void
netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
- struct nx_host_tx_ring *tx_ring, u32 producer)
+ struct nx_host_tx_ring *tx_ring)
{
- NXWR32(adapter, tx_ring->crb_cmd_producer, producer);
+ NXWR32(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
+
+ if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
+ netif_stop_queue(adapter->netdev);
+ smp_mb();
+ }
}
static uint32_t crb_cmd_consumer[4] = {
static inline void
netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
- struct nx_host_tx_ring *tx_ring, u32 consumer)
+ struct nx_host_tx_ring *tx_ring)
{
- NXWR32(adapter, tx_ring->crb_cmd_consumer, consumer);
+ NXWR32(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
}
static uint32_t msi_tgt_status[8] = {
struct nx_host_sds_ring *sds_ring;
struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
- if ((adapter->flags & NETXEN_NIC_MSIX_ENABLED) &&
- adapter->rss_supported)
- adapter->max_sds_rings = (num_online_cpus() >= 4) ? 4 : 2;
- else
- adapter->max_sds_rings = 1;
-
if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
return 1;
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &recv_ctx->sds_rings[ring];
- netxen_nic_disable_int(sds_ring);
napi_disable(&sds_ring->napi);
+ netxen_nic_disable_int(sds_ring);
+ synchronize_irq(sds_ring->irq);
}
}
switch (adapter->ahw.board_type) {
case NETXEN_BRDTYPE_P2_SB31_10G:
case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
- case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
adapter->msix_supported = !!use_msi_x;
adapter->rss_supported = !!use_msi_x;
break;
}
}
-static void netxen_init_msix_entries(struct netxen_adapter *adapter)
+static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
{
int i;
- for (i = 0; i < MSIX_ENTRIES_PER_ADAPTER; i++)
+ for (i = 0; i < count; i++)
adapter->msix_entries[i].entry = i;
}
if (!is_valid_ether_addr(netdev->perm_addr))
dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
- else
- adapter->macaddr_set(adapter, netdev->dev_addr);
return 0;
}
+int netxen_nic_set_mac(struct net_device *netdev, void *p)
+{
+ struct netxen_adapter *adapter = netdev_priv(netdev);
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EINVAL;
+
+ if (netif_running(netdev)) {
+ netif_device_detach(netdev);
+ netxen_napi_disable(adapter);
+ }
+
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+ adapter->macaddr_set(adapter, addr->sa_data);
+
+ if (netif_running(netdev)) {
+ netif_device_attach(netdev);
+ netxen_napi_enable(adapter);
+ }
+ return 0;
+}
+
static void netxen_set_multicast_list(struct net_device *dev)
{
struct netxen_adapter *adapter = netdev_priv(dev);
- if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
- netxen_p3_nic_set_multi(dev);
- else
- netxen_p2_nic_set_multi(dev);
+ adapter->set_multi(dev);
}
static const struct net_device_ops netxen_netdev_ops = {
{
struct netxen_legacy_intr_set *legacy_intrp;
struct pci_dev *pdev = adapter->pdev;
+ int err, num_msix;
+
+ if (adapter->rss_supported) {
+ num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
+ MSIX_ENTRIES_PER_ADAPTER : 2;
+ } else
+ num_msix = 1;
+
+ adapter->max_sds_rings = 1;
adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
if (adapter->msix_supported) {
- netxen_init_msix_entries(adapter);
- if (pci_enable_msix(pdev, adapter->msix_entries,
- MSIX_ENTRIES_PER_ADAPTER))
- goto request_msi;
+ netxen_init_msix_entries(adapter, num_msix);
+ err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
+ if (err == 0) {
+ adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
+ netxen_set_msix_bit(pdev, 1);
- adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
- netxen_set_msix_bit(pdev, 1);
- dev_info(&pdev->dev, "using msi-x interrupts\n");
+ if (adapter->rss_supported)
+ adapter->max_sds_rings = num_msix;
- } else {
-request_msi:
- if (use_msi && !pci_enable_msi(pdev)) {
- adapter->flags |= NETXEN_NIC_MSI_ENABLED;
- dev_info(&pdev->dev, "using msi interrupts\n");
- } else
- dev_info(&pdev->dev, "using legacy interrupts\n");
+ dev_info(&pdev->dev, "using msi-x interrupts\n");
+ return;
+ }
+
+ if (err > 0)
+ pci_disable_msix(pdev);
+
+ /* fall through for msi */
+ }
+
+ if (use_msi && !pci_enable_msi(pdev)) {
+ adapter->flags |= NETXEN_NIC_MSI_ENABLED;
+ adapter->msi_tgt_status =
