From: Arnd Bergmann <[email protected]>
I discovered that there are still a couple of drivers that rely on
beiong statically initialized from drivers/net/Space.c the way
we did in the last century. As it turns out, there are a couple
of simplifications that can be made here, as well as some minor
bugfixes.
There are four classes of drivers that use this:
- most 10mbit ISA bus ethernet drivers (and one 100mbit one)
- both ISA localtalk drivers
- several m68k ethernet drivers
- one obsolete WAN driver
I found that the drivers using in arch/m68k/ don't actually benefit
from being probed this way as they do not rely on the netdev= command
line arguments, they have simply never been changed to work like a
modern driver.
I had previously sent a patch to remove the sbni/granch driver, and
there were no objections to this patch but forgot to resend it after
some discussion about another patch in the same series.
For the ISA drivers, there is usually no way to probe multiple devices
at boot time other than the netdev= arguments, so all that logic is left
in place for the moment, but centralized in a single file that only gets
included in the kernel build if one or more of the drivers are built-in.
I'm also changing the old-style init_module() functions in these drivers
to static functions with a module_init() annotation, to more closely
resemble modern drivers. There are only a few users of the init_module()
interface remaining, and removing that would likely allow some cleanups
in the module loader code.
There are a couple of possible follow-ups:
* Most of ISA drivers could be trivially converted to use the module_init()
entry point, which would slightly change the command line syntax and
still support a single device of that type, but not more than one. We
could decide that this is fine, as few users remain that have any of
these devices, let alone more than one.
* Alternatively, the fact that the ISA drivers have never been cleaned
up can be seen as an indication that there isn't really much remaining
interest in them. We could move them to drivers/staging along with the
consolidated contents of drivers/net/Space.c and see if anyone still
uses them and eventually remove the ones that nobody has.
I can see that Paul Gortmaker removed a number of less common ISA
ethernet drivers in 2013, but at the time left these because they
were possibly still relevant.
* If we end up moving the cops localtalk driver to staging, support
for localtalk devices (though probably not appletalk over ethernet)
can arguably meet the same fate.
If someone wants to work on those follow-ups or thinks they are a
good idea, let me know, otherwise I'd leave it at this cleanup.
Arnd
Arnd Bergmann (13):
[net-next] bcmgenet: remove call to netdev_boot_setup_check
[net-next] natsemi: sonic: stop calling netdev_boot_setup_check
[net-next] appletalk: ltpc: remove static probing
[net-next] 3c509: stop calling netdev_boot_setup_check
[net-next] cs89x0: rework driver configuration
[net-next] m68k: remove legacy probing
[net-next] move netdev_boot_setup into Space.c
[net-next] make legacy ISA probe optional
[net-next] wan: remove stale Kconfig entries
[net-next] wan: remove sbni/granch driver
[net-next] wan: hostess_sv11: use module_init/module_exit helpers
[net-next] ethernet: isa: convert to module_init/module_exit
[net-next] 8390: xsurf100: avoid including lib8390.c
.../admin-guide/kernel-parameters.txt | 2 -
drivers/net/Kconfig | 7 +
drivers/net/Makefile | 3 +-
drivers/net/Space.c | 178 +-
drivers/net/appletalk/Kconfig | 4 +-
drivers/net/appletalk/ltpc.c | 7 +-
drivers/net/ethernet/3com/3c509.c | 3 -
drivers/net/ethernet/3com/3c515.c | 3 +-
drivers/net/ethernet/3com/Kconfig | 1 +
drivers/net/ethernet/8390/Kconfig | 3 +
drivers/net/ethernet/8390/Makefile | 2 +-
drivers/net/ethernet/8390/apne.c | 11 +-
drivers/net/ethernet/8390/ne.c | 5 +-
drivers/net/ethernet/8390/smc-ultra.c | 9 +-
drivers/net/ethernet/8390/wd.c | 7 +-
drivers/net/ethernet/8390/xsurf100.c | 7 +-
drivers/net/ethernet/amd/Kconfig | 2 +
drivers/net/ethernet/amd/atarilance.c | 11 +-
drivers/net/ethernet/amd/lance.c | 6 +-
drivers/net/ethernet/amd/mvme147.c | 16 +-
drivers/net/ethernet/amd/ni65.c | 6 +-
drivers/net/ethernet/amd/sun3lance.c | 19 +-
.../net/ethernet/broadcom/genet/bcmgenet.c | 2 -
drivers/net/ethernet/cirrus/Kconfig | 27 +-
drivers/net/ethernet/cirrus/cs89x0.c | 31 +-
drivers/net/ethernet/i825xx/82596.c | 24 +-
drivers/net/ethernet/i825xx/sun3_82586.c | 17 +-
drivers/net/ethernet/natsemi/jazzsonic.c | 2 -
drivers/net/ethernet/natsemi/xtsonic.c | 1 -
drivers/net/ethernet/smsc/Kconfig | 1 +
drivers/net/ethernet/smsc/smc9194.c | 6 +-
drivers/net/wan/Kconfig | 51 -
drivers/net/wan/Makefile | 1 -
drivers/net/wan/hostess_sv11.c | 6 +-
drivers/net/wan/sbni.c | 1638 -----------------
drivers/net/wan/sbni.h | 147 --
include/linux/netdevice.h | 13 -
include/net/Space.h | 10 -
net/core/dev.c | 125 --
net/ethernet/eth.c | 2 -
40 files changed, 259 insertions(+), 2157 deletions(-)
delete mode 100644 drivers/net/wan/sbni.c
delete mode 100644 drivers/net/wan/sbni.h
--
2.29.2
Cc: Paul Gortmaker <[email protected]>
Cc: "Maciej W. Rozycki" <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Jakub Kicinski <[email protected]>
Cc: Doug Berger <[email protected]>
Cc: Florian Fainelli <[email protected]>
Cc: Sam Creasey <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Finn Thain <[email protected]>
Cc: Christophe JAILLET <[email protected]>
Cc: Andrew Lunn <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Cc: Eric Dumazet <[email protected]>
Cc: Andrii Nakryiko <[email protected]>
Cc: Bartosz Golaszewski <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
From: Arnd Bergmann <[email protected]>
There are two drivers in the cs89x0 file, with the CONFIG_CS89x0_PLATFORM
symbol deciding which one is getting built. This is somewhat confusing
and makes it more likely ton configure a driver that works nowhere.
Split up the Kconfig option into separate ISA and PLATFORM drivers,
with the ISA symbol explicitly connecting to the static probing in
drivers/net/Space.c
The two drivers are still mutually incompatible at compile time,
which could be lifted by splitting them into multiple files,
but in practice this will make no difference.
The platform driver can now be enabled for compile-testing on
non-ARM machines.
Signed-off-by: Arnd Bergmann <[email protected]>
---
drivers/net/Space.c | 4 +---
drivers/net/ethernet/cirrus/Kconfig | 26 ++++++++++++++++----------
drivers/net/ethernet/cirrus/cs89x0.c | 24 +++++++++++-------------
3 files changed, 28 insertions(+), 26 deletions(-)
diff --git a/drivers/net/Space.c b/drivers/net/Space.c
index 9196a26615cc..9f573f7ded3c 100644
--- a/drivers/net/Space.c
+++ b/drivers/net/Space.c
@@ -77,11 +77,9 @@ static struct devprobe2 isa_probes[] __initdata = {
#ifdef CONFIG_SMC9194
{smc_init, 0},
#endif
-#ifdef CONFIG_CS89x0
-#ifndef CONFIG_CS89x0_PLATFORM
+#ifdef CONFIG_CS89x0_ISA
{cs89x0_probe, 0},
#endif
-#endif
#if defined(CONFIG_MVME16x_NET) || defined(CONFIG_BVME6000_NET) /* Intel */
{i82596_probe, 0}, /* I82596 */
#endif
diff --git a/drivers/net/ethernet/cirrus/Kconfig b/drivers/net/ethernet/cirrus/Kconfig
index d8af9e64dd1e..7141340a8b0e 100644
--- a/drivers/net/ethernet/cirrus/Kconfig
+++ b/drivers/net/ethernet/cirrus/Kconfig
@@ -6,7 +6,7 @@
config NET_VENDOR_CIRRUS
bool "Cirrus devices"
default y
- depends on ISA || EISA || ARM || MAC
+ depends on ISA || EISA || ARM || MAC || COMPILE_TEST
help
If you have a network (Ethernet) card belonging to this class, say Y.
@@ -18,9 +18,15 @@ config NET_VENDOR_CIRRUS
if NET_VENDOR_CIRRUS
config CS89x0
- tristate "CS89x0 support"
- depends on ISA || EISA || ARM
+ tristate
+
+config CS89x0_ISA
+ tristate "CS89x0 ISA driver support"
+ depends on HAS_IOPORT_MAP
+ depends on ISA
depends on !PPC32
+ depends on CS89x0_PLATFORM=n
+ select CS89x0
help
Support for CS89x0 chipset based Ethernet cards. If you have a
network (Ethernet) card of this type, say Y and read the file
@@ -30,15 +36,15 @@ config CS89x0
will be called cs89x0.
config CS89x0_PLATFORM
- bool "CS89x0 platform driver support" if HAS_IOPORT_MAP
- default !HAS_IOPORT_MAP
- depends on CS89x0
+ tristate "CS89x0 platform driver support"
+ depends on ARM || COMPILE_TEST
+ select CS89x0
help
- Say Y to compile the cs89x0 driver as a platform driver. This
- makes this driver suitable for use on certain evaluation boards
- such as the iMX21ADS.
+ Say Y to compile the cs89x0 platform driver. This makes this driver
+ suitable for use on certain evaluation boards such as the iMX21ADS.
- If you are unsure, say N.
+ To compile this driver as a module, choose M here. The module
+ will be called cs89x0.
config EP93XX_ETH
tristate "EP93xx Ethernet support"
diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c
index 33ace3307059..3b08cd943b7b 100644
--- a/drivers/net/ethernet/cirrus/cs89x0.c
+++ b/drivers/net/ethernet/cirrus/cs89x0.c
@@ -104,7 +104,7 @@ static char version[] __initdata =
* them to system IRQ numbers. This mapping is card specific and is set to
* the configuration of the Cirrus Eval board for this chip.
