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Message-ID: <201002192152.o1JLqc8G031956@blc-10-1.brocade.com>
Date: Fri, 19 Feb 2010 13:52:38 -0800
From: Rasesh Mody <rmody@...cade.com>
To: <netdev@...r.kernel.org>
CC: <adapter_linux_open_src_team@...cade.com>
Subject: Subject: [PATCH 1/6] bna: Brocade 10Gb Ethernet device driver
From: Rasesh Mody <rmody@...cade.com>
This is patch 1/6 which contains linux driver source for
Brocade's BR1010/BR1020 10Gb CEE capable ethernet adapter.
Source is based against net-next-2.6.
We wish this patch to be considered for inclusion in net-next-2.6
Signed-off-by: Rasesh Mody <rmody@...cade.com>
---
bnad.c | 3481 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
bnad.h | 341 ++++++
2 files changed, 3822 insertions(+)
diff -ruP net-next-2.6.33-rc5-orig/drivers/net/bna/bnad.c net-next-2.6.33-rc5-mod/drivers/net/bna/bnad.c
--- net-next-2.6.33-rc5-orig/drivers/net/bna/bnad.c 1969-12-31 16:00:00.000000000 -0800
+++ net-next-2.6.33-rc5-mod/drivers/net/bna/bnad.c 2010-02-19 13:42:27.216260000 -0800
@@ -0,0 +1,3481 @@
+/*
+ * Linux network driver for Brocade Converged Network Adapter.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License (GPL) Version 2 as
+ * published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+/*
+ * Copyright (c) 2006-2009 Brocade Communications Systems, Inc.
+ * All rights reserved
+ * www.brocade.com
+ */
+
+/**
+ * bnad.c Brocade 10G PCIe Ethernet driver.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/pci.h>
+#include <linux/bitops.h>
+#include <linux/etherdevice.h>
+#include <linux/in.h>
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+#include <linux/delay.h>
+#include <linux/rtnetlink.h>
+#include <linux/if_ether.h>
+#include <linux/workqueue.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <linux/pm.h>
+#include <linux/random.h>
+
+#include <net/checksum.h>
+
+#include "bnad.h"
+#include "cna.h"
+#include "bna_iocll.h"
+#include "bna_intr.h"
+#include "bnad_defs.h"
+
+#define BNAD_TXQ_WI_NEEDED(_vectors) (((_vectors) + 3) >> 2)
+const static bool bnad_msix = 1;
+const static bool bnad_small_large_rxbufs = 1;
+static uint bnad_rxqsets_used;
+const static bool bnad_ipid_mode;
+const static bool bnad_vlan_strip = 1;
+const static uint bnad_txq_depth = BNAD_ENTRIES_PER_TXQ;
+const static uint bnad_rxq_depth = BNAD_ENTRIES_PER_RXQ;
+static uint bnad_log_level ;
+
+static uint bnad_ioc_auto_recover = 1;
+module_param(bnad_ioc_auto_recover, uint, 0444);
+MODULE_PARM_DESC(bnad_ioc_auto_recover, "Enable auto recovery");
+
+uint bnad_rxqs_per_cq = 2;
+
+const char *bnad_states[] = {
+ "START",
+ "INIT",
+ "INIT_DOWN",
+ "INIT_DISABLING",
+ "INIT_DISABLED",
+ "OPENING",
+ "OPEN",
+ "OPEN_DOWN",
+ "OPEN_DISABING",
+ "OPEN_DISABLED",
+ "CLOSING",
+ "UNLOADING"
+};
+
+DEFINE_MUTEX(bnad_fwimg_mutex);
+
+static void bnad_disable_msix(struct bnad *bnad);
+static void bnad_free_ibs(struct bnad *bnad);
+static void bnad_set_rx_mode(struct net_device *netdev);
+static void bnad_set_rx_mode_locked(struct net_device *netdev);
+static void bnad_reconfig_vlans(struct bnad *bnad);
+static void bnad_q_num_init(struct bnad *bnad, uint rxqsets);
+static int bnad_set_mac_address(struct net_device *netdev, void *addr);
+static int bnad_set_mac_address_locked(struct net_device *netdev, void *addr);
+static int bnad_disable_locked(struct bnad *bnad);
+static int bnad_change_mtu(struct net_device *netdev, int new_mtu);
+static void
+bnad_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp);
+static void bnad_vlan_rx_add_vid(struct net_device *netdev, unsigned short vid);
+static void
+bnad_vlan_rx_kill_vid(struct net_device *netdev, unsigned short vid);
+static void bnad_netpoll(struct net_device *netdev);
+
+static const struct net_device_ops bnad_netdev_ops = {
+ .ndo_open = bnad_open,
+ .ndo_stop = bnad_stop,
+ .ndo_start_xmit = bnad_start_xmit,
+ .ndo_get_stats = bnad_get_stats,
+ .ndo_set_rx_mode = &bnad_set_rx_mode,
+ .ndo_set_multicast_list = bnad_set_rx_mode,
+ .ndo_set_mac_address = bnad_set_mac_address,
+ .ndo_change_mtu = bnad_change_mtu,
+
+ .ndo_vlan_rx_register = bnad_vlan_rx_register,
+ .ndo_vlan_rx_add_vid = bnad_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = bnad_vlan_rx_kill_vid,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = bnad_netpoll,
+#endif
+};
+
+void bnad_ioc_timeout(unsigned long ioc_arg)
+{
+ struct bnad *bnad = (struct bnad *)(((struct bfa_ioc*)ioc_arg)->bfa);
+ spin_lock_irq(&bnad->priv_lock);
+ spin_unlock_irq(&bnad->priv_lock);
+}
+
+void bnad_ioc_sem_timeout(unsigned long ioc_arg)
+{
+ struct bnad *bnad = (struct bnad *)(((struct bfa_ioc*)ioc_arg)->bfa);
+ spin_lock_irq(&bnad->priv_lock);
+ bfa_ioc_sem_timeout(ioc_arg);
+ spin_unlock_irq(&bnad->priv_lock);
+}
+
+void bnad_ioc_hb_check(unsigned long ioc_arg)
+{
+ struct bnad *bnad = (struct bnad *)(((struct bfa_ioc*)ioc_arg)->bfa);
+ spin_lock_irq(&bnad->priv_lock);
+ bfa_ioc_hb_check(ioc_arg);
+ spin_unlock_irq(&bnad->priv_lock);
+}
+
+u32
+bnad_get_msglevel(struct net_device *netdev)
+{
+ return bnad_log_level;
+}
+
+void
+bnad_set_msglevel(struct net_device *netdev, u32 msglevel)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+ mutex_lock(&bnad->conf_mutex);
+ bnad_log_level = msglevel;
+ mutex_unlock(&bnad->conf_mutex);
+}
+
+static unsigned int bnad_free_txbufs(struct bnad_txq_info *txqinfo,
+ u16 updated_txq_cons)
+{
+ struct bnad *bnad = txqinfo->bnad;
+ unsigned int sent_packets = 0, sent_bytes = 0;
+ u16 wis, unmap_cons;
+ struct bnad_skb_unmap *unmap_array;
+ struct sk_buff *skb;
+ int i;
+
+ wis = BNAD_Q_INDEX_CHANGE(txqinfo->txq.q.consumer_index,
+ updated_txq_cons, txqinfo->txq.q.q_depth);
+ BUG_ON(!(wis <=
+ BNA_QE_IN_USE_CNT(&txqinfo->txq.q, txqinfo->txq.q.q_depth)));
+ unmap_array = txqinfo->skb_unmap_q.unmap_array;
+ unmap_cons = txqinfo->skb_unmap_q.consumer_index;
+ prefetch(&unmap_array[unmap_cons + 1]);
+ while (wis) {
+ skb = unmap_array[unmap_cons].skb;
+ unmap_array[unmap_cons].skb = NULL;
+ BUG_ON(!(wis >=
+ BNAD_TXQ_WI_NEEDED(1 + skb_shinfo(skb)->nr_frags)));
+ BUG_ON(!(((txqinfo->skb_unmap_q.producer_index -
+ unmap_cons)) & (txqinfo->skb_unmap_q.q_depth -
+ 1)) >=
+ 1 + skb_shinfo(skb)->nr_frags);
+
+ sent_packets++;
+ sent_bytes += skb->len;
+ wis -= BNAD_TXQ_WI_NEEDED(1 + skb_shinfo(skb)->nr_frags);
+
+ pci_unmap_single(bnad->pcidev,
+ pci_unmap_addr(&unmap_array[unmap_cons],
+ dma_addr), skb_headlen(skb),
+ PCI_DMA_TODEVICE);
+ pci_unmap_addr_set(&unmap_array[unmap_cons], dma_addr, 0);
+ BNA_QE_INDX_ADD(unmap_cons, 1, txqinfo->skb_unmap_q.q_depth);
+ prefetch(&unmap_array[unmap_cons + 1]);
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ pci_unmap_page(bnad->pcidev,
+ pci_unmap_addr(&unmap_array[unmap_cons],
+ dma_addr),
+ skb_shinfo(skb)->frags[i].size,
+ PCI_DMA_TODEVICE);
+ pci_unmap_addr_set(&unmap_array[unmap_cons], dma_addr,
+ 0);
+ BNA_QE_INDX_ADD(unmap_cons, 1,
+ txqinfo->skb_unmap_q.q_depth);
+ prefetch(&unmap_array[unmap_cons + 1]);
+ }
+ dev_kfree_skb_any(skb);
+ }
+
+ /* Update consumer pointers. */
+ txqinfo->txq.q.consumer_index = updated_txq_cons;
+ txqinfo->skb_unmap_q.consumer_index = unmap_cons;
+ txqinfo->tx_packets += sent_packets;
+ txqinfo->tx_bytes += sent_bytes;
+ return sent_packets;
+}
+
+static inline void bnad_disable_txrx_irqs(struct bnad *bnad)
+{
+ int i;
+
+ for (i = 0; i < bnad->txq_num; i++) {
+ bna_ib_coalescing_timer_set(bnad->priv, &bnad->txq_table[i].ib,
+ 0);
+ bna_ib_ack(bnad->priv, &bnad->txq_table[i].ib, 0);
+ }
+
+ for (i = 0; i < bnad->cq_num; i++) {
+ bna_ib_coalescing_timer_set(bnad->priv, &bnad->cq_table[i].ib,
+ 0);
+ bna_ib_ack(bnad->priv, &bnad->cq_table[i].ib, 0);
+ }
+}
+
+static inline void bnad_enable_txrx_irqs(struct bnad *bnad)
+{
+ int i;
+
+ spin_lock_irq(&bnad->priv_lock);
+ for (i = 0; i < bnad->txq_num; i++) {
+ bna_ib_coalescing_timer_set(bnad->priv, &bnad->txq_table[i].ib,
+ bnad->tx_coalescing_timeo);
+ bna_ib_ack(bnad->priv, &bnad->txq_table[i].ib, 0);
+ }
+
+ for (i = 0; i < bnad->cq_num; i++) {
+ bna_ib_coalescing_timer_set(bnad->priv, &bnad->cq_table[i].ib,
+ bnad->cq_table[i].
+ rx_coalescing_timeo);
+ bna_ib_ack(bnad->priv, &bnad->cq_table[i].ib, 0);
+ }
+ spin_unlock_irq(&bnad->priv_lock);
+}
+
+static inline void bnad_disable_rx_irq(struct bnad *bnad,
+ struct bnad_cq_info *cqinfo)
+{
+ bna_ib_coalescing_timer_set(bnad->priv, &cqinfo->ib, 0);
+ bna_ib_ack(bnad->priv, &cqinfo->ib, 0);
+}
+static inline void bnad_enable_rx_irq(struct bnad *bnad,
+ struct bnad_cq_info *cqinfo)
+{
+ spin_lock_irq(&bnad->priv_lock);
+
+ bna_ib_coalescing_timer_set(bnad->priv, &cqinfo->ib,
+ cqinfo->rx_coalescing_timeo);
+
+ bna_ib_ack(bnad->priv, &cqinfo->ib, 0);
+
+ spin_unlock_irq(&bnad->priv_lock);
+}
+
+static unsigned int bnad_tx(struct bnad *bnad, struct bnad_txq_info *txqinfo)
+{
+ struct net_device *netdev = bnad->netdev;
+ unsigned int sent;
+
+ if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &txqinfo->flags))
+ return 0;
+
+ sent = bnad_free_txbufs(txqinfo,
+ (u16) (*txqinfo->hw_consumer_index));
+ if (sent) {
+ if (netif_queue_stopped(netdev) &&
+ BNA_Q_FREE_COUNT(&txqinfo->txq) >=
+ BNAD_NETIF_WAKE_THRESHOLD) {
+ netif_wake_queue(netdev);
+ bnad->stats.netif_queue_wakeup++;
+ }
+ bna_ib_ack(bnad->priv, &txqinfo->ib, sent);
+ } else {
+ bna_ib_ack(bnad->priv, &txqinfo->ib, 0);
+ }
+
+ smp_mb__before_clear_bit();
+ clear_bit(BNAD_TXQ_FREE_SENT, &txqinfo->flags);
+
+ return sent;
+}
+
+static irqreturn_t bnad_msix_tx(int irq, void *data)
+{
+ struct bnad_txq_info *txqinfo = (struct bnad_txq_info *)data;
+ struct bnad *bnad = txqinfo->bnad;
+
+ bnad_tx(bnad, txqinfo);
+
+ return IRQ_HANDLED;
+}
+
+static void bnad_alloc_rxbufs(struct bnad_rxq_info *rxqinfo)
+{
+ u16 to_alloc, alloced, unmap_prod, wi_range;
+ struct bnad_skb_unmap *unmap_array;
+ struct bna_rxq_entry *rxent;
+ struct sk_buff *skb;
+ dma_addr_t dma_addr;
+
+ alloced = 0;
+ to_alloc =
+ BNA_QE_FREE_CNT(&rxqinfo->skb_unmap_q,
+ rxqinfo->skb_unmap_q.q_depth);
+
+ unmap_array = rxqinfo->skb_unmap_q.unmap_array;
+ unmap_prod = rxqinfo->skb_unmap_q.producer_index;
+ BNA_RXQ_QPGE_PTR_GET(unmap_prod, &rxqinfo->rxq.q, rxent, wi_range);
+ BUG_ON(!(wi_range && wi_range <= rxqinfo->rxq.q.q_depth));
+
+ while (to_alloc--) {
+ if (!wi_range) {
+ BNA_RXQ_QPGE_PTR_GET(unmap_prod, &rxqinfo->rxq.q, rxent,
+ wi_range);
+ BUG_ON(!(wi_range &&
+ wi_range <= rxqinfo->rxq.q.q_depth));
+ }
+ skb = alloc_skb(rxqinfo->rxq_config.buffer_size + NET_IP_ALIGN,
+ GFP_ATOMIC);
+ if (unlikely(!skb)) {
+ rxqinfo->rxbuf_alloc_failed++;
+ goto finishing;
+ }
+ skb->dev = rxqinfo->bnad->netdev;
+ skb_reserve(skb, NET_IP_ALIGN);
+ unmap_array[unmap_prod].skb = skb;
+ dma_addr =
+ pci_map_single(rxqinfo->bnad->pcidev, skb->data,
+ rxqinfo->rxq_config.buffer_size,
+ PCI_DMA_FROMDEVICE);
+ pci_unmap_addr_set(&unmap_array[unmap_prod], dma_addr,
+ dma_addr);
+ BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr);
+ BNA_QE_INDX_ADD(unmap_prod, 1, rxqinfo->skb_unmap_q.q_depth);
+
+ rxent++;
+ wi_range--;
+ alloced++;
+ }
+
+finishing:
+ if (likely(alloced)) {
+ rxqinfo->skb_unmap_q.producer_index = unmap_prod;
+ rxqinfo->rxq.q.producer_index = unmap_prod;
+ smp_mb();
+ bna_rxq_prod_indx_doorbell(&rxqinfo->rxq);
+ }
+}
+
+static inline void bnad_refill_rxq(struct bnad_rxq_info *rxqinfo)
+{
+ if (!test_and_set_bit(BNAD_RXQ_REFILL, &rxqinfo->flags)) {
+ if (BNA_QE_FREE_CNT
+ (&rxqinfo->skb_unmap_q,
+ rxqinfo->skb_unmap_q.
