3901 lines
93 KiB
C
3901 lines
93 KiB
C
/*
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* Linux network driver for Brocade Converged Network Adapter.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License (GPL) Version 2 as
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* published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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/*
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* Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
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* All rights reserved
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* www.brocade.com
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*/
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#include <linux/bitops.h>
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#include <linux/netdevice.h>
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#include <linux/skbuff.h>
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#include <linux/etherdevice.h>
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#include <linux/in.h>
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#include <linux/ethtool.h>
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#include <linux/if_vlan.h>
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#include <linux/if_ether.h>
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#include <linux/ip.h>
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#include <linux/prefetch.h>
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#include <linux/module.h>
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#include "bnad.h"
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#include "bna.h"
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#include "cna.h"
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static DEFINE_MUTEX(bnad_fwimg_mutex);
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/*
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* Module params
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*/
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static uint bnad_msix_disable;
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module_param(bnad_msix_disable, uint, 0444);
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MODULE_PARM_DESC(bnad_msix_disable, "Disable MSIX mode");
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static uint bnad_ioc_auto_recover = 1;
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module_param(bnad_ioc_auto_recover, uint, 0444);
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MODULE_PARM_DESC(bnad_ioc_auto_recover, "Enable / Disable auto recovery");
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static uint bna_debugfs_enable = 1;
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module_param(bna_debugfs_enable, uint, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(bna_debugfs_enable, "Enables debugfs feature, default=1,"
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" Range[false:0|true:1]");
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/*
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* Global variables
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*/
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static u32 bnad_rxqs_per_cq = 2;
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static u32 bna_id;
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static struct mutex bnad_list_mutex;
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static LIST_HEAD(bnad_list);
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static const u8 bnad_bcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
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/*
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* Local MACROS
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*/
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#define BNAD_GET_MBOX_IRQ(_bnad) \
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(((_bnad)->cfg_flags & BNAD_CF_MSIX) ? \
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((_bnad)->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector) : \
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((_bnad)->pcidev->irq))
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#define BNAD_FILL_UNMAPQ_MEM_REQ(_res_info, _num, _size) \
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do { \
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(_res_info)->res_type = BNA_RES_T_MEM; \
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(_res_info)->res_u.mem_info.mem_type = BNA_MEM_T_KVA; \
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(_res_info)->res_u.mem_info.num = (_num); \
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(_res_info)->res_u.mem_info.len = (_size); \
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} while (0)
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static void
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bnad_add_to_list(struct bnad *bnad)
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{
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mutex_lock(&bnad_list_mutex);
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list_add_tail(&bnad->list_entry, &bnad_list);
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bnad->id = bna_id++;
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mutex_unlock(&bnad_list_mutex);
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}
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static void
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bnad_remove_from_list(struct bnad *bnad)
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{
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mutex_lock(&bnad_list_mutex);
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list_del(&bnad->list_entry);
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mutex_unlock(&bnad_list_mutex);
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}
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/*
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* Reinitialize completions in CQ, once Rx is taken down
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*/
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static void
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bnad_cq_cleanup(struct bnad *bnad, struct bna_ccb *ccb)
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{
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struct bna_cq_entry *cmpl;
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int i;
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for (i = 0; i < ccb->q_depth; i++) {
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cmpl = &((struct bna_cq_entry *)ccb->sw_q)[i];
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cmpl->valid = 0;
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}
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}
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/* Tx Datapath functions */
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/* Caller should ensure that the entry at unmap_q[index] is valid */
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static u32
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bnad_tx_buff_unmap(struct bnad *bnad,
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struct bnad_tx_unmap *unmap_q,
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u32 q_depth, u32 index)
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{
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struct bnad_tx_unmap *unmap;
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struct sk_buff *skb;
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int vector, nvecs;
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unmap = &unmap_q[index];
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nvecs = unmap->nvecs;
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skb = unmap->skb;
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unmap->skb = NULL;
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unmap->nvecs = 0;
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dma_unmap_single(&bnad->pcidev->dev,
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dma_unmap_addr(&unmap->vectors[0], dma_addr),
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skb_headlen(skb), DMA_TO_DEVICE);
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dma_unmap_addr_set(&unmap->vectors[0], dma_addr, 0);
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nvecs--;
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vector = 0;
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while (nvecs) {
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vector++;
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if (vector == BFI_TX_MAX_VECTORS_PER_WI) {
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vector = 0;
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BNA_QE_INDX_INC(index, q_depth);
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unmap = &unmap_q[index];
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}
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dma_unmap_page(&bnad->pcidev->dev,
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dma_unmap_addr(&unmap->vectors[vector], dma_addr),
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dma_unmap_len(&unmap->vectors[vector], dma_len),
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DMA_TO_DEVICE);
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dma_unmap_addr_set(&unmap->vectors[vector], dma_addr, 0);
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nvecs--;
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}
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BNA_QE_INDX_INC(index, q_depth);
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return index;
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}
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/*
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* Frees all pending Tx Bufs
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* At this point no activity is expected on the Q,
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* so DMA unmap & freeing is fine.
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*/
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static void
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bnad_txq_cleanup(struct bnad *bnad, struct bna_tcb *tcb)
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{
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struct bnad_tx_unmap *unmap_q = tcb->unmap_q;
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struct sk_buff *skb;
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int i;
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for (i = 0; i < tcb->q_depth; i++) {
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skb = unmap_q[i].skb;
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if (!skb)
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continue;
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bnad_tx_buff_unmap(bnad, unmap_q, tcb->q_depth, i);
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dev_kfree_skb_any(skb);
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}
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}
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/*
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* bnad_txcmpl_process : Frees the Tx bufs on Tx completion
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* Can be called in a) Interrupt context
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* b) Sending context
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*/
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static u32
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bnad_txcmpl_process(struct bnad *bnad, struct bna_tcb *tcb)
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{
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u32 sent_packets = 0, sent_bytes = 0;
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u32 wis, unmap_wis, hw_cons, cons, q_depth;
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struct bnad_tx_unmap *unmap_q = tcb->unmap_q;
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struct bnad_tx_unmap *unmap;
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struct sk_buff *skb;
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/* Just return if TX is stopped */
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if (!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))
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return 0;
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hw_cons = *(tcb->hw_consumer_index);
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cons = tcb->consumer_index;
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q_depth = tcb->q_depth;
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wis = BNA_Q_INDEX_CHANGE(cons, hw_cons, q_depth);
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BUG_ON(!(wis <= BNA_QE_IN_USE_CNT(tcb, tcb->q_depth)));
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while (wis) {
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unmap = &unmap_q[cons];
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skb = unmap->skb;
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sent_packets++;
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sent_bytes += skb->len;
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unmap_wis = BNA_TXQ_WI_NEEDED(unmap->nvecs);
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wis -= unmap_wis;
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cons = bnad_tx_buff_unmap(bnad, unmap_q, q_depth, cons);
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dev_kfree_skb_any(skb);
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}
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/* Update consumer pointers. */
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tcb->consumer_index = hw_cons;
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tcb->txq->tx_packets += sent_packets;
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tcb->txq->tx_bytes += sent_bytes;
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return sent_packets;
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}
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static u32
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bnad_tx_complete(struct bnad *bnad, struct bna_tcb *tcb)
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{
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struct net_device *netdev = bnad->netdev;
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u32 sent = 0;
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if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags))
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return 0;
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sent = bnad_txcmpl_process(bnad, tcb);
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if (sent) {
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if (netif_queue_stopped(netdev) &&
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netif_carrier_ok(netdev) &&
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BNA_QE_FREE_CNT(tcb, tcb->q_depth) >=
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BNAD_NETIF_WAKE_THRESHOLD) {
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if (test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) {
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netif_wake_queue(netdev);
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BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
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}
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}
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}
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if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)))
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bna_ib_ack(tcb->i_dbell, sent);
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smp_mb__before_atomic();
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clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
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return sent;
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}
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/* MSIX Tx Completion Handler */
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static irqreturn_t
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bnad_msix_tx(int irq, void *data)
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{
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struct bna_tcb *tcb = (struct bna_tcb *)data;
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struct bnad *bnad = tcb->bnad;
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bnad_tx_complete(bnad, tcb);
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return IRQ_HANDLED;
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}
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static inline void
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bnad_rxq_alloc_uninit(struct bnad *bnad, struct bna_rcb *rcb)
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{
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struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
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unmap_q->reuse_pi = -1;
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unmap_q->alloc_order = -1;
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unmap_q->map_size = 0;
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unmap_q->type = BNAD_RXBUF_NONE;
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}
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/* Default is page-based allocation. Multi-buffer support - TBD */
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static int
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bnad_rxq_alloc_init(struct bnad *bnad, struct bna_rcb *rcb)
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{
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struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
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int order;
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bnad_rxq_alloc_uninit(bnad, rcb);
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order = get_order(rcb->rxq->buffer_size);
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unmap_q->type = BNAD_RXBUF_PAGE;
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if (bna_is_small_rxq(rcb->id)) {
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unmap_q->alloc_order = 0;
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unmap_q->map_size = rcb->rxq->buffer_size;
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} else {
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if (rcb->rxq->multi_buffer) {
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unmap_q->alloc_order = 0;
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unmap_q->map_size = rcb->rxq->buffer_size;
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unmap_q->type = BNAD_RXBUF_MULTI_BUFF;
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} else {
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unmap_q->alloc_order = order;
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unmap_q->map_size =
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(rcb->rxq->buffer_size > 2048) ?
