+++ /dev/null
-/*
- * 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) 2005-2010 Brocade Communications Systems, Inc.
- * All rights reserved
- * www.brocade.com
- */
-#include <linux/bitops.h>
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/etherdevice.h>
-#include <linux/in.h>
-#include <linux/ethtool.h>
-#include <linux/if_vlan.h>
-#include <linux/if_ether.h>
-#include <linux/ip.h>
-#include <linux/prefetch.h>
-
-#include "bnad.h"
-#include "bna.h"
-#include "cna.h"
-
-static DEFINE_MUTEX(bnad_fwimg_mutex);
-
-/*
- * Module params
- */
-static uint bnad_msix_disable;
-module_param(bnad_msix_disable, uint, 0444);
-MODULE_PARM_DESC(bnad_msix_disable, "Disable MSIX mode");
-
-static uint bnad_ioc_auto_recover = 1;
-module_param(bnad_ioc_auto_recover, uint, 0444);
-MODULE_PARM_DESC(bnad_ioc_auto_recover, "Enable / Disable auto recovery");
-
-/*
- * Global variables
- */
-u32 bnad_rxqs_per_cq = 2;
-
-static const u8 bnad_bcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
-
-/*
- * Local MACROS
- */
-#define BNAD_TX_UNMAPQ_DEPTH (bnad->txq_depth * 2)
-
-#define BNAD_RX_UNMAPQ_DEPTH (bnad->rxq_depth)
-
-#define BNAD_GET_MBOX_IRQ(_bnad) \
- (((_bnad)->cfg_flags & BNAD_CF_MSIX) ? \
- ((_bnad)->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector) : \
- ((_bnad)->pcidev->irq))
-
-#define BNAD_FILL_UNMAPQ_MEM_REQ(_res_info, _num, _depth) \
-do { \
- (_res_info)->res_type = BNA_RES_T_MEM; \
- (_res_info)->res_u.mem_info.mem_type = BNA_MEM_T_KVA; \
- (_res_info)->res_u.mem_info.num = (_num); \
- (_res_info)->res_u.mem_info.len = \
- sizeof(struct bnad_unmap_q) + \
- (sizeof(struct bnad_skb_unmap) * ((_depth) - 1)); \
-} while (0)
-
-#define BNAD_TXRX_SYNC_MDELAY 250 /* 250 msecs */
-
-/*
- * Reinitialize completions in CQ, once Rx is taken down
- */
-static void
-bnad_cq_cmpl_init(struct bnad *bnad, struct bna_ccb *ccb)
-{
- struct bna_cq_entry *cmpl, *next_cmpl;
- unsigned int wi_range, wis = 0, ccb_prod = 0;
- int i;
-
- BNA_CQ_QPGE_PTR_GET(ccb_prod, ccb->sw_qpt, cmpl,
- wi_range);
-
- for (i = 0; i < ccb->q_depth; i++) {
- wis++;
- if (likely(--wi_range))
- next_cmpl = cmpl + 1;
- else {
- BNA_QE_INDX_ADD(ccb_prod, wis, ccb->q_depth);
- wis = 0;
- BNA_CQ_QPGE_PTR_GET(ccb_prod, ccb->sw_qpt,
- next_cmpl, wi_range);
- }
- cmpl->valid = 0;
- cmpl = next_cmpl;
- }
-}
-
-/*
- * Frees all pending Tx Bufs
- * At this point no activity is expected on the Q,
- * so DMA unmap & freeing is fine.
- */
-static void
-bnad_free_all_txbufs(struct bnad *bnad,
- struct bna_tcb *tcb)
-{
- u32 unmap_cons;
- struct bnad_unmap_q *unmap_q = tcb->unmap_q;
- struct bnad_skb_unmap *unmap_array;
- struct sk_buff *skb = NULL;
- int i;
-
- unmap_array = unmap_q->unmap_array;
-
- unmap_cons = 0;
- while (unmap_cons < unmap_q->q_depth) {
- skb = unmap_array[unmap_cons].skb;
- if (!skb) {
- unmap_cons++;
- continue;
- }
- unmap_array[unmap_cons].skb = NULL;
-
- dma_unmap_single(&bnad->pcidev->dev,
- dma_unmap_addr(&unmap_array[unmap_cons],
- dma_addr), skb_headlen(skb),
- DMA_TO_DEVICE);
-
- dma_unmap_addr_set(&unmap_array[unmap_cons], dma_addr, 0);
- if (++unmap_cons >= unmap_q->q_depth)
- break;
-
- for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- dma_unmap_page(&bnad->pcidev->dev,
- dma_unmap_addr(&unmap_array[unmap_cons],
- dma_addr),
- skb_shinfo(skb)->frags[i].size,
- DMA_TO_DEVICE);
- dma_unmap_addr_set(&unmap_array[unmap_cons], dma_addr,
- 0);
- if (++unmap_cons >= unmap_q->q_depth)
- break;
- }
- dev_kfree_skb_any(skb);
- }
-}
-
-/* Data Path Handlers */
-
-/*
- * bnad_free_txbufs : Frees the Tx bufs on Tx completion
- * Can be called in a) Interrupt context
- * b) Sending context
- * c) Tasklet context
- */
-static u32
-bnad_free_txbufs(struct bnad *bnad,
- struct bna_tcb *tcb)
-{
- u32 sent_packets = 0, sent_bytes = 0;
- u16 wis, unmap_cons, updated_hw_cons;
- struct bnad_unmap_q *unmap_q = tcb->unmap_q;
- struct bnad_skb_unmap *unmap_array;
- struct sk_buff *skb;
- int i;
-
- /*
- * Just return if TX is stopped. This check is useful
- * when bnad_free_txbufs() runs out of a tasklet scheduled
- * before bnad_cb_tx_cleanup() cleared BNAD_TXQ_TX_STARTED bit
- * but this routine runs actually after the cleanup has been
- * executed.
- */
- if (!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))
- return 0;
-
- updated_hw_cons = *(tcb->hw_consumer_index);
-
- wis = BNA_Q_INDEX_CHANGE(tcb->consumer_index,
- updated_hw_cons, tcb->q_depth);
-
- BUG_ON(!(wis <= BNA_QE_IN_USE_CNT(tcb, tcb->q_depth)));
-
- unmap_array = unmap_q->unmap_array;
- unmap_cons = unmap_q->consumer_index;
-
- prefetch(&unmap_array[unmap_cons + 1]);
- while (wis) {
- skb = unmap_array[unmap_cons].skb;
-
- unmap_array[unmap_cons].skb = NULL;
-
- sent_packets++;
- sent_bytes += skb->len;
- wis -= BNA_TXQ_WI_NEEDED(1 + skb_shinfo(skb)->nr_frags);
-
- dma_unmap_single(&bnad->pcidev->dev,
- dma_unmap_addr(&unmap_array[unmap_cons],
- dma_addr), skb_headlen(skb),
- DMA_TO_DEVICE);
- dma_unmap_addr_set(&unmap_array[unmap_cons], dma_addr, 0);
- BNA_QE_INDX_ADD(unmap_cons, 1, unmap_q->q_depth);
-
- prefetch(&unmap_array[unmap_cons + 1]);
- for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- prefetch(&unmap_array[unmap_cons + 1]);
-
- dma_unmap_page(&bnad->pcidev->dev,
- dma_unmap_addr(&unmap_array[unmap_cons],
- dma_addr),
- skb_shinfo(skb)->frags[i].size,
- DMA_TO_DEVICE);
- dma_unmap_addr_set(&unmap_array[unmap_cons], dma_addr,
- 0);
- BNA_QE_INDX_ADD(unmap_cons, 1, unmap_q->q_depth);
- }
- dev_kfree_skb_any(skb);
- }
-
- /* Update consumer pointers. */
- tcb->consumer_index = updated_hw_cons;
- unmap_q->consumer_index = unmap_cons;
-
- tcb->txq->tx_packets += sent_packets;
- tcb->txq->tx_bytes += sent_bytes;
-
- return sent_packets;
-}
-
-/* Tx Free Tasklet function */
-/* Frees for all the tcb's in all the Tx's */
-/*
- * Scheduled from sending context, so that
- * the fat Tx lock is not held for too long
- * in the sending context.
- */
-static void
-bnad_tx_free_tasklet(unsigned long bnad_ptr)
-{
- struct bnad *bnad = (struct bnad *)bnad_ptr;
- struct bna_tcb *tcb;
- u32 acked = 0;
- int i, j;
-
- for (i = 0; i < bnad->num_tx; i++) {
- for (j = 0; j < bnad->num_txq_per_tx; j++) {
- tcb = bnad->tx_info[i].tcb[j];
- if (!tcb)
- continue;
- if (((u16) (*tcb->hw_consumer_index) !=
- tcb->consumer_index) &&
- (!test_and_set_bit(BNAD_TXQ_FREE_SENT,
- &tcb->flags))) {
- acked = bnad_free_txbufs(bnad, tcb);
- if (likely(test_bit(BNAD_TXQ_TX_STARTED,
- &tcb->flags)))
- bna_ib_ack(tcb->i_dbell, acked);
- smp_mb__before_clear_bit();
- clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
- }
- if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED,
- &tcb->flags)))
- continue;
- if (netif_queue_stopped(bnad->netdev)) {
- if (acked && netif_carrier_ok(bnad->netdev) &&
- BNA_QE_FREE_CNT(tcb, tcb->q_depth) >=
- BNAD_NETIF_WAKE_THRESHOLD) {
- netif_wake_queue(bnad->netdev);
- /* TODO */
- /* Counters for individual TxQs? */
- BNAD_UPDATE_CTR(bnad,
- netif_queue_wakeup);
- }
- }
- }
- }
-}
-
-static u32
-bnad_tx(struct bnad *bnad, struct bna_tcb *tcb)
-{
- struct net_device *netdev = bnad->netdev;
- u32 sent = 0;
-
- if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags))
- return 0;
-
- sent = bnad_free_txbufs(bnad, tcb);
- if (sent) {
- if (netif_queue_stopped(netdev) &&
- netif_carrier_ok(netdev) &&
- BNA_QE_FREE_CNT(tcb, tcb->q_depth) >=
- BNAD_NETIF_WAKE_THRESHOLD) {
- if (test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) {
- netif_wake_queue(netdev);
- BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
- }
- }
- }
-
- if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)))
- bna_ib_ack(tcb->i_dbell, sent);
-
- smp_mb__before_clear_bit();
- clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
-
- return sent;
-}
-
-/* MSIX Tx Completion Handler */
-static irqreturn_t
-bnad_msix_tx(int irq, void *data)
-{
- struct bna_tcb *tcb = (struct bna_tcb *)data;
- struct bnad *bnad = tcb->bnad;
-
- bnad_tx(bnad, tcb);
-
- return IRQ_HANDLED;
-}
-
-static void
-bnad_reset_rcb(struct bnad *bnad, struct bna_rcb *rcb)
-{
- struct bnad_unmap_q *unmap_q = rcb->unmap_q;
-
- rcb->producer_index = 0;
- rcb->consumer_index = 0;
-
- unmap_q->producer_index = 0;
- unmap_q->consumer_index = 0;
-}
