--- /dev/null
+/*
+ * Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/if_arp.h>
+#include <linux/if_vlan.h>
+#include <linux/ethtool.h>
+#include <linux/slab.h>
+#include <net/tcp.h>
+
+#include <net/inet_common.h>
+#include <linux/inet.h>
+
+#include "nes.h"
+
+static struct nic_qp_map nic_qp_mapping_0[] = {
+ {16,0,0,1},{24,4,0,0},{28,8,0,0},{32,12,0,0},
+ {20,2,2,1},{26,6,2,0},{30,10,2,0},{34,14,2,0},
+ {18,1,1,1},{25,5,1,0},{29,9,1,0},{33,13,1,0},
+ {22,3,3,1},{27,7,3,0},{31,11,3,0},{35,15,3,0}
+};
+
+static struct nic_qp_map nic_qp_mapping_1[] = {
+ {18,1,1,1},{25,5,1,0},{29,9,1,0},{33,13,1,0},
+ {22,3,3,1},{27,7,3,0},{31,11,3,0},{35,15,3,0}
+};
+
+static struct nic_qp_map nic_qp_mapping_2[] = {
+ {20,2,2,1},{26,6,2,0},{30,10,2,0},{34,14,2,0}
+};
+
+static struct nic_qp_map nic_qp_mapping_3[] = {
+ {22,3,3,1},{27,7,3,0},{31,11,3,0},{35,15,3,0}
+};
+
+static struct nic_qp_map nic_qp_mapping_4[] = {
+ {28,8,0,0},{32,12,0,0}
+};
+
+static struct nic_qp_map nic_qp_mapping_5[] = {
+ {29,9,1,0},{33,13,1,0}
+};
+
+static struct nic_qp_map nic_qp_mapping_6[] = {
+ {30,10,2,0},{34,14,2,0}
+};
+
+static struct nic_qp_map nic_qp_mapping_7[] = {
+ {31,11,3,0},{35,15,3,0}
+};
+
+static struct nic_qp_map *nic_qp_mapping_per_function[] = {
+ nic_qp_mapping_0, nic_qp_mapping_1, nic_qp_mapping_2, nic_qp_mapping_3,
+ nic_qp_mapping_4, nic_qp_mapping_5, nic_qp_mapping_6, nic_qp_mapping_7
+};
+
+static const u32 default_msg = NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
+ | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
+static int debug = -1;
+static int nics_per_function = 1;
+
+/**
+ * nes_netdev_poll
+ */
+static int nes_netdev_poll(struct napi_struct *napi, int budget)
+{
+ struct nes_vnic *nesvnic = container_of(napi, struct nes_vnic, napi);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ struct nes_hw_nic_cq *nescq = &nesvnic->nic_cq;
+
+ nesvnic->budget = budget;
+ nescq->cqes_pending = 0;
+ nescq->rx_cqes_completed = 0;
+ nescq->cqe_allocs_pending = 0;
+ nescq->rx_pkts_indicated = 0;
+
+ nes_nic_ce_handler(nesdev, nescq);
+
+ if (nescq->cqes_pending == 0) {
+ napi_complete(napi);
+ /* clear out completed cqes and arm */
+ nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
+ nescq->cq_number | (nescq->cqe_allocs_pending << 16));
+ nes_read32(nesdev->regs+NES_CQE_ALLOC);
+ } else {
+ /* clear out completed cqes but don't arm */
+ nes_write32(nesdev->regs+NES_CQE_ALLOC,
+ nescq->cq_number | (nescq->cqe_allocs_pending << 16));
+ nes_debug(NES_DBG_NETDEV, "%s: exiting with work pending\n",
+ nesvnic->netdev->name);
+ }
+ return nescq->rx_pkts_indicated;
+}
+
+
+/**
+ * nes_netdev_open - Activate the network interface; ifconfig
+ * ethx up.
+ */
+static int nes_netdev_open(struct net_device *netdev)
+{
+ u32 macaddr_low;
+ u16 macaddr_high;
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ int ret;
+ int i;
+ struct nes_vnic *first_nesvnic = NULL;
+ u32 nic_active_bit;
+ u32 nic_active;
+ struct list_head *list_pos, *list_temp;
+ unsigned long flags;
+
+ assert(nesdev != NULL);
+
+ if (nesvnic->netdev_open == 1)
+ return 0;
+
+ if (netif_msg_ifup(nesvnic))
+ printk(KERN_INFO PFX "%s: enabling interface\n", netdev->name);
+
+ ret = nes_init_nic_qp(nesdev, netdev);
+ if (ret) {
+ return ret;
+ }
+
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+
+ if ((!nesvnic->of_device_registered) && (nesvnic->rdma_enabled)) {
+ nesvnic->nesibdev = nes_init_ofa_device(netdev);
+ if (nesvnic->nesibdev == NULL) {
+ printk(KERN_ERR PFX "%s: nesvnic->nesibdev alloc failed", netdev->name);
+ } else {
+ nesvnic->nesibdev->nesvnic = nesvnic;
+ ret = nes_register_ofa_device(nesvnic->nesibdev);
+ if (ret) {
+ printk(KERN_ERR PFX "%s: Unable to register RDMA device, ret = %d\n",
+ netdev->name, ret);
+ }
+ }
+ }
+ /* Set packet filters */
+ nic_active_bit = 1 << nesvnic->nic_index;
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_ACTIVE);
+ nic_active |= nic_active_bit;
+ nes_write_indexed(nesdev, NES_IDX_NIC_ACTIVE, nic_active);
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE);
+ nic_active |= nic_active_bit;
+ nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE, nic_active);
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON);
+ nic_active |= nic_active_bit;
+ nes_write_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON, nic_active);
+
+ macaddr_high = ((u16)netdev->dev_addr[0]) << 8;
+ macaddr_high += (u16)netdev->dev_addr[1];
+
+ macaddr_low = ((u32)netdev->dev_addr[2]) << 24;
+ macaddr_low += ((u32)netdev->dev_addr[3]) << 16;
+ macaddr_low += ((u32)netdev->dev_addr[4]) << 8;
+ macaddr_low += (u32)netdev->dev_addr[5];
+
+ /* Program the various MAC regs */
+ for (i = 0; i < NES_MAX_PORT_COUNT; i++) {
+ if (nesvnic->qp_nic_index[i] == 0xf) {
+ break;
+ }
+ nes_debug(NES_DBG_NETDEV, "i=%d, perfect filter table index= %d, PERF FILTER LOW"
+ " (Addr:%08X) = %08X, HIGH = %08X.\n",
+ i, nesvnic->qp_nic_index[i],
+ NES_IDX_PERFECT_FILTER_LOW+
+ (nesvnic->qp_nic_index[i] * 8),
+ macaddr_low,
+ (u32)macaddr_high | NES_MAC_ADDR_VALID |
+ ((((u32)nesvnic->nic_index) << 16)));
+ nes_write_indexed(nesdev,
+ NES_IDX_PERFECT_FILTER_LOW + (nesvnic->qp_nic_index[i] * 8),
+ macaddr_low);
+ nes_write_indexed(nesdev,
+ NES_IDX_PERFECT_FILTER_HIGH + (nesvnic->qp_nic_index[i] * 8),
+ (u32)macaddr_high | NES_MAC_ADDR_VALID |
+ ((((u32)nesvnic->nic_index) << 16)));
+ }
+
+
+ nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
+ nesvnic->nic_cq.cq_number);
+ nes_read32(nesdev->regs+NES_CQE_ALLOC);
+ list_for_each_safe(list_pos, list_temp, &nesdev->nesadapter->nesvnic_list[nesdev->mac_index]) {
+ first_nesvnic = container_of(list_pos, struct nes_vnic, list);
+ if (first_nesvnic->netdev_open == 1)
+ break;
+ }
+ if (first_nesvnic->netdev_open == 0) {
+ nes_debug(NES_DBG_INIT, "Setting up MAC interrupt mask.\n");
+ nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK + (0x200 * nesdev->mac_index),
+ ~(NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT |
+ NES_MAC_INT_TX_UNDERFLOW | NES_MAC_INT_TX_ERROR));
+ first_nesvnic = nesvnic;
+ }
+
+ if (first_nesvnic->linkup) {
+ /* Enable network packets */
+ nesvnic->linkup = 1;
+ netif_start_queue(netdev);
+ netif_carrier_on(netdev);
+ }
+
+ spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
+ if (nesdev->nesadapter->phy_type[nesdev->mac_index] == NES_PHY_TYPE_SFP_D) {
+ nesdev->link_recheck = 1;
+ mod_delayed_work(system_wq, &nesdev->work,
+ NES_LINK_RECHECK_DELAY);
+ }
+ spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
+
+ spin_lock_irqsave(&nesvnic->port_ibevent_lock, flags);
+ if (nesvnic->of_device_registered) {
+ nesdev->nesadapter->send_term_ok = 1;
+ if (nesvnic->linkup == 1) {
+ if (nesdev->iw_status == 0) {
+ nesdev->iw_status = 1;
+ nes_port_ibevent(nesvnic);
+ }
+ } else {
+ nesdev->iw_status = 0;
+ }
+ }
+ spin_unlock_irqrestore(&nesvnic->port_ibevent_lock, flags);
+
+ napi_enable(&nesvnic->napi);
+ nesvnic->netdev_open = 1;
+
+ return 0;
+}
+
+
+/**
+ * nes_netdev_stop
+ */
+static int nes_netdev_stop(struct net_device *netdev)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ u32 nic_active_mask;
+ u32 nic_active;
+ struct nes_vnic *first_nesvnic = NULL;
+ struct list_head *list_pos, *list_temp;
+ unsigned long flags;
+
+ nes_debug(NES_DBG_SHUTDOWN, "nesvnic=%p, nesdev=%p, netdev=%p %s\n",
+ nesvnic, nesdev, netdev, netdev->name);
+ if (nesvnic->netdev_open == 0)
+ return 0;
+