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PAGE_SIZE << order : 2048;
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}
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}
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BUG_ON(((PAGE_SIZE << order) % unmap_q->map_size));
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return 0;
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}
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static inline void
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bnad_rxq_cleanup_page(struct bnad *bnad, struct bnad_rx_unmap *unmap)
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{
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if (!unmap->page)
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return;
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dma_unmap_page(&bnad->pcidev->dev,
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dma_unmap_addr(&unmap->vector, dma_addr),
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unmap->vector.len, DMA_FROM_DEVICE);
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put_page(unmap->page);
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unmap->page = NULL;
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dma_unmap_addr_set(&unmap->vector, dma_addr, 0);
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unmap->vector.len = 0;
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}
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static inline void
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bnad_rxq_cleanup_skb(struct bnad *bnad, struct bnad_rx_unmap *unmap)
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{
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if (!unmap->skb)
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return;
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dma_unmap_single(&bnad->pcidev->dev,
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dma_unmap_addr(&unmap->vector, dma_addr),
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unmap->vector.len, DMA_FROM_DEVICE);
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dev_kfree_skb_any(unmap->skb);
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unmap->skb = NULL;
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dma_unmap_addr_set(&unmap->vector, dma_addr, 0);
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unmap->vector.len = 0;
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}
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static void
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bnad_rxq_cleanup(struct bnad *bnad, struct bna_rcb *rcb)
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{
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struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
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int i;
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for (i = 0; i < rcb->q_depth; i++) {
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struct bnad_rx_unmap *unmap = &unmap_q->unmap[i];
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if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
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bnad_rxq_cleanup_skb(bnad, unmap);
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else
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bnad_rxq_cleanup_page(bnad, unmap);
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}
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bnad_rxq_alloc_uninit(bnad, rcb);
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}
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static u32
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bnad_rxq_refill_page(struct bnad *bnad, struct bna_rcb *rcb, u32 nalloc)
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{
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u32 alloced, prod, q_depth;
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struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
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struct bnad_rx_unmap *unmap, *prev;
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struct bna_rxq_entry *rxent;
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struct page *page;
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u32 page_offset, alloc_size;
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dma_addr_t dma_addr;
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prod = rcb->producer_index;
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q_depth = rcb->q_depth;
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alloc_size = PAGE_SIZE << unmap_q->alloc_order;
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alloced = 0;
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while (nalloc--) {
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unmap = &unmap_q->unmap[prod];
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if (unmap_q->reuse_pi < 0) {
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page = alloc_pages(GFP_ATOMIC | __GFP_COMP,
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unmap_q->alloc_order);
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page_offset = 0;
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} else {
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prev = &unmap_q->unmap[unmap_q->reuse_pi];
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page = prev->page;
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page_offset = prev->page_offset + unmap_q->map_size;
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get_page(page);
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}
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if (unlikely(!page)) {
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BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed);
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rcb->rxq->rxbuf_alloc_failed++;
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goto finishing;
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}
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dma_addr = dma_map_page(&bnad->pcidev->dev, page, page_offset,
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unmap_q->map_size, DMA_FROM_DEVICE);
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unmap->page = page;
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unmap->page_offset = page_offset;
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dma_unmap_addr_set(&unmap->vector, dma_addr, dma_addr);
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unmap->vector.len = unmap_q->map_size;
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page_offset += unmap_q->map_size;
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if (page_offset < alloc_size)
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unmap_q->reuse_pi = prod;
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else
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unmap_q->reuse_pi = -1;
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rxent = &((struct bna_rxq_entry *)rcb->sw_q)[prod];
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BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr);
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BNA_QE_INDX_INC(prod, q_depth);
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alloced++;
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}
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finishing:
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if (likely(alloced)) {
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rcb->producer_index = prod;
|
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smp_mb();
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if (likely(test_bit(BNAD_RXQ_POST_OK, &rcb->flags)))
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bna_rxq_prod_indx_doorbell(rcb);
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}
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|
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return alloced;
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}
|
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|
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static u32
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bnad_rxq_refill_skb(struct bnad *bnad, struct bna_rcb *rcb, u32 nalloc)
|
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{
|
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u32 alloced, prod, q_depth, buff_sz;
|
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struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
|
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struct bnad_rx_unmap *unmap;
|
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struct bna_rxq_entry *rxent;
|
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struct sk_buff *skb;
|
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dma_addr_t dma_addr;
|
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|
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buff_sz = rcb->rxq->buffer_size;
|
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prod = rcb->producer_index;
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q_depth = rcb->q_depth;
|
|
|
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alloced = 0;
|
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while (nalloc--) {
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unmap = &unmap_q->unmap[prod];
|
|
|
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skb = netdev_alloc_skb_ip_align(bnad->netdev, buff_sz);
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|
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if (unlikely(!skb)) {
|
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BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed);
|
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rcb->rxq->rxbuf_alloc_failed++;
|
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goto finishing;
|
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}
|
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dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data,
|
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buff_sz, DMA_FROM_DEVICE);
|
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|
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unmap->skb = skb;
|
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dma_unmap_addr_set(&unmap->vector, dma_addr, dma_addr);
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unmap->vector.len = buff_sz;
|
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|
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rxent = &((struct bna_rxq_entry *)rcb->sw_q)[prod];
|
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BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr);
|
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BNA_QE_INDX_INC(prod, q_depth);
|
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alloced++;
|
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}
|
|
|
|
finishing:
|
|
if (likely(alloced)) {
|
|
rcb->producer_index = prod;
|
|
smp_mb();
|
|
if (likely(test_bit(BNAD_RXQ_POST_OK, &rcb->flags)))
|
|
bna_rxq_prod_indx_doorbell(rcb);
|
|
}
|
|
|
|
return alloced;
|
|
}
|
|
|
|
static inline void
|
|
bnad_rxq_post(struct bnad *bnad, struct bna_rcb *rcb)
|
|
{
|
|
struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q;
|
|
u32 to_alloc;
|
|
|
|
to_alloc = BNA_QE_FREE_CNT(rcb, rcb->q_depth);
|
|
if (!(to_alloc >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT))
|
|
return;
|
|
|
|
if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
|
|
bnad_rxq_refill_skb(bnad, rcb, to_alloc);
|
|
else
|
|
bnad_rxq_refill_page(bnad, rcb, to_alloc);
|
|
}
|
|
|
|
#define flags_cksum_prot_mask (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \
|
|
BNA_CQ_EF_IPV6 | \
|
|
BNA_CQ_EF_TCP | BNA_CQ_EF_UDP | \
|
|
BNA_CQ_EF_L4_CKSUM_OK)
|
|
|
|
#define flags_tcp4 (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \
|
|
BNA_CQ_EF_TCP | BNA_CQ_EF_L4_CKSUM_OK)
|
|
#define flags_tcp6 (BNA_CQ_EF_IPV6 | \
|
|
BNA_CQ_EF_TCP | BNA_CQ_EF_L4_CKSUM_OK)
|
|
#define flags_udp4 (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \
|
|
BNA_CQ_EF_UDP | BNA_CQ_EF_L4_CKSUM_OK)
|
|
#define flags_udp6 (BNA_CQ_EF_IPV6 | \
|
|
BNA_CQ_EF_UDP | BNA_CQ_EF_L4_CKSUM_OK)
|
|
|
|
static void
|
|
bnad_cq_drop_packet(struct bnad *bnad, struct bna_rcb *rcb,
|
|
u32 sop_ci, u32 nvecs)
|
|
{
|
|
struct bnad_rx_unmap_q *unmap_q;
|
|
struct bnad_rx_unmap *unmap;
|
|
u32 ci, vec;
|
|
|
|
unmap_q = rcb->unmap_q;
|
|
for (vec = 0, ci = sop_ci; vec < nvecs; vec++) {
|
|
unmap = &unmap_q->unmap[ci];
|
|
BNA_QE_INDX_INC(ci, rcb->q_depth);
|
|
|
|
if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
|
|
bnad_rxq_cleanup_skb(bnad, unmap);
|
|
else
|
|
bnad_rxq_cleanup_page(bnad, unmap);
|
|
}
|
|
}
|
|
|
|
static void
|
|
bnad_cq_setup_skb_frags(struct bna_rcb *rcb, struct sk_buff *skb,
|
|
u32 sop_ci, u32 nvecs, u32 last_fraglen)
|
|
{
|
|
struct bnad *bnad;
|
|
u32 ci, vec, len, totlen = 0;
|
|
struct bnad_rx_unmap_q *unmap_q;
|
|
struct bnad_rx_unmap *unmap;
|
|
|
|
unmap_q = rcb->unmap_q;
|
|
bnad = rcb->bnad;
|
|
|
|
/* prefetch header */
|
|
prefetch(page_address(unmap_q->unmap[sop_ci].page) +
|
|
unmap_q->unmap[sop_ci].page_offset);
|
|
|
|
for (vec = 1, ci = sop_ci; vec <= nvecs; vec++) {
|
|
unmap = &unmap_q->unmap[ci];
|
|
BNA_QE_INDX_INC(ci, rcb->q_depth);
|
|
|
|
dma_unmap_page(&bnad->pcidev->dev,
|
|
dma_unmap_addr(&unmap->vector, dma_addr),
|
|
unmap->vector.len, DMA_FROM_DEVICE);
|
|
|
|
len = (vec == nvecs) ?
|
|
last_fraglen : unmap->vector.len;
|
|
skb->truesize += unmap->vector.len;
|
|
totlen += len;
|
|
|
|
skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
|
|
unmap->page, unmap->page_offset, len);
|
|
|
|
unmap->page = NULL;
|
|
unmap->vector.len = 0;
|
|
}
|
|
|
|
skb->len += totlen;
|
|
skb->data_len += totlen;
|
|
}
|
|
|
|
static inline void
|
|
bnad_cq_setup_skb(struct bnad *bnad, struct sk_buff *skb,
|
|
struct bnad_rx_unmap *unmap, u32 len)
|
|
{
|
|
prefetch(skb->data);
|
|
|
|
dma_unmap_single(&bnad->pcidev->dev,
|
|
dma_unmap_addr(&unmap->vector, dma_addr),
|
|
unmap->vector.len, DMA_FROM_DEVICE);
|
|
|
|
skb_put(skb, len);
|
|
skb->protocol = eth_type_trans(skb, bnad->netdev);
|
|
|
|
unmap->skb = NULL;
|
|
unmap->vector.len = 0;
|
|
}
|
|
|
|
static u32
|
|
bnad_cq_process(struct bnad *bnad, struct bna_ccb *ccb, int budget)
|
|
{
|
|
struct bna_cq_entry *cq, *cmpl, *next_cmpl;
|
|
struct bna_rcb *rcb = NULL;
|
|
struct bnad_rx_unmap_q *unmap_q;
|
|
struct bnad_rx_unmap *unmap = NULL;
|
|
struct sk_buff *skb = NULL;
|
|
struct bna_pkt_rate *pkt_rt = &ccb->pkt_rate;
|
|
struct bnad_rx_ctrl *rx_ctrl = ccb->ctrl;
|
|
u32 packets = 0, len = 0, totlen = 0;
|
|
u32 pi, vec, sop_ci = 0, nvecs = 0;
|
|
u32 flags, masked_flags;
|
|
|
|
prefetch(bnad->netdev);
|
|
|
|
cq = ccb->sw_q;
|
|
|
|
while (packets < budget) {
|
|
cmpl = &cq[ccb->producer_index];
|
|
if (!cmpl->valid)
|
|
break;
|
|
/* The 'valid' field is set by the adapter, only after writing
|
|
* the other fields of completion entry. Hence, do not load
|
|
* other fields of completion entry *before* the 'valid' is
|
|
* loaded. Adding the rmb() here prevents the compiler and/or
|
|
* CPU from reordering the reads which would potentially result
|
|
* in reading stale values in completion entry.