*/
-#ifndef CONFIG_CS89x0_PLATFORM
+#if IS_ENABLED(CONFIG_CS89x0_ISA)
static unsigned int netcard_portlist[] __used __initdata = {
0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240,
0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0
@@ -292,7 +292,7 @@ write_irq(struct net_device *dev, int chip_type, int irq)
int i;
if (chip_type == CS8900) {
-#ifndef CONFIG_CS89x0_PLATFORM
+#if IS_ENABLED(CONFIG_CS89x0_ISA)
/* Search the mapping table for the corresponding IRQ pin. */
for (i = 0; i != ARRAY_SIZE(cs8900_irq_map); i++)
if (cs8900_irq_map[i] == irq)
@@ -859,7 +859,7 @@ net_open(struct net_device *dev)
goto bad_out;
}
} else {
-#if !defined(CONFIG_CS89x0_PLATFORM)
+#if IS_ENABLED(CONFIG_CS89x0_ISA)
if (((1 << dev->irq) & lp->irq_map) == 0) {
pr_err("%s: IRQ %d is not in our map of allowable IRQs, which is %x\n",
dev->name, dev->irq, lp->irq_map);
@@ -1523,7 +1523,7 @@ cs89x0_probe1(struct net_device *dev, void __iomem *ioaddr, int modular)
dev->irq = i;
} else {
i = lp->isa_config & INT_NO_MASK;
-#ifndef CONFIG_CS89x0_PLATFORM
+#if IS_ENABLED(CONFIG_CS89x0_ISA)
if (lp->chip_type == CS8900) {
/* Translate the IRQ using the IRQ mapping table. */
if (i >= ARRAY_SIZE(cs8900_irq_map))
@@ -1576,7 +1576,7 @@ cs89x0_probe1(struct net_device *dev, void __iomem *ioaddr, int modular)
return retval;
}
-#ifndef CONFIG_CS89x0_PLATFORM
+#if IS_ENABLED(CONFIG_CS89x0_ISA)
/*
* This function converts the I/O port address used by the cs89x0_probe() and
* init_module() functions to the I/O memory address used by the
@@ -1682,11 +1682,7 @@ struct net_device * __init cs89x0_probe(int unit)
pr_warn("no cs8900 or cs8920 detected. Be sure to disable PnP with SETUP\n");
return ERR_PTR(err);
}
-#endif
-#endif
-
-#if defined(MODULE) && !defined(CONFIG_CS89x0_PLATFORM)
-
+#else
static struct net_device *dev_cs89x0;
/* Support the 'debug' module parm even if we're compiled for non-debug to
@@ -1759,7 +1755,7 @@ MODULE_LICENSE("GPL");
int __init init_module(void)
{
- struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
+ struct net_device *dev;
struct net_local *lp;
int ret = 0;
@@ -1768,6 +1764,7 @@ int __init init_module(void)
#else
debug = 0;
#endif
+ dev = alloc_etherdev(sizeof(struct net_local));
if (!dev)
return -ENOMEM;
@@ -1838,9 +1835,10 @@ cleanup_module(void)
release_region(dev_cs89x0->base_addr, NETCARD_IO_EXTENT);
free_netdev(dev_cs89x0);
}
-#endif /* MODULE && !CONFIG_CS89x0_PLATFORM */
+#endif /* MODULE */
+#endif /* CONFIG_CS89x0_ISA */
-#ifdef CONFIG_CS89x0_PLATFORM
+#if IS_ENABLED(CONFIG_CS89x0_PLATFORM)
static int __init cs89x0_platform_probe(struct platform_device *pdev)
{
struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
--
2.29.2
From: Arnd Bergmann <[email protected]>
The driver was merged in 1999 and has only ever seen treewide cleanups
since then, with no indication whatsoever that anyone has actually
had access to hardware for testing the patches.
From the information in the link below, it appears that the hardware
is for some leased line system in Russia that has since been
discontinued, and useless without any remote end to connect to.
As the driver still feels like a Linux-2.2 era artifact today, it
appears that the best way forward is to just delete it.
Link: https://www.tms.ru/%D0%90%D0%B4%D0%B0%D0%BF%D1%82%D0%B5%D1%80_%D0%B4%D0%BB%D1%8F_%D0%B2%D1%8B%D0%B4%D0%B5%D0%BB%D0%B5%D0%BD%D0%BD%D1%8B%D1%85_%D0%BB%D0%B8%D0%BD%D0%B8%D0%B9_Granch_SBNI12-10
Signed-off-by: Arnd Bergmann <[email protected]>
---
.../admin-guide/kernel-parameters.txt | 2 -
drivers/net/Space.c | 4 -
drivers/net/wan/Kconfig | 27 -
drivers/net/wan/Makefile | 1 -
drivers/net/wan/sbni.c | 1638 -----------------
drivers/net/wan/sbni.h | 147 --
include/net/Space.h | 3 -
7 files changed, 1822 deletions(-)
delete mode 100644 drivers/net/wan/sbni.c
delete mode 100644 drivers/net/wan/sbni.h
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index cb89dbdedc46..0dc2404207a7 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4876,8 +4876,6 @@
sa1100ir [NET]
See drivers/net/irda/sa1100_ir.c.
- sbni= [NET] Granch SBNI12 leased line adapter
-
sched_verbose [KNL] Enables verbose scheduler debug messages.
schedstats= [KNL,X86] Enable or disable scheduled statistics.
diff --git a/drivers/net/Space.c b/drivers/net/Space.c
index f40f2e38682f..49e67c9fb5a4 100644
--- a/drivers/net/Space.c
+++ b/drivers/net/Space.c
@@ -247,10 +247,6 @@ static int __init net_olddevs_init(void)
{
int num;
-#ifdef CONFIG_SBNI
- for (num = 0; num < 8; ++num)
- sbni_probe(num);
-#endif
for (num = 0; num < 8; ++num)
ethif_probe2(num);
diff --git a/drivers/net/wan/Kconfig b/drivers/net/wan/Kconfig
index f59ebafa3761..a187c814a4a6 100644
--- a/drivers/net/wan/Kconfig
+++ b/drivers/net/wan/Kconfig
@@ -313,33 +313,6 @@ config LAPBETHER
To compile this driver as a module, choose M here: the
module will be called lapbether.
- If unsure, say N.
-
-config SBNI
- tristate "Granch SBNI12 Leased Line adapter support"
- depends on X86
- help
- Driver for ISA SBNI12-xx cards which are low cost alternatives to
- leased line modems.
-
- You can find more information and last versions of drivers and
- utilities at <http://www.granch.ru/>. If you have any question you
- can send email to <[email protected]>.
-
- To compile this driver as a module, choose M here: the
- module will be called sbni.
-
- If unsure, say N.
-
-config SBNI_MULTILINE
- bool "Multiple line feature support"
- depends on SBNI
- help
- Schedule traffic for some parallel lines, via SBNI12 adapters.
-
- If you have two computers connected with two parallel lines it's
- possible to increase transfer rate nearly twice. You should have
- a program named 'sbniconfig' to configure adapters.
If unsure, say N.
diff --git a/drivers/net/wan/Makefile b/drivers/net/wan/Makefile
index 081666c36ca2..f6b92efffc94 100644
--- a/drivers/net/wan/Makefile
+++ b/drivers/net/wan/Makefile
@@ -22,7 +22,6 @@ obj-$(CONFIG_FARSYNC) += farsync.o
obj-$(CONFIG_LANMEDIA) += lmc/
obj-$(CONFIG_LAPBETHER) += lapbether.o
-obj-$(CONFIG_SBNI) += sbni.o
obj-$(CONFIG_N2) += n2.o
obj-$(CONFIG_C101) += c101.o
obj-$(CONFIG_WANXL) += wanxl.o
diff --git a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c
deleted file mode 100644
index 3092a09d3eaa..000000000000
--- a/drivers/net/wan/sbni.c
+++ /dev/null
@@ -1,1638 +0,0 @@
-/* sbni.c: Granch SBNI12 leased line adapters driver for linux
- *
- * Written 2001 by Denis I.Timofeev ([email protected])
- *
- * Previous versions were written by Yaroslav Polyakov,
- * Alexey Zverev and Max Khon.
- *
- * Driver supports SBNI12-02,-04,-05,-10,-11 cards, single and
- * double-channel, PCI and ISA modifications.
- * More info and useful utilities to work with SBNI12 cards you can find
- * at http://www.granch.com (English) or http://www.granch.ru (Russian)
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License.
- *
- *
- * 5.0.1 Jun 22 2001
- * - Fixed bug in probe
- * 5.0.0 Jun 06 2001
- * - Driver was completely redesigned by Denis I.Timofeev,
- * - now PCI/Dual, ISA/Dual (with single interrupt line) models are
- * - supported
- * 3.3.0 Thu Feb 24 21:30:28 NOVT 2000
- * - PCI cards support
- * 3.2.0 Mon Dec 13 22:26:53 NOVT 1999
- * - Completely rebuilt all the packet storage system
- * - to work in Ethernet-like style.
- * 3.1.1 just fixed some bugs (5 aug 1999)
- * 3.1.0 added balancing feature (26 apr 1999)
- * 3.0.1 just fixed some bugs (14 apr 1999).
- * 3.0.0 Initial Revision, Yaroslav Polyakov (24 Feb 1999)
- * - added pre-calculation for CRC, fixed bug with "len-2" frames,
- * - removed outbound fragmentation (MTU=1000), written CRC-calculation
- * - on asm, added work with hard_headers and now we have our own cache
- * - for them, optionally supported word-interchange on some chipsets,
- *
- * Known problem: this driver wasn't tested on multiprocessor machine.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/ptrace.h>
-#include <linux/fcntl.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/pci.h>
-#include <linux/skbuff.h>
-#include <linux/timer.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-
-#include <net/net_namespace.h>
-#include <net/arp.h>
-#include <net/Space.h>
-
-#include <asm/io.h>
-#include <asm/types.h>
-#include <asm/byteorder.h>
-#include <asm/irq.h>
-#include <linux/uaccess.h>
-
-#include "sbni.h"
-
-/* device private data */
-
-struct net_local {
- struct timer_list watchdog;
- struct net_device *watchdog_dev;
-
- spinlock_t lock;
- struct sk_buff *rx_buf_p; /* receive buffer ptr */
- struct sk_buff *tx_buf_p; /* transmit buffer ptr */
-
- unsigned int framelen; /* current frame length */
- unsigned int maxframe; /* maximum valid frame length */
- unsigned int state;
- unsigned int inppos, outpos; /* positions in rx/tx buffers */
-
- /* transmitting frame number - from frames qty to 1 */
- unsigned int tx_frameno;
-
- /* expected number of next receiving frame */
- unsigned int wait_frameno;
-
- /* count of failed attempts to frame send - 32 attempts do before
- error - while receiver tunes on opposite side of wire */
- unsigned int trans_errors;
-
- /* idle time; send pong when limit exceeded */
- unsigned int timer_ticks;
-
- /* fields used for receive level autoselection */
- int delta_rxl;
- unsigned int cur_rxl_index, timeout_rxl;
- unsigned long cur_rxl_rcvd, prev_rxl_rcvd;
-
- struct sbni_csr1 csr1; /* current value of CSR1 */
- struct sbni_in_stats in_stats; /* internal statistics */
-
- struct net_device *second; /* for ISA/dual cards */
-
-#ifdef CONFIG_SBNI_MULTILINE
- struct net_device *master;
- struct net_device *link;
-#endif
-};
-
-
-static int sbni_card_probe( unsigned long );
-static int sbni_pci_probe( struct net_device * );
-static struct net_device *sbni_probe1(struct net_device *, unsigned long, int);
-static int sbni_open( struct net_device * );
-static int sbni_close( struct net_device * );
-static netdev_tx_t sbni_start_xmit(struct sk_buff *,
- struct net_device * );
-static int sbni_ioctl( struct net_device *, struct ifreq *, int );
-static void set_multicast_list( struct net_device * );
-
-static irqreturn_t sbni_interrupt( int, void * );
-static void handle_channel( struct net_device * );
-static int recv_frame( struct net_device * );
-static void send_frame( struct net_device * );
-static int upload_data( struct net_device *,
- unsigned, unsigned, unsigned, u32 );
-static void download_data( struct net_device *, u32 * );
-static void sbni_watchdog(struct timer_list *);
-static void interpret_ack( struct net_device *, unsigned );
-static int append_frame_to_pkt( struct net_device *, unsigned, u32 );
-static void indicate_pkt( struct net_device * );
-static void card_start( struct net_device * );
-static void prepare_to_send( struct sk_buff *, struct net_device * );
-static void drop_xmit_queue( struct net_device * );
-static void send_frame_header( struct net_device *, u32 * );
-static int skip_tail( unsigned int, unsigned int, u32 );
-static int check_fhdr( u32, u32 *, u32 *, u32 *, u32 *, u32 * );
-static void change_level( struct net_device * );
-static void timeout_change_level( struct net_device * );
-static u32 calc_crc32( u32, u8 *, u32 );
-static struct sk_buff * get_rx_buf( struct net_device * );
-static int sbni_init( struct net_device * );
-
-#ifdef CONFIG_SBNI_MULTILINE
-static int enslave( struct net_device *, struct net_device * );
-static int emancipate( struct net_device * );
-#endif
-
-static const char version[] =
- "Granch SBNI12 driver ver 5.0.1 Jun 22 2001 Denis I.Timofeev.\n";
-
-static bool skip_pci_probe __initdata = false;
-static int scandone __initdata = 0;
-static int num __initdata = 0;
-
-static unsigned char rxl_tab[];
-static u32 crc32tab[];
-
-/* A list of all installed devices, for removing the driver module. */
-static struct net_device *sbni_cards[ SBNI_MAX_NUM_CARDS ];
-
-/* Lists of device's parameters */
-static u32 io[ SBNI_MAX_NUM_CARDS ] __initdata =
- { [0 ... SBNI_MAX_NUM_CARDS-1] = -1 };
-static u32 irq[ SBNI_MAX_NUM_CARDS ] __initdata;
-static u32 baud[ SBNI_MAX_NUM_CARDS ] __initdata;
-static u32 rxl[ SBNI_MAX_NUM_CARDS ] __initdata =
- { [0 ... SBNI_MAX_NUM_CARDS-1] = -1 };
-static u32 mac[ SBNI_MAX_NUM_CARDS ] __initdata;
-
-#ifndef MODULE
-typedef u32 iarr[];
-static iarr *dest[5] __initdata = { &io, &irq, &baud, &rxl, &mac };
-#endif
-
-/* A zero-terminated list of I/O addresses to be probed on ISA bus */
-static unsigned int netcard_portlist[ ] __initdata = {
- 0x210, 0x214, 0x220, 0x224, 0x230, 0x234, 0x240, 0x244, 0x250, 0x254,
- 0x260, 0x264, 0x270, 0x274, 0x280, 0x284, 0x290, 0x294, 0x2a0, 0x2a4,
- 0x2b0, 0x2b4, 0x2c0, 0x2c4, 0x2d0, 0x2d4, 0x2e0, 0x2e4, 0x2f0, 0x2f4,
- 0 };
-
-#define NET_LOCAL_LOCK(dev) (((struct net_local *)netdev_priv(dev))->lock)
-
-/*
- * Look for SBNI card which addr stored in dev->base_addr, if nonzero.
