New upstream version 18.02
[deb_dpdk.git] / drivers / net / nfp / nfp_net.c
index 0501156..e5bfde6 100644 (file)
@@ -43,7 +43,7 @@
 #include <rte_common.h>
 #include <rte_log.h>
 #include <rte_debug.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
 #include <rte_ethdev_pci.h>
 #include <rte_dev.h>
 #include <rte_ether.h>
@@ -95,6 +95,15 @@ static void nfp_net_stop(struct rte_eth_dev *dev);
 static uint16_t nfp_net_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
                                  uint16_t nb_pkts);
 
+static int nfp_net_rss_config_default(struct rte_eth_dev *dev);
+static int nfp_net_rss_hash_update(struct rte_eth_dev *dev,
+                                  struct rte_eth_rss_conf *rss_conf);
+static int nfp_net_rss_reta_write(struct rte_eth_dev *dev,
+                   struct rte_eth_rss_reta_entry64 *reta_conf,
+                   uint16_t reta_size);
+static int nfp_net_rss_hash_write(struct rte_eth_dev *dev,
+                       struct rte_eth_rss_conf *rss_conf);
+
 /*
  * The offset of the queue controller queues in the PCIe Target. These
  * happen to be at the same offset on the NFP6000 and the NFP3200 so
@@ -489,12 +498,10 @@ nfp_net_configure(struct rte_eth_dev *dev)
        }
 
        if (rxmode->jumbo_frame)
-               /* this is handled in rte_eth_dev_configure */
+               hw->mtu = rxmode->max_rx_pkt_len;
 
-       if (rxmode->hw_strip_crc) {
-               PMD_INIT_LOG(INFO, "strip CRC not supported");
-               return -EINVAL;
-       }
+       if (!rxmode->hw_strip_crc)
+               PMD_INIT_LOG(INFO, "HW does strip CRC and it is not configurable");
 
        if (rxmode->enable_scatter) {
                PMD_INIT_LOG(INFO, "Scatter not supported");
@@ -737,6 +744,8 @@ nfp_net_start(struct rte_eth_dev *dev)
 {
        struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
        struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
+       struct rte_eth_conf *dev_conf;
+       struct rte_eth_rxmode *rxmode;
        uint32_t new_ctrl, update = 0;
        struct nfp_net_hw *hw;
        uint32_t intr_vector;
@@ -786,6 +795,19 @@ nfp_net_start(struct rte_eth_dev *dev)
 
        rte_intr_enable(intr_handle);
 
+       dev_conf = &dev->data->dev_conf;
+       rxmode = &dev_conf->rxmode;
+
+       /* Checking RX mode */
+       if (rxmode->mq_mode & ETH_MQ_RX_RSS) {
+               if (hw->cap & NFP_NET_CFG_CTRL_RSS) {
+                       if (!nfp_net_rss_config_default(dev))
+                               update |= NFP_NET_CFG_UPDATE_RSS;
+               } else {
+                       PMD_INIT_LOG(INFO, "RSS not supported");
+                       return -EINVAL;
+               }
+       }
        /* Enable device */
        new_ctrl = hw->ctrl | NFP_NET_CFG_CTRL_ENABLE;
 
@@ -1196,7 +1218,7 @@ nfp_net_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
        dev_info->max_rx_queues = (uint16_t)hw->max_rx_queues;
        dev_info->max_tx_queues = (uint16_t)hw->max_tx_queues;
        dev_info->min_rx_bufsize = ETHER_MIN_MTU;
-       dev_info->max_rx_pktlen = hw->mtu;
+       dev_info->max_rx_pktlen = hw->max_mtu;
        /* Next should change when PF support is implemented */
        dev_info->max_mac_addrs = 1;
 
@@ -1450,7 +1472,7 @@ nfp_net_dev_interrupt_delayed_handler(void *param)
        struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
 
        nfp_net_link_update(dev, 0);
-       _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL, NULL);
+       _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL);
 
        nfp_net_dev_link_status_print(dev);
 
@@ -1469,6 +1491,13 @@ nfp_net_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
        if ((mtu < ETHER_MIN_MTU) || ((uint32_t)mtu > hw->max_mtu))
                return -EINVAL;
 
+       /* mtu setting is forbidden if port is started */
+       if (dev->data->dev_started) {
+               PMD_DRV_LOG(ERR, "port %d must be stopped before configuration",
+                           dev->data->port_id);
+               return -EBUSY;
+       }
+
        /* switch to jumbo mode if needed */
        if ((uint32_t)mtu > ETHER_MAX_LEN)
                dev->data->dev_conf.rxmode.jumbo_frame = 1;
@@ -2345,22 +2374,17 @@ nfp_net_vlan_offload_set(struct rte_eth_dev *dev, int mask)
        return ret;
 }
 
