ enic_free_consistent(void *priv,
        rte_spinlock_lock(&enic->memzone_list_lock);
        LIST_FOREACH(mze, &enic->memzone_list, entries) {
                if (mze->rz->addr == vaddr &&
-                   mze->rz->phys_addr == dma_handle)
+                   mze->rz->iova == dma_handle)
                        break;
        }
        if (mze == NULL) {
@@ -1071,6 +1075,9 @@ static void enic_dev_deinit(struct enic *enic)
        vnic_dev_notify_unset(enic->vdev);
 
        rte_free(eth_dev->data->mac_addrs);
+       rte_free(enic->cq);
+       rte_free(enic->rq);
+       rte_free(enic->wq);
 }
 
 
@@ -1078,27 +1085,28 @@ int enic_set_vnic_res(struct enic *enic)
 {
        struct rte_eth_dev *eth_dev = enic->rte_dev;
        int rc = 0;
+       unsigned int required_rq, required_wq, required_cq;
 
-       /* With Rx scatter support, two RQs are now used per RQ used by
-        * the application.
-        */
-       if (enic->conf_rq_count < eth_dev->data->nb_rx_queues) {
+       /* Always use two vNIC RQs per eth_dev RQ, regardless of Rx scatter. */
+       required_rq = eth_dev->data->nb_rx_queues * 2;
+       required_wq = eth_dev->data->nb_tx_queues;
+       required_cq = eth_dev->data->nb_rx_queues + eth_dev->data->nb_tx_queues;
+
+       if (enic->conf_rq_count < required_rq) {
                dev_err(dev, "Not enough Receive queues. Requested:%u which uses %d RQs on VIC, Configured:%u\n",
                        eth_dev->data->nb_rx_queues,
-                       eth_dev->data->nb_rx_queues * 2, enic->conf_rq_count);
+                       required_rq, enic->conf_rq_count);
                rc = -EINVAL;
        }
-       if (enic->conf_wq_count < eth_dev->data->nb_tx_queues) {
+       if (enic->conf_wq_count < required_wq) {
                dev_err(dev, "Not enough Transmit queues. Requested:%u, Configured:%u\n",
                        eth_dev->data->nb_tx_queues, enic->conf_wq_count);
                rc = -EINVAL;
        }
 
-       if (enic->conf_cq_count < (eth_dev->data->nb_rx_queues +
-                                  eth_dev->data->nb_tx_queues)) {
+       if (enic->conf_cq_count < required_cq) {
                dev_err(dev, "Not enough Completion queues. Required:%u, Configured:%u\n",
-                       (eth_dev->data->nb_rx_queues +
-                        eth_dev->data->nb_tx_queues), enic->conf_cq_count);
+                       required_cq, enic->conf_cq_count);
                rc = -EINVAL;
        }
 
@@ -1116,11 +1124,12 @@ static int
 enic_reinit_rq(struct enic *enic, unsigned int rq_idx)
 {
        struct vnic_rq *sop_rq, *data_rq;
-       unsigned int cq_idx = enic_cq_rq(enic, rq_idx);
+       unsigned int cq_idx;
        int rc = 0;
 
        sop_rq = &enic->rq[enic_rte_rq_idx_to_sop_idx(rq_idx)];
        data_rq = &enic->rq[enic_rte_rq_idx_to_data_idx(rq_idx)];
+       cq_idx = rq_idx;
 
        vnic_cq_clean(&enic->cq[cq_idx]);
        vnic_cq_init(&enic->cq[cq_idx],
@@ -1180,6 +1189,9 @@ int enic_set_mtu(struct enic *enic, uint16_t new_mtu)
        old_mtu = eth_dev->data->mtu;
        config_mtu = enic->config.mtu;
 
+       if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+               return -E_RTE_SECONDARY;
+
        if (new_mtu > enic->max_mtu) {
                dev_err(enic,
                        "MTU not updated: requested (%u) greater than max (%u)\n",
@@ -1299,6 +1311,25 @@ static int enic_dev_init(struct enic *enic)
                dev_err(enic, "See the ENIC PMD guide for more information.\n");
                return -EINVAL;
        }
+       /* Queue counts may be zeros. rte_zmalloc returns NULL in that case. */
+       enic->cq = rte_zmalloc("enic_vnic_cq", sizeof(struct vnic_cq) *
+                              enic->conf_cq_count, 8);
+       enic->rq = rte_zmalloc("enic_vnic_rq", sizeof(struct vnic_rq) *
+                              enic->conf_rq_count, 8);
+       enic->wq = rte_zmalloc("enic_vnic_wq", sizeof(struct vnic_wq) *
+                              enic->conf_wq_count, 8);
+       if (enic->conf_cq_count > 0 && enic->cq == NULL) {
+               dev_err(enic, "failed to allocate vnic_cq, aborting.\n");
+               return -1;
+       }
+       if (enic->conf_rq_count > 0 && enic->rq == NULL) {
+               dev_err(enic, "failed to allocate vnic_rq, aborting.\n");
+               return -1;
+       }
+       if (enic->conf_wq_count > 0 && enic->wq == NULL) {
+               dev_err(enic, "failed to allocate vnic_wq, aborting.\n");
+               return -1;
+       }
 
        /* Get the supported filters */
        enic_fdir_info(enic);
@@ -1331,6 +1362,10 @@ int enic_probe(struct enic *enic)
 
        dev_debug(enic, " Initializing ENIC PMD\n");
 
+       /* if this is a secondary process the hardware is already initialized */
+       if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+               return 0;
+
        enic->bar0.vaddr = (void *)pdev->mem_resource[0].addr;
        enic->bar0.len = pdev->mem_resource[0].len;