LXR linux/drivers/net/ethernet/chelsio/cxgb/sge.h

   1/*****************************************************************************
   2 *                                                                           *
   3 * File: sge.h                                                               *
   4 * $Revision: 1.11 $                                                          *
   5 * $Date: 2005/06/21 22:10:55 $                                              *
   6 * Description:                                                              *
   7 *  part of the Chelsio 10Gb Ethernet Driver.                                *
   8 *                                                                           *
   9 * This program is free software; you can redistribute it and/or modify      *
  10 * it under the terms of the GNU General Public License, version 2, as       *
  11 * published by the Free Software Foundation.                                *
  12 *                                                                           *
  13 * You should have received a copy of the GNU General Public License along   *
  14 * with this program; if not, see <http://www.gnu.org/licenses/>.            *
  15 *                                                                           *
  16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
  17 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
  18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
  19 *                                                                           *
  20 * http://www.chelsio.com                                                    *
  21 *                                                                           *
  22 * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
  23 * All rights reserved.                                                      *
  24 *                                                                           *
  25 * Maintainers: maintainers@chelsio.com                                      *
  26 *                                                                           *
  27 * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
  28 *          Tina Yang               <tainay@chelsio.com>                     *
  29 *          Felix Marti             <felix@chelsio.com>                      *
  30 *          Scott Bardone           <sbardone@chelsio.com>                   *
  31 *          Kurt Ottaway            <kottaway@chelsio.com>                   *
  32 *          Frank DiMambro          <frank@chelsio.com>                      *
  33 *                                                                           *
  34 * History:                                                                  *
  35 *                                                                           *
  36 ****************************************************************************/
  37
  38#ifndef _CXGB_SGE_H_
  39#define _CXGB_SGE_H_
  40
  41#include <linux/types.h>
  42#include <linux/interrupt.h>
  43#include <asm/byteorder.h>
  44
  45struct sge_intr_counts {
  46        unsigned int rx_drops;        /* # of packets dropped due to no mem */
  47        unsigned int pure_rsps;        /* # of non-payload responses */
  48        unsigned int unhandled_irqs;   /* # of unhandled interrupts */
  49        unsigned int respQ_empty;      /* # times respQ empty */
  50        unsigned int respQ_overflow;   /* # respQ overflow (fatal) */
  51        unsigned int freelistQ_empty;  /* # times freelist empty */
  52        unsigned int pkt_too_big;      /* packet too large (fatal) */
  53        unsigned int pkt_mismatch;
  54        unsigned int cmdQ_full[3];     /* not HW IRQ, host cmdQ[] full */
  55        unsigned int cmdQ_restarted[3];/* # of times cmdQ X was restarted */
  56};
  57
  58struct sge_port_stats {
  59        u64 rx_cso_good;     /* # of successful RX csum offloads */
  60        u64 tx_cso;          /* # of TX checksum offloads */
  61        u64 tx_tso;          /* # of TSO requests */
  62        u64 vlan_xtract;     /* # of VLAN tag extractions */
  63        u64 vlan_insert;     /* # of VLAN tag insertions */
  64        u64 tx_need_hdrroom; /* # of TX skbs in need of more header room */
  65};
  66
  67struct sk_buff;
  68struct net_device;
  69struct adapter;
  70struct sge_params;
  71struct sge;
  72
  73struct sge *t1_sge_create(struct adapter *, struct sge_params *);
  74int t1_sge_configure(struct sge *, struct sge_params *);
  75int t1_sge_set_coalesce_params(struct sge *, struct sge_params *);
  76void t1_sge_destroy(struct sge *);
  77irqreturn_t t1_interrupt_thread(int irq, void *data);
  78irqreturn_t t1_interrupt(int irq, void *cookie);
  79int t1_poll(struct napi_struct *, int);
  80
  81netdev_tx_t t1_start_xmit(struct sk_buff *skb, struct net_device *dev);
  82void t1_vlan_mode(struct adapter *adapter, netdev_features_t features);
  83void t1_sge_start(struct sge *);
  84void t1_sge_stop(struct sge *);
  85bool t1_sge_intr_error_handler(struct sge *sge);
  86void t1_sge_intr_enable(struct sge *);
  87void t1_sge_intr_disable(struct sge *);
  88void t1_sge_intr_clear(struct sge *);
  89const struct sge_intr_counts *t1_sge_get_intr_counts(const struct sge *sge);
  90void t1_sge_get_port_stats(const struct sge *sge, int port, struct sge_port_stats *);
  91unsigned int t1_sched_update_parms(struct sge *, unsigned int, unsigned int,
  92                           unsigned int);
  93
  94#endif /* _CXGB_SGE_H_ */
  95