#include "netxen_nic_hw.h"
#include "netxen_nic.h"
-#include "netxen_nic_phan_reg.h"
#include <linux/dma-mapping.h>
#include <linux/if_vlan.h>
#include <net/ip.h>
#include <linux/ipv6.h>
+#include <linux/inetdevice.h>
MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
MODULE_LICENSE("GPL");
static void __devexit netxen_nic_remove(struct pci_dev *pdev);
static int netxen_nic_open(struct net_device *netdev);
static int netxen_nic_close(struct net_device *netdev);
-static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *);
+static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
+ struct net_device *);
static void netxen_tx_timeout(struct net_device *netdev);
-static void netxen_tx_timeout_task(struct work_struct *work);
+static void netxen_reset_task(struct work_struct *work);
static void netxen_watchdog(unsigned long);
static int netxen_nic_poll(struct napi_struct *napi, int budget);
#ifdef CONFIG_NET_POLL_CONTROLLER
static void netxen_nic_poll_controller(struct net_device *netdev);
#endif
+
+static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
+static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
+
static irqreturn_t netxen_intr(int irq, void *data);
static irqreturn_t netxen_msi_intr(int irq, void *data);
static irqreturn_t netxen_msix_intr(int irq, void *data);
MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
-static void netxen_watchdog(unsigned long);
-
static uint32_t crb_cmd_producer[4] = {
CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
- return 1;
+ return -ENOMEM;
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &recv_ctx->sds_rings[ring];
return err;
}
-static void netxen_check_options(struct netxen_adapter *adapter)
+static void
+netxen_check_options(struct netxen_adapter *adapter)
{
- if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
- adapter->num_rxd = MAX_RCV_DESCRIPTORS_10G;
- else if (adapter->ahw.port_type == NETXEN_NIC_GBE)
- adapter->num_rxd = MAX_RCV_DESCRIPTORS_1G;
+ if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
+ adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
+ adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
+ } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
+ adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
+ adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
+ }
adapter->msix_supported = 0;
if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
}
}
- adapter->num_txd = MAX_CMD_DESCRIPTORS_HOST;
- adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS;
- adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
+ adapter->num_txd = MAX_CMD_DESCRIPTORS;
- return;
+ if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+ adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
+ adapter->max_rds_rings = 3;
+ } else {
+ adapter->num_lro_rxd = 0;
+ adapter->max_rds_rings = 2;
+ }
}
static int
netxen_request_firmware(adapter);
err = netxen_need_fw_reset(adapter);
- if (err <= 0)
+ if (err < 0)
return err;
+ if (err == 0)
+ goto wait_init;
if (first_boot != 0x55555555) {
NXWR32(adapter, CRB_CMDPEG_STATE, 0);
}
- err = netxen_initialize_adapter_offload(adapter);
+ err = netxen_init_dummy_dma(adapter);
if (err)
return err;
/* Handshake with the card before we register the devices. */
err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
if (err) {
- netxen_free_adapter_offload(adapter);
+ netxen_free_dummy_dma(adapter);
return err;
}
+ nx_update_dma_mask(adapter);
+
+ netxen_nic_get_firmware_info(adapter);
+
return 0;
}
}
}
+static void
+netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