|
|
*/
|
|
rmb();
|
|
|
|
BNA_UPDATE_PKT_CNT(pkt_rt, ntohs(cmpl->length));
|
|
|
|
if (bna_is_small_rxq(cmpl->rxq_id))
|
|
rcb = ccb->rcb[1];
|
|
else
|
|
rcb = ccb->rcb[0];
|
|
|
|
unmap_q = rcb->unmap_q;
|
|
|
|
/* start of packet ci */
|
|
sop_ci = rcb->consumer_index;
|
|
|
|
if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) {
|
|
unmap = &unmap_q->unmap[sop_ci];
|
|
skb = unmap->skb;
|
|
} else {
|
|
skb = napi_get_frags(&rx_ctrl->napi);
|
|
if (unlikely(!skb))
|
|
break;
|
|
}
|
|
prefetch(skb);
|
|
|
|
flags = ntohl(cmpl->flags);
|
|
len = ntohs(cmpl->length);
|
|
totlen = len;
|
|
nvecs = 1;
|
|
|
|
/* Check all the completions for this frame.
|
|
* busy-wait doesn't help much, break here.
|
|
*/
|
|
if (BNAD_RXBUF_IS_MULTI_BUFF(unmap_q->type) &&
|
|
(flags & BNA_CQ_EF_EOP) == 0) {
|
|
pi = ccb->producer_index;
|
|
do {
|
|
BNA_QE_INDX_INC(pi, ccb->q_depth);
|
|
next_cmpl = &cq[pi];
|
|
|
|
if (!next_cmpl->valid)
|
|
break;
|
|
/* The 'valid' field is set by the adapter, only
|
|
* after writing the other fields of completion
|
|
* entry. Hence, do not load other fields of
|
|
* completion entry *before* the 'valid' is
|
|
* loaded. Adding the rmb() here prevents the
|
|
* compiler and/or CPU from reordering the reads
|
|
* which would potentially result in reading
|
|
* stale values in completion entry.
|
|
*/
|
|
rmb();
|
|
|
|
len = ntohs(next_cmpl->length);
|
|
flags = ntohl(next_cmpl->flags);
|
|
|
|
nvecs++;
|
|
totlen += len;
|
|
} while ((flags & BNA_CQ_EF_EOP) == 0);
|
|
|
|
if (!next_cmpl->valid)
|
|
break;
|
|
}
|
|
|
|
/* TODO: BNA_CQ_EF_LOCAL ? */
|
|
if (unlikely(flags & (BNA_CQ_EF_MAC_ERROR |
|
|
BNA_CQ_EF_FCS_ERROR |
|
|
BNA_CQ_EF_TOO_LONG))) {
|
|
bnad_cq_drop_packet(bnad, rcb, sop_ci, nvecs);
|
|
rcb->rxq->rx_packets_with_error++;
|
|
|
|
goto next;
|
|
}
|
|
|
|
if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
|
|
bnad_cq_setup_skb(bnad, skb, unmap, len);
|
|
else
|
|
bnad_cq_setup_skb_frags(rcb, skb, sop_ci, nvecs, len);
|
|
|
|
packets++;
|
|
rcb->rxq->rx_packets++;
|
|
rcb->rxq->rx_bytes += totlen;
|
|
ccb->bytes_per_intr += totlen;
|
|
|
|
masked_flags = flags & flags_cksum_prot_mask;
|
|
|
|
if (likely
|
|
((bnad->netdev->features & NETIF_F_RXCSUM) &&
|
|
((masked_flags == flags_tcp4) ||
|
|
(masked_flags == flags_udp4) ||
|
|
(masked_flags == flags_tcp6) ||
|
|
(masked_flags == flags_udp6))))
|
|
skb->ip_summed = CHECKSUM_UNNECESSARY;
|
|
else
|
|
skb_checksum_none_assert(skb);
|
|
|
|
if ((flags & BNA_CQ_EF_VLAN) &&
|
|
(bnad->netdev->features & NETIF_F_HW_VLAN_CTAG_RX))
|
|
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), ntohs(cmpl->vlan_tag));
|
|
|
|
if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type))
|
|
netif_receive_skb(skb);
|
|
else
|
|
napi_gro_frags(&rx_ctrl->napi);
|
|
|
|
next:
|
|
BNA_QE_INDX_ADD(rcb->consumer_index, nvecs, rcb->q_depth);
|
|
for (vec = 0; vec < nvecs; vec++) {
|
|
cmpl = &cq[ccb->producer_index];
|
|
cmpl->valid = 0;
|
|
BNA_QE_INDX_INC(ccb->producer_index, ccb->q_depth);
|
|
}
|
|
cmpl = &cq[ccb->producer_index];
|
|
}
|
|
|
|
napi_gro_flush(&rx_ctrl->napi, false);
|
|
if (likely(test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags)))
|
|
bna_ib_ack_disable_irq(ccb->i_dbell, packets);
|
|
|
|
bnad_rxq_post(bnad, ccb->rcb[0]);
|
|
if (ccb->rcb[1])
|
|
bnad_rxq_post(bnad, ccb->rcb[1]);
|
|
|
|
return packets;
|
|
}
|
|
|
|
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))) {
|
|
__napi_schedule(napi);
|
|
rx_ctrl->rx_schedule++;
|
|
}
|
|
}
|
|
|
|
/* MSIX Rx Path Handler */
|
|
static irqreturn_t
|
|
bnad_msix_rx(int irq, void *data)
|
|
{
|
|
struct bna_ccb *ccb = (struct bna_ccb *)data;
|
|
|
|
if (ccb) {
|
|
((struct bnad_rx_ctrl *)(ccb->ctrl))->rx_intr_ctr++;
|
|
bnad_netif_rx_schedule_poll(ccb->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;
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))) {
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
bna_intr_status_get(&bnad->bna, intr_status);
|
|
|
|
if (BNA_IS_MBOX_ERR_INTR(&bnad->bna, 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;
|
|
struct bna_tcb *tcb = NULL;
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))) {
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
bna_intr_status_get(&bnad->bna, intr_status);
|
|
|
|
if (unlikely(!intr_status)) {
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
if (BNA_IS_MBOX_ERR_INTR(&bnad->bna, 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++) {
|
|
tcb = bnad->tx_info[i].tcb[j];
|
|
if (tcb && test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))
|
|
bnad_tx_complete(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_mbox_intr_enable(struct bnad *bnad)
|
|
{
|
|
bnad_enable_mbox_irq(bnad);
|
|
}
|
|
|
|
void
|
|
bnad_cb_mbox_intr_disable(struct bnad *bnad)
|
|
{
|
|
bnad_disable_mbox_irq(bnad);
|
|
}
|
|
|
|
void
|
|
bnad_cb_ioceth_ready(struct bnad *bnad)
|
|
{
|
|
bnad->bnad_completions.ioc_comp_status = BNA_CB_SUCCESS;
|
|
complete(&bnad->bnad_completions.ioc_comp);
|
|
}
|
|
|
|
void
|
|
bnad_cb_ioceth_failed(struct bnad *bnad)
|
|
{
|
|
bnad->bnad_completions.ioc_comp_status = BNA_CB_FAIL;
|
|
complete(&bnad->bnad_completions.ioc_comp);
|
|
}
|
|
|
|
void
|
|
bnad_cb_ioceth_disabled(struct bnad *bnad)
|
|
{
|
|
bnad->bnad_completions.ioc_comp_status = BNA_CB_SUCCESS;
|
|
complete(&bnad->bnad_completions.ioc_comp);
|
|
}
|
|
|
|
static void
|
|
bnad_cb_enet_disabled(void *arg)
|
|
{
|
|
struct bnad *bnad = (struct bnad *)arg;
|
|
|
|
netif_carrier_off(bnad->netdev);
|
|
complete(&bnad->bnad_completions.enet_comp);
|
|
}
|
|
|
|
void
|
|
bnad_cb_ethport_link_status(struct bnad *bnad,
|
|
enum bna_link_status link_status)
|
|
{
|
|
bool link_up = false;
|
|
|
|
link_up = (link_status == BNA_LINK_UP) || (link_status == BNA_CEE_UP);
|
|
|
|
if (link_status == BNA_CEE_UP) {
|
|
if (!test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags))
|
|
BNAD_UPDATE_CTR(bnad, cee_toggle);
|
|
set_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags);
|
|
} else {
|
|
if (test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags))
|
|
BNAD_UPDATE_CTR(bnad, cee_toggle);
|
|
clear_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags);
|
|
}
|
|
|
|
if (link_up) {
|
|
if (!netif_carrier_ok(bnad->netdev)) {
|
|
uint tx_id, tcb_id;
|
|
printk(KERN_WARNING "bna: %s link up\n",
|
|
bnad->netdev->name);
|
|
netif_carrier_on(bnad->netdev);
|
|
BNAD_UPDATE_CTR(bnad, link_toggle);
|
|
for (tx_id = 0; tx_id < bnad->num_tx; tx_id++) {
|
|
for (tcb_id = 0; tcb_id < bnad->num_txq_per_tx;
|
|
tcb_id++) {
|
|
struct bna_tcb *tcb =
|
|
bnad->tx_info[tx_id].tcb[tcb_id];
|
|
u32 txq_id;
|
|
if (!tcb)
|
|
continue;
|
|
|
|
txq_id = tcb->id;
|
|
|
|
if (test_bit(BNAD_TXQ_TX_STARTED,
|
|
&tcb->flags)) {
|
|
/*
|
|
* Force an immediate
|
|
* Transmit Schedule */
|
|
printk(KERN_INFO "bna: %s %d "
|
|
"TXQ_STARTED\n",
|
|
bnad->netdev->name,
|
|
txq_id);
|
|
netif_wake_subqueue(
|
|
bnad->netdev,
|
|
txq_id);
|
|
BNAD_UPDATE_CTR(bnad,
|
|
netif_queue_wakeup);
|
|
} else {
|
|
netif_stop_subqueue(
|
|
bnad->netdev,
|
|
txq_id);
|
|
BNAD_UPDATE_CTR(bnad,
|
|
netif_queue_stop);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
if (netif_carrier_ok(bnad->netdev)) {
|
|
printk(KERN_WARNING "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)
|
|
{
|
|
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;
|
|
|
|
tcb->priv = tcb;
|
|
tx_info->tcb[tcb->id] = tcb;
|
|
}
|
|
|
|
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;
|
|
|
|
tx_info->tcb[tcb->id] = NULL;
|
|
tcb->priv = NULL;
|
|
}
|
|
|
|
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_tx *tx)
|
|
{
|
|
struct bnad_tx_info *tx_info =
|
|
(struct bnad_tx_info *)tx->priv;
|
|
struct bna_tcb *tcb;
|
|
u32 txq_id;
|
|
int i;
|
|
|
|
for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) {
|
|
tcb = tx_info->tcb[i];
|
|
if (!tcb)
|
|
continue;
|
|
txq_id = tcb->id;
|
|
clear_bit(BNAD_TXQ_TX_STARTED, &tcb->flags);
|
|
netif_stop_subqueue(bnad->netdev, txq_id);
|
|
printk(KERN_INFO "bna: %s %d TXQ_STOPPED\n",
|
|
bnad->netdev->name, txq_id);
|
|
}
|
|
}
|
|
|
|
static void
|
|
bnad_cb_tx_resume(struct bnad *bnad, struct bna_tx *tx)
|
|
{
|
|
struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv;
|
|
struct bna_tcb *tcb;
|
|
u32 txq_id;
|
|
int i;
|
|
|
|
for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) {
|
|
tcb = tx_info->tcb[i];
|
|
if (!tcb)
|
|
continue;
|
|
txq_id = tcb->id;
|
|
|
|
BUG_ON(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags));
|
|
set_bit(BNAD_TXQ_TX_STARTED, &tcb->flags);
|
|
BUG_ON(*(tcb->hw_consumer_index) != 0);
|
|
|
|
if (netif_carrier_ok(bnad->netdev)) {
|
|
printk(KERN_INFO "bna: %s %d TXQ_STARTED\n",
|
|
bnad->netdev->name, txq_id);
|
|
netif_wake_subqueue(bnad->netdev, txq_id);
|
|
BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Workaround for first ioceth 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_enet_perm_mac_get(&bnad->bna.enet, &bnad->perm_addr);
|
|
bnad_set_netdev_perm_addr(bnad);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Free all TxQs buffers and then notify TX_E_CLEANUP_DONE to Tx fsm.
