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
  45 struct 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
  58 struct 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
  67 struct sk_buff;
  68 struct net_device;
  69 struct adapter;
  70 struct sge_params;
  71 struct sge;
  72
  73 struct sge *t1_sge_create(struct adapter *, struct sge_params *);
  74 int t1_sge_configure(struct sge *, struct sge_params *);
  75 int t1_sge_set_coalesce_params(struct sge *, struct sge_params *);
  76 void t1_sge_destroy(struct sge *);
  77 irqreturn_t t1_interrupt(int irq, void *cookie);
  78 int t1_poll(struct napi_struct *, int);
  79
  80 netdev_tx_t t1_start_xmit(struct sk_buff *skb, struct net_device *dev);
  81 void t1_vlan_mode(struct adapter *adapter, netdev_features_t features);
  82 void t1_sge_start(struct sge *);
  83 void t1_sge_stop(struct sge *);
  84 int t1_sge_intr_error_handler(struct sge *);
  85 void t1_sge_intr_enable(struct sge *);
  86 void t1_sge_intr_disable(struct sge *);
  87 void t1_sge_intr_clear(struct sge *);
  88 const struct sge_intr_counts *t1_sge_get_intr_counts(const struct sge *sge);
  89 void t1_sge_get_port_stats(const struct sge *sge, int port, struct sge_port_stats *);
  90 unsigned int t1_sched_update_parms(struct sge *, unsigned int, unsigned int,
  91                            unsigned int);
  92
  93 #endif /* _CXGB_SGE_H_ */