+{
+ adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
+ adapter->coal.normal.data.rx_time_us =
+ NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
+ adapter->coal.normal.data.rx_packets =
+ NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
+ adapter->coal.normal.data.tx_time_us =
+ NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
+ adapter->coal.normal.data.tx_packets =
+ NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
+}
+
static int
netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
{
if (adapter->max_sds_rings > 1)
netxen_config_rss(adapter, 1);
+ if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+ netxen_config_intr_coalesce(adapter);
+
+ if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
+ netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
+
netxen_napi_enable(adapter);
if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
netxen_p3_free_mac_list(adapter);
+ adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
+
netxen_napi_disable(adapter);
netxen_release_tx_buffers(adapter);
struct nx_host_rds_ring *rds_ring;
struct nx_host_tx_ring *tx_ring;
+ if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
+ return 0;
+
err = netxen_init_firmware(adapter);
if (err)
return err;
if (err)
return err;
- if (adapter->fw_major < 4)
- adapter->max_rds_rings = 3;
- else
- adapter->max_rds_rings = 2;
-
err = netxen_alloc_sw_resources(adapter);
if (err) {
printk(KERN_ERR "%s: Error in setting sw resources\n",
goto err_out_free_sw;
}
- if (adapter->fw_major < 4) {
+ if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
tx_ring = adapter->tx_ring;
tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum];
tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum];
goto err_out_free_rxbuf;
}
+ if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+ netxen_nic_init_coalesce_defaults(adapter);
+
+ netxen_create_sysfs_entries(adapter);
+
adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
return 0;
static void
netxen_nic_detach(struct netxen_adapter *adapter)
{
+ if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
+ return;
+
+ netxen_remove_sysfs_entries(adapter);
+
netxen_free_hw_resources(adapter);
netxen_release_rx_buffers(adapter);
netxen_nic_free_irq(adapter);
adapter->is_up = 0;
}
+int
+netxen_nic_reset_context(struct netxen_adapter *adapter)
+{
+ int err = 0;
+ struct net_device *netdev = adapter->netdev;
+
+ if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
+
+ if (netif_running(netdev))
+ netxen_nic_down(adapter, netdev);
+
+ netxen_nic_detach(adapter);
+
+ err = netxen_nic_attach(adapter);
+ if (err)
+ goto done;
+
+ if (netif_running(netdev))
+ err = netxen_nic_up(adapter, netdev);
+ }
+done:
+ return err;
+}
+
+static int
+netxen_setup_netdev(struct netxen_adapter *adapter,
+ struct net_device *netdev)
+{
+ int err = 0;
+ struct pci_dev *pdev = adapter->pdev;
+
+ adapter->rx_csum = 1;
+ adapter->mc_enabled = 0;
+ if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+ adapter->max_mc_count = 38;
+ else
+ adapter->max_mc_count = 16;
+
+ netdev->netdev_ops = &netxen_netdev_ops;
+ netdev->watchdog_timeo = 2*HZ;
+
+ netxen_nic_change_mtu(netdev, netdev->mtu);
+
+ SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
+
+ netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
+ netdev->features |= (NETIF_F_GRO);
+ netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
+
+ if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
+ netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
+ netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