|
|
*/
|
|
static void
|
|
bnad_tx_cleanup(struct delayed_work *work)
|
|
{
|
|
struct bnad_tx_info *tx_info =
|
|
container_of(work, struct bnad_tx_info, tx_cleanup_work);
|
|
struct bnad *bnad = NULL;
|
|
struct bna_tcb *tcb;
|
|
unsigned long flags;
|
|
u32 i, pending = 0;
|
|
|
|
for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) {
|
|
tcb = tx_info->tcb[i];
|
|
if (!tcb)
|
|
continue;
|
|
|
|
bnad = tcb->bnad;
|
|
|
|
if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) {
|
|
pending++;
|
|
continue;
|
|
}
|
|
|
|
bnad_txq_cleanup(bnad, tcb);
|
|
|
|
smp_mb__before_atomic();
|
|
clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
|
|
}
|
|
|
|
if (pending) {
|
|
queue_delayed_work(bnad->work_q, &tx_info->tx_cleanup_work,
|
|
msecs_to_jiffies(1));
|
|
return;
|
|
}
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_tx_cleanup_complete(tx_info->tx);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
}
|
|
|
|
static void
|
|
bnad_cb_tx_cleanup(struct bnad *bnad, struct bna_tx *tx)
|
|
{
|
|
struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv;
|
|
struct bna_tcb *tcb;
|
|
int i;
|
|
|
|
for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) {
|
|
tcb = tx_info->tcb[i];
|
|
if (!tcb)
|
|
continue;
|
|
}
|
|
|
|
queue_delayed_work(bnad->work_q, &tx_info->tx_cleanup_work, 0);
|
|
}
|
|
|
|
static void
|
|
bnad_cb_rx_stall(struct bnad *bnad, struct bna_rx *rx)
|
|
{
|
|
struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv;
|
|
struct bna_ccb *ccb;
|
|
struct bnad_rx_ctrl *rx_ctrl;
|
|
int i;
|
|
|
|
for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) {
|
|
rx_ctrl = &rx_info->rx_ctrl[i];
|
|
ccb = rx_ctrl->ccb;
|
|
if (!ccb)
|
|
continue;
|
|
|
|
clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[0]->flags);
|
|
|
|
if (ccb->rcb[1])
|
|
clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[1]->flags);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Free all RxQs buffers and then notify RX_E_CLEANUP_DONE to Rx fsm.
|
|
*/
|
|
static void
|
|
bnad_rx_cleanup(void *work)
|
|
{
|
|
struct bnad_rx_info *rx_info =
|
|
container_of(work, struct bnad_rx_info, rx_cleanup_work);
|
|
struct bnad_rx_ctrl *rx_ctrl;
|
|
struct bnad *bnad = NULL;
|
|
unsigned long flags;
|
|
u32 i;
|
|
|
|
for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) {
|
|
rx_ctrl = &rx_info->rx_ctrl[i];
|
|
|
|
if (!rx_ctrl->ccb)
|
|
continue;
|
|
|
|
bnad = rx_ctrl->ccb->bnad;
|
|
|
|
/*
|
|
* Wait till the poll handler has exited
|
|
* and nothing can be scheduled anymore
|
|
*/
|
|
napi_disable(&rx_ctrl->napi);
|
|
|
|
bnad_cq_cleanup(bnad, rx_ctrl->ccb);
|
|
bnad_rxq_cleanup(bnad, rx_ctrl->ccb->rcb[0]);
|
|
if (rx_ctrl->ccb->rcb[1])
|
|
bnad_rxq_cleanup(bnad, rx_ctrl->ccb->rcb[1]);
|
|
}
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_rx_cleanup_complete(rx_info->rx);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
}
|
|
|
|
static void
|
|
bnad_cb_rx_cleanup(struct bnad *bnad, struct bna_rx *rx)
|
|
{
|
|
struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv;
|
|
struct bna_ccb *ccb;
|
|
struct bnad_rx_ctrl *rx_ctrl;
|
|
int i;
|
|
|
|
for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) {
|
|
rx_ctrl = &rx_info->rx_ctrl[i];
|
|
ccb = rx_ctrl->ccb;
|
|
if (!ccb)
|
|
continue;
|
|
|
|
clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags);
|
|
|
|
if (ccb->rcb[1])
|
|
clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[1]->flags);
|
|
}
|
|
|
|
queue_work(bnad->work_q, &rx_info->rx_cleanup_work);
|
|
}
|
|
|
|
static void
|
|
bnad_cb_rx_post(struct bnad *bnad, struct bna_rx *rx)
|
|
{
|
|
struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv;
|
|
struct bna_ccb *ccb;
|
|
struct bna_rcb *rcb;
|
|
struct bnad_rx_ctrl *rx_ctrl;
|
|
int i, j;
|
|
|
|
for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) {
|
|
rx_ctrl = &rx_info->rx_ctrl[i];
|
|
ccb = rx_ctrl->ccb;
|
|
if (!ccb)
|
|
continue;
|
|
|
|
napi_enable(&rx_ctrl->napi);
|
|
|
|
for (j = 0; j < BNAD_MAX_RXQ_PER_RXP; j++) {
|
|
rcb = ccb->rcb[j];
|
|
if (!rcb)
|
|
continue;
|
|
|
|
bnad_rxq_alloc_init(bnad, rcb);
|
|
set_bit(BNAD_RXQ_STARTED, &rcb->flags);
|
|
set_bit(BNAD_RXQ_POST_OK, &rcb->flags);
|
|
bnad_rxq_post(bnad, rcb);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
bnad_cb_rx_disabled(void *arg, struct bna_rx *rx)
|
|
{
|
|
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)
|
|
{
|
|
bnad->bnad_completions.mcast_comp_status = BNA_CB_SUCCESS;
|
|
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));
|
|
}
|
|
|
|
static void
|
|
bnad_cb_enet_mtu_set(struct bnad *bnad)
|
|
{
|
|
bnad->bnad_completions.mtu_comp_status = BNA_CB_SUCCESS;
|
|
complete(&bnad->bnad_completions.mtu_comp);
|
|
}
|
|
|
|
void
|
|
bnad_cb_completion(void *arg, enum bfa_status status)
|
|
{
|
|
struct bnad_iocmd_comp *iocmd_comp =
|
|
(struct bnad_iocmd_comp *)arg;
|
|
|
|
iocmd_comp->comp_status = (u32) status;
|
|
complete(&iocmd_comp->comp);
|
|
}
|
|
|
|
/* 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)
|
|
{
|
|
int irq;
|
|
unsigned long flags;
|
|
|
|
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);
|
|
}
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
int err = 0;
|
|
unsigned long irq_flags, flags;
|
|
u32 irq;
|
|
irq_handler_t irq_handler;
|
|
|
|
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;
|
|
} else {
|
|
irq_handler = (irq_handler_t)bnad_isr;
|
|
irq = bnad->pcidev->irq;
|
|
irq_flags = IRQF_SHARED;
|
|
}
|
|
|
|
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);
|
|
|
|
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,
|
|
u32 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,
|
|
u32 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,
|
|
u32 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,
|
|
u32 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.ioceth.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.ioceth.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.ioceth.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.ioceth.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_hw_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 bnad *bnad = rx_ctrl->bnad;
|
|
int rcvd = 0;
|
|
|
|
rx_ctrl->rx_poll_ctr++;
|
|
|
|
if (!netif_carrier_ok(bnad->netdev))
|
|
goto poll_exit;
|
|
|
|
rcvd = bnad_cq_process(bnad, rx_ctrl->ccb, budget);
|
|
if (rcvd >= budget)
|
|
return rcvd;
|
|
|
|
poll_exit:
|
|
napi_complete(napi);
|
|
|
|
rx_ctrl->rx_complete++;
|
|
|
|
if (rx_ctrl->ccb)
|
|
bnad_enable_rx_irq_unsafe(rx_ctrl->ccb);
|
|
|
|
return rcvd;
|
|
}
|
|
|
|
#define BNAD_NAPI_POLL_QUOTA 64
|
|
static void
|
|
bnad_napi_add(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, BNAD_NAPI_POLL_QUOTA);
|
|
}
|
|
}
|
|
|
|
static void
|
|
bnad_napi_delete(struct bnad *bnad, u32 rx_id)
|
|
{
|
|
int i;
|
|
|
|
/* First disable and then clean up */
|
|
for (i = 0; i < bnad->num_rxp_per_rx; i++)
|
|
netif_napi_del(&bnad->rx_info[rx_id].rx_ctrl[i].napi);
|
|
}
|
|
|
|
/* Should be held with conf_lock held */
|
|
void
|
|
bnad_destroy_tx(struct bnad *bnad, u32 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;
|
|
tx_info->tx_id = 0;
|
|
|
|
bnad_tx_res_free(bnad, res_info);
|
|
}
|
|
|
|
/* Should be held with conf_lock held */
