Imported Upstream version 17.05
[deb_dpdk.git] / drivers / net / vmxnet3 / vmxnet3_ethdev.c
index 8bb13e5..98252bb 100644 (file)
@@ -56,6 +56,7 @@
 #include <rte_alarm.h>
 #include <rte_ether.h>
 #include <rte_ethdev.h>
+#include <rte_ethdev_pci.h>
 #include <rte_atomic.h>
 #include <rte_string_fns.h>
 #include <rte_malloc.h>
@@ -69,6 +70,8 @@
 
 #define PROCESS_SYS_EVENTS 0
 
+#define        VMXNET3_TX_MAX_SEG      UINT8_MAX
+
 static int eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev);
 static int eth_vmxnet3_dev_uninit(struct rte_eth_dev *eth_dev);
 static int vmxnet3_dev_configure(struct rte_eth_dev *dev);
@@ -138,7 +141,7 @@ gpa_zone_reserve(struct rte_eth_dev *dev, uint32_t size,
        const struct rte_memzone *mz;
 
        snprintf(z_name, sizeof(z_name), "%s_%d_%s",
-                dev->driver->pci_drv.driver.name, dev->data->port_id, post_string);
+                dev->data->drv_name, dev->data->port_id, post_string);
 
        mz = rte_memzone_lookup(z_name);
        if (!reuse) {
@@ -222,6 +225,24 @@ vmxnet3_disable_intr(struct vmxnet3_hw *hw)
                VMXNET3_WRITE_BAR0_REG(hw, VMXNET3_REG_IMR + i * 8, 1);
 }
 
+/*
+ * Gets tx data ring descriptor size.
+ */
+static uint16_t
+eth_vmxnet3_txdata_get(struct vmxnet3_hw *hw)
+{
+       uint16 txdata_desc_size;
+
+       VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
+                              VMXNET3_CMD_GET_TXDATA_DESC_SIZE);
+       txdata_desc_size = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
+
+       return (txdata_desc_size < VMXNET3_TXDATA_DESC_MIN_SIZE ||
+               txdata_desc_size > VMXNET3_TXDATA_DESC_MAX_SIZE ||
+               txdata_desc_size & VMXNET3_TXDATA_DESC_SIZE_MASK) ?
+               sizeof(struct Vmxnet3_TxDataDesc) : txdata_desc_size;
+}
+
 /*
  * It returns 0 on success.
  */
@@ -237,7 +258,8 @@ eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
        eth_dev->dev_ops = &vmxnet3_eth_dev_ops;
        eth_dev->rx_pkt_burst = &vmxnet3_recv_pkts;
        eth_dev->tx_pkt_burst = &vmxnet3_xmit_pkts;
-       pci_dev = eth_dev->pci_dev;
+       eth_dev->tx_pkt_prepare = vmxnet3_prep_pkts;
+       pci_dev = RTE_DEV_TO_PCI(eth_dev->device);
 
        /*
         * for secondary processes, we don't initialize any further as primary
@@ -247,6 +269,7 @@ eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
                return 0;
 
        rte_eth_copy_pci_info(eth_dev, pci_dev);
+       eth_dev->data->dev_flags |= RTE_ETH_DEV_DETACHABLE;
 
        /* Vendor and Device ID need to be set before init of shared code */
        hw->device_id = pci_dev->id.device_id;
@@ -261,13 +284,26 @@ eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
        /* Check h/w version compatibility with driver. */
        ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_VRRS);
        PMD_INIT_LOG(DEBUG, "Hardware version : %d", ver);
-       if (ver & 0x1)
-               VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS, 1);
-       else {
-               PMD_INIT_LOG(ERR, "Incompatible h/w version, should be 0x1");
+
+       if (ver & (1 << VMXNET3_REV_3)) {
+               VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
+                                      1 << VMXNET3_REV_3);
+               hw->version = VMXNET3_REV_3 + 1;
+       } else if (ver & (1 << VMXNET3_REV_2)) {
+               VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
+                                      1 << VMXNET3_REV_2);
+               hw->version = VMXNET3_REV_2 + 1;
+       } else if (ver & (1 << VMXNET3_REV_1)) {
+               VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
+                                      1 << VMXNET3_REV_1);
+               hw->version = VMXNET3_REV_1 + 1;
+       } else {
+               PMD_INIT_LOG(ERR, "Incompatible hardware version: %d", ver);
                return -EIO;
        }
 
