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path: root/drivers/staging/benet/be_netif.c
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-rw-r--r--drivers/staging/benet/be_netif.c705
1 files changed, 705 insertions, 0 deletions
diff --git a/drivers/staging/benet/be_netif.c b/drivers/staging/benet/be_netif.c
new file mode 100644
index 000000000000..2b8daf63dc7d
--- /dev/null
+++ b/drivers/staging/benet/be_netif.c
@@ -0,0 +1,705 @@
+/*
+ * Copyright (C) 2005 - 2008 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation. The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+/*
+ * be_netif.c
+ *
+ * This file contains various entry points of drivers seen by tcp/ip stack.
+ */
+
+#include <linux/if_vlan.h>
+#include <linux/in.h>
+#include "benet.h"
+#include <linux/ip.h>
+#include <linux/inet_lro.h>
+
+/* Strings to print Link properties */
+static const char *link_speed[] = {
+ "Invalid link Speed Value",
+ "10 Mbps",
+ "100 Mbps",
+ "1 Gbps",
+ "10 Gbps"
+};
+
+static const char *link_duplex[] = {
+ "Invalid Duplex Value",
+ "Half Duplex",
+ "Full Duplex"
+};
+
+static const char *link_state[] = {
+ "",
+ "(active)"
+};
+
+void be_print_link_info(struct BE_LINK_STATUS *lnk_status)
+{
+ u16 si, di, ai;
+
+ /* Port 0 */
+ if (lnk_status->mac0_speed && lnk_status->mac0_duplex) {
+ /* Port is up and running */
+ si = (lnk_status->mac0_speed < 5) ? lnk_status->mac0_speed : 0;
+ di = (lnk_status->mac0_duplex < 3) ?
+ lnk_status->mac0_duplex : 0;
+ ai = (lnk_status->active_port == 0) ? 1 : 0;
+ printk(KERN_INFO "PortNo. 0: Speed - %s %s %s\n",
+ link_speed[si], link_duplex[di], link_state[ai]);
+ } else
+ printk(KERN_INFO "PortNo. 0: Down\n");
+
+ /* Port 1 */
+ if (lnk_status->mac1_speed && lnk_status->mac1_duplex) {
+ /* Port is up and running */
+ si = (lnk_status->mac1_speed < 5) ? lnk_status->mac1_speed : 0;
+ di = (lnk_status->mac1_duplex < 3) ?
+ lnk_status->mac1_duplex : 0;
+ ai = (lnk_status->active_port == 0) ? 1 : 0;
+ printk(KERN_INFO "PortNo. 1: Speed - %s %s %s\n",
+ link_speed[si], link_duplex[di], link_state[ai]);
+ } else
+ printk(KERN_INFO "PortNo. 1: Down\n");
+
+ return;
+}
+
+static int
+be_get_frag_header(struct skb_frag_struct *frag, void **mac_hdr,
+ void **ip_hdr, void **tcpudp_hdr,
+ u64 *hdr_flags, void *priv)
+{
+ struct ethhdr *eh;
+ struct vlan_ethhdr *veh;
+ struct iphdr *iph;
+ u8 *va = page_address(frag->page) + frag->page_offset;
+ unsigned long ll_hlen;
+
+ /* find the mac header, abort if not IPv4 */
+
+ prefetch(va);
+ eh = (struct ethhdr *)va;
+ *mac_hdr = eh;
+ ll_hlen = ETH_HLEN;
+ if (eh->h_proto != htons(ETH_P_IP)) {
+ if (eh->h_proto == htons(ETH_P_8021Q)) {
+ veh = (struct vlan_ethhdr *)va;
+ if (veh->h_vlan_encapsulated_proto != htons(ETH_P_IP))
+ return -1;
+
+ ll_hlen += VLAN_HLEN;
+
+ } else {
+ return -1;
+ }
+ }
+ *hdr_flags = LRO_IPV4;
+
+ iph = (struct iphdr *)(va + ll_hlen);
+ *ip_hdr = iph;
+ if (iph->protocol != IPPROTO_TCP)
+ return -1;
+ *hdr_flags |= LRO_TCP;
+ *tcpudp_hdr = (u8 *) (*ip_hdr) + (iph->ihl << 2);
+
+ return 0;
+}
+