|
|
int
|
|
bnad_setup_tx(struct bnad *bnad, u32 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];
|
|
static const struct bna_tx_event_cbfn tx_cbfn = {
|
|
.tcb_setup_cbfn = bnad_cb_tcb_setup,
|
|
.tcb_destroy_cbfn = bnad_cb_tcb_destroy,
|
|
.tx_stall_cbfn = bnad_cb_tx_stall,
|
|
.tx_resume_cbfn = bnad_cb_tx_resume,
|
|
.tx_cleanup_cbfn = bnad_cb_tx_cleanup,
|
|
};
|
|
|
|
struct bna_tx *tx;
|
|
unsigned long flags;
|
|
|
|
tx_info->tx_id = tx_id;
|
|
|
|
/* 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;
|
|
tx_config->coalescing_timeo = bnad->tx_coalescing_timeo;
|
|
|
|
/* 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, (sizeof(struct bnad_tx_unmap) *
|
|
bnad->txq_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) {
|
|
err = -ENOMEM;
|
|
goto err_return;
|
|
}
|
|
tx_info->tx = tx;
|
|
|
|
INIT_DELAYED_WORK(&tx_info->tx_cleanup_work,
|
|
(work_func_t)bnad_tx_cleanup);
|
|
|
|
/* 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 cleanup_tx;
|
|
}
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_tx_enable(tx);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
|
|
return 0;
|
|
|
|
cleanup_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;
|
|
tx_info->tx_id = 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)
|
|
{
|
|
memset(rx_config, 0, sizeof(*rx_config));
|
|
rx_config->rx_type = BNA_RX_T_REGULAR;
|
|
rx_config->num_paths = bnad->num_rxp_per_rx;
|
|
rx_config->coalescing_timeo = bnad->rx_coalescing_timeo;
|
|
|
|
if (bnad->num_rxp_per_rx > 1) {
|
|
rx_config->rss_status = BNA_STATUS_T_ENABLED;
|
|
rx_config->rss_config.hash_type =
|
|
(BFI_ENET_RSS_IPV6 |
|
|
BFI_ENET_RSS_IPV6_TCP |
|
|
BFI_ENET_RSS_IPV4 |
|
|
BFI_ENET_RSS_IPV4_TCP);
|
|
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->frame_size = BNAD_FRAME_SIZE(bnad->netdev->mtu);
|
|
rx_config->q0_multi_buf = BNA_STATUS_T_DISABLED;
|
|
|
|
/* BNA_RXP_SINGLE - one data-buffer queue
|
|
* BNA_RXP_SLR - one small-buffer and one large-buffer queues
|
|
* BNA_RXP_HDS - one header-buffer and one data-buffer queues
|
|
*/
|
|
/* TODO: configurable param for queue type */
|
|
rx_config->rxp_type = BNA_RXP_SLR;
|
|
|
|
if (BNAD_PCI_DEV_IS_CAT2(bnad) &&
|
|
rx_config->frame_size > 4096) {
|
|
/* though size_routing_enable is set in SLR,
|
|
* small packets may get routed to same rxq.
|
|
* set buf_size to 2048 instead of PAGE_SIZE.
|
|
*/
|
|
rx_config->q0_buf_size = 2048;
|
|
/* this should be in multiples of 2 */
|
|
rx_config->q0_num_vecs = 4;
|
|
rx_config->q0_depth = bnad->rxq_depth * rx_config->q0_num_vecs;
|
|
rx_config->q0_multi_buf = BNA_STATUS_T_ENABLED;
|
|
} else {
|
|
rx_config->q0_buf_size = rx_config->frame_size;
|
|
rx_config->q0_num_vecs = 1;
|
|
rx_config->q0_depth = bnad->rxq_depth;
|
|
}
|
|
|
|
/* initialize for q1 for BNA_RXP_SLR/BNA_RXP_HDS */
|
|
if (rx_config->rxp_type == BNA_RXP_SLR) {
|
|
rx_config->q1_depth = bnad->rxq_depth;
|
|
rx_config->q1_buf_size = BFI_SMALL_RXBUF_SIZE;
|
|
}
|
|
|
|
rx_config->vlan_strip_status =
|
|
(bnad->netdev->features & NETIF_F_HW_VLAN_CTAG_RX) ?
|
|
BNA_STATUS_T_ENABLED : BNA_STATUS_T_DISABLED;
|
|
}
|
|
|
|
static void
|
|
bnad_rx_ctrl_init(struct bnad *bnad, u32 rx_id)
|
|
{
|
|
struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id];
|
|
int i;
|
|
|
|
for (i = 0; i < bnad->num_rxp_per_rx; i++)
|
|
rx_info->rx_ctrl[i].bnad = bnad;
|
|
}
|
|
|
|
/* Called with mutex_lock(&bnad->conf_mutex) held */
|
|
static u32
|
|
bnad_reinit_rx(struct bnad *bnad)
|
|
{
|
|
struct net_device *netdev = bnad->netdev;
|
|
u32 err = 0, current_err = 0;
|
|
u32 rx_id = 0, count = 0;
|
|
unsigned long flags;
|
|
|
|
/* destroy and create new rx objects */
|
|
for (rx_id = 0; rx_id < bnad->num_rx; rx_id++) {
|
|
if (!bnad->rx_info[rx_id].rx)
|
|
continue;
|
|
bnad_destroy_rx(bnad, rx_id);
|
|
}
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_enet_mtu_set(&bnad->bna.enet,
|
|
BNAD_FRAME_SIZE(bnad->netdev->mtu), NULL);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
|
|
for (rx_id = 0; rx_id < bnad->num_rx; rx_id++) {
|
|
count++;
|
|
current_err = bnad_setup_rx(bnad, rx_id);
|
|
if (current_err && !err) {
|
|
err = current_err;
|
|
pr_err("RXQ:%u setup failed\n", rx_id);
|
|
}
|
|
}
|
|
|
|
/* restore rx configuration */
|
|
if (bnad->rx_info[0].rx && !err) {
|
|
bnad_restore_vlans(bnad, 0);
|
|
bnad_enable_default_bcast(bnad);
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bnad_mac_addr_set_locked(bnad, netdev->dev_addr);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
bnad_set_rx_mode(netdev);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
/* Called with bnad_conf_lock() held */
|
|
void
|
|
bnad_destroy_rx(struct bnad *bnad, u32 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 to_del = 0;
|
|
|
|
if (!rx_info->rx)
|
|
return;
|
|
|
|
if (0 == rx_id) {
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED &&
|
|
test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) {
|
|
clear_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags);
|
|
to_del = 1;
|
|
}
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
if (to_del)
|
|
del_timer_sync(&bnad->dim_timer);
|
|
}
|
|
|
|
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);
|
|
|
|
bnad_napi_delete(bnad, rx_id);
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_rx_destroy(rx_info->rx);
|
|
|
|
rx_info->rx = NULL;
|
|
rx_info->rx_id = 0;
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
|
|
bnad_rx_res_free(bnad, res_info);
|
|
}
|
|
|
|
/* Called with mutex_lock(&bnad->conf_mutex) held */
|
|
int
|
|
bnad_setup_rx(struct bnad *bnad, u32 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];
|
|
static const struct bna_rx_event_cbfn rx_cbfn = {
|
|
.rcb_setup_cbfn = NULL,
|
|
.rcb_destroy_cbfn = NULL,
|
|
.ccb_setup_cbfn = bnad_cb_ccb_setup,
|
|
.ccb_destroy_cbfn = bnad_cb_ccb_destroy,
|
|
.rx_stall_cbfn = bnad_cb_rx_stall,
|
|
.rx_cleanup_cbfn = bnad_cb_rx_cleanup,
|
|
.rx_post_cbfn = bnad_cb_rx_post,
|
|
};
|
|
struct bna_rx *rx;
|
|
unsigned long flags;
|
|
|
|
rx_info->rx_id = rx_id;
|
|
|
|
/* Initialize the Rx object configuration */
|
|
bnad_init_rx_config(bnad, rx_config);
|
|
|
|
/* 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_UNMAPDQ],
|
|
rx_config->num_paths,
|
|
(rx_config->q0_depth *
|
|
sizeof(struct bnad_rx_unmap)) +
|
|
sizeof(struct bnad_rx_unmap_q));
|
|
|
|
if (rx_config->rxp_type != BNA_RXP_SINGLE) {
|
|
BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_RX_RES_MEM_T_UNMAPHQ],
|
|
rx_config->num_paths,
|
|
(rx_config->q1_depth *
|
|
sizeof(struct bnad_rx_unmap) +
|
|
sizeof(struct bnad_rx_unmap_q)));
|
|
}
|
|
/* Allocate resource */
|
|
err = bnad_rx_res_alloc(bnad, res_info, rx_id);
|
|
if (err)
|
|
return err;
|
|
|
|
bnad_rx_ctrl_init(bnad, rx_id);
|
|
|
|
/* 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);
|
|
if (!rx) {
|
|
err = -ENOMEM;
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
goto err_return;
|
|
}
|
|
rx_info->rx = rx;
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
|
|
INIT_WORK(&rx_info->rx_cleanup_work,
|
|
(work_func_t)(bnad_rx_cleanup));
|
|
|
|
/*
|
|
* Init NAPI, so that state is set to NAPI_STATE_SCHED,
|
|
* so that IRQ handler cannot schedule NAPI at this point.