+ if (netif_msg_ifdown(nesvnic))
+ printk(KERN_INFO PFX "%s: disabling interface\n", netdev->name);
+ netif_carrier_off(netdev);
+
+ /* Disable network packets */
+ napi_disable(&nesvnic->napi);
+ netif_stop_queue(netdev);
+ list_for_each_safe(list_pos, list_temp, &nesdev->nesadapter->nesvnic_list[nesdev->mac_index]) {
+ first_nesvnic = container_of(list_pos, struct nes_vnic, list);
+ if ((first_nesvnic->netdev_open == 1) && (first_nesvnic != nesvnic))
+ break;
+ }
+
+ if ((first_nesvnic->netdev_open == 1) && (first_nesvnic != nesvnic) &&
+ (PCI_FUNC(first_nesvnic->nesdev->pcidev->devfn) !=
+ PCI_FUNC(nesvnic->nesdev->pcidev->devfn))) {
+ nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK+
+ (0x200*nesdev->mac_index), 0xffffffff);
+ nes_write_indexed(first_nesvnic->nesdev,
+ NES_IDX_MAC_INT_MASK+
+ (0x200*first_nesvnic->nesdev->mac_index),
+ ~(NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT |
+ NES_MAC_INT_TX_UNDERFLOW | NES_MAC_INT_TX_ERROR));
+ } else {
+ nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK+(0x200*nesdev->mac_index), 0xffffffff);
+ }
+
+ nic_active_mask = ~((u32)(1 << nesvnic->nic_index));
+ nes_write_indexed(nesdev, NES_IDX_PERFECT_FILTER_HIGH+
+ (nesvnic->perfect_filter_index*8), 0);
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_ACTIVE);
+ nic_active &= nic_active_mask;
+ nes_write_indexed(nesdev, NES_IDX_NIC_ACTIVE, nic_active);
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL);
+ nic_active &= nic_active_mask;
+ nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active);
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE);
+ nic_active &= nic_active_mask;
+ nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ENABLE, nic_active);
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
+ nic_active &= nic_active_mask;
+ nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON);
+ nic_active &= nic_active_mask;
+ nes_write_indexed(nesdev, NES_IDX_NIC_BROADCAST_ON, nic_active);
+
+ spin_lock_irqsave(&nesvnic->port_ibevent_lock, flags);
+ if (nesvnic->of_device_registered) {
+ nesdev->nesadapter->send_term_ok = 0;
+ nesdev->iw_status = 0;
+ if (nesvnic->linkup == 1)
+ nes_port_ibevent(nesvnic);
+ }
+ del_timer_sync(&nesvnic->event_timer);
+ nesvnic->event_timer.function = NULL;
+ spin_unlock_irqrestore(&nesvnic->port_ibevent_lock, flags);
+
+ nes_destroy_nic_qp(nesvnic);
+
+ nesvnic->netdev_open = 0;
+
+ return 0;
+}
+
+
+/**
+ * nes_nic_send
+ */
+static int nes_nic_send(struct sk_buff *skb, struct net_device *netdev)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ struct nes_hw_nic *nesnic = &nesvnic->nic;
+ struct nes_hw_nic_sq_wqe *nic_sqe;
+ struct tcphdr *tcph;
+ __le16 *wqe_fragment_length;
+ u32 wqe_misc;
+ u16 wqe_fragment_index = 1; /* first fragment (0) is used by copy buffer */
+ u16 skb_fragment_index;
+ dma_addr_t bus_address;
+
+ nic_sqe = &nesnic->sq_vbase[nesnic->sq_head];
+ wqe_fragment_length = (__le16 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX];
+
+ /* setup the VLAN tag if present */
+ if (skb_vlan_tag_present(skb)) {
+ nes_debug(NES_DBG_NIC_TX, "%s: VLAN packet to send... VLAN = %08X\n",
+ netdev->name, skb_vlan_tag_get(skb));
+ wqe_misc = NES_NIC_SQ_WQE_TAGVALUE_ENABLE;
+ wqe_fragment_length[0] = (__force __le16) skb_vlan_tag_get(skb);
+ } else
+ wqe_misc = 0;
+
+ /* bump past the vlan tag */
+ wqe_fragment_length++;
+ /* wqe_fragment_address = (u64 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX]; */
+ wqe_misc |= NES_NIC_SQ_WQE_COMPLETION;
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ if (skb_is_gso(skb)) {
+ tcph = tcp_hdr(skb);
+ /* nes_debug(NES_DBG_NIC_TX, "%s: TSO request... is_gso = %u seg size = %u\n",
+ netdev->name, skb_is_gso(skb), skb_shinfo(skb)->gso_size); */
+ wqe_misc |= NES_NIC_SQ_WQE_LSO_ENABLE | (u16)skb_shinfo(skb)->gso_size;
+ set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_LSO_INFO_IDX,
+ ((u32)tcph->doff) |
+ (((u32)(((unsigned char *)tcph) - skb->data)) << 4));
+ }
+ } else { /* CHECKSUM_HW */
+ wqe_misc |= NES_NIC_SQ_WQE_DISABLE_CHKSUM;
+ }
+
+ set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_TOTAL_LENGTH_IDX,
+ skb->len);
+ memcpy(&nesnic->first_frag_vbase[nesnic->sq_head].buffer,
+ skb->data, min(((unsigned int)NES_FIRST_FRAG_SIZE), skb_headlen(skb)));
+ wqe_fragment_length[0] = cpu_to_le16(min(((unsigned int)NES_FIRST_FRAG_SIZE),
+ skb_headlen(skb)));
+ wqe_fragment_length[1] = 0;
+ if (skb_headlen(skb) > NES_FIRST_FRAG_SIZE) {
+ if ((skb_shinfo(skb)->nr_frags + 1) > 4) {
+ nes_debug(NES_DBG_NIC_TX, "%s: Packet with %u fragments not sent, skb_headlen=%u\n",
+ netdev->name, skb_shinfo(skb)->nr_frags + 2, skb_headlen(skb));
+ kfree_skb(skb);
+ nesvnic->tx_sw_dropped++;
+ return NETDEV_TX_LOCKED;
+ }
+ set_bit(nesnic->sq_head, nesnic->first_frag_overflow);
+ bus_address = pci_map_single(nesdev->pcidev, skb->data + NES_FIRST_FRAG_SIZE,
+ skb_headlen(skb) - NES_FIRST_FRAG_SIZE, PCI_DMA_TODEVICE);
+ wqe_fragment_length[wqe_fragment_index++] =
+ cpu_to_le16(skb_headlen(skb) - NES_FIRST_FRAG_SIZE);
+ wqe_fragment_length[wqe_fragment_index] = 0;
+ set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG1_LOW_IDX,
+ ((u64)(bus_address)));
+ nesnic->tx_skb[nesnic->sq_head] = skb;
+ }
+
+ if (skb_headlen(skb) == skb->len) {
+ if (skb_headlen(skb) <= NES_FIRST_FRAG_SIZE) {
+ nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_2_1_IDX] = 0;
+ nesnic->tx_skb[nesnic->sq_head] = skb;
+ }
+ } else {
+ /* Deal with Fragments */
+ nesnic->tx_skb[nesnic->sq_head] = skb;
+ for (skb_fragment_index = 0; skb_fragment_index < skb_shinfo(skb)->nr_frags;
+ skb_fragment_index++) {
+ skb_frag_t *frag =
+ &skb_shinfo(skb)->frags[skb_fragment_index];
+ bus_address = skb_frag_dma_map(&nesdev->pcidev->dev,
+ frag, 0, skb_frag_size(frag),
+ DMA_TO_DEVICE);
+ wqe_fragment_length[wqe_fragment_index] =
+ cpu_to_le16(skb_frag_size(&skb_shinfo(skb)->frags[skb_fragment_index]));
+ set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG0_LOW_IDX+(2*wqe_fragment_index),
+ bus_address);
+ wqe_fragment_index++;
+ if (wqe_fragment_index < 5)
+ wqe_fragment_length[wqe_fragment_index] = 0;
+ }
+ }
+
+ set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_MISC_IDX, wqe_misc);
+ nesnic->sq_head++;
+ nesnic->sq_head &= nesnic->sq_size - 1;
+
+ return NETDEV_TX_OK;
+}
+
+
+/**
+ * nes_netdev_start_xmit
+ */
+static int nes_netdev_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ struct nes_hw_nic *nesnic = &nesvnic->nic;
+ struct nes_hw_nic_sq_wqe *nic_sqe;
+ struct tcphdr *tcph;
+ /* struct udphdr *udph; */
+#define NES_MAX_TSO_FRAGS MAX_SKB_FRAGS
+ /* 64K segment plus overflow on each side */
+ dma_addr_t tso_bus_address[NES_MAX_TSO_FRAGS];
+ dma_addr_t bus_address;
+ u32 tso_frag_index;
+ u32 tso_frag_count;
+ u32 tso_wqe_length;
+ u32 curr_tcp_seq;
+ u32 wqe_count=1;
+ u32 send_rc;
+ struct iphdr *iph;
+ __le16 *wqe_fragment_length;
+ u32 nr_frags;
+ u32 original_first_length;
+ /* u64 *wqe_fragment_address; */
+ /* first fragment (0) is used by copy buffer */
+ u16 wqe_fragment_index=1;
+ u16 hoffset;
+ u16 nhoffset;
+ u16 wqes_needed;
+ u16 wqes_available;
+ u32 wqe_misc;
+
+ /*
+ * nes_debug(NES_DBG_NIC_TX, "%s Request to tx NIC packet length %u, headlen %u,"
+ * " (%u frags), tso_size=%u\n",
+ * netdev->name, skb->len, skb_headlen(skb),
+ * skb_shinfo(skb)->nr_frags, skb_is_gso(skb));
+ */
+
+ if (!netif_carrier_ok(netdev))
+ return NETDEV_TX_OK;
+