+static int benet_open(struct net_device *netdev)
+{
+ struct be_net_object *pnob = netdev_priv(netdev);
+ struct be_adapter *adapter = pnob->adapter;
+ struct net_lro_mgr *lro_mgr;
+
+ if (adapter->dev_state < BE_DEV_STATE_INIT)
+ return -EAGAIN;
+
+ lro_mgr = &pnob->lro_mgr;
+ lro_mgr->dev = netdev;
+
+ lro_mgr->features = LRO_F_NAPI;
+ lro_mgr->ip_summed = CHECKSUM_UNNECESSARY;
+ lro_mgr->ip_summed_aggr = CHECKSUM_UNNECESSARY;
+ lro_mgr->max_desc = BE_MAX_LRO_DESCRIPTORS;
+ lro_mgr->lro_arr = pnob->lro_desc;
+ lro_mgr->get_frag_header = be_get_frag_header;
+ lro_mgr->max_aggr = adapter->max_rx_coal;
+ lro_mgr->frag_align_pad = 2;
+ if (lro_mgr->max_aggr > MAX_SKB_FRAGS)
+ lro_mgr->max_aggr = MAX_SKB_FRAGS;
+
+ adapter->max_rx_coal = BE_LRO_MAX_PKTS;
+
+ be_update_link_status(adapter);
+
+ /*
+ * Set carrier on only if Physical Link up
+ * Either of the port link status up signifies this
+ */
+ if ((adapter->port0_link_sts == BE_PORT_LINK_UP) ||
+ (adapter->port1_link_sts == BE_PORT_LINK_UP)) {
+ netif_start_queue(netdev);
+ netif_carrier_on(netdev);
+ }
+
+ adapter->dev_state = BE_DEV_STATE_OPEN;
+ napi_enable(&pnob->napi);
+ be_enable_intr(pnob);
+ be_enable_eq_intr(pnob);
+ /*
+ * RX completion queue may be in dis-armed state. Arm it.
+ */
+ be_notify_cmpl(pnob, 0, pnob->rx_cq_id, 1);
+
+ return 0;
+}
+
+static int benet_close(struct net_device *netdev)
+{
+ struct be_net_object *pnob = netdev_priv(netdev);
+ struct be_adapter *adapter = pnob->adapter;
+
+ netif_stop_queue(netdev);
+ synchronize_irq(netdev->irq);
+
+ be_wait_nic_tx_cmplx_cmpl(pnob);
+ adapter->dev_state = BE_DEV_STATE_INIT;
+ netif_carrier_off(netdev);
+
+ adapter->port0_link_sts = BE_PORT_LINK_DOWN;
+ adapter->port1_link_sts = BE_PORT_LINK_DOWN;
+ be_disable_intr(pnob);
+ be_disable_eq_intr(pnob);
+ napi_disable(&pnob->napi);
+
+ return 0;
+}
+
+/*
+ * Setting a Mac Address for BE
+ * Takes netdev and a void pointer as arguments.
+ * The pointer holds the new addres to be used.
+ */
+static int benet_set_mac_addr(struct net_device *netdev, void *p)
+{
+ struct sockaddr *addr = p;
+ struct be_net_object *pnob = netdev_priv(netdev);
+
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+ be_rxf_mac_address_read_write(&pnob->fn_obj, 0, 0, false, true, false,
+ netdev->dev_addr, NULL, NULL);
+ /*
+ * Since we are doing Active-Passive failover, both
+ * ports should have matching MAC addresses everytime.
+ */
+ be_rxf_mac_address_read_write(&pnob->fn_obj, 1, 0, false, true, false,
+ netdev->dev_addr, NULL, NULL);
+
+ return 0;
+}
+
+void be_get_stats_timer_handler(unsigned long context)
+{
+ struct be_timer_ctxt *ctxt = (struct be_timer_ctxt *)context;
+
+ if (atomic_read(&ctxt->get_stat_flag)) {
+ atomic_dec(&ctxt->get_stat_flag);
+ up((void *)ctxt->get_stat_sem_addr);
+ }
+ del_timer(&ctxt->get_stats_timer);
+ return;
+}
+
+void be_get_stat_cb(void *context, int status,
+ struct MCC_WRB_AMAP *optional_wrb)
+{
+ struct be_timer_ctxt *ctxt = (struct be_timer_ctxt *)context;
+ /*
+ * just up the semaphore if the get_stat_flag
+ * reads 1. so that the waiter can continue.