+ }
+
+ if (adapter->pci_using_dac) {
+ netdev->features |= NETIF_F_HIGHDMA;
+ netdev->vlan_features |= NETIF_F_HIGHDMA;
+ }
+
+ if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
+ netdev->features |= (NETIF_F_HW_VLAN_TX);
+
+ if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
+ netdev->features |= NETIF_F_LRO;
+
+ netdev->irq = adapter->msix_entries[0].vector;
+
+ err = netxen_napi_add(adapter, netdev);
+ if (err)
+ return err;
+
+ init_timer(&adapter->watchdog_timer);
+ adapter->watchdog_timer.function = &netxen_watchdog;
+ adapter->watchdog_timer.data = (unsigned long)adapter;
+ INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
+ INIT_WORK(&adapter->tx_timeout_task, netxen_reset_task);
+
+ if (netxen_read_mac_addr(adapter))
+ dev_warn(&pdev->dev, "failed to read mac addr\n");
+
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+
+ err = register_netdev(netdev);
+ if (err) {
+ dev_err(&pdev->dev, "failed to register net device\n");
+ return err;
+ }
+
+ return 0;
+}
+
static int __devinit
netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
netdev = alloc_etherdev(sizeof(struct netxen_adapter));
if(!netdev) {
- printk(KERN_ERR"%s: Failed to allocate memory for the "
- "device block.Check system memory resource"
- " usage.\n", netxen_nic_driver_name);
+ dev_err(&pdev->dev, "failed to allocate net_device\n");
+ err = -ENOMEM;
goto err_out_free_res;
}
/* This will be reset for mezz cards */
adapter->portnum = pci_func_id;
- adapter->rx_csum = 1;
- adapter->mc_enabled = 0;
- if (NX_IS_REVISION_P3(revision_id))
- adapter->max_mc_count = 38;
- else
- adapter->max_mc_count = 16;
-
- netdev->netdev_ops = &netxen_netdev_ops;
- netdev->watchdog_timeo = 2*HZ;
-
- netxen_nic_change_mtu(netdev, netdev->mtu);
-
- SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
- netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
- netdev->features |= (NETIF_F_GRO);
- netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
-
- if (NX_IS_REVISION_P3(revision_id)) {
- netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
- netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
- }
-
- if (adapter->pci_using_dac) {
- netdev->features |= NETIF_F_HIGHDMA;
- netdev->vlan_features |= NETIF_F_HIGHDMA;
- }
-
- if (netxen_nic_get_board_info(adapter) != 0) {
- printk("%s: Error getting board config info.\n",
- netxen_nic_driver_name);
- err = -EIO;
+ err = netxen_nic_get_board_info(adapter);
+ if (err) {
+ dev_err(&pdev->dev, "Error getting board config info.\n");
goto err_out_iounmap;
}
if (err)
goto err_out_iounmap;
- nx_update_dma_mask(adapter);
-
- netxen_nic_get_firmware_info(adapter);
-
/*
* See if the firmware gave us a virtual-physical port mapping.
*/
adapter->physical_port = adapter->portnum;
- if (adapter->fw_major < 4) {
+ if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
i = NXRD32(adapter, CRB_V2P(adapter->portnum));
if (i != 0x55555555)
adapter->physical_port = i;
netxen_setup_intr(adapter);
- netdev->irq = adapter->msix_entries[0].vector;
-
- init_timer(&adapter->watchdog_timer);
- adapter->watchdog_timer.function = &netxen_watchdog;
- adapter->watchdog_timer.data = (unsigned long)adapter;
- INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
- INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
-
- err = netxen_read_mac_addr(adapter);
+ err = netxen_setup_netdev(adapter, netdev);
if (err)
- dev_warn(&pdev->dev, "failed to read mac addr\n");
-
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
-
- if ((err = register_netdev(netdev))) {
- printk(KERN_ERR "%s: register_netdev failed port #%d"
