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authorChristoph Lameter <christoph@graphe.net>2005-03-30 16:34:31 -0500
committerJeff Garzik <jgarzik@pobox.com>2005-05-15 19:15:02 -0400
commit8199d3a79c224bbe5943fa08684e1f93a17881b0 (patch)
tree77726ddade7ca4282bc12315abcb01fdf241be74 /drivers/net/chelsio/gmac.h
parent88d7bd8cb9eb8d64bf7997600b0d64f7834047c5 (diff)
[PATCH] A new 10GB Ethernet Driver by Chelsio Communications
A Linux driver for the Chelsio 10Gb Ethernet Network Controller by Chelsio (http://www.chelsio.com). This driver supports the Chelsio N210 NIC and is backward compatible with the Chelsio N110 model 10Gb NICs. It supports AMD64, EM64T and x86 systems. Signed-off-by: Tina Yang <tinay@chelsio.com> Signed-off-by: Scott Bardone <sbardone@chelsio.com> Signed-off-by: Christoph Lameter <christoph@lameter.com> Adrian said: - my3126.c is unused (because t1_my3126_ops isn't used anywhere) - what are the EXTRA_CFLAGS in drivers/net/chelsio/Makefile for? - $(cxgb-y) in drivers/net/chelsio/Makefile seems to be unneeded - completely unused global functions: - espi.c: t1_espi_get_intr_counts - sge.c: t1_sge_get_intr_counts - the following functions can be made static: - sge.c: t1_espi_workaround - sge.c: t1_sge_tx - subr.c: __t1_tpi_read - subr.c: __t1_tpi_write - subr.c: t1_wait_op_done shemminger said: The performance recommendations in cxgb.txt are common to all fast devices, and should be in one file rather than just for this device. I would rather see ip-sysctl.txt updated or a new file on tuning recommendations started. Some of them have consequences that aren't documented well. For example, turning off TCP timestamps risks data corruption from sequence wrap. A new driver shouldn't need so may #ifdef's unless you want to putit on older vendor versions of 2.4 Some accessor and wrapper functions like: t1_pci_read_config_4 adapter_name t1_malloc are just annoying noise. Why have useless dead code like: /* Interrupt handler */ +static int pm3393_interrupt_handler(struct cmac *cmac) +{ + u32 master_intr_status; +/* + 1. Read master interrupt register. + 2. Read BLOCK's interrupt status registers. + 3. Handle BLOCK interrupts. +*/ Jeff said: step 1: kill all the OS wrappers. And do you really need hooks for multiple MACs, when only one MAC is really supported? Typically these hooks are at a higher level anyway -- struct net_device. From: Christoph Lameter <christoph@lameter Driver modified as suggested by Pekka Enberg, Stephen Hemminger and Andrian Bunk. Reduces the size of the driver to ~260k. - clean up tabs - removed my3126.c - removed 85% of suni1x10gexp_regs.h - removed 80% of regs.h - removed various calls, renamed variables/functions. - removed system specific and other wrappers (usleep, msleep) - removed dead code - dropped redundant casts in osdep.h - dropped redundant check of kfree - dropped weird code (MODVERSIONS stuff) - reduced number of #ifdefs - use kcalloc now instead of kmalloc - Add information about known issues with the driver - Add information about authors Signed-off-by: Scott Bardone <sbardone@chelsio.com> Signed-off-by: Christoph Lameter <christoph@lameter.com> Signed-off-by: Andrew Morton <akpm@osdl.org> diff -puN /dev/null Documentation/networking/cxgb.txt
Diffstat (limited to 'drivers/net/chelsio/gmac.h')
-rw-r--r--drivers/net/chelsio/gmac.h133
1 files changed, 133 insertions, 0 deletions
diff --git a/drivers/net/chelsio/gmac.h b/drivers/net/chelsio/gmac.h
new file mode 100644
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+++ b/drivers/net/chelsio/gmac.h
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1/*****************************************************************************
2 * *
3 * File: gmac.h *
4 * $Revision: 1.3 $ *
5 * $Date: 2005/03/23 07:15:58 $ *
6 * Description: *