+ q_depth) >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT)
+ bnad_alloc_rxbufs(rxqinfo);
+ smp_mb__before_clear_bit();
+ clear_bit(BNAD_RXQ_REFILL, &rxqinfo->flags);
+ }
+}
+
+static unsigned int bnad_poll_cq(struct bnad *bnad,
+ struct bnad_cq_info *cqinfo, int budget)
+{
+ struct bna_cq_entry *cmpl, *next_cmpl;
+ unsigned int wi_range, packets = 0, wis = 0;
+ struct bnad_rxq_info *rxqinfo = NULL;
+ struct bnad_unmap_q *unmap_q;
+ struct sk_buff *skb;
+ u32 flags;
+ struct bna_pkt_rate *pkt_rt = &cqinfo->pkt_rate;
+
+ prefetch(bnad->netdev);
+ cmpl = bna_cq_pg_prod_ptr(&cqinfo->cq, &wi_range);
+ BUG_ON(!(wi_range && wi_range <= cqinfo->cq.q.q_depth));
+ while (cmpl->valid && packets < budget) {
+ packets++;
+ BNA_UPDATE_PKT_CNT(pkt_rt, ntohs(cmpl->length));
+
+ rxqinfo = &bnad->rxq_table[cmpl->rxq_id];
+ unmap_q = &rxqinfo->skb_unmap_q;
+
+ skb = unmap_q->unmap_array[unmap_q->consumer_index].skb;
+ prefetch(skb->data - NET_IP_ALIGN);
+ unmap_q->unmap_array[unmap_q->consumer_index].skb = NULL;
+ pci_unmap_single(bnad->pcidev,
+ pci_unmap_addr(&unmap_q->
+ unmap_array[unmap_q->
+ consumer_index],
+ dma_addr),
+ rxqinfo->rxq_config.buffer_size,
+ PCI_DMA_FROMDEVICE);
+ BNA_QE_INDX_ADD(unmap_q->consumer_index, 1, unmap_q->q_depth);
+ BNA_Q_CI_ADD(&rxqinfo->rxq, 1);
+
+ wis++;
+ if (likely(--wi_range))
+ next_cmpl = cmpl + 1;
+ else {
+ BNA_Q_PI_ADD(&cqinfo->cq, wis);
+ wis = 0;
+ next_cmpl = bna_cq_pg_prod_ptr(&cqinfo->cq, &wi_range);
+ BUG_ON(!(wi_range &&
+ wi_range <= cqinfo->cq.q.q_depth));
+ }
+ prefetch(next_cmpl);
+
+ flags = ntohl(cmpl->flags);
+ if (unlikely
+ (flags &
+ (BNA_CQ_EF_MAC_ERROR | BNA_CQ_EF_FCS_ERROR |
+ BNA_CQ_EF_TOO_LONG))) {
+ dev_kfree_skb(skb);
+ rxqinfo->rx_packets_with_error++;
+ goto next;
+ }
+
+ skb_put(skb, ntohs(cmpl->length));
+ if (likely
+ (bnad->rx_csum &&
+ (((flags & BNA_CQ_EF_IPV4) &&
+ (flags & BNA_CQ_EF_L3_CKSUM_OK)) ||
+ (flags & BNA_CQ_EF_IPV6)) &&
+ (flags & (BNA_CQ_EF_TCP | BNA_CQ_EF_UDP)) &&
+ (flags & BNA_CQ_EF_L4_CKSUM_OK)))
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ else
+ skb->ip_summed = CHECKSUM_NONE;
+
+ rxqinfo->rx_packets++;
+ rxqinfo->rx_bytes += skb->len;
+ skb->protocol = eth_type_trans(skb, bnad->netdev);
+
+ if (bnad->vlangrp && (flags & BNA_CQ_EF_VLAN) &&
+ bnad_vlan_strip) {
+ vlan_hwaccel_receive_skb(skb, bnad->vlangrp,
+ ntohs(cmpl->vlan_tag));
+ } else
+ netif_receive_skb(skb);
+next:
+ cmpl->valid = 0;
+ cmpl = next_cmpl;
+ }
+
+ BNA_Q_PI_ADD(&cqinfo->cq, wis);
+
+ if (likely(rxqinfo)) {
+ bna_ib_ack(bnad->priv, &cqinfo->ib, packets);
+ /* Check the current queue first. */
+ bnad_refill_rxq(rxqinfo);
+
+ if (likely(bnad_small_large_rxbufs)) {
+ /* There are 2 RxQs - small and large buffer queues */
+ unsigned int rxq_id = (rxqinfo->rxq_id ^ 1);
+ bnad_refill_rxq(&bnad->rxq_table[rxq_id]);
+ }
+ } else {
+ bna_ib_ack(bnad->priv, &cqinfo->ib, 0);
+ }
+
+ return packets;
+}
+
+static irqreturn_t bnad_msix_rx(int irq, void *data)
+{
+ struct bnad_cq_info *cqinfo = (struct bnad_cq_info *)data;
+ struct bnad *bnad = cqinfo->bnad;
+
+ if (likely(napi_schedule_prep(&cqinfo->napi))) {
+ bnad_disable_rx_irq(bnad, cqinfo);
+ __napi_schedule(&cqinfo->napi);
+ }
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t bnad_msix_err_mbox(int irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct bnad *bnad = netdev_priv(netdev);
+ u32 intr_status;
+
+ spin_lock(&bnad->priv_lock);
+
+ bna_intr_status_get(bnad->priv, &intr_status);
+ if (BNA_IS_MBOX_ERR_INTR(intr_status))
+ bna_mbox_err_handler(bnad->priv, intr_status);
+
+ spin_unlock(&bnad->priv_lock);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t bnad_isr(int irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct bnad *bnad = netdev_priv(netdev);
+ u32 intr_status;
+
+ spin_lock(&bnad->priv_lock);
+ bna_intr_status_get(bnad->priv, &intr_status);
+
+ if (!intr_status) {
+ spin_unlock(&bnad->priv_lock);
+ return IRQ_NONE;
+ }
+
+ if (BNA_IS_MBOX_ERR_INTR(intr_status)) {
+ bna_mbox_err_handler(bnad->priv, intr_status);
+ spin_unlock(&bnad->priv_lock);
+ if (BNA_IS_ERR_INTR(intr_status) ||
+ !BNA_IS_INTX_DATA_INTR(intr_status))
+ goto exit_isr;
+ } else
+ spin_unlock(&bnad->priv_lock);
+
+ if (likely(napi_schedule_prep(&bnad->cq_table[0].napi))) {
+ bnad_disable_txrx_irqs(bnad);
+ __napi_schedule(&bnad->cq_table[0].napi);
+ }
+
+exit_isr:
+ return IRQ_HANDLED;
+}
+
+static int bnad_request_mbox_irq(struct bnad *bnad)
+{
+ int err;
+
+ if (bnad->config & BNAD_CF_MSIX) {
+ err = request_irq(bnad->msix_table[bnad->msix_num - 1].vector,
+ &bnad_msix_err_mbox, 0,
+ bnad->netdev->name, bnad->netdev);
+ } else {
+ err = request_irq(bnad->pcidev->irq, &bnad_isr,
+ IRQF_SHARED, bnad->netdev->name,
+ bnad->netdev);
+ }
+
+ if (err) {
+ dev_err(&bnad->pcidev->dev,
+ "Request irq for mailbox failed: %d\n", err);
+ return err;
+ }
+
+ if (bnad->config & BNAD_CF_MSIX)
+ bna_mbox_msix_idx_set(bnad->priv, bnad->msix_num - 1);
+
+ bna_mbox_intr_enable(bnad->priv);
+ return 0;
+}
+
+static void bnad_sync_mbox_irq(struct bnad *bnad)
+{
+ uint irq;
+
+ if (bnad->config & BNAD_CF_MSIX)
+ irq = bnad->msix_table[bnad->msix_num - 1].vector;
+ else
+ irq = bnad->pcidev->irq;
+ synchronize_irq(irq);
+}
+
+static void bnad_free_mbox_irq(struct bnad *bnad)
+{
+ uint irq;
+
+ if (bnad->config & BNAD_CF_MSIX)
+ irq = bnad->msix_table[bnad->msix_num - 1].vector;
+ else
+ irq = bnad->pcidev->irq;
+
+ spin_lock_irq(&bnad->priv_lock);
+ bna_mbox_intr_disable(bnad->priv);
+ spin_unlock_irq(&bnad->priv_lock);
+
+ free_irq(irq, bnad->netdev);
+}
+
+static int bnad_request_txq_irq(struct bnad *bnad, uint txq_id)
+{
+ if (!(bnad->config & BNAD_CF_MSIX))
+ return 0;
+ return request_irq(bnad->msix_table[txq_id].vector,
+ &bnad_msix_tx, 0,
+ bnad->txq_table[txq_id].name,
+ &bnad->txq_table[txq_id]);
+}
+
+int
+bnad_request_cq_irq(struct bnad *bnad, uint cq_id)
+{
+ if (!(bnad->config & BNAD_CF_MSIX))
+ return 0;
+ return request_irq(bnad->msix_table[bnad->txq_num + cq_id].vector,
+ &bnad_msix_rx, 0,
+ bnad->cq_table[cq_id].name, &bnad->cq_table[cq_id]);
+}
+
+static int bnad_request_txrx_irqs(struct bnad *bnad)
+{
+ struct msix_entry *entries;
+ int i;
+ int err;
+
+ if (!(bnad->config & BNAD_CF_MSIX)) {
+ u32 mask;
+ bna_intx_disable(bnad->priv, &mask);
+ mask &= ~0xffff;
+ bna_intx_enable(bnad->priv, mask);
+ for (i = 0; i < bnad->ib_num; i++)
+ bna_ib_ack(bnad->priv, bnad->ib_table[i].ib, 0);
+ return 0;
+ }
+
+ entries = bnad->msix_table;
+ for (i = 0; i < bnad->txq_num; i++) {
+ err = bnad_request_txq_irq(bnad, i);
+ if (err) {
+ pr_info("%s request irq for TxQ %d failed %d",
+ bnad->netdev->name, i, err);
+ while (--i >= 0) {
+ free_irq(entries[i].vector,
+ &bnad->txq_table[i]);
+ }
+ return err;
+ }
+ }
+
+ for (i = 0; i < bnad->cq_num; i++) {
+ err = bnad_request_cq_irq(bnad, i);
+ if (err) {
+ pr_info("%s request irq for CQ %u failed %d",
+ bnad->netdev->name, i, err);
+ while (--i >= 0) {
+ free_irq(entries[bnad->txq_num + i].vector,
+ &bnad->cq_table[i]);
+ }
+ goto free_txq_irqs;
+ }
+ }
+
+ return 0;
+
+free_txq_irqs:
+ for (i = 0; i < bnad->txq_num; i++)
+ free_irq(entries[i].vector, &bnad->txq_table[i]);
+
+ bnad_disable_msix(bnad);
+
+ return err;
+}
+
+static void bnad_free_txrx_irqs(struct bnad *bnad)
+{
+ struct msix_entry *entries;
+ uint i;
+
+ if (bnad->config & BNAD_CF_MSIX) {
+ entries = bnad->msix_table;
+ for (i = 0; i < bnad->txq_num; i++)
+ free_irq(entries[i].vector, &bnad->txq_table[i]);
+
+ for (i = 0; i < bnad->cq_num; i++) {
+ free_irq(entries[bnad->txq_num + i].vector,
+ &bnad->cq_table[i]);
+ }
+ } else
+ synchronize_irq(bnad->pcidev->irq);
+}
+
+void
+bnad_setup_ib(struct bnad *bnad, uint ib_id)
+{
+ struct bnad_ib_entry *ib_entry;
+
+ ib_entry = &bnad->ib_table[ib_id];
+ spin_lock_irq(&bnad->priv_lock);
+ bna_ib_config_set(bnad->priv, ib_entry->ib, ib_id,
+ &ib_entry->ib_config);
+ /* Start the IB */
+ bna_ib_ack(bnad->priv, ib_entry->ib, 0);
+ spin_unlock_irq(&bnad->priv_lock);
+}
+
+static void bnad_setup_ibs(struct bnad *bnad)
+{
+ int i;
+
+ for (i = 0; i < bnad->txq_num; i++)
+ bnad_setup_ib(bnad, bnad->txq_table[i].txq_config.ib_id);
+
+ for (i = 0; i < bnad->cq_num; i++)
+ bnad_setup_ib(bnad, bnad->cq_table[i].cq_config.ib_id);
+}
+
+/* These functions are called back with priv_lock held. */
+
+static void bnad_lldp_get_cfg_cb(void *arg, u8 status)
+{
+ struct bnad *bnad = arg;
+ bnad->lldp_comp_status = status;
+ complete(&bnad->lldp_comp);
+}
+
+static void bnad_cee_get_attr_cb(void *arg, bfa_status_t status)
+{
+ struct bnad *bnad = arg;
+ bnad->lldp_comp_status = status;
+ complete(&bnad->lldp_comp);
+}
+
+static void bnad_cee_get_stats_cb(void *arg, bfa_status_t status)
+{
+ struct bnad *bnad = arg;
+ bnad->cee_stats_comp_status = status;
+ complete(&bnad->cee_stats_comp);
+}
+
+static void bnad_cee_reset_stats_cb(void *arg, bfa_status_t status)
+{
+ struct bnad *bnad = arg;
+ bnad->cee_reset_stats_status = status;
+ complete(&bnad->cee_reset_stats_comp);
+}
+
+static void bnad_ucast_set_cb(void *arg, u8 status)
+{
+ struct bnad *bnad = (struct bnad *)arg;
+
+ bnad->ucast_comp_status = status;
+ complete(&bnad->ucast_comp);
+}
+
+static void bnad_q_stop_cb(void *arg, u8 status)
+{
+ struct bnad *bnad = arg;
+
+ bnad->qstop_comp_status = status;
+ complete(&bnad->qstop_comp);
+}
+
+static unsigned int bnad_get_priority(struct bnad *bnad, u8 prio_map)
+{
+ unsigned int i;
+
+ if (prio_map) {
+ for (i = 0; i < 8; i++) {
+ if ((prio_map >> i) & 0x1)
+ break;
+ }
+ return i;
+ }
+ return 0;
+}
+
+static void bnad_link_up_cb(void *arg, u8 status)
+{
+ struct bnad *bnad = (struct bnad *)arg;
+ struct bfi_ll_aen *up_aen = (struct bfi_ll_aen *)
+ (&bnad->priv->mb_msg);
+
+ bnad->cee_linkup = up_aen->cee_linkup;
+ bnad->priority = bnad_get_priority(bnad, up_aen->prio_map);
+
+ bnad->link_state = BNAD_LS_UP;
+ bnad->work_flags |= BNAD_WF_LS_NOTIFY;
+
+ schedule_work(&bnad->work);
+}
+
+static void bnad_link_down_cb(void *arg, u8 status)
+{
+ struct bnad *bnad = (struct bnad *)arg;
+
+ bnad->link_state = BNAD_LS_DOWN;
+ bnad->work_flags |= BNAD_WF_LS_NOTIFY;
+
+ schedule_work(&bnad->work);
+}
+
+static void bnad_stats_get_cb(void *arg, u8 status)
+{
+ struct bnad *bnad = (struct bnad *)arg;
+
+ bnad->stats.hw_stats_updates++;
+ if (bnad->state == BNAD_S_OPEN)
+ mod_timer(&bnad->stats_timer, jiffies + HZ);
+}
+
+/* Called with bnad priv_lock held. */
+static void bnad_hw_error(struct bnad *bnad, u8 status)
+{
+ unsigned int irq;
+
+ set_bit(BNAD_F_HWERROR, &bnad->flags);
+
+ bna_mbox_intr_disable(bnad->priv);
+ if (bnad->config & BNAD_CF_MSIX) {
+ if (!test_and_set_bit(BNAD_F_MBOX_IRQ_DISABLED, &bnad->flags)) {
+ irq = bnad->msix_table[bnad->msix_num - 1].vector;
+ pr_info("Disabling Mbox IRQ %d for port %d",
+ irq, bnad->bna_id);
+ disable_irq_nosync(irq);
+ }
+ }
+
+ bna_cleanup(bnad->priv);
+
+ bnad->work_flags = BNAD_WF_ERROR;
+ if (bnad->state != BNAD_S_UNLOADING)
+ schedule_work(&bnad->work);
+}
+
+static void bnad_hw_error_cb(void *arg, u8 status)
+{
+ struct bnad *bnad = (struct bnad *)arg;
+
+ bnad_hw_error(bnad, status);
+}
+
+int
+bnad_alloc_unmap_q(struct bnad_unmap_q *unmap_q, u32 q_depth)
+{
+ /* Q_depth must be power of 2 for macros to work. */
+ unmap_q->q_depth = q_depth;
+ unmap_q->unmap_array = vmalloc(q_depth * sizeof(struct bnad_skb_unmap));
+ if (!unmap_q->unmap_array)
+ return -ENOMEM;
+ memset(unmap_q->unmap_array, 0,
+ q_depth * sizeof(struct bnad_skb_unmap));
+ return 0;
+}
+
+static int bnad_alloc_unmap_queues(struct bnad *bnad)
+{
+ int i, err = 0;
+ struct bnad_txq_info *txqinfo;
+ struct bnad_rxq_info *rxqinfo;
+
+ for (i = 0; i < bnad->txq_num; i++) {
+ txqinfo = &bnad->txq_table[i];
+ err = bnad_alloc_unmap_q(&txqinfo->skb_unmap_q,
+ txqinfo->txq.q.q_depth * 4);
+ if (err) {
+ pr_info(
+ "%s allocating Tx unmap Q %d failed: %d",
+ bnad->netdev->name, i, err);
+ return err;
+ }
+ }
+ for (i = 0; i < bnad->rxq_num; i++) {
+ rxqinfo = &bnad->rxq_table[i];
+ err = bnad_alloc_unmap_q(&rxqinfo->skb_unmap_q,
+ rxqinfo->rxq.q.q_depth);
+ if (err) {
+ pr_info(
+ "%s allocating Rx unmap Q %d failed: %d",
+ bnad->netdev->name, i, err);
+ return err;
+ }
+ }
+ return 0;
+}
+
+static void bnad_reset_q(struct bnad *bnad, struct bna_q *q,
+ struct bnad_unmap_q *unmap_q)
+{
+ q->producer_index = 0;