-/* Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device */
 static int
-nfp_net_reta_update(struct rte_eth_dev *dev,
+nfp_net_rss_reta_write(struct rte_eth_dev *dev,
                    struct rte_eth_rss_reta_entry64 *reta_conf,
                    uint16_t reta_size)
 {
        uint32_t reta, mask;
        int i, j;
        int idx, shift;
-       uint32_t update;
        struct nfp_net_hw *hw =
                NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 
-       if (!(hw->ctrl & NFP_NET_CFG_CTRL_RSS))
-               return -EINVAL;
-
        if (reta_size != NFP_NET_CFG_RSS_ITBL_SZ) {
                RTE_LOG(ERR, PMD, "The size of hash lookup table configured "
                        "(%d) doesn't match the number hardware can supported "
@@ -2397,6 +2421,26 @@ nfp_net_reta_update(struct rte_eth_dev *dev,
                nn_cfg_writel(hw, NFP_NET_CFG_RSS_ITBL + (idx * 64) + shift,
                              reta);
        }
+       return 0;
+}
+
+/* Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device */
+static int
+nfp_net_reta_update(struct rte_eth_dev *dev,
+                   struct rte_eth_rss_reta_entry64 *reta_conf,
+                   uint16_t reta_size)
+{
+       struct nfp_net_hw *hw =
+               NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       uint32_t update;
+       int ret;
+
+       if (!(hw->ctrl & NFP_NET_CFG_CTRL_RSS))
+               return -EINVAL;
+
+       ret = nfp_net_rss_reta_write(dev, reta_conf, reta_size);
+       if (ret != 0)
+               return ret;
 
        update = NFP_NET_CFG_UPDATE_RSS;
 
@@ -2455,33 +2499,24 @@ nfp_net_reta_query(struct rte_eth_dev *dev,
 }
 
 static int
-nfp_net_rss_hash_update(struct rte_eth_dev *dev,
+nfp_net_rss_hash_write(struct rte_eth_dev *dev,
                        struct rte_eth_rss_conf *rss_conf)
 {
-       uint32_t update;
+       struct nfp_net_hw *hw;
+       uint64_t rss_hf;
        uint32_t cfg_rss_ctrl = 0;
        uint8_t key;
-       uint64_t rss_hf;
        int i;
-       struct nfp_net_hw *hw;
 
        hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 
-       rss_hf = rss_conf->rss_hf;
-
-       /* Checking if RSS is enabled */
-       if (!(hw->ctrl & NFP_NET_CFG_CTRL_RSS)) {
-               if (rss_hf != 0) { /* Enable RSS? */
-                       RTE_LOG(ERR, PMD, "RSS unsupported\n");
-                       return -EINVAL;
-               }
-               return 0; /* Nothing to do */
+       /* Writing the key byte a byte */
+       for (i = 0; i < rss_conf->rss_key_len; i++) {
+               memcpy(&key, &rss_conf->rss_key[i], 1);
+               nn_cfg_writeb(hw, NFP_NET_CFG_RSS_KEY + i, key);
        }
 
-       if (rss_conf->rss_key_len > NFP_NET_CFG_RSS_KEY_SZ) {
-               RTE_LOG(ERR, PMD, "hash key too long\n");
-               return -EINVAL;
-       }
+       rss_hf = rss_conf->rss_hf;
 
        if (rss_hf & ETH_RSS_IPV4)
                cfg_rss_ctrl |= NFP_NET_CFG_RSS_IPV4 |
@@ -2499,15 +2534,40 @@ nfp_net_rss_hash_update(struct rte_eth_dev *dev,
        /* configuring where to apply the RSS hash */
        nn_cfg_writel(hw, NFP_NET_CFG_RSS_CTRL, cfg_rss_ctrl);
 
-       /* Writing the key byte a byte */
-       for (i = 0; i < rss_conf->rss_key_len; i++) {
-               memcpy(&key, &rss_conf->rss_key[i], 1);
-               nn_cfg_writeb(hw, NFP_NET_CFG_RSS_KEY + i, key);
-       }
-
        /* Writing the key size */
        nn_cfg_writeb(hw, NFP_NET_CFG_RSS_KEY_SZ, rss_conf->rss_key_len);
 