- " aborting\n", netxen_nic_driver_name,
- adapter->portnum);
- err = -EIO;
goto err_out_disable_msi;
- }
pci_set_drvdata(pdev, adapter);
err_out_disable_msi:
netxen_teardown_intr(adapter);
- netxen_free_adapter_offload(adapter);
+ netxen_free_dummy_dma(adapter);
err_out_iounmap:
netxen_cleanup_pci_map(adapter);
cancel_work_sync(&adapter->watchdog_task);
cancel_work_sync(&adapter->tx_timeout_task);
- if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
- netxen_nic_detach(adapter);
- }
+ netxen_nic_detach(adapter);
if (adapter->portnum == 0)
- netxen_free_adapter_offload(adapter);
+ netxen_free_dummy_dma(adapter);
netxen_teardown_intr(adapter);
free_netdev(netdev);
}
-
-#ifdef CONFIG_PM
-static int
-netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
+static int __netxen_nic_shutdown(struct pci_dev *pdev)
{
-
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
struct net_device *netdev = adapter->netdev;
+ int retval;
netif_device_detach(netdev);
cancel_work_sync(&adapter->watchdog_task);
cancel_work_sync(&adapter->tx_timeout_task);
- if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
- netxen_nic_detach(adapter);
+ netxen_nic_detach(adapter);
+
+ if (adapter->portnum == 0)
+ netxen_free_dummy_dma(adapter);
- pci_save_state(pdev);
+ retval = pci_save_state(pdev);
+ if (retval)
+ return retval;
if (netxen_nic_wol_supported(adapter)) {
pci_enable_wake(pdev, PCI_D3cold, 1);
}
pci_disable_device(pdev);
- pci_set_power_state(pdev, pci_choose_state(pdev, state));
return 0;
}
+static void netxen_nic_shutdown(struct pci_dev *pdev)
+{
+ if (__netxen_nic_shutdown(pdev))
+ return;
+}
+#ifdef CONFIG_PM
+static int
+netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ int retval;
+
+ retval = __netxen_nic_shutdown(pdev);
+ if (retval)
+ return retval;
+
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+ return 0;
+}
static int
netxen_nic_resume(struct pci_dev *pdev)
if (adapter->driver_mismatch)
return -EIO;
- if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) {
- err = netxen_nic_attach(adapter);
- if (err)
- return err;
- }
+ err = netxen_nic_attach(adapter);
+ if (err)
+ return err;
err = netxen_nic_up(adapter, netdev);
if (err)
return 0;
}
-static bool netxen_tso_check(struct net_device *netdev,
- struct cmd_desc_type0 *desc, struct sk_buff *skb)
+static void
+netxen_tso_check(struct net_device *netdev,
+ struct nx_host_tx_ring *tx_ring,
+ struct cmd_desc_type0 *first_desc,
+ struct sk_buff *skb)
{
- bool tso = false;
u8 opcode = TX_ETHER_PKT;
__be16 protocol = skb->protocol;
- u16 flags = 0;
+ u16 flags = 0, vid = 0;
+ u32 producer;
+ int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
+ struct cmd_desc_type0 *hwdesc;
+ struct vlan_ethhdr *vh;
if (protocol == cpu_to_be16(ETH_P_8021Q)) {
- struct vlan_ethhdr *vh = (struct vlan_ethhdr *)skb->data;
+
+ vh = (struct vlan_ethhdr *)skb->data;
protocol = vh->h_vlan_encapsulated_proto;
flags = FLAGS_VLAN_TAGGED;
+
+ } else if (vlan_tx_tag_present(skb)) {
+
+ flags = FLAGS_VLAN_OOB;
+ vid = vlan_tx_tag_get(skb);
+ netxen_set_tx_vlan_tci(first_desc, vid);
+ vlan_oob = 1;
}
if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
skb_shinfo(skb)->gso_size > 0) {
- desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
- desc->total_hdr_length =
- skb_transport_offset(skb) + tcp_hdrlen(skb);
+ hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+
+ first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
+ first_desc->total_hdr_length = hdr_len;
+ if (vlan_oob) {
+ first_desc->total_hdr_length += VLAN_HLEN;
