net/bnxt: allocate RSS context only if RSS mode is enabled

[dpdk.git] / drivers / net / bnxt / bnxt_ethdev.c

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 0e24bcb..e93a376 100644 (file)
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -26,6 +26,7 @@
 #include "bnxt_vnic.h"
 #include "hsi_struct_def_dpdk.h"
 #include "bnxt_nvm_defs.h"
+#include "bnxt_util.h"
 
 #define DRV_MODULE_NAME                "bnxt"
 static const char bnxt_version[] =
@@ -199,13 +200,14 @@ alloc_mem_err:
 
 static int bnxt_init_chip(struct bnxt *bp)
 {
-       unsigned int i;
+       struct bnxt_rx_queue *rxq;
        struct rte_eth_link new;
        struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(bp->eth_dev);
        struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
        uint32_t intr_vector = 0;
        uint32_t queue_id, base = BNXT_MISC_VEC_ID;
        uint32_t vec = BNXT_MISC_VEC_ID;
+       unsigned int i, j;
        int rc;
 
        /* disable uio/vfio intr/eventfd mapping */
@@ -247,6 +249,7 @@ static int bnxt_init_chip(struct bnxt *bp)
 
        /* VNIC configuration */
        for (i = 0; i < bp->nr_vnics; i++) {
+               struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
                struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
 
                rc = bnxt_hwrm_vnic_alloc(bp, vnic);
@@ -256,12 +259,15 @@ static int bnxt_init_chip(struct bnxt *bp)
                        goto err_out;
                }
 
-               rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic);
-               if (rc) {
-                       PMD_DRV_LOG(ERR,
-                               "HWRM vnic %d ctx alloc failure rc: %x\n",
-                               i, rc);
-                       goto err_out;
+               /* Alloc RSS context only if RSS mode is enabled */
+               if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS) {
+                       rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic);
+                       if (rc) {
+                               PMD_DRV_LOG(ERR,
+                                       "HWRM vnic %d ctx alloc failure rc: %x\n",
+                                       i, rc);
+                               goto err_out;
+                       }
                }
 
                rc = bnxt_hwrm_vnic_cfg(bp, vnic);
@@ -279,6 +285,13 @@ static int bnxt_init_chip(struct bnxt *bp)
                        goto err_out;
                }
 
+               for (j = 0; j < bp->rx_nr_rings; j++) {
+                       rxq = bp->eth_dev->data->rx_queues[j];
+
+                       if (rxq->rx_deferred_start)
+                               rxq->vnic->fw_grp_ids[j] = INVALID_HW_RING_ID;
+               }
+
                rc = bnxt_vnic_rss_configure(bp, vnic);
                if (rc) {
                        PMD_DRV_LOG(ERR,
@@ -1573,6 +1586,7 @@ static int bnxt_mtu_set_op(struct rte_eth_dev *eth_dev, uint16_t new_mtu)
 
        for (i = 0; i < bp->nr_vnics; i++) {
                struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
+               uint16_t size = 0;
 
                vnic->mru = bp->eth_dev->data->mtu + ETHER_HDR_LEN +
                                        ETHER_CRC_LEN + VLAN_TAG_SIZE * 2;
@@ -1580,9 +1594,14 @@ static int bnxt_mtu_set_op(struct rte_eth_dev *eth_dev, uint16_t new_mtu)
                if (rc)
                        break;
 
-               rc = bnxt_hwrm_vnic_plcmode_cfg(bp, vnic);
-               if (rc)
-                       return rc;
+               size = rte_pktmbuf_data_room_size(bp->rx_queues[0]->mb_pool);
+               size -= RTE_PKTMBUF_HEADROOM;
+
+               if (size < new_mtu) {
+                       rc = bnxt_hwrm_vnic_plcmode_cfg(bp, vnic);
+                       if (rc)
+                               return rc;
+               }
        }
 
        return rc;