+ if (netif_queue_stopped(netdev))
+ return NETDEV_TX_BUSY;
+
+ /* Check if SQ is full */
+ if ((((nesnic->sq_tail+(nesnic->sq_size*2))-nesnic->sq_head) & (nesnic->sq_size - 1)) == 1) {
+ if (!netif_queue_stopped(netdev)) {
+ netif_stop_queue(netdev);
+ barrier();
+ if ((((((volatile u16)nesnic->sq_tail)+(nesnic->sq_size*2))-nesnic->sq_head) & (nesnic->sq_size - 1)) != 1) {
+ netif_start_queue(netdev);
+ goto sq_no_longer_full;
+ }
+ }
+ nesvnic->sq_full++;
+ return NETDEV_TX_BUSY;
+ }
+
+sq_no_longer_full:
+ nr_frags = skb_shinfo(skb)->nr_frags;
+ if (skb_headlen(skb) > NES_FIRST_FRAG_SIZE) {
+ nr_frags++;
+ }
+ /* Check if too many fragments */
+ if (unlikely((nr_frags > 4))) {
+ if (skb_is_gso(skb)) {
+ nesvnic->segmented_tso_requests++;
+ nesvnic->tso_requests++;
+ /* Basically 4 fragments available per WQE with extended fragments */
+ wqes_needed = nr_frags >> 2;
+ wqes_needed += (nr_frags&3)?1:0;
+ wqes_available = (((nesnic->sq_tail+nesnic->sq_size)-nesnic->sq_head) - 1) &
+ (nesnic->sq_size - 1);
+
+ if (unlikely(wqes_needed > wqes_available)) {
+ if (!netif_queue_stopped(netdev)) {
+ netif_stop_queue(netdev);
+ barrier();
+ wqes_available = (((((volatile u16)nesnic->sq_tail)+nesnic->sq_size)-nesnic->sq_head) - 1) &
+ (nesnic->sq_size - 1);
+ if (wqes_needed <= wqes_available) {
+ netif_start_queue(netdev);
+ goto tso_sq_no_longer_full;
+ }
+ }
+ nesvnic->sq_full++;
+ nes_debug(NES_DBG_NIC_TX, "%s: HNIC SQ full- TSO request has too many frags!\n",
+ netdev->name);
+ return NETDEV_TX_BUSY;
+ }
+tso_sq_no_longer_full:
+ /* Map all the buffers */
+ for (tso_frag_count=0; tso_frag_count < skb_shinfo(skb)->nr_frags;
+ tso_frag_count++) {
+ skb_frag_t *frag =
+ &skb_shinfo(skb)->frags[tso_frag_count];
+ tso_bus_address[tso_frag_count] =
+ skb_frag_dma_map(&nesdev->pcidev->dev,
+ frag, 0, skb_frag_size(frag),
+ DMA_TO_DEVICE);
+ }
+
+ tso_frag_index = 0;
+ curr_tcp_seq = ntohl(tcp_hdr(skb)->seq);
+ hoffset = skb_transport_header(skb) - skb->data;
+ nhoffset = skb_network_header(skb) - skb->data;
+ original_first_length = hoffset + ((((struct tcphdr *)skb_transport_header(skb))->doff)<<2);
+
+ for (wqe_count=0; wqe_count<((u32)wqes_needed); wqe_count++) {
+ tso_wqe_length = 0;
+ nic_sqe = &nesnic->sq_vbase[nesnic->sq_head];
+ wqe_fragment_length =
+ (__le16 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX];
+ /* setup the VLAN tag if present */
+ if (skb_vlan_tag_present(skb)) {
+ nes_debug(NES_DBG_NIC_TX, "%s: VLAN packet to send... VLAN = %08X\n",
+ netdev->name,
+ skb_vlan_tag_get(skb));
+ wqe_misc = NES_NIC_SQ_WQE_TAGVALUE_ENABLE;
+ wqe_fragment_length[0] = (__force __le16) skb_vlan_tag_get(skb);
+ } else
+ wqe_misc = 0;
+
+ /* bump past the vlan tag */
+ wqe_fragment_length++;
+
+ /* Assumes header totally fits in allocated buffer and is in first fragment */
+ if (original_first_length > NES_FIRST_FRAG_SIZE) {
+ nes_debug(NES_DBG_NIC_TX, "ERROR: SKB header too big, headlen=%u, FIRST_FRAG_SIZE=%u\n",
+ original_first_length, NES_FIRST_FRAG_SIZE);
+ nes_debug(NES_DBG_NIC_TX, "%s Request to tx NIC packet length %u, headlen %u,"
+ " (%u frags), is_gso = %u tso_size=%u\n",
+ netdev->name,
+ skb->len, skb_headlen(skb),
+ skb_shinfo(skb)->nr_frags, skb_is_gso(skb), skb_shinfo(skb)->gso_size);
+ }
+ memcpy(&nesnic->first_frag_vbase[nesnic->sq_head].buffer,
+ skb->data, min(((unsigned int)NES_FIRST_FRAG_SIZE),
+ original_first_length));
+ iph = (struct iphdr *)
+ (&nesnic->first_frag_vbase[nesnic->sq_head].buffer[nhoffset]);
+ tcph = (struct tcphdr *)
+ (&nesnic->first_frag_vbase[nesnic->sq_head].buffer[hoffset]);
+ if ((wqe_count+1)!=(u32)wqes_needed) {
+ tcph->fin = 0;
+ tcph->psh = 0;
+ tcph->rst = 0;
+ tcph->urg = 0;
+ }
+ if (wqe_count) {
+ tcph->syn = 0;
+ }
+ tcph->seq = htonl(curr_tcp_seq);
+ wqe_fragment_length[0] = cpu_to_le16(min(((unsigned int)NES_FIRST_FRAG_SIZE),
+ original_first_length));
+
+ wqe_fragment_index = 1;
+ if ((wqe_count==0) && (skb_headlen(skb) > original_first_length)) {
+ set_bit(nesnic->sq_head, nesnic->first_frag_overflow);
+ bus_address = pci_map_single(nesdev->pcidev, skb->data + original_first_length,
+ skb_headlen(skb) - original_first_length, PCI_DMA_TODEVICE);
+ wqe_fragment_length[wqe_fragment_index++] =
+ cpu_to_le16(skb_headlen(skb) - original_first_length);
+ wqe_fragment_length[wqe_fragment_index] = 0;
+ set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG1_LOW_IDX,
+ bus_address);
+ tso_wqe_length += skb_headlen(skb) -
+ original_first_length;
+ }
+ while (wqe_fragment_index < 5) {
+ wqe_fragment_length[wqe_fragment_index] =
+ cpu_to_le16(skb_frag_size(&skb_shinfo(skb)->frags[tso_frag_index]));
+ set_wqe_64bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_FRAG0_LOW_IDX+(2*wqe_fragment_index),
+ (u64)tso_bus_address[tso_frag_index]);
+ wqe_fragment_index++;
+ tso_wqe_length += skb_frag_size(&skb_shinfo(skb)->frags[tso_frag_index++]);
+ if (wqe_fragment_index < 5)
+ wqe_fragment_length[wqe_fragment_index] = 0;
+ if (tso_frag_index == tso_frag_count)
+ break;
+ }
+ if ((wqe_count+1) == (u32)wqes_needed) {
+ nesnic->tx_skb[nesnic->sq_head] = skb;
+ } else {
+ nesnic->tx_skb[nesnic->sq_head] = NULL;
+ }
+ wqe_misc |= NES_NIC_SQ_WQE_COMPLETION | (u16)skb_shinfo(skb)->gso_size;
+ if ((tso_wqe_length + original_first_length) > skb_shinfo(skb)->gso_size) {
+ wqe_misc |= NES_NIC_SQ_WQE_LSO_ENABLE;
+ } else {
+ iph->tot_len = htons(tso_wqe_length + original_first_length - nhoffset);
+ }
+
+ set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_MISC_IDX,
+ wqe_misc);
+ set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_LSO_INFO_IDX,
+ ((u32)tcph->doff) | (((u32)hoffset) << 4));
+
+ set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_TOTAL_LENGTH_IDX,
+ tso_wqe_length + original_first_length);
+ curr_tcp_seq += tso_wqe_length;
+ nesnic->sq_head++;
+ nesnic->sq_head &= nesnic->sq_size-1;
+ }
+ } else {
+ nesvnic->linearized_skbs++;
+ hoffset = skb_transport_header(skb) - skb->data;
+ nhoffset = skb_network_header(skb) - skb->data;
+ skb_linearize(skb);
+ skb_set_transport_header(skb, hoffset);
+ skb_set_network_header(skb, nhoffset);
+ send_rc = nes_nic_send(skb, netdev);
+ if (send_rc != NETDEV_TX_OK)
+ return NETDEV_TX_OK;
+ }
+ } else {
+ send_rc = nes_nic_send(skb, netdev);
+ if (send_rc != NETDEV_TX_OK)
+ return NETDEV_TX_OK;
+ }
+
+ barrier();
+
+ if (wqe_count)
+ nes_write32(nesdev->regs+NES_WQE_ALLOC,
+ (wqe_count << 24) | (1 << 23) | nesvnic->nic.qp_id);
+
+ netdev->trans_start = jiffies;
+
+ return NETDEV_TX_OK;
+}
+
+
+/**
+ * nes_netdev_get_stats
+ */
+static struct net_device_stats *nes_netdev_get_stats(struct net_device *netdev)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ u64 u64temp;
+ u32 u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_RX_DISCARD + (nesvnic->nic_index*0x200));
+ nesvnic->netstats.rx_dropped += u32temp;
+ nesvnic->endnode_nstat_rx_discard += u32temp;
+
+ u64temp = (u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_LO + (nesvnic->nic_index*0x200));
+ u64temp += ((u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_HI + (nesvnic->nic_index*0x200))) << 32;
+
+ nesvnic->endnode_nstat_rx_octets += u64temp;
+ nesvnic->netstats.rx_bytes += u64temp;
+
+ u64temp = (u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_LO + (nesvnic->nic_index*0x200));
+ u64temp += ((u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_HI + (nesvnic->nic_index*0x200))) << 32;
+