-
-static void
-bnad_free_all_rxbufs(struct bnad *bnad, struct bna_rcb *rcb)
-{
- struct bnad_unmap_q *unmap_q;
- struct bnad_skb_unmap *unmap_array;
- struct sk_buff *skb;
- int unmap_cons;
-
- unmap_q = rcb->unmap_q;
- unmap_array = unmap_q->unmap_array;
- for (unmap_cons = 0; unmap_cons < unmap_q->q_depth; unmap_cons++) {
- skb = unmap_array[unmap_cons].skb;
- if (!skb)
- continue;
- unmap_array[unmap_cons].skb = NULL;
- dma_unmap_single(&bnad->pcidev->dev,
- dma_unmap_addr(&unmap_array[unmap_cons],
- dma_addr),
- rcb->rxq->buffer_size,
- DMA_FROM_DEVICE);
- dev_kfree_skb(skb);
- }
- bnad_reset_rcb(bnad, rcb);
-}
-
-static void
-bnad_alloc_n_post_rxbufs(struct bnad *bnad, struct bna_rcb *rcb)
-{
- u16 to_alloc, alloced, unmap_prod, wi_range;
- struct bnad_unmap_q *unmap_q = rcb->unmap_q;
- 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(unmap_q, unmap_q->q_depth);
-
- unmap_array = unmap_q->unmap_array;
- unmap_prod = unmap_q->producer_index;
-
- BNA_RXQ_QPGE_PTR_GET(unmap_prod, rcb->sw_qpt, rxent, wi_range);
-
- while (to_alloc--) {
- if (!wi_range) {
- BNA_RXQ_QPGE_PTR_GET(unmap_prod, rcb->sw_qpt, rxent,
- wi_range);
- }
- skb = netdev_alloc_skb_ip_align(bnad->netdev,
- rcb->rxq->buffer_size);
- if (unlikely(!skb)) {
- BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed);
- goto finishing;
- }
- unmap_array[unmap_prod].skb = skb;
- dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data,
- rcb->rxq->buffer_size,
- DMA_FROM_DEVICE);
- dma_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, unmap_q->q_depth);
-
- rxent++;
- wi_range--;
- alloced++;
- }
-
-finishing:
- if (likely(alloced)) {
- unmap_q->producer_index = unmap_prod;
- rcb->producer_index = unmap_prod;
- smp_mb();
- if (likely(test_bit(BNAD_RXQ_STARTED, &rcb->flags)))
- bna_rxq_prod_indx_doorbell(rcb);
- }
-}
-
-static inline void
-bnad_refill_rxq(struct bnad *bnad, struct bna_rcb *rcb)
-{
- struct bnad_unmap_q *unmap_q = rcb->unmap_q;
-
- if (!test_and_set_bit(BNAD_RXQ_REFILL, &rcb->flags)) {
- if (BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth)
- >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT)
- bnad_alloc_n_post_rxbufs(bnad, rcb);
- smp_mb__before_clear_bit();
- clear_bit(BNAD_RXQ_REFILL, &rcb->flags);
- }
-}
-
-static u32
-bnad_poll_cq(struct bnad *bnad, struct bna_ccb *ccb, int budget)
-{
- struct bna_cq_entry *cmpl, *next_cmpl;
- struct bna_rcb *rcb = NULL;
- unsigned int wi_range, packets = 0, wis = 0;
- struct bnad_unmap_q *unmap_q;
- struct bnad_skb_unmap *unmap_array;
- struct sk_buff *skb;
- u32 flags, unmap_cons;
- u32 qid0 = ccb->rcb[0]->rxq->rxq_id;
- struct bna_pkt_rate *pkt_rt = &ccb->pkt_rate;
-
- if (!test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags))
- return 0;
-
- prefetch(bnad->netdev);
- BNA_CQ_QPGE_PTR_GET(ccb->producer_index, ccb->sw_qpt, cmpl,
- wi_range);
- BUG_ON(!(wi_range <= ccb->q_depth));
- while (cmpl->valid && packets < budget) {
- packets++;
- BNA_UPDATE_PKT_CNT(pkt_rt, ntohs(cmpl->length));
-
- if (qid0 == cmpl->rxq_id)
- rcb = ccb->rcb[0];
- else
- rcb = ccb->rcb[1];
-
- unmap_q = rcb->unmap_q;
- unmap_array = unmap_q->unmap_array;
- unmap_cons = unmap_q->consumer_index;
-
- skb = unmap_array[unmap_cons].skb;
- BUG_ON(!(skb));
- unmap_array[unmap_cons].skb = NULL;
- dma_unmap_single(&bnad->pcidev->dev,
- dma_unmap_addr(&unmap_array[unmap_cons],
- dma_addr),
- rcb->rxq->buffer_size,
- DMA_FROM_DEVICE);
- BNA_QE_INDX_ADD(unmap_q->consumer_index, 1, unmap_q->q_depth);
-
- /* Should be more efficient ? Performance ? */
- BNA_QE_INDX_ADD(rcb->consumer_index, 1, rcb->q_depth);
-
- wis++;
- if (likely(--wi_range))
- next_cmpl = cmpl + 1;
- else {
- BNA_QE_INDX_ADD(ccb->producer_index, wis, ccb->q_depth);
- wis = 0;
- BNA_CQ_QPGE_PTR_GET(ccb->producer_index, ccb->sw_qpt,
- next_cmpl, wi_range);
- BUG_ON(!(wi_range <= ccb->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_any(skb);
- rcb->rxq->rx_packets_with_error++;
- goto next;
- }
-
- skb_put(skb, ntohs(cmpl->length));
- if (likely
- ((bnad->netdev->features & NETIF_F_RXCSUM) &&
- (((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_checksum_none_assert(skb);
-
- rcb->rxq->rx_packets++;
- rcb->rxq->rx_bytes += skb->len;
- skb->protocol = eth_type_trans(skb, bnad->netdev);
-
- if (flags & BNA_CQ_EF_VLAN)
- __vlan_hwaccel_put_tag(skb, ntohs(cmpl->vlan_tag));
-
- if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
- struct bnad_rx_ctrl *rx_ctrl;
-
- rx_ctrl = (struct bnad_rx_ctrl *) ccb->ctrl;
- napi_gro_receive(&rx_ctrl->napi, skb);
- } else {
- netif_receive_skb(skb);
- }
-
-next:
- cmpl->valid = 0;
- cmpl = next_cmpl;
- }
-
- BNA_QE_INDX_ADD(ccb->producer_index, wis, ccb->q_depth);
-
- if (likely(ccb)) {
- if (likely(test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags)))
- bna_ib_ack(ccb->i_dbell, packets);
- bnad_refill_rxq(bnad, ccb->rcb[0]);
- if (ccb->rcb[1])
- bnad_refill_rxq(bnad, ccb->rcb[1]);
- } else {
- if (likely(test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags)))
- bna_ib_ack(ccb->i_dbell, 0);
- }
-
- return packets;
-}
-
-static void
-bnad_disable_rx_irq(struct bnad *bnad, struct bna_ccb *ccb)
-{
- if (unlikely(!test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags)))
- return;
-
- bna_ib_coalescing_timer_set(ccb->i_dbell, 0);
- bna_ib_ack(ccb->i_dbell, 0);
-}
-
-static void
-bnad_enable_rx_irq(struct bnad *bnad, struct bna_ccb *ccb)
-{
- unsigned long flags;
-
- /* Because of polling context */
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bnad_enable_rx_irq_unsafe(ccb);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-}
-
-static void
-bnad_netif_rx_schedule_poll(struct bnad *bnad, struct bna_ccb *ccb)
-{
- struct bnad_rx_ctrl *rx_ctrl = (struct bnad_rx_ctrl *)(ccb->ctrl);
- struct napi_struct *napi = &rx_ctrl->napi;
-
- if (likely(napi_schedule_prep(napi))) {
- bnad_disable_rx_irq(bnad, ccb);
- __napi_schedule(napi);
- }
- BNAD_UPDATE_CTR(bnad, netif_rx_schedule);
-}
-
-/* MSIX Rx Path Handler */
-static irqreturn_t
-bnad_msix_rx(int irq, void *data)
-{
- struct bna_ccb *ccb = (struct bna_ccb *)data;
- struct bnad *bnad = ccb->bnad;
-
- bnad_netif_rx_schedule_poll(bnad, ccb);
-
- return IRQ_HANDLED;
-}
-
-/* Interrupt handlers */
-
-/* Mbox Interrupt Handlers */
-static irqreturn_t
-bnad_msix_mbox_handler(int irq, void *data)
-{
- u32 intr_status;
- unsigned long flags;
- struct bnad *bnad = (struct bnad *)data;
-
- if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags)))
- return IRQ_HANDLED;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
-
- bna_intr_status_get(&bnad->bna, intr_status);
-
- if (BNA_IS_MBOX_ERR_INTR(intr_status))
- bna_mbox_handler(&bnad->bna, intr_status);
-
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t
-bnad_isr(int irq, void *data)
-{
- int i, j;
- u32 intr_status;
- unsigned long flags;
- struct bnad *bnad = (struct bnad *)data;
- struct bnad_rx_info *rx_info;
- struct bnad_rx_ctrl *rx_ctrl;
-
- if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags)))
- return IRQ_NONE;
-
- bna_intr_status_get(&bnad->bna, intr_status);
-
- if (unlikely(!intr_status))
- return IRQ_NONE;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
-
- if (BNA_IS_MBOX_ERR_INTR(intr_status))
- bna_mbox_handler(&bnad->bna, intr_status);
-
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- if (!BNA_IS_INTX_DATA_INTR(intr_status))
- return IRQ_HANDLED;
-
- /* Process data interrupts */
- /* Tx processing */
- for (i = 0; i < bnad->num_tx; i++) {
- for (j = 0; j < bnad->num_txq_per_tx; j++)
- bnad_tx(bnad, bnad->tx_info[i].tcb[j]);
- }
- /* Rx processing */
- for (i = 0; i < bnad->num_rx; i++) {
- rx_info = &bnad->rx_info[i];
- if (!rx_info->rx)
- continue;
- for (j = 0; j < bnad->num_rxp_per_rx; j++) {
- rx_ctrl = &rx_info->rx_ctrl[j];
- if (rx_ctrl->ccb)
- bnad_netif_rx_schedule_poll(bnad,
- rx_ctrl->ccb);
- }
- }
- return IRQ_HANDLED;
-}
-
-/*
- * Called in interrupt / callback context
- * with bna_lock held, so cfg_flags access is OK
- */
-static void
-bnad_enable_mbox_irq(struct bnad *bnad)
-{
- clear_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags);
-
- BNAD_UPDATE_CTR(bnad, mbox_intr_enabled);
-}
-
-/*
- * Called with bnad->bna_lock held b'cos of
- * bnad->cfg_flags access.