+ q->consumer_index = 0;
+ unmap_q->producer_index = 0;
+ unmap_q->consumer_index = 0;
+}
+
+static void bnad_flush_rxbufs(struct bnad_rxq_info *rxqinfo)
+{
+ struct bnad *bnad = rxqinfo->bnad;
+ struct bnad_unmap_q *unmap_q;
+ struct sk_buff *skb;
+ u32 cq_id;
+
+ unmap_q = &rxqinfo->skb_unmap_q;
+ while (BNA_QE_IN_USE_CNT(unmap_q, unmap_q->q_depth)) {
+ skb = unmap_q->unmap_array[unmap_q->consumer_index].skb;
+ unmap_q->unmap_array[unmap_q->consumer_index].skb = NULL;
+ pci_unmap_single(bnad->pcidev,
+ pci_unmap_addr(&unmap_q->
+ unmap_array[unmap_q->
+ consumer_index],
+ dma_addr),
+ rxqinfo->rxq_config.buffer_size + NET_IP_ALIGN,
+ PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(skb);
+ BNA_QE_INDX_ADD(unmap_q->consumer_index, 1, unmap_q->q_depth);
+ BNA_Q_CI_ADD(&rxqinfo->rxq, 1);
+ }
+
+ bnad_reset_q(bnad, &rxqinfo->rxq.q, &rxqinfo->skb_unmap_q);
+ cq_id = rxqinfo->rxq_id / bnad_rxqs_per_cq;
+ *bnad->cq_table[cq_id].hw_producer_index = 0;
+}
+
+/* Should be called with conf_lock held. */
+static int bnad_disable_txq(struct bnad *bnad, u32 txq_id)
+{
+ int err;
+
+ WARN_ON(in_interrupt());
+
+ init_completion(&bnad->qstop_comp);
+ spin_lock_irq(&bnad->priv_lock);
+ err = bna_txq_stop(bnad->priv, txq_id);
+ spin_unlock_irq(&bnad->priv_lock);
+
+ if (err) {
+ if (err == BNA_AGAIN)
+ err = 0;
+ goto txq_stop_exit;
+ }
+
+ if (BNAD_NOT_READY(bnad)) {
+ err = BNA_FAIL;
+ goto txq_stop_exit;
+ }
+ wait_for_completion(&bnad->qstop_comp);
+ err = bnad->qstop_comp_status;
+
+ if (err == BFI_LL_CMD_NOT_EXEC) {
+ if (bnad->state == BNAD_S_CLOSING)
+ err = 0;
+ else
+ err = BNA_FAIL;
+ }
+
+txq_stop_exit:
+ if (err) {
+ pr_info("%s stop TxQ %u failed %d", bnad->netdev->name,
+ txq_id, err);
+ }
+
+ return err;
+}
+
+/* Should be called with conf_lock held. */
+int
+bnad_disable_rxqs(struct bnad *bnad, u64 rxq_id_mask)
+{
+ int err;
+
+ WARN_ON(in_interrupt());
+
+ init_completion(&bnad->qstop_comp);
+
+ spin_lock_irq(&bnad->priv_lock);
+ err = bna_multi_rxq_stop(bnad->priv, rxq_id_mask);
+ spin_unlock_irq(&bnad->priv_lock);
+ if (err) {
+ if (err == BNA_AGAIN)
+ err = 0;
+ goto rxq_stop_exit;
+ }
+
+ if (BNAD_NOT_READY(bnad)) {
+ err = BNA_FAIL;
+ goto rxq_stop_exit;
+ }
+ wait_for_completion(&bnad->qstop_comp);
+
+ err = bnad->qstop_comp_status;
+
+ if (err == BFI_LL_CMD_NOT_EXEC) {
+ if (bnad->state == BNAD_S_CLOSING)
+ err = 0;
+ else
+ err = BNA_FAIL;
+ }
+
+rxq_stop_exit:
+ if (err) {
+ pr_info("%s stop RxQs(0x%llu) failed %d",
+ bnad->netdev->name, rxq_id_mask, err);
+ }
+
+ return err;
+}
+
+static int bnad_poll_rx(struct napi_struct *napi, int budget)
+{
+ struct bnad_cq_info *cqinfo =
+ container_of(napi, struct bnad_cq_info, napi);
+ struct bnad *bnad = cqinfo->bnad;
+ unsigned int rcvd;
+
+ rcvd = bnad_poll_cq(bnad, cqinfo, budget);
+ if (rcvd == budget)
+ return rcvd;
+ napi_complete(napi);
+ bnad->stats.napi_complete++;
+ bnad_enable_rx_irq(bnad, cqinfo);
+ return rcvd;
+}
+
+static int bnad_poll_txrx(struct napi_struct *napi, int budget)
+{
+ struct bnad_cq_info *cqinfo =
+ container_of(napi, struct bnad_cq_info, napi);
+ struct bnad *bnad = cqinfo->bnad;
+ unsigned int rcvd;
+
+ bnad_tx(bnad, &bnad->txq_table[0]);
+ rcvd = bnad_poll_cq(bnad, cqinfo, budget);
+ if (rcvd == budget)
+ return rcvd;
+ napi_complete(napi);
+ bnad->stats.napi_complete++;
+ bnad_enable_txrx_irqs(bnad);
+ return rcvd;
+}
+
+static void bnad_napi_init(struct bnad *bnad)
+{
+ int (*napi_poll) (struct napi_struct *, int);
+ int i;
+
+ if (bnad->config & BNAD_CF_MSIX)
+ napi_poll = bnad_poll_rx;
+ else
+ napi_poll = bnad_poll_txrx;
+
+ for (i = 0; i < bnad->cq_num; i++)
+ netif_napi_add(bnad->netdev, &bnad->cq_table[i].napi, napi_poll,
+ 64);
+}
+
+static void bnad_napi_enable(struct bnad *bnad)
+{
+ int i;
+
+ for (i = 0; i < bnad->cq_num; i++)
+ napi_enable(&bnad->cq_table[i].napi);
+}
+
+static void bnad_napi_disable(struct bnad *bnad)
+{
+ int i;
+
+ for (i = 0; i < bnad->cq_num; i++)
+ napi_disable(&bnad->cq_table[i].napi);
+}
+
+static void bnad_napi_uninit(struct bnad *bnad)
+{
+ int i;
+
+ for (i = 0; i < bnad->cq_num; i++)
+ netif_napi_del(&bnad->cq_table[i].napi);
+}
+
+static void bnad_stop_data_path(struct bnad *bnad, int on_error)
+{
+ int i;
+
+ spin_lock_irq(&bnad->priv_lock);
+ if (!on_error && !BNAD_NOT_READY(bnad)) {
+ bna_txf_disable(bnad->priv, BNAD_TX_FUNC_ID);
+ bna_multi_rxf_disable(bnad->priv, (1 << bnad->rxf_num) - 1);
+ for (i = 0; i < bnad->txq_num; i++)
+ bna_ib_disable(bnad->priv, &bnad->txq_table[i].ib);
+ for (i = 0; i < bnad->cq_num; i++)
+ bna_ib_disable(bnad->priv, &bnad->cq_table[i].ib);
+ }
+ spin_unlock_irq(&bnad->priv_lock);
+
+ /* Wait to make sure Tx and Rx are stopped. */
+ msleep(1000);
+ bnad_free_txrx_irqs(bnad);
+ bnad_sync_mbox_irq(bnad);
+
+ bnad_napi_disable(bnad);
+ bnad_napi_uninit(bnad);
+ /* Delete the stats timer after synchronize with mbox irq. */
+ del_timer_sync(&bnad->stats_timer);
+
+ netif_tx_disable(bnad->netdev);
+ netif_carrier_off(bnad->netdev);
+
+ /*
+ * Remove tasklets if scheduled
+ */
+ tasklet_kill(&bnad->tx_free_tasklet);
+}
+
+static void bnad_port_admin_locked(struct bnad *bnad, u8 up)
+{
+
+ spin_lock_irq(&bnad->priv_lock);
+ if (!BNAD_NOT_READY(bnad)) {
+ bna_port_admin(bnad->priv, up);
+ if (up)
+ mod_timer(&bnad->stats_timer, jiffies + HZ);
+ else
+ bnad->link_state = BNAD_LS_DOWN;
+ }
+ spin_unlock_irq(&bnad->priv_lock);
+}
+
+/* Should be called with conf_lock held */
+static int bnad_stop_locked_internal(struct net_device *netdev)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+
+ switch (bnad->state) {
+ case BNAD_S_OPEN:
+ bnad->state = BNAD_S_CLOSING;
+ bnad_disable_locked(bnad);
+ bnad->state = BNAD_S_INIT;
+ pr_info("%s is stopped", bnad->netdev->name);
+ break;
+ case BNAD_S_OPEN_DOWN:
+ bnad->state = BNAD_S_INIT_DOWN;
+ break;
+ case BNAD_S_OPEN_DISABLED:
+ bnad->state = BNAD_S_INIT_DISABLED;
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+/* Should be called with conf_lock held */
+int
+bnad_ioc_disabling_locked(struct bnad *bnad)
+{
+ switch (bnad->state) {
+ case BNAD_S_INIT:
+ case BNAD_S_INIT_DOWN:
+ bnad->state = BNAD_S_INIT_DISABLING;
+ break;
+ case BNAD_S_OPEN:
+ bnad->state = BNAD_S_OPEN_DISABLING;
+ bnad_port_admin_locked(bnad, BNA_DISABLE);
+ bnad_disable_locked(bnad);
+ break;
+ case BNAD_S_OPEN_DOWN:
+ bnad->state = BNAD_S_OPEN_DISABLING;
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+
+static int bnad_alloc_ib(struct bnad *bnad, uint ib_id)
+{
+ struct bnad_ib_entry *ib_entry;
+ dma_addr_t dma_addr;
+
+ ib_entry = &bnad->ib_table[ib_id];
+ ib_entry->ib_seg_addr =
+ pci_alloc_consistent(bnad->pcidev, L1_CACHE_BYTES, &dma_addr);
+ if (!ib_entry->ib_seg_addr)
+ return -ENOMEM;
+
+ BNA_SET_DMA_ADDR(dma_addr, &ib_entry->ib_config.ib_seg_addr);
+ return 0;
+}
+static int bnad_alloc_ibs(struct bnad *bnad)
+{
+ uint i;
+ int err;
+
+ bnad->ib_num = bnad->txq_num + bnad->cq_num;
+ bnad->ib_table =
+ kcalloc(bnad->ib_num, sizeof(struct bnad_ib_entry),
+ GFP_KERNEL);
+ if (!bnad->ib_table)
+ return -ENOMEM;
+
+ for (i = 0; i < bnad->ib_num; i++) {
+ err = bnad_alloc_ib(bnad, i);
+ if (err)
+ goto free_ibs;
+ }
+ return 0;
+
+free_ibs:
+ bnad_free_ibs(bnad);
+ return err;
+}
+
+void
+bnad_free_ib(struct bnad *bnad, uint ib_id)
+{
+ struct bnad_ib_entry *ib_entry;
+ dma_addr_t dma_addr;
+
+ ib_entry = &bnad->ib_table[ib_id];
+ if (ib_entry->ib_seg_addr) {
+ BNA_GET_DMA_ADDR(&ib_entry->ib_config.ib_seg_addr, dma_addr);
+ pci_free_consistent(bnad->pcidev, L1_CACHE_BYTES,
+ ib_entry->ib_seg_addr, dma_addr);
+ ib_entry->ib_seg_addr = NULL;
+ }
+}
+
+static void bnad_free_ibs(struct bnad *bnad)
+{
+ uint i;
+
+ if (!bnad->ib_table)
+ return;
+ for (i = 0; i < bnad->ib_num; i++)
+ bnad_free_ib(bnad, i);
+ kfree(bnad->ib_table);
+ bnad->ib_table = NULL;
+}
+
+/* Let the caller deal with error - free memory. */
+static int bnad_alloc_q(struct bnad *bnad, struct bna_qpt *qpt,
+ struct bna_q *q, size_t qsize)
+{
+ size_t i;
+ dma_addr_t dma_addr;
+
+ qsize = ALIGN(qsize, PAGE_SIZE);
+ qpt->page_count = qsize >> PAGE_SHIFT;
+ qpt->page_size = PAGE_SIZE;
+
+ qpt->kv_qpt_ptr =
+ pci_alloc_consistent(bnad->pcidev,
+ qpt->page_count *
+ sizeof(struct bna_dma_addr), &dma_addr);
+ if (!qpt->kv_qpt_ptr)
+ return -ENOMEM;
+ BNA_SET_DMA_ADDR(dma_addr, &qpt->hw_qpt_ptr);
+
+ q->qpt_ptr = kcalloc(qpt->page_count, sizeof(void *), GFP_KERNEL);
+ if (!q->qpt_ptr)
+ return -ENOMEM;
+ qpt->qpt_ptr = q->qpt_ptr;
+ for (i = 0; i < qpt->page_count; i++) {
+ q->qpt_ptr[i] =
+ pci_alloc_consistent(bnad->pcidev, PAGE_SIZE,
+ &dma_addr);
+ if (!q->qpt_ptr[i])
+ return -ENOMEM;
+ BNA_SET_DMA_ADDR(dma_addr,
+ &((struct bna_dma_addr *)qpt->kv_qpt_ptr)[i]);
+
+ }
+
+ return 0;
+}
+
+static void bnad_free_q(struct bnad *bnad, struct bna_qpt *qpt,
+ struct bna_q *q)
+{
+ int i;
+ dma_addr_t dma_addr;
+
+ if (qpt->kv_qpt_ptr && q->qpt_ptr) {
+ for (i = 0; i < qpt->page_count; i++) {
+ if (q->qpt_ptr[i]) {
+ BNA_GET_DMA_ADDR(&
+ ((struct bna_dma_addr *)qpt->
+ kv_qpt_ptr)[i], dma_addr);
+ pci_free_consistent(bnad->pcidev, PAGE_SIZE,
+ q->qpt_ptr[i], dma_addr);
+ }
+ }
+ }
+
+ kfree(q->qpt_ptr);
+ qpt->qpt_ptr = q->qpt_ptr = NULL;
+
+ if (qpt->kv_qpt_ptr) {
+ BNA_GET_DMA_ADDR(&qpt->hw_qpt_ptr, dma_addr);
+ pci_free_consistent(bnad->pcidev,
+ qpt->page_count *
+ sizeof(struct bna_dma_addr),
+ qpt->kv_qpt_ptr, dma_addr);
+ qpt->kv_qpt_ptr = NULL;
+ }
+}
+
+static void bnad_free_txq(struct bnad *bnad, uint txq_id)
+{
+ struct bnad_txq_info *txqinfo;
+
+ txqinfo = &bnad->txq_table[txq_id];
+ bnad_free_q(bnad, &txqinfo->txq_config.qpt, &txqinfo->txq.q);
+ if (txqinfo->skb_unmap_q.unmap_array) {
+ bnad_free_txbufs(txqinfo, txqinfo->txq.q.producer_index);
+ vfree(txqinfo->skb_unmap_q.unmap_array);
+ txqinfo->skb_unmap_q.unmap_array = NULL;
+ }
+}
+
+void
+bnad_free_rxq(struct bnad *bnad, uint rxq_id)
+{
+ struct bnad_rxq_info *rxqinfo;
+
+ rxqinfo = &bnad->rxq_table[rxq_id];
+ bnad_free_q(bnad, &rxqinfo->rxq_config.qpt, &rxqinfo->rxq.q);
+ if (rxqinfo->skb_unmap_q.unmap_array) {
+ bnad_flush_rxbufs(rxqinfo);
+ vfree(rxqinfo->skb_unmap_q.unmap_array);
+ rxqinfo->skb_unmap_q.unmap_array = NULL;
+ }
+}
+
+void
+bnad_free_cq(struct bnad *bnad, uint cq_id)
+{
+ struct bnad_cq_info *cqinfo = &bnad->cq_table[cq_id];
+
+ bnad_free_q(bnad, &cqinfo->cq_config.qpt, &cqinfo->cq.q);
+}
+
+static void bnad_free_queues(struct bnad *bnad)
+{
+ uint i;
+
+ if (bnad->txq_table) {
+ for (i = 0; i < bnad->txq_num; i++)
+ bnad_free_txq(bnad, i);
+ kfree(bnad->txq_table);
+ bnad->txq_table = NULL;
+ }
+
+ if (bnad->rxq_table) {
+ for (i = 0; i < bnad->rxq_num; i++)
+ bnad_free_rxq(bnad, i);
+ kfree(bnad->rxq_table);
+ bnad->rxq_table = NULL;
+ }
+
+ if (bnad->cq_table) {
+ for (i = 0; i < bnad->cq_num; i++)
+ bnad_free_cq(bnad, i);
+ kfree(bnad->cq_table);
+ bnad->cq_table = NULL;
+ }
+}
+
+static int bnad_txq_init(struct bnad *bnad, uint txq_id)
+{
+ struct bnad_txq_info *txqinfo;
+ int err;
+
+ txqinfo = &bnad->txq_table[txq_id];
+ err = bnad_alloc_q(bnad, &txqinfo->txq_config.qpt, &txqinfo->txq.q,
+ bnad->txq_depth * sizeof(struct bna_txq_entry));
+ if (err) {
+ bnad_free_q(bnad, &txqinfo->txq_config.qpt, &txqinfo->txq.q);
+ return err;
+ }
+ txqinfo->txq.q.q_depth = bnad->txq_depth;
+ txqinfo->bnad = bnad;
+ txqinfo->txq_config.txf_id = BNAD_TX_FUNC_ID;
+ snprintf(txqinfo->name, sizeof(txqinfo->name), "%s TxQ %d",
+ bnad->netdev->name, txq_id);
+ return 0;
+}
+
+static int bnad_txqs_init(struct bnad *bnad)
+{
+ int i, err = 0;
+
+ bnad->txq_table =
+ kcalloc(bnad->txq_num, sizeof(struct bnad_txq_info),
+ GFP_KERNEL);
+ if (!bnad->txq_table)
+ return -ENOMEM;
+
+ for (i = 0; i < bnad->txq_num; i++) {
+ err = bnad_txq_init(bnad, i);
+ if (err)
+ break;
+ }
+ return err;
+}
+
+int
+bnad_rxq_init(struct bnad *bnad, uint rxq_id)
+{
+ struct bnad_rxq_info *rxqinfo;
+ int err;
+
+ rxqinfo = &bnad->rxq_table[rxq_id];
+ err = bnad_alloc_q(bnad, &rxqinfo->rxq_config.qpt, &rxqinfo->rxq.q,
+ bnad->rxq_depth * sizeof(struct bna_rxq_entry));
+ if (err) {
+ bnad_free_q(bnad, &rxqinfo->rxq_config.qpt, &rxqinfo->rxq.q);
+ return err;
+ }
+ rxqinfo->rxq.q.q_depth = bnad->rxq_depth;
+ rxqinfo->bnad = bnad;
+ rxqinfo->rxq_id = rxq_id;
+ rxqinfo->rxq_config.cq_id = rxq_id / bnad_rxqs_per_cq;
+
+ return 0;
+}
+
+static int