- * Otherwise, look through PCI bus. If none PCI-card was found, scan ISA.
- */
-
-static inline int __init
-sbni_isa_probe( struct net_device *dev )
-{
- if( dev->base_addr > 0x1ff &&
- request_region( dev->base_addr, SBNI_IO_EXTENT, dev->name ) &&
- sbni_probe1( dev, dev->base_addr, dev->irq ) )
-
- return 0;
- else {
- pr_err("base address 0x%lx is busy, or adapter is malfunctional!\n",
- dev->base_addr);
- return -ENODEV;
- }
-}
-
-static const struct net_device_ops sbni_netdev_ops = {
- .ndo_open = sbni_open,
- .ndo_stop = sbni_close,
- .ndo_start_xmit = sbni_start_xmit,
- .ndo_set_rx_mode = set_multicast_list,
- .ndo_do_ioctl = sbni_ioctl,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-static void __init sbni_devsetup(struct net_device *dev)
-{
- ether_setup( dev );
- dev->netdev_ops = &sbni_netdev_ops;
-}
-
-int __init sbni_probe(int unit)
-{
- struct net_device *dev;
- int err;
-
- dev = alloc_netdev(sizeof(struct net_local), "sbni",
- NET_NAME_UNKNOWN, sbni_devsetup);
- if (!dev)
- return -ENOMEM;
-
- dev->netdev_ops = &sbni_netdev_ops;
-
- sprintf(dev->name, "sbni%d", unit);
- netdev_boot_setup_check(dev);
-
- err = sbni_init(dev);
- if (err) {
- free_netdev(dev);
- return err;
- }
-
- err = register_netdev(dev);
- if (err) {
- release_region( dev->base_addr, SBNI_IO_EXTENT );
- free_netdev(dev);
- return err;
- }
- pr_info_once("%s", version);
- return 0;
-}
-
-static int __init sbni_init(struct net_device *dev)
-{
- int i;
- if( dev->base_addr )
- return sbni_isa_probe( dev );
- /* otherwise we have to perform search our adapter */
-
- if( io[ num ] != -1 ) {
- dev->base_addr = io[ num ];
- dev->irq = irq[ num ];
- } else if( scandone || io[ 0 ] != -1 ) {
- return -ENODEV;
- }
-
- /* if io[ num ] contains non-zero address, then that is on ISA bus */
- if( dev->base_addr )
- return sbni_isa_probe( dev );
-
- /* ...otherwise - scan PCI first */
- if( !skip_pci_probe && !sbni_pci_probe( dev ) )
- return 0;
-
- if( io[ num ] == -1 ) {
- /* Auto-scan will be stopped when first ISA card were found */
- scandone = 1;
- if( num > 0 )
- return -ENODEV;
- }
-
- for( i = 0; netcard_portlist[ i ]; ++i ) {
- int ioaddr = netcard_portlist[ i ];
- if( request_region( ioaddr, SBNI_IO_EXTENT, dev->name ) &&
- sbni_probe1( dev, ioaddr, 0 ))
- return 0;
- }
-
- return -ENODEV;
-}
-
-
-static int __init
-sbni_pci_probe( struct net_device *dev )
-{
- struct pci_dev *pdev = NULL;
-
- while( (pdev = pci_get_class( PCI_CLASS_NETWORK_OTHER << 8, pdev ))
- != NULL ) {
- int pci_irq_line;
- unsigned long pci_ioaddr;
-
- if( pdev->vendor != SBNI_PCI_VENDOR &&
- pdev->device != SBNI_PCI_DEVICE )
- continue;
-
- pci_ioaddr = pci_resource_start( pdev, 0 );
- pci_irq_line = pdev->irq;
-
- /* Avoid already found cards from previous calls */
- if( !request_region( pci_ioaddr, SBNI_IO_EXTENT, dev->name ) ) {
- if (pdev->subsystem_device != 2)
- continue;
-
- /* Dual adapter is present */
- if (!request_region(pci_ioaddr += 4, SBNI_IO_EXTENT,
- dev->name ) )
- continue;
- }
-
- if (pci_irq_line <= 0 || pci_irq_line >= nr_irqs)
- pr_warn(
-"WARNING: The PCI BIOS assigned this PCI card to IRQ %d, which is unlikely to work!.\n"
-"You should use the PCI BIOS setup to assign a valid IRQ line.\n",
- pci_irq_line );
-
- /* avoiding re-enable dual adapters */
- if( (pci_ioaddr & 7) == 0 && pci_enable_device( pdev ) ) {
- release_region( pci_ioaddr, SBNI_IO_EXTENT );
- pci_dev_put( pdev );
- return -EIO;
- }
- if( sbni_probe1( dev, pci_ioaddr, pci_irq_line ) ) {
- SET_NETDEV_DEV(dev, &pdev->dev);
- /* not the best thing to do, but this is all messed up
- for hotplug systems anyway... */
- pci_dev_put( pdev );
- return 0;
- }
- }
- return -ENODEV;
-}
-
-
-static struct net_device * __init
-sbni_probe1( struct net_device *dev, unsigned long ioaddr, int irq )
-{
- struct net_local *nl;
-
- if( sbni_card_probe( ioaddr ) ) {
- release_region( ioaddr, SBNI_IO_EXTENT );
- return NULL;
- }
-
- outb( 0, ioaddr + CSR0 );
-
- if( irq < 2 ) {
- unsigned long irq_mask;
-
- irq_mask = probe_irq_on();
- outb( EN_INT | TR_REQ, ioaddr + CSR0 );
- outb( PR_RES, ioaddr + CSR1 );
- mdelay(50);
- irq = probe_irq_off(irq_mask);
- outb( 0, ioaddr + CSR0 );
-
- if( !irq ) {
- pr_err("%s: can't detect device irq!\n", dev->name);
- release_region( ioaddr, SBNI_IO_EXTENT );
- return NULL;
- }
- } else if( irq == 2 )
- irq = 9;
-
- dev->irq = irq;
- dev->base_addr = ioaddr;
-
- /* Fill in sbni-specific dev fields. */
- nl = netdev_priv(dev);
- if( !nl ) {
- pr_err("%s: unable to get memory!\n", dev->name);
- release_region( ioaddr, SBNI_IO_EXTENT );
- return NULL;
- }
-
- memset( nl, 0, sizeof(struct net_local) );
- spin_lock_init( &nl->lock );
-
- /* store MAC address (generate if that isn't known) */
- *(__be16 *)dev->dev_addr = htons( 0x00ff );
- *(__be32 *)(dev->dev_addr + 2) = htonl( 0x01000000 |
- ((mac[num] ?
- mac[num] :
- (u32)((long)netdev_priv(dev))) & 0x00ffffff));
-
- /* store link settings (speed, receive level ) */
- nl->maxframe = DEFAULT_FRAME_LEN;
- nl->csr1.rate = baud[ num ];
-
- if( (nl->cur_rxl_index = rxl[ num ]) == -1 ) {
- /* autotune rxl */
- nl->cur_rxl_index = DEF_RXL;
- nl->delta_rxl = DEF_RXL_DELTA;
- } else {
- nl->delta_rxl = 0;
- }
- nl->csr1.rxl = rxl_tab[ nl->cur_rxl_index ];
- if( inb( ioaddr + CSR0 ) & 0x01 )
- nl->state |= FL_SLOW_MODE;
-
- pr_notice("%s: ioaddr %#lx, irq %d, MAC: 00:ff:01:%02x:%02x:%02x\n",
- dev->name, dev->base_addr, dev->irq,
- ((u8 *)dev->dev_addr)[3],
- ((u8 *)dev->dev_addr)[4],
- ((u8 *)dev->dev_addr)[5]);
-
- pr_notice("%s: speed %d",
- dev->name,
- ((nl->state & FL_SLOW_MODE) ? 500000 : 2000000)
- / (1 << nl->csr1.rate));
-
- if( nl->delta_rxl == 0 )
- pr_cont(", receive level 0x%x (fixed)\n", nl->cur_rxl_index);
- else
- pr_cont(", receive level (auto)\n");
-
-#ifdef CONFIG_SBNI_MULTILINE
- nl->master = dev;
- nl->link = NULL;
-#endif
-
- sbni_cards[ num++ ] = dev;
- return dev;
-}
-
-/* -------------------------------------------------------------------------- */
-
-#ifdef CONFIG_SBNI_MULTILINE
-
-static netdev_tx_t
-sbni_start_xmit( struct sk_buff *skb, struct net_device *dev )
-{
- struct net_device *p;
-
- netif_stop_queue( dev );
-
- /* Looking for idle device in the list */
- for( p = dev; p; ) {
- struct net_local *nl = netdev_priv(p);
- spin_lock( &nl->lock );
- if( nl->tx_buf_p || (nl->state & FL_LINE_DOWN) ) {
- p = nl->link;
- spin_unlock( &nl->lock );
- } else {
- /* Idle dev is found */
- prepare_to_send( skb, p );
- spin_unlock( &nl->lock );
- netif_start_queue( dev );
- return NETDEV_TX_OK;
- }
- }
-
- return NETDEV_TX_BUSY;
-}
-
-#else /* CONFIG_SBNI_MULTILINE */
-
-static netdev_tx_t
-sbni_start_xmit( struct sk_buff *skb, struct net_device *dev )
-{
- struct net_local *nl = netdev_priv(dev);
-
- netif_stop_queue( dev );
- spin_lock( &nl->lock );
-
- prepare_to_send( skb, dev );
-
- spin_unlock( &nl->lock );
- return NETDEV_TX_OK;
-}
-
-#endif /* CONFIG_SBNI_MULTILINE */
-
-/* -------------------------------------------------------------------------- */
-
-/* interrupt handler */
-
-/*
- * SBNI12D-10, -11/ISA boards within "common interrupt" mode could not
- * be looked as two independent single-channel devices. Every channel seems
- * as Ethernet interface but interrupt handler must be common. Really, first
- * channel ("master") driver only registers the handler. In its struct net_local
- * it has got pointer to "slave" channel's struct net_local and handles that's
- * interrupts too.