+ nesvnic->endnode_nstat_rx_frames += u64temp;
+ nesvnic->netstats.rx_packets += u64temp;
+
+ u64temp = (u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_LO + (nesvnic->nic_index*0x200));
+ u64temp += ((u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_HI + (nesvnic->nic_index*0x200))) << 32;
+
+ nesvnic->endnode_nstat_tx_octets += u64temp;
+ nesvnic->netstats.tx_bytes += u64temp;
+
+ u64temp = (u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_LO + (nesvnic->nic_index*0x200));
+ u64temp += ((u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_HI + (nesvnic->nic_index*0x200))) << 32;
+
+ nesvnic->endnode_nstat_tx_frames += u64temp;
+ nesvnic->netstats.tx_packets += u64temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_RX_SHORT_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->netstats.rx_dropped += u32temp;
+ nesvnic->nesdev->mac_rx_errors += u32temp;
+ nesvnic->nesdev->mac_rx_short_frames += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_RX_OVERSIZED_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->netstats.rx_dropped += u32temp;
+ nesvnic->nesdev->mac_rx_errors += u32temp;
+ nesvnic->nesdev->mac_rx_oversized_frames += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_RX_JABBER_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->netstats.rx_dropped += u32temp;
+ nesvnic->nesdev->mac_rx_errors += u32temp;
+ nesvnic->nesdev->mac_rx_jabber_frames += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_RX_SYMBOL_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->netstats.rx_dropped += u32temp;
+ nesvnic->nesdev->mac_rx_errors += u32temp;
+ nesvnic->nesdev->mac_rx_symbol_err_frames += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_RX_LENGTH_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->netstats.rx_length_errors += u32temp;
+ nesvnic->nesdev->mac_rx_errors += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_RX_CRC_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->nesdev->mac_rx_errors += u32temp;
+ nesvnic->nesdev->mac_rx_crc_errors += u32temp;
+ nesvnic->netstats.rx_crc_errors += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_TX_ERRORS + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->nesdev->mac_tx_errors += u32temp;
+ nesvnic->netstats.tx_errors += u32temp;
+
+ return &nesvnic->netstats;
+}
+
+
+/**
+ * nes_netdev_tx_timeout
+ */
+static void nes_netdev_tx_timeout(struct net_device *netdev)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+
+ if (netif_msg_timer(nesvnic))
+ nes_debug(NES_DBG_NIC_TX, "%s: tx timeout\n", netdev->name);
+}
+
+
+/**
+ * nes_netdev_set_mac_address
+ */
+static int nes_netdev_set_mac_address(struct net_device *netdev, void *p)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ struct sockaddr *mac_addr = p;
+ int i;
+ u32 macaddr_low;
+ u16 macaddr_high;
+
+ if (!is_valid_ether_addr(mac_addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(netdev->dev_addr, mac_addr->sa_data, netdev->addr_len);
+ printk(PFX "%s: Address length = %d, Address = %pM\n",
+ __func__, netdev->addr_len, mac_addr->sa_data);
+ macaddr_high = ((u16)netdev->dev_addr[0]) << 8;
+ macaddr_high += (u16)netdev->dev_addr[1];
+ macaddr_low = ((u32)netdev->dev_addr[2]) << 24;
+ macaddr_low += ((u32)netdev->dev_addr[3]) << 16;
+ macaddr_low += ((u32)netdev->dev_addr[4]) << 8;
+ macaddr_low += (u32)netdev->dev_addr[5];
+
+ for (i = 0; i < NES_MAX_PORT_COUNT; i++) {
+ if (nesvnic->qp_nic_index[i] == 0xf) {
+ break;
+ }
+ nes_write_indexed(nesdev,
+ NES_IDX_PERFECT_FILTER_LOW + (nesvnic->qp_nic_index[i] * 8),
+ macaddr_low);
+ nes_write_indexed(nesdev,
+ NES_IDX_PERFECT_FILTER_HIGH + (nesvnic->qp_nic_index[i] * 8),
+ (u32)macaddr_high | NES_MAC_ADDR_VALID |
+ ((((u32)nesvnic->nic_index) << 16)));
+ }
+ return 0;
+}
+
+
+static void set_allmulti(struct nes_device *nesdev, u32 nic_active_bit)
+{
+ u32 nic_active;
+
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL);
+ nic_active |= nic_active_bit;
+ nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active);
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
+ nic_active &= ~nic_active_bit;
+ nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
+}
+
+#define get_addr(addrs, index) ((addrs) + (index) * ETH_ALEN)
+
+/**
+ * nes_netdev_set_multicast_list
+ */
+static void nes_netdev_set_multicast_list(struct net_device *netdev)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ struct nes_adapter *nesadapter = nesvnic->nesdev->nesadapter;
+ u32 nic_active_bit;
+ u32 nic_active;
+ u32 perfect_filter_register_address;
+ u32 macaddr_low;
+ u16 macaddr_high;
+ u8 mc_all_on = 0;
+ u8 mc_index;
+ int mc_nic_index = -1;
+ u8 pft_entries_preallocated = max(nesadapter->adapter_fcn_count *
+ nics_per_function, 4);
+ u8 max_pft_entries_avaiable = NES_PFT_SIZE - pft_entries_preallocated;
+ unsigned long flags;
+ int mc_count = netdev_mc_count(netdev);
+
+ spin_lock_irqsave(&nesadapter->resource_lock, flags);
+ nic_active_bit = 1 << nesvnic->nic_index;
+
+ if (netdev->flags & IFF_PROMISC) {
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL);
+ nic_active |= nic_active_bit;
+ nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active);
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
+ nic_active |= nic_active_bit;
+ nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
+ mc_all_on = 1;
+ } else if ((netdev->flags & IFF_ALLMULTI) ||
+ (nesvnic->nic_index > 3)) {
+ set_allmulti(nesdev, nic_active_bit);
+ mc_all_on = 1;
+ } else {
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL);
+ nic_active &= ~nic_active_bit;
+ nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL, nic_active);
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
+ nic_active &= ~nic_active_bit;
+ nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
+ }
+
+ nes_debug(NES_DBG_NIC_RX, "Number of MC entries = %d, Promiscuous = %d, All Multicast = %d.\n",
+ mc_count, !!(netdev->flags & IFF_PROMISC),
+ !!(netdev->flags & IFF_ALLMULTI));
+ if (!mc_all_on) {
+ char *addrs;
+ int i;
+ struct netdev_hw_addr *ha;
+
+ addrs = kmalloc(ETH_ALEN * mc_count, GFP_ATOMIC);
+ if (!addrs) {
+ set_allmulti(nesdev, nic_active_bit);
+ goto unlock;
+ }
+ i = 0;
+ netdev_for_each_mc_addr(ha, netdev)
+ memcpy(get_addr(addrs, i++), ha->addr, ETH_ALEN);
+
+ perfect_filter_register_address = NES_IDX_PERFECT_FILTER_LOW +
+ pft_entries_preallocated * 0x8;
+ for (i = 0, mc_index = 0; mc_index < max_pft_entries_avaiable;
+ mc_index++) {
+ while (i < mc_count && nesvnic->mcrq_mcast_filter &&
+ ((mc_nic_index = nesvnic->mcrq_mcast_filter(nesvnic,
+ get_addr(addrs, i++))) == 0));
+ if (mc_nic_index < 0)
+ mc_nic_index = nesvnic->nic_index;
+ while (nesadapter->pft_mcast_map[mc_index] < 16 &&
+ nesadapter->pft_mcast_map[mc_index] !=
+ nesvnic->nic_index &&
+ mc_index < max_pft_entries_avaiable) {
+ nes_debug(NES_DBG_NIC_RX,
+ "mc_index=%d skipping nic_index=%d, "
+ "used for=%d \n", mc_index,
+ nesvnic->nic_index,
+ nesadapter->pft_mcast_map[mc_index]);
+ mc_index++;
+ }
+ if (mc_index >= max_pft_entries_avaiable)
+ break;
+ if (i < mc_count) {
+ char *addr = get_addr(addrs, i++);
+
+ nes_debug(NES_DBG_NIC_RX, "Assigning MC Address %pM to register 0x%04X nic_idx=%d\n",
+ addr,
+ perfect_filter_register_address+(mc_index * 8),
+ mc_nic_index);
+ macaddr_high = ((u8) addr[0]) << 8;
+ macaddr_high += (u8) addr[1];
+ macaddr_low = ((u8) addr[2]) << 24;
+ macaddr_low += ((u8) addr[3]) << 16;