+ * If it is 0, then it was handled by the timer handler.
+ */
+ del_timer(&ctxt->get_stats_timer);
+ if (atomic_read(&ctxt->get_stat_flag)) {
+ atomic_dec(&ctxt->get_stat_flag);
+ up((void *)ctxt->get_stat_sem_addr);
+ }
+}
+
+struct net_device_stats *benet_get_stats(struct net_device *dev)
+{
+ struct be_net_object *pnob = netdev_priv(dev);
+ struct be_adapter *adapter = pnob->adapter;
+ u64 pa;
+ struct be_timer_ctxt *ctxt = &adapter->timer_ctxt;
+
+ if (adapter->dev_state != BE_DEV_STATE_OPEN) {
+ /* Return previously read stats */
+ return &(adapter->benet_stats);
+ }
+ /* Get Physical Addr */
+ pa = pci_map_single(adapter->pdev, adapter->eth_statsp,
+ sizeof(struct FWCMD_ETH_GET_STATISTICS),
+ PCI_DMA_FROMDEVICE);
+ ctxt->get_stat_sem_addr = (unsigned long)&adapter->get_eth_stat_sem;
+ atomic_inc(&ctxt->get_stat_flag);
+
+ be_rxf_query_eth_statistics(&pnob->fn_obj, adapter->eth_statsp,
+ cpu_to_le64(pa), be_get_stat_cb, ctxt,
+ NULL);
+
+ ctxt->get_stats_timer.data = (unsigned long)ctxt;
+ mod_timer(&ctxt->get_stats_timer, (jiffies + (HZ * 2)));
+ down((void *)ctxt->get_stat_sem_addr); /* callback will unblock us */
+
+ /* Adding port0 and port1 stats. */
+ adapter->benet_stats.rx_packets =
+ adapter->eth_statsp->params.response.p0recvdtotalframes +
+ adapter->eth_statsp->params.response.p1recvdtotalframes;
+ adapter->benet_stats.tx_packets =
+ adapter->eth_statsp->params.response.p0xmitunicastframes +
+ adapter->eth_statsp->params.response.p1xmitunicastframes;
+ adapter->benet_stats.tx_bytes =
+ adapter->eth_statsp->params.response.p0xmitbyteslsd +
+ adapter->eth_statsp->params.response.p1xmitbyteslsd;
+ adapter->benet_stats.rx_errors =
+ adapter->eth_statsp->params.response.p0crcerrors +
+ adapter->eth_statsp->params.response.p1crcerrors;
+ adapter->benet_stats.rx_errors +=
+ adapter->eth_statsp->params.response.p0alignmentsymerrs +
+ adapter->eth_statsp->params.response.p1alignmentsymerrs;
+ adapter->benet_stats.rx_errors +=
+ adapter->eth_statsp->params.response.p0inrangelenerrors +
+ adapter->eth_statsp->params.response.p1inrangelenerrors;
+ adapter->benet_stats.rx_bytes =
+ adapter->eth_statsp->params.response.p0recvdtotalbytesLSD +
+ adapter->eth_statsp->params.response.p1recvdtotalbytesLSD;
+ adapter->benet_stats.rx_crc_errors =
+ adapter->eth_statsp->params.response.p0crcerrors +
+ adapter->eth_statsp->params.response.p1crcerrors;
+
+ adapter->benet_stats.tx_packets +=
+ adapter->eth_statsp->params.response.p0xmitmulticastframes +
+ adapter->eth_statsp->params.response.p1xmitmulticastframes;
+ adapter->benet_stats.tx_packets +=
+ adapter->eth_statsp->params.response.p0xmitbroadcastframes +
+ adapter->eth_statsp->params.response.p1xmitbroadcastframes;
+ adapter->benet_stats.tx_errors = 0;
+
+ adapter->benet_stats.multicast =
+ adapter->eth_statsp->params.response.p0xmitmulticastframes +