- * dev of successfully attached ISA SBNI boards is linked to list.
- * While next board driver is initialized, it scans this list. If one
- * has found dev with same irq and ioaddr different by 4 then it assumes
- * this board to be "master".
- */
-
-static irqreturn_t
-sbni_interrupt( int irq, void *dev_id )
-{
- struct net_device *dev = dev_id;
- struct net_local *nl = netdev_priv(dev);
- int repeat;
-
- spin_lock( &nl->lock );
- if( nl->second )
- spin_lock(&NET_LOCAL_LOCK(nl->second));
-
- do {
- repeat = 0;
- if( inb( dev->base_addr + CSR0 ) & (RC_RDY | TR_RDY) ) {
- handle_channel( dev );
- repeat = 1;
- }
- if( nl->second && /* second channel present */
- (inb( nl->second->base_addr+CSR0 ) & (RC_RDY | TR_RDY)) ) {
- handle_channel( nl->second );
- repeat = 1;
- }
- } while( repeat );
-
- if( nl->second )
- spin_unlock(&NET_LOCAL_LOCK(nl->second));
- spin_unlock( &nl->lock );
- return IRQ_HANDLED;
-}
-
-
-static void
-handle_channel( struct net_device *dev )
-{
- struct net_local *nl = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
-
- int req_ans;
- unsigned char csr0;
-
-#ifdef CONFIG_SBNI_MULTILINE
- /* Lock the master device because we going to change its local data */
- if( nl->state & FL_SLAVE )
- spin_lock(&NET_LOCAL_LOCK(nl->master));
-#endif
-
- outb( (inb( ioaddr + CSR0 ) & ~EN_INT) | TR_REQ, ioaddr + CSR0 );
-
- nl->timer_ticks = CHANGE_LEVEL_START_TICKS;
- for(;;) {
- csr0 = inb( ioaddr + CSR0 );
- if( ( csr0 & (RC_RDY | TR_RDY) ) == 0 )
- break;
-
- req_ans = !(nl->state & FL_PREV_OK);
-
- if( csr0 & RC_RDY )
- req_ans = recv_frame( dev );
-
- /*
- * TR_RDY always equals 1 here because we have owned the marker,
- * and we set TR_REQ when disabled interrupts
- */
- csr0 = inb( ioaddr + CSR0 );
- if( !(csr0 & TR_RDY) || (csr0 & RC_RDY) )
- netdev_err(dev, "internal error!\n");
-
- /* if state & FL_NEED_RESEND != 0 then tx_frameno != 0 */
- if( req_ans || nl->tx_frameno != 0 )
- send_frame( dev );
- else
- /* send marker without any data */
- outb( inb( ioaddr + CSR0 ) & ~TR_REQ, ioaddr + CSR0 );
- }
-
- outb( inb( ioaddr + CSR0 ) | EN_INT, ioaddr + CSR0 );
-
-#ifdef CONFIG_SBNI_MULTILINE
- if( nl->state & FL_SLAVE )
- spin_unlock(&NET_LOCAL_LOCK(nl->master));
-#endif
-}
-
-
-/*
- * Routine returns 1 if it needs to acknowledge received frame.
- * Empty frame received without errors won't be acknowledged.
- */
-
-static int
-recv_frame( struct net_device *dev )
-{
- struct net_local *nl = netdev_priv(dev);
- unsigned long ioaddr = dev->base_addr;
-
- u32 crc = CRC32_INITIAL;
-
- unsigned framelen = 0, frameno, ack;
- unsigned is_first, frame_ok = 0;
-
- if( check_fhdr( ioaddr, &framelen, &frameno, &ack, &is_first, &crc ) ) {
- frame_ok = framelen > 4
- ? upload_data( dev, framelen, frameno, is_first, crc )
- : skip_tail( ioaddr, framelen, crc );
- if( frame_ok )
- interpret_ack( dev, ack );
- }
-
- outb( inb( ioaddr + CSR0 ) ^ CT_ZER, ioaddr + CSR0 );
- if( frame_ok ) {
- nl->state |= FL_PREV_OK;
- if( framelen > 4 )
- nl->in_stats.all_rx_number++;
- } else {
- nl->state &= ~FL_PREV_OK;
- change_level( dev );
- nl->in_stats.all_rx_number++;
- nl->in_stats.bad_rx_number++;
- }
-
- return !frame_ok || framelen > 4;
-}
-
-
-static void
-send_frame( struct net_device *dev )
-{
- struct net_local *nl = netdev_priv(dev);
-
- u32 crc = CRC32_INITIAL;
-
- if( nl->state & FL_NEED_RESEND ) {
-
- /* if frame was sended but not ACK'ed - resend it */
- if( nl->trans_errors ) {
- --nl->trans_errors;
- if( nl->framelen != 0 )
- nl->in_stats.resend_tx_number++;
- } else {
- /* cannot xmit with many attempts */
-#ifdef CONFIG_SBNI_MULTILINE
- if( (nl->state & FL_SLAVE) || nl->link )
-#endif
- nl->state |= FL_LINE_DOWN;
- drop_xmit_queue( dev );
- goto do_send;
- }
- } else
- nl->trans_errors = TR_ERROR_COUNT;
-
- send_frame_header( dev, &crc );
- nl->state |= FL_NEED_RESEND;
- /*
- * FL_NEED_RESEND will be cleared after ACK, but if empty
- * frame sended then in prepare_to_send next frame
- */
-
-
- if( nl->framelen ) {
- download_data( dev, &crc );
- nl->in_stats.all_tx_number++;
- nl->state |= FL_WAIT_ACK;
- }
-
- outsb( dev->base_addr + DAT, (u8 *)&crc, sizeof crc );
-
-do_send:
- outb( inb( dev->base_addr + CSR0 ) & ~TR_REQ, dev->base_addr + CSR0 );
-
- if( nl->tx_frameno )
- /* next frame exists - we request card to send it */
- outb( inb( dev->base_addr + CSR0 ) | TR_REQ,
- dev->base_addr + CSR0 );
-}
-
-
-/*
- * Write the frame data into adapter's buffer memory, and calculate CRC.
- * Do padding if necessary.
- */
-
-static void
-download_data( struct net_device *dev, u32 *crc_p )
-{
- struct net_local *nl = netdev_priv(dev);
- struct sk_buff *skb = nl->tx_buf_p;
-
- unsigned len = min_t(unsigned int, skb->len - nl->outpos, nl->framelen);
-
- outsb( dev->base_addr + DAT, skb->data + nl->outpos, len );
- *crc_p = calc_crc32( *crc_p, skb->data + nl->outpos, len );
-
- /* if packet too short we should write some more bytes to pad */
- for( len = nl->framelen - len; len--; ) {
- outb( 0, dev->base_addr + DAT );
- *crc_p = CRC32( 0, *crc_p );
- }
-}
-
-
-static int
-upload_data( struct net_device *dev, unsigned framelen, unsigned frameno,
- unsigned is_first, u32 crc )
-{
- struct net_local *nl = netdev_priv(dev);
-
- int frame_ok;
-
- if( is_first ) {
- nl->wait_frameno = frameno;
- nl->inppos = 0;
- }
-
- if( nl->wait_frameno == frameno ) {
-
- if( nl->inppos + framelen <= ETHER_MAX_LEN )
- frame_ok = append_frame_to_pkt( dev, framelen, crc );
-
- /*
- * if CRC is right but framelen incorrect then transmitter
- * error was occurred... drop entire packet
- */
- else if( (frame_ok = skip_tail( dev->base_addr, framelen, crc ))
- != 0 ) {
- nl->wait_frameno = 0;
- nl->inppos = 0;
-#ifdef CONFIG_SBNI_MULTILINE
- nl->master->stats.rx_errors++;
- nl->master->stats.rx_missed_errors++;
-#else
- dev->stats.rx_errors++;
- dev->stats.rx_missed_errors++;
-#endif
- }
- /* now skip all frames until is_first != 0 */
- } else
- frame_ok = skip_tail( dev->base_addr, framelen, crc );
-
- if( is_first && !frame_ok ) {
- /*
- * Frame has been broken, but we had already stored
- * is_first... Drop entire packet.
- */
- nl->wait_frameno = 0;
-#ifdef CONFIG_SBNI_MULTILINE
- nl->master->stats.rx_errors++;
- nl->master->stats.rx_crc_errors++;
-#else
- dev->stats.rx_errors++;
- dev->stats.rx_crc_errors++;
-#endif
- }
-
- return frame_ok;
-}
-
-
-static inline void
-send_complete( struct net_device *dev )
-{
- struct net_local *nl = netdev_priv(dev);
-
-#ifdef CONFIG_SBNI_MULTILINE
- nl->master->stats.tx_packets++;
- nl->master->stats.tx_bytes += nl->tx_buf_p->len;
-#else
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += nl->tx_buf_p->len;
-#endif
- dev_consume_skb_irq(nl->tx_buf_p);
-
- nl->tx_buf_p = NULL;
-
- nl->outpos = 0;
- nl->state &= ~(FL_WAIT_ACK | FL_NEED_RESEND);
- nl->framelen = 0;
-}
-
-
-static void
-interpret_ack( struct net_device *dev, unsigned ack )
-{
- struct net_local *nl = netdev_priv(dev);
-
- if( ack == FRAME_SENT_OK ) {
- nl->state &= ~FL_NEED_RESEND;
-
- if( nl->state & FL_WAIT_ACK ) {
- nl->outpos += nl->framelen;
-
- if( --nl->tx_frameno ) {
- nl->framelen = min_t(unsigned int,
- nl->maxframe,
- nl->tx_buf_p->len - nl->outpos);
- } else {
- send_complete( dev );
-#ifdef CONFIG_SBNI_MULTILINE
- netif_wake_queue( nl->master );
-#else
- netif_wake_queue( dev );
-#endif
- }
- }
- }
-
- nl->state &= ~FL_WAIT_ACK;
-}
-
-
-/*
- * Glue received frame with previous fragments of packet.
- * Indicate packet when last frame would be accepted.
- */
-
-static int
-append_frame_to_pkt( struct net_device *dev, unsigned framelen, u32 crc )
-{
- struct net_local *nl = netdev_priv(dev);
-
- u8 *p;
-
- if( nl->inppos + framelen > ETHER_MAX_LEN )
- return 0;
-
- if( !nl->rx_buf_p && !(nl->rx_buf_p = get_rx_buf( dev )) )
- return 0;
-
- p = nl->rx_buf_p->data + nl->inppos;
- insb( dev->base_addr + DAT, p, framelen );
- if( calc_crc32( crc, p, framelen ) != CRC32_REMAINDER )
- return 0;
-
- nl->inppos += framelen - 4;
- if( --nl->wait_frameno == 0 ) /* last frame received */
- indicate_pkt( dev );
-
- return 1;
-}
-
-
-/*
- * Prepare to start output on adapter.
- * Transmitter will be actually activated when marker is accepted.