- */
-static void
-bnad_disable_mbox_irq(struct bnad *bnad)
-{
- set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags);
-
- BNAD_UPDATE_CTR(bnad, mbox_intr_disabled);
-}
-
-static void
-bnad_set_netdev_perm_addr(struct bnad *bnad)
-{
- struct net_device *netdev = bnad->netdev;
-
- memcpy(netdev->perm_addr, &bnad->perm_addr, netdev->addr_len);
- if (is_zero_ether_addr(netdev->dev_addr))
- memcpy(netdev->dev_addr, &bnad->perm_addr, netdev->addr_len);
-}
-
-/* Control Path Handlers */
-
-/* Callbacks */
-void
-bnad_cb_device_enable_mbox_intr(struct bnad *bnad)
-{
- bnad_enable_mbox_irq(bnad);
-}
-
-void
-bnad_cb_device_disable_mbox_intr(struct bnad *bnad)
-{
- bnad_disable_mbox_irq(bnad);
-}
-
-void
-bnad_cb_device_enabled(struct bnad *bnad, enum bna_cb_status status)
-{
- complete(&bnad->bnad_completions.ioc_comp);
- bnad->bnad_completions.ioc_comp_status = status;
-}
-
-void
-bnad_cb_device_disabled(struct bnad *bnad, enum bna_cb_status status)
-{
- complete(&bnad->bnad_completions.ioc_comp);
- bnad->bnad_completions.ioc_comp_status = status;
-}
-
-static void
-bnad_cb_port_disabled(void *arg, enum bna_cb_status status)
-{
- struct bnad *bnad = (struct bnad *)arg;
-
- complete(&bnad->bnad_completions.port_comp);
-
- netif_carrier_off(bnad->netdev);
-}
-
-void
-bnad_cb_port_link_status(struct bnad *bnad,
- enum bna_link_status link_status)
-{
- bool link_up = 0;
-
- link_up = (link_status == BNA_LINK_UP) || (link_status == BNA_CEE_UP);
-
- if (link_status == BNA_CEE_UP) {
- set_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags);
- BNAD_UPDATE_CTR(bnad, cee_up);
- } else
- clear_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags);
-
- if (link_up) {
- if (!netif_carrier_ok(bnad->netdev)) {
- struct bna_tcb *tcb = bnad->tx_info[0].tcb[0];
- if (!tcb)
- return;
- pr_warn("bna: %s link up\n",
- bnad->netdev->name);
- netif_carrier_on(bnad->netdev);
- BNAD_UPDATE_CTR(bnad, link_toggle);
- if (test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) {
- /* Force an immediate Transmit Schedule */
- pr_info("bna: %s TX_STARTED\n",
- bnad->netdev->name);
- netif_wake_queue(bnad->netdev);
- BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
- } else {
- netif_stop_queue(bnad->netdev);
- BNAD_UPDATE_CTR(bnad, netif_queue_stop);
- }
- }
- } else {
- if (netif_carrier_ok(bnad->netdev)) {
- pr_warn("bna: %s link down\n",
- bnad->netdev->name);
- netif_carrier_off(bnad->netdev);
- BNAD_UPDATE_CTR(bnad, link_toggle);
- }
- }
-}
-
-static void
-bnad_cb_tx_disabled(void *arg, struct bna_tx *tx,
- enum bna_cb_status status)
-{
- struct bnad *bnad = (struct bnad *)arg;
-
- complete(&bnad->bnad_completions.tx_comp);
-}
-
-static void
-bnad_cb_tcb_setup(struct bnad *bnad, struct bna_tcb *tcb)
-{
- struct bnad_tx_info *tx_info =
- (struct bnad_tx_info *)tcb->txq->tx->priv;
- struct bnad_unmap_q *unmap_q = tcb->unmap_q;
-
- tx_info->tcb[tcb->id] = tcb;
- unmap_q->producer_index = 0;
- unmap_q->consumer_index = 0;
- unmap_q->q_depth = BNAD_TX_UNMAPQ_DEPTH;
-}
-
-static void
-bnad_cb_tcb_destroy(struct bnad *bnad, struct bna_tcb *tcb)
-{
- struct bnad_tx_info *tx_info =
- (struct bnad_tx_info *)tcb->txq->tx->priv;
- struct bnad_unmap_q *unmap_q = tcb->unmap_q;
-
- while (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags))
- cpu_relax();
-
- bnad_free_all_txbufs(bnad, tcb);
-
- unmap_q->producer_index = 0;
- unmap_q->consumer_index = 0;
-
- smp_mb__before_clear_bit();
- clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
-
- tx_info->tcb[tcb->id] = NULL;
-}
-
-static void
-bnad_cb_rcb_setup(struct bnad *bnad, struct bna_rcb *rcb)
-{
- struct bnad_unmap_q *unmap_q = rcb->unmap_q;
-
- unmap_q->producer_index = 0;
- unmap_q->consumer_index = 0;
- unmap_q->q_depth = BNAD_RX_UNMAPQ_DEPTH;
-}
-
-static void
-bnad_cb_rcb_destroy(struct bnad *bnad, struct bna_rcb *rcb)
-{
- bnad_free_all_rxbufs(bnad, rcb);
-}
-
-static void
-bnad_cb_ccb_setup(struct bnad *bnad, struct bna_ccb *ccb)
-{
- struct bnad_rx_info *rx_info =
- (struct bnad_rx_info *)ccb->cq->rx->priv;
-
- rx_info->rx_ctrl[ccb->id].ccb = ccb;
- ccb->ctrl = &rx_info->rx_ctrl[ccb->id];
-}
-
-static void
-bnad_cb_ccb_destroy(struct bnad *bnad, struct bna_ccb *ccb)
-{
- struct bnad_rx_info *rx_info =
- (struct bnad_rx_info *)ccb->cq->rx->priv;
-
- rx_info->rx_ctrl[ccb->id].ccb = NULL;
-}
-
-static void
-bnad_cb_tx_stall(struct bnad *bnad, struct bna_tcb *tcb)
-{
- struct bnad_tx_info *tx_info =
- (struct bnad_tx_info *)tcb->txq->tx->priv;
-
- if (tx_info != &bnad->tx_info[0])
- return;
-
- clear_bit(BNAD_TXQ_TX_STARTED, &tcb->flags);
- netif_stop_queue(bnad->netdev);
- pr_info("bna: %s TX_STOPPED\n", bnad->netdev->name);
-}
-
-static void
-bnad_cb_tx_resume(struct bnad *bnad, struct bna_tcb *tcb)
-{
- struct bnad_unmap_q *unmap_q = tcb->unmap_q;
-
- if (test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))
- return;
-
- clear_bit(BNAD_RF_TX_SHUTDOWN_DELAYED, &bnad->run_flags);
-
- while (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags))
- cpu_relax();
-
- bnad_free_all_txbufs(bnad, tcb);
-
- unmap_q->producer_index = 0;
- unmap_q->consumer_index = 0;
-
- smp_mb__before_clear_bit();
- clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
-
- /*
- * Workaround for first device enable failure & we
- * get a 0 MAC address. We try to get the MAC address
- * again here.
- */
- if (is_zero_ether_addr(&bnad->perm_addr.mac[0])) {
- bna_port_mac_get(&bnad->bna.port, &bnad->perm_addr);
- bnad_set_netdev_perm_addr(bnad);
- }
-
- set_bit(BNAD_TXQ_TX_STARTED, &tcb->flags);
-
- if (netif_carrier_ok(bnad->netdev)) {
- pr_info("bna: %s TX_STARTED\n", bnad->netdev->name);
- netif_wake_queue(bnad->netdev);
- BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
- }
-}
-
-static void
-bnad_cb_tx_cleanup(struct bnad *bnad, struct bna_tcb *tcb)
-{
- /* Delay only once for the whole Tx Path Shutdown */
- if (!test_and_set_bit(BNAD_RF_TX_SHUTDOWN_DELAYED, &bnad->run_flags))
- mdelay(BNAD_TXRX_SYNC_MDELAY);
-}
-
-static void
-bnad_cb_rx_cleanup(struct bnad *bnad,
- struct bna_ccb *ccb)
-{
- clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags);
-
- if (ccb->rcb[1])
- clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[1]->flags);
-
- if (!test_and_set_bit(BNAD_RF_RX_SHUTDOWN_DELAYED, &bnad->run_flags))
- mdelay(BNAD_TXRX_SYNC_MDELAY);
-}
-
-static void
-bnad_cb_rx_post(struct bnad *bnad, struct bna_rcb *rcb)
-{
- struct bnad_unmap_q *unmap_q = rcb->unmap_q;
-
- clear_bit(BNAD_RF_RX_SHUTDOWN_DELAYED, &bnad->run_flags);
-
- if (rcb == rcb->cq->ccb->rcb[0])
- bnad_cq_cmpl_init(bnad, rcb->cq->ccb);
-
- bnad_free_all_rxbufs(bnad, rcb);
-
- set_bit(BNAD_RXQ_STARTED, &rcb->flags);
-
- /* Now allocate & post buffers for this RCB */
- /* !!Allocation in callback context */
- if (!test_and_set_bit(BNAD_RXQ_REFILL, &rcb->flags)) {
- if (BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth)
- >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT)
- bnad_alloc_n_post_rxbufs(bnad, rcb);
- smp_mb__before_clear_bit();
- clear_bit(BNAD_RXQ_REFILL, &rcb->flags);
- }
-}
-
-static void
-bnad_cb_rx_disabled(void *arg, struct bna_rx *rx,
- enum bna_cb_status status)
-{
- struct bnad *bnad = (struct bnad *)arg;
-
- complete(&bnad->bnad_completions.rx_comp);
-}
-
-static void
-bnad_cb_rx_mcast_add(struct bnad *bnad, struct bna_rx *rx,
- enum bna_cb_status status)
-{
- bnad->bnad_completions.mcast_comp_status = status;
- complete(&bnad->bnad_completions.mcast_comp);
-}
-
-void
-bnad_cb_stats_get(struct bnad *bnad, enum bna_cb_status status,
- struct bna_stats *stats)
-{
- if (status == BNA_CB_SUCCESS)
- BNAD_UPDATE_CTR(bnad, hw_stats_updates);
-
- if (!netif_running(bnad->netdev) ||
- !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags))
- return;
-
- mod_timer(&bnad->stats_timer,
- jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ));
-}
-
-/* Resource allocation, free functions */
-
-static void
-bnad_mem_free(struct bnad *bnad,
- struct bna_mem_info *mem_info)
-{
- int i;
- dma_addr_t dma_pa;
-
- if (mem_info->mdl == NULL)
- return;
-
- for (i = 0; i < mem_info->num; i++) {
- if (mem_info->mdl[i].kva != NULL) {
- if (mem_info->mem_type == BNA_MEM_T_DMA) {
- BNA_GET_DMA_ADDR(&(mem_info->mdl[i].dma),
- dma_pa);
- dma_free_coherent(&bnad->pcidev->dev,
- mem_info->mdl[i].len,
- mem_info->mdl[i].kva, dma_pa);
- } else
- kfree(mem_info->mdl[i].kva);
- }
- }
- kfree(mem_info->mdl);
- mem_info->mdl = NULL;
-}
-
-static int
-bnad_mem_alloc(struct bnad *bnad,
- struct bna_mem_info *mem_info)
-{
- int i;
- dma_addr_t dma_pa;
-
- if ((mem_info->num == 0) || (mem_info->len == 0)) {
- mem_info->mdl = NULL;
- return 0;
- }
-
- mem_info->mdl = kcalloc(mem_info->num, sizeof(struct bna_mem_descr),
- GFP_KERNEL);
- if (mem_info->mdl == NULL)
- return -ENOMEM;
-
- if (mem_info->mem_type == BNA_MEM_T_DMA) {
- for (i = 0; i < mem_info->num; i++) {
- mem_info->mdl[i].len = mem_info->len;
- mem_info->mdl[i].kva =
- dma_alloc_coherent(&bnad->pcidev->dev,
- mem_info->len, &dma_pa,
- GFP_KERNEL);
-
- if (mem_info->mdl[i].kva == NULL)
- goto err_return;
-
- BNA_SET_DMA_ADDR(dma_pa,
- &(mem_info->mdl[i].dma));
- }
- } else {
- for (i = 0; i < mem_info->num; i++) {
- mem_info->mdl[i].len = mem_info->len;
- mem_info->mdl[i].kva = kzalloc(mem_info->len,
- GFP_KERNEL);
- if (mem_info->mdl[i].kva == NULL)
- goto err_return;
- }
- }
-
- return 0;
-
-err_return:
- bnad_mem_free(bnad, mem_info);
- return -ENOMEM;
-}
-
-/* Free IRQ for Mailbox */
-static void
-bnad_mbox_irq_free(struct bnad *bnad,
- struct bna_intr_info *intr_info)
-{
- int irq;
- unsigned long flags;
-
- if (intr_info->idl == NULL)
- return;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bnad_disable_mbox_irq(bnad);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- irq = BNAD_GET_MBOX_IRQ(bnad);
- free_irq(irq, bnad);
-
- kfree(intr_info->idl);
-}
-
-/*
- * Allocates IRQ for Mailbox, but keep it disabled
- * This will be enabled once we get the mbox enable callback
- * from bna
- */
-static int
-bnad_mbox_irq_alloc(struct bnad *bnad,
- struct bna_intr_info *intr_info)
-{
- int err = 0;
- unsigned long irq_flags, flags;
- u32 irq;
- irq_handler_t irq_handler;
-
- /* Mbox should use only 1 vector */
-
- intr_info->idl = kzalloc(sizeof(*(intr_info->idl)), GFP_KERNEL);
- if (!intr_info->idl)
- return -ENOMEM;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- if (bnad->cfg_flags & BNAD_CF_MSIX) {
- irq_handler = (irq_handler_t)bnad_msix_mbox_handler;
- irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector;
- irq_flags = 0;
- intr_info->intr_type = BNA_INTR_T_MSIX;
- intr_info->idl[0].vector = BNAD_MAILBOX_MSIX_INDEX;
- } else {
- irq_handler = (irq_handler_t)bnad_isr;
- irq = bnad->pcidev->irq;
- irq_flags = IRQF_SHARED;
- intr_info->intr_type = BNA_INTR_T_INTX;
- }
-
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
- sprintf(bnad->mbox_irq_name, "%s", BNAD_NAME);
-
- /*
- * Set the Mbox IRQ disable flag, so that the IRQ handler
- * called from request_irq() for SHARED IRQs do not execute
- */