+       PMD_INIT_LOG(DEBUG, "Using device version %d\n", hw->version);
+
        /* Check UPT version compatibility with driver. */
        ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_UVRS);
        PMD_INIT_LOG(DEBUG, "UPT hardware version : %d", ver);
@@ -307,6 +343,14 @@ eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
        /* allow untagged pkts */
        VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, 0);
 
+       hw->txdata_desc_size = VMXNET3_VERSION_GE_3(hw) ?
+               eth_vmxnet3_txdata_get(hw) : sizeof(struct Vmxnet3_TxDataDesc);
+
+       hw->rxdata_desc_size = VMXNET3_VERSION_GE_3(hw) ?
+               VMXNET3_DEF_RXDATA_DESC_SIZE : 0;
+       RTE_ASSERT((hw->rxdata_desc_size & ~VMXNET3_RXDATA_DESC_SIZE_MASK) ==
+                  hw->rxdata_desc_size);
+
        return 0;
 }
 
@@ -326,6 +370,7 @@ eth_vmxnet3_dev_uninit(struct rte_eth_dev *eth_dev)
        eth_dev->dev_ops = NULL;
        eth_dev->rx_pkt_burst = NULL;
        eth_dev->tx_pkt_burst = NULL;
+       eth_dev->tx_pkt_prepare = NULL;
 
        rte_free(eth_dev->data->mac_addrs);
        eth_dev->data->mac_addrs = NULL;
@@ -333,16 +378,23 @@ eth_vmxnet3_dev_uninit(struct rte_eth_dev *eth_dev)
        return 0;
 }
 
-static struct eth_driver rte_vmxnet3_pmd = {
-       .pci_drv = {
-               .id_table = pci_id_vmxnet3_map,
-               .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_DETACHABLE,
-               .probe = rte_eth_dev_pci_probe,
-               .remove = rte_eth_dev_pci_remove,
-       },
-       .eth_dev_init = eth_vmxnet3_dev_init,
-       .eth_dev_uninit = eth_vmxnet3_dev_uninit,
-       .dev_private_size = sizeof(struct vmxnet3_hw),
+static int eth_vmxnet3_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
+       struct rte_pci_device *pci_dev)
+{
+       return rte_eth_dev_pci_generic_probe(pci_dev,
+               sizeof(struct vmxnet3_hw), eth_vmxnet3_dev_init);
+}
+
+static int eth_vmxnet3_pci_remove(struct rte_pci_device *pci_dev)
+{
+       return rte_eth_dev_pci_generic_remove(pci_dev, eth_vmxnet3_dev_uninit);
+}
+
+static struct rte_pci_driver rte_vmxnet3_pmd = {
+       .id_table = pci_id_vmxnet3_map,
+       .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
+       .probe = eth_vmxnet3_pci_probe,
+       .remove = eth_vmxnet3_pci_remove,
 };
 
 static int
@@ -448,6 +500,92 @@ vmxnet3_write_mac(struct vmxnet3_hw *hw, const uint8_t *addr)
        VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_MACH, val);
 }
 