- */
-
-static void
-prepare_to_send( struct sk_buff *skb, struct net_device *dev )
-{
- struct net_local *nl = netdev_priv(dev);
-
- unsigned int len;
-
- /* nl->tx_buf_p == NULL here! */
- if( nl->tx_buf_p )
- netdev_err(dev, "memory leak!\n");
-
- nl->outpos = 0;
- nl->state &= ~(FL_WAIT_ACK | FL_NEED_RESEND);
-
- len = skb->len;
- if( len < SBNI_MIN_LEN )
- len = SBNI_MIN_LEN;
-
- nl->tx_buf_p = skb;
- nl->tx_frameno = DIV_ROUND_UP(len, nl->maxframe);
- nl->framelen = len < nl->maxframe ? len : nl->maxframe;
-
- outb( inb( dev->base_addr + CSR0 ) | TR_REQ, dev->base_addr + CSR0 );
-#ifdef CONFIG_SBNI_MULTILINE
- netif_trans_update(nl->master);
-#else
- netif_trans_update(dev);
-#endif
-}
-
-
-static void
-drop_xmit_queue( struct net_device *dev )
-{
- struct net_local *nl = netdev_priv(dev);
-
- if( nl->tx_buf_p ) {
- dev_kfree_skb_any( nl->tx_buf_p );
- nl->tx_buf_p = NULL;
-#ifdef CONFIG_SBNI_MULTILINE
- nl->master->stats.tx_errors++;
- nl->master->stats.tx_carrier_errors++;
-#else
- dev->stats.tx_errors++;
- dev->stats.tx_carrier_errors++;
-#endif
- }
-
- nl->tx_frameno = 0;
- nl->framelen = 0;
- nl->outpos = 0;
- nl->state &= ~(FL_WAIT_ACK | FL_NEED_RESEND);
-#ifdef CONFIG_SBNI_MULTILINE
- netif_start_queue( nl->master );
- netif_trans_update(nl->master);
-#else
- netif_start_queue( dev );
- netif_trans_update(dev);
-#endif
-}
-
-
-static void
-send_frame_header( struct net_device *dev, u32 *crc_p )
-{
- struct net_local *nl = netdev_priv(dev);
-
- u32 crc = *crc_p;
- u32 len_field = nl->framelen + 6; /* CRC + frameno + reserved */
- u8 value;
-
- if( nl->state & FL_NEED_RESEND )
- len_field |= FRAME_RETRY; /* non-first attempt... */
-
- if( nl->outpos == 0 )
- len_field |= FRAME_FIRST;
-
- len_field |= (nl->state & FL_PREV_OK) ? FRAME_SENT_OK : FRAME_SENT_BAD;
- outb( SBNI_SIG, dev->base_addr + DAT );
-
- value = (u8) len_field;
- outb( value, dev->base_addr + DAT );
- crc = CRC32( value, crc );
- value = (u8) (len_field >> 8);
- outb( value, dev->base_addr + DAT );
- crc = CRC32( value, crc );
-
- outb( nl->tx_frameno, dev->base_addr + DAT );
- crc = CRC32( nl->tx_frameno, crc );
- outb( 0, dev->base_addr + DAT );
- crc = CRC32( 0, crc );
- *crc_p = crc;
-}
-
-
-/*
- * if frame tail not needed (incorrect number or received twice),
- * it won't store, but CRC will be calculated
- */
-
-static int
-skip_tail( unsigned int ioaddr, unsigned int tail_len, u32 crc )
-{
- while( tail_len-- )
- crc = CRC32( inb( ioaddr + DAT ), crc );
-
- return crc == CRC32_REMAINDER;
-}
-
-
-/*
- * Preliminary checks if frame header is correct, calculates its CRC
- * and split it to simple fields
- */
-
-static int
-check_fhdr( u32 ioaddr, u32 *framelen, u32 *frameno, u32 *ack,
- u32 *is_first, u32 *crc_p )
-{
- u32 crc = *crc_p;
- u8 value;
-
- if( inb( ioaddr + DAT ) != SBNI_SIG )
- return 0;
-
- value = inb( ioaddr + DAT );
- *framelen = (u32)value;
- crc = CRC32( value, crc );
- value = inb( ioaddr + DAT );
- *framelen |= ((u32)value) << 8;
- crc = CRC32( value, crc );
-
- *ack = *framelen & FRAME_ACK_MASK;
- *is_first = (*framelen & FRAME_FIRST) != 0;
-
- if( (*framelen &= FRAME_LEN_MASK) < 6 ||
- *framelen > SBNI_MAX_FRAME - 3 )
- return 0;
-
- value = inb( ioaddr + DAT );
- *frameno = (u32)value;
- crc = CRC32( value, crc );
-
- crc = CRC32( inb( ioaddr + DAT ), crc ); /* reserved byte */
- *framelen -= 2;
-
- *crc_p = crc;
- return 1;
-}
-
-
-static struct sk_buff *
-get_rx_buf( struct net_device *dev )
-{
- /* +2 is to compensate for the alignment fixup below */
- struct sk_buff *skb = dev_alloc_skb( ETHER_MAX_LEN + 2 );
- if( !skb )
- return NULL;
-
- skb_reserve( skb, 2 ); /* Align IP on longword boundaries */
- return skb;
-}
-
-
-static void
-indicate_pkt( struct net_device *dev )
-{
- struct net_local *nl = netdev_priv(dev);
- struct sk_buff *skb = nl->rx_buf_p;
-
- skb_put( skb, nl->inppos );
-
-#ifdef CONFIG_SBNI_MULTILINE
- skb->protocol = eth_type_trans( skb, nl->master );
- netif_rx( skb );
- ++nl->master->stats.rx_packets;
- nl->master->stats.rx_bytes += nl->inppos;
-#else
- skb->protocol = eth_type_trans( skb, dev );
- netif_rx( skb );
- ++dev->stats.rx_packets;
- dev->stats.rx_bytes += nl->inppos;
-#endif
- nl->rx_buf_p = NULL; /* protocol driver will clear this sk_buff */
-}
-
-
-/* -------------------------------------------------------------------------- */
-
-/*
- * Routine checks periodically wire activity and regenerates marker if
- * connect was inactive for a long time.
- */
-
-static void
-sbni_watchdog(struct timer_list *t)
-{
- struct net_local *nl = from_timer(nl, t, watchdog);
- struct net_device *dev = nl->watchdog_dev;
- unsigned long flags;
- unsigned char csr0;
-
- spin_lock_irqsave( &nl->lock, flags );
-
- csr0 = inb( dev->base_addr + CSR0 );
- if( csr0 & RC_CHK ) {
-
- if( nl->timer_ticks ) {
- if( csr0 & (RC_RDY | BU_EMP) )
- /* receiving not active */
- nl->timer_ticks--;
- } else {
- nl->in_stats.timeout_number++;
- if( nl->delta_rxl )
- timeout_change_level( dev );
-
- outb( *(u_char *)&nl->csr1 | PR_RES,
- dev->base_addr + CSR1 );
- csr0 = inb( dev->base_addr + CSR0 );
- }
- } else
- nl->state &= ~FL_LINE_DOWN;
-
- outb( csr0 | RC_CHK, dev->base_addr + CSR0 );
-
- mod_timer(t, jiffies + SBNI_TIMEOUT);
-
- spin_unlock_irqrestore( &nl->lock, flags );
-}
-
-
-static unsigned char rxl_tab[] = {
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x08,
- 0x0a, 0x0c, 0x0f, 0x16, 0x18, 0x1a, 0x1c, 0x1f
-};
-
-#define SIZE_OF_TIMEOUT_RXL_TAB 4
-static unsigned char timeout_rxl_tab[] = {
- 0x03, 0x05, 0x08, 0x0b
-};
-
-/* -------------------------------------------------------------------------- */
-
-static void
-card_start( struct net_device *dev )
-{
- struct net_local *nl = netdev_priv(dev);
-
- nl->timer_ticks = CHANGE_LEVEL_START_TICKS;
- nl->state &= ~(FL_WAIT_ACK | FL_NEED_RESEND);
- nl->state |= FL_PREV_OK;
-
- nl->inppos = nl->outpos = 0;
- nl->wait_frameno = 0;
- nl->tx_frameno = 0;
- nl->framelen = 0;
-
- outb( *(u_char *)&nl->csr1 | PR_RES, dev->base_addr + CSR1 );
- outb( EN_INT, dev->base_addr + CSR0 );
-}
-
-/* -------------------------------------------------------------------------- */
-
-/* Receive level auto-selection */
-
-static void
-change_level( struct net_device *dev )
-{
- struct net_local *nl = netdev_priv(dev);
-
- if( nl->delta_rxl == 0 ) /* do not auto-negotiate RxL */
- return;
-
- if( nl->cur_rxl_index == 0 )
- nl->delta_rxl = 1;
- else if( nl->cur_rxl_index == 15 )
- nl->delta_rxl = -1;
- else if( nl->cur_rxl_rcvd < nl->prev_rxl_rcvd )
- nl->delta_rxl = -nl->delta_rxl;
-
- nl->csr1.rxl = rxl_tab[ nl->cur_rxl_index += nl->delta_rxl ];
- inb( dev->base_addr + CSR0 ); /* needs for PCI cards */
- outb( *(u8 *)&nl->csr1, dev->base_addr + CSR1 );
-
- nl->prev_rxl_rcvd = nl->cur_rxl_rcvd;
- nl->cur_rxl_rcvd = 0;
-}
-
-
-static void
-timeout_change_level( struct net_device *dev )
-{
- struct net_local *nl = netdev_priv(dev);
-
- nl->cur_rxl_index = timeout_rxl_tab[ nl->timeout_rxl ];
- if( ++nl->timeout_rxl >= 4 )
- nl->timeout_rxl = 0;
-
- nl->csr1.rxl = rxl_tab[ nl->cur_rxl_index ];
- inb( dev->base_addr + CSR0 );
- outb( *(unsigned char *)&nl->csr1, dev->base_addr + CSR1 );
-
- nl->prev_rxl_rcvd = nl->cur_rxl_rcvd;
- nl->cur_rxl_rcvd = 0;
-}
-
-/* -------------------------------------------------------------------------- */
-
-/*
- * Open/initialize the board.
- */
-
-static int
-sbni_open( struct net_device *dev )
-{
- struct net_local *nl = netdev_priv(dev);
- struct timer_list *w = &nl->watchdog;
-
- /*
- * For double ISA adapters within "common irq" mode, we have to
- * determine whether primary or secondary channel is initialized,
- * and set the irq handler only in first case.