+ first_desc->tcp_hdr_offset = VLAN_HLEN;
+ first_desc->ip_hdr_offset = VLAN_HLEN;
+ /* Only in case of TSO on vlan device */
+ flags |= FLAGS_VLAN_TAGGED;
+ }
opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
TX_TCP_LSO6 : TX_TCP_LSO;
- tso = true;
+ tso = 1;
} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
u8 l4proto;
opcode = TX_UDPV6_PKT;
}
}
- desc->tcp_hdr_offset = skb_transport_offset(skb);
- desc->ip_hdr_offset = skb_network_offset(skb);
- netxen_set_tx_flags_opcode(desc, flags, opcode);
- return tso;
+
+ first_desc->tcp_hdr_offset += skb_transport_offset(skb);
+ first_desc->ip_hdr_offset += skb_network_offset(skb);
+ netxen_set_tx_flags_opcode(first_desc, flags, opcode);
+
+ if (!tso)
+ return;
+
+ /* For LSO, we need to copy the MAC/IP/TCP headers into
+ * the descriptor ring
+ */
+ producer = tx_ring->producer;
+ copied = 0;
+ offset = 2;
+
+ if (vlan_oob) {
+ /* Create a TSO vlan header template for firmware */
+
+ hwdesc = &tx_ring->desc_head[producer];
+ tx_ring->cmd_buf_arr[producer].skb = NULL;
+
+ copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
+ hdr_len + VLAN_HLEN);
+
+ vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
+ skb_copy_from_linear_data(skb, vh, 12);
+ vh->h_vlan_proto = htons(ETH_P_8021Q);
+ vh->h_vlan_TCI = htons(vid);
+ skb_copy_from_linear_data_offset(skb, 12,
+ (char *)vh + 16, copy_len - 16);
+
+ copied = copy_len - VLAN_HLEN;
+ offset = 0;
+
+ producer = get_next_index(producer, tx_ring->num_desc);
+ }
+
+ while (copied < hdr_len) {
+
+ copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
+ (hdr_len - copied));
+
+ hwdesc = &tx_ring->desc_head[producer];
+ tx_ring->cmd_buf_arr[producer].skb = NULL;
+
+ skb_copy_from_linear_data_offset(skb, copied,
+ (char *)hwdesc + offset, copy_len);
+
+ copied += copy_len;
+ offset = 0;
+
+ producer = get_next_index(producer, tx_ring->num_desc);
+ }
+
+ tx_ring->producer = producer;
+ barrier();
}
-static void
-netxen_clean_tx_dma_mapping(struct pci_dev *pdev,
- struct netxen_cmd_buffer *pbuf, int last)
+static int
+netxen_map_tx_skb(struct pci_dev *pdev,
+ struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
{
- int k;
- struct netxen_skb_frag *buffrag;
+ struct netxen_skb_frag *nf;
+ struct skb_frag_struct *frag;
+ int i, nr_frags;
+ dma_addr_t map;
+
+ nr_frags = skb_shinfo(skb)->nr_frags;
+ nf = &pbuf->frag_array[0];
- buffrag = &pbuf->frag_array[0];
- pci_unmap_single(pdev, buffrag->dma,
- buffrag->length, PCI_DMA_TODEVICE);
+ map = pci_map_single(pdev, skb->data,
+ skb_headlen(skb), PCI_DMA_TODEVICE);
+ if (pci_dma_mapping_error(pdev, map))
+ goto out_err;
- for (k = 1; k < last; k++) {
- buffrag = &pbuf->frag_array[k];
- pci_unmap_page(pdev, buffrag->dma,
- buffrag->length, PCI_DMA_TODEVICE);
+ nf->dma = map;
+ nf->length = skb_headlen(skb);
+
+ for (i = 0; i < nr_frags; i++) {
+ frag = &skb_shinfo(skb)->frags[i];
+ nf = &pbuf->frag_array[i+1];
+
+ map = pci_map_page(pdev, frag->page, frag->page_offset,
+ frag->size, PCI_DMA_TODEVICE);
+ if (pci_dma_mapping_error(pdev, map))
+ goto unwind;
+
+ nf->dma = map;
+ nf->length = frag->size;
+ }
+
+ return 0;
+
+unwind:
+ while (i > 0) {
+ nf = &pbuf->frag_array[i];
+ pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
}
+
+ nf = &pbuf->frag_array[0];
+ pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
+
+out_err:
+ return -ENOMEM;
}
static inline void
netxen_clear_cmddesc(u64 *desc)
{
- int i;
- for (i = 0; i < 8; i++)
- desc[i] = 0ULL;
+ desc[0] = 0ULL;
+ desc[2] = 0ULL;
}
-static int
+static netdev_tx_t
netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