|
|
*/
|
|
bnad_napi_add(bnad, rx_id);
|
|
|
|
/* 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;
|
|
}
|
|
|
|
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_destroy_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
|
|
*/
|
|
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 */
|
|
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 mutex_lock(&bnad->conf_mutex) held */
|
|
void
|
|
bnad_restore_vlans(struct bnad *bnad, u32 rx_id)
|
|
{
|
|
u16 vid;
|
|
unsigned long flags;
|
|
|
|
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_enet_stats_mac *mac_stats;
|
|
u32 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 = bna_rx_rid_mask(&bnad->bna);
|
|
for (i = 0; bmap; 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;
|
|
|
|
err = skb_cow_head(skb, 0);
|
|
if (err < 0) {
|
|
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 (vlan_get_protocol(skb) == 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);
|
|
|
|
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_RX * BNAD_MAX_RXP_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, int temp)
|
|
{
|
|
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 ioceth */
|
|
static int
|
|
bnad_ioceth_disable(struct bnad *bnad)
|
|
{
|
|
unsigned long flags;
|
|
int err = 0;
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
init_completion(&bnad->bnad_completions.ioc_comp);
|
|
bna_ioceth_disable(&bnad->bna.ioceth, BNA_HARD_CLEANUP);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
|
|
wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp,
|
|
msecs_to_jiffies(BNAD_IOCETH_TIMEOUT));
|
|
|
|
err = bnad->bnad_completions.ioc_comp_status;
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
bnad_ioceth_enable(struct bnad *bnad)
|
|
{
|
|
int err = 0;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
init_completion(&bnad->bnad_completions.ioc_comp);
|
|
bnad->bnad_completions.ioc_comp_status = BNA_CB_WAITING;
|
|
bna_ioceth_enable(&bnad->bna.ioceth);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
|
|
wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp,
|
|
msecs_to_jiffies(BNAD_IOCETH_TIMEOUT));
|
|
|
|
err = bnad->bnad_completions.ioc_comp_status;
|
|
|
|
return err;
|
|
}
|
|
|
|
/* Free BNA resources */
|
|
static void
|
|
bnad_res_free(struct bnad *bnad, struct bna_res_info *res_info,
|
|
u32 res_val_max)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < res_val_max; i++)
|
|
bnad_mem_free(bnad, &res_info[i].res_u.mem_info);
|
|
}
|
|
|
|
/* Allocates memory and interrupt resources for BNA */
|
|
static int
|
|
bnad_res_alloc(struct bnad *bnad, struct bna_res_info *res_info,
|
|
u32 res_val_max)
|
|
{
|
|
int i, err;
|
|
|
|
for (i = 0; i < res_val_max; i++) {
|
|
err = bnad_mem_alloc(bnad, &res_info[i].res_u.mem_info);
|
|
if (err)
|
|
goto err_return;
|
|
}
|
|
return 0;
|
|
|
|
err_return:
|
|
bnad_res_free(bnad, res_info, res_val_max);
|
|
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_range(bnad->pcidev, bnad->msix_table,
|
|
1, bnad->msix_num);
|
|
if (ret < 0) {
|
|
goto intx_mode;
|
|
} else if (ret < bnad->msix_num) {
|
|
pr_warn("BNA: %d MSI-X vectors allocated < %d requested\n",
|
|
ret, bnad->msix_num);
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
/* ret = #of vectors that we got */
|
|
bnad_q_num_adjust(bnad, (ret - BNAD_MAILBOX_MSIX_VECTORS) / 2,
|
|
(ret - BNAD_MAILBOX_MSIX_VECTORS) / 2);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
|
|
bnad->msix_num = BNAD_NUM_TXQ + BNAD_NUM_RXP +
|
|
BNAD_MAILBOX_MSIX_VECTORS;
|
|
|
|
if (bnad->msix_num > ret) {
|
|
pci_disable_msix(bnad->pcidev);
|
|
goto intx_mode;
|
|
}
|
|
}
|
|
|
|
pci_intx(bnad->pcidev, 0);
|
|
|
|
return;
|
|
|
|
intx_mode:
|
|
pr_warn("BNA: MSI-X enable failed - operating in INTx mode\n");
|
|
|
|
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;
|
|
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;
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_enet_mtu_set(&bnad->bna.enet,
|
|
BNAD_FRAME_SIZE(bnad->netdev->mtu), NULL);
|
|
bna_enet_pause_config(&bnad->bna.enet, &pause_config, NULL);
|
|
bna_enet_enable(&bnad->bna.enet);
|
|
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_destroy_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.enet_comp);
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_enet_disable(&bnad->bna.enet, BNA_HARD_CLEANUP,
|
|
bnad_cb_enet_disabled);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
|
|
wait_for_completion(&bnad->bnad_completions.enet_comp);
|
|
|
|
bnad_destroy_tx(bnad, 0);
|
|
bnad_destroy_rx(bnad, 0);
|
|
|
|
/* Synchronize mailbox IRQ */
|
|
bnad_mbox_irq_sync(bnad);
|
|
|
|
mutex_unlock(&bnad->conf_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* TX */
|
|
/* Returns 0 for success */
|
|
static int
|
|
bnad_txq_wi_prepare(struct bnad *bnad, struct bna_tcb *tcb,
|
|
struct sk_buff *skb, struct bna_txq_entry *txqent)
|
|
{
|
|
u16 flags = 0;
|
|
u32 gso_size;
|
|
u16 vlan_tag = 0;
|
|
|
|
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) << VLAN_PRIO_SHIFT)
|
|
| (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)) {
|
|
gso_size = skb_shinfo(skb)->gso_size;
|
|
if (unlikely(gso_size > bnad->netdev->mtu)) {
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_mss_too_long);
|
|
return -EINVAL;
|
|
}
|
|
if (unlikely((gso_size + skb_transport_offset(skb) +
|
|
tcp_hdrlen(skb)) >= skb->len)) {
|
|
txqent->hdr.wi.opcode = htons(BNA_TXQ_WI_SEND);
|
|
txqent->hdr.wi.lso_mss = 0;
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_tso_too_short);
|
|
} else {
|
|
txqent->hdr.wi.opcode = htons(BNA_TXQ_WI_SEND_LSO);
|
|
txqent->hdr.wi.lso_mss = htons(gso_size);
|
|
}
|
|
|
|
if (bnad_tso_prepare(bnad, skb)) {
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_tso_prepare);
|
|
return -EINVAL;
|
|
}
|
|
|
|
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 {
|
|
txqent->hdr.wi.opcode = htons(BNA_TXQ_WI_SEND);
|
|
txqent->hdr.wi.lso_mss = 0;
|
|
|
|
if (unlikely(skb->len > (bnad->netdev->mtu + VLAN_ETH_HLEN))) {
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_non_tso_too_long);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (skb->ip_summed == CHECKSUM_PARTIAL) {
|
|
__be16 net_proto = vlan_get_protocol(skb);
|
|
u8 proto = 0;
|
|
|
|
if (net_proto == htons(ETH_P_IP))
|
|
proto = ip_hdr(skb)->protocol;
|
|
#ifdef NETIF_F_IPV6_CSUM
|
|
else if (net_proto == htons(ETH_P_IPV6)) {
|
|
/* nexthdr may not be TCP immediately. */
|
|
proto = ipv6_hdr(skb)->nexthdr;
|
|
}
|
|
#endif
|
|
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);
|
|
|
|
if (unlikely(skb_headlen(skb) <
|
|
skb_transport_offset(skb) +
|
|
tcp_hdrlen(skb))) {
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_tcp_hdr);
|
|
return -EINVAL;
|
|
}
|
|
} 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);
|
|
if (unlikely(skb_headlen(skb) <
|
|
skb_transport_offset(skb) +
|
|
sizeof(struct udphdr))) {
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_udp_hdr);
|
|
return -EINVAL;
|
|
}
|
|
} else {
|
|
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_csum_err);
|
|
return -EINVAL;
|
|
}
|
|
} else
|
|
txqent->hdr.wi.l4_hdr_size_n_offset = 0;
|
|
}
|
|
|
|
txqent->hdr.wi.flags = htons(flags);
|
|
txqent->hdr.wi.frame_length = htonl(skb->len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
u32 txq_id = 0;
|
|
struct bna_tcb *tcb = NULL;
|
|
struct bnad_tx_unmap *unmap_q, *unmap, *head_unmap;
|
|
u32 prod, q_depth, vect_id;
|
|
u32 wis, vectors, len;
|
|
int i;
|
|
dma_addr_t dma_addr;
|
|
struct bna_txq_entry *txqent;
|
|
|
|
len = skb_headlen(skb);
|
|
|
|
/* Sanity checks for the skb */
|
|
|
|
if (unlikely(skb->len <= ETH_HLEN)) {
|
|
dev_kfree_skb_any(skb);
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_too_short);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
if (unlikely(len > BFI_TX_MAX_DATA_PER_VECTOR)) {
|
|
dev_kfree_skb_any(skb);
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_headlen_zero);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
if (unlikely(len == 0)) {
|
|
dev_kfree_skb_any(skb);
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_headlen_zero);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
tcb = bnad->tx_info[0].tcb[txq_id];
|
|
|
|
/*
|
|
* Takes care of the Tx that is scheduled between clearing the flag
|
|
* and the netif_tx_stop_all_queues() call.