- set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags);
-
- BNAD_UPDATE_CTR(bnad, mbox_intr_disabled);
-
- err = request_irq(irq, irq_handler, irq_flags,
- bnad->mbox_irq_name, bnad);
-
- if (err) {
- kfree(intr_info->idl);
- intr_info->idl = NULL;
- }
-
- return err;
-}
-
-static void
-bnad_txrx_irq_free(struct bnad *bnad, struct bna_intr_info *intr_info)
-{
- kfree(intr_info->idl);
- intr_info->idl = NULL;
-}
-
-/* Allocates Interrupt Descriptor List for MSIX/INT-X vectors */
-static int
-bnad_txrx_irq_alloc(struct bnad *bnad, enum bnad_intr_source src,
- uint txrx_id, struct bna_intr_info *intr_info)
-{
- int i, vector_start = 0;
- u32 cfg_flags;
- unsigned long flags;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- cfg_flags = bnad->cfg_flags;
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- if (cfg_flags & BNAD_CF_MSIX) {
- intr_info->intr_type = BNA_INTR_T_MSIX;
- intr_info->idl = kcalloc(intr_info->num,
- sizeof(struct bna_intr_descr),
- GFP_KERNEL);
- if (!intr_info->idl)
- return -ENOMEM;
-
- switch (src) {
- case BNAD_INTR_TX:
- vector_start = BNAD_MAILBOX_MSIX_VECTORS + txrx_id;
- break;
-
- case BNAD_INTR_RX:
- vector_start = BNAD_MAILBOX_MSIX_VECTORS +
- (bnad->num_tx * bnad->num_txq_per_tx) +
- txrx_id;
- break;
-
- default:
- BUG();
- }
-
- for (i = 0; i < intr_info->num; i++)
- intr_info->idl[i].vector = vector_start + i;
- } else {
- intr_info->intr_type = BNA_INTR_T_INTX;
- intr_info->num = 1;
- intr_info->idl = kcalloc(intr_info->num,
- sizeof(struct bna_intr_descr),
- GFP_KERNEL);
- if (!intr_info->idl)
- return -ENOMEM;
-
- switch (src) {
- case BNAD_INTR_TX:
- intr_info->idl[0].vector = BNAD_INTX_TX_IB_BITMASK;
- break;
-
- case BNAD_INTR_RX:
- intr_info->idl[0].vector = BNAD_INTX_RX_IB_BITMASK;
- break;
- }
- }
- return 0;
-}
-
-/**
- * NOTE: Should be called for MSIX only
- * Unregisters Tx MSIX vector(s) from the kernel
- */
-static void
-bnad_tx_msix_unregister(struct bnad *bnad, struct bnad_tx_info *tx_info,
- int num_txqs)
-{
- int i;
- int vector_num;
-
- for (i = 0; i < num_txqs; i++) {
- if (tx_info->tcb[i] == NULL)
- continue;
-
- vector_num = tx_info->tcb[i]->intr_vector;
- free_irq(bnad->msix_table[vector_num].vector, tx_info->tcb[i]);
- }
-}
-
-/**
- * NOTE: Should be called for MSIX only
- * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel
- */
-static int
-bnad_tx_msix_register(struct bnad *bnad, struct bnad_tx_info *tx_info,
- uint tx_id, int num_txqs)
-{
- int i;
- int err;
- int vector_num;
-
- for (i = 0; i < num_txqs; i++) {
- vector_num = tx_info->tcb[i]->intr_vector;
- sprintf(tx_info->tcb[i]->name, "%s TXQ %d", bnad->netdev->name,
- tx_id + tx_info->tcb[i]->id);
- err = request_irq(bnad->msix_table[vector_num].vector,
- (irq_handler_t)bnad_msix_tx, 0,
- tx_info->tcb[i]->name,
- tx_info->tcb[i]);
- if (err)
- goto err_return;
- }
-
- return 0;
-
-err_return:
- if (i > 0)
- bnad_tx_msix_unregister(bnad, tx_info, (i - 1));
- return -1;
-}
-
-/**
- * NOTE: Should be called for MSIX only
- * Unregisters Rx MSIX vector(s) from the kernel
- */
-static void
-bnad_rx_msix_unregister(struct bnad *bnad, struct bnad_rx_info *rx_info,
- int num_rxps)
-{
- int i;
- int vector_num;
-
- for (i = 0; i < num_rxps; i++) {
- if (rx_info->rx_ctrl[i].ccb == NULL)
- continue;
-
- vector_num = rx_info->rx_ctrl[i].ccb->intr_vector;
- free_irq(bnad->msix_table[vector_num].vector,
- rx_info->rx_ctrl[i].ccb);
- }
-}
-
-/**
- * NOTE: Should be called for MSIX only
- * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel
- */
-static int
-bnad_rx_msix_register(struct bnad *bnad, struct bnad_rx_info *rx_info,
- uint rx_id, int num_rxps)
-{
- int i;
- int err;
- int vector_num;
-
- for (i = 0; i < num_rxps; i++) {
- vector_num = rx_info->rx_ctrl[i].ccb->intr_vector;
- sprintf(rx_info->rx_ctrl[i].ccb->name, "%s CQ %d",
- bnad->netdev->name,
- rx_id + rx_info->rx_ctrl[i].ccb->id);
- err = request_irq(bnad->msix_table[vector_num].vector,
- (irq_handler_t)bnad_msix_rx, 0,
- rx_info->rx_ctrl[i].ccb->name,
- rx_info->rx_ctrl[i].ccb);
- if (err)
- goto err_return;
- }
-
- return 0;
-
-err_return:
- if (i > 0)
- bnad_rx_msix_unregister(bnad, rx_info, (i - 1));
- return -1;
-}
-
-/* Free Tx object Resources */
-static void
-bnad_tx_res_free(struct bnad *bnad, struct bna_res_info *res_info)
-{
- int i;
-
- for (i = 0; i < BNA_TX_RES_T_MAX; i++) {
- if (res_info[i].res_type == BNA_RES_T_MEM)
- bnad_mem_free(bnad, &res_info[i].res_u.mem_info);
- else if (res_info[i].res_type == BNA_RES_T_INTR)
- bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info);
- }
-}
-
-/* Allocates memory and interrupt resources for Tx object */
-static int
-bnad_tx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info,
- uint tx_id)
-{
- int i, err = 0;
-
- for (i = 0; i < BNA_TX_RES_T_MAX; i++) {
- if (res_info[i].res_type == BNA_RES_T_MEM)
- err = bnad_mem_alloc(bnad,
- &res_info[i].res_u.mem_info);
- else if (res_info[i].res_type == BNA_RES_T_INTR)
- err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_TX, tx_id,
- &res_info[i].res_u.intr_info);
- if (err)
- goto err_return;
- }
- return 0;
-
-err_return:
- bnad_tx_res_free(bnad, res_info);
- return err;
-}
-
-/* Free Rx object Resources */
-static void
-bnad_rx_res_free(struct bnad *bnad, struct bna_res_info *res_info)
-{
- int i;
-
- for (i = 0; i < BNA_RX_RES_T_MAX; i++) {
- if (res_info[i].res_type == BNA_RES_T_MEM)
- bnad_mem_free(bnad, &res_info[i].res_u.mem_info);
- else if (res_info[i].res_type == BNA_RES_T_INTR)
- bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info);
- }
-}
-
-/* Allocates memory and interrupt resources for Rx object */
-static int
-bnad_rx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info,
- uint rx_id)
-{
- int i, err = 0;
-
- /* All memory needs to be allocated before setup_ccbs */
- for (i = 0; i < BNA_RX_RES_T_MAX; i++) {
- if (res_info[i].res_type == BNA_RES_T_MEM)
- err = bnad_mem_alloc(bnad,
- &res_info[i].res_u.mem_info);
- else if (res_info[i].res_type == BNA_RES_T_INTR)
- err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_RX, rx_id,
- &res_info[i].res_u.intr_info);
- if (err)
- goto err_return;
- }
- return 0;
-
-err_return:
- bnad_rx_res_free(bnad, res_info);
- return err;
-}
-
-/* Timer callbacks */
-/* a) IOC timer */
-static void
-bnad_ioc_timeout(unsigned long data)
-{
- struct bnad *bnad = (struct bnad *)data;
- unsigned long flags;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bfa_nw_ioc_timeout((void *) &bnad->bna.device.ioc);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-}
-
-static void
-bnad_ioc_hb_check(unsigned long data)
-{
- struct bnad *bnad = (struct bnad *)data;
- unsigned long flags;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bfa_nw_ioc_hb_check((void *) &bnad->bna.device.ioc);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-}
-
-static void
-bnad_iocpf_timeout(unsigned long data)
-{
- struct bnad *bnad = (struct bnad *)data;
- unsigned long flags;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bfa_nw_iocpf_timeout((void *) &bnad->bna.device.ioc);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-}
-
-static void
-bnad_iocpf_sem_timeout(unsigned long data)
-{
- struct bnad *bnad = (struct bnad *)data;
- unsigned long flags;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bfa_nw_iocpf_sem_timeout((void *) &bnad->bna.device.ioc);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-}
-
-/*
- * All timer routines use bnad->bna_lock to protect against
- * the following race, which may occur in case of no locking:
- * Time CPU m CPU n
- * 0 1 = test_bit
- * 1 clear_bit
- * 2 del_timer_sync
- * 3 mod_timer
- */
-
-/* b) Dynamic Interrupt Moderation Timer */
-static void
-bnad_dim_timeout(unsigned long data)
-{
- struct bnad *bnad = (struct bnad *)data;
- struct bnad_rx_info *rx_info;
- struct bnad_rx_ctrl *rx_ctrl;
- int i, j;
- unsigned long flags;
-
- if (!netif_carrier_ok(bnad->netdev))
- return;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- for (i = 0; i < bnad->num_rx; i++) {
- rx_info = &bnad->rx_info[i];
- if (!rx_info->rx)
- continue;
- for (j = 0; j < bnad->num_rxp_per_rx; j++) {
- rx_ctrl = &rx_info->rx_ctrl[j];
- if (!rx_ctrl->ccb)
- continue;
- bna_rx_dim_update(rx_ctrl->ccb);
- }
- }
-
- /* Check for BNAD_CF_DIM_ENABLED, does not eleminate a race */
- if (test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags))
- mod_timer(&bnad->dim_timer,
- jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ));
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-}
-
-/* c) Statistics Timer */
-static void
-bnad_stats_timeout(unsigned long data)
-{
- struct bnad *bnad = (struct bnad *)data;
- unsigned long flags;
-
- if (!netif_running(bnad->netdev) ||
- !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags))
- return;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_stats_get(&bnad->bna);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-}
-
-/*
- * Set up timer for DIM
- * Called with bnad->bna_lock held
- */
-void
-bnad_dim_timer_start(struct bnad *bnad)
-{
- if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED &&
- !test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) {
- setup_timer(&bnad->dim_timer, bnad_dim_timeout,
- (unsigned long)bnad);
- set_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags);
- mod_timer(&bnad->dim_timer,
- jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ));
- }
-}
-
-/*
- * Set up timer for statistics
- * Called with mutex_lock(&bnad->conf_mutex) held
- */
-static void
-bnad_stats_timer_start(struct bnad *bnad)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- if (!test_and_set_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) {
- setup_timer(&bnad->stats_timer, bnad_stats_timeout,
- (unsigned long)bnad);
- mod_timer(&bnad->stats_timer,
- jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ));
- }
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-}
-
-/*
- * Stops the stats timer
- * Called with mutex_lock(&bnad->conf_mutex) held
- */
-static void
-bnad_stats_timer_stop(struct bnad *bnad)
-{
- int to_del = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- if (test_and_clear_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags))
- to_del = 1;
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
- if (to_del)
- del_timer_sync(&bnad->stats_timer);
-}
-
-/* Utilities */
-
-static void
-bnad_netdev_mc_list_get(struct net_device *netdev, u8 *mc_list)
-{
- int i = 1; /* Index 0 has broadcast address */
- struct netdev_hw_addr *mc_addr;
-
- netdev_for_each_mc_addr(mc_addr, netdev) {
- memcpy(&mc_list[i * ETH_ALEN], &mc_addr->addr[0],
- ETH_ALEN);
- i++;
- }
-}
-
-static int
-bnad_napi_poll_rx(struct napi_struct *napi, int budget)
-{
- struct bnad_rx_ctrl *rx_ctrl =
- container_of(napi, struct bnad_rx_ctrl, napi);
- struct bna_ccb *ccb;
- struct bnad *bnad;
- int rcvd = 0;
-
- ccb = rx_ctrl->ccb;
-
- bnad = ccb->bnad;
-
- if (!netif_carrier_ok(bnad->netdev))
- goto poll_exit;
-
- rcvd = bnad_poll_cq(bnad, ccb, budget);
- if (rcvd == budget)