+bnad_rxqs_init(struct bnad *bnad)
+{
+ int i, err = 0;
+
+ bnad->rxq_table =
+ kcalloc(bnad->rxq_num, sizeof(struct bnad_rxq_info),
+ GFP_KERNEL);
+ if (!bnad->rxq_table)
+ return -EINVAL;
+
+ for (i = 0; i < bnad->rxq_num; i++) {
+ err = bnad_rxq_init(bnad, i);
+ if (err)
+ break;
+ }
+ return err;
+}
+
+int
+bnad_cq_init(struct bnad *bnad, uint cq_id)
+{
+ struct bnad_cq_info *cqinfo;
+ int err;
+
+ cqinfo = &bnad->cq_table[cq_id];
+ err = bnad_alloc_q(bnad, &cqinfo->cq_config.qpt, &cqinfo->cq.q,
+ bnad->rxq_depth * bnad_rxqs_per_cq *
+ sizeof(struct bna_cq_entry));
+ if (err) {
+ bnad_free_q(bnad, &cqinfo->cq_config.qpt, &cqinfo->cq.q);
+ return err;
+ }
+
+ cqinfo->cq.q.q_depth = bnad->rxq_depth * bnad_rxqs_per_cq;
+ cqinfo->bnad = bnad;
+
+ cqinfo->rx_coalescing_timeo = bnad->rx_coalescing_timeo;
+
+ cqinfo->cq_id = cq_id;
+ snprintf(cqinfo->name, sizeof(cqinfo->name), "%s CQ %d",
+ bnad->netdev->name, cq_id);
+
+ return 0;
+}
+
+static int bnad_cqs_init(struct bnad *bnad)
+{
+ int i, err = 0;
+
+ bnad->cq_table =
+ kcalloc(bnad->cq_num, sizeof(struct bnad_cq_info), GFP_KERNEL);
+ if (!bnad->cq_table)
+ return -ENOMEM;
+
+ for (i = 0; i < bnad->cq_num; i++) {
+ err = bnad_cq_init(bnad, i);
+ if (err)
+ break;
+ }
+ return err;
+}
+
+static uint bnad_get_qsize(uint qsize_conf, uint mtu)
+{
+ uint qsize;
+
+ if (mtu >= ETH_DATA_LEN) {
+ qsize = qsize_conf / (mtu / ETH_DATA_LEN);
+ if (!BNA_POWER_OF_2(qsize))
+ BNA_TO_POWER_OF_2_HIGH(qsize);
+ if (qsize < BNAD_MIN_Q_DEPTH)
+ qsize = BNAD_MIN_Q_DEPTH;
+ } else
+ qsize = bnad_txq_depth;
+
+ return qsize;
+}
+
+static int bnad_init_queues(struct bnad *bnad)
+{
+ int err;
+
+ if (!(bnad->config & BNAD_CF_TXQ_DEPTH))
+ bnad->txq_depth =
+ bnad_get_qsize(bnad_txq_depth, bnad->netdev->mtu);
+ if (!(bnad->config & BNAD_CF_RXQ_DEPTH))
+ bnad->rxq_depth =
+ bnad_get_qsize(bnad_rxq_depth, bnad->netdev->mtu);
+
+ err = bnad_txqs_init(bnad);
+ if (err)
+ return err;
+
+ err = bnad_rxqs_init(bnad);
+ if (err)
+ return err;
+
+ err = bnad_cqs_init(bnad);
+
+ return err;
+}
+
+void
+bnad_rxib_init(struct bnad *bnad, uint cq_id, uint ib_id)
+{
+ struct bnad_cq_info *cqinfo;
+ struct bnad_ib_entry *ib_entry;
+ struct bna_ib_config *ib_config;
+
+ cqinfo = &bnad->cq_table[cq_id];
+ ib_entry = &bnad->ib_table[ib_id];
+
+ cqinfo->hw_producer_index = (u32 *) (ib_entry->ib_seg_addr);
+ cqinfo->cq_config.ib_id = ib_id;
+ cqinfo->cq_config.ib_seg_index = 0;
+
+ ib_entry->ib = &cqinfo->ib;
+ ib_config = &ib_entry->ib_config;
+ ib_config->coalescing_timer = bnad->rx_coalescing_timeo;
+ ib_config->control_flags =
+ BNA_IB_CF_INT_ENABLE | BNA_IB_CF_MASTER_ENABLE;
+ if (bnad->config & BNAD_CF_MSIX) {
+ ib_config->control_flags |= BNA_IB_CF_MSIX_MODE;
+ ib_config->msix_vector = ib_id;
+ } else
+ ib_config->msix_vector = 1 << ib_id;
+
+ /* Every CQ has its own IB. */
+ ib_config->seg_size = 1;
+ ib_config->index_table_offset = ib_id;
+}
+
+static void bnad_ibs_init(struct bnad *bnad)
+{
+ struct bnad_ib_entry *ib_entry;
+ struct bna_ib_config *ib_config;
+ struct bnad_txq_info *txqinfo;
+
+ int ib_id, i;
+
+ ib_id = 0;
+ for (i = 0; i < bnad->txq_num; i++) {
+ txqinfo = &bnad->txq_table[i];
+ ib_entry = &bnad->ib_table[ib_id];
+
+ txqinfo->hw_consumer_index = ib_entry->ib_seg_addr;
+ txqinfo->txq_config.ib_id = ib_id;
+ txqinfo->txq_config.ib_seg_index = 0;
+
+ ib_entry->ib = &txqinfo->ib;
+ ib_config = &ib_entry->ib_config;
+ ib_config->coalescing_timer = bnad->tx_coalescing_timeo;
+ ib_config->control_flags =
+ BNA_IB_CF_INTER_PKT_DMA | BNA_IB_CF_INT_ENABLE |
+ BNA_IB_CF_COALESCING_MODE | BNA_IB_CF_MASTER_ENABLE;
+ if (bnad->config & BNAD_CF_MSIX) {
+ ib_config->control_flags |= BNA_IB_CF_MSIX_MODE;
+ ib_config->msix_vector = ib_id;
+ } else
+ ib_config->msix_vector = 1 << ib_id;
+ ib_config->interpkt_count = bnad->tx_interpkt_count;
+
+ /* Every TxQ has its own IB. */
+ ib_config->seg_size = 1;
+ ib_config->index_table_offset = ib_id;
+ ib_id++;
+ }
+
+ for (i = 0; i < bnad->cq_num; i++, ib_id++)
+ bnad_rxib_init(bnad, i, ib_id);
+}
+
+static void
+bnad_txf_init(struct bnad *bnad, uint txf_id)
+{
+ struct bnad_txf_info *txf_info;
+
+ txf_info = &bnad->txf_table[txf_id];
+ txf_info->txf_id = txf_id;
+ txf_info->txf_config.flags =
+ BNA_TXF_CF_VLAN_WI_BASED | BNA_TXF_CF_ENABLE;
+}
+
+void
+bnad_rxf_init(struct bnad *bnad, uint rxf_id, u8 rit_offset, int rss)
+{
+ struct bnad_rxf_info *rxf_info;
+
+ rxf_info = &bnad->rxf_table[rxf_id];
+ rxf_info->rxf_id = rxf_id;
+ rxf_info->rxf_config.rit_offset = rit_offset;
+ rxf_info->rxf_config.mcast_rxq_id = BNAD_MULTICAST_RXQ_ID;
+ if (bnad_small_large_rxbufs)
+ rxf_info->rxf_config.flags |= BNA_RXF_CF_SM_LG_RXQ;
+ if (bnad_vlan_strip)
+ rxf_info->rxf_config.flags |= BNA_RXF_CF_VLAN_STRIP;
+ if (rss) {
+ struct bna_rxf_rss *rxf_rss;
+
+ rxf_info->rxf_config.flags |= BNA_RXF_CF_RSS_ENABLE;
+ rxf_rss = &rxf_info->rxf_config.rss;
+ rxf_rss->type =
+ BNA_RSS_V4_TCP | BNA_RSS_V4_IP | BNA_RSS_V6_TCP |
+ BNA_RSS_V6_IP;
+ rxf_rss->hash_mask = bnad->cq_num - 1;
+ get_random_bytes(rxf_rss->toeplitz_hash_key,
+ sizeof(rxf_rss->toeplitz_hash_key));
+ }
+}
+
+static int bnad_init_funcs(struct bnad *bnad)
+{
+ bnad->txf_table =
+ kcalloc(bnad->txf_num, sizeof(struct bnad_txf_info),
+ GFP_KERNEL);
+ if (!bnad->txf_table)
+ return -ENOMEM;
+ bnad_txf_init(bnad, BNAD_TX_FUNC_ID);
+
+ bnad->rxf_table =
+ kcalloc(bnad->rxf_num, sizeof(struct bnad_rxf_info),
+ GFP_KERNEL);
+ if (!bnad->rxf_table)
+ return -ENOMEM;
+ bnad_rxf_init(bnad, BNAD_RX_FUNC_ID, BNAD_RIT_OFFSET,
+ (bnad->cq_num > 1) ? 1 : 0);
+ return 0;
+}
+
+static void bnad_setup_txq(struct bnad *bnad, uint txq_id)
+{
+ struct bnad_txq_info *txqinfo;
+
+ txqinfo = &bnad->txq_table[txq_id];
+
+ /* CEE state should not change while we do this */
+ spin_lock_irq(&bnad->priv_lock);
+ if (!bnad->cee_linkup) {
+ txqinfo->txq_config.priority = bnad->curr_priority = txq_id;
+ clear_bit(BNAD_F_CEE_RUNNING, &bnad->flags);
+ } else {
+ txqinfo->txq_config.priority = bnad->curr_priority =
+ bnad->priority;
+ set_bit(BNAD_F_CEE_RUNNING, &bnad->flags);
+ }
+ /* Set wrr_quota properly if multiple priorities/TxQs are enabled. */
+ txqinfo->txq_config.wrr_quota = BNAD_TX_MAX_WRR_QUOTA;
+ bna_txq_config(bnad->priv, &txqinfo->txq, txq_id, &txqinfo->txq_config);
+ spin_unlock_irq(&bnad->priv_lock);
+}
+
+void
+bnad_setup_rxq(struct bnad *bnad, uint rxq_id)
+{
+ struct bnad_rxq_info *rxqinfo;
+
+ rxqinfo = &bnad->rxq_table[rxq_id];
+
+ /*
+ * Every RxQ set has 2 RxQs: the first is large buffer RxQ,
+ * the second is small buffer RxQ.
+ */
+ if ((rxq_id % bnad_rxqs_per_cq) == 0)
+ rxqinfo->rxq_config.buffer_size =
+ (bnad_vlan_strip ? VLAN_ETH_HLEN : ETH_HLEN) +
+ bnad->netdev->mtu + ETH_FCS_LEN;
+ else
+ rxqinfo->rxq_config.buffer_size = BNAD_SMALL_RXBUF_SIZE;
+
+ spin_lock_irq(&bnad->priv_lock);
+ bna_rxq_config(bnad->priv, &rxqinfo->rxq, rxq_id, &rxqinfo->rxq_config);
+ spin_unlock_irq(&bnad->priv_lock);
+}
+
+void
+bnad_setup_cq(struct bnad *bnad, uint cq_id)
+{
+ struct bnad_cq_info *cqinfo;
+
+ cqinfo = &bnad->cq_table[cq_id];
+ spin_lock_irq(&bnad->priv_lock);
+ bna_cq_config(bnad->priv, &cqinfo->cq, cq_id, &cqinfo->cq_config);
+ spin_unlock_irq(&bnad->priv_lock);
+}
+
+static void bnad_setup_queues(struct bnad *bnad)
+{
+ uint i;
+
+ for (i = 0; i < bnad->txq_num; i++)
+ bnad_setup_txq(bnad, i);
+
+ for (i = 0; i < bnad->rxq_num; i++)
+ bnad_setup_rxq(bnad, i);
+
+ for (i = 0; i < bnad->cq_num; i++)
+ bnad_setup_cq(bnad, i);
+}
+
+static void bnad_setup_rit(struct bnad *bnad)
+{
+ int i, size;
+
+ size = bnad->cq_num;
+ for (i = 0; i < size; i++) {
+ if (bnad_small_large_rxbufs) {
+ bnad->rit[i].large_rxq_id = (i << 1);
+ bnad->rit[i].small_rxq_id = (i << 1) + 1;
+ } else {
+ bnad->rit[i].large_rxq_id = i;
+ }
+ }
+ spin_lock_irq(&bnad->priv_lock);
+ bna_rit_config_set(bnad->priv, BNAD_RIT_OFFSET, bnad->rit, size);
+ spin_unlock_irq(&bnad->priv_lock);
+}
+
+void
+bnad_alloc_for_rxq(struct bnad *bnad, uint rxq_id)
+{
+ struct bnad_rxq_info *rxqinfo = &bnad->rxq_table[rxq_id];
+ u16 rxbufs;
+
+ bnad_alloc_rxbufs(rxqinfo);
+ rxbufs = BNA_QE_IN_USE_CNT(&rxqinfo->skb_unmap_q,
+ rxqinfo->skb_unmap_q.q_depth);
+}
+
+static int bnad_config_hw(struct bnad *bnad)
+{
+ int i, err = 0;
+ u64 rxq_id_mask = 0;
+ struct sockaddr sa;
+ struct net_device *netdev = bnad->netdev;
+
+ spin_lock_irq(&bnad->priv_lock);
+ if (BNAD_NOT_READY(bnad))
+ goto unlock_and_return;
+
+ /* Disable the RxF until later bringing port up. */
+ bna_multi_rxf_disable(bnad->priv, (1 << bnad->rxf_num) - 1);
+ for (i = 0; i < bnad->txq_num; i++) {
+ spin_unlock_irq(&bnad->priv_lock);
+ err = bnad_disable_txq(bnad, i);
+ spin_lock_irq(&bnad->priv_lock);
+ if (err || BNAD_NOT_READY(bnad))
+ goto unlock_and_return;
+ }
+ for (i = 0; i < bnad->rxq_num; i++)
+ rxq_id_mask |= (1 << i);
+ if (rxq_id_mask) {
+ spin_unlock_irq(&bnad->priv_lock);
+ err = bnad_disable_rxqs(bnad, rxq_id_mask);
+ spin_lock_irq(&bnad->priv_lock);
+ if (err || BNAD_NOT_READY(bnad))
+ goto unlock_and_return;
+ }
+ spin_unlock_irq(&bnad->priv_lock);
+
+ bnad_setup_queues(bnad);
+
+ bnad_setup_rit(bnad);
+
+ spin_lock_irq(&bnad->priv_lock);
+ bna_txf_config_set(bnad->priv, BNAD_TX_FUNC_ID,
+ &bnad->txf_table->txf_config);
+ for (i = 0; i < bnad->rxf_num; i++) {
+ bna_rxf_config_set(bnad->priv, i,
+ &bnad->rxf_table[i].rxf_config);
+ bna_rxf_vlan_filter(bnad->priv, i, BNA_ENABLE);
+ }
+
+ spin_unlock_irq(&bnad->priv_lock);
+ /* Mailbox should be enabled before this! */
+ memcpy(sa.sa_data, netdev->dev_addr, netdev->addr_len);
+ err = bnad_set_mac_address_locked(netdev, &sa);
+ spin_lock_irq(&bnad->priv_lock);
+ if (err || BNAD_NOT_READY(bnad))
+ goto unlock_and_return;
+
+ /* Receive broadcasts */
+ bna_rxf_broadcast(bnad->priv, BNAD_RX_FUNC_ID, BNA_ENABLE);
+
+ bna_mtu_info(bnad->priv, netdev->mtu, bnad);
+ bna_set_pause_config(bnad->priv, &bnad->pause_config, bnad);
+
+ bna_rxf_mcast_del_all(bnad->priv, BNAD_RX_FUNC_ID);
+ bna_mcast_mac_reset_list(bnad->priv);
+
+ bnad_set_rx_mode_locked(bnad->netdev);
+
+ bnad_reconfig_vlans(bnad);
+ spin_unlock_irq(&bnad->priv_lock);
+
+ bnad_setup_ibs(bnad);
+ return 0;
+
+unlock_and_return:
+ if (BNAD_NOT_READY(bnad))
+ err = BNA_FAIL;
+ spin_unlock_irq(&bnad->priv_lock);
+ return err;
+}
+
+/* Note: bnad_cleanup doesn't free irqs */
+static void bnad_cleanup(struct bnad *bnad)
+{
+
+ kfree(bnad->rit);
+ bnad->rit = NULL;
+
+ kfree(bnad->txf_table);
+ bnad->txf_table = NULL;
+
+ kfree(bnad->rxf_table);
+ bnad->rxf_table = NULL;
+
+ bnad_free_ibs(bnad);
+ bnad_free_queues(bnad);
+}
+
+/* Should be called with rtnl_lock held. */
+static int bnad_init(struct bnad *bnad)
+{
+ int err;
+
+ err = bnad_alloc_ibs(bnad);
+ if (err)
+ goto finished;
+
+ err = bnad_init_queues(bnad);
+ if (err)
+ goto finished;
+
+ bnad_ibs_init(bnad);
+
+ err = bnad_init_funcs(bnad);
+ if (err)
+ goto finished;
+
+ err = bnad_alloc_unmap_queues(bnad);
+ if (err)
+ goto finished;
+
+ bnad->rit =
+ kcalloc(bnad->cq_num, sizeof(struct bna_rit_entry),
+ GFP_KERNEL);
+ if (!bnad->rit)
+ goto finished;
+
+ return 0;
+
+finished:
+ bnad_cleanup(bnad);
+ return err;
+}
+
+static int bnad_enable_locked(struct bnad *bnad)
+{
+ struct net_device *netdev = bnad->netdev;
+ int err = 0;
+ uint i;
+
+ bnad->state = BNAD_S_OPENING;
+
+ err = bnad_init(bnad);
+ if (err) {
+ pr_info("%s init failed %d", netdev->name, err);
+ bnad->state = BNAD_S_INIT;
+ return err;
+ }
+
+ err = bnad_config_hw(bnad);
+ if (err) {
+ pr_info("%s config HW failed %d", netdev->name, err);
+ goto init_failed;
+ }
+
+ err = bnad_request_txrx_irqs(bnad);
+ if (err) {
+ pr_info("%s requests Tx/Rx irqs failed: %d",
+ bnad->netdev->name, err);
+ goto init_failed;
+ }
+ bnad_napi_init(bnad);
+ bnad_napi_enable(bnad);
+ for (i = 0; i < bnad->rxq_num; i++)
+ bnad_alloc_for_rxq(bnad, i);
+
+ bnad->state = BNAD_S_OPEN;
+ pr_info("%s is opened", bnad->netdev->name);
+
+ spin_lock_irq(&bnad->priv_lock);
+ if (BNAD_NOT_READY(bnad)) {
+ /* Let bnad_error take care of the error. */
+ spin_unlock_irq(&bnad->priv_lock);
+ return 0;
+ }
+
+ /* RxF was disabled earlier. */
+ bna_rxf_enable(bnad->priv, BNAD_RX_FUNC_ID);
+ spin_unlock_irq(&bnad->priv_lock);
+
+ return 0;
+
+init_failed:
+ bnad_cleanup(bnad);
+ bnad->state = BNAD_S_INIT;
+ return err;
+}
+
+/* Should be called with conf_lock held */