+ msi_tgt_status[adapter->ahw.pci_func];
+ dev_info(&pdev->dev, "using msi interrupts\n");
adapter->msix_entries[0].vector = pdev->irq;
+ return;
}
+
+ dev_info(&pdev->dev, "using legacy interrupts\n");
+ adapter->msix_entries[0].vector = pdev->irq;
}
static void
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &recv_ctx->sds_rings[ring];
- sprintf(sds_ring->name, "%16s[%d]", netdev->name, ring);
+ sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
err = request_irq(sds_ring->irq, handler,
flags, sds_ring->name, sds_ring);
if (err)
netxen_nic_driver_name, adapter->portnum);
return err;
}
- adapter->macaddr_set(adapter, netdev->dev_addr);
-
- netxen_nic_set_link_parameters(adapter);
+ if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
+ adapter->macaddr_set(adapter, netdev->dev_addr);
- netxen_set_multicast_list(netdev);
- if (adapter->set_mtu)
- adapter->set_mtu(adapter, netdev->mtu);
+ adapter->set_multi(netdev);
+ adapter->set_mtu(adapter, netdev->mtu);
adapter->ahw.linkup = 0;
- mod_timer(&adapter->watchdog_timer, jiffies);
netxen_napi_enable(adapter);
if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
netxen_linkevent_request(adapter, 1);
+ else
+ netxen_nic_set_link_parameters(adapter);
+
+ mod_timer(&adapter->watchdog_timer, jiffies);
return 0;
}
{
netif_carrier_off(netdev);
netif_stop_queue(netdev);
- netxen_napi_disable(adapter);
if (adapter->stop_port)
adapter->stop_port(adapter);
+ if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+ netxen_p3_free_mac_list(adapter);
+
+ netxen_napi_disable(adapter);
+
netxen_release_tx_buffers(adapter);
FLUSH_SCHEDULED_WORK();
tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum];
tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum];
- netxen_nic_update_cmd_producer(adapter, tx_ring, 0);
- netxen_nic_update_cmd_consumer(adapter, tx_ring, 0);
+ tx_ring->producer = 0;
+ tx_ring->sw_consumer = 0;
+
+ netxen_nic_update_cmd_producer(adapter, tx_ring);
+ netxen_nic_update_cmd_consumer(adapter, tx_ring);
}
for (ring = 0; ring < adapter->max_rds_rings; ring++) {
static void
netxen_nic_detach(struct netxen_adapter *adapter)
{
- netxen_nic_free_irq(adapter);
-
netxen_release_rx_buffers(adapter);
netxen_free_hw_resources(adapter);
+ netxen_nic_free_irq(adapter);
netxen_free_sw_resources(adapter);
adapter->is_up = 0;
rwlock_init(&adapter->adapter_lock);
spin_lock_init(&adapter->tx_clean_lock);
+ INIT_LIST_HEAD(&adapter->mac_list);
err = netxen_setup_pci_map(adapter);
if (err)
if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
netxen_nic_detach(adapter);
-
- if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
- netxen_p3_free_mac_list(adapter);
}
if (adapter->portnum == 0)
free_netdev(netdev);
}
+#ifdef CONFIG_PM
static int
netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
{
return 0;
}
+#endif
static int netxen_nic_open(struct net_device *netdev)
{
dma_addr_t temp_dma;
int i, k;
- u32 producer, consumer;
+ u32 producer;
int frag_count, no_of_desc;
u32 num_txd = tx_ring->num_desc;
bool is_tso = false;
/* 4 fragments per cmd des */
no_of_desc = (frag_count + 3) >> 2;
- producer = tx_ring->producer;
- smp_mb();
- consumer = tx_ring->sw_consumer;
- if ((no_of_desc+2) > find_diff_among(producer, consumer, num_txd)) {
+ if (unlikely(no_of_desc + 2) > netxen_tx_avail(tx_ring)) {
netif_stop_queue(netdev);
- smp_mb();
return NETDEV_TX_BUSY;
}
+ producer = tx_ring->producer;
+
hwdesc = &tx_ring->desc_head[producer];
netxen_clear_cmddesc((u64 *)hwdesc);
pbuf = &tx_ring->cmd_buf_arr[producer];
tx_ring->producer = producer;
adapter->stats.txbytes += skb->len;
- netxen_nic_update_cmd_producer(adapter, tx_ring, producer);
+ netxen_nic_update_cmd_producer(adapter, tx_ring);
adapter->stats.xmitcalled++;
- netdev->trans_start = jiffies;
return NETDEV_TX_OK;
/* clear interrupt */
adapter->pci_write_immediate(adapter,
- msi_tgt_status[adapter->ahw.pci_func], 0xffffffff);
+ adapter->msi_tgt_status, 0xffffffff);
napi_schedule(&sds_ring->napi);
return IRQ_HANDLED;
.id_table = netxen_pci_tbl,
.probe = netxen_nic_probe,
.remove = __devexit_p(netxen_nic_remove),
+#ifdef CONFIG_PM
.suspend = netxen_nic_suspend,
.resume = netxen_nic_resume
+#endif
};
/* Driver Registration on NetXen card */
projects / firefly-linux-kernel-4.4.55.git / blobdiff