{
struct netxen_adapter *adapter = netdev_priv(netdev);
struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
- unsigned int first_seg_len = skb->len - skb->data_len;
struct netxen_cmd_buffer *pbuf;
struct netxen_skb_frag *buffrag;
- struct cmd_desc_type0 *hwdesc;
- struct pci_dev *pdev = adapter->pdev;
- dma_addr_t temp_dma;
+ struct cmd_desc_type0 *hwdesc, *first_desc;
+ struct pci_dev *pdev;
int i, k;
u32 producer;
int frag_count, no_of_desc;
u32 num_txd = tx_ring->num_desc;
- bool is_tso = false;
frag_count = skb_shinfo(skb)->nr_frags + 1;
}
producer = tx_ring->producer;
-
- hwdesc = &tx_ring->desc_head[producer];
- netxen_clear_cmddesc((u64 *)hwdesc);
pbuf = &tx_ring->cmd_buf_arr[producer];
- is_tso = netxen_tso_check(netdev, hwdesc, skb);
+ pdev = adapter->pdev;
+
+ if (netxen_map_tx_skb(pdev, skb, pbuf))
+ goto drop_packet;
pbuf->skb = skb;
pbuf->frag_count = frag_count;
- buffrag = &pbuf->frag_array[0];
- temp_dma = pci_map_single(pdev, skb->data, first_seg_len,
- PCI_DMA_TODEVICE);
- if (pci_dma_mapping_error(pdev, temp_dma))
- goto drop_packet;
- buffrag->dma = temp_dma;
- buffrag->length = first_seg_len;
- netxen_set_tx_frags_len(hwdesc, frag_count, skb->len);
- netxen_set_tx_port(hwdesc, adapter->portnum);
+ first_desc = hwdesc = &tx_ring->desc_head[producer];
+ netxen_clear_cmddesc((u64 *)hwdesc);
+
+ netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
+ netxen_set_tx_port(first_desc, adapter->portnum);
- hwdesc->buffer_length[0] = cpu_to_le16(first_seg_len);
- hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
+ for (i = 0; i < frag_count; i++) {
- for (i = 1, k = 1; i < frag_count; i++, k++) {
- struct skb_frag_struct *frag;
- int len, temp_len;
- unsigned long offset;
+ k = i % 4;
- /* move to next desc. if there is a need */
- if ((i & 0x3) == 0) {
- k = 0;
+ if ((k == 0) && (i > 0)) {
+ /* move to next desc.*/
producer = get_next_index(producer, num_txd);
hwdesc = &tx_ring->desc_head[producer];
netxen_clear_cmddesc((u64 *)hwdesc);
- pbuf = &tx_ring->cmd_buf_arr[producer];
- pbuf->skb = NULL;
- }
- frag = &skb_shinfo(skb)->frags[i - 1];
- len = frag->size;
- offset = frag->page_offset;
-
- temp_len = len;
- temp_dma = pci_map_page(pdev, frag->page, offset,
- len, PCI_DMA_TODEVICE);
- if (pci_dma_mapping_error(pdev, temp_dma)) {
- netxen_clean_tx_dma_mapping(pdev, pbuf, i);
- goto drop_packet;
+ tx_ring->cmd_buf_arr[producer].skb = NULL;
}
- buffrag++;
- buffrag->dma = temp_dma;
- buffrag->length = temp_len;
+ buffrag = &pbuf->frag_array[i];
- hwdesc->buffer_length[k] = cpu_to_le16(temp_len);
+ hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
switch (k) {
case 0:
- hwdesc->addr_buffer1 = cpu_to_le64(temp_dma);
+ hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
break;
case 1:
- hwdesc->addr_buffer2 = cpu_to_le64(temp_dma);
+ hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
break;
case 2:
- hwdesc->addr_buffer3 = cpu_to_le64(temp_dma);
+ hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
break;
case 3:
- hwdesc->addr_buffer4 = cpu_to_le64(temp_dma);
+ hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
break;
}
- frag++;
}
- producer = get_next_index(producer, num_txd);
-
- /* For LSO, we need to copy the MAC/IP/TCP headers into
- * the descriptor ring
- */
- if (is_tso) {
- int hdr_len, first_hdr_len, more_hdr;
- hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
- if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) {
- first_hdr_len = sizeof(struct cmd_desc_type0) - 2;
- more_hdr = 1;
- } else {
- first_hdr_len = hdr_len;