+static int
+bnad_open_locked_internal(struct net_device *netdev)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+ int err = 0;
+
+ switch (bnad->state) {
+ case BNAD_S_INIT:
+ err = bnad_enable_locked(bnad);
+ break;
+ case BNAD_S_INIT_DOWN:
+ bnad->state = BNAD_S_OPEN_DOWN;
+ pr_info("%s is not ready yet: IOC down", netdev->name);
+ break;
+ case BNAD_S_INIT_DISABLED:
+ bnad->state = BNAD_S_OPEN_DISABLED;
+ pr_info("%s is not ready yet: IOC disabled",
+ netdev->name);
+ break;
+ default:
+ BUG_ON(1);
+ break;
+ }
+ return err;
+}
+
+int
+bnad_open_locked(struct net_device *netdev)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+ int err;
+
+ err = bnad_open_locked_internal(netdev);
+
+ if (!err && (bnad->state == BNAD_S_OPEN))
+ bnad_port_admin_locked(bnad, BNA_ENABLE);
+
+ return err;
+}
+
+int
+bnad_open(struct net_device *netdev)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+ int err = 0;
+
+ pr_info("%s open", netdev->name);
+
+ mutex_lock(&bnad->conf_mutex);
+
+ if (test_bit(BNAD_F_BCU_DISABLED, &bnad->flags))
+ pr_info("%s is disabled", netdev->name);
+ else
+ err = bnad_open_locked(netdev);
+
+ mutex_unlock(&bnad->conf_mutex);
+
+ return err;
+}
+
+static int bnad_disable_locked(struct bnad *bnad)
+{
+ int err = 0, i;
+ u64 rxq_id_mask = 0;
+
+ bnad_stop_data_path(bnad, 0);
+
+ for (i = 0; i < bnad->txq_num; i++) {
+ err = bnad_disable_txq(bnad, i);
+ if (err)
+ goto cleanup;
+ }
+
+ for (i = 0; i < bnad->rxq_num; i++)
+ rxq_id_mask |= (1 << i);
+ if (rxq_id_mask) {
+ err = bnad_disable_rxqs(bnad, rxq_id_mask);
+ if (err)
+ goto cleanup;
+ }
+
+cleanup:
+ bnad_cleanup(bnad);
+ return err;
+}
+
+int
+bnad_stop_locked(struct net_device *netdev)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+
+ if (bnad->state == BNAD_S_OPEN)
+ bnad_port_admin_locked(bnad, BNA_DISABLE);
+
+ return bnad_stop_locked_internal(netdev);
+}
+
+int
+bnad_stop(struct net_device *netdev)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+ int err = 0;
+
+ pr_info("%s stop", netdev->name);
+
+ mutex_lock(&bnad->conf_mutex);
+
+ if (test_bit(BNAD_F_BCU_DISABLED, &bnad->flags))
+ pr_info("%s port is disabled", netdev->name);
+ else
+ err = bnad_stop_locked(netdev);
+
+ mutex_unlock(&bnad->conf_mutex);
+
+ return err;
+}
+
+/* Should be called with conf_lock held. */
+int
+bnad_sw_reset_locked_internal(struct net_device *netdev)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+ int err;
+
+ err = bnad_stop_locked_internal(netdev);
+ if (err) {
+ pr_info("%s sw reset internal: stop failed %d",
+ bnad->netdev->name, err);
+ goto done;
+ }
+
+ err = bnad_open_locked_internal(netdev);
+
+ if (err) {
+ pr_info("%s sw reset internal: open failed %d",
+ bnad->netdev->name, err);
+ goto done;
+ }
+ return 0;
+done:
+ return err;
+}
+
+/* Should be called with conf_lock held. */
+int
+bnad_sw_reset_locked(struct net_device *netdev)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+ int err;
+
+ if (bnad->state != BNAD_S_OPEN)
+ return 0;
+
+ bnad_port_admin_locked(bnad, BNA_DISABLE);
+
+ err = bnad_sw_reset_locked_internal(netdev);
+
+ if (err) {
+ pr_info("%s sw reset: failed %d", bnad->netdev->name,
+ err);
+ return err;
+ }
+
+ /* After the reset, make sure we are in the OPEN state) */
+ if (bnad->state == BNAD_S_OPEN)
+ bnad_port_admin_locked(bnad, BNA_ENABLE);
+
+ return 0;
+}
+
+static int bnad_tso_prepare(struct bnad *bnad, struct sk_buff *skb)
+{
+ int err;
+
+ BUG_ON(!(skb_shinfo(skb))->gso_type == SKB_GSO_TCPV4 ||
+ skb_shinfo(skb)->gso_type == SKB_GSO_TCPV6);
+ if (skb_header_cloned(skb)) {
+ err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
+ if (err) {
+ bnad->stats.tso_err++;
+ return err;
+ }
+ }
+
+ /*
+ * For TSO, the TCP checksum field is seeded with pseudo-header sum
+ * excluding the length field.
+ */
+ if (skb->protocol == htons(ETH_P_IP)) {
+ struct iphdr *iph = ip_hdr(skb);
+
+ iph->tot_len = 0;
+ iph->check = 0;
+
+ tcp_hdr(skb)->check =
+ ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0,
+ IPPROTO_TCP, 0);
+ bnad->stats.tso4++;
+ } else {
+ struct ipv6hdr *ipv6h = ipv6_hdr(skb);
+
+ ipv6h->payload_len = 0;
+ tcp_hdr(skb)->check =
+ ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, 0,
+ IPPROTO_TCP, 0);
+ bnad->stats.tso6++;
+ }
+
+ return 0;
+}
+
+netdev_tx_t
+bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+ struct bnad_txq_info *txqinfo;
+ struct bna_txq *txq;
+ struct bnad_unmap_q *unmap_q;
+ u16 txq_prod, vlan_tag = 0;
+ unsigned int unmap_prod, wis, wis_used, wi_range;
+ unsigned int vectors, vect_id, i, acked;
+ int err;
+ dma_addr_t dma_addr;
+ struct bna_txq_entry *txqent;
+ bna_txq_wi_ctrl_flag_t flags;
+
+ if (unlikely
+ (skb->len <= ETH_HLEN || skb->len > BNAD_TX_MAX_DATA_PER_WI)) {
+ dev_kfree_skb(skb);
+ return NETDEV_TX_OK;
+ }
+
+ txqinfo = &bnad->txq_table[0];
+ txq = &txqinfo->txq;
+ unmap_q = &txqinfo->skb_unmap_q;
+
+ vectors = 1 + skb_shinfo(skb)->nr_frags;
+ if (vectors > BNAD_TX_MAX_VECTORS) {
+ dev_kfree_skb(skb);
+ return NETDEV_TX_OK;
+ }
+ wis = BNAD_TXQ_WI_NEEDED(vectors); /* 4 vectors per work item */
+ acked = 0;
+ if (unlikely
+ (wis > BNA_Q_FREE_COUNT(txq) ||
+ vectors > BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth))) {
+ if ((u16) (*txqinfo->hw_consumer_index) !=
+ txq->q.consumer_index &&
+ !test_and_set_bit(BNAD_TXQ_FREE_SENT, &txqinfo->flags)) {
+ acked = bnad_free_txbufs(txqinfo,
+ (u16)(*txqinfo->
+ hw_consumer_index));
+ bna_ib_ack(bnad->priv, &txqinfo->ib, acked);
+
+ smp_mb__before_clear_bit();
+ clear_bit(BNAD_TXQ_FREE_SENT, &txqinfo->flags);
+ } else
+ netif_stop_queue(netdev);
+
+ smp_mb();
+ /*
+ * Check again to deal with race condition between
+ * netif_stop_queue here, and netif_wake_queue in
+ * interrupt handler which is not inside netif tx lock.
+ */
+ if (likely
+ (wis > BNA_Q_FREE_COUNT(txq) ||
+ vectors > BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth))) {
+ bnad->stats.netif_queue_stop++;
+ return NETDEV_TX_BUSY;
+ } else
+ netif_wake_queue(netdev);
+ }
+
+ unmap_prod = unmap_q->producer_index;
+ wis_used = 1;
+ vect_id = 0;
+ flags = 0;
+
+ txq_prod = txq->q.producer_index;
+ BNA_TXQ_QPGE_PTR_GET(txq_prod, &txq->q, txqent, wi_range);
+ BUG_ON(!(wi_range && wi_range <= txq->q.q_depth));
+ txqent->hdr.wi.reserved = 0;
+ txqent->hdr.wi.num_vectors = vectors;
+ txqent->hdr.wi.opcode =
+ htons((skb_is_gso(skb) ? BNA_TXQ_WI_SEND_LSO :
+ BNA_TXQ_WI_SEND));
+
+ if (bnad_ipid_mode)
+ flags |= BNA_TXQ_WI_CF_IPID_MODE;
+
+ if (bnad->vlangrp && vlan_tx_tag_present(skb)) {
+ vlan_tag = (u16) vlan_tx_tag_get(skb);
+ flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN);
+ }
+ if (test_bit(BNAD_F_CEE_RUNNING, &bnad->flags)) {
+ vlan_tag =
+ (bnad->curr_priority & 0x7) << 13 | (vlan_tag & 0x1fff);
+ flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN);
+ }
+
+ txqent->hdr.wi.vlan_tag = htons(vlan_tag);
+
+ if (skb_is_gso(skb)) {
+ err = bnad_tso_prepare(bnad, skb);
+ if (err) {
+ dev_kfree_skb(skb);
+ return NETDEV_TX_OK;
+ }
+ txqent->hdr.wi.lso_mss = htons(skb_is_gso(skb));
+ flags |= (BNA_TXQ_WI_CF_IP_CKSUM | BNA_TXQ_WI_CF_TCP_CKSUM);
+ txqent->hdr.wi.l4_hdr_size_n_offset =
+ htons(BNA_TXQ_WI_L4_HDR_N_OFFSET
+ (tcp_hdrlen(skb) >> 2,
+ skb_transport_offset(skb)));
+
+ } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ u8 proto = 0;
+
+ txqent->hdr.wi.lso_mss = 0;
+
+ if (skb->protocol == htons(ETH_P_IP))
+ proto = ip_hdr(skb)->protocol;
+ else if (skb->protocol == htons(ETH_P_IPV6)) {
+ proto = ipv6_hdr(skb)->nexthdr;
+ }
+ if (proto == IPPROTO_TCP) {
+ flags |= BNA_TXQ_WI_CF_TCP_CKSUM;
+ txqent->hdr.wi.l4_hdr_size_n_offset =
+ htons(BNA_TXQ_WI_L4_HDR_N_OFFSET
+ (0, skb_transport_offset(skb)));
+ bnad->stats.tcpcsum_offload++;
+ BUG_ON(!(skb_headlen(skb)) >=
+ skb_transport_offset(skb) + tcp_hdrlen(skb));
+ } else if (proto == IPPROTO_UDP) {
+ flags |= BNA_TXQ_WI_CF_UDP_CKSUM;
+ txqent->hdr.wi.l4_hdr_size_n_offset =
+ htons(BNA_TXQ_WI_L4_HDR_N_OFFSET
+ (0, skb_transport_offset(skb)));
+ bnad->stats.udpcsum_offload++;
+ BUG_ON(!(skb_headlen(skb)) >=
+ skb_transport_offset(skb) +
+ sizeof(struct udphdr));
+ } else {
+ err = skb_checksum_help(skb);
+ bnad->stats.csum_help++;
+ if (err) {
+ dev_kfree_skb(skb);
+ bnad->stats.csum_help_err++;
+ return NETDEV_TX_OK;
+ }
+ }
+ } else {
+ txqent->hdr.wi.lso_mss = 0;
+ txqent->hdr.wi.l4_hdr_size_n_offset = 0;
+ }
+
+ txqent->hdr.wi.flags = htons(flags);
+
+ txqent->hdr.wi.frame_length = htonl(skb->len);
+
+ unmap_q->unmap_array[unmap_prod].skb = skb;
+ BUG_ON(!(skb_headlen(skb) <= BNAD_TX_MAX_DATA_PER_VECTOR));
+ txqent->vector[vect_id].length = htons(skb_headlen(skb));
+ dma_addr =
+ pci_map_single(bnad->pcidev, skb->data, skb_headlen(skb),
+ PCI_DMA_TODEVICE);
+ pci_unmap_addr_set(&unmap_q->unmap_array[unmap_prod], dma_addr,
+ dma_addr);
+
+ BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[vect_id].host_addr);
+ BNA_QE_INDX_ADD(unmap_prod, 1, unmap_q->q_depth);
+
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
+
+ if (++vect_id == BNAD_TX_MAX_VECTORS_PER_WI) {
+ vect_id = 0;
+ if (--wi_range)
+ txqent++;
+ else {
+ BNA_QE_INDX_ADD(txq_prod, wis_used,
+ txq->q.q_depth);
+ wis_used = 0;
+ BNA_TXQ_QPGE_PTR_GET(txq_prod, &txq->q, txqent,
+ wi_range);
+ BUG_ON(!(wi_range &&
+ wi_range <= txq->q.q_depth));
+ }
+ wis_used++;
+ txqent->hdr.wi_ext.opcode = htons(BNA_TXQ_WI_EXTENSION);
+ }
+
+ txqent->vector[vect_id].length = htons(frag->size);
+ dma_addr =
+ pci_map_page(bnad->pcidev, frag->page,
+ frag->page_offset, frag->size,
+ PCI_DMA_TODEVICE);
+ pci_unmap_addr_set(&unmap_q->unmap_array[unmap_prod], dma_addr,
+ dma_addr);
+ BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[vect_id].host_addr);
+ BNA_QE_INDX_ADD(unmap_prod, 1, unmap_q->q_depth);
+ }
+
+ unmap_q->producer_index = unmap_prod;
+ BNA_QE_INDX_ADD(txq_prod, wis_used, txq->q.q_depth);
+ txq->q.producer_index = txq_prod;
+
+ smp_mb();
+ bna_txq_prod_indx_doorbell(txq);
+
+ if ((u16) (*txqinfo->hw_consumer_index) != txq->q.consumer_index)
+ tasklet_schedule(&bnad->tx_free_tasklet);
+
+ return NETDEV_TX_OK;
+}
+
+struct net_device_stats
+*bnad_get_stats(struct net_device *netdev)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+ struct net_device_stats *net_stats = &bnad->net_stats;
+ struct cna_stats_mac_rx *rxstats = &bnad->hw_stats->mac_rx_stats;
+ struct cna_stats_mac_tx *txstats = &bnad->hw_stats->mac_tx_stats;
+ int i;
+
+ memset(net_stats, 0, sizeof(*net_stats));
+ if (bnad->rxq_table) {
+ for (i = 0; i < bnad->rxq_num; i++) {
+ net_stats->rx_packets += bnad->rxq_table[i].rx_packets;
+ net_stats->rx_bytes += bnad->rxq_table[i].rx_bytes;
+ }
+ }
+ if (bnad->txq_table) {
+ for (i = 0; i < bnad->txq_num; i++) {
+ net_stats->tx_packets += bnad->txq_table[i].tx_packets;
+ net_stats->tx_bytes += bnad->txq_table[i].tx_bytes;
+ }
+ }
+ net_stats->rx_errors =
+ rxstats->rx_fcs_error + rxstats->rx_alignment_error +
+ rxstats->rx_frame_length_error + rxstats->rx_code_error +
+ rxstats->rx_undersize;
+ net_stats->tx_errors = txstats->tx_fcs_error + txstats->tx_undersize;
+ net_stats->rx_dropped = rxstats->rx_drop;
+ net_stats->tx_dropped = txstats->tx_drop;
+ net_stats->multicast = rxstats->rx_multicast;
+ net_stats->collisions = txstats->tx_total_collision;
+
+ net_stats->rx_length_errors = rxstats->rx_frame_length_error;
+ net_stats->rx_crc_errors = rxstats->rx_fcs_error;
+ net_stats->rx_frame_errors = rxstats->rx_alignment_error;
+ /* recv'r fifo overrun */
+ net_stats->rx_fifo_errors = bnad->hw_stats->rxf_stats[0].frame_drops;
+
+ return net_stats;
+}
+
+/* Should be called with priv_lock held. */
+static void bnad_set_rx_mode_locked(struct net_device *netdev)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+ int err;
+
+ if (netdev->flags & IFF_PROMISC) {
+ bna_rxf_promiscuous(bnad->priv, BNAD_RX_FUNC_ID, BNA_ENABLE);
+ bnad->config |= BNAD_CF_PROMISC;
+ } else {
+ bna_rxf_promiscuous(bnad->priv, BNAD_RX_FUNC_ID, BNA_DISABLE);
+ bnad->config &= ~BNAD_CF_PROMISC;
+ }
+
+ if (netdev->flags & IFF_ALLMULTI) {
+ if (!(bnad->config & BNAD_CF_ALLMULTI)) {
+ bna_rxf_mcast_filter(bnad->priv, BNAD_RX_FUNC_ID,
+ BNA_DISABLE);
+ bnad->config |= BNAD_CF_ALLMULTI;
+ }
+ } else {
+ if (bnad->config & BNAD_CF_ALLMULTI) {
+ bna_rxf_mcast_filter(bnad->priv, BNAD_RX_FUNC_ID,
+ BNA_ENABLE);
