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_thread(int irq, void *data);
78 irqreturn_t t1_interrupt(int irq, void *cookie);
79 int t1_poll(struct napi_struct *, int);
80 
81 netdev_tx_t t1_start_xmit(struct sk_buff *skb, struct net_device *dev);
82 void t1_vlan_mode(struct adapter *adapter, netdev_features_t features);
83 void t1_sge_start(struct sge *);
84 void t1_sge_stop(struct sge *);
85 bool t1_sge_intr_error_handler(struct sge *sge);
86 void t1_sge_intr_enable(struct sge *);
87 void t1_sge_intr_disable(struct sge *);
88 void t1_sge_intr_clear(struct sge *);
89 const struct sge_intr_counts *t1_sge_get_intr_counts(const struct sge *sge);
90 void t1_sge_get_port_stats(const struct sge *sge, int port, struct sge_port_stats *);
91 unsigned int t1_sched_update_parms(struct sge *, unsigned int, unsigned int,
92 			   unsigned int);
93 
94 #endif /* _CXGB_SGE_H_ */
95