8199d3a79c
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
151 lines
5.9 KiB
C
151 lines
5.9 KiB
C
/*****************************************************************************
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* *
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* File: cphy.h *
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* $Revision: 1.4 $ *
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* $Date: 2005/03/23 07:41:27 $ *
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* Description: *
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* part of the Chelsio 10Gb Ethernet Driver. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License, version 2, as *
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* published by the Free Software Foundation. *
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* *
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* You should have received a copy of the GNU General Public License along *
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* with this program; if not, write to the Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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* *
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
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* *
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* http://www.chelsio.com *
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* *
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* Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
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* All rights reserved. *
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* *
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* Maintainers: maintainers@chelsio.com *
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* *
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* Authors: Dimitrios Michailidis <dm@chelsio.com> *
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* Tina Yang <tainay@chelsio.com> *
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* Felix Marti <felix@chelsio.com> *
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* Scott Bardone <sbardone@chelsio.com> *
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* Kurt Ottaway <kottaway@chelsio.com> *
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* Frank DiMambro <frank@chelsio.com> *
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* *
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* History: *
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* *
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****************************************************************************/
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#ifndef CHELSIO_CPHY_H
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#define CHELSIO_CPHY_H
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#include "common.h"
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struct mdio_ops {
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void (*init)(adapter_t *adapter, const struct board_info *bi);
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int (*read)(adapter_t *adapter, int phy_addr, int mmd_addr,
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int reg_addr, unsigned int *val);
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int (*write)(adapter_t *adapter, int phy_addr, int mmd_addr,
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int reg_addr, unsigned int val);
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};
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/* PHY interrupt types */
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enum {
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cphy_cause_link_change = 0x1,
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cphy_cause_error = 0x2
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};
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struct cphy;
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/* PHY operations */
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struct cphy_ops {
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void (*destroy)(struct cphy *);
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int (*reset)(struct cphy *, int wait);
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int (*interrupt_enable)(struct cphy *);
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int (*interrupt_disable)(struct cphy *);
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int (*interrupt_clear)(struct cphy *);
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int (*interrupt_handler)(struct cphy *);
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int (*autoneg_enable)(struct cphy *);
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int (*autoneg_disable)(struct cphy *);
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int (*autoneg_restart)(struct cphy *);
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int (*advertise)(struct cphy *phy, unsigned int advertise_map);
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int (*set_loopback)(struct cphy *, int on);
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int (*set_speed_duplex)(struct cphy *phy, int speed, int duplex);
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int (*get_link_status)(struct cphy *phy, int *link_ok, int *speed,
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int *duplex, int *fc);
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};
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/* A PHY instance */
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struct cphy {
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int addr; /* PHY address */
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adapter_t *adapter; /* associated adapter */
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struct cphy_ops *ops; /* PHY operations */
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int (*mdio_read)(adapter_t *adapter, int phy_addr, int mmd_addr,
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int reg_addr, unsigned int *val);
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int (*mdio_write)(adapter_t *adapter, int phy_addr, int mmd_addr,
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int reg_addr, unsigned int val);
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struct cphy_instance *instance;
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};
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/* Convenience MDIO read/write wrappers */
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static inline int mdio_read(struct cphy *cphy, int mmd, int reg,
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unsigned int *valp)
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{
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return cphy->mdio_read(cphy->adapter, cphy->addr, mmd, reg, valp);
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}
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static inline int mdio_write(struct cphy *cphy, int mmd, int reg,
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unsigned int val)
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{
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return cphy->mdio_write(cphy->adapter, cphy->addr, mmd, reg, val);
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}
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static inline int simple_mdio_read(struct cphy *cphy, int reg,
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unsigned int *valp)
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{
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return mdio_read(cphy, 0, reg, valp);
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}
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static inline int simple_mdio_write(struct cphy *cphy, int reg,
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unsigned int val)
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{
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return mdio_write(cphy, 0, reg, val);
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}
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/* Convenience initializer */
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static inline void cphy_init(struct cphy *phy, adapter_t *adapter,
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int phy_addr, struct cphy_ops *phy_ops,
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struct mdio_ops *mdio_ops)
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{
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phy->adapter = adapter;
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phy->addr = phy_addr;
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phy->ops = phy_ops;
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if (mdio_ops) {
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phy->mdio_read = mdio_ops->read;
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phy->mdio_write = mdio_ops->write;
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}
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}
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/* Operations of the PHY-instance factory */
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struct gphy {
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/* Construct a PHY instance with the given PHY address */
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struct cphy *(*create)(adapter_t *adapter, int phy_addr,
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struct mdio_ops *mdio_ops);
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/*
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* Reset the PHY chip. This resets the whole PHY chip, not individual
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* ports.
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*/
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int (*reset)(adapter_t *adapter);
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};
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extern struct gphy t1_my3126_ops;
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extern struct gphy t1_mv88e1xxx_ops;
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extern struct gphy t1_xpak_ops;
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extern struct gphy t1_mv88x201x_ops;
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extern struct gphy t1_dummy_phy_ops;
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#endif
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