+ bnad->config &= ~BNAD_CF_ALLMULTI;
+ }
+ }
+
+ if (netdev->mc_count) {
+ struct mac *mcaddr_list;
+ struct dev_mc_list *mc;
+ int i;
+
+ mcaddr_list =
+ kcalloc((netdev->mc_count + 1), sizeof(struct mac),
+ GFP_ATOMIC);
+ if (!mcaddr_list)
+ return;
+
+ mcaddr_list[0] = bna_bcast_addr;
+
+ mc = netdev->mc_list;
+ for (i = 1; mc && i < netdev->mc_count + 1; i++, mc = mc->next)
+ memcpy(&mcaddr_list[i], mc->dmi_addr,
+ sizeof(struct mac));
+
+ err = bna_rxf_mcast_mac_set_list(bnad->priv, BNAD_RX_FUNC_ID,
+ (const struct mac *)mcaddr_list,
+ netdev->mc_count + 1);
+
+ kfree(mcaddr_list);
+ }
+}
+
+static void bnad_set_rx_mode(struct net_device *netdev)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+
+ spin_lock_irq(&bnad->priv_lock);
+ bnad_set_rx_mode_locked(netdev);
+ spin_unlock_irq(&bnad->priv_lock);
+}
+
+/* Should be called with conf_lock held. */
+int bnad_ucast_mac(struct bnad *bnad, unsigned int rxf_id, u8 * mac_ptr,
+ unsigned int cmd)
+{
+ int err = 0;
+ enum bna_status(*ucast_mac_func) (struct bna_dev *bna_dev,
+ unsigned int rxf_id, const struct mac *mac_addr_ptr) = NULL;
+
+ WARN_ON(in_interrupt());
+ if (!is_valid_ether_addr(mac_ptr))
+ return -EINVAL;
+
+ switch (cmd) {
+ case BNAD_UCAST_MAC_SET:
+ ucast_mac_func = bna_rxf_ucast_mac_set;
+ break;
+ case BNAD_UCAST_MAC_ADD:
+ ucast_mac_func = bna_rxf_ucast_mac_add;
+ break;
+ case BNAD_UCAST_MAC_DEL:
+ ucast_mac_func = bna_rxf_ucast_mac_del;
+ break;
+ }
+
+ init_completion(&bnad->ucast_comp);
+ spin_lock_irq(&bnad->priv_lock);
+ err = ucast_mac_func(bnad->priv, rxf_id, (const struct mac *)mac_ptr);
+ spin_unlock_irq(&bnad->priv_lock);
+ if (err) {
+ if (err == BNA_AGAIN)
+ err = 0;
+ goto ucast_mac_exit;
+ }
+ wait_for_completion(&bnad->ucast_comp);
+ err = bnad->ucast_comp_status;
+ if (err == BFI_LL_CMD_NOT_EXEC)
+ err = 0;
+
+ucast_mac_exit:
+ if (err) {
+ pr_info("%s unicast MAC address command %d failed: %d",
+ bnad->netdev->name, cmd, err);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* Should be called with conf_lock held. */
+static int bnad_set_mac_address_locked(struct net_device *netdev, void *addr)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+ struct sockaddr *sa = (struct sockaddr *)addr;
+ int err;
+
+ if (!is_valid_ether_addr(sa->sa_data))
+ return -EADDRNOTAVAIL;
+
+ err = bnad_ucast_mac(bnad, BNAD_RX_FUNC_ID, (u8 *) sa->sa_data,
+ BNAD_UCAST_MAC_SET);
+ if (err)
+ return err;
+
+ memcpy(netdev->dev_addr, sa->sa_data, netdev->addr_len);
+ return 0;
+}
+
+static int bnad_set_mac_address(struct net_device *netdev, void *addr)
+{
+ int err = 0;
+ struct bnad *bnad = netdev_priv(netdev);
+
+ mutex_lock(&bnad->conf_mutex);
+ err = bnad_set_mac_address_locked(netdev, addr);
+ mutex_unlock(&bnad->conf_mutex);
+ return err;
+
+}
+
+static int bnad_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ int err = 0;
+ struct bnad *bnad = netdev_priv(netdev);
+
+ WARN_ON(in_interrupt());
+
+ if (new_mtu + ETH_HLEN < ETH_ZLEN || new_mtu > BNAD_JUMBO_MTU)
+ return -EINVAL;
+
+ mutex_lock(&bnad->conf_mutex);
+ netdev->mtu = new_mtu;
+ err = bnad_sw_reset_locked(netdev);
+ mutex_unlock(&bnad->conf_mutex);
+
+ return err;
+}
+
+static void bnad_vlan_rx_register(struct net_device *netdev,
+ struct vlan_group *grp)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+
+ mutex_lock(&bnad->conf_mutex);
+ bnad->vlangrp = grp;
+ mutex_unlock(&bnad->conf_mutex);
+}
+
+static void bnad_vlan_rx_add_vid(struct net_device *netdev, unsigned short vid)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+
+ mutex_lock(&bnad->conf_mutex);
+ spin_lock_irq(&bnad->priv_lock);
+ if (bnad->state == BNAD_S_OPEN && !BNAD_NOT_READY(bnad))
+ bna_rxf_vlan_add(bnad->priv, BNAD_RX_FUNC_ID,
+ (unsigned int)vid);
+ spin_unlock_irq(&bnad->priv_lock);
+ mutex_unlock(&bnad->conf_mutex);
+}
+
+static void bnad_vlan_rx_kill_vid(struct net_device *netdev,
+ unsigned short vid)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+
+ mutex_lock(&bnad->conf_mutex);
+ spin_lock_irq(&bnad->priv_lock);
+ if (bnad->state == BNAD_S_OPEN && !BNAD_NOT_READY(bnad))
+ bna_rxf_vlan_del(bnad->priv, BNAD_RX_FUNC_ID,
+ (unsigned int)vid);
+ spin_unlock_irq(&bnad->priv_lock);
+ mutex_unlock(&bnad->conf_mutex);
+}
+
+/* Should be called with priv_lock held. */
+static void bnad_reconfig_vlans(struct bnad *bnad)
+{
+ u16 vlan_id;
+
+ bna_rxf_vlan_del_all(bnad->priv, BNAD_RX_FUNC_ID);
+ if (bnad->vlangrp) {
+ for (vlan_id = 0; vlan_id < VLAN_GROUP_ARRAY_LEN; vlan_id++) {
+ if (vlan_group_get_device(bnad->vlangrp, vlan_id))
+ bna_rxf_vlan_add(bnad->priv, BNAD_RX_FUNC_ID,
+ (unsigned int)vlan_id);
+ }
+ }
+}
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void bnad_netpoll(struct net_device *netdev)
+{
+ struct bnad *bnad = netdev_priv(netdev);
+ struct bnad_cq_info *cqinfo;
+ int i;
+
+ if (!(bnad->config & BNAD_CF_MSIX)) {
+ disable_irq(bnad->pcidev->irq);
+ bnad_isr(bnad->pcidev->irq, netdev);
+ enable_irq(bnad->pcidev->irq);
+ } else {
+ for (i = 0; i < bnad->cq_num; i++) {
+ cqinfo = &bnad->cq_table[i];
+ if (likely(napi_schedule_prep(&cqinfo->napi))) {
+ bnad_disable_rx_irq(bnad, cqinfo);
+ __napi_schedule(&cqinfo->napi);
+ }
+ }
+ }
+}
+#endif
+
+static void bnad_q_num_init(struct bnad *bnad, uint rxqsets)
+{
+ bnad->txq_num = BNAD_TXQ_NUM;
+ bnad->txf_num = 1;
+
+ if (bnad->config & BNAD_CF_MSIX) {
+ if (rxqsets) {
+ bnad->cq_num = rxqsets;
+ if (bnad->cq_num > BNAD_MAX_CQS)
+ bnad->cq_num = BNAD_MAX_CQS;
+ } else
+ bnad->cq_num =
+ min((uint) num_online_cpus(),
+ (uint) BNAD_MAX_RXQSETS_USED);
+ if (!BNA_POWER_OF_2(bnad->cq_num))
+ BNA_TO_POWER_OF_2(bnad->cq_num);
+ bnad->rxq_num = bnad->cq_num * bnad_rxqs_per_cq;
+
+ bnad->rxf_num = 1;
+ bnad->msix_num =
+ bnad->txq_num + bnad->cq_num +
+ BNAD_MSIX_ERR_MAILBOX_NUM;
+ } else {
+ bnad->cq_num = 1;
+ bnad->rxq_num = bnad->cq_num * bnad_rxqs_per_cq;
+ bnad->rxf_num = 1;
+ bnad->msix_num = 0;
+ }
+}
+
+static void bnad_enable_msix(struct bnad *bnad)
+{
+ int i, ret;
+
+ if (!(bnad->config & BNAD_CF_MSIX) || bnad->msix_table)
+ return;
+
+ bnad->msix_table =
+ kcalloc(bnad->msix_num, sizeof(struct msix_entry), GFP_KERNEL);
+ if (!bnad->msix_table)
+ goto intx_mode;
+
+ for (i = 0; i < bnad->msix_num; i++)
+ bnad->msix_table[i].entry = i;
+
+ ret = pci_enable_msix(bnad->pcidev, bnad->msix_table, bnad->msix_num);
+ if (ret > 0) {
+ /* Not enough MSI-X vectors. */
+ int rxqsets = ret;
+
+ dev_err(&bnad->pcidev->dev,
+ "Tried to get %d MSI-X vectors, only got %d\n",
+ bnad->msix_num, ret);
+ BNA_TO_POWER_OF_2(rxqsets);
+ while (bnad->msix_num > ret && rxqsets) {
+ bnad_q_num_init(bnad, rxqsets);
+ rxqsets >>= 1;
+ }
+ if (bnad->msix_num <= ret) {
+ ret = pci_enable_msix(bnad->pcidev, bnad->msix_table,
+ bnad->msix_num);
+ if (ret) {
+ dev_err(&bnad->pcidev->dev,
+ "Enabling MSI-X failed: %d\n", ret);
+ goto intx_mode;
+ }
+ } else {
+ dev_err(&bnad->pcidev->dev,
+ "Enabling MSI-X failed: limited (%d) vectors\n",
+ ret);
+ goto intx_mode;
+ }
+ } else if (ret < 0) {
+ dev_err(&bnad->pcidev->dev, "Enabling MSI-X failed: %d\n", ret);
+ goto intx_mode;
+ }
+
+ dev_info(&bnad->pcidev->dev,
+ "Enabling MSI-X succeeded with %d vectors, %s\n",
+ bnad->msix_num,
+ (bnad->cq_num > 1) ? "RSS is enabled" : "RSS is not enabled");
+ return;
+
+intx_mode:
+ dev_warn(&bnad->pcidev->dev, "Switching to INTx mode with no RSS\n");
+
+ kfree(bnad->msix_table);
+ bnad->msix_table = NULL;
+
+ bnad->config &= ~BNAD_CF_MSIX;
+ bnad_q_num_init(bnad, 0);
+}
+
+static void bnad_disable_msix(struct bnad *bnad)
+{
+ if (bnad->config & BNAD_CF_MSIX) {
+ pci_disable_msix(bnad->pcidev);
+ kfree(bnad->msix_table);
+ bnad->msix_table = NULL;
+ bnad->config &= ~BNAD_CF_MSIX;
+ }
+}
+
+static void bnad_error(struct bnad *bnad)
+{
+
+ spin_lock_irq(&bnad->priv_lock);
+
+ if (!test_and_clear_bit(BNAD_F_HWERROR, &bnad->flags)) {
+ spin_unlock_irq(&bnad->priv_lock);
+ return;
+ }
+ spin_unlock_irq(&bnad->priv_lock);
+
+ switch (bnad->state) {
+ case BNAD_S_INIT:
+ bnad->state = BNAD_S_INIT_DOWN;
+ break;
+ case BNAD_S_OPEN:
+ bnad->state = BNAD_S_OPEN_DOWN;
+ bnad_stop_data_path(bnad, 1);
+ bnad_cleanup(bnad);
+ break;
+ case BNAD_S_START:
+ case BNAD_S_INIT_DISABLING:
+ case BNAD_S_OPENING:
+ case BNAD_S_OPEN_DISABLING:
+ case BNAD_S_CLOSING:
+ BUG_ON(1);
+ /* fall through */
+ default:
+ break;
+ }
+}
+
+static void bnad_resume_after_reset(struct bnad *bnad)
+{
+ int err;
+ struct net_device *netdev = bnad->netdev;
+
+ switch (bnad->state) {
+ case BNAD_S_INIT_DOWN:
+ bnad->state = BNAD_S_INIT;
+
+ bna_port_mac_get(bnad->priv, (struct mac *)netdev->perm_addr);
+ if (is_zero_ether_addr(netdev->dev_addr))
+ memcpy(netdev->dev_addr, netdev->perm_addr,
+ netdev->addr_len);
+ break;
+ case BNAD_S_OPEN_DOWN:
+ err = bnad_enable_locked(bnad);
+ if (err) {
+ pr_info(
+ "%s bnad_enable failed after reset: %d",
+ bnad->netdev->name, err);
+ } else {
+ bnad_port_admin_locked(bnad, BNA_ENABLE);
+ }
+ break;
+ case BNAD_S_START:
+ case BNAD_S_INIT_DISABLING:
+ case BNAD_S_OPENING:
+ case BNAD_S_OPEN:
+ case BNAD_S_OPEN_DISABLING:
+ case BNAD_S_CLOSING:
+ BUG_ON(1);
+ /* fall through */
+ default:
+ break;
+ }
+
+}
+
+static void bnad_tx_free_tasklet(unsigned long bnad_ptr)
+{
+ struct bnad *bnad = (struct bnad *)bnad_ptr;
+ struct bnad_txq_info *txqinfo;
+ struct bna_txq *txq;
+ unsigned int acked;
+
+ txqinfo = &bnad->txq_table[0];
+ txq = &txqinfo->txq;
+
+ if ((u16) (*txqinfo->hw_consumer_index) != txq->q.consumer_index &&
+ !test_and_set_bit(BNAD_TXQ_FREE_SENT, &txqinfo->flags)) {
+ acked = bnad_free_txbufs(txqinfo,
+ (u16) (*txqinfo->
+ hw_consumer_index));
+ bna_ib_ack(bnad->priv, &txqinfo->ib, acked);
+ smp_mb__before_clear_bit();
+ clear_bit(BNAD_TXQ_FREE_SENT, &txqinfo->flags);
+ }
+}
+
+static void bnad_cee_reconfig_prio(struct bnad *bnad, u8 cee_linkup,
+ unsigned int prio)
+{
+
+ if (prio != bnad->curr_priority)
+ bnad_sw_reset_locked_internal(bnad->netdev);
+ else {
+ spin_lock_irq(&bnad->priv_lock);
+ if (!cee_linkup)
+ clear_bit(BNAD_F_CEE_RUNNING, &bnad->flags);
+ else
+ set_bit(BNAD_F_CEE_RUNNING, &bnad->flags);
+ spin_unlock_irq(&bnad->priv_lock);
+ }
+}
+
+static void bnad_link_state_notify(struct bnad *bnad)
+{
+ struct net_device *netdev = bnad->netdev;
+ enum bnad_link_state link_state;
+ u8 cee_linkup;
+ unsigned int prio = 0;
+
+ if (bnad->state != BNAD_S_OPEN) {
+ pr_info("%s link up in state %d", netdev->name,
+ bnad->state);
+ return;
+ }
+
+ spin_lock_irq(&bnad->priv_lock);
+ link_state = bnad->link_state;
+ cee_linkup = bnad->cee_linkup;
+ if (cee_linkup)
+ prio = bnad->priority;
+ spin_unlock_irq(&bnad->priv_lock);
+
+ if (link_state == BNAD_LS_UP) {
+ bnad_cee_reconfig_prio(bnad, cee_linkup, prio);
+ if (!netif_carrier_ok(netdev)) {
+ netif_carrier_on(netdev);
+ netif_wake_queue(netdev);
+ bnad->stats.netif_queue_wakeup++;
+ }
+ } else {
+ if (netif_carrier_ok(netdev)) {
+ netif_carrier_off(netdev);
+ bnad->stats.netif_queue_stop++;
+ }
+ }
+}
+
+static void bnad_work(struct work_struct *work)
+{
+ struct bnad *bnad = container_of(work, struct bnad, work);
+ unsigned long work_flags;
+
+ mutex_lock(&bnad->conf_mutex);
+
+ spin_lock_irq(&bnad->priv_lock);
+ work_flags = bnad->work_flags;
+ bnad->work_flags = 0;
+ spin_unlock_irq(&bnad->priv_lock);
+
+ if (work_flags & BNAD_WF_ERROR)
+ bnad_error(bnad);
+ if (work_flags & BNAD_WF_RESETDONE)
+ bnad_resume_after_reset(bnad);
+
+ if (work_flags & BNAD_WF_LS_NOTIFY)
+ bnad_link_state_notify(bnad);
+
+ mutex_unlock(&bnad->conf_mutex);
+}
+
+static void bnad_stats_timeo(unsigned long data)
+{
+ struct bnad *bnad = (struct bnad *)data;
+ int i;
+ struct bnad_rxq_info *rxqinfo;
+
+ spin_lock_irq(&bnad->priv_lock);
+ bna_stats_get(bnad->priv);
+ spin_unlock_irq(&bnad->priv_lock);
+
+ if (bnad->rx_dyn_coalesce_on) {
+ u8 cls_timer;
+ struct bnad_cq_info *cq;
+ for (i = 0; i < bnad->cq_num; i++) {
+ cq = &bnad->cq_table[i];
+
+ if ((cq->pkt_rate.small_pkt_cnt == 0) &&
+ (cq->pkt_rate.large_pkt_cnt == 0))
+ continue;
+
+ cls_timer =
+ bna_calc_coalescing_timer(bnad->priv,
+ &cq->pkt_rate);
+
+ /* For NAPI version, coalescing timer need to stored */
+ cq->rx_coalescing_timeo = cls_timer;
+
+ bna_ib_coalescing_timer_set(bnad->priv, &cq->ib,
+ cls_timer);
+ }
+ }
+
+ for (i = 0; i < bnad->rxq_num; i++) {
+ rxqinfo = &bnad->rxq_table[i];
+ if (!