+ adapter->eth_statsp->params.response.p1xmitmulticastframes;
+
+ adapter->benet_stats.rx_fifo_errors =
+ adapter->eth_statsp->params.response.p0rxfifooverflowdropped +
+ adapter->eth_statsp->params.response.p1rxfifooverflowdropped;
+ adapter->benet_stats.rx_frame_errors =
+ adapter->eth_statsp->params.response.p0alignmentsymerrs +
+ adapter->eth_statsp->params.response.p1alignmentsymerrs;
+ adapter->benet_stats.rx_length_errors =
+ adapter->eth_statsp->params.response.p0inrangelenerrors +
+ adapter->eth_statsp->params.response.p1inrangelenerrors;
+ adapter->benet_stats.rx_length_errors +=
+ adapter->eth_statsp->params.response.p0outrangeerrors +
+ adapter->eth_statsp->params.response.p1outrangeerrors;
+ adapter->benet_stats.rx_length_errors +=
+ adapter->eth_statsp->params.response.p0frametoolongerrors +
+ adapter->eth_statsp->params.response.p1frametoolongerrors;
+
+ pci_unmap_single(adapter->pdev, (ulong) adapter->eth_statsp,
+ sizeof(struct FWCMD_ETH_GET_STATISTICS),
+ PCI_DMA_FROMDEVICE);
+ return &(adapter->benet_stats);
+
+}
+
+static void be_start_tx(struct be_net_object *pnob, u32 nposted)
+{
+#define CSR_ETH_MAX_SQPOSTS 255
+ struct SQ_DB_AMAP sqdb;
+
+ sqdb.dw[0] = 0;
+
+ AMAP_SET_BITS_PTR(SQ_DB, cid, &sqdb, pnob->tx_q_id);
+ while (nposted) {
+ if (nposted > CSR_ETH_MAX_SQPOSTS) {
+ AMAP_SET_BITS_PTR(SQ_DB, numPosted, &sqdb,
+ CSR_ETH_MAX_SQPOSTS);
+ nposted -= CSR_ETH_MAX_SQPOSTS;
+ } else {
+ AMAP_SET_BITS_PTR(SQ_DB, numPosted, &sqdb, nposted);
+ nposted = 0;
+ }
+ PD_WRITE(&pnob->fn_obj, etx_sq_db, sqdb.dw[0]);
+ }
+
+ return;
+}
+
+static void update_tx_rate(struct be_adapter *adapter)
+{
+ /* update the rate once in two seconds */
+ if ((jiffies - adapter->eth_tx_jiffies) > 2 * (HZ)) {
+ u32 r;
+ r = adapter->eth_tx_bytes /
+ ((jiffies - adapter->eth_tx_jiffies) / (HZ));
+ r = (r / 1000000); /* M bytes/s */
+ adapter->be_stat.bes_eth_tx_rate = (r * 8); /* M bits/s */
+ adapter->eth_tx_jiffies = jiffies;
+ adapter->eth_tx_bytes = 0;
+ }
+}
+
+static int wrb_cnt_in_skb(struct sk_buff *skb)
+{
+ int cnt = 0;
+ while (skb) {
+ if (skb->len > skb->data_len)
+ cnt++;
+ cnt += skb_shinfo(skb)->nr_frags;
+ skb = skb_shinfo(skb)->frag_list;
+ }
+ BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
+ return cnt;
+}
+
+static void wrb_fill(struct ETH_WRB_AMAP *wrb, u64 addr, int len)
+{
+ AMAP_SET_BITS_PTR(ETH_WRB, frag_pa_hi, wrb, addr >> 32);
+ AMAP_SET_BITS_PTR(ETH_WRB, frag_pa_lo, wrb, addr & 0xFFFFFFFF);
+ AMAP_SET_BITS_PTR(ETH_WRB, frag_len, wrb, len);
+}
+
+static void wrb_fill_extra(struct ETH_WRB_AMAP *wrb, struct sk_buff *skb,
+ struct be_net_object *pnob)
+{
+ wrb->dw[2] = 0;
+ wrb->dw[3] = 0;
+ AMAP_SET_BITS_PTR(ETH_WRB, crc, wrb, 1);
+ if (skb_shinfo(skb)->gso_segs > 1 && skb_shinfo(skb)->gso_size) {
+ AMAP_SET_BITS_PTR(ETH_WRB, lso, wrb, 1);