- return rcvd;
-
-poll_exit:
- napi_complete((napi));
-
- BNAD_UPDATE_CTR(bnad, netif_rx_complete);
-
- bnad_enable_rx_irq(bnad, ccb);
- return rcvd;
-}
-
-static void
-bnad_napi_enable(struct bnad *bnad, u32 rx_id)
-{
- struct bnad_rx_ctrl *rx_ctrl;
- int i;
-
- /* Initialize & enable NAPI */
- for (i = 0; i < bnad->num_rxp_per_rx; i++) {
- rx_ctrl = &bnad->rx_info[rx_id].rx_ctrl[i];
-
- netif_napi_add(bnad->netdev, &rx_ctrl->napi,
- bnad_napi_poll_rx, 64);
-
- napi_enable(&rx_ctrl->napi);
- }
-}
-
-static void
-bnad_napi_disable(struct bnad *bnad, u32 rx_id)
-{
- int i;
-
- /* First disable and then clean up */
- for (i = 0; i < bnad->num_rxp_per_rx; i++) {
- napi_disable(&bnad->rx_info[rx_id].rx_ctrl[i].napi);
- netif_napi_del(&bnad->rx_info[rx_id].rx_ctrl[i].napi);
- }
-}
-
-/* Should be held with conf_lock held */
-void
-bnad_cleanup_tx(struct bnad *bnad, uint tx_id)
-{
- struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id];
- struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0];
- unsigned long flags;
-
- if (!tx_info->tx)
- return;
-
- init_completion(&bnad->bnad_completions.tx_comp);
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_tx_disable(tx_info->tx, BNA_HARD_CLEANUP, bnad_cb_tx_disabled);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
- wait_for_completion(&bnad->bnad_completions.tx_comp);
-
- if (tx_info->tcb[0]->intr_type == BNA_INTR_T_MSIX)
- bnad_tx_msix_unregister(bnad, tx_info,
- bnad->num_txq_per_tx);
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_tx_destroy(tx_info->tx);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- tx_info->tx = NULL;
-
- if (0 == tx_id)
- tasklet_kill(&bnad->tx_free_tasklet);
-
- bnad_tx_res_free(bnad, res_info);
-}
-
-/* Should be held with conf_lock held */
-int
-bnad_setup_tx(struct bnad *bnad, uint tx_id)
-{
- int err;
- struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id];
- struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0];
- struct bna_intr_info *intr_info =
- &res_info[BNA_TX_RES_INTR_T_TXCMPL].res_u.intr_info;
- struct bna_tx_config *tx_config = &bnad->tx_config[tx_id];
- struct bna_tx_event_cbfn tx_cbfn;
- struct bna_tx *tx;
- unsigned long flags;
-
- /* Initialize the Tx object configuration */
- tx_config->num_txq = bnad->num_txq_per_tx;
- tx_config->txq_depth = bnad->txq_depth;
- tx_config->tx_type = BNA_TX_T_REGULAR;
-
- /* Initialize the tx event handlers */
- tx_cbfn.tcb_setup_cbfn = bnad_cb_tcb_setup;
- tx_cbfn.tcb_destroy_cbfn = bnad_cb_tcb_destroy;
- tx_cbfn.tx_stall_cbfn = bnad_cb_tx_stall;
- tx_cbfn.tx_resume_cbfn = bnad_cb_tx_resume;
- tx_cbfn.tx_cleanup_cbfn = bnad_cb_tx_cleanup;
-
- /* Get BNA's resource requirement for one tx object */
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_tx_res_req(bnad->num_txq_per_tx,
- bnad->txq_depth, res_info);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- /* Fill Unmap Q memory requirements */
- BNAD_FILL_UNMAPQ_MEM_REQ(
- &res_info[BNA_TX_RES_MEM_T_UNMAPQ],
- bnad->num_txq_per_tx,
- BNAD_TX_UNMAPQ_DEPTH);
-
- /* Allocate resources */
- err = bnad_tx_res_alloc(bnad, res_info, tx_id);
- if (err)
- return err;
-
- /* Ask BNA to create one Tx object, supplying required resources */
- spin_lock_irqsave(&bnad->bna_lock, flags);
- tx = bna_tx_create(&bnad->bna, bnad, tx_config, &tx_cbfn, res_info,
- tx_info);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
- if (!tx)
- goto err_return;
- tx_info->tx = tx;
-
- /* Register ISR for the Tx object */
- if (intr_info->intr_type == BNA_INTR_T_MSIX) {
- err = bnad_tx_msix_register(bnad, tx_info,
- tx_id, bnad->num_txq_per_tx);
- if (err)
- goto err_return;
- }
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_tx_enable(tx);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- return 0;
-
-err_return:
- bnad_tx_res_free(bnad, res_info);
- return err;
-}
-
-/* Setup the rx config for bna_rx_create */
-/* bnad decides the configuration */
-static void
-bnad_init_rx_config(struct bnad *bnad, struct bna_rx_config *rx_config)
-{
- rx_config->rx_type = BNA_RX_T_REGULAR;
- rx_config->num_paths = bnad->num_rxp_per_rx;
-
- if (bnad->num_rxp_per_rx > 1) {
- rx_config->rss_status = BNA_STATUS_T_ENABLED;
- rx_config->rss_config.hash_type =
- (BFI_RSS_T_V4_TCP |
- BFI_RSS_T_V6_TCP |
- BFI_RSS_T_V4_IP |
- BFI_RSS_T_V6_IP);
- rx_config->rss_config.hash_mask =
- bnad->num_rxp_per_rx - 1;
- get_random_bytes(rx_config->rss_config.toeplitz_hash_key,
- sizeof(rx_config->rss_config.toeplitz_hash_key));
- } else {
- rx_config->rss_status = BNA_STATUS_T_DISABLED;
- memset(&rx_config->rss_config, 0,
- sizeof(rx_config->rss_config));
- }
- rx_config->rxp_type = BNA_RXP_SLR;
- rx_config->q_depth = bnad->rxq_depth;
-
- rx_config->small_buff_size = BFI_SMALL_RXBUF_SIZE;
-
- rx_config->vlan_strip_status = BNA_STATUS_T_ENABLED;
-}
-
-/* Called with mutex_lock(&bnad->conf_mutex) held */
-void
-bnad_cleanup_rx(struct bnad *bnad, uint rx_id)
-{
- struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id];
- struct bna_rx_config *rx_config = &bnad->rx_config[rx_id];
- struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0];
- unsigned long flags;
- int dim_timer_del = 0;
-
- if (!rx_info->rx)
- return;
-
- if (0 == rx_id) {
- spin_lock_irqsave(&bnad->bna_lock, flags);
- dim_timer_del = bnad_dim_timer_running(bnad);
- if (dim_timer_del)
- clear_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
- if (dim_timer_del)
- del_timer_sync(&bnad->dim_timer);
- }
-
- bnad_napi_disable(bnad, rx_id);
-
- init_completion(&bnad->bnad_completions.rx_comp);
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_rx_disable(rx_info->rx, BNA_HARD_CLEANUP, bnad_cb_rx_disabled);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
- wait_for_completion(&bnad->bnad_completions.rx_comp);
-
- if (rx_info->rx_ctrl[0].ccb->intr_type == BNA_INTR_T_MSIX)
- bnad_rx_msix_unregister(bnad, rx_info, rx_config->num_paths);
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_rx_destroy(rx_info->rx);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- rx_info->rx = NULL;
-
- bnad_rx_res_free(bnad, res_info);
-}
-
-/* Called with mutex_lock(&bnad->conf_mutex) held */
-int
-bnad_setup_rx(struct bnad *bnad, uint rx_id)
-{
- int err;
- struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id];
- struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0];
- struct bna_intr_info *intr_info =
- &res_info[BNA_RX_RES_T_INTR].res_u.intr_info;
- struct bna_rx_config *rx_config = &bnad->rx_config[rx_id];
- struct bna_rx_event_cbfn rx_cbfn;
- struct bna_rx *rx;
- unsigned long flags;
-
- /* Initialize the Rx object configuration */
- bnad_init_rx_config(bnad, rx_config);
-
- /* Initialize the Rx event handlers */
- rx_cbfn.rcb_setup_cbfn = bnad_cb_rcb_setup;
- rx_cbfn.rcb_destroy_cbfn = bnad_cb_rcb_destroy;
- rx_cbfn.ccb_setup_cbfn = bnad_cb_ccb_setup;
- rx_cbfn.ccb_destroy_cbfn = bnad_cb_ccb_destroy;
- rx_cbfn.rx_cleanup_cbfn = bnad_cb_rx_cleanup;
- rx_cbfn.rx_post_cbfn = bnad_cb_rx_post;
-
- /* Get BNA's resource requirement for one Rx object */
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_rx_res_req(rx_config, res_info);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- /* Fill Unmap Q memory requirements */
- BNAD_FILL_UNMAPQ_MEM_REQ(
- &res_info[BNA_RX_RES_MEM_T_UNMAPQ],
- rx_config->num_paths +
- ((rx_config->rxp_type == BNA_RXP_SINGLE) ? 0 :
- rx_config->num_paths), BNAD_RX_UNMAPQ_DEPTH);
-
- /* Allocate resource */
- err = bnad_rx_res_alloc(bnad, res_info, rx_id);
- if (err)
- return err;
-
- /* Ask BNA to create one Rx object, supplying required resources */
- spin_lock_irqsave(&bnad->bna_lock, flags);
- rx = bna_rx_create(&bnad->bna, bnad, rx_config, &rx_cbfn, res_info,
- rx_info);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
- if (!rx)
- goto err_return;
- rx_info->rx = rx;
-
- /* Register ISR for the Rx object */
- if (intr_info->intr_type == BNA_INTR_T_MSIX) {
- err = bnad_rx_msix_register(bnad, rx_info, rx_id,
- rx_config->num_paths);
- if (err)
- goto err_return;
- }
-
- /* Enable NAPI */
- bnad_napi_enable(bnad, rx_id);
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- if (0 == rx_id) {
- /* Set up Dynamic Interrupt Moderation Vector */
- if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED)
- bna_rx_dim_reconfig(&bnad->bna, bna_napi_dim_vector);
-
- /* Enable VLAN filtering only on the default Rx */
- bna_rx_vlanfilter_enable(rx);
-
- /* Start the DIM timer */
- bnad_dim_timer_start(bnad);
- }
-
- bna_rx_enable(rx);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- return 0;
-
-err_return:
- bnad_cleanup_rx(bnad, rx_id);
- return err;
-}
-
-/* Called with conf_lock & bnad->bna_lock held */
-void
-bnad_tx_coalescing_timeo_set(struct bnad *bnad)
-{
- struct bnad_tx_info *tx_info;
-
- tx_info = &bnad->tx_info[0];
- if (!tx_info->tx)
- return;
-
- bna_tx_coalescing_timeo_set(tx_info->tx, bnad->tx_coalescing_timeo);
-}
-
-/* Called with conf_lock & bnad->bna_lock held */
-void
-bnad_rx_coalescing_timeo_set(struct bnad *bnad)
-{
- struct bnad_rx_info *rx_info;
- int i;
-
- for (i = 0; i < bnad->num_rx; i++) {
- rx_info = &bnad->rx_info[i];
- if (!rx_info->rx)
- continue;
- bna_rx_coalescing_timeo_set(rx_info->rx,
- bnad->rx_coalescing_timeo);
- }
-}
-
-/*
- * Called with bnad->bna_lock held
- */
-static int
-bnad_mac_addr_set_locked(struct bnad *bnad, u8 *mac_addr)
-{
- int ret;
-
- if (!is_valid_ether_addr(mac_addr))
- return -EADDRNOTAVAIL;
-
- /* If datapath is down, pretend everything went through */
- if (!bnad->rx_info[0].rx)
- return 0;
-
- ret = bna_rx_ucast_set(bnad->rx_info[0].rx, mac_addr, NULL);
- if (ret != BNA_CB_SUCCESS)
- return -EADDRNOTAVAIL;
-
- return 0;
-}
-
-/* Should be called with conf_lock held */
-static int
-bnad_enable_default_bcast(struct bnad *bnad)
-{
- struct bnad_rx_info *rx_info = &bnad->rx_info[0];
- int ret;
- unsigned long flags;
-
- init_completion(&bnad->bnad_completions.mcast_comp);
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- ret = bna_rx_mcast_add(rx_info->rx, (u8 *)bnad_bcast_addr,
- bnad_cb_rx_mcast_add);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- if (ret == BNA_CB_SUCCESS)
- wait_for_completion(&bnad->bnad_completions.mcast_comp);
- else
- return -ENODEV;
-
- if (bnad->bnad_completions.mcast_comp_status != BNA_CB_SUCCESS)
- return -ENODEV;
-
- return 0;
-}
-
-/* Called with bnad_conf_lock() held */
-static void
-bnad_restore_vlans(struct bnad *bnad, u32 rx_id)
-{
- u16 vid;
- unsigned long flags;
-
- BUG_ON(!(VLAN_N_VID == (BFI_MAX_VLAN + 1)));
-
- for_each_set_bit(vid, bnad->active_vlans, VLAN_N_VID) {
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_rx_vlan_add(bnad->rx_info[rx_id].rx, vid);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
- }
-}
-
-/* Statistics utilities */
-void
-bnad_netdev_qstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats)
-{
- int i, j;
-
- for (i = 0; i < bnad->num_rx; i++) {
- for (j = 0; j < bnad->num_rxp_per_rx; j++) {
- if (bnad->rx_info[i].rx_ctrl[j].ccb) {
- stats->rx_packets += bnad->rx_info[i].