+ (BNA_QE_IN_USE_CNT
+ (&rxqinfo->skb_unmap_q,
+ rxqinfo->skb_unmap_q.
+ q_depth) >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT)) {
+ if (test_and_set_bit(BNAD_RXQ_REFILL, &rxqinfo->flags))
+ continue;
+ bnad_alloc_rxbufs(rxqinfo);
+ smp_mb__before_clear_bit();
+ clear_bit(BNAD_RXQ_REFILL, &rxqinfo->flags);
+ }
+ }
+}
+
+static void
+bnad_free_ioc_mem(struct bnad *bnad)
+{
+ enum bna_dma_mem_type i;
+
+ for (i = 0; i < BNA_MEM_T_MAX; i++) {
+ if (!bnad->ioc_meminfo[i].len)
+ continue;
+ if (bnad->ioc_meminfo[i].kva && bnad->ioc_meminfo[i].dma)
+ pci_free_consistent(bnad->pcidev,
+ bnad->ioc_meminfo[i].len,
+ bnad->ioc_meminfo[i].kva,
+ *(dma_addr_t *) &bnad->
+ ioc_meminfo[i].dma);
+ else if (bnad->ioc_meminfo[i].kva)
+ vfree(bnad->ioc_meminfo[i].kva);
+ bnad->ioc_meminfo[i].kva = NULL;
+ }
+}
+
+/* The following IOC callback functions are called with priv_lock held. */
+
+void
+bna_iocll_enable_cbfn(void *arg, enum bfa_status error)
+{
+ struct bnad *bnad = arg;
+
+ if (!error) {
+ bnad->work_flags &= ~BNAD_WF_LS_NOTIFY;
+ bnad->work_flags |= BNAD_WF_RESETDONE;
+
+ if (bnad->state != BNAD_S_UNLOADING)
+ schedule_work(&bnad->work);
+ }
+
+ bnad->ioc_comp_status = error;
+ complete(&bnad->ioc_comp);
+}
+
+void
+bna_iocll_disable_cbfn(void *arg)
+{
+ struct bnad *bnad = arg;
+
+ complete(&bnad->ioc_comp);
+}
+
+void
+bna_iocll_hbfail_cbfn(void *arg)
+{
+ struct bnad *bnad = arg;
+
+ bnad_hw_error(bnad, BFA_STATUS_IOC_FAILURE);
+}
+
+void
+bna_iocll_reset_cbfn(void *arg)
+{
+ struct bnad *bnad = arg;
+ u32 int_status, int_mask;
+ unsigned int irq;
+
+ /* Clear the status */
+ bna_intr_status_get(bnad->priv, &int_status);
+
+ if (bnad->config & BNAD_CF_MSIX) {
+ if (test_and_clear_bit(BNAD_F_MBOX_IRQ_DISABLED,
+ &bnad->flags)) {
+ irq = bnad->msix_table[bnad->msix_num - 1].vector;
+ enable_irq(irq);
+ }
+ }
+
+ int_mask = ~(__LPU2HOST_MBOX_MASK_BITS | __ERROR_MASK_BITS);
+ bna_intx_enable(bnad->priv, int_mask);
+}
+
+s32
+bnad_cee_attach(struct bnad *bnad)
+{
+ u8 *dma_kva;
+ dma_addr_t dma_pa;
+ struct bfa_cee *cee = &bnad->cee;
+
+ memset(cee, 0, sizeof(struct bfa_cee));
+
+ /* Allocate memory for dma */
+ dma_kva =
+ pci_alloc_consistent(bnad->pcidev, bfa_cee_meminfo(), &dma_pa);
+ if (dma_kva == NULL)
+ return -ENOMEM;
+
+ ((struct bna_dev *) bnad->priv)->cee = cee;
+
+ bnad->cee_cbfn.get_attr_cbfn = bnad_cee_get_attr_cb;
+ bnad->cee_cbfn.get_stats_cbfn = bnad_cee_get_stats_cb;
+ bnad->cee_cbfn.reset_stats_cbfn = bnad_cee_reset_stats_cb;
+ bnad->cee_cbfn.reset_stats_cbfn = NULL;
+
+ /* Invoke cee attach function */
+ bfa_cee_attach(cee, &bnad->priv->ioc, bnad, bnad->trcmod, bnad->logmod);
+ bfa_cee_mem_claim(cee, dma_kva, dma_pa);
+ return 0;
+}
+
+static void bnad_cee_detach(struct bnad *bnad)
+{
+ struct bfa_cee *cee = &bnad->cee;
+
+ if (cee->attr_dma.kva) {
+ pci_free_consistent(bnad->pcidev, bfa_cee_meminfo(),
+ cee->attr_dma.kva, cee->attr_dma.pa);
+ }
+}
+
+static int bnad_priv_init(struct bnad *bnad)
+{
+ dma_addr_t dma_addr;
+ struct bna_dma_addr bna_dma_addr;
+ int err = 0, i;
+ struct bfa_pcidev pcidev_info;
+ u32 intr_mask;
+
+ if (bnad_msix)
+ bnad->config |= BNAD_CF_MSIX;
+ bnad_q_num_init(bnad, bnad_rxqsets_used);
+
+ bnad->work_flags = 0;
+ INIT_WORK(&bnad->work, bnad_work);
+
+ tasklet_init(&bnad->tx_free_tasklet, bnad_tx_free_tasklet,
+ (unsigned long)bnad);
+
+ setup_timer(&bnad->stats_timer, bnad_stats_timeo,
+ (unsigned long)bnad);
+
+ bnad->tx_coalescing_timeo = BNAD_TX_COALESCING_TIMEO;
+ bnad->tx_interpkt_count = BNAD_TX_INTERPKT_COUNT;
+
+ bnad->rx_coalescing_timeo = BNAD_RX_COALESCING_TIMEO;
+ bnad->rx_interpkt_count = BNAD_RX_INTERPKT_COUNT;
+ bnad->rx_interpkt_timeo = BNAD_RX_INTERPKT_TIMEO;
+
+ bnad->rx_dyn_coalesce_on = true;
+
+ bnad->rx_csum = 1;
+ bnad->pause_config.tx_pause = 0;
+ bnad->pause_config.rx_pause = 0;
+
+ bnad->priv = kzalloc(bna_get_handle_size(), GFP_KERNEL);
+ if (!bnad->priv) {
+ printk(KERN_ERR "port %u failed allocating memory for bna\n",
+ bnad->bna_id);
+ err = -ENOMEM;
+ goto free_trcmod;
+ }
+ bnad->priv_stats =
+ pci_alloc_consistent(bnad->pcidev, BNA_HW_STATS_SIZE,
+ &dma_addr);
+ if (!bnad->priv_stats) {
+ printk(KERN_ERR
+ "port %u failed allocating memory for bna stats\n",
+ bnad->bna_id);
+ err = -ENOMEM;
+ goto free_priv_mem;
+ }
+ pci_unmap_addr_set(bnad, priv_stats_dma, dma_addr);
+
+ BNA_SET_DMA_ADDR(dma_addr, &bna_dma_addr);
+ bna_init(bnad->priv, (void *)bnad->bar0, bnad->priv_stats, bna_dma_addr,
+ bnad->trcmod, bnad->logmod);
+ bna_all_stats_get(bnad->priv, &bnad->hw_stats);
+
+ spin_lock_init(&bnad->priv_lock);
+ mutex_init(&bnad->conf_mutex);
+ bnad->priv_cbfn.ucast_set_cb = bnad_ucast_set_cb;
+ bnad->priv_cbfn.txq_stop_cb = bnad_q_stop_cb;
+ bnad->priv_cbfn.rxq_stop_cb = bnad_q_stop_cb;
+ bnad->priv_cbfn.link_up_cb = bnad_link_up_cb;
+ bnad->priv_cbfn.link_down_cb = bnad_link_down_cb;
+ bnad->priv_cbfn.stats_get_cb = bnad_stats_get_cb;
+ bnad->priv_cbfn.hw_error_cb = bnad_hw_error_cb;
+ bnad->priv_cbfn.lldp_get_cfg_cb = bnad_lldp_get_cfg_cb;
+
+ bna_register_callback(bnad->priv, &bnad->priv_cbfn, bnad);
+
+ bna_iocll_meminfo(bnad->priv, bnad->ioc_meminfo);
+ for (i = 0; i < BNA_MEM_T_MAX; i++) {
+ if (!bnad->ioc_meminfo[i].len)
+ continue;
+ switch (i) {
+ case BNA_KVA_MEM_T_FWTRC:
+ bnad->ioc_meminfo[i].kva =
+ vmalloc(bnad->ioc_meminfo[i].len);
+ break;
+ default:
+ bnad->ioc_meminfo[i].kva =
+ pci_alloc_consistent(bnad->pcidev,
+ bnad->ioc_meminfo[i].len,
+ (dma_addr_t *) &bnad->
+ ioc_meminfo[i].dma);
+
+ break;
+ }
+ if (!bnad->ioc_meminfo[i].kva) {
+ printk(KERN_ERR
+ "port %u failed allocating %u "
+ "bytes memory for IOC\n",
+ bnad->bna_id, bnad->ioc_meminfo[i].len);
+ err = -ENOMEM;
+ goto free_ioc_mem;
+ } else
+ memset(bnad->ioc_meminfo[i].kva, 0,
+ bnad->ioc_meminfo[i].len);
+ }
+
+ pcidev_info.pci_slot = PCI_SLOT(bnad->pcidev->devfn);
+ pcidev_info.pci_func = PCI_FUNC(bnad->pcidev->devfn);
+ pcidev_info.device_id = bnad->pcidev->device;
+ pcidev_info.pci_bar_kva = bnad->bar0;
+ bna_iocll_attach(bnad->priv, bnad, bnad->ioc_meminfo, &pcidev_info,
+ bnad->trcmod, NULL, bnad->logmod);
+
+ err = bnad_cee_attach(bnad);
+ if (err) {
+ printk(KERN_ERR "port %u cee_attach failed: %d\n", bnad->bna_id,
+ err);
+ goto iocll_detach;
+ }
+
+ if (bnad->config & BNAD_CF_MSIX)
+ bnad_enable_msix(bnad);
+ else
+ dev_info(&bnad->pcidev->dev, "Working in INTx mode, no RSS\n");
+ bna_intx_disable(bnad->priv, &intr_mask);
+ err = bnad_request_mbox_irq(bnad);
+ if (err)
+ goto disable_msix;
+
+ mutex_lock(&bnad->conf_mutex);
+ bnad->state = BNAD_S_START;
+
+ init_completion(&bnad->ioc_comp);
+ spin_lock_irq(&bnad->priv_lock);
+ bna_iocll_enable(bnad->priv);
+ spin_unlock_irq(&bnad->priv_lock);
+
+ wait_for_completion(&bnad->ioc_comp);
+
+ if (!bnad->ioc_comp_status) {
+ bnad->state = BNAD_S_INIT;
+ bna_port_mac_get(bnad->priv,
+ (struct mac *)bnad->netdev->perm_addr);
+ } else {
+ bnad->state = BNAD_S_INIT_DOWN;
+ }
+ mutex_unlock(&bnad->conf_mutex);
+
+ return 0;
+
+disable_msix:
+ bnad_disable_msix(bnad);
+ bnad_cee_detach(bnad);
+iocll_detach:
+ bna_iocll_detach(bnad->priv);
+free_ioc_mem:
+ bnad_free_ioc_mem(bnad);
+ pci_free_consistent(bnad->pcidev, BNA_HW_STATS_SIZE, bnad->priv_stats,
+ pci_unmap_addr(bnad, priv_stats_dma));
+ bnad->priv_stats = NULL;
+free_priv_mem:
+ kfree(bnad->priv);
+ bnad->priv = NULL;
+free_trcmod:
+ kfree(bnad->trcmod);
+ bnad->trcmod = NULL;
+
+ return err;
+}
+
+static void bnad_priv_uninit(struct bnad *bnad)
+{
+ int i;
+ enum bna_status err;
+
+ if (bnad->priv) {
+
+ init_completion(&bnad->ioc_comp);
+
+ for (i = 0; i < 10; i++) {
+ spin_lock_irq(&bnad->priv_lock);
+ err = bna_iocll_disable(bnad->priv);
+ spin_unlock_irq(&bnad->priv_lock);
+ if (!err)
+ break;
+ msleep(1000);
+ }
+ if (err) {
+ /* Probably firmware crashed. */
+ pr_info(
+ "bna_iocll_disable failed, "
+ "clean up and try again");
+ spin_lock_irq(&bnad->priv_lock);
+ bna_cleanup(bnad->priv);
+ err = bna_iocll_disable(bnad->priv);
+ spin_unlock_irq(&bnad->priv_lock);
+ }
+ wait_for_completion(&bnad->ioc_comp);
+
+ pr_info("port %u IOC is disabled", bnad->bna_id);
+
+ bnad->state = BNAD_S_UNLOADING;
+
+ del_timer_sync(&bnad->priv->ioc.ioc_timer);
+ del_timer_sync(&bnad->priv->ioc.hb_timer);
+ del_timer_sync(&bnad->priv->ioc.sem_timer);
+
+ bnad_free_ioc_mem(bnad);
+ bna_iocll_detach(bnad->priv);
+
+ mutex_destroy(&bnad->conf_mutex);
+
+ flush_scheduled_work();
+ bnad_free_mbox_irq(bnad);
+
+ bnad_disable_msix(bnad);
+
+ if (bnad->priv_stats) {
+ pci_free_consistent(bnad->pcidev, BNA_HW_STATS_SIZE,
+ bnad->priv_stats,
+ pci_unmap_addr(bnad,
+ priv_stats_dma));
+ bnad->priv_stats = NULL;
+ }
+ kfree(bnad->priv);
+ bnad->priv = NULL;
+ }
+ kfree(bnad->trcmod);
+ bnad->trcmod = NULL;
+}
+
+DEFINE_PCI_DEVICE_TABLE(bnad_pci_id_table) = {
+ {
+ PCI_DEVICE(PCI_VENDOR_ID_BROCADE,
+ PCI_DEVICE_ID_BROCADE_CATAPULT),
+ .class = PCI_CLASS_NETWORK_ETHERNET << 8,
+ .class_mask = 0xffff00
+ }, {0, }
+};
+
+MODULE_DEVICE_TABLE(pci, bnad_pci_id_table);
+
+static int __devinit bnad_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *pcidev_id)
+{
+ int err, using_dac;
+ struct net_device *netdev;
+ struct bnad *bnad;
+ unsigned long mmio_start, mmio_len;
+ static u32 bna_id;
+
+ printk(KERN_INFO "bnad_pci_probe : (0x%p, 0x%p) PCI Func : (%d)\n",
+ pdev, pcidev_id, PCI_FUNC(pdev->devfn));
+
+ mutex_lock(&bnad_fwimg_mutex);
+ if (!bfad_get_firmware_buf(pdev)) { /* Returns image */
+ mutex_unlock(&bnad_fwimg_mutex);
+ printk(KERN_WARNING "Failed to load Firmware Image!\n");
+ return -ENODEV;
+ }
+ mutex_unlock(&bnad_fwimg_mutex);
+
+ err = pci_enable_device(pdev);
+ if (err) {
+ dev_err(&pdev->dev, "pci_enable_device failed: %d\n", err);
+ return err;
+ }
+
+ err = pci_request_regions(pdev, BNAD_NAME);
+ if (err) {
+ dev_err(&pdev->dev, "pci_request_regions failed: %d\n", err);
+ goto disable_device;
+ }
+
+ if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
+ !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
+ using_dac = 1;
+ } else {
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (err) {
+ err = pci_set_consistent_dma_mask(pdev,
+ DMA_BIT_MASK(32));
+ if (err) {
+ dev_err(&pdev->dev,
+ "set 32bit consistent DMA mask failed: "
+ "%d\n", err);
+ goto release_regions;
+ }
+ }
+ using_dac = 0;
+ }
+
+ pci_set_master(pdev);
+
+ netdev = alloc_etherdev(sizeof(struct bnad));
+ if (!netdev) {
+ dev_err(&pdev->dev, "alloc_etherdev failed\n");
+ err = -ENOMEM;
+ goto release_regions;
+ }
+ SET_NETDEV_DEV(netdev, &pdev->dev);
+ pci_set_drvdata(pdev, netdev);
+
+ bnad = netdev_priv(netdev);
+
+ bnad->netdev = netdev;
+ bnad->pcidev = pdev;
+ mmio_start = pci_resource_start(pdev, 0);
+ mmio_len = pci_resource_len(pdev, 0);
+ bnad->bar0 = ioremap_nocache(mmio_start, mmio_len);
+ if (!bnad->bar0) {
+ dev_err(&pdev->dev, "ioremap for bar0 failed\n");
+ err = -ENOMEM;
+ goto free_devices;
+ }
+ printk(KERN_INFO "bar0 mapped to %p, len %lu\n", bnad->bar0, mmio_len);
+
+ netdev->netdev_ops = &bnad_netdev_ops;
+
+ netdev->features = NETIF_F_SG | NETIF_F_IP_CSUM;
+ netdev->features |= NETIF_F_IPV6_CSUM;
+ netdev->features |= NETIF_F_TSO;
+ netdev->features |= NETIF_F_TSO6;
+
+ netdev->vlan_features = netdev->features;
+ if (using_dac)
+ netdev->features |= NETIF_F_HIGHDMA;
+ netdev->features |=
+ NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX |
+ NETIF_F_HW_VLAN_FILTER;
+
+ netdev->mem_start = mmio_start;
+ netdev->mem_end = mmio_start + mmio_len - 1;
+
+ bnad_set_ethtool_ops(netdev);
+
+ bnad->bna_id = bna_id;
+ err = bnad_priv_init(bnad);
+ if (err) {
+ printk(KERN_ERR "port %u init failed: %d\n", bnad->bna_id, err);
+ goto unmap_bar0;
+ }
+
+ memcpy(netdev->dev_addr, netdev->perm_addr, netdev->addr_len);
+
+ netif_carrier_off(netdev);
+ err = register_netdev(netdev);
+ if (err) {
+ printk(KERN_ERR "port %u register_netdev failed: %d\n",
+ bnad->bna_id, err);
+ goto bnad_device_uninit;
+ }
+ bna_id++;
+ return 0;
+
+bnad_device_uninit:
+ bnad_priv_uninit(bnad);
+unmap_bar0:
+ iounmap(bnad->bar0);
+free_devices:
+ pci_set_drvdata(pdev, NULL);
+ free_netdev(netdev);
+release_regions:
+ pci_release_regions(pdev);
+disable_device:
+ pci_disable_device(pdev);
+
+ return err;
+}
+
+static void __devexit bnad_pci_remove(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct bnad *bnad;
+
+ if (!netdev)
+ return;
+
+ printk(KERN_INFO "%s bnad_pci_remove\n", netdev->name);
+ bnad = netdev_priv(netdev);
+
+ unregister_netdev(netdev);
+
+ bnad_priv_uninit(bnad);
+ iounmap(bnad->bar0);
+ pci_set_drvdata(pdev, NULL);
+ free_netdev(netdev);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+}
+
+static struct pci_driver bnad_pci_driver = {
+ .name = BNAD_NAME,
+ .id_table = bnad_pci_id_table,
+ .probe = bnad_pci_probe,
+ .remove = __devexit_p(bnad_pci_remove),
+};
+
+static int __init bnad_module_init(void)
+{
+
+ printk(KERN_INFO "Brocade 10G Ethernet driver\n");
+
+ bfa_ioc_auto_recover(bnad_ioc_auto_recover);
+
+ return pci_register_driver(&bnad_pci_driver);
+}
+
+static void __exit bnad_module_exit(void)
+{
+ pci_unregister_driver(&bnad_pci_driver);
+
+ if (bfi_image_ct_size && bfi_image_ct)
+ vfree(bfi_image_ct);
+}
+
+module_init(bnad_module_init);
+module_exit(bnad_module_exit);
+
+MODULE_AUTHOR("Brocade");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Brocade 10G PCIe Ethernet driver");
+MODULE_VERSION(BNAD_VERSION);
diff -ruP net-next-2.6.33-rc5-orig/drivers/net/bna/bnad.h net-next-2.6.33-rc5-mod/drivers/net/bna/bnad.h
--- net-next-2.6.33-rc5-orig/drivers/net/bna/bnad.h 1969-12-31 16:00:00.000000000 -0800
+++ net-next-2.6.33-rc5-mod/drivers/net/bna/bnad.h 2010-02-19 13:42:27.224250000 -0800
@@ -0,0 +1,341 @@
+/*
+ * Linux network driver for Brocade Converged Network Adapter.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License (GPL) Version 2 as
+ * published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+/*
+ * Copyright (c) 2006-2009 Brocade Communications Systems, Inc.