+ AMAP_SET_BITS_PTR(ETH_WRB, lso_mss, wrb,
+ skb_shinfo(skb)->gso_size);
+ } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ u8 proto = ((struct iphdr *)ip_hdr(skb))->protocol;
+ if (proto == IPPROTO_TCP)
+ AMAP_SET_BITS_PTR(ETH_WRB, tcpcs, wrb, 1);
+ else if (proto == IPPROTO_UDP)
+ AMAP_SET_BITS_PTR(ETH_WRB, udpcs, wrb, 1);
+ }
+ if (pnob->vlan_grp && vlan_tx_tag_present(skb)) {
+ AMAP_SET_BITS_PTR(ETH_WRB, vlan, wrb, 1);
+ AMAP_SET_BITS_PTR(ETH_WRB, vlan_tag, wrb, vlan_tx_tag_get(skb));
+ }
+}
+
+static inline void wrb_copy_extra(struct ETH_WRB_AMAP *to,
+ struct ETH_WRB_AMAP *from)
+{
+
+ to->dw[2] = from->dw[2];
+ to->dw[3] = from->dw[3];
+}
+
+/* Returns the actual count of wrbs used including a possible dummy */
+static int copy_skb_to_txq(struct be_net_object *pnob, struct sk_buff *skb,
+ u32 wrb_cnt, u32 *copied)
+{
+ u64 busaddr;
+ struct ETH_WRB_AMAP *wrb = NULL, *first = NULL;
+ u32 i;
+ bool dummy = true;
+ struct pci_dev *pdev = pnob->adapter->pdev;
+
+ if (wrb_cnt & 1)
+ wrb_cnt++;
+ else
+ dummy = false;
+
+ atomic_add(wrb_cnt, &pnob->tx_q_used);
+
+ while (skb) {
+ if (skb->len > skb->data_len) {
+ int len = skb->len - skb->data_len;
+ busaddr = pci_map_single(pdev, skb->data, len,
+ PCI_DMA_TODEVICE);
+ busaddr = cpu_to_le64(busaddr);
+ wrb = &pnob->tx_q[pnob->tx_q_hd];
+ if (first == NULL) {
+ wrb_fill_extra(wrb, skb, pnob);
+ first = wrb;
+ } else {
+ wrb_copy_extra(wrb, first);
+ }
+ wrb_fill(wrb, busaddr, len);
+ be_adv_txq_hd(pnob);
+ *copied += len;
+ }
+
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ struct skb_frag_struct *frag =
+ &skb_shinfo(skb)->frags[i];
+ busaddr = pci_map_page(pdev, frag->page,
+ frag->page_offset, frag->size,
+ PCI_DMA_TODEVICE);
+ busaddr = cpu_to_le64(busaddr);
+ wrb = &pnob->tx_q[pnob->tx_q_hd];
+ if (first == NULL) {
+ wrb_fill_extra(wrb, skb, pnob);
+ first = wrb;
+ } else {
+ wrb_copy_extra(wrb, first);
+ }
+ wrb_fill(wrb, busaddr, frag->size);
+ be_adv_txq_hd(pnob);
+ *copied += frag->size;
+ }
+ skb = skb_shinfo(skb)->frag_list;
+ }
+
+ if (dummy) {
+ wrb = &pnob->tx_q[pnob->tx_q_hd];
+ BUG_ON(first == NULL);
+ wrb_copy_extra(wrb, first);
+ wrb_fill(wrb, 0, 0);
+ be_adv_txq_hd(pnob);
+ }
+ AMAP_SET_BITS_PTR(ETH_WRB, complete, wrb, 1);
+ AMAP_SET_BITS_PTR(ETH_WRB, last, wrb, 1);
+ return wrb_cnt;
+}
+
+/* For each skb transmitted, tx_ctxt stores the num of wrbs in the
+ * start index and skb pointer in the end index
+ */
+static inline void be_tx_wrb_info_remember(struct be_net_object *pnob,
+ struct sk_buff *skb, int wrb_cnt,
+ u32 start)
+{
+ *(u32 *) (&pnob->tx_ctxt[start]) = wrb_cnt;
+ index_adv(&start, wrb_cnt - 1, pnob->tx_q_len);
+ pnob->tx_ctxt[start] = skb;
+}
+
+static int benet_xmit(struct sk_buff *skb, struct net_device *netdev)
+{
+ struct be_net_object *pnob = netdev_priv(netdev);