- rx_ctrl[j].ccb->rcb[0]->rxq->rx_packets;
- stats->rx_bytes += bnad->rx_info[i].
- rx_ctrl[j].ccb->rcb[0]->rxq->rx_bytes;
- if (bnad->rx_info[i].rx_ctrl[j].ccb->rcb[1] &&
- bnad->rx_info[i].rx_ctrl[j].ccb->
- rcb[1]->rxq) {
- stats->rx_packets +=
- bnad->rx_info[i].rx_ctrl[j].
- ccb->rcb[1]->rxq->rx_packets;
- stats->rx_bytes +=
- bnad->rx_info[i].rx_ctrl[j].
- ccb->rcb[1]->rxq->rx_bytes;
- }
- }
- }
- }
- for (i = 0; i < bnad->num_tx; i++) {
- for (j = 0; j < bnad->num_txq_per_tx; j++) {
- if (bnad->tx_info[i].tcb[j]) {
- stats->tx_packets +=
- bnad->tx_info[i].tcb[j]->txq->tx_packets;
- stats->tx_bytes +=
- bnad->tx_info[i].tcb[j]->txq->tx_bytes;
- }
- }
- }
-}
-
-/*
- * Must be called with the bna_lock held.
- */
-void
-bnad_netdev_hwstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats)
-{
- struct bfi_ll_stats_mac *mac_stats;
- u64 bmap;
- int i;
-
- mac_stats = &bnad->stats.bna_stats->hw_stats->mac_stats;
- stats->rx_errors =
- mac_stats->rx_fcs_error + mac_stats->rx_alignment_error +
- mac_stats->rx_frame_length_error + mac_stats->rx_code_error +
- mac_stats->rx_undersize;
- stats->tx_errors = mac_stats->tx_fcs_error +
- mac_stats->tx_undersize;
- stats->rx_dropped = mac_stats->rx_drop;
- stats->tx_dropped = mac_stats->tx_drop;
- stats->multicast = mac_stats->rx_multicast;
- stats->collisions = mac_stats->tx_total_collision;
-
- stats->rx_length_errors = mac_stats->rx_frame_length_error;
-
- /* receive ring buffer overflow ?? */
-
- stats->rx_crc_errors = mac_stats->rx_fcs_error;
- stats->rx_frame_errors = mac_stats->rx_alignment_error;
- /* recv'r fifo overrun */
- bmap = (u64)bnad->stats.bna_stats->rxf_bmap[0] |
- ((u64)bnad->stats.bna_stats->rxf_bmap[1] << 32);
- for (i = 0; bmap && (i < BFI_LL_RXF_ID_MAX); i++) {
- if (bmap & 1) {
- stats->rx_fifo_errors +=
- bnad->stats.bna_stats->
- hw_stats->rxf_stats[i].frame_drops;
- break;
- }
- bmap >>= 1;
- }
-}
-
-static void
-bnad_mbox_irq_sync(struct bnad *bnad)
-{
- u32 irq;
- unsigned long flags;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- if (bnad->cfg_flags & BNAD_CF_MSIX)
- irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector;
- else
- irq = bnad->pcidev->irq;
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- synchronize_irq(irq);
-}
-
-/* Utility used by bnad_start_xmit, for doing TSO */
-static int
-bnad_tso_prepare(struct bnad *bnad, struct sk_buff *skb)
-{
- int err;
-
- /* SKB_GSO_TCPV4 and SKB_GSO_TCPV6 is defined since 2.6.18. */
- 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_UPDATE_CTR(bnad, 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);
-
- /* Do we really need these? */
- iph->tot_len = 0;
- iph->check = 0;
-
- tcp_hdr(skb)->check =
- ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0,
- IPPROTO_TCP, 0);
- BNAD_UPDATE_CTR(bnad, tso4);
- } else {
- struct ipv6hdr *ipv6h = ipv6_hdr(skb);
-
- BUG_ON(!(skb->protocol == htons(ETH_P_IPV6)));
- ipv6h->payload_len = 0;
- tcp_hdr(skb)->check =
- ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, 0,
- IPPROTO_TCP, 0);
- BNAD_UPDATE_CTR(bnad, tso6);
- }
-
- return 0;
-}
-
-/*
- * Initialize Q numbers depending on Rx Paths
- * Called with bnad->bna_lock held, because of cfg_flags
- * access.
- */
-static void
-bnad_q_num_init(struct bnad *bnad)
-{
- int rxps;
-
- rxps = min((uint)num_online_cpus(),
- (uint)(BNAD_MAX_RXS * BNAD_MAX_RXPS_PER_RX));
-
- if (!(bnad->cfg_flags & BNAD_CF_MSIX))
- rxps = 1; /* INTx */
-
- bnad->num_rx = 1;
- bnad->num_tx = 1;
- bnad->num_rxp_per_rx = rxps;
- bnad->num_txq_per_tx = BNAD_TXQ_NUM;
-}
-
-/*
- * Adjusts the Q numbers, given a number of msix vectors
- * Give preference to RSS as opposed to Tx priority Queues,
- * in such a case, just use 1 Tx Q
- * Called with bnad->bna_lock held b'cos of cfg_flags access
- */
-static void
-bnad_q_num_adjust(struct bnad *bnad, int msix_vectors)
-{
- bnad->num_txq_per_tx = 1;
- if ((msix_vectors >= (bnad->num_tx * bnad->num_txq_per_tx) +
- bnad_rxqs_per_cq + BNAD_MAILBOX_MSIX_VECTORS) &&
- (bnad->cfg_flags & BNAD_CF_MSIX)) {
- bnad->num_rxp_per_rx = msix_vectors -
- (bnad->num_tx * bnad->num_txq_per_tx) -
- BNAD_MAILBOX_MSIX_VECTORS;
- } else
- bnad->num_rxp_per_rx = 1;
-}
-
-/* Enable / disable device */
-static void
-bnad_device_disable(struct bnad *bnad)
-{
- unsigned long flags;
-
- init_completion(&bnad->bnad_completions.ioc_comp);
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_device_disable(&bnad->bna.device, BNA_HARD_CLEANUP);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- wait_for_completion(&bnad->bnad_completions.ioc_comp);
-}
-
-static int
-bnad_device_enable(struct bnad *bnad)
-{
- int err = 0;
- unsigned long flags;
-
- init_completion(&bnad->bnad_completions.ioc_comp);
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_device_enable(&bnad->bna.device);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- wait_for_completion(&bnad->bnad_completions.ioc_comp);
-
- if (bnad->bnad_completions.ioc_comp_status)
- err = bnad->bnad_completions.ioc_comp_status;
-
- return err;
-}
-
-/* Free BNA resources */
-static void
-bnad_res_free(struct bnad *bnad)
-{
- int i;
- struct bna_res_info *res_info = &bnad->res_info[0];
-
- for (i = 0; i < BNA_RES_T_MAX; i++) {
- if (res_info[i].res_type == BNA_RES_T_MEM)
- bnad_mem_free(bnad, &res_info[i].res_u.mem_info);
- else
- bnad_mbox_irq_free(bnad, &res_info[i].res_u.intr_info);
- }
-}
-
-/* Allocates memory and interrupt resources for BNA */
-static int
-bnad_res_alloc(struct bnad *bnad)
-{
- int i, err;
- struct bna_res_info *res_info = &bnad->res_info[0];
-
- for (i = 0; i < BNA_RES_T_MAX; i++) {
- if (res_info[i].res_type == BNA_RES_T_MEM)
- err = bnad_mem_alloc(bnad, &res_info[i].res_u.mem_info);
- else
- err = bnad_mbox_irq_alloc(bnad,
- &res_info[i].res_u.intr_info);
- if (err)
- goto err_return;
- }
- return 0;
-
-err_return:
- bnad_res_free(bnad);
- return err;
-}
-
-/* Interrupt enable / disable */
-static void
-bnad_enable_msix(struct bnad *bnad)
-{
- int i, ret;
- unsigned long flags;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- if (!(bnad->cfg_flags & BNAD_CF_MSIX)) {
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
- return;
- }
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- if (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. */
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- /* ret = #of vectors that we got */
- bnad_q_num_adjust(bnad, ret);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- bnad->msix_num = (bnad->num_tx * bnad->num_txq_per_tx)
- + (bnad->num_rx
- * bnad->num_rxp_per_rx) +
- BNAD_MAILBOX_MSIX_VECTORS;
-
- /* Try once more with adjusted numbers */
- /* If this fails, fall back to INTx */
- ret = pci_enable_msix(bnad->pcidev, bnad->msix_table,
- bnad->msix_num);
- if (ret)
- goto intx_mode;
-
- } else if (ret < 0)
- goto intx_mode;
- return;
-
-intx_mode:
-
- kfree(bnad->msix_table);
- bnad->msix_table = NULL;
- bnad->msix_num = 0;
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bnad->cfg_flags &= ~BNAD_CF_MSIX;
- bnad_q_num_init(bnad);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-}
-
-static void
-bnad_disable_msix(struct bnad *bnad)
-{
- u32 cfg_flags;
- unsigned long flags;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- cfg_flags = bnad->cfg_flags;
- if (bnad->cfg_flags & BNAD_CF_MSIX)
- bnad->cfg_flags &= ~BNAD_CF_MSIX;
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- if (cfg_flags & BNAD_CF_MSIX) {
- pci_disable_msix(bnad->pcidev);
- kfree(bnad->msix_table);
- bnad->msix_table = NULL;
- }
-}
-
-/* Netdev entry points */
-static int
-bnad_open(struct net_device *netdev)
-{
- int err;
- struct bnad *bnad = netdev_priv(netdev);
- struct bna_pause_config pause_config;
- int mtu;
- unsigned long flags;
-
- mutex_lock(&bnad->conf_mutex);
-
- /* Tx */
- err = bnad_setup_tx(bnad, 0);
- if (err)
- goto err_return;
-
- /* Rx */
- err = bnad_setup_rx(bnad, 0);
- if (err)
- goto cleanup_tx;
-
- /* Port */
- pause_config.tx_pause = 0;
- pause_config.rx_pause = 0;
-
- mtu = ETH_HLEN + bnad->netdev->mtu + ETH_FCS_LEN;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_port_mtu_set(&bnad->bna.port, mtu, NULL);
- bna_port_pause_config(&bnad->bna.port, &pause_config, NULL);
- bna_port_enable(&bnad->bna.port);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- /* Enable broadcast */
- bnad_enable_default_bcast(bnad);
-
- /* Restore VLANs, if any */
- bnad_restore_vlans(bnad, 0);
-
- /* Set the UCAST address */
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bnad_mac_addr_set_locked(bnad, netdev->dev_addr);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- /* Start the stats timer */
- bnad_stats_timer_start(bnad);
-
- mutex_unlock(&bnad->conf_mutex);
-
- return 0;
-
-cleanup_tx:
- bnad_cleanup_tx(bnad, 0);
-
-err_return:
- mutex_unlock(&bnad->conf_mutex);
- return err;
-}
-
-static int
-bnad_stop(struct net_device *netdev)
-{
- struct bnad *bnad = netdev_priv(netdev);
- unsigned long flags;
-
- mutex_lock(&bnad->conf_mutex);
-
- /* Stop the stats timer */
- bnad_stats_timer_stop(bnad);
-
- init_completion(&bnad->bnad_completions.port_comp);
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_port_disable(&bnad->bna.port, BNA_HARD_CLEANUP,
- bnad_cb_port_disabled);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- wait_for_completion(&bnad->bnad_completions.port_comp);
-
- bnad_cleanup_tx(bnad, 0);
- bnad_cleanup_rx(bnad, 0);
-
- /* Synchronize mailbox IRQ */
- bnad_mbox_irq_sync(bnad);
-
- mutex_unlock(&bnad->conf_mutex);
-
- return 0;
-}
-
-/* TX */
-/*
- * bnad_start_xmit : Netdev entry point for Transmit
- * Called under lock held by net_device
- */
-static netdev_tx_t
-bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev)
-{
- struct bnad *bnad = netdev_priv(netdev);
-
- u16 txq_prod, vlan_tag = 0;
- u32 unmap_prod, wis, wis_used, wi_range;
- u32 vectors, vect_id, i, acked;
- u32 tx_id;
- int err;
-
- struct bnad_tx_info *tx_info;
- struct bna_tcb *tcb;
- struct bnad_unmap_q *unmap_q;
- 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 > BFI_TX_MAX_DATA_PER_PKT)) {
- dev_kfree_skb(skb);
- return NETDEV_TX_OK;
- }
-
- tx_id = 0;
-
- tx_info = &bnad->tx_info[tx_id];
- tcb = tx_info->tcb[tx_id];
- unmap_q = tcb->unmap_q;
-
- /*
- * Takes care of the Tx that is scheduled between clearing the flag
- * and the netif_stop_queue() call.