- more_hdr = 0;
- }
- /* copy the MAC/IP/TCP headers to the cmd descriptor list */
- hwdesc = &tx_ring->desc_head[producer];
- pbuf = &tx_ring->cmd_buf_arr[producer];
- pbuf->skb = NULL;
- /* copy the first 64 bytes */
- memcpy(((void *)hwdesc) + 2,
- (void *)(skb->data), first_hdr_len);
- producer = get_next_index(producer, num_txd);
+ tx_ring->producer = get_next_index(producer, num_txd);
- if (more_hdr) {
- hwdesc = &tx_ring->desc_head[producer];
- pbuf = &tx_ring->cmd_buf_arr[producer];
- pbuf->skb = NULL;
- /* copy the next 64 bytes - should be enough except
- * for pathological case
- */
- skb_copy_from_linear_data_offset(skb, first_hdr_len,
- hwdesc,
- (hdr_len -
- first_hdr_len));
- producer = get_next_index(producer, num_txd);
- }
- }
-
- tx_ring->producer = producer;
- adapter->stats.txbytes += skb->len;
+ netxen_tso_check(netdev, tx_ring, first_desc, skb);
netxen_nic_update_cmd_producer(adapter, tx_ring);
+ adapter->stats.txbytes += skb->len;
adapter->stats.xmitcalled++;
return NETDEV_TX_OK;
static void netxen_tx_timeout(struct net_device *netdev)
{
struct netxen_adapter *adapter = netdev_priv(netdev);
+
+ dev_err(&netdev->dev, "transmit timeout, resetting.\n");
schedule_work(&adapter->tx_timeout_task);
}
-static void netxen_tx_timeout_task(struct work_struct *work)
+static void netxen_reset_task(struct work_struct *work)
{
struct netxen_adapter *adapter =
container_of(work, struct netxen_adapter, tx_timeout_task);
if (!netif_running(adapter->netdev))
return;
- printk(KERN_ERR "%s %s: transmit timeout, resetting.\n",
- netxen_nic_driver_name, adapter->netdev->name);
-
netxen_napi_disable(adapter);
adapter->netdev->trans_start = jiffies;
memset(stats, 0, sizeof(*stats));
- stats->rx_packets = adapter->stats.no_rcv;
+ stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
stats->tx_packets = adapter->stats.xmitfinished;
stats->rx_bytes = adapter->stats.rxbytes;
stats->tx_bytes = adapter->stats.txbytes;
}
/* clear interrupt */
- if (adapter->fw_major < 4)
+ if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
netxen_nic_disable_int(sds_ring);
adapter->pci_write_immediate(adapter,
}
#endif
+static ssize_t
+netxen_store_bridged_mode(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t len)
+{
+ struct net_device *net = to_net_dev(dev);
+ struct netxen_adapter *adapter = netdev_priv(net);
+ unsigned long new;
+ int ret = -EINVAL;
+
+ if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
+ goto err_out;
+
+ if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
+ goto err_out;
+
+ if (strict_strtoul(buf, 2, &new))
+ goto err_out;
+
+ if (!netxen_config_bridged_mode(adapter, !!new))
+ ret = len;
+
+err_out:
+ return ret;
+}
+
+static ssize_t
+netxen_show_bridged_mode(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct net_device *net = to_net_dev(dev);
+ struct netxen_adapter *adapter;
+ int bridged_mode = 0;
+
+ adapter = netdev_priv(net);
+
+ if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
+ bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
+
+ return sprintf(buf, "%d\n", bridged_mode);
+}
+
+static struct device_attribute dev_attr_bridged_mode = {
+ .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
+ .show = netxen_show_bridged_mode,
+ .store = netxen_store_bridged_mode,
+};
+
+static void
+netxen_create_sysfs_entries(struct netxen_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct device *dev = &netdev->dev;
+
+ if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
+ /* bridged_mode control */
+ if (device_create_file(dev, &dev_attr_bridged_mode)) {
+ dev_warn(&netdev->dev,