+       return 0;
+}
+
+static int
+nfp_net_rss_hash_update(struct rte_eth_dev *dev,
+                       struct rte_eth_rss_conf *rss_conf)
+{
+       uint32_t update;
+       uint64_t rss_hf;
+       struct nfp_net_hw *hw;
+
+       hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+       rss_hf = rss_conf->rss_hf;
+
+       /* Checking if RSS is enabled */
+       if (!(hw->ctrl & NFP_NET_CFG_CTRL_RSS)) {
+               if (rss_hf != 0) { /* Enable RSS? */
+                       RTE_LOG(ERR, PMD, "RSS unsupported\n");
+                       return -EINVAL;
+               }
+               return 0; /* Nothing to do */
+       }
+
+       if (rss_conf->rss_key_len > NFP_NET_CFG_RSS_KEY_SZ) {
+               RTE_LOG(ERR, PMD, "hash key too long\n");
+               return -EINVAL;
+       }
+
+       nfp_net_rss_hash_write(dev, rss_conf);
+
        update = NFP_NET_CFG_UPDATE_RSS;
 
        if (nfp_net_reconfig(hw, hw->ctrl, update) < 0)
@@ -2564,6 +2624,47 @@ nfp_net_rss_hash_conf_get(struct rte_eth_dev *dev,
        return 0;
 }
 
+static int
+nfp_net_rss_config_default(struct rte_eth_dev *dev)
+{
+       struct rte_eth_conf *dev_conf;
+       struct rte_eth_rss_conf rss_conf;
+       struct rte_eth_rss_reta_entry64 nfp_reta_conf[2];
+       uint16_t rx_queues = dev->data->nb_rx_queues;
+       uint16_t queue;
+       int i, j, ret;
+
+       RTE_LOG(INFO, PMD, "setting default RSS conf for %u queues\n",
+               rx_queues);
+
+       nfp_reta_conf[0].mask = ~0x0;
+       nfp_reta_conf[1].mask = ~0x0;
+
+       queue = 0;
+       for (i = 0; i < 0x40; i += 8) {
+               for (j = i; j < (i + 8); j++) {
+                       nfp_reta_conf[0].reta[j] = queue;
+                       nfp_reta_conf[1].reta[j] = queue++;
+                       queue %= rx_queues;
+               }
+       }
+       ret = nfp_net_rss_reta_write(dev, nfp_reta_conf, 0x80);
+       if (ret != 0)
+               return ret;
+
+       dev_conf = &dev->data->dev_conf;
+       if (!dev_conf) {
+               RTE_LOG(INFO, PMD, "wrong rss conf");
+               return -EINVAL;
+       }
+       rss_conf = dev_conf->rx_adv_conf.rss_conf;
+
+       ret = nfp_net_rss_hash_write(dev, &rss_conf);
+
+       return ret;
+}
+
+
 /* Initialise and register driver with DPDK Application */
 static const struct eth_dev_ops nfp_net_eth_dev_ops = {
        .dev_configure          = nfp_net_configure,
@@ -2774,7 +2875,7 @@ nfp_net_init(struct rte_eth_dev *eth_dev)
        hw->ver = nn_cfg_readl(hw, NFP_NET_CFG_VERSION);
        hw->cap = nn_cfg_readl(hw, NFP_NET_CFG_CAP);
        hw->max_mtu = nn_cfg_readl(hw, NFP_NET_CFG_MAX_MTU);
-       hw->mtu = hw->max_mtu;
+       hw->mtu = ETHER_MTU;
 
        if (NFD_CFG_MAJOR_VERSION_of(hw->ver) < 2)
                hw->rx_offset = NFP_NET_RX_OFFSET;
@@ -2984,6 +3085,9 @@ nfpu_error:
        return ret;
 }
 
+int nfp_logtype_init;
+int nfp_logtype_driver;
+
 static const struct rte_pci_id pci_id_nfp_pf_net_map[] = {
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_NETRONOME,
@@ -3057,6 +3161,17 @@ RTE_PMD_REGISTER_PCI_TABLE(net_nfp_vf, pci_id_nfp_vf_net_map);
 RTE_PMD_REGISTER_KMOD_DEP(net_nfp_pf, "* igb_uio | uio_pci_generic | vfio");
 RTE_PMD_REGISTER_KMOD_DEP(net_nfp_vf, "* igb_uio | uio_pci_generic | vfio");
 
+RTE_INIT(nfp_init_log);
+static void
+nfp_init_log(void)
+{
+       nfp_logtype_init = rte_log_register("pmd.net.nfp.init");
+       if (nfp_logtype_init >= 0)
+               rte_log_set_level(nfp_logtype_init, RTE_LOG_NOTICE);
+       nfp_logtype_driver = rte_log_register("pmd.net.nfp.driver");
+       if (nfp_logtype_driver >= 0)
+               rte_log_set_level(nfp_logtype_driver, RTE_LOG_NOTICE);
+}
 /*
  * Local variables:
  * c-file-style: "Linux"