+ struct be_adapter *adapter = pnob->adapter;
+ u32 wrb_cnt, copied = 0;
+ u32 start = pnob->tx_q_hd;
+
+ adapter->be_stat.bes_tx_reqs++;
+
+ wrb_cnt = wrb_cnt_in_skb(skb);
+ spin_lock_bh(&adapter->txq_lock);
+ if ((pnob->tx_q_len - 2 - atomic_read(&pnob->tx_q_used)) <= wrb_cnt) {
+ netif_stop_queue(pnob->netdev);
+ spin_unlock_bh(&adapter->txq_lock);
+ adapter->be_stat.bes_tx_fails++;
+ return NETDEV_TX_BUSY;
+ }
+ spin_unlock_bh(&adapter->txq_lock);
+
+ wrb_cnt = copy_skb_to_txq(pnob, skb, wrb_cnt, &copied);
+ be_tx_wrb_info_remember(pnob, skb, wrb_cnt, start);
+
+ be_start_tx(pnob, wrb_cnt);
+
+ adapter->eth_tx_bytes += copied;
+ adapter->be_stat.bes_tx_wrbs += wrb_cnt;
+ update_tx_rate(adapter);
+ netdev->trans_start = jiffies;
+
+ return NETDEV_TX_OK;
+}
+
+/*
+ * This is the driver entry point to change the mtu of the device
+ * Returns 0 for success and errno for failure.
+ */
+static int benet_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ /*
+ * BE supports jumbo frame size upto 9000 bytes including the link layer
+ * header. Considering the different variants of frame formats possible
+ * like VLAN, SNAP/LLC, the maximum possible value for MTU is 8974 bytes
+ */
+
+ if (new_mtu < (ETH_ZLEN + ETH_FCS_LEN) || (new_mtu > BE_MAX_MTU)) {
+ dev_info(&netdev->dev, "Invalid MTU requested. "
+ "Must be between %d and %d bytes\n",
+ (ETH_ZLEN + ETH_FCS_LEN), BE_MAX_MTU);
+ return -EINVAL;
+ }
+ dev_info(&netdev->dev, "MTU changed from %d to %d\n",
+ netdev->mtu, new_mtu);
+ netdev->mtu = new_mtu;
+ return 0;
+}
+
+/*
+ * This is the driver entry point to register a vlan with the device
+ */
+static void benet_vlan_register(struct net_device *netdev,
+ struct vlan_group *grp)
+{
+ struct be_net_object *pnob = netdev_priv(netdev);
+
+ be_disable_eq_intr(pnob);
+ pnob->vlan_grp = grp;
+ pnob->num_vlans = 0;
+ be_enable_eq_intr(pnob);
+}
+
+/*
+ * This is the driver entry point to add a vlan vlan_id
+ * with the device netdev
+ */
+static void benet_vlan_add_vid(struct net_device *netdev, u16 vlan_id)
+{
+ struct be_net_object *pnob = netdev_priv(netdev);
+
+ if (pnob->num_vlans == (BE_NUM_VLAN_SUPPORTED - 1)) {
+ /* no way to return an error */
+ dev_info(&netdev->dev,
+ "BladeEngine: Cannot configure more than %d Vlans\n",
+ BE_NUM_VLAN_SUPPORTED);
+ return;
+ }
+ /* The new vlan tag will be in the slot indicated by num_vlans. */
+ pnob->vlan_tag[pnob->num_vlans++] = vlan_id;
+ be_rxf_vlan_config(&pnob->fn_obj, false, pnob->num_vlans,
+ pnob->vlan_tag, NULL, NULL, NULL);
+}
+
+/*
+ * This is the driver entry point to remove a vlan vlan_id
+ * with the device netdev
+ */
+static void benet_vlan_rem_vid(struct net_device *netdev, u16 vlan_id)
+{
+ struct be_net_object *pnob = netdev_priv(netdev);
+
+ u32 i, value;
+
+ /*
+ * In Blade Engine, we support 32 vlan tag filters across both ports.