- */
- if( dev->base_addr < 0x400 ) { /* ISA only */
- struct net_device **p = sbni_cards;
- for( ; *p && p < sbni_cards + SBNI_MAX_NUM_CARDS; ++p )
- if( (*p)->irq == dev->irq &&
- ((*p)->base_addr == dev->base_addr + 4 ||
- (*p)->base_addr == dev->base_addr - 4) &&
- (*p)->flags & IFF_UP ) {
-
- ((struct net_local *) (netdev_priv(*p)))
- ->second = dev;
- netdev_notice(dev, "using shared irq with %s\n",
- (*p)->name);
- nl->state |= FL_SECONDARY;
- goto handler_attached;
- }
- }
-
- if( request_irq(dev->irq, sbni_interrupt, IRQF_SHARED, dev->name, dev) ) {
- netdev_err(dev, "unable to get IRQ %d\n", dev->irq);
- return -EAGAIN;
- }
-
-handler_attached:
-
- spin_lock( &nl->lock );
- memset( &dev->stats, 0, sizeof(struct net_device_stats) );
- memset( &nl->in_stats, 0, sizeof(struct sbni_in_stats) );
-
- card_start( dev );
-
- netif_start_queue( dev );
-
- /* set timer watchdog */
- nl->watchdog_dev = dev;
- timer_setup(w, sbni_watchdog, 0);
- w->expires = jiffies + SBNI_TIMEOUT;
- add_timer( w );
-
- spin_unlock( &nl->lock );
- return 0;
-}
-
-
-static int
-sbni_close( struct net_device *dev )
-{
- struct net_local *nl = netdev_priv(dev);
-
- if( nl->second && nl->second->flags & IFF_UP ) {
- netdev_notice(dev, "Secondary channel (%s) is active!\n",
- nl->second->name);
- return -EBUSY;
- }
-
-#ifdef CONFIG_SBNI_MULTILINE
- if( nl->state & FL_SLAVE )
- emancipate( dev );
- else
- while( nl->link ) /* it's master device! */
- emancipate( nl->link );
-#endif
-
- spin_lock( &nl->lock );
-
- nl->second = NULL;
- drop_xmit_queue( dev );
- netif_stop_queue( dev );
-
- del_timer( &nl->watchdog );
-
- outb( 0, dev->base_addr + CSR0 );
-
- if( !(nl->state & FL_SECONDARY) )
- free_irq( dev->irq, dev );
- nl->state &= FL_SECONDARY;
-
- spin_unlock( &nl->lock );
- return 0;
-}
-
-
-/*
- Valid combinations in CSR0 (for probing):
-
- VALID_DECODER 0000,0011,1011,1010
-
- ; 0 ; -
- TR_REQ ; 1 ; +
- TR_RDY ; 2 ; -
- TR_RDY TR_REQ ; 3 ; +
- BU_EMP ; 4 ; +
- BU_EMP TR_REQ ; 5 ; +
- BU_EMP TR_RDY ; 6 ; -
- BU_EMP TR_RDY TR_REQ ; 7 ; +
- RC_RDY ; 8 ; +
- RC_RDY TR_REQ ; 9 ; +
- RC_RDY TR_RDY ; 10 ; -
- RC_RDY TR_RDY TR_REQ ; 11 ; -
- RC_RDY BU_EMP ; 12 ; -
- RC_RDY BU_EMP TR_REQ ; 13 ; -
- RC_RDY BU_EMP TR_RDY ; 14 ; -
- RC_RDY BU_EMP TR_RDY TR_REQ ; 15 ; -
-*/
-
-#define VALID_DECODER (2 + 8 + 0x10 + 0x20 + 0x80 + 0x100 + 0x200)
-
-
-static int
-sbni_card_probe( unsigned long ioaddr )
-{
- unsigned char csr0;
-
- csr0 = inb( ioaddr + CSR0 );
- if( csr0 != 0xff && csr0 != 0x00 ) {
- csr0 &= ~EN_INT;
- if( csr0 & BU_EMP )
- csr0 |= EN_INT;
-
- if( VALID_DECODER & (1 << (csr0 >> 4)) )
- return 0;
- }
-
- return -ENODEV;
-}
-
-/* -------------------------------------------------------------------------- */
-
-static int
-sbni_ioctl( struct net_device *dev, struct ifreq *ifr, int cmd )
-{
- struct net_local *nl = netdev_priv(dev);
- struct sbni_flags flags;
- int error = 0;
-
-#ifdef CONFIG_SBNI_MULTILINE
- struct net_device *slave_dev;
- char slave_name[ 8 ];
-#endif
-
- switch( cmd ) {
- case SIOCDEVGETINSTATS :
- if (copy_to_user( ifr->ifr_data, &nl->in_stats,
- sizeof(struct sbni_in_stats) ))
- error = -EFAULT;
- break;
-
- case SIOCDEVRESINSTATS :
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- memset( &nl->in_stats, 0, sizeof(struct sbni_in_stats) );
- break;
-
- case SIOCDEVGHWSTATE :
- flags.mac_addr = *(u32 *)(dev->dev_addr + 3);
- flags.rate = nl->csr1.rate;
- flags.slow_mode = (nl->state & FL_SLOW_MODE) != 0;
- flags.rxl = nl->cur_rxl_index;
- flags.fixed_rxl = nl->delta_rxl == 0;
-
- if (copy_to_user( ifr->ifr_data, &flags, sizeof flags ))
- error = -EFAULT;
- break;
-
- case SIOCDEVSHWSTATE :
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- spin_lock( &nl->lock );
- flags = *(struct sbni_flags*) &ifr->ifr_ifru;
- if( flags.fixed_rxl ) {
- nl->delta_rxl = 0;
- nl->cur_rxl_index = flags.rxl;
- } else {
- nl->delta_rxl = DEF_RXL_DELTA;
- nl->cur_rxl_index = DEF_RXL;
- }
-
- nl->csr1.rxl = rxl_tab[ nl->cur_rxl_index ];
- nl->csr1.rate = flags.rate;
- outb( *(u8 *)&nl->csr1 | PR_RES, dev->base_addr + CSR1 );
- spin_unlock( &nl->lock );
- break;
-
-#ifdef CONFIG_SBNI_MULTILINE
-
- case SIOCDEVENSLAVE :
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- if (copy_from_user( slave_name, ifr->ifr_data, sizeof slave_name ))
- return -EFAULT;
- slave_dev = dev_get_by_name(&init_net, slave_name );
- if( !slave_dev || !(slave_dev->flags & IFF_UP) ) {
- netdev_err(dev, "trying to enslave non-active device %s\n",
- slave_name);
- if (slave_dev)
- dev_put(slave_dev);
- return -EPERM;
- }
-
- return enslave( dev, slave_dev );
-
- case SIOCDEVEMANSIPATE :
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- return emancipate( dev );
-
-#endif /* CONFIG_SBNI_MULTILINE */
-
- default :
- return -EOPNOTSUPP;
- }
-
- return error;
-}
-
-
-#ifdef CONFIG_SBNI_MULTILINE
-
-static int
-enslave( struct net_device *dev, struct net_device *slave_dev )
-{
- struct net_local *nl = netdev_priv(dev);
- struct net_local *snl = netdev_priv(slave_dev);
-
- if( nl->state & FL_SLAVE ) /* This isn't master or free device */
- return -EBUSY;
-
- if( snl->state & FL_SLAVE ) /* That was already enslaved */
- return -EBUSY;
-
- spin_lock( &nl->lock );
- spin_lock( &snl->lock );
-
- /* append to list */
- snl->link = nl->link;
- nl->link = slave_dev;
- snl->master = dev;
- snl->state |= FL_SLAVE;
-
- /* Summary statistics of MultiLine operation will be stored
- in master's counters */
- memset( &slave_dev->stats, 0, sizeof(struct net_device_stats) );
- netif_stop_queue( slave_dev );
- netif_wake_queue( dev ); /* Now we are able to transmit */
-
- spin_unlock( &snl->lock );
- spin_unlock( &nl->lock );
- netdev_notice(dev, "slave device (%s) attached\n", slave_dev->name);
- return 0;
-}
-
-
-static int
-emancipate( struct net_device *dev )
-{
- struct net_local *snl = netdev_priv(dev);
- struct net_device *p = snl->master;
- struct net_local *nl = netdev_priv(p);
-
- if( !(snl->state & FL_SLAVE) )
- return -EINVAL;
-
- spin_lock( &nl->lock );
- spin_lock( &snl->lock );
- drop_xmit_queue( dev );
-
- /* exclude from list */
- for(;;) { /* must be in list */
- struct net_local *t = netdev_priv(p);
- if( t->link == dev ) {
- t->link = snl->link;
- break;
- }
- p = t->link;
- }
-
- snl->link = NULL;
- snl->master = dev;
- snl->state &= ~FL_SLAVE;
-
- netif_start_queue( dev );
-
- spin_unlock( &snl->lock );
- spin_unlock( &nl->lock );
-
- dev_put( dev );
- return 0;
-}
-
-#endif
-
-static void
-set_multicast_list( struct net_device *dev )
-{
- return; /* sbni always operate in promiscuos mode */
-}
-
-
-#ifdef MODULE
-module_param_hw_array(io, int, ioport, NULL, 0);
-module_param_hw_array(irq, int, irq, NULL, 0);
-module_param_array(baud, int, NULL, 0);
-module_param_array(rxl, int, NULL, 0);
-module_param_array(mac, int, NULL, 0);
-module_param(skip_pci_probe, bool, 0);
-
-MODULE_LICENSE("GPL");
-
-
-int __init init_module( void )
-{
- struct net_device *dev;
- int err;
-
- while( num < SBNI_MAX_NUM_CARDS ) {
- dev = alloc_netdev(sizeof(struct net_local), "sbni%d",
- NET_NAME_UNKNOWN, sbni_devsetup);
- if( !dev)
- break;
-
- sprintf( dev->name, "sbni%d", num );
-
- err = sbni_init(dev);
- if (err) {
- free_netdev(dev);
- break;
- }
-
- if( register_netdev( dev ) ) {
- release_region( dev->base_addr, SBNI_IO_EXTENT );
- free_netdev( dev );
- break;
- }
- }
-
- return *sbni_cards ? 0 : -ENODEV;
-}
-
-void
-cleanup_module(void)
-{
- int i;
-
- for (i = 0; i < SBNI_MAX_NUM_CARDS; ++i) {
- struct net_device *dev = sbni_cards[i];
- if (dev != NULL) {
- unregister_netdev(dev);
- release_region(dev->base_addr, SBNI_IO_EXTENT);
- free_netdev(dev);
- }
- }
-}
-
-#else /* MODULE */
-
-static int __init
-sbni_setup( char *p )
-{
- int n, parm;
-
- if( *p++ != '(' )
- goto bad_param;
-
- for( n = 0, parm = 0; *p && n < 8; ) {
- (*dest[ parm ])[ n ] = simple_strtoul( p, &p, 0 );
- if( !*p || *p == ')' )
- return 1;
- if( *p == ';' ) {
- ++p;
- ++n;
- parm = 0;
- } else if( *p++ != ',' ) {
- break;
- } else {
- if( ++parm >= 5 )
- break;
- }
- }
-bad_param:
- pr_err("Error in sbni kernel parameter!\n");
- return 0;
-}
-
-__setup( "sbni=", sbni_setup );
-
-#endif /* MODULE */
-
-/* -------------------------------------------------------------------------- */
-
-static u32