+static int
+vmxnet3_dev_setup_memreg(struct rte_eth_dev *dev)
+{
+       struct vmxnet3_hw *hw = dev->data->dev_private;
+       Vmxnet3_DriverShared *shared = hw->shared;
+       Vmxnet3_CmdInfo *cmdInfo;
+       struct rte_mempool *mp[VMXNET3_MAX_RX_QUEUES];
+       uint8_t index[VMXNET3_MAX_RX_QUEUES + VMXNET3_MAX_TX_QUEUES];
+       uint32_t num, i, j, size;
+
+       if (hw->memRegsPA == 0) {
+               const struct rte_memzone *mz;
+
+               size = sizeof(Vmxnet3_MemRegs) +
+                       (VMXNET3_MAX_RX_QUEUES + VMXNET3_MAX_TX_QUEUES) *
+                       sizeof(Vmxnet3_MemoryRegion);
+
+               mz = gpa_zone_reserve(dev, size, "memRegs", rte_socket_id(), 8,
+                                     1);
+               if (mz == NULL) {
+                       PMD_INIT_LOG(ERR, "ERROR: Creating memRegs zone");
+                       return -ENOMEM;
+               }
+               memset(mz->addr, 0, mz->len);
+               hw->memRegs = mz->addr;
+               hw->memRegsPA = mz->phys_addr;
+       }
+
+       num = hw->num_rx_queues;
+
+       for (i = 0; i < num; i++) {
+               vmxnet3_rx_queue_t *rxq = dev->data->rx_queues[i];
+
+               mp[i] = rxq->mp;
+               index[i] = 1 << i;
+       }
+
+       /*
+        * The same mempool could be used by multiple queues. In such a case,
+        * remove duplicate mempool entries. Only one entry is kept with
+        * bitmask indicating queues that are using this mempool.
+        */
+       for (i = 1; i < num; i++) {
+               for (j = 0; j < i; j++) {
+                       if (mp[i] == mp[j]) {
+                               mp[i] = NULL;
+                               index[j] |= 1 << i;
+                               break;
+                       }
+               }
+       }
+
+       j = 0;
+       for (i = 0; i < num; i++) {
+               if (mp[i] == NULL)
+                       continue;
+
+               Vmxnet3_MemoryRegion *mr = &hw->memRegs->memRegs[j];
+
+               mr->startPA =
+                       (uintptr_t)STAILQ_FIRST(&mp[i]->mem_list)->phys_addr;
+               mr->length = STAILQ_FIRST(&mp[i]->mem_list)->len <= INT32_MAX ?
+                       STAILQ_FIRST(&mp[i]->mem_list)->len : INT32_MAX;
+               mr->txQueueBits = index[i];
+               mr->rxQueueBits = index[i];
+
+               PMD_INIT_LOG(INFO,
+                            "index: %u startPA: %" PRIu64 " length: %u, "
+                            "rxBits: %x",
+                            j, mr->startPA, mr->length, mr->rxQueueBits);
+               j++;
+       }
+       hw->memRegs->numRegs = j;
+       PMD_INIT_LOG(INFO, "numRegs: %u", j);
+
+       size = sizeof(Vmxnet3_MemRegs) +
+               (j - 1) * sizeof(Vmxnet3_MemoryRegion);
+
+       cmdInfo = &shared->cu.cmdInfo;
+       cmdInfo->varConf.confVer = 1;
+       cmdInfo->varConf.confLen = size;
+       cmdInfo->varConf.confPA = hw->memRegsPA;
+
+       return 0;
+}
+
 static int
 vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
 {
@@ -497,6 +635,7 @@ vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
                tqd->conf.txRingSize   = txq->cmd_ring.size;
                tqd->conf.compRingSize = txq->comp_ring.size;
                tqd->conf.dataRingSize = txq->data_ring.size;
+               tqd->conf.txDataRingDescSize = txq->txdata_desc_size;
                tqd->conf.intrIdx      = txq->comp_ring.intr_idx;
                tqd->status.stopped    = TRUE;
                tqd->status.error      = 0;
@@ -515,6 +654,10 @@ vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
                rqd->conf.rxRingSize[1]   = rxq->cmd_ring[1].size;
                rqd->conf.compRingSize    = rxq->comp_ring.size;
                rqd->conf.intrIdx         = rxq->comp_ring.intr_idx;
+               if (VMXNET3_VERSION_GE_3(hw)) {
+                       rqd->conf.rxDataRingBasePA = rxq->data_ring.basePA;
+                       rqd->conf.rxDataRingDescSize = rxq->data_desc_size;
+               }
                rqd->status.stopped       = TRUE;
                rqd->status.error         = 0;
                memset(&rqd->stats, 0, sizeof(rqd->stats));
@@ -583,6 +726,20 @@ vmxnet3_dev_start(struct rte_eth_dev *dev)
                return -EINVAL;
        }
 
