drivers/net/chelsio/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, write to the Free Software Foundation, Inc.,   *
  15  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
  16  *                                                                           *
  17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
  18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
  20  *                                                                           *
  21  * http://www.chelsio.com                                                    *
  22  *                                                                           *
  23  * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
  24  * All rights reserved.                                                      *
  25  *                                                                           *
  26  * Maintainers: maintainers@chelsio.com                                      *
  27  *                                                                           *
  28  * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
  29  *          Tina Yang               <tainay@chelsio.com>                     *
  30  *          Felix Marti             <felix@chelsio.com>                      *
  31  *          Scott Bardone           <sbardone@chelsio.com>                   *
  32  *          Kurt Ottaway            <kottaway@chelsio.com>                   *
  33  *          Frank DiMambro          <frank@chelsio.com>                      *
  34  *                                                                           *
  35  * History:                                                                  *
  36  *                                                                           *
  37  ****************************************************************************/
  38
  39 #ifndef _CXGB_SGE_H_
  40 #define _CXGB_SGE_H_
  41
  42 #include <linux/types.h>
  43 #include <linux/interrupt.h>
  44 #include <asm/byteorder.h>
  45
  46 #ifndef IRQ_RETVAL
  47 #define IRQ_RETVAL(x)
  48 typedef void irqreturn_t;
  49 #endif
  50
  51 typedef irqreturn_t (*intr_handler_t)(int, void *, struct pt_regs *);
  52
  53 struct sge_intr_counts {
  54         unsigned int respQ_empty;      /* # times respQ empty */
  55         unsigned int respQ_overflow;   /* # respQ overflow (fatal) */
  56         unsigned int freelistQ_empty;  /* # times freelist empty */
  57         unsigned int pkt_too_big;      /* packet too large (fatal) */
  58         unsigned int pkt_mismatch;
  59         unsigned int cmdQ_full[3];     /* not HW IRQ, host cmdQ[] full */
  60         unsigned int cmdQ_restarted[3];/* # of times cmdQ X was restarted */
  61         unsigned int ethernet_pkts;    /* # of Ethernet packets received */
  62         unsigned int offload_pkts;     /* # of offload packets received */
  63         unsigned int offload_bundles;  /* # of offload pkt bundles delivered */
  64         unsigned int pure_rsps;        /* # of non-payload responses */
  65         unsigned int unhandled_irqs;   /* # of unhandled interrupts */
  66         unsigned int tx_ipfrags;
  67         unsigned int tx_reg_pkts;
  68         unsigned int tx_lso_pkts;
  69         unsigned int tx_do_cksum;
  70 };
  71
  72 struct sge_port_stats {
  73         unsigned long rx_cso_good;     /* # of successful RX csum offloads */
  74         unsigned long tx_cso;          /* # of TX checksum offloads */
  75         unsigned long vlan_xtract;     /* # of VLAN tag extractions */
  76         unsigned long vlan_insert;     /* # of VLAN tag extractions */
  77         unsigned long tso;             /* # of TSO requests */
  78         unsigned long rx_drops;        /* # of packets dropped due to no mem */
  79 };
  80
  81 struct sk_buff;
  82 struct net_device;
  83 struct adapter;
  84 struct sge_params;
  85 struct sge;
  86
  87 struct sge *t1_sge_create(struct adapter *, struct sge_params *);
  88 int t1_sge_configure(struct sge *, struct sge_params *);
  89 int t1_sge_set_coalesce_params(struct sge *, struct sge_params *);
  90 void t1_sge_destroy(struct sge *);
  91 intr_handler_t t1_select_intr_handler(adapter_t *adapter);
  92 unsigned int t1_sge_tx(struct sk_buff *skb, struct adapter *adapter,
  93                        unsigned int qid, struct net_device *netdev);
  94 int t1_start_xmit(struct sk_buff *skb, struct net_device *dev);
  95 void t1_set_vlan_accel(struct adapter *adapter, int on_off);
  96 void t1_sge_start(struct sge *);
  97 void t1_sge_stop(struct sge *);
  98 int t1_sge_intr_error_handler(struct sge *);
  99 void t1_sge_intr_enable(struct sge *);
 100 void t1_sge_intr_disable(struct sge *);
 101 void t1_sge_intr_clear(struct sge *);
 102 const struct sge_intr_counts *t1_sge_get_intr_counts(struct sge *sge);
 103 const struct sge_port_stats *t1_sge_get_port_stats(struct sge *sge, int port);
 104
 105 #endif /* _CXGB_SGE_H_ */