-calc_crc32( u32 crc, u8 *p, u32 len )
-{
- while( len-- )
- crc = CRC32( *p++, crc );
-
- return crc;
-}
-
-static u32 crc32tab[] __attribute__ ((aligned(8))) = {
- 0xD202EF8D, 0xA505DF1B, 0x3C0C8EA1, 0x4B0BBE37,
- 0xD56F2B94, 0xA2681B02, 0x3B614AB8, 0x4C667A2E,
- 0xDCD967BF, 0xABDE5729, 0x32D70693, 0x45D03605,
- 0xDBB4A3A6, 0xACB39330, 0x35BAC28A, 0x42BDF21C,
- 0xCFB5FFE9, 0xB8B2CF7F, 0x21BB9EC5, 0x56BCAE53,
- 0xC8D83BF0, 0xBFDF0B66, 0x26D65ADC, 0x51D16A4A,
- 0xC16E77DB, 0xB669474D, 0x2F6016F7, 0x58672661,
- 0xC603B3C2, 0xB1048354, 0x280DD2EE, 0x5F0AE278,
- 0xE96CCF45, 0x9E6BFFD3, 0x0762AE69, 0x70659EFF,
- 0xEE010B5C, 0x99063BCA, 0x000F6A70, 0x77085AE6,
- 0xE7B74777, 0x90B077E1, 0x09B9265B, 0x7EBE16CD,
- 0xE0DA836E, 0x97DDB3F8, 0x0ED4E242, 0x79D3D2D4,
- 0xF4DBDF21, 0x83DCEFB7, 0x1AD5BE0D, 0x6DD28E9B,
- 0xF3B61B38, 0x84B12BAE, 0x1DB87A14, 0x6ABF4A82,
- 0xFA005713, 0x8D076785, 0x140E363F, 0x630906A9,
- 0xFD6D930A, 0x8A6AA39C, 0x1363F226, 0x6464C2B0,
- 0xA4DEAE1D, 0xD3D99E8B, 0x4AD0CF31, 0x3DD7FFA7,
- 0xA3B36A04, 0xD4B45A92, 0x4DBD0B28, 0x3ABA3BBE,
- 0xAA05262F, 0xDD0216B9, 0x440B4703, 0x330C7795,
- 0xAD68E236, 0xDA6FD2A0, 0x4366831A, 0x3461B38C,
- 0xB969BE79, 0xCE6E8EEF, 0x5767DF55, 0x2060EFC3,
- 0xBE047A60, 0xC9034AF6, 0x500A1B4C, 0x270D2BDA,
- 0xB7B2364B, 0xC0B506DD, 0x59BC5767, 0x2EBB67F1,
- 0xB0DFF252, 0xC7D8C2C4, 0x5ED1937E, 0x29D6A3E8,
- 0x9FB08ED5, 0xE8B7BE43, 0x71BEEFF9, 0x06B9DF6F,
- 0x98DD4ACC, 0xEFDA7A5A, 0x76D32BE0, 0x01D41B76,
- 0x916B06E7, 0xE66C3671, 0x7F6567CB, 0x0862575D,
- 0x9606C2FE, 0xE101F268, 0x7808A3D2, 0x0F0F9344,
- 0x82079EB1, 0xF500AE27, 0x6C09FF9D, 0x1B0ECF0B,
- 0x856A5AA8, 0xF26D6A3E, 0x6B643B84, 0x1C630B12,
- 0x8CDC1683, 0xFBDB2615, 0x62D277AF, 0x15D54739,
- 0x8BB1D29A, 0xFCB6E20C, 0x65BFB3B6, 0x12B88320,
- 0x3FBA6CAD, 0x48BD5C3B, 0xD1B40D81, 0xA6B33D17,
- 0x38D7A8B4, 0x4FD09822, 0xD6D9C998, 0xA1DEF90E,
- 0x3161E49F, 0x4666D409, 0xDF6F85B3, 0xA868B525,
- 0x360C2086, 0x410B1010, 0xD80241AA, 0xAF05713C,
- 0x220D7CC9, 0x550A4C5F, 0xCC031DE5, 0xBB042D73,
- 0x2560B8D0, 0x52678846, 0xCB6ED9FC, 0xBC69E96A,
- 0x2CD6F4FB, 0x5BD1C46D, 0xC2D895D7, 0xB5DFA541,
- 0x2BBB30E2, 0x5CBC0074, 0xC5B551CE, 0xB2B26158,
- 0x04D44C65, 0x73D37CF3, 0xEADA2D49, 0x9DDD1DDF,
- 0x03B9887C, 0x74BEB8EA, 0xEDB7E950, 0x9AB0D9C6,
- 0x0A0FC457, 0x7D08F4C1, 0xE401A57B, 0x930695ED,
- 0x0D62004E, 0x7A6530D8, 0xE36C6162, 0x946B51F4,
- 0x19635C01, 0x6E646C97, 0xF76D3D2D, 0x806A0DBB,
- 0x1E0E9818, 0x6909A88E, 0xF000F934, 0x8707C9A2,
- 0x17B8D433, 0x60BFE4A5, 0xF9B6B51F, 0x8EB18589,
- 0x10D5102A, 0x67D220BC, 0xFEDB7106, 0x89DC4190,
- 0x49662D3D, 0x3E611DAB, 0xA7684C11, 0xD06F7C87,
- 0x4E0BE924, 0x390CD9B2, 0xA0058808, 0xD702B89E,
- 0x47BDA50F, 0x30BA9599, 0xA9B3C423, 0xDEB4F4B5,
- 0x40D06116, 0x37D75180, 0xAEDE003A, 0xD9D930AC,
- 0x54D13D59, 0x23D60DCF, 0xBADF5C75, 0xCDD86CE3,
- 0x53BCF940, 0x24BBC9D6, 0xBDB2986C, 0xCAB5A8FA,
- 0x5A0AB56B, 0x2D0D85FD, 0xB404D447, 0xC303E4D1,
- 0x5D677172, 0x2A6041E4, 0xB369105E, 0xC46E20C8,
- 0x72080DF5, 0x050F3D63, 0x9C066CD9, 0xEB015C4F,
- 0x7565C9EC, 0x0262F97A, 0x9B6BA8C0, 0xEC6C9856,
- 0x7CD385C7, 0x0BD4B551, 0x92DDE4EB, 0xE5DAD47D,
- 0x7BBE41DE, 0x0CB97148, 0x95B020F2, 0xE2B71064,
- 0x6FBF1D91, 0x18B82D07, 0x81B17CBD, 0xF6B64C2B,
- 0x68D2D988, 0x1FD5E91E, 0x86DCB8A4, 0xF1DB8832,
- 0x616495A3, 0x1663A535, 0x8F6AF48F, 0xF86DC419,
- 0x660951BA, 0x110E612C, 0x88073096, 0xFF000000
-};
-
diff --git a/drivers/net/wan/sbni.h b/drivers/net/wan/sbni.h
deleted file mode 100644
index 84264510a8ed..000000000000
--- a/drivers/net/wan/sbni.h
+++ /dev/null
@@ -1,147 +0,0 @@
-/* sbni.h: definitions for a Granch SBNI12 driver, version 5.0.0
- * Written 2001 Denis I.Timofeev ([email protected])
- * This file is distributed under the GNU GPL
- */
-
-#ifndef SBNI_H
-#define SBNI_H
-
-#ifdef SBNI_DEBUG
-#define DP( A ) A
-#else
-#define DP( A )
-#endif
-
-
-/* We don't have official vendor id yet... */
-#define SBNI_PCI_VENDOR 0x55
-#define SBNI_PCI_DEVICE 0x9f
-
-#define ISA_MODE 0x00
-#define PCI_MODE 0x01
-
-#define SBNI_IO_EXTENT 4
-
-enum sbni_reg {
- CSR0 = 0,
- CSR1 = 1,
- DAT = 2
-};
-
-/* CSR0 mapping */
-enum {
- BU_EMP = 0x02,
- RC_CHK = 0x04,
- CT_ZER = 0x08,
- TR_REQ = 0x10,
- TR_RDY = 0x20,
- EN_INT = 0x40,
- RC_RDY = 0x80
-};
-
-
-/* CSR1 mapping */
-#define PR_RES 0x80
-
-struct sbni_csr1 {
-#ifdef __LITTLE_ENDIAN_BITFIELD
- u8 rxl : 5;
- u8 rate : 2;
- u8 : 1;
-#else
- u8 : 1;
- u8 rate : 2;
- u8 rxl : 5;
-#endif
-};
-
-/* fields in frame header */
-#define FRAME_ACK_MASK (unsigned short)0x7000
-#define FRAME_LEN_MASK (unsigned short)0x03FF
-#define FRAME_FIRST (unsigned short)0x8000
-#define FRAME_RETRY (unsigned short)0x0800
-
-#define FRAME_SENT_BAD (unsigned short)0x4000
-#define FRAME_SENT_OK (unsigned short)0x3000
-
-
-/* state flags */
-enum {
- FL_WAIT_ACK = 0x01,
- FL_NEED_RESEND = 0x02,
- FL_PREV_OK = 0x04,
- FL_SLOW_MODE = 0x08,
- FL_SECONDARY = 0x10,
-#ifdef CONFIG_SBNI_MULTILINE
- FL_SLAVE = 0x20,
-#endif
- FL_LINE_DOWN = 0x40
-};
-
-
-enum {
- DEFAULT_IOBASEADDR = 0x210,
- DEFAULT_INTERRUPTNUMBER = 5,
- DEFAULT_RATE = 0,
- DEFAULT_FRAME_LEN = 1012
-};
-
-#define DEF_RXL_DELTA -1
-#define DEF_RXL 0xf
-
-#define SBNI_SIG 0x5a
-
-#define SBNI_MIN_LEN 60 /* Shortest Ethernet frame without FCS */
-#define SBNI_MAX_FRAME 1023
-#define ETHER_MAX_LEN 1518
-
-#define SBNI_TIMEOUT (HZ/10)
-
-#define TR_ERROR_COUNT 32
-#define CHANGE_LEVEL_START_TICKS 4
-
-#define SBNI_MAX_NUM_CARDS 16
-
-/* internal SBNI-specific statistics */
-struct sbni_in_stats {
- u32 all_rx_number;
- u32 bad_rx_number;
- u32 timeout_number;
- u32 all_tx_number;
- u32 resend_tx_number;
-};
-
-/* SBNI ioctl params */
-#define SIOCDEVGETINSTATS SIOCDEVPRIVATE
-#define SIOCDEVRESINSTATS SIOCDEVPRIVATE+1
-#define SIOCDEVGHWSTATE SIOCDEVPRIVATE+2
-#define SIOCDEVSHWSTATE SIOCDEVPRIVATE+3
-#define SIOCDEVENSLAVE SIOCDEVPRIVATE+4
-#define SIOCDEVEMANSIPATE SIOCDEVPRIVATE+5
-
-
-/* data packet for SIOCDEVGHWSTATE/SIOCDEVSHWSTATE ioctl requests */
-struct sbni_flags {
- u32 rxl : 4;
- u32 rate : 2;
- u32 fixed_rxl : 1;
- u32 slow_mode : 1;
- u32 mac_addr : 24;
-};
-
-/*
- * CRC-32 stuff
- */
-#define CRC32(c,crc) (crc32tab[((size_t)(crc) ^ (c)) & 0xff] ^ (((crc) >> 8) & 0x00FFFFFF))
- /* CRC generator 0xEDB88320 */
- /* CRC remainder 0x2144DF1C */
- /* CRC initial value 0x00000000 */
-#define CRC32_REMAINDER 0x2144DF1C
-#define CRC32_INITIAL 0x00000000
-
-#ifndef __initdata
-#define __initdata
-#endif
-
-#endif
-
diff --git a/include/net/Space.h b/include/net/Space.h
index 93fd6caa4bad..08ca9cef0213 100644
--- a/include/net/Space.h
+++ b/include/net/Space.h
@@ -18,6 +18,3 @@ struct net_device *cops_probe(int unit);
/* Fibre Channel adapters */
int iph5526_probe(struct net_device *dev);
-
-/* SBNI adapters */
-int sbni_probe(int unit);
--
2.29.2
On Sun, 16 May 2021, Arnd Bergmann wrote:
> For the ISA drivers, there is usually no way to probe multiple devices
> at boot time other than the netdev= arguments, so all that logic is left
> in place for the moment, but centralized in a single file that only gets
> included in the kernel build if one or more of the drivers are built-in.
As I recall at least some ISA drivers did probe multiple interfaces in
their monolithic configuration; I used a configuration with as many as
five ne2k clones for a bridge machine for a fairly large network (~300
machines) and as I recall it required no command-line parameters (but then
it was some 25 years ago, so I may well not remember correctly anymore).
It may have been with ISA PnP though (damn!).
For modular drivers it was deemed too dangerous, for obvious reasons, and
explicit parameters were the only way.
> * Most of ISA drivers could be trivially converted to use the module_init()
> entry point, which would slightly change the command line syntax and
> still support a single device of that type, but not more than one. We
> could decide that this is fine, as few users remain that have any of
> these devices, let alone more than one.
>
> * Alternatively, the fact that the ISA drivers have never been cleaned
> up can be seen as an indication that there isn't really much remaining
> interest in them. We could move them to drivers/staging along with the
> consolidated contents of drivers/net/Space.c and see if anyone still
> uses them and eventually remove the ones that nobody has.