+ macaddr_low += ((u8) addr[4]) << 8;
+ macaddr_low += (u8) addr[5];
+
+ nes_write_indexed(nesdev,
+ perfect_filter_register_address+(mc_index * 8),
+ macaddr_low);
+ nes_write_indexed(nesdev,
+ perfect_filter_register_address+4+(mc_index * 8),
+ (u32)macaddr_high | NES_MAC_ADDR_VALID |
+ ((((u32)(1<<mc_nic_index)) << 16)));
+ nesadapter->pft_mcast_map[mc_index] =
+ nesvnic->nic_index;
+ } else {
+ nes_debug(NES_DBG_NIC_RX, "Clearing MC Address at register 0x%04X\n",
+ perfect_filter_register_address+(mc_index * 8));
+ nes_write_indexed(nesdev,
+ perfect_filter_register_address+4+(mc_index * 8),
+ 0);
+ nesadapter->pft_mcast_map[mc_index] = 255;
+ }
+ }
+ kfree(addrs);
+ /* PFT is not large enough */
+ if (i < mc_count)
+ set_allmulti(nesdev, nic_active_bit);
+ }
+
+unlock:
+ spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
+}
+
+
+/**
+ * nes_netdev_change_mtu
+ */
+static int nes_netdev_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ int ret = 0;
+ u8 jumbomode = 0;
+ u32 nic_active;
+ u32 nic_active_bit;
+ u32 uc_all_active;
+ u32 mc_all_active;
+
+ if ((new_mtu < ETH_ZLEN) || (new_mtu > max_mtu))
+ return -EINVAL;
+
+ netdev->mtu = new_mtu;
+ nesvnic->max_frame_size = new_mtu + VLAN_ETH_HLEN;
+
+ if (netdev->mtu > 1500) {
+ jumbomode=1;
+ }
+ nes_nic_init_timer_defaults(nesdev, jumbomode);
+
+ if (netif_running(netdev)) {
+ nic_active_bit = 1 << nesvnic->nic_index;
+ mc_all_active = nes_read_indexed(nesdev,
+ NES_IDX_NIC_MULTICAST_ALL) & nic_active_bit;
+ uc_all_active = nes_read_indexed(nesdev,
+ NES_IDX_NIC_UNICAST_ALL) & nic_active_bit;
+
+ nes_netdev_stop(netdev);
+ nes_netdev_open(netdev);
+
+ nic_active = nes_read_indexed(nesdev,
+ NES_IDX_NIC_MULTICAST_ALL);
+ nic_active |= mc_all_active;
+ nes_write_indexed(nesdev, NES_IDX_NIC_MULTICAST_ALL,
+ nic_active);
+
+ nic_active = nes_read_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL);
+ nic_active |= uc_all_active;
+ nes_write_indexed(nesdev, NES_IDX_NIC_UNICAST_ALL, nic_active);
+ }
+
+ return ret;
+}
+
+
+static const char nes_ethtool_stringset[][ETH_GSTRING_LEN] = {
+ "Link Change Interrupts",
+ "Linearized SKBs",
+ "T/GSO Requests",
+ "Pause Frames Sent",
+ "Pause Frames Received",
+ "Internal Routing Errors",
+ "SQ SW Dropped SKBs",
+ "SQ Full",
+ "Segmented TSO Requests",
+ "Rx Symbol Errors",
+ "Rx Jabber Errors",
+ "Rx Oversized Frames",
+ "Rx Short Frames",
+ "Rx Length Errors",
+ "Rx CRC Errors",
+ "Rx Port Discard",
+ "Endnode Rx Discards",
+ "Endnode Rx Octets",
+ "Endnode Rx Frames",
+ "Endnode Tx Octets",
+ "Endnode Tx Frames",
+ "Tx Errors",
+ "mh detected",
+ "mh pauses",
+ "Retransmission Count",
+ "CM Connects",
+ "CM Accepts",
+ "Disconnects",
+ "Connected Events",
+ "Connect Requests",
+ "CM Rejects",
+ "ModifyQP Timeouts",
+ "CreateQPs",
+ "SW DestroyQPs",
+ "DestroyQPs",
+ "CM Closes",
+ "CM Packets Sent",
+ "CM Packets Bounced",
+ "CM Packets Created",
+ "CM Packets Rcvd",
+ "CM Packets Dropped",
+ "CM Packets Retrans",
+ "CM Listens Created",
+ "CM Listens Destroyed",
+ "CM Backlog Drops",
+ "CM Loopbacks",
+ "CM Nodes Created",
+ "CM Nodes Destroyed",
+ "CM Accel Drops",
+ "CM Resets Received",
+ "Free 4Kpbls",
+ "Free 256pbls",
+ "Timer Inits",
+ "LRO aggregated",
+ "LRO flushed",
+ "LRO no_desc",
+ "PAU CreateQPs",
+ "PAU DestroyQPs",
+};
+#define NES_ETHTOOL_STAT_COUNT ARRAY_SIZE(nes_ethtool_stringset)
+
+
+/**
+ * nes_netdev_get_sset_count
+ */
+static int nes_netdev_get_sset_count(struct net_device *netdev, int stringset)
+{
+ if (stringset == ETH_SS_STATS)
+ return NES_ETHTOOL_STAT_COUNT;
+ else
+ return -EINVAL;
+}
+
+
+/**
+ * nes_netdev_get_strings
+ */
+static void nes_netdev_get_strings(struct net_device *netdev, u32 stringset,
+ u8 *ethtool_strings)
+{
+ if (stringset == ETH_SS_STATS)
+ memcpy(ethtool_strings,
+ &nes_ethtool_stringset,
+ sizeof(nes_ethtool_stringset));
+}
+
+
+/**
+ * nes_netdev_get_ethtool_stats
+ */
+
+static void nes_netdev_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats *target_ethtool_stats, u64 *target_stat_values)
+{
+ u64 u64temp;
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ struct nes_adapter *nesadapter = nesdev->nesadapter;
+ u32 nic_count;
+ u32 u32temp;
+ u32 index = 0;
+
+ target_ethtool_stats->n_stats = NES_ETHTOOL_STAT_COUNT;
+ target_stat_values[index] = nesvnic->nesdev->link_status_interrupts;
+ target_stat_values[++index] = nesvnic->linearized_skbs;
+ target_stat_values[++index] = nesvnic->tso_requests;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_TX_PAUSE_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->nesdev->mac_pause_frames_sent += u32temp;
+ target_stat_values[++index] = nesvnic->nesdev->mac_pause_frames_sent;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_RX_PAUSE_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->nesdev->mac_pause_frames_received += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_PORT_RX_DISCARDS + (nesvnic->nesdev->mac_index*0x40));
+ nesvnic->nesdev->port_rx_discards += u32temp;
+ nesvnic->netstats.rx_dropped += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_PORT_TX_DISCARDS + (nesvnic->nesdev->mac_index*0x40));
+ nesvnic->nesdev->port_tx_discards += u32temp;
+ nesvnic->netstats.tx_dropped += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_RX_SHORT_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->netstats.rx_dropped += u32temp;
+ nesvnic->nesdev->mac_rx_errors += u32temp;
+ nesvnic->nesdev->mac_rx_short_frames += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_RX_OVERSIZED_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->netstats.rx_dropped += u32temp;
+ nesvnic->nesdev->mac_rx_errors += u32temp;
+ nesvnic->nesdev->mac_rx_oversized_frames += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_RX_JABBER_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->netstats.rx_dropped += u32temp;
+ nesvnic->nesdev->mac_rx_errors += u32temp;
+ nesvnic->nesdev->mac_rx_jabber_frames += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_RX_SYMBOL_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->netstats.rx_dropped += u32temp;
+ nesvnic->nesdev->mac_rx_errors += u32temp;
+ nesvnic->nesdev->mac_rx_symbol_err_frames += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_RX_LENGTH_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->netstats.rx_length_errors += u32temp;
+ nesvnic->nesdev->mac_rx_errors += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_RX_CRC_ERR_FRAMES + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->nesdev->mac_rx_errors += u32temp;
+ nesvnic->nesdev->mac_rx_crc_errors += u32temp;
+ nesvnic->netstats.rx_crc_errors += u32temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_TX_ERRORS + (nesvnic->nesdev->mac_index*0x200));
+ nesvnic->nesdev->mac_tx_errors += u32temp;
+ nesvnic->netstats.tx_errors += u32temp;
+
+ for (nic_count = 0; nic_count < NES_MAX_PORT_COUNT; nic_count++) {
+ if (nesvnic->qp_nic_index[nic_count] == 0xf)
+ break;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_RX_DISCARD +
+ (nesvnic->qp_nic_index[nic_count]*0x200));
+ nesvnic->netstats.rx_dropped += u32temp;
+ nesvnic->endnode_nstat_rx_discard += u32temp;
+
+ u64temp = (u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_LO +
+ (nesvnic->qp_nic_index[nic_count]*0x200));
+ u64temp += ((u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_RX_OCTETS_HI +
+ (nesvnic->qp_nic_index[nic_count]*0x200))) << 32;
+