7 * Generic MAC functionality. *
8 * part of the Chelsio 10Gb Ethernet Driver. *
9 * *
10 * This program is free software; you can redistribute it and/or modify *
11 * it under the terms of the GNU General Public License, version 2, as *
12 * published by the Free Software Foundation. *
13 * *
14 * You should have received a copy of the GNU General Public License along *
15 * with this program; if not, write to the Free Software Foundation, Inc., *
16 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
17 * *
18 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
19 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
20 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
21 * *
22 * http://www.chelsio.com *
23 * *
24 * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
25 * All rights reserved. *
26 * *
27 * Maintainers: maintainers@chelsio.com *
28 * *
29 * Authors: Dimitrios Michailidis <dm@chelsio.com> *
30 * Tina Yang <tainay@chelsio.com> *
31 * Felix Marti <felix@chelsio.com> *
32 * Scott Bardone <sbardone@chelsio.com> *
33 * Kurt Ottaway <kottaway@chelsio.com> *
34 * Frank DiMambro <frank@chelsio.com> *
35 * *
36 * History: *
37 * *
38 ****************************************************************************/
39
40#ifndef CHELSIO_GMAC_H
41#define CHELSIO_GMAC_H
42
43#include "common.h"
44
45enum { MAC_STATS_UPDATE_FAST, MAC_STATS_UPDATE_FULL };
46enum { MAC_DIRECTION_RX = 1, MAC_DIRECTION_TX = 2 };
47
48struct cmac_statistics {
49 /* Transmit */
50 u64 TxOctetsOK;
51 u64 TxOctetsBad;
52 u64 TxUnicastFramesOK;
53 u64 TxMulticastFramesOK;
54 u64 TxBroadcastFramesOK;
55 u64 TxPauseFrames;
56 u64 TxFramesWithDeferredXmissions;
57 u64 TxLateCollisions;
58 u64 TxTotalCollisions;
59 u64 TxFramesAbortedDueToXSCollisions;
60 u64 TxUnderrun;
61 u64 TxLengthErrors;
62 u64 TxInternalMACXmitError;
63 u64 TxFramesWithExcessiveDeferral;
64 u64 TxFCSErrors;
65
66 /* Receive */
67 u64 RxOctetsOK;
68 u64 RxOctetsBad;
69 u64 RxUnicastFramesOK;
70 u64 RxMulticastFramesOK;
71 u64 RxBroadcastFramesOK;
72 u64 RxPauseFrames;
73 u64 RxFCSErrors;
74 u64 RxAlignErrors;
75 u64 RxSymbolErrors;
76 u64 RxDataErrors;
77 u64 RxSequenceErrors;
78 u64 RxRuntErrors;
79 u64 RxJabberErrors;
80 u64 RxInternalMACRcvError;
81 u64 RxInRangeLengthErrors;
82 u64 RxOutOfRangeLengthField;
83 u64 RxFrameTooLongErrors;
84};
85
86struct cmac_ops {
87 void (*destroy)(struct cmac *);
88 int (*reset)(struct cmac *);
89 int (*interrupt_enable)(struct cmac *);
90 int (*interrupt_disable)(struct cmac *);
91 int (*interrupt_clear)(struct cmac *);
92 int (*interrupt_handler)(struct cmac *);
93
94 int (*enable)(struct cmac *, int);
95 int (*disable)(struct cmac *, int);
96
97 int (*loopback_enable)(struct cmac *);
98 int (*loopback_disable)(struct cmac *);
99
100 int (*set_mtu)(struct cmac *, int mtu);
101 int (*set_rx_mode)(struct cmac *, struct t1_rx_mode *rm);
102
103 int (*set_speed_duplex_fc)(struct cmac *, int speed, int duplex, int fc);
104 int (*get_speed_duplex_fc)(struct cmac *, int *speed, int *duplex,
105 int *fc);
106
107 const struct cmac_statistics *(*statistics_update)(struct cmac *, int);
108
109 int (*macaddress_get)(struct cmac *, u8 mac_addr[6]);
110 int (*macaddress_set)(struct cmac *, u8 mac_addr[6]);
111};
112
113typedef struct _cmac_instance cmac_instance;
114
115struct cmac {
116 struct cmac_statistics stats;
117 adapter_t *adapter;
118 struct cmac_ops *ops;
119 cmac_instance *instance;
120};
121
122struct gmac {
123 unsigned int stats_update_period;
124 struct cmac *(*create)(adapter_t *adapter, int index);
125 int (*reset)(adapter_t *);
126};
127
128extern struct gmac t1_pm3393_ops;
129extern struct gmac t1_chelsio_mac_ops;
130extern struct gmac t1_vsc7321_ops;
131extern struct gmac t1_ixf1010_ops;
132extern struct gmac t1_dummy_mac_ops;
133#endif