+ "failed to create bridged_mode sysfs entry\n");
+ }
+ }
+}
+
+static void
+netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct device *dev = &netdev->dev;
+
+ if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
+ device_remove_file(dev, &dev_attr_bridged_mode);
+}
+
+static void netxen_watchdog(unsigned long);
+
+#ifdef CONFIG_INET
+
+#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
+
+static int
+netxen_destip_supported(struct netxen_adapter *adapter)
+{
+ if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
+ return 0;
+
+ if (adapter->ahw.cut_through)
+ return 0;
+
+ return 1;
+}
+
+static int netxen_netdev_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct netxen_adapter *adapter;
+ struct net_device *dev = (struct net_device *)ptr;
+ struct in_device *indev;
+
+recheck:
+ if (dev == NULL)
+ goto done;
+
+ if (dev->priv_flags & IFF_802_1Q_VLAN) {
+ dev = vlan_dev_real_dev(dev);
+ goto recheck;
+ }
+
+ if (!is_netxen_netdev(dev))
+ goto done;
+
+ adapter = netdev_priv(dev);
+
+ if (!adapter || !netxen_destip_supported(adapter))
+ goto done;
+
+ if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
+ goto done;
+
+ indev = in_dev_get(dev);
+ if (!indev)
+ goto done;
+
+ for_ifa(indev) {
+ switch (event) {
+ case NETDEV_UP:
+ netxen_config_ipaddr(adapter,
+ ifa->ifa_address, NX_IP_UP);
+ break;
+ case NETDEV_DOWN:
+ netxen_config_ipaddr(adapter,
+ ifa->ifa_address, NX_IP_DOWN);
+ break;
+ default:
+ break;
+ }
+ } endfor_ifa(indev);
+
+ in_dev_put(indev);
+done:
+ return NOTIFY_DONE;
+}
+
+static int
+netxen_inetaddr_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct netxen_adapter *adapter;
+ struct net_device *dev;
+
+ struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
+
+ dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
+
+recheck:
+ if (dev == NULL || !netif_running(dev))
+ goto done;
+
+ if (dev->priv_flags & IFF_802_1Q_VLAN) {
+ dev = vlan_dev_real_dev(dev);
+ goto recheck;
+ }
+
+ if (!is_netxen_netdev(dev))
+ goto done;
+
+ adapter = netdev_priv(dev);
+
+ if (!adapter || !netxen_destip_supported(adapter))
+ goto done;
+
+ if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
+ goto done;
+
+ switch (event) {
+ case NETDEV_UP:
+ netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
+ break;
+ case NETDEV_DOWN:
+ netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
+ break;
+ default:
+ break;
+ }
+
+done:
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block netxen_netdev_cb = {
+ .notifier_call = netxen_netdev_event,
+};
+
+static struct notifier_block netxen_inetaddr_cb = {
+ .notifier_call = netxen_inetaddr_event,
+};
+#endif
+
static struct pci_driver netxen_driver = {
.name = netxen_nic_driver_name,
.id_table = netxen_pci_tbl,
.remove = __devexit_p(netxen_nic_remove),
#ifdef CONFIG_PM
.suspend = netxen_nic_suspend,
- .resume = netxen_nic_resume
+ .resume = netxen_nic_resume,
#endif
+ .shutdown = netxen_nic_shutdown
};
-/* Driver Registration on NetXen card */
-
static int __init netxen_init_module(void)
{
printk(KERN_INFO "%s\n", netxen_nic_driver_string);
+#ifdef CONFIG_INET
+ register_netdevice_notifier(&netxen_netdev_cb);
+ register_inetaddr_notifier(&netxen_inetaddr_cb);
+#endif
+
return pci_register_driver(&netxen_driver);
}
static void __exit netxen_exit_module(void)
{
pci_unregister_driver(&netxen_driver);
+
+#ifdef CONFIG_INET
+ unregister_inetaddr_notifier(&netxen_inetaddr_cb);
+ unregister_netdevice_notifier(&netxen_netdev_cb);
+#endif
}
module_exit(netxen_exit_module);
projects / deliverable / linux.git / blobdiff