+ nesvnic->endnode_nstat_rx_octets += u64temp;
+ nesvnic->netstats.rx_bytes += u64temp;
+
+ u64temp = (u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_LO +
+ (nesvnic->qp_nic_index[nic_count]*0x200));
+ u64temp += ((u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_RX_FRAMES_HI +
+ (nesvnic->qp_nic_index[nic_count]*0x200))) << 32;
+
+ nesvnic->endnode_nstat_rx_frames += u64temp;
+ nesvnic->netstats.rx_packets += u64temp;
+
+ u64temp = (u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_LO +
+ (nesvnic->qp_nic_index[nic_count]*0x200));
+ u64temp += ((u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_HI +
+ (nesvnic->qp_nic_index[nic_count]*0x200))) << 32;
+
+ nesvnic->endnode_nstat_tx_octets += u64temp;
+ nesvnic->netstats.tx_bytes += u64temp;
+
+ u64temp = (u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_LO +
+ (nesvnic->qp_nic_index[nic_count]*0x200));
+ u64temp += ((u64)nes_read_indexed(nesdev,
+ NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_HI +
+ (nesvnic->qp_nic_index[nic_count]*0x200))) << 32;
+
+ nesvnic->endnode_nstat_tx_frames += u64temp;
+ nesvnic->netstats.tx_packets += u64temp;
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_IPV4_TCP_REXMITS + (nesvnic->qp_nic_index[nic_count]*0x200));
+ nesvnic->endnode_ipv4_tcp_retransmits += u32temp;
+ }
+
+ target_stat_values[++index] = nesvnic->nesdev->mac_pause_frames_received;
+ target_stat_values[++index] = nesdev->nesadapter->nic_rx_eth_route_err;
+ target_stat_values[++index] = nesvnic->tx_sw_dropped;
+ target_stat_values[++index] = nesvnic->sq_full;
+ target_stat_values[++index] = nesvnic->segmented_tso_requests;
+ target_stat_values[++index] = nesvnic->nesdev->mac_rx_symbol_err_frames;
+ target_stat_values[++index] = nesvnic->nesdev->mac_rx_jabber_frames;
+ target_stat_values[++index] = nesvnic->nesdev->mac_rx_oversized_frames;
+ target_stat_values[++index] = nesvnic->nesdev->mac_rx_short_frames;
+ target_stat_values[++index] = nesvnic->netstats.rx_length_errors;
+ target_stat_values[++index] = nesvnic->nesdev->mac_rx_crc_errors;
+ target_stat_values[++index] = nesvnic->nesdev->port_rx_discards;
+ target_stat_values[++index] = nesvnic->endnode_nstat_rx_discard;
+ target_stat_values[++index] = nesvnic->endnode_nstat_rx_octets;
+ target_stat_values[++index] = nesvnic->endnode_nstat_rx_frames;
+ target_stat_values[++index] = nesvnic->endnode_nstat_tx_octets;
+ target_stat_values[++index] = nesvnic->endnode_nstat_tx_frames;
+ target_stat_values[++index] = nesvnic->nesdev->mac_tx_errors;
+ target_stat_values[++index] = mh_detected;
+ target_stat_values[++index] = mh_pauses_sent;
+ target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits;
+ target_stat_values[++index] = atomic_read(&cm_connects);
+ target_stat_values[++index] = atomic_read(&cm_accepts);
+ target_stat_values[++index] = atomic_read(&cm_disconnects);
+ target_stat_values[++index] = atomic_read(&cm_connecteds);
+ target_stat_values[++index] = atomic_read(&cm_connect_reqs);
+ target_stat_values[++index] = atomic_read(&cm_rejects);
+ target_stat_values[++index] = atomic_read(&mod_qp_timouts);
+ target_stat_values[++index] = atomic_read(&qps_created);
+ target_stat_values[++index] = atomic_read(&sw_qps_destroyed);
+ target_stat_values[++index] = atomic_read(&qps_destroyed);
+ target_stat_values[++index] = atomic_read(&cm_closes);
+ target_stat_values[++index] = cm_packets_sent;
+ target_stat_values[++index] = cm_packets_bounced;
+ target_stat_values[++index] = cm_packets_created;
+ target_stat_values[++index] = cm_packets_received;
+ target_stat_values[++index] = cm_packets_dropped;
+ target_stat_values[++index] = cm_packets_retrans;
+ target_stat_values[++index] = atomic_read(&cm_listens_created);
+ target_stat_values[++index] = atomic_read(&cm_listens_destroyed);
+ target_stat_values[++index] = cm_backlog_drops;
+ target_stat_values[++index] = atomic_read(&cm_loopbacks);
+ target_stat_values[++index] = atomic_read(&cm_nodes_created);
+ target_stat_values[++index] = atomic_read(&cm_nodes_destroyed);
+ target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts);
+ target_stat_values[++index] = atomic_read(&cm_resets_recvd);
+ target_stat_values[++index] = nesadapter->free_4kpbl;
+ target_stat_values[++index] = nesadapter->free_256pbl;
+ target_stat_values[++index] = int_mod_timer_init;
+ target_stat_values[++index] = nesvnic->lro_mgr.stats.aggregated;
+ target_stat_values[++index] = nesvnic->lro_mgr.stats.flushed;
+ target_stat_values[++index] = nesvnic->lro_mgr.stats.no_desc;
+ target_stat_values[++index] = atomic_read(&pau_qps_created);
+ target_stat_values[++index] = atomic_read(&pau_qps_destroyed);
+}
+
+/**
+ * nes_netdev_get_drvinfo
+ */
+static void nes_netdev_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_adapter *nesadapter = nesvnic->nesdev->nesadapter;
+
+ strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
+ strlcpy(drvinfo->bus_info, pci_name(nesvnic->nesdev->pcidev),
+ sizeof(drvinfo->bus_info));
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%u.%u", nesadapter->firmware_version >> 16,
+ nesadapter->firmware_version & 0x000000ff);
+ strlcpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version));
+ drvinfo->testinfo_len = 0;
+ drvinfo->eedump_len = 0;
+ drvinfo->regdump_len = 0;
+}
+
+
+/**
+ * nes_netdev_set_coalesce
+ */
+static int nes_netdev_set_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *et_coalesce)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ struct nes_adapter *nesadapter = nesdev->nesadapter;
+ struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
+ unsigned long flags;
+
+ spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
+ if (et_coalesce->rx_max_coalesced_frames_low) {
+ shared_timer->threshold_low = et_coalesce->rx_max_coalesced_frames_low;
+ }
+ if (et_coalesce->rx_max_coalesced_frames_irq) {
+ shared_timer->threshold_target = et_coalesce->rx_max_coalesced_frames_irq;
+ }
+ if (et_coalesce->rx_max_coalesced_frames_high) {
+ shared_timer->threshold_high = et_coalesce->rx_max_coalesced_frames_high;
+ }
+ if (et_coalesce->rx_coalesce_usecs_low) {
+ shared_timer->timer_in_use_min = et_coalesce->rx_coalesce_usecs_low;
+ }
+ if (et_coalesce->rx_coalesce_usecs_high) {
+ shared_timer->timer_in_use_max = et_coalesce->rx_coalesce_usecs_high;
+ }
+ spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
+
+ /* using this to drive total interrupt moderation */
+ nesadapter->et_rx_coalesce_usecs_irq = et_coalesce->rx_coalesce_usecs_irq;
+ if (et_coalesce->use_adaptive_rx_coalesce) {
+ nesadapter->et_use_adaptive_rx_coalesce = 1;
+ nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT_DYNAMIC;
+ nesadapter->et_rx_coalesce_usecs_irq = 0;
+ if (et_coalesce->pkt_rate_low) {
+ nesadapter->et_pkt_rate_low = et_coalesce->pkt_rate_low;
+ }
+ } else {
+ nesadapter->et_use_adaptive_rx_coalesce = 0;
+ nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT;
+ if (nesadapter->et_rx_coalesce_usecs_irq) {
+ nes_write32(nesdev->regs+NES_PERIODIC_CONTROL,
+ 0x80000000 | ((u32)(nesadapter->et_rx_coalesce_usecs_irq*8)));
+ }
+ }
+ return 0;
+}
+
+
+/**
+ * nes_netdev_get_coalesce
+ */
+static int nes_netdev_get_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *et_coalesce)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ struct nes_adapter *nesadapter = nesdev->nesadapter;
+ struct ethtool_coalesce temp_et_coalesce;
+ struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