|
|
*/
|
|
if (unlikely(!tcb || !test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) {
|
|
dev_kfree_skb_any(skb);
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_stopping);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
q_depth = tcb->q_depth;
|
|
prod = tcb->producer_index;
|
|
unmap_q = tcb->unmap_q;
|
|
|
|
vectors = 1 + skb_shinfo(skb)->nr_frags;
|
|
wis = BNA_TXQ_WI_NEEDED(vectors); /* 4 vectors per work item */
|
|
|
|
if (unlikely(vectors > BFI_TX_MAX_VECTORS_PER_PKT)) {
|
|
dev_kfree_skb_any(skb);
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_max_vectors);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
/* Check for available TxQ resources */
|
|
if (unlikely(wis > BNA_QE_FREE_CNT(tcb, q_depth))) {
|
|
if ((*tcb->hw_consumer_index != tcb->consumer_index) &&
|
|
!test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) {
|
|
u32 sent;
|
|
sent = bnad_txcmpl_process(bnad, tcb);
|
|
if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)))
|
|
bna_ib_ack(tcb->i_dbell, sent);
|
|
smp_mb__before_atomic();
|
|
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, 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);
|
|
}
|
|
}
|
|
|
|
txqent = &((struct bna_txq_entry *)tcb->sw_q)[prod];
|
|
head_unmap = &unmap_q[prod];
|
|
|
|
/* Program the opcode, flags, frame_len, num_vectors in WI */
|
|
if (bnad_txq_wi_prepare(bnad, tcb, skb, txqent)) {
|
|
dev_kfree_skb_any(skb);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
txqent->hdr.wi.reserved = 0;
|
|
txqent->hdr.wi.num_vectors = vectors;
|
|
|
|
head_unmap->skb = skb;
|
|
head_unmap->nvecs = 0;
|
|
|
|
/* Program the vectors */
|
|
unmap = head_unmap;
|
|
dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data,
|
|
len, DMA_TO_DEVICE);
|
|
BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[0].host_addr);
|
|
txqent->vector[0].length = htons(len);
|
|
dma_unmap_addr_set(&unmap->vectors[0], dma_addr, dma_addr);
|
|
head_unmap->nvecs++;
|
|
|
|
for (i = 0, vect_id = 0; i < vectors - 1; i++) {
|
|
const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
|
|
u32 size = skb_frag_size(frag);
|
|
|
|
if (unlikely(size == 0)) {
|
|
/* Undo the changes starting at tcb->producer_index */
|
|
bnad_tx_buff_unmap(bnad, unmap_q, q_depth,
|
|
tcb->producer_index);
|
|
dev_kfree_skb_any(skb);
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_frag_zero);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
len += size;
|
|
|
|
vect_id++;
|
|
if (vect_id == BFI_TX_MAX_VECTORS_PER_WI) {
|
|
vect_id = 0;
|
|
BNA_QE_INDX_INC(prod, q_depth);
|
|
txqent = &((struct bna_txq_entry *)tcb->sw_q)[prod];
|
|
txqent->hdr.wi_ext.opcode = htons(BNA_TXQ_WI_EXTENSION);
|
|
unmap = &unmap_q[prod];
|
|
}
|
|
|
|
dma_addr = skb_frag_dma_map(&bnad->pcidev->dev, frag,
|
|
0, size, DMA_TO_DEVICE);
|
|
dma_unmap_len_set(&unmap->vectors[vect_id], dma_len, size);
|
|
BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[vect_id].host_addr);
|
|
txqent->vector[vect_id].length = htons(size);
|
|
dma_unmap_addr_set(&unmap->vectors[vect_id], dma_addr,
|
|
dma_addr);
|
|
head_unmap->nvecs++;
|
|
}
|
|
|
|
if (unlikely(len != skb->len)) {
|
|
/* Undo the changes starting at tcb->producer_index */
|
|
bnad_tx_buff_unmap(bnad, unmap_q, q_depth, tcb->producer_index);
|
|
dev_kfree_skb_any(skb);
|
|
BNAD_UPDATE_CTR(bnad, tx_skb_len_mismatch);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
BNA_QE_INDX_INC(prod, q_depth);
|
|
tcb->producer_index = prod;
|
|
|
|
smp_mb();
|
|
|
|
if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)))
|
|
return NETDEV_TX_OK;
|
|
|
|
skb_tx_timestamp(skb);
|
|
|
|
bna_txq_prod_indx_doorbell(tcb);
|
|
smp_mb();
|
|
|
|
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_ucast_fltr(struct bnad *bnad)
|
|
{
|
|
struct net_device *netdev = bnad->netdev;
|
|
int uc_count = netdev_uc_count(netdev);
|
|
enum bna_cb_status ret;
|
|
u8 *mac_list;
|
|
struct netdev_hw_addr *ha;
|
|
int entry;
|
|
|
|
if (netdev_uc_empty(bnad->netdev)) {
|
|
bna_rx_ucast_listset(bnad->rx_info[0].rx, 0, NULL, NULL);
|
|
return;
|
|
}
|
|
|
|
if (uc_count > bna_attr(&bnad->bna)->num_ucmac)
|
|
goto mode_default;
|
|
|
|
mac_list = kzalloc(uc_count * ETH_ALEN, GFP_ATOMIC);
|
|
if (mac_list == NULL)
|
|
goto mode_default;
|
|
|
|
entry = 0;
|
|
netdev_for_each_uc_addr(ha, netdev) {
|
|
memcpy(&mac_list[entry * ETH_ALEN],
|
|
&ha->addr[0], ETH_ALEN);
|
|
entry++;
|
|
}
|
|
|
|
ret = bna_rx_ucast_listset(bnad->rx_info[0].rx, entry,
|
|
mac_list, NULL);
|
|
kfree(mac_list);
|
|
|
|
if (ret != BNA_CB_SUCCESS)
|
|
goto mode_default;
|
|
|
|
return;
|
|
|
|
/* ucast packets not in UCAM are routed to default function */
|
|
mode_default:
|
|
bnad->cfg_flags |= BNAD_CF_DEFAULT;
|
|
bna_rx_ucast_listset(bnad->rx_info[0].rx, 0, NULL, NULL);
|
|
}
|
|
|
|
static void
|
|
bnad_set_rx_mcast_fltr(struct bnad *bnad)
|
|
{
|
|
struct net_device *netdev = bnad->netdev;
|
|
int mc_count = netdev_mc_count(netdev);
|
|
enum bna_cb_status ret;
|
|
u8 *mac_list;
|
|
|
|
if (netdev->flags & IFF_ALLMULTI)
|
|
goto mode_allmulti;
|
|
|
|
if (netdev_mc_empty(netdev))
|
|
return;
|
|
|
|
if (mc_count > bna_attr(&bnad->bna)->num_mcmac)
|
|
goto mode_allmulti;
|
|
|
|
mac_list = kzalloc((mc_count + 1) * ETH_ALEN, GFP_ATOMIC);
|
|
|
|
if (mac_list == NULL)
|
|
goto mode_allmulti;
|
|
|
|
memcpy(&mac_list[0], &bnad_bcast_addr[0], ETH_ALEN);
|
|
|
|
/* copy rest of the MCAST addresses */
|
|
bnad_netdev_mc_list_get(netdev, mac_list);
|
|
ret = bna_rx_mcast_listset(bnad->rx_info[0].rx, mc_count + 1,
|
|
mac_list, NULL);
|
|
kfree(mac_list);
|
|
|
|
if (ret != BNA_CB_SUCCESS)
|
|
goto mode_allmulti;
|
|
|
|
return;
|
|
|
|
mode_allmulti:
|
|
bnad->cfg_flags |= BNAD_CF_ALLMULTI;
|
|
bna_rx_mcast_delall(bnad->rx_info[0].rx, NULL);
|
|
}
|
|
|
|
void
|
|
bnad_set_rx_mode(struct net_device *netdev)
|
|
{
|
|
struct bnad *bnad = netdev_priv(netdev);
|
|
enum bna_rxmode new_mode, mode_mask;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
|
|
if (bnad->rx_info[0].rx == NULL) {
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
return;
|
|
}
|
|
|
|
/* clear bnad flags to update it with new settings */
|
|
bnad->cfg_flags &= ~(BNAD_CF_PROMISC | BNAD_CF_DEFAULT |
|
|
BNAD_CF_ALLMULTI);
|
|
|
|
new_mode = 0;
|
|
if (netdev->flags & IFF_PROMISC) {
|
|
new_mode |= BNAD_RXMODE_PROMISC_DEFAULT;
|
|
bnad->cfg_flags |= BNAD_CF_PROMISC;
|
|
} else {
|
|
bnad_set_rx_mcast_fltr(bnad);
|
|
|
|
if (bnad->cfg_flags & BNAD_CF_ALLMULTI)
|
|
new_mode |= BNA_RXMODE_ALLMULTI;
|
|
|
|
bnad_set_rx_ucast_fltr(bnad);
|
|
|
|
if (bnad->cfg_flags & BNAD_CF_DEFAULT)
|
|
new_mode |= BNA_RXMODE_DEFAULT;
|
|
}
|
|
|
|
mode_mask = BNA_RXMODE_PROMISC | BNA_RXMODE_DEFAULT |
|
|
BNA_RXMODE_ALLMULTI;
|
|
bna_rx_mode_set(bnad->rx_info[0].rx, new_mode, mode_mask, NULL);
|
|
|
|
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_mtu_set(struct bnad *bnad, int frame_size)
|
|
{
|
|
unsigned long flags;
|
|
|
|
init_completion(&bnad->bnad_completions.mtu_comp);
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_enet_mtu_set(&bnad->bna.enet, frame_size, bnad_cb_enet_mtu_set);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
|
|
wait_for_completion(&bnad->bnad_completions.mtu_comp);
|
|
|
|
return bnad->bnad_completions.mtu_comp_status;
|
|
}
|
|
|
|
static int
|
|
bnad_change_mtu(struct net_device *netdev, int new_mtu)
|
|
{
|
|
int err, mtu;
|
|
struct bnad *bnad = netdev_priv(netdev);
|
|
u32 rx_count = 0, frame, new_frame;
|
|
|
|
if (new_mtu + ETH_HLEN < ETH_ZLEN || new_mtu > BNAD_JUMBO_MTU)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&bnad->conf_mutex);
|
|
|
|
mtu = netdev->mtu;
|
|
netdev->mtu = new_mtu;
|
|
|
|
frame = BNAD_FRAME_SIZE(mtu);
|
|
new_frame = BNAD_FRAME_SIZE(new_mtu);
|
|
|
|
/* check if multi-buffer needs to be enabled */
|
|
if (BNAD_PCI_DEV_IS_CAT2(bnad) &&
|
|
netif_running(bnad->netdev)) {
|
|
/* only when transition is over 4K */
|
|
if ((frame <= 4096 && new_frame > 4096) ||
|
|
(frame > 4096 && new_frame <= 4096))
|
|
rx_count = bnad_reinit_rx(bnad);
|
|
}
|
|
|
|
/* rx_count > 0 - new rx created
|
|
* - Linux set err = 0 and return
|
|
*/
|
|
err = bnad_mtu_set(bnad, new_frame);
|
|
if (err)
|
|
err = -EBUSY;
|
|
|
|
mutex_unlock(&bnad->conf_mutex);
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
bnad_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
|
|
{
|
|
struct bnad *bnad = netdev_priv(netdev);
|
|
unsigned long flags;
|
|
|
|
if (!bnad->rx_info[0].rx)
|
|
return 0;
|
|
|
|
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);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
bnad_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid)
|
|
{
|
|
struct bnad *bnad = netdev_priv(netdev);
|
|
unsigned long flags;
|
|
|
|
if (!bnad->rx_info[0].rx)
|
|
return 0;
|
|
|
|
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);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bnad_set_features(struct net_device *dev, netdev_features_t features)
|
|
{
|
|
struct bnad *bnad = netdev_priv(dev);
|
|
netdev_features_t changed = features ^ dev->features;
|
|
|
|
if ((changed & NETIF_F_HW_VLAN_CTAG_RX) && netif_running(dev)) {
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
|
|
if (features & NETIF_F_HW_VLAN_CTAG_RX)
|
|
bna_rx_vlan_strip_enable(bnad->rx_info[0].rx);
|
|
else
|
|
bna_rx_vlan_strip_disable(bnad->rx_info[0].rx);
|
|
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#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 {
|
|
/*
|
|
* Tx processing may happen in sending context, so no need
|
|
* to explicitly process completions here
|
|
*/
|
|
|
|
/* 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);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#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_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,
|
|
.ndo_set_features = bnad_set_features,
|
|
#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_CTAG_TX |
|
|
NETIF_F_HW_VLAN_CTAG_RX;
|
|
|
|
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_CTAG_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. Initialize no. of TxQ & CQs & MSIX vectors
|
|
* 4. Initialize work queue.
