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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
270 lines
8.7 KiB
C
270 lines
8.7 KiB
C
/*****************************************************************************
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* *
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* File: common.h *
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* $Revision: 1.5 $ *
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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_COMMON_H
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#define CHELSIO_COMMON_H
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#define DIMOF(x) (sizeof(x)/sizeof(x[0]))
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#define NMTUS 8
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#define MAX_NPORTS 4
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#define TCB_SIZE 128
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enum {
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CHBT_BOARD_7500,
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CHBT_BOARD_8000,
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CHBT_BOARD_CHT101,
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CHBT_BOARD_CHT110,
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CHBT_BOARD_CHT210,
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CHBT_BOARD_CHT204,
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CHBT_BOARD_N110,
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CHBT_BOARD_N210,
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CHBT_BOARD_COUGAR,
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CHBT_BOARD_6800,
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CHBT_BOARD_SIMUL
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};
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enum {
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CHBT_TERM_FPGA,
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CHBT_TERM_T1,
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CHBT_TERM_T2,
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CHBT_TERM_T3
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};
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enum {
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CHBT_MAC_CHELSIO_A,
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CHBT_MAC_IXF1010,
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CHBT_MAC_PM3393,
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CHBT_MAC_VSC7321,
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CHBT_MAC_DUMMY
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};
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enum {
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CHBT_PHY_88E1041,
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CHBT_PHY_88E1111,
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CHBT_PHY_88X2010,
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CHBT_PHY_XPAK,
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CHBT_PHY_MY3126,
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CHBT_PHY_DUMMY
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};
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enum {
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PAUSE_RX = 1,
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PAUSE_TX = 2,
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PAUSE_AUTONEG = 4
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};
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/* Revisions of T1 chip */
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#define TERM_T1A 0
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#define TERM_T1B 1
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#define TERM_T2 3
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struct tp_params {
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unsigned int pm_size;
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unsigned int cm_size;
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unsigned int pm_rx_base;
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unsigned int pm_tx_base;
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unsigned int pm_rx_pg_size;
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unsigned int pm_tx_pg_size;
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unsigned int pm_rx_num_pgs;
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unsigned int pm_tx_num_pgs;
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unsigned int use_5tuple_mode;
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};
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struct sge_params {
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unsigned int cmdQ_size[2];
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unsigned int freelQ_size[2];
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unsigned int large_buf_capacity;
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unsigned int rx_coalesce_usecs;
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unsigned int last_rx_coalesce_raw;
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unsigned int default_rx_coalesce_usecs;
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unsigned int sample_interval_usecs;
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unsigned int coalesce_enable;
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unsigned int polling;
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};
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struct mc5_params {
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unsigned int mode; /* selects MC5 width */
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unsigned int nservers; /* size of server region */
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unsigned int nroutes; /* size of routing region */
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};
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/* Default MC5 region sizes */
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#define DEFAULT_SERVER_REGION_LEN 256
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#define DEFAULT_RT_REGION_LEN 1024
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struct pci_params {
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unsigned short speed;
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unsigned char width;
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unsigned char is_pcix;
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};
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struct adapter_params {
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struct sge_params sge;
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struct mc5_params mc5;
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struct tp_params tp;
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struct pci_params pci;
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const struct board_info *brd_info;
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unsigned short mtus[NMTUS];
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unsigned int nports; /* # of ethernet ports */
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unsigned int stats_update_period;
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unsigned short chip_revision;
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unsigned char chip_version;
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unsigned char is_asic;
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};
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struct pci_err_cnt {
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unsigned int master_parity_err;
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unsigned int sig_target_abort;
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unsigned int rcv_target_abort;
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unsigned int rcv_master_abort;
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unsigned int sig_sys_err;
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unsigned int det_parity_err;
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unsigned int pio_parity_err;
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unsigned int wf_parity_err;
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unsigned int rf_parity_err;
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unsigned int cf_parity_err;
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};
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struct link_config {
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unsigned int supported; /* link capabilities */
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unsigned int advertising; /* advertised capabilities */
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unsigned short requested_speed; /* speed user has requested */
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unsigned short speed; /* actual link speed */
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unsigned char requested_duplex; /* duplex user has requested */
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unsigned char duplex; /* actual link duplex */
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unsigned char requested_fc; /* flow control user has requested */
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unsigned char fc; /* actual link flow control */
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unsigned char autoneg; /* autonegotiating? */
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};
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#define SPEED_INVALID 0xffff
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#define DUPLEX_INVALID 0xff
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struct mdio_ops;
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struct gmac;
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struct gphy;
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struct board_info {
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unsigned char board;
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unsigned char port_number;
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unsigned long caps;
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unsigned char chip_term;
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unsigned char chip_mac;
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unsigned char chip_phy;
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unsigned int clock_core;
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unsigned int clock_mc3;
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unsigned int clock_mc4;
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unsigned int espi_nports;
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unsigned int clock_cspi;
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unsigned int clock_elmer0;
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unsigned char mdio_mdien;
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unsigned char mdio_mdiinv;
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unsigned char mdio_mdc;
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unsigned char mdio_phybaseaddr;
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struct gmac *gmac;
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struct gphy *gphy;
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struct mdio_ops *mdio_ops;
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const char *desc;
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};
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#include "osdep.h"
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#ifndef PCI_VENDOR_ID_CHELSIO
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#define PCI_VENDOR_ID_CHELSIO 0x1425
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#endif
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extern struct pci_device_id t1_pci_tbl[];
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static inline int t1_is_asic(const adapter_t *adapter)
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{
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return adapter->params.is_asic;
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}
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static inline int adapter_matches_type(const adapter_t *adapter,
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int version, int revision)
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{
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return adapter->params.chip_version == version &&
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adapter->params.chip_revision == revision;
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}
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#define t1_is_T1B(adap) adapter_matches_type(adap, CHBT_TERM_T1, TERM_T1B)
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#define is_T2(adap) adapter_matches_type(adap, CHBT_TERM_T2, TERM_T2)
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/* Returns true if an adapter supports VLAN acceleration and TSO */
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static inline int vlan_tso_capable(const adapter_t *adapter)
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{
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return !t1_is_T1B(adapter);
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}
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#define for_each_port(adapter, iter) \
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for (iter = 0; iter < (adapter)->params.nports; ++iter)
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#define board_info(adapter) ((adapter)->params.brd_info)
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#define is_10G(adapter) (board_info(adapter)->caps & SUPPORTED_10000baseT_Full)
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static inline unsigned int core_ticks_per_usec(const adapter_t *adap)
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{
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return board_info(adap)->clock_core / 1000000;
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}
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int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
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int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *value);
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void t1_interrupts_enable(adapter_t *adapter);
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void t1_interrupts_disable(adapter_t *adapter);
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void t1_interrupts_clear(adapter_t *adapter);
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int elmer0_ext_intr_handler(adapter_t *adapter);
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int t1_slow_intr_handler(adapter_t *adapter);
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int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc);
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const struct board_info *t1_get_board_info(unsigned int board_id);
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const struct board_info *t1_get_board_info_from_ids(unsigned int devid,
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unsigned short ssid);
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int t1_seeprom_read(adapter_t *adapter, u32 addr, u32 *data);
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int t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
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struct adapter_params *p);
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int t1_init_hw_modules(adapter_t *adapter);
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int t1_init_sw_modules(adapter_t *adapter, const struct board_info *bi);
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void t1_free_sw_modules(adapter_t *adapter);
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void t1_fatal_err(adapter_t *adapter);
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#endif
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