+ unsigned long flags;
+
+ memset(&temp_et_coalesce, 0, sizeof(temp_et_coalesce));
+ temp_et_coalesce.rx_coalesce_usecs_irq = nesadapter->et_rx_coalesce_usecs_irq;
+ temp_et_coalesce.use_adaptive_rx_coalesce = nesadapter->et_use_adaptive_rx_coalesce;
+ temp_et_coalesce.rate_sample_interval = nesadapter->et_rate_sample_interval;
+ temp_et_coalesce.pkt_rate_low = nesadapter->et_pkt_rate_low;
+ spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
+ temp_et_coalesce.rx_max_coalesced_frames_low = shared_timer->threshold_low;
+ temp_et_coalesce.rx_max_coalesced_frames_irq = shared_timer->threshold_target;
+ temp_et_coalesce.rx_max_coalesced_frames_high = shared_timer->threshold_high;
+ temp_et_coalesce.rx_coalesce_usecs_low = shared_timer->timer_in_use_min;
+ temp_et_coalesce.rx_coalesce_usecs_high = shared_timer->timer_in_use_max;
+ if (nesadapter->et_use_adaptive_rx_coalesce) {
+ temp_et_coalesce.rx_coalesce_usecs_irq = shared_timer->timer_in_use;
+ }
+ spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
+ memcpy(et_coalesce, &temp_et_coalesce, sizeof(*et_coalesce));
+ return 0;
+}
+
+
+/**
+ * nes_netdev_get_pauseparam
+ */
+static void nes_netdev_get_pauseparam(struct net_device *netdev,
+ struct ethtool_pauseparam *et_pauseparam)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+
+ et_pauseparam->autoneg = 0;
+ et_pauseparam->rx_pause = (nesvnic->nesdev->disable_rx_flow_control == 0) ? 1:0;
+ et_pauseparam->tx_pause = (nesvnic->nesdev->disable_tx_flow_control == 0) ? 1:0;
+}
+
+
+/**
+ * nes_netdev_set_pauseparam
+ */
+static int nes_netdev_set_pauseparam(struct net_device *netdev,
+ struct ethtool_pauseparam *et_pauseparam)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ u32 u32temp;
+
+ if (et_pauseparam->autoneg) {
+ /* TODO: should return unsupported */
+ return 0;
+ }
+ if ((et_pauseparam->tx_pause == 1) && (nesdev->disable_tx_flow_control == 1)) {
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200));
+ u32temp |= NES_IDX_MAC_TX_CONFIG_ENABLE_PAUSE;
+ nes_write_indexed(nesdev,
+ NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200), u32temp);
+ nesdev->disable_tx_flow_control = 0;
+ } else if ((et_pauseparam->tx_pause == 0) && (nesdev->disable_tx_flow_control == 0)) {
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200));
+ u32temp &= ~NES_IDX_MAC_TX_CONFIG_ENABLE_PAUSE;
+ nes_write_indexed(nesdev,
+ NES_IDX_MAC_TX_CONFIG + (nesdev->mac_index*0x200), u32temp);
+ nesdev->disable_tx_flow_control = 1;
+ }
+ if ((et_pauseparam->rx_pause == 1) && (nesdev->disable_rx_flow_control == 1)) {
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40));
+ u32temp &= ~NES_IDX_MPP_DEBUG_PORT_DISABLE_PAUSE;
+ nes_write_indexed(nesdev,
+ NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40), u32temp);
+ nesdev->disable_rx_flow_control = 0;
+ } else if ((et_pauseparam->rx_pause == 0) && (nesdev->disable_rx_flow_control == 0)) {
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40));
+ u32temp |= NES_IDX_MPP_DEBUG_PORT_DISABLE_PAUSE;
+ nes_write_indexed(nesdev,
+ NES_IDX_MPP_DEBUG + (nesdev->mac_index*0x40), u32temp);
+ nesdev->disable_rx_flow_control = 1;
+ }
+
+ return 0;
+}
+
+
+/**
+ * nes_netdev_get_settings
+ */
+static int nes_netdev_get_settings(struct net_device *netdev, struct ethtool_cmd *et_cmd)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ struct nes_adapter *nesadapter = nesdev->nesadapter;
+ u32 mac_index = nesdev->mac_index;
+ u8 phy_type = nesadapter->phy_type[mac_index];
+ u8 phy_index = nesadapter->phy_index[mac_index];
+ u16 phy_data;
+
+ et_cmd->duplex = DUPLEX_FULL;
+ et_cmd->port = PORT_MII;
+ et_cmd->maxtxpkt = 511;
+ et_cmd->maxrxpkt = 511;
+
+ if (nesadapter->OneG_Mode) {
+ ethtool_cmd_speed_set(et_cmd, SPEED_1000);
+ if (phy_type == NES_PHY_TYPE_PUMA_1G) {
+ et_cmd->supported = SUPPORTED_1000baseT_Full;
+ et_cmd->advertising = ADVERTISED_1000baseT_Full;
+ et_cmd->autoneg = AUTONEG_DISABLE;
+ et_cmd->transceiver = XCVR_INTERNAL;
+ et_cmd->phy_address = mac_index;
+ } else {
+ unsigned long flags;
+ et_cmd->supported = SUPPORTED_1000baseT_Full
+ | SUPPORTED_Autoneg;
+ et_cmd->advertising = ADVERTISED_1000baseT_Full
+ | ADVERTISED_Autoneg;
+ spin_lock_irqsave(&nesadapter->phy_lock, flags);
+ nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
+ spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
+ if (phy_data & 0x1000)
+ et_cmd->autoneg = AUTONEG_ENABLE;
+ else
+ et_cmd->autoneg = AUTONEG_DISABLE;
+ et_cmd->transceiver = XCVR_EXTERNAL;
+ et_cmd->phy_address = phy_index;
+ }
+ return 0;
+ }
+ if ((phy_type == NES_PHY_TYPE_ARGUS) ||
+ (phy_type == NES_PHY_TYPE_SFP_D) ||
+ (phy_type == NES_PHY_TYPE_KR)) {
+ et_cmd->transceiver = XCVR_EXTERNAL;
+ et_cmd->port = PORT_FIBRE;
+ et_cmd->supported = SUPPORTED_FIBRE;
+ et_cmd->advertising = ADVERTISED_FIBRE;
+ et_cmd->phy_address = phy_index;
+ } else {
+ et_cmd->transceiver = XCVR_INTERNAL;
+ et_cmd->supported = SUPPORTED_10000baseT_Full;
+ et_cmd->advertising = ADVERTISED_10000baseT_Full;
+ et_cmd->phy_address = mac_index;
+ }
+ ethtool_cmd_speed_set(et_cmd, SPEED_10000);
+ et_cmd->autoneg = AUTONEG_DISABLE;
+ return 0;
+}
+
+
+/**
+ * nes_netdev_set_settings
+ */
+static int nes_netdev_set_settings(struct net_device *netdev, struct ethtool_cmd *et_cmd)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ struct nes_adapter *nesadapter = nesdev->nesadapter;
+
+ if ((nesadapter->OneG_Mode) &&
+ (nesadapter->phy_type[nesdev->mac_index] != NES_PHY_TYPE_PUMA_1G)) {
+ unsigned long flags;
+ u16 phy_data;
+ u8 phy_index = nesadapter->phy_index[nesdev->mac_index];
+
+ spin_lock_irqsave(&nesadapter->phy_lock, flags);
+ nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
+ if (et_cmd->autoneg) {
+ /* Turn on Full duplex, Autoneg, and restart autonegotiation */
+ phy_data |= 0x1300;
+ } else {
+ /* Turn off autoneg */
+ phy_data &= ~0x1000;
+ }
+ nes_write_1G_phy_reg(nesdev, 0, phy_index, phy_data);
+ spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
+ }
+
+ return 0;
+}
+
+
+static const struct ethtool_ops nes_ethtool_ops = {
+ .get_link = ethtool_op_get_link,
+ .get_settings = nes_netdev_get_settings,
+ .set_settings = nes_netdev_set_settings,
+ .get_strings = nes_netdev_get_strings,
+ .get_sset_count = nes_netdev_get_sset_count,
+ .get_ethtool_stats = nes_netdev_get_ethtool_stats,
+ .get_drvinfo = nes_netdev_get_drvinfo,
+ .get_coalesce = nes_netdev_get_coalesce,
+ .set_coalesce = nes_netdev_set_coalesce,
+ .get_pauseparam = nes_netdev_get_pauseparam,
+ .set_pauseparam = nes_netdev_set_pauseparam,
+};
+
+static void nes_vlan_mode(struct net_device *netdev, struct nes_device *nesdev, netdev_features_t features)
+{
+ struct nes_adapter *nesadapter = nesdev->nesadapter;
+ u32 u32temp;
+ unsigned long flags;
+
+ spin_lock_irqsave(&nesadapter->phy_lock, flags);
+
+ nes_debug(NES_DBG_NETDEV, "%s: %s\n", __func__, netdev->name);
+
+ /* Enable/Disable VLAN Stripping */
+ u32temp = nes_read_indexed(nesdev, NES_IDX_PCIX_DIAG);
+ if (features & NETIF_F_HW_VLAN_CTAG_RX)
+ u32temp &= 0xfdffffff;
+ else
+ u32temp |= 0x02000000;
+
+ nes_write_indexed(nesdev, NES_IDX_PCIX_DIAG, u32temp);
+ spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
+}
+
+static netdev_features_t nes_fix_features(struct net_device *netdev, netdev_features_t features)
+{
+ /*
+ * Since there is no support for separate rx/tx vlan accel
+ * enable/disable make sure tx flag is always in same state as rx.