- */
- if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) {
- dev_kfree_skb(skb);
- return NETDEV_TX_OK;
- }
-
- vectors = 1 + skb_shinfo(skb)->nr_frags;
- if (vectors > BFI_TX_MAX_VECTORS_PER_PKT) {
- dev_kfree_skb(skb);
- return NETDEV_TX_OK;
- }
- wis = BNA_TXQ_WI_NEEDED(vectors); /* 4 vectors per work item */
- acked = 0;
- if (unlikely
- (wis > BNA_QE_FREE_CNT(tcb, tcb->q_depth) ||
- vectors > BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth))) {
- if ((u16) (*tcb->hw_consumer_index) !=
- tcb->consumer_index &&
- !test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) {
- acked = bnad_free_txbufs(bnad, tcb);
- if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)))
- bna_ib_ack(tcb->i_dbell, acked);
- smp_mb__before_clear_bit();
- clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
- } else {
- netif_stop_queue(netdev);
- BNAD_UPDATE_CTR(bnad, netif_queue_stop);
- }
-
- 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_QE_FREE_CNT(tcb, tcb->q_depth) ||
- vectors > BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth))) {
- BNAD_UPDATE_CTR(bnad, netif_queue_stop);
- return NETDEV_TX_BUSY;
- } else {
- netif_wake_queue(netdev);
- BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
- }
- }
-
- unmap_prod = unmap_q->producer_index;
- wis_used = 1;
- vect_id = 0;
- flags = 0;
-
- txq_prod = tcb->producer_index;
- BNA_TXQ_QPGE_PTR_GET(txq_prod, tcb->sw_qpt, txqent, wi_range);
- BUG_ON(!(wi_range <= tcb->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 (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_RF_CEE_RUNNING, &bnad->run_flags)) {
- vlan_tag =
- (tcb->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)) {
- /* nexthdr may not be TCP immediately. */
- 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_UPDATE_CTR(bnad, 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_UPDATE_CTR(bnad, udpcsum_offload);
-
- BUG_ON(!(skb_headlen(skb) >=
- skb_transport_offset(skb) +
- sizeof(struct udphdr)));
- } else {
- err = skb_checksum_help(skb);
- BNAD_UPDATE_CTR(bnad, csum_help);
- if (err) {
- dev_kfree_skb(skb);
- BNAD_UPDATE_CTR(bnad, 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) <= BFI_TX_MAX_DATA_PER_VECTOR));
- txqent->vector[vect_id].length = htons(skb_headlen(skb));
- dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data,
- skb_headlen(skb), DMA_TO_DEVICE);
- dma_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];
- u32 size = frag->size;
-
- if (++vect_id == BFI_TX_MAX_VECTORS_PER_WI) {
- vect_id = 0;
- if (--wi_range)
- txqent++;
- else {
- BNA_QE_INDX_ADD(txq_prod, wis_used,
- tcb->q_depth);
- wis_used = 0;
- BNA_TXQ_QPGE_PTR_GET(txq_prod, tcb->sw_qpt,
- txqent, wi_range);
- BUG_ON(!(wi_range <= tcb->q_depth));
- }
- wis_used++;
- txqent->hdr.wi_ext.opcode = htons(BNA_TXQ_WI_EXTENSION);
- }
-
- BUG_ON(!(size <= BFI_TX_MAX_DATA_PER_VECTOR));
- txqent->vector[vect_id].length = htons(size);
- dma_addr = dma_map_page(&bnad->pcidev->dev, frag->page,
- frag->page_offset, size, DMA_TO_DEVICE);
- dma_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, tcb->q_depth);
- tcb->producer_index = txq_prod;
-
- smp_mb();
-
- if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)))
- return NETDEV_TX_OK;
-
- bna_txq_prod_indx_doorbell(tcb);
-
- if ((u16) (*tcb->hw_consumer_index) != tcb->consumer_index)
- tasklet_schedule(&bnad->tx_free_tasklet);
-
- return NETDEV_TX_OK;
-}
-
-/*
- * Used spin_lock to synchronize reading of stats structures, which
- * is written by BNA under the same lock.
- */
-static struct rtnl_link_stats64 *
-bnad_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
-{
- struct bnad *bnad = netdev_priv(netdev);
- unsigned long flags;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
-
- bnad_netdev_qstats_fill(bnad, stats);
- bnad_netdev_hwstats_fill(bnad, stats);
-
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- return stats;
-}
-
-static void
-bnad_set_rx_mode(struct net_device *netdev)
-{
- struct bnad *bnad = netdev_priv(netdev);
- u32 new_mask, valid_mask;
- unsigned long flags;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
-
- new_mask = valid_mask = 0;
-
- if (netdev->flags & IFF_PROMISC) {
- if (!(bnad->cfg_flags & BNAD_CF_PROMISC)) {
- new_mask = BNAD_RXMODE_PROMISC_DEFAULT;
- valid_mask = BNAD_RXMODE_PROMISC_DEFAULT;
- bnad->cfg_flags |= BNAD_CF_PROMISC;
- }
- } else {
- if (bnad->cfg_flags & BNAD_CF_PROMISC) {
- new_mask = ~BNAD_RXMODE_PROMISC_DEFAULT;
- valid_mask = BNAD_RXMODE_PROMISC_DEFAULT;
- bnad->cfg_flags &= ~BNAD_CF_PROMISC;
- }
- }
-
- if (netdev->flags & IFF_ALLMULTI) {
- if (!(bnad->cfg_flags & BNAD_CF_ALLMULTI)) {
- new_mask |= BNA_RXMODE_ALLMULTI;
- valid_mask |= BNA_RXMODE_ALLMULTI;
- bnad->cfg_flags |= BNAD_CF_ALLMULTI;
- }
- } else {
- if (bnad->cfg_flags & BNAD_CF_ALLMULTI) {
- new_mask &= ~BNA_RXMODE_ALLMULTI;
- valid_mask |= BNA_RXMODE_ALLMULTI;
- bnad->cfg_flags &= ~BNAD_CF_ALLMULTI;
- }
- }
-
- bna_rx_mode_set(bnad->rx_info[0].rx, new_mask, valid_mask, NULL);
-
- if (!netdev_mc_empty(netdev)) {
- u8 *mcaddr_list;
- int mc_count = netdev_mc_count(netdev);
-
- /* Index 0 holds the broadcast address */
- mcaddr_list =
- kzalloc((mc_count + 1) * ETH_ALEN,
- GFP_ATOMIC);
- if (!mcaddr_list)
- goto unlock;
-
- memcpy(&mcaddr_list[0], &bnad_bcast_addr[0], ETH_ALEN);
-
- /* Copy rest of the MC addresses */
- bnad_netdev_mc_list_get(netdev, mcaddr_list);
-
- bna_rx_mcast_listset(bnad->rx_info[0].rx, mc_count + 1,
- mcaddr_list, NULL);
-
- /* Should we enable BNAD_CF_ALLMULTI for err != 0 ? */
- kfree(mcaddr_list);
- }
-unlock:
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-}
-
-/*
- * bna_lock is used to sync writes to netdev->addr
- * conf_lock cannot be used since this call may be made
- * in a non-blocking context.