I have a 3c509b interface in active use (although in the EISA mode, so no
need for weird probing, but it can be reconfigured), and I have an ne2k
clone in storage, so I could do some run-time verification if there is no
one else available. I'll see if I can do some driver polishing for these
devices, but given the number of other tasks on my table this is somewhat
low priority for me.
Maciej
[[RFC 00/13] [net-next] drivers/net/Space.c cleanup] On 16/05/2021 (Sun 00:13) Arnd Bergmann wrote:
> From: Arnd Bergmann <[email protected]>
[...]
> * Alternatively, the fact that the ISA drivers have never been cleaned
> up can be seen as an indication that there isn't really much remaining
> interest in them. We could move them to drivers/staging along with the
> consolidated contents of drivers/net/Space.c and see if anyone still
> uses them and eventually remove the ones that nobody has.
> I can see that Paul Gortmaker removed a number of less common ISA
> ethernet drivers in 2013, but at the time left these because they
> were possibly still relevant.
It was a thin/remote possibility, even then: From v3.9-rc1~139^2~288
In theory, it is possible that someone could still be running one of these
12+ year old P3 machines and want 3.9+ bleeding edge kernels (but unlikely).
In light of the above (remote) possibility, we can defer the removal of some
ISA network drivers that were highly popular and well tested. Typically
that means the stuff more from the mid to late '90s, some with ISA PnP
support, like the 3c509, the wd/SMC 8390 based stuff, PCnet/lance etc.
Now those 12y old machines are 20y old, and bleeding edge for this discussion
will be the the v5.14+ kernel.
Leaving the more popular cards was a concession to making progress vs.
having the whole cleanup blocked by individuals who haven't yet realized
that using ancient hardware is best done (only done?) with ancient kernels.
Maybe things are better now; people are putting more consideration to
the future of the kernel, rather than clinging to times long past?
We've since managed to delete several complete old arch dirs; which I
had previously thought impossible. I couldn't even git rid of the x86
EISA support code six years ago.[1]
I'd be willing to do a "Phase 2" of 930d52c012b8 ISA net delete; I'm
not sure the bounce through stable on the way out does much other than
muddy the git history. I'd be tempted to just propose the individual
deletes and see where that goes....
Paul.
--
[1] https://lwn.net/Articles/630115/
>
> * If we end up moving the cops localtalk driver to staging, support
> for localtalk devices (though probably not appletalk over ethernet)
> can arguably meet the same fate.
>
> If someone wants to work on those follow-ups or thinks they are a
> good idea, let me know, otherwise I'd leave it at this cleanup.
>
> Arnd
>
> Arnd Bergmann (13):
> [net-next] bcmgenet: remove call to netdev_boot_setup_check
> [net-next] natsemi: sonic: stop calling netdev_boot_setup_check
> [net-next] appletalk: ltpc: remove static probing
> [net-next] 3c509: stop calling netdev_boot_setup_check
> [net-next] cs89x0: rework driver configuration
> [net-next] m68k: remove legacy probing
> [net-next] move netdev_boot_setup into Space.c
> [net-next] make legacy ISA probe optional
> [net-next] wan: remove stale Kconfig entries
> [net-next] wan: remove sbni/granch driver
> [net-next] wan: hostess_sv11: use module_init/module_exit helpers
> [net-next] ethernet: isa: convert to module_init/module_exit
> [net-next] 8390: xsurf100: avoid including lib8390.c
>
> .../admin-guide/kernel-parameters.txt | 2 -
> drivers/net/Kconfig | 7 +
> drivers/net/Makefile | 3 +-
> drivers/net/Space.c | 178 +-
> drivers/net/appletalk/Kconfig | 4 +-
> drivers/net/appletalk/ltpc.c | 7 +-
> drivers/net/ethernet/3com/3c509.c | 3 -
> drivers/net/ethernet/3com/3c515.c | 3 +-
> drivers/net/ethernet/3com/Kconfig | 1 +
> drivers/net/ethernet/8390/Kconfig | 3 +
> drivers/net/ethernet/8390/Makefile | 2 +-
> drivers/net/ethernet/8390/apne.c | 11 +-
> drivers/net/ethernet/8390/ne.c | 5 +-
> drivers/net/ethernet/8390/smc-ultra.c | 9 +-
> drivers/net/ethernet/8390/wd.c | 7 +-
> drivers/net/ethernet/8390/xsurf100.c | 7 +-
> drivers/net/ethernet/amd/Kconfig | 2 +
> drivers/net/ethernet/amd/atarilance.c | 11 +-
> drivers/net/ethernet/amd/lance.c | 6 +-
> drivers/net/ethernet/amd/mvme147.c | 16 +-
> drivers/net/ethernet/amd/ni65.c | 6 +-
> drivers/net/ethernet/amd/sun3lance.c | 19 +-
> .../net/ethernet/broadcom/genet/bcmgenet.c | 2 -
> drivers/net/ethernet/cirrus/Kconfig | 27 +-
> drivers/net/ethernet/cirrus/cs89x0.c | 31 +-
> drivers/net/ethernet/i825xx/82596.c | 24 +-
> drivers/net/ethernet/i825xx/sun3_82586.c | 17 +-
> drivers/net/ethernet/natsemi/jazzsonic.c | 2 -
> drivers/net/ethernet/natsemi/xtsonic.c | 1 -
> drivers/net/ethernet/smsc/Kconfig | 1 +
> drivers/net/ethernet/smsc/smc9194.c | 6 +-
> drivers/net/wan/Kconfig | 51 -
> drivers/net/wan/Makefile | 1 -
> drivers/net/wan/hostess_sv11.c | 6 +-
> drivers/net/wan/sbni.c | 1638 -----------------
> drivers/net/wan/sbni.h | 147 --
> include/linux/netdevice.h | 13 -
> include/net/Space.h | 10 -
> net/core/dev.c | 125 --
> net/ethernet/eth.c | 2 -
> 40 files changed, 259 insertions(+), 2157 deletions(-)
> delete mode 100644 drivers/net/wan/sbni.c
> delete mode 100644 drivers/net/wan/sbni.h
>
> --
> 2.29.2
>
> Cc: Paul Gortmaker <[email protected]>
> Cc: "Maciej W. Rozycki" <[email protected]>
> Cc: "David S. Miller" <[email protected]>
> Cc: Jakub Kicinski <[email protected]>
> Cc: Doug Berger <[email protected]>
> Cc: Florian Fainelli <[email protected]>
> Cc: Sam Creasey <[email protected]>
> Cc: Geert Uytterhoeven <[email protected]>
> Cc: Finn Thain <[email protected]>
> Cc: Christophe JAILLET <[email protected]>
> Cc: Andrew Lunn <[email protected]>
> Cc: Alexei Starovoitov <[email protected]>
> Cc: Eric Dumazet <[email protected]>
> Cc: Andrii Nakryiko <[email protected]>
> Cc: Bartosz Golaszewski <[email protected]>
> Cc: [email protected]
> Cc: [email protected]
> Cc: [email protected]
On Mon, 17 May 2021, Paul Gortmaker wrote:
> Leaving the more popular cards was a concession to making progress vs.
> having the whole cleanup blocked by individuals who haven't yet realized
> that using ancient hardware is best done (only done?) with ancient kernels.
Hmm, it depends on what you want to achieve, although I think it will be
fair if you require anyone caring about old hardware to keep any relevant
code base, such as drivers, board support, etc. up to date as our internal
interfaces evolve. Otherwise if it works, then I fail to see a reason to
remove it just because you can.
> Maybe things are better now; people are putting more consideration to
> the future of the kernel, rather than clinging to times long past?
> We've since managed to delete several complete old arch dirs; which I
> had previously thought impossible. I couldn't even git rid of the x86
> EISA support code six years ago.[1]
Heh, that machine I raised my objection for is now back in service, after
a failure of its industrial PSU and the installation of a replacement one
(which was a bit of a challenge to track down), serving the maintenance of
the defxx driver for the DEFEA (EISA) variant of the DEC FDDI network
adapter:
platform eisa.0: Probing EISA bus 0
eisa 00:00: EISA: Mainboard AEI0401 detected
eisa 00:05: EISA: slot 5: DEC3002 detected
defxx: v1.12 2021/03/10 Lawrence V. Stefani and others
00:05: DEFEA at I/O addr = 0x5000, IRQ = 10, Hardware addr = 00-00-f8-c8-b3-b6
00:05: registered as fddi0
eisa 00:06: EISA: slot 6: NPI0303 detected
eisa 00:08: EISA: slot 8: TCM5094 detected
eth0: 3c5x9 found at 0x8000, 10baseT port, address 00:a0:24:b6:8b:db, IRQ 12.
platform eisa.0: EISA: Detected 3 cards
I just need to upgrade it with more DRAM (256MiB supported; not too bad
for an i486) so that it runs a tad more smoothly. An alternative would be
switching to an EISA Alpha machine, however I don't have any at the moment
and chasing one would be a bit of an issue.
FAOD I keep getting contacted about the FDDI stuff as it remains in use
in various industrial and scientific installations and the typical use
case nowadays is getting whatever old gear, which has fallen apart, they
have used to communicate with their equipment over FDDI with a modern
Linux machine, preferably running out of the box with one of the readily
available distributions, and one of those FDDI cards (normally the PCI
variant though), which are reasonably available still.
> I'd be willing to do a "Phase 2" of 930d52c012b8 ISA net delete; I'm
> not sure the bounce through stable on the way out does much other than
> muddy the git history. I'd be tempted to just propose the individual
> deletes and see where that goes....
Sounds fair to me.
Maciej
On Mon, May 17, 2021 at 4:38 PM Paul Gortmaker
<[email protected]> wrote:
> > From: Arnd Bergmann <[email protected]>
>
> I'd be willing to do a "Phase 2" of 930d52c012b8 ISA net delete; I'm
> not sure the bounce through stable on the way out does much other than
> muddy the git history. I'd be tempted to just propose the individual
> deletes and see where that goes....
I think the main benefit of going through drivers/staging would be that
it could be done somewhat more aggressively by moving more of the
presumed-unused hardware out at once, and waiting for media
coverage to wake up any remaining users. Then again, reverting
a removal isn't that different from reverting the move to staging.
If we do it one driver at a time, a good start might be the ones that
don't already have support for probing multiple devices in a loadable
module (ni65,smc9194, cs89x0-isa, cops, ltpc), which would let us
kill off drivers/net/Space.c by always using the module_init() logic.
These are all non-ISAPnP devices, and a second step could be
to remove support for all non-PNP devices (lance, wd80x3,
corkscrew and maybe the ISA WAN devices).
Unless we can agree to remove CONFIG_ISA completely, it's probably
best to leave ISA support for those drivers that also work on PCI, EISA
or m68k hardware, as those have the best chance to still get tested.
3c509 is probably the best maintained, given that it's the only network
driver that got converted to isa_register_driver() from the linux-2.0
style static probing. 3c515 has the distinction of being the only
remaining 100mbit one, and ne2k is obviously the one that one can
still find on ebay or the parent's attic.
Arnd
On Mon, 17 May 2021, Paul Gortmaker wrote:
> Leaving the more popular cards was a concession to making progress vs.
> having the whole cleanup blocked by individuals who haven't yet realized
> that using ancient hardware is best done (only done?) with ancient
> kernels.
>
By extension, using ancient kernels is best done with ancient userland.
And now the time has come to remove all the 'compat' nonsense.
Oh, wait, all of that old software seems to be riddled with bugs and
vulnerabilities.
And who would have thought that all those developers writing new code for
emulators and their users were holding up "progress"?
> Maybe things are better now; people are putting more consideration to
> the future of the kernel, rather than clinging to times long past?
If you've been doing engineering for a while you'll start to notice a
pattern: old designs that work get reused. That's partly why the latest
silicon contains ancient logic blocks.
When that changes, perhaps we can talk about "progress"...