+ */
+ if (features & NETIF_F_HW_VLAN_CTAG_RX)
+ features |= NETIF_F_HW_VLAN_CTAG_TX;
+ else
+ features &= ~NETIF_F_HW_VLAN_CTAG_TX;
+
+ return features;
+}
+
+static int nes_set_features(struct net_device *netdev, netdev_features_t features)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+ struct nes_device *nesdev = nesvnic->nesdev;
+ u32 changed = netdev->features ^ features;
+
+ if (changed & NETIF_F_HW_VLAN_CTAG_RX)
+ nes_vlan_mode(netdev, nesdev, features);
+
+ return 0;
+}
+
+static const struct net_device_ops nes_netdev_ops = {
+ .ndo_open = nes_netdev_open,
+ .ndo_stop = nes_netdev_stop,
+ .ndo_start_xmit = nes_netdev_start_xmit,
+ .ndo_get_stats = nes_netdev_get_stats,
+ .ndo_tx_timeout = nes_netdev_tx_timeout,
+ .ndo_set_mac_address = nes_netdev_set_mac_address,
+ .ndo_set_rx_mode = nes_netdev_set_multicast_list,
+ .ndo_change_mtu = nes_netdev_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_fix_features = nes_fix_features,
+ .ndo_set_features = nes_set_features,
+};
+
+/**
+ * nes_netdev_init - initialize network device
+ */
+struct net_device *nes_netdev_init(struct nes_device *nesdev,
+ void __iomem *mmio_addr)
+{
+ u64 u64temp;
+ struct nes_vnic *nesvnic;
+ struct net_device *netdev;
+ struct nic_qp_map *curr_qp_map;
+ u8 phy_type = nesdev->nesadapter->phy_type[nesdev->mac_index];
+
+ netdev = alloc_etherdev(sizeof(struct nes_vnic));
+ if (!netdev) {
+ printk(KERN_ERR PFX "nesvnic etherdev alloc failed");
+ return NULL;
+ }
+ nesvnic = netdev_priv(netdev);
+
+ nes_debug(NES_DBG_INIT, "netdev = %p, %s\n", netdev, netdev->name);
+
+ SET_NETDEV_DEV(netdev, &nesdev->pcidev->dev);
+
+ netdev->watchdog_timeo = NES_TX_TIMEOUT;
+ netdev->irq = nesdev->pcidev->irq;
+ netdev->mtu = ETH_DATA_LEN;
+ netdev->hard_header_len = ETH_HLEN;
+ netdev->addr_len = ETH_ALEN;
+ netdev->type = ARPHRD_ETHER;
+ netdev->netdev_ops = &nes_netdev_ops;
+ netdev->ethtool_ops = &nes_ethtool_ops;
+ netif_napi_add(netdev, &nesvnic->napi, nes_netdev_poll, 128);
+ nes_debug(NES_DBG_INIT, "Enabling VLAN Insert/Delete.\n");
+
+ /* Fill in the port structure */
+ nesvnic->netdev = netdev;
+ nesvnic->nesdev = nesdev;
+ nesvnic->msg_enable = netif_msg_init(debug, default_msg);
+ nesvnic->netdev_index = nesdev->netdev_count;
+ nesvnic->perfect_filter_index = nesdev->nesadapter->netdev_count;
+ nesvnic->max_frame_size = netdev->mtu + netdev->hard_header_len + VLAN_HLEN;
+
+ curr_qp_map = nic_qp_mapping_per_function[PCI_FUNC(nesdev->pcidev->devfn)];
+ nesvnic->nic.qp_id = curr_qp_map[nesdev->netdev_count].qpid;
+ nesvnic->nic_index = curr_qp_map[nesdev->netdev_count].nic_index;
+ nesvnic->logical_port = curr_qp_map[nesdev->netdev_count].logical_port;
+
+ /* Setup the burned in MAC address */
+ u64temp = (u64)nesdev->nesadapter->mac_addr_low;
+ u64temp += ((u64)nesdev->nesadapter->mac_addr_high) << 32;
+ u64temp += nesvnic->nic_index;
+ netdev->dev_addr[0] = (u8)(u64temp>>40);
+ netdev->dev_addr[1] = (u8)(u64temp>>32);
+ netdev->dev_addr[2] = (u8)(u64temp>>24);
+ netdev->dev_addr[3] = (u8)(u64temp>>16);
+ netdev->dev_addr[4] = (u8)(u64temp>>8);
+ netdev->dev_addr[5] = (u8)u64temp;
+
+ netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_RX;
+ if ((nesvnic->logical_port < 2) || (nesdev->nesadapter->hw_rev != NE020_REV))
+ netdev->hw_features |= NETIF_F_TSO;
+
+ netdev->features = netdev->hw_features | NETIF_F_HIGHDMA | NETIF_F_HW_VLAN_CTAG_TX;
+ netdev->hw_features |= NETIF_F_LRO;
+
+ nes_debug(NES_DBG_INIT, "nesvnic = %p, reported features = 0x%lX, QPid = %d,"
+ " nic_index = %d, logical_port = %d, mac_index = %d.\n",
+ nesvnic, (unsigned long)netdev->features, nesvnic->nic.qp_id,
+ nesvnic->nic_index, nesvnic->logical_port, nesdev->mac_index);
+
+ if (nesvnic->nesdev->nesadapter->port_count == 1 &&
+ nesvnic->nesdev->nesadapter->adapter_fcn_count == 1) {
+
+ nesvnic->qp_nic_index[0] = nesvnic->nic_index;
+ nesvnic->qp_nic_index[1] = nesvnic->nic_index + 1;
+ if (nes_drv_opt & NES_DRV_OPT_DUAL_LOGICAL_PORT) {
+ nesvnic->qp_nic_index[2] = 0xf;
+ nesvnic->qp_nic_index[3] = 0xf;
+ } else {
+ nesvnic->qp_nic_index[2] = nesvnic->nic_index + 2;
+ nesvnic->qp_nic_index[3] = nesvnic->nic_index + 3;
+ }
+ } else {
+ if (nesvnic->nesdev->nesadapter->port_count == 2 ||
+ (nesvnic->nesdev->nesadapter->port_count == 1 &&
+ nesvnic->nesdev->nesadapter->adapter_fcn_count == 2)) {
+ nesvnic->qp_nic_index[0] = nesvnic->nic_index;
+ nesvnic->qp_nic_index[1] = nesvnic->nic_index
+ + 2;
+ nesvnic->qp_nic_index[2] = 0xf;
+ nesvnic->qp_nic_index[3] = 0xf;
+ } else {
+ nesvnic->qp_nic_index[0] = nesvnic->nic_index;
+ nesvnic->qp_nic_index[1] = 0xf;
+ nesvnic->qp_nic_index[2] = 0xf;
+ nesvnic->qp_nic_index[3] = 0xf;
+ }
+ }
+ nesvnic->next_qp_nic_index = 0;
+
+ if (nesdev->netdev_count == 0) {
+ nesvnic->rdma_enabled = 1;
+ } else {
+ nesvnic->rdma_enabled = 0;
+ }
+ nesvnic->nic_cq.cq_number = nesvnic->nic.qp_id;
+ init_timer(&nesvnic->event_timer);
+ nesvnic->event_timer.function = NULL;
+ spin_lock_init(&nesvnic->tx_lock);
+ spin_lock_init(&nesvnic->port_ibevent_lock);
+ nesdev->netdev[nesdev->netdev_count] = netdev;
+
+ nes_debug(NES_DBG_INIT, "Adding nesvnic (%p) to the adapters nesvnic_list for MAC%d.\n",
+ nesvnic, nesdev->mac_index);
+ list_add_tail(&nesvnic->list, &nesdev->nesadapter->nesvnic_list[nesdev->mac_index]);
+
+ if ((nesdev->netdev_count == 0) &&
+ ((PCI_FUNC(nesdev->pcidev->devfn) == nesdev->mac_index) ||
+ ((phy_type == NES_PHY_TYPE_PUMA_1G) &&
+ (((PCI_FUNC(nesdev->pcidev->devfn) == 1) && (nesdev->mac_index == 2)) ||
+ ((PCI_FUNC(nesdev->pcidev->devfn) == 2) && (nesdev->mac_index == 1)))))) {
+ u32 u32temp;
+ u32 link_mask = 0;
+ u32 link_val = 0;
+ u16 temp_phy_data;
+ u16 phy_data = 0;
+ unsigned long flags;
+
+ u32temp = nes_read_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 +
+ (0x200 * (nesdev->mac_index & 1)));
+ if (phy_type != NES_PHY_TYPE_PUMA_1G) {
+ u32temp |= 0x00200000;
+ nes_write_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 +
+ (0x200 * (nesdev->mac_index & 1)), u32temp);
+ }
+
+ /* Check and set linkup here. This is for back to back */
+ /* configuration where second port won't get link interrupt */
+ switch (phy_type) {
+ case NES_PHY_TYPE_PUMA_1G:
+ if (nesdev->mac_index < 2) {
+ link_mask = 0x01010000;
+ link_val = 0x01010000;
+ } else {
+ link_mask = 0x02020000;
+ link_val = 0x02020000;
+ }
+ break;
+ case NES_PHY_TYPE_SFP_D:
+ spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
+ nes_read_10G_phy_reg(nesdev,
+ nesdev->nesadapter->phy_index[nesdev->mac_index],
+ 1, 0x9003);
+ temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
+ nes_read_10G_phy_reg(nesdev,
+ nesdev->nesadapter->phy_index[nesdev->mac_index],
+ 3, 0x0021);
+ nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
+ nes_read_10G_phy_reg(nesdev,
+ nesdev->nesadapter->phy_index[nesdev->mac_index],
+ 3, 0x0021);
+ phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
+ spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
+ phy_data = (!temp_phy_data && (phy_data == 0x8000)) ? 0x4 : 0x0;
+ break;
+ default:
+ link_mask = 0x0f1f0000;
+ link_val = 0x0f0f0000;
+ break;
+ }
+
+ u32temp = nes_read_indexed(nesdev,
+ NES_IDX_PHY_PCS_CONTROL_STATUS0 +
+ (0x200 * (nesdev->mac_index & 1)));
+
+ if (phy_type == NES_PHY_TYPE_SFP_D) {
+ if (phy_data & 0x0004)
+ nesvnic->linkup = 1;
+ } else {
+ if ((u32temp & link_mask) == link_val)
+ nesvnic->linkup = 1;
+ }
+
+ /* clear the MAC interrupt status, assumes direct logical to physical mapping */
+ u32temp = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (0x200 * nesdev->mac_index));
+ nes_debug(NES_DBG_INIT, "Phy interrupt status = 0x%X.\n", u32temp);
+ nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (0x200 * nesdev->mac_index), u32temp);
+
+ nes_init_phy(nesdev);
+ }
+
+ nes_vlan_mode(netdev, nesdev, netdev->features);
+
+ return netdev;
+}
+
+
+/**
+ * nes_netdev_destroy - destroy network device structure
+ */
+void nes_netdev_destroy(struct net_device *netdev)
+{
+ struct nes_vnic *nesvnic = netdev_priv(netdev);
+
+ /* make sure 'stop' method is called by Linux stack */
+ /* nes_netdev_stop(netdev); */
+
+ list_del(&nesvnic->list);
+
+ if (nesvnic->of_device_registered) {
+ nes_destroy_ofa_device(nesvnic->nesibdev);
+ }
+
+ free_netdev(netdev);
+}
+
+
+/**
+ * nes_nic_cm_xmit -- CM calls this to send out pkts
+ */
+int nes_nic_cm_xmit(struct sk_buff *skb, struct net_device *netdev)
+{
+ int ret;
+
+ skb->dev = netdev;
+ ret = dev_queue_xmit(skb);
+ if (ret) {
+ nes_debug(NES_DBG_CM, "Bad return code from dev_queue_xmit %d\n", ret);
+ }
+
+ return ret;
+}
Code Review / kvmfornfv.git / blobdiff