- */
-static int
-bnad_set_mac_address(struct net_device *netdev, void *mac_addr)
-{
- int err;
- struct bnad *bnad = netdev_priv(netdev);
- struct sockaddr *sa = (struct sockaddr *)mac_addr;
- unsigned long flags;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
-
- err = bnad_mac_addr_set_locked(bnad, sa->sa_data);
-
- if (!err)
- memcpy(netdev->dev_addr, sa->sa_data, netdev->addr_len);
-
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- return err;
-}
-
-static int
-bnad_change_mtu(struct net_device *netdev, int new_mtu)
-{
- int mtu, err = 0;
- unsigned long flags;
-
- struct bnad *bnad = netdev_priv(netdev);
-
- if (new_mtu + ETH_HLEN < ETH_ZLEN || new_mtu > BNAD_JUMBO_MTU)
- return -EINVAL;
-
- mutex_lock(&bnad->conf_mutex);
-
- netdev->mtu = new_mtu;
-
- mtu = ETH_HLEN + new_mtu + ETH_FCS_LEN;
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_port_mtu_set(&bnad->bna.port, mtu, NULL);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- mutex_unlock(&bnad->conf_mutex);
- return err;
-}
-
-static void
-bnad_vlan_rx_add_vid(struct net_device *netdev,
- unsigned short vid)
-{
- struct bnad *bnad = netdev_priv(netdev);
- unsigned long flags;
-
- if (!bnad->rx_info[0].rx)
- return;
-
- mutex_lock(&bnad->conf_mutex);
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_rx_vlan_add(bnad->rx_info[0].rx, vid);
- set_bit(vid, bnad->active_vlans);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- 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);
- unsigned long flags;
-
- if (!bnad->rx_info[0].rx)
- return;
-
- mutex_lock(&bnad->conf_mutex);
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- clear_bit(vid, bnad->active_vlans);
- bna_rx_vlan_del(bnad->rx_info[0].rx, vid);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- mutex_unlock(&bnad->conf_mutex);
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void
-bnad_netpoll(struct net_device *netdev)
-{
- struct bnad *bnad = netdev_priv(netdev);
- struct bnad_rx_info *rx_info;
- struct bnad_rx_ctrl *rx_ctrl;
- u32 curr_mask;
- int i, j;
-
- if (!(bnad->cfg_flags & BNAD_CF_MSIX)) {
- bna_intx_disable(&bnad->bna, curr_mask);
- bnad_isr(bnad->pcidev->irq, netdev);
- bna_intx_enable(&bnad->bna, curr_mask);
- } else {
- for (i = 0; i < bnad->num_rx; i++) {
- rx_info = &bnad->rx_info[i];
- if (!rx_info->rx)
- continue;
- for (j = 0; j < bnad->num_rxp_per_rx; j++) {
- rx_ctrl = &rx_info->rx_ctrl[j];
- if (rx_ctrl->ccb) {
- bnad_disable_rx_irq(bnad,
- rx_ctrl->ccb);
- bnad_netif_rx_schedule_poll(bnad,
- rx_ctrl->ccb);
- }
- }
- }
- }
-}
-#endif
-
-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_stats64 = bnad_get_stats64,
- .ndo_set_rx_mode = bnad_set_rx_mode,
- .ndo_set_multicast_list = bnad_set_rx_mode,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_set_mac_address = bnad_set_mac_address,
- .ndo_change_mtu = bnad_change_mtu,
- .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
-};
-
-static void
-bnad_netdev_init(struct bnad *bnad, bool using_dac)
-{
- struct net_device *netdev = bnad->netdev;
-
- netdev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM |
- NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
- NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_HW_VLAN_TX;
-
- netdev->vlan_features = NETIF_F_SG | NETIF_F_HIGHDMA |
- NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
- NETIF_F_TSO | NETIF_F_TSO6;
-
- netdev->features |= netdev->hw_features |
- NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
-
- if (using_dac)
- netdev->features |= NETIF_F_HIGHDMA;
-
- netdev->mem_start = bnad->mmio_start;
- netdev->mem_end = bnad->mmio_start + bnad->mmio_len - 1;
-
- netdev->netdev_ops = &bnad_netdev_ops;
- bnad_set_ethtool_ops(netdev);
-}
-
-/*
- * 1. Initialize the bnad structure
- * 2. Setup netdev pointer in pci_dev
- * 3. Initialze Tx free tasklet
- * 4. Initialize no. of TxQ & CQs & MSIX vectors
- */
-static int
-bnad_init(struct bnad *bnad,
- struct pci_dev *pdev, struct net_device *netdev)
-{
- unsigned long flags;
-
- SET_NETDEV_DEV(netdev, &pdev->dev);
- pci_set_drvdata(pdev, netdev);
-
- bnad->netdev = netdev;
- bnad->pcidev = pdev;
- bnad->mmio_start = pci_resource_start(pdev, 0);
- bnad->mmio_len = pci_resource_len(pdev, 0);
- bnad->bar0 = ioremap_nocache(bnad->mmio_start, bnad->mmio_len);
- if (!bnad->bar0) {
- dev_err(&pdev->dev, "ioremap for bar0 failed\n");
- pci_set_drvdata(pdev, NULL);
- return -ENOMEM;
- }
- pr_info("bar0 mapped to %p, len %llu\n", bnad->bar0,
- (unsigned long long) bnad->mmio_len);
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- if (!bnad_msix_disable)
- bnad->cfg_flags = BNAD_CF_MSIX;
-
- bnad->cfg_flags |= BNAD_CF_DIM_ENABLED;
-
- bnad_q_num_init(bnad);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- bnad->msix_num = (bnad->num_tx * bnad->num_txq_per_tx) +
- (bnad->num_rx * bnad->num_rxp_per_rx) +
- BNAD_MAILBOX_MSIX_VECTORS;
-
- bnad->txq_depth = BNAD_TXQ_DEPTH;
- bnad->rxq_depth = BNAD_RXQ_DEPTH;
-
- bnad->tx_coalescing_timeo = BFI_TX_COALESCING_TIMEO;
- bnad->rx_coalescing_timeo = BFI_RX_COALESCING_TIMEO;
-
- tasklet_init(&bnad->tx_free_tasklet, bnad_tx_free_tasklet,
- (unsigned long)bnad);
-
- return 0;
-}
-
-/*
- * Must be called after bnad_pci_uninit()
- * so that iounmap() and pci_set_drvdata(NULL)
- * happens only after PCI uninitialization.
- */
-static void
-bnad_uninit(struct bnad *bnad)
-{
- if (bnad->bar0)
- iounmap(bnad->bar0);
- pci_set_drvdata(bnad->pcidev, NULL);
-}
-
-/*
- * Initialize locks
- a) Per device mutes used for serializing configuration
- changes from OS interface
- b) spin lock used to protect bna state machine
- */
-static void
-bnad_lock_init(struct bnad *bnad)
-{
- spin_lock_init(&bnad->bna_lock);
- mutex_init(&bnad->conf_mutex);
-}
-
-static void
-bnad_lock_uninit(struct bnad *bnad)
-{
- mutex_destroy(&bnad->conf_mutex);
-}
-
-/* PCI Initialization */
-static int
-bnad_pci_init(struct bnad *bnad,
- struct pci_dev *pdev, bool *using_dac)
-{
- int err;
-
- err = pci_enable_device(pdev);
- if (err)
- return err;
- err = pci_request_regions(pdev, BNAD_NAME);
- if (err)
- goto disable_device;
- if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) &&
- !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
- *using_dac = 1;
- } else {
- err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- err = dma_set_coherent_mask(&pdev->dev,
- DMA_BIT_MASK(32));
- if (err)
- goto release_regions;
- }
- *using_dac = 0;
- }
- pci_set_master(pdev);
- return 0;
-
-release_regions:
- pci_release_regions(pdev);
-disable_device:
- pci_disable_device(pdev);
-
- return err;
-}
-
-static void
-bnad_pci_uninit(struct pci_dev *pdev)
-{
- pci_release_regions(pdev);
- pci_disable_device(pdev);
-}
-
-static int __devinit
-bnad_pci_probe(struct pci_dev *pdev,
- const struct pci_device_id *pcidev_id)
-{
- bool using_dac = false;
- int err;
- struct bnad *bnad;
- struct bna *bna;
- struct net_device *netdev;
- struct bfa_pcidev pcidev_info;
- unsigned long flags;
-
- pr_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 (!cna_get_firmware_buf(pdev)) {
- mutex_unlock(&bnad_fwimg_mutex);
- pr_warn("Failed to load Firmware Image!\n");
- return -ENODEV;
- }
- mutex_unlock(&bnad_fwimg_mutex);
-
- /*
- * Allocates sizeof(struct net_device + struct bnad)
- * bnad = netdev->priv
- */
- netdev = alloc_etherdev(sizeof(struct bnad));
- if (!netdev) {
- dev_err(&pdev->dev, "alloc_etherdev failed\n");
- err = -ENOMEM;
- return err;
- }
- bnad = netdev_priv(netdev);
-
- /*
- * PCI initialization
- * Output : using_dac = 1 for 64 bit DMA
- * = 0 for 32 bit DMA
- */
- err = bnad_pci_init(bnad, pdev, &using_dac);
- if (err)
- goto free_netdev;
-
- bnad_lock_init(bnad);
- /*
- * Initialize bnad structure
- * Setup relation between pci_dev & netdev
- * Init Tx free tasklet
- */
- err = bnad_init(bnad, pdev, netdev);
- if (err)
- goto pci_uninit;
- /* Initialize netdev structure, set up ethtool ops */
- bnad_netdev_init(bnad, using_dac);
-
- /* Set link to down state */
- netif_carrier_off(netdev);
-
- bnad_enable_msix(bnad);
-
- /* Get resource requirement form bna */
- bna_res_req(&bnad->res_info[0]);
-
- /* Allocate resources from bna */
- err = bnad_res_alloc(bnad);
- if (err)
- goto free_netdev;
-
- bna = &bnad->bna;
-
- /* Setup pcidev_info for bna_init() */
- 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;
-
- mutex_lock(&bnad->conf_mutex);
-
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_init(bna, bnad, &pcidev_info, &bnad->res_info[0]);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- bnad->stats.bna_stats = &bna->stats;
-
- /* Set up timers */
- setup_timer(&bnad->bna.device.ioc.ioc_timer, bnad_ioc_timeout,
- ((unsigned long)bnad));
- setup_timer(&bnad->bna.device.ioc.hb_timer, bnad_ioc_hb_check,
- ((unsigned long)bnad));
- setup_timer(&bnad->bna.device.ioc.iocpf_timer, bnad_iocpf_timeout,
- ((unsigned long)bnad));
- setup_timer(&bnad->bna.device.ioc.sem_timer, bnad_iocpf_sem_timeout,
- ((unsigned long)bnad));
-
- /* Now start the timer before calling IOC */
- mod_timer(&bnad->bna.device.ioc.iocpf_timer,
- jiffies + msecs_to_jiffies(BNA_IOC_TIMER_FREQ));
-
- /*
- * Start the chip
- * Don't care even if err != 0, bna state machine will
- * deal with it
- */
- err = bnad_device_enable(bnad);
-
- /* Get the burnt-in mac */
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_port_mac_get(&bna->port, &bnad->perm_addr);
- bnad_set_netdev_perm_addr(bnad);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
-
- mutex_unlock(&bnad->conf_mutex);
-
- /* Finally, reguister with net_device layer */
- err = register_netdev(netdev);
- if (err) {
- pr_err("BNA : Registering with netdev failed\n");
- goto disable_device;
- }
-
- return 0;
-
-disable_device:
- mutex_lock(&bnad->conf_mutex);
- bnad_device_disable(bnad);
- del_timer_sync(&bnad->bna.device.ioc.ioc_timer);
- del_timer_sync(&bnad->bna.device.ioc.sem_timer);
- del_timer_sync(&bnad->bna.device.ioc.hb_timer);
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_uninit(bna);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
- mutex_unlock(&bnad->conf_mutex);
-
- bnad_res_free(bnad);
- bnad_disable_msix(bnad);
-pci_uninit:
- bnad_pci_uninit(pdev);
- bnad_lock_uninit(bnad);
- bnad_uninit(bnad);
-free_netdev:
- free_netdev(netdev);
- return err;
-}
-
-static void __devexit
-bnad_pci_remove(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct bnad *bnad;
- struct bna *bna;
- unsigned long flags;
-
- if (!netdev)
- return;
-
- pr_info("%s bnad_pci_remove\n", netdev->name);
- bnad = netdev_priv(netdev);
- bna = &bnad->bna;
-
- unregister_netdev(netdev);
-
- mutex_lock(&bnad->conf_mutex);
- bnad_device_disable(bnad);
- del_timer_sync(&bnad->bna.device.ioc.ioc_timer);
- del_timer_sync(&bnad->bna.device.ioc.sem_timer);
- del_timer_sync(&bnad->bna.device.ioc.hb_timer);
- spin_lock_irqsave(&bnad->bna_lock, flags);
- bna_uninit(bna);
- spin_unlock_irqrestore(&bnad->bna_lock, flags);
- mutex_unlock(&bnad->conf_mutex);
-
- bnad_res_free(bnad);
- bnad_disable_msix(bnad);
- bnad_pci_uninit(pdev);
- bnad_lock_uninit(bnad);
- bnad_uninit(bnad);
- free_netdev(netdev);
-}
-
-static DEFINE_PCI_DEVICE_TABLE(bnad_pci_id_table) = {
- {
- PCI_DEVICE(PCI_VENDOR_ID_BROCADE,
- PCI_DEVICE_ID_BROCADE_CT),
- .class = PCI_CLASS_NETWORK_ETHERNET << 8,
- .class_mask = 0xffff00
- }, {0, }
-};
-
-MODULE_DEVICE_TABLE(pci, bnad_pci_id_table);
-
-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)
-{
- int err;
-
- pr_info("Brocade 10G Ethernet driver - version: %s\n",
- BNAD_VERSION);
-
- bfa_nw_ioc_auto_recover(bnad_ioc_auto_recover);
-
- err = pci_register_driver(&bnad_pci_driver);
- if (err < 0) {
- pr_err("bna : PCI registration failed in module init "
- "(%d)\n", err);
- return err;
- }
-
- return 0;
-}
-
-static void __exit
-bnad_module_exit(void)
-{
- pci_unregister_driver(&bnad_pci_driver);
-
- if (bfi_fw)
- release_firmware(bfi_fw);
-}
-
-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);
-MODULE_FIRMWARE(CNA_FW_FILE_CT);
git.openpandora.org / pandora-kernel.git / blobdiff