|
|
*/
|
|
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");
|
|
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;
|
|
|
|
sprintf(bnad->wq_name, "%s_wq_%d", BNAD_NAME, bnad->id);
|
|
bnad->work_q = create_singlethread_workqueue(bnad->wq_name);
|
|
if (!bnad->work_q) {
|
|
iounmap(bnad->bar0);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
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->work_q) {
|
|
flush_workqueue(bnad->work_q);
|
|
destroy_workqueue(bnad->work_q);
|
|
bnad->work_q = NULL;
|
|
}
|
|
|
|
if (bnad->bar0)
|
|
iounmap(bnad->bar0);
|
|
}
|
|
|
|
/*
|
|
* Initialize locks
|
|
a) Per ioceth 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);
|
|
mutex_init(&bnad_list_mutex);
|
|
}
|
|
|
|
static void
|
|
bnad_lock_uninit(struct bnad *bnad)
|
|
{
|
|
mutex_destroy(&bnad->conf_mutex);
|
|
mutex_destroy(&bnad_list_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_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
|
|
*using_dac = true;
|
|
} else {
|
|
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
|
|
if (err)
|
|
goto release_regions;
|
|
*using_dac = false;
|
|
}
|
|
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
|
|
bnad_pci_probe(struct pci_dev *pdev,
|
|
const struct pci_device_id *pcidev_id)
|
|
{
|
|
bool using_dac;
|
|
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) {
|
|
err = -ENOMEM;
|
|
return err;
|
|
}
|
|
bnad = netdev_priv(netdev);
|
|
bnad_lock_init(bnad);
|
|
bnad_add_to_list(bnad);
|
|
|
|
mutex_lock(&bnad->conf_mutex);
|
|
/*
|
|
* PCI initialization
|
|
* Output : using_dac = 1 for 64 bit DMA
|
|
* = 0 for 32 bit DMA
|
|
*/
|
|
using_dac = false;
|
|
err = bnad_pci_init(bnad, pdev, &using_dac);
|
|
if (err)
|
|
goto unlock_mutex;
|
|
|
|
/*
|
|
* Initialize bnad structure
|
|
* Setup relation between pci_dev & netdev
|
|
*/
|
|
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);
|
|
|
|
/* Setup the debugfs node for this bfad */
|
|
if (bna_debugfs_enable)
|
|
bnad_debugfs_init(bnad);
|
|
|
|
/* Get resource requirement form bna */
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_res_req(&bnad->res_info[0]);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
|
|
/* Allocate resources from bna */
|
|
err = bnad_res_alloc(bnad, &bnad->res_info[0], BNA_RES_T_MAX);
|
|
if (err)
|
|
goto drv_uninit;
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
bnad_enable_msix(bnad);
|
|
err = bnad_mbox_irq_alloc(bnad);
|
|
if (err)
|
|
goto res_free;
|
|
|
|
/* Set up timers */
|
|
setup_timer(&bnad->bna.ioceth.ioc.ioc_timer, bnad_ioc_timeout,
|
|
((unsigned long)bnad));
|
|
setup_timer(&bnad->bna.ioceth.ioc.hb_timer, bnad_ioc_hb_check,
|
|
((unsigned long)bnad));
|
|
setup_timer(&bnad->bna.ioceth.ioc.iocpf_timer, bnad_iocpf_timeout,
|
|
((unsigned long)bnad));
|
|
setup_timer(&bnad->bna.ioceth.ioc.sem_timer, bnad_iocpf_sem_timeout,
|
|
((unsigned long)bnad));
|
|
|
|
/* Now start the timer before calling IOC */
|
|
mod_timer(&bnad->bna.ioceth.ioc.iocpf_timer,
|
|
jiffies + msecs_to_jiffies(BNA_IOC_TIMER_FREQ));
|
|
|
|
/*
|
|
* Start the chip
|
|
* If the call back comes with error, we bail out.
|
|
* This is a catastrophic error.
|
|
*/
|
|
err = bnad_ioceth_enable(bnad);
|
|
if (err) {
|
|
pr_err("BNA: Initialization failed err=%d\n",
|
|
err);
|
|
goto probe_success;
|
|
}
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) ||
|
|
bna_num_rxp_set(bna, BNAD_NUM_RXP + 1)) {
|
|
bnad_q_num_adjust(bnad, bna_attr(bna)->num_txq - 1,
|
|
bna_attr(bna)->num_rxp - 1);
|
|
if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) ||
|
|
bna_num_rxp_set(bna, BNAD_NUM_RXP + 1))
|
|
err = -EIO;
|
|
}
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
if (err)
|
|
goto disable_ioceth;
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_mod_res_req(&bnad->bna, &bnad->mod_res_info[0]);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
|
|
err = bnad_res_alloc(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX);
|
|
if (err) {
|
|
err = -EIO;
|
|
goto disable_ioceth;
|
|
}
|
|
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_mod_init(&bnad->bna, &bnad->mod_res_info[0]);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
|
|
/* Get the burnt-in mac */
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_enet_perm_mac_get(&bna->enet, &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 probe_uninit;
|
|
}
|
|
set_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags);
|
|
|
|
return 0;
|
|
|
|
probe_success:
|
|
mutex_unlock(&bnad->conf_mutex);
|
|
return 0;
|
|
|
|
probe_uninit:
|
|
mutex_lock(&bnad->conf_mutex);
|
|
bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX);
|
|
disable_ioceth:
|
|
bnad_ioceth_disable(bnad);
|
|
del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer);
|
|
del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer);
|
|
del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer);
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_uninit(bna);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
bnad_mbox_irq_free(bnad);
|
|
bnad_disable_msix(bnad);
|
|
res_free:
|
|
bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX);
|
|
drv_uninit:
|
|
/* Remove the debugfs node for this bnad */
|
|
kfree(bnad->regdata);
|
|
bnad_debugfs_uninit(bnad);
|
|
bnad_uninit(bnad);
|
|
pci_uninit:
|
|
bnad_pci_uninit(pdev);
|
|
unlock_mutex:
|
|
mutex_unlock(&bnad->conf_mutex);
|
|
bnad_remove_from_list(bnad);
|
|
bnad_lock_uninit(bnad);
|
|
free_netdev(netdev);
|
|
return err;
|
|
}
|
|
|
|
static void
|
|
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;
|
|
|
|
if (test_and_clear_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags))
|
|
unregister_netdev(netdev);
|
|
|
|
mutex_lock(&bnad->conf_mutex);
|
|
bnad_ioceth_disable(bnad);
|
|
del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer);
|
|
del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer);
|
|
del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer);
|
|
spin_lock_irqsave(&bnad->bna_lock, flags);
|
|
bna_uninit(bna);
|
|
spin_unlock_irqrestore(&bnad->bna_lock, flags);
|
|
|
|
bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX);
|
|
bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX);
|
|
bnad_mbox_irq_free(bnad);
|
|
bnad_disable_msix(bnad);
|
|
bnad_pci_uninit(pdev);
|
|
mutex_unlock(&bnad->conf_mutex);
|
|
bnad_remove_from_list(bnad);
|
|
bnad_lock_uninit(bnad);
|
|
/* Remove the debugfs node for this bnad */
|
|
kfree(bnad->regdata);
|
|
bnad_debugfs_uninit(bnad);
|
|
bnad_uninit(bnad);
|
|
free_netdev(netdev);
|
|
}
|
|
|
|
static const struct pci_device_id bnad_pci_id_table[] = {
|
|
{
|
|
PCI_DEVICE(PCI_VENDOR_ID_BROCADE,
|
|
PCI_DEVICE_ID_BROCADE_CT),
|
|
.class = PCI_CLASS_NETWORK_ETHERNET << 8,
|
|
.class_mask = 0xffff00
|
|
},
|
|
{
|
|
PCI_DEVICE(PCI_VENDOR_ID_BROCADE,
|
|
BFA_PCI_DEVICE_ID_CT2),
|
|
.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 = 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);
|
|
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);
|
|
MODULE_FIRMWARE(CNA_FW_FILE_CT2);
|