+ * To program a vlan tag, the RXF_RTPR_CSR register is used.
+ * Each 32-bit value of RXF_RTDR_CSR can address 2 vlan tag entries.
+ * The Vlan table is of depth 16. thus we support 32 tags.
+ */
+
+ value = vlan_id | VLAN_VALID_BIT;
+ for (i = 0; i < BE_NUM_VLAN_SUPPORTED; i++) {
+ if (pnob->vlan_tag[i] == vlan_id)
+ break;
+ }
+
+ if (i == BE_NUM_VLAN_SUPPORTED)
+ return;
+ /* Now compact the vlan tag array by removing hole created. */
+ while ((i + 1) < BE_NUM_VLAN_SUPPORTED) {
+ pnob->vlan_tag[i] = pnob->vlan_tag[i + 1];
+ i++;
+ }
+ if ((i + 1) == BE_NUM_VLAN_SUPPORTED)
+ pnob->vlan_tag[i] = (u16) 0x0;
+ pnob->num_vlans--;
+ be_rxf_vlan_config(&pnob->fn_obj, false, pnob->num_vlans,
+ pnob->vlan_tag, NULL, NULL, NULL);
+}
+
+/*
+ * This function is called to program multicast
+ * address in the multicast filter of the ASIC.
+ */
+static void be_set_multicast_filter(struct net_device *netdev)
+{
+ struct be_net_object *pnob = netdev_priv(netdev);
+ struct dev_mc_list *mc_ptr;
+ u8 mac_addr[32][ETH_ALEN];
+ int i;
+
+ if (netdev->flags & IFF_ALLMULTI) {
+ /* set BE in Multicast promiscuous */
+ be_rxf_multicast_config(&pnob->fn_obj, true, 0, NULL, NULL,
+ NULL, NULL);
+ return;
+ }
+
+ for (mc_ptr = netdev->mc_list, i = 0; mc_ptr;
+ mc_ptr = mc_ptr->next, i++) {
+ memcpy(&mac_addr[i][0], mc_ptr->dmi_addr, ETH_ALEN);
+ }
+
+ /* reset the promiscuous mode also. */
+ be_rxf_multicast_config(&pnob->fn_obj, false, i,
+ &mac_addr[0][0], NULL, NULL, NULL);
+}
+
+/*
+ * This is the driver entry point to set multicast list
+ * with the device netdev. This function will be used to
+ * set promiscuous mode or multicast promiscuous mode
+ * or multicast mode....
+ */
+static void benet_set_multicast_list(struct net_device *netdev)
+{
+ struct be_net_object *pnob = netdev_priv(netdev);
+
+ if (netdev->flags & IFF_PROMISC) {
+ be_rxf_promiscuous(&pnob->fn_obj, 1, 1, NULL, NULL, NULL);
+ } else {
+ be_rxf_promiscuous(&pnob->fn_obj, 0, 0, NULL, NULL, NULL);
+ be_set_multicast_filter(netdev);
+ }
+}
+
+int benet_init(struct net_device *netdev)
+{
+ struct be_net_object *pnob = netdev_priv(netdev);
+ struct be_adapter *adapter = pnob->adapter;
+
+ ether_setup(netdev);
+
+ netdev->open = &benet_open;
+ netdev->stop = &benet_close;
+ netdev->hard_start_xmit = &benet_xmit;
+
+ netdev->get_stats = &benet_get_stats;
+
+ netdev->set_multicast_list = &benet_set_multicast_list;
+
+ netdev->change_mtu = &benet_change_mtu;
+ netdev->set_mac_address = &benet_set_mac_addr;
+
+ netdev->vlan_rx_register = benet_vlan_register;
+ netdev->vlan_rx_add_vid = benet_vlan_add_vid;
+ netdev->vlan_rx_kill_vid = benet_vlan_rem_vid;
+
+ netdev->features =
+ NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
+ NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_IP_CSUM;
+
+ netdev->flags |= IFF_MULTICAST;
+
+ /* If device is DAC Capable, set the HIGHDMA flag for netdevice. */
+ if (adapter->dma_64bit_cap)
+ netdev->features |= NETIF_F_HIGHDMA;
+
+ SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
+ return 0;
+}