+ * All rights reserved
+ * www.brocade.com
+ */
+
+#ifndef _BNAD_H_
+#define _BNAD_H_
+
+#include "cee/bfa_cee.h"
+#include "bna.h"
+
+#define BNAD_MAX_Q_DEPTH 0x10000
+#define BNAD_MIN_Q_DEPTH 0x200
+
+#define BNAD_TXQ_NUM 1
+#define BNAD_TX_FUNC_ID 0
+#define BNAD_ENTRIES_PER_TXQ 2048
+
+#define BNAD_MAX_RXQS 64
+#define BNAD_MAX_RXQSETS_USED 16
+#define BNAD_RX_FUNC_ID 0
+#define BNAD_ENTRIES_PER_RXQ 2048
+
+#define BNAD_MAX_CQS 64
+#define BNAD_MAX_RXQS_PER_CQ 2
+
+#define BNAD_MSIX_ERR_MAILBOX_NUM 1
+
+#define BNAD_INTX_MAX_IB_NUM 16
+#define BNAD_INTX_IB_NUM 2 /* 1 for Tx, 1 for Rx */
+#define BNAD_INTX_TX_IB_ID 0
+#define BNAD_INTX_RX_IB_ID 1
+
+#define BNAD_QUEUE_NAME_SIZE 16
+
+#define BNAD_JUMBO_MTU 9000
+
+#define BNAD_COALESCING_TIMER_UNIT 5 /* 5us */
+#define BNAD_MAX_COALESCING_TIMEO 0xFF /* in 5us units */
+#define BNAD_MAX_INTERPKT_COUNT 0xFF
+#define BNAD_MAX_INTERPKT_TIMEO 0xF /* in 0.5us units */
+
+#define BNAD_TX_COALESCING_TIMEO 20 /* 20 * 5 = 100us */
+#define BNAD_TX_INTERPKT_COUNT 32
+
+#define BNAD_RX_COALESCING_TIMEO 12 /* 12 * 5 = 60us */
+#define BNAD_RX_INTERPKT_COUNT 6
+#define BNAD_RX_INTERPKT_TIMEO 3 /* 3 * 0.5 = 1.5us */
+
+#define BNAD_SMALL_RXBUF_SIZE 128
+
+#define BNAD_RIT_OFFSET 0
+#define BNAD_MULTICAST_RXQ_ID 0
+
+#define BNAD_NETIF_WAKE_THRESHOLD 8
+
+#define BNAD_TX_MAX_VECTORS 255
+#define BNAD_TX_MAX_VECTORS_PER_WI 4
+#define BNAD_TX_MAX_DATA_PER_WI 0xFFFFFF /* 24 bits */
+#define BNAD_TX_MAX_DATA_PER_VECTOR 0x3FFF /* 14 bits */
+#define BNAD_TX_MAX_WRR_QUOTA 0xFFF /* 12 bits */
+
+#define BNAD_RXQ_REFILL_THRESHOLD_SHIFT 3
+
+#define BNAD_NOT_READY(_bnad) test_bit(BNAD_F_HWERROR, &(_bnad)->flags)
+#define BNAD_ADMIN_DOWN(_bnad) (!netif_running((_bnad)->netdev) || \
+ test_bit(BNAD_F_BCU_DISABLED, &(_bnad)->flags))
+
+#define BNAD_Q_INDEX_CHANGE(_old_idx, _updated_idx, _q_depth) \
+ (((_updated_idx) - (_old_idx)) & ((_q_depth) - 1))
+
+extern u32 bfi_image_ct_size;
+extern u32 *bfi_image_ct;
+extern u32 *bfad_get_firmware_buf(struct pci_dev *pdev);
+
+struct bnad_skb_unmap {
+ struct sk_buff *skb;
+ DECLARE_PCI_UNMAP_ADDR(dma_addr)
+};
+
+struct bnad_unmap_q {
+ u32 producer_index;
+ u32 consumer_index;
+ struct bnad_skb_unmap *unmap_array;
+ u32 q_depth;
+};
+
+struct bnad_ib_entry {
+ struct bna_ib *ib;
+ void *ib_seg_addr;
+ struct bna_ib_config ib_config;
+};
+
+struct bnad_txq_info {
+ unsigned long flags;
+#define BNAD_TXQ_FREE_SENT 0
+ struct bna_txq txq;
+ struct bna_ib ib;
+ struct bnad_unmap_q skb_unmap_q;
+ u64 tx_packets;
+ u64 tx_bytes;
+ struct bnad *bnad;
+ volatile u32 *hw_consumer_index;
+ struct bna_txq_config txq_config;
+ char name[BNAD_QUEUE_NAME_SIZE];
+} ____cacheline_aligned;
+
+struct bnad_rxq_info {
+ unsigned long flags;
+#define BNAD_RXQ_REFILL 0
+ struct bna_rxq rxq;
+ struct bnad_unmap_q skb_unmap_q;
+ u64 rx_packets;
+ u64 rx_bytes;
+ u64 rx_packets_with_error;
+ u64 rxbuf_alloc_failed;
+ struct bnad *bnad;
+ u32 rxq_id;
+ struct bna_rxq_config rxq_config;
+} ____cacheline_aligned;
+
+struct bnad_cq_info {
+ struct bna_cq cq;
+ struct bna_ib ib;
+ struct bnad *bnad;
+ struct bna_pkt_rate pkt_rate;
+ u8 rx_coalescing_timeo; /* Unit is 5usec. */
+ volatile u32 *hw_producer_index;
+ struct napi_struct napi;
+ u32 cq_id;
+ struct bna_cq_config cq_config;
+ char name[BNAD_QUEUE_NAME_SIZE];
+} ____cacheline_aligned;
+
+struct bnad_txf_info {
+ u32 txf_id;
+ struct bna_txf_config txf_config;
+};
+
+struct bnad_rxf_info {
+ u32 rxf_id;
+ struct bna_rxf_config rxf_config;
+};
+
+enum bnad_ucast_cmd {
+ BNAD_UCAST_MAC_SET,
+ BNAD_UCAST_MAC_ADD,
+ BNAD_UCAST_MAC_DEL
+};
+
+enum bnad_state {
+ BNAD_S_START = 0,
+ BNAD_S_INIT = 1,
+ BNAD_S_INIT_DOWN = 2,
+ BNAD_S_INIT_DISABLING = 3,
+ BNAD_S_INIT_DISABLED = 4,
+ BNAD_S_OPENING = 5,
+ BNAD_S_OPEN = 6,
+ BNAD_S_OPEN_DOWN = 7,
+ BNAD_S_OPEN_DISABLING = 8,
+ BNAD_S_OPEN_DISABLED = 9,
+ BNAD_S_CLOSING = 10,
+ BNAD_S_UNLOADING = 11
+};
+
+enum bnad_link_state {
+ BNAD_LS_DOWN = 0,
+ BNAD_LS_UP = 1
+};
+struct bnad {
+ struct net_device *netdev;
+ struct pci_dev *pcidev;
+ struct bna_dev *priv;
+
+ enum bnad_state state;
+ unsigned long flags;
+#define BNAD_F_BCU_DISABLED 0
+#define BNAD_F_HWERROR 1
+#define BNAD_F_MBOX_IRQ_DISABLED 2
+#define BNAD_F_CEE_RUNNING 3
+
+ unsigned int config;
+#define BNAD_CF_MSIX 0x01
+#define BNAD_CF_PROMISC 0x02
+#define BNAD_CF_ALLMULTI 0x04
+#define BNAD_CF_TXQ_DEPTH 0x10
+#define BNAD_CF_RXQ_DEPTH 0x20
+
+ unsigned int priority;
+ unsigned int curr_priority; /* currently applied priority */
+
+ enum bnad_link_state link_state;
+ u8 cee_linkup;
+
+ uint txq_num;
+ uint txq_depth;
+ struct bnad_txq_info *txq_table;
+
+ struct tasklet_struct tx_free_tasklet; /* For Tx cleanup */
+
+ uint rxq_num;
+ uint rxq_depth;
+ struct bnad_rxq_info *rxq_table;
+ uint cq_num;
+ struct bnad_cq_info *cq_table;
+
+ struct vlan_group *vlangrp;
+
+ u32 rx_csum;
+
+ uint msix_num;
+ struct msix_entry *msix_table;
+
+ uint ib_num;
+ struct bnad_ib_entry *ib_table;
+
+ struct bna_rit_entry *rit; /* RxQ Indirection Table */
+
+ spinlock_t priv_lock ____cacheline_aligned;
+
+ uint txf_num;
+ struct bnad_txf_info *txf_table;
+ uint rxf_num;
+ struct bnad_rxf_info *rxf_table;
+
+ struct timer_list stats_timer;
+ struct net_device_stats net_stats;
+
+ u8 tx_coalescing_timeo; /* Unit is 5usec. */
+ u8 tx_interpkt_count;
+
+ u8 rx_coalescing_timeo; /* Unit is 5usec. */
+ u8 rx_interpkt_count;
+ u8 rx_interpkt_timeo; /* 4 bits, unit is 0.5usec. */
+
+ u8 rx_dyn_coalesce_on; /* Rx Dynamic Intr Moderation Flag */
+
+ u8 ref_count;
+
+ u8 lldp_comp_status;
+ u8 cee_stats_comp_status;
+ u8 cee_reset_stats_status;
+ u8 ucast_comp_status;
+ u8 qstop_comp_status;
+
+ int ioc_comp_status;
+
+ struct bna_pause_config pause_config;
+
+ struct bna_stats *hw_stats;
+ struct bnad_drv_stats stats;
+
+ struct work_struct work;
+ unsigned int work_flags;
+#define BNAD_WF_ERROR 0x1
+#define BNAD_WF_RESETDONE 0x2
+#define BNAD_WF_CEE_PRIO 0x4
+#define BNAD_WF_LS_NOTIFY 0x8
+
+ struct completion lldp_comp;
+ struct completion cee_stats_comp;
+ struct completion cee_reset_stats_comp;
+ struct completion ucast_comp;
+ struct completion qstop_comp;
+ struct completion ioc_comp;
+
+ u32 bna_id;
+ u8 __iomem *bar0; /* registers */
+
+ void *priv_stats;
+ DECLARE_PCI_UNMAP_ADDR(priv_stats_dma)
+
+ struct bfa_trc_mod *trcmod;
+ struct bfa_log_mod *logmod;
+ struct bna_meminfo ioc_meminfo[BNA_MEM_T_MAX];
+ struct timer_list ioc_timer;
+ struct mutex conf_mutex;
+
+ struct bna_mbox_cbfn priv_cbfn;
+
+ char adapter_name[64];
+ char port_name[64];
+
+ /* CEE Stuff */
+ struct bfa_cee_cbfn cee_cbfn;
+ struct bfa_cee cee;
+
+ struct list_head list_entry;
+};
+
+extern uint bnad_rxqs_per_cq;
+
+extern struct semaphore bnad_list_sem;
+extern struct list_head bnad_list;
+
+int bnad_open(struct net_device *netdev);
+int bnad_stop(struct net_device *netdev);
+int bnad_stop_locked(struct net_device *netdev);
+int bnad_open_locked(struct net_device *netdev);
+int bnad_sw_reset_locked(struct net_device *netdev);
+int bnad_ioc_disabling_locked(struct bnad *bnad);
+void bnad_set_ethtool_ops(struct net_device *netdev);
+struct net_device_stats *bnad_get_stats(struct net_device *netdev);
+
+int bnad_ucast_mac(struct bnad *bnad, unsigned int rxf_id, u8 * mac_ptr,
+ unsigned int cmd);
+void bnad_rxf_init(struct bnad *bnad, uint rxf_id, u8 rit_offset, int rss);
+int bnad_rxq_init(struct bnad *bnad, uint rxq_id);
+void bnad_setup_rxq(struct bnad *bnad, uint rxq_id);
+void bnad_alloc_for_rxq(struct bnad *bnad, uint rxq_id);
+int bnad_disable_rxqs(struct bnad *bnad, u64 rxq_id_mask);
+void bnad_free_rxq(struct bnad *bnad, uint rxq_id);
+int bnad_cq_init(struct bnad *bnad, uint cq_id);
+void bnad_setup_cq(struct bnad *bnad, uint cq_id);
+void bnad_setup_ib(struct bnad *bnad, uint ib_id);
+void bnad_rxib_init(struct bnad *bnad, uint cq_id, uint ib_id);
+void bnad_free_ib(struct bnad *bnad, uint ib_id);
+int bnad_request_cq_irq(struct bnad *bnad, uint cq_id);
+u32 bnad_get_msglevel(struct net_device *netdev);
+void bnad_set_msglevel(struct net_device *netdev, u32 msglevel);
+int bnad_alloc_unmap_q(struct bnad_unmap_q *unmap_q, u32 q_depth);
+void bnad_free_cq(struct bnad *bnad, uint cq_id);
+void bnad_add_to_list(struct bnad *bnad);
+void bnad_remove_from_list(struct bnad *bnad);
+struct bnad *get_bnadev(int bna_id);
+int bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev);
+
+#endif /* _BNAD_H_ */
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