+       /* Setup memory region for rx buffers */
+       ret = vmxnet3_dev_setup_memreg(dev);
+       if (ret == 0) {
+               VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
+                                      VMXNET3_CMD_REGISTER_MEMREGS);
+               ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
+               if (ret != 0)
+                       PMD_INIT_LOG(DEBUG,
+                                    "Failed in setup memory region cmd\n");
+               ret = 0;
+       } else {
+               PMD_INIT_LOG(DEBUG, "Failed to setup memory region\n");
+       }
+
        /* Disable interrupts */
        vmxnet3_disable_intr(hw);
 
@@ -596,6 +753,8 @@ vmxnet3_dev_start(struct rte_eth_dev *dev)
                return ret;
        }
 
+       hw->adapter_stopped = FALSE;
+
        /* Setting proper Rx Mode and issue Rx Mode Update command */
        vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_UCAST | VMXNET3_RXM_BCAST, 1);
 
@@ -706,13 +865,16 @@ vmxnet3_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 }
 
 static void
-vmxnet3_dev_info_get(__rte_unused struct rte_eth_dev *dev,
+vmxnet3_dev_info_get(struct rte_eth_dev *dev,
                     struct rte_eth_dev_info *dev_info)
 {
+       dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device);
+
        dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
        dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
        dev_info->min_rx_bufsize = 1518 + RTE_PKTMBUF_HEADROOM;
        dev_info->max_rx_pktlen = 16384; /* includes CRC, cf MAXFRS register */
+       dev_info->speed_capa = ETH_LINK_SPEED_10G;
        dev_info->max_mac_addrs = VMXNET3_MAX_MAC_ADDRS;
 
        dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
@@ -728,6 +890,8 @@ vmxnet3_dev_info_get(__rte_unused struct rte_eth_dev *dev,
                .nb_max = VMXNET3_TX_RING_MAX_SIZE,
                .nb_min = VMXNET3_DEF_TX_RING_SIZE,
                .nb_align = 1,
+               .nb_seg_max = VMXNET3_TX_MAX_SEG,
+               .nb_mtu_seg_max = VMXNET3_MAX_TXD_PER_PKT,
        };
 
        dev_info->rx_offload_capa =
@@ -771,7 +935,7 @@ vmxnet3_dev_link_update(struct rte_eth_dev *dev,
                        __rte_unused int wait_to_complete)
 {
        struct vmxnet3_hw *hw = dev->data->dev_private;
-       struct rte_eth_link old, link;
+       struct rte_eth_link old = { 0 }, link;
        uint32_t ret;
 
        /* Link status doesn't change for stopped dev */
@@ -960,5 +1124,6 @@ vmxnet3_process_events(struct vmxnet3_hw *hw)
 }
 #endif
 
-RTE_PMD_REGISTER_PCI(net_vmxnet3, rte_vmxnet3_pmd.pci_drv);
+RTE_PMD_REGISTER_PCI(net_vmxnet3, rte_vmxnet3_pmd);
 RTE_PMD_REGISTER_PCI_TABLE(net_vmxnet3, pci_id_vmxnet3_map);
+RTE_PMD_REGISTER_KMOD_DEP(net_vmxnet3, "* igb_uio | uio_pci_generic | vfio");